mirror of
https://github.com/SoftEtherVPN/SoftEtherVPN.git
synced 2024-11-06 17:50:40 +03:00
20874 lines
400 KiB
C
20874 lines
400 KiB
C
// SoftEther VPN Source Code - Developer Edition Master Branch
|
|
// Mayaqua Kernel
|
|
|
|
|
|
// Network.c
|
|
// Network communication module
|
|
|
|
#include <GlobalConst.h>
|
|
|
|
#define ENCRYPT_C
|
|
#define NETWORK_C
|
|
|
|
#define __WINCRYPT_H__
|
|
|
|
#ifdef WIN32
|
|
// Include windows.h for Socket API
|
|
#define _WIN32_WINNT 0x0502
|
|
#define WINVER 0x0502
|
|
#include <Ws2tcpip.h>
|
|
#include <Wspiapi.h>
|
|
#include <winsock2.h>
|
|
#include <windows.h>
|
|
#include <Iphlpapi.h>
|
|
#include <ws2ipdef.h>
|
|
#include <netioapi.h>
|
|
#include <Icmpapi.h>
|
|
#endif // WIN32
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <wchar.h>
|
|
#include <stdarg.h>
|
|
#include <time.h>
|
|
#include <openssl/ssl.h>
|
|
#include <openssl/err.h>
|
|
#include <openssl/rand.h>
|
|
#include <openssl/engine.h>
|
|
#include <openssl/bio.h>
|
|
#include <openssl/x509.h>
|
|
#include <openssl/pkcs7.h>
|
|
#include <openssl/pkcs12.h>
|
|
#include <openssl/rc4.h>
|
|
#include <openssl/md5.h>
|
|
#include <openssl/sha.h>
|
|
#include <Mayaqua/Mayaqua.h>
|
|
#ifdef UNIX_MACOS
|
|
#include <sys/event.h>
|
|
#endif // UNIX_MACOS
|
|
|
|
#ifdef OS_WIN32
|
|
NETWORK_WIN32_FUNCTIONS *w32net;
|
|
struct ROUTE_CHANGE_DATA
|
|
{
|
|
OVERLAPPED Overlapped;
|
|
HANDLE Handle;
|
|
UINT NumCalled;
|
|
};
|
|
#endif // OS_WIN32
|
|
|
|
// Whether the blocking occurs in SSL
|
|
#if defined(UNIX_BSD) || defined(UNIX_MACOS)
|
|
#define FIX_SSL_BLOCKING
|
|
#endif
|
|
|
|
// IPV6_V6ONLY constant
|
|
#ifdef UNIX_LINUX
|
|
#ifndef IPV6_V6ONLY
|
|
#define IPV6_V6ONLY 26
|
|
#endif // IPV6_V6ONLY
|
|
#endif // UNIX_LINUX
|
|
|
|
#ifdef UNIX_SOLARIS
|
|
#ifndef IPV6_V6ONLY
|
|
#define IPV6_V6ONLY 0x27
|
|
#endif // IPV6_V6ONLY
|
|
#endif // UNIX_SOLARIS
|
|
|
|
// HTTP constant
|
|
static char http_detect_server_startwith[] = "<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\r\n<HTML><HEAD>\r\n<TITLE>403 Forbidden</TITLE>\r\n</HEAD><BODY>\r\n<H1>Forbidden</H1>\r\nYou don't have permission to access ";
|
|
static char http_detect_server_tag_future[] = "9C37197CA7C2428388C2E6E59B829B30";
|
|
|
|
// DNS cache list
|
|
static LIST *DnsCache;
|
|
|
|
// Lock related
|
|
static LOCK *machine_name_lock = NULL;
|
|
static LOCK *disconnect_function_lock = NULL;
|
|
static LOCK *aho = NULL;
|
|
static LOCK *socket_library_lock = NULL;
|
|
extern LOCK *openssl_lock;
|
|
static LOCK *ssl_accept_lock = NULL;
|
|
static LOCK *ssl_connect_lock = NULL;
|
|
static COUNTER *num_tcp_connections = NULL;
|
|
static LOCK *dns_lock = NULL;
|
|
static LOCK *unix_dns_server_addr_lock = NULL;
|
|
static IP unix_dns_server;
|
|
static LIST *HostCacheList = NULL;
|
|
static LIST *WaitThreadList = NULL;
|
|
static bool disable_cache = false;
|
|
static UCHAR machine_ip_process_hash[SHA1_SIZE];
|
|
static LOCK *machine_ip_process_hash_lock = NULL;
|
|
static LOCK *current_global_ip_lock = NULL;
|
|
static LOCK *current_fqdn_lock = NULL;
|
|
static bool current_global_ip_set = false;
|
|
static IP current_glocal_ipv4 = {0};
|
|
static IP current_glocal_ipv6 = {0};
|
|
static char current_fqdn[MAX_SIZE];
|
|
static bool g_no_rudp_server = false;
|
|
static bool g_no_rudp_register = false;
|
|
static bool g_natt_low_priority = false;
|
|
static LOCK *host_ip_address_list_cache_lock = NULL;
|
|
static UINT64 host_ip_address_list_cache_last = 0;
|
|
static LIST *host_ip_address_cache = NULL;
|
|
static bool disable_gethostname_by_accept = false;
|
|
static COUNTER *getip_thread_counter = NULL;
|
|
static UINT max_getip_thread = 0;
|
|
|
|
|
|
static LIST *ip_clients = NULL;
|
|
|
|
static LIST *local_mac_list = NULL;
|
|
static LOCK *local_mac_list_lock = NULL;
|
|
|
|
static UINT rand_port_numbers[256] = {0};
|
|
|
|
|
|
static bool g_use_privateip_file = false;
|
|
static bool g_source_ip_validation_force_disable = false;
|
|
|
|
static DH_CTX *dh_param = NULL;
|
|
|
|
typedef struct PRIVATE_IP_SUBNET
|
|
{
|
|
UINT Ip, Mask, Ip2;
|
|
} PRIVATE_IP_SUBNET;
|
|
|
|
static LIST *g_private_ip_list = NULL;
|
|
|
|
|
|
static LIST *g_dyn_value_list = NULL;
|
|
|
|
|
|
|
|
//#define RUDP_DETAIL_LOG
|
|
|
|
|
|
|
|
|
|
// Get a value from a dynamic value list (Returns a default value if the value is not found)
|
|
UINT64 GetDynValueOrDefault(char *name, UINT64 default_value, UINT64 min_value, UINT64 max_value)
|
|
{
|
|
UINT64 ret = GetDynValue(name);
|
|
|
|
if (ret == 0)
|
|
{
|
|
return default_value;
|
|
}
|
|
|
|
if (ret < min_value)
|
|
{
|
|
ret = min_value;
|
|
}
|
|
|
|
if (ret > max_value)
|
|
{
|
|
ret = max_value;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Get a value from a dynamic value list (Returns a default value if the value is not found)
|
|
// The value is limited to 1/5 to 50 times of the default value for safety
|
|
UINT64 GetDynValueOrDefaultSafe(char *name, UINT64 default_value)
|
|
{
|
|
return GetDynValueOrDefault(name, default_value, default_value / (UINT64)5, default_value * (UINT64)50);
|
|
}
|
|
|
|
// Get a value from a dynamic value list
|
|
UINT64 GetDynValue(char *name)
|
|
{
|
|
UINT64 ret = 0;
|
|
// Validate arguments
|
|
if (name == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (g_dyn_value_list == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
LockList(g_dyn_value_list);
|
|
{
|
|
UINT i;
|
|
|
|
for (i = 0; i < LIST_NUM(g_dyn_value_list); i++)
|
|
{
|
|
DYN_VALUE *vv = LIST_DATA(g_dyn_value_list, i);
|
|
|
|
if (StrCmpi(vv->Name, name) == 0)
|
|
{
|
|
ret = vv->Value;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
UnlockList(g_dyn_value_list);
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Set the value to the dynamic value list
|
|
void SetDynListValue(char *name, UINT64 value)
|
|
{
|
|
// Validate arguments
|
|
if (name == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (g_dyn_value_list == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
LockList(g_dyn_value_list);
|
|
{
|
|
UINT i;
|
|
DYN_VALUE *v = NULL;
|
|
|
|
for (i = 0; i < LIST_NUM(g_dyn_value_list); i++)
|
|
{
|
|
DYN_VALUE *vv = LIST_DATA(g_dyn_value_list, i);
|
|
|
|
if (StrCmpi(vv->Name, name) == 0)
|
|
{
|
|
v = vv;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (v == NULL)
|
|
{
|
|
v = ZeroMalloc(sizeof(DYN_VALUE));
|
|
StrCpy(v->Name, sizeof(v->Name), name);
|
|
|
|
Add(g_dyn_value_list, v);
|
|
}
|
|
|
|
v->Value = value;
|
|
}
|
|
UnlockList(g_dyn_value_list);
|
|
}
|
|
|
|
// Apply by extracting dynamic value list from the specified PACK
|
|
void ExtractAndApplyDynList(PACK *p)
|
|
{
|
|
BUF *b;
|
|
// Validate arguments
|
|
if (p == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
b = PackGetBuf(p, "DynList");
|
|
if (b == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
AddDynList(b);
|
|
|
|
FreeBuf(b);
|
|
}
|
|
|
|
// Insert the data to the dynamic value list
|
|
void AddDynList(BUF *b)
|
|
{
|
|
PACK *p;
|
|
TOKEN_LIST *t;
|
|
// Validate arguments
|
|
if (b == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
SeekBufToBegin(b);
|
|
|
|
p = BufToPack(b);
|
|
if (p == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
t = GetPackElementNames(p);
|
|
if (t != NULL)
|
|
{
|
|
UINT i;
|
|
|
|
for (i = 0; i < t->NumTokens; i++)
|
|
{
|
|
char *name = t->Token[i];
|
|
UINT64 v = PackGetInt64(p, name);
|
|
|
|
SetDynListValue(name, v);
|
|
}
|
|
|
|
FreeToken(t);
|
|
}
|
|
|
|
FreePack(p);
|
|
}
|
|
|
|
// Initialization of the dynamic value list
|
|
void InitDynList()
|
|
{
|
|
g_dyn_value_list = NewList(NULL);
|
|
}
|
|
|
|
// Solution of dynamic value list
|
|
void FreeDynList()
|
|
{
|
|
UINT i;
|
|
if (g_dyn_value_list == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < LIST_NUM(g_dyn_value_list); i++)
|
|
{
|
|
DYN_VALUE *d = LIST_DATA(g_dyn_value_list, i);
|
|
|
|
Free(d);
|
|
}
|
|
|
|
ReleaseList(g_dyn_value_list);
|
|
|
|
g_dyn_value_list = NULL;
|
|
}
|
|
|
|
// Disable NAT-T function globally
|
|
void DisableRDUPServerGlobally()
|
|
{
|
|
g_no_rudp_server = true;
|
|
}
|
|
|
|
// Get the current time zone
|
|
int GetCurrentTimezone()
|
|
{
|
|
int ret = 0;
|
|
|
|
#ifdef OS_WIN32
|
|
ret = GetCurrentTimezoneWin32();
|
|
#else // OS_WIN32
|
|
{
|
|
#if defined(UNIX_MACOS) || defined(UNIX_BSD)
|
|
struct timeval tv;
|
|
struct timezone tz;
|
|
|
|
Zero(&tv, sizeof(tv));
|
|
Zero(&tz, sizeof(tz));
|
|
|
|
gettimeofday(&tv, &tz);
|
|
|
|
ret = tz.tz_minuteswest;
|
|
|
|
#else // defined(UNIX_MACOS) || defined(UNIX_BSD)
|
|
tzset();
|
|
|
|
ret = timezone / 60;
|
|
#endif // defined(UNIX_MACOS) || defined(UNIX_BSD)
|
|
}
|
|
#endif // OS_WIN32
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Flag of whether to use the DNS proxy
|
|
bool IsUseDnsProxy()
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// Flag of whether to use an alternate host name
|
|
bool IsUseAlternativeHostname()
|
|
{
|
|
|
|
return false;
|
|
}
|
|
|
|
#ifdef OS_WIN32
|
|
// Get the current time zone (Win32)
|
|
int GetCurrentTimezoneWin32()
|
|
{
|
|
TIME_ZONE_INFORMATION info;
|
|
Zero(&info, sizeof(info));
|
|
|
|
if (GetTimeZoneInformation(&info) == TIME_ZONE_ID_INVALID)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
return info.Bias;
|
|
}
|
|
#endif // OS_WIN32
|
|
|
|
|
|
// Set the current FQDN of the DDNS
|
|
void SetCurrentDDnsFqdn(char *name)
|
|
{
|
|
// Validate arguments
|
|
if (name == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Lock(current_fqdn_lock);
|
|
{
|
|
StrCpy(current_fqdn, sizeof(current_fqdn), name);
|
|
}
|
|
Unlock(current_fqdn_lock);
|
|
}
|
|
|
|
// Get the current DDNS FQDN hash
|
|
UINT GetCurrentDDnsFqdnHash()
|
|
{
|
|
UINT ret;
|
|
UCHAR hash[SHA1_SIZE];
|
|
char name[MAX_SIZE];
|
|
|
|
ClearStr(name, sizeof(name));
|
|
GetCurrentDDnsFqdn(name, sizeof(name));
|
|
|
|
Trim(name);
|
|
StrUpper(name);
|
|
|
|
Sha1(hash, name, StrLen(name));
|
|
|
|
Copy(&ret, hash, sizeof(UINT));
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Get the current DDNS FQDN
|
|
void GetCurrentDDnsFqdn(char *name, UINT size)
|
|
{
|
|
ClearStr(name, size);
|
|
// Validate arguments
|
|
if (name == NULL || size == 0)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Lock(current_fqdn_lock);
|
|
{
|
|
StrCpy(name, size, current_fqdn);
|
|
}
|
|
Unlock(current_fqdn_lock);
|
|
|
|
Trim(name);
|
|
}
|
|
|
|
// Check whether the specified MAC address exists on the local host (high speed)
|
|
bool IsMacAddressLocalFast(void *addr)
|
|
{
|
|
bool ret = false;
|
|
// Validate arguments
|
|
if (addr == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
Lock(local_mac_list_lock);
|
|
{
|
|
if (local_mac_list == NULL)
|
|
{
|
|
// First enumeration
|
|
RefreshLocalMacAddressList();
|
|
}
|
|
|
|
ret = IsMacAddressLocalInner(local_mac_list, addr);
|
|
}
|
|
Unlock(local_mac_list_lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Update the local MAC address list
|
|
void RefreshLocalMacAddressList()
|
|
{
|
|
Lock(local_mac_list_lock);
|
|
{
|
|
if (local_mac_list != NULL)
|
|
{
|
|
FreeNicList(local_mac_list);
|
|
}
|
|
|
|
local_mac_list = GetNicList();
|
|
}
|
|
Unlock(local_mac_list_lock);
|
|
}
|
|
|
|
// Check whether the specified MAC address exists on the local host
|
|
bool IsMacAddressLocalInner(LIST *o, void *addr)
|
|
{
|
|
bool ret = false;
|
|
UINT i;
|
|
// Validate arguments
|
|
if (o == NULL || addr == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
for (i = 0; i < LIST_NUM(o); i++)
|
|
{
|
|
NIC_ENTRY *e = LIST_DATA(o, i);
|
|
|
|
if (Cmp(e->MacAddress, addr, 6) == 0)
|
|
{
|
|
ret = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Get a list of the NICs on the computer
|
|
LIST *GetNicList()
|
|
{
|
|
LIST *o = NULL;
|
|
|
|
#ifdef OS_WIN32
|
|
o = Win32GetNicList();
|
|
|
|
if (o != NULL)
|
|
{
|
|
return o;
|
|
}
|
|
|
|
#endif // OS_WIN32
|
|
|
|
return NewListFast(NULL);
|
|
}
|
|
|
|
#ifdef OS_WIN32
|
|
LIST *Win32GetNicList()
|
|
{
|
|
UINT i;
|
|
LIST *o = NewListFast(NULL);
|
|
MS_ADAPTER_LIST *al = MsCreateAdapterList();
|
|
|
|
if (al == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
for (i = 0; i < al->Num; i++)
|
|
{
|
|
MS_ADAPTER *a = al->Adapters[i];
|
|
|
|
if (a->Type == 6 && a->AddressSize == 6)
|
|
{
|
|
NIC_ENTRY *e = ZeroMalloc(sizeof(NIC_ENTRY));
|
|
|
|
StrCpy(e->IfName, sizeof(e->IfName), a->Title);
|
|
Copy(e->MacAddress, a->Address, 6);
|
|
|
|
Add(o, e);
|
|
}
|
|
}
|
|
|
|
MsFreeAdapterList(al);
|
|
|
|
return o;
|
|
}
|
|
#endif // OS_WIN32
|
|
|
|
// Release the NIC list
|
|
void FreeNicList(LIST *o)
|
|
{
|
|
UINT i;
|
|
// Validate arguments
|
|
if (o == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < LIST_NUM(o); i++)
|
|
{
|
|
NIC_ENTRY *e = LIST_DATA(o, i);
|
|
|
|
Free(e);
|
|
}
|
|
|
|
ReleaseList(o);
|
|
}
|
|
|
|
// If the computer is connected to the FLET'S line currently, detect the type of the line (obsolete)
|
|
UINT DetectFletsType()
|
|
{
|
|
UINT ret = 0;
|
|
//LIST *o = GetHostIPAddressList();
|
|
// UINT i;
|
|
|
|
/*
|
|
for (i = 0;i < LIST_NUM(o);i++)
|
|
{
|
|
IP *ip = LIST_DATA(o, i);
|
|
|
|
if (IsIP6(ip))
|
|
{
|
|
char ip_str[MAX_SIZE];
|
|
|
|
IPToStr(ip_str, sizeof(ip_str), ip);
|
|
|
|
if (IsInSameNetwork6ByStr(ip_str, "2001:c90::", "/32"))
|
|
{
|
|
// NTT East B-FLETs
|
|
ret |= FLETS_DETECT_TYPE_EAST_BFLETS_PRIVATE;
|
|
}
|
|
|
|
if (IsInSameNetwork6ByStr(ip_str, "2408:200::", "/23"))
|
|
{
|
|
// Wrapping in network of NTT East NGN
|
|
ret |= FLETS_DETECT_TYPE_EAST_NGN_PRIVATE;
|
|
}
|
|
|
|
if (IsInSameNetwork6ByStr(ip_str, "2001:a200::", "/23"))
|
|
{
|
|
// Wrapping in network of NTT West NGN
|
|
ret |= FLETS_DETECT_TYPE_WEST_NGN_PRIVATE;
|
|
}
|
|
}
|
|
}
|
|
|
|
FreeHostIPAddressList(o);
|
|
*/
|
|
return ret;
|
|
}
|
|
|
|
// Query for the IP address using the DNS proxy for the B FLETs
|
|
bool GetIPViaDnsProxyForJapanFlets(IP *ip_ret, char *hostname, bool ipv6, UINT timeout, bool *cancel, char *dns_proxy_hostname)
|
|
{
|
|
SOCK *s;
|
|
char connect_hostname[MAX_SIZE];
|
|
char connect_hostname2[MAX_SIZE];
|
|
IP dns_proxy_ip;
|
|
bool ret = false;
|
|
bool dummy_flag = false;
|
|
char request_str[512];
|
|
// Validate arguments
|
|
if (ip_ret == NULL || hostname == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
if (timeout == 0)
|
|
{
|
|
timeout = BFLETS_DNS_PROXY_TIMEOUT_FOR_QUERY;
|
|
}
|
|
if (cancel == NULL)
|
|
{
|
|
cancel = &dummy_flag;
|
|
}
|
|
|
|
// Get the IP address of the DNS proxy server
|
|
if (IsEmptyStr(dns_proxy_hostname))
|
|
{
|
|
// B FLETs
|
|
if (GetDnsProxyIPAddressForJapanBFlets(&dns_proxy_ip, BFLETS_DNS_PROXY_TIMEOUT_FOR_GET_F, cancel) == false)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// FLET'S NEXT
|
|
if (GetIP4Ex6Ex2(&dns_proxy_ip, dns_proxy_hostname, FLETS_NGN_DNS_QUERY_TIMEOUT, true, cancel, true) == false)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (*cancel)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
IPToStr(connect_hostname, sizeof(connect_hostname), &dns_proxy_ip);
|
|
|
|
/*{
|
|
StrCpy(connect_hostname, sizeof(connect_hostname), "2409:250:62c0:100:6a05:caff:fe09:5158");
|
|
}*/
|
|
|
|
StrCpy(connect_hostname2, sizeof(connect_hostname2), connect_hostname);
|
|
if (IsIP6(&dns_proxy_ip))
|
|
{
|
|
Format(connect_hostname2, sizeof(connect_hostname2), "[%s]", connect_hostname);
|
|
}
|
|
|
|
s = ConnectEx3(connect_hostname, BFLETS_DNS_PROXY_PORT, timeout, cancel, NULL, NULL, false, false);
|
|
|
|
if (s == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (*cancel)
|
|
{
|
|
Disconnect(s);
|
|
ReleaseSock(s);
|
|
|
|
return false;
|
|
}
|
|
|
|
SetTimeout(s, timeout);
|
|
|
|
// Start the SSL
|
|
if (StartSSLEx(s, NULL, NULL, 0, NULL) && (*cancel == false))
|
|
{
|
|
UCHAR hash[SHA1_SIZE];
|
|
BUF *hash2 = StrToBin(BFLETS_DNS_PROXY_CERT_HASH);
|
|
|
|
Zero(hash, sizeof(hash));
|
|
GetXDigest(s->RemoteX, hash, true);
|
|
|
|
if (Cmp(hash, hash2->Buf, SHA1_SIZE) == 0)
|
|
{
|
|
// Send the HTTP Request
|
|
Format(request_str, sizeof(request_str),
|
|
"GET " BFLETS_DNS_PROXY_PATH "?q=%s&ipv6=%u\r\n"
|
|
"\r\n",
|
|
hostname, ipv6, connect_hostname2);
|
|
|
|
if (SendAll(s, request_str, StrLen(request_str), true))
|
|
{
|
|
if (*cancel == false)
|
|
{
|
|
BUF *recv_buf = NewBuf();
|
|
UINT port_ret;
|
|
|
|
while (true)
|
|
{
|
|
UCHAR tmp[MAX_SIZE];
|
|
UINT r;
|
|
|
|
r = Recv(s, tmp, sizeof(tmp), true);
|
|
|
|
if (r == 0 || (recv_buf->Size > 65536))
|
|
{
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
WriteBuf(recv_buf, tmp, r);
|
|
}
|
|
}
|
|
|
|
ret = RUDPParseIPAndPortStr(recv_buf->Buf, recv_buf->Size, ip_ret, &port_ret);
|
|
|
|
FreeBuf(recv_buf);
|
|
}
|
|
}
|
|
}
|
|
|
|
FreeBuf(hash2);
|
|
}
|
|
|
|
Disconnect(s);
|
|
ReleaseSock(s);
|
|
|
|
if (ret)
|
|
{
|
|
NewDnsCache(hostname, ip_ret);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Get the IP address of the available DNS proxy in B-FLET'S service that is provided by NTT East of Japan
|
|
bool GetDnsProxyIPAddressForJapanBFlets(IP *ip_ret, UINT timeout, bool *cancel)
|
|
{
|
|
BUF *b;
|
|
LIST *o;
|
|
bool ret = false;
|
|
// Validate arguments
|
|
if (ip_ret == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
if (timeout == 0)
|
|
{
|
|
timeout = BFLETS_DNS_PROXY_TIMEOUT_FOR_GET_F;
|
|
}
|
|
|
|
b = QueryFileByUdpForJapanBFlets(timeout, cancel);
|
|
|
|
if (b == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
o = ReadIni(b);
|
|
|
|
if (o != NULL)
|
|
{
|
|
INI_ENTRY *e = GetIniEntry(o, "DDnsServerForBFlets");
|
|
|
|
if (e != NULL)
|
|
{
|
|
char *s = e->Value;
|
|
|
|
if (IsEmptyStr(s) == false)
|
|
{
|
|
IP ip;
|
|
|
|
if (StrToIP(&ip, s))
|
|
{
|
|
if (IsZeroIp(&ip) == false)
|
|
{
|
|
Copy(ip_ret, &ip, sizeof(IP));
|
|
ret = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
FreeIni(o);
|
|
FreeBuf(b);
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Get a valid F.txt file in B-FLET'S service that is provided by NTT East of Japan
|
|
BUF *QueryFileByUdpForJapanBFlets(UINT timeout, bool *cancel)
|
|
{
|
|
bool dummy_flag = false;
|
|
BUF *txt_buf = NULL;
|
|
BUF *ret = NULL;
|
|
LIST *ip_list = NULL;
|
|
UINT i;
|
|
// Validate arguments
|
|
if (cancel == NULL)
|
|
{
|
|
cancel = &dummy_flag;
|
|
}
|
|
if (timeout == 0)
|
|
{
|
|
timeout = BFLETS_DNS_PROXY_TIMEOUT_FOR_GET_F;
|
|
}
|
|
|
|
txt_buf = ReadDump(UDP_FILE_QUERY_BFLETS_TXT_FILENAME);
|
|
if (txt_buf == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
ip_list = NewListFast(NULL);
|
|
|
|
while (true)
|
|
{
|
|
char *line = CfgReadNextLine(txt_buf);
|
|
if (line == NULL)
|
|
{
|
|
break;
|
|
}
|
|
|
|
Trim(line);
|
|
|
|
if (IsEmptyStr(line) == false && StartWith(line, "#") == false)
|
|
{
|
|
IP ip;
|
|
|
|
if (StrToIP6(&ip, line))
|
|
{
|
|
if (IsZeroIp(&ip) == false)
|
|
{
|
|
if (IsIPv6LocalNetworkAddress(&ip) == false)
|
|
{
|
|
Add(ip_list, Clone(&ip, sizeof(IP)));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
Free(line);
|
|
}
|
|
|
|
FreeBuf(txt_buf);
|
|
|
|
ret = QueryFileByIPv6Udp(ip_list, timeout, cancel);
|
|
|
|
for (i = 0; i < LIST_NUM(ip_list); i++)
|
|
{
|
|
IP *ip = LIST_DATA(ip_list, i);
|
|
|
|
Free(ip);
|
|
}
|
|
|
|
ReleaseList(ip_list);
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Request a file by UDP (send the requests to the multiple IP addresses at the same time)
|
|
BUF *QueryFileByIPv6Udp(LIST *ip_list, UINT timeout, bool *cancel)
|
|
{
|
|
bool dummy_flag = false;
|
|
UINT64 start_tick, giveup_tick;
|
|
UINT64 next_send_tick;
|
|
SOCK *s;
|
|
INTERRUPT_MANAGER *interrupt;
|
|
BUF *buf = NULL;
|
|
SOCK_EVENT *se;
|
|
UCHAR *tmp_buf;
|
|
UINT tmp_buf_size = 65535;
|
|
// Validate arguments
|
|
if (cancel == NULL)
|
|
{
|
|
cancel = &dummy_flag;
|
|
}
|
|
if (ip_list == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
s = NewUDP6(0, NULL);
|
|
if (s == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
tmp_buf = Malloc(tmp_buf_size);
|
|
|
|
start_tick = Tick64();
|
|
giveup_tick = start_tick + (UINT64)timeout;
|
|
next_send_tick = 0;
|
|
|
|
interrupt = NewInterruptManager();
|
|
|
|
AddInterrupt(interrupt, giveup_tick);
|
|
|
|
se = NewSockEvent();
|
|
JoinSockToSockEvent(s, se);
|
|
|
|
while (true)
|
|
{
|
|
UINT64 now = Tick64();
|
|
|
|
if (now >= giveup_tick)
|
|
{
|
|
// Time-out
|
|
break;
|
|
}
|
|
|
|
if (*cancel)
|
|
{
|
|
// User canceled
|
|
break;
|
|
}
|
|
|
|
// Receive
|
|
while (true)
|
|
{
|
|
IP src_ip;
|
|
UINT src_port;
|
|
UINT r;
|
|
|
|
r = RecvFrom(s, &src_ip, &src_port, tmp_buf, tmp_buf_size);
|
|
|
|
if (r == SOCK_LATER || r == 0)
|
|
{
|
|
break;
|
|
}
|
|
|
|
if (src_port == UDP_FILE_QUERY_DST_PORT)
|
|
{
|
|
if (r >= 40)
|
|
{
|
|
if (Cmp(tmp_buf, UDP_FILE_QUERY_MAGIC_NUMBER, StrLen(UDP_FILE_QUERY_MAGIC_NUMBER)) == 0)
|
|
{
|
|
// Successful reception
|
|
buf = NewBuf();
|
|
WriteBuf(buf, tmp_buf, r);
|
|
SeekBuf(buf, 0, 0);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (buf != NULL)
|
|
{
|
|
// Successful reception
|
|
break;
|
|
}
|
|
|
|
if (next_send_tick == 0 || (now >= next_send_tick))
|
|
{
|
|
// Transmission
|
|
UINT i;
|
|
for (i = 0; i < LIST_NUM(ip_list); i++)
|
|
{
|
|
IP *ip = LIST_DATA(ip_list, i);
|
|
UCHAR c = 'F';
|
|
|
|
SendTo(s, ip, UDP_FILE_QUERY_DST_PORT, &c, 1);
|
|
}
|
|
|
|
next_send_tick = now + (UINT64)UDP_FILE_QUERY_RETRY_INTERVAL;
|
|
AddInterrupt(interrupt, next_send_tick);
|
|
}
|
|
|
|
WaitSockEvent(se, GetNextIntervalForInterrupt(interrupt));
|
|
}
|
|
|
|
FreeInterruptManager(interrupt);
|
|
|
|
Disconnect(s);
|
|
ReleaseSock(s);
|
|
|
|
ReleaseSockEvent(se);
|
|
|
|
Free(tmp_buf);
|
|
|
|
return buf;
|
|
}
|
|
|
|
// Parse the user name of the NT
|
|
void ParseNtUsername(char *src_username, char *dst_username, UINT dst_username_size, char *dst_domain, UINT dst_domain_size, bool do_not_parse_atmark)
|
|
{
|
|
char tmp_username[MAX_SIZE];
|
|
char tmp_domain[MAX_SIZE];
|
|
TOKEN_LIST *t;
|
|
|
|
if (src_username != dst_username)
|
|
{
|
|
ClearStr(dst_username, dst_username_size);
|
|
}
|
|
|
|
ClearStr(dst_domain, dst_domain_size);
|
|
// Validate arguments
|
|
if (src_username == NULL || dst_username == NULL || dst_domain == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
StrCpy(tmp_username, sizeof(tmp_username), src_username);
|
|
ClearStr(tmp_domain, sizeof(tmp_domain));
|
|
|
|
// Analysis of username@domain.name format
|
|
if (do_not_parse_atmark == false)
|
|
{
|
|
t = ParseTokenWithNullStr(tmp_username, "@");
|
|
if (t->NumTokens >= 1)
|
|
{
|
|
StrCpy(tmp_username, sizeof(tmp_username), t->Token[0]);
|
|
}
|
|
if (t->NumTokens >= 2)
|
|
{
|
|
StrCpy(tmp_domain, sizeof(tmp_domain), t->Token[1]);
|
|
}
|
|
FreeToken(t);
|
|
}
|
|
|
|
// If the username part is in "domain\username" format, split it
|
|
t = ParseTokenWithNullStr(tmp_username, "\\");
|
|
if (t->NumTokens >= 2)
|
|
{
|
|
if (IsEmptyStr(tmp_domain))
|
|
{
|
|
StrCpy(tmp_domain, sizeof(tmp_domain), t->Token[0]);
|
|
}
|
|
|
|
StrCpy(tmp_username, sizeof(tmp_username), t->Token[1]);
|
|
}
|
|
FreeToken(t);
|
|
|
|
StrCpy(dst_username, dst_username_size, tmp_username);
|
|
StrCpy(dst_domain, dst_domain_size, tmp_domain);
|
|
}
|
|
|
|
// The calculation of the optimum MSS value for use in TCP/IP packet in the payload of bulk transfer in R-UDP session
|
|
UINT RUDPCalcBestMssForBulk(RUDP_STACK *r, RUDP_SESSION *se)
|
|
{
|
|
UINT ret;
|
|
// Validate arguments
|
|
if (r == NULL || se == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
ret = MTU_FOR_PPPOE;
|
|
|
|
// IPv4
|
|
if (IsIP6(&se->YourIp) == false)
|
|
{
|
|
ret -= 20;
|
|
}
|
|
else
|
|
{
|
|
ret -= 40;
|
|
}
|
|
|
|
if (r->Protocol == RUDP_PROTOCOL_ICMP)
|
|
{
|
|
// ICMP
|
|
ret -= 8;
|
|
|
|
ret -= SHA1_SIZE;
|
|
}
|
|
else if (r->Protocol == RUDP_PROTOCOL_DNS)
|
|
{
|
|
// UDP
|
|
ret -= 8;
|
|
|
|
// DNS
|
|
ret -= 42;
|
|
}
|
|
|
|
// IV
|
|
ret -= SHA1_SIZE;
|
|
|
|
// Sign
|
|
ret -= SHA1_SIZE;
|
|
|
|
// SEQ_NO
|
|
ret -= sizeof(UINT64);
|
|
|
|
// Padding Max
|
|
ret -= 31;
|
|
|
|
// Ethernet header (target packets of communication)
|
|
ret -= 14;
|
|
|
|
// IPv4 Header (target packet of communication)
|
|
ret -= 20;
|
|
|
|
// TCP header (target packet of communication)
|
|
ret -= 20;
|
|
|
|
// I don't know well, but subtract 24 bytes
|
|
ret -= 24;
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Processing of the reply packet from the NAT-T server
|
|
void RUDPProcess_NatT_Recv(RUDP_STACK *r, UDPPACKET *udp)
|
|
{
|
|
BUF *b;
|
|
PACK *p;
|
|
// Validate arguments
|
|
if (r == NULL || udp == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (udp->Size >= 8)
|
|
{
|
|
char tmp[128];
|
|
|
|
Zero(tmp, sizeof(tmp));
|
|
Copy(tmp, udp->Data, MIN(udp->Size, sizeof(tmp) - 1));
|
|
|
|
if (StartWith(tmp, "IP="))
|
|
{
|
|
IP my_ip;
|
|
UINT my_port;
|
|
|
|
// There was a response to the packet to determine the NAT state
|
|
if (IsEmptyStr(r->NatT_Registered_IPAndPort) == false)
|
|
{
|
|
if (StrCmpi(r->NatT_Registered_IPAndPort, tmp) != 0)
|
|
{
|
|
// Redo getting the token and registration because the NAT state is changed
|
|
ClearStr(r->NatT_Registered_IPAndPort, sizeof(r->NatT_Registered_IPAndPort));
|
|
|
|
r->NatT_GetTokenNextTick = 0;
|
|
r->NatT_GetTokenFailNum = 0;
|
|
r->NatT_Token_Ok = false;
|
|
Zero(r->NatT_Token, sizeof(r->NatT_Token));
|
|
|
|
r->NatT_RegisterNextTick = 0;
|
|
r->NatT_RegisterFailNum = 0;
|
|
r->NatT_Register_Ok = false;
|
|
}
|
|
}
|
|
|
|
if (RUDPParseIPAndPortStr(udp->Data, udp->Size, &my_ip, &my_port))
|
|
{
|
|
if (r->NatTGlobalUdpPort != NULL)
|
|
{
|
|
*r->NatTGlobalUdpPort = my_port;
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
}
|
|
|
|
// Interpret the UDP packet
|
|
b = NewBuf();
|
|
WriteBuf(b, udp->Data, udp->Size);
|
|
SeekBuf(b, 0, 0);
|
|
|
|
p = BufToPack(b);
|
|
|
|
if (p != NULL)
|
|
{
|
|
bool is_ok = PackGetBool(p, "ok");
|
|
UINT64 tran_id = PackGetInt64(p, "tran_id");
|
|
|
|
ExtractAndApplyDynList(p);
|
|
|
|
if (r->ServerMode)
|
|
{
|
|
if (PackCmpStr(p, "opcode", "get_token"))
|
|
{
|
|
// Get the Token
|
|
if (is_ok && (tran_id == r->NatT_TranId))
|
|
{
|
|
char tmp[MAX_SIZE];
|
|
|
|
if (PackGetStr(p, "token", tmp, sizeof(tmp)) && IsEmptyStr(tmp) == false)
|
|
{
|
|
char myip[MAX_SIZE];
|
|
// Acquisition success
|
|
StrCpy(r->NatT_Token, sizeof(r->NatT_Token), tmp);
|
|
r->NatT_Token_Ok = true;
|
|
r->NatT_GetTokenNextTick = r->Now + (UINT64)GenRandInterval(UDP_NAT_T_GET_TOKEN_INTERVAL_2_MIN, UDP_NAT_T_GET_TOKEN_INTERVAL_2_MAX);
|
|
r->NatT_GetTokenFailNum = 0;
|
|
|
|
// Since success to obtain the self global IPv4 address,
|
|
// re-obtain the destination NAT-T host from this IPv4 address
|
|
if (PackGetStr(p, "your_ip", myip, sizeof(myip)))
|
|
{
|
|
IP ip;
|
|
char new_hostname[MAX_SIZE];
|
|
|
|
StrToIP(&ip, myip);
|
|
|
|
SetCurrentGlobalIP(&ip, false);
|
|
|
|
RUDPGetRegisterHostNameByIP(new_hostname,
|
|
sizeof(new_hostname), &ip);
|
|
|
|
Lock(r->Lock);
|
|
{
|
|
if (StrCmpi(r->CurrentRegisterHostname, new_hostname) != 0)
|
|
{
|
|
r->NumChangedHostname++;
|
|
|
|
if (r->NumChangedHostname <= RUDP_NATT_MAX_CONT_CHANGE_HOSTNAME)
|
|
{
|
|
if (r->NumChangedHostnameValueResetTick == 0)
|
|
{
|
|
r->NumChangedHostnameValueResetTick = r->Now + (UINT64)RUDP_NATT_CONT_CHANGE_HOSTNAME_RESET_INTERVAL;
|
|
}
|
|
|
|
// Change the host name
|
|
Debug("CurrentRegisterHostname Changed: New=%s\n", new_hostname);
|
|
StrCpy(r->CurrentRegisterHostname, sizeof(r->CurrentRegisterHostname), new_hostname);
|
|
|
|
Zero(&r->NatT_IP, sizeof(r->NatT_IP));
|
|
//Zero(&r->NatT_IP_Safe, sizeof(r->NatT_IP_Safe));
|
|
|
|
Set(r->HaltEvent);
|
|
}
|
|
else
|
|
{
|
|
if (r->NumChangedHostnameValueResetTick == 0)
|
|
{
|
|
r->NumChangedHostnameValueResetTick = r->Now + (UINT64)RUDP_NATT_CONT_CHANGE_HOSTNAME_RESET_INTERVAL;
|
|
}
|
|
|
|
if (r->Now >= r->NumChangedHostnameValueResetTick)
|
|
{
|
|
r->NumChangedHostname = 0;
|
|
r->NumChangedHostnameValueResetTick = 0;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
r->NumChangedHostname = 0;
|
|
r->NumChangedHostnameValueResetTick = 0;
|
|
}
|
|
}
|
|
Unlock(r->Lock);
|
|
}
|
|
|
|
AddInterrupt(r->Interrupt, r->NatT_GetTokenNextTick);
|
|
}
|
|
}
|
|
}
|
|
else if (PackCmpStr(p, "opcode", "nat_t_register"))
|
|
{
|
|
// NAT-T server registration result
|
|
if (is_ok && (tran_id == r->NatT_TranId))
|
|
{
|
|
UINT my_global_port;
|
|
// Successful registration
|
|
r->NatT_Register_Ok = true;
|
|
r->NatT_RegisterNextTick = r->Now + (UINT64)GenRandInterval(UDP_NAT_T_REGISTER_INTERVAL_MIN, UDP_NAT_T_REGISTER_INTERVAL_MAX);
|
|
r->NatT_RegisterFailNum = 0;
|
|
|
|
Debug("NAT-T Registered.\n");
|
|
|
|
// Save the IP address and port number at the time of registration
|
|
PackGetStr(p, "your_ip_and_port", r->NatT_Registered_IPAndPort, sizeof(r->NatT_Registered_IPAndPort));
|
|
|
|
if (g_source_ip_validation_force_disable == false)
|
|
{
|
|
// Enable the source IP address validation mechanism
|
|
r->NatT_EnableSourceIpValidation = PackGetBool(p, "enable_source_ip_validation");
|
|
|
|
}
|
|
else
|
|
{
|
|
// Force disable the source IP address validation mechanism
|
|
r->NatT_EnableSourceIpValidation = false;
|
|
}
|
|
|
|
// Global port of itself
|
|
my_global_port = PackGetInt(p, "your_port");
|
|
|
|
if (my_global_port != 0)
|
|
{
|
|
if (r->NatTGlobalUdpPort != NULL)
|
|
{
|
|
*r->NatTGlobalUdpPort = my_global_port;
|
|
}
|
|
}
|
|
|
|
AddInterrupt(r->Interrupt, r->NatT_RegisterNextTick);
|
|
}
|
|
}
|
|
else if (PackCmpStr(p, "opcode", "nat_t_connect_relay"))
|
|
{
|
|
// Connection request from the client via the NAT-T server
|
|
if (is_ok && (PackGetInt64(p, "session_key") == r->NatT_SessionKey))
|
|
{
|
|
char client_ip_str[MAX_SIZE];
|
|
UINT client_port;
|
|
IP client_ip;
|
|
|
|
PackGetStr(p, "client_ip", client_ip_str, sizeof(client_ip_str));
|
|
client_port = PackGetInt(p, "client_port");
|
|
StrToIP(&client_ip, client_ip_str);
|
|
|
|
if (IsZeroIp(&client_ip) == false && client_port != 0)
|
|
{
|
|
UCHAR *rand_data;
|
|
UINT rand_size;
|
|
|
|
if (r->NatT_EnableSourceIpValidation)
|
|
{
|
|
RUDPAddIpToValidateList(r, &client_ip);
|
|
}
|
|
|
|
rand_size = Rand32() % 19;
|
|
rand_data = Malloc(rand_size);
|
|
|
|
Rand(rand_data, rand_size);
|
|
|
|
RUDPSendPacket(r, &client_ip, client_port, rand_data, rand_size, 0);
|
|
|
|
Free(rand_data);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
FreePack(p);
|
|
}
|
|
|
|
FreeBuf(b);
|
|
}
|
|
|
|
// Process such as packet transmission for NAT-T server
|
|
void RUDPDo_NatT_Interrupt(RUDP_STACK *r)
|
|
{
|
|
// Validate arguments
|
|
if (r == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (r->ServerMode)
|
|
{
|
|
|
|
if (g_no_rudp_register == false && IsZeroIp(&r->NatT_IP_Safe) == false)
|
|
{
|
|
if (r->NatT_GetTokenNextTick == 0 || r->Now >= r->NatT_GetTokenNextTick)
|
|
{
|
|
// Try to get a token from the NAT-T server periodically
|
|
PACK *p = NewPack();
|
|
BUF *b;
|
|
|
|
PackAddStr(p, "opcode", "get_token");
|
|
PackAddInt64(p, "tran_id", r->NatT_TranId);
|
|
PackAddInt(p, "nat_traversal_version", UDP_NAT_TRAVERSAL_VERSION);
|
|
|
|
b = PackToBuf(p);
|
|
FreePack(p);
|
|
|
|
RUDPSendPacket(r, &r->NatT_IP_Safe, UDP_NAT_T_PORT, b->Buf, b->Size, 0);
|
|
|
|
FreeBuf(b);
|
|
|
|
// Determine the next acquisition time
|
|
r->NatT_GetTokenFailNum++;
|
|
r->NatT_GetTokenNextTick = r->Now + (UINT64)(UDP_NAT_T_GET_TOKEN_INTERVAL_1 * (UINT64)MIN(r->NatT_GetTokenFailNum, UDP_NAT_T_GET_TOKEN_INTERVAL_FAIL_MAX));
|
|
AddInterrupt(r->Interrupt, r->NatT_GetTokenNextTick);
|
|
r->NatT_Token_Ok = false;
|
|
}
|
|
}
|
|
|
|
{
|
|
if (IsZeroIp(&r->NatT_IP_Safe) == false)
|
|
{
|
|
// Normal servers: Send request packets to the NAT-T server
|
|
if (r->NatT_NextNatStatusCheckTick == 0 || r->Now >= r->NatT_NextNatStatusCheckTick)
|
|
{
|
|
UCHAR a = 'A';
|
|
UINT ddns_hash;
|
|
// Check of the NAT state
|
|
RUDPSendPacket(r, &r->NatT_IP_Safe, UDP_NAT_T_PORT, &a, 1, 0);
|
|
|
|
// Execution time of the next
|
|
r->NatT_NextNatStatusCheckTick = r->Now + (UINT64)GenRandInterval(UDP_NAT_T_NAT_STATUS_CHECK_INTERVAL_MIN, UDP_NAT_T_NAT_STATUS_CHECK_INTERVAL_MAX);
|
|
AddInterrupt(r->Interrupt, r->NatT_NextNatStatusCheckTick);
|
|
|
|
// Check whether the DDNS host name changing have not occurred
|
|
ddns_hash = GetCurrentDDnsFqdnHash();
|
|
|
|
if (r->LastDDnsFqdnHash != ddns_hash)
|
|
{
|
|
r->LastDDnsFqdnHash = ddns_hash;
|
|
// Do the Register immediately if there is a change in the DDNS host name
|
|
r->NatT_RegisterNextTick = 0;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (r->NatT_Token_Ok && g_no_rudp_register == false && IsZeroIp(&r->NatT_IP_Safe) == false)
|
|
{
|
|
if (r->NatT_RegisterNextTick == 0 || r->Now >= r->NatT_RegisterNextTick)
|
|
{
|
|
// Try to register itself periodically for NAT-T server
|
|
PACK *p = NewPack();
|
|
BUF *b;
|
|
char private_ip_str[MAX_SIZE];
|
|
char machine_key[MAX_SIZE];
|
|
char machine_name[MAX_SIZE];
|
|
UCHAR hash[SHA1_SIZE];
|
|
char ddns_fqdn[MAX_SIZE];
|
|
|
|
Debug("NAT-T Registering...\n");
|
|
|
|
GetCurrentDDnsFqdn(ddns_fqdn, sizeof(ddns_fqdn));
|
|
|
|
PackAddStr(p, "opcode", "nat_t_register");
|
|
PackAddInt64(p, "tran_id", r->NatT_TranId);
|
|
PackAddStr(p, "token", r->NatT_Token);
|
|
PackAddStr(p, "svc_name", r->SvcName);
|
|
PackAddStr(p, "product_str", "SoftEther OSS");
|
|
PackAddInt64(p, "session_key", r->NatT_SessionKey);
|
|
PackAddInt(p, "nat_traversal_version", UDP_NAT_TRAVERSAL_VERSION);
|
|
|
|
|
|
if (g_natt_low_priority)
|
|
{
|
|
PackAddBool(p, "low_priority", g_natt_low_priority);
|
|
}
|
|
|
|
Zero(private_ip_str, sizeof(private_ip_str));
|
|
if (IsZeroIp(&r->My_Private_IP_Safe) == false)
|
|
{
|
|
IPToStr(private_ip_str, sizeof(private_ip_str), &r->My_Private_IP_Safe);
|
|
PackAddStr(p, "private_ip", private_ip_str);
|
|
}
|
|
|
|
PackAddInt(p, "private_port", r->UdpSock->LocalPort);
|
|
|
|
Zero(hash, sizeof(hash));
|
|
GetCurrentMachineIpProcessHash(hash);
|
|
BinToStr(machine_key, sizeof(machine_key), hash, sizeof(hash));
|
|
PackAddStr(p, "machine_key", machine_key);
|
|
|
|
Zero(machine_name, sizeof(machine_name));
|
|
GetMachineName(machine_name, sizeof(machine_name));
|
|
PackAddStr(p, "host_name", machine_name);
|
|
PackAddStr(p, "ddns_fqdn", ddns_fqdn);
|
|
|
|
b = PackToBuf(p);
|
|
FreePack(p);
|
|
|
|
RUDPSendPacket(r, &r->NatT_IP_Safe, UDP_NAT_T_PORT, b->Buf, b->Size, 0);
|
|
//RUDPSendPacket(r, &r->NatT_IP_Safe, UDP_NAT_T_PORT, "a", 1);
|
|
|
|
FreeBuf(b);
|
|
|
|
// Determine the next acquisition time
|
|
r->NatT_RegisterFailNum++;
|
|
r->NatT_RegisterNextTick = r->Now + (UINT64)UDP_NAT_T_REGISTER_INTERVAL_INITIAL * (UINT64)MIN(r->NatT_RegisterFailNum, UDP_NAT_T_REGISTER_INTERVAL_FAIL_MAX);
|
|
AddInterrupt(r->Interrupt, r->NatT_RegisterNextTick);
|
|
r->NatT_Register_Ok = false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// R-UDP packet reception procedure
|
|
void RUDPRecvProc(RUDP_STACK *r, UDPPACKET *p)
|
|
{
|
|
RUDP_SESSION *se = NULL;
|
|
// Validate arguments
|
|
if (r == NULL || p == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (r->ServerMode)
|
|
{
|
|
if (g_no_rudp_server)
|
|
{
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (r->ServerMode && r->NoNatTRegister == false)
|
|
{
|
|
|
|
if (p->SrcPort == UDP_NAT_T_PORT && CmpIpAddr(&p->SrcIP, &r->NatT_IP_Safe) == 0)
|
|
{
|
|
// There was a response from the NAT-T server
|
|
RUDPProcess_NatT_Recv(r, p);
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (r->ServerMode)
|
|
{
|
|
if (r->ProcRpcRecv != NULL)
|
|
{
|
|
if (r->ProcRpcRecv(r, p))
|
|
{
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (r->ServerMode)
|
|
{
|
|
// Search the session by the end-point information if in the server mode
|
|
se = RUDPSearchSession(r, &p->DstIP, p->DestPort, &p->SrcIP, p->SrcPort);
|
|
}
|
|
else
|
|
{
|
|
// Session should exist only one in the case of client mode
|
|
if (LIST_NUM(r->SessionList) >= 1)
|
|
{
|
|
se = LIST_DATA(r->SessionList, 0);
|
|
}
|
|
else
|
|
{
|
|
se = NULL;
|
|
}
|
|
}
|
|
|
|
if (p->Size < 20)
|
|
{
|
|
// The received packet is too small
|
|
if (r->ServerMode == false)
|
|
{
|
|
if (se != NULL && se->Status == RUDP_SESSION_STATUS_CONNECT_SENT)
|
|
{
|
|
if (CmpIpAddr(&se->YourIp, &p->SrcIP) == 0)
|
|
{
|
|
// If the connection initialization packet which is shorter than 20 bytes
|
|
// has been received from the server side, overwrite the source port number
|
|
// of the packet to the client-side session information (for some NAT)
|
|
se->YourPort = p->SrcPort;
|
|
}
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (se == NULL && r->ServerMode && p->Size >= 40)
|
|
{
|
|
// Corresponding to a sudden change of port number on the client side.
|
|
// The target session is a session which matches the client side IP address
|
|
// and the key and the signature is verified
|
|
UINT i;
|
|
for (i = 0; i < LIST_NUM(r->SessionList); i++)
|
|
{
|
|
RUDP_SESSION *s = LIST_DATA(r->SessionList, i);
|
|
|
|
if (CmpIpAddr(&s->YourIp, &p->SrcIP) == 0)
|
|
{
|
|
if (RUDPCheckSignOfRecvPacket(r, s, p->Data, p->Size))
|
|
{
|
|
// Signature matched
|
|
se = s;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (se == NULL)
|
|
{
|
|
// There is no session
|
|
if (r->ServerMode)
|
|
{
|
|
if (p->Size < 40)
|
|
{
|
|
bool ok = true;
|
|
UCHAR ctoken_hash[SHA1_SIZE];
|
|
|
|
Zero(ctoken_hash, sizeof(ctoken_hash));
|
|
|
|
// Examine the quota of new session creation
|
|
if (LIST_NUM(r->SessionList) >= RUDP_QUOTA_MAX_NUM_SESSIONS)
|
|
{
|
|
// Entire number of sessions exceeds the limit
|
|
ok = false;
|
|
}
|
|
else if (r->NatT_EnableSourceIpValidation && RUDPIsIpInValidateList(r, &p->SrcIP) == false)
|
|
{
|
|
// Invalid source IP address, which is not registered on the validated source IP address list
|
|
ok = false;
|
|
}
|
|
else
|
|
{
|
|
UINT i;
|
|
// Check the number of sessions per IP address
|
|
UINT num = 0;
|
|
|
|
for (i = 0; i < LIST_NUM(r->SessionList); i++)
|
|
{
|
|
RUDP_SESSION *se = LIST_DATA(r->SessionList, i);
|
|
|
|
if (CmpIpAddr(&se->YourIp, &p->SrcIP) == 0)
|
|
{
|
|
num++;
|
|
}
|
|
}
|
|
|
|
if (num >= RUDP_QUOTA_MAX_NUM_SESSIONS_PER_IP)
|
|
{
|
|
// Limit exceeded the number of sessions per IP address
|
|
ok = false;
|
|
}
|
|
}
|
|
|
|
|
|
if (ok)
|
|
{
|
|
char ip_str[64];
|
|
|
|
// Create a session since a new session creation request packet was received
|
|
se = RUDPNewSession(true, &p->DstIP, p->DestPort, &p->SrcIP, p->SrcPort, p->Data);
|
|
se->Status = RUDP_SESSION_STATUS_ESTABLISHED;
|
|
Insert(r->SessionList, se);
|
|
|
|
IPToStr(ip_str, sizeof(ip_str), &p->SrcIP);
|
|
Debug("RUDPNewSession %X %s:%u\n", se, ip_str, p->SrcPort);
|
|
|
|
if (r->Protocol == RUDP_PROTOCOL_ICMP)
|
|
{
|
|
// In case of ICMP, save the ICMP TYPE number to use
|
|
se->Icmp_Type = (p->Type == ICMP_TYPE_INFORMATION_REQUEST ? ICMP_TYPE_INFORMATION_REPLY : p->Type);
|
|
}
|
|
else if (r->Protocol == RUDP_PROTOCOL_DNS)
|
|
{
|
|
// Save the Tran ID to be used if it's a DNS
|
|
se->Dns_TranId = (USHORT)p->Type;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (p->Size < 40)
|
|
{
|
|
if (r->ServerMode)
|
|
{
|
|
if (Cmp(se->Key_Init, p->Data, SHA1_SIZE) == 0)
|
|
{
|
|
// New session creation request packet have received more than once. reply an ACK immediately for second and subsequent
|
|
se->LastSentTick = 0;
|
|
|
|
// Update the endpoint information
|
|
Copy(&se->YourIp, &p->SrcIP, sizeof(IP));
|
|
se->YourPort = p->SrcPort;
|
|
|
|
if (r->Protocol == RUDP_PROTOCOL_ICMP)
|
|
{
|
|
// In case of ICMP, save the ICMP TYPE number to use
|
|
se->Icmp_Type = (p->Type == ICMP_TYPE_INFORMATION_REQUEST ? ICMP_TYPE_INFORMATION_REPLY : p->Type);
|
|
}
|
|
else if (r->Protocol == RUDP_PROTOCOL_DNS)
|
|
{
|
|
// Save the Tran ID to be used if it's a DNS
|
|
se->Dns_TranId = (USHORT)p->Type;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Since the different session creation request packet have been received from the same end point, ignore it
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Process the received packet
|
|
if (RUDPProcessRecvPacket(r, se, p->Data, p->Size) || RUDPProcessBulkRecvPacket(r, se, p->Data, p->Size))
|
|
{
|
|
// Update endpoint information (only the port number)
|
|
//Copy(&se->YourIp, &p->SrcIP, sizeof(IP));
|
|
se->YourPort = p->SrcPort;
|
|
|
|
if (r->Protocol == RUDP_PROTOCOL_ICMP)
|
|
{
|
|
// In case of ICMP, save the ICMP TYPE number to use
|
|
if (r->ServerMode)
|
|
{
|
|
se->Icmp_Type = (p->Type == ICMP_TYPE_INFORMATION_REQUEST ? ICMP_TYPE_INFORMATION_REPLY : p->Type);
|
|
}
|
|
else
|
|
{
|
|
se->Icmp_Type = (p->Type == ICMP_TYPE_INFORMATION_REPLY ? ICMP_TYPE_INFORMATION_REQUEST : p->Type);
|
|
}
|
|
}
|
|
else if (r->Protocol == RUDP_PROTOCOL_DNS)
|
|
{
|
|
if (r->ServerMode)
|
|
{
|
|
// Save the Tran ID to be used if it's a DNS
|
|
se->Dns_TranId = (USHORT)p->Type;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Check whether the specificed IP address is in the validated source IP address list
|
|
bool RUDPIsIpInValidateList(RUDP_STACK *r, IP *ip)
|
|
{
|
|
UINT i;
|
|
UINT64 now = Tick64();
|
|
LIST *o = NULL;
|
|
bool ret = false;
|
|
// Validate arguments
|
|
if (r == NULL || ip == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// Always allow private IP addresses
|
|
if (IsIPPrivate(ip))
|
|
{
|
|
return true;
|
|
}
|
|
|
|
if (IsIPAddressInSameLocalNetwork(ip))
|
|
{
|
|
return true;
|
|
}
|
|
|
|
for (i = 0; i < LIST_NUM(r->NatT_SourceIpList); i++)
|
|
{
|
|
RUDP_SOURCE_IP *s = (RUDP_SOURCE_IP *)LIST_DATA(r->NatT_SourceIpList, i);
|
|
|
|
if (s->ExpiresTick <= now)
|
|
{
|
|
if (o == NULL)
|
|
{
|
|
o = NewListFast(NULL);
|
|
}
|
|
|
|
Add(o, s);
|
|
}
|
|
}
|
|
|
|
if (o != NULL)
|
|
{
|
|
for (i = 0; i < LIST_NUM(o); i++)
|
|
{
|
|
RUDP_SOURCE_IP *s = (RUDP_SOURCE_IP *)LIST_DATA(o, i);
|
|
|
|
Delete(r->NatT_SourceIpList, s);
|
|
|
|
Free(s);
|
|
}
|
|
|
|
ReleaseList(o);
|
|
}
|
|
|
|
for (i = 0; i < LIST_NUM(r->NatT_SourceIpList); i++)
|
|
{
|
|
RUDP_SOURCE_IP *s = (RUDP_SOURCE_IP *)LIST_DATA(r->NatT_SourceIpList, i);
|
|
|
|
if (CmpIpAddr(&s->ClientIP, ip) == 0)
|
|
{
|
|
ret = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
Debug("RUDP: NAT-T: Validate IP: %r, ret=%u (current list len = %u)\n", ip, ret, LIST_NUM(r->NatT_SourceIpList));
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Add an IP address to the validated source IP address list
|
|
void RUDPAddIpToValidateList(RUDP_STACK *r, IP *ip)
|
|
{
|
|
UINT i;
|
|
RUDP_SOURCE_IP *sip;
|
|
UINT64 now = Tick64();
|
|
LIST *o = NULL;
|
|
// Validate arguments
|
|
if (r == NULL || ip == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (LIST_NUM(r->NatT_SourceIpList) >= RUDP_MAX_VALIDATED_SOURCE_IP_ADDRESSES)
|
|
{
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < LIST_NUM(r->NatT_SourceIpList); i++)
|
|
{
|
|
RUDP_SOURCE_IP *s = (RUDP_SOURCE_IP *)LIST_DATA(r->NatT_SourceIpList, i);
|
|
|
|
if (s->ExpiresTick <= now)
|
|
{
|
|
if (o == NULL)
|
|
{
|
|
o = NewListFast(NULL);
|
|
}
|
|
|
|
Add(o, s);
|
|
}
|
|
}
|
|
|
|
if (o != NULL)
|
|
{
|
|
for (i = 0; i < LIST_NUM(o); i++)
|
|
{
|
|
RUDP_SOURCE_IP *s = (RUDP_SOURCE_IP *)LIST_DATA(o, i);
|
|
|
|
Delete(r->NatT_SourceIpList, s);
|
|
|
|
Free(s);
|
|
}
|
|
|
|
ReleaseList(o);
|
|
}
|
|
|
|
sip = NULL;
|
|
|
|
for (i = 0; i < LIST_NUM(r->NatT_SourceIpList); i++)
|
|
{
|
|
RUDP_SOURCE_IP *s = (RUDP_SOURCE_IP *)LIST_DATA(r->NatT_SourceIpList, i);
|
|
|
|
if (CmpIpAddr(&s->ClientIP, ip) == 0)
|
|
{
|
|
sip = s;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (sip == NULL)
|
|
{
|
|
sip = ZeroMalloc(sizeof(RUDP_SOURCE_IP));
|
|
|
|
Copy(&sip->ClientIP, ip, sizeof(IP));
|
|
|
|
Add(r->NatT_SourceIpList, sip);
|
|
}
|
|
|
|
sip->ExpiresTick = now + (UINT64)RUDP_VALIDATED_SOURCE_IP_ADDRESS_EXPIRES;
|
|
|
|
Debug("RUDP: NAT-T: Src IP added: %r (current list len = %u)\n", ip, LIST_NUM(r->NatT_SourceIpList));
|
|
}
|
|
|
|
// R-UDP interrupt processing procedure
|
|
void RUDPInterruptProc(RUDP_STACK *r)
|
|
{
|
|
UINT i;
|
|
LIST *o;
|
|
// Validate arguments
|
|
if (r == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
// Packet transmission and other process for NAT-T server
|
|
if (r->NoNatTRegister == false)
|
|
{
|
|
RUDPDo_NatT_Interrupt(r);
|
|
}
|
|
|
|
if (r->ServerMode == false)
|
|
{
|
|
if (r->ClientInitiated == false)
|
|
{
|
|
bool client_target_inited = false;
|
|
Lock(r->Lock);
|
|
{
|
|
client_target_inited = r->TargetIpAndPortInited;
|
|
}
|
|
Unlock(r->Lock);
|
|
|
|
if (client_target_inited)
|
|
{
|
|
// Start a connection when there is the end point information of the destination server to connect as a client
|
|
RUDP_SESSION *se;
|
|
UCHAR init_key[SHA1_SIZE];
|
|
char ip_str[128];
|
|
UINT64 ui;
|
|
|
|
Rand(init_key, SHA1_SIZE);
|
|
|
|
se = RUDPNewSession(false, &r->UdpSock->LocalIP, r->UdpSock->LocalPort,
|
|
&r->TargetIp, r->TargetPort, init_key);
|
|
|
|
IPToStr(ip_str, sizeof(ip_str), &r->TargetIp);
|
|
Debug("RUDPNewSession %X %s:%u\n", se, ip_str, r->TargetPort);
|
|
|
|
Insert(r->SessionList, se);
|
|
|
|
ui = Endian64(se->Magic_Disconnect);
|
|
WriteFifo(se->SendFifo, &ui, sizeof(UINT64));
|
|
|
|
r->ClientInitiated = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Process for all the sessions
|
|
for (i = 0; i < LIST_NUM(r->SessionList); i++)
|
|
{
|
|
RUDP_SESSION *se = LIST_DATA(r->SessionList, i);
|
|
|
|
if (r->Halt)
|
|
{
|
|
// Disconnect all the sessions if the R-UDP stack stopped
|
|
RUDPDisconnectSession(r, se, false);
|
|
}
|
|
|
|
if (se->FlushBulkSendTube)
|
|
{
|
|
if (se->TcpSock != NULL && se->TcpSock->BulkSendTube != NULL)
|
|
{
|
|
TubeFlush(se->TcpSock->BulkSendTube);
|
|
}
|
|
|
|
se->FlushBulkSendTube = false;
|
|
}
|
|
|
|
if (se->Status == RUDP_SESSION_STATUS_ESTABLISHED)
|
|
{
|
|
// Process for all of the sessions which is established a connection
|
|
UINT j;
|
|
|
|
if (r->Now >= (se->LatestRecvMyTick + (UINT64)RUDP_TIMEOUT))
|
|
{
|
|
// Disconnect the session because the fully communication failure is detected for a while
|
|
Debug("R-UDP Session %X Timed Out.\n", se);
|
|
|
|
RUDPDisconnectSession(r, se, false);
|
|
}
|
|
|
|
// If there are received segments, read to the part that has arrived in succession
|
|
if (FifoSize(se->RecvFifo) <= RUDP_MAX_FIFO_SIZE)
|
|
{
|
|
LIST *o;
|
|
UINT64 current_seq_no;
|
|
|
|
o = NULL;
|
|
current_seq_no = se->LastRecvCompleteSeqNo;
|
|
for (j = 0; j < LIST_NUM(se->RecvSegmentList); j++)
|
|
{
|
|
RUDP_SEGMENT *s;
|
|
|
|
current_seq_no++;
|
|
|
|
s = LIST_DATA(se->RecvSegmentList, j);
|
|
|
|
if (s->SeqNo == current_seq_no)
|
|
{
|
|
#ifdef RUDP_DETAIL_LOG
|
|
Debug("%X s->SeqNo = %I64u, current_seq_no = %I64u\n", se, s->SeqNo, current_seq_no);
|
|
#endif // RUDP_DETAIL_LOG
|
|
|
|
if (s->Size == sizeof(se->Magic_KeepAliveRequest) && Cmp(s->Data, se->Magic_KeepAliveRequest, sizeof(se->Magic_KeepAliveRequest)) == 0)
|
|
{
|
|
// Receive the KeepAlive Request
|
|
#ifdef RUDP_DETAIL_LOG
|
|
Debug("Recv KeepAlive Request\n");
|
|
#endif // RUDP_DETAIL_LOG
|
|
|
|
// Send a KeepAlive Response if the transmisson queue is empty
|
|
if (LIST_NUM(se->SendSegmentList) == 0)
|
|
{
|
|
#ifdef RUDP_DETAIL_LOG
|
|
Debug("Send KeepAlive Response\n");
|
|
#endif // RUDP_DETAIL_LOG
|
|
|
|
RUDPSendSegment(r, se, se->Magic_KeepAliveResponse, sizeof(se->Magic_KeepAliveResponse));
|
|
}
|
|
}
|
|
else if (s->Size == sizeof(se->Magic_KeepAliveResponse) && Cmp(s->Data, se->Magic_KeepAliveResponse, sizeof(se->Magic_KeepAliveResponse)) == 0)
|
|
{
|
|
// Receive the KeepAlive Response
|
|
#ifdef RUDP_DETAIL_LOG
|
|
Debug("Recv KeepAlive Response\n");
|
|
#endif // RUDP_DETAIL_LOG
|
|
}
|
|
else
|
|
{
|
|
// Write to the receive FIFO
|
|
WriteFifo(se->RecvFifo, s->Data, s->Size);
|
|
}
|
|
r->TotalLogicalReceived += s->Size;
|
|
|
|
// Advance the SEQ NO which has been received completely
|
|
se->LastRecvCompleteSeqNo = s->SeqNo;
|
|
|
|
// Add to the Delete list
|
|
if (o == NULL)
|
|
{
|
|
o = NewListFast(NULL);
|
|
}
|
|
Add(o, s);
|
|
}
|
|
else
|
|
{
|
|
// Continuous reading is interrupted
|
|
#ifdef RUDP_DETAIL_LOG
|
|
Debug("%X s->SeqNo = %I64u, current_seq_no = %I64u\n", se, s->SeqNo, current_seq_no);
|
|
WHERE;
|
|
#endif // RUDP_DETAIL_LOG
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Delete the segment which has been received completely
|
|
if (o != NULL)
|
|
{
|
|
for (j = 0; j < LIST_NUM(o); j++)
|
|
{
|
|
RUDP_SEGMENT *s = LIST_DATA(o, j);
|
|
|
|
Delete(se->RecvSegmentList, s);
|
|
Free(s);
|
|
}
|
|
ReleaseList(o);
|
|
}
|
|
}
|
|
|
|
if (r->ServerMode && se->Magic_Disconnect == 0)
|
|
{
|
|
if (FifoSize(se->RecvFifo) >= sizeof(UINT64))
|
|
{
|
|
UINT64 ui;
|
|
|
|
if (ReadFifo(se->RecvFifo, &ui, sizeof(UINT64)) == sizeof(UINT64))
|
|
{
|
|
ui = Endian64(ui);
|
|
|
|
if ((ui & 0xffffffff00000000ULL) != 0ULL)
|
|
{
|
|
se->Magic_Disconnect = ui;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// If the data remains in FIFO, write it to the TCP socket as possible
|
|
if (r->ServerMode == false || se->Magic_Disconnect != 0)
|
|
{
|
|
while (FifoSize(se->RecvFifo) >= 1)
|
|
{
|
|
UINT ret;
|
|
|
|
RUDPInitSock(r, se);
|
|
|
|
ret = Send(se->TcpSock, FifoPtr(se->RecvFifo), FifoSize(se->RecvFifo), false);
|
|
|
|
if (ret == SOCK_LATER)
|
|
{
|
|
// Can not write any more
|
|
break;
|
|
}
|
|
else if (ret == 0)
|
|
{
|
|
// Disconnected
|
|
Disconnect(se->TcpSock);
|
|
RUDPDisconnectSession(r, se, false);
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
// Writing success
|
|
ReadFifo(se->RecvFifo, NULL, ret);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Read the data as much as possible from the TCP socket and store it to FIFO
|
|
if (se->TcpSock != NULL)
|
|
{
|
|
SetNoNeedToRead(se->TcpSock);
|
|
|
|
while (FifoSize(se->SendFifo) <= RUDP_MAX_FIFO_SIZE)
|
|
{
|
|
UINT ret = Recv(se->TcpSock, r->TmpBuf, sizeof(r->TmpBuf), false);
|
|
|
|
if (ret == SOCK_LATER)
|
|
{
|
|
// Can not read any more
|
|
break;
|
|
}
|
|
else if (ret == 0)
|
|
{
|
|
// Disconnected
|
|
Disconnect(se->TcpSock);
|
|
RUDPDisconnectSession(r, se, false);
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
// Reading success
|
|
WriteFifo(se->SendFifo, r->TmpBuf, ret);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Attempt to send a divided segment
|
|
while (true)
|
|
{
|
|
UINT64 seq_no_min, seq_no_max;
|
|
|
|
seq_no_min = RUDPGetCurrentSendingMinSeqNo(se);
|
|
seq_no_max = RUDPGetCurrentSendingMaxSeqNo(se);
|
|
|
|
#ifdef RUDP_DETAIL_LOG
|
|
Debug("min=%I64u max=%I64u\n", seq_no_min, seq_no_max);
|
|
#endif // RUDP_DETAIL_LOG
|
|
|
|
if (seq_no_min == 0 || ((seq_no_min + RUDP_MAX_NUM_ACK - 1) >= se->NextSendSeqNo))
|
|
{
|
|
// Because there is a room to send a new segment, send a segment
|
|
UINT size = MIN(FifoSize(se->SendFifo), RUDP_MAX_SEGMENT_SIZE);
|
|
|
|
if (size == 0)
|
|
{
|
|
// There is no more data to send in FIFO
|
|
break;
|
|
}
|
|
|
|
// Transmission
|
|
RUDPSendSegment(r, se, FifoPtr(se->SendFifo), size);
|
|
|
|
r->TotalLogicalSent += size;
|
|
|
|
// Advance the FIFO
|
|
ReadFifo(se->SendFifo, NULL, size);
|
|
}
|
|
else
|
|
{
|
|
// There is no room to send a new segment further
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (se->DisconnectFlag == false)
|
|
{
|
|
UINT64 seq_no_min;
|
|
|
|
if (se->LastSentTick == 0 || (r->Now >= (se->LastSentTick + (UINT64)se->NextKeepAliveInterval)))
|
|
{
|
|
if (LIST_NUM(se->SendSegmentList) == 0)
|
|
{
|
|
// Send a Keep-Alive if no data was sent for a while and the transmission queue is empty
|
|
RUDPSendSegment(r, se, se->Magic_KeepAliveRequest, sizeof(se->Magic_KeepAliveRequest));
|
|
|
|
#ifdef RUDP_DETAIL_LOG
|
|
Debug("Sent KeepAlive Request\n");
|
|
#endif // RUDP_DETAIL_LOG
|
|
}
|
|
|
|
se->NextKeepAliveInterval = RUDP_KEEPALIVE_INTERVAL_MIN + (Rand32() % (RUDP_KEEPALIVE_INTERVAL_MAX - RUDP_KEEPALIVE_INTERVAL_MIN));
|
|
|
|
AddInterrupt(r->Interrupt, r->Now + se->NextKeepAliveInterval);
|
|
}
|
|
|
|
seq_no_min = RUDPGetCurrentSendingMinSeqNo(se);
|
|
for (j = 0; j < LIST_NUM(se->SendSegmentList); j++)
|
|
{
|
|
RUDP_SEGMENT *s = LIST_DATA(se->SendSegmentList, j);
|
|
|
|
if (s->SeqNo <= (seq_no_min + RUDP_MAX_NUM_ACK - 1))
|
|
{
|
|
if (s->NextSendTick == 0 || r->Now >= s->NextSendTick)
|
|
{
|
|
UINT next_interval;
|
|
// Transmits a segment which has not been sent even once yet, or whose retransmission time has arrived
|
|
RUDPSendSegmentNow(r, se, s->SeqNo, s->Data, s->Size);
|
|
|
|
if (se->CurrentRtt != 0)
|
|
{
|
|
next_interval = (se->CurrentRtt * 120 / 100) * Power(2, MIN(s->NumSent, 10));
|
|
}
|
|
else
|
|
{
|
|
next_interval = RUDP_RESEND_TIMER * Power(2, MIN(s->NumSent, 10));
|
|
}
|
|
|
|
next_interval = MIN(next_interval, RUDP_RESEND_TIMER_MAX);
|
|
|
|
s->NumSent++;
|
|
|
|
s->NextSendTick = r->Now + next_interval;
|
|
|
|
AddInterrupt(r->Interrupt, s->NextSendTick);
|
|
}
|
|
}
|
|
}
|
|
|
|
while (LIST_NUM(se->ReplyAckList) >= 1)
|
|
{
|
|
// If there are ACKs which is not responded yet in the list, send all of them
|
|
RUDPSendSegmentNow(r, se, se->NextSendSeqNo, NULL, 0);
|
|
}
|
|
|
|
// Send all if there are bulk transfer data
|
|
if (se->TcpSock != NULL)
|
|
{
|
|
SOCK *s = se->TcpSock;
|
|
|
|
if (s->BulkRecvTube != NULL)
|
|
{
|
|
TUBE *t = s->BulkRecvTube;
|
|
|
|
while (true)
|
|
{
|
|
TUBEDATA *d = TubeRecvAsync(t);
|
|
|
|
if (d == NULL)
|
|
{
|
|
break;
|
|
}
|
|
|
|
if (d->Header != NULL && d->HeaderSize == sizeof(TCP_PAIR_HEADER))
|
|
{
|
|
TCP_PAIR_HEADER *h = d->Header;
|
|
|
|
if (h->EnableHMac)
|
|
{
|
|
se->UseHMac = true;
|
|
}
|
|
}
|
|
|
|
RUDPBulkSend(r, se, d->Data, d->DataSize);
|
|
|
|
FreeTubeData(d);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (r->ServerMode == false)
|
|
{
|
|
if (se->Status == RUDP_SESSION_STATUS_CONNECT_SENT)
|
|
{
|
|
// Send a connection request periodically from the client side
|
|
if (se->LastSentTick == 0 || ((se->LastSentTick + (UINT64)RUDP_RESEND_TIMER) <= r->Now))
|
|
{
|
|
UCHAR tmp[40];
|
|
UINT size_of_padding = 19;
|
|
UINT size = size_of_padding + SHA1_SIZE;
|
|
|
|
se->LastSentTick = r->Now;
|
|
|
|
Copy(tmp, se->Key_Init, SHA1_SIZE);
|
|
Rand(tmp + SHA1_SIZE, size_of_padding);
|
|
|
|
if (r->Protocol == RUDP_PROTOCOL_ICMP)
|
|
{
|
|
// ICMP packet
|
|
UCHAR *rand_data;
|
|
UINT rand_size;
|
|
|
|
rand_size = Rand32() % 64 + 64;
|
|
rand_data = Malloc(rand_size);
|
|
Rand(rand_data, rand_size);
|
|
|
|
RUDPSendPacket(r, &se->YourIp, se->YourPort, rand_data, rand_size, ICMP_TYPE_ECHO_REQUEST);
|
|
Free(rand_data);
|
|
|
|
se->Client_Icmp_NextSendEchoRequest = r->Now + GenRandInterval(RUDP_CLIENT_ECHO_REQUEST_SEND_INTERVAL_MIN, RUDP_CLIENT_ECHO_REQUEST_SEND_INTERVAL_MAX);
|
|
AddInterrupt(r->Interrupt, se->Client_Icmp_NextSendEchoRequest);
|
|
|
|
// Try in both INFORMATION_REQUEST and ECHO_RESPONSE from the client side first
|
|
RUDPSendPacket(r, &se->YourIp, se->YourPort, tmp, size, ICMP_TYPE_ECHO_RESPONSE);
|
|
RUDPSendPacket(r, &se->YourIp, se->YourPort, tmp, size, ICMP_TYPE_INFORMATION_REQUEST);
|
|
}
|
|
else if (r->Protocol == RUDP_PROTOCOL_DNS)
|
|
{
|
|
// DNS
|
|
RUDPSendPacket(r, &se->YourIp, se->YourPort, tmp, size, se->Dns_TranId);
|
|
}
|
|
else
|
|
{
|
|
// Normal UDP
|
|
RUDPSendPacket(r, &se->YourIp, se->YourPort, tmp, size, 0);
|
|
}
|
|
|
|
AddInterrupt(r->Interrupt, r->Now + (UINT64)RUDP_RESEND_TIMER);
|
|
}
|
|
}
|
|
|
|
if (r->Protocol == RUDP_PROTOCOL_ICMP)
|
|
{
|
|
if (se->Client_Icmp_NextSendEchoRequest == 0 || (r->Now >= se->Client_Icmp_NextSendEchoRequest))
|
|
{
|
|
// Periodic ICMP Echo transmission from the client side when R-UDP used in ICMP mode
|
|
// (To maintain the mapping table of the NAT)
|
|
UCHAR *rand_data;
|
|
UINT rand_size;
|
|
|
|
rand_size = Rand32() % 64 + 64;
|
|
rand_data = Malloc(rand_size);
|
|
Rand(rand_data, rand_size);
|
|
|
|
RUDPSendPacket(r, &se->YourIp, se->YourPort, rand_data, rand_size, ICMP_TYPE_ECHO_REQUEST);
|
|
Free(rand_data);
|
|
|
|
se->Client_Icmp_NextSendEchoRequest = r->Now + GenRandInterval(RUDP_CLIENT_ECHO_REQUEST_SEND_INTERVAL_MIN, RUDP_CLIENT_ECHO_REQUEST_SEND_INTERVAL_MAX);
|
|
AddInterrupt(r->Interrupt, se->Client_Icmp_NextSendEchoRequest);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Release the disconnected sessions
|
|
o = NULL;
|
|
for (i = 0; i < LIST_NUM(r->SessionList); i++)
|
|
{
|
|
RUDP_SESSION *se = LIST_DATA(r->SessionList, i);
|
|
|
|
if (se->DisconnectFlag)
|
|
{
|
|
if (o == NULL)
|
|
{
|
|
o = NewListFast(NULL);
|
|
}
|
|
|
|
Add(o, se);
|
|
}
|
|
}
|
|
if (o != NULL)
|
|
{
|
|
for (i = 0; i < LIST_NUM(o); i++)
|
|
{
|
|
RUDP_SESSION *se = LIST_DATA(o, i);
|
|
|
|
Delete(r->SessionList, se);
|
|
|
|
RUDPFreeSession(se);
|
|
}
|
|
|
|
ReleaseList(o);
|
|
}
|
|
}
|
|
|
|
// Do the bulk send
|
|
void RUDPBulkSend(RUDP_STACK *r, RUDP_SESSION *se, void *data, UINT data_size)
|
|
{
|
|
UCHAR *buf;
|
|
UINT i, icmp_type, buf_size, padding_size;
|
|
icmp_type = 0;
|
|
// Validate arguments
|
|
if (r == NULL || se == NULL || (data == NULL && data_size != 0))
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (se->BulkSendKey->Size == RUDP_BULK_KEY_SIZE_V2)
|
|
{
|
|
UCHAR *tmp, iv[RUDP_BULK_IV_SIZE_V2];
|
|
UINT size;
|
|
CIPHER *c;
|
|
|
|
padding_size = Rand32() % 31 + 1;
|
|
|
|
size = sizeof(UINT64) + data_size + padding_size;
|
|
|
|
// Packet: IV + Encrypted(SEQ_NO + Data + padding) + MAC
|
|
buf_size = RUDP_BULK_IV_SIZE_V2 + sizeof(UINT64) + data_size + padding_size + RUDP_BULK_MAC_SIZE_V2;
|
|
buf = Malloc(buf_size);
|
|
|
|
// IV
|
|
Copy(iv, se->BulkNextIv_V2, RUDP_BULK_IV_SIZE_V2);
|
|
Copy(buf, iv, RUDP_BULK_IV_SIZE_V2);
|
|
|
|
// SEQ NO
|
|
WRITE_UINT64(buf + RUDP_BULK_IV_SIZE_V2, se->BulkNextSeqNo);
|
|
se->BulkNextSeqNo++;
|
|
|
|
// Data
|
|
Copy(buf + RUDP_BULK_IV_SIZE_V2 + sizeof(UINT64), data, data_size);
|
|
|
|
// Padding
|
|
for (i = 0; i < padding_size; i++)
|
|
{
|
|
buf[RUDP_BULK_IV_SIZE_V2 + sizeof(UINT64) + data_size + i] = (UCHAR)padding_size;
|
|
}
|
|
|
|
size = sizeof(UINT64) + data_size + padding_size;
|
|
tmp = buf + RUDP_BULK_IV_SIZE_V2;
|
|
|
|
// Encryption
|
|
c = NewCipher("ChaCha20-Poly1305");
|
|
SetCipherKey(c, se->BulkSendKey->Data, true);
|
|
CipherProcessAead(c, iv, tmp + size, RUDP_BULK_MAC_SIZE_V2, tmp, tmp, size - RUDP_BULK_MAC_SIZE_V2, NULL, 0);
|
|
FreeCipher(c);
|
|
|
|
// Next IV
|
|
Copy(se->BulkNextIv_V2, buf + sizeof(UINT64) + data_size + padding_size, RUDP_BULK_IV_SIZE_V2);
|
|
}
|
|
else
|
|
{
|
|
UCHAR crypt_key_src[SHA1_SIZE * 2];
|
|
UCHAR crypt_key[SHA1_SIZE];
|
|
UCHAR sign[SHA1_SIZE];
|
|
UCHAR iv[SHA1_SIZE];
|
|
CRYPT *c;
|
|
|
|
padding_size = Rand32() % 31 + 1;
|
|
|
|
buf_size = SHA1_SIZE + SHA1_SIZE + sizeof(UINT64) + data_size + padding_size;
|
|
buf = Malloc(buf_size);
|
|
|
|
// SEQ NO
|
|
WRITE_UINT64(buf + SHA1_SIZE + SHA1_SIZE, se->BulkNextSeqNo);
|
|
se->BulkNextSeqNo++;
|
|
|
|
// Data
|
|
Copy(buf + SHA1_SIZE + SHA1_SIZE + sizeof(UINT64), data, data_size);
