netdev - Re: [Patch net] ipv4: fib: check forwarding before checking send

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Message-Id: <20140408.180403.2032592427150449635.davem@davemloft.net>
Date:	Tue, 08 Apr 2014 18:04:03 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	xiyou.wangcong@...il.com
Cc:	netdev@...r.kernel.org, ebiederm@...ssion.com, ja@....bg,
	cwang@...pensource.com
Subject: Re: [Patch net] ipv4: fib: check forwarding before checking
 send_redirects

From: Cong Wang <xiyou.wangcong@...il.com>
Date: Tue, 8 Apr 2014 14:50:09 -0700

> Which part am I missing?

Please stop looking at this conditional, I'm begging you.

Instead, concentrate on why __fib_validate_source() is rejecting
your packets.

The code must function correctly even if __fib_validate_source()
is invoked unconditionally, all the time, for all non-IPSEC
packets.
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