The Tor Browser: security/nss/lib/pk11wrap/pk11merge.c@6474c204b198 (annotated)

security/nss/lib/pk11wrap/pk11merge.c@6474c204b198 (annotated)

security/nss/lib/pk11wrap/pk11merge.c

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /* 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/. */
 /*
  * Merge the source token into the target token.
  */
 #include "secmod.h"
 #include "secmodi.h"
 #include "secmodti.h"
 #include "pk11pub.h"
 #include "pk11priv.h"
 #include "pkcs11.h"
 #include "seccomon.h"
 #include "secerr.h"
 #include "keyhi.h"
 #include "hasht.h"
 #include "cert.h"
 #include "certdb.h"
 /*************************************************************************
  *
  *             short utilities to aid in the merge
  *
  *************************************************************************/
 /*
  * write a bunch of attributes out to an existing object.
  */
 static SECStatus
 pk11_setAttributes(PK11SlotInfo *slot, CK_OBJECT_HANDLE id,
 		CK_ATTRIBUTE *setTemplate, CK_ULONG setTemplCount)
 {
     CK_RV crv;
     CK_SESSION_HANDLE rwsession;
     rwsession = PK11_GetRWSession(slot);
     if (rwsession == CK_INVALID_SESSION) {
     	PORT_SetError(SEC_ERROR_BAD_DATA);
     	return SECFailure;
     }
     crv = PK11_GETTAB(slot)->C_SetAttributeValue(rwsession, id,
 			setTemplate, setTemplCount);
     PK11_RestoreROSession(slot, rwsession);
     if (crv != CKR_OK) {
 	PORT_SetError(PK11_MapError(crv));
 	return SECFailure;
     }
     return SECSuccess;
 }
 /*
  * copy a template of attributes from a source object to a target object.
  * if target object is not given, create it.
  */
 static SECStatus
 pk11_copyAttributes(PLArenaPool *arena,
 	PK11SlotInfo *targetSlot, CK_OBJECT_HANDLE targetID,
 	PK11SlotInfo *sourceSlot, CK_OBJECT_HANDLE sourceID,
 	CK_ATTRIBUTE *copyTemplate, CK_ULONG copyTemplateCount)
 {
     SECStatus rv = PK11_GetAttributes(arena, sourceSlot, sourceID,
 				copyTemplate, copyTemplateCount);
     if (rv != SECSuccess) {
 	return rv;
     }
     if (targetID == CK_INVALID_HANDLE) {
 	/* we need to create the object */
 	rv = PK11_CreateNewObject(targetSlot, CK_INVALID_SESSION,
 		copyTemplate, copyTemplateCount, PR_TRUE, &targetID);
     } else {
 	/* update the existing object with the new attributes */
 	rv = pk11_setAttributes(targetSlot, targetID,
 			copyTemplate, copyTemplateCount);
     }
     return rv;
 }
 /*
  * look for a matching object across tokens.
  */
 static SECStatus
 pk11_matchAcrossTokens(PLArenaPool *arena, PK11SlotInfo *targetSlot,
 		       PK11SlotInfo *sourceSlot,
 		       CK_ATTRIBUTE *template, CK_ULONG tsize,
 		       CK_OBJECT_HANDLE id, CK_OBJECT_HANDLE *peer)
 {
     CK_RV crv;
     *peer = CK_INVALID_HANDLE;
     crv = PK11_GetAttributes(arena, sourceSlot, id, template, tsize);
     if (crv != CKR_OK) {
  	PORT_SetError( PK11_MapError(crv) );
 	goto loser;
     }
     if (template[0].ulValueLen == -1) {
 	crv = CKR_ATTRIBUTE_TYPE_INVALID;
  	PORT_SetError( PK11_MapError(crv) );
 	goto loser;
     }
     *peer = pk11_FindObjectByTemplate(targetSlot, template, tsize);
     return SECSuccess;
 loser:
     return SECFailure;
 }
 /*
  * Encrypt using key and parameters
  */
 SECStatus
 pk11_encrypt(PK11SymKey *symKey, CK_MECHANISM_TYPE mechType, SECItem *param,
 	SECItem *input, SECItem **output)
 {
     PK11Context *ctxt = NULL;
     SECStatus rv = SECSuccess;
     if (*output) {
 	SECITEM_FreeItem(*output,PR_TRUE);
     }
     *output = SECITEM_AllocItem(NULL, NULL, input->len+20 /*slop*/);
     if (!*output) {
 	rv = SECFailure;
 	goto done;
     }
     ctxt = PK11_CreateContextBySymKey(mechType, CKA_ENCRYPT, symKey, param);
     if (ctxt == NULL) {
 	rv = SECFailure;
 	goto done;
     }
     rv = PK11_CipherOp(ctxt, (*output)->data,
 		(int *)&((*output)->len),
 		(*output)->len, input->data, input->len);
 done:
     if (ctxt) {
 	PK11_Finalize(ctxt);
 	PK11_DestroyContext(ctxt,PR_TRUE);
     }
     if (rv != SECSuccess) {
 	if (*output) {
 	    SECITEM_FreeItem(*output, PR_TRUE);
 	    *output = NULL;
 	}
     }
     return rv;
 }
 /*************************************************************************
  *
  *            Private Keys
  *
  *************************************************************************/
 /*
  * Fetch the key usage based on the pkcs #11 flags
  */
 unsigned int
 pk11_getPrivateKeyUsage(PK11SlotInfo *slot, CK_OBJECT_HANDLE id)
 {
     unsigned int usage = 0;
     if ((PK11_HasAttributeSet(slot, id, CKA_UNWRAP,PR_FALSE) ||
 			PK11_HasAttributeSet(slot,id, CKA_DECRYPT,PR_FALSE))) {
 	usage |= KU_KEY_ENCIPHERMENT;
     }
     if (PK11_HasAttributeSet(slot, id, CKA_DERIVE, PR_FALSE)) {
 	usage |= KU_KEY_AGREEMENT;
     }
     if ((PK11_HasAttributeSet(slot, id, CKA_SIGN_RECOVER, PR_FALSE) ||
 			PK11_HasAttributeSet(slot, id, CKA_SIGN, PR_FALSE))) {
 	usage |= KU_DIGITAL_SIGNATURE;
     }
     return usage;
 }
 /*
  * merge a private key,
  *
  * Private keys are merged using PBE wrapped keys with a random
  * value as the 'password'. Once the base key is moved, The remaining
  * attributes (SUBJECT) is copied.
  */
 static SECStatus
 pk11_mergePrivateKey(PK11SlotInfo *targetSlot, PK11SlotInfo *sourceSlot,
 		CK_OBJECT_HANDLE id, void *targetPwArg, void *sourcePwArg)
 {
     SECKEYPrivateKey *sourceKey = NULL;
     CK_OBJECT_HANDLE targetKeyID;
     SECKEYEncryptedPrivateKeyInfo *epki = NULL;
     char *nickname = NULL;
     SECItem nickItem;
     SECItem pwitem;
     SECItem publicValue;
     PLArenaPool *arena = NULL;
     SECStatus rv = SECSuccess;
     unsigned int keyUsage;
     unsigned char randomData[SHA1_LENGTH];
     SECOidTag algTag = SEC_OID_PKCS12_V2_PBE_WITH_SHA1_AND_3KEY_TRIPLE_DES_CBC;
     CK_ATTRIBUTE privTemplate[] = {
 	{ CKA_ID, NULL, 0 },
 	{ CKA_CLASS, NULL, 0 }
     };
     CK_ULONG privTemplateCount = sizeof(privTemplate)/sizeof(privTemplate[0]);
     CK_ATTRIBUTE privCopyTemplate[] = {
 	{ CKA_SUBJECT, NULL, 0 }
     };
     CK_ULONG privCopyTemplateCount =
 		sizeof(privCopyTemplate)/sizeof(privCopyTemplate[0]);
     arena = PORT_NewArena( DER_DEFAULT_CHUNKSIZE);
     if (arena == NULL) {
 	rv = SECFailure;
 	goto done;
     }
     /* check to see if the key is already in the target slot */
     rv = pk11_matchAcrossTokens(arena, targetSlot, sourceSlot, privTemplate,
 				privTemplateCount, id, &targetKeyID);
     if (rv != SECSuccess) {
 	goto done;
     }
     if (targetKeyID != CK_INVALID_HANDLE) {
 	/* match found,  not an error ... */
 	goto done;
     }
     /* get an NSS representation of our source key */
     sourceKey = PK11_MakePrivKey(sourceSlot, nullKey, PR_FALSE,
 				 id, sourcePwArg);
     if (sourceKey == NULL) {
 	rv = SECFailure;
 	goto done;
     }
     /* Load the private key */
     /* generate a random pwitem */
     rv = PK11_GenerateRandom(randomData, sizeof(randomData));
     if (rv != SECSuccess) {
 	goto done;
     }
     pwitem.data = randomData;
     pwitem.len = sizeof(randomData);
     /* fetch the private key encrypted */
     epki = PK11_ExportEncryptedPrivKeyInfo(sourceSlot, algTag, &pwitem,
 					   sourceKey, 1, sourcePwArg);
     if (epki == NULL) {
 	rv = SECFailure;
 	goto done;
     }
     nickname = PK11_GetObjectNickname(sourceSlot, id);
     /* NULL nickanme is fine (in fact is often normal) */
     if (nickname)  {
 	nickItem.data = (unsigned char *)nickname;
 	nickItem.len = PORT_Strlen(nickname);
     }
     keyUsage = pk11_getPrivateKeyUsage(sourceSlot, id);
     /* pass in the CKA_ID */
     publicValue.data = privTemplate[0].pValue;
     publicValue.len = privTemplate[0].ulValueLen;
     rv = PK11_ImportEncryptedPrivateKeyInfo(targetSlot, epki, &pwitem,
 			nickname? &nickItem : NULL , &publicValue,
 			PR_TRUE, PR_TRUE, sourceKey->keyType, keyUsage,
 			targetPwArg);
     if (rv != SECSuccess) {
 	goto done;
     }
     /* make sure it made it */
     rv = pk11_matchAcrossTokens(arena, targetSlot, sourceSlot, privTemplate,
 				privTemplateCount, id, &targetKeyID);
     if (rv != SECSuccess) {
 	goto done;
     }
     if (targetKeyID == CK_INVALID_HANDLE) {
 	/* this time the key should exist */
 	rv = SECFailure;
 	goto done;
     }
     /* fill in remaining attributes */
     rv = pk11_copyAttributes(arena, targetSlot, targetKeyID, sourceSlot, id,
 				privCopyTemplate, privCopyTemplateCount);
 done:
     /* make sure the 'key' is cleared */
     PORT_Memset(randomData, 0, sizeof(randomData));
     if (nickname) {
 	PORT_Free(nickname);
     }
     if (sourceKey) {
 	SECKEY_DestroyPrivateKey(sourceKey);
     }
     if (epki) {
 	SECKEY_DestroyEncryptedPrivateKeyInfo(epki, PR_TRUE);
     }
     if (arena) {
          PORT_FreeArena(arena,PR_FALSE);
     }
     return rv;
 }
 /*************************************************************************
  *
  *            Secret Keys
  *
  *************************************************************************/
 /*
  * we need to find a unique CKA_ID.
  *  The basic idea is to just increment the lowest byte.
  *  This code also handles the following corner cases:
  *   1) the single byte overflows. On overflow we increment the next byte up
  *    and so forth until we have overflowed the entire CKA_ID.
  *   2) If we overflow the entire CKA_ID we expand it by one byte.
  *   3) the CKA_ID is non-existent, we create a new one with one byte.
  *    This means no matter what CKA_ID is passed, the result of this function
  *    is always a new CKA_ID, and this function will never return the same
  *    CKA_ID the it has returned in the passed.
  */
 static SECStatus
 pk11_incrementID(PLArenaPool *arena, CK_ATTRIBUTE *ptemplate)
 {
     unsigned char *buf = ptemplate->pValue;
     CK_ULONG len = ptemplate->ulValueLen;
     if (buf == NULL || len == (CK_ULONG)-1) {
 	/* we have no valid CKAID, we'll create a basic one byte CKA_ID below */
 	len = 0;
     } else {
 	CK_ULONG i;
 	/* walk from the back to front, incrementing
 	 * the CKA_ID until we no longer have a carry,
 	 * or have hit the front of the id. */
 	for (i=len; i != 0; i--) {
 	    buf[i-1]++;
 	    if (buf[i-1] != 0) {
 		/* no more carries, the increment is complete */
 		return SECSuccess;
 	     }
 	}
 	/* we've now overflowed, fall through and expand the CKA_ID by
 	 * one byte */
     }
     /* if we are here we've run the counter to zero (indicating an overflow).
      * create an CKA_ID that is all zeros, but has one more zero than
      * the previous CKA_ID */
     buf = PORT_ArenaZAlloc(arena, len+1);
     if (buf == NULL) {
 	return SECFailure;
     }
     ptemplate->pValue = buf;
     ptemplate->ulValueLen = len+1;
     return SECSuccess;
 }
 static CK_FLAGS
 pk11_getSecretKeyFlags(PK11SlotInfo *slot, CK_OBJECT_HANDLE id)
 {
     CK_FLAGS flags = 0;
     if (PK11_HasAttributeSet(slot, id, CKA_UNWRAP, PR_FALSE)) {
 	flags |= CKF_UNWRAP;
     }
     if (PK11_HasAttributeSet(slot, id, CKA_WRAP, PR_FALSE)) {
 	flags |= CKF_WRAP;
     }
     if (PK11_HasAttributeSet(slot, id, CKA_ENCRYPT, PR_FALSE)) {
 	flags |= CKF_ENCRYPT;
     }
     if (PK11_HasAttributeSet(slot, id, CKA_DECRYPT, PR_FALSE)) {
 	flags |= CKF_DECRYPT;
     }
     if (PK11_HasAttributeSet(slot, id, CKA_DERIVE, PR_FALSE)) {
 	flags |= CKF_DERIVE;
     }
     if (PK11_HasAttributeSet(slot, id, CKA_SIGN, PR_FALSE)) {
 	flags |= CKF_SIGN;
     }
     if (PK11_HasAttributeSet(slot, id, CKA_SIGN_RECOVER, PR_FALSE)) {
 	flags |= CKF_SIGN_RECOVER;
     }
     if (PK11_HasAttributeSet(slot, id, CKA_VERIFY, PR_FALSE)) {
 	flags |= CKF_VERIFY;
     }
     if (PK11_HasAttributeSet(slot, id, CKA_VERIFY_RECOVER, PR_FALSE)) {
 	flags |= CKF_VERIFY_RECOVER;
     }
     return flags;
 }
 static const char testString[] =
 	"My Encrytion Test Data (should be at least 32 bytes long)";
 /*
  * merge a secret key,
  *
  * Secret keys may collide by CKA_ID as we merge 2 token. If we collide
  * on the CKA_ID, we need to make sure we are dealing with different keys.
  * The reason for this is it is possible that we've merged this database
  * before, and this key could have been merged already.  If the keys are
  * the same, we are done. If they are not, we need to update the CKA_ID of
  * the source key and try again.
  *
  * Once we know we have a unique key to merge in, we use NSS's underlying
  * key Move function which will do a key exchange if necessary to move
  * the key from one token to another. Then we set the CKA_ID and additional
  * pkcs #11 attributes.
  */
 static SECStatus
 pk11_mergeSecretKey(PK11SlotInfo *targetSlot, PK11SlotInfo *sourceSlot,
 		CK_OBJECT_HANDLE id, void *targetPwArg, void *sourcePwArg)
 {
     PK11SymKey *sourceKey = NULL;
     PK11SymKey *targetKey = NULL;
     SECItem *sourceOutput = NULL;
     SECItem *targetOutput = NULL;
     SECItem *param = NULL;
     int blockSize;
     SECItem input;
     CK_OBJECT_HANDLE targetKeyID;
     CK_FLAGS flags;
     PLArenaPool *arena = NULL;
     SECStatus rv = SECSuccess;
     CK_MECHANISM_TYPE keyMechType, cryptoMechType;
     CK_KEY_TYPE sourceKeyType, targetKeyType;
     CK_ATTRIBUTE symTemplate[] = {
 	{ CKA_ID, NULL, 0 },
 	{ CKA_CLASS, NULL, 0 }
     };
     CK_ULONG symTemplateCount = sizeof(symTemplate)/sizeof(symTemplate[0]);
     CK_ATTRIBUTE symCopyTemplate[] = {
 	{ CKA_LABEL, NULL, 0 }
     };
     CK_ULONG symCopyTemplateCount =
 		sizeof(symCopyTemplate)/sizeof(symCopyTemplate[0]);
     arena = PORT_NewArena( DER_DEFAULT_CHUNKSIZE);
     if (arena == NULL) {
 	rv = SECFailure;
 	goto done;
     }
     sourceKeyType = PK11_ReadULongAttribute(sourceSlot, id, CKA_KEY_TYPE);
     if (sourceKeyType == (CK_ULONG) -1) {
 	rv = SECFailure;
 	goto done;
     }
     /* get the key mechanism */
     keyMechType = PK11_GetKeyMechanism(sourceKeyType);
     /* get a mechanism suitable to encryption.
      * PK11_GetKeyMechanism returns a mechanism that is unique to the key
      * type. It tries to return encryption/decryption mechanisms, however
      * CKM_DES3_CBC uses and abmiguous keyType, so keyMechType is returned as
      * 'keygen' mechanism. Detect that case here */
     cryptoMechType =  keyMechType;
     if ((keyMechType == CKM_DES3_KEY_GEN) ||
 				(keyMechType == CKM_DES2_KEY_GEN)) {
 	cryptoMechType = CKM_DES3_CBC;
     }
     sourceKey = PK11_SymKeyFromHandle(sourceSlot, NULL, PK11_OriginDerive,
 				keyMechType , id, PR_FALSE, sourcePwArg);
     if (sourceKey == NULL) {
 	rv = SECFailure;
 	goto done;
     }
     /* check to see a key with the same CKA_ID  already exists in
      * the target slot. If it does, then we need to verify if the keys
      * really matches. If they don't import the key with a new CKA_ID
      * value. */
     rv = pk11_matchAcrossTokens(arena, targetSlot, sourceSlot,
 			symTemplate, symTemplateCount, id, &targetKeyID);
     if (rv != SECSuccess) {
 	goto done;
     }
     /* set up the input test */
     input.data = (unsigned char *)testString;
     blockSize = PK11_GetBlockSize(cryptoMechType, NULL);
     if (blockSize < 0) {
 	rv = SECFailure;
 	goto done;
     }
     input.len = blockSize;
     if (input.len == 0) {
 	input.len = sizeof (testString);
     }
     while (targetKeyID != CK_INVALID_HANDLE) {
 	/* test to see if the keys are identical */
 	targetKeyType = PK11_ReadULongAttribute(sourceSlot, id, CKA_KEY_TYPE);
 	if (targetKeyType == sourceKeyType) {
 		/* same keyType  - see if it's the same key */
 		targetKey = PK11_SymKeyFromHandle(targetSlot, NULL,
 			PK11_OriginDerive, keyMechType, targetKeyID, PR_FALSE,
 			targetPwArg);
 		/* get a parameter if we don't already have one */
 		if (!param) {
 		    param = PK11_GenerateNewParam(cryptoMechType, sourceKey);
 		    if (param == NULL) {
 			rv = SECFailure;
 			goto done;
 		    }
 		}
 		/* use the source key to encrypt a reference */
 		if (!sourceOutput) {
 		    rv = pk11_encrypt(sourceKey, cryptoMechType, param, &input,
 			&sourceOutput);
 		    if (rv != SECSuccess) {
 			goto done;
 		    }
 		}
 		/* encrypt the reference with the target key */
 		rv = pk11_encrypt(targetKey, cryptoMechType, param, &input,
 			&targetOutput);
