git.oblomov.eu Git - wine/blob - dlls/crypt32/collectionstore.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 <stdarg.h>
  19 #include "windef.h"
  20 #include "winbase.h"
  21 #include "wincrypt.h"
  22 #include "wine/debug.h"
  23 #include "wine/list.h"
  24 #include "crypt32_private.h"
  25
  26 WINE_DEFAULT_DEBUG_CHANNEL(crypt);
  27
  28 typedef struct _WINE_STORE_LIST_ENTRY
  29 {
  30     PWINECRYPT_CERTSTORE store;
  31     DWORD                dwUpdateFlags;
  32     DWORD                dwPriority;
  33     struct list          entry;
  34 } WINE_STORE_LIST_ENTRY, *PWINE_STORE_LIST_ENTRY;
  35
  36 typedef struct _WINE_COLLECTIONSTORE
  37 {
  38     WINECRYPT_CERTSTORE hdr;
  39     CRITICAL_SECTION    cs;
  40     struct list         stores;
  41 } WINE_COLLECTIONSTORE, *PWINE_COLLECTIONSTORE;
  42
  43 static void WINAPI CRYPT_CollectionCloseStore(HCERTSTORE store, DWORD dwFlags)
  44 {
  45     PWINE_COLLECTIONSTORE cs = store;
  46     PWINE_STORE_LIST_ENTRY entry, next;
  47
  48     TRACE("(%p, %08x)\n", store, dwFlags);
  49
  50     LIST_FOR_EACH_ENTRY_SAFE(entry, next, &cs->stores, WINE_STORE_LIST_ENTRY,
  51      entry)
  52     {
  53         TRACE("closing %p\n", entry);
  54         CertCloseStore(entry->store, dwFlags);
  55         CryptMemFree(entry);
  56     }
  57     cs->cs.DebugInfo->Spare[0] = 0;
  58     DeleteCriticalSection(&cs->cs);
  59     CRYPT_FreeStore(store);
  60 }
  61
  62 static void *CRYPT_CollectionCreateContextFromChild(PWINE_COLLECTIONSTORE store,
  63  PWINE_STORE_LIST_ENTRY storeEntry, void *child, size_t contextSize,
  64  BOOL addRef)
  65 {
  66     void *ret = Context_CreateLinkContext(contextSize, child,
  67      sizeof(PWINE_STORE_LIST_ENTRY), addRef);
  68
  69     if (ret)
  70         *(PWINE_STORE_LIST_ENTRY *)Context_GetExtra(ret, contextSize)
  71          = storeEntry;
  72
  73     return ret;
  74 }
  75
  76 static BOOL CRYPT_CollectionAddContext(PWINE_COLLECTIONSTORE store,
  77  unsigned int contextFuncsOffset, void *context, void *toReplace, unsigned int contextSize,
  78  void **pChildContext)
  79 {
  80     BOOL ret;
  81     void *childContext = NULL;
  82     PWINE_STORE_LIST_ENTRY storeEntry = NULL;
  83
  84     TRACE("(%p, %d, %p, %p, %d)\n", store, contextFuncsOffset, context,
  85      toReplace, contextSize);
  86
  87     ret = FALSE;
  88     if (toReplace)
  89     {
  90         void *existingLinked = Context_GetLinkedContext(toReplace, contextSize);
  91         PCONTEXT_FUNCS contextFuncs;
  92
  93         storeEntry = *(PWINE_STORE_LIST_ENTRY *)Context_GetExtra(toReplace,
  94          contextSize);
  95         contextFuncs = (PCONTEXT_FUNCS)((LPBYTE)storeEntry->store +
  96          contextFuncsOffset);
  97         ret = contextFuncs->addContext(storeEntry->store, context,
  98          existingLinked, (const void **)&childContext);
  99     }
 100     else
 101     {
 102         PWINE_STORE_LIST_ENTRY entry, next;
 103
 104         EnterCriticalSection(&store->cs);
 105         LIST_FOR_EACH_ENTRY_SAFE(entry, next, &store->stores,
 106          WINE_STORE_LIST_ENTRY, entry)
 107         {
 108             if (entry->dwUpdateFlags & CERT_PHYSICAL_STORE_ADD_ENABLE_FLAG)
 109             {
 110                 PCONTEXT_FUNCS contextFuncs = (PCONTEXT_FUNCS)(
 111                  (LPBYTE)entry->store + contextFuncsOffset);
 112
 113                 storeEntry = entry;
 114                 ret = contextFuncs->addContext(entry->store, context, NULL,
 115                  (const void **)&childContext);
 116                 break;
 117             }
 118         }
 119         LeaveCriticalSection(&store->cs);
 120         if (!storeEntry)
 121             SetLastError(E_ACCESSDENIED);
 122     }
 123     *pChildContext = childContext;
 124     return ret;
 125 }
 126
 127 /* Advances a collection enumeration by one context, if possible, where
 128  * advancing means:
 129  * - calling the current store's enumeration function once, and returning
 130  *   the enumerated context if one is returned
 131  * - moving to the next store if the current store has no more items, and
 132  *   recursively calling itself to get the next item.
