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authorLi RongQing <roy.qing.li@gmail.com>2013-01-08 08:41:12 +0100
committerSteffen Klassert <steffen.klassert@secunet.com>2013-01-08 12:41:30 +0100
commita9403f8aeb3e7dba6988d6cbe436e6521894e427 (patch)
tree5dda4e7fde169a8ffba69b24bd4487b249529062 /net/ipv6/esp6.c
parentah4/esp4: set transport header correctly for IPsec tunnel mode. (diff)
downloadlinux-a9403f8aeb3e7dba6988d6cbe436e6521894e427.tar.xz
linux-a9403f8aeb3e7dba6988d6cbe436e6521894e427.zip
ah6/esp6: set transport header correctly for IPsec tunnel mode.
IPsec tunnel does not set ECN field to CE in inner header when the ECN field in the outer header is CE, and the ECN field in the inner header is ECT(0) or ECT(1). The cause is ipip6_hdr() does not return the correct address of inner header since skb->transport-header is not the inner header after esp6_input_done2(), or ah6_input(). Signed-off-by: Li RongQing <roy.qing.li@gmail.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Diffstat (limited to 'net/ipv6/esp6.c')
-rw-r--r--net/ipv6/esp6.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index 282f3723ee19..40ffd72243a4 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -300,7 +300,10 @@ static int esp_input_done2(struct sk_buff *skb, int err)
pskb_trim(skb, skb->len - alen - padlen - 2);
__skb_pull(skb, hlen);
- skb_set_transport_header(skb, -hdr_len);
+ if (x->props.mode == XFRM_MODE_TUNNEL)
+ skb_reset_transport_header(skb);
+ else
+ skb_set_transport_header(skb, -hdr_len);
err = nexthdr[1];