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Fix Classic field extraction, Warden PE patches, and auth/opcode corrections

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Update field extraction in both CREATE_OBJECT and VALUES handlers to check
specific fields (maxHealth, level, faction, etc.) before power/maxpower range
checks. In Classic 1.12.1, power indices 23-27 are adjacent to maxHealth (28),
and maxPower indices 29-33 are adjacent to level (34) and faction (35), so
range checks like "key >= powerBase && key < powerBase+7" were incorrectly
capturing those fields.

Add build-aware WoW.exe selection and runtime global patching for Warden
SYSTEM_INFO, EndScene, WorldEnables, and LastHardwareAction chains. Fix
Classic opcodes and auth session addon data format for CMaNGOS compatibility.
This commit is contained in:
Kelsi 2026-02-20 00:18:03 -08:00
parent 38ad368c82
commit e8864941dc
5 changed files with 279 additions and 49 deletions
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67
src/game/world_packets.cpp
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@ -73,26 +73,57 @@ network::Packet AuthSessionPacket::build(uint32_t build,
// Authentication hash/digest (20 bytes)
packet.writeBytes(authHash.data(), authHash.size());
// Addon info - compressed block with 0 addons
// AzerothCore format: uint32 decompressedSize + zlib compressed data
// Decompressed format: uint32 addonCount + [addons...] + uint32 clientTime
uint8_t addonData[8] = {
0, 0, 0, 0, // addon count = 0
0, 0, 0, 0 // client time = 0
};
uint32_t decompressedSize = 8;
// Addon info - compressed block
// Format differs between expansions:
// Vanilla/TBC (CMaNGOS): while-loop of {string name, uint8 flags, uint32 modulusCRC, uint32 urlCRC}
// WotLK (AzerothCore): uint32 addonCount + {string name, uint8 enabled, uint32 crc, uint32 unk} + uint32 clientTime
std::vector<uint8_t> addonData;
if (isTbc) {
// Vanilla/TBC: each addon entry = null-terminated name + uint8 flags + uint32 modulusCRC + uint32 urlCRC
// Send standard Blizzard addons that CMaNGOS anticheat expects for fingerprinting
static const char* vanillaAddons[] = {
"Blizzard_AuctionUI", "Blizzard_BattlefieldMinimap", "Blizzard_BindingUI",
"Blizzard_CombatText", "Blizzard_CraftUI", "Blizzard_GMSurveyUI",
"Blizzard_InspectUI", "Blizzard_MacroUI", "Blizzard_RaidUI",
"Blizzard_TalentUI", "Blizzard_TradeSkillUI", "Blizzard_TrainerUI"
};
static const uint32_t standardModulusCRC = 0x4C1C776D;
for (const char* name : vanillaAddons) {
// string (null-terminated)
size_t len = strlen(name);
addonData.insert(addonData.end(), reinterpret_cast<const uint8_t*>(name),
reinterpret_cast<const uint8_t*>(name) + len + 1);
// uint8 flags = 1 (enabled)
addonData.push_back(0x01);
// uint32 modulusCRC (little-endian)
addonData.push_back(static_cast<uint8_t>(standardModulusCRC & 0xFF));
addonData.push_back(static_cast<uint8_t>((standardModulusCRC >> 8) & 0xFF));
addonData.push_back(static_cast<uint8_t>((standardModulusCRC >> 16) & 0xFF));
addonData.push_back(static_cast<uint8_t>((standardModulusCRC >> 24) & 0xFF));
// uint32 urlCRC = 0
addonData.push_back(0); addonData.push_back(0);
addonData.push_back(0); addonData.push_back(0);
}
} else {
// WotLK: uint32 addonCount + entries + uint32 clientTime
// Send 0 addons
addonData = { 0, 0, 0, 0, // addonCount = 0
0, 0, 0, 0 }; // clientTime = 0
}
uint32_t decompressedSize = static_cast<uint32_t>(addonData.size());
// Compress with zlib
uLongf compressedSize = compressBound(decompressedSize);
std::vector<uint8_t> compressed(compressedSize);
int ret = compress(compressed.data(), &compressedSize, addonData, decompressedSize);
int ret = compress(compressed.data(), &compressedSize, addonData.data(), decompressedSize);
if (ret == Z_OK) {
compressed.resize(compressedSize);
// Write decompressedSize, then compressed bytes
packet.writeUInt32(decompressedSize);
packet.writeBytes(compressed.data(), compressed.size());
LOG_DEBUG("Addon info: decompressedSize=", decompressedSize,
" compressedSize=", compressedSize);
" compressedSize=", compressedSize, " addons=",
isTbc ? "12 vanilla" : "0 wotlk");
} else {
LOG_ERROR("zlib compress failed with code: ", ret);
packet.writeUInt32(0);
@ -191,16 +222,22 @@ bool AuthChallengeParser::parse(network::Packet& packet, AuthChallengeData& data
return false;
}
if (packet.getSize() < 8) {
// TBC format: just the server seed (4 bytes)
if (packet.getSize() <= 4) {
// Original vanilla/TBC format: just the server seed (4 bytes)
data.unknown1 = 0;
data.serverSeed = packet.readUInt32();
LOG_INFO("Parsed SMSG_AUTH_CHALLENGE (TBC format):");
LOG_INFO("Parsed SMSG_AUTH_CHALLENGE (TBC format, 4 bytes):");
} else if (packet.getSize() < 40) {
// Vanilla with encryption seeds (36 bytes): serverSeed + 32 bytes seeds
// No "unknown1" prefix — first uint32 IS the server seed
data.unknown1 = 0;
data.serverSeed = packet.readUInt32();
LOG_INFO("Parsed SMSG_AUTH_CHALLENGE (Classic+seeds format, ", packet.getSize(), " bytes):");
} else {
// WotLK format: unknown1 + serverSeed + encryption seeds
// WotLK format (40+ bytes): unknown1 + serverSeed + 32 bytes encryption seeds
data.unknown1 = packet.readUInt32();
data.serverSeed = packet.readUInt32();
LOG_INFO("Parsed SMSG_AUTH_CHALLENGE (WotLK format):");
LOG_INFO("Parsed SMSG_AUTH_CHALLENGE (WotLK format, ", packet.getSize(), " bytes):");
LOG_INFO(" Unknown1: 0x", std::hex, data.unknown1, std::dec);
}