1/* 2 * Copyright (c) 2007 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28/*- 29 * Copyright (c) 2006 SPARTA, Inc. 30 * All rights reserved. 31 * 32 * Redistribution and use in source and binary forms, with or without 33 * modification, are permitted provided that the following conditions 34 * are met: 35 * 1. Redistributions of source code must retain the above copyright 36 * notice, this list of conditions and the following disclaimer. 37 * 2. Redistributions in binary form must reproduce the above copyright 38 * notice, this list of conditions and the following disclaimer in the 39 * documentation and/or other materials provided with the distribution. 40 * 41 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 */ 53 54#ifndef _SECURITY_MAC_DATA_H_ 55#define _SECURITY_MAC_DATA_H_ 56 57/** 58 @brief Mac policy module data 59 60 This structure specifies module data that is passed in to the 61 TrustedBSD MAC policy module by the kernel module loader. The 62 data is made of up key/value pairs where the key is always a 63 string and the value is a string, binary data or array. An array 64 may be a list of values (actually a similar set of key/value pairs, 65 but in this case the keys are always null), and may also consist of 66 a set of dictionaries, which in turn are made up of a list of key/value 67 pairs. 68 69 Module data may be specified in the MAC policy module's 70 Info.plist file as part of the OSModuleData dictionary. 71 72 E.g. 73 74 <key>OSModuleData</key> 75 <dict> 76 <key>foo</key> 77 <string>bar</string> 78 <key>Beers</key> 79 <array> 80 <dict> 81 <key>type</key> 82 <string>lager</string> 83 <key>Name</key> 84 <string>Anchor Steam</string> 85 </dict> 86 <dict> 87 <key>type</key> 88 <string>ale</string> 89 <key>Name</key> 90 <string>Sierra Nevada Pale Ale</string> 91 </dict> 92 </array> 93 </dict> 94 95*/ 96struct mac_module_data_element { 97 unsigned int key_size; 98 unsigned int value_size; 99 unsigned int value_type; 100 char *key; 101 char *value; 102}; 103struct mac_module_data_list { 104 unsigned int count; 105 unsigned int type; 106 struct mac_module_data_element list[1]; 107}; 108struct mac_module_data { 109 void *base_addr; /* Orig base address, for ptr fixup. */ 110 unsigned int size; 111 unsigned int count; 112 struct mac_module_data_element data[1]; /* actually bigger */ 113}; 114 115#define MAC_DATA_TYPE_PRIMITIVE 0 /* Primitive type (int, string, etc.) */ 116#define MAC_DATA_TYPE_ARRAY 1 /* Array type. */ 117#define MAC_DATA_TYPE_DICT 2 /* Dictionary type. */ 118 119#ifdef _SECURITY_MAC_POLICY_H_ 120/* XXX mac_policy_handle_t is defined in mac_policy.h, move prototype there? */ 121int mac_find_policy_data(const mac_policy_handle_t, const char *key, 122 void **valp, size_t *sizep); 123int mac_find_module_data(struct mac_module_data *mmd, const char *key, 124 void **valp, size_t *sizep); 125 126/* 127 * This is a routine to fix up pointers in a mac_module_data_element when the 128 * mac_module_data has been copied to a new area. It depends on the pointers 129 * all being offset from base_addr. 130 */ 131static __inline void 132mmd_fixup_ele(struct mac_module_data *oldbase, 133 struct mac_module_data *newbase, struct mac_module_data_element *ele) 134{ 135 if (ele->key != NULL) { /* Array elements have no keys. */ 136 ele->key -= (uintptr_t)oldbase; 137 ele->key += (uintptr_t)newbase; 138 } 139 ele->value -= (uintptr_t)oldbase; 140 ele->value += (uintptr_t)newbase; 141} 142 143#endif 144 145#endif /* !_SECURITY_MAC_DATA_H_ */ 146