func (http *HTTP) handleHTTP(
conn *httpConnectionData,
m *message,
tcptuple *common.TcpTuple,
dir uint8,
) {
m.TCPTuple = *tcptuple
m.Direction = dir
m.CmdlineTuple = procs.ProcWatcher.FindProcessesTuple(tcptuple.IpPort())
http.hideHeaders(m)
if m.IsRequest {
if isDebug {
debugf("Received request with tuple: %s", m.TCPTuple)
}
conn.requests.append(m)
} else {
if isDebug {
debugf("Received response with tuple: %s", m.TCPTuple)
}
conn.responses.append(m)
http.correlate(conn)
}
}
func (dns *Dns) handleDns(m *DnsMessage, tcpTuple *common.TcpTuple, dir uint8, data []byte, decodedData *layers.DNS) {
dnsTuple := DnsTupleFromIpPort(&m.Tuple, TransportTcp, decodedData.ID)
m.CmdlineTuple = procs.ProcWatcher.FindProcessesTuple(tcpTuple.IpPort())
m.Data = decodedData
m.Length = len(data)
if decodedData.QR == Query {
dns.receivedDnsRequest(&dnsTuple, m)
} else /* Response */ {
dns.receivedDnsResponse(&dnsTuple, m)
}
}
func handleMysql(mysql *Mysql, m *MysqlMessage, tcptuple *common.TcpTuple,
dir uint8, raw_msg []byte) {
m.TcpTuple = *tcptuple
m.Direction = dir
m.CmdlineTuple = procs.ProcWatcher.FindProcessesTuple(tcptuple.IpPort())
m.Raw = raw_msg
if m.IsRequest {
mysql.receivedMysqlRequest(m)
} else {
mysql.receivedMysqlResponse(m)
}
}
func (http *HTTP) handleHTTP(m *message, tcptuple *common.TcpTuple,
dir uint8, rawMsg []byte) {
m.TCPTuple = *tcptuple
m.Direction = dir
m.CmdlineTuple = procs.ProcWatcher.FindProcessesTuple(tcptuple.IpPort())
m.Raw = rawMsg
if m.IsRequest {
http.receivedHTTPRequest(m)
} else {
http.receivedHTTPResponse(m)
}
}
func (dns *Dns) handleDns(conn *dnsConnectionData, tcpTuple *common.TcpTuple, decodedData *mkdns.Msg, dir uint8) {
message := conn.Data[dir].message
dnsTuple := DnsTupleFromIpPort(&message.Tuple, TransportTcp, decodedData.Id)
message.CmdlineTuple = procs.ProcWatcher.FindProcessesTuple(tcpTuple.IpPort())
message.Data = decodedData
message.Length += DecodeOffset
if decodedData.Response {
dns.receivedDnsResponse(&dnsTuple, message)
conn.prevRequest = nil
} else /* Query */ {
dns.receivedDnsRequest(&dnsTuple, message)
conn.prevRequest = message
}
}
func (redis *Redis) handleRedis(
conn *redisConnectionData,
m *redisMessage,
tcptuple *common.TcpTuple,
dir uint8,
) {
m.TcpTuple = *tcptuple
m.Direction = dir
m.CmdlineTuple = procs.ProcWatcher.FindProcessesTuple(tcptuple.IpPort())
if m.IsRequest {
conn.requests.append(m) // wait for response
} else {
conn.responses.append(m)
redis.correlate(conn)
}
}
func (mongodb *Mongodb) handleMongodb(
conn *mongodbConnectionData,
m *mongodbMessage,
tcptuple *common.TcpTuple,
dir uint8,
) {
m.TcpTuple = *tcptuple
m.Direction = dir
m.CmdlineTuple = procs.ProcWatcher.FindProcessesTuple(tcptuple.IpPort())
if m.IsResponse {
debugf("MongoDB response message")
mongodb.onResponse(conn, m)
} else {
debugf("MongoDB request message")
mongodb.onRequest(conn, m)
}
}
func (amqp *Amqp) handleAmqp(m *AmqpMessage, tcptuple *common.TcpTuple, dir uint8) {
if amqp.mustHideCloseMethod(m) {
return
}
debugf("A message is ready to be handled")
m.TcpTuple = *tcptuple
m.Direction = dir
m.CmdlineTuple = procs.ProcWatcher.FindProcessesTuple(tcptuple.IpPort())
if m.Method == "basic.publish" {
amqp.handlePublishing(m)
} else if m.Method == "basic.deliver" || m.Method == "basic.return" ||
m.Method == "basic.get-ok" {
amqp.handleDelivering(m)
