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mac80211: remove TKIP debug

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The TKIP code hasn't been changed in a very long
time, so it seems unlikely that anyone really has
a need for the TKIP debug code. Remove it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2012-06-22 11:26:47 +02:00
parent c2ebea2097
commit 17efdc4ab8
2 changed files with 1 additions and 53 deletions
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11
net/mac80211/Kconfig
View File

@ -152,17 +152,6 @@ config MAC80211_HT_DEBUG
Do not select this option. Do not select this option.
config MAC80211_TKIP_DEBUG
bool "Verbose TKIP debugging"
depends on MAC80211_DEBUG_MENU
---help---
Selecting this option causes mac80211 to print out
very verbose TKIP debugging messages. It should not
be selected on production systems as those messages
are remotely triggerable.
Do not select this option.
config MAC80211_IBSS_DEBUG config MAC80211_IBSS_DEBUG
bool "Verbose IBSS debugging" bool "Verbose IBSS debugging"
depends on MAC80211_DEBUG_MENU depends on MAC80211_DEBUG_MENU

43
net/mac80211/tkip.c
View File

@ -260,16 +260,6 @@ int ieee80211_tkip_decrypt_data(struct crypto_cipher *tfm,
keyid = pos[3]; keyid = pos[3];
iv32 = get_unaligned_le32(pos + 4); iv32 = get_unaligned_le32(pos + 4);
pos += 8; pos += 8;
#ifdef CONFIG_MAC80211_TKIP_DEBUG
{
int i;
pr_debug("TKIP decrypt: data(len=%zd)", payload_len);
for (i = 0; i < payload_len; i++)
printk(" %02x", payload[i]);
printk("\n");
pr_debug("TKIP decrypt: iv16=%04x iv32=%08x\n", iv16, iv32);
}
#endif
if (!(keyid & (1 << 5))) if (!(keyid & (1 << 5)))
return TKIP_DECRYPT_NO_EXT_IV; return TKIP_DECRYPT_NO_EXT_IV;
@ -280,15 +270,8 @@ int ieee80211_tkip_decrypt_data(struct crypto_cipher *tfm,
if (key->u.tkip.rx[queue].state != TKIP_STATE_NOT_INIT && if (key->u.tkip.rx[queue].state != TKIP_STATE_NOT_INIT &&
(iv32 < key->u.tkip.rx[queue].iv32 || (iv32 < key->u.tkip.rx[queue].iv32 ||
(iv32 == key->u.tkip.rx[queue].iv32 && (iv32 == key->u.tkip.rx[queue].iv32 &&
iv16 <= key->u.tkip.rx[queue].iv16))) { iv16 <= key->u.tkip.rx[queue].iv16)))
#ifdef CONFIG_MAC80211_TKIP_DEBUG
pr_debug("TKIP replay detected for RX frame from %pM (RX IV (%04x,%02x) <= prev. IV (%04x,%02x)\n",
ta, iv32, iv16,
key->u.tkip.rx[queue].iv32,
key->u.tkip.rx[queue].iv16);
#endif
return TKIP_DECRYPT_REPLAY; return TKIP_DECRYPT_REPLAY;
}
if (only_iv) { if (only_iv) {
res = TKIP_DECRYPT_OK; res = TKIP_DECRYPT_OK;
@ -300,21 +283,6 @@ int ieee80211_tkip_decrypt_data(struct crypto_cipher *tfm,
key->u.tkip.rx[queue].iv32 != iv32) { key->u.tkip.rx[queue].iv32 != iv32) {
/* IV16 wrapped around - perform TKIP phase 1 */ /* IV16 wrapped around - perform TKIP phase 1 */
tkip_mixing_phase1(tk, &key->u.tkip.rx[queue], ta, iv32); tkip_mixing_phase1(tk, &key->u.tkip.rx[queue], ta, iv32);
#ifdef CONFIG_MAC80211_TKIP_DEBUG
{
int i;
u8 key_offset = NL80211_TKIP_DATA_OFFSET_ENCR_KEY;
pr_debug("TKIP decrypt: Phase1 TA=%pM TK=", ta);
for (i = 0; i < 16; i++)
printk("%02x ",
key->conf.key[key_offset + i]);
printk("\n");
pr_debug("TKIP decrypt: P1K=");
for (i = 0; i < 5; i++)
printk("%04x ", key->u.tkip.rx[queue].p1k[i]);
printk("\n");
}
#endif
} }
if (key->local->ops->update_tkip_key && if (key->local->ops->update_tkip_key &&
key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
@ -330,15 +298,6 @@ int ieee80211_tkip_decrypt_data(struct crypto_cipher *tfm,
} }
tkip_mixing_phase2(tk, &key->u.tkip.rx[queue], iv16, rc4key); tkip_mixing_phase2(tk, &key->u.tkip.rx[queue], iv16, rc4key);
#ifdef CONFIG_MAC80211_TKIP_DEBUG
{
int i;
pr_debug("TKIP decrypt: Phase2 rc4key=");
for (i = 0; i < 16; i++)
printk("%02x ", rc4key[i]);
printk("\n");
}
#endif
res = ieee80211_wep_decrypt_data(tfm, rc4key, 16, pos, payload_len - 12); res = ieee80211_wep_decrypt_data(tfm, rc4key, 16, pos, payload_len - 12);
done: done: