add bmpd server

Currently, just accepts a conneciton and print received messages in
the json format.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>

1 files changed, 66 insertions, 0 deletions

diff --git a/gobmpd/main.go b/gobmpd/main.go
new file mode 100644
index 00000000..c6e68b04
--- /dev/null
+++ b/gobmpd/main.go
@@ -0,0 +1,66 @@
+// Copyright (C) 2015 Nippon Telegraph and Telephone Corporation.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+// implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package main
+
+import (
+	"bufio"
+	"encoding/json"
+	"fmt"
+	log "github.com/Sirupsen/logrus"
+	"github.com/osrg/gobgp/packet"
+	"net"
+	"os"
+	"strconv"
+)
+
+func connLoop(conn *net.TCPConn) {
+	addr := conn.RemoteAddr()
+	scanner := bufio.NewScanner(bufio.NewReader(conn))
+	scanner.Split(bgp.SplitBMP)
+
+	for scanner.Scan() {
+		msg, err := bgp.ParseBMPMessage(scanner.Bytes())
+		if err != nil {
+			log.Info(err)
+			continue
+		}
+		j, _ := json.Marshal(msg)
+		fmt.Print(string(j), "\n")
+	}
+	log.Info("conn was closed ", addr)
+}
+
+func main() {
+	service := ":" + strconv.Itoa(bgp.BMP_DEFAULT_PORT)
+	addr, _ := net.ResolveTCPAddr("tcp", service)
+
+	l, err := net.ListenTCP("tcp", addr)
+	if err != nil {
+		log.Info(err)
+		os.Exit(1)
+	}
+
+	for {
+		conn, err := l.AcceptTCP()
+		if err != nil {
+			log.Info(err)
+			continue
+		}
+		log.Info("Accepted a new connection from ", conn.RemoteAddr())
+
+		go connLoop(conn)
+	}
+}