} else if m.IsRequest == true {
amqp.handleAmqpRequest(m)
} else if m.IsRequest == false {
amqp.handleAmqpResponse(m)
}
}
func (thrift *Thrift) messageComplete(tcptuple *common.TcpTuple, dir uint8,
stream *ThriftStream, priv *thriftPrivateData) {
var flush bool = false
if stream.message.IsRequest {
logp.Debug("thrift", "Thrift request message: %s", stream.message.Method)
if !thrift.CaptureReply {
// enable the stream in the other direction to get the reply
stream_rev := priv.Data[1-dir]
if stream_rev != nil {
stream_rev.skipInput = false
}
}
} else {
logp.Debug("thrift", "Thrift response message: %s", stream.message.Method)
if !thrift.CaptureReply {
// disable stream in this direction
stream.skipInput = true
// and flush current data
flush = true
}
}
// all ok, go to next level
stream.message.TcpTuple = *tcptuple
stream.message.Direction = dir
stream.message.CmdlineTuple = procs.ProcWatcher.FindProcessesTuple(tcptuple.IpPort())
if stream.message.FrameSize == 0 {
stream.message.FrameSize = uint32(stream.parseOffset - stream.message.start)
}
thrift.handleThrift(stream.message)
// and reset message
stream.PrepareForNewMessage(flush)
}
// Parse processes a TCP packet. Return nil if connection
// state shall be dropped (e.g. parser not in sync with tcp stream)
func (cassandra *cassandra) Parse(
pkt *protos.Packet,
tcptuple *common.TcpTuple, dir uint8,
private protos.ProtocolData,
) protos.ProtocolData {
defer logp.Recover("Parse cassandra exception")
conn := cassandra.ensureConnection(private)
st := conn.streams[dir]
if st == nil {
st = &stream{}
st.parser.init(&cassandra.parserConfig, func(msg *message) error {
return conn.trans.onMessage(tcptuple.IpPort(), dir, msg)
})
conn.streams[dir] = st
}
if err := st.parser.feed(pkt.Ts, pkt.Payload); err != nil {
debugf("%v, dropping TCP stream for error in direction %v.", err, dir)
cassandra.onDropConnection(conn)
return nil
}
return conn
}
func (mc *Memcache) memcacheParseTCP(
tcpConn *tcpConnectionData,
pkt *protos.Packet,
tcptuple *common.TcpTuple,
dir uint8,
) *tcpConnectionData {
// assume we are in sync
stream := tcpConn.Streams[dir]
if stream == nil {
stream = mc.newStream(tcptuple)
tcpConn.Streams[dir] = stream
}
debug("add payload to stream(%p): %v", stream, dir)
if err := stream.Append(pkt.Payload); err != nil {
debug("%v, dropping TCP streams", err)
mc.pushAllTCPTrans(tcpConn.connection)
tcpConn.drop(dir)
return nil
}
if tcpConn.connection == nil {
tcpConn.connection = &connection{}
} else {
stopped := tcpConn.connection.timer.Stop()
if !stopped {
// timer was stopped by someone else, create new connection
tcpConn.connection = &connection{}
}
}
conn := tcpConn.connection
for stream.Buf.Total() > 0 {
debug("stream(%p) try to content", stream)
msg, err := stream.parse(pkt.Ts)
if err != nil {
// parsing error, drop tcp stream and retry with next segement
debug("Ignore Memcache message, drop tcp stream: %v", err)
mc.pushAllTCPTrans(conn)
tcpConn.drop(dir)
return nil
}
if msg == nil {
// wait for more data
break
}
stream.reset()
tuple := tcptuple.IpPort()
err = mc.onTCPMessage(conn, tuple, dir, msg)
if err != nil {
logp.Warn("error processing memcache message: %s", err)
}
}
conn.timer = time.AfterFunc(mc.tcpTransTimeout, func() {
debug("connection=%p timed out", conn)
mc.pushAllTCPTrans(conn)
})
return tcpConn
}