git.oblomov.eu Git - wine/blob - dlls/secur32/ntlm.c

   1 /*
   2  * Copyright 2005, 2006 Kai Blin
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  *
  18  * This file implements the NTLM security provider.
  19  */
  20
  21 #include <assert.h>
  22 #include <stdarg.h>
  23 #include <stdio.h>
  24 #include "windef.h"
  25 #include "winbase.h"
  26 #include "winnls.h"
  27 #include "rpc.h"
  28 #include "sspi.h"
  29 #include "lm.h"
  30 #include "secur32_priv.h"
  31 #include "hmac_md5.h"
  32 #include "wine/debug.h"
  33
  34 WINE_DEFAULT_DEBUG_CHANNEL(secur32);
  35
  36 #define NTLM_MAX_BUF 1904
  37 #define MIN_NTLM_AUTH_MAJOR_VERSION 3
  38 #define MIN_NTLM_AUTH_MINOR_VERSION 0
  39 #define MIN_NTLM_AUTH_MICRO_VERSION 25
  40
  41 static CHAR ntlm_auth[] = "ntlm_auth";
  42
  43 /***********************************************************************
  44  *              QueryCredentialsAttributesA
  45  */
  46 static SECURITY_STATUS SEC_ENTRY ntlm_QueryCredentialsAttributesA(
  47         PCredHandle phCredential, ULONG ulAttribute, PVOID pBuffer)
  48 {
  49     SECURITY_STATUS ret;
  50
  51     TRACE("(%p, %d, %p)\n", phCredential, ulAttribute, pBuffer);
  52
  53     if(ulAttribute == SECPKG_ATTR_NAMES)
  54     {
  55         FIXME("SECPKG_CRED_ATTR_NAMES: stub\n");
  56         ret = SEC_E_UNSUPPORTED_FUNCTION;
  57     }
  58     else
  59         ret = SEC_E_UNSUPPORTED_FUNCTION;
  60
  61     return ret;
  62 }
  63
  64 /***********************************************************************
  65  *              QueryCredentialsAttributesW
  66  */
  67 static SECURITY_STATUS SEC_ENTRY ntlm_QueryCredentialsAttributesW(
  68         PCredHandle phCredential, ULONG ulAttribute, PVOID pBuffer)
  69 {
  70     SECURITY_STATUS ret;
  71
  72     TRACE("(%p, %d, %p)\n", phCredential, ulAttribute, pBuffer);
  73
  74     if(ulAttribute == SECPKG_ATTR_NAMES)
  75     {
  76         FIXME("SECPKG_CRED_ATTR_NAMES: stub\n");
  77         ret = SEC_E_UNSUPPORTED_FUNCTION;
  78     }
  79     else
  80         ret = SEC_E_UNSUPPORTED_FUNCTION;
  81
  82     return ret;
  83 }
  84
  85 /***********************************************************************
  86  *              AcquireCredentialsHandleW
  87  */
  88 static SECURITY_STATUS SEC_ENTRY ntlm_AcquireCredentialsHandleW(
  89  SEC_WCHAR *pszPrincipal, SEC_WCHAR *pszPackage, ULONG fCredentialUse,
  90  PLUID pLogonID, PVOID pAuthData, SEC_GET_KEY_FN pGetKeyFn,
  91  PVOID pGetKeyArgument, PCredHandle phCredential, PTimeStamp ptsExpiry)
  92 {
  93     SECURITY_STATUS ret;
  94     PNegoHelper helper = NULL;
  95     static CHAR server_helper_protocol[] = "--helper-protocol=squid-2.5-ntlmssp",
  96                 credentials_argv[] = "--use-cached-creds";
  97
  98     SEC_CHAR *client_user_arg = NULL;
  99     SEC_CHAR *client_domain_arg = NULL;
 100     SEC_WCHAR *username = NULL, *domain = NULL;
 101
 102     SEC_CHAR *client_argv[6];
 103     SEC_CHAR *server_argv[] = { ntlm_auth,
 104         server_helper_protocol,
 105         NULL };
 106
 107     TRACE("(%s, %s, 0x%08x, %p, %p, %p, %p, %p, %p)\n",
 108      debugstr_w(pszPrincipal), debugstr_w(pszPackage), fCredentialUse,
 109      pLogonID, pAuthData, pGetKeyFn, pGetKeyArgument, phCredential, ptsExpiry);
 110
 111
 112     switch(fCredentialUse)
 113     {
 114         case SECPKG_CRED_INBOUND:
 115             if( (ret = fork_helper(&helper, ntlm_auth, server_argv)) !=
 116                     SEC_E_OK)
 117             {
 118                 phCredential = NULL;
 119                 break;
 120             }
 121             else
 122             {
 123                 helper->mode = NTLM_SERVER;
 124                 phCredential->dwUpper = fCredentialUse;
 125                 phCredential->dwLower = (ULONG_PTR)helper;
 126             }
 127             ret = SEC_E_OK;
 128             break;
 129         case SECPKG_CRED_OUTBOUND:
 130             {
 131                 static const char username_arg[] = "--username=";
 132                 static const char domain_arg[] = "--domain=";
 133                 static char helper_protocol[] = "--helper-protocol=ntlmssp-client-1";
 134                 int unixcp_size;
 135
 136                 if(pAuthData == NULL)
 137                 {
 138                     LPWKSTA_USER_INFO_1 ui = NULL;
 139                     NET_API_STATUS status;
 140
 141                     status = NetWkstaUserGetInfo(NULL, 1, (LPBYTE *)&ui);
 142                     if (status != NERR_Success || ui == NULL)
 143                     {
 144                         ret = SEC_E_NO_CREDENTIALS;
 145                         phCredential = NULL;
 146                         break;
 147                     }
 148
 149                     username = HeapAlloc(GetProcessHeap(), 0,
 150                             (lstrlenW(ui->wkui1_username)+1) *
 151                             sizeof(SEC_WCHAR));
 152                     lstrcpyW(username, ui->wkui1_username);
 153
 154                     /* same for the domain */
 155                     domain = HeapAlloc(GetProcessHeap(), 0,
 156                             (lstrlenW(ui->wkui1_logon_domain)+1) *
 157                             sizeof(SEC_WCHAR));
 158                     lstrcpyW(domain, ui->wkui1_logon_domain);
 159                     NetApiBufferFree(ui);
 160                 }
 161                 else
 162                 {
 163                     PSEC_WINNT_AUTH_IDENTITY_W auth_data =
 164                         (PSEC_WINNT_AUTH_IDENTITY_W)pAuthData;
 165
 166                     if (!auth_data->UserLength || !auth_data->DomainLength)
 167                     {
 168                         ret = SEC_E_NO_CREDENTIALS;
 169                         phCredential = NULL;
 170                         break;
 171                     }
 172                     /* Get username and domain from pAuthData */
 173                     username = HeapAlloc(GetProcessHeap(), 0,
 174                             (auth_data->UserLength + 1) * sizeof(SEC_WCHAR));
 175                     lstrcpyW(username, auth_data->User);
 176
 177                     domain = HeapAlloc(GetProcessHeap(), 0,
 178                             (auth_data->DomainLength + 1) * sizeof(SEC_WCHAR));
 179                     lstrcpyW(domain, auth_data->Domain);
 180                 }
 181                 TRACE("Username is %s\n", debugstr_w(username));
 182                 unixcp_size =  WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS,
 183                         username, -1, NULL, 0, NULL, NULL) + sizeof(username_arg);
 184                 client_user_arg = HeapAlloc(GetProcessHeap(), 0, unixcp_size);
 185                 lstrcpyA(client_user_arg, username_arg);
 186                 WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS, username, -1,
 187                         client_user_arg + sizeof(username_arg) - 1,
 188                         unixcp_size - sizeof(username_arg) + 1, NULL, NULL);
 189
 190                 TRACE("Domain name is %s\n", debugstr_w(domain));
 191                 unixcp_size = WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS,
 192                         domain, -1, NULL, 0,  NULL, NULL) + sizeof(domain_arg);
 193                 client_domain_arg = HeapAlloc(GetProcessHeap(), 0, unixcp_size);
 194                 lstrcpyA(client_domain_arg, domain_arg);
 195                 WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS, domain,
 196                         -1, client_domain_arg + sizeof(domain_arg) - 1,
 197                         unixcp_size - sizeof(domain) + 1, NULL, NULL);
 198
 199                 client_argv[0] = ntlm_auth;
 200                 client_argv[1] = helper_protocol;
 201                 client_argv[2] = client_user_arg;
 202                 client_argv[3] = client_domain_arg;
 203                 client_argv[4] = credentials_argv;
 204                 client_argv[5] = NULL;
 205
 206                 if((ret = fork_helper(&helper, ntlm_auth, client_argv)) !=
 207                         SEC_E_OK)
 208                 {
 209                     phCredential = NULL;
 210                     break;
 211                 }
 212                 else
 213                 {
 214                     helper->mode = NTLM_CLIENT;
 215
 216                     if(pAuthData != NULL)
 217                     {
 218                         PSEC_WINNT_AUTH_IDENTITY_W auth_data =
 219                            (PSEC_WINNT_AUTH_IDENTITY_W)pAuthData;
 220
 221                         if(auth_data->PasswordLength != 0)
 222                         {
 223                             helper->pwlen = WideCharToMultiByte(CP_UNIXCP,
 224                                 WC_NO_BEST_FIT_CHARS, auth_data->Password,
 225                                 auth_data->PasswordLength+1, NULL, 0, NULL,
 226                                 NULL) + 1;
 227
 228                             helper->password = HeapAlloc(GetProcessHeap(), 0,
 229                                     helper->pwlen);
 230
 231                             WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS,
 232                                 auth_data->Password, auth_data->PasswordLength+1,
 233                                 helper->password, helper->pwlen, NULL, NULL);
 234                         }
 235                     }
 236
 237                     phCredential->dwUpper = fCredentialUse;
 238                     phCredential->dwLower = (ULONG_PTR)helper;
 239                     TRACE("ACH phCredential->dwUpper: 0x%08lx, dwLower: 0x%08lx\n",
 240                             phCredential->dwUpper, phCredential->dwLower);
 241                 }
 242                 ret = SEC_E_OK;
 243                 break;
 244             }
 245         case SECPKG_CRED_BOTH:
 246             FIXME("AcquireCredentialsHandle: SECPKG_CRED_BOTH stub\n");
 247             ret = SEC_E_UNSUPPORTED_FUNCTION;
 248             phCredential = NULL;
 249             break;
 250         default:
 251             phCredential = NULL;
 252             ret = SEC_E_UNKNOWN_CREDENTIALS;
 253     }
 254
 255
 256     HeapFree(GetProcessHeap(), 0, client_user_arg);
 257     HeapFree(GetProcessHeap(), 0, client_domain_arg);
 258     HeapFree(GetProcessHeap(), 0, username);
 259     HeapFree(GetProcessHeap(), 0, domain);
 260
 261     return ret;
 262 }
 263
 264 /***********************************************************************
 265  *              AcquireCredentialsHandleA
 266  */
 267 static SECURITY_STATUS SEC_ENTRY ntlm_AcquireCredentialsHandleA(
 268  SEC_CHAR *pszPrincipal, SEC_CHAR *pszPackage, ULONG fCredentialUse,
 269  PLUID pLogonID, PVOID pAuthData, SEC_GET_KEY_FN pGetKeyFn,
 270  PVOID pGetKeyArgument, PCredHandle phCredential, PTimeStamp ptsExpiry)
 271 {
 272     SECURITY_STATUS ret;
 273     int user_sizeW, domain_sizeW, passwd_sizeW;
 274
 275     SEC_WCHAR *user = NULL, *domain = NULL, *passwd = NULL, *package = NULL;
 276
 277     PSEC_WINNT_AUTH_IDENTITY_W pAuthDataW = NULL;
 278     PSEC_WINNT_AUTH_IDENTITY_A identity  = NULL;
 279
 280     TRACE("(%s, %s, 0x%08x, %p, %p, %p, %p, %p, %p)\n",
 281      debugstr_a(pszPrincipal), debugstr_a(pszPackage), fCredentialUse,
 282      pLogonID, pAuthData, pGetKeyFn, pGetKeyArgument, phCredential, ptsExpiry);
 283
 284     if(pszPackage != NULL)
 285     {
 286         int package_sizeW = MultiByteToWideChar(CP_ACP, 0, pszPackage, -1,
 287                 NULL, 0);
 288
 289         package = HeapAlloc(GetProcessHeap(), 0, package_sizeW *
 290                 sizeof(SEC_WCHAR));
 291         MultiByteToWideChar(CP_ACP, 0, pszPackage, -1, package, package_sizeW);
 292     }
 293
 294
 295     if(pAuthData != NULL)
 296     {
 297         identity = (PSEC_WINNT_AUTH_IDENTITY_A)pAuthData;
 298
 299         if(identity->Flags == SEC_WINNT_AUTH_IDENTITY_ANSI)
 300         {
 301             pAuthDataW = HeapAlloc(GetProcessHeap(), 0,
 302                     sizeof(SEC_WINNT_AUTH_IDENTITY_W));
 303
 304             if(identity->UserLength != 0)
 305             {
 306                 user_sizeW = MultiByteToWideChar(CP_ACP, 0,
 307                     (LPCSTR)identity->User, identity->UserLength+1, NULL, 0);
 308                 user = HeapAlloc(GetProcessHeap(), 0, user_sizeW *
 309                         sizeof(SEC_WCHAR));
 310                 MultiByteToWideChar(CP_ACP, 0, (LPCSTR)identity->User,
 311                     identity->UserLength+1, user, user_sizeW);
 312             }
 313             else
 314             {
 315                 user_sizeW = 0;
 316             }
 317
 318             if(identity->DomainLength != 0)
 319             {
 320                 domain_sizeW = MultiByteToWideChar(CP_ACP, 0,
 321                     (LPCSTR)identity->Domain, identity->DomainLength+1, NULL, 0);
 322                 domain = HeapAlloc(GetProcessHeap(), 0, domain_sizeW
 323                     * sizeof(SEC_WCHAR));
 324                 MultiByteToWideChar(CP_ACP, 0, (LPCSTR)identity->Domain,
 325                     identity->DomainLength+1, domain, domain_sizeW);
 326             }
 327             else
 328             {
 329                 domain_sizeW = 0;
 330             }
 331
 332             if(identity->PasswordLength != 0)
 333             {
 334                 passwd_sizeW = MultiByteToWideChar(CP_ACP, 0,
 335                     (LPCSTR)identity->Password, identity->PasswordLength,
 336                     NULL, 0);
 337                 passwd = HeapAlloc(GetProcessHeap(), 0, passwd_sizeW
 338                     * sizeof(SEC_WCHAR));
 339                 MultiByteToWideChar(CP_ACP, 0, (LPCSTR)identity->Password,
 340                     identity->PasswordLength, passwd, passwd_sizeW);
 341             }
 342             else
 343             {
 344                 passwd_sizeW = 0;
 345             }
 346
 347             pAuthDataW->Flags = SEC_WINNT_AUTH_IDENTITY_UNICODE;
 348             pAuthDataW->User = user;
 349             pAuthDataW->UserLength = user_sizeW;
 350             pAuthDataW->Domain = domain;
 351             pAuthDataW->DomainLength = domain_sizeW;
 352             pAuthDataW->Password = passwd;
 353             pAuthDataW->PasswordLength = passwd_sizeW;
 354         }
 355         else
 356         {
 357             pAuthDataW = (PSEC_WINNT_AUTH_IDENTITY_W)identity;
 358         }
 359     }
 360
 361     ret = ntlm_AcquireCredentialsHandleW(NULL, package, fCredentialUse,
 362             pLogonID, pAuthDataW, pGetKeyFn, pGetKeyArgument, phCredential,
 363             ptsExpiry);
 364
 365     HeapFree(GetProcessHeap(), 0, package);
 366     HeapFree(GetProcessHeap(), 0, user);
 367     HeapFree(GetProcessHeap(), 0, domain);
 368     HeapFree(GetProcessHeap(), 0, passwd);
 369     if(pAuthDataW != (PSEC_WINNT_AUTH_IDENTITY_W)identity)
 370         HeapFree(GetProcessHeap(), 0, pAuthDataW);
 371
 372     return ret;
 373 }
 374
 375 /***********************************************************************
 376  *              InitializeSecurityContextW
 377  */
 378 static SECURITY_STATUS SEC_ENTRY ntlm_InitializeSecurityContextW(
 379  PCredHandle phCredential, PCtxtHandle phContext, SEC_WCHAR *pszTargetName,
 380  ULONG fContextReq, ULONG Reserved1, ULONG TargetDataRep,
 381  PSecBufferDesc pInput, ULONG Reserved2, PCtxtHandle phNewContext,
 382  PSecBufferDesc pOutput, ULONG *pfContextAttr, PTimeStamp ptsExpiry)
 383 {
 384     SECURITY_STATUS ret;
 385     PNegoHelper helper;
 386     ULONG ctxt_attr = 0;
 387     char* buffer, *want_flags = NULL;
 388     PBYTE bin;
 389     int buffer_len, bin_len, max_len = NTLM_MAX_BUF;
 390
 391     TRACE("%p %p %s %d %d %d %p %d %p %p %p %p\n", phCredential, phContext,
 392      debugstr_w(pszTargetName), fContextReq, Reserved1, TargetDataRep, pInput,
 393      Reserved1, phNewContext, pOutput, pfContextAttr, ptsExpiry);
 394
 395     if(!phCredential)
 396         return SEC_E_INVALID_HANDLE;
 397
 398     /* As the server side of sspi never calls this, make sure that
 399      * the handler is a client handler.