 		if (rv == SECSuccess) {
 		    if (SECITEM_ItemsAreEqual(sourceOutput, targetOutput)) {
 			/* they produce the same output, they must be the
 			 * same key */
 			goto done;
 		    }
 		    SECITEM_FreeItem(targetOutput, PR_TRUE);
 		    targetOutput = NULL;
 		}
 		PK11_FreeSymKey(targetKey);
 		targetKey = NULL;
 	}
 	/* keys aren't equal, update the KEY_ID and look again */
 	rv = pk11_incrementID(arena, &symTemplate[0]);
 	if (rv != SECSuccess) {
 	    goto done;
 	}
 	targetKeyID = pk11_FindObjectByTemplate(targetSlot,
 					symTemplate, symTemplateCount);
     }
     /* we didn't find a matching key, import this one with the new
      * CKAID */
     flags = pk11_getSecretKeyFlags(sourceSlot, id);
     targetKey = PK11_MoveSymKey(targetSlot, PK11_OriginDerive, flags, PR_TRUE,
 			sourceKey);
     if (targetKey == NULL) {
 	rv = SECFailure;
 	goto done;
     }
     /* set the key new CKAID */
     rv = pk11_setAttributes(targetSlot, targetKey->objectID, symTemplate, 1);
     if (rv != SECSuccess) {
 	goto done;
     }
     /* fill in remaining attributes */
     rv = pk11_copyAttributes(arena, targetSlot, targetKey->objectID,
 			sourceSlot, id, symCopyTemplate, symCopyTemplateCount);
 done:
     if (sourceKey) {
 	PK11_FreeSymKey(sourceKey);
     }
     if (targetKey) {
 	PK11_FreeSymKey(targetKey);
     }
     if (sourceOutput) {
 	SECITEM_FreeItem(sourceOutput, PR_TRUE);
     }
     if (targetOutput) {
 	SECITEM_FreeItem(targetOutput, PR_TRUE);
     }
     if (param) {
 	SECITEM_FreeItem(param, PR_TRUE);
     }
     if (arena) {
          PORT_FreeArena(arena,PR_FALSE);
     }
     return rv;
 }
 /*************************************************************************
  *
  *            Public Keys
  *
  *************************************************************************/
 /*
  * Merge public key
  *
  * Use the high level NSS calls to extract the public key and import it
  * into the token. Extra attributes are then copied to the new token.
  */
 static SECStatus
 pk11_mergePublicKey(PK11SlotInfo *targetSlot, PK11SlotInfo *sourceSlot,
 		CK_OBJECT_HANDLE id, void *targetPwArg, void *sourcePwArg)
 {
     SECKEYPublicKey *sourceKey = NULL;
     CK_OBJECT_HANDLE targetKeyID;
     PLArenaPool *arena = NULL;
     SECStatus rv = SECSuccess;
     CK_ATTRIBUTE pubTemplate[] = {
 	{ CKA_ID, NULL, 0 },
 	{ CKA_CLASS, NULL, 0 }
     };
     CK_ULONG pubTemplateCount = sizeof(pubTemplate)/sizeof(pubTemplate[0]);
     CK_ATTRIBUTE pubCopyTemplate[] = {
 	{ CKA_ID, NULL, 0 },
 	{ CKA_LABEL, NULL, 0 },
 	{ CKA_SUBJECT, NULL, 0 }
     };
     CK_ULONG pubCopyTemplateCount =
 		sizeof(pubCopyTemplate)/sizeof(pubCopyTemplate[0]);
     arena = PORT_NewArena( DER_DEFAULT_CHUNKSIZE);
     if (arena == NULL) {
 	rv = SECFailure;
 	goto done;
     }
     /* check to see if the key is already in the target slot */
     rv = pk11_matchAcrossTokens(arena, targetSlot, sourceSlot, pubTemplate,
 				pubTemplateCount, id, &targetKeyID);
     if (rv != SECSuccess) {
 	goto done;
     }
     /* Key is already in the target slot */
     if (targetKeyID != CK_INVALID_HANDLE) {
 	/* not an error ... */
 	goto done;
     }
     /* fetch an NSS representation of the public key */
     sourceKey = PK11_ExtractPublicKey(sourceSlot, nullKey, id);
     if (sourceKey== NULL) {
 	rv = SECFailure;
 	goto done;
     }
     /* load the public key into the target token. */
     targetKeyID = PK11_ImportPublicKey(targetSlot, sourceKey, PR_TRUE);
     if (targetKeyID == CK_INVALID_HANDLE) {
 	rv = SECFailure;
 	goto done;
     }
     /* fill in remaining attributes */
     rv = pk11_copyAttributes(arena, targetSlot, targetKeyID, sourceSlot, id,
 				pubCopyTemplate, pubCopyTemplateCount);
 done:
     if (sourceKey) {
 	SECKEY_DestroyPublicKey(sourceKey);
     }
     if (arena) {
          PORT_FreeArena(arena,PR_FALSE);
     }
     return rv;
 }
 /*************************************************************************
  *
  *            Certificates
  *
  *************************************************************************/
 /*
  * Two copies of the source code for this algorithm exist in NSS.
  * Changes must be made in both copies.
  * The other copy is in sftkdb_resolveConflicts() in softoken/sftkdb.c.
  */
 static char *
 pk11_IncrementNickname(char *nickname)
 {
     char *newNickname = NULL;
     int end;
     int digit;
     int len = strlen(nickname);
     /* does nickname end with " #n*" ? */
     for (end = len - 1;
          end >= 2 && (digit = nickname[end]) <= '9' &&  digit >= '0';
 	 end--)  /* just scan */ ;
     if (len >= 3 &&
         end < (len - 1) /* at least one digit */ &&
 	nickname[end]     == '#'  &&
 	nickname[end - 1] == ' ') {
     	/* Already has a suitable suffix string */
     } else {
 	/* ... append " #2" to the name */
 	static const char num2[] = " #2";
 	newNickname = PORT_Realloc(nickname, len + sizeof(num2));
 	if (newNickname) {
 	    PORT_Strcat(newNickname, num2);
 	} else {
 	    PORT_Free(nickname);
 	}
 	return newNickname;
     }
     for (end = len - 1;
 	 end >= 0 && (digit = nickname[end]) <= '9' &&  digit >= '0';
 	 end--) {
 	if (digit < '9') {
 	    nickname[end]++;
 	    return nickname;
 	}
 	nickname[end] = '0';
     }
     /* we overflowed, insert a new '1' for a carry in front of the number */
     newNickname = PORT_Realloc(nickname, len + 2);
     if (newNickname) {
 	newNickname[++end] = '1';
 	PORT_Memset(&newNickname[end + 1], '0', len - end);
 	newNickname[len + 1] = 0;
     } else {
 	PORT_Free(nickname);
     }
     return newNickname;
 }
 /*
  * merge a certificate object
  *
  * Use the high level NSS calls to extract and import the certificate.
  */
 static SECStatus
 pk11_mergeCert(PK11SlotInfo *targetSlot, PK11SlotInfo *sourceSlot,
 		CK_OBJECT_HANDLE id, void *targetPwArg, void *sourcePwArg)
 {
     CERTCertificate *sourceCert = NULL;
     CK_OBJECT_HANDLE targetCertID = CK_INVALID_HANDLE;
     char *nickname = NULL;
     SECStatus rv = SECSuccess;
     PLArenaPool *arena = NULL;
     CK_ATTRIBUTE sourceCKAID = {CKA_ID, NULL, 0};
     CK_ATTRIBUTE targetCKAID = {CKA_ID, NULL, 0};
     SECStatus lrv = SECSuccess;
     int error;
     sourceCert = PK11_MakeCertFromHandle(sourceSlot, id, NULL);
     if (sourceCert == NULL) {
 	rv = SECFailure;
 	goto done;
     }
     nickname = PK11_GetObjectNickname(sourceSlot, id);
     /* The database code will prevent nickname collisions for certs with
      * different subjects. This code will prevent us from getting
      * actual import errors */
     if (nickname) {
 	const char *tokenName = PK11_GetTokenName(targetSlot);
 	char *tokenNickname = NULL;
 	do {
 	    tokenNickname = PR_smprintf("%s:%s",tokenName, nickname);
 	    if (!tokenNickname) {
 		break;
 	    }
 	    if (!SEC_CertNicknameConflict(tokenNickname,
 			&sourceCert->derSubject, CERT_GetDefaultCertDB())) {
 		break;
 	     }
 	    nickname = pk11_IncrementNickname(nickname);
 	    if (!nickname) {
 		break;
 	    }
 	    PR_smprintf_free(tokenNickname);
 	} while (1);
 	if (tokenNickname) {
 	    PR_smprintf_free(tokenNickname);
 	}
     }
     /* see if the cert is already there */
     targetCertID = PK11_FindCertInSlot(targetSlot, sourceCert, targetPwArg);
     if (targetCertID == CK_INVALID_HANDLE) {
 	/* cert doesn't exist load the cert in. */
 	/* OK for the nickname to be NULL, not all certs have nicknames */
 	rv = PK11_ImportCert(targetSlot, sourceCert, CK_INVALID_HANDLE,
 			     nickname, PR_FALSE);
 	goto done;
     }
     /* the cert already exists, see if the nickname and/or  CKA_ID need
      * to be updated */
     arena = PORT_NewArena( DER_DEFAULT_CHUNKSIZE);
     if (arena == NULL) {
 	rv = SECFailure;
 	goto done;
     }
     /* does our source have a CKA_ID ? */
     rv = PK11_GetAttributes(arena, sourceSlot, id,  &sourceCKAID, 1);
     if (rv != SECSuccess) {
 	sourceCKAID.ulValueLen = 0;
     }
     /* if we have a source CKA_ID, see of we need to update the
      * target's CKA_ID */
     if (sourceCKAID.ulValueLen != 0) {
 	rv = PK11_GetAttributes(arena, targetSlot, targetCertID,
 				    &targetCKAID, 1);
 	if (rv != SECSuccess) {
 	    targetCKAID.ulValueLen = 0;
 	}
 	/* if the target has no CKA_ID, update it from the source */
 	if (targetCKAID.ulValueLen == 0) {
 	    lrv=pk11_setAttributes(targetSlot, targetCertID, &sourceCKAID, 1);
 	    if (lrv != SECSuccess) {
 		error = PORT_GetError();
 	    }
 	}
     }
     rv = SECSuccess;
     /* now check if we need to update the nickname */
     if (nickname && *nickname) {
 	char *targetname;
 	targetname = PK11_GetObjectNickname(targetSlot, targetCertID);
 	if (!targetname || !*targetname) {
 	    /* target has no nickname, or it's empty, update it */
 	    rv = PK11_SetObjectNickname(targetSlot, targetCertID, nickname);
 	}
 	if (targetname) {
 	    PORT_Free(targetname);
 	}
     }
     /* restore the error code if CKA_ID failed, but nickname didn't */
     if ((rv == SECSuccess) && (lrv != SECSuccess)) {
 	rv = lrv;
 	PORT_SetError(error);
     }
 done:
     if (nickname) {
 	PORT_Free(nickname);
     }
     if (sourceCert) {
 	CERT_DestroyCertificate(sourceCert);
     }
     if (arena) {
          PORT_FreeArena(arena,PR_FALSE);
     }
     return rv;
 }
 /*************************************************************************
  *
  *            Crls
  *
  *************************************************************************/
 /*
  * Use the raw PKCS #11 interface to merge the CRLs.
  *
  * In the case where of collision, choose the newest CRL that is valid.
