Change the NSS and NSPR source tree to the new directory structure to be

mozilla/security/nss/lib/pk11wrap/pk11slot.c

Index: mozilla/security/nss/lib/pk11wrap/pk11slot.c
===================================================================
--- mozilla/security/nss/lib/pk11wrap/pk11slot.c	(revision 191424)
+++ mozilla/security/nss/lib/pk11wrap/pk11slot.c	(working copy)
@@ -1,2393 +0,0 @@
-/* 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/. */
-/*
- * Deal with PKCS #11 Slots.
- */
-#include "seccomon.h"
-#include "secmod.h"
-#include "nssilock.h"
-#include "secmodi.h"
-#include "secmodti.h"
-#include "pkcs11t.h"
-#include "pk11func.h"
-#include "secitem.h"
-#include "secerr.h"
-
-#include "dev.h" 
-#include "dev3hack.h" 
-#include "pkim.h"
-#include "utilpars.h"
-
-
-/*************************************************************
- * local static and global data
- *************************************************************/
-
-/*
- * This array helps parsing between names, mechanisms, and flags.
- * to make the config files understand more entries, add them
- * to this table.
- */
-PK11DefaultArrayEntry PK11_DefaultArray[] = {
-	{ "RSA", SECMOD_RSA_FLAG, CKM_RSA_PKCS },
-	{ "DSA", SECMOD_DSA_FLAG, CKM_DSA },
-	{ "DH", SECMOD_DH_FLAG, CKM_DH_PKCS_DERIVE },
-	{ "RC2", SECMOD_RC2_FLAG, CKM_RC2_CBC },
-	{ "RC4", SECMOD_RC4_FLAG, CKM_RC4 },
-	{ "DES", SECMOD_DES_FLAG, CKM_DES_CBC },
-	{ "AES", SECMOD_AES_FLAG, CKM_AES_CBC },
-	{ "Camellia", SECMOD_CAMELLIA_FLAG, CKM_CAMELLIA_CBC },
-	{ "SEED", SECMOD_SEED_FLAG, CKM_SEED_CBC },
-	{ "RC5", SECMOD_RC5_FLAG, CKM_RC5_CBC },
-	{ "SHA-1", SECMOD_SHA1_FLAG, CKM_SHA_1 },
-/*	{ "SHA224", SECMOD_SHA256_FLAG, CKM_SHA224 }, */
-	{ "SHA256", SECMOD_SHA256_FLAG, CKM_SHA256 },
-/*	{ "SHA384", SECMOD_SHA512_FLAG, CKM_SHA384 }, */
-	{ "SHA512", SECMOD_SHA512_FLAG, CKM_SHA512 },
-	{ "MD5", SECMOD_MD5_FLAG, CKM_MD5 },
-	{ "MD2", SECMOD_MD2_FLAG, CKM_MD2 },
-	{ "SSL", SECMOD_SSL_FLAG, CKM_SSL3_PRE_MASTER_KEY_GEN },
-	{ "TLS", SECMOD_TLS_FLAG, CKM_TLS_MASTER_KEY_DERIVE },
-	{ "SKIPJACK", SECMOD_FORTEZZA_FLAG, CKM_SKIPJACK_CBC64 },
-	{ "Publicly-readable certs", SECMOD_FRIENDLY_FLAG, CKM_INVALID_MECHANISM },
-	{ "Random Num Generator", SECMOD_RANDOM_FLAG, CKM_FAKE_RANDOM },
-};
-const int num_pk11_default_mechanisms = 
-                sizeof(PK11_DefaultArray) / sizeof(PK11_DefaultArray[0]);
-
-PK11DefaultArrayEntry *
-PK11_GetDefaultArray(int *size)
-{
-    if (size) {
-	*size = num_pk11_default_mechanisms;
-    }
-    return PK11_DefaultArray;
-}
-
-/*
- * These  slotlists are lists of modules which provide default support for
- *  a given algorithm or mechanism.
- */
-static PK11SlotList 
-    pk11_seedSlotList,
-    pk11_camelliaSlotList,
-    pk11_aesSlotList,
-    pk11_desSlotList,
-    pk11_rc4SlotList,
-    pk11_rc2SlotList,
-    pk11_rc5SlotList,
-    pk11_sha1SlotList,
-    pk11_md5SlotList,
-    pk11_md2SlotList,
-    pk11_rsaSlotList,
-    pk11_dsaSlotList,
-    pk11_dhSlotList,
-    pk11_ecSlotList,
-    pk11_ideaSlotList,
-    pk11_sslSlotList,
-    pk11_tlsSlotList,
-    pk11_randomSlotList,
-    pk11_sha256SlotList,
-    pk11_sha512SlotList;	/* slots do SHA512 and SHA384 */
-
-/************************************************************
- * Generic Slot List and Slot List element manipulations
- ************************************************************/
-
-/*
- * allocate a new list 
- */
-PK11SlotList *
-PK11_NewSlotList(void)
-{
-    PK11SlotList *list;
- 
-    list = (PK11SlotList *)PORT_Alloc(sizeof(PK11SlotList));
-    if (list == NULL) return NULL;
-    list->head = NULL;
-    list->tail = NULL;
-    list->lock = PZ_NewLock(nssILockList);
-    if (list->lock == NULL) {
-	PORT_Free(list);
-	return NULL;
-    }
-
-    return list;
-}
-
-/*
- * free a list element when all the references go away.
- */
-SECStatus
-PK11_FreeSlotListElement(PK11SlotList *list, PK11SlotListElement *le)
-{
-    PRBool freeit = PR_FALSE;
-
-    if (list == NULL || le == NULL) {
-	PORT_SetError(SEC_ERROR_INVALID_ARGS);
-	return SECFailure;
-    }
-
-    PZ_Lock(list->lock);
-    if (le->refCount-- == 1) {
-	freeit = PR_TRUE;
-    }
-    PZ_Unlock(list->lock);
-    if (freeit) {
-    	PK11_FreeSlot(le->slot);
-	PORT_Free(le);
-    }
-    return SECSuccess;
-}
-
-static void
-pk11_FreeSlotListStatic(PK11SlotList *list)
-{
-    PK11SlotListElement *le, *next ;
-    if (list == NULL) return;
-
-    for (le = list->head ; le; le = next) {
-	next = le->next;
-	PK11_FreeSlotListElement(list,le);
-    }
-    if (list->lock) {
-    	PZ_DestroyLock(list->lock);
-    }
-    list->lock = NULL;
-    list->head = NULL;
-}
-
-/*
- * if we are freeing the list, we must be the only ones with a pointer
- * to the list.
- */
-void
-PK11_FreeSlotList(PK11SlotList *list)
-{
-    pk11_FreeSlotListStatic(list);
-    PORT_Free(list);
-}
-
-/*
- * add a slot to a list
- * "slot" is the slot to be added. Ownership is not transferred.
- * "sorted" indicates whether or not the slot should be inserted according to
- *   cipherOrder of the associated module. PR_FALSE indicates that the slot
- *   should be inserted to the head of the list.
- */
-SECStatus
-PK11_AddSlotToList(PK11SlotList *list,PK11SlotInfo *slot, PRBool sorted)
-{
-    PK11SlotListElement *le;
-    PK11SlotListElement *element;
-
-    le = (PK11SlotListElement *) PORT_Alloc(sizeof(PK11SlotListElement));
-    if (le == NULL) return SECFailure;
-
-    le->slot = PK11_ReferenceSlot(slot);
-    le->prev = NULL;
-    le->refCount = 1;
-    PZ_Lock(list->lock);
-    element = list->head;
-    /* Insertion sort, with higher cipherOrders are sorted first in the list */
-    while (element && sorted && (element->slot->module->cipherOrder >
-                                 le->slot->module->cipherOrder)) {
-        element = element->next;
-    }
-    if (element) {
-        le->prev = element->prev;
-        element->prev = le;
-        le->next = element;
-    } else {
-        le->prev = list->tail;
-        le->next = NULL;
-        list->tail = le;
-    }
-    if (le->prev) le->prev->next = le;
-    if (list->head == element) list->head = le;
-    PZ_Unlock(list->lock);
-
-    return SECSuccess;
-}
-
-/*
- * remove a slot entry from the list
- */
-SECStatus
-PK11_DeleteSlotFromList(PK11SlotList *list,PK11SlotListElement *le)
-{
-    PZ_Lock(list->lock);
-    if (le->prev) le->prev->next = le->next; else list->head = le->next;
-    if (le->next) le->next->prev = le->prev; else list->tail = le->prev;
-    le->next = le->prev = NULL;
-    PZ_Unlock(list->lock);
-    PK11_FreeSlotListElement(list,le);
-    return SECSuccess;
-}
-
-/*
- * Move a list to the end of the target list.
- * NOTE: There is no locking here... This assumes BOTH lists are private copy
- * lists. It also does not re-sort the target list.
- */
-SECStatus
-pk11_MoveListToList(PK11SlotList *target,PK11SlotList *src)
-{
-    if (src->head == NULL) return SECSuccess;
-
-    if (target->tail == NULL) {
-	target->head = src->head;
-    } else {
-	target->tail->next = src->head;
-    }
-    src->head->prev = target->tail;
-    target->tail = src->tail;
-    src->head = src->tail = NULL;
-    return SECSuccess;
-}
-
-/*
- * get an element from the list with a reference. You must own the list.
- */
-PK11SlotListElement *
-PK11_GetFirstRef(PK11SlotList *list)
-{
-    PK11SlotListElement *le;
-
-    le = list->head;
-    if (le != NULL) (le)->refCount++;
-    return le;
-}
-
-/*
- * get the next element from the list with a reference. You must own the list.
- */
-PK11SlotListElement *
-PK11_GetNextRef(PK11SlotList *list, PK11SlotListElement *le, PRBool restart)
-{
-    PK11SlotListElement *new_le;
-    new_le = le->next;
-    if (new_le) new_le->refCount++;
-    PK11_FreeSlotListElement(list,le);
-    return new_le;
-}
-
-/*
- * get an element safely from the list. This just makes sure that if
- * this element is not deleted while we deal with it.
- */
-PK11SlotListElement *
-PK11_GetFirstSafe(PK11SlotList *list)
-{
-    PK11SlotListElement *le;
-
-    PZ_Lock(list->lock);
-    le = list->head;
-    if (le != NULL) (le)->refCount++;
-    PZ_Unlock(list->lock);
-    return le;
-}
-
-/*
- * NOTE: if this element gets deleted, we can no longer safely traverse using
- * it's pointers. We can either terminate the loop, or restart from the
- * beginning. This is controlled by the restart option.
- */
-PK11SlotListElement *
-PK11_GetNextSafe(PK11SlotList *list, PK11SlotListElement *le, PRBool restart)
-{
-    PK11SlotListElement *new_le;
-    PZ_Lock(list->lock);
-    new_le = le->next;
-    if (le->next == NULL) {
-	/* if the prev and next fields are NULL then either this element
-	 * has been removed and we need to walk the list again (if restart
-	 * is true) or this was the only element on the list */
-	if ((le->prev == NULL) && restart &&  (list->head != le)) {
-	    new_le = list->head;
-	}
-    }
-    if (new_le) new_le->refCount++;
-    PZ_Unlock(list->lock);
-    PK11_FreeSlotListElement(list,le);
-    return new_le;
-}
-
-
-/*
- * Find the element that holds this slot
- */
-PK11SlotListElement *
-PK11_FindSlotElement(PK11SlotList *list,PK11SlotInfo *slot)
-{
-    PK11SlotListElement *le;
-
-    for (le = PK11_GetFirstSafe(list); le;
-			 	le = PK11_GetNextSafe(list,le,PR_TRUE)) {
-	if (le->slot == slot) return le;
-    }
-    return NULL;
-}
-
-/************************************************************
- * Generic Slot Utilities
- ************************************************************/
-/*
- * Create a new slot structure
- */
-PK11SlotInfo *
-PK11_NewSlotInfo(SECMODModule *mod)
-{
-    PK11SlotInfo *slot;
-
-    slot = (PK11SlotInfo *)PORT_Alloc(sizeof(PK11SlotInfo));
-    if (slot == NULL) return slot;
-
-    slot->sessionLock = mod->isThreadSafe ?
