mirror of
https://github.com/Mauler125/r5sdk.git
synced 2025-02-09 19:15:03 +01:00
b753295a49
* Dedicated SDK now supports ASLR enabled executables. * Complete removal of CEngineClient on the dedicated server. * Complete removal of gHLClient and g_pHLClient on the dedicated server. * Performance improvements for the dedicated server frame loop. * ConVar 'CVCallback_t' structure rebuild. * Reduced overhead throughout SDK.
242 lines
8.8 KiB
C++
242 lines
8.8 KiB
C++
//=============================================================================//
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//
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// Purpose: Net system utilities
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//
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//=============================================================================//
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#include "core/stdafx.h"
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#include "engine/net.h"
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#ifndef NETCONSOLE
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#include "core/logdef.h"
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#include "tier1/cvar.h"
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#include "vstdlib/completion.h"
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#include "mathlib/color.h"
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#include "engine/sys_utils.h"
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#include "engine/net.h"
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#include "engine/net_chan.h"
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#ifndef CLIENT_DLL
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#include "engine/baseclient.h"
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#endif // !CLIENT_DLL
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#endif // !NETCONSOLE
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#ifndef NETCONSOLE
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//-----------------------------------------------------------------------------
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// Purpose: shutdown netchannel
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//-----------------------------------------------------------------------------
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void NET_ShutDown(void* thisptr, const char* szReason, std::uint8_t a1, char a2)
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{
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#if !defined (GAMEDLL_S0) || !defined (GAMEDLL_S1) // !TEMP UNTIL CHOSTSTATE IS BUILD AGNOSTIC! //
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_DownloadPlaylists_f_CompletionFunc(); // Re-load playlist from disk after getting disconnected from the server.
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#endif // !GAMEDLL_S0 || !GAMEDLL_S1
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v_NET_Shutdown(thisptr, szReason, a1, a2);
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}
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//-----------------------------------------------------------------------------
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// Purpose: hook and log the receive datagram
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//-----------------------------------------------------------------------------
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bool NET_ReceiveDatagram(int iSocket, netpacket_s* pInpacket, bool bRaw)
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{
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bool result = v_NET_ReceiveDatagram(iSocket, pInpacket, bRaw);
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if (result)
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{
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// Log received packet data.
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HexDump("[+] NET_ReceiveDatagram", 0, &pInpacket->data[NULL], pInpacket->wiresize);
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}
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return result;
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}
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//-----------------------------------------------------------------------------
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// Purpose: hook and log the send datagram
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//-----------------------------------------------------------------------------
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void* NET_SendDatagram(SOCKET s, const char* szPayload, int iLenght, int nFlags)
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{
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void* result = v_NET_SendDatagram(s, szPayload, iLenght, nFlags);
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if (result)
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{
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// Log transmitted packet data.
