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author | Christopher Speller <crspeller@gmail.com> | 2017-06-21 19:06:17 -0700 |
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committer | Corey Hulen <corey@hulen.com> | 2017-06-21 19:06:17 -0700 |
commit | 42f28ab8e374137fe3f5d25424489d879d4724f8 (patch) | |
tree | 20353f2446b506d32e6d353b72a57bf48f070389 /vendor/golang.org/x/net/ipv6/control_rfc3542_unix.go | |
parent | 6b39c308d882a0aeac533f8ab1d90b48a2ae4b5a (diff) | |
download | chat-42f28ab8e374137fe3f5d25424489d879d4724f8.tar.gz chat-42f28ab8e374137fe3f5d25424489d879d4724f8.tar.bz2 chat-42f28ab8e374137fe3f5d25424489d879d4724f8.zip |
Updating server dependancies (#6712)
Diffstat (limited to 'vendor/golang.org/x/net/ipv6/control_rfc3542_unix.go')
-rw-r--r-- | vendor/golang.org/x/net/ipv6/control_rfc3542_unix.go | 63 |
1 files changed, 29 insertions, 34 deletions
diff --git a/vendor/golang.org/x/net/ipv6/control_rfc3542_unix.go b/vendor/golang.org/x/net/ipv6/control_rfc3542_unix.go index 2800df4bc..62cded610 100644 --- a/vendor/golang.org/x/net/ipv6/control_rfc3542_unix.go +++ b/vendor/golang.org/x/net/ipv6/control_rfc3542_unix.go @@ -7,22 +7,20 @@ package ipv6 import ( - "syscall" + "net" "unsafe" "golang.org/x/net/internal/iana" + "golang.org/x/net/internal/socket" ) func marshalTrafficClass(b []byte, cm *ControlMessage) []byte { - m := (*syscall.Cmsghdr)(unsafe.Pointer(&b[0])) - m.Level = iana.ProtocolIPv6 - m.Type = sysIPV6_TCLASS - m.SetLen(syscall.CmsgLen(4)) + m := socket.ControlMessage(b) + m.MarshalHeader(iana.ProtocolIPv6, sysIPV6_TCLASS, 4) if cm != nil { - data := b[syscall.CmsgLen(0):] - nativeEndian.PutUint32(data[:4], uint32(cm.TrafficClass)) + nativeEndian.PutUint32(m.Data(4), uint32(cm.TrafficClass)) } - return b[syscall.CmsgSpace(4):] + return m.Next(4) } func parseTrafficClass(cm *ControlMessage, b []byte) { @@ -30,15 +28,12 @@ func parseTrafficClass(cm *ControlMessage, b []byte) { } func marshalHopLimit(b []byte, cm *ControlMessage) []byte { - m := (*syscall.Cmsghdr)(unsafe.Pointer(&b[0])) - m.Level = iana.ProtocolIPv6 - m.Type = sysIPV6_HOPLIMIT - m.SetLen(syscall.CmsgLen(4)) + m := socket.ControlMessage(b) + m.MarshalHeader(iana.ProtocolIPv6, sysIPV6_HOPLIMIT, 4) if cm != nil { - data := b[syscall.CmsgLen(0):] - nativeEndian.PutUint32(data[:4], uint32(cm.HopLimit)) + nativeEndian.PutUint32(m.Data(4), uint32(cm.HopLimit)) } - return b[syscall.CmsgSpace(4):] + return m.Next(4) } func parseHopLimit(cm *ControlMessage, b []byte) { @@ -46,12 +41,10 @@ func parseHopLimit(cm *ControlMessage, b []byte) { } func marshalPacketInfo(b []byte, cm *ControlMessage) []byte { - m := (*syscall.Cmsghdr)(unsafe.Pointer(&b[0])) - m.Level = iana.ProtocolIPv6 - m.Type = sysIPV6_PKTINFO - m.SetLen(syscall.CmsgLen(sizeofInet6Pktinfo)) + m := socket.ControlMessage(b) + m.MarshalHeader(iana.ProtocolIPv6, sysIPV6_PKTINFO, sizeofInet6Pktinfo) if cm != nil { - pi := (*inet6Pktinfo)(unsafe.Pointer(&b[syscall.CmsgLen(0)])) + pi := (*inet6Pktinfo)(unsafe.Pointer(&m.Data(sizeofInet6Pktinfo)[0])) if ip := cm.Src.To16(); ip != nil && ip.To4() == nil { copy(pi.Addr[:], ip) } @@ -59,41 +52,43 @@ func marshalPacketInfo(b []byte, cm *ControlMessage) []byte { pi.setIfindex(cm.IfIndex) } } - return b[syscall.CmsgSpace(sizeofInet6Pktinfo):] + return m.Next(sizeofInet6Pktinfo) } func parsePacketInfo(cm *ControlMessage, b []byte) { pi := (*inet6Pktinfo)(unsafe.Pointer(&b[0])) - cm.Dst = pi.Addr[:] + if len(cm.Dst) < net.IPv6len { + cm.Dst = make(net.IP, net.IPv6len) + } + copy(cm.Dst, pi.Addr[:]) cm.IfIndex = int(pi.Ifindex) } func marshalNextHop(b []byte, cm *ControlMessage) []byte { - m := (*syscall.Cmsghdr)(unsafe.Pointer(&b[0])) - m.Level = iana.ProtocolIPv6 - m.Type = sysIPV6_NEXTHOP - m.SetLen(syscall.CmsgLen(sizeofSockaddrInet6)) + m := socket.ControlMessage(b) + m.MarshalHeader(iana.ProtocolIPv6, sysIPV6_NEXTHOP, sizeofSockaddrInet6) if cm != nil { - sa := (*sockaddrInet6)(unsafe.Pointer(&b[syscall.CmsgLen(0)])) + sa := (*sockaddrInet6)(unsafe.Pointer(&m.Data(sizeofSockaddrInet6)[0])) sa.setSockaddr(cm.NextHop, cm.IfIndex) } - return b[syscall.CmsgSpace(sizeofSockaddrInet6):] + return m.Next(sizeofSockaddrInet6) } func parseNextHop(cm *ControlMessage, b []byte) { } func marshalPathMTU(b []byte, cm *ControlMessage) []byte { - m := (*syscall.Cmsghdr)(unsafe.Pointer(&b[0])) - m.Level = iana.ProtocolIPv6 - m.Type = sysIPV6_PATHMTU - m.SetLen(syscall.CmsgLen(sizeofIPv6Mtuinfo)) - return b[syscall.CmsgSpace(sizeofIPv6Mtuinfo):] + m := socket.ControlMessage(b) + m.MarshalHeader(iana.ProtocolIPv6, sysIPV6_PATHMTU, sizeofIPv6Mtuinfo) + return m.Next(sizeofIPv6Mtuinfo) } func parsePathMTU(cm *ControlMessage, b []byte) { mi := (*ipv6Mtuinfo)(unsafe.Pointer(&b[0])) - cm.Dst = mi.Addr.Addr[:] + if len(cm.Dst) < net.IPv6len { + cm.Dst = make(net.IP, net.IPv6len) + } + copy(cm.Dst, mi.Addr.Addr[:]) cm.IfIndex = int(mi.Addr.Scope_id) cm.MTU = int(mi.Mtu) } |