The Tor Browser: security/nss/lib/softoken/legacydb/lgattr.c@7e26c7da4463 (annotated)

security/nss/lib/softoken/legacydb/lgattr.c@7e26c7da4463 (annotated)

security/nss/lib/softoken/legacydb/lgattr.c

Wed, 31 Dec 2014 06:55:50 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:55:50 +0100
changeset 2: 7e26c7da4463
permissions: -rw-r--r--

Added tag UPSTREAM_283F7C6 for changeset ca08bd8f51b2

 /* 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/. */
 /*
  * Internal PKCS #11 functions. Should only be called by pkcs11.c
  */
 #include "pkcs11.h"
 #include "lgdb.h"
 #include "pcertt.h"
 #include "lowkeyi.h"
 #include "pcert.h"
 #include "blapi.h"
 #include "secerr.h"
 #include "secasn1.h"
 /*
  * Cache the object we are working on during Set's and Get's
  */
 typedef struct LGObjectCacheStr {
     CK_OBJECT_CLASS  objclass;
     CK_OBJECT_HANDLE handle;
     SDB              *sdb;
     void             *objectInfo;
     LGFreeFunc       infoFree;
     SECItem          dbKey;
 } LGObjectCache;
 static const CK_OBJECT_HANDLE lg_classArray[] = {
 , CKO_PRIVATE_KEY, CKO_PUBLIC_KEY, CKO_SECRET_KEY,
     CKO_NSS_TRUST, CKO_NSS_CRL, CKO_NSS_SMIME,
      CKO_CERTIFICATE };
 #define handleToClass(handle) \
     lg_classArray[((handle & LG_TOKEN_TYPE_MASK))>>LG_TOKEN_TYPE_SHIFT]
 static void lg_DestroyObjectCache(LGObjectCache *obj);
 static LGObjectCache *
 lg_NewObjectCache(SDB *sdb, const SECItem *dbKey, CK_OBJECT_HANDLE handle)
 {
     LGObjectCache *obj = NULL;
     SECStatus rv;
     obj = PORT_New(LGObjectCache);
     if (obj == NULL) {
 	return NULL;
     }
     obj->objclass = handleToClass(handle);
     obj->handle = handle;
     obj->sdb = sdb;
     obj->objectInfo = NULL;
     obj->infoFree = NULL;
     obj->dbKey.data = NULL;
     obj->dbKey.len = 0;
     lg_DBLock(sdb);
     if (dbKey == NULL) {
 	dbKey = lg_lookupTokenKeyByHandle(sdb,handle);
     }
     if (dbKey == NULL) {
 	lg_DBUnlock(sdb);
 	goto loser;
     }
     rv = SECITEM_CopyItem(NULL,&obj->dbKey,dbKey);
     lg_DBUnlock(sdb);
     if (rv != SECSuccess) {
 	goto loser;
     }
     return obj;
 loser:
     if (obj) {
 	(void) lg_DestroyObjectCache(obj);
     }
     return NULL;
 }
 /*
  * free all the data associated with an object. Object reference count must
  * be 'zero'.
  */
 static void
 lg_DestroyObjectCache(LGObjectCache *obj)
 {
     if (obj->dbKey.data) {
 	PORT_Free(obj->dbKey.data);
 	obj->dbKey.data = NULL;
     }
     if (obj->objectInfo) {
 	(*obj->infoFree)(obj->objectInfo);
 	obj->objectInfo = NULL;
 	obj->infoFree = NULL;
     }
     PORT_Free(obj);
 }
 /*
  * ******************** Attribute Utilities *******************************
  */
 static CK_RV
 lg_ULongAttribute(CK_ATTRIBUTE *attr, CK_ATTRIBUTE_TYPE type, CK_ULONG value)
 {
     unsigned char *data;
     int i;
     if (attr->pValue == NULL) {
 	attr->ulValueLen = 4;
 	return CKR_OK;
     }
     if (attr->ulValueLen < 4) {
 	attr->ulValueLen = (CK_ULONG) -1;
 	return CKR_BUFFER_TOO_SMALL;
     }
     data = (unsigned char *)attr->pValue;
     for (i=0; i < 4; i++) {
 	data[i] = (value >> ((3-i)*8)) & 0xff;
     }
     attr->ulValueLen = 4;
     return CKR_OK;
 }
 static CK_RV
 lg_CopyAttribute(CK_ATTRIBUTE *attr, CK_ATTRIBUTE_TYPE type,
 				CK_VOID_PTR value, CK_ULONG len)
 {
     if (attr->pValue == NULL) {
 	attr->ulValueLen = len;
 	return CKR_OK;
     }
     if (attr->ulValueLen < len) {
 	attr->ulValueLen = (CK_ULONG) -1;
 	return CKR_BUFFER_TOO_SMALL;
     }
     PORT_Memcpy(attr->pValue,value,len);
     attr->ulValueLen = len;
     return CKR_OK;
 }
 static CK_RV
 lg_CopyAttributeSigned(CK_ATTRIBUTE *attribute, CK_ATTRIBUTE_TYPE type,
 				void  *value, CK_ULONG len)
 {
     unsigned char * dval = (unsigned char *)value;
     if (*dval == 0) {
 	dval++;
 	len--;
     }
     return lg_CopyAttribute(attribute,type,dval,len);
 }
 static CK_RV
 lg_CopyPrivAttribute(CK_ATTRIBUTE *attribute, CK_ATTRIBUTE_TYPE type,
 				void  *value, CK_ULONG len, SDB *sdbpw)
 {
     SECItem plainText, *cipherText = NULL;
     CK_RV crv = CKR_USER_NOT_LOGGED_IN;
     SECStatus rv;
     plainText.data = value;
     plainText.len = len;
     rv = lg_util_encrypt(NULL, sdbpw, &plainText, &cipherText);
     if (rv != SECSuccess) {
 	goto loser;
     }
     crv = lg_CopyAttribute(attribute,type,cipherText->data,cipherText->len);
 loser:
     if (cipherText) {
 	SECITEM_FreeItem(cipherText,PR_TRUE);
     }
     return crv;
 }
 static CK_RV
 lg_CopyPrivAttrSigned(CK_ATTRIBUTE *attribute, CK_ATTRIBUTE_TYPE type,
 				void  *value, CK_ULONG len, SDB *sdbpw)
 {
     unsigned char * dval = (unsigned char *)value;
     if (*dval == 0) {
 	dval++;
 	len--;
     }
     return lg_CopyPrivAttribute(attribute,type,dval,len,sdbpw);
 }
 static CK_RV
 lg_invalidAttribute(CK_ATTRIBUTE *attr)
 {
     attr->ulValueLen = (CK_ULONG) -1;
     return CKR_ATTRIBUTE_TYPE_INVALID;
 }
 #define LG_DEF_ATTRIBUTE(value,len) \
    { 0, value, len }
 #define LG_CLONE_ATTR(attribute, type, staticAttr) \
     lg_CopyAttribute(attribute, type, staticAttr.pValue, staticAttr.ulValueLen)
 CK_BBOOL lg_staticTrueValue = CK_TRUE;
 CK_BBOOL lg_staticFalseValue = CK_FALSE;
 static const CK_ATTRIBUTE lg_StaticTrueAttr =
   LG_DEF_ATTRIBUTE(&lg_staticTrueValue,sizeof(lg_staticTrueValue));
 static const CK_ATTRIBUTE lg_StaticFalseAttr =
   LG_DEF_ATTRIBUTE(&lg_staticFalseValue,sizeof(lg_staticFalseValue));
 static const CK_ATTRIBUTE lg_StaticNullAttr = LG_DEF_ATTRIBUTE(NULL,0);
 char lg_StaticOneValue = 1;
 static const CK_ATTRIBUTE lg_StaticOneAttr =
   LG_DEF_ATTRIBUTE(&lg_StaticOneValue,sizeof(lg_StaticOneValue));
 /*
  * helper functions which get the database and call the underlying
  * low level database function.