  */
 static SECStatus
 pk11_mergeCrl(PK11SlotInfo *targetSlot, PK11SlotInfo *sourceSlot,
 		CK_OBJECT_HANDLE id, void *targetPwArg, void *sourcePwArg)
 {
     CK_OBJECT_HANDLE targetCrlID;
     PLArenaPool *arena = NULL;
     SECStatus rv = SECSuccess;
     CK_ATTRIBUTE crlTemplate[] = {
 	{ CKA_SUBJECT, NULL, 0 },
 	{ CKA_CLASS, NULL, 0 },
 	{ CKA_NSS_KRL, NULL, 0 }
     };
     CK_ULONG crlTemplateCount = sizeof(crlTemplate)/sizeof(crlTemplate[0]);
     CK_ATTRIBUTE crlCopyTemplate[] = {
 	{ CKA_CLASS, NULL, 0 },
 	{ CKA_TOKEN, NULL, 0 },
 	{ CKA_LABEL, NULL, 0 },
 	{ CKA_PRIVATE, NULL, 0 },
 	{ CKA_MODIFIABLE, NULL, 0 },
 	{ CKA_SUBJECT, NULL, 0 },
 	{ CKA_NSS_KRL, NULL, 0 },
 	{ CKA_NSS_URL, NULL, 0 },
 	{ CKA_VALUE, NULL, 0 }
     };
     CK_ULONG crlCopyTemplateCount =
 		sizeof(crlCopyTemplate)/sizeof(crlCopyTemplate[0]);
     arena = PORT_NewArena( DER_DEFAULT_CHUNKSIZE);
     if (arena == NULL) {
 	rv = SECFailure;
 	goto done;
     }
     /* check to see if the crl is already in the target slot */
     rv = pk11_matchAcrossTokens(arena, targetSlot, sourceSlot, crlTemplate,
 				crlTemplateCount, id, &targetCrlID);
     if (rv != SECSuccess) {
 	goto done;
     }
     if (targetCrlID != CK_INVALID_HANDLE) {
 	/* we already have a CRL, check to see which is more up-to-date. */
 	goto done;
     }
     /* load the CRL into the target token. */
     rv = pk11_copyAttributes(arena, targetSlot, targetCrlID, sourceSlot, id,
 				crlCopyTemplate, crlCopyTemplateCount);
 done:
     if (arena) {
          PORT_FreeArena(arena,PR_FALSE);
     }
     return rv;
 }
 /*************************************************************************
  *
  *            SMIME objects
  *
  *************************************************************************/
 /*
  * use the raw PKCS #11 interface to merge the S/MIME records
  */
 static SECStatus
 pk11_mergeSmime(PK11SlotInfo *targetSlot, PK11SlotInfo *sourceSlot,
 		CK_OBJECT_HANDLE id, void *targetPwArg, void *sourcePwArg)
 {
     CK_OBJECT_HANDLE targetSmimeID;
     PLArenaPool *arena = NULL;
     SECStatus rv = SECSuccess;
     CK_ATTRIBUTE smimeTemplate[] = {
 	{ CKA_SUBJECT, NULL, 0 },
 	{ CKA_NSS_EMAIL, NULL, 0 },
 	{ CKA_CLASS, NULL, 0 },
     };
     CK_ULONG smimeTemplateCount =
 		sizeof(smimeTemplate)/sizeof(smimeTemplate[0]);
     CK_ATTRIBUTE smimeCopyTemplate[] = {
 	{ CKA_CLASS, NULL, 0 },
 	{ CKA_TOKEN, NULL, 0 },
 	{ CKA_LABEL, NULL, 0 },
 	{ CKA_PRIVATE, NULL, 0 },
 	{ CKA_MODIFIABLE, NULL, 0 },
 	{ CKA_SUBJECT, NULL, 0 },
 	{ CKA_NSS_EMAIL, NULL, 0 },
 	{ CKA_NSS_SMIME_TIMESTAMP, NULL, 0 },
 	{ CKA_VALUE, NULL, 0 }
     };
     CK_ULONG smimeCopyTemplateCount =
 		sizeof(smimeCopyTemplate)/sizeof(smimeCopyTemplate[0]);
     arena = PORT_NewArena( DER_DEFAULT_CHUNKSIZE);
     if (arena == NULL) {
 	rv = SECFailure;
 	goto done;
     }
     /* check to see if the crl is already in the target slot */
     rv = pk11_matchAcrossTokens(arena, targetSlot, sourceSlot, smimeTemplate,
 				smimeTemplateCount, id, &targetSmimeID);
     if (rv != SECSuccess) {
 	goto done;
     }
     if (targetSmimeID != CK_INVALID_HANDLE) {
 	/* we already have a SMIME record */
 	goto done;
     }
     /* load the SMime Record into the target token. */
     rv = pk11_copyAttributes(arena, targetSlot, targetSmimeID, sourceSlot, id,
 				smimeCopyTemplate, smimeCopyTemplateCount);
 done:
     if (arena) {
          PORT_FreeArena(arena,PR_FALSE);
     }
     return rv;
 }
 /*************************************************************************
  *
  *            Trust Objects
  *
  *************************************************************************/
 /*
  * decide which trust record entry wins. PR_TRUE (source) or PR_FALSE (target)
  */
 #define USE_TARGET PR_FALSE
 #define USE_SOURCE PR_TRUE
 PRBool
 pk11_mergeTrustEntry(CK_ATTRIBUTE *target, CK_ATTRIBUTE *source)
 {
     CK_ULONG targetTrust = (target->ulValueLen == sizeof (CK_LONG)) ?
 		*(CK_ULONG *)target->pValue : CKT_NSS_TRUST_UNKNOWN;
     CK_ULONG sourceTrust = (source->ulValueLen == sizeof (CK_LONG)) ?
 		*(CK_ULONG *)source->pValue : CKT_NSS_TRUST_UNKNOWN;
     /*
      * Examine a single entry and deside if the source or target version
      * should win out. When all the entries have been checked, if there is
      * any case we need to update, we will write the whole source record
      * to the target database. That means for each individual record, if the
      * target wins, we need to update the source (in case later we have a
      * case where the source wins). If the source wins, it already
      */
     if (sourceTrust == targetTrust) {
 	return USE_TARGET;  /* which equates to 'do nothing' */
     }
     if (sourceTrust == CKT_NSS_TRUST_UNKNOWN) {
 	return USE_TARGET;
     }
     /* target has no idea, use the source's idea of the trust value */
     if (targetTrust == CKT_NSS_TRUST_UNKNOWN) {
 	/* source overwrites the target */
 	return USE_SOURCE;
     }
     /* so both the target and the source have some idea of what this
      * trust attribute should be, and neither agree exactly.
      * At this point, we prefer 'hard' attributes over 'soft' ones.
      * 'hard' ones are CKT_NSS_TRUSTED, CKT_NSS_TRUSTED_DELEGATOR, and
      * CKT_NSS_UNTRUTED. Soft ones are ones which don't change the
      * actual trust of the cert (CKT_MUST_VERIFY, CKT_NSS_VALID,
      * CKT_NSS_VALID_DELEGATOR).
