dlls/secur32/secur32.c

   1 /* Copyright (C) 2004 Juan Lang
   2  *
   3  * This file implements loading of SSP DLLs.
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18  */
  19 #include <assert.h>
  20 #include <stdarg.h>
  21
  22 #include "ntstatus.h"
  23 #define WIN32_NO_STATUS
  24 #include "windef.h"
  25 #include "winbase.h"
  26 #include "winnls.h"
  27 #include "winreg.h"
  28 #include "winternl.h"
  29 #include "shlwapi.h"
  30 #include "sspi.h"
  31 #include "secur32_priv.h"
  32 #include "secext.h"
  33 #include "ntsecapi.h"
  34 #include "thunks.h"
  35
  36 #include "wine/list.h"
  37 #include "wine/debug.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(secur32);
  40
  41 /**
  42  *  Type definitions
  43  */
  44
  45 typedef struct _SecurePackageTable
  46 {
  47     DWORD numPackages;
  48     DWORD numAllocated;
  49     struct list table;
  50 } SecurePackageTable;
  51
  52 typedef struct _SecureProviderTable
  53 {
  54     DWORD numProviders;
  55     DWORD numAllocated;
  56     struct list table;
  57 } SecureProviderTable;
  58
  59 /**
  60  *  Prototypes
  61  */
  62
  63 /* Tries to load moduleName as a provider.  If successful, enumerates what
  64  * packages it can and adds them to the package and provider tables.  Resizes
  65  * tables as necessary.
  66  */
  67 static void _tryLoadProvider(PWSTR moduleName);
  68
  69 /* Initialization: read securityproviders value and attempt to open each dll
  70  * there.  For each DLL, call _tryLoadProvider to see if it's really an SSP.
  71  * Two undocumented functions, AddSecurityPackage(A/W) and
  72  * DeleteSecurityPackage(A/W), seem suspiciously like they'd register or
  73  * unregister a dll, but I'm not sure.
  74  */
  75 static void SECUR32_initializeProviders(void);
  76
  77 /* Frees all loaded packages and providers */
  78 static void SECUR32_freeProviders(void);
  79
  80 /**
  81  *  Globals
  82  */
  83
  84 static CRITICAL_SECTION cs;
  85 static SecurePackageTable *packageTable = NULL;
  86 static SecureProviderTable *providerTable = NULL;
  87
  88 static SecurityFunctionTableA securityFunctionTableA = {
  89     SECURITY_SUPPORT_PROVIDER_INTERFACE_VERSION,
  90     EnumerateSecurityPackagesA,
  91     QueryCredentialsAttributesA,
  92     AcquireCredentialsHandleA,
  93     FreeCredentialsHandle,
  94     NULL, /* Reserved2 */
  95     InitializeSecurityContextA,
  96     AcceptSecurityContext,
  97     CompleteAuthToken,
  98     DeleteSecurityContext,
  99     ApplyControlToken,
 100     QueryContextAttributesA,
 101     ImpersonateSecurityContext,
 102     RevertSecurityContext,
 103     MakeSignature,
 104     VerifySignature,
 105     FreeContextBuffer,
 106     QuerySecurityPackageInfoA,
 107     EncryptMessage, /* Reserved3 */
 108     DecryptMessage, /* Reserved4 */
 109     ExportSecurityContext,
 110     ImportSecurityContextA,
 111     AddCredentialsA,
 112     NULL, /* Reserved8 */
 113     QuerySecurityContextToken,
 114     EncryptMessage,
 115     DecryptMessage,
 116     SetContextAttributesA
 117 };
 118
 119 static SecurityFunctionTableW securityFunctionTableW = {
 120     SECURITY_SUPPORT_PROVIDER_INTERFACE_VERSION,
 121     EnumerateSecurityPackagesW,
 122     QueryCredentialsAttributesW,
 123     AcquireCredentialsHandleW,
 124     FreeCredentialsHandle,
 125     NULL, /* Reserved2 */
 126     InitializeSecurityContextW,
 127     AcceptSecurityContext,
 128     CompleteAuthToken,
 129     DeleteSecurityContext,
 130     ApplyControlToken,
 131     QueryContextAttributesW,
 132     ImpersonateSecurityContext,
 133     RevertSecurityContext,
 134     MakeSignature,
 135     VerifySignature,
 136     FreeContextBuffer,
 137     QuerySecurityPackageInfoW,
 138     EncryptMessage, /* Reserved3 */
 139     DecryptMessage, /* Reserved4 */
 140     ExportSecurityContext,
 141     ImportSecurityContextW,
 142     AddCredentialsW,
 143     NULL, /* Reserved8 */
 144     QuerySecurityContextToken,
 145     EncryptMessage,
 146     DecryptMessage,
 147     SetContextAttributesW
 148 };
 149
 150 /***********************************************************************
 151  *              InitSecurityInterfaceA (SECUR32.@)
 152  */
 153 PSecurityFunctionTableA WINAPI InitSecurityInterfaceA(void)
 154 {
 155     return &securityFunctionTableA;
 156 }
 157
 158 /***********************************************************************
 159  *              InitSecurityInterfaceW (SECUR32.@)
 160  */
 161 PSecurityFunctionTableW WINAPI InitSecurityInterfaceW(void)
 162 {
 163     return &securityFunctionTableW;
 164 }
 165
 166 PWSTR SECUR32_strdupW(PCWSTR str)
 167 {
 168     PWSTR ret;
 169
 170     if (str)
 171     {
 172         ret = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(str) + 1) * sizeof(WCHAR));
 173         if (ret)
 174             lstrcpyW(ret, str);
 175     }
 176     else
 177         ret = NULL;
 178     return ret;
 179 }
 180
 181 PWSTR SECUR32_AllocWideFromMultiByte(PCSTR str)
 182 {
 183     PWSTR ret;
 184
 185     if (str)
 186     {
 187         int charsNeeded = MultiByteToWideChar(CP_ACP, 0, str, -1, NULL, 0);
 188
 189         if (charsNeeded)
 190         {
 191             ret = HeapAlloc(GetProcessHeap(), 0, charsNeeded * sizeof(WCHAR));
 192             if (ret)
 193                 MultiByteToWideChar(CP_ACP, 0, str, -1, ret, charsNeeded);
 194         }
 195         else
 196             ret = NULL;
 197     }
 198     else
 199         ret = NULL;
 200     return ret;
 201 }
 202
 203 PSTR SECUR32_AllocMultiByteFromWide(PCWSTR str)
 204 {
 205     PSTR ret;
 206
 207     if (str)
 208     {
 209         int charsNeeded = WideCharToMultiByte(CP_ACP, 0, str, -1, NULL, 0,
 210          NULL, NULL);
 211
 212         if (charsNeeded)
 213         {
 214             ret = HeapAlloc(GetProcessHeap(), 0, charsNeeded);
 215             if (ret)
 216                 WideCharToMultiByte(CP_ACP, 0, str, -1, ret, charsNeeded,
 217                  NULL, NULL);
 218         }
 219         else
 220             ret = NULL;
 221     }
 222     else
 223         ret = NULL;
 224     return ret;
 225 }
 226
 227 static void _makeFnTableA(PSecurityFunctionTableA fnTableA,
 228  const SecurityFunctionTableA *inFnTableA,
 229  const SecurityFunctionTableW *inFnTableW)
 230 {
 231     if (fnTableA)
 232     {
 233         if (inFnTableA)
 234         {
 235             /* The size of the version 1 table is based on platform sdk's
 236              * sspi.h, though the sample ssp also provided with platform sdk
 237              * implies only functions through QuerySecurityPackageInfoA are
 238              * implemented (yikes)
 239              */
 240             size_t tableSize = inFnTableA->dwVersion == 1 ?
 241              (const BYTE *)&inFnTableA->SetContextAttributesA -
 242              (const BYTE *)inFnTableA : sizeof(SecurityFunctionTableA);
 243
 244             memcpy(fnTableA, inFnTableA, tableSize);
 245             /* override this, since we can do it internally anyway */
 246             fnTableA->QuerySecurityPackageInfoA =
 247              QuerySecurityPackageInfoA;
 248         }
 249         else if (inFnTableW)
 250         {
 251             /* functions with thunks */
 252             if (inFnTableW->AcquireCredentialsHandleW)
 253                 fnTableA->AcquireCredentialsHandleA =
 254                  thunk_AcquireCredentialsHandleA;
 255             if (inFnTableW->InitializeSecurityContextW)
 256                 fnTableA->InitializeSecurityContextA =
 257                  thunk_InitializeSecurityContextA;
 258             if (inFnTableW->ImportSecurityContextW)
 259                 fnTableA->ImportSecurityContextA =
 260                  thunk_ImportSecurityContextA;
 261             if (inFnTableW->AddCredentialsW)
 262                 fnTableA->AddCredentialsA =
 263                  thunk_AddCredentialsA;
 264             if (inFnTableW->QueryCredentialsAttributesW)
 265                 fnTableA->QueryCredentialsAttributesA =
 266                  thunk_QueryCredentialsAttributesA;
 267             if (inFnTableW->QueryContextAttributesW)
 268                 fnTableA->QueryContextAttributesA =
 269                  thunk_QueryContextAttributesA;
 270             if (inFnTableW->SetContextAttributesW)
 271                 fnTableA->SetContextAttributesA =
 272                  thunk_SetContextAttributesA;
 273             /* this can't be thunked, there's no extra param to know which
 274              * package to forward to */
 275             fnTableA->EnumerateSecurityPackagesA = NULL;
 276             /* functions with no thunks needed */
 277             fnTableA->AcceptSecurityContext = inFnTableW->AcceptSecurityContext;
 278             fnTableA->CompleteAuthToken = inFnTableW->CompleteAuthToken;
 279             fnTableA->DeleteSecurityContext = inFnTableW->DeleteSecurityContext;
 280             fnTableA->ImpersonateSecurityContext =
 281              inFnTableW->ImpersonateSecurityContext;
 282             fnTableA->RevertSecurityContext = inFnTableW->RevertSecurityContext;
 283             fnTableA->MakeSignature = inFnTableW->MakeSignature;
 284             fnTableA->VerifySignature = inFnTableW->VerifySignature;
 285             fnTableA->FreeContextBuffer = inFnTableW->FreeContextBuffer;
 286             fnTableA->QuerySecurityPackageInfoA =
 287              QuerySecurityPackageInfoA;
 288             fnTableA->ExportSecurityContext =
 289              inFnTableW->ExportSecurityContext;
 290             fnTableA->QuerySecurityContextToken =
 291              inFnTableW->QuerySecurityContextToken;
 292             fnTableA->EncryptMessage = inFnTableW->EncryptMessage;
 293             fnTableA->DecryptMessage = inFnTableW->DecryptMessage;
 294         }
 295     }
 296 }
 297
 298 static void _makeFnTableW(PSecurityFunctionTableW fnTableW,
 299  const SecurityFunctionTableA *inFnTableA,
 300  const SecurityFunctionTableW *inFnTableW)
 301 {
 302     if (fnTableW)
 303     {
 304         if (inFnTableW)
 305         {
 306             /* The size of the version 1 table is based on platform sdk's
 307              * sspi.h, though the sample ssp also provided with platform sdk
 308              * implies only functions through QuerySecurityPackageInfoA are
 309              * implemented (yikes)
 310              */
 311             size_t tableSize = inFnTableW->dwVersion == 1 ?
 312              (const BYTE *)&inFnTableW->SetContextAttributesW -
 313              (const BYTE *)inFnTableW : sizeof(SecurityFunctionTableW);
 314
 315             memcpy(fnTableW, inFnTableW, tableSize);
 316             /* override this, since we can do it internally anyway */
 317             fnTableW->QuerySecurityPackageInfoW =
 318              QuerySecurityPackageInfoW;
 319         }
 320         else if (inFnTableA)
 321         {
 322             /* functions with thunks */
 323             if (inFnTableA->AcquireCredentialsHandleA)
 324                 fnTableW->AcquireCredentialsHandleW =
 325                  thunk_AcquireCredentialsHandleW;
 326             if (inFnTableA->InitializeSecurityContextA)
 327                 fnTableW->InitializeSecurityContextW =
 328                  thunk_InitializeSecurityContextW;
 329             if (inFnTableA->ImportSecurityContextA)
 330                 fnTableW->ImportSecurityContextW =
 331                  thunk_ImportSecurityContextW;
 332             if (inFnTableA->AddCredentialsA)
 333                 fnTableW->AddCredentialsW =
 334                  thunk_AddCredentialsW;
 335             if (inFnTableA->QueryCredentialsAttributesA)
 336                 fnTableW->QueryCredentialsAttributesW =
 337                  thunk_QueryCredentialsAttributesW;
 338             if (inFnTableA->QueryContextAttributesA)
 339                 fnTableW->QueryContextAttributesW =
 340                  thunk_QueryContextAttributesW;
 341             if (inFnTableA->SetContextAttributesA)
 342                 fnTableW->SetContextAttributesW =
 343                  thunk_SetContextAttributesW;
 344             /* this can't be thunked, there's no extra param to know which
 345              * package to forward to */
 346             fnTableW->EnumerateSecurityPackagesW = NULL;
 347             /* functions with no thunks needed */
 348             fnTableW->AcceptSecurityContext = inFnTableA->AcceptSecurityContext;
 349             fnTableW->CompleteAuthToken = inFnTableA->CompleteAuthToken;
 350             fnTableW->DeleteSecurityContext = inFnTableA->DeleteSecurityContext;
 351             fnTableW->ImpersonateSecurityContext =
 352              inFnTableA->ImpersonateSecurityContext;
 353             fnTableW->RevertSecurityContext = inFnTableA->RevertSecurityContext;
 354             fnTableW->MakeSignature = inFnTableA->MakeSignature;
 355             fnTableW->VerifySignature = inFnTableA->VerifySignature;
 356             fnTableW->FreeContextBuffer = inFnTableA->FreeContextBuffer;
 357             fnTableW->QuerySecurityPackageInfoW =
 358              QuerySecurityPackageInfoW;
 359             fnTableW->ExportSecurityContext =
 360              inFnTableA->ExportSecurityContext;
 361             fnTableW->QuerySecurityContextToken =
 362              inFnTableA->QuerySecurityContextToken;
 363             fnTableW->EncryptMessage = inFnTableA->EncryptMessage;
 364             fnTableW->DecryptMessage = inFnTableA->DecryptMessage;
 365         }
 366     }
 367 }
 368
 369 static void _copyPackageInfo(PSecPkgInfoW info, const SecPkgInfoA *inInfoA,
 370  const SecPkgInfoW *inInfoW)
 371 {
 372     if (info && (inInfoA || inInfoW))
 373     {
 374         /* odd, I know, but up until Name and Comment the structures are
 375          * identical
 376          */
 377         memcpy(info, inInfoW ? inInfoW : (const SecPkgInfoW *)inInfoA, sizeof(*info));
 378         if (inInfoW)
 379         {
 380             info->Name = SECUR32_strdupW(inInfoW->Name);
 381             info->Comment = SECUR32_strdupW(inInfoW->Comment);
 382         }
 383         else
 384         {
 385             info->Name = SECUR32_AllocWideFromMultiByte(inInfoA->Name);
 386             info->Comment = SECUR32_AllocWideFromMultiByte(inInfoA->Comment);
 387         }
 388     }
 389 }
 390
 391 SecureProvider *SECUR32_addProvider(const SecurityFunctionTableA *fnTableA,
 392  const SecurityFunctionTableW *fnTableW, PCWSTR moduleName)
 393 {
 394     SecureProvider *ret;
 395
 396     EnterCriticalSection(&cs);
 397
 398     if (!providerTable)
 399     {
 400         providerTable = HeapAlloc(GetProcessHeap(), 0, sizeof(SecureProviderTable));
 401         if (!providerTable)
 402         {
 403             LeaveCriticalSection(&cs);
 404             return NULL;
 405         }
 406
 407         list_init(&providerTable->table);
 408     }
 409
 410     ret = HeapAlloc(GetProcessHeap(), 0, sizeof(SecureProvider));
 411     if (!ret)
 412     {
 413         LeaveCriticalSection(&cs);
 414         return NULL;
 415     }
 416
 417     list_add_tail(&providerTable->table, &ret->entry);
 418     ret->lib = NULL;
 419
 420     if (fnTableA || fnTableW)
 421     {
 422         ret->moduleName = moduleName ? SECUR32_strdupW(moduleName) : NULL;
 423         _makeFnTableA(&ret->fnTableA, fnTableA, fnTableW);
 424         _makeFnTableW(&ret->fnTableW, fnTableA, fnTableW);
 425         ret->loaded = moduleName ? FALSE : TRUE;
 426     }
 427     else
 428     {
 429         ret->moduleName = SECUR32_strdupW(moduleName);
 430         ret->loaded = FALSE;
 431     }
 432
 433     LeaveCriticalSection(&cs);
 434     return ret;
 435 }
 436
 437 void SECUR32_addPackages(SecureProvider *provider, ULONG toAdd,
 438  const SecPkgInfoA *infoA, const SecPkgInfoW *infoW)
 439 {
 440     ULONG i;
 441
 442     assert(provider);
 443     assert(infoA || infoW);
 444
 445     EnterCriticalSection(&cs);
 446
 447     if (!packageTable)
 448     {
 449         packageTable = HeapAlloc(GetProcessHeap(), 0, sizeof(SecurePackageTable));
 450         if (!packageTable)
 451         {
 452             LeaveCriticalSection(&cs);
 453             return;
 454         }
 455
 456         packageTable->numPackages = 0;
 457         list_init(&packageTable->table);
 458     }
 459
 460     for (i = 0; i < toAdd; i++)
 461     {
 462         SecurePackage *package = HeapAlloc(GetProcessHeap(), 0, sizeof(SecurePackage));
 463         if (!package)
 464             continue;
 465
 466         list_add_tail(&packageTable->table, &package->entry);
 467
 468         package->provider = provider;
 469         _copyPackageInfo(&package->infoW,
 470             infoA ? &infoA[i] : NULL,
 471             infoW ? &infoW[i] : NULL);
 472     }
 473     packageTable->numPackages += toAdd;
 474
 475     LeaveCriticalSection(&cs);
 476 }
 477
 478 static void _tryLoadProvider(PWSTR moduleName)
 479 {
 480     HMODULE lib = LoadLibraryW(moduleName);
 481
 482     if (lib)
 483     {
 484         INIT_SECURITY_INTERFACE_W pInitSecurityInterfaceW =
 485          (INIT_SECURITY_INTERFACE_W)GetProcAddress(lib,
 486          SECURITY_ENTRYPOINT_ANSIW);
 487         INIT_SECURITY_INTERFACE_A pInitSecurityInterfaceA =
 488          (INIT_SECURITY_INTERFACE_A)GetProcAddress(lib,
 489          SECURITY_ENTRYPOINT_ANSIA);
 490
 491         TRACE("loaded %s, InitSecurityInterfaceA is %p, InitSecurityInterfaceW is %p\n",
 492          debugstr_w(moduleName), pInitSecurityInterfaceA,
 493          pInitSecurityInterfaceW);
 494         if (pInitSecurityInterfaceW || pInitSecurityInterfaceA)
 495         {
 496             PSecurityFunctionTableA fnTableA = NULL;
 497             PSecurityFunctionTableW fnTableW = NULL;
 498             ULONG toAdd = 0;
 499             PSecPkgInfoA infoA = NULL;
 500             PSecPkgInfoW infoW = NULL;
 501             SECURITY_STATUS ret = SEC_E_OK;
 502
 503             if (pInitSecurityInterfaceA)
 504                 fnTableA = pInitSecurityInterfaceA();
 505             if (pInitSecurityInterfaceW)
 506                 fnTableW = pInitSecurityInterfaceW();
 507             if (fnTableW && fnTableW->EnumerateSecurityPackagesW)
 508             {
 509                 if (fnTableW != &securityFunctionTableW)
 510                     ret = fnTableW->EnumerateSecurityPackagesW(&toAdd, &infoW);
 511                 else
 512                     TRACE("%s has built-in providers, skip adding\n", debugstr_w(moduleName));
 513             }
 514             else if (fnTableA && fnTableA->EnumerateSecurityPackagesA)
 515             {
 516                 if (fnTableA != &securityFunctionTableA)
 517                     ret = fnTableA->EnumerateSecurityPackagesA(&toAdd, &infoA);
 518                 else
 519                     TRACE("%s has built-in providers, skip adding\n", debugstr_w(moduleName));
 520             }
 521             if (ret == SEC_E_OK && toAdd > 0 && (infoW || infoA))
 522             {
 523                 SecureProvider *provider = SECUR32_addProvider(NULL, NULL,
 524                  moduleName);
 525
 526                 if (provider)
 527                     SECUR32_addPackages(provider, toAdd, infoA, infoW);
 528                 if (infoW)
 529                     fnTableW->FreeContextBuffer(infoW);
 530                 else
 531                     fnTableA->FreeContextBuffer(infoA);
 532             }
 533         }
 534         FreeLibrary(lib);
 535     }
 536     else
 537         WARN("failed to load %s\n", debugstr_w(moduleName));
 538 }
 539
 540 static const WCHAR securityProvidersKeyW[] = {
 541  'S','Y','S','T','E','M','\\','C','u','r','r','e','n','t','C','o','n','t','r',
 542  'o','l','S','e','t','\\','C','o','n','t','r','o','l','\\','S','e','c','u','r',
 543  'i','t','y','P','r','o','v','i','d','e','r','s','\0'
 544  };
 545 static const WCHAR securityProvidersW[] = {
 546  'S','e','c','u','r','i','t','y','P','r','o','v','i','d','e','r','s',0
 547  };
 548
 549 static void SECUR32_initializeProviders(void)
 550 {
 551     HKEY key;
 552     long apiRet;
 553
 554     TRACE("\n");
 555     InitializeCriticalSection(&cs);
 556     cs.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": cs");
 557     /* First load built-in providers */
 558     SECUR32_initSchannelSP();
 559     /* Do not load Negotiate yet. This breaks for some user on the wine-users
 560      * mailing list as of 2006-09-12. Without Negotiate, applications should
 561      * fall back to NTLM and that should work.*/
 562 #if 0
 563     SECUR32_initNegotiateSP();
 564 #endif
 565     SECUR32_initNTLMSP();
 566     /* Now load providers from registry */
 567     apiRet = RegOpenKeyExW(HKEY_LOCAL_MACHINE, securityProvidersKeyW, 0,
 568      KEY_READ, &key);
 569     if (apiRet == ERROR_SUCCESS)
 570     {
 571         WCHAR securityPkgNames[MAX_PATH]; /* arbitrary len */
 572         DWORD size = sizeof(securityPkgNames) / sizeof(WCHAR), type;
 573
 574         apiRet = RegQueryValueExW(key, securityProvidersW, NULL, &type,
 575          (PBYTE)securityPkgNames, &size);
 576         if (apiRet == ERROR_SUCCESS && type == REG_SZ)
 577         {
 578             WCHAR *ptr;
 579
 580             size = size / sizeof(WCHAR);
 581             for (ptr = securityPkgNames;
 582               ptr < securityPkgNames + size; )
 583             {
 584                 WCHAR *comma;
 585
 586                 for (comma = ptr; *comma && *comma != ','; comma++)
 587                     ;
 588                 if (*comma == ',')
 589                     *comma = '\0';
 590                 for (; *ptr && isspace(*ptr) && ptr < securityPkgNames + size;
 591                  ptr++)
 592                     ;
 593                 if (*ptr)
 594                     _tryLoadProvider(ptr);
 595                 ptr += lstrlenW(ptr) + 1;
 596             }
 597         }
 598         RegCloseKey(key);
 599     }
 600 }
 601
 602 SecurePackage *SECUR32_findPackageW(PCWSTR packageName)
 603 {
 604     SecurePackage *ret = NULL;
 605     BOOL matched = FALSE;
 606
 607     if (packageTable && packageName)
 608     {
 609         LIST_FOR_EACH_ENTRY(ret, &packageTable->table, SecurePackage, entry)
 610         {
 611             matched = !lstrcmpiW(ret->infoW.Name, packageName);
 612             if (matched)
 613                 break;
 614         }
 615
 616         if (!matched)
 617                 return NULL;
 618
 619         if (ret->provider && !ret->provider->loaded)
 620         {
 621             ret->provider->lib = LoadLibraryW(ret->provider->moduleName);
 622             if (ret->provider->lib)
 623             {
 624                 INIT_SECURITY_INTERFACE_W pInitSecurityInterfaceW =
 625                  (INIT_SECURITY_INTERFACE_W)GetProcAddress(ret->provider->lib,
 626                  SECURITY_ENTRYPOINT_ANSIW);
 627                 INIT_SECURITY_INTERFACE_A pInitSecurityInterfaceA =
 628                  (INIT_SECURITY_INTERFACE_A)GetProcAddress(ret->provider->lib,
 629                  SECURITY_ENTRYPOINT_ANSIA);
 630                 PSecurityFunctionTableA fnTableA = NULL;
 631                 PSecurityFunctionTableW fnTableW = NULL;
 632
 633                 if (pInitSecurityInterfaceA)
 634                     fnTableA = pInitSecurityInterfaceA();
 635                 if (pInitSecurityInterfaceW)
 636                     fnTableW = pInitSecurityInterfaceW();
 637                 /* don't update built-in SecurityFunctionTable */
 638                 if (fnTableA != &securityFunctionTableA)
 639                     _makeFnTableA(&ret->provider->fnTableA, fnTableA, fnTableW);
 640                 if (fnTableW != &securityFunctionTableW)
 641                     _makeFnTableW(&ret->provider->fnTableW, fnTableA, fnTableW);
 642                 ret->provider->loaded = TRUE;
 643             }
 644             else
 645                 ret = NULL;
 646         }
 647     }
 648     return ret;
 649 }
 650
 651 SecurePackage *SECUR32_findPackageA(PCSTR packageName)
 652 {
 653     SecurePackage *ret;
 654
 655     if (packageTable && packageName)
 656     {
 657         UNICODE_STRING package;
 658
 659         RtlCreateUnicodeStringFromAsciiz(&package, packageName);
 660         ret = SECUR32_findPackageW(package.Buffer);
 661         RtlFreeUnicodeString(&package);
 662     }
 663     else
 664         ret = NULL;
 665     return ret;
 666 }
 667
 668 static void SECUR32_freeProviders(void)
 669 {
 670     SecurePackage *package;
 671     SecureProvider *provider;
 672
 673     TRACE("\n");
 674     EnterCriticalSection(&cs);
 675
 676     if (packageTable)
 677     {
 678         LIST_FOR_EACH_ENTRY(package, &packageTable->table, SecurePackage, entry)
 679         {
 680             HeapFree(GetProcessHeap(), 0, package->infoW.Name);
 681             HeapFree(GetProcessHeap(), 0, package->infoW.Comment);
 682         }
 683
 684         HeapFree(GetProcessHeap(), 0, packageTable);
 685         packageTable = NULL;
 686     }
 687
 688     if (providerTable)
 689     {
 690         LIST_FOR_EACH_ENTRY(provider, &providerTable->table, SecureProvider, entry)
 691         {
 692             HeapFree(GetProcessHeap(), 0, provider->moduleName);
 693             if (provider->lib)
 694                 FreeLibrary(provider->lib);
 695         }
 696
 697         HeapFree(GetProcessHeap(), 0, providerTable);
 698         providerTable = NULL;
 699     }
 700
 701     LeaveCriticalSection(&cs);
 702     cs.DebugInfo->Spare[0] = 0;
 703     DeleteCriticalSection(&cs);
 704 }
 705
 706 /***********************************************************************
 707  *              FreeContextBuffer (SECUR32.@)
 708  *
 709  * Doh--if pv was allocated by a crypto package, this may not be correct.
 710  * The sample ssp seems to use LocalAlloc/LocalFee, but there doesn't seem to
 711  * be any guarantee, nor is there an alloc function in secur32.
 712  */
 713 SECURITY_STATUS WINAPI FreeContextBuffer(PVOID pv)
 714 {
 715     HeapFree(GetProcessHeap(), 0, pv);
 716
 717     return SEC_E_OK;
 718 }
 719
 720 /***********************************************************************
 721  *              EnumerateSecurityPackagesW (SECUR32.@)
 722  */
 723 SECURITY_STATUS WINAPI EnumerateSecurityPackagesW(PULONG pcPackages,
 724  PSecPkgInfoW *ppPackageInfo)
 725 {
 726     SECURITY_STATUS ret = SEC_E_OK;
 727
 728     TRACE("(%p, %p)\n", pcPackages, ppPackageInfo);
 729
 730     /* windows just crashes if pcPackages or ppPackageInfo is NULL, so will I */
 731     *pcPackages = 0;
 732     EnterCriticalSection(&cs);
 733     if (packageTable)
 734     {
 735         SecurePackage *package;
 736         size_t bytesNeeded;
 737
 738         bytesNeeded = packageTable->numPackages * sizeof(SecPkgInfoW);
 739         LIST_FOR_EACH_ENTRY(package, &packageTable->table, SecurePackage, entry)
 740         {
 741             if (package->infoW.Name)
 742                 bytesNeeded += (lstrlenW(package->infoW.Name) + 1) * sizeof(WCHAR);
 743             if (package->infoW.Comment)
 744                 bytesNeeded += (lstrlenW(package->infoW.Comment) + 1) * sizeof(WCHAR);
 745         }
 746         if (bytesNeeded)
 747         {
 748             *ppPackageInfo = HeapAlloc(GetProcessHeap(), 0, bytesNeeded);
 749             if (*ppPackageInfo)
 750             {
 751                 ULONG i = 0;
 752                 PWSTR nextString;
 753
 754                 *pcPackages = packageTable->numPackages;
 755                 nextString = (PWSTR)((PBYTE)*ppPackageInfo +
 756                  packageTable->numPackages * sizeof(SecPkgInfoW));
 757                 LIST_FOR_EACH_ENTRY(package, &packageTable->table, SecurePackage, entry)
 758                 {
 759                     PSecPkgInfoW pkgInfo = *ppPackageInfo + i++;
 760
 761                     *pkgInfo = package->infoW;
 762                     if (package->infoW.Name)
 763                     {
 764                         TRACE("Name[%d] = %s\n", i - 1, debugstr_w(package->infoW.Name));
 765                         pkgInfo->Name = nextString;
 766                         lstrcpyW(nextString, package->infoW.Name);
 767                         nextString += lstrlenW(nextString) + 1;
 768                     }
 769                     else
 770                         pkgInfo->Name = NULL;
 771                     if (package->infoW.Comment)
 772                     {
 773                         TRACE("Comment[%d] = %s\n", i - 1, debugstr_w(package->infoW.Comment));
 774                         pkgInfo->Comment = nextString;
 775                         lstrcpyW(nextString, package->infoW.Comment);
 776                         nextString += lstrlenW(nextString) + 1;
 777                     }
 778                     else
 779                         pkgInfo->Comment = NULL;
 780                 }
 781             }
 782             else
 783                 ret = SEC_E_INSUFFICIENT_MEMORY;
 784         }
 785     }
 786     LeaveCriticalSection(&cs);
 787     TRACE("<-- 0x%08x\n", ret);
 788     return ret;
 789 }
 790
 791 /* Converts info (which is assumed to be an array of cPackages SecPkgInfoW
 792  * structures) into an array of SecPkgInfoA structures, which it returns.
 793  */
 794 static PSecPkgInfoA thunk_PSecPkgInfoWToA(ULONG cPackages,
 795  const SecPkgInfoW *info)
 796 {
 797     PSecPkgInfoA ret;
 798
 799     if (info)
 800     {
 801         size_t bytesNeeded = cPackages * sizeof(SecPkgInfoA);
 802         ULONG i;
 803
 804         for (i = 0; i < cPackages; i++)
 805         {
 806             if (info[i].Name)
 807                 bytesNeeded += WideCharToMultiByte(CP_ACP, 0, info[i].Name,
 808                  -1, NULL, 0, NULL, NULL);
 809             if (info[i].Comment)
 810                 bytesNeeded += WideCharToMultiByte(CP_ACP, 0, info[i].Comment,
 811                  -1, NULL, 0, NULL, NULL);
 812         }
 813         ret = HeapAlloc(GetProcessHeap(), 0, bytesNeeded);
 814         if (ret)
 815         {
 816             PSTR nextString;
 817
 818             nextString = (PSTR)((PBYTE)ret + cPackages * sizeof(SecPkgInfoA));
 819             for (i = 0; i < cPackages; i++)
 820             {
 821                 PSecPkgInfoA pkgInfo = ret + i;
 822                 int bytes;
 823
 824                 memcpy(pkgInfo, &info[i], sizeof(SecPkgInfoA));
 825                 if (info[i].Name)
 826                 {
 827                     pkgInfo->Name = nextString;
 828                     /* just repeat back to WideCharToMultiByte how many bytes
 829                      * it requires, since we asked it earlier
 830                      */
 831                     bytes = WideCharToMultiByte(CP_ACP, 0, info[i].Name, -1,
 832                      NULL, 0, NULL, NULL);
 833                     WideCharToMultiByte(CP_ACP, 0, info[i].Name, -1,
 834                      pkgInfo->Name, bytes, NULL, NULL);
 835                     nextString += lstrlenA(nextString) + 1;
 836                 }
 837                 else
 838                     pkgInfo->Name = NULL;
 839                 if (info[i].Comment)
 840                 {
 841                     pkgInfo->Comment = nextString;
 842                     /* just repeat back to WideCharToMultiByte how many bytes
 843                      * it requires, since we asked it earlier
 844                      */
 845                     bytes = WideCharToMultiByte(CP_ACP, 0, info[i].Comment, -1,
 846                      NULL, 0, NULL, NULL);
 847                     WideCharToMultiByte(CP_ACP, 0, info[i].Comment, -1,
 848                      pkgInfo->Comment, bytes, NULL, NULL);
 849                     nextString += lstrlenA(nextString) + 1;
 850                 }
 851                 else
 852                     pkgInfo->Comment = NULL;
 853             }
 854         }
 855     }
 856     else
 857         ret = NULL;
 858     return ret;
 859 }
 860
 861 /***********************************************************************
 862  *              EnumerateSecurityPackagesA (SECUR32.@)
 863  */
 864 SECURITY_STATUS WINAPI EnumerateSecurityPackagesA(PULONG pcPackages,
 865  PSecPkgInfoA *ppPackageInfo)
 866 {
 867     SECURITY_STATUS ret;
 868     PSecPkgInfoW info;
 869
 870     ret = EnumerateSecurityPackagesW(pcPackages, &info);
 871     if (ret == SEC_E_OK && *pcPackages && info)
 872     {
 873         *ppPackageInfo = thunk_PSecPkgInfoWToA(*pcPackages, info);
 874         if (*pcPackages && !*ppPackageInfo)
 875         {
 876             *pcPackages = 0;
 877             ret = SEC_E_INSUFFICIENT_MEMORY;
 878         }
 879         FreeContextBuffer(info);
 880     }
 881     return ret;
 882 }
 883
 884 /***********************************************************************
 885  *              GetComputerObjectNameA (SECUR32.@)
 886  *
 887  * Get the local computer's name using the format specified.
 888  *
 889  * PARAMS
 890  *  NameFormat   [I] The format for the name.
 891  *  lpNameBuffer [O] Pointer to buffer to receive the name.
 892  *  nSize        [I/O] Size in characters of buffer.
 893  *
 894  * RETURNS
 895  *  TRUE  If the name was written to lpNameBuffer.
 896  *  FALSE If the name couldn't be written.
 897  *
 898  * NOTES
 899  *  If lpNameBuffer is NULL, then the size of the buffer needed to hold the
 900  *  name will be returned in *nSize.
 901  *
 902  *  nSize returns the number of characters written when lpNameBuffer is not
 903  *  NULL or the size of the buffer needed to hold the name when the buffer
 904  *  is too short or lpNameBuffer is NULL.
 905  *
 906  *  It the buffer is too short, ERROR_INSUFFICIENT_BUFFER error will be set.
 907  */
 908 BOOLEAN WINAPI GetComputerObjectNameA(
 909   EXTENDED_NAME_FORMAT NameFormat, LPSTR lpNameBuffer, PULONG nSize)
 910 {
 911     BOOLEAN rc;
 912     LPWSTR bufferW = NULL;
 913     ULONG sizeW = *nSize;
 914     TRACE("(%d %p %p)\n", NameFormat, lpNameBuffer, nSize);
 915     if (lpNameBuffer) {
 916         bufferW = HeapAlloc(GetProcessHeap(), 0, sizeW * sizeof(WCHAR));
 917         if (bufferW == NULL) {
 918             SetLastError(ERROR_NOT_ENOUGH_MEMORY);
 919             return FALSE;
 920         }
 921     }
 922     rc = GetComputerObjectNameW(NameFormat, bufferW, &sizeW);
 923     if (rc && bufferW) {
 924         ULONG len = WideCharToMultiByte(CP_ACP, 0, bufferW, -1, NULL, 0, NULL, NULL);
 925         WideCharToMultiByte(CP_ACP, 0, bufferW, -1, lpNameBuffer, *nSize, NULL, NULL);
 926         *nSize = len;
 927     }
 928     else
 929         *nSize = sizeW;
 930     HeapFree(GetProcessHeap(), 0, bufferW);
 931     return rc;
 932 }
 933
 934 /***********************************************************************
 935  *              GetComputerObjectNameW (SECUR32.@)
 936  */
 937 BOOLEAN WINAPI GetComputerObjectNameW(
 938   EXTENDED_NAME_FORMAT NameFormat, LPWSTR lpNameBuffer, PULONG nSize)
 939 {
 940     LSA_HANDLE policyHandle;
 941     LSA_OBJECT_ATTRIBUTES objectAttributes;
 942     PPOLICY_DNS_DOMAIN_INFO domainInfo;
 943     NTSTATUS ntStatus;
 944     BOOLEAN status;
 945     TRACE("(%d %p %p)\n", NameFormat, lpNameBuffer, nSize);
 946
 947     if (NameFormat == NameUnknown)
 948     {
 949         SetLastError(ERROR_INVALID_PARAMETER);
 950         return FALSE;
 951     }
 952
 953     ZeroMemory(&objectAttributes, sizeof(objectAttributes));
 954     objectAttributes.Length = sizeof(objectAttributes);
 955
 956     ntStatus = LsaOpenPolicy(NULL, &objectAttributes,
 957                              POLICY_VIEW_LOCAL_INFORMATION,
 958                              &policyHandle);
 959     if (ntStatus != STATUS_SUCCESS)
 960     {
 961         SetLastError(LsaNtStatusToWinError(ntStatus));
 962         WARN("LsaOpenPolicy failed with NT status %u\n", GetLastError());
 963         return FALSE;
 964     }
 965
 966     ntStatus = LsaQueryInformationPolicy(policyHandle,
 967                                          PolicyDnsDomainInformation,
 968                                          (PVOID *)&domainInfo);
 969     if (ntStatus != STATUS_SUCCESS)
 970     {
 971         SetLastError(LsaNtStatusToWinError(ntStatus));
 972         WARN("LsaQueryInformationPolicy failed with NT status %u\n",
 973              GetLastError());
 974         LsaClose(policyHandle);
 975         return FALSE;
 976     }
 977
 978     if (domainInfo->Sid)
 979     {
 980         switch (NameFormat)
 981         {
 982         case NameSamCompatible:
 983             {
 984                 WCHAR name[MAX_COMPUTERNAME_LENGTH + 1];
 985                 DWORD size = sizeof(name)/sizeof(name[0]);
 986                 if (GetComputerNameW(name, &size))
 987                 {
 988                     int len = domainInfo->Name.Length + size + 3;
 989                     if (lpNameBuffer)
 990                     {
 991                         if (*nSize < len)
 992                         {
 993                             *nSize = len;
 994                             SetLastError(ERROR_INSUFFICIENT_BUFFER);
 995                             status = FALSE;
 996                         }
 997                         else
 998                         {
 999                             WCHAR bs[] = { '\\', 0 };
1000                             WCHAR ds[] = { '$', 0 };
1001                             lstrcpyW(lpNameBuffer, domainInfo->Name.Buffer);
1002                             lstrcatW(lpNameBuffer, bs);
1003                             lstrcatW(lpNameBuffer, name);
1004                             lstrcatW(lpNameBuffer, ds);
1005                             status = TRUE;
1006                         }
1007                     }
1008                     else        /* just requesting length required */
1009                     {
1010                         *nSize = len;
1011                         status = TRUE;
1012                     }
1013                 }
1014                 else
1015                 {
1016                     SetLastError(ERROR_INTERNAL_ERROR);
1017                     status = FALSE;
1018                 }
1019             }
1020             break;
1021         case NameFullyQualifiedDN:
1022         case NameDisplay:
1023         case NameUniqueId:
1024         case NameCanonical:
1025         case NameUserPrincipal:
1026         case NameCanonicalEx:
1027         case NameServicePrincipal:
1028         case NameDnsDomain:
1029             FIXME("NameFormat %d not implemented\n", NameFormat);
1030             SetLastError(ERROR_CANT_ACCESS_DOMAIN_INFO);
1031             status = FALSE;
1032             break;
1033         default:
1034             SetLastError(ERROR_INVALID_PARAMETER);
1035             status = FALSE;
1036         }
1037     }
1038     else
1039     {
1040         SetLastError(ERROR_CANT_ACCESS_DOMAIN_INFO);
1041         status = FALSE;
1042     }
1043
1044     LsaFreeMemory(domainInfo);
1045     LsaClose(policyHandle);
1046
1047     return status;
1048 }
1049
1050 /***********************************************************************
1051  *              GetUserNameExA (SECUR32.@)
1052  */
1053 BOOLEAN WINAPI GetUserNameExA(
1054   EXTENDED_NAME_FORMAT NameFormat, LPSTR lpNameBuffer, PULONG nSize)
1055 {
1056     FIXME("%d %p %p\n", NameFormat, lpNameBuffer, nSize);
1057     return FALSE;
1058 }
1059
1060 BOOLEAN WINAPI GetUserNameExW(
1061   EXTENDED_NAME_FORMAT NameFormat, LPWSTR lpNameBuffer, PULONG nSize)
1062 {
1063     FIXME("%d %p %p\n", NameFormat, lpNameBuffer, nSize);
1064     return FALSE;
1065 }
1066
1067 BOOLEAN WINAPI TranslateNameA(
1068   LPCSTR lpAccountName, EXTENDED_NAME_FORMAT AccountNameFormat,
1069   EXTENDED_NAME_FORMAT DesiredNameFormat, LPSTR lpTranslatedName,
1070   PULONG nSize)
1071 {
1072     FIXME("%p %d %d %p %p\n", lpAccountName, AccountNameFormat,
1073           DesiredNameFormat, lpTranslatedName, nSize);
1074     return FALSE;
1075 }
1076
1077 BOOLEAN WINAPI TranslateNameW(
1078   LPCWSTR lpAccountName, EXTENDED_NAME_FORMAT AccountNameFormat,
1079   EXTENDED_NAME_FORMAT DesiredNameFormat, LPWSTR lpTranslatedName,
1080   PULONG nSize)
1081 {
1082     FIXME("%p %d %d %p %p\n", lpAccountName, AccountNameFormat,
1083           DesiredNameFormat, lpTranslatedName, nSize);
1084     return FALSE;
1085 }
1086
1087 /***********************************************************************
1088  *              DllMain (SECUR32.0)
1089  */
1090 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
1091 {
1092     if (fdwReason == DLL_PROCESS_ATTACH)
1093     {
1094         DisableThreadLibraryCalls(hinstDLL);
1095         SECUR32_initializeProviders();
1096     }
1097     else if (fdwReason == DLL_PROCESS_DETACH)
1098     {
1099         SECUR32_freeProviders();
1100     }
1101
1102     return TRUE;
1103 }