|
|
|
|
// Padding
|
|
for (i = 0; i < padding_size; i++)
|
|
{
|
|
buf[SHA1_SIZE + SHA1_SIZE + sizeof(UINT64) + data_size + i] = (UCHAR)padding_size;
|
|
}
|
|
|
|
// Encryption
|
|
Copy(iv, se->BulkNextIv, SHA1_SIZE);
|
|
Copy(crypt_key_src + 0, se->BulkSendKey->Data, SHA1_SIZE);
|
|
Copy(crypt_key_src + SHA1_SIZE, iv, SHA1_SIZE);
|
|
Sha1(crypt_key, crypt_key_src, SHA1_SIZE * 2);
|
|
c = NewCrypt(crypt_key, sizeof(crypt_key));
|
|
Encrypt(c, buf + SHA1_SIZE + SHA1_SIZE, buf + SHA1_SIZE + SHA1_SIZE, sizeof(UINT64) + data_size + padding_size);
|
|
FreeCrypt(c);
|
|
|
|
// IV
|
|
Copy(buf + SHA1_SIZE, iv, SHA1_SIZE);
|
|
|
|
// Sign
|
|
if (se->UseHMac == false)
|
|
{
|
|
Copy(buf + 0, se->BulkSendKey->Data, SHA1_SIZE);
|
|
Sha1(sign, buf, SHA1_SIZE + SHA1_SIZE + sizeof(UINT64) + data_size + padding_size);
|
|
Copy(buf + 0, sign, SHA1_SIZE);
|
|
}
|
|
else
|
|
{
|
|
HMacSha1(buf + 0, se->BulkSendKey->Data, SHA1_SIZE, buf + SHA1_SIZE, SHA1_SIZE + sizeof(UINT64) + data_size + padding_size);
|
|
}
|
|
|
|
// Next IV
|
|
Copy(se->BulkNextIv, buf + buf_size - SHA1_SIZE, SHA1_SIZE);
|
|
}
|
|
|
|
if (r->Protocol == RUDP_PROTOCOL_ICMP)
|
|
{
|
|
icmp_type = se->Icmp_Type;
|
|
}
|
|
else if (r->Protocol == RUDP_PROTOCOL_DNS)
|
|
{
|
|
icmp_type = se->Dns_TranId;
|
|
}
|
|
|
|
RUDPSendPacket(r, &se->YourIp, se->YourPort, buf, buf_size, icmp_type);
|
|
|
|
Free(buf);
|
|
}
|
|
|
|
// Start a socket for R-UDP Listening
|
|
SOCK *ListenRUDP(char *svc_name, RUDP_STACK_INTERRUPTS_PROC *proc_interrupts, RUDP_STACK_RPC_RECV_PROC *proc_rpc_recv, void *param, UINT port, bool no_natt_register, bool over_dns_mode)
|
|
{
|
|
return ListenRUDPEx(svc_name, proc_interrupts, proc_rpc_recv, param, port, no_natt_register, over_dns_mode, NULL, 0, NULL);
|
|
}
|
|
SOCK *ListenRUDPEx(char *svc_name, RUDP_STACK_INTERRUPTS_PROC *proc_interrupts, RUDP_STACK_RPC_RECV_PROC *proc_rpc_recv, void *param, UINT port, bool no_natt_register, bool over_dns_mode,
|
|
volatile UINT *natt_global_udp_port, UCHAR rand_port_id, IP *listen_ip)
|
|
{
|
|
SOCK *s;
|
|
RUDP_STACK *r;
|
|
|
|
// Creating a R-UDP stack
|
|
r = NewRUDPServer(svc_name, proc_interrupts, proc_rpc_recv, param, port, no_natt_register, over_dns_mode, natt_global_udp_port, rand_port_id, listen_ip);
|
|
if (r == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
s = NewSock();
|
|
|
|
s->Type = SOCK_RUDP_LISTEN;
|
|
s->ListenMode = true;
|
|
s->Connected = true;
|
|
|
|
s->LocalPort = r->UdpSock->LocalPort;
|
|
|
|
s->R_UDP_Stack = r;
|
|
|
|
return s;
|
|
}
|
|
|
|
// Accept on the R-UDP socket
|
|
SOCK *AcceptRUDP(SOCK *s)
|
|
{
|
|
// Validate arguments
|
|
if (s == NULL || s->Type != SOCK_RUDP_LISTEN || s->ListenMode == false)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
while (true)
|
|
{
|
|
RUDP_STACK *r = s->R_UDP_Stack;
|
|
SOCK *ret;
|
|
|
|
if (s->Disconnecting || s->CancelAccept)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
ret = GetNextWithLock(r->NewSockQueue);
|
|
|
|
if (ret != NULL)
|
|
{
|
|
switch (r->Protocol)
|
|
{
|
|
case RUDP_PROTOCOL_UDP:
|
|
StrCpy(ret->UnderlayProtocol, sizeof(ret->UnderlayProtocol), SOCK_UNDERLAY_NAT_T);
|
|
AddProtocolDetailsStr(ret->ProtocolDetails, sizeof(ret->ProtocolDetails), "RUDP/UDP");
|
|
break;
|
|
|
|
case RUDP_PROTOCOL_DNS:
|
|
StrCpy(ret->UnderlayProtocol, sizeof(ret->UnderlayProtocol), SOCK_UNDERLAY_DNS);
|
|
AddProtocolDetailsStr(ret->ProtocolDetails, sizeof(ret->ProtocolDetails), "RUDP/DNS");
|
|
break;
|
|
|
|
case RUDP_PROTOCOL_ICMP:
|
|
StrCpy(ret->UnderlayProtocol, sizeof(ret->UnderlayProtocol), SOCK_UNDERLAY_ICMP);
|
|
AddProtocolDetailsStr(ret->ProtocolDetails, sizeof(ret->ProtocolDetails), "RUDP/ICMP");
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
Wait(r->NewSockConnectEvent, INFINITE);
|
|
}
|
|
}
|
|
|
|
// Verify the signature of the received packet
|
|
bool RUDPCheckSignOfRecvPacket(RUDP_STACK *r, RUDP_SESSION *se, void *recv_data, UINT recv_size)
|
|
{
|
|
UCHAR sign[SHA1_SIZE];
|
|
UCHAR sign2[SHA1_SIZE];
|
|
UCHAR *p;
|
|
UINT size;
|
|
// Validate arguments
|
|
if (r == NULL || se == NULL || recv_data == NULL || recv_size == 0)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
p = (UCHAR *)recv_data;
|
|
size = recv_size;
|
|
if (size < SHA1_SIZE)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// Verification the signature (segment packet)
|
|
Copy(sign, p, SHA1_SIZE);
|
|
Copy(p, se->Key_Recv, SHA1_SIZE);
|
|
Sha1(sign2, p, recv_size);
|
|
|
|
if (r->Protocol == RUDP_PROTOCOL_DNS || r->Protocol == RUDP_PROTOCOL_ICMP)
|
|
{
|
|
XorData(sign2, sign2, r->SvcNameHash, SHA1_SIZE);
|
|
}
|
|
|
|
Copy(p, sign, SHA1_SIZE);
|
|
if (Cmp(sign, sign2, SHA1_SIZE) == 0)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
if (se->BulkRecvKey == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// Verification signature (bulk packet)
|
|
if (se->BulkRecvKey->Size == RUDP_BULK_KEY_SIZE_V2)
|
|
{
|
|
UCHAR *iv = p;
|
|
CIPHER *c;
|
|
|
|
// Packet: IV + Encrypted(SEQ_NO + Data + padding) + MAC
|
|
// IV
|
|
if (size < RUDP_BULK_IV_SIZE_V2)
|
|
{
|
|
return false;
|
|
}
|
|
iv = p;
|
|
p += RUDP_BULK_IV_SIZE_V2;
|
|
size -= RUDP_BULK_IV_SIZE_V2;
|
|
|
|
// Decrypt
|
|
if (size < (RUDP_BULK_MAC_SIZE_V2 + 1))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
c = NewCipher("ChaCha20-Poly1305");
|
|
SetCipherKey(c, se->BulkRecvKey->Data, false);
|
|
size = CipherProcessAead(c, iv, p + size, RUDP_BULK_MAC_SIZE_V2, r->TmpBuf, p, size - RUDP_BULK_MAC_SIZE_V2, NULL, 0);
|
|
FreeCipher(c);
|
|
|
|
if (size == 0)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
if (se->UseHMac == false)
|
|
{
|
|
Copy(sign, p, SHA1_SIZE);
|
|
Copy(p, se->BulkRecvKey->Data, SHA1_SIZE);
|
|
Sha1(sign2, p, recv_size);
|
|
Copy(p, sign, SHA1_SIZE);
|
|
|
|
if (Cmp(sign, sign2, SHA1_SIZE) == 0)
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
|
|
HMacSha1(sign2, se->BulkRecvKey->Data, SHA1_SIZE, p + SHA1_SIZE, size - SHA1_SIZE);
|
|
if (Cmp(p, sign2, SHA1_SIZE) == 0)
|
|
{
|
|
se->UseHMac = true;
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
// Process the received packet (bulk)
|
|
bool RUDPProcessBulkRecvPacket(RUDP_STACK *r, RUDP_SESSION *se, void *recv_data, UINT recv_size)
|
|
{
|
|
UCHAR *p;
|
|
UCHAR *iv;
|
|
UINT size;
|
|
UCHAR padlen;
|
|
UINT64 seq_no;
|
|
UCHAR *payload;
|
|
UINT payload_size;
|
|
// Validate arguments
|
|
if (r == NULL || se == NULL || recv_data == NULL || recv_size == 0 || se->BulkRecvKey == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
p = (UCHAR *)recv_data;
|
|
size = recv_size;
|
|
if (size < SHA1_SIZE)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (se->BulkRecvKey->Size == RUDP_BULK_KEY_SIZE_V2)
|
|
{
|
|
UINT ret;
|
|
CIPHER *c;
|
|
|
|
// Packet: IV + Encrypted(SEQ_NO + Data + padding) + MAC
|
|
// IV
|
|
if (size < RUDP_BULK_IV_SIZE_V2)
|
|
{
|
|
WHERE;
|
|
return false;
|
|
}
|
|
iv = p;
|
|
p += RUDP_BULK_IV_SIZE_V2;
|
|
size -= RUDP_BULK_IV_SIZE_V2;
|
|
|
|
// Decrypt
|
|
if (size < (RUDP_BULK_MAC_SIZE_V2 + 1))
|
|
{
|
|
WHERE;
|
|
return false;
|
|
}
|
|
|
|
c = NewCipher("ChaCha20-Poly1305");
|
|
SetCipherKey(c, se->BulkRecvKey->Data, false);
|
|
ret = CipherProcessAead(c, iv, p + size, RUDP_BULK_MAC_SIZE_V2, p, p, size - RUDP_BULK_MAC_SIZE_V2, NULL, 0);
|
|
FreeCipher(c);
|
|
|
|
if (ret == 0)
|
|
{
|
|
WHERE;
|
|
return false;
|
|
}
|
|
|
|
size -= RUDP_BULK_MAC_SIZE_V2;
|
|
|
|
// padlen
|
|
padlen = p[size - 1];
|
|
if (padlen == 0)
|
|
{
|
|
WHERE;
|
|
return false;
|
|
}
|
|
if (size < padlen)
|
|
{
|
|
WHERE;
|
|
return false;
|
|
}
|
|
size -= padlen;
|
|
}
|
|
else
|
|
{
|
|
CRYPT *c;
|
|
UCHAR sign[SHA1_SIZE], sign2[SHA1_SIZE];
|
|
UCHAR key[SHA1_SIZE], keygen[SHA1_SIZE * 2];
|
|
|
|
// Validate the signature
|
|
if (se->UseHMac == false)
|
|
{
|
|
Copy(sign, p, SHA1_SIZE);
|
|
Copy(p, se->BulkRecvKey->Data, SHA1_SIZE);
|
|
Sha1(sign2, p, recv_size);
|
|
Copy(p, sign, SHA1_SIZE);
|
|
|
|
if (Cmp(sign, sign2, SHA1_SIZE) != 0)
|
|
{
|
|
HMacSha1(sign2, se->BulkRecvKey->Data, SHA1_SIZE, p + SHA1_SIZE, recv_size - SHA1_SIZE);
|
|
|
|
if (Cmp(p, sign2, SHA1_SIZE) != 0)
|
|
{
|
|
return false;
|
|
}
|
|
else
|
|
{
|
|
se->UseHMac = true;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
HMacSha1(sign2, se->BulkRecvKey->Data, SHA1_SIZE, p + SHA1_SIZE, recv_size - SHA1_SIZE);
|
|
|
|
if (Cmp(p, sign2, SHA1_SIZE) != 0)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
p += SHA1_SIZE;
|
|
size -= SHA1_SIZE;
|
|
|
|
// IV
|
|
if (size < SHA1_SIZE)
|
|
{
|
|
return false;
|
|
}
|
|
iv = p;
|
|
p += SHA1_SIZE;
|
|
size -= SHA1_SIZE;
|
|
|
|
// Decrypt
|
|
if (size < 1)
|
|
{
|
|
return false;
|
|
}
|
|
Copy(keygen + 0, se->BulkRecvKey->Data, SHA1_SIZE);
|
|
Copy(keygen + SHA1_SIZE, iv, SHA1_SIZE);
|
|
Sha1(key, keygen, sizeof(keygen));
|
|
|
|
c = NewCrypt(key, sizeof(key));
|
|
Encrypt(c, p, p, size);
|
|
FreeCrypt(c);
|
|
|
|
// padlen
|
|
padlen = p[size - 1];
|
|
if (padlen == 0)
|
|
{
|
|
return false;
|
|
}
|
|
if (size < padlen)
|
|
{
|
|
return false;
|
|
}
|
|
size -= padlen;
|
|
}
|
|
|
|
// SEQ NO
|
|
seq_no = READ_UINT64(p);
|
|
p += sizeof(UINT64);
|
|
size -= sizeof(UINT64);
|
|
|
|
if (seq_no == 0 || seq_no >= (0xF000000000000000ULL))
|
|
{
|
|
// Sequence number is invalid
|
|
return false;
|
|
}
|
|
|
|
if ((seq_no + RUDP_BULK_SEQ_NO_RANGE) < se->BulkRecvSeqNoMax)
|
|
{
|
|
// Sequence number is too small
|
|
return false;
|
|
}
|
|
|
|
se->LastRecvTick = r->Now;
|
|
|
|
payload = p;
|
|
payload_size = size;
|
|
|
|
se->BulkRecvSeqNoMax = MAX(seq_no, se->BulkRecvSeqNoMax);
|
|
|
|
// Send the received bulk packet to the Tube of the socket
|
|
RUDPInitSock(r, se);
|
|
|
|
if (se->TcpSock != NULL)
|
|
{
|
|
SOCK *s = se->TcpSock;
|
|
TUBE *t = s->BulkSendTube;
|
|
|
|
if (t != NULL)
|
|
{
|
|
TubeSendEx2(t, payload, payload_size, NULL, true, RUDP_BULK_MAX_RECV_PKTS_IN_QUEUE);
|
|
|
|
se->FlushBulkSendTube = true;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
// Process the received packet (segment)
|
|
bool RUDPProcessRecvPacket(RUDP_STACK *r, RUDP_SESSION *se, void *recv_data, UINT recv_size)
|
|
{
|
|
UCHAR sign[SHA1_SIZE];
|
|
UCHAR sign2[SHA1_SIZE];
|
|
UCHAR *p;
|
|
UCHAR *iv;
|
|
UINT size;
|
|
UCHAR keygen[SHA1_SIZE * 2];
|
|
UCHAR key[SHA1_SIZE];
|
|
CRYPT *c;
|
|
UCHAR padlen;
|
|
UINT num_ack;
|
|
UINT i;
|
|
UINT64 seq_no;
|
|
UCHAR *payload;
|
|
UINT payload_size;
|
|
UINT64 max_ack;
|
|
UINT64 my_tick, your_tick;
|
|
// Validate arguments
|
|
if (r == NULL || se == NULL || recv_data == NULL || recv_size == 0)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
p = (UCHAR *)recv_data;
|
|
size = recv_size;
|
|
if (size < SHA1_SIZE)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// Validate the signature
|
|
Copy(sign, p, SHA1_SIZE);
|
|
Copy(p, se->Key_Recv, SHA1_SIZE);
|
|
Sha1(sign2, p, recv_size);
|
|
Copy(p, sign, SHA1_SIZE);
|
|
|
|
if (r->Protocol == RUDP_PROTOCOL_DNS || r->Protocol == RUDP_PROTOCOL_ICMP)
|
|
{
|
|
XorData(sign2, sign2, r->SvcNameHash, SHA1_SIZE);
|
|
}
|
|
|
|
if (Cmp(sign, sign2, SHA1_SIZE) != 0)
|
|
{
|
|
//WHERE;
|
|
return false;
|
|
}
|
|
p += SHA1_SIZE;
|
|
size -= SHA1_SIZE;
|
|
|
|
// IV
|
|
if (size < SHA1_SIZE)
|
|
{
|
|
return false;
|
|
}
|
|
iv = p;
|
|
p += SHA1_SIZE;
|
|
size -= SHA1_SIZE;
|
|
|
|
// Decrypt
|
|
if (size < 1)
|
|
{
|
|
return false;
|
|
}
|
|
Copy(keygen + 0, iv, SHA1_SIZE);
|
|
Copy(keygen + SHA1_SIZE, se->Key_Recv, SHA1_SIZE);
|
|
Sha1(key, keygen, sizeof(keygen));
|
|
|
|
c = NewCrypt(key, sizeof(key));
|
|
Encrypt(c, p, p, size);
|
|
FreeCrypt(c);
|
|
|
|
// padlen
|
|
padlen = p[size - 1];
|
|
if (padlen == 0)
|
|
{
|
|
return false;
|
|
}
|
|
if (size < padlen)
|
|
{
|
|
return false;
|
|
}
|
|
size -= padlen;
|
|
|
|
// MyTick
|
|
if (size < sizeof(UINT64))
|
|
{
|
|
return false;
|
|
}
|
|
my_tick = READ_UINT64(p);
|
|
p += sizeof(UINT64);
|
|
size -= sizeof(UINT64);
|
|
|
|
// YourTick
|
|
if (size < sizeof(UINT64))
|
|
{
|
|
return false;
|
|
}
|
|
your_tick = READ_UINT64(p);
|
|
p += sizeof(UINT64);
|
|
size -= sizeof(UINT64);
|
|
|
|
if (your_tick > r->Now)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// MAX_ACK
|
|
if (size < sizeof(UINT64))
|
|
{
|
|
return false;
|
|
}
|
|
max_ack = READ_UINT64(p);
|
|
p += sizeof(UINT64);
|
|
size -= sizeof(UINT64);
|
|
|
|
// num_ack
|
|
if (size < sizeof(UINT))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
num_ack = READ_UINT(p);
|
|
if (num_ack > RUDP_MAX_NUM_ACK)
|
|
{
|
|
return false;
|
|
}
|
|
p += sizeof(UINT);
|
|
size -= sizeof(UINT);
|
|
|
|
// ACKs
|
|
if (size < (sizeof(UINT64) * num_ack + sizeof(UINT64)))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (max_ack >= 1)
|
|
{
|
|
RUDPProcessAck2(r, se, max_ack);
|
|
}
|
|
|
|
for (i = 0; i < num_ack; i++)
|
|
{
|
|
UINT64 seq = READ_UINT64(p);
|
|
|
|
RUDPProcessAck(r, se, seq);
|
|
|
|
p += sizeof(UINT64);
|
|
size -= sizeof(UINT64);
|
|
}
|
|
|
|
// Processing of the Tick (Calculation of RTT)
|
|
if (my_tick >= 2)
|
|
{
|
|
my_tick--;
|
|
}
|
|
se->YourTick = MAX(se->YourTick, my_tick);
|
|
|
|
se->LatestRecvMyTick = MAX(se->LatestRecvMyTick, your_tick);
|
|
|
|
if (se->LatestRecvMyTick2 != se->LatestRecvMyTick)
|
|
{
|
|
se->LatestRecvMyTick2 = se->LatestRecvMyTick;
|
|
se->CurrentRtt = (UINT)(r->Now - se->LatestRecvMyTick);
|
|
|
|
#ifdef RUDP_DETAIL_LOG
|
|
Debug("CurrentRTT = %u\n", se->CurrentRtt);
|
|
#endif // RUDP_DETAIL_LOG
|
|
}
|
|
|
|
// SEQ NO
|
|
seq_no = READ_UINT64(p);
|
|
p += sizeof(UINT64);
|
|
size -= sizeof(UINT64);
|
|
|
|
if (seq_no == 0)
|
|
{
|
|
// Sequence number of 0 is a invalid packet
|
|
return true;
|
|
}
|
|
|
|
if (seq_no == se->Magic_Disconnect)
|
|
{
|
|
// Disconnected from opponent
|
|
RUDPDisconnectSession(r, se, true);
|
|
return true;
|
|
}
|
|
|
|
// Update the last reception date and time
|
|
se->LastRecvTick = r->Now;
|
|
|
|
payload = p;
|
|
payload_size = size;
|
|
|
|
#ifdef RUDP_DETAIL_LOG
|
|
Debug("RUDP %X Segment Recv: %I64u (num_ack=%u, size=%u)\n", se, seq_no, num_ack, size);
|
|
#endif // RUDP_DETAIL_LOG
|
|
|
|
if (payload_size >= 1 && payload_size <= RUDP_MAX_SEGMENT_SIZE)
|
|
{
|
|
// Received one or more bytes of data
|
|
|
|
#ifdef RUDP_DETAIL_LOG
|
|
Debug("Recv Size: %X %I64u %u %u\n", se, seq_no, payload_size, recv_size);
|
|
#endif // RUDP_DETAIL_LOG
|
|
|
|
RUDPProcessRecvPayload(r, se, seq_no, payload, payload_size);
|
|
}
|
|
|
|
if (r->ServerMode == false)
|
|
{
|
|
if (se->Status == RUDP_SESSION_STATUS_CONNECT_SENT)
|
|
{
|
|
// Shift to the established state if the connection is not yet in established state
|
|
se->Status = RUDP_SESSION_STATUS_ESTABLISHED;
|
|
|
|
RUDPInitSock(r, se);
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
// Disconnect the session
|
|
void RUDPDisconnectSession(RUDP_STACK *r, RUDP_SESSION *se, bool disconnected_by_you)
|
|
{
|
|
// Validate arguments
|
|
if (r == NULL || se == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (se->DisconnectFlag == false)
|
|
{
|
|
UINT i;
|
|
|
|
se->DisconnectFlag = true;
|
|
se->DisconnectedByYou = disconnected_by_you;
|
|
|
|
Debug("R-UDP Session %X Disconnected. by you flag: %u\n", se, disconnected_by_you);
|
|
|
|
if (se->TcpSock != NULL)
|
|
{
|
|
// Disconnect a TCP socket
|
|
Disconnect(se->TcpSock);
|
|
ReleaseSock(se->TcpSock);
|
|
|
|
se->TcpSock = NULL;
|
|
}
|
|
|
|
// Send 5 disconnect signals serially if to disconnect from here
|
|
if (disconnected_by_you == false)
|
|
{
|
|
for (i = 0; i < 5; i++)
|
|
{
|
|
RUDPSendSegmentNow(r, se, se->Magic_Disconnect, NULL, 0);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Initialize the TCP socket for the session
|
|
void RUDPInitSock(RUDP_STACK *r, RUDP_SESSION *se)
|
|
{
|
|
SOCK *s1, *s2;
|
|
UINT mss;
|
|
// Validate arguments
|
|
if (r == NULL || se == NULL || se->DisconnectFlag)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (se->TcpSock != NULL)
|
|
{
|
|
// It has already been created
|
|
return;
|
|
}
|
|
|
|
// Creating a TCP socket pair
|
|
if (NewTcpPair(&s1, &s2) == false)
|
|
{
|
|
// Failed to create. Disconnect the session
|
|
RUDPDisconnectSession(r, se, false);
|
|
return;
|
|
}
|
|
|
|
// Calculate the optimal MSS
|
|
mss = RUDPCalcBestMssForBulk(r, se);
|
|
|
|
if (r->ServerMode)
|
|
{
|
|
// Server mode
|
|
se->TcpSock = s2;
|
|
|
|
JoinSockToSockEvent(s2, r->SockEvent);
|
|
|
|
// Update the end point information of the socket s1
|
|
ZeroIP4(&s1->LocalIP);
|
|
s1->LocalPort = se->MyPort;
|
|
Copy(&s1->RemoteIP, &se->YourIp, sizeof(IP));
|
|
s1->RemotePort = se->YourPort;
|
|
if (IsLocalHostIP(&s1->RemoteIP) == false)
|
|
{
|
|
AddIpClient(&s1->RemoteIP);
|
|
s1->IpClientAdded = true;
|
|
}
|
|
s1->IsRUDPSocket = true;
|
|
|
|
s1->BulkSendKey = se->BulkSendKey;
|
|
s1->BulkRecvKey = se->BulkRecvKey;
|
|
|
|
AddRef(s1->BulkSendKey->Ref);
|
|
AddRef(s1->BulkRecvKey->Ref);
|
|
|
|
s1->RUDP_OptimizedMss = mss;
|
|
|
|
// Enqueue the newly created socket, and set the event
|
|
InsertQueueWithLock(r->NewSockQueue, s1);
|
|
Set(r->NewSockConnectEvent);
|
|
}
|
|
else
|
|
{
|
|
// Client mode
|
|
Lock(r->Lock);
|
|
{
|
|
if (r->TargetConnectedSock == NULL && r->DoNotSetTargetConnectedSock == false)
|
|
{
|
|
// Update the end point information of the socket s2
|
|
Copy(&s2->LocalIP, &r->UdpSock->LocalIP, sizeof(IP));
|
|
s2->LocalPort = se->MyPort;
|
|
Copy(&s2->RemoteIP, &se->YourIp, sizeof(IP));
|
|
s2->RemotePort = se->YourPort;
|
|
if (IsLocalHostIP(&s2->RemoteIP) == false)
|
|
{
|
|
AddIpClient(&s2->RemoteIP);
|
|
s2->IpClientAdded = true;
|
|
}
|
|
s2->IsRUDPSocket = true;
|
|
|
|
s2->BulkSendKey = se->BulkSendKey;
|
|
s2->BulkRecvKey = se->BulkRecvKey;
|
|
|
|
AddRef(s2->BulkSendKey->Ref);
|
|
AddRef(s2->BulkRecvKey->Ref);
|
|
|
|
s2->RUDP_OptimizedMss = mss;
|
|
|
|
// Register the socket to the RUDP stack
|
|
r->TargetConnectedSock = s2;
|
|
s2->R_UDP_Stack = r;
|
|
se->TcpSock = s1;
|
|
|
|
JoinSockToSockEvent(s1, r->SockEvent);
|
|
|
|
// Set the event to be set when the connection is successful
|
|
Set(r->TargetConnectedEvent);
|
|
}
|
|
else
|
|
{
|
|
Disconnect(s1);
|
|
Disconnect(s2);
|
|
ReleaseSock(s1);
|
|
ReleaseSock(s2);
|
|
}
|
|
}
|
|
Unlock(r->Lock);
|
|
}
|
|
}
|
|
|
|
// Process the received payload
|
|
void RUDPProcessRecvPayload(RUDP_STACK *r, RUDP_SESSION *se, UINT64 seq, void *payload_data, UINT payload_size)
|
|
{
|
|
RUDP_SEGMENT t;
|
|
RUDP_SEGMENT *s;
|
|
// Validate arguments
|
|
if (r == NULL || se == NULL || seq == 0 || payload_data == NULL || payload_size == 0 || payload_size > RUDP_MAX_SEGMENT_SIZE)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (seq > (se->LastRecvCompleteSeqNo + RUDP_MAX_NUM_ACK))
|
|
{
|
|
// Ignore the segment which have sequence number beyond the window size, and also not to reply an ACK
|
|
return;
|
|
}
|
|
|
|
if (seq <= se->LastRecvCompleteSeqNo)
|
|
{
|
|
// Do not receive the segment which have the sequence number that has been already received. However, reply an ACK for it
|
|
AddInt64Distinct(se->ReplyAckList, seq);
|
|
return;
|
|
}
|
|
|
|
Zero(&t, sizeof(t));
|
|
t.SeqNo = seq;
|
|
|
|
s = Search(se->RecvSegmentList, &t);
|
|
if (s != NULL)
|
|
{
|
|
// Do not receive the segment which have the sequence number that has been already received. However, reply an ACK for it
|
|
AddInt64Distinct(se->ReplyAckList, seq);
|
|
return;
|
|
}
|
|
|
|
// Received a segment of the new sequence number
|
|
s = ZeroMalloc(sizeof(RUDP_SEGMENT));
|
|
s->SeqNo = seq;
|
|
Copy(s->Data, payload_data, payload_size);
|
|
s->Size = payload_size;
|
|
Insert(se->RecvSegmentList, s);
|
|
|
|
// Reply an ACK
|
|
AddInt64Distinct(se->ReplyAckList, seq);
|
|
|
|
// Create a socket for session if it have not been created yet
|
|
//RUDPInitSock(r, se);
|
|
}
|
|
|
|
// Process the incoming ACK
|
|
void RUDPProcessAck(RUDP_STACK *r, RUDP_SESSION *se, UINT64 seq)
|
|
{
|
|
RUDP_SEGMENT t;
|
|
RUDP_SEGMENT *s;
|
|
// Validate arguments
|
|
if (r == NULL || se == NULL || seq == 0)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Zero(&t, sizeof(t));
|
|
t.SeqNo = seq;
|
|
|
|
s = Search(se->SendSegmentList, &t);
|
|
if (s == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Delete(se->SendSegmentList, s);
|
|
Free(s);
|
|
}
|
|
|
|
// Remove all segments which are preceding max_seq as already delivered
|
|
void RUDPProcessAck2(RUDP_STACK *r, RUDP_SESSION *se, UINT64 max_seq)
|
|
{
|
|
LIST *o;
|
|
UINT i;
|
|
// Validate arguments
|
|
if (r == NULL || se == NULL || max_seq == 0)
|
|
{
|
|
return;
|
|
}
|
|
|
|
o = NULL;
|
|
|
|
for (i = 0; i < LIST_NUM(se->SendSegmentList); i++)
|
|
{
|
|
RUDP_SEGMENT *s = LIST_DATA(se->SendSegmentList, i);
|
|
|
|
if (s->SeqNo <= max_seq)
|
|
{
|
|
if (o == NULL)
|
|
{
|
|
o = NewListFast(NULL);
|
|
}
|
|
|
|
Add(o, s);
|
|
}
|
|
}
|
|
|
|
if (o != NULL)
|
|
{
|
|
for (i = 0; i < LIST_NUM(o); i++)
|
|
{
|
|
RUDP_SEGMENT *s = LIST_DATA(o, i);
|
|
|
|
Delete(se->SendSegmentList, s);
|
|
|
|
Free(s);
|
|
}
|
|
|
|
ReleaseList(o);
|
|
}
|
|
}
|
|
|
|
// Get the minimum sequence number which is trying to send
|
|
UINT64 RUDPGetCurrentSendingMinSeqNo(RUDP_SESSION *se)
|
|
{
|
|
RUDP_SEGMENT *s;
|
|
// Validate arguments
|
|
if (se == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (LIST_NUM(se->SendSegmentList) == 0)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
s = LIST_DATA(se->SendSegmentList, 0);
|
|
|
|
return s->SeqNo;
|
|
}
|
|
|
|
// Get the maximum sequence number which is trying to send
|
|
UINT64 RUDPGetCurrentSendingMaxSeqNo(RUDP_SESSION *se)
|
|
{
|
|
RUDP_SEGMENT *s;
|
|
// Validate arguments
|
|
if (se == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (LIST_NUM(se->SendSegmentList) == 0)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
s = LIST_DATA(se->SendSegmentList, (LIST_NUM(se->SendSegmentList) - 1));
|
|
|
|
return s->SeqNo;
|
|
}
|
|
|
|
// R-UDP segment transmission
|
|
void RUDPSendSegmentNow(RUDP_STACK *r, RUDP_SESSION *se, UINT64 seq_no, void *data, UINT size)
|
|
{
|
|
UCHAR dst[RUDP_MAX_PACKET_SIZE];
|
|
UCHAR *p;
|
|
UCHAR *iv;
|
|
LIST *o = NULL;
|
|
UINT i;
|
|
UCHAR padlen;
|
|
UINT current_size;
|
|
UCHAR sign[SHA1_SIZE];
|
|
UCHAR key[SHA1_SIZE];
|
|
UCHAR keygen[SHA1_SIZE * 2];
|
|
CRYPT *c;
|
|
UINT next_iv_pos;
|
|
UINT num_ack;
|
|
UINT icmp_type = 0;
|
|
// Validate arguments
|
|
if (r == NULL || se == NULL || (size != 0 && data == NULL) || (size > RUDP_MAX_SEGMENT_SIZE))
|
|
{
|
|
return;
|
|
}
|
|
|
|
Zero(dst, sizeof(dst));
|
|
p = dst;
|
|
|
|
// SIGN
|
|
Copy(p, se->Key_Send, SHA1_SIZE);
|
|
p += SHA1_SIZE;
|
|
|
|
// IV
|
|
iv = p;
|
|
Copy(iv, se->NextIv, SHA1_SIZE);
|
|
p += SHA1_SIZE;
|
|
|
|
for (i = 0; i < MIN(LIST_NUM(se->ReplyAckList), RUDP_MAX_NUM_ACK); i++)
|
|
{
|
|
UINT64 *seq = LIST_DATA(se->ReplyAckList, i);
|
|
|
|
if (o == NULL)
|
|
{
|
|
o = NewListFast(NULL);
|
|
}
|
|
|
|
Add(o, seq);
|
|
}
|
|
|
|
// MyTick
|
|
WRITE_UINT64(p, r->Now);
|
|
p += sizeof(UINT64);
|
|
|
|
// YourTick
|
|
WRITE_UINT64(p, se->YourTick);
|
|
p += sizeof(UINT64);
|
|
|
|
// MAX_ACK
|
|
WRITE_UINT64(p, se->LastRecvCompleteSeqNo);
|
|
p += sizeof(UINT64);
|
|
|
|
// NUM_ACK
|
|
num_ack = LIST_NUM(o);
|
|
WRITE_UINT(p, num_ack);
|
|
p += sizeof(UINT);
|
|
|
|
if (o != NULL)
|
|
{
|
|
// ACK body
|
|
for (i = 0; i < LIST_NUM(o); i++)
|
|
{
|
|
UINT64 *seq = LIST_DATA(o, i);
|
|
|
|
WRITE_UINT64(p, *seq);
|
|
p += sizeof(UINT64);
|
|
|
|
Delete(se->ReplyAckList, seq);
|
|
|
|
Free(seq);
|
|
}
|
|
ReleaseList(o);
|
|
}
|
|
|
|
// SEQ
|
|
WRITE_UINT64(p, seq_no);
|
|
p += sizeof(UINT64);
|
|
|
|
// data
|
|
Copy(p, data, size);
|
|
p += size;
|
|
|
|
// padding
|
|
padlen = Rand8();
|
|
padlen = MAX(padlen, 1);
|
|
|
|
for (i = 0; i < padlen; i++)
|
|
{
|
|
*p = padlen;
|
|
p++;
|
|
}
|
|
|
|
current_size = (UINT)(p - dst);
|
|
|
|
// Encrypt
|
|
Copy(keygen + 0, iv, SHA1_SIZE);
|
|
Copy(keygen + SHA1_SIZE, se->Key_Send, SHA1_SIZE);
|
|
Sha1(key, keygen, sizeof(keygen));
|
|
c = NewCrypt(key, sizeof(key));
|
|
Encrypt(c, dst + SHA1_SIZE * 2, dst + SHA1_SIZE * 2, current_size - (SHA1_SIZE * 2));
|
|
FreeCrypt(c);
|
|
|
|
// Sign
|
|
Sha1(sign, dst, current_size);
|
|
if (r->Protocol == RUDP_PROTOCOL_DNS || r->Protocol == RUDP_PROTOCOL_ICMP)
|
|
{
|
|
XorData(sign, sign, r->SvcNameHash, SHA1_SIZE);
|
|
}
|
|
Copy(dst, sign, SHA1_SIZE);
|
|
|
|
if (r->Protocol == RUDP_PROTOCOL_ICMP)
|
|
{
|
|
icmp_type = se->Icmp_Type;
|
|
}
|
|
else if (r->Protocol == RUDP_PROTOCOL_DNS)
|
|
{
|
|
icmp_type = se->Dns_TranId;
|
|
}
|
|
RUDPSendPacket(r, &se->YourIp, se->YourPort, dst, current_size, icmp_type);
|
|
|
|
if (size >= 1)
|
|
{
|
|
se->LastSentTick = r->Now;
|
|
}
|
|
|
|
// Next IV
|
|
next_iv_pos = Rand32() % (current_size - SHA1_SIZE);
|
|
Copy(se->NextIv, dst + next_iv_pos, SHA1_SIZE);
|
|
|
|
#ifdef RUDP_DETAIL_LOG
|
|
Debug("RUDP %X Segment Sent: %I64u (num_ack=%u, size=%u)\n", se, seq_no, num_ack, size);
|
|
#endif // RUDP_DETAIL_LOG
|
|
|
|
if (size >= 1)
|
|
{
|
|
#ifdef RUDP_DETAIL_LOG
|
|
Debug("Send Size: %X %I64u %u %u\n", se, seq_no, size, current_size);
|
|
#endif // RUDP_DETAIL_LOG
|
|
}
|
|
}
|
|
|
|
// R-UDP segment transmission (only put into the queue)
|
|
void RUDPSendSegment(RUDP_STACK *r, RUDP_SESSION *se, void *data, UINT size)
|
|
{
|
|
RUDP_SEGMENT *s;
|
|
// Validate arguments
|
|
if (r == NULL || se == NULL || (size != 0 && data == NULL) || (size > RUDP_MAX_SEGMENT_SIZE))
|
|
{
|
|
return;
|
|
}
|
|
|
|
s = ZeroMalloc(sizeof(RUDP_SEGMENT));
|
|
|
|
Copy(s->Data, data, size);
|
|
s->Size = size;
|
|
|
|
s->SeqNo = se->NextSendSeqNo++;
|
|
|
|
Insert(se->SendSegmentList, s);
|
|
}
|
|
|
|
// Search for a session
|
|
RUDP_SESSION *RUDPSearchSession(RUDP_STACK *r, IP *my_ip, UINT my_port, IP *your_ip, UINT your_port)
|
|
{
|
|
RUDP_SESSION t;
|
|
RUDP_SESSION *se;
|
|
// Validate arguments
|
|
if (r == NULL || my_ip == NULL || your_ip == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
Copy(&t.MyIp, my_ip, sizeof(IP));
|
|
t.MyPort = my_port;
|
|
Copy(&t.YourIp, your_ip, sizeof(IP));
|
|
t.YourPort = your_port;
|
|
|
|
se = Search(r->SessionList, &t);
|
|
|
|
return se;
|
|
}
|
|
|
|
// Release of the session
|
|
void RUDPFreeSession(RUDP_SESSION *se)
|
|
{
|
|
UINT i;
|
|
// Validate arguments
|
|
if (se == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Debug("RUDPFreeSession %X\n", se);
|
|
|
|
for (i = 0; i < LIST_NUM(se->SendSegmentList); i++)
|
|
{
|
|
RUDP_SEGMENT *s = LIST_DATA(se->SendSegmentList, i);
|
|
|
|
Free(s);
|
|
}
|
|
|
|
ReleaseList(se->SendSegmentList);
|
|
|
|
for (i = 0; i < LIST_NUM(se->RecvSegmentList); i++)
|
|
{
|
|
RUDP_SEGMENT *s = LIST_DATA(se->RecvSegmentList, i);
|
|
|
|
Free(s);
|
|
}
|
|
|
|
ReleaseList(se->RecvSegmentList);
|
|
|
|
if (se->TcpSock != NULL)
|
|
{
|
|
Disconnect(se->TcpSock);
|
|
ReleaseSock(se->TcpSock);
|
|
}
|
|
|
|
ReleaseInt64List(se->ReplyAckList);
|
|
|
|
ReleaseFifo(se->RecvFifo);
|
|
ReleaseFifo(se->SendFifo);
|
|
|
|
ReleaseSharedBuffer(se->BulkSendKey);
|
|
ReleaseSharedBuffer(se->BulkRecvKey);
|
|
|
|
Free(se);
|
|
}
|
|
|
|
// Create a new session
|
|
RUDP_SESSION *RUDPNewSession(bool server_mode, IP *my_ip, UINT my_port, IP *your_ip, UINT your_port, UCHAR *init_key)
|
|
{
|
|
RUDP_SESSION *se;
|
|
UCHAR key1[SHA1_SIZE];
|
|
UCHAR key2[SHA1_SIZE];
|
|
UCHAR bulk_send_key[RUDP_BULK_KEY_SIZE_MAX];
|
|
UCHAR bulk_recv_key[RUDP_BULK_KEY_SIZE_MAX];
|
|
BUF *b;
|
|
|
|
se = ZeroMalloc(sizeof(RUDP_SESSION));
|
|
|
|
Copy(&se->MyIp, my_ip, sizeof(IP));
|
|
se->MyPort = my_port;
|
|
|
|
Copy(&se->YourIp, your_ip, sizeof(IP));
|
|
se->YourPort = your_port;
|
|
|
|
Copy(se->Key_Init, init_key, SHA1_SIZE);
|
|
se->LastSentTick = 0;
|
|
se->LastRecvTick = Tick64();
|
|
se->LatestRecvMyTick = Tick64();
|
|
|
|
se->NextSendSeqNo = 1;
|
|
|
|
se->ServerMode = server_mode;
|
|
|
|
se->SendSegmentList = NewList(RUDPCompareSegmentList);
|
|
se->RecvSegmentList = NewList(RUDPCompareSegmentList);
|
|
|
|
// Generate the two keys
|
|
b = NewBuf();
|
|
WriteBuf(b, init_key, SHA1_SIZE);
|
|
WriteBufStr(b, "zurukko");
|
|
Sha1(key1, b->Buf, b->Size);
|
|
FreeBuf(b);
|
|
|
|
b = NewBuf();
|
|
WriteBuf(b, init_key, SHA1_SIZE);
|
|
WriteBuf(b, key1, SHA1_SIZE);
|
|
WriteBufStr(b, "yasushineko");
|
|
Sha1(key2, b->Buf, b->Size);
|
|
FreeBuf(b);
|
|
|
|
// Generate the magic number for the KeepAlive
|
|
b = NewBuf();
|
|
WriteBuf(b, init_key, SHA1_SIZE);
|
|
WriteBufStr(b, "Magic_KeepAliveRequest");
|
|
Sha1(se->Magic_KeepAliveRequest, b->Buf, b->Size);
|
|
FreeBuf(b);
|
|
b = NewBuf();
|
|
WriteBuf(b, init_key, SHA1_SIZE);
|
|
WriteBufStr(b, "Magic_KeepAliveResponse");
|
|
Sha1(se->Magic_KeepAliveResponse, b->Buf, b->Size);
|
|
FreeBuf(b);
|
|
|
|
if (server_mode == false)
|
|
{
|
|
se->Magic_Disconnect = 0xffffffff00000000ULL | (UINT64)(Rand32());
|
|
}
|
|
|
|
Copy(se->Key_Init, init_key, SHA1_SIZE);
|
|
|
|
if (se->ServerMode)
|
|
{
|
|
Copy(se->Key_Send, key1, SHA1_SIZE);
|
|
Copy(se->Key_Recv, key2, SHA1_SIZE);
|
|
}
|
|
else
|
|
{
|
|
Copy(se->Key_Send, key2, SHA1_SIZE);
|
|
Copy(se->Key_Recv, key1, SHA1_SIZE);
|
|
}
|
|
|
|
Rand(se->NextIv, sizeof(se->NextIv));
|
|
|
|
se->ReplyAckList = NewInt64List(true);
|
|
|
|
se->NextKeepAliveInterval = RUDP_KEEPALIVE_INTERVAL_MIN + (Rand32() % (RUDP_KEEPALIVE_INTERVAL_MAX - RUDP_KEEPALIVE_INTERVAL_MIN));
|
|
|
|
se->RecvFifo = NewFifo();
|
|
se->SendFifo = NewFifo();
|
|
|
|
se->Dns_TranId = Rand16() % 65535 + 1;
|
|
|
|
// Generate the bulk transfer key
|
|
Rand(bulk_send_key, sizeof(bulk_send_key));
|
|
Rand(bulk_recv_key, sizeof(bulk_recv_key));
|
|
|
|
se->BulkSendKey = NewSharedBuffer(bulk_send_key, sizeof(bulk_send_key));
|
|
se->BulkRecvKey = NewSharedBuffer(bulk_recv_key, sizeof(bulk_recv_key));
|
|
|
|
Rand(se->BulkNextIv, sizeof(se->BulkNextIv));
|
|
Rand(se->BulkNextIv_V2, sizeof(se->BulkNextIv_V2));
|
|
|
|
se->BulkNextSeqNo = 1;
|
|
|
|
return se;
|
|
}
|
|
|
|
// Comparison function of the segment list items
|
|
int RUDPCompareSegmentList(void *p1, void *p2)
|
|
{
|
|
RUDP_SEGMENT *s1, *s2;
|
|
UINT r;
|
|
// Validate arguments
|
|
if (p1 == NULL || p2 == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
s1 = *((RUDP_SEGMENT **)p1);
|
|
s2 = *((RUDP_SEGMENT **)p2);
|
|
if (s1 == NULL || s2 == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
r = COMPARE_RET(s1->SeqNo, s2->SeqNo);
|
|
|
|
return r;
|
|
}
|
|
|
|
// Send a UDP packet
|
|
void RUDPSendPacket(RUDP_STACK *r, IP *dest_ip, UINT dest_port, void *data, UINT size, UINT icmp_type)
|
|
{
|
|
UDPPACKET *p;
|
|
// Validate arguments
|
|
if (r == NULL || dest_ip == NULL || dest_port == 0 || data == NULL || size == 0)
|
|
{
|
|
return;
|
|
}
|
|
|
|
p = NewUdpPacket(&r->UdpSock->LocalIP, r->UdpSock->LocalPort,
|
|
dest_ip, dest_port,
|
|
Clone(data, size), size);
|
|
|
|
if (r->Protocol == RUDP_PROTOCOL_ICMP || r->Protocol == RUDP_PROTOCOL_DNS)
|
|
{
|
|
// ICMP Type / DNS Tran ID
|
|
p->Type = icmp_type;
|
|
}
|
|
|
|
Add(r->SendPacketList, p);
|
|
}
|
|
|
|
// R-UDP main thread
|
|
void RUDPMainThread(THREAD *thread, void *param)
|
|
{
|
|
RUDP_STACK *r;
|
|
bool halt_flag = false;
|
|
// Validate arguments
|
|
if (thread == NULL || param == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
r = (RUDP_STACK *)param;
|
|
|
|
AddWaitThread(thread);
|
|
NoticeThreadInit(thread);
|
|
|
|
while (true)
|
|
{
|
|
UINT wait_interval;
|
|
UINT i;
|
|
UINT min_wait_interval;
|
|
UINT num_ignore_errors = 0;
|
|
|
|
r->Now = Tick64();
|
|
|
|
Lock(r->Lock);
|
|
{
|
|
Copy(&r->NatT_IP_Safe, &r->NatT_IP, sizeof(IP));
|
|
Copy(&r->My_Private_IP_Safe, &r->My_Private_IP, sizeof(IP));
|
|
}
|
|
Unlock(r->Lock);
|
|
|
|
// Receive the data from the UDP socket
|
|
while (true)
|
|
{
|
|
UINT ret;
|
|
IP ip_src;
|
|
UINT port_src;
|
|
|
|
ret = RecvFrom(r->UdpSock, &ip_src, &port_src, r->TmpBuf, sizeof(r->TmpBuf));
|
|
|
|
if (ret == SOCK_LATER)
|
|
{
|
|
// There is no packet more
|
|
break;
|
|
}
|
|
else if (ret != 0)
|
|
{
|
|
// Receive a Packet
|
|
bool ok = false;
|
|
UDPPACKET *p = NewUdpPacket(&ip_src, port_src,
|
|
&r->UdpSock->LocalIP, r->UdpSock->LocalPort,
|
|
Clone(r->TmpBuf, ret), ret);
|
|
|
|
if (r->Protocol == RUDP_PROTOCOL_ICMP)
|
|
{
|
|
// Analyse the incoming ICMP packet
|
|
UINT ip_header_size = GetIpHeaderSize(p->Data, p->Size);
|
|
|
|
if (ip_header_size >= sizeof(IPV4_HEADER))
|
|
{
|
|
if (p->Size >= (ip_header_size + sizeof(ICMP_HEADER) + sizeof(ICMP_ECHO) + SHA1_SIZE))
|
|
{
|
|
ICMP_HEADER *icmp_header = (ICMP_HEADER *)(((UCHAR *)p->Data) + ip_header_size);
|
|
ICMP_ECHO *echo_header = (ICMP_ECHO *)(((UCHAR *)p->Data) + ip_header_size + sizeof(ICMP_HEADER));
|
|
|
|
if (icmp_header->Type == ICMP_TYPE_ECHO_RESPONSE ||
|
|
icmp_header->Type == (r->ServerMode ? ICMP_TYPE_INFORMATION_REQUEST : ICMP_TYPE_INFORMATION_REPLY))
|
|
{
|
|
UCHAR hash[SHA1_SIZE];
|
|
|
|
Sha1(hash, ((UCHAR *)p->Data) + ip_header_size + sizeof(ICMP_HEADER) + sizeof(ICMP_ECHO) + SHA1_SIZE,
|
|
p->Size - (ip_header_size + sizeof(ICMP_HEADER) + sizeof(ICMP_ECHO) + SHA1_SIZE));
|
|
|
|
if (Cmp(hash, ((UCHAR *)p->Data) + ip_header_size + sizeof(ICMP_HEADER) + sizeof(ICMP_ECHO), SHA1_SIZE) == 0)
|
|
{
|
|
UCHAR *new_data;
|
|
UINT new_data_size;
|
|
if (r->ServerMode)
|
|
{
|
|
// On the server side, the ICMP ID and the SEQ NO of received messages are treated as a source port number
|
|
Copy(&p->SrcPort, echo_header, sizeof(UINT));
|
|
}
|
|
|
|
// Record the Type
|
|
p->Type = icmp_header->Type;
|
|
|
|
// Erase the header part
|
|
new_data_size = p->Size - (ip_header_size + sizeof(ICMP_HEADER) + sizeof(ICMP_ECHO) + SHA1_SIZE);
|
|
new_data = Clone(((UCHAR *)p->Data) + ip_header_size + sizeof(ICMP_HEADER) + sizeof(ICMP_ECHO) + SHA1_SIZE, new_data_size);
|
|
Free(p->Data);
|
|
p->Data = new_data;
|
|
p->Size = new_data_size;
|
|
|
|
ok = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else if (r->Protocol == RUDP_PROTOCOL_DNS)
|
|
{
|
|
// Analyse the incoming DNS packet
|
|
UINT offset;
|
|
|
|
if (r->ServerMode == false)
|
|
{
|
|
offset = 42;
|
|
}
|
|
else
|
|
{
|
|
offset = 37;
|
|
}
|
|
|
|
if (p->Size > offset)
|
|
{
|
|
UCHAR *new_data;
|
|
UINT new_size = p->Size - offset;
|
|
|
|
p->Type = *((USHORT *)p->Data);
|
|
|
|
new_data = Clone(((UCHAR *)p->Data) + offset, new_size);
|
|
|
|
Free(p->Data);
|
|
p->Data = new_data;
|
|
p->Size = new_size;
|
|
|
|
ok = true;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Don't do anything for ordinary UDP packet
|
|
ok = true;
|
|
}
|
|
|
|
if (ok)
|
|
{
|
|
// Process the received packet
|
|
RUDPRecvProc(r, p);
|
|
|
|
r->TotalPhysicalReceived += ret;
|
|
}
|
|
|
|
FreeUdpPacket(p);
|
|
}
|
|
else
|
|
{
|
|
if (r->UdpSock->IgnoreRecvErr)
|
|
{
|
|
// An ignorable reception error occurs
|
|
if ((num_ignore_errors++) >= MAX_NUM_IGNORE_ERRORS)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// A non-ignorable reception error occurs
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Call the interrupt notification callback function
|
|
if (r->ProcInterrupts != NULL)
|
|
{
|
|
r->ProcInterrupts(r);
|
|
}
|
|
|
|
RUDPInterruptProc(r);
|
|
|
|
// Send all packets in the transmission packet list
|
|
for (i = 0; i < LIST_NUM(r->SendPacketList); i++)
|
|
{
|
|
UDPPACKET *p = LIST_DATA(r->SendPacketList, i);
|
|
|
|
if (r->Protocol == RUDP_PROTOCOL_ICMP)
|
|
{
|
|
// In case of the ICMP protocol, assemble an ICMP header
|
|
UINT dst_size = sizeof(ICMP_HEADER) + sizeof(ICMP_ECHO) + SHA1_SIZE + p->Size;
|
|
UCHAR *dst_data = ZeroMalloc(dst_size);
|
|
|
|
ICMP_HEADER *icmp_header = (ICMP_HEADER *)dst_data;
|
|
ICMP_ECHO *icmp_echo = (ICMP_ECHO *)(dst_data + sizeof(ICMP_HEADER));
|
|
UCHAR *hash = dst_data + sizeof(ICMP_HEADER) + sizeof(ICMP_ECHO);
|
|
UCHAR *icmp_data = dst_data + sizeof(ICMP_HEADER) + sizeof(ICMP_ECHO) + SHA1_SIZE;
|
|
|
|
// Header
|
|
icmp_header->Type = (UCHAR)p->Type;
|
|
icmp_header->Code = 0;
|
|
icmp_header->Checksum = 0;
|
|
|
|
if (r->ServerMode)
|
|
{
|
|
// On the server side, use the port number in the opponent internal data as ICMP ID and SEQ NO
|
|
Copy(icmp_echo, &p->DestPort, 4);
|
|
}
|
|
else
|
|
{
|
|
// Use the fixed ICMP ID and SEQ NO on the client side
|
|
icmp_echo->Identifier = Endian16(r->Client_IcmpId);
|
|
icmp_echo->SeqNo = Endian16(r->Client_IcmpSeqNo);
|
|
}
|
|
|
|
// Data body
|
|
Copy(icmp_data, p->Data, p->Size);
|
|
|
|
// Hash
|
|
Sha1(hash, icmp_data, p->Size);
|
|
|
|
// Checksum calculation
|
|
icmp_header->Checksum = IpChecksum(dst_data, dst_size);
|
|
|
|
// Replacement
|
|
Free(p->Data);
|
|
p->Data = dst_data;
|
|
p->Size = dst_size;
|
|
}
|
|
else if (r->Protocol == RUDP_PROTOCOL_DNS)
|
|
{
|
|
BUF *b = NewBuf();
|
|
// In case of over DNS protocol, assemble a header that conforms to the DNS protocol
|
|
if (r->ServerMode == false)
|
|
{
|
|
// DNS query header
|
|
USHORT us = Rand16() % 65535 + 1;
|
|
static UCHAR dns_query_header_1[] =
|
|
{
|
|
0x01, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x08,
|
|
};
|
|
static UCHAR dns_query_header_2[] =
|
|
{
|
|
0x00, 0x00, 0x30, 0x00, 0x01, 0x00, 0x00, 0x29, 0x10,
|
|
0x00, 0x00, 0x00, 0x80, 0x00,
|
|
};
|
|
UCHAR rand_data[4];
|
|
char rand_str[MAX_SIZE];
|
|
|
|
Rand(rand_data, sizeof(rand_data));
|
|
BinToStr(rand_str, sizeof(rand_str), rand_data, sizeof(rand_data));
|
|
StrLower(rand_str);
|
|
|
|
WriteBuf(b, &us, sizeof(USHORT));
|
|
WriteBuf(b, dns_query_header_1, sizeof(dns_query_header_1));
|
|
WriteBuf(b, rand_str, 8);
|
|
WriteBuf(b, dns_query_header_2, sizeof(dns_query_header_2));
|
|
us = Endian16((USHORT)p->Size);
|
|
WriteBuf(b, &us, sizeof(USHORT));
|
|
WriteBuf(b, p->Data, p->Size);
|
|
}
|
|
else
|
|
{
|
|
// DNS response header
|
|
USHORT us = p->Type;
|
|
UINT ui;
|
|
static UCHAR dns_response_header_1[] =
|
|
{
|
|
0x81, 0x80, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00,
|
|
0x00, 0x00, 0x08,
|
|
};
|
|
static UCHAR dns_response_header_2[] =
|
|
{
|
|
0x00, 0x00, 0x30, 0x00, 0x01,
|
|
0xc0, 0x0c, 0x00, 0x30, 0x00, 0x01, 0x00, 0x00, 0xa4, 0x5b,
|
|
};
|
|
static UCHAR dns_response_header_3[] =
|
|
{
|
|
0x01, 0x00, 0x03, 0x08,
|
|
};
|
|
UCHAR rand_data[4];
|
|
char rand_str[MAX_SIZE];
|
|
|
|
Rand(rand_data, sizeof(rand_data));
|
|
BinToStr(rand_str, sizeof(rand_str), rand_data, sizeof(rand_data));
|
|
StrLower(rand_str);
|
|
|
|
WriteBuf(b, &us, sizeof(USHORT));
|
|
WriteBuf(b, dns_response_header_1, sizeof(dns_response_header_1));
|
|
WriteBuf(b, rand_str, 8);
|
|
WriteBuf(b, dns_response_header_2, sizeof(dns_response_header_2));
|
|
us = Endian16((USHORT)(p->Size + 4));
|
|
WriteBuf(b, &us, sizeof(USHORT));
|
|
WriteBuf(b, dns_response_header_3, sizeof(dns_response_header_3));
|
|
WriteBuf(b, p->Data, p->Size);
|
|
|
|
ui = Rand16() % (60 * 60 * 12) + (60 * 60 * 12);
|
|
WRITE_UINT(((UCHAR *)b->Buf) + 0x20, ui);
|
|
}
|
|
Free(p->Data);
|
|
p->Data = b->Buf;
|
|
p->Size = b->Size;
|
|
Free(b);
|
|
}
|
|
|
|
SendTo(r->UdpSock, &p->DstIP, p->DestPort, p->Data, p->Size);
|
|
|
|
r->TotalPhysicalSent += p->Size;
|
|
|
|
FreeUdpPacket(p);
|
|
}
|
|
DeleteAll(r->SendPacketList);
|
|
|
|
if (r->Halt)
|
|
{
|
|
// If it is necessary to stop, stop it after cycling through a loop
|
|
if (halt_flag == false)
|
|
{
|
|
halt_flag = true;
|
|
continue;
|
|
}
|
|
else
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Rest the CPU until the next event
|
|
wait_interval = GetNextIntervalForInterrupt(r->Interrupt);
|
|
if (r->ServerMode)
|
|
{
|
|
min_wait_interval = RUDP_LOOP_WAIT_INTERVAL_S;
|
|
}
|
|
else
|
|
{
|
|
min_wait_interval = RUDP_LOOP_WAIT_INTERVAL_C;
|
|
}
|
|
|
|
if (wait_interval == INFINITE)
|
|
{
|
|
wait_interval = min_wait_interval;
|
|
}
|
|
else
|
|
{
|
|
wait_interval = MIN(min_wait_interval, wait_interval);
|
|
}
|
|
|
|
#ifdef RUDP_DETAIL_LOG
|
|
Debug("wait_interval = %u\n", wait_interval);
|
|
#endif // RUDP_DETAIL_LOG
|
|
|
|
if (wait_interval >= 1)
|
|
{
|
|
WaitSockEvent(r->SockEvent, wait_interval);
|
|
}
|
|
|
|
#ifdef RUDP_DETAIL_LOG
|
|
if (r->ServerMode)
|
|
{
|
|
char str1[MAX_SIZE];
|
|
char str2[MAX_SIZE];
|
|
double rate = 0.0;
|
|
|
|
ToStr64(str1, r->TotalPhysicalReceived);
|
|
ToStr64(str2, r->TotalLogicalReceived);
|
|
|
|
if (r->TotalPhysicalReceived >= 1)
|
|
{
|
|
rate = (double)r->TotalLogicalReceived / (double)r->TotalPhysicalReceived;
|
|
}
|
|
|
|
Debug("%s / %s %.4f\n", str1, str2, rate);
|
|
}
|
|
#endif // RUDP_DETAIL_LOG
|
|
}
|
|
|
|
Disconnect(r->UdpSock);
|
|
|
|
DelWaitThread(thread);
|
|
}
|
|
|
|
// Generate a appropriate register host name from the IP address
|
|
void RUDPGetRegisterHostNameByIP(char *dst, UINT size, IP *ip)
|
|
{
|
|
char tmp[16];
|
|
// Validate arguments
|
|
if (dst == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (ip != NULL && IsIP4(ip))
|
|
{
|
|
UCHAR hash[SHA1_SIZE];
|
|
|
|
Sha1(hash, ip->addr, 4);
|
|
BinToStr(tmp, sizeof(tmp), hash, 2);
|
|
}
|
|
else
|
|
{
|
|
UCHAR rand[2];
|
|
Rand(rand, 2);
|
|
BinToStr(tmp, sizeof(tmp), rand, 2);
|
|
}
|
|
|
|
StrLower(tmp);
|
|
Format(dst, size,
|
|
(IsUseAlternativeHostname() ? UDP_NAT_T_SERVER_TAG_ALT : UDP_NAT_T_SERVER_TAG),
|
|
tmp[2], tmp[3]);
|
|
|
|
|
|
if (false)
|
|
{
|
|
Debug("Hash Src IP: %r\n"
|
|
"Hash Dst HN: %s\n",
|
|
ip,
|
|
dst);
|
|
}
|
|
}
|
|
|
|
// Analyze the IP address and port number from the string
|
|
bool RUDPParseIPAndPortStr(void *data, UINT data_size, IP *ip, UINT *port)
|
|
{
|
|
char tmp[MAX_SIZE];
|
|
UINT i;
|
|
char ipstr[MAX_SIZE];
|
|
char *portstr;
|
|
// Validate arguments
|
|
if (data == NULL || ip == NULL || port == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
Zero(tmp, sizeof(tmp));
|
|
|
|
Copy(tmp, data, MIN(data_size, sizeof(tmp) - 1));
|
|
|
|
if (StartWith(tmp, "IP=") == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
i = SearchStrEx(tmp, "#", 0, true);
|
|
if (i != INFINITE)
|
|
{
|
|
tmp[i] = 0;
|
|
}
|
|
|
|
StrCpy(ipstr, sizeof(ipstr), tmp + 3);
|
|
|
|
i = SearchStrEx(ipstr, ",PORT=", 0, true);
|
|
if (i == INFINITE)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
ipstr[i] = 0;
|
|
portstr = ipstr + i + 6;
|
|
|
|
StrToIP(ip, ipstr);
|
|
*port = ToInt(portstr);
|
|
|
|
return true;
|
|
}
|
|
|
|
// R-UDP NAT-T IP address acquisition thread
|
|
void RUDPIpQueryThread(THREAD *thread, void *param)
|
|
{
|
|
RUDP_STACK *r;
|
|
UINT64 next_getip_tick = 0;
|
|
UINT64 next_getprivate_ip_tick = 0;
|
|
UINT last_ip_hash = 0;
|
|
void *route_change_poller = NULL;
|
|
char current_hostname[MAX_SIZE];
|
|
bool last_time_ip_changed = false;
|
|
UINT num_retry = 0;
|
|
// Validate arguments
|
|
if (thread == NULL || param == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
r = (RUDP_STACK *)param;
|
|
|
|
last_ip_hash = GetHostIPAddressHash32();
|
|
|
|
route_change_poller = NewRouteChange();
|
|
IsRouteChanged(route_change_poller);
|
|
|
|
Zero(current_hostname, sizeof(current_hostname));
|
|
|
|
while (r->Halt == false)
|
|
{
|
|
UINT ip_hash = GetHostIPAddressHash32();
|
|
UINT64 now = Tick64();
|
|
bool ip_changed = false;
|
|
|
|
if (ip_hash != last_ip_hash)
|
|
{
|
|
last_time_ip_changed = false;
|
|
}
|
|
|
|
if ((ip_hash != last_ip_hash) || (IsRouteChanged(route_change_poller)))
|
|
{
|
|
if (last_time_ip_changed == false)
|
|
{
|
|
// Call all getting functions from the beginning
|
|
// if the routing table or the IP address of this host has changed
|
|
next_getip_tick = 0;
|
|
next_getprivate_ip_tick = 0;
|
|
ip_changed = true;
|
|
|
|
last_ip_hash = ip_hash;
|
|
|
|
last_time_ip_changed = true;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
last_time_ip_changed = false;
|
|
}
|
|
|
|
Lock(r->Lock);
|
|
{
|
|
if (StrCmpi(current_hostname, r->CurrentRegisterHostname) != 0)
|
|
{
|
|
// The target host name has changed
|
|
next_getip_tick = 0;
|
|
StrCpy(current_hostname, sizeof(current_hostname), r->CurrentRegisterHostname);
|
|
}
|
|
}
|
|
Unlock(r->Lock);
|
|
|
|
// Get the IP address of the NAT-T server with DNS
|
|
if (next_getip_tick == 0 || now >= next_getip_tick)
|
|
{
|
|
IP ip;
|
|
|
|
if (GetIP4(&ip, current_hostname) && IsZeroIp(&ip) == false)
|
|
{
|
|
Lock(r->Lock);
|
|
{
|
|
// Debug("%r %r\n",&r->NatT_IP, &ip);
|
|
if (CmpIpAddr(&r->NatT_IP, &ip) != 0)
|
|
{
|
|
// WHERE;
|
|
ip_changed = true;
|
|
Copy(&r->NatT_IP, &ip, sizeof(IP));
|
|
}
|
|
}
|
|
Unlock(r->Lock);
|
|
}
|
|
|
|
if (IsZeroIp(&r->NatT_IP))
|
|
{
|
|
num_retry++;
|
|
|
|
next_getip_tick = now + MIN((UINT64)UDP_NAT_T_GET_IP_INTERVAL * (UINT64)num_retry, (UINT64)UDP_NAT_T_GET_IP_INTERVAL_MAX);
|
|
}
|
|
else
|
|
{
|
|
next_getip_tick = now + (UINT64)UDP_NAT_T_GET_IP_INTERVAL_AFTER;
|
|
}
|
|
|
|
if (ip_changed)
|
|
{
|
|
Debug("NAT-T: NAT-T Server IP (%s): %r\n", current_hostname, &r->NatT_IP);
|
|
|
|
r->NatT_GetTokenNextTick = 0;
|
|
r->NatT_RegisterNextTick = 0;
|
|
r->NatT_GetTokenFailNum = 0;
|
|
r->NatT_RegisterFailNum = 0;
|
|
|
|
r->NatT_TranId = Rand64();
|
|
|
|
SetSockEvent(r->SockEvent);
|
|
}
|
|
}
|
|
|
|
// Get a private IP address of this host using TCP
|
|
if (next_getprivate_ip_tick == 0 || now >= next_getprivate_ip_tick)
|
|
{
|
|
IP ip;
|
|
|
|
if (GetMyPrivateIP(&ip, false))
|
|
{
|
|
Lock(r->Lock);
|
|
{
|
|
Copy(&r->My_Private_IP, &ip, sizeof(IP));
|
|
}
|
|
Unlock(r->Lock);
|
|
}
|
|
|
|
if (IsZeroIp(&r->My_Private_IP))
|
|
{
|
|
next_getprivate_ip_tick = now + (UINT64)UDP_NAT_T_GET_PRIVATE_IP_INTERVAL;
|
|
}
|
|
else
|
|
{
|
|
next_getprivate_ip_tick = now + (UINT64)GenRandInterval(UDP_NAT_T_GET_PRIVATE_IP_INTERVAL_AFTER_MIN, UDP_NAT_T_GET_PRIVATE_IP_INTERVAL_AFTER_MAX);
|
|
}
|
|
|
|
Debug("NAT-T: My Private IP: %r\n", &r->My_Private_IP);
|
|
}
|
|
|
|
if (r->Halt)
|
|
{
|
|
break;
|
|
}
|
|
|
|
Wait(r->HaltEvent, RUDP_LOOP_WAIT_INTERVAL_S);
|
|
}
|
|
|
|
FreeRouteChange(route_change_poller);
|
|
}
|
|
|
|
// Generate a random intervals
|
|
UINT GenRandInterval(UINT min, UINT max)
|
|
{
|
|
UINT a, b;
|
|
|
|
a = MIN(min, max);
|
|
b = MAX(min, max);
|
|
|
|
if (a == b)
|
|
{
|
|
return a;
|
|
}
|
|
|
|
return (Rand32() % (b - a)) + a;
|
|
}
|
|
|
|
// Identify the private IP of the interface which is used to connect to the Internet currently
|
|
bool GetMyPrivateIP(IP *ip, bool from_vg)
|
|
{
|
|
SOCK *s;
|
|
IP t;
|
|
char *hostname = UDP_NAT_T_GET_PRIVATE_IP_TCP_SERVER;
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
s = ConnectEx(hostname, UDP_NAT_T_PORT_FOR_TCP_1, UDP_NAT_T_GET_PRIVATE_IP_CONNECT_TIMEOUT);
|
|
|
|
if (s == NULL)
|
|
{
|
|
s = ConnectEx(hostname, UDP_NAT_T_PORT_FOR_TCP_2, UDP_NAT_T_GET_PRIVATE_IP_CONNECT_TIMEOUT);
|
|
|
|
if (s == NULL)
|
|
{
|
|
s = ConnectEx(GetRandHostNameForGetMyPrivateIP(), UDP_NAT_T_PORT_FOR_TCP_1, UDP_NAT_T_GET_PRIVATE_IP_CONNECT_TIMEOUT);
|
|
|
|
if (s == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
Copy(&t, &s->LocalIP, sizeof(IP));
|
|
|
|
Disconnect(s);
|
|
ReleaseSock(s);
|
|
|
|
if (IsZeroIp(&t))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
Copy(ip, &t, sizeof(IP));
|
|
|
|
return true;
|
|
}
|
|
char *GetRandHostNameForGetMyPrivateIP()
|
|
{
|
|
char *hosts[] =
|
|
{
|
|
"www.microsoft.com",
|
|
"www.yahoo.com",
|
|
"www.bing.com",
|
|
};
|
|
UINT num_hosts = 3;
|
|
|
|
return hosts[Rand32() % num_hosts];
|
|
}
|
|
|
|
// Function to wait until changing any IP address of the host or expiring the specified time or waking the event
|
|
void WaitUntilHostIPAddressChanged(void *p, EVENT *event, UINT timeout, UINT ip_check_interval)
|
|
{
|
|
UINT64 start, end;
|
|
UINT last_hash;
|
|
// Validate arguments
|
|
if (timeout == 0x7FFFFFFF)
|
|
{
|
|
timeout = 0xFFFFFFFF;
|
|
}
|
|
if (ip_check_interval == 0)
|
|
{
|
|
ip_check_interval = 0xFFFFFFFF;
|
|
}
|
|
if (event == NULL || timeout == 0)
|
|
{
|
|
return;
|
|
}
|
|
|
|
start = Tick64();
|
|
end = start + (UINT64)timeout;
|
|
last_hash = GetHostIPAddressHash32();
|
|
|
|
while (true)
|
|
{
|
|
UINT64 now = Tick64();
|
|
UINT next_interval;
|
|
|
|
if (now >= end)
|
|
{
|
|
break;
|
|
}
|
|
|
|
if (p != NULL)
|
|
{
|
|
if (IsRouteChanged(p))
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (last_hash != GetHostIPAddressHash32())
|
|
{
|
|
break;
|
|
}
|
|
|
|
next_interval = (UINT)(end - now);
|
|
next_interval = MIN(next_interval, ip_check_interval);
|
|
|
|
if (Wait(event, next_interval))
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
void *InitWaitUntilHostIPAddressChanged()
|
|
{
|
|
void *p = NewRouteChange();
|
|
|
|
if (p != NULL)
|
|
{
|
|
IsRouteChanged(p);
|
|
}
|
|
|
|
return p;
|
|
}
|
|
void FreeWaitUntilHostIPAddressChanged(void *p)
|
|
{
|
|
FreeRouteChange(p);
|
|
}
|
|
|
|
// Get whether the specified IPv6 address is on the local network
|
|
bool IsIPv6LocalNetworkAddress(IP *ip)
|
|
{
|
|
UINT type;
|
|
LIST *o;
|
|
UINT i;
|
|
bool ret = false;
|
|
IP mask64;
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
if (IsIP6(ip) == false)
|
|
{
|
|
return false;
|
|
}
|
|
if (IsZeroIp(ip))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
type = GetIPAddrType6(ip);
|
|
|
|
if (type & IPV6_ADDR_LOCAL_UNICAST)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
if ((type & IPV6_ADDR_GLOBAL_UNICAST) == 0)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
IntToSubnetMask6(&mask64, 64);
|
|
|
|
o = GetHostIPAddressList();
|
|
|
|
ret = false;
|
|
|
|
for (i = 0; i < LIST_NUM(o); i++)
|
|
{
|
|
IP *p = LIST_DATA(o, i);
|
|
|
|
if (IsIP6(p))
|
|
{
|
|
if (IsZeroIp(p) == false)
|
|
{
|
|
if (IsLocalHostIP6(p) == false)
|
|
{
|
|
if (IsInSameNetwork6(p, ip, &mask64))
|
|
{
|
|
ret = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
FreeHostIPAddressList(o);
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Check whether the specified IP address is localhost or the IP address of the local interface of itself
|
|
bool IsIPLocalHostOrMySelf(IP *ip)
|
|
{
|
|
LIST *o;
|
|
bool ret = false;
|
|
UINT i;
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
o = GetHostIPAddressList();
|
|
if (o == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
for (i = 0; i < LIST_NUM(o); i++)
|
|
{
|
|
IP *p = LIST_DATA(o, i);
|
|
|
|
if (CmpIpAddr(p, ip) == 0)
|
|
{
|
|
ret = true;
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
FreeHostIPAddressList(o);
|
|
|
|
if (IsLocalHostIP4(ip) || IsLocalHostIP6(ip))
|
|
{
|
|
ret = true;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Obtain the hash value of combining all of the IP address assigned to the host
|
|
UINT GetHostIPAddressHash32()
|
|
{
|
|
BUF *b;
|
|
UINT i;
|
|
UCHAR hash[SHA1_SIZE];
|
|
UINT ret;
|
|
LIST *o = GetHostIPAddressList();
|
|
|
|
if (o == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
b = NewBuf();
|
|
for (i = 0; i < LIST_NUM(o); i++)
|
|
{
|
|
IP *ip = LIST_DATA(o, i);
|
|
|
|
WriteBuf(b, ip, sizeof(IP));
|
|
|
|
WriteBufStr(b, ":-) yas (-:");
|
|
}
|
|
FreeHostIPAddressList(o);
|
|
|
|
WriteBuf(b, rand_port_numbers, sizeof(rand_port_numbers));
|
|
|
|
Sha1(hash, b->Buf, b->Size);
|
|
|
|
FreeBuf(b);
|
|
|
|
Copy(&ret, hash, sizeof(UINT));
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Create an IPv4 UDP socket destined for a particular target
|
|
SOCK *NewUDP4ForSpecificIp(IP *target_ip, UINT port)
|
|
{
|
|
SOCK *s;
|
|
IP local_ip;
|
|
// Validate arguments
|
|
if (target_ip == NULL || IsZeroIP(target_ip) || IsIP4(target_ip) == false)
|
|
{
|
|
target_ip = NULL;
|
|
}
|
|
|
|
Zero(&local_ip, sizeof(local_ip));
|
|
GetBestLocalIpForTarget(&local_ip, target_ip);
|
|
|
|
s = NewUDP4(port, &local_ip);
|
|
|
|
if (s == NULL)
|
|
{
|
|
s = NewUDP4(port, NULL);
|
|
}
|
|
|
|
return s;
|
|
}
|
|
|
|
// Get the best self IPv4 address to connect to the target IPv4 address
|
|
bool GetBestLocalIpForTarget(IP *local_ip, IP *target_ip)
|
|
{
|
|
bool ret = false;
|
|
ROUTE_ENTRY *e;
|
|
IP ip2;
|
|
UINT n = 0;
|
|
IP zero_ip;
|
|
// Validate arguments
|
|
Zero(local_ip, sizeof(IP));
|
|
ZeroIP4(&zero_ip);
|
|
if (target_ip == NULL)
|
|
{
|
|
target_ip = &zero_ip;
|
|
}
|
|
if (local_ip == NULL || IsIP4(target_ip) == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
Copy(&ip2, target_ip, sizeof(IP));
|
|
|
|
while (true)
|
|
{
|
|
n++;
|
|
if (n >= 64)
|
|
{
|
|
break;
|
|
}
|
|
|
|
e = GetBestRouteEntry(&ip2);
|
|
if (e != NULL)
|
|
{
|
|
if (IsZeroIp(&e->GatewayIP))
|
|
{
|
|
Free(e);
|
|
break;
|
|
}
|
|
|
|
if (e->LocalRouting)
|
|
{
|
|
ret = true;
|
|
Copy(local_ip, &e->GatewayIP, sizeof(IP));
|
|
Free(e);
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
Copy(&ip2, &e->GatewayIP, sizeof(IP));
|
|
}
|
|
|
|
Free(e);
|
|
}
|
|
}
|
|
|
|
if (ret == false)
|
|
{
|
|
if (IsLocalHostIP4(target_ip))
|
|
{
|
|
GetLocalHostIP4(local_ip);
|
|
ret = true;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Create a R-UDP client (Connection via NAT-T gateway)
|
|
SOCK *NewRUDPClientNatT(char *svc_name, IP *ip, UINT *error_code, UINT timeout, bool *cancel, char *hint_str, char *target_hostname)
|
|
{
|
|
IP nat_t_ip;
|
|
UINT dummy_int = 0;
|
|
UINT64 giveup_tick;
|
|
bool dummy_bool = false;
|
|
SOCK_EVENT *sock_event;
|
|
SOCK *sock;
|
|
bool same_lan = false;
|
|
char hostname[MAX_SIZE];
|
|
|
|
|
|
|
|
if (timeout == 0)
|
|
{
|
|
timeout = RUDP_TIMEOUT;
|
|
}
|
|
if (error_code == NULL)
|
|
{
|
|
error_code = &dummy_int;
|
|
}
|
|
if (cancel == NULL)
|
|
{
|
|
cancel = &dummy_bool;
|
|
}
|
|
*error_code = RUDP_ERROR_UNKNOWN;
|
|
if (svc_name == NULL || ip == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
ListenTcpForPopupFirewallDialog();
|
|
|
|
giveup_tick = Tick64() + (UINT64)timeout;
|
|
|
|
// Get the IP address of the NAT-T server
|
|
RUDPGetRegisterHostNameByIP(hostname, sizeof(hostname), ip);
|
|
if (GetIP4Ex(&nat_t_ip, hostname, 0, cancel) == false)
|
|
{
|
|
*error_code = RUDP_ERROR_NAT_T_NO_RESPONSE;
|
|
return NULL;
|
|
}
|
|
|
|
if (Tick64() >= giveup_tick)
|
|
{
|
|
*error_code = RUDP_ERROR_TIMEOUT;
|
|
return NULL;
|
|
}
|
|
if (*cancel)
|
|
{
|
|
*error_code = RUDP_ERROR_USER_CANCELED;
|
|
return NULL;
|
|
}
|
|
|
|
sock = NewUDP4ForSpecificIp(&nat_t_ip, 0);
|
|
if (sock == NULL)
|
|
{
|
|
*error_code = RUDP_ERROR_UNKNOWN;
|
|
return NULL;
|
|
}
|
|
else
|
|
{
|
|
UINT64 next_send_request_tick = 0;
|
|
INTERRUPT_MANAGER *interrupt = NewInterruptManager();
|
|
UINT64 tran_id = Rand64();
|
|
UINT tmp_size = 65536;
|
|
UCHAR *tmp = Malloc(tmp_size);
|
|
char result_ip_str[MAX_SIZE];
|
|
IP result_ip;
|
|
UINT result_port;
|
|
SOCK *ret = NULL;
|
|
UINT num_tries = 0;
|
|
UINT64 current_cookie = 0;
|
|
|
|
AddInterrupt(interrupt, giveup_tick);
|
|
|
|
sock_event = NewSockEvent();
|
|
JoinSockToSockEvent(sock, sock_event);
|
|
|
|
// Communication with the NAT-T server
|
|
while (true)
|
|
{
|
|
UINT64 now = Tick64();
|
|
UINT interval;
|
|
UINT r;
|
|
IP src_ip;
|
|
UINT src_port;
|
|
UINT err;
|
|
UINT num_ignore_errors = 0;
|
|
|
|
if (now >= giveup_tick)
|
|
{
|
|
// Time-out
|
|
LABEL_TIMEOUT:
|
|
*error_code = RUDP_ERROR_NAT_T_NO_RESPONSE;
|
|
break;
|
|
}
|
|
|
|
if (*cancel)
|
|
{
|
|
// User canceled
|
|
*error_code = RUDP_ERROR_USER_CANCELED;
|
|
break;
|
|
}
|
|
|
|
err = INFINITE;
|
|
|
|
// Receive a response packet from the NAT-T server
|
|
while (err == INFINITE)
|
|
{
|
|
r = RecvFrom(sock, &src_ip, &src_port, tmp, tmp_size);
|
|
if (r == SOCK_LATER)
|
|
{
|
|
// No packet
|
|
break;
|
|
}
|
|
else if (r == 0)
|
|
{
|
|
if (sock->IgnoreRecvErr == false)
|
|
{
|
|
// Communication error
|
|
goto LABEL_TIMEOUT;
|
|
}
|
|
else
|
|
{
|
|
if ((num_ignore_errors++) >= MAX_NUM_IGNORE_ERRORS)
|
|
{
|
|
goto LABEL_TIMEOUT;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Check the source IP address and the port number
|
|
if (CmpIpAddr(&src_ip, &nat_t_ip) == 0 && src_port == UDP_NAT_T_PORT)
|
|
{
|
|
BUF *b = NewBuf();
|
|
PACK *p;
|
|
|
|
WriteBuf(b, tmp, r);
|
|
SeekBuf(b, 0, 0);
|
|
|
|
|
|
p = BufToPack(b);
|
|
|
|
if (p != NULL)
|
|
{
|
|
UINT64 cookie = PackGetInt64(p, "cookie");
|
|
if (cookie != 0)
|
|
{
|
|
current_cookie = cookie;
|
|
}
|
|
|
|
// Compare tran_id
|
|
if (PackGetInt64(p, "tran_id") == tran_id)
|
|
{
|
|
// Compare opcode
|
|
if (PackCmpStr(p, "opcode", "nat_t_connect_request"))
|
|
{
|
|
bool ok = PackGetBool(p, "ok");
|
|
bool multi_candidate = PackGetBool(p, "multi_candidates");
|
|
|
|
if (ok)
|
|
{
|
|
// Success
|
|
PackGetStr(p, "result_ip", result_ip_str, sizeof(result_ip_str));
|
|
StrToIP(&result_ip, result_ip_str);
|
|
|
|
result_port = PackGetInt(p, "result_port");
|
|
|
|
same_lan = PackGetBool(p, "same_lan");
|
|
|
|
if (result_port != 0)
|
|
{
|
|
if (IsZeroIp(&result_ip) == false)
|
|
{
|
|
if ((sock->IPv6 == false && IsIP4(&result_ip)) ||
|
|
(sock->IPv6 && IsIP6(&result_ip)))
|
|
{
|
|
err = RUDP_ERROR_OK;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else if (multi_candidate)
|
|
{
|
|
// There are two or more computers behind the specified IP address
|
|
err = RUDP_ERROR_NAT_T_TWO_OR_MORE;
|
|
}
|
|
else
|
|
{
|
|
// Failure
|
|
err = RUDP_ERROR_NAT_T_NOT_FOUND;
|
|
}
|
|
}
|
|
}
|
|
|
|
FreePack(p);
|
|
}
|
|
|
|
FreeBuf(b);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (err != INFINITE)
|
|
{
|
|
*error_code = err;
|
|
break;
|
|
}
|
|
|
|
if (next_send_request_tick == 0 || now >= next_send_request_tick)
|
|
{
|
|
// Send a connection request to the NAT-T server
|
|
BUF *b;
|
|
char ip_str[MAX_SIZE];
|
|
PACK *p = NewPack();
|
|
|
|
PackAddStr(p, "opcode", "nat_t_connect_request");
|
|
PackAddInt64(p, "tran_id", tran_id);
|
|
IPToStr(ip_str, sizeof(ip_str), ip);
|
|
PackAddStr(p, "dest_ip", ip_str);
|
|
PackAddInt64(p, "cookie", current_cookie);
|
|
if (IsEmptyStr(hint_str) == false)
|
|
{
|
|
PackAddStr(p, "hint", hint_str);
|
|
}
|
|
if (IsEmptyStr(target_hostname) == false)
|
|
{
|
|
PackAddStr(p, "target_hostname", target_hostname);
|
|
}
|
|
PackAddStr(p, "svc_name", svc_name);
|
|
|
|
PackAddInt(p, "nat_traversal_version", UDP_NAT_TRAVERSAL_VERSION);
|
|
|
|
b = PackToBuf(p);
|
|
FreePack(p);
|
|
|
|
SendTo(sock, &nat_t_ip, UDP_NAT_T_PORT, b->Buf, b->Size);
|
|
FreeBuf(b);
|
|
|
|
// Determine the next transmission time
|
|
next_send_request_tick = now + (UINT64)UDP_NAT_T_CONNECT_INTERVAL * (UINT64)(Power(2, MAX(num_tries, 6)));
|
|
num_tries++;
|
|
AddInterrupt(interrupt, next_send_request_tick);
|
|
}
|
|
|
|
interval = GetNextIntervalForInterrupt(interrupt);
|
|
interval = MIN(interval, 50);
|
|
|
|
WaitSockEvent(sock_event, interval);
|
|
}
|
|
|
|
Free(tmp);
|
|
FreeInterruptManager(interrupt);
|
|
|
|
if (*error_code == RUDP_ERROR_OK)
|
|
{
|
|
UINT remain_timeout;
|
|
UINT64 now = Tick64();
|
|
// Success to get the IP address and the port number of the target
|
|
|
|
// Get the rest timeout tolerance
|
|
if (now <= giveup_tick)
|
|
{
|
|
remain_timeout = (UINT)(giveup_tick - now);
|
|
}
|
|
else
|
|
{
|
|
remain_timeout = 0;
|
|
}
|
|
|
|
remain_timeout = MAX(remain_timeout, 2000);
|
|
|
|
if (same_lan)
|
|
{
|
|
// Discard current UDP socket and create a new UDP socket in NewRUDPClientDirect().
