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Support PIN-required auth servers

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Kelsi 2026-02-13 00:22:01 -08:00
parent f247d53309
commit 62a49644a5
9 changed files with 271 additions and 13 deletions
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32
src/auth/auth_packets.cpp
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@ -135,18 +135,38 @@ bool LogonChallengeResponseParser::parse(network::Packet& packet, LogonChallenge
// Security flags
response.securityFlags = packet.readUInt8();
// Optional security extensions (protocol v8+)
if (response.securityFlags & 0x01) {
// PIN required: u32 pin_grid_seed + u8[16] pin_salt
response.pinGridSeed = packet.readUInt32();
for (size_t i = 0; i < response.pinSalt.size(); ++i) {
response.pinSalt[i] = packet.readUInt8();
}
}
LOG_DEBUG("Parsed LOGON_CHALLENGE response:");
LOG_DEBUG(" B size: ", response.B.size(), " bytes");
LOG_DEBUG(" g size: ", response.g.size(), " bytes");
LOG_DEBUG(" N size: ", response.N.size(), " bytes");
LOG_DEBUG(" salt size: ", response.salt.size(), " bytes");
LOG_DEBUG(" Security flags: ", (int)response.securityFlags);
if (response.securityFlags & 0x01) {
LOG_DEBUG(" PIN grid seed: ", response.pinGridSeed);
}
return true;
}
network::Packet LogonProofPacket::build(const std::vector<uint8_t>& A,
const std::vector<uint8_t>& M1) {
return build(A, M1, 0, nullptr, nullptr);
}
network::Packet LogonProofPacket::build(const std::vector<uint8_t>& A,
const std::vector<uint8_t>& M1,
uint8_t securityFlags,
const std::array<uint8_t, 16>* pinClientSalt,
const std::array<uint8_t, 20>* pinHash) {
if (A.size() != 32) {
LOG_ERROR("Invalid A size: ", A.size(), " (expected 32)");
}
@ -171,7 +191,17 @@ network::Packet LogonProofPacket::build(const std::vector<uint8_t>& A,
packet.writeUInt8(0);
// Security flags
packet.writeUInt8(0);
packet.writeUInt8(securityFlags);
if (securityFlags & 0x01) {
if (!pinClientSalt || !pinHash) {
LOG_ERROR("LOGON_PROOF: PIN flag set but PIN data missing");
} else {
// PIN: u8[16] client_salt + u8[20] pin_hash
packet.writeBytes(pinClientSalt->data(), pinClientSalt->size());
packet.writeBytes(pinHash->data(), pinHash->size());
}
}
LOG_DEBUG("Built LOGON_PROOF packet:");
LOG_DEBUG(" A size: ", A.size(), " bytes");