linux-kernel - Re: [PATCH 3/5] net/netfilter/ipvs/ip_vs_ctl.c: drop argument range check just before the check for equality

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Message-ID: <CANZNk83yhnbw0c77UPnisaJr8AO8XtmUon78vEKGe=PBDrfWMw@mail.gmail.com>
Date:	Sun, 20 Jul 2014 01:59:31 +0300
From:	Andrey Utkin <andrey.krieger.utkin@...il.com>
To:	Julian Anastasov <ja@....bg>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org, coreteam@...filter.org,
	netfilter-devel@...r.kernel.org, lvs-devel@...r.kernel.org,
	netdev@...r.kernel.org, dcb314@...mail.com,
	David Miller <davem@...emloft.net>, kadlec@...ckhole.kfki.hu,
	Patrick McHardy <kaber@...sh.net>, pablo@...filter.org,
	Simon Horman <horms@...ge.net.au>, wensong@...ux-vs.org
Subject: Re: [PATCH 3/5] net/netfilter/ipvs/ip_vs_ctl.c: drop argument range
 check just before the check for equality

2014-07-19 0:06 GMT+03:00 Andrey Utkin <andrey.krieger.utkin@...il.com>:
> What about static check at compilation time?
>
> #if (DAEMON_ARG_LEN > MAX_ARG_LEN) \
>  || (SERVICE_ARG_LEN > MAX_ARG_LEN) \
>  || (SVCDEST_ARG_LEN > MAX_ARG_LEN)
> #error MAX_ARG_LEN exceeded in set_arglen table
> #endif

This approach doesn't work, looks because sizeof() values are not
calculated at preprocessing stage.

-- 
Andrey Utkin
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