 400      */
 401     helper = (PNegoHelper)phCredential->dwLower;
 402     if(helper->mode != NTLM_CLIENT)
 403     {
 404         TRACE("Helper mode = %d\n", helper->mode);
 405         return SEC_E_INVALID_HANDLE;
 406     }
 407
 408     /****************************************
 409      * When communicating with the client, there can be the
 410      * following reply packets:
 411      * YR <base64 blob>         should be sent to the server
 412      * PW                       should be sent back to helper with
 413      *                          base64 encoded password
 414      * AF <base64 blob>         client is done, blob should be
 415      *                          sent to server with KK prefixed
 416      * GF <string list>         A string list of negotiated flags
 417      * GK <base64 blob>         base64 encoded session key
 418      * BH <char reason>         something broke
 419      */
 420     /* The squid cache size is 2010 chars, and that's what ntlm_auth uses */
 421
 422     if (pszTargetName)
 423     {
 424         TRACE("According to a MS whitepaper pszTargetName is ignored.\n");
 425     }
 426
 427     if(TargetDataRep == SECURITY_NETWORK_DREP){
 428         TRACE("Setting SECURITY_NETWORK_DREP\n");
 429     }
 430
 431     buffer = HeapAlloc(GetProcessHeap(), 0, sizeof(char) * NTLM_MAX_BUF);
 432     bin = HeapAlloc(GetProcessHeap(), 0, sizeof(BYTE) * NTLM_MAX_BUF);
 433
 434     if((phContext == NULL) && (pInput == NULL))
 435     {
 436         TRACE("First time in ISC()\n");
 437         /* Allocate space for a maximal string of
 438          * "SF NTLMSSP_FEATURE_SIGN NTLMSSP_FEATURE_SEAL
 439          * NTLMSSP_FEATURE_SESSION_KEY"
 440          */
 441         want_flags = HeapAlloc(GetProcessHeap(), 0, 73);
 442         if(want_flags == NULL)
 443         {
 444             ret = SEC_E_INSUFFICIENT_MEMORY;
 445             goto isc_end;
 446         }
 447         lstrcpyA(want_flags, "SF");
 448         if(fContextReq & ISC_REQ_CONFIDENTIALITY)
 449         {
 450             char *ptr;
 451             if((ptr = strstr(want_flags, "NTLMSSP_FEATURE_SEAL")) == NULL)
 452                 lstrcatA(want_flags, " NTLMSSP_FEATURE_SEAL");
 453         }
 454         if(fContextReq & ISC_REQ_CONNECTION)
 455             ctxt_attr |= ISC_RET_CONNECTION;
 456         if(fContextReq & ISC_REQ_EXTENDED_ERROR)
 457             ctxt_attr |= ISC_RET_EXTENDED_ERROR;
 458         if(fContextReq & ISC_REQ_INTEGRITY)
 459         {
 460             char *ptr;
 461             if((ptr = strstr(want_flags, "NTLMSSP_FEATURE_SIGN")) == NULL)
 462                 lstrcatA(want_flags, " NTLMSSP_FEATURE_SIGN");
 463         }
 464         if(fContextReq & ISC_REQ_MUTUAL_AUTH)
 465             ctxt_attr |= ISC_RET_MUTUAL_AUTH;
 466         if(fContextReq & ISC_REQ_REPLAY_DETECT)
 467         {
 468             char *ptr;
 469             if((ptr = strstr(want_flags, "NTLMSSP_FEATURE_SIGN")) == NULL)
 470                 lstrcatA(want_flags, " NTLMSSP_FEATURE_SIGN");
 471         }
 472         if(fContextReq & ISC_REQ_SEQUENCE_DETECT)
 473         {
 474             char *ptr;
 475             if((ptr = strstr(want_flags, "NTLMSSP_FEATURE_SIGN")) == NULL)
 476                 lstrcatA(want_flags, " NTLMSSP_FEATURE_SIGN");
 477         }
 478         if(fContextReq & ISC_REQ_STREAM)
 479             FIXME("ISC_REQ_STREAM\n");
 480         if(fContextReq & ISC_REQ_USE_DCE_STYLE)
 481             ctxt_attr |= ISC_RET_USED_DCE_STYLE;
 482         if(fContextReq & ISC_REQ_DELEGATE)
 483             ctxt_attr |= ISC_RET_DELEGATE;
 484
 485         /* If no password is given, try to use cached credentials. Fall back to an empty
 486          * password if this failed. */
 487         if(helper->password == NULL)
 488         {
 489             lstrcpynA(buffer, "OK", max_len-1);
 490             if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
 491                 goto isc_end;
 492             /* If the helper replied with "PW", using cached credentials failed */
 493             if(!strncmp(buffer, "PW", 2))
 494             {
 495                 TRACE("Using cached credentials failed. Using empty password.\n");
 496                 lstrcpynA(buffer, "PW AA==", max_len-1);
 497             }
 498             else /* Just do a noop on the next run */
 499                 lstrcpynA(buffer, "OK", max_len-1);
 500         }
 501         else
 502         {
 503             lstrcpynA(buffer, "PW ", max_len-1);
 504             if((ret = encodeBase64((unsigned char*)helper->password,
 505                         helper->pwlen-2, buffer+3,
 506                         max_len-3, &buffer_len)) != SEC_E_OK)
 507             {
 508                 TRACE("Deleting password!\n");
 509                 memset(helper->password, 0, helper->pwlen-2);
 510                 HeapFree(GetProcessHeap(), 0, helper->password);
 511                 goto isc_end;
 512             }
 513
 514         }
 515
 516         TRACE("Sending to helper: %s\n", debugstr_a(buffer));
 517         if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
 518             goto isc_end;
 519
 520         TRACE("Helper returned %s\n", debugstr_a(buffer));
 521
 522         if(lstrlenA(want_flags) > 2)
 523         {
 524             TRACE("Want flags are %s\n", debugstr_a(want_flags));
 525             lstrcpynA(buffer, want_flags, max_len-1);
 526             if((ret = run_helper(helper, buffer, max_len, &buffer_len))
 527                     != SEC_E_OK)
 528                 goto isc_end;
 529             if(!strncmp(buffer, "BH", 2))
 530                 ERR("Helper doesn't understand new command set. Expect more things to fail.\n");
 531         }
 532
 533         lstrcpynA(buffer, "YR", max_len-1);
 534
 535         if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
 536             goto isc_end;
 537
 538         TRACE("%s\n", buffer);
 539
 540         if(strncmp(buffer, "YR ", 3) != 0)
 541         {
 542             /* Something borked */
 543             TRACE("Helper returned %c%c\n", buffer[0], buffer[1]);
 544             ret = SEC_E_INTERNAL_ERROR;
 545             goto isc_end;
 546         }
 547         if((ret = decodeBase64(buffer+3, buffer_len-3, bin,
 548                         max_len-1, &bin_len)) != SEC_E_OK)
 549             goto isc_end;
 550
 551         /* put the decoded client blob into the out buffer */
 552
 553         ret = SEC_I_CONTINUE_NEEDED;
 554     }
 555     else
 556     {
 557         /* handle second call here */
 558         /* encode server data to base64 */
 559         if (!pInput || !pInput->cBuffers)
 560         {
 561             ret = SEC_E_INCOMPLETE_MESSAGE;
 562             goto isc_end;
 563         }
 564
 565         if (!pInput->pBuffers[0].pvBuffer)
 566         {
 567             ret = SEC_E_INTERNAL_ERROR;
 568             goto isc_end;
 569         }
 570
 571         if(pInput->pBuffers[0].cbBuffer > max_len)
 572         {
 573             TRACE("pInput->pBuffers[0].cbBuffer is: %ld\n",
 574                     pInput->pBuffers[0].cbBuffer);
 575             ret = SEC_E_INVALID_TOKEN;
 576             goto isc_end;
 577         }
 578         else
 579             bin_len = pInput->pBuffers[0].cbBuffer;
 580
 581         memcpy(bin, pInput->pBuffers[0].pvBuffer, bin_len);
 582
 583         lstrcpynA(buffer, "TT ", max_len-1);
 584
 585         if((ret = encodeBase64(bin, bin_len, buffer+3,
 586                         max_len-3, &buffer_len)) != SEC_E_OK)
 587             goto isc_end;
 588
 589         TRACE("Server sent: %s\n", debugstr_a(buffer));
 590
 591         /* send TT base64 blob to ntlm_auth */
 592         if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
 593             goto isc_end;
 594
 595         TRACE("Helper replied: %s\n", debugstr_a(buffer));
 596
 597         if( (strncmp(buffer, "KK ", 3) != 0) &&
 598                 (strncmp(buffer, "AF ", 3) !=0))
 599         {
 600             TRACE("Helper returned %c%c\n", buffer[0], buffer[1]);
 601             ret = SEC_E_INVALID_TOKEN;
 602             goto isc_end;
 603         }
 604
 605         /* decode the blob and send it to server */
 606         if((ret = decodeBase64(buffer+3, buffer_len-3, bin, max_len,
 607                         &bin_len)) != SEC_E_OK)
 608         {
 609             goto isc_end;
 610         }
 611
 612         phNewContext->dwUpper = ctxt_attr;
 613         phNewContext->dwLower = (ULONG_PTR)helper;
 614
 615         ret = SEC_E_OK;
 616     }
 617
 618     /* put the decoded client blob into the out buffer */
 619
 620     if (fContextReq & ISC_REQ_ALLOCATE_MEMORY)
 621     {
