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From: Steve G <linux_4ever@yahoo.com>
To: Stephen Smalley <sds@tycho.nsa.gov>
Cc: Daniel J Walsh <dwalsh@redhat.com>, SE Linux <selinux@tycho.nsa.gov>
Subject: Re: libselinux patch
Date: Wed, 21 Feb 2007 05:12:11 -0800 (PST)	[thread overview]
Message-ID: <20070221131211.72950.qmail@web51506.mail.yahoo.com> (raw)
In-Reply-To: <1171983969.14363.35.camel@moss-spartans.epoch.ncsc.mil>


>I also have to wonder whether we'd be better off just switching from
>direct open+read of /proc/filesystems to just using fopen+getline,
>thereby automatically picking up glibc's internal support of dynamic
>buffer allocation and EINTR handling.  Just read the file line-by-line
>and bail out if we find selinuxfs or hit the end of file.

There might be a more robust, higher performance way of doing this. Is there ever
a situation where the selinux filesystem is _not_ "/selinux" ? If there never is
a case where this happens, then we could change over to statfs and check for
SELINUX_MAGIC in the f_type field of the structure. Its only 1 syscall instead of
several.

-Steve


 
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  reply	other threads:[~2007-02-21 13:11 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-20 14:31 libselinux patch Daniel J Walsh
2007-02-20 15:05 ` Steve G
2007-02-20 15:06   ` Stephen Smalley
2007-02-21 13:12     ` Steve G [this message]
2007-02-21 13:20       ` Stephen Smalley
2007-02-21 13:37         ` Steve G
2007-02-21 13:42           ` Stephen Smalley
2007-02-21 14:03             ` Steve G
2007-02-21 18:26               ` Steve G
2007-02-22 12:34                 ` Stephen Smalley
2007-02-22 13:46                   ` Steve G
2007-02-22 14:10                     ` Stephen Smalley
2007-02-22 15:48                       ` Steve G
2007-02-23 20:45                         ` Stephen Smalley
2007-02-26 16:40                           ` Steve G
2007-02-27 15:15                             ` Stephen Smalley
2007-02-27 15:58                               ` Christopher J. PeBenito
2007-02-22 14:45                     ` James Antill
2007-02-21 14:47           ` Stefanos Harhalakis
2007-02-21 17:21 ` Stephen Smalley
2007-04-05 17:25 Daniel J Walsh
2007-04-05 17:44 ` Stephen Smalley
2007-04-05 21:00   ` Daniel J Walsh
2007-04-09 14:17     ` Stephen Smalley
2007-04-09 15:12       ` Daniel J Walsh

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