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authorThomas Graf <tgraf@suug.ch>2015-01-15 05:53:56 +0300
committerDavid S. Miller <davem@davemloft.net>2015-01-15 09:11:41 +0300
commitac5132d1a03fe1ebbefb2382b36e829dff056283 (patch)
treec6485d636e3d8a25a4ead7fd1e6520286816fdfb /include
parent3511494ce2f3d3b77544c79b87511a4ddb61dc89 (diff)
downloadlinux-ac5132d1a03fe1ebbefb2382b36e829dff056283.tar.xz
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 <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/net/vxlan.h3
1 files changed, 3 insertions, 0 deletions
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);