From ee70108fa2a7688dc67bfedaeb0c8c46a221effb Mon Sep 17 00:00:00 2001
From: "Janusz.Dziedzic@tieto.com" <Janusz.Dziedzic@tieto.com>
Date: Wed, 9 May 2012 08:11:20 +0300
Subject: mac80211: Add IV-room in the skb for TKIP and WEP
Add IV-room in skb also for TKIP and WEP.
Extend patch: "mac80211: support adding IV-room in the skb for CCMP keys"
Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
net/mac80211/wpa.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
(limited to 'net/mac80211/wpa.c')
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index 0ae23c60968..4d05ad9403a 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -183,7 +183,8 @@ static int tkip_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
u8 *pos;
if (info->control.hw_key &&
- !(info->control.hw_key->flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
+ !(info->control.hw_key->flags & IEEE80211_KEY_FLAG_GENERATE_IV) &&
+ !(info->control.hw_key->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE)) {
/* hwaccel - with no need for software-generated IV */
return 0;
}
@@ -204,6 +205,11 @@ static int tkip_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
memmove(pos, pos + TKIP_IV_LEN, hdrlen);
pos += hdrlen;
+ /* the HW only needs room for the IV, but not the actual IV */
+ if (info->control.hw_key &&
+ (info->control.hw_key->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE))
+ return 0;
+
/* Increase IV for the frame */
spin_lock_irqsave(&key->u.tkip.txlock, flags);
key->u.tkip.tx.iv16++;
--
cgit v1.2.3-70-g09d2
From 7863157d83763a0f1b9ad96c94a1ed3d0372526a Mon Sep 17 00:00:00 2001
From: Arik Nemtsov <arik@wizery.com>
Date: Thu, 10 May 2012 13:21:09 +0300
Subject: mac80211: fix network header location when adding encryption headers
Update the location of the network header when adding encryption
specific headers to a skb. This allows low-level drivers to use the
(now correct) location of the network header.
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
net/mac80211/wep.c | 1 +
net/mac80211/wpa.c | 2 ++
2 files changed, 3 insertions(+)
(limited to 'net/mac80211/wpa.c')
diff --git a/net/mac80211/wep.c b/net/mac80211/wep.c
index e904401684d..c04d401dae9 100644
--- a/net/mac80211/wep.c
+++ b/net/mac80211/wep.c
@@ -111,6 +111,7 @@ static u8 *ieee80211_wep_add_iv(struct ieee80211_local *local,
(info->control.hw_key->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE))
return newhdr + hdrlen;
+ skb_set_network_header(skb, skb_network_offset(skb) + WEP_IV_LEN);
ieee80211_wep_get_iv(local, keylen, keyidx, newhdr + hdrlen);
return newhdr + hdrlen;
}
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index 4d05ad9403a..bdb53aba888 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -203,6 +203,7 @@ static int tkip_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
pos = skb_push(skb, TKIP_IV_LEN);
memmove(pos, pos + TKIP_IV_LEN, hdrlen);
+ skb_set_network_header(skb, skb_network_offset(skb) + TKIP_IV_LEN);
pos += hdrlen;
/* the HW only needs room for the IV, but not the actual IV */
@@ -428,6 +429,7 @@ static int ccmp_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
pos = skb_push(skb, CCMP_HDR_LEN);
memmove(pos, pos + CCMP_HDR_LEN, hdrlen);
+ skb_set_network_header(skb, skb_network_offset(skb) + CCMP_HDR_LEN);
/* the HW only needs room for the IV, but not the actual IV */
if (info->control.hw_key &&
--
cgit v1.2.3-70-g09d2