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msi: Add tests for removing values from .ini files.
[wine/hacks.git] / dlls / secur32 / ntlm.c
bloba7330e221d9753f095213618854150e2aec31178
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
38 #define NTLM_MAX_BUF 1904
39 #define MIN_NTLM_AUTH_MAJOR_VERSION 3
40 #define MIN_NTLM_AUTH_MINOR_VERSION 0
41 #define MIN_NTLM_AUTH_MICRO_VERSION 25
42
43 static CHAR ntlm_auth[] = "ntlm_auth";
44
45 typedef struct _NtlmCredentials
46 {
47 HelperMode mode;
48
49 /* these are all in the Unix codepage */
50 char *username_arg;
51 char *domain_arg;
52 char *password; /* not nul-terminated */
53 int pwlen;
54 } NtlmCredentials, *PNtlmCredentials;
55
56 /***********************************************************************
57 * QueryCredentialsAttributesA
58 */
59 static SECURITY_STATUS SEC_ENTRY ntlm_QueryCredentialsAttributesA(
60 PCredHandle phCredential, ULONG ulAttribute, PVOID pBuffer)
61 {
62 SECURITY_STATUS ret;
63
64 TRACE("(%p, %d, %p)\n", phCredential, ulAttribute, pBuffer);
65
66 if(ulAttribute == SECPKG_ATTR_NAMES)
67 {
68 FIXME("SECPKG_CRED_ATTR_NAMES: stub\n");
69 ret = SEC_E_UNSUPPORTED_FUNCTION;
70 }
71 else
72 ret = SEC_E_UNSUPPORTED_FUNCTION;
73
74 return ret;
75 }
76
77 /***********************************************************************
78 * QueryCredentialsAttributesW
79 */
80 static SECURITY_STATUS SEC_ENTRY ntlm_QueryCredentialsAttributesW(
81 PCredHandle phCredential, ULONG ulAttribute, PVOID pBuffer)
82 {
83 SECURITY_STATUS ret;
84
85 TRACE("(%p, %d, %p)\n", phCredential, ulAttribute, pBuffer);
86
87 if(ulAttribute == SECPKG_ATTR_NAMES)
88 {
89 FIXME("SECPKG_CRED_ATTR_NAMES: stub\n");
90 ret = SEC_E_UNSUPPORTED_FUNCTION;
91 }
92 else
93 ret = SEC_E_UNSUPPORTED_FUNCTION;
94
95 return ret;
96 }
97
98 static char *ntlm_GetUsernameArg(LPCWSTR userW, INT userW_length)
99 {
100 static const char username_arg[] = "--username=";
101 char *user;
102 int unixcp_size;
103
104 unixcp_size = WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS,
105 userW, userW_length, NULL, 0, NULL, NULL) + sizeof(username_arg);
106 user = HeapAlloc(GetProcessHeap(), 0, unixcp_size);
107 if (!user) return NULL;
108 memcpy(user, username_arg, sizeof(username_arg) - 1);
109 WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS, userW, userW_length,
110 user + sizeof(username_arg) - 1,
111 unixcp_size - sizeof(username_arg) + 1, NULL, NULL);
112 user[unixcp_size - 1] = '\0';
113 return user;
114 }
115
116 static char *ntlm_GetDomainArg(LPCWSTR domainW, INT domainW_length)
117 {
118 static const char domain_arg[] = "--domain=";
119 char *domain;
120 int unixcp_size;
121
122 unixcp_size = WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS,
123 domainW, domainW_length, NULL, 0, NULL, NULL) + sizeof(domain_arg);
124 domain = HeapAlloc(GetProcessHeap(), 0, unixcp_size);
125 if (!domain) return NULL;
126 memcpy(domain, domain_arg, sizeof(domain_arg) - 1);
127 WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS, domainW,
128 domainW_length, domain + sizeof(domain_arg) - 1,
129 unixcp_size - sizeof(domain) + 1, NULL, NULL);
130 domain[unixcp_size - 1] = '\0';
131 return domain;
132 }
133
134 /***********************************************************************
135 * AcquireCredentialsHandleW
136 */
137 static SECURITY_STATUS SEC_ENTRY ntlm_AcquireCredentialsHandleW(
138 SEC_WCHAR *pszPrincipal, SEC_WCHAR *pszPackage, ULONG fCredentialUse,
139 PLUID pLogonID, PVOID pAuthData, SEC_GET_KEY_FN pGetKeyFn,
140 PVOID pGetKeyArgument, PCredHandle phCredential, PTimeStamp ptsExpiry)
141 {
142 SECURITY_STATUS ret;
143 PNtlmCredentials ntlm_cred = NULL;
144 SEC_WCHAR *username = NULL, *domain = NULL;
145
146 TRACE("(%s, %s, 0x%08x, %p, %p, %p, %p, %p, %p)\n",
147 debugstr_w(pszPrincipal), debugstr_w(pszPackage), fCredentialUse,
148 pLogonID, pAuthData, pGetKeyFn, pGetKeyArgument, phCredential, ptsExpiry);
149
150 switch(fCredentialUse)
151 {
152 case SECPKG_CRED_INBOUND:
153 ntlm_cred = HeapAlloc(GetProcessHeap(), 0, sizeof(*ntlm_cred));
154 if (!ntlm_cred)
155 ret = SEC_E_INSUFFICIENT_MEMORY;
156 else
157 {
158 ntlm_cred->mode = NTLM_SERVER;
159 ntlm_cred->username_arg = NULL;
160 ntlm_cred->domain_arg = NULL;
161 ntlm_cred->password = NULL;
162 ntlm_cred->pwlen = 0;
163 phCredential->dwUpper = fCredentialUse;
164 phCredential->dwLower = (ULONG_PTR)ntlm_cred;
165 ret = SEC_E_OK;
166 }
167 break;
168 case SECPKG_CRED_OUTBOUND:
169 {
170 ntlm_cred = HeapAlloc(GetProcessHeap(), 0, sizeof(*ntlm_cred));
171 if (!ntlm_cred)
172 {
173 ret = SEC_E_INSUFFICIENT_MEMORY;
174 break;
175 }
176 ntlm_cred->mode = NTLM_CLIENT;
177 ntlm_cred->username_arg = NULL;
178 ntlm_cred->domain_arg = NULL;
179 ntlm_cred->password = NULL;
180 ntlm_cred->pwlen = 0;
181
182 if(pAuthData != NULL)
183 {
184 PSEC_WINNT_AUTH_IDENTITY_W auth_data = pAuthData;
185
186 TRACE("Username is %s\n", debugstr_wn(auth_data->User, auth_data->UserLength));
187 TRACE("Domain name is %s\n", debugstr_wn(auth_data->Domain, auth_data->DomainLength));
188
189 ntlm_cred->username_arg = ntlm_GetUsernameArg(auth_data->User, auth_data->UserLength);
190 ntlm_cred->domain_arg = ntlm_GetDomainArg(auth_data->Domain, auth_data->DomainLength);
191
192 if(auth_data->PasswordLength != 0)
193 {
194 ntlm_cred->pwlen = WideCharToMultiByte(CP_UNIXCP,
195 WC_NO_BEST_FIT_CHARS, auth_data->Password,
196 auth_data->PasswordLength, NULL, 0, NULL,
197 NULL);
198
199 ntlm_cred->password = HeapAlloc(GetProcessHeap(), 0,
200 ntlm_cred->pwlen);
201
202 WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS,
203 auth_data->Password, auth_data->PasswordLength,
204 ntlm_cred->password, ntlm_cred->pwlen, NULL, NULL);
205 }
206 }
207
208 phCredential->dwUpper = fCredentialUse;
209 phCredential->dwLower = (ULONG_PTR)ntlm_cred;
210 TRACE("ACH phCredential->dwUpper: 0x%08lx, dwLower: 0x%08lx\n",
211 phCredential->dwUpper, phCredential->dwLower);
212 ret = SEC_E_OK;
213 break;
214 }
215 case SECPKG_CRED_BOTH:
216 FIXME("AcquireCredentialsHandle: SECPKG_CRED_BOTH stub\n");
217 ret = SEC_E_UNSUPPORTED_FUNCTION;
218 phCredential = NULL;
219 break;
220 default:
221 phCredential = NULL;
222 ret = SEC_E_UNKNOWN_CREDENTIALS;
223 }
224
225 HeapFree(GetProcessHeap(), 0, username);
226 HeapFree(GetProcessHeap(), 0, domain);
227
228 return ret;
229 }
230
231 /***********************************************************************
232 * AcquireCredentialsHandleA
233 */
234 static SECURITY_STATUS SEC_ENTRY ntlm_AcquireCredentialsHandleA(
235 SEC_CHAR *pszPrincipal, SEC_CHAR *pszPackage, ULONG fCredentialUse,
236 PLUID pLogonID, PVOID pAuthData, SEC_GET_KEY_FN pGetKeyFn,
237 PVOID pGetKeyArgument, PCredHandle phCredential, PTimeStamp ptsExpiry)
238 {
239 SECURITY_STATUS ret;
240 int user_sizeW, domain_sizeW, passwd_sizeW;
241
242 SEC_WCHAR *user = NULL, *domain = NULL, *passwd = NULL, *package = NULL;
243
244 PSEC_WINNT_AUTH_IDENTITY_W pAuthDataW = NULL;
245 PSEC_WINNT_AUTH_IDENTITY_A identity = NULL;
246
247 TRACE("(%s, %s, 0x%08x, %p, %p, %p, %p, %p, %p)\n",
248 debugstr_a(pszPrincipal), debugstr_a(pszPackage), fCredentialUse,
249 pLogonID, pAuthData, pGetKeyFn, pGetKeyArgument, phCredential, ptsExpiry);
250
251 if(pszPackage != NULL)
252 {
253 int package_sizeW = MultiByteToWideChar(CP_ACP, 0, pszPackage, -1,
254 NULL, 0);
255
256 package = HeapAlloc(GetProcessHeap(), 0, package_sizeW *
257 sizeof(SEC_WCHAR));
258 MultiByteToWideChar(CP_ACP, 0, pszPackage, -1, package, package_sizeW);
259 }
260
261
262 if(pAuthData != NULL)
263 {
264 identity = pAuthData;
265
266 if(identity->Flags == SEC_WINNT_AUTH_IDENTITY_ANSI)
267 {
268 pAuthDataW = HeapAlloc(GetProcessHeap(), 0,
269 sizeof(SEC_WINNT_AUTH_IDENTITY_W));
270
271 if(identity->UserLength != 0)
272 {
273 user_sizeW = MultiByteToWideChar(CP_ACP, 0,
274 (LPCSTR)identity->User, identity->UserLength, NULL, 0);
275 user = HeapAlloc(GetProcessHeap(), 0, user_sizeW *
276 sizeof(SEC_WCHAR));
277 MultiByteToWideChar(CP_ACP, 0, (LPCSTR)identity->User,
278 identity->UserLength, user, user_sizeW);
279 }
280 else
281 {
282 user_sizeW = 0;
283 }
284
285 if(identity->DomainLength != 0)
286 {
287 domain_sizeW = MultiByteToWideChar(CP_ACP, 0,
288 (LPCSTR)identity->Domain, identity->DomainLength, NULL, 0);
289 domain = HeapAlloc(GetProcessHeap(), 0, domain_sizeW
290 * sizeof(SEC_WCHAR));
291 MultiByteToWideChar(CP_ACP, 0, (LPCSTR)identity->Domain,
292 identity->DomainLength, domain, domain_sizeW);
293 }
294 else
295 {
296 domain_sizeW = 0;
297 }
298
299 if(identity->PasswordLength != 0)
300 {
301 passwd_sizeW = MultiByteToWideChar(CP_ACP, 0,
302 (LPCSTR)identity->Password, identity->PasswordLength,
303 NULL, 0);
304 passwd = HeapAlloc(GetProcessHeap(), 0, passwd_sizeW
305 * sizeof(SEC_WCHAR));
306 MultiByteToWideChar(CP_ACP, 0, (LPCSTR)identity->Password,
307 identity->PasswordLength, passwd, passwd_sizeW);
308 }
309 else
310 {
311 passwd_sizeW = 0;
312 }
313
314 pAuthDataW->Flags = SEC_WINNT_AUTH_IDENTITY_UNICODE;
315 pAuthDataW->User = user;
316 pAuthDataW->UserLength = user_sizeW;
317 pAuthDataW->Domain = domain;
318 pAuthDataW->DomainLength = domain_sizeW;
319 pAuthDataW->Password = passwd;
320 pAuthDataW->PasswordLength = passwd_sizeW;
321 }
322 else
323 {
324 pAuthDataW = (PSEC_WINNT_AUTH_IDENTITY_W)identity;
325 }
326 }
327
328 ret = ntlm_AcquireCredentialsHandleW(NULL, package, fCredentialUse,
329 pLogonID, pAuthDataW, pGetKeyFn, pGetKeyArgument, phCredential,
330 ptsExpiry);
331
332 HeapFree(GetProcessHeap(), 0, package);
333 HeapFree(GetProcessHeap(), 0, user);
334 HeapFree(GetProcessHeap(), 0, domain);
335 HeapFree(GetProcessHeap(), 0, passwd);
336 if(pAuthDataW != (PSEC_WINNT_AUTH_IDENTITY_W)identity)
337 HeapFree(GetProcessHeap(), 0, pAuthDataW);
338
339 return ret;
340 }
341
342 /*************************************************************************
343 * ntlm_GetTokenBufferIndex
344 * Calculates the index of the secbuffer with BufferType == SECBUFFER_TOKEN
345 * Returns index if found or -1 if not found.
346 */
347 static int ntlm_GetTokenBufferIndex(PSecBufferDesc pMessage)
348 {
349 UINT i;
350
351 TRACE("%p\n", pMessage);
352
353 for( i = 0; i < pMessage->cBuffers; ++i )
354 {
355 if(pMessage->pBuffers[i].BufferType == SECBUFFER_TOKEN)
356 return i;
357 }
358
359 return -1;
360 }
361
362 /*************************************************************************
363 * ntlm_GetDataBufferIndex
364 * Calculates the index of the first secbuffer with BufferType == SECBUFFER_DATA
365 * Returns index if found or -1 if not found.
366 */
367 static int ntlm_GetDataBufferIndex(PSecBufferDesc pMessage)
368 {
369 UINT i;
370
371 TRACE("%p\n", pMessage);
372
373 for( i = 0; i < pMessage->cBuffers; ++i )
374 {
375 if(pMessage->pBuffers[i].BufferType == SECBUFFER_DATA)
376 return i;
377 }
378
379 return -1;
380 }
381
382 static BOOL ntlm_GetCachedCredential(const SEC_WCHAR *pszTargetName, PCREDENTIALW *cred)
383 {
384 LPCWSTR p;
385 LPCWSTR pszHost;
386 LPWSTR pszHostOnly;
387 BOOL ret;
388
389 if (!pszTargetName)
390 return FALSE;
391
392 /* try to get the start of the hostname from service principal name (SPN) */
393 pszHost = strchrW(pszTargetName, '/');
394 if (pszHost)
395 {
396 /* skip slash character */
397 pszHost++;
398
399 /* find end of host by detecting start of instance port or start of referrer */
400 p = strchrW(pszHost, ':');
401 if (!p)
402 p = strchrW(pszHost, '/');
403 if (!p)
404 p = pszHost + strlenW(pszHost);
405 }
406 else /* otherwise not an SPN, just a host */
407 {
408 pszHost = pszTargetName;
409 p = pszHost + strlenW(pszHost);
410 }
411
412 pszHostOnly = HeapAlloc(GetProcessHeap(), 0, (p - pszHost + 1) * sizeof(WCHAR));
413 if (!pszHostOnly)
414 return FALSE;
415
416 memcpy(pszHostOnly, pszHost, (p - pszHost) * sizeof(WCHAR));
417 pszHostOnly[p - pszHost] = '\0';
418
419 ret = CredReadW(pszHostOnly, CRED_TYPE_DOMAIN_PASSWORD, 0, cred);
420
421 HeapFree(GetProcessHeap(), 0, pszHostOnly);
422 return ret;
423 }
424
425 /***********************************************************************
426 * InitializeSecurityContextW
427 */
428 static SECURITY_STATUS SEC_ENTRY ntlm_InitializeSecurityContextW(
429 PCredHandle phCredential, PCtxtHandle phContext, SEC_WCHAR *pszTargetName,
430 ULONG fContextReq, ULONG Reserved1, ULONG TargetDataRep,
431 PSecBufferDesc pInput, ULONG Reserved2, PCtxtHandle phNewContext,
432 PSecBufferDesc pOutput, ULONG *pfContextAttr, PTimeStamp ptsExpiry)
433 {
434 SECURITY_STATUS ret;
435 PNtlmCredentials ntlm_cred = NULL;
436 PNegoHelper helper = NULL;
437 ULONG ctxt_attr = 0;
438 char* buffer, *want_flags = NULL;
439 PBYTE bin;
440 int buffer_len, bin_len, max_len = NTLM_MAX_BUF;
441 int token_idx;
442 SEC_CHAR *username = NULL;
443 SEC_CHAR *domain = NULL;
444 SEC_CHAR *password = NULL;
445
446 TRACE("%p %p %s %d %d %d %p %d %p %p %p %p\n", phCredential, phContext,
447 debugstr_w(pszTargetName), fContextReq, Reserved1, TargetDataRep, pInput,
448 Reserved1, phNewContext, pOutput, pfContextAttr, ptsExpiry);
449
450 /****************************************
451 * When communicating with the client, there can be the
452 * following reply packets:
453 * YR <base64 blob> should be sent to the server
454 * PW should be sent back to helper with
455 * base64 encoded password
456 * AF <base64 blob> client is done, blob should be
457 * sent to server with KK prefixed
458 * GF <string list> A string list of negotiated flags
459 * GK <base64 blob> base64 encoded session key
460 * BH <char reason> something broke
461 */
462 /* The squid cache size is 2010 chars, and that's what ntlm_auth uses */
463
464 if(TargetDataRep == SECURITY_NETWORK_DREP){
465 TRACE("Setting SECURITY_NETWORK_DREP\n");
466 }
467
468 buffer = HeapAlloc(GetProcessHeap(), 0, sizeof(char) * NTLM_MAX_BUF);
469 bin = HeapAlloc(GetProcessHeap(), 0, sizeof(BYTE) * NTLM_MAX_BUF);
470
471 if((phContext == NULL) && (pInput == NULL))
472 {
473 static char helper_protocol[] = "--helper-protocol=ntlmssp-client-1";
474 static CHAR credentials_argv[] = "--use-cached-creds";
475 SEC_CHAR *client_argv[5];
476 int pwlen = 0;
477
478 TRACE("First time in ISC()\n");
479
480 if(!phCredential)
481 {
482 ret = SEC_E_INVALID_HANDLE;
483 goto isc_end;
484 }
485
486 /* As the server side of sspi never calls this, make sure that
487 * the handler is a client handler.
