1/*- 2 * Copyright (c) 2003-2006 SPARTA, Inc. 3 * All rights reserved. 4 * 5 * This software was developed for the FreeBSD Project in part by Network 6 * Associates Laboratories, the Security Research Division of Network 7 * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), 8 * as part of the DARPA CHATS research program. 9 * 10 * This software was enhanced by SPARTA ISSO under SPAWAR contract 11 * N66001-04-C-6019 ("SEFOS"). 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35#include <sys/cdefs.h>
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36__FBSDID("$FreeBSD: head/sys/security/mac/mac_posix_sem.c 179963 2008-06-23 21:37:53Z jhb $");
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36__FBSDID("$FreeBSD: head/sys/security/mac/mac_posix_sem.c 180059 2008-06-27 05:39:04Z jhb $"); |
37 38#include "opt_mac.h" 39#include "opt_posix.h" 40 41#include <sys/param.h> 42#include <sys/kernel.h> 43#include <sys/ksem.h> 44#include <sys/malloc.h> 45#include <sys/module.h> 46#include <sys/systm.h> 47#include <sys/sysctl.h> 48 49#include <security/mac/mac_framework.h> 50#include <security/mac/mac_internal.h> 51#include <security/mac/mac_policy.h> 52 53static struct label * 54mac_posixsem_label_alloc(void) 55{ 56 struct label *label; 57 58 label = mac_labelzone_alloc(M_WAITOK); 59 MAC_PERFORM(posixsem_init_label, label); 60 return (label); 61} 62 63void 64mac_posixsem_init(struct ksem *ks) 65{ 66 67 ks->ks_label = mac_posixsem_label_alloc(); 68} 69 70static void 71mac_posixsem_label_free(struct label *label) 72{ 73 74 MAC_PERFORM(posixsem_destroy_label, label); 75 mac_labelzone_free(label); 76} 77 78void 79mac_posixsem_destroy(struct ksem *ks) 80{ 81 82 mac_posixsem_label_free(ks->ks_label); 83 ks->ks_label = NULL; 84} 85 86void 87mac_posixsem_create(struct ucred *cred, struct ksem *ks) 88{ 89 90 MAC_PERFORM(posixsem_create, cred, ks, ks->ks_label); 91} 92 93int 94mac_posixsem_check_open(struct ucred *cred, struct ksem *ks) 95{ 96 int error; 97 98 MAC_CHECK(posixsem_check_open, cred, ks, ks->ks_label); 99 100 return (error); 101} 102 103int
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104mac_posixsem_check_getvalue(struct ucred *cred, struct ksem *ks)
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104mac_posixsem_check_getvalue(struct ucred *active_cred, struct ucred *file_cred, 105 struct ksem *ks) |
106{ 107 int error; 108
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108 MAC_CHECK(posixsem_check_getvalue, cred, ks, ks->ks_label);
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109 MAC_CHECK(posixsem_check_getvalue, active_cred, file_cred, ks, 110 ks->ks_label); |
111 112 return (error); 113} 114 115int
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114mac_posixsem_check_post(struct ucred *cred, struct ksem *ks)
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116mac_posixsem_check_post(struct ucred *active_cred, struct ucred *file_cred, 117 struct ksem *ks) |
118{ 119 int error; 120
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118 MAC_CHECK(posixsem_check_post, cred, ks, ks->ks_label);
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121 MAC_CHECK(posixsem_check_post, active_cred, file_cred, ks, 122 ks->ks_label); |
123 124 return (error); 125} 126 127int
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128mac_posixsem_check_stat(struct ucred *active_cred, struct ucred *file_cred, 129 struct ksem *ks) 130{ 131 int error; 132 133 MAC_CHECK(posixsem_check_stat, active_cred, file_cred, ks, 134 ks->ks_label); 135 136 return (error); 137} 138 139int |
140mac_posixsem_check_unlink(struct ucred *cred, struct ksem *ks) 141{ 142 int error; 143 144 MAC_CHECK(posixsem_check_unlink, cred, ks, ks->ks_label); 145 146 return (error); 147} 148 149int
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134mac_posixsem_check_wait(struct ucred *cred, struct ksem *ks)
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150mac_posixsem_check_wait(struct ucred *active_cred, struct ucred *file_cred, 151 struct ksem *ks) |
152{ 153 int error; 154
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138 MAC_CHECK(posixsem_check_wait, cred, ks, ks->ks_label);
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155 MAC_CHECK(posixsem_check_wait, active_cred, file_cred, ks, 156 ks->ks_label); |
157 158 return (error); 159}
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