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885e6fa94e
* Checks if input encoded key is 24 characters long. * Checks if the input data is a valid base64.
105 lines
6.6 KiB
C++
105 lines
6.6 KiB
C++
#pragma once
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#ifndef NETCONSOLE
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#include "engine/net_chan.h"
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#define MAX_STREAMS 2
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#define FRAGMENT_BITS 8
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#define FRAGMENT_SIZE (1<<FRAGMENT_BITS)
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// user message
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#define MAX_USER_MSG_DATA 511 // <-- 255 in Valve Source.
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#define NETMSG_TYPE_BITS 8 // must be 2^NETMSG_TYPE_BITS > SVC_LASTMSG (6 in Valve Source).
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#define NETMSG_LENGTH_BITS 12 // 512 bytes (11 in Valve Source, 256 bytes).
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#define NET_MIN_MESSAGE 5 // Even connectionless packets require int32 value (-1) + 1 byte content
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constexpr unsigned int AES_128_KEY_SIZE = 16;
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constexpr unsigned int AES_128_B64_ENCODED_SIZE = 24;
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constexpr const char* DEFAULT_NET_ENCRYPTION_KEY = "WDNWLmJYQ2ZlM0VoTid3Yg==";
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/* ==== CNETCHAN ======================================================================================================================================================== */
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inline CMemory p_NET_Init;
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inline auto v_NET_Init = p_NET_Init.RCast<void* (*)(bool bDeveloper)>();
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inline CMemory p_NET_Shutdown;
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inline auto v_NET_Shutdown = p_NET_Shutdown.RCast<void (*)(void* thisptr, const char* szReason, uint8_t bBadRep, bool bRemoveNow)>();
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inline CMemory p_NET_SetKey;
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inline auto v_NET_SetKey = p_NET_SetKey.RCast<void (*)(uintptr_t pKey, const char* szHash)>();
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inline CMemory p_NET_ReceiveDatagram;
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inline auto v_NET_ReceiveDatagram = p_NET_ReceiveDatagram.RCast<bool (*)(int iSocket, netpacket_s* pInpacket, bool bRaw)>();
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inline CMemory p_NET_SendDatagram;
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inline auto v_NET_SendDatagram = p_NET_SendDatagram.RCast<int (*)(SOCKET s, void* pPayload, int iLenght, v_netadr_t* pAdr, bool bEncrypted)>();
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inline CMemory p_NET_PrintFunc;
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inline auto v_NET_PrintFunc = p_NET_PrintFunc.RCast<void(*)(const char* fmt)>();
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///////////////////////////////////////////////////////////////////////////////
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bool NET_ReceiveDatagram(int iSocket, netpacket_s* pInpacket, bool bRaw);
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int NET_SendDatagram(SOCKET s, void* pPayload, int iLenght, v_netadr_t* pAdr, bool bEncrypted);
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void NET_SetKey(string svNetKey);
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void NET_GenerateKey();
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void NET_PrintFunc(const char* fmt, ...);
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void NET_Shutdown(void* thisptr, const char* szReason, uint8_t bBadRep, bool bRemoveNow);
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void NET_DisconnectClient(CClient* pClient, int nIndex, const char* szReason, uint8_t bBadRep, bool bRemoveNow);
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void NET_Attach();
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void NET_Detach();
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///////////////////////////////////////////////////////////////////////////////
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extern string g_svNetKey;
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extern uintptr_t g_pNetKey;
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inline std::mutex g_NetKeyMutex;
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///////////////////////////////////////////////////////////////////////////////
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class VNet : public IDetour
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{
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virtual void GetAdr(void) const
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{
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spdlog::debug("| FUN: NET_Init : {:#18x} |\n", p_NET_Init.GetPtr());
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spdlog::debug("| FUN: NET_Shutdown : {:#18x} |\n", p_NET_Shutdown.GetPtr());
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spdlog::debug("| FUN: NET_SetKey : {:#18x} |\n", p_NET_SetKey.GetPtr());
