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syscall: add netlink support for linux/386, linux/amd64, linux/arm

Browse source 
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/4535078
This commit is contained in:
Mikio Hara 2011-05-18 16:33:41 -07:00 • committed by Brad Fitzpatrick
parent 0a2650f398
commit 1d550bdedf
9 changed files with 1145 additions and 190 deletions
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27
src/pkg/syscall/syscall_linux.go
View file

@ -290,8 +290,33 @@ func (sa *SockaddrLinklayer) sockaddr() (uintptr, _Socklen, int) {
return uintptr(unsafe.Pointer(&sa.raw)), SizeofSockaddrLinklayer, 0
}
type SockaddrNetlink struct {
Family uint16
Pad uint16
Pid uint32
Groups uint32
raw RawSockaddrNetlink
}
func (sa *SockaddrNetlink) sockaddr() (uintptr, _Socklen, int) {
sa.raw.Family = AF_NETLINK
sa.raw.Pad = sa.Pad
sa.raw.Pid = sa.Pid
sa.raw.Groups = sa.Groups
return uintptr(unsafe.Pointer(&sa.raw)), SizeofSockaddrNetlink, 0
}
func anyToSockaddr(rsa *RawSockaddrAny) (Sockaddr, int) {
switch rsa.Addr.Family {
case AF_NETLINK:
pp := (*RawSockaddrNetlink)(unsafe.Pointer(rsa))
sa := new(SockaddrNetlink)
sa.Family = pp.Family
sa.Pad = pp.Pad
sa.Pid = pp.Pid
sa.Groups = pp.Groups
return sa, 0
case AF_PACKET:
pp := (*RawSockaddrLinklayer)(unsafe.Pointer(rsa))
sa := new(SockaddrLinklayer)
@ -489,7 +514,7 @@ func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from
oobn = int(msg.Controllen)
recvflags = int(msg.Flags)
// source address is only specified if the socket is unconnected
if rsa.Addr.Family != 0 {
if rsa.Addr.Family != AF_UNSPEC {
from, errno = anyToSockaddr(&rsa)
}
return