[Guide] Handling Client Networking @ Any State Process

WolfgangNeverDie · 10/05/2021, 15:40

Hi! I want to parse packet in login screen. Does anyone know the offset to hook?
Thanks

~~Laag#82~~ · 10/05/2021, 16:04

Quote:

Originally Posted by WolfgangNeverDie

Hi! I want to parse packet in login screen. Does anyone know the offset to hook?
Thanks

Hello,

this 0086d2a0 & 0086bfc0

PHP Code:


			
0085fc60    CPSCharacterSelect::OnNetMsg

00863ad0    CPSQuickStart::OnNetMsg

0086bfc0    CPSTitle::OnNetMsg

0046fd80    CObjChild::OnNetMsg

0084cab0    CPSMission::OnNetMsg

0084df10    CPSCharacterCreateChina::OnNetMsg

00851a80    CPSCharacterCreateEurope::OnNetMsg

008645e0    CPSRestart::OnNetMsg

0086d2a0    CPSVersionCheck::OnNetMsg

Special thanks to: florian0

WolfgangNeverDie · 10/05/2021, 16:20

Quote:

Originally Posted by khaleed2010

Hello,

this 0086d2a0 & 0086bfc0

PHP Code:

0085fc60 CPSCharacterSelect::OnNetMsg 00863ad0 CPSQuickStart::OnNetMsg 0086bfc0 CPSTitle::OnNetMsg 0046fd80 CObjChild::OnNetMsg 0084cab0 CPSMission::OnNetMsg 0084df10 CPSCharacterCreateChina::OnNetMsg 00851a80 CPSCharacterCreateEurope::OnNetMsg 008645e0 CPSRestart::OnNetMsg 0086d2a0 CPSVersionCheck::OnNetMsg

Special thanks to: florian0

Thank's you!

But bro! Can you explain more?
2 offsets need to replace. idk

Code:

BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID lpReserved)
{
	switch (dwReason)
	{
	case DLL_PROCESS_ATTACH:
	{
		replaceAddr(0x00DD440C, addr_from_this(&CPSMission::OnPacketRecv));
		DisableThreadLibraryCalls(hInstance);
	}
	break;
	}
	return TRUE;
}

Code:

int CPSMission::OnPacketRecv(MsgStreamBuffer* MsgBuffer)
{
	return reinterpret_cast<int(__thiscall*)(CPSMission*, MsgStreamBuffer*)>(0x0084CAB0)(this, MsgBuffer);
}

~~Laag#82~~ · 10/05/2021, 17:41

Quote:

Originally Posted by WolfgangNeverDie

Thank's you!

But bro! Can you explain more?
2 offsets need to replace. idk

Code:

BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID lpReserved)
{
	switch (dwReason)
	{
	case DLL_PROCESS_ATTACH:
	{
		replaceAddr(0x00DD440C, addr_from_this(&CPSMission::OnPacketRecv));
		DisableThreadLibraryCalls(hInstance);
	}
	break;
	}
	return TRUE;
}

Code:

int CPSMission::OnPacketRecv(MsgStreamBuffer* MsgBuffer)
{
	return reinterpret_cast<int(__thiscall*)(CPSMission*, MsgStreamBuffer*)>(0x0084CAB0)(this, MsgBuffer);
}

Code:

replaceAddr(0x00dd92d4, addr_from_this(&CPSTitle::OnPacketRecv));

Code:

return reinterpret_cast<int(__thiscall*)(CPSTitle*, MsgStreamBuffer*)>(0x0086bfc0)(this, MsgBuffer);

WolfgangNeverDie · 10/05/2021, 18:54

Quote:

Originally Posted by khaleed2010

Code:

replaceAddr(0x00dd92d4, addr_from_this(&CPSTitle::OnPacketRecv));

Code:

return reinterpret_cast<int(__thiscall*)(CPSTitle*, MsgStreamBuffer*)>(0x0086bfc0)(this, MsgBuffer);

Oh yeah. Thank's youuuuuu!

WolfgangNeverDie · 10/16/2021, 06:42

@

Bro! How to handle the outgoing packets? (Client -> Server)

~~Laag#82~~ · 10/17/2021, 08:29

Quote:

Originally Posted by WolfgangNeverDie

@ Bro! How to handle the outgoing packets? (Client -> Server)

What you mean

WolfgangNeverDie · 10/17/2021, 12:05

Quote:

Originally Posted by khaleed2010

What you mean

I want to read some packet from client-side (7021 7074 etc) and re-build it