-	PZ_NewLock(nssILockSession) : mod->refLock;
-    if (slot->sessionLock == NULL) {
-	PORT_Free(slot);
-	return NULL;
-    }
-    slot->freeListLock = PZ_NewLock(nssILockFreelist);
-    if (slot->freeListLock == NULL) {
-	if (mod->isThreadSafe) {
-	    PZ_DestroyLock(slot->sessionLock);
-	}
-	PORT_Free(slot);
-	return NULL;
-    }
-    slot->freeSymKeysWithSessionHead = NULL;
-    slot->freeSymKeysHead = NULL;
-    slot->keyCount = 0;
-    slot->maxKeyCount = 0;
-    slot->functionList = NULL;
-    slot->needTest = PR_TRUE;
-    slot->isPerm = PR_FALSE;
-    slot->isHW = PR_FALSE;
-    slot->isInternal = PR_FALSE;
-    slot->isThreadSafe = PR_FALSE;
-    slot->disabled = PR_FALSE;
-    slot->series = 1;
-    slot->wrapKey = 0;
-    slot->wrapMechanism = CKM_INVALID_MECHANISM;
-    slot->refKeys[0] = CK_INVALID_HANDLE;
-    slot->reason = PK11_DIS_NONE;
-    slot->readOnly = PR_TRUE;
-    slot->needLogin = PR_FALSE;
-    slot->hasRandom = PR_FALSE;
-    slot->defRWSession = PR_FALSE;
-    slot->protectedAuthPath = PR_FALSE;
-    slot->flags = 0;
-    slot->session = CK_INVALID_SESSION;
-    slot->slotID = 0;
-    slot->defaultFlags = 0;
-    slot->refCount = 1;
-    slot->askpw = 0;
-    slot->timeout = 0;
-    slot->mechanismList = NULL;
-    slot->mechanismCount = 0;
-    slot->cert_array = NULL;
-    slot->cert_count = 0;
-    slot->slot_name[0] = 0;
-    slot->token_name[0] = 0;
-    PORT_Memset(slot->serial,' ',sizeof(slot->serial));
-    slot->module = NULL;
-    slot->authTransact = 0;
-    slot->authTime = LL_ZERO;
-    slot->minPassword = 0;
-    slot->maxPassword = 0;
-    slot->hasRootCerts = PR_FALSE;
-    slot->nssToken = NULL;
-    return slot;
-}
-    
-/* create a new reference to a slot so it doesn't go away */
-PK11SlotInfo *
-PK11_ReferenceSlot(PK11SlotInfo *slot)
-{
-    PR_ATOMIC_INCREMENT(&slot->refCount);
-    return slot;
-}
-
-/* Destroy all info on a slot we have built up */
-void
-PK11_DestroySlot(PK11SlotInfo *slot)
-{
-   /* free up the cached keys and sessions */
-   PK11_CleanKeyList(slot);
-   
-   /* free up all the sessions on this slot */
-   if (slot->functionList) {
-	PK11_GETTAB(slot)->C_CloseAllSessions(slot->slotID);
-   }
-
-   if (slot->mechanismList) {
-	PORT_Free(slot->mechanismList);
-   }
-   if (slot->isThreadSafe && slot->sessionLock) {
-	PZ_DestroyLock(slot->sessionLock);
-   }
-   slot->sessionLock = NULL;
-   if (slot->freeListLock) {
-	PZ_DestroyLock(slot->freeListLock);
-	slot->freeListLock = NULL;
-   }
-
-   /* finally Tell our parent module that we've gone away so it can unload */
-   if (slot->module) {
-	SECMOD_SlotDestroyModule(slot->module,PR_TRUE);
-   }
-
-   /* ok, well not quit finally... now we free the memory */
-   PORT_Free(slot);
-}
-
-
-/* We're all done with the slot, free it */
-void
-PK11_FreeSlot(PK11SlotInfo *slot)
-{
-    if (PR_ATOMIC_DECREMENT(&slot->refCount) == 0) {
-	PK11_DestroySlot(slot);
-    }
-}
-
-void
-PK11_EnterSlotMonitor(PK11SlotInfo *slot) {
-    PZ_Lock(slot->sessionLock);
-}
-
-void
-PK11_ExitSlotMonitor(PK11SlotInfo *slot) {
-    PZ_Unlock(slot->sessionLock);
-}
-
-/***********************************************************
- * Functions to find specific slots.
- ***********************************************************/
-PRBool
-SECMOD_HasRootCerts(void)
-{
-   SECMODModuleList *mlp;
-   SECMODModuleList *modules;
-   SECMODListLock *moduleLock = SECMOD_GetDefaultModuleListLock();
-   int i;
-   PRBool found = PR_FALSE;
-
-    if (!moduleLock) {
-    	PORT_SetError(SEC_ERROR_NOT_INITIALIZED);
-	return found;
-    }
-
-   /* work through all the slots */
-   SECMOD_GetReadLock(moduleLock);
-   modules = SECMOD_GetDefaultModuleList();
-   for(mlp = modules; mlp != NULL; mlp = mlp->next) {
-	for (i=0; i < mlp->module->slotCount; i++) {
-	    PK11SlotInfo *tmpSlot = mlp->module->slots[i];
-	    if (PK11_IsPresent(tmpSlot)) {
-		if (tmpSlot->hasRootCerts) {
-		    found = PR_TRUE;
-		    break;
-		}
-	    }
-	}
-	if (found) break;
-    }
-    SECMOD_ReleaseReadLock(moduleLock);
-
-    return found;
-}
-
-/***********************************************************
- * Functions to find specific slots.
- ***********************************************************/
-PK11SlotList *
-PK11_FindSlotsByNames(const char *dllName, const char* slotName,
-                        const char* tokenName, PRBool presentOnly)
-{
-    SECMODModuleList *mlp;
-    SECMODModuleList *modules;
-    SECMODListLock *moduleLock = SECMOD_GetDefaultModuleListLock();
-    int i;
-    PK11SlotList* slotList = NULL;
-    PRUint32 slotcount = 0;
-    SECStatus rv = SECSuccess;
-
-    if (!moduleLock) {
-    	PORT_SetError(SEC_ERROR_NOT_INITIALIZED);
-	return slotList;
-    }
-
-    slotList = PK11_NewSlotList();
-    if (!slotList) {
-        PORT_SetError(SEC_ERROR_NO_MEMORY);
-        return slotList;
-    }
-
-    if ( ((NULL == dllName) || (0 == *dllName)) &&
-        ((NULL == slotName) || (0 == *slotName)) &&
-        ((NULL == tokenName) || (0 == *tokenName)) ) {
-        /* default to softoken */
-        PK11_AddSlotToList(slotList, PK11_GetInternalKeySlot(), PR_TRUE);
-        return slotList;
-    }
-
-    /* work through all the slots */
-    SECMOD_GetReadLock(moduleLock);
-    modules = SECMOD_GetDefaultModuleList();
-    for (mlp = modules; mlp != NULL; mlp = mlp->next) {
-        PORT_Assert(mlp->module);
-        if (!mlp->module) {
-            rv = SECFailure;
-            break;
-        }
-        if ((!dllName) || (mlp->module->dllName &&
-            (0 == PORT_Strcmp(mlp->module->dllName, dllName)))) {
-            for (i=0; i < mlp->module->slotCount; i++) {
-                PK11SlotInfo *tmpSlot = (mlp->module->slots?mlp->module->slots[i]:NULL);
-                PORT_Assert(tmpSlot);
-                if (!tmpSlot) {
-                    rv = SECFailure;
-                    break;
-                }
-                if ((PR_FALSE == presentOnly || PK11_IsPresent(tmpSlot)) &&
-                    ( (!tokenName) || (tmpSlot->token_name &&
-                    (0==PORT_Strcmp(tmpSlot->token_name, tokenName)))) &&
-                    ( (!slotName) || (tmpSlot->slot_name &&
-                    (0==PORT_Strcmp(tmpSlot->slot_name, slotName)))) ) {
-                    if (tmpSlot) {
-                        PK11_AddSlotToList(slotList, tmpSlot, PR_TRUE);
-                        slotcount++;
-                    }
-                }
-            }
-        }
-    }
-    SECMOD_ReleaseReadLock(moduleLock);
-
-    if ( (0 == slotcount) || (SECFailure == rv) ) {
-        PORT_SetError(SEC_ERROR_NO_TOKEN);
-        PK11_FreeSlotList(slotList);
-        slotList = NULL;
-    }
-
-    if (SECFailure == rv) {
-        PORT_SetError(SEC_ERROR_LIBRARY_FAILURE);
-    }
-
-    return slotList;
-}
-
-PK11SlotInfo *
-PK11_FindSlotByName(const char *name)
-{
-   SECMODModuleList *mlp;
-   SECMODModuleList *modules;
-   SECMODListLock *moduleLock = SECMOD_GetDefaultModuleListLock();
-   int i;
-   PK11SlotInfo *slot = NULL;
-
-    if (!moduleLock) {
-    	PORT_SetError(SEC_ERROR_NOT_INITIALIZED);
-	return slot;
-    }
-   if ((name == NULL) || (*name == 0)) {
-	return PK11_GetInternalKeySlot();
-   }
-
-   /* work through all the slots */
-   SECMOD_GetReadLock(moduleLock);
-   modules = SECMOD_GetDefaultModuleList();
-   for(mlp = modules; mlp != NULL; mlp = mlp->next) {
-	for (i=0; i < mlp->module->slotCount; i++) {
-	    PK11SlotInfo *tmpSlot = mlp->module->slots[i];
-	    if (PK11_IsPresent(tmpSlot)) {
-		if (PORT_Strcmp(tmpSlot->token_name,name) == 0) {
-		    slot = PK11_ReferenceSlot(tmpSlot);
-		    break;
-		}
-	    }
-	}
-	if (slot != NULL) break;
-    }
-    SECMOD_ReleaseReadLock(moduleLock);
-
-    if (slot == NULL) {
-	PORT_SetError(SEC_ERROR_NO_TOKEN);
-    }
-
-    return slot;
-}
-
-
-PK11SlotInfo *
-PK11_FindSlotBySerial(char *serial)
-{
-   SECMODModuleList *mlp;
-   SECMODModuleList *modules;
-   SECMODListLock *moduleLock = SECMOD_GetDefaultModuleListLock();
-   int i;
-   PK11SlotInfo *slot = NULL;
-
-    if (!moduleLock) {
-    	PORT_SetError(SEC_ERROR_NOT_INITIALIZED);
-	return slot;
-    }
-   /* work through all the slots */
-   SECMOD_GetReadLock(moduleLock);
-   modules = SECMOD_GetDefaultModuleList();
-   for(mlp = modules; mlp != NULL; mlp = mlp->next) {
-	for (i=0; i < mlp->module->slotCount; i++) {
-	    PK11SlotInfo *tmpSlot = mlp->module->slots[i];
-	    if (PK11_IsPresent(tmpSlot)) {
-		if (PORT_Memcmp(tmpSlot->serial,serial,
-					sizeof(tmpSlot->serial)) == 0) {
-		    slot = PK11_ReferenceSlot(tmpSlot);
-		    break;
-		}
-	    }
-	}
-	if (slot != NULL) break;
-    }
-    SECMOD_ReleaseReadLock(moduleLock);
-
-    if (slot == NULL) {
-	PORT_SetError(SEC_ERROR_NO_TOKEN);
-    }
-
-    return slot;
-}
-
-/*
- * notification stub. If we ever get interested in any events that
- * the pkcs11 functions may pass back to use, we can catch them here...