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HexDump("[+] NET_SendDatagram", 0, szPayload, iLenght);
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}
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return result;
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}
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//-----------------------------------------------------------------------------
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// Purpose: sets the user specified encryption key
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// Input : *svNetKey -
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//-----------------------------------------------------------------------------
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void NET_SetKey(const string& svNetKey)
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{
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g_szNetKey.clear();
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g_szNetKey = svNetKey;
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DevMsg(eDLL_T::ENGINE, "______________________________________________________________\n");
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DevMsg(eDLL_T::ENGINE, "] NET_KEY ----------------------------------------------------\n");
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DevMsg(eDLL_T::ENGINE, "] BASE64: %s%s%s\n", g_svGreyB.c_str(), g_szNetKey.c_str(), g_svReset.c_str());
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DevMsg(eDLL_T::ENGINE, "--------------------------------------------------------------\n");
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v_NET_SetKey(g_pNetKey, g_szNetKey.c_str());
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}
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//-----------------------------------------------------------------------------
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// Purpose: calculates and sets the encryption key
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//-----------------------------------------------------------------------------
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void NET_GenerateKey()
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{
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g_szNetKey.clear();
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net_userandomkey->SetValue(1);
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BCRYPT_ALG_HANDLE hAlgorithm;
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if (BCryptOpenAlgorithmProvider(&hAlgorithm, L"RNG", 0, 0) < 0)
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{
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Error(eDLL_T::ENGINE, "Failed to open rng algorithm\n");
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return;
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}
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unsigned char pBuffer[0x10u];
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if (BCryptGenRandom(hAlgorithm, pBuffer, 0x10u, 0) < 0)
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{
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Error(eDLL_T::ENGINE, "Failed to generate random data\n");
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return;
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}
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for (int i = 0; i < 0x10u; i++)
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{
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g_szNetKey += pBuffer[i];
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}
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g_szNetKey = Base64Encode(g_szNetKey);
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DevMsg(eDLL_T::ENGINE, "______________________________________________________________\n");
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DevMsg(eDLL_T::ENGINE, "] NET_KEY ----------------------------------------------------\n");
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DevMsg(eDLL_T::ENGINE, "] BASE64: %s%s%s\n", g_svGreyB.c_str(), g_szNetKey.c_str(), g_svReset.c_str());
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DevMsg(eDLL_T::ENGINE, "--------------------------------------------------------------\n");
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v_NET_SetKey(g_pNetKey, g_szNetKey.c_str());
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}
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//-----------------------------------------------------------------------------
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// Purpose: hook and log the client's signonstate to the console
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//-----------------------------------------------------------------------------
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void NET_PrintFunc(const char* fmt, ...)
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{
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static char buf[1024];
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va_list args;
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va_start(args, fmt);
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vsnprintf(buf, sizeof(buf), fmt, args);
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buf[sizeof(buf) - 1] = 0;
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va_end(args);
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DevMsg(eDLL_T::CLIENT, "%s", buf);
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}
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//-----------------------------------------------------------------------------
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// Purpose: disconnect the client and shutdown netchannel
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//-----------------------------------------------------------------------------
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void NET_DisconnectClient(CBaseClient* pClient, int nIndex, const char* szReason, uint8_t unk1, char unk2)
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{
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#ifndef CLIENT_DLL
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if (!pClient || std::strlen(szReason) == NULL || !pClient->GetNetChan())
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{
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return;
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}
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v_NET_Shutdown(pClient->GetNetChan(), szReason, unk1, unk2); // Shutdown netchan.
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pClient->SetNetChan(nullptr); // Null netchan.
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CBaseClient_Clear(pClient); // Reset CClient instance for client.
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g_bIsPersistenceVarSet[nIndex] = false; // Reset Persistence var.
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#endif // !CLIENT_DLL
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}
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#endif // !NETCONSOLE
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//-----------------------------------------------------------------------------
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// Purpose: returns the WSA error code
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//-----------------------------------------------------------------------------
