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[Samba.git] / source3 / utils / ntlm_auth.c
blob971ba96220c9d7a25ba14c3f352f75a7668b36e8
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 "../libcli/auth/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 TALLOC_FREE(*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 TALLOC_FREE(*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 TALLOC_FREE(*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 TALLOC_FREE(*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 TALLOC_FREE(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 TALLOC_FREE(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 TALLOC_FREE(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 TALLOC_FREE(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 TALLOC_FREE(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 TALLOC_FREE(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 TALLOC_FREE(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 TALLOC_FREE(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 TALLOC_FREE(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 TALLOC_FREE(client_ntlmssp_state);
1532 return;
1533 }
1534
1535 if (spnego.negTokenTarg.negResult == SPNEGO_ACCEPT_COMPLETED) {
1536 x_fprintf(x_stdout, "AF\n");
1537 TALLOC_FREE(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 TALLOC_FREE(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(ctx, principal, 0,
1606 &tkt, &session_key_krb5,
1607 0, NULL, NULL, NULL);
1608 if (retval) {
1609 char *user = NULL;
1610
1611 /* Let's try to first get the TGT, for that we need a
1612 password. */
1613
1614 if (opt_password == NULL) {
1615 DEBUG(10, ("Requesting password\n"));
1616 x_fprintf(x_stdout, "PW\n");
1617 return True;
1618 }
1619
1620 user = talloc_asprintf(talloc_tos(), "%s@%s", opt_username, opt_domain);
1621 if (!user) {
1622 return false;
1623 }
1624
1625 if ((retval = kerberos_kinit_password(user, opt_password, 0, NULL))) {
1626 DEBUG(10, ("Requesting TGT failed: %s\n", error_message(retval)));
1627 return False;
1628 }
1629
1630 retval = cli_krb5_get_ticket(ctx, principal, 0,
1631 &tkt, &session_key_krb5,
1632 0, NULL, NULL, NULL);
1633 if (retval) {
1634 DEBUG(10, ("Kinit suceeded, but getting a ticket failed: %s\n", error_message(retval)));
1635 return False;
1636 }
1637 }
1638
1639 data_blob_free(&session_key_krb5);
1640
1641 ZERO_STRUCT(reply);
1642
1643 reply.type = SPNEGO_NEG_TOKEN_INIT;
1644 reply.negTokenInit.mechTypes = my_mechs;
1645 reply.negTokenInit.reqFlags = data_blob_null;
1646 reply.negTokenInit.reqFlagsPadding = 0;
1647 reply.negTokenInit.mechToken = tkt;
1648 reply.negTokenInit.mechListMIC = data_blob_null;
1649
1650 len = spnego_write_data(ctx, &to_server, &reply);
1651 data_blob_free(&tkt);
1652
1653 if (len == -1) {
1654 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1655 return False;
1656 }
1657
1658 reply_base64 = base64_encode_data_blob(talloc_tos(), to_server);
1659 x_fprintf(x_stdout, "KK %s *\n", reply_base64);
1660
1661 TALLOC_FREE(reply_base64);
1662 data_blob_free(&to_server);
1663 DEBUG(10, ("sent GSS-SPNEGO KERBEROS5 negTokenInit\n"));
1664 return True;
1665 }
1666
1667 static void manage_client_krb5_targ(struct spnego_data spnego)
1668 {
1669 switch (spnego.negTokenTarg.negResult) {
1670 case SPNEGO_ACCEPT_INCOMPLETE:
1671 DEBUG(1, ("Got a Kerberos negTokenTarg with ACCEPT_INCOMPLETE\n"));
1672 x_fprintf(x_stdout, "BH Got a Kerberos negTokenTarg with "
1673 "ACCEPT_INCOMPLETE\n");
1674 break;
1675 case SPNEGO_ACCEPT_COMPLETED:
1676 DEBUG(10, ("Accept completed\n"));
1677 x_fprintf(x_stdout, "AF\n");
1678 break;
1679 case SPNEGO_REJECT:
1680 DEBUG(10, ("Rejected\n"));