- * currently pdata is a slotinfo structure.
- */
-CK_RV pk11_notify(CK_SESSION_HANDLE session, CK_NOTIFICATION event,
-							 CK_VOID_PTR pdata)
-{
-    return CKR_OK;
-}
-
-/*
- * grab a new RW session
- * !!! has a side effect of grabbing the Monitor if either the slot's default
- * session is RW or the slot is not thread safe. Monitor is release in function
- * below
- */
-CK_SESSION_HANDLE PK11_GetRWSession(PK11SlotInfo *slot)
-{
-    CK_SESSION_HANDLE rwsession;
-    CK_RV crv;
-    PRBool haveMonitor = PR_FALSE;
-
-    if (!slot->isThreadSafe || slot->defRWSession) {
-    	PK11_EnterSlotMonitor(slot);
-	haveMonitor = PR_TRUE;
-    }
-    if (slot->defRWSession) {
-	PORT_Assert(slot->session != CK_INVALID_SESSION);
-	if (slot->session != CK_INVALID_SESSION) 
-	    return slot->session;
-    }
-
-    crv = PK11_GETTAB(slot)->C_OpenSession(slot->slotID,
-				CKF_RW_SESSION|CKF_SERIAL_SESSION,
-				  	  slot, pk11_notify,&rwsession);
-    PORT_Assert(rwsession != CK_INVALID_SESSION || crv != CKR_OK);
-    if (crv != CKR_OK || rwsession == CK_INVALID_SESSION) {
-	if (crv == CKR_OK) 
-	    crv = CKR_DEVICE_ERROR;
-	if (haveMonitor)
-	    PK11_ExitSlotMonitor(slot);
-	PORT_SetError(PK11_MapError(crv));
-	return CK_INVALID_SESSION;
-    }
-    if (slot->defRWSession) { /* we have the monitor */
-    	slot->session = rwsession;
-    }
-    return rwsession;
-}
-
-PRBool
-PK11_RWSessionHasLock(PK11SlotInfo *slot,CK_SESSION_HANDLE session_handle) 
-{
-    PRBool hasLock;
-    hasLock = (PRBool)(!slot->isThreadSafe || 
-    	      (slot->defRWSession && slot->session != CK_INVALID_SESSION));
-    return hasLock;
-}
-
-static PRBool
-pk11_RWSessionIsDefault(PK11SlotInfo *slot,CK_SESSION_HANDLE rwsession)
-{
-    PRBool isDefault;
-    isDefault = (PRBool)(slot->session == rwsession &&
-    	                 slot->defRWSession && 
-			 slot->session != CK_INVALID_SESSION);
-    return isDefault;
-}
-
-/*
- * close the rwsession and restore our readonly session
- * !!! has a side effect of releasing the Monitor if either the slot's default
- * session is RW or the slot is not thread safe.
- */
-void
-PK11_RestoreROSession(PK11SlotInfo *slot,CK_SESSION_HANDLE rwsession)
-{
-    PORT_Assert(rwsession != CK_INVALID_SESSION);
-    if (rwsession != CK_INVALID_SESSION) {
-    	PRBool doExit = PK11_RWSessionHasLock(slot, rwsession);
-	if (!pk11_RWSessionIsDefault(slot, rwsession))
-	    PK11_GETTAB(slot)->C_CloseSession(rwsession);
-	if (doExit)
-	    PK11_ExitSlotMonitor(slot);
-    }
-}
-
-/************************************************************
- * Manage the built-In Slot Lists
- ************************************************************/
-
-/* Init the static built int slot list (should actually integrate
- * with PK11_NewSlotList */
-static void
-pk11_InitSlotListStatic(PK11SlotList *list)
-{
-    list->lock = PZ_NewLock(nssILockList);
-    list->head = NULL;
-}
-
-
-/* initialize the system slotlists */
-SECStatus
-PK11_InitSlotLists(void)
-{
-    pk11_InitSlotListStatic(&pk11_seedSlotList);
-    pk11_InitSlotListStatic(&pk11_camelliaSlotList);
-    pk11_InitSlotListStatic(&pk11_aesSlotList);
-    pk11_InitSlotListStatic(&pk11_desSlotList);
-    pk11_InitSlotListStatic(&pk11_rc4SlotList);
-    pk11_InitSlotListStatic(&pk11_rc2SlotList);
-    pk11_InitSlotListStatic(&pk11_rc5SlotList);
-    pk11_InitSlotListStatic(&pk11_md5SlotList);
-    pk11_InitSlotListStatic(&pk11_md2SlotList);
-    pk11_InitSlotListStatic(&pk11_sha1SlotList);
-    pk11_InitSlotListStatic(&pk11_rsaSlotList);
-    pk11_InitSlotListStatic(&pk11_dsaSlotList);
-    pk11_InitSlotListStatic(&pk11_dhSlotList);
-    pk11_InitSlotListStatic(&pk11_ecSlotList);
-    pk11_InitSlotListStatic(&pk11_ideaSlotList);
-    pk11_InitSlotListStatic(&pk11_sslSlotList);
-    pk11_InitSlotListStatic(&pk11_tlsSlotList);
-    pk11_InitSlotListStatic(&pk11_randomSlotList);
-    pk11_InitSlotListStatic(&pk11_sha256SlotList);
-    pk11_InitSlotListStatic(&pk11_sha512SlotList);
-    return SECSuccess;
-}
-
-void
-PK11_DestroySlotLists(void)
-{
-    pk11_FreeSlotListStatic(&pk11_seedSlotList);
-    pk11_FreeSlotListStatic(&pk11_camelliaSlotList);
-    pk11_FreeSlotListStatic(&pk11_aesSlotList);
-    pk11_FreeSlotListStatic(&pk11_desSlotList);
-    pk11_FreeSlotListStatic(&pk11_rc4SlotList);
-    pk11_FreeSlotListStatic(&pk11_rc2SlotList);
-    pk11_FreeSlotListStatic(&pk11_rc5SlotList);
-    pk11_FreeSlotListStatic(&pk11_md5SlotList);
-    pk11_FreeSlotListStatic(&pk11_md2SlotList);
-    pk11_FreeSlotListStatic(&pk11_sha1SlotList);
-    pk11_FreeSlotListStatic(&pk11_rsaSlotList);
-    pk11_FreeSlotListStatic(&pk11_dsaSlotList);
-    pk11_FreeSlotListStatic(&pk11_dhSlotList);
-    pk11_FreeSlotListStatic(&pk11_ecSlotList);
-    pk11_FreeSlotListStatic(&pk11_ideaSlotList);
-    pk11_FreeSlotListStatic(&pk11_sslSlotList);
-    pk11_FreeSlotListStatic(&pk11_tlsSlotList);
-    pk11_FreeSlotListStatic(&pk11_randomSlotList);
-    pk11_FreeSlotListStatic(&pk11_sha256SlotList);
-    pk11_FreeSlotListStatic(&pk11_sha512SlotList);
-    return;
-}
-
-/* return a system slot list based on mechanism */
-PK11SlotList *
-PK11_GetSlotList(CK_MECHANISM_TYPE type)
-{
-/* XXX a workaround for Bugzilla bug #55267 */
-#if defined(HPUX) && defined(__LP64__)
-    if (CKM_INVALID_MECHANISM == type)
-        return NULL;
-#endif
-    switch (type) {
-    case CKM_SEED_CBC:
-    case CKM_SEED_ECB:
-	return &pk11_seedSlotList;
-    case CKM_CAMELLIA_CBC:
-    case CKM_CAMELLIA_ECB:
-	return &pk11_camelliaSlotList;
-    case CKM_AES_CBC:
-    case CKM_AES_ECB:
-	return &pk11_aesSlotList;
-    case CKM_DES_CBC:
-    case CKM_DES_ECB:
-    case CKM_DES3_ECB:
-    case CKM_DES3_CBC:
-	return &pk11_desSlotList;
-    case CKM_RC4:
-	return &pk11_rc4SlotList;
-    case CKM_RC5_CBC:
-	return &pk11_rc5SlotList;
-    case CKM_SHA_1:
-	return &pk11_sha1SlotList;
-    case CKM_SHA224:
-    case CKM_SHA256:
-	return &pk11_sha256SlotList;
-    case CKM_SHA384:
-    case CKM_SHA512:
-	return &pk11_sha512SlotList;
-    case CKM_MD5:
-	return &pk11_md5SlotList;
-    case CKM_MD2:
-	return &pk11_md2SlotList;
-    case CKM_RC2_ECB:
-    case CKM_RC2_CBC:
-	return &pk11_rc2SlotList;
-    case CKM_RSA_PKCS:
-    case CKM_RSA_PKCS_KEY_PAIR_GEN:
-    case CKM_RSA_X_509:
-	return &pk11_rsaSlotList;
-    case CKM_DSA:
-	return &pk11_dsaSlotList;
-    case CKM_DH_PKCS_KEY_PAIR_GEN:
-    case CKM_DH_PKCS_DERIVE:
-	return &pk11_dhSlotList;
-    case CKM_ECDSA:
-    case CKM_ECDSA_SHA1:
-    case CKM_EC_KEY_PAIR_GEN: /* aka CKM_ECDSA_KEY_PAIR_GEN */
-    case CKM_ECDH1_DERIVE:
-	return &pk11_ecSlotList;
-    case CKM_SSL3_PRE_MASTER_KEY_GEN:
-    case CKM_SSL3_MASTER_KEY_DERIVE:
-    case CKM_SSL3_SHA1_MAC:
-    case CKM_SSL3_MD5_MAC:
-	return &pk11_sslSlotList;
-    case CKM_TLS_MASTER_KEY_DERIVE:
-    case CKM_TLS_KEY_AND_MAC_DERIVE:
-	return &pk11_tlsSlotList;
-    case CKM_IDEA_CBC:
-    case CKM_IDEA_ECB:
-	return &pk11_ideaSlotList;
-    case CKM_FAKE_RANDOM:
-	return &pk11_randomSlotList;
-    }
-    return NULL;
-}
-
-/*
- * load the static SlotInfo structures used to select a PKCS11 slot.
- * preSlotInfo has a list of all the default flags for the slots on this
- * module.
