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Viewing changes to src/golang.org/x/net/ipv4/sys_freebsd.go

  • Committer: Nicholas Skaggs
  • Date: 2016-10-24 20:56:05 UTC
  • Revision ID: nicholas.skaggs@canonical.com-20161024205605-z8lta0uvuhtxwzwl
Initi with beta15

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src/golang.org/x/net/ipv4/sys_freebsd.go
 
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// Copyright 2014 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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package ipv4
 
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import (
 
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        "net"
 
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        "runtime"
 
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        "strings"
 
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        "syscall"
 
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        "unsafe"
 
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)
 
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type sysSockoptLen int32
 
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var (
 
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        ctlOpts = [ctlMax]ctlOpt{
 
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                ctlTTL:       {sysIP_RECVTTL, 1, marshalTTL, parseTTL},
 
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                ctlDst:       {sysIP_RECVDSTADDR, net.IPv4len, marshalDst, parseDst},
 
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                ctlInterface: {sysIP_RECVIF, syscall.SizeofSockaddrDatalink, marshalInterface, parseInterface},
 
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        }
 
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        sockOpts = [ssoMax]sockOpt{
 
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                ssoTOS:                {sysIP_TOS, ssoTypeInt},
 
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                ssoTTL:                {sysIP_TTL, ssoTypeInt},
 
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                ssoMulticastTTL:       {sysIP_MULTICAST_TTL, ssoTypeByte},
 
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                ssoMulticastInterface: {sysIP_MULTICAST_IF, ssoTypeInterface},
 
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                ssoMulticastLoopback:  {sysIP_MULTICAST_LOOP, ssoTypeInt},
 
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                ssoReceiveTTL:         {sysIP_RECVTTL, ssoTypeInt},
 
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                ssoReceiveDst:         {sysIP_RECVDSTADDR, ssoTypeInt},
 
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                ssoReceiveInterface:   {sysIP_RECVIF, ssoTypeInt},
 
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                ssoHeaderPrepend:      {sysIP_HDRINCL, ssoTypeInt},
 
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                ssoJoinGroup:          {sysMCAST_JOIN_GROUP, ssoTypeGroupReq},
 
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                ssoLeaveGroup:         {sysMCAST_LEAVE_GROUP, ssoTypeGroupReq},
 
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                ssoJoinSourceGroup:    {sysMCAST_JOIN_SOURCE_GROUP, ssoTypeGroupSourceReq},
 
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                ssoLeaveSourceGroup:   {sysMCAST_LEAVE_SOURCE_GROUP, ssoTypeGroupSourceReq},
 
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                ssoBlockSourceGroup:   {sysMCAST_BLOCK_SOURCE, ssoTypeGroupSourceReq},
 
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                ssoUnblockSourceGroup: {sysMCAST_UNBLOCK_SOURCE, ssoTypeGroupSourceReq},
 
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        }
 
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)
 
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func init() {
 
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        freebsdVersion, _ = syscall.SysctlUint32("kern.osreldate")
 
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        if freebsdVersion >= 1000000 {
 
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                sockOpts[ssoMulticastInterface].typ = ssoTypeIPMreqn
 
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        }
 
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        if runtime.GOOS == "freebsd" && runtime.GOARCH == "386" {
 
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                archs, _ := syscall.Sysctl("kern.supported_archs")
 
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                for _, s := range strings.Fields(archs) {
 
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                        if s == "amd64" {
 
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                                freebsd32o64 = true
 
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                                break
 
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                        }
 
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                }
 
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        }
 
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}
 
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func (gr *sysGroupReq) setGroup(grp net.IP) {
 
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        sa := (*sysSockaddrInet)(unsafe.Pointer(&gr.Group))
 
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        sa.Len = sysSizeofSockaddrInet
 
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        sa.Family = syscall.AF_INET
 
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        copy(sa.Addr[:], grp)
 
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}
 
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func (gsr *sysGroupSourceReq) setSourceGroup(grp, src net.IP) {
 
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        sa := (*sysSockaddrInet)(unsafe.Pointer(&gsr.Group))
 
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        sa.Len = sysSizeofSockaddrInet
 
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        sa.Family = syscall.AF_INET
 
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        copy(sa.Addr[:], grp)
 
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        sa = (*sysSockaddrInet)(unsafe.Pointer(&gsr.Source))
 
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        sa.Len = sysSizeofSockaddrInet
 
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        sa.Family = syscall.AF_INET
 
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        copy(sa.Addr[:], src)
 
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}