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s3:registry: extract the reg_cachehook prototypes into their own header.
[Samba/gebeck_regimport.git] / source3 / utils / ntlm_auth.c
blob79cf3f8af2c9ab3f7e726cd0d207486157747f2e
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 #include "../lib/crypto/arcfour.h"
34
35 #ifndef PAM_WINBIND_CONFIG_FILE
36 #define PAM_WINBIND_CONFIG_FILE "/etc/security/pam_winbind.conf"
37 #endif
38
39 #define WINBIND_KRB5_AUTH 0x00000080
40
41 #undef DBGC_CLASS
42 #define DBGC_CLASS DBGC_WINBIND
43
44 #define INITIAL_BUFFER_SIZE 300
45 #define MAX_BUFFER_SIZE 630000
46
47 enum stdio_helper_mode {
48 SQUID_2_4_BASIC,
49 SQUID_2_5_BASIC,
50 SQUID_2_5_NTLMSSP,
51 NTLMSSP_CLIENT_1,
52 GSS_SPNEGO,
53 GSS_SPNEGO_CLIENT,
54 NTLM_SERVER_1,
55 NTLM_CHANGE_PASSWORD_1,
56 NUM_HELPER_MODES
57 };
58
59 enum ntlm_auth_cli_state {
60 CLIENT_INITIAL = 0,
61 CLIENT_RESPONSE,
62 CLIENT_FINISHED,
63 CLIENT_ERROR
64 };
65
66 enum ntlm_auth_svr_state {
67 SERVER_INITIAL = 0,
68 SERVER_CHALLENGE,
69 SERVER_FINISHED,
70 SERVER_ERROR
71 };
72
73 struct ntlm_auth_state {
74 TALLOC_CTX *mem_ctx;
75 enum stdio_helper_mode helper_mode;
76 enum ntlm_auth_cli_state cli_state;
77 enum ntlm_auth_svr_state svr_state;
78 struct ntlmssp_state *ntlmssp_state;
79 uint32_t neg_flags;
80 char *want_feature_list;
81 bool have_session_key;
82 DATA_BLOB session_key;
83 DATA_BLOB initial_message;
84 };
85
86 typedef void (*stdio_helper_function)(struct ntlm_auth_state *state, char *buf,
87 int length);
88
89 static void manage_squid_basic_request (struct ntlm_auth_state *state,
90 char *buf, int length);
91
92 static void manage_squid_ntlmssp_request (struct ntlm_auth_state *state,
93 char *buf, int length);
94
95 static void manage_client_ntlmssp_request (struct ntlm_auth_state *state,
96 char *buf, int length);
97
98 static void manage_gss_spnego_request (struct ntlm_auth_state *state,
99 char *buf, int length);
100
101 static void manage_gss_spnego_client_request (struct ntlm_auth_state *state,
102 char *buf, int length);
103
104 static void manage_ntlm_server_1_request (struct ntlm_auth_state *state,
105 char *buf, int length);
106
107 static void manage_ntlm_change_password_1_request(struct ntlm_auth_state *state,
108 char *buf, int length);
109
110 static const struct {
111 enum stdio_helper_mode mode;
112 const char *name;
113 stdio_helper_function fn;
114 } stdio_helper_protocols[] = {
115 { SQUID_2_4_BASIC, "squid-2.4-basic", manage_squid_basic_request},
116 { SQUID_2_5_BASIC, "squid-2.5-basic", manage_squid_basic_request},
117 { SQUID_2_5_NTLMSSP, "squid-2.5-ntlmssp", manage_squid_ntlmssp_request},
118 { NTLMSSP_CLIENT_1, "ntlmssp-client-1", manage_client_ntlmssp_request},
119 { GSS_SPNEGO, "gss-spnego", manage_gss_spnego_request},
120 { GSS_SPNEGO_CLIENT, "gss-spnego-client", manage_gss_spnego_client_request},
121 { NTLM_SERVER_1, "ntlm-server-1", manage_ntlm_server_1_request},
122 { NTLM_CHANGE_PASSWORD_1, "ntlm-change-password-1", manage_ntlm_change_password_1_request},
123 { NUM_HELPER_MODES, NULL, NULL}
124 };
125
126 const char *opt_username;
127 const char *opt_domain;
128 const char *opt_workstation;
129 const char *opt_password;
130 static DATA_BLOB opt_challenge;
131 static DATA_BLOB opt_lm_response;
132 static DATA_BLOB opt_nt_response;
133 static int request_lm_key;
134 static int request_user_session_key;
135 static int use_cached_creds;
136
137 static const char *require_membership_of;
138 static const char *require_membership_of_sid;
139 static const char *opt_pam_winbind_conf;
140
141 static char winbind_separator(void)
142 {
143 struct winbindd_response response;
144 static bool got_sep;
145 static char sep;
146
147 if (got_sep)
148 return sep;
149
150 ZERO_STRUCT(response);
151
152 /* Send off request */
153
154 if (winbindd_request_response(WINBINDD_INFO, NULL, &response) !=
155 NSS_STATUS_SUCCESS) {
156 d_printf("could not obtain winbind separator!\n");
157 return *lp_winbind_separator();
158 }
159
160 sep = response.data.info.winbind_separator;
161 got_sep = True;
162
163 if (!sep) {
164 d_printf("winbind separator was NULL!\n");
165 return *lp_winbind_separator();
166 }
167
168 return sep;
169 }
170
171 const char *get_winbind_domain(void)
172 {
173 struct winbindd_response response;
174
175 static fstring winbind_domain;
176 if (*winbind_domain) {
177 return winbind_domain;
178 }
179
180 ZERO_STRUCT(response);
181
182 /* Send off request */
183
184 if (winbindd_request_response(WINBINDD_DOMAIN_NAME, NULL, &response) !=
185 NSS_STATUS_SUCCESS) {
186 DEBUG(0, ("could not obtain winbind domain name!\n"));
187 return lp_workgroup();
188 }
189
190 fstrcpy(winbind_domain, response.data.domain_name);
191
192 return winbind_domain;
193
194 }
195
196 const char *get_winbind_netbios_name(void)
197 {
198 struct winbindd_response response;
199
200 static fstring winbind_netbios_name;
201
202 if (*winbind_netbios_name) {
203 return winbind_netbios_name;
204 }
205
206 ZERO_STRUCT(response);
207
208 /* Send off request */
209
210 if (winbindd_request_response(WINBINDD_NETBIOS_NAME, NULL, &response) !=
211 NSS_STATUS_SUCCESS) {
212 DEBUG(0, ("could not obtain winbind netbios name!\n"));
213 return global_myname();
214 }
215
216 fstrcpy(winbind_netbios_name, response.data.netbios_name);
217
218 return winbind_netbios_name;
219
220 }
221
222 DATA_BLOB get_challenge(void)
223 {
224 static DATA_BLOB chal;
225 if (opt_challenge.length)
226 return opt_challenge;
227
228 chal = data_blob(NULL, 8);
229
230 generate_random_buffer(chal.data, chal.length);
231 return chal;
232 }
233
234 /* Copy of parse_domain_user from winbindd_util.c. Parse a string of the
235 form DOMAIN/user into a domain and a user */
236
237 static bool parse_ntlm_auth_domain_user(const char *domuser, fstring domain,
238 fstring user)
239 {
240
241 char *p = strchr(domuser,winbind_separator());
242
243 if (!p) {
244 return False;
245 }
246
247 fstrcpy(user, p+1);
248 fstrcpy(domain, domuser);
249 domain[PTR_DIFF(p, domuser)] = 0;
250 strupper_m(domain);
251
252 return True;
253 }
254
255 static bool get_require_membership_sid(void) {
256 struct winbindd_request request;
257 struct winbindd_response response;
258
259 if (!require_membership_of) {
260 return True;
261 }
262
263 if (require_membership_of_sid) {
264 return True;
265 }
266
267 /* Otherwise, ask winbindd for the name->sid request */
268
269 ZERO_STRUCT(request);
270 ZERO_STRUCT(response);
271
272 if (!parse_ntlm_auth_domain_user(require_membership_of,
273 request.data.name.dom_name,
274 request.data.name.name)) {
275 DEBUG(0, ("Could not parse %s into seperate domain/name parts!\n",
276 require_membership_of));
277 return False;
278 }
279
280 if (winbindd_request_response(WINBINDD_LOOKUPNAME, &request, &response) !=
281 NSS_STATUS_SUCCESS) {
282 DEBUG(0, ("Winbindd lookupname failed to resolve %s into a SID!\n",
283 require_membership_of));
284 return False;
285 }
286
287 require_membership_of_sid = SMB_STRDUP(response.data.sid.sid);
288
289 if (require_membership_of_sid)
290 return True;
291
292 return False;
293 }
294
295 /*
296 * Get some configuration from pam_winbind.conf to see if we
297 * need to contact trusted domain
298 */
299
300 int get_pam_winbind_config()
301 {
302 int ctrl = 0;
303 dictionary *d = NULL;
304
305 if (!opt_pam_winbind_conf || !*opt_pam_winbind_conf) {
306 opt_pam_winbind_conf = PAM_WINBIND_CONFIG_FILE;
307 }
308
309 d = iniparser_load(CONST_DISCARD(char *, opt_pam_winbind_conf));
310
311 if (!d) {
312 return 0;
313 }
314
315 if (iniparser_getboolean(d, CONST_DISCARD(char *, "global:krb5_auth"), false)) {
316 ctrl |= WINBIND_KRB5_AUTH;
317 }
318
319 iniparser_freedict(d);
320
321 return ctrl;
322 }
323
324 /* Authenticate a user with a plaintext password */
325
326 static bool check_plaintext_auth(const char *user, const char *pass,
327 bool stdout_diagnostics)
328 {
329 struct winbindd_request request;
330 struct winbindd_response response;
331 NSS_STATUS result;
332
333 if (!get_require_membership_sid()) {
334 return False;
335 }
336
337 /* Send off request */
338
339 ZERO_STRUCT(request);
340 ZERO_STRUCT(response);
341
342 fstrcpy(request.data.auth.user, user);
343 fstrcpy(request.data.auth.pass, pass);
344 if (require_membership_of_sid) {
345 strlcpy(request.data.auth.require_membership_of_sid,
346 require_membership_of_sid,
347 sizeof(request.data.auth.require_membership_of_sid));
348 }
349
350 result = winbindd_request_response(WINBINDD_PAM_AUTH, &request, &response);
351
352 /* Display response */
353
354 if (stdout_diagnostics) {
355 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
356 d_printf("Reading winbind reply failed! (0x01)\n");
357 }
358
359 d_printf("%s: %s (0x%x)\n",
360 response.data.auth.nt_status_string,
361 response.data.auth.error_string,
362 response.data.auth.nt_status);
363 } else {
364 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
365 DEBUG(1, ("Reading winbind reply failed! (0x01)\n"));
366 }
367
368 DEBUG(3, ("%s: %s (0x%x)\n",
369 response.data.auth.nt_status_string,
370 response.data.auth.error_string,
371 response.data.auth.nt_status));
372 }
373
374 return (result == NSS_STATUS_SUCCESS);
375 }
376
377 /* authenticate a user with an encrypted username/password */
378
379 NTSTATUS contact_winbind_auth_crap(const char *username,
380 const char *domain,
381 const char *workstation,
382 const DATA_BLOB *challenge,
383 const DATA_BLOB *lm_response,
384 const DATA_BLOB *nt_response,
385 uint32 flags,
386 uint8 lm_key[8],
387 uint8 user_session_key[16],
388 char **error_string,
389 char **unix_name)
390 {
391 NTSTATUS nt_status;
392 NSS_STATUS result;
393 struct winbindd_request request;
394 struct winbindd_response response;
395
396 if (!get_require_membership_sid()) {
397 return NT_STATUS_INVALID_PARAMETER;
398 }
399
400 ZERO_STRUCT(request);
401 ZERO_STRUCT(response);
402
403 request.flags = flags;
404
405 request.data.auth_crap.logon_parameters = MSV1_0_ALLOW_WORKSTATION_TRUST_ACCOUNT | MSV1_0_ALLOW_SERVER_TRUST_ACCOUNT;
406
407 if (require_membership_of_sid)
408 fstrcpy(request.data.auth_crap.require_membership_of_sid, require_membership_of_sid);
409
410 fstrcpy(request.data.auth_crap.user, username);
411 fstrcpy(request.data.auth_crap.domain, domain);
412
413 fstrcpy(request.data.auth_crap.workstation,
414 workstation);
415
416 memcpy(request.data.auth_crap.chal, challenge->data, MIN(challenge->length, 8));
417
418 if (lm_response && lm_response->length) {
419 memcpy(request.data.auth_crap.lm_resp,
420 lm_response->data,
421 MIN(lm_response->length, sizeof(request.data.auth_crap.lm_resp)));
422 request.data.auth_crap.lm_resp_len = lm_response->length;
423 }
424
425 if (nt_response && nt_response->length) {
426 if (nt_response->length > sizeof(request.data.auth_crap.nt_resp)) {
427 request.flags = request.flags | WBFLAG_BIG_NTLMV2_BLOB;
428 request.extra_len = nt_response->length;
429 request.extra_data.data = SMB_MALLOC_ARRAY(char, request.extra_len);
430 if (request.extra_data.data == NULL) {
431 return NT_STATUS_NO_MEMORY;
432 }
433 memcpy(request.extra_data.data, nt_response->data,
434 nt_response->length);
435
436 } else {
437 memcpy(request.data.auth_crap.nt_resp,
438 nt_response->data, nt_response->length);
439 }
440 request.data.auth_crap.nt_resp_len = nt_response->length;
441 }
442
443 result = winbindd_request_response(WINBINDD_PAM_AUTH_CRAP, &request, &response);
444 SAFE_FREE(request.extra_data.data);
445
446 /* Display response */
447
448 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
449 nt_status = NT_STATUS_UNSUCCESSFUL;
450 if (error_string)
451 *error_string = smb_xstrdup("Reading winbind reply failed!");
452 winbindd_free_response(&response);
453 return nt_status;
454 }
455
456 nt_status = (NT_STATUS(response.data.auth.nt_status));
457 if (!NT_STATUS_IS_OK(nt_status)) {
458 if (error_string)
459 *error_string = smb_xstrdup(response.data.auth.error_string);
460 winbindd_free_response(&response);
461 return nt_status;
462 }
463
464 if ((flags & WBFLAG_PAM_LMKEY) && lm_key) {
465 memcpy(lm_key, response.data.auth.first_8_lm_hash,
466 sizeof(response.data.auth.first_8_lm_hash));
467 }
468 if ((flags & WBFLAG_PAM_USER_SESSION_KEY) && user_session_key) {
469 memcpy(user_session_key, response.data.auth.user_session_key,
470 sizeof(response.data.auth.user_session_key));
471 }
472
473 if (flags & WBFLAG_PAM_UNIX_NAME) {
474 *unix_name = SMB_STRDUP(response.data.auth.unix_username);
475 if (!*unix_name) {
476 winbindd_free_response(&response);
477 return NT_STATUS_NO_MEMORY;
478 }
479 }
480
481 winbindd_free_response(&response);
482 return nt_status;
483 }
484
485 /* contact server to change user password using auth crap */
486 static NTSTATUS contact_winbind_change_pswd_auth_crap(const char *username,
487 const char *domain,
488 const DATA_BLOB new_nt_pswd,
489 const DATA_BLOB old_nt_hash_enc,
490 const DATA_BLOB new_lm_pswd,
491 const DATA_BLOB old_lm_hash_enc,
492 char **error_string)
493 {
494 NTSTATUS nt_status;
495 NSS_STATUS result;
496 struct winbindd_request request;
497 struct winbindd_response response;
498
499 if (!get_require_membership_sid())
500 {
501 if(error_string)
502 *error_string = smb_xstrdup("Can't get membership sid.");
503 return NT_STATUS_INVALID_PARAMETER;
504 }
505
506 ZERO_STRUCT(request);
507 ZERO_STRUCT(response);
508
509 if(username != NULL)
510 fstrcpy(request.data.chng_pswd_auth_crap.user, username);
511 if(domain != NULL)
512 fstrcpy(request.data.chng_pswd_auth_crap.domain,domain);
513
514 if(new_nt_pswd.length)
515 {
516 memcpy(request.data.chng_pswd_auth_crap.new_nt_pswd, new_nt_pswd.data, sizeof(request.data.chng_pswd_auth_crap.new_nt_pswd));
517 request.data.chng_pswd_auth_crap.new_nt_pswd_len = new_nt_pswd.length;
518 }
519
520 if(old_nt_hash_enc.length)
521 {
522 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));
523 request.data.chng_pswd_auth_crap.old_nt_hash_enc_len = old_nt_hash_enc.length;
524 }
525
526 if(new_lm_pswd.length)
527 {
528 memcpy(request.data.chng_pswd_auth_crap.new_lm_pswd, new_lm_pswd.data, sizeof(request.data.chng_pswd_auth_crap.new_lm_pswd));
529 request.data.chng_pswd_auth_crap.new_lm_pswd_len = new_lm_pswd.length;
530 }
531
532 if(old_lm_hash_enc.length)
533 {
534 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));
535 request.data.chng_pswd_auth_crap.old_lm_hash_enc_len = old_lm_hash_enc.length;
536 }
537
538 result = winbindd_request_response(WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP, &request, &response);
539
540 /* Display response */
541
542 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0))
543 {
544 nt_status = NT_STATUS_UNSUCCESSFUL;
545 if (error_string)
546 *error_string = smb_xstrdup("Reading winbind reply failed!");
547 winbindd_free_response(&response);
548 return nt_status;
549 }
550
551 nt_status = (NT_STATUS(response.data.auth.nt_status));
552 if (!NT_STATUS_IS_OK(nt_status))
553 {
554 if (error_string)
555 *error_string = smb_xstrdup(response.data.auth.error_string);
556 winbindd_free_response(&response);
557 return nt_status;
558 }
559
560 winbindd_free_response(&response);
561
562 return nt_status;
563 }
564
565 static NTSTATUS winbind_pw_check(struct ntlmssp_state *ntlmssp_state, DATA_BLOB *user_session_key, DATA_BLOB *lm_session_key)
566 {
567 static const char zeros[16] = { 0, };
568 NTSTATUS nt_status;
569 char *error_string = NULL;
570 uint8 lm_key[8];
571 uint8 user_sess_key[16];
572 char *unix_name = NULL;
573
574 nt_status = contact_winbind_auth_crap(ntlmssp_state->user, ntlmssp_state->domain,
575 ntlmssp_state->client.netbios_name,
576 &ntlmssp_state->chal,
577 &ntlmssp_state->lm_resp,
578 &ntlmssp_state->nt_resp,
579 WBFLAG_PAM_LMKEY | WBFLAG_PAM_USER_SESSION_KEY | WBFLAG_PAM_UNIX_NAME,
580 lm_key, user_sess_key,
581 &error_string, &unix_name);
582
583 if (NT_STATUS_IS_OK(nt_status)) {
584 if (memcmp(lm_key, zeros, 8) != 0) {
585 *lm_session_key = data_blob_talloc(ntlmssp_state, NULL, 16);
586 memcpy(lm_session_key->data, lm_key, 8);
587 memset(lm_session_key->data+8, '\0', 8);
588 }
589
590 if (memcmp(user_sess_key, zeros, 16) != 0) {
591 *user_session_key = data_blob_talloc(ntlmssp_state, user_sess_key, 16);
592 }
593 ntlmssp_state->callback_private = talloc_strdup(ntlmssp_state,
594 unix_name);
595 } else {
596 DEBUG(NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED) ? 0 : 3,
597 ("Login for user [%s]\\[%s]@[%s] failed due to [%s]\n",
598 ntlmssp_state->domain, ntlmssp_state->user,
599 ntlmssp_state->client.netbios_name,
600 error_string ? error_string : "unknown error (NULL)"));
601 ntlmssp_state->callback_private = NULL;
602 }
603
604 SAFE_FREE(error_string);
605 SAFE_FREE(unix_name);
606 return nt_status;
607 }
608
609 static NTSTATUS local_pw_check(struct ntlmssp_state *ntlmssp_state, DATA_BLOB *user_session_key, DATA_BLOB *lm_session_key)
610 {
611 NTSTATUS nt_status;
612 struct samr_Password lm_pw, nt_pw;
613
614 nt_lm_owf_gen (opt_password, nt_pw.hash, lm_pw.hash);
615
616 nt_status = ntlm_password_check(ntlmssp_state,
617 true, true, 0,
618 &ntlmssp_state->chal,
619 &ntlmssp_state->lm_resp,
620 &ntlmssp_state->nt_resp,
621 ntlmssp_state->user,
622 ntlmssp_state->user,
623 ntlmssp_state->domain,
624 &lm_pw, &nt_pw, user_session_key, lm_session_key);
625
626 if (NT_STATUS_IS_OK(nt_status)) {
627 ntlmssp_state->callback_private = talloc_asprintf(ntlmssp_state,
628 "%s%c%s", ntlmssp_state->domain,
629 *lp_winbind_separator(),
630 ntlmssp_state->user);
631 } else {
632 DEBUG(3, ("Login for user [%s]\\[%s]@[%s] failed due to [%s]\n",
633 ntlmssp_state->domain, ntlmssp_state->user,
634 ntlmssp_state->client.netbios_name,
635 nt_errstr(nt_status)));
636 ntlmssp_state->callback_private = NULL;
637 }
638 return nt_status;
639 }
640
641 static NTSTATUS ntlm_auth_start_ntlmssp_client(struct ntlmssp_state **client_ntlmssp_state)
642 {
643 NTSTATUS status;
644 if ( (opt_username == NULL) || (opt_domain == NULL) ) {
645 status = NT_STATUS_UNSUCCESSFUL;
646 DEBUG(1, ("Need username and domain for NTLMSSP\n"));
647 return NT_STATUS_INVALID_PARAMETER;
648 }
649
650 status = ntlmssp_client_start(NULL,
651 global_myname(),
652 lp_workgroup(),
653 lp_client_ntlmv2_auth(),
654 client_ntlmssp_state);
655
656 if (!NT_STATUS_IS_OK(status)) {
657 DEBUG(1, ("Could not start NTLMSSP client: %s\n",
658 nt_errstr(status)));
659 ntlmssp_end(client_ntlmssp_state);
660 return status;
661 }
662
663 status = ntlmssp_set_username(*client_ntlmssp_state, opt_username);
664
665 if (!NT_STATUS_IS_OK(status)) {
666 DEBUG(1, ("Could not set username: %s\n",
667 nt_errstr(status)));
668 ntlmssp_end(client_ntlmssp_state);
669 return status;
670 }
671
672 status = ntlmssp_set_domain(*client_ntlmssp_state, opt_domain);
673
674 if (!NT_STATUS_IS_OK(status)) {
675 DEBUG(1, ("Could not set domain: %s\n",
676 nt_errstr(status)));
677 ntlmssp_end(client_ntlmssp_state);
678 return status;
679 }
680
681 if (opt_password) {
682 status = ntlmssp_set_password(*client_ntlmssp_state, opt_password);
683
684 if (!NT_STATUS_IS_OK(status)) {
685 DEBUG(1, ("Could not set password: %s\n",
686 nt_errstr(status)));
687 ntlmssp_end(client_ntlmssp_state);
688 return status;
689 }
690 }
691
692 return NT_STATUS_OK;
693 }
694
695 static NTSTATUS ntlm_auth_start_ntlmssp_server(struct ntlmssp_state **ntlmssp_state)
696 {
697 NTSTATUS status;
698 const char *netbios_name;
699 const char *netbios_domain;
700 const char *dns_name;
701 char *dns_domain;
702 bool is_standalone = false;
703
704 if (opt_password) {
705 netbios_name = global_myname();
706 netbios_domain = lp_workgroup();
707 } else {
708 netbios_name = get_winbind_netbios_name();
709 netbios_domain = get_winbind_domain();
710 }
711 /* This should be a 'netbios domain -> DNS domain' mapping */
712 dns_domain = get_mydnsdomname(talloc_tos());
713 if (dns_domain) {
714 strlower_m(dns_domain);
715 }
716 dns_name = get_mydnsfullname();
717
718 status = ntlmssp_server_start(NULL,
719 is_standalone,
720 netbios_name,
721 netbios_domain,
722 dns_name,
723 dns_domain,
724 ntlmssp_state);
725 if (!NT_STATUS_IS_OK(status)) {
726 DEBUG(1, ("Could not start NTLMSSP server: %s\n",
727 nt_errstr(status)));
728 return status;
729 }
730
731 /* Have we been given a local password, or should we ask winbind? */
732 if (opt_password) {
733 (*ntlmssp_state)->check_password = local_pw_check;
734 } else {
735 (*ntlmssp_state)->check_password = winbind_pw_check;
736 }
737 return NT_STATUS_OK;
738 }
739
740 /*******************************************************************
741 Used by firefox to drive NTLM auth to IIS servers.
742 *******************************************************************/
743
744 static NTSTATUS do_ccache_ntlm_auth(DATA_BLOB initial_msg, DATA_BLOB challenge_msg,
745 DATA_BLOB *reply)
746 {
747 struct winbindd_request wb_request;
748 struct winbindd_response wb_response;
749 int ctrl = 0;
750 NSS_STATUS result;
751
752 /* get winbindd to do the ntlmssp step on our behalf */
753 ZERO_STRUCT(wb_request);
754 ZERO_STRUCT(wb_response);
755
756 /*
757 * This is tricky here. If we set krb5_auth in pam_winbind.conf
758 * creds for users in trusted domain will be stored the winbindd
759 * child of the trusted domain. If we ask the primary domain for
760 * ntlm_ccache_auth, it will fail. So, we have to ask the trusted
761 * domain's child for ccache_ntlm_auth. that is to say, we have to
762 * set WBFALG_PAM_CONTACT_TRUSTDOM in request.flags.
