jscript: Added Dll[Un]RegisterServer implementation.
[wine] / dlls / crypt32 / regstore.c
1 /*
2  * Copyright 2004-2007 Juan Lang
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * This library is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with this library; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
17  */
18 #include <assert.h>
19 #include <stdarg.h>
20 #include "windef.h"
21 #include "winbase.h"
22 #include "wincrypt.h"
23 #include "winreg.h"
24 #include "winuser.h"
25 #include "wine/debug.h"
26 #include "wine/list.h"
27 #include "crypt32_private.h"
28
29 WINE_DEFAULT_DEBUG_CHANNEL(crypt);
30
31 typedef struct _WINE_HASH_TO_DELETE
32 {
33     BYTE        hash[20];
34     struct list entry;
35 } WINE_HASH_TO_DELETE, *PWINE_HASH_TO_DELETE;
36
37 typedef struct _WINE_REGSTOREINFO
38 {
39     DWORD            dwOpenFlags;
40     HCERTSTORE       memStore;
41     HKEY             key;
42     BOOL             dirty;
43     CRITICAL_SECTION cs;
44     struct list      certsToDelete;
45     struct list      crlsToDelete;
46 } WINE_REGSTOREINFO, *PWINE_REGSTOREINFO;
47
48 static void CRYPT_HashToStr(const BYTE *hash, LPWSTR asciiHash)
49 {
50     static const WCHAR fmt[] = { '%','0','2','X',0 };
51     DWORD i;
52
53     assert(hash);
54     assert(asciiHash);
55
56     for (i = 0; i < 20; i++)
57         wsprintfW(asciiHash + i * 2, fmt, hash[i]);
58 }
59
60 static const WCHAR CertsW[] = { 'C','e','r','t','i','f','i','c','a','t','e','s',
61  0 };
62 static const WCHAR CRLsW[] = { 'C','R','L','s',0 };
63 static const WCHAR CTLsW[] = { 'C','T','L','s',0 };
64 static const WCHAR BlobW[] = { 'B','l','o','b',0 };
65
66 static void CRYPT_RegReadSerializedFromReg(HKEY key, DWORD contextType,
67  HCERTSTORE store)
68 {
69     LONG rc;
70     DWORD index = 0;
71     WCHAR subKeyName[MAX_PATH];
72
73     do {
74         DWORD size = sizeof(subKeyName) / sizeof(WCHAR);
75
76         rc = RegEnumKeyExW(key, index++, subKeyName, &size, NULL, NULL, NULL,
77          NULL);
78         if (!rc)
79         {
80             HKEY subKey;
81
82             rc = RegOpenKeyExW(key, subKeyName, 0, KEY_READ, &subKey);
83             if (!rc)
84             {
85                 LPBYTE buf = NULL;
86
87                 size = 0;
88                 rc = RegQueryValueExW(subKey, BlobW, NULL, NULL, NULL, &size);
89                 if (!rc)
90                     buf = CryptMemAlloc(size);
91                 if (buf)
92                 {
93                     rc = RegQueryValueExW(subKey, BlobW, NULL, NULL, buf,
94                      &size);
95                     if (!rc)
96                     {
97                         const void *context;
98                         DWORD addedType;
99
100                         TRACE("Adding cert with hash %s\n",
101                          debugstr_w(subKeyName));
102                         context = CRYPT_ReadSerializedElement(buf, size,
103                          contextType, &addedType);
104                         if (context)
105                         {
106                             const WINE_CONTEXT_INTERFACE *contextInterface;
107                             BYTE hash[20];
108
109                             switch (addedType)
110                             {
111                             case CERT_STORE_CERTIFICATE_CONTEXT:
112                                 contextInterface = pCertInterface;
113                                 break;
114                             case CERT_STORE_CRL_CONTEXT:
115                                 contextInterface = pCRLInterface;
116                                 break;
117                             case CERT_STORE_CTL_CONTEXT:
118                                 contextInterface = pCTLInterface;
