add

client.go

@@ -9,13 +9,14 @@ import (
 	"time"
 )
 
-func NewClient(addr string, server string, target string, timeout int, sproto int, rproto int, catch int, key int, tcpmode bool) (*Client, error) {
+func NewClient(addr string, server string, target string, timeout int, sproto int, rproto int, catch int, key int,
+	tcpmode int) (*Client, error) {
 
 	var ipaddr *net.UDPAddr
 	var tcpaddr *net.TCPAddr
 	var err error
 
-	if tcpmode {
+	if tcpmode > 0 {
 		tcpaddr, err = net.ResolveTCPAddr("tcp", addr)
 		if err != nil {
 			return nil, err
@@ -59,7 +60,7 @@ type Client struct {
 	rproto                int
 	catch                 int
 	key                   int
-	tcpmode               bool
+	tcpmode               int
 	tcpmode_buffersize    int
 	tcpmode_maxwin        int
 	tcpmode_resend_timems int
@@ -129,7 +130,7 @@ func (p *Client) Run() {
 	defer conn.Close()
 	p.conn = conn
 
-	if p.tcpmode {
+	if p.tcpmode > 0 {
 		tcplistenConn, err := net.ListenTCP("tcp", p.tcpaddr)
 		if err != nil {
 			loggo.Error("Error listening for tcp packets: %s", err.Error())
@@ -150,7 +151,7 @@ func (p *Client) Run() {
 	p.localAddrToConnMap = make(map[string]*ClientConn)
 	p.localIdToConnMap = make(map[string]*ClientConn)
 
-	if p.tcpmode {
+	if p.tcpmode > 0 {
 		go p.AcceptTcp()
 	} else {
 		go p.Accept()
@@ -269,7 +270,7 @@ func (p *Client) AcceptTcpConn(conn *net.TCPConn) {
 			p.sendPacketSize += (uint64)(f.size)
 
 			sendICMP(p.id, p.sequence, *p.conn, p.ipaddrServer, p.targetAddr, clientConn.id, (uint32)(DATA), mb,
-				p.sproto, p.rproto, p.catch, p.key)
+				p.sproto, p.rproto, p.catch, p.key, p.tcpmode)
 		}
 	}
 
@@ -311,7 +312,7 @@ func (p *Client) Accept() error {
 
 		clientConn.activeTime = now
 		sendICMP(p.id, p.sequence, *p.conn, p.ipaddrServer, p.targetAddr, clientConn.id, (uint32)(DATA), bytes[:n],
-			p.sproto, p.rproto, p.catch, p.key)
+			p.sproto, p.rproto, p.catch, p.key, p.tcpmode)
 
 		p.sequence++
 
@@ -379,7 +380,7 @@ func (p *Client) Close(clientConn *ClientConn) {
 
 func (p *Client) checkTimeoutConn() {
 
-	if p.tcpmode {
+	if p.tcpmode > 0 {
 		return
 	}
 
@@ -404,7 +405,7 @@ func (p *Client) ping() {
 		now := time.Now()
 		b, _ := now.MarshalBinary()
 		sendICMP(p.id, p.sequence, *p.conn, p.ipaddrServer, p.targetAddr, "", (uint32)(PING), b,
-			p.sproto, p.rproto, p.catch, p.key)
+			p.sproto, p.rproto, p.catch, p.key, p.tcpmode)
 		loggo.Info("ping %s %s %d %d %d %d", p.addrServer, now.String(), p.sproto, p.rproto, p.id, p.sequence)
 		p.sequence++
 	}
@@ -425,7 +426,7 @@ func (p *Client) sendCatch() {
 	if p.catch > 0 {
 		for _, conn := range p.localIdToConnMap {
 			sendICMP(p.id, p.sequence, *p.conn, p.ipaddrServer, p.targetAddr, conn.id, (uint32)(CATCH), make([]byte, 0),
-				p.sproto, p.rproto, p.catch, p.key)
+				p.sproto, p.rproto, p.catch, p.key, p.tcpmode)
 			p.sequence++
 			p.sendCatchPacket++
 		}