488 */
489 ntlm_cred = (PNtlmCredentials)phCredential->dwLower;
490 if(ntlm_cred->mode != NTLM_CLIENT)
491 {
492 TRACE("Cred mode = %d\n", ntlm_cred->mode);
493 ret = SEC_E_INVALID_HANDLE;
494 goto isc_end;
495 }
496
497 client_argv[0] = ntlm_auth;
498 client_argv[1] = helper_protocol;
499 if (!ntlm_cred->username_arg && !ntlm_cred->domain_arg)
500 {
501 LPWKSTA_USER_INFO_1 ui = NULL;
502 NET_API_STATUS status;
503 PCREDENTIALW cred;
504
505 if (ntlm_GetCachedCredential(pszTargetName, &cred))
506 {
507 LPWSTR p;
508 p = strchrW(cred->UserName, '\\');
509 if (p)
510 {
511 domain = ntlm_GetDomainArg(cred->UserName, p - cred->UserName);
512 p++;
513 }
514 else
515 {
516 domain = ntlm_GetDomainArg(NULL, 0);
517 p = cred->UserName;
518 }
519
520 username = ntlm_GetUsernameArg(p, -1);
521
522 if(cred->CredentialBlobSize != 0)
523 {
524 pwlen = WideCharToMultiByte(CP_UNIXCP,
525 WC_NO_BEST_FIT_CHARS, (LPWSTR)cred->CredentialBlob,
526 cred->CredentialBlobSize / sizeof(WCHAR), NULL, 0,
527 NULL, NULL);
528
529 password = HeapAlloc(GetProcessHeap(), 0, pwlen);
530
531 WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS,
532 (LPWSTR)cred->CredentialBlob,
533 cred->CredentialBlobSize / sizeof(WCHAR),
534 password, pwlen, NULL, NULL);
535 }
536
537 CredFree(cred);
538
539 client_argv[2] = username;
540 client_argv[3] = domain;
541 client_argv[4] = NULL;
542 }
543 else
544 {
545 status = NetWkstaUserGetInfo(NULL, 1, (LPBYTE *)&ui);
546 if (status != NERR_Success || ui == NULL)
547 {
548 ret = SEC_E_NO_CREDENTIALS;
549 goto isc_end;
550 }
551 username = ntlm_GetUsernameArg(ui->wkui1_username, -1);
552 NetApiBufferFree(ui);
553
554 TRACE("using cached credentials\n");
555
556 client_argv[2] = username;
557 client_argv[3] = credentials_argv;
558 client_argv[4] = NULL;
559 }
560 }
561 else
562 {
563 client_argv[2] = ntlm_cred->username_arg;
564 client_argv[3] = ntlm_cred->domain_arg;
565 client_argv[4] = NULL;
566 }
567
568 if((ret = fork_helper(&helper, ntlm_auth, client_argv)) != SEC_E_OK)
569 goto isc_end;
570
571 helper->mode = NTLM_CLIENT;
572 helper->session_key = HeapAlloc(GetProcessHeap(), 0, 16);
573 if (!helper->session_key)
574 {
575 cleanup_helper(helper);
576 ret = SEC_E_INSUFFICIENT_MEMORY;
577 goto isc_end;
578 }
579
580 /* Generate the dummy session key = MD4(MD4(password))*/
581 if(password || ntlm_cred->password)
582 {
583 SEC_WCHAR *unicode_password;
584 int passwd_lenW;
585
586 TRACE("Converting password to unicode.\n");
587 passwd_lenW = MultiByteToWideChar(CP_ACP, 0,
588 password ? password : ntlm_cred->password,
589 password ? pwlen : ntlm_cred->pwlen,
590 NULL, 0);
591 unicode_password = HeapAlloc(GetProcessHeap(), 0,
592 passwd_lenW * sizeof(SEC_WCHAR));
593 MultiByteToWideChar(CP_ACP, 0, password ? password : ntlm_cred->password,
594 password ? pwlen : ntlm_cred->pwlen, unicode_password, passwd_lenW);
595
596 SECUR32_CreateNTLMv1SessionKey((PBYTE)unicode_password,
597 passwd_lenW * sizeof(SEC_WCHAR), helper->session_key);
598
599 HeapFree(GetProcessHeap(), 0, unicode_password);
600 }
601 else
602 memset(helper->session_key, 0, 16);
603
604 /* Allocate space for a maximal string of
605 * "SF NTLMSSP_FEATURE_SIGN NTLMSSP_FEATURE_SEAL
606 * NTLMSSP_FEATURE_SESSION_KEY"
607 */
608 want_flags = HeapAlloc(GetProcessHeap(), 0, 73);
609 if(want_flags == NULL)
610 {
611 cleanup_helper(helper);
612 ret = SEC_E_INSUFFICIENT_MEMORY;
613 goto isc_end;
614 }
615 lstrcpyA(want_flags, "SF");
616 if(fContextReq & ISC_REQ_CONFIDENTIALITY)
617 {
618 if(strstr(want_flags, "NTLMSSP_FEATURE_SEAL") == NULL)
619 lstrcatA(want_flags, " NTLMSSP_FEATURE_SEAL");
620 }
621 if(fContextReq & ISC_REQ_CONNECTION)
622 ctxt_attr |= ISC_RET_CONNECTION;
623 if(fContextReq & ISC_REQ_EXTENDED_ERROR)
624 ctxt_attr |= ISC_RET_EXTENDED_ERROR;
625 if(fContextReq & ISC_REQ_INTEGRITY)
626 {
627 if(strstr(want_flags, "NTLMSSP_FEATURE_SIGN") == NULL)
628 lstrcatA(want_flags, " NTLMSSP_FEATURE_SIGN");
629 }
630 if(fContextReq & ISC_REQ_MUTUAL_AUTH)
631 ctxt_attr |= ISC_RET_MUTUAL_AUTH;
632 if(fContextReq & ISC_REQ_REPLAY_DETECT)
633 {
634 if(strstr(want_flags, "NTLMSSP_FEATURE_SIGN") == NULL)
635 lstrcatA(want_flags, " NTLMSSP_FEATURE_SIGN");
636 }
637 if(fContextReq & ISC_REQ_SEQUENCE_DETECT)
638 {
639 if(strstr(want_flags, "NTLMSSP_FEATURE_SIGN") == NULL)
640 lstrcatA(want_flags, " NTLMSSP_FEATURE_SIGN");
641 }
642 if(fContextReq & ISC_REQ_STREAM)
643 FIXME("ISC_REQ_STREAM\n");
644 if(fContextReq & ISC_REQ_USE_DCE_STYLE)
645 ctxt_attr |= ISC_RET_USED_DCE_STYLE;
646 if(fContextReq & ISC_REQ_DELEGATE)
647 ctxt_attr |= ISC_RET_DELEGATE;
648
649 /* If no password is given, try to use cached credentials. Fall back to an empty
650 * password if this failed. */
651 if(!password && !ntlm_cred->password)
652 {
653 lstrcpynA(buffer, "OK", max_len-1);
654 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
655 {
656 cleanup_helper(helper);
657 goto isc_end;
658 }
659 /* If the helper replied with "PW", using cached credentials failed */
660 if(!strncmp(buffer, "PW", 2))
661 {
662 TRACE("Using cached credentials failed.\n");
663 lstrcpynA(buffer, "PW AA==", max_len-1);
664 }
665 else /* Just do a noop on the next run */
666 lstrcpynA(buffer, "OK", max_len-1);
667 }
668 else
669 {
670 lstrcpynA(buffer, "PW ", max_len-1);
671 if((ret = encodeBase64(password ? (unsigned char *)password : (unsigned char *)ntlm_cred->password,
672 password ? pwlen : ntlm_cred->pwlen, buffer+3,
673 max_len-3, &buffer_len)) != SEC_E_OK)
674 {
675 cleanup_helper(helper);
676 goto isc_end;
677 }
678
679 }
680
681 TRACE("Sending to helper: %s\n", debugstr_a(buffer));
682 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
683 {
684 cleanup_helper(helper);
685 goto isc_end;
686 }
687
688 TRACE("Helper returned %s\n", debugstr_a(buffer));
689
690 if(lstrlenA(want_flags) > 2)
691 {
692 TRACE("Want flags are %s\n", debugstr_a(want_flags));
693 lstrcpynA(buffer, want_flags, max_len-1);
694 if((ret = run_helper(helper, buffer, max_len, &buffer_len))
695 != SEC_E_OK)
696 goto isc_end;
697 if(!strncmp(buffer, "BH", 2))
698 ERR("Helper doesn't understand new command set. Expect more things to fail.\n");
699 }
700
701 lstrcpynA(buffer, "YR", max_len-1);
702
703 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
704 {
705 cleanup_helper(helper);
706 goto isc_end;
707 }
708
709 TRACE("%s\n", buffer);
710
711 if(strncmp(buffer, "YR ", 3) != 0)
712 {
713 /* Something borked */
714 TRACE("Helper returned %c%c\n", buffer[0], buffer[1]);
715 ret = SEC_E_INTERNAL_ERROR;
716 cleanup_helper(helper);
717 goto isc_end;
718 }
719 if((ret = decodeBase64(buffer+3, buffer_len-3, bin,
720 max_len-1, &bin_len)) != SEC_E_OK)
721 {
722 cleanup_helper(helper);
723 goto isc_end;
724 }
725
726 /* put the decoded client blob into the out buffer */
727
728 phNewContext->dwUpper = ctxt_attr;
729 phNewContext->dwLower = (ULONG_PTR)helper;
730
731 ret = SEC_I_CONTINUE_NEEDED;
732 }
733 else
734 {
735 int input_token_idx;
736
737 /* handle second call here */
738 /* encode server data to base64 */
739 if (!pInput || ((input_token_idx = ntlm_GetTokenBufferIndex(pInput)) == -1))
740 {
741 ret = SEC_E_INVALID_TOKEN;
742 goto isc_end;
743 }
744
745 if(!phContext)
746 {
747 ret = SEC_E_INVALID_HANDLE;
748 goto isc_end;
749 }
750
751 /* As the server side of sspi never calls this, make sure that
752 * the handler is a client handler.
753 */
754 helper = (PNegoHelper)phContext->dwLower;
755 if(helper->mode != NTLM_CLIENT)
756 {
757 TRACE("Helper mode = %d\n", helper->mode);
758 ret = SEC_E_INVALID_HANDLE;
759 goto isc_end;
760 }
761
762 if (!pInput->pBuffers[input_token_idx].pvBuffer)
763 {
764 ret = SEC_E_INTERNAL_ERROR;
765 goto isc_end;
766 }
767
768 if(pInput->pBuffers[input_token_idx].cbBuffer > max_len)
769 {
770 TRACE("pInput->pBuffers[%d].cbBuffer is: %d\n",
771 input_token_idx,
772 pInput->pBuffers[input_token_idx].cbBuffer);
773 ret = SEC_E_INVALID_TOKEN;
774 goto isc_end;
775 }
776 else
777 bin_len = pInput->pBuffers[input_token_idx].cbBuffer;
778
779 memcpy(bin, pInput->pBuffers[input_token_idx].pvBuffer, bin_len);
780
781 lstrcpynA(buffer, "TT ", max_len-1);
782
783 if((ret = encodeBase64(bin, bin_len, buffer+3,
784 max_len-3, &buffer_len)) != SEC_E_OK)
785 goto isc_end;
786
787 TRACE("Server sent: %s\n", debugstr_a(buffer));
788
789 /* send TT base64 blob to ntlm_auth */
790 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
791 goto isc_end;
792
793 TRACE("Helper replied: %s\n", debugstr_a(buffer));
794
795 if( (strncmp(buffer, "KK ", 3) != 0) &&
796 (strncmp(buffer, "AF ", 3) !=0))
797 {
798 TRACE("Helper returned %c%c\n", buffer[0], buffer[1]);
799 ret = SEC_E_INVALID_TOKEN;
800 goto isc_end;
801 }
802
803 /* decode the blob and send it to server */
804 if((ret = decodeBase64(buffer+3, buffer_len-3, bin, max_len,
805 &bin_len)) != SEC_E_OK)
806 {
807 goto isc_end;
808 }
809
810 phNewContext->dwUpper = ctxt_attr;
811 phNewContext->dwLower = (ULONG_PTR)helper;
812
813 ret = SEC_E_OK;
814 }
815
816 /* put the decoded client blob into the out buffer */
817
818 if (!pOutput || ((token_idx = ntlm_GetTokenBufferIndex(pOutput)) == -1))
819 {
820 TRACE("no SECBUFFER_TOKEN buffer could be found\n");
821 ret = SEC_E_BUFFER_TOO_SMALL;
822 if ((phContext == NULL) && (pInput == NULL))
823 {
824 HeapFree(GetProcessHeap(), 0, helper->session_key);
825 cleanup_helper(helper);
826 phNewContext->dwUpper = 0;
827 phNewContext->dwLower = 0;
828 }
829 goto isc_end;
830 }
831
832 if (fContextReq & ISC_REQ_ALLOCATE_MEMORY)
833 {
834 pOutput->pBuffers[token_idx].pvBuffer = HeapAlloc(GetProcessHeap(), 0, bin_len);
835 pOutput->pBuffers[token_idx].cbBuffer = bin_len;
836 }
837 else if (pOutput->pBuffers[token_idx].cbBuffer < bin_len)
838 {
839 TRACE("out buffer is NULL or has not enough space\n");
840 ret = SEC_E_BUFFER_TOO_SMALL;
841 if ((phContext == NULL) && (pInput == NULL))
842 {
843 HeapFree(GetProcessHeap(), 0, helper->session_key);
844 cleanup_helper(helper);
845 phNewContext->dwUpper = 0;
846 phNewContext->dwLower = 0;
847 }
848 goto isc_end;
849 }
850
851 if (!pOutput->pBuffers[token_idx].pvBuffer)
852 {
853 TRACE("out buffer is NULL\n");
854 ret = SEC_E_INTERNAL_ERROR;
855 if ((phContext == NULL) && (pInput == NULL))
856 {
857 HeapFree(GetProcessHeap(), 0, helper->session_key);
858 cleanup_helper(helper);
859 phNewContext->dwUpper = 0;
860 phNewContext->dwLower = 0;
861 }
862 goto isc_end;
863 }
864
865 pOutput->pBuffers[token_idx].cbBuffer = bin_len;
866 memcpy(pOutput->pBuffers[token_idx].pvBuffer, bin, bin_len);
867
868 if(ret == SEC_E_OK)
869 {
870 TRACE("Getting negotiated flags\n");
871 lstrcpynA(buffer, "GF", max_len - 1);
872 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
873 goto isc_end;
874
875 if(buffer_len < 3)
876 {
877 TRACE("No flags negotiated.\n");
878 helper->neg_flags = 0l;
879 }
880 else
881 {
882 TRACE("Negotiated %s\n", debugstr_a(buffer));
883 sscanf(buffer + 3, "%lx", &(helper->neg_flags));
884 TRACE("Stored 0x%08lx as flags\n", helper->neg_flags);
885 }
886
887 TRACE("Getting session key\n");
888 lstrcpynA(buffer, "GK", max_len - 1);
889 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
890 goto isc_end;
891
892 if(strncmp(buffer, "BH", 2) == 0)
893 TRACE("No key negotiated.\n");
894 else if(strncmp(buffer, "GK ", 3) == 0)
895 {
896 if((ret = decodeBase64(buffer+3, buffer_len-3, bin, max_len,
897 &bin_len)) != SEC_E_OK)
898 {
899 TRACE("Failed to decode session key\n");
900 }
901 TRACE("Session key is %s\n", debugstr_a(buffer+3));
902 HeapFree(GetProcessHeap(), 0, helper->session_key);
903 helper->session_key = HeapAlloc(GetProcessHeap(), 0, bin_len);
904 if(!helper->session_key)
905 {
906 TRACE("Failed to allocate memory for session key\n");
907 ret = SEC_E_INTERNAL_ERROR;
908 goto isc_end;
909 }
910 memcpy(helper->session_key, bin, bin_len);
911 }
912
913 helper->crypt.ntlm.a4i = SECUR32_arc4Alloc();
914 SECUR32_arc4Init(helper->crypt.ntlm.a4i, helper->session_key, 16);
915 helper->crypt.ntlm.seq_num = 0l;
916 SECUR32_CreateNTLMv2SubKeys(helper);
917 helper->crypt.ntlm2.send_a4i = SECUR32_arc4Alloc();
918 helper->crypt.ntlm2.recv_a4i = SECUR32_arc4Alloc();
919 SECUR32_arc4Init(helper->crypt.ntlm2.send_a4i,
920 helper->crypt.ntlm2.send_seal_key, 16);
921 SECUR32_arc4Init(helper->crypt.ntlm2.recv_a4i,
922 helper->crypt.ntlm2.recv_seal_key, 16);
923 helper->crypt.ntlm2.send_seq_no = 0l;
924 helper->crypt.ntlm2.recv_seq_no = 0l;
925 }
926
927 isc_end:
928 HeapFree(GetProcessHeap(), 0, username);
929 HeapFree(GetProcessHeap(), 0, domain);
930 HeapFree(GetProcessHeap(), 0, password);
931 HeapFree(GetProcessHeap(), 0, want_flags);
932 HeapFree(GetProcessHeap(), 0, buffer);
933 HeapFree(GetProcessHeap(), 0, bin);
934 return ret;
935 }
936
937 /***********************************************************************
938 * InitializeSecurityContextA
939 */
940 static SECURITY_STATUS SEC_ENTRY ntlm_InitializeSecurityContextA(
941 PCredHandle phCredential, PCtxtHandle phContext, SEC_CHAR *pszTargetName,
942 ULONG fContextReq, ULONG Reserved1, ULONG TargetDataRep,
943 PSecBufferDesc pInput,ULONG Reserved2, PCtxtHandle phNewContext,
944 PSecBufferDesc pOutput, ULONG *pfContextAttr, PTimeStamp ptsExpiry)
945 {
946 SECURITY_STATUS ret;
947 SEC_WCHAR *target = NULL;
948
949 TRACE("%p %p %s %d %d %d %p %d %p %p %p %p\n", phCredential, phContext,
950 debugstr_a(pszTargetName), fContextReq, Reserved1, TargetDataRep, pInput,
951 Reserved1, phNewContext, pOutput, pfContextAttr, ptsExpiry);
952
953 if(pszTargetName != NULL)
954 {
955 int target_size = MultiByteToWideChar(CP_ACP, 0, pszTargetName,
956 strlen(pszTargetName)+1, NULL, 0);
957 target = HeapAlloc(GetProcessHeap(), 0, target_size *
958 sizeof(SEC_WCHAR));
959 MultiByteToWideChar(CP_ACP, 0, pszTargetName, strlen(pszTargetName)+1,
960 target, target_size);
961 }
962
963 ret = ntlm_InitializeSecurityContextW(phCredential, phContext, target,
964 fContextReq, Reserved1, TargetDataRep, pInput, Reserved2,
965 phNewContext, pOutput, pfContextAttr, ptsExpiry);
966
967 HeapFree(GetProcessHeap(), 0, target);
968 return ret;
969 }
970
971 /***********************************************************************
972 * AcceptSecurityContext
973 */
974 static SECURITY_STATUS SEC_ENTRY ntlm_AcceptSecurityContext(
975 PCredHandle phCredential, PCtxtHandle phContext, PSecBufferDesc pInput,
976 ULONG fContextReq, ULONG TargetDataRep, PCtxtHandle phNewContext,
977 PSecBufferDesc pOutput, ULONG *pfContextAttr, PTimeStamp ptsExpiry)
978 {
979 SECURITY_STATUS ret;
980 char *buffer, *want_flags = NULL;
981 PBYTE bin;
982 int buffer_len, bin_len, max_len = NTLM_MAX_BUF;
983 ULONG ctxt_attr = 0;
984 PNegoHelper helper;
985 PNtlmCredentials ntlm_cred;
986
987 TRACE("%p %p %p %d %d %p %p %p %p\n", phCredential, phContext, pInput,
988 fContextReq, TargetDataRep, phNewContext, pOutput, pfContextAttr,
989 ptsExpiry);
990
991 buffer = HeapAlloc(GetProcessHeap(), 0, sizeof(char) * NTLM_MAX_BUF);
992 bin = HeapAlloc(GetProcessHeap(),0, sizeof(BYTE) * NTLM_MAX_BUF);
993
994 if(TargetDataRep == SECURITY_NETWORK_DREP){
995 TRACE("Using SECURITY_NETWORK_DREP\n");
996 }
997
998 if(phContext == NULL)
999 {
1000 static CHAR server_helper_protocol[] = "--helper-protocol=squid-2.5-ntlmssp";
1001 SEC_CHAR *server_argv[] = { ntlm_auth,
1002 server_helper_protocol,
1003 NULL };
1004
1005 if (!phCredential)
1006 {
1007 ret = SEC_E_INVALID_HANDLE;
1008 goto asc_end;
1009 }
1010
1011 ntlm_cred = (PNtlmCredentials)phCredential->dwLower;
1012
1013 if(ntlm_cred->mode != NTLM_SERVER)
1014 {
1015 ret = SEC_E_INVALID_HANDLE;
1016 goto asc_end;
1017 }
1018
1019 /* This is the first call to AcceptSecurityHandle */
1020 if(pInput == NULL)
1021 {
1022 ret = SEC_E_INCOMPLETE_MESSAGE;
1023 goto asc_end;
1024 }
1025
1026 if(pInput->cBuffers < 1)
1027 {
1028 ret = SEC_E_INCOMPLETE_MESSAGE;
1029 goto asc_end;
1030 }
1031
1032 if(pInput->pBuffers[0].cbBuffer > max_len)
1033 {
1034 ret = SEC_E_INVALID_TOKEN;
1035 goto asc_end;
