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Use CommandError exception to deal with problems during net commands.
[Samba/eduardoll.git] / source3 / utils / ntlm_auth.c
blob57e425154385daa94c906f0146ebd45b27bcc4c9
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 "ntlmssp.h"
31 #include "smb_krb5.h"
32 #include <iniparser.h>
33
34 #ifndef PAM_WINBIND_CONFIG_FILE
35 #define PAM_WINBIND_CONFIG_FILE "/etc/security/pam_winbind.conf"
36 #endif
37
38 #define WINBIND_KRB5_AUTH 0x00000080
39
40 #undef DBGC_CLASS
41 #define DBGC_CLASS DBGC_WINBIND
42
43 #define INITIAL_BUFFER_SIZE 300
44 #define MAX_BUFFER_SIZE 630000
45
46 enum stdio_helper_mode {
47 SQUID_2_4_BASIC,
48 SQUID_2_5_BASIC,
49 SQUID_2_5_NTLMSSP,
50 NTLMSSP_CLIENT_1,
51 GSS_SPNEGO,
52 GSS_SPNEGO_CLIENT,
53 NTLM_SERVER_1,
54 NTLM_CHANGE_PASSWORD_1,
55 NUM_HELPER_MODES
56 };
57
58 enum ntlm_auth_cli_state {
59 CLIENT_INITIAL = 0,
60 CLIENT_RESPONSE,
61 CLIENT_FINISHED,
62 CLIENT_ERROR
63 };
64
65 enum ntlm_auth_svr_state {
66 SERVER_INITIAL = 0,
67 SERVER_CHALLENGE,
68 SERVER_FINISHED,
69 SERVER_ERROR
70 };
71
72 struct ntlm_auth_state {
73 TALLOC_CTX *mem_ctx;
74 enum stdio_helper_mode helper_mode;
75 enum ntlm_auth_cli_state cli_state;
76 enum ntlm_auth_svr_state svr_state;
77 struct ntlmssp_state *ntlmssp_state;
78 uint32_t neg_flags;
79 char *want_feature_list;
80 bool have_session_key;
81 DATA_BLOB session_key;
82 DATA_BLOB initial_message;
83 };
84
85 typedef void (*stdio_helper_function)(struct ntlm_auth_state *state, char *buf,
86 int length);
87
88 static void manage_squid_basic_request (struct ntlm_auth_state *state,
89 char *buf, int length);
90
91 static void manage_squid_ntlmssp_request (struct ntlm_auth_state *state,
92 char *buf, int length);
93
94 static void manage_client_ntlmssp_request (struct ntlm_auth_state *state,
95 char *buf, int length);
96
97 static void manage_gss_spnego_request (struct ntlm_auth_state *state,
98 char *buf, int length);
99
100 static void manage_gss_spnego_client_request (struct ntlm_auth_state *state,
101 char *buf, int length);
102
103 static void manage_ntlm_server_1_request (struct ntlm_auth_state *state,
104 char *buf, int length);
105
106 static void manage_ntlm_change_password_1_request(struct ntlm_auth_state *state,
107 char *buf, int length);
108
109 static const struct {
110 enum stdio_helper_mode mode;
111 const char *name;
112 stdio_helper_function fn;
113 } stdio_helper_protocols[] = {
114 { SQUID_2_4_BASIC, "squid-2.4-basic", manage_squid_basic_request},
115 { SQUID_2_5_BASIC, "squid-2.5-basic", manage_squid_basic_request},
116 { SQUID_2_5_NTLMSSP, "squid-2.5-ntlmssp", manage_squid_ntlmssp_request},
117 { NTLMSSP_CLIENT_1, "ntlmssp-client-1", manage_client_ntlmssp_request},
118 { GSS_SPNEGO, "gss-spnego", manage_gss_spnego_request},
119 { GSS_SPNEGO_CLIENT, "gss-spnego-client", manage_gss_spnego_client_request},
120 { NTLM_SERVER_1, "ntlm-server-1", manage_ntlm_server_1_request},
121 { NTLM_CHANGE_PASSWORD_1, "ntlm-change-password-1", manage_ntlm_change_password_1_request},
122 { NUM_HELPER_MODES, NULL, NULL}
123 };
124
125 const char *opt_username;
126 const char *opt_domain;
127 const char *opt_workstation;
128 const char *opt_password;
129 static DATA_BLOB opt_challenge;
130 static DATA_BLOB opt_lm_response;
131 static DATA_BLOB opt_nt_response;
132 static int request_lm_key;
133 static int request_user_session_key;
134 static int use_cached_creds;
135
136 static const char *require_membership_of;
137 static const char *require_membership_of_sid;
138 static const char *opt_pam_winbind_conf;
139
140 static char winbind_separator(void)
141 {
142 struct winbindd_response response;
143 static bool got_sep;
144 static char sep;
145
146 if (got_sep)
147 return sep;
148
149 ZERO_STRUCT(response);
150
151 /* Send off request */
152
153 if (winbindd_request_response(WINBINDD_INFO, NULL, &response) !=
154 NSS_STATUS_SUCCESS) {
155 d_printf("could not obtain winbind separator!\n");
156 return *lp_winbind_separator();
157 }
158
159 sep = response.data.info.winbind_separator;
160 got_sep = True;
161
162 if (!sep) {
163 d_printf("winbind separator was NULL!\n");
164 return *lp_winbind_separator();
165 }
166
167 return sep;
168 }
169
170 const char *get_winbind_domain(void)
171 {
172 struct winbindd_response response;
173
174 static fstring winbind_domain;
175 if (*winbind_domain) {
176 return winbind_domain;
177 }
178
179 ZERO_STRUCT(response);
180
181 /* Send off request */
182
183 if (winbindd_request_response(WINBINDD_DOMAIN_NAME, NULL, &response) !=
184 NSS_STATUS_SUCCESS) {
185 DEBUG(0, ("could not obtain winbind domain name!\n"));
186 return lp_workgroup();
187 }
188
189 fstrcpy(winbind_domain, response.data.domain_name);
190
191 return winbind_domain;
192
193 }
194
195 const char *get_winbind_netbios_name(void)
196 {
197 struct winbindd_response response;
198
199 static fstring winbind_netbios_name;
200
201 if (*winbind_netbios_name) {
202 return winbind_netbios_name;
203 }
204
205 ZERO_STRUCT(response);
206
207 /* Send off request */
208
209 if (winbindd_request_response(WINBINDD_NETBIOS_NAME, NULL, &response) !=
210 NSS_STATUS_SUCCESS) {
211 DEBUG(0, ("could not obtain winbind netbios name!\n"));
212 return global_myname();
213 }
214
215 fstrcpy(winbind_netbios_name, response.data.netbios_name);
216
217 return winbind_netbios_name;
218
219 }
220
221 DATA_BLOB get_challenge(void)
222 {
223 static DATA_BLOB chal;
224 if (opt_challenge.length)
225 return opt_challenge;
226
227 chal = data_blob(NULL, 8);
228
229 generate_random_buffer(chal.data, chal.length);
230 return chal;
231 }
232
233 /* Copy of parse_domain_user from winbindd_util.c. Parse a string of the
234 form DOMAIN/user into a domain and a user */
235
236 static bool parse_ntlm_auth_domain_user(const char *domuser, fstring domain,
237 fstring user)
238 {
239
240 char *p = strchr(domuser,winbind_separator());
241
242 if (!p) {
243 return False;
244 }
245
246 fstrcpy(user, p+1);
247 fstrcpy(domain, domuser);
248 domain[PTR_DIFF(p, domuser)] = 0;
249 strupper_m(domain);
250
251 return True;
252 }
253
254 static bool get_require_membership_sid(void) {
255 struct winbindd_request request;
256 struct winbindd_response response;
257
258 if (!require_membership_of) {
259 return True;
260 }
261
262 if (require_membership_of_sid) {
263 return True;
264 }
265
266 /* Otherwise, ask winbindd for the name->sid request */
267
268 ZERO_STRUCT(request);
269 ZERO_STRUCT(response);
270
271 if (!parse_ntlm_auth_domain_user(require_membership_of,
272 request.data.name.dom_name,
273 request.data.name.name)) {
274 DEBUG(0, ("Could not parse %s into seperate domain/name parts!\n",
275 require_membership_of));
276 return False;
277 }
278
279 if (winbindd_request_response(WINBINDD_LOOKUPNAME, &request, &response) !=
280 NSS_STATUS_SUCCESS) {
281 DEBUG(0, ("Winbindd lookupname failed to resolve %s into a SID!\n",
282 require_membership_of));
283 return False;
284 }
285
286 require_membership_of_sid = SMB_STRDUP(response.data.sid.sid);
287
288 if (require_membership_of_sid)
289 return True;
290
291 return False;
292 }
293
294 /*
295 * Get some configuration from pam_winbind.conf to see if we
296 * need to contact trusted domain
297 */
298
299 int get_pam_winbind_config()
300 {
301 int ctrl = 0;
302 dictionary *d = NULL;
303
304 if (!opt_pam_winbind_conf || !*opt_pam_winbind_conf) {
305 opt_pam_winbind_conf = PAM_WINBIND_CONFIG_FILE;
306 }
307
308 d = iniparser_load(CONST_DISCARD(char *, opt_pam_winbind_conf));
309
310 if (!d) {
311 return 0;
312 }
313
314 if (iniparser_getboolean(d, CONST_DISCARD(char *, "global:krb5_auth"), false)) {
315 ctrl |= WINBIND_KRB5_AUTH;
316 }
317
318 iniparser_freedict(d);
319
320 return ctrl;
321 }
322
323 /* Authenticate a user with a plaintext password */
324
325 static bool check_plaintext_auth(const char *user, const char *pass,
326 bool stdout_diagnostics)
327 {
328 struct winbindd_request request;
329 struct winbindd_response response;
330 NSS_STATUS result;
331
332 if (!get_require_membership_sid()) {
333 return False;
334 }
335
336 /* Send off request */
337
338 ZERO_STRUCT(request);
339 ZERO_STRUCT(response);
340
341 fstrcpy(request.data.auth.user, user);
342 fstrcpy(request.data.auth.pass, pass);
343 if (require_membership_of_sid) {
344 strlcpy(request.data.auth.require_membership_of_sid,
345 require_membership_of_sid,
346 sizeof(request.data.auth.require_membership_of_sid));
347 }
348
349 result = winbindd_request_response(WINBINDD_PAM_AUTH, &request, &response);
350
351 /* Display response */
352
353 if (stdout_diagnostics) {
354 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
355 d_printf("Reading winbind reply failed! (0x01)\n");
356 }
357
358 d_printf("%s: %s (0x%x)\n",
359 response.data.auth.nt_status_string,
360 response.data.auth.error_string,
361 response.data.auth.nt_status);
362 } else {
363 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
364 DEBUG(1, ("Reading winbind reply failed! (0x01)\n"));
365 }
366
367 DEBUG(3, ("%s: %s (0x%x)\n",
368 response.data.auth.nt_status_string,
369 response.data.auth.error_string,
370 response.data.auth.nt_status));
371 }
372
373 return (result == NSS_STATUS_SUCCESS);
374 }
375
376 /* authenticate a user with an encrypted username/password */
377
378 NTSTATUS contact_winbind_auth_crap(const char *username,
379 const char *domain,
380 const char *workstation,
381 const DATA_BLOB *challenge,
382 const DATA_BLOB *lm_response,
383 const DATA_BLOB *nt_response,
384 uint32 flags,
385 uint8 lm_key[8],
386 uint8 user_session_key[16],
387 char **error_string,
388 char **unix_name)
389 {
390 NTSTATUS nt_status;
391 NSS_STATUS result;
392 struct winbindd_request request;
393 struct winbindd_response response;
394
395 if (!get_require_membership_sid()) {
396 return NT_STATUS_INVALID_PARAMETER;
397 }
398
399 ZERO_STRUCT(request);
400 ZERO_STRUCT(response);
401
402 request.flags = flags;
403
404 request.data.auth_crap.logon_parameters = MSV1_0_ALLOW_WORKSTATION_TRUST_ACCOUNT | MSV1_0_ALLOW_SERVER_TRUST_ACCOUNT;
405
406 if (require_membership_of_sid)
407 fstrcpy(request.data.auth_crap.require_membership_of_sid, require_membership_of_sid);
408
409 fstrcpy(request.data.auth_crap.user, username);
410 fstrcpy(request.data.auth_crap.domain, domain);
411
412 fstrcpy(request.data.auth_crap.workstation,
413 workstation);
414
415 memcpy(request.data.auth_crap.chal, challenge->data, MIN(challenge->length, 8));
