linux-kernel - Re: [PATCH 4/6] BC: user interface (syscalls)

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: Windows password security audit tool. GUI, reports in PDF.

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

Message-Id: <20060823213512.88f4344d.akpm@osdl.org>
Date:	Wed, 23 Aug 2006 21:35:12 -0700
From:	Andrew Morton <akpm@...l.org>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Kirill Korotaev <dev@...ru>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Christoph Hellwig <hch@...radead.org>,
	Pavel Emelianov <xemul@...nvz.org>,
	Andrey Savochkin <saw@...ru>, devel@...nvz.org,
	Rik van Riel <riel@...hat.com>, Andi Kleen <ak@...e.de>,
	Greg KH <greg@...ah.com>, Oleg Nesterov <oleg@...sign.ru>,
	Matt Helsley <matthltc@...ibm.com>,
	Rohit Seth <rohitseth@...gle.com>,
	Chandra Seetharaman <sekharan@...ibm.com>
Subject: Re: [PATCH 4/6] BC: user interface (syscalls)

On Wed, 23 Aug 2006 18:29:42 +0100
Alan Cox <alan@...rguk.ukuu.org.uk> wrote:

> Ar Mer, 2006-08-23 am 09:50 -0700, ysgrifennodd Andrew Morton:
> > On Wed, 23 Aug 2006 17:43:16 +0400
> > Kirill Korotaev <dev@...ru> wrote:
> > 
> > > +asmlinkage long sys_set_bclimit(uid_t id, unsigned long resource,
> > > +		unsigned long *limits)
> > 
> > I'm still a bit mystified about the use of uid_t here.  It's not a uid, is
> > it?
> 
> Its a uid_t because of setluid() and twenty odd years of existing unix
> practice. 
> 

I don't understand.  This number is an identifier for an accounting
container, which was somehow dreamed up by userspace.

AFAICT it is wholly unrelated to user ID's.

(How does userspace avoid collisions, btw?)
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/