      */
     if ((sourceTrust == CKT_NSS_MUST_VERIFY_TRUST)
 	|| (sourceTrust == CKT_NSS_VALID_DELEGATOR)) {
 	return USE_TARGET;
     }
     if ((targetTrust == CKT_NSS_MUST_VERIFY_TRUST)
 	|| (targetTrust == CKT_NSS_VALID_DELEGATOR)) {
 	/* source overrites the target */
 	return USE_SOURCE;
     }
     /* both have hard attributes, we have a conflict, let the target win. */
     return USE_TARGET;
 }
 /*
  * use the raw PKCS #11 interface to merge the S/MIME records
  */
 static SECStatus
 pk11_mergeTrust(PK11SlotInfo *targetSlot, PK11SlotInfo *sourceSlot,
 		CK_OBJECT_HANDLE id, void *targetPwArg, void *sourcePwArg)
 {
     CK_OBJECT_HANDLE targetTrustID;
     PLArenaPool *arena = NULL;
     SECStatus rv = SECSuccess;
     int error = 0;
     CK_ATTRIBUTE trustTemplate[] = {
 	{ CKA_ISSUER, NULL, 0 },
 	{ CKA_SERIAL_NUMBER, NULL, 0 },
 	{ CKA_CLASS, NULL, 0 },
     };
     CK_ULONG trustTemplateCount =
 		sizeof(trustTemplate)/sizeof(trustTemplate[0]);
     CK_ATTRIBUTE trustCopyTemplate[] = {
 	{ CKA_CLASS, NULL, 0 },
 	{ CKA_TOKEN, NULL, 0 },
 	{ CKA_LABEL, NULL, 0 },
 	{ CKA_PRIVATE, NULL, 0 },
 	{ CKA_MODIFIABLE, NULL, 0 },
 	{ CKA_ISSUER, NULL, 0},
 	{ CKA_SERIAL_NUMBER, NULL, 0},
 	{ CKA_CERT_SHA1_HASH, NULL, 0 },
 	{ CKA_CERT_MD5_HASH, NULL, 0 },
 	{ CKA_TRUST_SERVER_AUTH, NULL, 0 },
 	{ CKA_TRUST_CLIENT_AUTH, NULL, 0 },
 	{ CKA_TRUST_CODE_SIGNING, NULL, 0 },
 	{ CKA_TRUST_EMAIL_PROTECTION, NULL, 0 },
 	{ CKA_TRUST_STEP_UP_APPROVED, NULL, 0 }
     };
     CK_ULONG trustCopyTemplateCount =
 		sizeof(trustCopyTemplate)/sizeof(trustCopyTemplate[0]);
     arena = PORT_NewArena( DER_DEFAULT_CHUNKSIZE);
     if (arena == NULL) {
 	rv = SECFailure;
 	goto done;
     }
     /* check to see if the crl is already in the target slot */
     rv = pk11_matchAcrossTokens(arena, targetSlot, sourceSlot, trustTemplate,
 				trustTemplateCount, id, &targetTrustID);
     if (rv != SECSuccess) {
 	goto done;
     }
     if (targetTrustID != CK_INVALID_HANDLE) {
 	/* a matching trust record already exists, merge it in */
 	CK_ATTRIBUTE_TYPE trustAttrs[] = {
 	    CKA_TRUST_SERVER_AUTH, CKA_TRUST_CLIENT_AUTH,
 	    CKA_TRUST_CODE_SIGNING, CKA_TRUST_EMAIL_PROTECTION,
 	    CKA_TRUST_IPSEC_TUNNEL, CKA_TRUST_IPSEC_USER,
 	    CKA_TRUST_TIME_STAMPING
 	};
 	CK_ULONG trustAttrsCount =
 		sizeof(trustAttrs)/sizeof(trustAttrs[0]);
 	CK_ULONG i;
 	CK_ATTRIBUTE targetTemplate, sourceTemplate;
 	/* existing trust record, merge the two together */
         for (i=0; i < trustAttrsCount; i++) {
 	    targetTemplate.type = sourceTemplate.type = trustAttrs[i];
 	    targetTemplate.pValue = sourceTemplate.pValue = NULL;
 	    targetTemplate.ulValueLen = sourceTemplate.ulValueLen = 0;
 	    PK11_GetAttributes(arena, sourceSlot, id, &sourceTemplate, 1);
 	    PK11_GetAttributes(arena, targetSlot, targetTrustID,
 							&targetTemplate, 1);
 	    if (pk11_mergeTrustEntry(&targetTemplate, &sourceTemplate)) {
 		/* source wins, write out the source attribute to the target */
 		SECStatus lrv = pk11_setAttributes(targetSlot, targetTrustID,
 				   &sourceTemplate, 1);
 		if (lrv != SECSuccess) {
 		    rv = SECFailure;
 		    error = PORT_GetError();
 		}
 	    }
 	}
 	/* handle step */
 	sourceTemplate.type = CKA_TRUST_STEP_UP_APPROVED;
 	sourceTemplate.pValue = NULL;
 	sourceTemplate.ulValueLen = 0;
 	/* if the source has steup set, then set it in the target */
 	PK11_GetAttributes(arena, sourceSlot, id, &sourceTemplate, 1);
 	if ((sourceTemplate.ulValueLen == sizeof(CK_BBOOL)) &&
 		(sourceTemplate.pValue) &&
 		(*(CK_BBOOL *)sourceTemplate.pValue == CK_TRUE)) {
 	    SECStatus lrv = pk11_setAttributes(targetSlot, targetTrustID,
 				   &sourceTemplate, 1);
 	    if (lrv != SECSuccess) {
 		rv = SECFailure;
 		error = PORT_GetError();
 	    }
 	}
 	goto done;
     }
     /* load the new trust Record into the target token. */
     rv = pk11_copyAttributes(arena, targetSlot, targetTrustID, sourceSlot, id,
 				trustCopyTemplate, trustCopyTemplateCount);
 done:
     if (arena) {
          PORT_FreeArena(arena,PR_FALSE);
     }
     /* restore the error code */
     if (rv == SECFailure && error) {
 	PORT_SetError(error);
     }
     return rv;
 }
 /*************************************************************************
  *
  *            Central merge code
  *
  *************************************************************************/
 /*
  * merge a single object from sourceToken to targetToken
  */
 static SECStatus
 pk11_mergeObject(PK11SlotInfo *targetSlot, PK11SlotInfo *sourceSlot,
 		CK_OBJECT_HANDLE id, void *targetPwArg, void *sourcePwArg)
 {
     CK_OBJECT_CLASS objClass;
     objClass = PK11_ReadULongAttribute(sourceSlot, id, CKA_CLASS);
     if (objClass == (CK_ULONG) -1) {
 	PORT_SetError( SEC_ERROR_UNKNOWN_OBJECT_TYPE );
 	return SECFailure;
     }
     switch (objClass) {
     case CKO_CERTIFICATE:
 	return pk11_mergeCert(targetSlot, sourceSlot, id,
 					targetPwArg, sourcePwArg);
     case CKO_NSS_TRUST:
 	return pk11_mergeTrust(targetSlot, sourceSlot, id,
 					targetPwArg, sourcePwArg);
     case CKO_PUBLIC_KEY:
 	return pk11_mergePublicKey(targetSlot, sourceSlot, id,
 					targetPwArg, sourcePwArg);
     case CKO_PRIVATE_KEY:
 	return pk11_mergePrivateKey(targetSlot, sourceSlot, id,
 					targetPwArg, sourcePwArg);
     case CKO_SECRET_KEY:
 	return pk11_mergeSecretKey(targetSlot, sourceSlot, id,
 					targetPwArg, sourcePwArg);