1681 x_fprintf(x_stdout, "NA\n");
1682 break;
1683 default:
1684 DEBUG(1, ("Got an invalid negTokenTarg\n"));
1685 x_fprintf(x_stdout, "AF\n");
1686 }
1687 }
1688
1689 #endif
1690
1691 static void manage_gss_spnego_client_request(struct ntlm_auth_state *state,
1692 char *buf, int length)
1693 {
1694 DATA_BLOB request;
1695 struct spnego_data spnego;
1696 ssize_t len;
1697 TALLOC_CTX *ctx = talloc_tos();
1698
1699 if (!opt_username || !*opt_username) {
1700 x_fprintf(x_stderr, "username must be specified!\n\n");
1701 exit(1);
1702 }
1703
1704 if (strlen(buf) <= 3) {
1705 DEBUG(1, ("SPNEGO query [%s] too short\n", buf));
1706 x_fprintf(x_stdout, "BH SPNEGO query too short\n");
1707 return;
1708 }
1709
1710 request = base64_decode_data_blob(buf+3);
1711
1712 if (strncmp(buf, "PW ", 3) == 0) {
1713
1714 /* We asked for a password and obviously got it :-) */
1715
1716 opt_password = SMB_STRNDUP((const char *)request.data, request.length);
1717
1718 if (opt_password == NULL) {
1719 DEBUG(1, ("Out of memory\n"));
1720 x_fprintf(x_stdout, "BH Out of memory\n");
1721 data_blob_free(&request);
1722 return;
1723 }
1724
1725 x_fprintf(x_stdout, "OK\n");
1726 data_blob_free(&request);
1727 return;
1728 }
1729
1730 if ( (strncmp(buf, "TT ", 3) != 0) &&
1731 (strncmp(buf, "AF ", 3) != 0) &&
1732 (strncmp(buf, "NA ", 3) != 0) ) {
1733 DEBUG(1, ("SPNEGO request [%s] invalid\n", buf));
1734 x_fprintf(x_stdout, "BH SPNEGO request invalid\n");
1735 data_blob_free(&request);
1736 return;
1737 }
1738
1739 /* So we got a server challenge to generate a SPNEGO
1740 client-to-server request... */
1741
1742 len = spnego_read_data(ctx, request, &spnego);
1743 data_blob_free(&request);
1744
1745 if (len == -1) {
1746 DEBUG(1, ("Could not read SPNEGO data for [%s]\n", buf));
1747 x_fprintf(x_stdout, "BH Could not read SPNEGO data\n");
1748 return;
1749 }
1750
1751 if (spnego.type == SPNEGO_NEG_TOKEN_INIT) {
1752
1753 /* The server offers a list of mechanisms */
1754
1755 const char **mechType = (const char **)spnego.negTokenInit.mechTypes;
1756
1757 while (*mechType != NULL) {
1758
1759 #ifdef HAVE_KRB5
1760 if ( (strcmp(*mechType, OID_KERBEROS5_OLD) == 0) ||
1761 (strcmp(*mechType, OID_KERBEROS5) == 0) ) {
1762 if (manage_client_krb5_init(spnego))
1763 goto out;
1764 }
1765 #endif
1766
1767 if (strcmp(*mechType, OID_NTLMSSP) == 0) {
1768 if (manage_client_ntlmssp_init(spnego))
1769 goto out;
1770 }
1771
1772 mechType++;
1773 }
1774
1775 DEBUG(1, ("Server offered no compatible mechanism\n"));
1776 x_fprintf(x_stdout, "BH Server offered no compatible mechanism\n");
1777 return;
1778 }
1779
1780 if (spnego.type == SPNEGO_NEG_TOKEN_TARG) {
1781
1782 if (spnego.negTokenTarg.supportedMech == NULL) {
1783 /* On accept/reject Windows does not send the
1784 mechanism anymore. Handle that here and
1785 shut down the mechanisms. */
1786
1787 switch (spnego.negTokenTarg.negResult) {
1788 case SPNEGO_ACCEPT_COMPLETED:
1789 x_fprintf(x_stdout, "AF\n");
1790 break;
1791 case SPNEGO_REJECT:
1792 x_fprintf(x_stdout, "NA\n");
1793 break;
1794 default:
1795 DEBUG(1, ("Got a negTokenTarg with no mech and an "
1796 "unknown negResult: %d\n",
1797 spnego.negTokenTarg.negResult));
1798 x_fprintf(x_stdout, "BH Got a negTokenTarg with"
1799 " no mech and an unknown "
1800 "negResult\n");
1801 }
1802
1803 TALLOC_FREE(client_ntlmssp_state);
1804 goto out;
1805 }
1806
1807 if (strcmp(spnego.negTokenTarg.supportedMech,
1808 OID_NTLMSSP) == 0) {
1809 manage_client_ntlmssp_targ(spnego);
1810 goto out;
1811 }
1812
1813 #if HAVE_KRB5
1814 if (strcmp(spnego.negTokenTarg.supportedMech,
1815 OID_KERBEROS5_OLD) == 0) {
1816 manage_client_krb5_targ(spnego);
1817 goto out;
1818 }
1819 #endif
1820
1821 }
