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authorJohannes Berg <johannes.berg@intel.com>2011-07-07 20:58:00 +0400
committerJohn W. Linville <linville@tuxdriver.com>2011-07-08 19:42:22 +0400
commit3ea542d3c2862142ae511fac5ce2dfc7419dcc53 (patch)
tree472807c6d2a0aefa050a63cc34d9e2a2f7a3f2a6 /net/mac80211/key.h
parent9e26297a56453315ae6829aec609b5a6309af7b4 (diff)
downloadlinux-3ea542d3c2862142ae511fac5ce2dfc7419dcc53.tar.xz
mac80211: allow drivers to access key sequence counter
In order to implement GTK rekeying, the device needs to be able to encrypt frames with the right PN/IV and check the PN/IV in RX frames. To be able to tell it about all those counters, we need to be able to get them from mac80211, this adds the required API. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/key.h')
-rw-r--r--net/mac80211/key.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/net/mac80211/key.h b/net/mac80211/key.h
index beb9c20ff48c..86b216b01415 100644
--- a/net/mac80211/key.h
+++ b/net/mac80211/key.h
@@ -28,6 +28,7 @@
#define CCMP_PN_LEN 6
#define TKIP_IV_LEN 8
#define TKIP_ICV_LEN 4
+#define CMAC_PN_LEN 6
#define NUM_RX_DATA_QUEUES 16
@@ -89,13 +90,13 @@ struct ieee80211_key {
* frames and the last counter is used with Robust
* Management frames.
*/
- u8 rx_pn[NUM_RX_DATA_QUEUES + 1][6];
+ u8 rx_pn[NUM_RX_DATA_QUEUES + 1][CCMP_PN_LEN];
struct crypto_cipher *tfm;
u32 replays; /* dot11RSNAStatsCCMPReplays */
} ccmp;
struct {
atomic64_t tx_pn;
- u8 rx_pn[6];
+ u8 rx_pn[CMAC_PN_LEN];
struct crypto_cipher *tfm;
u32 replays; /* dot11RSNAStatsCMACReplays */
u32 icverrors; /* dot11RSNAStatsCMACICVErrors */