collectionstore.c 17.3 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44
/*
 * Copyright 2004-2007 Juan Lang
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "wincrypt.h"
#include "wine/debug.h"
#include "wine/list.h"
#include "crypt32_private.h"

WINE_DEFAULT_DEBUG_CHANNEL(crypt);

typedef struct _WINE_STORE_LIST_ENTRY
{
    PWINECRYPT_CERTSTORE store;
    DWORD                dwUpdateFlags;
    DWORD                dwPriority;
    struct list          entry;
} WINE_STORE_LIST_ENTRY, *PWINE_STORE_LIST_ENTRY;

typedef struct _WINE_COLLECTIONSTORE
{
    WINECRYPT_CERTSTORE hdr;
    CRITICAL_SECTION    cs;
    struct list         stores;
} WINE_COLLECTIONSTORE, *PWINE_COLLECTIONSTORE;

static void WINAPI CRYPT_CollectionCloseStore(HCERTSTORE store, DWORD dwFlags)
{
45
    PWINE_COLLECTIONSTORE cs = store;
46 47 48 49 50 51 52 53
    PWINE_STORE_LIST_ENTRY entry, next;

    TRACE("(%p, %08x)\n", store, dwFlags);

    LIST_FOR_EACH_ENTRY_SAFE(entry, next, &cs->stores, WINE_STORE_LIST_ENTRY,
     entry)
    {
        TRACE("closing %p\n", entry);
54
        CertCloseStore(entry->store, dwFlags);
55 56 57 58
        CryptMemFree(entry);
    }
    cs->cs.DebugInfo->Spare[0] = 0;
    DeleteCriticalSection(&cs->cs);
59
    CRYPT_FreeStore(store);
60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97
}

static void *CRYPT_CollectionCreateContextFromChild(PWINE_COLLECTIONSTORE store,
 PWINE_STORE_LIST_ENTRY storeEntry, void *child, size_t contextSize,
 BOOL addRef)
{
    void *ret = Context_CreateLinkContext(contextSize, child,
     sizeof(PWINE_STORE_LIST_ENTRY), addRef);

    if (ret)
        *(PWINE_STORE_LIST_ENTRY *)Context_GetExtra(ret, contextSize)
         = storeEntry;

    return ret;
}

static BOOL CRYPT_CollectionAddContext(PWINE_COLLECTIONSTORE store,
 unsigned int contextFuncsOffset, void *context, void *toReplace, unsigned int contextSize,
 void **pChildContext)
{
    BOOL ret;
    void *childContext = NULL;
    PWINE_STORE_LIST_ENTRY storeEntry = NULL;

    TRACE("(%p, %d, %p, %p, %d)\n", store, contextFuncsOffset, context,
     toReplace, contextSize);

    ret = FALSE;
    if (toReplace)
    {
        void *existingLinked = Context_GetLinkedContext(toReplace, contextSize);
        PCONTEXT_FUNCS contextFuncs;

        storeEntry = *(PWINE_STORE_LIST_ENTRY *)Context_GetExtra(toReplace,
         contextSize);
        contextFuncs = (PCONTEXT_FUNCS)((LPBYTE)storeEntry->store +
         contextFuncsOffset);
        ret = contextFuncs->addContext(storeEntry->store, context,
Juan Lang's avatar
Juan Lang committed
98
         existingLinked, (const void **)&childContext);
99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207
    }
    else
    {
        PWINE_STORE_LIST_ENTRY entry, next;

        EnterCriticalSection(&store->cs);
        LIST_FOR_EACH_ENTRY_SAFE(entry, next, &store->stores,
         WINE_STORE_LIST_ENTRY, entry)
        {
            if (entry->dwUpdateFlags & CERT_PHYSICAL_STORE_ADD_ENABLE_FLAG)
            {
                PCONTEXT_FUNCS contextFuncs = (PCONTEXT_FUNCS)(
                 (LPBYTE)entry->store + contextFuncsOffset);

                storeEntry = entry;
                ret = contextFuncs->addContext(entry->store, context, NULL,
                 (const void **)&childContext);
                break;
            }
        }
        LeaveCriticalSection(&store->cs);
        if (!storeEntry)
            SetLastError(E_ACCESSDENIED);
    }
    *pChildContext = childContext;
    return ret;
}

/* Advances a collection enumeration by one context, if possible, where
 * advancing means:
 * - calling the current store's enumeration function once, and returning
 *   the enumerated context if one is returned
 * - moving to the next store if the current store has no more items, and
 *   recursively calling itself to get the next item.
 * Returns NULL if the collection contains no more items or on error.
 * Assumes the collection store's lock is held.
 */
static void *CRYPT_CollectionAdvanceEnum(PWINE_COLLECTIONSTORE store,
 PWINE_STORE_LIST_ENTRY storeEntry, PCONTEXT_FUNCS contextFuncs,
 PCWINE_CONTEXT_INTERFACE contextInterface, void *pPrev, size_t contextSize)
{
    void *ret, *child;
    struct list *storeNext = list_next(&store->stores, &storeEntry->entry);

    TRACE("(%p, %p, %p)\n", store, storeEntry, pPrev);

    if (pPrev)
    {
        /* Ref-counting funny business: "duplicate" (addref) the child, because
         * the free(pPrev) below can cause the ref count to become negative.
         */
        child = Context_GetLinkedContext(pPrev, contextSize);
        contextInterface->duplicate(child);
        child = contextFuncs->enumContext(storeEntry->store, child);
        contextInterface->free(pPrev);
        pPrev = NULL;
    }
    else
        child = contextFuncs->enumContext(storeEntry->store, NULL);
    if (child)
        ret = CRYPT_CollectionCreateContextFromChild(store, storeEntry, child,
         contextSize, FALSE);
    else
    {
        if (storeNext)
        {
            /* We always want the same function pointers (from certs, crls)
             * in the next store, so use the same offset into the next store.
             */
            size_t offset = (LPBYTE)contextFuncs - (LPBYTE)storeEntry->store;
            PWINE_STORE_LIST_ENTRY storeNextEntry =
             LIST_ENTRY(storeNext, WINE_STORE_LIST_ENTRY, entry);
            PCONTEXT_FUNCS storeNextContexts =
             (PCONTEXT_FUNCS)((LPBYTE)storeNextEntry->store + offset);

            ret = CRYPT_CollectionAdvanceEnum(store, storeNextEntry,
             storeNextContexts, contextInterface, NULL, contextSize);
        }
        else
        {
            SetLastError(CRYPT_E_NOT_FOUND);
            ret = NULL;
        }
    }
    TRACE("returning %p\n", ret);
    return ret;
}

static BOOL CRYPT_CollectionAddCert(PWINECRYPT_CERTSTORE store, void *cert,
 void *toReplace, const void **ppStoreContext)
{
    BOOL ret;
    void *childContext = NULL;
    PWINE_COLLECTIONSTORE cs = (PWINE_COLLECTIONSTORE)store;

    ret = CRYPT_CollectionAddContext(cs, offsetof(WINECRYPT_CERTSTORE, certs),
     cert, toReplace, sizeof(CERT_CONTEXT), &childContext);
    if (ppStoreContext && childContext)
    {
        PWINE_STORE_LIST_ENTRY storeEntry = *(PWINE_STORE_LIST_ENTRY *)
         Context_GetExtra(childContext, sizeof(CERT_CONTEXT));
        PCERT_CONTEXT context =
         CRYPT_CollectionCreateContextFromChild(cs, storeEntry, childContext,
         sizeof(CERT_CONTEXT), TRUE);

        if (context)
            context->hCertStore = store;
        *ppStoreContext = context;
    }
208
    CertFreeCertificateContext(childContext);
209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260
    return ret;
}

static void *CRYPT_CollectionEnumCert(PWINECRYPT_CERTSTORE store, void *pPrev)
{
    PWINE_COLLECTIONSTORE cs = (PWINE_COLLECTIONSTORE)store;
    void *ret;

    TRACE("(%p, %p)\n", store, pPrev);

    EnterCriticalSection(&cs->cs);
    if (pPrev)
    {
        PWINE_STORE_LIST_ENTRY storeEntry =
         *(PWINE_STORE_LIST_ENTRY *)Context_GetExtra(pPrev,
         sizeof(CERT_CONTEXT));

        ret = CRYPT_CollectionAdvanceEnum(cs, storeEntry,
         &storeEntry->store->certs, pCertInterface, pPrev,
         sizeof(CERT_CONTEXT));
    }
    else
    {
        if (!list_empty(&cs->stores))
        {
            PWINE_STORE_LIST_ENTRY storeEntry = LIST_ENTRY(cs->stores.next,
             WINE_STORE_LIST_ENTRY, entry);

            ret = CRYPT_CollectionAdvanceEnum(cs, storeEntry,
             &storeEntry->store->certs, pCertInterface, NULL,
             sizeof(CERT_CONTEXT));
        }
        else
        {
            SetLastError(CRYPT_E_NOT_FOUND);
            ret = NULL;
        }
    }
    LeaveCriticalSection(&cs->cs);
    if (ret)
        ((PCERT_CONTEXT)ret)->hCertStore = store;
    TRACE("returning %p\n", ret);
    return ret;
}

static BOOL CRYPT_CollectionDeleteCert(PWINECRYPT_CERTSTORE store,
 void *pCertContext)
{
    BOOL ret;

    TRACE("(%p, %p)\n", store, pCertContext);

261
    ret = CertDeleteCertificateFromStore(
262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286
     Context_GetLinkedContext(pCertContext, sizeof(CERT_CONTEXT)));
    return ret;
}

static BOOL CRYPT_CollectionAddCRL(PWINECRYPT_CERTSTORE store, void *crl,
 void *toReplace, const void **ppStoreContext)
{
    BOOL ret;
    void *childContext = NULL;
    PWINE_COLLECTIONSTORE cs = (PWINE_COLLECTIONSTORE)store;

    ret = CRYPT_CollectionAddContext(cs, offsetof(WINECRYPT_CERTSTORE, crls),
     crl, toReplace, sizeof(CRL_CONTEXT), &childContext);
    if (ppStoreContext && childContext)
    {
        PWINE_STORE_LIST_ENTRY storeEntry = *(PWINE_STORE_LIST_ENTRY *)
         Context_GetExtra(childContext, sizeof(CRL_CONTEXT));
        PCRL_CONTEXT context =
         CRYPT_CollectionCreateContextFromChild(cs, storeEntry, childContext,
         sizeof(CRL_CONTEXT), TRUE);

        if (context)
            context->hCertStore = store;
        *ppStoreContext = context;
    }
287
    CertFreeCRLContext(childContext);
288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338
    return ret;
}

static void *CRYPT_CollectionEnumCRL(PWINECRYPT_CERTSTORE store, void *pPrev)
{
    PWINE_COLLECTIONSTORE cs = (PWINE_COLLECTIONSTORE)store;
    void *ret;

    TRACE("(%p, %p)\n", store, pPrev);

    EnterCriticalSection(&cs->cs);
    if (pPrev)
    {
        PWINE_STORE_LIST_ENTRY storeEntry =
         *(PWINE_STORE_LIST_ENTRY *)Context_GetExtra(pPrev,
         sizeof(CRL_CONTEXT));

        ret = CRYPT_CollectionAdvanceEnum(cs, storeEntry,
         &storeEntry->store->crls, pCRLInterface, pPrev, sizeof(CRL_CONTEXT));
    }
    else
    {
        if (!list_empty(&cs->stores))
        {
            PWINE_STORE_LIST_ENTRY storeEntry = LIST_ENTRY(cs->stores.next,
             WINE_STORE_LIST_ENTRY, entry);

            ret = CRYPT_CollectionAdvanceEnum(cs, storeEntry,
             &storeEntry->store->crls, pCRLInterface, NULL,
             sizeof(CRL_CONTEXT));
        }
        else
        {
            SetLastError(CRYPT_E_NOT_FOUND);
            ret = NULL;
        }
    }
    LeaveCriticalSection(&cs->cs);
    if (ret)
        ((PCRL_CONTEXT)ret)->hCertStore = store;
    TRACE("returning %p\n", ret);
    return ret;
}

static BOOL CRYPT_CollectionDeleteCRL(PWINECRYPT_CERTSTORE store,
 void *pCrlContext)
{
    BOOL ret;

    TRACE("(%p, %p)\n", store, pCrlContext);

339
    ret = CertDeleteCRLFromStore(
340 341 342 343
     Context_GetLinkedContext(pCrlContext, sizeof(CRL_CONTEXT)));
    return ret;
}

344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364
static BOOL CRYPT_CollectionAddCTL(PWINECRYPT_CERTSTORE store, void *ctl,
 void *toReplace, const void **ppStoreContext)
{
    BOOL ret;
    void *childContext = NULL;
    PWINE_COLLECTIONSTORE cs = (PWINE_COLLECTIONSTORE)store;

    ret = CRYPT_CollectionAddContext(cs, offsetof(WINECRYPT_CERTSTORE, ctls),
     ctl, toReplace, sizeof(CTL_CONTEXT), &childContext);
    if (ppStoreContext && childContext)
    {
        PWINE_STORE_LIST_ENTRY storeEntry = *(PWINE_STORE_LIST_ENTRY *)
         Context_GetExtra(childContext, sizeof(CTL_CONTEXT));
        PCTL_CONTEXT context =
         CRYPT_CollectionCreateContextFromChild(cs, storeEntry, childContext,
         sizeof(CTL_CONTEXT), TRUE);

        if (context)
            context->hCertStore = store;
        *ppStoreContext = context;
    }
365
    CertFreeCTLContext(childContext);
366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416
    return ret;
}

static void *CRYPT_CollectionEnumCTL(PWINECRYPT_CERTSTORE store, void *pPrev)
{
    PWINE_COLLECTIONSTORE cs = (PWINE_COLLECTIONSTORE)store;
    void *ret;

    TRACE("(%p, %p)\n", store, pPrev);

    EnterCriticalSection(&cs->cs);
    if (pPrev)
    {
        PWINE_STORE_LIST_ENTRY storeEntry =
         *(PWINE_STORE_LIST_ENTRY *)Context_GetExtra(pPrev,
         sizeof(CTL_CONTEXT));

        ret = CRYPT_CollectionAdvanceEnum(cs, storeEntry,
         &storeEntry->store->ctls, pCTLInterface, pPrev, sizeof(CTL_CONTEXT));
    }
    else
    {
        if (!list_empty(&cs->stores))
        {
            PWINE_STORE_LIST_ENTRY storeEntry = LIST_ENTRY(cs->stores.next,
             WINE_STORE_LIST_ENTRY, entry);

            ret = CRYPT_CollectionAdvanceEnum(cs, storeEntry,
             &storeEntry->store->ctls, pCTLInterface, NULL,
             sizeof(CTL_CONTEXT));
        }
        else
        {
            SetLastError(CRYPT_E_NOT_FOUND);
            ret = NULL;
        }
    }
    LeaveCriticalSection(&cs->cs);
    if (ret)
        ((PCTL_CONTEXT)ret)->hCertStore = store;
    TRACE("returning %p\n", ret);
    return ret;
}

static BOOL CRYPT_CollectionDeleteCTL(PWINECRYPT_CERTSTORE store,
 void *pCtlContext)
{
    BOOL ret;

    TRACE("(%p, %p)\n", store, pCtlContext);

417
    ret = CertDeleteCTLFromStore(
418 419 420 421
     Context_GetLinkedContext(pCtlContext, sizeof(CTL_CONTEXT)));
    return ret;
}

422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437
PWINECRYPT_CERTSTORE CRYPT_CollectionOpenStore(HCRYPTPROV hCryptProv,
 DWORD dwFlags, const void *pvPara)
{
    PWINE_COLLECTIONSTORE store;

    if (dwFlags & CERT_STORE_DELETE_FLAG)
    {
        SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
        store = NULL;
    }
    else
    {
        store = CryptMemAlloc(sizeof(WINE_COLLECTIONSTORE));
        if (store)
        {
            memset(store, 0, sizeof(WINE_COLLECTIONSTORE));
438
            CRYPT_InitStore(&store->hdr, dwFlags, StoreTypeCollection);
439 440 441 442 443 444 445
            store->hdr.closeStore          = CRYPT_CollectionCloseStore;
            store->hdr.certs.addContext    = CRYPT_CollectionAddCert;
            store->hdr.certs.enumContext   = CRYPT_CollectionEnumCert;
            store->hdr.certs.deleteContext = CRYPT_CollectionDeleteCert;
            store->hdr.crls.addContext     = CRYPT_CollectionAddCRL;
            store->hdr.crls.enumContext    = CRYPT_CollectionEnumCRL;
            store->hdr.crls.deleteContext  = CRYPT_CollectionDeleteCRL;
446 447 448
            store->hdr.ctls.addContext     = CRYPT_CollectionAddCTL;
            store->hdr.ctls.enumContext    = CRYPT_CollectionEnumCTL;
            store->hdr.ctls.deleteContext  = CRYPT_CollectionDeleteCTL;
449 450 451 452 453 454 455 456 457 458 459
            InitializeCriticalSection(&store->cs);
            store->cs.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": PWINE_COLLECTIONSTORE->cs");
            list_init(&store->stores);
        }
    }
    return (PWINECRYPT_CERTSTORE)store;
}

BOOL WINAPI CertAddStoreToCollection(HCERTSTORE hCollectionStore,
 HCERTSTORE hSiblingStore, DWORD dwUpdateFlags, DWORD dwPriority)
{
460 461
    PWINE_COLLECTIONSTORE collection = hCollectionStore;
    WINECRYPT_CERTSTORE *sibling = hSiblingStore;
462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527
    PWINE_STORE_LIST_ENTRY entry;
    BOOL ret;

    TRACE("(%p, %p, %08x, %d)\n", hCollectionStore, hSiblingStore,
     dwUpdateFlags, dwPriority);

    if (!collection || !sibling)
        return TRUE;
    if (collection->hdr.dwMagic != WINE_CRYPTCERTSTORE_MAGIC)
    {
        SetLastError(E_INVALIDARG);
        return FALSE;
    }
    if (collection->hdr.type != StoreTypeCollection)
    {
        SetLastError(E_INVALIDARG);
        return FALSE;
    }
    if (sibling->dwMagic != WINE_CRYPTCERTSTORE_MAGIC)
    {
        SetLastError(E_INVALIDARG);
        return FALSE;
    }

    entry = CryptMemAlloc(sizeof(WINE_STORE_LIST_ENTRY));
    if (entry)
    {
        InterlockedIncrement(&sibling->ref);
        TRACE("sibling %p's ref count is %d\n", sibling, sibling->ref);
        entry->store = sibling;
        entry->dwUpdateFlags = dwUpdateFlags;
        entry->dwPriority = dwPriority;
        list_init(&entry->entry);
        TRACE("%p: adding %p, priority %d\n", collection, entry, dwPriority);
        EnterCriticalSection(&collection->cs);
        if (dwPriority)
        {
            PWINE_STORE_LIST_ENTRY cursor;
            BOOL added = FALSE;

            LIST_FOR_EACH_ENTRY(cursor, &collection->stores,
             WINE_STORE_LIST_ENTRY, entry)
            {
                if (cursor->dwPriority < dwPriority)
                {
                    list_add_before(&cursor->entry, &entry->entry);
                    added = TRUE;
                    break;
                }
            }
            if (!added)
                list_add_tail(&collection->stores, &entry->entry);
        }
        else
            list_add_tail(&collection->stores, &entry->entry);
        LeaveCriticalSection(&collection->cs);
        ret = TRUE;
    }
    else
        ret = FALSE;
    return ret;
}

void WINAPI CertRemoveStoreFromCollection(HCERTSTORE hCollectionStore,
 HCERTSTORE hSiblingStore)
{
528 529
    PWINE_COLLECTIONSTORE collection = hCollectionStore;
    WINECRYPT_CERTSTORE *sibling = hSiblingStore;
530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561
    PWINE_STORE_LIST_ENTRY store, next;

    TRACE("(%p, %p)\n", hCollectionStore, hSiblingStore);

    if (!collection || !sibling)
        return;
    if (collection->hdr.dwMagic != WINE_CRYPTCERTSTORE_MAGIC)
    {
        SetLastError(E_INVALIDARG);
        return;
    }
    if (collection->hdr.type != StoreTypeCollection)
        return;
    if (sibling->dwMagic != WINE_CRYPTCERTSTORE_MAGIC)
    {
        SetLastError(E_INVALIDARG);
        return;
    }
    EnterCriticalSection(&collection->cs);
    LIST_FOR_EACH_ENTRY_SAFE(store, next, &collection->stores,
     WINE_STORE_LIST_ENTRY, entry)
    {
        if (store->store == sibling)
        {
            list_remove(&store->entry);
            CertCloseStore(store->store, 0);
            CryptMemFree(store);
            break;
        }
    }
    LeaveCriticalSection(&collection->cs);
}