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Message-ID: <20140714121135.GA11415@cachalot>
Date: Mon, 14 Jul 2014 16:11:35 +0400
From: Vasily Kulikov <segoon@...nwall.com>
To: owl-dev@...ts.openwall.com
Subject: Re: ping sockets
Solar,
On Thu, Jul 10, 2014 at 15:48 +0400, Solar Designer wrote:
> Vasily,
>
> I've just dropped the following lines from ping_v4_unhash() since they
> had no effect:
>
> struct ve_struct *env = sk->owner_env;
> [...]
> struct hlist_head *hslot;
>
> hslot = ping_hashslot(&ping_table, env, isk->num);
>
> Were these lines included on error, or were they meant to have effect
> (but then you forgot to write more code to make use of them)?
AFAICS, the former. The code was initially supposed to remove the sk
from a 'hslot' list manually in some way, but it was changed to use
sk_del_node_init() instead. The first version I've posted already
contains sk_del_node_init(). So indeed this is a useless code.
Btw, it looks like sk_del_node_init() can be replaced with
sk_del_node() which is a bit faster.
Thanks,
--
Vasily Kulikov
http://www.openwall.com - bringing security into open computing environments
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