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authorLinus Lüssing <linus.luessing@web.de>2014-06-07 20:26:28 +0400
committerDavid S. Miller <davem@davemloft.net>2014-06-11 10:50:47 +0400
commit07f8ac4a1e26e8283542cdaf658a6e2a12fd6980 (patch)
tree767bc394b56374b576feb4da5ff38808428c0857 /include/linux/if_bridge.h
parentdc4eb53a996a78bfb8ea07b47423ff5a3aadc362 (diff)
downloadlinux-07f8ac4a1e26e8283542cdaf658a6e2a12fd6980.tar.xz
bridge: add export of multicast database adjacent to net_dev
With this new, exported function br_multicast_list_adjacent(net_dev) a list of IPv4/6 addresses is returned. This list contains all multicast addresses sensed by the bridge multicast snooping feature on all bridge ports of the bridge interface of net_dev, excluding addresses from the specified net_device itself. Adding bridge support to the batman-adv multicast optimization requires batman-adv knowing about the existence of bridged-in multicast listeners to be able to reliably serve them with multicast packets. Signed-off-by: Linus Lüssing <linus.luessing@web.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/if_bridge.h')
-rw-r--r--include/linux/if_bridge.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/if_bridge.h b/include/linux/if_bridge.h
index 1085ffeef956..44d6eb0eb852 100644
--- a/include/linux/if_bridge.h
+++ b/include/linux/if_bridge.h
@@ -16,9 +16,27 @@
#include <linux/netdevice.h>
#include <uapi/linux/if_bridge.h>
+struct br_ip {
+ union {
+ __be32 ip4;
+#if IS_ENABLED(CONFIG_IPV6)
+ struct in6_addr ip6;
+#endif
+ } u;
+ __be16 proto;
+ __u16 vid;
+};
+
+struct br_ip_list {
+ struct list_head list;
+ struct br_ip addr;
+};
+
extern void brioctl_set(int (*ioctl_hook)(struct net *, unsigned int, void __user *));
typedef int br_should_route_hook_t(struct sk_buff *skb);
extern br_should_route_hook_t __rcu *br_should_route_hook;
+int br_multicast_list_adjacent(struct net_device *dev,
+ struct list_head *br_ip_list);
#endif