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Commit 17efdc4a authored by Johannes Berg's avatar Johannes Berg
Browse files

mac80211: remove TKIP debug 



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: default avatarJohannes Berg <johannes.berg@intel.com>
parent c2ebea20

net/mac80211/Kconfig

+0 −11
Original line number Diff line number Diff line
@@ -152,17 +152,6 @@ config MAC80211_HT_DEBUG 


	  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

	bool "Verbose IBSS debugging"

	depends on MAC80211_DEBUG_MENU

net/mac80211/tkip.c

+1 −42
Original line number Diff line number Diff line
@@ -260,16 +260,6 @@ int ieee80211_tkip_decrypt_data(struct crypto_cipher *tfm, 
	keyid = pos[3];

	iv32 = get_unaligned_le32(pos + 4);

	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)))

		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 &&

	    (iv32 < key->u.tkip.rx[queue].iv32 ||

	     (iv32 == key->u.tkip.rx[queue].iv32 &&

	      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

	      iv16 <= key->u.tkip.rx[queue].iv16)))

		return TKIP_DECRYPT_REPLAY;

	}



	if (only_iv) {

		res = TKIP_DECRYPT_OK;
@@ -300,21 +283,6 @@ int ieee80211_tkip_decrypt_data(struct crypto_cipher *tfm, 
	    key->u.tkip.rx[queue].iv32 != iv32) {

		/* IV16 wrapped around - perform TKIP phase 1 */

		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 &&

	    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);

#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);

 done: