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authorCong Wang <amwang@redhat.com>2012-12-11 22:23:08 +0000
committerDavid S. Miller <davem@davemloft.net>2012-12-12 13:02:30 -0500
commitcfd567543590f71ca0af397437e2554f9756d750 (patch)
treeb21b43cc137cb00386bd2d0d1533c9742224a050 /net/bridge/br_private.h
parent37a393bc4932d7bac360f40064aaafc01ab44901 (diff)
bridge: add support of adding and deleting mdb entries
This patch implents adding/deleting mdb entries via netlink. Currently all entries are temp, we probably need a flag to distinguish permanent entries too. Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Stephen Hemminger <shemminger@vyatta.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Thomas Graf <tgraf@suug.ch> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_private.h')
-rw-r--r--net/bridge/br_private.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 2807c7680c38..f21a739a6186 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -434,10 +434,33 @@ extern int br_multicast_set_port_router(struct net_bridge_port *p,
extern int br_multicast_toggle(struct net_bridge *br, unsigned long val);
extern int br_multicast_set_querier(struct net_bridge *br, unsigned long val);
extern int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val);
+extern struct net_bridge_mdb_entry *br_mdb_ip_get(
+ struct net_bridge_mdb_htable *mdb,
+ struct br_ip *dst);
+extern struct net_bridge_mdb_entry *br_multicast_new_group(struct net_bridge *br,
+ struct net_bridge_port *port, struct br_ip *group);
+extern void br_multicast_free_pg(struct rcu_head *head);
+extern struct net_bridge_port_group *br_multicast_new_port_group(
+ struct net_bridge_port *port,
+ struct br_ip *group,
+ struct net_bridge_port_group *next);
extern void br_mdb_init(void);
extern void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port,
struct br_ip *group, int type);
+#define mlock_dereference(X, br) \
+ rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock))
+
+#if IS_ENABLED(CONFIG_IPV6)
+#include <net/addrconf.h>
+static inline int ipv6_is_transient_multicast(const struct in6_addr *addr)
+{
+ if (ipv6_addr_is_multicast(addr) && IPV6_ADDR_MC_FLAG_TRANSIENT(addr))
+ return 1;
+ return 0;
+}
+#endif
+
static inline bool br_multicast_is_router(struct net_bridge *br)
{
return br->multicast_router == 2 ||