- */
-void
-PK11_LoadSlotList(PK11SlotInfo *slot, PK11PreSlotInfo *psi, int count)
-{
-    int i;
-
-    for (i=0; i < count; i++) {
-	if (psi[i].slotID == slot->slotID)
-	    break;
-    }
-
-    if (i == count) return;
-
-    slot->defaultFlags = psi[i].defaultFlags;
-    slot->askpw = psi[i].askpw;
-    slot->timeout = psi[i].timeout;
-    slot->hasRootCerts = psi[i].hasRootCerts;
-
-    /* if the slot is already disabled, don't load them into the
-     * default slot lists. We get here so we can save the default
-     * list value. */
-    if (slot->disabled) return;
-
-    /* if the user has disabled us, don't load us in */
-    if (slot->defaultFlags & PK11_DISABLE_FLAG) {
-	slot->disabled = PR_TRUE;
-	slot->reason = PK11_DIS_USER_SELECTED;
-	/* free up sessions and things?? */
-	return;
-    }
-
-    for (i=0; i < num_pk11_default_mechanisms; i++) {
-	if (slot->defaultFlags & PK11_DefaultArray[i].flag) {
-	    CK_MECHANISM_TYPE mechanism = PK11_DefaultArray[i].mechanism;
-	    PK11SlotList *slotList = PK11_GetSlotList(mechanism);
-
-	    if (slotList) PK11_AddSlotToList(slotList,slot,PR_FALSE);
-	}
-    }
-
-    return;
-}
-
-
-/*
- * update a slot to its new attribute according to the slot list
- * returns: SECSuccess if nothing to do or add/delete is successful
- */
-SECStatus
-PK11_UpdateSlotAttribute(PK11SlotInfo *slot, PK11DefaultArrayEntry *entry,
-                        PRBool add)  
-                        /* add: PR_TRUE if want to turn on */
-{
-    SECStatus result = SECSuccess;
-    PK11SlotList *slotList = PK11_GetSlotList(entry->mechanism);
-
-    if (add) { /* trying to turn on a mechanism */
-                 
-        /* turn on the default flag in the slot */
-        slot->defaultFlags |= entry->flag;
-        
-        /* add this slot to the list */
-        if (slotList!=NULL)
-            result = PK11_AddSlotToList(slotList, slot, PR_FALSE);
-        
-    } else { /* trying to turn off */
-            
-        /* turn OFF the flag in the slot */ 
-        slot->defaultFlags &= ~entry->flag;
-        
-        if (slotList) {
-            /* find the element in the list & delete it */
-            PK11SlotListElement *le = PK11_FindSlotElement(slotList, slot);
-
-            /* remove the slot from the list */
-            if (le)
-                result = PK11_DeleteSlotFromList(slotList, le);
-        }
-    }
-    return result;
-}
-
-/*
- * clear a slot off of all of it's default list
- */
-void
-PK11_ClearSlotList(PK11SlotInfo *slot)
-{
-    int i;
-
-    if (slot->disabled) return;
-    if (slot->defaultFlags == 0) return;
-
-    for (i=0; i < num_pk11_default_mechanisms; i++) {
-	if (slot->defaultFlags & PK11_DefaultArray[i].flag) {
-	    CK_MECHANISM_TYPE mechanism = PK11_DefaultArray[i].mechanism;
-	    PK11SlotList *slotList = PK11_GetSlotList(mechanism);
-	    PK11SlotListElement *le = NULL;
-
-	    if (slotList) le = PK11_FindSlotElement(slotList,slot);
-
-	    if (le) {
-		PK11_DeleteSlotFromList(slotList,le);
-		PK11_FreeSlotListElement(slotList,le);
-	    }
-	}
-    }
-}
-
-
-/******************************************************************
- *           Slot initialization
- ******************************************************************/
-/*
- * turn a PKCS11 Static Label into a string
- */
-char *
-PK11_MakeString(PRArenaPool *arena,char *space,
-					char *staticString,int stringLen)
-{
-	int i;
-	char *newString;
-	for(i=(stringLen-1); i >= 0; i--) {
-	  if (staticString[i] != ' ') break;
-	}
-	/* move i to point to the last space */
-	i++;
-	if (arena) {
-	    newString = (char*)PORT_ArenaAlloc(arena,i+1 /* space for NULL */);
-	} else if (space) {
-	    newString = space;
-	} else {
-	    newString = (char*)PORT_Alloc(i+1 /* space for NULL */);
-	}
-	if (newString == NULL) return NULL;
-
-	if (i) PORT_Memcpy(newString,staticString, i);
-	newString[i] = 0;
-
-	return newString;
-}
-
-/*
- * Reads in the slots mechanism list for later use
- */
-SECStatus
-PK11_ReadMechanismList(PK11SlotInfo *slot)
-{
-    CK_ULONG count;
-    CK_RV crv;
-    PRUint32 i;
-
-    if (slot->mechanismList) {
-	PORT_Free(slot->mechanismList);
-	slot->mechanismList = NULL;
-    }
-    slot->mechanismCount = 0;
-
-    if (!slot->isThreadSafe) PK11_EnterSlotMonitor(slot);
-    crv = PK11_GETTAB(slot)->C_GetMechanismList(slot->slotID,NULL,&count);
-    if (crv != CKR_OK) {
-	if (!slot->isThreadSafe) PK11_ExitSlotMonitor(slot);
-	PORT_SetError(PK11_MapError(crv));
-	return SECFailure;
-    }
-
-    slot->mechanismList = (CK_MECHANISM_TYPE *)
-			    PORT_Alloc(count *sizeof(CK_MECHANISM_TYPE));
-    if (slot->mechanismList == NULL) {
-	if (!slot->isThreadSafe) PK11_ExitSlotMonitor(slot);
-	return SECFailure;
-    }
-    crv = PK11_GETTAB(slot)->C_GetMechanismList(slot->slotID,
-						slot->mechanismList, &count);
-    if (!slot->isThreadSafe) PK11_ExitSlotMonitor(slot);
-    if (crv != CKR_OK) {
-	PORT_Free(slot->mechanismList);
-	slot->mechanismList = NULL;
-	PORT_SetError(PK11_MapError(crv));
-	return SECSuccess;
-    }
-    slot->mechanismCount = count;
-    PORT_Memset(slot->mechanismBits, 0, sizeof(slot->mechanismBits));
-
-    for (i=0; i < count; i++) {
-	CK_MECHANISM_TYPE mech = slot->mechanismList[i];
-	if (mech < 0x7ff) {
-	    slot->mechanismBits[mech & 0xff] |= 1 << (mech >> 8);
-	}
-    }
-    return SECSuccess;
-}
-
-/*
- * initialize a new token
- * unlike initialize slot, this can be called multiple times in the lifetime
- * of NSS. It reads the information associated with a card or token,
- * that is not going to change unless the card or token changes.
- */
-SECStatus
-PK11_InitToken(PK11SlotInfo *slot, PRBool loadCerts)
-{
-    CK_TOKEN_INFO tokenInfo;
-    CK_RV crv;
-    char *tmp;
-    SECStatus rv;
-    PRStatus status;
-
-    /* set the slot flags to the current token values */
-    if (!slot->isThreadSafe) PK11_EnterSlotMonitor(slot);
-    crv = PK11_GETTAB(slot)->C_GetTokenInfo(slot->slotID,&tokenInfo);
-    if (!slot->isThreadSafe) PK11_ExitSlotMonitor(slot);
-    if (crv != CKR_OK) {
-	PORT_SetError(PK11_MapError(crv));
-	return SECFailure;
-    }
-
-    /* set the slot flags to the current token values */
-    slot->series++; /* allow other objects to detect that the 
-		      * slot is different */
-    slot->flags = tokenInfo.flags;
-    slot->needLogin = ((tokenInfo.flags & CKF_LOGIN_REQUIRED) ? 
-							PR_TRUE : PR_FALSE);
-    slot->readOnly = ((tokenInfo.flags & CKF_WRITE_PROTECTED) ? 
-							PR_TRUE : PR_FALSE);
-	
-	 
-    slot->hasRandom = ((tokenInfo.flags & CKF_RNG) ? PR_TRUE : PR_FALSE);
-    slot->protectedAuthPath =
-    		((tokenInfo.flags & CKF_PROTECTED_AUTHENTICATION_PATH) 
-	 						? PR_TRUE : PR_FALSE);
-    slot->lastLoginCheck = 0;
-    slot->lastState = 0;
-    /* on some platforms Active Card incorrectly sets the 
-     * CKF_PROTECTED_AUTHENTICATION_PATH bit when it doesn't mean to. */
-    if (slot->isActiveCard) {
-	slot->protectedAuthPath = PR_FALSE;
-    }
-    tmp = PK11_MakeString(NULL,slot->token_name,
-			(char *)tokenInfo.label, sizeof(tokenInfo.label));
-    slot->minPassword = tokenInfo.ulMinPinLen;
-    slot->maxPassword = tokenInfo.ulMaxPinLen;
-    PORT_Memcpy(slot->serial,tokenInfo.serialNumber,sizeof(slot->serial));
-
-    nssToken_UpdateName(slot->nssToken);
-
-    slot->defRWSession = (PRBool)((!slot->readOnly) && 
-					(tokenInfo.ulMaxSessionCount == 1));
-    rv = PK11_ReadMechanismList(slot);
-    if (rv != SECSuccess) return rv;
-
-    slot->hasRSAInfo = PR_FALSE;
-    slot->RSAInfoFlags = 0;
-
-    /* initialize the maxKeyCount value */
-    if (tokenInfo.ulMaxSessionCount == 0) {
-	slot->maxKeyCount = 800; /* should be #define or a config param */
-    } else if (tokenInfo.ulMaxSessionCount < 20) {
-	/* don't have enough sessions to keep that many keys around */
-	slot->maxKeyCount = 0;
-    } else {
-	slot->maxKeyCount = tokenInfo.ulMaxSessionCount/2;
-    }
-
-    /* Make sure our session handle is valid */
-    if (slot->session == CK_INVALID_SESSION) {
-	/* we know we don't have a valid session, go get one */
-	CK_SESSION_HANDLE session;
-
-	/* session should be Readonly, serial */
-	if (!slot->isThreadSafe) PK11_EnterSlotMonitor(slot);
-	crv = PK11_GETTAB(slot)->C_OpenSession(slot->slotID,
-	      (slot->defRWSession ? CKF_RW_SESSION : 0) | CKF_SERIAL_SESSION,
-				  slot,pk11_notify,&session);
-	if (!slot->isThreadSafe) PK11_ExitSlotMonitor(slot);
-	if (crv != CKR_OK) {
-	    PORT_SetError(PK11_MapError(crv));
-	    return SECFailure;
-	}
-	slot->session = session;
-    } else {
-	/* The session we have may be defunct (the token associated with it)
-	 * has been removed   */
-	CK_SESSION_INFO sessionInfo;
-
-	if (!slot->isThreadSafe) PK11_EnterSlotMonitor(slot);
-	crv = PK11_GETTAB(slot)->C_GetSessionInfo(slot->session,&sessionInfo);
-        if (crv == CKR_DEVICE_ERROR) {
-	    PK11_GETTAB(slot)->C_CloseSession(slot->session);
-	    crv = CKR_SESSION_CLOSED;
-	}
-	if ((crv==CKR_SESSION_CLOSED) || (crv==CKR_SESSION_HANDLE_INVALID)) {
-	    crv =PK11_GETTAB(slot)->C_OpenSession(slot->slotID,
-	      (slot->defRWSession ? CKF_RW_SESSION : 0) | CKF_SERIAL_SESSION,
-					slot,pk11_notify,&slot->session);
-	    if (crv != CKR_OK) {
-	        PORT_SetError(PK11_MapError(crv));
-		slot->session = CK_INVALID_SESSION;
-		if (!slot->isThreadSafe) PK11_ExitSlotMonitor(slot);
-		return SECFailure;
-	    }
-	}
-	if (!slot->isThreadSafe) PK11_ExitSlotMonitor(slot);
-    }
-
-    status = nssToken_Refresh(slot->nssToken);
-    if (status != PR_SUCCESS)
-    	return SECFailure;
-
-    if (!(slot->isInternal) && (slot->hasRandom)) {
-	/* if this slot has a random number generater, use it to add entropy
-	 * to the internal slot. */
-	PK11SlotInfo *int_slot = PK11_GetInternalSlot();
-
-	if (int_slot) {
-	    unsigned char random_bytes[32];
-
-	    /* if this slot can issue random numbers, get some entropy from
-	     * that random number generater and give it to our internal token.