119                                 break;
120                             default:
121                                 contextInterface = NULL;
122                             }
123                             if (contextInterface)
124                             {
125                                 size = sizeof(hash);
126                                 if (contextInterface->getProp(context,
127                                  CERT_HASH_PROP_ID, hash, &size))
128                                 {
129                                     WCHAR asciiHash[20 * 2 + 1];
130
131                                     CRYPT_HashToStr(hash, asciiHash);
132                                     TRACE("comparing %s\n",
133                                      debugstr_w(asciiHash));
134                                     TRACE("with %s\n", debugstr_w(subKeyName));
135                                     if (!lstrcmpW(asciiHash, subKeyName))
136                                     {
137                                         TRACE("hash matches, adding\n");
138                                         contextInterface->addContextToStore(
139                                          store, context,
140                                          CERT_STORE_ADD_REPLACE_EXISTING, NULL);
141                                     }
142                                     else
143                                         TRACE("hash doesn't match, ignoring\n");
144                                 }
145                                 contextInterface->free(context);
146                             }
147                         }
148                     }
149                     CryptMemFree(buf);
150                 }
151                 RegCloseKey(subKey);
152             }
153             /* Ignore intermediate errors, continue enumerating */
154             rc = ERROR_SUCCESS;
155         }
156     } while (!rc);
157 }
158
159 static void CRYPT_RegReadFromReg(HKEY key, HCERTSTORE store)
160 {
161     static const WCHAR * const subKeys[] = { CertsW, CRLsW, CTLsW };
162     static const DWORD contextFlags[] = { CERT_STORE_CERTIFICATE_CONTEXT_FLAG,
163      CERT_STORE_CRL_CONTEXT_FLAG, CERT_STORE_CTL_CONTEXT_FLAG };
164     DWORD i;
165
166     for (i = 0; i < sizeof(subKeys) / sizeof(subKeys[0]); i++)
167     {
168         HKEY hKey;
169         LONG rc;
170
171         rc = RegCreateKeyExW(key, subKeys[i], 0, NULL, 0, KEY_READ, NULL,
172          &hKey, NULL);
173         if (!rc)
174         {
175             CRYPT_RegReadSerializedFromReg(hKey, contextFlags[i], store);
176             RegCloseKey(hKey);
177         }
178     }
179 }
180
181 /* Hash is assumed to be 20 bytes in length (a SHA-1 hash) */
182 static BOOL CRYPT_WriteSerializedToReg(HKEY key, const BYTE *hash, const BYTE *buf,
183  DWORD len)
184 {
185     WCHAR asciiHash[20 * 2 + 1];
186     LONG rc;
187     HKEY subKey;
188     BOOL ret;
189
190     CRYPT_HashToStr(hash, asciiHash);
191     rc = RegCreateKeyExW(key, asciiHash, 0, NULL, 0, KEY_ALL_ACCESS, NULL,
192      &subKey, NULL);
193     if (!rc)
194     {
195         rc = RegSetValueExW(subKey, BlobW, 0, REG_BINARY, buf, len);
196         RegCloseKey(subKey);
197     }
198     if (!rc)
199         ret = TRUE;
200     else
201     {
202         SetLastError(rc);
203         ret = FALSE;
204     }
205     return ret;
206 }
207
208 static BOOL CRYPT_SerializeContextsToReg(HKEY key,
209  const WINE_CONTEXT_INTERFACE *contextInterface, HCERTSTORE memStore)
210 {
211     const void *context = NULL;
212     BOOL ret;
213
214     do {
215         context = contextInterface->enumContextsInStore(memStore, context);
216         if (context)
217         {
218             BYTE hash[20];
219             DWORD hashSize = sizeof(hash);
220
