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oleaut32: Added support for loading cursors in OLEPicture.
[wine/multimedia.git] / dlls / secur32 / ntlm.c
blobd002b375d46a240d796e313d3748b94e4d36c555
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 "wincred.h"
28 #include "rpc.h"
29 #include "sspi.h"
30 #include "lm.h"
31 #include "secur32_priv.h"
32 #include "hmac_md5.h"
33 #include "wine/unicode.h"
34 #include "wine/debug.h"
35
36 WINE_DEFAULT_DEBUG_CHANNEL(ntlm);
37 WINE_DECLARE_DEBUG_CHANNEL(winediag);
38
39 #define NTLM_MAX_BUF 1904
40 #define MIN_NTLM_AUTH_MAJOR_VERSION 3
41 #define MIN_NTLM_AUTH_MINOR_VERSION 0
42 #define MIN_NTLM_AUTH_MICRO_VERSION 25
43
44 static CHAR ntlm_auth[] = "ntlm_auth";
45
46 typedef struct _NtlmCredentials
47 {
48 HelperMode mode;
49
50 /* these are all in the Unix codepage */
51 char *username_arg;
52 char *domain_arg;
53 char *password; /* not nul-terminated */
54 int pwlen;
55 } NtlmCredentials, *PNtlmCredentials;
56
57 /***********************************************************************
58 * QueryCredentialsAttributesA
59 */
60 static SECURITY_STATUS SEC_ENTRY ntlm_QueryCredentialsAttributesA(
61 PCredHandle phCredential, ULONG ulAttribute, PVOID pBuffer)
62 {
63 SECURITY_STATUS ret;
64
65 TRACE("(%p, %d, %p)\n", phCredential, ulAttribute, pBuffer);
66
67 if(ulAttribute == SECPKG_ATTR_NAMES)
68 {
69 FIXME("SECPKG_CRED_ATTR_NAMES: stub\n");
70 ret = SEC_E_UNSUPPORTED_FUNCTION;
71 }
72 else
73 ret = SEC_E_UNSUPPORTED_FUNCTION;
74
75 return ret;
76 }
77
78 /***********************************************************************
79 * QueryCredentialsAttributesW
80 */
81 static SECURITY_STATUS SEC_ENTRY ntlm_QueryCredentialsAttributesW(
82 PCredHandle phCredential, ULONG ulAttribute, PVOID pBuffer)
83 {
84 SECURITY_STATUS ret;
85
86 TRACE("(%p, %d, %p)\n", phCredential, ulAttribute, pBuffer);
87
88 if(ulAttribute == SECPKG_ATTR_NAMES)
89 {
90 FIXME("SECPKG_CRED_ATTR_NAMES: stub\n");
91 ret = SEC_E_UNSUPPORTED_FUNCTION;
92 }
93 else
94 ret = SEC_E_UNSUPPORTED_FUNCTION;
95
96 return ret;
97 }
98
99 static char *ntlm_GetUsernameArg(LPCWSTR userW, INT userW_length)
100 {
101 static const char username_arg[] = "--username=";
102 char *user;
103 int unixcp_size;
104
105 unixcp_size = WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS,
106 userW, userW_length, NULL, 0, NULL, NULL) + sizeof(username_arg);
107 user = HeapAlloc(GetProcessHeap(), 0, unixcp_size);
108 if (!user) return NULL;
109 memcpy(user, username_arg, sizeof(username_arg) - 1);
110 WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS, userW, userW_length,
111 user + sizeof(username_arg) - 1,
112 unixcp_size - sizeof(username_arg) + 1, NULL, NULL);
113 user[unixcp_size - 1] = '\0';
114 return user;
115 }
116
117 static char *ntlm_GetDomainArg(LPCWSTR domainW, INT domainW_length)
118 {
119 static const char domain_arg[] = "--domain=";
120 char *domain;
121 int unixcp_size;
122
123 unixcp_size = WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS,
124 domainW, domainW_length, NULL, 0, NULL, NULL) + sizeof(domain_arg);
125 domain = HeapAlloc(GetProcessHeap(), 0, unixcp_size);
126 if (!domain) return NULL;
127 memcpy(domain, domain_arg, sizeof(domain_arg) - 1);
128 WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS, domainW,
129 domainW_length, domain + sizeof(domain_arg) - 1,
130 unixcp_size - sizeof(domain) + 1, NULL, NULL);
131 domain[unixcp_size - 1] = '\0';
132 return domain;
133 }
134
135 /***********************************************************************
136 * AcquireCredentialsHandleW
137 */
138 static SECURITY_STATUS SEC_ENTRY ntlm_AcquireCredentialsHandleW(
139 SEC_WCHAR *pszPrincipal, SEC_WCHAR *pszPackage, ULONG fCredentialUse,
140 PLUID pLogonID, PVOID pAuthData, SEC_GET_KEY_FN pGetKeyFn,
141 PVOID pGetKeyArgument, PCredHandle phCredential, PTimeStamp ptsExpiry)
142 {
143 SECURITY_STATUS ret;
144 PNtlmCredentials ntlm_cred = NULL;
145 SEC_WCHAR *username = NULL, *domain = NULL;
146
147 TRACE("(%s, %s, 0x%08x, %p, %p, %p, %p, %p, %p)\n",
148 debugstr_w(pszPrincipal), debugstr_w(pszPackage), fCredentialUse,
149 pLogonID, pAuthData, pGetKeyFn, pGetKeyArgument, phCredential, ptsExpiry);
150
151 switch(fCredentialUse)
152 {
153 case SECPKG_CRED_INBOUND:
154 ntlm_cred = HeapAlloc(GetProcessHeap(), 0, sizeof(*ntlm_cred));
155 if (!ntlm_cred)
156 ret = SEC_E_INSUFFICIENT_MEMORY;
157 else
158 {
159 ntlm_cred->mode = NTLM_SERVER;
160 ntlm_cred->username_arg = NULL;
161 ntlm_cred->domain_arg = NULL;
162 ntlm_cred->password = NULL;
163 ntlm_cred->pwlen = 0;
164 phCredential->dwUpper = fCredentialUse;
165 phCredential->dwLower = (ULONG_PTR)ntlm_cred;
166 ret = SEC_E_OK;
167 }
168 break;
169 case SECPKG_CRED_OUTBOUND:
170 {
171 ntlm_cred = HeapAlloc(GetProcessHeap(), 0, sizeof(*ntlm_cred));
172 if (!ntlm_cred)
173 {
174 ret = SEC_E_INSUFFICIENT_MEMORY;
175 break;
176 }
177 ntlm_cred->mode = NTLM_CLIENT;
178 ntlm_cred->username_arg = NULL;
179 ntlm_cred->domain_arg = NULL;
180 ntlm_cred->password = NULL;
181 ntlm_cred->pwlen = 0;
182
183 if(pAuthData != NULL)
184 {
185 PSEC_WINNT_AUTH_IDENTITY_W auth_data = pAuthData;
186
187 TRACE("Username is %s\n", debugstr_wn(auth_data->User, auth_data->UserLength));
188 TRACE("Domain name is %s\n", debugstr_wn(auth_data->Domain, auth_data->DomainLength));
189
190 ntlm_cred->username_arg = ntlm_GetUsernameArg(auth_data->User, auth_data->UserLength);
191 ntlm_cred->domain_arg = ntlm_GetDomainArg(auth_data->Domain, auth_data->DomainLength);
192
193 if(auth_data->PasswordLength != 0)
194 {
195 ntlm_cred->pwlen = WideCharToMultiByte(CP_UNIXCP,
196 WC_NO_BEST_FIT_CHARS, auth_data->Password,
197 auth_data->PasswordLength, NULL, 0, NULL,
198 NULL);
199
200 ntlm_cred->password = HeapAlloc(GetProcessHeap(), 0,
201 ntlm_cred->pwlen);
202
203 WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS,
204 auth_data->Password, auth_data->PasswordLength,
205 ntlm_cred->password, ntlm_cred->pwlen, NULL, NULL);
206 }
207 }
208
209 phCredential->dwUpper = fCredentialUse;
210 phCredential->dwLower = (ULONG_PTR)ntlm_cred;
211 TRACE("ACH phCredential->dwUpper: 0x%08lx, dwLower: 0x%08lx\n",
212 phCredential->dwUpper, phCredential->dwLower);
213 ret = SEC_E_OK;
214 break;
215 }
216 case SECPKG_CRED_BOTH:
217 FIXME("AcquireCredentialsHandle: SECPKG_CRED_BOTH stub\n");
218 ret = SEC_E_UNSUPPORTED_FUNCTION;
219 phCredential = NULL;
220 break;
221 default:
222 phCredential = NULL;
223 ret = SEC_E_UNKNOWN_CREDENTIALS;
224 }
225
226 HeapFree(GetProcessHeap(), 0, username);
227 HeapFree(GetProcessHeap(), 0, domain);
228
229 return ret;
230 }
231
232 /***********************************************************************
233 * AcquireCredentialsHandleA
234 */
235 static SECURITY_STATUS SEC_ENTRY ntlm_AcquireCredentialsHandleA(
236 SEC_CHAR *pszPrincipal, SEC_CHAR *pszPackage, ULONG fCredentialUse,
237 PLUID pLogonID, PVOID pAuthData, SEC_GET_KEY_FN pGetKeyFn,
238 PVOID pGetKeyArgument, PCredHandle phCredential, PTimeStamp ptsExpiry)
239 {
240 SECURITY_STATUS ret;
241 int user_sizeW, domain_sizeW, passwd_sizeW;
242
243 SEC_WCHAR *user = NULL, *domain = NULL, *passwd = NULL, *package = NULL;
244
245 PSEC_WINNT_AUTH_IDENTITY_W pAuthDataW = NULL;
246 PSEC_WINNT_AUTH_IDENTITY_A identity = NULL;
247
248 TRACE("(%s, %s, 0x%08x, %p, %p, %p, %p, %p, %p)\n",
249 debugstr_a(pszPrincipal), debugstr_a(pszPackage), fCredentialUse,
250 pLogonID, pAuthData, pGetKeyFn, pGetKeyArgument, phCredential, ptsExpiry);
251
252 if(pszPackage != NULL)
253 {
254 int package_sizeW = MultiByteToWideChar(CP_ACP, 0, pszPackage, -1,
255 NULL, 0);
256
257 package = HeapAlloc(GetProcessHeap(), 0, package_sizeW *
258 sizeof(SEC_WCHAR));
259 MultiByteToWideChar(CP_ACP, 0, pszPackage, -1, package, package_sizeW);
260 }
261
262
263 if(pAuthData != NULL)
264 {
265 identity = pAuthData;
266
267 if(identity->Flags == SEC_WINNT_AUTH_IDENTITY_ANSI)
268 {
269 pAuthDataW = HeapAlloc(GetProcessHeap(), 0,
270 sizeof(SEC_WINNT_AUTH_IDENTITY_W));
271
272 if(identity->UserLength != 0)
273 {
274 user_sizeW = MultiByteToWideChar(CP_ACP, 0,
275 (LPCSTR)identity->User, identity->UserLength, NULL, 0);
276 user = HeapAlloc(GetProcessHeap(), 0, user_sizeW *
277 sizeof(SEC_WCHAR));
278 MultiByteToWideChar(CP_ACP, 0, (LPCSTR)identity->User,
279 identity->UserLength, user, user_sizeW);
280 }
281 else
282 {
283 user_sizeW = 0;
284 }
285
286 if(identity->DomainLength != 0)
287 {
288 domain_sizeW = MultiByteToWideChar(CP_ACP, 0,
289 (LPCSTR)identity->Domain, identity->DomainLength, NULL, 0);
290 domain = HeapAlloc(GetProcessHeap(), 0, domain_sizeW
291 * sizeof(SEC_WCHAR));
292 MultiByteToWideChar(CP_ACP, 0, (LPCSTR)identity->Domain,
293 identity->DomainLength, domain, domain_sizeW);
294 }
295 else
296 {
297 domain_sizeW = 0;
298 }
299
300 if(identity->PasswordLength != 0)
301 {
302 passwd_sizeW = MultiByteToWideChar(CP_ACP, 0,
303 (LPCSTR)identity->Password, identity->PasswordLength,
304 NULL, 0);
305 passwd = HeapAlloc(GetProcessHeap(), 0, passwd_sizeW
306 * sizeof(SEC_WCHAR));
307 MultiByteToWideChar(CP_ACP, 0, (LPCSTR)identity->Password,
308 identity->PasswordLength, passwd, passwd_sizeW);
309 }
310 else
311 {
312 passwd_sizeW = 0;
313 }
314
315 pAuthDataW->Flags = SEC_WINNT_AUTH_IDENTITY_UNICODE;
316 pAuthDataW->User = user;
317 pAuthDataW->UserLength = user_sizeW;
318 pAuthDataW->Domain = domain;
319 pAuthDataW->DomainLength = domain_sizeW;
320 pAuthDataW->Password = passwd;
321 pAuthDataW->PasswordLength = passwd_sizeW;
322 }
323 else
324 {
325 pAuthDataW = (PSEC_WINNT_AUTH_IDENTITY_W)identity;
326 }
327 }
328
329 ret = ntlm_AcquireCredentialsHandleW(NULL, package, fCredentialUse,
330 pLogonID, pAuthDataW, pGetKeyFn, pGetKeyArgument, phCredential,
331 ptsExpiry);
332
333 HeapFree(GetProcessHeap(), 0, package);
334 HeapFree(GetProcessHeap(), 0, user);
335 HeapFree(GetProcessHeap(), 0, domain);
336 HeapFree(GetProcessHeap(), 0, passwd);
337 if(pAuthDataW != (PSEC_WINNT_AUTH_IDENTITY_W)identity)
338 HeapFree(GetProcessHeap(), 0, pAuthDataW);
339
340 return ret;
341 }
342
343 /*************************************************************************
344 * ntlm_GetTokenBufferIndex
345 * Calculates the index of the secbuffer with BufferType == SECBUFFER_TOKEN
346 * Returns index if found or -1 if not found.