1822
1823 DEBUG(1, ("Got an SPNEGO token I could not handle [%s]!\n", buf));
1824 x_fprintf(x_stdout, "BH Got an SPNEGO token I could not handle\n");
1825 return;
1826
1827 out:
1828 spnego_free_data(&spnego);
1829 return;
1830 }
1831
1832 static void manage_ntlm_server_1_request(struct ntlm_auth_state *state,
1833 char *buf, int length)
1834 {
1835 char *request, *parameter;
1836 static DATA_BLOB challenge;
1837 static DATA_BLOB lm_response;
1838 static DATA_BLOB nt_response;
1839 static char *full_username;
1840 static char *username;
1841 static char *domain;
1842 static char *plaintext_password;
1843 static bool ntlm_server_1_user_session_key;
1844 static bool ntlm_server_1_lm_session_key;
1845
1846 if (strequal(buf, ".")) {
1847 if (!full_username && !username) {
1848 x_fprintf(x_stdout, "Error: No username supplied!\n");
1849 } else if (plaintext_password) {
1850 /* handle this request as plaintext */
1851 if (!full_username) {
1852 if (asprintf(&full_username, "%s%c%s", domain, winbind_separator(), username) == -1) {
1853 x_fprintf(x_stdout, "Error: Out of memory in asprintf!\n.\n");
1854 return;
1855 }
1856 }
1857 if (check_plaintext_auth(full_username, plaintext_password, False)) {
1858 x_fprintf(x_stdout, "Authenticated: Yes\n");
1859 } else {
1860 x_fprintf(x_stdout, "Authenticated: No\n");
1861 }
1862 } else if (!lm_response.data && !nt_response.data) {
1863 x_fprintf(x_stdout, "Error: No password supplied!\n");
1864 } else if (!challenge.data) {
1865 x_fprintf(x_stdout, "Error: No lanman-challenge supplied!\n");
1866 } else {
1867 char *error_string = NULL;
1868 uchar lm_key[8];
1869 uchar user_session_key[16];
1870 uint32 flags = 0;
1871
1872 if (full_username && !username) {
1873 fstring fstr_user;
1874 fstring fstr_domain;
1875
1876 if (!parse_ntlm_auth_domain_user(full_username, fstr_user, fstr_domain)) {
1877 /* username might be 'tainted', don't print into our new-line deleimianted stream */
1878 x_fprintf(x_stdout, "Error: Could not parse into domain and username\n");
1879 }
1880 SAFE_FREE(username);
1881 SAFE_FREE(domain);
1882 username = smb_xstrdup(fstr_user);
1883 domain = smb_xstrdup(fstr_domain);
1884 }
1885
1886 if (!domain) {
1887 domain = smb_xstrdup(get_winbind_domain());
1888 }
1889
1890 if (ntlm_server_1_lm_session_key)
1891 flags |= WBFLAG_PAM_LMKEY;
1892
1893 if (ntlm_server_1_user_session_key)
1894 flags |= WBFLAG_PAM_USER_SESSION_KEY;
1895
1896 if (!NT_STATUS_IS_OK(
1897 contact_winbind_auth_crap(username,
1898 domain,
1899 global_myname(),
1900 &challenge,
1901 &lm_response,
1902 &nt_response,
1903 flags,
1904 lm_key,
1905 user_session_key,
1906 &error_string,
1907 NULL))) {
1908
1909 x_fprintf(x_stdout, "Authenticated: No\n");
1910 x_fprintf(x_stdout, "Authentication-Error: %s\n.\n", error_string);
1911 } else {
1912 static char zeros[16];
1913 char *hex_lm_key;
1914 char *hex_user_session_key;
1915
1916 x_fprintf(x_stdout, "Authenticated: Yes\n");
1917
1918 if (ntlm_server_1_lm_session_key
1919 && (memcmp(zeros, lm_key,
1920 sizeof(lm_key)) != 0)) {
1921 hex_lm_key = hex_encode_talloc(NULL,
1922 (const unsigned char *)lm_key,
1923 sizeof(lm_key));
1924 x_fprintf(x_stdout, "LANMAN-Session-Key: %s\n", hex_lm_key);
1925 TALLOC_FREE(hex_lm_key);
1926 }
1927
1928 if (ntlm_server_1_user_session_key
1929 && (memcmp(zeros, user_session_key,
1930 sizeof(user_session_key)) != 0)) {
1931 hex_user_session_key = hex_encode_talloc(NULL,
1932 (const unsigned char *)user_session_key,
1933 sizeof(user_session_key));
1934 x_fprintf(x_stdout, "User-Session-Key: %s\n", hex_user_session_key);
1935 TALLOC_FREE(hex_user_session_key);
1936 }
1937 }
1938 SAFE_FREE(error_string);
1939 }
1940 /* clear out the state */
