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authorPetr Machata <petrm@mellanox.com>2018-04-29 10:56:08 +0300
committerDavid S. Miller <davem@davemloft.net>2018-04-30 19:42:40 +0300
commit4d4fd36126d66d6091ca5aaabab262b5da3849c5 (patch)
treea51be25d13043d00071ac504f98284a47da0ed1a /net/bridge/br_fdb.c
parent6df93462c2e3ed9656829078aa68214c64619042 (diff)
downloadlinux-4d4fd36126d66d6091ca5aaabab262b5da3849c5.tar.xz
net: bridge: Publish bridge accessor functions
Add a couple new functions to allow querying FDB and vlan settings of a bridge. Signed-off-by: Petr Machata <petrm@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_fdb.c')
-rw-r--r--net/bridge/br_fdb.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index d9e69e4514be..a1c409cacec4 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -121,6 +121,28 @@ static struct net_bridge_fdb_entry *br_fdb_find(struct net_bridge *br,
return fdb;
}
+struct net_device *br_fdb_find_port(const struct net_device *br_dev,
+ const unsigned char *addr,
+ __u16 vid)
+{
+ struct net_bridge_fdb_entry *f;
+ struct net_device *dev = NULL;
+ struct net_bridge *br;
+
+ ASSERT_RTNL();
+
+ if (!netif_is_bridge_master(br_dev))
+ return NULL;
+
+ br = netdev_priv(br_dev);
+ f = br_fdb_find(br, addr, vid);
+ if (f && f->dst)
+ dev = f->dst->dev;
+
+ return dev;
+}
+EXPORT_SYMBOL_GPL(br_fdb_find_port);
+
struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br,
const unsigned char *addr,
__u16 vid)