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Diffstat (limited to 'vendor/golang.org/x/net/ipv6/sys_darwin.go')
-rw-r--r--vendor/golang.org/x/net/ipv6/sys_darwin.go106
1 files changed, 106 insertions, 0 deletions
diff --git a/vendor/golang.org/x/net/ipv6/sys_darwin.go b/vendor/golang.org/x/net/ipv6/sys_darwin.go
new file mode 100644
index 0000000..e3d0443
--- /dev/null
+++ b/vendor/golang.org/x/net/ipv6/sys_darwin.go
@@ -0,0 +1,106 @@
+// 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.
+
+package ipv6
+
+import (
+ "net"
+ "strconv"
+ "strings"
+ "syscall"
+ "unsafe"
+
+ "golang.org/x/net/internal/iana"
+ "golang.org/x/net/internal/socket"
+)
+
+var (
+ ctlOpts = [ctlMax]ctlOpt{
+ ctlHopLimit: {sysIPV6_2292HOPLIMIT, 4, marshal2292HopLimit, parseHopLimit},
+ ctlPacketInfo: {sysIPV6_2292PKTINFO, sizeofInet6Pktinfo, marshal2292PacketInfo, parsePacketInfo},
+ }
+
+ sockOpts = map[int]*sockOpt{
+ ssoHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_UNICAST_HOPS, Len: 4}},
+ ssoMulticastInterface: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_MULTICAST_IF, Len: 4}},
+ ssoMulticastHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_MULTICAST_HOPS, Len: 4}},
+ ssoMulticastLoopback: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_MULTICAST_LOOP, Len: 4}},
+ ssoReceiveHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_2292HOPLIMIT, Len: 4}},
+ ssoReceivePacketInfo: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_2292PKTINFO, Len: 4}},
+ ssoChecksum: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_CHECKSUM, Len: 4}},
+ ssoICMPFilter: {Option: socket.Option{Level: iana.ProtocolIPv6ICMP, Name: sysICMP6_FILTER, Len: sizeofICMPv6Filter}},
+ ssoJoinGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_JOIN_GROUP, Len: sizeofIPv6Mreq}, typ: ssoTypeIPMreq},
+ ssoLeaveGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_LEAVE_GROUP, Len: sizeofIPv6Mreq}, typ: ssoTypeIPMreq},
+ }
+)
+
+func init() {
+ // Seems like kern.osreldate is veiled on latest OS X. We use
+ // kern.osrelease instead.
+ s, err := syscall.Sysctl("kern.osrelease")
+ if err != nil {
+ return
+ }
+ ss := strings.Split(s, ".")
+ if len(ss) == 0 {
+ return
+ }
+ // The IP_PKTINFO and protocol-independent multicast API were
+ // introduced in OS X 10.7 (Darwin 11). But it looks like
+ // those features require OS X 10.8 (Darwin 12) or above.
+ // See http://support.apple.com/kb/HT1633.
+ if mjver, err := strconv.Atoi(ss[0]); err != nil || mjver < 12 {
+ return
+ }
+ ctlOpts[ctlTrafficClass] = ctlOpt{sysIPV6_TCLASS, 4, marshalTrafficClass, parseTrafficClass}
+ ctlOpts[ctlHopLimit] = ctlOpt{sysIPV6_HOPLIMIT, 4, marshalHopLimit, parseHopLimit}
+ ctlOpts[ctlPacketInfo] = ctlOpt{sysIPV6_PKTINFO, sizeofInet6Pktinfo, marshalPacketInfo, parsePacketInfo}
+ ctlOpts[ctlNextHop] = ctlOpt{sysIPV6_NEXTHOP, sizeofSockaddrInet6, marshalNextHop, parseNextHop}
+ ctlOpts[ctlPathMTU] = ctlOpt{sysIPV6_PATHMTU, sizeofIPv6Mtuinfo, marshalPathMTU, parsePathMTU}
+ sockOpts[ssoTrafficClass] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_TCLASS, Len: 4}}
+ sockOpts[ssoReceiveTrafficClass] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_RECVTCLASS, Len: 4}}
+ sockOpts[ssoReceiveHopLimit] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_RECVHOPLIMIT, Len: 4}}
+ sockOpts[ssoReceivePacketInfo] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_RECVPKTINFO, Len: 4}}
+ sockOpts[ssoReceivePathMTU] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_RECVPATHMTU, Len: 4}}
+ sockOpts[ssoPathMTU] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_PATHMTU, Len: sizeofIPv6Mtuinfo}}
+ sockOpts[ssoJoinGroup] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_JOIN_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq}
+ sockOpts[ssoLeaveGroup] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_LEAVE_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq}
+ sockOpts[ssoJoinSourceGroup] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_JOIN_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}
+ sockOpts[ssoLeaveSourceGroup] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_LEAVE_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}
+ sockOpts[ssoBlockSourceGroup] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_BLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}
+ sockOpts[ssoUnblockSourceGroup] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_UNBLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}
+}
+
+func (sa *sockaddrInet6) setSockaddr(ip net.IP, i int) {
+ sa.Len = sizeofSockaddrInet6
+ sa.Family = syscall.AF_INET6
+ copy(sa.Addr[:], ip)
+ sa.Scope_id = uint32(i)
+}
+
+func (pi *inet6Pktinfo) setIfindex(i int) {
+ pi.Ifindex = uint32(i)
+}
+
+func (mreq *ipv6Mreq) setIfindex(i int) {
+ mreq.Interface = uint32(i)
+}
+
+func (gr *groupReq) setGroup(grp net.IP) {
+ sa := (*sockaddrInet6)(unsafe.Pointer(uintptr(unsafe.Pointer(gr)) + 4))
+ sa.Len = sizeofSockaddrInet6
+ sa.Family = syscall.AF_INET6
+ copy(sa.Addr[:], grp)
+}
+
+func (gsr *groupSourceReq) setSourceGroup(grp, src net.IP) {
+ sa := (*sockaddrInet6)(unsafe.Pointer(uintptr(unsafe.Pointer(gsr)) + 4))
+ sa.Len = sizeofSockaddrInet6
+ sa.Family = syscall.AF_INET6
+ copy(sa.Addr[:], grp)
+ sa = (*sockaddrInet6)(unsafe.Pointer(uintptr(unsafe.Pointer(gsr)) + 132))
+ sa.Len = sizeofSockaddrInet6
+ sa.Family = syscall.AF_INET6
+ copy(sa.Addr[:], src)
+}