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Fix bugzilla # 1208
[Samba/nascimento.git] / source3 / utils / ntlm_auth.c
blob2213a9bae37ae52a4a425b5b0b19b0960982f734
1 /*
2 Unix SMB/CIFS implementation.
3
4 Winbind status program.
5
6 Copyright (C) Tim Potter 2000-2002
7 Copyright (C) Andrew Bartlett <abartlet@samba.org> 2003
8 Copyright (C) Francesco Chemolli <kinkie@kame.usr.dsi.unimi.it> 2000
9
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
14
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 */
24
25 #include "includes.h"
26
27 #undef DBGC_CLASS
28 #define DBGC_CLASS DBGC_WINBIND
29
30 #define SQUID_BUFFER_SIZE 2010
31
32 enum stdio_helper_mode {
33 SQUID_2_4_BASIC,
34 SQUID_2_5_BASIC,
35 SQUID_2_5_NTLMSSP,
36 NTLMSSP_CLIENT_1,
37 GSS_SPNEGO,
38 GSS_SPNEGO_CLIENT,
39 NUM_HELPER_MODES
40 };
41
42 enum ntlm_break {
43 BREAK_NONE,
44 BREAK_LM,
45 BREAK_NT,
46 NO_LM,
47 NO_NT
48 };
49
50 typedef void (*stdio_helper_function)(enum stdio_helper_mode stdio_helper_mode,
51 char *buf, int length);
52
53 static void manage_squid_basic_request (enum stdio_helper_mode stdio_helper_mode,
54 char *buf, int length);
55
56 static void manage_squid_ntlmssp_request (enum stdio_helper_mode stdio_helper_mode,
57 char *buf, int length);
58
59 static void manage_client_ntlmssp_request (enum stdio_helper_mode stdio_helper_mode,
60 char *buf, int length);
61
62 static void manage_gss_spnego_request (enum stdio_helper_mode stdio_helper_mode,
63 char *buf, int length);
64
65 static void manage_gss_spnego_client_request (enum stdio_helper_mode stdio_helper_mode,
66 char *buf, int length);
67
68 static const struct {
69 enum stdio_helper_mode mode;
70 const char *name;
71 stdio_helper_function fn;
72 } stdio_helper_protocols[] = {
73 { SQUID_2_4_BASIC, "squid-2.4-basic", manage_squid_basic_request},
74 { SQUID_2_5_BASIC, "squid-2.5-basic", manage_squid_basic_request},
75 { SQUID_2_5_NTLMSSP, "squid-2.5-ntlmssp", manage_squid_ntlmssp_request},
76 { NTLMSSP_CLIENT_1, "ntlmssp-client-1", manage_client_ntlmssp_request},
77 { GSS_SPNEGO, "gss-spnego", manage_gss_spnego_request},
78 { GSS_SPNEGO_CLIENT, "gss-spnego-client", manage_gss_spnego_client_request},
79 { NUM_HELPER_MODES, NULL, NULL}
80 };
81
82 extern int winbindd_fd;
83
84 static const char *opt_username;
85 static const char *opt_domain;
86 static const char *opt_workstation;
87 static const char *opt_password;
88 static DATA_BLOB opt_challenge;
89 static DATA_BLOB opt_lm_response;
90 static DATA_BLOB opt_nt_response;
91 static int request_lm_key;
92 static int request_nt_key;
93
94
95 static char winbind_separator(void)
96 {
97 struct winbindd_response response;
98 static BOOL got_sep;
99 static char sep;
100
101 if (got_sep)
102 return sep;
103
104 ZERO_STRUCT(response);
105
106 /* Send off request */
107
108 if (winbindd_request(WINBINDD_INFO, NULL, &response) !=
109 NSS_STATUS_SUCCESS) {
110 d_printf("could not obtain winbind separator!\n");
111 return '\\';
112 }
113
114 sep = response.data.info.winbind_separator;
115 got_sep = True;
116
117 if (!sep) {
118 d_printf("winbind separator was NULL!\n");
119 return '\\';
120 }
121
122 return sep;
123 }
124
125 static const char *get_winbind_domain(void)
126 {
127 struct winbindd_response response;
128
129 static fstring winbind_domain;
130 if (*winbind_domain) {
131 return winbind_domain;
132 }
133
134 ZERO_STRUCT(response);
135
136 /* Send off request */
137
138 if (winbindd_request(WINBINDD_DOMAIN_NAME, NULL, &response) !=
139 NSS_STATUS_SUCCESS) {
140 DEBUG(0, ("could not obtain winbind domain name!\n"));
141 return NULL;
142 }
143
144 fstrcpy(winbind_domain, response.data.domain_name);
145
146 return winbind_domain;
147
148 }
149
150 static const char *get_winbind_netbios_name(void)
151 {
152 struct winbindd_response response;
153
154 static fstring winbind_netbios_name;
155
156 if (*winbind_netbios_name) {
157 return winbind_netbios_name;
158 }
159
160 ZERO_STRUCT(response);
161
162 /* Send off request */
163
164 if (winbindd_request(WINBINDD_NETBIOS_NAME, NULL, &response) !=
165 NSS_STATUS_SUCCESS) {
166 DEBUG(0, ("could not obtain winbind netbios name!\n"));
167 return NULL;
168 }
169
170 fstrcpy(winbind_netbios_name, response.data.netbios_name);
171
172 return winbind_netbios_name;
173
174 }
175
176 /* Authenticate a user with a plaintext password */
177
178 static BOOL check_plaintext_auth(const char *user, const char *pass, BOOL stdout_diagnostics)
179 {
180 struct winbindd_request request;
181 struct winbindd_response response;
182 NSS_STATUS result;
183
184 /* Send off request */
185
186 ZERO_STRUCT(request);
187 ZERO_STRUCT(response);
188
189 fstrcpy(request.data.auth.user, user);
190 fstrcpy(request.data.auth.pass, pass);
191
192 result = winbindd_request(WINBINDD_PAM_AUTH, &request, &response);
193
194 /* Display response */
195
196 if (stdout_diagnostics) {
197 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
198 d_printf("Reading winbind reply failed! (0x01)\n");
199 }
200
201 d_printf("%s: %s (0x%x)\n",
202 response.data.auth.nt_status_string,
203 response.data.auth.error_string,
204 response.data.auth.nt_status);
205 } else {
206 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
207 DEBUG(1, ("Reading winbind reply failed! (0x01)\n"));
208 }
209
210 DEBUG(3, ("%s: %s (0x%x)\n",
211 response.data.auth.nt_status_string,
212 response.data.auth.error_string,
213 response.data.auth.nt_status));
214 }
215
216 return (result == NSS_STATUS_SUCCESS);
217 }
218
219 /* authenticate a user with an encrypted username/password */
220
221 static NTSTATUS contact_winbind_auth_crap(const char *username,
222 const char *domain,
223 const char *workstation,
224 const DATA_BLOB *challenge,
225 const DATA_BLOB *lm_response,
226 const DATA_BLOB *nt_response,
227 uint32 flags,
228 uint8 lm_key[8],
229 uint8 nt_key[16],
230 char **error_string,
231 char **unix_name)
232 {
233 NTSTATUS nt_status;
234 NSS_STATUS result;
235 struct winbindd_request request;
236 struct winbindd_response response;
237
238 static uint8 zeros[16];
239
240 ZERO_STRUCT(request);
241 ZERO_STRUCT(response);
242
243 request.flags = flags;
244
245 if (push_utf8_fstring(request.data.auth_crap.user, username) == -1) {
246 *error_string = smb_xstrdup(
247 "unable to create utf8 string for username");
248 return NT_STATUS_UNSUCCESSFUL;
249 }
250
251 if (push_utf8_fstring(request.data.auth_crap.domain, domain) == -1) {
252 *error_string = smb_xstrdup(
253 "unable to create utf8 string for domain");
254 return NT_STATUS_UNSUCCESSFUL;
255 }
256
257 if (push_utf8_fstring(request.data.auth_crap.workstation,
258 workstation) == -1) {
259 *error_string = smb_xstrdup(
260 "unable to create utf8 string for workstation");
261 return NT_STATUS_UNSUCCESSFUL;
262 }
263
264 memcpy(request.data.auth_crap.chal, challenge->data, MIN(challenge->length, 8));
265
266 if (lm_response && lm_response->length) {
267 memcpy(request.data.auth_crap.lm_resp, lm_response->data, MIN(lm_response->length, sizeof(request.data.auth_crap.lm_resp)));
268 request.data.auth_crap.lm_resp_len = lm_response->length;
269 }
270
271 if (nt_response && nt_response->length) {
272 memcpy(request.data.auth_crap.nt_resp, nt_response->data, MIN(nt_response->length, sizeof(request.data.auth_crap.nt_resp)));
273 request.data.auth_crap.nt_resp_len = nt_response->length;
274 }
275
276 result = winbindd_request(WINBINDD_PAM_AUTH_CRAP, &request, &response);
277
278 /* Display response */
279
