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ldb:ldb_pack.c - remove superflous "message->elements = NULL"
[Samba.git] / source3 / utils / ntlm_auth.c
blobf8145b4a6da461c5888422c0ccfe204bfda65d55
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 "popt_common.h"
28 #include "utils/ntlm_auth.h"
29 #include "../libcli/auth/libcli_auth.h"
30 #include "../libcli/auth/spnego.h"
31 #include "../libcli/auth/ntlmssp.h"
32 #include "smb_krb5.h"
33 #include <iniparser.h>
34 #include "../lib/crypto/arcfour.h"
35 #include "libads/kerberos_proto.h"
36 #include "nsswitch/winbind_client.h"
37 #include "librpc/gen_ndr/krb5pac.h"
38
39 #ifndef PAM_WINBIND_CONFIG_FILE
40 #define PAM_WINBIND_CONFIG_FILE "/etc/security/pam_winbind.conf"
41 #endif
42
43 #define WINBIND_KRB5_AUTH 0x00000080
44
45 #undef DBGC_CLASS
46 #define DBGC_CLASS DBGC_WINBIND
47
48 #define INITIAL_BUFFER_SIZE 300
49 #define MAX_BUFFER_SIZE 630000
50
51 enum stdio_helper_mode {
52 SQUID_2_4_BASIC,
53 SQUID_2_5_BASIC,
54 SQUID_2_5_NTLMSSP,
55 NTLMSSP_CLIENT_1,
56 GSS_SPNEGO,
57 GSS_SPNEGO_CLIENT,
58 NTLM_SERVER_1,
59 NTLM_CHANGE_PASSWORD_1,
60 NUM_HELPER_MODES
61 };
62
63 enum ntlm_auth_cli_state {
64 CLIENT_INITIAL = 0,
65 CLIENT_RESPONSE,
66 CLIENT_FINISHED,
67 CLIENT_ERROR
68 };
69
70 enum ntlm_auth_svr_state {
71 SERVER_INITIAL = 0,
72 SERVER_CHALLENGE,
73 SERVER_FINISHED,
74 SERVER_ERROR
75 };
76
77 struct ntlm_auth_state {
78 TALLOC_CTX *mem_ctx;
79 enum stdio_helper_mode helper_mode;
80 enum ntlm_auth_cli_state cli_state;
81 enum ntlm_auth_svr_state svr_state;
82 struct ntlmssp_state *ntlmssp_state;
83 uint32_t neg_flags;
84 char *want_feature_list;
85 bool have_session_key;
86 DATA_BLOB session_key;
87 DATA_BLOB initial_message;
88 };
89
90 typedef void (*stdio_helper_function)(struct ntlm_auth_state *state, char *buf,
91 int length);
92
93 static void manage_squid_basic_request (struct ntlm_auth_state *state,
94 char *buf, int length);
95
96 static void manage_squid_ntlmssp_request (struct ntlm_auth_state *state,
97 char *buf, int length);
98
99 static void manage_client_ntlmssp_request (struct ntlm_auth_state *state,
100 char *buf, int length);
101
102 static void manage_gss_spnego_request (struct ntlm_auth_state *state,
103 char *buf, int length);
104
105 static void manage_gss_spnego_client_request (struct ntlm_auth_state *state,
106 char *buf, int length);
107
108 static void manage_ntlm_server_1_request (struct ntlm_auth_state *state,
109 char *buf, int length);
110
111 static void manage_ntlm_change_password_1_request(struct ntlm_auth_state *state,
112 char *buf, int length);
113
114 static const struct {
115 enum stdio_helper_mode mode;
116 const char *name;
117 stdio_helper_function fn;
118 } stdio_helper_protocols[] = {
119 { SQUID_2_4_BASIC, "squid-2.4-basic", manage_squid_basic_request},
120 { SQUID_2_5_BASIC, "squid-2.5-basic", manage_squid_basic_request},
121 { SQUID_2_5_NTLMSSP, "squid-2.5-ntlmssp", manage_squid_ntlmssp_request},
122 { NTLMSSP_CLIENT_1, "ntlmssp-client-1", manage_client_ntlmssp_request},
123 { GSS_SPNEGO, "gss-spnego", manage_gss_spnego_request},
124 { GSS_SPNEGO_CLIENT, "gss-spnego-client", manage_gss_spnego_client_request},
125 { NTLM_SERVER_1, "ntlm-server-1", manage_ntlm_server_1_request},
126 { NTLM_CHANGE_PASSWORD_1, "ntlm-change-password-1", manage_ntlm_change_password_1_request},
127 { NUM_HELPER_MODES, NULL, NULL}
128 };
129
130 const char *opt_username;
131 const char *opt_domain;
132 const char *opt_workstation;
133 const char *opt_password;
134 static DATA_BLOB opt_challenge;
135 static DATA_BLOB opt_lm_response;
136 static DATA_BLOB opt_nt_response;
137 static int request_lm_key;
138 static int request_user_session_key;
139 static int use_cached_creds;
140
141 static const char *require_membership_of;
142 static const char *require_membership_of_sid;
143 static const char *opt_pam_winbind_conf;
144
145 static char winbind_separator(void)
146 {
147 struct winbindd_response response;
148 static bool got_sep;
149 static char sep;
150
151 if (got_sep)
152 return sep;
153
154 ZERO_STRUCT(response);
155
156 /* Send off request */
157
158 if (winbindd_request_response(WINBINDD_INFO, NULL, &response) !=
159 NSS_STATUS_SUCCESS) {
160 d_printf("could not obtain winbind separator!\n");
161 return *lp_winbind_separator();
162 }
163
164 sep = response.data.info.winbind_separator;
165 got_sep = True;
166
167 if (!sep) {
168 d_printf("winbind separator was NULL!\n");
169 return *lp_winbind_separator();
170 }
171
172 return sep;
173 }
174
175 const char *get_winbind_domain(void)
176 {
177 struct winbindd_response response;
178
179 static fstring winbind_domain;
180 if (*winbind_domain) {
181 return winbind_domain;
182 }
183
184 ZERO_STRUCT(response);
185
186 /* Send off request */
187
188 if (winbindd_request_response(WINBINDD_DOMAIN_NAME, NULL, &response) !=
189 NSS_STATUS_SUCCESS) {
190 DEBUG(0, ("could not obtain winbind domain name!\n"));
191 return lp_workgroup();
192 }
193
194 fstrcpy(winbind_domain, response.data.domain_name);
195
196 return winbind_domain;
197
198 }
199
200 const char *get_winbind_netbios_name(void)
201 {
202 struct winbindd_response response;
203
204 static fstring winbind_netbios_name;
205
206 if (*winbind_netbios_name) {
207 return winbind_netbios_name;
208 }
209
210 ZERO_STRUCT(response);
211
212 /* Send off request */
213
214 if (winbindd_request_response(WINBINDD_NETBIOS_NAME, NULL, &response) !=
215 NSS_STATUS_SUCCESS) {
216 DEBUG(0, ("could not obtain winbind netbios name!\n"));
217 return global_myname();
218 }
219
220 fstrcpy(winbind_netbios_name, response.data.netbios_name);
221
222 return winbind_netbios_name;
223
224 }
225
226 DATA_BLOB get_challenge(void)
227 {
228 static DATA_BLOB chal;
229 if (opt_challenge.length)
230 return opt_challenge;
231
232 chal = data_blob(NULL, 8);
233
234 generate_random_buffer(chal.data, chal.length);
235 return chal;
236 }
237
238 /* Copy of parse_domain_user from winbindd_util.c. Parse a string of the
239 form DOMAIN/user into a domain and a user */
240
241 static bool parse_ntlm_auth_domain_user(const char *domuser, fstring domain,
242 fstring user)
243 {
244
245 char *p = strchr(domuser,winbind_separator());
246
247 if (!p) {
248 return False;
249 }
250
251 fstrcpy(user, p+1);
252 fstrcpy(domain, domuser);
253 domain[PTR_DIFF(p, domuser)] = 0;
254 strupper_m(domain);
255
256 return True;
257 }
258
259 static bool get_require_membership_sid(void) {
260 struct winbindd_request request;
261 struct winbindd_response response;
262
263 if (!require_membership_of) {
264 return True;
265 }
266
267 if (require_membership_of_sid) {
268 return True;
269 }
270
271 /* Otherwise, ask winbindd for the name->sid request */
272
273 ZERO_STRUCT(request);
274 ZERO_STRUCT(response);
275
276 if (!parse_ntlm_auth_domain_user(require_membership_of,
277 request.data.name.dom_name,
278 request.data.name.name)) {
279 DEBUG(0, ("Could not parse %s into seperate domain/name parts!\n",
280 require_membership_of));
281 return False;
282 }
283
284 if (winbindd_request_response(WINBINDD_LOOKUPNAME, &request, &response) !=
285 NSS_STATUS_SUCCESS) {
286 DEBUG(0, ("Winbindd lookupname failed to resolve %s into a SID!\n",
287 require_membership_of));
288 return False;
289 }
290
291 require_membership_of_sid = SMB_STRDUP(response.data.sid.sid);
292
293 if (require_membership_of_sid)
294 return True;
295
296 return False;
297 }
298
299 /*
300 * Get some configuration from pam_winbind.conf to see if we
301 * need to contact trusted domain
302 */
303
304 int get_pam_winbind_config()
305 {
306 int ctrl = 0;
307 dictionary *d = NULL;
308
309 if (!opt_pam_winbind_conf || !*opt_pam_winbind_conf) {
310 opt_pam_winbind_conf = PAM_WINBIND_CONFIG_FILE;
311 }
312
313 d = iniparser_load(CONST_DISCARD(char *, opt_pam_winbind_conf));
314
315 if (!d) {
316 return 0;
317 }
318
319 if (iniparser_getboolean(d, CONST_DISCARD(char *, "global:krb5_auth"), false)) {
320 ctrl |= WINBIND_KRB5_AUTH;
321 }
322
323 iniparser_freedict(d);
324
325 return ctrl;
326 }
327
328 /* Authenticate a user with a plaintext password */
329
330 static bool check_plaintext_auth(const char *user, const char *pass,
331 bool stdout_diagnostics)
332 {
333 struct winbindd_request request;
334 struct winbindd_response response;
335 NSS_STATUS result;
336
337 if (!get_require_membership_sid()) {
338 return False;
339 }
340
341 /* Send off request */
342
343 ZERO_STRUCT(request);
344 ZERO_STRUCT(response);
345
346 fstrcpy(request.data.auth.user, user);
347 fstrcpy(request.data.auth.pass, pass);
348 if (require_membership_of_sid) {
349 strlcpy(request.data.auth.require_membership_of_sid,
350 require_membership_of_sid,
351 sizeof(request.data.auth.require_membership_of_sid));
352 }
353
354 result = winbindd_request_response(WINBINDD_PAM_AUTH, &request, &response);
355
356 /* Display response */
357
358 if (stdout_diagnostics) {
359 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
360 d_printf("Reading winbind reply failed! (0x01)\n");
361 }
362
363 d_printf("%s: %s (0x%x)\n",
364 response.data.auth.nt_status_string,
365 response.data.auth.error_string,
366 response.data.auth.nt_status);
367 } else {
368 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
369 DEBUG(1, ("Reading winbind reply failed! (0x01)\n"));
370 }
371
372 DEBUG(3, ("%s: %s (0x%x)\n",
373 response.data.auth.nt_status_string,
374 response.data.auth.error_string,
375 response.data.auth.nt_status));
376 }
377
378 return (result == NSS_STATUS_SUCCESS);
379 }
380
381 /* authenticate a user with an encrypted username/password */
382
383 NTSTATUS contact_winbind_auth_crap(const char *username,
384 const char *domain,
385 const char *workstation,
386 const DATA_BLOB *challenge,
387 const DATA_BLOB *lm_response,
388 const DATA_BLOB *nt_response,
389 uint32 flags,
390 uint8 lm_key[8],
391 uint8 user_session_key[16],
392 char **error_string,
393 char **unix_name)
394 {
395 NTSTATUS nt_status;
396 NSS_STATUS result;
397 struct winbindd_request request;
398 struct winbindd_response response;
399
400 if (!get_require_membership_sid()) {
401 return NT_STATUS_INVALID_PARAMETER;
402 }
403
404 ZERO_STRUCT(request);
405 ZERO_STRUCT(response);
406
407 request.flags = flags;
408
409 request.data.auth_crap.logon_parameters = MSV1_0_ALLOW_WORKSTATION_TRUST_ACCOUNT | MSV1_0_ALLOW_SERVER_TRUST_ACCOUNT;
410
411 if (require_membership_of_sid)
412 fstrcpy(request.data.auth_crap.require_membership_of_sid, require_membership_of_sid);
413
414 fstrcpy(request.data.auth_crap.user, username);
415 fstrcpy(request.data.auth_crap.domain, domain);
416
417 fstrcpy(request.data.auth_crap.workstation,
418 workstation);
419
420 memcpy(request.data.auth_crap.chal, challenge->data, MIN(challenge->length, 8));
421
422 if (lm_response && lm_response->length) {
423 memcpy(request.data.auth_crap.lm_resp,
424 lm_response->data,