763 */
764 ctrl = get_pam_winbind_config();
765
766 if (ctrl | WINBIND_KRB5_AUTH) {
767 wb_request.flags |= WBFLAG_PAM_CONTACT_TRUSTDOM;
768 }
769
770 fstr_sprintf(wb_request.data.ccache_ntlm_auth.user,
771 "%s%c%s", opt_domain, winbind_separator(), opt_username);
772 wb_request.data.ccache_ntlm_auth.uid = geteuid();
773 wb_request.data.ccache_ntlm_auth.initial_blob_len = initial_msg.length;
774 wb_request.data.ccache_ntlm_auth.challenge_blob_len = challenge_msg.length;
775 wb_request.extra_len = initial_msg.length + challenge_msg.length;
776
777 if (wb_request.extra_len > 0) {
778 wb_request.extra_data.data = SMB_MALLOC_ARRAY(char, wb_request.extra_len);
779 if (wb_request.extra_data.data == NULL) {
780 return NT_STATUS_NO_MEMORY;
781 }
782
783 memcpy(wb_request.extra_data.data, initial_msg.data, initial_msg.length);
784 memcpy(wb_request.extra_data.data + initial_msg.length,
785 challenge_msg.data, challenge_msg.length);
786 }
787
788 result = winbindd_request_response(WINBINDD_CCACHE_NTLMAUTH, &wb_request, &wb_response);
789 SAFE_FREE(wb_request.extra_data.data);
790
791 if (result != NSS_STATUS_SUCCESS) {
792 winbindd_free_response(&wb_response);
793 return NT_STATUS_UNSUCCESSFUL;
794 }
795
796 if (reply) {
797 *reply = data_blob(wb_response.extra_data.data,
798 wb_response.data.ccache_ntlm_auth.auth_blob_len);
799 if (wb_response.data.ccache_ntlm_auth.auth_blob_len > 0 &&
800 reply->data == NULL) {
801 winbindd_free_response(&wb_response);
802 return NT_STATUS_NO_MEMORY;
803 }
804 }
805
806 winbindd_free_response(&wb_response);
807 return NT_STATUS_MORE_PROCESSING_REQUIRED;
808 }
809
810 static void manage_squid_ntlmssp_request(struct ntlm_auth_state *state,
811 char *buf, int length)
812 {
813 DATA_BLOB request, reply;
814 NTSTATUS nt_status;
815
816 if (strlen(buf) < 2) {
817 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
818 x_fprintf(x_stdout, "BH NTLMSSP query invalid\n");
819 return;
820 }
821
822 if (strlen(buf) > 3) {
823 if(strncmp(buf, "SF ", 3) == 0){
824 DEBUG(10, ("Setting flags to negotioate\n"));
825 TALLOC_FREE(state->want_feature_list);
826 state->want_feature_list = talloc_strdup(state->mem_ctx,
827 buf+3);
828 x_fprintf(x_stdout, "OK\n");
829 return;
830 }
831 request = base64_decode_data_blob(buf + 3);
832 } else {
833 request = data_blob_null;
834 }
835
836 if ((strncmp(buf, "PW ", 3) == 0)) {
837 /* The calling application wants us to use a local password
838 * (rather than winbindd) */
839
840 opt_password = SMB_STRNDUP((const char *)request.data,
841 request.length);
842
843 if (opt_password == NULL) {
844 DEBUG(1, ("Out of memory\n"));
845 x_fprintf(x_stdout, "BH Out of memory\n");
846 data_blob_free(&request);
847 return;
848 }
849
850 x_fprintf(x_stdout, "OK\n");
851 data_blob_free(&request);
852 return;
853 }
854
855 if (strncmp(buf, "YR", 2) == 0) {
856 if (state->ntlmssp_state)
857 ntlmssp_end(&state->ntlmssp_state);
858 state->svr_state = SERVER_INITIAL;
859 } else if (strncmp(buf, "KK", 2) == 0) {
860 /* No special preprocessing required */
861 } else if (strncmp(buf, "GF", 2) == 0) {
862 DEBUG(10, ("Requested negotiated NTLMSSP flags\n"));
863
864 if (state->svr_state == SERVER_FINISHED) {
865 x_fprintf(x_stdout, "GF 0x%08x\n", state->neg_flags);
866 }
867 else {
868 x_fprintf(x_stdout, "BH\n");
869 }
870 data_blob_free(&request);
871 return;
872 } else if (strncmp(buf, "GK", 2) == 0) {
873 DEBUG(10, ("Requested NTLMSSP session key\n"));
874 if(state->have_session_key) {
875 char *key64 = base64_encode_data_blob(state->mem_ctx,
876 state->session_key);
877 x_fprintf(x_stdout, "GK %s\n", key64?key64:"<NULL>");
878 TALLOC_FREE(key64);
879 } else {
880 x_fprintf(x_stdout, "BH\n");
881 }
882
883 data_blob_free(&request);
884 return;
885 } else {
886 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
887 x_fprintf(x_stdout, "BH NTLMSSP query invalid\n");
888 return;
889 }
890
891 if (!state->ntlmssp_state) {
892 nt_status = ntlm_auth_start_ntlmssp_server(
893 &state->ntlmssp_state);
894 if (!NT_STATUS_IS_OK(nt_status)) {
895 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
896 return;
897 }
898 ntlmssp_want_feature_list(state->ntlmssp_state,
899 state->want_feature_list);
900 }
901
902 DEBUG(10, ("got NTLMSSP packet:\n"));
903 dump_data(10, request.data, request.length);
904
905 nt_status = ntlmssp_update(state->ntlmssp_state, request, &reply);
906
907 if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
908 char *reply_base64 = base64_encode_data_blob(state->mem_ctx,
909 reply);
910 x_fprintf(x_stdout, "TT %s\n", reply_base64);
911 TALLOC_FREE(reply_base64);
912 data_blob_free(&reply);
913 state->svr_state = SERVER_CHALLENGE;
914 DEBUG(10, ("NTLMSSP challenge\n"));
915 } else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED)) {
916 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
917 DEBUG(0, ("NTLMSSP BH: %s\n", nt_errstr(nt_status)));
918
919 ntlmssp_end(&state->ntlmssp_state);
920 } else if (!NT_STATUS_IS_OK(nt_status)) {
921 x_fprintf(x_stdout, "NA %s\n", nt_errstr(nt_status));
922 DEBUG(10, ("NTLMSSP %s\n", nt_errstr(nt_status)));
923 } else {
924 x_fprintf(x_stdout, "AF %s\n",
925 (char *)state->ntlmssp_state->callback_private);
926 DEBUG(10, ("NTLMSSP OK!\n"));
927
928 if(state->have_session_key)
929 data_blob_free(&state->session_key);
930 state->session_key = data_blob(
931 state->ntlmssp_state->session_key.data,
932 state->ntlmssp_state->session_key.length);
933 state->neg_flags = state->ntlmssp_state->neg_flags;
934 state->have_session_key = true;
935 state->svr_state = SERVER_FINISHED;
936 }
937
938 data_blob_free(&request);
939 }
940
941 static void manage_client_ntlmssp_request(struct ntlm_auth_state *state,
942 char *buf, int length)
943 {
944 DATA_BLOB request, reply;
945 NTSTATUS nt_status;
946
947 if (!opt_username || !*opt_username) {
948 x_fprintf(x_stderr, "username must be specified!\n\n");
949 exit(1);
950 }
951
952 if (strlen(buf) < 2) {
953 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
954 x_fprintf(x_stdout, "BH NTLMSSP query invalid\n");
955 return;
956 }
957
958 if (strlen(buf) > 3) {
959 if(strncmp(buf, "SF ", 3) == 0) {
960 DEBUG(10, ("Looking for flags to negotiate\n"));
961 talloc_free(state->want_feature_list);
962 state->want_feature_list = talloc_strdup(state->mem_ctx,
963 buf+3);
964 x_fprintf(x_stdout, "OK\n");
965 return;
966 }
967 request = base64_decode_data_blob(buf + 3);
968 } else {
969 request = data_blob_null;
970 }
971
972 if (strncmp(buf, "PW ", 3) == 0) {
973 /* We asked for a password and obviously got it :-) */
974
975 opt_password = SMB_STRNDUP((const char *)request.data,
976 request.length);
977
978 if (opt_password == NULL) {
979 DEBUG(1, ("Out of memory\n"));
980 x_fprintf(x_stdout, "BH Out of memory\n");
981 data_blob_free(&request);
982 return;
983 }
984
985 x_fprintf(x_stdout, "OK\n");
986 data_blob_free(&request);
987 return;
988 }
989
990 if (!state->ntlmssp_state && use_cached_creds) {
991 /* check whether cached credentials are usable. */
992 DATA_BLOB empty_blob = data_blob_null;
993
994 nt_status = do_ccache_ntlm_auth(empty_blob, empty_blob, NULL);
995 if (!NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
996 /* failed to use cached creds */
997 use_cached_creds = False;
998 }
999 }
1000
1001 if (opt_password == NULL && !use_cached_creds) {
1002 /* Request a password from the calling process. After
1003 sending it, the calling process should retry asking for the
1004 negotiate. */
1005
1006 DEBUG(10, ("Requesting password\n"));
1007 x_fprintf(x_stdout, "PW\n");
1008 return;
1009 }
1010
1011 if (strncmp(buf, "YR", 2) == 0) {
1012 if (state->ntlmssp_state)
1013 ntlmssp_end(&state->ntlmssp_state);
1014 state->cli_state = CLIENT_INITIAL;
1015 } else if (strncmp(buf, "TT", 2) == 0) {
1016 /* No special preprocessing required */
1017 } else if (strncmp(buf, "GF", 2) == 0) {
1018 DEBUG(10, ("Requested negotiated NTLMSSP flags\n"));
1019
1020 if(state->cli_state == CLIENT_FINISHED) {
1021 x_fprintf(x_stdout, "GF 0x%08x\n", state->neg_flags);
1022 }
1023 else {
1024 x_fprintf(x_stdout, "BH\n");
1025 }
1026
1027 data_blob_free(&request);
1028 return;
1029 } else if (strncmp(buf, "GK", 2) == 0 ) {
1030 DEBUG(10, ("Requested session key\n"));
1031
1032 if(state->cli_state == CLIENT_FINISHED) {
1033 char *key64 = base64_encode_data_blob(state->mem_ctx,
1034 state->session_key);
1035 x_fprintf(x_stdout, "GK %s\n", key64?key64:"<NULL>");
1036 TALLOC_FREE(key64);
1037 }
1038 else {
1039 x_fprintf(x_stdout, "BH\n");
1040 }
1041
1042 data_blob_free(&request);
1043 return;
1044 } else {
1045 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
1046 x_fprintf(x_stdout, "BH NTLMSSP query invalid\n");
1047 return;
1048 }
1049
1050 if (!state->ntlmssp_state) {
1051 nt_status = ntlm_auth_start_ntlmssp_client(
1052 &state->ntlmssp_state);
1053 if (!NT_STATUS_IS_OK(nt_status)) {
1054 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
1055 return;
1056 }
1057 ntlmssp_want_feature_list(state->ntlmssp_state,
1058 state->want_feature_list);
1059 state->initial_message = data_blob_null;
1060 }
1061
1062 DEBUG(10, ("got NTLMSSP packet:\n"));
