commit 572b51eaf7221935bdec454796989ba8318fa6f3
author Tobias Klauser <tklauser@distanz.ch> Thu Mar 07 14:06:33 2019 +0100
committer Tobias Klauser <tobias.klauser@gmail.com> Thu Mar 07 16:26:37 2019 +0000
tree efce0773fd98f8931743d0bbf590dfcaf7716446
parent b294cbcfc56d2a65a30c02c78722b5df061e99b8

unix: add SetsockoptPacketMreq on Linux

Add SetsockoptPacketMreq to set packet socket options used to
configure physical-layer multi‐casting and promiscuous mode
(PACKET_ADD_MEMBERSHIP, PACKET_DROP_MEMBERSHIP).

Change-Id: I0f292315ad1c57e6a3d1dd12f5f29be70d8bfd54
Reviewed-on: https://go-review.googlesource.com/c/sys/+/165977
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

unix/syscall_linux.go

diff --git a/unix/syscall_linux.go b/unix/syscall_linux.go
index fea1fb3..7e429ab 100644
--- a/unix/syscall_linux.go
+++ b/unix/syscall_linux.go
@@ -1022,6 +1022,10 @@
 	return setsockopt(fd, level, opt, unsafe.Pointer(mreq), unsafe.Sizeof(*mreq))
 }
 
+func SetsockoptPacketMreq(fd, level, opt int, mreq *PacketMreq) error {
+	return setsockopt(fd, level, opt, unsafe.Pointer(mreq), unsafe.Sizeof(*mreq))
+}
+
 // SetsockoptSockFprog attaches a classic BPF or an extended BPF program to a
 // socket to filter incoming packets.  See 'man 7 socket' for usage information.
 func SetsockoptSockFprog(fd, level, opt int, fprog *SockFprog) error {