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authorJouni Malinen <jouni@codeaurora.org>2015-03-04 12:54:21 +0200
committerDavid S. Miller <davem@davemloft.net>2015-03-05 14:52:23 -0500
commit842a9ae08a25671db3d4f689eed68b4d64be15b5 (patch)
treee8159604c1e8cc0abb1868e21ba6f6a5cabad5f7 /include/linux/if_bridge.h
parent787fb2bd42b9d798f4ed85b66e878222a9e28ae6 (diff)
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bridge: Extend Proxy ARP design to allow optional rules for Wi-Fi
This extends the design in commit 958501163ddd ("bridge: Add support for IEEE 802.11 Proxy ARP") with optional set of rules that are needed to meet the IEEE 802.11 and Hotspot 2.0 requirements for ProxyARP. The previously added BR_PROXYARP behavior is left as-is and a new BR_PROXYARP_WIFI alternative is added so that this behavior can be configured from user space when required. In addition, this enables proxyarp functionality for unicast ARP requests for both BR_PROXYARP and BR_PROXYARP_WIFI since it is possible to use unicast as well as broadcast for these frames. The key differences in functionality: BR_PROXYARP: - uses the flag on the bridge port on which the request frame was received to determine whether to reply - block bridge port flooding completely on ports that enable proxy ARP BR_PROXYARP_WIFI: - uses the flag on the bridge port to which the target device of the request belongs - block bridge port flooding selectively based on whether the proxyarp functionality replied Signed-off-by: Jouni Malinen <jouni@codeaurora.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/if_bridge.h')
-rw-r--r--include/linux/if_bridge.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/if_bridge.h b/include/linux/if_bridge.h
index a57bca2ea97e..dad8b00beed2 100644
--- a/include/linux/if_bridge.h
+++ b/include/linux/if_bridge.h
@@ -44,6 +44,7 @@ struct br_ip_list {
#define BR_PROMISC BIT(7)
#define BR_PROXYARP BIT(8)
#define BR_LEARNING_SYNC BIT(9)
+#define BR_PROXYARP_WIFI BIT(10)
extern void brioctl_set(int (*ioctl_hook)(struct net *, unsigned int, void __user *));