1941 challenge = data_blob_null;
1942 nt_response = data_blob_null;
1943 lm_response = data_blob_null;
1944 SAFE_FREE(full_username);
1945 SAFE_FREE(username);
1946 SAFE_FREE(domain);
1947 SAFE_FREE(plaintext_password);
1948 ntlm_server_1_user_session_key = False;
1949 ntlm_server_1_lm_session_key = False;
1950 x_fprintf(x_stdout, ".\n");
1951
1952 return;
1953 }
1954
1955 request = buf;
1956
1957 /* Indicates a base64 encoded structure */
1958 parameter = strstr_m(request, ":: ");
1959 if (!parameter) {
1960 parameter = strstr_m(request, ": ");
1961
1962 if (!parameter) {
1963 DEBUG(0, ("Parameter not found!\n"));
1964 x_fprintf(x_stdout, "Error: Parameter not found!\n.\n");
1965 return;
1966 }
1967
1968 parameter[0] ='\0';
1969 parameter++;
1970 parameter[0] ='\0';
1971 parameter++;
1972
1973 } else {
1974 parameter[0] ='\0';
1975 parameter++;
1976 parameter[0] ='\0';
1977 parameter++;
1978 parameter[0] ='\0';
1979 parameter++;
1980
1981 base64_decode_inplace(parameter);
1982 }
1983
1984 if (strequal(request, "LANMAN-Challenge")) {
1985 challenge = strhex_to_data_blob(NULL, parameter);
1986 if (challenge.length != 8) {
1987 x_fprintf(x_stdout, "Error: hex decode of %s failed! (got %d bytes, expected 8)\n.\n",
1988 parameter,
1989 (int)challenge.length);
1990 challenge = data_blob_null;
1991 }
1992 } else if (strequal(request, "NT-Response")) {
1993 nt_response = strhex_to_data_blob(NULL, parameter);
1994 if (nt_response.length < 24) {
1995 x_fprintf(x_stdout, "Error: hex decode of %s failed! (only got %d bytes, needed at least 24)\n.\n",
1996 parameter,
1997 (int)nt_response.length);
1998 nt_response = data_blob_null;
1999 }
2000 } else if (strequal(request, "LANMAN-Response")) {
2001 lm_response = strhex_to_data_blob(NULL, parameter);
2002 if (lm_response.length != 24) {
2003 x_fprintf(x_stdout, "Error: hex decode of %s failed! (got %d bytes, expected 24)\n.\n",
2004 parameter,
2005 (int)lm_response.length);
2006 lm_response = data_blob_null;
2007 }
2008 } else if (strequal(request, "Password")) {
2009 plaintext_password = smb_xstrdup(parameter);
2010 } else if (strequal(request, "NT-Domain")) {
2011 domain = smb_xstrdup(parameter);
2012 } else if (strequal(request, "Username")) {
2013 username = smb_xstrdup(parameter);
2014 } else if (strequal(request, "Full-Username")) {
2015 full_username = smb_xstrdup(parameter);
2016 } else if (strequal(request, "Request-User-Session-Key")) {
2017 ntlm_server_1_user_session_key = strequal(parameter, "Yes");
2018 } else if (strequal(request, "Request-LanMan-Session-Key")) {
2019 ntlm_server_1_lm_session_key = strequal(parameter, "Yes");
2020 } else {
2021 x_fprintf(x_stdout, "Error: Unknown request %s\n.\n", request);
2022 }
2023 }
2024
2025 static void manage_ntlm_change_password_1_request(struct ntlm_auth_state *state,
2026 char *buf, int length)
2027 {
2028 char *request, *parameter;
2029 static DATA_BLOB new_nt_pswd;
2030 static DATA_BLOB old_nt_hash_enc;
2031 static DATA_BLOB new_lm_pswd;
2032 static DATA_BLOB old_lm_hash_enc;
2033 static char *full_username = NULL;
2034 static char *username = NULL;
2035 static char *domain = NULL;
2036 static char *newpswd = NULL;
2037 static char *oldpswd = NULL;
2038
2039 if (strequal(buf, ".")) {
2040 if(newpswd && oldpswd) {
2041 uchar old_nt_hash[16];
2042 uchar old_lm_hash[16];
2043 uchar new_nt_hash[16];
2044 uchar new_lm_hash[16];
2045
2046 new_nt_pswd = data_blob(NULL, 516);
2047 old_nt_hash_enc = data_blob(NULL, 16);
2048
2049 /* Calculate the MD4 hash (NT compatible) of the
2050 * password */
2051 E_md4hash(oldpswd, old_nt_hash);
2052 E_md4hash(newpswd, new_nt_hash);
2053
2054 /* E_deshash returns false for 'long'
2055 passwords (> 14 DOS chars).
