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https://github.com/SoftEtherVPN/SoftEtherVPN.git
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90 lines
2.6 KiB
C
90 lines
2.6 KiB
C
// SoftEther VPN Source Code - Developer Edition Master Branch
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// Cedar Communication Module
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// NativeStack.h
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// Header of NativeStack.c
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#ifndef NATIVESTACK_H
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#define NATIVESTACK_H
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//// Constants
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#define NS_MAC_ADDRESS_BYTE_1 0xDA // First byte of the MAC address
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#define NS_CHECK_IPTABLES_INTERVAL_INIT (1 * 1000)
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#define NS_CHECK_IPTABLES_INTERVAL_MAX (5 * 60 * 1000)
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//// Type
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struct NATIVE_STACK
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{
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CEDAR *Cedar;
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IPC *Ipc; // IPC object
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char DeviceName[MAX_SIZE]; // Ethernet device name
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THREAD *MainThread; // Main thread
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bool Halt; // Halting flag
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CANCEL *Cancel; // Cancel
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UCHAR MacAddress[6]; // MAC address of the virtual host
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ETH *Eth; // Eth device
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SOCK *Sock1; // Sock1 (To be used in the bridge side)
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SOCK *Sock2; // Sock2 (Used in the IPC side)
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DHCP_OPTION_LIST CurrentDhcpOptionList; // Current DHCP options list
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IP DnsServerIP; // IP address of the DNS server
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IP DnsServerIP2; // IP address of the DNS server #2
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bool IsIpRawMode;
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IP MyIP_InCaseOfIpRawMode; // My IP
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THREAD *IpTablesThread;
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EVENT *IpTablesHaltEvent;
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bool IpTablesHalt;
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bool IpTablesInitOk;
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};
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struct IPTABLES_ENTRY
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{
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char Chain[64];
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UINT LineNumber;
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char ConditionAndArgs[MAX_SIZE];
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IP DummySrcIp, DummyDestIP;
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UINT DummyMark;
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};
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struct IPTABLES_STATE
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{
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UCHAR SeedHash[SHA1_SIZE];
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LIST *EntryList;
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bool HasError;
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};
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//// Function prototype
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NATIVE_STACK *NewNativeStack(CEDAR *cedar, char *device_name, char *mac_address_seed);
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void FreeNativeStack(NATIVE_STACK *a);
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void NsGenMacAddress(void *dest, char *mac_address_seed, char *device_name);
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void NsMainThread(THREAD *thread, void *param);
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void NsGenMacAddressSignatureForMachine(UCHAR *dst_last_2, UCHAR *src_mac_addr_4);
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bool NsIsMacAddressOnLocalhost(UCHAR *mac);
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bool NsStartIpTablesTracking(NATIVE_STACK *a);
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void NsStopIpTablesTracking(NATIVE_STACK *a);
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void NsIpTablesThread(THREAD *thread, void *param);
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IPTABLES_STATE *GetCurrentIpTables();
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void FreeIpTablesState(IPTABLES_STATE *s);
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bool IsIpTablesSupported();
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IPTABLES_ENTRY *SearchIpTables(IPTABLES_STATE *s, char *chain, IP *src_ip, IP *dest_ip, UINT mark);
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UINT GetCurrentIpTableLineNumber(char *chain, IP *src_ip, IP *dest_ip, UINT mark);
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IPTABLES_STATE *StartAddIpTablesEntryForNativeStack(void *seed, UINT seed_size);
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void EndAddIpTablesEntryForNativeStack(IPTABLES_STATE *s);
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bool MaintainAddIpTablesEntryForNativeStack(IPTABLES_STATE *s);
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void GenerateDummyIpAndMark(void *hash_seed, IPTABLES_ENTRY *e, UINT id);
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UINT GenerateDummyMark(PRAND *p);
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void GenerateDummyIp(PRAND *p, IP *ip);
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#endif // NATIVESTACK_H
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