280 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
281 nt_status = NT_STATUS_UNSUCCESSFUL;
282 if (error_string)
283 *error_string = smb_xstrdup("Reading winbind reply failed!");
284 return nt_status;
285 }
286
287 nt_status = (NT_STATUS(response.data.auth.nt_status));
288 if (!NT_STATUS_IS_OK(nt_status)) {
289 if (error_string)
290 *error_string = smb_xstrdup(response.data.auth.error_string);
291 return nt_status;
292 }
293
294 if ((flags & WBFLAG_PAM_LMKEY) && lm_key
295 && (memcmp(zeros, response.data.auth.first_8_lm_hash,
296 sizeof(response.data.auth.first_8_lm_hash)) != 0)) {
297 memcpy(lm_key, response.data.auth.first_8_lm_hash,
298 sizeof(response.data.auth.first_8_lm_hash));
299 }
300 if ((flags & WBFLAG_PAM_NTKEY) && nt_key
301 && (memcmp(zeros, response.data.auth.nt_session_key,
302 sizeof(response.data.auth.nt_session_key)) != 0)) {
303 memcpy(nt_key, response.data.auth.nt_session_key,
304 sizeof(response.data.auth.nt_session_key));
305 }
306
307 if (flags & WBFLAG_PAM_UNIX_NAME) {
308 if (pull_utf8_allocate(unix_name, (char *)response.extra_data) == -1) {
309 return NT_STATUS_NO_MEMORY;
310 }
311 }
312
313 return nt_status;
314 }
315
316 static NTSTATUS winbind_pw_check(struct ntlmssp_state *ntlmssp_state, DATA_BLOB *nt_session_key, DATA_BLOB *lm_session_key)
317 {
318 static const char zeros[16];
319 NTSTATUS nt_status;
320 char *error_string;
321 uint8 lm_key[8];
322 uint8 nt_key[16];
323 char *unix_name;
324
325 nt_status = contact_winbind_auth_crap(ntlmssp_state->user, ntlmssp_state->domain,
326 ntlmssp_state->workstation,
327 &ntlmssp_state->chal,
328 &ntlmssp_state->lm_resp,
329 &ntlmssp_state->nt_resp,
330 WBFLAG_PAM_LMKEY | WBFLAG_PAM_NTKEY | WBFLAG_PAM_UNIX_NAME,
331 lm_key, nt_key,
332 &error_string, &unix_name);
333
334 if (NT_STATUS_IS_OK(nt_status)) {
335 if (memcmp(lm_key, zeros, 8) != 0) {
336 *lm_session_key = data_blob(NULL, 16);
337 memcpy(lm_session_key->data, lm_key, 8);
338 memset(lm_session_key->data+8, '\0', 8);
339 }
340
341 if (memcmp(nt_key, zeros, 16) != 0) {
342 *nt_session_key = data_blob(nt_key, 16);
343 }
344 ntlmssp_state->auth_context = talloc_strdup(ntlmssp_state->mem_ctx, unix_name);
345 SAFE_FREE(unix_name);
346 } else {
347 DEBUG(NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED) ? 0 : 3,
348 ("Login for user [%s]\\[%s]@[%s] failed due to [%s]\n",
349 ntlmssp_state->domain, ntlmssp_state->user, ntlmssp_state->workstation, error_string ? error_string : "unknown error (NULL)"));
350 ntlmssp_state->auth_context = NULL;
351 }
352 return nt_status;
353 }
354
355 static NTSTATUS local_pw_check(struct ntlmssp_state *ntlmssp_state, DATA_BLOB *nt_session_key, DATA_BLOB *lm_session_key)
356 {
357 static const char zeros[16];
358 NTSTATUS nt_status;
359 uint8 lm_key[8];
360 uint8 nt_key[16];
361 uint8 lm_pw[16], nt_pw[16];
362
363 nt_lm_owf_gen (opt_password, nt_pw, lm_pw);
364
365 nt_status = ntlm_password_check(ntlmssp_state->mem_ctx,
366 &ntlmssp_state->chal,
367 &ntlmssp_state->lm_resp,
368 &ntlmssp_state->nt_resp,
369 ntlmssp_state->user,
370 ntlmssp_state->user,
371 ntlmssp_state->domain,
372 lm_pw, nt_pw, nt_session_key, lm_session_key);
373
374 if (NT_STATUS_IS_OK(nt_status)) {
375 if (memcmp(lm_key, zeros, 8) != 0) {
376 *lm_session_key = data_blob(NULL, 16);
377 memcpy(lm_session_key->data, lm_key, 8);
378 memset(lm_session_key->data+8, '\0', 8);
379 }
380
381 if (memcmp(nt_key, zeros, 16) != 0) {
382 *nt_session_key = data_blob(nt_key, 16);
383 }
384 ntlmssp_state->auth_context = talloc_asprintf(ntlmssp_state->mem_ctx, "%s%c%s", ntlmssp_state->domain, *lp_winbind_separator(), ntlmssp_state->user);
385 } else {
386 DEBUG(3, ("Login for user [%s]\\[%s]@[%s] failed due to [%s]\n",
387 ntlmssp_state->domain, ntlmssp_state->user, ntlmssp_state->workstation,
388 nt_errstr(nt_status)));
389 ntlmssp_state->auth_context = NULL;
390 }
391 return nt_status;
392 }
393
394 static NTSTATUS ntlm_auth_start_ntlmssp_client(NTLMSSP_STATE **client_ntlmssp_state)
395 {
396 NTSTATUS status;
397 if ( (opt_username == NULL) || (opt_domain == NULL) ) {
398 DEBUG(1, ("Need username and domain for NTLMSSP\n"));
399 return status;
400 }
401
402 status = ntlmssp_client_start(client_ntlmssp_state);
403
404 if (!NT_STATUS_IS_OK(status)) {
405 DEBUG(1, ("Could not start NTLMSSP client: %s\n",
406 nt_errstr(status)));
407 ntlmssp_end(client_ntlmssp_state);
408 return status;
409 }
410
411 status = ntlmssp_set_username(*client_ntlmssp_state, opt_username);
412
413 if (!NT_STATUS_IS_OK(status)) {
414 DEBUG(1, ("Could not set username: %s\n",
415 nt_errstr(status)));
416 ntlmssp_end(client_ntlmssp_state);
417 return status;
418 }
419
420 status = ntlmssp_set_domain(*client_ntlmssp_state, opt_domain);
421
422 if (!NT_STATUS_IS_OK(status)) {
423 DEBUG(1, ("Could not set domain: %s\n",
424 nt_errstr(status)));
425 ntlmssp_end(client_ntlmssp_state);
426 return status;
427 }
428
429 status = ntlmssp_set_password(*client_ntlmssp_state, opt_password);
430
431 if (!NT_STATUS_IS_OK(status)) {
432 DEBUG(1, ("Could not set password: %s\n",
433 nt_errstr(status)));
434 ntlmssp_end(client_ntlmssp_state);
435 return status;
436 }
437 return NT_STATUS_OK;
438 }
439
440 static NTSTATUS ntlm_auth_start_ntlmssp_server(NTLMSSP_STATE **ntlmssp_state)
441 {
442 NTSTATUS status = ntlmssp_server_start(ntlmssp_state);
443
444 if (!NT_STATUS_IS_OK(status)) {
445 DEBUG(1, ("Could not start NTLMSSP client: %s\n",
446 nt_errstr(status)));
447 return status;
448 }
449
450 /* Have we been given a local password, or should we ask winbind? */
451 if (opt_password) {
452 (*ntlmssp_state)->check_password = local_pw_check;
453 (*ntlmssp_state)->get_domain = lp_workgroup;
454 (*ntlmssp_state)->get_global_myname = global_myname;
455 } else {
456 (*ntlmssp_state)->check_password = winbind_pw_check;
457 (*ntlmssp_state)->get_domain = get_winbind_domain;
458 (*ntlmssp_state)->get_global_myname = get_winbind_netbios_name;
459 }
460 return NT_STATUS_OK;
461 }
462
463 static void manage_squid_ntlmssp_request(enum stdio_helper_mode stdio_helper_mode,
464 char *buf, int length)
465 {
466 static NTLMSSP_STATE *ntlmssp_state = NULL;
467 DATA_BLOB request, reply;
468 NTSTATUS nt_status;
469
470 if (strlen(buf) < 2) {
471 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
472 x_fprintf(x_stdout, "BH\n");
473 return;
474 }
475
476 if (strlen(buf) > 3) {
477 request = base64_decode_data_blob(buf + 3);
478 } else {
479 request = data_blob(NULL, 0);
480 }
481
482 if ((strncmp(buf, "PW ", 3) == 0)) {
483 /* The calling application wants us to use a local password (rather than winbindd) */
484
485 opt_password = strndup((const char *)request.data, request.length);
486
487 if (opt_password == NULL) {
488 DEBUG(1, ("Out of memory\n"));
489 x_fprintf(x_stdout, "BH\n");
490 data_blob_free(&request);
491 return;
492 }
493
494 x_fprintf(x_stdout, "OK\n");
495 data_blob_free(&request);
496 return;
497 }
498
499 if (strncmp(buf, "YR", 2) == 0) {
500 if (ntlmssp_state)
501 ntlmssp_end(&ntlmssp_state);
502 } else if (strncmp(buf, "KK", 2) == 0) {
503
504 } else {
505 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
506 x_fprintf(x_stdout, "BH\n");
507 return;
508 }
509
510 if (!ntlmssp_state) {
511 if (!NT_STATUS_IS_OK(nt_status = ntlm_auth_start_ntlmssp_server(&ntlmssp_state))) {
512 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
513 return;
514 }
515 }
516
517 DEBUG(10, ("got NTLMSSP packet:\n"));
518 dump_data(10, (const char *)request.data, request.length);
519