1063 dump_data(10, request.data, request.length);
1064
1065 if (use_cached_creds && !opt_password &&
1066 (state->cli_state == CLIENT_RESPONSE)) {
1067 nt_status = do_ccache_ntlm_auth(state->initial_message, request,
1068 &reply);
1069 } else {
1070 nt_status = ntlmssp_update(state->ntlmssp_state, request,
1071 &reply);
1072 }
1073
1074 if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1075 char *reply_base64 = base64_encode_data_blob(state->mem_ctx,
1076 reply);
1077 if (state->cli_state == CLIENT_INITIAL) {
1078 x_fprintf(x_stdout, "YR %s\n", reply_base64);
1079 state->initial_message = reply;
1080 state->cli_state = CLIENT_RESPONSE;
1081 } else {
1082 x_fprintf(x_stdout, "KK %s\n", reply_base64);
1083 data_blob_free(&reply);
1084 }
1085 TALLOC_FREE(reply_base64);
1086 DEBUG(10, ("NTLMSSP challenge\n"));
1087 } else if (NT_STATUS_IS_OK(nt_status)) {
1088 char *reply_base64 = base64_encode_data_blob(talloc_tos(),
1089 reply);
1090 x_fprintf(x_stdout, "AF %s\n", reply_base64);
1091 TALLOC_FREE(reply_base64);
1092
1093 if(state->have_session_key)
1094 data_blob_free(&state->session_key);
1095
1096 state->session_key = data_blob(
1097 state->ntlmssp_state->session_key.data,
1098 state->ntlmssp_state->session_key.length);
1099 state->neg_flags = state->ntlmssp_state->neg_flags;
1100 state->have_session_key = true;
1101
1102 DEBUG(10, ("NTLMSSP OK!\n"));
1103 state->cli_state = CLIENT_FINISHED;
1104 if (state->ntlmssp_state)
1105 ntlmssp_end(&state->ntlmssp_state);
1106 } else {
1107 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
1108 DEBUG(0, ("NTLMSSP BH: %s\n", nt_errstr(nt_status)));
1109 state->cli_state = CLIENT_ERROR;
1110 if (state->ntlmssp_state)
1111 ntlmssp_end(&state->ntlmssp_state);
1112 }
1113
1114 data_blob_free(&request);
1115 }
1116
1117 static void manage_squid_basic_request(struct ntlm_auth_state *state,
1118 char *buf, int length)
1119 {
1120 char *user, *pass;
1121 user=buf;
1122
1123 pass=(char *)memchr(buf,' ',length);
1124 if (!pass) {
1125 DEBUG(2, ("Password not found. Denying access\n"));
1126 x_fprintf(x_stdout, "ERR\n");
1127 return;
1128 }
1129 *pass='\0';
1130 pass++;
1131
1132 if (state->helper_mode == SQUID_2_5_BASIC) {
1133 rfc1738_unescape(user);
1134 rfc1738_unescape(pass);
1135 }
1136
1137 if (check_plaintext_auth(user, pass, False)) {
1138 x_fprintf(x_stdout, "OK\n");
1139 } else {
1140 x_fprintf(x_stdout, "ERR\n");
1141 }
1142 }
1143
1144 static void offer_gss_spnego_mechs(void) {
1145
1146 DATA_BLOB token;
1147 struct spnego_data spnego;
1148 ssize_t len;
1149 char *reply_base64;
1150 TALLOC_CTX *ctx = talloc_tos();
1151 char *principal;
1152 char *myname_lower;
1153
1154 ZERO_STRUCT(spnego);
1155
1156 myname_lower = talloc_strdup(ctx, global_myname());
1157 if (!myname_lower) {
1158 return;
1159 }
1160 strlower_m(myname_lower);
1161
1162 principal = talloc_asprintf(ctx, "%s$@%s", myname_lower, lp_realm());
1163 if (!principal) {
1164 return;
1165 }
1166
1167 /* Server negTokenInit (mech offerings) */
1168 spnego.type = SPNEGO_NEG_TOKEN_INIT;
1169 spnego.negTokenInit.mechTypes = talloc_array(ctx, const char *, 2);
1170 #ifdef HAVE_KRB5
1171 spnego.negTokenInit.mechTypes[0] = talloc_strdup(ctx, OID_KERBEROS5_OLD);
1172 spnego.negTokenInit.mechTypes[1] = talloc_strdup(ctx, OID_NTLMSSP);
1173 spnego.negTokenInit.mechTypes[2] = NULL;
1174 #else
1175 spnego.negTokenInit.mechTypes[0] = talloc_strdup(ctx, OID_NTLMSSP);
1176 spnego.negTokenInit.mechTypes[1] = NULL;
1177 #endif
1178
1179
1180 spnego.negTokenInit.mechListMIC = data_blob_talloc(ctx, principal,
1181 strlen(principal));
1182
1183 len = spnego_write_data(ctx, &token, &spnego);
1184 spnego_free_data(&spnego);
1185
1186 if (len == -1) {
1187 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1188 x_fprintf(x_stdout, "BH Could not write SPNEGO data blob\n");
1189 return;
1190 }
1191
1192 reply_base64 = base64_encode_data_blob(talloc_tos(), token);
1193 x_fprintf(x_stdout, "TT %s *\n", reply_base64);
1194
1195 TALLOC_FREE(reply_base64);
1196 data_blob_free(&token);
1197 DEBUG(10, ("sent SPNEGO negTokenInit\n"));
1198 return;
1199 }
1200
1201 static void manage_gss_spnego_request(struct ntlm_auth_state *state,
1202 char *buf, int length)
1203 {
1204 static struct ntlmssp_state *ntlmssp_state = NULL;
1205 struct spnego_data request, response;
1206 DATA_BLOB token;
1207 NTSTATUS status;
1208 ssize_t len;
1209 TALLOC_CTX *ctx = talloc_tos();
1210
1211 char *user = NULL;
1212 char *domain = NULL;
1213
1214 const char *reply_code;
1215 char *reply_base64;
1216 char *reply_argument = NULL;
1217
1218 if (strlen(buf) < 2) {
1219 DEBUG(1, ("SPENGO query [%s] invalid", buf));
1220 x_fprintf(x_stdout, "BH SPENGO query invalid\n");
1221 return;
1222 }
1223
1224 if (strncmp(buf, "YR", 2) == 0) {
1225 if (ntlmssp_state)
1226 ntlmssp_end(&ntlmssp_state);
1227 } else if (strncmp(buf, "KK", 2) == 0) {
1228 ;
1229 } else {
1230 DEBUG(1, ("SPENGO query [%s] invalid", buf));
1231 x_fprintf(x_stdout, "BH SPENGO query invalid\n");
1232 return;
1233 }
1234
1235 if ( (strlen(buf) == 2)) {
1236
1237 /* no client data, get the negTokenInit offering
1238 mechanisms */
1239
1240 offer_gss_spnego_mechs();
1241 return;
1242 }
1243
1244 /* All subsequent requests have a blob. This might be negTokenInit or negTokenTarg */
1245
1246 if (strlen(buf) <= 3) {
1247 DEBUG(1, ("GSS-SPNEGO query [%s] invalid\n", buf));
1248 x_fprintf(x_stdout, "BH GSS-SPNEGO query invalid\n");
1249 return;
1250 }
1251
1252 token = base64_decode_data_blob(buf + 3);
1253 len = spnego_read_data(ctx, token, &request);
1254 data_blob_free(&token);
1255
1256 if (len == -1) {
1257 DEBUG(1, ("GSS-SPNEGO query [%s] invalid", buf));
1258 x_fprintf(x_stdout, "BH GSS-SPNEGO query invalid\n");
1259 return;
1260 }
1261
1262 if (request.type == SPNEGO_NEG_TOKEN_INIT) {
1263
1264 /* Second request from Client. This is where the
1265 client offers its mechanism to use. */
1266
1267 if ( (request.negTokenInit.mechTypes == NULL) ||
1268 (request.negTokenInit.mechTypes[0] == NULL) ) {
1269 DEBUG(1, ("Client did not offer any mechanism"));
1270 x_fprintf(x_stdout, "BH Client did not offer any "
1271 "mechanism\n");
1272 return;
1273 }
1274
1275 status = NT_STATUS_UNSUCCESSFUL;
1276 if (strcmp(request.negTokenInit.mechTypes[0], OID_NTLMSSP) == 0) {
1277
1278 if ( request.negTokenInit.mechToken.data == NULL ) {
1279 DEBUG(1, ("Client did not provide NTLMSSP data\n"));
1280 x_fprintf(x_stdout, "BH Client did not provide "
1281 "NTLMSSP data\n");
1282 return;
1283 }
1284
1285 if ( ntlmssp_state != NULL ) {
1286 DEBUG(1, ("Client wants a new NTLMSSP challenge, but "
1287 "already got one\n"));
1288 x_fprintf(x_stdout, "BH Client wants a new "
1289 "NTLMSSP challenge, but "
1290 "already got one\n");
1291 ntlmssp_end(&ntlmssp_state);
1292 return;
1293 }
1294
1295 if (!NT_STATUS_IS_OK(status = ntlm_auth_start_ntlmssp_server(&ntlmssp_state))) {
1296 x_fprintf(x_stdout, "BH %s\n", nt_errstr(status));
1297 return;
1298 }
1299
1300 DEBUG(10, ("got NTLMSSP packet:\n"));
1301 dump_data(10, request.negTokenInit.mechToken.data,
1302 request.negTokenInit.mechToken.length);
1303
1304 response.type = SPNEGO_NEG_TOKEN_TARG;
1305 response.negTokenTarg.supportedMech = talloc_strdup(ctx, OID_NTLMSSP);
1306 response.negTokenTarg.mechListMIC = data_blob_talloc(ctx, NULL, 0);
1307
1308 status = ntlmssp_update(ntlmssp_state,
1309 request.negTokenInit.mechToken,
1310 &response.negTokenTarg.responseToken);
1311 }
1312
1313 #ifdef HAVE_KRB5
1314 if (strcmp(request.negTokenInit.mechTypes[0], OID_KERBEROS5_OLD) == 0) {
1315
1316 TALLOC_CTX *mem_ctx = talloc_init("manage_gss_spnego_request");
1317 char *principal;
1318 DATA_BLOB ap_rep;
1319 DATA_BLOB session_key;
1320 struct PAC_LOGON_INFO *logon_info = NULL;
1321
1322 if ( request.negTokenInit.mechToken.data == NULL ) {
1323 DEBUG(1, ("Client did not provide Kerberos data\n"));
1324 x_fprintf(x_stdout, "BH Client did not provide "
1325 "Kerberos data\n");
1326 return;
1327 }
1328
1329 response.type = SPNEGO_NEG_TOKEN_TARG;
1330 response.negTokenTarg.supportedMech = talloc_strdup(ctx, OID_KERBEROS5_OLD);
1331 response.negTokenTarg.mechListMIC = data_blob_talloc(ctx, NULL, 0);
1332 response.negTokenTarg.responseToken = data_blob_talloc(ctx, NULL, 0);
1333
1334 status = ads_verify_ticket(mem_ctx, lp_realm(), 0,
1335 &request.negTokenInit.mechToken,
1336 &principal, &logon_info, &ap_rep,
1337 &session_key, True);
1338
1339 /* Now in "principal" we have the name we are
1340 authenticated as. */
1341
1342 if (NT_STATUS_IS_OK(status)) {
1343
1344 domain = strchr_m(principal, '@');
1345
1346 if (domain == NULL) {
1347 DEBUG(1, ("Did not get a valid principal "
1348 "from ads_verify_ticket\n"));
1349 x_fprintf(x_stdout, "BH Did not get a "
1350 "valid principal from "
1351 "ads_verify_ticket\n");
1352 return;
1353 }
1354
1355 *domain++ = '\0';
1356 domain = SMB_STRDUP(domain);
1357 user = SMB_STRDUP(principal);
1358
1359 data_blob_free(&ap_rep);
1360 }
1361
1362 TALLOC_FREE(mem_ctx);
1363 }
1364 #endif
1365
1366 } else {
1367
1368 if ( (request.negTokenTarg.supportedMech == NULL) ||
1369 ( strcmp(request.negTokenTarg.supportedMech, OID_NTLMSSP) != 0 ) ) {
