vendor/golang.org/x/net/ipv6/control_unix.go

   1 // Copyright 2013 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 // +build darwin dragonfly freebsd linux netbsd openbsd solaris
   6
   7 package ipv6
   8
   9 import "golang.org/x/net/internal/socket"
  10
  11 func setControlMessage(c *socket.Conn, opt *rawOpt, cf ControlFlags, on bool) error {
  12         opt.Lock()
  13         defer opt.Unlock()
  14         if so, ok := sockOpts[ssoReceiveTrafficClass]; ok && cf&FlagTrafficClass != 0 {
  15                 if err := so.SetInt(c, boolint(on)); err != nil {
  16                         return err
  17                 }
  18                 if on {
  19                         opt.set(FlagTrafficClass)
  20                 } else {
  21                         opt.clear(FlagTrafficClass)
  22                 }
  23         }
  24         if so, ok := sockOpts[ssoReceiveHopLimit]; ok && cf&FlagHopLimit != 0 {
  25                 if err := so.SetInt(c, boolint(on)); err != nil {
  26                         return err
  27                 }
  28                 if on {
  29                         opt.set(FlagHopLimit)
  30                 } else {
  31                         opt.clear(FlagHopLimit)
  32                 }
  33         }
  34         if so, ok := sockOpts[ssoReceivePacketInfo]; ok && cf&flagPacketInfo != 0 {
  35                 if err := so.SetInt(c, boolint(on)); err != nil {
  36                         return err
  37                 }
  38                 if on {
  39                         opt.set(cf & flagPacketInfo)
  40                 } else {
  41                         opt.clear(cf & flagPacketInfo)
  42                 }
  43         }
  44         if so, ok := sockOpts[ssoReceivePathMTU]; ok && cf&FlagPathMTU != 0 {
  45                 if err := so.SetInt(c, boolint(on)); err != nil {
  46                         return err
  47                 }
  48                 if on {
  49                         opt.set(FlagPathMTU)
  50                 } else {
  51                         opt.clear(FlagPathMTU)
  52                 }
  53         }
  54         return nil
  55 }