 133  * Returns NULL if the collection contains no more items or on error.
 134  * Assumes the collection store's lock is held.
 135  */
 136 static void *CRYPT_CollectionAdvanceEnum(PWINE_COLLECTIONSTORE store,
 137  PWINE_STORE_LIST_ENTRY storeEntry, PCONTEXT_FUNCS contextFuncs,
 138  PCWINE_CONTEXT_INTERFACE contextInterface, void *pPrev, size_t contextSize)
 139 {
 140     void *ret, *child;
 141     struct list *storeNext = list_next(&store->stores, &storeEntry->entry);
 142
 143     TRACE("(%p, %p, %p)\n", store, storeEntry, pPrev);
 144
 145     if (pPrev)
 146     {
 147         /* Ref-counting funny business: "duplicate" (addref) the child, because
 148          * the free(pPrev) below can cause the ref count to become negative.
 149          */
 150         child = Context_GetLinkedContext(pPrev, contextSize);
 151         contextInterface->duplicate(child);
 152         child = contextFuncs->enumContext(storeEntry->store, child);
 153         contextInterface->free(pPrev);
 154         pPrev = NULL;
 155     }
 156     else
 157         child = contextFuncs->enumContext(storeEntry->store, NULL);
 158     if (child)
 159         ret = CRYPT_CollectionCreateContextFromChild(store, storeEntry, child,
 160          contextSize, FALSE);
 161     else
 162     {
 163         if (storeNext)
 164         {
 165             /* We always want the same function pointers (from certs, crls)
 166              * in the next store, so use the same offset into the next store.
 167              */
 168             size_t offset = (LPBYTE)contextFuncs - (LPBYTE)storeEntry->store;
 169             PWINE_STORE_LIST_ENTRY storeNextEntry =
 170              LIST_ENTRY(storeNext, WINE_STORE_LIST_ENTRY, entry);
 171             PCONTEXT_FUNCS storeNextContexts =
 172              (PCONTEXT_FUNCS)((LPBYTE)storeNextEntry->store + offset);
 173
 174             ret = CRYPT_CollectionAdvanceEnum(store, storeNextEntry,
 175              storeNextContexts, contextInterface, NULL, contextSize);
 176         }
 177         else
 178         {
 179             SetLastError(CRYPT_E_NOT_FOUND);
 180             ret = NULL;
 181         }
 182     }
 183     TRACE("returning %p\n", ret);
 184     return ret;
 185 }
 186
 187 static BOOL CRYPT_CollectionAddCert(PWINECRYPT_CERTSTORE store, void *cert,
 188  void *toReplace, const void **ppStoreContext)
 189 {
 190     BOOL ret;
 191     void *childContext = NULL;
 192     PWINE_COLLECTIONSTORE cs = (PWINE_COLLECTIONSTORE)store;
 193
 194     ret = CRYPT_CollectionAddContext(cs, offsetof(WINECRYPT_CERTSTORE, certs),
 195      cert, toReplace, sizeof(CERT_CONTEXT), &childContext);
 196     if (ppStoreContext && childContext)
 197     {
 198         PWINE_STORE_LIST_ENTRY storeEntry = *(PWINE_STORE_LIST_ENTRY *)
 199          Context_GetExtra(childContext, sizeof(CERT_CONTEXT));
 200         PCERT_CONTEXT context =
 201          CRYPT_CollectionCreateContextFromChild(cs, storeEntry, childContext,
 202          sizeof(CERT_CONTEXT), TRUE);
 203
 204         if (context)
 205             context->hCertStore = store;
 206         *ppStoreContext = context;
 207     }
 208     CertFreeCertificateContext(childContext);
 209     return ret;
 210 }
 211
 212 static void *CRYPT_CollectionEnumCert(PWINECRYPT_CERTSTORE store, void *pPrev)
 213 {
 214     PWINE_COLLECTIONSTORE cs = (PWINE_COLLECTIONSTORE)store;
 215     void *ret;
 216
 217     TRACE("(%p, %p)\n", store, pPrev);
 218
 219     EnterCriticalSection(&cs->cs);
 220     if (pPrev)
 221     {
 222         PWINE_STORE_LIST_ENTRY storeEntry =
 223          *(PWINE_STORE_LIST_ENTRY *)Context_GetExtra(pPrev,
 224          sizeof(CERT_CONTEXT));
 225
 226         ret = CRYPT_CollectionAdvanceEnum(cs, storeEntry,