416
417 if (lm_response && lm_response->length) {
418 memcpy(request.data.auth_crap.lm_resp,
419 lm_response->data,
420 MIN(lm_response->length, sizeof(request.data.auth_crap.lm_resp)));
421 request.data.auth_crap.lm_resp_len = lm_response->length;
422 }
423
424 if (nt_response && nt_response->length) {
425 if (nt_response->length > sizeof(request.data.auth_crap.nt_resp)) {
426 request.flags = request.flags | WBFLAG_BIG_NTLMV2_BLOB;
427 request.extra_len = nt_response->length;
428 request.extra_data.data = SMB_MALLOC_ARRAY(char, request.extra_len);
429 if (request.extra_data.data == NULL) {
430 return NT_STATUS_NO_MEMORY;
431 }
432 memcpy(request.extra_data.data, nt_response->data,
433 nt_response->length);
434
435 } else {
436 memcpy(request.data.auth_crap.nt_resp,
437 nt_response->data, nt_response->length);
438 }
439 request.data.auth_crap.nt_resp_len = nt_response->length;
440 }
441
442 result = winbindd_request_response(WINBINDD_PAM_AUTH_CRAP, &request, &response);
443 SAFE_FREE(request.extra_data.data);
444
445 /* Display response */
446
447 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
448 nt_status = NT_STATUS_UNSUCCESSFUL;
449 if (error_string)
450 *error_string = smb_xstrdup("Reading winbind reply failed!");
451 winbindd_free_response(&response);
452 return nt_status;
453 }
454
455 nt_status = (NT_STATUS(response.data.auth.nt_status));
456 if (!NT_STATUS_IS_OK(nt_status)) {
457 if (error_string)
458 *error_string = smb_xstrdup(response.data.auth.error_string);
459 winbindd_free_response(&response);
460 return nt_status;
461 }
462
463 if ((flags & WBFLAG_PAM_LMKEY) && lm_key) {
464 memcpy(lm_key, response.data.auth.first_8_lm_hash,
465 sizeof(response.data.auth.first_8_lm_hash));
466 }
467 if ((flags & WBFLAG_PAM_USER_SESSION_KEY) && user_session_key) {
468 memcpy(user_session_key, response.data.auth.user_session_key,
469 sizeof(response.data.auth.user_session_key));
470 }
471
472 if (flags & WBFLAG_PAM_UNIX_NAME) {
473 *unix_name = SMB_STRDUP(response.data.auth.unix_username);
474 if (!*unix_name) {
475 winbindd_free_response(&response);
476 return NT_STATUS_NO_MEMORY;
477 }
478 }
479
480 winbindd_free_response(&response);
481 return nt_status;
482 }
483
484 /* contact server to change user password using auth crap */
485 static NTSTATUS contact_winbind_change_pswd_auth_crap(const char *username,
486 const char *domain,
487 const DATA_BLOB new_nt_pswd,
488 const DATA_BLOB old_nt_hash_enc,
489 const DATA_BLOB new_lm_pswd,
490 const DATA_BLOB old_lm_hash_enc,
491 char **error_string)
492 {
493 NTSTATUS nt_status;
494 NSS_STATUS result;
495 struct winbindd_request request;
496 struct winbindd_response response;
497
498 if (!get_require_membership_sid())
499 {
500 if(error_string)
501 *error_string = smb_xstrdup("Can't get membership sid.");
502 return NT_STATUS_INVALID_PARAMETER;
503 }
504
505 ZERO_STRUCT(request);
506 ZERO_STRUCT(response);
507
508 if(username != NULL)
509 fstrcpy(request.data.chng_pswd_auth_crap.user, username);
510 if(domain != NULL)
511 fstrcpy(request.data.chng_pswd_auth_crap.domain,domain);
512
513 if(new_nt_pswd.length)
514 {
515 memcpy(request.data.chng_pswd_auth_crap.new_nt_pswd, new_nt_pswd.data, sizeof(request.data.chng_pswd_auth_crap.new_nt_pswd));
516 request.data.chng_pswd_auth_crap.new_nt_pswd_len = new_nt_pswd.length;
517 }
518
519 if(old_nt_hash_enc.length)
520 {
521 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));
522 request.data.chng_pswd_auth_crap.old_nt_hash_enc_len = old_nt_hash_enc.length;
523 }
524
525 if(new_lm_pswd.length)
526 {
527 memcpy(request.data.chng_pswd_auth_crap.new_lm_pswd, new_lm_pswd.data, sizeof(request.data.chng_pswd_auth_crap.new_lm_pswd));
528 request.data.chng_pswd_auth_crap.new_lm_pswd_len = new_lm_pswd.length;
529 }
530
531 if(old_lm_hash_enc.length)
532 {
533 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));
534 request.data.chng_pswd_auth_crap.old_lm_hash_enc_len = old_lm_hash_enc.length;
535 }
536
537 result = winbindd_request_response(WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP, &request, &response);
538
539 /* Display response */
540
541 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0))
542 {
543 nt_status = NT_STATUS_UNSUCCESSFUL;
544 if (error_string)
545 *error_string = smb_xstrdup("Reading winbind reply failed!");
546 winbindd_free_response(&response);
547 return nt_status;
548 }
549
550 nt_status = (NT_STATUS(response.data.auth.nt_status));
551 if (!NT_STATUS_IS_OK(nt_status))
552 {
553 if (error_string)
554 *error_string = smb_xstrdup(response.data.auth.error_string);
555 winbindd_free_response(&response);
556 return nt_status;
557 }
558
559 winbindd_free_response(&response);
560
561 return nt_status;
562 }
563
564 static NTSTATUS winbind_pw_check(struct ntlmssp_state *ntlmssp_state, DATA_BLOB *user_session_key, DATA_BLOB *lm_session_key)
565 {
566 static const char zeros[16] = { 0, };
567 NTSTATUS nt_status;
568 char *error_string = NULL;
569 uint8 lm_key[8];
570 uint8 user_sess_key[16];
571 char *unix_name = NULL;
572
573 nt_status = contact_winbind_auth_crap(ntlmssp_state->user, ntlmssp_state->domain,
574 ntlmssp_state->workstation,
575 &ntlmssp_state->chal,
576 &ntlmssp_state->lm_resp,
577 &ntlmssp_state->nt_resp,
578 WBFLAG_PAM_LMKEY | WBFLAG_PAM_USER_SESSION_KEY | WBFLAG_PAM_UNIX_NAME,
579 lm_key, user_sess_key,
580 &error_string, &unix_name);
581
582 if (NT_STATUS_IS_OK(nt_status)) {
583 if (memcmp(lm_key, zeros, 8) != 0) {
584 *lm_session_key = data_blob_talloc(ntlmssp_state, NULL, 16);
585 memcpy(lm_session_key->data, lm_key, 8);
586 memset(lm_session_key->data+8, '\0', 8);
587 }
588
589 if (memcmp(user_sess_key, zeros, 16) != 0) {
590 *user_session_key = data_blob_talloc(ntlmssp_state, user_sess_key, 16);
591 }
592 ntlmssp_state->auth_context = talloc_strdup(ntlmssp_state,
593 unix_name);
594 } else {
595 DEBUG(NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED) ? 0 : 3,
596 ("Login for user [%s]\\[%s]@[%s] failed due to [%s]\n",
597 ntlmssp_state->domain, ntlmssp_state->user,
598 ntlmssp_state->workstation,
599 error_string ? error_string : "unknown error (NULL)"));
600 ntlmssp_state->auth_context = NULL;
601 }
602
603 SAFE_FREE(error_string);
604 SAFE_FREE(unix_name);
605 return nt_status;
606 }
607
608 static NTSTATUS local_pw_check(struct ntlmssp_state *ntlmssp_state, DATA_BLOB *user_session_key, DATA_BLOB *lm_session_key)
609 {
610 NTSTATUS nt_status;
611 struct samr_Password lm_pw, nt_pw;
612
613 nt_lm_owf_gen (opt_password, nt_pw.hash, lm_pw.hash);
614
615 nt_status = ntlm_password_check(ntlmssp_state,
616 true, true, 0,
617 &ntlmssp_state->chal,
618 &ntlmssp_state->lm_resp,
619 &ntlmssp_state->nt_resp,
620 ntlmssp_state->user,
621 ntlmssp_state->user,
622 ntlmssp_state->domain,
623 &lm_pw, &nt_pw, user_session_key, lm_session_key);
624
625 if (NT_STATUS_IS_OK(nt_status)) {
626 ntlmssp_state->auth_context = talloc_asprintf(ntlmssp_state,
627 "%s%c%s", ntlmssp_state->domain,
628 *lp_winbind_separator(),
629 ntlmssp_state->user);
630 } else {
631 DEBUG(3, ("Login for user [%s]\\[%s]@[%s] failed due to [%s]\n",
632 ntlmssp_state->domain, ntlmssp_state->user, ntlmssp_state->workstation,
633 nt_errstr(nt_status)));
634 ntlmssp_state->auth_context = NULL;
635 }
636 return nt_status;
637 }
638
639 static NTSTATUS ntlm_auth_start_ntlmssp_client(struct ntlmssp_state **client_ntlmssp_state)
640 {
641 NTSTATUS status;
642 if ( (opt_username == NULL) || (opt_domain == NULL) ) {
643 status = NT_STATUS_UNSUCCESSFUL;
644 DEBUG(1, ("Need username and domain for NTLMSSP\n"));
645 return NT_STATUS_INVALID_PARAMETER;
646 }
647
648 status = ntlmssp_client_start(client_ntlmssp_state);
649
650 if (!NT_STATUS_IS_OK(status)) {
651 DEBUG(1, ("Could not start NTLMSSP client: %s\n",
652 nt_errstr(status)));
653 ntlmssp_end(client_ntlmssp_state);
654 return status;
655 }
656
657 status = ntlmssp_set_username(*client_ntlmssp_state, opt_username);
658
659 if (!NT_STATUS_IS_OK(status)) {
660 DEBUG(1, ("Could not set username: %s\n",
661 nt_errstr(status)));
662 ntlmssp_end(client_ntlmssp_state);
663 return status;
664 }
665
666 status = ntlmssp_set_domain(*client_ntlmssp_state, opt_domain);
667
668 if (!NT_STATUS_IS_OK(status)) {
669 DEBUG(1, ("Could not set domain: %s\n",
670 nt_errstr(status)));
671 ntlmssp_end(client_ntlmssp_state);
672 return status;
673 }
674
675 if (opt_password) {
676 status = ntlmssp_set_password(*client_ntlmssp_state, opt_password);
677
678 if (!NT_STATUS_IS_OK(status)) {
679 DEBUG(1, ("Could not set password: %s\n",
680 nt_errstr(status)));
681 ntlmssp_end(client_ntlmssp_state);
682 return status;
683 }
684 }
685
686 return NT_STATUS_OK;
687 }
688
689 static NTSTATUS ntlm_auth_start_ntlmssp_server(struct ntlmssp_state **ntlmssp_state)
690 {
691 NTSTATUS status = ntlmssp_server_start(ntlmssp_state);
692
693 if (!NT_STATUS_IS_OK(status)) {
694 DEBUG(1, ("Could not start NTLMSSP server: %s\n",
695 nt_errstr(status)));
696 return status;
697 }
698
699 /* Have we been given a local password, or should we ask winbind? */
700 if (opt_password) {
701 (*ntlmssp_state)->check_password = local_pw_check;
702 (*ntlmssp_state)->get_domain = lp_workgroup;
703 (*ntlmssp_state)->get_global_myname = global_myname;
704 } else {
705 (*ntlmssp_state)->check_password = winbind_pw_check;
706 (*ntlmssp_state)->get_domain = get_winbind_domain;
707 (*ntlmssp_state)->get_global_myname = get_winbind_netbios_name;
708 }
709 return NT_STATUS_OK;
710 }
711
712 /*******************************************************************
713 Used by firefox to drive NTLM auth to IIS servers.
714 *******************************************************************/
715
716 static NTSTATUS do_ccache_ntlm_auth(DATA_BLOB initial_msg, DATA_BLOB challenge_msg,
717 DATA_BLOB *reply)
718 {
719 struct winbindd_request wb_request;
720 struct winbindd_response wb_response;
721 int ctrl = 0;
722 NSS_STATUS result;
723
724 /* get winbindd to do the ntlmssp step on our behalf */
725 ZERO_STRUCT(wb_request);
726 ZERO_STRUCT(wb_response);
727
728 /*
729 * This is tricky here. If we set krb5_auth in pam_winbind.conf
730 * creds for users in trusted domain will be stored the winbindd
731 * child of the trusted domain. If we ask the primary domain for
732 * ntlm_ccache_auth, it will fail. So, we have to ask the trusted
733 * domain's child for ccache_ntlm_auth. that is to say, we have to
734 * set WBFALG_PAM_CONTACT_TRUSTDOM in request.flags.
