?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
user: ChangeDisplaySettings virtual desktop mode handling fix.
[wine/dibdrv.git] / dlls / secur32 / ntlm.c
blob930c41b435bf00404836d858c9383fed034579e5
1 /*
2 * Copyright 2005, 2006 Kai Blin
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
17 *
18 * This file implements the NTLM security provider.
19 */
20
21 #include <assert.h>
22 #include <stdarg.h>
23 #include <stdio.h>
24 #include "windef.h"
25 #include "winbase.h"
26 #include "winnls.h"
27 #include "rpc.h"
28 #include "sspi.h"
29 #include "lm.h"
30 #include "secur32_priv.h"
31 #include "wine/debug.h"
32
33 WINE_DEFAULT_DEBUG_CHANNEL(secur32);
34
35 #define NTLM_MAX_BUF 1904
36
37
38 /***********************************************************************
39 * QueryCredentialsAttributesA
40 */
41 static SECURITY_STATUS SEC_ENTRY ntlm_QueryCredentialsAttributesA(
42 PCredHandle phCredential, ULONG ulAttribute, PVOID pBuffer)
43 {
44 SECURITY_STATUS ret;
45
46 TRACE("(%p, %ld, %p)\n", phCredential, ulAttribute, pBuffer);
47
48 if(ulAttribute == SECPKG_ATTR_NAMES)
49 {
50 FIXME("SECPKG_CRED_ATTR_NAMES: stub\n");
51 ret = SEC_E_UNSUPPORTED_FUNCTION;
52 }
53 else
54 ret = SEC_E_UNSUPPORTED_FUNCTION;
55
56 return ret;
57 }
58
59 /***********************************************************************
60 * QueryCredentialsAttributesW
61 */
62 static SECURITY_STATUS SEC_ENTRY ntlm_QueryCredentialsAttributesW(
63 PCredHandle phCredential, ULONG ulAttribute, PVOID pBuffer)
64 {
65 SECURITY_STATUS ret;
66
67 TRACE("(%p, %ld, %p)\n", phCredential, ulAttribute, pBuffer);
68
69 if(ulAttribute == SECPKG_ATTR_NAMES)
70 {
71 FIXME("SECPKG_CRED_ATTR_NAMES: stub\n");
72 ret = SEC_E_UNSUPPORTED_FUNCTION;
73 }
74 else
75 ret = SEC_E_UNSUPPORTED_FUNCTION;
76
77 return ret;
78 }
79
80 /***********************************************************************
81 * AcquireCredentialsHandleW
82 */
83 static SECURITY_STATUS SEC_ENTRY ntlm_AcquireCredentialsHandleW(
84 SEC_WCHAR *pszPrincipal, SEC_WCHAR *pszPackage, ULONG fCredentialUse,
85 PLUID pLogonID, PVOID pAuthData, SEC_GET_KEY_FN pGetKeyFn,
86 PVOID pGetKeyArgument, PCredHandle phCredential, PTimeStamp ptsExpiry)
87 {
88 SECURITY_STATUS ret;
89 PNegoHelper helper = NULL;
90 static CHAR ntlm_auth[] = "ntlm_auth",
91 helper_protocol[] = "--helper-protocol=squid-2.5-ntlmssp";
92
93 SEC_CHAR *client_user_arg = NULL;
94 SEC_CHAR *client_domain_arg = NULL;
95 SEC_WCHAR *username = NULL, *domain = NULL;
96
97 SEC_CHAR *client_argv[5];
98 SEC_CHAR *server_argv[] = { ntlm_auth,
99 helper_protocol,
100 NULL };
101
102 TRACE("(%s, %s, 0x%08lx, %p, %p, %p, %p, %p, %p)\n",
103 debugstr_w(pszPrincipal), debugstr_w(pszPackage), fCredentialUse,
104 pLogonID, pAuthData, pGetKeyFn, pGetKeyArgument, phCredential, ptsExpiry);
105
106
107 switch(fCredentialUse)
108 {
109 case SECPKG_CRED_INBOUND:
110 if( (ret = fork_helper(&helper, "ntlm_auth", server_argv)) !=
111 SEC_E_OK)
112 {
113 phCredential = NULL;
114 break;
115 }
116 else
117 {
118 helper->mode = NTLM_SERVER;
119 phCredential->dwUpper = fCredentialUse;
120 phCredential->dwLower = (ULONG_PTR)helper;
121 }
122 ret = SEC_E_OK;
123 break;
124 case SECPKG_CRED_OUTBOUND:
125 {
126 static const char username_arg[] = "--username=";
127 static const char domain_arg[] = "--domain=";
128 static char ntlm_auth[] = "ntlm_auth";
129 static char helper_protocol[] = "--helper-protocol=ntlmssp-client-1";
130 int unixcp_size;
131
132 if(pAuthData == NULL)
133 {
134 LPWKSTA_USER_INFO_1 ui = NULL;
135 NET_API_STATUS status;
136
137 status = NetWkstaUserGetInfo(NULL, 1, (LPBYTE *)&ui);
138 if (status != NERR_Success || ui == NULL)
139 {
140 ret = SEC_E_NO_CREDENTIALS;
141 phCredential = NULL;
142 break;
143 }
144
145 username = HeapAlloc(GetProcessHeap(), 0,
146 (lstrlenW(ui->wkui1_username)+1) *
147 sizeof(SEC_WCHAR));
148 lstrcpyW(username, ui->wkui1_username);
149
150 /* same for the domain */
151 domain = HeapAlloc(GetProcessHeap(), 0,
152 (lstrlenW(ui->wkui1_logon_domain)+1) *
153 sizeof(SEC_WCHAR));
154 lstrcpyW(domain, ui->wkui1_logon_domain);
155 NetApiBufferFree(ui);
156 }
157 else
158 {
159 PSEC_WINNT_AUTH_IDENTITY_W auth_data =
160 (PSEC_WINNT_AUTH_IDENTITY_W)pAuthData;
161
162 if (!auth_data->UserLength || !auth_data->DomainLength)
163 {
164 ret = SEC_E_NO_CREDENTIALS;
165 phCredential = NULL;
166 break;
167 }
168 /* Get username and domain from pAuthData */
169 username = HeapAlloc(GetProcessHeap(), 0,
170 (auth_data->UserLength + 1) * sizeof(SEC_WCHAR));
171 lstrcpyW(username, auth_data->User);
172
173 domain = HeapAlloc(GetProcessHeap(), 0,
174 (auth_data->DomainLength + 1) * sizeof(SEC_WCHAR));
175 lstrcpyW(domain, auth_data->Domain);
176 }
177 TRACE("Username is %s\n", debugstr_w(username));
178 unixcp_size = WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS,
179 username, -1, NULL, 0, NULL, NULL) + sizeof(username_arg);
180 client_user_arg = HeapAlloc(GetProcessHeap(), 0, unixcp_size);
181 lstrcpyA(client_user_arg, username_arg);
182 WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS, username, -1,
183 client_user_arg + sizeof(username_arg) - 1,
184 unixcp_size - sizeof(username_arg) + 1, NULL, NULL);
185
186 TRACE("Domain name is %s\n", debugstr_w(domain));
187 unixcp_size = WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS,
188 domain, -1, NULL, 0, NULL, NULL) + sizeof(domain_arg);
189 client_domain_arg = HeapAlloc(GetProcessHeap(), 0, unixcp_size);
190 lstrcpyA(client_domain_arg, domain_arg);
191 WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS, domain,
192 -1, client_domain_arg + sizeof(domain_arg) - 1,
193 unixcp_size - sizeof(domain) + 1, NULL, NULL);
194
195 client_argv[0] = ntlm_auth;
196 client_argv[1] = helper_protocol;
197 client_argv[2] = client_user_arg;
198 client_argv[3] = client_domain_arg;
199 client_argv[4] = NULL;
200
201 if((ret = fork_helper(&helper, "ntlm_auth", client_argv)) !=
202 SEC_E_OK)
203 {
