netdev - Re: tc: show format ABI changed

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1291857494.2795.1.camel@edumazet-laptop>
Date:	Thu, 09 Dec 2010 02:18:14 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Stephen Hemminger <shemminger@...tta.com>
Cc:	David Miller <davem@...emloft.net>,
	Jarek Poplawski <jarkao2@...il.com>, netdev@...r.kernel.org
Subject: Re: tc: show format ABI changed

Le mercredi 08 décembre 2010 à 14:51 -0800, Stephen Hemminger a écrit :
> Although well intentioned, the following patch should have not
> been applied since it changes the kernel ABI. It broke some scripts
> parsing the output format of tc commands.
> 
> Before HTB would report bogus zero values, now it reports
> nothing and that changes the output format.  Like the empty
> fields in /proc, I argue we can't play fast and loose with
> netlink responses.
> 
> Not a big deal to fix the script in this case, in this case
> so don't revert it.

Thanks.

I really prefer not giving false information to user.

If you change tc, please add an option so that user can ask tc not
invent "zero values"



--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html