735 */
736 ctrl = get_pam_winbind_config();
737
738 if (ctrl | WINBIND_KRB5_AUTH) {
739 wb_request.flags |= WBFLAG_PAM_CONTACT_TRUSTDOM;
740 }
741
742 fstr_sprintf(wb_request.data.ccache_ntlm_auth.user,
743 "%s%c%s", opt_domain, winbind_separator(), opt_username);
744 wb_request.data.ccache_ntlm_auth.uid = geteuid();
745 wb_request.data.ccache_ntlm_auth.initial_blob_len = initial_msg.length;
746 wb_request.data.ccache_ntlm_auth.challenge_blob_len = challenge_msg.length;
747 wb_request.extra_len = initial_msg.length + challenge_msg.length;
748
749 if (wb_request.extra_len > 0) {
750 wb_request.extra_data.data = SMB_MALLOC_ARRAY(char, wb_request.extra_len);
751 if (wb_request.extra_data.data == NULL) {
752 return NT_STATUS_NO_MEMORY;
753 }
754
755 memcpy(wb_request.extra_data.data, initial_msg.data, initial_msg.length);
756 memcpy(wb_request.extra_data.data + initial_msg.length,
757 challenge_msg.data, challenge_msg.length);
758 }
759
760 result = winbindd_request_response(WINBINDD_CCACHE_NTLMAUTH, &wb_request, &wb_response);
761 SAFE_FREE(wb_request.extra_data.data);
762
763 if (result != NSS_STATUS_SUCCESS) {
764 winbindd_free_response(&wb_response);
765 return NT_STATUS_UNSUCCESSFUL;
766 }
767
768 if (reply) {
769 *reply = data_blob(wb_response.extra_data.data,
770 wb_response.data.ccache_ntlm_auth.auth_blob_len);
771 if (wb_response.data.ccache_ntlm_auth.auth_blob_len > 0 &&
772 reply->data == NULL) {
773 winbindd_free_response(&wb_response);
774 return NT_STATUS_NO_MEMORY;
775 }
776 }
777
778 winbindd_free_response(&wb_response);
779 return NT_STATUS_MORE_PROCESSING_REQUIRED;
780 }
781
782 static void manage_squid_ntlmssp_request(struct ntlm_auth_state *state,
783 char *buf, int length)
784 {
785 DATA_BLOB request, reply;
786 NTSTATUS nt_status;
787
788 if (strlen(buf) < 2) {
789 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
790 x_fprintf(x_stdout, "BH NTLMSSP query invalid\n");
791 return;
792 }
793
794 if (strlen(buf) > 3) {
795 if(strncmp(buf, "SF ", 3) == 0){
796 DEBUG(10, ("Setting flags to negotioate\n"));
797 TALLOC_FREE(state->want_feature_list);
798 state->want_feature_list = talloc_strdup(state->mem_ctx,
799 buf+3);
800 x_fprintf(x_stdout, "OK\n");
801 return;
802 }
803 request = base64_decode_data_blob(buf + 3);
804 } else {
805 request = data_blob_null;
806 }
807
808 if ((strncmp(buf, "PW ", 3) == 0)) {
809 /* The calling application wants us to use a local password
810 * (rather than winbindd) */
811
812 opt_password = SMB_STRNDUP((const char *)request.data,
813 request.length);
814
815 if (opt_password == NULL) {
816 DEBUG(1, ("Out of memory\n"));
817 x_fprintf(x_stdout, "BH Out of memory\n");
818 data_blob_free(&request);
819 return;
820 }
821
822 x_fprintf(x_stdout, "OK\n");
823 data_blob_free(&request);
824 return;
825 }
826
827 if (strncmp(buf, "YR", 2) == 0) {
828 if (state->ntlmssp_state)
829 ntlmssp_end(&state->ntlmssp_state);
830 state->svr_state = SERVER_INITIAL;
831 } else if (strncmp(buf, "KK", 2) == 0) {
832 /* No special preprocessing required */
833 } else if (strncmp(buf, "GF", 2) == 0) {
834 DEBUG(10, ("Requested negotiated NTLMSSP flags\n"));
835
836 if (state->svr_state == SERVER_FINISHED) {
837 x_fprintf(x_stdout, "GF 0x%08x\n", state->neg_flags);
838 }
839 else {
840 x_fprintf(x_stdout, "BH\n");
841 }
842 data_blob_free(&request);
843 return;
844 } else if (strncmp(buf, "GK", 2) == 0) {
845 DEBUG(10, ("Requested NTLMSSP session key\n"));
846 if(state->have_session_key) {
847 char *key64 = base64_encode_data_blob(state->mem_ctx,
848 state->session_key);
849 x_fprintf(x_stdout, "GK %s\n", key64?key64:"<NULL>");
850 TALLOC_FREE(key64);
851 } else {
852 x_fprintf(x_stdout, "BH\n");
853 }
854
855 data_blob_free(&request);
856 return;
857 } else {
858 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
859 x_fprintf(x_stdout, "BH NTLMSSP query invalid\n");
860 return;
861 }
862
863 if (!state->ntlmssp_state) {
864 nt_status = ntlm_auth_start_ntlmssp_server(
865 &state->ntlmssp_state);
866 if (!NT_STATUS_IS_OK(nt_status)) {
867 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
868 return;
869 }
870 ntlmssp_want_feature_list(state->ntlmssp_state,
871 state->want_feature_list);
872 }
873
874 DEBUG(10, ("got NTLMSSP packet:\n"));
875 dump_data(10, request.data, request.length);
876
877 nt_status = ntlmssp_update(state->ntlmssp_state, request, &reply);
878
879 if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
880 char *reply_base64 = base64_encode_data_blob(state->mem_ctx,
881 reply);
882 x_fprintf(x_stdout, "TT %s\n", reply_base64);
883 TALLOC_FREE(reply_base64);
884 data_blob_free(&reply);
885 state->svr_state = SERVER_CHALLENGE;
886 DEBUG(10, ("NTLMSSP challenge\n"));
887 } else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED)) {
888 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
889 DEBUG(0, ("NTLMSSP BH: %s\n", nt_errstr(nt_status)));
890
891 ntlmssp_end(&state->ntlmssp_state);
892 } else if (!NT_STATUS_IS_OK(nt_status)) {
893 x_fprintf(x_stdout, "NA %s\n", nt_errstr(nt_status));
894 DEBUG(10, ("NTLMSSP %s\n", nt_errstr(nt_status)));
895 } else {
896 x_fprintf(x_stdout, "AF %s\n",
897 (char *)state->ntlmssp_state->auth_context);
898 DEBUG(10, ("NTLMSSP OK!\n"));
899
900 if(state->have_session_key)
901 data_blob_free(&state->session_key);
902 state->session_key = data_blob(
903 state->ntlmssp_state->session_key.data,
904 state->ntlmssp_state->session_key.length);
905 state->neg_flags = state->ntlmssp_state->neg_flags;
906 state->have_session_key = true;
907 state->svr_state = SERVER_FINISHED;
908 }
909
910 data_blob_free(&request);
911 }
912
913 static void manage_client_ntlmssp_request(struct ntlm_auth_state *state,
914 char *buf, int length)
915 {
916 DATA_BLOB request, reply;
917 NTSTATUS nt_status;
918
919 if (!opt_username || !*opt_username) {
920 x_fprintf(x_stderr, "username must be specified!\n\n");
921 exit(1);
922 }
923
924 if (strlen(buf) < 2) {
925 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
926 x_fprintf(x_stdout, "BH NTLMSSP query invalid\n");
927 return;
928 }
929
930 if (strlen(buf) > 3) {
931 if(strncmp(buf, "SF ", 3) == 0) {
932 DEBUG(10, ("Looking for flags to negotiate\n"));
933 talloc_free(state->want_feature_list);
934 state->want_feature_list = talloc_strdup(state->mem_ctx,
935 buf+3);
936 x_fprintf(x_stdout, "OK\n");
937 return;
938 }
939 request = base64_decode_data_blob(buf + 3);
940 } else {
941 request = data_blob_null;
942 }
943
944 if (strncmp(buf, "PW ", 3) == 0) {
945 /* We asked for a password and obviously got it :-) */
946
947 opt_password = SMB_STRNDUP((const char *)request.data,
948 request.length);
949
950 if (opt_password == NULL) {
951 DEBUG(1, ("Out of memory\n"));
952 x_fprintf(x_stdout, "BH Out of memory\n");
953 data_blob_free(&request);
954 return;
955 }
956
957 x_fprintf(x_stdout, "OK\n");
958 data_blob_free(&request);
959 return;
960 }
961
962 if (!state->ntlmssp_state && use_cached_creds) {
963 /* check whether cached credentials are usable. */
964 DATA_BLOB empty_blob = data_blob_null;
965
966 nt_status = do_ccache_ntlm_auth(empty_blob, empty_blob, NULL);
967 if (!NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
968 /* failed to use cached creds */
969 use_cached_creds = False;
970 }
971 }
972
973 if (opt_password == NULL && !use_cached_creds) {
974 /* Request a password from the calling process. After
975 sending it, the calling process should retry asking for the
976 negotiate. */
977
978 DEBUG(10, ("Requesting password\n"));
979 x_fprintf(x_stdout, "PW\n");
980 return;
981 }
982
983 if (strncmp(buf, "YR", 2) == 0) {
984 if (state->ntlmssp_state)
985 ntlmssp_end(&state->ntlmssp_state);
986 state->cli_state = CLIENT_INITIAL;
987 } else if (strncmp(buf, "TT", 2) == 0) {
988 /* No special preprocessing required */
989 } else if (strncmp(buf, "GF", 2) == 0) {
990 DEBUG(10, ("Requested negotiated NTLMSSP flags\n"));
991
992 if(state->cli_state == CLIENT_FINISHED) {
993 x_fprintf(x_stdout, "GF 0x%08x\n", state->neg_flags);
994 }
995 else {
996 x_fprintf(x_stdout, "BH\n");
997 }
998
999 data_blob_free(&request);
1000 return;
1001 } else if (strncmp(buf, "GK", 2) == 0 ) {
1002 DEBUG(10, ("Requested session key\n"));
1003
1004 if(state->cli_state == CLIENT_FINISHED) {
1005 char *key64 = base64_encode_data_blob(state->mem_ctx,
1006 state->session_key);
1007 x_fprintf(x_stdout, "GK %s\n", key64?key64:"<NULL>");
1008 TALLOC_FREE(key64);
1009 }
1010 else {
1011 x_fprintf(x_stdout, "BH\n");
1012 }
1013
1014 data_blob_free(&request);
1015 return;
1016 } else {
1017 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
1018 x_fprintf(x_stdout, "BH NTLMSSP query invalid\n");
1019 return;
1020 }
1021
1022 if (!state->ntlmssp_state) {
1023 nt_status = ntlm_auth_start_ntlmssp_client(
1024 &state->ntlmssp_state);
1025 if (!NT_STATUS_IS_OK(nt_status)) {
1026 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
1027 return;
1028 }
1029 ntlmssp_want_feature_list(state->ntlmssp_state,
1030 state->want_feature_list);
1031 state->initial_message = data_blob_null;
1032 }
1033
1034 DEBUG(10, ("got NTLMSSP packet:\n"));
1035 dump_data(10, request.data, request.length);
1036
1037 if (use_cached_creds && !opt_password &&
1038 (state->cli_state == CLIENT_RESPONSE)) {
1039 nt_status = do_ccache_ntlm_auth(state->initial_message, request,
1040 &reply);
1041 } else {
1042 nt_status = ntlmssp_update(state->ntlmssp_state, request,
1043 &reply);
1044 }
1045
1046 if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1047 char *reply_base64 = base64_encode_data_blob(state->mem_ctx,
1048 reply);
1049 if (state->cli_state == CLIENT_INITIAL) {
1050 x_fprintf(x_stdout, "YR %s\n", reply_base64);
1051 state->initial_message = reply;
1052 state->cli_state = CLIENT_RESPONSE;
