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WHATSNEW: Prepare Samba 3.5.4 release notes.
[Samba.git] / source3 / utils / ntlm_auth.c
blobafd0b994a7e04c0f528964b9fa59b1236ef6a09b
1 /*
2 Unix SMB/CIFS implementation.
3
4 Winbind status program.
5
6 Copyright (C) Tim Potter 2000-2003
7 Copyright (C) Andrew Bartlett <abartlet@samba.org> 2003-2004
8 Copyright (C) Francesco Chemolli <kinkie@kame.usr.dsi.unimi.it> 2000
9 Copyright (C) Robert O'Callahan 2006 (added cached credential code).
10 Copyright (C) Kai Blin <kai@samba.org> 2008
11
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 3 of the License, or
15 (at your option) any later version.
16
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
21
22 You should have received a copy of the GNU General Public License
23 along with this program. If not, see <http://www.gnu.org/licenses/>.
24 */
25
26 #include "includes.h"
27 #include "utils/ntlm_auth.h"
28 #include "../libcli/auth/libcli_auth.h"
29 #include "../libcli/auth/spnego.h"
30 #include "smb_krb5.h"
31 #include <iniparser.h>
32
33 #ifndef PAM_WINBIND_CONFIG_FILE
34 #define PAM_WINBIND_CONFIG_FILE "/etc/security/pam_winbind.conf"
35 #endif
36
37 #define WINBIND_KRB5_AUTH 0x00000080
38
39 #undef DBGC_CLASS
40 #define DBGC_CLASS DBGC_WINBIND
41
42 #define INITIAL_BUFFER_SIZE 300
43 #define MAX_BUFFER_SIZE 630000
44
45 enum stdio_helper_mode {
46 SQUID_2_4_BASIC,
47 SQUID_2_5_BASIC,
48 SQUID_2_5_NTLMSSP,
49 NTLMSSP_CLIENT_1,
50 GSS_SPNEGO,
51 GSS_SPNEGO_CLIENT,
52 NTLM_SERVER_1,
53 NTLM_CHANGE_PASSWORD_1,
54 NUM_HELPER_MODES
55 };
56
57 enum ntlm_auth_cli_state {
58 CLIENT_INITIAL = 0,
59 CLIENT_RESPONSE,
60 CLIENT_FINISHED,
61 CLIENT_ERROR
62 };
63
64 enum ntlm_auth_svr_state {
65 SERVER_INITIAL = 0,
66 SERVER_CHALLENGE,
67 SERVER_FINISHED,
68 SERVER_ERROR
69 };
70
71 struct ntlm_auth_state {
72 TALLOC_CTX *mem_ctx;
73 enum stdio_helper_mode helper_mode;
74 enum ntlm_auth_cli_state cli_state;
75 enum ntlm_auth_svr_state svr_state;
76 struct ntlmssp_state *ntlmssp_state;
77 uint32_t neg_flags;
78 char *want_feature_list;
79 bool have_session_key;
80 DATA_BLOB session_key;
81 DATA_BLOB initial_message;
82 };
83
84 typedef void (*stdio_helper_function)(struct ntlm_auth_state *state, char *buf,
85 int length);
86
87 static void manage_squid_basic_request (struct ntlm_auth_state *state,
88 char *buf, int length);
89
90 static void manage_squid_ntlmssp_request (struct ntlm_auth_state *state,
91 char *buf, int length);
92
93 static void manage_client_ntlmssp_request (struct ntlm_auth_state *state,
94 char *buf, int length);
95
96 static void manage_gss_spnego_request (struct ntlm_auth_state *state,
97 char *buf, int length);
98
99 static void manage_gss_spnego_client_request (struct ntlm_auth_state *state,
100 char *buf, int length);
101
102 static void manage_ntlm_server_1_request (struct ntlm_auth_state *state,
103 char *buf, int length);
104
105 static void manage_ntlm_change_password_1_request(struct ntlm_auth_state *state,
106 char *buf, int length);
107
108 static const struct {
109 enum stdio_helper_mode mode;
110 const char *name;
111 stdio_helper_function fn;
112 } stdio_helper_protocols[] = {
113 { SQUID_2_4_BASIC, "squid-2.4-basic", manage_squid_basic_request},
114 { SQUID_2_5_BASIC, "squid-2.5-basic", manage_squid_basic_request},
115 { SQUID_2_5_NTLMSSP, "squid-2.5-ntlmssp", manage_squid_ntlmssp_request},
116 { NTLMSSP_CLIENT_1, "ntlmssp-client-1", manage_client_ntlmssp_request},
117 { GSS_SPNEGO, "gss-spnego", manage_gss_spnego_request},
118 { GSS_SPNEGO_CLIENT, "gss-spnego-client", manage_gss_spnego_client_request},
119 { NTLM_SERVER_1, "ntlm-server-1", manage_ntlm_server_1_request},
120 { NTLM_CHANGE_PASSWORD_1, "ntlm-change-password-1", manage_ntlm_change_password_1_request},
121 { NUM_HELPER_MODES, NULL, NULL}
122 };
123
124 const char *opt_username;
125 const char *opt_domain;
126 const char *opt_workstation;
127 const char *opt_password;
128 static DATA_BLOB opt_challenge;
129 static DATA_BLOB opt_lm_response;
130 static DATA_BLOB opt_nt_response;
131 static int request_lm_key;
132 static int request_user_session_key;
133 static int use_cached_creds;
134
135 static const char *require_membership_of;
136 static const char *require_membership_of_sid;
137 static const char *opt_pam_winbind_conf;
138
139 static char winbind_separator(void)
140 {
141 struct winbindd_response response;
142 static bool got_sep;
143 static char sep;
144
145 if (got_sep)
146 return sep;
147
148 ZERO_STRUCT(response);
149
150 /* Send off request */
151
152 if (winbindd_request_response(WINBINDD_INFO, NULL, &response) !=
153 NSS_STATUS_SUCCESS) {
154 d_printf("could not obtain winbind separator!\n");
155 return *lp_winbind_separator();
156 }
157
158 sep = response.data.info.winbind_separator;
159 got_sep = True;
160
161 if (!sep) {
162 d_printf("winbind separator was NULL!\n");
163 return *lp_winbind_separator();
164 }
165
166 return sep;
167 }
168
169 const char *get_winbind_domain(void)
170 {
171 struct winbindd_response response;
172
173 static fstring winbind_domain;
174 if (*winbind_domain) {
175 return winbind_domain;
176 }
177
178 ZERO_STRUCT(response);
179
180 /* Send off request */
181
182 if (winbindd_request_response(WINBINDD_DOMAIN_NAME, NULL, &response) !=
183 NSS_STATUS_SUCCESS) {
184 DEBUG(0, ("could not obtain winbind domain name!\n"));
185 return lp_workgroup();
186 }
187
188 fstrcpy(winbind_domain, response.data.domain_name);
189
190 return winbind_domain;
191
192 }
193
194 const char *get_winbind_netbios_name(void)
195 {
196 struct winbindd_response response;
197
198 static fstring winbind_netbios_name;
199
200 if (*winbind_netbios_name) {
201 return winbind_netbios_name;
202 }
203
204 ZERO_STRUCT(response);
205
206 /* Send off request */
207
208 if (winbindd_request_response(WINBINDD_NETBIOS_NAME, NULL, &response) !=
209 NSS_STATUS_SUCCESS) {
210 DEBUG(0, ("could not obtain winbind netbios name!\n"));
211 return global_myname();
212 }
213
214 fstrcpy(winbind_netbios_name, response.data.netbios_name);
215
216 return winbind_netbios_name;
217
218 }
219
220 DATA_BLOB get_challenge(void)
221 {
222 static DATA_BLOB chal;
223 if (opt_challenge.length)
224 return opt_challenge;
225
226 chal = data_blob(NULL, 8);
227
228 generate_random_buffer(chal.data, chal.length);
229 return chal;
230 }
231
232 /* Copy of parse_domain_user from winbindd_util.c. Parse a string of the
233 form DOMAIN/user into a domain and a user */
234
235 static bool parse_ntlm_auth_domain_user(const char *domuser, fstring domain,
236 fstring user)
237 {
238
239 char *p = strchr(domuser,winbind_separator());
240
241 if (!p) {
242 return False;
243 }
244
245 fstrcpy(user, p+1);
246 fstrcpy(domain, domuser);
247 domain[PTR_DIFF(p, domuser)] = 0;
248 strupper_m(domain);
249
250 return True;
251 }
252
253 static bool get_require_membership_sid(void) {
254 struct winbindd_request request;
255 struct winbindd_response response;
256
257 if (!require_membership_of) {
258 return True;
259 }
260
261 if (require_membership_of_sid) {
262 return True;
263 }
264
265 /* Otherwise, ask winbindd for the name->sid request */
266
267 ZERO_STRUCT(request);
268 ZERO_STRUCT(response);
269
270 if (!parse_ntlm_auth_domain_user(require_membership_of,
271 request.data.name.dom_name,
272 request.data.name.name)) {
273 DEBUG(0, ("Could not parse %s into seperate domain/name parts!\n",
274 require_membership_of));
275 return False;
276 }
277
278 if (winbindd_request_response(WINBINDD_LOOKUPNAME, &request, &response) !=
279 NSS_STATUS_SUCCESS) {
280 DEBUG(0, ("Winbindd lookupname failed to resolve %s into a SID!\n",
281 require_membership_of));
282 return False;
283 }
284
285 require_membership_of_sid = SMB_STRDUP(response.data.sid.sid);
286
287 if (require_membership_of_sid)
288 return True;
289
290 return False;
291 }
292
293 /*
294 * Get some configuration from pam_winbind.conf to see if we
295 * need to contact trusted domain
296 */
297
298 int get_pam_winbind_config()
299 {
300 int ctrl = 0;
301 dictionary *d = NULL;
302
303 if (!opt_pam_winbind_conf || !*opt_pam_winbind_conf) {
304 opt_pam_winbind_conf = PAM_WINBIND_CONFIG_FILE;
305 }
306
307 d = iniparser_load(CONST_DISCARD(char *, opt_pam_winbind_conf));
308
309 if (!d) {
310 return 0;
311 }
312
313 if (iniparser_getboolean(d, CONST_DISCARD(char *, "global:krb5_auth"), false)) {
314 ctrl |= WINBIND_KRB5_AUTH;
315 }
316
317 iniparser_freedict(d);
318
319 return ctrl;
320 }
321
322 /* Authenticate a user with a plaintext password */
323
324 static bool check_plaintext_auth(const char *user, const char *pass,
325 bool stdout_diagnostics)
326 {
327 struct winbindd_request request;
328 struct winbindd_response response;
329 NSS_STATUS result;
330
331 if (!get_require_membership_sid()) {
332 return False;
333 }
334
335 /* Send off request */
336
337 ZERO_STRUCT(request);
338 ZERO_STRUCT(response);
339
340 fstrcpy(request.data.auth.user, user);
341 fstrcpy(request.data.auth.pass, pass);
342 if (require_membership_of_sid) {
343 strlcpy(request.data.auth.require_membership_of_sid,
344 require_membership_of_sid,
345 sizeof(request.data.auth.require_membership_of_sid));
346 }
347
348 result = winbindd_request_response(WINBINDD_PAM_AUTH, &request, &response);
349
350 /* Display response */
351
352 if (stdout_diagnostics) {
353 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
354 d_printf("Reading winbind reply failed! (0x01)\n");
355 }
356
357 d_printf("%s: %s (0x%x)\n",
358 response.data.auth.nt_status_string,
359 response.data.auth.error_string,
360 response.data.auth.nt_status);
361 } else {
362 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
363 DEBUG(1, ("Reading winbind reply failed! (0x01)\n"));
364 }
365
366 DEBUG(3, ("%s: %s (0x%x)\n",
367 response.data.auth.nt_status_string,
368 response.data.auth.error_string,
369 response.data.auth.nt_status));
370 }
371
372 return (result == NSS_STATUS_SUCCESS);
373 }
374
375 /* authenticate a user with an encrypted username/password */
376
377 NTSTATUS contact_winbind_auth_crap(const char *username,
378 const char *domain,
379 const char *workstation,
380 const DATA_BLOB *challenge,
381 const DATA_BLOB *lm_response,
382 const DATA_BLOB *nt_response,
383 uint32 flags,
384 uint8 lm_key[8],
385 uint8 user_session_key[16],
386 char **error_string,
387 char **unix_name)
388 {
389 NTSTATUS nt_status;
390 NSS_STATUS result;