  */
 static char *
 lg_FindKeyNicknameByPublicKey(SDB *sdb, SECItem *dbKey)
 {
     NSSLOWKEYDBHandle *keyHandle;
     char * label;
     keyHandle = lg_getKeyDB(sdb);
     if (!keyHandle) {
 	return NULL;
     }
     label = nsslowkey_FindKeyNicknameByPublicKey(keyHandle, dbKey,
 						 sdb);
     return label;
 }
 NSSLOWKEYPrivateKey *
 lg_FindKeyByPublicKey(SDB *sdb, SECItem *dbKey)
 {
     NSSLOWKEYPrivateKey *privKey;
     NSSLOWKEYDBHandle   *keyHandle;
     keyHandle = lg_getKeyDB(sdb);
     if (keyHandle == NULL) {
 	return NULL;
     }
     privKey = nsslowkey_FindKeyByPublicKey(keyHandle, dbKey, sdb);
     if (privKey == NULL) {
 	return NULL;
     }
     return privKey;
 }
 static certDBEntrySMime *
 lg_getSMime(LGObjectCache *obj)
 {
     certDBEntrySMime *entry;
     NSSLOWCERTCertDBHandle *certHandle;
     if (obj->objclass != CKO_NSS_SMIME) {
 	return NULL;
     }
     if (obj->objectInfo) {
 	return (certDBEntrySMime *)obj->objectInfo;
     }
     certHandle = lg_getCertDB(obj->sdb);
     if (!certHandle) {
 	return NULL;
     }
     entry = nsslowcert_ReadDBSMimeEntry(certHandle, (char *)obj->dbKey.data);
     obj->objectInfo = (void *)entry;
     obj->infoFree = (LGFreeFunc) nsslowcert_DestroyDBEntry;
     return entry;
 }
 static certDBEntryRevocation *
 lg_getCrl(LGObjectCache *obj)
 {
     certDBEntryRevocation *crl;
     PRBool isKrl;
     NSSLOWCERTCertDBHandle *certHandle;
     if (obj->objclass != CKO_NSS_CRL) {
 	return NULL;
     }
     if (obj->objectInfo) {
 	return (certDBEntryRevocation *)obj->objectInfo;
     }
     isKrl = (PRBool) (obj->handle == LG_TOKEN_KRL_HANDLE);
     certHandle = lg_getCertDB(obj->sdb);
     if (!certHandle) {
 	return NULL;
     }
     crl = nsslowcert_FindCrlByKey(certHandle, &obj->dbKey, isKrl);
     obj->objectInfo = (void *)crl;
     obj->infoFree = (LGFreeFunc) nsslowcert_DestroyDBEntry;
     return crl;
 }
 static NSSLOWCERTCertificate *
 lg_getCert(LGObjectCache *obj, NSSLOWCERTCertDBHandle *certHandle)
 {
     NSSLOWCERTCertificate *cert;
     CK_OBJECT_CLASS objClass = obj->objclass;
     if ((objClass != CKO_CERTIFICATE) && (objClass != CKO_NSS_TRUST)) {
 	return NULL;
     }
     if (objClass == CKO_CERTIFICATE && obj->objectInfo) {
 	return (NSSLOWCERTCertificate *)obj->objectInfo;
     }
     cert = nsslowcert_FindCertByKey(certHandle, &obj->dbKey);
     if (objClass == CKO_CERTIFICATE) {
 	obj->objectInfo = (void *)cert;
 	obj->infoFree = (LGFreeFunc) nsslowcert_DestroyCertificate ;
     }
     return cert;
 }
 static NSSLOWCERTTrust *
 lg_getTrust(LGObjectCache *obj, NSSLOWCERTCertDBHandle *certHandle)
 {
     NSSLOWCERTTrust *trust;
     if (obj->objclass != CKO_NSS_TRUST) {
 	return NULL;
     }
     if (obj->objectInfo) {
 	return (NSSLOWCERTTrust *)obj->objectInfo;
     }
     trust = nsslowcert_FindTrustByKey(certHandle, &obj->dbKey);
     obj->objectInfo = (void *)trust;
     obj->infoFree = (LGFreeFunc) nsslowcert_DestroyTrust ;
     return trust;
 }
 static NSSLOWKEYPublicKey *
 lg_GetPublicKey(LGObjectCache *obj)
 {
     NSSLOWKEYPublicKey *pubKey;
     NSSLOWKEYPrivateKey *privKey;
     if (obj->objclass != CKO_PUBLIC_KEY) {
 	return NULL;
     }
     if (obj->objectInfo) {
 	return (NSSLOWKEYPublicKey *)obj->objectInfo;
     }
     privKey = lg_FindKeyByPublicKey(obj->sdb, &obj->dbKey);
     if (privKey == NULL) {
 	return NULL;
     }
     pubKey = lg_nsslowkey_ConvertToPublicKey(privKey);
     lg_nsslowkey_DestroyPrivateKey(privKey);
     obj->objectInfo = (void *) pubKey;
     obj->infoFree = (LGFreeFunc) lg_nsslowkey_DestroyPublicKey ;
     return pubKey;
 }
 /*
  * we need two versions of lg_GetPrivateKey. One version that takes the
  * DB handle so we can pass the handle we have already acquired in,
  *  rather than going through the 'getKeyDB' code again,
  *  which may fail the second time and another which just aquires
  *  the key handle from the sdb (where we don't already have a key handle.
  * This version does the former.
  */
 static NSSLOWKEYPrivateKey *
 lg_GetPrivateKeyWithDB(LGObjectCache *obj, NSSLOWKEYDBHandle *keyHandle)
 {
     NSSLOWKEYPrivateKey *privKey;
     if ((obj->objclass != CKO_PRIVATE_KEY) &&
 			(obj->objclass != CKO_SECRET_KEY)) {
 	return NULL;
     }
     if (obj->objectInfo) {
 	return (NSSLOWKEYPrivateKey *)obj->objectInfo;
     }
     privKey = nsslowkey_FindKeyByPublicKey(keyHandle, &obj->dbKey, obj->sdb);
     if (privKey == NULL) {
 	return NULL;
     }
     obj->objectInfo = (void *) privKey;
     obj->infoFree = (LGFreeFunc) lg_nsslowkey_DestroyPrivateKey ;
     return privKey;
 }
 /* this version does the latter */
 static NSSLOWKEYPrivateKey *
 lg_GetPrivateKey(LGObjectCache *obj)
 {
     NSSLOWKEYDBHandle *keyHandle;
     NSSLOWKEYPrivateKey *privKey;
     keyHandle = lg_getKeyDB(obj->sdb);
     if (!keyHandle) {
 	return NULL;
     }
     privKey = lg_GetPrivateKeyWithDB(obj, keyHandle);
     return privKey;
 }
 /* lg_GetPubItem returns data associated with the public key.
  * one only needs to free the public key. This comment is here
  * because this sematic would be non-obvious otherwise. All callers
  * should include this comment.
  */
 static SECItem *
 lg_GetPubItem(NSSLOWKEYPublicKey *pubKey) {
     SECItem *pubItem = NULL;
     /* get value to compare from the cert's public key */
     switch ( pubKey->keyType ) {
     case NSSLOWKEYRSAKey:
 	    pubItem = &pubKey->u.rsa.modulus;
 	    break;
     case NSSLOWKEYDSAKey:
 	    pubItem = &pubKey->u.dsa.publicValue;
 	    break;
     case NSSLOWKEYDHKey:
 	    pubItem = &pubKey->u.dh.publicValue;
 	    break;
 #ifndef NSS_DISABLE_ECC
     case NSSLOWKEYECKey:
 	    pubItem = &pubKey->u.ec.publicValue;
 	    break;
 #endif /* NSS_DISABLE_ECC */
     default:
 	    break;
     }
     return pubItem;
 }
 static const SEC_ASN1Template lg_SerialTemplate[] = {
     { SEC_ASN1_INTEGER, offsetof(NSSLOWCERTCertificate,serialNumber) },
     { 0 }
 };
 static CK_RV
 lg_FindRSAPublicKeyAttribute(NSSLOWKEYPublicKey *key, CK_ATTRIBUTE_TYPE type,
 				CK_ATTRIBUTE *attribute)
 {
     unsigned char hash[SHA1_LENGTH];
     CK_KEY_TYPE keyType = CKK_RSA;
     switch (type) {
     case CKA_KEY_TYPE:
 	return lg_ULongAttribute(attribute, type, keyType);
     case CKA_ID:
 	SHA1_HashBuf(hash,key->u.rsa.modulus.data,key->u.rsa.modulus.len);
 	return lg_CopyAttribute(attribute,type,hash,SHA1_LENGTH);
     case CKA_DERIVE:
 	return LG_CLONE_ATTR(attribute,type,lg_StaticFalseAttr);
     case CKA_ENCRYPT:
     case CKA_VERIFY:
     case CKA_VERIFY_RECOVER:
     case CKA_WRAP:
 	return LG_CLONE_ATTR(attribute,type,lg_StaticTrueAttr);
     case CKA_MODULUS:
 	return lg_CopyAttributeSigned(attribute,type,key->u.rsa.modulus.data,
 					key->u.rsa.modulus.len);
     case CKA_PUBLIC_EXPONENT:
 	return lg_CopyAttributeSigned(attribute, type,
 				key->u.rsa.publicExponent.data,
 				key->u.rsa.publicExponent.len);
     default:
 	break;
     }
     return lg_invalidAttribute(attribute);
 }
 static CK_RV
 lg_FindDSAPublicKeyAttribute(NSSLOWKEYPublicKey *key, CK_ATTRIBUTE_TYPE type,
 				CK_ATTRIBUTE *attribute)
 {
     unsigned char hash[SHA1_LENGTH];
     CK_KEY_TYPE keyType = CKK_DSA;
     switch (type) {
     case CKA_KEY_TYPE:
 	return lg_ULongAttribute(attribute, type, keyType);
     case CKA_ID:
 	SHA1_HashBuf(hash,key->u.dsa.publicValue.data,
 						key->u.dsa.publicValue.len);
 	return lg_CopyAttribute(attribute,type,hash,SHA1_LENGTH);
     case CKA_DERIVE:
     case CKA_ENCRYPT:
     case CKA_VERIFY_RECOVER:
     case CKA_WRAP:
 	return LG_CLONE_ATTR(attribute,type,lg_StaticFalseAttr);
     case CKA_VERIFY:
 	return LG_CLONE_ATTR(attribute,type,lg_StaticTrueAttr);
     case CKA_VALUE:
 	return lg_CopyAttributeSigned(attribute,type,
 					key->u.dsa.publicValue.data,