347 */
348 static int ntlm_GetTokenBufferIndex(PSecBufferDesc pMessage)
349 {
350 UINT i;
351
352 TRACE("%p\n", pMessage);
353
354 for( i = 0; i < pMessage->cBuffers; ++i )
355 {
356 if(pMessage->pBuffers[i].BufferType == SECBUFFER_TOKEN)
357 return i;
358 }
359
360 return -1;
361 }
362
363 /*************************************************************************
364 * ntlm_GetDataBufferIndex
365 * Calculates the index of the first secbuffer with BufferType == SECBUFFER_DATA
366 * Returns index if found or -1 if not found.
367 */
368 static int ntlm_GetDataBufferIndex(PSecBufferDesc pMessage)
369 {
370 UINT i;
371
372 TRACE("%p\n", pMessage);
373
374 for( i = 0; i < pMessage->cBuffers; ++i )
375 {
376 if(pMessage->pBuffers[i].BufferType == SECBUFFER_DATA)
377 return i;
378 }
379
380 return -1;
381 }
382
383 static BOOL ntlm_GetCachedCredential(const SEC_WCHAR *pszTargetName, PCREDENTIALW *cred)
384 {
385 LPCWSTR p;
386 LPCWSTR pszHost;
387 LPWSTR pszHostOnly;
388 BOOL ret;
389
390 if (!pszTargetName)
391 return FALSE;
392
393 /* try to get the start of the hostname from service principal name (SPN) */
394 pszHost = strchrW(pszTargetName, '/');
395 if (pszHost)
396 {
397 /* skip slash character */
398 pszHost++;
399
400 /* find end of host by detecting start of instance port or start of referrer */
401 p = strchrW(pszHost, ':');
402 if (!p)
403 p = strchrW(pszHost, '/');
404 if (!p)
405 p = pszHost + strlenW(pszHost);
406 }
407 else /* otherwise not an SPN, just a host */
408 {
409 pszHost = pszTargetName;
410 p = pszHost + strlenW(pszHost);
411 }
412
413 pszHostOnly = HeapAlloc(GetProcessHeap(), 0, (p - pszHost + 1) * sizeof(WCHAR));
414 if (!pszHostOnly)
415 return FALSE;
416
417 memcpy(pszHostOnly, pszHost, (p - pszHost) * sizeof(WCHAR));
418 pszHostOnly[p - pszHost] = '\0';
419
420 ret = CredReadW(pszHostOnly, CRED_TYPE_DOMAIN_PASSWORD, 0, cred);
421
422 HeapFree(GetProcessHeap(), 0, pszHostOnly);
423 return ret;
424 }
425
426 /***********************************************************************
427 * InitializeSecurityContextW
428 */
429 static SECURITY_STATUS SEC_ENTRY ntlm_InitializeSecurityContextW(
430 PCredHandle phCredential, PCtxtHandle phContext, SEC_WCHAR *pszTargetName,
431 ULONG fContextReq, ULONG Reserved1, ULONG TargetDataRep,
432 PSecBufferDesc pInput, ULONG Reserved2, PCtxtHandle phNewContext,
433 PSecBufferDesc pOutput, ULONG *pfContextAttr, PTimeStamp ptsExpiry)
434 {
435 SECURITY_STATUS ret;
436 PNtlmCredentials ntlm_cred = NULL;
437 PNegoHelper helper = NULL;
438 ULONG ctxt_attr = 0;
439 char* buffer, *want_flags = NULL;
440 PBYTE bin;
441 int buffer_len, bin_len, max_len = NTLM_MAX_BUF;
442 int token_idx;
443 SEC_CHAR *username = NULL;
444 SEC_CHAR *domain = NULL;
445 SEC_CHAR *password = NULL;
446
447 TRACE("%p %p %s 0x%08x %d %d %p %d %p %p %p %p\n", phCredential, phContext,
448 debugstr_w(pszTargetName), fContextReq, Reserved1, TargetDataRep, pInput,
449 Reserved1, phNewContext, pOutput, pfContextAttr, ptsExpiry);
450
451 /****************************************
452 * When communicating with the client, there can be the
453 * following reply packets:
454 * YR <base64 blob> should be sent to the server
455 * PW should be sent back to helper with
456 * base64 encoded password
457 * AF <base64 blob> client is done, blob should be
458 * sent to server with KK prefixed
459 * GF <string list> A string list of negotiated flags
460 * GK <base64 blob> base64 encoded session key
461 * BH <char reason> something broke
462 */
463 /* The squid cache size is 2010 chars, and that's what ntlm_auth uses */
464
465 if(TargetDataRep == SECURITY_NETWORK_DREP){
466 TRACE("Setting SECURITY_NETWORK_DREP\n");
467 }
468
469 buffer = HeapAlloc(GetProcessHeap(), 0, sizeof(char) * NTLM_MAX_BUF);
470 bin = HeapAlloc(GetProcessHeap(), 0, sizeof(BYTE) * NTLM_MAX_BUF);
471
472 if((phContext == NULL) && (pInput == NULL))
473 {
474 static char helper_protocol[] = "--helper-protocol=ntlmssp-client-1";
475 static CHAR credentials_argv[] = "--use-cached-creds";
476 SEC_CHAR *client_argv[5];
477 int pwlen = 0;
478
479 TRACE("First time in ISC()\n");
480
481 if(!phCredential)
482 {
483 ret = SEC_E_INVALID_HANDLE;
484 goto isc_end;
485 }
486
487 /* As the server side of sspi never calls this, make sure that
488 * the handler is a client handler.
489 */
490 ntlm_cred = (PNtlmCredentials)phCredential->dwLower;
491 if(ntlm_cred->mode != NTLM_CLIENT)
492 {
493 TRACE("Cred mode = %d\n", ntlm_cred->mode);
494 ret = SEC_E_INVALID_HANDLE;
495 goto isc_end;
496 }
497
498 client_argv[0] = ntlm_auth;
499 client_argv[1] = helper_protocol;
500 if (!ntlm_cred->username_arg && !ntlm_cred->domain_arg)
501 {
502 LPWKSTA_USER_INFO_1 ui = NULL;
503 NET_API_STATUS status;
504 PCREDENTIALW cred;
505
506 if (ntlm_GetCachedCredential(pszTargetName, &cred))
507 {
508 LPWSTR p;
509 p = strchrW(cred->UserName, '\\');
510 if (p)
511 {
512 domain = ntlm_GetDomainArg(cred->UserName, p - cred->UserName);
513 p++;
514 }
515 else
516 {
517 domain = ntlm_GetDomainArg(NULL, 0);
518 p = cred->UserName;
519 }
520
521 username = ntlm_GetUsernameArg(p, -1);
522
523 if(cred->CredentialBlobSize != 0)
524 {
525 pwlen = WideCharToMultiByte(CP_UNIXCP,
526 WC_NO_BEST_FIT_CHARS, (LPWSTR)cred->CredentialBlob,
527 cred->CredentialBlobSize / sizeof(WCHAR), NULL, 0,
528 NULL, NULL);
529
530 password = HeapAlloc(GetProcessHeap(), 0, pwlen);
531
532 WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS,
533 (LPWSTR)cred->CredentialBlob,
534 cred->CredentialBlobSize / sizeof(WCHAR),
535 password, pwlen, NULL, NULL);
536 }
537
538 CredFree(cred);
539
540 client_argv[2] = username;
541 client_argv[3] = domain;
542 client_argv[4] = NULL;
543 }
544 else
545 {
546 status = NetWkstaUserGetInfo(NULL, 1, (LPBYTE *)&ui);
547 if (status != NERR_Success || ui == NULL)
548 {
549 ret = SEC_E_NO_CREDENTIALS;
550 goto isc_end;
551 }
552 username = ntlm_GetUsernameArg(ui->wkui1_username, -1);
553 NetApiBufferFree(ui);
554
555 TRACE("using cached credentials\n");
556
557 client_argv[2] = username;
558 client_argv[3] = credentials_argv;
559 client_argv[4] = NULL;
560 }
561 }
562 else
563 {
564 client_argv[2] = ntlm_cred->username_arg;
565 client_argv[3] = ntlm_cred->domain_arg;
566 client_argv[4] = NULL;
567 }
568
569 if((ret = fork_helper(&helper, ntlm_auth, client_argv)) != SEC_E_OK)
570 goto isc_end;
571
572 helper->mode = NTLM_CLIENT;
573 helper->session_key = HeapAlloc(GetProcessHeap(), 0, 16);
574 if (!helper->session_key)
575 {
576 cleanup_helper(helper);
577 ret = SEC_E_INSUFFICIENT_MEMORY;
578 goto isc_end;
579 }
580
581 /* Generate the dummy session key = MD4(MD4(password))*/
582 if(password || ntlm_cred->password)
583 {
584 SEC_WCHAR *unicode_password;
585 int passwd_lenW;
586
587 TRACE("Converting password to unicode.\n");
588 passwd_lenW = MultiByteToWideChar(CP_ACP, 0,
589 password ? password : ntlm_cred->password,
590 password ? pwlen : ntlm_cred->pwlen,
591 NULL, 0);
592 unicode_password = HeapAlloc(GetProcessHeap(), 0,
593 passwd_lenW * sizeof(SEC_WCHAR));
594 MultiByteToWideChar(CP_ACP, 0, password ? password : ntlm_cred->password,
595 password ? pwlen : ntlm_cred->pwlen, unicode_password, passwd_lenW);
596
597 SECUR32_CreateNTLM1SessionKey((PBYTE)unicode_password,
598 passwd_lenW * sizeof(SEC_WCHAR), helper->session_key);
599
600 HeapFree(GetProcessHeap(), 0, unicode_password);
601 }
602 else
603 memset(helper->session_key, 0, 16);
604
605 /* Allocate space for a maximal string of
606 * "SF NTLMSSP_FEATURE_SIGN NTLMSSP_FEATURE_SEAL
607 * NTLMSSP_FEATURE_SESSION_KEY"
608 */
609 want_flags = HeapAlloc(GetProcessHeap(), 0, 73);
610 if(want_flags == NULL)
611 {
612 cleanup_helper(helper);
613 ret = SEC_E_INSUFFICIENT_MEMORY;
614 goto isc_end;
615 }
616 lstrcpyA(want_flags, "SF");
617 if(fContextReq & ISC_REQ_CONFIDENTIALITY)
618 {
619 if(strstr(want_flags, "NTLMSSP_FEATURE_SEAL") == NULL)
620 lstrcatA(want_flags, " NTLMSSP_FEATURE_SEAL");
621 }
622 if(fContextReq & ISC_REQ_CONNECTION)
623 ctxt_attr |= ISC_RET_CONNECTION;
624 if(fContextReq & ISC_REQ_EXTENDED_ERROR)
625 ctxt_attr |= ISC_RET_EXTENDED_ERROR;
626 if(fContextReq & ISC_REQ_INTEGRITY)
627 {
628 if(strstr(want_flags, "NTLMSSP_FEATURE_SIGN") == NULL)
629 lstrcatA(want_flags, " NTLMSSP_FEATURE_SIGN");
630 }
631 if(fContextReq & ISC_REQ_MUTUAL_AUTH)
632 ctxt_attr |= ISC_RET_MUTUAL_AUTH;
633 if(fContextReq & ISC_REQ_REPLAY_DETECT)
634 {
635 if(strstr(want_flags, "NTLMSSP_FEATURE_SIGN") == NULL)
636 lstrcatA(want_flags, " NTLMSSP_FEATURE_SIGN");
637 }
638 if(fContextReq & ISC_REQ_SEQUENCE_DETECT)
639 {
640 if(strstr(want_flags, "NTLMSSP_FEATURE_SIGN") == NULL)
641 lstrcatA(want_flags, " NTLMSSP_FEATURE_SIGN");
642 }
643 if(fContextReq & ISC_REQ_STREAM)
644 FIXME("ISC_REQ_STREAM\n");
645 if(fContextReq & ISC_REQ_USE_DCE_STYLE)
646 ctxt_attr |= ISC_RET_USED_DCE_STYLE;
647 if(fContextReq & ISC_REQ_DELEGATE)
648 ctxt_attr |= ISC_RET_DELEGATE;
649
650 /* If no password is given, try to use cached credentials. Fall back to an empty
651 * password if this failed. */
652 if(!password && !ntlm_cred->password)
653 {
654 lstrcpynA(buffer, "OK", max_len-1);
655 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
656 {
657 cleanup_helper(helper);
658 goto isc_end;
659 }
660 /* If the helper replied with "PW", using cached credentials failed */
661 if(!strncmp(buffer, "PW", 2))
662 {
663 TRACE("Using cached credentials failed.\n");
664 lstrcpynA(buffer, "PW AA==", max_len-1);
665 }
666 else /* Just do a noop on the next run */
667 lstrcpynA(buffer, "OK", max_len-1);
668 }
669 else
670 {
671 lstrcpynA(buffer, "PW ", max_len-1);
672 if((ret = encodeBase64(password ? (unsigned char *)password : (unsigned char *)ntlm_cred->password,
673 password ? pwlen : ntlm_cred->pwlen, buffer+3,
674 max_len-3, &buffer_len)) != SEC_E_OK)
675 {
676 cleanup_helper(helper);
677 goto isc_end;
678 }
679
680 }
681
682 TRACE("Sending to helper: %s\n", debugstr_a(buffer));
683 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
684 {
685 cleanup_helper(helper);
686 goto isc_end;
687 }
688
689 TRACE("Helper returned %s\n", debugstr_a(buffer));
690
691 if(lstrlenA(want_flags) > 2)
692 {
693 TRACE("Want flags are %s\n", debugstr_a(want_flags));
694 lstrcpynA(buffer, want_flags, max_len-1);
695 if((ret = run_helper(helper, buffer, max_len, &buffer_len))
696 != SEC_E_OK)
697 {
698 cleanup_helper(helper);
699 goto isc_end;
700 }
701 if(!strncmp(buffer, "BH", 2))
702 ERR("Helper doesn't understand new command set. Expect more things to fail.\n");
703 }
704
705 lstrcpynA(buffer, "YR", max_len-1);
706
707 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
708 {
709 cleanup_helper(helper);
710 goto isc_end;
711 }
712
713 TRACE("%s\n", buffer);
714
715 if(strncmp(buffer, "YR ", 3) != 0)
716 {
717 /* Something borked */
718 TRACE("Helper returned %c%c\n", buffer[0], buffer[1]);
719 ret = SEC_E_INTERNAL_ERROR;
720 cleanup_helper(helper);
721 goto isc_end;
722 }
723 if((ret = decodeBase64(buffer+3, buffer_len-3, bin,
724 max_len-1, &bin_len)) != SEC_E_OK)
725 {
726 cleanup_helper(helper);
727 goto isc_end;
728 }
729
730 /* put the decoded client blob into the out buffer */
731
732 phNewContext->dwUpper = ctxt_attr;
733 phNewContext->dwLower = (ULONG_PTR)helper;
734
735 ret = SEC_I_CONTINUE_NEEDED;
736 }
737 else
738 {
739 int input_token_idx;
740
741 /* handle second call here */
742 /* encode server data to base64 */
743 if (!pInput || ((input_token_idx = ntlm_GetTokenBufferIndex(pInput)) == -1))
744 {
745 ret = SEC_E_INVALID_TOKEN;
746 goto isc_end;
747 }
748
749 if(!phContext)
750 {
751 ret = SEC_E_INVALID_HANDLE;
752 goto isc_end;
753 }
754
755 /* As the server side of sspi never calls this, make sure that
756 * the handler is a client handler.