391 struct winbindd_request request;
392 struct winbindd_response response;
393
394 if (!get_require_membership_sid()) {
395 return NT_STATUS_INVALID_PARAMETER;
396 }
397
398 ZERO_STRUCT(request);
399 ZERO_STRUCT(response);
400
401 request.flags = flags;
402
403 request.data.auth_crap.logon_parameters = MSV1_0_ALLOW_WORKSTATION_TRUST_ACCOUNT | MSV1_0_ALLOW_SERVER_TRUST_ACCOUNT;
404
405 if (require_membership_of_sid)
406 fstrcpy(request.data.auth_crap.require_membership_of_sid, require_membership_of_sid);
407
408 fstrcpy(request.data.auth_crap.user, username);
409 fstrcpy(request.data.auth_crap.domain, domain);
410
411 fstrcpy(request.data.auth_crap.workstation,
412 workstation);
413
414 memcpy(request.data.auth_crap.chal, challenge->data, MIN(challenge->length, 8));
415
416 if (lm_response && lm_response->length) {
417 memcpy(request.data.auth_crap.lm_resp,
418 lm_response->data,
419 MIN(lm_response->length, sizeof(request.data.auth_crap.lm_resp)));
420 request.data.auth_crap.lm_resp_len = lm_response->length;
421 }
422
423 if (nt_response && nt_response->length) {
424 if (nt_response->length > sizeof(request.data.auth_crap.nt_resp)) {
425 request.flags = request.flags | WBFLAG_BIG_NTLMV2_BLOB;
426 request.extra_len = nt_response->length;
427 request.extra_data.data = SMB_MALLOC_ARRAY(char, request.extra_len);
428 if (request.extra_data.data == NULL) {
429 return NT_STATUS_NO_MEMORY;
430 }
431 memcpy(request.extra_data.data, nt_response->data,
432 nt_response->length);
433
434 } else {
435 memcpy(request.data.auth_crap.nt_resp,
436 nt_response->data, nt_response->length);
437 }
438 request.data.auth_crap.nt_resp_len = nt_response->length;
439 }
440
441 result = winbindd_request_response(WINBINDD_PAM_AUTH_CRAP, &request, &response);
442 SAFE_FREE(request.extra_data.data);
443
444 /* Display response */
445
446 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
447 nt_status = NT_STATUS_UNSUCCESSFUL;
448 if (error_string)
449 *error_string = smb_xstrdup("Reading winbind reply failed!");
450 winbindd_free_response(&response);
451 return nt_status;
452 }
453
454 nt_status = (NT_STATUS(response.data.auth.nt_status));
455 if (!NT_STATUS_IS_OK(nt_status)) {
456 if (error_string)
457 *error_string = smb_xstrdup(response.data.auth.error_string);
458 winbindd_free_response(&response);
459 return nt_status;
460 }
461
462 if ((flags & WBFLAG_PAM_LMKEY) && lm_key) {
463 memcpy(lm_key, response.data.auth.first_8_lm_hash,
464 sizeof(response.data.auth.first_8_lm_hash));
465 }
466 if ((flags & WBFLAG_PAM_USER_SESSION_KEY) && user_session_key) {
467 memcpy(user_session_key, response.data.auth.user_session_key,
468 sizeof(response.data.auth.user_session_key));
469 }
470
471 if (flags & WBFLAG_PAM_UNIX_NAME) {
472 *unix_name = SMB_STRDUP(response.data.auth.unix_username);
473 if (!*unix_name) {
474 winbindd_free_response(&response);
475 return NT_STATUS_NO_MEMORY;
476 }
477 }
478
479 winbindd_free_response(&response);
480 return nt_status;
481 }
482
483 /* contact server to change user password using auth crap */
484 static NTSTATUS contact_winbind_change_pswd_auth_crap(const char *username,
485 const char *domain,
486 const DATA_BLOB new_nt_pswd,
487 const DATA_BLOB old_nt_hash_enc,
488 const DATA_BLOB new_lm_pswd,
489 const DATA_BLOB old_lm_hash_enc,
490 char **error_string)
491 {
492 NTSTATUS nt_status;
493 NSS_STATUS result;
494 struct winbindd_request request;
495 struct winbindd_response response;
496
497 if (!get_require_membership_sid())
498 {
499 if(error_string)
500 *error_string = smb_xstrdup("Can't get membership sid.");
501 return NT_STATUS_INVALID_PARAMETER;
502 }
503
504 ZERO_STRUCT(request);
505 ZERO_STRUCT(response);
506
507 if(username != NULL)
508 fstrcpy(request.data.chng_pswd_auth_crap.user, username);
509 if(domain != NULL)
510 fstrcpy(request.data.chng_pswd_auth_crap.domain,domain);
511
512 if(new_nt_pswd.length)
513 {
514 memcpy(request.data.chng_pswd_auth_crap.new_nt_pswd, new_nt_pswd.data, sizeof(request.data.chng_pswd_auth_crap.new_nt_pswd));
515 request.data.chng_pswd_auth_crap.new_nt_pswd_len = new_nt_pswd.length;
516 }
517
518 if(old_nt_hash_enc.length)
519 {
520 memcpy(request.data.chng_pswd_auth_crap.old_nt_hash_enc, old_nt_hash_enc.data, sizeof(request.data.chng_pswd_auth_crap.old_nt_hash_enc));
521 request.data.chng_pswd_auth_crap.old_nt_hash_enc_len = old_nt_hash_enc.length;
522 }
523
524 if(new_lm_pswd.length)
525 {
526 memcpy(request.data.chng_pswd_auth_crap.new_lm_pswd, new_lm_pswd.data, sizeof(request.data.chng_pswd_auth_crap.new_lm_pswd));
527 request.data.chng_pswd_auth_crap.new_lm_pswd_len = new_lm_pswd.length;
528 }
529
530 if(old_lm_hash_enc.length)
531 {
532 memcpy(request.data.chng_pswd_auth_crap.old_lm_hash_enc, old_lm_hash_enc.data, sizeof(request.data.chng_pswd_auth_crap.old_lm_hash_enc));
533 request.data.chng_pswd_auth_crap.old_lm_hash_enc_len = old_lm_hash_enc.length;
534 }
535
536 result = winbindd_request_response(WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP, &request, &response);
537
538 /* Display response */
539
540 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0))
541 {
542 nt_status = NT_STATUS_UNSUCCESSFUL;
543 if (error_string)
544 *error_string = smb_xstrdup("Reading winbind reply failed!");
545 winbindd_free_response(&response);
546 return nt_status;
547 }
548
549 nt_status = (NT_STATUS(response.data.auth.nt_status));
550 if (!NT_STATUS_IS_OK(nt_status))
551 {
552 if (error_string)
553 *error_string = smb_xstrdup(response.data.auth.error_string);
554 winbindd_free_response(&response);
555 return nt_status;
556 }
557
558 winbindd_free_response(&response);
559
560 return nt_status;
561 }
562
563 static NTSTATUS winbind_pw_check(struct ntlmssp_state *ntlmssp_state, DATA_BLOB *user_session_key, DATA_BLOB *lm_session_key)
564 {
565 static const char zeros[16] = { 0, };
566 NTSTATUS nt_status;
567 char *error_string = NULL;
568 uint8 lm_key[8];
569 uint8 user_sess_key[16];
570 char *unix_name = NULL;
571
572 nt_status = contact_winbind_auth_crap(ntlmssp_state->user, ntlmssp_state->domain,
573 ntlmssp_state->workstation,
574 &ntlmssp_state->chal,
575 &ntlmssp_state->lm_resp,
576 &ntlmssp_state->nt_resp,
577 WBFLAG_PAM_LMKEY | WBFLAG_PAM_USER_SESSION_KEY | WBFLAG_PAM_UNIX_NAME,
578 lm_key, user_sess_key,
579 &error_string, &unix_name);
580
581 if (NT_STATUS_IS_OK(nt_status)) {
582 if (memcmp(lm_key, zeros, 8) != 0) {
583 *lm_session_key = data_blob_talloc(ntlmssp_state, NULL, 16);
584 memcpy(lm_session_key->data, lm_key, 8);
585 memset(lm_session_key->data+8, '\0', 8);
586 }
587
588 if (memcmp(user_sess_key, zeros, 16) != 0) {
589 *user_session_key = data_blob_talloc(ntlmssp_state, user_sess_key, 16);
590 }
591 ntlmssp_state->auth_context = talloc_strdup(ntlmssp_state,
592 unix_name);
593 } else {
594 DEBUG(NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED) ? 0 : 3,
595 ("Login for user [%s]\\[%s]@[%s] failed due to [%s]\n",
596 ntlmssp_state->domain, ntlmssp_state->user,
597 ntlmssp_state->workstation,
598 error_string ? error_string : "unknown error (NULL)"));
599 ntlmssp_state->auth_context = NULL;
600 }
601
602 SAFE_FREE(error_string);
603 SAFE_FREE(unix_name);
604 return nt_status;
605 }
606
607 static NTSTATUS local_pw_check(struct ntlmssp_state *ntlmssp_state, DATA_BLOB *user_session_key, DATA_BLOB *lm_session_key)
608 {
609 NTSTATUS nt_status;
610 struct samr_Password lm_pw, nt_pw;
611
612 nt_lm_owf_gen (opt_password, nt_pw.hash, lm_pw.hash);
613
614 nt_status = ntlm_password_check(ntlmssp_state,
615 true, true, 0,
616 &ntlmssp_state->chal,
617 &ntlmssp_state->lm_resp,
618 &ntlmssp_state->nt_resp,
619 ntlmssp_state->user,
620 ntlmssp_state->user,
621 ntlmssp_state->domain,
622 &lm_pw, &nt_pw, user_session_key, lm_session_key);
623
624 if (NT_STATUS_IS_OK(nt_status)) {
625 ntlmssp_state->auth_context = talloc_asprintf(ntlmssp_state,
626 "%s%c%s", ntlmssp_state->domain,
627 *lp_winbind_separator(),
628 ntlmssp_state->user);
629 } else {
630 DEBUG(3, ("Login for user [%s]\\[%s]@[%s] failed due to [%s]\n",
631 ntlmssp_state->domain, ntlmssp_state->user, ntlmssp_state->workstation,
632 nt_errstr(nt_status)));
633 ntlmssp_state->auth_context = NULL;
634 }
635 return nt_status;
636 }
637
638 static NTSTATUS ntlm_auth_start_ntlmssp_client(NTLMSSP_STATE **client_ntlmssp_state)
639 {
640 NTSTATUS status;
641 if ( (opt_username == NULL) || (opt_domain == NULL) ) {
642 status = NT_STATUS_UNSUCCESSFUL;
643 DEBUG(1, ("Need username and domain for NTLMSSP\n"));
644 return NT_STATUS_INVALID_PARAMETER;
645 }
646
647 status = ntlmssp_client_start(client_ntlmssp_state);
648
649 if (!NT_STATUS_IS_OK(status)) {
650 DEBUG(1, ("Could not start NTLMSSP client: %s\n",
651 nt_errstr(status)));
652 ntlmssp_end(client_ntlmssp_state);
653 return status;
654 }
655
656 status = ntlmssp_set_username(*client_ntlmssp_state, opt_username);
657
658 if (!NT_STATUS_IS_OK(status)) {
659 DEBUG(1, ("Could not set username: %s\n",
660 nt_errstr(status)));
661 ntlmssp_end(client_ntlmssp_state);
662 return status;
663 }
664
665 status = ntlmssp_set_domain(*client_ntlmssp_state, opt_domain);
666
667 if (!NT_STATUS_IS_OK(status)) {
668 DEBUG(1, ("Could not set domain: %s\n",
669 nt_errstr(status)));
670 ntlmssp_end(client_ntlmssp_state);
671 return status;
672 }
673
674 if (opt_password) {
675 status = ntlmssp_set_password(*client_ntlmssp_state, opt_password);
676
677 if (!NT_STATUS_IS_OK(status)) {
678 DEBUG(1, ("Could not set password: %s\n",
679 nt_errstr(status)));
680 ntlmssp_end(client_ntlmssp_state);
681 return status;
682 }
683 }
684
685 return NT_STATUS_OK;
686 }
687
688 static NTSTATUS ntlm_auth_start_ntlmssp_server(NTLMSSP_STATE **ntlmssp_state)
689 {
690 NTSTATUS status = ntlmssp_server_start(ntlmssp_state);
691
692 if (!NT_STATUS_IS_OK(status)) {
693 DEBUG(1, ("Could not start NTLMSSP server: %s\n",
694 nt_errstr(status)));
695 return status;
696 }
697
698 /* Have we been given a local password, or should we ask winbind? */
699 if (opt_password) {
700 (*ntlmssp_state)->check_password = local_pw_check;
701 (*ntlmssp_state)->get_domain = lp_workgroup;
702 (*ntlmssp_state)->get_global_myname = global_myname;
703 } else {
704 (*ntlmssp_state)->check_password = winbind_pw_check;
705 (*ntlmssp_state)->get_domain = get_winbind_domain;
706 (*ntlmssp_state)->get_global_myname = get_winbind_netbios_name;
707 }
708 return NT_STATUS_OK;