-	     */
-	    PK11_EnterSlotMonitor(slot);
-	    crv = PK11_GETTAB(slot)->C_GenerateRandom
-			(slot->session,random_bytes, sizeof(random_bytes));
-	    PK11_ExitSlotMonitor(slot);
-	    if (crv == CKR_OK) {
-	        PK11_EnterSlotMonitor(int_slot);
-		PK11_GETTAB(int_slot)->C_SeedRandom(int_slot->session,
-					random_bytes, sizeof(random_bytes));
-	        PK11_ExitSlotMonitor(int_slot);
-	    }
-
-	    /* Now return the favor and send entropy to the token's random 
-	     * number generater */
-	    PK11_EnterSlotMonitor(int_slot);
-	    crv = PK11_GETTAB(int_slot)->C_GenerateRandom(int_slot->session,
-					random_bytes, sizeof(random_bytes));
-	    PK11_ExitSlotMonitor(int_slot);
-	    if (crv == CKR_OK) {
-	        PK11_EnterSlotMonitor(slot);
-		crv = PK11_GETTAB(slot)->C_SeedRandom(slot->session,
-					random_bytes, sizeof(random_bytes));
-	        PK11_ExitSlotMonitor(slot);
-	    }
-	    PK11_FreeSlot(int_slot);
-	}
-    }
-    /* work around a problem in softoken where it incorrectly
-     * reports databases opened read only as read/write. */
-    if (slot->isInternal && !slot->readOnly) {
-	CK_SESSION_HANDLE session = CK_INVALID_SESSION;
-
-	/* try to open a R/W session */
-	crv =PK11_GETTAB(slot)->C_OpenSession(slot->slotID,
-	      CKF_RW_SESSION|CKF_SERIAL_SESSION, slot, pk11_notify ,&session);
-	/* what a well behaved token should return if you open 
-	 * a RW session on a read only token */
-	if (crv == CKR_TOKEN_WRITE_PROTECTED) {
-	    slot->readOnly = PR_TRUE;
-	} else if (crv == CKR_OK) {
-	    CK_SESSION_INFO sessionInfo;
-
-	    /* Because of a second bug in softoken, which silently returns
-	     * a RO session, we need to check what type of session we got. */
-	    crv = PK11_GETTAB(slot)->C_GetSessionInfo(session, &sessionInfo);
-	    if (crv == CKR_OK) {
-		if ((sessionInfo.flags & CKF_RW_SESSION) == 0) {
-		    /* session was readonly, so this softoken slot must be 			     * readonly */
-		    slot->readOnly = PR_TRUE;
-		}
-	    }
-	    PK11_GETTAB(slot)->C_CloseSession(session);
-	}
-    }
-	
-    return SECSuccess;
-}
-
-/*
- * initialize a new token
- * unlike initialize slot, this can be called multiple times in the lifetime
- * of NSS. It reads the information associated with a card or token,
- * that is not going to change unless the card or token changes.
- */
-SECStatus
-PK11_TokenRefresh(PK11SlotInfo *slot)
-{
-    CK_TOKEN_INFO tokenInfo;
-    CK_RV crv;
-
-    /* set the slot flags to the current token values */
-    if (!slot->isThreadSafe) PK11_EnterSlotMonitor(slot);
-    crv = PK11_GETTAB(slot)->C_GetTokenInfo(slot->slotID,&tokenInfo);
-    if (!slot->isThreadSafe) PK11_ExitSlotMonitor(slot);
-    if (crv != CKR_OK) {
-	PORT_SetError(PK11_MapError(crv));
-	return SECFailure;
-    }
-
-    slot->flags = tokenInfo.flags;
-    slot->needLogin = ((tokenInfo.flags & CKF_LOGIN_REQUIRED) ? 
-							PR_TRUE : PR_FALSE);
-    slot->readOnly = ((tokenInfo.flags & CKF_WRITE_PROTECTED) ? 
-							PR_TRUE : PR_FALSE);
-    slot->hasRandom = ((tokenInfo.flags & CKF_RNG) ? PR_TRUE : PR_FALSE);
-    slot->protectedAuthPath =
-    		((tokenInfo.flags & CKF_PROTECTED_AUTHENTICATION_PATH) 
-	 						? PR_TRUE : PR_FALSE);
-    /* on some platforms Active Card incorrectly sets the 
-     * CKF_PROTECTED_AUTHENTICATION_PATH bit when it doesn't mean to. */
-    if (slot->isActiveCard) {
-	slot->protectedAuthPath = PR_FALSE;
-    }
-    return SECSuccess;
-}
-
-static PRBool
-pk11_isRootSlot(PK11SlotInfo *slot) 
-{
-    CK_ATTRIBUTE findTemp[1];
-    CK_ATTRIBUTE *attrs;
-    CK_OBJECT_CLASS oclass = CKO_NETSCAPE_BUILTIN_ROOT_LIST;
-    int tsize;
-    CK_OBJECT_HANDLE handle;
-
-    attrs = findTemp;
-    PK11_SETATTRS(attrs, CKA_CLASS, &oclass, sizeof(oclass)); attrs++;
-    tsize = attrs - findTemp;
-    PORT_Assert(tsize <= sizeof(findTemp)/sizeof(CK_ATTRIBUTE));
-
-    handle = pk11_FindObjectByTemplate(slot,findTemp,tsize);
-    if (handle == CK_INVALID_HANDLE) {
-	return PR_FALSE;
-    }
-    return PR_TRUE;
-}
-
-/*
- * Initialize the slot :
- * This initialization code is called on each slot a module supports when
- * it is loaded. It does the bringup initialization. The difference between
- * this and InitToken is Init slot does those one time initialization stuff,
- * usually associated with the reader, while InitToken may get called multiple
- * times as tokens are removed and re-inserted.
- */
-void
-PK11_InitSlot(SECMODModule *mod, CK_SLOT_ID slotID, PK11SlotInfo *slot)
-{
-    SECStatus rv;
-    char *tmp;
-    CK_SLOT_INFO slotInfo;
-
-    slot->functionList = mod->functionList;
-    slot->isInternal = mod->internal;
-    slot->slotID = slotID;
-    slot->isThreadSafe = mod->isThreadSafe;
-    slot->hasRSAInfo = PR_FALSE;
-    
-    if (PK11_GETTAB(slot)->C_GetSlotInfo(slotID,&slotInfo) != CKR_OK) {
-	slot->disabled = PR_TRUE;
-	slot->reason = PK11_DIS_COULD_NOT_INIT_TOKEN;
-	return;
-    }
-
-    /* test to make sure claimed mechanism work */
-    slot->needTest = mod->internal ? PR_FALSE : PR_TRUE;
-    slot->module = mod; /* NOTE: we don't make a reference here because
-			 * modules have references to their slots. This
-			 * works because modules keep implicit references
-			 * from their slots, and won't unload and disappear
-			 * until all their slots have been freed */
-    tmp = PK11_MakeString(NULL,slot->slot_name,
-	 (char *)slotInfo.slotDescription, sizeof(slotInfo.slotDescription));
-    slot->isHW = (PRBool)((slotInfo.flags & CKF_HW_SLOT) == CKF_HW_SLOT);
-#define ACTIVE_CARD "ActivCard SA"
-    slot->isActiveCard = (PRBool)(PORT_Strncmp((char *)slotInfo.manufacturerID,
-				ACTIVE_CARD, sizeof(ACTIVE_CARD)-1) == 0);
-    if ((slotInfo.flags & CKF_REMOVABLE_DEVICE) == 0) {
-	slot->isPerm = PR_TRUE;
-	/* permanment slots must have the token present always */
-	if ((slotInfo.flags & CKF_TOKEN_PRESENT) == 0) {
-	    slot->disabled = PR_TRUE;
-	    slot->reason = PK11_DIS_TOKEN_NOT_PRESENT;
-	    return; /* nothing else to do */
-	}
-    }
-    /* if the token is present, initialize it */
-    if ((slotInfo.flags & CKF_TOKEN_PRESENT) != 0) {
-	rv = PK11_InitToken(slot,PR_TRUE);
-	/* the only hard failures are on permanent devices, or function
-	 * verify failures... function verify failures are already handled
-	 * by tokenInit */
-	if ((rv != SECSuccess) && (slot->isPerm) && (!slot->disabled)) {
-	    slot->disabled = PR_TRUE;
-	    slot->reason = PK11_DIS_COULD_NOT_INIT_TOKEN;
-	}
-	if (rv == SECSuccess && pk11_isRootSlot(slot)) {
-	    if (!slot->hasRootCerts) {
-		slot->module->trustOrder = 100;
-	    }
-	    slot->hasRootCerts= PR_TRUE;
-	}
-    }
-}
-
-	
-
-/*********************************************************************
- *            Slot mapping utility functions.
- *********************************************************************/
-
-/*
- * determine if the token is present. If the token is present, make sure
- * we have a valid session handle. Also set the value of needLogin 
- * appropriately.