204 phCredential = NULL;
205 break;
206 }
207 else
208 {
209 helper->mode = NTLM_CLIENT;
210
211 if(pAuthData != NULL)
212 {
213 PSEC_WINNT_AUTH_IDENTITY_W auth_data =
214 (PSEC_WINNT_AUTH_IDENTITY_W)pAuthData;
215
216 if(auth_data->PasswordLength != 0)
217 {
218 helper->pwlen = WideCharToMultiByte(CP_UNIXCP,
219 WC_NO_BEST_FIT_CHARS, auth_data->Password,
220 auth_data->PasswordLength+1, NULL, 0, NULL, NULL);
221
222 helper->password = HeapAlloc(GetProcessHeap(), 0,
223 helper->pwlen);
224
225 WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS,
226 auth_data->Password, auth_data->PasswordLength+1,
227 helper->password, helper->pwlen, NULL, NULL);
228 }
229 }
230
231 phCredential->dwUpper = fCredentialUse;
232 phCredential->dwLower = (ULONG_PTR)helper;
233 TRACE("ACH phCredential->dwUpper: 0x%08lx, dwLower: 0x%08lx\n",
234 phCredential->dwUpper, phCredential->dwLower);
235 }
236 ret = SEC_E_OK;
237 break;
238 }
239 case SECPKG_CRED_BOTH:
240 FIXME("AcquireCredentialsHandle: SECPKG_CRED_BOTH stub\n");
241 ret = SEC_E_UNSUPPORTED_FUNCTION;
242 phCredential = NULL;
243 break;
244 default:
245 phCredential = NULL;
246 ret = SEC_E_UNKNOWN_CREDENTIALS;
247 }
248
249
250 HeapFree(GetProcessHeap(), 0, client_user_arg);
251 HeapFree(GetProcessHeap(), 0, client_domain_arg);
252 HeapFree(GetProcessHeap(), 0, username);
253 HeapFree(GetProcessHeap(), 0, domain);
254
255 return ret;
256 }
257
258 /***********************************************************************
259 * AcquireCredentialsHandleA
260 */
261 static SECURITY_STATUS SEC_ENTRY ntlm_AcquireCredentialsHandleA(
262 SEC_CHAR *pszPrincipal, SEC_CHAR *pszPackage, ULONG fCredentialUse,
263 PLUID pLogonID, PVOID pAuthData, SEC_GET_KEY_FN pGetKeyFn,
264 PVOID pGetKeyArgument, PCredHandle phCredential, PTimeStamp ptsExpiry)
265 {
266 SECURITY_STATUS ret;
267 int user_sizeW, domain_sizeW, passwd_sizeW;
268
269 SEC_WCHAR *user = NULL, *domain = NULL, *passwd = NULL, *package = NULL;
270
271 PSEC_WINNT_AUTH_IDENTITY_W pAuthDataW = NULL;
272 PSEC_WINNT_AUTH_IDENTITY_A identity = NULL;
273
274 TRACE("(%s, %s, 0x%08lx, %p, %p, %p, %p, %p, %p)\n",
275 debugstr_a(pszPrincipal), debugstr_a(pszPackage), fCredentialUse,
276 pLogonID, pAuthData, pGetKeyFn, pGetKeyArgument, phCredential, ptsExpiry);
277
278 if(pszPackage != NULL)
279 {
280 int package_sizeW = MultiByteToWideChar(CP_ACP, 0, pszPackage, -1,
281 NULL, 0);
282
283 package = HeapAlloc(GetProcessHeap(), 0, package_sizeW *
284 sizeof(SEC_WCHAR));
285 MultiByteToWideChar(CP_ACP, 0, pszPackage, -1, package, package_sizeW);
286 }
287
288
289 if(pAuthData != NULL)
290 {
291 identity = (PSEC_WINNT_AUTH_IDENTITY_A)pAuthData;
292
293 if(identity->Flags == SEC_WINNT_AUTH_IDENTITY_ANSI)
294 {
295 pAuthDataW = HeapAlloc(GetProcessHeap(), 0,
296 sizeof(SEC_WINNT_AUTH_IDENTITY_W));
297
298 if(identity->UserLength != 0)
299 {
300 user_sizeW = MultiByteToWideChar(CP_ACP, 0,
301 (LPCSTR)identity->User, identity->UserLength+1, NULL, 0);
302 user = HeapAlloc(GetProcessHeap(), 0, user_sizeW *
303 sizeof(SEC_WCHAR));
304 MultiByteToWideChar(CP_ACP, 0, (LPCSTR)identity->User,
305 identity->UserLength+1, user, user_sizeW);
306 }
307 else
308 {
309 user_sizeW = 0;
310 }
311
312 if(identity->DomainLength != 0)
313 {
314 domain_sizeW = MultiByteToWideChar(CP_ACP, 0,
315 (LPCSTR)identity->Domain, identity->DomainLength+1, NULL, 0);
316 domain = HeapAlloc(GetProcessHeap(), 0, domain_sizeW
317 * sizeof(SEC_WCHAR));
318 MultiByteToWideChar(CP_ACP, 0, (LPCSTR)identity->Domain,
319 identity->DomainLength+1, domain, domain_sizeW);
320 }
321 else
322 {
323 domain_sizeW = 0;
324 }
325
326 if(identity->PasswordLength != 0)
327 {
328 passwd_sizeW = MultiByteToWideChar(CP_ACP, 0,
329 (LPCSTR)identity->Password, identity->PasswordLength+1,
330 NULL, 0);
331 passwd = HeapAlloc(GetProcessHeap(), 0, passwd_sizeW
332 * sizeof(SEC_WCHAR));
333 MultiByteToWideChar(CP_ACP, 0, (LPCSTR)identity->Password,
334 identity->PasswordLength+1, passwd, passwd_sizeW);
335 }
336 else
337 {
338 passwd_sizeW = 0;
339 }
340
341 pAuthDataW->Flags = SEC_WINNT_AUTH_IDENTITY_UNICODE;
342 pAuthDataW->User = user;
343 pAuthDataW->UserLength = user_sizeW;
344 pAuthDataW->Domain = domain;
345 pAuthDataW->DomainLength = domain_sizeW;
346 pAuthDataW->Password = passwd;
347 pAuthDataW->PasswordLength = passwd_sizeW;
348 }
349 else
350 {
351 pAuthDataW = (PSEC_WINNT_AUTH_IDENTITY_W)identity;
352 }
353 }
354
355 ret = ntlm_AcquireCredentialsHandleW(NULL, package, fCredentialUse,
356 pLogonID, pAuthDataW, pGetKeyFn, pGetKeyArgument, phCredential,
357 ptsExpiry);
358
359 HeapFree(GetProcessHeap(), 0, package);
360 HeapFree(GetProcessHeap(), 0, user);
361 HeapFree(GetProcessHeap(), 0, domain);
362 HeapFree(GetProcessHeap(), 0, passwd);
363 if(pAuthDataW != (PSEC_WINNT_AUTH_IDENTITY_W)identity)
364 HeapFree(GetProcessHeap(), 0, pAuthDataW);
365
366 return ret;
367 }
368
369 /***********************************************************************
370 * InitializeSecurityContextW
371 */
372 static SECURITY_STATUS SEC_ENTRY ntlm_InitializeSecurityContextW(
373 PCredHandle phCredential, PCtxtHandle phContext, SEC_WCHAR *pszTargetName,
374 ULONG fContextReq, ULONG Reserved1, ULONG TargetDataRep,
375 PSecBufferDesc pInput, ULONG Reserved2, PCtxtHandle phNewContext,
376 PSecBufferDesc pOutput, ULONG *pfContextAttr, PTimeStamp ptsExpiry)
377 {
378 SECURITY_STATUS ret;
379 PNegoHelper helper;
380 ULONG ctxt_attr = 0;
381 char* buffer, *want_flags = NULL;
382 PBYTE bin;
383 int buffer_len, bin_len, max_len = NTLM_MAX_BUF;
384
385 TRACE("%p %p %s %ld %ld %ld %p %ld %p %p %p %p\n", phCredential, phContext,
386 debugstr_w(pszTargetName), fContextReq, Reserved1, TargetDataRep, pInput,
387 Reserved1, phNewContext, pOutput, pfContextAttr, ptsExpiry);
388
389 if(!phCredential)
390 return SEC_E_INVALID_HANDLE;
391
392 /* As the server side of sspi never calls this, make sure that
393 * the handler is a client handler.
