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(ntlm);
  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                     /* Get username and domain from pAuthData */
 167                     username = HeapAlloc(GetProcessHeap(), 0,
 168                             (auth_data->UserLength + 1) * sizeof(SEC_WCHAR));
 169                     memcpy(username, auth_data->User,
 170                            auth_data->UserLength * sizeof(SEC_WCHAR));
 171                     username[auth_data->UserLength] = '\0';
 172
 173                     domain = HeapAlloc(GetProcessHeap(), 0,
 174                             (auth_data->DomainLength + 1) * sizeof(SEC_WCHAR));
 175                     memcpy(domain, auth_data->Domain,
 176                            auth_data->DomainLength * sizeof(SEC_WCHAR));
 177                     domain[auth_data->DomainLength] = '\0';
 178                 }
 179                 TRACE("Username is %s\n", debugstr_w(username));
 180                 unixcp_size =  WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS,
 181                         username, -1, NULL, 0, NULL, NULL) + sizeof(username_arg);
 182                 client_user_arg = HeapAlloc(GetProcessHeap(), 0, unixcp_size);
 183                 lstrcpyA(client_user_arg, username_arg);
 184                 WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS, username, -1,
 185                         client_user_arg + sizeof(username_arg) - 1,
 186                         unixcp_size - sizeof(username_arg) + 1, NULL, NULL);
 187
 188                 TRACE("Domain name is %s\n", debugstr_w(domain));
 189                 unixcp_size = WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS,
 190                         domain, -1, NULL, 0,  NULL, NULL) + sizeof(domain_arg);
 191                 client_domain_arg = HeapAlloc(GetProcessHeap(), 0, unixcp_size);
 192                 lstrcpyA(client_domain_arg, domain_arg);
 193                 WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS, domain,
 194                         -1, client_domain_arg + sizeof(domain_arg) - 1,
 195                         unixcp_size - sizeof(domain) + 1, NULL, NULL);
 196
 197                 client_argv[0] = ntlm_auth;
 198                 client_argv[1] = helper_protocol;
 199                 client_argv[2] = client_user_arg;
 200                 client_argv[3] = client_domain_arg;
 201                 client_argv[4] = credentials_argv;
 202                 client_argv[5] = NULL;
 203
 204                 if((ret = fork_helper(&helper, ntlm_auth, client_argv)) !=
 205                         SEC_E_OK)
 206                 {
 207                     phCredential = NULL;
 208                     break;
 209                 }
 210                 else
 211                 {
 212                     helper->mode = NTLM_CLIENT;
 213
 214                     if(pAuthData != NULL)
 215                     {
 216                         PSEC_WINNT_AUTH_IDENTITY_W auth_data =
 217                            (PSEC_WINNT_AUTH_IDENTITY_W)pAuthData;
 218
 219                         if(auth_data->PasswordLength != 0)
 220                         {
 221                             helper->pwlen = WideCharToMultiByte(CP_UNIXCP,
 222                                 WC_NO_BEST_FIT_CHARS, auth_data->Password,
 223                                 auth_data->PasswordLength, NULL, 0, NULL,
 224                                 NULL);
 225
 226                             helper->password = HeapAlloc(GetProcessHeap(), 0,
 227                                     helper->pwlen);
 228
 229                             WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS,
 230                                 auth_data->Password, auth_data->PasswordLength,
 231                                 helper->password, helper->pwlen, NULL, NULL);
 232                         }
 233                     }
 234
 235                     phCredential->dwUpper = fCredentialUse;
 236                     phCredential->dwLower = (ULONG_PTR)helper;
 237                     TRACE("ACH phCredential->dwUpper: 0x%08lx, dwLower: 0x%08lx\n",
 238                             phCredential->dwUpper, phCredential->dwLower);
 239                 }
 240                 ret = SEC_E_OK;
 241                 break;
 242             }
 243         case SECPKG_CRED_BOTH:
 244             FIXME("AcquireCredentialsHandle: SECPKG_CRED_BOTH stub\n");
 245             ret = SEC_E_UNSUPPORTED_FUNCTION;
 246             phCredential = NULL;
 247             break;
 248         default:
 249             phCredential = NULL;
 250             ret = SEC_E_UNKNOWN_CREDENTIALS;
 251     }
 252
 253
 254     HeapFree(GetProcessHeap(), 0, client_user_arg);
 255     HeapFree(GetProcessHeap(), 0, client_domain_arg);
 256     HeapFree(GetProcessHeap(), 0, username);
 257     HeapFree(GetProcessHeap(), 0, domain);
 258
 259     return ret;
 260 }
 261
 262 /***********************************************************************
 263  *              AcquireCredentialsHandleA
 264  */
 265 static SECURITY_STATUS SEC_ENTRY ntlm_AcquireCredentialsHandleA(
 266  SEC_CHAR *pszPrincipal, SEC_CHAR *pszPackage, ULONG fCredentialUse,
 267  PLUID pLogonID, PVOID pAuthData, SEC_GET_KEY_FN pGetKeyFn,
 268  PVOID pGetKeyArgument, PCredHandle phCredential, PTimeStamp ptsExpiry)
 269 {
 270     SECURITY_STATUS ret;
 271     int user_sizeW, domain_sizeW, passwd_sizeW;
 272
 273     SEC_WCHAR *user = NULL, *domain = NULL, *passwd = NULL, *package = NULL;
 274
 275     PSEC_WINNT_AUTH_IDENTITY_W pAuthDataW = NULL;
 276     PSEC_WINNT_AUTH_IDENTITY_A identity  = NULL;
 277
 278     TRACE("(%s, %s, 0x%08x, %p, %p, %p, %p, %p, %p)\n",
 279      debugstr_a(pszPrincipal), debugstr_a(pszPackage), fCredentialUse,
 280      pLogonID, pAuthData, pGetKeyFn, pGetKeyArgument, phCredential, ptsExpiry);
 281
 282     if(pszPackage != NULL)
 283     {
 284         int package_sizeW = MultiByteToWideChar(CP_ACP, 0, pszPackage, -1,
 285                 NULL, 0);
 286
 287         package = HeapAlloc(GetProcessHeap(), 0, package_sizeW *
 288                 sizeof(SEC_WCHAR));
 289         MultiByteToWideChar(CP_ACP, 0, pszPackage, -1, package, package_sizeW);
 290     }
 291
 292
 293     if(pAuthData != NULL)
 294     {
 295         identity = (PSEC_WINNT_AUTH_IDENTITY_A)pAuthData;
 296
 297         if(identity->Flags == SEC_WINNT_AUTH_IDENTITY_ANSI)
 298         {
 299             pAuthDataW = HeapAlloc(GetProcessHeap(), 0,
 300                     sizeof(SEC_WINNT_AUTH_IDENTITY_W));
 301
 302             if(identity->UserLength != 0)
 303             {
 304                 user_sizeW = MultiByteToWideChar(CP_ACP, 0,
 305                     (LPCSTR)identity->User, identity->UserLength, NULL, 0);
 306                 user = HeapAlloc(GetProcessHeap(), 0, user_sizeW *
 307                         sizeof(SEC_WCHAR));
 308                 MultiByteToWideChar(CP_ACP, 0, (LPCSTR)identity->User,
 309                     identity->UserLength, user, user_sizeW);
 310             }
 311             else
 312             {
 313                 user_sizeW = 0;
 314             }
 315
 316             if(identity->DomainLength != 0)
 317             {
 318                 domain_sizeW = MultiByteToWideChar(CP_ACP, 0,
 319                     (LPCSTR)identity->Domain, identity->DomainLength, NULL, 0);
 320                 domain = HeapAlloc(GetProcessHeap(), 0, domain_sizeW
 321                     * sizeof(SEC_WCHAR));
 322                 MultiByteToWideChar(CP_ACP, 0, (LPCSTR)identity->Domain,
 323                     identity->DomainLength, domain, domain_sizeW);
 324             }
 325             else
 326             {
 327                 domain_sizeW = 0;
 328             }
 329
 330             if(identity->PasswordLength != 0)
 331             {
 332                 passwd_sizeW = MultiByteToWideChar(CP_ACP, 0,
 333                     (LPCSTR)identity->Password, identity->PasswordLength,
 334                     NULL, 0);
 335                 passwd = HeapAlloc(GetProcessHeap(), 0, passwd_sizeW
 336                     * sizeof(SEC_WCHAR));
 337                 MultiByteToWideChar(CP_ACP, 0, (LPCSTR)identity->Password,
 338                     identity->PasswordLength, passwd, passwd_sizeW);
 339             }
 340             else
 341             {
 342                 passwd_sizeW = 0;
 343             }
 344
 345             pAuthDataW->Flags = SEC_WINNT_AUTH_IDENTITY_UNICODE;
 346             pAuthDataW->User = user;
 347             pAuthDataW->UserLength = user_sizeW;
 348             pAuthDataW->Domain = domain;
 349             pAuthDataW->DomainLength = domain_sizeW;
 350             pAuthDataW->Password = passwd;
 351             pAuthDataW->PasswordLength = passwd_sizeW;
 352         }
 353         else
 354         {
 355             pAuthDataW = (PSEC_WINNT_AUTH_IDENTITY_W)identity;
 356         }
 357     }
 358
 359     ret = ntlm_AcquireCredentialsHandleW(NULL, package, fCredentialUse,
 360             pLogonID, pAuthDataW, pGetKeyFn, pGetKeyArgument, phCredential,
 361             ptsExpiry);
 362
 363     HeapFree(GetProcessHeap(), 0, package);
 364     HeapFree(GetProcessHeap(), 0, user);
 365     HeapFree(GetProcessHeap(), 0, domain);
 366     HeapFree(GetProcessHeap(), 0, passwd);
 367     if(pAuthDataW != (PSEC_WINNT_AUTH_IDENTITY_W)identity)
 368         HeapFree(GetProcessHeap(), 0, pAuthDataW);
 369
 370     return ret;
 371 }
 372
 373 /*************************************************************************
 374  *             ntlm_GetTokenBufferIndex
 375  * Calculates the index of the secbuffer with BufferType == SECBUFFER_TOKEN
 376  * Returns index if found or -1 if not found.
 377  */
 378 static int ntlm_GetTokenBufferIndex(PSecBufferDesc pMessage)
 379 {
 380     UINT i;
 381
 382     TRACE("%p\n", pMessage);
 383
 384     for( i = 0; i < pMessage->cBuffers; ++i )
 385     {
 386         if(pMessage->pBuffers[i].BufferType == SECBUFFER_TOKEN)
 387             return i;
 388     }
 389
 390     return -1;
 391 }
 392
 393 /***********************************************************************
 394  *              InitializeSecurityContextW
 395  */
 396 static SECURITY_STATUS SEC_ENTRY ntlm_InitializeSecurityContextW(
 397  PCredHandle phCredential, PCtxtHandle phContext, SEC_WCHAR *pszTargetName,
 398  ULONG fContextReq, ULONG Reserved1, ULONG TargetDataRep,
 399  PSecBufferDesc pInput, ULONG Reserved2, PCtxtHandle phNewContext,
 400  PSecBufferDesc pOutput, ULONG *pfContextAttr, PTimeStamp ptsExpiry)
 401 {
 402     SECURITY_STATUS ret;
 403     PNegoHelper helper;
 404     ULONG ctxt_attr = 0;
 405     char* buffer, *want_flags = NULL;
 406     PBYTE bin;
 407     int buffer_len, bin_len, max_len = NTLM_MAX_BUF;
 408     int token_idx;
 409
 410     TRACE("%p %p %s %d %d %d %p %d %p %p %p %p\n", phCredential, phContext,
 411      debugstr_w(pszTargetName), fContextReq, Reserved1, TargetDataRep, pInput,
 412      Reserved1, phNewContext, pOutput, pfContextAttr, ptsExpiry);
 413
 414     /****************************************
 415      * When communicating with the client, there can be the
 416      * following reply packets:
 417      * YR <base64 blob>         should be sent to the server
 418      * PW                       should be sent back to helper with
 419      *                          base64 encoded password
 420      * AF <base64 blob>         client is done, blob should be
 421      *                          sent to server with KK prefixed
 422      * GF <string list>         A string list of negotiated flags
 423      * GK <base64 blob>         base64 encoded session key
 424      * BH <char reason>         something broke
 425      */
 426     /* The squid cache size is 2010 chars, and that's what ntlm_auth uses */
 427
 428     if (pszTargetName)
 429     {
 430         TRACE("According to a MS whitepaper pszTargetName is ignored.\n");
 431     }
 432
 433     if(TargetDataRep == SECURITY_NETWORK_DREP){
 434         TRACE("Setting SECURITY_NETWORK_DREP\n");
 435     }
 436
 437     buffer = HeapAlloc(GetProcessHeap(), 0, sizeof(char) * NTLM_MAX_BUF);
 438     bin = HeapAlloc(GetProcessHeap(), 0, sizeof(BYTE) * NTLM_MAX_BUF);
 439
 440     if((phContext == NULL) && (pInput == NULL))
 441     {
 442         TRACE("First time in ISC()\n");
 443
 444         if(!phCredential)
 445             return SEC_E_INVALID_HANDLE;
 446
 447         /* As the server side of sspi never calls this, make sure that
 448          * the handler is a client handler.
 449          */
 450         helper = (PNegoHelper)phCredential->dwLower;
 451         if(helper->mode != NTLM_CLIENT)
 452         {
 453             TRACE("Helper mode = %d\n", helper->mode);
 454             return SEC_E_INVALID_HANDLE;
 455         }
 456
 457         /* Allocate space for a maximal string of
 458          * "SF NTLMSSP_FEATURE_SIGN NTLMSSP_FEATURE_SEAL
 459          * NTLMSSP_FEATURE_SESSION_KEY"
 460          */
 461         want_flags = HeapAlloc(GetProcessHeap(), 0, 73);
 462         if(want_flags == NULL)
 463         {
 464             ret = SEC_E_INSUFFICIENT_MEMORY;
 465             goto isc_end;
 466         }
 467         lstrcpyA(want_flags, "SF");
 468         if(fContextReq & ISC_REQ_CONFIDENTIALITY)
 469         {
 470             char *ptr;
 471             if((ptr = strstr(want_flags, "NTLMSSP_FEATURE_SEAL")) == NULL)
 472                 lstrcatA(want_flags, " NTLMSSP_FEATURE_SEAL");
 473         }
 474         if(fContextReq & ISC_REQ_CONNECTION)
 475             ctxt_attr |= ISC_RET_CONNECTION;
 476         if(fContextReq & ISC_REQ_EXTENDED_ERROR)
 477             ctxt_attr |= ISC_RET_EXTENDED_ERROR;
 478         if(fContextReq & ISC_REQ_INTEGRITY)
 479         {
 480             char *ptr;
 481             if((ptr = strstr(want_flags, "NTLMSSP_FEATURE_SIGN")) == NULL)
 482                 lstrcatA(want_flags, " NTLMSSP_FEATURE_SIGN");
 483         }
 484         if(fContextReq & ISC_REQ_MUTUAL_AUTH)
 485             ctxt_attr |= ISC_RET_MUTUAL_AUTH;
 486         if(fContextReq & ISC_REQ_REPLAY_DETECT)
 487         {
 488             char *ptr;
 489             if((ptr = strstr(want_flags, "NTLMSSP_FEATURE_SIGN")) == NULL)
 490                 lstrcatA(want_flags, " NTLMSSP_FEATURE_SIGN");
 491         }
 492         if(fContextReq & ISC_REQ_SEQUENCE_DETECT)
 493         {
 494             char *ptr;
 495             if((ptr = strstr(want_flags, "NTLMSSP_FEATURE_SIGN")) == NULL)
 496                 lstrcatA(want_flags, " NTLMSSP_FEATURE_SIGN");
 497         }
 498         if(fContextReq & ISC_REQ_STREAM)
 499             FIXME("ISC_REQ_STREAM\n");
 500         if(fContextReq & ISC_REQ_USE_DCE_STYLE)
 501             ctxt_attr |= ISC_RET_USED_DCE_STYLE;
 502         if(fContextReq & ISC_REQ_DELEGATE)
 503             ctxt_attr |= ISC_RET_DELEGATE;
 504
 505         /* If no password is given, try to use cached credentials. Fall back to an empty
 506          * password if this failed. */
 507         if(helper->password == NULL)
 508         {
 509             lstrcpynA(buffer, "OK", max_len-1);
 510             if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
 511                 goto isc_end;
 512             /* If the helper replied with "PW", using cached credentials failed */
 513             if(!strncmp(buffer, "PW", 2))
 514             {
 515                 TRACE("Using cached credentials failed. Using empty password.\n");
 516                 lstrcpynA(buffer, "PW AA==", max_len-1);
 517             }
 518             else /* Just do a noop on the next run */
 519                 lstrcpynA(buffer, "OK", max_len-1);
 520         }
 521         else
 522         {
 523             lstrcpynA(buffer, "PW ", max_len-1);
 524             if((ret = encodeBase64((unsigned char*)helper->password,
 525                         helper->pwlen, buffer+3,
 526                         max_len-3, &buffer_len)) != SEC_E_OK)
 527             {
 528                 TRACE("Deleting password!\n");
 529                 memset(helper->password, 0, helper->pwlen);
 530                 HeapFree(GetProcessHeap(), 0, helper->password);
 531                 goto isc_end;
 532             }
 533
 534         }
 535
 536         TRACE("Sending to helper: %s\n", debugstr_a(buffer));
 537         if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
 538             goto isc_end;
 539
 540         TRACE("Helper returned %s\n", debugstr_a(buffer));
 541
 542         if(lstrlenA(want_flags) > 2)
 543         {
 544             TRACE("Want flags are %s\n", debugstr_a(want_flags));
 545             lstrcpynA(buffer, want_flags, max_len-1);
 546             if((ret = run_helper(helper, buffer, max_len, &buffer_len))
 547                     != SEC_E_OK)
 548                 goto isc_end;
 549             if(!strncmp(buffer, "BH", 2))
 550                 ERR("Helper doesn't understand new command set. Expect more things to fail.\n");
 551         }
 552
 553         lstrcpynA(buffer, "YR", max_len-1);
 554
 555         if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
 556             goto isc_end;
 557
 558         TRACE("%s\n", buffer);
 559
 560         if(strncmp(buffer, "YR ", 3) != 0)
 561         {
 562             /* Something borked */
 563             TRACE("Helper returned %c%c\n", buffer[0], buffer[1]);
 564             ret = SEC_E_INTERNAL_ERROR;
 565             goto isc_end;
 566         }
 567         if((ret = decodeBase64(buffer+3, buffer_len-3, bin,
 568                         max_len-1, &bin_len)) != SEC_E_OK)
 569             goto isc_end;
 570
 571         /* put the decoded client blob into the out buffer */
 572
 573         phNewContext->dwUpper = ctxt_attr;
 574         phNewContext->dwLower = (ULONG_PTR)helper;
 575
 576         ret = SEC_I_CONTINUE_NEEDED;
 577     }
 578     else
 579     {
 580         int input_token_idx;
 581
 582         /* handle second call here */
 583         /* encode server data to base64 */
 584         if (!pInput || ((input_token_idx = ntlm_GetTokenBufferIndex(pInput)) == -1))
 585         {
 586             ret = SEC_E_INVALID_TOKEN;
 587             goto isc_end;
 588         }
 589
 590         if(!phContext)
 591             return SEC_E_INVALID_HANDLE;
 592
 593         /* As the server side of sspi never calls this, make sure that
 594          * the handler is a client handler.