757 */
758 helper = (PNegoHelper)phContext->dwLower;
759 if(helper->mode != NTLM_CLIENT)
760 {
761 TRACE("Helper mode = %d\n", helper->mode);
762 ret = SEC_E_INVALID_HANDLE;
763 goto isc_end;
764 }
765
766 if (!pInput->pBuffers[input_token_idx].pvBuffer)
767 {
768 ret = SEC_E_INTERNAL_ERROR;
769 goto isc_end;
770 }
771
772 if(pInput->pBuffers[input_token_idx].cbBuffer > max_len)
773 {
774 TRACE("pInput->pBuffers[%d].cbBuffer is: %d\n",
775 input_token_idx,
776 pInput->pBuffers[input_token_idx].cbBuffer);
777 ret = SEC_E_INVALID_TOKEN;
778 goto isc_end;
779 }
780 else
781 bin_len = pInput->pBuffers[input_token_idx].cbBuffer;
782
783 memcpy(bin, pInput->pBuffers[input_token_idx].pvBuffer, bin_len);
784
785 lstrcpynA(buffer, "TT ", max_len-1);
786
787 if((ret = encodeBase64(bin, bin_len, buffer+3,
788 max_len-3, &buffer_len)) != SEC_E_OK)
789 goto isc_end;
790
791 TRACE("Server sent: %s\n", debugstr_a(buffer));
792
793 /* send TT base64 blob to ntlm_auth */
794 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
795 goto isc_end;
796
797 TRACE("Helper replied: %s\n", debugstr_a(buffer));
798
799 if( (strncmp(buffer, "KK ", 3) != 0) &&
800 (strncmp(buffer, "AF ", 3) !=0))
801 {
802 TRACE("Helper returned %c%c\n", buffer[0], buffer[1]);
803 ret = SEC_E_INVALID_TOKEN;
804 goto isc_end;
805 }
806
807 /* decode the blob and send it to server */
808 if((ret = decodeBase64(buffer+3, buffer_len-3, bin, max_len,
809 &bin_len)) != SEC_E_OK)
810 {
811 goto isc_end;
812 }
813
814 phNewContext->dwUpper = ctxt_attr;
815 phNewContext->dwLower = (ULONG_PTR)helper;
816
817 ret = SEC_E_OK;
818 }
819
820 /* put the decoded client blob into the out buffer */
821
822 if (!pOutput || ((token_idx = ntlm_GetTokenBufferIndex(pOutput)) == -1))
823 {
824 TRACE("no SECBUFFER_TOKEN buffer could be found\n");
825 ret = SEC_E_BUFFER_TOO_SMALL;
826 if ((phContext == NULL) && (pInput == NULL))
827 {
828 HeapFree(GetProcessHeap(), 0, helper->session_key);
829 cleanup_helper(helper);
830 phNewContext->dwUpper = 0;
831 phNewContext->dwLower = 0;
832 }
833 goto isc_end;
834 }
835
836 if (fContextReq & ISC_REQ_ALLOCATE_MEMORY)
837 {
838 pOutput->pBuffers[token_idx].pvBuffer = HeapAlloc(GetProcessHeap(), 0, bin_len);
839 pOutput->pBuffers[token_idx].cbBuffer = bin_len;
840 }
841 else if (pOutput->pBuffers[token_idx].cbBuffer < bin_len)
842 {
843 TRACE("out buffer is NULL or has not enough space\n");
844 ret = SEC_E_BUFFER_TOO_SMALL;
845 if ((phContext == NULL) && (pInput == NULL))
846 {
847 HeapFree(GetProcessHeap(), 0, helper->session_key);
848 cleanup_helper(helper);
849 phNewContext->dwUpper = 0;
850 phNewContext->dwLower = 0;
851 }
852 goto isc_end;
853 }
854
855 if (!pOutput->pBuffers[token_idx].pvBuffer)
856 {
857 TRACE("out buffer is NULL\n");
858 ret = SEC_E_INTERNAL_ERROR;
859 if ((phContext == NULL) && (pInput == NULL))
860 {
861 HeapFree(GetProcessHeap(), 0, helper->session_key);
862 cleanup_helper(helper);
863 phNewContext->dwUpper = 0;
864 phNewContext->dwLower = 0;
865 }
866 goto isc_end;
867 }
868
869 pOutput->pBuffers[token_idx].cbBuffer = bin_len;
870 memcpy(pOutput->pBuffers[token_idx].pvBuffer, bin, bin_len);
871
872 if(ret == SEC_E_OK)
873 {
874 TRACE("Getting negotiated flags\n");
875 lstrcpynA(buffer, "GF", max_len - 1);
876 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
877 goto isc_end;
878
879 if(buffer_len < 3)
880 {
881 TRACE("No flags negotiated.\n");
882 helper->neg_flags = 0l;
883 }
884 else
885 {
886 TRACE("Negotiated %s\n", debugstr_a(buffer));
887 sscanf(buffer + 3, "%x", &(helper->neg_flags));
888 TRACE("Stored 0x%08x as flags\n", helper->neg_flags);
889 }
890
891 TRACE("Getting session key\n");
892 lstrcpynA(buffer, "GK", max_len - 1);
893 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
894 goto isc_end;
895
896 if(strncmp(buffer, "BH", 2) == 0)
897 TRACE("No key negotiated.\n");
898 else if(strncmp(buffer, "GK ", 3) == 0)
899 {
900 if((ret = decodeBase64(buffer+3, buffer_len-3, bin, max_len,
901 &bin_len)) != SEC_E_OK)
902 {
903 TRACE("Failed to decode session key\n");
904 }
905 TRACE("Session key is %s\n", debugstr_a(buffer+3));
906 HeapFree(GetProcessHeap(), 0, helper->session_key);
907 helper->session_key = HeapAlloc(GetProcessHeap(), 0, bin_len);
908 if(!helper->session_key)
909 {
910 TRACE("Failed to allocate memory for session key\n");
911 ret = SEC_E_INTERNAL_ERROR;
912 goto isc_end;
913 }
914 memcpy(helper->session_key, bin, bin_len);
915 }
916
917 helper->crypt.ntlm.a4i = SECUR32_arc4Alloc();
918 SECUR32_arc4Init(helper->crypt.ntlm.a4i, helper->session_key, 16);
919 helper->crypt.ntlm.seq_num = 0l;
920 SECUR32_CreateNTLM2SubKeys(helper);
921 helper->crypt.ntlm2.send_a4i = SECUR32_arc4Alloc();
922 helper->crypt.ntlm2.recv_a4i = SECUR32_arc4Alloc();
923 SECUR32_arc4Init(helper->crypt.ntlm2.send_a4i,
924 helper->crypt.ntlm2.send_seal_key, 16);
925 SECUR32_arc4Init(helper->crypt.ntlm2.recv_a4i,
926 helper->crypt.ntlm2.recv_seal_key, 16);
927 helper->crypt.ntlm2.send_seq_no = 0l;
928 helper->crypt.ntlm2.recv_seq_no = 0l;
929 }
930
931 isc_end:
932 HeapFree(GetProcessHeap(), 0, username);
933 HeapFree(GetProcessHeap(), 0, domain);
934 HeapFree(GetProcessHeap(), 0, password);
935 HeapFree(GetProcessHeap(), 0, want_flags);
936 HeapFree(GetProcessHeap(), 0, buffer);
937 HeapFree(GetProcessHeap(), 0, bin);
938 return ret;
939 }
940
941 /***********************************************************************
942 * InitializeSecurityContextA
943 */
944 static SECURITY_STATUS SEC_ENTRY ntlm_InitializeSecurityContextA(
945 PCredHandle phCredential, PCtxtHandle phContext, SEC_CHAR *pszTargetName,
946 ULONG fContextReq, ULONG Reserved1, ULONG TargetDataRep,
947 PSecBufferDesc pInput,ULONG Reserved2, PCtxtHandle phNewContext,
948 PSecBufferDesc pOutput, ULONG *pfContextAttr, PTimeStamp ptsExpiry)
949 {
950 SECURITY_STATUS ret;
951 SEC_WCHAR *target = NULL;
952
953 TRACE("%p %p %s %d %d %d %p %d %p %p %p %p\n", phCredential, phContext,
954 debugstr_a(pszTargetName), fContextReq, Reserved1, TargetDataRep, pInput,
955 Reserved1, phNewContext, pOutput, pfContextAttr, ptsExpiry);
956
957 if(pszTargetName != NULL)
958 {
959 int target_size = MultiByteToWideChar(CP_ACP, 0, pszTargetName,
960 strlen(pszTargetName)+1, NULL, 0);
961 target = HeapAlloc(GetProcessHeap(), 0, target_size *
962 sizeof(SEC_WCHAR));
963 MultiByteToWideChar(CP_ACP, 0, pszTargetName, strlen(pszTargetName)+1,
964 target, target_size);
965 }
966
967 ret = ntlm_InitializeSecurityContextW(phCredential, phContext, target,
968 fContextReq, Reserved1, TargetDataRep, pInput, Reserved2,
969 phNewContext, pOutput, pfContextAttr, ptsExpiry);
970
971 HeapFree(GetProcessHeap(), 0, target);
972 return ret;
973 }
974
975 /***********************************************************************
976 * AcceptSecurityContext
977 */
978 static SECURITY_STATUS SEC_ENTRY ntlm_AcceptSecurityContext(
979 PCredHandle phCredential, PCtxtHandle phContext, PSecBufferDesc pInput,
980 ULONG fContextReq, ULONG TargetDataRep, PCtxtHandle phNewContext,
981 PSecBufferDesc pOutput, ULONG *pfContextAttr, PTimeStamp ptsExpiry)
982 {
983 SECURITY_STATUS ret;
984 char *buffer, *want_flags = NULL;
985 PBYTE bin;
986 int buffer_len, bin_len, max_len = NTLM_MAX_BUF;
987 ULONG ctxt_attr = 0;
988 PNegoHelper helper;
989 PNtlmCredentials ntlm_cred;
990
991 TRACE("%p %p %p %d %d %p %p %p %p\n", phCredential, phContext, pInput,
992 fContextReq, TargetDataRep, phNewContext, pOutput, pfContextAttr,
993 ptsExpiry);
994
995 buffer = HeapAlloc(GetProcessHeap(), 0, sizeof(char) * NTLM_MAX_BUF);
996 bin = HeapAlloc(GetProcessHeap(),0, sizeof(BYTE) * NTLM_MAX_BUF);
997
998 if(TargetDataRep == SECURITY_NETWORK_DREP){
999 TRACE("Using SECURITY_NETWORK_DREP\n");
1000 }
1001
1002 if(phContext == NULL)
1003 {
1004 static CHAR server_helper_protocol[] = "--helper-protocol=squid-2.5-ntlmssp";
1005 SEC_CHAR *server_argv[] = { ntlm_auth,
1006 server_helper_protocol,
1007 NULL };
1008
1009 if (!phCredential)
1010 {
1011 ret = SEC_E_INVALID_HANDLE;
1012 goto asc_end;
1013 }
1014
