The Tor Browser: security/nss/lib/crmf/crmfreq.c@b8a032363ba2 (annotated)

security/nss/lib/crmf/crmfreq.c@b8a032363ba2 (annotated)

security/nss/lib/crmf/crmfreq.c

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 /* -*- Mode: C; tab-width: 8 -*-*/
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 #include "crmf.h"
 #include "crmfi.h"
 #include "keyhi.h"
 #include "secder.h"
 /*
  * Macro that returns PR_TRUE if the pointer is not NULL.
  * If the pointer is NULL, then the macro will return PR_FALSE.
  */
 #define IS_NOT_NULL(ptr) ((ptr) == NULL) ? PR_FALSE : PR_TRUE
 const unsigned char hexTrue  = 0xff;
 const unsigned char hexFalse = 0x00;
 SECStatus
 crmf_encode_integer(PLArenaPool *poolp, SECItem *dest, long value)
 {
     SECItem *dummy;
     dummy = SEC_ASN1EncodeInteger(poolp, dest, value);
     PORT_Assert (dummy == dest);
     if (dummy == NULL) {
         return SECFailure;
     }
     return SECSuccess;
 }
 SECStatus
 crmf_encode_unsigned_integer(PLArenaPool *poolp, SECItem *dest,
                              unsigned long value)
 {
     SECItem *dummy;
     dummy = SEC_ASN1EncodeUnsignedInteger(poolp, dest, value);
     PORT_Assert (dummy == dest);
     if (dummy != dest) {
         return SECFailure;
     }
     return SECSuccess;
 }
 static SECStatus
 crmf_copy_secitem (PLArenaPool *poolp, SECItem *dest, SECItem *src)
 {
     return  SECITEM_CopyItem (poolp, dest, src);
 }
 PRBool
 CRMF_DoesRequestHaveField (CRMFCertRequest       *inCertReq,
 			   CRMFCertTemplateField  inField)
 {
     PORT_Assert(inCertReq != NULL);
     if (inCertReq == NULL) {
         return PR_FALSE;
     }
     switch (inField) {
     case crmfVersion:
         return inCertReq->certTemplate.version.data != NULL;
     case crmfSerialNumber:
         return inCertReq->certTemplate.serialNumber.data != NULL;
     case crmfSigningAlg:
         return inCertReq->certTemplate.signingAlg != NULL;
     case crmfIssuer:
         return inCertReq->certTemplate.issuer != NULL;
     case crmfValidity:
         return inCertReq->certTemplate.validity != NULL;
     case crmfSubject:
         return inCertReq->certTemplate.subject != NULL;
     case crmfPublicKey:
         return inCertReq->certTemplate.publicKey != NULL;
     case crmfIssuerUID:
         return inCertReq->certTemplate.issuerUID.data != NULL;
     case crmfSubjectUID:
         return inCertReq->certTemplate.subjectUID.data != NULL;
     case crmfExtension:
         return CRMF_CertRequestGetNumberOfExtensions(inCertReq) != 0;
     }
     return PR_FALSE;
 }
 CRMFCertRequest *
 CRMF_CreateCertRequest (PRUint32 inRequestID)
 {
     PLArenaPool     *poolp;
     CRMFCertRequest *certReq;
     SECStatus        rv;
     poolp = PORT_NewArena(CRMF_DEFAULT_ARENA_SIZE);
     if (poolp == NULL) {
         goto loser;
     }
     certReq=PORT_ArenaZNew(poolp,CRMFCertRequest);
     if (certReq == NULL) {
         goto loser;
     }
     certReq->poolp = poolp;
     certReq->requestID = inRequestID;
     rv = crmf_encode_unsigned_integer(poolp, &(certReq->certReqId),
                                       inRequestID);
     if (rv != SECSuccess) {
         goto loser;
     }
     return certReq;
  loser:
     if (poolp) {
         PORT_FreeArena(poolp, PR_FALSE);
     }
     return NULL;
 }
 SECStatus
 CRMF_DestroyCertRequest(CRMFCertRequest *inCertReq)
 {
     PORT_Assert(inCertReq != NULL);
     if (inCertReq != NULL) {
         if (inCertReq->certTemplate.extensions) {
 	    PORT_Free(inCertReq->certTemplate.extensions);
 	}
 	if (inCertReq->controls) {
 	    /* Right now we don't support EnveloppedData option,
 	     * so we won't go through and delete each occurrence of
 	     * an EnveloppedData in the control.