|
|
// Because using a UDP socket which used for communication with the NAT-T server
|
|
// can cause trouble when the client and the server exists in the same LAN.
|
|
ReleaseSockEvent(sock_event);
|
|
ReleaseSock(sock);
|
|
|
|
sock = NULL;
|
|
sock_event = NULL;
|
|
}
|
|
|
|
ret = NewRUDPClientDirect(svc_name, &result_ip, result_port, error_code, remain_timeout, cancel,
|
|
sock, sock_event, 0, false);
|
|
}
|
|
|
|
if (sock_event != NULL)
|
|
{
|
|
ReleaseSockEvent(sock_event);
|
|
}
|
|
|
|
if (sock != NULL)
|
|
{
|
|
if (ret == NULL)
|
|
{
|
|
Disconnect(sock);
|
|
}
|
|
|
|
ReleaseSock(sock);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
// Listen to the TCP for a moment to show the firewall dialog
|
|
void ListenTcpForPopupFirewallDialog()
|
|
{
|
|
#ifdef OS_WIN32
|
|
static bool tried = false;
|
|
|
|
if (tried == false)
|
|
{
|
|
SOCK *s;
|
|
tried = true;
|
|
s = ListenAnyPortEx2(false, true);
|
|
|
|
if (s != NULL)
|
|
{
|
|
Disconnect(s);
|
|
ReleaseSock(s);
|
|
}
|
|
}
|
|
#endif // OS_WIN32
|
|
}
|
|
|
|
// Create a R-UDP client (direct connection)
|
|
SOCK *NewRUDPClientDirect(char *svc_name, IP *ip, UINT port, UINT *error_code, UINT timeout, bool *cancel, SOCK *sock, SOCK_EVENT *sock_event, UINT local_port, bool over_dns_mode)
|
|
{
|
|
RUDP_STACK *r;
|
|
UINT dummy_int = 0;
|
|
SOCK *ret = NULL;
|
|
// Validate arguments
|
|
if (error_code == NULL)
|
|
{
|
|
error_code = &dummy_int;
|
|
}
|
|
if (timeout == 0)
|
|
{
|
|
timeout = RUDP_TIMEOUT;
|
|
}
|
|
*error_code = RUDP_ERROR_UNKNOWN;
|
|
if (svc_name == NULL || ip == NULL || port == 0)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
r = NewRUDP(false, svc_name, NULL, NULL, NULL, local_port, sock, sock_event, false, over_dns_mode, ip, NULL, 0, NULL);
|
|
if (r == NULL)
|
|
{
|
|
*error_code = RUDP_ERROR_UNKNOWN;
|
|
return NULL;
|
|
}
|
|
|
|
// Set the port number and the target IP address
|
|
Lock(r->Lock);
|
|
{
|
|
Copy(&r->TargetIp, ip, sizeof(IP));
|
|
r->TargetPort = port;
|
|
r->TargetIpAndPortInited = true;
|
|
}
|
|
Unlock(r->Lock);
|
|
SetSockEvent(r->SockEvent);
|
|
|
|
// Wait for a connection success/failure to the target IP address
|
|
WaitEx(r->TargetConnectedEvent, timeout, cancel);
|
|
Lock(r->Lock);
|
|
{
|
|
if (r->TargetConnectedSock != NULL)
|
|
{
|
|
// The connection succeeded
|
|
ret = r->TargetConnectedSock;
|
|
r->TargetConnectedSock = NULL;
|
|
}
|
|
else
|
|
{
|
|
r->DoNotSetTargetConnectedSock = true;
|
|
}
|
|
}
|
|
Unlock(r->Lock);
|
|
|
|
if (ret == NULL)
|
|
{
|
|
// Stop the R-UDP stack if the connection has failed
|
|
*error_code = RUDP_ERROR_TIMEOUT;
|
|
FreeRUDP(r);
|
|
}
|
|
else if (cancel != NULL && (*cancel))
|
|
{
|
|
// User canceled
|
|
*error_code = RUDP_ERROR_USER_CANCELED;
|
|
|
|
Disconnect(ret);
|
|
ReleaseSock(ret);
|
|
|
|
ret = NULL;
|
|
}
|
|
else
|
|
{
|
|
*error_code = RUDP_ERROR_OK;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Creating a R-UDP server
|
|
RUDP_STACK *NewRUDPServer(char *svc_name, RUDP_STACK_INTERRUPTS_PROC *proc_interrupts, RUDP_STACK_RPC_RECV_PROC *proc_rpc_recv, void *param, UINT port, bool no_natt_register, bool over_dns_mode, volatile UINT *natt_global_udp_port, UCHAR rand_port_id, IP *listen_ip)
|
|
{
|
|
RUDP_STACK *r;
|
|
// Validate arguments
|
|
if (IsEmptyStr(svc_name))
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
if (g_no_rudp_server)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
ListenTcpForPopupFirewallDialog();
|
|
|
|
r = NewRUDP(true, svc_name, proc_interrupts, proc_rpc_recv, param, port, NULL, NULL, no_natt_register, over_dns_mode, NULL, natt_global_udp_port, rand_port_id, listen_ip);
|
|
|
|
if (r == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
// Creating a R-UDP
|
|
RUDP_STACK *NewRUDP(bool server_mode, char *svc_name, RUDP_STACK_INTERRUPTS_PROC *proc_interrupts, RUDP_STACK_RPC_RECV_PROC *proc_rpc_recv, void *param, UINT port, SOCK *sock, SOCK_EVENT *sock_event, bool server_no_natt_register, bool over_dns_mode, IP *client_target_ip, volatile UINT *natt_global_udp_port, UCHAR rand_port_id, IP *listen_ip)
|
|
{
|
|
RUDP_STACK *r;
|
|
char tmp[MAX_SIZE];
|
|
UCHAR pid_hash[SHA1_SIZE];
|
|
UINT pid;
|
|
USHORT pid_us;
|
|
|
|
// Validate arguments
|
|
if (IsEmptyStr(svc_name))
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
ListenTcpForPopupFirewallDialog();
|
|
|
|
if (sock == NULL)
|
|
{
|
|
if (server_mode == false && client_target_ip != NULL)
|
|
{
|
|
sock = NewUDP4ForSpecificIp(client_target_ip, port);
|
|
}
|
|
else
|
|
{
|
|
if (rand_port_id == 0)
|
|
{
|
|
sock = NewUDPEx2(port, false, listen_ip);
|
|
}
|
|
else
|
|
{
|
|
sock = NewUDPEx2RandMachineAndExePath(false, listen_ip, 0, rand_port_id);
|
|
}
|
|
}
|
|
|
|
if (sock == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
AddRef(sock->ref);
|
|
}
|
|
|
|
if (port == 0)
|
|
{
|
|
port = sock->LocalPort;
|
|
}
|
|
|
|
if (rand_port_id != 0)
|
|
{
|
|
rand_port_numbers[rand_port_id] = port;
|
|
}
|
|
|
|
if (sock_event == NULL)
|
|
{
|
|
sock_event = NewSockEvent();
|
|
}
|
|
else
|
|
{
|
|
AddRef(sock_event->ref);
|
|
}
|
|
|
|
r = ZeroMalloc(sizeof(RUDP_STACK));
|
|
|
|
r->NatT_SessionKey = Rand64();
|
|
|
|
StrCpy(r->SvcName, sizeof(r->SvcName), svc_name);
|
|
r->RandPortId = rand_port_id;
|
|
r->NatTGlobalUdpPort = natt_global_udp_port;
|
|
r->ServerMode = server_mode;
|
|
r->Interrupt = NewInterruptManager();
|
|
r->SessionList = NewList(RUDPCompareSessionList);
|
|
r->UdpSock = sock;
|
|
r->Port = port;
|
|
r->SockEvent = sock_event;
|
|
r->HaltEvent = NewEvent();
|
|
r->Now = Tick64();
|
|
r->Lock = NewLock();
|
|
r->Param = param;
|
|
r->TargetConnectedEvent = NewEvent();
|
|
r->SendPacketList = NewList(NULL);
|
|
r->NewSockConnectEvent = NewEvent();
|
|
r->NewSockQueue = NewQueue();
|
|
r->NatT_TranId = Rand64();
|
|
|
|
r->NatT_SourceIpList = NewListFast(NULL);
|
|
|
|
StrCpy(tmp, sizeof(tmp), r->SvcName);
|
|
Trim(tmp);
|
|
StrLower(tmp);
|
|
|
|
Sha1(r->SvcNameHash, tmp, StrLen(tmp));
|
|
|
|
r->Client_IcmpId = (USHORT)(Rand32() % 65534 + 1);
|
|
r->Client_IcmpSeqNo = (USHORT)(Rand32() % 65534 + 1);
|
|
|
|
// Determination of the type of the protocol
|
|
r->Protocol = RUDP_PROTOCOL_UDP;
|
|
if (r->Port == MAKE_SPECIAL_PORT(IP_PROTO_ICMPV4))
|
|
{
|
|
r->Protocol = RUDP_PROTOCOL_ICMP;
|
|
|
|
// Generate the ICMP ID based on the process ID
|
|
#ifdef OS_WIN32
|
|
pid = (UINT)MsGetProcessId();
|
|
#else // OS_WIN32
|
|
pid = (UINT)getpid();
|
|
#endif // OS_WIN32
|
|
|
|
pid = Endian32(pid);
|
|
Sha1(pid_hash, &pid, sizeof(UINT));
|
|
|
|
pid_us = READ_USHORT(pid_hash);
|
|
if (pid_us == 0 || pid_us == 0xFFFF)
|
|
{
|
|
pid_us = 1;
|
|
}
|
|
|
|
r->Client_IcmpId = pid_us;
|
|
}
|
|
else if (over_dns_mode)
|
|
{
|
|
r->Protocol = RUDP_PROTOCOL_DNS;
|
|
}
|
|
|
|
if (r->ServerMode)
|
|
{
|
|
r->NoNatTRegister = server_no_natt_register;
|
|
|
|
if (r->Protocol == RUDP_PROTOCOL_ICMP || r->Protocol == RUDP_PROTOCOL_DNS)
|
|
{
|
|
// Never register to the NAT-T server in case of using the DNS or the ICMP
|
|
r->NoNatTRegister = true;
|
|
}
|
|
}
|
|
|
|
if (true
|
|
)
|
|
{
|
|
RUDPGetRegisterHostNameByIP(r->CurrentRegisterHostname, sizeof(r->CurrentRegisterHostname), NULL);
|
|
}
|
|
|
|
if (r->ServerMode)
|
|
{
|
|
r->ProcInterrupts = proc_interrupts;
|
|
r->ProcRpcRecv = proc_rpc_recv;
|
|
}
|
|
|
|
if (r->ServerMode && r->NoNatTRegister == false
|
|
)
|
|
{
|
|
r->IpQueryThread = NewThread(RUDPIpQueryThread, r);
|
|
}
|
|
|
|
JoinSockToSockEvent(r->UdpSock, r->SockEvent);
|
|
|
|
r->Thread = NewThread(RUDPMainThread, r);
|
|
WaitThreadInit(r->Thread);
|
|
|
|
return r;
|
|
}
|
|
|
|
// R-UDP session comparison function
|
|
int RUDPCompareSessionList(void *p1, void *p2)
|
|
{
|
|
RUDP_SESSION *s1, *s2;
|
|
UINT r;
|
|
// Validate arguments
|
|
if (p1 == NULL || p2 == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
s1 = *((RUDP_SESSION **)p1);
|
|
s2 = *((RUDP_SESSION **)p2);
|
|
if (s1 == NULL || s2 == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
r = CmpIpAddr(&s1->YourIp, &s2->YourIp);
|
|
if (r != 0)
|
|
{
|
|
return r;
|
|
}
|
|
|
|
r = COMPARE_RET(s1->YourPort, s2->YourPort);
|
|
if (r != 0)
|
|
{
|
|
return r;
|
|
}
|
|
|
|
r = CmpIpAddr(&s1->MyIp, &s2->MyIp);
|
|
if (r != 0)
|
|
{
|
|
return r;
|
|
}
|
|
|
|
r = COMPARE_RET(s1->MyPort, s2->MyPort);
|
|
if (r != 0)
|
|
{
|
|
return r;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
// Release of the R-UDP
|
|
void FreeRUDP(RUDP_STACK *r)
|
|
{
|
|
UINT i;
|
|
// Validate arguments
|
|
if (r == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
r->Halt = true;
|
|
Set(r->HaltEvent);
|
|
SetSockEvent(r->SockEvent);
|
|
|
|
if (r->ServerMode && r->NoNatTRegister == false)
|
|
{
|
|
if (r->IpQueryThread != NULL)
|
|
{
|
|
WaitThread(r->IpQueryThread, INFINITE);
|
|
ReleaseThread(r->IpQueryThread);
|
|
}
|
|
}
|
|
|
|
WaitThread(r->Thread, INFINITE);
|
|
ReleaseThread(r->Thread);
|
|
|
|
for (i = 0; i < LIST_NUM(r->SessionList); i++)
|
|
{
|
|
RUDP_SESSION *se = LIST_DATA(r->SessionList, i);
|
|
|
|
RUDPFreeSession(se);
|
|
}
|
|
|
|
ReleaseList(r->SessionList);
|
|
|
|
for (i = 0; i < LIST_NUM(r->SendPacketList); i++)
|
|
{
|
|
UDPPACKET *p = LIST_DATA(r->SendPacketList, i);
|
|
|
|
FreeUdpPacket(p);
|
|
}
|
|
|
|
while (true)
|
|
{
|
|
SOCK *s = GetNext(r->NewSockQueue);
|
|
if (s == NULL)
|
|
{
|
|
break;
|
|
}
|
|
|
|
Disconnect(s);
|
|
ReleaseSock(s);
|
|
}
|
|
|
|
for (i = 0; i < LIST_NUM(r->NatT_SourceIpList); i++)
|
|
{
|
|
RUDP_SOURCE_IP *sip = (RUDP_SOURCE_IP *)LIST_DATA(r->NatT_SourceIpList, i);
|
|
|
|
Free(sip);
|
|
}
|
|
|
|
ReleaseList(r->NatT_SourceIpList);
|
|
|
|
ReleaseQueue(r->NewSockQueue);
|
|
|
|
ReleaseList(r->SendPacketList);
|
|
|
|
FreeInterruptManager(r->Interrupt);
|
|
|
|
Disconnect(r->UdpSock);
|
|
ReleaseSock(r->UdpSock);
|
|
ReleaseSockEvent(r->SockEvent);
|
|
ReleaseEvent(r->HaltEvent);
|
|
ReleaseEvent(r->TargetConnectedEvent);
|
|
|
|
ReleaseEvent(r->NewSockConnectEvent);
|
|
|
|
Disconnect(r->TargetConnectedSock);
|
|
ReleaseSock(r->TargetConnectedSock);
|
|
|
|
DeleteLock(r->Lock);
|
|
|
|
if (r->RandPortId != 0)
|
|
{
|
|
rand_port_numbers[r->RandPortId] = 0;
|
|
}
|
|
|
|
Free(r);
|
|
}
|
|
|
|
// Generate a hash from the current computer name and the process name
|
|
void GetCurrentMachineIpProcessHash(void *hash)
|
|
{
|
|
// Validate arguments
|
|
if (hash == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Lock(machine_ip_process_hash_lock);
|
|
{
|
|
if (IsZero(machine_ip_process_hash, SHA1_SIZE))
|
|
{
|
|
GetCurrentMachineIpProcessHashInternal(machine_ip_process_hash);
|
|
}
|
|
|
|
Copy(hash, machine_ip_process_hash, SHA1_SIZE);
|
|
}
|
|
Unlock(machine_ip_process_hash_lock);
|
|
}
|
|
void GetCurrentMachineIpProcessHashInternal(void *hash)
|
|
{
|
|
BUF *b;
|
|
LIST *ip_list;
|
|
char machine_name[MAX_SIZE];
|
|
wchar_t exe_path[MAX_PATH];
|
|
char *product_id = NULL;
|
|
// Validate arguments
|
|
if (hash == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
#ifdef OS_WIN32
|
|
product_id = MsRegReadStr(REG_LOCAL_MACHINE, "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion", "ProductId");
|
|
if (product_id == NULL)
|
|
{
|
|
product_id = MsRegReadStr(REG_LOCAL_MACHINE, "SOFTWARE\\Microsoft\\Windows\\CurrentVersion", "ProductId");
|
|
}
|
|
#endif // OS_WIN32
|
|
|
|
b = NewBuf();
|
|
|
|
GetMachineHostName(machine_name, sizeof(machine_name));
|
|
Trim(machine_name);
|
|
StrUpper(machine_name);
|
|
|
|
GetExeNameW(exe_path, sizeof(exe_path));
|
|
UniTrim(exe_path);
|
|
UniStrUpper(exe_path);
|
|
|
|
WriteBuf(b, machine_name, StrSize(machine_name));
|
|
WriteBuf(b, exe_path, UniStrSize(exe_path));
|
|
WriteBuf(b, product_id, StrSize(product_id));
|
|
|
|
ip_list = GetHostIPAddressList();
|
|
if (ip_list != NULL)
|
|
{
|
|
UINT i;
|
|
for (i = 0; i < LIST_NUM(ip_list); i++)
|
|
{
|
|
IP *ip = LIST_DATA(ip_list, i);
|
|
|
|
WriteBuf(b, ip, sizeof(IP));
|
|
}
|
|
}
|
|
FreeHostIPAddressList(ip_list);
|
|
|
|
Sha1(hash, b->Buf, b->Size);
|
|
|
|
FreeBuf(b);
|
|
|
|
Free(product_id);
|
|
}
|
|
|
|
// Create a pair of pre-bound TCP sockets
|
|
bool NewTcpPair(SOCK **s1, SOCK **s2)
|
|
{
|
|
SOCK *a;
|
|
SOCK *s, *c;
|
|
TUBE *t1, *t2;
|
|
SOCK_EVENT *e1, *e2;
|
|
// Validate arguments
|
|
if (s1 == NULL || s2 == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
a = ListenAnyPortEx2(true, true);
|
|
if (a == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
c = Connect("127.0.0.1", a->LocalPort);
|
|
if (c == NULL)
|
|
{
|
|
ReleaseSock(a);
|
|
return false;
|
|
}
|
|
|
|
s = Accept(a);
|
|
if (s == NULL)
|
|
{
|
|
ReleaseSock(c);
|
|
ReleaseSock(a);
|
|
return false;
|
|
}
|
|
|
|
ReleaseSock(a);
|
|
|
|
if ((s->LocalPort != c->RemotePort) || (s->RemotePort != c->LocalPort))
|
|
{
|
|
ReleaseSock(s);
|
|
ReleaseSock(c);
|
|
return false;
|
|
}
|
|
|
|
NewTubePair(&t1, &t2, sizeof(TCP_PAIR_HEADER));
|
|
|
|
// Creating a socket event
|
|
e1 = NewSockEvent();
|
|
e2 = NewSockEvent();
|
|
|
|
SetTubeSockEvent(t1, e1);
|
|
SetTubeSockEvent(t2, e2);
|
|
|
|
AddRef(t1->Ref);
|
|
AddRef(t2->Ref);
|
|
s->BulkRecvTube = c->BulkSendTube = t1;
|
|
s->BulkSendTube = c->BulkRecvTube = t2;
|
|
|
|
ReleaseSockEvent(e1);
|
|
ReleaseSockEvent(e2);
|
|
|
|
*s1 = s;
|
|
*s2 = c;
|
|
|
|
return true;
|
|
}
|
|
|
|
// Listen in any available port
|
|
SOCK *ListenAnyPortEx2(bool local_only, bool disable_ca)
|
|
{
|
|
UINT i;
|
|
SOCK *s;
|
|
for (i = 40000; i < 65536; i++)
|
|
{
|
|
s = ListenEx(i, local_only);
|
|
if (s != NULL)
|
|
{
|
|
return s;
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
|
|
#if OPENSSL_VERSION_NUMBER < 0x10100000L
|
|
#define X509_STORE_CTX_get0_cert(o) ((o)->cert)
|
|
#endif
|
|
|
|
// Verify client SSL certificate during TLS handshake.
|
|
//
|
|
// (actually, only save the certificate for later authentication in Protocol.c)
|
|
int SslCertVerifyCallback(int preverify_ok, X509_STORE_CTX *ctx)
|
|
{
|
|
SSL *ssl;
|
|
struct SslClientCertInfo *clientcert;
|
|
X509 *cert;
|
|
|
|
ssl = X509_STORE_CTX_get_ex_data(ctx, SSL_get_ex_data_X509_STORE_CTX_idx());
|
|
clientcert = SSL_get_ex_data(ssl, GetSslClientCertIndex());
|
|
|
|
if (clientcert != NULL)
|
|
{
|
|
clientcert->PreverifyErr = X509_STORE_CTX_get_error(ctx);
|
|
clientcert->PreverifyErrMessage[0] = '\0';
|
|
if (!preverify_ok)
|
|
{
|
|
const char *msg = X509_verify_cert_error_string(clientcert->PreverifyErr);
|
|
StrCpy(clientcert->PreverifyErrMessage, PREVERIFY_ERR_MESSAGE_SIZE, (char *)msg);
|
|
Debug("SslCertVerifyCallback preverify error: '%s'\n", msg);
|
|
}
|
|
else
|
|
{
|
|
cert = X509_STORE_CTX_get0_cert(ctx);
|
|
if (cert != NULL)
|
|
{
|
|
X *tmpX = X509ToX(cert); // this only wraps cert, but we need to make a copy
|
|
if (!CompareX(tmpX, clientcert->X))
|
|
{
|
|
X *copyX = CloneX(tmpX);
|
|
if (clientcert->X != NULL)
|
|
{
|
|
FreeX(clientcert->X);
|
|
}
|
|
clientcert->X = copyX;
|
|
}
|
|
tmpX->do_not_free = true; // do not release inner X509 object
|
|
FreeX(tmpX);
|
|
}
|
|
}
|
|
}
|
|
|
|
return 1; /* allow the verification process to continue */
|
|
}
|
|
|
|
// Create a new SSL pipe
|
|
SSL_PIPE *NewSslPipe(bool server_mode, X *x, K *k, DH_CTX *dh)
|
|
{
|
|
return NewSslPipeEx(server_mode, x, k, dh, false, NULL);
|
|
}
|
|
|
|
// Create a new SSL pipe with extended options
|
|
SSL_PIPE *NewSslPipeEx(bool server_mode, X *x, K *k, DH_CTX *dh, bool verify_peer, struct SslClientCertInfo *clientcert)
|
|
{
|
|
SSL_PIPE *s;
|
|
SSL *ssl;
|
|
SSL_CTX *ssl_ctx = NewSSLCtx(server_mode);
|
|
|
|
Lock(openssl_lock);
|
|
{
|
|
if (server_mode)
|
|
{
|
|
#ifdef SSL_OP_NO_TLSv1_3
|
|
SSL_CTX_set_options(ssl_ctx, SSL_OP_NO_TLSv1_3); // For some reason pppd under linux doesn't like it
|
|
#endif
|
|
|
|
AddChainSslCertOnDirectory(ssl_ctx);
|
|
|
|
if (dh != NULL)
|
|
{
|
|
SSL_CTX_set_tmp_dh(ssl_ctx, dh->dh);
|
|
}
|
|
|
|
#if 0
|
|
// Cannot get config
|
|
#ifdef SSL_SECOP_VERSION
|
|
if (sock->SslAcceptSettings.Override_Security_Level)
|
|
{
|
|
SSL_CTX_set_security_level(ssl_ctx, sock->SslAcceptSettings.Override_Security_Level_Value);
|
|
}
|
|
#endif
|
|
#endif
|
|
}
|
|
|
|
if (verify_peer)
|
|
{
|
|
SSL_CTX_set_verify(ssl_ctx, SSL_VERIFY_PEER, SslCertVerifyCallback);
|
|
}
|
|
|
|
if (dh != NULL)
|
|
{
|
|
SSL_CTX_set_options(ssl_ctx, SSL_OP_SINGLE_DH_USE);
|
|
}
|
|
|
|
if (server_mode == false)
|
|
{
|
|
SSL_CTX_set_options(ssl_ctx, SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS);
|
|
}
|
|
|
|
ssl = SSL_new(ssl_ctx);
|
|
|
|
SSL_set_ex_data(ssl, GetSslClientCertIndex(), clientcert);
|
|
}
|
|
Unlock(openssl_lock);
|
|
|
|
s = ZeroMalloc(sizeof(SSL_PIPE));
|
|
|
|
s->ssl = ssl;
|
|
s->ssl_ctx = ssl_ctx;
|
|
s->ServerMode = server_mode;
|
|
|
|
s->SslInOut = NewSslBioSsl();
|
|
s->RawIn = NewSslBioMem();
|
|
s->RawOut = NewSslBioMem();
|
|
|
|
if (x != NULL && k != NULL)
|
|
{
|
|
Lock(openssl_lock);
|
|
{
|
|
SSL_use_certificate(s->ssl, x->x509);
|
|
SSL_use_PrivateKey(s->ssl, k->pkey);
|
|
}
|
|
Unlock(openssl_lock);
|
|
}
|
|
|
|
if (s->ServerMode == false)
|
|
{
|
|
SSL_set_connect_state(s->ssl);
|
|
}
|
|
else
|
|
{
|
|
SSL_set_accept_state(s->ssl);
|
|
}
|
|
|
|
SSL_set_bio(s->ssl, s->RawIn->bio, s->RawOut->bio);
|
|
BIO_set_ssl(s->SslInOut->bio, s->ssl, BIO_NOCLOSE);
|
|
|
|
//s->RawIn->NoFree = true;
|
|
s->RawOut->NoFree = true;
|
|
|
|
return s;
|
|
}
|
|
|
|
// Synchronization of the SSL pipe
|
|
bool SyncSslPipe(SSL_PIPE *s)
|
|
{
|
|
UINT i;
|
|
// Validate arguments
|
|
if (s == NULL || s->IsDisconnected)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
if (SslBioSync(s->RawIn, true, false) == false)
|
|
{
|
|
s->IsDisconnected = true;
|
|
Debug("SyncSslPipe: s->RawIn error.\n");
|
|
return false;
|
|
}
|
|
|
|
if (SslBioSync(s->RawOut, false, true) == false)
|
|
{
|
|
s->IsDisconnected = true;
|
|
Debug("SyncSslPipe: s->RawOut error.\n");
|
|
return false;
|
|
}
|
|
|
|
if (SslBioSync(s->SslInOut, true, true) == false)
|
|
{
|
|
s->IsDisconnected = true;
|
|
Debug("SyncSslPipe: s->SslInOut error.\n");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
// Release of the SSL pipe
|
|
void FreeSslPipe(SSL_PIPE *s)
|
|
{
|
|
// Validate arguments
|
|
if (s == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
FreeSslBio(s->SslInOut);
|
|
FreeSslBio(s->RawIn);
|
|
FreeSslBio(s->RawOut);
|
|
|
|
SSL_free(s->ssl);
|
|
SSL_CTX_free(s->ssl_ctx);
|
|
|
|
Free(s);
|
|
}
|
|
|
|
// Release of the SSL BIO
|
|
void FreeSslBio(SSL_BIO *b)
|
|
{
|
|
// Validate arguments
|
|
if (b == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (b->NoFree == false)
|
|
{
|
|
BIO_free(b->bio);
|
|
}
|
|
|
|
ReleaseFifo(b->RecvFifo);
|
|
ReleaseFifo(b->SendFifo);
|
|
|
|
Free(b);
|
|
}
|
|
|
|
// Create a new SSL BIO (SSL)
|
|
SSL_BIO *NewSslBioSsl()
|
|
{
|
|
SSL_BIO *b = ZeroMalloc(sizeof(SSL_BIO));
|
|
|
|
b->bio = BIO_new(BIO_f_ssl());
|
|
|
|
b->RecvFifo = NewFifo();
|
|
b->SendFifo = NewFifo();
|
|
|
|
return b;
|
|
}
|
|
|
|
// Create a new SSL BIO (memory)
|
|
SSL_BIO *NewSslBioMem()
|
|
{
|
|
SSL_BIO *b = ZeroMalloc(sizeof(SSL_BIO));
|
|
|
|
b->bio = BIO_new(BIO_s_mem());
|
|
|
|
b->RecvFifo = NewFifo();
|
|
b->SendFifo = NewFifo();
|
|
|
|
return b;
|
|
}
|
|
|
|
// Synchronize memory contents of the SSL BIO with the FIFO
|
|
bool SslBioSync(SSL_BIO *b, bool sync_send, bool sync_recv)
|
|
{
|
|
// Validate arguments
|
|
if (b == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (b->IsDisconnected)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// Write the contents of the SendFifo to the BIO
|
|
if (sync_send)
|
|
{
|
|
while (b->SendFifo->size >= 1)
|
|
{
|
|
int r = BIO_write(b->bio, GetFifoPointer(b->SendFifo), FifoSize(b->SendFifo));
|
|
|
|
if (r == 0)
|
|
{
|
|
b->IsDisconnected = true;
|
|
WHERE;
|
|
return false;
|
|
}
|
|
else
|
|
{
|
|
if (r < 0)
|
|
{
|
|
if (BIO_should_retry(b->bio))
|
|
{
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
b->IsDisconnected = true;
|
|
WHERE;
|
|
return false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ReadFifo(b->SendFifo, NULL, (UINT)r);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Save to the RecvFifo by reading from the BIO
|
|
if (sync_recv)
|
|
{
|
|
while (true)
|
|
{
|
|
UCHAR tmp[4096];
|
|
int r;
|
|
|
|
r = BIO_read(b->bio, tmp, sizeof(tmp));
|
|
|
|
if (r == 0)
|
|
{
|
|
b->IsDisconnected = true;
|
|
WHERE;
|
|
return false;
|
|
}
|
|
else
|
|
{
|
|
if (r < 0)
|
|
{
|
|
if (BIO_should_retry(b->bio))
|
|
{
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
b->IsDisconnected = true;
|
|
WHERE;
|
|
Debug("OpenSSL Error: %s\n", ERR_error_string(ERR_peek_last_error(), NULL));
|
|
return false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
WriteFifo(b->RecvFifo, tmp, (UINT)r);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
// Release the memory for the return value of the ICMP API
|
|
void IcmpApiFreeResult(ICMP_RESULT *ret)
|
|
{
|
|
// Validate arguments
|
|
if (ret == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (ret->Data != NULL)
|
|
{
|
|
Free(ret->Data);
|
|
}
|
|
|
|
Free(ret);
|
|
}
|
|
|
|
// Send an ICMP Echo using ICMP API
|
|
ICMP_RESULT *IcmpApiEchoSend(IP *dest_ip, UCHAR ttl, UCHAR *data, UINT size, UINT timeout)
|
|
{
|
|
#ifdef OS_WIN32
|
|
// Validate arguments
|
|
if (dest_ip == NULL || IsIP4(dest_ip) == false || (size != 0 && data == NULL))
|
|
{
|
|
return NULL;
|
|
}
|
|
if (ttl == 0)
|
|
{
|
|
ttl = 127;
|
|
}
|
|
|
|
if (IsIcmpApiSupported())
|
|
{
|
|
HANDLE h;
|
|
DWORD dw;
|
|
IPAddr dest_addr;
|
|
UINT reply_size;
|
|
ICMP_ECHO_REPLY *reply;
|
|
ICMP_RESULT *ret = NULL;
|
|
IP_OPTION_INFORMATION opt;
|
|
|
|
h = w32net->IcmpCreateFile();
|
|
|
|
if (h == INVALID_HANDLE_VALUE)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
Zero(&opt, sizeof(opt));
|
|
opt.Ttl = ttl;
|
|
|
|
IPToInAddr((struct in_addr *)&dest_addr, dest_ip);
|
|
|
|
reply_size = sizeof(*reply) + size + 64;
|
|
reply = ZeroMalloc(reply_size);
|
|
|
|
dw = w32net->IcmpSendEcho(h, dest_addr, data, size, &opt, reply, reply_size, timeout);
|
|
|
|
ret = ZeroMalloc(sizeof(ICMP_RESULT));
|
|
|
|
if (dw >= 1 && reply->Status == IP_SUCCESS)
|
|
{
|
|
ret->Ok = true;
|
|
}
|
|
else
|
|
{
|
|
switch (reply->Status)
|
|
{
|
|
case IP_DEST_NET_UNREACHABLE:
|
|
ret->Type = ICMP_TYPE_DESTINATION_UNREACHABLE;
|
|
ret->Code = ICMP_CODE_NET_UNREACHABLE;
|
|
break;
|
|
|
|
case IP_DEST_HOST_UNREACHABLE:
|
|
ret->Type = ICMP_TYPE_DESTINATION_UNREACHABLE;
|
|
ret->Code = ICMP_CODE_HOST_UNREACHABLE;
|
|
break;
|
|
|
|
case IP_DEST_PROT_UNREACHABLE:
|
|
ret->Type = ICMP_TYPE_DESTINATION_UNREACHABLE;
|
|
ret->Code = ICMP_CODE_PROTOCOL_UNREACHABLE;
|
|
break;
|
|
|
|
case IP_DEST_PORT_UNREACHABLE:
|
|
ret->Type = ICMP_TYPE_DESTINATION_UNREACHABLE;
|
|
ret->Code = ICMP_CODE_PORT_UNREACHABLE;
|
|
break;
|
|
|
|
case IP_TTL_EXPIRED_TRANSIT:
|
|
ret->Type = ICMP_TYPE_TIME_EXCEEDED;
|
|
ret->Code = ICMP_CODE_TTL_EXCEEDED_IN_TRANSIT;
|
|
break;
|
|
|
|
case IP_TTL_EXPIRED_REASSEM:
|
|
ret->Type = ICMP_TYPE_TIME_EXCEEDED;
|
|
ret->Code = ICMP_CODE_FRAGMENT_REASSEMBLY_TIME_EXCEEDED;
|
|
break;
|
|
|
|
default:
|
|
ret->Timeout = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (ret->Timeout == false)
|
|
{
|
|
ret->Ttl = reply->Options.Ttl;
|
|
ret->Rtt = reply->RoundTripTime;
|
|
InAddrToIP(&ret->IpAddress, (struct in_addr *)&reply->Address);
|
|
|
|
if (reply->DataSize >= 1 && reply->Data != NULL)
|
|
{
|
|
ret->DataSize = reply->DataSize;
|
|
ret->Data = Clone(reply->Data, reply->DataSize);
|
|
}
|
|
}
|
|
|
|
Free(reply);
|
|
|
|
w32net->IcmpCloseHandle(h);
|
|
|
|
return ret;
|
|
}
|
|
else
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
#else // OS_WIN32
|
|
return NULL;
|
|
#endif // OS_WIN32
|
|
}
|
|
|
|
// Detect whether the ICMP API is supported
|
|
bool IsIcmpApiSupported()
|
|
{
|
|
#ifdef OS_WIN32
|
|
if (w32net->IcmpCloseHandle != NULL &&
|
|
w32net->IcmpCreateFile != NULL &&
|
|
w32net->IcmpSendEcho != NULL)
|
|
{
|
|
return true;
|
|
}
|
|
#endif // OS_WIN32
|
|
|
|
return false;
|
|
}
|
|
|
|
// Initialize the routing table change detector
|
|
ROUTE_CHANGE *NewRouteChange()
|
|
{
|
|
#ifdef OS_WIN32
|
|
return Win32NewRouteChange();
|
|
#else // OS_WIN32
|
|
return NULL;
|
|
#endif // OS_WIN32
|
|
}
|
|
|
|
// Release the routing table change detector
|
|
void FreeRouteChange(ROUTE_CHANGE *r)
|
|
{
|
|
#ifdef OS_WIN32
|
|
Win32FreeRouteChange(r);
|
|
#endif // OS_WIN32
|
|
}
|
|
|
|
// Get whether the routing table has been changed
|
|
bool IsRouteChanged(ROUTE_CHANGE *r)
|
|
{
|
|
#ifdef OS_WIN32
|
|
return Win32IsRouteChanged(r);
|
|
#else // OS_WIN32
|
|
return false;
|
|
#endif // OS_WIN32
|
|
}
|
|
|
|
// Routing table change detector function (Win32)
|
|
#ifdef OS_WIN32
|
|
ROUTE_CHANGE *Win32NewRouteChange()
|
|
{
|
|
ROUTE_CHANGE *r;
|
|
BOOL ret;
|
|
|
|
if (MsIsNt() == false)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
if (w32net->CancelIPChangeNotify == NULL ||
|
|
w32net->NotifyRouteChange == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
r = ZeroMalloc(sizeof(ROUTE_CHANGE));
|
|
|
|
r->Data = ZeroMalloc(sizeof(ROUTE_CHANGE_DATA));
|
|
|
|
r->Data->Overlapped.hEvent = CreateEventA(NULL, false, true, NULL);
|
|
|
|
ret = w32net->NotifyRouteChange(&r->Data->Handle, &r->Data->Overlapped);
|
|
if (!(ret == NO_ERROR || ret == WSA_IO_PENDING || WSAGetLastError() == WSA_IO_PENDING))
|
|
{
|
|
Free(r->Data);
|
|
Free(r);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
void Win32FreeRouteChange(ROUTE_CHANGE *r)
|
|
{
|
|
// Validate arguments
|
|
if (r == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
w32net->CancelIPChangeNotify(&r->Data->Overlapped);
|
|
CloseHandle(r->Data->Overlapped.hEvent);
|
|
|
|
Free(r->Data);
|
|
Free(r);
|
|
}
|
|
|
|
bool Win32IsRouteChanged(ROUTE_CHANGE *r)
|
|
{
|
|
// Validate arguments
|
|
if (r == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if ((r->Data->NumCalled++) == 0)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
if (WaitForSingleObject(r->Data->Overlapped.hEvent, 0) == WAIT_OBJECT_0)
|
|
{
|
|
w32net->NotifyRouteChange(&r->Data->Handle, &r->Data->Overlapped);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
typedef struct WIN32_ACCEPT_CHECK_DATA
|
|
{
|
|
bool IsIPv6;
|
|
bool Rejected;
|
|
} WIN32_ACCEPT_CHECK_DATA;
|
|
|
|
int CALLBACK Win32AcceptCheckCallback(LPWSABUF lpCallerId, LPWSABUF lpCallerData, LPQOS pQos,
|
|
LPQOS lpGQOS, LPWSABUF lpCalleeId, LPWSABUF lpCalleeData,
|
|
GROUP FAR *g, DWORD_PTR dwCallbackData)
|
|
{
|
|
return CF_ACCEPT;
|
|
}
|
|
|
|
// Accept function for Win32
|
|
SOCKET Win32Accept(SOCK *sock, SOCKET s, struct sockaddr *addr, int *addrlen, bool ipv6)
|
|
{
|
|
SOCKET ret;
|
|
WIN32_ACCEPT_CHECK_DATA d;
|
|
UINT err;
|
|
int initial_addrlen = *addrlen;
|
|
UINT num_error = 0;
|
|
UINT zero = 0;
|
|
UINT tmp = 0;
|
|
DWORD ret_size = 0;
|
|
// Validate arguments
|
|
if (sock == NULL || s == INVALID_SOCKET)
|
|
{
|
|
return INVALID_SOCKET;
|
|
}
|
|
|
|
if (sock->hAcceptEvent == NULL)
|
|
{
|
|
sock->hAcceptEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
|
|
|
|
WSAEventSelect(s, sock->hAcceptEvent, FD_ACCEPT | FD_CLOSE);
|
|
}
|
|
|
|
L_LOOP:
|
|
|
|
if (sock->CancelAccept)
|
|
{
|
|
return INVALID_SOCKET;
|
|
}
|
|
|
|
Zero(&d, sizeof(d));
|
|
|
|
d.IsIPv6 = ipv6;
|
|
|
|
*addrlen = initial_addrlen;
|
|
Zero(addr, initial_addrlen);
|
|
ret = WSAAccept(s, addr, addrlen, Win32AcceptCheckCallback, (DWORD_PTR)&d);
|
|
|
|
if (ret == INVALID_SOCKET)
|
|
{
|
|
err = WSAGetLastError();
|
|
|
|
if (err == WSAEWOULDBLOCK)
|
|
{
|
|
//Debug("!!! WSAAccept: WSAEWOULDBLOCK\n");
|
|
UINT wait_ret = WaitForSingleObject(sock->hAcceptEvent, 1234);
|
|
|
|
if (wait_ret == WAIT_OBJECT_0 || wait_ret == WAIT_TIMEOUT)
|
|
{
|
|
goto L_LOOP;
|
|
}
|
|
|
|
Debug("!!! WaitForSingleObject Error. ret=%u GetLastError=%u\n", wait_ret, GetLastError());
|
|
}
|
|
|
|
num_error++;
|
|
|
|
Debug("!!! WSAAccept Error: %u rej=%u num=%u tick=%I64u\n", err, d.Rejected, num_error, Tick64());
|
|
|
|
if (d.Rejected && err == WSAECONNREFUSED)
|
|
{
|
|
goto L_LOOP;
|
|
}
|
|
|
|
if (err == WSAETIMEDOUT)
|
|
{
|
|
goto L_LOOP;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Remove a new socket from the event
|
|
WSAEventSelect(ret, sock->hAcceptEvent, 0);
|
|
|
|
// Restore the new socket to synchronized
|
|
WSAIoctl(ret, FIONBIO, &zero, sizeof(zero), &tmp, sizeof(tmp), &ret_size, NULL, NULL);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
#endif // OS_WIN32
|
|
|
|
#define USE_OLD_GETIP
|
|
|
|
// Set the arp_filter in Linux
|
|
void SetLinuxArpFilter()
|
|
{
|
|
char *filename = "/proc/sys/net/ipv4/conf/all/arp_filter";
|
|
char *data = "1\n";
|
|
IO *o;
|
|
|
|
o = FileCreate(filename);
|
|
if (o == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
FileWrite(o, data, StrLen(data));
|
|
FileFlush(o);
|
|
|
|
FileClose(o);
|
|
}
|
|
|
|
// Determine whether the string is a IPv6 mask
|
|
bool IsIpMask6(char *str)
|
|
{
|
|
IP mask;
|
|
// Validate arguments
|
|
if (str == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
return StrToMask6(&mask, str);
|
|
}
|
|
|
|
// Determine whether the string is a IPv6 address
|
|
bool IsStrIPv6Address(char *str)
|
|
{
|
|
IP ip;
|
|
// Validate arguments
|
|
if (str == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (StrToIP6(&ip, str) == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
// Convert the subnet mask to an integer
|
|
UINT SubnetMaskToInt6(IP *a)
|
|
{
|
|
UINT i;
|
|
// Validate arguments
|
|
if (IsIP6(a) == false)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
for (i = 0; i <= 128; i++)
|
|
{
|
|
IP tmp;
|
|
|
|
IntToSubnetMask6(&tmp, i);
|
|
|
|
if (CmpIpAddr(a, &tmp) == 0)
|
|
{
|
|
return i;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
UINT SubnetMaskToInt4(IP *a)
|
|
{
|
|
UINT i;
|
|
// Validate arguments
|
|
if (IsIP4(a) == false)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
for (i = 0; i <= 32; i++)
|
|
{
|
|
IP tmp;
|
|
|
|
IntToSubnetMask4(&tmp, i);
|
|
|
|
if (CmpIpAddr(a, &tmp) == 0)
|
|
{
|
|
return i;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
UINT SubnetMaskToInt(IP *a)
|
|
{
|
|
if (IsIP6(a))
|
|
{
|
|
return SubnetMaskToInt6(a);
|
|
}
|
|
else
|
|
{
|
|
return SubnetMaskToInt4(a);
|
|
}
|
|
}
|
|
|
|
// Determine whether the specified IP address is a subnet mask
|
|
bool IsSubnetMask6(IP *a)
|
|
{
|
|
UINT i;
|
|
// Validate arguments
|
|
if (IsIP6(a) == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
for (i = 0; i <= 128; i++)
|
|
{
|
|
IP tmp;
|
|
|
|
IntToSubnetMask6(&tmp, i);
|
|
|
|
if (CmpIpAddr(a, &tmp) == 0)
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
// Generate a local address from the MAC address
|
|
void GenerateEui64LocalAddress(IP *a, UCHAR *mac)
|
|
{
|
|
UCHAR tmp[8];
|
|
// Validate arguments
|
|
if (a == NULL || mac == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
GenerateEui64Address6(tmp, mac);
|
|
|
|
ZeroIP6(a);
|
|
a->ipv6_addr[0] = 0xfe;
|
|
a->ipv6_addr[1] = 0x80;
|
|
|
|
Copy(&a->ipv6_addr[8], tmp, 8);
|
|
}
|
|
|
|
// Generate the EUI-64 address from the MAC address
|
|
void GenerateEui64Address6(UCHAR *dst, UCHAR *mac)
|
|
{
|
|
// Validate arguments
|
|
if (dst == NULL || mac == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Copy(dst, mac, 3);
|
|
Copy(dst + 5, mac, 3);
|
|
|
|
dst[3] = 0xff;
|
|
dst[4] = 0xfe;
|
|
dst[0] = ((~(dst[0] & 0x02)) & 0x02) | (dst[0] & 0xfd);
|
|
}
|
|
|
|
// Examine whether two IP addresses are in the same network
|
|
bool IsInSameNetwork6ByStr(char *ip1, char *ip2, char *subnet)
|
|
{
|
|
IP p1, p2, s;
|
|
|
|
if (StrToIP6(&p1, ip1) == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (StrToIP6(&p2, ip2) == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (StrToMask6(&s, subnet) == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
return IsInSameNetwork6(&p1, &p2, &s);
|
|
}
|
|
bool IsInSameNetwork6(IP *a1, IP *a2, IP *subnet)
|
|
{
|
|
IP prefix1, prefix2;
|
|
// Validate arguments
|
|
if (IsIP6(a1) == false || IsIP6(a2) == false || IsIP6(subnet) == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (a1->ipv6_scope_id != a2->ipv6_scope_id)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
GetPrefixAddress6(&prefix1, a1, subnet);
|
|
GetPrefixAddress6(&prefix2, a2, subnet);
|
|
|
|
if (CmpIpAddr(&prefix1, &prefix2) == 0)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
bool IsInSameNetwork4(IP *a1, IP *a2, IP *subnet)
|
|
{
|
|
IP net1, net2;
|
|
// Validate arguments
|
|
if (IsIP4(a1) == false || IsIP4(a2) == false || IsIP4(subnet) == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
IPAnd4(&net1, a1, subnet);
|
|
IPAnd4(&net2, a2, subnet);
|
|
|
|
if (CmpIpAddr(&net1, &net2) == 0)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
bool IsInSameNetwork4Standard(IP *a1, IP *a2)
|
|
{
|
|
IP subnet;
|
|
|
|
SetIP(&subnet, 255, 255, 0, 0);
|
|
|
|
return IsInSameNetwork4(a1, a2, &subnet);
|
|
}
|
|
|
|
// Get the prefix address
|
|
void GetPrefixAddress6(IP *dst, IP *ip, IP *subnet)
|
|
{
|
|
// Validate arguments
|
|
if (dst == NULL || ip == NULL || subnet == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
IPAnd6(dst, ip, subnet);
|
|
|
|
dst->ipv6_scope_id = ip->ipv6_scope_id;
|
|
}
|
|
|
|
// Get the type of the IPv6 address
|
|
UINT GetIPv6AddrType(IPV6_ADDR *addr)
|
|
{
|
|
IP ip;
|
|
// Validate arguments
|
|
if (addr == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
IPv6AddrToIP(&ip, addr);
|
|
|
|
return GetIPAddrType6(&ip);
|
|
}
|
|
UINT GetIPAddrType6(IP *ip)
|
|
{
|
|
UINT ret = 0;
|
|
// Validate arguments
|
|
if (IsIP6(ip) == false)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (ip->ipv6_addr[0] == 0xff)
|
|
{
|
|
IP all_node, all_router;
|
|
|
|
GetAllNodeMulticaseAddress6(&all_node);
|
|
|
|
GetAllRouterMulticastAddress6(&all_router);
|
|
|
|
ret |= IPV6_ADDR_MULTICAST;
|
|
|
|
if (Cmp(ip->ipv6_addr, all_node.ipv6_addr, 16) == 0)
|
|
{
|
|
ret |= IPV6_ADDR_ALL_NODE_MULTICAST;
|
|
}
|
|
else if (Cmp(ip->ipv6_addr, all_router.ipv6_addr, 16) == 0)
|
|
{
|
|
ret |= IPV6_ADDR_ALL_ROUTER_MULTICAST;
|
|
}
|
|
else
|
|
{
|
|
if (ip->ipv6_addr[1] == 0x02 && ip->ipv6_addr[2] == 0 && ip->ipv6_addr[3] == 0 &&
|
|
ip->ipv6_addr[4] == 0 && ip->ipv6_addr[5] == 0 && ip->ipv6_addr[6] == 0 &&
|
|
ip->ipv6_addr[7] == 0 && ip->ipv6_addr[8] == 0 && ip->ipv6_addr[9] == 0 &&
|
|
ip->ipv6_addr[10] == 0 && ip->ipv6_addr[11] == 0x01 && ip->ipv6_addr[12] == 0xff)
|
|
{
|
|
ret |= IPV6_ADDR_SOLICIATION_MULTICAST;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ret |= IPV6_ADDR_UNICAST;
|
|
|
|
if (ip->ipv6_addr[0] == 0xfe && (ip->ipv6_addr[1] & 0xc0) == 0x80)
|
|
{
|
|
ret |= IPV6_ADDR_LOCAL_UNICAST;
|
|
}
|
|
else
|
|
{
|
|
ret |= IPV6_ADDR_GLOBAL_UNICAST;
|
|
|
|
if (IsZero(&ip->ipv6_addr, 16))
|
|
{
|
|
ret |= IPV6_ADDR_ZERO;
|
|
}
|
|
else
|
|
{
|
|
IP loopback;
|
|
|
|
GetLoopbackAddress6(&loopback);
|
|
|
|
if (Cmp(ip->ipv6_addr, loopback.ipv6_addr, 16) == 0)
|
|
{
|
|
ret |= IPV6_ADDR_LOOPBACK;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Loopback address
|
|
void GetLoopbackAddress6(IP *ip)
|
|
{
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
ZeroIP6(ip);
|
|
|
|
ip->ipv6_addr[15] = 0x01;
|
|
}
|
|
|
|
// All-nodes multicast address
|
|
void GetAllNodeMulticaseAddress6(IP *ip)
|
|
{
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
ZeroIP6(ip);
|
|
|
|
ip->ipv6_addr[0] = 0xff;
|
|
ip->ipv6_addr[1] = 0x02;
|
|
ip->ipv6_addr[15] = 0x01;
|
|
}
|
|
|
|
// All-routers multicast address
|
|
void GetAllRouterMulticastAddress6(IP *ip)
|
|
{
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
ZeroIP6(ip);
|
|
|
|
ip->ipv6_addr[0] = 0xff;
|
|
ip->ipv6_addr[1] = 0x02;
|
|
ip->ipv6_addr[15] = 0x02;
|
|
}
|
|
|
|
// Logical operation of the IPv4 address
|
|
void IPAnd4(IP *dst, IP *a, IP *b)
|
|
{
|
|
UINT i;
|
|
// Validate arguments
|
|
if (dst == NULL || a == NULL || b == NULL || IsIP4(a) == false || IsIP4(b) == false)
|
|
{
|
|
Zero(dst, sizeof(IP));
|
|
return;
|
|
}
|
|
|
|
i = IPToUINT(a) & IPToUINT(b);
|
|
|
|
UINTToIP(dst, i);
|
|
}
|
|
|
|
// Logical operation of the IPv6 address
|
|
void IPAnd6(IP *dst, IP *a, IP *b)
|
|
{
|
|
UINT i;
|
|
// Validate arguments
|
|
if (dst == NULL || IsIP6(a) == false || IsIP6(b) == false)
|
|
{
|
|
ZeroIP6(dst);
|
|
return;
|
|
}
|
|
|
|
ZeroIP6(dst);
|
|
for (i = 0; i < 16; i++)
|
|
{
|
|
dst->ipv6_addr[i] = a->ipv6_addr[i] & b->ipv6_addr[i];
|
|
}
|
|
}
|
|
|
|
// Creating a subnet mask
|
|
void IntToSubnetMask6(IP *ip, UINT i)
|
|
{
|
|
UINT j = i / 8;
|
|
UINT k = i % 8;
|
|
UINT z;
|
|
IP a;
|
|
|
|
ZeroIP6(&a);
|
|
|
|
for (z = 0; z < 16; z++)
|
|
{
|
|
if (z < j)
|
|
{
|
|
a.ipv6_addr[z] = 0xff;
|
|
}
|
|
else if (z == j)
|
|
{
|
|
a.ipv6_addr[z] = ~(0xff >> k);
|
|
}
|
|
}
|
|
|
|
Copy(ip, &a, sizeof(IP));
|
|
}
|
|
|
|
// Convert the IP address to a string
|
|
void IP6AddrToStr(char *str, UINT size, IPV6_ADDR *addr)
|
|
{
|
|
// Validate arguments
|
|
if (str == NULL || addr == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
IPToStr6Array(str, size, addr->Value);
|
|
}
|
|
void IPToStr6Array(char *str, UINT size, UCHAR *bytes)
|
|
{
|
|
IP ip;
|
|
// Validate arguments
|
|
if (str == NULL || bytes == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
SetIP6(&ip, bytes);
|
|
|
|
IPToStr6(str, size, &ip);
|
|
}
|
|
void IPToStr6(char *str, UINT size, IP *ip)
|
|
{
|
|
char tmp[MAX_SIZE];
|
|
|
|
IPToStr6Inner(tmp, ip);
|
|
|
|
StrCpy(str, size, tmp);
|
|
}
|
|
void IPToStr6Inner(char *str, IP *ip)
|
|
{
|
|
UINT i;
|
|
USHORT values[8];
|
|
UINT zero_started_index;
|
|
UINT max_zero_len;
|
|
UINT max_zero_start;
|
|
IP a;
|
|
// Validate arguments
|
|
if (str == NULL || ip == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Copy(&a, ip, sizeof(IP));
|
|
|
|
for (i = 0; i < 8; i++)
|
|
{
|
|
Copy(&values[i], &a.ipv6_addr[i * 2], sizeof(USHORT));
|
|
values[i] = Endian16(values[i]);
|
|
}
|
|
|
|
// Search for omittable part
|
|
zero_started_index = INFINITE;
|
|
max_zero_len = 0;
|
|
max_zero_start = INFINITE;
|
|
for (i = 0; i < 9; i++)
|
|
{
|
|
USHORT v = (i != 8 ? values[i] : 1);
|
|
|
|
if (v == 0)
|
|
{
|
|
if (zero_started_index == INFINITE)
|
|
{
|
|
zero_started_index = i;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
UINT zero_len;
|
|
|
|
if (zero_started_index != INFINITE)
|
|
{
|
|
zero_len = i - zero_started_index;
|
|
if (zero_len >= 2)
|
|
{
|
|
if (max_zero_len < zero_len)
|
|
{
|
|
max_zero_start = zero_started_index;
|
|
max_zero_len = zero_len;
|
|
}
|
|
}
|
|
|
|
zero_started_index = INFINITE;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Format a string
|
|
StrCpy(str, 0, "");
|
|
for (i = 0; i < 8; i++)
|
|
{
|
|
char tmp[16];
|
|
|
|
ToHex(tmp, values[i]);
|
|
StrLower(tmp);
|
|
|
|
if (i == max_zero_start)
|
|
{
|
|
if (i == 0)
|
|
{
|
|
StrCat(str, 0, "::");
|
|
}
|
|
else
|
|
{
|
|
StrCat(str, 0, ":");
|
|
}
|
|
i += max_zero_len - 1;
|
|
}
|
|
else
|
|
{
|
|
StrCat(str, 0, tmp);
|
|
if (i != 7)
|
|
{
|
|
StrCat(str, 0, ":");
|
|
}
|
|
}
|
|
}
|
|
|
|
// Scope ID
|
|
if (ip->ipv6_scope_id != 0)
|
|
{
|
|
char tmp[64];
|
|
|
|
StrCat(str, 0, "%");
|
|
ToStr(tmp, ip->ipv6_scope_id);
|
|
|
|
StrCat(str, 0, tmp);
|
|
}
|
|
}
|
|
|
|
// Convert the string to an IP address
|
|
bool StrToIP6(IP *ip, char *str)
|
|
{
|
|
TOKEN_LIST *t;
|
|
char tmp[MAX_PATH];
|
|
IP a;
|
|
UINT i;
|
|
UINT scope_id = 0;
|
|
// Validate arguments
|
|
if (str == NULL || ip == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
ZeroIP6(&a);
|
|
|
|
StrCpy(tmp, sizeof(tmp), str);
|
|
Trim(tmp);
|
|
|
|
if (StartWith(tmp, "[") && EndWith(tmp, "]"))
|
|
{
|
|
// If the string is enclosed in square brackets, remove brackets
|
|
StrCpyAllowOverlap(tmp, sizeof(tmp), &tmp[1]);
|
|
|
|
if (StrLen(tmp) >= 1)
|
|
{
|
|
tmp[StrLen(tmp) - 1] = 0;
|
|
}
|
|
}
|
|
|
|
// Remove the scope ID by analyzing if there is it
|
|
i = SearchStrEx(tmp, "%", 0, false);
|
|
if (i != INFINITE)
|
|
{
|
|
char ss[MAX_PATH];
|
|
|
|
StrCpy(ss, sizeof(ss), &tmp[i + 1]);
|
|
|
|
tmp[i] = 0;
|
|
|
|
Trim(tmp);
|
|
|
|
Trim(ss);
|
|
|
|
scope_id = ToInt(ss);
|
|
}
|
|
|
|
// Tokenize
|
|
t = ParseTokenWithNullStr(tmp, ":");
|
|
if (t->NumTokens >= 3 && t->NumTokens <= 8)
|
|
{
|
|
UINT i, n;
|
|
bool b = true;
|
|
UINT k = 0;
|
|
|
|
n = 0;
|
|
|
|
for (i = 0; i < t->NumTokens; i++)
|
|
{
|
|
char *str = t->Token[i];
|
|
|
|
if (i != 0 && i != (t->NumTokens - 1) && StrLen(str) == 0)
|
|
{
|
|
n++;
|
|
if (n == 1)
|
|
{
|
|
k += 2 * (8 - t->NumTokens + 1);
|
|
}
|
|
else
|
|
{
|
|
b = false;
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
UCHAR chars[2];
|
|
|
|
if (CheckIPItemStr6(str) == false)
|
|
{
|
|
b = false;
|
|
break;
|
|
}
|
|
|
|
IPItemStrToChars6(chars, str);
|
|
|
|
a.ipv6_addr[k++] = chars[0];
|
|
a.ipv6_addr[k++] = chars[1];
|
|
}
|
|
}
|
|
|
|
if (n != 0 && n != 1)
|
|
{
|
|
b = false;
|
|
}
|
|
else if (n == 0 && t->NumTokens != 8)
|
|
{
|
|
b = false;
|
|
}
|
|
|
|
if (b == false)
|
|
{
|
|
FreeToken(t);
|
|
return false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
FreeToken(t);
|
|
return false;
|
|
}
|
|
|
|
FreeToken(t);
|
|
|
|
Copy(ip, &a, sizeof(IP));
|
|
|
|
ip->ipv6_scope_id = scope_id;
|
|
|
|
return true;
|
|
}
|
|
bool StrToIP6Addr(IPV6_ADDR *ip, char *str)
|
|
{
|
|
IP ip2;
|
|
// Validate arguments
|
|
if (ip == NULL || str == NULL)
|
|
{
|
|
Zero(ip, sizeof(IPV6_ADDR));
|
|
return false;
|
|
}
|
|
|
|
if (StrToIP6(&ip2, str) == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (IPToIPv6Addr(ip, &ip2) == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
// Convert an IP address character to the UCHAR type
|
|
void IPItemStrToChars6(UCHAR *chars, char *str)
|
|
{
|
|
char tmp[5];
|
|
BUF *b;
|
|
UINT len;
|
|
// Validate arguments
|
|
if (chars == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Zero(tmp, sizeof(tmp));
|
|
|
|
len = StrLen(str);
|
|
switch (len)
|
|
{
|
|
case 0:
|
|
tmp[0] = tmp[1] = tmp[2] = tmp[3] = '0';
|
|
break;
|
|
|
|
case 1:
|
|
tmp[0] = tmp[1] = tmp[2] = '0';
|
|
tmp[3] = str[0];
|
|
break;
|
|
|
|
case 2:
|
|
tmp[0] = tmp[1] = '0';
|
|
tmp[2] = str[0];
|
|
tmp[3] = str[1];
|
|
break;
|
|
|
|
case 3:
|
|
tmp[0] = '0';
|
|
tmp[1] = str[0];
|
|
tmp[2] = str[1];
|
|
tmp[3] = str[2];
|
|
break;
|
|
|
|
case 4:
|
|
tmp[0] = str[0];
|
|
tmp[1] = str[1];
|
|
tmp[2] = str[2];
|
|
tmp[3] = str[3];
|
|
break;
|
|
}
|
|
|
|
b = StrToBin(tmp);
|
|
|
|
chars[0] = ((UCHAR *)b->Buf)[0];
|
|
chars[1] = ((UCHAR *)b->Buf)[1];
|
|
|
|
FreeBuf(b);
|
|
}
|
|
|
|
// Check whether invalid characters are included in the element string of the IP address
|
|
bool CheckIPItemStr6(char *str)
|
|
{
|
|
UINT i, len;
|
|
// Validate arguments
|
|
if (str == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
len = StrLen(str);
|
|
if (len >= 5)
|
|
{
|
|
// Invalid length
|
|
return false;
|
|
}
|
|
|
|
for (i = 0; i < len; i++)
|
|
{
|
|
char c = str[i];
|
|
|
|
if ((c >= 'a' && c <= 'f') ||
|
|
(c >= 'A' && c <= 'F') ||
|
|
(c >= '0' && c <= '9'))
|
|
{
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
// Create an IPv4 address of all zero
|
|
void ZeroIP4(IP *ip)
|
|
{
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Zero(ip, sizeof(IP));
|
|
}
|
|
|
|
// Create an IPv6 address of all zero
|
|
void ZeroIP6(IP *ip)
|
|
{
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
SetIP6(ip, NULL);
|
|
}
|
|
|
|
// Get the IP address of the localhost
|
|
void GetLocalHostIP6(IP *ip)
|
|
{
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return;
|
|
}
|
|
ZeroIP6(ip);
|
|
|
|
ip->ipv6_addr[15] = 1;
|
|
}
|
|
void GetLocalHostIP4(IP *ip)
|
|
{
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
SetIP(ip, 127, 0, 0, 1);
|
|
}
|
|
|
|
// Check whether the specified address is a localhost
|
|
bool IsLocalHostIP6(IP *ip)
|
|
{
|
|
IP local;
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
if (IsIP6(ip) == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
GetLocalHostIP6(&local);
|
|
|
|
if (CmpIpAddr(&local, ip) == 0)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
bool IsLocalHostIP4(IP *ip)
|
|
{
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
if (IsIP4(ip) == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (ip->addr[0] == 127)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
bool IsLocalHostIP(IP *ip)
|
|
{
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (IsIP4(ip))
|
|
{
|
|
return IsLocalHostIP4(ip);
|
|
}
|
|
else
|
|
{
|
|
return IsLocalHostIP6(ip);
|
|
}
|
|
}
|
|
|
|
// Convert the IPV6_ADDR to an IP
|
|
void IPv6AddrToIP(IP *ip, IPV6_ADDR *addr)
|
|
{
|
|
// Validate arguments
|
|
if (ip == NULL || addr == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
SetIP6(ip, addr->Value);
|
|
}
|
|
|
|
// Convert the IP to an IPV6_ADDR
|
|
bool IPToIPv6Addr(IPV6_ADDR *addr, IP *ip)
|
|
{
|
|
UINT i;
|
|
// Validate arguments
|
|
if (addr == NULL || ip == NULL)
|
|
{
|
|
Zero(addr, sizeof(IPV6_ADDR));
|
|
return false;
|
|
}
|
|
|
|
if (IsIP6(ip) == false)
|
|
{
|
|
Zero(addr, sizeof(IPV6_ADDR));
|
|
return false;
|
|
}
|
|
|
|
for (i = 0; i < 16; i++)
|
|
{
|
|
addr->Value[i] = ip->ipv6_addr[i];
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
// Set an IPv6 address
|
|
void SetIP6(IP *ip, UCHAR *value)
|
|
{
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Zero(ip, sizeof(IP));
|
|
|
|
ip->addr[0] = 192;
|
|
ip->addr[1] = 0;
|
|
ip->addr[2] = 2;
|
|
ip->addr[3] = 254;
|
|
|
|
if (value != NULL)
|
|
{
|
|
UINT i;
|
|
|
|
for (i = 0; i < 16; i++)
|
|
{
|
|
ip->ipv6_addr[i] = value[i];
|
|
}
|
|
}
|
|
}
|
|
|
|
// Check whether the specified address is a IPv6 address
|
|
bool IsIP6(IP *ip)
|
|
{
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (ip->addr[0] == 192 && ip->addr[1] == 0 && ip->addr[2] == 2 && ip->addr[3] == 254)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
bool IsIP4(IP *ip)
|
|
{
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
return (IsIP6(ip) ? false : true);
|
|
}
|
|
|
|
// Copy the IP address
|
|
void CopyIP(IP *dst, IP *src)
|
|
{
|
|
Copy(dst, src, sizeof(IP));
|
|
}
|
|
|
|