cmd/main.go

@@ -58,7 +58,7 @@ func main() {
 	rproto := flag.Int("rproto", 0, "recv ping proto")
 	catch := flag.Int("catch", 0, "catch mode")
 	key := flag.Int("key", 0, "key")
-	tcpmode := flag.Bool("tcp", false, "tcp mode")
+	tcpmode := flag.Int("tcp", 0, "tcp mode")
 	flag.Usage = func() {
 		fmt.Printf(usage)
 	}

pingtunnel.go

@@ -6,7 +6,7 @@ import (
 	"encoding/base64"
 	"encoding/binary"
 	"encoding/hex"
-	"fmt"
+	"github.com/esrrhs/go-engine/src/loggo"
 	"golang.org/x/net/icmp"
 	"golang.org/x/net/ipv4"
 	"io"
@@ -19,6 +19,7 @@ const (
 	DATA  uint32 = 0x01010101
 	PING  uint32 = 0x02020202
 	CATCH uint32 = 0x03030303
+	FRAME uint32 = 0x04040404
 	END   uint32 = 0xAAAABBBB
 )
 
@@ -30,6 +31,7 @@ type MyMsg struct {
 	RPROTO  uint16
 	CATCH   uint16
 	KEY     uint32
+	TCPMODE uint16
 	ENDTYPE uint32
 }
 
@@ -38,7 +40,7 @@ func (p *MyMsg) Len(proto int) int {
 	if p == nil {
 		return 0
 	}
-	return 4 + p.LenString(p.ID) + p.LenString(p.TARGET) + p.LenData(p.Data) + 2 + 2 + 4 + 4
+	return 4 + p.LenString(p.ID) + p.LenString(p.TARGET) + p.LenData(p.Data) + 2 + 2 + 4 + 2 + 4
 }
 
 func (p *MyMsg) LenString(s string) int {
@@ -71,7 +73,9 @@ func (p *MyMsg) Marshal(proto int) ([]byte, error) {
 
 	binary.BigEndian.PutUint32(b[4+p.LenString(p.ID)+p.LenString(p.TARGET)+p.LenData(p.Data)+4:], uint32(p.KEY))
 
-	binary.BigEndian.PutUint32(b[4+p.LenString(p.ID)+p.LenString(p.TARGET)+p.LenData(p.Data)+8:], uint32(p.ENDTYPE))
+	binary.BigEndian.PutUint16(b[4+p.LenString(p.ID)+p.LenString(p.TARGET)+p.LenData(p.Data)+8:], uint16(p.TCPMODE))
+
+	binary.BigEndian.PutUint32(b[4+p.LenString(p.ID)+p.LenString(p.TARGET)+p.LenData(p.Data)+10:], uint32(p.ENDTYPE))
 
 	return b, nil
 }
@@ -110,7 +114,9 @@ func (p *MyMsg) Unmarshal(b []byte) error {
 
 	p.KEY = binary.BigEndian.Uint32(b[4+p.LenString(p.ID)+p.LenString(p.TARGET)+p.LenData(p.Data)+4:])
 
-	p.ENDTYPE = binary.BigEndian.Uint32(b[4+p.LenString(p.ID)+p.LenString(p.TARGET)+p.LenData(p.Data)+8:])
+	p.TCPMODE = binary.BigEndian.Uint16(b[4+p.LenString(p.ID)+p.LenString(p.TARGET)+p.LenData(p.Data)+8:])
+
+	p.ENDTYPE = binary.BigEndian.Uint32(b[4+p.LenString(p.ID)+p.LenString(p.TARGET)+p.LenData(p.Data)+10:])
 
 	return nil
 }
@@ -136,7 +142,8 @@ func (p *MyMsg) UnmarshalData(b []byte) []byte {
 }
 
