Use legacy LOGON_PROOF format for auth protocol < 8

This commit is contained in:
Kelsi 2026-02-13 01:10:02 -08:00
parent dca8fcad31
commit 280c6ffa1d
6 changed files with 36 additions and 11 deletions

View file

@ -236,15 +236,20 @@ void AuthHandler::sendLogonProof() {
}
}
auto packet = LogonProofPacket::build(A, M1, securityFlags_, pinClientSaltPtr, pinHashPtr);
socket->send(packet);
// Protocol < 8 uses a shorter proof packet (no securityFlags byte).
if (clientInfo.protocolVersion < 8) {
auto packet = LogonProofPacket::buildLegacy(A, M1);
socket->send(packet);
} else {
auto packet = LogonProofPacket::build(A, M1, securityFlags_, pinClientSaltPtr, pinHashPtr);
socket->send(packet);
if (securityFlags_ & 0x04) {
// TrinityCore-style Google Authenticator token: send immediately after proof.
// Token is typically 6 digits.
const std::string token = pendingSecurityCode_;
auto tokPkt = AuthenticatorTokenPacket::build(token);
socket->send(tokPkt);
if (securityFlags_ & 0x04) {
// TrinityCore-style Google Authenticator token: send immediately after proof.
const std::string token = pendingSecurityCode_;
auto tokPkt = AuthenticatorTokenPacket::build(token);
socket->send(tokPkt);
}
}
setState(AuthState::PROOF_SENT);

View file

@ -165,6 +165,23 @@ network::Packet LogonProofPacket::build(const std::vector<uint8_t>& A,
return build(A, M1, 0, nullptr, nullptr);
}
network::Packet LogonProofPacket::buildLegacy(const std::vector<uint8_t>& A,
const std::vector<uint8_t>& M1) {
if (A.size() != 32) {
LOG_ERROR("Invalid A size: ", A.size(), " (expected 32)");
}
if (M1.size() != 20) {
LOG_ERROR("Invalid M1 size: ", M1.size(), " (expected 20)");
}
network::Packet packet(static_cast<uint16_t>(AuthOpcode::LOGON_PROOF));
packet.writeBytes(A.data(), A.size());
packet.writeBytes(M1.data(), M1.size());
for (int i = 0; i < 20; ++i) packet.writeUInt8(0); // CRC hash
packet.writeUInt8(0); // number of keys
return packet;
}
network::Packet LogonProofPacket::build(const std::vector<uint8_t>& A,
const std::vector<uint8_t>& M1,
uint8_t securityFlags,