1370 /* Kerberos should never send a negTokenTarg, OID_NTLMSSP
1371 is the only one we support that sends this stuff */
1372 DEBUG(1, ("Got a negTokenTarg for something non-NTLMSSP: %s\n",
1373 request.negTokenTarg.supportedMech));
1374 x_fprintf(x_stdout, "BH Got a negTokenTarg for "
1375 "something non-NTLMSSP\n");
1376 return;
1377 }
1378
1379 if (request.negTokenTarg.responseToken.data == NULL) {
1380 DEBUG(1, ("Got a negTokenTarg without a responseToken!\n"));
1381 x_fprintf(x_stdout, "BH Got a negTokenTarg without a "
1382 "responseToken!\n");
1383 return;
1384 }
1385
1386 status = ntlmssp_update(ntlmssp_state,
1387 request.negTokenTarg.responseToken,
1388 &response.negTokenTarg.responseToken);
1389
1390 response.type = SPNEGO_NEG_TOKEN_TARG;
1391 response.negTokenTarg.supportedMech = talloc_strdup(ctx, OID_NTLMSSP);
1392 response.negTokenTarg.mechListMIC = data_blob_talloc(ctx, NULL, 0);
1393
1394 if (NT_STATUS_IS_OK(status)) {
1395 user = SMB_STRDUP(ntlmssp_state->user);
1396 domain = SMB_STRDUP(ntlmssp_state->domain);
1397 ntlmssp_end(&ntlmssp_state);
1398 }
1399 }
1400
1401 spnego_free_data(&request);
1402
1403 if (NT_STATUS_IS_OK(status)) {
1404 response.negTokenTarg.negResult = SPNEGO_ACCEPT_COMPLETED;
1405 reply_code = "AF";
1406 reply_argument = talloc_asprintf(ctx, "%s\\%s", domain, user);
1407 } else if (NT_STATUS_EQUAL(status,
1408 NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1409 response.negTokenTarg.negResult = SPNEGO_ACCEPT_INCOMPLETE;
1410 reply_code = "TT";
1411 reply_argument = talloc_strdup(ctx, "*");
1412 } else {
1413 response.negTokenTarg.negResult = SPNEGO_REJECT;
1414 reply_code = "NA";
1415 reply_argument = talloc_strdup(ctx, nt_errstr(status));
1416 }
1417
1418 if (!reply_argument) {
1419 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1420 x_fprintf(x_stdout, "BH Could not write SPNEGO data blob\n");
1421 return;
1422 }
1423
1424 SAFE_FREE(user);
1425 SAFE_FREE(domain);
1426
1427 len = spnego_write_data(ctx, &token, &response);
1428 spnego_free_data(&response);
1429
1430 if (len == -1) {
1431 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1432 x_fprintf(x_stdout, "BH Could not write SPNEGO data blob\n");
1433 return;
1434 }
1435
1436 reply_base64 = base64_encode_data_blob(talloc_tos(), token);
1437
1438 x_fprintf(x_stdout, "%s %s %s\n",
1439 reply_code, reply_base64, reply_argument);
1440
1441 TALLOC_FREE(reply_base64);
1442 data_blob_free(&token);
1443
1444 return;
1445 }
1446
1447 static struct ntlmssp_state *client_ntlmssp_state = NULL;
1448
1449 static bool manage_client_ntlmssp_init(struct spnego_data spnego)
1450 {
1451 NTSTATUS status;
1452 DATA_BLOB null_blob = data_blob_null;
1453 DATA_BLOB to_server;
1454 char *to_server_base64;
1455 const char *my_mechs[] = {OID_NTLMSSP, NULL};
1456 TALLOC_CTX *ctx = talloc_tos();
1457
1458 DEBUG(10, ("Got spnego negTokenInit with NTLMSSP\n"));
1459
1460 if (client_ntlmssp_state != NULL) {
1461 DEBUG(1, ("Request for initial SPNEGO request where "
1462 "we already have a state\n"));
1463 return False;
1464 }
1465
1466 if (!client_ntlmssp_state) {
1467 if (!NT_STATUS_IS_OK(status = ntlm_auth_start_ntlmssp_client(&client_ntlmssp_state))) {
1468 x_fprintf(x_stdout, "BH %s\n", nt_errstr(status));
1469 return False;
1470 }
1471 }
1472
1473
1474 if (opt_password == NULL) {
1475
1476 /* Request a password from the calling process. After
1477 sending it, the calling process should retry with
1478 the negTokenInit. */
1479
1480 DEBUG(10, ("Requesting password\n"));
1481 x_fprintf(x_stdout, "PW\n");
1482 return True;
1483 }
1484
1485 spnego.type = SPNEGO_NEG_TOKEN_INIT;
1486 spnego.negTokenInit.mechTypes = my_mechs;
1487 spnego.negTokenInit.reqFlags = data_blob_null;
1488 spnego.negTokenInit.reqFlagsPadding = 0;
1489 spnego.negTokenInit.mechListMIC = null_blob;
1490
1491 status = ntlmssp_update(client_ntlmssp_state, null_blob,
1492 &spnego.negTokenInit.mechToken);
1493
1494 if ( !(NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED) ||
1495 NT_STATUS_IS_OK(status)) ) {
1496 DEBUG(1, ("Expected OK or MORE_PROCESSING_REQUIRED, got: %s\n",
1497 nt_errstr(status)));
1498 ntlmssp_end(&client_ntlmssp_state);
1499 return False;
1500 }
1501
1502 spnego_write_data(ctx, &to_server, &spnego);
1503 data_blob_free(&spnego.negTokenInit.mechToken);
1504
1505 to_server_base64 = base64_encode_data_blob(talloc_tos(), to_server);
1506 data_blob_free(&to_server);
1507 x_fprintf(x_stdout, "KK %s\n", to_server_base64);
1508 TALLOC_FREE(to_server_base64);
1509 return True;
1510 }
1511
1512 static void manage_client_ntlmssp_targ(struct spnego_data spnego)
1513 {
1514 NTSTATUS status;
1515 DATA_BLOB null_blob = data_blob_null;
1516 DATA_BLOB request;
1517 DATA_BLOB to_server;
1518 char *to_server_base64;
1519 TALLOC_CTX *ctx = talloc_tos();
1520
1521 DEBUG(10, ("Got spnego negTokenTarg with NTLMSSP\n"));
1522
1523 if (client_ntlmssp_state == NULL) {
1524 DEBUG(1, ("Got NTLMSSP tArg without a client state\n"));
1525 x_fprintf(x_stdout, "BH Got NTLMSSP tArg without a client state\n");
1526 return;
1527 }
1528
1529 if (spnego.negTokenTarg.negResult == SPNEGO_REJECT) {
1530 x_fprintf(x_stdout, "NA\n");
1531 ntlmssp_end(&client_ntlmssp_state);
1532 return;
1533 }
1534
1535 if (spnego.negTokenTarg.negResult == SPNEGO_ACCEPT_COMPLETED) {
1536 x_fprintf(x_stdout, "AF\n");
1537 ntlmssp_end(&client_ntlmssp_state);
1538 return;
1539 }
1540
1541 status = ntlmssp_update(client_ntlmssp_state,
1542 spnego.negTokenTarg.responseToken,
1543 &request);
1544
1545 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1546 DEBUG(1, ("Expected MORE_PROCESSING_REQUIRED from "
1547 "ntlmssp_client_update, got: %s\n",
1548 nt_errstr(status)));
1549 x_fprintf(x_stdout, "BH Expected MORE_PROCESSING_REQUIRED from "
1550 "ntlmssp_client_update\n");
1551 data_blob_free(&request);
1552 ntlmssp_end(&client_ntlmssp_state);
1553 return;
1554 }
1555
1556 spnego.type = SPNEGO_NEG_TOKEN_TARG;
1557 spnego.negTokenTarg.negResult = SPNEGO_ACCEPT_INCOMPLETE;
1558 spnego.negTokenTarg.supportedMech = (char *)OID_NTLMSSP;
1559 spnego.negTokenTarg.responseToken = request;
1560 spnego.negTokenTarg.mechListMIC = null_blob;
1561
1562 spnego_write_data(ctx, &to_server, &spnego);
1563 data_blob_free(&request);
1564
1565 to_server_base64 = base64_encode_data_blob(talloc_tos(), to_server);
1566 data_blob_free(&to_server);
1567 x_fprintf(x_stdout, "KK %s\n", to_server_base64);
1568 TALLOC_FREE(to_server_base64);
1569 return;
1570 }
1571
1572 #ifdef HAVE_KRB5
1573
1574 static bool manage_client_krb5_init(struct spnego_data spnego)
1575 {
1576 char *principal;
1577 DATA_BLOB tkt, to_server;
1578 DATA_BLOB session_key_krb5 = data_blob_null;
1579 struct spnego_data reply;
1580 char *reply_base64;
1581 int retval;
1582
1583 const char *my_mechs[] = {OID_KERBEROS5_OLD, NULL};
1584 ssize_t len;
1585 TALLOC_CTX *ctx = talloc_tos();
1586
1587 if ( (spnego.negTokenInit.mechListMIC.data == NULL) ||
1588 (spnego.negTokenInit.mechListMIC.length == 0) ) {
1589 DEBUG(1, ("Did not get a principal for krb5\n"));
1590 return False;
1591 }
1592
1593 principal = (char *)SMB_MALLOC(
1594 spnego.negTokenInit.mechListMIC.length+1);
1595
1596 if (principal == NULL) {
1597 DEBUG(1, ("Could not malloc principal\n"));
1598 return False;
1599 }
1600
1601 memcpy(principal, spnego.negTokenInit.mechListMIC.data,
1602 spnego.negTokenInit.mechListMIC.length);
1603 principal[spnego.negTokenInit.mechListMIC.length] = '\0';
1604
1605 retval = cli_krb5_get_ticket(principal, 0, &tkt, &session_key_krb5, 0, NULL, NULL, NULL);
1606
1607 if (retval) {
1608 char *user = NULL;
1609
1610 /* Let's try to first get the TGT, for that we need a
1611 password. */
1612
1613 if (opt_password == NULL) {
1614 DEBUG(10, ("Requesting password\n"));
1615 x_fprintf(x_stdout, "PW\n");
1616 return True;
1617 }
1618
1619 user = talloc_asprintf(talloc_tos(), "%s@%s", opt_username, opt_domain);
1620 if (!user) {
1621 return false;
1622 }
1623
1624 if ((retval = kerberos_kinit_password(user, opt_password, 0, NULL))) {
1625 DEBUG(10, ("Requesting TGT failed: %s\n", error_message(retval)));
1626 return False;
1627 }
1628
1629 retval = cli_krb5_get_ticket(principal, 0, &tkt, &session_key_krb5, 0, NULL, NULL, NULL);
1630
1631 if (retval) {
1632 DEBUG(10, ("Kinit suceeded, but getting a ticket failed: %s\n", error_message(retval)));
1633 return False;
1634 }
1635 }
1636
1637 data_blob_free(&session_key_krb5);
1638
1639 ZERO_STRUCT(reply);
1640
1641 reply.type = SPNEGO_NEG_TOKEN_INIT;
1642 reply.negTokenInit.mechTypes = my_mechs;
1643 reply.negTokenInit.reqFlags = data_blob_null;
1644 reply.negTokenInit.reqFlagsPadding = 0;
1645 reply.negTokenInit.mechToken = tkt;
1646 reply.negTokenInit.mechListMIC = data_blob_null;
1647
1648 len = spnego_write_data(ctx, &to_server, &reply);
1649 data_blob_free(&tkt);
1650
1651 if (len == -1) {
1652 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1653 return False;
1654 }
1655
1656 reply_base64 = base64_encode_data_blob(talloc_tos(), to_server);
1657 x_fprintf(x_stdout, "KK %s *\n", reply_base64);
1658
1659 TALLOC_FREE(reply_base64);
1660 data_blob_free(&to_server);
