David K. Bainbridge | 215e024 | 2017-09-05 23:18:24 -0700 | [diff] [blame] | 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 | } |