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authorJuuso Oikarinen <juuso.oikarinen@nokia.com>2010-05-27 15:32:13 +0300
committerJohn W. Linville <linville@tuxdriver.com>2010-06-03 14:10:45 -0400
commit2b2c009ecf71f4c66ff8420b63dddbc9737e04e3 (patch)
tree62f93194843ecf92d871d34963450c03d165af08 /net/mac80211/driver-ops.h
parent095dfdb0c479661f437b24b85e31f0d0b841eab6 (diff)
mac80211: Add support for hardware ARP query filtering
Some hardware allow extended filtering of ARP frames not intended for the host. To perform such filtering, the hardware needs to know the current IP address(es) of the host, bound to its interface. Add support for ARP filtering to mac80211 by adding a new op to the driver interface, allowing to configure the current IP addresses. This op is called upon association with the currently configured address(es), and when associated whenever the IP address(es) change. This patch adds configuration of IPv4 addresses only, as IPv6 addresses don't need ARP filtering. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/driver-ops.h')
-rw-r--r--net/mac80211/driver-ops.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index 4f2271316650..978850ee3a5f 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -83,6 +83,23 @@ static inline void drv_bss_info_changed(struct ieee80211_local *local,
trace_drv_bss_info_changed(local, sdata, info, changed);
}
+struct in_ifaddr;
+static inline int drv_configure_arp_filter(struct ieee80211_local *local,
+ struct ieee80211_vif *vif,
+ struct in_ifaddr *ifa_list)
+{
+ int ret = 0;
+
+ might_sleep();
+
+ if (local->ops->configure_arp_filter)
+ ret = local->ops->configure_arp_filter(&local->hw, vif,
+ ifa_list);
+
+ trace_drv_configure_arp_filter(local, vif_to_sdata(vif), ifa_list, ret);
+ return ret;
+}
+
static inline u64 drv_prepare_multicast(struct ieee80211_local *local,
struct netdev_hw_addr_list *mc_list)
{