OSX/libsecurity_asn1/lib/X509Templates.c

   1 /*
   2  * Copyright (c) 2003-2006,2008,2010-2012 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  * X509Templates.c - Common ASN1 templates for use with libNSSDer.
  24  */
  25
  26 #include "SecAsn1Templates.h"
  27 #include "X509Templates.h"
  28 #include "keyTemplates.h"
  29 #include <assert.h>
  30 #include <stddef.h>
  31
  32 /*
  33  * Validity
  34  */
  35 /*
  36  * NSS_Time Template chooser.
  37  */
  38 static const NSS_TagChoice timeChoices[] = {
  39         { SEC_ASN1_GENERALIZED_TIME, kSecAsn1GeneralizedTimeTemplate} ,
  40         { SEC_ASN1_UTC_TIME, kSecAsn1UTCTimeTemplate },
  41         { 0, NULL}
  42 };
  43
  44 static const SecAsn1Template * NSS_TimeChooser(
  45         void *arg,
  46         Boolean enc,
  47         const char *buf,
  48         size_t len,
  49         void *dest)
  50 {
  51         return SecAsn1TaggedTemplateChooser(arg, enc, buf, len, dest, timeChoices);
  52 }
  53
  54 static const SecAsn1TemplateChooserPtr NSS_TimeChooserPtr = NSS_TimeChooser;
  55
  56 const SecAsn1Template kSecAsn1ValidityTemplate[] = {
  57     { SEC_ASN1_SEQUENCE,
  58           0, NULL, sizeof(NSS_Validity) },
  59     { SEC_ASN1_INLINE | SEC_ASN1_DYNAMIC,
  60           offsetof(NSS_Validity,notBefore.item),
  61           &NSS_TimeChooserPtr },
  62     { SEC_ASN1_INLINE | SEC_ASN1_DYNAMIC,
  63           offsetof(NSS_Validity,notAfter.item),
  64           &NSS_TimeChooserPtr },
  65     { 0 }
  66 };
  67
  68 /* X509 cert extension */
  69 const SecAsn1Template kSecAsn1CertExtensionTemplate[] = {
  70     { SEC_ASN1_SEQUENCE,
  71           0, NULL, sizeof(NSS_CertExtension) },
  72     { SEC_ASN1_OBJECT_ID,
  73           offsetof(NSS_CertExtension,extnId) },
  74     { SEC_ASN1_OPTIONAL | SEC_ASN1_BOOLEAN,             /* XXX DER_DEFAULT */
  75           offsetof(NSS_CertExtension,critical) },
  76     { SEC_ASN1_OCTET_STRING,
  77           offsetof(NSS_CertExtension,value) },
  78     { 0, }
  79 };
  80
  81 const SecAsn1Template kSecAsn1SequenceOfCertExtensionTemplate[] = {
  82     { SEC_ASN1_SEQUENCE_OF, 0, kSecAsn1CertExtensionTemplate }
  83 };
  84
  85 /* TBS Cert */
  86 const SecAsn1Template kSecAsn1TBSCertificateTemplate[] = {
  87     { SEC_ASN1_SEQUENCE,
  88       0, NULL, sizeof(NSS_TBSCertificate) },
  89         /* optional version, explicit tag 0, default 0 */
  90     { SEC_ASN1_EXPLICIT | SEC_ASN1_OPTIONAL | SEC_ASN1_CONSTRUCTED |
  91           SEC_ASN1_CONTEXT_SPECIFIC | 0,                /* XXX DER_DEFAULT */
  92           offsetof(NSS_TBSCertificate,version),
  93           kSecAsn1IntegerTemplate },
  94         /* serial number is SIGNED integer */
  95     { SEC_ASN1_INTEGER | SEC_ASN1_SIGNED_INT,
  96           offsetof(NSS_TBSCertificate,serialNumber) },
  97     { SEC_ASN1_INLINE,
  98           offsetof(NSS_TBSCertificate,signature),
  99           kSecAsn1AlgorithmIDTemplate },
 100         { SEC_ASN1_SAVE, offsetof(NSS_TBSCertificate,derIssuer) },
 101     { SEC_ASN1_INLINE,
 102           offsetof(NSS_TBSCertificate,issuer),
 103           kSecAsn1NameTemplate },
 104     { SEC_ASN1_INLINE,
 105           offsetof(NSS_TBSCertificate,validity),
 106           kSecAsn1ValidityTemplate },
 107         { SEC_ASN1_SAVE, offsetof(NSS_TBSCertificate,derSubject) },
 108     { SEC_ASN1_INLINE,
 109           offsetof(NSS_TBSCertificate,subject),
 110           kSecAsn1NameTemplate },
 111     { SEC_ASN1_INLINE,
 112           offsetof(NSS_TBSCertificate,subjectPublicKeyInfo),
 113           kSecAsn1SubjectPublicKeyInfoTemplate },
 114     { SEC_ASN1_OPTIONAL | SEC_ASN1_CONTEXT_SPECIFIC | 1,
 115           offsetof(NSS_TBSCertificate,issuerID),
 116           kSecAsn1BitStringTemplate },
 117     { SEC_ASN1_OPTIONAL | SEC_ASN1_CONTEXT_SPECIFIC | 2,
 118           offsetof(NSS_TBSCertificate,subjectID),
 119           kSecAsn1BitStringTemplate },
 120     { SEC_ASN1_OPTIONAL | SEC_ASN1_CONSTRUCTED | SEC_ASN1_CONTEXT_SPECIFIC |
 121                         SEC_ASN1_EXPLICIT | 3,
 122           offsetof(NSS_TBSCertificate,extensions),
 123           kSecAsn1SequenceOfCertExtensionTemplate },
 124     { 0 }
 125 };
 126
 127 /*
 128  * For signing and verifying only, treating the TBS portion as an
 129  * opaque ASN_ANY blob.