1036 }
1037 else
1038 bin_len = pInput->pBuffers[0].cbBuffer;
1039
1040 if( (ret = fork_helper(&helper, ntlm_auth, server_argv)) !=
1041 SEC_E_OK)
1042 {
1043 ret = SEC_E_INTERNAL_ERROR;
1044 goto asc_end;
1045 }
1046 helper->mode = NTLM_SERVER;
1047
1048 /* Handle all the flags */
1049 want_flags = HeapAlloc(GetProcessHeap(), 0, 73);
1050 if(want_flags == NULL)
1051 {
1052 TRACE("Failed to allocate memory for the want_flags!\n");
1053 ret = SEC_E_INSUFFICIENT_MEMORY;
1054 cleanup_helper(helper);
1055 goto asc_end;
1056 }
1057 lstrcpyA(want_flags, "SF");
1058 if(fContextReq & ASC_REQ_ALLOCATE_MEMORY)
1059 {
1060 FIXME("ASC_REQ_ALLOCATE_MEMORY stub\n");
1061 }
1062 if(fContextReq & ASC_REQ_CONFIDENTIALITY)
1063 {
1064 lstrcatA(want_flags, " NTLMSSP_FEATURE_SEAL");
1065 }
1066 if(fContextReq & ASC_REQ_CONNECTION)
1067 {
1068 /* This is default, so we'll enable it */
1069 lstrcatA(want_flags, " NTLMSSP_FEATURE_SESSION_KEY");
1070 ctxt_attr |= ASC_RET_CONNECTION;
1071 }
1072 if(fContextReq & ASC_REQ_EXTENDED_ERROR)
1073 {
1074 FIXME("ASC_REQ_EXTENDED_ERROR stub\n");
1075 }
1076 if(fContextReq & ASC_REQ_INTEGRITY)
1077 {
1078 lstrcatA(want_flags, " NTLMSSP_FEATURE_SIGN");
1079 }
1080 if(fContextReq & ASC_REQ_MUTUAL_AUTH)
1081 {
1082 FIXME("ASC_REQ_MUTUAL_AUTH stub\n");
1083 }
1084 if(fContextReq & ASC_REQ_REPLAY_DETECT)
1085 {
1086 FIXME("ASC_REQ_REPLAY_DETECT stub\n");
1087 }
1088 if(fContextReq & ISC_REQ_SEQUENCE_DETECT)
1089 {
1090 FIXME("ASC_REQ_SEQUENCE_DETECT stub\n");
1091 }
1092 if(fContextReq & ISC_REQ_STREAM)
1093 {
1094 FIXME("ASC_REQ_STREAM stub\n");
1095 }
1096 /* Done with the flags */
1097
1098 if(lstrlenA(want_flags) > 3)
1099 {
1100 TRACE("Server set want_flags: %s\n", debugstr_a(want_flags));
1101 lstrcpynA(buffer, want_flags, max_len - 1);
1102 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) !=
1103 SEC_E_OK)
1104 {
1105 cleanup_helper(helper);
1106 goto asc_end;
1107 }
1108 if(!strncmp(buffer, "BH", 2))
1109 TRACE("Helper doesn't understand new command set\n");
1110 }
1111
1112 /* This is the YR request from the client, encode to base64 */
1113
1114 memcpy(bin, pInput->pBuffers[0].pvBuffer, bin_len);
1115
1116 lstrcpynA(buffer, "YR ", max_len-1);
1117
1118 if((ret = encodeBase64(bin, bin_len, buffer+3, max_len-3,
1119 &buffer_len)) != SEC_E_OK)
1120 {
1121 cleanup_helper(helper);
1122 goto asc_end;
1123 }
1124
1125 TRACE("Client sent: %s\n", debugstr_a(buffer));
1126
1127 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) !=
1128 SEC_E_OK)
1129 {
1130 cleanup_helper(helper);
1131 goto asc_end;
1132 }
1133
1134 TRACE("Reply from ntlm_auth: %s\n", debugstr_a(buffer));
1135 /* The expected answer is TT <base64 blob> */
1136
1137 if(strncmp(buffer, "TT ", 3) != 0)
1138 {
1139 ret = SEC_E_INTERNAL_ERROR;
1140 cleanup_helper(helper);
1141 goto asc_end;
1142 }
1143
1144 if((ret = decodeBase64(buffer+3, buffer_len-3, bin, max_len,
1145 &bin_len)) != SEC_E_OK)
1146 {
1147 cleanup_helper(helper);
1148 goto asc_end;
1149 }
1150
1151 /* send this to the client */
1152 if(pOutput == NULL)
1153 {
1154 ret = SEC_E_INSUFFICIENT_MEMORY;
1155 cleanup_helper(helper);
1156 goto asc_end;
1157 }
1158
1159 if(pOutput->cBuffers < 1)
1160 {
1161 ret = SEC_E_INSUFFICIENT_MEMORY;
1162 cleanup_helper(helper);
1163 goto asc_end;
1164 }
1165
1166 pOutput->pBuffers[0].cbBuffer = bin_len;
1167 pOutput->pBuffers[0].BufferType = SECBUFFER_DATA;
1168 memcpy(pOutput->pBuffers[0].pvBuffer, bin, bin_len);
1169 ret = SEC_I_CONTINUE_NEEDED;
1170
1171 }
1172 else
1173 {
1174 /* we expect a KK request from client */
1175 if(pInput == NULL)
1176 {
1177 ret = SEC_E_INCOMPLETE_MESSAGE;
1178 goto asc_end;
1179 }
1180
1181 if(pInput->cBuffers < 1)
1182 {
1183 ret = SEC_E_INCOMPLETE_MESSAGE;
1184 goto asc_end;
1185 }
1186
1187 if(!phContext)
1188 {
1189 ret = SEC_E_INVALID_HANDLE;
1190 goto asc_end;
1191 }
1192
1193 helper = (PNegoHelper)phContext->dwLower;
1194
1195 if(helper->mode != NTLM_SERVER)
1196 {
1197 ret = SEC_E_INVALID_HANDLE;
1198 goto asc_end;
1199 }
1200
1201 if(pInput->pBuffers[0].cbBuffer > max_len)
1202 {
1203 ret = SEC_E_INVALID_TOKEN;
1204 goto asc_end;
1205 }
1206 else
1207 bin_len = pInput->pBuffers[0].cbBuffer;
1208
1209 memcpy(bin, pInput->pBuffers[0].pvBuffer, bin_len);
1210
1211 lstrcpynA(buffer, "KK ", max_len-1);
1212
1213 if((ret = encodeBase64(bin, bin_len, buffer+3, max_len-3,
1214 &buffer_len)) != SEC_E_OK)
1215 {
1216 goto asc_end;
1217 }
1218
1219 TRACE("Client sent: %s\n", debugstr_a(buffer));
1220
1221 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) !=
1222 SEC_E_OK)
1223 {
1224 goto asc_end;
1225 }
1226
1227 TRACE("Reply from ntlm_auth: %s\n", debugstr_a(buffer));
1228
1229 /* At this point, we get a NA if the user didn't authenticate, but a BH
1230 * if ntlm_auth could not connect to winbindd. Apart from running Wine
1231 * as root, there is no way to fix this for now, so just handle this as
1232 * a failed login. */
1233 if(strncmp(buffer, "AF ", 3) != 0)
1234 {
1235 if(strncmp(buffer, "NA ", 3) == 0)
1236 {
1237 ret = SEC_E_LOGON_DENIED;
1238 goto asc_end;
1239 }
1240 else
1241 {
1242 size_t ntlm_pipe_err_len = strlen("BH NT_STATUS_ACCESS_DENIED");
1243
1244 if( (buffer_len >= ntlm_pipe_err_len) &&
1245 (strncmp(buffer, "BH NT_STATUS_ACCESS_DENIED",
1246 ntlm_pipe_err_len) == 0))
1247 {
1248 TRACE("Connection to winbindd failed\n");
1249 ret = SEC_E_LOGON_DENIED;
1250 }
1251 else
1252 ret = SEC_E_INTERNAL_ERROR;
1253
1254 goto asc_end;
1255 }
1256 }
1257 pOutput->pBuffers[0].cbBuffer = 0;
1258 ret = SEC_E_OK;
1259
1260 TRACE("Getting negotiated flags\n");
1261 lstrcpynA(buffer, "GF", max_len - 1);
1262 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
1263 goto asc_end;
1264
1265 if(buffer_len < 3)
1266 {
1267 TRACE("No flags negotiated, or helper does not support GF command\n");
1268 }
1269 else
1270 {
1271 TRACE("Negotiated %s\n", debugstr_a(buffer));
1272 sscanf(buffer + 3, "%lx", &(helper->neg_flags));
1273 TRACE("Stored 0x%08lx as flags\n", helper->neg_flags);
1274 }
1275
1276 TRACE("Getting session key\n");
1277 lstrcpynA(buffer, "GK", max_len - 1);
1278 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
1279 goto asc_end;
1280
1281 if(buffer_len < 3)
1282 TRACE("Helper does not support GK command\n");
1283 else
1284 {
1285 if(strncmp(buffer, "BH ", 3) == 0)
1286 {
1287 TRACE("Helper sent %s\n", debugstr_a(buffer+3));
1288 helper->session_key = HeapAlloc(GetProcessHeap(), 0, 16);
1289 /*FIXME: Generate the dummy session key = MD4(MD4(password))*/
1290 memset(helper->session_key, 0 , 16);
1291 }
1292 else if(strncmp(buffer, "GK ", 3) == 0)
1293 {
1294 if((ret = decodeBase64(buffer+3, buffer_len-3, bin, max_len,
1295 &bin_len)) != SEC_E_OK)
1296 {
1297 TRACE("Failed to decode session key\n");
1298 }
1299 TRACE("Session key is %s\n", debugstr_a(buffer+3));
1300 helper->session_key = HeapAlloc(GetProcessHeap(), 0, 16);
1301 if(!helper->session_key)
1302 {
1303 TRACE("Failed to allocate memory for session key\n");
1304 ret = SEC_E_INTERNAL_ERROR;
1305 goto asc_end;
1306 }
1307 memcpy(helper->session_key, bin, 16);
1308 }
1309 }
1310 helper->crypt.ntlm.a4i = SECUR32_arc4Alloc();
1311 SECUR32_arc4Init(helper->crypt.ntlm.a4i, helper->session_key, 16);
1312 helper->crypt.ntlm.seq_num = 0l;
1313 }
1314
1315 phNewContext->dwUpper = ctxt_attr;
1316 phNewContext->dwLower = (ULONG_PTR)helper;
1317
1318 asc_end:
1319 HeapFree(GetProcessHeap(), 0, want_flags);
1320 HeapFree(GetProcessHeap(), 0, buffer);
1321 HeapFree(GetProcessHeap(), 0, bin);
1322 return ret;
1323 }
1324
1325 /***********************************************************************
1326 * CompleteAuthToken
1327 */
1328 static SECURITY_STATUS SEC_ENTRY ntlm_CompleteAuthToken(PCtxtHandle phContext,
1329 PSecBufferDesc pToken)
1330 {
1331 /* We never need to call CompleteAuthToken anyway */
1332 TRACE("%p %p\n", phContext, pToken);
1333 if (!phContext)
1334 return SEC_E_INVALID_HANDLE;
1335
1336 return SEC_E_OK;
1337 }
1338
