From: Herbert Xu Date: Wed, 10 Oct 2007 22:41:41 +0000 (-0700) Subject: [IPSEC] esp: Remove NAT-T checksum invalidation for BEET X-Git-Tag: v2.6.24-rc1~1454^2~41 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8bd170750400bfa5e14c3dd2e2d0f305e1ab0e57;p=linux-2.6 [IPSEC] esp: Remove NAT-T checksum invalidation for BEET I pointed this out back when this patch was first proposed but it looks like it got lost along the way. The checksum only needs to be ignored for NAT-T in transport mode where we lose the original inner addresses due to NAT. With BEET the inner addresses will be intact so the checksum remains valid. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c index 452910dae8..1af332df72 100644 --- a/net/ipv4/esp4.c +++ b/net/ipv4/esp4.c @@ -261,8 +261,7 @@ static int esp_input(struct xfrm_state *x, struct sk_buff *skb) * as per draft-ietf-ipsec-udp-encaps-06, * section 3.1.2 */ - if (x->props.mode == XFRM_MODE_TRANSPORT || - x->props.mode == XFRM_MODE_BEET) + if (x->props.mode == XFRM_MODE_TRANSPORT) skb->ip_summed = CHECKSUM_UNNECESSARY; }