trust/trustd/SecTrustServer.h

   1 /*
   2  * Copyright (c) 2008-2009,2012-2014,2017 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  * SecTrustServer.h - certificate trust evaluation engine
  24  *
  25  *
  26  */
  27
  28 #ifndef _SECURITY_SECTRUSTSERVER_H_
  29 #define _SECURITY_SECTRUSTSERVER_H_
  30
  31 #include <CoreFoundation/CFString.h>
  32
  33 #include <Security/SecTrust.h>
  34 #include <Security/SecBasePriv.h> /* For errSecWaitForCallback. */
  35 #include "trust/trustd/SecCertificateServer.h"
  36 #include "trust/trustd/SecCertificateSource.h"
  37 #include <mach/port.h>
  38
  39 __BEGIN_DECLS
  40
  41 typedef struct SecPathBuilder *SecPathBuilderRef;
  42
  43 typedef struct OpaqueSecPVC *SecPVCRef;
  44
  45 struct OpaqueSecPVC {
  46     SecPathBuilderRef builder;
  47     CFArrayRef policies;
  48     CFDictionaryRef callbacks;
  49     CFIndex policyIX;
  50     bool require_revocation_response;
  51
  52     CFArrayRef leafDetails;
  53     SecTrustResultType leafResult;
  54
  55     CFArrayRef details;
  56     SecTrustResultType result;
  57 };
  58
  59 /* Completion callback. */
  60 typedef void(*SecPathBuilderCompleted)(const void *userData,
  61     CFArrayRef chain, CFArrayRef details, CFDictionaryRef info,
  62     SecTrustResultType result);
  63
  64 /* Returns a new trust path builder and policy evaluation engine instance. */
  65 SecPathBuilderRef SecPathBuilderCreate(dispatch_queue_t builderQueue, CFDataRef clientAuditToken,
  66     CFArrayRef certificates, CFArrayRef anchors, bool anchorsOnly,
  67     bool keychainsAllowed, CFArrayRef policies, CFArrayRef ocspResponse,
  68     CFArrayRef signedCertificateTimestamps, CFArrayRef trustedLogs,
  69     CFAbsoluteTime verifyTime, CFArrayRef accessGroups, CFArrayRef exceptions,
  70     SecPathBuilderCompleted completed, const void *userData);
  71
  72 /* Returns true if it's ok to perform network operations for this builder. */
  73 bool SecPathBuilderCanAccessNetwork(SecPathBuilderRef builder);
  74
  75 /* Disable or enable network access for this builder if allow is false
  76    network access will be disabled. */
  77 void SecPathBuilderSetCanAccessNetwork(SecPathBuilderRef builder, bool allow);
  78
  79 /* Get the stapled SCTs */
  80 CFArrayRef SecPathBuilderCopySignedCertificateTimestamps(SecPathBuilderRef builder);
  81 CFArrayRef SecPathBuilderCopyOCSPResponses(SecPathBuilderRef builder);
  82 CFDictionaryRef SecPathBuilderCopyTrustedLogs(SecPathBuilderRef builder);
  83
  84 CFSetRef SecPathBuilderGetAllPaths(SecPathBuilderRef builder);
  85 SecCertificatePathVCRef SecPathBuilderGetPath(SecPathBuilderRef builder);
  86 SecCertificatePathVCRef SecPathBuilderGetBestPath(SecPathBuilderRef builder);
  87 CFAbsoluteTime SecPathBuilderGetVerifyTime(SecPathBuilderRef builder);
  88 CFIndex SecPathBuilderGetCertificateCount(SecPathBuilderRef builder);
  89 SecCertificateRef SecPathBuilderGetCertificateAtIndex(SecPathBuilderRef builder, CFIndex ix);
  90 CFArrayRef SecPathBuilderGetExceptions(SecPathBuilderRef builder);
  91 bool SecPathBuilderHasTemporalParentChecks(SecPathBuilderRef builder);
  92
  93 /* Returns the isAnchored status of the path. The path builder sets isAnchored
  94  * based solely on whether the terminating cert has some sort of trust setting
  95  * on it. This check does NOT reflect whether that anchor is actually trusted,
  96  * as trust in an anchor is contextual to the policy being validated. */
  97 bool SecPathBuilderIsAnchored(SecPathBuilderRef builder);
  98 bool SecPathBuilderIsAnchorSource(SecPathBuilderRef builder, SecCertificateSourceRef source);
  99 SecCertificateSourceRef SecPathBuilderGetAppAnchorSource(SecPathBuilderRef builder);
 100
 101 CFIndex SecPathBuilderGetPVCCount(SecPathBuilderRef builder);
 102 SecPVCRef SecPathBuilderGetPVCAtIndex(SecPathBuilderRef builder, CFIndex ix);
 103
 104 /* Returns the first PVC that passed */
 105 SecPVCRef SecPathBuilderGetResultPVC(SecPathBuilderRef builder);
 106
 107 void SecPathBuilderSetResultInPVCs(SecPathBuilderRef builder, CFStringRef key,
 108                                    CFIndex ix, CFTypeRef result, bool force);
 109
 110 /* This is an atomic pre-decrement operation */
 111 unsigned int SecPathBuilderDecrementAsyncJobCount(SecPathBuilderRef builder);
 112 void SecPathBuilderSetAsyncJobCount(SecPathBuilderRef builder, unsigned int jobCount);