 func sendICMP(id int, sequence int, conn icmp.PacketConn, server *net.IPAddr, target string,
-	connId string, msgType uint32, data []byte, sproto int, rproto int, catch int, key int) {
+	connId string, msgType uint32, data []byte, sproto int, rproto int, catch int, key int,
+	tcpmode int) {
 
 	m := &MyMsg{
 		ID:      connId,
@@ -146,6 +153,7 @@ func sendICMP(id int, sequence int, conn icmp.PacketConn, server *net.IPAddr, ta
 		RPROTO:  (uint16)(rproto),
 		CATCH:   (uint16)(catch),
 		KEY:     (uint32)(key),
+		TCPMODE: (uint16)(tcpmode),
 		ENDTYPE: END,
 	}
 
@@ -165,7 +173,7 @@ func sendICMP(id int, sequence int, conn icmp.PacketConn, server *net.IPAddr, ta
 
 	bytes, err := msg.Marshal(nil)
 	if err != nil {
-		fmt.Printf("sendICMP Marshal error %s %s\n", server.String(), err)
+		loggo.Error("sendICMP Marshal error %s %s", server.String(), err)
 		return
 	}
 
@@ -176,7 +184,7 @@ func sendICMP(id int, sequence int, conn icmp.PacketConn, server *net.IPAddr, ta
 					continue
 				}
 			}
-			fmt.Printf("sendICMP WriteTo error %s %s\n", server.String(), err)
+			loggo.Error("sendICMP WriteTo error %s %s", server.String(), err)
 		}
 		break
 	}
@@ -197,7 +205,7 @@ func recvICMP(conn icmp.PacketConn, recv chan<- *Packet) {
 					// Read timeout
 					continue
 				} else {
-					fmt.Printf("Error read icmp message %s\n", err)
+					loggo.Error("Error read icmp message %s", err)
 					continue
 				}
 			}
@@ -209,21 +217,21 @@ func recvICMP(conn icmp.PacketConn, recv chan<- *Packet) {
 		my := &MyMsg{}
 		my.Unmarshal(bytes[8:n])
 
-		if (my.TYPE != (uint32)(DATA) && my.TYPE != (uint32)(PING) && my.TYPE != (uint32)(CATCH)) ||
+		if (my.TYPE != (uint32)(DATA) && my.TYPE != (uint32)(PING) && my.TYPE != (uint32)(CATCH) && my.TYPE != (uint32)(FRAME)) ||
 			my.ENDTYPE != (uint32)(END) {
-			//fmt.Printf("processPacket diff type %s %d %d \n", my.ID, my.TYPE, my.ENDTYPE)
+			loggo.Info("processPacket diff type %s %d %d ", my.ID, my.TYPE, my.ENDTYPE)
 			continue
 		}
 
 		if my.Data == nil {
-			fmt.Printf("processPacket data nil %s\n", my.ID)
+			loggo.Info("processPacket data nil %s", my.ID)
 			return
 		}
 
 		recv <- &Packet{msgType: my.TYPE, data: my.Data, id: my.ID, target: my.TARGET,
 			src: srcaddr.(*net.IPAddr), rproto: (int)((int16)(my.RPROTO)),
 			echoId: echoId, echoSeq: echoSeq, catch: (int)((int16)(my.CATCH)),
-			key: (int)(my.KEY)}
+			key: (int)(my.KEY), tcpmode: (int)((int16)(my.TCPMODE))}
 	}
 }
 