- */
-static PRBool
-pk11_IsPresentCertLoad(PK11SlotInfo *slot, PRBool loadCerts)
-{
-    CK_SLOT_INFO slotInfo;
-    CK_SESSION_INFO sessionInfo;
-    CK_RV crv;
-
-    /* disabled slots are never present */
-    if (slot->disabled) {
-	return PR_FALSE;
-    }
-
-    /* permanent slots are always present */
-    if (slot->isPerm && (slot->session != CK_INVALID_SESSION)) {
-	return PR_TRUE;
-    }
-
-    if (slot->nssToken) {
-	return nssToken_IsPresent(slot->nssToken);
-    }
-
-    /* removable slots have a flag that says they are present */
-    if (!slot->isThreadSafe) PK11_EnterSlotMonitor(slot);
-    if (PK11_GETTAB(slot)->C_GetSlotInfo(slot->slotID,&slotInfo) != CKR_OK) {
-        if (!slot->isThreadSafe) PK11_ExitSlotMonitor(slot);
-	return PR_FALSE;
-    }
-    if ((slotInfo.flags & CKF_TOKEN_PRESENT) == 0) {
-	/* if the slot is no longer present, close the session */
-	if (slot->session != CK_INVALID_SESSION) {
-	    PK11_GETTAB(slot)->C_CloseSession(slot->session);
-	    slot->session = CK_INVALID_SESSION;
-	}
-        if (!slot->isThreadSafe) PK11_ExitSlotMonitor(slot);
-	return PR_FALSE;
-    }
-
-    /* use the session Info to determine if the card has been removed and then
-     * re-inserted */
-    if (slot->session != CK_INVALID_SESSION) {
-	if (slot->isThreadSafe) PK11_EnterSlotMonitor(slot);
-	crv = PK11_GETTAB(slot)->C_GetSessionInfo(slot->session, &sessionInfo);
-	if (crv != CKR_OK) {
-	    PK11_GETTAB(slot)->C_CloseSession(slot->session);
-	    slot->session = CK_INVALID_SESSION;
-	}
-        if (slot->isThreadSafe) PK11_ExitSlotMonitor(slot);
-    }
-    if (!slot->isThreadSafe) PK11_ExitSlotMonitor(slot);
-
-    /* card has not been removed, current token info is correct */
-    if (slot->session != CK_INVALID_SESSION) return PR_TRUE;
-
-    /* initialize the token info state */
-    if (PK11_InitToken(slot,loadCerts) != SECSuccess) {
-	return PR_FALSE;
-    }
-
-    return PR_TRUE;
-}
-
-/*
- * old version of the routine
- */
-PRBool
-PK11_IsPresent(PK11SlotInfo *slot) {
-   return pk11_IsPresentCertLoad(slot,PR_TRUE);
-}
-
-/* is the slot disabled? */
-PRBool
-PK11_IsDisabled(PK11SlotInfo *slot)
-{
-    return slot->disabled;
-}
-
-/* and why? */
-PK11DisableReasons
-PK11_GetDisabledReason(PK11SlotInfo *slot)
-{
-    return slot->reason;
-}
-
-/* returns PR_TRUE if successfully disable the slot */
-/* returns PR_FALSE otherwise */
-PRBool PK11_UserDisableSlot(PK11SlotInfo *slot) {
-
-    slot->defaultFlags |= PK11_DISABLE_FLAG;
-    slot->disabled = PR_TRUE;
-    slot->reason = PK11_DIS_USER_SELECTED;
-    
-    return PR_TRUE;
-}
-
-PRBool PK11_UserEnableSlot(PK11SlotInfo *slot) {
-
-    slot->defaultFlags &= ~PK11_DISABLE_FLAG;
-    slot->disabled = PR_FALSE;
-    slot->reason = PK11_DIS_NONE;
-    return PR_TRUE;
-}
-
-PRBool PK11_HasRootCerts(PK11SlotInfo *slot) {
-    return slot->hasRootCerts;
-}
-
-/* Get the module this slot is attached to */
-SECMODModule *
-PK11_GetModule(PK11SlotInfo *slot)
-{
-	return slot->module;
-}
-
-/* return the default flags of a slot */
-unsigned long
-PK11_GetDefaultFlags(PK11SlotInfo *slot)
-{
-	return slot->defaultFlags;
-}
-
-/*
- * The following wrapper functions allow us to export an opaque slot
- * function to the rest of libsec and the world... */
-PRBool
-PK11_IsReadOnly(PK11SlotInfo *slot)
-{
-    return slot->readOnly;
-}
-
-PRBool
-PK11_IsHW(PK11SlotInfo *slot)
-{
-    return slot->isHW;
-}
-
-PRBool
-PK11_IsRemovable(PK11SlotInfo *slot)
-{
-    return !slot->isPerm;
-}
-
-PRBool
-PK11_IsInternal(PK11SlotInfo *slot)
-{
-    return slot->isInternal;
-}
-
-PRBool
-PK11_IsInternalKeySlot(PK11SlotInfo *slot)
-{
-    PK11SlotInfo *int_slot;
-    PRBool result;
-
-    if (!slot->isInternal) {
-	return PR_FALSE;
-    }
-
-    int_slot = PK11_GetInternalKeySlot();
-    result = (int_slot == slot) ? PR_TRUE : PR_FALSE;
-    PK11_FreeSlot(int_slot);
-    return result;
-}
-
-PRBool
-PK11_NeedLogin(PK11SlotInfo *slot)
-{
-    return slot->needLogin;
-}
-
-PRBool
-PK11_IsFriendly(PK11SlotInfo *slot)
-{
-    /* internal slot always has public readable certs */
-    return (PRBool)(slot->isInternal || 
-		    ((slot->defaultFlags & SECMOD_FRIENDLY_FLAG) == 
-		     SECMOD_FRIENDLY_FLAG));
-}
-
-char *
-PK11_GetTokenName(PK11SlotInfo *slot)
-{
-     return slot->token_name;
-}
-
-char *
-PK11_GetSlotName(PK11SlotInfo *slot)
-{
-     return slot->slot_name;
-}
-
-int
-PK11_GetSlotSeries(PK11SlotInfo *slot)
-{
-    return slot->series;
-}
-
-int
-PK11_GetCurrentWrapIndex(PK11SlotInfo *slot)
-{
-    return slot->wrapKey;
-}
-
-CK_SLOT_ID
-PK11_GetSlotID(PK11SlotInfo *slot)
-{
-    return slot->slotID;
-}
-
-SECMODModuleID
-PK11_GetModuleID(PK11SlotInfo *slot)
-{
-    return slot->module->moduleID;
-}
-
-static void
-pk11_zeroTerminatedToBlankPadded(CK_CHAR *buffer, size_t buffer_size)
-{
-    CK_CHAR *walk = buffer;
-    CK_CHAR *end = buffer + buffer_size;
-
-    /* find the NULL */
-    while (walk < end && *walk != '\0') {
-	walk++;
-    }
-
-    /* clear out the buffer */
-    while (walk < end) {
-	*walk++ = ' ';
-    }
-}
-
-/* return the slot info structure */
-SECStatus
-PK11_GetSlotInfo(PK11SlotInfo *slot, CK_SLOT_INFO *info)
-{
-    CK_RV crv;
-
-    if (!slot->isThreadSafe) PK11_EnterSlotMonitor(slot);
-    /*
-     * some buggy drivers do not fill the buffer completely, 
-     * erase the buffer first
-     */
-    PORT_Memset(info->slotDescription,' ',sizeof(info->slotDescription));
-    PORT_Memset(info->manufacturerID,' ',sizeof(info->manufacturerID));
-    crv = PK11_GETTAB(slot)->C_GetSlotInfo(slot->slotID,info);
-    pk11_zeroTerminatedToBlankPadded(info->slotDescription,
-					sizeof(info->slotDescription));
-    pk11_zeroTerminatedToBlankPadded(info->manufacturerID,
-					sizeof(info->manufacturerID));
-    if (!slot->isThreadSafe) PK11_ExitSlotMonitor(slot);
-    if (crv != CKR_OK) {
-	PORT_SetError(PK11_MapError(crv));
-	return SECFailure;
-    }
-    return SECSuccess;
-}
-
-/*  return the token info structure */
-SECStatus
-PK11_GetTokenInfo(PK11SlotInfo *slot, CK_TOKEN_INFO *info)
-{
-    CK_RV crv;
-    if (!slot->isThreadSafe) PK11_EnterSlotMonitor(slot);
-    /*
-     * some buggy drivers do not fill the buffer completely, 
-     * erase the buffer first
-     */
-    PORT_Memset(info->label,' ',sizeof(info->label));
-    PORT_Memset(info->manufacturerID,' ',sizeof(info->manufacturerID));
-    PORT_Memset(info->model,' ',sizeof(info->model));
-    PORT_Memset(info->serialNumber,' ',sizeof(info->serialNumber));
-    crv = PK11_GETTAB(slot)->C_GetTokenInfo(slot->slotID,info);
-    pk11_zeroTerminatedToBlankPadded(info->label,sizeof(info->label));
-    pk11_zeroTerminatedToBlankPadded(info->manufacturerID,
-					sizeof(info->manufacturerID));
-    pk11_zeroTerminatedToBlankPadded(info->model,sizeof(info->model));
-    pk11_zeroTerminatedToBlankPadded(info->serialNumber,
-					sizeof(info->serialNumber));
-    if (!slot->isThreadSafe) PK11_ExitSlotMonitor(slot);
-    if (crv != CKR_OK) {
-	PORT_SetError(PK11_MapError(crv));
-	return SECFailure;
-    }
-    return SECSuccess;
-}
-
-/* Find out if we need to initialize the user's pin */
-PRBool
-PK11_NeedUserInit(PK11SlotInfo *slot)
-{
-    PRBool needUserInit = (PRBool) ((slot->flags & CKF_USER_PIN_INITIALIZED) 
-					== 0);
-
-    if (needUserInit) {
-	CK_TOKEN_INFO info;
-	SECStatus rv;
-
-	/* see if token has been initialized off line */
-	rv = PK11_GetTokenInfo(slot, &info);
-	if (rv == SECSuccess) {
-	    slot->flags = info.flags;
-	}
-    }
-    return (PRBool)((slot->flags & CKF_USER_PIN_INITIALIZED) == 0);
-}
-
-static PK11SlotInfo *pk11InternalKeySlot = NULL;
-
-/*
- * Set a new default internal keyslot. If one has already been set, clear it.
- * Passing NULL falls back to the NSS normally selected default internal key
- * slot.
- */
-void
-pk11_SetInternalKeySlot(PK11SlotInfo *slot)
-{
-   if (pk11InternalKeySlot) {
-	PK11_FreeSlot(pk11InternalKeySlot);
-   }
-   pk11InternalKeySlot = slot ? PK11_ReferenceSlot(slot) : NULL;
-}
-
-/*
- * Set a new default internal keyslot if the normal key slot has not already
- * been overridden. Subsequent calls to this function will be ignored unless
- * pk11_SetInternalKeySlot is used to clear the current default.
- */
-void
-pk11_SetInternalKeySlotIfFirst(PK11SlotInfo *slot)
-{
-   if (pk11InternalKeySlot) {
-	return;
-   }
-   pk11InternalKeySlot = slot ? PK11_ReferenceSlot(slot) : NULL;
-}
-
-/*
- * Swap out a default internal keyslot.  Caller owns the Slot Reference
- */
-PK11SlotInfo *
-pk11_SwapInternalKeySlot(PK11SlotInfo *slot)
-{
-   PK11SlotInfo *swap = pk11InternalKeySlot;
-
-   pk11InternalKeySlot = slot ? PK11_ReferenceSlot(slot) : NULL;
-   return swap;
-}
-
-
-/* get the internal key slot. FIPS has only one slot for both key slots and
- * default slots */
-PK11SlotInfo *
-PK11_GetInternalKeySlot(void)
-{
-    SECMODModule *mod;
-
-    if (pk11InternalKeySlot) {
-	return PK11_ReferenceSlot(pk11InternalKeySlot);
-    }
-
-    mod = SECMOD_GetInternalModule();
-    PORT_Assert(mod != NULL);
-    if (!mod) {
-	PORT_SetError( SEC_ERROR_NO_MODULE );
-	return NULL;
-    }
-    return PK11_ReferenceSlot(mod->isFIPS ? mod->slots[0] : mod->slots[1]);
-}
-
-/* get the internal default slot */
-PK11SlotInfo *
-PK11_GetInternalSlot(void) 
-{
-    SECMODModule * mod = SECMOD_GetInternalModule();
-    PORT_Assert(mod != NULL);
-    if (!mod) {
-	PORT_SetError( SEC_ERROR_NO_MODULE );
-	return NULL;
-    }
-    if (mod->isFIPS) {
-	return PK11_GetInternalKeySlot();
-    }
-    return PK11_ReferenceSlot(mod->slots[0]);
-}
-
-/*
- * check if a given slot supports the requested mechanism
- */
-PRBool
-PK11_DoesMechanism(PK11SlotInfo *slot, CK_MECHANISM_TYPE type)
-{
-    int i;
-
-    /* CKM_FAKE_RANDOM is not a real PKCS mechanism. It's a marker to
-     * tell us we're looking form someone that has implemented get
-     * random bits */
-    if (type == CKM_FAKE_RANDOM) {
-	return slot->hasRandom;
-    }
-
-    /* for most mechanism, bypass the linear lookup */
-    if (type < 0x7ff) {
-	return (slot->mechanismBits[type & 0xff] & (1 << (type >> 8)))  ?
