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build do not add -no-undefined on openbsd
[Samba.git] / source3 / utils / ntlm_auth.c
blob43af0fd638c457333a6f65a695c88db942537590
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 char *spnego_mech;
86 char *spnego_mech_oid;
87 bool have_session_key;
88 DATA_BLOB session_key;
89 DATA_BLOB initial_message;
90 };
91
92 typedef void (*stdio_helper_function)(struct ntlm_auth_state *state, char *buf,
93 int length);
94
95 static void manage_squid_basic_request (struct ntlm_auth_state *state,
96 char *buf, int length);
97
98 static void manage_squid_ntlmssp_request (struct ntlm_auth_state *state,
99 char *buf, int length);
100
101 static void manage_client_ntlmssp_request (struct ntlm_auth_state *state,
102 char *buf, int length);
103
104 static void manage_gss_spnego_request (struct ntlm_auth_state *state,
105 char *buf, int length);
106
107 static void manage_gss_spnego_client_request (struct ntlm_auth_state *state,
108 char *buf, int length);
109
110 static void manage_ntlm_server_1_request (struct ntlm_auth_state *state,
111 char *buf, int length);
112
113 static void manage_ntlm_change_password_1_request(struct ntlm_auth_state *state,
114 char *buf, int length);
115
116 static const struct {
117 enum stdio_helper_mode mode;
118 const char *name;
119 stdio_helper_function fn;
120 } stdio_helper_protocols[] = {
121 { SQUID_2_4_BASIC, "squid-2.4-basic", manage_squid_basic_request},
122 { SQUID_2_5_BASIC, "squid-2.5-basic", manage_squid_basic_request},
123 { SQUID_2_5_NTLMSSP, "squid-2.5-ntlmssp", manage_squid_ntlmssp_request},
124 { NTLMSSP_CLIENT_1, "ntlmssp-client-1", manage_client_ntlmssp_request},
125 { GSS_SPNEGO, "gss-spnego", manage_gss_spnego_request},
126 { GSS_SPNEGO_CLIENT, "gss-spnego-client", manage_gss_spnego_client_request},
127 { NTLM_SERVER_1, "ntlm-server-1", manage_ntlm_server_1_request},
128 { NTLM_CHANGE_PASSWORD_1, "ntlm-change-password-1", manage_ntlm_change_password_1_request},
129 { NUM_HELPER_MODES, NULL, NULL}
130 };
131
132 const char *opt_username;
133 const char *opt_domain;
134 const char *opt_workstation;
135 const char *opt_password;
136 static DATA_BLOB opt_challenge;
137 static DATA_BLOB opt_lm_response;
138 static DATA_BLOB opt_nt_response;
139 static int request_lm_key;
140 static int request_user_session_key;
141 static int use_cached_creds;
142
143 static const char *require_membership_of;
144 static const char *require_membership_of_sid;
145 static const char *opt_pam_winbind_conf;
146
147 static char winbind_separator(void)
148 {
149 struct winbindd_response response;
150 static bool got_sep;
151 static char sep;
152
153 if (got_sep)
154 return sep;
155
156 ZERO_STRUCT(response);
157
158 /* Send off request */
159
160 if (winbindd_request_response(WINBINDD_INFO, NULL, &response) !=
161 NSS_STATUS_SUCCESS) {
162 d_printf("could not obtain winbind separator!\n");
163 return *lp_winbind_separator();
164 }
165
166 sep = response.data.info.winbind_separator;
167 got_sep = True;
168
169 if (!sep) {
170 d_printf("winbind separator was NULL!\n");
171 return *lp_winbind_separator();
172 }
173
174 return sep;
175 }
176
177 const char *get_winbind_domain(void)
178 {
179 struct winbindd_response response;
180
181 static fstring winbind_domain;
182 if (*winbind_domain) {
183 return winbind_domain;
184 }
185
186 ZERO_STRUCT(response);
187
188 /* Send off request */
189
190 if (winbindd_request_response(WINBINDD_DOMAIN_NAME, NULL, &response) !=
191 NSS_STATUS_SUCCESS) {
192 DEBUG(0, ("could not obtain winbind domain name!\n"));
193 return lp_workgroup();
194 }
195
196 fstrcpy(winbind_domain, response.data.domain_name);
197
198 return winbind_domain;
199
200 }
201
202 const char *get_winbind_netbios_name(void)
203 {
204 struct winbindd_response response;
205
206 static fstring winbind_netbios_name;
207
208 if (*winbind_netbios_name) {
209 return winbind_netbios_name;
210 }
211
212 ZERO_STRUCT(response);
213
214 /* Send off request */
215
216 if (winbindd_request_response(WINBINDD_NETBIOS_NAME, NULL, &response) !=
217 NSS_STATUS_SUCCESS) {
218 DEBUG(0, ("could not obtain winbind netbios name!\n"));
219 return global_myname();
220 }
221
222 fstrcpy(winbind_netbios_name, response.data.netbios_name);
223
224 return winbind_netbios_name;
225
226 }
227
228 DATA_BLOB get_challenge(void)
229 {
230 static DATA_BLOB chal;
231 if (opt_challenge.length)
232 return opt_challenge;
233
234 chal = data_blob(NULL, 8);
235
236 generate_random_buffer(chal.data, chal.length);
237 return chal;
238 }
239
240 /* Copy of parse_domain_user from winbindd_util.c. Parse a string of the
241 form DOMAIN/user into a domain and a user */
242
243 static bool parse_ntlm_auth_domain_user(const char *domuser, fstring domain,
244 fstring user)
245 {
246
247 char *p = strchr(domuser,winbind_separator());
248
249 if (!p) {
250 return False;
251 }
252
253 fstrcpy(user, p+1);
254 fstrcpy(domain, domuser);
255 domain[PTR_DIFF(p, domuser)] = 0;
256 strupper_m(domain);
257
258 return True;
259 }
260
261 static bool get_require_membership_sid(void) {
262 struct winbindd_request request;
263 struct winbindd_response response;
264
265 if (!require_membership_of) {
266 return True;
267 }
268
269 if (require_membership_of_sid) {
270 return True;
271 }
272
273 /* Otherwise, ask winbindd for the name->sid request */
274
275 ZERO_STRUCT(request);
276 ZERO_STRUCT(response);
277
278 if (!parse_ntlm_auth_domain_user(require_membership_of,
279 request.data.name.dom_name,
280 request.data.name.name)) {
281 DEBUG(0, ("Could not parse %s into seperate domain/name parts!\n",
282 require_membership_of));
283 return False;
284 }
285
286 if (winbindd_request_response(WINBINDD_LOOKUPNAME, &request, &response) !=
287 NSS_STATUS_SUCCESS) {
288 DEBUG(0, ("Winbindd lookupname failed to resolve %s into a SID!\n",
289 require_membership_of));
290 return False;
291 }
292
293 require_membership_of_sid = SMB_STRDUP(response.data.sid.sid);
294
295 if (require_membership_of_sid)
296 return True;
297
298 return False;
299 }
300
301 /*
302 * Get some configuration from pam_winbind.conf to see if we
303 * need to contact trusted domain
304 */
305
306 int get_pam_winbind_config()
307 {
308 int ctrl = 0;
309 dictionary *d = NULL;
310
311 if (!opt_pam_winbind_conf || !*opt_pam_winbind_conf) {
312 opt_pam_winbind_conf = PAM_WINBIND_CONFIG_FILE;
313 }
314
315 d = iniparser_load(CONST_DISCARD(char *, opt_pam_winbind_conf));
316
317 if (!d) {
318 return 0;
319 }
320
321 if (iniparser_getboolean(d, CONST_DISCARD(char *, "global:krb5_auth"), false)) {
322 ctrl |= WINBIND_KRB5_AUTH;
323 }
324
325 iniparser_freedict(d);
326
327 return ctrl;
328 }
329
330 /* Authenticate a user with a plaintext password */
331
332 static bool check_plaintext_auth(const char *user, const char *pass,
333 bool stdout_diagnostics)
334 {
335 struct winbindd_request request;
336 struct winbindd_response response;
337 NSS_STATUS result;
338
339 if (!get_require_membership_sid()) {
340 return False;
341 }
342
343 /* Send off request */
344
345 ZERO_STRUCT(request);
346 ZERO_STRUCT(response);
347
348 fstrcpy(request.data.auth.user, user);
349 fstrcpy(request.data.auth.pass, pass);
350 if (require_membership_of_sid) {
351 strlcpy(request.data.auth.require_membership_of_sid,
352 require_membership_of_sid,
353 sizeof(request.data.auth.require_membership_of_sid));
354 }
355
356 result = winbindd_request_response(WINBINDD_PAM_AUTH, &request, &response);
357
358 /* Display response */
359
360 if (stdout_diagnostics) {
361 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
362 d_printf("Reading winbind reply failed! (0x01)\n");
363 }
364
365 d_printf("%s: %s (0x%x)\n",
366 response.data.auth.nt_status_string,
367 response.data.auth.error_string,
368 response.data.auth.nt_status);
369 } else {
370 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
371 DEBUG(1, ("Reading winbind reply failed! (0x01)\n"));
372 }
373
374 DEBUG(3, ("%s: %s (0x%x)\n",
375 response.data.auth.nt_status_string,
376 response.data.auth.error_string,
377 response.data.auth.nt_status));
378 }
379
380 return (result == NSS_STATUS_SUCCESS);
381 }
382
383 /* authenticate a user with an encrypted username/password */
384
385 NTSTATUS contact_winbind_auth_crap(const char *username,
386 const char *domain,
387 const char *workstation,
388 const DATA_BLOB *challenge,
389 const DATA_BLOB *lm_response,
390 const DATA_BLOB *nt_response,
391 uint32 flags,
392 uint8 lm_key[8],
393 uint8 user_session_key[16],
394 char **error_string,
395 char **unix_name)
396 {
397 NTSTATUS nt_status;
398 NSS_STATUS result;
399 struct winbindd_request request;
400 struct winbindd_response response;
401
402 if (!get_require_membership_sid()) {
403 return NT_STATUS_INVALID_PARAMETER;
404 }
405
406 ZERO_STRUCT(request);
407 ZERO_STRUCT(response);
408
409 request.flags = flags;
410
411 request.data.auth_crap.logon_parameters = MSV1_0_ALLOW_WORKSTATION_TRUST_ACCOUNT | MSV1_0_ALLOW_SERVER_TRUST_ACCOUNT;
412
413 if (require_membership_of_sid)
414 fstrcpy(request.data.auth_crap.require_membership_of_sid, require_membership_of_sid);
415
416 fstrcpy(request.data.auth_crap.user, username);
417 fstrcpy(request.data.auth_crap.domain, domain);
418
419 fstrcpy(request.data.auth_crap.workstation,
420 workstation);
421
422 memcpy(request.data.auth_crap.chal, challenge->data, MIN(challenge->length, 8));
423
424 if (lm_response && lm_response->length) {
425 memcpy(request.data.auth_crap.lm_resp,
426 lm_response->data,
427 MIN(lm_response->length, sizeof(request.data.auth_crap.lm_resp)));
428 request.data.auth_crap.lm_resp_len = lm_response->length;
429 }
430
431 if (nt_response && nt_response->length) {
432 if (nt_response->length > sizeof(request.data.auth_crap.nt_resp)) {
433 request.flags = request.flags | WBFLAG_BIG_NTLMV2_BLOB;
434 request.extra_len = nt_response->length;
435 request.extra_data.data = SMB_MALLOC_ARRAY(char, request.extra_len);
436 if (request.extra_data.data == NULL) {
437 return NT_STATUS_NO_MEMORY;
438 }
439 memcpy(request.extra_data.data, nt_response->data,
440 nt_response->length);
441
442 } else {
443 memcpy(request.data.auth_crap.nt_resp,
444 nt_response->data, nt_response->length);
445 }