394 */
395 helper = (PNegoHelper)phCredential->dwLower;
396 if(helper->mode != NTLM_CLIENT)
397 {
398 TRACE("Helper mode = %d\n", helper->mode);
399 return SEC_E_INVALID_HANDLE;
400 }
401
402 /****************************************
403 * When communicating with the client, there can be the
404 * following reply packets:
405 * YR <base64 blob> should be sent to the server
406 * PW should be sent back to helper with
407 * base64 encoded password
408 * AF <base64 blob> client is done, blob should be
409 * sent to server with KK prefixed
410 * GF <string list> A string list of negotiated flags
411 * GK <base64 blob> base64 encoded session key
412 * BH <char reason> something broke
413 */
414 /* The squid cache size is 2010 chars, and that's what ntlm_auth uses */
415
416 if (pszTargetName)
417 {
418 TRACE("According to a MS whitepaper pszTargetName is ignored.\n");
419 }
420
421 if(TargetDataRep == SECURITY_NETWORK_DREP){
422 TRACE("Setting SECURITY_NETWORK_DREP\n");
423 }
424
425 buffer = HeapAlloc(GetProcessHeap(), 0, sizeof(char) * NTLM_MAX_BUF);
426 bin = HeapAlloc(GetProcessHeap(), 0, sizeof(BYTE) * NTLM_MAX_BUF);
427
428 if((phContext == NULL) && (pInput == NULL))
429 {
430 TRACE("First time in ISC()\n");
431 /* Allocate space for a maximal string of
432 * "SF NTLMSSP_FEATURE_SIGN NTLMSSP_FEATURE_SEAL
433 * NTLMSSP_FEATURE_SESSION_KEY"
434 */
435 want_flags = HeapAlloc(GetProcessHeap(), 0, 73);
436 if(want_flags == NULL)
437 {
438 ret = SEC_E_INSUFFICIENT_MEMORY;
439 goto isc_end;
440 }
441 lstrcpyA(want_flags, "SF");
442 if(fContextReq & ISC_REQ_CONFIDENTIALITY)
443 lstrcatA(want_flags, " NTLMSSP_FEATURE_SEAL");
444 if(fContextReq & ISC_REQ_CONNECTION)
445 {
446 /* This is default, so we'll enable it */
447 ctxt_attr |= ISC_RET_CONNECTION;
448 lstrcatA(want_flags, " NTLMSSP_FEATURE_SESSION_KEY");
449 }
450 if(fContextReq & ISC_REQ_EXTENDED_ERROR)
451 FIXME("ISC_REQ_EXTENDED_ERROR\n");
452 if(fContextReq & ISC_REQ_INTEGRITY)
453 lstrcatA(want_flags, " NTLMSSP_FEATURE_SIGN");
454 if(fContextReq & ISC_REQ_MUTUAL_AUTH)
455 FIXME("ISC_REQ_MUTUAL_AUTH\n");
456 if(fContextReq & ISC_REQ_REPLAY_DETECT)
457 FIXME("ISC_REQ_REPLAY_DETECT\n");
458 if(fContextReq & ISC_REQ_SEQUENCE_DETECT)
459 FIXME("ISC_REQ_SEQUENCE_DETECT\n");
460 if(fContextReq & ISC_REQ_STREAM)
461 FIXME("ISC_REQ_STREAM\n");
462
463 /* Request a challenge request from ntlm_auth */
464 if(helper->password == NULL)
465 {
466 FIXME("Using empty password for now.\n");
467 lstrcpynA(buffer, "PW AA==", max_len-1);
468 }
469 else
470 {
471 lstrcpynA(buffer, "PW ", max_len-1);
472 if((ret = encodeBase64((unsigned char*)helper->password,
473 helper->pwlen-2, buffer+3,
474 max_len-3, &buffer_len)) != SEC_E_OK)
475 {
476 TRACE("Deleting password!\n");
477 memset(helper->password, 0, helper->pwlen-2);
478 HeapFree(GetProcessHeap(), 0, helper->password);
479 goto isc_end;
480 }
481
482 }
483
484 TRACE("Sending to helper: %s\n", debugstr_a(buffer));
485 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
486 goto isc_end;
487
488 TRACE("Helper returned %s\n", debugstr_a(buffer));
489
490 if(lstrlenA(want_flags) > 2)
491 {
492 TRACE("Want flags are '%s'\n", debugstr_a(want_flags));
493 lstrcpynA(buffer, want_flags, max_len-1);
494 if((ret = run_helper(helper, buffer, max_len, &buffer_len))
495 != SEC_E_OK)
496 goto isc_end;
497 if(!strncmp(buffer, "BH", 2))
498 TRACE("Helper doesn't understand new command set\n");
499 }
500
501 lstrcpynA(buffer, "YR", max_len-1);
502
503 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
504 goto isc_end;
505
506 TRACE("%s\n", buffer);
507
508 if(strncmp(buffer, "YR ", 3) != 0)
509 {
510 /* Something borked */
511 TRACE("Helper returned %c%c\n", buffer[0], buffer[1]);
512 ret = SEC_E_INTERNAL_ERROR;
513 goto isc_end;
514 }
515 if((ret = decodeBase64(buffer+3, buffer_len-3, bin,
516 max_len-1, &bin_len)) != SEC_E_OK)
517 goto isc_end;
518
519 /* Mask away the NTLMv2 flag, as well as the key exchange flag */
520 bin[14] &= ~0x08;
521 bin[15] &= ~0x40;
522
523 /* put the decoded client blob into the out buffer */
524
525 ret = SEC_I_CONTINUE_NEEDED;
526 }
527 else
528 {
529 /* handle second call here */
530 /* encode server data to base64 */
531 if (!pInput || !pInput->cBuffers)
532 {
533 ret = SEC_E_INCOMPLETE_MESSAGE;
534 goto isc_end;
535 }
536
537 if (!pInput->pBuffers[0].pvBuffer)
538 {
539 ret = SEC_E_INTERNAL_ERROR;
540 goto isc_end;
541 }
542
543 if(pInput->pBuffers[0].cbBuffer > max_len)
544 {
545 TRACE("pInput->pBuffers[0].cbBuffer is: %ld\n",
546 pInput->pBuffers[0].cbBuffer);
547 ret = SEC_E_INVALID_TOKEN;
548 goto isc_end;
549 }
550 else
551 bin_len = pInput->pBuffers[0].cbBuffer;
552
553 memcpy(bin, pInput->pBuffers[0].pvBuffer, bin_len);
554
555 lstrcpynA(buffer, "TT ", max_len-1);
556
557 if((ret = encodeBase64(bin, bin_len, buffer+3,
558 max_len-3, &buffer_len)) != SEC_E_OK)
559 goto isc_end;
560
561 TRACE("Server sent: %s\n", debugstr_a(buffer));
562
563 /* send TT base64 blob to ntlm_auth */
564 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
565 goto isc_end;
566
567 TRACE("Helper replied: %s\n", debugstr_a(buffer));
568
569 if( (strncmp(buffer, "KK ", 3) != 0) &&
570 (strncmp(buffer, "AF ", 3) !=0))
571 {
572 TRACE("Helper returned %c%c\n", buffer[0], buffer[1]);
573 ret = SEC_E_INVALID_TOKEN;
574 goto isc_end;
575 }
576
577 /* decode the blob and send it to server */
578 if((ret = decodeBase64(buffer+3, buffer_len-3, bin, max_len,
579 &bin_len)) != SEC_E_OK)
580 {
581 goto isc_end;
582 }
583
584 phNewContext->dwUpper = ctxt_attr;
585 phNewContext->dwLower = (ULONG_PTR)helper;
586
587 ret = SEC_E_OK;
588 }
589
590 /* put the decoded client blob into the out buffer */
591
592 if (fContextReq & ISC_REQ_ALLOCATE_MEMORY)
593 {
594 if (pOutput)
595 {
596 pOutput->cBuffers = 1;
597 pOutput->pBuffers[0].pvBuffer = SECUR32_ALLOC(bin_len);
598 pOutput->pBuffers[0].cbBuffer = bin_len;
599 }
600 }
601
602 if (!pOutput || !pOutput->cBuffers || pOutput->pBuffers[0].cbBuffer < bin_len)
603 {
604 TRACE("out buffer is NULL or has not enough space\n");
605 ret = SEC_E_BUFFER_TOO_SMALL;
606 goto isc_end;
607 }
608
