Re: setrlimit(RLIMIT_NETWORK) vs. prctl(???)
[Posted January 6, 2010 by jake]
| From: |
| Ulrich Drepper <drepper-AT-gmail.com> |
| To: |
| Michael Stone <michael-AT-laptop.org> |
| Subject: |
| Re: setrlimit(RLIMIT_NETWORK) vs. prctl(???) |
| Date: |
| Sat, 12 Dec 2009 21:20:13 -0800 |
| Cc: |
| linux-kernel-AT-vger.kernel.org, netdev-AT-vger.kernel.org,
linux-security-module-AT-vger.kernel.org,
Andi Kleen <andi-AT-firstfloor.org>, David Lang <david-AT-lang.hm>,
Oliver Hartkopp <socketcan-AT-hartkopp.net>,
Alan Cox <alan-AT-lxorguk.ukuu.org.uk>,
Herbert Xu <herbert-AT-gondor.apana.org.au>,
Valdis Kletnieks <Valdis.Kletnieks-AT-vt.edu>,
Bryan Donlan <bdonlan-AT-gmail.com>,
Rémi Denis-Courmont <rdenis-AT-simphalempin.com>,
Evgeniy Polyakov <zbr-AT-ioremap.net>,
"C. Scott Ananian" <cscott-AT-cscott.net>,
James Morris <jmorris-AT-namei.org>,
"Eric W. Biederman" <ebiederm-AT-xmission.com>,
Bernie Innocenti <bernie-AT-codewiz.org>,
Mark Seaborn <mrs-AT-mythic-beasts.com> |
| Archive-link: |
| Article, Thread
|
On Sat, Dec 12, 2009 at 21:09, Michael Stone <michael@laptop.org> wrote:
>> That being said, I'm not wedded to the decision. Could you give me some
>> more
>> specific examples of the kinds of changes in low-level userspace code that
>> you're worried about?
It was an accident that I sent the email privately.
As summarized in the paraphrased comment, it's a pain to deal with
rlimit extensions. It's easy enough to do all this using prctl() with
the same semantics and without forcing any other code to be modified.
I let others more competent to judge the usefulness. But using rlimit
as the interface is just plain wrong.
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