mirror of
https://github.com/go-gitea/gitea.git
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98 lines
2.7 KiB
Go
Vendored
98 lines
2.7 KiB
Go
Vendored
// Copyright 2013 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
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// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos
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package ipv6
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import (
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"net"
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"unsafe"
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"golang.org/x/net/internal/iana"
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"golang.org/x/net/internal/socket"
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"golang.org/x/sys/unix"
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)
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func marshalTrafficClass(b []byte, cm *ControlMessage) []byte {
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m := socket.ControlMessage(b)
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m.MarshalHeader(iana.ProtocolIPv6, unix.IPV6_TCLASS, 4)
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if cm != nil {
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socket.NativeEndian.PutUint32(m.Data(4), uint32(cm.TrafficClass))
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}
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return m.Next(4)
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}
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func parseTrafficClass(cm *ControlMessage, b []byte) {
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cm.TrafficClass = int(socket.NativeEndian.Uint32(b[:4]))
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}
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func marshalHopLimit(b []byte, cm *ControlMessage) []byte {
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m := socket.ControlMessage(b)
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m.MarshalHeader(iana.ProtocolIPv6, unix.IPV6_HOPLIMIT, 4)
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if cm != nil {
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socket.NativeEndian.PutUint32(m.Data(4), uint32(cm.HopLimit))
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}
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return m.Next(4)
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}
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func parseHopLimit(cm *ControlMessage, b []byte) {
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cm.HopLimit = int(socket.NativeEndian.Uint32(b[:4]))
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}
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func marshalPacketInfo(b []byte, cm *ControlMessage) []byte {
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m := socket.ControlMessage(b)
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m.MarshalHeader(iana.ProtocolIPv6, unix.IPV6_PKTINFO, sizeofInet6Pktinfo)
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if cm != nil {
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pi := (*inet6Pktinfo)(unsafe.Pointer(&m.Data(sizeofInet6Pktinfo)[0]))
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if ip := cm.Src.To16(); ip != nil && ip.To4() == nil {
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copy(pi.Addr[:], ip)
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}
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if cm.IfIndex > 0 {
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pi.setIfindex(cm.IfIndex)
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}
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}
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return m.Next(sizeofInet6Pktinfo)
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}
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func parsePacketInfo(cm *ControlMessage, b []byte) {
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pi := (*inet6Pktinfo)(unsafe.Pointer(&b[0]))
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if len(cm.Dst) < net.IPv6len {
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cm.Dst = make(net.IP, net.IPv6len)
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}
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copy(cm.Dst, pi.Addr[:])
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cm.IfIndex = int(pi.Ifindex)
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}
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func marshalNextHop(b []byte, cm *ControlMessage) []byte {
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m := socket.ControlMessage(b)
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m.MarshalHeader(iana.ProtocolIPv6, unix.IPV6_NEXTHOP, sizeofSockaddrInet6)
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if cm != nil {
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sa := (*sockaddrInet6)(unsafe.Pointer(&m.Data(sizeofSockaddrInet6)[0]))
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sa.setSockaddr(cm.NextHop, cm.IfIndex)
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}
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return m.Next(sizeofSockaddrInet6)
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}
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func parseNextHop(cm *ControlMessage, b []byte) {
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}
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func marshalPathMTU(b []byte, cm *ControlMessage) []byte {
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m := socket.ControlMessage(b)
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m.MarshalHeader(iana.ProtocolIPv6, unix.IPV6_PATHMTU, sizeofIPv6Mtuinfo)
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return m.Next(sizeofIPv6Mtuinfo)
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}
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func parsePathMTU(cm *ControlMessage, b []byte) {
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mi := (*ipv6Mtuinfo)(unsafe.Pointer(&b[0]))
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if len(cm.Dst) < net.IPv6len {
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cm.Dst = make(net.IP, net.IPv6len)
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}
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copy(cm.Dst, mi.Addr.Addr[:])
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cm.IfIndex = int(mi.Addr.Scope_id)
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cm.MTU = int(mi.Mtu)
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}
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