+++ /dev/null
-/*
- * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved.
- *
- * The contents of this file constitute Original Code as defined in and are
- * subject to the Apple Public Source License Version 1.2 (the 'License').
- * You may not use this file except in compliance with the License. Please obtain
- * a copy of the License at http://www.apple.com/publicsource and read it before
- * using this file.
- *
- * This Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
- * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
- * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
- * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
- * specific language governing rights and limitations under the License.
- */
-
-
-/*
- * ModuleAttacher.cpp
- *
- * Process-wide class which loads and attaches to {CSP, TP, CL} at most
- * once, and detaches and unloads the modules when this code is unloaded.
- */
-
-#include "ModuleAttacher.h"
-#include "sslDebug.h"
-#include "appleCdsa.h"
-#include <Security/globalizer.h>
-#include <Security/threading.h>
-#include <Security/cssmalloc.h>
-#include <Security/cssmapple.h>
-#include <Security/cssmtype.h>
-#include <Security/cssmapi.h>
-
-class ModuleAttacher
-{
-public:
- ModuleAttacher() :
- mCspHand(CSSM_INVALID_HANDLE),
- mClHand(CSSM_INVALID_HANDLE),
- mTpHand(CSSM_INVALID_HANDLE),
- mCssmInitd(false)
- { }
- ~ModuleAttacher();
- CSSM_CSP_HANDLE getCspHand();
- CSSM_CL_HANDLE getClHand();
- CSSM_TP_HANDLE getTpHand();
- CSSM_RETURN loadAllModules(
- CSSM_CSP_HANDLE &cspHand,
- CSSM_CL_HANDLE &clHand,
- CSSM_TP_HANDLE &tpHand);
-
-private:
- /* on all private member functions, mLock held on entry and exit */
- bool initCssm();
- CSSM_HANDLE loadModule(
- CSSM_SERVICE_TYPE svcType, // CSSM_SERVICE_CSP, etc.
- const CSSM_GUID *guid,
- const char *modName);
- void unloadModule(
- CSSM_HANDLE hand,
- const CSSM_GUID *guid);
-
- /* connection to modules, evaluated lazily */
- CSSM_CSP_HANDLE mCspHand;
- CSSM_TP_HANDLE mClHand;
- CSSM_TP_HANDLE mTpHand;
- bool mCssmInitd;
- Mutex mLock;
-};
-
-/* the single global thing */
-static ModuleNexus<ModuleAttacher> moduleAttacher;
-
-static const CSSM_API_MEMORY_FUNCS CA_memFuncs = {
- stAppMalloc,
- stAppFree,
- stAppRealloc,
- stAppCalloc,
- NULL
-};
-
-
-/*
- * This only gets called when cspAttacher get deleted, i.e., when this code
- * is actually unloaded from the process's address space.
- */
-ModuleAttacher::~ModuleAttacher()
-{
- StLock<Mutex> _(mLock);
-
- if(mCspHand != CSSM_INVALID_HANDLE) {
- unloadModule(mCspHand, &gGuidAppleCSP);
- }
- if(mTpHand != CSSM_INVALID_HANDLE) {
- unloadModule(mTpHand, &gGuidAppleX509TP);
- }
- if(mClHand != CSSM_INVALID_HANDLE) {
- unloadModule(mClHand, &gGuidAppleX509CL);
- }
-}
-
-static const CSSM_VERSION cssmVers = {2, 0};
-static const CSSM_GUID testGuid = { 0xFADE, 0, 0, { 1,2,3,4,5,6,7,0 }};
-
-bool ModuleAttacher::initCssm()
-{
- CSSM_RETURN crtn;
- CSSM_PVC_MODE pvcPolicy = CSSM_PVC_NONE;
-
- if(mCssmInitd) {
- return true;
- }
- crtn = CSSM_Init (&cssmVers,
- CSSM_PRIVILEGE_SCOPE_NONE,
- &testGuid,
- CSSM_KEY_HIERARCHY_NONE,
- &pvcPolicy,
- NULL /* reserved */);
- if(crtn != CSSM_OK) {
- #ifndef NDEBUG
- sslErrorLog("CSSM_Init returned %s", stCssmErrToStr(crtn));
- #endif
- return false;
- }
- else {
- mCssmInitd = true;
- return true;
- }
-}
-
-CSSM_HANDLE ModuleAttacher::loadModule(
- CSSM_SERVICE_TYPE svcType, // CSSM_SERVICE_CSP, etc.
