From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753901AbbANTuG (ORCPT ); Wed, 14 Jan 2015 14:50:06 -0500 Received: from mail-qc0-f171.google.com ([209.85.216.171]:58066 "EHLO mail-qc0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753177AbbANTuE (ORCPT ); Wed, 14 Jan 2015 14:50:04 -0500 From: Paul Moore To: Mark Salyzyn Cc: linux-kernel@vger.kernel.org, Stephen Smalley , Eric Paris , James Morris , "Serge E. Hallyn" , selinux@tycho.nsa.gov, linux-security-module@vger.kernel.org Subject: Re: [PATCH 5/5] pstore: selinux: add security in-core xattr support for pstore and debugfs Date: Wed, 14 Jan 2015 14:50:01 -0500 Message-ID: <4175437.ksvLooJb8o@sifl> User-Agent: KMail/4.14.3 (Linux/3.16.7-gentoo; KDE/4.14.3; x86_64; ; ) In-Reply-To: <1421188410-2006-1-git-send-email-salyzyn@android.com> References: <1421188410-2006-1-git-send-email-salyzyn@android.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tuesday, January 13, 2015 02:33:18 PM Mark Salyzyn wrote: > - add "pstore" and "debugfs" to list of in-core exceptions > - change fstype checks to boolean equation > - change from strncmp to strcmp for checking > > Signed-off-by: Mark Salyzyn > --- > security/selinux/hooks.c | 25 ++++++++----------------- > 1 file changed, 8 insertions(+), 17 deletions(-) Not a huge fan of the coding style, but merged into the next branch regardless. Thanks. > diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c > index 6da7532..789a7e1 100644 > --- a/security/selinux/hooks.c > +++ b/security/selinux/hooks.c > @@ -401,23 +401,14 @@ static int selinux_is_sblabel_mnt(struct super_block > *sb) { > struct superblock_security_struct *sbsec = sb->s_security; > > - if (sbsec->behavior == SECURITY_FS_USE_XATTR || > - sbsec->behavior == SECURITY_FS_USE_TRANS || > - sbsec->behavior == SECURITY_FS_USE_TASK) > - return 1; > - > - /* Special handling for sysfs. Is genfs but also has setxattr handler*/ > - if (strncmp(sb->s_type->name, "sysfs", sizeof("sysfs")) == 0) > - return 1; > - > - /* > - * Special handling for rootfs. Is genfs but supports > - * setting SELinux context on in-core inodes. > - */ > - if (strncmp(sb->s_type->name, "rootfs", sizeof("rootfs")) == 0) > - return 1; > - > - return 0; > + return sbsec->behavior == SECURITY_FS_USE_XATTR || > + sbsec->behavior == SECURITY_FS_USE_TRANS || > + sbsec->behavior == SECURITY_FS_USE_TASK || > + /* Special handling. Genfs but also in-core setxattr handler */ > + !strcmp(sb->s_type->name, "sysfs") || > + !strcmp(sb->s_type->name, "pstore") || > + !strcmp(sb->s_type->name, "debugfs") || > + !strcmp(sb->s_type->name, "rootfs"); > } > > static int sb_finish_set_opts(struct super_block *sb) -- paul moore www.paul-moore.com