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https://github.com/cloudnativelabs/kube-router.git
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9e75203598
* Use libnetwork/ipvs alternative * PR image tag simplification * Remove nested vendor directories
91 lines
2.4 KiB
Go
91 lines
2.4 KiB
Go
// Copyright (C) 2016 Nippon Telegraph and Telephone Corporation.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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// implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// +build !linux,!openbsd
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package server
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import (
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"fmt"
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"net"
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log "github.com/sirupsen/logrus"
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)
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func SetTcpMD5SigSockopt(l *net.TCPListener, address string, key string) error {
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return setTcpMD5SigSockopt(l, address, key)
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}
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func SetListenTcpTTLSockopt(l *net.TCPListener, ttl int) error {
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return setListenTcpTTLSockopt(l, ttl)
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}
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func SetTcpTTLSockopt(conn *net.TCPConn, ttl int) error {
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return setTcpTTLSockopt(conn, ttl)
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}
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func SetTcpMinTTLSockopt(conn *net.TCPConn, ttl int) error {
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return setTcpMinTTLSockopt(conn, ttl)
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}
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type TCPDialer struct {
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net.Dialer
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// MD5 authentication password.
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AuthPassword string
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// The TTL value to set outgoing connection.
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Ttl uint8
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// The minimum TTL value for incoming packets.
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TtlMin uint8
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}
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func (d *TCPDialer) DialTCP(addr string, port int) (*net.TCPConn, error) {
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if d.AuthPassword != "" {
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log.WithFields(log.Fields{
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"Topic": "Peer",
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"Key": addr,
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}).Warn("setting md5 for active connection is not supported")
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}
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if d.Ttl != 0 {
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log.WithFields(log.Fields{
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"Topic": "Peer",
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"Key": addr,
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}).Warn("setting ttl for active connection is not supported")
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}
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if d.TtlMin != 0 {
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log.WithFields(log.Fields{
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"Topic": "Peer",
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"Key": addr,
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}).Warn("setting min ttl for active connection is not supported")
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}
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raddr, err := net.ResolveTCPAddr("tcp", net.JoinHostPort(addr, fmt.Sprintf("%d", port)))
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if err != nil {
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return nil, fmt.Errorf("invalid remote address: %s", err)
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}
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laddr, err := net.ResolveTCPAddr("tcp", d.LocalAddr.String())
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if err != nil {
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return nil, fmt.Errorf("invalid local address: %s", err)
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}
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dialer := net.Dialer{LocalAddr: laddr, Timeout: d.Timeout}
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conn, err := dialer.Dial("tcp", raddr.String())
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if err != nil {
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return nil, err
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}
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return conn.(*net.TCPConn), nil
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}
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