 227          &storeEntry->store->certs, pCertInterface, pPrev,
 228          sizeof(CERT_CONTEXT));
 229     }
 230     else
 231     {
 232         if (!list_empty(&cs->stores))
 233         {
 234             PWINE_STORE_LIST_ENTRY storeEntry = LIST_ENTRY(cs->stores.next,
 235              WINE_STORE_LIST_ENTRY, entry);
 236
 237             ret = CRYPT_CollectionAdvanceEnum(cs, storeEntry,
 238              &storeEntry->store->certs, pCertInterface, NULL,
 239              sizeof(CERT_CONTEXT));
 240         }
 241         else
 242         {
 243             SetLastError(CRYPT_E_NOT_FOUND);
 244             ret = NULL;
 245         }
 246     }
 247     LeaveCriticalSection(&cs->cs);
 248     if (ret)
 249         ((PCERT_CONTEXT)ret)->hCertStore = store;
 250     TRACE("returning %p\n", ret);
 251     return ret;
 252 }
 253
 254 static BOOL CRYPT_CollectionDeleteCert(PWINECRYPT_CERTSTORE store,
 255  void *pCertContext)
 256 {
 257     BOOL ret;
 258     PCCERT_CONTEXT linked;
 259
 260     TRACE("(%p, %p)\n", store, pCertContext);
 261
 262     /* Deleting the linked context results in its ref count getting
 263      * decreased, but the caller of this (CertDeleteCertificateFromStore) also
 264      * decreases pCertContext's ref count, by calling
 265      * CertFreeCertificateContext.  Increase ref count of linked context to
 266      * compensate.
 267      */
 268     linked = Context_GetLinkedContext(pCertContext, sizeof(CERT_CONTEXT));
 269     CertDuplicateCertificateContext(linked);
 270     ret = CertDeleteCertificateFromStore(linked);
 271     return ret;
 272 }
 273
 274 static BOOL CRYPT_CollectionAddCRL(PWINECRYPT_CERTSTORE store, void *crl,
 275  void *toReplace, const void **ppStoreContext)
 276 {
 277     BOOL ret;
 278     void *childContext = NULL;
 279     PWINE_COLLECTIONSTORE cs = (PWINE_COLLECTIONSTORE)store;
 280
 281     ret = CRYPT_CollectionAddContext(cs, offsetof(WINECRYPT_CERTSTORE, crls),
 282      crl, toReplace, sizeof(CRL_CONTEXT), &childContext);
 283     if (ppStoreContext && childContext)
 284     {
 285         PWINE_STORE_LIST_ENTRY storeEntry = *(PWINE_STORE_LIST_ENTRY *)
 286          Context_GetExtra(childContext, sizeof(CRL_CONTEXT));
 287         PCRL_CONTEXT context =
 288          CRYPT_CollectionCreateContextFromChild(cs, storeEntry, childContext,
 289          sizeof(CRL_CONTEXT), TRUE);
 290
 291         if (context)
 292             context->hCertStore = store;
 293         *ppStoreContext = context;
 294     }
 295     CertFreeCRLContext(childContext);
 296     return ret;
 297 }
 298
 299 static void *CRYPT_CollectionEnumCRL(PWINECRYPT_CERTSTORE store, void *pPrev)
 300 {
 301     PWINE_COLLECTIONSTORE cs = (PWINE_COLLECTIONSTORE)store;
 302     void *ret;
 303
 304     TRACE("(%p, %p)\n", store, pPrev);
 305
 306     EnterCriticalSection(&cs->cs);
 307     if (pPrev)
 308     {
 309         PWINE_STORE_LIST_ENTRY storeEntry =
 310          *(PWINE_STORE_LIST_ENTRY *)Context_GetExtra(pPrev,
 311          sizeof(CRL_CONTEXT));
 312
 313         ret = CRYPT_CollectionAdvanceEnum(cs, storeEntry,
 314          &storeEntry->store->crls, pCRLInterface, pPrev, sizeof(CRL_CONTEXT));
 315     }
 316     else
 317     {
 318         if (!list_empty(&cs->stores))
 319         {
 320             PWINE_STORE_LIST_ENTRY storeEntry = LIST_ENTRY(cs->stores.next,
 321              WINE_STORE_LIST_ENTRY, entry);
 322
 323             ret = CRYPT_CollectionAdvanceEnum(cs, storeEntry,
 324              &storeEntry->store->crls, pCRLInterface, NULL,
 325              sizeof(CRL_CONTEXT));
 326         }
 327         else
 328         {
 329             SetLastError(CRYPT_E_NOT_FOUND);