1661 DEBUG(10, ("sent GSS-SPNEGO KERBEROS5 negTokenInit\n"));
1662 return True;
1663 }
1664
1665 static void manage_client_krb5_targ(struct spnego_data spnego)
1666 {
1667 switch (spnego.negTokenTarg.negResult) {
1668 case SPNEGO_ACCEPT_INCOMPLETE:
1669 DEBUG(1, ("Got a Kerberos negTokenTarg with ACCEPT_INCOMPLETE\n"));
1670 x_fprintf(x_stdout, "BH Got a Kerberos negTokenTarg with "
1671 "ACCEPT_INCOMPLETE\n");
1672 break;
1673 case SPNEGO_ACCEPT_COMPLETED:
1674 DEBUG(10, ("Accept completed\n"));
1675 x_fprintf(x_stdout, "AF\n");
1676 break;
1677 case SPNEGO_REJECT:
1678 DEBUG(10, ("Rejected\n"));
1679 x_fprintf(x_stdout, "NA\n");
1680 break;
1681 default:
1682 DEBUG(1, ("Got an invalid negTokenTarg\n"));
1683 x_fprintf(x_stdout, "AF\n");
1684 }
1685 }
1686
1687 #endif
1688
1689 static void manage_gss_spnego_client_request(struct ntlm_auth_state *state,
1690 char *buf, int length)
1691 {
1692 DATA_BLOB request;
1693 struct spnego_data spnego;
1694 ssize_t len;
1695 TALLOC_CTX *ctx = talloc_tos();
1696
1697 if (!opt_username || !*opt_username) {
1698 x_fprintf(x_stderr, "username must be specified!\n\n");
1699 exit(1);
1700 }
1701
1702 if (strlen(buf) <= 3) {
1703 DEBUG(1, ("SPNEGO query [%s] too short\n", buf));
1704 x_fprintf(x_stdout, "BH SPNEGO query too short\n");
1705 return;
1706 }
1707
1708 request = base64_decode_data_blob(buf+3);
1709
1710 if (strncmp(buf, "PW ", 3) == 0) {
1711
1712 /* We asked for a password and obviously got it :-) */
1713
1714 opt_password = SMB_STRNDUP((const char *)request.data, request.length);
1715
1716 if (opt_password == NULL) {
1717 DEBUG(1, ("Out of memory\n"));
1718 x_fprintf(x_stdout, "BH Out of memory\n");
1719 data_blob_free(&request);
1720 return;
1721 }
1722
1723 x_fprintf(x_stdout, "OK\n");
1724 data_blob_free(&request);
1725 return;
1726 }
1727
1728 if ( (strncmp(buf, "TT ", 3) != 0) &&
1729 (strncmp(buf, "AF ", 3) != 0) &&
1730 (strncmp(buf, "NA ", 3) != 0) ) {
1731 DEBUG(1, ("SPNEGO request [%s] invalid\n", buf));
1732 x_fprintf(x_stdout, "BH SPNEGO request invalid\n");
1733 data_blob_free(&request);
1734 return;
1735 }
1736
1737 /* So we got a server challenge to generate a SPNEGO
1738 client-to-server request... */
1739
1740 len = spnego_read_data(ctx, request, &spnego);
1741 data_blob_free(&request);
1742
1743 if (len == -1) {
1744 DEBUG(1, ("Could not read SPNEGO data for [%s]\n", buf));
1745 x_fprintf(x_stdout, "BH Could not read SPNEGO data\n");
1746 return;
1747 }
1748
1749 if (spnego.type == SPNEGO_NEG_TOKEN_INIT) {
1750
1751 /* The server offers a list of mechanisms */
1752
1753 const char **mechType = (const char **)spnego.negTokenInit.mechTypes;
1754
1755 while (*mechType != NULL) {
1756
1757 #ifdef HAVE_KRB5
1758 if ( (strcmp(*mechType, OID_KERBEROS5_OLD) == 0) ||
1759 (strcmp(*mechType, OID_KERBEROS5) == 0) ) {
1760 if (manage_client_krb5_init(spnego))
1761 goto out;
1762 }
1763 #endif
1764
1765 if (strcmp(*mechType, OID_NTLMSSP) == 0) {
1766 if (manage_client_ntlmssp_init(spnego))
1767 goto out;
1768 }
1769
1770 mechType++;
1771 }
1772
1773 DEBUG(1, ("Server offered no compatible mechanism\n"));
1774 x_fprintf(x_stdout, "BH Server offered no compatible mechanism\n");
1775 return;
1776 }
1777
1778 if (spnego.type == SPNEGO_NEG_TOKEN_TARG) {
1779
1780 if (spnego.negTokenTarg.supportedMech == NULL) {
1781 /* On accept/reject Windows does not send the
1782 mechanism anymore. Handle that here and
1783 shut down the mechanisms. */
1784
1785 switch (spnego.negTokenTarg.negResult) {
1786 case SPNEGO_ACCEPT_COMPLETED:
1787 x_fprintf(x_stdout, "AF\n");
1788 break;
1789 case SPNEGO_REJECT:
1790 x_fprintf(x_stdout, "NA\n");
1791 break;
1792 default:
1793 DEBUG(1, ("Got a negTokenTarg with no mech and an "
1794 "unknown negResult: %d\n",
1795 spnego.negTokenTarg.negResult));
1796 x_fprintf(x_stdout, "BH Got a negTokenTarg with"
1797 " no mech and an unknown "
1798 "negResult\n");
1799 }
1800
1801 ntlmssp_end(&client_ntlmssp_state);
1802 goto out;
1803 }
1804
1805 if (strcmp(spnego.negTokenTarg.supportedMech,
1806 OID_NTLMSSP) == 0) {
1807 manage_client_ntlmssp_targ(spnego);
1808 goto out;
1809 }
1810
1811 #if HAVE_KRB5
1812 if (strcmp(spnego.negTokenTarg.supportedMech,
1813 OID_KERBEROS5_OLD) == 0) {
1814 manage_client_krb5_targ(spnego);
1815 goto out;
1816 }
1817 #endif
1818
1819 }
1820
1821 DEBUG(1, ("Got an SPNEGO token I could not handle [%s]!\n", buf));
1822 x_fprintf(x_stdout, "BH Got an SPNEGO token I could not handle\n");
1823 return;
1824
1825 out:
1826 spnego_free_data(&spnego);
1827 return;
1828 }
1829
1830 static void manage_ntlm_server_1_request(struct ntlm_auth_state *state,
1831 char *buf, int length)
1832 {
1833 char *request, *parameter;
1834 static DATA_BLOB challenge;
1835 static DATA_BLOB lm_response;
1836 static DATA_BLOB nt_response;
1837 static char *full_username;
1838 static char *username;
1839 static char *domain;
1840 static char *plaintext_password;
1841 static bool ntlm_server_1_user_session_key;
1842 static bool ntlm_server_1_lm_session_key;
1843
1844 if (strequal(buf, ".")) {
1845 if (!full_username && !username) {
1846 x_fprintf(x_stdout, "Error: No username supplied!\n");
1847 } else if (plaintext_password) {
1848 /* handle this request as plaintext */
1849 if (!full_username) {
1850 if (asprintf(&full_username, "%s%c%s", domain, winbind_separator(), username) == -1) {
1851 x_fprintf(x_stdout, "Error: Out of memory in asprintf!\n.\n");
1852 return;
1853 }
1854 }
1855 if (check_plaintext_auth(full_username, plaintext_password, False)) {
1856 x_fprintf(x_stdout, "Authenticated: Yes\n");
1857 } else {
1858 x_fprintf(x_stdout, "Authenticated: No\n");
1859 }
1860 } else if (!lm_response.data && !nt_response.data) {
1861 x_fprintf(x_stdout, "Error: No password supplied!\n");
1862 } else if (!challenge.data) {
1863 x_fprintf(x_stdout, "Error: No lanman-challenge supplied!\n");
1864 } else {
1865 char *error_string = NULL;
1866 uchar lm_key[8];
1867 uchar user_session_key[16];
1868 uint32 flags = 0;
1869
1870 if (full_username && !username) {
1871 fstring fstr_user;
1872 fstring fstr_domain;
1873
1874 if (!parse_ntlm_auth_domain_user(full_username, fstr_user, fstr_domain)) {
1875 /* username might be 'tainted', don't print into our new-line deleimianted stream */
1876 x_fprintf(x_stdout, "Error: Could not parse into domain and username\n");
1877 }
1878 SAFE_FREE(username);
1879 SAFE_FREE(domain);
1880 username = smb_xstrdup(fstr_user);
1881 domain = smb_xstrdup(fstr_domain);
1882 }
1883
1884 if (!domain) {
1885 domain = smb_xstrdup(get_winbind_domain());
1886 }
1887
1888 if (ntlm_server_1_lm_session_key)
1889 flags |= WBFLAG_PAM_LMKEY;
1890
1891 if (ntlm_server_1_user_session_key)
1892 flags |= WBFLAG_PAM_USER_SESSION_KEY;
1893
1894 if (!NT_STATUS_IS_OK(
1895 contact_winbind_auth_crap(username,
1896 domain,
1897 global_myname(),
1898 &challenge,
1899 &lm_response,
1900 &nt_response,
1901 flags,
1902 lm_key,
1903 user_session_key,
1904 &error_string,
1905 NULL))) {
1906
1907 x_fprintf(x_stdout, "Authenticated: No\n");
1908 x_fprintf(x_stdout, "Authentication-Error: %s\n.\n", error_string);
1909 } else {
1910 static char zeros[16];
1911 char *hex_lm_key;
1912 char *hex_user_session_key;
1913
1914 x_fprintf(x_stdout, "Authenticated: Yes\n");
1915
1916 if (ntlm_server_1_lm_session_key
1917 && (memcmp(zeros, lm_key,
1918 sizeof(lm_key)) != 0)) {
1919 hex_lm_key = hex_encode_talloc(NULL,
1920 (const unsigned char *)lm_key,
1921 sizeof(lm_key));
1922 x_fprintf(x_stdout, "LANMAN-Session-Key: %s\n", hex_lm_key);
1923 TALLOC_FREE(hex_lm_key);
1924 }
1925
1926 if (ntlm_server_1_user_session_key
1927 && (memcmp(zeros, user_session_key,
1928 sizeof(user_session_key)) != 0)) {
1929 hex_user_session_key = hex_encode_talloc(NULL,
1930 (const unsigned char *)user_session_key,
1931 sizeof(user_session_key));
1932 x_fprintf(x_stdout, "User-Session-Key: %s\n", hex_user_session_key);
1933 TALLOC_FREE(hex_user_session_key);
1934 }
1935 }
1936 SAFE_FREE(error_string);
1937 }
1938 /* clear out the state */
1939 challenge = data_blob_null;
1940 nt_response = data_blob_null;
1941 lm_response = data_blob_null;
1942 SAFE_FREE(full_username);
1943 SAFE_FREE(username);
1944 SAFE_FREE(domain);
1945 SAFE_FREE(plaintext_password);
1946 ntlm_server_1_user_session_key = False;
1947 ntlm_server_1_lm_session_key = False;
1948 x_fprintf(x_stdout, ".\n");
1949
1950 return;
1951 }
1952
1953 request = buf;
1954
1955 /* Indicates a base64 encoded structure */
1956 parameter = strstr_m(request, ":: ");
1957 if (!parameter) {
1958 parameter = strstr_m(request, ": ");
1959
1960 if (!parameter) {
1961 DEBUG(0, ("Parameter not found!\n"));
1962 x_fprintf(x_stdout, "Error: Parameter not found!\n.\n");
1963 return;
1964 }
1965
1966 parameter[0] ='\0';
1967 parameter++;
1968 parameter[0] ='\0';
1969 parameter++;
1970
1971 } else {
1972 parameter[0] ='\0';
1973 parameter++;
1974 parameter[0] ='\0';
1975 parameter++;
1976 parameter[0] ='\0';
1977 parameter++;
1978
1979 base64_decode_inplace(parameter);
1980 }
1981
1982 if (strequal(request, "LANMAN-Challenge")) {
1983 challenge = strhex_to_data_blob(NULL, parameter);
1984 if (challenge.length != 8) {