 					key->u.dsa.publicValue.len);
     case CKA_PRIME:
 	return lg_CopyAttributeSigned(attribute,type,
 					key->u.dsa.params.prime.data,
 					key->u.dsa.params.prime.len);
     case CKA_SUBPRIME:
 	return lg_CopyAttributeSigned(attribute,type,
 				key->u.dsa.params.subPrime.data,
 				key->u.dsa.params.subPrime.len);
     case CKA_BASE:
 	return lg_CopyAttributeSigned(attribute,type,
 					key->u.dsa.params.base.data,
 					key->u.dsa.params.base.len);
     default:
 	break;
     }
     return lg_invalidAttribute(attribute);
 }
 static CK_RV
 lg_FindDHPublicKeyAttribute(NSSLOWKEYPublicKey *key, CK_ATTRIBUTE_TYPE type,
 				CK_ATTRIBUTE *attribute)
 {
     unsigned char hash[SHA1_LENGTH];
     CK_KEY_TYPE keyType = CKK_DH;
     switch (type) {
     case CKA_KEY_TYPE:
 	return lg_ULongAttribute(attribute, type, keyType);
     case CKA_ID:
 	SHA1_HashBuf(hash,key->u.dh.publicValue.data,key->u.dh.publicValue.len);
 	return lg_CopyAttribute(attribute,type,hash,SHA1_LENGTH);
     case CKA_DERIVE:
 	return LG_CLONE_ATTR(attribute,type,lg_StaticTrueAttr);
     case CKA_ENCRYPT:
     case CKA_VERIFY:
     case CKA_VERIFY_RECOVER:
     case CKA_WRAP:
 	return LG_CLONE_ATTR(attribute,type,lg_StaticFalseAttr);
     case CKA_VALUE:
 	return lg_CopyAttributeSigned(attribute,type,
 					key->u.dh.publicValue.data,
 					key->u.dh.publicValue.len);
     case CKA_PRIME:
 	return lg_CopyAttributeSigned(attribute,type,key->u.dh.prime.data,
 					key->u.dh.prime.len);
     case CKA_BASE:
 	return lg_CopyAttributeSigned(attribute,type,key->u.dh.base.data,
 					key->u.dh.base.len);
     default:
 	break;
     }
     return lg_invalidAttribute(attribute);
 }
 #ifndef NSS_DISABLE_ECC
 static CK_RV
 lg_FindECPublicKeyAttribute(NSSLOWKEYPublicKey *key, CK_ATTRIBUTE_TYPE type,
 				CK_ATTRIBUTE *attribute)
 {
     unsigned char hash[SHA1_LENGTH];
     CK_KEY_TYPE keyType = CKK_EC;
     switch (type) {
     case CKA_KEY_TYPE:
 	return lg_ULongAttribute(attribute, type, keyType);
     case CKA_ID:
 	SHA1_HashBuf(hash, key->u.ec.publicValue.data,
 		     key->u.ec.publicValue.len);
 	return lg_CopyAttribute(attribute,type,hash,SHA1_LENGTH);
     case CKA_DERIVE:
     case CKA_VERIFY:
 	return LG_CLONE_ATTR(attribute,type,lg_StaticTrueAttr);
     case CKA_ENCRYPT:
     case CKA_VERIFY_RECOVER:
     case CKA_WRAP:
 	return LG_CLONE_ATTR(attribute,type,lg_StaticFalseAttr);
     case CKA_EC_PARAMS:
 	return lg_CopyAttributeSigned(attribute,type,
 					key->u.ec.ecParams.DEREncoding.data,
 					key->u.ec.ecParams.DEREncoding.len);
     case CKA_EC_POINT:
 	if (getenv("NSS_USE_DECODED_CKA_EC_POINT")) {
 	    return lg_CopyAttributeSigned(attribute, type,
 					key->u.ec.publicValue.data,
 					key->u.ec.publicValue.len);
 	} else {
 	    SECItem *pubValue = SEC_ASN1EncodeItem(NULL, NULL,
 					&(key->u.ec.publicValue),
 					SEC_ASN1_GET(SEC_OctetStringTemplate));
 	    CK_RV crv;
 	    if (!pubValue) {
 		return CKR_HOST_MEMORY;
 	    }
 	    crv = lg_CopyAttributeSigned(attribute, type,
 					pubValue->data,
 					pubValue->len);
 	    SECITEM_FreeItem(pubValue, PR_TRUE);
 	    return crv;
 	}
     default:
 	break;
     }
     return lg_invalidAttribute(attribute);
 }
 #endif /* NSS_DISABLE_ECC */
 static CK_RV
 lg_FindPublicKeyAttribute(LGObjectCache *obj, CK_ATTRIBUTE_TYPE type,
 				CK_ATTRIBUTE *attribute)
 {
     NSSLOWKEYPublicKey   *key;
     CK_RV crv;
     char *label;
     switch (type) {
     case CKA_PRIVATE:
     case CKA_SENSITIVE:
     case CKA_ALWAYS_SENSITIVE:
     case CKA_NEVER_EXTRACTABLE:
 	return LG_CLONE_ATTR(attribute,type,lg_StaticFalseAttr);
     case CKA_MODIFIABLE:
     case CKA_EXTRACTABLE:
 	return LG_CLONE_ATTR(attribute,type,lg_StaticTrueAttr);
     case CKA_SUBJECT:
 	   return LG_CLONE_ATTR(attribute,type,lg_StaticNullAttr);
     case CKA_START_DATE:
     case CKA_END_DATE:
 	   return LG_CLONE_ATTR(attribute,type,lg_StaticNullAttr);
     case CKA_LABEL:
         label = lg_FindKeyNicknameByPublicKey(obj->sdb, &obj->dbKey);
 	if (label == NULL) {
 	   return LG_CLONE_ATTR(attribute,type,lg_StaticNullAttr);
 	}
 	crv = lg_CopyAttribute(attribute,type,label,PORT_Strlen(label));
 	PORT_Free(label);
 	return crv;
     default:
 	break;
     }
     key = lg_GetPublicKey(obj);
     if (key == NULL) {
 	if (type == CKA_ID) {
 	   return LG_CLONE_ATTR(attribute,type,lg_StaticNullAttr);
 	}
 	return CKR_OBJECT_HANDLE_INVALID;
     }
     switch (key->keyType) {
     case NSSLOWKEYRSAKey:
 	return lg_FindRSAPublicKeyAttribute(key,type,attribute);
     case NSSLOWKEYDSAKey:
 	return lg_FindDSAPublicKeyAttribute(key,type,attribute);
     case NSSLOWKEYDHKey:
 	return lg_FindDHPublicKeyAttribute(key,type,attribute);
 #ifndef NSS_DISABLE_ECC
     case NSSLOWKEYECKey:
 	return lg_FindECPublicKeyAttribute(key,type,attribute);
 #endif /* NSS_DISABLE_ECC */
     default:
 	break;
     }
     return lg_invalidAttribute(attribute);
 }
 static CK_RV
 lg_FindSecretKeyAttribute(LGObjectCache *obj, CK_ATTRIBUTE_TYPE type,
 				CK_ATTRIBUTE *attribute)
 {
     NSSLOWKEYPrivateKey  *key;
     char *label;
     unsigned char *keyString;
     CK_RV crv;
     int keyTypeLen;
     CK_ULONG keyLen;
     CK_KEY_TYPE keyType;
     PRUint32 keyTypeStorage;
     switch (type) {
     case CKA_PRIVATE:
     case CKA_SENSITIVE:
     case CKA_ALWAYS_SENSITIVE:
     case CKA_EXTRACTABLE:
     case CKA_DERIVE:
     case CKA_ENCRYPT:
     case CKA_DECRYPT:
     case CKA_SIGN:
     case CKA_VERIFY:
     case CKA_WRAP:
     case CKA_UNWRAP:
     case CKA_MODIFIABLE:
     case CKA_LOCAL:
 	return LG_CLONE_ATTR(attribute,type,lg_StaticTrueAttr);
     case CKA_NEVER_EXTRACTABLE:
 	return LG_CLONE_ATTR(attribute,type,lg_StaticFalseAttr);
     case CKA_START_DATE:
     case CKA_END_DATE:
 	   return LG_CLONE_ATTR(attribute,type,lg_StaticNullAttr);
     case CKA_LABEL:
         label = lg_FindKeyNicknameByPublicKey(obj->sdb, &obj->dbKey);
 	if (label == NULL) {
 	   return LG_CLONE_ATTR(attribute,type,lg_StaticNullAttr);
 	}
 	crv = lg_CopyAttribute(attribute,type,label,PORT_Strlen(label));
 	PORT_Free(label);
 	return crv;
     case CKA_ID:
 	return lg_CopyAttribute(attribute,type,obj->dbKey.data,
 						obj->dbKey.len);
     case CKA_KEY_TYPE:
     case CKA_VALUE_LEN:
     case CKA_VALUE:
 	break;
     default:
 	return lg_invalidAttribute(attribute);
     }
     key = lg_GetPrivateKey(obj);
     if (key == NULL) {
 	return CKR_OBJECT_HANDLE_INVALID;
     }
     switch (type) {
     case CKA_KEY_TYPE:
 	/* handle legacy databases. In legacy databases key_type was stored
 	 * in host order, with any leading zeros stripped off. Only key types
 	 * under 0x1f (AES) were stored. We assume that any values which are
 	 * either 1 byte long (big endian), or have byte[0] between 0 and
 	 * 0x7f and bytes[1]-bytes[3] equal to '0' (little endian). All other
 	 * values are assumed to be from the new database, which is always 4
 	 * bytes in network order */
 	keyType=0;
 	keyString = key->u.rsa.coefficient.data;
 	keyTypeLen = key->u.rsa.coefficient.len;
 	/*
  	 * Because of various endian and word lengths The database may have
 	 * stored the keyType value in one of the following formats:
 	 *   (kt) <= 0x1f
 	 *                                   length data
 	 * Big Endian,     pre-3.9, all lengths: 1  (kt)
 	 * Little Endian,  pre-3.9, 32 bits:     4  (kt) 0  0  0
 	 * Little Endian,  pre-3.9, 64 bits:     8  (kt) 0  0  0   0  0  0  0
 	 * All platforms,      3.9, 32 bits:     4    0  0  0 (kt)
 	 * Big Endian,         3.9, 64 bits:     8    0  0  0 (kt) 0  0  0  0
 	 * Little  Endian,     3.9, 64 bits:     8    0  0  0  0   0  0  0 (kt)
 	 * All platforms, >= 3.9.1, all lengths: 4   (a) k1 k2 k3
 	 * where (a) is 0 or >= 0x80. currently (a) can only be 0.