 330             ret = NULL;
 331         }
 332     }
 333     LeaveCriticalSection(&cs->cs);
 334     if (ret)
 335         ((PCRL_CONTEXT)ret)->hCertStore = store;
 336     TRACE("returning %p\n", ret);
 337     return ret;
 338 }
 339
 340 static BOOL CRYPT_CollectionDeleteCRL(PWINECRYPT_CERTSTORE store,
 341  void *pCrlContext)
 342 {
 343     BOOL ret;
 344     PCCRL_CONTEXT linked;
 345
 346     TRACE("(%p, %p)\n", store, pCrlContext);
 347
 348     /* Deleting the linked context results in its ref count getting
 349      * decreased, but the caller of this (CertDeleteCRLFromStore) also
 350      * decreases pCrlContext's ref count, by calling CertFreeCRLContext.
 351      * Increase ref count of linked context to compensate.
 352      */
 353     linked = Context_GetLinkedContext(pCrlContext, sizeof(CRL_CONTEXT));
 354     CertDuplicateCRLContext(linked);
 355     ret = CertDeleteCRLFromStore(linked);
 356     return ret;
 357 }
 358
 359 static BOOL CRYPT_CollectionAddCTL(PWINECRYPT_CERTSTORE store, void *ctl,
 360  void *toReplace, const void **ppStoreContext)
 361 {
 362     BOOL ret;
 363     void *childContext = NULL;
 364     PWINE_COLLECTIONSTORE cs = (PWINE_COLLECTIONSTORE)store;
 365
 366     ret = CRYPT_CollectionAddContext(cs, offsetof(WINECRYPT_CERTSTORE, ctls),
 367      ctl, toReplace, sizeof(CTL_CONTEXT), &childContext);
 368     if (ppStoreContext && childContext)
 369     {
 370         PWINE_STORE_LIST_ENTRY storeEntry = *(PWINE_STORE_LIST_ENTRY *)
 371          Context_GetExtra(childContext, sizeof(CTL_CONTEXT));
 372         PCTL_CONTEXT context =
 373          CRYPT_CollectionCreateContextFromChild(cs, storeEntry, childContext,
 374          sizeof(CTL_CONTEXT), TRUE);
 375
 376         if (context)
 377             context->hCertStore = store;
 378         *ppStoreContext = context;
 379     }
 380     CertFreeCTLContext(childContext);
 381     return ret;
 382 }
 383
 384 static void *CRYPT_CollectionEnumCTL(PWINECRYPT_CERTSTORE store, void *pPrev)
 385 {
 386     PWINE_COLLECTIONSTORE cs = (PWINE_COLLECTIONSTORE)store;
 387     void *ret;
 388
 389     TRACE("(%p, %p)\n", store, pPrev);
 390
 391     EnterCriticalSection(&cs->cs);
 392     if (pPrev)
 393     {
 394         PWINE_STORE_LIST_ENTRY storeEntry =
 395          *(PWINE_STORE_LIST_ENTRY *)Context_GetExtra(pPrev,
 396          sizeof(CTL_CONTEXT));
 397
 398         ret = CRYPT_CollectionAdvanceEnum(cs, storeEntry,
 399          &storeEntry->store->ctls, pCTLInterface, pPrev, sizeof(CTL_CONTEXT));
 400     }
 401     else
 402     {
 403         if (!list_empty(&cs->stores))
 404         {
 405             PWINE_STORE_LIST_ENTRY storeEntry = LIST_ENTRY(cs->stores.next,
 406              WINE_STORE_LIST_ENTRY, entry);
 407
 408             ret = CRYPT_CollectionAdvanceEnum(cs, storeEntry,
 409              &storeEntry->store->ctls, pCTLInterface, NULL,
 410              sizeof(CTL_CONTEXT));
 411         }
 412         else
 413         {
 414             SetLastError(CRYPT_E_NOT_FOUND);
 415             ret = NULL;
 416         }
 417     }
 418     LeaveCriticalSection(&cs->cs);
 419     if (ret)
 420         ((PCTL_CONTEXT)ret)->hCertStore = store;
 421     TRACE("returning %p\n", ret);
 422     return ret;
 423 }
 424
 425 static BOOL CRYPT_CollectionDeleteCTL(PWINECRYPT_CERTSTORE store,
 426  void *pCtlContext)
 427 {
 428     BOOL ret;
 429     PCCTL_CONTEXT linked;
 430
 431     TRACE("(%p, %p)\n", store, pCtlContext);
 432
 433     /* Deleting the linked context results in its ref count getting
 434      * decreased, but the caller of this (CertDeleteCTLFromStore) also
 435      * decreases pCtlContext's ref count, by calling CertFreeCTLContext.
 436      * Increase ref count of linked context to compensate.
 437      */
 438     linked = Context_GetLinkedContext(pCtlContext, sizeof(CTL_CONTEXT));
 439     CertDuplicateCTLContext(linked);
 440     ret = CertDeleteCTLFromStore(linked);
 441     return ret;
 442 }
 443
 444 static BOOL WINAPI CRYPT_CollectionControl(HCERTSTORE hCertStore, DWORD dwFlags,
 445  DWORD dwCtrlType, void const *pvCtrlPara)
 446 {
 447     BOOL ret;
 448     PWINE_COLLECTIONSTORE store = hCertStore;
 449     PWINE_STORE_LIST_ENTRY entry;
 450
 451     TRACE("(%p, %08x, %d, %p)\n", hCertStore, dwFlags, dwCtrlType,
 452      pvCtrlPara);
 453
 454     if (!store)
 455         return TRUE;
 456     if (store->hdr.dwMagic != WINE_CRYPTCERTSTORE_MAGIC)
 457     {
 458         SetLastError(E_INVALIDARG);
 459         return FALSE;
 460     }
 461     if (store->hdr.type != StoreTypeCollection)
 462     {
 463         SetLastError(E_INVALIDARG);
 464         return FALSE;
 465     }
 466
 467     ret = TRUE;
 468     EnterCriticalSection(&store->cs);
 469     LIST_FOR_EACH_ENTRY(entry, &store->stores, WINE_STORE_LIST_ENTRY, entry)
 470     {
 471         if (entry->store->control)
 472         {
 473             ret = entry->store->control(entry->store, dwFlags, dwCtrlType,
 474              pvCtrlPara);
 475             if (!ret)
 476                 break;
 477         }
 478     }
 479     LeaveCriticalSection(&store->cs);
 480     return ret;
 481 }
 482
 483 PWINECRYPT_CERTSTORE CRYPT_CollectionOpenStore(HCRYPTPROV hCryptProv,
 484  DWORD dwFlags, const void *pvPara)
 485 {
 486     PWINE_COLLECTIONSTORE store;
 487
 488     if (dwFlags & CERT_STORE_DELETE_FLAG)
 489     {
 490         SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 491         store = NULL;
 492     }
 493     else
 494     {
 495         store = CryptMemAlloc(sizeof(WINE_COLLECTIONSTORE));
 496         if (store)
 497         {
 498             memset(store, 0, sizeof(WINE_COLLECTIONSTORE));
 499             CRYPT_InitStore(&store->hdr, dwFlags, StoreTypeCollection);
 500             store->hdr.closeStore          = CRYPT_CollectionCloseStore;
 501             store->hdr.certs.addContext    = CRYPT_CollectionAddCert;
 502             store->hdr.certs.enumContext   = CRYPT_CollectionEnumCert;
 503             store->hdr.certs.deleteContext = CRYPT_CollectionDeleteCert;
 504             store->hdr.crls.addContext     = CRYPT_CollectionAddCRL;
 505             store->hdr.crls.enumContext    = CRYPT_CollectionEnumCRL;
 506             store->hdr.crls.deleteContext  = CRYPT_CollectionDeleteCRL;
 507             store->hdr.ctls.addContext     = CRYPT_CollectionAddCTL;
 508             store->hdr.ctls.enumContext    = CRYPT_CollectionEnumCTL;
 509             store->hdr.ctls.deleteContext  = CRYPT_CollectionDeleteCTL;
 510             store->hdr.control             = CRYPT_CollectionControl;
 511             InitializeCriticalSection(&store->cs);
 512             store->cs.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": PWINE_COLLECTIONSTORE->cs");
 513             list_init(&store->stores);
 514         }
 515     }
 516     return (PWINECRYPT_CERTSTORE)store;
 517 }
 518
 519 BOOL WINAPI CertAddStoreToCollection(HCERTSTORE hCollectionStore,
 520  HCERTSTORE hSiblingStore, DWORD dwUpdateFlags, DWORD dwPriority)
 521 {
 522     PWINE_COLLECTIONSTORE collection = hCollectionStore;
