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Fix conflict with extensions using SteamWorks (#1531)

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We were accidentally changing a process-wide global variable when trying to fetch a working ISteamGameServer interface.

Co-Authored-By: komashchenko <komashchenko@users.noreply.github.com>
This commit is contained in:
Vladimir 2021-07-18 02:01:24 +03:00 committed by GitHub
parent 86af9601bd
commit f708842e09
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 45 additions and 66 deletions
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105
extensions/cstrike/rulesfix.cpp
View File

@ -39,6 +39,9 @@ bool bPatched = false;
RulesFix rulesfix;
ISteamGameServer *(*SteamAPI_SteamGameServer)();
void (*SteamAPI_ISteamGameServer_SetKeyValue)(ISteamGameServer *self, const char *pKey, const char *pValue);
SH_DECL_HOOK1_void(IServerGameDLL, GameServerSteamAPIActivated, SH_NOATTRIB, 0, bool);
RulesFix::RulesFix() :
@ -59,7 +62,7 @@ bool SetMTUMax(int iValue)
{
if (!g_pGameConf->GetAddress("MaxMTU", (void **)&m_pMaxMTU))
{
g_pSM->LogMessage(myself, "[CStrike] Failed to locate NET_SendPacket signature.");
g_pSM->LogError(myself, "[CStrike] Failed to locate NET_SendPacket signature.");
return false;
}
@ -77,6 +80,39 @@ bool SetMTUMax(int iValue)
void RulesFix::OnLoad()
{
ILibrary *pLibrary = libsys->OpenLibrary(
#if defined ( PLATFORM_WINDOWS )
"steam_api.dll"
#elif defined( PLATFORM_LINUX )
"libsteam_api.so"
#elif defined( PLATFORM_APPLE )
"libsteam_api.dylib"
#else
#error Unsupported platform
#endif
, nullptr, 0);
if (pLibrary != nullptr)
{
const char *pSteamGameServerFuncName = "SteamAPI_SteamGameServer_v013";
const char *pSetKeyValueFuncName = "SteamAPI_ISteamGameServer_SetKeyValue";
// When will hl2sdk-csgo be updated the SteamWorks SDK, change this to export.
SteamAPI_SteamGameServer = reinterpret_cast<ISteamGameServer *(*)()>(pLibrary->GetSymbolAddress(pSteamGameServerFuncName));
SteamAPI_ISteamGameServer_SetKeyValue = reinterpret_cast<void (*)(ISteamGameServer *self, const char *pKey, const char *pValue)>(pLibrary->GetSymbolAddress(pSetKeyValueFuncName));
if(SteamAPI_SteamGameServer == nullptr)
{
g_pSM->LogError(myself, "[CStrike] Failed to get %s function", pSteamGameServerFuncName);
}
if(SteamAPI_ISteamGameServer_SetKeyValue == nullptr)
{
g_pSM->LogError(myself, "[CStrike] Failed to get %s function", pSetKeyValueFuncName);
}
pLibrary->CloseLibrary();
}
host_rules_show = g_pCVar->FindVar("host_rules_show");
if (host_rules_show)
{
@ -149,25 +185,20 @@ static void OnConVarChanged(IConVar *var, const char *pOldValue, float flOldValu
void RulesFix::OnNotifyConVarChanged(ConVar *pVar)
{
if (!bPatched)
if (!bPatched || !SteamAPI_SteamGameServer || !SteamAPI_ISteamGameServer_SetKeyValue)
return;
if (m_Steam.SteamMasterServerUpdater())
ISteamGameServer *pSteamClientGameServer = SteamAPI_SteamGameServer();
if (pSteamClientGameServer)
{
if (pVar->IsFlagSet(FCVAR_PROTECTED))
{
if (!pVar->GetString()[0])
{
m_Steam.SteamMasterServerUpdater()->SetKeyValue(pVar->GetName(), "0");
}
else
{
m_Steam.SteamMasterServerUpdater()->SetKeyValue(pVar->GetName(), "1");
}
SteamAPI_ISteamGameServer_SetKeyValue(pSteamClientGameServer, pVar->GetName(), !pVar->GetString()[0] ? "0" : "1");
}
else
{
m_Steam.SteamMasterServerUpdater()->SetKeyValue(pVar->GetName(), pVar->GetString());
SteamAPI_ISteamGameServer_SetKeyValue(pSteamClientGameServer, pVar->GetName(), pVar->GetString());
}
}
}
@ -176,61 +207,11 @@ void RulesFix::Hook_GameServerSteamAPIActivated(bool bActivated)
{
if (bActivated)
{
FixSteam();
m_Steam.Init();
g_pCVar->InstallGlobalChangeCallback(OnConVarChanged);
OnSteamServersConnected(nullptr);
}
else
{
g_pCVar->RemoveGlobalChangeCallback(OnConVarChanged);
m_Steam.Clear();
}
}
void RulesFix::FixSteam()
{
if (!g_pSteamClientGameServer)
{
void *(*pGSInternalCreateAddress)(const char *) = nullptr;
void *(*pInternalCreateAddress)(const char *) = nullptr;
// CS:GO currently uses the old name, but will use the new name when they update to a
// newer Steamworks SDK. Stay compatible.
const char *pGSInternalFuncName = "SteamGameServerInternal_CreateInterface";
const char *pInternalFuncName = "SteamInternal_CreateInterface";
ILibrary *pLibrary = libsys->OpenLibrary(
#if defined ( PLATFORM_WINDOWS )
"steam_api.dll"
#elif defined( PLATFORM_LINUX )
"libsteam_api.so"
#elif defined( PLATFORM_APPLE )
"libsteam_api.dylib"
#else
#error Unsupported platform
#endif
, nullptr, 0);
if (pLibrary != nullptr)
{
if (pGSInternalCreateAddress == nullptr)
{
pGSInternalCreateAddress = reinterpret_cast<void *(*)(const char *)>(pLibrary->GetSymbolAddress(pGSInternalFuncName));
}
if (pInternalCreateAddress == nullptr)
{
pInternalCreateAddress = reinterpret_cast<void *(*)(const char *)>(pLibrary->GetSymbolAddress(pInternalFuncName));
}
pLibrary->CloseLibrary();
}
if (pGSInternalCreateAddress != nullptr)
g_pSteamClientGameServer = reinterpret_cast<ISteamClient *>((*pGSInternalCreateAddress)(STEAMCLIENT_INTERFACE_VERSION));
if (g_pSteamClientGameServer == nullptr && pInternalCreateAddress != nullptr)
g_pSteamClientGameServer = reinterpret_cast<ISteamClient *>((*pInternalCreateAddress)(STEAMCLIENT_INTERFACE_VERSION));
}
}

6
extensions/cstrike/rulesfix.h
View File

@ -32,6 +32,7 @@
#pragma once
#include <steam_gameserver.h>
class ConVar;
class RulesFix
@ -43,10 +44,7 @@ public:
void OnNotifyConVarChanged(ConVar *pVar);
void Hook_GameServerSteamAPIActivated(bool bActivated);
private:
void FixSteam();
private:
CSteamGameServerAPIContext m_Steam;
STEAM_GAMESERVER_CALLBACK(RulesFix, OnSteamServersConnected, SteamServersConnected_t, m_OnSteamServersConnected);
};
extern RulesFix rulesfix;
extern RulesFix rulesfix;