1339 /***********************************************************************
1340 * DeleteSecurityContext
1341 */
1342 static SECURITY_STATUS SEC_ENTRY ntlm_DeleteSecurityContext(PCtxtHandle phContext)
1343 {
1344 PNegoHelper helper;
1345
1346 TRACE("%p\n", phContext);
1347 if (!phContext)
1348 return SEC_E_INVALID_HANDLE;
1349
1350 helper = (PNegoHelper)phContext->dwLower;
1351
1352 phContext->dwUpper = 0;
1353 phContext->dwLower = 0;
1354
1355 SECUR32_arc4Cleanup(helper->crypt.ntlm.a4i);
1356 HeapFree(GetProcessHeap(), 0, helper->session_key);
1357 SECUR32_arc4Cleanup(helper->crypt.ntlm2.send_a4i);
1358 SECUR32_arc4Cleanup(helper->crypt.ntlm2.recv_a4i);
1359 HeapFree(GetProcessHeap(), 0, helper->crypt.ntlm2.send_sign_key);
1360 HeapFree(GetProcessHeap(), 0, helper->crypt.ntlm2.send_seal_key);
1361 HeapFree(GetProcessHeap(), 0, helper->crypt.ntlm2.recv_sign_key);
1362 HeapFree(GetProcessHeap(), 0, helper->crypt.ntlm2.recv_seal_key);
1363
1364 cleanup_helper(helper);
1365
1366 return SEC_E_OK;
1367 }
1368
1369 /***********************************************************************
1370 * QueryContextAttributesW
1371 */
1372 static SECURITY_STATUS SEC_ENTRY ntlm_QueryContextAttributesW(PCtxtHandle phContext,
1373 ULONG ulAttribute, void *pBuffer)
1374 {
1375 TRACE("%p %d %p\n", phContext, ulAttribute, pBuffer);
1376 if (!phContext)
1377 return SEC_E_INVALID_HANDLE;
1378
1379 switch(ulAttribute)
1380 {
1381 #define _x(x) case (x) : FIXME(#x" stub\n"); break
1382 _x(SECPKG_ATTR_ACCESS_TOKEN);
1383 _x(SECPKG_ATTR_AUTHORITY);
1384 _x(SECPKG_ATTR_DCE_INFO);
1385 case SECPKG_ATTR_FLAGS:
1386 {
1387 PSecPkgContext_Flags spcf = (PSecPkgContext_Flags)pBuffer;
1388 PNegoHelper helper = (PNegoHelper)phContext->dwLower;
1389
1390 spcf->Flags = 0;
1391 if(helper->neg_flags & NTLMSSP_NEGOTIATE_SIGN)
1392 spcf->Flags |= ISC_RET_INTEGRITY;
1393 if(helper->neg_flags & NTLMSSP_NEGOTIATE_SEAL)
1394 spcf->Flags |= ISC_RET_CONFIDENTIALITY;
1395 return SEC_E_OK;
1396 }
1397 _x(SECPKG_ATTR_KEY_INFO);
1398 _x(SECPKG_ATTR_LIFESPAN);
1399 _x(SECPKG_ATTR_NAMES);
1400 _x(SECPKG_ATTR_NATIVE_NAMES);
1401 _x(SECPKG_ATTR_NEGOTIATION_INFO);
1402 _x(SECPKG_ATTR_PACKAGE_INFO);
1403 _x(SECPKG_ATTR_PASSWORD_EXPIRY);
1404 _x(SECPKG_ATTR_SESSION_KEY);
1405 case SECPKG_ATTR_SIZES:
1406 {
1407 PSecPkgContext_Sizes spcs = (PSecPkgContext_Sizes)pBuffer;
1408 spcs->cbMaxToken = NTLM_MAX_BUF;
1409 spcs->cbMaxSignature = 16;
1410 spcs->cbBlockSize = 0;
1411 spcs->cbSecurityTrailer = 16;
1412 return SEC_E_OK;
1413 }
1414 _x(SECPKG_ATTR_STREAM_SIZES);
1415 _x(SECPKG_ATTR_TARGET_INFORMATION);
1416 #undef _x
1417 default:
1418 TRACE("Unknown value %d passed for ulAttribute\n", ulAttribute);
1419 }
1420
1421 return SEC_E_UNSUPPORTED_FUNCTION;
1422 }
1423
1424 /***********************************************************************
1425 * QueryContextAttributesA
1426 */
1427 static SECURITY_STATUS SEC_ENTRY ntlm_QueryContextAttributesA(PCtxtHandle phContext,
1428 ULONG ulAttribute, void *pBuffer)
1429 {
1430 return ntlm_QueryContextAttributesW(phContext, ulAttribute, pBuffer);
1431 }
1432
1433 /***********************************************************************
1434 * ImpersonateSecurityContext
1435 */
1436 static SECURITY_STATUS SEC_ENTRY ntlm_ImpersonateSecurityContext(PCtxtHandle phContext)
1437 {
1438 SECURITY_STATUS ret;
1439
1440 TRACE("%p\n", phContext);
1441 if (phContext)
1442 {
1443 ret = SEC_E_UNSUPPORTED_FUNCTION;
1444 }
1445 else
1446 {
1447 ret = SEC_E_INVALID_HANDLE;
1448 }
1449 return ret;
1450 }
1451
1452 /***********************************************************************
1453 * RevertSecurityContext
1454 */
1455 static SECURITY_STATUS SEC_ENTRY ntlm_RevertSecurityContext(PCtxtHandle phContext)
1456 {
1457 SECURITY_STATUS ret;
1458
1459 TRACE("%p\n", phContext);
1460 if (phContext)
1461 {
1462 ret = SEC_E_UNSUPPORTED_FUNCTION;
1463 }
1464 else
1465 {
1466 ret = SEC_E_INVALID_HANDLE;
1467 }
1468 return ret;
1469 }
1470
1471 /***********************************************************************
1472 * ntlm_CreateSignature
1473 * As both MakeSignature and VerifySignature need this, but different keys
1474 * are needed for NTLMv2, the logic goes into a helper function.
1475 * To ensure maximal reusability, we can specify the direction as NTLM_SEND for
1476 * signing/encrypting and NTLM_RECV for verfying/decrypting. When encrypting,
1477 * the signature is encrypted after the message was encrypted, so
1478 * CreateSignature shouldn't do it. In this case, encrypt_sig can be set to
1479 * false.
1480 */
1481 static SECURITY_STATUS ntlm_CreateSignature(PNegoHelper helper, PSecBufferDesc pMessage,
1482 int token_idx, SignDirection direction, BOOL encrypt_sig)
1483 {
1484 ULONG sign_version = 1;
1485 UINT i;
1486 PBYTE sig;
1487 TRACE("%p, %p, %d, %d, %d\n", helper, pMessage, token_idx, direction,
1488 encrypt_sig);
1489
1490 sig = pMessage->pBuffers[token_idx].pvBuffer;
1491
1492 if(helper->neg_flags & NTLMSSP_NEGOTIATE_NTLM2 &&
1493 helper->neg_flags & NTLMSSP_NEGOTIATE_SIGN)
1494 {
1495 BYTE digest[16];
1496 BYTE seq_no[4];
1497 HMAC_MD5_CTX hmac_md5_ctx;
1498
1499 TRACE("Signing NTLM2 style\n");
1500
1501 if(direction == NTLM_SEND)
1502 {
1503 seq_no[0] = (helper->crypt.ntlm2.send_seq_no >> 0) & 0xff;
1504 seq_no[1] = (helper->crypt.ntlm2.send_seq_no >> 8) & 0xff;
1505 seq_no[2] = (helper->crypt.ntlm2.send_seq_no >> 16) & 0xff;
1506 seq_no[3] = (helper->crypt.ntlm2.send_seq_no >> 24) & 0xff;
1507
1508 ++(helper->crypt.ntlm2.send_seq_no);
1509
1510 HMACMD5Init(&hmac_md5_ctx, helper->crypt.ntlm2.send_sign_key, 16);
1511 }
1512 else
1513 {
1514 seq_no[0] = (helper->crypt.ntlm2.recv_seq_no >> 0) & 0xff;
1515 seq_no[1] = (helper->crypt.ntlm2.recv_seq_no >> 8) & 0xff;
1516 seq_no[2] = (helper->crypt.ntlm2.recv_seq_no >> 16) & 0xff;
1517 seq_no[3] = (helper->crypt.ntlm2.recv_seq_no >> 24) & 0xff;
1518
1519 ++(helper->crypt.ntlm2.recv_seq_no);
1520
1521 HMACMD5Init(&hmac_md5_ctx, helper->crypt.ntlm2.recv_sign_key, 16);
1522 }
1523
1524 HMACMD5Update(&hmac_md5_ctx, seq_no, 4);
1525 for( i = 0; i < pMessage->cBuffers; ++i )
1526 {
1527 if(pMessage->pBuffers[i].BufferType & SECBUFFER_DATA)
1528 HMACMD5Update(&hmac_md5_ctx, pMessage->pBuffers[i].pvBuffer,
1529 pMessage->pBuffers[i].cbBuffer);
1530 }
1531
1532 HMACMD5Final(&hmac_md5_ctx, digest);
1533
1534 if(encrypt_sig && helper->neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCHANGE)
1535 {
1536 if(direction == NTLM_SEND)
1537 SECUR32_arc4Process(helper->crypt.ntlm2.send_a4i, digest, 8);
1538 else
1539 SECUR32_arc4Process(helper->crypt.ntlm2.recv_a4i, digest, 8);
1540 }
1541
1542 /* The NTLM2 signature is the sign version */
1543 sig[ 0] = (sign_version >> 0) & 0xff;
1544 sig[ 1] = (sign_version >> 8) & 0xff;
1545 sig[ 2] = (sign_version >> 16) & 0xff;
1546 sig[ 3] = (sign_version >> 24) & 0xff;
1547 /* The first 8 bytes of the digest */
1548 memcpy(sig+4, digest, 8);
1549 /* And the sequence number */
1550 memcpy(sig+12, seq_no, 4);
1551
1552 pMessage->pBuffers[token_idx].cbBuffer = 16;
1553
1554 return SEC_E_OK;
1555 }
1556 if(helper->neg_flags & NTLMSSP_NEGOTIATE_SIGN)
1557 {
1558 ULONG crc = 0U;
1559 TRACE("Signing NTLM1 style\n");
1560
1561 for(i=0; i < pMessage->cBuffers; ++i)
1562 {
1563 if(pMessage->pBuffers[i].BufferType & SECBUFFER_DATA)
1564 {
1565 crc = ComputeCrc32(pMessage->pBuffers[i].pvBuffer,
1566 pMessage->pBuffers[i].cbBuffer, crc);
1567 }
1568 }
1569
1570 sig[ 0] = (sign_version >> 0) & 0xff;
1571 sig[ 1] = (sign_version >> 8) & 0xff;
1572 sig[ 2] = (sign_version >> 16) & 0xff;
1573 sig[ 3] = (sign_version >> 24) & 0xff;
1574 memset(sig+4, 0, 4);
1575 sig[ 8] = (crc >> 0) & 0xff;
1576 sig[ 9] = (crc >> 8) & 0xff;
1577 sig[10] = (crc >> 16) & 0xff;
1578 sig[11] = (crc >> 24) & 0xff;
1579 sig[12] = (helper->crypt.ntlm.seq_num >> 0) & 0xff;
1580 sig[13] = (helper->crypt.ntlm.seq_num >> 8) & 0xff;
1581 sig[14] = (helper->crypt.ntlm.seq_num >> 16) & 0xff;
