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net/vxlan: Use the underlying device index when joining/leaving multicast groups

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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 <[email protected]>
Acked-by: Stephen Hemminger <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Yan Burman 2012-12-20 03:36:08 +00:00 • committed by David S. Miller
commit af9b078e35
1 changed files with 4 additions and 2 deletions
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6
drivers/net/vxlan.c
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@ -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. */