446 request.data.auth_crap.nt_resp_len = nt_response->length;
447 }
448
449 result = winbindd_request_response(WINBINDD_PAM_AUTH_CRAP, &request, &response);
450 SAFE_FREE(request.extra_data.data);
451
452 /* Display response */
453
454 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
455 nt_status = NT_STATUS_UNSUCCESSFUL;
456 if (error_string)
457 *error_string = smb_xstrdup("Reading winbind reply failed!");
458 winbindd_free_response(&response);
459 return nt_status;
460 }
461
462 nt_status = (NT_STATUS(response.data.auth.nt_status));
463 if (!NT_STATUS_IS_OK(nt_status)) {
464 if (error_string)
465 *error_string = smb_xstrdup(response.data.auth.error_string);
466 winbindd_free_response(&response);
467 return nt_status;
468 }
469
470 if ((flags & WBFLAG_PAM_LMKEY) && lm_key) {
471 memcpy(lm_key, response.data.auth.first_8_lm_hash,
472 sizeof(response.data.auth.first_8_lm_hash));
473 }
474 if ((flags & WBFLAG_PAM_USER_SESSION_KEY) && user_session_key) {
475 memcpy(user_session_key, response.data.auth.user_session_key,
476 sizeof(response.data.auth.user_session_key));
477 }
478
479 if (flags & WBFLAG_PAM_UNIX_NAME) {
480 *unix_name = SMB_STRDUP(response.data.auth.unix_username);
481 if (!*unix_name) {
482 winbindd_free_response(&response);
483 return NT_STATUS_NO_MEMORY;
484 }
485 }
486
487 winbindd_free_response(&response);
488 return nt_status;
489 }
490
491 /* contact server to change user password using auth crap */
492 static NTSTATUS contact_winbind_change_pswd_auth_crap(const char *username,
493 const char *domain,
494 const DATA_BLOB new_nt_pswd,
495 const DATA_BLOB old_nt_hash_enc,
496 const DATA_BLOB new_lm_pswd,
497 const DATA_BLOB old_lm_hash_enc,
498 char **error_string)
499 {
500 NTSTATUS nt_status;
501 NSS_STATUS result;
502 struct winbindd_request request;
503 struct winbindd_response response;
504
505 if (!get_require_membership_sid())
506 {
507 if(error_string)
508 *error_string = smb_xstrdup("Can't get membership sid.");
509 return NT_STATUS_INVALID_PARAMETER;
510 }
511
512 ZERO_STRUCT(request);
513 ZERO_STRUCT(response);
514
515 if(username != NULL)
516 fstrcpy(request.data.chng_pswd_auth_crap.user, username);
517 if(domain != NULL)
518 fstrcpy(request.data.chng_pswd_auth_crap.domain,domain);
519
520 if(new_nt_pswd.length)
521 {
522 memcpy(request.data.chng_pswd_auth_crap.new_nt_pswd, new_nt_pswd.data, sizeof(request.data.chng_pswd_auth_crap.new_nt_pswd));
523 request.data.chng_pswd_auth_crap.new_nt_pswd_len = new_nt_pswd.length;
524 }
525
526 if(old_nt_hash_enc.length)
527 {
528 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));
529 request.data.chng_pswd_auth_crap.old_nt_hash_enc_len = old_nt_hash_enc.length;
530 }
531
532 if(new_lm_pswd.length)
533 {
534 memcpy(request.data.chng_pswd_auth_crap.new_lm_pswd, new_lm_pswd.data, sizeof(request.data.chng_pswd_auth_crap.new_lm_pswd));
535 request.data.chng_pswd_auth_crap.new_lm_pswd_len = new_lm_pswd.length;
536 }
537
538 if(old_lm_hash_enc.length)
539 {
540 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));
541 request.data.chng_pswd_auth_crap.old_lm_hash_enc_len = old_lm_hash_enc.length;
542 }
543
544 result = winbindd_request_response(WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP, &request, &response);
545
546 /* Display response */
547
548 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0))
549 {
550 nt_status = NT_STATUS_UNSUCCESSFUL;
551 if (error_string)
552 *error_string = smb_xstrdup("Reading winbind reply failed!");
553 winbindd_free_response(&response);
554 return nt_status;
555 }
556
557 nt_status = (NT_STATUS(response.data.auth.nt_status));
558 if (!NT_STATUS_IS_OK(nt_status))
559 {
560 if (error_string)
561 *error_string = smb_xstrdup(response.data.auth.error_string);
562 winbindd_free_response(&response);
563 return nt_status;
564 }
565
566 winbindd_free_response(&response);
567
568 return nt_status;
569 }
570
571 static NTSTATUS winbind_pw_check(struct ntlmssp_state *ntlmssp_state, TALLOC_CTX *mem_ctx,
572 DATA_BLOB *user_session_key, DATA_BLOB *lm_session_key)
573 {
574 static const char zeros[16] = { 0, };
575 NTSTATUS nt_status;
576 char *error_string = NULL;
577 uint8 lm_key[8];
578 uint8 user_sess_key[16];
579 char *unix_name = NULL;
580
581 nt_status = contact_winbind_auth_crap(ntlmssp_state->user, ntlmssp_state->domain,
582 ntlmssp_state->client.netbios_name,
583 &ntlmssp_state->chal,
584 &ntlmssp_state->lm_resp,
585 &ntlmssp_state->nt_resp,
586 WBFLAG_PAM_LMKEY | WBFLAG_PAM_USER_SESSION_KEY | WBFLAG_PAM_UNIX_NAME,
587 lm_key, user_sess_key,
588 &error_string, &unix_name);
589
590 if (NT_STATUS_IS_OK(nt_status)) {
591 if (memcmp(lm_key, zeros, 8) != 0) {
592 *lm_session_key = data_blob_talloc(mem_ctx, NULL, 16);
593 memcpy(lm_session_key->data, lm_key, 8);
594 memset(lm_session_key->data+8, '\0', 8);
595 }
596
597 if (memcmp(user_sess_key, zeros, 16) != 0) {
598 *user_session_key = data_blob_talloc(mem_ctx, user_sess_key, 16);
599 }
600 ntlmssp_state->callback_private = talloc_strdup(ntlmssp_state,
601 unix_name);
602 } else {
603 DEBUG(NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED) ? 0 : 3,
604 ("Login for user [%s]\\[%s]@[%s] failed due to [%s]\n",
605 ntlmssp_state->domain, ntlmssp_state->user,
606 ntlmssp_state->client.netbios_name,
607 error_string ? error_string : "unknown error (NULL)"));
608 ntlmssp_state->callback_private = NULL;
609 }
610
611 SAFE_FREE(error_string);
612 SAFE_FREE(unix_name);
613 return nt_status;
614 }
615
616 static NTSTATUS local_pw_check(struct ntlmssp_state *ntlmssp_state, TALLOC_CTX *mem_ctx,
617 DATA_BLOB *user_session_key, DATA_BLOB *lm_session_key)
618 {
619 NTSTATUS nt_status;
620 struct samr_Password lm_pw, nt_pw;
621
622 nt_lm_owf_gen (opt_password, nt_pw.hash, lm_pw.hash);
623
624 nt_status = ntlm_password_check(mem_ctx,
625 true, true, 0,
626 &ntlmssp_state->chal,
627 &ntlmssp_state->lm_resp,
628 &ntlmssp_state->nt_resp,
629 ntlmssp_state->user,
630 ntlmssp_state->user,
631 ntlmssp_state->domain,
632 &lm_pw, &nt_pw, user_session_key, lm_session_key);
633
634 if (NT_STATUS_IS_OK(nt_status)) {
635 ntlmssp_state->callback_private = talloc_asprintf(ntlmssp_state,
636 "%s%c%s", ntlmssp_state->domain,
637 *lp_winbind_separator(),
638 ntlmssp_state->user);
639 } else {
640 DEBUG(3, ("Login for user [%s]\\[%s]@[%s] failed due to [%s]\n",
641 ntlmssp_state->domain, ntlmssp_state->user,
642 ntlmssp_state->client.netbios_name,
643 nt_errstr(nt_status)));
644 ntlmssp_state->callback_private = NULL;
645 }
646 return nt_status;
647 }
648
649 static NTSTATUS ntlm_auth_start_ntlmssp_client(struct ntlmssp_state **client_ntlmssp_state)
650 {
651 NTSTATUS status;
652 if ( (opt_username == NULL) || (opt_domain == NULL) ) {
653 status = NT_STATUS_UNSUCCESSFUL;
654 DEBUG(1, ("Need username and domain for NTLMSSP\n"));
655 return NT_STATUS_INVALID_PARAMETER;
656 }
657
658 status = ntlmssp_client_start(NULL,
659 global_myname(),
660 lp_workgroup(),
661 lp_client_ntlmv2_auth(),
662 client_ntlmssp_state);
663
664 if (!NT_STATUS_IS_OK(status)) {
665 DEBUG(1, ("Could not start NTLMSSP client: %s\n",
666 nt_errstr(status)));
667 TALLOC_FREE(*client_ntlmssp_state);
668 return status;
669 }
670
671 status = ntlmssp_set_username(*client_ntlmssp_state, opt_username);
672
673 if (!NT_STATUS_IS_OK(status)) {
674 DEBUG(1, ("Could not set username: %s\n",
675 nt_errstr(status)));
676 TALLOC_FREE(*client_ntlmssp_state);
677 return status;
678 }
679
680 status = ntlmssp_set_domain(*client_ntlmssp_state, opt_domain);
681
682 if (!NT_STATUS_IS_OK(status)) {
683 DEBUG(1, ("Could not set domain: %s\n",
684 nt_errstr(status)));
685 TALLOC_FREE(*client_ntlmssp_state);
686 return status;
687 }
688
689 if (opt_password) {
690 status = ntlmssp_set_password(*client_ntlmssp_state, opt_password);
691
692 if (!NT_STATUS_IS_OK(status)) {
693 DEBUG(1, ("Could not set password: %s\n",
694 nt_errstr(status)));
695 TALLOC_FREE(*client_ntlmssp_state);
696 return status;
697 }
698 }
699
700 return NT_STATUS_OK;
701 }
702
703 static NTSTATUS ntlm_auth_start_ntlmssp_server(struct ntlmssp_state **ntlmssp_state)
704 {
705 NTSTATUS status;
706 const char *netbios_name;
707 const char *netbios_domain;
708 const char *dns_name;
709 char *dns_domain;
710 bool is_standalone = false;
711
712 if (opt_password) {
713 netbios_name = global_myname();
714 netbios_domain = lp_workgroup();
715 } else {
716 netbios_name = get_winbind_netbios_name();
717 netbios_domain = get_winbind_domain();
718 }
719 /* This should be a 'netbios domain -> DNS domain' mapping */
720 dns_domain = get_mydnsdomname(talloc_tos());
721 if (dns_domain) {
722 strlower_m(dns_domain);
723 }
724 dns_name = get_mydnsfullname();
725
726 status = ntlmssp_server_start(NULL,
727 is_standalone,
728 netbios_name,
729 netbios_domain,
730 dns_name,
731 dns_domain,
732 ntlmssp_state);
733 if (!NT_STATUS_IS_OK(status)) {
734 DEBUG(1, ("Could not start NTLMSSP server: %s\n",
735 nt_errstr(status)));
736 return status;
737 }
738
739 /* Have we been given a local password, or should we ask winbind? */
740 if (opt_password) {
741 (*ntlmssp_state)->check_password = local_pw_check;
742 } else {
743 (*ntlmssp_state)->check_password = winbind_pw_check;
744 }
745 return NT_STATUS_OK;
746 }
747
748 /*******************************************************************
749 Used by firefox to drive NTLM auth to IIS servers.
750 *******************************************************************/
751
752 static NTSTATUS do_ccache_ntlm_auth(DATA_BLOB initial_msg, DATA_BLOB challenge_msg,
753 DATA_BLOB *reply)
754 {
755 struct winbindd_request wb_request;
756 struct winbindd_response wb_response;
757 int ctrl = 0;
758 NSS_STATUS result;
759
760 /* get winbindd to do the ntlmssp step on our behalf */
761 ZERO_STRUCT(wb_request);
762 ZERO_STRUCT(wb_response);
763
764 /*
765 * This is tricky here. If we set krb5_auth in pam_winbind.conf
766 * creds for users in trusted domain will be stored the winbindd
767 * child of the trusted domain. If we ask the primary domain for
768 * ntlm_ccache_auth, it will fail. So, we have to ask the trusted
769 * domain's child for ccache_ntlm_auth. that is to say, we have to
770 * set WBFLAG_PAM_CONTACT_TRUSTDOM in request.flags.