1582 sig[15] = (helper->crypt.ntlm.seq_num >> 24) & 0xff;
1583
1584 ++(helper->crypt.ntlm.seq_num);
1585
1586 if(encrypt_sig)
1587 SECUR32_arc4Process(helper->crypt.ntlm.a4i, sig+4, 12);
1588 return SEC_E_OK;
1589 }
1590
1591 if(helper->neg_flags & NTLMSSP_NEGOTIATE_ALWAYS_SIGN || helper->neg_flags == 0)
1592 {
1593 TRACE("Creating a dummy signature.\n");
1594 /* A dummy signature is 0x01 followed by 15 bytes of 0x00 */
1595 memset(pMessage->pBuffers[token_idx].pvBuffer, 0, 16);
1596 memset(pMessage->pBuffers[token_idx].pvBuffer, 0x01, 1);
1597 pMessage->pBuffers[token_idx].cbBuffer = 16;
1598 return SEC_E_OK;
1599 }
1600
1601 return SEC_E_UNSUPPORTED_FUNCTION;
1602 }
1603
1604 /***********************************************************************
1605 * MakeSignature
1606 */
1607 static SECURITY_STATUS SEC_ENTRY ntlm_MakeSignature(PCtxtHandle phContext, ULONG fQOP,
1608 PSecBufferDesc pMessage, ULONG MessageSeqNo)
1609 {
1610 PNegoHelper helper;
1611 int token_idx;
1612
1613 TRACE("%p %d %p %d\n", phContext, fQOP, pMessage, MessageSeqNo);
1614 if (!phContext)
1615 return SEC_E_INVALID_HANDLE;
1616
1617 if(fQOP)
1618 FIXME("Ignoring fQOP 0x%08x\n", fQOP);
1619
1620 if(MessageSeqNo)
1621 FIXME("Ignoring MessageSeqNo\n");
1622
1623 if(!pMessage || !pMessage->pBuffers || pMessage->cBuffers < 2)
1624 return SEC_E_INVALID_TOKEN;
1625
1626 /* If we didn't find a SECBUFFER_TOKEN type buffer */
1627 if((token_idx = ntlm_GetTokenBufferIndex(pMessage)) == -1)
1628 return SEC_E_INVALID_TOKEN;
1629
1630 if(pMessage->pBuffers[token_idx].cbBuffer < 16)
1631 return SEC_E_BUFFER_TOO_SMALL;
1632
1633 helper = (PNegoHelper)phContext->dwLower;
1634 TRACE("Negotiated flags are: 0x%08lx\n", helper->neg_flags);
1635
1636 return ntlm_CreateSignature(helper, pMessage, token_idx, NTLM_SEND, TRUE);
1637 }
1638
1639 /***********************************************************************
1640 * VerifySignature
1641 */
1642 static SECURITY_STATUS SEC_ENTRY ntlm_VerifySignature(PCtxtHandle phContext,
1643 PSecBufferDesc pMessage, ULONG MessageSeqNo, PULONG pfQOP)
1644 {
1645 PNegoHelper helper;
1646 ULONG fQOP = 0;
1647 UINT i;
1648 int token_idx;
1649 SECURITY_STATUS ret;
1650 SecBufferDesc local_desc;
1651 PSecBuffer local_buff;
1652 BYTE local_sig[16];
1653
1654 TRACE("%p %p %d %p\n", phContext, pMessage, MessageSeqNo, pfQOP);
1655 if(!phContext)
1656 return SEC_E_INVALID_HANDLE;
1657
1658 if(!pMessage || !pMessage->pBuffers || pMessage->cBuffers < 2)
1659 return SEC_E_INVALID_TOKEN;
1660
1661 if((token_idx = ntlm_GetTokenBufferIndex(pMessage)) == -1)
1662 return SEC_E_INVALID_TOKEN;
1663
1664 if(pMessage->pBuffers[token_idx].cbBuffer < 16)
1665 return SEC_E_BUFFER_TOO_SMALL;
1666
1667 if(MessageSeqNo)
1668 FIXME("Ignoring MessageSeqNo\n");
1669
1670 helper = (PNegoHelper)phContext->dwLower;
1671 TRACE("Negotiated flags: 0x%08lx\n", helper->neg_flags);
1672
1673 local_buff = HeapAlloc(GetProcessHeap(), 0, pMessage->cBuffers * sizeof(SecBuffer));
1674
1675 local_desc.ulVersion = SECBUFFER_VERSION;
1676 local_desc.cBuffers = pMessage->cBuffers;
1677 local_desc.pBuffers = local_buff;
1678
1679 for(i=0; i < pMessage->cBuffers; ++i)
1680 {
1681 if(pMessage->pBuffers[i].BufferType == SECBUFFER_TOKEN)
1682 {
1683 local_buff[i].BufferType = SECBUFFER_TOKEN;
1684 local_buff[i].cbBuffer = 16;
1685 local_buff[i].pvBuffer = local_sig;
1686 }
1687 else
1688 {
1689 local_buff[i].BufferType = pMessage->pBuffers[i].BufferType;
1690 local_buff[i].cbBuffer = pMessage->pBuffers[i].cbBuffer;
1691 local_buff[i].pvBuffer = pMessage->pBuffers[i].pvBuffer;
1692 }
1693 }
1694
1695 if((ret = ntlm_CreateSignature(helper, &local_desc, token_idx, NTLM_RECV, TRUE)) != SEC_E_OK)
1696 return ret;
1697
1698 if(memcmp(((PBYTE)local_buff[token_idx].pvBuffer) + 8,
1699 ((PBYTE)pMessage->pBuffers[token_idx].pvBuffer) + 8, 8))
1700 ret = SEC_E_MESSAGE_ALTERED;
1701 else
1702 ret = SEC_E_OK;
1703
1704 HeapFree(GetProcessHeap(), 0, local_buff);
1705 pfQOP = &fQOP;
1706
1707 return ret;
1708
1709 }
1710
1711 /***********************************************************************
1712 * FreeCredentialsHandle
1713 */
1714 static SECURITY_STATUS SEC_ENTRY ntlm_FreeCredentialsHandle(
1715 PCredHandle phCredential)
1716 {
1717 SECURITY_STATUS ret;
1718
1719 if(phCredential){
1720 PNtlmCredentials ntlm_cred = (PNtlmCredentials) phCredential->dwLower;
1721 phCredential->dwUpper = 0;
1722 phCredential->dwLower = 0;
1723 if (ntlm_cred->password)
1724 memset(ntlm_cred->password, 0, ntlm_cred->pwlen);
1725 HeapFree(GetProcessHeap(), 0, ntlm_cred->password);
1726 HeapFree(GetProcessHeap(), 0, ntlm_cred->username_arg);
1727 HeapFree(GetProcessHeap(), 0, ntlm_cred->domain_arg);
1728 HeapFree(GetProcessHeap(), 0, ntlm_cred);
1729 ret = SEC_E_OK;
1730 }
1731 else
1732 ret = SEC_E_OK;
1733
1734 return ret;
1735 }
1736
1737 /***********************************************************************
1738 * EncryptMessage
1739 */
1740 static SECURITY_STATUS SEC_ENTRY ntlm_EncryptMessage(PCtxtHandle phContext,
1741 ULONG fQOP, PSecBufferDesc pMessage, ULONG MessageSeqNo)
1742 {
1743 PNegoHelper helper;
1744 int token_idx, data_idx;
1745
1746 TRACE("(%p %d %p %d)\n", phContext, fQOP, pMessage, MessageSeqNo);
1747
1748 if(!phContext)
1749 return SEC_E_INVALID_HANDLE;
1750
1751 if(fQOP)
1752 FIXME("Ignoring fQOP\n");
1753
1754 if(MessageSeqNo)
1755 FIXME("Ignoring MessageSeqNo\n");
1756
1757 if(!pMessage || !pMessage->pBuffers || pMessage->cBuffers < 2)
1758 return SEC_E_INVALID_TOKEN;
1759
1760 if((token_idx = ntlm_GetTokenBufferIndex(pMessage)) == -1)
1761 return SEC_E_INVALID_TOKEN;
1762
1763 if((data_idx = ntlm_GetDataBufferIndex(pMessage)) ==-1 )
1764 return SEC_E_INVALID_TOKEN;
1765
1766 if(pMessage->pBuffers[token_idx].cbBuffer < 16)
1767 return SEC_E_BUFFER_TOO_SMALL;
1768
1769 helper = (PNegoHelper) phContext->dwLower;
1770
1771 if(helper->neg_flags & NTLMSSP_NEGOTIATE_NTLM2 &&
1772 helper->neg_flags & NTLMSSP_NEGOTIATE_SEAL)
1773 {
1774 ntlm_CreateSignature(helper, pMessage, token_idx, NTLM_SEND, FALSE);
1775 SECUR32_arc4Process(helper->crypt.ntlm2.send_a4i,
1776 pMessage->pBuffers[data_idx].pvBuffer,
1777 pMessage->pBuffers[data_idx].cbBuffer);
1778
1779 if(helper->neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCHANGE)
1780 SECUR32_arc4Process(helper->crypt.ntlm2.send_a4i,
1781 ((BYTE *)pMessage->pBuffers[token_idx].pvBuffer)+4, 8);
1782
1783
1784 return SEC_E_OK;
1785 }
1786 else
1787 {
1788 PBYTE sig;
1789 ULONG save_flags;
1790
1791 /* EncryptMessage always produces real signatures, so make sure
1792 * NTLMSSP_NEGOTIATE_SIGN is set*/
1793 save_flags = helper->neg_flags;
1794 helper->neg_flags |= NTLMSSP_NEGOTIATE_SIGN;
1795 ntlm_CreateSignature(helper, pMessage, token_idx, NTLM_SEND, FALSE);
1796 helper->neg_flags = save_flags;
1797
1798 sig = pMessage->pBuffers[token_idx].pvBuffer;
1799
1800 SECUR32_arc4Process(helper->crypt.ntlm.a4i,
1801 pMessage->pBuffers[data_idx].pvBuffer,
1802 pMessage->pBuffers[data_idx].cbBuffer);
1803 SECUR32_arc4Process(helper->crypt.ntlm.a4i, sig+4, 12);
1804
1805 if(helper->neg_flags & NTLMSSP_NEGOTIATE_ALWAYS_SIGN || helper->neg_flags == 0)
1806 memset(sig+4, 0, 4);
1807
1808 }
1809
1810 return SEC_E_OK;
1811 }
1812
1813 /***********************************************************************
1814 * DecryptMessage
1815 */
1816 static SECURITY_STATUS SEC_ENTRY ntlm_DecryptMessage(PCtxtHandle phContext,
1817 PSecBufferDesc pMessage, ULONG MessageSeqNo, PULONG pfQOP)
1818 {
1819 SECURITY_STATUS ret;
1820 ULONG ntlmssp_flags_save;
1821 PNegoHelper helper;
1822 int token_idx, data_idx;
1823 TRACE("(%p %p %d %p)\n", phContext, pMessage, MessageSeqNo, pfQOP);
1824
1825 if(!phContext)
1826 return SEC_E_INVALID_HANDLE;
1827
1828 if(MessageSeqNo)
1829 FIXME("Ignoring MessageSeqNo\n");
1830
1831 if(!pMessage || !pMessage->pBuffers || pMessage->cBuffers < 2)
1832 return SEC_E_INVALID_TOKEN;
1833
1834 if((token_idx = ntlm_GetTokenBufferIndex(pMessage)) == -1)
1835 return SEC_E_INVALID_TOKEN;