520 nt_status = ntlmssp_update(ntlmssp_state, request, &reply);
521
522 if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
523 char *reply_base64 = base64_encode_data_blob(reply);
524 x_fprintf(x_stdout, "TT %s\n", reply_base64);
525 SAFE_FREE(reply_base64);
526 data_blob_free(&reply);
527 DEBUG(10, ("NTLMSSP challenge\n"));
528 } else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED)) {
529 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
530 DEBUG(0, ("NTLMSSP BH: %s\n", nt_errstr(nt_status)));
531
532 ntlmssp_end(&ntlmssp_state);
533 } else if (!NT_STATUS_IS_OK(nt_status)) {
534 x_fprintf(x_stdout, "NA %s\n", nt_errstr(nt_status));
535 DEBUG(10, ("NTLMSSP %s\n", nt_errstr(nt_status)));
536 } else {
537 x_fprintf(x_stdout, "AF %s\n", (char *)ntlmssp_state->auth_context);
538 DEBUG(10, ("NTLMSSP OK!\n"));
539 }
540
541 data_blob_free(&request);
542 }
543
544 static void manage_client_ntlmssp_request(enum stdio_helper_mode stdio_helper_mode,
545 char *buf, int length)
546 {
547 static NTLMSSP_STATE *ntlmssp_state = NULL;
548 DATA_BLOB request, reply;
549 NTSTATUS nt_status;
550 BOOL first = False;
551
552 if (strlen(buf) < 2) {
553 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
554 x_fprintf(x_stdout, "BH\n");
555 return;
556 }
557
558 if (strlen(buf) > 3) {
559 request = base64_decode_data_blob(buf + 3);
560 } else {
561 request = data_blob(NULL, 0);
562 }
563
564 if (strncmp(buf, "PW ", 3) == 0) {
565 /* We asked for a password and obviously got it :-) */
566
567 opt_password = strndup((const char *)request.data, request.length);
568
569 if (opt_password == NULL) {
570 DEBUG(1, ("Out of memory\n"));
571 x_fprintf(x_stdout, "BH\n");
572 data_blob_free(&request);
573 return;
574 }
575
576 x_fprintf(x_stdout, "OK\n");
577 data_blob_free(&request);
578 return;
579 }
580
581 if (opt_password == NULL) {
582
583 /* Request a password from the calling process. After
584 sending it, the calling process should retry asking for the negotiate. */
585
586 DEBUG(10, ("Requesting password\n"));
587 x_fprintf(x_stdout, "PW\n");
588 return;
589 }
590
591 if (strncmp(buf, "YR", 2) == 0) {
592 if (ntlmssp_state)
593 ntlmssp_end(&ntlmssp_state);
594 } else if (strncmp(buf, "TT", 2) == 0) {
595
596 } else {
597 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
598 x_fprintf(x_stdout, "BH\n");
599 return;
600 }
601
602 if (!ntlmssp_state) {
603 if (!NT_STATUS_IS_OK(nt_status = ntlm_auth_start_ntlmssp_client(&ntlmssp_state))) {
604 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
605 return;
606 }
607 first = True;
608 }
609
610 DEBUG(10, ("got NTLMSSP packet:\n"));
611 dump_data(10, (const char *)request.data, request.length);
612
613 nt_status = ntlmssp_update(ntlmssp_state, request, &reply);
614
615 if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
616 char *reply_base64 = base64_encode_data_blob(reply);
617 if (first) {
618 x_fprintf(x_stdout, "YR %s\n", reply_base64);
619 } else {
620 x_fprintf(x_stdout, "KK %s\n", reply_base64);
621 }
622 SAFE_FREE(reply_base64);
623 data_blob_free(&reply);
624 DEBUG(10, ("NTLMSSP challenge\n"));
625 } else if (NT_STATUS_IS_OK(nt_status)) {
626 x_fprintf(x_stdout, "AF\n");
627 DEBUG(10, ("NTLMSSP OK!\n"));
628 if (ntlmssp_state)
629 ntlmssp_end(&ntlmssp_state);
630 } else {
631 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
632 DEBUG(0, ("NTLMSSP BH: %s\n", nt_errstr(nt_status)));
633 if (ntlmssp_state)
634 ntlmssp_end(&ntlmssp_state);
635 }
636
637 data_blob_free(&request);
638 }
639
640 static void manage_squid_basic_request(enum stdio_helper_mode stdio_helper_mode,
641 char *buf, int length)
642 {
643 char *user, *pass;
644 user=buf;
645
646 pass=memchr(buf,' ',length);
647 if (!pass) {
648 DEBUG(2, ("Password not found. Denying access\n"));
649 x_fprintf(x_stderr, "ERR\n");
650 return;
651 }
652 *pass='\0';
653 pass++;
654
655 if (stdio_helper_mode == SQUID_2_5_BASIC) {
656 rfc1738_unescape(user);
657 rfc1738_unescape(pass);
658 }
659
660 if (check_plaintext_auth(user, pass, False)) {
661 x_fprintf(x_stdout, "OK\n");
662 } else {
663 x_fprintf(x_stdout, "ERR\n");
664 }
665 }
666
667 static void offer_gss_spnego_mechs(void) {
668
669 DATA_BLOB token;
670 SPNEGO_DATA spnego;
671 ssize_t len;
672 char *reply_base64;
673
674 pstring principal;
675 pstring myname_lower;
676
677 ZERO_STRUCT(spnego);
678
679 pstrcpy(myname_lower, global_myname());
680 strlower_m(myname_lower);
681
682 pstr_sprintf(principal, "%s$@%s", myname_lower, lp_realm());
683
684 /* Server negTokenInit (mech offerings) */
685 spnego.type = SPNEGO_NEG_TOKEN_INIT;
686 spnego.negTokenInit.mechTypes = smb_xmalloc(sizeof(char *) * 3);
687 #ifdef HAVE_KRB5
688 spnego.negTokenInit.mechTypes[0] = smb_xstrdup(OID_KERBEROS5_OLD);
689 spnego.negTokenInit.mechTypes[1] = smb_xstrdup(OID_NTLMSSP);
690 spnego.negTokenInit.mechTypes[2] = NULL;
691 #else
692 spnego.negTokenInit.mechTypes[0] = smb_xstrdup(OID_NTLMSSP);
693 spnego.negTokenInit.mechTypes[1] = NULL;
694 #endif
695
696
697 spnego.negTokenInit.mechListMIC = data_blob(principal,
698 strlen(principal));
699
700 len = write_spnego_data(&token, &spnego);
701 free_spnego_data(&spnego);
702
703 if (len == -1) {
704 DEBUG(1, ("Could not write SPNEGO data blob\n"));
705 x_fprintf(x_stdout, "BH\n");
706 return;
707 }
708
709 reply_base64 = base64_encode_data_blob(token);
710 x_fprintf(x_stdout, "TT %s *\n", reply_base64);
711
712 SAFE_FREE(reply_base64);
713 data_blob_free(&token);
714 DEBUG(10, ("sent SPNEGO negTokenInit\n"));
715 return;
716 }
717
718 static void manage_gss_spnego_request(enum stdio_helper_mode stdio_helper_mode,
719 char *buf, int length)
720 {
721 static NTLMSSP_STATE *ntlmssp_state = NULL;
722 SPNEGO_DATA request, response;
723 DATA_BLOB token;
724 NTSTATUS status;
725 ssize_t len;
726
727 char *user = NULL;
728 char *domain = NULL;
729
730 const char *reply_code;
731 char *reply_base64;
732 pstring reply_argument;
733
734 if (strlen(buf) < 2) {
735
736 if (ntlmssp_state != NULL) {
737 DEBUG(1, ("Request for initial SPNEGO request where "
738 "we already have a state\n"));
739 x_fprintf(x_stdout, "BH\n");
740 return;
741 }
742
743 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
744 x_fprintf(x_stdout, "BH\n");
745 return;
746 }
747
748 if ( (strlen(buf) == 2) && (strcmp(buf, "YR") == 0) ) {
749
750 /* Initial request, get the negTokenInit offering
751 mechanisms */
752
753 offer_gss_spnego_mechs();
754 return;
755 }
756
757 /* All subsequent requests are "KK" (Knock, Knock ;)) and have
758 a blob. This might be negTokenInit or negTokenTarg */
759
760 if ( (strlen(buf) <= 3) || (strncmp(buf, "KK", 2) != 0) ) {
761 DEBUG(1, ("GSS-SPNEGO query [%s] invalid\n", buf));
762 x_fprintf(x_stdout, "BH\n");
763 return;
764 }
765
766 token = base64_decode_data_blob(buf + 3);
767 len = read_spnego_data(token, &request);
768 data_blob_free(&token);
769
770 if (len == -1) {
771 DEBUG(1, ("GSS-SPNEGO query [%s] invalid", buf));
772 x_fprintf(x_stdout, "BH\n");
773 return;
774 }
775
776 if (request.type == SPNEGO_NEG_TOKEN_INIT) {
777
778 /* Second request from Client. This is where the
779 client offers its mechanism to use. */
780
781 if ( (request.negTokenInit.mechTypes == NULL) ||
782 (request.negTokenInit.mechTypes[0] == NULL) ) {
783 DEBUG(1, ("Client did not offer any mechanism"));
784 x_fprintf(x_stdout, "BH\n");
785 return;
786 }
787
788 if (strcmp(request.negTokenInit.mechTypes[0], OID_NTLMSSP) == 0) {
789
790 if ( request.negTokenInit.mechToken.data == NULL ) {