609 if (!pOutput->pBuffers[0].pvBuffer)
610 {
611 TRACE("out buffer is NULL\n");
612 ret = SEC_E_INTERNAL_ERROR;
613 goto isc_end;
614 }
615
616 pOutput->pBuffers[0].cbBuffer = bin_len;
617 pOutput->pBuffers[0].BufferType = SECBUFFER_DATA;
618 memcpy(pOutput->pBuffers[0].pvBuffer, bin, bin_len);
619
620 if(ret == SEC_E_OK)
621 {
622 TRACE("Getting negotiated flags\n");
623 lstrcpynA(buffer, "GF", max_len - 1);
624 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
625 goto isc_end;
626
627 if(buffer_len < 3)
628 {
629 TRACE("No flags negotiated, or helper does not support GF command\n");
630 helper->neg_flags = 0l;
631 }
632 else
633 {
634 TRACE("Negotiated %s\n", debugstr_a(buffer));
635 sscanf(buffer + 3, "%lx", &(helper->neg_flags));
636 TRACE("Stored 0x%08lx as flags\n", helper->neg_flags);
637 }
638
639 TRACE("Getting session key\n");
640 lstrcpynA(buffer, "GK", max_len - 1);
641 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
642 goto isc_end;
643
644 if(strncmp(buffer, "BH", 2) == 0)
645 {
646 TRACE("Helper does not understand command or no key negotiated.\n");
647 helper->valid_session_key = FALSE;
648 helper->session_key = HeapAlloc(GetProcessHeap(), 0, 16);
649 /*Generate the dummy session key = MD4(MD4(password))*/
650 if(helper->password)
651 {
652 SEC_WCHAR *unicode_password;
653 int passwd_lenW;
654
655 TRACE("Converting password to unicode.\n");
656 passwd_lenW = MultiByteToWideChar(CP_ACP, 0,
657 (LPCSTR)helper->password, helper->pwlen,
658 NULL, 0);
659 unicode_password = HeapAlloc(GetProcessHeap(), 0,
660 passwd_lenW * sizeof(SEC_WCHAR));
661 MultiByteToWideChar(CP_ACP, 0, (LPCSTR)helper->password,
662 helper->pwlen, unicode_password, passwd_lenW);
663
664 SECUR32_CreateNTLMv1SessionKey((PBYTE)unicode_password,
665 lstrlenW(unicode_password) * sizeof(SEC_WCHAR), helper->session_key);
666
667 HeapFree(GetProcessHeap(), 0, unicode_password);
668 }
669 else
670 memset(helper->session_key, 0, 16);
671 }
672 else if(strncmp(buffer, "GK ", 3) == 0)
673 {
674 if((ret = decodeBase64(buffer+3, buffer_len-3, bin, max_len,
675 &bin_len)) != SEC_E_OK)
676 {
677 TRACE("Failed to decode session key\n");
678 }
679 TRACE("Session key is %s\n", debugstr_a(buffer+3));
680 helper->valid_session_key = TRUE;
681 if(!helper->session_key)
682 helper->session_key = HeapAlloc(GetProcessHeap(), 0, bin_len);
683 if(!helper->session_key)
684 {
685 TRACE("Failed to allocate memory for session key\n");
686 ret = SEC_E_INTERNAL_ERROR;
687 goto isc_end;
688 }
689 memcpy(helper->session_key, bin, bin_len);
690 }
691
692 helper->crypt.ntlm.a4i = SECUR32_arc4Alloc();
693 SECUR32_arc4Init(helper->crypt.ntlm.a4i, helper->session_key, 16);
694 helper->crypt.ntlm.seq_num = 0l;
695 }
696
697 if(ret != SEC_I_CONTINUE_NEEDED)
698 {
699 TRACE("Deleting password!\n");
700 if(helper->password)
701 memset(helper->password, 0, helper->pwlen-2);
702 HeapFree(GetProcessHeap(), 0, helper->password);
703 }
704 isc_end:
705 HeapFree(GetProcessHeap(), 0, want_flags);
706 HeapFree(GetProcessHeap(), 0, buffer);
707 HeapFree(GetProcessHeap(), 0, bin);
708 return ret;
709 }
710
711 /***********************************************************************
712 * InitializeSecurityContextA
713 */
714 static SECURITY_STATUS SEC_ENTRY ntlm_InitializeSecurityContextA(
715 PCredHandle phCredential, PCtxtHandle phContext, SEC_CHAR *pszTargetName,
716 ULONG fContextReq, ULONG Reserved1, ULONG TargetDataRep,
717 PSecBufferDesc pInput,ULONG Reserved2, PCtxtHandle phNewContext,
718 PSecBufferDesc pOutput, ULONG *pfContextAttr, PTimeStamp ptsExpiry)
719 {
720 SECURITY_STATUS ret;
721
722 TRACE("%p %p %s %ld %ld %ld %p %ld %p %p %p %p\n", phCredential, phContext,
723 debugstr_a(pszTargetName), fContextReq, Reserved1, TargetDataRep, pInput,
724 Reserved1, phNewContext, pOutput, pfContextAttr, ptsExpiry);
725
726 if (phCredential)
727 {
728 SEC_WCHAR *target = NULL;
729 if(pszTargetName != NULL)
730 {
731 int target_size = MultiByteToWideChar(CP_ACP, 0, pszTargetName,
732 strlen(pszTargetName)+1, NULL, 0);
733 target = HeapAlloc(GetProcessHeap(), 0, target_size *
734 sizeof(SEC_WCHAR));
735 MultiByteToWideChar(CP_ACP, 0, pszTargetName, strlen(pszTargetName)+1,
736 target, target_size);
737 }
738
739 ret = ntlm_InitializeSecurityContextW(phCredential, phContext, target,
740 fContextReq, Reserved1, TargetDataRep, pInput, Reserved2,
741 phNewContext, pOutput, pfContextAttr, ptsExpiry);
742
743 HeapFree(GetProcessHeap(), 0, target);
744 }
745 else
746 {
747 ret = SEC_E_INVALID_HANDLE;
748 }
749 return ret;
750 }
751
752 /***********************************************************************
753 * AcceptSecurityContext
754 */
755 static SECURITY_STATUS SEC_ENTRY ntlm_AcceptSecurityContext(
756 PCredHandle phCredential, PCtxtHandle phContext, PSecBufferDesc pInput,
757 ULONG fContextReq, ULONG TargetDataRep, PCtxtHandle phNewContext,
758 PSecBufferDesc pOutput, ULONG *pfContextAttr, PTimeStamp ptsExpiry)
759 {
760 SECURITY_STATUS ret;
761 char *buffer, *want_flags = NULL;
762 PBYTE bin;
763 int buffer_len, bin_len, max_len = NTLM_MAX_BUF;
764 ULONG ctxt_attr = 0;
765 PNegoHelper helper;
766
767 TRACE("%p %p %p %ld %ld %p %p %p %p\n", phCredential, phContext, pInput,
768 fContextReq, TargetDataRep, phNewContext, pOutput, pfContextAttr,
769 ptsExpiry);
770
771 if (!phCredential)
772 return SEC_E_INVALID_HANDLE;
773
774 helper = (PNegoHelper)phCredential->dwLower;
775
776 buffer = HeapAlloc(GetProcessHeap(), 0, sizeof(char) * NTLM_MAX_BUF);
777 bin = HeapAlloc(GetProcessHeap(),0, sizeof(BYTE) * NTLM_MAX_BUF);
778
779 if(helper->mode != NTLM_SERVER)
780 {
781 ret = SEC_E_INVALID_HANDLE;
782 goto asc_end;
783 }
784
785 if(TargetDataRep == SECURITY_NETWORK_DREP){
786 TRACE("Using SECURITY_NETWORK_DREP\n");
787 }
788
789 if(phContext == NULL)
790 {
791 /* This is the first call to AcceptSecurityHandle */
792 if(pInput == NULL)
793 {
794 ret = SEC_E_INCOMPLETE_MESSAGE;
795 goto asc_end;
796 }
797
798 if(pInput->cBuffers < 1)
799 {
800 ret = SEC_E_INCOMPLETE_MESSAGE;
801 goto asc_end;
802 }
803
804 if(pInput->pBuffers[0].cbBuffer > max_len)
805 {
806 ret = SEC_E_INVALID_TOKEN;