2056
2057 Therefore, don't send a buffer
2058 encrypted with the truncated hash
2059 (it could allow an even easier
2060 attack on the password)
2061
2062 Likewise, obey the admin's restriction
2063 */
2064
2065 if (lp_client_lanman_auth() &&
2066 E_deshash(newpswd, new_lm_hash) &&
2067 E_deshash(oldpswd, old_lm_hash)) {
2068 new_lm_pswd = data_blob(NULL, 516);
2069 old_lm_hash_enc = data_blob(NULL, 16);
2070 encode_pw_buffer(new_lm_pswd.data, newpswd,
2071 STR_UNICODE);
2072
2073 arcfour_crypt(new_lm_pswd.data, old_nt_hash, 516);
2074 E_old_pw_hash(new_nt_hash, old_lm_hash,
2075 old_lm_hash_enc.data);
2076 } else {
2077 new_lm_pswd.data = NULL;
2078 new_lm_pswd.length = 0;
2079 old_lm_hash_enc.data = NULL;
2080 old_lm_hash_enc.length = 0;
2081 }
2082
2083 encode_pw_buffer(new_nt_pswd.data, newpswd,
2084 STR_UNICODE);
2085
2086 arcfour_crypt(new_nt_pswd.data, old_nt_hash, 516);
2087 E_old_pw_hash(new_nt_hash, old_nt_hash,
2088 old_nt_hash_enc.data);
2089 }
2090
2091 if (!full_username && !username) {
2092 x_fprintf(x_stdout, "Error: No username supplied!\n");
2093 } else if ((!new_nt_pswd.data || !old_nt_hash_enc.data) &&
2094 (!new_lm_pswd.data || old_lm_hash_enc.data) ) {
2095 x_fprintf(x_stdout, "Error: No NT or LM password "
2096 "blobs supplied!\n");
2097 } else {
2098 char *error_string = NULL;
2099
2100 if (full_username && !username) {
2101 fstring fstr_user;
2102 fstring fstr_domain;
2103
2104 if (!parse_ntlm_auth_domain_user(full_username,
2105 fstr_user,
2106 fstr_domain)) {
2107 /* username might be 'tainted', don't
2108 * print into our new-line
2109 * deleimianted stream */
2110 x_fprintf(x_stdout, "Error: Could not "
2111 "parse into domain and "
2112 "username\n");
2113 SAFE_FREE(username);
2114 username = smb_xstrdup(full_username);
2115 } else {
2116 SAFE_FREE(username);
2117 SAFE_FREE(domain);
2118 username = smb_xstrdup(fstr_user);
2119 domain = smb_xstrdup(fstr_domain);
2120 }
2121
2122 }
2123
2124 if(!NT_STATUS_IS_OK(contact_winbind_change_pswd_auth_crap(
2125 username, domain,
2126 new_nt_pswd,
2127 old_nt_hash_enc,
2128 new_lm_pswd,
2129 old_lm_hash_enc,
2130 &error_string))) {
2131 x_fprintf(x_stdout, "Password-Change: No\n");
2132 x_fprintf(x_stdout, "Password-Change-Error: "
2133 "%s\n.\n", error_string);
2134 } else {
2135 x_fprintf(x_stdout, "Password-Change: Yes\n");
2136 }
2137
2138 SAFE_FREE(error_string);
2139 }
2140 /* clear out the state */
2141 new_nt_pswd = data_blob_null;
2142 old_nt_hash_enc = data_blob_null;
2143 new_lm_pswd = data_blob_null;
2144 old_nt_hash_enc = data_blob_null;
2145 SAFE_FREE(full_username);
2146 SAFE_FREE(username);
2147 SAFE_FREE(domain);
2148 SAFE_FREE(newpswd);
2149 SAFE_FREE(oldpswd);
2150 x_fprintf(x_stdout, ".\n");
2151
2152 return;
2153 }
2154
2155 request = buf;
2156
2157 /* Indicates a base64 encoded structure */
2158 parameter = strstr_m(request, ":: ");
2159 if (!parameter) {
2160 parameter = strstr_m(request, ": ");
2161
2162 if (!parameter) {
2163 DEBUG(0, ("Parameter not found!\n"));
2164 x_fprintf(x_stdout, "Error: Parameter not found!\n.\n");
2165 return;
2166 }
2167
2168 parameter[0] ='\0';
2169 parameter++;
2170 parameter[0] ='\0';
2171 parameter++;
2172 } else {
2173 parameter[0] ='\0';
2174 parameter++;
2175 parameter[0] ='\0';
2176 parameter++;
2177 parameter[0] ='\0';
2178 parameter++;
2179
2180 base64_decode_inplace(parameter);
2181 }
2182
2183 if (strequal(request, "new-nt-password-blob")) {
2184 new_nt_pswd = strhex_to_data_blob(NULL, parameter);
2185 if (new_nt_pswd.length != 516) {
2186 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2187 "(got %d bytes, expected 516)\n.\n",
2188 parameter,
2189 (int)new_nt_pswd.length);
2190 new_nt_pswd = data_blob_null;
2191 }
2192 } else if (strequal(request, "old-nt-hash-blob")) {
2193 old_nt_hash_enc = strhex_to_data_blob(NULL, parameter);
2194 if (old_nt_hash_enc.length != 16) {
2195 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2196 "(got %d bytes, expected 16)\n.\n",