 595          */
 596         helper = (PNegoHelper)phContext->dwLower;
 597         if(helper->mode != NTLM_CLIENT)
 598         {
 599             TRACE("Helper mode = %d\n", helper->mode);
 600             return SEC_E_INVALID_HANDLE;
 601         }
 602
 603         if (!pInput->pBuffers[input_token_idx].pvBuffer)
 604         {
 605             ret = SEC_E_INTERNAL_ERROR;
 606             goto isc_end;
 607         }
 608
 609         if(pInput->pBuffers[input_token_idx].cbBuffer > max_len)
 610         {
 611             TRACE("pInput->pBuffers[%d].cbBuffer is: %ld\n",
 612                     input_token_idx,
 613                     pInput->pBuffers[input_token_idx].cbBuffer);
 614             ret = SEC_E_INVALID_TOKEN;
 615             goto isc_end;
 616         }
 617         else
 618             bin_len = pInput->pBuffers[input_token_idx].cbBuffer;
 619
 620         memcpy(bin, pInput->pBuffers[input_token_idx].pvBuffer, bin_len);
 621
 622         lstrcpynA(buffer, "TT ", max_len-1);
 623
 624         if((ret = encodeBase64(bin, bin_len, buffer+3,
 625                         max_len-3, &buffer_len)) != SEC_E_OK)
 626             goto isc_end;
 627
 628         TRACE("Server sent: %s\n", debugstr_a(buffer));
 629
 630         /* send TT base64 blob to ntlm_auth */
 631         if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
 632             goto isc_end;
 633
 634         TRACE("Helper replied: %s\n", debugstr_a(buffer));
 635
 636         if( (strncmp(buffer, "KK ", 3) != 0) &&
 637                 (strncmp(buffer, "AF ", 3) !=0))
 638         {
 639             TRACE("Helper returned %c%c\n", buffer[0], buffer[1]);
 640             ret = SEC_E_INVALID_TOKEN;
 641             goto isc_end;
 642         }
 643
 644         /* decode the blob and send it to server */
 645         if((ret = decodeBase64(buffer+3, buffer_len-3, bin, max_len,
 646                         &bin_len)) != SEC_E_OK)
 647         {
 648             goto isc_end;
 649         }
 650
 651         phNewContext->dwUpper = ctxt_attr;
 652         phNewContext->dwLower = (ULONG_PTR)helper;
 653
 654         ret = SEC_E_OK;
 655     }
 656
 657     /* put the decoded client blob into the out buffer */
 658
 659     if (!pOutput || ((token_idx = ntlm_GetTokenBufferIndex(pOutput)) == -1))
 660     {
 661         TRACE("no SECBUFFER_TOKEN buffer could be found\n");
 662         ret = SEC_E_BUFFER_TOO_SMALL;
 663         goto isc_end;
 664     }
 665
 666     if (fContextReq & ISC_REQ_ALLOCATE_MEMORY)
 667     {
 668         pOutput->pBuffers[token_idx].pvBuffer = SECUR32_ALLOC(bin_len);
 669         pOutput->pBuffers[token_idx].cbBuffer = bin_len;
 670     }
 671     else if (pOutput->pBuffers[token_idx].cbBuffer < bin_len)
 672     {
 673         TRACE("out buffer is NULL or has not enough space\n");
 674         ret = SEC_E_BUFFER_TOO_SMALL;
 675         goto isc_end;
 676     }
 677
 678     if (!pOutput->pBuffers[token_idx].pvBuffer)
 679     {
 680         TRACE("out buffer is NULL\n");
 681         ret = SEC_E_INTERNAL_ERROR;
 682         goto isc_end;
 683     }
 684
 685     pOutput->pBuffers[token_idx].cbBuffer = bin_len;
 686     memcpy(pOutput->pBuffers[token_idx].pvBuffer, bin, bin_len);
 687
 688     if(ret == SEC_E_OK)
 689     {
 690         TRACE("Getting negotiated flags\n");
 691         lstrcpynA(buffer, "GF", max_len - 1);
 692         if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
 693             goto isc_end;
 694
 695         if(buffer_len < 3)
 696         {
 697             TRACE("No flags negotiated.\n");
 698             helper->neg_flags = 0l;
 699         }
 700         else
 701         {
 702             TRACE("Negotiated %s\n", debugstr_a(buffer));
 703             sscanf(buffer + 3, "%lx", &(helper->neg_flags));
 704             TRACE("Stored 0x%08lx as flags\n", helper->neg_flags);
 705         }
 706
 707         TRACE("Getting session key\n");
 708         lstrcpynA(buffer, "GK", max_len - 1);
 709         if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
 710             goto isc_end;
 711
 712         if(strncmp(buffer, "BH", 2) == 0)
 713         {
 714             TRACE("No key negotiated.\n");
 715             helper->valid_session_key = FALSE;
 716             helper->session_key = HeapAlloc(GetProcessHeap(), 0, 16);
 717             /*Generate the dummy session key = MD4(MD4(password))*/
 718             if(helper->password)
 719             {
 720                 SEC_WCHAR *unicode_password;
 721                 int passwd_lenW;
 722
 723                 TRACE("Converting password to unicode.\n");
 724                 passwd_lenW = MultiByteToWideChar(CP_ACP, 0,
 725                         (LPCSTR)helper->password, helper->pwlen,
 726                         NULL, 0);
 727                 unicode_password = HeapAlloc(GetProcessHeap(), 0,
 728                         passwd_lenW * sizeof(SEC_WCHAR));
 729                 MultiByteToWideChar(CP_ACP, 0, (LPCSTR)helper->password,
 730                         helper->pwlen, unicode_password, passwd_lenW);
 731
 732                 SECUR32_CreateNTLMv1SessionKey((PBYTE)unicode_password,
 733                         passwd_lenW * sizeof(SEC_WCHAR), helper->session_key);
 734
 735                 HeapFree(GetProcessHeap(), 0, unicode_password);
 736             }
 737             else
 738                 memset(helper->session_key, 0, 16);
 739         }
 740         else if(strncmp(buffer, "GK ", 3) == 0)
 741         {
 742             if((ret = decodeBase64(buffer+3, buffer_len-3, bin, max_len,
 743                             &bin_len)) != SEC_E_OK)
 744             {
 745                 TRACE("Failed to decode session key\n");
 746             }
 747             TRACE("Session key is %s\n", debugstr_a(buffer+3));
 748             helper->valid_session_key = TRUE;
 749             helper->session_key = HeapAlloc(GetProcessHeap(), 0, bin_len);
 750             if(!helper->session_key)
 751             {
 752                 TRACE("Failed to allocate memory for session key\n");
 753                 ret = SEC_E_INTERNAL_ERROR;
 754                 goto isc_end;
 755             }
 756             memcpy(helper->session_key, bin, bin_len);
 757         }
 758
 759         helper->crypt.ntlm.a4i = SECUR32_arc4Alloc();
 760         SECUR32_arc4Init(helper->crypt.ntlm.a4i, helper->session_key, 16);
 761         helper->crypt.ntlm.seq_num = 0l;
 762         SECUR32_CreateNTLMv2SubKeys(helper);
 763         helper->crypt.ntlm2.send_a4i = SECUR32_arc4Alloc();
 764         helper->crypt.ntlm2.recv_a4i = SECUR32_arc4Alloc();
 765         SECUR32_arc4Init(helper->crypt.ntlm2.send_a4i,
 766                 (BYTE *)helper->crypt.ntlm2.send_seal_key, 16);
 767         SECUR32_arc4Init(helper->crypt.ntlm2.recv_a4i,
 768                (BYTE *)helper->crypt.ntlm2.recv_seal_key, 16);
 769         helper->crypt.ntlm2.send_seq_no = 0l;
 770         helper->crypt.ntlm2.recv_seq_no = 0l;
 771     }
 772
 773     if(ret != SEC_I_CONTINUE_NEEDED)
 774     {
 775         TRACE("Deleting password!\n");
 776         if(helper->password)
 777             memset(helper->password, 0, helper->pwlen);
 778         HeapFree(GetProcessHeap(), 0, helper->password);
 779     }
 780 isc_end:
 781     HeapFree(GetProcessHeap(), 0, want_flags);
 782     HeapFree(GetProcessHeap(), 0, buffer);
 783     HeapFree(GetProcessHeap(), 0, bin);
 784     return ret;
 785 }
 786
 787 /***********************************************************************
 788  *              InitializeSecurityContextA
 789  */
 790 static SECURITY_STATUS SEC_ENTRY ntlm_InitializeSecurityContextA(
 791  PCredHandle phCredential, PCtxtHandle phContext, SEC_CHAR *pszTargetName,
 792  ULONG fContextReq, ULONG Reserved1, ULONG TargetDataRep,
 793  PSecBufferDesc pInput,ULONG Reserved2, PCtxtHandle phNewContext,
 794  PSecBufferDesc pOutput, ULONG *pfContextAttr, PTimeStamp ptsExpiry)
 795 {
 796     SECURITY_STATUS ret;
 797     SEC_WCHAR *target = NULL;
 798
 799     TRACE("%p %p %s %d %d %d %p %d %p %p %p %p\n", phCredential, phContext,
 800      debugstr_a(pszTargetName), fContextReq, Reserved1, TargetDataRep, pInput,
 801      Reserved1, phNewContext, pOutput, pfContextAttr, ptsExpiry);
 802
 803     if(pszTargetName != NULL)
 804     {
 805         int target_size = MultiByteToWideChar(CP_ACP, 0, pszTargetName,
 806             strlen(pszTargetName)+1, NULL, 0);
 807         target = HeapAlloc(GetProcessHeap(), 0, target_size *
 808                 sizeof(SEC_WCHAR));
 809         MultiByteToWideChar(CP_ACP, 0, pszTargetName, strlen(pszTargetName)+1,
 810             target, target_size);
 811     }
 812
 813     ret = ntlm_InitializeSecurityContextW(phCredential, phContext, target,
 814             fContextReq, Reserved1, TargetDataRep, pInput, Reserved2,
 815             phNewContext, pOutput, pfContextAttr, ptsExpiry);
 816
 817     HeapFree(GetProcessHeap(), 0, target);
 818     return ret;
 819 }
 820
 821 /***********************************************************************
 822  *              AcceptSecurityContext
 823  */
 824 static SECURITY_STATUS SEC_ENTRY ntlm_AcceptSecurityContext(
 825  PCredHandle phCredential, PCtxtHandle phContext, PSecBufferDesc pInput,
 826  ULONG fContextReq, ULONG TargetDataRep, PCtxtHandle phNewContext,
 827  PSecBufferDesc pOutput, ULONG *pfContextAttr, PTimeStamp ptsExpiry)
 828 {
 829     SECURITY_STATUS ret;
 830     char *buffer, *want_flags = NULL;
 831     PBYTE bin;
 832     int buffer_len, bin_len, max_len = NTLM_MAX_BUF;
 833     ULONG ctxt_attr = 0;
 834     PNegoHelper helper;
 835
 836     TRACE("%p %p %p %d %d %p %p %p %p\n", phCredential, phContext, pInput,
 837      fContextReq, TargetDataRep, phNewContext, pOutput, pfContextAttr,
 838      ptsExpiry);
 839
 840     if (!phCredential)
 841         return SEC_E_INVALID_HANDLE;
 842
 843     helper = (PNegoHelper)phCredential->dwLower;
 844
 845     buffer = HeapAlloc(GetProcessHeap(), 0, sizeof(char) * NTLM_MAX_BUF);
 846     bin    = HeapAlloc(GetProcessHeap(),0, sizeof(BYTE) * NTLM_MAX_BUF);
 847
 848     if(helper->mode != NTLM_SERVER)
 849     {
 850         ret = SEC_E_INVALID_HANDLE;
 851         goto asc_end;
 852     }
 853
 854     if(TargetDataRep == SECURITY_NETWORK_DREP){
 855         TRACE("Using SECURITY_NETWORK_DREP\n");
 856     }
 857
 858     if(phContext == NULL)
 859     {
 860         /* This is the first call to AcceptSecurityHandle */
 861         if(pInput == NULL)
 862         {
 863             ret = SEC_E_INCOMPLETE_MESSAGE;
 864             goto asc_end;
 865         }
 866
 867         if(pInput->cBuffers < 1)
 868         {
 869             ret = SEC_E_INCOMPLETE_MESSAGE;
 870             goto asc_end;
 871         }
 872
 873         if(pInput->pBuffers[0].cbBuffer > max_len)
 874         {
 875             ret = SEC_E_INVALID_TOKEN;
 876             goto asc_end;
 877         }
 878         else
 879             bin_len = pInput->pBuffers[0].cbBuffer;
 880
 881         /* Handle all the flags */
 882         want_flags = HeapAlloc(GetProcessHeap(), 0, 73);
 883         if(want_flags == NULL)
 884         {
 885             TRACE("Failed to allocate memory for the want_flags!\n");
 886             ret = SEC_E_INSUFFICIENT_MEMORY;
 887             goto asc_end;
 888         }
 889         lstrcpyA(want_flags, "SF");
 890         if(fContextReq & ASC_REQ_ALLOCATE_MEMORY)
 891         {
 892             FIXME("ASC_REQ_ALLOCATE_MEMORY stub\n");
 893         }
 894         if(fContextReq & ASC_REQ_CONFIDENTIALITY)
 895         {
 896             lstrcatA(want_flags, " NTLMSSP_FEATURE_SEAL");
 897         }
 898         if(fContextReq & ASC_REQ_CONNECTION)
 899         {
 900             /* This is default, so we'll enable it */
 901             lstrcatA(want_flags, " NTLMSSP_FEATURE_SESSION_KEY");
 902             ctxt_attr |= ASC_RET_CONNECTION;
 903         }
 904         if(fContextReq & ASC_REQ_EXTENDED_ERROR)
 905         {
 906             FIXME("ASC_REQ_EXTENDED_ERROR stub\n");
 907         }
 908         if(fContextReq & ASC_REQ_INTEGRITY)
 909         {
 910             lstrcatA(want_flags, " NTLMSSP_FEATURE_SIGN");
 911         }
 912         if(fContextReq & ASC_REQ_MUTUAL_AUTH)
 913         {
 914             FIXME("ASC_REQ_MUTUAL_AUTH stub\n");
 915         }
 916         if(fContextReq & ASC_REQ_REPLAY_DETECT)
 917         {
 918             FIXME("ASC_REQ_REPLAY_DETECT stub\n");
 919         }
 920         if(fContextReq & ISC_REQ_SEQUENCE_DETECT)
 921         {
 922             FIXME("ASC_REQ_SEQUENCE_DETECT stub\n");
 923         }
 924         if(fContextReq & ISC_REQ_STREAM)
 925         {
 926             FIXME("ASC_REQ_STREAM stub\n");
 927         }
 928         /* Done with the flags */
 929
 930         if(lstrlenA(want_flags) > 3)
 931         {
 932             TRACE("Server set want_flags: %s\n", debugstr_a(want_flags));
 933             lstrcpynA(buffer, want_flags, max_len - 1);
 934             if((ret = run_helper(helper, buffer, max_len, &buffer_len)) !=
 935                     SEC_E_OK)
 936                 goto asc_end;
 937             if(!strncmp(buffer, "BH", 2))
 938                 TRACE("Helper doesn't understand new command set\n");
 939         }
 940
 941         /* This is the YR request from the client, encode to base64 */
 942
 943         memcpy(bin, pInput->pBuffers[0].pvBuffer, bin_len);
 944
 945         lstrcpynA(buffer, "YR ", max_len-1);
 946
 947         if((ret = encodeBase64(bin, bin_len, buffer+3, max_len-3,
 948                     &buffer_len)) != SEC_E_OK)
 949         {
 950             goto asc_end;
 951         }
 952
 953         TRACE("Client sent: %s\n", debugstr_a(buffer));
 954
 955         if((ret = run_helper(helper, buffer, max_len, &buffer_len)) !=
 956                     SEC_E_OK)
 957         {
 958             goto asc_end;
 959         }
 960
 961         TRACE("Reply from ntlm_auth: %s\n", debugstr_a(buffer));
 962         /* The expected answer is TT <base64 blob> */
 963
 964         if(strncmp(buffer, "TT ", 3) != 0)
 965         {
 966             ret = SEC_E_INTERNAL_ERROR;
 967             goto asc_end;
 968         }
 969
 970         if((ret = decodeBase64(buffer+3, buffer_len-3, bin, max_len,
 971                         &bin_len)) != SEC_E_OK)
 972         {
 973             goto asc_end;
 974         }
 975
 976         /* send this to the client */
 977         if(pOutput == NULL)
 978         {
 979             ret = SEC_E_INSUFFICIENT_MEMORY;
 980             goto asc_end;
 981         }
 982
 983         if(pOutput->cBuffers < 1)
 984         {
 985             ret = SEC_E_INSUFFICIENT_MEMORY;
 986             goto asc_end;
 987         }
 988
 989         pOutput->pBuffers[0].cbBuffer = bin_len;
 990         pOutput->pBuffers[0].BufferType = SECBUFFER_DATA;
 991         memcpy(pOutput->pBuffers[0].pvBuffer, bin, bin_len);
 992         ret = SEC_I_CONTINUE_NEEDED;
 993
 994     }
 995     else
 996     {
 997         /* we expect a KK request from client */
 998         if(pInput == NULL)
 999         {
1000             ret = SEC_E_INCOMPLETE_MESSAGE;
1001             goto asc_end;
1002         }
1003
1004         if(pInput->cBuffers < 1)
1005         {
1006             ret = SEC_E_INCOMPLETE_MESSAGE;
1007             goto asc_end;
1008         }
1009
1010         if(pInput->pBuffers[0].cbBuffer > max_len)
1011         {
1012             ret = SEC_E_INVALID_TOKEN;
1013             goto asc_end;
1014         }
1015         else
1016             bin_len = pInput->pBuffers[0].cbBuffer;
1017
1018         memcpy(bin, pInput->pBuffers[0].pvBuffer, bin_len);
1019
1020         lstrcpynA(buffer, "KK ", max_len-1);
1021
1022         if((ret = encodeBase64(bin, bin_len, buffer+3, max_len-3,
1023                     &buffer_len)) != SEC_E_OK)
1024         {
1025             goto asc_end;
1026         }
1027
1028         TRACE("Client sent: %s\n", debugstr_a(buffer));
1029
1030         if((ret = run_helper(helper, buffer, max_len, &buffer_len)) !=
1031                     SEC_E_OK)
1032         {
1033             goto asc_end;
1034         }
1035
1036         TRACE("Reply from ntlm_auth: %s\n", debugstr_a(buffer));
1037
1038         if(strncmp(buffer, "AF ", 3) != 0)
1039         {
1040             if(strncmp(buffer, "NA ", 3) == 0)
1041             {
1042                 ret = SEC_E_LOGON_DENIED;
1043                 goto asc_end;
1044             }
1045             else
1046             {