// Utility functions about IP and MAC address types
|
|
// Identify whether the IP address is a normal unicast address
|
|
bool IsValidUnicastIPAddress4(IP *ip)
|
|
{
|
|
UINT i;
|
|
// Validate arguments
|
|
if (IsIP4(ip) == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (IsZeroIP(ip))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (ip->addr[0] >= 224 && ip->addr[0] <= 239)
|
|
{
|
|
// IPv4 Multicast
|
|
return false;
|
|
}
|
|
|
|
|
|
/// TODO: this is kinda incorrect, but for the correct parsing we need the netmask anyway
|
|
for (i = 0; i < 4; i++)
|
|
{
|
|
if (ip->addr[i] != 255)
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
bool IsValidUnicastIPAddressUINT4(UINT ip)
|
|
{
|
|
IP a;
|
|
|
|
UINTToIP(&a, ip);
|
|
|
|
return IsValidUnicastIPAddress4(&a);
|
|
}
|
|
|
|
bool IsValidUnicastIPAddress6(IP *ip)
|
|
{
|
|
UINT ipv6Type;
|
|
|
|
if (!IsIP6(ip))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (IsZeroIP(ip))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
ipv6Type = GetIPAddrType6(ip);
|
|
|
|
if (!(ipv6Type & IPV6_ADDR_LOCAL_UNICAST) &&
|
|
!(ipv6Type & IPV6_ADDR_GLOBAL_UNICAST))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
// Check whether the MAC address is valid
|
|
bool IsMacInvalid(UCHAR *mac)
|
|
{
|
|
UINT i;
|
|
// Validate arguments
|
|
if (mac == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
for (i = 0; i < 6; i++)
|
|
{
|
|
if (mac[i] != 0x00)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
// Check whether the MAC address is a broadcast address
|
|
bool IsMacBroadcast(UCHAR *mac)
|
|
{
|
|
UINT i;
|
|
// Validate arguments
|
|
if (mac == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
for (i = 0; i < 6; i++)
|
|
{
|
|
if (mac[i] != 0xff)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
// Check wether the MAC address is an IPv4 multicast or an IPv6 multicast
|
|
bool IsMacMulticast(UCHAR *mac)
|
|
{
|
|
// Validate arguments
|
|
if (mac == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (mac[0] == 0x01 &&
|
|
mac[1] == 0x00 &&
|
|
mac[2] == 0x5e)
|
|
{
|
|
// Multicast IPv4 and other IANA multicasts
|
|
return true;
|
|
}
|
|
|
|
if (mac[0] == 0x01)
|
|
{
|
|
// That's not a really reserved for multicast range, but it seems like anything with 0x01 is used as multicast anyway
|
|
// Remove or specify if it causes problems
|
|
return true;
|
|
}
|
|
|
|
if (mac[0] == 0x33 &&
|
|
mac[1] == 0x33)
|
|
{
|
|
// Multicast IPv6
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
// Check wether the MAC address is a unicast one
|
|
bool IsMacUnicast(UCHAR *mac)
|
|
{
|
|
// Validate arguments
|
|
if (mac == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (IsMacInvalid(mac))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (IsMacBroadcast(mac))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (IsMacMulticast(mac))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
// Get the number of clients connected from the specified IP address
|
|
UINT GetNumIpClient(IP *ip)
|
|
{
|
|
IP_CLIENT *c;
|
|
UINT ret = 0;
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
LockList(ip_clients);
|
|
{
|
|
c = SearchIpClient(ip);
|
|
|
|
if (c != NULL)
|
|
{
|
|
ret = c->NumConnections;
|
|
}
|
|
}
|
|
UnlockList(ip_clients);
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Add to the IP client entry
|
|
void AddIpClient(IP *ip)
|
|
{
|
|
IP_CLIENT *c;
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
LockList(ip_clients);
|
|
{
|
|
c = SearchIpClient(ip);
|
|
|
|
if (c == NULL)
|
|
{
|
|
c = ZeroMallocFast(sizeof(IP_CLIENT));
|
|
Copy(&c->IpAddress, ip, sizeof(IP));
|
|
c->NumConnections = 0;
|
|
|
|
Add(ip_clients, c);
|
|
}
|
|
|
|
c->NumConnections++;
|
|
}
|
|
UnlockList(ip_clients);
|
|
|
|
//Debug("AddIpClient: %r\n", ip);
|
|
}
|
|
|
|
// Remove from the IP client list
|
|
void DelIpClient(IP *ip)
|
|
{
|
|
IP_CLIENT *c;
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
LockList(ip_clients);
|
|
{
|
|
c = SearchIpClient(ip);
|
|
|
|
if (c != NULL)
|
|
{
|
|
c->NumConnections--;
|
|
|
|
if (c->NumConnections == 0)
|
|
{
|
|
Delete(ip_clients, c);
|
|
Free(c);
|
|
}
|
|
}
|
|
}
|
|
UnlockList(ip_clients);
|
|
|
|
//Debug("DelIpClient: %r\n", ip);
|
|
}
|
|
|
|
// Search for the IP client entry
|
|
IP_CLIENT *SearchIpClient(IP *ip)
|
|
{
|
|
IP_CLIENT t;
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
Zero(&t, sizeof(t));
|
|
Copy(&t.IpAddress, ip, sizeof(IP));
|
|
|
|
return Search(ip_clients, &t);
|
|
}
|
|
|
|
// Initialization of the client list
|
|
void InitIpClientList()
|
|
{
|
|
ip_clients = NewList(CompareIpClientList);
|
|
}
|
|
|
|
// Release of the client list
|
|
void FreeIpClientList()
|
|
{
|
|
UINT i;
|
|
|
|
for (i = 0; i < LIST_NUM(ip_clients); i++)
|
|
{
|
|
IP_CLIENT *c = LIST_DATA(ip_clients, i);
|
|
|
|
Free(c);
|
|
}
|
|
|
|
ReleaseList(ip_clients);
|
|
ip_clients = NULL;
|
|
}
|
|
|
|
// Comparison of the client list entries
|
|
int CompareIpClientList(void *p1, void *p2)
|
|
{
|
|
IP_CLIENT *c1, *c2;
|
|
if (p1 == NULL || p2 == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
c1 = *(IP_CLIENT **)p1;
|
|
c2 = *(IP_CLIENT **)p2;
|
|
if (c1 == NULL || c2 == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
return CmpIpAddr(&c1->IpAddress, &c2->IpAddress);
|
|
}
|
|
|
|
// Normalization of the MAC address
|
|
bool NormalizeMacAddress(char *dst, UINT size, char *src)
|
|
{
|
|
BUF *b;
|
|
bool ret = false;
|
|
// Validate arguments
|
|
if (dst == NULL || src == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
b = StrToBin(src);
|
|
|
|
if (b != NULL && b->Size == 6)
|
|
{
|
|
ret = true;
|
|
|
|
BinToStr(dst, size, b->Buf, b->Size);
|
|
}
|
|
|
|
FreeBuf(b);
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Identify whether the IP address is empty
|
|
bool IsZeroIP(IP *ip)
|
|
{
|
|
return IsZeroIp(ip);
|
|
}
|
|
bool IsZeroIp(IP *ip)
|
|
{
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
if (IsIP6(ip) == false)
|
|
{
|
|
return IsZero(ip->addr, sizeof(ip->addr));
|
|
}
|
|
else
|
|
{
|
|
return IsZero(ip->ipv6_addr, sizeof(ip->ipv6_addr));
|
|
}
|
|
}
|
|
bool IsZeroIP6Addr(IPV6_ADDR *addr)
|
|
{
|
|
// Validate arguments
|
|
if (addr == NULL)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
return IsZero(addr, sizeof(IPV6_ADDR));
|
|
}
|
|
|
|
// Examine whether the specified IP address is meaningful as a host
|
|
bool IsHostIPAddress4(IP *ip)
|
|
{
|
|
UINT a;
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
a = IPToUINT(ip);
|
|
|
|
if (a == 0 || a == 0xffffffff)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
bool IsHostIPAddress32(UINT ip)
|
|
{
|
|
IP p;
|
|
|
|
UINTToIP(&p, ip);
|
|
|
|
return IsHostIPAddress4(&p);
|
|
}
|
|
|
|
// Check whether the specified IP address and subnet mask indicates a network correctly
|
|
bool IsNetworkAddress4(IP *ip, IP *mask)
|
|
{
|
|
UINT a, b;
|
|
// Validate arguments
|
|
if (ip == NULL || mask == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (IsIP4(ip) == false || IsIP4(mask) == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (IsSubnetMask4(mask) == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
a = IPToUINT(ip);
|
|
b = IPToUINT(mask);
|
|
|
|
if ((a & b) == a)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
bool IsNetworkAddress32(UINT ip, UINT mask)
|
|
{
|
|
IP a, b;
|
|
|
|
UINTToIP(&a, ip);
|
|
UINTToIP(&b, mask);
|
|
|
|
return IsNetworkAddress4(&a, &b);
|
|
}
|
|
|
|
// Convert the integer to a subnet mask
|
|
UINT IntToSubnetMask32(UINT i)
|
|
{
|
|
UINT ret = 0xFFFFFFFF;
|
|
|
|
switch (i)
|
|
{
|
|
case 0:
|
|
ret = 0x00000000;
|
|
break;
|
|
case 1:
|
|
ret = 0x80000000;
|
|
break;
|
|
case 2:
|
|
ret = 0xC0000000;
|
|
break;
|
|
case 3:
|
|
ret = 0xE0000000;
|
|
break;
|
|
case 4:
|
|
ret = 0xF0000000;
|
|
break;
|
|
case 5:
|
|
ret = 0xF8000000;
|
|
break;
|
|
case 6:
|
|
ret = 0xFC000000;
|
|
break;
|
|
case 7:
|
|
ret = 0xFE000000;
|
|
break;
|
|
case 8:
|
|
ret = 0xFF000000;
|
|
break;
|
|
case 9:
|
|
ret = 0xFF800000;
|
|
break;
|
|
case 10:
|
|
ret = 0xFFC00000;
|
|
break;
|
|
case 11:
|
|
ret = 0xFFE00000;
|
|
break;
|
|
case 12:
|
|
ret = 0xFFF00000;
|
|
break;
|
|
case 13:
|
|
ret = 0xFFF80000;
|
|
break;
|
|
case 14:
|
|
ret = 0xFFFC0000;
|
|
break;
|
|
case 15:
|
|
ret = 0xFFFE0000;
|
|
break;
|
|
case 16:
|
|
ret = 0xFFFF0000;
|
|
break;
|
|
case 17:
|
|
ret = 0xFFFF8000;
|
|
break;
|
|
case 18:
|
|
ret = 0xFFFFC000;
|
|
break;
|
|
case 19:
|
|
ret = 0xFFFFE000;
|
|
break;
|
|
case 20:
|
|
ret = 0xFFFFF000;
|
|
break;
|
|
case 21:
|
|
ret = 0xFFFFF800;
|
|
break;
|
|
case 22:
|
|
ret = 0xFFFFFC00;
|
|
break;
|
|
case 23:
|
|
ret = 0xFFFFFE00;
|
|
break;
|
|
case 24:
|
|
ret = 0xFFFFFF00;
|
|
break;
|
|
case 25:
|
|
ret = 0xFFFFFF80;
|
|
break;
|
|
case 26:
|
|
ret = 0xFFFFFFC0;
|
|
break;
|
|
case 27:
|
|
ret = 0xFFFFFFE0;
|
|
break;
|
|
case 28:
|
|
ret = 0xFFFFFFF0;
|
|
break;
|
|
case 29:
|
|
ret = 0xFFFFFFF8;
|
|
break;
|
|
case 30:
|
|
ret = 0xFFFFFFFC;
|
|
break;
|
|
case 31:
|
|
ret = 0xFFFFFFFE;
|
|
break;
|
|
case 32:
|
|
ret = 0xFFFFFFFF;
|
|
break;
|
|
}
|
|
|
|
if (IsLittleEndian())
|
|
{
|
|
ret = Swap32(ret);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
void IntToSubnetMask4(IP *ip, UINT i)
|
|
{
|
|
UINT m;
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
m = IntToSubnetMask32(i);
|
|
|
|
UINTToIP(ip, m);
|
|
}
|
|
|
|
// Examine whether the specified IP address is a subnet mask
|
|
bool IsSubnetMask(IP *ip)
|
|
{
|
|
if (IsIP6(ip))
|
|
{
|
|
return IsSubnetMask6(ip);
|
|
}
|
|
else
|
|
{
|
|
return IsSubnetMask4(ip);
|
|
}
|
|
}
|
|
bool IsSubnetMask4(IP *ip)
|
|
{
|
|
UINT i;
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (IsIP6(ip))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
i = IPToUINT(ip);
|
|
|
|
if (IsLittleEndian())
|
|
{
|
|
i = Swap32(i);
|
|
}
|
|
|
|
switch (i)
|
|
{
|
|
case 0x00000000:
|
|
case 0x80000000:
|
|
case 0xC0000000:
|
|
case 0xE0000000:
|
|
case 0xF0000000:
|
|
case 0xF8000000:
|
|
case 0xFC000000:
|
|
case 0xFE000000:
|
|
case 0xFF000000:
|
|
case 0xFF800000:
|
|
case 0xFFC00000:
|
|
case 0xFFE00000:
|
|
case 0xFFF00000:
|
|
case 0xFFF80000:
|
|
case 0xFFFC0000:
|
|
case 0xFFFE0000:
|
|
case 0xFFFF0000:
|
|
case 0xFFFF8000:
|
|
case 0xFFFFC000:
|
|
case 0xFFFFE000:
|
|
case 0xFFFFF000:
|
|
case 0xFFFFF800:
|
|
case 0xFFFFFC00:
|
|
case 0xFFFFFE00:
|
|
case 0xFFFFFF00:
|
|
case 0xFFFFFF80:
|
|
case 0xFFFFFFC0:
|
|
case 0xFFFFFFE0:
|
|
case 0xFFFFFFF0:
|
|
case 0xFFFFFFF8:
|
|
case 0xFFFFFFFC:
|
|
case 0xFFFFFFFE:
|
|
case 0xFFFFFFFF:
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
bool IsSubnetMask32(UINT ip)
|
|
{
|
|
IP p;
|
|
|
|
UINTToIP(&p, ip);
|
|
|
|
return IsSubnetMask4(&p);
|
|
}
|
|
|
|
#ifdef OS_UNIX // Code for UNIX
|
|
|
|
// Turn on and off the non-blocking mode of the socket
|
|
void UnixSetSocketNonBlockingMode(int fd, bool nonblock)
|
|
{
|
|
UINT flag = 0;
|
|
// Validate arguments
|
|
if (fd == INVALID_SOCKET)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (nonblock)
|
|
{
|
|
flag = 1;
|
|
}
|
|
|
|
#ifdef FIONBIO
|
|
ioctl(fd, FIONBIO, &flag);
|
|
#else // FIONBIO
|
|
{
|
|
int flag = fcntl(fd, F_GETFL, 0);
|
|
if (flag != -1)
|
|
{
|
|
if (nonblock)
|
|
{
|
|
flag |= O_NONBLOCK;
|
|
}
|
|
else
|
|
{
|
|
flag = flag & ~O_NONBLOCK;
|
|
|
|
fcntl(fd, F_SETFL, flag);
|
|
}
|
|
}
|
|
}
|
|
#endif // FIONBIO
|
|
}
|
|
|
|
// Do Nothing
|
|
ROUTE_TABLE *UnixGetRouteTable()
|
|
{
|
|
ROUTE_TABLE *ret = ZeroMalloc(sizeof(ROUTE_TABLE));
|
|
ret->NumEntry = 0;
|
|
ret->Entry = ZeroMalloc(0);
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Do Nothing
|
|
bool UnixAddRouteEntry(ROUTE_ENTRY *e, bool *already_exists)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
// Do Nothing
|
|
void UnixDeleteRouteEntry(ROUTE_ENTRY *e)
|
|
{
|
|
return;
|
|
}
|
|
|
|
// Do Nothing
|
|
UINT UnixGetVLanInterfaceID(char *instance_name)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
// Do Nothing
|
|
char **UnixEnumVLan(char *tag_name)
|
|
{
|
|
char **list;
|
|
|
|
list = ZeroMalloc(sizeof(char *));
|
|
|
|
return list;
|
|
}
|
|
|
|
// Get the IP address of the default DNS server
|
|
bool UnixGetDefaultDns(IP *ip)
|
|
{
|
|
BUF *b;
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
Lock(unix_dns_server_addr_lock);
|
|
{
|
|
if (IsZero(&unix_dns_server, sizeof(IP)) == false)
|
|
{
|
|
Copy(ip, &unix_dns_server, sizeof(IP));
|
|
Unlock(unix_dns_server_addr_lock);
|
|
return true;
|
|
}
|
|
|
|
ip->addr[0] = 127;
|
|
ip->addr[1] = 0;
|
|
ip->addr[2] = 0;
|
|
ip->addr[3] = 1;
|
|
|
|
b = ReadDump("/etc/resolv.conf");
|
|
if (b != NULL)
|
|
{
|
|
char *s;
|
|
bool f = false;
|
|
while ((s = CfgReadNextLine(b)) != NULL)
|
|
{
|
|
TOKEN_LIST *t = ParseToken(s, "\" \t,");
|
|
if (t->NumTokens == 2)
|
|
{
|
|
if (StrCmpi(t->Token[0], "nameserver") == 0)
|
|
{
|
|
StrToIP(ip, t->Token[1]);
|
|
f = true;
|
|
}
|
|
}
|
|
FreeToken(t);
|
|
|
|
Free(s);
|
|
|
|
if (f)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
FreeBuf(b);
|
|
}
|
|
Copy(&unix_dns_server, ip, sizeof(IP));
|
|
}
|
|
Unlock(unix_dns_server_addr_lock);
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
// Select procedure
|
|
void UnixSelect(SOCKSET *set, UINT timeout, CANCEL *c1, CANCEL *c2)
|
|
{
|
|
UINT reads[MAXIMUM_WAIT_OBJECTS];
|
|
UINT writes[MAXIMUM_WAIT_OBJECTS];
|
|
UINT num_read, num_write, i;
|
|
UINT p1, p2;
|
|
SOCK_EVENT *sock_events[MAXIMUM_WAIT_OBJECTS];
|
|
UINT num_sock_events;
|
|
SOCK *s;
|
|
UCHAR tmp[MAX_SIZE];
|
|
int ret;
|
|
bool any_of_tubes_are_readable = false;
|
|
// Initialization of array
|
|
Zero(reads, sizeof(reads));
|
|
Zero(writes, sizeof(writes));
|
|
Zero(sock_events, sizeof(sock_events));
|
|
num_read = num_write = num_sock_events = 0;
|
|
|
|
// Setting the event array
|
|
if (set != NULL)
|
|
{
|
|
for (i = 0; i < set->NumSocket; i++)
|
|
{
|
|
s = set->Sock[i];
|
|
if (s != NULL)
|
|
{
|
|
UnixInitAsyncSocket(s);
|
|
if (s->Type == SOCK_INPROC)
|
|
{
|
|
TUBE *t = s->RecvTube;
|
|
if (t != NULL)
|
|
{
|
|
reads[num_read++] = t->SockEvent->pipe_read;
|
|
|
|
sock_events[num_sock_events++] = t->SockEvent;
|
|
|
|
if (t->SockEvent->current_pipe_data != 0)
|
|
{
|
|
any_of_tubes_are_readable = true;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (s->NoNeedToRead == false)
|
|
{
|
|
reads[num_read++] = s->socket;
|
|
}
|
|
}
|
|
|
|
if (s->BulkRecvTube != NULL)
|
|
{
|
|
TUBE *t = s->BulkRecvTube;
|
|
if (t != NULL)
|
|
{
|
|
reads[num_read++] = t->SockEvent->pipe_read;
|
|
|
|
sock_events[num_sock_events++] = t->SockEvent;
|
|
|
|
if (t->SockEvent->current_pipe_data != 0)
|
|
{
|
|
any_of_tubes_are_readable = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (s->WriteBlocked)
|
|
{
|
|
writes[num_write++] = s->socket;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (timeout == 0)
|
|
{
|
|
return;
|
|
}
|
|
|
|
p1 = p2 = -1;
|
|
|
|
if (c1 != NULL)
|
|
{
|
|
reads[num_read++] = p1 = c1->pipe_read;
|
|
|
|
if (c1->SpecialFlag)
|
|
{
|
|
if (c1->pipe_special_read2 != -1 && c1->pipe_special_read2 != 0)
|
|
{
|
|
reads[num_read++] = c1->pipe_special_read2;
|
|
}
|
|
|
|
if (c1->pipe_special_read3 != -1 && c1->pipe_special_read3 != 0)
|
|
{
|
|
reads[num_read++] = c1->pipe_special_read3;
|
|
}
|
|
}
|
|
}
|
|
if (c2 != NULL)
|
|
{
|
|
reads[num_read++] = p2 = c2->pipe_read;
|
|
|
|
if (c2->SpecialFlag)
|
|
{
|
|
if (c2->pipe_special_read2 != -1 && c2->pipe_special_read2 != 0)
|
|
{
|
|
reads[num_read++] = c2->pipe_special_read2;
|
|
}
|
|
|
|
if (c2->pipe_special_read3 != -1 && c2->pipe_special_read3 != 0)
|
|
{
|
|
reads[num_read++] = c2->pipe_special_read3;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Call the select
|
|
if (any_of_tubes_are_readable == false)
|
|
{
|
|
UnixSelectInner(num_read, reads, num_write, writes, timeout);
|
|
}
|
|
|
|
// Read from the pipe
|
|
if (c1 != NULL && c1->SpecialFlag == false && p1 != -1)
|
|
{
|
|
do
|
|
{
|
|
ret = read(p1, tmp, sizeof(tmp));
|
|
}
|
|
while (ret >= 1);
|
|
}
|
|
if (c2 != NULL && c2->SpecialFlag == false && p2 != -1)
|
|
{
|
|
do
|
|
{
|
|
ret = read(p2, tmp, sizeof(tmp));
|
|
}
|
|
while (ret >= 1);
|
|
}
|
|
|
|
// Read from the pipe of sockevent
|
|
for (i = 0; i < num_sock_events; i++)
|
|
{
|
|
SOCK_EVENT *e = sock_events[i];
|
|
|
|
e->current_pipe_data = 0;
|
|
|
|
do
|
|
{
|
|
ret = read(e->pipe_read, tmp, sizeof(tmp));
|
|
}
|
|
while (ret >= 1);
|
|
}
|
|
}
|
|
|
|
// Cancel
|
|
void UnixCancel(CANCEL *c)
|
|
{
|
|
// Validate arguments
|
|
if (c == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
UnixWritePipe(c->pipe_write);
|
|
}
|
|
|
|
// Release of the cancel object
|
|
void UnixCleanupCancel(CANCEL *c)
|
|
{
|
|
// Validate arguments
|
|
if (c == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (c->SpecialFlag == false)
|
|
{
|
|
UnixDeletePipe(c->pipe_read, c->pipe_write);
|
|
}
|
|
|
|
Free(c);
|
|
}
|
|
|
|
// Creating a new cancel object
|
|
CANCEL *UnixNewCancel()
|
|
{
|
|
CANCEL *c = ZeroMallocFast(sizeof(CANCEL));
|
|
|
|
c->ref = NewRef();
|
|
c->SpecialFlag = false;
|
|
|
|
UnixNewPipe(&c->pipe_read, &c->pipe_write);
|
|
|
|
c->pipe_special_read2 = c->pipe_special_read3 = -1;
|
|
|
|
return c;
|
|
}
|
|
|
|
// Add the socket to the socket event
|
|
void UnixJoinSockToSockEvent(SOCK *sock, SOCK_EVENT *event)
|
|
{
|
|
// Validate arguments
|
|
if (sock == NULL || event == NULL || sock->AsyncMode)
|
|
{
|
|
return;
|
|
}
|
|
if (sock->ListenMode != false || (sock->Type == SOCK_TCP && sock->Connected == false))
|
|
{
|
|
return;
|
|
}
|
|
|
|
sock->AsyncMode = true;
|
|
|
|
LockList(event->SockList);
|
|
{
|
|
Add(event->SockList, sock);
|
|
AddRef(sock->ref);
|
|
}
|
|
UnlockList(event->SockList);
|
|
|
|
// Make the socket asynchronous mode
|
|
if (sock->Type != SOCK_INPROC)
|
|
{
|
|
UnixSetSocketNonBlockingMode(sock->socket, true);
|
|
}
|
|
|
|
// Increase the reference count of the SOCK_EVENT
|
|
AddRef(event->ref);
|
|
sock->SockEvent = event;
|
|
|
|
// Set the socket event
|
|
SetSockEvent(event);
|
|
}
|
|
|
|
// Wait for a socket event
|
|
bool UnixWaitSockEvent(SOCK_EVENT *event, UINT timeout)
|
|
{
|
|
UINT num_read, num_write;
|
|
UINT *reads, *writes;
|
|
UINT n;
|
|
char tmp[MAX_SIZE];
|
|
int readret = 0;
|
|
bool event_pipe_is_readable = false;
|
|
// Validate arguments
|
|
if (event == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
LockList(event->SockList);
|
|
{
|
|
UINT i;
|
|
reads = ZeroMallocFast(sizeof(SOCK *) * (LIST_NUM(event->SockList) + 1));
|
|
|
|
num_write = 0;
|
|
num_read = 0;
|
|
|
|
for (i = 0; i < LIST_NUM(event->SockList); i++)
|
|
{
|
|
SOCK *s = LIST_DATA(event->SockList, i);
|
|
|
|
if (s->NoNeedToRead == false)
|
|
{
|
|
reads[num_read++] = s->socket;
|
|
}
|
|
|
|
if (s->WriteBlocked)
|
|
{
|
|
num_write++;
|
|
}
|
|
}
|
|
|
|
reads[num_read++] = event->pipe_read;
|
|
|
|
if (event->current_pipe_data != 0)
|
|
{
|
|
event_pipe_is_readable = true;
|
|
}
|
|
|
|
writes = ZeroMallocFast(sizeof(SOCK *) * num_write);
|
|
|
|
n = 0;
|
|
|
|
for (i = 0; i < (num_read - 1); i++)
|
|
{
|
|
SOCK *s = LIST_DATA(event->SockList, i);
|
|
if (s->WriteBlocked)
|
|
{
|
|
writes[n++] = s->socket;
|
|
}
|
|
}
|
|
}
|
|
UnlockList(event->SockList);
|
|
|
|
if (event_pipe_is_readable == false)
|
|
{
|
|
UnixSelectInner(num_read, reads, num_write, writes, timeout);
|
|
}
|
|
|
|
event->current_pipe_data = 0;
|
|
do
|
|
{
|
|
readret = read(event->pipe_read, tmp, sizeof(tmp));
|
|
}
|
|
while (readret >= 1);
|
|
|
|
Free(reads);
|
|
Free(writes);
|
|
|
|
return true;
|
|
}
|
|
|
|
// Set the socket event
|
|
void UnixSetSockEvent(SOCK_EVENT *event)
|
|
{
|
|
// Validate arguments
|
|
if (event == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (event->current_pipe_data <= 100)
|
|
{
|
|
UnixWritePipe(event->pipe_write);
|
|
event->current_pipe_data++;
|
|
}
|
|
}
|
|
|
|
// This is a helper function for select()
|
|
int safe_fd_set(int fd, fd_set *fds, int *max_fd) {
|
|
FD_SET(fd, fds);
|
|
if (fd > *max_fd) {
|
|
*max_fd = fd;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
// Execute 'select' for the socket
|
|
void UnixSelectInner(UINT num_read, UINT *reads, UINT num_write, UINT *writes, UINT timeout)
|
|
{
|
|
#ifdef UNIX_MACOS
|
|
fd_set rfds; //read descriptors
|
|
fd_set wfds; //write descriptors
|
|
int max_fd = 0; //maximum descriptor id
|
|
struct timeval tv; //timeval for timeout
|
|
#else // UNIX_MACOS
|
|
struct pollfd *p;
|
|
#endif // UNIX_MACOS
|
|
UINT num;
|
|
UINT i;
|
|
UINT n;
|
|
UINT num_read_total, num_write_total;
|
|
|
|
if (num_read != 0 && reads == NULL)
|
|
{
|
|
num_read = 0;
|
|
}
|
|
if (num_write != 0 && writes == NULL)
|
|
{
|
|
num_write = 0;
|
|
}
|
|
|
|
if (timeout == 0)
|
|
{
|
|
return;
|
|
}
|
|
|
|
num_read_total = num_write_total = 0;
|
|
for (i = 0; i < num_read; i++)
|
|
{
|
|
if (reads[i] != INVALID_SOCKET)
|
|
{
|
|
num_read_total++;
|
|
}
|
|
}
|
|
for (i = 0; i < num_write; i++)
|
|
{
|
|
if (writes[i] != INVALID_SOCKET)
|
|
{
|
|
num_write_total++;
|
|
}
|
|
}
|
|
|
|
num = num_read_total + num_write_total;
|
|
#ifdef UNIX_MACOS
|
|
FD_ZERO(&rfds); //zero out descriptor set for read descriptors
|
|
FD_ZERO(&wfds); //same for write
|
|
#else // UNIX_MACOS
|
|
p = ZeroMallocFast(sizeof(struct pollfd) * num);
|
|
#endif // UNIX_MACOS
|
|
|
|
n = 0;
|
|
|
|
for (i = 0; i < num_read; i++)
|
|
{
|
|
if (reads[i] != INVALID_SOCKET)
|
|
{
|
|
#ifdef UNIX_MACOS
|
|
safe_fd_set(reads[i], &rfds, &max_fd);
|
|
#else // UNIX_MACOS
|
|
struct pollfd *pfd = &p[n++];
|
|
pfd->fd = reads[i];
|
|
pfd->events = POLLIN | POLLPRI | POLLERR | POLLHUP;
|
|
#endif // UNIX_MACOS
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < num_write; i++)
|
|
{
|
|
if (writes[i] != INVALID_SOCKET)
|
|
{
|
|
#ifdef UNIX_MACOS
|
|
safe_fd_set(writes[i], &wfds, &max_fd);
|
|
#else // UNIX_MACOS
|
|
struct pollfd *pfd = &p[n++];
|
|
pfd->fd = writes[i];
|
|
pfd->events = POLLIN | POLLPRI | POLLERR | POLLHUP | POLLOUT;
|
|
#endif // UNIX_MACOS
|
|
}
|
|
}
|
|
|
|
if (num != 0)
|
|
{
|
|
#ifdef UNIX_MACOS
|
|
tv.tv_sec = timeout / 1000;
|
|
tv.tv_usec = (timeout % 1000) * 1000l;
|
|
select(max_fd + 1, &rfds, &wfds, NULL, timeout == INFINITE ? NULL : &tv);
|
|
#else // UNIX_MACOS
|
|
(void)poll(p, num, timeout == INFINITE ? -1 : (int)timeout);
|
|
#endif // UNIX_MACOS
|
|
}
|
|
else
|
|
{
|
|
SleepThread(timeout);
|
|
}
|
|
|
|
#ifndef UNIX_MACOS
|
|
Free(p);
|
|
#endif // not UNIX_MACOS
|
|
}
|
|
|
|
// Clean-up of the socket event
|
|
void UnixCleanupSockEvent(SOCK_EVENT *event)
|
|
{
|
|
UINT i;
|
|
// Validate arguments
|
|
if (event == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < LIST_NUM(event->SockList); i++)
|
|
{
|
|
SOCK *s = LIST_DATA(event->SockList, i);
|
|
|
|
ReleaseSock(s);
|
|
}
|
|
|
|
ReleaseList(event->SockList);
|
|
|
|
UnixDeletePipe(event->pipe_read, event->pipe_write);
|
|
|
|
Free(event);
|
|
}
|
|
|
|
// Create a socket event
|
|
SOCK_EVENT *UnixNewSockEvent()
|
|
{
|
|
SOCK_EVENT *e = ZeroMallocFast(sizeof(SOCK_EVENT));
|
|
|
|
e->SockList = NewList(NULL);
|
|
e->ref = NewRef();
|
|
|
|
UnixNewPipe(&e->pipe_read, &e->pipe_write);
|
|
|
|
return e;
|
|
}
|
|
|
|
// Close the pipe
|
|
void UnixDeletePipe(int p1, int p2)
|
|
{
|
|
if (p1 != -1)
|
|
{
|
|
close(p1);
|
|
}
|
|
|
|
if (p2 != -1)
|
|
{
|
|
close(p2);
|
|
}
|
|
}
|
|
|
|
// Write to the pipe
|
|
void UnixWritePipe(int pipe_write)
|
|
{
|
|
char c = 1;
|
|
write(pipe_write, &c, 1);
|
|
}
|
|
|
|
// Create a new pipe
|
|
void UnixNewPipe(int *pipe_read, int *pipe_write)
|
|
{
|
|
int fd[2];
|
|
// Validate arguments
|
|
if (pipe_read == NULL || pipe_write == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
fd[0] = fd[1] = 0;
|
|
|
|
pipe(fd);
|
|
|
|
*pipe_read = fd[0];
|
|
*pipe_write = fd[1];
|
|
|
|
UnixSetSocketNonBlockingMode(*pipe_write, true);
|
|
UnixSetSocketNonBlockingMode(*pipe_read, true);
|
|
}
|
|
|
|
// Release the asynchronous socket
|
|
void UnixFreeAsyncSocket(SOCK *sock)
|
|
{
|
|
UINT p;
|
|
// Validate arguments
|
|
if (sock == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Lock(sock->lock);
|
|
{
|
|
if (sock->AsyncMode == false)
|
|
{
|
|
Unlock(sock->lock);
|
|
return;
|
|
}
|
|
|
|
sock->AsyncMode = false;
|
|
|
|
// Examine whether this socket are associated to SockEvent
|
|
if (sock->SockEvent != NULL)
|
|
{
|
|
SOCK_EVENT *e = sock->SockEvent;
|
|
|
|
AddRef(e->ref);
|
|
|
|
p = e->pipe_write;
|
|
LockList(e->SockList);
|
|
{
|
|
if (Delete(e->SockList, sock))
|
|
{
|
|
ReleaseSock(sock);
|
|
}
|
|
}
|
|
UnlockList(e->SockList);
|
|
|
|
// Release the socket event
|
|
ReleaseSockEvent(sock->SockEvent);
|
|
sock->SockEvent = NULL;
|
|
|
|
SetSockEvent(e);
|
|
|
|
ReleaseSockEvent(e);
|
|
}
|
|
}
|
|
Unlock(sock->lock);
|
|
}
|
|
|
|
// Set the socket to asynchronous mode
|
|
void UnixInitAsyncSocket(SOCK *sock)
|
|
{
|
|
// Validate arguments
|
|
if (sock == NULL)
|
|
{
|
|
return;
|
|
}
|
|
if (sock->AsyncMode)
|
|
{
|
|
// The socket has been set in asynchronous mode already
|
|
return;
|
|
}
|
|
if (sock->ListenMode != false || ((sock->Type == SOCK_TCP || sock->Type == SOCK_INPROC) && sock->Connected == false))
|
|
{
|
|
return;
|
|
}
|
|
|
|
sock->AsyncMode = true;
|
|
|
|
if (sock->Type != SOCK_INPROC)
|
|
{
|
|
UnixSetSocketNonBlockingMode(sock->socket, true);
|
|
}
|
|
|
|
#if OPENSSL_VERSION_NUMBER < 0x10100000L
|
|
if (sock->ssl != NULL && sock->ssl->s3 != NULL)
|
|
{
|
|
sock->Ssl_Init_Async_SendAlert[0] = sock->ssl->s3->send_alert[0];
|
|
sock->Ssl_Init_Async_SendAlert[1] = sock->ssl->s3->send_alert[1];
|
|
}
|
|
#endif
|
|
}
|
|
|
|
// Initializing the socket library
|
|
void UnixInitSocketLibrary()
|
|
{
|
|
// Do not do anything special
|
|
}
|
|
|
|
// Release of the socket library
|
|
void UnixFreeSocketLibrary()
|
|
{
|
|
// Do not do anything special
|
|
}
|
|
|
|
#endif // OS_UNIX
|
|
|
|
#ifdef OS_WIN32 // Code for Windows
|
|
|
|
NETWORK_WIN32_FUNCTIONS *w32net;
|
|
|
|
// Comparison of IP_ADAPTER_INDEX_MAP
|
|
int CompareIpAdapterIndexMap(void *p1, void *p2)
|
|
{
|
|
IP_ADAPTER_INDEX_MAP *a1, *a2;
|
|
if (p1 == NULL || p2 == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
a1 = *(IP_ADAPTER_INDEX_MAP **)p1;
|
|
a2 = *(IP_ADAPTER_INDEX_MAP **)p2;
|
|
if (a1 == NULL || a2 == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (a1->Index > a2->Index)
|
|
{
|
|
return 1;
|
|
}
|
|
else if (a1->Index < a2->Index)
|
|
{
|
|
return -1;
|
|
}
|
|
else
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
// Update the IP address of the adapter
|
|
bool Win32RenewAddressByGuid(char *guid)
|
|
{
|
|
IP_ADAPTER_INDEX_MAP a;
|
|
// Validate arguments
|
|
if (guid == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
Zero(&a, sizeof(a));
|
|
if (Win32GetAdapterFromGuid(&a, guid) == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
return Win32RenewAddress(&a);
|
|
}
|
|
bool Win32RenewAddress(void *a)
|
|
{
|
|
DWORD ret;
|
|
// Validate arguments
|
|
if (a == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
if (w32net->IpRenewAddress == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
ret = w32net->IpRenewAddress(a);
|
|
|
|
if (ret == NO_ERROR)
|
|
{
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
Debug("IpRenewAddress: Error: %u\n", ret);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Release the IP address of the adapter
|
|
bool Win32ReleaseAddress(void *a)
|
|
{
|
|
DWORD ret;
|
|
// Validate arguments
|
|
if (a == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
if (w32net->IpReleaseAddress == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
ret = w32net->IpReleaseAddress(a);
|
|
|
|
if (ret == NO_ERROR)
|
|
{
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
Debug("IpReleaseAddress: Error: %u\n", ret);
|
|
return false;
|
|
}
|
|
}
|
|
bool Win32ReleaseAddressByGuid(char *guid)
|
|
{
|
|
IP_ADAPTER_INDEX_MAP a;
|
|
// Validate arguments
|
|
if (guid == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
Zero(&a, sizeof(a));
|
|
if (Win32GetAdapterFromGuid(&a, guid) == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
return Win32ReleaseAddress(&a);
|
|
}
|
|
void Win32ReleaseAddressByGuidExThread(THREAD *t, void *param)
|
|
{
|
|
WIN32_RELEASEADDRESS_THREAD_PARAM *p;
|
|
// Validate arguments
|
|
if (t == NULL || param == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
p = (WIN32_RELEASEADDRESS_THREAD_PARAM *)param;
|
|
|
|
AddRef(p->Ref);
|
|
|
|
NoticeThreadInit(t);
|
|
|
|
AddWaitThread(t);
|
|
|
|
if (p->Renew == false)
|
|
{
|
|
p->Ok = Win32ReleaseAddressByGuid(p->Guid);
|
|
}
|
|
else
|
|
{
|
|
p->Ok = Win32RenewAddressByGuid(p->Guid);
|
|
}
|
|
|
|
ReleaseWin32ReleaseAddressByGuidThreadParam(p);
|
|
|
|
DelWaitThread(t);
|
|
}
|
|
bool Win32RenewAddressByGuidEx(char *guid, UINT timeout)
|
|
{
|
|
return Win32ReleaseOrRenewAddressByGuidEx(guid, timeout, true);
|
|
}
|
|
bool Win32ReleaseAddressByGuidEx(char *guid, UINT timeout)
|
|
{
|
|
return Win32ReleaseOrRenewAddressByGuidEx(guid, timeout, false);
|
|
}
|
|
bool Win32ReleaseOrRenewAddressByGuidEx(char *guid, UINT timeout, bool renew)
|
|
{
|
|
THREAD *t;
|
|
WIN32_RELEASEADDRESS_THREAD_PARAM *p;
|
|
bool ret = false;
|
|
UINT64 start_tick = 0;
|
|
UINT64 end_tick = 0;
|
|
// Validate arguments
|
|
if (guid == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
if (timeout == 0)
|
|
{
|
|
timeout = INFINITE;
|
|
}
|
|
|
|
p = ZeroMalloc(sizeof(WIN32_RELEASEADDRESS_THREAD_PARAM));
|
|
p->Ref = NewRef();
|
|
StrCpy(p->Guid, sizeof(p->Guid), guid);
|
|
p->Timeout = timeout;
|
|
p->Renew = renew;
|
|
|
|
t = NewThread(Win32ReleaseAddressByGuidExThread, p);
|
|
WaitThreadInit(t);
|
|
start_tick = Tick64();
|
|
end_tick = start_tick + (UINT64)timeout;
|
|
|
|
while (true)
|
|
{
|
|
UINT64 now = Tick64();
|
|
UINT64 remain;
|
|
UINT remain32;
|
|
|
|
if (now >= end_tick)
|
|
{
|
|
break;
|
|
}
|
|
|
|
remain = end_tick - now;
|
|
remain32 = MIN((UINT)remain, 100);
|
|
|
|
if (WaitThread(t, remain32))
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
ReleaseThread(t);
|
|
|
|
if (p->Ok)
|
|
{
|
|
ret = true;
|
|
}
|
|
|
|
ReleaseWin32ReleaseAddressByGuidThreadParam(p);
|
|
|
|
return ret;
|
|
}
|
|
void ReleaseWin32ReleaseAddressByGuidThreadParam(WIN32_RELEASEADDRESS_THREAD_PARAM *p)
|
|
{
|
|
// Validate arguments
|
|
if (p == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (Release(p->Ref) == 0)
|
|
{
|
|
Free(p);
|
|
}
|
|
}
|
|
|
|
// Get the adapter by the GUID
|
|
bool Win32GetAdapterFromGuid(void *a, char *guid)
|
|
{
|
|
bool ret = false;
|
|
IP_INTERFACE_INFO *info;
|
|
ULONG size;
|
|
int i;
|
|
LIST *o;
|
|
wchar_t tmp[MAX_SIZE];
|
|
|
|
// Validate arguments
|
|
if (a == NULL || guid == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
if (w32net->GetInterfaceInfo == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
UniFormat(tmp, sizeof(tmp), L"\\DEVICE\\TCPIP_%S", guid);
|
|
|
|
size = sizeof(IP_INTERFACE_INFO);
|
|
info = ZeroMallocFast(size);
|
|
|
|
if (w32net->GetInterfaceInfo(info, &size) == ERROR_INSUFFICIENT_BUFFER)
|
|
{
|
|
Free(info);
|
|
info = ZeroMallocFast(size);
|
|
}
|
|
|
|
if (w32net->GetInterfaceInfo(info, &size) != NO_ERROR)
|
|
{
|
|
Free(info);
|
|
return false;
|
|
}
|
|
|
|
o = NewListFast(CompareIpAdapterIndexMap);
|
|
|
|
for (i = 0; i < info->NumAdapters; i++)
|
|
{
|
|
IP_ADAPTER_INDEX_MAP *a = &info->Adapter[i];
|
|
|
|
Add(o, a);
|
|
}
|
|
|
|
Sort(o);
|
|
|
|
for (i = 0; i < (int)(LIST_NUM(o)); i++)
|
|
{
|
|
IP_ADAPTER_INDEX_MAP *e = LIST_DATA(o, i);
|
|
|
|
if (UniStrCmpi(e->Name, tmp) == 0)
|
|
{
|
|
Copy(a, e, sizeof(IP_ADAPTER_INDEX_MAP));
|
|
ret = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
ReleaseList(o);
|
|
|
|
Free(info);
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Clear the DNS cache on Win32
|
|
void Win32FlushDnsCache()
|
|
{
|
|
Run("ipconfig.exe", "/flushdns", true, false);
|
|
}
|
|
|
|
// Update the DHCP address of the specified LAN card
|
|
void Win32RenewDhcp9x(UINT if_id)
|
|
{
|
|
IP_INTERFACE_INFO *info;
|
|
ULONG size;
|
|
int i;
|
|
LIST *o;
|
|
// Validate arguments
|
|
if (if_id == 0)
|
|
{
|
|
return;
|
|
}
|
|
|
|
size = sizeof(IP_INTERFACE_INFO);
|
|
info = ZeroMallocFast(size);
|
|
|
|
if (w32net->GetInterfaceInfo(info, &size) == ERROR_INSUFFICIENT_BUFFER)
|
|
{
|
|
Free(info);
|
|
info = ZeroMallocFast(size);
|
|
}
|
|
|
|
if (w32net->GetInterfaceInfo(info, &size) != NO_ERROR)
|
|
{
|
|
Free(info);
|
|
return;
|
|
}
|
|
|
|
o = NewListFast(CompareIpAdapterIndexMap);
|
|
|
|
for (i = 0; i < info->NumAdapters; i++)
|
|
{
|
|
IP_ADAPTER_INDEX_MAP *a = &info->Adapter[i];
|
|
|
|
Add(o, a);
|
|
}
|
|
|
|
Sort(o);
|
|
|
|
for (i = 0; i < (int)(LIST_NUM(o)); i++)
|
|
{
|
|
IP_ADAPTER_INDEX_MAP *a = LIST_DATA(o, i);
|
|
|
|
if (a->Index == if_id)
|
|
{
|
|
char arg[MAX_PATH];
|
|
Format(arg, sizeof(arg), "/renew %u", i);
|
|
Run("ipconfig.exe", arg, true, false);
|
|
}
|
|
}
|
|
|
|
ReleaseList(o);
|
|
|
|
Free(info);
|
|
}
|
|
|
|
// Release the DHCP address of the specified LAN card
|
|
void Win32ReleaseDhcp9x(UINT if_id, bool wait)
|
|
{
|
|
IP_INTERFACE_INFO *info;
|
|
ULONG size;
|
|
int i;
|
|
LIST *o;
|
|
// Validate arguments
|
|
if (if_id == 0)
|
|
{
|
|
return;
|
|
}
|
|
|
|
size = sizeof(IP_INTERFACE_INFO);
|
|
info = ZeroMallocFast(size);
|
|
|
|
if (w32net->GetInterfaceInfo(info, &size) == ERROR_INSUFFICIENT_BUFFER)
|
|
{
|
|
Free(info);
|
|
info = ZeroMallocFast(size);
|
|
}
|
|
|
|
if (w32net->GetInterfaceInfo(info, &size) != NO_ERROR)
|
|
{
|
|
Free(info);
|
|
return;
|
|
}
|
|
|
|
o = NewListFast(CompareIpAdapterIndexMap);
|
|
|
|
for (i = 0; i < info->NumAdapters; i++)
|
|
{
|
|
IP_ADAPTER_INDEX_MAP *a = &info->Adapter[i];
|
|
|
|
Add(o, a);
|
|
}
|
|
|
|
Sort(o);
|
|
|
|
for (i = 0; i < (int)(LIST_NUM(o)); i++)
|
|
{
|
|
IP_ADAPTER_INDEX_MAP *a = LIST_DATA(o, i);
|
|
|
|
if (a->Index == if_id)
|
|
{
|
|
char arg[MAX_PATH];
|
|
Format(arg, sizeof(arg), "/release %u", i);
|
|
Run("ipconfig.exe", arg, true, wait);
|
|
}
|
|
}
|
|
|
|
ReleaseList(o);
|
|
|
|
Free(info);
|
|
}
|
|
|
|
// Enumerate a list of virtual LAN cards that contains the specified string
|
|
char **Win32EnumVLan(char *tag_name)
|
|
{
|
|
MIB_IFTABLE *p;
|
|
UINT ret;
|
|
ULONG size_needed;
|
|
UINT num_retry = 0;
|
|
UINT i;
|
|
LIST *o;
|
|
char **ss;
|
|
// Validate arguments
|
|
if (tag_name == 0)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
RETRY:
|
|
p = ZeroMallocFast(sizeof(MIB_IFTABLE));
|
|
size_needed = 0;
|
|
|
|
// Examine the needed size
|
|
ret = w32net->GetIfTable(p, &size_needed, 0);
|
|
if (ret == ERROR_INSUFFICIENT_BUFFER)
|
|
{
|
|
// Re-allocate the memory block of the needed size
|
|
Free(p);
|
|
p = ZeroMallocFast(size_needed);
|
|
}
|
|
else if (ret != NO_ERROR)
|
|
{
|
|
// Acquisition failure
|
|
FAILED:
|
|
Free(p);
|
|
return NULL;
|
|
}
|
|
|
|
// Actually get
|
|
ret = w32net->GetIfTable(p, &size_needed, FALSE);
|
|
if (ret != NO_ERROR)
|
|
{
|
|
// Acquisition failure
|
|
if ((++num_retry) >= 5)
|
|
{
|
|
goto FAILED;
|
|
}
|
|
Free(p);
|
|
goto RETRY;
|
|
}
|
|
|
|
// Search
|
|
ret = 0;
|
|
o = NewListFast(CompareStr);
|
|
for (i = 0; i < p->dwNumEntries; i++)
|
|
{
|
|
MIB_IFROW *r = &p->table[i];
|
|
if (SearchStrEx(r->bDescr, tag_name, 0, false) != INFINITE)
|
|
{
|
|
char *s = CopyStr(r->bDescr);
|
|
Add(o, s);
|
|
}
|
|
}
|
|
|
|
Free(p);
|
|
|
|
// Sort
|
|
Sort(o);
|
|
|
|
// Convert to string
|
|
ss = ZeroMallocFast(sizeof(char *) * (LIST_NUM(o) + 1));
|
|
for (i = 0; i < LIST_NUM(o); i++)
|
|
{
|
|
ss[i] = LIST_DATA(o, i);
|
|
}
|
|
ss[LIST_NUM(o)] = NULL;
|
|
|
|
ReleaseList(o);
|
|
|
|
return ss;
|
|
}
|
|
|
|
// Get the ID of the virtual LAN card from the instance name of the virtual LAN card
|
|
UINT Win32GetVLanInterfaceID(char *instance_name)
|
|
{
|
|
MIB_IFTABLE *p;
|
|
BOOL ret;
|
|
ULONG size_needed;
|
|
UINT num_retry = 0;
|
|
UINT i;
|
|
char ps_miniport_str[MAX_SIZE];
|
|
char ps_miniport_str2[MAX_SIZE];
|
|
UINT min_len = 0x7FFFFFFF;
|
|
// Validate arguments
|
|
if (instance_name == 0)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
RETRY:
|
|
p = ZeroMallocFast(sizeof(MIB_IFTABLE));
|
|
size_needed = 0;
|
|
|
|
// Examine the needed size
|
|
ret = w32net->GetIfTable(p, &size_needed, 0);
|
|
if (ret == ERROR_INSUFFICIENT_BUFFER)
|
|
{
|
|
// Re-allocate the memory block of the needed size
|
|
Free(p);
|
|
p = ZeroMallocFast(size_needed);
|
|
}
|
|
else if (ret != NO_ERROR)
|
|
{
|
|
// Acquisition failure
|
|
FAILED:
|
|
Free(p);
|
|
Debug("******** GetIfTable Failed 1. Err = %u\n", ret);
|
|
return 0;
|
|
}
|
|
|
|
// Actually get
|
|
ret = w32net->GetIfTable(p, &size_needed, FALSE);
|
|
if (ret != NO_ERROR)
|
|
{
|
|
// Acquisition failure
|
|
if ((++num_retry) >= 5)
|
|
{
|
|
goto FAILED;
|
|
}
|
|
Free(p);
|
|
Debug("******** GetIfTable Failed 2. Err = %u\n", ret);
|
|
goto RETRY;
|
|
}
|
|
|
|
// "%s - Packet scheduler miniport"
|
|
Format(ps_miniport_str, sizeof(ps_miniport_str), "%s - ", instance_name);
|
|
Format(ps_miniport_str2, sizeof(ps_miniport_str2), "%s (Microsoft", instance_name);
|
|
|
|
// Search
|
|
ret = 0;
|
|
for (i = 0; i < p->dwNumEntries; i++)
|
|
{
|
|
MIB_IFROW *r = &p->table[i];
|
|
if (instance_name[0] != '@')
|
|
{
|
|
if (StrCmpi(r->bDescr, instance_name) == 0 || StartWith(r->bDescr, ps_miniport_str) || StartWith(r->bDescr, ps_miniport_str2))
|
|
{
|
|
UINT len = StrLen(r->bDescr);
|
|
|
|
if (len < min_len)
|
|
{
|
|
ret = r->dwIndex;
|
|
|
|
min_len = len;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (SearchStrEx(r->bDescr, &instance_name[1], 0, false) != INFINITE)
|
|
{
|
|
ret = r->dwIndex;
|
|
}
|
|
}
|
|
|
|
//Debug("if[%u] (dwIndex=%u): %u, %s\n", i, r->dwIndex, r->dwType, r->bDescr);
|
|
}
|
|
|
|
Free(p);
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Get the DNS suffix in another way
|
|
bool Win32GetDnsSuffix(char *domain, UINT size)
|
|
{
|
|
IP_ADAPTER_ADDRESSES_XP *info;
|
|
IP_ADAPTER_ADDRESSES_XP *cur;
|
|
ULONG info_size;
|
|
bool ret = false;
|
|
// Validate arguments
|
|
ClearStr(domain, size);
|
|
if (domain == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
if (w32net->GetAdaptersAddresses == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
info_size = 0;
|
|
info = ZeroMalloc(sizeof(IP_ADAPTER_ADDRESSES_XP));
|
|
if (w32net->GetAdaptersAddresses(AF_INET, 0, NULL, info, &info_size) == ERROR_BUFFER_OVERFLOW)
|
|
{
|
|
Free(info);
|
|
info = ZeroMalloc(info_size);
|
|
}
|
|
if (w32net->GetAdaptersAddresses(AF_INET, 0, NULL, info, &info_size) != NO_ERROR)
|
|
{
|
|
Free(info);
|
|
return false;
|
|
}
|
|
|
|
cur = info;
|
|
|
|
while (cur != NULL)
|
|
{
|
|
if (UniIsEmptyStr(cur->DnsSuffix) == false)
|
|
{
|
|
UniToStr(domain, size, cur->DnsSuffix);
|
|
ret = true;
|
|
break;
|
|
}
|
|
|
|
cur = cur->Next;
|
|
}
|
|
|
|
Free(info);
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Get the DNS server address of the default
|
|
bool Win32GetDefaultDns(IP *ip, char *domain, UINT size)
|
|
{
|
|
FIXED_INFO *info;
|
|
ULONG info_size;
|
|
char *dns_name;
|
|
// Validate arguments
|
|
ClearStr(domain, size);
|
|
if (ip == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
Zero(ip, sizeof(IP));
|
|
if (w32net->GetNetworkParams == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
info_size = 0;
|
|
info = ZeroMallocFast(sizeof(FIXED_INFO));
|
|
if (w32net->GetNetworkParams(info, &info_size) == ERROR_BUFFER_OVERFLOW)
|
|
{
|
|
Free(info);
|
|
info = ZeroMallocFast(info_size);
|
|
}
|
|
if (w32net->GetNetworkParams(info, &info_size) != NO_ERROR)
|
|
{
|
|
Free(info);
|
|
return false;
|
|
}
|
|
|
|
dns_name = info->DnsServerList.IpAddress.String;
|
|
StrToIP(ip, dns_name);
|
|
|
|
if (domain != NULL)
|
|
{
|
|
StrCpy(domain, size, info->DomainName);
|
|
Trim(domain);
|
|
}
|
|
|
|
Free(info);
|
|
|
|
return true;
|
|
}
|
|
|
|
// IP conversion function for Win32
|
|
void Win32UINTToIP(IP *ip, UINT i)
|
|
{
|
|
UINTToIP(ip, i);
|
|
}
|
|
|
|
// IP conversion function for Win32
|
|
UINT Win32IPToUINT(IP *ip)
|
|
{
|
|
return IPToUINT(ip);
|
|
}
|
|
|
|
// Remove a routing entry from the routing table
|
|
void Win32DeleteRouteEntry(ROUTE_ENTRY *e)
|
|
{
|
|
MIB_IPFORWARDROW *p;
|
|
// Validate arguments
|
|
if (e == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
p = ZeroMallocFast(sizeof(MIB_IPFORWARDROW));
|
|
Win32RouteEntryToIpForwardRow(p, e);
|
|
|
|
// Delete
|
|
w32net->DeleteIpForwardEntry(p);
|
|
|
|
Free(p);
|
|
}
|
|
|
|
// Add a routing entry to the routing table
|
|
bool Win32AddRouteEntry(ROUTE_ENTRY *e, bool *already_exists)
|
|
{
|
|
bool ret = false;
|
|
bool dummy = false;
|
|
MIB_IPFORWARDROW *p;
|
|
UINT err = 0;
|
|
// Validate arguments
|
|
if (e == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
if (already_exists == NULL)
|
|
{
|
|
already_exists = &dummy;
|
|
}
|
|
|
|
*already_exists = false;
|
|
|
|
p = ZeroMallocFast(sizeof(MIB_IPFORWARDROW));
|
|
Win32RouteEntryToIpForwardRow(p, e);
|
|
|
|
// Adding
|
|
err = w32net->CreateIpForwardEntry(p);
|
|
if (err != 0)
|
|
{
|
|
if (err == ERROR_OBJECT_ALREADY_EXISTS)
|
|
{
|
|
Debug("CreateIpForwardEntry: Already Exists\n");
|
|
*already_exists = true;
|
|
ret = true;
|
|
}
|
|
else
|
|
{
|
|
Debug("CreateIpForwardEntry Error: %u\n", err);
|
|
ret = false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ret = true;
|
|
}
|
|
|
|
Free(p);
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Get the routing table
|
|
ROUTE_TABLE *Win32GetRouteTable()
|
|
{
|
|
ROUTE_TABLE *t = ZeroMallocFast(sizeof(ROUTE_TABLE));
|
|
MIB_IPFORWARDTABLE *p;
|
|
UINT ret;
|
|
ULONG size_needed;
|
|
UINT num_retry = 0;
|
|
LIST *o;
|
|
UINT i;
|
|
ROUTE_ENTRY *e;
|
|
|
|
RETRY:
|
|
p = ZeroMallocFast(sizeof(MIB_IFTABLE));
|
|
size_needed = 0;
|
|
|
|
// Examine the needed size
|
|
ret = w32net->GetIpForwardTable(p, &size_needed, 0);
|
|
if (ret == ERROR_INSUFFICIENT_BUFFER)
|
|
{
|
|
// Re-allocate the memory block of the needed size
|
|
Free(p);
|
|
p = ZeroMallocFast(size_needed);
|
|
}
|
|
else if (ret != NO_ERROR)
|
|
{
|
|
// Acquisition failure
|
|
FAILED:
|
|
Free(p);
|
|
t->Entry = MallocFast(0);
|
|
return t;
|
|
}
|
|
|
|
// Actually get
|
|
ret = w32net->GetIpForwardTable(p, &size_needed, FALSE);
|
|
if (ret != NO_ERROR)
|
|
{
|
|
// Acquisition failure
|
|
if ((++num_retry) >= 5)
|
|
{
|
|
goto FAILED;
|
|
}
|
|
Free(p);
|
|
goto RETRY;
|
|
}
|
|
|
|
// Add to the list along
|
|
o = NewListFast(Win32CompareRouteEntryByMetric);
|
|
for (i = 0; i < p->dwNumEntries; i++)
|
|
{
|
|
e = ZeroMallocFast(sizeof(ROUTE_ENTRY));
|
|
Win32IpForwardRowToRouteEntry(e, &p->table[i]);
|
|
Add(o, e);
|
|
}
|
|
Free(p);
|
|
|
|
// Sort by metric
|
|
Sort(o);
|
|
|
|
// Combine the results
|
|
t->NumEntry = LIST_NUM(o);
|
|
t->Entry = ToArrayEx(o, true);
|
|
ReleaseList(o);
|
|
|
|
return t;
|
|
}
|
|
|
|
// Sort the routing entries by metric
|
|
int Win32CompareRouteEntryByMetric(void *p1, void *p2)
|
|
{
|
|
ROUTE_ENTRY *e1, *e2;
|
|
// Validate arguments
|
|
if (p1 == NULL || p2 == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
e1 = *(ROUTE_ENTRY **)p1;
|
|
e2 = *(ROUTE_ENTRY **)p2;
|
|
if (e1 == NULL || e2 == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (e1->Metric > e2->Metric)
|
|
{
|
|
return 1;
|
|
}
|
|
else if (e1->Metric == e2->Metric)
|
|
{
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
// Convert the ROUTE_ENTRY to a MIB_IPFORWARDROW
|
|
void Win32RouteEntryToIpForwardRow(void *ip_forward_row, ROUTE_ENTRY *entry)
|
|
{
|
|
MIB_IPFORWARDROW *r;
|
|
// Validate arguments
|
|
if (entry == NULL || ip_forward_row == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
r = (MIB_IPFORWARDROW *)ip_forward_row;
|
|
Zero(r, sizeof(MIB_IPFORWARDROW));
|
|
|
|
// IP address
|
|
r->dwForwardDest = Win32IPToUINT(&entry->DestIP);
|
|
// Subnet mask
|
|
r->dwForwardMask = Win32IPToUINT(&entry->DestMask);
|
|
// Gateway IP address
|
|
r->dwForwardNextHop = Win32IPToUINT(&entry->GatewayIP);
|
|
// Local routing flag
|
|
if (entry->LocalRouting)
|
|
{
|
|
// Local
|
|
r->dwForwardType = 3;
|
|
}
|
|
else
|
|
{
|
|
// Remote router
|
|
r->dwForwardType = 4;
|
|
}
|
|
// Protocol
|
|
r->dwForwardProto = r->dwForwardType - 1; // Subtract by 1 in most cases
|
|
if (entry->PPPConnection)
|
|
{
|
|
// Isn't this a PPP? Danger!
|
|
r->dwForwardProto++;
|
|
}
|
|
// Metric
|
|
r->dwForwardMetric1 = entry->Metric;
|
|
|
|
if (MsIsVista() == false)
|
|
{
|
|
r->dwForwardMetric2 = r->dwForwardMetric3 = r->dwForwardMetric4 = r->dwForwardMetric5 = INFINITE;
|
|
}
|
|
else
|
|
{
|
|
r->dwForwardMetric2 = r->dwForwardMetric3 = r->dwForwardMetric4 = r->dwForwardMetric5 = 0;
|
|
r->dwForwardAge = 163240;
|
|
}
|
|
|
|
// Interface ID
|
|
r->dwForwardIfIndex = entry->InterfaceID;
|
|
|
|
Debug("Win32RouteEntryToIpForwardRow()\n");
|
|
Debug(" r->dwForwardDest=%X\n", r->dwForwardDest);
|
|
Debug(" r->dwForwardMask=%X\n", r->dwForwardMask);
|
|
Debug(" r->dwForwardNextHop=%X\n", r->dwForwardNextHop);
|
|
Debug(" r->dwForwardType=%u\n", r->dwForwardType);
|
|
Debug(" r->dwForwardProto=%u\n", r->dwForwardProto);
|
|
Debug(" r->dwForwardMetric1=%u\n", r->dwForwardMetric1);
|
|
Debug(" r->dwForwardMetric2=%u\n", r->dwForwardMetric2);
|
|
Debug(" r->dwForwardIfIndex=%u\n", r->dwForwardIfIndex);
|
|
}
|
|
|
|
// Convert the MIB_IPFORWARDROW to a ROUTE_ENTRY
|
|
void Win32IpForwardRowToRouteEntry(ROUTE_ENTRY *entry, void *ip_forward_row)
|
|
{
|
|
MIB_IPFORWARDROW *r;
|
|
// Validate arguments
|
|
if (entry == NULL || ip_forward_row == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
r = (MIB_IPFORWARDROW *)ip_forward_row;
|
|
|
|
Zero(entry, sizeof(ROUTE_ENTRY));
|
|
// IP address
|
|
Win32UINTToIP(&entry->DestIP, r->dwForwardDest);
|
|
// Subnet mask
|
|
Win32UINTToIP(&entry->DestMask, r->dwForwardMask);
|
|
// Gateway IP address
|
|
Win32UINTToIP(&entry->GatewayIP, r->dwForwardNextHop);
|
|
// Local routing flag
|
|
if (r->dwForwardType == 3)
|
|
{
|
|
entry->LocalRouting = true;
|
|
}
|
|
else
|
|
{
|
|
entry->LocalRouting = false;
|
|
}
|
|
if (entry->LocalRouting && r->dwForwardProto == 3)
|
|
{
|
|
// PPP. Danger!
