Merge branch 'main' of https://github.com/JariKCoding/boiii

README.md

@@ -7,11 +7,11 @@
 
 # BOIII ☄️
 
-Reverse engineering and analysis of Call of Duty: Black Ops 3.
+An attempt at reverse engineering and analyzing of Call of Duty: Black Ops 3.
 
 <img src="https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcQeSXYzQITJrcjiifN1nqX1fsVE7VwLZ3vl2g&usqp=CAU">
 
-## Roadmap
+## Technical Features
 
 - [x] Steam API Emulation
 - [x] Steam Integrity Bypass
@@ -24,6 +24,8 @@ Reverse engineering and analysis of Call of Duty: Black Ops 3.
 - [x] P2P multiplayer
 - [x] Dedicated Servers
 
+Check out the <a href="https://github.com/momo5502/boiii/issues?q=is%3Aissue+is%3Aclosed+reason%3Acompleted">closed issues</a> for more gameplay related features and fixes that have been added!
+
 ## Writeups & Articles
 
 - <a href="https://momo5502.com/posts/2022-11-17-reverse-engineering-integrity-checks-in-black-ops-3/">Reverse engineering integrity checks in Black Ops 3</a>

data/gamesettings/mp/gamesettings_escort.cfg

@@ -0,0 +1,26 @@
+gametype_setting    timelimit                       5
+gametype_setting    scorelimit                      0
+gametype_setting    roundscorelimit                 1
+gametype_setting    roundwinlimit                   2
+gametype_setting    roundlimit                      2
+gametype_setting    preroundperiod                  10
+gametype_setting    teamCount                       2
+
+gametype_setting    shutdownDamage                  3
+gametype_setting    bootTime                        5
+gametype_setting    rebootTime                      15
+gametype_setting    rebootPlayers                   0
+gametype_setting    movePlayers                     1
+gametype_setting    robotSpeed                      1
+gametype_setting    robotShield                     0
+
+
+gametype_setting    scoreHeroPowerGainFactor        0.788	//Score earned towards Hero Weapons and Abilities are multiplied by this factor 
+gametype_setting    scoreHeroPowerTimeFactor        0.788
+
+gametype_setting    spawntraptriggertime            5
+
+gametype_setting    disableVehicleSpawners          1
+
+gametype_setting    gameAdvertisementRuleTimeLeft   3.5
+gametype_setting    gameAdvertisementRuleRound      3

src/client/component/auth.cpp

@@ -108,6 +108,8 @@ namespace auth
 		}
 
 		int send_connect_data_stub(const game::netsrc_t sock, game::netadr_t* adr, const char* data, int len)
+		{
+			try
 			{
 				std::string buffer{};
 
@@ -124,6 +126,13 @@ namespace auth
 
 				return reinterpret_cast<decltype(&send_connect_data_stub)>(0x142173600_g)(sock, adr, data, len);
 			}
+			catch (std::exception& e)
+			{
+				printf("Error: %s\n", e.what());
+			}
+
+			return 0;
+		}
 
 		void handle_connect_packet(const game::netadr_t& target, const network::data_view& data)
 		{

src/client/component/dedicated_patches.cpp

@@ -104,6 +104,9 @@ namespace dedicated_patches
 			utils::hook::jump(0x14052F0F5_g, 0x14052F139_g);
 
 			utils::hook::call(0x1402853D7_g, sv_get_player_xuid_stub); // PlayerCmd_GetXuid
+
+			// Stop executing default_dedicated.cfg & language_settings.cfg
+			utils::hook::set<uint8_t>(0x1405063C0_g, 0xC3);
 		}
 	};
 }