 622         if (pOutput)
 623         {
 624             pOutput->cBuffers = 1;
 625             pOutput->pBuffers[0].pvBuffer = SECUR32_ALLOC(bin_len);
 626             pOutput->pBuffers[0].cbBuffer = bin_len;
 627         }
 628     }
 629
 630     if (!pOutput || !pOutput->cBuffers || pOutput->pBuffers[0].cbBuffer < bin_len)
 631     {
 632         TRACE("out buffer is NULL or has not enough space\n");
 633         ret = SEC_E_BUFFER_TOO_SMALL;
 634         goto isc_end;
 635     }
 636
 637     if (!pOutput->pBuffers[0].pvBuffer)
 638     {
 639         TRACE("out buffer is NULL\n");
 640         ret = SEC_E_INTERNAL_ERROR;
 641         goto isc_end;
 642     }
 643
 644     pOutput->pBuffers[0].cbBuffer = bin_len;
 645     pOutput->pBuffers[0].BufferType = SECBUFFER_DATA;
 646     memcpy(pOutput->pBuffers[0].pvBuffer, bin, bin_len);
 647
 648     if(ret == SEC_E_OK)
 649     {
 650         TRACE("Getting negotiated flags\n");
 651         lstrcpynA(buffer, "GF", max_len - 1);
 652         if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
 653             goto isc_end;
 654
 655         if(buffer_len < 3)
 656         {
 657             TRACE("No flags negotiated.\n");
 658             helper->neg_flags = 0l;
 659         }
 660         else
 661         {
 662             TRACE("Negotiated %s\n", debugstr_a(buffer));
 663             sscanf(buffer + 3, "%lx", &(helper->neg_flags));
 664             TRACE("Stored 0x%08lx as flags\n", helper->neg_flags);
 665         }
 666
 667         TRACE("Getting session key\n");
 668         lstrcpynA(buffer, "GK", max_len - 1);
 669         if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
 670             goto isc_end;
 671
 672         if(strncmp(buffer, "BH", 2) == 0)
 673         {
 674             TRACE("No key negotiated.\n");
 675             helper->valid_session_key = FALSE;
 676             helper->session_key = HeapAlloc(GetProcessHeap(), 0, 16);
 677             /*Generate the dummy session key = MD4(MD4(password))*/
 678             if(helper->password)
 679             {
 680                 SEC_WCHAR *unicode_password;
 681                 int passwd_lenW;
 682
 683                 TRACE("Converting password to unicode.\n");
 684                 passwd_lenW = MultiByteToWideChar(CP_ACP, 0,
 685                         (LPCSTR)helper->password, helper->pwlen,
 686                         NULL, 0);
 687                 unicode_password = HeapAlloc(GetProcessHeap(), 0,
 688                         passwd_lenW * sizeof(SEC_WCHAR));
 689                 MultiByteToWideChar(CP_ACP, 0, (LPCSTR)helper->password,
 690                         helper->pwlen, unicode_password, passwd_lenW);
 691
 692                 SECUR32_CreateNTLMv1SessionKey((PBYTE)unicode_password,
 693                         lstrlenW(unicode_password) * sizeof(SEC_WCHAR), helper->session_key);
 694
 695                 HeapFree(GetProcessHeap(), 0, unicode_password);
 696             }
 697             else
 698                 memset(helper->session_key, 0, 16);
 699         }
 700         else if(strncmp(buffer, "GK ", 3) == 0)
 701         {
 702             if((ret = decodeBase64(buffer+3, buffer_len-3, bin, max_len,
 703                             &bin_len)) != SEC_E_OK)
 704             {
 705                 TRACE("Failed to decode session key\n");
 706             }
 707             TRACE("Session key is %s\n", debugstr_a(buffer+3));
 708             helper->valid_session_key = TRUE;
 709             helper->session_key = HeapAlloc(GetProcessHeap(), 0, bin_len);
 710             if(!helper->session_key)
 711             {
 712                 TRACE("Failed to allocate memory for session key\n");
 713                 ret = SEC_E_INTERNAL_ERROR;
 714                 goto isc_end;
 715             }
 716             memcpy(helper->session_key, bin, bin_len);
 717         }
 718
 719         helper->crypt.ntlm.a4i = SECUR32_arc4Alloc();
 720         SECUR32_arc4Init(helper->crypt.ntlm.a4i, helper->session_key, 16);
 721         helper->crypt.ntlm.seq_num = 0l;
 722         SECUR32_CreateNTLMv2SubKeys(helper);
 723         helper->crypt.ntlm2.send_a4i = SECUR32_arc4Alloc();
 724         helper->crypt.ntlm2.recv_a4i = SECUR32_arc4Alloc();
 725         SECUR32_arc4Init(helper->crypt.ntlm2.send_a4i,
 726                 (BYTE *)helper->crypt.ntlm2.send_seal_key, 16);
 727         SECUR32_arc4Init(helper->crypt.ntlm2.recv_a4i,
 728                (BYTE *)helper->crypt.ntlm2.recv_seal_key, 16);
 729         helper->crypt.ntlm2.send_seq_no = 0l;
 730         helper->crypt.ntlm2.recv_seq_no = 0l;
 731     }
 732
 733     if(ret != SEC_I_CONTINUE_NEEDED)
 734     {
 735         TRACE("Deleting password!\n");
 736         if(helper->password)
 737             memset(helper->password, 0, helper->pwlen-2);
 738         HeapFree(GetProcessHeap(), 0, helper->password);
 739     }
 740 isc_end:
 741     HeapFree(GetProcessHeap(), 0, want_flags);
 742     HeapFree(GetProcessHeap(), 0, buffer);
 743     HeapFree(GetProcessHeap(), 0, bin);
 744     return ret;
 745 }
 746
 747 /***********************************************************************
 748  *              InitializeSecurityContextA
 749  */
 750 static SECURITY_STATUS SEC_ENTRY ntlm_InitializeSecurityContextA(
 751  PCredHandle phCredential, PCtxtHandle phContext, SEC_CHAR *pszTargetName,
 752  ULONG fContextReq, ULONG Reserved1, ULONG TargetDataRep,
 753  PSecBufferDesc pInput,ULONG Reserved2, PCtxtHandle phNewContext,
 754  PSecBufferDesc pOutput, ULONG *pfContextAttr, PTimeStamp ptsExpiry)
 755 {
 756     SECURITY_STATUS ret;
 757
 758     TRACE("%p %p %s %d %d %d %p %d %p %p %p %p\n", phCredential, phContext,
 759      debugstr_a(pszTargetName), fContextReq, Reserved1, TargetDataRep, pInput,
 760      Reserved1, phNewContext, pOutput, pfContextAttr, ptsExpiry);
 761
 762     if (phCredential)
 763     {
 764         SEC_WCHAR *target = NULL;
 765         if(pszTargetName != NULL)
 766         {
 767             int target_size = MultiByteToWideChar(CP_ACP, 0, pszTargetName,
 768                 strlen(pszTargetName)+1, NULL, 0);
 769             target = HeapAlloc(GetProcessHeap(), 0, target_size *
 770                     sizeof(SEC_WCHAR));
 771             MultiByteToWideChar(CP_ACP, 0, pszTargetName, strlen(pszTargetName)+1,
 772                 target, target_size);
 773         }
 774
 775         ret = ntlm_InitializeSecurityContextW(phCredential, phContext, target,
 776                 fContextReq, Reserved1, TargetDataRep, pInput, Reserved2,
 777                 phNewContext, pOutput, pfContextAttr, ptsExpiry);
 778
 779         HeapFree(GetProcessHeap(), 0, target);
 780     }
 781     else
 782     {
 783         ret = SEC_E_INVALID_HANDLE;
 784     }
 785     return ret;
 786 }
 787
 788 /***********************************************************************
 789  *              AcceptSecurityContext
 790  */
 791 static SECURITY_STATUS SEC_ENTRY ntlm_AcceptSecurityContext(
 792  PCredHandle phCredential, PCtxtHandle phContext, PSecBufferDesc pInput,
 793  ULONG fContextReq, ULONG TargetDataRep, PCtxtHandle phNewContext,
 794  PSecBufferDesc pOutput, ULONG *pfContextAttr, PTimeStamp ptsExpiry)
 795 {
 796     SECURITY_STATUS ret;
 797     char *buffer, *want_flags = NULL;
 798     PBYTE bin;
 799     int buffer_len, bin_len, max_len = NTLM_MAX_BUF;
 800     ULONG ctxt_attr = 0;
 801     PNegoHelper helper;
 802
 803     TRACE("%p %p %p %d %d %p %p %p %p\n", phCredential, phContext, pInput,
 804      fContextReq, TargetDataRep, phNewContext, pOutput, pfContextAttr,
 805      ptsExpiry);
 806
 807     if (!phCredential)
 808         return SEC_E_INVALID_HANDLE;
 809
 810     helper = (PNegoHelper)phCredential->dwLower;
 811
 812     buffer = HeapAlloc(GetProcessHeap(), 0, sizeof(char) * NTLM_MAX_BUF);
 813     bin    = HeapAlloc(GetProcessHeap(),0, sizeof(BYTE) * NTLM_MAX_BUF);
 814
 815     if(helper->mode != NTLM_SERVER)
 816     {
 817         ret = SEC_E_INVALID_HANDLE;
 818         goto asc_end;
 819     }
 820
 821     if(TargetDataRep == SECURITY_NETWORK_DREP){
 822         TRACE("Using SECURITY_NETWORK_DREP\n");
 823     }
 824
 825     if(phContext == NULL)
 826     {
 827         /* This is the first call to AcceptSecurityHandle */
 828         if(pInput == NULL)
 829         {
 830             ret = SEC_E_INCOMPLETE_MESSAGE;
 831             goto asc_end;
 832         }
 833
 834         if(pInput->cBuffers < 1)
 835         {
 836             ret = SEC_E_INCOMPLETE_MESSAGE;
 837             goto asc_end;
 838         }
 839
 840         if(pInput->pBuffers[0].cbBuffer > max_len)
 841         {
