From 70217d7f83a12e0a16c726951ddf8f7f0ba7d1a4 Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Sun, 22 Jun 2008 16:45:23 -0700 Subject: [PATCH] mac80211: wep.c use new frame control helpers Signed-off-by: Harvey Harrison Signed-off-by: John W. Linville --- net/mac80211/wep.c | 39 +++++++++++++++------------------------ 1 file changed, 15 insertions(+), 24 deletions(-) diff --git a/net/mac80211/wep.c b/net/mac80211/wep.c index e7b6344..35b664d 100644 --- a/net/mac80211/wep.c +++ b/net/mac80211/wep.c @@ -84,20 +84,17 @@ static u8 *ieee80211_wep_add_iv(struct ieee80211_local *local, struct sk_buff *skb, struct ieee80211_key *key) { - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - u16 fc; - int hdrlen; + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; + unsigned int hdrlen; u8 *newhdr; - fc = le16_to_cpu(hdr->frame_control); - fc |= IEEE80211_FCTL_PROTECTED; - hdr->frame_control = cpu_to_le16(fc); + hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); if (WARN_ON(skb_tailroom(skb) < WEP_ICV_LEN || skb_headroom(skb) < WEP_IV_LEN)) return NULL; - hdrlen = ieee80211_get_hdrlen(fc); + hdrlen = ieee80211_hdrlen(hdr->frame_control); newhdr = skb_push(skb, WEP_IV_LEN); memmove(newhdr, newhdr + WEP_IV_LEN, hdrlen); ieee80211_wep_get_iv(local, key, newhdr + hdrlen); @@ -109,12 +106,10 @@ static void ieee80211_wep_remove_iv(struct ieee80211_local *local, struct sk_buff *skb, struct ieee80211_key *key) { - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - u16 fc; - int hdrlen; + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; + unsigned int hdrlen; - fc = le16_to_cpu(hdr->frame_control); - hdrlen = ieee80211_get_hdrlen(fc); + hdrlen = ieee80211_hdrlen(hdr->frame_control); memmove(skb->data + WEP_IV_LEN, skb->data, hdrlen); skb_pull(skb, WEP_IV_LEN); } @@ -224,17 +219,15 @@ int ieee80211_wep_decrypt(struct ieee80211_local *local, struct sk_buff *skb, u32 klen; u8 *rc4key; u8 keyidx; - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - u16 fc; - int hdrlen; + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; + unsigned int hdrlen; size_t len; int ret = 0; - fc = le16_to_cpu(hdr->frame_control); - if (!(fc & IEEE80211_FCTL_PROTECTED)) + if (!ieee80211_has_protected(hdr->frame_control)) return -1; - hdrlen = ieee80211_get_hdrlen(fc); + hdrlen = ieee80211_hdrlen(hdr->frame_control); if (skb->len < 8 + hdrlen) return -1; @@ -281,17 +274,15 @@ int ieee80211_wep_decrypt(struct ieee80211_local *local, struct sk_buff *skb, u8 * ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key) { - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - u16 fc; - int hdrlen; + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; + unsigned int hdrlen; u8 *ivpos; u32 iv; - fc = le16_to_cpu(hdr->frame_control); - if (!(fc & IEEE80211_FCTL_PROTECTED)) + if (!ieee80211_has_protected(hdr->frame_control)) return NULL; - hdrlen = ieee80211_get_hdrlen(fc); + hdrlen = ieee80211_hdrlen(hdr->frame_control); ivpos = skb->data + hdrlen; iv = (ivpos[0] << 16) | (ivpos[1] << 8) | ivpos[2]; -- 2.7.4