mirror of
https://github.com/SoftEtherVPN/SoftEtherVPN.git
synced 2024-09-19 10:10:40 +03:00
247 lines
8.8 KiB
C
247 lines
8.8 KiB
C
// SoftEther VPN Source Code - Developer Edition Master Branch
|
|
// Cedar Communication Module
|
|
|
|
|
|
// IPC.h
|
|
// Header of IPC.c
|
|
|
|
#ifndef IPC_H
|
|
#define IPC_H
|
|
|
|
#include "Cedar.h"
|
|
#include "Proto_WireGuard.h"
|
|
|
|
#include "Mayaqua/TcpIp.h"
|
|
|
|
// Constants
|
|
#define IPC_ARP_LIFETIME (3 * 60 * 1000)
|
|
#define IPC_ARP_GIVEUPTIME (1 * 1000)
|
|
#define IPC_DHCP_TIMEOUT (5 * 1000)
|
|
#define IPC_DHCP_MIN_LEASE 5
|
|
#define IPC_DHCP_DEFAULT_LEASE 3600
|
|
|
|
#define IPC_MAX_PACKET_QUEUE_LEN 10000
|
|
|
|
#define IPC_DHCP_VENDOR_ID "MSFT 5.0"
|
|
|
|
#define IPC_PASSWORD_MSCHAPV2_TAG "xH7DiNlurDhcYV4a:"
|
|
|
|
#define IPC_LAYER_2 2
|
|
#define IPC_LAYER_3 3
|
|
|
|
// IPv6 constants
|
|
#define IPC_IPV6_NDT_LIFETIME (30 * 1000) // as per REACHABLE_TIME constant of RFC4861
|
|
#define IPC_IPV6_NDT_GIVEUPTIME (3 * 1000) // as per MAX_MULTICAST_SOLICIT * RETRANS_TIMER constants of RFC4861
|
|
#define IPC_IPV6_RA_INTERVAL (2 * 1000) // Windows gets stuck if it is bigger
|
|
#define IPC_IPV6_RA_MAX_RETRIES 2 // Windows seems to be stuck when it doesn't receive an answer in due time
|
|
|
|
// Protocol status
|
|
#define IPC_PROTO_STATUS_CLOSED 0x0
|
|
#define IPC_PROTO_STATUS_CONFIG 0x1
|
|
#define IPC_PROTO_STATUS_CONFIG_WAIT 0x2
|
|
#define IPC_PROTO_STATUS_OPENED 0x10
|
|
#define IPC_PROTO_STATUS_REJECTED 0x100
|
|
|
|
#define IPC_PROTO_SET_STATUS(ipc, proto, value) ((ipc) != NULL ? ((ipc->proto) = (value)) : 0)
|
|
#define IPC_PROTO_GET_STATUS(ipc, proto) ((ipc) != NULL ? (ipc->proto) : IPC_PROTO_STATUS_REJECTED)
|
|
|
|
// ARP table entry
|
|
struct IPC_ARP
|
|
{
|
|
IP Ip; // IP address
|
|
bool Resolved; // Whether the MAC address have been resolved
|
|
UCHAR MacAddress[6]; // MAC address
|
|
UINT64 GiveupTime; // Time to give up (in the case of unresolved)
|
|
UINT64 ExpireTime; // Expiration date (If resolved)
|
|
QUEUE *PacketQueue; // Transmission packet queue
|
|
};
|
|
|
|
// DHCP release queue
|
|
struct IPC_DHCP_RELEASE_QUEUE
|
|
{
|
|
DHCP_OPTION_LIST Req;
|
|
UINT TranId;
|
|
UCHAR MacAddress[6];
|
|
};
|
|
|
|
// IPC_SESSION_SHARED_BUFFER_DATA
|
|
struct IPC_SESSION_SHARED_BUFFER_DATA
|
|
{
|
|
char ProtocolDetails[256];
|
|
bool EnableUdpAccel;
|
|
bool UsingUdpAccel;