|
|
entry->PPPConnection = true;
|
|
}
|
|
// Metric
|
|
entry->Metric = r->dwForwardMetric1;
|
|
// Interface ID
|
|
entry->InterfaceID = r->dwForwardIfIndex;
|
|
}
|
|
|
|
// Initializing the socket library
|
|
void Win32InitSocketLibrary()
|
|
{
|
|
WSADATA data;
|
|
Zero(&data, sizeof(data));
|
|
WSAStartup(MAKEWORD(2, 2), &data);
|
|
|
|
// Load the DLL functions
|
|
w32net = ZeroMalloc(sizeof(NETWORK_WIN32_FUNCTIONS));
|
|
w32net->hIpHlpApi32 = LoadLibrary("iphlpapi.dll");
|
|
w32net->hIcmp = LoadLibrary("icmp.dll");
|
|
|
|
if (w32net->hIpHlpApi32 != NULL)
|
|
{
|
|
w32net->CreateIpForwardEntry =
|
|
(DWORD (__stdcall *)(PMIB_IPFORWARDROW))
|
|
GetProcAddress(w32net->hIpHlpApi32, "CreateIpForwardEntry");
|
|
|
|
w32net->DeleteIpForwardEntry =
|
|
(DWORD (__stdcall *)(PMIB_IPFORWARDROW))
|
|
GetProcAddress(w32net->hIpHlpApi32, "DeleteIpForwardEntry");
|
|
|
|
w32net->GetIfTable =
|
|
(DWORD (__stdcall *)(PMIB_IFTABLE, PULONG, BOOL))
|
|
GetProcAddress(w32net->hIpHlpApi32, "GetIfTable");
|
|
|
|
w32net->GetIfTable2 =
|
|
(DWORD (__stdcall *)(void **))
|
|
GetProcAddress(w32net->hIpHlpApi32, "GetIfTable2");
|
|
|
|
w32net->FreeMibTable =
|
|
(void (__stdcall *)(PVOID))
|
|
GetProcAddress(w32net->hIpHlpApi32, "FreeMibTable");
|
|
|
|
w32net->GetIpForwardTable =
|
|
(DWORD (__stdcall *)(PMIB_IPFORWARDTABLE, PULONG, BOOL))
|
|
GetProcAddress(w32net->hIpHlpApi32, "GetIpForwardTable");
|
|
|
|
w32net->GetNetworkParams =
|
|
(DWORD (__stdcall *)(PFIXED_INFO,PULONG))
|
|
GetProcAddress(w32net->hIpHlpApi32, "GetNetworkParams");
|
|
|
|
w32net->GetAdaptersAddresses =
|
|
(ULONG (__stdcall *)(ULONG,ULONG,PVOID,PIP_ADAPTER_ADDRESSES,PULONG))
|
|
GetProcAddress(w32net->hIpHlpApi32, "GetAdaptersAddresses");
|
|
|
|
w32net->IpRenewAddress =
|
|
(DWORD (__stdcall *)(PIP_ADAPTER_INDEX_MAP))
|
|
GetProcAddress(w32net->hIpHlpApi32, "IpRenewAddress");
|
|
|
|
w32net->IpReleaseAddress =
|
|
(DWORD (__stdcall *)(PIP_ADAPTER_INDEX_MAP))
|
|
GetProcAddress(w32net->hIpHlpApi32, "IpReleaseAddress");
|
|
|
|
w32net->GetInterfaceInfo =
|
|
(DWORD (__stdcall *)(PIP_INTERFACE_INFO, PULONG))
|
|
GetProcAddress(w32net->hIpHlpApi32, "GetInterfaceInfo");
|
|
|
|
w32net->GetAdaptersInfo =
|
|
(DWORD (__stdcall *)(PIP_ADAPTER_INFO, PULONG))
|
|
GetProcAddress(w32net->hIpHlpApi32, "GetAdaptersInfo");
|
|
|
|
w32net->GetExtendedTcpTable =
|
|
(DWORD (__stdcall *)(PVOID,PDWORD,BOOL,ULONG,_TCP_TABLE_CLASS,ULONG))
|
|
GetProcAddress(w32net->hIpHlpApi32, "GetExtendedTcpTable");
|
|
|
|
w32net->AllocateAndGetTcpExTableFromStack =
|
|
(DWORD (__stdcall *)(PVOID *,BOOL,HANDLE,DWORD,DWORD))
|
|
GetProcAddress(w32net->hIpHlpApi32, "AllocateAndGetTcpExTableFromStack");
|
|
|
|
w32net->GetTcpTable =
|
|
(DWORD (__stdcall *)(PMIB_TCPTABLE,PDWORD,BOOL))
|
|
GetProcAddress(w32net->hIpHlpApi32, "GetTcpTable");
|
|
|
|
w32net->NotifyRouteChange =
|
|
(DWORD (__stdcall *)(PHANDLE,LPOVERLAPPED))
|
|
GetProcAddress(w32net->hIpHlpApi32, "NotifyRouteChange");
|
|
|
|
w32net->CancelIPChangeNotify =
|
|
(BOOL (__stdcall *)(LPOVERLAPPED))
|
|
GetProcAddress(w32net->hIpHlpApi32, "CancelIPChangeNotify");
|
|
|
|
w32net->NhpAllocateAndGetInterfaceInfoFromStack =
|
|
(DWORD (__stdcall *)(IP_INTERFACE_NAME_INFO **,PDWORD,BOOL,HANDLE,DWORD))
|
|
GetProcAddress(w32net->hIpHlpApi32, "NhpAllocateAndGetInterfaceInfoFromStack");
|
|
|
|
w32net->IcmpCreateFile =
|
|
(HANDLE (__stdcall *)())
|
|
GetProcAddress(w32net->hIpHlpApi32, "IcmpCreateFile");
|
|
|
|
w32net->IcmpCloseHandle =
|
|
(BOOL (__stdcall *)(HANDLE))
|
|
GetProcAddress(w32net->hIpHlpApi32, "IcmpCloseHandle");
|
|
|
|
w32net->IcmpSendEcho =
|
|
(DWORD (__stdcall *)(HANDLE,IPAddr,LPVOID,WORD,PIP_OPTION_INFORMATION,LPVOID,DWORD,DWORD))
|
|
GetProcAddress(w32net->hIpHlpApi32, "IcmpSendEcho");
|
|
}
|
|
|
|
if (w32net->hIcmp != NULL)
|
|
{
|
|
if (w32net->IcmpCreateFile == NULL || w32net->IcmpCloseHandle == NULL || w32net->IcmpSendEcho == NULL)
|
|
{
|
|
w32net->IcmpCreateFile =
|
|
(HANDLE (__stdcall *)())
|
|
GetProcAddress(w32net->hIcmp, "IcmpCreateFile");
|
|
|
|
w32net->IcmpCloseHandle =
|
|
(BOOL (__stdcall *)(HANDLE))
|
|
GetProcAddress(w32net->hIcmp, "IcmpCloseHandle");
|
|
|
|
w32net->IcmpSendEcho =
|
|
(DWORD (__stdcall *)(HANDLE,IPAddr,LPVOID,WORD,PIP_OPTION_INFORMATION,LPVOID,DWORD,DWORD))
|
|
GetProcAddress(w32net->hIcmp, "IcmpSendEcho");
|
|
}
|
|
}
|
|
|
|
if (w32net->IcmpCreateFile == NULL || w32net->IcmpCloseHandle == NULL || w32net->IcmpSendEcho == NULL)
|
|
{
|
|
w32net->IcmpCreateFile = NULL;
|
|
w32net->IcmpCloseHandle = NULL;
|
|
w32net->IcmpSendEcho = NULL;
|
|
}
|
|
}
|
|
|
|
// Release of the socket library
|
|
void Win32FreeSocketLibrary()
|
|
{
|
|
if (w32net != NULL)
|
|
{
|
|
if (w32net->hIpHlpApi32 != NULL)
|
|
{
|
|
FreeLibrary(w32net->hIpHlpApi32);
|
|
}
|
|
|
|
if (w32net->hIcmp != NULL)
|
|
{
|
|
FreeLibrary(w32net->hIcmp);
|
|
}
|
|
|
|
Free(w32net);
|
|
w32net = NULL;
|
|
}
|
|
|
|
WSACleanup();
|
|
}
|
|
|
|
// Cancel
|
|
void Win32Cancel(CANCEL *c)
|
|
{
|
|
// Validate arguments
|
|
if (c == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
SetEvent((HANDLE)c->hEvent);
|
|
}
|
|
|
|
// Cleanup of the cancel object
|
|
void Win32CleanupCancel(CANCEL *c)
|
|
{
|
|
// Validate arguments
|
|
if (c == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (c->SpecialFlag == false)
|
|
{
|
|
CloseHandle(c->hEvent);
|
|
}
|
|
|
|
Free(c);
|
|
}
|
|
|
|
// New cancel object
|
|
CANCEL *Win32NewCancel()
|
|
{
|
|
CANCEL *c = ZeroMallocFast(sizeof(CANCEL));
|
|
c->ref = NewRef();
|
|
c->SpecialFlag = false;
|
|
c->hEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
|
|
|
|
return c;
|
|
}
|
|
|
|
// Waiting for a socket event
|
|
bool Win32WaitSockEvent(SOCK_EVENT *event, UINT timeout)
|
|
{
|
|
// Validate arguments
|
|
if (event == NULL || timeout == 0)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (WaitForSingleObject((HANDLE)event->hEvent, timeout) == WAIT_OBJECT_0)
|
|
{
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Clean-up of the socket event
|
|
void Win32CleanupSockEvent(SOCK_EVENT *event)
|
|
{
|
|
// Validate arguments
|
|
if (event == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
CloseHandle((HANDLE)event->hEvent);
|
|
|
|
Free(event);
|
|
}
|
|
|
|
// Set of the socket event
|
|
void Win32SetSockEvent(SOCK_EVENT *event)
|
|
{
|
|
// Validate arguments
|
|
if (event == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
SetEvent((HANDLE)event->hEvent);
|
|
}
|
|
|
|
// Creating a socket event
|
|
SOCK_EVENT *Win32NewSockEvent()
|
|
{
|
|
SOCK_EVENT *e = ZeroMallocFast(sizeof(SOCK_EVENT));
|
|
|
|
e->ref = NewRef();
|
|
e->hEvent = (void *)CreateEvent(NULL, FALSE, FALSE, NULL);
|
|
|
|
return e;
|
|
}
|
|
|
|
// Associate the socket with socket event and set it to asynchronous mode
|
|
void Win32JoinSockToSockEvent(SOCK *sock, SOCK_EVENT *event)
|
|
{
|
|
HANDLE hEvent;
|
|
// Validate arguments
|
|
if (sock == NULL || event == NULL || sock->AsyncMode)
|
|
{
|
|
return;
|
|
}
|
|
if (sock->ListenMode != false || (sock->Type != SOCK_UDP && sock->Connected == false))
|
|
{
|
|
return;
|
|
}
|
|
|
|
sock->AsyncMode = true;
|
|
|
|
hEvent = event->hEvent;
|
|
|
|
// Association
|
|
WSAEventSelect(sock->socket, hEvent, FD_READ | FD_WRITE | FD_CLOSE);
|
|
|
|
// Increase the reference count of the SOCK_EVENT
|
|
AddRef(event->ref);
|
|
sock->SockEvent = event;
|
|
}
|
|
|
|
// Set the socket to asynchronous mode
|
|
void Win32InitAsyncSocket(SOCK *sock)
|
|
{
|
|
// Validate arguments
|
|
if (sock == NULL)
|
|
{
|
|
return;
|
|
}
|
|
if (sock->AsyncMode)
|
|
{
|
|
// This socket is already in asynchronous mode
|
|
return;
|
|
}
|
|
if (sock->ListenMode || ((sock->Type == SOCK_TCP || sock->Type == SOCK_INPROC) && sock->Connected == false))
|
|
{
|
|
return;
|
|
}
|
|
|
|
sock->AsyncMode = true;
|
|
|
|
if (sock->Type == SOCK_INPROC)
|
|
{
|
|
// Fetch the event of the TUBE
|
|
TUBE *t = sock->RecvTube;
|
|
|
|
if (t != NULL)
|
|
{
|
|
if (t->SockEvent != NULL)
|
|
{
|
|
sock->hEvent = t->SockEvent->hEvent;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Creating an Event
|
|
sock->hEvent = (void *)CreateEvent(NULL, FALSE, FALSE, NULL);
|
|
|
|
// Association
|
|
WSAEventSelect(sock->socket, sock->hEvent, FD_READ | FD_WRITE | FD_CLOSE);
|
|
}
|
|
}
|
|
|
|
// Release the asynchronous socket
|
|
void Win32FreeAsyncSocket(SOCK *sock)
|
|
{
|
|
// Validate arguments
|
|
if (sock == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
// Asynchronous socket
|
|
if (sock->hEvent != NULL)
|
|
{
|
|
if (sock->Type != SOCK_INPROC)
|
|
{
|
|
CloseHandle((HANDLE)sock->hEvent);
|
|
}
|
|
}
|
|
sock->hEvent = NULL;
|
|
sock->AsyncMode = false;
|
|
|
|
// Socket event
|
|
if (sock->SockEvent != NULL)
|
|
{
|
|
ReleaseSockEvent(sock->SockEvent);
|
|
sock->SockEvent = NULL;
|
|
}
|
|
}
|
|
|
|
// Select function for Win32
|
|
void Win32Select(SOCKSET *set, UINT timeout, CANCEL *c1, CANCEL *c2)
|
|
{
|
|
HANDLE array[MAXIMUM_WAIT_OBJECTS];
|
|
UINT n, i;
|
|
SOCK *s;
|
|
// Initialization of array
|
|
Zero(array, sizeof(array));
|
|
n = 0;
|
|
|
|
// Setting the event array
|
|
if (set != NULL)
|
|
{
|
|
for (i = 0; i < set->NumSocket; i++)
|
|
{
|
|
s = set->Sock[i];
|
|
if (s != NULL)
|
|
{
|
|
Win32InitAsyncSocket(s);
|
|
if (s->hEvent != NULL)
|
|
{
|
|
array[n++] = (HANDLE)s->hEvent;
|
|
}
|
|
|
|
if (s->BulkRecvTube != NULL)
|
|
{
|
|
array[n++] = (HANDLE)s->BulkRecvTube->SockEvent->hEvent;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (c1 != NULL && c1->hEvent != NULL)
|
|
{
|
|
array[n++] = c1->hEvent;
|
|
}
|
|
if (c2 != NULL && c2->hEvent != NULL)
|
|
{
|
|
array[n++] = c2->hEvent;
|
|
}
|
|
|
|
if (timeout == 0)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (n == 0)
|
|
{
|
|
// Call normal waiting function if no events to wait are registered
|
|
SleepThread(timeout);
|
|
}
|
|
else
|
|
{
|
|
// Wait for the event if events are registered at least one
|
|
if (n == 1)
|
|
{
|
|
// Calling a lightweight version If the event is only one
|
|
WaitForSingleObject(array[0], timeout);
|
|
}
|
|
else
|
|
{
|
|
// In case of multiple events
|
|
WaitForMultipleObjects(n, array, false, timeout);
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif // OS_WIN32
|
|
|
|
// Check whether the IPv6 is supported
|
|
bool IsIPv6Supported()
|
|
{
|
|
#ifdef NO_IPV6
|
|
return false;
|
|
#else // NO_IPV6
|
|
SOCKET s;
|
|
|
|
s = socket(AF_INET6, SOCK_STREAM, 0);
|
|
if (s == INVALID_SOCKET)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
closesocket(s);
|
|
|
|
return true;
|
|
#endif // NO_IPV6
|
|
}
|
|
|
|
// Get the host name from the host cache
|
|
bool GetHostCache(char *hostname, UINT size, IP *ip)
|
|
{
|
|
bool ret;
|
|
// Validate arguments
|
|
if (hostname == NULL || ip == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
ret = false;
|
|
|
|
LockList(HostCacheList);
|
|
{
|
|
HOSTCACHE t, *c;
|
|
Zero(&t, sizeof(t));
|
|
Copy(&t.IpAddress, ip, sizeof(IP));
|
|
|
|
c = Search(HostCacheList, &t);
|
|
if (c != NULL)
|
|
{
|
|
if (IsEmptyStr(c->HostName) == false)
|
|
{
|
|
ret = true;
|
|
StrCpy(hostname, size, c->HostName);
|
|
}
|
|
else
|
|
{
|
|
ret = true;
|
|
StrCpy(hostname, size, "");
|
|
}
|
|
}
|
|
}
|
|
UnlockList(HostCacheList);
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Add to the host name cache
|
|
void AddHostCache(IP *ip, char *hostname)
|
|
{
|
|
// Validate arguments
|
|
if (ip == NULL || hostname == NULL)
|
|
{
|
|
return;
|
|
}
|
|
if (IsNetworkNameCacheEnabled() == false)
|
|
{
|
|
return;
|
|
}
|
|
|
|
LockList(HostCacheList);
|
|
{
|
|
HOSTCACHE t, *c;
|
|
UINT i;
|
|
LIST *o;
|
|
|
|
Zero(&t, sizeof(t));
|
|
Copy(&t.IpAddress, ip, sizeof(IP));
|
|
|
|
c = Search(HostCacheList, &t);
|
|
if (c == NULL)
|
|
{
|
|
c = ZeroMalloc(sizeof(HOSTCACHE));
|
|
Copy(&c->IpAddress, ip, sizeof(IP));
|
|
Add(HostCacheList, c);
|
|
}
|
|
|
|
StrCpy(c->HostName, sizeof(c->HostName), hostname);
|
|
c->Expires = Tick64() + (UINT64)EXPIRES_HOSTNAME;
|
|
|
|
o = NewListFast(NULL);
|
|
|
|
for (i = 0; i < LIST_NUM(HostCacheList); i++)
|
|
{
|
|
HOSTCACHE *c = LIST_DATA(HostCacheList, i);
|
|
|
|
if (c->Expires <= Tick64())
|
|
{
|
|
Add(o, c);
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < LIST_NUM(o); i++)
|
|
{
|
|
HOSTCACHE *c = LIST_DATA(o, i);
|
|
|
|
if (Delete(HostCacheList, c))
|
|
{
|
|
Free(c);
|
|
}
|
|
}
|
|
|
|
ReleaseList(o);
|
|
}
|
|
UnlockList(HostCacheList);
|
|
}
|
|
|
|
// Comparison of host name cache entries
|
|
int CompareHostCache(void *p1, void *p2)
|
|
{
|
|
HOSTCACHE *c1, *c2;
|
|
if (p1 == NULL || p2 == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
c1 = *(HOSTCACHE **)p1;
|
|
c2 = *(HOSTCACHE **)p2;
|
|
if (c1 == NULL || c2 == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
return CmpIpAddr(&c1->IpAddress, &c2->IpAddress);
|
|
}
|
|
|
|
// Release of the host name cache
|
|
void FreeHostCache()
|
|
{
|
|
UINT i;
|
|
|
|
for (i = 0; i < LIST_NUM(HostCacheList); i++)
|
|
{
|
|
HOSTCACHE *c = LIST_DATA(HostCacheList, i);
|
|
|
|
Free(c);
|
|
}
|
|
|
|
ReleaseList(HostCacheList);
|
|
HostCacheList = NULL;
|
|
}
|
|
|
|
// Initialization of the host name cache
|
|
void InitHostCache()
|
|
{
|
|
HostCacheList = NewList(CompareHostCache);
|
|
}
|
|
|
|
// Add the thread to the thread waiting list
|
|
void AddWaitThread(THREAD *t)
|
|
{
|
|
// Validate arguments
|
|
if (t == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
AddRef(t->ref);
|
|
|
|
LockList(WaitThreadList);
|
|
{
|
|
Add(WaitThreadList, t);
|
|
}
|
|
UnlockList(WaitThreadList);
|
|
}
|
|
|
|
// Remove the thread from the waiting list
|
|
void DelWaitThread(THREAD *t)
|
|
{
|
|
// Validate arguments
|
|
if (t == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
LockList(WaitThreadList);
|
|
{
|
|
if (Delete(WaitThreadList, t))
|
|
{
|
|
ReleaseThread(t);
|
|
}
|
|
}
|
|
UnlockList(WaitThreadList);
|
|
}
|
|
|
|
// Creating a thread waiting list
|
|
void InitWaitThread()
|
|
{
|
|
WaitThreadList = NewList(NULL);
|
|
}
|
|
|
|
// Release of the thread waiting list
|
|
void FreeWaitThread()
|
|
{
|
|
UINT i, num;
|
|
THREAD **threads;
|
|
|
|
LockList(WaitThreadList);
|
|
{
|
|
num = LIST_NUM(WaitThreadList);
|
|
threads = ToArray(WaitThreadList);
|
|
DeleteAll(WaitThreadList);
|
|
}
|
|
UnlockList(WaitThreadList);
|
|
|
|
for (i = 0; i < num; i++)
|
|
{
|
|
THREAD *t = threads[i];
|
|
WaitThread(t, INFINITE);
|
|
ReleaseThread(t);
|
|
}
|
|
|
|
Free(threads);
|
|
|
|
ReleaseList(WaitThreadList);
|
|
WaitThreadList = NULL;
|
|
}
|
|
|
|
// Get a domain name for UNIX
|
|
bool UnixGetDomainName(char *name, UINT size)
|
|
{
|
|
bool ret = false;
|
|
BUF *b = ReadDump("/etc/resolv.conf");
|
|
|
|
if (b == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
while (true)
|
|
{
|
|
char *s = CfgReadNextLine(b);
|
|
TOKEN_LIST *t;
|
|
|
|
if (s == NULL)
|
|
{
|
|
break;
|
|
}
|
|
|
|
Trim(s);
|
|
|
|
t = ParseToken(s, " \t");
|
|
if (t != NULL)
|
|
{
|
|
if (t->NumTokens == 2)
|
|
{
|
|
if (StrCmpi(t->Token[0], "domain") == 0)
|
|
{
|
|
StrCpy(name, size, t->Token[1]);
|
|
ret = true;
|
|
}
|
|
}
|
|
FreeToken(t);
|
|
}
|
|
|
|
Free(s);
|
|
}
|
|
|
|
FreeBuf(b);
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Get the domain name
|
|
bool GetDomainName(char *name, UINT size)
|
|
{
|
|
bool ret = false;
|
|
IP ip;
|
|
// Validate arguments
|
|
ClearStr(name, size);
|
|
if (name == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
#ifdef OS_WIN32
|
|
ClearStr(name, size);
|
|
ret = Win32GetDefaultDns(&ip, name, size);
|
|
|
|
if (ret == false || IsEmptyStr(name))
|
|
{
|
|
ret = Win32GetDnsSuffix(name, size);
|
|
}
|
|
#else // OS_WIN32
|
|
ret = UnixGetDomainName(name, size);
|
|
#endif // OS_WIN32
|
|
|
|
if (ret == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
return (IsEmptyStr(name) ? false : true);
|
|
}
|
|
|
|
// Get the default DNS server
|
|
bool GetDefaultDns(IP *ip)
|
|
{
|
|
#ifdef OS_WIN32
|
|
return Win32GetDefaultDns(ip, NULL, 0);
|
|
#else
|
|
return UnixGetDefaultDns(ip);
|
|
#endif // OS_WIN32
|
|
}
|
|
|
|
// Creating a socket event
|
|
SOCK_EVENT *NewSockEvent()
|
|
{
|
|
#ifdef OS_WIN32
|
|
return Win32NewSockEvent();
|
|
#else
|
|
return UnixNewSockEvent();
|
|
#endif // OS_WIN32
|
|
}
|
|
|
|
// Set of the socket event
|
|
void SetSockEvent(SOCK_EVENT *event)
|
|
{
|
|
#ifdef OS_WIN32
|
|
Win32SetSockEvent(event);
|
|
#else
|
|
UnixSetSockEvent(event);
|
|
#endif // OS_WIN32
|
|
}
|
|
|
|
// Clean-up of the socket event
|
|
void CleanupSockEvent(SOCK_EVENT *event)
|
|
{
|
|
#ifdef OS_WIN32
|
|
Win32CleanupSockEvent(event);
|
|
#else
|
|
UnixCleanupSockEvent(event);
|
|
#endif // OS_WIN32
|
|
}
|
|
|
|
// Waiting for the socket event
|
|
bool WaitSockEvent(SOCK_EVENT *event, UINT timeout)
|
|
{
|
|
bool ret = false;
|
|
#ifdef OS_WIN32
|
|
ret = Win32WaitSockEvent(event, timeout);
|
|
#else
|
|
ret = UnixWaitSockEvent(event, timeout);
|
|
#endif // OS_WIN32
|
|
return ret;
|
|
}
|
|
|
|
// Release of the socket event
|
|
void ReleaseSockEvent(SOCK_EVENT *event)
|
|
{
|
|
// Validate arguments
|
|
if (event == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (Release(event->ref) == 0)
|
|
{
|
|
CleanupSockEvent(event);
|
|
}
|
|
}
|
|
|
|
// Let belonging the socket to the socket event
|
|
void JoinSockToSockEvent(SOCK *sock, SOCK_EVENT *event)
|
|
{
|
|
// Validate arguments
|
|
if (sock == NULL || event == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (sock->Type == SOCK_INPROC)
|
|
{
|
|
// Set the SockEvent on the receiver TUBE for in-process type socket
|
|
SetTubeSockEvent(sock->RecvTube, event);
|
|
return;
|
|
}
|
|
|
|
if (sock->BulkRecvTube != NULL)
|
|
{
|
|
// Set the SockEvent on the receiver TUBE in case of R-UDP socket
|
|
SetTubeSockEvent(sock->BulkRecvTube, event);
|
|
}
|
|
|
|
#ifdef OS_WIN32
|
|
Win32JoinSockToSockEvent(sock, event);
|
|
#else
|
|
UnixJoinSockToSockEvent(sock, event);
|
|
#endif // OS_WIN32
|
|
}
|
|
|
|
// New special cancel object
|
|
CANCEL *NewCancelSpecial(void *hEvent)
|
|
{
|
|
CANCEL *c;
|
|
// Validate arguments
|
|
if (hEvent == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
c = ZeroMalloc(sizeof(CANCEL));
|
|
c->ref = NewRef();
|
|
c->SpecialFlag = true;
|
|
|
|
#ifdef OS_WIN32
|
|
c->hEvent = (HANDLE)hEvent;
|
|
#else // OS_WIN32
|
|
c->pipe_read = (int)hEvent;
|
|
c->pipe_write = -1;
|
|
#endif // OS_WIN32
|
|
|
|
return c;
|
|
}
|
|
|
|
// Creating a cancel object
|
|
CANCEL *NewCancel()
|
|
{
|
|
CANCEL *c = NULL;
|
|
#ifdef OS_WIN32
|
|
c = Win32NewCancel();
|
|
#else
|
|
c = UnixNewCancel();
|
|
#endif // OS_WIN32
|
|
return c;
|
|
}
|
|
|
|
// Release of the cancel object
|
|
void ReleaseCancel(CANCEL *c)
|
|
{
|
|
// Validate arguments
|
|
if (c == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (Release(c->ref) == 0)
|
|
{
|
|
CleanupCancel(c);
|
|
}
|
|
}
|
|
|
|
// Clean up of the cancel object
|
|
void CleanupCancel(CANCEL *c)
|
|
{
|
|
#ifdef OS_WIN32
|
|
Win32CleanupCancel(c);
|
|
#else
|
|
UnixCleanupCancel(c);
|
|
#endif
|
|
}
|
|
|
|
// Cancellation triggered
|
|
void Cancel(CANCEL *c)
|
|
{
|
|
#ifdef OS_WIN32
|
|
Win32Cancel(c);
|
|
#else
|
|
UnixCancel(c);
|
|
#endif
|
|
}
|
|
|
|
// Calculate the optimal route from the specified routing table
|
|
ROUTE_ENTRY *GetBestRouteEntryFromRouteTableEx(ROUTE_TABLE *table, IP *ip, UINT exclude_if_id)
|
|
{
|
|
UINT i;
|
|
ROUTE_ENTRY *ret = NULL;
|
|
ROUTE_ENTRY *tmp = NULL;
|
|
UINT64 min_score = 0;
|
|
// Validate arguments
|
|
if (ip == NULL || table == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
if (IsIP6(ip))
|
|
{
|
|
// IPv6 is not supported
|
|
return NULL;
|
|
}
|
|
|
|
// Select routing table entry by following rule
|
|
// 1. Largest subnet mask
|
|
// 2. Smallest metric value
|
|
for (i = 0; i < table->NumEntry; i++)
|
|
{
|
|
ROUTE_ENTRY *e = table->Entry[i];
|
|
UINT dest, net, mask;
|
|
|
|
dest = IPToUINT(ip);
|
|
net = IPToUINT(&e->DestIP);
|
|
mask = IPToUINT(&e->DestMask);
|
|
|
|
if (exclude_if_id != 0)
|
|
{
|
|
if (e->InterfaceID == exclude_if_id)
|
|
{
|
|
continue;
|
|
}
|
|
}
|
|
|
|
// Mask test
|
|
if ((dest & mask) == (net & mask))
|
|
{
|
|
// Calculate the score
|
|
UINT score_high32 = mask;
|
|
UINT score_low32 = 0xFFFFFFFF - e->Metric;
|
|
UINT64 score64 = (UINT64)score_high32 * (UINT64)0x80000000 * (UINT64)2 + (UINT64)score_low32;
|
|
if (score64 == 0)
|
|
{
|
|
score64 = 1;
|
|
}
|
|
|
|
e->InnerScore = score64;
|
|
}
|
|
}
|
|
|
|
tmp = NULL;
|
|
|
|
// Search for the item with maximum score
|
|
for (i = 0; i < table->NumEntry; i++)
|
|
{
|
|
ROUTE_ENTRY *e = table->Entry[i];
|
|
|
|
if (e->InnerScore != 0)
|
|
{
|
|
if (e->InnerScore >= min_score)
|
|
{
|
|
tmp = e;
|
|
min_score = e->InnerScore;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (tmp != NULL)
|
|
{
|
|
UINT dest, gateway, mask;
|
|
|
|
// Generate an entry
|
|
ret = ZeroMallocFast(sizeof(ROUTE_ENTRY));
|
|
|
|
Copy(&ret->DestIP, ip, sizeof(IP));
|
|
ret->DestMask.addr[0] = 255;
|
|
ret->DestMask.addr[1] = 255;
|
|
ret->DestMask.addr[2] = 255;
|
|
ret->DestMask.addr[3] = 255;
|
|
Copy(&ret->GatewayIP, &tmp->GatewayIP, sizeof(IP));
|
|
ret->InterfaceID = tmp->InterfaceID;
|
|
ret->LocalRouting = tmp->LocalRouting;
|
|
ret->OldIfMetric = tmp->Metric;
|
|
ret->Metric = 1;
|
|
ret->PPPConnection = tmp->PPPConnection;
|
|
|
|
// Calculation related to routing control
|
|
dest = IPToUINT(&tmp->DestIP);
|
|
gateway = IPToUINT(&tmp->GatewayIP);
|
|
mask = IPToUINT(&tmp->DestMask);
|
|
if ((dest & mask) == (gateway & mask))
|
|
{
|
|
#ifdef OS_WIN32
|
|
if (MsIsVista() == false)
|
|
{
|
|
// Adjust for Windows
|
|
ret->PPPConnection = true;
|
|
}
|
|
#endif // OS_WIN32
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Release the routing entry
|
|
void FreeRouteEntry(ROUTE_ENTRY *e)
|
|
{
|
|
// Validate arguments
|
|
if (e == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Free(e);
|
|
}
|
|
|
|
// Get the best route entry by analyzing the current routing table
|
|
ROUTE_ENTRY *GetBestRouteEntry(IP *ip)
|
|
{
|
|
return GetBestRouteEntryEx(ip, 0);
|
|
}
|
|
ROUTE_ENTRY *GetBestRouteEntryEx(IP *ip, UINT exclude_if_id)
|
|
{
|
|
ROUTE_TABLE *table;
|
|
ROUTE_ENTRY *e = NULL;
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
table = GetRouteTable();
|
|
if (table == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
e = GetBestRouteEntryFromRouteTableEx(table, ip, exclude_if_id);
|
|
FreeRouteTable(table);
|
|
|
|
return e;
|
|
}
|
|
|
|
// Get the interface ID of the virtual LAN card
|
|
UINT GetVLanInterfaceID(char *tag_name)
|
|
{
|
|
UINT ret = 0;
|
|
#ifdef OS_WIN32
|
|
ret = Win32GetVLanInterfaceID(tag_name);
|
|
#else // OS_WIN32
|
|
ret = UnixGetVLanInterfaceID(tag_name);
|
|
#endif // OS_WIN32
|
|
return ret;
|
|
}
|
|
|
|
// Release of enumeration variable of virtual LAN card
|
|
void FreeEnumVLan(char **s)
|
|
{
|
|
char *a;
|
|
UINT i;
|
|
// Validate arguments
|
|
if (s == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
i = 0;
|
|
while (true)
|
|
{
|
|
a = s[i++];
|
|
if (a == NULL)
|
|
{
|
|
break;
|
|
}
|
|
Free(a);
|
|
}
|
|
|
|
Free(s);
|
|
}
|
|
|
|
// Enumeration of virtual LAN cards
|
|
char **EnumVLan(char *tag_name)
|
|
{
|
|
char **ret = NULL;
|
|
#ifdef OS_WIN32
|
|
ret = Win32EnumVLan(tag_name);
|
|
#else // OS_WIN32
|
|
ret = UnixEnumVLan(tag_name);
|
|
#endif // OS_WIN32
|
|
return ret;
|
|
}
|
|
|
|
// Display the routing table
|
|
void DebugPrintRouteTable(ROUTE_TABLE *r)
|
|
{
|
|
UINT i;
|
|
// Validate arguments
|
|
if (r == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (IsDebug() == false)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Debug("---- Routing Table (%u Entries) ----\n", r->NumEntry);
|
|
|
|
for (i = 0; i < r->NumEntry; i++)
|
|
{
|
|
Debug(" ");
|
|
|
|
DebugPrintRoute(r->Entry[i]);
|
|
}
|
|
|
|
Debug("------------------------------------\n");
|
|
}
|
|
|
|
// Display the routing table entry
|
|
void DebugPrintRoute(ROUTE_ENTRY *e)
|
|
{
|
|
char tmp[MAX_SIZE];
|
|
// Validate arguments
|
|
if (e == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (IsDebug() == false)
|
|
{
|
|
return;
|
|
}
|
|
|
|
RouteToStr(tmp, sizeof(tmp), e);
|
|
|
|
Debug("%s\n", tmp);
|
|
}
|
|
|
|
// Convert the routing table entry to string
|
|
void RouteToStr(char *str, UINT str_size, ROUTE_ENTRY *e)
|
|
{
|
|
char dest_ip[MAX_PATH];
|
|
char dest_mask[MAX_PATH];
|
|
char gateway_ip[MAX_PATH];
|
|
// Validate arguments
|
|
if (str == NULL || e == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
IPToStr(dest_ip, sizeof(dest_ip), &e->DestIP);
|
|
IPToStr(dest_mask, sizeof(dest_mask), &e->DestMask);
|
|
IPToStr(gateway_ip, sizeof(gateway_ip), &e->GatewayIP);
|
|
|
|
Format(str, str_size, "%s/%s %s m=%u oif=%u if=%u lo=%u p=%u",
|
|
dest_ip, dest_mask, gateway_ip,
|
|
e->Metric, e->OldIfMetric, e->InterfaceID,
|
|
e->LocalRouting, e->PPPConnection);
|
|
}
|
|
|
|
// Delete the routing table
|
|
void DeleteRouteEntry(ROUTE_ENTRY *e)
|
|
{
|
|
Debug("DeleteRouteEntry();\n");
|
|
#ifdef OS_WIN32
|
|
Win32DeleteRouteEntry(e);
|
|
#else // OS_WIN32
|
|
UnixDeleteRouteEntry(e);
|
|
#endif
|
|
}
|
|
|
|
// Add to the routing table
|
|
bool AddRouteEntry(ROUTE_ENTRY *e)
|
|
{
|
|
bool dummy = false;
|
|
return AddRouteEntryEx(e, &dummy);
|
|
}
|
|
bool AddRouteEntryEx(ROUTE_ENTRY *e, bool *already_exists)
|
|
{
|
|
bool ret = false;
|
|
Debug("AddRouteEntryEx();\n");
|
|
#ifdef OS_WIN32
|
|
ret = Win32AddRouteEntry(e, already_exists);
|
|
#else // OS_WIN32
|
|
ret = UnixAddRouteEntry(e, already_exists);
|
|
#endif
|
|
return ret;
|
|
}
|
|
|
|
// Get the routing table
|
|
ROUTE_TABLE *GetRouteTable()
|
|
{
|
|
ROUTE_TABLE *t = NULL;
|
|
UINT i;
|
|
BUF *buf = NewBuf();
|
|
UCHAR hash[MD5_SIZE];
|
|
|
|
#ifdef OS_WIN32
|
|
t = Win32GetRouteTable();
|
|
#else //OS_WIN32
|
|
t = UnixGetRouteTable();
|
|
#endif // OS_WIN32
|
|
|
|
WriteBuf(buf, &t->NumEntry, sizeof(t->NumEntry));
|
|
|
|
for (i = 0; i < t->NumEntry; i++)
|
|
{
|
|
ROUTE_ENTRY *e = t->Entry[i];
|
|
|
|
WriteBuf(buf, e, sizeof(ROUTE_ENTRY));
|
|
}
|
|
|
|
Md5(hash, buf->Buf, buf->Size);
|
|
|
|
FreeBuf(buf);
|
|
|
|
Copy(&t->HashedValue, hash, sizeof(t->HashedValue));
|
|
|
|
return t;
|
|
}
|
|
|
|
// Release of the routing table
|
|
void FreeRouteTable(ROUTE_TABLE *t)
|
|
{
|
|
UINT i;
|
|
// Validate arguments
|
|
if (t == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < t->NumEntry; i++)
|
|
{
|
|
Free(t->Entry[i]);
|
|
}
|
|
Free(t->Entry);
|
|
Free(t);
|
|
}
|
|
|
|
// UDP receiving
|
|
UINT RecvFrom(SOCK *sock, IP *src_addr, UINT *src_port, void *data, UINT size)
|
|
{
|
|
struct sockaddr_in addr;
|
|
int ret = 0;
|
|
#ifdef OS_WIN32
|
|
int socklen = sizeof(addr);
|
|
#else
|
|
socklen_t socklen = sizeof(addr);
|
|
#endif
|
|
|
|
// Validate arguments
|
|
if (sock != NULL)
|
|
{
|
|
if (sock->IPv6)
|
|
{
|
|
return RecvFrom6(sock, src_addr, src_port, data, size);
|
|
}
|
|
|
|
sock->IgnoreRecvErr = false;
|
|
}
|
|
else
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (src_addr == NULL || src_port == NULL || data == NULL || size == 0)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (sock->Type != SOCK_UDP || sock->socket == INVALID_SOCKET)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
ret = recvfrom(sock->socket, data, size, 0, (struct sockaddr *)&addr, &socklen);
|
|
if (ret > 0)
|
|
{
|
|
InAddrToIP(src_addr, &addr.sin_addr);
|
|
*src_port = (UINT)ntohs(addr.sin_port);
|
|
if (sock->IsRawSocket)
|
|
{
|
|
*src_port = sock->LocalPort;
|
|
}
|
|
|
|
Lock(sock->lock);
|
|
{
|
|
sock->RecvNum++;
|
|
sock->RecvSize += (UINT64)ret;
|
|
}
|
|
Unlock(sock->lock);
|
|
|
|
return (UINT)ret;
|
|
}
|
|
else
|
|
{
|
|
#ifdef OS_WIN32
|
|
if (WSAGetLastError() == WSAECONNRESET || WSAGetLastError() == WSAENETRESET || WSAGetLastError() == WSAEMSGSIZE || WSAGetLastError() == WSAENETUNREACH ||
|
|
WSAGetLastError() == WSAENOBUFS || WSAGetLastError() == WSAEHOSTUNREACH || WSAGetLastError() == WSAEUSERS || WSAGetLastError() == WSAEADDRNOTAVAIL || WSAGetLastError() == WSAEADDRNOTAVAIL)
|
|
{
|
|
sock->IgnoreRecvErr = true;
|
|
}
|
|
else if (WSAGetLastError() == WSAEWOULDBLOCK || WSAGetLastError() == WSAEINPROGRESS)
|
|
{
|
|
return SOCK_LATER;
|
|
}
|
|
else
|
|
{
|
|
Debug("RecvFrom(): recvfrom() failed with error: %u\n", WSAGetLastError());
|
|
}
|
|
#else
|
|
if (errno == ECONNREFUSED || errno == ECONNRESET || errno == EMSGSIZE || errno == ENOBUFS || errno == ENOMEM || errno == EINTR)
|
|
{
|
|
sock->IgnoreRecvErr = true;
|
|
}
|
|
else if (errno == EAGAIN)
|
|
{
|
|
return SOCK_LATER;
|
|
}
|
|
else
|
|
{
|
|
Debug("RecvFrom(): recvfrom() failed with error: %s\n", strerror(errno));
|
|
}
|
|
#endif
|
|
return 0;
|
|
}
|
|
}
|
|
UINT RecvFrom6(SOCK *sock, IP *src_addr, UINT *src_port, void *data, UINT size)
|
|
{
|
|
struct sockaddr_in6 addr;
|
|
int ret = 0;
|
|
#ifdef OS_WIN32
|
|
int socklen = sizeof(addr);
|
|
#else
|
|
socklen_t socklen = sizeof(addr);
|
|
#endif
|
|
|
|
// Validate arguments
|
|
if (sock != NULL)
|
|
{
|
|
sock->IgnoreRecvErr = false;
|
|
}
|
|
else
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (src_addr == NULL || src_port == NULL || data == NULL || size == 0)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (sock->Type != SOCK_UDP || sock->socket == INVALID_SOCKET)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
|
|
ret = recvfrom(sock->socket, data, size, 0, (struct sockaddr *)&addr, &socklen);
|
|
if (ret > 0)
|
|
{
|
|
InAddrToIP6(src_addr, &addr.sin6_addr);
|
|
src_addr->ipv6_scope_id = addr.sin6_scope_id;
|
|
*src_port = (UINT)ntohs(addr.sin6_port);
|
|
if (sock->IsRawSocket)
|
|
{
|
|
*src_port = sock->LocalPort;
|
|
}
|
|
|
|
Lock(sock->lock);
|
|
{
|
|
sock->RecvNum++;
|
|
sock->RecvSize += (UINT64)ret;
|
|
}
|
|
Unlock(sock->lock);
|
|
|
|
return (UINT)ret;
|
|
}
|
|
else
|
|
{
|
|
#ifdef OS_WIN32
|
|
if (WSAGetLastError() == WSAECONNRESET || WSAGetLastError() == WSAENETRESET || WSAGetLastError() == WSAEMSGSIZE || WSAGetLastError() == WSAENETUNREACH ||
|
|
WSAGetLastError() == WSAENOBUFS || WSAGetLastError() == WSAEHOSTUNREACH || WSAGetLastError() == WSAEUSERS || WSAGetLastError() == WSAEADDRNOTAVAIL || WSAGetLastError() == WSAEADDRNOTAVAIL)
|
|
{
|
|
sock->IgnoreRecvErr = true;
|
|
}
|
|
else if (WSAGetLastError() == WSAEWOULDBLOCK || WSAGetLastError() == WSAEINPROGRESS)
|
|
{
|
|
return SOCK_LATER;
|
|
}
|
|
else
|
|
{
|
|
Debug("RecvFrom(): recvfrom() failed with error: %u\n", WSAGetLastError());
|
|
}
|
|
#else
|
|
if (errno == ECONNREFUSED || errno == ECONNRESET || errno == EMSGSIZE || errno == ENOBUFS || errno == ENOMEM || errno == EINTR)
|
|
{
|
|
sock->IgnoreRecvErr = true;
|
|
}
|
|
else if (errno == EAGAIN)
|
|
{
|
|
return SOCK_LATER;
|
|
}
|
|
else
|
|
{
|
|
Debug("RecvFrom(): recvfrom() failed with error: %s\n", strerror(errno));
|
|
}
|
|
#endif
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
// UDP transmission
|
|
UINT SendTo(SOCK *sock, IP *dest_addr, UINT dest_port, void *data, UINT size)
|
|
{
|
|
return SendToEx(sock, dest_addr, dest_port, data, size, false);
|
|
}
|
|
UINT SendToEx(SOCK *sock, IP *dest_addr, UINT dest_port, void *data, UINT size, bool broadcast)
|
|
{
|
|
SOCKET s;
|
|
int ret;
|
|
struct sockaddr_in addr;
|
|
// Validate arguments
|
|
if (sock != NULL)
|
|
{
|
|
sock->IgnoreSendErr = false;
|
|
}
|
|
if (sock == NULL || dest_addr == NULL || (sock->IsRawSocket == false && dest_port == 0) || data == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
if (dest_port >= 65536 && sock->IsRawSocket == false)
|
|
{
|
|
return 0;
|
|
}
|
|
if (sock->Type != SOCK_UDP || sock->socket == INVALID_SOCKET)
|
|
{
|
|
return 0;
|
|
}
|
|
if (size == 0)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (sock->IPv6)
|
|
{
|
|
return SendTo6Ex(sock, dest_addr, dest_port, data, size, broadcast);
|
|
}
|
|
|
|
if (IsIP4(dest_addr) == false)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
s = sock->socket;
|
|
Zero(&addr, sizeof(addr));
|
|
addr.sin_family = AF_INET;
|
|
if (sock->IsRawSocket == false)
|
|
{
|
|
addr.sin_port = htons((USHORT)dest_port);
|
|
}
|
|
IPToInAddr(&addr.sin_addr, dest_addr);
|
|
|
|
if ((dest_addr->addr[0] == 255 && dest_addr->addr[1] == 255 &&
|
|
dest_addr->addr[2] == 255 && dest_addr->addr[3] == 255) ||
|
|
(dest_addr->addr[0] >= 224 && dest_addr->addr[0] <= 239)
|
|
|| broadcast)
|
|
{
|
|
if (sock->UdpBroadcast == false)
|
|
{
|
|
bool yes = true;
|
|
|
|
sock->UdpBroadcast = true;
|
|
|
|
(void)setsockopt(s, SOL_SOCKET, SO_BROADCAST, (char *)&yes, sizeof(yes));
|
|
}
|
|
}
|
|
|
|
ret = sendto(s, data, size, 0, (struct sockaddr *)&addr, sizeof(addr));
|
|
if (ret != (int)size)
|
|
{
|
|
sock->IgnoreSendErr = false;
|
|
|
|
#ifdef OS_WIN32
|
|
if (WSAGetLastError() == WSAECONNRESET || WSAGetLastError() == WSAENETRESET || WSAGetLastError() == WSAEMSGSIZE || WSAGetLastError() == WSAENETUNREACH ||
|
|
WSAGetLastError() == WSAENOBUFS || WSAGetLastError() == WSAEHOSTUNREACH || WSAGetLastError() == WSAEUSERS || WSAGetLastError() == WSAEINVAL || WSAGetLastError() == WSAEADDRNOTAVAIL)
|
|
{
|
|
sock->IgnoreSendErr = true;
|
|
}
|
|
else if (WSAGetLastError() == WSAEWOULDBLOCK || WSAGetLastError() == WSAEINPROGRESS)
|
|
{
|
|
return SOCK_LATER;
|
|
}
|
|
else
|
|
{
|
|
UINT e = WSAGetLastError();
|
|
Debug("SendTo Error; %u\n", e);
|
|
}
|
|
#else // OS_WIN32
|
|
if (errno == ECONNREFUSED || errno == ECONNRESET || errno == EMSGSIZE || errno == ENOBUFS || errno == ENOMEM || errno == EINTR)
|
|
{
|
|
sock->IgnoreSendErr = true;
|
|
}
|
|
else if (errno == EAGAIN)
|
|
{
|
|
return SOCK_LATER;
|
|
}
|
|
#endif // OS_WIN32
|
|
return 0;
|
|
}
|
|
|
|
Lock(sock->lock);
|
|
{
|
|
sock->SendSize += (UINT64)size;
|
|
sock->SendNum++;
|
|
}
|
|
Unlock(sock->lock);
|
|
|
|
return ret;
|
|
}
|
|
UINT SendTo6Ex(SOCK *sock, IP *dest_addr, UINT dest_port, void *data, UINT size, bool broadcast)
|
|
{
|
|
SOCKET s;
|
|
int ret;
|
|
struct sockaddr_in6 addr;
|
|
UINT type;
|
|
// Validate arguments
|
|
if (sock != NULL)
|
|
{
|
|
sock->IgnoreSendErr = false;
|
|
}
|
|
if (sock == NULL || dest_addr == NULL || (sock->IsRawSocket == false && dest_port == 0) || data == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
if (dest_port >= 65536 && sock->IsRawSocket == false)
|
|
{
|
|
return 0;
|
|
}
|
|
if (sock->Type != SOCK_UDP || sock->socket == INVALID_SOCKET)
|
|
{
|
|
return 0;
|
|
}
|
|
if (size == 0)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (IsIP6(dest_addr) == false)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
s = sock->socket;
|
|
Zero(&addr, sizeof(addr));
|
|
addr.sin6_family = AF_INET6;
|
|
if (sock->IsRawSocket == false)
|
|
{
|
|
addr.sin6_port = htons((USHORT)dest_port);
|
|
}
|
|
IPToInAddr6(&addr.sin6_addr, dest_addr);
|
|
addr.sin6_scope_id = dest_addr->ipv6_scope_id;
|
|
|
|
type = GetIPAddrType6(dest_addr);
|
|
|
|
if ((type & IPV6_ADDR_MULTICAST) || broadcast)
|
|
{
|
|
if (sock->UdpBroadcast == false)
|
|
{
|
|
bool yes = true;
|
|
|
|
sock->UdpBroadcast = true;
|
|
|
|
(void)setsockopt(s, SOL_SOCKET, SO_BROADCAST, (char *)&yes, sizeof(yes));
|
|
}
|
|
}
|
|
|
|
ret = sendto(s, data, size, 0, (struct sockaddr *)&addr, sizeof(addr));
|
|
if (ret != (int)size)
|
|
{
|
|
sock->IgnoreSendErr = false;
|
|
|
|
#ifdef OS_WIN32
|
|
if (WSAGetLastError() == WSAECONNRESET || WSAGetLastError() == WSAENETRESET || WSAGetLastError() == WSAEMSGSIZE || WSAGetLastError() == WSAENETUNREACH ||
|
|
WSAGetLastError() == WSAENOBUFS || WSAGetLastError() == WSAEHOSTUNREACH || WSAGetLastError() == WSAEUSERS || WSAGetLastError() == WSAEINVAL || WSAGetLastError() == WSAEADDRNOTAVAIL)
|
|
{
|
|
sock->IgnoreSendErr = true;
|
|
}
|
|
else if (WSAGetLastError() == WSAEWOULDBLOCK || WSAGetLastError() == WSAEINPROGRESS)
|
|
{
|
|
return SOCK_LATER;
|
|
}
|
|
#else // OS_WIN32
|
|
if (errno == ECONNREFUSED || errno == ECONNRESET || errno == EMSGSIZE || errno == ENOBUFS || errno == ENOMEM || errno == EINTR)
|
|
{
|
|
sock->IgnoreSendErr = true;
|
|
}
|
|
else if (errno == EAGAIN)
|
|
{
|
|
return SOCK_LATER;
|
|
}
|
|
#endif // OS_WIN32
|
|
return 0;
|
|
}
|
|
|
|
Lock(sock->lock);
|
|
{
|
|
sock->SendSize += (UINT64)size;
|
|
sock->SendNum++;
|
|
}
|
|
Unlock(sock->lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Open a UDP port (port number is random, but determine the randomness in the seed)
|
|
SOCK *NewUDPEx2Rand(bool ipv6, IP *ip, void *rand_seed, UINT rand_seed_size, UINT num_retry)
|
|
{
|
|
UINT i;
|
|
// Validate arguments
|
|
if (rand_seed == NULL || rand_seed_size == 0)
|
|
{
|
|
return NULL;
|
|
}
|
|
if (num_retry == 0)
|
|
{
|
|
num_retry = RAND_UDP_PORT_DEFAULT_NUM_RETRY;
|
|
}
|
|
|
|
for (i = 0; i < (num_retry + 1); i++)
|
|
{
|
|
BUF *buf = NewBuf();
|
|
UCHAR hash[SHA1_SIZE];
|
|
UINT port = 0;
|
|
SOCK *s;
|
|
|
|
WriteBuf(buf, rand_seed, rand_seed_size);
|
|
WriteBufInt(buf, i);
|
|
|
|
Sha1(hash, buf->Buf, buf->Size);
|
|
|
|
FreeBuf(buf);
|
|
|
|
port = READ_UINT(hash);
|
|
|
|
port = RAND_UDP_PORT_START + (port % (RAND_UDP_PORT_END - RAND_UDP_PORT_START));
|
|
|
|
s = NewUDPEx2(port, ipv6, ip);
|
|
|
|
if (s != NULL)
|
|
{
|
|
return s;
|
|
}
|
|
}
|
|
|
|
return NewUDPEx2(0, ipv6, ip);
|
|
}
|
|
|
|
// Open the UDP port (based on the EXE path and machine key)
|
|
SOCK *NewUDPEx2RandMachineAndExePath(bool ipv6, IP *ip, UINT num_retry, UCHAR rand_port_id)
|
|
{
|
|
BUF *b;
|
|
char machine_name[MAX_SIZE];
|
|
wchar_t exe_path[MAX_PATH];
|
|
char *product_id = NULL;
|
|
UCHAR hash[SHA1_SIZE];
|
|
|
|
#ifdef OS_WIN32
|
|
product_id = MsRegReadStr(REG_LOCAL_MACHINE, "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion", "ProductId");
|
|
if (product_id == NULL)
|
|
{
|
|
product_id = MsRegReadStr(REG_LOCAL_MACHINE, "SOFTWARE\\Microsoft\\Windows\\CurrentVersion", "ProductId");
|
|
}
|
|
#endif // OS_WIN32
|
|
|
|
b = NewBuf();
|
|
|
|
GetMachineHostName(machine_name, sizeof(machine_name));
|
|
Trim(machine_name);
|
|
StrUpper(machine_name);
|
|
|
|
GetExeNameW(exe_path, sizeof(exe_path));
|
|
UniTrim(exe_path);
|
|
UniStrUpper(exe_path);
|
|
|
|
WriteBuf(b, machine_name, StrSize(machine_name));
|
|
WriteBuf(b, exe_path, UniStrSize(exe_path));
|
|
WriteBuf(b, product_id, StrSize(product_id));
|
|
WriteBufChar(b, rand_port_id);
|
|
//WriteBufInt(b, GetHostIPAddressHash32());
|
|
|
|
Sha1(hash, b->Buf, b->Size);
|
|
|
|
FreeBuf(b);
|
|
|
|
Free(product_id);
|
|
|
|
return NewUDPEx2Rand(ipv6, ip, hash, sizeof(hash), num_retry);
|
|
}
|
|
|
|
// Set the DF bit of the socket
|
|
void ClearSockDfBit(SOCK *s)
|
|
{
|
|
#ifdef IP_PMTUDISC_DONT
|
|
#ifdef IP_MTU_DISCOVER
|
|
UINT value = IP_PMTUDISC_DONT;
|
|
if (s == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
(void)setsockopt(s->socket, IPPROTO_IP, IP_MTU_DISCOVER, (char *)&value, sizeof(value));
|
|
#endif // IP_MTU_DISCOVER
|
|
#endif // IP_PMTUDISC_DONT
|
|
}
|
|
|
|
// Set the header-include option
|
|
void SetRawSockHeaderIncludeOption(SOCK *s, bool enable)
|
|
{
|
|
UINT value = BOOL_TO_INT(enable);
|
|
if (s == NULL || s->IsRawSocket == false)
|
|
{
|
|
return;
|
|
}
|
|
|
|
(void)setsockopt(s->socket, IPPROTO_IP, IP_HDRINCL, (char *)&value, sizeof(value));
|
|
|
|
s->RawIP_HeaderIncludeFlag = enable;
|
|
}
|
|
|
|
// Create and initialize the UDP socket
|
|
// If port is specified as 0, system assigns a certain port.
|
|
SOCK *NewUDP(UINT port)
|
|
{
|
|
return NewUDPEx(port, false);
|
|
}
|
|
SOCK *NewUDPEx(UINT port, bool ipv6)
|
|
{
|
|
return NewUDPEx2(port, ipv6, NULL);
|
|
}
|
|
SOCK *NewUDPEx2(UINT port, bool ipv6, IP *ip)
|
|
{
|
|
if (ipv6 == false)
|
|
{
|
|
return NewUDP4(port, ip);
|
|
}
|
|
else
|
|
{
|
|
return NewUDP6(port, ip);
|
|
}
|
|
}
|
|
SOCK *NewUDPEx3(UINT port, IP *ip)
|
|
{
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return NewUDPEx2(port, false, NULL);
|
|
}
|
|
|
|
if (IsIP4(ip))
|
|
{
|
|
return NewUDPEx2(port, false, ip);
|
|
}
|
|
else
|
|
{
|
|
return NewUDPEx2(port, true, ip);
|
|
}
|
|
}
|
|
SOCK *NewUDP4(UINT port, IP *ip)
|
|
{
|
|
SOCK *sock;
|
|
SOCKET s;
|
|
struct sockaddr_in addr;
|
|
// Validate arguments
|
|
if (ip != NULL && IsIP4(ip) == false)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
if (IS_SPECIAL_PORT(port) == false)
|
|
{
|
|
s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
|
|
}
|
|
else
|
|
{
|
|
s = socket(AF_INET, SOCK_RAW, GET_SPECIAL_PORT(port));
|
|
}
|
|
if (s == INVALID_SOCKET)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
Zero(&addr, sizeof(addr));
|
|
addr.sin_family = AF_INET;
|
|
|
|
if (ip == NULL || IsZeroIP(ip))
|
|
{
|
|
addr.sin_addr.s_addr = htonl(INADDR_ANY);
|
|
}
|
|
else
|
|
{
|
|
IPToInAddr(&addr.sin_addr, ip);
|
|
}
|
|
|
|
if (port == 0 || IS_SPECIAL_PORT(port))
|
|
{
|
|
addr.sin_port = 0;
|
|
}
|
|
else
|
|
{
|
|
addr.sin_port = htons((USHORT)port);
|
|
}
|
|
|
|
if (bind(s, (struct sockaddr *)&addr, sizeof(addr)) != 0)
|
|
{
|
|
// Failure
|
|
if (port != 0)
|
|
{
|
|
bool true_flag = true;
|
|
(void)setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (char *)&true_flag, sizeof(bool));
|
|
if (bind(s, (struct sockaddr *)&addr, sizeof(addr)) != 0)
|
|
{
|
|
bool false_flag = false;
|
|
(void)setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (char *)&false_flag, sizeof(bool));
|
|
#ifdef SO_EXCLUSIVEADDRUSE
|
|
(void)setsockopt(s, SOL_SOCKET, SO_EXCLUSIVEADDRUSE, (char *)&true_flag, sizeof(bool));
|
|
#endif // SO_EXCLUSIVEADDRUSE
|
|
if (bind(s, (struct sockaddr *)&addr, sizeof(addr)) != 0)
|
|
{
|
|
closesocket(s);
|
|
return NULL;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
closesocket(s);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
sock = NewSock();
|
|
|
|
sock->Type = SOCK_UDP;
|
|
sock->Connected = false;
|
|
sock->AsyncMode = false;
|
|
sock->ServerMode = false;
|
|
if (port != 0)
|
|
{
|
|
sock->ServerMode = true;
|
|
}
|
|
|
|
sock->socket = s;
|
|
|
|
InitUdpSocketBufferSize((int)s);
|
|
|
|
if (IS_SPECIAL_PORT(port))
|
|
{
|
|
bool no = false;
|
|
(void)setsockopt(sock->socket, IPPROTO_IP, IP_HDRINCL, (char *)&no, sizeof(no));
|
|
|
|
sock->IsRawSocket = true;
|
|
sock->RawSocketIPProtocol = GET_SPECIAL_PORT(port);
|
|
}
|
|
|
|
QuerySocketInformation(sock);
|
|
|
|
return sock;
|
|
}
|
|
SOCK *NewUDP6(UINT port, IP *ip)
|
|
{
|
|
SOCK *sock;
|
|
SOCKET s;
|
|
struct sockaddr_in6 addr;
|
|
// Validate arguments
|
|
if (ip != NULL && IsIP6(ip) == false)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
if (IS_SPECIAL_PORT(port) == false)
|
|
{
|
|
s = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP);
|
|
}
|
|
else
|
|
{
|
|
s = socket(AF_INET6, SOCK_RAW, GET_SPECIAL_PORT(port));
|
|
}
|
|
if (s == INVALID_SOCKET)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
Zero(&addr, sizeof(addr));
|
|
addr.sin6_family = AF_INET6;
|
|
if (port == 0)
|
|
{
|
|
addr.sin6_port = 0;
|
|
}
|
|
else
|
|
{
|
|
addr.sin6_port = htons((USHORT)port);
|
|
}
|
|
|
|
if (ip != NULL && IsZeroIP(ip) == false)
|
|
{
|
|
IPToInAddr6(&addr.sin6_addr, ip);
|
|
addr.sin6_scope_id = ip->ipv6_scope_id;
|
|
}
|
|
|
|
if (bind(s, (struct sockaddr *)&addr, sizeof(addr)) != 0)
|
|
{
|
|
// Failure
|
|
if (port != 0)
|
|
{
|
|
bool true_flag = true;
|
|
(void)setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (char *)&true_flag, sizeof(bool));
|
|
if (bind(s, (struct sockaddr *)&addr, sizeof(addr)) != 0)
|
|
{
|
|
bool false_flag = false;
|
|
(void)setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (char *)&false_flag, sizeof(bool));
|
|
#ifdef SO_EXCLUSIVEADDRUSE
|
|
(void)setsockopt(s, SOL_SOCKET, SO_EXCLUSIVEADDRUSE, (char *)&true_flag, sizeof(bool));
|
|
#endif // SO_EXCLUSIVEADDRUSE
|
|
if (bind(s, (struct sockaddr *)&addr, sizeof(addr)) != 0)
|
|
{
|
|
closesocket(s);
|
|
return NULL;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
closesocket(s);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
sock = NewSock();
|
|
|
|
sock->Type = SOCK_UDP;
|
|
sock->Connected = false;
|
|
sock->AsyncMode = false;
|
|
sock->ServerMode = false;
|
|
sock->IPv6 = true;
|
|
if (port != 0)
|
|
{
|
|
sock->ServerMode = true;
|
|
}
|
|
|
|
sock->socket = s;
|
|
|
|
InitUdpSocketBufferSize(s);
|
|
|
|
if (IS_SPECIAL_PORT(port))
|
|
{
|
|
bool no = false;
|
|
#ifdef IPV6_HDRINCL
|
|
(void)setsockopt(sock->socket, IPPROTO_IP, IPV6_HDRINCL, (char *)&no, sizeof(no));
|
|
#endif // IPV6_HDRINCL
|
|
(void)setsockopt(sock->socket, IPPROTO_IP, IP_HDRINCL, (char *)&no, sizeof(no));
|
|
|
|
sock->IsRawSocket = true;
|
|
sock->RawSocketIPProtocol = GET_SPECIAL_PORT(port);
|
|
}
|
|
|
|
QuerySocketInformation(sock);
|
|
|
|
return sock;
|
|
}
|
|
|
|
// Select function
|
|
void Select(SOCKSET *set, UINT timeout, CANCEL *c1, CANCEL *c2)
|
|
{
|
|
#ifdef OS_WIN32
|
|
Win32Select(set, timeout, c1, c2);
|
|
#else
|
|
UnixSelect(set, timeout, c1, c2);
|
|
#endif // OS_WIN32
|
|
}
|
|
|
|
// Add a socket to the socket set
|
|
void AddSockSet(SOCKSET *set, SOCK *sock)
|
|
{
|
|
// Validate arguments
|
|
if (set == NULL || sock == NULL)
|
|
{
|
|
return;
|
|
}
|
|
if (sock->Type == SOCK_TCP && sock->Connected == false)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (set->NumSocket >= MAX_SOCKSET_NUM)
|
|
{
|
|
// Upper limit
|
|
return;
|
|
}
|
|
set->Sock[set->NumSocket++] = sock;
|
|
}
|
|
|
|
// Initializing the socket set
|
|
void InitSockSet(SOCKSET *set)
|
|
{
|
|
// Validate arguments
|
|
if (set == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Zero(set, sizeof(SOCKSET));
|
|
}
|
|
|
|
// Receive data and discard all of them
|
|
bool RecvAllWithDiscard(SOCK *sock, UINT size, bool secure)
|
|
{
|
|
static UCHAR buffer[4096];
|
|
UINT recv_size, sz, ret;
|
|
if (sock == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
if (size == 0)
|
|
{
|
|
return true;
|
|
}
|
|
if (sock->AsyncMode)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
recv_size = 0;
|
|
|
|
while (true)
|
|
{
|
|
sz = MIN(size - recv_size, sizeof(buffer));
|
|
ret = Recv(sock, buffer, sz, secure);
|
|
if (ret == 0)
|
|
{
|
|
return false;
|
|
}
|
|
if (ret == SOCK_LATER)
|
|
{
|
|
// I suppose that this is safe because the RecvAll() function is used only
|
|
// if the sock->AsyncMode == true. And the Recv() function may return
|
|
// SOCK_LATER only if the sock->AsyncMode == false. Therefore the call of
|
|
// Recv() function in the RecvAll() function never returns SOCK_LATER.
|
|
return false;
|
|
}
|
|
recv_size += ret;
|
|
if (recv_size >= size)
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Receive all by TCP
|
|
bool RecvAll(SOCK *sock, void *data, UINT size, bool secure)
|
|
{
|
|
UINT recv_size, sz, ret;
|
|
// Validate arguments
|
|
if (sock == NULL || data == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
if (size == 0)
|
|
{
|
|
return true;
|
|
}
|
|
if (sock->AsyncMode)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
recv_size = 0;
|
|
|
|
while (true)
|
|
{
|
|
sz = size - recv_size;
|
|
ret = Recv(sock, (UCHAR *)data + recv_size, sz, secure);
|
|
if (ret == 0)
|
|
{
|
|
return false;
|
|
}
|
|
if (ret == SOCK_LATER)
|
|
{
|
|
// I suppose that this is safe because the RecvAll() function is used only
|
|
// if the sock->AsyncMode == true. And the Recv() function may return
|
|
// SOCK_LATER only if the sock->AsyncMode == false. Therefore the call of
|
|
// Recv() function in the RecvAll() function never returns SOCK_LATER.
|
|
return false;
|
|
}
|
|
recv_size += ret;
|
|
if (recv_size >= size)
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Send the TCP send buffer
|
|
bool SendNow(SOCK *sock, int secure)
|
|
{
|
|
bool ret;
|
|
// Validate arguments
|
|
if (sock == NULL || sock->AsyncMode != false)
|
|
{
|
|
return false;
|
|
}
|
|
if (sock->SendBuf->Size == 0)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
ret = SendAll(sock, sock->SendBuf->Buf, sock->SendBuf->Size, secure);
|
|
ClearBuf(sock->SendBuf);
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Append to the TCP send buffer
|
|
void SendAdd(SOCK *sock, void *data, UINT size)
|
|
{
|
|
// Validate arguments
|
|
if (sock == NULL || data == NULL || size == 0 || sock->AsyncMode != false)
|
|
{
|
|
return;
|
|
}
|
|
|
|
WriteBuf(sock->SendBuf, data, size);
|
|
}
|
|
|
|
// Send all by TCP
|
|
bool SendAll(SOCK *sock, void *data, UINT size, bool secure)
|
|
{
|
|
UCHAR *buf;
|
|
UINT sent_size;
|
|
UINT ret;
|
|
// Validate arguments
|
|
if (sock == NULL || data == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
if (sock->AsyncMode)
|
|
{
|
|
return false;
|
|
}
|
|
if (size == 0)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
buf = (UCHAR *)data;
|
|
sent_size = 0;
|
|
|
|
while (true)
|
|
{
|
|
ret = Send(sock, buf, size - sent_size, secure);
|
|
if (ret == 0)
|
|
{
|
|
return false;
|
|
}
|
|
sent_size += ret;
|
|
buf += ret;
|
|
if (sent_size >= size)
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Set the cipher algorithm name to want to use
|
|
void SetWantToUseCipher(SOCK *sock, char *name)
|
|
{
|
|
// Validate arguments
|
|
if (sock == NULL || name == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (sock->WaitToUseCipher)
|
|
{
|
|
Free(sock->WaitToUseCipher);
|
|
}
|
|
|
|
sock->WaitToUseCipher = CopyStr(name);
|
|
}
|
|
|
|
// Add all the chain certificates in the chain_certs directory
|
|
void AddChainSslCertOnDirectory(struct ssl_ctx_st *ctx)
|
|
{
|
|
wchar_t dirname[MAX_SIZE];
|
|
wchar_t exedir[MAX_SIZE];
|
|
wchar_t txtname[MAX_SIZE];
|
|
DIRLIST *dir;
|
|
LIST *o;
|
|
UINT i;
|
|
|
|
// Validate arguments
|
|
if (ctx == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
o = NewListFast(NULL);
|
|
|
|
GetDbDirW(exedir, sizeof(exedir));
|
|
|
|
CombinePathW(dirname, sizeof(dirname), exedir, L"chain_certs");
|
|
|
|
MakeDirExW(dirname);
|
|
|
|
CombinePathW(txtname, sizeof(txtname), dirname, L"Readme_Chain_Certs.txt");
|
|
|
|
if (IsFileExistsW(txtname) == false)
|
|
{
|
|
FileCopyW(L"|chain_certs.txt", txtname);
|
|
}
|
|
|
|
dir = EnumDirW(dirname);
|
|
|
|
if (dir != NULL)
|
|
{
|
|
for (i = 0; i < dir->NumFiles; i++)
|
|
{
|
|
DIRENT *e = dir->File[i];
|
|
|
|
if (e->Folder == false)
|
|
{
|
|
wchar_t tmp[MAX_SIZE];
|
|
X *x;
|
|
|
|
CombinePathW(tmp, sizeof(tmp), dirname, e->FileNameW);
|
|
|
|
x = FileToXW(tmp);
|
|
|
|
if (x != NULL)
|
|
{
|
|
UINT j;
|
|
bool exists = false;
|
|
UCHAR hash[SHA1_SIZE];
|
|
|
|
GetXDigest(x, hash, true);
|
|
|
|
for (j = 0; j < LIST_NUM(o); j++)
|
|
{
|
|
UCHAR *hash2 = LIST_DATA(o, j);
|
|
|
|
if (Cmp(hash, hash2, SHA1_SIZE) == 0)
|
|
{
|
|
exists = true;
|
|
}
|
|
}
|
|
|
|
if (exists == false)
|
|
{
|
|
AddChainSslCert(ctx, x);
|
|
|
|
Add(o, Clone(hash, SHA1_SIZE));
|
|
}
|
|
|
|
FreeX(x);
|
|
}
|
|
}
|
|
}
|
|
|
|
FreeDir(dir);
|
|
}
|
|
|
|
for (i = 0; i < LIST_NUM(o); i++)
|
|
{
|
|
UCHAR *hash = LIST_DATA(o, i);
|
|
|
|
Free(hash);
|
|
}
|
|
|
|
ReleaseList(o);
|
|
}
|
|
|
|
// Add the chain certificate
|
|
bool AddChainSslCert(struct ssl_ctx_st *ctx, X *x)
|
|
{
|
|
bool ret = false;
|
|
X *x_copy;
|
|
// Validate arguments
|
|
if (ctx == NULL || x == NULL)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
x_copy = CloneX(x);
|
|
|
|
if (x_copy != NULL)
|
|
{
|
|
if (x_copy->root_cert)
|
|
{
|
|
X509_STORE *store = SSL_CTX_get_cert_store(ctx);
|
|
X509_STORE_add_cert(store, x_copy->x509);
|
|
X509_free(x_copy->x509);
|
|
}
|
|
else
|
|
{
|
|
SSL_CTX_add_extra_chain_cert(ctx, x_copy->x509);
|
|
}
|
|
x_copy->do_not_free = true;
|
|
|
|
ret = true;
|
|
|
|
FreeX(x_copy);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Start a TCP-SSL communication
|
|
bool StartSSL(SOCK *sock, X *x, K *priv)
|
|
{
|
|
return StartSSLEx(sock, x, priv, 0, NULL);
|
|
}
|
|
bool StartSSLEx(SOCK *sock, X *x, K *priv, UINT ssl_timeout, char *sni_hostname)
|
|
{
|
|
X509 *x509;
|
|
EVP_PKEY *key;
|
|
UINT prev_timeout = 1024;
|
|
SSL_CTX *ssl_ctx;
|
|
|
|
#ifdef UNIX_SOLARIS
|
|
SOCKET_TIMEOUT_PARAM *ttparam;
|
|
#endif //UNIX_SOLARIS
|
|
|
|
// Validate arguments
|
|
if (sock == NULL)
|
|
{
|
|
Debug("StartSSL Error: #0\n");
|
|
return false;
|
|
}
|
|
if (sock->Connected && sock->Type == SOCK_INPROC && sock->ListenMode == false)
|
|
{
|
|
sock->SecureMode = true;
|
|
return true;
|
|
}
|
|
if (sock->Connected == false || sock->socket == INVALID_SOCKET ||
|
|
sock->ListenMode != false)
|
|
{
|
|
Debug("StartSSL Error: #1\n");
|
|
return false;
|
|
}
|
|
if (x != NULL && priv == NULL)
|
|
{
|
|
Debug("StartSSL Error: #2\n");
|
|
return false;
|
|
}
|
|
if (ssl_timeout == 0)
|
|
{
|
|
ssl_timeout = TIMEOUT_SSL_CONNECT;
|
|
}
|
|
|
|
if (sock->SecureMode)
|
|
{
|
|
//Debug("StartSSL Error: #3\n");
|
|
// SSL communication has already started
|
|
return true;
|
|
}
|
|
|
|
Lock(sock->ssl_lock);
|
|
if (sock->SecureMode)
|
|
{
|
|
//Debug("StartSSL Error: #4\n");
|
|
// SSL communication has already started
|
|
Unlock(sock->ssl_lock);
|
|
return true;
|
|
}
|
|
|
|
ssl_ctx = NewSSLCtx(sock->ServerMode);
|
|
|
|
Lock(openssl_lock);
|
|
{
|
|
if (sock->ServerMode)
|
|
{
|
|
#ifdef SSL_OP_NO_TLSv1
|
|
if (sock->SslAcceptSettings.Tls_Disable1_0)
|
|
{
|
|
SSL_CTX_set_options(ssl_ctx, SSL_OP_NO_TLSv1);
|
|
}
|
|
#endif // SSL_OP_NO_TLSv1
|
|
|
|
#ifdef SSL_OP_NO_TLSv1_1
|
|
if (sock->SslAcceptSettings.Tls_Disable1_1)
|
|
{
|
|
SSL_CTX_set_options(ssl_ctx, SSL_OP_NO_TLSv1_1);
|
|
}
|
|
#endif // SSL_OP_NO_TLSv1_1
|
|
|
|
#ifdef SSL_OP_NO_TLSv1_2
|
|
if (sock->SslAcceptSettings.Tls_Disable1_2)
|
|
{
|
|
SSL_CTX_set_options(ssl_ctx, SSL_OP_NO_TLSv1_2);
|
|
}
|
|
#endif // SSL_OP_NO_TLSv1_2
|
|
|
|
#ifdef SSL_OP_NO_TLSv1_3
|
|
if (sock->SslAcceptSettings.Tls_Disable1_3)
|
|
{
|
|
SSL_CTX_set_options(ssl_ctx, SSL_OP_NO_TLSv1_3);
|
|
}
|
|
#endif // SSL_OP_NO_TLSv1_3
|
|
|
|
#if OPENSSL_VERSION_NUMBER >= 0x10100000L && !defined(LIBRESSL_VERSION_NUMBER)
|
|
if (sock->SslAcceptSettings.Override_Security_Level)
|
|
{
|
|
SSL_CTX_set_security_level(ssl_ctx, sock->SslAcceptSettings.Override_Security_Level_Value);
|
|
}
|
|
#endif
|
|
|
|
Unlock(openssl_lock);
|
|
AddChainSslCertOnDirectory(ssl_ctx);
|
|
Lock(openssl_lock);
|
|
}
|
|
|
|
sock->ssl = SSL_new(ssl_ctx);
|
|
SSL_set_fd(sock->ssl, (int)sock->socket);
|
|
|
|
#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
|
|
if (sock->ServerMode == false)
|
|
{
|
|
if (IsEmptyStr(sni_hostname) == false)
|
|
{
|
|
// Set the SNI host name
|
|
SSL_set_tlsext_host_name(sock->ssl, sni_hostname);
|
|
}
|
|
}
|
|
#endif // SSL_CTRL_SET_TLSEXT_HOSTNAME
|
|
|
|
}
|
|
Unlock(openssl_lock);
|
|
|
|
if (x != NULL)
|
|
{
|
|
// Check the certificate and the private key
|
|
if (CheckXandK(x, priv))
|
|
{
|
|
// Use the certificate
|
|
x509 = x->x509;
|
|
key = priv->pkey;
|
|
|
|
Lock(openssl_lock);
|
|
{
|
|
SSL_use_certificate(sock->ssl, x509);
|
|
SSL_use_PrivateKey(sock->ssl, key);
|
|
}
|
|
Unlock(openssl_lock);
|
|
}
|
|
}
|
|
|
|
if (sock->WaitToUseCipher != NULL)
|
|
{
|
|
// Set the cipher algorithm name to want to use
|
|
Lock(openssl_lock);
|
|
{
|
|
if (SSL_set_cipher_list(sock->ssl, sock->WaitToUseCipher) == 0)
|
|
SSL_set_cipher_list(sock->ssl, DEFAULT_CIPHER_LIST);
|
|
}
|
|
Unlock(openssl_lock);
|
|
}
|
|
|
|
if (sock->ServerMode)
|
|
{
|
|
// Lock(ssl_connect_lock);
|
|
|
|
// Run the time-out thread for SOLARIS
|
|
#ifdef UNIX_SOLARIS
|
|
ttparam = NewSocketTimeout(sock);
|
|
#endif // UNIX_SOLARIS
|
|
|
|
// Server mode
|
|
if (SSL_accept(sock->ssl) <= 0)
|
|
{
|
|
|
|
// Stop the timeout thread
|
|
#ifdef UNIX_SOLARIS
|
|
FreeSocketTimeout(ttparam);
|
|
#endif // UNIX_SOLARIS
|
|
|
|
// Unlock(ssl_connect_lock);
|
|
// SSL-Accept failure
|
|
Lock(openssl_lock);
|
|
{
|
|
SSL_free(sock->ssl);
|
|
sock->ssl = NULL;
|
|
}
|
|
Unlock(openssl_lock);
|
|
|
|
Unlock(sock->ssl_lock);
|
|
Debug("StartSSL Error: #5\n");
|
|
FreeSSLCtx(ssl_ctx);
|
|
return false;
|
|
}
|
|
|
|
#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
|
|
#ifdef TLSEXT_NAMETYPE_host_name
|
|
if (true)
|
|
{
|
|
// Get the SNI host name
|
|
const char *sni_recv_hostname = SSL_get_servername(sock->ssl, TLSEXT_NAMETYPE_host_name);
|
|
|
|
if (IsEmptyStr((char *)sni_recv_hostname) == false)
|
|
{
|
|
StrCpy(sock->SniHostname, sizeof(sock->SniHostname), (char *)sni_recv_hostname);
|
|
}
|
|
}
|
|
#endif // TLSEXT_NAMETYPE_host_name
|
|
#endif // SSL_CTRL_SET_TLSEXT_HOSTNAME
|
|
|
|
// Stop the timeout thread
|
|
#ifdef UNIX_SOLARIS
|
|
FreeSocketTimeout(ttparam);
|
|
#endif // UNIX_SOLARIS
|
|
|
|
// Unlock(ssl_connect_lock);
|
|
}
|
|
else
|
|
{
|
|
prev_timeout = GetTimeout(sock);
|
|
SetTimeout(sock, ssl_timeout);
|
|
Lock(ssl_connect_lock);
|
|
// Client mode
|
|
if (SSL_connect(sock->ssl) <= 0)
|
|
{
|
|
Unlock(ssl_connect_lock);
|
|
// SSL-connect failure
|
|
Lock(openssl_lock);
|
|
{
|
|
SSL_free(sock->ssl);
|
|
sock->ssl = NULL;
|
|
}
|
|
Unlock(openssl_lock);
|
|
|
|
Unlock(sock->ssl_lock);
|
|
Debug("StartSSL Error: #5\n");
|
|
SetTimeout(sock, prev_timeout);
|
|
FreeSSLCtx(ssl_ctx);
|
|
return false;
|
|
}
|
|
Unlock(ssl_connect_lock);
|
|
SetTimeout(sock, prev_timeout);
|
|
}
|
|
|
|
// SSL communication is initiated
|
|
sock->SecureMode = true;
|
|
|
|
// Get the certificate of the remote host
|
|
Lock(openssl_lock);
|
|
{
|
|
x509 = SSL_get_peer_certificate(sock->ssl);
|
|
|
|
sock->SslVersion = SSL_get_version(sock->ssl);
|
|
}
|
|
Unlock(openssl_lock);
|
|
|
|
if (x509 == NULL)
|
|
{
|
|
// The certificate does not exist on the remote host
|
|
sock->RemoteX = NULL;
|
|
}
|
|
else
|
|
{
|
|
// Got a certificate
|
|
sock->RemoteX = X509ToX(x509);
|
|
}
|
|
|
|
// Get the certificate of local host
|
|
Lock(openssl_lock);
|
|
{
|
|
x509 = SSL_get_certificate(sock->ssl);
|
|
}
|
|
Unlock(openssl_lock);
|
|
|
|
if (x509 == NULL)
|
|
{
|
|
// The certificate does not exist on the remote host
|
|
sock->LocalX = NULL;
|
|
}
|
|
else
|
|
{
|
|
X *local_x;
|
|
// Got a certificate
|
|
local_x = X509ToX(x509);
|
|
local_x->do_not_free = true;
|
|
sock->LocalX = CloneX(local_x);
|
|
FreeX(local_x);
|
|
}
|
|
|
|
// Automatic retry mode
|
|
SSL_set_mode(sock->ssl, SSL_MODE_AUTO_RETRY);
|
|
|
|
// Strange flag
|
|
SSL_set_mode(sock->ssl, SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER);
|
|
|
|
sock->ssl_ctx = ssl_ctx;
|
|
|
|
// Get the algorithm name used to encrypt
|
|
Lock(openssl_lock);
|
|
{
|
|
sock->CipherName = CopyStr((char *)SSL_get_cipher(sock->ssl));
|
|
}
|
|
Unlock(openssl_lock);
|
|
|
|
Unlock(sock->ssl_lock);
|
|
|
|
#ifdef ENABLE_SSL_LOGGING
|
|
if (sock->ServerMode)
|
|
{
|
|
SockEnableSslLogging(sock);
|
|
}
|
|
#endif // ENABLE_SSL_LOGGING
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
|
|
#ifdef ENABLE_SSL_LOGGING
|
|
|
|
// Enable SSL logging
|
|
void SockEnableSslLogging(SOCK *s)
|
|
{
|
|
char dirname[MAX_PATH];
|
|
char tmp[MAX_PATH];
|
|
char dtstr[MAX_PATH];
|
|
char fn1[MAX_PATH], fn2[MAX_PATH];
|
|
// Validate arguments
|
|
if (s == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (s->IsSslLoggingEnabled)
|
|
{
|
|
return;
|
|
}
|
|
|
|
s->IsSslLoggingEnabled = true;
|
|
|
|
GetDateTimeStrMilli64ForFileName(dtstr, sizeof(dtstr), LocalTime64());
|
|
Format(tmp, sizeof(tmp), "%s__%r_%u__%r_%u", dtstr,
|
|
&s->LocalIP, s->LocalPort, &s->RemoteIP, s->RemotePort);
|
|
|
|
CombinePath(dirname, sizeof(dirname), SSL_LOGGING_DIRNAME, tmp);
|
|
|
|
MakeDirEx(dirname);
|
|
|
|
CombinePath(fn1, sizeof(fn1), dirname, "send.c");
|
|
CombinePath(fn2, sizeof(fn2), dirname, "recv.c");
|
|
|
|
s->SslLogging_Send = FileCreate(fn1);
|
|
s->SslLogging_Recv = FileCreate(fn2);
|
|
|
|
s->SslLogging_Lock = NewLock();
|
|
}
|
|
|
|
// Close SSL logging
|
|
void SockCloseSslLogging(SOCK *s)
|
|
{
|
|
// Validate arguments
|
|
if (s == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (s->IsSslLoggingEnabled == false)
|
|
{
|
|
return;
|
|
}
|
|
|
|
s->IsSslLoggingEnabled = false;
|
|
|
|
FileClose(s->SslLogging_Recv);
|
|
s->SslLogging_Recv = NULL;
|
|
|
|
FileClose(s->SslLogging_Send);
|
|
s->SslLogging_Send = NULL;
|
|
|
|
DeleteLock(s->SslLogging_Lock);
|
|
s->SslLogging_Lock = NULL;
|
|
}
|
|
|
|
// Write SSL log
|
|
void SockWriteSslLog(SOCK *s, void *send_data, UINT send_size, void *recv_data, UINT recv_size)
|
|
{
|
|
// Validate arguments
|
|
if (s == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (s->IsSslLoggingEnabled == false)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Lock(s->SslLogging_Lock);
|
|
{
|
|
if (s->SslLogging_Send != NULL)
|
|
{
|
|
if (send_size >= 1 && send_data != NULL)
|
|
{
|
|
FileWrite(s->SslLogging_Send, send_data, send_size);
|
|
}
|
|
}
|
|
|
|
if (s->SslLogging_Recv != NULL)
|
|
{
|
|
if (recv_size >= 1 && recv_data != NULL)
|
|
{
|
|
FileWrite(s->SslLogging_Recv, recv_data, recv_size);
|
|
}
|
|
}
|
|
}
|
|
Unlock(s->SslLogging_Lock);
|
|
}
|
|
|
|
#endif // ENABLE_SSL_LOGGING
|
|
|
|
// Set the flag to indicate that the socket doesn't require reading
|
|
void SetNoNeedToRead(SOCK *sock)
|
|
{
|
|
// Validate arguments
|
|
if (sock == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
sock->NoNeedToRead = true;
|
|
}
|
|
|
|
// TCP-SSL receive
|
|
UINT SecureRecv(SOCK *sock, void *data, UINT size)
|
|
{
|
|
int ret, e = SSL_ERROR_NONE;
|
|
SSL *ssl;
|
|
|
|
#ifdef UNIX_SOLARIS
|
|
SOCKET_TIMEOUT_PARAM *ttparam;
|
|
#endif //UNIX_SOLARIS
|
|
|
|
ssl = sock->ssl;
|
|
|
|
if (sock->AsyncMode)
|
|
{
|
|
// Confirm whether the data is readable even 1 byte in the case of asynchronous mode.
|
|
// To read data results blocking, if there is no readable data.
|
|
// We must avoid blocking.