src/client/component/game_settings.cpp

@@ -0,0 +1,133 @@
+#include <std_include.hpp>
+#include "loader/component_loader.hpp"
+#include "game/game.hpp"
+
+#include <utils/hook.hpp>
+#include <utils/string.hpp>
+#include <utils/io.hpp>
+
+namespace gamesettings
+{
+	namespace
+	{
+		// <name, path>
+		std::unordered_map<std::string, std::string> game_settings_files;
+
+		std::string get_game_settings_name(const std::vector<std::string>& sub_strings)
+		{
+			if (sub_strings.size() > 2)
+			{
+				return sub_strings[sub_strings.size() - 2] + '/' + sub_strings[sub_strings.size() - 1];
+			}
+
+			return {};
+		}
+
+		std::string get_game_settings_path(const std::string& name)
+		{
+			const auto itr = game_settings_files.find(name);
+			return (itr == game_settings_files.end()) ? std::string() : itr->second;
+		}
+
+		void search_game_settings_folder(const std::string& game_settings_dir)
+		{
+			if (!utils::io::directory_exists(game_settings_dir))
+			{
+				return;
+			}
+
+			const auto files = utils::io::list_files(game_settings_dir, true);
+
+			for (const auto& path : files)
+			{
+				if (!std::filesystem::is_directory(path))
+				{
+					auto sub_strings = utils::string::split(path.generic_string(), '/');
+					game_settings_files.insert_or_assign(get_game_settings_name(sub_strings), path.generic_string());
+				}
+			}
+		}
+
+		bool has_game_settings_file_on_disk(const char* path)
+		{
+			if (!path)
+			{
+				return false;
+			}
+
+			const auto sub_strings = utils::string::split(path, '/');
+			const auto game_settings_name = get_game_settings_name(sub_strings);
+
+			return !get_game_settings_path(game_settings_name).empty();
+		}
+
+		void cmd_exec_stub(utils::hook::assembler& a)
+		{
+			const auto exec_from_fastfile = a.newLabel();
+			const auto exec_from_disk = a.newLabel();
+
+			a.pushad64();
+
+			a.mov(rcx, r10);
+			a.call_aligned(has_game_settings_file_on_disk);
+			a.cmp(rax, 1);
+;
+			a.popad64();
+
+			a.jnz(exec_from_fastfile);
+
+			a.bind(exec_from_disk);
+			a.jmp(game::select(0x1420ED087, 0x1404F855E));
+
+			a.bind(exec_from_fastfile);
+			a.lea(rdx, ptr(rsp, (game::is_server() ? 0x30 : 0x40)));
+			a.jmp(game::select(0x1420ED007, 0x1404F853F));
+		}
+
+		int read_file_stub(const char* qpath, void** buffer)
+		{
+			const auto sub_strings = utils::string::split(qpath, '/');
+			const auto game_settings_name = get_game_settings_name(sub_strings);
+
+			std::string gamesettings_data;
+			utils::io::read_file(get_game_settings_path(game_settings_name), &gamesettings_data);
+
+			if (!gamesettings_data.empty())
+			{
+				++(*game::fs_loadStack);
+
+				auto len = static_cast<int>(gamesettings_data.length());
+				auto buf = game::FS_AllocMem(len + 1);
+
+				*buffer = buf;
+				gamesettings_data.copy(reinterpret_cast<char*>(*buffer), len);
+				buf[len] = '\0';
+
+				return len;
+			}
+
+			return utils::hook::invoke<int>(game::select(0x1422A48D0, 0x140564F70), qpath, buffer);
+		}
+
+		void search_gamesettings_files_on_disk()
+		{
+			const utils::nt::library host{};
+
+			search_game_settings_folder((game::get_appdata_path() / "data/gamesettings").string());
+			search_game_settings_folder((host.get_folder() / "boiii/gamesettings").string());
+		}
+	}
+
+	struct component final : generic_component
+	{
+		void post_unpack() override
+		{
+			search_gamesettings_files_on_disk();
+
+			utils::hook::call(game::select(0x1420ED0A1, 0x1404F857D), read_file_stub);
+			utils::hook::jump(game::select(0x1420ED002, 0x1404F853A), utils::hook::assemble(cmd_exec_stub));
+		}
+	};
+};
+
+REGISTER_COMPONENT(gamesettings::component)

src/client/component/network.cpp

@@ -256,6 +256,38 @@ namespace network
 		return a.port == b.port && a.addr == b.addr;
 	}
 
