26d0083faf
commit a1a37d335a8e89ac89d85c00c8585d3fc02e064a
Author: Josh Baker <joshbaker77@gmail.com>
Date: Thu Oct 5 07:36:54 2017 -0700
use symlink instead of copy
commit 96399c2c92620f633611c778e5473200bfd48d41
Author: Josh Baker <joshbaker77@gmail.com>
Date: Thu Oct 5 07:19:26 2017 -0700
use dep for vendoring
58 lines
2.8 KiB
Go
58 lines
2.8 KiB
Go
// Copyright 2016 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 ipv4
|
|
|
|
import (
|
|
"net"
|
|
"syscall"
|
|
"unsafe"
|
|
|
|
"golang.org/x/net/internal/iana"
|
|
"golang.org/x/net/internal/socket"
|
|
)
|
|
|
|
var (
|
|
ctlOpts = [ctlMax]ctlOpt{
|
|
ctlTTL: {sysIP_RECVTTL, 4, marshalTTL, parseTTL},
|
|
ctlPacketInfo: {sysIP_PKTINFO, sizeofInetPktinfo, marshalPacketInfo, parsePacketInfo},
|
|
}
|
|
|
|
sockOpts = map[int]sockOpt{
|
|
ssoTOS: {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_TOS, Len: 4}},
|
|
ssoTTL: {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_TTL, Len: 4}},
|
|
ssoMulticastTTL: {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_MULTICAST_TTL, Len: 1}},
|
|
ssoMulticastInterface: {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_MULTICAST_IF, Len: 4}},
|
|
ssoMulticastLoopback: {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_MULTICAST_LOOP, Len: 1}},
|
|
ssoReceiveTTL: {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_RECVTTL, Len: 4}},
|
|
ssoPacketInfo: {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_RECVPKTINFO, Len: 4}},
|
|
ssoHeaderPrepend: {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_HDRINCL, Len: 4}},
|
|
ssoJoinGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: sysMCAST_JOIN_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq},
|
|
ssoLeaveGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: sysMCAST_LEAVE_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq},
|
|
ssoJoinSourceGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: sysMCAST_JOIN_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq},
|
|
ssoLeaveSourceGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: sysMCAST_LEAVE_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq},
|
|
ssoBlockSourceGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: sysMCAST_BLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq},
|
|
ssoUnblockSourceGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: sysMCAST_UNBLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq},
|
|
}
|
|
)
|
|
|
|
func (pi *inetPktinfo) setIfindex(i int) {
|
|
pi.Ifindex = uint32(i)
|
|
}
|
|
|
|
func (gr *groupReq) setGroup(grp net.IP) {
|
|
sa := (*sockaddrInet)(unsafe.Pointer(uintptr(unsafe.Pointer(gr)) + 4))
|
|
sa.Family = syscall.AF_INET
|
|
copy(sa.Addr[:], grp)
|
|
}
|
|
|
|
func (gsr *groupSourceReq) setSourceGroup(grp, src net.IP) {
|
|
sa := (*sockaddrInet)(unsafe.Pointer(uintptr(unsafe.Pointer(gsr)) + 4))
|
|
sa.Family = syscall.AF_INET
|
|
copy(sa.Addr[:], grp)
|
|
sa = (*sockaddrInet)(unsafe.Pointer(uintptr(unsafe.Pointer(gsr)) + 260))
|
|
sa.Family = syscall.AF_INET
|
|
copy(sa.Addr[:], src)
|
|
}
|