1053 } else {
1054 x_fprintf(x_stdout, "KK %s\n", reply_base64);
1055 data_blob_free(&reply);
1056 }
1057 TALLOC_FREE(reply_base64);
1058 DEBUG(10, ("NTLMSSP challenge\n"));
1059 } else if (NT_STATUS_IS_OK(nt_status)) {
1060 char *reply_base64 = base64_encode_data_blob(talloc_tos(),
1061 reply);
1062 x_fprintf(x_stdout, "AF %s\n", reply_base64);
1063 TALLOC_FREE(reply_base64);
1064
1065 if(state->have_session_key)
1066 data_blob_free(&state->session_key);
1067
1068 state->session_key = data_blob(
1069 state->ntlmssp_state->session_key.data,
1070 state->ntlmssp_state->session_key.length);
1071 state->neg_flags = state->ntlmssp_state->neg_flags;
1072 state->have_session_key = true;
1073
1074 DEBUG(10, ("NTLMSSP OK!\n"));
1075 state->cli_state = CLIENT_FINISHED;
1076 if (state->ntlmssp_state)
1077 ntlmssp_end(&state->ntlmssp_state);
1078 } else {
1079 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
1080 DEBUG(0, ("NTLMSSP BH: %s\n", nt_errstr(nt_status)));
1081 state->cli_state = CLIENT_ERROR;
1082 if (state->ntlmssp_state)
1083 ntlmssp_end(&state->ntlmssp_state);
1084 }
1085
1086 data_blob_free(&request);
1087 }
1088
1089 static void manage_squid_basic_request(struct ntlm_auth_state *state,
1090 char *buf, int length)
1091 {
1092 char *user, *pass;
1093 user=buf;
1094
1095 pass=(char *)memchr(buf,' ',length);
1096 if (!pass) {
1097 DEBUG(2, ("Password not found. Denying access\n"));
1098 x_fprintf(x_stdout, "ERR\n");
1099 return;
1100 }
1101 *pass='\0';
1102 pass++;
1103
1104 if (state->helper_mode == SQUID_2_5_BASIC) {
1105 rfc1738_unescape(user);
1106 rfc1738_unescape(pass);
1107 }
1108
1109 if (check_plaintext_auth(user, pass, False)) {
1110 x_fprintf(x_stdout, "OK\n");
1111 } else {
1112 x_fprintf(x_stdout, "ERR\n");
1113 }
1114 }
1115
1116 static void offer_gss_spnego_mechs(void) {
1117
1118 DATA_BLOB token;
1119 struct spnego_data spnego;
1120 ssize_t len;
1121 char *reply_base64;
1122 TALLOC_CTX *ctx = talloc_tos();
1123 char *principal;
1124 char *myname_lower;
1125
1126 ZERO_STRUCT(spnego);
1127
1128 myname_lower = talloc_strdup(ctx, global_myname());
1129 if (!myname_lower) {
1130 return;
1131 }
1132 strlower_m(myname_lower);
1133
1134 principal = talloc_asprintf(ctx, "%s$@%s", myname_lower, lp_realm());
1135 if (!principal) {
1136 return;
1137 }
1138
1139 /* Server negTokenInit (mech offerings) */
1140 spnego.type = SPNEGO_NEG_TOKEN_INIT;
1141 spnego.negTokenInit.mechTypes = SMB_XMALLOC_ARRAY(const char *, 2);
1142 #ifdef HAVE_KRB5
1143 spnego.negTokenInit.mechTypes[0] = smb_xstrdup(OID_KERBEROS5_OLD);
1144 spnego.negTokenInit.mechTypes[1] = smb_xstrdup(OID_NTLMSSP);
1145 spnego.negTokenInit.mechTypes[2] = NULL;
1146 #else
1147 spnego.negTokenInit.mechTypes[0] = smb_xstrdup(OID_NTLMSSP);
1148 spnego.negTokenInit.mechTypes[1] = NULL;
1149 #endif
1150
1151
1152 spnego.negTokenInit.mechListMIC = data_blob(principal,
1153 strlen(principal));
1154
1155 len = spnego_write_data(ctx, &token, &spnego);
1156 spnego_free_data(&spnego);
1157
1158 if (len == -1) {
1159 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1160 x_fprintf(x_stdout, "BH Could not write SPNEGO data blob\n");
1161 return;
1162 }
1163
1164 reply_base64 = base64_encode_data_blob(talloc_tos(), token);
1165 x_fprintf(x_stdout, "TT %s *\n", reply_base64);
1166
1167 TALLOC_FREE(reply_base64);
1168 data_blob_free(&token);
1169 DEBUG(10, ("sent SPNEGO negTokenInit\n"));
1170 return;
1171 }
1172
1173 static void manage_gss_spnego_request(struct ntlm_auth_state *state,
1174 char *buf, int length)
1175 {
1176 static struct ntlmssp_state *ntlmssp_state = NULL;
1177 struct spnego_data request, response;
1178 DATA_BLOB token;
1179 NTSTATUS status;
1180 ssize_t len;
1181 TALLOC_CTX *ctx = talloc_tos();
1182
1183 char *user = NULL;
1184 char *domain = NULL;
1185
1186 const char *reply_code;
1187 char *reply_base64;
1188 char *reply_argument = NULL;
1189
1190 if (strlen(buf) < 2) {
1191 DEBUG(1, ("SPENGO query [%s] invalid", buf));
1192 x_fprintf(x_stdout, "BH SPENGO query invalid\n");
1193 return;
1194 }
1195
1196 if (strncmp(buf, "YR", 2) == 0) {
1197 if (ntlmssp_state)
1198 ntlmssp_end(&ntlmssp_state);
1199 } else if (strncmp(buf, "KK", 2) == 0) {
1200 ;
1201 } else {
1202 DEBUG(1, ("SPENGO query [%s] invalid", buf));
1203 x_fprintf(x_stdout, "BH SPENGO query invalid\n");
1204 return;
1205 }
1206
1207 if ( (strlen(buf) == 2)) {
1208
1209 /* no client data, get the negTokenInit offering
1210 mechanisms */
1211
1212 offer_gss_spnego_mechs();
1213 return;
1214 }
1215
1216 /* All subsequent requests have a blob. This might be negTokenInit or negTokenTarg */
1217
1218 if (strlen(buf) <= 3) {
1219 DEBUG(1, ("GSS-SPNEGO query [%s] invalid\n", buf));
1220 x_fprintf(x_stdout, "BH GSS-SPNEGO query invalid\n");
1221 return;
1222 }
1223
1224 token = base64_decode_data_blob(buf + 3);
1225 len = spnego_read_data(ctx, token, &request);
1226 data_blob_free(&token);
1227
1228 if (len == -1) {
1229 DEBUG(1, ("GSS-SPNEGO query [%s] invalid", buf));
1230 x_fprintf(x_stdout, "BH GSS-SPNEGO query invalid\n");
1231 return;
1232 }
1233
1234 if (request.type == SPNEGO_NEG_TOKEN_INIT) {
1235
1236 /* Second request from Client. This is where the
1237 client offers its mechanism to use. */
1238
1239 if ( (request.negTokenInit.mechTypes == NULL) ||
1240 (request.negTokenInit.mechTypes[0] == NULL) ) {
1241 DEBUG(1, ("Client did not offer any mechanism"));
1242 x_fprintf(x_stdout, "BH Client did not offer any "
1243 "mechanism\n");
1244 return;
1245 }
1246
1247 status = NT_STATUS_UNSUCCESSFUL;
1248 if (strcmp(request.negTokenInit.mechTypes[0], OID_NTLMSSP) == 0) {
1249
1250 if ( request.negTokenInit.mechToken.data == NULL ) {
1251 DEBUG(1, ("Client did not provide NTLMSSP data\n"));
1252 x_fprintf(x_stdout, "BH Client did not provide "
1253 "NTLMSSP data\n");
1254 return;
1255 }
1256
1257 if ( ntlmssp_state != NULL ) {
1258 DEBUG(1, ("Client wants a new NTLMSSP challenge, but "
1259 "already got one\n"));
1260 x_fprintf(x_stdout, "BH Client wants a new "
1261 "NTLMSSP challenge, but "
1262 "already got one\n");
1263 ntlmssp_end(&ntlmssp_state);
1264 return;
1265 }
1266
1267 if (!NT_STATUS_IS_OK(status = ntlm_auth_start_ntlmssp_server(&ntlmssp_state))) {
1268 x_fprintf(x_stdout, "BH %s\n", nt_errstr(status));
1269 return;
1270 }
1271
1272 DEBUG(10, ("got NTLMSSP packet:\n"));
1273 dump_data(10, request.negTokenInit.mechToken.data,
1274 request.negTokenInit.mechToken.length);
1275
1276 response.type = SPNEGO_NEG_TOKEN_TARG;
1277 response.negTokenTarg.supportedMech = SMB_STRDUP(OID_NTLMSSP);
1278 response.negTokenTarg.mechListMIC = data_blob_null;
1279
1280 status = ntlmssp_update(ntlmssp_state,
1281 request.negTokenInit.mechToken,
1282 &response.negTokenTarg.responseToken);
1283 }
1284
1285 #ifdef HAVE_KRB5
1286 if (strcmp(request.negTokenInit.mechTypes[0], OID_KERBEROS5_OLD) == 0) {
1287
1288 TALLOC_CTX *mem_ctx = talloc_init("manage_gss_spnego_request");
1289 char *principal;
1290 DATA_BLOB ap_rep;
1291 DATA_BLOB session_key;
1292 struct PAC_DATA *pac_data = NULL;
1293
1294 if ( request.negTokenInit.mechToken.data == NULL ) {
1295 DEBUG(1, ("Client did not provide Kerberos data\n"));
1296 x_fprintf(x_stdout, "BH Client did not provide "
1297 "Kerberos data\n");
1298 return;
1299 }
1300
1301 response.type = SPNEGO_NEG_TOKEN_TARG;
1302 response.negTokenTarg.supportedMech = SMB_STRDUP(OID_KERBEROS5_OLD);
1303 response.negTokenTarg.mechListMIC = data_blob_null;
1304 response.negTokenTarg.responseToken = data_blob_null;
1305
1306 status = ads_verify_ticket(mem_ctx, lp_realm(), 0,
1307 &request.negTokenInit.mechToken,
1308 &principal, &pac_data, &ap_rep,
1309 &session_key, True);
1310
1311 /* Now in "principal" we have the name we are
1312 authenticated as. */
1313
1314 if (NT_STATUS_IS_OK(status)) {
1315
1316 domain = strchr_m(principal, '@');
1317
1318 if (domain == NULL) {
1319 DEBUG(1, ("Did not get a valid principal "
1320 "from ads_verify_ticket\n"));
1321 x_fprintf(x_stdout, "BH Did not get a "
1322 "valid principal from "
1323 "ads_verify_ticket\n");
1324 return;
1325 }
1326
1327 *domain++ = '\0';
1328 domain = SMB_STRDUP(domain);
1329 user = SMB_STRDUP(principal);
1330
1331 data_blob_free(&ap_rep);
1332 }
1333
1334 TALLOC_FREE(mem_ctx);
1335 }
1336 #endif
1337
1338 } else {
1339
1340 if ( (request.negTokenTarg.supportedMech == NULL) ||
1341 ( strcmp(request.negTokenTarg.supportedMech, OID_NTLMSSP) != 0 ) ) {
1342 /* Kerberos should never send a negTokenTarg, OID_NTLMSSP
1343 is the only one we support that sends this stuff */
1344 DEBUG(1, ("Got a negTokenTarg for something non-NTLMSSP: %s\n",
1345 request.negTokenTarg.supportedMech));
1346 x_fprintf(x_stdout, "BH Got a negTokenTarg for "
1347 "something non-NTLMSSP\n");
1348 return;
1349 }
1350
1351 if (request.negTokenTarg.responseToken.data == NULL) {
1352 DEBUG(1, ("Got a negTokenTarg without a responseToken!\n"));
1353 x_fprintf(x_stdout, "BH Got a negTokenTarg without a "
1354 "responseToken!\n");
1355 return;
1356 }
1357
1358 status = ntlmssp_update(ntlmssp_state,
1359 request.negTokenTarg.responseToken,
1360 &response.negTokenTarg.responseToken);
1361
1362 response.type = SPNEGO_NEG_TOKEN_TARG;
1363 response.negTokenTarg.supportedMech = SMB_STRDUP(OID_NTLMSSP);
1364 response.negTokenTarg.mechListMIC = data_blob_null;
1365
1366 if (NT_STATUS_IS_OK(status)) {
1367 user = SMB_STRDUP(ntlmssp_state->user);
1368 domain = SMB_STRDUP(ntlmssp_state->domain);
1369 ntlmssp_end(&ntlmssp_state);
1370 }
1371 }
1372
1373 spnego_free_data(&request);
1374
1375 if (NT_STATUS_IS_OK(status)) {
1376 response.negTokenTarg.negResult = SPNEGO_ACCEPT_COMPLETED;
1377 reply_code = "AF";
1378 reply_argument = talloc_asprintf(ctx, "%s\\%s", domain, user);
1379 } else if (NT_STATUS_EQUAL(status,