|
|
};
|
|
|
|
// IPC_PARAM
|
|
struct IPC_PARAM
|
|
{
|
|
char ClientName[MAX_SIZE];
|
|
char Postfix[MAX_SIZE];
|
|
char HubName[MAX_HUBNAME_LEN + 1];
|
|
char UserName[MAX_USERNAME_LEN + 1];
|
|
char Password[MAX_PASSWORD_LEN + 1];
|
|
char WgKey[WG_KEY_BASE64_SIZE];
|
|
IP ClientIp;
|
|
UINT ClientPort;
|
|
IP ServerIp;
|
|
UINT ServerPort;
|
|
char ClientHostname[MAX_SIZE];
|
|
char CryptName[MAX_SIZE];
|
|
bool BridgeMode;
|
|
UINT Mss;
|
|
bool IsL3Mode;
|
|
X *ClientCertificate;
|
|
bool RadiusOK;
|
|
UINT Layer;
|
|
};
|
|
|
|
// DHCPv4 response awaiter
|
|
struct IPC_DHCPV4_AWAIT
|
|
{
|
|
bool IsAwaiting;
|
|
DHCPV4_DATA *DhcpData;
|
|
UINT TransCode;
|
|
UINT OpCode;
|
|
};
|
|
|
|
// IPC_ASYNC object
|
|
struct IPC_ASYNC
|
|
{
|
|
CEDAR *Cedar; // Cedar
|
|
IPC_PARAM Param; // Parameters for creating IPC
|
|
THREAD *Thread; // Thread
|
|
SOCK_EVENT *SockEvent; // Socket events that is set when the connection is completed
|
|
bool Done; // Processing completion flag
|
|
IPC *Ipc; // IPC object (if it fails to connect, the value is NULL)
|
|
TUBE *TubeForDisconnect; // Tube for disconnection notification
|
|
UINT ErrorCode; // Error code in the case of failing to connect
|
|
DHCP_OPTION_LIST L3ClientAddressOption; // Client IP address option (Only in the case of L3 mode)
|
|
UINT64 L3DhcpRenewInterval; // DHCP update interval
|
|
UINT64 L3NextDhcpRenewTick; // DHCP renewal time of the next
|
|
bool DhcpAllocFailed; // Failed to get IP address from the DHCP server
|
|
};
|
|
|
|
// IPC object
|
|
struct IPC
|
|
{
|
|
CEDAR *Cedar;
|
|
char HubName[MAX_HUBNAME_LEN + 1];
|
|
char ClientHostname[MAX_SIZE];
|
|
UCHAR random[SHA1_SIZE];
|
|
char SessionName[MAX_SESSION_NAME_LEN + 1];
|
|
char ConnectionName[MAX_CONNECTION_NAME_LEN + 1];
|
|
POLICY *Policy;
|
|
SOCK *Sock;
|
|
INTERRUPT_MANAGER *Interrupt; // Interrupt manager
|
|
IP ClientIPAddress; // IP address of the client
|
|
IP SubnetMask; // Subnet mask of the client
|
|
IP DefaultGateway; // Default gateway address
|
|
IP BroadcastAddress; // Broadcast address
|
|
UCHAR MacAddress[6]; // MAC address
|
|
UCHAR Padding[2];
|
|
LIST *ArpTable; // ARP table
|
|
QUEUE *IPv4ReceivedQueue; // IPv4 reception queue
|
|
UINT IPv4State;
|
|
IPC_DHCPV4_AWAIT DHCPv4Awaiter;
|
|
TUBE_FLUSH_LIST *FlushList; // Tube Flush List
|
|
UCHAR MsChapV2_ServerResponse[20]; // Server response
|
|