1047                 ret = SEC_E_INTERNAL_ERROR;
1048                 goto asc_end;
1049             }
1050         }
1051         pOutput->pBuffers[0].cbBuffer = 0;
1052         ret = SEC_E_OK;
1053
1054         TRACE("Getting negotiated flags\n");
1055         lstrcpynA(buffer, "GF", max_len - 1);
1056         if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
1057             goto asc_end;
1058
1059         if(buffer_len < 3)
1060         {
1061             TRACE("No flags negotiated, or helper does not support GF command\n");
1062         }
1063         else
1064         {
1065             TRACE("Negotiated %s\n", debugstr_a(buffer));
1066             sscanf(buffer + 3, "%lx", &(helper->neg_flags));
1067             TRACE("Stored 0x%08lx as flags\n", helper->neg_flags);
1068         }
1069
1070         TRACE("Getting session key\n");
1071         lstrcpynA(buffer, "GK", max_len - 1);
1072         if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
1073             goto asc_end;
1074
1075         if(buffer_len < 3)
1076             TRACE("Helper does not support GK command\n");
1077         else
1078         {
1079             if(strncmp(buffer, "BH ", 3) == 0)
1080             {
1081                 TRACE("Helper sent %s\n", debugstr_a(buffer+3));
1082                 helper->valid_session_key = FALSE;
1083                 helper->session_key = HeapAlloc(GetProcessHeap(), 0, 16);
1084                 /*FIXME: Generate the dummy session key = MD4(MD4(password))*/
1085                 memset(helper->session_key, 0 , 16);
1086             }
1087             else if(strncmp(buffer, "GK ", 3) == 0)
1088             {
1089                 if((ret = decodeBase64(buffer+3, buffer_len-3, bin, max_len,
1090                                 &bin_len)) != SEC_E_OK)
1091                 {
1092                     TRACE("Failed to decode session key\n");
1093                 }
1094                 TRACE("Session key is %s\n", debugstr_a(buffer+3));
1095                 helper->valid_session_key = TRUE;
1096                 helper->session_key = HeapAlloc(GetProcessHeap(), 0, 16);
1097                 if(!helper->session_key)
1098                 {
1099                     TRACE("Failed to allocate memory for session key\n");
1100                     ret = SEC_E_INTERNAL_ERROR;
1101                     goto asc_end;
1102                 }
1103                 memcpy(helper->session_key, bin, 16);
1104             }
1105         }
1106         helper->crypt.ntlm.a4i = SECUR32_arc4Alloc();
1107         SECUR32_arc4Init(helper->crypt.ntlm.a4i, helper->session_key, 16);
1108         helper->crypt.ntlm.seq_num = 0l;
1109     }
1110
1111     phNewContext->dwUpper = ctxt_attr;
1112     phNewContext->dwLower = (ULONG_PTR)helper;
1113
1114 asc_end:
1115     HeapFree(GetProcessHeap(), 0, want_flags);
1116     HeapFree(GetProcessHeap(), 0, buffer);
1117     HeapFree(GetProcessHeap(), 0, bin);
1118     return ret;
1119 }
1120
1121 /***********************************************************************
1122  *              CompleteAuthToken
1123  */
1124 static SECURITY_STATUS SEC_ENTRY ntlm_CompleteAuthToken(PCtxtHandle phContext,
1125  PSecBufferDesc pToken)
1126 {
1127     /* We never need to call CompleteAuthToken anyway */
1128     TRACE("%p %p\n", phContext, pToken);
1129     if (!phContext)
1130         return SEC_E_INVALID_HANDLE;
1131
1132     return SEC_E_OK;
1133 }
1134
1135 /***********************************************************************
1136  *              DeleteSecurityContext
1137  */
1138 static SECURITY_STATUS SEC_ENTRY ntlm_DeleteSecurityContext(PCtxtHandle phContext)
1139 {
1140     PNegoHelper helper;
1141
1142     TRACE("%p\n", phContext);
1143     if (!phContext)
1144         return SEC_E_INVALID_HANDLE;
1145
1146     helper = (PNegoHelper)phContext->dwLower;
1147
1148     phContext->dwUpper = 0;
1149     phContext->dwLower = 0;
1150
1151     SECUR32_arc4Cleanup(helper->crypt.ntlm.a4i);
1152     HeapFree(GetProcessHeap(), 0, helper->session_key);
1153     helper->valid_session_key = FALSE;
1154     SECUR32_arc4Cleanup(helper->crypt.ntlm2.send_a4i);
1155     SECUR32_arc4Cleanup(helper->crypt.ntlm2.recv_a4i);
1156     HeapFree(GetProcessHeap(), 0, helper->crypt.ntlm2.send_sign_key);
1157     HeapFree(GetProcessHeap(), 0, helper->crypt.ntlm2.send_seal_key);
1158     HeapFree(GetProcessHeap(), 0, helper->crypt.ntlm2.recv_sign_key);
1159     HeapFree(GetProcessHeap(), 0, helper->crypt.ntlm2.recv_seal_key);
1160
1161     return SEC_E_OK;
1162 }
1163
1164 /***********************************************************************
1165  *              QueryContextAttributesW
1166  */
1167 static SECURITY_STATUS SEC_ENTRY ntlm_QueryContextAttributesW(PCtxtHandle phContext,
1168  ULONG ulAttribute, void *pBuffer)
1169 {
1170     TRACE("%p %d %p\n", phContext, ulAttribute, pBuffer);
1171     if (!phContext)
1172         return SEC_E_INVALID_HANDLE;
1173
1174     switch(ulAttribute)
1175     {
1176 #define _x(x) case (x) : FIXME(#x" stub\n"); break
1177         _x(SECPKG_ATTR_ACCESS_TOKEN);
1178         _x(SECPKG_ATTR_AUTHORITY);
1179         _x(SECPKG_ATTR_DCE_INFO);
1180         case SECPKG_ATTR_FLAGS:
1181         {
1182             PSecPkgContext_Flags spcf = (PSecPkgContext_Flags)pBuffer;
1183             PNegoHelper helper = (PNegoHelper)phContext->dwLower;
1184
1185             spcf->Flags = 0;
1186             if(helper->neg_flags & NTLMSSP_NEGOTIATE_SIGN)
1187                 spcf->Flags |= ISC_RET_INTEGRITY;
1188             if(helper->neg_flags & NTLMSSP_NEGOTIATE_SEAL)
1189                 spcf->Flags |= ISC_RET_CONFIDENTIALITY;
1190             return SEC_E_OK;
1191         }
1192         _x(SECPKG_ATTR_KEY_INFO);
1193         _x(SECPKG_ATTR_LIFESPAN);
1194         _x(SECPKG_ATTR_NAMES);
1195         _x(SECPKG_ATTR_NATIVE_NAMES);
1196         _x(SECPKG_ATTR_NEGOTIATION_INFO);
1197         _x(SECPKG_ATTR_PACKAGE_INFO);
1198         _x(SECPKG_ATTR_PASSWORD_EXPIRY);
1199         _x(SECPKG_ATTR_SESSION_KEY);
1200         case SECPKG_ATTR_SIZES:
1201         {
1202             PSecPkgContext_Sizes spcs = (PSecPkgContext_Sizes)pBuffer;
1203             spcs->cbMaxToken = NTLM_MAX_BUF;
1204             spcs->cbMaxSignature = 16;
1205             spcs->cbBlockSize = 0;
1206             spcs->cbSecurityTrailer = 16;
1207             return SEC_E_OK;
1208         }
1209         _x(SECPKG_ATTR_STREAM_SIZES);
1210         _x(SECPKG_ATTR_TARGET_INFORMATION);
1211 #undef _x
1212         default:
1213             TRACE("Unknown value %d passed for ulAttribute\n", ulAttribute);
1214     }
1215
1216     return SEC_E_UNSUPPORTED_FUNCTION;
1217 }
1218
1219 /***********************************************************************
1220  *              QueryContextAttributesA
1221  */
1222 static SECURITY_STATUS SEC_ENTRY ntlm_QueryContextAttributesA(PCtxtHandle phContext,
1223  ULONG ulAttribute, void *pBuffer)
1224 {
1225     return ntlm_QueryContextAttributesW(phContext, ulAttribute, pBuffer);
1226 }
1227
1228 /***********************************************************************
1229  *              ImpersonateSecurityContext
1230  */
1231 static SECURITY_STATUS SEC_ENTRY ntlm_ImpersonateSecurityContext(PCtxtHandle phContext)
1232 {
1233     SECURITY_STATUS ret;
1234
1235     TRACE("%p\n", phContext);
1236     if (phContext)
1237     {
1238         ret = SEC_E_UNSUPPORTED_FUNCTION;
1239     }
1240     else
1241     {
1242         ret = SEC_E_INVALID_HANDLE;
1243     }
1244     return ret;
1245 }
1246
1247 /***********************************************************************
1248  *              RevertSecurityContext
1249  */
1250 static SECURITY_STATUS SEC_ENTRY ntlm_RevertSecurityContext(PCtxtHandle phContext)
1251 {
1252     SECURITY_STATUS ret;
1253
1254     TRACE("%p\n", phContext);
1255     if (phContext)
1256     {
1257         ret = SEC_E_UNSUPPORTED_FUNCTION;
1258     }
1259     else
1260     {
1261         ret = SEC_E_INVALID_HANDLE;
1262     }
1263     return ret;
1264 }
1265
1266 /***********************************************************************
1267  *             ntlm_CreateSignature
1268  * As both MakeSignature and VerifySignature need this, but different keys
1269  * are needed for NTLMv2, the logic goes into a helper function.