- const CSSM_GUID *guid,
- const char *modName)
-{
- CSSM_RETURN crtn;
- CSSM_HANDLE hand;
-
- if(!initCssm()) {
- return CSSM_INVALID_HANDLE;
- }
- crtn = CSSM_ModuleLoad(guid,
- CSSM_KEY_HIERARCHY_NONE,
- NULL, // eventHandler
- NULL); // AppNotifyCallbackCtx
- if(crtn) {
- #ifndef NDEBUG
- sslErrorLog("ModuleAttacher::loadModule: error (%s) loading %s\n",
- stCssmErrToStr(crtn), modName);
- #endif
- return CSSM_INVALID_HANDLE;
- }
- crtn = CSSM_ModuleAttach (guid,
- &cssmVers,
- &CA_memFuncs, // memFuncs
- 0, // SubserviceID
- svcType, // SubserviceFlags
- 0, // AttachFlags
- CSSM_KEY_HIERARCHY_NONE,
- NULL, // FunctionTable
- 0, // NumFuncTable
- NULL, // reserved
- &hand);
- if(crtn) {
- #ifndef NDEBUG
- sslErrorLog("ModuleAttacher::loadModule: error (%s) attaching to %s\n",
- stCssmErrToStr(crtn), modName);
- #endif
- return CSSM_INVALID_HANDLE;
- }
- return hand;
-}
-
-void ModuleAttacher::unloadModule(
- CSSM_HANDLE hand,
- const CSSM_GUID *guid)
-{
- CSSM_ModuleDetach(hand);
- CSSM_ModuleUnload(guid, NULL, NULL);
-}
-
-CSSM_CSP_HANDLE ModuleAttacher::getCspHand()
-{
- StLock<Mutex> _(mLock);
-
- if(mCspHand != CSSM_INVALID_HANDLE) {
- /* already connected */
- return mCspHand;
- }
- mCspHand = loadModule(CSSM_SERVICE_CSP, &gGuidAppleCSP, "AppleCSP");
- return mCspHand;
-}
-
-CSSM_CL_HANDLE ModuleAttacher::getClHand()
-{
- StLock<Mutex> _(mLock);
-
- if(mClHand != CSSM_INVALID_HANDLE) {
- /* already connected */
- return mClHand;
- }
- mClHand = loadModule(CSSM_SERVICE_CL, &gGuidAppleX509CL, "AppleCL");
- return mClHand;
-}
-
-CSSM_TP_HANDLE ModuleAttacher::getTpHand()
-{
- StLock<Mutex> _(mLock);
-
- if(mTpHand != CSSM_INVALID_HANDLE) {
- /* already connected */
- return mTpHand;
- }
- mTpHand = loadModule(CSSM_SERVICE_TP, &gGuidAppleX509TP, "AppleTP");
- return mTpHand;
-}
-
-CSSM_RETURN ModuleAttacher::loadAllModules(
- CSSM_CSP_HANDLE &cspHand,
- CSSM_CL_HANDLE &clHand,
- CSSM_TP_HANDLE &tpHand)
-{
- StLock<Mutex> _(mLock);
-
- if(mCspHand == CSSM_INVALID_HANDLE) {
- mCspHand = loadModule(CSSM_SERVICE_CSP, &gGuidAppleCSP, "AppleCSP");
- if(mCspHand == CSSM_INVALID_HANDLE) {
- return CSSMERR_CSSM_ADDIN_LOAD_FAILED;
- }
- }
- if(mClHand == CSSM_INVALID_HANDLE) {
- mClHand = loadModule(CSSM_SERVICE_CL, &gGuidAppleX509CL, "AppleCL");
- if(mClHand == CSSM_INVALID_HANDLE) {
- return CSSMERR_CSSM_ADDIN_LOAD_FAILED;
- }
- }
- if(mTpHand == CSSM_INVALID_HANDLE) {
- mTpHand = loadModule(CSSM_SERVICE_TP, &gGuidAppleX509TP, "AppleTP");
- if(mTpHand == CSSM_INVALID_HANDLE) {
- return CSSMERR_CSSM_ADDIN_LOAD_FAILED;
- }
- }
- cspHand = mCspHand;
- clHand = mClHand;
- tpHand = mTpHand;
- return CSSM_OK;
-}
-
-/* public C function to load and attach to all three modules */
-CSSM_RETURN attachToModules(
- CSSM_CSP_HANDLE *cspHand,
- CSSM_CL_HANDLE *clHand,
- CSSM_TP_HANDLE *tpHand)
-{
- return moduleAttacher().loadAllModules(*cspHand, *clHand, *tpHand);
-}
-
projects / apple / security.git / blobdiff