 842             ret = SEC_E_INVALID_TOKEN;
 843             goto asc_end;
 844         }
 845         else
 846             bin_len = pInput->pBuffers[0].cbBuffer;
 847
 848         /* Handle all the flags */
 849         want_flags = HeapAlloc(GetProcessHeap(), 0, 73);
 850         if(want_flags == NULL)
 851         {
 852             TRACE("Failed to allocate memory for the want_flags!\n");
 853             ret = SEC_E_INSUFFICIENT_MEMORY;
 854             goto asc_end;
 855         }
 856         lstrcpyA(want_flags, "SF");
 857         if(fContextReq & ASC_REQ_ALLOCATE_MEMORY)
 858         {
 859             FIXME("ASC_REQ_ALLOCATE_MEMORY stub\n");
 860         }
 861         if(fContextReq & ASC_REQ_CONFIDENTIALITY)
 862         {
 863             lstrcatA(want_flags, " NTLMSSP_FEATURE_SEAL");
 864         }
 865         if(fContextReq & ASC_REQ_CONNECTION)
 866         {
 867             /* This is default, so we'll enable it */
 868             lstrcatA(want_flags, " NTLMSSP_FEATURE_SESSION_KEY");
 869             ctxt_attr |= ASC_RET_CONNECTION;
 870         }
 871         if(fContextReq & ASC_REQ_EXTENDED_ERROR)
 872         {
 873             FIXME("ASC_REQ_EXTENDED_ERROR stub\n");
 874         }
 875         if(fContextReq & ASC_REQ_INTEGRITY)
 876         {
 877             lstrcatA(want_flags, " NTLMSSP_FEATURE_SIGN");
 878         }
 879         if(fContextReq & ASC_REQ_MUTUAL_AUTH)
 880         {
 881             FIXME("ASC_REQ_MUTUAL_AUTH stub\n");
 882         }
 883         if(fContextReq & ASC_REQ_REPLAY_DETECT)
 884         {
 885             FIXME("ASC_REQ_REPLAY_DETECT stub\n");
 886         }
 887         if(fContextReq & ISC_REQ_SEQUENCE_DETECT)
 888         {
 889             FIXME("ASC_REQ_SEQUENCE_DETECT stub\n");
 890         }
 891         if(fContextReq & ISC_REQ_STREAM)
 892         {
 893             FIXME("ASC_REQ_STREAM stub\n");
 894         }
 895         /* Done with the flags */
 896
 897         if(lstrlenA(want_flags) > 3)
 898         {
 899             TRACE("Server set want_flags: %s\n", debugstr_a(want_flags));
 900             lstrcpynA(buffer, want_flags, max_len - 1);
 901             if((ret = run_helper(helper, buffer, max_len, &buffer_len)) !=
 902                     SEC_E_OK)
 903                 goto asc_end;
 904             if(!strncmp(buffer, "BH", 2))
 905                 TRACE("Helper doesn't understand new command set\n");
 906         }
 907
 908         /* This is the YR request from the client, encode to base64 */
 909
 910         memcpy(bin, pInput->pBuffers[0].pvBuffer, bin_len);
 911
 912         lstrcpynA(buffer, "YR ", max_len-1);
 913
 914         if((ret = encodeBase64(bin, bin_len, buffer+3, max_len-3,
 915                     &buffer_len)) != SEC_E_OK)
 916         {
 917             goto asc_end;
 918         }
 919
 920         TRACE("Client sent: %s\n", debugstr_a(buffer));
 921
 922         if((ret = run_helper(helper, buffer, max_len, &buffer_len)) !=
 923                     SEC_E_OK)
 924         {
 925             goto asc_end;
 926         }
 927
 928         TRACE("Reply from ntlm_auth: %s\n", debugstr_a(buffer));
 929         /* The expected answer is TT <base64 blob> */
 930
 931         if(strncmp(buffer, "TT ", 3) != 0)
 932         {
 933             ret = SEC_E_INTERNAL_ERROR;
 934             goto asc_end;
 935         }
 936
 937         if((ret = decodeBase64(buffer+3, buffer_len-3, bin, max_len,
 938                         &bin_len)) != SEC_E_OK)
 939         {
 940             goto asc_end;
 941         }
 942
 943         /* send this to the client */
 944         if(pOutput == NULL)
 945         {
 946             ret = SEC_E_INSUFFICIENT_MEMORY;
 947             goto asc_end;
 948         }
 949
 950         if(pOutput->cBuffers < 1)
 951         {
 952             ret = SEC_E_INSUFFICIENT_MEMORY;
 953             goto asc_end;
 954         }
 955
 956         pOutput->pBuffers[0].cbBuffer = bin_len;
 957         pOutput->pBuffers[0].BufferType = SECBUFFER_DATA;
 958         memcpy(pOutput->pBuffers[0].pvBuffer, bin, bin_len);
 959         ret = SEC_I_CONTINUE_NEEDED;
 960
 961     }
 962     else
 963     {
 964         /* we expect a KK request from client */
 965         if(pInput == NULL)
 966         {
 967             ret = SEC_E_INCOMPLETE_MESSAGE;
 968             goto asc_end;
 969         }
 970
 971         if(pInput->cBuffers < 1)
 972         {
 973             ret = SEC_E_INCOMPLETE_MESSAGE;
 974             goto asc_end;
 975         }
 976
 977         if(pInput->pBuffers[0].cbBuffer > max_len)
 978         {
 979             ret = SEC_E_INVALID_TOKEN;
 980             goto asc_end;
 981         }
 982         else
 983             bin_len = pInput->pBuffers[0].cbBuffer;
 984
 985         memcpy(bin, pInput->pBuffers[0].pvBuffer, bin_len);
 986
 987         lstrcpynA(buffer, "KK ", max_len-1);
 988
 989         if((ret = encodeBase64(bin, bin_len, buffer+3, max_len-3,
 990                     &buffer_len)) != SEC_E_OK)
 991         {
 992             goto asc_end;
 993         }
 994
 995         TRACE("Client sent: %s\n", debugstr_a(buffer));
 996
 997         if((ret = run_helper(helper, buffer, max_len, &buffer_len)) !=
 998                     SEC_E_OK)
 999         {
1000             goto asc_end;
1001         }
1002
1003         TRACE("Reply from ntlm_auth: %s\n", debugstr_a(buffer));
1004
1005         if(strncmp(buffer, "AF ", 3) != 0)
1006         {
1007             if(strncmp(buffer, "NA ", 3) == 0)
1008             {
1009                 ret = SEC_E_LOGON_DENIED;
1010                 goto asc_end;
1011             }
1012             else
1013             {
1014                 ret = SEC_E_INTERNAL_ERROR;
1015                 goto asc_end;
1016             }
1017         }
1018         pOutput->pBuffers[0].cbBuffer = 0;
1019         ret = SEC_E_OK;
1020
1021         TRACE("Getting negotiated flags\n");
1022         lstrcpynA(buffer, "GF", max_len - 1);
1023         if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
1024             goto asc_end;
1025
1026         if(buffer_len < 3)
1027         {
1028             TRACE("No flags negotiated, or helper does not support GF command\n");
1029         }
1030         else
1031         {
1032             TRACE("Negotiated %s\n", debugstr_a(buffer));
1033             sscanf(buffer + 3, "%lx", &(helper->neg_flags));
1034             TRACE("Stored 0x%08lx as flags\n", helper->neg_flags);
1035         }
1036
1037         TRACE("Getting session key\n");
1038         lstrcpynA(buffer, "GK", max_len - 1);
1039         if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
1040             goto asc_end;
1041
1042         if(buffer_len < 3)
1043             TRACE("Helper does not support GK command\n");
1044         else
1045         {
1046             if(strncmp(buffer, "BH ", 3) == 0)
1047             {
1048                 TRACE("Helper sent %s\n", debugstr_a(buffer+3));
1049                 helper->valid_session_key = FALSE;
1050                 helper->session_key = HeapAlloc(GetProcessHeap(), 0, 16);
1051                 /*FIXME: Generate the dummy session key = MD4(MD4(password))*/
1052                 memset(helper->session_key, 0 , 16);
1053             }
1054             else if(strncmp(buffer, "GK ", 3) == 0)
1055             {
1056                 if((ret = decodeBase64(buffer+3, buffer_len-3, bin, max_len,
1057                                 &bin_len)) != SEC_E_OK)
1058                 {
1059                     TRACE("Failed to decode session key\n");
1060                 }
1061                 TRACE("Session key is %s\n", debugstr_a(buffer+3));
1062                 helper->valid_session_key = TRUE;
1063                 helper->session_key = HeapAlloc(GetProcessHeap(), 0, 16);
1064                 if(!helper->session_key)
1065                 {
1066                     TRACE("Failed to allocate memory for session key\n");
1067                     ret = SEC_E_INTERNAL_ERROR;
1068                     goto asc_end;
1069                 }
1070                 memcpy(helper->session_key, bin, 16);
1071             }
1072         }
1073         helper->crypt.ntlm.a4i = SECUR32_arc4Alloc();
1074         SECUR32_arc4Init(helper->crypt.ntlm.a4i, helper->session_key, 16);
1075         helper->crypt.ntlm.seq_num = 0l;
1076     }
1077
1078     phNewContext->dwUpper = ctxt_attr;
1079     phNewContext->dwLower = (ULONG_PTR)helper;
1080
1081 asc_end:
1082     HeapFree(GetProcessHeap(), 0, want_flags);
1083     HeapFree(GetProcessHeap(), 0, buffer);
1084     HeapFree(GetProcessHeap(), 0, bin);
1085     return ret;
1086 }
1087
1088 /***********************************************************************
