From 842a9ae08a25671db3d4f689eed68b4d64be15b5 Mon Sep 17 00:00:00 2001 From: Jouni Malinen Date: Wed, 4 Mar 2015 12:54:21 +0200 Subject: 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 Signed-off-by: David S. Miller --- net/bridge/br_sysfs_if.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'net/bridge/br_sysfs_if.c') diff --git a/net/bridge/br_sysfs_if.c b/net/bridge/br_sysfs_if.c index 2de5d91199e8..4905845a94e9 100644 --- a/net/bridge/br_sysfs_if.c +++ b/net/bridge/br_sysfs_if.c @@ -171,6 +171,7 @@ BRPORT_ATTR_FLAG(root_block, BR_ROOT_BLOCK); BRPORT_ATTR_FLAG(learning, BR_LEARNING); BRPORT_ATTR_FLAG(unicast_flood, BR_FLOOD); BRPORT_ATTR_FLAG(proxyarp, BR_PROXYARP); +BRPORT_ATTR_FLAG(proxyarp_wifi, BR_PROXYARP_WIFI); #ifdef CONFIG_BRIDGE_IGMP_SNOOPING static ssize_t show_multicast_router(struct net_bridge_port *p, char *buf) @@ -215,6 +216,7 @@ static const struct brport_attribute *brport_attrs[] = { &brport_attr_multicast_fast_leave, #endif &brport_attr_proxyarp, + &brport_attr_proxyarp_wifi, NULL }; -- cgit v1.2.3-70-g09d2