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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>
This commit is contained in:
Harvey Harrison 2008-05-14 16:26:20 -07:00 committed by John W. Linville
parent 82a57447fa
commit 3c83809917
1 changed files with 7 additions and 10 deletions
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17
net/mac80211/tkip.c
View File

@ -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;