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spdlog::debug("| FUN: NET_ReceiveDatagram : {:#18x} |\n", p_NET_ReceiveDatagram.GetPtr());
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spdlog::debug("| FUN: NET_SendDatagram : {:#18x} |\n", p_NET_SendDatagram.GetPtr());
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spdlog::debug("| FUN: NET_PrintFunc : {:#18x} |\n", p_NET_PrintFunc.GetPtr());
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spdlog::debug("| VAR: g_pNetKey : {:#18x} |\n", g_pNetKey);
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spdlog::debug("+----------------------------------------------------------------+\n");
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}
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virtual void GetFun(void) const
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{
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#if defined (GAMEDLL_S0) || defined (GAMEDLL_S1) || defined (GAMEDLL_S2)
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p_NET_Init = g_GameDll.FindPatternSIMD(reinterpret_cast<rsig_t>("\x48\x89\x5C\x24\x08\x48\x89\x6C\x24\x10\x48\x89\x74\x24\x18\x48\x89\x7C\x24\x20\x41\x54\x41\x56\x41\x57\x48\x81\xEC\xC0\x01\x00"), "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx");
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p_NET_Shutdown = g_GameDll.FindPatternSIMD(reinterpret_cast<rsig_t>("\x48\x89\x6C\x24\x18\x56\x57\x41\x56\x48\x83\xEC\x30\x83\xB9\xD8"), "xxxxxxxxxxxxxxxx");
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#elif defined (GAMEDLL_S3)
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p_NET_Init = g_GameDll.FindPatternSIMD(reinterpret_cast<rsig_t>("\x48\x89\x5C\x24\x08\x48\x89\x6C\x24\x10\x48\x89\x74\x24\x18\x48\x89\x7C\x24\x20\x41\x54\x41\x56\x41\x57\x48\x81\xEC\xF0\x01\x00"), "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx");
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p_NET_Shutdown = g_GameDll.FindPatternSIMD(reinterpret_cast<rsig_t>("\x48\x89\x6C\x24\x18\x56\x57\x41\x56\x48\x83\xEC\x30\x83\xB9\xD0"), "xxxxxxxxxxxxxxxx");
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#endif
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p_NET_SetKey = g_GameDll.FindPatternSIMD(reinterpret_cast<rsig_t>("\x48\x89\x5C\x24\x08\x48\x89\x6C\x24\x10\x48\x89\x74\x24\x18\x57\x48\x83\xEC\x20\x48\x8B\xF9\x41\xB8"), "xxxxxxxxxxxxxxxxxxxxxxxxx");
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p_NET_ReceiveDatagram = g_GameDll.FindPatternSIMD(reinterpret_cast<rsig_t>("\x48\x89\x74\x24\x18\x48\x89\x7C\x24\x20\x55\x41\x54\x41\x55\x41\x56\x41\x57\x48\x8D\xAC\x24\x50\xEB"), "xxxxxxxxxxxxxxxxxxxxxxxxx");
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p_NET_SendDatagram = g_GameDll.FindPatternSIMD(reinterpret_cast<rsig_t>("\x48\x89\x5C\x24\x08\x48\x89\x6C\x24\x10\x48\x89\x74\x24\x18\x57\x41\x56\x41\x57\x48\x81\xEC\x00\x05\x00\x00"), "xxxxxxxxxxxxxxxxxxxxxxx?xxx");
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p_NET_PrintFunc = g_GameDll.FindPatternSIMD(reinterpret_cast<rsig_t>("\x48\x89\x54\x24\x10\x4C\x89\x44\x24\x18\x4C\x89\x4C\x24\x20\xC3\x48"), "xxxxxxxxxxxxxxxxx");
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v_NET_Init = p_NET_Init.RCast<void* (*)(bool)>(); /*48 89 5C 24 08 48 89 6C 24 10 48 89 74 24 18 48 89 7C 24 20 41 54 41 56 41 57 48 81 EC F0 01 00*/
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v_NET_Shutdown = p_NET_Shutdown.RCast<void (*)(void*, const char*, uint8_t, bool)>(); /*48 89 6C 24 18 56 57 41 56 48 83 EC 30 83 B9 D0*/
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v_NET_SetKey = p_NET_SetKey.RCast<void (*)(uintptr_t, const char*)>(); /*48 89 5C 24 08 48 89 6C 24 10 48 89 74 24 18 57 48 83 EC 20 48 8B F9 41 B8*/
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v_NET_ReceiveDatagram = p_NET_ReceiveDatagram.RCast<bool (*)(int, netpacket_s*, bool)>(); /*E8 ?? ?? ?? ?? 84 C0 75 35 48 8B D3*/
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v_NET_SendDatagram = p_NET_SendDatagram.RCast<int (*)(SOCKET, void*, int, v_netadr_t*, bool)>(); /*48 89 5C 24 08 48 89 6C 24 10 48 89 74 24 18 57 41 56 41 57 48 81 EC ?? 05 00 00*/
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v_NET_PrintFunc = p_NET_PrintFunc.RCast<void(*)(const char*)>(); /*48 89 54 24 10 4C 89 44 24 18 4C 89 4C 24 20 C3 48*/
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}
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virtual void GetVar(void) const
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{
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g_pNetKey = g_GameDll.FindString("client:NetEncryption_NewKey").FindPatternSelf("48 8D ? ? ? ? ? 48 3B", CMemory::Direction::UP, 300).ResolveRelativeAddressSelf(0x3, 0x7).GetPtr();
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}
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virtual void GetCon(void) const { }
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virtual void Attach(void) const { }
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virtual void Detach(void) const { }
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};
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///////////////////////////////////////////////////////////////////////////////
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REGISTER(VNet);
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#endif // !NETCONSOLE
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const char* NET_ErrorString(int iCode);
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