 	 */
 	/*
  	 * this key was written on a 64 bit platform with a using NSS 3.9
 	 * or earlier. Reduce the 64 bit possibilities above. When we are
 	 * through, we will only have:
 	 *
 	 * Big Endian,     pre-3.9, all lengths: 1  (kt)
 	 * Little Endian,  pre-3.9, all lengths: 4  (kt) 0  0  0
 	 * All platforms,      3.9, all lengths: 4    0  0  0 (kt)
 	 * All platforms, => 3.9.1, all lengths: 4   (a) k1 k2 k3
 	 */
 	if (keyTypeLen == 8) {
 	    keyTypeStorage = *(PRUint32 *) keyString;
 	    if (keyTypeStorage == 0) {
 		keyString += sizeof(PRUint32);
 	    }
 	    keyTypeLen = 4;
 	}
 	/*
 	 * Now Handle:
 	 *
 	 * All platforms,      3.9, all lengths: 4    0  0  0 (kt)
 	 * All platforms, => 3.9.1, all lengths: 4   (a) k1 k2 k3
 	 *
 	 * NOTE: if  kt == 0 or ak1k2k3 == 0, the test fails and
 	 * we handle it as:
 	 *
 	 * Little Endian,  pre-3.9, all lengths: 4  (kt) 0  0  0
 	 */
 	if (keyTypeLen == sizeof(keyTypeStorage) &&
 	     (((keyString[0] & 0x80) == 0x80) ||
 		!((keyString[1] == 0) && (keyString[2] == 0)
 	   				    && (keyString[3] == 0))) ) {
 	    PORT_Memcpy(&keyTypeStorage, keyString, sizeof(keyTypeStorage));
 	    keyType = (CK_KEY_TYPE) PR_ntohl(keyTypeStorage);
 	} else {
 	/*
 	 * Now Handle:
 	 *
 	 * Big Endian,     pre-3.9, all lengths: 1  (kt)
 	 * Little Endian,  pre-3.9, all lengths: 4  (kt) 0  0  0
 	 *  -- KeyType == 0 all other cases ---: 4    0  0  0  0
 	 */
 	    keyType = (CK_KEY_TYPE) keyString[0] ;
         }
 	return lg_ULongAttribute(attribute, type, keyType);
     case CKA_VALUE:
 	return lg_CopyPrivAttribute(attribute,type,key->u.rsa.privateExponent.data,
 				key->u.rsa.privateExponent.len, obj->sdb);
     case CKA_VALUE_LEN:
 	keyLen=key->u.rsa.privateExponent.len;
 	return lg_ULongAttribute(attribute,type, keyLen);
     }
     return lg_invalidAttribute(attribute);
 }
 static CK_RV
 lg_FindRSAPrivateKeyAttribute(NSSLOWKEYPrivateKey *key, CK_ATTRIBUTE_TYPE type,
 				CK_ATTRIBUTE *attribute, SDB *sdbpw)
 {
     unsigned char hash[SHA1_LENGTH];
     CK_KEY_TYPE keyType = CKK_RSA;
     switch (type) {
     case CKA_KEY_TYPE:
 	return lg_ULongAttribute(attribute, type, keyType);
     case CKA_ID:
 	SHA1_HashBuf(hash,key->u.rsa.modulus.data,key->u.rsa.modulus.len);
 	return lg_CopyAttribute(attribute,type,hash,SHA1_LENGTH);
     case CKA_DERIVE:
 	return LG_CLONE_ATTR(attribute,type,lg_StaticFalseAttr);
     case CKA_DECRYPT:
     case CKA_SIGN:
     case CKA_SIGN_RECOVER:
     case CKA_UNWRAP:
 	return LG_CLONE_ATTR(attribute, type,lg_StaticTrueAttr);
     case CKA_MODULUS:
 	return lg_CopyAttributeSigned(attribute,type,key->u.rsa.modulus.data,
 					key->u.rsa.modulus.len);
     case CKA_PUBLIC_EXPONENT:
 	return lg_CopyAttributeSigned(attribute, type,
 				key->u.rsa.publicExponent.data,
 				key->u.rsa.publicExponent.len);
     case CKA_PRIVATE_EXPONENT:
 	return lg_CopyPrivAttrSigned(attribute,type,
 				key->u.rsa.privateExponent.data,
 				key->u.rsa.privateExponent.len, sdbpw);
     case CKA_PRIME_1:
 	return lg_CopyPrivAttrSigned(attribute, type, key->u.rsa.prime1.data,
 				key->u.rsa.prime1.len, sdbpw);
     case CKA_PRIME_2:
 	return lg_CopyPrivAttrSigned(attribute, type, key->u.rsa.prime2.data,
 				key->u.rsa.prime2.len, sdbpw);
     case CKA_EXPONENT_1:
 	return lg_CopyPrivAttrSigned(attribute, type,
 				key->u.rsa.exponent1.data,
 				key->u.rsa.exponent1.len, sdbpw);
     case CKA_EXPONENT_2:
 	return lg_CopyPrivAttrSigned(attribute, type,
 				key->u.rsa.exponent2.data,
 				key->u.rsa.exponent2.len, sdbpw);
     case CKA_COEFFICIENT:
 	return lg_CopyPrivAttrSigned(attribute, type,
 				key->u.rsa.coefficient.data,
 				key->u.rsa.coefficient.len, sdbpw);
     default:
 	break;
     }
     return lg_invalidAttribute(attribute);
 }
 static CK_RV
 lg_FindDSAPrivateKeyAttribute(NSSLOWKEYPrivateKey *key, CK_ATTRIBUTE_TYPE type,
 				CK_ATTRIBUTE *attribute, SDB *sdbpw)
 {
     unsigned char hash[SHA1_LENGTH];
     CK_KEY_TYPE keyType = CKK_DSA;
     switch (type) {
     case CKA_KEY_TYPE:
 	return lg_ULongAttribute(attribute, type, keyType);
     case CKA_ID:
 	SHA1_HashBuf(hash,key->u.dsa.publicValue.data,
 			  key->u.dsa.publicValue.len);
 	return lg_CopyAttribute(attribute,type,hash,SHA1_LENGTH);
     case CKA_DERIVE:
     case CKA_DECRYPT:
     case CKA_SIGN_RECOVER:
     case CKA_UNWRAP:
 	return LG_CLONE_ATTR(attribute,type,lg_StaticFalseAttr);
     case CKA_SIGN:
 	return LG_CLONE_ATTR(attribute,type,lg_StaticTrueAttr);
     case CKA_VALUE:
 	return lg_CopyPrivAttrSigned(attribute, type,
 				key->u.dsa.privateValue.data,
 				key->u.dsa.privateValue.len, sdbpw);
     case CKA_PRIME:
 	return lg_CopyAttributeSigned(attribute, type,
 					key->u.dsa.params.prime.data,
 					key->u.dsa.params.prime.len);
     case CKA_SUBPRIME:
 	return lg_CopyAttributeSigned(attribute, type,
 				key->u.dsa.params.subPrime.data,
 				key->u.dsa.params.subPrime.len);
     case CKA_BASE:
 	return lg_CopyAttributeSigned(attribute, type,
 					key->u.dsa.params.base.data,
 					key->u.dsa.params.base.len);
     case CKA_NETSCAPE_DB:
 	return lg_CopyAttributeSigned(attribute, type,
 					key->u.dsa.publicValue.data,
 					key->u.dsa.publicValue.len);
     default:
 	break;
     }
     return lg_invalidAttribute(attribute);
 }
 static CK_RV
 lg_FindDHPrivateKeyAttribute(NSSLOWKEYPrivateKey *key, CK_ATTRIBUTE_TYPE type,
 				CK_ATTRIBUTE *attribute, SDB *sdbpw)
 {
     unsigned char hash[SHA1_LENGTH];
     CK_KEY_TYPE keyType = CKK_DH;
     switch (type) {
     case CKA_KEY_TYPE:
 	return lg_ULongAttribute(attribute, type, keyType);
     case CKA_ID:
 	SHA1_HashBuf(hash,key->u.dh.publicValue.data,key->u.dh.publicValue.len);
 	return lg_CopyAttribute(attribute,type,hash,SHA1_LENGTH);
     case CKA_DERIVE:
 	return LG_CLONE_ATTR(attribute,type,lg_StaticTrueAttr);
     case CKA_DECRYPT:
     case CKA_SIGN:
     case CKA_SIGN_RECOVER:
     case CKA_UNWRAP:
 	return LG_CLONE_ATTR(attribute,type,lg_StaticFalseAttr);
     case CKA_VALUE:
 	return lg_CopyPrivAttrSigned(attribute, type,
 					key->u.dh.privateValue.data,