1380 NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1381 response.negTokenTarg.negResult = SPNEGO_ACCEPT_INCOMPLETE;
1382 reply_code = "TT";
1383 reply_argument = talloc_strdup(ctx, "*");
1384 } else {
1385 response.negTokenTarg.negResult = SPNEGO_REJECT;
1386 reply_code = "NA";
1387 reply_argument = talloc_strdup(ctx, nt_errstr(status));
1388 }
1389
1390 if (!reply_argument) {
1391 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1392 x_fprintf(x_stdout, "BH Could not write SPNEGO data blob\n");
1393 return;
1394 }
1395
1396 SAFE_FREE(user);
1397 SAFE_FREE(domain);
1398
1399 len = spnego_write_data(ctx, &token, &response);
1400 spnego_free_data(&response);
1401
1402 if (len == -1) {
1403 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1404 x_fprintf(x_stdout, "BH Could not write SPNEGO data blob\n");
1405 return;
1406 }
1407
1408 reply_base64 = base64_encode_data_blob(talloc_tos(), token);
1409
1410 x_fprintf(x_stdout, "%s %s %s\n",
1411 reply_code, reply_base64, reply_argument);
1412
1413 TALLOC_FREE(reply_base64);
1414 data_blob_free(&token);
1415
1416 return;
1417 }
1418
1419 static struct ntlmssp_state *client_ntlmssp_state = NULL;
1420
1421 static bool manage_client_ntlmssp_init(struct spnego_data spnego)
1422 {
1423 NTSTATUS status;
1424 DATA_BLOB null_blob = data_blob_null;
1425 DATA_BLOB to_server;
1426 char *to_server_base64;
1427 const char *my_mechs[] = {OID_NTLMSSP, NULL};
1428 TALLOC_CTX *ctx = talloc_tos();
1429
1430 DEBUG(10, ("Got spnego negTokenInit with NTLMSSP\n"));
1431
1432 if (client_ntlmssp_state != NULL) {
1433 DEBUG(1, ("Request for initial SPNEGO request where "
1434 "we already have a state\n"));
1435 return False;
1436 }
1437
1438 if (!client_ntlmssp_state) {
1439 if (!NT_STATUS_IS_OK(status = ntlm_auth_start_ntlmssp_client(&client_ntlmssp_state))) {
1440 x_fprintf(x_stdout, "BH %s\n", nt_errstr(status));
1441 return False;
1442 }
1443 }
1444
1445
1446 if (opt_password == NULL) {
1447
1448 /* Request a password from the calling process. After
1449 sending it, the calling process should retry with
1450 the negTokenInit. */
1451
1452 DEBUG(10, ("Requesting password\n"));
1453 x_fprintf(x_stdout, "PW\n");
1454 return True;
1455 }
1456
1457 spnego.type = SPNEGO_NEG_TOKEN_INIT;
1458 spnego.negTokenInit.mechTypes = my_mechs;
1459 spnego.negTokenInit.reqFlags = data_blob_null;
1460 spnego.negTokenInit.reqFlagsPadding = 0;
1461 spnego.negTokenInit.mechListMIC = null_blob;
1462
1463 status = ntlmssp_update(client_ntlmssp_state, null_blob,
1464 &spnego.negTokenInit.mechToken);
1465
1466 if ( !(NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED) ||
1467 NT_STATUS_IS_OK(status)) ) {
1468 DEBUG(1, ("Expected OK or MORE_PROCESSING_REQUIRED, got: %s\n",
1469 nt_errstr(status)));
1470 ntlmssp_end(&client_ntlmssp_state);
1471 return False;
1472 }
1473
1474 spnego_write_data(ctx, &to_server, &spnego);
1475 data_blob_free(&spnego.negTokenInit.mechToken);
1476
1477 to_server_base64 = base64_encode_data_blob(talloc_tos(), to_server);
1478 data_blob_free(&to_server);
1479 x_fprintf(x_stdout, "KK %s\n", to_server_base64);
1480 TALLOC_FREE(to_server_base64);
1481 return True;
1482 }
1483
1484 static void manage_client_ntlmssp_targ(struct spnego_data spnego)
1485 {
1486 NTSTATUS status;
1487 DATA_BLOB null_blob = data_blob_null;
1488 DATA_BLOB request;
1489 DATA_BLOB to_server;
1490 char *to_server_base64;
1491 TALLOC_CTX *ctx = talloc_tos();
1492
1493 DEBUG(10, ("Got spnego negTokenTarg with NTLMSSP\n"));
1494
1495 if (client_ntlmssp_state == NULL) {
1496 DEBUG(1, ("Got NTLMSSP tArg without a client state\n"));
1497 x_fprintf(x_stdout, "BH Got NTLMSSP tArg without a client state\n");
1498 return;
1499 }
1500
1501 if (spnego.negTokenTarg.negResult == SPNEGO_REJECT) {
1502 x_fprintf(x_stdout, "NA\n");
1503 ntlmssp_end(&client_ntlmssp_state);
1504 return;
1505 }
1506
1507 if (spnego.negTokenTarg.negResult == SPNEGO_ACCEPT_COMPLETED) {
1508 x_fprintf(x_stdout, "AF\n");
1509 ntlmssp_end(&client_ntlmssp_state);
1510 return;
1511 }
1512
1513 status = ntlmssp_update(client_ntlmssp_state,
1514 spnego.negTokenTarg.responseToken,
1515 &request);
1516
1517 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1518 DEBUG(1, ("Expected MORE_PROCESSING_REQUIRED from "
1519 "ntlmssp_client_update, got: %s\n",
1520 nt_errstr(status)));
1521 x_fprintf(x_stdout, "BH Expected MORE_PROCESSING_REQUIRED from "
1522 "ntlmssp_client_update\n");
1523 data_blob_free(&request);
1524 ntlmssp_end(&client_ntlmssp_state);
1525 return;
1526 }
1527
1528 spnego.type = SPNEGO_NEG_TOKEN_TARG;
1529 spnego.negTokenTarg.negResult = SPNEGO_ACCEPT_INCOMPLETE;
1530 spnego.negTokenTarg.supportedMech = (char *)OID_NTLMSSP;
1531 spnego.negTokenTarg.responseToken = request;
1532 spnego.negTokenTarg.mechListMIC = null_blob;
1533
1534 spnego_write_data(ctx, &to_server, &spnego);
1535 data_blob_free(&request);
1536
1537 to_server_base64 = base64_encode_data_blob(talloc_tos(), to_server);
1538 data_blob_free(&to_server);
1539 x_fprintf(x_stdout, "KK %s\n", to_server_base64);
1540 TALLOC_FREE(to_server_base64);
1541 return;
1542 }
1543
1544 #ifdef HAVE_KRB5
1545
1546 static bool manage_client_krb5_init(struct spnego_data spnego)
1547 {
1548 char *principal;
1549 DATA_BLOB tkt, to_server;
1550 DATA_BLOB session_key_krb5 = data_blob_null;
1551 struct spnego_data reply;
1552 char *reply_base64;
1553 int retval;
1554
1555 const char *my_mechs[] = {OID_KERBEROS5_OLD, NULL};
1556 ssize_t len;
1557 TALLOC_CTX *ctx = talloc_tos();
1558
1559 if ( (spnego.negTokenInit.mechListMIC.data == NULL) ||
1560 (spnego.negTokenInit.mechListMIC.length == 0) ) {
1561 DEBUG(1, ("Did not get a principal for krb5\n"));
1562 return False;
1563 }
1564
1565 principal = (char *)SMB_MALLOC(
1566 spnego.negTokenInit.mechListMIC.length+1);
1567
1568 if (principal == NULL) {
1569 DEBUG(1, ("Could not malloc principal\n"));
1570 return False;
1571 }
1572
1573 memcpy(principal, spnego.negTokenInit.mechListMIC.data,
1574 spnego.negTokenInit.mechListMIC.length);
1575 principal[spnego.negTokenInit.mechListMIC.length] = '\0';
1576
1577 retval = cli_krb5_get_ticket(principal, 0, &tkt, &session_key_krb5, 0, NULL, NULL, NULL);
1578
1579 if (retval) {
1580 char *user = NULL;
1581
1582 /* Let's try to first get the TGT, for that we need a
1583 password. */
1584
1585 if (opt_password == NULL) {
1586 DEBUG(10, ("Requesting password\n"));
1587 x_fprintf(x_stdout, "PW\n");
1588 return True;
1589 }
1590
1591 user = talloc_asprintf(talloc_tos(), "%s@%s", opt_username, opt_domain);
1592 if (!user) {
1593 return false;
1594 }
1595
1596 if ((retval = kerberos_kinit_password(user, opt_password, 0, NULL))) {
1597 DEBUG(10, ("Requesting TGT failed: %s\n", error_message(retval)));
1598 return False;
1599 }
1600
1601 retval = cli_krb5_get_ticket(principal, 0, &tkt, &session_key_krb5, 0, NULL, NULL, NULL);
1602
1603 if (retval) {
1604 DEBUG(10, ("Kinit suceeded, but getting a ticket failed: %s\n", error_message(retval)));
1605 return False;
1606 }
1607 }
1608
1609 data_blob_free(&session_key_krb5);
1610
1611 ZERO_STRUCT(reply);
1612
1613 reply.type = SPNEGO_NEG_TOKEN_INIT;
1614 reply.negTokenInit.mechTypes = my_mechs;
1615 reply.negTokenInit.reqFlags = data_blob_null;
1616 reply.negTokenInit.reqFlagsPadding = 0;
1617 reply.negTokenInit.mechToken = tkt;
1618 reply.negTokenInit.mechListMIC = data_blob_null;
1619
1620 len = spnego_write_data(ctx, &to_server, &reply);
1621 data_blob_free(&tkt);
1622
1623 if (len == -1) {
1624 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1625 return False;
1626 }
1627
1628 reply_base64 = base64_encode_data_blob(talloc_tos(), to_server);
1629 x_fprintf(x_stdout, "KK %s *\n", reply_base64);
1630
1631 TALLOC_FREE(reply_base64);
1632 data_blob_free(&to_server);
1633 DEBUG(10, ("sent GSS-SPNEGO KERBEROS5 negTokenInit\n"));
1634 return True;
1635 }
1636
1637 static void manage_client_krb5_targ(struct spnego_data spnego)
1638 {
1639 switch (spnego.negTokenTarg.negResult) {
1640 case SPNEGO_ACCEPT_INCOMPLETE:
1641 DEBUG(1, ("Got a Kerberos negTokenTarg with ACCEPT_INCOMPLETE\n"));
1642 x_fprintf(x_stdout, "BH Got a Kerberos negTokenTarg with "
1643 "ACCEPT_INCOMPLETE\n");
1644 break;
1645 case SPNEGO_ACCEPT_COMPLETED:
1646 DEBUG(10, ("Accept completed\n"));
1647 x_fprintf(x_stdout, "AF\n");
1648 break;
1649 case SPNEGO_REJECT:
1650 DEBUG(10, ("Rejected\n"));
1651 x_fprintf(x_stdout, "NA\n");
1652 break;
1653 default:
1654 DEBUG(1, ("Got an invalid negTokenTarg\n"));
1655 x_fprintf(x_stdout, "AF\n");
1656 }
1657 }
1658
1659 #endif
1660
1661 static void manage_gss_spnego_client_request(struct ntlm_auth_state *state,
1662 char *buf, int length)
1663 {
1664 DATA_BLOB request;
1665 struct spnego_data spnego;
1666 ssize_t len;
1667 TALLOC_CTX *ctx = talloc_tos();
1668
1669 if (!opt_username || !*opt_username) {
1670 x_fprintf(x_stderr, "username must be specified!\n\n");
1671 exit(1);
1672 }
1673
1674 if (strlen(buf) <= 3) {
1675 DEBUG(1, ("SPNEGO query [%s] too short\n", buf));
1676 x_fprintf(x_stdout, "BH SPNEGO query too short\n");
1677 return;
1678 }
1679
1680 request = base64_decode_data_blob(buf+3);
1681
1682 if (strncmp(buf, "PW ", 3) == 0) {
1683
1684 /* We asked for a password and obviously got it :-) */
1685
1686 opt_password = SMB_STRNDUP((const char *)request.data, request.length);
1687
1688 if (opt_password == NULL) {
1689 DEBUG(1, ("Out of memory\n"));
1690 x_fprintf(x_stdout, "BH Out of memory\n");
1691 data_blob_free(&request);
1692 return;
1693 }
1694
1695 x_fprintf(x_stdout, "OK\n");
1696 data_blob_free(&request);
1697 return;
1698 }
1699
1700 if ( (strncmp(buf, "TT ", 3) != 0) &&
1701 (strncmp(buf, "AF ", 3) != 0) &&
1702 (strncmp(buf, "NA ", 3) != 0) ) {
1703 DEBUG(1, ("SPNEGO request [%s] invalid\n", buf));