807 goto asc_end;
808 }
809 else
810 bin_len = pInput->pBuffers[0].cbBuffer;
811
812 /* Handle all the flags */
813 want_flags = HeapAlloc(GetProcessHeap(), 0, 73);
814 if(want_flags == NULL)
815 {
816 TRACE("Failed to allocate memory for the want_flags!\n");
817 ret = SEC_E_INSUFFICIENT_MEMORY;
818 goto asc_end;
819 }
820 lstrcpyA(want_flags, "SF");
821 if(fContextReq & ASC_REQ_ALLOCATE_MEMORY)
822 {
823 FIXME("ASC_REQ_ALLOCATE_MEMORY stub\n");
824 }
825 if(fContextReq & ASC_REQ_CONFIDENTIALITY)
826 {
827 lstrcatA(want_flags, " NTLMSSP_FEATURE_SEAL");
828 }
829 if(fContextReq & ASC_REQ_CONNECTION)
830 {
831 /* This is default, so we'll enable it */
832 lstrcatA(want_flags, " NTLMSSP_FEATURE_SESSION_KEY");
833 ctxt_attr |= ASC_RET_CONNECTION;
834 }
835 if(fContextReq & ASC_REQ_EXTENDED_ERROR)
836 {
837 FIXME("ASC_REQ_EXTENDED_ERROR stub\n");
838 }
839 if(fContextReq & ASC_REQ_INTEGRITY)
840 {
841 lstrcatA(want_flags, " NTLMSSP_FEATURE_SIGN");
842 }
843 if(fContextReq & ASC_REQ_MUTUAL_AUTH)
844 {
845 FIXME("ASC_REQ_MUTUAL_AUTH stub\n");
846 }
847 if(fContextReq & ASC_REQ_REPLAY_DETECT)
848 {
849 FIXME("ASC_REQ_REPLAY_DETECT stub\n");
850 }
851 if(fContextReq & ISC_REQ_SEQUENCE_DETECT)
852 {
853 FIXME("ASC_REQ_SEQUENCE_DETECT stub\n");
854 }
855 if(fContextReq & ISC_REQ_STREAM)
856 {
857 FIXME("ASC_REQ_STREAM stub\n");
858 }
859 /* Done with the flags */
860
861 if(lstrlenA(want_flags) > 3)
862 {
863 TRACE("Server set want_flags: %s\n", debugstr_a(want_flags));
864 lstrcpynA(buffer, want_flags, max_len - 1);
865 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) !=
866 SEC_E_OK)
867 goto asc_end;
868 if(!strncmp(buffer, "BH", 2))
869 TRACE("Helper doesn't understand new command set\n");
870 }
871
872 /* This is the YR request from the client, encode to base64 */
873
874 memcpy(bin, pInput->pBuffers[0].pvBuffer, bin_len);
875
876 lstrcpynA(buffer, "YR ", max_len-1);
877
878 if((ret = encodeBase64(bin, bin_len, buffer+3, max_len-3,
879 &buffer_len)) != SEC_E_OK)
880 {
881 goto asc_end;
882 }
883
884 TRACE("Client sent: %s\n", debugstr_a(buffer));
885
886 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) !=
887 SEC_E_OK)
888 {
889 goto asc_end;
890 }
891
892 TRACE("Reply from ntlm_auth: %s\n", debugstr_a(buffer));
893 /* The expected answer is TT <base64 blob> */
894
895 if(strncmp(buffer, "TT ", 3) != 0)
896 {
897 ret = SEC_E_INTERNAL_ERROR;
898 goto asc_end;
899 }
900
901 if((ret = decodeBase64(buffer+3, buffer_len-3, bin, max_len,
902 &bin_len)) != SEC_E_OK)
903 {
904 goto asc_end;
905 }
906
907 /* send this to the client */
908 if(pOutput == NULL)
909 {
910 ret = SEC_E_INSUFFICIENT_MEMORY;
911 goto asc_end;
912 }
913
914 if(pOutput->cBuffers < 1)
915 {
916 ret = SEC_E_INSUFFICIENT_MEMORY;
917 goto asc_end;
918 }
919
920 pOutput->pBuffers[0].cbBuffer = bin_len;
921 pOutput->pBuffers[0].BufferType = SECBUFFER_DATA;
922 memcpy(pOutput->pBuffers[0].pvBuffer, bin, bin_len);
923 ret = SEC_I_CONTINUE_NEEDED;
924
925 }
926 else
927 {
928 /* we expect a KK request from client */
929 if(pInput == NULL)
930 {
931 ret = SEC_E_INCOMPLETE_MESSAGE;
932 goto asc_end;
933 }
934
935 if(pInput->cBuffers < 1)
936 {
937 ret = SEC_E_INCOMPLETE_MESSAGE;
938 goto asc_end;
939 }
940
941 if(pInput->pBuffers[0].cbBuffer > max_len)
942 {
943 ret = SEC_E_INVALID_TOKEN;
944 goto asc_end;
945 }
946 else
947 bin_len = pInput->pBuffers[0].cbBuffer;
948
949 memcpy(bin, pInput->pBuffers[0].pvBuffer, bin_len);
950
951 lstrcpynA(buffer, "KK ", max_len-1);
952
953 if((ret = encodeBase64(bin, bin_len, buffer+3, max_len-3,
954 &buffer_len)) != SEC_E_OK)
955 {
956 goto asc_end;
957 }
958
959 TRACE("Client sent: %s\n", debugstr_a(buffer));
960
961 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) !=
962 SEC_E_OK)
963 {
964 goto asc_end;
965 }
966
967 TRACE("Reply from ntlm_auth: %s\n", debugstr_a(buffer));
968
969 if(strncmp(buffer, "AF ", 3) != 0)
970 {
971 if(strncmp(buffer, "NA ", 3) == 0)
972 {
973 ret = SEC_E_LOGON_DENIED;
974 goto asc_end;
975 }
976 else
977 {
978 ret = SEC_E_INTERNAL_ERROR;
979 goto asc_end;
980 }
981 }
982 pOutput->pBuffers[0].cbBuffer = 0;
983 ret = SEC_E_OK;
984
985 TRACE("Getting negotiated flags\n");
986 lstrcpynA(buffer, "GF", max_len - 1);
987 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
988 goto asc_end;
989
990 if(buffer_len < 3)
991 {
992 TRACE("No flags negotiated, or helper does not support GF command\n");
993 }
994 else
995 {
996 TRACE("Negotiated %s\n", debugstr_a(buffer));
997 sscanf(buffer + 3, "%lx", &(helper->neg_flags));
998 TRACE("Stored 0x%08lx as flags\n", helper->neg_flags);
999 }
1000
1001 TRACE("Getting session key\n");
1002 lstrcpynA(buffer, "GK", max_len - 1);
1003 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
1004 goto asc_end;
1005
1006 if(buffer_len < 3)
1007 TRACE("Helper does not support GK command\n");
1008 else
1009 {
1010 if(strncmp(buffer, "BH ", 3) == 0)
1011 {
1012 TRACE("Helper sent %s\n", debugstr_a(buffer+3));
1013 helper->valid_session_key = FALSE;
1014 helper->session_key = HeapAlloc(GetProcessHeap(), 0, 16);
1015 /*FIXME: Generate the dummy session key = MD4(MD4(password))*/
1016 memset(helper->session_key, 0 , 16);
1017 }
1018 else if(strncmp(buffer, "GK ", 3) == 0)
1019 {
1020 if((ret = decodeBase64(buffer+3, buffer_len-3, bin, max_len,
1021 &bin_len)) != SEC_E_OK)
1022 {
1023 TRACE("Failed to decode session key\n");
1024 }
1025 TRACE("Session key is %s\n", debugstr_a(buffer+3));
1026 helper->valid_session_key = TRUE;
1027 if(!helper->session_key)
1028 helper->session_key = HeapAlloc(GetProcessHeap(), 0, 16);
1029 if(!helper->session_key)
1030 {
1031 TRACE("Failed to allocate memory for session key\n");
1032 ret = SEC_E_INTERNAL_ERROR;
1033 goto asc_end;
1034 }
1035 memcpy(helper->session_key, bin, 16);
1036 }
1037 }
1038 helper->crypt.ntlm.a4i = SECUR32_arc4Alloc();
1039 SECUR32_arc4Init(helper->crypt.ntlm.a4i, helper->session_key, 16);
1040 helper->crypt.ntlm.seq_num = 0l;
1041 }
1042
1043 phNewContext->dwUpper = ctxt_attr;
1044 phNewContext->dwLower = (ULONG_PTR)helper;
1045
1046 asc_end:
1047 HeapFree(GetProcessHeap(), 0, want_flags);
1048 HeapFree(GetProcessHeap(), 0, buffer);