771 */
772 ctrl = get_pam_winbind_config();
773
774 if (ctrl | WINBIND_KRB5_AUTH) {
775 wb_request.flags |= WBFLAG_PAM_CONTACT_TRUSTDOM;
776 }
777
778 fstr_sprintf(wb_request.data.ccache_ntlm_auth.user,
779 "%s%c%s", opt_domain, winbind_separator(), opt_username);
780 wb_request.data.ccache_ntlm_auth.uid = geteuid();
781 wb_request.data.ccache_ntlm_auth.initial_blob_len = initial_msg.length;
782 wb_request.data.ccache_ntlm_auth.challenge_blob_len = challenge_msg.length;
783 wb_request.extra_len = initial_msg.length + challenge_msg.length;
784
785 if (wb_request.extra_len > 0) {
786 wb_request.extra_data.data = SMB_MALLOC_ARRAY(char, wb_request.extra_len);
787 if (wb_request.extra_data.data == NULL) {
788 return NT_STATUS_NO_MEMORY;
789 }
790
791 memcpy(wb_request.extra_data.data, initial_msg.data, initial_msg.length);
792 memcpy(wb_request.extra_data.data + initial_msg.length,
793 challenge_msg.data, challenge_msg.length);
794 }
795
796 result = winbindd_request_response(WINBINDD_CCACHE_NTLMAUTH, &wb_request, &wb_response);
797 SAFE_FREE(wb_request.extra_data.data);
798
799 if (result != NSS_STATUS_SUCCESS) {
800 winbindd_free_response(&wb_response);
801 return NT_STATUS_UNSUCCESSFUL;
802 }
803
804 if (reply) {
805 *reply = data_blob(wb_response.extra_data.data,
806 wb_response.data.ccache_ntlm_auth.auth_blob_len);
807 if (wb_response.data.ccache_ntlm_auth.auth_blob_len > 0 &&
808 reply->data == NULL) {
809 winbindd_free_response(&wb_response);
810 return NT_STATUS_NO_MEMORY;
811 }
812 }
813
814 winbindd_free_response(&wb_response);
815 return NT_STATUS_MORE_PROCESSING_REQUIRED;
816 }
817
818 static void manage_squid_ntlmssp_request_int(struct ntlm_auth_state *state,
819 char *buf, int length,
820 TALLOC_CTX *mem_ctx,
821 char **response)
822 {
823 DATA_BLOB request, reply;
824 NTSTATUS nt_status;
825
826 if (strlen(buf) < 2) {
827 DEBUG(1, ("NTLMSSP query [%s] invalid\n", buf));
828 *response = talloc_strdup(mem_ctx, "BH NTLMSSP query invalid");
829 return;
830 }
831
832 if (strlen(buf) > 3) {
833 if(strncmp(buf, "SF ", 3) == 0){
834 DEBUG(10, ("Setting flags to negotioate\n"));
835 TALLOC_FREE(state->want_feature_list);
836 state->want_feature_list = talloc_strdup(state->mem_ctx,
837 buf+3);
838 *response = talloc_strdup(mem_ctx, "OK");
839 return;
840 }
841 request = base64_decode_data_blob(buf + 3);
842 } else {
843 request = data_blob_null;
844 }
845
846 if ((strncmp(buf, "PW ", 3) == 0)) {
847 /* The calling application wants us to use a local password
848 * (rather than winbindd) */
849
850 opt_password = SMB_STRNDUP((const char *)request.data,
851 request.length);
852
853 if (opt_password == NULL) {
854 DEBUG(1, ("Out of memory\n"));
855 *response = talloc_strdup(mem_ctx, "BH Out of memory");
856 data_blob_free(&request);
857 return;
858 }
859
860 *response = talloc_strdup(mem_ctx, "OK");
861 data_blob_free(&request);
862 return;
863 }
864
865 if (strncmp(buf, "YR", 2) == 0) {
866 TALLOC_FREE(state->ntlmssp_state);
867 state->svr_state = SERVER_INITIAL;
868 } else if (strncmp(buf, "KK", 2) == 0) {
869 /* No special preprocessing required */
870 } else if (strncmp(buf, "GF", 2) == 0) {
871 DEBUG(10, ("Requested negotiated NTLMSSP flags\n"));
872
873 if (state->svr_state == SERVER_FINISHED) {
874 *response = talloc_asprintf(mem_ctx, "GF 0x%08x",
875 state->neg_flags);
876 }
877 else {
878 *response = talloc_strdup(mem_ctx, "BH\n");
879 }
880 data_blob_free(&request);
881 return;
882 } else if (strncmp(buf, "GK", 2) == 0) {
883 DEBUG(10, ("Requested NTLMSSP session key\n"));
884 if(state->have_session_key) {
885 char *key64 = base64_encode_data_blob(state->mem_ctx,
886 state->session_key);
887 *response = talloc_asprintf(mem_ctx, "GK %s",
888 key64 ? key64 : "<NULL>");
889 TALLOC_FREE(key64);
890 } else {
891 *response = talloc_strdup(mem_ctx, "BH");
892 }
893
894 data_blob_free(&request);
895 return;
896 } else {
897 DEBUG(1, ("NTLMSSP query [%s] invalid\n", buf));
898 *response = talloc_strdup(mem_ctx, "BH NTLMSSP query invalid");
899 return;
900 }
901
902 if (!state->ntlmssp_state) {
903 nt_status = ntlm_auth_start_ntlmssp_server(
904 &state->ntlmssp_state);
905 if (!NT_STATUS_IS_OK(nt_status)) {
906 *response = talloc_asprintf(
907 mem_ctx, "BH %s", nt_errstr(nt_status));
908 return;
909 }
910 ntlmssp_want_feature_list(state->ntlmssp_state,
911 state->want_feature_list);
912 }
913
914 DEBUG(10, ("got NTLMSSP packet:\n"));
915 dump_data(10, request.data, request.length);
916
917 nt_status = ntlmssp_update(state->ntlmssp_state, request, &reply);
918
919 if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
920 char *reply_base64 = base64_encode_data_blob(state->mem_ctx,
921 reply);
922 *response = talloc_asprintf(mem_ctx, "TT %s", reply_base64);
923 TALLOC_FREE(reply_base64);
924 data_blob_free(&reply);
925 state->svr_state = SERVER_CHALLENGE;
926 DEBUG(10, ("NTLMSSP challenge\n"));
927 } else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED)) {
928 *response = talloc_asprintf(mem_ctx, "BH %s",
929 nt_errstr(nt_status));
930 DEBUG(0, ("NTLMSSP BH: %s\n", nt_errstr(nt_status)));
931
932 TALLOC_FREE(state->ntlmssp_state);
933 } else if (!NT_STATUS_IS_OK(nt_status)) {
934 *response = talloc_asprintf(mem_ctx, "NA %s",
935 nt_errstr(nt_status));
936 DEBUG(10, ("NTLMSSP %s\n", nt_errstr(nt_status)));
937 } else {
938 *response = talloc_asprintf(
939 mem_ctx, "AF %s",
940 (char *)state->ntlmssp_state->callback_private);
941 DEBUG(10, ("NTLMSSP OK!\n"));
942
943 if(state->have_session_key)
944 data_blob_free(&state->session_key);
945 state->session_key = data_blob(
946 state->ntlmssp_state->session_key.data,
947 state->ntlmssp_state->session_key.length);
948 state->neg_flags = state->ntlmssp_state->neg_flags;
949 state->have_session_key = true;
950 state->svr_state = SERVER_FINISHED;
951 }
952
953 data_blob_free(&request);
954 }
955
956 static void manage_squid_ntlmssp_request(struct ntlm_auth_state *state,
957 char *buf, int length)
958 {
959 char *response;
960
961 manage_squid_ntlmssp_request_int(state, buf, length,
962 talloc_tos(), &response);
963
964 if (response == NULL) {
965 x_fprintf(x_stdout, "BH Out of memory\n");
966 return;
967 }
968 x_fprintf(x_stdout, "%s\n", response);
969 TALLOC_FREE(response);
970 }
971
972 static void manage_client_ntlmssp_request(struct ntlm_auth_state *state,
973 char *buf, int length)
974 {
975 DATA_BLOB request, reply;
976 NTSTATUS nt_status;
977
978 if (!opt_username || !*opt_username) {
979 x_fprintf(x_stderr, "username must be specified!\n\n");
980 exit(1);
981 }
982
983 if (strlen(buf) < 2) {
984 DEBUG(1, ("NTLMSSP query [%s] invalid\n", buf));
985 x_fprintf(x_stdout, "BH NTLMSSP query invalid\n");
986 return;
987 }
988
989 if (strlen(buf) > 3) {
990 if(strncmp(buf, "SF ", 3) == 0) {
991 DEBUG(10, ("Looking for flags to negotiate\n"));
992 talloc_free(state->want_feature_list);
993 state->want_feature_list = talloc_strdup(state->mem_ctx,
994 buf+3);
995 x_fprintf(x_stdout, "OK\n");
996 return;
997 }
998 request = base64_decode_data_blob(buf + 3);
999 } else {
1000 request = data_blob_null;
1001 }
1002
1003 if (strncmp(buf, "PW ", 3) == 0) {
1004 /* We asked for a password and obviously got it :-) */
1005
1006 opt_password = SMB_STRNDUP((const char *)request.data,
1007 request.length);
1008
1009 if (opt_password == NULL) {
1010 DEBUG(1, ("Out of memory\n"));
1011 x_fprintf(x_stdout, "BH Out of memory\n");
1012 data_blob_free(&request);
1013 return;
1014 }
1015
1016 x_fprintf(x_stdout, "OK\n");
1017 data_blob_free(&request);
1018 return;
1019 }
1020
1021 if (!state->ntlmssp_state && use_cached_creds) {
1022 /* check whether cached credentials are usable. */
1023 DATA_BLOB empty_blob = data_blob_null;
1024
1025 nt_status = do_ccache_ntlm_auth(empty_blob, empty_blob, NULL);
1026 if (!NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1027 /* failed to use cached creds */
1028 use_cached_creds = False;
1029 }
1030 }
1031
1032 if (opt_password == NULL && !use_cached_creds) {
1033 /* Request a password from the calling process. After
1034 sending it, the calling process should retry asking for the
1035 negotiate. */
1036
1037 DEBUG(10, ("Requesting password\n"));
1038 x_fprintf(x_stdout, "PW\n");
1039 return;
1040 }
1041
1042 if (strncmp(buf, "YR", 2) == 0) {
1043 TALLOC_FREE(state->ntlmssp_state);
1044 state->cli_state = CLIENT_INITIAL;
1045 } else if (strncmp(buf, "TT", 2) == 0) {
1046 /* No special preprocessing required */
1047 } else if (strncmp(buf, "GF", 2) == 0) {
1048 DEBUG(10, ("Requested negotiated NTLMSSP flags\n"));
1049
1050 if(state->cli_state == CLIENT_FINISHED) {
1051 x_fprintf(x_stdout, "GF 0x%08x\n", state->neg_flags);
1052 }
1053 else {
1054 x_fprintf(x_stdout, "BH\n");
1055 }
1056
1057 data_blob_free(&request);
1058 return;
1059 } else if (strncmp(buf, "GK", 2) == 0 ) {
1060 DEBUG(10, ("Requested session key\n"));
1061
1062 if(state->cli_state == CLIENT_FINISHED) {
1063 char *key64 = base64_encode_data_blob(state->mem_ctx,
1064 state->session_key);
1065 x_fprintf(x_stdout, "GK %s\n", key64?key64:"<NULL>");
1066 TALLOC_FREE(key64);
1067 }
1068 else {
1069 x_fprintf(x_stdout, "BH\n");
1070 }
1071
1072 data_blob_free(&request);
1073 return;
1074 } else {
1075 DEBUG(1, ("NTLMSSP query [%s] invalid\n", buf));
1076 x_fprintf(x_stdout, "BH NTLMSSP query invalid\n");
1077 return;
1078 }
1079
1080 if (!state->ntlmssp_state) {
1081 nt_status = ntlm_auth_start_ntlmssp_client(
1082 &state->ntlmssp_state);
1083 if (!NT_STATUS_IS_OK(nt_status)) {
1084 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
1085 return;
1086 }
1087 ntlmssp_want_feature_list(state->ntlmssp_state,
1088 state->want_feature_list);
1089 state->initial_message = data_blob_null;
1090 }
1091
1092 DEBUG(10, ("got NTLMSSP packet:\n"));
1093 dump_data(10, request.data, request.length);
1094
1095 if (use_cached_creds && !opt_password &&
