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 #include "lmcons.h"
  36
  37 #include "wine/list.h"
  38 #include "wine/debug.h"
  39
  40 WINE_DEFAULT_DEBUG_CHANNEL(secur32);
  41
  42 /**
  43  *  Type definitions
  44  */
  45
  46 typedef struct _SecurePackageTable
  47 {
  48     DWORD numPackages;
  49     DWORD numAllocated;
  50     struct list table;
  51 } SecurePackageTable;
  52
  53 typedef struct _SecureProviderTable
  54 {
  55     DWORD numProviders;
  56     DWORD numAllocated;
  57     struct list table;
  58 } SecureProviderTable;
  59
  60 /**
  61  *  Prototypes
  62  */
  63
  64 /* Tries to load moduleName as a provider.  If successful, enumerates what
  65  * packages it can and adds them to the package and provider tables.  Resizes
  66  * tables as necessary.
  67  */
  68 static void _tryLoadProvider(PWSTR moduleName);
  69
  70 /* Initialization: read securityproviders value and attempt to open each dll
  71  * there.  For each DLL, call _tryLoadProvider to see if it's really an SSP.
  72  * Two undocumented functions, AddSecurityPackage(A/W) and
  73  * DeleteSecurityPackage(A/W), seem suspiciously like they'd register or
  74  * unregister a dll, but I'm not sure.
  75  */
  76 static void SECUR32_initializeProviders(void);
  77
  78 /* Frees all loaded packages and providers */
  79 static void SECUR32_freeProviders(void);
  80
  81 /**
  82  *  Globals
  83  */
  84
  85 static CRITICAL_SECTION cs;
  86 static SecurePackageTable *packageTable = NULL;
  87 static SecureProviderTable *providerTable = NULL;
  88
  89 static SecurityFunctionTableA securityFunctionTableA = {
  90     SECURITY_SUPPORT_PROVIDER_INTERFACE_VERSION,
  91     EnumerateSecurityPackagesA,
  92     QueryCredentialsAttributesA,
  93     AcquireCredentialsHandleA,
  94     FreeCredentialsHandle,
  95     NULL, /* Reserved2 */
  96     InitializeSecurityContextA,
  97     AcceptSecurityContext,
  98     CompleteAuthToken,
  99     DeleteSecurityContext,
 100     ApplyControlToken,
 101     QueryContextAttributesA,
 102     ImpersonateSecurityContext,
 103     RevertSecurityContext,
 104     MakeSignature,
 105     VerifySignature,
 106     FreeContextBuffer,
 107     QuerySecurityPackageInfoA,
 108     EncryptMessage, /* Reserved3 */
 109     DecryptMessage, /* Reserved4 */
 110     ExportSecurityContext,
 111     ImportSecurityContextA,
 112     AddCredentialsA,
 113     NULL, /* Reserved8 */
 114     QuerySecurityContextToken,
 115     EncryptMessage,
 116     DecryptMessage,
 117     SetContextAttributesA
 118 };
 119
 120 static SecurityFunctionTableW securityFunctionTableW = {
 121     SECURITY_SUPPORT_PROVIDER_INTERFACE_VERSION,
 122     EnumerateSecurityPackagesW,
 123     QueryCredentialsAttributesW,
 124     AcquireCredentialsHandleW,
 125     FreeCredentialsHandle,
 126     NULL, /* Reserved2 */
 127     InitializeSecurityContextW,
 128     AcceptSecurityContext,
 129     CompleteAuthToken,
 130     DeleteSecurityContext,
 131     ApplyControlToken,
 132     QueryContextAttributesW,
 133     ImpersonateSecurityContext,
 134     RevertSecurityContext,
 135     MakeSignature,
 136     VerifySignature,
 137     FreeContextBuffer,
 138     QuerySecurityPackageInfoW,
 139     EncryptMessage, /* Reserved3 */
 140     DecryptMessage, /* Reserved4 */
 141     ExportSecurityContext,
 142     ImportSecurityContextW,
 143     AddCredentialsW,
 144     NULL, /* Reserved8 */
 145     QuerySecurityContextToken,
 146     EncryptMessage,
 147     DecryptMessage,
 148     SetContextAttributesW
 149 };
 150
 151 /***********************************************************************
 152  *              InitSecurityInterfaceA (SECUR32.@)
 153  */
 154 PSecurityFunctionTableA WINAPI InitSecurityInterfaceA(void)
 155 {
 156     return &securityFunctionTableA;
 157 }
 158
 159 /***********************************************************************
 160  *              InitSecurityInterfaceW (SECUR32.@)
 161  */
 162 PSecurityFunctionTableW WINAPI InitSecurityInterfaceW(void)
 163 {
 164     return &securityFunctionTableW;
 165 }
 166
 167 static PWSTR SECUR32_strdupW(PCWSTR str)
 168 {
 169     PWSTR ret;
 170
 171     if (str)
 172     {
 173         ret = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(str) + 1) * sizeof(WCHAR));
 174         if (ret)
 175             lstrcpyW(ret, str);
 176     }
 177     else
 178         ret = NULL;
 179     return ret;
 180 }
 181
 182 PWSTR SECUR32_AllocWideFromMultiByte(PCSTR str)
 183 {
 184     PWSTR ret;
 185
 186     if (str)
 187     {
 188         int charsNeeded = MultiByteToWideChar(CP_ACP, 0, str, -1, NULL, 0);
 189
 190         if (charsNeeded)
 191         {
 192             ret = HeapAlloc(GetProcessHeap(), 0, charsNeeded * sizeof(WCHAR));
 193             if (ret)
 194                 MultiByteToWideChar(CP_ACP, 0, str, -1, ret, charsNeeded);
 195         }
 196         else
 197             ret = NULL;
 198     }
 199     else
 200         ret = NULL;
 201     return ret;
 202 }
 203
 204 PSTR SECUR32_AllocMultiByteFromWide(PCWSTR str)
 205 {
 206     PSTR ret;
 207
 208     if (str)
 209     {
 210         int charsNeeded = WideCharToMultiByte(CP_ACP, 0, str, -1, NULL, 0,
 211          NULL, NULL);
 212
 213         if (charsNeeded)
 214         {
 215             ret = HeapAlloc(GetProcessHeap(), 0, charsNeeded);
 216             if (ret)
 217                 WideCharToMultiByte(CP_ACP, 0, str, -1, ret, charsNeeded,
 218                  NULL, NULL);
 219         }
 220         else
 221             ret = NULL;
 222     }
 223     else
 224         ret = NULL;
 225     return ret;
 226 }
 227
 228 static void _makeFnTableA(PSecurityFunctionTableA fnTableA,
 229  const SecurityFunctionTableA *inFnTableA,
 230  const SecurityFunctionTableW *inFnTableW)
 231 {
 232     if (fnTableA)
 233     {
 234         if (inFnTableA)
 235         {
 236             /* The size of the version 1 table is based on platform sdk's
 237              * sspi.h, though the sample ssp also provided with platform sdk
 238              * implies only functions through QuerySecurityPackageInfoA are
 239              * implemented (yikes)
 240              */
 241             size_t tableSize = inFnTableA->dwVersion == 1 ?