2197 parameter,
2198 (int)old_nt_hash_enc.length);
2199 old_nt_hash_enc = data_blob_null;
2200 }
2201 } else if (strequal(request, "new-lm-password-blob")) {
2202 new_lm_pswd = strhex_to_data_blob(NULL, parameter);
2203 if (new_lm_pswd.length != 516) {
2204 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2205 "(got %d bytes, expected 516)\n.\n",
2206 parameter,
2207 (int)new_lm_pswd.length);
2208 new_lm_pswd = data_blob_null;
2209 }
2210 }
2211 else if (strequal(request, "old-lm-hash-blob")) {
2212 old_lm_hash_enc = strhex_to_data_blob(NULL, parameter);
2213 if (old_lm_hash_enc.length != 16)
2214 {
2215 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2216 "(got %d bytes, expected 16)\n.\n",
2217 parameter,
2218 (int)old_lm_hash_enc.length);
2219 old_lm_hash_enc = data_blob_null;
2220 }
2221 } else if (strequal(request, "nt-domain")) {
2222 domain = smb_xstrdup(parameter);
2223 } else if(strequal(request, "username")) {
2224 username = smb_xstrdup(parameter);
2225 } else if(strequal(request, "full-username")) {
2226 username = smb_xstrdup(parameter);
2227 } else if(strequal(request, "new-password")) {
2228 newpswd = smb_xstrdup(parameter);
2229 } else if (strequal(request, "old-password")) {
2230 oldpswd = smb_xstrdup(parameter);
2231 } else {
2232 x_fprintf(x_stdout, "Error: Unknown request %s\n.\n", request);
2233 }
2234 }
2235
2236 static void manage_squid_request(struct ntlm_auth_state *state,
2237 stdio_helper_function fn)
2238 {
2239 char *buf;
2240 char tmp[INITIAL_BUFFER_SIZE+1];
2241 int length, buf_size = 0;
2242 char *c;
2243
2244 buf = talloc_strdup(state->mem_ctx, "");
2245 if (!buf) {
2246 DEBUG(0, ("Failed to allocate input buffer.\n"));
2247 x_fprintf(x_stderr, "ERR\n");
2248 exit(1);
2249 }
2250
2251 do {
2252
2253 /* this is not a typo - x_fgets doesn't work too well under
2254 * squid */
2255 if (fgets(tmp, sizeof(tmp)-1, stdin) == NULL) {
2256 if (ferror(stdin)) {
2257 DEBUG(1, ("fgets() failed! dying..... errno=%d "
2258 "(%s)\n", ferror(stdin),
2259 strerror(ferror(stdin))));
2260
2261 exit(1);
2262 }
2263 exit(0);
2264 }
2265
2266 buf = talloc_strdup_append_buffer(buf, tmp);
2267 buf_size += INITIAL_BUFFER_SIZE;
2268
2269 if (buf_size > MAX_BUFFER_SIZE) {
2270 DEBUG(2, ("Oversized message\n"));
2271 x_fprintf(x_stderr, "ERR\n");
2272 talloc_free(buf);
2273 return;
2274 }
2275
2276 c = strchr(buf, '\n');
2277 } while (c == NULL);
2278
2279 *c = '\0';
2280 length = c-buf;
2281
2282 DEBUG(10, ("Got '%s' from squid (length: %d).\n",buf,length));
2283
2284 if (buf[0] == '\0') {
2285 DEBUG(2, ("Invalid Request\n"));
2286 x_fprintf(x_stderr, "ERR\n");
2287 talloc_free(buf);
2288 return;
2289 }
2290
2291 fn(state, buf, length);
2292 talloc_free(buf);
2293 }
2294
2295
2296 static void squid_stream(enum stdio_helper_mode stdio_mode, stdio_helper_function fn) {
2297 TALLOC_CTX *mem_ctx;
2298 struct ntlm_auth_state *state;
2299
2300 /* initialize FDescs */
2301 x_setbuf(x_stdout, NULL);
2302 x_setbuf(x_stderr, NULL);
2303
2304 mem_ctx = talloc_init("ntlm_auth");
2305 if (!mem_ctx) {
2306 DEBUG(0, ("squid_stream: Failed to create talloc context\n"));
2307 x_fprintf(x_stderr, "ERR\n");
2308 exit(1);
2309 }
2310
2311 state = talloc_zero(mem_ctx, struct ntlm_auth_state);
2312 if (!state) {
2313 DEBUG(0, ("squid_stream: Failed to talloc ntlm_auth_state\n"));
2314 x_fprintf(x_stderr, "ERR\n");
2315 exit(1);
2316 }
2317
2318 state->mem_ctx = mem_ctx;
2319 state->helper_mode = stdio_mode;
2320
2321 while(1) {
2322 manage_squid_request(state, fn);
2323 }
2324 }
2325
2326
2327 /* Authenticate a user with a challenge/response */
2328
2329 static bool check_auth_crap(void)
2330 {
2331 NTSTATUS nt_status;
2332 uint32 flags = 0;
2333 char lm_key[8];
2334 char user_session_key[16];
2335 char *hex_lm_key;
2336 char *hex_user_session_key;
2337 char *error_string;
2338 static uint8 zeros[16];
2339
2340 x_setbuf(x_stdout, NULL);
