freebsd-skq/sys/security/mac/mac_sysv_shm.c
Robert Watson 30d239bc4c Merge first in a series of TrustedBSD MAC Framework KPI changes
from Mac OS X Leopard--rationalize naming for entry points to
the following general forms:

  mac_<object>_<method/action>
  mac_<object>_check_<method/action>

The previous naming scheme was inconsistent and mostly
reversed from the new scheme.  Also, make object types more
consistent and remove spaces from object types that contain
multiple parts ("posix_sem" -> "posixsem") to make mechanical
parsing easier.  Introduce a new "netinet" object type for
certain IPv4/IPv6-related methods.  Also simplify, slightly,
some entry point names.

All MAC policy modules will need to be recompiled, and modules
not updates as part of this commit will need to be modified to
conform to the new KPI.

Sponsored by:	SPARTA (original patches against Mac OS X)
Obtained from:	TrustedBSD Project, Apple Computer
2007-10-24 19:04:04 +00:00

151 lines
3.8 KiB
C

/*-
* Copyright (c) 2003-2004 Networks Associates Technology, Inc.
* Copyright (c) 2006 SPARTA, Inc.
* All rights reserved.
*
* 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.
*
* This software was enhanced by SPARTA ISSO under SPAWAR contract
* N66001-04-C-6019 ("SEFOS").
*
* 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "opt_mac.h"
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/mutex.h>
#include <sys/sbuf.h>
#include <sys/systm.h>
#include <sys/vnode.h>
#include <sys/mount.h>
#include <sys/file.h>
#include <sys/namei.h>
#include <sys/sysctl.h>
#include <sys/shm.h>
#include <security/mac/mac_framework.h>
#include <security/mac/mac_internal.h>
#include <security/mac/mac_policy.h>
static struct label *
mac_sysv_shm_label_alloc(void)
{
struct label *label;
label = mac_labelzone_alloc(M_WAITOK);
MAC_PERFORM(sysvshm_init_label, label);
return (label);
}
void
mac_sysvshm_init(struct shmid_kernel *shmsegptr)
{
shmsegptr->label = mac_sysv_shm_label_alloc();
}
static void
mac_sysv_shm_label_free(struct label *label)
{
MAC_PERFORM(sysvshm_destroy_label, label);
mac_labelzone_free(label);
}
void
mac_sysvshm_destroy(struct shmid_kernel *shmsegptr)
{
mac_sysv_shm_label_free(shmsegptr->label);
shmsegptr->label = NULL;
}
void
mac_sysvshm_create(struct ucred *cred, struct shmid_kernel *shmsegptr)
{
MAC_PERFORM(sysvshm_create, cred, shmsegptr, shmsegptr->label);
}
void
mac_sysvshm_cleanup(struct shmid_kernel *shmsegptr)
{
MAC_PERFORM(sysvshm_cleanup, shmsegptr->label);
}
int
mac_sysvshm_check_shmat(struct ucred *cred, struct shmid_kernel *shmsegptr,
int shmflg)
{
int error;
MAC_CHECK(sysvshm_check_shmat, cred, shmsegptr, shmsegptr->label,
shmflg);
return (error);
}
int
mac_sysvshm_check_shmctl(struct ucred *cred, struct shmid_kernel *shmsegptr,
int cmd)
{
int error;
MAC_CHECK(sysvshm_check_shmctl, cred, shmsegptr, shmsegptr->label,
cmd);
return (error);
}
int
mac_sysvshm_check_shmdt(struct ucred *cred, struct shmid_kernel *shmsegptr)
{
int error;
MAC_CHECK(sysvshm_check_shmdt, cred, shmsegptr, shmsegptr->label);
return (error);
}
int
mac_sysvshm_check_shmget(struct ucred *cred, struct shmid_kernel *shmsegptr,
int shmflg)
{
int error;
MAC_CHECK(sysvshm_check_shmget, cred, shmsegptr, shmsegptr->label,
shmflg);
return (error);
}