1270  * To ensure maximal reusability, we can specify the direction as NTLM_SEND for
1271  * signing/encrypting and NTLM_RECV for verfying/decrypting. When encrypting,
1272  * the signature is encrypted after the message was encrypted, so
1273  * CreateSignature shouldn't do it. In this case, encrypt_sig can be set to
1274  * false.
1275  */
1276 static SECURITY_STATUS ntlm_CreateSignature(PNegoHelper helper, PSecBufferDesc pMessage,
1277         int token_idx, SignDirection direction, BOOL encrypt_sig)
1278 {
1279     ULONG sign_version = 1;
1280     UINT i;
1281     PBYTE sig;
1282     TRACE("%p, %p, %d, %d, %d\n", helper, pMessage, token_idx, direction,
1283             encrypt_sig);
1284
1285     sig = pMessage->pBuffers[token_idx].pvBuffer;
1286
1287     if(helper->neg_flags & NTLMSSP_NEGOTIATE_NTLM2 &&
1288             helper->neg_flags & NTLMSSP_NEGOTIATE_SIGN)
1289     {
1290         BYTE digest[16];
1291         BYTE seq_no[4];
1292         HMAC_MD5_CTX hmac_md5_ctx;
1293
1294         TRACE("Signing NTLM2 style\n");
1295
1296         if(direction == NTLM_SEND)
1297         {
1298             seq_no[0] = (helper->crypt.ntlm2.send_seq_no >>  0) & 0xff;
1299             seq_no[1] = (helper->crypt.ntlm2.send_seq_no >>  8) & 0xff;
1300             seq_no[2] = (helper->crypt.ntlm2.send_seq_no >> 16) & 0xff;
1301             seq_no[3] = (helper->crypt.ntlm2.send_seq_no >> 24) & 0xff;
1302
1303             ++(helper->crypt.ntlm2.send_seq_no);
1304
1305             HMACMD5Init(&hmac_md5_ctx, helper->crypt.ntlm2.send_sign_key, 16);
1306         }
1307         else
1308         {
1309             seq_no[0] = (helper->crypt.ntlm2.recv_seq_no >>  0) & 0xff;
1310             seq_no[1] = (helper->crypt.ntlm2.recv_seq_no >>  8) & 0xff;
1311             seq_no[2] = (helper->crypt.ntlm2.recv_seq_no >> 16) & 0xff;
1312             seq_no[3] = (helper->crypt.ntlm2.recv_seq_no >> 24) & 0xff;
1313
1314             ++(helper->crypt.ntlm2.recv_seq_no);
1315
1316             HMACMD5Init(&hmac_md5_ctx, helper->crypt.ntlm2.recv_sign_key, 16);
1317         }
1318
1319         HMACMD5Update(&hmac_md5_ctx, seq_no, 4);
1320         for( i = 0; i < pMessage->cBuffers; ++i )
1321         {
1322             if(pMessage->pBuffers[i].BufferType & SECBUFFER_DATA)
1323                 HMACMD5Update(&hmac_md5_ctx, (BYTE *)pMessage->pBuffers[i].pvBuffer,
1324                         pMessage->pBuffers[i].cbBuffer);
1325         }
1326
1327         HMACMD5Final(&hmac_md5_ctx, digest);
1328
1329         if(encrypt_sig && helper->neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCHANGE)
1330         {
1331             if(direction == NTLM_SEND)
1332                 SECUR32_arc4Process(helper->crypt.ntlm2.send_a4i, digest, 8);
1333             else
1334                 SECUR32_arc4Process(helper->crypt.ntlm2.recv_a4i, digest, 8);
1335         }
1336
1337         /* The NTLM2 signature is the sign version */
1338         sig[ 0] = (sign_version >>  0) & 0xff;
1339         sig[ 1] = (sign_version >>  8) & 0xff;
1340         sig[ 2] = (sign_version >> 16) & 0xff;
1341         sig[ 3] = (sign_version >> 24) & 0xff;
1342         /* The first 8 bytes of the digest */
1343         memcpy(sig+4, digest, 8);
1344         /* And the sequence number */
1345         memcpy(sig+12, seq_no, 4);
1346
1347         pMessage->pBuffers[token_idx].cbBuffer = 16;
1348
1349         return SEC_E_OK;
1350     }
1351     if(helper->neg_flags & NTLMSSP_NEGOTIATE_SIGN)
1352     {
1353         ULONG crc = 0U;
1354         TRACE("Signing NTLM1 style\n");
1355
1356         for(i=0; i < pMessage->cBuffers; ++i)
1357         {
1358             if(pMessage->pBuffers[i].BufferType & SECBUFFER_DATA)
1359             {
1360                 crc = ComputeCrc32(pMessage->pBuffers[i].pvBuffer,
1361                     pMessage->pBuffers[i].cbBuffer, crc);
1362             }
1363         }
1364
1365         sig[ 0] = (sign_version >>  0) & 0xff;
1366         sig[ 1] = (sign_version >>  8) & 0xff;
1367         sig[ 2] = (sign_version >> 16) & 0xff;
1368         sig[ 3] = (sign_version >> 24) & 0xff;
1369         memset(sig+4, 0, 4);
1370         sig[ 8] = (crc >>  0) & 0xff;
1371         sig[ 9] = (crc >>  8) & 0xff;
1372         sig[10] = (crc >> 16) & 0xff;
1373         sig[11] = (crc >> 24) & 0xff;
1374         sig[12] = (helper->crypt.ntlm.seq_num >>  0) & 0xff;
1375         sig[13] = (helper->crypt.ntlm.seq_num >>  8) & 0xff;
1376         sig[14] = (helper->crypt.ntlm.seq_num >> 16) & 0xff;
1377         sig[15] = (helper->crypt.ntlm.seq_num >> 24) & 0xff;
1378
1379         ++(helper->crypt.ntlm.seq_num);
1380
1381         if(encrypt_sig)
1382             SECUR32_arc4Process(helper->crypt.ntlm.a4i, sig+4, 12);
1383         return SEC_E_OK;
1384     }
1385
1386     if(helper->neg_flags & NTLMSSP_NEGOTIATE_ALWAYS_SIGN || helper->neg_flags == 0)
1387     {
1388         TRACE("Creating a dummy signature.\n");
1389         /* A dummy signature is 0x01 followed by 15 bytes of 0x00 */
1390         memset(pMessage->pBuffers[token_idx].pvBuffer, 0, 16);
1391         memset(pMessage->pBuffers[token_idx].pvBuffer, 0x01, 1);
1392         pMessage->pBuffers[token_idx].cbBuffer = 16;
1393         return SEC_E_OK;
1394     }
1395
1396     return SEC_E_UNSUPPORTED_FUNCTION;
1397 }
1398
1399 /***********************************************************************
1400  *              MakeSignature
1401  */
1402 static SECURITY_STATUS SEC_ENTRY ntlm_MakeSignature(PCtxtHandle phContext, ULONG fQOP,
1403  PSecBufferDesc pMessage, ULONG MessageSeqNo)
1404 {
1405     PNegoHelper helper;
1406     int token_idx;
1407
1408     TRACE("%p %d %p %d\n", phContext, fQOP, pMessage, MessageSeqNo);
1409     if (!phContext)
1410         return SEC_E_INVALID_HANDLE;
1411
1412     if(fQOP)
1413         FIXME("Ignoring fQOP 0x%08x\n", fQOP);
1414
1415     if(MessageSeqNo)
1416         FIXME("Ignoring MessageSeqNo\n");
1417
1418     if(!pMessage || !pMessage->pBuffers || pMessage->cBuffers < 2)
1419         return SEC_E_INVALID_TOKEN;
1420
1421     /* If we didn't find a SECBUFFER_TOKEN type buffer */
1422     if((token_idx = ntlm_GetTokenBufferIndex(pMessage)) == -1)
1423         return SEC_E_INVALID_TOKEN;
1424
1425     if(pMessage->pBuffers[token_idx].cbBuffer < 16)
1426         return SEC_E_BUFFER_TOO_SMALL;
1427
1428     helper = (PNegoHelper)phContext->dwLower;
1429     TRACE("Negotiated flags are: 0x%08lx\n", helper->neg_flags);
1430
1431     return ntlm_CreateSignature(helper, pMessage, token_idx, NTLM_SEND, TRUE);
1432 }
1433
1434 /***********************************************************************
1435  *              VerifySignature
1436  */
1437 static SECURITY_STATUS SEC_ENTRY ntlm_VerifySignature(PCtxtHandle phContext,
