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authorSara Sharon <sara.sharon@intel.com>2016-05-03 15:59:44 +0300
committerJohannes Berg <johannes.berg@intel.com>2016-05-12 12:14:45 +0300
commitf631a77ba920f7153a1094d09cd8f2ebbffd0328 (patch)
treeb5baaab1e31664bf225c04581178efaf6e1f387a /include/net/mac80211.h
parent20eb7ea93f7ffaaa24b19b8bfc411b1f7605759f (diff)
downloadlinux-f631a77ba920f7153a1094d09cd8f2ebbffd0328.tar.xz
mac80211: allow same PN for AMSDU sub-frames
Some hardware (iwlwifi an example) de-aggregate AMSDUs and copy the IV as is to the generated MPDUs, so the same PN appears in multiple packets without being a replay attack. Allow driver to explicitly indicate that a frame is allowed to have the same PN as the previous frame. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'include/net/mac80211.h')
-rw-r--r--include/net/mac80211.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 07ef9378df2b..ce2f6e3be3cf 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1068,6 +1068,9 @@ ieee80211_tx_info_clear_status(struct ieee80211_tx_info *info)
* @RX_FLAG_RADIOTAP_VENDOR_DATA: This frame contains vendor-specific
* radiotap data in the skb->data (before the frame) as described by
* the &struct ieee80211_vendor_radiotap.
+ * @RX_FLAG_ALLOW_SAME_PN: Allow the same PN as same packet before.
+ * This is used for AMSDU subframes which can have the same PN as
+ * the first subframe.
*/
enum mac80211_rx_flags {
RX_FLAG_MMIC_ERROR = BIT(0),
@@ -1101,7 +1104,8 @@ enum mac80211_rx_flags {
RX_FLAG_5MHZ = BIT(29),
RX_FLAG_AMSDU_MORE = BIT(30),
RX_FLAG_RADIOTAP_VENDOR_DATA = BIT(31),
- RX_FLAG_MIC_STRIPPED = BIT_ULL(32),
+ RX_FLAG_MIC_STRIPPED = BIT_ULL(32),
+ RX_FLAG_ALLOW_SAME_PN = BIT_ULL(33),
};
#define RX_FLAG_STBC_SHIFT 26