 	     */
 	    PORT_Free(inCertReq->controls);
 	}
 	if (inCertReq->poolp) {
 	    PORT_FreeArena(inCertReq->poolp, PR_TRUE);
 	}
     }
     return SECSuccess;
 }
 static SECStatus
 crmf_template_add_version(PLArenaPool *poolp, SECItem *dest, long version)
 {
     return (crmf_encode_integer(poolp, dest, version));
 }
 static SECStatus
 crmf_template_add_serialnumber(PLArenaPool *poolp, SECItem *dest, long serial)
 {
     return (crmf_encode_integer(poolp, dest, serial));
 }
 SECStatus
 crmf_template_copy_secalg (PLArenaPool *poolp, SECAlgorithmID **dest,
 			   SECAlgorithmID* src)
 {
     SECStatus         rv;
     void             *mark = NULL;
     SECAlgorithmID   *mySecAlg;
     if (!poolp) {
         PORT_SetError(SEC_ERROR_INVALID_ARGS);
         return SECFailure;
     }
     mark = PORT_ArenaMark(poolp);
     *dest = mySecAlg = PORT_ArenaZNew(poolp, SECAlgorithmID);
     if (mySecAlg == NULL) {
         goto loser;
     }
     rv = SECOID_CopyAlgorithmID(poolp, mySecAlg, src);
     if (rv != SECSuccess) {
         goto loser;
     }
     if (mark) {
         PORT_ArenaUnmark(poolp, mark);
     }
     return SECSuccess;
  loser:
     *dest = NULL;
     if (mark) {
         PORT_ArenaRelease(poolp, mark);
     }
     return SECFailure;
 }
 SECStatus
 crmf_copy_cert_name(PLArenaPool *poolp, CERTName **dest,
 		    CERTName *src)
 {
     CERTName *newName;
     SECStatus rv;
     void     *mark;
     mark = PORT_ArenaMark(poolp);
     *dest = newName = PORT_ArenaZNew(poolp, CERTName);
     if (newName == NULL) {
         goto loser;
     }
     rv = CERT_CopyName(poolp, newName, src);
     if (rv != SECSuccess) {
       goto loser;
     }
     PORT_ArenaUnmark(poolp, mark);
     return SECSuccess;
  loser:
     PORT_ArenaRelease(poolp, mark);
     *dest = NULL;
     return SECFailure;
 }
 static SECStatus
 crmf_template_add_issuer (PLArenaPool *poolp, CERTName **dest,
 			  CERTName* issuerName)
 {
     return crmf_copy_cert_name(poolp, dest, issuerName);
 }
 static SECStatus
 crmf_template_add_validity (PLArenaPool *poolp, CRMFOptionalValidity **dest,
 			    CRMFValidityCreationInfo *info)
 {
     SECStatus             rv;
     void                 *mark;
     CRMFOptionalValidity *myValidity;
     /*First off, let's make sure at least one of the two fields is present*/
     if (!info  || (!info->notBefore && !info->notAfter)) {
         return SECFailure;
     }
     mark = PORT_ArenaMark (poolp);
     *dest = myValidity = PORT_ArenaZNew(poolp, CRMFOptionalValidity);
     if (myValidity == NULL) {
         goto loser;
     }
     if (info->notBefore) {
         rv = DER_EncodeTimeChoice (poolp, &myValidity->notBefore,
 				  *info->notBefore);
 	if (rv != SECSuccess) {
 	    goto loser;
 	}
     }
     if (info->notAfter) {
         rv = DER_EncodeTimeChoice (poolp, &myValidity->notAfter,
 				  *info->notAfter);
 	if (rv != SECSuccess) {
 	    goto loser;
 	}
     }
     PORT_ArenaUnmark(poolp, mark);
     return SECSuccess;
  loser:
     PORT_ArenaRelease(poolp, mark);
     *dest = NULL;
     return SECFailure;
 }
 static SECStatus
 crmf_template_add_subject (PLArenaPool *poolp, CERTName **dest,
 			   CERTName *subject)
 {
     return crmf_copy_cert_name(poolp, dest, subject);
 }
 SECStatus
 crmf_template_add_public_key(PLArenaPool *poolp,
 			     CERTSubjectPublicKeyInfo **dest,
 			     CERTSubjectPublicKeyInfo  *pubKey)
 {
     CERTSubjectPublicKeyInfo *spki;
     SECStatus rv;
     *dest = spki = (poolp == NULL) ?