1438  PSecBufferDesc pMessage, ULONG MessageSeqNo, PULONG pfQOP)
1439 {
1440     PNegoHelper helper;
1441     ULONG fQOP = 0;
1442     UINT i;
1443     int token_idx;
1444     SECURITY_STATUS ret;
1445     SecBufferDesc local_desc;
1446     PSecBuffer     local_buff;
1447     BYTE          local_sig[16];
1448
1449     TRACE("%p %p %d %p\n", phContext, pMessage, MessageSeqNo, pfQOP);
1450     if(!phContext)
1451         return SEC_E_INVALID_HANDLE;
1452
1453     if(!pMessage || !pMessage->pBuffers || pMessage->cBuffers < 2)
1454         return SEC_E_INVALID_TOKEN;
1455
1456     if((token_idx = ntlm_GetTokenBufferIndex(pMessage)) == -1)
1457         return SEC_E_INVALID_TOKEN;
1458
1459     if(pMessage->pBuffers[token_idx].cbBuffer < 16)
1460         return SEC_E_BUFFER_TOO_SMALL;
1461
1462     if(MessageSeqNo)
1463         FIXME("Ignoring MessageSeqNo\n");
1464
1465     helper = (PNegoHelper)phContext->dwLower;
1466     TRACE("Negotiated flags: 0x%08lx\n", helper->neg_flags);
1467
1468     local_buff = HeapAlloc(GetProcessHeap(), 0, pMessage->cBuffers * sizeof(SecBuffer));
1469
1470     local_desc.ulVersion = SECBUFFER_VERSION;
1471     local_desc.cBuffers = pMessage->cBuffers;
1472     local_desc.pBuffers = local_buff;
1473
1474     for(i=0; i < pMessage->cBuffers; ++i)
1475     {
1476         if(pMessage->pBuffers[i].BufferType == SECBUFFER_TOKEN)
1477         {
1478             local_buff[i].BufferType = SECBUFFER_TOKEN;
1479             local_buff[i].cbBuffer = 16;
1480             local_buff[i].pvBuffer = local_sig;
1481         }
1482         else
1483         {
1484             local_buff[i].BufferType = pMessage->pBuffers[i].BufferType;
1485             local_buff[i].cbBuffer = pMessage->pBuffers[i].cbBuffer;
1486             local_buff[i].pvBuffer = pMessage->pBuffers[i].pvBuffer;
1487         }
1488     }
1489
1490     if((ret = ntlm_CreateSignature(helper, &local_desc, token_idx, NTLM_RECV, TRUE)) != SEC_E_OK)
1491         return ret;
1492
1493     if(memcmp(((PBYTE)local_buff[token_idx].pvBuffer) + 8,
1494                 ((PBYTE)pMessage->pBuffers[token_idx].pvBuffer) + 8, 8))
1495         ret = SEC_E_MESSAGE_ALTERED;
1496     else
1497         ret = SEC_E_OK;
1498
1499     HeapFree(GetProcessHeap(), 0, local_buff);
1500     pfQOP = &fQOP;
1501
1502     return ret;
1503
1504 }
1505
1506 /***********************************************************************
1507  *             FreeCredentialsHandle
1508  */
1509 static SECURITY_STATUS SEC_ENTRY ntlm_FreeCredentialsHandle(
1510         PCredHandle phCredential)
1511 {
1512     SECURITY_STATUS ret;
1513
1514     if(phCredential){
1515         PNegoHelper helper = (PNegoHelper) phCredential->dwLower;
1516         phCredential->dwUpper = 0;
1517         phCredential->dwLower = 0;
1518         cleanup_helper(helper);
1519         ret = SEC_E_OK;
1520     }
1521     else
1522         ret = SEC_E_OK;
1523
1524     return ret;
1525 }
1526
1527 /***********************************************************************
1528  *             EncryptMessage
1529  */
1530 static SECURITY_STATUS SEC_ENTRY ntlm_EncryptMessage(PCtxtHandle phContext,
1531         ULONG fQOP, PSecBufferDesc pMessage, ULONG MessageSeqNo)
1532 {
1533     PNegoHelper helper;
1534     int token_idx;
1535
1536     TRACE("(%p %d %p %d)\n", phContext, fQOP, pMessage, MessageSeqNo);
1537
1538     if(!phContext)
1539         return SEC_E_INVALID_HANDLE;
1540
1541     if(fQOP)
1542         FIXME("Ignoring fQOP\n");
1543
1544     if(MessageSeqNo)
1545         FIXME("Ignoring MessageSeqNo\n");
1546
1547     if(!pMessage || !pMessage->pBuffers || pMessage->cBuffers < 2)
1548         return SEC_E_INVALID_TOKEN;
1549
1550     if((token_idx = ntlm_GetTokenBufferIndex(pMessage)) == -1)
1551         return SEC_E_INVALID_TOKEN;
1552
1553     if(pMessage->pBuffers[token_idx].cbBuffer < 16)
1554         return SEC_E_BUFFER_TOO_SMALL;
1555
1556     helper = (PNegoHelper) phContext->dwLower;
1557
1558     if(helper->neg_flags & NTLMSSP_NEGOTIATE_NTLM2 &&
1559             helper->neg_flags & NTLMSSP_NEGOTIATE_SEAL)
1560     {
1561         ntlm_CreateSignature(helper, pMessage, token_idx, NTLM_SEND, FALSE);
1562         SECUR32_arc4Process(helper->crypt.ntlm2.send_a4i,
1563                 (BYTE *)pMessage->pBuffers[1].pvBuffer,
1564                 pMessage->pBuffers[1].cbBuffer);
1565
1566         if(helper->neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCHANGE)
1567             SECUR32_arc4Process(helper->crypt.ntlm2.send_a4i,
1568                     ((BYTE *)pMessage->pBuffers[token_idx].pvBuffer)+4, 8);
1569
1570
1571         return SEC_E_OK;
1572     }
1573     else
1574     {
1575         PBYTE sig;
1576         ULONG save_flags;
1577
1578         /* EncryptMessage always produces real signatures, so make sure
1579          * NTLMSSP_NEGOTIATE_SIGN is set*/
1580         save_flags = helper->neg_flags;
1581         helper->neg_flags |= NTLMSSP_NEGOTIATE_SIGN;
1582         ntlm_CreateSignature(helper, pMessage, token_idx, NTLM_SEND, FALSE);
1583         helper->neg_flags = save_flags;
1584
1585         sig = pMessage->pBuffers[token_idx].pvBuffer;
1586
1587         SECUR32_arc4Process(helper->crypt.ntlm.a4i, pMessage->pBuffers[1].pvBuffer,
1588                 pMessage->pBuffers[1].cbBuffer);
1589         SECUR32_arc4Process(helper->crypt.ntlm.a4i, sig+4, 12);
1590
1591         if(helper->neg_flags & NTLMSSP_NEGOTIATE_ALWAYS_SIGN || helper->neg_flags == 0)
1592             memset(sig+4, 0, 4);
1593
1594     }
1595
1596     return SEC_E_OK;
1597 }
1598
1599 /***********************************************************************
1600  *             DecryptMessage
1601  */
1602 static SECURITY_STATUS SEC_ENTRY ntlm_DecryptMessage(PCtxtHandle phContext,
1603         PSecBufferDesc pMessage, ULONG MessageSeqNo, PULONG pfQOP)
1604 {
1605     SECURITY_STATUS ret;
1606     ULONG ntlmssp_flags_save;
1607     PNegoHelper helper;
1608     int token_idx;
1609     TRACE("(%p %p %d %p)\n", phContext, pMessage, MessageSeqNo, pfQOP);
1610
1611     if(!phContext)
1612         return SEC_E_INVALID_HANDLE;
1613
1614     if(MessageSeqNo)
1615         FIXME("Ignoring MessageSeqNo\n");
1616
1617     if(!pMessage || !pMessage->pBuffers || pMessage->cBuffers < 2)
1618         return SEC_E_INVALID_TOKEN;
1619
1620     if((token_idx = ntlm_GetTokenBufferIndex(pMessage)) == -1)
1621         return SEC_E_INVALID_TOKEN;
1622
1623     if(pMessage->pBuffers[token_idx].cbBuffer < 16)
1624         return SEC_E_BUFFER_TOO_SMALL;
1625
1626     helper = (PNegoHelper) phContext->dwLower;
1627
1628     if(helper->neg_flags & NTLMSSP_NEGOTIATE_NTLM2 && helper->neg_flags & NTLMSSP_NEGOTIATE_SEAL)
1629     {
1630         SECUR32_arc4Process(helper->crypt.ntlm2.recv_a4i,