1015 ntlm_cred = (PNtlmCredentials)phCredential->dwLower;
1016
1017 if(ntlm_cred->mode != NTLM_SERVER)
1018 {
1019 ret = SEC_E_INVALID_HANDLE;
1020 goto asc_end;
1021 }
1022
1023 /* This is the first call to AcceptSecurityHandle */
1024 if(pInput == NULL)
1025 {
1026 ret = SEC_E_INCOMPLETE_MESSAGE;
1027 goto asc_end;
1028 }
1029
1030 if(pInput->cBuffers < 1)
1031 {
1032 ret = SEC_E_INCOMPLETE_MESSAGE;
1033 goto asc_end;
1034 }
1035
1036 if(pInput->pBuffers[0].cbBuffer > max_len)
1037 {
1038 ret = SEC_E_INVALID_TOKEN;
1039 goto asc_end;
1040 }
1041 else
1042 bin_len = pInput->pBuffers[0].cbBuffer;
1043
1044 if( (ret = fork_helper(&helper, ntlm_auth, server_argv)) !=
1045 SEC_E_OK)
1046 {
1047 ret = SEC_E_INTERNAL_ERROR;
1048 goto asc_end;
1049 }
1050 helper->mode = NTLM_SERVER;
1051
1052 /* Handle all the flags */
1053 want_flags = HeapAlloc(GetProcessHeap(), 0, 73);
1054 if(want_flags == NULL)
1055 {
1056 TRACE("Failed to allocate memory for the want_flags!\n");
1057 ret = SEC_E_INSUFFICIENT_MEMORY;
1058 cleanup_helper(helper);
1059 goto asc_end;
1060 }
1061 lstrcpyA(want_flags, "SF");
1062 if(fContextReq & ASC_REQ_ALLOCATE_MEMORY)
1063 {
1064 FIXME("ASC_REQ_ALLOCATE_MEMORY stub\n");
1065 }
1066 if(fContextReq & ASC_REQ_CONFIDENTIALITY)
1067 {
1068 lstrcatA(want_flags, " NTLMSSP_FEATURE_SEAL");
1069 }
1070 if(fContextReq & ASC_REQ_CONNECTION)
1071 {
1072 /* This is default, so we'll enable it */
1073 lstrcatA(want_flags, " NTLMSSP_FEATURE_SESSION_KEY");
1074 ctxt_attr |= ASC_RET_CONNECTION;
1075 }
1076 if(fContextReq & ASC_REQ_EXTENDED_ERROR)
1077 {
1078 FIXME("ASC_REQ_EXTENDED_ERROR stub\n");
1079 }
1080 if(fContextReq & ASC_REQ_INTEGRITY)
1081 {
1082 lstrcatA(want_flags, " NTLMSSP_FEATURE_SIGN");
1083 }
1084 if(fContextReq & ASC_REQ_MUTUAL_AUTH)
1085 {
1086 FIXME("ASC_REQ_MUTUAL_AUTH stub\n");
1087 }
1088 if(fContextReq & ASC_REQ_REPLAY_DETECT)
1089 {
1090 FIXME("ASC_REQ_REPLAY_DETECT stub\n");
1091 }
1092 if(fContextReq & ISC_REQ_SEQUENCE_DETECT)
1093 {
1094 FIXME("ASC_REQ_SEQUENCE_DETECT stub\n");
1095 }
1096 if(fContextReq & ISC_REQ_STREAM)
1097 {
1098 FIXME("ASC_REQ_STREAM stub\n");
1099 }
1100 /* Done with the flags */
1101
1102 if(lstrlenA(want_flags) > 3)
1103 {
1104 TRACE("Server set want_flags: %s\n", debugstr_a(want_flags));
1105 lstrcpynA(buffer, want_flags, max_len - 1);
1106 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) !=
1107 SEC_E_OK)
1108 {
1109 cleanup_helper(helper);
1110 goto asc_end;
1111 }
1112 if(!strncmp(buffer, "BH", 2))
1113 TRACE("Helper doesn't understand new command set\n");
1114 }
1115
1116 /* This is the YR request from the client, encode to base64 */
1117
1118 memcpy(bin, pInput->pBuffers[0].pvBuffer, bin_len);
1119
1120 lstrcpynA(buffer, "YR ", max_len-1);
1121
1122 if((ret = encodeBase64(bin, bin_len, buffer+3, max_len-3,
1123 &buffer_len)) != SEC_E_OK)
1124 {
1125 cleanup_helper(helper);
1126 goto asc_end;
1127 }
1128
1129 TRACE("Client sent: %s\n", debugstr_a(buffer));
1130
1131 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) !=
1132 SEC_E_OK)
1133 {
1134 cleanup_helper(helper);
1135 goto asc_end;
1136 }
1137
1138 TRACE("Reply from ntlm_auth: %s\n", debugstr_a(buffer));
1139 /* The expected answer is TT <base64 blob> */
1140
1141 if(strncmp(buffer, "TT ", 3) != 0)
1142 {
1143 ret = SEC_E_INTERNAL_ERROR;
1144 cleanup_helper(helper);
1145 goto asc_end;
1146 }
1147
1148 if((ret = decodeBase64(buffer+3, buffer_len-3, bin, max_len,
1149 &bin_len)) != SEC_E_OK)
1150 {
1151 cleanup_helper(helper);
1152 goto asc_end;
1153 }
1154
1155 /* send this to the client */
1156 if(pOutput == NULL)
1157 {
1158 ret = SEC_E_INSUFFICIENT_MEMORY;
1159 cleanup_helper(helper);
1160 goto asc_end;
1161 }
1162
1163 if(pOutput->cBuffers < 1)
1164 {
1165 ret = SEC_E_INSUFFICIENT_MEMORY;
1166 cleanup_helper(helper);
1167 goto asc_end;
1168 }
1169
1170 pOutput->pBuffers[0].cbBuffer = bin_len;
1171 pOutput->pBuffers[0].BufferType = SECBUFFER_DATA;
1172 memcpy(pOutput->pBuffers[0].pvBuffer, bin, bin_len);
1173 ret = SEC_I_CONTINUE_NEEDED;
1174
1175 }
1176 else
1177 {
1178 /* we expect a KK request from client */
1179 if(pInput == NULL)
1180 {
1181 ret = SEC_E_INCOMPLETE_MESSAGE;
1182 goto asc_end;
1183 }
1184
1185 if(pInput->cBuffers < 1)
1186 {
1187 ret = SEC_E_INCOMPLETE_MESSAGE;
1188 goto asc_end;
1189 }
1190
1191 if(!phContext)
1192 {
1193 ret = SEC_E_INVALID_HANDLE;
1194 goto asc_end;
1195 }
1196
1197 helper = (PNegoHelper)phContext->dwLower;
1198
1199 if(helper->mode != NTLM_SERVER)
1200 {
1201 ret = SEC_E_INVALID_HANDLE;
1202 goto asc_end;
1203 }
1204
1205 if(pInput->pBuffers[0].cbBuffer > max_len)
1206 {
1207 ret = SEC_E_INVALID_TOKEN;
1208 goto asc_end;
1209 }
1210 else
1211 bin_len = pInput->pBuffers[0].cbBuffer;
1212
1213 memcpy(bin, pInput->pBuffers[0].pvBuffer, bin_len);
1214
1215 lstrcpynA(buffer, "KK ", max_len-1);
1216
1217 if((ret = encodeBase64(bin, bin_len, buffer+3, max_len-3,
1218 &buffer_len)) != SEC_E_OK)
1219 {
1220 goto asc_end;
1221 }
1222
1223 TRACE("Client sent: %s\n", debugstr_a(buffer));
1224
1225 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) !=
1226 SEC_E_OK)
1227 {
1228 goto asc_end;
1229 }
1230
1231 TRACE("Reply from ntlm_auth: %s\n", debugstr_a(buffer));
1232
1233 /* At this point, we get a NA if the user didn't authenticate, but a BH
1234 * if ntlm_auth could not connect to winbindd. Apart from running Wine
1235 * as root, there is no way to fix this for now, so just handle this as
1236 * a failed login. */
1237 if(strncmp(buffer, "AF ", 3) != 0)
1238 {
1239 if(strncmp(buffer, "NA ", 3) == 0)
1240 {
1241 ret = SEC_E_LOGON_DENIED;
1242 goto asc_end;
1243 }
1244 else
1245 {
1246 size_t ntlm_pipe_err_len = strlen("BH NT_STATUS_ACCESS_DENIED");
1247
1248 if( (buffer_len >= ntlm_pipe_err_len) &&
1249 (strncmp(buffer, "BH NT_STATUS_ACCESS_DENIED",
1250 ntlm_pipe_err_len) == 0))
1251 {
1252 TRACE("Connection to winbindd failed\n");
1253 ret = SEC_E_LOGON_DENIED;
1254 }
1255 else
1256 ret = SEC_E_INTERNAL_ERROR;
1257
1258 goto asc_end;
1259 }
1260 }
1261 pOutput->pBuffers[0].cbBuffer = 0;
1262
1263 TRACE("Getting negotiated flags\n");
1264 lstrcpynA(buffer, "GF", max_len - 1);
1265 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
1266 goto asc_end;
1267
1268 if(buffer_len < 3)
1269 {
1270 TRACE("No flags negotiated, or helper does not support GF command\n");
1271 }
1272 else
1273 {
1274 TRACE("Negotiated %s\n", debugstr_a(buffer));
1275 sscanf(buffer + 3, "%x", &(helper->neg_flags));
1276 TRACE("Stored 0x%08x as flags\n", helper->neg_flags);
1277 }
1278
1279 TRACE("Getting session key\n");
1280 lstrcpynA(buffer, "GK", max_len - 1);
1281 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
1282 goto asc_end;
1283
1284 if(buffer_len < 3)
1285 TRACE("Helper does not support GK command\n");
1286 else
1287 {
1288 if(strncmp(buffer, "BH ", 3) == 0)
1289 {
1290 TRACE("Helper sent %s\n", debugstr_a(buffer+3));
1291 helper->session_key = HeapAlloc(GetProcessHeap(), 0, 16);
1292 /*FIXME: Generate the dummy session key = MD4(MD4(password))*/
1293 memset(helper->session_key, 0 , 16);
1294 }
1295 else if(strncmp(buffer, "GK ", 3) == 0)
1296 {
1297 if((ret = decodeBase64(buffer+3, buffer_len-3, bin, max_len,
1298 &bin_len)) != SEC_E_OK)
1299 {
1300 TRACE("Failed to decode session key\n");
1301 }
1302 TRACE("Session key is %s\n", debugstr_a(buffer+3));
1303 helper->session_key = HeapAlloc(GetProcessHeap(), 0, 16);
1304 if(!helper->session_key)
1305 {
1306 TRACE("Failed to allocate memory for session key\n");
1307 ret = SEC_E_INTERNAL_ERROR;
1308 goto asc_end;
1309 }
1310 memcpy(helper->session_key, bin, 16);
1311 }
1312 }
1313 helper->crypt.ntlm.a4i = SECUR32_arc4Alloc();
1314 SECUR32_arc4Init(helper->crypt.ntlm.a4i, helper->session_key, 16);
1315 helper->crypt.ntlm.seq_num = 0l;
1316 }
1317
1318 phNewContext->dwUpper = ctxt_attr;
1319 phNewContext->dwLower = (ULONG_PTR)helper;
1320
1321 asc_end:
1322 HeapFree(GetProcessHeap(), 0, want_flags);
1323 HeapFree(GetProcessHeap(), 0, buffer);
1324 HeapFree(GetProcessHeap(), 0, bin);
1325 return ret;
