go.net/ipv6: add platform-dependent code
The syscall package of standard library is now locked down
and go.sys/unix is under curation. Also go.sys/unix doesn't
help supporting go1.3 and earlier users. There's no way to
extend this package without holding the platform adaptation
code.
LGTM=iant
R=iant
CC=golang-codereviews
https://golang.org/cl/146290043
diff --git a/ipv6/zsys_freebsd.go b/ipv6/zsys_freebsd.go
new file mode 100644
index 0000000..381b357
--- /dev/null
+++ b/ipv6/zsys_freebsd.go
@@ -0,0 +1,91 @@
+// Created by cgo -godefs - DO NOT EDIT
+// cgo -godefs defs_freebsd.go
+
+package ipv6
+
+const (
+ sysIPV6_UNICAST_HOPS = 0x4
+ sysIPV6_MULTICAST_IF = 0x9
+ sysIPV6_MULTICAST_HOPS = 0xa
+ sysIPV6_MULTICAST_LOOP = 0xb
+ sysIPV6_JOIN_GROUP = 0xc
+ sysIPV6_LEAVE_GROUP = 0xd
+ sysIPV6_PORTRANGE = 0xe
+ sysICMP6_FILTER = 0x12
+
+ sysIPV6_CHECKSUM = 0x1a
+ sysIPV6_V6ONLY = 0x1b
+
+ sysIPV6_IPSEC_POLICY = 0x1c
+
+ sysIPV6_RTHDRDSTOPTS = 0x23
+
+ sysIPV6_RECVPKTINFO = 0x24
+ sysIPV6_RECVHOPLIMIT = 0x25
+ sysIPV6_RECVRTHDR = 0x26
+ sysIPV6_RECVHOPOPTS = 0x27
+ sysIPV6_RECVDSTOPTS = 0x28
+
+ sysIPV6_USE_MIN_MTU = 0x2a
+ sysIPV6_RECVPATHMTU = 0x2b
+
+ sysIPV6_PATHMTU = 0x2c
+
+ sysIPV6_PKTINFO = 0x2e
+ sysIPV6_HOPLIMIT = 0x2f
+ sysIPV6_NEXTHOP = 0x30
+ sysIPV6_HOPOPTS = 0x31
+ sysIPV6_DSTOPTS = 0x32
+ sysIPV6_RTHDR = 0x33
+
+ sysIPV6_RECVTCLASS = 0x39
+
+ sysIPV6_AUTOFLOWLABEL = 0x3b
+
+ sysIPV6_TCLASS = 0x3d
+ sysIPV6_DONTFRAG = 0x3e
+
+ sysIPV6_PREFER_TEMPADDR = 0x3f
+
+ sysIPV6_BINDANY = 0x40
+
+ sysIPV6_PORTRANGE_DEFAULT = 0x0
+ sysIPV6_PORTRANGE_HIGH = 0x1
+ sysIPV6_PORTRANGE_LOW = 0x2
+
+ sysSizeofSockaddrInet6 = 0x1c
+ sysSizeofInet6Pktinfo = 0x14
+ sysSizeofIPv6Mtuinfo = 0x20
+
+ sysSizeofIPv6Mreq = 0x14
+
+ sysSizeofICMPv6Filter = 0x20
+)
+
+type sysSockaddrInet6 struct {
+ Len uint8
+ Family uint8
+ Port uint16
+ Flowinfo uint32
+ Addr [16]byte /* in6_addr */
+ Scope_id uint32
+}
+
+type sysInet6Pktinfo struct {
+ Addr [16]byte /* in6_addr */
+ Ifindex uint32
+}
+
+type sysIPv6Mtuinfo struct {
+ Addr sysSockaddrInet6
+ Mtu uint32
+}
+
+type sysIPv6Mreq struct {
+ Multiaddr [16]byte /* in6_addr */
+ Interface uint32
+}
+
+type sysICMPv6Filter struct {
+ Filt [8]uint32
+}
