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     SECUR32_deinitSchannelSP();
 677
 678     if (packageTable)
 679     {
 680         LIST_FOR_EACH_ENTRY(package, &packageTable->table, SecurePackage, entry)
 681         {
 682             HeapFree(GetProcessHeap(), 0, package->infoW.Name);
 683             HeapFree(GetProcessHeap(), 0, package->infoW.Comment);
 684         }
 685
 686         HeapFree(GetProcessHeap(), 0, packageTable);
 687         packageTable = NULL;
 688     }
 689
 690     if (providerTable)
 691     {
 692         LIST_FOR_EACH_ENTRY(provider, &providerTable->table, SecureProvider, entry)
 693         {
 694             HeapFree(GetProcessHeap(), 0, provider->moduleName);
 695             if (provider->lib)
 696                 FreeLibrary(provider->lib);
 697         }
 698
 699         HeapFree(GetProcessHeap(), 0, providerTable);
 700         providerTable = NULL;
 701     }
 702
 703     LeaveCriticalSection(&cs);
 704     cs.DebugInfo->Spare[0] = 0;
 705     DeleteCriticalSection(&cs);
 706 }
 707
 708 /***********************************************************************
 709  *              FreeContextBuffer (SECUR32.@)
 710  *
 711  * Doh--if pv was allocated by a crypto package, this may not be correct.
 712  * The sample ssp seems to use LocalAlloc/LocalFee, but there doesn't seem to
 713  * be any guarantee, nor is there an alloc function in secur32.
 714  */
 715 SECURITY_STATUS WINAPI FreeContextBuffer(PVOID pv)
 716 {
 717     HeapFree(GetProcessHeap(), 0, pv);
 718
 719     return SEC_E_OK;
 720 }
 721
 722 /***********************************************************************
 723  *              EnumerateSecurityPackagesW (SECUR32.@)
 724  */
 725 SECURITY_STATUS WINAPI EnumerateSecurityPackagesW(PULONG pcPackages,
 726  PSecPkgInfoW *ppPackageInfo)
 727 {
 728     SECURITY_STATUS ret = SEC_E_OK;
 729
 730     TRACE("(%p, %p)\n", pcPackages, ppPackageInfo);
 731
 732     /* windows just crashes if pcPackages or ppPackageInfo is NULL, so will I */
 733     *pcPackages = 0;
 734     EnterCriticalSection(&cs);
 735     if (packageTable)
 736     {
 737         SecurePackage *package;
 738         size_t bytesNeeded;
 739
 740         bytesNeeded = packageTable->numPackages * sizeof(SecPkgInfoW);
 741         LIST_FOR_EACH_ENTRY(package, &packageTable->table, SecurePackage, entry)
 742         {
 743             if (package->infoW.Name)
 744                 bytesNeeded += (lstrlenW(package->infoW.Name) + 1) * sizeof(WCHAR);
 745             if (package->infoW.Comment)
 746                 bytesNeeded += (lstrlenW(package->infoW.Comment) + 1) * sizeof(WCHAR);
 747         }
 748         if (bytesNeeded)
 749         {
 750             *ppPackageInfo = HeapAlloc(GetProcessHeap(), 0, bytesNeeded);
 751             if (*ppPackageInfo)
 752             {
 753                 ULONG i = 0;
 754                 PWSTR nextString;
 755
 756                 *pcPackages = packageTable->numPackages;
 757                 nextString = (PWSTR)((PBYTE)*ppPackageInfo +
 758                  packageTable->numPackages * sizeof(SecPkgInfoW));
 759                 LIST_FOR_EACH_ENTRY(package, &packageTable->table, SecurePackage, entry)
 760                 {
 761                     PSecPkgInfoW pkgInfo = *ppPackageInfo + i++;
 762
 763                     *pkgInfo = package->infoW;
 764                     if (package->infoW.Name)
 765                     {
 766                         TRACE("Name[%d] = %s\n", i - 1, debugstr_w(package->infoW.Name));
 767                         pkgInfo->Name = nextString;
 768                         lstrcpyW(nextString, package->infoW.Name);
 769                         nextString += lstrlenW(nextString) + 1;
 770                     }
 771                     else
 772                         pkgInfo->Name = NULL;
 773                     if (package->infoW.Comment)
 774                     {
 775                         TRACE("Comment[%d] = %s\n", i - 1, debugstr_w(package->infoW.Comment));
 776                         pkgInfo->Comment = nextString;
 777                         lstrcpyW(nextString, package->infoW.Comment);
 778                         nextString += lstrlenW(nextString) + 1;
 779                     }
 780                     else
 781                         pkgInfo->Comment = NULL;
 782                 }
 783             }
 784             else
 785                 ret = SEC_E_INSUFFICIENT_MEMORY;
 786         }
 787     }
 788     LeaveCriticalSection(&cs);
 789     TRACE("<-- 0x%08x\n", ret);
 790     return ret;
 791 }
 792
 793 /* Converts info (which is assumed to be an array of cPackages SecPkgInfoW
 794  * structures) into an array of SecPkgInfoA structures, which it returns.