1985 x_fprintf(x_stdout, "Error: hex decode of %s failed! (got %d bytes, expected 8)\n.\n",
1986 parameter,
1987 (int)challenge.length);
1988 challenge = data_blob_null;
1989 }
1990 } else if (strequal(request, "NT-Response")) {
1991 nt_response = strhex_to_data_blob(NULL, parameter);
1992 if (nt_response.length < 24) {
1993 x_fprintf(x_stdout, "Error: hex decode of %s failed! (only got %d bytes, needed at least 24)\n.\n",
1994 parameter,
1995 (int)nt_response.length);
1996 nt_response = data_blob_null;
1997 }
1998 } else if (strequal(request, "LANMAN-Response")) {
1999 lm_response = strhex_to_data_blob(NULL, parameter);
2000 if (lm_response.length != 24) {
2001 x_fprintf(x_stdout, "Error: hex decode of %s failed! (got %d bytes, expected 24)\n.\n",
2002 parameter,
2003 (int)lm_response.length);
2004 lm_response = data_blob_null;
2005 }
2006 } else if (strequal(request, "Password")) {
2007 plaintext_password = smb_xstrdup(parameter);
2008 } else if (strequal(request, "NT-Domain")) {
2009 domain = smb_xstrdup(parameter);
2010 } else if (strequal(request, "Username")) {
2011 username = smb_xstrdup(parameter);
2012 } else if (strequal(request, "Full-Username")) {
2013 full_username = smb_xstrdup(parameter);
2014 } else if (strequal(request, "Request-User-Session-Key")) {
2015 ntlm_server_1_user_session_key = strequal(parameter, "Yes");
2016 } else if (strequal(request, "Request-LanMan-Session-Key")) {
2017 ntlm_server_1_lm_session_key = strequal(parameter, "Yes");
2018 } else {
2019 x_fprintf(x_stdout, "Error: Unknown request %s\n.\n", request);
2020 }
2021 }
2022
2023 static void manage_ntlm_change_password_1_request(struct ntlm_auth_state *state,
2024 char *buf, int length)
2025 {
2026 char *request, *parameter;
2027 static DATA_BLOB new_nt_pswd;
2028 static DATA_BLOB old_nt_hash_enc;
2029 static DATA_BLOB new_lm_pswd;
2030 static DATA_BLOB old_lm_hash_enc;
2031 static char *full_username = NULL;
2032 static char *username = NULL;
2033 static char *domain = NULL;
2034 static char *newpswd = NULL;
2035 static char *oldpswd = NULL;
2036
2037 if (strequal(buf, ".")) {
2038 if(newpswd && oldpswd) {
2039 uchar old_nt_hash[16];
2040 uchar old_lm_hash[16];
2041 uchar new_nt_hash[16];
2042 uchar new_lm_hash[16];
2043
2044 new_nt_pswd = data_blob(NULL, 516);
2045 old_nt_hash_enc = data_blob(NULL, 16);
2046
2047 /* Calculate the MD4 hash (NT compatible) of the
2048 * password */
2049 E_md4hash(oldpswd, old_nt_hash);
2050 E_md4hash(newpswd, new_nt_hash);
2051
2052 /* E_deshash returns false for 'long'
2053 passwords (> 14 DOS chars).
2054
2055 Therefore, don't send a buffer
2056 encrypted with the truncated hash
2057 (it could allow an even easier
2058 attack on the password)
2059
2060 Likewise, obey the admin's restriction
2061 */
2062
2063 if (lp_client_lanman_auth() &&
2064 E_deshash(newpswd, new_lm_hash) &&
2065 E_deshash(oldpswd, old_lm_hash)) {
2066 new_lm_pswd = data_blob(NULL, 516);
2067 old_lm_hash_enc = data_blob(NULL, 16);
2068 encode_pw_buffer(new_lm_pswd.data, newpswd,
2069 STR_UNICODE);
2070
2071 arcfour_crypt(new_lm_pswd.data, old_nt_hash, 516);
2072 E_old_pw_hash(new_nt_hash, old_lm_hash,
2073 old_lm_hash_enc.data);
2074 } else {
2075 new_lm_pswd.data = NULL;
2076 new_lm_pswd.length = 0;
2077 old_lm_hash_enc.data = NULL;
2078 old_lm_hash_enc.length = 0;
2079 }
2080
2081 encode_pw_buffer(new_nt_pswd.data, newpswd,
2082 STR_UNICODE);
2083
2084 arcfour_crypt(new_nt_pswd.data, old_nt_hash, 516);
2085 E_old_pw_hash(new_nt_hash, old_nt_hash,
2086 old_nt_hash_enc.data);
2087 }
2088
2089 if (!full_username && !username) {
2090 x_fprintf(x_stdout, "Error: No username supplied!\n");
2091 } else if ((!new_nt_pswd.data || !old_nt_hash_enc.data) &&
2092 (!new_lm_pswd.data || old_lm_hash_enc.data) ) {
2093 x_fprintf(x_stdout, "Error: No NT or LM password "
2094 "blobs supplied!\n");
2095 } else {
2096 char *error_string = NULL;
2097
2098 if (full_username && !username) {
2099 fstring fstr_user;
2100 fstring fstr_domain;
2101
2102 if (!parse_ntlm_auth_domain_user(full_username,
2103 fstr_user,
2104 fstr_domain)) {
2105 /* username might be 'tainted', don't
2106 * print into our new-line
2107 * deleimianted stream */
2108 x_fprintf(x_stdout, "Error: Could not "
2109 "parse into domain and "
2110 "username\n");
2111 SAFE_FREE(username);
2112 username = smb_xstrdup(full_username);
2113 } else {
2114 SAFE_FREE(username);
2115 SAFE_FREE(domain);
2116 username = smb_xstrdup(fstr_user);
2117 domain = smb_xstrdup(fstr_domain);
2118 }
2119
2120 }
2121
2122 if(!NT_STATUS_IS_OK(contact_winbind_change_pswd_auth_crap(
2123 username, domain,
2124 new_nt_pswd,
2125 old_nt_hash_enc,
2126 new_lm_pswd,
2127 old_lm_hash_enc,
2128 &error_string))) {
2129 x_fprintf(x_stdout, "Password-Change: No\n");
2130 x_fprintf(x_stdout, "Password-Change-Error: "
2131 "%s\n.\n", error_string);
2132 } else {
2133 x_fprintf(x_stdout, "Password-Change: Yes\n");
2134 }
2135
2136 SAFE_FREE(error_string);
2137 }
2138 /* clear out the state */
2139 new_nt_pswd = data_blob_null;
2140 old_nt_hash_enc = data_blob_null;
2141 new_lm_pswd = data_blob_null;
2142 old_nt_hash_enc = data_blob_null;
2143 SAFE_FREE(full_username);
2144 SAFE_FREE(username);
2145 SAFE_FREE(domain);
2146 SAFE_FREE(newpswd);
2147 SAFE_FREE(oldpswd);
2148 x_fprintf(x_stdout, ".\n");
2149
2150 return;
2151 }
2152
2153 request = buf;
2154
2155 /* Indicates a base64 encoded structure */
2156 parameter = strstr_m(request, ":: ");
2157 if (!parameter) {
2158 parameter = strstr_m(request, ": ");
2159
2160 if (!parameter) {
2161 DEBUG(0, ("Parameter not found!\n"));
2162 x_fprintf(x_stdout, "Error: Parameter not found!\n.\n");
2163 return;
2164 }
2165
2166 parameter[0] ='\0';
2167 parameter++;
2168 parameter[0] ='\0';
2169 parameter++;
2170 } else {
2171 parameter[0] ='\0';
2172 parameter++;
2173 parameter[0] ='\0';
2174 parameter++;
2175 parameter[0] ='\0';
2176 parameter++;
2177
2178 base64_decode_inplace(parameter);
2179 }
2180
2181 if (strequal(request, "new-nt-password-blob")) {
2182 new_nt_pswd = strhex_to_data_blob(NULL, parameter);
2183 if (new_nt_pswd.length != 516) {
2184 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2185 "(got %d bytes, expected 516)\n.\n",
2186 parameter,
2187 (int)new_nt_pswd.length);
2188 new_nt_pswd = data_blob_null;
2189 }
2190 } else if (strequal(request, "old-nt-hash-blob")) {
2191 old_nt_hash_enc = strhex_to_data_blob(NULL, parameter);
2192 if (old_nt_hash_enc.length != 16) {
2193 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2194 "(got %d bytes, expected 16)\n.\n",
2195 parameter,
2196 (int)old_nt_hash_enc.length);
2197 old_nt_hash_enc = data_blob_null;
2198 }
2199 } else if (strequal(request, "new-lm-password-blob")) {
2200 new_lm_pswd = strhex_to_data_blob(NULL, parameter);
2201 if (new_lm_pswd.length != 516) {
2202 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2203 "(got %d bytes, expected 516)\n.\n",
2204 parameter,
2205 (int)new_lm_pswd.length);
2206 new_lm_pswd = data_blob_null;
2207 }
2208 }
2209 else if (strequal(request, "old-lm-hash-blob")) {
2210 old_lm_hash_enc = strhex_to_data_blob(NULL, parameter);
2211 if (old_lm_hash_enc.length != 16)
2212 {
2213 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2214 "(got %d bytes, expected 16)\n.\n",
2215 parameter,
2216 (int)old_lm_hash_enc.length);
2217 old_lm_hash_enc = data_blob_null;
2218 }
2219 } else if (strequal(request, "nt-domain")) {
2220 domain = smb_xstrdup(parameter);
2221 } else if(strequal(request, "username")) {
2222 username = smb_xstrdup(parameter);
2223 } else if(strequal(request, "full-username")) {
2224 username = smb_xstrdup(parameter);
2225 } else if(strequal(request, "new-password")) {
2226 newpswd = smb_xstrdup(parameter);
2227 } else if (strequal(request, "old-password")) {
2228 oldpswd = smb_xstrdup(parameter);
2229 } else {
2230 x_fprintf(x_stdout, "Error: Unknown request %s\n.\n", request);
2231 }
2232 }
2233
2234 static void manage_squid_request(struct ntlm_auth_state *state,
2235 stdio_helper_function fn)
2236 {
2237 char *buf;
2238 char tmp[INITIAL_BUFFER_SIZE+1];
2239 int length, buf_size = 0;
2240 char *c;
2241
2242 buf = talloc_strdup(state->mem_ctx, "");
2243 if (!buf) {
2244 DEBUG(0, ("Failed to allocate input buffer.\n"));
2245 x_fprintf(x_stderr, "ERR\n");
2246 exit(1);
2247 }
2248
2249 do {
2250
2251 /* this is not a typo - x_fgets doesn't work too well under
2252 * squid */
2253 if (fgets(tmp, sizeof(tmp)-1, stdin) == NULL) {
2254 if (ferror(stdin)) {
2255 DEBUG(1, ("fgets() failed! dying..... errno=%d "
2256 "(%s)\n", ferror(stdin),
2257 strerror(ferror(stdin))));
2258
2259 exit(1);
2260 }
2261 exit(0);
2262 }
2263
2264 buf = talloc_strdup_append_buffer(buf, tmp);
2265 buf_size += INITIAL_BUFFER_SIZE;
2266
2267 if (buf_size > MAX_BUFFER_SIZE) {
2268 DEBUG(2, ("Oversized message\n"));
2269 x_fprintf(x_stderr, "ERR\n");
2270 talloc_free(buf);
2271 return;
2272 }
2273
2274 c = strchr(buf, '\n');
2275 } while (c == NULL);
2276
2277 *c = '\0';
2278 length = c-buf;
2279
2280 DEBUG(10, ("Got '%s' from squid (length: %d).\n",buf,length));
2281
2282 if (buf[0] == '\0') {
2283 DEBUG(2, ("Invalid Request\n"));