1049 HeapFree(GetProcessHeap(), 0, bin);
1050 return ret;
1051 }
1052
1053 /***********************************************************************
1054 * CompleteAuthToken
1055 */
1056 static SECURITY_STATUS SEC_ENTRY ntlm_CompleteAuthToken(PCtxtHandle phContext,
1057 PSecBufferDesc pToken)
1058 {
1059 /* We never need to call CompleteAuthToken anyway */
1060 TRACE("%p %p\n", phContext, pToken);
1061 if (!phContext)
1062 return SEC_E_INVALID_HANDLE;
1063
1064 return SEC_E_OK;
1065 }
1066
1067 /***********************************************************************
1068 * DeleteSecurityContext
1069 */
1070 static SECURITY_STATUS SEC_ENTRY ntlm_DeleteSecurityContext(PCtxtHandle phContext)
1071 {
1072 SECURITY_STATUS ret;
1073
1074 TRACE("%p\n", phContext);
1075 if (phContext)
1076 {
1077 phContext->dwUpper = 0;
1078 phContext->dwLower = 0;
1079 ret = SEC_E_OK;
1080 }
1081 else
1082 {
1083 ret = SEC_E_INVALID_HANDLE;
1084 }
1085 return ret;
1086 }
1087
1088 /***********************************************************************
1089 * QueryContextAttributesW
1090 */
1091 static SECURITY_STATUS SEC_ENTRY ntlm_QueryContextAttributesW(PCtxtHandle phContext,
1092 unsigned long ulAttribute, void *pBuffer)
1093 {
1094 TRACE("%p %ld %p\n", phContext, ulAttribute, pBuffer);
1095 if (!phContext)
1096 return SEC_E_INVALID_HANDLE;
1097
1098 switch(ulAttribute)
1099 {
1100 #define _x(x) case (x) : FIXME(#x" stub\n"); break
1101 _x(SECPKG_ATTR_ACCESS_TOKEN);
1102 _x(SECPKG_ATTR_AUTHORITY);
1103 _x(SECPKG_ATTR_DCE_INFO);
1104 case SECPKG_ATTR_FLAGS:
1105 {
1106 PSecPkgContext_Flags spcf = (PSecPkgContext_Flags)pBuffer;
1107 PNegoHelper helper = (PNegoHelper)phContext->dwLower;
1108
1109 spcf->Flags = 0;
1110 if(helper->neg_flags & NTLMSSP_NEGOTIATE_SIGN)
1111 spcf->Flags |= ISC_RET_INTEGRITY;
1112 if(helper->neg_flags & NTLMSSP_NEGOTIATE_SEAL)
1113 spcf->Flags |= ISC_RET_CONFIDENTIALITY;
1114 return SEC_E_OK;
1115 }
1116 _x(SECPKG_ATTR_KEY_INFO);
1117 _x(SECPKG_ATTR_LIFESPAN);
1118 _x(SECPKG_ATTR_NAMES);
1119 _x(SECPKG_ATTR_NATIVE_NAMES);
1120 _x(SECPKG_ATTR_NEGOTIATION_INFO);
1121 _x(SECPKG_ATTR_PACKAGE_INFO);
1122 _x(SECPKG_ATTR_PASSWORD_EXPIRY);
1123 _x(SECPKG_ATTR_SESSION_KEY);
1124 case SECPKG_ATTR_SIZES:
1125 {
1126 PSecPkgContext_Sizes spcs = (PSecPkgContext_Sizes)pBuffer;
1127 spcs->cbMaxToken = NTLM_MAX_BUF;
1128 spcs->cbMaxSignature = 16;
1129 spcs->cbBlockSize = 0;
1130 spcs->cbSecurityTrailer = 16;
1131 return SEC_E_OK;
1132 }
1133 _x(SECPKG_ATTR_STREAM_SIZES);
1134 _x(SECPKG_ATTR_TARGET_INFORMATION);
1135 #undef _x
1136 default:
1137 TRACE("Unknown value %ld passed for ulAttribute\n", ulAttribute);
1138 }
1139
1140 return SEC_E_UNSUPPORTED_FUNCTION;
1141 }
1142
1143 /***********************************************************************
1144 * QueryContextAttributesA
1145 */
1146 static SECURITY_STATUS SEC_ENTRY ntlm_QueryContextAttributesA(PCtxtHandle phContext,
1147 unsigned long ulAttribute, void *pBuffer)
1148 {
1149 return ntlm_QueryContextAttributesW(phContext, ulAttribute, pBuffer);
1150 }
1151
1152 /***********************************************************************
1153 * ImpersonateSecurityContext
1154 */
1155 static SECURITY_STATUS SEC_ENTRY ntlm_ImpersonateSecurityContext(PCtxtHandle phContext)
1156 {
1157 SECURITY_STATUS ret;
1158
1159 TRACE("%p\n", phContext);
1160 if (phContext)
1161 {
1162 ret = SEC_E_UNSUPPORTED_FUNCTION;
1163 }
1164 else
1165 {
1166 ret = SEC_E_INVALID_HANDLE;
1167 }
1168 return ret;
1169 }
1170
1171 /***********************************************************************
1172 * RevertSecurityContext
1173 */
1174 static SECURITY_STATUS SEC_ENTRY ntlm_RevertSecurityContext(PCtxtHandle phContext)
1175 {
1176 SECURITY_STATUS ret;
1177
1178 TRACE("%p\n", phContext);
1179 if (phContext)
1180 {
1181 ret = SEC_E_UNSUPPORTED_FUNCTION;
1182 }
1183 else
1184 {
1185 ret = SEC_E_INVALID_HANDLE;
1186 }
1187 return ret;
1188 }
1189
1190 /***********************************************************************
1191 * MakeSignature
1192 */
1193 static SECURITY_STATUS SEC_ENTRY ntlm_MakeSignature(PCtxtHandle phContext, ULONG fQOP,
1194 PSecBufferDesc pMessage, ULONG MessageSeqNo)
1195 {
1196 PNegoHelper helper;
1197 ULONG sign_version = 1;
1198
1199 TRACE("%p %ld %p %ld\n", phContext, fQOP, pMessage, MessageSeqNo);
1200 if (!phContext)
1201 return SEC_E_INVALID_HANDLE;
1202
1203 if(fQOP)
1204 FIXME("Ignoring fQOP 0x%08lx", fQOP);
1205
1206 if(MessageSeqNo)
1207 FIXME("Ignoring MessageSeqNo");
1208
1209 if(!pMessage || !pMessage->pBuffers || pMessage->cBuffers < 2 ||
1210 pMessage->pBuffers[0].BufferType != SECBUFFER_TOKEN ||
1211 !pMessage->pBuffers[0].pvBuffer)
1212 return SEC_E_INVALID_TOKEN;
1213
1214 if(pMessage->pBuffers[0].cbBuffer < 16)
1215 return SEC_E_BUFFER_TOO_SMALL;
1216
1217 helper = (PNegoHelper)phContext->dwLower;
1218 TRACE("Negotiated flags are: 0x%08lx\n", helper->neg_flags);
1219 if(helper->neg_flags & NTLMSSP_NEGOTIATE_NTLM2)
1220 {
1221 FIXME("Can't handle NTLMv2 signing yet. Aborting.\n");
1222 return SEC_E_UNSUPPORTED_FUNCTION;
1223 }
1224 if(helper->neg_flags & NTLMSSP_NEGOTIATE_SIGN)
1225 {
1226 PBYTE sig = pMessage->pBuffers[0].pvBuffer;
1227 ULONG crc = ComputeCrc32(pMessage->pBuffers[1].pvBuffer,
1228 pMessage->pBuffers[1].cbBuffer);
1229
1230 sig[ 0] = (sign_version >> 0) & 0xff;
1231 sig[ 1] = (sign_version >> 8) & 0xff;
1232 sig[ 2] = (sign_version >> 16) & 0xff;
1233 sig[ 3] = (sign_version >> 24) & 0xff;
1234 memset(sig+4, 0, 4);
1235 sig[ 8] = (crc >> 0) & 0xff;
1236 sig[ 9] = (crc >> 8) & 0xff;
1237 sig[10] = (crc >> 16) & 0xff;
1238 sig[11] = (crc >> 24) & 0xff;
1239 sig[12] = (helper->crypt.ntlm.seq_num >> 0) & 0xff;
1240 sig[13] = (helper->crypt.ntlm.seq_num >> 8) & 0xff;
1241 sig[14] = (helper->crypt.ntlm.seq_num >> 16) & 0xff;
1242 sig[15] = (helper->crypt.ntlm.seq_num >> 24) & 0xff;
1243
1244 ++(helper->crypt.ntlm.seq_num);
1245
1246 SECUR32_arc4Process(helper->crypt.ntlm.a4i, sig+4, 12);
1247 return SEC_E_OK;
1248 }
1249
1250 if(helper->neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCHANGE)
1251 {
