github.com/osrg/gobgp@v2.0.0+incompatible/pkg/server/sockopt_darwin.go (about)

     1  // Copyright (C) 2016-2017 Nippon Telegraph and Telephone Corporation.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //    http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
    12  // implied.
    13  // See the License for the specific language governing permissions and
    14  // limitations under the License.
    15  // +build darwin
    16  
    17  package server
    18  
    19  import (
    20  	"fmt"
    21  	"net"
    22  	"strings"
    23  	"syscall"
    24  )
    25  
    26  func setTcpMD5SigSockopt(l *net.TCPListener, address string, key string) error {
    27  	return fmt.Errorf("setting md5 is not supported")
    28  }
    29  
    30  func setListenTcpTTLSockopt(l *net.TCPListener, ttl int) error {
    31  	family := extractFamilyFromTCPListener(l)
    32  	sc, err := l.SyscallConn()
    33  	if err != nil {
    34  		return err
    35  	}
    36  	return setsockoptIpTtl(sc, family, ttl)
    37  }
    38  
    39  func setTcpTTLSockopt(conn *net.TCPConn, ttl int) error {
    40  	family := syscall.AF_INET
    41  	if strings.Contains(conn.RemoteAddr().String(), "[") {
    42  		family = syscall.AF_INET6
    43  	}
    44  	sc, err := conn.SyscallConn()
    45  	if err != nil {
    46  		return err
    47  	}
    48  	return setsockoptIpTtl(sc, family, ttl)
    49  }
    50  
    51  func setTcpMinTTLSockopt(conn *net.TCPConn, ttl int) error {
    52  	return fmt.Errorf("setting min ttl is not supported")
    53  }