Обновление How to play with Panorama on Community servers

[wertaS]

How to play with Panorama on Community servers
If you ever try connect to some servers you will see this error in console:

First i thought that i can just hook IVEngineClient::GetClientVersion, but no results. Then i reversed and saw that game use stored value, not that method.
So i wrote this code and it works!
Code:

1. auto engine_dll = (DWORD)GetModuleHandleA("engine.dll");
2. auto& g_iClientVersion = *(int*)(*(DWORD*)(engine_dll + 0x1B2FA9));
3. g_iClientVersion = 13638;

But then i meet another error:

But since i've worked with network messages before it was easy for me.
We should hook SendNetMsg(40 index in INetChannel), compare INetMessage name to "CCLCMsg_ClientInfo", and replace

Пожалуйста, авторизуйтесь для просмотра ссылки.

to 0x6DB42B5(dumped value in default cs:go)
Code:

1. class INetMessage
2. {
3. public:
4. virtual ~INetMessage() {};
5. virtual void SetNetChannel(void* netchan) = 0;
6. virtual void SetReliable(bool state) = 0;
7. virtual bool Process(void) = 0;
8. virtual bool ReadFromBuffer(bf_read &buffer) = 0;
9. virtual bool WriteToBuffer(bf_write &buffer) = 0;
10. virtual bool IsReliable(void) const = 0;
11. virtual int GetType(void) const = 0;
12. virtual int GetGroup(void) const = 0;
13. virtual const char *GetName(void) const = 0;
14. virtual void *GetNetChannel(void) const = 0;
15. virtual const char *ToString(void) const = 0;
16. };
17. class cnetmsg_clientinfo {
18. private:
19. char __PAD0[0x8];
20. public:
21. uint32_t send_table_crc;
22. uint32_t server_count;
23. bool is_hltv;
24. bool is_replay;
25. uint32_t friends_id;
26. };
27. class CNetMessagePB : public INetMessage, public T {};
28. using cclcmsg_clientinfo_t = CNetMessagePB<cnetmsg_clientinfo>;

And in SendNetMsg hook:
Code:

1. if (strcmp(name, "CCLCMsg_ClientInfo") == 0)
2. {
3. auto clientinfo_msg = (cclcmsg_clientinfo_t*)msg;
4. clientinfo_msg->send_table_crc = 0x6DB42B5;
5. }

But since a lot of stuff is not the same as on server we should add anti file crc check:
Code:

1. if (strcmp(name, "CCLCMsg_FileCRCCheck") == 0)
2. {
3. return false;
4. }

Thats it! Now we can easily play on community servers with new panorama UI.