1089  *              CompleteAuthToken
1090  */
1091 static SECURITY_STATUS SEC_ENTRY ntlm_CompleteAuthToken(PCtxtHandle phContext,
1092  PSecBufferDesc pToken)
1093 {
1094     /* We never need to call CompleteAuthToken anyway */
1095     TRACE("%p %p\n", phContext, pToken);
1096     if (!phContext)
1097         return SEC_E_INVALID_HANDLE;
1098
1099     return SEC_E_OK;
1100 }
1101
1102 /***********************************************************************
1103  *              DeleteSecurityContext
1104  */
1105 static SECURITY_STATUS SEC_ENTRY ntlm_DeleteSecurityContext(PCtxtHandle phContext)
1106 {
1107     PNegoHelper helper;
1108
1109     TRACE("%p\n", phContext);
1110     if (!phContext)
1111         return SEC_E_INVALID_HANDLE;
1112
1113     helper = (PNegoHelper)phContext->dwLower;
1114
1115     phContext->dwUpper = 0;
1116     phContext->dwLower = 0;
1117
1118     SECUR32_arc4Cleanup(helper->crypt.ntlm.a4i);
1119     HeapFree(GetProcessHeap(), 0, helper->session_key);
1120     helper->valid_session_key = FALSE;
1121     SECUR32_arc4Cleanup(helper->crypt.ntlm2.send_a4i);
1122     SECUR32_arc4Cleanup(helper->crypt.ntlm2.recv_a4i);
1123     HeapFree(GetProcessHeap(), 0, helper->crypt.ntlm2.send_sign_key);
1124     HeapFree(GetProcessHeap(), 0, helper->crypt.ntlm2.send_seal_key);
1125     HeapFree(GetProcessHeap(), 0, helper->crypt.ntlm2.recv_sign_key);
1126     HeapFree(GetProcessHeap(), 0, helper->crypt.ntlm2.recv_seal_key);
1127
1128     return SEC_E_OK;
1129 }
1130
1131 /***********************************************************************
1132  *              QueryContextAttributesW
1133  */
1134 static SECURITY_STATUS SEC_ENTRY ntlm_QueryContextAttributesW(PCtxtHandle phContext,
1135  ULONG ulAttribute, void *pBuffer)
1136 {
1137     TRACE("%p %d %p\n", phContext, ulAttribute, pBuffer);
1138     if (!phContext)
1139         return SEC_E_INVALID_HANDLE;
1140
1141     switch(ulAttribute)
1142     {
1143 #define _x(x) case (x) : FIXME(#x" stub\n"); break
1144         _x(SECPKG_ATTR_ACCESS_TOKEN);
1145         _x(SECPKG_ATTR_AUTHORITY);
1146         _x(SECPKG_ATTR_DCE_INFO);
1147         case SECPKG_ATTR_FLAGS:
1148         {
1149             PSecPkgContext_Flags spcf = (PSecPkgContext_Flags)pBuffer;
1150             PNegoHelper helper = (PNegoHelper)phContext->dwLower;
1151
1152             spcf->Flags = 0;
1153             if(helper->neg_flags & NTLMSSP_NEGOTIATE_SIGN)
1154                 spcf->Flags |= ISC_RET_INTEGRITY;
1155             if(helper->neg_flags & NTLMSSP_NEGOTIATE_SEAL)
1156                 spcf->Flags |= ISC_RET_CONFIDENTIALITY;
1157             return SEC_E_OK;
1158         }
1159         _x(SECPKG_ATTR_KEY_INFO);
1160         _x(SECPKG_ATTR_LIFESPAN);
1161         _x(SECPKG_ATTR_NAMES);
1162         _x(SECPKG_ATTR_NATIVE_NAMES);
1163         _x(SECPKG_ATTR_NEGOTIATION_INFO);
1164         _x(SECPKG_ATTR_PACKAGE_INFO);
1165         _x(SECPKG_ATTR_PASSWORD_EXPIRY);
1166         _x(SECPKG_ATTR_SESSION_KEY);
1167         case SECPKG_ATTR_SIZES:
1168         {
1169             PSecPkgContext_Sizes spcs = (PSecPkgContext_Sizes)pBuffer;
1170             spcs->cbMaxToken = NTLM_MAX_BUF;
1171             spcs->cbMaxSignature = 16;
1172             spcs->cbBlockSize = 0;
1173             spcs->cbSecurityTrailer = 16;
1174             return SEC_E_OK;
1175         }
1176         _x(SECPKG_ATTR_STREAM_SIZES);
1177         _x(SECPKG_ATTR_TARGET_INFORMATION);
1178 #undef _x
1179         default:
1180             TRACE("Unknown value %d passed for ulAttribute\n", ulAttribute);
1181     }
1182
1183     return SEC_E_UNSUPPORTED_FUNCTION;
1184 }
1185
1186 /***********************************************************************
1187  *              QueryContextAttributesA
1188  */
1189 static SECURITY_STATUS SEC_ENTRY ntlm_QueryContextAttributesA(PCtxtHandle phContext,
1190  ULONG ulAttribute, void *pBuffer)
1191 {
1192     return ntlm_QueryContextAttributesW(phContext, ulAttribute, pBuffer);
1193 }
1194
1195 /***********************************************************************
1196  *              ImpersonateSecurityContext
1197  */
1198 static SECURITY_STATUS SEC_ENTRY ntlm_ImpersonateSecurityContext(PCtxtHandle phContext)
1199 {
1200     SECURITY_STATUS ret;
1201
1202     TRACE("%p\n", phContext);
1203     if (phContext)
1204     {
1205         ret = SEC_E_UNSUPPORTED_FUNCTION;
1206     }
1207     else
1208     {
1209         ret = SEC_E_INVALID_HANDLE;
1210     }
1211     return ret;
1212 }
1213
1214 /***********************************************************************
1215  *              RevertSecurityContext
1216  */
1217 static SECURITY_STATUS SEC_ENTRY ntlm_RevertSecurityContext(PCtxtHandle phContext)
1218 {
1219     SECURITY_STATUS ret;
1220
1221     TRACE("%p\n", phContext);
1222     if (phContext)
1223     {
1224         ret = SEC_E_UNSUPPORTED_FUNCTION;
1225     }
1226     else
1227     {
1228         ret = SEC_E_INVALID_HANDLE;
1229     }
1230     return ret;
1231 }
1232
1233 /*************************************************************************
1234  *             ntlm_GetTokenBufferIndex
1235  * Calculates the index of the secbuffer with BufferType == SECBUFFER_TOKEN
1236  * Returns index if found or -1 if not found.
1237  */
1238 static int ntlm_GetTokenBufferIndex(PSecBufferDesc pMessage)
1239 {
1240     UINT i;
1241
1242     TRACE("%p\n", pMessage);
1243
1244     for( i = 0; i < pMessage->cBuffers; ++i )
1245     {
1246         if(pMessage->pBuffers[i].BufferType == SECBUFFER_TOKEN)
1247             return i;
1248     }
1249
1250     return -1;
1251 }
1252
1253 /***********************************************************************
1254  *             ntlm_CreateSignature
1255  * As both MakeSignature and VerifySignature need this, but different keys
1256  * are needed for NTLMv2, the logic goes into a helper function.
1257  * To ensure maximal reusability, we can specify the direction as NTLM_SEND for
1258  * signing/encrypting and NTLM_RECV for verfying/decrypting. When encrypting,
1259  * the signature is encrypted after the message was encrypted, so
1260  * CreateSignature shouldn't do it. In this case, encrypt_sig can be set to
1261  * false.
1262  */
1263 static SECURITY_STATUS ntlm_CreateSignature(PNegoHelper helper, PSecBufferDesc pMessage,
1264         int token_idx, SignDirection direction, BOOL encrypt_sig)
1265 {
1266     ULONG sign_version = 1;
1267     UINT i;
1268     PBYTE sig;
1269     TRACE("%p, %p, %d, %d, %d\n", helper, pMessage, token_idx, direction,
1270             encrypt_sig);
1271
1272     sig = pMessage->pBuffers[token_idx].pvBuffer;
1273
1274     if(helper->neg_flags & NTLMSSP_NEGOTIATE_NTLM2 &&
1275             helper->neg_flags & NTLMSSP_NEGOTIATE_SIGN)
1276     {
1277         BYTE digest[16];
1278         BYTE seq_no[4];
1279         HMAC_MD5_CTX hmac_md5_ctx;
1280
1281         TRACE("Signing NTLM2 style\n");
1282
1283         if(direction == NTLM_SEND)
1284         {
1285             seq_no[0] = (helper->crypt.ntlm2.send_seq_no >>  0) & 0xff;
1286             seq_no[1] = (helper->crypt.ntlm2.send_seq_no >>  8) & 0xff;
1287             seq_no[2] = (helper->crypt.ntlm2.send_seq_no >> 16) & 0xff;
1288             seq_no[3] = (helper->crypt.ntlm2.send_seq_no >> 24) & 0xff;
1289
1290             ++(helper->crypt.ntlm2.send_seq_no);
1291
1292             HMACMD5Init(&hmac_md5_ctx, helper->crypt.ntlm2.send_sign_key, 16);
1293         }
1294         else
1295         {
1296             seq_no[0] = (helper->crypt.ntlm2.recv_seq_no >>  0) & 0xff;
1297             seq_no[1] = (helper->crypt.ntlm2.recv_seq_no >>  8) & 0xff;
1298             seq_no[2] = (helper->crypt.ntlm2.recv_seq_no >> 16) & 0xff;
1299             seq_no[3] = (helper->crypt.ntlm2.recv_seq_no >> 24) & 0xff;
1300
1301             ++(helper->crypt.ntlm2.recv_seq_no);
1302
1303             HMACMD5Init(&hmac_md5_ctx, helper->crypt.ntlm2.recv_sign_key, 16);
1304         }
1305
1306         HMACMD5Update(&hmac_md5_ctx, seq_no, 4);
1307         for( i = 0; i < pMessage->cBuffers; ++i )
1308         {
1309             if(pMessage->pBuffers[i].BufferType & SECBUFFER_DATA)
1310                 HMACMD5Update(&hmac_md5_ctx, (BYTE *)pMessage->pBuffers[i].pvBuffer,
1311                         pMessage->pBuffers[i].cbBuffer);
1312         }
1313
1314         HMACMD5Final(&hmac_md5_ctx, digest);
1315
1316         if(encrypt_sig && helper->neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCHANGE)
1317         {
1318             if(direction == NTLM_SEND)
1319                 SECUR32_arc4Process(helper->crypt.ntlm2.send_a4i, digest, 8);
1320             else
