1/* 2 * Copyright (c) 2011-2012 Apple Inc. All Rights Reserved. 3 * 4 * @APPLE_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. Please obtain a copy of the License at 10 * http://www.opensource.apple.com/apsl/ and read it before using this 11 * file. 12 * 13 * The Original Code and all software distributed under the License are 14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 18 * Please see the License for the specific language governing rights and 19 * limitations under the License. 20 * 21 * @APPLE_LICENSE_HEADER_END@ 22 */ 23#ifndef _H_POLICYENGINE 24#define _H_POLICYENGINE 25 26#include "SecAssessment.h" 27#include "opaquewhitelist.h" 28#include "policydb.h" 29#include <security_utilities/globalizer.h> 30#include <security_utilities/cfutilities.h> 31#include <security_utilities/hashing.h> 32#include <security_utilities/sqlite++.h> 33#include <CoreFoundation/CoreFoundation.h> 34#include <Security/CodeSigning.h> 35 36namespace Security { 37namespace CodeSigning { 38 39 40typedef uint EngineOperation; 41enum { 42 opInvalid = 0, 43 opEvaluate, 44 opAddAuthority, 45 opRemoveAuthority, 46}; 47 48 49class PolicyEngine : public PolicyDatabase { 50public: 51 PolicyEngine(); 52 virtual ~PolicyEngine(); 53 54public: 55 void evaluate(CFURLRef path, AuthorityType type, SecAssessmentFlags flags, CFDictionaryRef context, CFMutableDictionaryRef result); 56 57 CFDictionaryRef update(CFTypeRef target, SecAssessmentFlags flags, CFDictionaryRef context); 58 CFDictionaryRef add(CFTypeRef target, AuthorityType type, SecAssessmentFlags flags, CFDictionaryRef context); 59 CFDictionaryRef remove(CFTypeRef target, AuthorityType type, SecAssessmentFlags flags, CFDictionaryRef context); 60 CFDictionaryRef enable(CFTypeRef target, AuthorityType type, SecAssessmentFlags flags, CFDictionaryRef context); 61 CFDictionaryRef disable(CFTypeRef target, AuthorityType type, SecAssessmentFlags flags, CFDictionaryRef context); 62 CFDictionaryRef find(CFTypeRef target, AuthorityType type, SecAssessmentFlags flags, CFDictionaryRef context); 63 64 void recordFailure(CFDictionaryRef info); 65 66public: 67 static void addAuthority(SecAssessmentFlags flags, CFMutableDictionaryRef parent, const char *label, SQLite::int64 row = 0, CFTypeRef cacheInfo = NULL, bool weak = false); 68 static void addToAuthority(CFMutableDictionaryRef parent, CFStringRef key, CFTypeRef value); 69 70private: 71 void evaluateCode(CFURLRef path, AuthorityType type, SecAssessmentFlags flags, CFDictionaryRef context, CFMutableDictionaryRef result, bool handleUnsigned); 72 void evaluateInstall(CFURLRef path, SecAssessmentFlags flags, CFDictionaryRef context, CFMutableDictionaryRef result); 73 void evaluateDocOpen(CFURLRef path, SecAssessmentFlags flags, CFDictionaryRef context, CFMutableDictionaryRef result); 74 75 void evaluateCodeItem(SecStaticCodeRef code, CFURLRef path, AuthorityType type, SecAssessmentFlags flags, bool nested, CFMutableDictionaryRef result); 76 void adjustValidation(SecStaticCodeRef code); 77 bool temporarySigning(SecStaticCodeRef code, AuthorityType type, CFURLRef path, SecAssessmentFlags matchFlags); 78 void normalizeTarget(CFRef<CFTypeRef> &target, AuthorityType type, CFDictionary &context, std::string *signUnsigned); 79 80 void selectRules(SQLite::Statement &action, std::string stanza, std::string table, 81 CFTypeRef inTarget, AuthorityType type, SecAssessmentFlags flags, CFDictionaryRef context, std::string suffix = ""); 82 CFDictionaryRef manipulateRules(const std::string &stanza, 83 CFTypeRef target, AuthorityType type, SecAssessmentFlags flags, CFDictionaryRef context); 84 85 void setOrigin(CFArrayRef chain, CFMutableDictionaryRef result); 86 87 void recordOutcome(SecStaticCodeRef code, bool allow, AuthorityType type, double expires, SQLite::int64 authority); 88 89private: 90 OpaqueWhitelist mOpaqueWhitelist; 91}; 92 93 94} // end namespace CodeSigning 95} // end namespace Security 96 97#endif //_H_POLICYENGINE 98