709 }
710
711 /*******************************************************************
712 Used by firefox to drive NTLM auth to IIS servers.
713 *******************************************************************/
714
715 static NTSTATUS do_ccache_ntlm_auth(DATA_BLOB initial_msg, DATA_BLOB challenge_msg,
716 DATA_BLOB *reply)
717 {
718 struct winbindd_request wb_request;
719 struct winbindd_response wb_response;
720 int ctrl = 0;
721 NSS_STATUS result;
722
723 /* get winbindd to do the ntlmssp step on our behalf */
724 ZERO_STRUCT(wb_request);
725 ZERO_STRUCT(wb_response);
726
727 /*
728 * This is tricky here. If we set krb5_auth in pam_winbind.conf
729 * creds for users in trusted domain will be stored the winbindd
730 * child of the trusted domain. If we ask the primary domain for
731 * ntlm_ccache_auth, it will fail. So, we have to ask the trusted
732 * domain's child for ccache_ntlm_auth. that is to say, we have to
733 * set WBFALG_PAM_CONTACT_TRUSTDOM in request.flags.
734 */
735 ctrl = get_pam_winbind_config();
736
737 if (ctrl | WINBIND_KRB5_AUTH) {
738 wb_request.flags |= WBFLAG_PAM_CONTACT_TRUSTDOM;
739 }
740
741 fstr_sprintf(wb_request.data.ccache_ntlm_auth.user,
742 "%s%c%s", opt_domain, winbind_separator(), opt_username);
743 wb_request.data.ccache_ntlm_auth.uid = geteuid();
744 wb_request.data.ccache_ntlm_auth.initial_blob_len = initial_msg.length;
745 wb_request.data.ccache_ntlm_auth.challenge_blob_len = challenge_msg.length;
746 wb_request.extra_len = initial_msg.length + challenge_msg.length;
747
748 if (wb_request.extra_len > 0) {
749 wb_request.extra_data.data = SMB_MALLOC_ARRAY(char, wb_request.extra_len);
750 if (wb_request.extra_data.data == NULL) {
751 return NT_STATUS_NO_MEMORY;
752 }
753
754 memcpy(wb_request.extra_data.data, initial_msg.data, initial_msg.length);
755 memcpy(wb_request.extra_data.data + initial_msg.length,
756 challenge_msg.data, challenge_msg.length);
757 }
758
759 result = winbindd_request_response(WINBINDD_CCACHE_NTLMAUTH, &wb_request, &wb_response);
760 SAFE_FREE(wb_request.extra_data.data);
761
762 if (result != NSS_STATUS_SUCCESS) {
763 winbindd_free_response(&wb_response);
764 return NT_STATUS_UNSUCCESSFUL;
765 }
766
767 if (reply) {
768 *reply = data_blob(wb_response.extra_data.data,
769 wb_response.data.ccache_ntlm_auth.auth_blob_len);
770 if (wb_response.data.ccache_ntlm_auth.auth_blob_len > 0 &&
771 reply->data == NULL) {
772 winbindd_free_response(&wb_response);
773 return NT_STATUS_NO_MEMORY;
774 }
775 }
776
777 winbindd_free_response(&wb_response);
778 return NT_STATUS_MORE_PROCESSING_REQUIRED;
779 }
780
781 static void manage_squid_ntlmssp_request(struct ntlm_auth_state *state,
782 char *buf, int length)
783 {
784 DATA_BLOB request, reply;
785 NTSTATUS nt_status;
786
787 if (strlen(buf) < 2) {
788 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
789 x_fprintf(x_stdout, "BH NTLMSSP query invalid\n");
790 return;
791 }
792
793 if (strlen(buf) > 3) {
794 if(strncmp(buf, "SF ", 3) == 0){
795 DEBUG(10, ("Setting flags to negotioate\n"));
796 TALLOC_FREE(state->want_feature_list);
797 state->want_feature_list = talloc_strdup(state->mem_ctx,
798 buf+3);
799 x_fprintf(x_stdout, "OK\n");
800 return;
801 }
802 request = base64_decode_data_blob(buf + 3);
803 } else {
804 request = data_blob_null;
805 }
806
807 if ((strncmp(buf, "PW ", 3) == 0)) {
808 /* The calling application wants us to use a local password
809 * (rather than winbindd) */
810
811 opt_password = SMB_STRNDUP((const char *)request.data,
812 request.length);
813
814 if (opt_password == NULL) {
815 DEBUG(1, ("Out of memory\n"));
816 x_fprintf(x_stdout, "BH Out of memory\n");
817 data_blob_free(&request);
818 return;
819 }
820
821 x_fprintf(x_stdout, "OK\n");
822 data_blob_free(&request);
823 return;
824 }
825
826 if (strncmp(buf, "YR", 2) == 0) {
827 if (state->ntlmssp_state)
828 ntlmssp_end(&state->ntlmssp_state);
829 state->svr_state = SERVER_INITIAL;
830 } else if (strncmp(buf, "KK", 2) == 0) {
831 /* No special preprocessing required */
832 } else if (strncmp(buf, "GF", 2) == 0) {
833 DEBUG(10, ("Requested negotiated NTLMSSP flags\n"));
834
835 if (state->svr_state == SERVER_FINISHED) {
836 x_fprintf(x_stdout, "GF 0x%08x\n", state->neg_flags);
837 }
838 else {
839 x_fprintf(x_stdout, "BH\n");
840 }
841 data_blob_free(&request);
842 return;
843 } else if (strncmp(buf, "GK", 2) == 0) {
844 DEBUG(10, ("Requested NTLMSSP session key\n"));
845 if(state->have_session_key) {
846 char *key64 = base64_encode_data_blob(state->mem_ctx,
847 state->session_key);
848 x_fprintf(x_stdout, "GK %s\n", key64?key64:"<NULL>");
849 TALLOC_FREE(key64);
850 } else {
851 x_fprintf(x_stdout, "BH\n");
852 }
853
854 data_blob_free(&request);
855 return;
856 } else {
857 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
858 x_fprintf(x_stdout, "BH NTLMSSP query invalid\n");
859 return;
860 }
861
862 if (!state->ntlmssp_state) {
863 nt_status = ntlm_auth_start_ntlmssp_server(
864 &state->ntlmssp_state);
865 if (!NT_STATUS_IS_OK(nt_status)) {
866 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
867 return;
868 }
869 ntlmssp_want_feature_list(state->ntlmssp_state,
870 state->want_feature_list);
871 }
872
873 DEBUG(10, ("got NTLMSSP packet:\n"));
874 dump_data(10, request.data, request.length);
875
876 nt_status = ntlmssp_update(state->ntlmssp_state, request, &reply);
877
878 if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
879 char *reply_base64 = base64_encode_data_blob(state->mem_ctx,
880 reply);
881 x_fprintf(x_stdout, "TT %s\n", reply_base64);
882 TALLOC_FREE(reply_base64);
883 data_blob_free(&reply);
884 state->svr_state = SERVER_CHALLENGE;
885 DEBUG(10, ("NTLMSSP challenge\n"));
886 } else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED)) {
887 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
888 DEBUG(0, ("NTLMSSP BH: %s\n", nt_errstr(nt_status)));
889
890 ntlmssp_end(&state->ntlmssp_state);
891 } else if (!NT_STATUS_IS_OK(nt_status)) {
892 x_fprintf(x_stdout, "NA %s\n", nt_errstr(nt_status));
893 DEBUG(10, ("NTLMSSP %s\n", nt_errstr(nt_status)));
894 } else {
895 x_fprintf(x_stdout, "AF %s\n",
896 (char *)state->ntlmssp_state->auth_context);
897 DEBUG(10, ("NTLMSSP OK!\n"));
898
899 if(state->have_session_key)
900 data_blob_free(&state->session_key);
901 state->session_key = data_blob(
902 state->ntlmssp_state->session_key.data,
903 state->ntlmssp_state->session_key.length);
904 state->neg_flags = state->ntlmssp_state->neg_flags;
905 state->have_session_key = true;
906 state->svr_state = SERVER_FINISHED;
907 }
908
909 data_blob_free(&request);
910 }
911
912 static void manage_client_ntlmssp_request(struct ntlm_auth_state *state,
913 char *buf, int length)
914 {
915 DATA_BLOB request, reply;
916 NTSTATUS nt_status;
917
918 if (!opt_username || !*opt_username) {
919 x_fprintf(x_stderr, "username must be specified!\n\n");
920 exit(1);
921 }
922
923 if (strlen(buf) < 2) {
924 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
925 x_fprintf(x_stdout, "BH NTLMSSP query invalid\n");
926 return;
927 }
928
929 if (strlen(buf) > 3) {
930 if(strncmp(buf, "SF ", 3) == 0) {
931 DEBUG(10, ("Looking for flags to negotiate\n"));
932 talloc_free(state->want_feature_list);
933 state->want_feature_list = talloc_strdup(state->mem_ctx,
934 buf+3);
935 x_fprintf(x_stdout, "OK\n");
936 return;
937 }
938 request = base64_decode_data_blob(buf + 3);
939 } else {
940 request = data_blob_null;
941 }
942
943 if (strncmp(buf, "PW ", 3) == 0) {
944 /* We asked for a password and obviously got it :-) */
945
946 opt_password = SMB_STRNDUP((const char *)request.data,
947 request.length);
948
949 if (opt_password == NULL) {
950 DEBUG(1, ("Out of memory\n"));
951 x_fprintf(x_stdout, "BH Out of memory\n");
952 data_blob_free(&request);
953 return;
954 }
955
956 x_fprintf(x_stdout, "OK\n");
957 data_blob_free(&request);
958 return;
959 }
960
961 if (!state->ntlmssp_state && use_cached_creds) {
962 /* check whether cached credentials are usable. */
963 DATA_BLOB empty_blob = data_blob_null;
964
965 nt_status = do_ccache_ntlm_auth(empty_blob, empty_blob, NULL);
966 if (!NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
967 /* failed to use cached creds */
968 use_cached_creds = False;
969 }
970 }
971
972 if (opt_password == NULL && !use_cached_creds) {
973 /* Request a password from the calling process. After
974 sending it, the calling process should retry asking for the
975 negotiate. */
976
977 DEBUG(10, ("Requesting password\n"));
978 x_fprintf(x_stdout, "PW\n");
979 return;
980 }
981
982 if (strncmp(buf, "YR", 2) == 0) {
983 if (state->ntlmssp_state)
984 ntlmssp_end(&state->ntlmssp_state);
985 state->cli_state = CLIENT_INITIAL;
986 } else if (strncmp(buf, "TT", 2) == 0) {
987 /* No special preprocessing required */
988 } else if (strncmp(buf, "GF", 2) == 0) {
989 DEBUG(10, ("Requested negotiated NTLMSSP flags\n"));
990
991 if(state->cli_state == CLIENT_FINISHED) {
992 x_fprintf(x_stdout, "GF 0x%08x\n", state->neg_flags);
993 }
994 else {
995 x_fprintf(x_stdout, "BH\n");
996 }
997
998 data_blob_free(&request);
999 return;
1000 } else if (strncmp(buf, "GK", 2) == 0 ) {
1001 DEBUG(10, ("Requested session key\n"));
1002
1003 if(state->cli_state == CLIENT_FINISHED) {
1004 char *key64 = base64_encode_data_blob(state->mem_ctx,
1005 state->session_key);
1006 x_fprintf(x_stdout, "GK %s\n", key64?key64:"<NULL>");
1007 TALLOC_FREE(key64);
1008 }
1009 else {
1010 x_fprintf(x_stdout, "BH\n");
1011 }
1012
1013 data_blob_free(&request);
1014 return;
1015 } else {
1016 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
1017 x_fprintf(x_stdout, "BH NTLMSSP query invalid\n");
1018 return;
1019 }
1020
1021 if (!state->ntlmssp_state) {
1022 nt_status = ntlm_auth_start_ntlmssp_client(
1023 &state->ntlmssp_state);
1024 if (!NT_STATUS_IS_OK(nt_status)) {
1025 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
1026 return;
1027 }
1028 ntlmssp_want_feature_list(state->ntlmssp_state,
1029 state->want_feature_list);
1030 state->initial_message = data_blob_null;