                               PORT_ZNew(CERTSubjectPublicKeyInfo) :
                               PORT_ArenaZNew (poolp, CERTSubjectPublicKeyInfo);
     if (spki == NULL) {
         goto loser;
     }
     rv = SECKEY_CopySubjectPublicKeyInfo (poolp, spki, pubKey);
     if (rv != SECSuccess) {
         goto loser;
     }
     return SECSuccess;
  loser:
     if (poolp == NULL && spki != NULL) {
         SECKEY_DestroySubjectPublicKeyInfo(spki);
     }
     *dest = NULL;
     return SECFailure;
 }
 static SECStatus
 crmf_copy_bitstring (PLArenaPool *poolp, SECItem *dest, const SECItem *src)
 {
     SECStatus rv;
     SECItem  byteSrc;
     byteSrc = *src;
     byteSrc.len = CRMF_BITS_TO_BYTES(byteSrc.len);
     rv = crmf_copy_secitem(poolp, dest, &byteSrc);
     dest->len = src->len;
     return rv;
 }
 static SECStatus
 crmf_template_add_issuer_uid(PLArenaPool *poolp, SECItem *dest,
 			     const SECItem *issuerUID)
 {
     return crmf_copy_bitstring (poolp, dest, issuerUID);
 }
 static SECStatus
 crmf_template_add_subject_uid(PLArenaPool *poolp, SECItem *dest,
 			      const SECItem *subjectUID)
 {
     return crmf_copy_bitstring (poolp, dest, subjectUID);
 }
 static void
 crmf_zeroize_new_extensions (CRMFCertExtension **extensions,
 			     int numToZeroize)
 {
     PORT_Memset((void*)extensions, 0, sizeof(CERTCertExtension*)*numToZeroize);
 }
 /*
  * The strategy for adding templates will differ from all the other
  * attributes in the template.  First, we want to allow the client
  * of this API to set extensions more than just once.  So we will
  * need the ability grow the array of extensions.  Since arenas don't
  * give us the realloc function, we'll use the generic PORT_* functions
  * to allocate the array of pointers *ONLY*.  Then we will allocate each
  * individual extension from the arena that comes along with the certReq
  * structure that owns this template.
  */
 static SECStatus
 crmf_template_add_extensions(PLArenaPool *poolp, CRMFCertTemplate *inTemplate,
 			     CRMFCertExtCreationInfo *extensions)
 {
     void               *mark;
     int                 newSize, oldSize, i;
     SECStatus           rv;
     CRMFCertExtension **extArray;
     CRMFCertExtension  *newExt, *currExt;
     mark = PORT_ArenaMark(poolp);
     if (inTemplate->extensions == NULL) {
         newSize = extensions->numExtensions;
         extArray = PORT_ZNewArray(CRMFCertExtension*,newSize+1);
     } else {
         newSize = inTemplate->numExtensions + extensions->numExtensions;
         extArray = PORT_Realloc(inTemplate->extensions,
 				sizeof(CRMFCertExtension*)*(newSize+1));
     }
     if (extArray == NULL) {
         goto loser;
     }
     oldSize                   = inTemplate->numExtensions;
     inTemplate->extensions    = extArray;
     inTemplate->numExtensions = newSize;
     for (i=oldSize; i < newSize; i++) {
         newExt = PORT_ArenaZNew(poolp, CRMFCertExtension);
 	if (newExt == NULL) {
 	    goto loser2;
 	}
 	currExt = extensions->extensions[i-oldSize];
 	rv = crmf_copy_secitem(poolp, &(newExt->id), &(currExt->id));
 	if (rv != SECSuccess) {
 	    goto loser2;
 	}
 	rv = crmf_copy_secitem(poolp, &(newExt->critical),
 			       &(currExt->critical));
 	if (rv != SECSuccess) {
 	    goto loser2;
 	}
 	rv = crmf_copy_secitem(poolp, &(newExt->value), &(currExt->value));
 	if (rv != SECSuccess) {
 	    goto loser2;
 	}
 	extArray[i] = newExt;
     }
     extArray[newSize] = NULL;
     PORT_ArenaUnmark(poolp, mark);
     return SECSuccess;
  loser2:
     crmf_zeroize_new_extensions (&(inTemplate->extensions[oldSize]),
 				 extensions->numExtensions);
     inTemplate->numExtensions = oldSize;
  loser:
     PORT_ArenaRelease(poolp, mark);
     return SECFailure;
 }
 SECStatus
 CRMF_CertRequestSetTemplateField(CRMFCertRequest       *inCertReq,
 				 CRMFCertTemplateField  inTemplateField,
 				 void                  *data)
 {
     CRMFCertTemplate *certTemplate;
     PLArenaPool      *poolp;
     SECStatus         rv = SECFailure;
     void             *mark;
     if (inCertReq == NULL) {