221             ret = contextInterface->getProp(context, CERT_HASH_PROP_ID, hash,
222              &hashSize);
223             if (ret)
224             {
225                 DWORD size = 0;
226                 LPBYTE buf = NULL;
227
228                 ret = contextInterface->serialize(context, 0, NULL, &size);
229                 if (size)
230                     buf = CryptMemAlloc(size);
231                 if (buf)
232                 {
233                     ret = contextInterface->serialize(context, 0, buf, &size);
234                     if (ret)
235                         ret = CRYPT_WriteSerializedToReg(key, hash, buf, size);
236                 }
237                 CryptMemFree(buf);
238             }
239         }
240         else
241             ret = TRUE;
242     } while (ret && context != NULL);
243     if (context)
244         contextInterface->free(context);
245     return ret;
246 }
247
248 static BOOL CRYPT_RegWriteToReg(PWINE_REGSTOREINFO store)
249 {
250     static const WCHAR * const subKeys[] = { CertsW, CRLsW, CTLsW };
251     const WINE_CONTEXT_INTERFACE * const interfaces[] = { pCertInterface,
252      pCRLInterface, pCTLInterface };
253     struct list *listToDelete[] = { &store->certsToDelete, &store->crlsToDelete,
254      NULL };
255     BOOL ret = TRUE;
256     DWORD i;
257
258     for (i = 0; ret && i < sizeof(subKeys) / sizeof(subKeys[0]); i++)
259     {
260         HKEY key;
261         LONG rc = RegCreateKeyExW(store->key, subKeys[i], 0, NULL, 0,
262          KEY_ALL_ACCESS, NULL, &key, NULL);
263
264         if (!rc)
265         {
266             if (listToDelete[i])
267             {
268                 PWINE_HASH_TO_DELETE toDelete, next;
269                 WCHAR asciiHash[20 * 2 + 1];
270
271                 EnterCriticalSection(&store->cs);
272                 LIST_FOR_EACH_ENTRY_SAFE(toDelete, next, listToDelete[i],
273                  WINE_HASH_TO_DELETE, entry)
274                 {
275                     LONG rc;
276
277                     CRYPT_HashToStr(toDelete->hash, asciiHash);
278                     TRACE("Removing %s\n", debugstr_w(asciiHash));
279                     rc = RegDeleteKeyW(key, asciiHash);
280                     if (rc != ERROR_SUCCESS && rc != ERROR_FILE_NOT_FOUND)
281                     {
282                         SetLastError(rc);
283                         ret = FALSE;
284                     }
285                     list_remove(&toDelete->entry);
286                     CryptMemFree(toDelete);
287                 }
288                 LeaveCriticalSection(&store->cs);
289             }
290             ret = CRYPT_SerializeContextsToReg(key, interfaces[i],
291              store->memStore);
292             RegCloseKey(key);
293         }
294         else
295         {
296             SetLastError(rc);
297             ret = FALSE;
298         }
299     }
300     return ret;
301 }
302
303 /* If force is true or the registry store is dirty, writes the contents of the
304  * store to the registry.
305  */
306 static BOOL CRYPT_RegFlushStore(PWINE_REGSTOREINFO store, BOOL force)
307 {
308     BOOL ret;
309
310     TRACE("(%p, %d)\n", store, force);
311
312     if (store->dirty || force)
313         ret = CRYPT_RegWriteToReg(store);
314     else
315         ret = TRUE;
316     return ret;
317 }
318
319 static void WINAPI CRYPT_RegCloseStore(HCERTSTORE hCertStore, DWORD dwFlags)
320 {
321     PWINE_REGSTOREINFO store = (PWINE_REGSTOREINFO)hCertStore;
322
323     TRACE("(%p, %08x)\n", store, dwFlags);
324     if (dwFlags)
325         FIXME("Unimplemented flags: %08x\n", dwFlags);
326
327     CRYPT_RegFlushStore(store, FALSE);
328     RegCloseKey(store->key);
329     store->cs.DebugInfo->Spare[0] = 0;
330     DeleteCriticalSection(&store->cs);