425 MIN(lm_response->length, sizeof(request.data.auth_crap.lm_resp)));
426 request.data.auth_crap.lm_resp_len = lm_response->length;
427 }
428
429 if (nt_response && nt_response->length) {
430 if (nt_response->length > sizeof(request.data.auth_crap.nt_resp)) {
431 request.flags = request.flags | WBFLAG_BIG_NTLMV2_BLOB;
432 request.extra_len = nt_response->length;
433 request.extra_data.data = SMB_MALLOC_ARRAY(char, request.extra_len);
434 if (request.extra_data.data == NULL) {
435 return NT_STATUS_NO_MEMORY;
436 }
437 memcpy(request.extra_data.data, nt_response->data,
438 nt_response->length);
439
440 } else {
441 memcpy(request.data.auth_crap.nt_resp,
442 nt_response->data, nt_response->length);
443 }
444 request.data.auth_crap.nt_resp_len = nt_response->length;
445 }
446
447 result = winbindd_request_response(WINBINDD_PAM_AUTH_CRAP, &request, &response);
448 SAFE_FREE(request.extra_data.data);
449
450 /* Display response */
451
452 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
453 nt_status = NT_STATUS_UNSUCCESSFUL;
454 if (error_string)
455 *error_string = smb_xstrdup("Reading winbind reply failed!");
456 winbindd_free_response(&response);
457 return nt_status;
458 }
459
460 nt_status = (NT_STATUS(response.data.auth.nt_status));
461 if (!NT_STATUS_IS_OK(nt_status)) {
462 if (error_string)
463 *error_string = smb_xstrdup(response.data.auth.error_string);
464 winbindd_free_response(&response);
465 return nt_status;
466 }
467
468 if ((flags & WBFLAG_PAM_LMKEY) && lm_key) {
469 memcpy(lm_key, response.data.auth.first_8_lm_hash,
470 sizeof(response.data.auth.first_8_lm_hash));
471 }
472 if ((flags & WBFLAG_PAM_USER_SESSION_KEY) && user_session_key) {
473 memcpy(user_session_key, response.data.auth.user_session_key,
474 sizeof(response.data.auth.user_session_key));
475 }
476
477 if (flags & WBFLAG_PAM_UNIX_NAME) {
478 *unix_name = SMB_STRDUP(response.data.auth.unix_username);
479 if (!*unix_name) {
480 winbindd_free_response(&response);
481 return NT_STATUS_NO_MEMORY;
482 }
483 }
484
485 winbindd_free_response(&response);
486 return nt_status;
487 }
488
489 /* contact server to change user password using auth crap */
490 static NTSTATUS contact_winbind_change_pswd_auth_crap(const char *username,
491 const char *domain,
492 const DATA_BLOB new_nt_pswd,
493 const DATA_BLOB old_nt_hash_enc,
494 const DATA_BLOB new_lm_pswd,
495 const DATA_BLOB old_lm_hash_enc,
496 char **error_string)
497 {
498 NTSTATUS nt_status;
499 NSS_STATUS result;
500 struct winbindd_request request;
501 struct winbindd_response response;
502
503 if (!get_require_membership_sid())
504 {
505 if(error_string)
506 *error_string = smb_xstrdup("Can't get membership sid.");
507 return NT_STATUS_INVALID_PARAMETER;
508 }
509
510 ZERO_STRUCT(request);
511 ZERO_STRUCT(response);
512
513 if(username != NULL)
514 fstrcpy(request.data.chng_pswd_auth_crap.user, username);
515 if(domain != NULL)
516 fstrcpy(request.data.chng_pswd_auth_crap.domain,domain);
517
518 if(new_nt_pswd.length)
519 {
520 memcpy(request.data.chng_pswd_auth_crap.new_nt_pswd, new_nt_pswd.data, sizeof(request.data.chng_pswd_auth_crap.new_nt_pswd));
521 request.data.chng_pswd_auth_crap.new_nt_pswd_len = new_nt_pswd.length;
522 }
523
524 if(old_nt_hash_enc.length)
525 {
526 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));
527 request.data.chng_pswd_auth_crap.old_nt_hash_enc_len = old_nt_hash_enc.length;
528 }
529
530 if(new_lm_pswd.length)
531 {
532 memcpy(request.data.chng_pswd_auth_crap.new_lm_pswd, new_lm_pswd.data, sizeof(request.data.chng_pswd_auth_crap.new_lm_pswd));
533 request.data.chng_pswd_auth_crap.new_lm_pswd_len = new_lm_pswd.length;
534 }
535
536 if(old_lm_hash_enc.length)
537 {
538 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));
539 request.data.chng_pswd_auth_crap.old_lm_hash_enc_len = old_lm_hash_enc.length;
540 }
541
542 result = winbindd_request_response(WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP, &request, &response);
543
544 /* Display response */
545
546 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0))
547 {
548 nt_status = NT_STATUS_UNSUCCESSFUL;
549 if (error_string)
550 *error_string = smb_xstrdup("Reading winbind reply failed!");
551 winbindd_free_response(&response);
552 return nt_status;
553 }
554
555 nt_status = (NT_STATUS(response.data.auth.nt_status));
556 if (!NT_STATUS_IS_OK(nt_status))
557 {
558 if (error_string)
559 *error_string = smb_xstrdup(response.data.auth.error_string);
560 winbindd_free_response(&response);
561 return nt_status;
562 }
563
564 winbindd_free_response(&response);
565
566 return nt_status;
567 }
568
569 static NTSTATUS winbind_pw_check(struct ntlmssp_state *ntlmssp_state, TALLOC_CTX *mem_ctx,
570 DATA_BLOB *user_session_key, DATA_BLOB *lm_session_key)
571 {
572 static const char zeros[16] = { 0, };
573 NTSTATUS nt_status;
574 char *error_string = NULL;
575 uint8 lm_key[8];
576 uint8 user_sess_key[16];
577 char *unix_name = NULL;
578
579 nt_status = contact_winbind_auth_crap(ntlmssp_state->user, ntlmssp_state->domain,
580 ntlmssp_state->client.netbios_name,
581 &ntlmssp_state->chal,
582 &ntlmssp_state->lm_resp,
583 &ntlmssp_state->nt_resp,
584 WBFLAG_PAM_LMKEY | WBFLAG_PAM_USER_SESSION_KEY | WBFLAG_PAM_UNIX_NAME,
585 lm_key, user_sess_key,
586 &error_string, &unix_name);
587
588 if (NT_STATUS_IS_OK(nt_status)) {
589 if (memcmp(lm_key, zeros, 8) != 0) {
590 *lm_session_key = data_blob_talloc(mem_ctx, NULL, 16);
591 memcpy(lm_session_key->data, lm_key, 8);
592 memset(lm_session_key->data+8, '\0', 8);
593 }
594
595 if (memcmp(user_sess_key, zeros, 16) != 0) {
596 *user_session_key = data_blob_talloc(mem_ctx, user_sess_key, 16);
597 }
598 ntlmssp_state->callback_private = talloc_strdup(ntlmssp_state,
599 unix_name);
600 } else {
601 DEBUG(NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED) ? 0 : 3,
602 ("Login for user [%s]\\[%s]@[%s] failed due to [%s]\n",
603 ntlmssp_state->domain, ntlmssp_state->user,
604 ntlmssp_state->client.netbios_name,
605 error_string ? error_string : "unknown error (NULL)"));
606 ntlmssp_state->callback_private = NULL;
607 }
608
609 SAFE_FREE(error_string);
610 SAFE_FREE(unix_name);
611 return nt_status;
612 }
613
614 static NTSTATUS local_pw_check(struct ntlmssp_state *ntlmssp_state, TALLOC_CTX *mem_ctx,
615 DATA_BLOB *user_session_key, DATA_BLOB *lm_session_key)
616 {
617 NTSTATUS nt_status;
618 struct samr_Password lm_pw, nt_pw;
619
620 nt_lm_owf_gen (opt_password, nt_pw.hash, lm_pw.hash);
621
622 nt_status = ntlm_password_check(mem_ctx,
623 true, true, 0,
624 &ntlmssp_state->chal,
625 &ntlmssp_state->lm_resp,
626 &ntlmssp_state->nt_resp,
627 ntlmssp_state->user,
628 ntlmssp_state->user,
629 ntlmssp_state->domain,
630 &lm_pw, &nt_pw, user_session_key, lm_session_key);
631
632 if (NT_STATUS_IS_OK(nt_status)) {
633 ntlmssp_state->callback_private = talloc_asprintf(ntlmssp_state,
634 "%s%c%s", ntlmssp_state->domain,
635 *lp_winbind_separator(),
636 ntlmssp_state->user);
637 } else {
638 DEBUG(3, ("Login for user [%s]\\[%s]@[%s] failed due to [%s]\n",
639 ntlmssp_state->domain, ntlmssp_state->user,
640 ntlmssp_state->client.netbios_name,
641 nt_errstr(nt_status)));
642 ntlmssp_state->callback_private = NULL;
643 }
644 return nt_status;
645 }
646
647 static NTSTATUS ntlm_auth_start_ntlmssp_client(struct ntlmssp_state **client_ntlmssp_state)
648 {
649 NTSTATUS status;
650 if ( (opt_username == NULL) || (opt_domain == NULL) ) {
651 status = NT_STATUS_UNSUCCESSFUL;
652 DEBUG(1, ("Need username and domain for NTLMSSP\n"));
653 return NT_STATUS_INVALID_PARAMETER;
654 }
655
656 status = ntlmssp_client_start(NULL,
657 global_myname(),
658 lp_workgroup(),
659 lp_client_ntlmv2_auth(),
660 client_ntlmssp_state);
661
662 if (!NT_STATUS_IS_OK(status)) {
663 DEBUG(1, ("Could not start NTLMSSP client: %s\n",
664 nt_errstr(status)));
665 TALLOC_FREE(*client_ntlmssp_state);
666 return status;
667 }
668
669 status = ntlmssp_set_username(*client_ntlmssp_state, opt_username);
670
671 if (!NT_STATUS_IS_OK(status)) {
672 DEBUG(1, ("Could not set username: %s\n",
673 nt_errstr(status)));
674 TALLOC_FREE(*client_ntlmssp_state);
675 return status;
676 }
677
678 status = ntlmssp_set_domain(*client_ntlmssp_state, opt_domain);
679
680 if (!NT_STATUS_IS_OK(status)) {
681 DEBUG(1, ("Could not set domain: %s\n",
682 nt_errstr(status)));
683 TALLOC_FREE(*client_ntlmssp_state);
684 return status;
685 }
686
687 if (opt_password) {
688 status = ntlmssp_set_password(*client_ntlmssp_state, opt_password);
689
690 if (!NT_STATUS_IS_OK(status)) {
691 DEBUG(1, ("Could not set password: %s\n",
692 nt_errstr(status)));
693 TALLOC_FREE(*client_ntlmssp_state);
694 return status;
695 }
696 }
697
698 return NT_STATUS_OK;
699 }
700
701 static NTSTATUS ntlm_auth_start_ntlmssp_server(struct ntlmssp_state **ntlmssp_state)
702 {
703 NTSTATUS status;
704 const char *netbios_name;
705 const char *netbios_domain;
706 const char *dns_name;
707 char *dns_domain;
708 bool is_standalone = false;
709
710 if (opt_password) {
711 netbios_name = global_myname();
712 netbios_domain = lp_workgroup();
713 } else {
714 netbios_name = get_winbind_netbios_name();
715 netbios_domain = get_winbind_domain();
716 }
717 /* This should be a 'netbios domain -> DNS domain' mapping */
718 dns_domain = get_mydnsdomname(talloc_tos());
719 if (dns_domain) {
720 strlower_m(dns_domain);
721 }
722 dns_name = get_mydnsfullname();
723
724 status = ntlmssp_server_start(NULL,
725 is_standalone,
726 netbios_name,
727 netbios_domain,
728 dns_name,
729 dns_domain,
730 ntlmssp_state);
731 if (!NT_STATUS_IS_OK(status)) {
732 DEBUG(1, ("Could not start NTLMSSP server: %s\n",
733 nt_errstr(status)));
734 return status;
735 }
736
737 /* Have we been given a local password, or should we ask winbind? */
738 if (opt_password) {
739 (*ntlmssp_state)->check_password = local_pw_check;
740 } else {
741 (*ntlmssp_state)->check_password = winbind_pw_check;
742 }
743 return NT_STATUS_OK;
744 }
745
746 /*******************************************************************
747 Used by firefox to drive NTLM auth to IIS servers.
748 *******************************************************************/
749
750 static NTSTATUS do_ccache_ntlm_auth(DATA_BLOB initial_msg, DATA_BLOB challenge_msg,
751 DATA_BLOB *reply)
752 {
753 struct winbindd_request wb_request;
754 struct winbindd_response wb_response;
755 int ctrl = 0;
756 NSS_STATUS result;
757
758 /* get winbindd to do the ntlmssp step on our behalf */
759 ZERO_STRUCT(wb_request);
760 ZERO_STRUCT(wb_response);
761
762 /*
763 * This is tricky here. If we set krb5_auth in pam_winbind.conf
764 * creds for users in trusted domain will be stored the winbindd
765 * child of the trusted domain. If we ask the primary domain for
766 * ntlm_ccache_auth, it will fail. So, we have to ask the trusted
767 * domain's child for ccache_ntlm_auth. that is to say, we have to
768 * set WBFLAG_PAM_CONTACT_TRUSTDOM in request.flags.