+	int net_sendpacket_stub(const game::netsrc_t sock, const int length, const char* data, const game::netadr_t* to)
+	{
+		printf("Sending packet of size: %X\n", length);
+
+		if (to->type != game::NA_RAWIP)
+		{
+			printf("NET_SendPacket: bad address type\n");
+			return 0;
+		}
+
+		const auto s = *game::ip_socket;
+		if (!s || sock > game::NS_MAXCLIENTS)
+		{
+			return 0;
+		}
+
+		sockaddr_in address{};
+		address.sin_family = AF_INET;
+		address.sin_port = htons(to->port);
+		address.sin_addr.s_addr = htonl(((to->ipv4.c | ((to->ipv4.b | (to->ipv4.a << 8)) << 8)) << 8) | to->ipv4.d);
+
+		const auto size = static_cast<size_t>(length);
+
+		std::vector<char> buffer{};
+		buffer.resize(size + 1);
+		buffer[0] = static_cast<char>((static_cast<uint32_t>(sock) & 0xF) | ((to->localNetID & 0xF) << 4));
+		memcpy(buffer.data() + 1, data, size);
+
+		return sendto(s, buffer.data(), static_cast<int>(buffer.size()), 0, reinterpret_cast<sockaddr*>(&address),
+		              sizeof(address));
+	}
+
 	struct component final : generic_component
 	{
 		void post_unpack() override
@@ -268,6 +300,9 @@ namespace network
 			// skip checksum verification
 			utils::hook::set<uint8_t>(game::select(0x14233249E, 0x140596F2E), 0); // don't add checksum to packet
 
+			// Recreate NET_SendPacket to increase max packet size
+			utils::hook::jump(game::select(0x1423323B0, 0x140596E40), net_sendpacket_stub);
+
 			utils::hook::set<uint32_t>(game::select(0x14134C6E0, 0x14018E574), 5);
 			// set initial connection state to challenging
 

src/client/component/profile_infos.cpp

@@ -100,6 +100,10 @@ namespace profile_infos
 					}
 					else
 					{
+#ifdef DEV_BUILD
+						printf("Erasing profile info: %llX\n", i->first);
+#endif
+
 						i = profiles.erase(i);
 					}
 				}
@@ -126,6 +130,10 @@ namespace profile_infos
 			return;
 		}
 
+#ifdef DEV_BUILD
+		printf("Adding profile info: %llX\n", user_id);
+#endif
+
 		profile_mapping.access([&](profile_map& profiles)
 		{
 			profiles[user_id] = info;
@@ -202,7 +210,17 @@ namespace profile_infos
 			if (profile_entry != profiles.end())
 			{
 				result = profile_entry->second;
+
+#ifdef DEV_BUILD
+				printf("Requesting profile info: %llX - good\n", user_id);
+#endif
 			}
+#ifdef DEV_BUILD
+			else
+			{
+				printf("Requesting profile info: %llX - bad\n", user_id);
+			}
+#endif
 
 			return result;
 		});

src/client/game/structs.hpp

@@ -689,6 +689,7 @@ namespace game
 			byte color[4];
 			const dvar_t* indirect[3];
 		} value;
+
 		uint64_t encryptedValue;
 	};
 
@@ -699,26 +700,31 @@ namespace game
 			int stringCount;
 			const char** strings;
 		} enumeration;
+
 		struct
 		{
 			int min;
 			int max;
 		} integer;
+
 		struct
 		{
 			int64_t min;
 			int64_t max;
 		} integer64;
+
 		struct
 		{
 			uint64_t min;
 			uint64_t max;
 		} unsignedInt64;
+
 		struct
 		{
 			float min;
 			float max;
 		} value;
+
 		struct
 		{
 			vec_t min;
@@ -1028,7 +1034,7 @@ namespace game
 		JoinResult joinResult;
 	};
 
-
+#ifdef __cplusplus
 	namespace hks
 	{
 		struct lua_State;
@@ -1051,7 +1057,7 @@ namespace game
 
 		typedef size_t hksSize;
 		typedef void* (*lua_Alloc)(void*, void*, size_t, size_t);
-		typedef hksInt32(*lua_CFunction)(lua_State*);
+		typedef hksInt32 (*lua_CFunction)(lua_State*);
 
 		struct GenericChunkHeader
 		{
@@ -1108,11 +1114,14 @@ namespace game
 			TNUMBER = 0x3,
 			TSTRING = 0x4,
 			TTABLE = 0x5,
-			TFUNCTION = 0x6,  // idk
+			TFUNCTION = 0x6,
+			// idk
 			TUSERDATA = 0x7,
 			TTHREAD = 0x8,
-			TIFUNCTION = 0x9, // Lua function
+			TIFUNCTION = 0x9,
-			TCFUNCTION = 0xA, // C function
+			// Lua function
+			TCFUNCTION = 0xA,
+			// C function
 			TUI64 = 0xB,
 			TSTRUCT = 0xC,
 			NUM_TYPE_OBJECTS = 0xE,
@@ -1294,7 +1303,7 @@ namespace game
 			int _m_isHksGlobalMemoTestingMode;
 			HksCompilerSettings_BytecodeSharingFormat m_bytecodeSharingFormat;
 			HksCompilerSettings_IntLiteralOptions m_enableIntLiterals;
-			int(*m_debugMap)(const char*, int);
+			int (*m_debugMap)(const char*, int);
 		};
 