1252 FIXME("Can't handle encrypted session key yet. Aborting.\n");
1253 return SEC_E_UNSUPPORTED_FUNCTION;
1254 }
1255
1256 if(helper->neg_flags & NTLMSSP_NEGOTIATE_ALWAYS_SIGN || helper->neg_flags == 0)
1257 {
1258 TRACE("Generating dummy signature\n");
1259 /* A dummy signature is 0x01 followed by 15 bytes of 0x00 */
1260 memset(pMessage->pBuffers[0].pvBuffer, 0, 16);
1261 memset(pMessage->pBuffers[0].pvBuffer, 0x01, 1);
1262 pMessage->pBuffers[0].cbBuffer = 16;
1263 return SEC_E_OK;
1264 }
1265
1266 return SEC_E_UNSUPPORTED_FUNCTION;
1267 }
1268
1269 /***********************************************************************
1270 * VerifySignature
1271 */
1272 static SECURITY_STATUS SEC_ENTRY ntlm_VerifySignature(PCtxtHandle phContext,
1273 PSecBufferDesc pMessage, ULONG MessageSeqNo, PULONG pfQOP)
1274 {
1275 PNegoHelper helper;
1276 ULONG fQOP = 0;
1277
1278 TRACE("%p %p %ld %p\n", phContext, pMessage, MessageSeqNo, pfQOP);
1279 if(!phContext)
1280 return SEC_E_INVALID_HANDLE;
1281
1282 if(!pMessage || !pMessage->pBuffers || pMessage->cBuffers < 2 ||
1283 pMessage->pBuffers[0].BufferType != SECBUFFER_TOKEN ||
1284 !pMessage->pBuffers[0].pvBuffer)
1285 return SEC_E_INVALID_TOKEN;
1286
1287 if(pMessage->pBuffers[0].cbBuffer < 16)
1288 return SEC_E_BUFFER_TOO_SMALL;
1289
1290 if(MessageSeqNo)
1291 FIXME("Ignoring MessageSeqNo\n");
1292
1293 helper = (PNegoHelper)phContext->dwLower;
1294 TRACE("Negotiated flags: 0x%08lx\n", helper->neg_flags);
1295
1296 if(helper->neg_flags & NTLMSSP_NEGOTIATE_NTLM2)
1297 {
1298 FIXME("Can't handle NTLMv2 signing yet. Aborting.\n");
1299 return SEC_E_UNSUPPORTED_FUNCTION;
1300 }
1301
1302 if(helper->neg_flags & NTLMSSP_NEGOTIATE_SIGN)
1303 {
1304 SecBufferDesc local_desc;
1305 SecBuffer local_buff[2];
1306 BYTE local_sig[16];
1307
1308 local_desc.ulVersion = SECBUFFER_VERSION;
1309 local_desc.cBuffers = 2;
1310 local_desc.pBuffers = local_buff;
1311 local_buff[0].BufferType = SECBUFFER_TOKEN;
1312 local_buff[0].cbBuffer = 16;
1313 local_buff[0].pvBuffer = local_sig;
1314 local_buff[1].BufferType = SECBUFFER_DATA;
1315 local_buff[1].cbBuffer = pMessage->pBuffers[1].cbBuffer;
1316 local_buff[1].pvBuffer = pMessage->pBuffers[1].pvBuffer;
1317
1318 ntlm_MakeSignature(phContext, fQOP, &local_desc, MessageSeqNo);
1319
1320 if(memcmp(((PBYTE)local_buff[0].pvBuffer) + 8, ((PBYTE)pMessage->pBuffers[0].pvBuffer) + 8, 8))
1321 return SEC_E_MESSAGE_ALTERED;
1322
1323 return SEC_E_OK;
1324 }
1325
1326 if(helper->neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCHANGE)
1327 {
1328 FIXME("Can't handle encrypted session keys yet. Aborting.\n");
1329 return SEC_E_UNSUPPORTED_FUNCTION;
1330 }
1331
1332 if(helper->neg_flags & NTLMSSP_NEGOTIATE_ALWAYS_SIGN || helper->neg_flags == 0)
1333 {
1334 const BYTE dummy_sig[] = {0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1335 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
1336 TRACE("Assuming dummy signature.\n");
1337 if(memcmp(pMessage->pBuffers[0].pvBuffer, dummy_sig, sizeof(dummy_sig)) != 0)
1338 {
1339 TRACE("Failed to verify the packet signature. Not a dummy signature?\n");
1340 return SEC_E_MESSAGE_ALTERED;
1341 }
1342 else
1343 {
1344 pfQOP = &fQOP;
1345 return SEC_E_OK;
1346 }
1347 }
1348
1349 return SEC_E_UNSUPPORTED_FUNCTION;
1350 }
1351
1352 /***********************************************************************
1353 * FreeCredentialsHandle
1354 */
1355 static SECURITY_STATUS SEC_ENTRY ntlm_FreeCredentialsHandle(
1356 PCredHandle phCredential)
1357 {
1358 SECURITY_STATUS ret;
1359
1360 if(phCredential){
1361 PNegoHelper helper = (PNegoHelper) phCredential->dwLower;
1362 phCredential->dwUpper = 0;
1363 phCredential->dwLower = 0;
1364 HeapFree(GetProcessHeap(), 0, helper->session_key);
1365 cleanup_helper(helper);
1366 ret = SEC_E_OK;
1367 }
1368 else
1369 ret = SEC_E_OK;
1370
1371 return ret;
1372 }
1373
1374 /***********************************************************************
1375 * EncryptMessage
1376 */
1377 static SECURITY_STATUS SEC_ENTRY ntlm_EncryptMessage(PCtxtHandle phContext,
1378 ULONG fQOP, PSecBufferDesc pMessage, ULONG MessageSeqNo)
1379 {
1380 PNegoHelper helper;
1381 TRACE("(%p %ld %p %ld)\n", phContext, fQOP, pMessage, MessageSeqNo);
1382
1383 if(!phContext)
1384 return SEC_E_INVALID_HANDLE;
1385
1386 if(fQOP)
1387 FIXME("Ignoring fQOP\n");
1388
1389 if(MessageSeqNo)
1390 FIXME("Ignoring MessageSeqNo\n");
1391
1392 if(!pMessage || !pMessage->pBuffers || pMessage->cBuffers < 2 ||
1393 pMessage->pBuffers[0].BufferType != SECBUFFER_TOKEN ||
1394 !pMessage->pBuffers[0].pvBuffer)
1395 return SEC_E_INVALID_TOKEN;
1396
1397 if(pMessage->pBuffers[0].cbBuffer < 16)
1398 return SEC_E_BUFFER_TOO_SMALL;
1399
1400 helper = (PNegoHelper) phContext->dwLower;
1401
1402 if(helper->neg_flags & NTLMSSP_NEGOTIATE_NTLM2)
1403 {
1404 FIXME("Can't handle NTLMv2 encryption yet, aborting\n");
1405 return SEC_E_UNSUPPORTED_FUNCTION;
1406 }
1407 else
1408 {
1409 PBYTE sig = pMessage->pBuffers[0].pvBuffer;
1410 ULONG crc = ComputeCrc32(pMessage->pBuffers[1].pvBuffer,
1411 pMessage->pBuffers[1].cbBuffer);
1412 ULONG sign_version = 1l;
1413
1414 sig[ 0] = (sign_version >> 0) & 0xff;
1415 sig[ 1] = (sign_version >> 8) & 0xff;
1416 sig[ 2] = (sign_version >> 16) & 0xff;
1417 sig[ 3] = (sign_version >> 24) & 0xff;
1418 memset(sig+4, 0, 4);
1419 sig[ 8] = (crc >> 0) & 0xff;
1420 sig[ 9] = (crc >> 8) & 0xff;
1421 sig[10] = (crc >> 16) & 0xff;
1422 sig[11] = (crc >> 24) & 0xff;
1423 sig[12] = (helper->crypt.ntlm.seq_num >> 0) & 0xff;
1424 sig[13] = (helper->crypt.ntlm.seq_num >> 8) & 0xff;
1425 sig[14] = (helper->crypt.ntlm.seq_num >> 16) & 0xff;
1426 sig[15] = (helper->crypt.ntlm.seq_num >> 24) & 0xff;
1427
1428 SECUR32_arc4Process(helper->crypt.ntlm.a4i, pMessage->pBuffers[1].pvBuffer,
1429 pMessage->pBuffers[1].cbBuffer);
1430 SECUR32_arc4Process(helper->crypt.ntlm.a4i, sig+4, 12);
1431
1432 if(helper->neg_flags & NTLMSSP_NEGOTIATE_ALWAYS_SIGN || helper->neg_flags == 0)
1433 memset(sig+4, 0, 4);
1434
1435 ++(helper->crypt.ntlm.seq_num);
1436
1437 }
1438
1439 return SEC_E_OK;
1440 }
1441
1442 /***********************************************************************
