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freebsd/sys/security/mac/mac_audit.c
Robert Watson 18717f69b1 Allow MAC policy modules to control access to audit configuration system
calls.  Add MAC Framework entry points and MAC policy entry points for
audit(), auditctl(), auditon(), setaudit(), aud setauid().

MAC Framework entry points are only added for audit system calls where
additional argument context may be useful for policy decision-making; other
audit system calls without arguments may be controlled via the priv(9)
entry points.

Update various policy modules to implement audit-related checks, and in
some cases, other missing system-related checks.

Obtained from:	TrustedBSD Project
Sponsored by:	SPARTA, Inc.
2007-04-21 22:08:48 +00:00

102 lines
2.8 KiB
C

/*-
* Copyright (c) 1999-2002 Robert N. M. Watson
* Copyright (c) 2001 Ilmar S. Habibulin
* Copyright (c) 2001-2004 Networks Associates Technology, Inc.
*
* This software was developed by Robert Watson and Ilmar Habibulin for the
* TrustedBSD Project.
*
* This software was developed for the FreeBSD Project in part by Network
* Associates Laboratories, the Security Research Division of Network
* Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"),
* as part of the DARPA CHATS research program.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/module.h>
#include <sys/vnode.h>
#include <security/audit/audit.h>
#include <security/mac/mac_framework.h>
#include <security/mac/mac_internal.h>
#include <security/mac/mac_policy.h>
int
mac_check_proc_setaudit(struct ucred *cred, struct auditinfo *ai)
{
int error;
MAC_CHECK(check_proc_setaudit, cred, ai);
return (error);
}
int
mac_check_proc_setauid(struct ucred *cred, uid_t auid)
{
int error;
MAC_CHECK(check_proc_setauid, cred, auid);
return (error);
}
int
mac_check_system_audit(struct ucred *cred, void *record, int length)
{
int error;
MAC_CHECK(check_system_audit, cred, record, length);
return (error);
}
int
mac_check_system_auditctl(struct ucred *cred, struct vnode *vp)
{
int error;
struct label *vl;
ASSERT_VOP_LOCKED(vp, "mac_check_system_auditctl");
vl = (vp != NULL) ? vp->v_label : NULL;
MAC_CHECK(check_system_auditctl, cred, vp, vl);
return (error);
}
int
mac_check_system_auditon(struct ucred *cred, int cmd)
{
int error;
MAC_CHECK(check_system_auditon, cred, cmd);
return (error);
}