1096 (state->cli_state == CLIENT_RESPONSE)) {
1097 nt_status = do_ccache_ntlm_auth(state->initial_message, request,
1098 &reply);
1099 } else {
1100 nt_status = ntlmssp_update(state->ntlmssp_state, request,
1101 &reply);
1102 }
1103
1104 if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1105 char *reply_base64 = base64_encode_data_blob(state->mem_ctx,
1106 reply);
1107 if (state->cli_state == CLIENT_INITIAL) {
1108 x_fprintf(x_stdout, "YR %s\n", reply_base64);
1109 state->initial_message = reply;
1110 state->cli_state = CLIENT_RESPONSE;
1111 } else {
1112 x_fprintf(x_stdout, "KK %s\n", reply_base64);
1113 data_blob_free(&reply);
1114 }
1115 TALLOC_FREE(reply_base64);
1116 DEBUG(10, ("NTLMSSP challenge\n"));
1117 } else if (NT_STATUS_IS_OK(nt_status)) {
1118 char *reply_base64 = base64_encode_data_blob(talloc_tos(),
1119 reply);
1120 x_fprintf(x_stdout, "AF %s\n", reply_base64);
1121 TALLOC_FREE(reply_base64);
1122
1123 if(state->have_session_key)
1124 data_blob_free(&state->session_key);
1125
1126 state->session_key = data_blob(
1127 state->ntlmssp_state->session_key.data,
1128 state->ntlmssp_state->session_key.length);
1129 state->neg_flags = state->ntlmssp_state->neg_flags;
1130 state->have_session_key = true;
1131
1132 DEBUG(10, ("NTLMSSP OK!\n"));
1133 state->cli_state = CLIENT_FINISHED;
1134 TALLOC_FREE(state->ntlmssp_state);
1135 } else {
1136 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
1137 DEBUG(0, ("NTLMSSP BH: %s\n", nt_errstr(nt_status)));
1138 state->cli_state = CLIENT_ERROR;
1139 TALLOC_FREE(state->ntlmssp_state);
1140 }
1141
1142 data_blob_free(&request);
1143 }
1144
1145 static void manage_squid_basic_request(struct ntlm_auth_state *state,
1146 char *buf, int length)
1147 {
1148 char *user, *pass;
1149 user=buf;
1150
1151 pass=(char *)memchr(buf,' ',length);
1152 if (!pass) {
1153 DEBUG(2, ("Password not found. Denying access\n"));
1154 x_fprintf(x_stdout, "ERR\n");
1155 return;
1156 }
1157 *pass='\0';
1158 pass++;
1159
1160 if (state->helper_mode == SQUID_2_5_BASIC) {
1161 rfc1738_unescape(user);
1162 rfc1738_unescape(pass);
1163 }
1164
1165 if (check_plaintext_auth(user, pass, False)) {
1166 x_fprintf(x_stdout, "OK\n");
1167 } else {
1168 x_fprintf(x_stdout, "ERR\n");
1169 }
1170 }
1171
1172 static void offer_gss_spnego_mechs(void) {
1173
1174 DATA_BLOB token;
1175 struct spnego_data spnego;
1176 ssize_t len;
1177 char *reply_base64;
1178 TALLOC_CTX *ctx = talloc_tos();
1179 char *principal;
1180 char *myname_lower;
1181
1182 ZERO_STRUCT(spnego);
1183
1184 myname_lower = talloc_strdup(ctx, global_myname());
1185 if (!myname_lower) {
1186 return;
1187 }
1188 strlower_m(myname_lower);
1189
1190 principal = talloc_asprintf(ctx, "%s$@%s", myname_lower, lp_realm());
1191 if (!principal) {
1192 return;
1193 }
1194
1195 /* Server negTokenInit (mech offerings) */
1196 spnego.type = SPNEGO_NEG_TOKEN_INIT;
1197 spnego.negTokenInit.mechTypes = talloc_array(ctx, const char *, 4);
1198 #ifdef HAVE_KRB5
1199 spnego.negTokenInit.mechTypes[0] = talloc_strdup(ctx, OID_KERBEROS5_OLD);
1200 spnego.negTokenInit.mechTypes[1] = talloc_strdup(ctx, OID_KERBEROS5);
1201 spnego.negTokenInit.mechTypes[2] = talloc_strdup(ctx, OID_NTLMSSP);
1202 spnego.negTokenInit.mechTypes[3] = NULL;
1203 #else
1204 spnego.negTokenInit.mechTypes[0] = talloc_strdup(ctx, OID_NTLMSSP);
1205 spnego.negTokenInit.mechTypes[1] = NULL;
1206 #endif
1207
1208
1209 spnego.negTokenInit.mechListMIC = data_blob_talloc(ctx, principal,
1210 strlen(principal));
1211
1212 len = spnego_write_data(ctx, &token, &spnego);
1213 spnego_free_data(&spnego);
1214
1215 if (len == -1) {
1216 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1217 x_fprintf(x_stdout, "BH Could not write SPNEGO data blob\n");
1218 return;
1219 }
1220
1221 reply_base64 = base64_encode_data_blob(talloc_tos(), token);
1222 x_fprintf(x_stdout, "TT %s *\n", reply_base64);
1223
1224 TALLOC_FREE(reply_base64);
1225 data_blob_free(&token);
1226 DEBUG(10, ("sent SPNEGO negTokenInit\n"));
1227 return;
1228 }
1229
1230 bool spnego_parse_krb5_wrap(TALLOC_CTX *ctx, DATA_BLOB blob, DATA_BLOB *ticket, uint8 tok_id[2])
1231 {
1232 bool ret;
1233 ASN1_DATA *data;
1234 int data_remaining;
1235
1236 data = asn1_init(talloc_tos());
1237 if (data == NULL) {
1238 return false;
1239 }
1240
1241 asn1_load(data, blob);
1242 asn1_start_tag(data, ASN1_APPLICATION(0));
1243 asn1_check_OID(data, OID_KERBEROS5);
1244
1245 data_remaining = asn1_tag_remaining(data);
1246
1247 if (data_remaining < 3) {
1248 data->has_error = True;
1249 } else {
1250 asn1_read(data, tok_id, 2);
1251 data_remaining -= 2;
1252 *ticket = data_blob_talloc(ctx, NULL, data_remaining);
1253 asn1_read(data, ticket->data, ticket->length);
1254 }
1255
1256 asn1_end_tag(data);
1257
1258 ret = !data->has_error;
1259
1260 if (data->has_error) {
1261 data_blob_free(ticket);
1262 }
1263
1264 asn1_free(data);
1265
1266 return ret;
1267 }
1268
1269 static void manage_gss_spnego_request(struct ntlm_auth_state *state,
1270 char *buf, int length)
1271 {
1272 struct spnego_data request, response;
1273 DATA_BLOB token;
1274 DATA_BLOB raw_in_token = data_blob_null;
1275 DATA_BLOB raw_out_token = data_blob_null;
1276 NTSTATUS status;
1277 ssize_t len;
1278 TALLOC_CTX *ctx = talloc_tos();
1279
1280 char *user = NULL;
1281 char *domain = NULL;
1282
1283 const char *reply_code;
1284 char *reply_base64;
1285 char *reply_argument = NULL;
1286 char *supportedMech = NULL;
1287
1288 if (strlen(buf) < 2) {
1289 DEBUG(1, ("SPENGO query [%s] invalid\n", buf));
1290 x_fprintf(x_stdout, "BH SPENGO query invalid\n");
1291 return;
1292 }
1293
1294 if (strncmp(buf, "YR", 2) == 0) {
1295 TALLOC_FREE(state->ntlmssp_state);
1296 TALLOC_FREE(state->spnego_mech);
1297 TALLOC_FREE(state->spnego_mech_oid);
1298 } else if (strncmp(buf, "KK", 2) == 0) {
1299 ;
1300 } else {
1301 DEBUG(1, ("SPENGO query [%s] invalid\n", buf));
1302 x_fprintf(x_stdout, "BH SPENGO query invalid\n");
1303 return;
1304 }
1305
1306 if ( (strlen(buf) == 2)) {
1307
1308 /* no client data, get the negTokenInit offering
1309 mechanisms */
1310
1311 offer_gss_spnego_mechs();
1312 return;
1313 }
1314
1315 /* All subsequent requests have a blob. This might be negTokenInit or negTokenTarg */
1316
1317 if (strlen(buf) <= 3) {
1318 DEBUG(1, ("GSS-SPNEGO query [%s] invalid\n", buf));
1319 x_fprintf(x_stdout, "BH GSS-SPNEGO query invalid\n");
1320 return;
1321 }
1322
1323 token = base64_decode_data_blob(buf + 3);
1324
1325 if ((token.length >= 7)
1326 && (strncmp((char *)token.data, "NTLMSSP", 7) == 0)) {
1327 char *reply;
1328
1329 data_blob_free(&token);
1330
1331 DEBUG(10, ("Could not parse GSS-SPNEGO, trying raw "
1332 "ntlmssp\n"));
1333
1334 manage_squid_ntlmssp_request_int(state, buf, length,
1335 talloc_tos(), &reply);
1336 if (reply == NULL) {
1337 x_fprintf(x_stdout, "BH Out of memory\n");
1338 return;
1339 }
1340
1341 if (strncmp(reply, "AF ", 3) == 0) {
1342 x_fprintf(x_stdout, "AF * %s\n", reply+3);
1343 } else {
1344 x_fprintf(x_stdout, "%s *\n", reply);
1345 }
1346
1347 TALLOC_FREE(reply);
1348 return;
1349 }
1350
1351 ZERO_STRUCT(request);
1352 len = spnego_read_data(ctx, token, &request);
1353 data_blob_free(&token);
1354
1355 if (len == -1) {
1356 DEBUG(1, ("GSS-SPNEGO query [%s] invalid\n", buf));
1357 x_fprintf(x_stdout, "BH GSS-SPNEGO query invalid\n");
1358 return;
1359 }
1360
1361 if (request.type == SPNEGO_NEG_TOKEN_INIT) {
1362 #ifdef HAVE_KRB5
1363 int krb5_idx = -1;
1364 #endif
1365 int ntlm_idx = -1;
1366 int used_idx = -1;
1367 int i;
1368
1369 if (state->spnego_mech) {
1370 DEBUG(1, ("Client restarted SPNEGO with NegTokenInit "
1371 "while mech[%s] was already negotiated\n",
1372 state->spnego_mech));
1373 x_fprintf(x_stdout, "BH Client send NegTokenInit twice\n");
1374 return;
1375 }
1376
1377 /* Second request from Client. This is where the
1378 client offers its mechanism to use. */
1379
1380 if ( (request.negTokenInit.mechTypes == NULL) ||
1381 (request.negTokenInit.mechTypes[0] == NULL) ) {
1382 DEBUG(1, ("Client did not offer any mechanism\n"));
1383 x_fprintf(x_stdout, "BH Client did not offer any "
1384 "mechanism\n");
1385 return;
1386 }
1387
1388 status = NT_STATUS_UNSUCCESSFUL;
1389 for (i = 0; request.negTokenInit.mechTypes[i] != NULL; i++) {
1390 DEBUG(10,("got mech[%d][%s]\n",
1391 i, request.negTokenInit.mechTypes[i]));
1392 #ifdef HAVE_KRB5
1393 if (strcmp(request.negTokenInit.mechTypes[i], OID_KERBEROS5_OLD) == 0) {
1394 krb5_idx = i;
1395 break;
1396 }
1397 if (strcmp(request.negTokenInit.mechTypes[i], OID_KERBEROS5) == 0) {
1398 krb5_idx = i;
1399 break;
1400 }
1401 #endif
1402 if (strcmp(request.negTokenInit.mechTypes[i], OID_NTLMSSP) == 0) {
1403 ntlm_idx = i;
1404 break;
1405 }
1406 }
1407
1408 used_idx = ntlm_idx;
1409 #ifdef HAVE_KRB5
1410 if (krb5_idx != -1) {
1411 ntlm_idx = -1;
1412 used_idx = krb5_idx;
1413 }
1414 #endif
1415 if (ntlm_idx > -1) {
1416 state->spnego_mech = talloc_strdup(state, "ntlmssp");
1417 if (state->spnego_mech == NULL) {
1418 x_fprintf(x_stdout, "BH Out of memory\n");
1419 return;
1420 }
1421
1422 if (state->ntlmssp_state) {
1423 DEBUG(1, ("Client wants a new NTLMSSP challenge, but "
1424 "already got one\n"));
1425 x_fprintf(x_stdout, "BH Client wants a new "
1426 "NTLMSSP challenge, but "
1427 "already got one\n");
1428 TALLOC_FREE(state->ntlmssp_state);
1429 return;
1430 }
1431
1432 status = ntlm_auth_start_ntlmssp_server(&state->ntlmssp_state);
1433 if (!NT_STATUS_IS_OK(status)) {
1434 x_fprintf(x_stdout, "BH %s\n", nt_errstr(status));
1435 return;
1436 }
1437 }
1438
1439 #ifdef HAVE_KRB5
1440 if (krb5_idx > -1) {
1441 state->spnego_mech = talloc_strdup(state, "krb5");
1442 if (state->spnego_mech == NULL) {
1443 x_fprintf(x_stdout, "BH Out of memory\n");
1444 return;
1445 }
1446 }
1447 #endif
1448 if (used_idx > -1) {