DHCP_CLASSLESS_ROUTE_TABLE ClasslessRoute; // Classless routing table
|
|
SHARED_BUFFER *IpcSessionSharedBuffer; // A shared buffer between IPC and Session
|
|
IPC_SESSION_SHARED_BUFFER_DATA *IpcSessionShared; // Shared data between IPC and Session
|
|
UINT Layer;
|
|
|
|
// IPv6 stuff
|
|
QUEUE *IPv6ReceivedQueue; // IPv6 reception queue
|
|
UINT IPv6State;
|
|
LIST *IPv6NeighborTable; // Neighbor Discovery Table
|
|
LIST *IPv6RouterAdvs; // Router offered prefixes
|
|
UINT64 IPv6ClientEUI; // The EUI of the client (for the SLAAC autoconf)
|
|
UINT64 IPv6ServerEUI; // The EUI of the server (from the IPC Mac address)
|
|
};
|
|
|
|
// MS-CHAPv2 authentication information
|
|
struct IPC_MSCHAP_V2_AUTHINFO
|
|
{
|
|
char MsChapV2_PPPUsername[MAX_SIZE]; // MS-CHAPv2 Username
|
|
UCHAR MsChapV2_ServerChallenge[16]; // MS-CHAPv2 Server Challenge
|
|
UCHAR MsChapV2_ClientChallenge[16]; // MS-CHAPv2 Client Challenge
|
|
UCHAR MsChapV2_ClientResponse[24]; // MS-CHAPv2 Client Response
|
|
EAP_CLIENT *MsChapV2_EapClient; // EAP client
|
|
};
|
|
|
|
struct IPC_IPV6_ROUTER_ADVERTISEMENT
|
|
{
|
|
IP RoutedPrefix;
|
|
IP RoutedMask;
|
|
IP RouterAddress;
|
|
UCHAR RouterMacAddress[6];
|
|
UCHAR RouterLinkLayerAddress[6];
|
|
};
|
|
|
|
IPC *NewIPC(CEDAR *cedar, char *client_name, char *postfix, char *hubname, char *username, char *password, char *wg_key,
|
|
UINT *error_code, IP *client_ip, UINT client_port, IP *server_ip, UINT server_port,
|
|
char *client_hostname, char *crypt_name,
|
|
bool bridge_mode, UINT mss, EAP_CLIENT *eap_client, X *client_certificate, bool external_auth,
|
|
UINT layer);
|
|
IPC *NewIPCByParam(CEDAR *cedar, IPC_PARAM *param, UINT *error_code);
|
|
IPC *NewIPCBySock(CEDAR *cedar, SOCK *s, void *mac_address);
|
|
void FreeIPC(IPC *ipc);
|
|
bool IsIPCConnected(IPC *ipc);
|
|
void IPCSetSockEventWhenRecvL2Packet(IPC *ipc, SOCK_EVENT *e);
|
|
void IPCSendL2(IPC *ipc, void *data, UINT size);
|
|
void IPCSendIPv4(IPC *ipc, void *data, UINT size);
|
|
BLOCK *IPCRecvL2(IPC *ipc);
|
|
BLOCK *IPCRecvIPv4(IPC *ipc);
|
|
void IPCProcessInterrupts(IPC *ipc);
|
|
void IPCProcessL3EventsIPv4Only(IPC *ipc);
|
|
void IPCProcessL3Events(IPC *ipc);
|
|
void IPCProcessL3EventsEx(IPC *ipc, UINT64 now);
|
|
bool IPCSetIPv4Parameters(IPC *ipc, IP *ip, IP *subnet, IP *gw, DHCP_CLASSLESS_ROUTE_TABLE *rt);
|
|
IPC_ARP *IPCNewARP(IP *ip, UCHAR *mac_address);
|
|
void IPCFreeARP(IPC_ARP *a);
