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From: David Miller <davem@davemloft•net>
To: nakam@linux-ipv6•org
Cc: yoshfuji@linux-ipv6•org, anttit@tcs•hut.fi, vnuorval@tcs•hut.fi,
	netdev@vger•kernel.org, usagi-core@linux-ipv6•org
Subject: Re: [PATCH 1/23] [PATCH] [XFRM]: Add XFRM_MODE_xxx for future use.
Date: Tue, 01 Aug 2006 16:52:32 -0700 (PDT)	[thread overview]
Message-ID: <20060801.165232.95060501.davem@davemloft.net> (raw)
In-Reply-To: <11541653852481-git-send-email-nakam@linux-ipv6.org>

From: Masahide NAKAMURA <nakam@linux-ipv6•org>
Date: Sat, 29 Jul 2006 18:29:45 +0900

> Transformation mode is used as either IPsec transport or tunnel.
> It is required to add two more items, route-optimization and inbound trigger
> by Mobile IPv6.
> Based on MIPL2 kernel patch.

This change looks fine, but please explain the inconsistent
transformation done in xfrm4_encap() vs. xfrm6_encap().

In xfrm4_encap() the test is modified like this:

> -	if (!x->props.mode) {
> +	if (x->props.mode == XFRM_MODE_TRANSPORT) {

specifically allowing only XFRM_MODE_TRANSPORT, whereas in
xfrm6_encap() we do this:

> -	if (!x->props.mode) {
> +	if (x->props.mode != XFRM_MODE_TUNNEL) {

which changes the test to match all non-tunnels.

Unless there is a reason to do things differently, we should make the
checks identical even if ipv4 will never use values other than
XFRM_MODE_TUNNEL and XFRM_MODE_TRANSPORT.

  reply	other threads:[~2006-08-01 23:52 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-07-29  9:29 [PATCH 1/23] [PATCH] [XFRM]: Add XFRM_MODE_xxx for future use Masahide NAKAMURA
2006-08-01 23:52 ` David Miller [this message]
2006-08-02  1:34   ` Masahide NAKAMURA
2006-08-02  4:53 ` Herbert Xu
2006-08-02  8:07   ` Masahide NAKAMURA

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