 113 unsigned int SecPathBuilderGetAsyncJobCount(SecPathBuilderRef builder);
 114
 115 CFMutableDictionaryRef SecPathBuilderGetInfo(SecPathBuilderRef builder);
 116
 117 /* Enable revocation checking if the rest of the policy checks succeed. */
 118 CFStringRef SecPathBuilderGetRevocationMethod(SecPathBuilderRef builder);
 119 void SecPathBuilderSetRevocationMethod(SecPathBuilderRef builder, CFStringRef method);
 120
 121 /* Require a online revocation response for the chain. */
 122 bool SecPathBuilderGetCheckRevocationOnline(SecPathBuilderRef builder);
 123 void SecPathBuilderSetCheckRevocationOnline(SecPathBuilderRef builder);
 124
 125 /* Only do networking for revocation if the chain is trusted */
 126 bool SecPathBuilderGetCheckRevocationIfTrusted(SecPathBuilderRef builder);
 127 void SecPathBuilderSetCheckRevocationIfTrusted(SecPathBuilderRef builder);
 128
 129 /* Core of the trust evaluation engine, this will invoke the completed
 130    callback and return false if the evaluation completed, or return true if
 131    the evaluation is still waiting for some external event (usually the
 132    network). */
 133 bool SecPathBuilderStep(SecPathBuilderRef builder);
 134
 135 /* Return the dispatch queue to be used by this builder. */
 136 dispatch_queue_t SecPathBuilderGetQueue(SecPathBuilderRef builder);
 137
 138 /* Return the client audit token associated with this path builder,
 139    which caller must release, or NULL if there is no external client. */
 140 CFDataRef SecPathBuilderCopyClientAuditToken(SecPathBuilderRef builder);
 141
 142 /* Evaluate trust and call evaluated when done. */
 143 void SecTrustServerEvaluateBlock(dispatch_queue_t builderQueue, CFDataRef clientAuditToken, CFArrayRef certificates, CFArrayRef anchors, bool anchorsOnly, bool keychainsAllowed, CFArrayRef policies, CFArrayRef responses, CFArrayRef SCTs, CFArrayRef trustedLogs, CFAbsoluteTime verifyTime, __unused CFArrayRef accessGroups, CFArrayRef exceptions, void (^evaluated)(SecTrustResultType tr, CFArrayRef details, CFDictionaryRef info, CFArrayRef chain, CFErrorRef error));
 144
 145 /* Synchronously invoke SecTrustServerEvaluateBlock. */
 146 SecTrustResultType SecTrustServerEvaluate(CFArrayRef certificates, CFArrayRef anchors, bool anchorsOnly, bool keychainsAllowed, CFArrayRef policies, CFArrayRef responses, CFArrayRef SCTs, CFArrayRef trustedLogs, CFAbsoluteTime verifyTime, __unused CFArrayRef accessGroups, CFArrayRef exceptions, CFArrayRef *details, CFDictionaryRef *info, CFArrayRef *chain, CFErrorRef *error);
 147
 148 /* TrustAnalytics builder types */
 149 typedef CF_OPTIONS(uint8_t, TA_SCTSource) {
 150     TA_SCTEmbedded  = 1 << 0,
 151     TA_SCT_OCSP     = 1 << 1,
 152     TA_SCT_TLS      = 1 << 2,
 153 };
 154
 155 typedef CF_OPTIONS(uint8_t, TAValidStatus) {
 156     TAValidDefinitelyOK = 1 << 0,
 157     TAValidProbablyOK = 1 << 1,
 158     TAValidProbablyRevoked = 1 << 2,
 159     TAValidDefinitelyRevoked = 1 << 3,
 160     TAValidDateConstrainedOK = 1 << 4,
 161     TAValidDateConstrainedRevoked = 1 << 5,
 162     TAValidPolicyConstrainedOK = 1 << 6,
 163     TAValidPolicyConstrainedDenied = 1 << 7,
 164 };
 165
 166 typedef struct {
 167     uint64_t start_time;
 168     bool suspected_mitm;
 169     bool ca_fail_eku_check;
 170     // Certificate Transparency
 171     TA_SCTSource sct_sources;
 172     uint32_t number_scts;
 173     uint32_t number_trusted_scts;
 174     bool ct_one_current;
 175     // CAIssuer
 176     bool ca_issuer_cache_hit;
 177     bool ca_issuer_network;
 178     uint32_t ca_issuer_fetches;
 179     uint64_t ca_issuer_fetch_time;
 180     uint32_t ca_issuer_fetch_failed;
 181     bool ca_issuer_unsupported_data;
 182     bool ca_issuer_multiple_certs;
 183     // OCSP
 184     bool ocsp_no_check;
 185     bool ocsp_cache_hit;
 186     bool ocsp_network;
 187     uint32_t ocsp_fetches;
 188     uint64_t ocsp_fetch_time;
 189     uint32_t ocsp_fetch_failed;
 190     bool ocsp_validation_failed;
 191     bool ocsp_weak_hash;
 192     // Valid
 193     TAValidStatus valid_status;
 194     bool valid_trigger_ocsp;
 195     bool valid_require_ct;
 196     bool valid_known_intermediates_only;
 197     bool valid_unknown_intermediate;
 198 } TrustAnalyticsBuilder;
 199
 200 TrustAnalyticsBuilder *SecPathBuilderGetAnalyticsData(SecPathBuilderRef builder);
 201
 202 __END_DECLS
 203
 204 #endif /* !_SECURITY_SECTRUSTSERVER_H_ */