michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: /*
michael@0:  * X.509 v3 Subject Key Usage Extension 
michael@0:  *
michael@0:  */
michael@0: 
michael@0: #include "prtypes.h"
michael@0: #include "seccomon.h"
michael@0: #include "secdert.h"
michael@0: #include "secoidt.h"
michael@0: #include "secasn1t.h"
michael@0: #include "secasn1.h"
michael@0: #include "secport.h"
michael@0: #include "certt.h"  
michael@0: #include "genname.h"
michael@0: #include "secerr.h"
michael@0: 
michael@0: SEC_ASN1_MKSUB(SEC_IntegerTemplate)
michael@0: SEC_ASN1_MKSUB(SEC_OctetStringTemplate)
michael@0: 
michael@0: const SEC_ASN1Template CERTAuthKeyIDTemplate[] = {
michael@0:     { SEC_ASN1_SEQUENCE, 0, NULL, sizeof(CERTAuthKeyID) },
michael@0:     { SEC_ASN1_OPTIONAL | SEC_ASN1_CONTEXT_SPECIFIC | SEC_ASN1_XTRN | 0,
michael@0: 	  offsetof(CERTAuthKeyID,keyID), SEC_ASN1_SUB(SEC_OctetStringTemplate)},
michael@0:     { SEC_ASN1_OPTIONAL | SEC_ASN1_CONSTRUCTED | SEC_ASN1_CONTEXT_SPECIFIC  | 1,
michael@0:           offsetof(CERTAuthKeyID, DERAuthCertIssuer), CERT_GeneralNamesTemplate},
michael@0:     { SEC_ASN1_OPTIONAL | SEC_ASN1_CONTEXT_SPECIFIC | SEC_ASN1_XTRN | 2,
michael@0: 	  offsetof(CERTAuthKeyID,authCertSerialNumber),
michael@0:           SEC_ASN1_SUB(SEC_IntegerTemplate) },
michael@0:     { 0 }
michael@0: };
michael@0: 
michael@0: 
michael@0: 
michael@0: SECStatus CERT_EncodeAuthKeyID (PLArenaPool *arena, CERTAuthKeyID *value, SECItem *encodedValue)
michael@0: {
michael@0:     SECStatus rv = SECFailure;
michael@0:  
michael@0:     PORT_Assert (value);
michael@0:     PORT_Assert (arena);
michael@0:     PORT_Assert (value->DERAuthCertIssuer == NULL);
michael@0:     PORT_Assert (encodedValue);
michael@0: 
michael@0:     do {
michael@0: 	
michael@0: 	/* If both of the authCertIssuer and the serial number exist, encode
michael@0: 	   the name first.  Otherwise, it is an error if one exist and the other
michael@0: 	   is not.
michael@0: 	 */
michael@0: 	if (value->authCertIssuer) {
michael@0: 	    if (!value->authCertSerialNumber.data) {
michael@0: 		PORT_SetError (SEC_ERROR_EXTENSION_VALUE_INVALID);
michael@0: 		break;
michael@0: 	    }
michael@0: 
michael@0: 	    value->DERAuthCertIssuer = cert_EncodeGeneralNames
michael@0: 		(arena, value->authCertIssuer);
michael@0: 	    if (!value->DERAuthCertIssuer) {
michael@0: 		PORT_SetError (SEC_ERROR_EXTENSION_VALUE_INVALID);
michael@0: 		break;
michael@0: 	    }
michael@0: 	}
michael@0: 	else if (value->authCertSerialNumber.data) {
michael@0: 		PORT_SetError (SEC_ERROR_EXTENSION_VALUE_INVALID);
michael@0: 		break;
michael@0: 	}
michael@0: 
michael@0: 	if (SEC_ASN1EncodeItem (arena, encodedValue, value,
michael@0: 				CERTAuthKeyIDTemplate) == NULL)
michael@0: 	    break;
michael@0: 	rv = SECSuccess;
michael@0: 
michael@0:     } while (0);
michael@0:      return(rv);
michael@0: }
michael@0: 
michael@0: CERTAuthKeyID *
michael@0: CERT_DecodeAuthKeyID (PLArenaPool *arena, const SECItem *encodedValue)
michael@0: {
michael@0:     CERTAuthKeyID * value = NULL;
michael@0:     SECStatus       rv    = SECFailure;
michael@0:     void *          mark;
michael@0:     SECItem         newEncodedValue;
michael@0: 
michael@0:     PORT_Assert (arena);
michael@0:    
michael@0:     do {
michael@0: 	mark = PORT_ArenaMark (arena);
michael@0: 	value = (CERTAuthKeyID*)PORT_ArenaZAlloc (arena, sizeof (*value));
michael@0: 	if (value == NULL)
michael@0: 	    break;
michael@0: 	value->DERAuthCertIssuer = NULL;
michael@0:         /* copy the DER into the arena, since Quick DER returns data that points
michael@0:            into the DER input, which may get freed by the caller */
michael@0:         rv = SECITEM_CopyItem(arena, &newEncodedValue, encodedValue);
michael@0:         if ( rv != SECSuccess ) {
michael@0: 	    break;
michael@0:         }
michael@0: 
michael@0:         rv = SEC_QuickDERDecodeItem
michael@0: 	     (arena, value, CERTAuthKeyIDTemplate, &newEncodedValue);
michael@0: 	if (rv != SECSuccess)
michael@0: 	    break;
michael@0: 
michael@0:         value->authCertIssuer = cert_DecodeGeneralNames (arena, value->DERAuthCertIssuer);
michael@0: 	if (value->authCertIssuer == NULL)
michael@0: 	    break;
michael@0: 	
michael@0: 	/* what if the general name contains other format but not URI ?
michael@0: 	   hl
michael@0: 	 */
michael@0: 	if ((value->authCertSerialNumber.data && !value->authCertIssuer) ||
michael@0: 	    (!value->authCertSerialNumber.data && value->authCertIssuer)){
michael@0: 	    PORT_SetError (SEC_ERROR_EXTENSION_VALUE_INVALID);
michael@0: 	    break;
michael@0: 	}
michael@0:     } while (0);
michael@0: 
michael@0:     if (rv != SECSuccess) {
michael@0: 	PORT_ArenaRelease (arena, mark);
michael@0: 	return ((CERTAuthKeyID *)NULL);	    
michael@0:     } 
michael@0:     PORT_ArenaUnmark(arena, mark);
michael@0:     return (value);
michael@0: }