2341
2342 if (request_lm_key)
2343 flags |= WBFLAG_PAM_LMKEY;
2344
2345 if (request_user_session_key)
2346 flags |= WBFLAG_PAM_USER_SESSION_KEY;
2347
2348 flags |= WBFLAG_PAM_NT_STATUS_SQUASH;
2349
2350 nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
2351 opt_workstation,
2352 &opt_challenge,
2353 &opt_lm_response,
2354 &opt_nt_response,
2355 flags,
2356 (unsigned char *)lm_key,
2357 (unsigned char *)user_session_key,
2358 &error_string, NULL);
2359
2360 if (!NT_STATUS_IS_OK(nt_status)) {
2361 x_fprintf(x_stdout, "%s (0x%x)\n",
2362 error_string,
2363 NT_STATUS_V(nt_status));
2364 SAFE_FREE(error_string);
2365 return False;
2366 }
2367
2368 if (request_lm_key
2369 && (memcmp(zeros, lm_key,
2370 sizeof(lm_key)) != 0)) {
2371 hex_lm_key = hex_encode_talloc(talloc_tos(), (const unsigned char *)lm_key,
2372 sizeof(lm_key));
2373 x_fprintf(x_stdout, "LM_KEY: %s\n", hex_lm_key);
2374 TALLOC_FREE(hex_lm_key);
2375 }
2376 if (request_user_session_key
2377 && (memcmp(zeros, user_session_key,
2378 sizeof(user_session_key)) != 0)) {
2379 hex_user_session_key = hex_encode_talloc(talloc_tos(), (const unsigned char *)user_session_key,
2380 sizeof(user_session_key));
2381 x_fprintf(x_stdout, "NT_KEY: %s\n", hex_user_session_key);
2382 TALLOC_FREE(hex_user_session_key);
2383 }
2384
2385 return True;
2386 }
2387
2388 /* Main program */
2389
2390 enum {
2391 OPT_USERNAME = 1000,
2392 OPT_DOMAIN,
2393 OPT_WORKSTATION,
2394 OPT_CHALLENGE,
2395 OPT_RESPONSE,
2396 OPT_LM,
2397 OPT_NT,
2398 OPT_PASSWORD,
2399 OPT_LM_KEY,
2400 OPT_USER_SESSION_KEY,
2401 OPT_DIAGNOSTICS,
2402 OPT_REQUIRE_MEMBERSHIP,
2403 OPT_USE_CACHED_CREDS,
2404 OPT_PAM_WINBIND_CONF
2405 };
2406
2407 int main(int argc, const char **argv)
2408 {
2409 TALLOC_CTX *frame = talloc_stackframe();
2410 int opt;
2411 static const char *helper_protocol;
2412 static int diagnostics;
2413
2414 static const char *hex_challenge;
2415 static const char *hex_lm_response;
2416 static const char *hex_nt_response;
2417
2418 poptContext pc;
2419
2420 /* NOTE: DO NOT change this interface without considering the implications!
2421 This is an external interface, which other programs will use to interact
2422 with this helper.
2423 */
2424
2425 /* We do not use single-letter command abbreviations, because they harm future
2426 interface stability. */
2427
2428 struct poptOption long_options[] = {
2429 POPT_AUTOHELP
2430 { "helper-protocol", 0, POPT_ARG_STRING, &helper_protocol, OPT_DOMAIN, "operate as a stdio-based helper", "helper protocol to use"},
2431 { "username", 0, POPT_ARG_STRING, &opt_username, OPT_USERNAME, "username"},
2432 { "domain", 0, POPT_ARG_STRING, &opt_domain, OPT_DOMAIN, "domain name"},
2433 { "workstation", 0, POPT_ARG_STRING, &opt_workstation, OPT_WORKSTATION, "workstation"},
2434 { "challenge", 0, POPT_ARG_STRING, &hex_challenge, OPT_CHALLENGE, "challenge (HEX encoded)"},
2435 { "lm-response", 0, POPT_ARG_STRING, &hex_lm_response, OPT_LM, "LM Response to the challenge (HEX encoded)"},
2436 { "nt-response", 0, POPT_ARG_STRING, &hex_nt_response, OPT_NT, "NT or NTLMv2 Response to the challenge (HEX encoded)"},
2437 { "password", 0, POPT_ARG_STRING, &opt_password, OPT_PASSWORD, "User's plaintext password"},
2438 { "request-lm-key", 0, POPT_ARG_NONE, &request_lm_key, OPT_LM_KEY, "Retrieve LM session key"},
2439 { "request-nt-key", 0, POPT_ARG_NONE, &request_user_session_key, OPT_USER_SESSION_KEY, "Retrieve User (NT) session key"},
2440 { "use-cached-creds", 0, POPT_ARG_NONE, &use_cached_creds, OPT_USE_CACHED_CREDS, "Use cached credentials if no password is given"},
2441 { "diagnostics", 0, POPT_ARG_NONE, &diagnostics, OPT_DIAGNOSTICS, "Perform diagnostics on the authentictaion chain"},
2442 { "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" },
2443 { "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" },
2444 POPT_COMMON_CONFIGFILE
2445 POPT_COMMON_VERSION
2446 POPT_TABLEEND
2447 };
2448
