fa76567150
MAC_BOOLEAN -> MAC_POLICY_BOOLEAN MAC_BOOLEAN_NOSLEEP -> MAC_POLICY_BOOLEANN_NOSLEEP MAC_CHECK -> MAC_POLICY_CHECK MAC_CHECK_NOSLEEP -> MAC_POLICY_CHECK_NOSLEEP MAC_EXTERNALIZE -> MAC_POLICY_EXTERNALIZE MAC_GRANT -> MAC_POLICY_GRANT MAC_GRANT_NOSLEEP -> MAC_POLICY_GRANT_NOSLEEP MAC_INTERNALIZE -> MAC_POLICY_INTERNALIZE MAC_PERFORM -> MAC_POLICY_PERFORM_CHECK MAC_PERFORM_NOSLEEP -> MAC_POLICY_PERFORM_NOSLEEP This frees up those macro names for use in wrapping calls into the MAC Framework from the remainder of the kernel. Obtained from: TrustedBSD Project
164 lines
4.5 KiB
C
164 lines
4.5 KiB
C
/*-
|
|
* Copyright (c) 2003-2004 Networks Associates Technology, Inc.
|
|
* Copyright (c) 2006 SPARTA, Inc.
|
|
* Copyright (c) 2009 Robert N. M. Watson
|
|
* 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").
|
|
*
|
|
* This software was developed at the University of Cambridge Computer
|
|
* Laboratory with support from a grant from Google, Inc.
|
|
*
|
|
* 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_kdtrace.h"
|
|
#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/sdt.h>
|
|
#include <sys/sysctl.h>
|
|
#include <sys/sem.h>
|
|
|
|
#include <security/mac/mac_framework.h>
|
|
#include <security/mac/mac_internal.h>
|
|
#include <security/mac/mac_policy.h>
|
|
|
|
static struct label *
|
|
mac_sysv_sem_label_alloc(void)
|
|
{
|
|
struct label *label;
|
|
|
|
label = mac_labelzone_alloc(M_WAITOK);
|
|
MAC_POLICY_PERFORM(sysvsem_init_label, label);
|
|
return (label);
|
|
}
|
|
|
|
void
|
|
mac_sysvsem_init(struct semid_kernel *semakptr)
|
|
{
|
|
|
|
if (mac_labeled & MPC_OBJECT_SYSVSEM)
|
|
semakptr->label = mac_sysv_sem_label_alloc();
|
|
else
|
|
semakptr->label = NULL;
|
|
}
|
|
|
|
static void
|
|
mac_sysv_sem_label_free(struct label *label)
|
|
{
|
|
|
|
MAC_POLICY_PERFORM_NOSLEEP(sysvsem_destroy_label, label);
|
|
mac_labelzone_free(label);
|
|
}
|
|
|
|
void
|
|
mac_sysvsem_destroy(struct semid_kernel *semakptr)
|
|
{
|
|
|
|
if (semakptr->label != NULL) {
|
|
mac_sysv_sem_label_free(semakptr->label);
|
|
semakptr->label = NULL;
|
|
}
|
|
}
|
|
|
|
void
|
|
mac_sysvsem_create(struct ucred *cred, struct semid_kernel *semakptr)
|
|
{
|
|
|
|
MAC_POLICY_PERFORM_NOSLEEP(sysvsem_create, cred, semakptr,
|
|
semakptr->label);
|
|
}
|
|
|
|
void
|
|
mac_sysvsem_cleanup(struct semid_kernel *semakptr)
|
|
{
|
|
|
|
MAC_POLICY_PERFORM_NOSLEEP(sysvsem_cleanup, semakptr->label);
|
|
}
|
|
|
|
MAC_CHECK_PROBE_DEFINE3(sysvsem_check_semctl, "struct ucred *",
|
|
"struct semid_kernel *", "int");
|
|
|
|
int
|
|
mac_sysvsem_check_semctl(struct ucred *cred, struct semid_kernel *semakptr,
|
|
int cmd)
|
|
{
|
|
int error;
|
|
|
|
MAC_POLICY_CHECK_NOSLEEP(sysvsem_check_semctl, cred, semakptr,
|
|
semakptr->label, cmd);
|
|
MAC_CHECK_PROBE3(sysvsem_check_semctl, error, cred, semakptr, cmd);
|
|
|
|
return (error);
|
|
}
|
|
|
|
MAC_CHECK_PROBE_DEFINE2(sysvsem_check_semget, "struct ucred *",
|
|
"struct semid_kernel *");
|
|
|
|
int
|
|
mac_sysvsem_check_semget(struct ucred *cred, struct semid_kernel *semakptr)
|
|
{
|
|
int error;
|
|
|
|
MAC_POLICY_CHECK_NOSLEEP(sysvsem_check_semget, cred, semakptr,
|
|
semakptr->label);
|
|
|
|
return (error);
|
|
}
|
|
|
|
MAC_CHECK_PROBE_DEFINE3(sysvsem_check_semop, "struct ucred *",
|
|
"struct semid_kernel *", "size_t");
|
|
|
|
int
|
|
mac_sysvsem_check_semop(struct ucred *cred, struct semid_kernel *semakptr,
|
|
size_t accesstype)
|
|
{
|
|
int error;
|
|
|
|
MAC_POLICY_CHECK_NOSLEEP(sysvsem_check_semop, cred, semakptr,
|
|
semakptr->label, accesstype);
|
|
MAC_CHECK_PROBE3(sysvsem_check_semop, error, cred, semakptr,
|
|
accesstype);
|
|
|
|
return (error);
|
|
}
|