7176eb1b5e
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
/*-
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* Copyright (c) 2003-2004 Networks Associates Technology, Inc.
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* Copyright (c) 2006 SPARTA, Inc.
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* Copyright (c) 2009 Robert N. M. Watson
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* All rights reserved.
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*
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* This software was developed for the FreeBSD Project in part by Network
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* Associates Laboratories, the Security Research Division of Network
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* Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"),
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* as part of the DARPA CHATS research program.
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*
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* This software was enhanced by SPARTA ISSO under SPAWAR contract
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* N66001-04-C-6019 ("SEFOS").
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*
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* This software was developed at the University of Cambridge Computer
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* Laboratory with support from a grant from Google, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_kdtrace.h"
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#include "opt_mac.h"
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/lock.h>
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#include <sys/malloc.h>
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#include <sys/mutex.h>
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#include <sys/sbuf.h>
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#include <sys/systm.h>
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#include <sys/vnode.h>
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#include <sys/mount.h>
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#include <sys/file.h>
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#include <sys/namei.h>
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#include <sys/sdt.h>
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#include <sys/sysctl.h>
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#include <sys/sem.h>
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#include <security/mac/mac_framework.h>
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#include <security/mac/mac_internal.h>
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#include <security/mac/mac_policy.h>
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static struct label *
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mac_sysv_sem_label_alloc(void)
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{
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struct label *label;
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label = mac_labelzone_alloc(M_WAITOK);
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MAC_POLICY_PERFORM(sysvsem_init_label, label);
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return (label);
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}
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void
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mac_sysvsem_init(struct semid_kernel *semakptr)
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{
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if (mac_labeled & MPC_OBJECT_SYSVSEM)
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semakptr->label = mac_sysv_sem_label_alloc();
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else
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semakptr->label = NULL;
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}
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static void
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mac_sysv_sem_label_free(struct label *label)
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{
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MAC_POLICY_PERFORM_NOSLEEP(sysvsem_destroy_label, label);
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mac_labelzone_free(label);
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}
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void
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mac_sysvsem_destroy(struct semid_kernel *semakptr)
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{
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if (semakptr->label != NULL) {
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mac_sysv_sem_label_free(semakptr->label);
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semakptr->label = NULL;
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}
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}
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void
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mac_sysvsem_create(struct ucred *cred, struct semid_kernel *semakptr)
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{
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MAC_POLICY_PERFORM_NOSLEEP(sysvsem_create, cred, semakptr,
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semakptr->label);
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}
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void
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mac_sysvsem_cleanup(struct semid_kernel *semakptr)
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{
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MAC_POLICY_PERFORM_NOSLEEP(sysvsem_cleanup, semakptr->label);
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}
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MAC_CHECK_PROBE_DEFINE3(sysvsem_check_semctl, "struct ucred *",
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"struct semid_kernel *", "int");
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int
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mac_sysvsem_check_semctl(struct ucred *cred, struct semid_kernel *semakptr,
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int cmd)
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{
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int error;
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MAC_POLICY_CHECK_NOSLEEP(sysvsem_check_semctl, cred, semakptr,
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semakptr->label, cmd);
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MAC_CHECK_PROBE3(sysvsem_check_semctl, error, cred, semakptr, cmd);
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return (error);
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}
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MAC_CHECK_PROBE_DEFINE2(sysvsem_check_semget, "struct ucred *",
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"struct semid_kernel *");
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int
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mac_sysvsem_check_semget(struct ucred *cred, struct semid_kernel *semakptr)
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{
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int error;
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MAC_POLICY_CHECK_NOSLEEP(sysvsem_check_semget, cred, semakptr,
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semakptr->label);
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return (error);
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}
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MAC_CHECK_PROBE_DEFINE3(sysvsem_check_semop, "struct ucred *",
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"struct semid_kernel *", "size_t");
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int
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mac_sysvsem_check_semop(struct ucred *cred, struct semid_kernel *semakptr,
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size_t accesstype)
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{
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int error;
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MAC_POLICY_CHECK_NOSLEEP(sysvsem_check_semop, cred, semakptr,
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semakptr->label, accesstype);
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MAC_CHECK_PROBE3(sysvsem_check_semop, error, cred, semakptr,
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accesstype);
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return (error);
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}
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