-		PR_TRUE : PR_FALSE;
-    }
-	   
-    for (i=0; i < (int) slot->mechanismCount; i++) {
-	if (slot->mechanismList[i] == type) return PR_TRUE;
-    }
-    return PR_FALSE;
-}
-
-/*
- * Return true if a token that can do the desired mechanism exists.
- * This allows us to have hardware tokens that can do function XYZ magically
- * allow SSL Ciphers to appear if they are plugged in.
- */
-PRBool
-PK11_TokenExists(CK_MECHANISM_TYPE type)
-{
-    SECMODModuleList *mlp;
-    SECMODModuleList *modules;
-    SECMODListLock *moduleLock = SECMOD_GetDefaultModuleListLock();
-    PK11SlotInfo *slot;
-    PRBool found = PR_FALSE;
-    int i;
-
-    if (!moduleLock) {
-    	PORT_SetError(SEC_ERROR_NOT_INITIALIZED);
-	return found;
-    }
-    /* we only need to know if there is a token that does this mechanism.
-     * check the internal module first because it's fast, and supports 
-     * almost everything. */
-    slot = PK11_GetInternalSlot();
-    if (slot) {
-    	found = PK11_DoesMechanism(slot,type);
-	PK11_FreeSlot(slot);
-    }
-    if (found) return PR_TRUE; /* bypass getting module locks */
-
-    SECMOD_GetReadLock(moduleLock);
-    modules = SECMOD_GetDefaultModuleList();
-    for(mlp = modules; mlp != NULL && (!found); mlp = mlp->next) {
-	for (i=0; i < mlp->module->slotCount; i++) {
-	    slot = mlp->module->slots[i];
-	    if (PK11_IsPresent(slot)) {
-		if (PK11_DoesMechanism(slot,type)) {
-		    found = PR_TRUE;
-		    break;
-		}
-	    }
-	}
-    }
-    SECMOD_ReleaseReadLock(moduleLock);
-    return found;
-}
-
-/*
- * get all the currently available tokens in a list.
- * that can perform the given mechanism. If mechanism is CKM_INVALID_MECHANISM,
- * get all the tokens. Make sure tokens that need authentication are put at
- * the end of this list.
- */
-PK11SlotList *
-PK11_GetAllTokens(CK_MECHANISM_TYPE type, PRBool needRW, PRBool loadCerts, 
-                  void *wincx)
-{
-    PK11SlotList *     list;
-    PK11SlotList *     loginList;
-    PK11SlotList *     friendlyList;
-    SECMODModuleList * mlp;
-    SECMODModuleList * modules;
-    SECMODListLock *   moduleLock;
-    int                i;
-#if defined( XP_WIN32 ) 
-    int                j            = 0;
-    PRInt32            waste[16];
-#endif
-
-    moduleLock   = SECMOD_GetDefaultModuleListLock();
-    if (!moduleLock) {
-    	PORT_SetError(SEC_ERROR_NOT_INITIALIZED);
-	return NULL;
-    }
-
-    list         = PK11_NewSlotList();
-    loginList    = PK11_NewSlotList();
-    friendlyList = PK11_NewSlotList();
-    if ((list == NULL)  || (loginList == NULL) || (friendlyList == NULL)) {
-	if (list) PK11_FreeSlotList(list);
-	if (loginList) PK11_FreeSlotList(loginList);
-	if (friendlyList) PK11_FreeSlotList(friendlyList);
-	return NULL;
-    }
-
-    SECMOD_GetReadLock(moduleLock);
-
-    modules      = SECMOD_GetDefaultModuleList();
-    for(mlp = modules; mlp != NULL; mlp = mlp->next) {
-
-#if defined( XP_WIN32 ) 
-	/* This is works around some horrible cache/page thrashing problems 
-	** on Win32.  Without this, this loop can take up to 6 seconds at 
-	** 100% CPU on a Pentium-Pro 200.  The thing this changes is to 
-	** increase the size of the stack frame and modify it.  
-	** Moving the loop code itself seems to have no effect.
-	** Dunno why this combination makes a difference, but it does.
-	*/
-	waste[ j & 0xf] = j++; 
-#endif
-
-	for (i = 0; i < mlp->module->slotCount; i++) {
-	    PK11SlotInfo *slot = mlp->module->slots[i];
-
-	    if (pk11_IsPresentCertLoad(slot, loadCerts)) {
-		if (needRW &&  slot->readOnly) continue;
-		if ((type == CKM_INVALID_MECHANISM) 
-					|| PK11_DoesMechanism(slot, type)) {
-		    if (pk11_LoginStillRequired(slot,wincx)) {
-			if (PK11_IsFriendly(slot)) {
-			    PK11_AddSlotToList(friendlyList, slot, PR_TRUE);
-			} else {
-			    PK11_AddSlotToList(loginList, slot, PR_TRUE);
-			}
-		    } else {
-			PK11_AddSlotToList(list, slot, PR_TRUE);
-		    }
-		}
-	    }
-	}
-    }
-    SECMOD_ReleaseReadLock(moduleLock);
-
-    pk11_MoveListToList(list,friendlyList);
-    PK11_FreeSlotList(friendlyList);
-    pk11_MoveListToList(list,loginList);
-    PK11_FreeSlotList(loginList);
-
-    return list;
-}
-
-/*
- * NOTE: This routine is working from a private List generated by 
- * PK11_GetAllTokens. That is why it does not need to lock.
- */
-PK11SlotList *
-PK11_GetPrivateKeyTokens(CK_MECHANISM_TYPE type,PRBool needRW,void *wincx)
-{
-    PK11SlotList *list = PK11_GetAllTokens(type,needRW,PR_TRUE,wincx);
-    PK11SlotListElement *le, *next ;
-    SECStatus rv;
-
-    if (list == NULL) return list;
-
-    for (le = list->head ; le; le = next) {
-	next = le->next; /* save the pointer here in case we have to 
-			  * free the element later */
-        rv = PK11_Authenticate(le->slot,PR_TRUE,wincx);
-	if (rv != SECSuccess) {
-	    PK11_DeleteSlotFromList(list,le);
-	    continue;
-	}
-    }
-    return list;
-}
-
-/*
- * returns true if the slot doesn't conform to the requested attributes
- */
-PRBool
-pk11_filterSlot(PK11SlotInfo *slot, CK_MECHANISM_TYPE mechanism, 
-	CK_FLAGS mechanismInfoFlags, unsigned int keySize) 
-{
-    CK_MECHANISM_INFO mechanism_info;
-    CK_RV crv = CKR_OK;
-
-    /* handle the only case where we don't actually fetch the mechanisms
-     * on the fly */
-    if ((keySize == 0) && (mechanism == CKM_RSA_PKCS) && (slot->hasRSAInfo)) {
-	mechanism_info.flags = slot->RSAInfoFlags;
-    } else {
-	if (!slot->isThreadSafe) PK11_EnterSlotMonitor(slot);
-    	crv = PK11_GETTAB(slot)->C_GetMechanismInfo(slot->slotID, mechanism, 
-							&mechanism_info);
-	if (!slot->isThreadSafe) PK11_ExitSlotMonitor(slot);
-	/* if we were getting the RSA flags, save them */
-	if ((crv == CKR_OK) && (mechanism == CKM_RSA_PKCS) 
-						&& (!slot->hasRSAInfo)) {
-	    slot->RSAInfoFlags = mechanism_info.flags;
-	    slot->hasRSAInfo = PR_TRUE;
-	}
-    }
-    /* couldn't get the mechanism info */
-    if (crv != CKR_OK ) {
-	return PR_TRUE;
-    }
-    if (keySize && ((mechanism_info.ulMinKeySize > keySize)
-			|| (mechanism_info.ulMaxKeySize < keySize)) ) {
-	/* Token can do mechanism, but not at the key size we
-	 * want */
-	return PR_TRUE;
-    }
-    if (mechanismInfoFlags && ((mechanism_info.flags & mechanismInfoFlags) !=
-				mechanismInfoFlags) ) {
-	return PR_TRUE;
-    }
-    return PR_FALSE;
-}
-
-
-/*
- * Find the best slot which supports the given set of mechanisms and key sizes.
- * In normal cases this should grab the first slot on the list with no fuss.
- * The size array is presumed to match one for one with the mechanism type 
- * array, which allows you to specify the required key size for each
- * mechanism in the list. Whether key size is in bits or bytes is mechanism
- * dependent. Typically asymetric keys are in bits and symetric keys are in 
- * bytes.