1031 }
1032
1033 DEBUG(10, ("got NTLMSSP packet:\n"));
1034 dump_data(10, request.data, request.length);
1035
1036 if (use_cached_creds && !opt_password &&
1037 (state->cli_state == CLIENT_RESPONSE)) {
1038 nt_status = do_ccache_ntlm_auth(state->initial_message, request,
1039 &reply);
1040 } else {
1041 nt_status = ntlmssp_update(state->ntlmssp_state, request,
1042 &reply);
1043 }
1044
1045 if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1046 char *reply_base64 = base64_encode_data_blob(state->mem_ctx,
1047 reply);
1048 if (state->cli_state == CLIENT_INITIAL) {
1049 x_fprintf(x_stdout, "YR %s\n", reply_base64);
1050 state->initial_message = reply;
1051 state->cli_state = CLIENT_RESPONSE;
1052 } else {
1053 x_fprintf(x_stdout, "KK %s\n", reply_base64);
1054 data_blob_free(&reply);
1055 }
1056 TALLOC_FREE(reply_base64);
1057 DEBUG(10, ("NTLMSSP challenge\n"));
1058 } else if (NT_STATUS_IS_OK(nt_status)) {
1059 char *reply_base64 = base64_encode_data_blob(talloc_tos(),
1060 reply);
1061 x_fprintf(x_stdout, "AF %s\n", reply_base64);
1062 TALLOC_FREE(reply_base64);
1063
1064 if(state->have_session_key)
1065 data_blob_free(&state->session_key);
1066
1067 state->session_key = data_blob(
1068 state->ntlmssp_state->session_key.data,
1069 state->ntlmssp_state->session_key.length);
1070 state->neg_flags = state->ntlmssp_state->neg_flags;
1071 state->have_session_key = true;
1072
1073 DEBUG(10, ("NTLMSSP OK!\n"));
1074 state->cli_state = CLIENT_FINISHED;
1075 if (state->ntlmssp_state)
1076 ntlmssp_end(&state->ntlmssp_state);
1077 } else {
1078 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
1079 DEBUG(0, ("NTLMSSP BH: %s\n", nt_errstr(nt_status)));
1080 state->cli_state = CLIENT_ERROR;
1081 if (state->ntlmssp_state)
1082 ntlmssp_end(&state->ntlmssp_state);
1083 }
1084
1085 data_blob_free(&request);
1086 }
1087
1088 static void manage_squid_basic_request(struct ntlm_auth_state *state,
1089 char *buf, int length)
1090 {
1091 char *user, *pass;
1092 user=buf;
1093
1094 pass=(char *)memchr(buf,' ',length);
1095 if (!pass) {
1096 DEBUG(2, ("Password not found. Denying access\n"));
1097 x_fprintf(x_stdout, "ERR\n");
1098 return;
1099 }
1100 *pass='\0';
1101 pass++;
1102
1103 if (state->helper_mode == SQUID_2_5_BASIC) {
1104 rfc1738_unescape(user);
1105 rfc1738_unescape(pass);
1106 }
1107
1108 if (check_plaintext_auth(user, pass, False)) {
1109 x_fprintf(x_stdout, "OK\n");
1110 } else {
1111 x_fprintf(x_stdout, "ERR\n");
1112 }
1113 }
1114
1115 static void offer_gss_spnego_mechs(void) {
1116
1117 DATA_BLOB token;
1118 struct spnego_data spnego;
1119 ssize_t len;
1120 char *reply_base64;
1121 TALLOC_CTX *ctx = talloc_tos();
1122 char *principal;
1123 char *myname_lower;
1124
1125 ZERO_STRUCT(spnego);
1126
1127 myname_lower = talloc_strdup(ctx, global_myname());
1128 if (!myname_lower) {
1129 return;
1130 }
1131 strlower_m(myname_lower);
1132
1133 principal = talloc_asprintf(ctx, "%s$@%s", myname_lower, lp_realm());
1134 if (!principal) {
1135 return;
1136 }
1137
1138 /* Server negTokenInit (mech offerings) */
1139 spnego.type = SPNEGO_NEG_TOKEN_INIT;
1140 spnego.negTokenInit.mechTypes = talloc_array(ctx, const char *, 2);
1141 #ifdef HAVE_KRB5
1142 spnego.negTokenInit.mechTypes[0] = talloc_strdup(ctx, OID_KERBEROS5_OLD);
1143 spnego.negTokenInit.mechTypes[1] = talloc_strdup(ctx, OID_NTLMSSP);
1144 spnego.negTokenInit.mechTypes[2] = NULL;
1145 #else
1146 spnego.negTokenInit.mechTypes[0] = talloc_strdup(ctx, OID_NTLMSSP);
1147 spnego.negTokenInit.mechTypes[1] = NULL;
1148 #endif
1149
1150
1151 spnego.negTokenInit.mechListMIC = data_blob_talloc(ctx, principal,
1152 strlen(principal));
1153
1154 len = spnego_write_data(ctx, &token, &spnego);
1155 spnego_free_data(&spnego);
1156
1157 if (len == -1) {
1158 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1159 x_fprintf(x_stdout, "BH Could not write SPNEGO data blob\n");
1160 return;
1161 }
1162
1163 reply_base64 = base64_encode_data_blob(talloc_tos(), token);
1164 x_fprintf(x_stdout, "TT %s *\n", reply_base64);
1165
1166 TALLOC_FREE(reply_base64);
1167 data_blob_free(&token);
1168 DEBUG(10, ("sent SPNEGO negTokenInit\n"));
1169 return;
1170 }
1171
1172 static void manage_gss_spnego_request(struct ntlm_auth_state *state,
1173 char *buf, int length)
1174 {
1175 static NTLMSSP_STATE *ntlmssp_state = NULL;
1176 struct spnego_data request, response;
1177 DATA_BLOB token;
1178 NTSTATUS status;
1179 ssize_t len;
1180 TALLOC_CTX *ctx = talloc_tos();
1181
1182 char *user = NULL;
1183 char *domain = NULL;
1184
1185 const char *reply_code;
1186 char *reply_base64;
1187 char *reply_argument = NULL;
1188
1189 if (strlen(buf) < 2) {
1190 DEBUG(1, ("SPENGO query [%s] invalid", buf));
1191 x_fprintf(x_stdout, "BH SPENGO query invalid\n");
1192 return;
1193 }
1194
1195 if (strncmp(buf, "YR", 2) == 0) {
1196 if (ntlmssp_state)
1197 ntlmssp_end(&ntlmssp_state);
1198 } else if (strncmp(buf, "KK", 2) == 0) {
1199 ;
1200 } else {
1201 DEBUG(1, ("SPENGO query [%s] invalid", buf));
1202 x_fprintf(x_stdout, "BH SPENGO query invalid\n");
1203 return;
1204 }
1205
1206 if ( (strlen(buf) == 2)) {
1207
1208 /* no client data, get the negTokenInit offering
1209 mechanisms */
1210
1211 offer_gss_spnego_mechs();
1212 return;
1213 }
1214
1215 /* All subsequent requests have a blob. This might be negTokenInit or negTokenTarg */
1216
1217 if (strlen(buf) <= 3) {
1218 DEBUG(1, ("GSS-SPNEGO query [%s] invalid\n", buf));
1219 x_fprintf(x_stdout, "BH GSS-SPNEGO query invalid\n");
1220 return;
1221 }
1222
1223 token = base64_decode_data_blob(buf + 3);
1224 len = spnego_read_data(ctx, token, &request);
1225 data_blob_free(&token);
1226
1227 if (len == -1) {
1228 DEBUG(1, ("GSS-SPNEGO query [%s] invalid", buf));
1229 x_fprintf(x_stdout, "BH GSS-SPNEGO query invalid\n");
1230 return;
1231 }
1232
1233 if (request.type == SPNEGO_NEG_TOKEN_INIT) {
1234
1235 /* Second request from Client. This is where the
1236 client offers its mechanism to use. */
1237
1238 if ( (request.negTokenInit.mechTypes == NULL) ||
1239 (request.negTokenInit.mechTypes[0] == NULL) ) {
1240 DEBUG(1, ("Client did not offer any mechanism"));
1241 x_fprintf(x_stdout, "BH Client did not offer any "
1242 "mechanism\n");
1243 return;
1244 }
1245
1246 status = NT_STATUS_UNSUCCESSFUL;
1247 if (strcmp(request.negTokenInit.mechTypes[0], OID_NTLMSSP) == 0) {
1248
1249 if ( request.negTokenInit.mechToken.data == NULL ) {
1250 DEBUG(1, ("Client did not provide NTLMSSP data\n"));
1251 x_fprintf(x_stdout, "BH Client did not provide "
1252 "NTLMSSP data\n");
1253 return;
1254 }
1255
1256 if ( ntlmssp_state != NULL ) {
1257 DEBUG(1, ("Client wants a new NTLMSSP challenge, but "
1258 "already got one\n"));
1259 x_fprintf(x_stdout, "BH Client wants a new "
1260 "NTLMSSP challenge, but "
1261 "already got one\n");
1262 ntlmssp_end(&ntlmssp_state);
1263 return;
1264 }
1265
1266 if (!NT_STATUS_IS_OK(status = ntlm_auth_start_ntlmssp_server(&ntlmssp_state))) {
1267 x_fprintf(x_stdout, "BH %s\n", nt_errstr(status));
1268 return;
1269 }
1270
1271 DEBUG(10, ("got NTLMSSP packet:\n"));
1272 dump_data(10, request.negTokenInit.mechToken.data,
1273 request.negTokenInit.mechToken.length);
1274
1275 response.type = SPNEGO_NEG_TOKEN_TARG;
1276 response.negTokenTarg.supportedMech = talloc_strdup(ctx, OID_NTLMSSP);
1277 response.negTokenTarg.mechListMIC = data_blob_talloc(ctx, NULL, 0);
1278
1279 status = ntlmssp_update(ntlmssp_state,
1280 request.negTokenInit.mechToken,
1281 &response.negTokenTarg.responseToken);
1282 }
1283
1284 #ifdef HAVE_KRB5
1285 if (strcmp(request.negTokenInit.mechTypes[0], OID_KERBEROS5_OLD) == 0) {
1286
1287 TALLOC_CTX *mem_ctx = talloc_init("manage_gss_spnego_request");
1288 char *principal;
1289 DATA_BLOB ap_rep;
1290 DATA_BLOB session_key;
1291 struct PAC_DATA *pac_data = NULL;
1292
1293 if ( request.negTokenInit.mechToken.data == NULL ) {
1294 DEBUG(1, ("Client did not provide Kerberos data\n"));
1295 x_fprintf(x_stdout, "BH Client did not provide "
1296 "Kerberos data\n");
1297 return;
1298 }
1299
1300 response.type = SPNEGO_NEG_TOKEN_TARG;
1301 response.negTokenTarg.supportedMech = talloc_strdup(ctx, OID_KERBEROS5_OLD);
1302 response.negTokenTarg.mechListMIC = data_blob_talloc(ctx, NULL, 0);
1303 response.negTokenTarg.responseToken = data_blob_talloc(ctx, NULL, 0);
1304
1305 status = ads_verify_ticket(mem_ctx, lp_realm(), 0,
1306 &request.negTokenInit.mechToken,
1307 &principal, &pac_data, &ap_rep,
1308 &session_key, True);
1309
1310 /* Now in "principal" we have the name we are
1311 authenticated as. */
1312
1313 if (NT_STATUS_IS_OK(status)) {
1314
1315 domain = strchr_m(principal, '@');
1316
1317 if (domain == NULL) {
1318 DEBUG(1, ("Did not get a valid principal "
1319 "from ads_verify_ticket\n"));
1320 x_fprintf(x_stdout, "BH Did not get a "
1321 "valid principal from "
1322 "ads_verify_ticket\n");
1323 return;
1324 }
1325
1326 *domain++ = '\0';
1327 domain = SMB_STRDUP(domain);
1328 user = SMB_STRDUP(principal);
1329
1330 data_blob_free(&ap_rep);
1331 }
1332
1333 TALLOC_FREE(mem_ctx);
1334 }
1335 #endif
1336
1337 } else {
1338
1339 if ( (request.negTokenTarg.supportedMech == NULL) ||
1340 ( strcmp(request.negTokenTarg.supportedMech, OID_NTLMSSP) != 0 ) ) {
1341 /* Kerberos should never send a negTokenTarg, OID_NTLMSSP
1342 is the only one we support that sends this stuff */
1343 DEBUG(1, ("Got a negTokenTarg for something non-NTLMSSP: %s\n",
1344 request.negTokenTarg.supportedMech));
1345 x_fprintf(x_stdout, "BH Got a negTokenTarg for "
1346 "something non-NTLMSSP\n");
1347 return;
1348 }
1349
1350 if (request.negTokenTarg.responseToken.data == NULL) {
1351 DEBUG(1, ("Got a negTokenTarg without a responseToken!\n"));
1352 x_fprintf(x_stdout, "BH Got a negTokenTarg without a "
1353 "responseToken!\n");
1354 return;
1355 }
1356
1357 status = ntlmssp_update(ntlmssp_state,
1358 request.negTokenTarg.responseToken,
1359 &response.negTokenTarg.responseToken);
1360
1361 response.type = SPNEGO_NEG_TOKEN_TARG;
1362 response.negTokenTarg.supportedMech = talloc_strdup(ctx, OID_NTLMSSP);
