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
174 lines
4.1 KiB
C
174 lines
4.1 KiB
C
/*-
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* Copyright (c) 2007-2009 Robert N. M. Watson
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* All rights reserved.
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*
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* This software was developed by Robert Watson for the TrustedBSD Project.
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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_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/mount.h>
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#include <sys/file.h>
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#include <sys/namei.h>
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#include <sys/protosw.h>
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#include <sys/socket.h>
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#include <sys/socketvar.h>
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#include <sys/sysctl.h>
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#include <net/if.h>
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#include <net/if_var.h>
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#include <netinet/in.h>
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#include <netinet/ip6.h>
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#include <netinet6/ip6_var.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_ip6q_label_alloc(int flag)
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{
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struct label *label;
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int error;
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label = mac_labelzone_alloc(flag);
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if (label == NULL)
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return (NULL);
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if (flag & M_WAITOK)
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MAC_POLICY_CHECK(ip6q_init_label, label, flag);
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else
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MAC_POLICY_CHECK_NOSLEEP(ip6q_init_label, label, flag);
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if (error) {
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MAC_POLICY_PERFORM_NOSLEEP(ip6q_destroy_label, label);
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mac_labelzone_free(label);
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return (NULL);
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}
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return (label);
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}
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int
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mac_ip6q_init(struct ip6q *q6, int flag)
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{
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if (mac_labeled & MPC_OBJECT_IP6Q) {
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q6->ip6q_label = mac_ip6q_label_alloc(flag);
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if (q6->ip6q_label == NULL)
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return (ENOMEM);
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} else
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q6->ip6q_label = NULL;
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return (0);
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}
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static void
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mac_ip6q_label_free(struct label *label)
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{
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MAC_POLICY_PERFORM_NOSLEEP(ip6q_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_ip6q_destroy(struct ip6q *q6)
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{
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if (q6->ip6q_label != NULL) {
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mac_ip6q_label_free(q6->ip6q_label);
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q6->ip6q_label = NULL;
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}
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}
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void
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mac_ip6q_reassemble(struct ip6q *q6, struct mbuf *m)
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{
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struct label *label;
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label = mac_mbuf_to_label(m);
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MAC_POLICY_PERFORM_NOSLEEP(ip6q_reassemble, q6, q6->ip6q_label, m,
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label);
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}
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void
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mac_ip6q_create(struct mbuf *m, struct ip6q *q6)
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{
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struct label *label;
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label = mac_mbuf_to_label(m);
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MAC_POLICY_PERFORM_NOSLEEP(ip6q_create, m, label, q6,
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q6->ip6q_label);
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}
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int
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mac_ip6q_match(struct mbuf *m, struct ip6q *q6)
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{
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struct label *label;
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int result;
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label = mac_mbuf_to_label(m);
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result = 1;
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MAC_POLICY_BOOLEAN_NOSLEEP(ip6q_match, &&, m, label, q6,
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q6->ip6q_label);
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return (result);
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}
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void
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mac_ip6q_update(struct mbuf *m, struct ip6q *q6)
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{
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struct label *label;
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label = mac_mbuf_to_label(m);
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MAC_POLICY_PERFORM_NOSLEEP(ip6q_update, m, label, q6,
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q6->ip6q_label);
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}
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void
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mac_netinet6_nd6_send(struct ifnet *ifp, struct mbuf *m)
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{
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struct label *mlabel;
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mlabel = mac_mbuf_to_label(m);
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MAC_POLICY_PERFORM_NOSLEEP(netinet6_nd6_send, ifp, ifp->if_label, m,
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mlabel);
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}
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