 795  */
 796 static PSecPkgInfoA thunk_PSecPkgInfoWToA(ULONG cPackages,
 797  const SecPkgInfoW *info)
 798 {
 799     PSecPkgInfoA ret;
 800
 801     if (info)
 802     {
 803         size_t bytesNeeded = cPackages * sizeof(SecPkgInfoA);
 804         ULONG i;
 805
 806         for (i = 0; i < cPackages; i++)
 807         {
 808             if (info[i].Name)
 809                 bytesNeeded += WideCharToMultiByte(CP_ACP, 0, info[i].Name,
 810                  -1, NULL, 0, NULL, NULL);
 811             if (info[i].Comment)
 812                 bytesNeeded += WideCharToMultiByte(CP_ACP, 0, info[i].Comment,
 813                  -1, NULL, 0, NULL, NULL);
 814         }
 815         ret = HeapAlloc(GetProcessHeap(), 0, bytesNeeded);
 816         if (ret)
 817         {
 818             PSTR nextString;
 819
 820             nextString = (PSTR)((PBYTE)ret + cPackages * sizeof(SecPkgInfoA));
 821             for (i = 0; i < cPackages; i++)
 822             {
 823                 PSecPkgInfoA pkgInfo = ret + i;
 824                 int bytes;
 825
 826                 memcpy(pkgInfo, &info[i], sizeof(SecPkgInfoA));
 827                 if (info[i].Name)
 828                 {
 829                     pkgInfo->Name = nextString;
 830                     /* just repeat back to WideCharToMultiByte how many bytes
 831                      * it requires, since we asked it earlier
 832                      */
 833                     bytes = WideCharToMultiByte(CP_ACP, 0, info[i].Name, -1,
 834                      NULL, 0, NULL, NULL);
 835                     WideCharToMultiByte(CP_ACP, 0, info[i].Name, -1,
 836                      pkgInfo->Name, bytes, NULL, NULL);
 837                     nextString += lstrlenA(nextString) + 1;
 838                 }
 839                 else
 840                     pkgInfo->Name = NULL;
 841                 if (info[i].Comment)
 842                 {
 843                     pkgInfo->Comment = nextString;
 844                     /* just repeat back to WideCharToMultiByte how many bytes
 845                      * it requires, since we asked it earlier
 846                      */
 847                     bytes = WideCharToMultiByte(CP_ACP, 0, info[i].Comment, -1,
 848                      NULL, 0, NULL, NULL);
 849                     WideCharToMultiByte(CP_ACP, 0, info[i].Comment, -1,
 850                      pkgInfo->Comment, bytes, NULL, NULL);
 851                     nextString += lstrlenA(nextString) + 1;
 852                 }
 853                 else
 854                     pkgInfo->Comment = NULL;
 855             }
 856         }
 857     }
 858     else
 859         ret = NULL;
 860     return ret;
 861 }
 862
 863 /***********************************************************************
 864  *              EnumerateSecurityPackagesA (SECUR32.@)
 865  */
 866 SECURITY_STATUS WINAPI EnumerateSecurityPackagesA(PULONG pcPackages,
 867  PSecPkgInfoA *ppPackageInfo)
 868 {
 869     SECURITY_STATUS ret;
 870     PSecPkgInfoW info;
 871
 872     ret = EnumerateSecurityPackagesW(pcPackages, &info);
 873     if (ret == SEC_E_OK && *pcPackages && info)
 874     {
 875         *ppPackageInfo = thunk_PSecPkgInfoWToA(*pcPackages, info);
 876         if (*pcPackages && !*ppPackageInfo)
 877         {
 878             *pcPackages = 0;
 879             ret = SEC_E_INSUFFICIENT_MEMORY;
 880         }
 881         FreeContextBuffer(info);
 882     }
 883     return ret;
 884 }
 885
 886 /***********************************************************************
 887  *              GetComputerObjectNameA (SECUR32.@)
 888  *
 889  * Get the local computer's name using the format specified.