769 */
770 ctrl = get_pam_winbind_config();
771
772 if (ctrl | WINBIND_KRB5_AUTH) {
773 wb_request.flags |= WBFLAG_PAM_CONTACT_TRUSTDOM;
774 }
775
776 fstr_sprintf(wb_request.data.ccache_ntlm_auth.user,
777 "%s%c%s", opt_domain, winbind_separator(), opt_username);
778 wb_request.data.ccache_ntlm_auth.uid = geteuid();
779 wb_request.data.ccache_ntlm_auth.initial_blob_len = initial_msg.length;
780 wb_request.data.ccache_ntlm_auth.challenge_blob_len = challenge_msg.length;
781 wb_request.extra_len = initial_msg.length + challenge_msg.length;
782
783 if (wb_request.extra_len > 0) {
784 wb_request.extra_data.data = SMB_MALLOC_ARRAY(char, wb_request.extra_len);
785 if (wb_request.extra_data.data == NULL) {
786 return NT_STATUS_NO_MEMORY;
787 }
788
789 memcpy(wb_request.extra_data.data, initial_msg.data, initial_msg.length);
790 memcpy(wb_request.extra_data.data + initial_msg.length,
791 challenge_msg.data, challenge_msg.length);
792 }
793
794 result = winbindd_request_response(WINBINDD_CCACHE_NTLMAUTH, &wb_request, &wb_response);
795 SAFE_FREE(wb_request.extra_data.data);
796
797 if (result != NSS_STATUS_SUCCESS) {
798 winbindd_free_response(&wb_response);
799 return NT_STATUS_UNSUCCESSFUL;
800 }
801
802 if (reply) {
803 *reply = data_blob(wb_response.extra_data.data,
804 wb_response.data.ccache_ntlm_auth.auth_blob_len);
805 if (wb_response.data.ccache_ntlm_auth.auth_blob_len > 0 &&
806 reply->data == NULL) {
807 winbindd_free_response(&wb_response);
808 return NT_STATUS_NO_MEMORY;
809 }
810 }
811
812 winbindd_free_response(&wb_response);
813 return NT_STATUS_MORE_PROCESSING_REQUIRED;
814 }
815
816 static void manage_squid_ntlmssp_request_int(struct ntlm_auth_state *state,
817 char *buf, int length,
818 TALLOC_CTX *mem_ctx,
819 char **response)
820 {
821 DATA_BLOB request, reply;
822 NTSTATUS nt_status;
823
824 if (strlen(buf) < 2) {
825 DEBUG(1, ("NTLMSSP query [%s] invalid\n", buf));
826 *response = talloc_strdup(mem_ctx, "BH NTLMSSP query invalid");
827 return;
828 }
829
830 if (strlen(buf) > 3) {
831 if(strncmp(buf, "SF ", 3) == 0){
832 DEBUG(10, ("Setting flags to negotioate\n"));
833 TALLOC_FREE(state->want_feature_list);
834 state->want_feature_list = talloc_strdup(state->mem_ctx,
835 buf+3);
836 *response = talloc_strdup(mem_ctx, "OK");
837 return;
838 }
839 request = base64_decode_data_blob(buf + 3);
840 } else {
841 request = data_blob_null;
842 }
843
844 if ((strncmp(buf, "PW ", 3) == 0)) {
845 /* The calling application wants us to use a local password
846 * (rather than winbindd) */
847
848 opt_password = SMB_STRNDUP((const char *)request.data,
849 request.length);
850
851 if (opt_password == NULL) {
852 DEBUG(1, ("Out of memory\n"));
853 *response = talloc_strdup(mem_ctx, "BH Out of memory");
854 data_blob_free(&request);
855 return;
856 }
857
858 *response = talloc_strdup(mem_ctx, "OK");
859 data_blob_free(&request);
860 return;
861 }
862
863 if (strncmp(buf, "YR", 2) == 0) {
864 TALLOC_FREE(state->ntlmssp_state);
865 state->svr_state = SERVER_INITIAL;
866 } else if (strncmp(buf, "KK", 2) == 0) {
867 /* No special preprocessing required */
868 } else if (strncmp(buf, "GF", 2) == 0) {
869 DEBUG(10, ("Requested negotiated NTLMSSP flags\n"));
870
871 if (state->svr_state == SERVER_FINISHED) {
872 *response = talloc_asprintf(mem_ctx, "GF 0x%08x",
873 state->neg_flags);
874 }
875 else {
876 *response = talloc_strdup(mem_ctx, "BH\n");
877 }
878 data_blob_free(&request);
879 return;
880 } else if (strncmp(buf, "GK", 2) == 0) {
881 DEBUG(10, ("Requested NTLMSSP session key\n"));
882 if(state->have_session_key) {
883 char *key64 = base64_encode_data_blob(state->mem_ctx,
884 state->session_key);
885 *response = talloc_asprintf(mem_ctx, "GK %s",
886 key64 ? key64 : "<NULL>");
887 TALLOC_FREE(key64);
888 } else {
889 *response = talloc_strdup(mem_ctx, "BH");
890 }
891
892 data_blob_free(&request);
893 return;
894 } else {
895 DEBUG(1, ("NTLMSSP query [%s] invalid\n", buf));
896 *response = talloc_strdup(mem_ctx, "BH NTLMSSP query invalid");
897 return;
898 }
899
900 if (!state->ntlmssp_state) {
901 nt_status = ntlm_auth_start_ntlmssp_server(
902 &state->ntlmssp_state);
903 if (!NT_STATUS_IS_OK(nt_status)) {
904 *response = talloc_asprintf(
905 mem_ctx, "BH %s", nt_errstr(nt_status));
906 return;
907 }
908 ntlmssp_want_feature_list(state->ntlmssp_state,
909 state->want_feature_list);
910 }
911
912 DEBUG(10, ("got NTLMSSP packet:\n"));
913 dump_data(10, request.data, request.length);
914
915 nt_status = ntlmssp_update(state->ntlmssp_state, request, &reply);
916
917 if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
918 char *reply_base64 = base64_encode_data_blob(state->mem_ctx,
919 reply);
920 *response = talloc_asprintf(mem_ctx, "TT %s", reply_base64);
921 TALLOC_FREE(reply_base64);
922 data_blob_free(&reply);
923 state->svr_state = SERVER_CHALLENGE;
924 DEBUG(10, ("NTLMSSP challenge\n"));
925 } else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED)) {
926 *response = talloc_asprintf(mem_ctx, "BH %s",
927 nt_errstr(nt_status));
928 DEBUG(0, ("NTLMSSP BH: %s\n", nt_errstr(nt_status)));
929
930 TALLOC_FREE(state->ntlmssp_state);
931 } else if (!NT_STATUS_IS_OK(nt_status)) {
932 *response = talloc_asprintf(mem_ctx, "NA %s",
933 nt_errstr(nt_status));
934 DEBUG(10, ("NTLMSSP %s\n", nt_errstr(nt_status)));
935 } else {
936 *response = talloc_asprintf(
937 mem_ctx, "AF %s",
938 (char *)state->ntlmssp_state->callback_private);
939 DEBUG(10, ("NTLMSSP OK!\n"));
940
941 if(state->have_session_key)
942 data_blob_free(&state->session_key);
943 state->session_key = data_blob(
944 state->ntlmssp_state->session_key.data,
945 state->ntlmssp_state->session_key.length);
946 state->neg_flags = state->ntlmssp_state->neg_flags;
947 state->have_session_key = true;
948 state->svr_state = SERVER_FINISHED;
949 }
950
951 data_blob_free(&request);
952 }
953
954 static void manage_squid_ntlmssp_request(struct ntlm_auth_state *state,
955 char *buf, int length)
956 {
957 char *response;
958
959 manage_squid_ntlmssp_request_int(state, buf, length,
960 talloc_tos(), &response);
961
962 if (response == NULL) {
963 x_fprintf(x_stdout, "BH Out of memory\n");
964 return;
965 }
966 x_fprintf(x_stdout, "%s\n", response);
967 TALLOC_FREE(response);
968 }
969
970 static void manage_client_ntlmssp_request(struct ntlm_auth_state *state,
971 char *buf, int length)
972 {
973 DATA_BLOB request, reply;
974 NTSTATUS nt_status;
975
976 if (!opt_username || !*opt_username) {
977 x_fprintf(x_stderr, "username must be specified!\n\n");
978 exit(1);
979 }
980
981 if (strlen(buf) < 2) {
982 DEBUG(1, ("NTLMSSP query [%s] invalid\n", buf));
983 x_fprintf(x_stdout, "BH NTLMSSP query invalid\n");
984 return;
985 }
986
987 if (strlen(buf) > 3) {
988 if(strncmp(buf, "SF ", 3) == 0) {
989 DEBUG(10, ("Looking for flags to negotiate\n"));
990 talloc_free(state->want_feature_list);
991 state->want_feature_list = talloc_strdup(state->mem_ctx,
992 buf+3);
993 x_fprintf(x_stdout, "OK\n");
994 return;
995 }
996 request = base64_decode_data_blob(buf + 3);
997 } else {
998 request = data_blob_null;
999 }
1000
1001 if (strncmp(buf, "PW ", 3) == 0) {
1002 /* We asked for a password and obviously got it :-) */
1003
1004 opt_password = SMB_STRNDUP((const char *)request.data,
1005 request.length);
1006
1007 if (opt_password == NULL) {
1008 DEBUG(1, ("Out of memory\n"));
1009 x_fprintf(x_stdout, "BH Out of memory\n");
1010 data_blob_free(&request);
1011 return;
1012 }
1013
1014 x_fprintf(x_stdout, "OK\n");
1015 data_blob_free(&request);
1016 return;
1017 }
1018
1019 if (!state->ntlmssp_state && use_cached_creds) {
1020 /* check whether cached credentials are usable. */
1021 DATA_BLOB empty_blob = data_blob_null;
1022
1023 nt_status = do_ccache_ntlm_auth(empty_blob, empty_blob, NULL);
1024 if (!NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1025 /* failed to use cached creds */
1026 use_cached_creds = False;
1027 }
1028 }
1029
1030 if (opt_password == NULL && !use_cached_creds) {
1031 /* Request a password from the calling process. After
1032 sending it, the calling process should retry asking for the
1033 negotiate. */
1034
1035 DEBUG(10, ("Requesting password\n"));
1036 x_fprintf(x_stdout, "PW\n");
1037 return;
1038 }
1039
1040 if (strncmp(buf, "YR", 2) == 0) {
1041 TALLOC_FREE(state->ntlmssp_state);
1042 state->cli_state = CLIENT_INITIAL;
1043 } else if (strncmp(buf, "TT", 2) == 0) {
1044 /* No special preprocessing required */
1045 } else if (strncmp(buf, "GF", 2) == 0) {
1046 DEBUG(10, ("Requested negotiated NTLMSSP flags\n"));
1047
1048 if(state->cli_state == CLIENT_FINISHED) {
1049 x_fprintf(x_stdout, "GF 0x%08x\n", state->neg_flags);
1050 }
1051 else {
1052 x_fprintf(x_stdout, "BH\n");
1053 }
1054
1055 data_blob_free(&request);
1056 return;
1057 } else if (strncmp(buf, "GK", 2) == 0 ) {
1058 DEBUG(10, ("Requested session key\n"));
1059
1060 if(state->cli_state == CLIENT_FINISHED) {
1061 char *key64 = base64_encode_data_blob(state->mem_ctx,
1062 state->session_key);
1063 x_fprintf(x_stdout, "GK %s\n", key64?key64:"<NULL>");
1064 TALLOC_FREE(key64);
1065 }
1066 else {
1067 x_fprintf(x_stdout, "BH\n");
1068 }
1069
1070 data_blob_free(&request);
1071 return;
1072 } else {
1073 DEBUG(1, ("NTLMSSP query [%s] invalid\n", buf));
1074 x_fprintf(x_stdout, "BH NTLMSSP query invalid\n");
1075 return;
1076 }
1077
1078 if (!state->ntlmssp_state) {
1079 nt_status = ntlm_auth_start_ntlmssp_client(
1080 &state->ntlmssp_state);
1081 if (!NT_STATUS_IS_OK(nt_status)) {
1082 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
1083 return;
1084 }
