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#ifndef PRIVATE 58#warning "MAC policy is not KPI, see Technical Q&A QA1574, this header will be removed in next version" 59#endif 60 61/** 62 @brief Mac policy module data 63 64 This structure specifies module data that is passed in to the 65 TrustedBSD MAC policy module by the kernel module loader. The 66 data is made of up key/value pairs where the key is always a 67 string and the value is a string, binary data or array. An array 68 may be a list of values (actually a similar set of key/value pairs, 69 but in this case the keys are always null), and may also consist of 70 a set of dictionaries, which in turn are made up of a list of key/value 71 pairs. 72 73 Module data may be specified in the MAC policy module's 74 Info.plist file as part of the OSModuleData dictionary. 75 76 E.g. 77 78 <key>OSModuleData</key> 79 <dict> 80 <key>foo</key> 81 <string>bar</string> 82 <key>Beers</key> 83 <array> 84 <dict> 85 <key>type</key> 86 <string>lager</string> 87 <key>Name</key> 88 <string>Anchor Steam</string> 89 </dict> 90 <dict> 91 <key>type</key> 92 <string>ale</string> 93 <key>Name</key> 94 <string>Sierra Nevada Pale Ale</string> 95 </dict> 96 </array> 97 </dict> 98 99*/ 100struct mac_module_data_element { 101 unsigned int key_size; 102 unsigned int value_size; 103 unsigned int value_type; 104 char *key; 105 char *value; 106}; 107struct mac_module_data_list { 108 unsigned int count; 109 unsigned int type; 110 struct mac_module_data_element list[1]; 111}; 112struct mac_module_data { 113 void *base_addr; /* Orig base address, for ptr fixup. */ 114 unsigned int size; 115 unsigned int count; 116 struct mac_module_data_element data[1]; /* actually bigger */ 117}; 118 119#define MAC_DATA_TYPE_PRIMITIVE 0 /* Primitive type (int, string, etc.) */ 120#define MAC_DATA_TYPE_ARRAY 1 /* Array type. */ 121#define MAC_DATA_TYPE_DICT 2 /* Dictionary type. */ 122 123#ifdef _SECURITY_MAC_POLICY_H_ 124/* XXX mac_policy_handle_t is defined in mac_policy.h, move prototype there? */ 125int mac_find_policy_data(const mac_policy_handle_t, const char *key, 126 void **valp, size_t *sizep); 127int mac_find_module_data(struct mac_module_data *mmd, const char *key, 128 void **valp, size_t *sizep); 129 130/* 131 * This is a routine to fix up pointers in a mac_module_data_element when the 132 * mac_module_data has been copied to a new area. It depends on the pointers 133 * all being offset from base_addr. 134 */ 135static __inline void 136mmd_fixup_ele(struct mac_module_data *oldbase, 137 struct mac_module_data *newbase, struct mac_module_data_element *ele) 138{ 139 if (ele->key != NULL) { /* Array elements have no keys. */ 140 ele->key -= (uintptr_t)oldbase; 141 ele->key += (uintptr_t)newbase; 142 } 143 ele->value -= (uintptr_t)oldbase; 144 ele->value += (uintptr_t)newbase; 145} 146 147#endif 148 149#endif /* !_SECURITY_MAC_DATA_H_ */ 150