2284 x_fprintf(x_stderr, "ERR\n");
2285 talloc_free(buf);
2286 return;
2287 }
2288
2289 fn(state, buf, length);
2290 talloc_free(buf);
2291 }
2292
2293
2294 static void squid_stream(enum stdio_helper_mode stdio_mode, stdio_helper_function fn) {
2295 TALLOC_CTX *mem_ctx;
2296 struct ntlm_auth_state *state;
2297
2298 /* initialize FDescs */
2299 x_setbuf(x_stdout, NULL);
2300 x_setbuf(x_stderr, NULL);
2301
2302 mem_ctx = talloc_init("ntlm_auth");
2303 if (!mem_ctx) {
2304 DEBUG(0, ("squid_stream: Failed to create talloc context\n"));
2305 x_fprintf(x_stderr, "ERR\n");
2306 exit(1);
2307 }
2308
2309 state = talloc_zero(mem_ctx, struct ntlm_auth_state);
2310 if (!state) {
2311 DEBUG(0, ("squid_stream: Failed to talloc ntlm_auth_state\n"));
2312 x_fprintf(x_stderr, "ERR\n");
2313 exit(1);
2314 }
2315
2316 state->mem_ctx = mem_ctx;
2317 state->helper_mode = stdio_mode;
2318
2319 while(1) {
2320 manage_squid_request(state, fn);
2321 }
2322 }
2323
2324
2325 /* Authenticate a user with a challenge/response */
2326
2327 static bool check_auth_crap(void)
2328 {
2329 NTSTATUS nt_status;
2330 uint32 flags = 0;
2331 char lm_key[8];
2332 char user_session_key[16];
2333 char *hex_lm_key;
2334 char *hex_user_session_key;
2335 char *error_string;
2336 static uint8 zeros[16];
2337
2338 x_setbuf(x_stdout, NULL);
2339
2340 if (request_lm_key)
2341 flags |= WBFLAG_PAM_LMKEY;
2342
2343 if (request_user_session_key)
2344 flags |= WBFLAG_PAM_USER_SESSION_KEY;
2345
2346 flags |= WBFLAG_PAM_NT_STATUS_SQUASH;
2347
2348 nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
2349 opt_workstation,
2350 &opt_challenge,
2351 &opt_lm_response,
2352 &opt_nt_response,
2353 flags,
2354 (unsigned char *)lm_key,
2355 (unsigned char *)user_session_key,
2356 &error_string, NULL);
2357
2358 if (!NT_STATUS_IS_OK(nt_status)) {
2359 x_fprintf(x_stdout, "%s (0x%x)\n",
2360 error_string,
2361 NT_STATUS_V(nt_status));
2362 SAFE_FREE(error_string);
2363 return False;
2364 }
2365
2366 if (request_lm_key
2367 && (memcmp(zeros, lm_key,
2368 sizeof(lm_key)) != 0)) {
2369 hex_lm_key = hex_encode_talloc(talloc_tos(), (const unsigned char *)lm_key,
2370 sizeof(lm_key));
2371 x_fprintf(x_stdout, "LM_KEY: %s\n", hex_lm_key);
2372 TALLOC_FREE(hex_lm_key);
2373 }
2374 if (request_user_session_key
2375 && (memcmp(zeros, user_session_key,
2376 sizeof(user_session_key)) != 0)) {
2377 hex_user_session_key = hex_encode_talloc(talloc_tos(), (const unsigned char *)user_session_key,
2378 sizeof(user_session_key));
2379 x_fprintf(x_stdout, "NT_KEY: %s\n", hex_user_session_key);
2380 TALLOC_FREE(hex_user_session_key);
2381 }
2382
2383 return True;
2384 }
2385
2386 /* Main program */
2387
2388 enum {
2389 OPT_USERNAME = 1000,
2390 OPT_DOMAIN,
2391 OPT_WORKSTATION,
2392 OPT_CHALLENGE,
2393 OPT_RESPONSE,
2394 OPT_LM,
2395 OPT_NT,
2396 OPT_PASSWORD,
2397 OPT_LM_KEY,
2398 OPT_USER_SESSION_KEY,
2399 OPT_DIAGNOSTICS,
2400 OPT_REQUIRE_MEMBERSHIP,
2401 OPT_USE_CACHED_CREDS,
2402 OPT_PAM_WINBIND_CONF
2403 };
2404
2405 int main(int argc, const char **argv)
2406 {
2407 TALLOC_CTX *frame = talloc_stackframe();
2408 int opt;
2409 static const char *helper_protocol;
2410 static int diagnostics;
2411
2412 static const char *hex_challenge;
2413 static const char *hex_lm_response;
2414 static const char *hex_nt_response;
2415
2416 poptContext pc;
2417
2418 /* NOTE: DO NOT change this interface without considering the implications!
2419 This is an external interface, which other programs will use to interact
2420 with this helper.
2421 */
2422
2423 /* We do not use single-letter command abbreviations, because they harm future
2424 interface stability. */
2425
2426 struct poptOption long_options[] = {
2427 POPT_AUTOHELP
2428 { "helper-protocol", 0, POPT_ARG_STRING, &helper_protocol, OPT_DOMAIN, "operate as a stdio-based helper", "helper protocol to use"},
2429 { "username", 0, POPT_ARG_STRING, &opt_username, OPT_USERNAME, "username"},
2430 { "domain", 0, POPT_ARG_STRING, &opt_domain, OPT_DOMAIN, "domain name"},
2431 { "workstation", 0, POPT_ARG_STRING, &opt_workstation, OPT_WORKSTATION, "workstation"},
2432 { "challenge", 0, POPT_ARG_STRING, &hex_challenge, OPT_CHALLENGE, "challenge (HEX encoded)"},
2433 { "lm-response", 0, POPT_ARG_STRING, &hex_lm_response, OPT_LM, "LM Response to the challenge (HEX encoded)"},
2434 { "nt-response", 0, POPT_ARG_STRING, &hex_nt_response, OPT_NT, "NT or NTLMv2 Response to the challenge (HEX encoded)"},
2435 { "password", 0, POPT_ARG_STRING, &opt_password, OPT_PASSWORD, "User's plaintext password"},
2436 { "request-lm-key", 0, POPT_ARG_NONE, &request_lm_key, OPT_LM_KEY, "Retrieve LM session key"},
2437 { "request-nt-key", 0, POPT_ARG_NONE, &request_user_session_key, OPT_USER_SESSION_KEY, "Retrieve User (NT) session key"},
2438 { "use-cached-creds", 0, POPT_ARG_NONE, &use_cached_creds, OPT_USE_CACHED_CREDS, "Use cached credentials if no password is given"},
2439 { "diagnostics", 0, POPT_ARG_NONE, &diagnostics, OPT_DIAGNOSTICS, "Perform diagnostics on the authentictaion chain"},
2440 { "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" },
2441 { "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" },
2442 POPT_COMMON_CONFIGFILE
2443 POPT_COMMON_VERSION
2444 POPT_TABLEEND
2445 };
2446
2447 /* Samba client initialisation */
2448 load_case_tables();
2449
2450 dbf = x_stderr;
2451
2452 /* Parse options */
2453
2454 pc = poptGetContext("ntlm_auth", argc, argv, long_options, 0);
2455
2456 /* Parse command line options */
2457
2458 if (argc == 1) {
2459 poptPrintHelp(pc, stderr, 0);
2460 return 1;
2461 }
2462
2463 while((opt = poptGetNextOpt(pc)) != -1) {
2464 /* Get generic config options like --configfile */
2465 }
2466
2467 poptFreeContext(pc);
2468
2469 if (!lp_load(get_dyn_CONFIGFILE(), True, False, False, True)) {
2470 d_fprintf(stderr, "ntlm_auth: error opening config file %s. Error was %s\n",
2471 get_dyn_CONFIGFILE(), strerror(errno));
2472 exit(1);
2473 }
2474
2475 pc = poptGetContext(NULL, argc, (const char **)argv, long_options,
2476 POPT_CONTEXT_KEEP_FIRST);
2477
2478 while((opt = poptGetNextOpt(pc)) != -1) {
2479 switch (opt) {
2480 case OPT_CHALLENGE:
2481 opt_challenge = strhex_to_data_blob(NULL, hex_challenge);
2482 if (opt_challenge.length != 8) {
2483 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
2484 hex_challenge,
2485 (int)opt_challenge.length);
2486 exit(1);
2487 }
2488 break;
2489 case OPT_LM:
2490 opt_lm_response = strhex_to_data_blob(NULL, hex_lm_response);
2491 if (opt_lm_response.length != 24) {
2492 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
2493 hex_lm_response,
2494 (int)opt_lm_response.length);
2495 exit(1);
2496 }
2497 break;
2498
2499 case OPT_NT:
2500 opt_nt_response = strhex_to_data_blob(NULL, hex_nt_response);
2501 if (opt_nt_response.length < 24) {
2502 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
2503 hex_nt_response,
2504 (int)opt_nt_response.length);
2505 exit(1);
2506 }
2507 break;
2508
2509 case OPT_REQUIRE_MEMBERSHIP:
2510 if (StrnCaseCmp("S-", require_membership_of, 2) == 0) {
2511 require_membership_of_sid = require_membership_of;
2512 }
2513 break;
2514 }
2515 }
2516
2517 if (opt_username) {
2518 char *domain = SMB_STRDUP(opt_username);
2519 char *p = strchr_m(domain, *lp_winbind_separator());
2520 if (p) {
2521 opt_username = p+1;
2522 *p = '\0';
2523 if (opt_domain && !strequal(opt_domain, domain)) {
2524 x_fprintf(x_stderr, "Domain specified in username (%s) "
2525 "doesn't match specified domain (%s)!\n\n",
2526 domain, opt_domain);
2527 poptPrintHelp(pc, stderr, 0);
2528 exit(1);
2529 }
2530 opt_domain = domain;
2531 } else {
2532 SAFE_FREE(domain);
2533 }
2534 }
2535
2536 /* Note: if opt_domain is "" then send no domain */
2537 if (opt_domain == NULL) {
2538 opt_domain = get_winbind_domain();
2539 }
2540
2541 if (opt_workstation == NULL) {
2542 opt_workstation = "";
2543 }
2544
2545 if (helper_protocol) {
2546 int i;
2547 for (i=0; i<NUM_HELPER_MODES; i++) {
2548 if (strcmp(helper_protocol, stdio_helper_protocols[i].name) == 0) {
2549 squid_stream(stdio_helper_protocols[i].mode, stdio_helper_protocols[i].fn);
2550 exit(0);
2551 }
2552 }
2553 x_fprintf(x_stderr, "unknown helper protocol [%s]\n\nValid helper protools:\n\n", helper_protocol);
2554
2555 for (i=0; i<NUM_HELPER_MODES; i++) {
2556 x_fprintf(x_stderr, "%s\n", stdio_helper_protocols[i].name);
2557 }
2558
2559 exit(1);
2560 }
2561
2562 if (!opt_username || !*opt_username) {
2563 x_fprintf(x_stderr, "username must be specified!\n\n");
2564 poptPrintHelp(pc, stderr, 0);
2565 exit(1);
2566 }
2567
2568 if (opt_challenge.length) {
2569 if (!check_auth_crap()) {
2570 exit(1);
2571 }
2572 exit(0);
2573 }
2574
2575 if (!opt_password) {
2576 opt_password = getpass("password: ");
2577 }
2578
2579 if (diagnostics) {
2580 if (!diagnose_ntlm_auth()) {
2581 return 1;
2582 }
2583 } else {
2584 fstring user;
2585
2586 fstr_sprintf(user, "%s%c%s", opt_domain, winbind_separator(), opt_username);
2587 if (!check_plaintext_auth(user, opt_password, True)) {
2588 return 1;
2589 }
2590 }
2591
2592 /* Exit code */
2593
2594 poptFreeContext(pc);
2595 TALLOC_FREE(frame);
2596 return 0;
2597 }
reg import