 					key->u.dh.privateValue.len, sdbpw);
     case CKA_PRIME:
 	return lg_CopyAttributeSigned(attribute, type, key->u.dh.prime.data,
 					key->u.dh.prime.len);
     case CKA_BASE:
 	return lg_CopyAttributeSigned(attribute, type, key->u.dh.base.data,
 					key->u.dh.base.len);
     case CKA_NETSCAPE_DB:
 	return lg_CopyAttributeSigned(attribute, type,
 					key->u.dh.publicValue.data,
 					key->u.dh.publicValue.len);
     default:
 	break;
     }
     return lg_invalidAttribute(attribute);
 }
 #ifndef NSS_DISABLE_ECC
 static CK_RV
 lg_FindECPrivateKeyAttribute(NSSLOWKEYPrivateKey *key, CK_ATTRIBUTE_TYPE type,
 				CK_ATTRIBUTE *attribute, SDB *sdbpw)
 {
     unsigned char hash[SHA1_LENGTH];
     CK_KEY_TYPE keyType = CKK_EC;
     switch (type) {
     case CKA_KEY_TYPE:
 	return lg_ULongAttribute(attribute, type, keyType);
     case CKA_ID:
 	SHA1_HashBuf(hash,key->u.ec.publicValue.data,key->u.ec.publicValue.len);
 	return lg_CopyAttribute(attribute,type,hash,SHA1_LENGTH);
     case CKA_DERIVE:
     case CKA_SIGN:
 	return LG_CLONE_ATTR(attribute,type,lg_StaticTrueAttr);
     case CKA_DECRYPT:
     case CKA_SIGN_RECOVER:
     case CKA_UNWRAP:
 	return LG_CLONE_ATTR(attribute,type,lg_StaticFalseAttr);
     case CKA_VALUE:
 	return lg_CopyPrivAttrSigned(attribute, type,
 					key->u.ec.privateValue.data,
 					key->u.ec.privateValue.len, sdbpw);
     case CKA_EC_PARAMS:
 	return lg_CopyAttributeSigned(attribute, type,
 					key->u.ec.ecParams.DEREncoding.data,
 					key->u.ec.ecParams.DEREncoding.len);
     case CKA_NETSCAPE_DB:
 	return lg_CopyAttributeSigned(attribute, type,
 					key->u.ec.publicValue.data,
 					key->u.ec.publicValue.len);
     default:
 	break;
     }
     return lg_invalidAttribute(attribute);
 }
 #endif /* NSS_DISABLE_ECC */
 static CK_RV
 lg_FindPrivateKeyAttribute(LGObjectCache *obj, CK_ATTRIBUTE_TYPE type,
 				CK_ATTRIBUTE *attribute)
 {
     NSSLOWKEYPrivateKey  *key;
     char *label;
     CK_RV crv;
     switch (type) {
     case CKA_PRIVATE:
     case CKA_SENSITIVE:
     case CKA_ALWAYS_SENSITIVE:
     case CKA_EXTRACTABLE:
     case CKA_MODIFIABLE:
     case CKA_LOCAL:
 	return LG_CLONE_ATTR(attribute,type,lg_StaticTrueAttr);
     case CKA_NEVER_EXTRACTABLE:
 	return LG_CLONE_ATTR(attribute,type,lg_StaticFalseAttr);
     case CKA_SUBJECT:
 	   return LG_CLONE_ATTR(attribute,type,lg_StaticNullAttr);
     case CKA_START_DATE:
     case CKA_END_DATE:
 	   return LG_CLONE_ATTR(attribute,type,lg_StaticNullAttr);
     case CKA_LABEL:
         label = lg_FindKeyNicknameByPublicKey(obj->sdb, &obj->dbKey);
 	if (label == NULL) {
 	   return LG_CLONE_ATTR(attribute,type,lg_StaticNullAttr);
 	}
 	crv = lg_CopyAttribute(attribute,type,label,PORT_Strlen(label));
 	PORT_Free(label);
 	return crv;
     default:
 	break;
     }
     key = lg_GetPrivateKey(obj);
     if (key == NULL) {
 	return CKR_OBJECT_HANDLE_INVALID;
     }
     switch (key->keyType) {
     case NSSLOWKEYRSAKey:
 	return lg_FindRSAPrivateKeyAttribute(key,type,attribute,obj->sdb);
     case NSSLOWKEYDSAKey:
 	return lg_FindDSAPrivateKeyAttribute(key,type,attribute,obj->sdb);
     case NSSLOWKEYDHKey:
 	return lg_FindDHPrivateKeyAttribute(key,type,attribute,obj->sdb);
 #ifndef NSS_DISABLE_ECC
     case NSSLOWKEYECKey:
 	return lg_FindECPrivateKeyAttribute(key,type,attribute,obj->sdb);
 #endif /* NSS_DISABLE_ECC */
     default:
 	break;
     }
     return lg_invalidAttribute(attribute);
 }
 static CK_RV
 lg_FindSMIMEAttribute(LGObjectCache *obj, CK_ATTRIBUTE_TYPE type,
 				CK_ATTRIBUTE *attribute)
 {
     certDBEntrySMime *entry;
     switch (type) {
     case CKA_PRIVATE:
     case CKA_MODIFIABLE:
 	return LG_CLONE_ATTR(attribute,type,lg_StaticFalseAttr);
     case CKA_NSS_EMAIL:
 	return lg_CopyAttribute(attribute,type,obj->dbKey.data,
 						obj->dbKey.len-1);
     case CKA_NSS_SMIME_TIMESTAMP:
     case CKA_SUBJECT:
     case CKA_VALUE:
 	break;
     default:
 	return lg_invalidAttribute(attribute);
     }
     entry = lg_getSMime(obj);
     if (entry == NULL) {
 	return CKR_OBJECT_HANDLE_INVALID;
     }
     switch (type) {
     case CKA_NSS_SMIME_TIMESTAMP:
 	return lg_CopyAttribute(attribute,type,entry->optionsDate.data,
 					entry->optionsDate.len);
     case CKA_SUBJECT:
 	return lg_CopyAttribute(attribute,type,entry->subjectName.data,
 					entry->subjectName.len);
     case CKA_VALUE:
 	return lg_CopyAttribute(attribute,type,entry->smimeOptions.data,
 					entry->smimeOptions.len);
     default:
 	break;
     }
     return lg_invalidAttribute(attribute);
 }
 static CK_RV
 lg_FindTrustAttribute(LGObjectCache *obj, CK_ATTRIBUTE_TYPE type,
 				CK_ATTRIBUTE *attribute)
 {
     NSSLOWCERTTrust *trust;
     NSSLOWCERTCertDBHandle *certHandle;
     NSSLOWCERTCertificate *cert;
     unsigned char hash[SHA1_LENGTH];
     unsigned int trustFlags;
     CK_RV crv;
     switch (type) {
     case CKA_PRIVATE:
 	return LG_CLONE_ATTR(attribute,type,lg_StaticFalseAttr);
     case CKA_MODIFIABLE:
 	return LG_CLONE_ATTR(attribute,type,lg_StaticTrueAttr);
     case CKA_CERT_SHA1_HASH:
     case CKA_CERT_MD5_HASH:
     case CKA_TRUST_CLIENT_AUTH:
     case CKA_TRUST_SERVER_AUTH:
     case CKA_TRUST_EMAIL_PROTECTION:
     case CKA_TRUST_CODE_SIGNING:
     case CKA_TRUST_STEP_UP_APPROVED:
     case CKA_ISSUER:
     case CKA_SERIAL_NUMBER:
 	break;
     default:
         return lg_invalidAttribute(attribute);
     }
     certHandle = lg_getCertDB(obj->sdb);
     if (!certHandle) {
 	return CKR_OBJECT_HANDLE_INVALID;
     }
     trust = lg_getTrust(obj, certHandle);
     if (trust == NULL) {
 	return CKR_OBJECT_HANDLE_INVALID;
     }
     switch (type) {
     case CKA_CERT_SHA1_HASH:
 	SHA1_HashBuf(hash,trust->derCert->data,trust->derCert->len);
 	return lg_CopyAttribute(attribute, type, hash, SHA1_LENGTH);
     case CKA_CERT_MD5_HASH:
 	MD5_HashBuf(hash,trust->derCert->data,trust->derCert->len);
 	return lg_CopyAttribute(attribute, type, hash, MD5_LENGTH);
     case CKA_TRUST_CLIENT_AUTH:
 	trustFlags = trust->trust->sslFlags & CERTDB_TRUSTED_CLIENT_CA ?
