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authorHarvey Harrison <harvey.harrison@gmail.com>2008-05-14 16:26:20 -0700
committerJohn W. Linville <linville@tuxdriver.com>2008-05-21 21:47:50 -0400
commit3c83809917dce9bbd880f6b08edc2d0ccac14a25 (patch)
tree7c4795c3f32d3f2d3206e36e50fd78cb02c48700 /net/mac80211/tkip.c
parent82a57447fa66bf138cd55206f33eea21ee257335 (diff)
downloadlinux-stericsson-3c83809917dce9bbd880f6b08edc2d0ccac14a25.tar.gz
mac80211: tkip.c use struct tkip_ctx in phase 2 key mixing
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: "John W. Linville" <linville@tuxdriver.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/tkip.c')
-rw-r--r--net/mac80211/tkip.c17
1 files changed, 7 insertions, 10 deletions
diff --git a/net/mac80211/tkip.c b/net/mac80211/tkip.c
index e9ee247e13f7..a00cf1ea7719 100644
--- a/net/mac80211/tkip.c
+++ b/net/mac80211/tkip.c
@@ -95,10 +95,12 @@ static void tkip_mixing_phase1(struct ieee80211_key *key, const u8 *ta,
ctx->initialized = 1;
}
-static void tkip_mixing_phase2(const u16 *p1k, const u8 *tk, u16 tsc_IV16,
- u8 *rc4key)
+static void tkip_mixing_phase2(struct ieee80211_key *key, struct tkip_ctx *ctx,
+ u16 tsc_IV16, u8 *rc4key)
{
u16 ppk[6];
+ const u16 *p1k = ctx->p1k;
+ const u8 *tk = &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY];
int i;
ppk[0] = p1k[0];
@@ -152,9 +154,7 @@ static void ieee80211_tkip_gen_rc4key(struct ieee80211_key *key, u8 *ta,
if (key->u.tkip.tx.iv16 == 0 || !key->u.tkip.tx.initialized)
tkip_mixing_phase1(key, ta, &key->u.tkip.tx, key->u.tkip.tx.iv32);
- tkip_mixing_phase2(key->u.tkip.tx.p1k,
- &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY],
- key->u.tkip.tx.iv16, rc4key);
+ tkip_mixing_phase2(key, &key->u.tkip.tx, key->u.tkip.tx.iv16, rc4key);
}
void ieee80211_get_tkip_key(struct ieee80211_key_conf *keyconf,
@@ -197,8 +197,7 @@ void ieee80211_get_tkip_key(struct ieee80211_key_conf *keyconf,
return;
}
- tkip_mixing_phase2(key->u.tkip.tx.p1k,
- &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY], iv16, outkey);
+ tkip_mixing_phase2(key, &key->u.tkip.tx, iv16, outkey);
}
EXPORT_SYMBOL(ieee80211_get_tkip_key);
@@ -315,9 +314,7 @@ int ieee80211_tkip_decrypt_data(struct crypto_blkcipher *tfm,
}
}
- tkip_mixing_phase2(key->u.tkip.rx[queue].p1k,
- &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY],
- iv16, rc4key);
+ tkip_mixing_phase2(key, &key->u.tkip.rx[queue], iv16, rc4key);
#ifdef CONFIG_TKIP_DEBUG
{
int i;