 890  *
 891  * PARAMS
 892  *  NameFormat   [I] The format for the name.
 893  *  lpNameBuffer [O] Pointer to buffer to receive the name.
 894  *  nSize        [I/O] Size in characters of buffer.
 895  *
 896  * RETURNS
 897  *  TRUE  If the name was written to lpNameBuffer.
 898  *  FALSE If the name couldn't be written.
 899  *
 900  * NOTES
 901  *  If lpNameBuffer is NULL, then the size of the buffer needed to hold the
 902  *  name will be returned in *nSize.
 903  *
 904  *  nSize returns the number of characters written when lpNameBuffer is not
 905  *  NULL or the size of the buffer needed to hold the name when the buffer
 906  *  is too short or lpNameBuffer is NULL.
 907  *
 908  *  It the buffer is too short, ERROR_INSUFFICIENT_BUFFER error will be set.
 909  */
 910 BOOLEAN WINAPI GetComputerObjectNameA(
 911   EXTENDED_NAME_FORMAT NameFormat, LPSTR lpNameBuffer, PULONG nSize)
 912 {
 913     BOOLEAN rc;
 914     LPWSTR bufferW = NULL;
 915     ULONG sizeW = *nSize;
 916     TRACE("(%d %p %p)\n", NameFormat, lpNameBuffer, nSize);
 917     if (lpNameBuffer) {
 918         bufferW = HeapAlloc(GetProcessHeap(), 0, sizeW * sizeof(WCHAR));
 919         if (bufferW == NULL) {
 920             SetLastError(ERROR_NOT_ENOUGH_MEMORY);
 921             return FALSE;
 922         }
 923     }
 924     rc = GetComputerObjectNameW(NameFormat, bufferW, &sizeW);
 925     if (rc && bufferW) {
 926         ULONG len = WideCharToMultiByte(CP_ACP, 0, bufferW, -1, NULL, 0, NULL, NULL);
 927         WideCharToMultiByte(CP_ACP, 0, bufferW, -1, lpNameBuffer, *nSize, NULL, NULL);
 928         *nSize = len;
 929     }
 930     else
 931         *nSize = sizeW;
 932     HeapFree(GetProcessHeap(), 0, bufferW);
 933     return rc;
 934 }
 935
 936 /***********************************************************************
 937  *              GetComputerObjectNameW (SECUR32.@)
 938  */
 939 BOOLEAN WINAPI GetComputerObjectNameW(
 940   EXTENDED_NAME_FORMAT NameFormat, LPWSTR lpNameBuffer, PULONG nSize)
 941 {
 942     LSA_HANDLE policyHandle;
 943     LSA_OBJECT_ATTRIBUTES objectAttributes;
 944     PPOLICY_DNS_DOMAIN_INFO domainInfo;
 945     NTSTATUS ntStatus;
 946     BOOLEAN status;
 947     TRACE("(%d %p %p)\n", NameFormat, lpNameBuffer, nSize);
 948
 949     if (NameFormat == NameUnknown)
 950     {
 951         SetLastError(ERROR_INVALID_PARAMETER);
 952         return FALSE;
 953     }
 954
 955     ZeroMemory(&objectAttributes, sizeof(objectAttributes));
 956     objectAttributes.Length = sizeof(objectAttributes);
 957
 958     ntStatus = LsaOpenPolicy(NULL, &objectAttributes,
 959                              POLICY_VIEW_LOCAL_INFORMATION,
 960                              &policyHandle);
 961     if (ntStatus != STATUS_SUCCESS)
 962     {
 963         SetLastError(LsaNtStatusToWinError(ntStatus));
 964         WARN("LsaOpenPolicy failed with NT status %u\n", GetLastError());
 965         return FALSE;
 966     }
 967
 968     ntStatus = LsaQueryInformationPolicy(policyHandle,
 969                                          PolicyDnsDomainInformation,
 970                                          (PVOID *)&domainInfo);
 971     if (ntStatus != STATUS_SUCCESS)
 972     {
 973         SetLastError(LsaNtStatusToWinError(ntStatus));
 974         WARN("LsaQueryInformationPolicy failed with NT status %u\n",
 975              GetLastError());
 976         LsaClose(policyHandle);
 977         return FALSE;
 978     }
 979
 980     if (domainInfo->Sid)
 981     {
 982         switch (NameFormat)
 983         {
 984         case NameSamCompatible:
 985             {
 986                 WCHAR name[MAX_COMPUTERNAME_LENGTH + 1];
 987                 DWORD size = sizeof(name)/sizeof(name[0]);
 988                 if (GetComputerNameW(name, &size))
 989                 {
 990                     int len = domainInfo->Name.Length + size + 3;
 991                     if (lpNameBuffer)
 992                     {