 242              (const BYTE *)&inFnTableA->SetContextAttributesA -
 243              (const BYTE *)inFnTableA : sizeof(SecurityFunctionTableA);
 244
 245             memcpy(fnTableA, inFnTableA, tableSize);
 246             /* override this, since we can do it internally anyway */
 247             fnTableA->QuerySecurityPackageInfoA =
 248              QuerySecurityPackageInfoA;
 249         }
 250         else if (inFnTableW)
 251         {
 252             /* functions with thunks */
 253             if (inFnTableW->AcquireCredentialsHandleW)
 254                 fnTableA->AcquireCredentialsHandleA =
 255                  thunk_AcquireCredentialsHandleA;
 256             if (inFnTableW->InitializeSecurityContextW)
 257                 fnTableA->InitializeSecurityContextA =
 258                  thunk_InitializeSecurityContextA;
 259             if (inFnTableW->ImportSecurityContextW)
 260                 fnTableA->ImportSecurityContextA =
 261                  thunk_ImportSecurityContextA;
 262             if (inFnTableW->AddCredentialsW)
 263                 fnTableA->AddCredentialsA =
 264                  thunk_AddCredentialsA;
 265             if (inFnTableW->QueryCredentialsAttributesW)
 266                 fnTableA->QueryCredentialsAttributesA =
 267                  thunk_QueryCredentialsAttributesA;
 268             if (inFnTableW->QueryContextAttributesW)
 269                 fnTableA->QueryContextAttributesA =
 270                  thunk_QueryContextAttributesA;
 271             if (inFnTableW->SetContextAttributesW)
 272                 fnTableA->SetContextAttributesA =
 273                  thunk_SetContextAttributesA;
 274             /* this can't be thunked, there's no extra param to know which
 275              * package to forward to */
 276             fnTableA->EnumerateSecurityPackagesA = NULL;
 277             /* functions with no thunks needed */
 278             fnTableA->AcceptSecurityContext = inFnTableW->AcceptSecurityContext;
 279             fnTableA->CompleteAuthToken = inFnTableW->CompleteAuthToken;
 280             fnTableA->DeleteSecurityContext = inFnTableW->DeleteSecurityContext;
 281             fnTableA->ImpersonateSecurityContext =
 282              inFnTableW->ImpersonateSecurityContext;
 283             fnTableA->RevertSecurityContext = inFnTableW->RevertSecurityContext;
 284             fnTableA->MakeSignature = inFnTableW->MakeSignature;
 285             fnTableA->VerifySignature = inFnTableW->VerifySignature;
 286             fnTableA->FreeContextBuffer = inFnTableW->FreeContextBuffer;
 287             fnTableA->QuerySecurityPackageInfoA =
 288              QuerySecurityPackageInfoA;
 289             fnTableA->ExportSecurityContext =
 290              inFnTableW->ExportSecurityContext;
 291             fnTableA->QuerySecurityContextToken =
 292              inFnTableW->QuerySecurityContextToken;
 293             fnTableA->EncryptMessage = inFnTableW->EncryptMessage;
 294             fnTableA->DecryptMessage = inFnTableW->DecryptMessage;
 295         }
 296     }
 297 }
 298
 299 static void _makeFnTableW(PSecurityFunctionTableW fnTableW,
 300  const SecurityFunctionTableA *inFnTableA,
 301  const SecurityFunctionTableW *inFnTableW)
 302 {
 303     if (fnTableW)
 304     {
 305         if (inFnTableW)
 306         {
 307             /* The size of the version 1 table is based on platform sdk's
 308              * sspi.h, though the sample ssp also provided with platform sdk
 309              * implies only functions through QuerySecurityPackageInfoA are
 310              * implemented (yikes)
 311              */
 312             size_t tableSize = inFnTableW->dwVersion == 1 ?
 313              (const BYTE *)&inFnTableW->SetContextAttributesW -
 314              (const BYTE *)inFnTableW : sizeof(SecurityFunctionTableW);
 315
 316             memcpy(fnTableW, inFnTableW, tableSize);
 317             /* override this, since we can do it internally anyway */
 318             fnTableW->QuerySecurityPackageInfoW =
 319              QuerySecurityPackageInfoW;
 320         }
 321         else if (inFnTableA)
 322         {
 323             /* functions with thunks */
 324             if (inFnTableA->AcquireCredentialsHandleA)
 325                 fnTableW->AcquireCredentialsHandleW =
 326                  thunk_AcquireCredentialsHandleW;
 327             if (inFnTableA->InitializeSecurityContextA)
 328                 fnTableW->InitializeSecurityContextW =
 329                  thunk_InitializeSecurityContextW;
 330             if (inFnTableA->ImportSecurityContextA)
 331                 fnTableW->ImportSecurityContextW =
 332                  thunk_ImportSecurityContextW;
 333             if (inFnTableA->AddCredentialsA)
 334                 fnTableW->AddCredentialsW =
 335                  thunk_AddCredentialsW;
 336             if (inFnTableA->QueryCredentialsAttributesA)
 337                 fnTableW->QueryCredentialsAttributesW =
 338                  thunk_QueryCredentialsAttributesW;
 339             if (inFnTableA->QueryContextAttributesA)
 340                 fnTableW->QueryContextAttributesW =
 341                  thunk_QueryContextAttributesW;
 342             if (inFnTableA->SetContextAttributesA)
 343                 fnTableW->SetContextAttributesW =
 344                  thunk_SetContextAttributesW;
 345             /* this can't be thunked, there's no extra param to know which
 346              * package to forward to */
 347             fnTableW->EnumerateSecurityPackagesW = NULL;
 348             /* functions with no thunks needed */
 349             fnTableW->AcceptSecurityContext = inFnTableA->AcceptSecurityContext;
 350             fnTableW->CompleteAuthToken = inFnTableA->CompleteAuthToken;
 351             fnTableW->DeleteSecurityContext = inFnTableA->DeleteSecurityContext;
 352             fnTableW->ImpersonateSecurityContext =
 353              inFnTableA->ImpersonateSecurityContext;
 354             fnTableW->RevertSecurityContext = inFnTableA->RevertSecurityContext;
 355             fnTableW->MakeSignature = inFnTableA->MakeSignature;
 356             fnTableW->VerifySignature = inFnTableA->VerifySignature;
 357             fnTableW->FreeContextBuffer = inFnTableA->FreeContextBuffer;
 358             fnTableW->QuerySecurityPackageInfoW =
 359              QuerySecurityPackageInfoW;
 360             fnTableW->ExportSecurityContext =
 361              inFnTableA->ExportSecurityContext;
 362             fnTableW->QuerySecurityContextToken =
 363              inFnTableA->QuerySecurityContextToken;
 364             fnTableW->EncryptMessage = inFnTableA->EncryptMessage;
 365             fnTableW->DecryptMessage = inFnTableA->DecryptMessage;
 366         }
 367     }
 368 }
 369
 370 static void _copyPackageInfo(PSecPkgInfoW info, const SecPkgInfoA *inInfoA,
 371  const SecPkgInfoW *inInfoW)
 372 {
 373     if (info && (inInfoA || inInfoW))
 374     {
 375         /* odd, I know, but up until Name and Comment the structures are
 376          * identical
 377          */
 378         memcpy(info, inInfoW ? inInfoW : (const SecPkgInfoW *)inInfoA, sizeof(*info));
 379         if (inInfoW)
 380         {
 381             info->Name = SECUR32_strdupW(inInfoW->Name);
 382             info->Comment = SECUR32_strdupW(inInfoW->Comment);
 383         }
 384         else
 385         {
 386             info->Name = SECUR32_AllocWideFromMultiByte(inInfoA->Name);
 387             info->Comment = SECUR32_AllocWideFromMultiByte(inInfoA->Comment);
 388         }
 389     }
 390 }
 391
 392 SecureProvider *SECUR32_addProvider(const SecurityFunctionTableA *fnTableA,
 393  const SecurityFunctionTableW *fnTableW, PCWSTR moduleName)
 394 {
 395     SecureProvider *ret;
 396
 397     EnterCriticalSection(&cs);
 398
 399     if (!providerTable)
 400     {
 401         providerTable = HeapAlloc(GetProcessHeap(), 0, sizeof(SecureProviderTable));
 402         if (!providerTable)
 403         {
 404             LeaveCriticalSection(&cs);
 405             return NULL;
 406         }
 407
 408         list_init(&providerTable->table);
 409     }
 410
 411     ret = HeapAlloc(GetProcessHeap(), 0, sizeof(SecureProvider));
 412     if (!ret)
 413     {
 414         LeaveCriticalSection(&cs);
 415         return NULL;
 416     }
 417
 418     list_add_tail(&providerTable->table, &ret->entry);
 419     ret->lib = NULL;
 420
 421     if (fnTableA || fnTableW)
 422     {
 423         ret->moduleName = moduleName ? SECUR32_strdupW(moduleName) : NULL;
 424         _makeFnTableA(&ret->fnTableA, fnTableA, fnTableW);
 425         _makeFnTableW(&ret->fnTableW, fnTableA, fnTableW);
 426         ret->loaded = moduleName ? FALSE : TRUE;
 427     }
 428     else
 429     {
 430         ret->moduleName = SECUR32_strdupW(moduleName);
 431         ret->loaded = FALSE;
 432     }
 433
 434     LeaveCriticalSection(&cs);
 435     return ret;
 436 }
 437
 438 void SECUR32_addPackages(SecureProvider *provider, ULONG toAdd,
 439  const SecPkgInfoA *infoA, const SecPkgInfoW *infoW)
 440 {
 441     ULONG i;
 442
 443     assert(provider);
 444     assert(infoA || infoW);
 445
 446     EnterCriticalSection(&cs);
 447
 448     if (!packageTable)
 449     {
 450         packageTable = HeapAlloc(GetProcessHeap(), 0, sizeof(SecurePackageTable));
 451         if (!packageTable)
 452         {
 453             LeaveCriticalSection(&cs);
 454             return;
 455         }
 456
 457         packageTable->numPackages = 0;
 458         list_init(&packageTable->table);
 459     }
 460
 461     for (i = 0; i < toAdd; i++)
 462     {
 463         SecurePackage *package = HeapAlloc(GetProcessHeap(), 0, sizeof(SecurePackage));
 464         if (!package)
 465             continue;
 466
 467         list_add_tail(&packageTable->table, &package->entry);
 468
 469         package->provider = provider;
 470         _copyPackageInfo(&package->infoW,
 471             infoA ? &infoA[i] : NULL,
 472             infoW ? &infoW[i] : NULL);
 473     }
 474     packageTable->numPackages += toAdd;
 475
 476     LeaveCriticalSection(&cs);
 477 }
 478
 479 static void _tryLoadProvider(PWSTR moduleName)
 480 {
 481     HMODULE lib = LoadLibraryW(moduleName);
 482
 483     if (lib)
 484     {
 485         INIT_SECURITY_INTERFACE_W pInitSecurityInterfaceW =
 486          (INIT_SECURITY_INTERFACE_W)GetProcAddress(lib,
 487          SECURITY_ENTRYPOINT_ANSIW);
 488         INIT_SECURITY_INTERFACE_A pInitSecurityInterfaceA =
 489          (INIT_SECURITY_INTERFACE_A)GetProcAddress(lib,
 490          SECURITY_ENTRYPOINT_ANSIA);
 491
 492         TRACE("loaded %s, InitSecurityInterfaceA is %p, InitSecurityInterfaceW is %p\n",
 493          debugstr_w(moduleName), pInitSecurityInterfaceA,
 494          pInitSecurityInterfaceW);
 495         if (pInitSecurityInterfaceW || pInitSecurityInterfaceA)
 496         {
 497             PSecurityFunctionTableA fnTableA = NULL;
 498             PSecurityFunctionTableW fnTableW = NULL;
 499             ULONG toAdd = 0;
 500             PSecPkgInfoA infoA = NULL;
 501             PSecPkgInfoW infoW = NULL;
 502             SECURITY_STATUS ret = SEC_E_OK;
 503
 504             if (pInitSecurityInterfaceA)
 505                 fnTableA = pInitSecurityInterfaceA();
 506             if (pInitSecurityInterfaceW)
 507                 fnTableW = pInitSecurityInterfaceW();
 508             if (fnTableW && fnTableW->EnumerateSecurityPackagesW)
 509             {
 510                 if (fnTableW != &securityFunctionTableW)
 511                     ret = fnTableW->EnumerateSecurityPackagesW(&toAdd, &infoW);
 512                 else
 513                     TRACE("%s has built-in providers, skip adding\n", debugstr_w(moduleName));
 514             }
 515             else if (fnTableA && fnTableA->EnumerateSecurityPackagesA)
 516             {
 517                 if (fnTableA != &securityFunctionTableA)
 518                     ret = fnTableA->EnumerateSecurityPackagesA(&toAdd, &infoA);
 519                 else
 520                     TRACE("%s has built-in providers, skip adding\n", debugstr_w(moduleName));
 521             }
 522             if (ret == SEC_E_OK && toAdd > 0 && (infoW || infoA))
 523             {
 524                 SecureProvider *provider = SECUR32_addProvider(NULL, NULL,
 525                  moduleName);
 526
 527                 if (provider)
 528                     SECUR32_addPackages(provider, toAdd, infoA, infoW);
 529                 if (infoW)
 530                     fnTableW->FreeContextBuffer(infoW);
 531                 else
 532                     fnTableA->FreeContextBuffer(infoA);
 533             }
 534         }
 535         FreeLibrary(lib);
 536     }
 537     else
 538         WARN("failed to load %s\n", debugstr_w(moduleName));
 539 }
 540
 541 static const WCHAR securityProvidersKeyW[] = {
 542  'S','Y','S','T','E','M','\\','C','u','r','r','e','n','t','C','o','n','t','r',
 543  'o','l','S','e','t','\\','C','o','n','t','r','o','l','\\','S','e','c','u','r',
 544  'i','t','y','P','r','o','v','i','d','e','r','s','\0'
 545  };
 546 static const WCHAR securityProvidersW[] = {
 547  'S','e','c','u','r','i','t','y','P','r','o','v','i','d','e','r','s',0
 548  };
 549
 550 static void SECUR32_initializeProviders(void)
 551 {
 552     HKEY key;
 553     long apiRet;
 554
 555     TRACE("\n");
 556     InitializeCriticalSection(&cs);
 557     cs.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": cs");
 558     /* First load built-in providers */
 559     SECUR32_initSchannelSP();
 560     /* Do not load Negotiate yet. This breaks for some user on the wine-users
 561      * mailing list as of 2006-09-12. Without Negotiate, applications should
 562      * fall back to NTLM and that should work.*/
 563 #if 0
 564     SECUR32_initNegotiateSP();
 565 #endif
 566     SECUR32_initNTLMSP();
 567     /* Now load providers from registry */
 568     apiRet = RegOpenKeyExW(HKEY_LOCAL_MACHINE, securityProvidersKeyW, 0,
 569      KEY_READ, &key);
 570     if (apiRet == ERROR_SUCCESS)
 571     {
 572         WCHAR securityPkgNames[MAX_PATH]; /* arbitrary len */
 573         DWORD size = sizeof(securityPkgNames) / sizeof(WCHAR), type;
 574
 575         apiRet = RegQueryValueExW(key, securityProvidersW, NULL, &type,
 576          (PBYTE)securityPkgNames, &size);
 577         if (apiRet == ERROR_SUCCESS && type == REG_SZ)
 578         {
 579             WCHAR *ptr;
 580
 581             size = size / sizeof(WCHAR);
 582             for (ptr = securityPkgNames;
 583               ptr < securityPkgNames + size; )
 584             {
 585                 WCHAR *comma;
 586
 587                 for (comma = ptr; *comma && *comma != ','; comma++)
 588                     ;
 589                 if (*comma == ',')
 590                     *comma = '\0';
 591                 for (; *ptr && isspace(*ptr) && ptr < securityPkgNames + size;
 592                  ptr++)
 593                     ;
 594                 if (*ptr)
 595                     _tryLoadProvider(ptr);
 596                 ptr += lstrlenW(ptr) + 1;
 597             }
 598         }
 599         RegCloseKey(key);
 600     }
 601 }
 602
 603 SecurePackage *SECUR32_findPackageW(PCWSTR packageName)
 604 {
 605     SecurePackage *ret = NULL;
 606     BOOL matched = FALSE;
 607
 608     if (packageTable && packageName)
 609     {
 610         LIST_FOR_EACH_ENTRY(ret, &packageTable->table, SecurePackage, entry)
 611         {
 612             matched = !lstrcmpiW(ret->infoW.Name, packageName);
 613             if (matched)
 614                 break;
 615         }
 616
 617         if (!matched)
 618                 return NULL;
 619
 620         if (ret->provider && !ret->provider->loaded)
 621         {
 622             ret->provider->lib = LoadLibraryW(ret->provider->moduleName);
 623             if (ret->provider->lib)
 624             {
 625                 INIT_SECURITY_INTERFACE_W pInitSecurityInterfaceW =
 626                  (INIT_SECURITY_INTERFACE_W)GetProcAddress(ret->provider->lib,
 627                  SECURITY_ENTRYPOINT_ANSIW);
 628                 INIT_SECURITY_INTERFACE_A pInitSecurityInterfaceA =
 629                  (INIT_SECURITY_INTERFACE_A)GetProcAddress(ret->provider->lib,
 630                  SECURITY_ENTRYPOINT_ANSIA);
 631                 PSecurityFunctionTableA fnTableA = NULL;
 632                 PSecurityFunctionTableW fnTableW = NULL;
 633
 634                 if (pInitSecurityInterfaceA)
 635                     fnTableA = pInitSecurityInterfaceA();
 636                 if (pInitSecurityInterfaceW)
 637                     fnTableW = pInitSecurityInterfaceW();
 638                 /* don't update built-in SecurityFunctionTable */
 639                 if (fnTableA != &securityFunctionTableA)
 640                     _makeFnTableA(&ret->provider->fnTableA, fnTableA, fnTableW);
 641                 if (fnTableW != &securityFunctionTableW)
 642                     _makeFnTableW(&ret->provider->fnTableW, fnTableA, fnTableW);
 643                 ret->provider->loaded = TRUE;
 644             }
 645             else
 646                 ret = NULL;
 647         }
 648     }
 649     return ret;
 650 }
 651
 652 SecurePackage *SECUR32_findPackageA(PCSTR packageName)
 653 {
 654     SecurePackage *ret;
 655
 656     if (packageTable && packageName)
 657     {
 658         UNICODE_STRING package;
 659
 660         RtlCreateUnicodeStringFromAsciiz(&package, packageName);
 661         ret = SECUR32_findPackageW(package.Buffer);
 662         RtlFreeUnicodeString(&package);
 663     }
 664     else
 665         ret = NULL;
 666     return ret;
 667 }
 668
 669 static void SECUR32_freeProviders(void)
 670 {
 671     SecurePackage *package;
 672     SecureProvider *provider;
 673
 674     TRACE("\n");
 675     EnterCriticalSection(&cs);
 676
 677     SECUR32_deinitSchannelSP();
 678
 679     if (packageTable)
 680     {
 681         LIST_FOR_EACH_ENTRY(package, &packageTable->table, SecurePackage, entry)
 682         {
 683             HeapFree(GetProcessHeap(), 0, package->infoW.Name);
 684             HeapFree(GetProcessHeap(), 0, package->infoW.Comment);
 685         }
 686
 687         HeapFree(GetProcessHeap(), 0, packageTable);
 688         packageTable = NULL;
 689     }
 690
 691     if (providerTable)
 692     {
 693         LIST_FOR_EACH_ENTRY(provider, &providerTable->table, SecureProvider, entry)
 694         {
 695             HeapFree(GetProcessHeap(), 0, provider->moduleName);
 696             if (provider->lib)
 697                 FreeLibrary(provider->lib);
 698         }
 699
 700         HeapFree(GetProcessHeap(), 0, providerTable);
 701         providerTable = NULL;
 702     }
 703
 704     LeaveCriticalSection(&cs);
 705     cs.DebugInfo->Spare[0] = 0;
 706     DeleteCriticalSection(&cs);
 707 }
 708
 709 /***********************************************************************
 710  *              FreeContextBuffer (SECUR32.@)
 711  *
 712  * Doh--if pv was allocated by a crypto package, this may not be correct.
 713  * The sample ssp seems to use LocalAlloc/LocalFee, but there doesn't seem to
 714  * be any guarantee, nor is there an alloc function in secur32.
 715  */
 716 SECURITY_STATUS WINAPI FreeContextBuffer(PVOID pv)
 717 {
 718     HeapFree(GetProcessHeap(), 0, pv);
 719
 720     return SEC_E_OK;
 721 }
 722
 723 /***********************************************************************
 724  *              EnumerateSecurityPackagesW (SECUR32.@)
 725  */
 726 SECURITY_STATUS WINAPI EnumerateSecurityPackagesW(PULONG pcPackages,
 727  PSecPkgInfoW *ppPackageInfo)
 728 {
 729     SECURITY_STATUS ret = SEC_E_OK;
 730
 731     TRACE("(%p, %p)\n", pcPackages, ppPackageInfo);
 732
 733     /* windows just crashes if pcPackages or ppPackageInfo is NULL, so will I */
 734     *pcPackages = 0;
 735     EnterCriticalSection(&cs);
 736     if (packageTable)
 737     {
 738         SecurePackage *package;
 739         size_t bytesNeeded;
 740
 741         bytesNeeded = packageTable->numPackages * sizeof(SecPkgInfoW);
 742         LIST_FOR_EACH_ENTRY(package, &packageTable->table, SecurePackage, entry)
 743         {
 744             if (package->infoW.Name)
 745                 bytesNeeded += (lstrlenW(package->infoW.Name) + 1) * sizeof(WCHAR);
 746             if (package->infoW.Comment)
 747                 bytesNeeded += (lstrlenW(package->infoW.Comment) + 1) * sizeof(WCHAR);
 748         }
 749         if (bytesNeeded)
 750         {
 751             *ppPackageInfo = HeapAlloc(GetProcessHeap(), 0, bytesNeeded);
 752             if (*ppPackageInfo)
 753             {
 754                 ULONG i = 0;
 755                 PWSTR nextString;
 756
 757                 *pcPackages = packageTable->numPackages;
 758                 nextString = (PWSTR)((PBYTE)*ppPackageInfo +
 759                  packageTable->numPackages * sizeof(SecPkgInfoW));
 760                 LIST_FOR_EACH_ENTRY(package, &packageTable->table, SecurePackage, entry)
 761                 {
 762                     PSecPkgInfoW pkgInfo = *ppPackageInfo + i++;
 763
 764                     *pkgInfo = package->infoW;
 765                     if (package->infoW.Name)
 766                     {
 767                         TRACE("Name[%d] = %s\n", i - 1, debugstr_w(package->infoW.Name));
 768                         pkgInfo->Name = nextString;
 769                         lstrcpyW(nextString, package->infoW.Name);
 770                         nextString += lstrlenW(nextString) + 1;
 771                     }
 772                     else
 773                         pkgInfo->Name = NULL;
 774                     if (package->infoW.Comment)
 775                     {
 776                         TRACE("Comment[%d] = %s\n", i - 1, debugstr_w(package->infoW.Comment));
 777                         pkgInfo->Comment = nextString;
 778                         lstrcpyW(nextString, package->infoW.Comment);
 779                         nextString += lstrlenW(nextString) + 1;
 780                     }
 781                     else
 782                         pkgInfo->Comment = NULL;
 783                 }
 784             }
 785             else
 786                 ret = SEC_E_INSUFFICIENT_MEMORY;
 787         }
 788     }
 789     LeaveCriticalSection(&cs);
 790     TRACE("<-- 0x%08x\n", ret);
 791     return ret;
 792 }
 793
 794 /* Converts info (which is assumed to be an array of cPackages SecPkgInfoW
 795  * structures) into an array of SecPkgInfoA structures, which it returns.
 796  */
 797 static PSecPkgInfoA thunk_PSecPkgInfoWToA(ULONG cPackages,
 798  const SecPkgInfoW *info)
 799 {
 800     PSecPkgInfoA ret;
 801
 802     if (info)
 803     {
 804         size_t bytesNeeded = cPackages * sizeof(SecPkgInfoA);
 805         ULONG i;
 806
 807         for (i = 0; i < cPackages; i++)
 808         {
 809             if (info[i].Name)
 810                 bytesNeeded += WideCharToMultiByte(CP_ACP, 0, info[i].Name,
 811                  -1, NULL, 0, NULL, NULL);
 812             if (info[i].Comment)
 813                 bytesNeeded += WideCharToMultiByte(CP_ACP, 0, info[i].Comment,
 814                  -1, NULL, 0, NULL, NULL);
 815         }
 816         ret = HeapAlloc(GetProcessHeap(), 0, bytesNeeded);
 817         if (ret)
 818         {
 819             PSTR nextString;
 820
 821             nextString = (PSTR)((PBYTE)ret + cPackages * sizeof(SecPkgInfoA));
 822             for (i = 0; i < cPackages; i++)
 823             {
 824                 PSecPkgInfoA pkgInfo = ret + i;
 825                 int bytes;
 826
 827                 memcpy(pkgInfo, &info[i], sizeof(SecPkgInfoA));
 828                 if (info[i].Name)
 829                 {
 830                     pkgInfo->Name = nextString;
 831                     /* just repeat back to WideCharToMultiByte how many bytes
 832                      * it requires, since we asked it earlier
 833                      */
 834                     bytes = WideCharToMultiByte(CP_ACP, 0, info[i].Name, -1,
 835                      NULL, 0, NULL, NULL);
 836                     WideCharToMultiByte(CP_ACP, 0, info[i].Name, -1,
 837                      pkgInfo->Name, bytes, NULL, NULL);
 838                     nextString += lstrlenA(nextString) + 1;
 839                 }
 840                 else
 841                     pkgInfo->Name = NULL;
 842                 if (info[i].Comment)
 843                 {
 844                     pkgInfo->Comment = nextString;
 845                     /* just repeat back to WideCharToMultiByte how many bytes
 846                      * it requires, since we asked it earlier
 847                      */
 848                     bytes = WideCharToMultiByte(CP_ACP, 0, info[i].Comment, -1,
 849                      NULL, 0, NULL, NULL);
 850                     WideCharToMultiByte(CP_ACP, 0, info[i].Comment, -1,
 851                      pkgInfo->Comment, bytes, NULL, NULL);
 852                     nextString += lstrlenA(nextString) + 1;
 853                 }
 854                 else
 855                     pkgInfo->Comment = NULL;
 856             }
 857         }
 858     }
 859     else
 860         ret = NULL;
 861     return ret;
 862 }
 863
 864 /***********************************************************************
 865  *              EnumerateSecurityPackagesA (SECUR32.@)
 866  */
 867 SECURITY_STATUS WINAPI EnumerateSecurityPackagesA(PULONG pcPackages,
 868  PSecPkgInfoA *ppPackageInfo)
 869 {
 870     SECURITY_STATUS ret;
 871     PSecPkgInfoW info;
 872
 873     ret = EnumerateSecurityPackagesW(pcPackages, &info);
 874     if (ret == SEC_E_OK && *pcPackages && info)
 875     {
 876         *ppPackageInfo = thunk_PSecPkgInfoWToA(*pcPackages, info);
 877         if (*pcPackages && !*ppPackageInfo)
 878         {
 879             *pcPackages = 0;
 880             ret = SEC_E_INSUFFICIENT_MEMORY;
 881         }
 882         FreeContextBuffer(info);
 883     }
 884     return ret;
 885 }
 886
 887 /***********************************************************************
 888  *              GetComputerObjectNameA (SECUR32.@)
 889  *
 890  * Get the local computer's name using the format specified.
 891  *
 892  * PARAMS
 893  *  NameFormat   [I] The format for the name.
 894  *  lpNameBuffer [O] Pointer to buffer to receive the name.
 895  *  nSize        [I/O] Size in characters of buffer.
 896  *
 897  * RETURNS
 898  *  TRUE  If the name was written to lpNameBuffer.
 899  *  FALSE If the name couldn't be written.
 900  *
 901  * NOTES
 902  *  If lpNameBuffer is NULL, then the size of the buffer needed to hold the
 903  *  name will be returned in *nSize.
 904  *
 905  *  nSize returns the number of characters written when lpNameBuffer is not
 906  *  NULL or the size of the buffer needed to hold the name when the buffer
 907  *  is too short or lpNameBuffer is NULL.
 908  *
 909  *  It the buffer is too short, ERROR_INSUFFICIENT_BUFFER error will be set.
 910  */
 911 BOOLEAN WINAPI GetComputerObjectNameA(
 912   EXTENDED_NAME_FORMAT NameFormat, LPSTR lpNameBuffer, PULONG nSize)
 913 {
 914     BOOLEAN rc;
 915     LPWSTR bufferW = NULL;
 916     ULONG sizeW = *nSize;
 917     TRACE("(%d %p %p)\n", NameFormat, lpNameBuffer, nSize);
 918     if (lpNameBuffer) {
 919         bufferW = HeapAlloc(GetProcessHeap(), 0, sizeW * sizeof(WCHAR));
 920         if (bufferW == NULL) {
 921             SetLastError(ERROR_NOT_ENOUGH_MEMORY);
 922             return FALSE;
 923         }
 924     }
 925     rc = GetComputerObjectNameW(NameFormat, bufferW, &sizeW);
 926     if (rc && bufferW) {
 927         ULONG len = WideCharToMultiByte(CP_ACP, 0, bufferW, -1, NULL, 0, NULL, NULL);
 928         WideCharToMultiByte(CP_ACP, 0, bufferW, -1, lpNameBuffer, *nSize, NULL, NULL);
 929         *nSize = len;
 930     }
 931     else
 932         *nSize = sizeW;
 933     HeapFree(GetProcessHeap(), 0, bufferW);
 934     return rc;
 935 }
 936
 937 /***********************************************************************
 938  *              GetComputerObjectNameW (SECUR32.@)
 939  */
 940 BOOLEAN WINAPI GetComputerObjectNameW(
 941   EXTENDED_NAME_FORMAT NameFormat, LPWSTR lpNameBuffer, PULONG nSize)
 942 {
 943     LSA_HANDLE policyHandle;
 944     LSA_OBJECT_ATTRIBUTES objectAttributes;
 945     PPOLICY_DNS_DOMAIN_INFO domainInfo;
 946     NTSTATUS ntStatus;
 947     BOOLEAN status;
 948     TRACE("(%d %p %p)\n", NameFormat, lpNameBuffer, nSize);
 949
 950     if (NameFormat == NameUnknown)
 951     {
 952         SetLastError(ERROR_INVALID_PARAMETER);
 953         return FALSE;
 954     }
 955
 956     ZeroMemory(&objectAttributes, sizeof(objectAttributes));
 957     objectAttributes.Length = sizeof(objectAttributes);
 958
 959     ntStatus = LsaOpenPolicy(NULL, &objectAttributes,
 960                              POLICY_VIEW_LOCAL_INFORMATION,
 961                              &policyHandle);
 962     if (ntStatus != STATUS_SUCCESS)
 963     {
 964         SetLastError(LsaNtStatusToWinError(ntStatus));
 965         WARN("LsaOpenPolicy failed with NT status %u\n", GetLastError());
 966         return FALSE;
 967     }
 968
 969     ntStatus = LsaQueryInformationPolicy(policyHandle,
 970                                          PolicyDnsDomainInformation,
 971                                          (PVOID *)&domainInfo);
 972     if (ntStatus != STATUS_SUCCESS)
 973     {
 974         SetLastError(LsaNtStatusToWinError(ntStatus));
 975         WARN("LsaQueryInformationPolicy failed with NT status %u\n",
 976              GetLastError());
 977         LsaClose(policyHandle);
 978         return FALSE;
 979     }
 980
 981     if (domainInfo->Sid)
 982     {
 983         switch (NameFormat)
 984         {
 985         case NameSamCompatible:
 986             {
 987                 WCHAR name[MAX_COMPUTERNAME_LENGTH + 1];
 988                 DWORD size = sizeof(name)/sizeof(name[0]);
 989                 if (GetComputerNameW(name, &size))
 990                 {
 991                     DWORD len = domainInfo->Name.Length + size + 3;
 992                     if (lpNameBuffer)
 993                     {
 994                         if (*nSize < len)
 995                         {
 996                             *nSize = len;
 997                             SetLastError(ERROR_INSUFFICIENT_BUFFER);
 998                             status = FALSE;
 999                         }
1000                         else
1001                         {
1002                             WCHAR bs[] = { '\\', 0 };
1003                             WCHAR ds[] = { '$', 0 };
1004                             lstrcpyW(lpNameBuffer, domainInfo->Name.Buffer);
1005                             lstrcatW(lpNameBuffer, bs);
1006                             lstrcatW(lpNameBuffer, name);
1007                             lstrcatW(lpNameBuffer, ds);
1008                             status = TRUE;
1009                         }
1010                     }
1011                     else        /* just requesting length required */
1012                     {
1013                         *nSize = len;
1014                         status = TRUE;
1015                     }
1016                 }
1017                 else
1018                 {
1019                     SetLastError(ERROR_INTERNAL_ERROR);
1020                     status = FALSE;
1021                 }
1022             }
1023             break;
1024         case NameFullyQualifiedDN:
1025         case NameDisplay:
1026         case NameUniqueId:
1027         case NameCanonical:
1028         case NameUserPrincipal:
1029         case NameCanonicalEx:
1030         case NameServicePrincipal:
1031         case NameDnsDomain:
1032             FIXME("NameFormat %d not implemented\n", NameFormat);
1033             SetLastError(ERROR_CANT_ACCESS_DOMAIN_INFO);
1034             status = FALSE;
1035             break;
1036         default:
1037             SetLastError(ERROR_INVALID_PARAMETER);
1038             status = FALSE;
1039         }
1040     }
1041     else
1042     {
1043         SetLastError(ERROR_CANT_ACCESS_DOMAIN_INFO);
1044         status = FALSE;
1045     }
1046
1047     LsaFreeMemory(domainInfo);
1048     LsaClose(policyHandle);
1049
1050     return status;
1051 }
1052
1053 /***********************************************************************
1054  *              GetUserNameExA (SECUR32.@)
1055  */
1056 BOOLEAN WINAPI GetUserNameExA(
1057   EXTENDED_NAME_FORMAT NameFormat, LPSTR lpNameBuffer, PULONG nSize)
1058 {
1059     BOOLEAN rc;
1060     LPWSTR bufferW = NULL;
1061     ULONG sizeW = *nSize;
1062     TRACE("(%d %p %p)\n", NameFormat, lpNameBuffer, nSize);
1063     if (lpNameBuffer) {
1064         bufferW = HeapAlloc(GetProcessHeap(), 0, sizeW * sizeof(WCHAR));
1065         if (bufferW == NULL) {
1066             SetLastError(ERROR_NOT_ENOUGH_MEMORY);
1067             return FALSE;
1068         }
1069     }
1070     rc = GetUserNameExW(NameFormat, bufferW, &sizeW);
1071     if (rc) {
1072         ULONG len = WideCharToMultiByte(CP_ACP, 0, bufferW, -1, NULL, 0, NULL, NULL);
1073         if (len <= *nSize)
1074         {
1075             WideCharToMultiByte(CP_ACP, 0, bufferW, -1, lpNameBuffer, *nSize, NULL, NULL);
1076             *nSize = len - 1;
1077         }
1078         else
1079         {
1080             *nSize = len;
1081             rc = FALSE;
1082             SetLastError(ERROR_MORE_DATA);
1083         }
1084     }
1085     else
1086         *nSize = sizeW;
1087     HeapFree(GetProcessHeap(), 0, bufferW);
1088     return rc;
1089 }
1090
1091 BOOLEAN WINAPI GetUserNameExW(
1092   EXTENDED_NAME_FORMAT NameFormat, LPWSTR lpNameBuffer, PULONG nSize)
1093 {
1094     BOOLEAN status;
1095     WCHAR samname[UNLEN + 1 + MAX_COMPUTERNAME_LENGTH + 1];
1096     LPWSTR out;
1097     DWORD len;
1098     TRACE("(%d %p %p)\n", NameFormat, lpNameBuffer, nSize);
1099
1100     switch (NameFormat)
1101     {
1102     case NameSamCompatible:
1103         {
1104             /* This assumes the current user is always a local account */
1105             len = MAX_COMPUTERNAME_LENGTH + 1;
1106             if (GetComputerNameW(samname, &len))
1107             {
1108                 out = samname + lstrlenW(samname);
1109                 *out++ = '\\';
1110                 len = UNLEN + 1;
1111                 if (GetUserNameW(out, &len))
1112                 {
1113                     status = (lstrlenW(samname) < *nSize);
1114                     if (status)
1115                     {
1116                         lstrcpyW(lpNameBuffer, samname);
1117                         *nSize = lstrlenW(samname);
1118                     }
1119                     else
1120                     {
1121                         SetLastError(ERROR_MORE_DATA);
1122                         *nSize = lstrlenW(samname) + 1;
1123                     }
1124                 }
1125                 else
1126                     status = FALSE;
1127             }
1128             else
1129                 status = FALSE;
1130         }
1131         break;
1132     case NameUnknown:
1133     case NameFullyQualifiedDN:
1134     case NameDisplay:
1135     case NameUniqueId:
1136     case NameCanonical:
1137     case NameUserPrincipal:
1138     case NameCanonicalEx:
1139     case NameServicePrincipal:
1140     case NameDnsDomain:
1141         SetLastError(ERROR_NONE_MAPPED);
1142         status = FALSE;
1143         break;
1144     default:
1145         SetLastError(ERROR_INVALID_PARAMETER);
1146         status = FALSE;
1147     }
1148
1149     return status;
1150 }
1151
1152 BOOLEAN WINAPI TranslateNameA(
1153   LPCSTR lpAccountName, EXTENDED_NAME_FORMAT AccountNameFormat,
1154   EXTENDED_NAME_FORMAT DesiredNameFormat, LPSTR lpTranslatedName,
1155   PULONG nSize)
1156 {
1157     FIXME("%p %d %d %p %p\n", lpAccountName, AccountNameFormat,
1158           DesiredNameFormat, lpTranslatedName, nSize);
1159     return FALSE;
1160 }
1161
1162 BOOLEAN WINAPI TranslateNameW(
1163   LPCWSTR lpAccountName, EXTENDED_NAME_FORMAT AccountNameFormat,
1164   EXTENDED_NAME_FORMAT DesiredNameFormat, LPWSTR lpTranslatedName,
1165   PULONG nSize)
1166 {
1167     FIXME("%p %d %d %p %p\n", lpAccountName, AccountNameFormat,
1168           DesiredNameFormat, lpTranslatedName, nSize);
1169     return FALSE;
1170 }
1171
1172 /***********************************************************************
1173  *              DllMain (SECUR32.0)
1174  */
1175 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
1176 {
1177     if (fdwReason == DLL_PROCESS_ATTACH)
1178     {
1179         DisableThreadLibraryCalls(hinstDLL);
1180         SECUR32_initializeProviders();
1181     }
1182     else if (fdwReason == DLL_PROCESS_DETACH)
1183     {
1184         SECUR32_freeProviders();
1185     }
1186
1187     return TRUE;
1188 }