1704 x_fprintf(x_stdout, "BH SPNEGO request invalid\n");
1705 data_blob_free(&request);
1706 return;
1707 }
1708
1709 /* So we got a server challenge to generate a SPNEGO
1710 client-to-server request... */
1711
1712 len = spnego_read_data(ctx, request, &spnego);
1713 data_blob_free(&request);
1714
1715 if (len == -1) {
1716 DEBUG(1, ("Could not read SPNEGO data for [%s]\n", buf));
1717 x_fprintf(x_stdout, "BH Could not read SPNEGO data\n");
1718 return;
1719 }
1720
1721 if (spnego.type == SPNEGO_NEG_TOKEN_INIT) {
1722
1723 /* The server offers a list of mechanisms */
1724
1725 const char **mechType = (const char **)spnego.negTokenInit.mechTypes;
1726
1727 while (*mechType != NULL) {
1728
1729 #ifdef HAVE_KRB5
1730 if ( (strcmp(*mechType, OID_KERBEROS5_OLD) == 0) ||
1731 (strcmp(*mechType, OID_KERBEROS5) == 0) ) {
1732 if (manage_client_krb5_init(spnego))
1733 goto out;
1734 }
1735 #endif
1736
1737 if (strcmp(*mechType, OID_NTLMSSP) == 0) {
1738 if (manage_client_ntlmssp_init(spnego))
1739 goto out;
1740 }
1741
1742 mechType++;
1743 }
1744
1745 DEBUG(1, ("Server offered no compatible mechanism\n"));
1746 x_fprintf(x_stdout, "BH Server offered no compatible mechanism\n");
1747 return;
1748 }
1749
1750 if (spnego.type == SPNEGO_NEG_TOKEN_TARG) {
1751
1752 if (spnego.negTokenTarg.supportedMech == NULL) {
1753 /* On accept/reject Windows does not send the
1754 mechanism anymore. Handle that here and
1755 shut down the mechanisms. */
1756
1757 switch (spnego.negTokenTarg.negResult) {
1758 case SPNEGO_ACCEPT_COMPLETED:
1759 x_fprintf(x_stdout, "AF\n");
1760 break;
1761 case SPNEGO_REJECT:
1762 x_fprintf(x_stdout, "NA\n");
1763 break;
1764 default:
1765 DEBUG(1, ("Got a negTokenTarg with no mech and an "
1766 "unknown negResult: %d\n",
1767 spnego.negTokenTarg.negResult));
1768 x_fprintf(x_stdout, "BH Got a negTokenTarg with"
1769 " no mech and an unknown "
1770 "negResult\n");
1771 }
1772
1773 ntlmssp_end(&client_ntlmssp_state);
1774 goto out;
1775 }
1776
1777 if (strcmp(spnego.negTokenTarg.supportedMech,
1778 OID_NTLMSSP) == 0) {
1779 manage_client_ntlmssp_targ(spnego);
1780 goto out;
1781 }
1782
1783 #if HAVE_KRB5
1784 if (strcmp(spnego.negTokenTarg.supportedMech,
1785 OID_KERBEROS5_OLD) == 0) {
1786 manage_client_krb5_targ(spnego);
1787 goto out;
1788 }
1789 #endif
1790
1791 }
1792
1793 DEBUG(1, ("Got an SPNEGO token I could not handle [%s]!\n", buf));
1794 x_fprintf(x_stdout, "BH Got an SPNEGO token I could not handle\n");
1795 return;
1796
1797 out:
1798 spnego_free_data(&spnego);
1799 return;
1800 }
1801
1802 static void manage_ntlm_server_1_request(struct ntlm_auth_state *state,
1803 char *buf, int length)
1804 {
1805 char *request, *parameter;
1806 static DATA_BLOB challenge;
1807 static DATA_BLOB lm_response;
1808 static DATA_BLOB nt_response;
1809 static char *full_username;
1810 static char *username;
1811 static char *domain;
1812 static char *plaintext_password;
1813 static bool ntlm_server_1_user_session_key;
1814 static bool ntlm_server_1_lm_session_key;
1815
1816 if (strequal(buf, ".")) {
1817 if (!full_username && !username) {
1818 x_fprintf(x_stdout, "Error: No username supplied!\n");
1819 } else if (plaintext_password) {
1820 /* handle this request as plaintext */
1821 if (!full_username) {
1822 if (asprintf(&full_username, "%s%c%s", domain, winbind_separator(), username) == -1) {
1823 x_fprintf(x_stdout, "Error: Out of memory in asprintf!\n.\n");
1824 return;
1825 }
1826 }
1827 if (check_plaintext_auth(full_username, plaintext_password, False)) {
1828 x_fprintf(x_stdout, "Authenticated: Yes\n");
1829 } else {
1830 x_fprintf(x_stdout, "Authenticated: No\n");
1831 }
1832 } else if (!lm_response.data && !nt_response.data) {
1833 x_fprintf(x_stdout, "Error: No password supplied!\n");
1834 } else if (!challenge.data) {
1835 x_fprintf(x_stdout, "Error: No lanman-challenge supplied!\n");
1836 } else {
1837 char *error_string = NULL;
1838 uchar lm_key[8];
1839 uchar user_session_key[16];
1840 uint32 flags = 0;
1841
1842 if (full_username && !username) {
1843 fstring fstr_user;
1844 fstring fstr_domain;
1845
1846 if (!parse_ntlm_auth_domain_user(full_username, fstr_user, fstr_domain)) {
1847 /* username might be 'tainted', don't print into our new-line deleimianted stream */
1848 x_fprintf(x_stdout, "Error: Could not parse into domain and username\n");
1849 }
1850 SAFE_FREE(username);
1851 SAFE_FREE(domain);
1852 username = smb_xstrdup(fstr_user);
1853 domain = smb_xstrdup(fstr_domain);
1854 }
1855
1856 if (!domain) {
1857 domain = smb_xstrdup(get_winbind_domain());
1858 }
1859
1860 if (ntlm_server_1_lm_session_key)
1861 flags |= WBFLAG_PAM_LMKEY;
1862
1863 if (ntlm_server_1_user_session_key)
1864 flags |= WBFLAG_PAM_USER_SESSION_KEY;
1865
1866 if (!NT_STATUS_IS_OK(
1867 contact_winbind_auth_crap(username,
1868 domain,
1869 global_myname(),
1870 &challenge,
1871 &lm_response,
1872 &nt_response,
1873 flags,
1874 lm_key,
1875 user_session_key,
1876 &error_string,
1877 NULL))) {
1878
1879 x_fprintf(x_stdout, "Authenticated: No\n");
1880 x_fprintf(x_stdout, "Authentication-Error: %s\n.\n", error_string);
1881 } else {
1882 static char zeros[16];
1883 char *hex_lm_key;
1884 char *hex_user_session_key;
1885
1886 x_fprintf(x_stdout, "Authenticated: Yes\n");
1887
1888 if (ntlm_server_1_lm_session_key
1889 && (memcmp(zeros, lm_key,
1890 sizeof(lm_key)) != 0)) {
1891 hex_lm_key = hex_encode_talloc(NULL,
1892 (const unsigned char *)lm_key,
1893 sizeof(lm_key));
1894 x_fprintf(x_stdout, "LANMAN-Session-Key: %s\n", hex_lm_key);
1895 TALLOC_FREE(hex_lm_key);
1896 }
1897
1898 if (ntlm_server_1_user_session_key
1899 && (memcmp(zeros, user_session_key,
1900 sizeof(user_session_key)) != 0)) {
1901 hex_user_session_key = hex_encode_talloc(NULL,
1902 (const unsigned char *)user_session_key,
1903 sizeof(user_session_key));
1904 x_fprintf(x_stdout, "User-Session-Key: %s\n", hex_user_session_key);
1905 TALLOC_FREE(hex_user_session_key);
1906 }
1907 }
1908 SAFE_FREE(error_string);
1909 }
1910 /* clear out the state */
1911 challenge = data_blob_null;
1912 nt_response = data_blob_null;
1913 lm_response = data_blob_null;
1914 SAFE_FREE(full_username);
1915 SAFE_FREE(username);
1916 SAFE_FREE(domain);
1917 SAFE_FREE(plaintext_password);
1918 ntlm_server_1_user_session_key = False;
1919 ntlm_server_1_lm_session_key = False;
1920 x_fprintf(x_stdout, ".\n");
1921
1922 return;
1923 }
1924
1925 request = buf;
1926
1927 /* Indicates a base64 encoded structure */
1928 parameter = strstr_m(request, ":: ");
1929 if (!parameter) {
1930 parameter = strstr_m(request, ": ");
1931
1932 if (!parameter) {
1933 DEBUG(0, ("Parameter not found!\n"));
1934 x_fprintf(x_stdout, "Error: Parameter not found!\n.\n");
1935 return;
1936 }
1937
1938 parameter[0] ='\0';
1939 parameter++;
1940 parameter[0] ='\0';
1941 parameter++;
1942
1943 } else {
1944 parameter[0] ='\0';
1945 parameter++;
1946 parameter[0] ='\0';
1947 parameter++;
1948 parameter[0] ='\0';
1949 parameter++;
1950
1951 base64_decode_inplace(parameter);
1952 }
1953
1954 if (strequal(request, "LANMAN-Challenge")) {
1955 challenge = strhex_to_data_blob(NULL, parameter);
1956 if (challenge.length != 8) {
1957 x_fprintf(x_stdout, "Error: hex decode of %s failed! (got %d bytes, expected 8)\n.\n",
1958 parameter,
1959 (int)challenge.length);
1960 challenge = data_blob_null;
1961 }
1962 } else if (strequal(request, "NT-Response")) {
1963 nt_response = strhex_to_data_blob(NULL, parameter);
1964 if (nt_response.length < 24) {
1965 x_fprintf(x_stdout, "Error: hex decode of %s failed! (only got %d bytes, needed at least 24)\n.\n",
1966 parameter,
1967 (int)nt_response.length);
1968 nt_response = data_blob_null;
1969 }
1970 } else if (strequal(request, "LANMAN-Response")) {
1971 lm_response = strhex_to_data_blob(NULL, parameter);
1972 if (lm_response.length != 24) {
1973 x_fprintf(x_stdout, "Error: hex decode of %s failed! (got %d bytes, expected 24)\n.\n",
1974 parameter,
1975 (int)lm_response.length);
1976 lm_response = data_blob_null;
1977 }
1978 } else if (strequal(request, "Password")) {
1979 plaintext_password = smb_xstrdup(parameter);
1980 } else if (strequal(request, "NT-Domain")) {
1981 domain = smb_xstrdup(parameter);
1982 } else if (strequal(request, "Username")) {
1983 username = smb_xstrdup(parameter);
1984 } else if (strequal(request, "Full-Username")) {
1985 full_username = smb_xstrdup(parameter);
1986 } else if (strequal(request, "Request-User-Session-Key")) {
1987 ntlm_server_1_user_session_key = strequal(parameter, "Yes");
1988 } else if (strequal(request, "Request-LanMan-Session-Key")) {
1989 ntlm_server_1_lm_session_key = strequal(parameter, "Yes");
1990 } else {
1991 x_fprintf(x_stdout, "Error: Unknown request %s\n.\n", request);
1992 }
1993 }
1994
1995 static void manage_ntlm_change_password_1_request(struct ntlm_auth_state *state,
1996 char *buf, int length)
1997 {
1998 char *request, *parameter;
1999 static DATA_BLOB new_nt_pswd;
2000 static DATA_BLOB old_nt_hash_enc;
2001 static DATA_BLOB new_lm_pswd;
2002 static DATA_BLOB old_lm_hash_enc;
2003 static char *full_username = NULL;
2004 static char *username = NULL;
2005 static char *domain = NULL;
2006 static char *newpswd = NULL;
2007 static char *oldpswd = NULL;
2008
2009 if (strequal(buf, ".")) {
2010 if(newpswd && oldpswd) {
2011 uchar old_nt_hash[16];
2012 uchar old_lm_hash[16];
2013 uchar new_nt_hash[16];
2014 uchar new_lm_hash[16];
2015
2016 new_nt_pswd = data_blob(NULL, 516);
2017 old_nt_hash_enc = data_blob(NULL, 16);
2018
2019 /* Calculate the MD4 hash (NT compatible) of the
2020 * password */
2021 E_md4hash(oldpswd, old_nt_hash);
2022 E_md4hash(newpswd, new_nt_hash);
2023
2024 /* E_deshash returns false for 'long'
2025 passwords (> 14 DOS chars).