1836
1837 if((data_idx = ntlm_GetDataBufferIndex(pMessage)) ==-1)
1838 return SEC_E_INVALID_TOKEN;
1839
1840 if(pMessage->pBuffers[token_idx].cbBuffer < 16)
1841 return SEC_E_BUFFER_TOO_SMALL;
1842
1843 helper = (PNegoHelper) phContext->dwLower;
1844
1845 if(helper->neg_flags & NTLMSSP_NEGOTIATE_NTLM2 && helper->neg_flags & NTLMSSP_NEGOTIATE_SEAL)
1846 {
1847 SECUR32_arc4Process(helper->crypt.ntlm2.recv_a4i,
1848 pMessage->pBuffers[data_idx].pvBuffer,
1849 pMessage->pBuffers[data_idx].cbBuffer);
1850 }
1851 else
1852 {
1853 SECUR32_arc4Process(helper->crypt.ntlm.a4i,
1854 pMessage->pBuffers[data_idx].pvBuffer,
1855 pMessage->pBuffers[data_idx].cbBuffer);
1856 }
1857
1858 /* Make sure we use a session key for the signature check, EncryptMessage
1859 * always does that, even in the dummy case */
1860 ntlmssp_flags_save = helper->neg_flags;
1861
1862 helper->neg_flags |= NTLMSSP_NEGOTIATE_SIGN;
1863 ret = ntlm_VerifySignature(phContext, pMessage, MessageSeqNo, pfQOP);
1864
1865 helper->neg_flags = ntlmssp_flags_save;
1866
1867 return ret;
1868 }
1869
1870 static const SecurityFunctionTableA ntlmTableA = {
1871 1,
1872 NULL, /* EnumerateSecurityPackagesA */
1873 ntlm_QueryCredentialsAttributesA, /* QueryCredentialsAttributesA */
1874 ntlm_AcquireCredentialsHandleA, /* AcquireCredentialsHandleA */
1875 ntlm_FreeCredentialsHandle, /* FreeCredentialsHandle */
1876 NULL, /* Reserved2 */
1877 ntlm_InitializeSecurityContextA, /* InitializeSecurityContextA */
1878 ntlm_AcceptSecurityContext, /* AcceptSecurityContext */
1879 ntlm_CompleteAuthToken, /* CompleteAuthToken */
1880 ntlm_DeleteSecurityContext, /* DeleteSecurityContext */
1881 NULL, /* ApplyControlToken */
1882 ntlm_QueryContextAttributesA, /* QueryContextAttributesA */
1883 ntlm_ImpersonateSecurityContext, /* ImpersonateSecurityContext */
1884 ntlm_RevertSecurityContext, /* RevertSecurityContext */
1885 ntlm_MakeSignature, /* MakeSignature */
1886 ntlm_VerifySignature, /* VerifySignature */
1887 FreeContextBuffer, /* FreeContextBuffer */
1888 NULL, /* QuerySecurityPackageInfoA */
1889 NULL, /* Reserved3 */
1890 NULL, /* Reserved4 */
1891 NULL, /* ExportSecurityContext */
1892 NULL, /* ImportSecurityContextA */
1893 NULL, /* AddCredentialsA */
1894 NULL, /* Reserved8 */
1895 NULL, /* QuerySecurityContextToken */
1896 ntlm_EncryptMessage, /* EncryptMessage */
1897 ntlm_DecryptMessage, /* DecryptMessage */
1898 NULL, /* SetContextAttributesA */
1899 };
1900
1901 static const SecurityFunctionTableW ntlmTableW = {
1902 1,
1903 NULL, /* EnumerateSecurityPackagesW */
1904 ntlm_QueryCredentialsAttributesW, /* QueryCredentialsAttributesW */
1905 ntlm_AcquireCredentialsHandleW, /* AcquireCredentialsHandleW */
1906 ntlm_FreeCredentialsHandle, /* FreeCredentialsHandle */
1907 NULL, /* Reserved2 */
1908 ntlm_InitializeSecurityContextW, /* InitializeSecurityContextW */
1909 ntlm_AcceptSecurityContext, /* AcceptSecurityContext */
1910 ntlm_CompleteAuthToken, /* CompleteAuthToken */
1911 ntlm_DeleteSecurityContext, /* DeleteSecurityContext */
1912 NULL, /* ApplyControlToken */
1913 ntlm_QueryContextAttributesW, /* QueryContextAttributesW */
1914 ntlm_ImpersonateSecurityContext, /* ImpersonateSecurityContext */
1915 ntlm_RevertSecurityContext, /* RevertSecurityContext */
1916 ntlm_MakeSignature, /* MakeSignature */
1917 ntlm_VerifySignature, /* VerifySignature */
1918 FreeContextBuffer, /* FreeContextBuffer */
1919 NULL, /* QuerySecurityPackageInfoW */
1920 NULL, /* Reserved3 */
1921 NULL, /* Reserved4 */
1922 NULL, /* ExportSecurityContext */
1923 NULL, /* ImportSecurityContextW */
1924 NULL, /* AddCredentialsW */
1925 NULL, /* Reserved8 */
1926 NULL, /* QuerySecurityContextToken */
1927 ntlm_EncryptMessage, /* EncryptMessage */
1928 ntlm_DecryptMessage, /* DecryptMessage */
1929 NULL, /* SetContextAttributesW */
1930 };
1931
1932 #define NTLM_COMMENT \
1933 { 'N', 'T', 'L', 'M', ' ', \
1934 'S', 'e', 'c', 'u', 'r', 'i', 't', 'y', ' ', \
1935 'P', 'a', 'c', 'k', 'a', 'g', 'e', 0}
1936
1937 static CHAR ntlm_comment_A[] = NTLM_COMMENT;
1938 static WCHAR ntlm_comment_W[] = NTLM_COMMENT;
1939
1940 #define NTLM_NAME {'N', 'T', 'L', 'M', 0}
1941
1942 static char ntlm_name_A[] = NTLM_NAME;
1943 static WCHAR ntlm_name_W[] = NTLM_NAME;
1944
1945 /* According to Windows, NTLM has the following capabilities. */
1946 #define CAPS ( \
1947 SECPKG_FLAG_INTEGRITY | \
1948 SECPKG_FLAG_PRIVACY | \
1949 SECPKG_FLAG_TOKEN_ONLY | \
1950 SECPKG_FLAG_CONNECTION | \
1951 SECPKG_FLAG_MULTI_REQUIRED | \
1952 SECPKG_FLAG_IMPERSONATION | \
1953 SECPKG_FLAG_ACCEPT_WIN32_NAME | \
1954 SECPKG_FLAG_READONLY_WITH_CHECKSUM)
1955
1956 static const SecPkgInfoW infoW = {
1957 CAPS,
1958 1,
1959 RPC_C_AUTHN_WINNT,
1960 NTLM_MAX_BUF,
1961 ntlm_name_W,
1962 ntlm_comment_W
1963 };
1964
1965 static const SecPkgInfoA infoA = {
1966 CAPS,
1967 1,
1968 RPC_C_AUTHN_WINNT,
1969 NTLM_MAX_BUF,
1970 ntlm_name_A,
1971 ntlm_comment_A
1972 };
1973
1974 #define NEGO_COMMENT { 'M', 'i', 'c', 'r', 'o', 's', 'o', 'f', 't', ' ', \
1975 'P', 'a', 'c', 'k', 'a', 'g', 'e', ' ', \
1976 'N', 'e', 'g', 'o', 't', 'i', 'a', 't', 'o', 'r', 0};
1977
1978 static CHAR nego_comment_A[] = NEGO_COMMENT;
1979 static WCHAR nego_comment_W[] = NEGO_COMMENT;
1980
1981 #define NEGO_NAME {'N', 'e', 'g', 'o', 't', 'i', 'a', 't', 'e', 0}
1982
1983 static CHAR nego_name_A[] = NEGO_NAME;
1984 static WCHAR nego_name_W[] = NEGO_NAME;
1985
1986 #define NEGO_CAPS (\
1987 SECPKG_FLAG_INTEGRITY | \
1988 SECPKG_FLAG_PRIVACY | \
1989 SECPKG_FLAG_CONNECTION | \
1990 SECPKG_FLAG_MULTI_REQUIRED | \
1991 SECPKG_FLAG_EXTENDED_ERROR | \
1992 SECPKG_FLAG_IMPERSONATION | \
1993 SECPKG_FLAG_ACCEPT_WIN32_NAME | \
1994 SECPKG_FLAG_READONLY_WITH_CHECKSUM )
1995
1996 /* Not used for now, just kept here for completeness sake. We need to use the
1997 * NTLM_MAX_BUF value. If the hack works, we might want to refactor the code a
1998 * bit. */
1999 #define NEGO_MAX_TOKEN 12000
2000
2001 static const SecPkgInfoW nego_infoW = {
2002 NEGO_CAPS,
2003 1,
2004 RPC_C_AUTHN_GSS_NEGOTIATE,
2005 NTLM_MAX_BUF,
2006 nego_name_W,
2007 nego_comment_W
2008 };
2009
2010 static const SecPkgInfoA nego_infoA = {
2011 NEGO_CAPS,
2012 1,
2013 RPC_C_AUTHN_GSS_NEGOTIATE,
2014 NTLM_MAX_BUF,
2015 nego_name_A,
2016 nego_comment_A
2017 };
2018
2019 void SECUR32_initNTLMSP(void)
2020 {
2021 PNegoHelper helper;
2022 static CHAR version[] = "--version";
2023
2024 SEC_CHAR *args[] = {
2025 ntlm_auth,
2026 version,
2027 NULL };
2028
2029 if(fork_helper(&helper, ntlm_auth, args) != SEC_E_OK)
2030 {
2031 /* Cheat and allocate a helper anyway, so cleanup later will work. */
2032 helper = HeapAlloc(GetProcessHeap(),0, sizeof(NegoHelper));
2033 helper->major = helper->minor = helper->micro = -1;
2034 helper->pipe_in = helper->pipe_out = -1;
2035 }
2036 else
2037 check_version(helper);
2038
2039 if( (helper->major > MIN_NTLM_AUTH_MAJOR_VERSION) ||
2040 (helper->major == MIN_NTLM_AUTH_MAJOR_VERSION &&
2041 helper->minor > MIN_NTLM_AUTH_MINOR_VERSION) ||
2042 (helper->major == MIN_NTLM_AUTH_MAJOR_VERSION &&
2043 helper->minor == MIN_NTLM_AUTH_MINOR_VERSION &&
2044 helper->micro >= MIN_NTLM_AUTH_MICRO_VERSION) )
2045 {
2046 SecureProvider *provider = SECUR32_addProvider(&ntlmTableA, &ntlmTableW, NULL);
2047 SecureProvider *nego_provider = SECUR32_addProvider(&ntlmTableA, &ntlmTableW, NULL);
2048
2049 SECUR32_addPackages(provider, 1L, &infoA, &infoW);
2050 /* HACK: Also pretend this is the Negotiate provider */
2051 SECUR32_addPackages(nego_provider, 1L, &nego_infoA, &nego_infoW);
2052 }
2053 else
2054 {
2055 ERR("%s was not found or is outdated. "
2056 "Make sure that ntlm_auth >= %d.%d.%d is in your path.\n",
2057 ntlm_auth,
2058 MIN_NTLM_AUTH_MAJOR_VERSION,
2059 MIN_NTLM_AUTH_MINOR_VERSION,
2060 MIN_NTLM_AUTH_MICRO_VERSION);
2061 ERR("Usually, you can find it in the winbind package of your "
2062 "distribution.\n");
2063
2064 }
2065 cleanup_helper(helper);
2066 }
useful hacks and other patches not (yet) suitable for mainline