791 DEBUG(1, ("Client did not provide NTLMSSP data\n"));
792 x_fprintf(x_stdout, "BH\n");
793 return;
794 }
795
796 if ( ntlmssp_state != NULL ) {
797 DEBUG(1, ("Client wants a new NTLMSSP challenge, but "
798 "already got one\n"));
799 x_fprintf(x_stdout, "BH\n");
800 ntlmssp_end(&ntlmssp_state);
801 return;
802 }
803
804 if (!NT_STATUS_IS_OK(status = ntlm_auth_start_ntlmssp_server(&ntlmssp_state))) {
805 x_fprintf(x_stdout, "BH %s\n", nt_errstr(status));
806 return;
807 }
808
809 DEBUG(10, ("got NTLMSSP packet:\n"));
810 dump_data(10, (const char *)request.negTokenInit.mechToken.data,
811 request.negTokenInit.mechToken.length);
812
813 response.type = SPNEGO_NEG_TOKEN_TARG;
814 response.negTokenTarg.supportedMech = strdup(OID_NTLMSSP);
815 response.negTokenTarg.mechListMIC = data_blob(NULL, 0);
816
817 status = ntlmssp_update(ntlmssp_state,
818 request.negTokenInit.mechToken,
819 &response.negTokenTarg.responseToken);
820 }
821
822 #ifdef HAVE_KRB5
823 if (strcmp(request.negTokenInit.mechTypes[0], OID_KERBEROS5_OLD) == 0) {
824
825 char *principal;
826 DATA_BLOB auth_data;
827 DATA_BLOB ap_rep;
828 DATA_BLOB session_key;
829
830 if ( request.negTokenInit.mechToken.data == NULL ) {
831 DEBUG(1, ("Client did not provide Kerberos data\n"));
832 x_fprintf(x_stdout, "BH\n");
833 return;
834 }
835
836 response.type = SPNEGO_NEG_TOKEN_TARG;
837 response.negTokenTarg.supportedMech = strdup(OID_KERBEROS5_OLD);
838 response.negTokenTarg.mechListMIC = data_blob(NULL, 0);
839 response.negTokenTarg.responseToken = data_blob(NULL, 0);
840
841 status = ads_verify_ticket(lp_realm(),
842 &request.negTokenInit.mechToken,
843 &principal, &auth_data, &ap_rep,
844 &session_key);
845
846 /* Now in "principal" we have the name we are
847 authenticated as. */
848
849 if (NT_STATUS_IS_OK(status)) {
850
851 domain = strchr(principal, '@');
852
853 if (domain == NULL) {
854 DEBUG(1, ("Did not get a valid principal "
855 "from ads_verify_ticket\n"));
856 x_fprintf(x_stdout, "BH\n");
857 return;
858 }
859
860 *domain++ = '\0';
861 domain = strdup(domain);
862 user = strdup(principal);
863
864 data_blob_free(&ap_rep);
865 data_blob_free(&auth_data);
866
867 SAFE_FREE(principal);
868 }
869 }
870 #endif
871
872 } else {
873
874 if ( (request.negTokenTarg.supportedMech == NULL) ||
875 ( strcmp(request.negTokenTarg.supportedMech, OID_NTLMSSP) != 0 ) ) {
876 /* Kerberos should never send a negTokenTarg, OID_NTLMSSP
877 is the only one we support that sends this stuff */
878 DEBUG(1, ("Got a negTokenTarg for something non-NTLMSSP: %s\n",
879 request.negTokenTarg.supportedMech));
880 x_fprintf(x_stdout, "BH\n");
881 return;
882 }
883
884 if (request.negTokenTarg.responseToken.data == NULL) {
885 DEBUG(1, ("Got a negTokenTarg without a responseToken!\n"));
886 x_fprintf(x_stdout, "BH\n");
887 return;
888 }
889
890 status = ntlmssp_update(ntlmssp_state,
891 request.negTokenTarg.responseToken,
892 &response.negTokenTarg.responseToken);
893
894 response.type = SPNEGO_NEG_TOKEN_TARG;
895 response.negTokenTarg.supportedMech = strdup(OID_NTLMSSP);
896 response.negTokenTarg.mechListMIC = data_blob(NULL, 0);
897
898 if (NT_STATUS_IS_OK(status)) {
899 user = strdup(ntlmssp_state->user);
900 domain = strdup(ntlmssp_state->domain);
901 ntlmssp_end(&ntlmssp_state);
902 }
903 }
904
905 free_spnego_data(&request);
906
907 if (NT_STATUS_IS_OK(status)) {
908 response.negTokenTarg.negResult = SPNEGO_ACCEPT_COMPLETED;
909 reply_code = "AF";
910 pstr_sprintf(reply_argument, "%s\\%s", domain, user);
911 } else if (NT_STATUS_EQUAL(status,
912 NT_STATUS_MORE_PROCESSING_REQUIRED)) {
913 response.negTokenTarg.negResult = SPNEGO_ACCEPT_INCOMPLETE;
914 reply_code = "TT";
915 pstr_sprintf(reply_argument, "*");
916 } else {
917 response.negTokenTarg.negResult = SPNEGO_REJECT;
918 reply_code = "NA";
919 pstrcpy(reply_argument, nt_errstr(status));
920 }
921
922 SAFE_FREE(user);
923 SAFE_FREE(domain);
924
925 len = write_spnego_data(&token, &response);
926 free_spnego_data(&response);
927
928 if (len == -1) {
929 DEBUG(1, ("Could not write SPNEGO data blob\n"));
930 x_fprintf(x_stdout, "BH\n");
931 return;
932 }
933
934 reply_base64 = base64_encode_data_blob(token);
935
936 x_fprintf(x_stdout, "%s %s %s\n",
937 reply_code, reply_base64, reply_argument);
938
939 SAFE_FREE(reply_base64);
940 data_blob_free(&token);
941
942 return;
943 }
944
945 static NTLMSSP_STATE *client_ntlmssp_state = NULL;
946
947 static BOOL manage_client_ntlmssp_init(SPNEGO_DATA spnego)
948 {
949 NTSTATUS status;
950 DATA_BLOB null_blob = data_blob(NULL, 0);
951 DATA_BLOB to_server;
952 char *to_server_base64;
953 const char *my_mechs[] = {OID_NTLMSSP, NULL};
954
955 DEBUG(10, ("Got spnego negTokenInit with NTLMSSP\n"));
956
957 if (client_ntlmssp_state != NULL) {
958 DEBUG(1, ("Request for initial SPNEGO request where "
959 "we already have a state\n"));
960 return False;
961 }
962
963 if (!client_ntlmssp_state) {
964 if (!NT_STATUS_IS_OK(status = ntlm_auth_start_ntlmssp_client(&client_ntlmssp_state))) {
965 x_fprintf(x_stdout, "BH %s\n", nt_errstr(status));
966 return False;
967 }
968 }
969
970
971 if (opt_password == NULL) {
972
973 /* Request a password from the calling process. After
974 sending it, the calling process should retry with
975 the negTokenInit. */
976
977 DEBUG(10, ("Requesting password\n"));
978 x_fprintf(x_stdout, "PW\n");
979 return True;
980 }
981
982 spnego.type = SPNEGO_NEG_TOKEN_INIT;
983 spnego.negTokenInit.mechTypes = my_mechs;
984 spnego.negTokenInit.reqFlags = 0;
985 spnego.negTokenInit.mechListMIC = null_blob;
986
987 status = ntlmssp_update(client_ntlmssp_state, null_blob,
988 &spnego.negTokenInit.mechToken);
989
990 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
991 DEBUG(1, ("Expected MORE_PROCESSING_REQUIRED, got: %s\n",
992 nt_errstr(status)));
993 ntlmssp_end(&client_ntlmssp_state);
994 return False;
995 }
996
997 write_spnego_data(&to_server, &spnego);
998 data_blob_free(&spnego.negTokenInit.mechToken);
999
1000 to_server_base64 = base64_encode_data_blob(to_server);
1001 data_blob_free(&to_server);
1002 x_fprintf(x_stdout, "KK %s\n", to_server_base64);
1003 SAFE_FREE(to_server_base64);
1004 return True;
1005 }
1006
1007 static void manage_client_ntlmssp_targ(SPNEGO_DATA spnego)
1008 {
1009 NTSTATUS status;
1010 DATA_BLOB null_blob = data_blob(NULL, 0);
1011 DATA_BLOB request;
1012 DATA_BLOB to_server;
1013 char *to_server_base64;
1014
1015 DEBUG(10, ("Got spnego negTokenTarg with NTLMSSP\n"));
1016
1017 if (client_ntlmssp_state == NULL) {
1018 DEBUG(1, ("Got NTLMSSP tArg without a client state\n"));
1019 x_fprintf(x_stdout, "BH\n");
1020 ntlmssp_end(&client_ntlmssp_state);
1021 return;
1022 }
1023
1024 if (spnego.negTokenTarg.negResult == SPNEGO_REJECT) {
1025 x_fprintf(x_stdout, "NA\n");
1026 ntlmssp_end(&client_ntlmssp_state);
1027 return;
1028 }
1029
1030 if (spnego.negTokenTarg.negResult == SPNEGO_ACCEPT_COMPLETED) {
1031 x_fprintf(x_stdout, "AF\n");
1032 ntlmssp_end(&client_ntlmssp_state);
1033 return;
1034 }
1035
1036 status = ntlmssp_update(client_ntlmssp_state,
1037 spnego.negTokenTarg.responseToken,
1038 &request);
1039
1040 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1041 DEBUG(1, ("Expected MORE_PROCESSING_REQUIRED from "
1042 "ntlmssp_client_update, got: %s\n",
1043 nt_errstr(status)));
1044 x_fprintf(x_stdout, "BH\n");
1045 data_blob_free(&request);
1046 ntlmssp_end(&client_ntlmssp_state);
1047 return;
1048 }
1049