1363 response.negTokenTarg.mechListMIC = data_blob_talloc(ctx, NULL, 0);
1364
1365 if (NT_STATUS_IS_OK(status)) {
1366 user = SMB_STRDUP(ntlmssp_state->user);
1367 domain = SMB_STRDUP(ntlmssp_state->domain);
1368 ntlmssp_end(&ntlmssp_state);
1369 }
1370 }
1371
1372 spnego_free_data(&request);
1373
1374 if (NT_STATUS_IS_OK(status)) {
1375 response.negTokenTarg.negResult = SPNEGO_ACCEPT_COMPLETED;
1376 reply_code = "AF";
1377 reply_argument = talloc_asprintf(ctx, "%s\\%s", domain, user);
1378 } else if (NT_STATUS_EQUAL(status,
1379 NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1380 response.negTokenTarg.negResult = SPNEGO_ACCEPT_INCOMPLETE;
1381 reply_code = "TT";
1382 reply_argument = talloc_strdup(ctx, "*");
1383 } else {
1384 response.negTokenTarg.negResult = SPNEGO_REJECT;
1385 reply_code = "NA";
1386 reply_argument = talloc_strdup(ctx, nt_errstr(status));
1387 }
1388
1389 if (!reply_argument) {
1390 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1391 x_fprintf(x_stdout, "BH Could not write SPNEGO data blob\n");
1392 return;
1393 }
1394
1395 SAFE_FREE(user);
1396 SAFE_FREE(domain);
1397
1398 len = spnego_write_data(ctx, &token, &response);
1399 spnego_free_data(&response);
1400
1401 if (len == -1) {
1402 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1403 x_fprintf(x_stdout, "BH Could not write SPNEGO data blob\n");
1404 return;
1405 }
1406
1407 reply_base64 = base64_encode_data_blob(talloc_tos(), token);
1408
1409 x_fprintf(x_stdout, "%s %s %s\n",
1410 reply_code, reply_base64, reply_argument);
1411
1412 TALLOC_FREE(reply_base64);
1413 data_blob_free(&token);
1414
1415 return;
1416 }
1417
1418 static NTLMSSP_STATE *client_ntlmssp_state = NULL;
1419
1420 static bool manage_client_ntlmssp_init(struct spnego_data spnego)
1421 {
1422 NTSTATUS status;
1423 DATA_BLOB null_blob = data_blob_null;
1424 DATA_BLOB to_server;
1425 char *to_server_base64;
1426 const char *my_mechs[] = {OID_NTLMSSP, NULL};
1427 TALLOC_CTX *ctx = talloc_tos();
1428
1429 DEBUG(10, ("Got spnego negTokenInit with NTLMSSP\n"));
1430
1431 if (client_ntlmssp_state != NULL) {
1432 DEBUG(1, ("Request for initial SPNEGO request where "
1433 "we already have a state\n"));
1434 return False;
1435 }
1436
1437 if (!client_ntlmssp_state) {
1438 if (!NT_STATUS_IS_OK(status = ntlm_auth_start_ntlmssp_client(&client_ntlmssp_state))) {
1439 x_fprintf(x_stdout, "BH %s\n", nt_errstr(status));
1440 return False;
1441 }
1442 }
1443
1444
1445 if (opt_password == NULL) {
1446
1447 /* Request a password from the calling process. After
1448 sending it, the calling process should retry with
1449 the negTokenInit. */
1450
1451 DEBUG(10, ("Requesting password\n"));
1452 x_fprintf(x_stdout, "PW\n");
1453 return True;
1454 }
1455
1456 spnego.type = SPNEGO_NEG_TOKEN_INIT;
1457 spnego.negTokenInit.mechTypes = my_mechs;
1458 spnego.negTokenInit.reqFlags = data_blob_null;
1459 spnego.negTokenInit.reqFlagsPadding = 0;
1460 spnego.negTokenInit.mechListMIC = null_blob;
1461
1462 status = ntlmssp_update(client_ntlmssp_state, null_blob,
1463 &spnego.negTokenInit.mechToken);
1464
1465 if ( !(NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED) ||
1466 NT_STATUS_IS_OK(status)) ) {
1467 DEBUG(1, ("Expected OK or MORE_PROCESSING_REQUIRED, got: %s\n",
1468 nt_errstr(status)));
1469 ntlmssp_end(&client_ntlmssp_state);
1470 return False;
1471 }
1472
1473 spnego_write_data(ctx, &to_server, &spnego);
1474 data_blob_free(&spnego.negTokenInit.mechToken);
1475
1476 to_server_base64 = base64_encode_data_blob(talloc_tos(), to_server);
1477 data_blob_free(&to_server);
1478 x_fprintf(x_stdout, "KK %s\n", to_server_base64);
1479 TALLOC_FREE(to_server_base64);
1480 return True;
1481 }
1482
1483 static void manage_client_ntlmssp_targ(struct spnego_data spnego)
1484 {
1485 NTSTATUS status;
1486 DATA_BLOB null_blob = data_blob_null;
1487 DATA_BLOB request;
1488 DATA_BLOB to_server;
1489 char *to_server_base64;
1490 TALLOC_CTX *ctx = talloc_tos();
1491
1492 DEBUG(10, ("Got spnego negTokenTarg with NTLMSSP\n"));
1493
1494 if (client_ntlmssp_state == NULL) {
1495 DEBUG(1, ("Got NTLMSSP tArg without a client state\n"));
1496 x_fprintf(x_stdout, "BH Got NTLMSSP tArg without a client state\n");
1497 return;
1498 }
1499
1500 if (spnego.negTokenTarg.negResult == SPNEGO_REJECT) {
1501 x_fprintf(x_stdout, "NA\n");
1502 ntlmssp_end(&client_ntlmssp_state);
1503 return;
1504 }
1505
1506 if (spnego.negTokenTarg.negResult == SPNEGO_ACCEPT_COMPLETED) {
1507 x_fprintf(x_stdout, "AF\n");
1508 ntlmssp_end(&client_ntlmssp_state);
1509 return;
1510 }
1511
1512 status = ntlmssp_update(client_ntlmssp_state,
1513 spnego.negTokenTarg.responseToken,
1514 &request);
1515
1516 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1517 DEBUG(1, ("Expected MORE_PROCESSING_REQUIRED from "
1518 "ntlmssp_client_update, got: %s\n",
1519 nt_errstr(status)));
1520 x_fprintf(x_stdout, "BH Expected MORE_PROCESSING_REQUIRED from "
1521 "ntlmssp_client_update\n");
1522 data_blob_free(&request);
1523 ntlmssp_end(&client_ntlmssp_state);
1524 return;
1525 }
1526
1527 spnego.type = SPNEGO_NEG_TOKEN_TARG;
1528 spnego.negTokenTarg.negResult = SPNEGO_ACCEPT_INCOMPLETE;
1529 spnego.negTokenTarg.supportedMech = (char *)OID_NTLMSSP;
1530 spnego.negTokenTarg.responseToken = request;
1531 spnego.negTokenTarg.mechListMIC = null_blob;
1532
1533 spnego_write_data(ctx, &to_server, &spnego);
1534 data_blob_free(&request);
1535
1536 to_server_base64 = base64_encode_data_blob(talloc_tos(), to_server);
1537 data_blob_free(&to_server);
1538 x_fprintf(x_stdout, "KK %s\n", to_server_base64);
1539 TALLOC_FREE(to_server_base64);
1540 return;
1541 }
1542
1543 #ifdef HAVE_KRB5
1544
1545 static bool manage_client_krb5_init(struct spnego_data spnego)
1546 {
1547 char *principal;
1548 DATA_BLOB tkt, to_server;
1549 DATA_BLOB session_key_krb5 = data_blob_null;
1550 struct spnego_data reply;
1551 char *reply_base64;
1552 int retval;
1553
1554 const char *my_mechs[] = {OID_KERBEROS5_OLD, NULL};
1555 ssize_t len;
1556 TALLOC_CTX *ctx = talloc_tos();
1557
1558 if ( (spnego.negTokenInit.mechListMIC.data == NULL) ||
1559 (spnego.negTokenInit.mechListMIC.length == 0) ) {
1560 DEBUG(1, ("Did not get a principal for krb5\n"));
1561 return False;
1562 }
1563
1564 principal = (char *)SMB_MALLOC(
1565 spnego.negTokenInit.mechListMIC.length+1);
1566
1567 if (principal == NULL) {
1568 DEBUG(1, ("Could not malloc principal\n"));
1569 return False;
1570 }
1571
1572 memcpy(principal, spnego.negTokenInit.mechListMIC.data,
1573 spnego.negTokenInit.mechListMIC.length);
1574 principal[spnego.negTokenInit.mechListMIC.length] = '\0';
1575
1576 retval = cli_krb5_get_ticket(principal, 0, &tkt, &session_key_krb5, 0, NULL, NULL, NULL);
1577
1578 if (retval) {
1579 char *user = NULL;
1580
1581 /* Let's try to first get the TGT, for that we need a
1582 password. */
1583
1584 if (opt_password == NULL) {
1585 DEBUG(10, ("Requesting password\n"));
1586 x_fprintf(x_stdout, "PW\n");
1587 return True;
1588 }
1589
1590 user = talloc_asprintf(talloc_tos(), "%s@%s", opt_username, opt_domain);
1591 if (!user) {
1592 return false;
1593 }
1594
1595 if ((retval = kerberos_kinit_password(user, opt_password, 0, NULL))) {
1596 DEBUG(10, ("Requesting TGT failed: %s\n", error_message(retval)));
1597 return False;
1598 }
1599
1600 retval = cli_krb5_get_ticket(principal, 0, &tkt, &session_key_krb5, 0, NULL, NULL, NULL);
1601
1602 if (retval) {
1603 DEBUG(10, ("Kinit suceeded, but getting a ticket failed: %s\n", error_message(retval)));
1604 return False;
1605 }
1606 }
1607
1608 data_blob_free(&session_key_krb5);
1609
1610 ZERO_STRUCT(reply);
1611
1612 reply.type = SPNEGO_NEG_TOKEN_INIT;
1613 reply.negTokenInit.mechTypes = my_mechs;
1614 reply.negTokenInit.reqFlags = data_blob_null;
1615 reply.negTokenInit.reqFlagsPadding = 0;
1616 reply.negTokenInit.mechToken = tkt;
1617 reply.negTokenInit.mechListMIC = data_blob_null;
1618
1619 len = spnego_write_data(ctx, &to_server, &reply);
1620 data_blob_free(&tkt);
1621
1622 if (len == -1) {
1623 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1624 return False;
1625 }
1626
1627 reply_base64 = base64_encode_data_blob(talloc_tos(), to_server);
1628 x_fprintf(x_stdout, "KK %s *\n", reply_base64);
1629
1630 TALLOC_FREE(reply_base64);
1631 data_blob_free(&to_server);
1632 DEBUG(10, ("sent GSS-SPNEGO KERBEROS5 negTokenInit\n"));
1633 return True;
1634 }
1635
1636 static void manage_client_krb5_targ(struct spnego_data spnego)
1637 {
1638 switch (spnego.negTokenTarg.negResult) {
1639 case SPNEGO_ACCEPT_INCOMPLETE:
1640 DEBUG(1, ("Got a Kerberos negTokenTarg with ACCEPT_INCOMPLETE\n"));
1641 x_fprintf(x_stdout, "BH Got a Kerberos negTokenTarg with "
1642 "ACCEPT_INCOMPLETE\n");
1643 break;
1644 case SPNEGO_ACCEPT_COMPLETED:
1645 DEBUG(10, ("Accept completed\n"));
1646 x_fprintf(x_stdout, "AF\n");
1647 break;
1648 case SPNEGO_REJECT:
1649 DEBUG(10, ("Rejected\n"));
1650 x_fprintf(x_stdout, "NA\n");
1651 break;
1652 default:
1653 DEBUG(1, ("Got an invalid negTokenTarg\n"));
1654 x_fprintf(x_stdout, "AF\n");
1655 }
1656 }
1657
1658 #endif
1659
1660 static void manage_gss_spnego_client_request(struct ntlm_auth_state *state,
1661 char *buf, int length)
1662 {
1663 DATA_BLOB request;
1664 struct spnego_data spnego;
1665 ssize_t len;
1666 TALLOC_CTX *ctx = talloc_tos();
1667
1668 if (!opt_username || !*opt_username) {
1669 x_fprintf(x_stderr, "username must be specified!\n\n");
1670 exit(1);
1671 }
1672
1673 if (strlen(buf) <= 3) {
1674 DEBUG(1, ("SPNEGO query [%s] too short\n", buf));
1675 x_fprintf(x_stdout, "BH SPNEGO query too short\n");
1676 return;
1677 }
1678
1679 request = base64_decode_data_blob(buf+3);
1680
1681 if (strncmp(buf, "PW ", 3) == 0) {
1682
1683 /* We asked for a password and obviously got it :-) */
1684
1685 opt_password = SMB_STRNDUP((const char *)request.data, request.length);
1686
1687 if (opt_password == NULL) {
1688 DEBUG(1, ("Out of memory\n"));
1689 x_fprintf(x_stdout, "BH Out of memory\n");
1690 data_blob_free(&request);
