linux-kernel - Re: [RFC PATCH 3/3a] ptrace: add _ptrace_may

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Message-ID: <20090507083102.GA20125@redhat.com>
Date:	Thu, 7 May 2009 10:31:02 +0200
From:	Oleg Nesterov <oleg@...hat.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Roland McGrath <roland@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Chris Wright <chrisw@...s-sol.org>,
	linux-kernel@...r.kernel.org, Al Viro <viro@...IV.linux.org.uk>
Subject: Re: [RFC PATCH 3/3a] ptrace: add _ptrace_may_access()

On 05/07, Ingo Molnar wrote:
>
> * Oleg Nesterov <oleg@...hat.com> wrote:
>
> > /* the callers of ptrace_may_access should be fixed */
> >
> > 	int ptrace_may_access(struct task_struct *task, unsigned int mode)
>
> Sigh, NAK, for the reasons explained in the previous mails.

Agreed, but what about security_operations->ptrace_may_access ?

It has the same (bad) name, but returns the error code or 0 on
success.

Oleg.

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