2449 /* Samba client initialisation */
2450 load_case_tables();
2451
2452 dbf = x_stderr;
2453
2454 /* Parse options */
2455
2456 pc = poptGetContext("ntlm_auth", argc, argv, long_options, 0);
2457
2458 /* Parse command line options */
2459
2460 if (argc == 1) {
2461 poptPrintHelp(pc, stderr, 0);
2462 return 1;
2463 }
2464
2465 while((opt = poptGetNextOpt(pc)) != -1) {
2466 /* Get generic config options like --configfile */
2467 }
2468
2469 poptFreeContext(pc);
2470
2471 if (!lp_load(get_dyn_CONFIGFILE(), True, False, False, True)) {
2472 d_fprintf(stderr, "ntlm_auth: error opening config file %s. Error was %s\n",
2473 get_dyn_CONFIGFILE(), strerror(errno));
2474 exit(1);
2475 }
2476
2477 pc = poptGetContext(NULL, argc, (const char **)argv, long_options,
2478 POPT_CONTEXT_KEEP_FIRST);
2479
2480 while((opt = poptGetNextOpt(pc)) != -1) {
2481 switch (opt) {
2482 case OPT_CHALLENGE:
2483 opt_challenge = strhex_to_data_blob(NULL, hex_challenge);
2484 if (opt_challenge.length != 8) {
2485 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
2486 hex_challenge,
2487 (int)opt_challenge.length);
2488 exit(1);
2489 }
2490 break;
2491 case OPT_LM:
2492 opt_lm_response = strhex_to_data_blob(NULL, hex_lm_response);
2493 if (opt_lm_response.length != 24) {
2494 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
2495 hex_lm_response,
2496 (int)opt_lm_response.length);
2497 exit(1);
2498 }
2499 break;
2500
2501 case OPT_NT:
2502 opt_nt_response = strhex_to_data_blob(NULL, hex_nt_response);
2503 if (opt_nt_response.length < 24) {
2504 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
2505 hex_nt_response,
2506 (int)opt_nt_response.length);
2507 exit(1);
2508 }
2509 break;
2510
2511 case OPT_REQUIRE_MEMBERSHIP:
2512 if (StrnCaseCmp("S-", require_membership_of, 2) == 0) {
2513 require_membership_of_sid = require_membership_of;
2514 }
2515 break;
2516 }
2517 }
2518
2519 if (opt_username) {
2520 char *domain = SMB_STRDUP(opt_username);
2521 char *p = strchr_m(domain, *lp_winbind_separator());
2522 if (p) {
2523 opt_username = p+1;
2524 *p = '\0';
2525 if (opt_domain && !strequal(opt_domain, domain)) {
2526 x_fprintf(x_stderr, "Domain specified in username (%s) "
2527 "doesn't match specified domain (%s)!\n\n",
2528 domain, opt_domain);
2529 poptPrintHelp(pc, stderr, 0);
2530 exit(1);
2531 }
2532 opt_domain = domain;
2533 } else {
2534 SAFE_FREE(domain);
2535 }
2536 }
2537
2538 /* Note: if opt_domain is "" then send no domain */
2539 if (opt_domain == NULL) {
2540 opt_domain = get_winbind_domain();
2541 }
2542
2543 if (opt_workstation == NULL) {
2544 opt_workstation = "";
2545 }
2546
2547 if (helper_protocol) {
2548 int i;
2549 for (i=0; i<NUM_HELPER_MODES; i++) {
2550 if (strcmp(helper_protocol, stdio_helper_protocols[i].name) == 0) {
2551 squid_stream(stdio_helper_protocols[i].mode, stdio_helper_protocols[i].fn);
2552 exit(0);
2553 }
2554 }
2555 x_fprintf(x_stderr, "unknown helper protocol [%s]\n\nValid helper protools:\n\n", helper_protocol);
2556
2557 for (i=0; i<NUM_HELPER_MODES; i++) {
2558 x_fprintf(x_stderr, "%s\n", stdio_helper_protocols[i].name);
2559 }
2560
2561 exit(1);
2562 }
2563
2564 if (!opt_username || !*opt_username) {
2565 x_fprintf(x_stderr, "username must be specified!\n\n");
2566 poptPrintHelp(pc, stderr, 0);
2567 exit(1);
2568 }
2569
2570 if (opt_challenge.length) {
2571 if (!check_auth_crap()) {
2572 exit(1);
2573 }
2574 exit(0);
2575 }
2576
2577 if (!opt_password) {
2578 opt_password = getpass("password: ");
2579 }
2580
2581 if (diagnostics) {
2582 if (!diagnose_ntlm_auth()) {
2583 return 1;
2584 }
2585 } else {
2586 fstring user;
2587
2588 fstr_sprintf(user, "%s%c%s", opt_domain, winbind_separator(), opt_username);
2589 if (!check_plaintext_auth(user, opt_password, True)) {
2590 return 1;
2591 }
2592 }
2593
2594 /* Exit code */
2595
2596 poptFreeContext(pc);
2597 TALLOC_FREE(frame);
2598 return 0;
2599 }
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