From: Kazunori MIYAZAWA <miyazawa@linux-ipv6.org>
Date: Fri, 9 Dec 2005 07:11:42 +0000 (-0800)
Subject: [IPv6] IPsec: fix pmtu calculation of esp
X-Git-Tag: firefly_0821_release~38603^2~167^2
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=73d4f84fd001b0be67fea46e84b75e6a7a5da08e;p=firefly-linux-kernel-4.4.55.git

[IPv6] IPsec: fix pmtu calculation of esp

It is a simple bug which uses the wrong member.

This bug does not seriously affect ordinary use of IPsec.
But it is important to pass IPv6 ready logo phase-2
conformance test of IPsec SGW.

Signed-off-by: Kazunori MIYAZAWA <miyazawa@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index 40d9a1935ab5..8bfbe9970793 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -248,7 +248,7 @@ static u32 esp6_get_max_size(struct xfrm_state *x, int mtu)
 	if (esp->conf.padlen)
 		mtu = ALIGN(mtu, esp->conf.padlen);
 
-	return mtu + x->props.header_len + esp->auth.icv_full_len;
+	return mtu + x->props.header_len + esp->auth.icv_trunc_len;
 }
 
 static void esp6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,