From ac5132d1a03fe1ebbefb2382b36e829dff056283 Mon Sep 17 00:00:00 2001 From: Thomas Graf Date: Thu, 15 Jan 2015 03:53:56 +0100 Subject: vxlan: Only bind to sockets with compatible flags enabled A VXLAN net_device looking for an appropriate socket may only consider a socket which has a matching set of flags/extensions enabled. If incompatible flags are enabled, return a conflict to have the caller create a distinct socket with distinct port. The OVS VXLAN port is kept unaware of extensions at this point. Signed-off-by: Thomas Graf Signed-off-by: David S. Miller --- include/net/vxlan.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/net/vxlan.h') diff --git a/include/net/vxlan.h b/include/net/vxlan.h index f4a3583171bd..7be8c342fc95 100644 --- a/include/net/vxlan.h +++ b/include/net/vxlan.h @@ -129,6 +129,9 @@ struct vxlan_sock { #define VXLAN_F_REMCSUM_RX 0x400 #define VXLAN_F_GBP 0x800 +/* These flags must match in order for a socket to be shareable */ +#define VXLAN_F_UNSHAREABLE VXLAN_F_GBP + struct vxlan_sock *vxlan_sock_add(struct net *net, __be16 port, vxlan_rcv_t *rcv, void *data, bool no_share, u32 flags); -- cgit v1.2.3-59-g8ed1b