1050 spnego.type = SPNEGO_NEG_TOKEN_TARG;
1051 spnego.negTokenTarg.negResult = SPNEGO_ACCEPT_INCOMPLETE;
1052 spnego.negTokenTarg.supportedMech = OID_NTLMSSP;
1053 spnego.negTokenTarg.responseToken = request;
1054 spnego.negTokenTarg.mechListMIC = null_blob;
1055
1056 write_spnego_data(&to_server, &spnego);
1057 data_blob_free(&request);
1058
1059 to_server_base64 = base64_encode_data_blob(to_server);
1060 data_blob_free(&to_server);
1061 x_fprintf(x_stdout, "KK %s\n", to_server_base64);
1062 SAFE_FREE(to_server_base64);
1063 return;
1064 }
1065
1066 #ifdef HAVE_KRB5
1067
1068 static BOOL manage_client_krb5_init(SPNEGO_DATA spnego)
1069 {
1070 char *principal;
1071 DATA_BLOB tkt, to_server;
1072 DATA_BLOB session_key_krb5;
1073 SPNEGO_DATA reply;
1074 char *reply_base64;
1075 int retval;
1076
1077 const char *my_mechs[] = {OID_KERBEROS5_OLD, NULL};
1078 ssize_t len;
1079
1080 if ( (spnego.negTokenInit.mechListMIC.data == NULL) ||
1081 (spnego.negTokenInit.mechListMIC.length == 0) ) {
1082 DEBUG(1, ("Did not get a principal for krb5\n"));
1083 return False;
1084 }
1085
1086 principal = malloc(spnego.negTokenInit.mechListMIC.length+1);
1087
1088 if (principal == NULL) {
1089 DEBUG(1, ("Could not malloc principal\n"));
1090 return False;
1091 }
1092
1093 memcpy(principal, spnego.negTokenInit.mechListMIC.data,
1094 spnego.negTokenInit.mechListMIC.length);
1095 principal[spnego.negTokenInit.mechListMIC.length] = '\0';
1096
1097 retval = cli_krb5_get_ticket(principal, 0, &tkt, &session_key_krb5);
1098
1099 if (retval) {
1100
1101 pstring user;
1102
1103 /* Let's try to first get the TGT, for that we need a
1104 password. */
1105
1106 if (opt_password == NULL) {
1107 DEBUG(10, ("Requesting password\n"));
1108 x_fprintf(x_stdout, "PW\n");
1109 return True;
1110 }
1111
1112 pstr_sprintf(user, "%s@%s", opt_username, opt_domain);
1113
1114 if ((retval = kerberos_kinit_password(user, opt_password,
1115 0, NULL))) {
1116 DEBUG(10, ("Requesting TGT failed: %s\n", error_message(retval)));
1117 x_fprintf(x_stdout, "NA\n");
1118 return True;
1119 }
1120
1121 retval = cli_krb5_get_ticket(principal, 0, &tkt, &session_key_krb5);
1122
1123 if (retval) {
1124 DEBUG(10, ("Kinit suceeded, but getting a ticket failed: %s\n", error_message(retval)));
1125 }
1126 }
1127
1128 data_blob_free(&session_key_krb5);
1129
1130 ZERO_STRUCT(reply);
1131
1132 reply.type = SPNEGO_NEG_TOKEN_INIT;
1133 reply.negTokenInit.mechTypes = my_mechs;
1134 reply.negTokenInit.reqFlags = 0;
1135 reply.negTokenInit.mechToken = tkt;
1136 reply.negTokenInit.mechListMIC = data_blob(NULL, 0);
1137
1138 len = write_spnego_data(&to_server, &reply);
1139 data_blob_free(&tkt);
1140
1141 if (len == -1) {
1142 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1143 return False;
1144 }
1145
1146 reply_base64 = base64_encode_data_blob(to_server);
1147 x_fprintf(x_stdout, "KK %s *\n", reply_base64);
1148
1149 SAFE_FREE(reply_base64);
1150 data_blob_free(&to_server);
1151 DEBUG(10, ("sent GSS-SPNEGO KERBEROS5 negTokenInit\n"));
1152 return True;
1153 }
1154
1155 static void manage_client_krb5_targ(SPNEGO_DATA spnego)
1156 {
1157 switch (spnego.negTokenTarg.negResult) {
1158 case SPNEGO_ACCEPT_INCOMPLETE:
1159 DEBUG(1, ("Got a Kerberos negTokenTarg with ACCEPT_INCOMPLETE\n"));
1160 x_fprintf(x_stdout, "BH\n");
1161 break;
1162 case SPNEGO_ACCEPT_COMPLETED:
1163 DEBUG(10, ("Accept completed\n"));
1164 x_fprintf(x_stdout, "AF\n");
1165 break;
1166 case SPNEGO_REJECT:
1167 DEBUG(10, ("Rejected\n"));
1168 x_fprintf(x_stdout, "NA\n");
1169 break;
1170 default:
1171 DEBUG(1, ("Got an invalid negTokenTarg\n"));
1172 x_fprintf(x_stdout, "AF\n");
1173 }
1174 }
1175
1176 #endif
1177
1178 static void manage_gss_spnego_client_request(enum stdio_helper_mode stdio_helper_mode,
1179 char *buf, int length)
1180 {
1181 DATA_BLOB request;
1182 SPNEGO_DATA spnego;
1183 ssize_t len;
1184
1185 if (strlen(buf) <= 3) {
1186 DEBUG(1, ("SPNEGO query [%s] too short\n", buf));
1187 x_fprintf(x_stdout, "BH\n");
1188 return;
1189 }
1190
1191 request = base64_decode_data_blob(buf+3);
1192
1193 if (strncmp(buf, "PW ", 3) == 0) {
1194
1195 /* We asked for a password and obviously got it :-) */
1196
1197 opt_password = strndup((const char *)request.data, request.length);
1198
1199 if (opt_password == NULL) {
1200 DEBUG(1, ("Out of memory\n"));
1201 x_fprintf(x_stdout, "BH\n");
1202 data_blob_free(&request);
1203 return;
1204 }
1205
1206 x_fprintf(x_stdout, "OK\n");
1207 data_blob_free(&request);
1208 return;
1209 }
1210
1211 if ( (strncmp(buf, "TT ", 3) != 0) &&
1212 (strncmp(buf, "AF ", 3) != 0) &&
1213 (strncmp(buf, "NA ", 3) != 0) ) {
1214 DEBUG(1, ("SPNEGO request [%s] invalid\n", buf));
1215 x_fprintf(x_stdout, "BH\n");
1216 data_blob_free(&request);
1217 return;
1218 }
1219
1220 /* So we got a server challenge to generate a SPNEGO
1221 client-to-server request... */
1222
1223 len = read_spnego_data(request, &spnego);
1224 data_blob_free(&request);
1225
1226 if (len == -1) {
1227 DEBUG(1, ("Could not read SPNEGO data for [%s]\n", buf));
1228 x_fprintf(x_stdout, "BH\n");
1229 return;
1230 }
1231
1232 if (spnego.type == SPNEGO_NEG_TOKEN_INIT) {
1233
1234 /* The server offers a list of mechanisms */
1235
1236 const char **mechType = spnego.negTokenInit.mechTypes;
1237
1238 while (*mechType != NULL) {
1239
1240 #ifdef HAVE_KRB5
1241 if ( (strcmp(*mechType, OID_KERBEROS5_OLD) == 0) ||
1242 (strcmp(*mechType, OID_KERBEROS5) == 0) ) {
1243 if (manage_client_krb5_init(spnego))
1244 goto out;
1245 }
1246 #endif
1247
1248 if (strcmp(*mechType, OID_NTLMSSP) == 0) {
1249 if (manage_client_ntlmssp_init(spnego))
1250 goto out;
1251 }
1252
1253 mechType++;
1254 }
1255
1256 DEBUG(1, ("Server offered no compatible mechanism\n"));
1257 x_fprintf(x_stdout, "BH\n");
1258 return;
1259 }
1260
1261 if (spnego.type == SPNEGO_NEG_TOKEN_TARG) {
1262
1263 if (spnego.negTokenTarg.supportedMech == NULL) {
1264 /* On accept/reject Windows does not send the
1265 mechanism anymore. Handle that here and
1266 shut down the mechanisms. */
1267
1268 switch (spnego.negTokenTarg.negResult) {
1269 case SPNEGO_ACCEPT_COMPLETED:
1270 x_fprintf(x_stdout, "AF\n");
1271 break;
1272 case SPNEGO_REJECT:
1273 x_fprintf(x_stdout, "NA\n");
1274 break;
1275 default:
1276 DEBUG(1, ("Got a negTokenTarg with no mech and an "
1277 "unknown negResult: %d\n",
1278 spnego.negTokenTarg.negResult));
1279 x_fprintf(x_stdout, "BH\n");
1280 }
1281
1282 ntlmssp_end(&client_ntlmssp_state);
1283 goto out;
1284 }
1285
1286 if (strcmp(spnego.negTokenTarg.supportedMech,
1287 OID_NTLMSSP) == 0) {
1288 manage_client_ntlmssp_targ(spnego);
1289 goto out;
1290 }
1291
1292 #if HAVE_KRB5
1293 if (strcmp(spnego.negTokenTarg.supportedMech,
1294 OID_KERBEROS5_OLD) == 0) {
1295 manage_client_krb5_targ(spnego);
1296 goto out;
1297 }
1298 #endif
1299
1300 }
1301
1302 DEBUG(1, ("Got an SPNEGO token I could not handle [%s]!\n", buf));
1303 x_fprintf(x_stdout, "BH\n");
1304 return;
1305
1306 out:
1307 free_spnego_data(&spnego);
1308 return;
1309 }
1310
1311 static void manage_squid_request(enum stdio_helper_mode helper_mode, stdio_helper_function fn)
1312 {
1313 char buf[SQUID_BUFFER_SIZE+1];
1314 int length;
1315 char *c;
1316 static BOOL err;
1317
1318 /* this is not a typo - x_fgets doesn't work too well under squid */
1319 if (fgets(buf, sizeof(buf)-1, stdin) == NULL) {
1320 DEBUG(1, ("fgets() failed! dying..... errno=%d (%s)\n", ferror(stdin),
1321 strerror(ferror(stdin))));
1322 exit(1); /* BIIG buffer */
