зеркало из https://github.com/mozilla/gecko-dev.git
240 строки
6.7 KiB
C
240 строки
6.7 KiB
C
/*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is the Netscape security libraries.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1994-2000 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the
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* terms of the GNU General Public License Version 2 or later (the
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* "GPL"), in which case the provisions of the GPL are applicable
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* instead of those above. If you wish to allow use of your
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* version of this file only under the terms of the GPL and not to
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* allow others to use your version of this file under the MPL,
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* indicate your decision by deleting the provisions above and
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* replace them with the notice and other provisions required by
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* the GPL. If you do not delete the provisions above, a recipient
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* may use your version of this file under either the MPL or the
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* GPL.
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*/
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/*
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* The following handles the loading, unloading and management of
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* various PCKS #11 modules
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*/
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#include "seccomon.h"
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#include "pkcs11.h"
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#include "secmod.h"
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#include "prlink.h"
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#include "pk11func.h"
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#include "secmodi.h"
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#include "prlock.h"
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extern void FC_GetFunctionList(void);
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extern void NSC_GetFunctionList(void);
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/* build the PKCS #11 2.01 lock files */
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CK_RV PR_CALLBACK secmodCreateMutext(CK_VOID_PTR_PTR pmutex) {
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*pmutex = (CK_VOID_PTR) PR_NewLock();
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if ( *pmutex ) return CKR_OK;
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return CKR_HOST_MEMORY;
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}
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CK_RV PR_CALLBACK secmodDestroyMutext(CK_VOID_PTR mutext) {
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PR_DestroyLock((PRLock *)mutext);
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return CKR_OK;
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}
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CK_RV PR_CALLBACK secmodLockMutext(CK_VOID_PTR mutext) {
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PR_Lock((PRLock *)mutext);
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return CKR_OK;
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}
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CK_RV PR_CALLBACK secmodUnlockMutext(CK_VOID_PTR mutext) {
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PR_Unlock((PRLock *)mutext);
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return CKR_OK;
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}
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static SECMODModuleID nextModuleID = 1;
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static CK_C_INITIALIZE_ARGS secmodLockFunctions = {
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secmodCreateMutext, secmodDestroyMutext, secmodLockMutext,
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secmodUnlockMutext, CKF_LIBRARY_CANT_CREATE_OS_THREADS|
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CKF_OS_LOCKING_OK
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,NULL
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};
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/*
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* load a new module into our address space and initialize it.
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*/
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SECStatus
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SECMOD_LoadModule(SECMODModule *mod) {
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PRLibrary *library = NULL;
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CK_C_GetFunctionList entry;
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char * full_name;
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CK_INFO info;
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CK_ULONG slotCount = 0;
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if (mod->loaded) return SECSuccess;
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/* intenal modules get loaded from their internal list */
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if (mod->internal) {
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/* internal, statically get the C_GetFunctionList function */
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if (mod->isFIPS) {
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entry = (CK_C_GetFunctionList) FC_GetFunctionList;
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} else {
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entry = (CK_C_GetFunctionList) NSC_GetFunctionList;
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}
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} else {
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/* Not internal, load the DLL and look up C_GetFunctionList */
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if (mod->dllName == NULL) {
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return SECFailure;
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}
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#ifdef notdef
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/* look up the library name */
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full_name = PR_GetLibraryName(PR_GetLibraryPath(),mod->dllName);
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if (full_name == NULL) {
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return SECFailure;
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}
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#else
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full_name = PORT_Strdup(mod->dllName);
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#endif
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/* load the library. If this succeeds, then we have to remember to
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* unload the library if anything goes wrong from here on out...
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*/
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library = PR_LoadLibrary(full_name);
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mod->library = (void *)library;
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PORT_Free(full_name);
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if (library == NULL) {
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return SECFailure;
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}
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/*
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* now we need to get the entry point to find the function pointers
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*/
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entry = (CK_C_GetFunctionList)
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PR_FindSymbol(library, "C_GetFunctionList");
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if (entry == NULL) {
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PR_UnloadLibrary(library);
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return SECFailure;
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}
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}
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/*
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* We need to get the function list
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*/
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if ((*entry)((CK_FUNCTION_LIST_PTR *)&mod->functionList) != CKR_OK)
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goto fail;
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mod->isThreadSafe = PR_TRUE;
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/* Now we initialize the module */
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if (PK11_GETTAB(mod)->C_Initialize(&secmodLockFunctions) != CKR_OK) {
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mod->isThreadSafe = PR_FALSE;
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if (PK11_GETTAB(mod)->C_Initialize(NULL) != CKR_OK) goto fail;
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}
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/* check the version number */
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if (PK11_GETTAB(mod)->C_GetInfo(&info) != CKR_OK) goto fail2;
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if (info.cryptokiVersion.major != 2) goto fail2;
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/* all 2.0 are a priori *not* thread safe */
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if (info.cryptokiVersion.minor < 1) mod->isThreadSafe = PR_FALSE;
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/* If we don't have a common name, get it from the PKCS 11 module */
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if ((mod->commonName == NULL) || (mod->commonName[0] == 0)) {
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mod->commonName = PK11_MakeString(mod->arena,NULL,
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(char *)info.libraryDescription, sizeof(info.libraryDescription));
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if (mod->commonName == NULL) goto fail2;
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}
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/* initialize the Slots */
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if (PK11_GETTAB(mod)->C_GetSlotList(CK_FALSE, NULL, &slotCount) == CKR_OK) {
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CK_SLOT_ID *slotIDs;
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int i;
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CK_RV rv;
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mod->slots = (PK11SlotInfo **)PORT_ArenaAlloc(mod->arena,
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sizeof(PK11SlotInfo *) * slotCount);
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if (mod->slots == NULL) goto fail2;
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slotIDs = (CK_SLOT_ID *) PORT_Alloc(sizeof(CK_SLOT_ID)*slotCount);
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if (slotIDs == NULL) {
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goto fail2;
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}
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rv = PK11_GETTAB(mod)->C_GetSlotList(CK_FALSE, slotIDs, &slotCount);
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if (rv != CKR_OK) {
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PORT_Free(slotIDs);
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goto fail2;
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}
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/* Initialize each slot */
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for (i=0; i < (int)slotCount; i++) {
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mod->slots[i] = PK11_NewSlotInfo();
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PK11_InitSlot(mod,slotIDs[i],mod->slots[i]);
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/* look down the slot info table */
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PK11_LoadSlotList(mod->slots[i],mod->slotInfo,mod->slotInfoCount);
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}
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mod->slotCount = slotCount;
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mod->slotInfoCount = 0;
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PORT_Free(slotIDs);
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}
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mod->loaded = PR_TRUE;
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mod->moduleID = nextModuleID++;
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return SECSuccess;
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fail2:
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PK11_GETTAB(mod)->C_Finalize(NULL);
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fail:
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mod->functionList = NULL;
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if (library) PR_UnloadLibrary(library);
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return SECFailure;
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}
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SECStatus
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SECMOD_UnloadModule(SECMODModule *mod) {
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PRLibrary *library;
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if (!mod->loaded) {
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return SECFailure;
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}
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PK11_GETTAB(mod)->C_Finalize(NULL);
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mod->moduleID = 0;
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mod->loaded = PR_FALSE;
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/* do we want the semantics to allow unloading the internal library?
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* if not, we should change this to SECFailure and move it above the
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* mod->loaded = PR_FALSE; */
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if (mod->internal) {
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return SECSuccess;
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}
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library = (PRLibrary *)mod->library;
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/* paranoia */
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if (library == NULL) {
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return SECFailure;
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}
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PR_UnloadLibrary(library);
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return SECSuccess;
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}
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