     case CKO_NSS_CRL:
 	return pk11_mergeCrl(targetSlot, sourceSlot, id,
 					targetPwArg, sourcePwArg);
     case CKO_NSS_SMIME:
 	return pk11_mergeSmime(targetSlot, sourceSlot, id,
 					targetPwArg, sourcePwArg);
     default:
 	break;
     }
     PORT_SetError( SEC_ERROR_UNKNOWN_OBJECT_TYPE );
     return SECFailure;
 }
 PK11MergeLogNode *
 pk11_newMergeLogNode(PLArenaPool *arena,
 		     PK11SlotInfo *slot, CK_OBJECT_HANDLE id, int error)
 {
     PK11MergeLogNode *newLog;
     PK11GenericObject *obj;
     newLog = PORT_ArenaZNew(arena, PK11MergeLogNode);
     if (newLog == NULL) {
 	return NULL;
     }
     obj = PORT_ArenaZNew(arena, PK11GenericObject);
     if ( !obj ) {
 	return NULL;
     }
     /* initialize it */
     obj->slot = slot;
     obj->objectID = id;
     newLog->object= obj;
     newLog->error = error;
     return newLog;
 }
 /*
  * walk down each entry and merge it. keep track of the errors in the log
  */
 static SECStatus
 pk11_mergeByObjectIDs(PK11SlotInfo *targetSlot, PK11SlotInfo *sourceSlot,
 		CK_OBJECT_HANDLE *objectIDs, int count,
 		PK11MergeLog *log, void *targetPwArg, void *sourcePwArg)
 {
     SECStatus rv = SECSuccess;
     int error, i;
     for (i=0; i < count; i++) {
 	/* try to update the entire database. On failure, keep going,
 	 * but remember the error to report back to the caller */
 	SECStatus lrv;
 	PK11MergeLogNode *newLog;
 	lrv= pk11_mergeObject(targetSlot, sourceSlot, objectIDs[i],
 				targetPwArg, sourcePwArg);
 	if (lrv == SECSuccess) {
 	   /* merged with no problem, go to next object */
 	   continue;
 	}
 	/* remember that we failed and why */
 	rv = SECFailure;
 	error = PORT_GetError();
 	/* log the errors */
 	if (!log) {
 	    /* not logging, go to next entry */
 	    continue;
 	}
 	newLog = pk11_newMergeLogNode(log->arena, sourceSlot,
 				      objectIDs[i], error);
 	if (!newLog) {
 	    /* failed to allocate entry, just keep going */
 	    continue;
 	}
 	/* link in the errorlog entry */
 	newLog->next = NULL;
 	if (log->tail) {
 	    log->tail->next = newLog;
 	} else {
 	    log->head = newLog;
 	}
 	newLog->prev = log->tail;
 	log->tail = newLog;
     }
     /* restore the last error code */
     if (rv != SECSuccess) {
 	PORT_SetError(error);
     }
     return rv;
 }
 /*
  * Merge all the records in sourceSlot that aren't in targetSlot
  *
  *   This function will return failure if not all the objects
  *   successfully merged.
  *
  *   Applications can pass in an optional error log which will record
  *   each failing object and why it failed to import. PK11MergeLog
  *   is modelled after the CERTVerifyLog.
  */
 SECStatus
 PK11_MergeTokens(PK11SlotInfo *targetSlot, PK11SlotInfo *sourceSlot,
 		PK11MergeLog *log, void *targetPwArg, void *sourcePwArg)
 {
     SECStatus rv = SECSuccess, lrv = SECSuccess;
     int error, count = 0;
     CK_ATTRIBUTE search[2];
     CK_OBJECT_HANDLE *objectIDs = NULL;
     CK_BBOOL ck_true = CK_TRUE;
     CK_OBJECT_CLASS privKey = CKO_PRIVATE_KEY;
     PK11_SETATTRS(&search[0], CKA_TOKEN, &ck_true, sizeof(ck_true));
     PK11_SETATTRS(&search[1], CKA_CLASS, &privKey, sizeof(privKey));
     /*
      * make sure both tokens are already authenticated if need be.
      */
     rv = PK11_Authenticate(targetSlot, PR_TRUE, targetPwArg);
     if (rv != SECSuccess) {
 	goto loser;
     }
     rv = PK11_Authenticate(sourceSlot, PR_TRUE, sourcePwArg);
     if (rv != SECSuccess) {
 	goto loser;
     }
     /* turns out the old DB's are rather fragile if the private keys aren't
      * merged in first, so do the private keys explicity. */
     objectIDs = pk11_FindObjectsByTemplate(sourceSlot, search, 2, &count);
     if (objectIDs) {
 	lrv = pk11_mergeByObjectIDs(targetSlot, sourceSlot,
 				    objectIDs, count, log,
 				    targetPwArg, sourcePwArg);
 	if (lrv != SECSuccess) {
 	    error = PORT_GetError();
 	}
 	PORT_Free(objectIDs);
 	count = 0;
     }
     /* now do the rest  (NOTE: this will repeat the private keys, but
      * that shouldnt' be an issue as we will notice they are already
      * merged in */
     objectIDs = pk11_FindObjectsByTemplate(sourceSlot, search, 1, &count);
     if (!objectIDs) {
 	rv = SECFailure;
 	goto loser;
     }
     rv = pk11_mergeByObjectIDs(targetSlot, sourceSlot, objectIDs, count, log,
 			targetPwArg, sourcePwArg);
     if (rv == SECSuccess) {
 	/* if private keys failed, but the rest succeeded, be sure to let
 	 * the caller know that private keys failed and why.
 	 * NOTE: this is highly unlikely since the same keys that failed
 	 * in the previous merge call will most likely fail in this one */
 	if (lrv != SECSuccess) {
 	    rv = lrv;
 	    PORT_SetError(error);
 	}
     }
 loser:
     if (objectIDs) {
 	PORT_Free(objectIDs);
     }
     return rv;
 }
 PK11MergeLog *
 PK11_CreateMergeLog(void)
 {
     PLArenaPool *arena;
     PK11MergeLog *log;
     arena = PORT_NewArena( DER_DEFAULT_CHUNKSIZE);
     if (arena == NULL) {
 	return NULL;
     }
     log = PORT_ArenaZNew(arena, PK11MergeLog);
     if (log == NULL) {
          PORT_FreeArena(arena,PR_FALSE);
 	return NULL;
     }
     log->arena = arena;
     log->version = 1;
     return log;
 }
 void
 PK11_DestroyMergeLog(PK11MergeLog *log)
 {
    if (log && log->arena) {
 	PORT_FreeArena(log->arena, PR_FALSE);
     }
 }

The Tor Browser / annotate

security/nss/lib/pk11wrap/pk11merge.c@6474c204b198 (annotated)

security/nss/lib/pk11wrap/pk11merge.c