 		trust->trust->sslFlags | CERTDB_TRUSTED_CA : 0 ;
 	goto trust;
     case CKA_TRUST_SERVER_AUTH:
 	trustFlags = trust->trust->sslFlags;
 	goto trust;
     case CKA_TRUST_EMAIL_PROTECTION:
 	trustFlags = trust->trust->emailFlags;
 	goto trust;
     case CKA_TRUST_CODE_SIGNING:
 	trustFlags = trust->trust->objectSigningFlags;
 trust:
 	if (trustFlags & CERTDB_TRUSTED_CA ) {
 	    return lg_ULongAttribute(attribute, type,
 				     CKT_NSS_TRUSTED_DELEGATOR);
 	}
 	if (trustFlags & CERTDB_TRUSTED) {
 	    return lg_ULongAttribute(attribute, type, CKT_NSS_TRUSTED);
 	}
 	if (trustFlags & CERTDB_MUST_VERIFY) {
 	    return lg_ULongAttribute(attribute, type,
 				     CKT_NSS_MUST_VERIFY_TRUST);
 	}
 	if (trustFlags & CERTDB_TRUSTED_UNKNOWN) {
 	    return lg_ULongAttribute(attribute, type, CKT_NSS_TRUST_UNKNOWN);
 	}
 	if (trustFlags & CERTDB_VALID_CA) {
 	    return lg_ULongAttribute(attribute, type, CKT_NSS_VALID_DELEGATOR);
 	}
 	if (trustFlags & CERTDB_TERMINAL_RECORD) {
 	    return lg_ULongAttribute(attribute, type, CKT_NSS_NOT_TRUSTED);
 	}
 	return lg_ULongAttribute(attribute, type, CKT_NSS_TRUST_UNKNOWN);
     case CKA_TRUST_STEP_UP_APPROVED:
 	if (trust->trust->sslFlags & CERTDB_GOVT_APPROVED_CA) {
 	    return LG_CLONE_ATTR(attribute,type,lg_StaticTrueAttr);
 	} else {
 	    return LG_CLONE_ATTR(attribute,type,lg_StaticFalseAttr);
 	}
     default:
 	break;
     }
     switch (type) {
     case CKA_ISSUER:
 	cert = lg_getCert(obj, certHandle);
 	if (cert == NULL) break;
 	crv = lg_CopyAttribute(attribute,type,cert->derIssuer.data,
 						cert->derIssuer.len);
 	break;
     case CKA_SERIAL_NUMBER:
 	cert = lg_getCert(obj, certHandle);
 	if (cert == NULL) break;
 	crv =  lg_CopyAttribute(attribute,type,cert->derSN.data,
 						cert->derSN.len);
 	break;
     default:
 	cert = NULL;
 	break;
     }
     if (cert) {
 	nsslowcert_DestroyCertificate(cert);
 	return crv;
     }
     return lg_invalidAttribute(attribute);
 }
 static CK_RV
 lg_FindCrlAttribute(LGObjectCache *obj, CK_ATTRIBUTE_TYPE type,
 				CK_ATTRIBUTE *attribute)
 {
     certDBEntryRevocation *crl;
     switch (type) {
     case CKA_PRIVATE:
     case CKA_MODIFIABLE:
 	return LG_CLONE_ATTR(attribute,type,lg_StaticFalseAttr);
     case CKA_NSS_KRL:
 	return ((obj->handle == LG_TOKEN_KRL_HANDLE)
 		? LG_CLONE_ATTR(attribute,type,lg_StaticTrueAttr)
 		: LG_CLONE_ATTR(attribute,type,lg_StaticFalseAttr));
     case CKA_SUBJECT:
 	return lg_CopyAttribute(attribute,type,obj->dbKey.data,
 						obj->dbKey.len);
     case CKA_NSS_URL:
     case CKA_VALUE:
 	break;
     default:
 	return lg_invalidAttribute(attribute);
     }
     crl =  lg_getCrl(obj);
     if (!crl) {
 	return CKR_OBJECT_HANDLE_INVALID;
     }
     switch (type) {
     case CKA_NSS_URL:
 	if (crl->url == NULL) {
 	    return LG_CLONE_ATTR(attribute,type,lg_StaticNullAttr);
 	}
 	return lg_CopyAttribute(attribute, type, crl->url,
 					PORT_Strlen(crl->url)+1);
     case CKA_VALUE:
 	return lg_CopyAttribute(attribute, type, crl->derCrl.data,
 						crl->derCrl.len);
     default:
 	break;
     }
     return lg_invalidAttribute(attribute);
 }
 static CK_RV
 lg_FindCertAttribute(LGObjectCache *obj, CK_ATTRIBUTE_TYPE type,
 				CK_ATTRIBUTE *attribute)
 {
     NSSLOWCERTCertificate  *cert;
     NSSLOWCERTCertDBHandle *certHandle;
     NSSLOWKEYPublicKey     *pubKey;
     unsigned char hash[SHA1_LENGTH];
     SECItem *item;
     switch (type) {
     case CKA_PRIVATE:
 	return LG_CLONE_ATTR(attribute,type,lg_StaticFalseAttr);
     case CKA_MODIFIABLE:
 	return LG_CLONE_ATTR(attribute,type,lg_StaticTrueAttr);
     case CKA_CERTIFICATE_TYPE:
         /* hardcoding X.509 into here */
         return lg_ULongAttribute(attribute, type, CKC_X_509);
     case CKA_VALUE:
     case CKA_ID:
     case CKA_LABEL:
     case CKA_SUBJECT:
     case CKA_ISSUER:
     case CKA_SERIAL_NUMBER:
     case CKA_NSS_EMAIL:
 	break;
     default:
 	return lg_invalidAttribute(attribute);
     }
     certHandle = lg_getCertDB(obj->sdb);
     if (certHandle == NULL) {
 	return CKR_OBJECT_HANDLE_INVALID;
     }
     cert = lg_getCert(obj, certHandle);
     if (cert == NULL) {
 	return CKR_OBJECT_HANDLE_INVALID;
     }
     switch (type) {
     case CKA_VALUE:
 	return lg_CopyAttribute(attribute,type,cert->derCert.data,
 						cert->derCert.len);
     case CKA_ID:
 	if (((cert->trust->sslFlags & CERTDB_USER) == 0) &&
 		((cert->trust->emailFlags & CERTDB_USER) == 0) &&
 		((cert->trust->objectSigningFlags & CERTDB_USER) == 0)) {
 	    return LG_CLONE_ATTR(attribute,type,lg_StaticNullAttr);
 	}
 	pubKey = nsslowcert_ExtractPublicKey(cert);
 	if (pubKey == NULL) break;
 	item = lg_GetPubItem(pubKey);
 	if (item == NULL) {
 	    lg_nsslowkey_DestroyPublicKey(pubKey);
 	    break;
 	}
 	SHA1_HashBuf(hash,item->data,item->len);
 	/* item is imbedded in pubKey, just free the key */
 	lg_nsslowkey_DestroyPublicKey(pubKey);
 	return lg_CopyAttribute(attribute, type, hash, SHA1_LENGTH);
     case CKA_LABEL:
 	return cert->nickname
 	       ? lg_CopyAttribute(attribute, type, cert->nickname,
 				        PORT_Strlen(cert->nickname))
 	       : LG_CLONE_ATTR(attribute,type,lg_StaticNullAttr);
     case CKA_SUBJECT:
 	return lg_CopyAttribute(attribute,type,cert->derSubject.data,
 						cert->derSubject.len);
     case CKA_ISSUER:
 	return lg_CopyAttribute(attribute,type,cert->derIssuer.data,
 						cert->derIssuer.len);
     case CKA_SERIAL_NUMBER:
 	return lg_CopyAttribute(attribute,type,cert->derSN.data,
 						cert->derSN.len);
     case CKA_NSS_EMAIL:
 	return (cert->emailAddr && cert->emailAddr[0])
 	    ? lg_CopyAttribute(attribute, type, cert->emailAddr,
 	                             PORT_Strlen(cert->emailAddr))
 	    : LG_CLONE_ATTR(attribute,type,lg_StaticNullAttr);
     default:
 	break;
     }
     return lg_invalidAttribute(attribute);
 }
 CK_RV
 lg_GetSingleAttribute(LGObjectCache *obj, CK_ATTRIBUTE *attribute)
 {
     /* handle the common ones */
     CK_ATTRIBUTE_TYPE type = attribute->type;
     switch (type) {
     case CKA_CLASS:
 	return lg_ULongAttribute(attribute,type,obj->objclass);
     case CKA_TOKEN:
 	return LG_CLONE_ATTR(attribute, type,lg_StaticTrueAttr);
     case CKA_LABEL:
 	if (  (obj->objclass == CKO_CERTIFICATE)
 	   || (obj->objclass == CKO_PRIVATE_KEY)
 	   || (obj->objclass == CKO_PUBLIC_KEY)
 	   || (obj->objclass == CKO_SECRET_KEY)) {
 	    break;
 	}
 	return LG_CLONE_ATTR(attribute,type,lg_StaticNullAttr);
     default:
 	break;
     }
     switch (obj->objclass) {
     case CKO_CERTIFICATE:
 	return lg_FindCertAttribute(obj,type,attribute);
     case CKO_NSS_CRL:
 	return lg_FindCrlAttribute(obj,type,attribute);
     case CKO_NSS_TRUST:
 	return lg_FindTrustAttribute(obj,type,attribute);
     case CKO_NSS_SMIME:
 	return lg_FindSMIMEAttribute(obj,type,attribute);
     case CKO_PUBLIC_KEY:
 	return lg_FindPublicKeyAttribute(obj,type,attribute);
     case CKO_PRIVATE_KEY:
 	return lg_FindPrivateKeyAttribute(obj,type,attribute);
     case CKO_SECRET_KEY:
 	return lg_FindSecretKeyAttribute(obj,type,attribute);
     default:
 	break;
     }
     return lg_invalidAttribute(attribute);
 }
 /*
  * Fill in the attribute template based on the data in the database.