1323 }
1324
1325 c=memchr(buf,'\n',sizeof(buf)-1);
1326 if (c) {
1327 *c = '\0';
1328 length = c-buf;
1329 } else {
1330 err = 1;
1331 return;
1332 }
1333 if (err) {
1334 DEBUG(2, ("Oversized message\n"));
1335 x_fprintf(x_stderr, "ERR\n");
1336 err = 0;
1337 return;
1338 }
1339
1340 DEBUG(10, ("Got '%s' from squid (length: %d).\n",buf,length));
1341
1342 if (buf[0] == '\0') {
1343 DEBUG(2, ("Invalid Request\n"));
1344 x_fprintf(x_stderr, "ERR\n");
1345 return;
1346 }
1347
1348 fn(helper_mode, buf, length);
1349 }
1350
1351
1352 static void squid_stream(enum stdio_helper_mode stdio_mode, stdio_helper_function fn) {
1353 /* initialize FDescs */
1354 x_setbuf(x_stdout, NULL);
1355 x_setbuf(x_stderr, NULL);
1356 while(1) {
1357 manage_squid_request(stdio_mode, fn);
1358 }
1359 }
1360
1361
1362 /* Authenticate a user with a challenge/response */
1363
1364 static BOOL check_auth_crap(void)
1365 {
1366 NTSTATUS nt_status;
1367 uint32 flags = 0;
1368 char lm_key[8];
1369 char nt_key[16];
1370 char *hex_lm_key;
1371 char *hex_nt_key;
1372 char *error_string;
1373 static uint8 zeros[16];
1374
1375 x_setbuf(x_stdout, NULL);
1376
1377 if (request_lm_key)
1378 flags |= WBFLAG_PAM_LMKEY;
1379
1380 if (request_nt_key)
1381 flags |= WBFLAG_PAM_NTKEY;
1382
1383 nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
1384 opt_workstation,
1385 &opt_challenge,
1386 &opt_lm_response,
1387 &opt_nt_response,
1388 flags,
1389 (unsigned char *)lm_key,
1390 (unsigned char *)nt_key,
1391 &error_string, NULL);
1392
1393 if (!NT_STATUS_IS_OK(nt_status)) {
1394 x_fprintf(x_stdout, "%s (0x%x)\n",
1395 error_string,
1396 NT_STATUS_V(nt_status));
1397 SAFE_FREE(error_string);
1398 return False;
1399 }
1400
1401 if (request_lm_key
1402 && (memcmp(zeros, lm_key,
1403 sizeof(lm_key)) != 0)) {
1404 hex_encode((const unsigned char *)lm_key,
1405 sizeof(lm_key),
1406 &hex_lm_key);
1407 x_fprintf(x_stdout, "LM_KEY: %s\n", hex_lm_key);
1408 SAFE_FREE(hex_lm_key);
1409 }
1410 if (request_nt_key
1411 && (memcmp(zeros, nt_key,
1412 sizeof(nt_key)) != 0)) {
1413 hex_encode((const unsigned char *)nt_key,
1414 sizeof(nt_key),
1415 &hex_nt_key);
1416 x_fprintf(x_stdout, "NT_KEY: %s\n", hex_nt_key);
1417 SAFE_FREE(hex_nt_key);
1418 }
1419
1420 return True;
1421 }
1422
1423 /*
1424 Authenticate a user with a challenge/response, checking session key
1425 and valid authentication types
1426 */
1427
1428 static DATA_BLOB get_challenge(void)
1429 {
1430 static DATA_BLOB chal;
1431 if (opt_challenge.length)
1432 return opt_challenge;
1433
1434 chal = data_blob(NULL, 8);
1435
1436 generate_random_buffer(chal.data, chal.length, False);
1437 return chal;
1438 }
1439
1440 /*
1441 * Test the normal 'LM and NTLM' combination
1442 */
1443
1444 static BOOL test_lm_ntlm_broken(enum ntlm_break break_which)
1445 {
1446 BOOL pass = True;
1447 NTSTATUS nt_status;
1448 uint32 flags = 0;
1449 DATA_BLOB lm_response = data_blob(NULL, 24);
1450 DATA_BLOB nt_response = data_blob(NULL, 24);
1451 DATA_BLOB session_key = data_blob(NULL, 16);
1452
1453 uchar lm_key[8];
1454 uchar nt_key[16];
1455 uchar lm_hash[16];
1456 uchar nt_hash[16];
1457 DATA_BLOB chall = get_challenge();
1458 char *error_string;
1459
1460 ZERO_STRUCT(lm_key);
1461 ZERO_STRUCT(nt_key);
1462
1463 flags |= WBFLAG_PAM_LMKEY;
1464 flags |= WBFLAG_PAM_NTKEY;
1465
1466 SMBencrypt(opt_password,chall.data,lm_response.data);
1467 E_deshash(opt_password, lm_hash);
1468
1469 SMBNTencrypt(opt_password,chall.data,nt_response.data);
1470
1471 E_md4hash(opt_password, nt_hash);
1472 SMBsesskeygen_ntv1(nt_hash, NULL, session_key.data);
1473
1474 switch (break_which) {
1475 case BREAK_NONE:
1476 break;
1477 case BREAK_LM:
1478 lm_response.data[0]++;
1479 break;
1480 case BREAK_NT:
1481 nt_response.data[0]++;
1482 break;
1483 case NO_LM:
1484 data_blob_free(&lm_response);
1485 break;
1486 case NO_NT:
1487 data_blob_free(&nt_response);
1488 break;
1489 }
1490
1491 nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
1492 opt_workstation,
1493 &chall,
1494 &lm_response,
1495 &nt_response,
1496 flags,
1497 lm_key,
1498 nt_key,
1499 &error_string, NULL);
1500
1501 data_blob_free(&lm_response);
1502
1503 if (!NT_STATUS_IS_OK(nt_status)) {
1504 d_printf("%s (0x%x)\n",
1505 error_string,
1506 NT_STATUS_V(nt_status));
1507 SAFE_FREE(error_string);
1508 return break_which == BREAK_NT;
1509 }
1510
1511 if (memcmp(lm_hash, lm_key,
1512 sizeof(lm_key)) != 0) {
1513 DEBUG(1, ("LM Key does not match expectations!\n"));
1514 DEBUG(1, ("lm_key:\n"));
1515 dump_data(1, (const char *)lm_key, 8);
1516 DEBUG(1, ("expected:\n"));
1517 dump_data(1, (const char *)lm_hash, 8);
1518 pass = False;
1519 }
1520
1521 if (break_which == NO_NT) {
1522 if (memcmp(lm_hash, nt_key,
1523 8) != 0) {
1524 DEBUG(1, ("NT Session Key does not match expectations (should be LM hash)!\n"));
1525 DEBUG(1, ("nt_key:\n"));
1526 dump_data(1, (const char *)nt_key, sizeof(nt_key));
1527 DEBUG(1, ("expected:\n"));
1528 dump_data(1, (const char *)lm_hash, sizeof(lm_hash));
1529 pass = False;
1530 }
1531 } else {
1532 if (memcmp(session_key.data, nt_key,
1533 sizeof(nt_key)) != 0) {
1534 DEBUG(1, ("NT Session Key does not match expectations!\n"));
1535 DEBUG(1, ("nt_key:\n"));
1536 dump_data(1, (const char *)nt_key, 16);
1537 DEBUG(1, ("expected:\n"));
1538 dump_data(1, (const char *)session_key.data, session_key.length);
1539 pass = False;
1540 }
1541 }
1542 return pass;
1543 }
1544
1545 /*
1546 * Test LM authentication, no NT response supplied
1547 */
1548
1549 static BOOL test_lm(void)
1550 {
1551
1552 return test_lm_ntlm_broken(NO_NT);
1553 }
1554
1555 /*
1556 * Test the NTLM response only, no LM.
1557 */
1558
1559 static BOOL test_ntlm(void)
1560 {
1561 return test_lm_ntlm_broken(NO_LM);
1562 }
1563
1564 /*
1565 * Test the NTLM response only, but in the LM field.
1566 */
1567
1568 static BOOL test_ntlm_in_lm(void)
1569 {
1570 BOOL pass = True;
1571 NTSTATUS nt_status;
1572 uint32 flags = 0;
1573 DATA_BLOB nt_response = data_blob(NULL, 24);
1574
1575 uchar lm_key[8];
1576 uchar lm_hash[16];
1577 uchar nt_key[16];
1578 DATA_BLOB chall = get_challenge();
1579 char *error_string;
1580
1581 ZERO_STRUCT(nt_key);
1582
1583 flags |= WBFLAG_PAM_LMKEY;
1584 flags |= WBFLAG_PAM_NTKEY;
1585
1586 SMBNTencrypt(opt_password,chall.data,nt_response.data);
1587
1588 E_deshash(opt_password, lm_hash);
1589
1590 nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
1591 opt_workstation,
1592 &chall,
1593 &nt_response,
1594 NULL,
1595 flags,
1596 lm_key,
1597 nt_key,
1598 &error_string, NULL);
1599
1600 data_blob_free(&nt_response);
1601
1602 if (!NT_STATUS_IS_OK(nt_status)) {
1603 d_printf("%s (0x%x)\n",
1604 error_string,
1605 NT_STATUS_V(nt_status));
1606 SAFE_FREE(error_string);
1607 return False;
1608 }
1609
1610 if (memcmp(lm_hash, lm_key,
1611 sizeof(lm_key)) != 0) {
1612 DEBUG(1, ("LM Key does not match expectations!\n"));
1613 DEBUG(1, ("lm_key:\n"));
1614 dump_data(1, (const char *)lm_key, 8);
1615 DEBUG(1, ("expected:\n"));
1616 dump_data(1, (const char *)lm_hash, 8);
1617 pass = False;
1618 }
1619 if (memcmp(lm_hash, nt_key, 8) != 0) {
1620 DEBUG(1, ("Session Key (first 8 lm hash) does not match expectations!\n"));
1621 DEBUG(1, ("nt_key:\n"));
1622 dump_data(1, (const char *)nt_key, 16);
1623 DEBUG(1, ("expected:\n"));
1624 dump_data(1, (const char *)lm_hash, 8);
1625 pass = False;
1626 }
1627 return pass;
1628 }
1629
1630 /*
1631 * Test the NTLM response only, but in the both the NT and LM fields.