         return SECFailure;
     }
     certTemplate = &(inCertReq->certTemplate);
     poolp = inCertReq->poolp;
     mark = PORT_ArenaMark(poolp);
     switch (inTemplateField) {
     case crmfVersion:
       rv = crmf_template_add_version(poolp,&(certTemplate->version),
 				     *(long*)data);
       break;
     case crmfSerialNumber:
       rv = crmf_template_add_serialnumber(poolp,
 					  &(certTemplate->serialNumber),
 					  *(long*)data);
       break;
     case crmfSigningAlg:
       rv = crmf_template_copy_secalg (poolp, &(certTemplate->signingAlg),
 				      (SECAlgorithmID*)data);
       break;
     case crmfIssuer:
       rv = crmf_template_add_issuer (poolp, &(certTemplate->issuer),
 				     (CERTName*)data);
       break;
     case crmfValidity:
       rv = crmf_template_add_validity (poolp, &(certTemplate->validity),
 				       (CRMFValidityCreationInfo*)data);
       break;
     case crmfSubject:
       rv = crmf_template_add_subject (poolp, &(certTemplate->subject),
 				      (CERTName*)data);
       break;
     case crmfPublicKey:
       rv = crmf_template_add_public_key(poolp, &(certTemplate->publicKey),
 					(CERTSubjectPublicKeyInfo*)data);
       break;
     case crmfIssuerUID:
       rv = crmf_template_add_issuer_uid(poolp, &(certTemplate->issuerUID),
 					(SECItem*)data);
       break;
     case crmfSubjectUID:
       rv = crmf_template_add_subject_uid(poolp, &(certTemplate->subjectUID),
 					 (SECItem*)data);
       break;
     case crmfExtension:
       rv = crmf_template_add_extensions(poolp, certTemplate,
 					(CRMFCertExtCreationInfo*)data);
       break;
     }
     if (rv != SECSuccess) {
         PORT_ArenaRelease(poolp, mark);
     } else {
         PORT_ArenaUnmark(poolp, mark);
     }
     return rv;
 }
 SECStatus
 CRMF_CertReqMsgSetCertRequest (CRMFCertReqMsg  *inCertReqMsg,
 			       CRMFCertRequest *inCertReq)
 {
     PORT_Assert (inCertReqMsg != NULL && inCertReq != NULL);
     if (inCertReqMsg == NULL || inCertReq == NULL) {
         return SECFailure;
     }
     inCertReqMsg->certReq = crmf_copy_cert_request(inCertReqMsg->poolp,
 						   inCertReq);
     return (inCertReqMsg->certReq == NULL) ? SECFailure : SECSuccess;
 }
 CRMFCertReqMsg*
 CRMF_CreateCertReqMsg(void)
 {
     PLArenaPool    *poolp;
     CRMFCertReqMsg *reqMsg;
     poolp = PORT_NewArena(CRMF_DEFAULT_ARENA_SIZE);
     if (poolp == NULL) {
         goto loser;
     }
     reqMsg = PORT_ArenaZNew(poolp, CRMFCertReqMsg);
     if (reqMsg == NULL) {
         goto loser;
     }
     reqMsg->poolp = poolp;
     return reqMsg;
  loser:
     if (poolp) {
         PORT_FreeArena(poolp, PR_FALSE);
     }
     return NULL;
 }
 SECStatus
 CRMF_DestroyCertReqMsg(CRMFCertReqMsg *inCertReqMsg)
 {
     PORT_Assert(inCertReqMsg != NULL && inCertReqMsg->poolp != NULL);
     if (!inCertReqMsg->isDecoded) {
         if (inCertReqMsg->certReq->certTemplate.extensions != NULL) {
 	    PORT_Free(inCertReqMsg->certReq->certTemplate.extensions);
 	}
 	if (inCertReqMsg->certReq->controls != NULL) {
 	    PORT_Free(inCertReqMsg->certReq->controls);
 	}
     }
     PORT_FreeArena(inCertReqMsg->poolp, PR_TRUE);
     return SECSuccess;
 }
 CRMFCertExtension*
 crmf_create_cert_extension(PLArenaPool *poolp,
 			   SECOidTag    id,
 			   PRBool       isCritical,
 			   SECItem     *data)
 {
     CRMFCertExtension *newExt;
     SECOidData        *oidData;
     SECStatus          rv;
     newExt = (poolp == NULL) ? PORT_ZNew(CRMFCertExtension) :
                                PORT_ArenaZNew(poolp, CRMFCertExtension);
     if (newExt == NULL) {
         goto loser;
     }
     oidData = SECOID_FindOIDByTag(id);
     if (oidData == NULL ||
 	oidData->supportedExtension != SUPPORTED_CERT_EXTENSION) {
        goto loser;
     }
     rv = SECITEM_CopyItem(poolp, &(newExt->id), &(oidData->oid));
     if (rv != SECSuccess) {
         goto loser;
     }
     rv = SECITEM_CopyItem(poolp, &(newExt->value), data);
     if (rv != SECSuccess) {
         goto loser;
     }
     if (isCritical) {
         newExt->critical.data = (poolp == NULL) ?