1085 ntlmssp_want_feature_list(state->ntlmssp_state,
1086 state->want_feature_list);
1087 state->initial_message = data_blob_null;
1088 }
1089
1090 DEBUG(10, ("got NTLMSSP packet:\n"));
1091 dump_data(10, request.data, request.length);
1092
1093 if (use_cached_creds && !opt_password &&
1094 (state->cli_state == CLIENT_RESPONSE)) {
1095 nt_status = do_ccache_ntlm_auth(state->initial_message, request,
1096 &reply);
1097 } else {
1098 nt_status = ntlmssp_update(state->ntlmssp_state, request,
1099 &reply);
1100 }
1101
1102 if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1103 char *reply_base64 = base64_encode_data_blob(state->mem_ctx,
1104 reply);
1105 if (state->cli_state == CLIENT_INITIAL) {
1106 x_fprintf(x_stdout, "YR %s\n", reply_base64);
1107 state->initial_message = reply;
1108 state->cli_state = CLIENT_RESPONSE;
1109 } else {
1110 x_fprintf(x_stdout, "KK %s\n", reply_base64);
1111 data_blob_free(&reply);
1112 }
1113 TALLOC_FREE(reply_base64);
1114 DEBUG(10, ("NTLMSSP challenge\n"));
1115 } else if (NT_STATUS_IS_OK(nt_status)) {
1116 char *reply_base64 = base64_encode_data_blob(talloc_tos(),
1117 reply);
1118 x_fprintf(x_stdout, "AF %s\n", reply_base64);
1119 TALLOC_FREE(reply_base64);
1120
1121 if(state->have_session_key)
1122 data_blob_free(&state->session_key);
1123
1124 state->session_key = data_blob(
1125 state->ntlmssp_state->session_key.data,
1126 state->ntlmssp_state->session_key.length);
1127 state->neg_flags = state->ntlmssp_state->neg_flags;
1128 state->have_session_key = true;
1129
1130 DEBUG(10, ("NTLMSSP OK!\n"));
1131 state->cli_state = CLIENT_FINISHED;
1132 TALLOC_FREE(state->ntlmssp_state);
1133 } else {
1134 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
1135 DEBUG(0, ("NTLMSSP BH: %s\n", nt_errstr(nt_status)));
1136 state->cli_state = CLIENT_ERROR;
1137 TALLOC_FREE(state->ntlmssp_state);
1138 }
1139
1140 data_blob_free(&request);
1141 }
1142
1143 static void manage_squid_basic_request(struct ntlm_auth_state *state,
1144 char *buf, int length)
1145 {
1146 char *user, *pass;
1147 user=buf;
1148
1149 pass=(char *)memchr(buf,' ',length);
1150 if (!pass) {
1151 DEBUG(2, ("Password not found. Denying access\n"));
1152 x_fprintf(x_stdout, "ERR\n");
1153 return;
1154 }
1155 *pass='\0';
1156 pass++;
1157
1158 if (state->helper_mode == SQUID_2_5_BASIC) {
1159 rfc1738_unescape(user);
1160 rfc1738_unescape(pass);
1161 }
1162
1163 if (check_plaintext_auth(user, pass, False)) {
1164 x_fprintf(x_stdout, "OK\n");
1165 } else {
1166 x_fprintf(x_stdout, "ERR\n");
1167 }
1168 }
1169
1170 static void offer_gss_spnego_mechs(void) {
1171
1172 DATA_BLOB token;
1173 struct spnego_data spnego;
1174 ssize_t len;
1175 char *reply_base64;
1176 TALLOC_CTX *ctx = talloc_tos();
1177 char *principal;
1178 char *myname_lower;
1179
1180 ZERO_STRUCT(spnego);
1181
1182 myname_lower = talloc_strdup(ctx, global_myname());
1183 if (!myname_lower) {
1184 return;
1185 }
1186 strlower_m(myname_lower);
1187
1188 principal = talloc_asprintf(ctx, "%s$@%s", myname_lower, lp_realm());
1189 if (!principal) {
1190 return;
1191 }
1192
1193 /* Server negTokenInit (mech offerings) */
1194 spnego.type = SPNEGO_NEG_TOKEN_INIT;
1195 spnego.negTokenInit.mechTypes = talloc_array(ctx, const char *, 3);
1196 #ifdef HAVE_KRB5
1197 spnego.negTokenInit.mechTypes[0] = talloc_strdup(ctx, OID_KERBEROS5_OLD);
1198 spnego.negTokenInit.mechTypes[1] = talloc_strdup(ctx, OID_NTLMSSP);
1199 spnego.negTokenInit.mechTypes[2] = NULL;
1200 #else
1201 spnego.negTokenInit.mechTypes[0] = talloc_strdup(ctx, OID_NTLMSSP);
1202 spnego.negTokenInit.mechTypes[1] = NULL;
1203 #endif
1204
1205
1206 spnego.negTokenInit.mechListMIC = data_blob_talloc(ctx, principal,
1207 strlen(principal));
1208
1209 len = spnego_write_data(ctx, &token, &spnego);
1210 spnego_free_data(&spnego);
1211
1212 if (len == -1) {
1213 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1214 x_fprintf(x_stdout, "BH Could not write SPNEGO data blob\n");
1215 return;
1216 }
1217
1218 reply_base64 = base64_encode_data_blob(talloc_tos(), token);
1219 x_fprintf(x_stdout, "TT %s *\n", reply_base64);
1220
1221 TALLOC_FREE(reply_base64);
1222 data_blob_free(&token);
1223 DEBUG(10, ("sent SPNEGO negTokenInit\n"));
1224 return;
1225 }
1226
1227 bool spnego_parse_krb5_wrap(TALLOC_CTX *ctx, DATA_BLOB blob, DATA_BLOB *ticket, uint8 tok_id[2])
1228 {
1229 bool ret;
1230 ASN1_DATA *data;
1231 int data_remaining;
1232
1233 data = asn1_init(talloc_tos());
1234 if (data == NULL) {
1235 return false;
1236 }
1237
1238 asn1_load(data, blob);
1239 asn1_start_tag(data, ASN1_APPLICATION(0));
1240 asn1_check_OID(data, OID_KERBEROS5);
1241
1242 data_remaining = asn1_tag_remaining(data);
1243
1244 if (data_remaining < 3) {
1245 data->has_error = True;
1246 } else {
1247 asn1_read(data, tok_id, 2);
1248 data_remaining -= 2;
1249 *ticket = data_blob_talloc(ctx, NULL, data_remaining);
1250 asn1_read(data, ticket->data, ticket->length);
1251 }
1252
1253 asn1_end_tag(data);
1254
1255 ret = !data->has_error;
1256
1257 if (data->has_error) {
1258 data_blob_free(ticket);
1259 }
1260
1261 asn1_free(data);
1262
1263 return ret;
1264 }
1265
1266 static void manage_gss_spnego_request(struct ntlm_auth_state *state,
1267 char *buf, int length)
1268 {
1269 static struct ntlmssp_state *ntlmssp_state = NULL;
1270 struct spnego_data request, response;
1271 DATA_BLOB token;
1272 NTSTATUS status;
1273 ssize_t len;
1274 TALLOC_CTX *ctx = talloc_tos();
1275
1276 char *user = NULL;
1277 char *domain = NULL;
1278
1279 const char *reply_code;
1280 char *reply_base64;
1281 char *reply_argument = NULL;
1282
1283 if (strlen(buf) < 2) {
1284 DEBUG(1, ("SPENGO query [%s] invalid\n", buf));
1285 x_fprintf(x_stdout, "BH SPENGO query invalid\n");
1286 return;
1287 }
1288
1289 if (strncmp(buf, "YR", 2) == 0) {
1290 TALLOC_FREE(ntlmssp_state);
1291 } else if (strncmp(buf, "KK", 2) == 0) {
1292 ;
1293 } else {
1294 DEBUG(1, ("SPENGO query [%s] invalid\n", buf));
1295 x_fprintf(x_stdout, "BH SPENGO query invalid\n");
1296 return;
1297 }
1298
1299 if ( (strlen(buf) == 2)) {
1300
1301 /* no client data, get the negTokenInit offering
1302 mechanisms */
1303
1304 offer_gss_spnego_mechs();
1305 return;
1306 }
1307
1308 /* All subsequent requests have a blob. This might be negTokenInit or negTokenTarg */
1309
1310 if (strlen(buf) <= 3) {
1311 DEBUG(1, ("GSS-SPNEGO query [%s] invalid\n", buf));
1312 x_fprintf(x_stdout, "BH GSS-SPNEGO query invalid\n");
1313 return;
1314 }
1315
1316 token = base64_decode_data_blob(buf + 3);
1317
1318 if ((token.length >= 7)
1319 && (strncmp((char *)token.data, "NTLMSSP", 7) == 0)) {
1320 char *reply;
1321
1322 DEBUG(10, ("Could not parse GSS-SPNEGO, trying raw "
1323 "ntlmssp\n"));
1324
1325 manage_squid_ntlmssp_request_int(state, buf, length,
1326 talloc_tos(), &reply);
1327 if (reply == NULL) {
1328 x_fprintf(x_stdout, "BH Out of memory\n");
1329 return;
1330 }
1331
1332 if (strncmp(reply, "AF ", 3) == 0) {
1333 x_fprintf(x_stdout, "AF * %s\n", reply+3);
1334 } else {
1335 x_fprintf(x_stdout, "%s *\n", reply);
1336 }
1337
1338 TALLOC_FREE(reply);
1339 return;
1340 }
1341
1342 len = spnego_read_data(ctx, token, &request);
1343 data_blob_free(&token);
1344
1345 if (len == -1) {
1346 DEBUG(1, ("GSS-SPNEGO query [%s] invalid\n", buf));
1347 x_fprintf(x_stdout, "BH GSS-SPNEGO query invalid\n");
1348 return;
1349 }
1350
1351 if (request.type == SPNEGO_NEG_TOKEN_INIT) {
1352
1353 /* Second request from Client. This is where the
1354 client offers its mechanism to use. */
1355
1356 if ( (request.negTokenInit.mechTypes == NULL) ||
1357 (request.negTokenInit.mechTypes[0] == NULL) ) {
1358 DEBUG(1, ("Client did not offer any mechanism\n"));
1359 x_fprintf(x_stdout, "BH Client did not offer any "
1360 "mechanism\n");
1361 return;
1362 }
1363
1364 status = NT_STATUS_UNSUCCESSFUL;
1365 if (strcmp(request.negTokenInit.mechTypes[0], OID_NTLMSSP) == 0) {
1366
1367 if ( request.negTokenInit.mechToken.data == NULL ) {
1368 DEBUG(1, ("Client did not provide NTLMSSP data\n"));
1369 x_fprintf(x_stdout, "BH Client did not provide "
1370 "NTLMSSP data\n");
1371 return;
1372 }
1373
1374 if ( ntlmssp_state != NULL ) {
1375 DEBUG(1, ("Client wants a new NTLMSSP challenge, but "
1376 "already got one\n"));
1377 x_fprintf(x_stdout, "BH Client wants a new "
1378 "NTLMSSP challenge, but "
1379 "already got one\n");
1380 TALLOC_FREE(ntlmssp_state);
1381 return;
1382 }
1383
1384 if (!NT_STATUS_IS_OK(status = ntlm_auth_start_ntlmssp_server(&ntlmssp_state))) {
1385 x_fprintf(x_stdout, "BH %s\n", nt_errstr(status));
1386 return;
1387 }
1388
1389 DEBUG(10, ("got NTLMSSP packet:\n"));
1390 dump_data(10, request.negTokenInit.mechToken.data,
1391 request.negTokenInit.mechToken.length);
1392
1393 response.type = SPNEGO_NEG_TOKEN_TARG;
1394 response.negTokenTarg.supportedMech = talloc_strdup(ctx, OID_NTLMSSP);
1395 response.negTokenTarg.mechListMIC = data_blob_talloc(ctx, NULL, 0);
1396
1397 status = ntlmssp_update(ntlmssp_state,
1398 request.negTokenInit.mechToken,
1399 &response.negTokenTarg.responseToken);
1400 }
1401
1402 #ifdef HAVE_KRB5
1403 if (strcmp(request.negTokenInit.mechTypes[0], OID_KERBEROS5_OLD) == 0) {
1404
1405 TALLOC_CTX *mem_ctx = talloc_init("manage_gss_spnego_request");
1406 char *principal;
1407 DATA_BLOB ap_rep;
1408 DATA_BLOB session_key;
1409 struct PAC_LOGON_INFO *logon_info = NULL;
1410 DATA_BLOB ticket;
1411 uint8_t tok_id[2];
1412
1413 if ( request.negTokenInit.mechToken.data == NULL ) {
1414 DEBUG(1, ("Client did not provide Kerberos data\n"));
1415 x_fprintf(x_stdout, "BH Client did not provide "
1416 "Kerberos data\n");