1632 */
1633
1634 static BOOL test_ntlm_in_both(void)
1635 {
1636 BOOL pass = True;
1637 NTSTATUS nt_status;
1638 uint32 flags = 0;
1639 DATA_BLOB nt_response = data_blob(NULL, 24);
1640 DATA_BLOB session_key = data_blob(NULL, 16);
1641
1642 char lm_key[8];
1643 char lm_hash[16];
1644 char nt_key[16];
1645 char nt_hash[16];
1646 DATA_BLOB chall = get_challenge();
1647 char *error_string;
1648
1649 ZERO_STRUCT(lm_key);
1650 ZERO_STRUCT(nt_key);
1651
1652 flags |= WBFLAG_PAM_LMKEY;
1653 flags |= WBFLAG_PAM_NTKEY;
1654
1655 SMBNTencrypt(opt_password,chall.data,nt_response.data);
1656 E_md4hash(opt_password, (unsigned char *)nt_hash);
1657 SMBsesskeygen_ntv1((const unsigned char *)nt_hash, NULL, session_key.data);
1658
1659 E_deshash(opt_password, (unsigned char *)lm_hash);
1660
1661 nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
1662 opt_workstation,
1663 &chall,
1664 &nt_response,
1665 &nt_response,
1666 flags,
1667 (unsigned char *)lm_key,
1668 (unsigned char *)nt_key,
1669 &error_string, NULL);
1670
1671 data_blob_free(&nt_response);
1672
1673 if (!NT_STATUS_IS_OK(nt_status)) {
1674 d_printf("%s (0x%x)\n",
1675 error_string,
1676 NT_STATUS_V(nt_status));
1677 SAFE_FREE(error_string);
1678 return False;
1679 }
1680
1681 if (memcmp(lm_hash, lm_key,
1682 sizeof(lm_key)) != 0) {
1683 DEBUG(1, ("LM Key does not match expectations!\n"));
1684 DEBUG(1, ("lm_key:\n"));
1685 dump_data(1, lm_key, 8);
1686 DEBUG(1, ("expected:\n"));
1687 dump_data(1, lm_hash, 8);
1688 pass = False;
1689 }
1690 if (memcmp(session_key.data, nt_key,
1691 sizeof(nt_key)) != 0) {
1692 DEBUG(1, ("NT Session Key does not match expectations!\n"));
1693 DEBUG(1, ("nt_key:\n"));
1694 dump_data(1, nt_key, 16);
1695 DEBUG(1, ("expected:\n"));
1696 dump_data(1, (const char *)session_key.data, session_key.length);
1697 pass = False;
1698 }
1699
1700
1701 return pass;
1702 }
1703
1704 /*
1705 * Test the NTLMv2 and LMv2 responses
1706 */
1707
1708 static BOOL test_lmv2_ntlmv2_broken(enum ntlm_break break_which)
1709 {
1710 BOOL pass = True;
1711 NTSTATUS nt_status;
1712 uint32 flags = 0;
1713 DATA_BLOB ntlmv2_response = data_blob(NULL, 0);
1714 DATA_BLOB lmv2_response = data_blob(NULL, 0);
1715 DATA_BLOB nt_session_key = data_blob(NULL, 0);
1716 DATA_BLOB names_blob = NTLMv2_generate_names_blob(get_winbind_netbios_name(), get_winbind_domain());
1717
1718 uchar nt_key[16];
1719 DATA_BLOB chall = get_challenge();
1720 char *error_string;
1721
1722 ZERO_STRUCT(nt_key);
1723
1724 flags |= WBFLAG_PAM_NTKEY;
1725
1726 if (!SMBNTLMv2encrypt(opt_username, opt_domain, opt_password, &chall,
1727 &names_blob,
1728 &lmv2_response, &ntlmv2_response,
1729 &nt_session_key)) {
1730 data_blob_free(&names_blob);
1731 return False;
1732 }
1733 data_blob_free(&names_blob);
1734
1735 switch (break_which) {
1736 case BREAK_NONE:
1737 break;
1738 case BREAK_LM:
1739 lmv2_response.data[0]++;
1740 break;
1741 case BREAK_NT:
1742 ntlmv2_response.data[0]++;
1743 break;
1744 case NO_LM:
1745 data_blob_free(&lmv2_response);
1746 break;
1747 case NO_NT:
1748 data_blob_free(&ntlmv2_response);
1749 break;
1750 }
1751
1752 nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
1753 opt_workstation,
1754 &chall,
1755 &lmv2_response,
1756 &ntlmv2_response,
1757 flags,
1758 NULL,
1759 nt_key,
1760 &error_string, NULL);
1761
1762 data_blob_free(&lmv2_response);
1763 data_blob_free(&ntlmv2_response);
1764
1765 if (!NT_STATUS_IS_OK(nt_status)) {
1766 d_printf("%s (0x%x)\n",
1767 error_string,
1768 NT_STATUS_V(nt_status));
1769 SAFE_FREE(error_string);
1770 return break_which == BREAK_NT;
1771 }
1772
1773 if (break_which != NO_NT && break_which != BREAK_NT && memcmp(nt_session_key.data, nt_key,
1774 sizeof(nt_key)) != 0) {
1775 DEBUG(1, ("NT Session Key does not match expectations!\n"));
1776 DEBUG(1, ("nt_key:\n"));
1777 dump_data(1, (const char *)nt_key, 16);
1778 DEBUG(1, ("expected:\n"));
1779 dump_data(1, (const char *)nt_session_key.data, nt_session_key.length);
1780 pass = False;
1781 }
1782 return pass;
1783 }
1784
1785 /*
1786 * Test the NTLMv2 and LMv2 responses
1787 */
1788
1789 static BOOL test_lmv2_ntlmv2(void)
1790 {
1791 return test_lmv2_ntlmv2_broken(BREAK_NONE);
1792 }
1793
1794 /*
1795 * Test the LMv2 response only
1796 */
1797
1798 static BOOL test_lmv2(void)
1799 {
1800 return test_lmv2_ntlmv2_broken(NO_NT);
1801 }
1802
1803 /*
1804 * Test the NTLMv2 response only
1805 */
1806
1807 static BOOL test_ntlmv2(void)
1808 {
1809 return test_lmv2_ntlmv2_broken(NO_LM);
1810 }
1811
1812 static BOOL test_lm_ntlm(void)
1813 {
1814 return test_lm_ntlm_broken(BREAK_NONE);
1815 }
1816
1817 static BOOL test_ntlm_lm_broken(void)
1818 {
1819 return test_lm_ntlm_broken(BREAK_LM);
1820 }
1821
1822 static BOOL test_ntlm_ntlm_broken(void)
1823 {
1824 return test_lm_ntlm_broken(BREAK_NT);
1825 }
1826
1827 static BOOL test_ntlmv2_lmv2_broken(void)
1828 {
1829 return test_lmv2_ntlmv2_broken(BREAK_LM);
1830 }
1831
1832 static BOOL test_ntlmv2_ntlmv2_broken(void)
1833 {
1834 return test_lmv2_ntlmv2_broken(BREAK_NT);
1835 }
1836
1837 static BOOL test_plaintext(enum ntlm_break break_which)
1838 {
1839 NTSTATUS nt_status;
1840 uint32 flags = 0;
1841 DATA_BLOB nt_response = data_blob(NULL, 0);
1842 DATA_BLOB lm_response = data_blob(NULL, 0);
1843 char *password;
1844
1845 uchar nt_key[16];
1846 uchar lm_key[16];
1847 static const uchar zeros[8];
1848 DATA_BLOB chall = data_blob(zeros, sizeof(zeros));
1849 char *error_string;
1850
1851 ZERO_STRUCT(nt_key);
1852
1853 flags |= WBFLAG_PAM_NTKEY;
1854 flags |= WBFLAG_PAM_LMKEY;
1855
1856 if ((push_ucs2_allocate((smb_ucs2_t **)&nt_response.data, opt_password)) == -1) {
1857 DEBUG(0, ("push_ucs2_allocate failed!\n"));
1858 exit(1);
1859 }
1860
1861 nt_response.length = strlen_w(((void *)nt_response.data))*sizeof(smb_ucs2_t);
1862
1863 password = strdup_upper(opt_password);
1864
1865 if ((convert_string_allocate(NULL, CH_UNIX,
1866 CH_DOS, password,
1867 strlen(password)+1,
1868 (void**)&lm_response.data,True)) == -1) {
1869 DEBUG(0, ("push_ascii_allocate failed!\n"));
1870 exit(1);
1871 }
1872
1873 SAFE_FREE(password);
1874
1875 lm_response.length = strlen(lm_response.data);
1876
1877 switch (break_which) {
1878 case BREAK_NONE:
1879 break;
1880 case BREAK_LM:
1881 lm_response.data[0]++;
1882 break;
1883 case BREAK_NT:
1884 nt_response.data[0]++;
1885 break;
1886 case NO_LM:
1887 SAFE_FREE(lm_response.data);
1888 lm_response.length = 0;
1889 break;
1890 case NO_NT:
1891 SAFE_FREE(nt_response.data);
1892 nt_response.length = 0;
1893 break;
1894 }
1895
1896 nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
1897 opt_workstation,
1898 &chall,
1899 &lm_response,
1900 &nt_response,
1901 flags,
1902 lm_key,
1903 nt_key,
1904 &error_string, NULL);
1905
1906 SAFE_FREE(nt_response.data);
1907 SAFE_FREE(lm_response.data);
1908 data_blob_free(&chall);
1909
1910 if (!NT_STATUS_IS_OK(nt_status)) {
1911 d_printf("%s (0x%x)\n",
1912 error_string,
1913 NT_STATUS_V(nt_status));
1914 SAFE_FREE(error_string);
1915 return break_which == BREAK_NT;
1916 }
1917
1918 return break_which != BREAK_NT;
1919 }
1920
1921 static BOOL test_plaintext_none_broken(void) {
1922 return test_plaintext(BREAK_NONE);
1923 }
1924
1925 static BOOL test_plaintext_lm_broken(void) {
1926 return test_plaintext(BREAK_LM);
1927 }
1928
1929 static BOOL test_plaintext_nt_broken(void) {
1930 return test_plaintext(BREAK_NT);
1931 }
1932