@@ -238,6 +246,7 @@ type Packet struct {
 	echoSeq int
 	catch   int
 	key     int
+	tcpmode int
 }
 
 func UniqueId() string {

server.go

@@ -1,7 +1,7 @@
 package pingtunnel
 
 import (
-	"fmt"
+	"github.com/esrrhs/go-engine/src/loggo"
 	"golang.org/x/net/icmp"
 	"net"
 	"time"
@@ -37,6 +37,8 @@ type Server struct {
 type ServerConn struct {
 	ipaddrTarget  *net.UDPAddr
 	conn          *net.UDPConn
+	tcpaddrTarget *net.TCPAddr
+	tcpconn       *net.TCPConn
 	id            string
 	activeTime    time.Time
 	close         bool
@@ -49,7 +51,7 @@ func (p *Server) Run() {
 
 	conn, err := icmp.ListenPacket("ip4:icmp", "")
 	if err != nil {
-		fmt.Printf("Error listening for ICMP packets: %s\n", err.Error())
+		loggo.Error("Error listening for ICMP packets: %s", err.Error())
 		return
 	}
 	p.conn = conn
@@ -85,51 +87,78 @@ func (p *Server) processPacket(packet *Packet) {
 	if packet.msgType == PING {
 		t := time.Time{}
 		t.UnmarshalBinary(packet.data)
-		fmt.Printf("ping from %s %s %d %d %d\n", packet.src.String(), t.String(), packet.rproto, packet.echoId, packet.echoSeq)
+		loggo.Info("ping from %s %s %d %d %d", packet.src.String(), t.String(), packet.rproto, packet.echoId, packet.echoSeq)
 		sendICMP(packet.echoId, packet.echoSeq, *p.conn, packet.src, "", "", (uint32)(PING), packet.data,
-			packet.rproto, -1, 0, p.key)
+			packet.rproto, -1, 0, p.key, packet.tcpmode)
 		return
 	}
 
-	//fmt.Printf("processPacket %s %s %d\n", packet.id, packet.src.String(), len(packet.data))
+	loggo.Debug("processPacket %s %s %d", packet.id, packet.src.String(), len(packet.data))
 
 	now := time.Now()
 
 	id := packet.id
-	udpConn := p.localConnMap[id]
+	localConn := p.localConnMap[id]
-	if udpConn == nil {
+	if localConn == nil {
+
+		if packet.tcpmode > 0 {
+
+			addr := packet.target
+			ipaddrTarget, err := net.ResolveTCPAddr("tcp", addr)
+			if err != nil {
+				loggo.Error("Error ResolveUDPAddr for tcp addr: %s %s", addr, err.Error())
+				return
+			}
+
+			targetConn, err := net.DialTCP("tcp", nil, ipaddrTarget)
+			if err != nil {
+				loggo.Error("Error listening for tcp packets: %s", err.Error())
+				return
+			}
+
+			catchQueue := make(chan *CatchMsg, packet.catch)
+
+			localConn = &ServerConn{tcpconn: targetConn, tcpaddrTarget: ipaddrTarget, id: id, activeTime: now, close: false,
+				rproto: packet.rproto, catchQueue: catchQueue}
+
+			p.localConnMap[id] = localConn
+
+			go p.RecvTCP(localConn, id, packet.src)
+
+		} else {
 
 			addr := packet.target
 			ipaddrTarget, err := net.ResolveUDPAddr("udp", addr)
 			if err != nil {
-			fmt.Printf("Error ResolveUDPAddr for udp addr: %s %s\n", addr, err.Error())
+				loggo.Error("Error ResolveUDPAddr for udp addr: %s %s", addr, err.Error())
 				return
 			}
 
 			targetConn, err := net.DialUDP("udp", nil, ipaddrTarget)
 			if err != nil {
-			fmt.Printf("Error listening for udp packets: %s\n", err.Error())
+				loggo.Error("Error listening for udp packets: %s", err.Error())
 				return
 			}
 
-		catchQueue := make(chan *CatchMsg, 1000)
+			catchQueue := make(chan *CatchMsg, packet.catch)
 
-		udpConn = &ServerConn{conn: targetConn, ipaddrTarget: ipaddrTarget, id: id, activeTime: now, close: false,
+			localConn = &ServerConn{conn: targetConn, ipaddrTarget: ipaddrTarget, id: id, activeTime: now, close: false,
 				rproto: packet.rproto, catchQueue: catchQueue}
 
