X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=net%2Fmac80211%2Ftkip.c;h=34b32bc8f609d84d5a2fb0473d1be05e0f553930;hb=133b822638ff01eb1e32e1917b197c40ed095ddd;hp=8a7dac742b71c00b2af071583315eae2991d6f88;hpb=7c70537f97fe35f46762247a4bda72c16d585736;p=safe%2Fjmp%2Flinux-2.6

diff --git a/net/mac80211/tkip.c b/net/mac80211/tkip.c
index 8a7dac7..34b32bc 100644
--- a/net/mac80211/tkip.c
+++ b/net/mac80211/tkip.c
@@ -153,42 +153,44 @@ void ieee80211_get_tkip_key(struct ieee80211_key_conf *keyconf,
 {
 	struct ieee80211_key *key = (struct ieee80211_key *)
 			container_of(keyconf, struct ieee80211_key, conf);
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-	u8 *data = (u8 *) hdr;
-	u16 fc = le16_to_cpu(hdr->frame_control);
-	int hdr_len = ieee80211_get_hdrlen(fc);
-	u8 *tk = &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY];
-	u8 *ta = hdr->addr2;
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+	u8 *data;
+	const u8 *tk;
+	struct tkip_ctx *ctx;
 	u16 iv16;
 	u32 iv32;
 
-	iv16 = data[hdr_len + 2] | (data[hdr_len] << 8);
-	iv32 = get_unaligned_le32(data + hdr_len + 4);
+	data = (u8 *)hdr + ieee80211_hdrlen(hdr->frame_control);
+	iv16 = data[2] | (data[0] << 8);
+	iv32 = get_unaligned_le32(&data[4]);
 
-#ifdef CONFIG_TKIP_DEBUG
+	tk = &key->conf.key[NL80211_TKIP_DATA_OFFSET_ENCR_KEY];
+	ctx = &key->u.tkip.tx;
+
+#ifdef CONFIG_MAC80211_TKIP_DEBUG
 	printk(KERN_DEBUG "TKIP encrypt: iv16 = 0x%04x, iv32 = 0x%08x\n",
 			iv16, iv32);
 
-	if (iv32 != key->u.tkip.tx.iv32) {
+	if (iv32 != ctx->iv32) {
 		printk(KERN_DEBUG "skb: iv32 = 0x%08x key: iv32 = 0x%08x\n",
-			iv32, key->u.tkip.tx.iv32);
+			iv32, ctx->iv32);
 		printk(KERN_DEBUG "Wrap around of iv16 in the middle of a "
 			"fragmented packet\n");
 	}
-#endif /* CONFIG_TKIP_DEBUG */
+#endif
 
 	/* Update the p1k only when the iv16 in the packet wraps around, this
 	 * might occur after the wrap around of iv16 in the key in case of
 	 * fragmented packets. */
-	if (iv16 == 0 || !key->u.tkip.tx.initialized)
-		tkip_mixing_phase1(tk, &key->u.tkip.tx, ta, iv32);
+	if (iv16 == 0 || !ctx->initialized)
+		tkip_mixing_phase1(tk, ctx, hdr->addr2, iv32);
 
 	if (type == IEEE80211_TKIP_P1_KEY) {
-		memcpy(outkey, key->u.tkip.tx.p1k, sizeof(u16) * 5);
+		memcpy(outkey, ctx->p1k, sizeof(u16) * 5);
 		return;
 	}
 
-	tkip_mixing_phase2(tk, &key->u.tkip.tx, iv16, outkey);
+	tkip_mixing_phase2(tk, ctx, iv16, outkey);
 }
 EXPORT_SYMBOL(ieee80211_get_tkip_key);
 
@@ -203,7 +205,7 @@ void ieee80211_tkip_encrypt_data(struct crypto_blkcipher *tfm,
 {
 	u8 rc4key[16];
 	struct tkip_ctx *ctx = &key->u.tkip.tx;
-	const u8 *tk = &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY];
+	const u8 *tk = &key->conf.key[NL80211_TKIP_DATA_OFFSET_ENCR_KEY];
 