 993                         if (*nSize < len)
 994                         {
 995                             *nSize = len;
 996                             SetLastError(ERROR_INSUFFICIENT_BUFFER);
 997                             status = FALSE;
 998                         }
 999                         else
1000                         {
1001                             WCHAR bs[] = { '\\', 0 };
1002                             WCHAR ds[] = { '$', 0 };
1003                             lstrcpyW(lpNameBuffer, domainInfo->Name.Buffer);
1004                             lstrcatW(lpNameBuffer, bs);
1005                             lstrcatW(lpNameBuffer, name);
1006                             lstrcatW(lpNameBuffer, ds);
1007                             status = TRUE;
1008                         }
1009                     }
1010                     else        /* just requesting length required */
1011                     {
1012                         *nSize = len;
1013                         status = TRUE;
1014                     }
1015                 }
1016                 else
1017                 {
1018                     SetLastError(ERROR_INTERNAL_ERROR);
1019                     status = FALSE;
1020                 }
1021             }
1022             break;
1023         case NameFullyQualifiedDN:
1024         case NameDisplay:
1025         case NameUniqueId:
1026         case NameCanonical:
1027         case NameUserPrincipal:
1028         case NameCanonicalEx:
1029         case NameServicePrincipal:
1030         case NameDnsDomain:
1031             FIXME("NameFormat %d not implemented\n", NameFormat);
1032             SetLastError(ERROR_CANT_ACCESS_DOMAIN_INFO);
1033             status = FALSE;
1034             break;
1035         default:
1036             SetLastError(ERROR_INVALID_PARAMETER);
1037             status = FALSE;
1038         }
1039     }
1040     else
1041     {
1042         SetLastError(ERROR_CANT_ACCESS_DOMAIN_INFO);
1043         status = FALSE;
1044     }
1045
1046     LsaFreeMemory(domainInfo);
1047     LsaClose(policyHandle);
1048
1049     return status;
1050 }
1051
1052 /***********************************************************************
1053  *              GetUserNameExA (SECUR32.@)
1054  */
1055 BOOLEAN WINAPI GetUserNameExA(
1056   EXTENDED_NAME_FORMAT NameFormat, LPSTR lpNameBuffer, PULONG nSize)
1057 {
1058     FIXME("%d %p %p\n", NameFormat, lpNameBuffer, nSize);
1059     return FALSE;
1060 }
1061
1062 BOOLEAN WINAPI GetUserNameExW(
1063   EXTENDED_NAME_FORMAT NameFormat, LPWSTR lpNameBuffer, PULONG nSize)
1064 {
1065     FIXME("%d %p %p\n", NameFormat, lpNameBuffer, nSize);
1066     return FALSE;
1067 }
1068
1069 BOOLEAN WINAPI TranslateNameA(
1070   LPCSTR lpAccountName, EXTENDED_NAME_FORMAT AccountNameFormat,
1071   EXTENDED_NAME_FORMAT DesiredNameFormat, LPSTR lpTranslatedName,
1072   PULONG nSize)
1073 {
1074     FIXME("%p %d %d %p %p\n", lpAccountName, AccountNameFormat,
1075           DesiredNameFormat, lpTranslatedName, nSize);
1076     return FALSE;
1077 }
1078
1079 BOOLEAN WINAPI TranslateNameW(
1080   LPCWSTR lpAccountName, EXTENDED_NAME_FORMAT AccountNameFormat,
1081   EXTENDED_NAME_FORMAT DesiredNameFormat, LPWSTR lpTranslatedName,
1082   PULONG nSize)
1083 {
1084     FIXME("%p %d %d %p %p\n", lpAccountName, AccountNameFormat,
1085           DesiredNameFormat, lpTranslatedName, nSize);
1086     return FALSE;
1087 }
1088
1089 /***********************************************************************
1090  *              DllMain (SECUR32.0)
1091  */
1092 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
1093 {
1094     if (fdwReason == DLL_PROCESS_ATTACH)
1095     {
1096         DisableThreadLibraryCalls(hinstDLL);
1097         SECUR32_initializeProviders();
1098     }
1099     else if (fdwReason == DLL_PROCESS_DETACH)
1100     {
1101         SECUR32_freeProviders();
1102     }
1103
1104     return TRUE;
1105 }