Fix several exploitable bugs in the CUserCmd class. Some of these have been used to exploit/cheat in-game. Fixes contain:
- Camera position clamping (the only patch that hasn't been tested yet!)
- Weapon activity exploit, allowing player to infinitely throw ordnances, and perform other 'cheats'.
- Akimbo exploit + server crasher, allowing client to set multiple inventory weapons as active. The active weapon index bounds were also not checked, a properly crafter CUserCmd message would therefore be able to crash the server.
Note that this does not fix all issues related to the UserCmd class; further reversing and testing revealed there is more to be fixed, these fixes will get implemented with a future commit.
This commit significantly reduces output code size, and a noticeable increase in performance. Changes are:
- Removed all extraneous std::string and std::vector copy constructions; use raw pointers instead to boost performance.
- Marked simple getters in CModule inline.
- Marked several functions in CModule const.
- Slightly reordered CModule class.
- 'CMemory::CheckOpCodes' and 'CMemory::Patch' now take a const reference.
Since this file no longer gets build along with the DLL project, but as a static lib instead, the 'DEDICATED' define no longer worked, and therefore this became broken after the CMake port. The 'CURLHandleError' helper function now takes a bool determining whether or not to log the error, and the caller disables it for dedicated (dedicated should only log the error once, this happens from within the caller class).
After the CMake refactor, this became broken as the 'DEDICATED' define does not work in tier0 headers. These were the last ones; moved to the DLL project instead. This commit also fixes a bug where the command line file gets parsed twice, while there was already a global containing the args (initialized on DLL init).
* Add method for finding a substring ('CUtlString::Find').
* Add method for appending a slash ('CUtlString::AppendSlash').
* Add 'CUtlString' overload for 'CUtlString::IsEqual_CaseSensitive'.
* Add 'CUtlString' overload for 'CUtlString::IsEqual_CaseInsensitive'.
* Add optional parameter to strip trailing slashes in 'CUtlString::DirName'.
* Add optional parameter to strip trailing slashes in 'CUtlString::StripFilename'.
Properly fix the aligned memalloc singleton in the SDK; the implementation now uses a callback based approach for calling the allocator and deallocator.
Added all public headers to CMake projects, also moved some files around in the public directory. Translation units have been moved to the libraries that were responsible for implementing them, as this game is monolithic.
* All libraries have been isolated from each other, and build into separate artifacts.
* Project has been restructured to support isolating libraries.
* CCrashHandler now calls a callback on crash (setup from core/dllmain.cpp, this can be setup in any way for any project. This callback is getting called when the apllication crashes. Useful for flushing buffers before closing handles to logging files for example).
* Tier0 'CoreMsgV' function now calls a callback sink, which could be set by the user (currently setup to the SDK's internal logger in core/dllmain.cpp).
TODO:
* Add a batch file to autogenerate all projects.
* Add support for dedicated server.
* Add support for client dll.
Bugs:
* Game crashes on the title screen after the UI script compiler has finished (root cause unknown).
* Curl error messages are getting logged twice for the dedicated server due to the removal of all "DEDICATED" preprocessor directives to support isolating projects. This has to be fixed properly!
Properly decouple squirrel and game code. This makes it easier to reverse engineer more of this squirrel system, and to compile them as individual libraries later on when moving to CMake to significantly decrease compile times.
* modsystem v2 initial commit
* call CModSystem::Init
* clean up custom cvar value handling
* add mod script compiling support
* add error check to script rson loading
yes this error is a duplicate but this one exits the game
* fix typo
* fix compile error
Fix duplicate call to CUtlMemory<T>::Purge. This was caused due to an extra call performed in the destructor of CUtlVector and CUtlString. Disassembling the DLL after performing these changes revealed the destructor of the allocator is only getting called once now; the issue has been fixed.
Rebuilds SV_BroadcastVoiceData with an additional check of "sv_alltalk" cvar to disable team checking, allowing for servers to enable global voice chat
* Decoding and encoding is done into a single buffer, from raw buffers to avoid extraneous copies.
* Added base class holding all core logic for encoding, decoding, receiving and processing of the RCON protocol. This code was initially identical between all implementations of RCON, deduplicating this avoids bugs.
* Added more sophisticated error handling, stop right away when decoding for example fails.
* Added ability to have more than one active authenticated net console on the server. Controlled by cvar 'sv_rcon_maxconnections' (default 1).
* Max packet size for accepted, but not authenticated sockets is now controled by cvar 'sv_rcon_maxpacketsize' (default 1024).
* Fixed 'connect' socket bug preventing connection to IPv4 addresses, by making the method used by the listen socket and connect socket configurator shared (dual stack was disabled on connect, but not on listen).
* Removed extraneous member from the 'CSocketCreator' class, this member was a copy of the 'netadr_t' input, but nothing ever was done with it.
* Implemented a proper initializer for the mask tables (s_nMaskTable has been removed).
* Implemented write methods in 'bf_write'. There are still some missing methods; there have to be added in later.
* Documented most functions.