1326 }
1327
1328 /***********************************************************************
1329 * CompleteAuthToken
1330 */
1331 static SECURITY_STATUS SEC_ENTRY ntlm_CompleteAuthToken(PCtxtHandle phContext,
1332 PSecBufferDesc pToken)
1333 {
1334 /* We never need to call CompleteAuthToken anyway */
1335 TRACE("%p %p\n", phContext, pToken);
1336 if (!phContext)
1337 return SEC_E_INVALID_HANDLE;
1338
1339 return SEC_E_OK;
1340 }
1341
1342 /***********************************************************************
1343 * DeleteSecurityContext
1344 */
1345 static SECURITY_STATUS SEC_ENTRY ntlm_DeleteSecurityContext(PCtxtHandle phContext)
1346 {
1347 PNegoHelper helper;
1348
1349 TRACE("%p\n", phContext);
1350 if (!phContext)
1351 return SEC_E_INVALID_HANDLE;
1352
1353 helper = (PNegoHelper)phContext->dwLower;
1354
1355 phContext->dwUpper = 0;
1356 phContext->dwLower = 0;
1357
1358 SECUR32_arc4Cleanup(helper->crypt.ntlm.a4i);
1359 HeapFree(GetProcessHeap(), 0, helper->session_key);
1360 SECUR32_arc4Cleanup(helper->crypt.ntlm2.send_a4i);
1361 SECUR32_arc4Cleanup(helper->crypt.ntlm2.recv_a4i);
1362 HeapFree(GetProcessHeap(), 0, helper->crypt.ntlm2.send_sign_key);
1363 HeapFree(GetProcessHeap(), 0, helper->crypt.ntlm2.send_seal_key);
1364 HeapFree(GetProcessHeap(), 0, helper->crypt.ntlm2.recv_sign_key);
1365 HeapFree(GetProcessHeap(), 0, helper->crypt.ntlm2.recv_seal_key);
1366
1367 cleanup_helper(helper);
1368
1369 return SEC_E_OK;
1370 }
1371
1372 /***********************************************************************
1373 * QueryContextAttributesW
1374 */
1375 static SECURITY_STATUS SEC_ENTRY ntlm_QueryContextAttributesW(PCtxtHandle phContext,
1376 ULONG ulAttribute, void *pBuffer)
1377 {
1378 TRACE("%p %d %p\n", phContext, ulAttribute, pBuffer);
1379 if (!phContext)
1380 return SEC_E_INVALID_HANDLE;
1381
1382 switch(ulAttribute)
1383 {
1384 #define _x(x) case (x) : FIXME(#x" stub\n"); break
1385 _x(SECPKG_ATTR_ACCESS_TOKEN);
1386 _x(SECPKG_ATTR_AUTHORITY);
1387 _x(SECPKG_ATTR_DCE_INFO);
1388 case SECPKG_ATTR_FLAGS:
1389 {
1390 PSecPkgContext_Flags spcf = (PSecPkgContext_Flags)pBuffer;
1391 PNegoHelper helper = (PNegoHelper)phContext->dwLower;
1392
1393 spcf->Flags = 0;
1394 if(helper->neg_flags & NTLMSSP_NEGOTIATE_SIGN)
1395 spcf->Flags |= ISC_RET_INTEGRITY;
1396 if(helper->neg_flags & NTLMSSP_NEGOTIATE_SEAL)
1397 spcf->Flags |= ISC_RET_CONFIDENTIALITY;
1398 return SEC_E_OK;
1399 }
1400 _x(SECPKG_ATTR_KEY_INFO);
1401 _x(SECPKG_ATTR_LIFESPAN);
1402 _x(SECPKG_ATTR_NAMES);
1403 _x(SECPKG_ATTR_NATIVE_NAMES);
1404 _x(SECPKG_ATTR_NEGOTIATION_INFO);
1405 _x(SECPKG_ATTR_PACKAGE_INFO);
1406 _x(SECPKG_ATTR_PASSWORD_EXPIRY);
1407 _x(SECPKG_ATTR_SESSION_KEY);
1408 case SECPKG_ATTR_SIZES:
1409 {
1410 PSecPkgContext_Sizes spcs = (PSecPkgContext_Sizes)pBuffer;
1411 spcs->cbMaxToken = NTLM_MAX_BUF;
1412 spcs->cbMaxSignature = 16;
1413 spcs->cbBlockSize = 0;
1414 spcs->cbSecurityTrailer = 16;
1415 return SEC_E_OK;
1416 }
1417 _x(SECPKG_ATTR_STREAM_SIZES);
1418 _x(SECPKG_ATTR_TARGET_INFORMATION);
1419 #undef _x
1420 default:
1421 TRACE("Unknown value %d passed for ulAttribute\n", ulAttribute);
1422 }
1423
1424 return SEC_E_UNSUPPORTED_FUNCTION;
1425 }
1426
1427 /***********************************************************************
1428 * QueryContextAttributesA
1429 */
1430 static SECURITY_STATUS SEC_ENTRY ntlm_QueryContextAttributesA(PCtxtHandle phContext,
1431 ULONG ulAttribute, void *pBuffer)
1432 {
1433 return ntlm_QueryContextAttributesW(phContext, ulAttribute, pBuffer);
1434 }
1435
1436 /***********************************************************************
1437 * ImpersonateSecurityContext
1438 */
1439 static SECURITY_STATUS SEC_ENTRY ntlm_ImpersonateSecurityContext(PCtxtHandle phContext)
1440 {
1441 SECURITY_STATUS ret;
1442
1443 TRACE("%p\n", phContext);
1444 if (phContext)
1445 {
1446 ret = SEC_E_UNSUPPORTED_FUNCTION;
1447 }
1448 else
1449 {
1450 ret = SEC_E_INVALID_HANDLE;
1451 }
1452 return ret;
1453 }
1454
1455 /***********************************************************************
1456 * RevertSecurityContext
1457 */
1458 static SECURITY_STATUS SEC_ENTRY ntlm_RevertSecurityContext(PCtxtHandle phContext)
1459 {
1460 SECURITY_STATUS ret;
1461
1462 TRACE("%p\n", phContext);
1463 if (phContext)
1464 {
1465 ret = SEC_E_UNSUPPORTED_FUNCTION;
1466 }
1467 else
1468 {
1469 ret = SEC_E_INVALID_HANDLE;
1470 }
1471 return ret;
1472 }
1473
1474 /***********************************************************************
1475 * ntlm_CreateSignature
1476 * As both MakeSignature and VerifySignature need this, but different keys
1477 * are needed for NTLM2, the logic goes into a helper function.
1478 * To ensure maximal reusability, we can specify the direction as NTLM_SEND for
1479 * signing/encrypting and NTLM_RECV for verfying/decrypting. When encrypting,
1480 * the signature is encrypted after the message was encrypted, so
1481 * CreateSignature shouldn't do it. In this case, encrypt_sig can be set to
1482 * false.
1483 */
1484 static SECURITY_STATUS ntlm_CreateSignature(PNegoHelper helper, PSecBufferDesc pMessage,
1485 int token_idx, SignDirection direction, BOOL encrypt_sig)
1486 {
1487 ULONG sign_version = 1;
1488 UINT i;
1489 PBYTE sig;
1490 TRACE("%p, %p, %d, %d, %d\n", helper, pMessage, token_idx, direction,
1491 encrypt_sig);
1492
1493 sig = pMessage->pBuffers[token_idx].pvBuffer;
1494
1495 if(helper->neg_flags & NTLMSSP_NEGOTIATE_NTLM2 &&
1496 helper->neg_flags & NTLMSSP_NEGOTIATE_SIGN)
1497 {
1498 BYTE digest[16];
1499 BYTE seq_no[4];
1500 HMAC_MD5_CTX hmac_md5_ctx;
1501
1502 TRACE("Signing NTLM2 style\n");
1503
1504 if(direction == NTLM_SEND)
1505 {
1506 seq_no[0] = (helper->crypt.ntlm2.send_seq_no >> 0) & 0xff;
1507 seq_no[1] = (helper->crypt.ntlm2.send_seq_no >> 8) & 0xff;
1508 seq_no[2] = (helper->crypt.ntlm2.send_seq_no >> 16) & 0xff;
1509 seq_no[3] = (helper->crypt.ntlm2.send_seq_no >> 24) & 0xff;
1510
1511 ++(helper->crypt.ntlm2.send_seq_no);
1512
1513 HMACMD5Init(&hmac_md5_ctx, helper->crypt.ntlm2.send_sign_key, 16);
1514 }
1515 else
1516 {
1517 seq_no[0] = (helper->crypt.ntlm2.recv_seq_no >> 0) & 0xff;
1518 seq_no[1] = (helper->crypt.ntlm2.recv_seq_no >> 8) & 0xff;
1519 seq_no[2] = (helper->crypt.ntlm2.recv_seq_no >> 16) & 0xff;
1520 seq_no[3] = (helper->crypt.ntlm2.recv_seq_no >> 24) & 0xff;
1521
1522 ++(helper->crypt.ntlm2.recv_seq_no);
1523
1524 HMACMD5Init(&hmac_md5_ctx, helper->crypt.ntlm2.recv_sign_key, 16);
1525 }
1526
1527 HMACMD5Update(&hmac_md5_ctx, seq_no, 4);
1528 for( i = 0; i < pMessage->cBuffers; ++i )
1529 {
1530 if(pMessage->pBuffers[i].BufferType & SECBUFFER_DATA)
1531 HMACMD5Update(&hmac_md5_ctx, pMessage->pBuffers[i].pvBuffer,
1532 pMessage->pBuffers[i].cbBuffer);
1533 }
1534
1535 HMACMD5Final(&hmac_md5_ctx, digest);
1536
1537 if(encrypt_sig && helper->neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCHANGE)
1538 {
1539 if(direction == NTLM_SEND)
1540 SECUR32_arc4Process(helper->crypt.ntlm2.send_a4i, digest, 8);
1541 else
1542 SECUR32_arc4Process(helper->crypt.ntlm2.recv_a4i, digest, 8);
1543 }
1544
1545 /* The NTLM2 signature is the sign version */
1546 sig[ 0] = (sign_version >> 0) & 0xff;
1547 sig[ 1] = (sign_version >> 8) & 0xff;
1548 sig[ 2] = (sign_version >> 16) & 0xff;
1549 sig[ 3] = (sign_version >> 24) & 0xff;
1550 /* The first 8 bytes of the digest */
1551 memcpy(sig+4, digest, 8);
1552 /* And the sequence number */
1553 memcpy(sig+12, seq_no, 4);
1554
1555 pMessage->pBuffers[token_idx].cbBuffer = 16;
1556
1557 return SEC_E_OK;
1558 }
1559 if(helper->neg_flags & NTLMSSP_NEGOTIATE_SIGN)
1560 {
1561 ULONG crc = 0U;
1562 TRACE("Signing NTLM1 style\n");
1563
1564 for(i=0; i < pMessage->cBuffers; ++i)
1565 {
1566 if(pMessage->pBuffers[i].BufferType & SECBUFFER_DATA)
1567 {
1568 crc = ComputeCrc32(pMessage->pBuffers[i].pvBuffer,
1569 pMessage->pBuffers[i].cbBuffer, crc);
1570 }
1571 }
1572
1573 sig[ 0] = (sign_version >> 0) & 0xff;
1574 sig[ 1] = (sign_version >> 8) & 0xff;
1575 sig[ 2] = (sign_version >> 16) & 0xff;
1576 sig[ 3] = (sign_version >> 24) & 0xff;