1417 return;
1418 }
1419
1420 dump_data(10, request.negTokenInit.mechToken.data,
1421 request.negTokenInit.mechToken.length);
1422
1423 if (!spnego_parse_krb5_wrap(ctx, request.negTokenInit.mechToken,
1424 &ticket, tok_id)) {
1425 DEBUG(1, ("spnego_parse_krb5_wrap failed\n"));
1426 x_fprintf(x_stdout, "BH spnego_parse_krb5_wrap failed\n");
1427 return;
1428 }
1429
1430 response.type = SPNEGO_NEG_TOKEN_TARG;
1431 response.negTokenTarg.supportedMech = talloc_strdup(ctx, OID_KERBEROS5_OLD);
1432 response.negTokenTarg.mechListMIC = data_blob_talloc(ctx, NULL, 0);
1433 response.negTokenTarg.responseToken = data_blob_talloc(ctx, NULL, 0);
1434
1435 status = ads_verify_ticket(mem_ctx, lp_realm(), 0,
1436 &ticket,
1437 &principal, &logon_info, &ap_rep,
1438 &session_key, True);
1439
1440 /* Now in "principal" we have the name we are
1441 authenticated as. */
1442
1443 if (NT_STATUS_IS_OK(status)) {
1444
1445 domain = strchr_m(principal, '@');
1446
1447 if (domain == NULL) {
1448 DEBUG(1, ("Did not get a valid principal "
1449 "from ads_verify_ticket\n"));
1450 x_fprintf(x_stdout, "BH Did not get a "
1451 "valid principal from "
1452 "ads_verify_ticket\n");
1453 return;
1454 }
1455
1456 *domain++ = '\0';
1457 domain = SMB_STRDUP(domain);
1458 user = SMB_STRDUP(principal);
1459
1460 netsamlogon_cache_store(
1461 user, &logon_info->info3);
1462
1463 data_blob_free(&ap_rep);
1464 }
1465
1466 TALLOC_FREE(mem_ctx);
1467 }
1468 #endif
1469
1470 } else {
1471
1472 if ( (request.negTokenTarg.supportedMech == NULL) ||
1473 ( strcmp(request.negTokenTarg.supportedMech, OID_NTLMSSP) != 0 ) ) {
1474 /* Kerberos should never send a negTokenTarg, OID_NTLMSSP
1475 is the only one we support that sends this stuff */
1476 DEBUG(1, ("Got a negTokenTarg for something non-NTLMSSP: %s\n",
1477 request.negTokenTarg.supportedMech));
1478 x_fprintf(x_stdout, "BH Got a negTokenTarg for "
1479 "something non-NTLMSSP\n");
1480 return;
1481 }
1482
1483 if (request.negTokenTarg.responseToken.data == NULL) {
1484 DEBUG(1, ("Got a negTokenTarg without a responseToken!\n"));
1485 x_fprintf(x_stdout, "BH Got a negTokenTarg without a "
1486 "responseToken!\n");
1487 return;
1488 }
1489
1490 status = ntlmssp_update(ntlmssp_state,
1491 request.negTokenTarg.responseToken,
1492 &response.negTokenTarg.responseToken);
1493
1494 response.type = SPNEGO_NEG_TOKEN_TARG;
1495 response.negTokenTarg.supportedMech = talloc_strdup(ctx, OID_NTLMSSP);
1496 response.negTokenTarg.mechListMIC = data_blob_talloc(ctx, NULL, 0);
1497
1498 if (NT_STATUS_IS_OK(status)) {
1499 user = SMB_STRDUP(ntlmssp_state->user);
1500 domain = SMB_STRDUP(ntlmssp_state->domain);
1501 TALLOC_FREE(ntlmssp_state);
1502 }
1503 }
1504
1505 spnego_free_data(&request);
1506
1507 if (NT_STATUS_IS_OK(status)) {
1508 response.negTokenTarg.negResult = SPNEGO_ACCEPT_COMPLETED;
1509 reply_code = "AF";
1510 reply_argument = talloc_asprintf(ctx, "%s\\%s", domain, user);
1511 } else if (NT_STATUS_EQUAL(status,
1512 NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1513 response.negTokenTarg.negResult = SPNEGO_ACCEPT_INCOMPLETE;
1514 reply_code = "TT";
1515 reply_argument = talloc_strdup(ctx, "*");
1516 } else {
1517 response.negTokenTarg.negResult = SPNEGO_REJECT;
1518 reply_code = "NA";
1519 reply_argument = talloc_strdup(ctx, nt_errstr(status));
1520 }
1521
1522 if (!reply_argument) {
1523 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1524 x_fprintf(x_stdout, "BH Could not write SPNEGO data blob\n");
1525 return;
1526 }
1527
1528 SAFE_FREE(user);
1529 SAFE_FREE(domain);
1530
1531 len = spnego_write_data(ctx, &token, &response);
1532 spnego_free_data(&response);
1533
1534 if (len == -1) {
1535 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1536 x_fprintf(x_stdout, "BH Could not write SPNEGO data blob\n");
1537 return;
1538 }
1539
1540 reply_base64 = base64_encode_data_blob(talloc_tos(), token);
1541
1542 x_fprintf(x_stdout, "%s %s %s\n",
1543 reply_code, reply_base64, reply_argument);
1544
1545 TALLOC_FREE(reply_base64);
1546 data_blob_free(&token);
1547
1548 return;
1549 }
1550
1551 static struct ntlmssp_state *client_ntlmssp_state = NULL;
1552
1553 static bool manage_client_ntlmssp_init(struct spnego_data spnego)
1554 {
1555 NTSTATUS status;
1556 DATA_BLOB null_blob = data_blob_null;
1557 DATA_BLOB to_server;
1558 char *to_server_base64;
1559 const char *my_mechs[] = {OID_NTLMSSP, NULL};
1560 TALLOC_CTX *ctx = talloc_tos();
1561
1562 DEBUG(10, ("Got spnego negTokenInit with NTLMSSP\n"));
1563
1564 if (client_ntlmssp_state != NULL) {
1565 DEBUG(1, ("Request for initial SPNEGO request where "
1566 "we already have a state\n"));
1567 return False;
1568 }
1569
1570 if (!client_ntlmssp_state) {
1571 if (!NT_STATUS_IS_OK(status = ntlm_auth_start_ntlmssp_client(&client_ntlmssp_state))) {
1572 x_fprintf(x_stdout, "BH %s\n", nt_errstr(status));
1573 return False;
1574 }
1575 }
1576
1577
1578 if (opt_password == NULL) {
1579
1580 /* Request a password from the calling process. After
1581 sending it, the calling process should retry with
1582 the negTokenInit. */
1583
1584 DEBUG(10, ("Requesting password\n"));
1585 x_fprintf(x_stdout, "PW\n");
1586 return True;
1587 }
1588
1589 spnego.type = SPNEGO_NEG_TOKEN_INIT;
1590 spnego.negTokenInit.mechTypes = my_mechs;
1591 spnego.negTokenInit.reqFlags = data_blob_null;
1592 spnego.negTokenInit.reqFlagsPadding = 0;
1593 spnego.negTokenInit.mechListMIC = null_blob;
1594
1595 status = ntlmssp_update(client_ntlmssp_state, null_blob,
1596 &spnego.negTokenInit.mechToken);
1597
1598 if ( !(NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED) ||
1599 NT_STATUS_IS_OK(status)) ) {
1600 DEBUG(1, ("Expected OK or MORE_PROCESSING_REQUIRED, got: %s\n",
1601 nt_errstr(status)));
1602 TALLOC_FREE(client_ntlmssp_state);
1603 return False;
1604 }
1605
1606 spnego_write_data(ctx, &to_server, &spnego);
1607 data_blob_free(&spnego.negTokenInit.mechToken);
1608
1609 to_server_base64 = base64_encode_data_blob(talloc_tos(), to_server);
1610 data_blob_free(&to_server);
1611 x_fprintf(x_stdout, "KK %s\n", to_server_base64);
1612 TALLOC_FREE(to_server_base64);
1613 return True;
1614 }
1615
1616 static void manage_client_ntlmssp_targ(struct spnego_data spnego)
1617 {
1618 NTSTATUS status;
1619 DATA_BLOB null_blob = data_blob_null;
1620 DATA_BLOB request;
1621 DATA_BLOB to_server;
1622 char *to_server_base64;
1623 TALLOC_CTX *ctx = talloc_tos();
1624
1625 DEBUG(10, ("Got spnego negTokenTarg with NTLMSSP\n"));
1626
1627 if (client_ntlmssp_state == NULL) {
1628 DEBUG(1, ("Got NTLMSSP tArg without a client state\n"));
1629 x_fprintf(x_stdout, "BH Got NTLMSSP tArg without a client state\n");
1630 return;
1631 }
1632
1633 if (spnego.negTokenTarg.negResult == SPNEGO_REJECT) {
1634 x_fprintf(x_stdout, "NA\n");
1635 TALLOC_FREE(client_ntlmssp_state);
1636 return;
1637 }
1638
1639 if (spnego.negTokenTarg.negResult == SPNEGO_ACCEPT_COMPLETED) {
1640 x_fprintf(x_stdout, "AF\n");
1641 TALLOC_FREE(client_ntlmssp_state);
1642 return;
1643 }
1644
1645 status = ntlmssp_update(client_ntlmssp_state,
1646 spnego.negTokenTarg.responseToken,
1647 &request);
1648
1649 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1650 DEBUG(1, ("Expected MORE_PROCESSING_REQUIRED from "
1651 "ntlmssp_client_update, got: %s\n",
1652 nt_errstr(status)));
1653 x_fprintf(x_stdout, "BH Expected MORE_PROCESSING_REQUIRED from "
1654 "ntlmssp_client_update\n");
1655 data_blob_free(&request);
1656 TALLOC_FREE(client_ntlmssp_state);
1657 return;
1658 }
1659
1660 spnego.type = SPNEGO_NEG_TOKEN_TARG;
1661 spnego.negTokenTarg.negResult = SPNEGO_ACCEPT_INCOMPLETE;
1662 spnego.negTokenTarg.supportedMech = (char *)OID_NTLMSSP;
1663 spnego.negTokenTarg.responseToken = request;
1664 spnego.negTokenTarg.mechListMIC = null_blob;
1665
1666 spnego_write_data(ctx, &to_server, &spnego);
1667 data_blob_free(&request);
1668
1669 to_server_base64 = base64_encode_data_blob(talloc_tos(), to_server);
1670 data_blob_free(&to_server);
1671 x_fprintf(x_stdout, "KK %s\n", to_server_base64);
1672 TALLOC_FREE(to_server_base64);
1673 return;
1674 }
1675
1676 #ifdef HAVE_KRB5
1677
1678 static bool manage_client_krb5_init(struct spnego_data spnego)
1679 {
1680 char *principal;
1681 DATA_BLOB tkt, to_server;
1682 DATA_BLOB session_key_krb5 = data_blob_null;
1683 struct spnego_data reply;
1684 char *reply_base64;
1685 int retval;
1686
1687 const char *my_mechs[] = {OID_KERBEROS5_OLD, NULL};
1688 ssize_t len;
1689 TALLOC_CTX *ctx = talloc_tos();
1690
1691 if ( (spnego.negTokenInit.mechListMIC.data == NULL) ||
1692 (spnego.negTokenInit.mechListMIC.length == 0) ) {
1693 DEBUG(1, ("Did not get a principal for krb5\n"));
1694 return False;
1695 }
1696
1697 principal = (char *)SMB_MALLOC(
1698 spnego.negTokenInit.mechListMIC.length+1);
1699
1700 if (principal == NULL) {
1701 DEBUG(1, ("Could not malloc principal\n"));
1702 return False;
1703 }
1704
1705 memcpy(principal, spnego.negTokenInit.mechListMIC.data,
1706 spnego.negTokenInit.mechListMIC.length);
1707 principal[spnego.negTokenInit.mechListMIC.length] = '\0';
1708
1709 retval = cli_krb5_get_ticket(ctx, principal, 0,
1710 &tkt, &session_key_krb5,
1711 0, NULL, NULL, NULL);
1712 if (retval) {
1713 char *user = NULL;
1714
1715 /* Let's try to first get the TGT, for that we need a
1716 password. */
1717
1718 if (opt_password == NULL) {
1719 DEBUG(10, ("Requesting password\n"));
1720 x_fprintf(x_stdout, "PW\n");
1721 return True;
1722 }
1723
1724 user = talloc_asprintf(talloc_tos(), "%s@%s", opt_username, opt_domain);
1725 if (!user) {
1726 return false;
1727 }
1728
