lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

mac80211: allow drivers to access key sequence counter

Browse Source 
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>
This commit is contained in:
Johannes Berg
2011-07-07 18:58:00 +02:00
committed by John W. Linville
parent 9e26297a56
commit 3ea542d3c2
3 changed files with 137 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
net/mac80211/key.h
View File

@ -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 */