1691 return;
1692 }
1693
1694 x_fprintf(x_stdout, "OK\n");
1695 data_blob_free(&request);
1696 return;
1697 }
1698
1699 if ( (strncmp(buf, "TT ", 3) != 0) &&
1700 (strncmp(buf, "AF ", 3) != 0) &&
1701 (strncmp(buf, "NA ", 3) != 0) ) {
1702 DEBUG(1, ("SPNEGO request [%s] invalid\n", buf));
1703 x_fprintf(x_stdout, "BH SPNEGO request invalid\n");
1704 data_blob_free(&request);
1705 return;
1706 }
1707
1708 /* So we got a server challenge to generate a SPNEGO
1709 client-to-server request... */
1710
1711 len = spnego_read_data(ctx, request, &spnego);
1712 data_blob_free(&request);
1713
1714 if (len == -1) {
1715 DEBUG(1, ("Could not read SPNEGO data for [%s]\n", buf));
1716 x_fprintf(x_stdout, "BH Could not read SPNEGO data\n");
1717 return;
1718 }
1719
1720 if (spnego.type == SPNEGO_NEG_TOKEN_INIT) {
1721
1722 /* The server offers a list of mechanisms */
1723
1724 const char **mechType = (const char **)spnego.negTokenInit.mechTypes;
1725
1726 while (*mechType != NULL) {
1727
1728 #ifdef HAVE_KRB5
1729 if ( (strcmp(*mechType, OID_KERBEROS5_OLD) == 0) ||
1730 (strcmp(*mechType, OID_KERBEROS5) == 0) ) {
1731 if (manage_client_krb5_init(spnego))
1732 goto out;
1733 }
1734 #endif
1735
1736 if (strcmp(*mechType, OID_NTLMSSP) == 0) {
1737 if (manage_client_ntlmssp_init(spnego))
1738 goto out;
1739 }
1740
1741 mechType++;
1742 }
1743
1744 DEBUG(1, ("Server offered no compatible mechanism\n"));
1745 x_fprintf(x_stdout, "BH Server offered no compatible mechanism\n");
1746 return;
1747 }
1748
1749 if (spnego.type == SPNEGO_NEG_TOKEN_TARG) {
1750
1751 if (spnego.negTokenTarg.supportedMech == NULL) {
1752 /* On accept/reject Windows does not send the
1753 mechanism anymore. Handle that here and
1754 shut down the mechanisms. */
1755
1756 switch (spnego.negTokenTarg.negResult) {
1757 case SPNEGO_ACCEPT_COMPLETED:
1758 x_fprintf(x_stdout, "AF\n");
1759 break;
1760 case SPNEGO_REJECT:
1761 x_fprintf(x_stdout, "NA\n");
1762 break;
1763 default:
1764 DEBUG(1, ("Got a negTokenTarg with no mech and an "
1765 "unknown negResult: %d\n",
1766 spnego.negTokenTarg.negResult));
1767 x_fprintf(x_stdout, "BH Got a negTokenTarg with"
1768 " no mech and an unknown "
1769 "negResult\n");
1770 }
1771
1772 ntlmssp_end(&client_ntlmssp_state);
1773 goto out;
1774 }
1775
1776 if (strcmp(spnego.negTokenTarg.supportedMech,
1777 OID_NTLMSSP) == 0) {
1778 manage_client_ntlmssp_targ(spnego);
1779 goto out;
1780 }
1781
1782 #if HAVE_KRB5
1783 if (strcmp(spnego.negTokenTarg.supportedMech,
1784 OID_KERBEROS5_OLD) == 0) {
1785 manage_client_krb5_targ(spnego);
1786 goto out;
1787 }
1788 #endif
1789
1790 }
1791
1792 DEBUG(1, ("Got an SPNEGO token I could not handle [%s]!\n", buf));
1793 x_fprintf(x_stdout, "BH Got an SPNEGO token I could not handle\n");
1794 return;
1795
1796 out:
1797 spnego_free_data(&spnego);
1798 return;
1799 }
1800
1801 static void manage_ntlm_server_1_request(struct ntlm_auth_state *state,
1802 char *buf, int length)
1803 {
1804 char *request, *parameter;
1805 static DATA_BLOB challenge;
1806 static DATA_BLOB lm_response;
1807 static DATA_BLOB nt_response;
1808 static char *full_username;
1809 static char *username;
1810 static char *domain;
1811 static char *plaintext_password;
1812 static bool ntlm_server_1_user_session_key;
1813 static bool ntlm_server_1_lm_session_key;
1814
1815 if (strequal(buf, ".")) {
1816 if (!full_username && !username) {
1817 x_fprintf(x_stdout, "Error: No username supplied!\n");
1818 } else if (plaintext_password) {
1819 /* handle this request as plaintext */
1820 if (!full_username) {
1821 if (asprintf(&full_username, "%s%c%s", domain, winbind_separator(), username) == -1) {
1822 x_fprintf(x_stdout, "Error: Out of memory in asprintf!\n.\n");
1823 return;
1824 }
1825 }
1826 if (check_plaintext_auth(full_username, plaintext_password, False)) {
1827 x_fprintf(x_stdout, "Authenticated: Yes\n");
1828 } else {
1829 x_fprintf(x_stdout, "Authenticated: No\n");
1830 }
1831 } else if (!lm_response.data && !nt_response.data) {
1832 x_fprintf(x_stdout, "Error: No password supplied!\n");
1833 } else if (!challenge.data) {
1834 x_fprintf(x_stdout, "Error: No lanman-challenge supplied!\n");
1835 } else {
1836 char *error_string = NULL;
1837 uchar lm_key[8];
1838 uchar user_session_key[16];
1839 uint32 flags = 0;
1840
1841 if (full_username && !username) {
1842 fstring fstr_user;
1843 fstring fstr_domain;
1844
1845 if (!parse_ntlm_auth_domain_user(full_username, fstr_user, fstr_domain)) {
1846 /* username might be 'tainted', don't print into our new-line deleimianted stream */
1847 x_fprintf(x_stdout, "Error: Could not parse into domain and username\n");
1848 }
1849 SAFE_FREE(username);
1850 SAFE_FREE(domain);
1851 username = smb_xstrdup(fstr_user);
1852 domain = smb_xstrdup(fstr_domain);
1853 }
1854
1855 if (!domain) {
1856 domain = smb_xstrdup(get_winbind_domain());
1857 }
1858
1859 if (ntlm_server_1_lm_session_key)
1860 flags |= WBFLAG_PAM_LMKEY;
1861
1862 if (ntlm_server_1_user_session_key)
1863 flags |= WBFLAG_PAM_USER_SESSION_KEY;
1864
1865 if (!NT_STATUS_IS_OK(
1866 contact_winbind_auth_crap(username,
1867 domain,
1868 global_myname(),
1869 &challenge,
1870 &lm_response,
1871 &nt_response,
1872 flags,
1873 lm_key,
1874 user_session_key,
1875 &error_string,
1876 NULL))) {
1877
1878 x_fprintf(x_stdout, "Authenticated: No\n");
1879 x_fprintf(x_stdout, "Authentication-Error: %s\n.\n", error_string);
1880 } else {
1881 static char zeros[16];
1882 char *hex_lm_key;
1883 char *hex_user_session_key;
1884
1885 x_fprintf(x_stdout, "Authenticated: Yes\n");
1886
1887 if (ntlm_server_1_lm_session_key
1888 && (memcmp(zeros, lm_key,
1889 sizeof(lm_key)) != 0)) {
1890 hex_lm_key = hex_encode_talloc(NULL,
1891 (const unsigned char *)lm_key,
1892 sizeof(lm_key));
1893 x_fprintf(x_stdout, "LANMAN-Session-Key: %s\n", hex_lm_key);
1894 TALLOC_FREE(hex_lm_key);
1895 }
1896
1897 if (ntlm_server_1_user_session_key
1898 && (memcmp(zeros, user_session_key,
1899 sizeof(user_session_key)) != 0)) {
1900 hex_user_session_key = hex_encode_talloc(NULL,
1901 (const unsigned char *)user_session_key,
1902 sizeof(user_session_key));
1903 x_fprintf(x_stdout, "User-Session-Key: %s\n", hex_user_session_key);
1904 TALLOC_FREE(hex_user_session_key);
1905 }
1906 }
1907 SAFE_FREE(error_string);
1908 }
1909 /* clear out the state */
1910 challenge = data_blob_null;
1911 nt_response = data_blob_null;
1912 lm_response = data_blob_null;
1913 SAFE_FREE(full_username);
1914 SAFE_FREE(username);
1915 SAFE_FREE(domain);
1916 SAFE_FREE(plaintext_password);
1917 ntlm_server_1_user_session_key = False;
1918 ntlm_server_1_lm_session_key = False;
1919 x_fprintf(x_stdout, ".\n");
1920
1921 return;
1922 }
1923
1924 request = buf;
1925
1926 /* Indicates a base64 encoded structure */
1927 parameter = strstr_m(request, ":: ");
1928 if (!parameter) {
1929 parameter = strstr_m(request, ": ");
1930
1931 if (!parameter) {
1932 DEBUG(0, ("Parameter not found!\n"));
1933 x_fprintf(x_stdout, "Error: Parameter not found!\n.\n");
1934 return;
1935 }
1936
1937 parameter[0] ='\0';
1938 parameter++;
1939 parameter[0] ='\0';
1940 parameter++;
1941
1942 } else {
1943 parameter[0] ='\0';
1944 parameter++;
1945 parameter[0] ='\0';
1946 parameter++;
1947 parameter[0] ='\0';
1948 parameter++;
1949
1950 base64_decode_inplace(parameter);
1951 }
1952
1953 if (strequal(request, "LANMAN-Challenge")) {
1954 challenge = strhex_to_data_blob(NULL, parameter);
1955 if (challenge.length != 8) {
1956 x_fprintf(x_stdout, "Error: hex decode of %s failed! (got %d bytes, expected 8)\n.\n",
1957 parameter,
1958 (int)challenge.length);
1959 challenge = data_blob_null;
1960 }
1961 } else if (strequal(request, "NT-Response")) {
1962 nt_response = strhex_to_data_blob(NULL, parameter);
1963 if (nt_response.length < 24) {
1964 x_fprintf(x_stdout, "Error: hex decode of %s failed! (only got %d bytes, needed at least 24)\n.\n",
1965 parameter,
1966 (int)nt_response.length);
1967 nt_response = data_blob_null;
1968 }
1969 } else if (strequal(request, "LANMAN-Response")) {
1970 lm_response = strhex_to_data_blob(NULL, parameter);
1971 if (lm_response.length != 24) {
1972 x_fprintf(x_stdout, "Error: hex decode of %s failed! (got %d bytes, expected 24)\n.\n",
1973 parameter,
1974 (int)lm_response.length);
1975 lm_response = data_blob_null;
1976 }
1977 } else if (strequal(request, "Password")) {
1978 plaintext_password = smb_xstrdup(parameter);
1979 } else if (strequal(request, "NT-Domain")) {
1980 domain = smb_xstrdup(parameter);
1981 } else if (strequal(request, "Username")) {
1982 username = smb_xstrdup(parameter);
1983 } else if (strequal(request, "Full-Username")) {
1984 full_username = smb_xstrdup(parameter);
1985 } else if (strequal(request, "Request-User-Session-Key")) {
1986 ntlm_server_1_user_session_key = strequal(parameter, "Yes");
1987 } else if (strequal(request, "Request-LanMan-Session-Key")) {
1988 ntlm_server_1_lm_session_key = strequal(parameter, "Yes");
1989 } else {
1990 x_fprintf(x_stdout, "Error: Unknown request %s\n.\n", request);
1991 }
1992 }
1993
1994 static void manage_ntlm_change_password_1_request(struct ntlm_auth_state *state,
1995 char *buf, int length)
1996 {
1997 char *request, *parameter;
1998 static DATA_BLOB new_nt_pswd;
1999 static DATA_BLOB old_nt_hash_enc;
2000 static DATA_BLOB new_lm_pswd;
2001 static DATA_BLOB old_lm_hash_enc;
2002 static char *full_username = NULL;
2003 static char *username = NULL;
2004 static char *domain = NULL;
2005 static char *newpswd = NULL;
2006 static char *oldpswd = NULL;
2007
2008 if (strequal(buf, ".")) {
2009 if(newpswd && oldpswd) {
2010 uchar old_nt_hash[16];
2011 uchar old_lm_hash[16];
2012 uchar new_nt_hash[16];
2013 uchar new_lm_hash[16];
2014
2015 new_nt_pswd = data_blob(NULL, 516);
2016 old_nt_hash_enc = data_blob(NULL, 16);
2017
2018 /* Calculate the MD4 hash (NT compatible) of the
2019 * password */
2020 E_md4hash(oldpswd, old_nt_hash);
2021 E_md4hash(newpswd, new_nt_hash);
2022
2023 /* E_deshash returns false for 'long'
2024 passwords (> 14 DOS chars).