331     CryptMemFree(store);
332 }
333
334 static BOOL WINAPI CRYPT_RegWriteContext(PWINE_REGSTOREINFO store,
335  const void *context, DWORD dwFlags)
336 {
337     BOOL ret;
338
339     if (dwFlags & CERT_STORE_PROV_WRITE_ADD_FLAG)
340     {
341         store->dirty = TRUE;
342         ret = TRUE;
343     }
344     else
345         ret = FALSE;
346     return ret;
347 }
348
349 static BOOL CRYPT_RegDeleteContext(PWINE_REGSTOREINFO store,
350  struct list *deleteList, const void *context,
351  PCWINE_CONTEXT_INTERFACE contextInterface)
352 {
353     BOOL ret;
354
355     if (store->dwOpenFlags & CERT_STORE_READONLY_FLAG)
356     {
357         SetLastError(ERROR_ACCESS_DENIED);
358         ret = FALSE;
359     }
360     else
361     {
362         PWINE_HASH_TO_DELETE toDelete =
363          CryptMemAlloc(sizeof(WINE_HASH_TO_DELETE));
364
365         if (toDelete)
366         {
367             DWORD size = sizeof(toDelete->hash);
368
369             ret = contextInterface->getProp(context, CERT_HASH_PROP_ID,
370              toDelete->hash, &size);
371             if (ret)
372             {
373                 EnterCriticalSection(&store->cs);
374                 list_add_tail(deleteList, &toDelete->entry);
375                 LeaveCriticalSection(&store->cs);
376             }
377             else
378             {
379                 CryptMemFree(toDelete);
380                 ret = FALSE;
381             }
382         }
383         else
384             ret = FALSE;
385         if (ret)
386             store->dirty = TRUE;
387     }
388     return ret;
389 }
390
391 static BOOL WINAPI CRYPT_RegWriteCert(HCERTSTORE hCertStore,
392  PCCERT_CONTEXT cert, DWORD dwFlags)
393 {
394     PWINE_REGSTOREINFO store = (PWINE_REGSTOREINFO)hCertStore;
395
396     TRACE("(%p, %p, %d)\n", hCertStore, cert, dwFlags);
397
398     return CRYPT_RegWriteContext(store, cert, dwFlags);
399 }
400
401 static BOOL WINAPI CRYPT_RegDeleteCert(HCERTSTORE hCertStore,
402  PCCERT_CONTEXT pCertContext, DWORD dwFlags)
403 {
404     PWINE_REGSTOREINFO store = (PWINE_REGSTOREINFO)hCertStore;
405
406     TRACE("(%p, %p, %08x)\n", store, pCertContext, dwFlags);
407
408     return CRYPT_RegDeleteContext(store, &store->certsToDelete, pCertContext,
409      pCertInterface);
410 }
411
412 static BOOL WINAPI CRYPT_RegWriteCRL(HCERTSTORE hCertStore,
413  PCCRL_CONTEXT crl, DWORD dwFlags)
414 {
415     PWINE_REGSTOREINFO store = (PWINE_REGSTOREINFO)hCertStore;
416
417     TRACE("(%p, %p, %d)\n", hCertStore, crl, dwFlags);
418
419     return CRYPT_RegWriteContext(store, crl, dwFlags);
420 }
421
422 static BOOL WINAPI CRYPT_RegDeleteCRL(HCERTSTORE hCertStore,
423  PCCRL_CONTEXT pCrlContext, DWORD dwFlags)
424 {
425     PWINE_REGSTOREINFO store = (PWINE_REGSTOREINFO)hCertStore;
426
427     TRACE("(%p, %p, %08x)\n", store, pCrlContext, dwFlags);
428
429     return CRYPT_RegDeleteContext(store, &store->crlsToDelete, pCrlContext,
430      pCRLInterface);
431 }
432
433 static BOOL WINAPI CRYPT_RegControl(HCERTSTORE hCertStore, DWORD dwFlags,
434  DWORD dwCtrlType, void const *pvCtrlPara)
435 {
436     PWINE_REGSTOREINFO store = (PWINE_REGSTOREINFO)hCertStore;
437     BOOL ret;
438
439     TRACE("(%p, %08x, %d, %p)\n", hCertStore, dwFlags, dwCtrlType,
440      pvCtrlPara);
441
442     switch (dwCtrlType)
443     {
444     case CERT_STORE_CTRL_RESYNC:
445     {
446         HCERTSTORE memStore = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
447          CERT_STORE_CREATE_NEW_FLAG, NULL);
448
449         CRYPT_RegFlushStore(store, FALSE);
450         CRYPT_RegReadFromReg(store->key, memStore);
451         I_CertUpdateStore(store->memStore, memStore, 0, 0);
452         CertCloseStore(memStore, 0);
453         ret = TRUE;
454         break;
455     }
