r5sdk/r5dev/engine/server/vengineserver_impl.h
Kawe Mazidjatari 00e79268d7 Fix infinite memalloc exploit in NET_SetConVar
Reported by Wanderer. Don't allow the creation of new ConVar entries in CClient::m_ConVars after the initial creation.
2023-09-16 16:18:18 +02:00

72 lines
2.4 KiB
C++

#pragma once
#include "public/edict.h"
#include "public/eiface.h"
/* ==== CVENGINESERVER ================================================================================================================================================== */
inline CMemory p_IVEngineServer__PersistenceAvailable;
inline bool(*IVEngineServer__PersistenceAvailable)(void* entidx, int clientidx);
inline bool* m_bIsDedicated = nullptr;
///////////////////////////////////////////////////////////////////////////////
struct ServerPlayer_t
{
ServerPlayer_t(void)
{
Reset();
}
inline void Reset(void)
{
m_flCurrentNetProcessTime = 0.0;
m_flLastNetProcessTime = 0.0;
m_flStringCommandQuotaTimeStart = 0.0;
m_nStringCommandQuotaCount = NULL;
m_bInitialConVarsSet = false;
}
double m_flCurrentNetProcessTime;
double m_flLastNetProcessTime;
double m_flStringCommandQuotaTimeStart;
int m_nStringCommandQuotaCount;
bool m_bInitialConVarsSet;
};
extern ServerPlayer_t g_ServerPlayer[MAX_PLAYERS];
class CVEngineServer : public IVEngineServer
{
public:
static bool PersistenceAvailable(void* entidx, int clientidx);
// Implementation in GameDLL.
};
extern CVEngineServer* g_pEngineServer;
extern IVEngineServer* g_pEngineServerVFTable;
///////////////////////////////////////////////////////////////////////////////
class HVEngineServer : public IDetour
{
virtual void GetAdr(void) const
{
LogConAdr("CVEngineServer::`vftable'", reinterpret_cast<uintptr_t>(g_pEngineServerVFTable));
LogFunAdr("CVEngineServer::PersistenceAvailable", p_IVEngineServer__PersistenceAvailable.GetPtr());
LogVarAdr("m_bIsDedicated", reinterpret_cast<uintptr_t>(m_bIsDedicated)); // !TODO: part of CServer!
}
virtual void GetFun(void) const
{
p_IVEngineServer__PersistenceAvailable = g_GameDll.FindPatternSIMD("3B 15 ?? ?? ?? ?? 7D 33");
IVEngineServer__PersistenceAvailable = p_IVEngineServer__PersistenceAvailable.RCast<bool (*)(void*, int)>();
}
virtual void GetVar(void) const
{
CMemory pEngineServerVFTable = g_GameDll.GetVirtualMethodTable(".?AVCVEngineServer@@", 0);
g_pEngineServerVFTable = pEngineServerVFTable.RCast<CVEngineServer*>();
m_bIsDedicated = pEngineServerVFTable.WalkVTableSelf(3).DerefSelf().ResolveRelativeAddress(0x3, 0x7).RCast<bool*>();
}
virtual void GetCon(void) const { }
virtual void Attach(void) const;
virtual void Detach(void) const;
};
///////////////////////////////////////////////////////////////////////////////