2026
2027 Therefore, don't send a buffer
2028 encrypted with the truncated hash
2029 (it could allow an even easier
2030 attack on the password)
2031
2032 Likewise, obey the admin's restriction
2033 */
2034
2035 if (lp_client_lanman_auth() &&
2036 E_deshash(newpswd, new_lm_hash) &&
2037 E_deshash(oldpswd, old_lm_hash)) {
2038 new_lm_pswd = data_blob(NULL, 516);
2039 old_lm_hash_enc = data_blob(NULL, 16);
2040 encode_pw_buffer(new_lm_pswd.data, newpswd,
2041 STR_UNICODE);
2042
2043 arcfour_crypt(new_lm_pswd.data, old_nt_hash, 516);
2044 E_old_pw_hash(new_nt_hash, old_lm_hash,
2045 old_lm_hash_enc.data);
2046 } else {
2047 new_lm_pswd.data = NULL;
2048 new_lm_pswd.length = 0;
2049 old_lm_hash_enc.data = NULL;
2050 old_lm_hash_enc.length = 0;
2051 }
2052
2053 encode_pw_buffer(new_nt_pswd.data, newpswd,
2054 STR_UNICODE);
2055
2056 arcfour_crypt(new_nt_pswd.data, old_nt_hash, 516);
2057 E_old_pw_hash(new_nt_hash, old_nt_hash,
2058 old_nt_hash_enc.data);
2059 }
2060
2061 if (!full_username && !username) {
2062 x_fprintf(x_stdout, "Error: No username supplied!\n");
2063 } else if ((!new_nt_pswd.data || !old_nt_hash_enc.data) &&
2064 (!new_lm_pswd.data || old_lm_hash_enc.data) ) {
2065 x_fprintf(x_stdout, "Error: No NT or LM password "
2066 "blobs supplied!\n");
2067 } else {
2068 char *error_string = NULL;
2069
2070 if (full_username && !username) {
2071 fstring fstr_user;
2072 fstring fstr_domain;
2073
2074 if (!parse_ntlm_auth_domain_user(full_username,
2075 fstr_user,
2076 fstr_domain)) {
2077 /* username might be 'tainted', don't
2078 * print into our new-line
2079 * deleimianted stream */
2080 x_fprintf(x_stdout, "Error: Could not "
2081 "parse into domain and "
2082 "username\n");
2083 SAFE_FREE(username);
2084 username = smb_xstrdup(full_username);
2085 } else {
2086 SAFE_FREE(username);
2087 SAFE_FREE(domain);
2088 username = smb_xstrdup(fstr_user);
2089 domain = smb_xstrdup(fstr_domain);
2090 }
2091
2092 }
2093
2094 if(!NT_STATUS_IS_OK(contact_winbind_change_pswd_auth_crap(
2095 username, domain,
2096 new_nt_pswd,
2097 old_nt_hash_enc,
2098 new_lm_pswd,
2099 old_lm_hash_enc,
2100 &error_string))) {
2101 x_fprintf(x_stdout, "Password-Change: No\n");
2102 x_fprintf(x_stdout, "Password-Change-Error: "
2103 "%s\n.\n", error_string);
2104 } else {
2105 x_fprintf(x_stdout, "Password-Change: Yes\n");
2106 }
2107
2108 SAFE_FREE(error_string);
2109 }
2110 /* clear out the state */
2111 new_nt_pswd = data_blob_null;
2112 old_nt_hash_enc = data_blob_null;
2113 new_lm_pswd = data_blob_null;
2114 old_nt_hash_enc = data_blob_null;
2115 SAFE_FREE(full_username);
2116 SAFE_FREE(username);
2117 SAFE_FREE(domain);
2118 SAFE_FREE(newpswd);
2119 SAFE_FREE(oldpswd);
2120 x_fprintf(x_stdout, ".\n");
2121
2122 return;
2123 }
2124
2125 request = buf;
2126
2127 /* Indicates a base64 encoded structure */
2128 parameter = strstr_m(request, ":: ");
2129 if (!parameter) {
2130 parameter = strstr_m(request, ": ");
2131
2132 if (!parameter) {
2133 DEBUG(0, ("Parameter not found!\n"));
2134 x_fprintf(x_stdout, "Error: Parameter not found!\n.\n");
2135 return;
2136 }
2137
2138 parameter[0] ='\0';
2139 parameter++;
2140 parameter[0] ='\0';
2141 parameter++;
2142 } else {
2143 parameter[0] ='\0';
2144 parameter++;
2145 parameter[0] ='\0';
2146 parameter++;
2147 parameter[0] ='\0';
2148 parameter++;
2149
2150 base64_decode_inplace(parameter);
2151 }
2152
2153 if (strequal(request, "new-nt-password-blob")) {
2154 new_nt_pswd = strhex_to_data_blob(NULL, parameter);
2155 if (new_nt_pswd.length != 516) {
2156 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2157 "(got %d bytes, expected 516)\n.\n",
2158 parameter,
2159 (int)new_nt_pswd.length);
2160 new_nt_pswd = data_blob_null;
2161 }
2162 } else if (strequal(request, "old-nt-hash-blob")) {
2163 old_nt_hash_enc = strhex_to_data_blob(NULL, parameter);
2164 if (old_nt_hash_enc.length != 16) {
2165 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2166 "(got %d bytes, expected 16)\n.\n",
2167 parameter,
2168 (int)old_nt_hash_enc.length);
2169 old_nt_hash_enc = data_blob_null;
2170 }
2171 } else if (strequal(request, "new-lm-password-blob")) {
2172 new_lm_pswd = strhex_to_data_blob(NULL, parameter);
2173 if (new_lm_pswd.length != 516) {
2174 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2175 "(got %d bytes, expected 516)\n.\n",
2176 parameter,
2177 (int)new_lm_pswd.length);
2178 new_lm_pswd = data_blob_null;
2179 }
2180 }
2181 else if (strequal(request, "old-lm-hash-blob")) {
2182 old_lm_hash_enc = strhex_to_data_blob(NULL, parameter);
2183 if (old_lm_hash_enc.length != 16)
2184 {
2185 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2186 "(got %d bytes, expected 16)\n.\n",
2187 parameter,
2188 (int)old_lm_hash_enc.length);
2189 old_lm_hash_enc = data_blob_null;
2190 }
2191 } else if (strequal(request, "nt-domain")) {
2192 domain = smb_xstrdup(parameter);
2193 } else if(strequal(request, "username")) {
2194 username = smb_xstrdup(parameter);
2195 } else if(strequal(request, "full-username")) {
2196 username = smb_xstrdup(parameter);
2197 } else if(strequal(request, "new-password")) {
2198 newpswd = smb_xstrdup(parameter);
2199 } else if (strequal(request, "old-password")) {
2200 oldpswd = smb_xstrdup(parameter);
2201 } else {
2202 x_fprintf(x_stdout, "Error: Unknown request %s\n.\n", request);
2203 }
2204 }
2205
2206 static void manage_squid_request(struct ntlm_auth_state *state,
2207 stdio_helper_function fn)
2208 {
2209 char *buf;
2210 char tmp[INITIAL_BUFFER_SIZE+1];
2211 int length, buf_size = 0;
2212 char *c;
2213
2214 buf = talloc_strdup(state->mem_ctx, "");
2215 if (!buf) {
2216 DEBUG(0, ("Failed to allocate input buffer.\n"));
2217 x_fprintf(x_stderr, "ERR\n");
2218 exit(1);
2219 }
2220
2221 do {
2222
2223 /* this is not a typo - x_fgets doesn't work too well under
2224 * squid */
2225 if (fgets(tmp, sizeof(tmp)-1, stdin) == NULL) {
2226 if (ferror(stdin)) {
2227 DEBUG(1, ("fgets() failed! dying..... errno=%d "
2228 "(%s)\n", ferror(stdin),
2229 strerror(ferror(stdin))));
2230
2231 exit(1);
2232 }
2233 exit(0);
2234 }
2235
2236 buf = talloc_strdup_append_buffer(buf, tmp);
2237 buf_size += INITIAL_BUFFER_SIZE;
2238
2239 if (buf_size > MAX_BUFFER_SIZE) {
2240 DEBUG(2, ("Oversized message\n"));
2241 x_fprintf(x_stderr, "ERR\n");
2242 talloc_free(buf);
2243 return;
2244 }
2245
2246 c = strchr(buf, '\n');
2247 } while (c == NULL);
2248
2249 *c = '\0';
2250 length = c-buf;
2251
2252 DEBUG(10, ("Got '%s' from squid (length: %d).\n",buf,length));
2253
2254 if (buf[0] == '\0') {
2255 DEBUG(2, ("Invalid Request\n"));
2256 x_fprintf(x_stderr, "ERR\n");
2257 talloc_free(buf);
2258 return;
2259 }
2260
2261 fn(state, buf, length);
2262 talloc_free(buf);
2263 }
2264
2265
2266 static void squid_stream(enum stdio_helper_mode stdio_mode, stdio_helper_function fn) {
2267 TALLOC_CTX *mem_ctx;
2268 struct ntlm_auth_state *state;
2269
2270 /* initialize FDescs */
2271 x_setbuf(x_stdout, NULL);
2272 x_setbuf(x_stderr, NULL);
2273
2274 mem_ctx = talloc_init("ntlm_auth");
2275 if (!mem_ctx) {
2276 DEBUG(0, ("squid_stream: Failed to create talloc context\n"));
2277 x_fprintf(x_stderr, "ERR\n");
2278 exit(1);
2279 }
2280
2281 state = talloc_zero(mem_ctx, struct ntlm_auth_state);
2282 if (!state) {
2283 DEBUG(0, ("squid_stream: Failed to talloc ntlm_auth_state\n"));
2284 x_fprintf(x_stderr, "ERR\n");
2285 exit(1);
2286 }
2287
2288 state->mem_ctx = mem_ctx;
2289 state->helper_mode = stdio_mode;
2290
2291 while(1) {
2292 manage_squid_request(state, fn);
2293 }
2294 }
2295
2296
2297 /* Authenticate a user with a challenge/response */
2298
2299 static bool check_auth_crap(void)
2300 {
2301 NTSTATUS nt_status;
2302 uint32 flags = 0;
2303 char lm_key[8];
2304 char user_session_key[16];
2305 char *hex_lm_key;
2306 char *hex_user_session_key;
2307 char *error_string;
2308 static uint8 zeros[16];
2309