1577 memset(sig+4, 0, 4);
1578 sig[ 8] = (crc >> 0) & 0xff;
1579 sig[ 9] = (crc >> 8) & 0xff;
1580 sig[10] = (crc >> 16) & 0xff;
1581 sig[11] = (crc >> 24) & 0xff;
1582 sig[12] = (helper->crypt.ntlm.seq_num >> 0) & 0xff;
1583 sig[13] = (helper->crypt.ntlm.seq_num >> 8) & 0xff;
1584 sig[14] = (helper->crypt.ntlm.seq_num >> 16) & 0xff;
1585 sig[15] = (helper->crypt.ntlm.seq_num >> 24) & 0xff;
1586
1587 ++(helper->crypt.ntlm.seq_num);
1588
1589 if(encrypt_sig)
1590 SECUR32_arc4Process(helper->crypt.ntlm.a4i, sig+4, 12);
1591 return SEC_E_OK;
1592 }
1593
1594 if(helper->neg_flags & NTLMSSP_NEGOTIATE_ALWAYS_SIGN || helper->neg_flags == 0)
1595 {
1596 TRACE("Creating a dummy signature.\n");
1597 /* A dummy signature is 0x01 followed by 15 bytes of 0x00 */
1598 memset(pMessage->pBuffers[token_idx].pvBuffer, 0, 16);
1599 memset(pMessage->pBuffers[token_idx].pvBuffer, 0x01, 1);
1600 pMessage->pBuffers[token_idx].cbBuffer = 16;
1601 return SEC_E_OK;
1602 }
1603
1604 return SEC_E_UNSUPPORTED_FUNCTION;
1605 }
1606
1607 /***********************************************************************
1608 * MakeSignature
1609 */
1610 static SECURITY_STATUS SEC_ENTRY ntlm_MakeSignature(PCtxtHandle phContext, ULONG fQOP,
1611 PSecBufferDesc pMessage, ULONG MessageSeqNo)
1612 {
1613 PNegoHelper helper;
1614 int token_idx;
1615
1616 TRACE("%p %d %p %d\n", phContext, fQOP, pMessage, MessageSeqNo);
1617 if (!phContext)
1618 return SEC_E_INVALID_HANDLE;
1619
1620 if(fQOP)
1621 FIXME("Ignoring fQOP 0x%08x\n", fQOP);
1622
1623 if(MessageSeqNo)
1624 FIXME("Ignoring MessageSeqNo\n");
1625
1626 if(!pMessage || !pMessage->pBuffers || pMessage->cBuffers < 2)
1627 return SEC_E_INVALID_TOKEN;
1628
1629 /* If we didn't find a SECBUFFER_TOKEN type buffer */
1630 if((token_idx = ntlm_GetTokenBufferIndex(pMessage)) == -1)
1631 return SEC_E_INVALID_TOKEN;
1632
1633 if(pMessage->pBuffers[token_idx].cbBuffer < 16)
1634 return SEC_E_BUFFER_TOO_SMALL;
1635
1636 helper = (PNegoHelper)phContext->dwLower;
1637 TRACE("Negotiated flags are: 0x%08x\n", helper->neg_flags);
1638
1639 return ntlm_CreateSignature(helper, pMessage, token_idx, NTLM_SEND, TRUE);
1640 }
1641
1642 /***********************************************************************
1643 * VerifySignature
1644 */
1645 static SECURITY_STATUS SEC_ENTRY ntlm_VerifySignature(PCtxtHandle phContext,
1646 PSecBufferDesc pMessage, ULONG MessageSeqNo, PULONG pfQOP)
1647 {
1648 PNegoHelper helper;
1649 ULONG fQOP = 0;
1650 UINT i;
1651 int token_idx;
1652 SECURITY_STATUS ret;
1653 SecBufferDesc local_desc;
1654 PSecBuffer local_buff;
1655 BYTE local_sig[16];
1656
1657 TRACE("%p %p %d %p\n", phContext, pMessage, MessageSeqNo, pfQOP);
1658 if(!phContext)
1659 return SEC_E_INVALID_HANDLE;
1660
1661 if(!pMessage || !pMessage->pBuffers || pMessage->cBuffers < 2)
1662 return SEC_E_INVALID_TOKEN;
1663
1664 if((token_idx = ntlm_GetTokenBufferIndex(pMessage)) == -1)
1665 return SEC_E_INVALID_TOKEN;
1666
1667 if(pMessage->pBuffers[token_idx].cbBuffer < 16)
1668 return SEC_E_BUFFER_TOO_SMALL;
1669
1670 if(MessageSeqNo)
1671 FIXME("Ignoring MessageSeqNo\n");
1672
1673 helper = (PNegoHelper)phContext->dwLower;
1674 TRACE("Negotiated flags: 0x%08x\n", helper->neg_flags);
1675
1676 local_buff = HeapAlloc(GetProcessHeap(), 0, pMessage->cBuffers * sizeof(SecBuffer));
1677
1678 local_desc.ulVersion = SECBUFFER_VERSION;
1679 local_desc.cBuffers = pMessage->cBuffers;
1680 local_desc.pBuffers = local_buff;
1681
1682 for(i=0; i < pMessage->cBuffers; ++i)
1683 {
1684 if(pMessage->pBuffers[i].BufferType == SECBUFFER_TOKEN)
1685 {
1686 local_buff[i].BufferType = SECBUFFER_TOKEN;
1687 local_buff[i].cbBuffer = 16;
1688 local_buff[i].pvBuffer = local_sig;
1689 }
1690 else
1691 {
1692 local_buff[i].BufferType = pMessage->pBuffers[i].BufferType;
1693 local_buff[i].cbBuffer = pMessage->pBuffers[i].cbBuffer;
1694 local_buff[i].pvBuffer = pMessage->pBuffers[i].pvBuffer;
1695 }
1696 }
1697
1698 if((ret = ntlm_CreateSignature(helper, &local_desc, token_idx, NTLM_RECV, TRUE)) != SEC_E_OK)
1699 return ret;
1700
1701 if(memcmp(((PBYTE)local_buff[token_idx].pvBuffer) + 8,
1702 ((PBYTE)pMessage->pBuffers[token_idx].pvBuffer) + 8, 8))
1703 ret = SEC_E_MESSAGE_ALTERED;
1704 else
1705 ret = SEC_E_OK;
1706
1707 HeapFree(GetProcessHeap(), 0, local_buff);
1708 pfQOP = &fQOP;
1709
1710 return ret;
1711
1712 }
1713
1714 /***********************************************************************
1715 * FreeCredentialsHandle
1716 */
1717 static SECURITY_STATUS SEC_ENTRY ntlm_FreeCredentialsHandle(
1718 PCredHandle phCredential)
1719 {
1720 SECURITY_STATUS ret;
1721
1722 if(phCredential){
1723 PNtlmCredentials ntlm_cred = (PNtlmCredentials) phCredential->dwLower;
1724 phCredential->dwUpper = 0;
1725 phCredential->dwLower = 0;
1726 if (ntlm_cred->password)
1727 memset(ntlm_cred->password, 0, ntlm_cred->pwlen);
1728 HeapFree(GetProcessHeap(), 0, ntlm_cred->password);
1729 HeapFree(GetProcessHeap(), 0, ntlm_cred->username_arg);
1730 HeapFree(GetProcessHeap(), 0, ntlm_cred->domain_arg);
1731 HeapFree(GetProcessHeap(), 0, ntlm_cred);
1732 ret = SEC_E_OK;
1733 }
1734 else
1735 ret = SEC_E_OK;
1736
1737 return ret;
1738 }
1739
1740 /***********************************************************************
1741 * EncryptMessage
1742 */
1743 static SECURITY_STATUS SEC_ENTRY ntlm_EncryptMessage(PCtxtHandle phContext,
1744 ULONG fQOP, PSecBufferDesc pMessage, ULONG MessageSeqNo)
1745 {
1746 PNegoHelper helper;
1747 int token_idx, data_idx;
1748
1749 TRACE("(%p %d %p %d)\n", phContext, fQOP, pMessage, MessageSeqNo);
1750
1751 if(!phContext)
1752 return SEC_E_INVALID_HANDLE;
1753
1754 if(fQOP)
1755 FIXME("Ignoring fQOP\n");
1756
1757 if(MessageSeqNo)
1758 FIXME("Ignoring MessageSeqNo\n");
1759
1760 if(!pMessage || !pMessage->pBuffers || pMessage->cBuffers < 2)
1761 return SEC_E_INVALID_TOKEN;
1762
1763 if((token_idx = ntlm_GetTokenBufferIndex(pMessage)) == -1)
1764 return SEC_E_INVALID_TOKEN;
1765
1766 if((data_idx = ntlm_GetDataBufferIndex(pMessage)) ==-1 )
1767 return SEC_E_INVALID_TOKEN;
1768
1769 if(pMessage->pBuffers[token_idx].cbBuffer < 16)
1770 return SEC_E_BUFFER_TOO_SMALL;
1771
1772 helper = (PNegoHelper) phContext->dwLower;
1773
1774 if(helper->neg_flags & NTLMSSP_NEGOTIATE_NTLM2 &&
1775 helper->neg_flags & NTLMSSP_NEGOTIATE_SEAL)
1776 {
1777 ntlm_CreateSignature(helper, pMessage, token_idx, NTLM_SEND, FALSE);
1778 SECUR32_arc4Process(helper->crypt.ntlm2.send_a4i,
1779 pMessage->pBuffers[data_idx].pvBuffer,
1780 pMessage->pBuffers[data_idx].cbBuffer);
1781
1782 if(helper->neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCHANGE)
1783 SECUR32_arc4Process(helper->crypt.ntlm2.send_a4i,
1784 ((BYTE *)pMessage->pBuffers[token_idx].pvBuffer)+4, 8);
1785
1786
1787 return SEC_E_OK;
1788 }
1789 else
1790 {
1791 PBYTE sig;
1792 ULONG save_flags;
1793
1794 /* EncryptMessage always produces real signatures, so make sure
1795 * NTLMSSP_NEGOTIATE_SIGN is set*/
1796 save_flags = helper->neg_flags;
1797 helper->neg_flags |= NTLMSSP_NEGOTIATE_SIGN;
1798 ntlm_CreateSignature(helper, pMessage, token_idx, NTLM_SEND, FALSE);
1799 helper->neg_flags = save_flags;
1800
1801 sig = pMessage->pBuffers[token_idx].pvBuffer;
1802
1803 SECUR32_arc4Process(helper->crypt.ntlm.a4i,
1804 pMessage->pBuffers[data_idx].pvBuffer,
1805 pMessage->pBuffers[data_idx].cbBuffer);
1806 SECUR32_arc4Process(helper->crypt.ntlm.a4i, sig+4, 12);
1807
1808 if(helper->neg_flags & NTLMSSP_NEGOTIATE_ALWAYS_SIGN || helper->neg_flags == 0)
1809 memset(sig+4, 0, 4);
1810
1811 }
1812
1813 return SEC_E_OK;
1814 }
1815
1816 /***********************************************************************
1817 * DecryptMessage
1818 */
1819 static SECURITY_STATUS SEC_ENTRY ntlm_DecryptMessage(PCtxtHandle phContext,
1820 PSecBufferDesc pMessage, ULONG MessageSeqNo, PULONG pfQOP)
1821 {
1822 SECURITY_STATUS ret;
1823 ULONG ntlmssp_flags_save;
1824 PNegoHelper helper;
1825 int token_idx, data_idx;
1826 TRACE("(%p %p %d %p)\n", phContext, pMessage, MessageSeqNo, pfQOP);
1827
1828 if(!phContext)