1729 if ((retval = kerberos_kinit_password(user, opt_password, 0, NULL))) {
1730 DEBUG(10, ("Requesting TGT failed: %s\n", error_message(retval)));
1731 return False;
1732 }
1733
1734 retval = cli_krb5_get_ticket(ctx, principal, 0,
1735 &tkt, &session_key_krb5,
1736 0, NULL, NULL, NULL);
1737 if (retval) {
1738 DEBUG(10, ("Kinit suceeded, but getting a ticket failed: %s\n", error_message(retval)));
1739 return False;
1740 }
1741 }
1742
1743 data_blob_free(&session_key_krb5);
1744
1745 ZERO_STRUCT(reply);
1746
1747 reply.type = SPNEGO_NEG_TOKEN_INIT;
1748 reply.negTokenInit.mechTypes = my_mechs;
1749 reply.negTokenInit.reqFlags = data_blob_null;
1750 reply.negTokenInit.reqFlagsPadding = 0;
1751 reply.negTokenInit.mechToken = tkt;
1752 reply.negTokenInit.mechListMIC = data_blob_null;
1753
1754 len = spnego_write_data(ctx, &to_server, &reply);
1755 data_blob_free(&tkt);
1756
1757 if (len == -1) {
1758 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1759 return False;
1760 }
1761
1762 reply_base64 = base64_encode_data_blob(talloc_tos(), to_server);
1763 x_fprintf(x_stdout, "KK %s *\n", reply_base64);
1764
1765 TALLOC_FREE(reply_base64);
1766 data_blob_free(&to_server);
1767 DEBUG(10, ("sent GSS-SPNEGO KERBEROS5 negTokenInit\n"));
1768 return True;
1769 }
1770
1771 static void manage_client_krb5_targ(struct spnego_data spnego)
1772 {
1773 switch (spnego.negTokenTarg.negResult) {
1774 case SPNEGO_ACCEPT_INCOMPLETE:
1775 DEBUG(1, ("Got a Kerberos negTokenTarg with ACCEPT_INCOMPLETE\n"));
1776 x_fprintf(x_stdout, "BH Got a Kerberos negTokenTarg with "
1777 "ACCEPT_INCOMPLETE\n");
1778 break;
1779 case SPNEGO_ACCEPT_COMPLETED:
1780 DEBUG(10, ("Accept completed\n"));
1781 x_fprintf(x_stdout, "AF\n");
1782 break;
1783 case SPNEGO_REJECT:
1784 DEBUG(10, ("Rejected\n"));
1785 x_fprintf(x_stdout, "NA\n");
1786 break;
1787 default:
1788 DEBUG(1, ("Got an invalid negTokenTarg\n"));
1789 x_fprintf(x_stdout, "AF\n");
1790 }
1791 }
1792
1793 #endif
1794
1795 static void manage_gss_spnego_client_request(struct ntlm_auth_state *state,
1796 char *buf, int length)
1797 {
1798 DATA_BLOB request;
1799 struct spnego_data spnego;
1800 ssize_t len;
1801 TALLOC_CTX *ctx = talloc_tos();
1802
1803 if (!opt_username || !*opt_username) {
1804 x_fprintf(x_stderr, "username must be specified!\n\n");
1805 exit(1);
1806 }
1807
1808 if (strlen(buf) <= 3) {
1809 DEBUG(1, ("SPNEGO query [%s] too short\n", buf));
1810 x_fprintf(x_stdout, "BH SPNEGO query too short\n");
1811 return;
1812 }
1813
1814 request = base64_decode_data_blob(buf+3);
1815
1816 if (strncmp(buf, "PW ", 3) == 0) {
1817
1818 /* We asked for a password and obviously got it :-) */
1819
1820 opt_password = SMB_STRNDUP((const char *)request.data, request.length);
1821
1822 if (opt_password == NULL) {
1823 DEBUG(1, ("Out of memory\n"));
1824 x_fprintf(x_stdout, "BH Out of memory\n");
1825 data_blob_free(&request);
1826 return;
1827 }
1828
1829 x_fprintf(x_stdout, "OK\n");
1830 data_blob_free(&request);
1831 return;
1832 }
1833
1834 if ( (strncmp(buf, "TT ", 3) != 0) &&
1835 (strncmp(buf, "AF ", 3) != 0) &&
1836 (strncmp(buf, "NA ", 3) != 0) ) {
1837 DEBUG(1, ("SPNEGO request [%s] invalid\n", buf));
1838 x_fprintf(x_stdout, "BH SPNEGO request invalid\n");
1839 data_blob_free(&request);
1840 return;
1841 }
1842
1843 /* So we got a server challenge to generate a SPNEGO
1844 client-to-server request... */
1845
1846 len = spnego_read_data(ctx, request, &spnego);
1847 data_blob_free(&request);
1848
1849 if (len == -1) {
1850 DEBUG(1, ("Could not read SPNEGO data for [%s]\n", buf));
1851 x_fprintf(x_stdout, "BH Could not read SPNEGO data\n");
1852 return;
1853 }
1854
1855 if (spnego.type == SPNEGO_NEG_TOKEN_INIT) {
1856
1857 /* The server offers a list of mechanisms */
1858
1859 const char **mechType = (const char **)spnego.negTokenInit.mechTypes;
1860
1861 while (*mechType != NULL) {
1862
1863 #ifdef HAVE_KRB5
1864 if ( (strcmp(*mechType, OID_KERBEROS5_OLD) == 0) ||
1865 (strcmp(*mechType, OID_KERBEROS5) == 0) ) {
1866 if (manage_client_krb5_init(spnego))
1867 goto out;
1868 }
1869 #endif
1870
1871 if (strcmp(*mechType, OID_NTLMSSP) == 0) {
1872 if (manage_client_ntlmssp_init(spnego))
1873 goto out;
1874 }
1875
1876 mechType++;
1877 }
1878
1879 DEBUG(1, ("Server offered no compatible mechanism\n"));
1880 x_fprintf(x_stdout, "BH Server offered no compatible mechanism\n");
1881 return;
1882 }
1883
1884 if (spnego.type == SPNEGO_NEG_TOKEN_TARG) {
1885
1886 if (spnego.negTokenTarg.supportedMech == NULL) {
1887 /* On accept/reject Windows does not send the
1888 mechanism anymore. Handle that here and
1889 shut down the mechanisms. */
1890
1891 switch (spnego.negTokenTarg.negResult) {
1892 case SPNEGO_ACCEPT_COMPLETED:
1893 x_fprintf(x_stdout, "AF\n");
1894 break;
1895 case SPNEGO_REJECT:
1896 x_fprintf(x_stdout, "NA\n");
1897 break;
1898 default:
1899 DEBUG(1, ("Got a negTokenTarg with no mech and an "
1900 "unknown negResult: %d\n",
1901 spnego.negTokenTarg.negResult));
1902 x_fprintf(x_stdout, "BH Got a negTokenTarg with"
1903 " no mech and an unknown "
1904 "negResult\n");
1905 }
1906
1907 TALLOC_FREE(client_ntlmssp_state);
1908 goto out;
1909 }
1910
1911 if (strcmp(spnego.negTokenTarg.supportedMech,
1912 OID_NTLMSSP) == 0) {
1913 manage_client_ntlmssp_targ(spnego);
1914 goto out;
1915 }
1916
1917 #if HAVE_KRB5
1918 if (strcmp(spnego.negTokenTarg.supportedMech,
1919 OID_KERBEROS5_OLD) == 0) {
1920 manage_client_krb5_targ(spnego);
1921 goto out;
1922 }
1923 #endif
1924
1925 }
1926
1927 DEBUG(1, ("Got an SPNEGO token I could not handle [%s]!\n", buf));
1928 x_fprintf(x_stdout, "BH Got an SPNEGO token I could not handle\n");
1929 return;
1930
1931 out:
1932 spnego_free_data(&spnego);
1933 return;
1934 }
1935
1936 static void manage_ntlm_server_1_request(struct ntlm_auth_state *state,
1937 char *buf, int length)
1938 {
1939 char *request, *parameter;
1940 static DATA_BLOB challenge;
1941 static DATA_BLOB lm_response;
1942 static DATA_BLOB nt_response;
1943 static char *full_username;
1944 static char *username;
1945 static char *domain;
1946 static char *plaintext_password;
1947 static bool ntlm_server_1_user_session_key;
1948 static bool ntlm_server_1_lm_session_key;
1949
1950 if (strequal(buf, ".")) {
1951 if (!full_username && !username) {
1952 x_fprintf(x_stdout, "Error: No username supplied!\n");
1953 } else if (plaintext_password) {
1954 /* handle this request as plaintext */
1955 if (!full_username) {
1956 if (asprintf(&full_username, "%s%c%s", domain, winbind_separator(), username) == -1) {
1957 x_fprintf(x_stdout, "Error: Out of memory in asprintf!\n.\n");
1958 return;
1959 }
1960 }
1961 if (check_plaintext_auth(full_username, plaintext_password, False)) {
1962 x_fprintf(x_stdout, "Authenticated: Yes\n");
1963 } else {
1964 x_fprintf(x_stdout, "Authenticated: No\n");
1965 }
1966 } else if (!lm_response.data && !nt_response.data) {
1967 x_fprintf(x_stdout, "Error: No password supplied!\n");
1968 } else if (!challenge.data) {
1969 x_fprintf(x_stdout, "Error: No lanman-challenge supplied!\n");
1970 } else {
1971 char *error_string = NULL;
1972 uchar lm_key[8];
1973 uchar user_session_key[16];
1974 uint32 flags = 0;
1975
1976 if (full_username && !username) {
1977 fstring fstr_user;
1978 fstring fstr_domain;
1979
1980 if (!parse_ntlm_auth_domain_user(full_username, fstr_user, fstr_domain)) {
1981 /* username might be 'tainted', don't print into our new-line deleimianted stream */
1982 x_fprintf(x_stdout, "Error: Could not parse into domain and username\n");
1983 }
1984 SAFE_FREE(username);
1985 SAFE_FREE(domain);
1986 username = smb_xstrdup(fstr_user);
1987 domain = smb_xstrdup(fstr_domain);
1988 }
1989
1990 if (!domain) {
1991 domain = smb_xstrdup(get_winbind_domain());
1992 }
1993
1994 if (ntlm_server_1_lm_session_key)
1995 flags |= WBFLAG_PAM_LMKEY;
1996
1997 if (ntlm_server_1_user_session_key)
1998 flags |= WBFLAG_PAM_USER_SESSION_KEY;
1999
2000 if (!NT_STATUS_IS_OK(
2001 contact_winbind_auth_crap(username,
2002 domain,
2003 global_myname(),
2004 &challenge,
2005 &lm_response,
2006 &nt_response,
2007 flags,
2008 lm_key,
2009 user_session_key,
2010 &error_string,
2011 NULL))) {
2012
2013 x_fprintf(x_stdout, "Authenticated: No\n");
2014 x_fprintf(x_stdout, "Authentication-Error: %s\n.\n", error_string);
2015 } else {
2016 static char zeros[16];
2017 char *hex_lm_key;
2018 char *hex_user_session_key;
2019
2020 x_fprintf(x_stdout, "Authenticated: Yes\n");
2021
2022 if (ntlm_server_1_lm_session_key
2023 && (memcmp(zeros, lm_key,
2024 sizeof(lm_key)) != 0)) {
2025 hex_lm_key = hex_encode_talloc(NULL,
2026 (const unsigned char *)lm_key,
2027 sizeof(lm_key));
2028 x_fprintf(x_stdout, "LANMAN-Session-Key: %s\n", hex_lm_key);
2029 TALLOC_FREE(hex_lm_key);
2030 }
2031
2032 if (ntlm_server_1_user_session_key
2033 && (memcmp(zeros, user_session_key,
2034 sizeof(user_session_key)) != 0)) {
2035 hex_user_session_key = hex_encode_talloc(NULL,
2036 (const unsigned char *)user_session_key,
2037 sizeof(user_session_key));
2038 x_fprintf(x_stdout, "User-Session-Key: %s\n", hex_user_session_key);
2039 TALLOC_FREE(hex_user_session_key);
2040 }
2041 }
2042 SAFE_FREE(error_string);
2043 }
2044 /* clear out the state */
2045 challenge = data_blob_null;
2046 nt_response = data_blob_null;
2047 lm_response = data_blob_null;
2048 SAFE_FREE(full_username);
2049 SAFE_FREE(username);
2050 SAFE_FREE(domain);
2051 SAFE_FREE(plaintext_password);
2052 ntlm_server_1_user_session_key = False;
2053 ntlm_server_1_lm_session_key = False;
2054 x_fprintf(x_stdout, ".\n");
2055
2056 return;
2057 }
2058
2059 request = buf;