1449 state->spnego_mech_oid = talloc_strdup(state,
1450 request.negTokenInit.mechTypes[used_idx]);
1451 if (state->spnego_mech_oid == NULL) {
1452 x_fprintf(x_stdout, "BH Out of memory\n");
1453 return;
1454 }
1455 supportedMech = talloc_strdup(ctx, state->spnego_mech_oid);
1456 if (supportedMech == NULL) {
1457 x_fprintf(x_stdout, "BH Out of memory\n");
1458 return;
1459 }
1460
1461 status = NT_STATUS_MORE_PROCESSING_REQUIRED;
1462 } else {
1463 status = NT_STATUS_NOT_SUPPORTED;
1464 }
1465 if (used_idx == 0) {
1466 status = NT_STATUS_OK;
1467 raw_in_token = request.negTokenInit.mechToken;
1468 }
1469 } else {
1470 if (state->spnego_mech == NULL) {
1471 DEBUG(1,("Got netTokenTarg without negTokenInit\n"));
1472 x_fprintf(x_stdout, "BH Got a negTokenTarg without "
1473 "negTokenInit\n");
1474 return;
1475 }
1476
1477 if ((request.negTokenTarg.supportedMech != NULL) &&
1478 (strcmp(request.negTokenTarg.supportedMech, state->spnego_mech_oid) != 0 ) ) {
1479 DEBUG(1, ("Got a negTokenTarg with mech[%s] while [%s] was already negotiated\n",
1480 request.negTokenTarg.supportedMech,
1481 state->spnego_mech_oid));
1482 x_fprintf(x_stdout, "BH Got a negTokenTarg with speficied mech\n");
1483 return;
1484 }
1485
1486 status = NT_STATUS_OK;
1487 raw_in_token = request.negTokenTarg.responseToken;
1488 }
1489
1490 if (!NT_STATUS_IS_OK(status)) {
1491 /* error or more processing */
1492 } else if (strcmp(state->spnego_mech, "ntlmssp") == 0) {
1493
1494 DEBUG(10, ("got NTLMSSP packet:\n"));
1495 dump_data(10, raw_in_token.data, raw_in_token.length);
1496
1497 status = ntlmssp_update(state->ntlmssp_state,
1498 raw_in_token,
1499 &raw_out_token);
1500 if (NT_STATUS_IS_OK(status)) {
1501 user = talloc_strdup(ctx, state->ntlmssp_state->user);
1502 domain = talloc_strdup(ctx, state->ntlmssp_state->domain);
1503 }
1504 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1505 TALLOC_FREE(state->ntlmssp_state);
1506 }
1507 #ifdef HAVE_KRB5
1508 } else if (strcmp(state->spnego_mech, "krb5") == 0) {
1509 char *principal;
1510 DATA_BLOB ap_rep;
1511 DATA_BLOB session_key;
1512 struct PAC_LOGON_INFO *logon_info = NULL;
1513 DATA_BLOB ticket;
1514 uint8_t tok_id[2];
1515
1516 if (!spnego_parse_krb5_wrap(ctx, raw_in_token,
1517 &ticket, tok_id)) {
1518 DEBUG(1, ("spnego_parse_krb5_wrap failed\n"));
1519 x_fprintf(x_stdout, "BH spnego_parse_krb5_wrap failed\n");
1520 return;
1521 }
1522
1523 status = ads_verify_ticket(ctx, lp_realm(), 0,
1524 &ticket,
1525 &principal, &logon_info, &ap_rep,
1526 &session_key, True);
1527
1528 /* Now in "principal" we have the name we are authenticated as. */
1529
1530 if (NT_STATUS_IS_OK(status)) {
1531
1532 domain = strchr_m(principal, '@');
1533
1534 if (domain == NULL) {
1535 DEBUG(1, ("Did not get a valid principal "
1536 "from ads_verify_ticket\n"));
1537 x_fprintf(x_stdout, "BH Did not get a "
1538 "valid principal from "
1539 "ads_verify_ticket\n");
1540 return;
1541 }
1542
1543 *domain++ = '\0';
1544 domain = talloc_strdup(ctx, domain);
1545 user = talloc_strdup(ctx, principal);
1546
1547 if (logon_info) {
1548 netsamlogon_cache_store(
1549 user, &logon_info->info3);
1550 }
1551
1552 data_blob_free(&ap_rep);
1553 data_blob_free(&session_key);
1554 }
1555 data_blob_free(&ticket);
1556 #endif
1557 }
1558
1559 spnego_free_data(&request);
1560 ZERO_STRUCT(response);
1561 response.type = SPNEGO_NEG_TOKEN_TARG;
1562
1563 if (NT_STATUS_IS_OK(status)) {
1564 TALLOC_FREE(state->spnego_mech);
1565 TALLOC_FREE(state->spnego_mech_oid);
1566 response.negTokenTarg.negResult = SPNEGO_ACCEPT_COMPLETED;
1567 response.negTokenTarg.responseToken = raw_out_token;
1568 reply_code = "AF";
1569 reply_argument = talloc_asprintf(ctx, "%s\\%s", domain, user);
1570 } else if (NT_STATUS_EQUAL(status,
1571 NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1572 response.negTokenTarg.supportedMech = supportedMech;
1573 response.negTokenTarg.responseToken = raw_out_token;
1574 response.negTokenTarg.negResult = SPNEGO_ACCEPT_INCOMPLETE;
1575 reply_code = "TT";
1576 reply_argument = talloc_strdup(ctx, "*");
1577 } else {
1578 TALLOC_FREE(state->spnego_mech);
1579 TALLOC_FREE(state->spnego_mech_oid);
1580 data_blob_free(&raw_out_token);
1581 response.negTokenTarg.negResult = SPNEGO_REJECT;
1582 reply_code = "NA";
1583 reply_argument = talloc_strdup(ctx, nt_errstr(status));
1584 }
1585
1586 if (!reply_argument) {
1587 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1588 x_fprintf(x_stdout, "BH Could not write SPNEGO data blob\n");
1589 spnego_free_data(&response);
1590 return;
1591 }
1592
1593 len = spnego_write_data(ctx, &token, &response);
1594 spnego_free_data(&response);
1595
1596 if (len == -1) {
1597 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1598 x_fprintf(x_stdout, "BH Could not write SPNEGO data blob\n");
1599 return;
1600 }
1601
1602 reply_base64 = base64_encode_data_blob(talloc_tos(), token);
1603
1604 x_fprintf(x_stdout, "%s %s %s\n",
1605 reply_code, reply_base64, reply_argument);
1606
1607 TALLOC_FREE(reply_base64);
1608 data_blob_free(&token);
1609
1610 return;
1611 }
1612
1613 static struct ntlmssp_state *client_ntlmssp_state = NULL;
1614
1615 static bool manage_client_ntlmssp_init(struct spnego_data spnego)
1616 {
1617 NTSTATUS status;
1618 DATA_BLOB null_blob = data_blob_null;
1619 DATA_BLOB to_server;
1620 char *to_server_base64;
1621 const char *my_mechs[] = {OID_NTLMSSP, NULL};
1622 TALLOC_CTX *ctx = talloc_tos();
1623
1624 DEBUG(10, ("Got spnego negTokenInit with NTLMSSP\n"));
1625
1626 if (client_ntlmssp_state != NULL) {
1627 DEBUG(1, ("Request for initial SPNEGO request where "
1628 "we already have a state\n"));
1629 return False;
1630 }
1631
1632 if (!client_ntlmssp_state) {
1633 if (!NT_STATUS_IS_OK(status = ntlm_auth_start_ntlmssp_client(&client_ntlmssp_state))) {
1634 x_fprintf(x_stdout, "BH %s\n", nt_errstr(status));
1635 return False;
1636 }
1637 }
1638
1639
1640 if (opt_password == NULL) {
1641
1642 /* Request a password from the calling process. After
1643 sending it, the calling process should retry with
1644 the negTokenInit. */
1645
1646 DEBUG(10, ("Requesting password\n"));
1647 x_fprintf(x_stdout, "PW\n");
1648 return True;
1649 }
1650
1651 spnego.type = SPNEGO_NEG_TOKEN_INIT;
1652 spnego.negTokenInit.mechTypes = my_mechs;
1653 spnego.negTokenInit.reqFlags = data_blob_null;
1654 spnego.negTokenInit.reqFlagsPadding = 0;
1655 spnego.negTokenInit.mechListMIC = null_blob;
1656
1657 status = ntlmssp_update(client_ntlmssp_state, null_blob,
1658 &spnego.negTokenInit.mechToken);
1659
1660 if ( !(NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED) ||
1661 NT_STATUS_IS_OK(status)) ) {
1662 DEBUG(1, ("Expected OK or MORE_PROCESSING_REQUIRED, got: %s\n",
1663 nt_errstr(status)));
1664 TALLOC_FREE(client_ntlmssp_state);
1665 return False;
1666 }
1667
1668 spnego_write_data(ctx, &to_server, &spnego);
1669 data_blob_free(&spnego.negTokenInit.mechToken);
1670
1671 to_server_base64 = base64_encode_data_blob(talloc_tos(), to_server);
1672 data_blob_free(&to_server);
1673 x_fprintf(x_stdout, "KK %s\n", to_server_base64);
1674 TALLOC_FREE(to_server_base64);
1675 return True;
1676 }
1677
1678 static void manage_client_ntlmssp_targ(struct spnego_data spnego)
1679 {
1680 NTSTATUS status;
1681 DATA_BLOB null_blob = data_blob_null;
1682 DATA_BLOB request;
1683 DATA_BLOB to_server;
1684 char *to_server_base64;
1685 TALLOC_CTX *ctx = talloc_tos();
1686
1687 DEBUG(10, ("Got spnego negTokenTarg with NTLMSSP\n"));
1688
1689 if (client_ntlmssp_state == NULL) {
1690 DEBUG(1, ("Got NTLMSSP tArg without a client state\n"));
1691 x_fprintf(x_stdout, "BH Got NTLMSSP tArg without a client state\n");
1692 return;
1693 }
1694
1695 if (spnego.negTokenTarg.negResult == SPNEGO_REJECT) {
1696 x_fprintf(x_stdout, "NA\n");
1697 TALLOC_FREE(client_ntlmssp_state);
1698 return;
1699 }
1700
1701 if (spnego.negTokenTarg.negResult == SPNEGO_ACCEPT_COMPLETED) {
1702 x_fprintf(x_stdout, "AF\n");
1703 TALLOC_FREE(client_ntlmssp_state);
1704 return;
1705 }
1706
1707 status = ntlmssp_update(client_ntlmssp_state,
1708 spnego.negTokenTarg.responseToken,
1709 &request);
1710
1711 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1712 DEBUG(1, ("Expected MORE_PROCESSING_REQUIRED from "
1713 "ntlmssp_client_update, got: %s\n",
1714 nt_errstr(status)));
1715 x_fprintf(x_stdout, "BH Expected MORE_PROCESSING_REQUIRED from "
1716 "ntlmssp_client_update\n");
1717 data_blob_free(&request);
1718 TALLOC_FREE(client_ntlmssp_state);
1719 return;
1720 }
1721
1722 spnego.type = SPNEGO_NEG_TOKEN_TARG;
1723 spnego.negTokenTarg.negResult = SPNEGO_ACCEPT_INCOMPLETE;
1724 spnego.negTokenTarg.supportedMech = (char *)OID_NTLMSSP;
1725 spnego.negTokenTarg.responseToken = request;
1726 spnego.negTokenTarg.mechListMIC = null_blob;
1727
1728 spnego_write_data(ctx, &to_server, &spnego);
1729 data_blob_free(&request);
1730
1731 to_server_base64 = base64_encode_data_blob(talloc_tos(), to_server);
1732 data_blob_free(&to_server);
1733 x_fprintf(x_stdout, "KK %s\n", to_server_base64);
1734 TALLOC_FREE(to_server_base64);
1735 return;
1736 }
1737
1738 #ifdef HAVE_KRB5
1739
1740 static bool manage_client_krb5_init(struct spnego_data spnego)
1741 {
1742 char *principal;
1743 DATA_BLOB tkt, to_server;
1744 DATA_BLOB session_key_krb5 = data_blob_null;
1745 struct spnego_data reply;
1746 char *reply_base64;
1747 int retval;
1748
1749 const char *my_mechs[] = {OID_KERBEROS5_OLD, NULL};
1750 ssize_t len;
1751 TALLOC_CTX *ctx = talloc_tos();
1752
1753 if ( (spnego.negTokenInit.mechListMIC.data == NULL) ||
1754 (spnego.negTokenInit.mechListMIC.length == 0) ) {
1755 DEBUG(1, ("Did not get a principal for krb5\n"));
1756 return False;
1757 }
1758
1759 principal = (char *)SMB_MALLOC(
1760 spnego.negTokenInit.mechListMIC.length+1);
1761
1762 if (principal == NULL) {
1763 DEBUG(1, ("Could not malloc principal\n"));
