go.net/ipv6: new package
Package ipv6 implements IP-level socket options for the Internet
Protocol version 6. It also provides datagram based network I/O
methods specific to the IPv6 and higher layer protocols.
Fixes golang/go#5538.
R=dave
CC=golang-dev
https://golang.org/cl/9843044
diff --git a/ipv6/sockopt_rfc3542_unix.go b/ipv6/sockopt_rfc3542_unix.go
new file mode 100644
index 0000000..463f426
--- /dev/null
+++ b/ipv6/sockopt_rfc3542_unix.go
@@ -0,0 +1,48 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build freebsd linux netbsd openbsd
+
+package ipv6
+
+import (
+ "os"
+ "syscall"
+)
+
+func ipv6ReceiveTrafficClass(fd int) (bool, error) {
+ v, err := syscall.GetsockoptInt(fd, ianaProtocolIPv6, syscall.IPV6_RECVTCLASS)
+ if err != nil {
+ return false, os.NewSyscallError("getsockopt", err)
+ }
+ return v == 1, nil
+}
+
+func setIPv6ReceiveTrafficClass(fd int, v bool) error {
+ return os.NewSyscallError("setsockopt", syscall.SetsockoptInt(fd, ianaProtocolIPv6, syscall.IPV6_RECVTCLASS, boolint(v)))
+}
+
+func ipv6ReceiveHopLimit(fd int) (bool, error) {
+ v, err := syscall.GetsockoptInt(fd, ianaProtocolIPv6, syscall.IPV6_RECVHOPLIMIT)
+ if err != nil {
+ return false, os.NewSyscallError("getsockopt", err)
+ }
+ return v == 1, nil
+}
+
+func setIPv6ReceiveHopLimit(fd int, v bool) error {
+ return os.NewSyscallError("setsockopt", syscall.SetsockoptInt(fd, ianaProtocolIPv6, syscall.IPV6_RECVHOPLIMIT, boolint(v)))
+}
+
+func ipv6ReceivePacketInfo(fd int) (bool, error) {
+ v, err := syscall.GetsockoptInt(fd, ianaProtocolIPv6, syscall.IPV6_RECVPKTINFO)
+ if err != nil {
+ return false, os.NewSyscallError("getsockopt", err)
+ }
+ return v == 1, nil
+}
+
+func setIPv6ReceivePacketInfo(fd int, v bool) error {
+ return os.NewSyscallError("setsockopt", syscall.SetsockoptInt(fd, ianaProtocolIPv6, syscall.IPV6_RECVPKTINFO, boolint(v)))
+}