2060
2061 /* Indicates a base64 encoded structure */
2062 parameter = strstr_m(request, ":: ");
2063 if (!parameter) {
2064 parameter = strstr_m(request, ": ");
2065
2066 if (!parameter) {
2067 DEBUG(0, ("Parameter not found!\n"));
2068 x_fprintf(x_stdout, "Error: Parameter not found!\n.\n");
2069 return;
2070 }
2071
2072 parameter[0] ='\0';
2073 parameter++;
2074 parameter[0] ='\0';
2075 parameter++;
2076
2077 } else {
2078 parameter[0] ='\0';
2079 parameter++;
2080 parameter[0] ='\0';
2081 parameter++;
2082 parameter[0] ='\0';
2083 parameter++;
2084
2085 base64_decode_inplace(parameter);
2086 }
2087
2088 if (strequal(request, "LANMAN-Challenge")) {
2089 challenge = strhex_to_data_blob(NULL, parameter);
2090 if (challenge.length != 8) {
2091 x_fprintf(x_stdout, "Error: hex decode of %s failed! (got %d bytes, expected 8)\n.\n",
2092 parameter,
2093 (int)challenge.length);
2094 challenge = data_blob_null;
2095 }
2096 } else if (strequal(request, "NT-Response")) {
2097 nt_response = strhex_to_data_blob(NULL, parameter);
2098 if (nt_response.length < 24) {
2099 x_fprintf(x_stdout, "Error: hex decode of %s failed! (only got %d bytes, needed at least 24)\n.\n",
2100 parameter,
2101 (int)nt_response.length);
2102 nt_response = data_blob_null;
2103 }
2104 } else if (strequal(request, "LANMAN-Response")) {
2105 lm_response = strhex_to_data_blob(NULL, parameter);
2106 if (lm_response.length != 24) {
2107 x_fprintf(x_stdout, "Error: hex decode of %s failed! (got %d bytes, expected 24)\n.\n",
2108 parameter,
2109 (int)lm_response.length);
2110 lm_response = data_blob_null;
2111 }
2112 } else if (strequal(request, "Password")) {
2113 plaintext_password = smb_xstrdup(parameter);
2114 } else if (strequal(request, "NT-Domain")) {
2115 domain = smb_xstrdup(parameter);
2116 } else if (strequal(request, "Username")) {
2117 username = smb_xstrdup(parameter);
2118 } else if (strequal(request, "Full-Username")) {
2119 full_username = smb_xstrdup(parameter);
2120 } else if (strequal(request, "Request-User-Session-Key")) {
2121 ntlm_server_1_user_session_key = strequal(parameter, "Yes");
2122 } else if (strequal(request, "Request-LanMan-Session-Key")) {
2123 ntlm_server_1_lm_session_key = strequal(parameter, "Yes");
2124 } else {
2125 x_fprintf(x_stdout, "Error: Unknown request %s\n.\n", request);
2126 }
2127 }
2128
2129 static void manage_ntlm_change_password_1_request(struct ntlm_auth_state *state,
2130 char *buf, int length)
2131 {
2132 char *request, *parameter;
2133 static DATA_BLOB new_nt_pswd;
2134 static DATA_BLOB old_nt_hash_enc;
2135 static DATA_BLOB new_lm_pswd;
2136 static DATA_BLOB old_lm_hash_enc;
2137 static char *full_username = NULL;
2138 static char *username = NULL;
2139 static char *domain = NULL;
2140 static char *newpswd = NULL;
2141 static char *oldpswd = NULL;
2142
2143 if (strequal(buf, ".")) {
2144 if(newpswd && oldpswd) {
2145 uchar old_nt_hash[16];
2146 uchar old_lm_hash[16];
2147 uchar new_nt_hash[16];
2148 uchar new_lm_hash[16];
2149
2150 new_nt_pswd = data_blob(NULL, 516);
2151 old_nt_hash_enc = data_blob(NULL, 16);
2152
2153 /* Calculate the MD4 hash (NT compatible) of the
2154 * password */
2155 E_md4hash(oldpswd, old_nt_hash);
2156 E_md4hash(newpswd, new_nt_hash);
2157
2158 /* E_deshash returns false for 'long'
2159 passwords (> 14 DOS chars).
2160
2161 Therefore, don't send a buffer
2162 encrypted with the truncated hash
2163 (it could allow an even easier
2164 attack on the password)
2165
2166 Likewise, obey the admin's restriction
2167 */
2168
2169 if (lp_client_lanman_auth() &&
2170 E_deshash(newpswd, new_lm_hash) &&
2171 E_deshash(oldpswd, old_lm_hash)) {
2172 new_lm_pswd = data_blob(NULL, 516);
2173 old_lm_hash_enc = data_blob(NULL, 16);
2174 encode_pw_buffer(new_lm_pswd.data, newpswd,
2175 STR_UNICODE);
2176
2177 arcfour_crypt(new_lm_pswd.data, old_nt_hash, 516);
2178 E_old_pw_hash(new_nt_hash, old_lm_hash,
2179 old_lm_hash_enc.data);
2180 } else {
2181 new_lm_pswd.data = NULL;
2182 new_lm_pswd.length = 0;
2183 old_lm_hash_enc.data = NULL;
2184 old_lm_hash_enc.length = 0;
2185 }
2186
2187 encode_pw_buffer(new_nt_pswd.data, newpswd,
2188 STR_UNICODE);
2189
2190 arcfour_crypt(new_nt_pswd.data, old_nt_hash, 516);
2191 E_old_pw_hash(new_nt_hash, old_nt_hash,
2192 old_nt_hash_enc.data);
2193 }
2194
2195 if (!full_username && !username) {
2196 x_fprintf(x_stdout, "Error: No username supplied!\n");
2197 } else if ((!new_nt_pswd.data || !old_nt_hash_enc.data) &&
2198 (!new_lm_pswd.data || old_lm_hash_enc.data) ) {
2199 x_fprintf(x_stdout, "Error: No NT or LM password "
2200 "blobs supplied!\n");
2201 } else {
2202 char *error_string = NULL;
2203
2204 if (full_username && !username) {
2205 fstring fstr_user;
2206 fstring fstr_domain;
2207
2208 if (!parse_ntlm_auth_domain_user(full_username,
2209 fstr_user,
2210 fstr_domain)) {
2211 /* username might be 'tainted', don't
2212 * print into our new-line
2213 * deleimianted stream */
2214 x_fprintf(x_stdout, "Error: Could not "
2215 "parse into domain and "
2216 "username\n");
2217 SAFE_FREE(username);
2218 username = smb_xstrdup(full_username);
2219 } else {
2220 SAFE_FREE(username);
2221 SAFE_FREE(domain);
2222 username = smb_xstrdup(fstr_user);
2223 domain = smb_xstrdup(fstr_domain);
2224 }
2225
2226 }
2227
2228 if(!NT_STATUS_IS_OK(contact_winbind_change_pswd_auth_crap(
2229 username, domain,
2230 new_nt_pswd,
2231 old_nt_hash_enc,
2232 new_lm_pswd,
2233 old_lm_hash_enc,
2234 &error_string))) {
2235 x_fprintf(x_stdout, "Password-Change: No\n");
2236 x_fprintf(x_stdout, "Password-Change-Error: "
2237 "%s\n.\n", error_string);
2238 } else {
2239 x_fprintf(x_stdout, "Password-Change: Yes\n");
2240 }
2241
2242 SAFE_FREE(error_string);
2243 }
2244 /* clear out the state */
2245 new_nt_pswd = data_blob_null;
2246 old_nt_hash_enc = data_blob_null;
2247 new_lm_pswd = data_blob_null;
2248 old_nt_hash_enc = data_blob_null;
2249 SAFE_FREE(full_username);
2250 SAFE_FREE(username);
2251 SAFE_FREE(domain);
2252 SAFE_FREE(newpswd);
2253 SAFE_FREE(oldpswd);
2254 x_fprintf(x_stdout, ".\n");
2255
2256 return;
2257 }
2258
2259 request = buf;
2260
2261 /* Indicates a base64 encoded structure */
2262 parameter = strstr_m(request, ":: ");
2263 if (!parameter) {
2264 parameter = strstr_m(request, ": ");
2265
2266 if (!parameter) {
2267 DEBUG(0, ("Parameter not found!\n"));
2268 x_fprintf(x_stdout, "Error: Parameter not found!\n.\n");
2269 return;
2270 }
2271
2272 parameter[0] ='\0';
2273 parameter++;
2274 parameter[0] ='\0';
2275 parameter++;
2276 } else {
2277 parameter[0] ='\0';
2278 parameter++;
2279 parameter[0] ='\0';
2280 parameter++;
2281 parameter[0] ='\0';
2282 parameter++;
2283
2284 base64_decode_inplace(parameter);
2285 }
2286
2287 if (strequal(request, "new-nt-password-blob")) {
2288 new_nt_pswd = strhex_to_data_blob(NULL, parameter);
2289 if (new_nt_pswd.length != 516) {
2290 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2291 "(got %d bytes, expected 516)\n.\n",
2292 parameter,
2293 (int)new_nt_pswd.length);
2294 new_nt_pswd = data_blob_null;
2295 }
2296 } else if (strequal(request, "old-nt-hash-blob")) {
2297 old_nt_hash_enc = strhex_to_data_blob(NULL, parameter);
2298 if (old_nt_hash_enc.length != 16) {
2299 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2300 "(got %d bytes, expected 16)\n.\n",
2301 parameter,
2302 (int)old_nt_hash_enc.length);
2303 old_nt_hash_enc = data_blob_null;
2304 }
2305 } else if (strequal(request, "new-lm-password-blob")) {
2306 new_lm_pswd = strhex_to_data_blob(NULL, parameter);
2307 if (new_lm_pswd.length != 516) {
2308 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2309 "(got %d bytes, expected 516)\n.\n",
2310 parameter,
2311 (int)new_lm_pswd.length);
2312 new_lm_pswd = data_blob_null;
2313 }
2314 }
2315 else if (strequal(request, "old-lm-hash-blob")) {
2316 old_lm_hash_enc = strhex_to_data_blob(NULL, parameter);
2317 if (old_lm_hash_enc.length != 16)
2318 {
2319 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2320 "(got %d bytes, expected 16)\n.\n",
2321 parameter,
2322 (int)old_lm_hash_enc.length);
2323 old_lm_hash_enc = data_blob_null;
2324 }
2325 } else if (strequal(request, "nt-domain")) {
2326 domain = smb_xstrdup(parameter);
2327 } else if(strequal(request, "username")) {
2328 username = smb_xstrdup(parameter);
2329 } else if(strequal(request, "full-username")) {
2330 username = smb_xstrdup(parameter);
2331 } else if(strequal(request, "new-password")) {
2332 newpswd = smb_xstrdup(parameter);
2333 } else if (strequal(request, "old-password")) {
2334 oldpswd = smb_xstrdup(parameter);
2335 } else {
2336 x_fprintf(x_stdout, "Error: Unknown request %s\n.\n", request);
2337 }
2338 }
2339
2340 static void manage_squid_request(struct ntlm_auth_state *state,
2341 stdio_helper_function fn)
2342 {
2343 char *buf;
2344 char tmp[INITIAL_BUFFER_SIZE+1];
2345 int length, buf_size = 0;
2346 char *c;
2347
2348 buf = talloc_strdup(state->mem_ctx, "");
2349 if (!buf) {
2350 DEBUG(0, ("Failed to allocate input buffer.\n"));
2351 x_fprintf(x_stderr, "ERR\n");
2352 exit(1);
2353 }
2354
2355 do {
2356
2357 /* this is not a typo - x_fgets doesn't work too well under
2358 * squid */
2359 if (fgets(tmp, sizeof(tmp)-1, stdin) == NULL) {
2360 if (ferror(stdin)) {
2361 DEBUG(1, ("fgets() failed! dying..... errno=%d "
2362 "(%s)\n", ferror(stdin),
2363 strerror(ferror(stdin))));
2364
2365 exit(1);
2366 }
2367 exit(0);
2368 }
2369
2370 buf = talloc_strdup_append_buffer(buf, tmp);
2371 buf_size += INITIAL_BUFFER_SIZE;
2372
2373 if (buf_size > MAX_BUFFER_SIZE) {
2374 DEBUG(2, ("Oversized message\n"));
