X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=net%2Fieee80211%2Fieee80211_crypt_wep.c;h=3fa30c40779f6b7c8242541a6a484440409a40d3;hb=a1bc6eb4b499ae67ada9a01660010580b6569403;hp=7a95c3d8131425bb8c42bbabcb629747f06672f0;hpb=cece901481bafbf14de8cbd3a89ae869ea881055;p=linux-2.6

diff --git a/net/ieee80211/ieee80211_crypt_wep.c b/net/ieee80211/ieee80211_crypt_wep.c
index 7a95c3d813..3fa30c4077 100644
--- a/net/ieee80211/ieee80211_crypt_wep.c
+++ b/net/ieee80211/ieee80211_crypt_wep.c
@@ -1,7 +1,7 @@
 /*
  * Host AP crypt: host-based WEP encryption implementation for Host AP driver
  *
- * Copyright (c) 2002-2004, Jouni Malinen <jkmaline@cc.hut.fi>
+ * Copyright (c) 2002-2004, Jouni Malinen <j@w1.fi>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -14,6 +14,7 @@
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/random.h>
+#include <linux/scatterlist.h>
 #include <linux/skbuff.h>
 #include <linux/mm.h>
 #include <asm/string.h>
@@ -21,7 +22,6 @@
 #include <net/ieee80211.h>
 
 #include <linux/crypto.h>
-#include <asm/scatterlist.h>
 #include <linux/crc32.h>
 
 MODULE_AUTHOR("Jouni Malinen");
@@ -97,7 +97,7 @@ static int prism2_wep_build_iv(struct sk_buff *skb, int hdr_len,
 	struct prism2_wep_data *wep = priv;
 	u32 klen, len;
 	u8 *pos;
-	
+
 	if (skb_headroom(skb) < 4 || skb->len < hdr_len)
 		return -1;
 
@@ -146,17 +146,17 @@ static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
 	/* other checks are in prism2_wep_build_iv */
 	if (skb_tailroom(skb) < 4)
 		return -1;
-	
+
 	/* add the IV to the frame */
 	if (prism2_wep_build_iv(skb, hdr_len, NULL, 0, priv))
 		return -1;
-	
+
 	/* Copy the IV into the first 3 bytes of the key */
-	memcpy(key, skb->data + hdr_len, 3);
+	skb_copy_from_linear_data_offset(skb, hdr_len, key, 3);
 
 	/* Copy rest of the WEP key (the secret part) */
 	memcpy(key + 3, wep->key, wep->key_len);
-	
+
 	len = skb->len - hdr_len - 4;
 	pos = skb->data + hdr_len + 4;
 	klen = 3 + wep->key_len;
@@ -170,9 +170,7 @@ static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
 	icv[3] = crc >> 24;
 
 	crypto_blkcipher_setkey(wep->tx_tfm, key, klen);
-	sg.page = virt_to_page(pos);
-	sg.offset = offset_in_page(pos);
-	sg.length = len + 4;
+	sg_init_one(&sg, pos, len + 4);
 	return crypto_blkcipher_encrypt(&desc, &sg, &sg, len + 4);
 }
 
@@ -212,9 +210,7 @@ static int prism2_wep_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
 	plen = skb->len - hdr_len - 8;
 
 	crypto_blkcipher_setkey(wep->rx_tfm, key, klen);
-	sg.page = virt_to_page(pos);
-	sg.offset = offset_in_page(pos);
-	sg.length = plen + 4;
+	sg_init_one(&sg, pos, plen + 4);
 	if (crypto_blkcipher_decrypt(&desc, &sg, &sg, plen + 4))
 		return -7;