1321                 SECUR32_arc4Process(helper->crypt.ntlm2.recv_a4i, digest, 8);
1322         }
1323
1324         /* The NTLM2 signature is the sign version */
1325         sig[ 0] = (sign_version >>  0) & 0xff;
1326         sig[ 1] = (sign_version >>  8) & 0xff;
1327         sig[ 2] = (sign_version >> 16) & 0xff;
1328         sig[ 3] = (sign_version >> 24) & 0xff;
1329         /* The first 8 bytes of the digest */
1330         memcpy(sig+4, digest, 8);
1331         /* And the sequence number */
1332         memcpy(sig+12, seq_no, 4);
1333
1334         pMessage->pBuffers[token_idx].cbBuffer = 16;
1335
1336         return SEC_E_OK;
1337     }
1338     if(helper->neg_flags & NTLMSSP_NEGOTIATE_SIGN)
1339     {
1340         ULONG crc = 0U;
1341         TRACE("Signing NTLM1 style\n");
1342
1343         for(i=0; i < pMessage->cBuffers; ++i)
1344         {
1345             if(pMessage->pBuffers[i].BufferType & SECBUFFER_DATA)
1346             {
1347                 crc = ComputeCrc32(pMessage->pBuffers[i].pvBuffer,
1348                     pMessage->pBuffers[i].cbBuffer, crc);
1349             }
1350         }
1351
1352         sig[ 0] = (sign_version >>  0) & 0xff;
1353         sig[ 1] = (sign_version >>  8) & 0xff;
1354         sig[ 2] = (sign_version >> 16) & 0xff;
1355         sig[ 3] = (sign_version >> 24) & 0xff;
1356         memset(sig+4, 0, 4);
1357         sig[ 8] = (crc >>  0) & 0xff;
1358         sig[ 9] = (crc >>  8) & 0xff;
1359         sig[10] = (crc >> 16) & 0xff;
1360         sig[11] = (crc >> 24) & 0xff;
1361         sig[12] = (helper->crypt.ntlm.seq_num >>  0) & 0xff;
1362         sig[13] = (helper->crypt.ntlm.seq_num >>  8) & 0xff;
1363         sig[14] = (helper->crypt.ntlm.seq_num >> 16) & 0xff;
1364         sig[15] = (helper->crypt.ntlm.seq_num >> 24) & 0xff;
1365
1366         ++(helper->crypt.ntlm.seq_num);
1367
1368         if(encrypt_sig)
1369             SECUR32_arc4Process(helper->crypt.ntlm.a4i, sig+4, 12);
1370         return SEC_E_OK;
1371     }
1372
1373     if(helper->neg_flags & NTLMSSP_NEGOTIATE_ALWAYS_SIGN || helper->neg_flags == 0)
1374     {
1375         TRACE("Creating a dummy signature.\n");
1376         /* A dummy signature is 0x01 followed by 15 bytes of 0x00 */
1377         memset(pMessage->pBuffers[token_idx].pvBuffer, 0, 16);
1378         memset(pMessage->pBuffers[token_idx].pvBuffer, 0x01, 1);
1379         pMessage->pBuffers[token_idx].cbBuffer = 16;
1380         return SEC_E_OK;
1381     }
1382
1383     return SEC_E_UNSUPPORTED_FUNCTION;
1384 }
1385
1386 /***********************************************************************
1387  *              MakeSignature
1388  */
1389 static SECURITY_STATUS SEC_ENTRY ntlm_MakeSignature(PCtxtHandle phContext, ULONG fQOP,
1390  PSecBufferDesc pMessage, ULONG MessageSeqNo)
1391 {
1392     PNegoHelper helper;
1393     int token_idx;
1394
1395     TRACE("%p %d %p %d\n", phContext, fQOP, pMessage, MessageSeqNo);
1396     if (!phContext)
1397         return SEC_E_INVALID_HANDLE;
1398
1399     if(fQOP)
1400         FIXME("Ignoring fQOP 0x%08x\n", fQOP);
1401
1402     if(MessageSeqNo)
1403         FIXME("Ignoring MessageSeqNo\n");
1404
1405     if(!pMessage || !pMessage->pBuffers || pMessage->cBuffers < 2)
1406         return SEC_E_INVALID_TOKEN;
1407
1408     /* If we didn't find a SECBUFFER_TOKEN type buffer */
1409     if((token_idx = ntlm_GetTokenBufferIndex(pMessage)) == -1)
1410         return SEC_E_INVALID_TOKEN;
1411
1412     if(pMessage->pBuffers[token_idx].cbBuffer < 16)
1413         return SEC_E_BUFFER_TOO_SMALL;
1414
1415     helper = (PNegoHelper)phContext->dwLower;
1416     TRACE("Negotiated flags are: 0x%08lx\n", helper->neg_flags);
1417
1418     return ntlm_CreateSignature(helper, pMessage, token_idx, NTLM_SEND, TRUE);
1419 }
1420
1421 /***********************************************************************
1422  *              VerifySignature
1423  */
1424 static SECURITY_STATUS SEC_ENTRY ntlm_VerifySignature(PCtxtHandle phContext,
1425  PSecBufferDesc pMessage, ULONG MessageSeqNo, PULONG pfQOP)
1426 {
1427     PNegoHelper helper;
1428     ULONG fQOP = 0;
1429     UINT i;
1430     int token_idx;
1431     SECURITY_STATUS ret;
1432     SecBufferDesc local_desc;
1433     PSecBuffer     local_buff;
1434     BYTE          local_sig[16];
1435
1436     TRACE("%p %p %d %p\n", phContext, pMessage, MessageSeqNo, pfQOP);
1437     if(!phContext)
1438         return SEC_E_INVALID_HANDLE;
1439
1440     if(!pMessage || !pMessage->pBuffers || pMessage->cBuffers < 2)
1441         return SEC_E_INVALID_TOKEN;
1442
1443     if((token_idx = ntlm_GetTokenBufferIndex(pMessage)) == -1)
1444         return SEC_E_INVALID_TOKEN;
1445
1446     if(pMessage->pBuffers[token_idx].cbBuffer < 16)
1447         return SEC_E_BUFFER_TOO_SMALL;
1448
1449     if(MessageSeqNo)
1450         FIXME("Ignoring MessageSeqNo\n");
1451
1452     helper = (PNegoHelper)phContext->dwLower;
1453     TRACE("Negotiated flags: 0x%08lx\n", helper->neg_flags);
1454
1455     local_buff = HeapAlloc(GetProcessHeap(), 0, pMessage->cBuffers * sizeof(SecBuffer));
1456
1457     local_desc.ulVersion = SECBUFFER_VERSION;
1458     local_desc.cBuffers = pMessage->cBuffers;
1459     local_desc.pBuffers = local_buff;
1460
1461     for(i=0; i < pMessage->cBuffers; ++i)
1462     {
1463         if(pMessage->pBuffers[i].BufferType == SECBUFFER_TOKEN)
1464         {
1465             local_buff[i].BufferType = SECBUFFER_TOKEN;
1466             local_buff[i].cbBuffer = 16;
1467             local_buff[i].pvBuffer = local_sig;
1468         }
1469         else
1470         {
1471             local_buff[i].BufferType = pMessage->pBuffers[i].BufferType;
1472             local_buff[i].cbBuffer = pMessage->pBuffers[i].cbBuffer;
1473             local_buff[i].pvBuffer = pMessage->pBuffers[i].pvBuffer;
1474         }
1475     }
1476
1477     if((ret = ntlm_CreateSignature(helper, &local_desc, token_idx, NTLM_RECV, TRUE)) != SEC_E_OK)
1478         return ret;
1479
1480     if(memcmp(((PBYTE)local_buff[token_idx].pvBuffer) + 8,
1481                 ((PBYTE)pMessage->pBuffers[token_idx].pvBuffer) + 8, 8))
1482         ret = SEC_E_MESSAGE_ALTERED;
1483     else
1484         ret = SEC_E_OK;
1485
1486     HeapFree(GetProcessHeap(), 0, local_buff);
1487     pfQOP = &fQOP;
1488
1489     return ret;
1490
1491 }
1492
1493 /***********************************************************************
1494  *             FreeCredentialsHandle
1495  */
1496 static SECURITY_STATUS SEC_ENTRY ntlm_FreeCredentialsHandle(
1497         PCredHandle phCredential)
1498 {
1499     SECURITY_STATUS ret;
1500
1501     if(phCredential){
1502         PNegoHelper helper = (PNegoHelper) phCredential->dwLower;
1503         phCredential->dwUpper = 0;
1504         phCredential->dwLower = 0;
1505         cleanup_helper(helper);
1506         ret = SEC_E_OK;
1507     }
1508     else
1509         ret = SEC_E_OK;
1510
1511     return ret;
1512 }
1513
1514 /***********************************************************************
1515  *             EncryptMessage
1516  */
1517 static SECURITY_STATUS SEC_ENTRY ntlm_EncryptMessage(PCtxtHandle phContext,
1518         ULONG fQOP, PSecBufferDesc pMessage, ULONG MessageSeqNo)
1519 {
1520     PNegoHelper helper;
1521     int token_idx;
1522
1523     TRACE("(%p %d %p %d)\n", phContext, fQOP, pMessage, MessageSeqNo);
1524
1525     if(!phContext)
1526         return SEC_E_INVALID_HANDLE;
1527
1528     if(fQOP)
1529         FIXME("Ignoring fQOP\n");
1530
1531     if(MessageSeqNo)
1532         FIXME("Ignoring MessageSeqNo\n");
1533
1534     if(!pMessage || !pMessage->pBuffers || pMessage->cBuffers < 2)
1535         return SEC_E_INVALID_TOKEN;
1536
1537     if((token_idx = ntlm_GetTokenBufferIndex(pMessage)) == -1)
1538         return SEC_E_INVALID_TOKEN;
1539
1540     if(pMessage->pBuffers[token_idx].cbBuffer < 16)
1541         return SEC_E_BUFFER_TOO_SMALL;
1542
1543     helper = (PNegoHelper) phContext->dwLower;
1544
1545     if(helper->neg_flags & NTLMSSP_NEGOTIATE_NTLM2 &&
1546             helper->neg_flags & NTLMSSP_NEGOTIATE_SEAL)
1547     {
1548         ntlm_CreateSignature(helper, pMessage, token_idx, NTLM_SEND, FALSE);
1549         SECUR32_arc4Process(helper->crypt.ntlm2.send_a4i,
1550                 (BYTE *)pMessage->pBuffers[1].pvBuffer,
1551                 pMessage->pBuffers[1].cbBuffer);
1552
1553         if(helper->neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCHANGE)
1554             SECUR32_arc4Process(helper->crypt.ntlm2.send_a4i,
1555                     ((BYTE *)pMessage->pBuffers[token_idx].pvBuffer)+4, 8);
1556
1557
1558         return SEC_E_OK;
1559     }
1560     else
1561     {
1562         PBYTE sig;
1563         ULONG save_flags;