-		p.localConnMap[id] = udpConn
+			p.localConnMap[id] = localConn
 
-		go p.Recv(udpConn, id, packet.src)
+			go p.Recv(localConn, id, packet.src)
+		}
 	}
 
-	udpConn.activeTime = now
+	localConn.activeTime = now
-	udpConn.catch = packet.catch
+	localConn.catch = packet.catch
 
 	if packet.msgType == CATCH {
 		select {
-		case re := <-udpConn.catchQueue:
+		case re := <-localConn.catchQueue:
 			sendICMP(packet.echoId, packet.echoSeq, *p.conn, re.src, "", re.id, (uint32)(CATCH), re.data,
-				re.conn.rproto, -1, 0, p.key)
+				re.conn.rproto, -1, 0, p.key, packet.tcpmode)
 			p.sendCatchPacket++
 		case <-time.After(time.Duration(1) * time.Millisecond):
 		}
@@ -139,10 +168,10 @@ func (p *Server) processPacket(packet *Packet) {
 
 	if packet.msgType == DATA {
 
-		_, err := udpConn.conn.Write(packet.data)
+		_, err := localConn.conn.Write(packet.data)
 		if err != nil {
-			fmt.Printf("WriteToUDP Error %s\n", err)
+			loggo.Error("WriteToUDP Error %s", err)
-			udpConn.close = true
+			localConn.close = true
 			return
 		}
 
@@ -153,7 +182,7 @@ func (p *Server) processPacket(packet *Packet) {
 
 func (p *Server) Recv(conn *ServerConn, id string, src *net.IPAddr) {
 
-	fmt.Printf("server waiting target response %s -> %s %s\n", conn.ipaddrTarget.String(), conn.id, conn.conn.LocalAddr().String())
+	loggo.Info("server waiting target response %s -> %s %s", conn.ipaddrTarget.String(), conn.id, conn.conn.LocalAddr().String())
 
 	for {
 		bytes := make([]byte, 2000)
@@ -166,7 +195,7 @@ func (p *Server) Recv(conn *ServerConn, id string, src *net.IPAddr) {
 					// Read timeout
 					continue
 				} else {
-					fmt.Printf("ReadFromUDP Error read udp %s\n", err)
+					loggo.Error("ReadFromUDP Error read udp %s", err)
 					conn.close = true
 					return
 				}
@@ -183,7 +212,7 @@ func (p *Server) Recv(conn *ServerConn, id string, src *net.IPAddr) {
 			}
 		} else {
 			sendICMP(p.echoId, p.echoSeq, *p.conn, src, "", id, (uint32)(DATA), bytes[:n],
-				conn.rproto, -1, 0, p.key)
+				conn.rproto, -1, 0, p.key, packet.tcpmode)
 		}
 
 		p.sendPacket++
@@ -210,14 +239,14 @@ func (p *Server) checkTimeoutConn() {
 
 	for id, conn := range p.localConnMap {
 		if conn.close {
-			fmt.Printf("close inactive conn %s %s\n", id, conn.ipaddrTarget.String())
+			loggo.Info("close inactive conn %s %s", id, conn.ipaddrTarget.String())
 			p.Close(conn)
 		}
 	}
 }
 
 func (p *Server) showNet() {
-	fmt.Printf("send %dPacket/s %dKB/s recv %dPacket/s %dKB/s sendCatch %d/s recvCatch %d/s\n",
+	loggo.Info("send %dPacket/s %dKB/s recv %dPacket/s %dKB/s sendCatch %d/s recvCatch %d/s",
 		p.sendPacket, p.sendPacketSize/1024, p.recvPacket, p.recvPacketSize/1024, p.sendCatchPacket, p.recvCatchPacket)
 	p.sendPacket = 0
 	p.recvPacket = 0