1764 return False;
1765 }
1766
1767 memcpy(principal, spnego.negTokenInit.mechListMIC.data,
1768 spnego.negTokenInit.mechListMIC.length);
1769 principal[spnego.negTokenInit.mechListMIC.length] = '\0';
1770
1771 retval = cli_krb5_get_ticket(ctx, principal, 0,
1772 &tkt, &session_key_krb5,
1773 0, NULL, NULL, NULL);
1774 if (retval) {
1775 char *user = NULL;
1776
1777 /* Let's try to first get the TGT, for that we need a
1778 password. */
1779
1780 if (opt_password == NULL) {
1781 DEBUG(10, ("Requesting password\n"));
1782 x_fprintf(x_stdout, "PW\n");
1783 return True;
1784 }
1785
1786 user = talloc_asprintf(talloc_tos(), "%s@%s", opt_username, opt_domain);
1787 if (!user) {
1788 return false;
1789 }
1790
1791 if ((retval = kerberos_kinit_password(user, opt_password, 0, NULL))) {
1792 DEBUG(10, ("Requesting TGT failed: %s\n", error_message(retval)));
1793 return False;
1794 }
1795
1796 retval = cli_krb5_get_ticket(ctx, principal, 0,
1797 &tkt, &session_key_krb5,
1798 0, NULL, NULL, NULL);
1799 if (retval) {
1800 DEBUG(10, ("Kinit suceeded, but getting a ticket failed: %s\n", error_message(retval)));
1801 return False;
1802 }
1803 }
1804
1805 data_blob_free(&session_key_krb5);
1806
1807 ZERO_STRUCT(reply);
1808
1809 reply.type = SPNEGO_NEG_TOKEN_INIT;
1810 reply.negTokenInit.mechTypes = my_mechs;
1811 reply.negTokenInit.reqFlags = data_blob_null;
1812 reply.negTokenInit.reqFlagsPadding = 0;
1813 reply.negTokenInit.mechToken = tkt;
1814 reply.negTokenInit.mechListMIC = data_blob_null;
1815
1816 len = spnego_write_data(ctx, &to_server, &reply);
1817 data_blob_free(&tkt);
1818
1819 if (len == -1) {
1820 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1821 return False;
1822 }
1823
1824 reply_base64 = base64_encode_data_blob(talloc_tos(), to_server);
1825 x_fprintf(x_stdout, "KK %s *\n", reply_base64);
1826
1827 TALLOC_FREE(reply_base64);
1828 data_blob_free(&to_server);
1829 DEBUG(10, ("sent GSS-SPNEGO KERBEROS5 negTokenInit\n"));
1830 return True;
1831 }
1832
1833 static void manage_client_krb5_targ(struct spnego_data spnego)
1834 {
1835 switch (spnego.negTokenTarg.negResult) {
1836 case SPNEGO_ACCEPT_INCOMPLETE:
1837 DEBUG(1, ("Got a Kerberos negTokenTarg with ACCEPT_INCOMPLETE\n"));
1838 x_fprintf(x_stdout, "BH Got a Kerberos negTokenTarg with "
1839 "ACCEPT_INCOMPLETE\n");
1840 break;
1841 case SPNEGO_ACCEPT_COMPLETED:
1842 DEBUG(10, ("Accept completed\n"));
1843 x_fprintf(x_stdout, "AF\n");
1844 break;
1845 case SPNEGO_REJECT:
1846 DEBUG(10, ("Rejected\n"));
1847 x_fprintf(x_stdout, "NA\n");
1848 break;
1849 default:
1850 DEBUG(1, ("Got an invalid negTokenTarg\n"));
1851 x_fprintf(x_stdout, "AF\n");
1852 }
1853 }
1854
1855 #endif
1856
1857 static void manage_gss_spnego_client_request(struct ntlm_auth_state *state,
1858 char *buf, int length)
1859 {
1860 DATA_BLOB request;
1861 struct spnego_data spnego;
1862 ssize_t len;
1863 TALLOC_CTX *ctx = talloc_tos();
1864
1865 if (!opt_username || !*opt_username) {
1866 x_fprintf(x_stderr, "username must be specified!\n\n");
1867 exit(1);
1868 }
1869
1870 if (strlen(buf) <= 3) {
1871 DEBUG(1, ("SPNEGO query [%s] too short\n", buf));
1872 x_fprintf(x_stdout, "BH SPNEGO query too short\n");
1873 return;
1874 }
1875
1876 request = base64_decode_data_blob(buf+3);
1877
1878 if (strncmp(buf, "PW ", 3) == 0) {
1879
1880 /* We asked for a password and obviously got it :-) */
1881
1882 opt_password = SMB_STRNDUP((const char *)request.data, request.length);
1883
1884 if (opt_password == NULL) {
1885 DEBUG(1, ("Out of memory\n"));
1886 x_fprintf(x_stdout, "BH Out of memory\n");
1887 data_blob_free(&request);
1888 return;
1889 }
1890
1891 x_fprintf(x_stdout, "OK\n");
1892 data_blob_free(&request);
1893 return;
1894 }
1895
1896 if ( (strncmp(buf, "TT ", 3) != 0) &&
1897 (strncmp(buf, "AF ", 3) != 0) &&
1898 (strncmp(buf, "NA ", 3) != 0) ) {
1899 DEBUG(1, ("SPNEGO request [%s] invalid\n", buf));
1900 x_fprintf(x_stdout, "BH SPNEGO request invalid\n");
1901 data_blob_free(&request);
1902 return;
1903 }
1904
1905 /* So we got a server challenge to generate a SPNEGO
1906 client-to-server request... */
1907
1908 len = spnego_read_data(ctx, request, &spnego);
1909 data_blob_free(&request);
1910
1911 if (len == -1) {
1912 DEBUG(1, ("Could not read SPNEGO data for [%s]\n", buf));
1913 x_fprintf(x_stdout, "BH Could not read SPNEGO data\n");
1914 return;
1915 }
1916
1917 if (spnego.type == SPNEGO_NEG_TOKEN_INIT) {
1918
1919 /* The server offers a list of mechanisms */
1920
1921 const char **mechType = (const char **)spnego.negTokenInit.mechTypes;
1922
1923 while (*mechType != NULL) {
1924
1925 #ifdef HAVE_KRB5
1926 if ( (strcmp(*mechType, OID_KERBEROS5_OLD) == 0) ||
1927 (strcmp(*mechType, OID_KERBEROS5) == 0) ) {
1928 if (manage_client_krb5_init(spnego))
1929 goto out;
1930 }
1931 #endif
1932
1933 if (strcmp(*mechType, OID_NTLMSSP) == 0) {
1934 if (manage_client_ntlmssp_init(spnego))
1935 goto out;
1936 }
1937
1938 mechType++;
1939 }
1940
1941 DEBUG(1, ("Server offered no compatible mechanism\n"));
1942 x_fprintf(x_stdout, "BH Server offered no compatible mechanism\n");
1943 return;
1944 }
1945
1946 if (spnego.type == SPNEGO_NEG_TOKEN_TARG) {
1947
1948 if (spnego.negTokenTarg.supportedMech == NULL) {
1949 /* On accept/reject Windows does not send the
1950 mechanism anymore. Handle that here and
1951 shut down the mechanisms. */
1952
1953 switch (spnego.negTokenTarg.negResult) {
1954 case SPNEGO_ACCEPT_COMPLETED:
1955 x_fprintf(x_stdout, "AF\n");
1956 break;
1957 case SPNEGO_REJECT:
1958 x_fprintf(x_stdout, "NA\n");
1959 break;
1960 default:
1961 DEBUG(1, ("Got a negTokenTarg with no mech and an "
1962 "unknown negResult: %d\n",
1963 spnego.negTokenTarg.negResult));
1964 x_fprintf(x_stdout, "BH Got a negTokenTarg with"
1965 " no mech and an unknown "
1966 "negResult\n");
1967 }
1968
1969 TALLOC_FREE(client_ntlmssp_state);
1970 goto out;
1971 }
1972
1973 if (strcmp(spnego.negTokenTarg.supportedMech,
1974 OID_NTLMSSP) == 0) {
1975 manage_client_ntlmssp_targ(spnego);
1976 goto out;
1977 }
1978
1979 #if HAVE_KRB5
1980 if (strcmp(spnego.negTokenTarg.supportedMech,
1981 OID_KERBEROS5_OLD) == 0) {
1982 manage_client_krb5_targ(spnego);
1983 goto out;
1984 }
1985 #endif
1986
1987 }
1988
1989 DEBUG(1, ("Got an SPNEGO token I could not handle [%s]!\n", buf));
1990 x_fprintf(x_stdout, "BH Got an SPNEGO token I could not handle\n");
1991 return;
1992
1993 out:
1994 spnego_free_data(&spnego);
1995 return;
1996 }
1997
1998 static void manage_ntlm_server_1_request(struct ntlm_auth_state *state,
1999 char *buf, int length)
2000 {
2001 char *request, *parameter;
2002 static DATA_BLOB challenge;
2003 static DATA_BLOB lm_response;
2004 static DATA_BLOB nt_response;
2005 static char *full_username;
2006 static char *username;
2007 static char *domain;
2008 static char *plaintext_password;
2009 static bool ntlm_server_1_user_session_key;
2010 static bool ntlm_server_1_lm_session_key;
2011
2012 if (strequal(buf, ".")) {
2013 if (!full_username && !username) {
2014 x_fprintf(x_stdout, "Error: No username supplied!\n");
2015 } else if (plaintext_password) {
2016 /* handle this request as plaintext */
2017 if (!full_username) {
2018 if (asprintf(&full_username, "%s%c%s", domain, winbind_separator(), username) == -1) {
2019 x_fprintf(x_stdout, "Error: Out of memory in asprintf!\n.\n");
2020 return;
2021 }
2022 }
2023 if (check_plaintext_auth(full_username, plaintext_password, False)) {
2024 x_fprintf(x_stdout, "Authenticated: Yes\n");
2025 } else {
2026 x_fprintf(x_stdout, "Authenticated: No\n");
2027 }
2028 } else if (!lm_response.data && !nt_response.data) {
2029 x_fprintf(x_stdout, "Error: No password supplied!\n");
2030 } else if (!challenge.data) {
2031 x_fprintf(x_stdout, "Error: No lanman-challenge supplied!\n");
2032 } else {
2033 char *error_string = NULL;
2034 uchar lm_key[8];
2035 uchar user_session_key[16];
2036 uint32 flags = 0;
2037
2038 if (full_username && !username) {
2039 fstring fstr_user;
2040 fstring fstr_domain;
2041
2042 if (!parse_ntlm_auth_domain_user(full_username, fstr_user, fstr_domain)) {
2043 /* username might be 'tainted', don't print into our new-line deleimianted stream */
2044 x_fprintf(x_stdout, "Error: Could not parse into domain and username\n");
2045 }
2046 SAFE_FREE(username);
2047 SAFE_FREE(domain);
2048 username = smb_xstrdup(fstr_user);
2049 domain = smb_xstrdup(fstr_domain);
2050 }
2051
2052 if (!domain) {
2053 domain = smb_xstrdup(get_winbind_domain());
2054 }
2055
2056 if (ntlm_server_1_lm_session_key)
2057 flags |= WBFLAG_PAM_LMKEY;
2058
2059 if (ntlm_server_1_user_session_key)
2060 flags |= WBFLAG_PAM_USER_SESSION_KEY;
2061
2062 if (!NT_STATUS_IS_OK(
2063 contact_winbind_auth_crap(username,
2064 domain,
2065 global_myname(),
2066 &challenge,
2067 &lm_response,
2068 &nt_response,
2069 flags,
2070 lm_key,
2071 user_session_key,
2072 &error_string,
2073 NULL))) {
2074
2075 x_fprintf(x_stdout, "Authenticated: No\n");
2076 x_fprintf(x_stdout, "Authentication-Error: %s\n.\n", error_string);
2077 } else {
2078 static char zeros[16];
2079 char *hex_lm_key;
2080 char *hex_user_session_key;
2081
2082 x_fprintf(x_stdout, "Authenticated: Yes\n");
2083
2084 if (ntlm_server_1_lm_session_key
2085 && (memcmp(zeros, lm_key,
2086 sizeof(lm_key)) != 0)) {
2087 hex_lm_key = hex_encode_talloc(NULL,
2088 (const unsigned char *)lm_key,
2089 sizeof(lm_key));
2090 x_fprintf(x_stdout, "LANMAN-Session-Key: %s\n", hex_lm_key);
2091 TALLOC_FREE(hex_lm_key);
2092 }
2093
2094 if (ntlm_server_1_user_session_key
2095 && (memcmp(zeros, user_session_key,
2096 sizeof(user_session_key)) != 0)) {
2097 hex_user_session_key = hex_encode_talloc(NULL,
2098 (const unsigned char *)user_session_key,
2099 sizeof(user_session_key));
2100 x_fprintf(x_stdout, "User-Session-Key: %s\n", hex_user_session_key);
2101 TALLOC_FREE(hex_user_session_key);