|
|
char c;
|
|
Lock(sock->ssl_lock);
|
|
{
|
|
if (sock->Connected == false)
|
|
{
|
|
Unlock(sock->ssl_lock);
|
|
Debug("%s %u SecureRecv() Disconnect\n", __FILE__, __LINE__);
|
|
return 0;
|
|
}
|
|
ret = SSL_peek(ssl, &c, sizeof(c));
|
|
}
|
|
Unlock(sock->ssl_lock);
|
|
if (ret == 0)
|
|
{
|
|
// The communication have been disconnected
|
|
Disconnect(sock);
|
|
Debug("%s %u SecureRecv() Disconnect\n", __FILE__, __LINE__);
|
|
return 0;
|
|
}
|
|
if (ret < 0)
|
|
{
|
|
// An error has occurred
|
|
e = SSL_get_error(ssl, ret);
|
|
if (e == SSL_ERROR_WANT_READ || e == SSL_ERROR_WANT_WRITE || e == SSL_ERROR_SSL)
|
|
{
|
|
if (e == SSL_ERROR_SSL
|
|
#if OPENSSL_VERSION_NUMBER < 0x10100000L
|
|
&&
|
|
sock->ssl->s3->send_alert[0] == SSL3_AL_FATAL &&
|
|
sock->ssl->s3->send_alert[0] != sock->Ssl_Init_Async_SendAlert[0] &&
|
|
sock->ssl->s3->send_alert[1] != sock->Ssl_Init_Async_SendAlert[1]
|
|
#endif
|
|
)
|
|
{
|
|
Debug("%s %u SSL Fatal Error on ASYNC socket !!!\n", __FILE__, __LINE__);
|
|
Disconnect(sock);
|
|
return 0;
|
|
}
|
|
// Packet has not arrived yet, that is not to be read
|
|
return SOCK_LATER;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Receive
|
|
Lock(sock->ssl_lock);
|
|
{
|
|
if (sock->Connected == false)
|
|
{
|
|
Unlock(sock->ssl_lock);
|
|
Debug("%s %u SecureRecv() Disconnect\n", __FILE__, __LINE__);
|
|
return 0;
|
|
}
|
|
|
|
#ifdef OS_UNIX
|
|
if (sock->AsyncMode == false)
|
|
{
|
|
sock->CallingThread = pthread_self();
|
|
}
|
|
#endif // OS_UNIX
|
|
|
|
// Run the time-out thread for SOLARIS
|
|
#ifdef UNIX_SOLARIS
|
|
ttparam = NewSocketTimeout(sock);
|
|
#endif // UNIX_SOLARIS
|
|
|
|
ret = SSL_read(ssl, data, size);
|
|
|
|
// Stop the timeout thread
|
|
#ifdef UNIX_SOLARIS
|
|
FreeSocketTimeout(ttparam);
|
|
#endif // UNIX_SOLARIS
|
|
|
|
|
|
#ifdef OS_UNIX
|
|
if (sock->AsyncMode == false)
|
|
{
|
|
sock->CallingThread = 0;
|
|
}
|
|
#endif // OS_UNIX
|
|
|
|
if (ret < 0)
|
|
{
|
|
e = SSL_get_error(ssl, ret);
|
|
}
|
|
|
|
}
|
|
Unlock(sock->ssl_lock);
|
|
|
|
#ifdef ENABLE_SSL_LOGGING
|
|
if (ret > 0)
|
|
{
|
|
SockWriteSslLog(sock, NULL, 0, data, ret);
|
|
}
|
|
#endif // ENABLE_SSL_LOGGING
|
|
|
|
if (ret > 0)
|
|
{
|
|
// Successful reception
|
|
sock->RecvSize += (UINT64)ret;
|
|
sock->RecvNum++;
|
|
|
|
return (UINT)ret;
|
|
}
|
|
if (ret == 0)
|
|
{
|
|
// Disconnect the communication
|
|
Disconnect(sock);
|
|
//Debug("%s %u SecureRecv() Disconnect\n", __FILE__, __LINE__);
|
|
return 0;
|
|
}
|
|
if (sock->AsyncMode)
|
|
{
|
|
if (e == SSL_ERROR_WANT_READ || e == SSL_ERROR_WANT_WRITE || e == SSL_ERROR_SSL)
|
|
{
|
|
if (e == SSL_ERROR_SSL
|
|
#if OPENSSL_VERSION_NUMBER < 0x10100000L
|
|
&&
|
|
sock->ssl->s3->send_alert[0] == SSL3_AL_FATAL &&
|
|
sock->ssl->s3->send_alert[0] != sock->Ssl_Init_Async_SendAlert[0] &&
|
|
sock->ssl->s3->send_alert[1] != sock->Ssl_Init_Async_SendAlert[1]
|
|
#endif
|
|
)
|
|
{
|
|
Debug("%s %u SSL Fatal Error on ASYNC socket !!!\n", __FILE__, __LINE__);
|
|
Disconnect(sock);
|
|
return 0;
|
|
}
|
|
|
|
// Packet has not yet arrived
|
|
return SOCK_LATER;
|
|
}
|
|
}
|
|
Disconnect(sock);
|
|
Debug("%s %u SecureRecv() Disconnect\n", __FILE__, __LINE__);
|
|
return 0;
|
|
}
|
|
|
|
// TCP-SSL transmission
|
|
UINT SecureSend(SOCK *sock, void *data, UINT size)
|
|
{
|
|
int ret, e = SSL_ERROR_NONE;
|
|
SSL *ssl;
|
|
ssl = sock->ssl;
|
|
|
|
if (sock->AsyncMode)
|
|
{
|
|
// Asynchronous mode
|
|
SSL_set_mode(ssl, SSL_MODE_ENABLE_PARTIAL_WRITE);
|
|
}
|
|
|
|
// Transmission
|
|
Lock(sock->ssl_lock);
|
|
{
|
|
if (sock->Connected == false)
|
|
{
|
|
Unlock(sock->ssl_lock);
|
|
Debug("%s %u SecureSend() Disconnect\n", __FILE__, __LINE__);
|
|
return 0;
|
|
}
|
|
|
|
ret = SSL_write(ssl, data, size);
|
|
if (ret < 0)
|
|
{
|
|
e = SSL_get_error(ssl, ret);
|
|
}
|
|
}
|
|
Unlock(sock->ssl_lock);
|
|
|
|
#ifdef ENABLE_SSL_LOGGING
|
|
if (ret > 0)
|
|
{
|
|
SockWriteSslLog(sock, data, ret, NULL, 0);
|
|
}
|
|
#endif // ENABLE_SSL_LOGGING
|
|
|
|
if (ret > 0)
|
|
{
|
|
// Successful transmission
|
|
sock->SendSize += (UINT64)ret;
|
|
sock->SendNum++;
|
|
sock->WriteBlocked = false;
|
|
return (UINT)ret;
|
|
}
|
|
if (ret == 0)
|
|
{
|
|
// Disconnect
|
|
Debug("%s %u SecureSend() Disconnect\n", __FILE__, __LINE__);
|
|
Disconnect(sock);
|
|
return 0;
|
|
}
|
|
|
|
if (sock->AsyncMode)
|
|
{
|
|
// Confirmation of the error value
|
|
if (e == SSL_ERROR_WANT_READ || e == SSL_ERROR_WANT_WRITE || e == SSL_ERROR_SSL)
|
|
{
|
|
sock->WriteBlocked = true;
|
|
return SOCK_LATER;
|
|
}
|
|
Debug("%s %u e=%u\n", __FILE__, __LINE__, e);
|
|
}
|
|
//Debug("%s %u SecureSend() Disconnect\n", __FILE__, __LINE__);
|
|
Disconnect(sock);
|
|
return 0;
|
|
}
|
|
|
|
// Peep the TCP
|
|
UINT Peek(SOCK *sock, void *data, UINT size)
|
|
{
|
|
SOCKET s;
|
|
int ret;
|
|
|
|
// Validate arguments
|
|
if (sock == NULL || data == NULL || size == 0)
|
|
{
|
|
return 0;
|
|
}
|
|
if (sock->Type == SOCK_INPROC)
|
|
{
|
|
return 0;
|
|
}
|
|
if (sock->Type != SOCK_TCP || sock->Connected == false || sock->ListenMode != false ||
|
|
sock->socket == INVALID_SOCKET)
|
|
{
|
|
return 0;
|
|
}
|
|
if (sock->AsyncMode)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
// Receive
|
|
s = sock->socket;
|
|
|
|
ret = recv(s, data, size, MSG_PEEK);
|
|
|
|
//Debug("Peek: %u\n", ret);
|
|
|
|
if (ret > 0)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
// TCP receive
|
|
UINT Recv(SOCK *sock, void *data, UINT size, bool secure)
|
|
{
|
|
SOCKET s;
|
|
int ret;
|
|
|
|
#ifdef UNIX_SOLARIS
|
|
SOCKET_TIMEOUT_PARAM *ttparam;
|
|
#endif //UNIX_SOLARIS
|
|
|
|
// Validate arguments
|
|
if (sock == NULL || data == NULL || size == 0)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
sock->NoNeedToRead = false;
|
|
|
|
if (sock->Type == SOCK_INPROC)
|
|
{
|
|
return RecvInProc(sock, data, size);
|
|
}
|
|
if (sock->Type != SOCK_TCP || sock->Connected == false || sock->ListenMode != false ||
|
|
sock->socket == INVALID_SOCKET)
|
|
{
|
|
return 0;
|
|
}
|
|
if (secure != false && sock->SecureMode == false)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (secure)
|
|
{
|
|
return SecureRecv(sock, data, size);
|
|
}
|
|
|
|
// Receive
|
|
s = sock->socket;
|
|
|
|
|
|
#ifdef OS_UNIX
|
|
if (sock->AsyncMode == false)
|
|
{
|
|
sock->CallingThread = pthread_self();
|
|
}
|
|
#endif // OS_UNIX
|
|
|
|
// Start of the timeout thread for SOLARIS
|
|
#ifdef UNIX_SOLARIS
|
|
ttparam = NewSocketTimeout(sock);
|
|
#endif // UNIX_SOLARIS
|
|
|
|
ret = recv(s, data, size, 0);
|
|
|
|
// Stop the timeout thread
|
|
#ifdef UNIX_SOLARIS
|
|
FreeSocketTimeout(ttparam);
|
|
#endif // UNIX_SOLARIS
|
|
|
|
#ifdef OS_UNIX
|
|
if (sock->AsyncMode == false)
|
|
{
|
|
sock->CallingThread = 0;
|
|
}
|
|
#endif // OS_UNIX
|
|
|
|
if (ret > 0)
|
|
{
|
|
// Successful reception
|
|
Lock(sock->lock);
|
|
{
|
|
sock->RecvSize += (UINT64)ret;
|
|
sock->SendNum++;
|
|
}
|
|
Unlock(sock->lock);
|
|
return (UINT)ret;
|
|
}
|
|
|
|
// Transmission failure
|
|
if (sock->AsyncMode)
|
|
{
|
|
// In asynchronous mode, examine the error
|
|
if (ret == SOCKET_ERROR)
|
|
{
|
|
#ifdef OS_WIN32
|
|
if (WSAGetLastError() == WSAEWOULDBLOCK)
|
|
{
|
|
// In blocking
|
|
return SOCK_LATER;
|
|
}
|
|
else
|
|
{
|
|
//Debug("Socket Error: %u\n", WSAGetLastError());
|
|
}
|
|
#else // OS_WIN32
|
|
if (errno == EAGAIN)
|
|
{
|
|
// In blocking
|
|
return SOCK_LATER;
|
|
}
|
|
#endif // OS_WIN32
|
|
}
|
|
}
|
|
|
|
// Disconnected
|
|
Disconnect(sock);
|
|
return 0;
|
|
}
|
|
|
|
// TCP transmission
|
|
UINT Send(SOCK *sock, void *data, UINT size, bool secure)
|
|
{
|
|
SOCKET s;
|
|
int ret;
|
|
// Validate arguments
|
|
if (sock == NULL || data == NULL || size == 0)
|
|
{
|
|
return 0;
|
|
}
|
|
if (sock->Type == SOCK_INPROC)
|
|
{
|
|
return SendInProc(sock, data, size);
|
|
}
|
|
size = MIN(size, MAX_SEND_BUF_MEM_SIZE);
|
|
if (sock->Type != SOCK_TCP || sock->Connected == false || sock->ListenMode != false ||
|
|
sock->socket == INVALID_SOCKET)
|
|
{
|
|
return 0;
|
|
}
|
|
if (secure != false && sock->SecureMode == false)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (secure)
|
|
{
|
|
return SecureSend(sock, data, size);
|
|
}
|
|
|
|
// Transmission
|
|
s = sock->socket;
|
|
ret = send(s, data, size, 0);
|
|
if (ret > 0)
|
|
{
|
|
// Successful transmission
|
|
Lock(sock->lock);
|
|
{
|
|
sock->SendSize += (UINT64)ret;
|
|
sock->SendNum++;
|
|
}
|
|
Unlock(sock->lock);
|
|
sock->WriteBlocked = false;
|
|
return (UINT)ret;
|
|
}
|
|
|
|
// Transmission failure
|
|
if (sock->AsyncMode)
|
|
{
|
|
// In asynchronous mode, examine the error
|
|
if (ret == SOCKET_ERROR)
|
|
{
|
|
#ifdef OS_WIN32
|
|
if (WSAGetLastError() == WSAEWOULDBLOCK)
|
|
{
|
|
// In blocking
|
|
sock->WriteBlocked = true;
|
|
return SOCK_LATER;
|
|
}
|
|
else
|
|
{
|
|
//Debug("Socket Error: %u\n", WSAGetLastError());
|
|
}
|
|
#else // OS_WIN32
|
|
if (errno == EAGAIN)
|
|
{
|
|
// In blocking
|
|
sock->WriteBlocked = true;
|
|
return SOCK_LATER;
|
|
}
|
|
#endif // OS_WIN32
|
|
}
|
|
}
|
|
|
|
// Disconnected
|
|
Disconnect(sock);
|
|
return 0;
|
|
}
|
|
|
|
// Get the time-out value (in milliseconds)
|
|
UINT GetTimeout(SOCK *sock)
|
|
{
|
|
// Validate arguments
|
|
if (sock == NULL)
|
|
{
|
|
return INFINITE;
|
|
}
|
|
if (sock->Type != SOCK_TCP && sock->Type != SOCK_INPROC)
|
|
{
|
|
return INFINITE;
|
|
}
|
|
|
|
return sock->TimeOut;
|
|
}
|
|
|
|
// Setting the time-out value (in milliseconds)
|
|
void SetTimeout(SOCK *sock, UINT timeout)
|
|
{
|
|
// Validate arguments
|
|
if (sock == NULL)
|
|
{
|
|
return;
|
|
}
|
|
if (sock->Type == SOCK_UDP)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (timeout == INFINITE)
|
|
{
|
|
timeout = TIMEOUT_INFINITE;
|
|
}
|
|
|
|
sock->TimeOut = timeout;
|
|
|
|
// Debug("SetTimeout(%u)\n",timeout);
|
|
|
|
if (sock->Type != SOCK_INPROC)
|
|
{
|
|
#ifdef OS_WIN32
|
|
setsockopt(sock->socket, SOL_SOCKET, SO_SNDTIMEO, (char *)&timeout, sizeof(UINT));
|
|
setsockopt(sock->socket, SOL_SOCKET, SO_RCVTIMEO, (char *)&timeout, sizeof(UINT));
|
|
#endif
|
|
|
|
#ifdef OS_UNIX
|
|
#ifndef UNIX_SOLARIS
|
|
{
|
|
struct timeval tv_timeout;
|
|
|
|
tv_timeout.tv_sec = timeout / 1000; // miliseconds to seconds
|
|
tv_timeout.tv_usec = (timeout % 1000) * 1000; // miliseconds to microseconds
|
|
|
|
(void)setsockopt(sock->socket, SOL_SOCKET, SO_SNDTIMEO, (char *)&tv_timeout, sizeof(tv_timeout));
|
|
(void)setsockopt(sock->socket, SOL_SOCKET, SO_RCVTIMEO, (char *)&tv_timeout, sizeof(tv_timeout));
|
|
}
|
|
#endif // UNIX_SOLARIS
|
|
#endif // OS_UNIX
|
|
}
|
|
}
|
|
|
|
// Disable GetHostName call by accepting new TCP connection
|
|
void DisableGetHostNameWhenAcceptInit()
|
|
{
|
|
disable_gethostname_by_accept = true;
|
|
}
|
|
|
|
// Initialize the connection acceptance
|
|
void AcceptInit(SOCK *s)
|
|
{
|
|
AcceptInitEx(s, false);
|
|
}
|
|
void AcceptInitEx(SOCK *s, bool no_lookup_hostname)
|
|
{
|
|
char tmp[MAX_SIZE];
|
|
// Validate arguments
|
|
if (s == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Zero(tmp, sizeof(tmp));
|
|
|
|
if (disable_gethostname_by_accept == false && no_lookup_hostname == false)
|
|
{
|
|
if (GetHostName(tmp, sizeof(tmp), &s->RemoteIP) == false ||
|
|
IsEmptyStr(tmp))
|
|
{
|
|
IPToStr(tmp, sizeof(tmp), &s->RemoteIP);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
IPToStr(tmp, sizeof(tmp), &s->RemoteIP);
|
|
}
|
|
|
|
if (s->RemoteHostname != NULL)
|
|
{
|
|
Free(s->RemoteHostname);
|
|
}
|
|
|
|
s->RemoteHostname = CopyStr(tmp);
|
|
}
|
|
|
|
// TCP connection acceptance (IPv4)
|
|
SOCK *Accept(SOCK *sock)
|
|
{
|
|
SOCK *ret;
|
|
SOCKET s, new_socket;
|
|
int size;
|
|
struct sockaddr_in addr;
|
|
bool true_flag = true;
|
|
// Validate arguments
|
|
if (sock == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
if (sock->Type == SOCK_INPROC)
|
|
{
|
|
return AcceptInProc(sock);
|
|
}
|
|
if (sock->Type == SOCK_REVERSE_LISTEN)
|
|
{
|
|
return AcceptReverse(sock);
|
|
}
|
|
if (sock->Type == SOCK_RUDP_LISTEN)
|
|
{
|
|
return AcceptRUDP(sock);
|
|
}
|
|
if (sock->ListenMode == false || sock->Type != SOCK_TCP || sock->ServerMode == false)
|
|
{
|
|
return NULL;
|
|
}
|
|
if (sock->CancelAccept)
|
|
{
|
|
return NULL;
|
|
}
|
|
if (sock->IPv6)
|
|
{
|
|
return Accept6(sock);
|
|
}
|
|
|
|
s = sock->socket;
|
|
if (s == INVALID_SOCKET)
|
|
{
|
|
return NULL;
|
|
}
|
|
Zero(&addr, sizeof(addr));
|
|
size = sizeof(addr);
|
|
|
|
#ifdef OS_UNIX
|
|
#if defined(UNIX_LINUX) || defined(UNIX_MACOS)
|
|
UnixIgnoreSignalForThread(SIGUSR1);
|
|
#endif // defined(UNIX_LINUX) || defined(UNIX_MACOS)
|
|
sock->CallingThread = pthread_self();
|
|
#endif // OS_UNIX
|
|
|
|
#ifdef OS_WIN32
|
|
if (sock->EnableConditionalAccept)
|
|
{
|
|
new_socket = Win32Accept(sock, s, (struct sockaddr *)&addr,(int *)&size, false);
|
|
}
|
|
else
|
|
{
|
|
new_socket = accept(s, (struct sockaddr *)&addr,(int *)&size);
|
|
}
|
|
#else // OS_WIN32
|
|
new_socket = accept(s, (struct sockaddr *)&addr,(int *)&size);
|
|
#endif // OS_WIN32
|
|
|
|
#ifdef OS_UNIX
|
|
sock->CallingThread = 0;
|
|
#endif // OS_UNIX
|
|
|
|
if (new_socket == INVALID_SOCKET)
|
|
{
|
|
if (sock->CancelAccept)
|
|
{
|
|
sock->AcceptCanceled = true;
|
|
}
|
|
return NULL;
|
|
}
|
|
if (sock->CancelAccept)
|
|
{
|
|
sock->AcceptCanceled = true;
|
|
closesocket(new_socket);
|
|
return NULL;
|
|
}
|
|
|
|
ret = NewSock();
|
|
ret->socket = new_socket;
|
|
ret->Connected = true;
|
|
ret->AsyncMode = false;
|
|
ret->Type = SOCK_TCP;
|
|
ret->ServerMode = true;
|
|
ret->SecureMode = false;
|
|
|
|
// Configuring the TCP options
|
|
(void)setsockopt(ret->socket, IPPROTO_TCP, TCP_NODELAY, (char *)&true_flag, sizeof(bool));
|
|
|
|
// Initialization of the time-out value
|
|
SetTimeout(ret, TIMEOUT_INFINITE);
|
|
|
|
// Socket information
|
|
QuerySocketInformation(ret);
|
|
|
|
if (IsLocalHostIP(&ret->RemoteIP) == false)
|
|
{
|
|
ret->IpClientAdded = true;
|
|
AddIpClient(&ret->RemoteIP);
|
|
}
|
|
|
|
if (IsZeroIp(&sock->LocalIP) == false && IsLocalHostIP(&sock->LocalIP) == false)
|
|
{
|
|
IP current_ip;
|
|
|
|
if (GetCurrentGlobalIP(¤t_ip, false) == false)
|
|
{
|
|
SetCurrentGlobalIP(&sock->LocalIP, false);
|
|
}
|
|
}
|
|
|
|
StrCpy(ret->UnderlayProtocol, sizeof(ret->UnderlayProtocol), SOCK_UNDERLAY_NATIVE_V4);
|
|
|
|
AddProtocolDetailsStr(ret->ProtocolDetails, sizeof(ret->ProtocolDetails), "IPv4");
|
|
|
|
return ret;
|
|
}
|
|
|
|
// TCP connection acceptance (IPv6)
|
|
SOCK *Accept6(SOCK *sock)
|
|
{
|
|
SOCK *ret;
|
|
SOCKET s, new_socket;
|
|
int size;
|
|
struct sockaddr_in6 addr;
|
|
// Validate arguments
|
|
if (sock == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
if (sock->ListenMode == false || sock->Type != SOCK_TCP || sock->ServerMode == false)
|
|
{
|
|
return NULL;
|
|
}
|
|
if (sock->CancelAccept)
|
|
{
|
|
return NULL;
|
|
}
|
|
if (sock->IPv6 == false)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
s = sock->socket;
|
|
if (s == INVALID_SOCKET)
|
|
{
|
|
return NULL;
|
|
}
|
|
Zero(&addr, sizeof(addr));
|
|
size = sizeof(addr);
|
|
|
|
#ifdef OS_UNIX
|
|
#if defined(UNIX_LINUX) || defined(UNIX_MACOS)
|
|
UnixIgnoreSignalForThread(SIGUSR1);
|
|
#endif // defined(UNIX_LINUX) || defined(UNIX_MACOS)
|
|
sock->CallingThread = pthread_self();
|
|
#endif // OS_UNIX
|
|
|
|
#ifdef OS_WIN32
|
|
if (sock->EnableConditionalAccept)
|
|
{
|
|
new_socket = Win32Accept(sock, s, (struct sockaddr *)&addr,(int *)&size, true);
|
|
}
|
|
else
|
|
{
|
|
new_socket = accept(s, (struct sockaddr *)&addr,(int *)&size);
|
|
}
|
|
#else // OS_WIN32
|
|
new_socket = accept(s, (struct sockaddr *)&addr,(int *)&size);
|
|
#endif // OS_WIN32
|
|
|
|
#ifdef OS_UNIX
|
|
sock->CallingThread = 0;
|
|
#endif // OS_UNIX
|
|
|
|
if (new_socket == INVALID_SOCKET)
|
|
{
|
|
if (sock->CancelAccept)
|
|
{
|
|
sock->AcceptCanceled = true;
|
|
}
|
|
return NULL;
|
|
}
|
|
if (sock->CancelAccept)
|
|
{
|
|
sock->AcceptCanceled = true;
|
|
closesocket(new_socket);
|
|
return NULL;
|
|
}
|
|
|
|
ret = NewSock();
|
|
ret->socket = new_socket;
|
|
ret->Connected = true;
|
|
ret->AsyncMode = false;
|
|
ret->Type = SOCK_TCP;
|
|
ret->ServerMode = true;
|
|
ret->SecureMode = false;
|
|
|
|
// Configuring the TCP options
|
|
bool true_flag = true;
|
|
(void)setsockopt(ret->socket, IPPROTO_TCP, TCP_NODELAY, (char *)&true_flag, sizeof(bool));
|
|
|
|
// Initialize the time-out value
|
|
SetTimeout(ret, TIMEOUT_INFINITE);
|
|
|
|
// Socket information
|
|
QuerySocketInformation(ret);
|
|
|
|
if (IsLocalHostIP(&ret->RemoteIP) == false)
|
|
{
|
|
ret->IpClientAdded = true;
|
|
AddIpClient(&ret->RemoteIP);
|
|
}
|
|
if (IsZeroIp(&sock->LocalIP) == false && IsLocalHostIP(&sock->LocalIP) == false)
|
|
{
|
|
IP current_ip;
|
|
|
|
if (GetCurrentGlobalIP(¤t_ip, true) == false)
|
|
{
|
|
SetCurrentGlobalIP(&sock->LocalIP, true);
|
|
}
|
|
}
|
|
|
|
StrCpy(ret->UnderlayProtocol, sizeof(ret->UnderlayProtocol), SOCK_UNDERLAY_NATIVE_V6);
|
|
|
|
AddProtocolDetailsStr(ret->ProtocolDetails, sizeof(ret->ProtocolDetails), "IPv6");
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Standby for TCP (IPv6)
|
|
SOCK *ListenEx6(UINT port, bool local_only)
|
|
{
|
|
return ListenEx62(port, local_only, false);
|
|
}
|
|
SOCK *ListenEx62(UINT port, bool local_only, bool enable_ca)
|
|
{
|
|
SOCKET s;
|
|
SOCK *sock;
|
|
struct sockaddr_in6 addr;
|
|
struct in6_addr in;
|
|
IP localhost;
|
|
UINT backlog = SOMAXCONN;
|
|
// Validate arguments
|
|
if (port == 0 || port >= 65536)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
#ifdef OS_WIN32
|
|
if (MsIsVista() == false)
|
|
{
|
|
// Disable the Conditional Accept due to a bug in Windows
|
|
enable_ca = false;
|
|
}
|
|
#endif // OS_WIN32
|
|
|
|
// Initialization
|
|
Zero(&addr, sizeof(addr));
|
|
Zero(&in, sizeof(in));
|
|
GetLocalHostIP6(&localhost);
|
|
|
|
addr.sin6_port = htons((UINT)port);
|
|
addr.sin6_family = AF_INET6;
|
|
|
|
if (local_only)
|
|
{
|
|
IPToInAddr6(&addr.sin6_addr, &localhost);
|
|
|
|
enable_ca = false;
|
|
}
|
|
|
|
// Creating a socket
|
|
s = socket(AF_INET6, SOCK_STREAM, 0);
|
|
if (s == INVALID_SOCKET)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
bool true_flag = true;
|
|
#ifdef OS_UNIX
|
|
// It is necessary to set the IPv6 Only flag on a UNIX system
|
|
(void)setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &true_flag, sizeof(true_flag));
|
|
// This only have enabled for UNIX system since there is a bug
|
|
// in the implementation of REUSEADDR in Windows OS
|
|
(void)setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (char *)&true_flag, sizeof(bool));
|
|
#endif // OS_UNIX
|
|
|
|
if (bind(s, (struct sockaddr *)&addr, sizeof(struct sockaddr_in6)) != 0)
|
|
{
|
|
// Bind failure
|
|
closesocket(s);
|
|
return NULL;
|
|
}
|
|
|
|
#ifdef OS_WIN32
|
|
if (enable_ca)
|
|
{
|
|
if (MsIsWinXPOrGreater())
|
|
{
|
|
setsockopt(s, SOL_SOCKET, SO_CONDITIONAL_ACCEPT, (char *)&true_flag, sizeof(bool));
|
|
|
|
backlog = 1;
|
|
}
|
|
}
|
|
#endif // OS_WIN32
|
|
|
|
if (listen(s, backlog))
|
|
{
|
|
// Listen failure
|
|
closesocket(s);
|
|
return NULL;
|
|
}
|
|
|
|
// Success
|
|
sock = NewSock();
|
|
sock->Connected = false;
|
|
sock->AsyncMode = false;
|
|
sock->ServerMode = true;
|
|
sock->Type = SOCK_TCP;
|
|
sock->socket = s;
|
|
sock->ListenMode = true;
|
|
sock->SecureMode = false;
|
|
sock->LocalPort = port;
|
|
sock->IPv6 = true;
|
|
sock->LocalOnly = local_only;
|
|
sock->EnableConditionalAccept = enable_ca;
|
|
|
|
return sock;
|
|
}
|
|
|
|
// Standby for the TCP
|
|
SOCK *Listen(UINT port)
|
|
{
|
|
return ListenEx(port, false);
|
|
}
|
|
SOCK *ListenEx(UINT port, bool local_only)
|
|
{
|
|
return ListenEx2(port, local_only, false, NULL);
|
|
}
|
|
SOCK *ListenEx2(UINT port, bool local_only, bool enable_ca, IP *listen_ip)
|
|
{
|
|
SOCKET s;
|
|
SOCK *sock;
|
|
struct sockaddr_in addr;
|
|
struct in_addr in;
|
|
IP localhost;
|
|
UINT backlog = SOMAXCONN;
|
|
// Validate arguments
|
|
if (port == 0 || port >= 65536)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
#ifdef OS_WIN32
|
|
if (MsIsVista() == false)
|
|
{
|
|
// Disable the Conditional Accept due to a bug in Windows
|
|
enable_ca = false;
|
|
}
|
|
#endif // OS_WIN32
|
|
|
|
// Initialization
|
|
Zero(&addr, sizeof(addr));
|
|
Zero(&in, sizeof(in));
|
|
SetIP(&localhost, 127, 0, 0, 1);
|
|
|
|
addr.sin_port = htons((UINT)port);
|
|
if (listen_ip == NULL)
|
|
{
|
|
*((UINT *)&addr.sin_addr) = htonl(INADDR_ANY);
|
|
}
|
|
else
|
|
{
|
|
IPToInAddr(&addr.sin_addr, listen_ip);
|
|
}
|
|
addr.sin_family = AF_INET;
|
|
|
|
if (local_only)
|
|
{
|
|
IPToInAddr(&addr.sin_addr, &localhost);
|
|
|
|
enable_ca = false;
|
|
}
|
|
|
|
// Creating a socket
|
|
s = socket(AF_INET, SOCK_STREAM, 0);
|
|
if (s == INVALID_SOCKET)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
bool true_flag = true;
|
|
#ifdef OS_UNIX
|
|
// This only have enabled for UNIX system since there is a bug
|
|
// in the implementation of REUSEADDR in Windows OS
|
|
(void)setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (char *)&true_flag, sizeof(bool));
|
|
#endif // OS_UNIX
|
|
|
|
if (bind(s, (struct sockaddr *)&addr, sizeof(struct sockaddr_in)) != 0)
|
|
{
|
|
// Bind failure
|
|
closesocket(s);
|
|
return NULL;
|
|
}
|
|
|
|
#ifdef OS_WIN32
|
|
if (enable_ca)
|
|
{
|
|
if (MsIsWinXPOrGreater())
|
|
{
|
|
setsockopt(s, SOL_SOCKET, SO_CONDITIONAL_ACCEPT, (char *)&true_flag, sizeof(bool));
|
|
|
|
backlog = 1;
|
|
}
|
|
}
|
|
#endif // OS_WIN32
|
|
|
|
if (listen(s, backlog))
|
|
{
|
|
// Listen failure
|
|
closesocket(s);
|
|
return NULL;
|
|
}
|
|
|
|
// Success
|
|
sock = NewSock();
|
|
sock->Connected = false;
|
|
sock->AsyncMode = false;
|
|
sock->ServerMode = true;
|
|
sock->Type = SOCK_TCP;
|
|
sock->socket = s;
|
|
sock->ListenMode = true;
|
|
sock->SecureMode = false;
|
|
sock->LocalPort = port;
|
|
sock->LocalOnly = local_only;
|
|
sock->EnableConditionalAccept = enable_ca;
|
|
|
|
return sock;
|
|
}
|
|
|
|
// TCP disconnect
|
|
void Disconnect(SOCK *sock)
|
|
{
|
|
SOCKET s;
|
|
// Validate arguments
|
|
if (sock == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
sock->Disconnecting = true;
|
|
|
|
#ifdef ENABLE_SSL_LOGGING
|
|
SockCloseSslLogging(sock);
|
|
#endif // ENABLE_SSL_LOGGING
|
|
|
|
#ifdef OS_UNIX
|
|
UnixFreeAsyncSocket(sock);
|
|
#endif // UnixFreeAsyncSocket
|
|
|
|
if (sock->Type == SOCK_TCP && sock->ListenMode)
|
|
{
|
|
bool no_tcp_check_port = false;
|
|
|
|
// Connect to localhost if the socket is in listening
|
|
sock->CancelAccept = true;
|
|
|
|
#if defined(UNIX_LINUX) || defined(UNIX_MACOS)
|
|
{
|
|
pthread_t t = sock->CallingThread;
|
|
|
|
// Send a signal to the socket to abort accept() forcibly on Linux
|
|
if (t != 0)
|
|
{
|
|
pthread_kill(t, SIGUSR1);
|
|
|
|
SleepThread(200);
|
|
}
|
|
}
|
|
#endif // defined(UNIX_LINUX) || defined(UNIX_MACOS)
|
|
|
|
#ifdef OS_WIN32
|
|
if (sock->hAcceptEvent != NULL)
|
|
{
|
|
SetEvent(sock->hAcceptEvent);
|
|
|
|
no_tcp_check_port = true;
|
|
}
|
|
#endif // OS_WIN32
|
|
|
|
if (sock->AcceptCanceled == false)
|
|
{
|
|
if (no_tcp_check_port == false)
|
|
{
|
|
if (sock->IPv6 == false)
|
|
{
|
|
CheckTCPPort("127.0.0.1", sock->LocalPort);
|
|
}
|
|
else
|
|
{
|
|
CheckTCPPort("::1", sock->LocalPort);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
Lock(disconnect_function_lock);
|
|
|
|
Lock(sock->disconnect_lock);
|
|
|
|
if (sock->Type == SOCK_TCP)
|
|
{
|
|
if (sock->socket != INVALID_SOCKET)
|
|
{
|
|
// Forced disconnection flag
|
|
#ifdef SO_DONTLINGER
|
|
bool true_flag = true;
|
|
(void)setsockopt(sock->socket, SOL_SOCKET, SO_DONTLINGER, (char *)&true_flag, sizeof(bool));
|
|
#else // SO_DONTLINGER
|
|
bool false_flag = false;
|
|
(void)setsockopt(sock->socket, SOL_SOCKET, SO_LINGER, (char *)&false_flag, sizeof(bool));
|
|
#endif // SO_DONTLINGER
|
|
// setsockopt(sock->socket, SOL_SOCKET, SO_REUSEADDR, (char *)&true_flag, sizeof(bool));
|
|
}
|
|
|
|
// TCP socket
|
|
Lock(sock->lock);
|
|
{
|
|
if (sock->socket == INVALID_SOCKET)
|
|
{
|
|
Unlock(sock->lock);
|
|
Unlock(sock->disconnect_lock);
|
|
Unlock(disconnect_function_lock);
|
|
return;
|
|
}
|
|
s = sock->socket;
|
|
|
|
if (sock->Connected)
|
|
{
|
|
struct linger ling;
|
|
Zero(&ling, sizeof(ling));
|
|
|
|
|
|
#if 0
|
|
// SSL disconnect
|
|
Lock(sock->ssl_lock);
|
|
{
|
|
if (sock->SecureMode)
|
|
{
|
|
SSL_shutdown(sock->ssl);
|
|
}
|
|
}
|
|
Unlock(sock->ssl_lock);
|
|
#endif
|
|
// Disconnect
|
|
shutdown(s, 2);
|
|
}
|
|
|
|
// Close the socket
|
|
closesocket(s);
|
|
|
|
#ifdef OS_UNIX
|
|
#ifdef FIX_SSL_BLOCKING
|
|
if (sock->CallingThread != NULL)
|
|
{
|
|
pthread_kill(sock->CallingThread, 64);
|
|
}
|
|
#endif // FIX_SSL_BLOCKING
|
|
#endif // OS_UNIX
|
|
|
|
// Release the SSL
|
|
Lock(sock->ssl_lock);
|
|
{
|
|
if (sock->SecureMode)
|
|
{
|
|
if (sock->ssl != NULL)
|
|
{
|
|
Lock(openssl_lock);
|
|
{
|
|
SSL_free(sock->ssl);
|
|
FreeSSLCtx(sock->ssl_ctx);
|
|
}
|
|
Unlock(openssl_lock);
|
|
sock->ssl = NULL;
|
|
sock->ssl_ctx = NULL;
|
|
}
|
|
sock->Connected = false;
|
|
sock->SecureMode = false;
|
|
}
|
|
}
|
|
Unlock(sock->ssl_lock);
|
|
|
|
// Initialization
|
|
sock->socket = INVALID_SOCKET;
|
|
sock->Type = 0;
|
|
sock->AsyncMode = false;
|
|
sock->Connected = false;
|
|
sock->ListenMode = false;
|
|
sock->SecureMode = false;
|
|
|
|
if (sock->IpClientAdded)
|
|
{
|
|
DelIpClient(&sock->RemoteIP);
|
|
sock->IpClientAdded = false;
|
|
}
|
|
}
|
|
Unlock(sock->lock);
|
|
|
|
if (sock->BulkSendTube != NULL)
|
|
{
|
|
TubeDisconnect(sock->BulkSendTube);
|
|
}
|
|
|
|
if (sock->BulkRecvTube != NULL)
|
|
{
|
|
TubeDisconnect(sock->BulkRecvTube);
|
|
}
|
|
}
|
|
else if (sock->Type == SOCK_UDP)
|
|
{
|
|
// UDP socket
|
|
Lock(sock->lock);
|
|
{
|
|
if (sock->socket == INVALID_SOCKET)
|
|
{
|
|
Unlock(sock->lock);
|
|
Unlock(sock->disconnect_lock);
|
|
Unlock(disconnect_function_lock);
|
|
return;
|
|
}
|
|
|
|
s = sock->socket;
|
|
|
|
// Close the socket
|
|
closesocket(s);
|
|
|
|
// Initialization
|
|
sock->socket = INVALID_SOCKET;
|
|
sock->Type = 0;
|
|
sock->AsyncMode = false;
|
|
sock->Connected = false;
|
|
sock->ListenMode = false;
|
|
sock->SecureMode = false;
|
|
}
|
|
Unlock(sock->lock);
|
|
}
|
|
else if (sock->Type == SOCK_INPROC)
|
|
{
|
|
// In-process socket
|
|
if (sock->ListenMode)
|
|
{
|
|
// Stop the Accept process
|
|
sock->CancelAccept = true;
|
|
|
|
Set(sock->InProcAcceptEvent);
|
|
|
|
LockQueue(sock->InProcAcceptQueue);
|
|
{
|
|
while (true)
|
|
{
|
|
SOCK *ss = GetNext(sock->InProcAcceptQueue);
|
|
if (ss == NULL)
|
|
{
|
|
break;
|
|
}
|
|
|
|
Disconnect(ss);
|
|
ReleaseSock(ss);
|
|
}
|
|
}
|
|
UnlockQueue(sock->InProcAcceptQueue);
|
|
}
|
|
else
|
|
{
|
|
// Disconnect the Tube
|
|
TubeDisconnect(sock->SendTube);
|
|
TubeDisconnect(sock->RecvTube);
|
|
|
|
sock->socket = INVALID_SOCKET;
|
|
sock->AsyncMode = false;
|
|
sock->Connected = false;
|
|
sock->ListenMode = false;
|
|
sock->SecureMode = false;
|
|
}
|
|
}
|
|
else if (sock->Type == SOCK_RUDP_LISTEN)
|
|
{
|
|
// RUDP Listen socket
|
|
if (sock->ListenMode)
|
|
{
|
|
// Stop the Accept process
|
|
sock->CancelAccept = true;
|
|
|
|
Set(sock->R_UDP_Stack->NewSockConnectEvent);
|
|
|
|
sock->R_UDP_Stack->Halt = true;
|
|
Set(sock->R_UDP_Stack->HaltEvent);
|
|
SetSockEvent(sock->R_UDP_Stack->SockEvent);
|
|
}
|
|
}
|
|
else if (sock->Type == SOCK_REVERSE_LISTEN)
|
|
{
|
|
// Reverse Listen socket
|
|
if (sock->ListenMode)
|
|
{
|
|
// Stop the Accept process
|
|
sock->CancelAccept = true;
|
|
|
|
Set(sock->ReverseAcceptEvent);
|
|
|
|
LockQueue(sock->ReverseAcceptQueue);
|
|
{
|
|
while (true)
|
|
{
|
|
SOCK *ss = GetNext(sock->ReverseAcceptQueue);
|
|
if (ss == NULL)
|
|
{
|
|
break;
|
|
}
|
|
|
|
Disconnect(ss);
|
|
ReleaseSock(ss);
|
|
}
|
|
}
|
|
UnlockQueue(sock->ReverseAcceptQueue);
|
|
}
|
|
}
|
|
Unlock(sock->disconnect_lock);
|
|
|
|
Unlock(disconnect_function_lock);
|
|
}
|
|
|
|
typedef struct TCP_PORT_CHECK
|
|
{
|
|
REF *ref;
|
|
char hostname[MAX_SIZE];
|
|
UINT port;
|
|
bool ok;
|
|
} TCP_PORT_CHECK;
|
|
|
|
// Check whether the TCP port can be connected
|
|
bool CheckTCPPortEx(char *hostname, UINT port, UINT timeout)
|
|
{
|
|
SOCK *s;
|
|
// Validate arguments
|
|
if (hostname == NULL || port == 0 || port >= 65536)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (timeout == 0)
|
|
{
|
|
timeout = TIMEOUT_TCP_PORT_CHECK;
|
|
}
|
|
|
|
s = ConnectEx(hostname, port, timeout);
|
|
if (s == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
else
|
|
{
|
|
Disconnect(s);
|
|
ReleaseSock(s);
|
|
return true;
|
|
}
|
|
}
|
|
bool CheckTCPPort(char *hostname, UINT port)
|
|
{
|
|
return CheckTCPPortEx(hostname, port, TIMEOUT_TCP_PORT_CHECK);
|
|
}
|
|
|
|
#ifdef OS_UNIX
|
|
// Connection with timeout (UNIX version)
|
|
int connect_timeout(SOCKET s, struct sockaddr *addr, int size, int timeout, bool *cancel_flag)
|
|
{
|
|
SOCKSET set;
|
|
bool ok = false;
|
|
UINT64 start_time;
|
|
// Validate arguments
|
|
if (s == INVALID_SOCKET || addr == NULL)
|
|
{
|
|
return -1;
|
|
}
|
|
if (timeout == 0)
|
|
{
|
|
timeout = TIMEOUT_TCP_PORT_CHECK;
|
|
}
|
|
|
|
UnixSetSocketNonBlockingMode(s, true);
|
|
|
|
start_time = Tick64();
|
|
|
|
while (true)
|
|
{
|
|
int ret;
|
|
ret = connect(s, addr, size);
|
|
if (ret == 0 || errno == EISCONN)
|
|
{
|
|
ok = true;
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
if (((start_time + (UINT64)timeout) <= Tick64()) || (errno != EAGAIN && errno != EINPROGRESS && errno != EALREADY))
|
|
{
|
|
// Failure
|
|
break;
|
|
}
|
|
else if (*cancel_flag)
|
|
{
|
|
// Cancel
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
// Connecting
|
|
SleepThread(50);
|
|
UnixSelectInner(1, (UINT *)&s, 1, (UINT *)&s, 100);
|
|
}
|
|
}
|
|
}
|
|
|
|
UnixSetSocketNonBlockingMode(s, false);
|
|
|
|
if (ok)
|
|
{
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
return -1;
|
|
}
|
|
}
|
|
#else
|
|
// Connection with timeout (Win32 version)
|
|
int connect_timeout(SOCKET s, struct sockaddr *addr, int size, int timeout, bool *cancel_flag)
|
|
{
|
|
UINT64 start_time;
|
|
bool ok = false;
|
|
bool timeouted = false;
|
|
WSAEVENT hEvent;
|
|
UINT zero = 0;
|
|
UINT tmp = 0;
|
|
DWORD ret_size = 0;
|
|
bool is_nt = false;
|
|
// Validate arguments
|
|
if (s == INVALID_SOCKET || addr == NULL)
|
|
{
|
|
return -1;
|
|
}
|
|
if (timeout == 0)
|
|
{
|
|
timeout = TIMEOUT_TCP_PORT_CHECK;
|
|
}
|
|
|
|
is_nt = OS_IS_WINDOWS_NT(GetOsInfo()->OsType);
|
|
|
|
// Create an event
|
|
hEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
|
|
|
|
// Associate the socket with the event
|
|
WSAEventSelect(s, hEvent, FD_CONNECT);
|
|
|
|
start_time = Tick64();
|
|
|
|
while (true)
|
|
{
|
|
int ret;
|
|
|
|
ret = connect(s, addr, size);
|
|
|
|
if (ret == 0)
|
|
{
|
|
ok = true;
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
int err = WSAGetLastError();
|
|
//Debug("err=%u\n", err);
|
|
//Debug("cancel_flag=%u\n", *cancel_flag);
|
|
if (timeouted && ((err == WSAEALREADY) || (err == WSAEWOULDBLOCK && !is_nt)))
|
|
{
|
|
// Time-out
|
|
ok = false;
|
|
break;
|
|
}
|
|
if (*cancel_flag)
|
|
{
|
|
// Cancel
|
|
ok = false;
|
|
break;
|
|
}
|
|
if (err == WSAEISCONN || (err == WSAEINVAL && is_nt))
|
|
{
|
|
ok = true;
|
|
break;
|
|
}
|
|
if (((start_time + (UINT64)timeout) <= Tick64()) || (err != WSAEWOULDBLOCK && err != WSAEALREADY && (is_nt || err != WSAEINVAL)))
|
|
{
|
|
// Failure (timeout)
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
SleepThread(10);
|
|
// Connecting
|
|
if (WaitForSingleObject(hEvent, 100) == WAIT_OBJECT_0)
|
|
{
|
|
timeouted = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Remove the socket from the event
|
|
WSAEventSelect(s, hEvent, 0);
|
|
|
|
// Restore to synchronized socket
|
|
WSAIoctl(s, FIONBIO, &zero, sizeof(zero), &tmp, sizeof(tmp), &ret_size, NULL, NULL);
|
|
|
|
// Close the event
|
|
CloseHandle(hEvent);
|
|
|
|
if (ok)
|
|
{
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
return -1;
|
|
}
|
|
}
|
|
#endif // OS_UNIX
|
|
|
|
// Set the TOS value of the socket
|
|
void SetSockTos(SOCK *s, int tos)
|
|
{
|
|
// Validate arguments
|
|
if (s == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (s->CurrentTos == tos)
|
|
{
|
|
return;
|
|
}
|
|
|
|
#ifdef IP_TOS
|
|
(void)setsockopt(s->socket, IPPROTO_IP, IP_TOS, (char *)&tos, sizeof(int));
|
|
#endif // IP_TOS
|
|
|
|
s->CurrentTos = tos;
|
|
}
|
|
|
|
// Set the priority of the socket
|
|
void SetSockHighPriority(SOCK *s, bool flag)
|
|
{
|
|
// Validate arguments
|
|
if (s == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
SetSockTos(s, (flag ? 16 : 0));
|
|
}
|
|
|
|
// Connect to the IPv4 host using a socket
|
|
SOCKET ConnectTimeoutIPv4(IP *ip, UINT port, UINT timeout, bool *cancel_flag)
|
|
{
|
|
SOCKET s;
|
|
struct sockaddr_in sockaddr4;
|
|
struct in_addr addr4;
|
|
|
|
Zero(&sockaddr4, sizeof(sockaddr4));
|
|
Zero(&addr4, sizeof(addr4));
|
|
|
|
// Generate a sockaddr_in
|
|
IPToInAddr(&addr4, ip);
|
|
sockaddr4.sin_port = htons((USHORT)port);
|
|
sockaddr4.sin_family = AF_INET;
|
|
sockaddr4.sin_addr.s_addr = addr4.s_addr;
|
|
|
|
// Socket creation
|
|
s = socket(AF_INET, SOCK_STREAM, 0);
|
|
if (s != INVALID_SOCKET)
|
|
{
|
|
// Connection
|
|
if (connect_timeout(s, (struct sockaddr *)&sockaddr4, sizeof(struct sockaddr_in), timeout, cancel_flag) != 0)
|
|
{
|
|
// Connection failure
|
|
closesocket(s);
|
|
s = INVALID_SOCKET;
|
|
}
|
|
}
|
|
|
|
return s;
|
|
}
|
|
|
|
// Identify whether the HTTPS server to be connected is a SoftEther VPN
|
|
bool DetectIsServerSoftEtherVPN(SOCK *s)
|
|
{
|
|
HTTP_HEADER *h;
|
|
char ip_str[MAX_SIZE];
|
|
char *send_str;
|
|
UINT content_len;
|
|
BUF *recv_buf;
|
|
void *socket_buffer;
|
|
UINT socket_buffer_size = 32768;
|
|
bool ok = false;
|
|
// Validate arguments
|
|
if (s == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
IPToStr(ip_str, sizeof(ip_str), &s->RemoteIP);
|
|
|
|
// Request generation
|
|
h = NewHttpHeaderEx("GET", "/", "HTTP/1.1", true);
|
|
AddHttpValue(h, NewHttpValue("X-VPN", "1"));
|
|
AddHttpValue(h, NewHttpValue("Host", ip_str));
|
|
AddHttpValue(h, NewHttpValue("Keep-Alive", HTTP_KEEP_ALIVE));
|
|
AddHttpValue(h, NewHttpValue("Connection", "Keep-Alive"));
|
|
AddHttpValue(h, NewHttpValue("Accept-Language", "ja"));
|
|
AddHttpValue(h, NewHttpValue("User-Agent", DEFAULT_USER_AGENT));
|
|
AddHttpValue(h, NewHttpValue("Pragma", "no-cache"));
|
|
AddHttpValue(h, NewHttpValue("Cache-Control", "no-cache"));
|
|
|
|
|
|
|
|
send_str = HttpHeaderToStr(h);
|
|
FreeHttpHeader(h);
|
|
|
|
// Transmission
|
|
if (SendAll(s, send_str, StrLen(send_str), true) == false)
|
|
{
|
|
Free(send_str);
|
|
return false;
|
|
}
|
|
|
|
Free(send_str);
|
|
|
|
// Receive
|
|
h = RecvHttpHeader(s);
|
|
if (h == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// Get the length of the content
|
|
content_len = GetContentLength(h);
|
|
FreeHttpHeader(h);
|
|
|
|
if (content_len == 0 || content_len >= (1024 * 1024))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// Receive contents
|
|
recv_buf = NewBuf();
|
|
socket_buffer = Malloc(socket_buffer_size);
|
|
|
|
while (true)
|
|
{
|
|
UINT recvsize = MIN(socket_buffer_size, content_len - recv_buf->Size);
|
|
UINT size;
|
|
|
|
if (recvsize == 0)
|
|
{
|
|
ok = true;
|
|
break;
|
|
}
|
|
|
|
size = Recv(s, socket_buffer, recvsize, true);
|
|
if (size == 0)
|
|
{
|
|
// Disconnected
|
|
break;
|
|
}
|
|
|
|
WriteBuf(recv_buf, socket_buffer, size);
|
|
}
|
|
|
|
SeekBuf(recv_buf, 0, 0);
|
|
Free(socket_buffer);
|
|
|
|
if (ok)
|
|
{
|
|
// Examine to confirm whether the incoming data is a SoftEther VPN protocol
|
|
char tmp[1024];
|
|
|
|
Zero(tmp, sizeof(tmp));
|
|
|
|
Copy(tmp, recv_buf->Buf, MIN(recv_buf->Size, (sizeof(tmp) - 1)));
|
|
|
|
ok = false;
|
|
|
|
if (StartWith(tmp, http_detect_server_startwith))
|
|
{
|
|
ok = true;
|
|
}
|
|
else if (InStr(tmp, http_detect_server_tag_future))
|
|
{
|
|
ok = true;
|
|
}
|
|
}
|
|
|
|
FreeBuf(recv_buf);
|
|
|
|
return ok;
|
|
}
|
|
|
|
// TCP connection thread
|
|
void ConnectThreadForTcp(THREAD *thread, void *param)
|
|
{
|
|
SOCK *sock;
|
|
char hostname[MAX_SIZE];
|
|
CONNECT_TCP_RUDP_PARAM *p = (CONNECT_TCP_RUDP_PARAM *)param;
|
|
if (thread == NULL || p == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
// Delay
|
|
if (p->Delay >= 1)
|
|
{
|
|
WaitEx(NULL, p->Delay, p->CancelFlag);
|
|
}
|
|
|
|
// Connecting process
|
|
IPToStr(hostname, sizeof(hostname), &p->Ip);
|
|
sock = ConnectEx3(hostname, p->Port, p->Timeout, p->CancelFlag, NULL, NULL, false, true);
|
|
|
|
if (sock != NULL && p->Tcp_TryStartSsl)
|
|
{
|
|
bool ssl_ret = false;
|
|
|
|
p->Tcp_InNegotiation = true;
|
|
|
|
// Attempt the SSL negotiation to take this opportunity
|
|
Lock(p->CancelLock);
|
|
{
|
|
if ((*p->CancelFlag) == false)
|
|
{
|
|
p->CancelDisconnectSock = sock;
|
|
AddRef(sock->ref);
|
|
}
|
|
else
|
|
{
|
|
Debug("User Cancel to StartSSL.\n");
|
|
goto LABEL_CANCEL;
|
|
}
|
|
}
|
|
Unlock(p->CancelLock);
|
|
|
|
// Start the SSL communication
|
|
ssl_ret = StartSSLEx(sock, NULL, NULL, 0, p->Hostname);
|
|
|
|
if (ssl_ret)
|
|
{
|
|
// Identify whether the HTTPS server to be connected is a SoftEther VPN
|
|
SetTimeout(sock, (10 * 1000));
|
|
ssl_ret = DetectIsServerSoftEtherVPN(sock);
|
|
SetTimeout(sock, INFINITE);
|
|
|
|
if (ssl_ret == false)
|
|
{
|
|
Debug("DetectIsServerSoftEtherVPN Error.\n");
|
|
}
|
|
}
|
|
|
|
Lock(p->CancelLock);
|
|
{
|
|
ReleaseSock(p->CancelDisconnectSock);
|
|
p->CancelDisconnectSock = NULL;
|
|
}
|
|
LABEL_CANCEL:
|
|
Unlock(p->CancelLock);
|
|
|
|
if (ssl_ret == false)
|
|
{
|
|
// SSL negotiation failure
|
|
Disconnect(sock);
|
|
ReleaseSock(sock);
|
|
|
|
Debug("Fail to StartSSL.\n");
|
|
|
|
sock = NULL;
|
|
}
|
|
}
|
|
|
|
p->Result_Tcp_Sock = sock;
|
|
p->Ok = (p->Result_Tcp_Sock == NULL ? false : true);
|
|
p->FinishedTick = Tick64();
|
|
p->Finished = true;
|
|
p->Tcp_InNegotiation = false;
|
|
|
|
Set(p->FinishEvent);
|
|
}
|
|
|
|
// R-UDP over ICMP / over DNS connection thread
|
|
void ConnectThreadForOverDnsOrIcmp(THREAD *thread, void *param)
|
|
{
|
|
SOCK *sock;
|
|
CONNECT_TCP_RUDP_PARAM *p = (CONNECT_TCP_RUDP_PARAM *)param;
|
|
if (thread == NULL || p == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
// Delay
|
|
if (p->Delay >= 1)
|
|
{
|
|
WaitEx(NULL, p->Delay, p->CancelFlag);
|
|
}
|
|
|
|
// Connecting process
|
|
sock = NewRUDPClientDirect(p->SvcName, &p->Ip,
|
|
(p->RUdpProtocol == RUDP_PROTOCOL_DNS ? 53 : MAKE_SPECIAL_PORT(IP_PROTO_ICMPV4)),
|
|
&p->NatT_ErrorCode, p->Timeout, p->CancelFlag, NULL, NULL,
|
|
(p->RUdpProtocol == RUDP_PROTOCOL_DNS ? 0 : MAKE_SPECIAL_PORT(IP_PROTO_ICMPV4)),
|
|
(p->RUdpProtocol == RUDP_PROTOCOL_DNS ? true : false));
|
|
|
|
p->Result_Nat_T_Sock = sock;
|
|
p->Ok = (p->Result_Nat_T_Sock == NULL ? false : true);
|
|
p->FinishedTick = Tick64();
|
|
p->Finished = true;
|
|
|
|
Set(p->FinishEvent);
|
|
}
|
|
|
|
// R-UDP (via NAT-T) connection thread
|
|
void ConnectThreadForRUDP(THREAD *thread, void *param)
|
|
{
|
|
SOCK *sock;
|
|
CONNECT_TCP_RUDP_PARAM *p = (CONNECT_TCP_RUDP_PARAM *)param;
|
|
if (thread == NULL || p == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
// Delay
|
|
if (p->Delay >= 1)
|
|
{
|
|
WaitEx(NULL, p->Delay, p->CancelFlag);
|
|
}
|
|
|
|
// Connecting process
|
|
sock = NewRUDPClientNatT(p->SvcName, &p->Ip, &p->NatT_ErrorCode, p->Timeout, p->CancelFlag, p->HintStr, p->TargetHostname);
|
|
|
|
p->Result_Nat_T_Sock = sock;
|
|
p->Ok = (p->Result_Nat_T_Sock == NULL ? false : true);
|
|
p->FinishedTick = Tick64();
|
|
p->Finished = true;
|
|
|
|
Set(p->FinishEvent);
|
|
}
|
|
|
|
// TCP connection
|
|
SOCK *Connect(char *hostname, UINT port)
|
|
{
|
|
return ConnectEx(hostname, port, 0);
|
|
}
|
|
SOCK *ConnectEx(char *hostname, UINT port, UINT timeout)
|
|
{
|
|
return ConnectEx2(hostname, port, timeout, NULL);
|
|
}
|
|
SOCK *ConnectEx2(char *hostname, UINT port, UINT timeout, bool *cancel_flag)
|
|
{
|
|
return ConnectEx3(hostname, port, timeout, cancel_flag, NULL, NULL, false, true);
|
|
}
|
|
SOCK *ConnectEx3(char *hostname, UINT port, UINT timeout, bool *cancel_flag, char *nat_t_svc_name, UINT *nat_t_error_code, bool try_start_ssl, bool no_get_hostname)
|
|
{
|
|
return ConnectEx4(hostname, port, timeout, cancel_flag, nat_t_svc_name, nat_t_error_code, try_start_ssl, no_get_hostname, NULL);
|
|
}
|
|
SOCK *ConnectEx4(char *hostname, UINT port, UINT timeout, bool *cancel_flag, char *nat_t_svc_name, UINT *nat_t_error_code, bool try_start_ssl, bool no_get_hostname, IP *ret_ip)
|
|
{
|
|
SOCK *sock;
|
|
SOCKET s;
|
|
struct linger ling;
|
|
IP ip4;
|
|
IP ip6;
|
|
char tmp[MAX_SIZE];
|
|
IP current_ip;
|
|
bool is_ipv6 = false;
|
|
bool dummy = false;
|
|
bool use_natt = false;
|
|
char hostname_original[MAX_SIZE];
|
|
char hint_str[MAX_SIZE];
|
|
bool force_use_natt = false;
|
|
UINT dummy_int = 0;
|
|
IP dummy_ret_ip;
|
|
// Validate arguments
|
|
if (hostname == NULL || port == 0 || port >= 65536 || IsEmptyStr(hostname))
|
|
{
|
|
return NULL;
|
|
}
|
|
if (timeout == 0)
|
|
{
|
|
timeout = TIMEOUT_TCP_PORT_CHECK;
|
|
}
|
|
if (cancel_flag == NULL)
|
|
{
|
|
cancel_flag = &dummy;
|
|
}
|
|
if (nat_t_error_code == NULL)
|
|
{
|
|
nat_t_error_code = &dummy_int;
|
|
}
|
|
|
|
Zero(&dummy_ret_ip, sizeof(IP));
|
|
if (ret_ip == NULL)
|
|
{
|
|
ret_ip = &dummy_ret_ip;
|
|
}
|
|
|
|
Zero(hint_str, sizeof(hint_str));
|
|
StrCpy(hostname_original, sizeof(hostname_original), hostname);
|
|
|
|
use_natt = (IsEmptyStr(nat_t_svc_name) ? false : true);
|
|
|
|
if (use_natt)
|
|
{
|
|
// In case of using NAT-T, split host name if the '/' is included in the host name
|
|
UINT i = SearchStrEx(hostname, "/", 0, false);
|
|
|
|
if (i == INFINITE)
|
|
{
|
|
// Not included
|
|
StrCpy(hostname_original, sizeof(hostname_original), hostname);
|
|
}
|
|
else
|
|
{
|
|
// Included
|
|
StrCpy(hostname_original, sizeof(hostname_original), hostname);
|
|
hostname_original[i] = 0;
|
|
|
|
// Force to use the NAT-T
|
|
force_use_natt = true;
|
|
|
|
// Copy the hint string
|
|
StrCpy(hint_str, sizeof(hint_str), hostname + i + 1);
|
|
|
|
if (StrCmpi(hint_str, "tcp") == 0 || StrCmpi(hint_str, "disable") == 0
|
|
|| StrCmpi(hint_str, "disabled") == 0
|
|
|| StrCmpi(hint_str, "no") == 0 || StrCmpi(hint_str, "none") == 0)
|
|
{
|
|
// Force not to use the NAT-T
|
|
force_use_natt = false;
|
|
use_natt = false;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
StrCpy(hostname_original, sizeof(hostname_original), hostname);
|
|
}
|
|
|
|
Zero(¤t_ip, sizeof(current_ip));
|
|
|
|
Zero(&ip4, sizeof(ip4));
|
|
Zero(&ip6, sizeof(ip6));
|
|
|
|
if (IsZeroIp(ret_ip) == false)
|
|
{
|
|
// Skip name resolution
|
|
if (IsIP6(ret_ip))
|
|
{
|
|
Copy(&ip6, ret_ip, sizeof(IP));
|
|
}
|
|
else
|
|
{
|
|
Copy(&ip4, ret_ip, sizeof(IP));
|
|
}
|
|
|
|
//Debug("Using cached IP address: %s = %r\n", hostname_original, ret_ip);
|
|
}
|
|
else
|
|
{
|
|
// Forward resolution
|
|
if (GetIP46Ex(&ip4, &ip6, hostname_original, 0, cancel_flag) == false)
|
|
{
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
if (IsZeroIp(&ip4) == false && IsIPLocalHostOrMySelf(&ip4))
|
|
{
|
|
// NAT-T isn't used in the case of connection to localhost
|
|
force_use_natt = false;
|
|
use_natt = false;
|
|
}
|
|
|
|
s = INVALID_SOCKET;
|
|
|
|
// Attempt to connect with IPv4
|
|
if (IsZeroIp(&ip4) == false)
|
|
{
|
|
if (use_natt == false)
|
|
{
|
|
// Normal connection without using NAT-T
|
|
s = ConnectTimeoutIPv4(&ip4, port, timeout, cancel_flag);
|
|
|
|
if (s != INVALID_SOCKET)
|
|
{
|
|
Copy(¤t_ip, &ip4, sizeof(IP));
|
|
|
|
Copy(ret_ip, &ip4, sizeof(IP));
|
|
}
|
|
}
|
|
else if (force_use_natt)
|
|
{
|
|
// The connection by forcing the use of NAT-T (not to connection with normal TCP)
|
|
SOCK *nat_t_sock = NewRUDPClientNatT(nat_t_svc_name, &ip4, nat_t_error_code, timeout, cancel_flag,
|
|
hint_str, hostname);
|
|
|
|
if (nat_t_sock != NULL)
|
|
{
|
|
StrCpy(nat_t_sock->UnderlayProtocol, sizeof(nat_t_sock->UnderlayProtocol), SOCK_UNDERLAY_NAT_T);
|
|
AddProtocolDetailsStr(nat_t_sock->ProtocolDetails, sizeof(nat_t_sock->ProtocolDetails), "RUDP");
|
|
}
|
|
|
|
Copy(ret_ip, &ip4, sizeof(IP));
|
|
|
|
return nat_t_sock;
|
|
}
|
|
else
|
|
{
|
|
// Use the connections using NAT-T with normal TCP connection together
|
|
// (Use multiple threads to try to connect in four connection methods concurrently)
|
|
CONNECT_TCP_RUDP_PARAM p1, p2, p3, p4;
|
|
EVENT *finish_event;
|
|
THREAD *t1, *t2, *t3, *t4;
|
|
UINT64 start_tick = Tick64();
|
|
UINT64 giveup_for_all_tick = start_tick + (UINT64)SOCK_CONNECT_WAIT_FOR_ICMP_AND_DNS_AT_LEAST;
|
|
bool cancel_flag2 = false;
|
|
SOCK *cancel_sock = NULL;
|
|
|
|
finish_event = NewEvent();
|
|
|
|
Zero(&p1, sizeof(p1));
|
|
Zero(&p2, sizeof(p2));
|
|
Zero(&p3, sizeof(p3));
|
|
Zero(&p4, sizeof(p4));
|
|
|
|
// p1: TCP
|
|
StrCpy(p1.Hostname, sizeof(p1.Hostname), hostname_original);
|
|
Copy(&p1.Ip, &ip4, sizeof(IP));
|
|
p1.Port = port;
|
|
p1.Timeout = timeout;
|
|
p1.CancelFlag = &cancel_flag2;
|
|
p1.FinishEvent = finish_event;
|
|
p1.Tcp_TryStartSsl = try_start_ssl;
|
|
p1.CancelLock = NewLock();
|
|
|
|
// p2: NAT-T
|
|
StrCpy(p2.Hostname, sizeof(p2.Hostname), hostname_original);
|
|
Copy(&p2.Ip, &ip4, sizeof(IP));
|
|
p2.Port = port;
|
|
p2.Timeout = timeout;
|
|
p2.CancelFlag = &cancel_flag2;
|
|
p2.FinishEvent = finish_event;
|
|
|
|
StrCpy(p2.HintStr, sizeof(p2.HintStr), hint_str);
|
|
StrCpy(p2.TargetHostname, sizeof(p2.TargetHostname), hostname);
|
|
StrCpy(p2.SvcName, sizeof(p2.SvcName), nat_t_svc_name);
|
|
p2.Delay = 30; // Delay by 30ms
|
|
|
|
// p3: over ICMP
|
|
StrCpy(p3.Hostname, sizeof(p3.Hostname), hostname_original);
|
|
Copy(&p3.Ip, &ip4, sizeof(IP));
|
|
p3.Port = port;
|
|
p3.Timeout = timeout;
|
|
p3.CancelFlag = &cancel_flag2;
|
|
p3.FinishEvent = finish_event;
|
|
StrCpy(p3.SvcName, sizeof(p3.SvcName), nat_t_svc_name);
|
|
p3.RUdpProtocol = RUDP_PROTOCOL_ICMP;
|
|
p3.Delay = 200; // Delay by 200ms
|
|
|
|
// p4: over DNS
|
|
StrCpy(p4.Hostname, sizeof(p4.Hostname), hostname_original);
|
|
Copy(&p4.Ip, &ip4, sizeof(IP));
|
|
p4.Port = port;
|
|
p4.Timeout = timeout;
|
|
p4.CancelFlag = &cancel_flag2;
|
|
p4.FinishEvent = finish_event;
|
|
StrCpy(p4.SvcName, sizeof(p4.SvcName), nat_t_svc_name);
|
|
p4.RUdpProtocol = RUDP_PROTOCOL_DNS;
|
|
p4.Delay = 100; // Delay by 100ms
|
|
|
|
t1 = NewThread(ConnectThreadForTcp, &p1);
|
|
t2 = NewThread(ConnectThreadForRUDP, &p2);
|
|
t4 = NewThread(ConnectThreadForOverDnsOrIcmp, &p4);
|
|
t3 = NewThread(ConnectThreadForOverDnsOrIcmp, &p3);
|
|
|
|
while (true)
|
|
{
|
|
UINT64 now = Tick64();
|
|
|
|
if (*cancel_flag)
|
|
{
|
|
// Cancel by the user
|
|
break;
|
|
}
|
|
|
|
if (p1.Finished && p2.Finished)
|
|
{
|
|
// Results for both the TCP and the NAT-T were confirmed
|
|
if (now >= giveup_for_all_tick)
|
|
{
|
|
// Wait at least minimum time until successful of the ICMP or the DNS
|
|
break;
|
|
}
|
|
|
|
if (p3.Ok || p4.Ok)
|
|
{
|
|
// Exit the loop immediately if any of the ICMP or the DNS is successful
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (p1.Finished && p1.Ok)
|
|
{
|
|
// Have successfully connected by TCP
|
|
break;
|
|
}
|
|
|
|
if (p2.Finished && p2.Ok)
|
|
{
|
|
UINT p1_wait_time;
|
|
UINT64 tcp_giveup_tick;
|
|
UINT p2_spent_time;
|
|
// Have successfully connected by R-UDP
|
|
if (p1.Finished)
|
|
{
|
|
// Result of TCP is confirmed
|
|
break;
|
|
}
|
|
|
|
// Calculate the time takes to complete connection of R-UDP
|
|
p2_spent_time = (UINT)(p2.FinishedTick - start_tick);
|
|
|
|
// Decide the grace time for results of TCP until settled.
|
|
// The grace time is four times the duration of the R-UDP, and at least 400 milliseconds from the start,
|
|
// and up to 2500 milliseconds after the R-UDP results settled
|
|
p1_wait_time = p2_spent_time * 4;
|
|
p1_wait_time = MAX(p1_wait_time, 400);
|
|
//Debug("p2_spent_time = %u, p1_wait_time = %u\n", p2_spent_time, p1_wait_time);
|
|
|
|
tcp_giveup_tick = start_tick + (UINT64)p1_wait_time;
|
|
tcp_giveup_tick = MIN(tcp_giveup_tick, (p2.FinishedTick + 2500ULL));
|
|
|
|
if (now >= tcp_giveup_tick)
|
|
{
|
|
// Result of the TCP is uncertain, but give up
|
|
if (p1.Finished || p1.Tcp_InNegotiation == false)
|
|
{
|
|
// Break only when TCP SSL negotiation is not being processed
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
Wait(finish_event, 25);
|
|
}
|
|
|
|
cancel_flag2 = true;
|
|
|
|
Lock(p1.CancelLock);
|
|
{
|
|
if (p1.CancelDisconnectSock != NULL)
|
|
{
|
|
cancel_sock = p1.CancelDisconnectSock;
|
|
|
|
AddRef(cancel_sock->ref);
|
|
}
|
|
}
|
|
Unlock(p1.CancelLock);
|
|
|
|
if (cancel_sock != NULL)
|
|
{
|
|
Disconnect(cancel_sock);
|
|
ReleaseSock(cancel_sock);
|
|
}
|
|
|
|
WaitThread(t1, INFINITE);
|
|
WaitThread(t2, INFINITE);
|
|
WaitThread(t3, INFINITE);
|
|
WaitThread(t4, INFINITE);
|
|
ReleaseThread(t1);
|
|
ReleaseThread(t2);
|
|
ReleaseThread(t3);
|
|
ReleaseThread(t4);
|
|
ReleaseEvent(finish_event);
|
|
|
|
DeleteLock(p1.CancelLock);
|
|
|
|
if (*cancel_flag)
|
|
{
|
|
// Abandon all the results because the user canceled
|
|
Disconnect(p1.Result_Nat_T_Sock);
|
|
ReleaseSock(p1.Result_Nat_T_Sock);
|
|
Disconnect(p2.Result_Nat_T_Sock);
|
|
ReleaseSock(p2.Result_Nat_T_Sock);
|
|
Disconnect(p3.Result_Nat_T_Sock);
|
|
ReleaseSock(p3.Result_Nat_T_Sock);
|
|
Disconnect(p4.Result_Nat_T_Sock);
|
|
ReleaseSock(p4.Result_Nat_T_Sock);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
if (p1.Ok)
|
|
{
|
|
char hostname[MAX_SIZE];
|
|
|
|
// Use the results of the TCP
|
|
// Dispose other results
|
|
Disconnect(p2.Result_Nat_T_Sock);
|
|
ReleaseSock(p2.Result_Nat_T_Sock);
|
|
Disconnect(p3.Result_Nat_T_Sock);
|
|
ReleaseSock(p3.Result_Nat_T_Sock);
|
|
Disconnect(p4.Result_Nat_T_Sock);
|
|
ReleaseSock(p4.Result_Nat_T_Sock);
|
|
|
|
if (GetHostName(hostname, sizeof(hostname), &ip4))
|
|
{
|
|
Free(p1.Result_Tcp_Sock->RemoteHostname);
|
|
p1.Result_Tcp_Sock->RemoteHostname = CopyStr(hostname);
|
|
}
|
|
|
|
Copy(ret_ip, &ip4, sizeof(IP));
|
|
|
|
return p1.Result_Tcp_Sock;
|
|
}
|
|
else if (p2.Ok)
|
|
{
|
|
// Use the results of the R-UDP
|
|
// Dispose other results
|
|
Disconnect(p3.Result_Nat_T_Sock);
|
|
ReleaseSock(p3.Result_Nat_T_Sock);
|
|
Disconnect(p4.Result_Nat_T_Sock);
|
|
ReleaseSock(p4.Result_Nat_T_Sock);
|
|
|
|
StrCpy(p2.Result_Nat_T_Sock->UnderlayProtocol, sizeof(p2.Result_Nat_T_Sock->UnderlayProtocol), SOCK_UNDERLAY_NAT_T);
|
|
AddProtocolDetailsStr(p2.Result_Nat_T_Sock->UnderlayProtocol, sizeof(p2.Result_Nat_T_Sock->UnderlayProtocol), "RUDP/UDP");
|
|
|
|
Copy(ret_ip, &ip4, sizeof(IP));
|
|
|
|
return p2.Result_Nat_T_Sock;
|
|
}
|
|
else if (p4.Ok)
|
|
{
|
|
// Use this if over-DNS success
|
|
// Dispose other results
|
|
Disconnect(p3.Result_Nat_T_Sock);
|
|
ReleaseSock(p3.Result_Nat_T_Sock);
|
|
|
|
StrCpy(p4.Result_Nat_T_Sock->UnderlayProtocol, sizeof(p4.Result_Nat_T_Sock->UnderlayProtocol), SOCK_UNDERLAY_DNS);
|
|
AddProtocolDetailsStr(p4.Result_Nat_T_Sock->UnderlayProtocol, sizeof(p4.Result_Nat_T_Sock->UnderlayProtocol), "RUDP/DNS");
|
|
|
|
Copy(ret_ip, &ip4, sizeof(IP));
|
|
|
|
return p4.Result_Nat_T_Sock;
|
|
}
|
|
else if (p3.Ok)
|
|
{
|
|
// Use this if over ICMP success
|
|
StrCpy(p3.Result_Nat_T_Sock->UnderlayProtocol, sizeof(p3.Result_Nat_T_Sock->UnderlayProtocol), SOCK_UNDERLAY_ICMP);
|
|
AddProtocolDetailsStr(p3.Result_Nat_T_Sock->UnderlayProtocol, sizeof(p3.Result_Nat_T_Sock->UnderlayProtocol), "RUDP/ICMP");
|
|
|
|
Copy(ret_ip, &ip4, sizeof(IP));
|
|
|
|
return p3.Result_Nat_T_Sock;
|
|
}
|
|
else
|
|
{
|
|
// Continue the process if all trials failed
|
|
*nat_t_error_code = p2.NatT_ErrorCode;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Attempt to connect with IPv6
|
|
if (s == INVALID_SOCKET && IsZeroIp(&ip6) == false)
|
|
{
|
|
struct sockaddr_in6 sockaddr6;
|
|
struct in6_addr addr6;
|
|
|
|
Zero(&sockaddr6, sizeof(sockaddr6));
|
|
Zero(&addr6, sizeof(addr6));
|
|
|
|
// Generation of the sockaddr_in6
|
|
IPToInAddr6(&addr6, &ip6);
|
|
sockaddr6.sin6_port = htons((USHORT)port);
|
|
sockaddr6.sin6_family = AF_INET6;
|
|
sockaddr6.sin6_scope_id = ip6.ipv6_scope_id;
|
|
Copy(&sockaddr6.sin6_addr, &addr6, sizeof(addr6));
|
|
|
|
// Socket creation
|
|
s = socket(AF_INET6, SOCK_STREAM, 0);
|
|
if (s != INVALID_SOCKET)
|
|
{
|
|
// Connection
|
|
if (connect_timeout(s, (struct sockaddr *)&sockaddr6, sizeof(struct sockaddr_in6), timeout, cancel_flag) != 0)
|
|
{
|
|
// Connection failure
|
|
closesocket(s);
|
|
s = INVALID_SOCKET;
|
|
}
|
|
else
|
|
{
|
|
Copy(¤t_ip, &ip6, sizeof(IP));
|
|
|
|
is_ipv6 = true;
|
|
|
|
Copy(ret_ip, &ip6, sizeof(IP));
|
|
}
|
|
}
|
|
}
|
|
|
|
if (s == INVALID_SOCKET)
|
|
{
|
|
// Connection fails on both of IPv4, IPv6
|
|
return NULL;
|
|
}
|
|
|
|
// Creating a SOCK
|
|
sock = NewSock();
|
|
sock->socket = s;
|
|
sock->Type = SOCK_TCP;
|
|
sock->ServerMode = false;
|
|
|
|
StrCpy(sock->UnderlayProtocol, sizeof(sock->UnderlayProtocol), is_ipv6 ? SOCK_UNDERLAY_NATIVE_V6 : SOCK_UNDERLAY_NATIVE_V4);
|
|
AddProtocolDetailsStr(sock->ProtocolDetails, sizeof(sock->ProtocolDetails), is_ipv6 ? "IPv6" : "IPv4");
|
|
|
|
// Host name resolution
|
|
if (no_get_hostname || (GetHostName(tmp, sizeof(tmp), ¤t_ip) == false))
|
|
{
|
|
StrCpy(tmp, sizeof(tmp), hostname_original);
|
|
}
|
|
|
|
//Debug("PTR: %s\n", tmp);
|
|
|
|
sock->RemoteHostname = CopyStr(tmp);
|
|
|
|
// Debug("new socket: %u\n", s);
|
|
|
|
Zero(&ling, sizeof(ling));
|
|
|
|
bool true_flag = true;
|
|
// Forced disconnection flag
|
|
#ifdef SO_DONTLINGER
|
|
(void)setsockopt(sock->socket, SOL_SOCKET, SO_DONTLINGER, (char *)&true_flag, sizeof(bool));
|
|
#else // SO_DONTLINGER
|
|
bool false_flag = false;
|
|
(void)setsockopt(sock->socket, SOL_SOCKET, SO_LINGER, (char *)&false_flag, sizeof(bool));
|
|
#endif // SO_DONTLINGER
|
|
// setsockopt(sock->socket, SOL_SOCKET, SO_REUSEADDR, (char *)&true_flag, sizeof(bool));
|
|
|
|
// Configuring TCP options
|
|
(void)setsockopt(sock->socket, IPPROTO_TCP, TCP_NODELAY, (char *)&true_flag, sizeof(bool));
|
|
|
|
// Initialization of the time-out value
|
|
SetTimeout(sock, TIMEOUT_INFINITE);
|
|
|
|
// Get the socket information
|
|
QuerySocketInformation(sock);
|
|
|
|
if (IsZeroIp(&sock->LocalIP) == false && IsLocalHostIP(&sock->LocalIP) == false)
|
|
{
|
|
IP current_ip;
|
|
|
|
if (GetCurrentGlobalIP(¤t_ip, is_ipv6) == false)
|
|
{
|
|
SetCurrentGlobalIP(&sock->LocalIP, is_ipv6);
|
|
}
|
|
}
|
|
|
|
sock->Connected = true;
|
|
sock->AsyncMode = false;
|
|
sock->SecureMode = false;
|
|
sock->IPv6 = is_ipv6;
|
|
|
|
return sock;
|
|
}
|
|
|
|
// Add a protocol details strings
|
|
void AddProtocolDetailsStr(char *dst, UINT dst_size, char *str)
|
|
{
|
|
TOKEN_LIST *t1, *t2;
|
|
UINT i, j;
|
|
if (dst == NULL || str == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
t1 = ParseTokenWithoutNullStr(dst, " ");
|
|
t2 = ParseTokenWithoutNullStr(str, " ");
|
|
|
|
for (i = 0; i < t2->NumTokens; i++)
|
|
{
|
|
bool exists = false;
|
|
for (j = 0; j < t1->NumTokens; j++)
|
|
{
|
|
if (StrCmpi(t1->Token[j], t2->Token[i]) == 0)
|
|
{
|
|
exists = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (exists == false)
|
|
{
|
|
StrCat(dst, dst_size, t2->Token[i]);
|
|
StrCat(dst, dst_size, " ");
|
|
}
|
|
}
|
|
|
|
FreeToken(t1);
|
|
FreeToken(t2);
|
|
}
|
|
|
|
void AddProtocolDetailsKeyValueStr(char *dst, UINT dst_size, char *key, char *value)
|
|
{
|
|
char tmp[128];
|
|
StrCpy(tmp, sizeof(tmp), key);
|
|
StrCat(tmp, sizeof(tmp), "=");
|
|
StrCat(tmp, sizeof(tmp), value);
|
|
AddProtocolDetailsStr(dst, dst_size, tmp);
|
|
}
|
|
|
|
void AddProtocolDetailsKeyValueInt(char *dst, UINT dst_size, char *key, UINT value)
|
|
{
|
|
char tmp[128];
|
|
ToStr(tmp, value);
|
|
AddProtocolDetailsKeyValueStr(dst, dst_size, key, tmp);
|
|
}
|
|
|
|
|
|
// Setting the buffer size of the socket
|
|
bool SetSocketBufferSize(SOCKET s, bool send, UINT size)
|
|
{
|
|
int value = (int)size;
|
|
// Validate arguments
|
|
if (s == INVALID_SOCKET)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (setsockopt(s, SOL_SOCKET, (send ? SO_SNDBUF : SO_RCVBUF), (char *)&value, sizeof(int)) != 0)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
UINT SetSocketBufferSizeWithBestEffort(SOCKET s, bool send, UINT size)
|
|
{
|
|
// Validate arguments
|
|
if (s == INVALID_SOCKET)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
while (true)
|
|
{
|
|
if (SetSocketBufferSize(s, send, size))
|
|
{
|
|
return size;
|
|
}
|
|
|
|
size = (UINT)((double)size / 1.5);
|
|
|
|
if (size <= 32767)
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Initialize the buffer size of the UDP socket
|
|
void InitUdpSocketBufferSize(SOCKET s)
|
|
{
|
|
SetSocketBufferSizeWithBestEffort(s, true, UDP_MAX_BUFFER_SIZE);
|
|
SetSocketBufferSizeWithBestEffort(s, false, UDP_MAX_BUFFER_SIZE);
|
|
}
|
|
|
|
// Get the socket information
|
|
void QuerySocketInformation(SOCK *sock)
|
|
{
|
|
// Validate arguments
|
|
if (sock == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Lock(sock->lock);
|
|
{
|
|
struct sockaddr_in6 sockaddr6;
|
|
struct in6_addr *addr6;
|
|
int size;
|
|
UINT dw;
|
|
UINT opt_value = 0;
|
|
|
|
if (sock->Type == SOCK_TCP)
|
|
{
|
|
// Get the information of the remote host
|
|
size = sizeof(sockaddr6);
|
|
if (getpeername(sock->socket, (struct sockaddr *)&sockaddr6, (int *)&size) == 0)
|
|
{
|
|
if (size >= sizeof(struct sockaddr_in6))
|
|
{
|
|
sock->RemotePort = (UINT)ntohs(sockaddr6.sin6_port);
|
|
addr6 = &sockaddr6.sin6_addr;
|
|
InAddrToIP6(&sock->RemoteIP, addr6);
|
|
sock->RemoteIP.ipv6_scope_id = sockaddr6.sin6_scope_id;
|
|
}
|
|
else
|
|
{
|
|
struct sockaddr_in *sockaddr;
|
|
struct in_addr *addr;
|
|
|
|
sockaddr = (struct sockaddr_in *)&sockaddr6;
|
|
sock->RemotePort = (UINT)ntohs(sockaddr->sin_port);
|
|
addr = &sockaddr->sin_addr;
|
|
InAddrToIP(&sock->RemoteIP, addr);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Get the local host information
|
|
size = sizeof(sockaddr6);
|
|
if (getsockname(sock->socket, (struct sockaddr *)&sockaddr6, (int *)&size) == 0)
|
|
{
|
|
if (size >= sizeof(struct sockaddr_in6))
|
|
{
|
|
sock->LocalPort = (UINT)ntohs(sockaddr6.sin6_port);
|
|
addr6 = &sockaddr6.sin6_addr;
|
|
InAddrToIP6(&sock->LocalIP, addr6);
|
|
sock->LocalIP.ipv6_scope_id = sockaddr6.sin6_scope_id;
|
|
}
|
|
else
|
|
{
|
|
struct sockaddr_in *sockaddr;
|
|
struct in_addr *addr;
|
|
|
|
sockaddr = (struct sockaddr_in *)&sockaddr6;
|
|
sock->LocalPort = (UINT)ntohs(sockaddr->sin_port);
|
|
addr = &sockaddr->sin_addr;
|
|
InAddrToIP(&sock->LocalIP, addr);
|
|
}
|
|
}
|
|
|
|
if (sock->IsRawSocket)
|
|
{
|
|
sock->LocalPort = sock->RemotePort = MAKE_SPECIAL_PORT(sock->RawSocketIPProtocol);
|
|
}
|
|
|
|
if (sock->Type == SOCK_UDP)
|
|
{
|
|
sock->UdpMaxMsgSize = UDP_MAX_MSG_SIZE_DEFAULT;
|
|
|
|
#ifdef OS_WIN32
|
|
if (true)
|
|
{
|
|
// Get the buffer size that can be transmitted and received at once
|
|
UINT max_value = 0;
|
|
int len = sizeof(UINT);
|
|
|
|
if (getsockopt(sock->socket, SOL_SOCKET, SO_MAX_MSG_SIZE, (char *)&max_value, &len) == 0)
|
|
{
|
|
sock->UdpMaxMsgSize = max_value;
|
|
}
|
|
}
|
|
#endif // OS_WIN32
|
|
}
|
|
|
|
if (sock->IPv6)
|
|
{
|
|
#ifdef IPV6_UNICAST_HOPS
|
|
opt_value = IPV6_UNICAST_HOPS;
|
|
#endif // IPV6_UNICAST_HOPS
|
|
}
|
|
else
|
|
{
|
|
#ifdef IP_TTL
|
|
opt_value = IP_TTL;
|
|
#endif // IP_TTL
|
|
}
|
|
|
|
// Support of the TTL value
|
|
size = sizeof(UINT);
|
|
if (opt_value == 0 ||
|
|
getsockopt(sock->socket, (sock->IPv6 ? IPPROTO_IPV6 : IPPROTO_IP), opt_value, (char *)&dw, &size) != 0)
|
|
{
|
|
sock->IsTtlSupported = false;
|
|
}
|
|
else
|
|
{
|
|
sock->IsTtlSupported = true;
|
|
sock->CurrentTtl = dw;
|
|
}
|
|
}
|
|
Unlock(sock->lock);
|
|
}
|
|
|
|
// Setting the TTL value
|
|
bool SetTtl(SOCK *sock, UINT ttl)
|
|
{
|
|
UINT dw;
|
|
int size;
|
|
UINT opt_value = 0;
|
|
// Validate arguments
|
|
if (sock == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (sock->IsTtlSupported == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (sock->CurrentTtl == ttl)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
dw = ttl;
|
|
size = sizeof(UINT);
|
|
|
|
if (sock->IPv6)
|
|
{
|
|
#ifdef IPV6_UNICAST_HOPS
|
|
opt_value = IPV6_UNICAST_HOPS;
|
|
#endif // IPV6_UNICAST_HOPS
|
|
}
|
|
else
|
|
{
|
|
#ifdef IP_TTL
|
|
opt_value = IP_TTL;
|
|
#endif // IP_TTL
|
|
}
|
|
|
|
if (opt_value == 0 ||
|
|
setsockopt(sock->socket, (sock->IPv6 ? IPPROTO_IPV6 : IPPROTO_IP), opt_value, (char *)&dw, size) == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
sock->CurrentTtl = ttl;
|
|
|
|
return true;
|
|
}
|
|
|
|
// Release of the socket
|
|
void ReleaseSock(SOCK *s)
|
|
{
|
|
// Validate arguments
|
|
if (s == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (Release(s->ref) == 0)
|
|
{
|
|
if (s->ListenMode == false && s->ServerMode)
|
|
{
|
|
Print("");
|
|
}
|
|
CleanupSock(s);
|
|
}
|
|
}
|
|
|
|
// Clean-up of the socket
|
|
void CleanupSock(SOCK *s)
|
|
{
|
|
// Validate arguments
|
|
if (s == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
// {Debug("CleanupSock: Disconnect() Called: %s %u\n", __FILE__, __LINE__);Disconnect(s);}
|
|
Disconnect(s);
|
|
|
|
if (s->InProcAcceptQueue != NULL)
|
|
{
|
|
while (true)
|
|
{
|
|
SOCK *ss = GetNext(s->InProcAcceptQueue);
|
|
if (ss == NULL)
|
|
{
|
|
break;
|
|
}
|
|
|
|
Disconnect(ss);
|
|
ReleaseSock(ss);
|
|
}
|
|
|
|
ReleaseQueue(s->InProcAcceptQueue);
|
|
}
|
|
|
|
if (s->InProcAcceptEvent != NULL)
|
|
{
|
|
ReleaseEvent(s->InProcAcceptEvent);
|
|
}
|
|
|
|
if (s->ReverseAcceptQueue != NULL)
|
|
{
|
|
while (true)
|
|
{
|
|
SOCK *ss = GetNext(s->ReverseAcceptQueue);
|
|
if (ss == NULL)
|
|
{
|
|
break;
|
|
}
|
|
|
|
Disconnect(ss);
|
|
ReleaseSock(ss);
|
|
}
|
|
|
|
ReleaseQueue(s->ReverseAcceptQueue);
|
|
}
|
|
|
|
if (s->ReverseAcceptEvent != NULL)
|
|
{
|
|
ReleaseEvent(s->ReverseAcceptEvent);
|
|
}
|
|
|
|
if (s->SendTube != NULL)
|
|
{
|
|
TubeDisconnect(s->SendTube);
|
|
ReleaseTube(s->SendTube);
|
|
}
|
|
|
|
if (s->RecvTube != NULL)
|
|
{
|
|
TubeDisconnect(s->RecvTube);
|
|
ReleaseTube(s->RecvTube);
|
|
}
|
|
|
|
if (s->BulkRecvTube != NULL)
|
|
{
|
|
TubeDisconnect(s->BulkRecvTube);
|
|
ReleaseTube(s->BulkRecvTube);
|
|
}
|
|
|
|
if (s->BulkSendTube != NULL)
|
|
{
|
|
TubeDisconnect(s->BulkSendTube);
|
|
ReleaseTube(s->BulkSendTube);
|
|
}
|
|
|
|
if (s->BulkSendKey != NULL)
|
|
{
|
|
ReleaseSharedBuffer(s->BulkSendKey);
|
|
}
|
|
|
|
if (s->BulkRecvKey != NULL)
|
|
{
|
|
ReleaseSharedBuffer(s->BulkRecvKey);
|
|
}
|
|
|
|
if (s->InProcRecvFifo != NULL)
|
|
{
|
|
ReleaseFifo(s->InProcRecvFifo);
|
|
}
|
|
|
|
if (s->R_UDP_Stack != NULL)
|
|
{
|
|
FreeRUDP(s->R_UDP_Stack);
|
|
}
|
|
|
|
#ifdef OS_WIN32
|
|
Win32FreeAsyncSocket(s);
|
|
#else // OS_WIN32
|
|
UnixFreeAsyncSocket(s);
|
|
#endif // OS_WIN32
|
|
|
|
FreeBuf(s->SendBuf);
|
|
if (s->socket != INVALID_SOCKET)
|
|
{
|
|
#ifdef OS_WIN32
|
|
closesocket(s->socket);
|
|
#else // OS_WIN32
|
|
close(s->socket);
|
|
#endif // OS_WIN32
|
|
}
|
|
Free(s->RemoteHostname);
|
|
|
|
#ifdef OS_WIN32
|
|
if (s->hAcceptEvent != NULL)
|
|
{
|
|
CloseHandle(s->hAcceptEvent);
|
|
}
|
|
#endif // OS_WIN32
|
|
|
|
// Release the certificate
|
|
if (s->RemoteX != NULL)
|
|
{
|
|
FreeX(s->RemoteX);
|
|
s->RemoteX = NULL;
|
|
}
|
|
if (s->LocalX != NULL)
|
|
{
|
|
FreeX(s->LocalX);
|
|
s->LocalX = NULL;
|
|
}
|
|
|
|
// Cipher algorithm name
|
|
if (s->CipherName != NULL)
|
|
{
|
|
Free(s->CipherName);
|
|
s->CipherName = NULL;
|
|
}
|
|
|
|
Free(s->WaitToUseCipher);
|
|
DeleteLock(s->lock);
|
|
DeleteLock(s->ssl_lock);
|
|
DeleteLock(s->disconnect_lock);
|
|
|
|
Dec(num_tcp_connections);
|
|
|
|
Free(s);
|
|
}
|
|
|
|
// Creating a new socket
|
|
SOCK *NewSock()
|
|
{
|
|
SOCK *s = ZeroMallocFast(sizeof(SOCK));
|
|
|
|
s->ref = NewRef();
|
|
s->lock = NewLock();
|
|
s->SendBuf = NewBuf();
|
|
s->socket = INVALID_SOCKET;
|
|
s->ssl_lock = NewLock();
|
|
s->disconnect_lock = NewLock();
|
|
|
|
Inc(num_tcp_connections);
|
|
|
|
return s;
|
|
}
|
|
|
|
// Convert the IP to UINT
|
|
UINT IPToUINT(IP *ip)
|
|
{
|
|
UCHAR *b;
|
|
UINT i, value = 0;
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
b = (UCHAR *)&value;
|
|
for (i = 0; i < 4; i++)
|
|
{
|
|
b[i] = ip->addr[i];
|
|
}
|
|
|
|
return value;
|
|
}
|
|
|
|
// Convert UINT to IP
|
|
void UINTToIP(IP *ip, UINT value)
|
|
{
|
|
UCHAR *b;
|
|
UINT i;
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
ZeroIP4(ip);
|
|
|
|
b = (UCHAR *)&value;
|
|
for (i = 0; i < 4; i++)
|
|
{
|
|
ip->addr[i] = b[i];
|
|
}
|
|
}
|
|
|
|
// Get the host name of the computer
|
|
void GetMachineHostName(char *name, UINT size)
|
|
{
|
|
char tmp[MAX_SIZE];
|
|
UINT i, len;
|
|
// Validate arguments
|
|
if (name == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
GetMachineName(tmp, sizeof(tmp));
|
|
|
|
len = StrLen(tmp);
|
|
for (i = 0; i < len; i++)
|
|
{
|
|
if (tmp[i] == '.')
