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authorJohannes Berg <johannes.berg@intel.com>2011-07-13 19:50:34 +0200
committerJohn W. Linville <linville@tuxdriver.com>2011-07-15 13:38:32 -0400
commit8bca5d815311f53ada13b62f5e590df40fef317e (patch)
tree7cd6d9d7804c0aa86e1bf4226c4a8196acc3a5c7 /net/mac80211/tkip.c
parent66760eac005d569393bac34136bcbb8af55d8a5a (diff)
downloadlinux-stericsson-8bca5d815311f53ada13b62f5e590df40fef317e.tar.gz
mac80211: allow driver access to TKIP RX P1K
When the driver wants to pre-program the TKIP RX phase 1 key, it needs to be able to obtain it for the peer's TA. Add API to allow it to generate it. The generation uses a dummy on-stack context since it doesn't know the RX queue. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/tkip.c')
-rw-r--r--net/mac80211/tkip.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/net/mac80211/tkip.c b/net/mac80211/tkip.c
index cc79e697cdb2..f49d00a4c7fd 100644
--- a/net/mac80211/tkip.c
+++ b/net/mac80211/tkip.c
@@ -185,6 +185,17 @@ void ieee80211_get_tkip_p1k_iv(struct ieee80211_key_conf *keyconf,
}
EXPORT_SYMBOL(ieee80211_get_tkip_p1k_iv);
+void ieee80211_get_tkip_rx_p1k(struct ieee80211_key_conf *keyconf,
+ const u8 *ta, u32 iv32, u16 *p1k)
+{
+ const u8 *tk = &keyconf->key[NL80211_TKIP_DATA_OFFSET_ENCR_KEY];
+ struct tkip_ctx ctx;
+
+ tkip_mixing_phase1(tk, &ctx, ta, iv32);
+ memcpy(p1k, ctx.p1k, sizeof(ctx.p1k));
+}
+EXPORT_SYMBOL(ieee80211_get_tkip_rx_p1k);
+
void ieee80211_get_tkip_p2k(struct ieee80211_key_conf *keyconf,
struct sk_buff *skb, u8 *p2k)
{