2102 }
2103 }
2104 SAFE_FREE(error_string);
2105 }
2106 /* clear out the state */
2107 challenge = data_blob_null;
2108 nt_response = data_blob_null;
2109 lm_response = data_blob_null;
2110 SAFE_FREE(full_username);
2111 SAFE_FREE(username);
2112 SAFE_FREE(domain);
2113 SAFE_FREE(plaintext_password);
2114 ntlm_server_1_user_session_key = False;
2115 ntlm_server_1_lm_session_key = False;
2116 x_fprintf(x_stdout, ".\n");
2117
2118 return;
2119 }
2120
2121 request = buf;
2122
2123 /* Indicates a base64 encoded structure */
2124 parameter = strstr_m(request, ":: ");
2125 if (!parameter) {
2126 parameter = strstr_m(request, ": ");
2127
2128 if (!parameter) {
2129 DEBUG(0, ("Parameter not found!\n"));
2130 x_fprintf(x_stdout, "Error: Parameter not found!\n.\n");
2131 return;
2132 }
2133
2134 parameter[0] ='\0';
2135 parameter++;
2136 parameter[0] ='\0';
2137 parameter++;
2138
2139 } else {
2140 parameter[0] ='\0';
2141 parameter++;
2142 parameter[0] ='\0';
2143 parameter++;
2144 parameter[0] ='\0';
2145 parameter++;
2146
2147 base64_decode_inplace(parameter);
2148 }
2149
2150 if (strequal(request, "LANMAN-Challenge")) {
2151 challenge = strhex_to_data_blob(NULL, parameter);
2152 if (challenge.length != 8) {
2153 x_fprintf(x_stdout, "Error: hex decode of %s failed! (got %d bytes, expected 8)\n.\n",
2154 parameter,
2155 (int)challenge.length);
2156 challenge = data_blob_null;
2157 }
2158 } else if (strequal(request, "NT-Response")) {
2159 nt_response = strhex_to_data_blob(NULL, parameter);
2160 if (nt_response.length < 24) {
2161 x_fprintf(x_stdout, "Error: hex decode of %s failed! (only got %d bytes, needed at least 24)\n.\n",
2162 parameter,
2163 (int)nt_response.length);
2164 nt_response = data_blob_null;
2165 }
2166 } else if (strequal(request, "LANMAN-Response")) {
2167 lm_response = strhex_to_data_blob(NULL, parameter);
2168 if (lm_response.length != 24) {
2169 x_fprintf(x_stdout, "Error: hex decode of %s failed! (got %d bytes, expected 24)\n.\n",
2170 parameter,
2171 (int)lm_response.length);
2172 lm_response = data_blob_null;
2173 }
2174 } else if (strequal(request, "Password")) {
2175 plaintext_password = smb_xstrdup(parameter);
2176 } else if (strequal(request, "NT-Domain")) {
2177 domain = smb_xstrdup(parameter);
2178 } else if (strequal(request, "Username")) {
2179 username = smb_xstrdup(parameter);
2180 } else if (strequal(request, "Full-Username")) {
2181 full_username = smb_xstrdup(parameter);
2182 } else if (strequal(request, "Request-User-Session-Key")) {
2183 ntlm_server_1_user_session_key = strequal(parameter, "Yes");
2184 } else if (strequal(request, "Request-LanMan-Session-Key")) {
2185 ntlm_server_1_lm_session_key = strequal(parameter, "Yes");
2186 } else {
2187 x_fprintf(x_stdout, "Error: Unknown request %s\n.\n", request);
2188 }
2189 }
2190
2191 static void manage_ntlm_change_password_1_request(struct ntlm_auth_state *state,
2192 char *buf, int length)
2193 {
2194 char *request, *parameter;
2195 static DATA_BLOB new_nt_pswd;
2196 static DATA_BLOB old_nt_hash_enc;
2197 static DATA_BLOB new_lm_pswd;
2198 static DATA_BLOB old_lm_hash_enc;
2199 static char *full_username = NULL;
2200 static char *username = NULL;
2201 static char *domain = NULL;
2202 static char *newpswd = NULL;
2203 static char *oldpswd = NULL;
2204
2205 if (strequal(buf, ".")) {
2206 if(newpswd && oldpswd) {
2207 uchar old_nt_hash[16];
2208 uchar old_lm_hash[16];
2209 uchar new_nt_hash[16];
2210 uchar new_lm_hash[16];
2211
2212 new_nt_pswd = data_blob(NULL, 516);
2213 old_nt_hash_enc = data_blob(NULL, 16);
2214
2215 /* Calculate the MD4 hash (NT compatible) of the
2216 * password */
2217 E_md4hash(oldpswd, old_nt_hash);
2218 E_md4hash(newpswd, new_nt_hash);
2219
2220 /* E_deshash returns false for 'long'
2221 passwords (> 14 DOS chars).
2222
2223 Therefore, don't send a buffer
2224 encrypted with the truncated hash
2225 (it could allow an even easier
2226 attack on the password)
2227
2228 Likewise, obey the admin's restriction
2229 */
2230
2231 if (lp_client_lanman_auth() &&
2232 E_deshash(newpswd, new_lm_hash) &&
2233 E_deshash(oldpswd, old_lm_hash)) {
2234 new_lm_pswd = data_blob(NULL, 516);
2235 old_lm_hash_enc = data_blob(NULL, 16);
2236 encode_pw_buffer(new_lm_pswd.data, newpswd,
2237 STR_UNICODE);
2238
2239 arcfour_crypt(new_lm_pswd.data, old_nt_hash, 516);
2240 E_old_pw_hash(new_nt_hash, old_lm_hash,
2241 old_lm_hash_enc.data);
2242 } else {
2243 new_lm_pswd.data = NULL;
2244 new_lm_pswd.length = 0;
2245 old_lm_hash_enc.data = NULL;
2246 old_lm_hash_enc.length = 0;
2247 }
2248
2249 encode_pw_buffer(new_nt_pswd.data, newpswd,
2250 STR_UNICODE);
2251
2252 arcfour_crypt(new_nt_pswd.data, old_nt_hash, 516);
2253 E_old_pw_hash(new_nt_hash, old_nt_hash,
2254 old_nt_hash_enc.data);
2255 }
2256
2257 if (!full_username && !username) {
2258 x_fprintf(x_stdout, "Error: No username supplied!\n");
2259 } else if ((!new_nt_pswd.data || !old_nt_hash_enc.data) &&
2260 (!new_lm_pswd.data || old_lm_hash_enc.data) ) {
2261 x_fprintf(x_stdout, "Error: No NT or LM password "
2262 "blobs supplied!\n");
2263 } else {
2264 char *error_string = NULL;
2265
2266 if (full_username && !username) {
2267 fstring fstr_user;
2268 fstring fstr_domain;
2269
2270 if (!parse_ntlm_auth_domain_user(full_username,
2271 fstr_user,
2272 fstr_domain)) {
2273 /* username might be 'tainted', don't
2274 * print into our new-line
2275 * deleimianted stream */
2276 x_fprintf(x_stdout, "Error: Could not "
2277 "parse into domain and "
2278 "username\n");
2279 SAFE_FREE(username);
2280 username = smb_xstrdup(full_username);
2281 } else {
2282 SAFE_FREE(username);
2283 SAFE_FREE(domain);
2284 username = smb_xstrdup(fstr_user);
2285 domain = smb_xstrdup(fstr_domain);
2286 }
2287
2288 }
2289
2290 if(!NT_STATUS_IS_OK(contact_winbind_change_pswd_auth_crap(
2291 username, domain,
2292 new_nt_pswd,
2293 old_nt_hash_enc,
2294 new_lm_pswd,
2295 old_lm_hash_enc,
2296 &error_string))) {
2297 x_fprintf(x_stdout, "Password-Change: No\n");
2298 x_fprintf(x_stdout, "Password-Change-Error: "
2299 "%s\n.\n", error_string);
2300 } else {
2301 x_fprintf(x_stdout, "Password-Change: Yes\n");
2302 }
2303
2304 SAFE_FREE(error_string);
2305 }
2306 /* clear out the state */
2307 new_nt_pswd = data_blob_null;
2308 old_nt_hash_enc = data_blob_null;
2309 new_lm_pswd = data_blob_null;
2310 old_nt_hash_enc = data_blob_null;
2311 SAFE_FREE(full_username);
2312 SAFE_FREE(username);
2313 SAFE_FREE(domain);
2314 SAFE_FREE(newpswd);
2315 SAFE_FREE(oldpswd);
2316 x_fprintf(x_stdout, ".\n");
2317
2318 return;
2319 }
2320
2321 request = buf;
2322
2323 /* Indicates a base64 encoded structure */
2324 parameter = strstr_m(request, ":: ");
2325 if (!parameter) {
2326 parameter = strstr_m(request, ": ");
2327
2328 if (!parameter) {
2329 DEBUG(0, ("Parameter not found!\n"));
2330 x_fprintf(x_stdout, "Error: Parameter not found!\n.\n");
2331 return;
2332 }
2333
2334 parameter[0] ='\0';
2335 parameter++;
2336 parameter[0] ='\0';
2337 parameter++;
2338 } else {
2339 parameter[0] ='\0';
2340 parameter++;
2341 parameter[0] ='\0';
2342 parameter++;
2343 parameter[0] ='\0';
2344 parameter++;
2345
2346 base64_decode_inplace(parameter);
2347 }
2348
2349 if (strequal(request, "new-nt-password-blob")) {
2350 new_nt_pswd = strhex_to_data_blob(NULL, parameter);
2351 if (new_nt_pswd.length != 516) {
2352 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2353 "(got %d bytes, expected 516)\n.\n",
2354 parameter,
2355 (int)new_nt_pswd.length);
2356 new_nt_pswd = data_blob_null;
2357 }
2358 } else if (strequal(request, "old-nt-hash-blob")) {
2359 old_nt_hash_enc = strhex_to_data_blob(NULL, parameter);
2360 if (old_nt_hash_enc.length != 16) {
2361 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2362 "(got %d bytes, expected 16)\n.\n",
2363 parameter,
2364 (int)old_nt_hash_enc.length);
2365 old_nt_hash_enc = data_blob_null;
2366 }
2367 } else if (strequal(request, "new-lm-password-blob")) {
2368 new_lm_pswd = strhex_to_data_blob(NULL, parameter);
2369 if (new_lm_pswd.length != 516) {
2370 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2371 "(got %d bytes, expected 516)\n.\n",
2372 parameter,
2373 (int)new_lm_pswd.length);
2374 new_lm_pswd = data_blob_null;
2375 }
2376 }
2377 else if (strequal(request, "old-lm-hash-blob")) {
2378 old_lm_hash_enc = strhex_to_data_blob(NULL, parameter);
2379 if (old_lm_hash_enc.length != 16)
2380 {
2381 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2382 "(got %d bytes, expected 16)\n.\n",
2383 parameter,
2384 (int)old_lm_hash_enc.length);
2385 old_lm_hash_enc = data_blob_null;
2386 }
2387 } else if (strequal(request, "nt-domain")) {
2388 domain = smb_xstrdup(parameter);
2389 } else if(strequal(request, "username")) {
2390 username = smb_xstrdup(parameter);
2391 } else if(strequal(request, "full-username")) {
2392 username = smb_xstrdup(parameter);
2393 } else if(strequal(request, "new-password")) {
2394 newpswd = smb_xstrdup(parameter);
2395 } else if (strequal(request, "old-password")) {
2396 oldpswd = smb_xstrdup(parameter);
2397 } else {
2398 x_fprintf(x_stdout, "Error: Unknown request %s\n.\n", request);
2399 }
2400 }
2401
2402 static void manage_squid_request(struct ntlm_auth_state *state,
2403 stdio_helper_function fn)
2404 {
2405 char *buf;
2406 char tmp[INITIAL_BUFFER_SIZE+1];
2407 int length, buf_size = 0;
2408 char *c;
2409
2410 buf = talloc_strdup(state->mem_ctx, "");
2411 if (!buf) {
2412 DEBUG(0, ("Failed to allocate input buffer.\n"));
2413 x_fprintf(x_stderr, "ERR\n");
2414 exit(1);
2415 }
2416
2417 do {
2418
2419 /* this is not a typo - x_fgets doesn't work too well under
2420 * squid */
2421 if (fgets(tmp, sizeof(tmp)-1, stdin) == NULL) {
2422 if (ferror(stdin)) {
2423 DEBUG(1, ("fgets() failed! dying..... errno=%d "
2424 "(%s)\n", ferror(stdin),
2425 strerror(ferror(stdin))));