1443 * DecryptMessage
1444 */
1445 static SECURITY_STATUS SEC_ENTRY ntlm_DecryptMessage(PCtxtHandle phContext,
1446 PSecBufferDesc pMessage, ULONG MessageSeqNo, PULONG pfQOP)
1447 {
1448 SECURITY_STATUS ret;
1449 ULONG ntlmssp_flags_save;
1450 PNegoHelper helper;
1451 TRACE("(%p %p %ld %p)\n", phContext, pMessage, MessageSeqNo, pfQOP);
1452
1453 if(!phContext)
1454 return SEC_E_INVALID_HANDLE;
1455
1456 if(MessageSeqNo)
1457 FIXME("Ignoring MessageSeqNo\n");
1458
1459 if(!pMessage || !pMessage->pBuffers || pMessage->cBuffers < 2 ||
1460 pMessage->pBuffers[0].BufferType != SECBUFFER_TOKEN ||
1461 !pMessage->pBuffers[0].pvBuffer)
1462 return SEC_E_INVALID_TOKEN;
1463
1464 if(pMessage->pBuffers[0].cbBuffer < 16)
1465 return SEC_E_BUFFER_TOO_SMALL;
1466
1467 helper = (PNegoHelper) phContext->dwLower;
1468
1469 if(helper->neg_flags & NTLMSSP_NEGOTIATE_NTLM2)
1470 {
1471 FIXME("Can't handle NTLMv2 encryption yet, aborting\n");
1472 return SEC_E_UNSUPPORTED_FUNCTION;
1473 }
1474 else
1475 {
1476 SECUR32_arc4Process(helper->crypt.ntlm.a4i,
1477 pMessage->pBuffers[1].pvBuffer, pMessage->pBuffers[1].cbBuffer);
1478 }
1479
1480 /* Make sure we use a session key for the signature check, EncryptMessage
1481 * always does that, even in the dummy case */
1482 ntlmssp_flags_save = helper->neg_flags;
1483
1484 helper->neg_flags |= NTLMSSP_NEGOTIATE_SIGN;
1485 ret = ntlm_VerifySignature(phContext, pMessage, MessageSeqNo, pfQOP);
1486
1487 helper->neg_flags = ntlmssp_flags_save;
1488
1489 return ret;
1490 }
1491
1492 static SecurityFunctionTableA ntlmTableA = {
1493 1,
1494 NULL, /* EnumerateSecurityPackagesA */
1495 ntlm_QueryCredentialsAttributesA, /* QueryCredentialsAttributesA */
1496 ntlm_AcquireCredentialsHandleA, /* AcquireCredentialsHandleA */
1497 ntlm_FreeCredentialsHandle, /* FreeCredentialsHandle */
1498 NULL, /* Reserved2 */
1499 ntlm_InitializeSecurityContextA, /* InitializeSecurityContextA */
1500 ntlm_AcceptSecurityContext, /* AcceptSecurityContext */
1501 ntlm_CompleteAuthToken, /* CompleteAuthToken */
1502 ntlm_DeleteSecurityContext, /* DeleteSecurityContext */
1503 NULL, /* ApplyControlToken */
1504 ntlm_QueryContextAttributesA, /* QueryContextAttributesA */
1505 ntlm_ImpersonateSecurityContext, /* ImpersonateSecurityContext */
1506 ntlm_RevertSecurityContext, /* RevertSecurityContext */
1507 ntlm_MakeSignature, /* MakeSignature */
1508 ntlm_VerifySignature, /* VerifySignature */
1509 FreeContextBuffer, /* FreeContextBuffer */
1510 NULL, /* QuerySecurityPackageInfoA */
1511 NULL, /* Reserved3 */
1512 NULL, /* Reserved4 */
1513 NULL, /* ExportSecurityContext */
1514 NULL, /* ImportSecurityContextA */
1515 NULL, /* AddCredentialsA */
1516 NULL, /* Reserved8 */
1517 NULL, /* QuerySecurityContextToken */
1518 ntlm_EncryptMessage, /* EncryptMessage */
1519 ntlm_DecryptMessage, /* DecryptMessage */
1520 NULL, /* SetContextAttributesA */
1521 };
1522
1523 static SecurityFunctionTableW ntlmTableW = {
1524 1,
1525 NULL, /* EnumerateSecurityPackagesW */
1526 ntlm_QueryCredentialsAttributesW, /* QueryCredentialsAttributesW */
1527 ntlm_AcquireCredentialsHandleW, /* AcquireCredentialsHandleW */
1528 ntlm_FreeCredentialsHandle, /* FreeCredentialsHandle */
1529 NULL, /* Reserved2 */
1530 ntlm_InitializeSecurityContextW, /* InitializeSecurityContextW */
1531 ntlm_AcceptSecurityContext, /* AcceptSecurityContext */
1532 ntlm_CompleteAuthToken, /* CompleteAuthToken */
1533 ntlm_DeleteSecurityContext, /* DeleteSecurityContext */
1534 NULL, /* ApplyControlToken */
1535 ntlm_QueryContextAttributesW, /* QueryContextAttributesW */
1536 ntlm_ImpersonateSecurityContext, /* ImpersonateSecurityContext */
1537 ntlm_RevertSecurityContext, /* RevertSecurityContext */
1538 ntlm_MakeSignature, /* MakeSignature */
1539 ntlm_VerifySignature, /* VerifySignature */
1540 FreeContextBuffer, /* FreeContextBuffer */
1541 NULL, /* QuerySecurityPackageInfoW */
1542 NULL, /* Reserved3 */
1543 NULL, /* Reserved4 */
1544 NULL, /* ExportSecurityContext */
1545 NULL, /* ImportSecurityContextW */
1546 NULL, /* AddCredentialsW */
1547 NULL, /* Reserved8 */
1548 NULL, /* QuerySecurityContextToken */
1549 ntlm_EncryptMessage, /* EncryptMessage */
1550 ntlm_DecryptMessage, /* DecryptMessage */
1551 NULL, /* SetContextAttributesW */
1552 };
1553
1554 #define NTLM_COMMENT \
1555 { 'N', 'T', 'L', 'M', ' ', \
1556 'S', 'e', 'c', 'u', 'r', 'i', 't', 'y', ' ', \
1557 'P', 'a', 'c', 'k', 'a', 'g', 'e', 0}
1558
1559 static CHAR ntlm_comment_A[] = NTLM_COMMENT;
1560 static WCHAR ntlm_comment_W[] = NTLM_COMMENT;
1561
1562 #define NTLM_NAME {'N', 'T', 'L', 'M', 0}
1563
1564 static char ntlm_name_A[] = NTLM_NAME;
1565 static WCHAR ntlm_name_W[] = NTLM_NAME;
1566
1567 /* According to Windows, NTLM has the following capabilities. */
1568 #define CAPS ( \
1569 SECPKG_FLAG_INTEGRITY | \
1570 SECPKG_FLAG_PRIVACY | \
1571 SECPKG_FLAG_TOKEN_ONLY | \
1572 SECPKG_FLAG_CONNECTION | \
1573 SECPKG_FLAG_MULTI_REQUIRED | \
1574 SECPKG_FLAG_IMPERSONATION | \
1575 SECPKG_FLAG_ACCEPT_WIN32_NAME | \
1576 SECPKG_FLAG_READONLY_WITH_CHECKSUM)
1577
1578 static const SecPkgInfoW infoW = {
1579 CAPS,
1580 1,
1581 RPC_C_AUTHN_WINNT,
1582 NTLM_MAX_BUF,
1583 ntlm_name_W,
1584 ntlm_comment_W
1585 };
1586
1587 static const SecPkgInfoA infoA = {
1588 CAPS,
1589 1,
1590 RPC_C_AUTHN_WINNT,
1591 NTLM_MAX_BUF,
1592 ntlm_name_A,
1593 ntlm_comment_A
1594 };
1595
1596 void SECUR32_initNTLMSP(void)
1597 {
1598 SECURITY_STATUS ret;
1599 PNegoHelper helper;
1600 static CHAR ntlm_auth[] = "ntlm_auth",
1601 version[] = "--version";
1602
1603 SEC_CHAR *args[] = {
1604 ntlm_auth,
1605 version,
1606 NULL };
1607
1608 if((ret = fork_helper(&helper, "ntlm_auth", args)) != SEC_E_OK)
1609 {
1610 /* Cheat and allocate a helper anyway, so cleanup later will work. */
1611 helper = HeapAlloc(GetProcessHeap(),0, sizeof(PNegoHelper));
1612 helper->version = -1;
1613 }
1614 else
1615 check_version(helper);
1616
1617 if(helper->version > 2)
1618 {
1619 SecureProvider *provider = SECUR32_addProvider(&ntlmTableA, &ntlmTableW, NULL);
1620 SECUR32_addPackages(provider, 1L, &infoA, &infoW);
1621 }
1622 cleanup_helper(helper);
1623 }
GDI DIB driver