////////////////////////////////////////////////////
// handle a new packet on the stream
void EQPacketStream::handlePacket(EQUDPIPPacketFormat& packet)
{
emit numPacket(++m_packetCount, (int)m_streamid);
// Only accept packets if we've been initialized unless they are
// initialization packets!
if (packet.getNetOpCode() != OP_SessionRequest &&
packet.getNetOpCode() != OP_SessionResponse &&
! m_sessionKey)
{
#if (defined(PACKET_PROCESS_DIAG) && (PACKET_PROCESS_DIAG > 1)) || defined(PACKET_SESSION_DIAG)
seqDebug("discarding packet %s:%d ==>%s:%d netopcode=%04x size=%d. Session not initialized. Need to zone to start picking up packets. Session tracking %s.",
(const char*)packet.getIPv4SourceA(), packet.getSourcePort(),
(const char*)packet.getIPv4DestA(), packet.getDestPort(),
packet.getNetOpCode(), packet.payloadLength(),
(m_session_tracking_enabled == 2 ? "locked on" :
(m_session_tracking_enabled == 1 ? "enabled" : "disabled")));
#endif
return;
}
emit rawPacket(packet.payload(), packet.payloadLength(), m_dir,
packet.getNetOpCode());
processPacket(packet, false); // false = isn't subpacket
// if the cache isn't empty, then process it.
if (!m_cache.empty())
processCache();
}
////////////////////////////////////////////////////
// handle a new packet on the stream
void EQPacketStream::handlePacket(EQUDPIPPacketFormat& packet)
{
emit numPacket(++m_packetCount, (int)m_streamid);
// Only accept packets if we've been initialized unless they are
// initialization packets!
if (packet.getNetOpCode() != OP_SessionRequest &&
packet.getNetOpCode() != OP_SessionResponse &&
! m_sessionKey)
{
#if (defined(PACKET_PROCESS_DIAG) && (PACKET_PROCESS_DIAG > 1)) || (defined(PACKET_SESSION_DIAG) && PACKET_SESSION_DIAG > 1)
seqDebug("discarding packet %s:%d ==>%s:%d netopcode=%04x size=%d. Session not initialized. Need to zone to start picking up packets. Session tracking %s.",
(const char*)packet.getIPv4SourceA(), packet.getSourcePort(),
(const char*)packet.getIPv4DestA(), packet.getDestPort(),
packet.getNetOpCode(), packet.payloadLength(),
(m_session_tracking_enabled == 2 ? "locked on" :
(m_session_tracking_enabled == 1 ? "enabled" : "disabled")));
#endif
return;
}
// Decode the packet first
if (! packet.decode(m_maxLength))
{
seqWarn("Packet decode failed for stream %s (%d), op %04x, flags %02x packet dropped.",
EQStreamStr[m_streamid], m_streamid, packet.getNetOpCode(),
packet.getFlags());
return;
}
#ifdef PACKET_DECODE_DIAG
else if (packet.hasFlags())
{
seqDebug("Successful decode for stream %s (%d), op %04x, flags %02x.",
EQStreamStr[m_streamid], m_streamid, packet.getNetOpCode(),
packet.getFlags());
}
#endif
// Raw packet
emit rawPacket(packet.rawPayload(), packet.rawPayloadLength(), m_dir,
packet.getNetOpCode());
processPacket(packet, false); // false = isn't subpacket
// if the cache isn't empty, then process it.
if (!m_cache.empty())
processCache();
}
////////////////////////////////////////////////////
// handle a new packet on the stream
void EQPacketStream::handlePacket(EQUDPIPPacketFormat& packet)
{
emit numPacket(++m_packetCount, (int)m_streamid);
// Packet is ours now. Logging needs to know this later on.
packet.setSessionKey(getSessionKey());
// Only accept packets if we've been initialized unless they are
// initialization packets!
if (packet.getNetOpCode() != OP_SessionRequest &&
packet.getNetOpCode() != OP_SessionResponse &&
! m_sessionKey)
{
#if (defined(PACKET_PROCESS_DIAG) && (PACKET_PROCESS_DIAG > 1)) || (defined(PACKET_SESSION_DIAG) && PACKET_SESSION_DIAG > 1)
seqDebug("discarding packet %s:%d ==>%s:%d netopcode=%04x size=%d. Session not initialized. Need to zone to start picking up packets. Session tracking %s.",
(const char*)packet.getIPv4SourceA(), packet.getSourcePort(),
(const char*)packet.getIPv4DestA(), packet.getDestPort(),
packet.getNetOpCode(), packet.payloadLength(),
(m_session_tracking_enabled == 2 ? "locked on" :
(m_session_tracking_enabled == 1 ? "enabled" : "disabled")));
#endif
return;
}
// Only accept packets that correspond to our latched client port, if
// it is set. This helps filter out multiple sessions on the same physical
// host when two eq clients zone at the same time. The first one will win.