 		enum HksBytecodeSharingMode : __int64
@@ -1504,7 +1513,7 @@ namespace game
 			void* m_profiler;
 			RuntimeProfileData m_runProfilerData;
 			HksCompilerSettings m_compilerSettings;
-			int(*m_panicFunction)(lua_State*);
+			int (*m_panicFunction)(lua_State*);
 			void* m_luaplusObjectList;
 			int m_heapAssertionFrequency;
 			int m_heapAssertionCount;
@@ -1533,6 +1542,7 @@ namespace game
 			HksError m_error;
 		};
 	}
+#endif
 
 	typedef uint32_t ScrVarCanonicalName_t;
 
@@ -1556,19 +1566,23 @@ namespace game
 		char __pad4[0x29DAC];
 	};
 
+#ifdef __cplusplus
 	static_assert(sizeof(client_s) == 0xE5110);
 
 	static_assert(offsetof(game::client_s, address) == 0x2C);
 	static_assert(offsetof(game::client_s, xuid) == 0x55C8);
 	static_assert(offsetof(game::client_s, guid) == 0xBB354);
 	static_assert(offsetof(game::client_s, bIsTestClient) == 0xBB360);
+#endif
 
 	struct client_s_cl : client_s
 	{
 		char __pad1_0[0x60];
 	};
 
+#ifdef __cplusplus
 	static_assert(sizeof(client_s_cl) == 0xE5170);
+#endif
 
 	enum scriptInstance_t
 	{
@@ -1598,7 +1612,9 @@ namespace game
 		unsigned char __pad1[0x2A0];
 	};
 
+#ifdef __cplusplus
 	static_assert(sizeof(gentity_s) == 0x4F8);
+#endif
 
 	enum workshop_type
 	{
@@ -1623,7 +1639,9 @@ namespace game
 		workshop_type type;
 	};
 
+#ifdef __cplusplus
 	static_assert(sizeof(workshop_data) == 0x4C8);
+#endif
 
 	struct DDLMember
 	{
@@ -1695,7 +1713,7 @@ namespace game
 	};
 
 	struct DDLContext;
-	typedef void(* DDLWriteCB)(DDLContext*, void*);
+	typedef void (* DDLWriteCB)(DDLContext*, void*);
 
 	struct DDLContext
 	{

src/client/game/symbols.hpp

@@ -35,6 +35,7 @@ namespace game
 	WEAK symbol<void(int localClientNum, eModes fromMode, eModes toMode, uint32_t flags)> Com_SwitchMode{
 		0x14214A4D0
 	};
+	WEAK symbol<const char*(const char* fullpath)> Com_LoadRawTextFile{0x1420F61B0};
 
 	WEAK symbol<void(int localClientNum, const char* text)> Cbuf_AddText{0x1420EC010, 0x1404F75B0};
 	WEAK symbol<void(int localClientNum, ControllerIndex_t controllerIndex, const char* buffer)> Cbuf_ExecuteBuffer{
@@ -184,6 +185,9 @@ namespace game
 	WEAK symbol<void(const char* text_in)> SV_Cmd_TokenizeString{0x1420EF130, 0x1404FA6C0};
 	WEAK symbol<void()> SV_Cmd_EndTokenizedString{0x1420EF0E0, 0x1404FA670};
 
+	// FS
+	WEAK symbol<char*(int bytes)> FS_AllocMem{0x1422AC9F0, 0x14056C340};
+
 	// Utils
 	WEAK symbol<const char*(char* str)> I_CleanStr{0x1422E9050, 0x140580E80};
 
@@ -202,6 +206,8 @@ namespace game
 	WEAK symbol<char> s_dvarPool{0x157AC6220, 0x14A3CB620};
 	WEAK symbol<int> g_dvarCount{0x157AC61CC, 0x14A3CB5FC};
 
+	WEAK symbol<int> fs_loadStack{0x157A65310, 0x14A39C650};
+
 	// Client and dedi struct size differs :(
 	WEAK symbol<client_s_cl*> svs_clients_cl{0x1576F9318, 0};
 	WEAK symbol<client_s*> svs_clients{0x0, 0x14A178E98};