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const char* NET_ErrorString(int iCode)
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{
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switch (iCode)
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{
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case WSAEINTR : return "WSAEINTR";
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case WSAEBADF : return "WSAEBADF";
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case WSAEACCES : return "WSAEACCES";
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case WSAEDISCON : return "WSAEDISCON";
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case WSAEFAULT : return "WSAEFAULT";
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case WSAEINVAL : return "WSAEINVAL";
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case WSAEMFILE : return "WSAEMFILE";
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case WSAEWOULDBLOCK : return "WSAEWOULDBLOCK";
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case WSAEINPROGRESS : return "WSAEINPROGRESS";
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case WSAEALREADY : return "WSAEALREADY";
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case WSAENOTSOCK : return "WSAENOTSOCK";
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case WSAEDESTADDRREQ : return "WSAEDESTADDRREQ";
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case WSAEMSGSIZE : return "WSAEMSGSIZE";
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case WSAEPROTOTYPE : return "WSAEPROTOTYPE";
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case WSAENOPROTOOPT : return "WSAENOPROTOOPT";
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case WSAEPROTONOSUPPORT: return "WSAEPROTONOSUPPORT";
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case WSAESOCKTNOSUPPORT: return "WSAESOCKTNOSUPPORT";
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case WSAEOPNOTSUPP : return "WSAEOPNOTSUPP";
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case WSAEPFNOSUPPORT : return "WSAEPFNOSUPPORT";
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case WSAEAFNOSUPPORT : return "WSAEAFNOSUPPORT";
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case WSAEADDRINUSE : return "WSAEADDRINUSE";
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case WSAEADDRNOTAVAIL : return "WSAEADDRNOTAVAIL";
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case WSAENETDOWN : return "WSAENETDOWN";
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case WSAENETUNREACH : return "WSAENETUNREACH";
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case WSAENETRESET : return "WSAENETRESET";
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case WSAECONNABORTED : return "WSWSAECONNABORTEDAEINTR";
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case WSAECONNRESET : return "WSAECONNRESET";
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case WSAENOBUFS : return "WSAENOBUFS";
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case WSAEISCONN : return "WSAEISCONN";
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case WSAENOTCONN : return "WSAENOTCONN";
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case WSAESHUTDOWN : return "WSAESHUTDOWN";
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case WSAETOOMANYREFS : return "WSAETOOMANYREFS";
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case WSAETIMEDOUT : return "WSAETIMEDOUT";
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case WSAECONNREFUSED : return "WSAECONNREFUSED";
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case WSAELOOP : return "WSAELOOP";
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case WSAENAMETOOLONG : return "WSAENAMETOOLONG";
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case WSAEHOSTDOWN : return "WSAEHOSTDOWN";
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case WSAEPROCLIM : return "WSAEPROCLIM";
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case WSASYSNOTREADY : return "WSASYSNOTREADY";
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case WSAVERNOTSUPPORTED: return "WSAVERNOTSUPPORTED";
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case WSANOTINITIALISED : return "WSANOTINITIALISED";
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case WSAHOST_NOT_FOUND : return "WSAHOST_NOT_FOUND";
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case WSATRY_AGAIN : return "WSATRY_AGAIN";
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case WSANO_RECOVERY : return "WSANO_RECOVERY";
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case WSANO_DATA : return "WSANO_DATA";
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default : return "UNKNOWN_ERROR";
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}
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}
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#ifndef NETCONSOLE
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///////////////////////////////////////////////////////////////////////////////
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void NET_Attach()
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{
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DetourAttach((LPVOID*)&v_NET_PrintFunc, &NET_PrintFunc);
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#ifndef DEDICATED
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DetourAttach((LPVOID*)&v_NET_Shutdown, &NET_ShutDown);
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#endif
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}
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void NET_Detach()
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{
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DetourDetach((LPVOID*)&v_NET_PrintFunc, &NET_PrintFunc);
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#ifndef DEDICATED
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DetourDetach((LPVOID*)&v_NET_Shutdown, &NET_ShutDown);
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#endif
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}
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void NET_Trace_Attach()
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{
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DetourAttach((LPVOID*)&v_NET_ReceiveDatagram, &NET_ReceiveDatagram);
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DetourAttach((LPVOID*)&v_NET_SendDatagram, &NET_SendDatagram);
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}
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void NET_Trace_Detach()
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{
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DetourDetach((LPVOID*)&v_NET_ReceiveDatagram, &NET_ReceiveDatagram);
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DetourDetach((LPVOID*)&v_NET_SendDatagram, &NET_SendDatagram);
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}
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///////////////////////////////////////////////////////////////////////////////
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string g_szNetKey = "WDNWLmJYQ2ZlM0VoTid3Yg==";
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uintptr_t g_pNetKey = g_mGameDll.FindString("client:NetEncryption_NewKey").FindPatternSelf("48 8D ? ? ? ? ? 48 3B", CMemory::Direction::UP, 300).ResolveRelativeAddressSelf(0x3, 0x7).GetPtr();
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#endif // !NETCONSOLE
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