1829 return SEC_E_INVALID_HANDLE;
1830
1831 if(MessageSeqNo)
1832 FIXME("Ignoring MessageSeqNo\n");
1833
1834 if(!pMessage || !pMessage->pBuffers || pMessage->cBuffers < 2)
1835 return SEC_E_INVALID_TOKEN;
1836
1837 if((token_idx = ntlm_GetTokenBufferIndex(pMessage)) == -1)
1838 return SEC_E_INVALID_TOKEN;
1839
1840 if((data_idx = ntlm_GetDataBufferIndex(pMessage)) ==-1)
1841 return SEC_E_INVALID_TOKEN;
1842
1843 if(pMessage->pBuffers[token_idx].cbBuffer < 16)
1844 return SEC_E_BUFFER_TOO_SMALL;
1845
1846 helper = (PNegoHelper) phContext->dwLower;
1847
1848 if(helper->neg_flags & NTLMSSP_NEGOTIATE_NTLM2 && helper->neg_flags & NTLMSSP_NEGOTIATE_SEAL)
1849 {
1850 SECUR32_arc4Process(helper->crypt.ntlm2.recv_a4i,
1851 pMessage->pBuffers[data_idx].pvBuffer,
1852 pMessage->pBuffers[data_idx].cbBuffer);
1853 }
1854 else
1855 {
1856 SECUR32_arc4Process(helper->crypt.ntlm.a4i,
1857 pMessage->pBuffers[data_idx].pvBuffer,
1858 pMessage->pBuffers[data_idx].cbBuffer);
1859 }
1860
1861 /* Make sure we use a session key for the signature check, EncryptMessage
1862 * always does that, even in the dummy case */
1863 ntlmssp_flags_save = helper->neg_flags;
1864
1865 helper->neg_flags |= NTLMSSP_NEGOTIATE_SIGN;
1866 ret = ntlm_VerifySignature(phContext, pMessage, MessageSeqNo, pfQOP);
1867
1868 helper->neg_flags = ntlmssp_flags_save;
1869
1870 return ret;
1871 }
1872
1873 static const SecurityFunctionTableA ntlmTableA = {
1874 1,
1875 NULL, /* EnumerateSecurityPackagesA */
1876 ntlm_QueryCredentialsAttributesA, /* QueryCredentialsAttributesA */
1877 ntlm_AcquireCredentialsHandleA, /* AcquireCredentialsHandleA */
1878 ntlm_FreeCredentialsHandle, /* FreeCredentialsHandle */
1879 NULL, /* Reserved2 */
1880 ntlm_InitializeSecurityContextA, /* InitializeSecurityContextA */
1881 ntlm_AcceptSecurityContext, /* AcceptSecurityContext */
1882 ntlm_CompleteAuthToken, /* CompleteAuthToken */
1883 ntlm_DeleteSecurityContext, /* DeleteSecurityContext */
1884 NULL, /* ApplyControlToken */
1885 ntlm_QueryContextAttributesA, /* QueryContextAttributesA */
1886 ntlm_ImpersonateSecurityContext, /* ImpersonateSecurityContext */
1887 ntlm_RevertSecurityContext, /* RevertSecurityContext */
1888 ntlm_MakeSignature, /* MakeSignature */
1889 ntlm_VerifySignature, /* VerifySignature */
1890 FreeContextBuffer, /* FreeContextBuffer */
1891 NULL, /* QuerySecurityPackageInfoA */
1892 NULL, /* Reserved3 */
1893 NULL, /* Reserved4 */
1894 NULL, /* ExportSecurityContext */
1895 NULL, /* ImportSecurityContextA */
1896 NULL, /* AddCredentialsA */
1897 NULL, /* Reserved8 */
1898 NULL, /* QuerySecurityContextToken */
1899 ntlm_EncryptMessage, /* EncryptMessage */
1900 ntlm_DecryptMessage, /* DecryptMessage */
1901 NULL, /* SetContextAttributesA */
1902 };
1903
1904 static const SecurityFunctionTableW ntlmTableW = {
1905 1,
1906 NULL, /* EnumerateSecurityPackagesW */
1907 ntlm_QueryCredentialsAttributesW, /* QueryCredentialsAttributesW */
1908 ntlm_AcquireCredentialsHandleW, /* AcquireCredentialsHandleW */
1909 ntlm_FreeCredentialsHandle, /* FreeCredentialsHandle */
1910 NULL, /* Reserved2 */
1911 ntlm_InitializeSecurityContextW, /* InitializeSecurityContextW */
1912 ntlm_AcceptSecurityContext, /* AcceptSecurityContext */
1913 ntlm_CompleteAuthToken, /* CompleteAuthToken */
1914 ntlm_DeleteSecurityContext, /* DeleteSecurityContext */
1915 NULL, /* ApplyControlToken */
1916 ntlm_QueryContextAttributesW, /* QueryContextAttributesW */
1917 ntlm_ImpersonateSecurityContext, /* ImpersonateSecurityContext */
1918 ntlm_RevertSecurityContext, /* RevertSecurityContext */
1919 ntlm_MakeSignature, /* MakeSignature */
1920 ntlm_VerifySignature, /* VerifySignature */
1921 FreeContextBuffer, /* FreeContextBuffer */
1922 NULL, /* QuerySecurityPackageInfoW */
1923 NULL, /* Reserved3 */
1924 NULL, /* Reserved4 */
1925 NULL, /* ExportSecurityContext */
1926 NULL, /* ImportSecurityContextW */
1927 NULL, /* AddCredentialsW */
1928 NULL, /* Reserved8 */
1929 NULL, /* QuerySecurityContextToken */
1930 ntlm_EncryptMessage, /* EncryptMessage */
1931 ntlm_DecryptMessage, /* DecryptMessage */
1932 NULL, /* SetContextAttributesW */
1933 };
1934
1935 #define NTLM_COMMENT \
1936 { 'N', 'T', 'L', 'M', ' ', \
1937 'S', 'e', 'c', 'u', 'r', 'i', 't', 'y', ' ', \
1938 'P', 'a', 'c', 'k', 'a', 'g', 'e', 0}
1939
1940 static CHAR ntlm_comment_A[] = NTLM_COMMENT;
1941 static WCHAR ntlm_comment_W[] = NTLM_COMMENT;
1942
1943 #define NTLM_NAME {'N', 'T', 'L', 'M', 0}
1944
1945 static char ntlm_name_A[] = NTLM_NAME;
1946 static WCHAR ntlm_name_W[] = NTLM_NAME;
1947
1948 /* According to Windows, NTLM has the following capabilities. */
1949 #define CAPS ( \
1950 SECPKG_FLAG_INTEGRITY | \
1951 SECPKG_FLAG_PRIVACY | \
1952 SECPKG_FLAG_TOKEN_ONLY | \
1953 SECPKG_FLAG_CONNECTION | \
1954 SECPKG_FLAG_MULTI_REQUIRED | \
1955 SECPKG_FLAG_IMPERSONATION | \
1956 SECPKG_FLAG_ACCEPT_WIN32_NAME | \
1957 SECPKG_FLAG_READONLY_WITH_CHECKSUM)
1958
1959 static const SecPkgInfoW infoW = {
1960 CAPS,
1961 1,
1962 RPC_C_AUTHN_WINNT,
1963 NTLM_MAX_BUF,
1964 ntlm_name_W,
1965 ntlm_comment_W
1966 };
1967
1968 static const SecPkgInfoA infoA = {
1969 CAPS,
1970 1,
1971 RPC_C_AUTHN_WINNT,
1972 NTLM_MAX_BUF,
1973 ntlm_name_A,
1974 ntlm_comment_A
1975 };
1976
1977 #define NEGO_COMMENT { 'M', 'i', 'c', 'r', 'o', 's', 'o', 'f', 't', ' ', \
1978 'P', 'a', 'c', 'k', 'a', 'g', 'e', ' ', \
1979 'N', 'e', 'g', 'o', 't', 'i', 'a', 't', 'o', 'r', 0}
1980
1981 static CHAR nego_comment_A[] = NEGO_COMMENT;
1982 static WCHAR nego_comment_W[] = NEGO_COMMENT;
1983
1984 #define NEGO_NAME {'N', 'e', 'g', 'o', 't', 'i', 'a', 't', 'e', 0}
1985
1986 static CHAR nego_name_A[] = NEGO_NAME;
1987 static WCHAR nego_name_W[] = NEGO_NAME;
1988
1989 #define NEGO_CAPS (\
1990 SECPKG_FLAG_INTEGRITY | \
1991 SECPKG_FLAG_PRIVACY | \
1992 SECPKG_FLAG_CONNECTION | \
1993 SECPKG_FLAG_MULTI_REQUIRED | \
1994 SECPKG_FLAG_EXTENDED_ERROR | \
1995 SECPKG_FLAG_IMPERSONATION | \
1996 SECPKG_FLAG_ACCEPT_WIN32_NAME | \
1997 SECPKG_FLAG_READONLY_WITH_CHECKSUM )
1998
1999 /* Not used for now, just kept here for completeness sake. We need to use the
2000 * NTLM_MAX_BUF value. If the hack works, we might want to refactor the code a
2001 * bit. */
2002 #define NEGO_MAX_TOKEN 12000
2003
2004 static const SecPkgInfoW nego_infoW = {
2005 NEGO_CAPS,
2006 1,
2007 RPC_C_AUTHN_GSS_NEGOTIATE,
2008 NTLM_MAX_BUF,
2009 nego_name_W,
2010 nego_comment_W
2011 };
2012
2013 static const SecPkgInfoA nego_infoA = {
2014 NEGO_CAPS,
2015 1,
2016 RPC_C_AUTHN_GSS_NEGOTIATE,
2017 NTLM_MAX_BUF,
2018 nego_name_A,
2019 nego_comment_A
2020 };
2021
2022 void SECUR32_initNTLMSP(void)
2023 {
2024 PNegoHelper helper;
2025 static CHAR version[] = "--version";
2026
2027 SEC_CHAR *args[] = {
2028 ntlm_auth,
2029 version,
2030 NULL };
2031
2032 if(fork_helper(&helper, ntlm_auth, args) != SEC_E_OK)
2033 helper = NULL;
2034 else
2035 check_version(helper);
2036
2037 if( helper &&
2038 ((helper->major > MIN_NTLM_AUTH_MAJOR_VERSION) ||
2039 (helper->major == MIN_NTLM_AUTH_MAJOR_VERSION &&
2040 helper->minor > MIN_NTLM_AUTH_MINOR_VERSION) ||
2041 (helper->major == MIN_NTLM_AUTH_MAJOR_VERSION &&
2042 helper->minor == MIN_NTLM_AUTH_MINOR_VERSION &&
2043 helper->micro >= MIN_NTLM_AUTH_MICRO_VERSION)) )
2044 {
2045 SecureProvider *provider = SECUR32_addProvider(&ntlmTableA, &ntlmTableW, NULL);
2046 SecureProvider *nego_provider = SECUR32_addProvider(&ntlmTableA, &ntlmTableW, NULL);
2047
2048 SECUR32_addPackages(provider, 1L, &infoA, &infoW);
2049 /* HACK: Also pretend this is the Negotiate provider */
2050 SECUR32_addPackages(nego_provider, 1L, &nego_infoA, &nego_infoW);
2051 }
2052 else
2053 {
2054 ERR_(winediag)("%s was not found or is outdated. "
2055 "Make sure that ntlm_auth >= %d.%d.%d is in your path. "
2056 "Usually, you can find it in the winbind package of your distribution.\n",
2057 ntlm_auth,
2058 MIN_NTLM_AUTH_MAJOR_VERSION,
2059 MIN_NTLM_AUTH_MINOR_VERSION,
2060 MIN_NTLM_AUTH_MICRO_VERSION);
2061
2062 }
2063 cleanup_helper(helper);
2064 }
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