1564
1565         /* EncryptMessage always produces real signatures, so make sure
1566          * NTLMSSP_NEGOTIATE_SIGN is set*/
1567         save_flags = helper->neg_flags;
1568         helper->neg_flags |= NTLMSSP_NEGOTIATE_SIGN;
1569         ntlm_CreateSignature(helper, pMessage, token_idx, NTLM_SEND, FALSE);
1570         helper->neg_flags = save_flags;
1571
1572         sig = pMessage->pBuffers[token_idx].pvBuffer;
1573
1574         SECUR32_arc4Process(helper->crypt.ntlm.a4i, pMessage->pBuffers[1].pvBuffer,
1575                 pMessage->pBuffers[1].cbBuffer);
1576         SECUR32_arc4Process(helper->crypt.ntlm.a4i, sig+4, 12);
1577
1578         if(helper->neg_flags & NTLMSSP_NEGOTIATE_ALWAYS_SIGN || helper->neg_flags == 0)
1579             memset(sig+4, 0, 4);
1580
1581     }
1582
1583     return SEC_E_OK;
1584 }
1585
1586 /***********************************************************************
1587  *             DecryptMessage
1588  */
1589 static SECURITY_STATUS SEC_ENTRY ntlm_DecryptMessage(PCtxtHandle phContext,
1590         PSecBufferDesc pMessage, ULONG MessageSeqNo, PULONG pfQOP)
1591 {
1592     SECURITY_STATUS ret;
1593     ULONG ntlmssp_flags_save;
1594     PNegoHelper helper;
1595     int token_idx;
1596     TRACE("(%p %p %d %p)\n", phContext, pMessage, MessageSeqNo, pfQOP);
1597
1598     if(!phContext)
1599         return SEC_E_INVALID_HANDLE;
1600
1601     if(MessageSeqNo)
1602         FIXME("Ignoring MessageSeqNo\n");
1603
1604     if(!pMessage || !pMessage->pBuffers || pMessage->cBuffers < 2)
1605         return SEC_E_INVALID_TOKEN;
1606
1607     if((token_idx = ntlm_GetTokenBufferIndex(pMessage)) == -1)
1608         return SEC_E_INVALID_TOKEN;
1609
1610     if(pMessage->pBuffers[token_idx].cbBuffer < 16)
1611         return SEC_E_BUFFER_TOO_SMALL;
1612
1613     helper = (PNegoHelper) phContext->dwLower;
1614
1615     if(helper->neg_flags & NTLMSSP_NEGOTIATE_NTLM2 && helper->neg_flags & NTLMSSP_NEGOTIATE_SEAL)
1616     {
1617         SECUR32_arc4Process(helper->crypt.ntlm2.recv_a4i,
1618                 pMessage->pBuffers[1].pvBuffer, pMessage->pBuffers[1].cbBuffer);
1619     }
1620     else
1621     {
1622         SECUR32_arc4Process(helper->crypt.ntlm.a4i,
1623                 pMessage->pBuffers[1].pvBuffer, pMessage->pBuffers[1].cbBuffer);
1624     }
1625
1626     /* Make sure we use a session key for the signature check, EncryptMessage
1627      * always does that, even in the dummy case */
1628     ntlmssp_flags_save = helper->neg_flags;
1629
1630     helper->neg_flags |= NTLMSSP_NEGOTIATE_SIGN;
1631     ret = ntlm_VerifySignature(phContext, pMessage, MessageSeqNo, pfQOP);
1632
1633     helper->neg_flags = ntlmssp_flags_save;
1634
1635     return ret;
1636 }
1637
1638 static const SecurityFunctionTableA ntlmTableA = {
1639     1,
1640     NULL,   /* EnumerateSecurityPackagesA */
1641     ntlm_QueryCredentialsAttributesA,   /* QueryCredentialsAttributesA */
1642     ntlm_AcquireCredentialsHandleA,     /* AcquireCredentialsHandleA */
1643     ntlm_FreeCredentialsHandle,         /* FreeCredentialsHandle */
1644     NULL,   /* Reserved2 */
1645     ntlm_InitializeSecurityContextA,    /* InitializeSecurityContextA */
1646     ntlm_AcceptSecurityContext,         /* AcceptSecurityContext */
1647     ntlm_CompleteAuthToken,             /* CompleteAuthToken */
1648     ntlm_DeleteSecurityContext,         /* DeleteSecurityContext */
1649     NULL,  /* ApplyControlToken */
1650     ntlm_QueryContextAttributesA,       /* QueryContextAttributesA */
1651     ntlm_ImpersonateSecurityContext,    /* ImpersonateSecurityContext */
1652     ntlm_RevertSecurityContext,         /* RevertSecurityContext */
1653     ntlm_MakeSignature,                 /* MakeSignature */
1654     ntlm_VerifySignature,               /* VerifySignature */
1655     FreeContextBuffer,                  /* FreeContextBuffer */
1656     NULL,   /* QuerySecurityPackageInfoA */
1657     NULL,   /* Reserved3 */
1658     NULL,   /* Reserved4 */
1659     NULL,   /* ExportSecurityContext */
1660     NULL,   /* ImportSecurityContextA */
1661     NULL,   /* AddCredentialsA */
1662     NULL,   /* Reserved8 */
1663     NULL,   /* QuerySecurityContextToken */
1664     ntlm_EncryptMessage,                /* EncryptMessage */
1665     ntlm_DecryptMessage,                /* DecryptMessage */
1666     NULL,   /* SetContextAttributesA */
1667 };
1668
1669 static const SecurityFunctionTableW ntlmTableW = {
1670     1,
1671     NULL,   /* EnumerateSecurityPackagesW */
1672     ntlm_QueryCredentialsAttributesW,   /* QueryCredentialsAttributesW */
1673     ntlm_AcquireCredentialsHandleW,     /* AcquireCredentialsHandleW */
1674     ntlm_FreeCredentialsHandle,         /* FreeCredentialsHandle */
1675     NULL,   /* Reserved2 */
1676     ntlm_InitializeSecurityContextW,    /* InitializeSecurityContextW */
1677     ntlm_AcceptSecurityContext,         /* AcceptSecurityContext */
1678     ntlm_CompleteAuthToken,             /* CompleteAuthToken */
1679     ntlm_DeleteSecurityContext,         /* DeleteSecurityContext */
1680     NULL,  /* ApplyControlToken */
1681     ntlm_QueryContextAttributesW,       /* QueryContextAttributesW */
1682     ntlm_ImpersonateSecurityContext,    /* ImpersonateSecurityContext */
1683     ntlm_RevertSecurityContext,         /* RevertSecurityContext */
1684     ntlm_MakeSignature,                 /* MakeSignature */
1685     ntlm_VerifySignature,               /* VerifySignature */
1686     FreeContextBuffer,                  /* FreeContextBuffer */
1687     NULL,   /* QuerySecurityPackageInfoW */
1688     NULL,   /* Reserved3 */
1689     NULL,   /* Reserved4 */
1690     NULL,   /* ExportSecurityContext */
1691     NULL,   /* ImportSecurityContextW */
1692     NULL,   /* AddCredentialsW */
1693     NULL,   /* Reserved8 */
1694     NULL,   /* QuerySecurityContextToken */
1695     ntlm_EncryptMessage,                /* EncryptMessage */
1696     ntlm_DecryptMessage,                /* DecryptMessage */
1697     NULL,   /* SetContextAttributesW */
1698 };
1699
1700 #define NTLM_COMMENT \
1701    { 'N', 'T', 'L', 'M', ' ', \
1702      'S', 'e', 'c', 'u', 'r', 'i', 't', 'y', ' ', \
1703      'P', 'a', 'c', 'k', 'a', 'g', 'e', 0}
1704
1705 static CHAR ntlm_comment_A[] = NTLM_COMMENT;
1706 static WCHAR ntlm_comment_W[] = NTLM_COMMENT;
1707
1708 #define NTLM_NAME {'N', 'T', 'L', 'M', 0}
1709
1710 static char ntlm_name_A[] = NTLM_NAME;
1711 static WCHAR ntlm_name_W[] = NTLM_NAME;
1712
1713 /* According to Windows, NTLM has the following capabilities.  */
1714 #define CAPS ( \
1715         SECPKG_FLAG_INTEGRITY | \
1716         SECPKG_FLAG_PRIVACY | \
1717         SECPKG_FLAG_TOKEN_ONLY | \
1718         SECPKG_FLAG_CONNECTION | \
1719         SECPKG_FLAG_MULTI_REQUIRED | \
1720         SECPKG_FLAG_IMPERSONATION | \
1721         SECPKG_FLAG_ACCEPT_WIN32_NAME | \
1722         SECPKG_FLAG_READONLY_WITH_CHECKSUM)
1723
1724 static const SecPkgInfoW infoW = {
1725     CAPS,
1726     1,
1727     RPC_C_AUTHN_WINNT,
1728     NTLM_MAX_BUF,
1729     ntlm_name_W,
1730     ntlm_comment_W
1731 };
1732
1733 static const SecPkgInfoA infoA = {
1734     CAPS,
1735     1,
1736     RPC_C_AUTHN_WINNT,
1737     NTLM_MAX_BUF,
1738     ntlm_name_A,
1739     ntlm_comment_A
1740 };
1741
1742 void SECUR32_initNTLMSP(void)
1743 {
1744     SECURITY_STATUS ret;
1745     PNegoHelper helper;
1746     static CHAR version[] = "--version";
1747
1748     SEC_CHAR *args[] = {
1749         ntlm_auth,
1750         version,
1751         NULL };
1752
1753     if((ret = fork_helper(&helper, ntlm_auth, args)) != SEC_E_OK)
1754     {
1755         /* Cheat and allocate a helper anyway, so cleanup later will work. */
1756         helper = HeapAlloc(GetProcessHeap(),0, sizeof(PNegoHelper));
1757         helper->major = helper->minor = helper->micro = -1;
1758     }
1759     else
1760         check_version(helper);
1761
1762     if( (helper->major >  MIN_NTLM_AUTH_MAJOR_VERSION) ||
1763         (helper->major  = MIN_NTLM_AUTH_MAJOR_VERSION  &&
1764          helper->minor >= MIN_NTLM_AUTH_MINOR_VERSION  &&
1765          helper->micro >= MIN_NTLM_AUTH_MICRO_VERSION) )
1766     {
1767         SecureProvider *provider = SECUR32_addProvider(&ntlmTableA, &ntlmTableW, NULL);
1768         SECUR32_addPackages(provider, 1L, &infoA, &infoW);
1769     }
1770     else
1771     {
1772         ERR("%s was not found or is outdated. "
1773             "Make sure that ntlm_auth >= %d.%d.%d is in your path.\n",
1774             ntlm_auth,
1775             MIN_NTLM_AUTH_MAJOR_VERSION,
1776             MIN_NTLM_AUTH_MINOR_VERSION,
1777             MIN_NTLM_AUTH_MICRO_VERSION);
1778     }
1779     cleanup_helper(helper);
1780 }