1933 static BOOL test_plaintext_nt_only(void) {
1934 return test_plaintext(NO_LM);
1935 }
1936
1937 static BOOL test_plaintext_lm_only(void) {
1938 return test_plaintext(NO_NT);
1939 }
1940
1941 /*
1942 Tests:
1943
1944 - LM only
1945 - NT and LM
1946 - NT
1947 - NT in LM field
1948 - NT in both fields
1949 - NTLMv2
1950 - NTLMv2 and LMv2
1951 - LMv2
1952 - plaintext tests (in challenge-response feilds)
1953
1954 check we get the correct session key in each case
1955 check what values we get for the LM session key
1956
1957 */
1958
1959 static const struct ntlm_tests {
1960 BOOL (*fn)(void);
1961 const char *name;
1962 } test_table[] = {
1963 {test_lm, "LM"},
1964 {test_lm_ntlm, "LM and NTLM"},
1965 {test_ntlm, "NTLM"},
1966 {test_ntlm_in_lm, "NTLM in LM"},
1967 {test_ntlm_in_both, "NTLM in both"},
1968 {test_ntlmv2, "NTLMv2"},
1969 {test_lmv2_ntlmv2, "NTLMv2 and LMv2"},
1970 {test_lmv2, "LMv2"},
1971 {test_ntlmv2_lmv2_broken, "NTLMv2 and LMv2, LMv2 broken"},
1972 {test_ntlmv2_ntlmv2_broken, "NTLMv2 and LMv2, NTLMv2 broken"},
1973 {test_ntlm_lm_broken, "NTLM and LM, LM broken"},
1974 {test_ntlm_ntlm_broken, "NTLM and LM, NTLM broken"},
1975 {test_plaintext_none_broken, "Plaintext"},
1976 {test_plaintext_lm_broken, "Plaintext LM broken"},
1977 {test_plaintext_nt_broken, "Plaintext NT broken"},
1978 {test_plaintext_nt_only, "Plaintext NT only"},
1979 {test_plaintext_lm_only, "Plaintext LM only"}
1980 };
1981
1982 static BOOL diagnose_ntlm_auth(void)
1983 {
1984 unsigned int i;
1985 BOOL pass = True;
1986
1987 for (i=0; test_table[i].fn; i++) {
1988 if (!test_table[i].fn()) {
1989 DEBUG(1, ("Test %s failed!\n", test_table[i].name));
1990 pass = False;
1991 }
1992 }
1993
1994 return pass;
1995 }
1996
1997 /* Main program */
1998
1999 enum {
2000 OPT_USERNAME = 1000,
2001 OPT_DOMAIN,
2002 OPT_WORKSTATION,
2003 OPT_CHALLENGE,
2004 OPT_RESPONSE,
2005 OPT_LM,
2006 OPT_NT,
2007 OPT_PASSWORD,
2008 OPT_LM_KEY,
2009 OPT_NT_KEY,
2010 OPT_DIAGNOSTICS
2011 };
2012
2013 int main(int argc, const char **argv)
2014 {
2015 int opt;
2016 static const char *helper_protocol;
2017 static int diagnostics;
2018
2019 static const char *hex_challenge;
2020 static const char *hex_lm_response;
2021 static const char *hex_nt_response;
2022 char *challenge;
2023 char *lm_response;
2024 char *nt_response;
2025 size_t challenge_len;
2026 size_t lm_response_len;
2027 size_t nt_response_len;
2028
2029 poptContext pc;
2030
2031 /* NOTE: DO NOT change this interface without considering the implications!
2032 This is an external interface, which other programs will use to interact
2033 with this helper.
2034 */
2035
2036 /* We do not use single-letter command abbreviations, because they harm future
2037 interface stability. */
2038
2039 struct poptOption long_options[] = {
2040 POPT_AUTOHELP
2041 { "helper-protocol", 0, POPT_ARG_STRING, &helper_protocol, OPT_DOMAIN, "operate as a stdio-based helper", "helper protocol to use"},
2042 { "username", 0, POPT_ARG_STRING, &opt_username, OPT_USERNAME, "username"},
2043 { "domain", 0, POPT_ARG_STRING, &opt_domain, OPT_DOMAIN, "domain name"},
2044 { "workstation", 0, POPT_ARG_STRING, &opt_workstation, OPT_WORKSTATION, "workstation"},
2045 { "challenge", 0, POPT_ARG_STRING, &hex_challenge, OPT_CHALLENGE, "challenge (HEX encoded)"},
2046 { "lm-response", 0, POPT_ARG_STRING, &hex_lm_response, OPT_LM, "LM Response to the challenge (HEX encoded)"},
2047 { "nt-response", 0, POPT_ARG_STRING, &hex_nt_response, OPT_NT, "NT or NTLMv2 Response to the challenge (HEX encoded)"},
2048 { "password", 0, POPT_ARG_STRING, &opt_password, OPT_PASSWORD, "User's plaintext password"},
2049 { "request-lm-key", 0, POPT_ARG_NONE, &request_lm_key, OPT_LM_KEY, "Retreive LM session key"},
2050 { "request-nt-key", 0, POPT_ARG_NONE, &request_nt_key, OPT_NT_KEY, "Retreive NT session key"},
2051 { "diagnostics", 0, POPT_ARG_NONE, &diagnostics, OPT_DIAGNOSTICS, "Perform diagnostics on the authentictaion chain"},
2052 POPT_COMMON_SAMBA
2053 POPT_TABLEEND
2054 };
2055
2056 /* Samba client initialisation */
2057
2058 dbf = x_stderr;
2059
2060 /* Samba client initialisation */
2061
2062 if (!lp_load(dyn_CONFIGFILE, True, False, False)) {
2063 d_fprintf(stderr, "wbinfo: error opening config file %s. Error was %s\n",
2064 dyn_CONFIGFILE, strerror(errno));
2065 exit(1);
2066 }
2067
2068 /* Parse options */
2069
2070 pc = poptGetContext("ntlm_auth", argc, argv, long_options, 0);
2071
2072 /* Parse command line options */
2073
2074 if (argc == 1) {
2075 poptPrintHelp(pc, stderr, 0);
2076 return 1;
2077 }
2078
2079 pc = poptGetContext(NULL, argc, (const char **)argv, long_options,
2080 POPT_CONTEXT_KEEP_FIRST);
2081
2082 while((opt = poptGetNextOpt(pc)) != -1) {
2083 switch (opt) {
2084 case OPT_CHALLENGE:
2085 challenge = smb_xmalloc((strlen(hex_challenge))/2+1);
2086 if ((challenge_len = strhex_to_str(challenge,
2087 strlen(hex_challenge),
2088 hex_challenge)) != 8) {
2089 x_fprintf(x_stderr, "hex decode of %s failed (only got %lu bytes)!\n",
2090 hex_challenge, (unsigned long)challenge_len);
2091 exit(1);
2092 }
2093 opt_challenge = data_blob(challenge, challenge_len);
2094 SAFE_FREE(challenge);
2095 break;
2096 case OPT_LM:
2097 lm_response = smb_xmalloc((strlen(hex_lm_response))/2+1);
2098 lm_response_len = strhex_to_str(lm_response,
2099 strlen(hex_lm_response),
2100 hex_lm_response);
2101 if (lm_response_len != 24) {
2102 x_fprintf(x_stderr, "hex decode of %s failed!\n", hex_lm_response);
2103 exit(1);
2104 }
2105 opt_lm_response = data_blob(lm_response, lm_response_len);
2106 SAFE_FREE(lm_response);
2107 break;
2108 case OPT_NT:
2109 nt_response = smb_xmalloc((strlen(hex_nt_response)+2)/2+1);
2110 nt_response_len = strhex_to_str(nt_response,
2111 strlen(hex_nt_response),
2112 hex_nt_response);
2113 if (nt_response_len < 24) {
2114 x_fprintf(x_stderr, "hex decode of %s failed!\n", hex_nt_response);
2115 exit(1);
2116 }
2117 opt_nt_response = data_blob(nt_response, nt_response_len);
2118 SAFE_FREE(nt_response);
2119 break;
2120 }
2121 }
2122
2123 if (helper_protocol) {
2124 int i;
2125 for (i=0; i<NUM_HELPER_MODES; i++) {
2126 if (strcmp(helper_protocol, stdio_helper_protocols[i].name) == 0) {
2127 squid_stream(stdio_helper_protocols[i].mode, stdio_helper_protocols[i].fn);
2128 exit(0);
2129 }
2130 }
2131 x_fprintf(x_stderr, "unknown helper protocol [%s]\n\nValid helper protools:\n\n", helper_protocol);
2132
2133 for (i=0; i<NUM_HELPER_MODES; i++) {
2134 x_fprintf(x_stderr, "%s\n", stdio_helper_protocols[i].name);
2135 }
2136
2137 exit(1);
2138 }
2139
2140 if (!opt_username) {
2141 x_fprintf(x_stderr, "username must be specified!\n\n");
2142 poptPrintHelp(pc, stderr, 0);
2143 exit(1);
2144 }
2145
2146 if (opt_domain == NULL) {
2147 opt_domain = get_winbind_domain();
2148 }
2149
2150 if (opt_workstation == NULL) {
2151 opt_workstation = "";
2152 }
2153
2154 if (opt_challenge.length) {
2155 if (!check_auth_crap()) {
2156 exit(1);
2157 }
2158 exit(0);
2159 }
2160
2161 if (!opt_password) {
2162 opt_password = getpass("password: ");
2163 }
2164
2165 if (diagnostics) {
2166 if (!diagnose_ntlm_auth()) {
2167 exit(1);
2168 }
2169 } else {
2170 fstring user;
2171
2172 fstr_sprintf(user, "%s%c%s", opt_domain, winbind_separator(), opt_username);
2173 if (!check_plaintext_auth(user, opt_password, True)) {
2174 exit(1);
2175 }
2176 }
2177
2178 /* Exit code */
2179
2180 poptFreeContext(pc);
2181 return 0;
2182 }