456     case CERT_STORE_CTRL_COMMIT:
457         ret = CRYPT_RegFlushStore(store,
458          dwFlags & CERT_STORE_CTRL_COMMIT_FORCE_FLAG);
459         break;
460     default:
461         FIXME("%d: stub\n", dwCtrlType);
462         ret = FALSE;
463     }
464     return ret;
465 }
466
467 static void *regProvFuncs[] = {
468     CRYPT_RegCloseStore,
469     NULL, /* CERT_STORE_PROV_READ_CERT_FUNC */
470     CRYPT_RegWriteCert,
471     CRYPT_RegDeleteCert,
472     NULL, /* CERT_STORE_PROV_SET_CERT_PROPERTY_FUNC */
473     NULL, /* CERT_STORE_PROV_READ_CRL_FUNC */
474     CRYPT_RegWriteCRL,
475     CRYPT_RegDeleteCRL,
476     NULL, /* CERT_STORE_PROV_SET_CRL_PROPERTY_FUNC */
477     NULL, /* CERT_STORE_PROV_READ_CTL_FUNC */
478     NULL, /* CERT_STORE_PROV_WRITE_CTL_FUNC */
479     NULL, /* CERT_STORE_PROV_DELETE_CTL_FUNC */
480     NULL, /* CERT_STORE_PROV_SET_CTL_PROPERTY_FUNC */
481     CRYPT_RegControl,
482 };
483
484 PWINECRYPT_CERTSTORE CRYPT_RegOpenStore(HCRYPTPROV hCryptProv, DWORD dwFlags,
485  const void *pvPara)
486 {
487     PWINECRYPT_CERTSTORE store = NULL;
488
489     TRACE("(%ld, %08x, %p)\n", hCryptProv, dwFlags, pvPara);
490
491     if (dwFlags & CERT_STORE_DELETE_FLAG)
492     {
493         DWORD rc = RegDeleteTreeW((HKEY)pvPara, CertsW);
494
495         if (rc == ERROR_SUCCESS || rc == ERROR_NO_MORE_ITEMS)
496             rc = RegDeleteTreeW((HKEY)pvPara, CRLsW);
497         if (rc == ERROR_SUCCESS || rc == ERROR_NO_MORE_ITEMS)
498             rc = RegDeleteTreeW((HKEY)pvPara, CTLsW);
499         if (rc == ERROR_NO_MORE_ITEMS)
500             rc = ERROR_SUCCESS;
501         SetLastError(rc);
502     }
503     else
504     {
505         HKEY key;
506
507         if (DuplicateHandle(GetCurrentProcess(), (HANDLE)pvPara,
508          GetCurrentProcess(), (LPHANDLE)&key,
509          dwFlags & CERT_STORE_READONLY_FLAG ? KEY_READ : KEY_ALL_ACCESS,
510          TRUE, 0))
511         {
512             PWINECRYPT_CERTSTORE memStore;
513
514             memStore = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, hCryptProv,
515              CERT_STORE_CREATE_NEW_FLAG, NULL);
516             if (memStore)
517             {
518                 PWINE_REGSTOREINFO regInfo = CryptMemAlloc(
519                  sizeof(WINE_REGSTOREINFO));
520
521                 if (regInfo)
522                 {
523                     CERT_STORE_PROV_INFO provInfo = { 0 };
524
525                     regInfo->dwOpenFlags = dwFlags;
526                     regInfo->memStore = memStore;
527                     regInfo->key = key;
528                     InitializeCriticalSection(&regInfo->cs);
529                     regInfo->cs.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": PWINE_REGSTOREINFO->cs");
530                     list_init(&regInfo->certsToDelete);
531                     list_init(&regInfo->crlsToDelete);
532                     CRYPT_RegReadFromReg(regInfo->key, regInfo->memStore);
533                     regInfo->dirty = FALSE;
534                     provInfo.cbSize = sizeof(provInfo);
535                     provInfo.cStoreProvFunc = sizeof(regProvFuncs) /
536                      sizeof(regProvFuncs[0]);
537                     provInfo.rgpvStoreProvFunc = regProvFuncs;
538                     provInfo.hStoreProv = regInfo;
539                     store = CRYPT_ProvCreateStore(dwFlags, memStore, &provInfo);
540                     /* Reg store doesn't need crypto provider, so close it */
541                     if (hCryptProv &&
542                      !(dwFlags & CERT_STORE_NO_CRYPT_RELEASE_FLAG))
543                         CryptReleaseContext(hCryptProv, 0);
544                 }
545             }
546         }
547     }
548     TRACE("returning %p\n", store);
549     return store;
550 }