 523     WINECRYPT_CERTSTORE *sibling = hSiblingStore;
 524     PWINE_STORE_LIST_ENTRY entry;
 525     BOOL ret;
 526
 527     TRACE("(%p, %p, %08x, %d)\n", hCollectionStore, hSiblingStore,
 528      dwUpdateFlags, dwPriority);
 529
 530     if (!collection || !sibling)
 531         return TRUE;
 532     if (collection->hdr.dwMagic != WINE_CRYPTCERTSTORE_MAGIC)
 533     {
 534         SetLastError(E_INVALIDARG);
 535         return FALSE;
 536     }
 537     if (collection->hdr.type != StoreTypeCollection)
 538     {
 539         SetLastError(E_INVALIDARG);
 540         return FALSE;
 541     }
 542     if (sibling->dwMagic != WINE_CRYPTCERTSTORE_MAGIC)
 543     {
 544         SetLastError(E_INVALIDARG);
 545         return FALSE;
 546     }
 547
 548     entry = CryptMemAlloc(sizeof(WINE_STORE_LIST_ENTRY));
 549     if (entry)
 550     {
 551         InterlockedIncrement(&sibling->ref);
 552         TRACE("sibling %p's ref count is %d\n", sibling, sibling->ref);
 553         entry->store = sibling;
 554         entry->dwUpdateFlags = dwUpdateFlags;
 555         entry->dwPriority = dwPriority;
 556         list_init(&entry->entry);
 557         TRACE("%p: adding %p, priority %d\n", collection, entry, dwPriority);
 558         EnterCriticalSection(&collection->cs);
 559         if (dwPriority)
 560         {
 561             PWINE_STORE_LIST_ENTRY cursor;
 562             BOOL added = FALSE;
 563
 564             LIST_FOR_EACH_ENTRY(cursor, &collection->stores,
 565              WINE_STORE_LIST_ENTRY, entry)
 566             {
 567                 if (cursor->dwPriority < dwPriority)
 568                 {
 569                     list_add_before(&cursor->entry, &entry->entry);
 570                     added = TRUE;
 571                     break;
 572                 }
 573             }
 574             if (!added)
 575                 list_add_tail(&collection->stores, &entry->entry);
 576         }
 577         else
 578             list_add_tail(&collection->stores, &entry->entry);
 579         LeaveCriticalSection(&collection->cs);
 580         ret = TRUE;
 581     }
 582     else
 583         ret = FALSE;
 584     return ret;
 585 }
 586
 587 void WINAPI CertRemoveStoreFromCollection(HCERTSTORE hCollectionStore,
 588  HCERTSTORE hSiblingStore)
 589 {
 590     PWINE_COLLECTIONSTORE collection = hCollectionStore;
 591     WINECRYPT_CERTSTORE *sibling = hSiblingStore;
 592     PWINE_STORE_LIST_ENTRY store, next;
 593
 594     TRACE("(%p, %p)\n", hCollectionStore, hSiblingStore);
 595
 596     if (!collection || !sibling)
 597         return;
 598     if (collection->hdr.dwMagic != WINE_CRYPTCERTSTORE_MAGIC)
 599     {
 600         SetLastError(E_INVALIDARG);
 601         return;
 602     }
 603     if (collection->hdr.type != StoreTypeCollection)
 604         return;
 605     if (sibling->dwMagic != WINE_CRYPTCERTSTORE_MAGIC)
 606     {
 607         SetLastError(E_INVALIDARG);
 608         return;
 609     }
 610     EnterCriticalSection(&collection->cs);
 611     LIST_FOR_EACH_ENTRY_SAFE(store, next, &collection->stores,
 612      WINE_STORE_LIST_ENTRY, entry)
 613     {
 614         if (store->store == sibling)
 615         {
 616             list_remove(&store->entry);
 617             CertCloseStore(store->store, 0);
 618             CryptMemFree(store);
 619             break;
 620         }
 621     }
 622     LeaveCriticalSection(&collection->cs);
 623 }