 	                                PORT_New(unsigned char) :
 	                                PORT_ArenaNew(poolp, unsigned char);
 	if (newExt->critical.data == NULL) {
 	    goto loser;
 	}
 	newExt->critical.data[0] = hexTrue;
 	newExt->critical.len = 1;
     }
     return newExt;
  loser:
     if (newExt != NULL && poolp == NULL) {
         CRMF_DestroyCertExtension(newExt);
     }
     return NULL;
 }
 CRMFCertExtension *
 CRMF_CreateCertExtension(SECOidTag id,
 			 PRBool    isCritical,
 			 SECItem  *data)
 {
     return crmf_create_cert_extension(NULL, id, isCritical, data);
 }
 static SECStatus
 crmf_destroy_cert_extension(CRMFCertExtension *inExtension, PRBool freeit)
 {
     if (inExtension != NULL) {
         SECITEM_FreeItem (&(inExtension->id), PR_FALSE);
 	SECITEM_FreeItem (&(inExtension->value), PR_FALSE);
 	SECITEM_FreeItem (&(inExtension->critical), PR_FALSE);
 	if (freeit) {
 	    PORT_Free(inExtension);
 	}
     }
     return SECSuccess;
 }
 SECStatus
 CRMF_DestroyCertExtension(CRMFCertExtension *inExtension)
 {
     return crmf_destroy_cert_extension(inExtension, PR_TRUE);
 }
 SECStatus
 CRMF_DestroyCertReqMessages(CRMFCertReqMessages *inCertReqMsgs)
 {
     PORT_Assert (inCertReqMsgs != NULL);
     if (inCertReqMsgs != NULL) {
         PORT_FreeArena(inCertReqMsgs->poolp, PR_TRUE);
     }
     return SECSuccess;
 }
 static PRBool
 crmf_item_has_data(SECItem *item)
 {
     if (item != NULL && item->data != NULL) {
         return PR_TRUE;
     }
     return PR_FALSE;
 }
 PRBool
 CRMF_CertRequestIsFieldPresent(CRMFCertRequest       *inCertReq,
 			       CRMFCertTemplateField  inTemplateField)
 {
     PRBool             retVal;
     CRMFCertTemplate *certTemplate;
     PORT_Assert(inCertReq != NULL);
     if (inCertReq == NULL) {
         /* This is probably some kind of error, but this is
 	 * the safest return value for this function.
 	 */
         return PR_FALSE;
     }
     certTemplate = &inCertReq->certTemplate;
     switch (inTemplateField) {
     case crmfVersion:
       retVal = crmf_item_has_data(&certTemplate->version);
       break;
     case crmfSerialNumber:
       retVal = crmf_item_has_data(&certTemplate->serialNumber);
       break;
     case crmfSigningAlg:
       retVal = IS_NOT_NULL(certTemplate->signingAlg);
       break;
     case crmfIssuer:
       retVal = IS_NOT_NULL(certTemplate->issuer);
       break;
     case crmfValidity:
       retVal = IS_NOT_NULL(certTemplate->validity);
       break;
     case crmfSubject:
       retVal = IS_NOT_NULL(certTemplate->subject);
       break;
     case crmfPublicKey:
       retVal = IS_NOT_NULL(certTemplate->publicKey);
       break;
     case crmfIssuerUID:
       retVal = crmf_item_has_data(&certTemplate->issuerUID);
       break;
     case crmfSubjectUID:
       retVal = crmf_item_has_data(&certTemplate->subjectUID);
       break;
     case crmfExtension:
       retVal = IS_NOT_NULL(certTemplate->extensions);
       break;
     default:
       retVal = PR_FALSE;
     }
     return retVal;
 }

The Tor Browser / annotate

security/nss/lib/crmf/crmfreq.c@b8a032363ba2 (annotated)

security/nss/lib/crmf/crmfreq.c