forked from mystiq/dex
91 lines
3.3 KiB
Go
91 lines
3.3 KiB
Go
// 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"
|
|
"runtime"
|
|
"strings"
|
|
"syscall"
|
|
"unsafe"
|
|
|
|
"golang.org/x/net/internal/iana"
|
|
)
|
|
|
|
var (
|
|
ctlOpts = [ctlMax]ctlOpt{
|
|
ctlTrafficClass: {sysIPV6_TCLASS, 4, marshalTrafficClass, parseTrafficClass},
|
|
ctlHopLimit: {sysIPV6_HOPLIMIT, 4, marshalHopLimit, parseHopLimit},
|
|
ctlPacketInfo: {sysIPV6_PKTINFO, sysSizeofInet6Pktinfo, marshalPacketInfo, parsePacketInfo},
|
|
ctlNextHop: {sysIPV6_NEXTHOP, sysSizeofSockaddrInet6, marshalNextHop, parseNextHop},
|
|
ctlPathMTU: {sysIPV6_PATHMTU, sysSizeofIPv6Mtuinfo, marshalPathMTU, parsePathMTU},
|
|
}
|
|
|
|
sockOpts = [ssoMax]sockOpt{
|
|
ssoTrafficClass: {iana.ProtocolIPv6, sysIPV6_TCLASS, ssoTypeInt},
|
|
ssoHopLimit: {iana.ProtocolIPv6, sysIPV6_UNICAST_HOPS, ssoTypeInt},
|
|
ssoMulticastInterface: {iana.ProtocolIPv6, sysIPV6_MULTICAST_IF, ssoTypeInterface},
|
|
ssoMulticastHopLimit: {iana.ProtocolIPv6, sysIPV6_MULTICAST_HOPS, ssoTypeInt},
|
|
ssoMulticastLoopback: {iana.ProtocolIPv6, sysIPV6_MULTICAST_LOOP, ssoTypeInt},
|
|
ssoReceiveTrafficClass: {iana.ProtocolIPv6, sysIPV6_RECVTCLASS, ssoTypeInt},
|
|
ssoReceiveHopLimit: {iana.ProtocolIPv6, sysIPV6_RECVHOPLIMIT, ssoTypeInt},
|
|
ssoReceivePacketInfo: {iana.ProtocolIPv6, sysIPV6_RECVPKTINFO, ssoTypeInt},
|
|
ssoReceivePathMTU: {iana.ProtocolIPv6, sysIPV6_RECVPATHMTU, ssoTypeInt},
|
|
ssoPathMTU: {iana.ProtocolIPv6, sysIPV6_PATHMTU, ssoTypeMTUInfo},
|
|
ssoChecksum: {iana.ProtocolIPv6, sysIPV6_CHECKSUM, ssoTypeInt},
|
|
ssoICMPFilter: {iana.ProtocolIPv6ICMP, sysICMP6_FILTER, ssoTypeICMPFilter},
|
|
ssoJoinGroup: {iana.ProtocolIPv6, sysMCAST_JOIN_GROUP, ssoTypeGroupReq},
|
|
ssoLeaveGroup: {iana.ProtocolIPv6, sysMCAST_LEAVE_GROUP, ssoTypeGroupReq},
|
|
ssoJoinSourceGroup: {iana.ProtocolIPv6, sysMCAST_JOIN_SOURCE_GROUP, ssoTypeGroupSourceReq},
|
|
ssoLeaveSourceGroup: {iana.ProtocolIPv6, sysMCAST_LEAVE_SOURCE_GROUP, ssoTypeGroupSourceReq},
|
|
ssoBlockSourceGroup: {iana.ProtocolIPv6, sysMCAST_BLOCK_SOURCE, ssoTypeGroupSourceReq},
|
|
ssoUnblockSourceGroup: {iana.ProtocolIPv6, sysMCAST_UNBLOCK_SOURCE, ssoTypeGroupSourceReq},
|
|
}
|
|
)
|
|
|
|
func init() {
|
|
if runtime.GOOS == "freebsd" && runtime.GOARCH == "386" {
|
|
archs, _ := syscall.Sysctl("kern.supported_archs")
|
|
for _, s := range strings.Fields(archs) {
|
|
if s == "amd64" {
|
|
freebsd32o64 = true
|
|
break
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func (sa *sysSockaddrInet6) setSockaddr(ip net.IP, i int) {
|
|
sa.Len = sysSizeofSockaddrInet6
|
|
sa.Family = syscall.AF_INET6
|
|
copy(sa.Addr[:], ip)
|
|
sa.Scope_id = uint32(i)
|
|
}
|
|
|
|
func (pi *sysInet6Pktinfo) setIfindex(i int) {
|
|
pi.Ifindex = uint32(i)
|
|
}
|
|
|
|
func (mreq *sysIPv6Mreq) setIfindex(i int) {
|
|
mreq.Interface = uint32(i)
|
|
}
|
|
|
|
func (gr *sysGroupReq) setGroup(grp net.IP) {
|
|
sa := (*sysSockaddrInet6)(unsafe.Pointer(&gr.Group))
|
|
sa.Len = sysSizeofSockaddrInet6
|
|
sa.Family = syscall.AF_INET6
|
|
copy(sa.Addr[:], grp)
|
|
}
|
|
|
|
func (gsr *sysGroupSourceReq) setSourceGroup(grp, src net.IP) {
|
|
sa := (*sysSockaddrInet6)(unsafe.Pointer(&gsr.Group))
|
|
sa.Len = sysSizeofSockaddrInet6
|
|
sa.Family = syscall.AF_INET6
|
|
copy(sa.Addr[:], grp)
|
|
sa = (*sysSockaddrInet6)(unsafe.Pointer(&gsr.Source))
|
|
sa.Len = sysSizeofSockaddrInet6
|
|
sa.Family = syscall.AF_INET6
|
|
copy(sa.Addr[:], src)
|
|
}
|