diff options
author | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2018-07-07 13:48:38 +0900 |
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committer | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2018-07-07 20:44:25 +0900 |
commit | c4775c42510d1f1ddd55036dc19e982712fa6a0b (patch) | |
tree | 6ec8b61d4338c809e239e3003a2d32d480898e22 /pkg/server/sockopt.go | |
parent | b3079759aa13172fcb548a83da9a9653d8d5fed4 (diff) |
follow Standard Go Project Layout
https://github.com/golang-standards/project-layout
Now you can see clearly what are private and public library code.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Diffstat (limited to 'pkg/server/sockopt.go')
-rw-r--r-- | pkg/server/sockopt.go | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/pkg/server/sockopt.go b/pkg/server/sockopt.go new file mode 100644 index 00000000..e1c9c467 --- /dev/null +++ b/pkg/server/sockopt.go @@ -0,0 +1,90 @@ +// Copyright (C) 2016 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. +// +build !linux,!openbsd + +package server + +import ( + "fmt" + "net" + + log "github.com/sirupsen/logrus" +) + +func SetTcpMD5SigSockopt(l *net.TCPListener, address string, key string) error { + return setTcpMD5SigSockopt(l, address, key) +} + +func SetListenTcpTTLSockopt(l *net.TCPListener, ttl int) error { + return setListenTcpTTLSockopt(l, ttl) +} + +func SetTcpTTLSockopt(conn *net.TCPConn, ttl int) error { + return setTcpTTLSockopt(conn, ttl) +} + +func SetTcpMinTTLSockopt(conn *net.TCPConn, ttl int) error { + return setTcpMinTTLSockopt(conn, ttl) +} + +type TCPDialer struct { + net.Dialer + + // MD5 authentication password. + AuthPassword string + + // The TTL value to set outgoing connection. + Ttl uint8 + + // The minimum TTL value for incoming packets. + TtlMin uint8 +} + +func (d *TCPDialer) DialTCP(addr string, port int) (*net.TCPConn, error) { + if d.AuthPassword != "" { + log.WithFields(log.Fields{ + "Topic": "Peer", + "Key": addr, + }).Warn("setting md5 for active connection is not supported") + } + if d.Ttl != 0 { + log.WithFields(log.Fields{ + "Topic": "Peer", + "Key": addr, + }).Warn("setting ttl for active connection is not supported") + } + if d.TtlMin != 0 { + log.WithFields(log.Fields{ + "Topic": "Peer", + "Key": addr, + }).Warn("setting min ttl for active connection is not supported") + } + + raddr, err := net.ResolveTCPAddr("tcp", net.JoinHostPort(addr, fmt.Sprintf("%d", port))) + if err != nil { + return nil, fmt.Errorf("invalid remote address: %s", err) + } + laddr, err := net.ResolveTCPAddr("tcp", d.LocalAddr.String()) + if err != nil { + return nil, fmt.Errorf("invalid local address: %s", err) + } + + dialer := net.Dialer{LocalAddr: laddr, Timeout: d.Timeout} + conn, err := dialer.Dial("tcp", raddr.String()) + if err != nil { + return nil, err + } + return conn.(*net.TCPConn), nil +} |