2310 x_setbuf(x_stdout, NULL);
2311
2312 if (request_lm_key)
2313 flags |= WBFLAG_PAM_LMKEY;
2314
2315 if (request_user_session_key)
2316 flags |= WBFLAG_PAM_USER_SESSION_KEY;
2317
2318 flags |= WBFLAG_PAM_NT_STATUS_SQUASH;
2319
2320 nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
2321 opt_workstation,
2322 &opt_challenge,
2323 &opt_lm_response,
2324 &opt_nt_response,
2325 flags,
2326 (unsigned char *)lm_key,
2327 (unsigned char *)user_session_key,
2328 &error_string, NULL);
2329
2330 if (!NT_STATUS_IS_OK(nt_status)) {
2331 x_fprintf(x_stdout, "%s (0x%x)\n",
2332 error_string,
2333 NT_STATUS_V(nt_status));
2334 SAFE_FREE(error_string);
2335 return False;
2336 }
2337
2338 if (request_lm_key
2339 && (memcmp(zeros, lm_key,
2340 sizeof(lm_key)) != 0)) {
2341 hex_lm_key = hex_encode_talloc(talloc_tos(), (const unsigned char *)lm_key,
2342 sizeof(lm_key));
2343 x_fprintf(x_stdout, "LM_KEY: %s\n", hex_lm_key);
2344 TALLOC_FREE(hex_lm_key);
2345 }
2346 if (request_user_session_key
2347 && (memcmp(zeros, user_session_key,
2348 sizeof(user_session_key)) != 0)) {
2349 hex_user_session_key = hex_encode_talloc(talloc_tos(), (const unsigned char *)user_session_key,
2350 sizeof(user_session_key));
2351 x_fprintf(x_stdout, "NT_KEY: %s\n", hex_user_session_key);
2352 TALLOC_FREE(hex_user_session_key);
2353 }
2354
2355 return True;
2356 }
2357
2358 /* Main program */
2359
2360 enum {
2361 OPT_USERNAME = 1000,
2362 OPT_DOMAIN,
2363 OPT_WORKSTATION,
2364 OPT_CHALLENGE,
2365 OPT_RESPONSE,
2366 OPT_LM,
2367 OPT_NT,
2368 OPT_PASSWORD,
2369 OPT_LM_KEY,
2370 OPT_USER_SESSION_KEY,
2371 OPT_DIAGNOSTICS,
2372 OPT_REQUIRE_MEMBERSHIP,
2373 OPT_USE_CACHED_CREDS,
2374 OPT_PAM_WINBIND_CONF
2375 };
2376
2377 int main(int argc, const char **argv)
2378 {
2379 TALLOC_CTX *frame = talloc_stackframe();
2380 int opt;
2381 static const char *helper_protocol;
2382 static int diagnostics;
2383
2384 static const char *hex_challenge;
2385 static const char *hex_lm_response;
2386 static const char *hex_nt_response;
2387
2388 poptContext pc;
2389
2390 /* NOTE: DO NOT change this interface without considering the implications!
2391 This is an external interface, which other programs will use to interact
2392 with this helper.
2393 */
2394
2395 /* We do not use single-letter command abbreviations, because they harm future
2396 interface stability. */
2397
2398 struct poptOption long_options[] = {
2399 POPT_AUTOHELP
2400 { "helper-protocol", 0, POPT_ARG_STRING, &helper_protocol, OPT_DOMAIN, "operate as a stdio-based helper", "helper protocol to use"},
2401 { "username", 0, POPT_ARG_STRING, &opt_username, OPT_USERNAME, "username"},
2402 { "domain", 0, POPT_ARG_STRING, &opt_domain, OPT_DOMAIN, "domain name"},
2403 { "workstation", 0, POPT_ARG_STRING, &opt_workstation, OPT_WORKSTATION, "workstation"},
2404 { "challenge", 0, POPT_ARG_STRING, &hex_challenge, OPT_CHALLENGE, "challenge (HEX encoded)"},
2405 { "lm-response", 0, POPT_ARG_STRING, &hex_lm_response, OPT_LM, "LM Response to the challenge (HEX encoded)"},
2406 { "nt-response", 0, POPT_ARG_STRING, &hex_nt_response, OPT_NT, "NT or NTLMv2 Response to the challenge (HEX encoded)"},
2407 { "password", 0, POPT_ARG_STRING, &opt_password, OPT_PASSWORD, "User's plaintext password"},
2408 { "request-lm-key", 0, POPT_ARG_NONE, &request_lm_key, OPT_LM_KEY, "Retrieve LM session key"},
2409 { "request-nt-key", 0, POPT_ARG_NONE, &request_user_session_key, OPT_USER_SESSION_KEY, "Retrieve User (NT) session key"},
2410 { "use-cached-creds", 0, POPT_ARG_NONE, &use_cached_creds, OPT_USE_CACHED_CREDS, "Use cached credentials if no password is given"},
2411 { "diagnostics", 0, POPT_ARG_NONE, &diagnostics, OPT_DIAGNOSTICS, "Perform diagnostics on the authentictaion chain"},
2412 { "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" },
2413 { "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" },
2414 POPT_COMMON_CONFIGFILE
2415 POPT_COMMON_VERSION
2416 POPT_TABLEEND
2417 };
2418
2419 /* Samba client initialisation */
2420 load_case_tables();
2421
2422 dbf = x_stderr;
2423
2424 /* Parse options */
2425
2426 pc = poptGetContext("ntlm_auth", argc, argv, long_options, 0);
2427
2428 /* Parse command line options */
2429
2430 if (argc == 1) {
2431 poptPrintHelp(pc, stderr, 0);
2432 return 1;
2433 }
2434
2435 while((opt = poptGetNextOpt(pc)) != -1) {
2436 /* Get generic config options like --configfile */
2437 }
2438
2439 poptFreeContext(pc);
2440
2441 if (!lp_load(get_dyn_CONFIGFILE(), True, False, False, True)) {
2442 d_fprintf(stderr, "ntlm_auth: error opening config file %s. Error was %s\n",
2443 get_dyn_CONFIGFILE(), strerror(errno));
2444 exit(1);
2445 }
2446
2447 pc = poptGetContext(NULL, argc, (const char **)argv, long_options,
2448 POPT_CONTEXT_KEEP_FIRST);
2449
2450 while((opt = poptGetNextOpt(pc)) != -1) {
2451 switch (opt) {
2452 case OPT_CHALLENGE:
2453 opt_challenge = strhex_to_data_blob(NULL, hex_challenge);
2454 if (opt_challenge.length != 8) {
2455 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
2456 hex_challenge,
2457 (int)opt_challenge.length);
2458 exit(1);
2459 }
2460 break;
2461 case OPT_LM:
2462 opt_lm_response = strhex_to_data_blob(NULL, hex_lm_response);
2463 if (opt_lm_response.length != 24) {
2464 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
2465 hex_lm_response,
2466 (int)opt_lm_response.length);
2467 exit(1);
2468 }
2469 break;
2470
2471 case OPT_NT:
2472 opt_nt_response = strhex_to_data_blob(NULL, hex_nt_response);
2473 if (opt_nt_response.length < 24) {
2474 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
2475 hex_nt_response,
2476 (int)opt_nt_response.length);
2477 exit(1);
2478 }
2479 break;
2480
2481 case OPT_REQUIRE_MEMBERSHIP:
2482 if (StrnCaseCmp("S-", require_membership_of, 2) == 0) {
2483 require_membership_of_sid = require_membership_of;
2484 }
2485 break;
2486 }
2487 }
2488
2489 if (opt_username) {
2490 char *domain = SMB_STRDUP(opt_username);
2491 char *p = strchr_m(domain, *lp_winbind_separator());
2492 if (p) {
2493 opt_username = p+1;
2494 *p = '\0';
2495 if (opt_domain && !strequal(opt_domain, domain)) {
2496 x_fprintf(x_stderr, "Domain specified in username (%s) "
2497 "doesn't match specified domain (%s)!\n\n",
2498 domain, opt_domain);
2499 poptPrintHelp(pc, stderr, 0);
2500 exit(1);
2501 }
2502 opt_domain = domain;
2503 } else {
2504 SAFE_FREE(domain);
2505 }
2506 }
2507
2508 /* Note: if opt_domain is "" then send no domain */
2509 if (opt_domain == NULL) {
2510 opt_domain = get_winbind_domain();
2511 }
2512
2513 if (opt_workstation == NULL) {
2514 opt_workstation = "";
2515 }
2516
2517 if (helper_protocol) {
2518 int i;
2519 for (i=0; i<NUM_HELPER_MODES; i++) {
2520 if (strcmp(helper_protocol, stdio_helper_protocols[i].name) == 0) {
2521 squid_stream(stdio_helper_protocols[i].mode, stdio_helper_protocols[i].fn);
2522 exit(0);
2523 }
2524 }
2525 x_fprintf(x_stderr, "unknown helper protocol [%s]\n\nValid helper protools:\n\n", helper_protocol);
2526
2527 for (i=0; i<NUM_HELPER_MODES; i++) {
2528 x_fprintf(x_stderr, "%s\n", stdio_helper_protocols[i].name);
2529 }
2530
2531 exit(1);
2532 }
2533
2534 if (!opt_username || !*opt_username) {
2535 x_fprintf(x_stderr, "username must be specified!\n\n");
2536 poptPrintHelp(pc, stderr, 0);
2537 exit(1);
2538 }
2539
2540 if (opt_challenge.length) {
2541 if (!check_auth_crap()) {
2542 exit(1);
2543 }
2544 exit(0);
2545 }
2546
2547 if (!opt_password) {
2548 opt_password = getpass("password: ");
2549 }
2550
2551 if (diagnostics) {
2552 if (!diagnose_ntlm_auth()) {
2553 return 1;
2554 }
2555 } else {
2556 fstring user;
2557
2558 fstr_sprintf(user, "%s%c%s", opt_domain, winbind_separator(), opt_username);
2559 if (!check_plaintext_auth(user, opt_password, True)) {
2560 return 1;
2561 }
2562 }
2563
2564 /* Exit code */
2565
2566 poptFreeContext(pc);
2567 TALLOC_FREE(frame);
2568 return 0;
2569 }
Eduardo's samba4 branches