1631                 pMessage->pBuffers[1].pvBuffer, pMessage->pBuffers[1].cbBuffer);
1632     }
1633     else
1634     {
1635         SECUR32_arc4Process(helper->crypt.ntlm.a4i,
1636                 pMessage->pBuffers[1].pvBuffer, pMessage->pBuffers[1].cbBuffer);
1637     }
1638
1639     /* Make sure we use a session key for the signature check, EncryptMessage
1640      * always does that, even in the dummy case */
1641     ntlmssp_flags_save = helper->neg_flags;
1642
1643     helper->neg_flags |= NTLMSSP_NEGOTIATE_SIGN;
1644     ret = ntlm_VerifySignature(phContext, pMessage, MessageSeqNo, pfQOP);
1645
1646     helper->neg_flags = ntlmssp_flags_save;
1647
1648     return ret;
1649 }
1650
1651 static const SecurityFunctionTableA ntlmTableA = {
1652     1,
1653     NULL,   /* EnumerateSecurityPackagesA */
1654     ntlm_QueryCredentialsAttributesA,   /* QueryCredentialsAttributesA */
1655     ntlm_AcquireCredentialsHandleA,     /* AcquireCredentialsHandleA */
1656     ntlm_FreeCredentialsHandle,         /* FreeCredentialsHandle */
1657     NULL,   /* Reserved2 */
1658     ntlm_InitializeSecurityContextA,    /* InitializeSecurityContextA */
1659     ntlm_AcceptSecurityContext,         /* AcceptSecurityContext */
1660     ntlm_CompleteAuthToken,             /* CompleteAuthToken */
1661     ntlm_DeleteSecurityContext,         /* DeleteSecurityContext */
1662     NULL,  /* ApplyControlToken */
1663     ntlm_QueryContextAttributesA,       /* QueryContextAttributesA */
1664     ntlm_ImpersonateSecurityContext,    /* ImpersonateSecurityContext */
1665     ntlm_RevertSecurityContext,         /* RevertSecurityContext */
1666     ntlm_MakeSignature,                 /* MakeSignature */
1667     ntlm_VerifySignature,               /* VerifySignature */
1668     FreeContextBuffer,                  /* FreeContextBuffer */
1669     NULL,   /* QuerySecurityPackageInfoA */
1670     NULL,   /* Reserved3 */
1671     NULL,   /* Reserved4 */
1672     NULL,   /* ExportSecurityContext */
1673     NULL,   /* ImportSecurityContextA */
1674     NULL,   /* AddCredentialsA */
1675     NULL,   /* Reserved8 */
1676     NULL,   /* QuerySecurityContextToken */
1677     ntlm_EncryptMessage,                /* EncryptMessage */
1678     ntlm_DecryptMessage,                /* DecryptMessage */
1679     NULL,   /* SetContextAttributesA */
1680 };
1681
1682 static const SecurityFunctionTableW ntlmTableW = {
1683     1,
1684     NULL,   /* EnumerateSecurityPackagesW */
1685     ntlm_QueryCredentialsAttributesW,   /* QueryCredentialsAttributesW */
1686     ntlm_AcquireCredentialsHandleW,     /* AcquireCredentialsHandleW */
1687     ntlm_FreeCredentialsHandle,         /* FreeCredentialsHandle */
1688     NULL,   /* Reserved2 */
1689     ntlm_InitializeSecurityContextW,    /* InitializeSecurityContextW */
1690     ntlm_AcceptSecurityContext,         /* AcceptSecurityContext */
1691     ntlm_CompleteAuthToken,             /* CompleteAuthToken */
1692     ntlm_DeleteSecurityContext,         /* DeleteSecurityContext */
1693     NULL,  /* ApplyControlToken */
1694     ntlm_QueryContextAttributesW,       /* QueryContextAttributesW */
1695     ntlm_ImpersonateSecurityContext,    /* ImpersonateSecurityContext */
1696     ntlm_RevertSecurityContext,         /* RevertSecurityContext */
1697     ntlm_MakeSignature,                 /* MakeSignature */
1698     ntlm_VerifySignature,               /* VerifySignature */
1699     FreeContextBuffer,                  /* FreeContextBuffer */
1700     NULL,   /* QuerySecurityPackageInfoW */
1701     NULL,   /* Reserved3 */
1702     NULL,   /* Reserved4 */
1703     NULL,   /* ExportSecurityContext */
1704     NULL,   /* ImportSecurityContextW */
1705     NULL,   /* AddCredentialsW */
1706     NULL,   /* Reserved8 */
1707     NULL,   /* QuerySecurityContextToken */
1708     ntlm_EncryptMessage,                /* EncryptMessage */
1709     ntlm_DecryptMessage,                /* DecryptMessage */
1710     NULL,   /* SetContextAttributesW */
1711 };
1712
1713 #define NTLM_COMMENT \
1714    { 'N', 'T', 'L', 'M', ' ', \
1715      'S', 'e', 'c', 'u', 'r', 'i', 't', 'y', ' ', \
1716      'P', 'a', 'c', 'k', 'a', 'g', 'e', 0}
1717
1718 static CHAR ntlm_comment_A[] = NTLM_COMMENT;
1719 static WCHAR ntlm_comment_W[] = NTLM_COMMENT;
1720
1721 #define NTLM_NAME {'N', 'T', 'L', 'M', 0}
1722
1723 static char ntlm_name_A[] = NTLM_NAME;
1724 static WCHAR ntlm_name_W[] = NTLM_NAME;
1725
1726 /* According to Windows, NTLM has the following capabilities.  */
1727 #define CAPS ( \
1728         SECPKG_FLAG_INTEGRITY | \
1729         SECPKG_FLAG_PRIVACY | \
1730         SECPKG_FLAG_TOKEN_ONLY | \
1731         SECPKG_FLAG_CONNECTION | \
1732         SECPKG_FLAG_MULTI_REQUIRED | \
1733         SECPKG_FLAG_IMPERSONATION | \
1734         SECPKG_FLAG_ACCEPT_WIN32_NAME | \
1735         SECPKG_FLAG_READONLY_WITH_CHECKSUM)
1736
1737 static const SecPkgInfoW infoW = {
1738     CAPS,
1739     1,
1740     RPC_C_AUTHN_WINNT,
1741     NTLM_MAX_BUF,
1742     ntlm_name_W,
1743     ntlm_comment_W
1744 };
1745
1746 static const SecPkgInfoA infoA = {
1747     CAPS,
1748     1,
1749     RPC_C_AUTHN_WINNT,
1750     NTLM_MAX_BUF,
1751     ntlm_name_A,
1752     ntlm_comment_A
1753 };
1754
1755 void SECUR32_initNTLMSP(void)
1756 {
1757     SECURITY_STATUS ret;
1758     PNegoHelper helper;
1759     static CHAR version[] = "--version";
1760
1761     SEC_CHAR *args[] = {
1762         ntlm_auth,
1763         version,
1764         NULL };
1765
1766     if((ret = fork_helper(&helper, ntlm_auth, args)) != SEC_E_OK)
1767     {
1768         /* Cheat and allocate a helper anyway, so cleanup later will work. */
1769         helper = HeapAlloc(GetProcessHeap(),0, sizeof(PNegoHelper));
1770         helper->major = helper->minor = helper->micro = -1;
1771     }
1772     else
1773         check_version(helper);
1774
1775     if( (helper->major >  MIN_NTLM_AUTH_MAJOR_VERSION) ||
1776         (helper->major == MIN_NTLM_AUTH_MAJOR_VERSION  &&
1777          helper->minor >  MIN_NTLM_AUTH_MINOR_VERSION) ||
1778         (helper->major == MIN_NTLM_AUTH_MAJOR_VERSION  &&
1779          helper->minor == MIN_NTLM_AUTH_MINOR_VERSION  &&
1780          helper->micro >= MIN_NTLM_AUTH_MICRO_VERSION) )
1781     {
1782         SecureProvider *provider = SECUR32_addProvider(&ntlmTableA, &ntlmTableW, NULL);
1783         SECUR32_addPackages(provider, 1L, &infoA, &infoW);
1784     }
1785     else
1786     {
1787         ERR("%s was not found or is outdated. "
1788             "Make sure that ntlm_auth >= %d.%d.%d is in your path.\n",
1789             ntlm_auth,
1790             MIN_NTLM_AUTH_MAJOR_VERSION,
1791             MIN_NTLM_AUTH_MINOR_VERSION,
1792             MIN_NTLM_AUTH_MICRO_VERSION);
1793     }
1794     cleanup_helper(helper);
1795 }