150 lines
5.6 KiB
C
150 lines
5.6 KiB
C
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/*
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* Copyright (c) 2007 Apple Inc. All rights reserved.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. The rights granted to you under the License
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* may not be used to create, or enable the creation or redistribution of,
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* unlawful or unlicensed copies of an Apple operating system, or to
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* circumvent, violate, or enable the circumvention or violation of, any
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* terms of an Apple operating system software license agreement.
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*
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* Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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*/
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/*-
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* Copyright (c) 2006 SPARTA, Inc.
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* All rights reserved.
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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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#ifndef _SECURITY_MAC_DATA_H_
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#define _SECURITY_MAC_DATA_H_
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#ifndef PRIVATE
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#warning "MAC policy is not KPI, see Technical Q&A QA1574, this header will be removed in next version"
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#endif
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/**
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* @brief Mac policy module data
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*
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* This structure specifies module data that is passed in to the
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* TrustedBSD MAC policy module by the kernel module loader. The
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* data is made of up key/value pairs where the key is always a
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* string and the value is a string, binary data or array. An array
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* may be a list of values (actually a similar set of key/value pairs,
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* but in this case the keys are always null), and may also consist of
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* a set of dictionaries, which in turn are made up of a list of key/value
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* pairs.
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*
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* Module data may be specified in the MAC policy module's
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* Info.plist file as part of the OSModuleData dictionary.
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*
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* E.g.
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*
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* <key>OSModuleData</key>
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* <dict>
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* <key>foo</key>
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* <string>bar</string>
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* <key>Beers</key>
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* <array>
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* <dict>
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* <key>type</key>
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* <string>lager</string>
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* <key>Name</key>
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* <string>Anchor Steam</string>
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* </dict>
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* <dict>
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* <key>type</key>
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* <string>ale</string>
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* <key>Name</key>
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* <string>Sierra Nevada Pale Ale</string>
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* </dict>
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* </array>
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* </dict>
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*
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*/
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struct mac_module_data_element {
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unsigned int key_size;
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unsigned int value_size;
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unsigned int value_type;
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char *key;
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char *value;
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};
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struct mac_module_data_list {
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unsigned int count;
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unsigned int type;
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struct mac_module_data_element list[1];
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};
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struct mac_module_data {
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void *base_addr; /* Orig base address, for ptr fixup. */
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unsigned int size;
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unsigned int count;
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struct mac_module_data_element data[1]; /* actually bigger */
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};
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#define MAC_DATA_TYPE_PRIMITIVE 0 /* Primitive type (int, string, etc.) */
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#define MAC_DATA_TYPE_ARRAY 1 /* Array type. */
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#define MAC_DATA_TYPE_DICT 2 /* Dictionary type. */
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#ifdef _SECURITY_MAC_POLICY_H_
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/* XXX mac_policy_handle_t is defined in mac_policy.h, move prototype there? */
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int mac_find_policy_data(const mac_policy_handle_t, const char *key,
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void **valp, size_t *sizep);
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int mac_find_module_data(struct mac_module_data *mmd, const char *key,
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void **valp, size_t *sizep);
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/*
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* This is a routine to fix up pointers in a mac_module_data_element when the
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* mac_module_data has been copied to a new area. It depends on the pointers
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* all being offset from base_addr.
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*/
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static __inline void
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mmd_fixup_ele(struct mac_module_data *oldbase,
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struct mac_module_data *newbase, struct mac_module_data_element *ele)
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{
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if (ele->key != NULL) { /* Array elements have no keys. */
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ele->key -= (uintptr_t)oldbase;
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ele->key += (uintptr_t)newbase;
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}
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ele->value -= (uintptr_t)oldbase;
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ele->value += (uintptr_t)newbase;
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}
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#endif
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#endif /* !_SECURITY_MAC_DATA_H_ */
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