From a2d73e60bb018da74ba508943c79c83659f3a883 Mon Sep 17 00:00:00 2001 From: Zhu Yi Date: Wed, 13 Jul 2005 12:24:51 -0500 Subject: [PATCH] Fix hardware encryption (both WEP and AES) doesn't work with fragmentation. Firmware sends received packets with double sized ICV/MIC. Signed-off-by: James Ketrenos --- drivers/net/wireless/ipw2200.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/ipw2200.c b/drivers/net/wireless/ipw2200.c index 1b6f0277a3e9..8f7e9ac37f86 100644 --- a/drivers/net/wireless/ipw2200.c +++ b/drivers/net/wireless/ipw2200.c @@ -7587,7 +7587,10 @@ static void ipw_rebuild_decrypted_skb(struct ipw_priv *priv, memmove(skb->data + IEEE80211_3ADDR_LEN, skb->data + IEEE80211_3ADDR_LEN + 8, skb->len - IEEE80211_3ADDR_LEN - 8); - skb_trim(skb, skb->len - 8); /* MIC */ + if (fc & IEEE80211_FCTL_MOREFRAGS) + skb_trim(skb, skb->len - 16); /* 2*MIC */ + else + skb_trim(skb, skb->len - 8); /* MIC */ break; case SEC_LEVEL_2: break; @@ -7596,7 +7599,10 @@ static void ipw_rebuild_decrypted_skb(struct ipw_priv *priv, memmove(skb->data + IEEE80211_3ADDR_LEN, skb->data + IEEE80211_3ADDR_LEN + 4, skb->len - IEEE80211_3ADDR_LEN - 4); - skb_trim(skb, skb->len - 4); /* ICV */ + if (fc & IEEE80211_FCTL_MOREFRAGS) + skb_trim(skb, skb->len - 8); /* 2*ICV */ + else + skb_trim(skb, skb->len - 4); /* ICV */ break; case SEC_LEVEL_0: break; -- 2.39.5