|
|
{
|
|
tmp[i] = 0;
|
|
}
|
|
}
|
|
|
|
ConvertSafeFileName(name, size, tmp);
|
|
}
|
|
|
|
// Get the computer name from 'hosts'
|
|
bool GetMachineNameFromHosts(char *name, UINT size)
|
|
{
|
|
bool ret = false;
|
|
char *s;
|
|
BUF *b;
|
|
// Validate arguments
|
|
if (name == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
b = ReadDump("/etc/hosts");
|
|
if (b == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
while (true)
|
|
{
|
|
s = CfgReadNextLine(b);
|
|
if (s == NULL)
|
|
{
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
TOKEN_LIST *t = ParseToken(s, " \t");
|
|
|
|
if (t != NULL)
|
|
{
|
|
if (t->NumTokens >= 2)
|
|
{
|
|
if (StrCmpi(t->Token[0], "127.0.0.1") == 0)
|
|
{
|
|
UINT i;
|
|
|
|
for (i = 1; i < t->NumTokens; i++)
|
|
{
|
|
if (StartWith(t->Token[i], "localhost") == false)
|
|
{
|
|
StrCpy(name, size, t->Token[i]);
|
|
ret = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
FreeToken(t);
|
|
}
|
|
|
|
Free(s);
|
|
}
|
|
|
|
FreeBuf(b);
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Get the computer name of this computer
|
|
void GetMachineName(char *name, UINT size)
|
|
{
|
|
GetMachineNameEx(name, size, false);
|
|
}
|
|
void GetMachineNameEx(char *name, UINT size, bool no_load_hosts)
|
|
{
|
|
static char name_cache[MAX_SIZE];
|
|
static bool name_cached = false;
|
|
char tmp[MAX_SIZE];
|
|
char tmp2[MAX_SIZE];
|
|
// Validate arguments
|
|
if (name == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Lock(machine_name_lock);
|
|
{
|
|
if (name_cached != false)
|
|
{
|
|
StrCpy(name, size, name_cache);
|
|
Unlock(machine_name_lock);
|
|
return;
|
|
}
|
|
ClearStr(tmp, sizeof(tmp));
|
|
if (gethostname(tmp, MAX_SIZE) != 0)
|
|
{
|
|
StrCpy(name, size, "Unknown");
|
|
Unlock(machine_name_lock);
|
|
return;
|
|
}
|
|
ClearStr(name, size);
|
|
StrCpy(name, size, tmp);
|
|
if (IsEmptyStr(name) || StartWith(name, "localhost"))
|
|
{
|
|
#ifdef OS_WIN32
|
|
ClearStr(name, size);
|
|
MsGetComputerName(name, size);
|
|
#endif // OS_WIN32
|
|
}
|
|
if (IsEmptyStr(name) || StartWith(name, "localhost"))
|
|
{
|
|
if (no_load_hosts == false && OS_IS_UNIX(GetOsInfo()->OsType))
|
|
{
|
|
if (GetMachineNameFromHosts(tmp2, sizeof(tmp2)))
|
|
{
|
|
StrCpy(name, size, tmp2);
|
|
}
|
|
}
|
|
}
|
|
|
|
StrCpy(name_cache, sizeof(name_cache), name);
|
|
name_cached = true;
|
|
}
|
|
Unlock(machine_name_lock);
|
|
}
|
|
|
|
// Host name acquisition thread
|
|
void GetHostNameThread(THREAD *t, void *p)
|
|
{
|
|
IP *ip;
|
|
char hostname[256];
|
|
// Validate arguments
|
|
if (t == NULL || p == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
ip = (IP *)p;
|
|
|
|
AddWaitThread(t);
|
|
|
|
NoticeThreadInit(t);
|
|
|
|
if (GetHostNameInner(hostname, sizeof(hostname), ip))
|
|
{
|
|
AddHostCache(ip, hostname);
|
|
}
|
|
|
|
Free(ip);
|
|
|
|
DelWaitThread(t);
|
|
}
|
|
|
|
// Get the host name
|
|
bool GetHostName(char *hostname, UINT size, IP *ip)
|
|
{
|
|
THREAD *t;
|
|
IP *p_ip;
|
|
bool ret;
|
|
// Validate arguments
|
|
if (hostname == NULL || ip == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (GetHostCache(hostname, size, ip))
|
|
{
|
|
if (IsEmptyStr(hostname) == false)
|
|
{
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
p_ip = ZeroMalloc(sizeof(IP));
|
|
Copy(p_ip, ip, sizeof(IP));
|
|
|
|
t = NewThread(GetHostNameThread, p_ip);
|
|
|
|
WaitThreadInit(t);
|
|
|
|
WaitThread(t, TIMEOUT_HOSTNAME);
|
|
|
|
ReleaseThread(t);
|
|
|
|
ret = GetHostCache(hostname, size, ip);
|
|
if (ret == false)
|
|
{
|
|
if (IsIP4(ip))
|
|
{
|
|
ret = GetNetBiosName(hostname, size, ip);
|
|
if (ret)
|
|
{
|
|
AddHostCache(ip, hostname);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (IsEmptyStr(hostname))
|
|
{
|
|
ret = false;
|
|
}
|
|
}
|
|
if (ret == false)
|
|
{
|
|
AddHostCache(ip, "");
|
|
StrCpy(hostname, size, "");
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Perform a DNS reverse query
|
|
bool GetHostNameInner(char *hostname, UINT size, IP *ip)
|
|
{
|
|
struct in_addr addr;
|
|
struct sockaddr_in sa;
|
|
char tmp[MAX_SIZE];
|
|
char ip_str[64];
|
|
// Validate arguments
|
|
if (hostname == NULL || ip == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (IsIP6(ip))
|
|
{
|
|
return GetHostNameInner6(hostname, size, ip);
|
|
}
|
|
|
|
// Reverse resolution
|
|
IPToInAddr(&addr, ip);
|
|
Zero(&sa, sizeof(sa));
|
|
sa.sin_family = AF_INET;
|
|
|
|
#if defined(UNIX_BSD) || defined(UNIX_MACOS)
|
|
sa.sin_len = INET_ADDRSTRLEN;
|
|
#endif // UNIX_BSD || UNIX_MACOS
|
|
|
|
Copy(&sa.sin_addr, &addr, sizeof(struct in_addr));
|
|
sa.sin_port = 0;
|
|
|
|
if (getnameinfo((struct sockaddr *)&sa, sizeof(sa), tmp, sizeof(tmp), NULL, 0, 0) != 0)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
IPToStr(ip_str, sizeof(ip_str), ip);
|
|
|
|
if (StrCmpi(tmp, ip_str) == 0)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (IsEmptyStr(tmp))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
StrCpy(hostname, size, tmp);
|
|
|
|
return true;
|
|
}
|
|
bool GetHostNameInner6(char *hostname, UINT size, IP *ip)
|
|
{
|
|
struct in6_addr addr;
|
|
struct sockaddr_in6 sa;
|
|
char tmp[MAX_SIZE];
|
|
char ip_str[256];
|
|
// Validate arguments
|
|
if (hostname == NULL || ip == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// Reverse resolution
|
|
IPToInAddr6(&addr, ip);
|
|
Zero(&sa, sizeof(sa));
|
|
sa.sin6_family = AF_INET6;
|
|
|
|
#if defined(UNIX_BSD) || defined(UNIX_MACOS)
|
|
sa.sin6_len = INET6_ADDRSTRLEN;
|
|
#endif // UNIX_BSD || UNIX_MACOS
|
|
|
|
Copy(&sa.sin6_addr, &addr, sizeof(struct in6_addr));
|
|
sa.sin6_port = 0;
|
|
|
|
if (getnameinfo((struct sockaddr *)&sa, sizeof(sa), tmp, sizeof(tmp), NULL, 0, 0) != 0)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
IPToStr(ip_str, sizeof(ip_str), ip);
|
|
|
|
if (StrCmpi(tmp, ip_str) == 0)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (IsEmptyStr(tmp))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
StrCpy(hostname, size, tmp);
|
|
|
|
return true;
|
|
}
|
|
|
|
#define NUM_NBT_QUERYS_SEND 3
|
|
|
|
// Get the NetBIOS name of the machine from the IP address
|
|
bool GetNetBiosName(char *name, UINT size, IP *ip)
|
|
{
|
|
SOCK *s;
|
|
UINT i, j;
|
|
bool flag = false;
|
|
bool ok = false;
|
|
NBTREQUEST req;
|
|
UCHAR buf[1024];
|
|
USHORT tran_id[NUM_NBT_QUERYS_SEND];
|
|
UINT64 timeout_tick;
|
|
// Validate arguments
|
|
if (name == NULL || ip == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
IPToStr(name, size, ip);
|
|
|
|
for (i = 0; i < NUM_NBT_QUERYS_SEND; i++)
|
|
{
|
|
tran_id[i] = Rand16();
|
|
}
|
|
|
|
s = NewUDP(0);
|
|
if (s == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
for (j = 0; j < NUM_NBT_QUERYS_SEND; j++)
|
|
{
|
|
Zero(&req, sizeof(req));
|
|
req.TransactionId = Endian16(tran_id[j]);
|
|
req.NumQuestions = Endian16(1);
|
|
req.Query[0] = 0x20;
|
|
req.Query[1] = 0x43;
|
|
req.Query[2] = 0x4b;
|
|
for (i = 3; i <= 32; i++)
|
|
{
|
|
req.Query[i] = 0x41;
|
|
}
|
|
req.Query[35] = 0x21;
|
|
req.Query[37] = 0x01;
|
|
|
|
if (SendTo(s, ip, 137, &req, sizeof(req)) == 0)
|
|
{
|
|
ReleaseSock(s);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
timeout_tick = Tick64() + (UINT64)TIMEOUT_NETBIOS_HOSTNAME;
|
|
|
|
while (1)
|
|
{
|
|
UINT ret;
|
|
IP src_ip;
|
|
UINT src_port;
|
|
SOCKSET set;
|
|
if (Tick64() >= timeout_tick)
|
|
{
|
|
break;
|
|
}
|
|
InitSockSet(&set);
|
|
AddSockSet(&set, s);
|
|
Select(&set, 100, NULL, NULL);
|
|
|
|
if (flag == false)
|
|
{
|
|
flag = true;
|
|
}
|
|
else
|
|
{
|
|
SleepThread(10);
|
|
}
|
|
|
|
ret = RecvFrom(s, &src_ip, &src_port, buf, sizeof(buf));
|
|
|
|
if (ret == SOCK_LATER)
|
|
{
|
|
continue;
|
|
}
|
|
else if (ret == 0)
|
|
{
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
if (ret >= sizeof(NBTRESPONSE))
|
|
{
|
|
NBTRESPONSE *r = (NBTRESPONSE *)buf;
|
|
bool b = false;
|
|
UINT i;
|
|
USHORT id = Endian16(r->TransactionId);
|
|
for (i = 0; i < NUM_NBT_QUERYS_SEND; i++)
|
|
{
|
|
if (id == tran_id[i])
|
|
{
|
|
b = true;
|
|
break;
|
|
}
|
|
}
|
|
if (b)
|
|
{
|
|
if (r->Flags != 0 && r->NumQuestions == 0 && r->AnswerRRs >= 1)
|
|
{
|
|
if (r->Response[0] == 0x20 && r->Response[1] == 0x43 &&
|
|
r->Response[2] == 0x4b)
|
|
{
|
|
if (r->Response[34] == 0x00 && r->Response[35] == 0x21 &&
|
|
r->Response[36] == 0x00 && r->Response[37] == 0x01)
|
|
{
|
|
char *a = (char *)(&r->Response[45]);
|
|
if (StrCheckLen(a, 15))
|
|
{
|
|
if (IsEmptyStr(a) == false)
|
|
{
|
|
StrCpy(name, size, a);
|
|
Trim(name);
|
|
ok = true;
|
|
}
|
|
else
|
|
{
|
|
ok = false;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
ReleaseSock(s);
|
|
return ok;
|
|
}
|
|
|
|
// Set the IP address
|
|
void SetIP(IP *ip, UCHAR a1, UCHAR a2, UCHAR a3, UCHAR a4)
|
|
{
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Zero(ip, sizeof(IP));
|
|
ip->addr[0] = a1;
|
|
ip->addr[1] = a2;
|
|
ip->addr[2] = a3;
|
|
ip->addr[3] = a4;
|
|
}
|
|
UINT SetIP32(UCHAR a1, UCHAR a2, UCHAR a3, UCHAR a4)
|
|
{
|
|
IP ip;
|
|
|
|
Zero(&ip, sizeof(ip));
|
|
SetIP(&ip, a1, a2, a3, a4);
|
|
|
|
return IPToUINT(&ip);
|
|
}
|
|
|
|
// Obtain in both v4 and v6 results with a DNS forward lookup
|
|
bool GetIP46Ex(IP *ip4, IP *ip6, char *hostname, UINT timeout, bool *cancel)
|
|
{
|
|
IP a, b;
|
|
bool ok_a, ok_b;
|
|
// Validate arguments
|
|
if (ip4 == NULL || ip6 == NULL || hostname == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
ZeroIP4(ip4);
|
|
ZeroIP6(ip6);
|
|
|
|
ok_a = ok_b = false;
|
|
|
|
if (GetIP6Ex(&a, hostname, timeout, cancel))
|
|
{
|
|
ok_a = true;
|
|
}
|
|
|
|
if (GetIP4Ex(&b, hostname, timeout, cancel))
|
|
{
|
|
ok_b = true;
|
|
}
|
|
|
|
if (ok_a)
|
|
{
|
|
if (IsIP4(&a))
|
|
{
|
|
Copy(ip4, &a, sizeof(IP));
|
|
}
|
|
}
|
|
if (ok_b)
|
|
{
|
|
if (IsIP4(&b))
|
|
{
|
|
Copy(ip4, &b, sizeof(IP));
|
|
}
|
|
|
|
if (IsIP6(&b))
|
|
{
|
|
Copy(ip6, &b, sizeof(IP));
|
|
}
|
|
}
|
|
if (ok_a)
|
|
{
|
|
if (IsIP6(&a))
|
|
{
|
|
Copy(ip6, &a, sizeof(IP));
|
|
}
|
|
}
|
|
|
|
if (IsZeroIp(ip4) && IsZeroIp(ip6))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
// Clean-up of the parameters for GetIP thread
|
|
void CleanupGetIPThreadParam(GETIP_THREAD_PARAM *p)
|
|
{
|
|
// Validate arguments
|
|
if (p == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Free(p);
|
|
}
|
|
|
|
// Release of the parameters of the GetIP for thread
|
|
void ReleaseGetIPThreadParam(GETIP_THREAD_PARAM *p)
|
|
{
|
|
// Validate arguments
|
|
if (p == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (Release(p->Ref) == 0)
|
|
{
|
|
CleanupGetIPThreadParam(p);
|
|
}
|
|
}
|
|
|
|
// Thread to perform to query the DNS forward lookup (with timeout)
|
|
void GetIP4Ex6ExThread(THREAD *t, void *param)
|
|
{
|
|
GETIP_THREAD_PARAM *p;
|
|
// Validate arguments
|
|
if (t == NULL || param == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
p = (GETIP_THREAD_PARAM *)param;
|
|
|
|
AddRef(p->Ref);
|
|
|
|
NoticeThreadInit(t);
|
|
|
|
AddWaitThread(t);
|
|
|
|
// Execution of resolution
|
|
if (p->IPv6 == false)
|
|
{
|
|
// IPv4
|
|
p->Ok = GetIP4Inner(&p->Ip, p->HostName);
|
|
}
|
|
else
|
|
{
|
|
// IPv6
|
|
p->Ok = GetIP6Inner(&p->Ip, p->HostName);
|
|
}
|
|
|
|
ReleaseGetIPThreadParam(p);
|
|
|
|
DelWaitThread(t);
|
|
|
|
Dec(getip_thread_counter);
|
|
}
|
|
|
|
// Perform a forward DNS query (with timeout)
|
|
bool GetIP4Ex6Ex(IP *ip, char *hostname_arg, UINT timeout, bool ipv6, bool *cancel)
|
|
{
|
|
return GetIP4Ex6Ex2(ip, hostname_arg, timeout, ipv6, cancel, false);
|
|
}
|
|
bool GetIP4Ex6Ex2(IP *ip, char *hostname_arg, UINT timeout, bool ipv6, bool *cancel, bool only_direct_dns)
|
|
{
|
|
GETIP_THREAD_PARAM *p;
|
|
THREAD *t;
|
|
bool ret = false;
|
|
UINT64 start_tick = 0;
|
|
UINT64 end_tick = 0;
|
|
UINT64 spent_time = 0;
|
|
UINT64 now;
|
|
UINT n;
|
|
bool use_dns_proxy = false;
|
|
char hostname[260];
|
|
UINT i;
|
|
bool timed_out;
|
|
// Validate arguments
|
|
if (ip == NULL || hostname_arg == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
if (timeout == 0)
|
|
{
|
|
timeout = TIMEOUT_GETIP;
|
|
}
|
|
|
|
Zero(hostname, sizeof(hostname));
|
|
StrCpy(hostname, sizeof(hostname), hostname_arg);
|
|
|
|
i = SearchStrEx(hostname, "/", 0, true);
|
|
if (i != INFINITE)
|
|
{
|
|
hostname[i] = 0;
|
|
}
|
|
|
|
if (ipv6 == false)
|
|
{
|
|
IP ip2;
|
|
|
|
if (StrToIP(&ip2, hostname) && IsZeroIp(&ip2) == false)
|
|
{
|
|
if (IsIP4(&ip2))
|
|
{
|
|
// IPv4 address direct specification
|
|
Copy(ip, &ip2, sizeof(IP));
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
// IPv6 address direct specification
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
IP ip2;
|
|
|
|
if (StrToIP(&ip2, hostname) && IsZeroIp(&ip2) == false)
|
|
{
|
|
if (IsIP6(&ip2))
|
|
{
|
|
// IPv6 address direct specification
|
|
Copy(ip, &ip2, sizeof(IP));
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
// IPv4 address direct specification
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (only_direct_dns == false)
|
|
{
|
|
if (ipv6 == false)
|
|
{
|
|
if (IsUseDnsProxy())
|
|
{
|
|
use_dns_proxy = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
// check the quota
|
|
start_tick = Tick64();
|
|
end_tick = start_tick + (UINT64)timeout;
|
|
|
|
n = 0;
|
|
|
|
timed_out = false;
|
|
|
|
while (true)
|
|
{
|
|
UINT64 now = Tick64();
|
|
UINT64 remain;
|
|
UINT remain32;
|
|
|
|
if (GetGetIpThreadMaxNum() > GetCurrentGetIpThreadNum())
|
|
{
|
|
// below the quota
|
|
break;
|
|
}
|
|
|
|
if (now >= end_tick)
|
|
{
|
|
// timeouted
|
|
timed_out = true;
|
|
break;
|
|
}
|
|
|
|
if (cancel != NULL && (*cancel))
|
|
{
|
|
// cancelled
|
|
timed_out = true;
|
|
break;
|
|
}
|
|
|
|
remain = end_tick - now;
|
|
remain32 = MIN((UINT)remain, 100);
|
|
|
|
SleepThread(remain32);
|
|
n++;
|
|
}
|
|
|
|
now = Tick64();
|
|
spent_time = now - start_tick;
|
|
|
|
if (n == 0)
|
|
{
|
|
spent_time = 0;
|
|
}
|
|
|
|
if ((UINT)spent_time >= timeout)
|
|
{
|
|
timed_out = true;
|
|
}
|
|
|
|
if (timed_out)
|
|
{
|
|
IP ip2;
|
|
|
|
// timed out, cancelled
|
|
if (QueryDnsCache(&ip2, hostname))
|
|
{
|
|
ret = true;
|
|
|
|
Copy(ip, &ip2, sizeof(IP));
|
|
}
|
|
|
|
Debug("GetIP4Ex6Ex2: Worker thread quota exceeded: max=%u current=%u\n",
|
|
GetGetIpThreadMaxNum(), GetCurrentGetIpThreadNum());
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Increment the counter
|
|
Inc(getip_thread_counter);
|
|
|
|
if (spent_time != 0)
|
|
{
|
|
Debug("GetIP4Ex6Ex2: Waited for %u msecs to create a worker thread.\n",
|
|
spent_time);
|
|
}
|
|
|
|
timeout -= (UINT)spent_time;
|
|
|
|
p = ZeroMalloc(sizeof(GETIP_THREAD_PARAM));
|
|
p->Ref = NewRef();
|
|
StrCpy(p->HostName, sizeof(p->HostName), hostname);
|
|
p->IPv6 = ipv6;
|
|
p->Timeout = timeout;
|
|
p->Ok = false;
|
|
|
|
t = NewThread(GetIP4Ex6ExThread, p);
|
|
WaitThreadInit(t);
|
|
|
|
if (cancel == NULL)
|
|
{
|
|
WaitThread(t, timeout);
|
|
}
|
|
else
|
|
{
|
|
start_tick = Tick64();
|
|
end_tick = start_tick + (UINT64)timeout;
|
|
|
|
while (true)
|
|
{
|
|
UINT64 now = Tick64();
|
|
UINT64 remain;
|
|
UINT remain32;
|
|
|
|
if (*cancel)
|
|
{
|
|
break;
|
|
}
|
|
|
|
if (now >= end_tick)
|
|
{
|
|
break;
|
|
}
|
|
|
|
remain = end_tick - now;
|
|
remain32 = MIN((UINT)remain, 100);
|
|
|
|
if (WaitThread(t, remain32))
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
ReleaseThread(t);
|
|
|
|
if (p->Ok)
|
|
{
|
|
ret = true;
|
|
Copy(ip, &p->Ip, sizeof(IP));
|
|
}
|
|
else
|
|
{
|
|
IP ip2;
|
|
|
|
#if 0
|
|
if (only_direct_dns == false)
|
|
{
|
|
if (ipv6)
|
|
{
|
|
UINT flets_type = DetectFletsType();
|
|
|
|
// if I'm in the FLETs of NTT East,
|
|
// try to get an IP address using the DNS proxy server
|
|
if ((flets_type & FLETS_DETECT_TYPE_EAST_BFLETS_PRIVATE) &&
|
|
GetIPViaDnsProxyForJapanFlets(ip, hostname, true, 0, cancel, NULL))
|
|
{
|
|
// B FLETs
|
|
ret = true;
|
|
}
|
|
else if ((flets_type & FLETS_DETECT_TYPE_EAST_NGN_PRIVATE) &&
|
|
GetIPViaDnsProxyForJapanFlets(ip, hostname, true, 0, cancel, FLETS_NGN_EAST_DNS_PROXY_HOSTNAME))
|
|
{
|
|
// FLET'S Hikar-Next (NTT East)
|
|
ret = true;
|
|
}
|
|
else if ((flets_type & FLETS_DETECT_TYPE_WEST_NGN_PRIVATE) &&
|
|
GetIPViaDnsProxyForJapanFlets(ip, hostname, true, 0, cancel, FLETS_NGN_WEST_DNS_PROXY_HOSTNAME))
|
|
{
|
|
// FLET'S Hikar-Next (NTT West)
|
|
ret = true;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if (QueryDnsCache(&ip2, hostname))
|
|
{
|
|
ret = true;
|
|
|
|
Copy(ip, &ip2, sizeof(IP));
|
|
}
|
|
}
|
|
|
|
|
|
ReleaseGetIPThreadParam(p);
|
|
|
|
return ret;
|
|
}
|
|
bool GetIP4Ex(IP *ip, char *hostname, UINT timeout, bool *cancel)
|
|
{
|
|
return GetIP4Ex6Ex(ip, hostname, timeout, false, cancel);
|
|
}
|
|
bool GetIP6Ex(IP *ip, char *hostname, UINT timeout, bool *cancel)
|
|
{
|
|
return GetIP4Ex6Ex(ip, hostname, timeout, true, cancel);
|
|
}
|
|
bool GetIP4(IP *ip, char *hostname)
|
|
{
|
|
return GetIP4Ex(ip, hostname, 0, NULL);
|
|
}
|
|
bool GetIP6(IP *ip, char *hostname)
|
|
{
|
|
return GetIP6Ex(ip, hostname, 0, NULL);
|
|
}
|
|
|
|
// Perform a DNS forward lookup query
|
|
bool GetIP(IP *ip, char *hostname)
|
|
{
|
|
return GetIPEx(ip, hostname, false);
|
|
}
|
|
bool GetIPEx(IP *ip, char *hostname, bool ipv6)
|
|
{
|
|
if (ipv6 == false)
|
|
{
|
|
return GetIP4(ip, hostname);
|
|
}
|
|
else
|
|
{
|
|
return GetIP6(ip, hostname);
|
|
}
|
|
}
|
|
bool GetIP6Inner(IP *ip, char *hostname)
|
|
{
|
|
struct sockaddr_in6 in;
|
|
struct in6_addr addr;
|
|
struct addrinfo hint;
|
|
struct addrinfo *info;
|
|
// Validate arguments
|
|
if (ip == NULL || hostname == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (IsEmptyStr(hostname))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (StrCmpi(hostname, "localhost") == 0)
|
|
{
|
|
GetLocalHostIP6(ip);
|
|
return true;
|
|
}
|
|
|
|
if (StrToIP6(ip, hostname) == false && StrToIP(ip, hostname) == false)
|
|
{
|
|
// Forward resolution
|
|
Zero(&hint, sizeof(hint));
|
|
hint.ai_family = AF_INET6;
|
|
hint.ai_socktype = SOCK_STREAM;
|
|
hint.ai_protocol = IPPROTO_TCP;
|
|
info = NULL;
|
|
|
|
if (getaddrinfo(hostname, NULL, &hint, &info) != 0 ||
|
|
info->ai_family != AF_INET6)
|
|
{
|
|
if (info)
|
|
{
|
|
freeaddrinfo(info);
|
|
}
|
|
return QueryDnsCacheEx(ip, hostname, true);
|
|
}
|
|
// Forward resolution success
|
|
Copy(&in, info->ai_addr, sizeof(struct sockaddr_in6));
|
|
freeaddrinfo(info);
|
|
|
|
Copy(&addr, &in.sin6_addr, sizeof(addr));
|
|
InAddrToIP6(ip, &addr);
|
|
}
|
|
|
|
// Save Cache
|
|
NewDnsCache(hostname, ip);
|
|
|
|
return true;
|
|
}
|
|
bool GetIP4Inner(IP *ip, char *hostname)
|
|
{
|
|
struct sockaddr_in in;
|
|
struct in_addr addr;
|
|
struct addrinfo hint;
|
|
struct addrinfo *info;
|
|
// Validate arguments
|
|
if (ip == NULL || hostname == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (IsEmptyStr(hostname))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (StrCmpi(hostname, "localhost") == 0)
|
|
{
|
|
SetIP(ip, 127, 0, 0, 1);
|
|
return true;
|
|
}
|
|
|
|
if (StrToIP6(ip, hostname) == false && StrToIP(ip, hostname) == false)
|
|
{
|
|
// Forward resolution
|
|
Zero(&hint, sizeof(hint));
|
|
hint.ai_family = AF_INET;
|
|
hint.ai_socktype = SOCK_STREAM;
|
|
hint.ai_protocol = IPPROTO_TCP;
|
|
info = NULL;
|
|
|
|
if (getaddrinfo(hostname, NULL, &hint, &info) != 0 ||
|
|
info->ai_family != AF_INET)
|
|
{
|
|
if (info)
|
|
{
|
|
freeaddrinfo(info);
|
|
}
|
|
return QueryDnsCache(ip, hostname);
|
|
}
|
|
// Forward resolution success
|
|
Copy(&in, info->ai_addr, sizeof(struct sockaddr_in));
|
|
freeaddrinfo(info);
|
|
Copy(&addr, &in.sin_addr, sizeof(addr));
|
|
InAddrToIP(ip, &addr);
|
|
}
|
|
|
|
// Save Cache
|
|
NewDnsCache(hostname, ip);
|
|
|
|
return true;
|
|
}
|
|
|
|
// Search in the DNS cache
|
|
bool QueryDnsCache(IP *ip, char *hostname)
|
|
{
|
|
return QueryDnsCacheEx(ip, hostname, false);
|
|
}
|
|
bool QueryDnsCacheEx(IP *ip, char *hostname, bool ipv6)
|
|
{
|
|
DNSCACHE *c;
|
|
char tmp[MAX_SIZE];
|
|
// Validate arguments
|
|
if (ip == NULL || hostname == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
GenDnsCacheKeyName(tmp, sizeof(tmp), hostname, ipv6);
|
|
|
|
c = FindDnsCache(tmp);
|
|
if (c == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
Copy(ip, &c->IpAddress, sizeof(IP));
|
|
|
|
return true;
|
|
}
|
|
|
|
// Convert the IP to a string
|
|
void IPToUniStr(wchar_t *str, UINT size, IP *ip)
|
|
{
|
|
char tmp[128];
|
|
|
|
IPToStr(tmp, sizeof(tmp), ip);
|
|
StrToUni(str, size, tmp);
|
|
}
|
|
|
|
// Convert the IP to a string (32bit UINT)
|
|
void IPToUniStr32(wchar_t *str, UINT size, UINT ip)
|
|
{
|
|
char tmp[128];
|
|
|
|
IPToStr32(tmp, sizeof(tmp), ip);
|
|
StrToUni(str, size, tmp);
|
|
}
|
|
|
|
// Convert the IP to a string (32bit UINT)
|
|
void IPToStr32(char *str, UINT size, UINT ip)
|
|
{
|
|
IP ip_st;
|
|
// Validate arguments
|
|
if (str == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
UINTToIP(&ip_st, ip);
|
|
IPToStr(str, size, &ip_st);
|
|
}
|
|
|
|
// Convert IPv4 or IPv6 to a string
|
|
void IPToStr4or6(char *str, UINT size, UINT ip_4_uint, UCHAR *ip_6_bytes)
|
|
{
|
|
IP ip4;
|
|
IP ip6;
|
|
IP ip;
|
|
// Validate arguments
|
|
if (str == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Zero(&ip, sizeof(ip));
|
|
|
|
UINTToIP(&ip4, ip_4_uint);
|
|
SetIP6(&ip6, ip_6_bytes);
|
|
|
|
if (IsIP6(&ip4) || (IsZeroIp(&ip4) && (IsZeroIp(&ip6) == false)))
|
|
{
|
|
Copy(&ip, &ip6, sizeof(IP));
|
|
}
|
|
else
|
|
{
|
|
Copy(&ip, &ip4, sizeof(IP));
|
|
}
|
|
|
|
IPToStr(str, size, &ip);
|
|
}
|
|
|
|
// Convert the IP to a string
|
|
void IPToStr(char *str, UINT size, IP *ip)
|
|
{
|
|
// Validate arguments
|
|
if (str == NULL || ip == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (IsIP6(ip))
|
|
{
|
|
IPToStr6(str, size, ip);
|
|
}
|
|
else
|
|
{
|
|
IPToStr4(str, size, ip);
|
|
}
|
|
}
|
|
|
|
// Convert the IPv4 to a string
|
|
void IPToStr4(char *str, UINT size, IP *ip)
|
|
{
|
|
// Validate arguments
|
|
if (str == NULL || ip == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
// Conversion
|
|
snprintf(str, size != 0 ? size : 64, "%u.%u.%u.%u", ip->addr[0], ip->addr[1], ip->addr[2], ip->addr[3]);
|
|
}
|
|
|
|
// Convert the string to an IP
|
|
bool StrToIP(IP *ip, char *str)
|
|
{
|
|
TOKEN_LIST *token;
|
|
char *tmp;
|
|
UINT i;
|
|
// Validate arguments
|
|
if (ip == NULL || str == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (StrToIP6(ip, str))
|
|
{
|
|
return true;
|
|
}
|
|
|
|
Zero(ip, sizeof(IP));
|
|
|
|
tmp = CopyStr(str);
|
|
Trim(tmp);
|
|
token = ParseToken(tmp, ".");
|
|
Free(tmp);
|
|
|
|
if (token->NumTokens != 4)
|
|
{
|
|
FreeToken(token);
|
|
return false;
|
|
}
|
|
for (i = 0; i < 4; i++)
|
|
{
|
|
char *s = token->Token[i];
|
|
if (s[0] < '0' || s[0] > '9' ||
|
|
(ToInt(s) >= 256))
|
|
{
|
|
FreeToken(token);
|
|
return false;
|
|
}
|
|
}
|
|
Zero(ip, sizeof(IP));
|
|
for (i = 0; i < 4; i++)
|
|
{
|
|
ip->addr[i] = (UCHAR)ToInt(token->Token[i]);
|
|
}
|
|
|
|
FreeToken(token);
|
|
|
|
return true;
|
|
}
|
|
UINT StrToIP32(char *str)
|
|
{
|
|
IP ip;
|
|
// Validate arguments
|
|
if (str == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (StrToIP(&ip, str) == false)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
return IPToUINT(&ip);
|
|
}
|
|
UINT UniStrToIP32(wchar_t *str)
|
|
{
|
|
UINT ret;
|
|
char *tmp;
|
|
|
|
tmp = CopyUniToStr(str);
|
|
ret = StrToIP32(tmp);
|
|
Free(tmp);
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Convert the IP to the in_addr
|
|
void IPToInAddr(struct in_addr *addr, IP *ip)
|
|
{
|
|
UINT i;
|
|
// Validate arguments
|
|
if (addr == NULL || ip == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Zero(addr, sizeof(struct in_addr));
|
|
|
|
if (IsIP6(ip) == false)
|
|
{
|
|
for (i = 0; i < 4; i++)
|
|
{
|
|
((UCHAR *)addr)[i] = ip->addr[i];
|
|
}
|
|
}
|
|
}
|
|
|
|
// Convert the IP to the in6_addr
|
|
void IPToInAddr6(struct in6_addr *addr, IP *ip)
|
|
{
|
|
UINT i;
|
|
// Validate arguments
|
|
if (addr == NULL || ip == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Zero(addr, sizeof(struct in6_addr));
|
|
|
|
if (IsIP6(ip))
|
|
{
|
|
for (i = 0; i < 16; i++)
|
|
{
|
|
((UCHAR *)addr)[i] = ip->ipv6_addr[i];
|
|
}
|
|
}
|
|
}
|
|
|
|
// Convert the in_addr to the IP
|
|
void InAddrToIP(IP *ip, struct in_addr *addr)
|
|
{
|
|
UINT i;
|
|
// Validate arguments
|
|
if (ip == NULL || addr == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Zero(ip, sizeof(IP));
|
|
|
|
for (i = 0; i < 4; i++)
|
|
{
|
|
ip->addr[i] = ((UCHAR *)addr)[i];
|
|
}
|
|
}
|
|
|
|
// Convert the in6_addr to the IP
|
|
void InAddrToIP6(IP *ip, struct in6_addr *addr)
|
|
{
|
|
UINT i;
|
|
// Validate arguments
|
|
if (ip == NULL || addr == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
ZeroIP6(ip);
|
|
for (i = 0; i < 16; i++)
|
|
{
|
|
ip->ipv6_addr[i] = ((UCHAR *)addr)[i];
|
|
}
|
|
}
|
|
|
|
// Search in the DNS cache
|
|
DNSCACHE *FindDnsCache(char *hostname)
|
|
{
|
|
return FindDnsCacheEx(hostname, false);
|
|
}
|
|
DNSCACHE *FindDnsCacheEx(char *hostname, bool ipv6)
|
|
{
|
|
DNSCACHE *c;
|
|
char tmp[MAX_SIZE];
|
|
if (hostname == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
GenDnsCacheKeyName(tmp, sizeof(tmp), hostname, ipv6);
|
|
|
|
LockDnsCache();
|
|
{
|
|
DNSCACHE t;
|
|
t.HostName = tmp;
|
|
c = Search(DnsCache, &t);
|
|
}
|
|
UnlockDnsCache();
|
|
|
|
return c;
|
|
}
|
|
|
|
// Generate the IPv4 / IPv6 key name for the DNS cache
|
|
void GenDnsCacheKeyName(char *dst, UINT size, char *src, bool ipv6)
|
|
{
|
|
// Validate arguments
|
|
if (dst == NULL || src == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (ipv6 == false)
|
|
{
|
|
StrCpy(dst, size, src);
|
|
}
|
|
else
|
|
{
|
|
Format(dst, size, "%s@ipv6", src);
|
|
}
|
|
}
|
|
|
|
// Registration of the new DNS cache
|
|
void NewDnsCache(char *hostname, IP *ip)
|
|
{
|
|
NewDnsCacheEx(hostname, ip, IsIP6(ip));
|
|
}
|
|
void NewDnsCacheEx(char *hostname, IP *ip, bool ipv6)
|
|
{
|
|
DNSCACHE *c;
|
|
char tmp[MAX_PATH];
|
|
// Validate arguments
|
|
if (hostname == NULL || ip == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (IsNetworkNameCacheEnabled() == false)
|
|
{
|
|
return;
|
|
}
|
|
|
|
GenDnsCacheKeyName(tmp, sizeof(tmp), hostname, ipv6);
|
|
|
|
LockDnsCache();
|
|
{
|
|
DNSCACHE t;
|
|
|
|
// Search for anything matches to the hostname first
|
|
t.HostName = tmp;
|
|
c = Search(DnsCache, &t);
|
|
|
|
if (c == NULL)
|
|
{
|
|
// Newly register
|
|
c = ZeroMalloc(sizeof(DNSCACHE));
|
|
c->HostName = CopyStr(tmp);
|
|
|
|
Copy(&c->IpAddress, ip, sizeof(IP));
|
|
|
|
Add(DnsCache, c);
|
|
}
|
|
else
|
|
{
|
|
// Update
|
|
Copy(&c->IpAddress, ip, sizeof(IP));
|
|
}
|
|
}
|
|
UnlockDnsCache();
|
|
}
|
|
|
|
// Name comparison of the DNS cache entries
|
|
int CompareDnsCache(void *p1, void *p2)
|
|
{
|
|
DNSCACHE *c1, *c2;
|
|
if (p1 == NULL || p2 == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
c1 = *(DNSCACHE **)p1;
|
|
c2 = *(DNSCACHE **)p2;
|
|
if (c1 == NULL || c2 == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
return StrCmpi(c1->HostName, c2->HostName);
|
|
}
|
|
|
|
// Initialization of the DNS cache
|
|
void InitDnsCache()
|
|
{
|
|
// Creating a List
|
|
DnsCache = NewList(CompareDnsCache);
|
|
}
|
|
|
|
// Release of the DNS cache
|
|
void FreeDnsCache()
|
|
{
|
|
LockDnsCache();
|
|
{
|
|
DNSCACHE *c;
|
|
UINT i;
|
|
for (i = 0; i < LIST_NUM(DnsCache); i++)
|
|
{
|
|
// Release the memory for the entry
|
|
c = LIST_DATA(DnsCache, i);
|
|
Free(c->HostName);
|
|
Free(c);
|
|
}
|
|
}
|
|
UnlockDnsCache();
|
|
|
|
// Release the list
|
|
ReleaseList(DnsCache);
|
|
DnsCache = NULL;
|
|
}
|
|
|
|
// Lock the DNS cache
|
|
void LockDnsCache()
|
|
{
|
|
LockList(DnsCache);
|
|
}
|
|
|
|
// Unlock the DNS cache
|
|
void UnlockDnsCache()
|
|
{
|
|
UnlockList(DnsCache);
|
|
}
|
|
|
|
// DH temp key callback
|
|
DH *TmpDhCallback(SSL *ssl, int is_export, int keylength)
|
|
{
|
|
DH *ret = NULL;
|
|
|
|
if (dh_param != NULL)
|
|
{
|
|
ret = dh_param->dh;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Create the SSL_CTX
|
|
struct ssl_ctx_st *NewSSLCtx(bool server_mode)
|
|
{
|
|
struct ssl_ctx_st *ctx = SSL_CTX_new(SSLv23_method());
|
|
|
|
// It resets some parameters.
|
|
if (server_mode)
|
|
{
|
|
SSL_CTX_set_ssl_version(ctx, SSLv23_server_method());
|
|
}
|
|
else
|
|
{
|
|
SSL_CTX_set_ssl_version(ctx, SSLv23_client_method());
|
|
}
|
|
|
|
#ifdef SSL_OP_NO_SSLv3
|
|
SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv3);
|
|
#endif // SSL_OP_NO_SSLv3
|
|
|
|
#ifdef SSL_OP_NO_TICKET
|
|
SSL_CTX_set_options(ctx, SSL_OP_NO_TICKET);
|
|
#endif // SSL_OP_NO_TICKET
|
|
|
|
#ifdef SSL_OP_CIPHER_SERVER_PREFERENCE
|
|
if (server_mode)
|
|
{
|
|
SSL_CTX_set_options(ctx, SSL_OP_CIPHER_SERVER_PREFERENCE);
|
|
}
|
|
#endif // SSL_OP_CIPHER_SERVER_PREFERENCE
|
|
|
|
SSL_CTX_set_tmp_dh_callback(ctx, TmpDhCallback);
|
|
|
|
#ifdef SSL_CTX_set_ecdh_auto
|
|
SSL_CTX_set_ecdh_auto(ctx, 1);
|
|
#endif // SSL_CTX_set_ecdh_auto
|
|
|
|
return ctx;
|
|
}
|
|
|
|
// Release of the SSL_CTX
|
|
void FreeSSLCtx(struct ssl_ctx_st *ctx)
|
|
{
|
|
// Validate arguments
|
|
if (ctx == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
SSL_CTX_free(ctx);
|
|
}
|
|
|
|
// Get OS (maximum) Security Level
|
|
UINT GetOSSecurityLevel()
|
|
{
|
|
UINT security_level_new = 0, security_level_set_ssl_version = 0;
|
|
struct ssl_ctx_st *ctx = SSL_CTX_new(SSLv23_method());
|
|
|
|
#if OPENSSL_VERSION_NUMBER >= 0x10100000L && !defined(LIBRESSL_VERSION_NUMBER)
|
|
security_level_new = SSL_CTX_get_security_level(ctx);
|
|
#endif
|
|
|
|
security_level_set_ssl_version = SSL_CTX_set_ssl_version(ctx, SSLv23_server_method());
|
|
|
|
FreeSSLCtx(ctx);
|
|
|
|
if(security_level_new >= security_level_set_ssl_version)
|
|
{
|
|
return security_level_new;
|
|
}
|
|
|
|
return security_level_set_ssl_version;
|
|
}
|
|
|
|
// The number of get ip threads
|
|
void SetGetIpThreadMaxNum(UINT num)
|
|
{
|
|
max_getip_thread = num;
|
|
}
|
|
UINT GetGetIpThreadMaxNum()
|
|
{
|
|
UINT ret = max_getip_thread;
|
|
|
|
if (ret == 0)
|
|
{
|
|
ret = 0x7FFFFFFF;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
UINT GetCurrentGetIpThreadNum()
|
|
{
|
|
return Count(getip_thread_counter);
|
|
}
|
|
|
|
// Initialize the network communication module
|
|
void InitNetwork()
|
|
{
|
|
disable_gethostname_by_accept = false;
|
|
|
|
|
|
InitDynList();
|
|
|
|
|
|
host_ip_address_list_cache_lock = NewLock();
|
|
host_ip_address_list_cache_last = 0;
|
|
|
|
num_tcp_connections = NewCounter();
|
|
|
|
getip_thread_counter = NewCounter();
|
|
|
|
// Initialization of client list
|
|
InitIpClientList();
|
|
|
|
// Thread related initialization
|
|
InitWaitThread();
|
|
|
|
// Initialization of the host name cache
|
|
InitHostCache();
|
|
|
|
#ifdef OS_WIN32
|
|
// Initializing the socket library
|
|
Win32InitSocketLibrary();
|
|
#else
|
|
UnixInitSocketLibrary();
|
|
#endif // OS_WIN32
|
|
|
|
// Initialization of the DNS cache
|
|
InitDnsCache();
|
|
|
|
// Locking initialization
|
|
machine_name_lock = NewLock();
|
|
disconnect_function_lock = NewLock();
|
|
aho = NewLock();
|
|
machine_ip_process_hash_lock = NewLock();
|
|
socket_library_lock = NewLock();
|
|
//ssl_connect_lock = NewLock(); //2012.9.28 Not required for recent OpenSSL
|
|
// ssl_accept_lock = NewLock();
|
|
dns_lock = NewLock();
|
|
unix_dns_server_addr_lock = NewLock();
|
|
Zero(&unix_dns_server, sizeof(unix_dns_server));
|
|
local_mac_list_lock = NewLock();
|
|
|
|
current_global_ip_lock = NewLock();
|
|
current_fqdn_lock = NewLock();
|
|
current_global_ip_set = false;
|
|
|
|
disable_cache = false;
|
|
|
|
Zero(rand_port_numbers, sizeof(rand_port_numbers));
|
|
|
|
SetGetIpThreadMaxNum(DEFAULT_GETIP_THREAD_MAX_NUM);
|
|
}
|
|
|
|
// Enable the network name cache
|
|
void EnableNetworkNameCache()
|
|
{
|
|
disable_cache = false;
|
|
}
|
|
|
|
// Disable the network name cache
|
|
void DisableNetworkNameCache()
|
|
{
|
|
disable_cache = true;
|
|
}
|
|
|
|
// Get whether the network name cache is enabled
|
|
bool IsNetworkNameCacheEnabled()
|
|
{
|
|
return !disable_cache;
|
|
}
|
|
|
|
// Get the cipher algorithm list
|
|
TOKEN_LIST *GetCipherList()
|
|
{
|
|
UINT i;
|
|
SSL *ssl;
|
|
SSL_CTX *ctx;
|
|
const char *name;
|
|
STACK_OF(SSL_CIPHER) *sk;
|
|
|
|
TOKEN_LIST *ciphers = ZeroMalloc(sizeof(TOKEN_LIST));
|
|
|
|
ctx = NewSSLCtx(true);
|
|
if (ctx == NULL)
|
|
{
|
|
return ciphers;
|
|
}
|
|
|
|
ssl = SSL_new(ctx);
|
|
if (ssl == NULL)
|
|
{
|
|
FreeSSLCtx(ctx);
|
|
return ciphers;
|
|
}
|
|
|
|
#if OPENSSL_VERSION_NUMBER >= 0x10100000L && !defined(LIBRESSL_VERSION_NUMBER)
|
|
sk = SSL_get1_supported_ciphers(ssl);
|
|
#else
|
|
sk = SSL_get_ciphers(ssl);
|
|
#endif
|
|
|
|
for (i = 0; i < (UINT)sk_SSL_CIPHER_num(sk); i++)
|
|
{
|
|
const SSL_CIPHER *c = sk_SSL_CIPHER_value(sk, i);
|
|
|
|
name = SSL_CIPHER_get_name(c);
|
|
if (IsEmptyStr((char *)name))
|
|
{
|
|
break;
|
|
}
|
|
|
|
ciphers->NumTokens++;
|
|
|
|
if (ciphers->Token != NULL)
|
|
{
|
|
ciphers->Token = ReAlloc(ciphers->Token, sizeof(char *) * ciphers->NumTokens);
|
|
}
|
|
else
|
|
{
|
|
ciphers->Token = Malloc(sizeof(char *));
|
|
}
|
|
|
|
ciphers->Token[i] = CopyStr((char *)name);
|
|
}
|
|
|
|
sk_SSL_CIPHER_free(sk);
|
|
SSL_free(ssl);
|
|
|
|
return ciphers;
|
|
}
|
|
|
|
// Get the TCP connections counter
|
|
COUNTER *GetNumTcpConnectionsCounter()
|
|
{
|
|
return num_tcp_connections;
|
|
}
|
|
|
|
// Get the current global IP address
|
|
bool GetCurrentGlobalIP(IP *ip, bool ipv6)
|
|
{
|
|
bool ret = false;
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
Zero(ip, sizeof(IP));
|
|
|
|
Lock(current_global_ip_lock);
|
|
{
|
|
if (ipv6 == false)
|
|
{
|
|
Copy(ip, ¤t_glocal_ipv4, sizeof(IP));
|
|
}
|
|
else
|
|
{
|
|
Copy(ip, ¤t_glocal_ipv6, sizeof(IP));
|
|
}
|
|
|
|
ret = current_global_ip_set;
|
|
}
|
|
Unlock(current_global_ip_lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Check whether the specified IP address is assigned to the local host
|
|
bool IsIPMyHost(IP *ip)
|
|
{
|
|
LIST *o;
|
|
UINT i;
|
|
bool ret = false;
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (IsZeroIp(ip))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// Search to check whether it matches to any of the IP of the local host
|
|
o = GetHostIPAddressList();
|
|
|
|
for (i = 0; i < LIST_NUM(o); i++)
|
|
{
|
|
IP *p = LIST_DATA(o, i);
|
|
|
|
if (CmpIpAddr(p, ip) == 0)
|
|
{
|
|
// Matched
|
|
ret = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
FreeHostIPAddressList(o);
|
|
|
|
if (ret == false)
|
|
{
|
|
if (IsLocalHostIP(ip))
|
|
{
|
|
// localhost IP addresses
|
|
ret = true;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Check whether the specified IP address is a private IP address
|
|
bool IsIPPrivate(IP *ip)
|
|
{
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (ip->addr[0] == 10)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
if (ip->addr[0] == 172)
|
|
{
|
|
if (ip->addr[1] >= 16 && ip->addr[1] <= 31)
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
|
|
if (ip->addr[0] == 192 && ip->addr[1] == 168)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
if (ip->addr[0] == 169 && ip->addr[1] == 254)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
if (ip->addr[0] == 100)
|
|
{
|
|
if (ip->addr[1] >= 64 && ip->addr[1] <= 127)
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
|
|
if (g_private_ip_list != NULL)
|
|
{
|
|
if (IsIP4(ip))
|
|
{
|
|
UINT ip4 = IPToUINT(ip);
|
|
|
|
return IsOnPrivateIPFile(ip4);
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
// Read a private IP list file
|
|
void LoadPrivateIPFile()
|
|
{
|
|
BUF *b = ReadDump(PRIVATE_IP_TXT_FILENAME);
|
|
LIST *o;
|
|
if (b == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
o = NewList(NULL);
|
|
|
|
while (true)
|
|
{
|
|
char *line = CfgReadNextLine(b);
|
|
if (line == NULL)
|
|
{
|
|
break;
|
|
}
|
|
|
|
Trim(line);
|
|
|
|
if (IsEmptyStr(line) == false)
|
|
{
|
|
UINT ip = 0, mask = 0;
|
|
|
|
if (ParseIpAndSubnetMask4(line, &ip, &mask))
|
|
{
|
|
PRIVATE_IP_SUBNET *p = ZeroMalloc(sizeof(PRIVATE_IP_SUBNET));
|
|
|
|
p->Ip = ip;
|
|
p->Mask = mask;
|
|
p->Ip2 = ip & mask;
|
|
|
|
Add(o, p);
|
|
}
|
|
}
|
|
|
|
Free(line);
|
|
}
|
|
|
|
g_private_ip_list = o;
|
|
g_use_privateip_file = true;
|
|
|
|
FreeBuf(b);
|
|
}
|
|
|
|
// Examine whether the specified IP address is in the private IP file
|
|
bool IsOnPrivateIPFile(UINT ip)
|
|
{
|
|
bool ret = false;
|
|
|
|
if (g_private_ip_list != NULL)
|
|
{
|
|
LIST *o = g_private_ip_list;
|
|
UINT i;
|
|
|
|
for (i = 0; i < LIST_NUM(o); i++)
|
|
{
|
|
PRIVATE_IP_SUBNET *p = LIST_DATA(o, i);
|
|
|
|
if ((ip & p->Mask) == p->Ip2)
|
|
{
|
|
ret = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Free the private IP file
|
|
void FreePrivateIPFile()
|
|
{
|
|
if (g_private_ip_list != NULL)
|
|
{
|
|
LIST *o = g_private_ip_list;
|
|
UINT i;
|
|
|
|
g_private_ip_list = NULL;
|
|
|
|
for (i = 0; i < LIST_NUM(o); i++)
|
|
{
|
|
PRIVATE_IP_SUBNET *p = LIST_DATA(o, i);
|
|
|
|
Free(p);
|
|
}
|
|
|
|
ReleaseList(o);
|
|
}
|
|
|
|
g_use_privateip_file = false;
|
|
}
|
|
|
|
// Check whether the specified IP address is in the same network to this computer
|
|
bool IsIPAddressInSameLocalNetwork(IP *a)
|
|
{
|
|
bool ret = false;
|
|
LIST *o;
|
|
UINT i;
|
|
// Validate arguments
|
|
if (a == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
o = GetHostIPAddressList();
|
|
|
|
if (o != NULL)
|
|
{
|
|
for (i = 0; i < LIST_NUM(o); i++)
|
|
{
|
|
IP *p = LIST_DATA(o, i);
|
|
|
|
if (IsIP4(p))
|
|
{
|
|
if (IsZeroIp(p) == false && p->addr[0] != 127)
|
|
{
|
|
if (IsInSameNetwork4Standard(p, a))
|
|
{
|
|
ret = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
FreeHostIPAddressList(o);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Guess the IPv4, IPv6 global address from the IP address list of the current interface
|
|
void GetCurrentGlobalIPGuess(IP *ip, bool ipv6)
|
|
{
|
|
LIST *o;
|
|
UINT i;
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Zero(ip, sizeof(IP));
|
|
|
|
o = GetHostIPAddressList();
|
|
|
|
if (ipv6 == false)
|
|
{
|
|
// IPv4
|
|
for (i = 0; i < LIST_NUM(o); i++)
|
|
{
|
|
IP *p = LIST_DATA(o, i);
|
|
|
|
if (IsIP4(p))
|
|
{
|
|
if (IsZeroIp(p) == false && IsIPPrivate(p) == false && p->addr[0] != 127)
|
|
{
|
|
Copy(ip, p, sizeof(IP));
|
|
}
|
|
}
|
|
}
|
|
|
|
if (IsZeroIp(ip))
|
|
{
|
|
for (i = 0; i < LIST_NUM(o); i++)
|
|
{
|
|
IP *p = LIST_DATA(o, i);
|
|
|
|
if (IsIP4(p))
|
|
{
|
|
if (IsZeroIp(p) == false && IsIPPrivate(p) && p->addr[0] != 127)
|
|
{
|
|
Copy(ip, p, sizeof(IP));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (IsZeroIp(ip))
|
|
{
|
|
SetIP(ip, 127, 0, 0, 1);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// IPv6
|
|
for (i = 0; i < LIST_NUM(o); i++)
|
|
{
|
|
IP *p = LIST_DATA(o, i);
|
|
|
|
if (IsIP6(p))
|
|
{
|
|
UINT type = GetIPAddrType6(p);
|
|
|
|
if ((type & IPV6_ADDR_GLOBAL_UNICAST) && ((type & IPV6_ADDR_ZERO) == 0) && ((type & IPV6_ADDR_LOOPBACK) == 0))
|
|
{
|
|
Copy(ip, p, sizeof(IP));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
FreeHostIPAddressList(o);
|
|
}
|
|
|
|
// Record the current global IP address
|
|
void SetCurrentGlobalIP(IP *ip, bool ipv6)
|
|
{
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (IsZeroIp(ip))
|
|
{
|
|
return;
|
|
}
|
|
|
|
Lock(current_global_ip_lock);
|
|
{
|
|
if (ipv6 == false)
|
|
{
|
|
Copy(¤t_glocal_ipv4, ip, sizeof(IP));
|
|
}
|
|
else
|
|
{
|
|
Copy(¤t_glocal_ipv6, ip, sizeof(IP));
|
|
}
|
|
|
|
current_global_ip_set = true;
|
|
}
|
|
Unlock(current_global_ip_lock);
|
|
}
|
|
|
|
// Release of the network communication module
|
|
void FreeNetwork()
|
|
{
|
|
|
|
if (dh_param != NULL)
|
|
{
|
|
DhFree(dh_param);
|
|
dh_param = NULL;
|
|
}
|
|
|
|
// Release of thread-related
|
|
FreeWaitThread();
|
|
|
|
Zero(&unix_dns_server, sizeof(unix_dns_server));
|
|
|
|
// Release the locks
|
|
DeleteLock(unix_dns_server_addr_lock);
|
|
DeleteLock(dns_lock);
|
|
DeleteLock(ssl_accept_lock);
|
|
DeleteLock(machine_name_lock);
|
|
DeleteLock(disconnect_function_lock);
|
|
DeleteLock(aho);
|
|
DeleteLock(socket_library_lock);
|
|
DeleteLock(ssl_connect_lock);
|
|
DeleteLock(machine_ip_process_hash_lock);
|
|
machine_name_lock = NULL;
|
|
ssl_accept_lock = machine_name_lock = disconnect_function_lock =
|
|
aho = socket_library_lock = ssl_connect_lock = machine_ip_process_hash_lock = NULL;
|
|
|
|
// Release of the DNS cache
|
|
FreeDnsCache();
|
|
|
|
// Release of the host name cache
|
|
FreeHostCache();
|
|
|
|
#ifdef OS_WIN32
|
|
// Release of the socket library
|
|
Win32FreeSocketLibrary();
|
|
#else
|
|
UnixFreeSocketLibrary();
|
|
#endif // OS_WIN32
|
|
|
|
DeleteCounter(num_tcp_connections);
|
|
num_tcp_connections = NULL;
|
|
|
|
// Release of client list
|
|
FreeIpClientList();
|
|
|
|
DeleteLock(current_global_ip_lock);
|
|
current_global_ip_lock = NULL;
|
|
|
|
DeleteLock(current_fqdn_lock);
|
|
current_fqdn_lock = NULL;
|
|
|
|
// Release of the local MAC list
|
|
if (local_mac_list != NULL)
|
|
{
|
|
FreeNicList(local_mac_list);
|
|
local_mac_list = NULL;
|
|
}
|
|
|
|
DeleteLock(local_mac_list_lock);
|
|
local_mac_list_lock = NULL;
|
|
|
|
DeleteLock(host_ip_address_list_cache_lock);
|
|
host_ip_address_list_cache_lock = NULL;
|
|
|
|
FreeHostIPAddressList(host_ip_address_cache);
|
|
host_ip_address_cache = NULL;
|
|
|
|
|
|
FreeDynList();
|
|
|
|
DeleteCounter(getip_thread_counter);
|
|
getip_thread_counter = NULL;
|
|
|
|
}
|
|
|
|
// Stop all the sockets in the list and delete it
|
|
void StopSockList(SOCKLIST *sl)
|
|
{
|
|
SOCK **ss;
|
|
UINT num, i;
|
|
// Validate arguments
|
|
if (sl == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
LockList(sl->SockList);
|
|
{
|
|
num = LIST_NUM(sl->SockList);
|
|
ss = ToArray(sl->SockList);
|
|
|
|
DeleteAll(sl->SockList);
|
|
}
|
|
UnlockList(sl->SockList);
|
|
|
|
for (i = 0; i < num; i++)
|
|
{
|
|
SOCK *s = ss[i];
|
|
|
|
Disconnect(s);
|
|
ReleaseSock(s);
|
|
}
|
|
|
|
Free(ss);
|
|
}
|
|
|
|
// Delete the socket list
|
|
void FreeSockList(SOCKLIST *sl)
|
|
{
|
|
// Validate arguments
|
|
if (sl == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
StopSockList(sl);
|
|
|
|
ReleaseList(sl->SockList);
|
|
|
|
Free(sl);
|
|
}
|
|
|
|
// Creating a socket list
|
|
SOCKLIST *NewSockList()
|
|
{
|
|
SOCKLIST *sl = ZeroMallocFast(sizeof(SOCKLIST));
|
|
|
|
sl->SockList = NewList(NULL);
|
|
|
|
return sl;
|
|
}
|
|
|
|
// Time-out thread of the socket on Solaris
|
|
void SocketTimeoutThread(THREAD *t, void *param)
|
|
{
|
|
SOCKET_TIMEOUT_PARAM *ttparam;
|
|
ttparam = (SOCKET_TIMEOUT_PARAM *)param;
|
|
|
|
// Wait for time-out period
|
|
Select(NULL, ttparam->sock->TimeOut, ttparam->cancel, NULL);
|
|
|
|
// Disconnect if it is blocked
|
|
if(! ttparam->unblocked)
|
|
{
|
|
// Debug("Socket timeouted\n");
|
|
closesocket(ttparam->sock->socket);
|
|
}
|
|
else
|
|
{
|
|
// Debug("Socket timeout cancelled\n");
|
|
}
|
|
}
|
|
|
|
// Initialize and start the thread for time-out
|
|
SOCKET_TIMEOUT_PARAM *NewSocketTimeout(SOCK *sock)
|
|
{
|
|
SOCKET_TIMEOUT_PARAM *ttp;
|
|
if(! sock->AsyncMode && sock->TimeOut != TIMEOUT_INFINITE)
|
|
{
|
|
// Debug("NewSockTimeout(%u)\n",sock->TimeOut);
|
|
|
|
ttp = (SOCKET_TIMEOUT_PARAM *)Malloc(sizeof(SOCKET_TIMEOUT_PARAM));
|
|
|
|
// Set the parameters of the time-out thread
|
|
ttp->cancel = NewCancel();
|
|
ttp->sock = sock;
|
|
ttp->unblocked = false;
|
|
ttp->thread = NewThread(SocketTimeoutThread, ttp);
|
|
return ttp;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
// Stop and free the thread for timeout
|
|
void FreeSocketTimeout(SOCKET_TIMEOUT_PARAM *ttp)
|
|
{
|
|
if(ttp == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
ttp->unblocked = true;
|
|
Cancel(ttp->cancel);
|
|
WaitThread(ttp->thread, INFINITE);
|
|
ReleaseCancel(ttp->cancel);
|
|
ReleaseThread(ttp->thread);
|
|
Free(ttp);
|
|
// Debug("FreeSocketTimeout succeed\n");
|
|
return;
|
|
}
|
|
|
|
// Parse the IP address and subnet mask
|
|
bool ParseIpAndSubnetMask46(char *src, IP *ip, IP *mask)
|
|
{
|
|
// Validate arguments
|
|
if (src == NULL || ip == NULL || mask == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (ParseIpAndMask46(src, ip, mask) == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (IsIP4(ip))
|
|
{
|
|
return IsSubnetMask4(mask);
|
|
}
|
|
else
|
|
{
|
|
return IsSubnetMask6(mask);
|
|
}
|
|
}
|
|
bool ParseIpAndSubnetMask4(char *src, UINT *ip, UINT *mask)
|
|
{
|
|
IP ip2, mask2;
|
|
// Validate arguments
|
|
if (src == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (ParseIpAndSubnetMask46(src, &ip2, &mask2) == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (IsIP4(&ip2) == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (ip != NULL)
|
|
{
|
|
*ip = IPToUINT(&ip2);
|
|
}
|
|
|
|
if (mask != NULL)
|
|
{
|
|
*mask = IPToUINT(&mask2);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
// Parse the IP address and the mask
|
|
bool ParseIpAndMask46(char *src, IP *ip, IP *mask)
|
|
{
|
|
TOKEN_LIST *t;
|
|
char *ipstr;
|
|
char *subnetstr;
|
|
bool ret = false;
|
|
IP ip2;
|
|
IP mask2;
|
|
// Validate arguments
|
|
if (src == NULL || ip == NULL || mask == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
Zero(&ip2, sizeof(IP));
|
|
Zero(&mask2, sizeof(IP));
|
|
|
|
t = ParseToken(src, "/");
|
|
if (t->NumTokens != 2)
|
|
{
|
|
FreeToken(t);
|
|
return false;
|
|
}
|
|
|
|
ipstr = t->Token[0];
|
|
subnetstr = t->Token[1];
|
|
Trim(ipstr);
|
|
Trim(subnetstr);
|
|
|
|
if (StrToIP(&ip2, ipstr))
|
|
{
|
|
if (StrToIP(&mask2, subnetstr))
|
|
{
|
|
// Compare the kind of the mask part and the IP address part to confirm same
|
|
if (IsIP6(&ip2) && IsIP6(&mask2))
|
|
{
|
|
// Both are IPv6
|
|
ret = true;
|
|
Copy(ip, &ip2, sizeof(IP));
|
|
Copy(mask, &mask2, sizeof(IP));
|
|
}
|
|
else if (IsIP4(&ip2) && IsIP4(&mask2))
|
|
{
|
|
// Both are IPv4
|
|
ret = true;
|
|
Copy(ip, &ip2, sizeof(IP));
|
|
Copy(mask, &mask2, sizeof(IP));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (IsNum(subnetstr))
|
|
{
|
|
UINT i = ToInt(subnetstr);
|
|
// Mask part is a number
|
|
if (IsIP6(&ip2) && i <= 128)
|
|
{
|
|
ret = true;
|
|
Copy(ip, &ip2, sizeof(IP));
|
|
IntToSubnetMask6(mask, i);
|
|
}
|
|
else if (i <= 32)
|
|
{
|
|
ret = true;
|
|
Copy(ip, &ip2, sizeof(IP));
|
|
IntToSubnetMask4(mask, i);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
FreeToken(t);
|
|
|
|
return ret;
|
|
}
|
|
bool ParseIpAndMask4(char *src, UINT *ip, UINT *mask)
|
|
{
|
|
IP ip_ip, ip_mask;
|
|
if (ParseIpAndMask46(src, &ip_ip, &ip_mask) == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (IsIP4(&ip_ip) == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (ip != NULL)
|
|
{
|
|
*ip = IPToUINT(&ip_ip);
|
|
}
|
|
|
|
if (mask != NULL)
|
|
{
|
|
*mask = IPToUINT(&ip_mask);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
bool ParseIpAndMask6(char *src, IP *ip, IP *mask)
|
|
{
|
|
if (ParseIpAndMask46(src, ip, mask) == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (IsIP6(ip) == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
// Check whether the specification of the IPv4 address is correct
|
|
bool IsIpStr4(char *str)
|
|
{
|
|
// Validate arguments
|
|
if (str == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (StrToIP32(str) == 0 && StrCmpi(str, "0.0.0.0") != 0)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
// Check whether the specification of the IPv6 address is correct
|
|
bool IsIpStr6(char *str)
|
|
{
|
|
IP ip;
|
|
// Validate arguments
|
|
if (str == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (StrToIP6(&ip, str) == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
// Convert the string to an IPv6 mask
|
|
bool StrToMask6(IP *mask, char *str)
|
|
{
|
|
// Validate arguments
|
|
if (mask == NULL || str == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (str[0] == '/')
|
|
{
|
|
str++;
|
|
}
|
|
|
|
if (IsNum(str))
|
|
{
|
|
UINT n = ToInt(str);
|
|
|
|
if (n <= 128)
|
|
{
|
|
IntToSubnetMask6(mask, n);
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (StrToIP(mask, str) == false)
|
|
{
|
|
return false;
|
|
}
|
|
else
|
|
{
|
|
return IsIP6(mask);
|
|
}
|
|
}
|
|
}
|
|
bool StrToMask6Addr(IPV6_ADDR *mask, char *str)
|
|
{
|
|
IP ip;
|
|
|
|
if (StrToMask6(&ip, str) == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (IPToIPv6Addr(mask, &ip) == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
// Convert the IPv4 / IPv6 mask to a string
|
|
void MaskToStr(char *str, UINT size, IP *mask)
|
|
{
|
|
MaskToStrEx(str, size, mask, false);
|
|
}
|
|
void MaskToStrEx(char *str, UINT size, IP *mask, bool always_full_address)
|
|
{
|
|
// Validate arguments
|
|
if (str == NULL || mask == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (always_full_address == false && IsSubnetMask(mask))
|
|
{
|
|
ToStr(str, SubnetMaskToInt(mask));
|
|
}
|
|
else
|
|
{
|
|
IPToStr(str, size, mask);
|
|
}
|
|
}
|
|
void MaskToStr32(char *str, UINT size, UINT mask)
|
|
{
|
|
MaskToStr32Ex(str, size, mask, false);
|
|
}
|
|
void MaskToStr32Ex(char *str, UINT size, UINT mask, bool always_full_address)
|
|
{
|
|
IP ip;
|
|
|
|
UINTToIP(&ip, mask);
|
|
|
|
MaskToStrEx(str, size, &ip, always_full_address);
|
|
}
|
|
void Mask6AddrToStrEx(char *str, UINT size, IPV6_ADDR *mask, bool always_full_address)
|
|
{
|
|
IP ip;
|
|
|
|
// Validate arguments
|
|
if (str == NULL || mask == NULL)
|
|
{
|
|
StrCpy(str, size, "");
|
|
return;
|
|
}
|
|
|
|
IPv6AddrToIP(&ip, mask);
|
|
|
|
MaskToStrEx(str, size, &ip, always_full_address);
|
|
}
|
|
void Mask6AddrToStr(char *str, UINT size, IPV6_ADDR *mask)
|
|
{
|
|
Mask6AddrToStrEx(str, size, mask, false);
|
|
}
|
|
|
|
// Disconnecting of the tube
|
|
void TubeDisconnect(TUBE *t)
|
|
{
|
|
// Validate arguments
|
|
if (t == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (t->TubePairData == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Lock(t->TubePairData->Lock);
|
|
{
|
|
t->TubePairData->IsDisconnected = true;
|
|
|
|
Set(t->TubePairData->Event1);
|
|
Set(t->TubePairData->Event2);
|
|
SetSockEvent(t->TubePairData->SockEvent1);
|
|
SetSockEvent(t->TubePairData->SockEvent2);
|
|
}
|
|
Unlock(t->TubePairData->Lock);
|
|
}
|
|
|
|
// Creating a tube pair
|
|
void NewTubePair(TUBE **t1, TUBE **t2, UINT size_of_header)
|
|
{
|
|
TUBEPAIR_DATA *d;
|
|
// Validate arguments
|
|
if (t1 == NULL || t2 == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
*t1 = NewTube(size_of_header);
|
|
*t2 = NewTube(size_of_header);
|
|
|
|
(*t1)->IndexInTubePair = 0;
|
|
(*t2)->IndexInTubePair = 1;
|
|
|
|
d = NewTubePairData();
|
|
AddRef(d->Ref);
|
|
|
|
(*t1)->TubePairData = d;
|
|
(*t2)->TubePairData = d;
|
|
|
|
d->Event1 = (*t1)->Event;
|
|
d->Event2 = (*t2)->Event;
|
|
|
|
AddRef(d->Event1->ref);
|
|
AddRef(d->Event2->ref);
|
|
}
|
|
|
|
// Creating a tube pair data
|
|
TUBEPAIR_DATA *NewTubePairData()
|
|
{
|
|
TUBEPAIR_DATA *d = ZeroMalloc(sizeof(TUBEPAIR_DATA));
|
|
|
|
d->Ref = NewRef();
|
|
|
|
d->Lock = NewLock();
|
|
|
|
return d;
|
|
}
|
|
|
|
// Set the SockEvent to the tube
|
|
void SetTubeSockEvent(TUBE *t, SOCK_EVENT *e)
|
|
{
|
|
// Validate arguments
|
|
if (t == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Lock(t->Lock);
|
|
{
|
|
TUBEPAIR_DATA *d;
|
|
|
|
if (t->SockEvent != e)
|
|
{
|
|
if (t->SockEvent != NULL)
|
|
{
|
|
ReleaseSockEvent(t->SockEvent);
|
|
}
|
|
|
|
if (e != NULL)
|
|
{
|
|
AddRef(e->ref);
|
|
}
|
|
|
|
t->SockEvent = e;
|
|
}
|
|
|
|
d = t->TubePairData;
|
|
|
|
if (d != NULL)
|
|
{
|
|
Lock(d->Lock);
|
|
{
|
|
SOCK_EVENT **sep = (t->IndexInTubePair == 0 ? &d->SockEvent1 : &d->SockEvent2);
|
|
|
|
if (*sep != e)
|
|
{
|
|
if (*sep != NULL)
|
|
{
|
|
ReleaseSockEvent(*sep);
|
|
}
|
|
|
|
if (e != NULL)
|
|
{
|
|
AddRef(e->ref);
|
|
}
|
|
|
|
*sep = e;
|
|
}
|
|
}
|
|
Unlock(d->Lock);
|
|
}
|
|
}
|
|
Unlock(t->Lock);
|
|
}
|
|
|
|
// Release of the tube pair data
|
|
void ReleaseTubePairData(TUBEPAIR_DATA *d)
|
|
{
|
|
// Validate arguments
|
|
if (d == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (Release(d->Ref) == 0)
|
|
{
|
|
CleanupTubePairData(d);
|
|
}
|
|
}
|
|
void CleanupTubePairData(TUBEPAIR_DATA *d)
|
|
{
|
|
// Validate arguments
|
|
if (d == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
ReleaseEvent(d->Event1);
|
|
ReleaseEvent(d->Event2);
|
|
|
|
ReleaseSockEvent(d->SockEvent1);
|
|
ReleaseSockEvent(d->SockEvent2);
|
|
|
|
DeleteLock(d->Lock);
|
|
|
|
Free(d);
|
|
}
|
|
|
|
// Check whether the tube is connected to the opponent still
|
|
bool IsTubeConnected(TUBE *t)
|
|
{
|
|
// Validate arguments
|
|
if (t == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (t->TubePairData == NULL)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
if (t->TubePairData->IsDisconnected)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
// Send the data to the tube
|
|
bool TubeSend(TUBE *t, void *data, UINT size, void *header)
|
|
{
|
|
return TubeSendEx(t, data, size, header, false);
|
|
}
|
|
bool TubeSendEx(TUBE *t, void *data, UINT size, void *header, bool no_flush)
|
|
{
|
|
return TubeSendEx2(t, data, size, header, no_flush, 0);
|
|
}
|
|
bool TubeSendEx2(TUBE *t, void *data, UINT size, void *header, bool no_flush, UINT max_num_in_queue)
|
|
{
|
|
// Validate arguments
|
|
if (t == NULL || data == NULL || size == 0)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (IsTubeConnected(t) == false)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
LockQueue(t->Queue);
|
|
{
|
|
if (max_num_in_queue == 0 || (t->Queue->num_item <= max_num_in_queue))
|
|
{
|
|
InsertQueue(t->Queue, NewTubeData(data, size, header, t->SizeOfHeader));
|
|
}
|
|
else
|
|
{
|
|
no_flush = true;
|
|
}
|
|
}
|
|
UnlockQueue(t->Queue);
|
|
|
|
if (no_flush == false)
|
|
{
|
|
Set(t->Event);
|
|
SetSockEvent(t->SockEvent);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
// Flush the tube
|
|
void TubeFlush(TUBE *t)
|
|
{
|
|
TubeFlushEx(t, false);
