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Merge pull request #243 from Brentdevent/dvars

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Make unnamed dvars more accessible
This commit is contained in:
Maurice Heumann 2023-02-27 09:59:09 +01:00 committed by GitHub
commit 43a8b794c6
4 changed files with 4114 additions and 10 deletions
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3989
data/lookup_tables/dvar_lookup_table.csv Normal file
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File diff suppressed because it is too large Load Diff

124
src/client/component/dvars.cpp
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@ -14,13 +14,108 @@ namespace dvars
namespace
{
bool initial_config_read = false;
utils::hook::detour dvar_register_new_hook;
utils::hook::detour dvar_set_variant_hook;
utils::hook::detour set_config_dvar_hook;
utils::hook::detour for_each_name_match_hook;
utils::hook::detour get_debug_name_hook;
void dvar_for_each_name_stub(void (*callback)(const char*))
{
for (int i = 0; i < *game::g_dvarCount; ++i)
{
const auto offset = game::is_server() ? 136 : 160;
const auto* dvar = reinterpret_cast<game::dvar_t*>(&game::s_dvarPool[offset * i]);
if ((!game::Com_SessionMode_IsMode(game::MODE_COUNT) ||
!game::Dvar_IsSessionModeBaseDvar(dvar)) &&
(dvar->flags & 0x8000) == 0)
{
if (dvar->debugName)
{
callback(dvar->debugName);
}
}
}
}
void dvar_for_each_name_client_num_stub(int localClientNum, void (*callback)(int, const char*))
{
for (int i = 0; i < *game::g_dvarCount; ++i)
{
const auto offset = game::is_server() ? 136 : 160;
const auto* dvar = reinterpret_cast<game::dvar_t*>(&game::s_dvarPool[offset * i]);
if ((!game::Com_SessionMode_IsMode(game::MODE_COUNT) ||
!game::Dvar_IsSessionModeBaseDvar(dvar)) &&
(dvar->flags & 0x8000) == 0)
{
if (dvar->debugName)
{
callback(localClientNum, dvar->debugName);
}
}
}
}
void read_dvar_name_hashes_data(std::unordered_map<std::uint32_t, std::string>& map)
{
const auto path = game::get_appdata_path() / "data" / "lookup_tables" / "dvar_lookup_table.csv";
std::string data;
if (!utils::io::read_file(path, &data))
{
printf("Failed to read Dvar lookup table\n");
return;
}
std::istringstream stream(data);
std::string line;
while (std::getline(stream, line, '\n'))
{
if (utils::string::starts_with(line, "//"))
{
continue;
}
const auto separator = line.find(',');
if (separator == std::string::npos)
{
continue;
}
const auto debug_name = line.substr(separator + 1);
if (!debug_name.empty())
{
std::istringstream hash_string(line.substr(0, separator));
std::uint32_t hash_value;
hash_string >> hash_value;
map.emplace(hash_value, debug_name);
}
}
}
void copy_dvar_names_to_pool()
{
std::unordered_map<std::uint32_t, std::string> dvar_hash_name_map;
read_dvar_name_hashes_data(dvar_hash_name_map);
for (int i = 0; i < *game::g_dvarCount; ++i)
{
const auto offset = game::is_server() ? 136 : 160;
auto* dvar = reinterpret_cast<game::dvar_t*>(&game::s_dvarPool[offset * i]);
if (!dvar->debugName)
{
const auto it = dvar_hash_name_map.find(dvar->name);
if (it != dvar_hash_name_map.end())
{
dvar->debugName = game::CopyString(it->second.data());
}
}
}
}
const std::string get_config_file_path()
{
@ -79,14 +174,29 @@ namespace dvars
}
}
class component final : public client_component
class component final : public generic_component
{
public:
void post_unpack() override
{
scheduler::once(read_archive_dvars, scheduler::pipeline::main);
if (!game::is_server())
{
scheduler::once(read_archive_dvars, scheduler::pipeline::main);
dvar_set_variant_hook.create(0x1422C9A90_g, dvar_set_variant_stub);
dvar_set_variant_hook.create(0x1422C9A90_g, dvar_set_variant_stub);
// Show all known dvars in console
utils::hook::jump(0x1422BD890_g, dvar_for_each_name_stub);
utils::hook::jump(0x1422BD7E0_g, dvar_for_each_name_client_num_stub);
}
scheduler::once(copy_dvar_names_to_pool, scheduler::pipeline::main);
// All dvars are recognized as command
utils::hook::nop(game::select(0x14215297A, 0x14050949A), 2);
// Show all dvars in dvarlist command
utils::hook::nop(game::select(0x142152C87, 0x140509797), 6);
// Show all dvars in dvardump command
utils::hook::nop(game::select(0x142152659, 0x140509179), 6);
}
};
}

1
src/client/game/structs.hpp
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@ -736,6 +736,7 @@ namespace game
struct dvar_t
{
dvarStrHash_t name;
char _pad[0x4];
const char* debugName;
const char* description;
unsigned int flags;

10
src/client/game/symbols.hpp
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@ -78,7 +78,11 @@ namespace game
WEAK symbol<TLSData*()> Sys_GetTLS{0x142184210, 0x140525EB0};
WEAK symbol<TLSData*()> Sys_IsDatabaseReady{0x1421844C0};
// Unnamed
WEAK symbol<const char* (const char* name)> CopyString{0x1422ACC80, 0x14056BD70};
// Dvar
WEAK symbol<bool(const dvar_t* dvar)> Dvar_IsSessionModeBaseDvar{0x1422C2E00, 0x140576890};
WEAK symbol<dvar_t*(const char* dvarName)> Dvar_FindVar{0x1422BD730, 0x140575540};
WEAK symbol<unsigned int(const char* str)> Dvar_GenerateHash{0x14133DBF0};
WEAK symbol<dvar_t*(unsigned int hash)> Dvar_FindMalleableVar{0x1422BD6A0};
@ -93,8 +97,6 @@ namespace game
WEAK symbol<void(const char* dvarName, const char* string, bool createIfMissing)> Dvar_SetFromStringByName{
0x1422C7F60
};
WEAK symbol<char> s_dvarPool{0x157AC8220};
WEAK symbol<int> g_dvarCount{0x157AC81CC};
// UI
WEAK symbol<void(bool frontend)> UI_CoD_Init{0x141F298B0, 0x0};
@ -136,7 +138,6 @@ namespace game
WEAK symbol<const char* (char* str)> I_CleanStr{0x1422E9C10, 0x140580E80};
// Variables
WEAK symbol<cmd_function_s> cmd_functions{0x15689FF58, 0x14946F860};
WEAK symbol<CmdArgs> sv_cmd_args{0x15689CE30, 0x14944C740};
@ -148,6 +149,9 @@ namespace game
WEAK symbol<Join> s_join{0x15574C640};
WEAK symbol<char> s_dvarPool{0x157AC8220, 0x14A3CB620};
WEAK symbol<int> g_dvarCount{0x157AC81CC, 0x14A3CB5FC};
namespace s_wcd
{
WEAK symbol<HWND> codLogo{0x157E77A50, 0x14A640BC0};