2426
2427 exit(1);
2428 }
2429 exit(0);
2430 }
2431
2432 buf = talloc_strdup_append_buffer(buf, tmp);
2433 buf_size += INITIAL_BUFFER_SIZE;
2434
2435 if (buf_size > MAX_BUFFER_SIZE) {
2436 DEBUG(2, ("Oversized message\n"));
2437 x_fprintf(x_stderr, "ERR\n");
2438 talloc_free(buf);
2439 return;
2440 }
2441
2442 c = strchr(buf, '\n');
2443 } while (c == NULL);
2444
2445 *c = '\0';
2446 length = c-buf;
2447
2448 DEBUG(10, ("Got '%s' from squid (length: %d).\n",buf,length));
2449
2450 if (buf[0] == '\0') {
2451 DEBUG(2, ("Invalid Request\n"));
2452 x_fprintf(x_stderr, "ERR\n");
2453 talloc_free(buf);
2454 return;
2455 }
2456
2457 fn(state, buf, length);
2458 talloc_free(buf);
2459 }
2460
2461
2462 static void squid_stream(enum stdio_helper_mode stdio_mode, stdio_helper_function fn) {
2463 TALLOC_CTX *mem_ctx;
2464 struct ntlm_auth_state *state;
2465
2466 /* initialize FDescs */
2467 x_setbuf(x_stdout, NULL);
2468 x_setbuf(x_stderr, NULL);
2469
2470 mem_ctx = talloc_init("ntlm_auth");
2471 if (!mem_ctx) {
2472 DEBUG(0, ("squid_stream: Failed to create talloc context\n"));
2473 x_fprintf(x_stderr, "ERR\n");
2474 exit(1);
2475 }
2476
2477 state = talloc_zero(mem_ctx, struct ntlm_auth_state);
2478 if (!state) {
2479 DEBUG(0, ("squid_stream: Failed to talloc ntlm_auth_state\n"));
2480 x_fprintf(x_stderr, "ERR\n");
2481 exit(1);
2482 }
2483
2484 state->mem_ctx = mem_ctx;
2485 state->helper_mode = stdio_mode;
2486
2487 while(1) {
2488 TALLOC_CTX *frame = talloc_stackframe();
2489 manage_squid_request(state, fn);
2490 TALLOC_FREE(frame);
2491 }
2492 }
2493
2494
2495 /* Authenticate a user with a challenge/response */
2496
2497 static bool check_auth_crap(void)
2498 {
2499 NTSTATUS nt_status;
2500 uint32 flags = 0;
2501 char lm_key[8];
2502 char user_session_key[16];
2503 char *hex_lm_key;
2504 char *hex_user_session_key;
2505 char *error_string;
2506 static uint8 zeros[16];
2507
2508 x_setbuf(x_stdout, NULL);
2509
2510 if (request_lm_key)
2511 flags |= WBFLAG_PAM_LMKEY;
2512
2513 if (request_user_session_key)
2514 flags |= WBFLAG_PAM_USER_SESSION_KEY;
2515
2516 flags |= WBFLAG_PAM_NT_STATUS_SQUASH;
2517
2518 nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
2519 opt_workstation,
2520 &opt_challenge,
2521 &opt_lm_response,
2522 &opt_nt_response,
2523 flags,
2524 (unsigned char *)lm_key,
2525 (unsigned char *)user_session_key,
2526 &error_string, NULL);
2527
2528 if (!NT_STATUS_IS_OK(nt_status)) {
2529 x_fprintf(x_stdout, "%s (0x%x)\n",
2530 error_string,
2531 NT_STATUS_V(nt_status));
2532 SAFE_FREE(error_string);
2533 return False;
2534 }
2535
2536 if (request_lm_key
2537 && (memcmp(zeros, lm_key,
2538 sizeof(lm_key)) != 0)) {
2539 hex_lm_key = hex_encode_talloc(talloc_tos(), (const unsigned char *)lm_key,
2540 sizeof(lm_key));
2541 x_fprintf(x_stdout, "LM_KEY: %s\n", hex_lm_key);
2542 TALLOC_FREE(hex_lm_key);
2543 }
2544 if (request_user_session_key
2545 && (memcmp(zeros, user_session_key,
2546 sizeof(user_session_key)) != 0)) {
2547 hex_user_session_key = hex_encode_talloc(talloc_tos(), (const unsigned char *)user_session_key,
2548 sizeof(user_session_key));
2549 x_fprintf(x_stdout, "NT_KEY: %s\n", hex_user_session_key);
2550 TALLOC_FREE(hex_user_session_key);
2551 }
2552
2553 return True;
2554 }
2555
2556 /* Main program */
2557
2558 enum {
2559 OPT_USERNAME = 1000,
2560 OPT_DOMAIN,
2561 OPT_WORKSTATION,
2562 OPT_CHALLENGE,
2563 OPT_RESPONSE,
2564 OPT_LM,
2565 OPT_NT,
2566 OPT_PASSWORD,
2567 OPT_LM_KEY,
2568 OPT_USER_SESSION_KEY,
2569 OPT_DIAGNOSTICS,
2570 OPT_REQUIRE_MEMBERSHIP,
2571 OPT_USE_CACHED_CREDS,
2572 OPT_PAM_WINBIND_CONF
2573 };
2574
2575 int main(int argc, const char **argv)
2576 {
2577 TALLOC_CTX *frame = talloc_stackframe();
2578 int opt;
2579 static const char *helper_protocol;
2580 static int diagnostics;
2581
2582 static const char *hex_challenge;
2583 static const char *hex_lm_response;
2584 static const char *hex_nt_response;
2585
2586 poptContext pc;
2587
2588 /* NOTE: DO NOT change this interface without considering the implications!
2589 This is an external interface, which other programs will use to interact
2590 with this helper.
2591 */
2592
2593 /* We do not use single-letter command abbreviations, because they harm future
2594 interface stability. */
2595
2596 struct poptOption long_options[] = {
2597 POPT_AUTOHELP
2598 { "helper-protocol", 0, POPT_ARG_STRING, &helper_protocol, OPT_DOMAIN, "operate as a stdio-based helper", "helper protocol to use"},
2599 { "username", 0, POPT_ARG_STRING, &opt_username, OPT_USERNAME, "username"},
2600 { "domain", 0, POPT_ARG_STRING, &opt_domain, OPT_DOMAIN, "domain name"},
2601 { "workstation", 0, POPT_ARG_STRING, &opt_workstation, OPT_WORKSTATION, "workstation"},
2602 { "challenge", 0, POPT_ARG_STRING, &hex_challenge, OPT_CHALLENGE, "challenge (HEX encoded)"},
2603 { "lm-response", 0, POPT_ARG_STRING, &hex_lm_response, OPT_LM, "LM Response to the challenge (HEX encoded)"},
2604 { "nt-response", 0, POPT_ARG_STRING, &hex_nt_response, OPT_NT, "NT or NTLMv2 Response to the challenge (HEX encoded)"},
2605 { "password", 0, POPT_ARG_STRING, &opt_password, OPT_PASSWORD, "User's plaintext password"},
2606 { "request-lm-key", 0, POPT_ARG_NONE, &request_lm_key, OPT_LM_KEY, "Retrieve LM session key"},
2607 { "request-nt-key", 0, POPT_ARG_NONE, &request_user_session_key, OPT_USER_SESSION_KEY, "Retrieve User (NT) session key"},
2608 { "use-cached-creds", 0, POPT_ARG_NONE, &use_cached_creds, OPT_USE_CACHED_CREDS, "Use cached credentials if no password is given"},
2609 { "diagnostics", 0, POPT_ARG_NONE, &diagnostics,
2610 OPT_DIAGNOSTICS,
2611 "Perform diagnostics on the authentication chain"},
2612 { "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" },
2613 { "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" },
2614 POPT_COMMON_CONFIGFILE
2615 POPT_COMMON_VERSION
2616 POPT_TABLEEND
2617 };
2618
2619 /* Samba client initialisation */
2620 load_case_tables();
2621
2622 setup_logging("ntlm_auth", DEBUG_STDERR);
2623
2624 /* Parse options */
2625
2626 pc = poptGetContext("ntlm_auth", argc, argv, long_options, 0);
2627
2628 /* Parse command line options */
2629
2630 if (argc == 1) {
2631 poptPrintHelp(pc, stderr, 0);
2632 return 1;
2633 }
2634
2635 while((opt = poptGetNextOpt(pc)) != -1) {
2636 /* Get generic config options like --configfile */
2637 }
2638
2639 poptFreeContext(pc);
2640
2641 if (!lp_load(get_dyn_CONFIGFILE(), True, False, False, True)) {
2642 d_fprintf(stderr, "ntlm_auth: error opening config file %s. Error was %s\n",
2643 get_dyn_CONFIGFILE(), strerror(errno));
2644 exit(1);
2645 }
2646
2647 pc = poptGetContext(NULL, argc, (const char **)argv, long_options,
2648 POPT_CONTEXT_KEEP_FIRST);
2649
2650 while((opt = poptGetNextOpt(pc)) != -1) {
2651 switch (opt) {
2652 case OPT_CHALLENGE:
2653 opt_challenge = strhex_to_data_blob(NULL, hex_challenge);
2654 if (opt_challenge.length != 8) {
2655 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
2656 hex_challenge,
2657 (int)opt_challenge.length);
2658 exit(1);
2659 }
2660 break;
2661 case OPT_LM:
2662 opt_lm_response = strhex_to_data_blob(NULL, hex_lm_response);
2663 if (opt_lm_response.length != 24) {
2664 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
2665 hex_lm_response,
2666 (int)opt_lm_response.length);
2667 exit(1);
2668 }
2669 break;
2670
2671 case OPT_NT:
2672 opt_nt_response = strhex_to_data_blob(NULL, hex_nt_response);
2673 if (opt_nt_response.length < 24) {
2674 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
2675 hex_nt_response,
2676 (int)opt_nt_response.length);
2677 exit(1);
2678 }
2679 break;
2680
2681 case OPT_REQUIRE_MEMBERSHIP:
2682 if (StrnCaseCmp("S-", require_membership_of, 2) == 0) {
2683 require_membership_of_sid = require_membership_of;
2684 }
2685 break;
2686 }
2687 }
2688
2689 if (opt_username) {
2690 char *domain = SMB_STRDUP(opt_username);
2691 char *p = strchr_m(domain, *lp_winbind_separator());
2692 if (p) {
2693 opt_username = p+1;
2694 *p = '\0';
2695 if (opt_domain && !strequal(opt_domain, domain)) {
2696 x_fprintf(x_stderr, "Domain specified in username (%s) "
2697 "doesn't match specified domain (%s)!\n\n",
2698 domain, opt_domain);
2699 poptPrintHelp(pc, stderr, 0);
2700 exit(1);
2701 }
2702 opt_domain = domain;
2703 } else {
2704 SAFE_FREE(domain);
2705 }
2706 }
2707
2708 /* Note: if opt_domain is "" then send no domain */
2709 if (opt_domain == NULL) {
2710 opt_domain = get_winbind_domain();
2711 }
2712
2713 if (opt_workstation == NULL) {
2714 opt_workstation = "";
2715 }
2716
2717 if (helper_protocol) {
2718 int i;
2719 for (i=0; i<NUM_HELPER_MODES; i++) {
2720 if (strcmp(helper_protocol, stdio_helper_protocols[i].name) == 0) {
2721 squid_stream(stdio_helper_protocols[i].mode, stdio_helper_protocols[i].fn);
2722 exit(0);
2723 }
2724 }
2725 x_fprintf(x_stderr, "unknown helper protocol [%s]\n\nValid helper protools:\n\n", helper_protocol);
2726
2727 for (i=0; i<NUM_HELPER_MODES; i++) {
2728 x_fprintf(x_stderr, "%s\n", stdio_helper_protocols[i].name);
2729 }
2730
2731 exit(1);
2732 }
2733
2734 if (!opt_username || !*opt_username) {
2735 x_fprintf(x_stderr, "username must be specified!\n\n");
2736 poptPrintHelp(pc, stderr, 0);
2737 exit(1);
2738 }
2739
2740 if (opt_challenge.length) {
2741 if (!check_auth_crap()) {
2742 exit(1);
2743 }
2744 exit(0);
2745 }
2746
2747 if (!opt_password) {
2748 opt_password = getpass("password: ");
2749 }
2750
2751 if (diagnostics) {
2752 if (!diagnose_ntlm_auth()) {
2753 return 1;
2754 }
2755 } else {
2756 fstring user;
2757
2758 fstr_sprintf(user, "%s%c%s", opt_domain, winbind_separator(), opt_username);
2759 if (!check_plaintext_auth(user, opt_password, True)) {
2760 return 1;
2761 }
2762 }
2763
2764 /* Exit code */
2765
2766 poptFreeContext(pc);
2767 TALLOC_FREE(frame);
2768 return 0;
2769 }
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