 130  */
 131 const SecAsn1Template kSecAsn1SignedCertOrCRLTemplate[] =
 132 {
 133     { SEC_ASN1_SEQUENCE,
 134           0, NULL, sizeof(NSS_SignedCertOrCRL) },
 135     { SEC_ASN1_ANY,
 136           offsetof(NSS_SignedCertOrCRL,tbsBlob) },
 137     { SEC_ASN1_ANY,
 138           offsetof(NSS_SignedCertOrCRL,signatureAlgorithm) },
 139     { SEC_ASN1_BIT_STRING,
 140           offsetof(NSS_SignedCertOrCRL,signature) },
 141     { 0 }
 142 };
 143
 144 /* Fully specified signed certificate */
 145 const SecAsn1Template kSecAsn1SignedCertTemplate[] =
 146 {
 147     { SEC_ASN1_SEQUENCE,
 148           0, NULL, sizeof(NSS_Certificate) },
 149     { SEC_ASN1_INLINE,
 150           offsetof(NSS_Certificate,tbs),
 151           kSecAsn1TBSCertificateTemplate },
 152     { SEC_ASN1_INLINE,
 153           offsetof(NSS_Certificate,signatureAlgorithm),
 154           kSecAsn1AlgorithmIDTemplate },
 155     { SEC_ASN1_BIT_STRING,
 156           offsetof(NSS_Certificate,signature) },
 157     { 0 }
 158 };
 159
 160 /* Entry in CRL.revokedCerts */
 161 const SecAsn1Template kSecAsn1RevokedCertTemplate[] = {
 162     { SEC_ASN1_SEQUENCE,
 163           0, NULL, sizeof(NSS_RevokedCert) },
 164           /* serial number - signed itneger, just like in the actual cert */
 165     { SEC_ASN1_INTEGER | SEC_ASN1_SIGNED_INT,
 166           offsetof(NSS_RevokedCert,userCertificate) },
 167     { SEC_ASN1_INLINE | SEC_ASN1_DYNAMIC,
 168           offsetof(NSS_RevokedCert,revocationDate.item),
 169           &NSS_TimeChooserPtr },
 170     { SEC_ASN1_OPTIONAL | SEC_ASN1_SEQUENCE_OF,
 171           offsetof(NSS_RevokedCert,extensions),
 172           kSecAsn1CertExtensionTemplate },
 173     { 0, }
 174 };
 175
 176 const SecAsn1Template kSecAsn1SequenceOfRevokedCertTemplate[] = {
 177     { SEC_ASN1_SEQUENCE_OF, 0, kSecAsn1RevokedCertTemplate }
 178 };
 179
 180 /* NSS_TBSCrl (unsigned CRL) */
 181 const SecAsn1Template kSecAsn1TBSCrlTemplate[] = {
 182     { SEC_ASN1_SEQUENCE,
 183       0, NULL, sizeof(NSS_TBSCrl) },
 184         /* optional version, default 0 */
 185     { SEC_ASN1_INTEGER | SEC_ASN1_OPTIONAL, offsetof (NSS_TBSCrl, version) },
 186     { SEC_ASN1_INLINE,
 187           offsetof(NSS_TBSCrl,signature),
 188           kSecAsn1AlgorithmIDTemplate },
 189         { SEC_ASN1_SAVE, offsetof(NSS_TBSCrl,derIssuer) },
 190     { SEC_ASN1_INLINE,
 191           offsetof(NSS_TBSCrl,issuer),
 192           kSecAsn1NameTemplate },
 193     { SEC_ASN1_INLINE | SEC_ASN1_DYNAMIC,
 194           offsetof(NSS_TBSCrl,thisUpdate.item),
 195           &NSS_TimeChooserPtr },
 196     { SEC_ASN1_INLINE | SEC_ASN1_DYNAMIC | SEC_ASN1_OPTIONAL,
 197           offsetof(NSS_TBSCrl,nextUpdate),
 198           &NSS_TimeChooserPtr },
 199     { SEC_ASN1_OPTIONAL | SEC_ASN1_SEQUENCE_OF,
 200           offsetof(NSS_TBSCrl,revokedCerts),
 201           kSecAsn1RevokedCertTemplate },
 202     { SEC_ASN1_OPTIONAL | SEC_ASN1_CONSTRUCTED | SEC_ASN1_CONTEXT_SPECIFIC |
 203                         SEC_ASN1_EXPLICIT | 0,
 204           offsetof(NSS_TBSCrl,extensions),
 205           kSecAsn1SequenceOfCertExtensionTemplate },
 206     { 0, }
 207 };
 208
 209 /* Fully specified signed CRL */
 210 const SecAsn1Template kSecAsn1SignedCrlTemplate[] =
 211 {
 212     { SEC_ASN1_SEQUENCE,
 213           0, NULL, sizeof(NSS_Crl) },
 214     { SEC_ASN1_INLINE,
 215           offsetof(NSS_Crl,tbs),
 216           kSecAsn1TBSCrlTemplate },
 217     { SEC_ASN1_INLINE,
 218           offsetof(NSS_Crl,signatureAlgorithm),
 219           kSecAsn1AlgorithmIDTemplate },
 220     { SEC_ASN1_BIT_STRING,
 221           offsetof(NSS_Crl,signature) },
 222     { 0 }
 223 };