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| author | David S. Miller <davem@davemloft.net> | 2014-07-08 16:13:10 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-07-08 16:13:10 -0700 |
| commit | 9274f9f895be561274ac13b37494abbc4243aebc (patch) | |
| tree | d4247dfb6ac918beb7b515cac71c6f334635a486 /include | |
| parent | 70452dcb6d401349fbd6db55dfab112fb44639be (diff) | |
| parent | c34963e21685659eb513e1c4d847f81d8a8f13f3 (diff) | |
Merge branch 'bridge_batmanadv_exports'
Linus Lüssing says:
====================
bridge: multicast snooping exports #2
Some people pointed out to me that it might be helpful to add stubs for
the newly added multicast exports. That way e.g. batman-adv should continue
to be compile and useable without having to have a kernel compiled
with bridge code in the future. This is what the first patch is supposed
to do.
The second patch adds a third multicast export for the bridge which
e.g. batman-adv is supposed to use, too, soon: Just like the bridge
disables its multicast snooping activities if no querier is present,
batman-adv needs to do the same if bridges are involved.
These three exports should be the final ones needed to marry the bridge
multicast snooping with the batman-adv multicast optimizations recently
added for the 3.15 kernel, allowing to use these optimzations in common
setups having a bridge on top of e.g. bat0, too. So far these bridged
setups would fall back to simple flooding through the batman-adv mesh
network for any multicast packet entering bat0.
More information about the batman-adv multicast optimizations currently
implemented can be found here:
http://www.open-mesh.org/projects/batman-adv/wiki/Basic-multicast-optimizations
The integration on the batman-adv side could afterwards look like this,
for instance (now including the third export):
http://git.open-mesh.org/batman-adv.git/commitdiff/61e4f6af4b7a21ed4040f2e711d50c778e5b6d93?hp=6ae4281474675fbca5bedcf768972a32db586eb6
====================
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/if_bridge.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/if_bridge.h b/include/linux/if_bridge.h index fd22789d7b2e..808dcb8cc04f 100644 --- a/include/linux/if_bridge.h +++ b/include/linux/if_bridge.h @@ -36,8 +36,28 @@ extern void brioctl_set(int (*ioctl_hook)(struct net *, unsigned int, void __use typedef int br_should_route_hook_t(struct sk_buff *skb); extern br_should_route_hook_t __rcu *br_should_route_hook; + +#if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_IGMP_SNOOPING) int br_multicast_list_adjacent(struct net_device *dev, struct list_head *br_ip_list); +bool br_multicast_has_querier_anywhere(struct net_device *dev, int proto); bool br_multicast_has_querier_adjacent(struct net_device *dev, int proto); +#else +static inline int br_multicast_list_adjacent(struct net_device *dev, + struct list_head *br_ip_list) +{ + return 0; +} +static inline bool br_multicast_has_querier_anywhere(struct net_device *dev, + int proto) +{ + return false; +} +static inline bool br_multicast_has_querier_adjacent(struct net_device *dev, + int proto) +{ + return false; +} +#endif #endif |