  */
 CK_RV
 lg_GetAttributeValue(SDB *sdb, CK_OBJECT_HANDLE handle, CK_ATTRIBUTE *templ,
 		CK_ULONG count)
 {
     LGObjectCache *obj = lg_NewObjectCache(sdb, NULL, handle & ~LG_TOKEN_MASK);
     CK_RV crv, crvCollect = CKR_OK;
     unsigned int i;
     if (obj == NULL) {
 	return CKR_OBJECT_HANDLE_INVALID;
     }
     for (i=0; i < count; i++) {
 	crv = lg_GetSingleAttribute(obj, &templ[i]);
 	if (crvCollect == CKR_OK) crvCollect = crv;
     }
     lg_DestroyObjectCache(obj);
     return crvCollect;
 }
 PRBool
 lg_cmpAttribute(LGObjectCache *obj, const CK_ATTRIBUTE *attribute)
 {
     unsigned char buf[LG_BUF_SPACE];
     CK_ATTRIBUTE testAttr;
     unsigned char *tempBuf = NULL;
     PRBool match = PR_TRUE;
     CK_RV crv;
     /* we're going to compare 'attribute' with the actual attribute from
      * the object. We'll use the length of 'attribute' to decide how much
      * space we need to read the test attribute. If 'attribute' doesn't give
      * enough space, then we know the values don't match and that will
      * show up as ckr != CKR_OK */
     testAttr = *attribute;
     testAttr.pValue = buf;
     /* if we don't have enough space, malloc it */
     if (attribute->ulValueLen > LG_BUF_SPACE) {
 	tempBuf = PORT_Alloc(attribute->ulValueLen);
 	if (!tempBuf) {
 	    return PR_FALSE;
 	}
 	testAttr.pValue = tempBuf;
     }
     /* get the attribute */
     crv = lg_GetSingleAttribute(obj, &testAttr);
     /* if the attribute was read OK, compare it */
     if ((crv != CKR_OK) || (attribute->ulValueLen != testAttr.ulValueLen) ||
      (PORT_Memcmp(attribute->pValue,testAttr.pValue,testAttr.ulValueLen)!= 0)){
 	/* something didn't match, this isn't the object we are looking for */
 	match = PR_FALSE;
     }
     /* free the buffer we may have allocated */
     if (tempBuf) {
 	PORT_Free(tempBuf);
     }
     return match;
 }
 PRBool
 lg_tokenMatch(SDB *sdb, const SECItem *dbKey, CK_OBJECT_HANDLE class,
 		const CK_ATTRIBUTE *templ, CK_ULONG count)
 {
     PRBool match = PR_TRUE;
     LGObjectCache *obj = lg_NewObjectCache(sdb, dbKey, class);
     unsigned int i;
     if (obj == NULL) {
 	return PR_FALSE;
     }
     for (i=0; i < count; i++) {
 	match = lg_cmpAttribute(obj, &templ[i]);
 	if (!match) {
 	   break;
 	}
     }
     /* done looking, free up our cache */
     lg_DestroyObjectCache(obj);
     /* if we get through the whole list without finding a mismatched attribute,
      * then this object fits the criteria we are matching */
     return match;
 }
 static CK_RV
 lg_SetCertAttribute(LGObjectCache *obj, CK_ATTRIBUTE_TYPE type,
 					const void *value, unsigned int len)
 {
     NSSLOWCERTCertificate  *cert;
     NSSLOWCERTCertDBHandle *certHandle;
     char *nickname = NULL;
     SECStatus rv;
     CK_RV crv;
     /* we can't change  the EMAIL values, but let the
      * upper layers feel better about the fact we tried to set these */
     if (type == CKA_NSS_EMAIL) {
 	return CKR_OK;
     }
     certHandle = lg_getCertDB(obj->sdb);
     if (certHandle == NULL) {
 	crv = CKR_TOKEN_WRITE_PROTECTED;
 	goto done;
     }
     if ((type != CKA_LABEL)  && (type != CKA_ID)) {
 	crv = CKR_ATTRIBUTE_READ_ONLY;
 	goto done;
     }
     cert = lg_getCert(obj, certHandle);
     if (cert == NULL) {
 	crv = CKR_OBJECT_HANDLE_INVALID;
 	goto done;
     }
     /* if the app is trying to set CKA_ID, it's probably because it just
      * imported the key. Look to see if we need to set the CERTDB_USER bits.
      */
     if (type == CKA_ID) {
 	if (((cert->trust->sslFlags & CERTDB_USER) == 0) &&
 		((cert->trust->emailFlags & CERTDB_USER) == 0) &&
 		((cert->trust->objectSigningFlags & CERTDB_USER) == 0)) {
 	    NSSLOWKEYDBHandle      *keyHandle;
 	    keyHandle = lg_getKeyDB(obj->sdb);
 	    if (keyHandle) {
 		if (nsslowkey_KeyForCertExists(keyHandle, cert)) {
 		    NSSLOWCERTCertTrust trust = *cert->trust;
 		    trust.sslFlags |= CERTDB_USER;
 		    trust.emailFlags |= CERTDB_USER;
 		    trust.objectSigningFlags |= CERTDB_USER;
 		    nsslowcert_ChangeCertTrust(certHandle,cert,&trust);
 		}
 	    }
 	}
 	crv = CKR_OK;
 	goto done;
     }
     /* must be CKA_LABEL */
     if (value != NULL) {
 	nickname = PORT_ZAlloc(len+1);
 	if (nickname == NULL) {
 	    crv = CKR_HOST_MEMORY;
 	    goto done;
 	}
 	PORT_Memcpy(nickname,value,len);
 	nickname[len] = 0;
     }
     rv = nsslowcert_AddPermNickname(certHandle, cert, nickname);
     crv = (rv == SECSuccess) ? CKR_OK : CKR_DEVICE_ERROR;
 done:
     if (nickname) {
 	PORT_Free(nickname);
     }
     return crv;
 }
 static CK_RV
 lg_SetPrivateKeyAttribute(LGObjectCache *obj, CK_ATTRIBUTE_TYPE type,
 			const void *value, unsigned int len,
 			PRBool *writePrivate)
 {
     NSSLOWKEYPrivateKey *privKey;
     NSSLOWKEYDBHandle   *keyHandle;
     char *nickname = NULL;
     SECStatus rv;
     CK_RV crv;
     /* we can't change the ID and we don't store the subject, but let the
      * upper layers feel better about the fact we tried to set these */
     if ((type == CKA_ID) || (type == CKA_SUBJECT) ||
 	(type == CKA_LOCAL) || (type == CKA_NEVER_EXTRACTABLE) ||
 	(type == CKA_ALWAYS_SENSITIVE)) {
 	return CKR_OK;
     }
     keyHandle = lg_getKeyDB(obj->sdb);
     if (keyHandle == NULL) {
 	crv = CKR_TOKEN_WRITE_PROTECTED;
 	goto done;
     }
     privKey = lg_GetPrivateKeyWithDB(obj, keyHandle);
     if (privKey == NULL) {
 	crv = CKR_OBJECT_HANDLE_INVALID;
 	goto done;
     }
     crv = CKR_ATTRIBUTE_READ_ONLY;
     switch(type) {
     case CKA_LABEL:
 	if (value != NULL) {
 	    nickname = PORT_ZAlloc(len+1);
 	    if (nickname == NULL) {
 		crv = CKR_HOST_MEMORY;
 		goto done;
 	    }
 	    PORT_Memcpy(nickname,value,len);
 	    nickname[len] = 0;
 	}
 	rv = nsslowkey_UpdateNickname(keyHandle, privKey, &obj->dbKey,
 					nickname, obj->sdb);
 	crv = (rv == SECSuccess) ? CKR_OK :  CKR_DEVICE_ERROR;
 	break;
     case CKA_UNWRAP:
     case CKA_SIGN:
     case CKA_DERIVE:
     case CKA_SIGN_RECOVER:
     case CKA_DECRYPT:
 	/* ignore attempts to change restrict these.
