From c9308b06c049a107edfbd4e5271771564eb6024d Mon Sep 17 00:00:00 2001 From: Daniel Drake Date: Wed, 27 Sep 2006 03:50:31 +0100 Subject: [PATCH] ieee80211: Move IV/ICV stripping into ieee80211_rx This patch adds a host_strip_iv_icv flag to ieee80211 which indicates that ieee80211_rx should strip the IV/ICV/other security features from the payload. This saves on some memmove() calls in the driver and seems like something that belongs in the stack as it can be used by bcm43xx, ipw2200, and zd1211rw I will submit the ipw2200 patch separately as it needs testing. This patch also adds some sensible variable reuse (idx vs keyidx) in ieee80211_rx Signed-off-by: Daniel Drake Acked-by: Johannes Berg Signed-off-by: John W. Linville --- drivers/net/wireless/bcm43xx/bcm43xx_xmit.c | 19 ------------------- 1 file changed, 19 deletions(-) (limited to 'drivers/net/wireless/bcm43xx/bcm43xx_xmit.c') diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_xmit.c b/drivers/net/wireless/bcm43xx/bcm43xx_xmit.c index 0159e4e93201..a957bc861382 100644 --- a/drivers/net/wireless/bcm43xx/bcm43xx_xmit.c +++ b/drivers/net/wireless/bcm43xx/bcm43xx_xmit.c @@ -543,25 +543,6 @@ int bcm43xx_rx(struct bcm43xx_private *bcm, break; } - frame_ctl = le16_to_cpu(wlhdr->frame_ctl); - if ((frame_ctl & IEEE80211_FCTL_PROTECTED) && !bcm->ieee->host_decrypt) { - frame_ctl &= ~IEEE80211_FCTL_PROTECTED; - wlhdr->frame_ctl = cpu_to_le16(frame_ctl); - /* trim IV and ICV */ - /* FIXME: this must be done only for WEP encrypted packets */ - if (skb->len < 32) { - dprintkl(KERN_ERR PFX "RX packet dropped (PROTECTED flag " - "set and length < 32)\n"); - return -EINVAL; - } else { - memmove(skb->data + 4, skb->data, 24); - skb_pull(skb, 4); - skb_trim(skb, skb->len - 4); - stats.len -= 8; - } - wlhdr = (struct ieee80211_hdr_4addr *)(skb->data); - } - switch (WLAN_FC_GET_TYPE(frame_ctl)) { case IEEE80211_FTYPE_MGMT: ieee80211_rx_mgt(bcm->ieee, wlhdr, &stats); -- cgit v1.2.1 From b6d2b1db0637ff35127f3cc38c04f289a0ee0579 Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Wed, 8 Nov 2006 11:04:49 -0600 Subject: [PATCH] bcm43xx: correct "Move IV/ICV stripping into ieee80211_rx" In the patch sent by Daniel Drake under the title "[PATCH] ieee80211: Move IV/ICV stripping into ieee80211_rx", a needed line was accidentally removed. (NOTE: I'm pretty sure this was my fault, not Daniel's. -- JWL) Signed-off-by: Larry Finger Signed-off-by: John W. Linville --- drivers/net/wireless/bcm43xx/bcm43xx_xmit.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/net/wireless/bcm43xx/bcm43xx_xmit.c') diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_xmit.c b/drivers/net/wireless/bcm43xx/bcm43xx_xmit.c index a957bc861382..3e2462671690 100644 --- a/drivers/net/wireless/bcm43xx/bcm43xx_xmit.c +++ b/drivers/net/wireless/bcm43xx/bcm43xx_xmit.c @@ -543,6 +543,7 @@ int bcm43xx_rx(struct bcm43xx_private *bcm, break; } + frame_ctl = le16_to_cpu(wlhdr->frame_ctl); switch (WLAN_FC_GET_TYPE(frame_ctl)) { case IEEE80211_FTYPE_MGMT: ieee80211_rx_mgt(bcm->ieee, wlhdr, &stats); -- cgit v1.2.1