From: James Morris <jmorris@namei.org>
To: "David P. Quigley" <dpquigl@tycho.nsa.gov>
Cc: linux-security-module@vger.kernel.org,
linux-fsdevel@vger.kernel.org, sds@tycho.nsa.gov
Subject: Re: [PATCH 2/2] VFS: Reorder vfs_getxattr to avoid unnecessary calls to the LSM
Date: Wed, 24 Oct 2007 09:42:02 +1000 (EST) [thread overview]
Message-ID: <Xine.LNX.4.64.0710240941280.10783@us.intercode.com.au> (raw)
In-Reply-To: <1193080313.30930.8.camel@moss-terrapins.epoch.ncsc.mil>
On Mon, 22 Oct 2007, David P. Quigley wrote:
> Originally vfs_getxattr would pull the security xattr variable using
> the inode getxattr handle and then proceed to clobber it with a subsequent call
> to the LSM. This patch reorders the two operations such that when the xattr
> requested is in the security namespace it first attempts to grab the value from
> the LSM directly. If it fails to obtain the value because there is no module
> present or the module does not support the operation it will fall back to using
> the inode getxattr operation. In the event that both are inaccessible it
> returns EOPNOTSUPP.
>
> Signed-off-by: David P. Quigley <dpquigl@tycho.nsa.gov>
Acked-by: James Morris <jmorris@namei.org>
--
James Morris
<jmorris@namei.org>
next prev parent reply other threads:[~2007-10-23 23:42 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-22 19:06 [RFC 0/2] getsecurity/vfs_getxattr cleanup David P. Quigley
2007-10-22 19:10 ` [PATCH 1/2] VFS/Security: Rework inode_getsecurity and callers to return resulting buffer David P. Quigley
2007-10-23 23:38 ` James Morris
2007-10-26 0:02 ` Serge E. Hallyn
2007-10-26 14:50 ` David P. Quigley
2007-10-26 15:02 ` Serge E. Hallyn
2007-10-26 15:04 ` Stephen Smalley
2007-10-26 15:35 ` Serge E. Hallyn
2007-10-26 15:13 ` David P. Quigley
2007-10-26 15:20 ` David P. Quigley
2007-10-26 15:54 ` David P. Quigley
2007-10-26 16:36 ` Serge E. Hallyn
2007-10-26 17:36 ` David P. Quigley
2007-10-26 15:07 ` Serge E. Hallyn
2007-10-26 15:16 ` David P. Quigley
2007-10-26 22:14 ` James Morris
2007-10-31 20:55 ` David P. Quigley
2007-11-01 3:56 ` James Morris
2007-10-22 19:11 ` [PATCH 2/2] VFS: Reorder vfs_getxattr to avoid unnecessary calls to the LSM David P. Quigley
2007-10-23 23:42 ` James Morris [this message]
2007-10-25 23:43 ` Serge E. Hallyn
2007-10-23 20:17 ` [RFC 0/2] getsecurity/vfs_getxattr cleanup David P. Quigley
-- strict thread matches above, loose matches on Subject: below --
2007-11-01 14:35 [PATCH 0/2] getsecurity/vfs_getxattr cleanup V2 David P. Quigley
2007-11-01 14:41 ` [PATCH 2/2] VFS: Reorder vfs_getxattr to avoid unnecessary calls to the LSM David P. Quigley
2007-11-01 20:58 ` James Morris
2007-11-01 22:47 ` Serge E. Hallyn
2007-08-17 17:01 [RFC]Cleanup inode_getsecurity and callers for use with labeled NFS David P. Quigley
2007-08-17 17:01 ` [PATCH 2/2] VFS: Reorder vfs_getxattr to avoid unnecessary calls to the LSM David P. Quigley
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