security/nss/lib/certdb/xauthkid.c

   1 /* ***** BEGIN LICENSE BLOCK *****
   2  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   3  *
   4  * The contents of this file are subject to the Mozilla Public License Version
   5  * 1.1 (the "License"); you may not use this file except in compliance with
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  10  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  11  * for the specific language governing rights and limitations under the
  12  * License.
  13  *
  14  * The Original Code is the Netscape security libraries.
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  16  * The Initial Developer of the Original Code is
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  19  * the Initial Developer. All Rights Reserved.
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  22  *
  23  * Alternatively, the contents of this file may be used under the terms of
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  35  * ***** END LICENSE BLOCK ***** */
  36
  37 /*
  38  * X.509 v3 Subject Key Usage Extension
  39  *
  40  */
  41
  42 #include "prtypes.h"
  43 #include "mcom_db.h"
  44 #include "seccomon.h"
  45 #include "secdert.h"
  46 #include "secoidt.h"
  47 #include "secasn1t.h"
  48 #include "secasn1.h"
  49 #include "secport.h"
  50 #include "certt.h"
  51 #include "genname.h"
  52 #include "secerr.h"
  53
  54
  55 const SEC_ASN1Template CERTAuthKeyIDTemplate[] = {
  56     { SEC_ASN1_SEQUENCE, 0, NULL, sizeof(CERTAuthKeyID) },
  57     { SEC_ASN1_OPTIONAL | SEC_ASN1_CONTEXT_SPECIFIC | 0,
  58           offsetof(CERTAuthKeyID,keyID), SEC_OctetStringTemplate},
  59     { SEC_ASN1_OPTIONAL | SEC_ASN1_CONSTRUCTED | SEC_ASN1_CONTEXT_SPECIFIC  | 1,
  60           offsetof(CERTAuthKeyID, DERAuthCertIssuer), CERT_GeneralNamesTemplate},
  61     { SEC_ASN1_OPTIONAL | SEC_ASN1_CONTEXT_SPECIFIC | 2,
  62           offsetof(CERTAuthKeyID,authCertSerialNumber), SEC_IntegerTemplate},
  63     { 0 }
  64 };
  65
  66
  67
  68 SECStatus CERT_EncodeAuthKeyID (PRArenaPool *arena, CERTAuthKeyID *value, SECItem *encodedValue)
  69 {
  70     SECStatus rv = SECFailure;
  71
  72     PORT_Assert (value);
  73     PORT_Assert (arena);
  74     PORT_Assert (value->DERAuthCertIssuer == NULL);
  75     PORT_Assert (encodedValue);
  76
  77     do {
  78
  79         /* If both of the authCertIssuer and the serial number exist, encode
  80            the name first.  Otherwise, it is an error if one exist and the other
  81            is not.
  82          */
  83         if (value->authCertIssuer) {
  84             if (!value->authCertSerialNumber.data) {
  85                 PORT_SetError (SEC_ERROR_EXTENSION_VALUE_INVALID);
  86                 break;
  87             }
  88
  89             value->DERAuthCertIssuer = cert_EncodeGeneralNames
  90                 (arena, value->authCertIssuer);
  91             if (!value->DERAuthCertIssuer) {
  92                 PORT_SetError (SEC_ERROR_EXTENSION_VALUE_INVALID);
  93                 break;
  94             }
  95         }
  96         else if (value->authCertSerialNumber.data) {
  97                 PORT_SetError (SEC_ERROR_EXTENSION_VALUE_INVALID);
  98                 break;
  99         }
 100
 101         if (SEC_ASN1EncodeItem (arena, encodedValue, value,
 102                                 CERTAuthKeyIDTemplate) == NULL)
 103             break;
 104         rv = SECSuccess;
 105
 106     } while (0);
 107      return(rv);
 108 }
 109
 110 CERTAuthKeyID *
 111 CERT_DecodeAuthKeyID (PRArenaPool *arena, SECItem *encodedValue)
 112 {
 113     CERTAuthKeyID * value = NULL;
 114     SECStatus       rv    = SECFailure;
 115     void *          mark;
 116     SECItem         newEncodedValue;
 117
 118     PORT_Assert (arena);
 119
 120     do {
 121         mark = PORT_ArenaMark (arena);
 122         value = (CERTAuthKeyID*)PORT_ArenaZAlloc (arena, sizeof (*value));
 123         if (value == NULL)
 124             break;
 125         value->DERAuthCertIssuer = NULL;
 126         /* copy the DER into the arena, since Quick DER returns data that points
 127            into the DER input, which may get freed by the caller */
 128         rv = SECITEM_CopyItem(arena, &newEncodedValue, encodedValue);
 129         if ( rv != SECSuccess ) {
 130             break;
 131         }
 132
 133         rv = SEC_QuickDERDecodeItem
 134              (arena, value, CERTAuthKeyIDTemplate, &newEncodedValue);
 135         if (rv != SECSuccess)
 136             break;
 137
 138         value->authCertIssuer = cert_DecodeGeneralNames (arena, value->DERAuthCertIssuer);
 139         if (value->authCertIssuer == NULL)
 140             break;
 141
 142         /* what if the general name contains other format but not URI ?
 143            hl
 144          */
 145         if ((value->authCertSerialNumber.data && !value->authCertIssuer) ||
 146             (!value->authCertSerialNumber.data && value->authCertIssuer)){
 147             PORT_SetError (SEC_ERROR_EXTENSION_VALUE_INVALID);
 148             break;
 149         }
 150     } while (0);
 151
 152     if (rv != SECSuccess) {
 153         PORT_ArenaRelease (arena, mark);
 154         return ((CERTAuthKeyID *)NULL);
 155     }
 156     PORT_ArenaUnmark(arena, mark);
 157     return (value);
 158 }