From af9b078e354614fad1e2e0cef04e216ae37cc389 Mon Sep 17 00:00:00 2001 From: Yan Burman Date: Thu, 20 Dec 2012 03:36:08 +0000 Subject: [PATCH] net/vxlan: Use the underlying device index when joining/leaving multicast groups The socket calls from vxlan to join/leave multicast group aren't using the index of the underlying device, as a result the stack uses the first interface that is up. This results in vxlan being non functional over a device which isn't the 1st to be up. Fix this by providing the iflink field to the vxlan instance to the multicast calls. Signed-off-by: Yan Burman Acked-by: Stephen Hemminger Signed-off-by: David S. Miller --- drivers/net/vxlan.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index 3b3fdf648ea7..40f2cc135a49 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -505,7 +505,8 @@ static int vxlan_join_group(struct net_device *dev) struct vxlan_net *vn = net_generic(dev_net(dev), vxlan_net_id); struct sock *sk = vn->sock->sk; struct ip_mreqn mreq = { - .imr_multiaddr.s_addr = vxlan->gaddr, + .imr_multiaddr.s_addr = vxlan->gaddr, + .imr_ifindex = vxlan->link, }; int err; @@ -532,7 +533,8 @@ static int vxlan_leave_group(struct net_device *dev) int err = 0; struct sock *sk = vn->sock->sk; struct ip_mreqn mreq = { - .imr_multiaddr.s_addr = vxlan->gaddr, + .imr_multiaddr.s_addr = vxlan->gaddr, + .imr_ifindex = vxlan->link, }; /* Only leave group when last vxlan is done. */ -- 2.20.1