 	 * legacyDB ignore these flags and always presents all of them
 	 * that are valid as true.
 	 * NOTE: We only get here if the current value and the new value do
 	 * not match. */
 	if (*(char *)value == 0) {
 	    crv = CKR_OK;
 	}
 	break;
     case CKA_VALUE:
     case CKA_PRIVATE_EXPONENT:
     case CKA_PRIME_1:
     case CKA_PRIME_2:
     case CKA_EXPONENT_1:
     case CKA_EXPONENT_2:
     case CKA_COEFFICIENT:
 	/* We aren't really changing these values, we are just triggering
 	 * the database to update it's entry */
 	*writePrivate = PR_TRUE;
 	crv = CKR_OK;
 	break;
     default:
 	crv = CKR_ATTRIBUTE_READ_ONLY;
 	break;
     }
 done:
     if (nickname) {
 	PORT_Free(nickname);
     }
     return crv;
 }
 static CK_RV
 lg_SetPublicKeyAttribute(LGObjectCache *obj, CK_ATTRIBUTE_TYPE type,
 			const void *value, unsigned int len,
 			PRBool *writePrivate)
 {
     /* we can't change the ID and we don't store the subject, but let the
      * upper layers feel better about the fact we tried to set these */
     if ((type == CKA_ID) || (type == CKA_SUBJECT) || (type == CKA_LABEL)) {
 	return CKR_OK;
     }
     return  CKR_ATTRIBUTE_READ_ONLY;
 }
 static CK_RV
 lg_SetTrustAttribute(LGObjectCache *obj, const CK_ATTRIBUTE *attr)
 {
     unsigned int flags;
     CK_TRUST  trust;
     NSSLOWCERTCertificate  *cert;
     NSSLOWCERTCertDBHandle *certHandle;
     NSSLOWCERTCertTrust    dbTrust;
     SECStatus rv;
     CK_RV crv;
     if (attr->type == CKA_LABEL) {
 	return CKR_OK;
     }
     crv = lg_GetULongAttribute(attr->type, attr, 1, &trust);
     if (crv != CKR_OK) {
 	return crv;
     }
     flags = lg_MapTrust(trust, (PRBool) (attr->type == CKA_TRUST_CLIENT_AUTH));
     certHandle = lg_getCertDB(obj->sdb);
     if (certHandle == NULL) {
 	crv = CKR_TOKEN_WRITE_PROTECTED;
 	goto done;
     }
     cert = lg_getCert(obj, certHandle);
     if (cert == NULL) {
 	crv = CKR_OBJECT_HANDLE_INVALID;
 	goto done;
     }
     dbTrust = *cert->trust;
     switch (attr->type) {
     case CKA_TRUST_EMAIL_PROTECTION:
 	dbTrust.emailFlags = flags |
 		(cert->trust->emailFlags & CERTDB_PRESERVE_TRUST_BITS);
 	break;
     case CKA_TRUST_CODE_SIGNING:
 	dbTrust.objectSigningFlags = flags |
 		(cert->trust->objectSigningFlags & CERTDB_PRESERVE_TRUST_BITS);
 	break;
     case CKA_TRUST_CLIENT_AUTH:
 	dbTrust.sslFlags = flags | (cert->trust->sslFlags &
 				(CERTDB_PRESERVE_TRUST_BITS|CERTDB_TRUSTED_CA));
 	break;
     case CKA_TRUST_SERVER_AUTH:
 	dbTrust.sslFlags = flags | (cert->trust->sslFlags &
 			(CERTDB_PRESERVE_TRUST_BITS|CERTDB_TRUSTED_CLIENT_CA));
 	break;
     default:
 	crv = CKR_ATTRIBUTE_READ_ONLY;
 	goto done;
     }
     rv = nsslowcert_ChangeCertTrust(certHandle, cert, &dbTrust);
     crv = (rv == SECSuccess) ? CKR_OK : CKR_DEVICE_ERROR;
 done:
     return crv;
 }
 static CK_RV
 lg_SetSingleAttribute(LGObjectCache *obj, const CK_ATTRIBUTE *attr,
 		      PRBool *writePrivate)
 {
     CK_ATTRIBUTE attribLocal;
     CK_RV crv;
     if ((attr->type == CKA_NETSCAPE_DB) && (obj->objclass == CKO_PRIVATE_KEY)) {
 	*writePrivate = PR_TRUE;
 	return CKR_OK;
     }
     /* Make sure the attribute exists first */
     attribLocal.type = attr->type;
     attribLocal.pValue = NULL;
     attribLocal.ulValueLen = 0;
     crv = lg_GetSingleAttribute(obj, &attribLocal);
     if (crv != CKR_OK) {
 	return crv;
     }
     /* if we are just setting it to the value we already have,
      * allow it to happen. Let label setting go through so
      * we have the opportunity to repair any database corruption. */
     if (attr->type != CKA_LABEL) {
 	if (lg_cmpAttribute(obj,attr)) {
 	    return CKR_OK;
 	}
     }
     crv = CKR_ATTRIBUTE_READ_ONLY;
     switch (obj->objclass) {
     case CKO_CERTIFICATE:
 	/* change NICKNAME, EMAIL,  */
 	crv = lg_SetCertAttribute(obj,attr->type,
 				  attr->pValue,attr->ulValueLen);
 	break;
     case CKO_NSS_CRL:
 	/* change URL */
 	break;
     case CKO_NSS_TRUST:
 	crv = lg_SetTrustAttribute(obj,attr);
 	break;
     case CKO_PRIVATE_KEY:
     case CKO_SECRET_KEY:
 	crv = lg_SetPrivateKeyAttribute(obj,attr->type,
 			attr->pValue,attr->ulValueLen, writePrivate);
 	break;
     case CKO_PUBLIC_KEY:
 	crv = lg_SetPublicKeyAttribute(obj,attr->type,
 			attr->pValue,attr->ulValueLen, writePrivate);
 	break;
     }
     return crv;
 }
 /*
  * Fill in the attribute template based on the data in the database.
  */
 CK_RV
 lg_SetAttributeValue(SDB *sdb, CK_OBJECT_HANDLE handle,
 			const CK_ATTRIBUTE *templ, CK_ULONG count)
 {
     LGObjectCache *obj = lg_NewObjectCache(sdb, NULL, handle & ~LG_TOKEN_MASK);
     CK_RV crv, crvCollect = CKR_OK;
     PRBool writePrivate = PR_FALSE;
     unsigned int i;
     if (obj == NULL) {
 	return CKR_OBJECT_HANDLE_INVALID;
     }
     for (i=0; i < count; i++) {
 	crv = lg_SetSingleAttribute(obj, &templ[i], &writePrivate);
 	if (crvCollect == CKR_OK) crvCollect = crv;
     }
     /* Write any collected changes out for private and secret keys.
      *  don't do the write for just the label */
     if (writePrivate) {
 	NSSLOWKEYPrivateKey *privKey = lg_GetPrivateKey(obj);
 	SECStatus rv = SECFailure;
 	char * label = lg_FindKeyNicknameByPublicKey(obj->sdb, &obj->dbKey);
 	if (privKey) {
 	    rv = nsslowkey_StoreKeyByPublicKeyAlg(lg_getKeyDB(sdb), privKey,
 		&obj->dbKey, label, sdb, PR_TRUE );
 	}
 	if (rv != SECSuccess) {
 	    crv = CKR_DEVICE_ERROR;
 	}
     }
     lg_DestroyObjectCache(obj);
     return crvCollect;
 }

The Tor Browser / annotate

security/nss/lib/softoken/legacydb/lgattr.c@7e26c7da4463 (annotated)

security/nss/lib/softoken/legacydb/lgattr.c