|
|
}
|
|
void TubeFlushEx(TUBE *t, bool force)
|
|
{
|
|
// Validate arguments
|
|
if (t == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (IsTubeConnected(t) == false)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (force == false)
|
|
{
|
|
if (t->Queue->num_item == 0)
|
|
{
|
|
return;
|
|
}
|
|
}
|
|
|
|
Set(t->Event);
|
|
SetSockEvent(t->SockEvent);
|
|
}
|
|
|
|
// Receive the data from the tube (asynchronous)
|
|
TUBEDATA *TubeRecvAsync(TUBE *t)
|
|
{
|
|
TUBEDATA *d;
|
|
// Validate arguments
|
|
if (t == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
if (IsTubeConnected(t) == false)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
LockQueue(t->Queue);
|
|
{
|
|
d = GetNext(t->Queue);
|
|
}
|
|
UnlockQueue(t->Queue);
|
|
|
|
return d;
|
|
}
|
|
|
|
// Get the SockEvent associated with the tube
|
|
SOCK_EVENT *GetTubeSockEvent(TUBE *t)
|
|
{
|
|
SOCK_EVENT *e = NULL;
|
|
// Validate arguments
|
|
if (t == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
Lock(t->Lock);
|
|
{
|
|
if (t->SockEvent != NULL)
|
|
{
|
|
AddRef(t->SockEvent->ref);
|
|
|
|
e = t->SockEvent;
|
|
}
|
|
}
|
|
Unlock(t->Lock);
|
|
|
|
return e;
|
|
}
|
|
|
|
// Receive the data from the tube (synchronous)
|
|
TUBEDATA *TubeRecvSync(TUBE *t, UINT timeout)
|
|
{
|
|
UINT64 start_tick, timeout_tick;
|
|
TUBEDATA *d = NULL;
|
|
// Validate arguments
|
|
if (t == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
if (IsTubeConnected(t) == false)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
start_tick = Tick64();
|
|
timeout_tick = start_tick + (UINT64)timeout;
|
|
|
|
while (true)
|
|
{
|
|
UINT64 now = Tick64();
|
|
UINT remain_time;
|
|
SOCK_EVENT *e;
|
|
UINT interval;
|
|
|
|
d = NULL;
|
|
|
|
if (IsTubeConnected(t) == false)
|
|
{
|
|
break;
|
|
}
|
|
|
|
LockQueue(t->Queue);
|
|
{
|
|
d = GetNext(t->Queue);
|
|
}
|
|
UnlockQueue(t->Queue);
|
|
|
|
if (d != NULL)
|
|
{
|
|
break;
|
|
}
|
|
|
|
if (timeout != INFINITE && now >= timeout_tick)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
remain_time = (UINT)(timeout_tick - now);
|
|
|
|
e = GetTubeSockEvent(t);
|
|
|
|
interval = (timeout == INFINITE ? INFINITE : remain_time);
|
|
|
|
if (e == NULL)
|
|
{
|
|
Wait(t->Event, interval);
|
|
}
|
|
else
|
|
{
|
|
WaitSockEvent(e, interval);
|
|
|
|
ReleaseSockEvent(e);
|
|
}
|
|
}
|
|
|
|
return d;
|
|
}
|
|
|
|
// Creating a tube
|
|
TUBE *NewTube(UINT size_of_header)
|
|
{
|
|
TUBE *t = ZeroMalloc(sizeof(TUBE));
|
|
|
|
t->Event = NewEvent();
|
|
t->Queue = NewQueue();
|
|
t->Ref = NewRef();
|
|
t->Lock = NewLock();
|
|
t->SockEvent = NewSockEvent();
|
|
|
|
t->SizeOfHeader = size_of_header;
|
|
|
|
return t;
|
|
}
|
|
|
|
// Release of the tube
|
|
void ReleaseTube(TUBE *t)
|
|
{
|
|
// Validate arguments
|
|
if (t == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (Release(t->Ref) == 0)
|
|
{
|
|
CleanupTube(t);
|
|
}
|
|
}
|
|
void CleanupTube(TUBE *t)
|
|
{
|
|
// Validate arguments
|
|
if (t == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
while (true)
|
|
{
|
|
TUBEDATA *d = GetNext(t->Queue);
|
|
if (d == NULL)
|
|
{
|
|
break;
|
|
}
|
|
|
|
FreeTubeData(d);
|
|
}
|
|
|
|
ReleaseQueue(t->Queue);
|
|
ReleaseEvent(t->Event);
|
|
ReleaseSockEvent(t->SockEvent);
|
|
|
|
ReleaseTubePairData(t->TubePairData);
|
|
|
|
DeleteLock(t->Lock);
|
|
|
|
Free(t);
|
|
}
|
|
|
|
// Creating a tube data
|
|
TUBEDATA *NewTubeData(void *data, UINT size, void *header, UINT header_size)
|
|
{
|
|
TUBEDATA *d;
|
|
// Validate arguments
|
|
if (size == 0 || data == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
d = ZeroMalloc(sizeof(TUBEDATA));
|
|
|
|
d->Data = Clone(data, size);
|
|
d->DataSize = size;
|
|
if (header != NULL)
|
|
{
|
|
d->Header = Clone(header, header_size);
|
|
d->HeaderSize = header_size;
|
|
}
|
|
else
|
|
{
|
|
d->Header = ZeroMalloc(header_size);
|
|
}
|
|
|
|
return d;
|
|
}
|
|
|
|
// Release of the tube data
|
|
void FreeTubeData(TUBEDATA *d)
|
|
{
|
|
// Validate arguments
|
|
if (d == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Free(d->Data);
|
|
Free(d->Header);
|
|
|
|
Free(d);
|
|
}
|
|
|
|
// Release of the IP address list of the host
|
|
void FreeHostIPAddressList(LIST *o)
|
|
{
|
|
UINT i;
|
|
// Validate arguments
|
|
if (o == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < LIST_NUM(o); i++)
|
|
{
|
|
IP *ip = LIST_DATA(o, i);
|
|
|
|
Free(ip);
|
|
}
|
|
|
|
ReleaseList(o);
|
|
}
|
|
|
|
// Get whether the specified IP address is held by this host
|
|
bool IsMyIPAddress(IP *ip)
|
|
{
|
|
LIST *o;
|
|
UINT i;
|
|
bool ret = false;
|
|
// Validate arguments
|
|
if (ip == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
o = GetHostIPAddressList();
|
|
|
|
for (i = 0; i < LIST_NUM(o); i++)
|
|
{
|
|
IP *a = LIST_DATA(o, i);
|
|
|
|
if (CmpIpAddr(ip, a) == 0)
|
|
{
|
|
ret = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
FreeHostIPAddressList(o);
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Add the IP address to the list
|
|
void AddHostIPAddressToList(LIST *o, IP *ip)
|
|
{
|
|
IP *r;
|
|
// Validate arguments
|
|
if (o == NULL || ip == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
r = Search(o, ip);
|
|
if (r != NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Insert(o, Clone(ip, sizeof(IP)));
|
|
}
|
|
|
|
// Comparison of the IP address list items
|
|
int CmpIpAddressList(void *p1, void *p2)
|
|
{
|
|
IP *ip1, *ip2;
|
|
UINT r;
|
|
// Validate arguments
|
|
if (p1 == NULL || p2 == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
ip1 = *(IP **)p1;
|
|
ip2 = *(IP **)p2;
|
|
if (ip1 == NULL || ip2 == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
// IPv4 < IPv6
|
|
r = COMPARE_RET(IsIP6(ip1), IsIP6(ip2));
|
|
if (r != 0)
|
|
{
|
|
return r;
|
|
}
|
|
|
|
// any > specified IP
|
|
if (IsZeroIP(ip1) && IsZeroIP(ip2) == false)
|
|
{
|
|
return 1;
|
|
}
|
|
if (IsZeroIP(ip1) == false && IsZeroIP(ip2))
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
// local > others
|
|
if (IsLocalHostIP(ip1) && IsLocalHostIP(ip2) == false)
|
|
{
|
|
return 1;
|
|
}
|
|
if (IsLocalHostIP(ip1) == false && IsLocalHostIP(ip2))
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
// ip address
|
|
r = CmpIpAddr(ip1, ip2);
|
|
if (r != 0)
|
|
{
|
|
return r;
|
|
}
|
|
|
|
// interface index
|
|
if (IsIP6(ip1))
|
|
{
|
|
r = COMPARE_RET(ip1->ipv6_scope_id, ip2->ipv6_scope_id);
|
|
}
|
|
else
|
|
{
|
|
r = 0;
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
// Get the IP address list hash of the host
|
|
UINT64 GetHostIPAddressListHash()
|
|
{
|
|
UINT i;
|
|
LIST *o;
|
|
BUF *buf = NewBuf();
|
|
UCHAR hash[SHA1_SIZE];
|
|
UINT64 ret = 0;
|
|
|
|
o = GetHostIPAddressList();
|
|
|
|
if (o != NULL)
|
|
{
|
|
for (i = 0; i < LIST_NUM(o); i++)
|
|
{
|
|
IP *ip = LIST_DATA(o, i);
|
|
char tmp[128];
|
|
|
|
Zero(tmp, sizeof(tmp));
|
|
IPToStr(tmp, sizeof(tmp), ip);
|
|
|
|
WriteBufStr(buf, tmp);
|
|
}
|
|
|
|
FreeHostIPAddressList(o);
|
|
}
|
|
|
|
WriteBufStr(buf, "test");
|
|
|
|
Sha1(hash, buf->Buf, buf->Size);
|
|
|
|
FreeBuf(buf);
|
|
|
|
Copy(&ret, hash, sizeof(UINT64));
|
|
|
|
ret = Endian64(ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Get the IP address list of the host (using cache)
|
|
LIST *GetHostIPAddressList()
|
|
{
|
|
LIST *o = NULL;
|
|
if (host_ip_address_list_cache_lock == NULL)
|
|
{
|
|
return GetHostIPAddressListInternal();
|
|
}
|
|
|
|
Lock(host_ip_address_list_cache_lock);
|
|
{
|
|
UINT64 now = Tick64();
|
|
|
|
if (host_ip_address_list_cache_last == 0 ||
|
|
((host_ip_address_list_cache_last + (UINT64)HOST_IP_ADDRESS_LIST_CACHE) < now) ||
|
|
host_ip_address_cache == NULL)
|
|
{
|
|
if (host_ip_address_cache != NULL)
|
|
{
|
|
FreeHostIPAddressList(host_ip_address_cache);
|
|
}
|
|
|
|
host_ip_address_cache = GetHostIPAddressListInternal();
|
|
|
|
host_ip_address_list_cache_last = now;
|
|
}
|
|
|
|
o = CloneIPAddressList(host_ip_address_cache);
|
|
}
|
|
Unlock(host_ip_address_list_cache_lock);
|
|
|
|
if (o == NULL)
|
|
{
|
|
o = GetHostIPAddressListInternal();
|
|
}
|
|
|
|
return o;
|
|
}
|
|
|
|
// Copy of the IP address list
|
|
LIST *CloneIPAddressList(LIST *o)
|
|
{
|
|
LIST *ret;
|
|
UINT i;
|
|
// Validate arguments
|
|
if (o == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
ret = NewListFast(CmpIpAddressList);
|
|
|
|
for (i = 0; i < LIST_NUM(o); i++)
|
|
{
|
|
IP *ip = LIST_DATA(o, i);
|
|
|
|
if (ip != NULL)
|
|
{
|
|
ip = Clone(ip, sizeof(IP));
|
|
|
|
Add(ret, ip);
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Get an IP address list of the host
|
|
LIST *GetHostIPAddressListInternal()
|
|
{
|
|
char hostname[MAX_SIZE];
|
|
LIST *o;
|
|
IP any6, any4;
|
|
IP local6, local4;
|
|
bool is_v6_supported = IsIPv6Supported();
|
|
|
|
GetLocalHostIP4(&local4);
|
|
GetLocalHostIP6(&local6);
|
|
|
|
ZeroIP4(&any4);
|
|
ZeroIP6(&any6);
|
|
|
|
Zero(hostname, sizeof(hostname));
|
|
|
|
gethostname(hostname, sizeof(hostname));
|
|
|
|
o = NewListFast(CmpIpAddressList);
|
|
|
|
// any
|
|
AddHostIPAddressToList(o, &any4);
|
|
if (is_v6_supported)
|
|
{
|
|
AddHostIPAddressToList(o, &any6);
|
|
}
|
|
|
|
// localhost
|
|
AddHostIPAddressToList(o, &local4);
|
|
if (is_v6_supported)
|
|
{
|
|
AddHostIPAddressToList(o, &local6);
|
|
}
|
|
|
|
#ifndef MAYAQUA_SUPPORTS_GETIFADDRS
|
|
// IPv4
|
|
if (true)
|
|
{
|
|
struct sockaddr_in in;
|
|
struct in_addr addr;
|
|
struct addrinfo hint;
|
|
struct addrinfo *info;
|
|
|
|
Zero(&hint, sizeof(hint));
|
|
hint.ai_family = AF_INET;
|
|
hint.ai_socktype = SOCK_DGRAM;
|
|
hint.ai_protocol = IPPROTO_UDP;
|
|
info = NULL;
|
|
|
|
if (getaddrinfo(hostname, NULL, &hint, &info) == 0)
|
|
{
|
|
if (info->ai_family == AF_INET)
|
|
{
|
|
struct addrinfo *current = info;
|
|
while (current != NULL)
|
|
{
|
|
IP ip;
|
|
|
|
Copy(&in, current->ai_addr, sizeof(in));
|
|
Copy(&addr, &in.sin_addr, sizeof(addr));
|
|
|
|
InAddrToIP(&ip, &addr);
|
|
AddHostIPAddressToList(o, &ip);
|
|
|
|
current = current->ai_next;
|
|
}
|
|
}
|
|
|
|
freeaddrinfo(info);
|
|
}
|
|
}
|
|
|
|
#ifndef UNIX_LINUX
|
|
// IPv6
|
|
if (is_v6_supported)
|
|
{
|
|
struct sockaddr_in6 in;
|
|
struct in6_addr addr;
|
|
struct addrinfo hint;
|
|
struct addrinfo *info;
|
|
|
|
Zero(&hint, sizeof(hint));
|
|
hint.ai_family = AF_INET6;
|
|
hint.ai_socktype = SOCK_DGRAM;
|
|
hint.ai_protocol = IPPROTO_UDP;
|
|
info = NULL;
|
|
|
|
if (getaddrinfo(hostname, NULL, &hint, &info) == 0)
|
|
{
|
|
if (info->ai_family == AF_INET6)
|
|
{
|
|
struct addrinfo *current = info;
|
|
while (current != NULL)
|
|
{
|
|
IP ip;
|
|
|
|
Copy(&in, current->ai_addr, sizeof(in));
|
|
Copy(&addr, &in.sin6_addr, sizeof(addr));
|
|
|
|
InAddrToIP6(&ip, &addr);
|
|
ip.ipv6_scope_id = in.sin6_scope_id;
|
|
|
|
AddHostIPAddressToList(o, &ip);
|
|
|
|
current = current->ai_next;
|
|
}
|
|
}
|
|
|
|
freeaddrinfo(info);
|
|
}
|
|
}
|
|
#endif // UNIX_LINUX
|
|
#endif // MAYAQUA_SUPPORTS_GETIFADDRS
|
|
|
|
#ifdef MAYAQUA_SUPPORTS_GETIFADDRS
|
|
// If the getifaddrs is available, use this
|
|
if (true)
|
|
{
|
|
struct ifaddrs *aa = NULL;
|
|
|
|
if (getifaddrs(&aa) == 0)
|
|
{
|
|
struct ifaddrs *a = aa;
|
|
|
|
while (a != NULL)
|
|
{
|
|
if (a->ifa_addr != NULL)
|
|
{
|
|
struct sockaddr *addr = a->ifa_addr;
|
|
|
|
if (addr->sa_family == AF_INET)
|
|
{
|
|
IP ip;
|
|
struct sockaddr_in *d = (struct sockaddr_in *)addr;
|
|
struct in_addr *addr = &d->sin_addr;
|
|
|
|
InAddrToIP(&ip, addr);
|
|
|
|
AddHostIPAddressToList(o, &ip);
|
|
}
|
|
else if (addr->sa_family == AF_INET6)
|
|
{
|
|
IP ip;
|
|
struct sockaddr_in6 *d = (struct sockaddr_in6 *)addr;
|
|
UINT scope_id = d->sin6_scope_id;
|
|
struct in6_addr *addr = &d->sin6_addr;
|
|
|
|
InAddrToIP6(&ip, addr);
|
|
ip.ipv6_scope_id = scope_id;
|
|
|
|
AddHostIPAddressToList(o, &ip);
|
|
}
|
|
}
|
|
|
|
a = a->ifa_next;
|
|
}
|
|
|
|
freeifaddrs(aa);
|
|
}
|
|
}
|
|
#endif // MAYAQUA_SUPPORTS_GETIFADDRS
|
|
|
|
return o;
|
|
}
|
|
|
|
// Get whether the UDP listener opens the specified port
|
|
bool IsUdpPortOpened(UDPLISTENER *u, IP *server_ip, UINT port)
|
|
{
|
|
UINT i;
|
|
// Validate arguments
|
|
if (u == NULL || port == 0)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (server_ip != NULL)
|
|
{
|
|
for (i = 0; i < LIST_NUM(u->SockList); i++)
|
|
{
|
|
UDPLISTENER_SOCK *us = LIST_DATA(u->SockList, i);
|
|
|
|
if (us->Sock != NULL && us->HasError == false)
|
|
{
|
|
if (us->Port == port)
|
|
{
|
|
if (CmpIpAddr(server_ip, &us->IpAddress) == 0)
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < LIST_NUM(u->SockList); i++)
|
|
{
|
|
UDPLISTENER_SOCK *us = LIST_DATA(u->SockList, i);
|
|
|
|
if (us->Sock != NULL && us->HasError == false)
|
|
{
|
|
if (us->Port == port)
|
|
{
|
|
if (IsZeroIP(&us->IpAddress))
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
// IP address acquisition thread
|
|
void QueryIpThreadMain(THREAD *thread, void *param)
|
|
{
|
|
QUERYIPTHREAD *t = (QUERYIPTHREAD *)param;
|
|
// Validate arguments
|
|
if (thread == NULL || param == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
while (t->Halt == false)
|
|
{
|
|
UINT next_wait_time = 0;
|
|
IP ip;
|
|
bool ok = false;
|
|
|
|
if (GetIP4Ex(&ip, t->Hostname, 5000, &t->Halt))
|
|
{
|
|
if (IsZeroIP(&ip) == false)
|
|
{
|
|
Lock(t->Lock);
|
|
{
|
|
Copy(&t->Ip, &ip, sizeof(IP));
|
|
}
|
|
Unlock(t->Lock);
|
|
|
|
ok = true;
|
|
}
|
|
}
|
|
|
|
if (ok == false)
|
|
{
|
|
next_wait_time = t->IntervalLastNg;
|
|
}
|
|
else
|
|
{
|
|
next_wait_time = t->IntervalLastOk;
|
|
}
|
|
|
|
if (t->Halt)
|
|
{
|
|
break;
|
|
}
|
|
|
|
Wait(t->HaltEvent, next_wait_time);
|
|
}
|
|
}
|
|
|
|
// Creating an IP address acquisition thread
|
|
QUERYIPTHREAD *NewQueryIpThread(char *hostname, UINT interval_last_ok, UINT interval_last_ng)
|
|
{
|
|
QUERYIPTHREAD *t;
|
|
|
|
t = ZeroMalloc(sizeof(QUERYIPTHREAD));
|
|
|
|
t->HaltEvent = NewEvent();
|
|
t->Lock = NewLock();
|
|
StrCpy(t->Hostname, sizeof(t->Hostname), hostname);
|
|
t->IntervalLastOk = interval_last_ok;
|
|
t->IntervalLastNg = interval_last_ng;
|
|
|
|
t->Thread = NewThread(QueryIpThreadMain, t);
|
|
|
|
return t;
|
|
}
|
|
|
|
// Get the results of the IP address acquisition thread
|
|
bool GetQueryIpThreadResult(QUERYIPTHREAD *t, IP *ip)
|
|
{
|
|
bool ret = false;
|
|
Zero(ip, sizeof(IP));
|
|
// Validate arguments
|
|
if (t == NULL || ip == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
Lock(t->Lock);
|
|
|
|
if (IsZero(&t->Ip, sizeof(IP)))
|
|
{
|
|
ret = false;
|
|
}
|
|
else
|
|
{
|
|
Copy(ip, &t->Ip, sizeof(IP));
|
|
}
|
|
|
|
Unlock(t->Lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Release of the IP address acquisition thread
|
|
void FreeQueryIpThread(QUERYIPTHREAD *t)
|
|
{
|
|
// Validate arguments
|
|
if (t == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
t->Halt = true;
|
|
Set(t->HaltEvent);
|
|
|
|
WaitThread(t->Thread, INFINITE);
|
|
ReleaseThread(t->Thread);
|
|
|
|
ReleaseEvent(t->HaltEvent);
|
|
|
|
DeleteLock(t->Lock);
|
|
|
|
Free(t);
|
|
}
|
|
|
|
// UDP listener thread
|
|
void UdpListenerThread(THREAD *thread, void *param)
|
|
{
|
|
UDPLISTENER *u = (UDPLISTENER *)param;
|
|
UINT i, j, k;
|
|
UINT buf_size = 65536;
|
|
void *buf;
|
|
bool cont_flag;
|
|
BUF *ip_list_buf = NewBuf();
|
|
// Validate arguments
|
|
if (thread == NULL || param == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
buf = Malloc(buf_size);
|
|
|
|
// Initializing the socket list
|
|
u->SockList = NewList(NULL);
|
|
|
|
u->LastCheckTick = 0;
|
|
|
|
// u->PollMyIpAndPort = true;
|
|
|
|
// Main loop
|
|
while (u->Halt == false)
|
|
{
|
|
LIST *recv_list;
|
|
UINT64 now = Tick64();
|
|
UINT interval;
|
|
bool stage_changed = false;
|
|
IP nat_t_ip;
|
|
|
|
Zero(&nat_t_ip, sizeof(nat_t_ip));
|
|
|
|
|
|
if (u->LastCheckTick == 0 || (now >= (u->LastCheckTick + UDPLISTENER_CHECK_INTERVAL)))
|
|
{
|
|
LIST *iplist;
|
|
LIST *del_us_list = NewListFast(NULL);
|
|
BUF *ip_list_buf_new = NewBuf();
|
|
|
|
u->LastCheckTick = now;
|
|
|
|
// Obtain an IP address list
|
|
iplist = GetHostIPAddressList();
|
|
|
|
LockList(u->PortList);
|
|
{
|
|
for (k = 0; k < LIST_NUM(u->SockList); k++)
|
|
{
|
|
UDPLISTENER_SOCK *us = LIST_DATA(u->SockList, k);
|
|
|
|
us->Mark = false;
|
|
}
|
|
|
|
// If the combination of the IP address and the port number doesn't exist in the list, add it to the list
|
|
for (i = 0; i < LIST_NUM(iplist); i++)
|
|
{
|
|
IP *ip = LIST_DATA(iplist, i);
|
|
|
|
if (CmpIpAddr(ip, &u->ListenIP) != 0)
|
|
{
|
|
continue;
|
|
}
|
|
|
|
WriteBuf(ip_list_buf_new, ip, sizeof(IP));
|
|
|
|
for (j = 0; j < LIST_NUM(u->PortList); j++)
|
|
{
|
|
UINT k;
|
|
UINT *port = LIST_DATA(u->PortList, j);
|
|
bool existing = false;
|
|
|
|
if (IsZeroIP(ip) && (IS_SPECIAL_PORT(*port)))
|
|
{
|
|
continue;
|
|
}
|
|
|
|
|
|
for (k = 0; k < LIST_NUM(u->SockList); k++)
|
|
{
|
|
UDPLISTENER_SOCK *us = LIST_DATA(u->SockList, k);
|
|
|
|
if (CmpIpAddr(&us->IpAddress, ip) == 0 && us->Port == *port)
|
|
{
|
|
existing = true;
|
|
|
|
us->Mark = true;
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (existing == false)
|
|
{
|
|
UDPLISTENER_SOCK *us = ZeroMalloc(sizeof(UDPLISTENER_SOCK));
|
|
|
|
Copy(&us->IpAddress, ip, sizeof(IP));
|
|
us->Port = *port;
|
|
|
|
us->Mark = true;
|
|
|
|
Add(u->SockList, us);
|
|
}
|
|
}
|
|
}
|
|
|
|
// If any errors suspected or the combination of IP address and port number
|
|
// has been regarded to delete already, delete it
|
|
for (k = 0; k < LIST_NUM(u->SockList); k++)
|
|
{
|
|
UDPLISTENER_SOCK *us = LIST_DATA(u->SockList, k);
|
|
|
|
if (us->Mark == false || us->HasError)
|
|
{
|
|
Debug("mark=%u error=%u\n", us->Mark, us->HasError);
|
|
Add(del_us_list, us);
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < LIST_NUM(del_us_list); i++)
|
|
{
|
|
UDPLISTENER_SOCK *us = LIST_DATA(del_us_list, i);
|
|
|
|
char ipstr[MAX_SIZE];
|
|
|
|
IPToStr(ipstr, sizeof(ipstr), &us->IpAddress);
|
|
Debug("Closed UDP Port %u at %s.\n", us->Port, ipstr);
|
|
|
|
Delete(u->SockList, us);
|
|
|
|
if (us->Sock != NULL)
|
|
{
|
|
Disconnect(us->Sock);
|
|
ReleaseSock(us->Sock);
|
|
}
|
|
|
|
Free(us);
|
|
}
|
|
}
|
|
UnlockList(u->PortList);
|
|
|
|
// Open the UDP sockets which is not opend yet
|
|
for (k = 0; k < LIST_NUM(u->SockList); k++)
|
|
{
|
|
UDPLISTENER_SOCK *us = LIST_DATA(u->SockList, k);
|
|
|
|
if (us->Sock == NULL)
|
|
{
|
|
char ipstr[MAX_SIZE];
|
|
|
|
IPToStr(ipstr, sizeof(ipstr), &us->IpAddress);
|
|
|
|
if (us->ErrorDebugDisplayed == false)
|
|
{
|
|
Debug("Opening UDP Port %u at %s ...", us->Port, ipstr);
|
|
}
|
|
|
|
us->Sock = NewUDPEx2(us->Port, IsIP6(&us->IpAddress), &us->IpAddress);
|
|
|
|
if (us->Sock != NULL)
|
|
{
|
|
if (us->ErrorDebugDisplayed == false)
|
|
{
|
|
Debug("Ok.\n");
|
|
}
|
|
else
|
|
{
|
|
Debug("Opening UDP Port %u at %s ...", us->Port, ipstr);
|
|
Debug("Ok.\n");
|
|
}
|
|
JoinSockToSockEvent(us->Sock, u->Event);
|
|
|
|
us->ErrorDebugDisplayed = false;
|
|
}
|
|
else
|
|
{
|
|
if (us->ErrorDebugDisplayed == false)
|
|
{
|
|
Debug("Error.\n");
|
|
}
|
|
|
|
us->ErrorDebugDisplayed = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
FreeHostIPAddressList(iplist);
|
|
|
|
ReleaseList(del_us_list);
|
|
|
|
if (CompareBuf(ip_list_buf, ip_list_buf_new) == false)
|
|
{
|
|
u->HostIPAddressListChanged = true;
|
|
}
|
|
|
|
FreeBuf(ip_list_buf);
|
|
ip_list_buf = ip_list_buf_new;
|
|
}
|
|
|
|
LABEL_RESTART:
|
|
|
|
stage_changed = false;
|
|
|
|
recv_list = NewListFast(NULL);
|
|
|
|
if (u->PollMyIpAndPort)
|
|
{
|
|
// Create a thread to get a NAT-T IP address if necessary
|
|
if (u->GetNatTIpThread == NULL)
|
|
{
|
|
char natt_hostname[MAX_SIZE];
|
|
RUDPGetRegisterHostNameByIP(natt_hostname, sizeof(natt_hostname), NULL);
|
|
u->GetNatTIpThread = NewQueryIpThread(natt_hostname, QUERYIPTHREAD_INTERVAL_LAST_OK, QUERYIPTHREAD_INTERVAL_LAST_NG);
|
|
GetQueryIpThreadResult(u->GetNatTIpThread, &nat_t_ip);
|
|
}
|
|
}
|
|
|
|
// Receive the data that is arriving at the socket
|
|
for (k = 0; k < LIST_NUM(u->SockList); k++)
|
|
{
|
|
UDPLISTENER_SOCK *us = LIST_DATA(u->SockList, k);
|
|
|
|
if (us->Sock != NULL)
|
|
{
|
|
UINT num_ignore_errors = 0;
|
|
|
|
if (u->PollMyIpAndPort && IsIP4(&us->IpAddress))
|
|
{
|
|
if (us->NextMyIpAndPortPollTick == 0 || us->NextMyIpAndPortPollTick <= now)
|
|
{
|
|
// Examine the self IP address and the self port number by using NAT-T server
|
|
us->NextMyIpAndPortPollTick = now + (UINT64)GenRandInterval(UDP_NAT_T_NAT_STATUS_CHECK_INTERVAL_MIN, UDP_NAT_T_NAT_STATUS_CHECK_INTERVAL_MAX);
|
|
|
|
if (IsZeroIP(&nat_t_ip) == false
|
|
)
|
|
{
|
|
UCHAR c = 'A';
|
|
|
|
SendTo(us->Sock, &nat_t_ip, UDP_NAT_T_PORT, &c, 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
while (true)
|
|
{
|
|
IP src_addr;
|
|
UINT src_port;
|
|
UDPPACKET *p;
|
|
|
|
UINT size = RecvFrom(us->Sock, &src_addr, &src_port, buf, buf_size);
|
|
if (size == 0)
|
|
{
|
|
// Socket failure
|
|
if (us->Sock->IgnoreRecvErr == false)
|
|
{
|
|
LABEL_FATAL_ERROR:
|
|
Debug("RecvFrom has Error.\n");
|
|
us->HasError = true;
|
|
}
|
|
else
|
|
{
|
|
if ((num_ignore_errors++) >= MAX_NUM_IGNORE_ERRORS)
|
|
{
|
|
goto LABEL_FATAL_ERROR;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
else if (size == SOCK_LATER)
|
|
{
|
|
// No packet
|
|
break;
|
|
}
|
|
//Debug("UDP %u\n", size);
|
|
|
|
if (src_port == UDP_NAT_T_PORT && CmpIpAddr(&src_addr, &nat_t_ip) == 0)
|
|
{
|
|
// Receive a packet in which the IP address and the port number are written from the NAT-T server
|
|
if (size >= 8)
|
|
{
|
|
IP my_ip;
|
|
UINT my_port;
|
|
|
|
if (RUDPParseIPAndPortStr(buf, size, &my_ip, &my_port))
|
|
{
|
|
Copy(&us->PublicIpAddress, &my_ip, sizeof(IP));
|
|
us->PublicPort = my_port;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Receive a regular packet
|
|
p = NewUdpPacket(&src_addr, src_port, &us->Sock->LocalIP, us->Sock->LocalPort,
|
|
Clone(buf, size), size);
|
|
|
|
if (p->SrcPort == MAKE_SPECIAL_PORT(52))
|
|
{
|
|
p->SrcPort = p->DestPort = MAKE_SPECIAL_PORT(50);
|
|
}
|
|
|
|
p->Type = u->PacketType;
|
|
|
|
Add(recv_list, p);
|
|
}
|
|
|
|
stage_changed = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Pass the received packet to the procedure
|
|
u->RecvProc(u, recv_list);
|
|
|
|
// Release the packet
|
|
for (i = 0; i < LIST_NUM(recv_list); i++)
|
|
{
|
|
UDPPACKET *p = LIST_DATA(recv_list, i);
|
|
|
|
FreeUdpPacket(p);
|
|
}
|
|
|
|
ReleaseList(recv_list);
|
|
|
|
cont_flag = true;
|
|
|
|
do
|
|
{
|
|
// When there are packets to be transmitted, transmit it
|
|
LockList(u->SendPacketList);
|
|
{
|
|
UDPLISTENER_SOCK *last_us = NULL;
|
|
IP last_src_ip;
|
|
UINT last_src_port;
|
|
|
|
Zero(&last_src_ip, sizeof(IP));
|
|
last_src_port = 0;
|
|
|
|
for (i = 0; i < LIST_NUM(u->SendPacketList); i++)
|
|
{
|
|
UDPPACKET *p = LIST_DATA(u->SendPacketList, i);
|
|
UDPLISTENER_SOCK *us;
|
|
|
|
if (last_us != NULL && last_src_port == p->SrcPort && CmpIpAddr(&last_src_ip, &p->SrcIP) == 0)
|
|
{
|
|
us = last_us;
|
|
}
|
|
else
|
|
{
|
|
// Search for a good interface for the transmission
|
|
us = DetermineUdpSocketForSending(u, p);
|
|
|
|
if (us != NULL)
|
|
{
|
|
last_us = us;
|
|
last_src_port = p->SrcPort;
|
|
Copy(&last_src_ip, &p->SrcIP, sizeof(IP));
|
|
}
|
|
}
|
|
|
|
if (us != NULL)
|
|
{
|
|
// Send
|
|
UINT ret = SendTo(us->Sock, &p->DstIP, p->DestPort, p->Data, p->Size);
|
|
|
|
if (ret == 0)
|
|
{
|
|
if (us->Sock->IgnoreSendErr == false)
|
|
{
|
|
// Socket failure
|
|
Debug("SendTo has Error.\n");
|
|
us->HasError = true;
|
|
last_us = NULL;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (ret != SOCK_LATER)
|
|
{
|
|
stage_changed = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
FreeUdpPacket(p);
|
|
}
|
|
DeleteAll(u->SendPacketList);
|
|
}
|
|
UnlockList(u->SendPacketList);
|
|
|
|
if (LIST_NUM(u->SendPacketList) == 0)
|
|
{
|
|
cont_flag = false;
|
|
}
|
|
}
|
|
while (cont_flag);
|
|
|
|
if (stage_changed && u->Halt == false)
|
|
{
|
|
goto LABEL_RESTART;
|
|
}
|
|
|
|
// Timing adjustment
|
|
interval = GetNextIntervalForInterrupt(u->Interrupts);
|
|
|
|
if (interval == INFINITE)
|
|
{
|
|
interval = UDPLISTENER_WAIT_INTERVAL;
|
|
}
|
|
else
|
|
{
|
|
interval = MIN(UDPLISTENER_WAIT_INTERVAL, interval);
|
|
}
|
|
|
|
if (interval >= 1)
|
|
{
|
|
WaitSockEvent(u->Event, interval);
|
|
}
|
|
}
|
|
|
|
if (u->GetNatTIpThread != NULL)
|
|
{
|
|
FreeQueryIpThread(u->GetNatTIpThread);
|
|
}
|
|
|
|
// Release of the socket list
|
|
for (i = 0; i < LIST_NUM(u->SockList); i++)
|
|
{
|
|
UDPLISTENER_SOCK *us = (UDPLISTENER_SOCK *)LIST_DATA(u->SockList, i);
|
|
|
|
Disconnect(us->Sock);
|
|
ReleaseSock(us->Sock);
|
|
|
|
Free(us);
|
|
}
|
|
ReleaseList(u->SockList);
|
|
|
|
FreeBuf(ip_list_buf);
|
|
|
|
Free(buf);
|
|
}
|
|
|
|
// Select the best UDP socket to be used for transmission
|
|
UDPLISTENER_SOCK *DetermineUdpSocketForSending(UDPLISTENER *u, UDPPACKET *p)
|
|
{
|
|
UINT i;
|
|
// Validate arguments
|
|
if (u == NULL || p == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
for (i = 0; i < LIST_NUM(u->SockList); i++)
|
|
{
|
|
UDPLISTENER_SOCK *us = LIST_DATA(u->SockList, i);
|
|
|
|
if (us->Sock != NULL && us->HasError == false)
|
|
{
|
|
if (us->Port == p->SrcPort)
|
|
{
|
|
if (CmpIpAddr(&us->IpAddress, &p->SrcIP) == 0)
|
|
{
|
|
return us;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < LIST_NUM(u->SockList); i++)
|
|
{
|
|
UDPLISTENER_SOCK *us = LIST_DATA(u->SockList, i);
|
|
|
|
if (us->Sock != NULL && us->HasError == false)
|
|
{
|
|
if (us->Port == p->SrcPort)
|
|
{
|
|
if (IsZeroIP(&us->IpAddress))
|
|
{
|
|
if ((IsIP4(&p->DstIP) && IsIP4(&us->IpAddress)) ||
|
|
(IsIP6(&p->DstIP) && IsIP6(&us->IpAddress)))
|
|
{
|
|
return us;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
void FreeTcpRawData(TCP_RAW_DATA *trd)
|
|
{
|
|
// Validate arguments
|
|
if (trd == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
ReleaseFifo(trd->Data);
|
|
Free(trd);
|
|
}
|
|
|
|
TCP_RAW_DATA *NewTcpRawData(IP *src_ip, UINT src_port, IP *dst_ip, UINT dst_port)
|
|
{
|
|
TCP_RAW_DATA *trd;
|
|
// Validate arguments
|
|
if (dst_ip == NULL || dst_port == 0)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
trd = ZeroMalloc(sizeof(TCP_RAW_DATA));
|
|
|
|
Copy(&trd->SrcIP, src_ip, sizeof(IP));
|
|
trd->SrcPort = src_port;
|
|
|
|
Copy(&trd->DstIP, dst_ip, sizeof(IP));
|
|
trd->DstPort = dst_port;
|
|
|
|
trd->Data = NewFifoFast();
|
|
|
|
return trd;
|
|
}
|
|
|
|
// Release of the UDP packet
|
|
void FreeUdpPacket(UDPPACKET *p)
|
|
{
|
|
// Validate arguments
|
|
if (p == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Free(p->Data);
|
|
Free(p);
|
|
}
|
|
|
|
// Create a new UDP packet
|
|
UDPPACKET *NewUdpPacket(IP *src_ip, UINT src_port, IP *dst_ip, UINT dst_port, void *data, UINT size)
|
|
{
|
|
UDPPACKET *p;
|
|
// Validate arguments
|
|
if (data == NULL || size == 0 || dst_ip == NULL || dst_port == 0)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
p = ZeroMalloc(sizeof(UDPPACKET));
|
|
|
|
p->Data = data;
|
|
p->Size = size;
|
|
|
|
Copy(&p->SrcIP, src_ip, sizeof(IP));
|
|
p->SrcPort = src_port;
|
|
|
|
Copy(&p->DstIP, dst_ip, sizeof(IP));
|
|
p->DestPort = dst_port;
|
|
|
|
return p;
|
|
}
|
|
|
|
// Transmit the packets via UDP Listener
|
|
void UdpListenerSendPackets(UDPLISTENER *u, LIST *packet_list)
|
|
{
|
|
UINT num = 0;
|
|
// Validate arguments
|
|
if (u == NULL || packet_list == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
LockList(u->SendPacketList);
|
|
{
|
|
UINT i;
|
|
|
|
num = LIST_NUM(packet_list);
|
|
|
|
for (i = 0; i < LIST_NUM(packet_list); i++)
|
|
{
|
|
UDPPACKET *p = LIST_DATA(packet_list, i);
|
|
|
|
Add(u->SendPacketList, p);
|
|
}
|
|
}
|
|
UnlockList(u->SendPacketList);
|
|
|
|
if (num >= 1)
|
|
{
|
|
SetSockEvent(u->Event);
|
|
}
|
|
}
|
|
|
|
// Creating a UDP listener
|
|
UDPLISTENER *NewUdpListener(UDPLISTENER_RECV_PROC *recv_proc, void *param, IP *listen_ip)
|
|
{
|
|
return NewUdpListenerEx(recv_proc, param, listen_ip, INFINITE);
|
|
}
|
|
|
|
UDPLISTENER *NewUdpListenerEx(UDPLISTENER_RECV_PROC *recv_proc, void *param, IP *listen_ip, UINT packet_type)
|
|
{
|
|
UDPLISTENER *u;
|
|
// Validate arguments
|
|
if (recv_proc == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
u = ZeroMalloc(sizeof(UDPLISTENER));
|
|
|
|
u->Param = param;
|
|
u->PacketType = packet_type;
|
|
|
|
u->PortList = NewList(NULL);
|
|
u->Event = NewSockEvent();
|
|
|
|
if (listen_ip)
|
|
{
|
|
Copy(&u->ListenIP, listen_ip, sizeof(IP));
|
|
}
|
|
|
|
u->RecvProc = recv_proc;
|
|
u->SendPacketList = NewList(NULL);
|
|
|
|
u->Interrupts = NewInterruptManager();
|
|
|
|
u->Thread = NewThread(UdpListenerThread, u);
|
|
|
|
return u;
|
|
}
|
|
|
|
// Stop the UDP listener
|
|
void StopUdpListener(UDPLISTENER *u)
|
|
{
|
|
if (u == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
u->Halt = true;
|
|
SetSockEvent(u->Event);
|
|
WaitThread(u->Thread, INFINITE);
|
|
}
|
|
|
|
// Release the UDP listener
|
|
void FreeUdpListener(UDPLISTENER *u)
|
|
{
|
|
UINT i;
|
|
// Validate arguments
|
|
if (u == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
StopUdpListener(u);
|
|
|
|
ReleaseThread(u->Thread);
|
|
ReleaseSockEvent(u->Event);
|
|
|
|
ReleaseIntList(u->PortList);
|
|
|
|
for (i = 0; i < LIST_NUM(u->SendPacketList); i++)
|
|
{
|
|
UDPPACKET *p = LIST_DATA(u->SendPacketList, i);
|
|
|
|
FreeUdpPacket(p);
|
|
}
|
|
|
|
ReleaseList(u->SendPacketList);
|
|
|
|
FreeInterruptManager(u->Interrupts);
|
|
|
|
Free(u);
|
|
}
|
|
|
|
// Add the UDP port
|
|
void AddPortToUdpListener(UDPLISTENER *u, UINT port)
|
|
{
|
|
// Validate arguments
|
|
if (u == NULL || port == 0)
|
|
{
|
|
return;
|
|
}
|
|
|
|
LockList(u->PortList);
|
|
{
|
|
AddIntDistinct(u->PortList, port);
|
|
}
|
|
UnlockList(u->PortList);
|
|
|
|
SetSockEvent(u->Event);
|
|
}
|
|
|
|
// Delete all the UDP ports
|
|
void DeleteAllPortFromUdpListener(UDPLISTENER *u)
|
|
{
|
|
// Validate arguments
|
|
if (u == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
LockList(u->PortList);
|
|
{
|
|
UINT num_ports = LIST_NUM(u->PortList);
|
|
UINT *ports = ZeroMalloc(sizeof(UINT) * num_ports);
|
|
UINT i;
|
|
|
|
for (i = 0; i < num_ports; i++)
|
|
{
|
|
ports[i] = *((UINT *)(LIST_DATA(u->PortList, i)));
|
|
}
|
|
|
|
for (i = 0; i < num_ports; i++)
|
|
{
|
|
UINT port = ports[i];
|
|
|
|
DelInt(u->PortList, port);
|
|
}
|
|
|
|
Free(ports);
|
|
}
|
|
UnlockList(u->PortList);
|
|
|
|
SetSockEvent(u->Event);
|
|
}
|
|
|
|
// Delete the UDP port
|
|
void DeletePortFromUdpListener(UDPLISTENER *u, UINT port)
|
|
{
|
|
// Validate arguments
|
|
if (u == NULL || port == 0)
|
|
{
|
|
return;
|
|
}
|
|
|
|
LockList(u->PortList);
|
|
{
|
|
DelInt(u->PortList, port);
|
|
}
|
|
UnlockList(u->PortList);
|
|
|
|
SetSockEvent(u->Event);
|
|
}
|
|
|
|
// Sort function of the interrupt management list
|
|
int CmpInterruptManagerTickList(void *p1, void *p2)
|
|
{
|
|
UINT64 *v1, *v2;
|
|
if (p1 == NULL || p2 == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
v1 = *(UINT64 **)p1;
|
|
v2 = *(UINT64 **)p2;
|
|
if (v1 == NULL || v2 == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (*v1 > *v2)
|
|
{
|
|
return 1;
|
|
}
|
|
else if (*v1 < *v2)
|
|
{
|
|
return -1;
|
|
}
|
|
else
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
// Initialization of the interrupt management
|
|
INTERRUPT_MANAGER *NewInterruptManager()
|
|
{
|
|
INTERRUPT_MANAGER *m = ZeroMalloc(sizeof(INTERRUPT_MANAGER));
|
|
|
|
m->TickList = NewList(CmpInterruptManagerTickList);
|
|
|
|
return m;
|
|
}
|
|
|
|
// Release of the interrupt management
|
|
void FreeInterruptManager(INTERRUPT_MANAGER *m)
|
|
{
|
|
UINT i;
|
|
// Validate arguments
|
|
if (m == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < LIST_NUM(m->TickList); i++)
|
|
{
|
|
UINT64 *v = LIST_DATA(m->TickList, i);
|
|
|
|
Free(v);
|
|
}
|
|
|
|
ReleaseList(m->TickList);
|
|
|
|
Free(m);
|
|
}
|
|
|
|
// Add a number to the interrupt management
|
|
void AddInterrupt(INTERRUPT_MANAGER *m, UINT64 tick)
|
|
{
|
|
// Validate arguments
|
|
if (tick == 0)
|
|
{
|
|
return;
|
|
}
|
|
|
|
LockList(m->TickList);
|
|
{
|
|
if (Search(m->TickList, &tick) == NULL)
|
|
{
|
|
Insert(m->TickList, Clone(&tick, sizeof(UINT64)));
|
|
}
|
|
}
|
|
UnlockList(m->TickList);
|
|
}
|
|
|
|
// Get the interval to the next calling
|
|
UINT GetNextIntervalForInterrupt(INTERRUPT_MANAGER *m)
|
|
{
|
|
UINT ret = INFINITE;
|
|
UINT i;
|
|
LIST *o = NULL;
|
|
UINT64 now = Tick64();
|
|
// Validate arguments
|
|
if (m == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
LockList(m->TickList);
|
|
{
|
|
// Remove entries older than now already
|
|
for (i = 0; i < LIST_NUM(m->TickList); i++)
|
|
{
|
|
UINT64 *v = LIST_DATA(m->TickList, i);
|
|
|
|
if (now >= *v)
|
|
{
|
|
ret = 0;
|
|
|
|
if (o == NULL)
|
|
{
|
|
o = NewListFast(NULL);
|
|
}
|
|
|
|
Add(o, v);
|
|
}
|
|
else
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < LIST_NUM(o); i++)
|
|
{
|
|
UINT64 *v = LIST_DATA(o, i);
|
|
|
|
Free(v);
|
|
|
|
Delete(m->TickList, v);
|
|
}
|
|
|
|
if (o != NULL)
|
|
{
|
|
ReleaseList(o);
|
|
}
|
|
|
|
if (ret == INFINITE)
|
|
{
|
|
if (LIST_NUM(m->TickList) >= 1)
|
|
{
|
|
UINT64 *v = LIST_DATA(m->TickList, 0);
|
|
|
|
ret = (UINT)(*v - now);
|
|
}
|
|
}
|
|
}
|
|
UnlockList(m->TickList);
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Let that the listening socket for the reverse socket to accept the new socket
|
|
void InjectNewReverseSocketToAccept(SOCK *listen_sock, SOCK *s, IP *client_ip, UINT client_port)
|
|
{
|
|
bool ok = false;
|
|
// Validate arguments
|
|
if (listen_sock == NULL || s == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
LockQueue(listen_sock->ReverseAcceptQueue);
|
|
{
|
|
if (listen_sock->CancelAccept == false && listen_sock->Disconnecting == false)
|
|
{
|
|
InsertQueue(listen_sock->ReverseAcceptQueue, s);
|
|
|
|
ok = true;
|
|
|
|
s->ServerMode = true;
|
|
s->IsReverseAcceptedSocket = true;
|
|
|
|
Copy(&s->RemoteIP, client_ip, sizeof(IP));
|
|
s->RemotePort = client_port;
|
|
}
|
|
}
|
|
UnlockQueue(listen_sock->ReverseAcceptQueue);
|
|
|
|
if (ok == false)
|
|
{
|
|
Disconnect(s);
|
|
ReleaseSock(s);
|
|
}
|
|
else
|
|
{
|
|
Set(listen_sock->ReverseAcceptEvent);
|
|
}
|
|
}
|
|
|
|
// Create a listening socket for the reverse socket
|
|
SOCK *ListenReverse()
|
|
{
|
|
SOCK *s = NewSock();
|
|
|
|
s->Type = SOCK_REVERSE_LISTEN;
|
|
s->ListenMode = true;
|
|
s->ReverseAcceptQueue = NewQueue();
|
|
s->ReverseAcceptEvent = NewEvent();
|
|
s->Connected = true;
|
|
|
|
return s;
|
|
}
|
|
|
|
// Accept on the reverse socket
|
|
SOCK *AcceptReverse(SOCK *s)
|
|
{
|
|
// Validate arguments
|
|
if (s == NULL || s->Type != SOCK_REVERSE_LISTEN || s->ListenMode == false)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
while (true)
|
|
{
|
|
SOCK *ret;
|
|
if (s->Disconnecting || s->CancelAccept)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
LockQueue(s->ReverseAcceptQueue);
|
|
{
|
|
ret = GetNext(s->ReverseAcceptQueue);
|
|
}
|
|
UnlockQueue(s->ReverseAcceptQueue);
|
|
|
|
if (ret != NULL)
|
|
{
|
|
StrCpy(ret->UnderlayProtocol, sizeof(ret->UnderlayProtocol), SOCK_UNDERLAY_AZURE);
|
|
|
|
AddProtocolDetailsStr(ret->ProtocolDetails, sizeof(ret->ProtocolDetails), "VPN Azure");
|
|
|
|
return ret;
|
|
}
|
|
|
|
Wait(s->ReverseAcceptEvent, INFINITE);
|
|
}
|
|
}
|
|
|
|
// Start listening on the in-process socket
|
|
SOCK *ListenInProc()
|
|
{
|
|
SOCK *s = NewSock();
|
|
|
|
s->Type = SOCK_INPROC;
|
|
s->ListenMode = true;
|
|
s->InProcAcceptQueue = NewQueue();
|
|
s->InProcAcceptEvent = NewEvent();
|
|
s->Connected = true;
|
|
|
|
return s;
|
|
}
|
|
|
|
// Accept at the in-process socket
|
|
SOCK *AcceptInProc(SOCK *s)
|
|
{
|
|
// Validate arguments
|
|
if (s == NULL || s->Type != SOCK_INPROC || s->ListenMode == false)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
while (true)
|
|
{
|
|
SOCK *ret;
|
|
if (s->Disconnecting || s->CancelAccept)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
LockQueue(s->InProcAcceptQueue);
|
|
{
|
|
ret = GetNext(s->InProcAcceptQueue);
|
|
}
|
|
UnlockQueue(s->InProcAcceptQueue);
|
|
|
|
if (ret != NULL)
|
|
{
|
|
StrCpy(ret->UnderlayProtocol, sizeof(ret->UnderlayProtocol), SOCK_UNDERLAY_INPROC);
|
|
|
|
AddProtocolDetailsStr(ret->ProtocolDetails, sizeof(ret->ProtocolDetails), "InProc");
|
|
|
|
return ret;
|
|
}
|
|
|
|
Wait(s->InProcAcceptEvent, INFINITE);
|
|
}
|
|
}
|
|
|
|
// Connect by the in-process socket
|
|
SOCK *ConnectInProc(SOCK *listen_sock, IP *client_ip, UINT client_port, IP *server_ip, UINT server_port)
|
|
{
|
|
SOCK *ss, *sc;
|
|
bool ok = false;
|
|
// Validate arguments
|
|
if (listen_sock == NULL || listen_sock->Type != SOCK_INPROC || listen_sock->ListenMode == false)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
NewSocketPair(&sc, &ss, client_ip, client_port, server_ip, server_port);
|
|
|
|
LockQueue(listen_sock->InProcAcceptQueue);
|
|
{
|
|
if (listen_sock->CancelAccept == false && listen_sock->Disconnecting == false)
|
|
{
|
|
InsertQueue(listen_sock->InProcAcceptQueue, ss);
|
|
|
|
ok = true;
|
|
}
|
|
}
|
|
UnlockQueue(listen_sock->InProcAcceptQueue);
|
|
|
|
if (ok == false)
|
|
{
|
|
ReleaseSock(ss);
|
|
ReleaseSock(sc);
|
|
return NULL;
|
|
}
|
|
|
|
Set(listen_sock->InProcAcceptEvent);
|
|
|
|
return sc;
|
|
}
|
|
|
|
// Creating a new socket pair
|
|
void NewSocketPair(SOCK **client, SOCK **server, IP *client_ip, UINT client_port, IP *server_ip, UINT server_port)
|
|
{
|
|
IP iptmp;
|
|
TUBE *t1, *t2;
|
|
SOCK *sc, *ss;
|
|
SOCK_EVENT *e1, *e2;
|
|
// Validate arguments
|
|
if (client == NULL || server == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
SetIP(&iptmp, 127, 0, 0, 1);
|
|
if (client_ip == NULL)
|
|
{
|
|
client_ip = &iptmp;
|
|
}
|
|
if (server_ip == NULL)
|
|
{
|
|
server_ip = &iptmp;
|
|
}
|
|
|
|
// Creating a tube
|
|
NewTubePair(&t1, &t2, 0); // t1: C -> S, t2: S -> C
|
|
|
|
// Creating a socket event
|
|
e1 = NewSockEvent();
|
|
e2 = NewSockEvent();
|
|
|
|
SetTubeSockEvent(t1, e1);
|
|
SetTubeSockEvent(t2, e2);
|
|
|
|
sc = NewInProcSocket(t1, t2);
|
|
ss = NewInProcSocket(t2, t1);
|
|
|
|
Copy(&sc->LocalIP, client_ip, sizeof(IP));
|
|
sc->LocalPort = client_port;
|
|
Copy(&sc->RemoteIP, server_ip, sizeof(IP));
|
|
sc->RemotePort = server_port;
|
|
|
|
Copy(&ss->LocalIP, server_ip, sizeof(IP));
|
|
ss->LocalPort = server_port;
|
|
Copy(&ss->RemoteIP, client_ip, sizeof(IP));
|
|
ss->RemotePort = client_port;
|
|
|
|
sc->Connected = true;
|
|
sc->ServerMode = false;
|
|
|
|
ss->Connected = true;
|
|
ss->ServerMode = true;
|
|
|
|
SetTimeout(sc, INFINITE);
|
|
SetTimeout(ss, INFINITE);
|
|
|
|
QuerySocketInformation(sc);
|
|
QuerySocketInformation(ss);
|
|
|
|
ReleaseSockEvent(e1);
|
|
ReleaseSockEvent(e2);
|
|
|
|
ReleaseTube(t1);
|
|
ReleaseTube(t2);
|
|
|
|
*client = sc;
|
|
*server = ss;
|
|
}
|
|
|
|
// Creating a new in-process socket
|
|
SOCK *NewInProcSocket(TUBE *tube_send, TUBE *tube_recv)
|
|
{
|
|
SOCK *s;
|
|
// Validate arguments
|
|
if (tube_recv == NULL || tube_send == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
s = NewSock();
|
|
|
|
s->Type = SOCK_INPROC;
|
|
|
|
s->SendTube = tube_send;
|
|
s->RecvTube = tube_recv;
|
|
|
|
AddRef(tube_send->Ref);
|
|
AddRef(tube_recv->Ref);
|
|
|
|
s->InProcRecvFifo = NewFifo();
|
|
|
|
s->Connected = true;
|
|
|
|
return s;
|
|
}
|
|
|
|
// Transmission process for the in-process socket
|
|
UINT SendInProc(SOCK *sock, void *data, UINT size)
|
|
{
|
|
if (sock == NULL || sock->Type != SOCK_INPROC || sock->Disconnecting || sock->Connected == false)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (IsTubeConnected(sock->SendTube) == false)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (TubeSend(sock->SendTube, data, size, NULL) == false)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
return size;
|
|
}
|
|
|
|
// Receiving process for the in-process socket
|
|
UINT RecvInProc(SOCK *sock, void *data, UINT size)
|
|
{
|
|
FIFO *f;
|
|
UINT ret;
|
|
UINT timeout;
|
|
UINT64 giveup_time;
|
|
TUBEDATA *d = NULL;
|
|
if (sock == NULL || sock->Type != SOCK_INPROC || sock->Disconnecting || sock->Connected == false)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (IsTubeConnected(sock->SendTube) == false)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
f = sock->InProcRecvFifo;
|
|
if (f == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
// If there is data in the FIFO, return it immediately
|
|
ret = ReadFifo(f, data, size);
|
|
if (ret != 0)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
timeout = GetTimeout(sock);
|
|
|
|
giveup_time = Tick64() + (UINT)timeout;
|
|
|
|
// When there is no data in the FIFO, read the next data from the tube
|
|
d = NULL;
|
|
|
|
while (true)
|
|
{
|
|
UINT64 now = 0;
|
|
UINT interval;
|
|
|
|
if (sock->AsyncMode == false)
|
|
{
|
|
now = Tick64();
|
|
|
|
if (now >= giveup_time)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
d = TubeRecvAsync(sock->RecvTube);
|
|
|
|
if (d != NULL)
|
|
{
|
|
break;
|
|
}
|
|
|
|
if (IsTubeConnected(sock->RecvTube) == false)
|
|
{
|
|
break;
|
|
}
|
|
|
|
if (sock->AsyncMode)
|
|
{
|
|
break;
|
|
}
|
|
|
|
interval = (UINT)(giveup_time - now);
|
|
|
|
Wait(sock->RecvTube->Event, interval);
|
|
}
|
|
|
|
if (d == NULL)
|
|
{
|
|
if (IsTubeConnected(sock->RecvTube) == false)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (sock->AsyncMode == false)
|
|
{
|
|
// If a timeout occurs in synchronous mode, disconnect ir
|
|
Disconnect(sock);
|
|
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
// If a timeout occurs in asynchronous mode, returns the blocking error
|
|
return SOCK_LATER;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// If the received data is larger than the requested size, write the rest to FIFO
|
|
if (d->DataSize > size)
|
|
{
|
|
WriteFifo(f, ((UCHAR *)d->Data) + size, d->DataSize - size);
|
|
ret = size;
|
|
}
|
|
else
|
|
{
|
|
ret = d->DataSize;
|
|
}
|
|
|
|
Copy(data, d->Data, ret);
|
|
|
|
FreeTubeData(d);
|
|
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
// Wait for the arrival of data on multiple tubes
|
|
void WaitForTubes(TUBE **tubes, UINT num, UINT timeout)
|
|
{
|
|
// Validate arguments
|
|
if (num != 0 && tubes == NULL)
|
|
{
|
|
return;
|
|
}
|
|
if (timeout == 0)
|
|
{
|
|
return;
|
|
}
|
|
if (num == 0)
|
|
{
|
|
SleepThread(timeout);
|
|
return;
|
|
}
|
|
|
|
#ifdef OS_WIN32
|
|
Win32WaitForTubes(tubes, num, timeout);
|
|
#else // OS_WIN32
|
|
UnixWaitForTubes(tubes, num, timeout);
|
|
#endif // OS_WIN32
|
|
}
|
|
|
|
#ifdef OS_WIN32
|
|
void Win32WaitForTubes(TUBE **tubes, UINT num, UINT timeout)
|
|
{
|
|
HANDLE array[MAXIMUM_WAIT_OBJECTS];
|
|
UINT i;
|
|
|
|
Zero(array, sizeof(array));
|
|
|
|
for (i = 0; i < num; i++)
|
|
{
|
|
TUBE *t = tubes[i];
|
|
|
|
array[i] = t->Event->pData;
|
|
}
|
|
|
|
if (num == 1)
|
|
{
|
|
WaitForSingleObject(array[0], timeout);
|
|
}
|
|
else
|
|
{
|
|
WaitForMultipleObjects(num, array, false, timeout);
|
|
}
|
|
}
|
|
#else // OS_WIN32
|
|
void UnixWaitForTubes(TUBE **tubes, UINT num, UINT timeout)
|
|
{
|
|
int *fds;
|
|
UINT i;
|
|
char tmp[MAX_SIZE];
|
|
bool any_of_tubes_are_readable = false;
|
|
|
|
fds = ZeroMalloc(sizeof(int) * num);
|
|
|
|
for (i = 0; i < num; i++)
|
|
{
|
|
fds[i] = tubes[i]->SockEvent->pipe_read;
|
|
|
|
if (tubes[i]->SockEvent->current_pipe_data != 0)
|
|
{
|
|
any_of_tubes_are_readable = true;
|
|
}
|
|
}
|
|
|
|
if (any_of_tubes_are_readable == false)
|
|
{
|
|
UnixSelectInner(num, fds, 0, NULL, timeout);
|
|
}
|
|
|
|
for (i = 0; i < num; i++)
|
|
{
|
|
int fd = fds[i];
|
|
int readret;
|
|
|
|
tubes[i]->SockEvent->current_pipe_data = 0;
|
|
|
|
do
|
|
{
|
|
readret = read(fd, tmp, sizeof(tmp));
|
|
}
|
|
while (readret >= 1);
|
|
}
|
|
|
|
Free(fds);
|
|
}
|
|
#endif // OS_WIN32
|
|
|
|
// Creating a Tube Flush List
|
|
TUBE_FLUSH_LIST *NewTubeFlushList()
|
|
{
|
|
TUBE_FLUSH_LIST *f = ZeroMalloc(sizeof(TUBE_FLUSH_LIST));
|
|
|
|
f->List = NewListFast(NULL);
|
|
|
|
return f;
|
|
}
|
|
|
|
// Release of the Tube Flush List
|
|
void FreeTubeFlushList(TUBE_FLUSH_LIST *f)
|
|
{
|
|
UINT i;
|
|
// Validate arguments
|
|
if (f == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < LIST_NUM(f->List); i++)
|
|
{
|
|
TUBE *t = LIST_DATA(f->List, i);
|
|
|
|
ReleaseTube(t);
|
|
}
|
|
|
|
ReleaseList(f->List);
|
|
|
|
Free(f);
|
|
}
|
|
|
|
// Add a Tube to the Tube Flush List
|
|
void AddTubeToFlushList(TUBE_FLUSH_LIST *f, TUBE *t)
|
|
{
|
|
// Validate arguments
|
|
if (f == NULL || t == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (t->IsInFlushList)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (IsInList(f->List, t) == false)
|
|
{
|
|
Add(f->List, t);
|
|
|
|
AddRef(t->Ref);
|
|
|
|
t->IsInFlushList = true;
|
|
}
|
|
}
|
|
|
|
// Flush the all tubes in the Tube Flush List
|
|
void FlushTubeFlushList(TUBE_FLUSH_LIST *f)
|
|
{
|
|
UINT i;
|
|
// Validate arguments
|
|
if (f == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < LIST_NUM(f->List); i++)
|
|
{
|
|
TUBE *t = LIST_DATA(f->List, i);
|
|
|
|
TubeFlush(t);
|
|
t->IsInFlushList = false;
|
|
|
|
ReleaseTube(t);
|
|
}
|
|
|
|
DeleteAll(f->List);
|
|
}
|
|
|
|
// Store the error value into PACK
|
|
PACK *PackError(UINT error)
|
|
{
|
|
PACK *p;
|
|
|
|
p = NewPack();
|
|
PackAddInt(p, "error", error);
|
|
|
|
return p;
|
|
}
|
|
|
|
// Get the error value from PACK
|
|
UINT GetErrorFromPack(PACK *p)
|
|
{
|
|
// Validate arguments
|
|
if (p == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
return PackGetInt(p, "error");
|
|
}
|
|
|
|
// Create an entry to PACK for the dummy
|
|
void CreateDummyValue(PACK *p)
|
|
{
|
|
UINT size;
|
|
UCHAR *buf;
|
|
// Validate arguments
|
|
if (p == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
size = Rand32() % HTTP_PACK_RAND_SIZE_MAX;
|
|
buf = Malloc(size);
|
|
Rand(buf, size);
|
|
|
|
PackAddData(p, "pencore", buf, size);
|
|
|
|
Free(buf);
|
|
}
|
|
|
|
// Receive a line
|
|
char *RecvLine(SOCK *s, UINT max_size)
|
|
{
|
|
BUF *b;
|
|
char c;
|
|
char *str;
|
|
// Validate arguments
|
|
if (s == NULL || max_size == 0)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
b = NewBuf();
|
|
while (true)
|
|
{
|
|
UCHAR *buf;
|
|
if (RecvAll(s, &c, sizeof(c), s->SecureMode) == false)
|
|
{
|
|
FreeBuf(b);
|
|
return NULL;
|
|
}
|
|
WriteBuf(b, &c, sizeof(c));
|
|
buf = (UCHAR *)b->Buf;
|
|
if (b->Size > max_size)
|
|
{
|
|
FreeBuf(b);
|
|
return NULL;
|
|
}
|
|
if (b->Size >= 1)
|
|
{
|
|
if (buf[b->Size - 1] == '\n')
|
|
{
|
|
b->Size--;
|
|
if (b->Size >= 1)
|
|
{
|
|
if (buf[b->Size - 1] == '\r')
|
|
{
|
|
b->Size--;
|
|
}
|
|
}
|
|
str = Malloc(b->Size + 1);
|
|
Copy(str, b->Buf, b->Size);
|
|
str[b->Size] = 0;
|
|
FreeBuf(b);
|
|
|
|
return str;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Receive a PACK
|
|
PACK *RecvPack(SOCK *s)
|
|
{
|
|
PACK *p;
|
|
BUF *b;
|
|
void *data;
|
|
UINT sz;
|
|
// Validate arguments
|
|
if (s == NULL || s->Type != SOCK_TCP)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (RecvAll(s, &sz, sizeof(UINT), s->SecureMode) == false)
|
|
{
|
|
return false;
|
|
}
|
|
sz = Endian32(sz);
|
|
if (sz > MAX_PACK_SIZE)
|
|
{
|
|
return false;
|
|
}
|
|
data = MallocEx(sz, true);
|
|
if (RecvAll(s, data, sz, s->SecureMode) == false)
|
|
{
|
|
Free(data);
|
|
return false;
|
|
}
|
|
|
|
b = NewBuf();
|
|
WriteBuf(b, data, sz);
|
|
SeekBuf(b, 0, 0);
|
|
p = BufToPack(b);
|
|
FreeBuf(b);
|
|
Free(data);
|
|
|
|
return p;
|
|
}
|
|
|
|
// Receive a PACK (with checking the hash)
|
|
PACK *RecvPackWithHash(SOCK *s)
|
|
{
|
|
PACK *p;
|
|
BUF *b;
|
|
void *data;
|
|
UINT sz;
|
|
UCHAR hash1[SHA1_SIZE];
|
|
UCHAR hash2[SHA1_SIZE];
|
|
// Validate arguments
|
|
if (s == NULL || s->Type != SOCK_TCP)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (RecvAll(s, &sz, sizeof(UINT), s->SecureMode) == false)
|
|
{
|
|
return false;
|
|
}
|
|
sz = Endian32(sz);
|
|
if (sz > MAX_PACK_SIZE)
|
|
{
|
|
return false;
|
|
}
|
|
data = MallocEx(sz, true);
|
|
if (RecvAll(s, data, sz, s->SecureMode) == false)
|
|
{
|
|
Free(data);
|
|
return false;
|
|
}
|
|
|
|
Sha1(hash1, data, sz);
|
|
if (RecvAll(s, hash2, sizeof(hash2), s->SecureMode) == false)
|
|
{
|
|
Free(data);
|
|
return false;
|
|
}
|
|
|
|
if (Cmp(hash1, hash2, SHA1_SIZE) != 0)
|
|
{
|
|
Free(data);
|
|
return false;
|
|
}
|
|
|
|
b = NewBuf();
|
|
WriteBuf(b, data, sz);
|
|
SeekBuf(b, 0, 0);
|
|
p = BufToPack(b);
|
|
FreeBuf(b);
|
|
Free(data);
|
|
|
|
return p;
|
|
}
|
|
|
|
// Send a PACK
|
|
bool SendPack(SOCK *s, PACK *p)
|
|
{
|
|
BUF *b;
|
|
UINT sz;
|
|
// Validate arguments
|
|
if (s == NULL || p == NULL || s->Type != SOCK_TCP)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
b = PackToBuf(p);
|
|
sz = Endian32(b->Size);
|
|
|
|
SendAdd(s, &sz, sizeof(UINT));
|
|
SendAdd(s, b->Buf, b->Size);
|
|
FreeBuf(b);
|
|
|
|
return SendNow(s, s->SecureMode);
|
|
}
|
|
|
|
// Send a Pack (with adding a hash)
|
|
bool SendPackWithHash(SOCK *s, PACK *p)
|
|
{
|
|
BUF *b;
|
|
UINT sz;
|
|
UCHAR hash[SHA1_SIZE];
|
|
// Validate arguments
|
|
if (s == NULL || p == NULL || s->Type != SOCK_TCP)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
b = PackToBuf(p);
|
|
sz = Endian32(b->Size);
|
|
|
|
SendAdd(s, &sz, sizeof(UINT));
|
|
SendAdd(s, b->Buf, b->Size);
|
|
Sha1(hash, b->Buf, b->Size);
|
|
SendAdd(s, hash, sizeof(hash));
|
|
|
|
FreeBuf(b);
|
|
|
|
return SendNow(s, s->SecureMode);
|
|
}
|
|
|
|
// Get SNI name from the SSL packet
|
|
bool GetSniNameFromSslPacket(UCHAR *packet_buf, UINT packet_size, char *sni, UINT sni_size)
|
|
{
|
|
BUF *buf;
|
|
bool ret = false;
|
|
UCHAR content_type;
|
|
USHORT version;
|
|
USHORT handshake_length;
|
|
|
|
// Validate arguments
|
|
if (packet_buf == NULL || packet_size <= 11)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (!(packet_buf[0] == 0x16 && packet_buf[1] >= 0x03 &&
|
|
packet_buf[5] == 0x01 && packet_buf[6] == 0x00 &&
|
|
packet_buf[9] >= 0x03))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
buf = NewBufFromMemory(packet_buf, packet_size);
|
|
|
|
if (ReadBuf(buf, &content_type, sizeof(UCHAR)) == sizeof(UCHAR) &&
|
|
ReadBuf(buf, &version, sizeof(USHORT)) == sizeof(USHORT) &&
|
|
ReadBuf(buf, &handshake_length, sizeof(USHORT)) == sizeof(USHORT))
|
|
{
|
|
version = Endian16(version);
|
|
handshake_length = Endian16(handshake_length);
|
|
|
|
if (content_type == 0x16 && version >= 0x0301)
|
|
{
|
|
UCHAR *handshake_data = Malloc(handshake_length);
|
|
|
|
if (ReadBuf(buf, handshake_data, handshake_length) == handshake_length)
|
|
{
|
|
BUF *buf2 = NewBufFromMemory(handshake_data, handshake_length);
|
|
USHORT handshake_type;
|
|
USHORT handshake_length_2;
|
|
|
|
if (ReadBuf(buf2, &handshake_type, sizeof(USHORT)) == sizeof(USHORT) &&
|
|
ReadBuf(buf2, &handshake_length_2, sizeof(USHORT)) == sizeof(USHORT))
|
|
{
|
|
handshake_type = Endian16(handshake_type);
|
|
handshake_length_2 = Endian16(handshake_length_2);
|
|
|
|
if (handshake_type == 0x0100 && handshake_length_2 <= (handshake_length - 4))
|
|
{
|
|
USHORT version2;
|
|
|
|
if (ReadBuf(buf2, &version2, sizeof(USHORT)) == sizeof(USHORT))
|
|
{
|
|
version2 = Endian16(version2);
|
|
|
|
if (version2 >= 0x0301)
|
|
{
|
|
UCHAR rand[32];
|
|
|
|
if (ReadBuf(buf2, rand, sizeof(rand)) == sizeof(rand))
|
|
{
|
|
UCHAR session_id_len;
|
|
|
|
if (ReadBuf(buf2, &session_id_len, sizeof(UCHAR)) == sizeof(UCHAR))
|
|
{
|
|
if (ReadBuf(buf2, NULL, session_id_len) == session_id_len)
|
|
{
|
|
USHORT cipher_len;
|
|
|
|
if (ReadBuf(buf2, &cipher_len, sizeof(USHORT)) == sizeof(USHORT))
|
|
{
|
|
cipher_len = Endian16(cipher_len);
|
|
|
|
if (ReadBuf(buf2, NULL, cipher_len) == cipher_len)
|
|
{
|
|
UCHAR comps_len;
|
|
|
|
if (ReadBuf(buf2, &comps_len, sizeof(UCHAR)) == sizeof(UCHAR))
|
|
{
|
|
if (ReadBuf(buf2, NULL, comps_len) == comps_len)
|
|
{
|
|
USHORT ext_length;
|
|
|
|
if (ReadBuf(buf2, &ext_length, sizeof(USHORT)) == sizeof(USHORT))
|
|
{
|
|
UCHAR *ext_buf;
|
|
|
|
ext_length = Endian16(ext_length);
|
|
|
|
ext_buf = Malloc(ext_length);
|
|
|
|
if (ReadBuf(buf2, ext_buf, ext_length) == ext_length)
|
|
{
|
|
BUF *ebuf = NewBufFromMemory(ext_buf, ext_length);
|
|
|
|
while (ret == false)
|
|
{
|
|
USHORT type;
|
|
USHORT data_len;
|
|
UCHAR *data;
|
|
|
|
if (ReadBuf(ebuf, &type, sizeof(USHORT)) != sizeof(USHORT))
|
|
{
|
|
break;
|
|
}
|
|
|
|
if (ReadBuf(ebuf, &data_len, sizeof(USHORT)) != sizeof(USHORT))
|
|
{
|
|
break;
|
|
}
|
|
|
|
type = Endian16(type);
|
|
data_len = Endian16(data_len);
|
|
|
|
data = Malloc(data_len);
|
|
|
|
if (ReadBuf(ebuf, data, data_len) != data_len)
|
|
{
|
|
Free(data);
|
|
break;
|
|
}
|
|
|
|
if (type == 0x0000)
|
|
{
|
|
BUF *dbuf = NewBufFromMemory(data, data_len);
|
|
|
|
USHORT total_len;
|
|
|
|
if (ReadBuf(dbuf, &total_len, sizeof(USHORT)) == sizeof(USHORT))
|
|
{
|
|
UCHAR c;
|
|
total_len = Endian16(total_len);
|
|
|
|
if (ReadBuf(dbuf, &c, sizeof(UCHAR)) == sizeof(UCHAR))
|
|
{
|
|
if (c == 0)
|
|
{
|
|
USHORT name_len;
|
|
|
|
if (ReadBuf(dbuf, &name_len, sizeof(USHORT)) == sizeof(USHORT))
|
|
{
|
|
char *name_buf;
|
|
name_len = Endian16(name_len);
|
|
|
|
name_buf = ZeroMalloc(name_len + 1);
|
|
|
|
if (ReadBuf(dbuf, name_buf, name_len) == name_len)
|
|
{
|
|
if (StrLen(name_buf) >= 1)
|
|
{
|
|
ret = true;
|
|
|
|
StrCpy(sni, sni_size, name_buf);
|
|
}
|
|
}
|
|
|
|
Free(name_buf);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
FreeBuf(dbuf);
|
|
}
|
|
|
|
Free(data);
|
|
}
|
|
|
|
FreeBuf(ebuf);
|
|
}
|
|
|
|
Free(ext_buf);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
FreeBuf(buf2);
|
|
}
|
|
|
|
Free(handshake_data);
|
|
}
|
|
}
|
|
|
|
FreeBuf(buf);
|
|
|
|
if (ret)
|
|
{
|
|
Trim(sni);
|
|
|
|
if (IsEmptyStr(sni))
|
|
{
|
|
ret = false;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
void SetDhParam(DH_CTX *dh)
|
|
{
|
|
if (dh_param)
|
|
{
|
|
DhFree(dh_param);
|
|
}
|
|
|
|
dh_param = dh;
|
|
}
|