- */
-PK11SlotInfo *
-PK11_GetBestSlotMultipleWithAttributes(CK_MECHANISM_TYPE *type, 
-		CK_FLAGS *mechanismInfoFlags, unsigned int *keySize, 
-		unsigned int mech_count, void *wincx)
-{
-    PK11SlotList *list = NULL;
-    PK11SlotListElement *le ;
-    PK11SlotInfo *slot = NULL;
-    PRBool freeit = PR_FALSE;
-    PRBool listNeedLogin = PR_FALSE;
-    int i;
-    SECStatus rv;
-
-    list = PK11_GetSlotList(type[0]);
-
-    if ((list == NULL) || (list->head == NULL)) {
-	/* We need to look up all the tokens for the mechanism */
-	list = PK11_GetAllTokens(type[0],PR_FALSE,PR_TRUE,wincx);
-	freeit = PR_TRUE;
-    }
-
-    /* no one can do it! */
-    if (list == NULL) {
-	PORT_SetError(SEC_ERROR_NO_TOKEN);
-	return NULL;
-    }
-
-    PORT_SetError(0);
-
-
-    listNeedLogin = PR_FALSE;
-    for (i=0; i < mech_count; i++) {
-	if ((type[i] != CKM_FAKE_RANDOM) && 
-	    (type[i] != CKM_SHA_1) &&
-	    (type[i] != CKM_SHA224) &&
-	    (type[i] != CKM_SHA256) &&
-	    (type[i] != CKM_SHA384) &&
-	    (type[i] != CKM_SHA512) &&
-	    (type[i] != CKM_MD5) && 
-	    (type[i] != CKM_MD2)) {
-	    listNeedLogin = PR_TRUE;
-	    break;
-	}
-    }
-
-    for (le = PK11_GetFirstSafe(list); le;
-			 	le = PK11_GetNextSafe(list,le,PR_TRUE)) {
-	if (PK11_IsPresent(le->slot)) {
-	    PRBool doExit = PR_FALSE;
-	    for (i=0; i < mech_count; i++) {
-	    	if (!PK11_DoesMechanism(le->slot,type[i])) {
-		    doExit = PR_TRUE;
-		    break;
-		}
-		if ((mechanismInfoFlags && mechanismInfoFlags[i]) ||
-			(keySize && keySize[i])) {
-		    if (pk11_filterSlot(le->slot, type[i], 
-			    mechanismInfoFlags ?  mechanismInfoFlags[i] : 0,
-			    keySize ? keySize[i] : 0)) {
-			doExit = PR_TRUE;
-			break;
-		    }
-		}
-	    }
-    
-	    if (doExit) continue;
-	      
-	    if (listNeedLogin && le->slot->needLogin) {
-		rv = PK11_Authenticate(le->slot,PR_TRUE,wincx);
-		if (rv != SECSuccess) continue;
-	    }
-	    slot = le->slot;
-	    PK11_ReferenceSlot(slot);
-	    PK11_FreeSlotListElement(list,le);
-	    if (freeit) { PK11_FreeSlotList(list); }
-	    return slot;
-	}
-    }
-    if (freeit) { PK11_FreeSlotList(list); }
-    if (PORT_GetError() == 0) {
-	PORT_SetError(SEC_ERROR_NO_TOKEN);
-    }
-    return NULL;
-}
-
-PK11SlotInfo *
-PK11_GetBestSlotMultiple(CK_MECHANISM_TYPE *type, 
-			 unsigned int mech_count, void *wincx)
-{
-    return PK11_GetBestSlotMultipleWithAttributes(type, NULL, NULL, 
-						mech_count, wincx);
-}
-
-/* original get best slot now calls the multiple version with only one type */
-PK11SlotInfo *
-PK11_GetBestSlot(CK_MECHANISM_TYPE type, void *wincx)
-{
-    return PK11_GetBestSlotMultipleWithAttributes(&type, NULL, NULL, 1, wincx);
-}
-
-PK11SlotInfo *
-PK11_GetBestSlotWithAttributes(CK_MECHANISM_TYPE type, CK_FLAGS mechanismFlags,
-		unsigned int keySize, void *wincx)
-{
-    return PK11_GetBestSlotMultipleWithAttributes(&type, &mechanismFlags,
-						 &keySize, 1, wincx);
-}
-
-int
-PK11_GetBestKeyLength(PK11SlotInfo *slot,CK_MECHANISM_TYPE mechanism)
-{
-    CK_MECHANISM_INFO mechanism_info;
-    CK_RV crv;
-
-    if (!slot->isThreadSafe) PK11_EnterSlotMonitor(slot);
-    crv = PK11_GETTAB(slot)->C_GetMechanismInfo(slot->slotID,
-                               mechanism,&mechanism_info);
-    if (!slot->isThreadSafe) PK11_ExitSlotMonitor(slot);
-    if (crv != CKR_OK) return 0;
-
-    if (mechanism_info.ulMinKeySize == mechanism_info.ulMaxKeySize) 
-		return 0;
-    return mechanism_info.ulMaxKeySize;
-}
-
-
-/*
- * This function uses the existing PKCS #11 module to find the
- * longest supported key length in the preferred token for a mechanism.
- * This varies from the above function in that 1) it returns the key length
- * even for fixed key algorithms, and 2) it looks through the tokens
- * generally rather than for a specific token. This is used in liu of
- * a PK11_GetKeyLength function in pk11mech.c since we can actually read
- * supported key lengths from PKCS #11.
- *
- * For symmetric key operations the length is returned in bytes.
- */
-int
-PK11_GetMaxKeyLength(CK_MECHANISM_TYPE mechanism)
-{
-    CK_MECHANISM_INFO mechanism_info;
-    PK11SlotList *list = NULL;
-    PK11SlotListElement *le ;
-    PRBool freeit = PR_FALSE;
-    int keyLength = 0;
-
-    list = PK11_GetSlotList(mechanism);
-
-    if ((list == NULL) || (list->head == NULL)) {
-	/* We need to look up all the tokens for the mechanism */
-	list = PK11_GetAllTokens(mechanism,PR_FALSE,PR_FALSE,NULL);
-	freeit = PR_TRUE;
-    }
-
-    /* no tokens recognize this mechanism */
-    if (list == NULL) {
-	PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
-	return 0;
-    }
-
-    for (le = PK11_GetFirstSafe(list); le;
-			 	le = PK11_GetNextSafe(list,le,PR_TRUE)) {
-	PK11SlotInfo *slot = le->slot;
-	CK_RV crv;
-	if (PK11_IsPresent(slot)) {
-	    if (!slot->isThreadSafe) PK11_EnterSlotMonitor(slot);
-	    crv = PK11_GETTAB(slot)->C_GetMechanismInfo(slot->slotID,
-                               mechanism,&mechanism_info);
- 	    if (!slot->isThreadSafe) PK11_ExitSlotMonitor(slot);
-	    if ((crv == CKR_OK)  && (mechanism_info.ulMaxKeySize != 0)
-		&& (mechanism_info.ulMaxKeySize != 0xffffffff)) {
-		keyLength = mechanism_info.ulMaxKeySize;
-		break;
-	    }
-	}
-    }
-    if (le) 
-	PK11_FreeSlotListElement(list, le);
-    if (freeit) 
-	PK11_FreeSlotList(list);
-    return keyLength;
-}
-
-SECStatus
-PK11_SeedRandom(PK11SlotInfo *slot, unsigned char *data, int len) {
-    CK_RV crv;
-
-    PK11_EnterSlotMonitor(slot);
-    crv = PK11_GETTAB(slot)->C_SeedRandom(slot->session, data, (CK_ULONG)len);
-    PK11_ExitSlotMonitor(slot);
-    if (crv != CKR_OK) {
-	PORT_SetError(PK11_MapError(crv));
-	return SECFailure;
-    }
-    return SECSuccess;
-}
-
-
-SECStatus
-PK11_GenerateRandomOnSlot(PK11SlotInfo *slot, unsigned char *data, int len) {
-    CK_RV crv;
-
-    if (!slot->isInternal) PK11_EnterSlotMonitor(slot);
-    crv = PK11_GETTAB(slot)->C_GenerateRandom(slot->session,data, 
-							(CK_ULONG)len);
-    if (!slot->isInternal) PK11_ExitSlotMonitor(slot);
-    if (crv != CKR_OK) {
-	PORT_SetError(PK11_MapError(crv));
-	return  SECFailure;
-    }
-    return SECSuccess;
-}
-
-/* Attempts to update the Best Slot for "FAKE RANDOM" generation.
-** If that's not the internal slot, then it also attempts to update the
-** internal slot.
-** The return value indicates if the INTERNAL slot was updated OK.
-*/
-SECStatus
-PK11_RandomUpdate(void *data, size_t bytes)
-{
-    PK11SlotInfo *slot;
-    PRBool        bestIsInternal;
-    SECStatus     status;
-
-    slot = PK11_GetBestSlot(CKM_FAKE_RANDOM, NULL);
-    if (slot == NULL) {
-	slot = PK11_GetInternalSlot();
-	if (!slot)
-	    return SECFailure;
-    }
-
-    bestIsInternal = PK11_IsInternal(slot);
-    status = PK11_SeedRandom(slot, data, bytes);
-    PK11_FreeSlot(slot);
-
-    if (!bestIsInternal) {
-    	/* do internal slot, too. */
-    	slot = PK11_GetInternalSlot();	/* can't fail */
-	status = PK11_SeedRandom(slot, data, bytes);
-	PK11_FreeSlot(slot);
-    }
-    return status;
-}
-
-
-SECStatus
-PK11_GenerateRandom(unsigned char *data,int len) {
-    PK11SlotInfo *slot;
-    SECStatus rv;
-
-    slot = PK11_GetBestSlot(CKM_FAKE_RANDOM,NULL);
-    if (slot == NULL) return SECFailure;
-
-    rv = PK11_GenerateRandomOnSlot(slot, data, len);
-    PK11_FreeSlot(slot);
-    return rv;
-}
-
-/*
- * Reset the token to it's initial state. For the internal module, this will
- * Purge your keydb, and reset your cert db certs to USER_INIT.
- */
-SECStatus 
-PK11_ResetToken(PK11SlotInfo *slot, char *sso_pwd)
-{
-    unsigned char tokenName[32];
-    int tokenNameLen;
-    CK_RV crv;
-
-    /* reconstruct the token name */
-    tokenNameLen = PORT_Strlen(slot->token_name);
-    if (tokenNameLen > sizeof(tokenName)) {
-	tokenNameLen = sizeof(tokenName);
-    }
-
-    PORT_Memcpy(tokenName,slot->token_name,tokenNameLen);
-    if (tokenNameLen < sizeof(tokenName)) {
-	PORT_Memset(&tokenName[tokenNameLen],' ',
-					 sizeof(tokenName)-tokenNameLen);
-    }
-
-    /* initialize the token */    
-    PK11_EnterSlotMonitor(slot);
-
-    /* first shutdown the token. Existing sessions will get closed here */
-    PK11_GETTAB(slot)->C_CloseAllSessions(slot->slotID);
-    slot->session = CK_INVALID_SESSION;
-
-    /* now re-init the token */ 
-    crv = PK11_GETTAB(slot)->C_InitToken(slot->slotID,
-	(unsigned char *)sso_pwd, sso_pwd ? PORT_Strlen(sso_pwd): 0, tokenName);
-
-    /* finally bring the token back up */
-    PK11_InitToken(slot,PR_TRUE);
-    PK11_ExitSlotMonitor(slot);
-    if (crv != CKR_OK) {
-	PORT_SetError(PK11_MapError(crv));
-	return SECFailure;
-    }
-    nssTrustDomain_UpdateCachedTokenCerts(slot->nssToken->trustDomain,
-	                                      slot->nssToken);
-    return SECSuccess;
-}
-void
-PK11Slot_SetNSSToken(PK11SlotInfo *sl, NSSToken *nsst) 
-{
-    sl->nssToken = nsst;
-}
-
-NSSToken *
-PK11Slot_GetNSSToken(PK11SlotInfo *sl) 
-{
-    return sl->nssToken;
-}
-
-/*
- * wait for a token to change it's state. The application passes in the expected
- * new state in event. 
- */
-PK11TokenStatus
-PK11_WaitForTokenEvent(PK11SlotInfo *slot, PK11TokenEvent event, 
-	PRIntervalTime timeout, PRIntervalTime latency, int series)
-{
-   PRIntervalTime first_time = 0;
-   PRBool first_time_set = PR_FALSE;
-   PRBool waitForRemoval;
-
-   if (slot->isPerm) {
-	return PK11TokenNotRemovable;
-   }
-   if (latency == 0) {
-	latency = PR_SecondsToInterval(5);
-   }
-   waitForRemoval = (PRBool) (event == PK11TokenRemovedOrChangedEvent);
-
-   if (series == 0) {
-	series = PK11_GetSlotSeries(slot);
-   }
-   while (PK11_IsPresent(slot) == waitForRemoval ) {
-	PRIntervalTime interval;
-
-	if (waitForRemoval && series != PK11_GetSlotSeries(slot)) {
-	    return PK11TokenChanged;
-	}
-	if (timeout == PR_INTERVAL_NO_WAIT) {
-	    return waitForRemoval ? PK11TokenPresent : PK11TokenRemoved;
-	}
-	if (timeout != PR_INTERVAL_NO_TIMEOUT ) {
-	    interval = PR_IntervalNow();
-	    if (!first_time_set) {
-		first_time = interval;
-		first_time_set = PR_TRUE;
-	    }
-	    if ((interval-first_time) > timeout) {
-		return waitForRemoval ? PK11TokenPresent : PK11TokenRemoved;
-	    }
-	}
-	PR_Sleep(latency);
-   }
-   return waitForRemoval ? PK11TokenRemoved : PK11TokenPresent;
-}