2025
2026 Therefore, don't send a buffer
2027 encrypted with the truncated hash
2028 (it could allow an even easier
2029 attack on the password)
2030
2031 Likewise, obey the admin's restriction
2032 */
2033
2034 if (lp_client_lanman_auth() &&
2035 E_deshash(newpswd, new_lm_hash) &&
2036 E_deshash(oldpswd, old_lm_hash)) {
2037 new_lm_pswd = data_blob(NULL, 516);
2038 old_lm_hash_enc = data_blob(NULL, 16);
2039 encode_pw_buffer(new_lm_pswd.data, newpswd,
2040 STR_UNICODE);
2041
2042 arcfour_crypt(new_lm_pswd.data, old_nt_hash, 516);
2043 E_old_pw_hash(new_nt_hash, old_lm_hash,
2044 old_lm_hash_enc.data);
2045 } else {
2046 new_lm_pswd.data = NULL;
2047 new_lm_pswd.length = 0;
2048 old_lm_hash_enc.data = NULL;
2049 old_lm_hash_enc.length = 0;
2050 }
2051
2052 encode_pw_buffer(new_nt_pswd.data, newpswd,
2053 STR_UNICODE);
2054
2055 arcfour_crypt(new_nt_pswd.data, old_nt_hash, 516);
2056 E_old_pw_hash(new_nt_hash, old_nt_hash,
2057 old_nt_hash_enc.data);
2058 }
2059
2060 if (!full_username && !username) {
2061 x_fprintf(x_stdout, "Error: No username supplied!\n");
2062 } else if ((!new_nt_pswd.data || !old_nt_hash_enc.data) &&
2063 (!new_lm_pswd.data || old_lm_hash_enc.data) ) {
2064 x_fprintf(x_stdout, "Error: No NT or LM password "
2065 "blobs supplied!\n");
2066 } else {
2067 char *error_string = NULL;
2068
2069 if (full_username && !username) {
2070 fstring fstr_user;
2071 fstring fstr_domain;
2072
2073 if (!parse_ntlm_auth_domain_user(full_username,
2074 fstr_user,
2075 fstr_domain)) {
2076 /* username might be 'tainted', don't
2077 * print into our new-line
2078 * deleimianted stream */
2079 x_fprintf(x_stdout, "Error: Could not "
2080 "parse into domain and "
2081 "username\n");
2082 SAFE_FREE(username);
2083 username = smb_xstrdup(full_username);
2084 } else {
2085 SAFE_FREE(username);
2086 SAFE_FREE(domain);
2087 username = smb_xstrdup(fstr_user);
2088 domain = smb_xstrdup(fstr_domain);
2089 }
2090
2091 }
2092
2093 if(!NT_STATUS_IS_OK(contact_winbind_change_pswd_auth_crap(
2094 username, domain,
2095 new_nt_pswd,
2096 old_nt_hash_enc,
2097 new_lm_pswd,
2098 old_lm_hash_enc,
2099 &error_string))) {
2100 x_fprintf(x_stdout, "Password-Change: No\n");
2101 x_fprintf(x_stdout, "Password-Change-Error: "
2102 "%s\n.\n", error_string);
2103 } else {
2104 x_fprintf(x_stdout, "Password-Change: Yes\n");
2105 }
2106
2107 SAFE_FREE(error_string);
2108 }
2109 /* clear out the state */
2110 new_nt_pswd = data_blob_null;
2111 old_nt_hash_enc = data_blob_null;
2112 new_lm_pswd = data_blob_null;
2113 old_nt_hash_enc = data_blob_null;
2114 SAFE_FREE(full_username);
2115 SAFE_FREE(username);
2116 SAFE_FREE(domain);
2117 SAFE_FREE(newpswd);
2118 SAFE_FREE(oldpswd);
2119 x_fprintf(x_stdout, ".\n");
2120
2121 return;
2122 }
2123
2124 request = buf;
2125
2126 /* Indicates a base64 encoded structure */
2127 parameter = strstr_m(request, ":: ");
2128 if (!parameter) {
2129 parameter = strstr_m(request, ": ");
2130
2131 if (!parameter) {
2132 DEBUG(0, ("Parameter not found!\n"));
2133 x_fprintf(x_stdout, "Error: Parameter not found!\n.\n");
2134 return;
2135 }
2136
2137 parameter[0] ='\0';
2138 parameter++;
2139 parameter[0] ='\0';
2140 parameter++;
2141 } else {
2142 parameter[0] ='\0';
2143 parameter++;
2144 parameter[0] ='\0';
2145 parameter++;
2146 parameter[0] ='\0';
2147 parameter++;
2148
2149 base64_decode_inplace(parameter);
2150 }
2151
2152 if (strequal(request, "new-nt-password-blob")) {
2153 new_nt_pswd = strhex_to_data_blob(NULL, parameter);
2154 if (new_nt_pswd.length != 516) {
2155 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2156 "(got %d bytes, expected 516)\n.\n",
2157 parameter,
2158 (int)new_nt_pswd.length);
2159 new_nt_pswd = data_blob_null;
2160 }
2161 } else if (strequal(request, "old-nt-hash-blob")) {
2162 old_nt_hash_enc = strhex_to_data_blob(NULL, parameter);
2163 if (old_nt_hash_enc.length != 16) {
2164 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2165 "(got %d bytes, expected 16)\n.\n",
2166 parameter,
2167 (int)old_nt_hash_enc.length);
2168 old_nt_hash_enc = data_blob_null;
2169 }
2170 } else if (strequal(request, "new-lm-password-blob")) {
2171 new_lm_pswd = strhex_to_data_blob(NULL, parameter);
2172 if (new_lm_pswd.length != 516) {
2173 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2174 "(got %d bytes, expected 516)\n.\n",
2175 parameter,
2176 (int)new_lm_pswd.length);
2177 new_lm_pswd = data_blob_null;
2178 }
2179 }
2180 else if (strequal(request, "old-lm-hash-blob")) {
2181 old_lm_hash_enc = strhex_to_data_blob(NULL, parameter);
2182 if (old_lm_hash_enc.length != 16)
2183 {
2184 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2185 "(got %d bytes, expected 16)\n.\n",
2186 parameter,
2187 (int)old_lm_hash_enc.length);
2188 old_lm_hash_enc = data_blob_null;
2189 }
2190 } else if (strequal(request, "nt-domain")) {
2191 domain = smb_xstrdup(parameter);
2192 } else if(strequal(request, "username")) {
2193 username = smb_xstrdup(parameter);
2194 } else if(strequal(request, "full-username")) {
2195 username = smb_xstrdup(parameter);
2196 } else if(strequal(request, "new-password")) {
2197 newpswd = smb_xstrdup(parameter);
2198 } else if (strequal(request, "old-password")) {
2199 oldpswd = smb_xstrdup(parameter);
2200 } else {
2201 x_fprintf(x_stdout, "Error: Unknown request %s\n.\n", request);
2202 }
2203 }
2204
2205 static void manage_squid_request(struct ntlm_auth_state *state,
2206 stdio_helper_function fn)
2207 {
2208 char *buf;
2209 char tmp[INITIAL_BUFFER_SIZE+1];
2210 int length, buf_size = 0;
2211 char *c;
2212
2213 buf = talloc_strdup(state->mem_ctx, "");
2214 if (!buf) {
2215 DEBUG(0, ("Failed to allocate input buffer.\n"));
2216 x_fprintf(x_stderr, "ERR\n");
2217 exit(1);
2218 }
2219
2220 do {
2221
2222 /* this is not a typo - x_fgets doesn't work too well under
2223 * squid */
2224 if (fgets(tmp, sizeof(tmp)-1, stdin) == NULL) {
2225 if (ferror(stdin)) {
2226 DEBUG(1, ("fgets() failed! dying..... errno=%d "
2227 "(%s)\n", ferror(stdin),
2228 strerror(ferror(stdin))));
2229
2230 exit(1);
2231 }
2232 exit(0);
2233 }
2234
2235 buf = talloc_strdup_append_buffer(buf, tmp);
2236 buf_size += INITIAL_BUFFER_SIZE;
2237
2238 if (buf_size > MAX_BUFFER_SIZE) {
2239 DEBUG(2, ("Oversized message\n"));
2240 x_fprintf(x_stderr, "ERR\n");
2241 talloc_free(buf);
2242 return;
2243 }
2244
2245 c = strchr(buf, '\n');
2246 } while (c == NULL);
2247
2248 *c = '\0';
2249 length = c-buf;
2250
2251 DEBUG(10, ("Got '%s' from squid (length: %d).\n",buf,length));
2252
2253 if (buf[0] == '\0') {
2254 DEBUG(2, ("Invalid Request\n"));
2255 x_fprintf(x_stderr, "ERR\n");
2256 talloc_free(buf);
2257 return;
2258 }
2259
2260 fn(state, buf, length);
2261 talloc_free(buf);
2262 }
2263
2264
2265 static void squid_stream(enum stdio_helper_mode stdio_mode, stdio_helper_function fn) {
2266 TALLOC_CTX *mem_ctx;
2267 struct ntlm_auth_state *state;
2268
2269 /* initialize FDescs */
2270 x_setbuf(x_stdout, NULL);
2271 x_setbuf(x_stderr, NULL);
2272
2273 mem_ctx = talloc_init("ntlm_auth");
2274 if (!mem_ctx) {
2275 DEBUG(0, ("squid_stream: Failed to create talloc context\n"));
2276 x_fprintf(x_stderr, "ERR\n");
2277 exit(1);
2278 }
2279
2280 state = talloc_zero(mem_ctx, struct ntlm_auth_state);
2281 if (!state) {
2282 DEBUG(0, ("squid_stream: Failed to talloc ntlm_auth_state\n"));
2283 x_fprintf(x_stderr, "ERR\n");
2284 exit(1);
2285 }
2286
2287 state->mem_ctx = mem_ctx;
2288 state->helper_mode = stdio_mode;
2289
2290 while(1) {
2291 manage_squid_request(state, fn);
2292 }
2293 }
2294
2295
2296 /* Authenticate a user with a challenge/response */
2297
2298 static bool check_auth_crap(void)
2299 {
2300 NTSTATUS nt_status;
2301 uint32 flags = 0;
2302 char lm_key[8];
2303 char user_session_key[16];
2304 char *hex_lm_key;
2305 char *hex_user_session_key;
2306 char *error_string;
2307 static uint8 zeros[16];
2308
2309 x_setbuf(x_stdout, NULL);
2310
2311 if (request_lm_key)
2312 flags |= WBFLAG_PAM_LMKEY;
2313
2314 if (request_user_session_key)