|
|
int IPCCmpArpTable(void *p1, void *p2);
|
|
void IPCSendIPv4Unicast(IPC *ipc, void *data, UINT size, IP *next_ip);
|
|
IPC_ARP *IPCSearchArpTable(LIST *arpTable, IP *ip);
|
|
void IPCSendIPv4WithDestMacAddr(IPC *ipc, void *data, UINT size, UCHAR *dest_mac_addr);
|
|
void IPCFlushArpTable(IPC *ipc);
|
|
void IPCFlushArpTableEx(IPC *ipc, UINT64 now);
|
|
void IPCProcessArp(IPC *ipc, BLOCK *b);
|
|
void IPCAssociateOnArpTable(IPC *ipc, IP *ip, UCHAR *mac_address);
|
|
|
|
|
|
|
|
DHCPV4_DATA *IPCSendDhcpRequest(IPC *ipc, IP *dest_ip, UINT tran_id, DHCP_OPTION_LIST *opt, UINT expecting_code, UINT timeout, TUBE *discon_poll_tube);
|
|
BUF *IPCBuildDhcpRequest(IPC *ipc, IP *dest_ip, UINT tran_id, DHCP_OPTION_LIST *opt);
|
|
BUF *IPCBuildDhcpRequestOptions(IPC *ipc, DHCP_OPTION_LIST *opt);
|
|
bool IPCDhcpAllocateIP(IPC *ipc, DHCP_OPTION_LIST *opt, TUBE *discon_poll_tube);
|
|
bool IPCDhcpRequestInformIP(IPC *ipc, DHCP_OPTION_LIST *opt, TUBE *discon_poll_tube, IP *client_ip);
|
|
void IPCDhcpRenewIP(IPC *ipc, IP *dhcp_server);
|
|
void IPCDhcpFreeIP(IPC *ipc, IP *dhcp_server);
|
|
IPC_ASYNC *NewIPCAsync(CEDAR *cedar, IPC_PARAM *param, SOCK_EVENT *sock_event);
|
|
void IPCAsyncThreadProc(THREAD *thread, void *param);
|
|
void FreeIPCAsync(IPC_ASYNC *a);
|
|
|
|
// IPv6 stuff
|
|
// Memory management
|
|
void IPCIPv6Init(IPC *ipc);
|
|
void IPCIPv6Free(IPC *ipc);
|
|
// NDT
|
|
void IPCIPv6AssociateOnNDT(IPC *ipc, IP *ip, UCHAR *mac_address);
|
|
void IPCIPv6AssociateOnNDTEx(IPC *ipc, IP *ip, UCHAR *mac_address, bool isNeighborAdv);
|
|
void IPCIPv6FlushNDT(IPC *ipc);
|
|
void IPCIPv6FlushNDTEx(IPC *ipc, UINT64 now);
|
|
bool IPCIPv6CheckExistingLinkLocal(IPC *ipc, UINT64 eui);
|
|
// RA
|
|
void IPCIPv6AddRouterPrefixes(IPC *ipc, ICMPV6_OPTION_LIST *recvPrefix, UCHAR *macAddress, IP *ip);
|
|
bool IPCIPv6CheckUnicastFromRouterPrefix(IPC *ipc, IP *ip, IPC_IPV6_ROUTER_ADVERTISEMENT *matchedRA);
|
|
bool IPCSendIPv6RouterSoliciation(IPC *ipc, bool blocking);
|
|
// Data flow
|
|
BLOCK *IPCIPv6Recv(IPC *ipc);
|
|
void IPCIPv6Send(IPC *ipc, void *data, UINT size);
|
|
void IPCIPv6SendWithDestMacAddr(IPC *ipc, void *data, UINT size, UCHAR *dest_mac_addr);
|
|
void IPCIPv6SendUnicast(IPC *ipc, void *data, UINT size, IP *next_ip);
|
|
|
|
bool ParseAndExtractMsChapV2InfoFromPassword(IPC_MSCHAP_V2_AUTHINFO *d, char *password);
|
|
|
|
#endif // IPC_H
|