From: Eliad Peller <eliad@xxxxxxxxxx>
Configure arp request broadcast filter if this
option is enabled, in order to allow only arp
request broadcasts to pass-in.
(A following patch will make this filter even narrower
by limiting the arp request to our own ip)
Signed-off-by: Eliad Peller <eliadx.peller@xxxxxxxxx>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>
---
drivers/net/wireless/iwlwifi/mvm/mac80211.c | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 08b8051..6f9640b 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -128,6 +128,28 @@ static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = {
};
#endif
+#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
+static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = {
+ {
+ /* arp */
+ .discard = 0,
+ .frame_type = BCAST_FILTER_FRAME_TYPE_ALL,
+ .attrs = {
+ {
+ /* frame type - arp, hw type - ethernet */
+ .offset_type =
+ BCAST_FILTER_OFFSET_PAYLOAD_START,
+ .offset = sizeof(rfc1042_header),
+ .val = cpu_to_be32(0x08060001),
+ .mask = cpu_to_be32(0xffffffff),
+ },
+ },
+ },
+ /* last filter must be empty */
+ {},
+};
+#endif
+
static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
{
int i;
@@ -292,6 +314,11 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
}
#endif
+#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
+ /* assign default bcast filtering configuration */
+ mvm->bcast_filters = iwl_mvm_default_bcast_filters;
+#endif
+
ret = iwl_mvm_leds_init(mvm);
if (ret)
return ret;
--
1.7.9.5
--
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