2315 flags |= WBFLAG_PAM_USER_SESSION_KEY;
2316
2317 flags |= WBFLAG_PAM_NT_STATUS_SQUASH;
2318
2319 nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
2320 opt_workstation,
2321 &opt_challenge,
2322 &opt_lm_response,
2323 &opt_nt_response,
2324 flags,
2325 (unsigned char *)lm_key,
2326 (unsigned char *)user_session_key,
2327 &error_string, NULL);
2328
2329 if (!NT_STATUS_IS_OK(nt_status)) {
2330 x_fprintf(x_stdout, "%s (0x%x)\n",
2331 error_string,
2332 NT_STATUS_V(nt_status));
2333 SAFE_FREE(error_string);
2334 return False;
2335 }
2336
2337 if (request_lm_key
2338 && (memcmp(zeros, lm_key,
2339 sizeof(lm_key)) != 0)) {
2340 hex_lm_key = hex_encode_talloc(talloc_tos(), (const unsigned char *)lm_key,
2341 sizeof(lm_key));
2342 x_fprintf(x_stdout, "LM_KEY: %s\n", hex_lm_key);
2343 TALLOC_FREE(hex_lm_key);
2344 }
2345 if (request_user_session_key
2346 && (memcmp(zeros, user_session_key,
2347 sizeof(user_session_key)) != 0)) {
2348 hex_user_session_key = hex_encode_talloc(talloc_tos(), (const unsigned char *)user_session_key,
2349 sizeof(user_session_key));
2350 x_fprintf(x_stdout, "NT_KEY: %s\n", hex_user_session_key);
2351 TALLOC_FREE(hex_user_session_key);
2352 }
2353
2354 return True;
2355 }
2356
2357 /* Main program */
2358
2359 enum {
2360 OPT_USERNAME = 1000,
2361 OPT_DOMAIN,
2362 OPT_WORKSTATION,
2363 OPT_CHALLENGE,
2364 OPT_RESPONSE,
2365 OPT_LM,
2366 OPT_NT,
2367 OPT_PASSWORD,
2368 OPT_LM_KEY,
2369 OPT_USER_SESSION_KEY,
2370 OPT_DIAGNOSTICS,
2371 OPT_REQUIRE_MEMBERSHIP,
2372 OPT_USE_CACHED_CREDS,
2373 OPT_PAM_WINBIND_CONF
2374 };
2375
2376 int main(int argc, const char **argv)
2377 {
2378 TALLOC_CTX *frame = talloc_stackframe();
2379 int opt;
2380 static const char *helper_protocol;
2381 static int diagnostics;
2382
2383 static const char *hex_challenge;
2384 static const char *hex_lm_response;
2385 static const char *hex_nt_response;
2386
2387 poptContext pc;
2388
2389 /* NOTE: DO NOT change this interface without considering the implications!
2390 This is an external interface, which other programs will use to interact
2391 with this helper.
2392 */
2393
2394 /* We do not use single-letter command abbreviations, because they harm future
2395 interface stability. */
2396
2397 struct poptOption long_options[] = {
2398 POPT_AUTOHELP
2399 { "helper-protocol", 0, POPT_ARG_STRING, &helper_protocol, OPT_DOMAIN, "operate as a stdio-based helper", "helper protocol to use"},
2400 { "username", 0, POPT_ARG_STRING, &opt_username, OPT_USERNAME, "username"},
2401 { "domain", 0, POPT_ARG_STRING, &opt_domain, OPT_DOMAIN, "domain name"},
2402 { "workstation", 0, POPT_ARG_STRING, &opt_workstation, OPT_WORKSTATION, "workstation"},
2403 { "challenge", 0, POPT_ARG_STRING, &hex_challenge, OPT_CHALLENGE, "challenge (HEX encoded)"},
2404 { "lm-response", 0, POPT_ARG_STRING, &hex_lm_response, OPT_LM, "LM Response to the challenge (HEX encoded)"},
2405 { "nt-response", 0, POPT_ARG_STRING, &hex_nt_response, OPT_NT, "NT or NTLMv2 Response to the challenge (HEX encoded)"},
2406 { "password", 0, POPT_ARG_STRING, &opt_password, OPT_PASSWORD, "User's plaintext password"},
2407 { "request-lm-key", 0, POPT_ARG_NONE, &request_lm_key, OPT_LM_KEY, "Retrieve LM session key"},
2408 { "request-nt-key", 0, POPT_ARG_NONE, &request_user_session_key, OPT_USER_SESSION_KEY, "Retrieve User (NT) session key"},
2409 { "use-cached-creds", 0, POPT_ARG_NONE, &use_cached_creds, OPT_USE_CACHED_CREDS, "Use cached credentials if no password is given"},
2410 { "diagnostics", 0, POPT_ARG_NONE, &diagnostics, OPT_DIAGNOSTICS, "Perform diagnostics on the authentictaion chain"},
2411 { "require-membership-of", 0, POPT_ARG_STRING, &require_membership_of, OPT_REQUIRE_MEMBERSHIP, "Require that a user be a member of this group (either name or SID) for authentication to succeed" },
2412 { "pam-winbind-conf", 0, POPT_ARG_STRING, &opt_pam_winbind_conf, OPT_PAM_WINBIND_CONF, "Require that request must set WBFLAG_PAM_CONTACT_TRUSTDOM when krb5 auth is required" },
2413 POPT_COMMON_CONFIGFILE
2414 POPT_COMMON_VERSION
2415 POPT_TABLEEND
2416 };
2417
2418 /* Samba client initialisation */
2419 load_case_tables();
2420
2421 dbf = x_stderr;
2422
2423 /* Parse options */
2424
2425 pc = poptGetContext("ntlm_auth", argc, argv, long_options, 0);
2426
2427 /* Parse command line options */
2428
2429 if (argc == 1) {
2430 poptPrintHelp(pc, stderr, 0);
2431 return 1;
2432 }
2433
2434 while((opt = poptGetNextOpt(pc)) != -1) {
2435 /* Get generic config options like --configfile */
2436 }
2437
2438 poptFreeContext(pc);
2439
2440 if (!lp_load(get_dyn_CONFIGFILE(), True, False, False, True)) {
2441 d_fprintf(stderr, "ntlm_auth: error opening config file %s. Error was %s\n",
2442 get_dyn_CONFIGFILE(), strerror(errno));
2443 exit(1);
2444 }
2445
2446 pc = poptGetContext(NULL, argc, (const char **)argv, long_options,
2447 POPT_CONTEXT_KEEP_FIRST);
2448
2449 while((opt = poptGetNextOpt(pc)) != -1) {
2450 switch (opt) {
2451 case OPT_CHALLENGE:
2452 opt_challenge = strhex_to_data_blob(NULL, hex_challenge);
2453 if (opt_challenge.length != 8) {
2454 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
2455 hex_challenge,
2456 (int)opt_challenge.length);
2457 exit(1);
2458 }
2459 break;
2460 case OPT_LM:
2461 opt_lm_response = strhex_to_data_blob(NULL, hex_lm_response);
2462 if (opt_lm_response.length != 24) {
2463 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
2464 hex_lm_response,
2465 (int)opt_lm_response.length);
2466 exit(1);
2467 }
2468 break;
2469
2470 case OPT_NT:
2471 opt_nt_response = strhex_to_data_blob(NULL, hex_nt_response);
2472 if (opt_nt_response.length < 24) {
2473 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
2474 hex_nt_response,
2475 (int)opt_nt_response.length);
2476 exit(1);
2477 }
2478 break;
2479
2480 case OPT_REQUIRE_MEMBERSHIP:
2481 if (StrnCaseCmp("S-", require_membership_of, 2) == 0) {
2482 require_membership_of_sid = require_membership_of;
2483 }
2484 break;
2485 }
2486 }
2487
2488 if (opt_username) {
2489 char *domain = SMB_STRDUP(opt_username);
2490 char *p = strchr_m(domain, *lp_winbind_separator());
2491 if (p) {
2492 opt_username = p+1;
2493 *p = '\0';
2494 if (opt_domain && !strequal(opt_domain, domain)) {
2495 x_fprintf(x_stderr, "Domain specified in username (%s) "
2496 "doesn't match specified domain (%s)!\n\n",
2497 domain, opt_domain);
2498 poptPrintHelp(pc, stderr, 0);
2499 exit(1);
2500 }
2501 opt_domain = domain;
2502 } else {
2503 SAFE_FREE(domain);
2504 }
2505 }
2506
2507 /* Note: if opt_domain is "" then send no domain */
2508 if (opt_domain == NULL) {
2509 opt_domain = get_winbind_domain();
2510 }
2511
2512 if (opt_workstation == NULL) {
2513 opt_workstation = "";
2514 }
2515
2516 if (helper_protocol) {
2517 int i;
2518 for (i=0; i<NUM_HELPER_MODES; i++) {
2519 if (strcmp(helper_protocol, stdio_helper_protocols[i].name) == 0) {
2520 squid_stream(stdio_helper_protocols[i].mode, stdio_helper_protocols[i].fn);
2521 exit(0);
2522 }
2523 }
2524 x_fprintf(x_stderr, "unknown helper protocol [%s]\n\nValid helper protools:\n\n", helper_protocol);
2525
2526 for (i=0; i<NUM_HELPER_MODES; i++) {
2527 x_fprintf(x_stderr, "%s\n", stdio_helper_protocols[i].name);
2528 }
2529
2530 exit(1);
2531 }
2532
2533 if (!opt_username || !*opt_username) {
2534 x_fprintf(x_stderr, "username must be specified!\n\n");
2535 poptPrintHelp(pc, stderr, 0);
2536 exit(1);
2537 }
2538
2539 if (opt_challenge.length) {
2540 if (!check_auth_crap()) {
2541 exit(1);
2542 }
2543 exit(0);
2544 }
2545
2546 if (!opt_password) {
2547 opt_password = getpass("password: ");
2548 }
2549
2550 if (diagnostics) {
2551 if (!diagnose_ntlm_auth()) {
2552 return 1;
2553 }
2554 } else {
2555 fstring user;
2556
2557 fstr_sprintf(user, "%s%c%s", opt_domain, winbind_separator(), opt_username);
2558 if (!check_plaintext_auth(user, opt_password, True)) {
2559 return 1;
2560 }
2561 }
2562
2563 /* Exit code */
2564
2565 poptFreeContext(pc);
2566 TALLOC_FREE(frame);
2567 return 0;
2568 }
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