if (m_sessionClientPort != 0 &&
((dir() == DIR_Server && m_sessionClientPort != packet.getDestPort()) ||
(dir() == DIR_Client && m_sessionClientPort != packet.getSourcePort())))
{
#if (defined(PACKET_PROCESS_DIAG) && (PACKET_PROCESS_DIAG > 1)) || (defined(PACKET_SESSION_DIAG) && PACKET_SESSION_DIAG > 1)
seqDebug("discarding packet %s:%d ==>%s:%d netopcode=%04x size=%d. Multiple sessions on the same box? Ignoring all but one of them. Latched client port %d. Session tracking %s.",
(const char*)packet.getIPv4SourceA(), packet.getSourcePort(),
(const char*)packet.getIPv4DestA(), packet.getDestPort(),
packet.getNetOpCode(), packet.payloadLength(),
m_sessionClientPort,
(m_session_tracking_enabled == 2 ? "locked on" :
(m_session_tracking_enabled == 1 ? "enabled" : "disabled")));
#endif
return;
}
// Only accept packets that pass the EQ protocol-level CRC check. This helps
// weed out non-EQ packets that we might see.
#ifdef APPLY_CRC_CHECK
if (packet.hasCRC())
{
uint16_t calcedCRC = calculateCRC(packet);
if (calcedCRC != packet.crc())
{
seqWarn("INVALID PACKET: Bad CRC [%s:%d -> %s:%d] netOp %04x seq %04x len %d crc (%04x != %04x)",
(const char*)packet.getIPv4SourceA(), packet.getSourcePort(),
(const char*)packet.getIPv4DestA(), packet.getDestPort(),
packet.getNetOpCode(), packet.arqSeq(), packet.getUDPPayloadLength(),
packet.crc(), calcedCRC);
return;
}
}
#endif /* APPLY_CRC_CHECK */
// Decode the packet first
if (! packet.decode(m_maxLength))
{
seqWarn("Packet decode failed for stream %s (%d), op %04x, flags %02x packet dropped.",
EQStreamStr[m_streamid], m_streamid, packet.getNetOpCode(),
packet.getFlags());
return;
}
#ifdef PACKET_DECODE_DIAG
else if (packet.hasFlags())
{
seqDebug("Successful decode for stream %s (%d), op %04x, flags %02x.",
EQStreamStr[m_streamid], m_streamid, packet.getNetOpCode(),
packet.getFlags());
}
#endif
// Raw packet
emit rawPacket(packet.rawPayload(), packet.rawPayloadLength(), m_dir,
packet.getNetOpCode());
processPacket(packet, false); // false = isn't subpacket
// if the cache isn't empty, then process it.
if (!m_cache.empty())
processCache();
}
void EQPacket::dispatchPacket(EQUDPIPPacketFormat& packet)
{
// Detect client by world server port traffic...
if (m_detectingClient && packet.getSourcePort() == WorldServerGeneralPort)
{
m_ip = packet.getIPv4DestA();
m_client_addr = packet.getIPv4DestN();
m_detectingClient = false;
emit clientChanged(m_client_addr);
seqInfo("Client Detected: %s", (const char*)m_ip);
}
else if (m_detectingClient && packet.getDestPort() == WorldServerGeneralPort)
{
m_ip = packet.getIPv4SourceA();
m_client_addr = packet.getIPv4SourceN();
m_detectingClient = false;
emit clientChanged(m_client_addr);
seqInfo("Client Detected: %s", (const char*)m_ip);
}
// Dispatch based on known streams
if ((packet.getDestPort() == ChatServerPort) ||
(packet.getSourcePort() == ChatServerPort))
{
// Drop chat server traffic
return;
}
else if ((packet.getDestPort() == WorldServerChatPort) ||
(packet.getSourcePort() == WorldServerChatPort))
{
// Drop cross-server chat traffic
return;
}
else if ((packet.getDestPort() == WorldServerChat2Port) ||
(packet.getSourcePort() == WorldServerChat2Port))
{
// Drop email and cross-game chat traffic
return;
}
else if (((packet.getDestPort() >= LoginServerMinPort) &&
(packet.getDestPort() <= LoginServerMaxPort)) ||
(packet.getSourcePort() >= LoginServerMinPort) &&
(packet.getSourcePort() <= LoginServerMaxPort))
{
// Drop login server traffic
return;
}
else if (packet.getDestPort() == WorldServerGeneralPort ||
packet.getSourcePort() == WorldServerGeneralPort)
{
// World server traffic. Dispatch it.
if (packet.getIPv4SourceN() == m_client_addr)
{
m_client2WorldStream->handlePacket(packet);
}
else
{
m_world2ClientStream->handlePacket(packet);
}
}
else
{
// Anything else we assume is zone server traffic.
if (packet.getIPv4SourceN() == m_client_addr)
{
m_client2ZoneStream->handlePacket(packet);
}
else
{
m_zone2ClientStream->handlePacket(packet);
}
}
} /* end dispatchPacket() */
