From: Herbert Xu Date: Wed, 14 Dec 2005 20:55:24 +0000 (-0800) Subject: [GRE]: Fix hardware checksum modification X-Git-Tag: v2.6.15-rc6~61^2~2 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1542272a60ab9c0655a13ead8b7d7a661365f9fb;p=linux-2.6 [GRE]: Fix hardware checksum modification The skb_postpull_rcsum introduced a bug to the checksum modification. Although the length pulled is offset bytes, the origin of the pulling is the GRE header, not the IP header. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index a4c347c3b8..46f9d9cf7a 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -618,7 +618,7 @@ static int ipgre_rcv(struct sk_buff *skb) skb->mac.raw = skb->nh.raw; skb->nh.raw = __pskb_pull(skb, offset); - skb_postpull_rcsum(skb, skb->mac.raw, offset); + skb_postpull_rcsum(skb, skb->h.raw, offset); memset(&(IPCB(skb)->opt), 0, sizeof(struct ip_options)); skb->pkt_type = PACKET_HOST; #ifdef CONFIG_NET_IPGRE_BROADCAST