2375 x_fprintf(x_stderr, "ERR\n");
2376 talloc_free(buf);
2377 return;
2378 }
2379
2380 c = strchr(buf, '\n');
2381 } while (c == NULL);
2382
2383 *c = '\0';
2384 length = c-buf;
2385
2386 DEBUG(10, ("Got '%s' from squid (length: %d).\n",buf,length));
2387
2388 if (buf[0] == '\0') {
2389 DEBUG(2, ("Invalid Request\n"));
2390 x_fprintf(x_stderr, "ERR\n");
2391 talloc_free(buf);
2392 return;
2393 }
2394
2395 fn(state, buf, length);
2396 talloc_free(buf);
2397 }
2398
2399
2400 static void squid_stream(enum stdio_helper_mode stdio_mode, stdio_helper_function fn) {
2401 TALLOC_CTX *mem_ctx;
2402 struct ntlm_auth_state *state;
2403
2404 /* initialize FDescs */
2405 x_setbuf(x_stdout, NULL);
2406 x_setbuf(x_stderr, NULL);
2407
2408 mem_ctx = talloc_init("ntlm_auth");
2409 if (!mem_ctx) {
2410 DEBUG(0, ("squid_stream: Failed to create talloc context\n"));
2411 x_fprintf(x_stderr, "ERR\n");
2412 exit(1);
2413 }
2414
2415 state = talloc_zero(mem_ctx, struct ntlm_auth_state);
2416 if (!state) {
2417 DEBUG(0, ("squid_stream: Failed to talloc ntlm_auth_state\n"));
2418 x_fprintf(x_stderr, "ERR\n");
2419 exit(1);
2420 }
2421
2422 state->mem_ctx = mem_ctx;
2423 state->helper_mode = stdio_mode;
2424
2425 while(1) {
2426 TALLOC_CTX *frame = talloc_stackframe();
2427 manage_squid_request(state, fn);
2428 TALLOC_FREE(frame);
2429 }
2430 }
2431
2432
2433 /* Authenticate a user with a challenge/response */
2434
2435 static bool check_auth_crap(void)
2436 {
2437 NTSTATUS nt_status;
2438 uint32 flags = 0;
2439 char lm_key[8];
2440 char user_session_key[16];
2441 char *hex_lm_key;
2442 char *hex_user_session_key;
2443 char *error_string;
2444 static uint8 zeros[16];
2445
2446 x_setbuf(x_stdout, NULL);
2447
2448 if (request_lm_key)
2449 flags |= WBFLAG_PAM_LMKEY;
2450
2451 if (request_user_session_key)
2452 flags |= WBFLAG_PAM_USER_SESSION_KEY;
2453
2454 flags |= WBFLAG_PAM_NT_STATUS_SQUASH;
2455
2456 nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
2457 opt_workstation,
2458 &opt_challenge,
2459 &opt_lm_response,
2460 &opt_nt_response,
2461 flags,
2462 (unsigned char *)lm_key,
2463 (unsigned char *)user_session_key,
2464 &error_string, NULL);
2465
2466 if (!NT_STATUS_IS_OK(nt_status)) {
2467 x_fprintf(x_stdout, "%s (0x%x)\n",
2468 error_string,
2469 NT_STATUS_V(nt_status));
2470 SAFE_FREE(error_string);
2471 return False;
2472 }
2473
2474 if (request_lm_key
2475 && (memcmp(zeros, lm_key,
2476 sizeof(lm_key)) != 0)) {
2477 hex_lm_key = hex_encode_talloc(talloc_tos(), (const unsigned char *)lm_key,
2478 sizeof(lm_key));
2479 x_fprintf(x_stdout, "LM_KEY: %s\n", hex_lm_key);
2480 TALLOC_FREE(hex_lm_key);
2481 }
2482 if (request_user_session_key
2483 && (memcmp(zeros, user_session_key,
2484 sizeof(user_session_key)) != 0)) {
2485 hex_user_session_key = hex_encode_talloc(talloc_tos(), (const unsigned char *)user_session_key,
2486 sizeof(user_session_key));
2487 x_fprintf(x_stdout, "NT_KEY: %s\n", hex_user_session_key);
2488 TALLOC_FREE(hex_user_session_key);
2489 }
2490
2491 return True;
2492 }
2493
2494 /* Main program */
2495
2496 enum {
2497 OPT_USERNAME = 1000,
2498 OPT_DOMAIN,
2499 OPT_WORKSTATION,
2500 OPT_CHALLENGE,
2501 OPT_RESPONSE,
2502 OPT_LM,
2503 OPT_NT,
2504 OPT_PASSWORD,
2505 OPT_LM_KEY,
2506 OPT_USER_SESSION_KEY,
2507 OPT_DIAGNOSTICS,
2508 OPT_REQUIRE_MEMBERSHIP,
2509 OPT_USE_CACHED_CREDS,
2510 OPT_PAM_WINBIND_CONF
2511 };
2512
2513 int main(int argc, const char **argv)
2514 {
2515 TALLOC_CTX *frame = talloc_stackframe();
2516 int opt;
2517 static const char *helper_protocol;
2518 static int diagnostics;
2519
2520 static const char *hex_challenge;
2521 static const char *hex_lm_response;
2522 static const char *hex_nt_response;
2523
2524 poptContext pc;
2525
2526 /* NOTE: DO NOT change this interface without considering the implications!
2527 This is an external interface, which other programs will use to interact
2528 with this helper.
2529 */
2530
2531 /* We do not use single-letter command abbreviations, because they harm future
2532 interface stability. */
2533
2534 struct poptOption long_options[] = {
2535 POPT_AUTOHELP
2536 { "helper-protocol", 0, POPT_ARG_STRING, &helper_protocol, OPT_DOMAIN, "operate as a stdio-based helper", "helper protocol to use"},
2537 { "username", 0, POPT_ARG_STRING, &opt_username, OPT_USERNAME, "username"},
2538 { "domain", 0, POPT_ARG_STRING, &opt_domain, OPT_DOMAIN, "domain name"},
2539 { "workstation", 0, POPT_ARG_STRING, &opt_workstation, OPT_WORKSTATION, "workstation"},
2540 { "challenge", 0, POPT_ARG_STRING, &hex_challenge, OPT_CHALLENGE, "challenge (HEX encoded)"},
2541 { "lm-response", 0, POPT_ARG_STRING, &hex_lm_response, OPT_LM, "LM Response to the challenge (HEX encoded)"},
2542 { "nt-response", 0, POPT_ARG_STRING, &hex_nt_response, OPT_NT, "NT or NTLMv2 Response to the challenge (HEX encoded)"},
2543 { "password", 0, POPT_ARG_STRING, &opt_password, OPT_PASSWORD, "User's plaintext password"},
2544 { "request-lm-key", 0, POPT_ARG_NONE, &request_lm_key, OPT_LM_KEY, "Retrieve LM session key"},
2545 { "request-nt-key", 0, POPT_ARG_NONE, &request_user_session_key, OPT_USER_SESSION_KEY, "Retrieve User (NT) session key"},
2546 { "use-cached-creds", 0, POPT_ARG_NONE, &use_cached_creds, OPT_USE_CACHED_CREDS, "Use cached credentials if no password is given"},
2547 { "diagnostics", 0, POPT_ARG_NONE, &diagnostics,
2548 OPT_DIAGNOSTICS,
2549 "Perform diagnostics on the authentication chain"},
2550 { "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" },
2551 { "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" },
2552 POPT_COMMON_CONFIGFILE
2553 POPT_COMMON_VERSION
2554 POPT_TABLEEND
2555 };
2556
2557 /* Samba client initialisation */
2558 load_case_tables();
2559
2560 dbf = x_stderr;
2561
2562 /* Parse options */
2563
2564 pc = poptGetContext("ntlm_auth", argc, argv, long_options, 0);
2565
2566 /* Parse command line options */
2567
2568 if (argc == 1) {
2569 poptPrintHelp(pc, stderr, 0);
2570 return 1;
2571 }
2572
2573 while((opt = poptGetNextOpt(pc)) != -1) {
2574 /* Get generic config options like --configfile */
2575 }
2576
2577 poptFreeContext(pc);
2578
2579 if (!lp_load(get_dyn_CONFIGFILE(), True, False, False, True)) {
2580 d_fprintf(stderr, "ntlm_auth: error opening config file %s. Error was %s\n",
2581 get_dyn_CONFIGFILE(), strerror(errno));
2582 exit(1);
2583 }
2584
2585 pc = poptGetContext(NULL, argc, (const char **)argv, long_options,
2586 POPT_CONTEXT_KEEP_FIRST);
2587
2588 while((opt = poptGetNextOpt(pc)) != -1) {
2589 switch (opt) {
2590 case OPT_CHALLENGE:
2591 opt_challenge = strhex_to_data_blob(NULL, hex_challenge);
2592 if (opt_challenge.length != 8) {
2593 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
2594 hex_challenge,
2595 (int)opt_challenge.length);
2596 exit(1);
2597 }
2598 break;
2599 case OPT_LM:
2600 opt_lm_response = strhex_to_data_blob(NULL, hex_lm_response);
2601 if (opt_lm_response.length != 24) {
2602 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
2603 hex_lm_response,
2604 (int)opt_lm_response.length);
2605 exit(1);
2606 }
2607 break;
2608
2609 case OPT_NT:
2610 opt_nt_response = strhex_to_data_blob(NULL, hex_nt_response);
2611 if (opt_nt_response.length < 24) {
2612 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
2613 hex_nt_response,
2614 (int)opt_nt_response.length);
2615 exit(1);
2616 }
2617 break;
2618
2619 case OPT_REQUIRE_MEMBERSHIP:
2620 if (StrnCaseCmp("S-", require_membership_of, 2) == 0) {
2621 require_membership_of_sid = require_membership_of;
2622 }
2623 break;
2624 }
2625 }
2626
2627 if (opt_username) {
2628 char *domain = SMB_STRDUP(opt_username);
2629 char *p = strchr_m(domain, *lp_winbind_separator());
2630 if (p) {
2631 opt_username = p+1;
2632 *p = '\0';
2633 if (opt_domain && !strequal(opt_domain, domain)) {
2634 x_fprintf(x_stderr, "Domain specified in username (%s) "
2635 "doesn't match specified domain (%s)!\n\n",
2636 domain, opt_domain);
2637 poptPrintHelp(pc, stderr, 0);
2638 exit(1);
2639 }
2640 opt_domain = domain;
2641 } else {
2642 SAFE_FREE(domain);
2643 }
2644 }
2645
2646 /* Note: if opt_domain is "" then send no domain */
2647 if (opt_domain == NULL) {
2648 opt_domain = get_winbind_domain();
2649 }
2650
2651 if (opt_workstation == NULL) {
2652 opt_workstation = "";
2653 }
2654
2655 if (helper_protocol) {
2656 int i;
2657 for (i=0; i<NUM_HELPER_MODES; i++) {
2658 if (strcmp(helper_protocol, stdio_helper_protocols[i].name) == 0) {
2659 squid_stream(stdio_helper_protocols[i].mode, stdio_helper_protocols[i].fn);
2660 exit(0);
2661 }
2662 }
2663 x_fprintf(x_stderr, "unknown helper protocol [%s]\n\nValid helper protools:\n\n", helper_protocol);
2664
2665 for (i=0; i<NUM_HELPER_MODES; i++) {
2666 x_fprintf(x_stderr, "%s\n", stdio_helper_protocols[i].name);
2667 }
2668
2669 exit(1);
2670 }
2671
2672 if (!opt_username || !*opt_username) {
2673 x_fprintf(x_stderr, "username must be specified!\n\n");
2674 poptPrintHelp(pc, stderr, 0);
2675 exit(1);
2676 }
2677
2678 if (opt_challenge.length) {
2679 if (!check_auth_crap()) {
2680 exit(1);
2681 }
2682 exit(0);
2683 }
2684
2685 if (!opt_password) {
2686 opt_password = getpass("password: ");
2687 }
2688
2689 if (diagnostics) {
2690 if (!diagnose_ntlm_auth()) {
2691 return 1;
2692 }
2693 } else {
2694 fstring user;
2695
2696 fstr_sprintf(user, "%s%c%s", opt_domain, winbind_separator(), opt_username);
2697 if (!check_plaintext_auth(user, opt_password, True)) {
2698 return 1;
2699 }
2700 }
2701
2702 /* Exit code */
2703
2704 poptFreeContext(pc);
2705 TALLOC_FREE(frame);
2706 return 0;
2707 }
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