 	/* Calculate per-packet key */
 	if (ctx->iv16 == 0 || !ctx->initialized)
@@ -229,7 +231,7 @@ int ieee80211_tkip_decrypt_data(struct crypto_blkcipher *tfm,
 	u32 iv16;
 	u8 rc4key[16], keyid, *pos = payload;
 	int res;
-	const u8 *tk = &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY];
+	const u8 *tk = &key->conf.key[NL80211_TKIP_DATA_OFFSET_ENCR_KEY];
 
 	if (payload_len < 12)
 		return -1;
@@ -238,7 +240,7 @@ int ieee80211_tkip_decrypt_data(struct crypto_blkcipher *tfm,
 	keyid = pos[3];
 	iv32 = get_unaligned_le32(pos + 4);
 	pos += 8;
-#ifdef CONFIG_TKIP_DEBUG
+#ifdef CONFIG_MAC80211_TKIP_DEBUG
 	{
 		int i;
 		printk(KERN_DEBUG "TKIP decrypt: data(len=%zd)", payload_len);
@@ -248,7 +250,7 @@ int ieee80211_tkip_decrypt_data(struct crypto_blkcipher *tfm,
 		printk(KERN_DEBUG "TKIP decrypt: iv16=%04x iv32=%08x\n",
 		       iv16, iv32);
 	}
-#endif /* CONFIG_TKIP_DEBUG */
+#endif
 
 	if (!(keyid & (1 << 5)))
 		return TKIP_DECRYPT_NO_EXT_IV;
@@ -260,14 +262,14 @@ int ieee80211_tkip_decrypt_data(struct crypto_blkcipher *tfm,
 	    (iv32 < key->u.tkip.rx[queue].iv32 ||
 	     (iv32 == key->u.tkip.rx[queue].iv32 &&
 	      iv16 <= key->u.tkip.rx[queue].iv16))) {
-#ifdef CONFIG_TKIP_DEBUG
+#ifdef CONFIG_MAC80211_TKIP_DEBUG
 		DECLARE_MAC_BUF(mac);
 		printk(KERN_DEBUG "TKIP replay detected for RX frame from "
 		       "%s (RX IV (%04x,%02x) <= prev. IV (%04x,%02x)\n",
 		       print_mac(mac, ta),
 		       iv32, iv16, key->u.tkip.rx[queue].iv32,
 		       key->u.tkip.rx[queue].iv16);
-#endif /* CONFIG_TKIP_DEBUG */
+#endif
 		return TKIP_DECRYPT_REPLAY;
 	}
 
@@ -281,28 +283,28 @@ int ieee80211_tkip_decrypt_data(struct crypto_blkcipher *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_TKIP_DEBUG
+#ifdef CONFIG_MAC80211_TKIP_DEBUG
 		{
 			int i;
+			u8 key_offset = NL80211_TKIP_DATA_OFFSET_ENCR_KEY;
 			DECLARE_MAC_BUF(mac);
 			printk(KERN_DEBUG "TKIP decrypt: Phase1 TA=%s"
 			       " TK=", print_mac(mac, ta));
 			for (i = 0; i < 16; i++)
 				printk("%02x ",
-				       key->conf.key[
-						ALG_TKIP_TEMP_ENCR_KEY + i]);
+				       key->conf.key[key_offset + i]);
 			printk("\n");
 			printk(KERN_DEBUG "TKIP decrypt: P1K=");
 			for (i = 0; i < 5; i++)
 				printk("%04x ", key->u.tkip.rx[queue].p1k[i]);
 			printk("\n");
 		}
-#endif /* CONFIG_TKIP_DEBUG */
+#endif
 		if (key->local->ops->update_tkip_key &&
 			key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) {
 			u8 bcast[ETH_ALEN] =
 				{0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
-			u8 *sta_addr = key->sta->addr;
+			u8 *sta_addr = key->sta->sta.addr;
 
 			if (is_multicast_ether_addr(ra))
 				sta_addr = bcast;
@@ -314,7 +316,7 @@ int ieee80211_tkip_decrypt_data(struct crypto_blkcipher *tfm,
 	}
 
 	tkip_mixing_phase2(tk, &key->u.tkip.rx[queue], iv16, rc4key);
-#ifdef CONFIG_TKIP_DEBUG
+#ifdef CONFIG_MAC80211_TKIP_DEBUG
 	{
 		int i;
 		printk(KERN_DEBUG "TKIP decrypt: Phase2 rc4key=");
@@ -322,7 +324,7 @@ int ieee80211_tkip_decrypt_data(struct crypto_blkcipher *tfm,
 			printk("%02x ", rc4key[i]);
 		printk("\n");
 	}
-#endif /* CONFIG_TKIP_DEBUG */
+#endif
 
 	res = ieee80211_wep_decrypt_data(tfm, rc4key, 16, pos, payload_len - 12);
  done: