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vfs: Make function pointer names consistent. They all end in _fn
[Samba/gebeck_regimport.git] / source3 / utils / ntlm_auth.c
blob00c7d4dbba06f4adebe746f887ad7609bc2f006f
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 "../auth/ntlmssp/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 #include "../lib/util/asn1.h"
39
40 #ifndef PAM_WINBIND_CONFIG_FILE
41 #define PAM_WINBIND_CONFIG_FILE "/etc/security/pam_winbind.conf"
42 #endif
43
44 #define WINBIND_KRB5_AUTH 0x00000080
45
46 #undef DBGC_CLASS
47 #define DBGC_CLASS DBGC_WINBIND
48
49 #define INITIAL_BUFFER_SIZE 300
50 #define MAX_BUFFER_SIZE 630000
51
52 enum stdio_helper_mode {
53 SQUID_2_4_BASIC,
54 SQUID_2_5_BASIC,
55 SQUID_2_5_NTLMSSP,
56 NTLMSSP_CLIENT_1,
57 GSS_SPNEGO,
58 GSS_SPNEGO_CLIENT,
59 NTLM_SERVER_1,
60 NTLM_CHANGE_PASSWORD_1,
61 NUM_HELPER_MODES
62 };
63
64 enum ntlm_auth_cli_state {
65 CLIENT_INITIAL = 0,
66 CLIENT_RESPONSE,
67 CLIENT_FINISHED,
68 CLIENT_ERROR
69 };
70
71 enum ntlm_auth_svr_state {
72 SERVER_INITIAL = 0,
73 SERVER_CHALLENGE,
74 SERVER_FINISHED,
75 SERVER_ERROR
76 };
77
78 struct ntlm_auth_state {
79 TALLOC_CTX *mem_ctx;
80 enum stdio_helper_mode helper_mode;
81 enum ntlm_auth_cli_state cli_state;
82 enum ntlm_auth_svr_state svr_state;
83 struct ntlmssp_state *ntlmssp_state;
84 uint32_t neg_flags;
85 char *want_feature_list;
86 char *spnego_mech;
87 char *spnego_mech_oid;
88 bool have_session_key;
89 DATA_BLOB session_key;
90 DATA_BLOB initial_message;
91 };
92
93 typedef void (*stdio_helper_function)(struct ntlm_auth_state *state, char *buf,
94 int length);
95
96 static void manage_squid_basic_request (struct ntlm_auth_state *state,
97 char *buf, int length);
98
99 static void manage_squid_ntlmssp_request (struct ntlm_auth_state *state,
100 char *buf, int length);
101
102 static void manage_client_ntlmssp_request (struct ntlm_auth_state *state,
103 char *buf, int length);
104
105 static void manage_gss_spnego_request (struct ntlm_auth_state *state,
106 char *buf, int length);
107
108 static void manage_gss_spnego_client_request (struct ntlm_auth_state *state,
109 char *buf, int length);
110
111 static void manage_ntlm_server_1_request (struct ntlm_auth_state *state,
112 char *buf, int length);
113
114 static void manage_ntlm_change_password_1_request(struct ntlm_auth_state *state,
115 char *buf, int length);
116
117 static const struct {
118 enum stdio_helper_mode mode;
119 const char *name;
120 stdio_helper_function fn;
121 } stdio_helper_protocols[] = {
122 { SQUID_2_4_BASIC, "squid-2.4-basic", manage_squid_basic_request},
123 { SQUID_2_5_BASIC, "squid-2.5-basic", manage_squid_basic_request},
124 { SQUID_2_5_NTLMSSP, "squid-2.5-ntlmssp", manage_squid_ntlmssp_request},
125 { NTLMSSP_CLIENT_1, "ntlmssp-client-1", manage_client_ntlmssp_request},
126 { GSS_SPNEGO, "gss-spnego", manage_gss_spnego_request},
127 { GSS_SPNEGO_CLIENT, "gss-spnego-client", manage_gss_spnego_client_request},
128 { NTLM_SERVER_1, "ntlm-server-1", manage_ntlm_server_1_request},
129 { NTLM_CHANGE_PASSWORD_1, "ntlm-change-password-1", manage_ntlm_change_password_1_request},
130 { NUM_HELPER_MODES, NULL, NULL}
131 };
132
133 const char *opt_username;
134 const char *opt_domain;
135 const char *opt_workstation;
136 const char *opt_password;
137 static DATA_BLOB opt_challenge;
138 static DATA_BLOB opt_lm_response;
139 static DATA_BLOB opt_nt_response;
140 static int request_lm_key;
141 static int request_user_session_key;
142 static int use_cached_creds;
143
144 static const char *require_membership_of;
145 static const char *require_membership_of_sid;
146 static const char *opt_pam_winbind_conf;
147
148 static char winbind_separator(void)
149 {
150 struct winbindd_response response;
151 static bool got_sep;
152 static char sep;
153
154 if (got_sep)
155 return sep;
156
157 ZERO_STRUCT(response);
158
159 /* Send off request */
160
161 if (winbindd_request_response(WINBINDD_INFO, NULL, &response) !=
162 NSS_STATUS_SUCCESS) {
163 d_printf("could not obtain winbind separator!\n");
164 return *lp_winbind_separator();
165 }
166
167 sep = response.data.info.winbind_separator;
168 got_sep = True;
169
170 if (!sep) {
171 d_printf("winbind separator was NULL!\n");
172 return *lp_winbind_separator();
173 }
174
175 return sep;
176 }
177
178 const char *get_winbind_domain(void)
179 {
180 struct winbindd_response response;
181
182 static fstring winbind_domain;
183 if (*winbind_domain) {
184 return winbind_domain;
185 }
186
187 ZERO_STRUCT(response);
188
189 /* Send off request */
190
191 if (winbindd_request_response(WINBINDD_DOMAIN_NAME, NULL, &response) !=
192 NSS_STATUS_SUCCESS) {
193 DEBUG(0, ("could not obtain winbind domain name!\n"));
194 return lp_workgroup();
195 }
196
197 fstrcpy(winbind_domain, response.data.domain_name);
198
199 return winbind_domain;
200
201 }
202
203 const char *get_winbind_netbios_name(void)
204 {
205 struct winbindd_response response;
206
207 static fstring winbind_netbios_name;
208
209 if (*winbind_netbios_name) {
210 return winbind_netbios_name;
211 }
212
213 ZERO_STRUCT(response);
214
215 /* Send off request */
216
217 if (winbindd_request_response(WINBINDD_NETBIOS_NAME, NULL, &response) !=
218 NSS_STATUS_SUCCESS) {
219 DEBUG(0, ("could not obtain winbind netbios name!\n"));
220 return lp_netbios_name();
221 }
222
223 fstrcpy(winbind_netbios_name, response.data.netbios_name);
224
225 return winbind_netbios_name;
226
227 }
228
229 DATA_BLOB get_challenge(void)
230 {
231 static DATA_BLOB chal;
232 if (opt_challenge.length)
233 return opt_challenge;
234
235 chal = data_blob(NULL, 8);
236
237 generate_random_buffer(chal.data, chal.length);
238 return chal;
239 }
240
241 /* Copy of parse_domain_user from winbindd_util.c. Parse a string of the
242 form DOMAIN/user into a domain and a user */
243
244 static bool parse_ntlm_auth_domain_user(const char *domuser, fstring domain,
245 fstring user)
246 {
247
248 char *p = strchr(domuser,winbind_separator());
249
250 if (!p) {
251 return False;
252 }
253
254 fstrcpy(user, p+1);
255 fstrcpy(domain, domuser);
256 domain[PTR_DIFF(p, domuser)] = 0;
257 strupper_m(domain);
258
259 return True;
260 }
261
262 static bool get_require_membership_sid(void) {
263 struct winbindd_request request;
264 struct winbindd_response response;
265
266 if (!require_membership_of) {
267 return True;
268 }
269
270 if (require_membership_of_sid) {
271 return True;
272 }
273
274 /* Otherwise, ask winbindd for the name->sid request */
275
276 ZERO_STRUCT(request);
277 ZERO_STRUCT(response);
278
279 if (!parse_ntlm_auth_domain_user(require_membership_of,
280 request.data.name.dom_name,
281 request.data.name.name)) {
282 DEBUG(0, ("Could not parse %s into seperate domain/name parts!\n",
283 require_membership_of));
284 return False;
285 }
286
287 if (winbindd_request_response(WINBINDD_LOOKUPNAME, &request, &response) !=
288 NSS_STATUS_SUCCESS) {
289 DEBUG(0, ("Winbindd lookupname failed to resolve %s into a SID!\n",
290 require_membership_of));
291 return False;
292 }
293
294 require_membership_of_sid = SMB_STRDUP(response.data.sid.sid);
295
296 if (require_membership_of_sid)
297 return True;
298
299 return False;
300 }
301
302 /*
303 * Get some configuration from pam_winbind.conf to see if we
304 * need to contact trusted domain
305 */
306
307 int get_pam_winbind_config()
308 {
309 int ctrl = 0;
310 dictionary *d = NULL;
311
312 if (!opt_pam_winbind_conf || !*opt_pam_winbind_conf) {
313 opt_pam_winbind_conf = PAM_WINBIND_CONFIG_FILE;
314 }
315
316 d = iniparser_load(discard_const_p(char, opt_pam_winbind_conf));
317
318 if (!d) {
319 return 0;
320 }
321
322 if (iniparser_getboolean(d, discard_const_p(char, "global:krb5_auth"), false)) {
323 ctrl |= WINBIND_KRB5_AUTH;
324 }
325
326 iniparser_freedict(d);
327
328 return ctrl;
329 }
330
331 /* Authenticate a user with a plaintext password */
332
333 static bool check_plaintext_auth(const char *user, const char *pass,
334 bool stdout_diagnostics)
335 {
336 struct winbindd_request request;
337 struct winbindd_response response;
338 NSS_STATUS result;
339
340 if (!get_require_membership_sid()) {
341 return False;
342 }
343
344 /* Send off request */
345
346 ZERO_STRUCT(request);
347 ZERO_STRUCT(response);
348
349 fstrcpy(request.data.auth.user, user);
350 fstrcpy(request.data.auth.pass, pass);
351 if (require_membership_of_sid) {
352 strlcpy(request.data.auth.require_membership_of_sid,
353 require_membership_of_sid,
354 sizeof(request.data.auth.require_membership_of_sid));
355 }
356
357 result = winbindd_request_response(WINBINDD_PAM_AUTH, &request, &response);
358
359 /* Display response */
360
361 if (stdout_diagnostics) {
362 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
363 d_printf("Reading winbind reply failed! (0x01)\n");
364 }
365
366 d_printf("%s: %s (0x%x)\n",
367 response.data.auth.nt_status_string,
368 response.data.auth.error_string,
369 response.data.auth.nt_status);
370 } else {
371 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
372 DEBUG(1, ("Reading winbind reply failed! (0x01)\n"));
373 }
374
375 DEBUG(3, ("%s: %s (0x%x)\n",
376 response.data.auth.nt_status_string,
377 response.data.auth.error_string,
378 response.data.auth.nt_status));
379 }
380
381 return (result == NSS_STATUS_SUCCESS);
382 }
383
384 /* authenticate a user with an encrypted username/password */
385
386 NTSTATUS contact_winbind_auth_crap(const char *username,
387 const char *domain,
388 const char *workstation,
389 const DATA_BLOB *challenge,
390 const DATA_BLOB *lm_response,
391 const DATA_BLOB *nt_response,
392 uint32 flags,
393 uint8 lm_key[8],
394 uint8 user_session_key[16],
395 char **error_string,
396 char **unix_name)
397 {
398 NTSTATUS nt_status;
399 NSS_STATUS result;
400 struct winbindd_request request;
401 struct winbindd_response response;
402
403 if (!get_require_membership_sid()) {
404 return NT_STATUS_INVALID_PARAMETER;
405 }
406
407 ZERO_STRUCT(request);
408 ZERO_STRUCT(response);
409
410 request.flags = flags;
411
412 request.data.auth_crap.logon_parameters = MSV1_0_ALLOW_WORKSTATION_TRUST_ACCOUNT | MSV1_0_ALLOW_SERVER_TRUST_ACCOUNT;
413
414 if (require_membership_of_sid)
415 fstrcpy(request.data.auth_crap.require_membership_of_sid, require_membership_of_sid);
416
417 fstrcpy(request.data.auth_crap.user, username);
418 fstrcpy(request.data.auth_crap.domain, domain);
419
420 fstrcpy(request.data.auth_crap.workstation,
421 workstation);
422
423 memcpy(request.data.auth_crap.chal, challenge->data, MIN(challenge->length, 8));
424
425 if (lm_response && lm_response->length) {
426 memcpy(request.data.auth_crap.lm_resp,
427 lm_response->data,
428 MIN(lm_response->length, sizeof(request.data.auth_crap.lm_resp)));
429 request.data.auth_crap.lm_resp_len = lm_response->length;
430 }
431
432 if (nt_response && nt_response->length) {
433 if (nt_response->length > sizeof(request.data.auth_crap.nt_resp)) {
434 request.flags = request.flags | WBFLAG_BIG_NTLMV2_BLOB;
435 request.extra_len = nt_response->length;
436 request.extra_data.data = SMB_MALLOC_ARRAY(char, request.extra_len);
437 if (request.extra_data.data == NULL) {
438 return NT_STATUS_NO_MEMORY;
439 }
440 memcpy(request.extra_data.data, nt_response->data,
441 nt_response->length);
442
443 } else {
444 memcpy(request.data.auth_crap.nt_resp,
445 nt_response->data, nt_response->length);
446 }
447 request.data.auth_crap.nt_resp_len = nt_response->length;
448 }
449
450 result = winbindd_request_response(WINBINDD_PAM_AUTH_CRAP, &request, &response);
451 SAFE_FREE(request.extra_data.data);
452
453 /* Display response */
454
455 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
456 nt_status = NT_STATUS_UNSUCCESSFUL;
457 if (error_string)
458 *error_string = smb_xstrdup("Reading winbind reply failed!");
459 winbindd_free_response(&response);
460 return nt_status;
461 }
462
463 nt_status = (NT_STATUS(response.data.auth.nt_status));
464 if (!NT_STATUS_IS_OK(nt_status)) {
465 if (error_string)
466 *error_string = smb_xstrdup(response.data.auth.error_string);
467 winbindd_free_response(&response);
468 return nt_status;
469 }
470
471 if ((flags & WBFLAG_PAM_LMKEY) && lm_key) {
472 memcpy(lm_key, response.data.auth.first_8_lm_hash,
473 sizeof(response.data.auth.first_8_lm_hash));
474 }
475 if ((flags & WBFLAG_PAM_USER_SESSION_KEY) && user_session_key) {
476 memcpy(user_session_key, response.data.auth.user_session_key,
477 sizeof(response.data.auth.user_session_key));
478 }
479
480 if (flags & WBFLAG_PAM_UNIX_NAME) {
481 *unix_name = SMB_STRDUP(response.data.auth.unix_username);
482 if (!*unix_name) {
483 winbindd_free_response(&response);
484 return NT_STATUS_NO_MEMORY;
485 }
486 }
487
488 winbindd_free_response(&response);
489 return nt_status;
490 }
491
492 /* contact server to change user password using auth crap */
493 static NTSTATUS contact_winbind_change_pswd_auth_crap(const char *username,
494 const char *domain,
495 const DATA_BLOB new_nt_pswd,
496 const DATA_BLOB old_nt_hash_enc,
497 const DATA_BLOB new_lm_pswd,
498 const DATA_BLOB old_lm_hash_enc,
499 char **error_string)
500 {
501 NTSTATUS nt_status;
502 NSS_STATUS result;
503 struct winbindd_request request;
504 struct winbindd_response response;
505
506 if (!get_require_membership_sid())
507 {
508 if(error_string)
509 *error_string = smb_xstrdup("Can't get membership sid.");
510 return NT_STATUS_INVALID_PARAMETER;
511 }
512
513 ZERO_STRUCT(request);
514 ZERO_STRUCT(response);
515
516 if(username != NULL)
517 fstrcpy(request.data.chng_pswd_auth_crap.user, username);
518 if(domain != NULL)
519 fstrcpy(request.data.chng_pswd_auth_crap.domain,domain);
520
521 if(new_nt_pswd.length)
522 {
523 memcpy(request.data.chng_pswd_auth_crap.new_nt_pswd, new_nt_pswd.data, sizeof(request.data.chng_pswd_auth_crap.new_nt_pswd));
524 request.data.chng_pswd_auth_crap.new_nt_pswd_len = new_nt_pswd.length;
525 }
526
527 if(old_nt_hash_enc.length)
528 {
529 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));
530 request.data.chng_pswd_auth_crap.old_nt_hash_enc_len = old_nt_hash_enc.length;
531 }
532
533 if(new_lm_pswd.length)
534 {
535 memcpy(request.data.chng_pswd_auth_crap.new_lm_pswd, new_lm_pswd.data, sizeof(request.data.chng_pswd_auth_crap.new_lm_pswd));
536 request.data.chng_pswd_auth_crap.new_lm_pswd_len = new_lm_pswd.length;
537 }
538
539 if(old_lm_hash_enc.length)
540 {
541 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));
542 request.data.chng_pswd_auth_crap.old_lm_hash_enc_len = old_lm_hash_enc.length;
543 }
544
545 result = winbindd_request_response(WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP, &request, &response);
546
547 /* Display response */
548
549 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0))
550 {
551 nt_status = NT_STATUS_UNSUCCESSFUL;
552 if (error_string)
553 *error_string = smb_xstrdup("Reading winbind reply failed!");
554 winbindd_free_response(&response);
555 return nt_status;
556 }
557
558 nt_status = (NT_STATUS(response.data.auth.nt_status));
559 if (!NT_STATUS_IS_OK(nt_status))
560 {
561 if (error_string)
562 *error_string = smb_xstrdup(response.data.auth.error_string);
563 winbindd_free_response(&response);
564 return nt_status;
565 }
566
567 winbindd_free_response(&response);
568
569 return nt_status;
570 }
571
572 static NTSTATUS winbind_pw_check(struct ntlmssp_state *ntlmssp_state, TALLOC_CTX *mem_ctx,
573 DATA_BLOB *user_session_key, DATA_BLOB *lm_session_key)
574 {
575 static const char zeros[16] = { 0, };
576 NTSTATUS nt_status;
577 char *error_string = NULL;
578 uint8 lm_key[8];
579 uint8 user_sess_key[16];
580 char *unix_name = NULL;
581
582 nt_status = contact_winbind_auth_crap(ntlmssp_state->user, ntlmssp_state->domain,
583 ntlmssp_state->client.netbios_name,
584 &ntlmssp_state->chal,
585 &ntlmssp_state->lm_resp,
586 &ntlmssp_state->nt_resp,
587 WBFLAG_PAM_LMKEY | WBFLAG_PAM_USER_SESSION_KEY | WBFLAG_PAM_UNIX_NAME,
588 lm_key, user_sess_key,
589 &error_string, &unix_name);
590
591 if (NT_STATUS_IS_OK(nt_status)) {
592 if (memcmp(lm_key, zeros, 8) != 0) {
593 *lm_session_key = data_blob_talloc(mem_ctx, NULL, 16);
594 memcpy(lm_session_key->data, lm_key, 8);
595 memset(lm_session_key->data+8, '\0', 8);
596 }
597
598 if (memcmp(user_sess_key, zeros, 16) != 0) {
599 *user_session_key = data_blob_talloc(mem_ctx, user_sess_key, 16);
600 }
601 ntlmssp_state->callback_private = talloc_strdup(ntlmssp_state,
602 unix_name);
603 } else {
604 DEBUG(NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED) ? 0 : 3,
605 ("Login for user [%s]\\[%s]@[%s] failed due to [%s]\n",
606 ntlmssp_state->domain, ntlmssp_state->user,
607 ntlmssp_state->client.netbios_name,
608 error_string ? error_string : "unknown error (NULL)"));
609 ntlmssp_state->callback_private = NULL;
610 }
611
612 SAFE_FREE(error_string);
613 SAFE_FREE(unix_name);
614 return nt_status;
615 }
616
617 static NTSTATUS local_pw_check(struct ntlmssp_state *ntlmssp_state, TALLOC_CTX *mem_ctx,
618 DATA_BLOB *user_session_key, DATA_BLOB *lm_session_key)
619 {
620 NTSTATUS nt_status;
621 struct samr_Password lm_pw, nt_pw;
622
623 nt_lm_owf_gen (opt_password, nt_pw.hash, lm_pw.hash);
624
625 nt_status = ntlm_password_check(mem_ctx,
626 true, true, 0,
627 &ntlmssp_state->chal,
628 &ntlmssp_state->lm_resp,
629 &ntlmssp_state->nt_resp,
630 ntlmssp_state->user,
631 ntlmssp_state->user,
632 ntlmssp_state->domain,
633 &lm_pw, &nt_pw, user_session_key, lm_session_key);
634
635 if (NT_STATUS_IS_OK(nt_status)) {
636 ntlmssp_state->callback_private = talloc_asprintf(ntlmssp_state,
637 "%s%c%s", ntlmssp_state->domain,
638 *lp_winbind_separator(),
639 ntlmssp_state->user);
640 } else {
641 DEBUG(3, ("Login for user [%s]\\[%s]@[%s] failed due to [%s]\n",
642 ntlmssp_state->domain, ntlmssp_state->user,
643 ntlmssp_state->client.netbios_name,
644 nt_errstr(nt_status)));
645 ntlmssp_state->callback_private = NULL;
646 }
647 return nt_status;
648 }
649
650 static NTSTATUS ntlm_auth_start_ntlmssp_client(struct ntlmssp_state **client_ntlmssp_state)
651 {
652 NTSTATUS status;
653 if ( (opt_username == NULL) || (opt_domain == NULL) ) {
654 status = NT_STATUS_UNSUCCESSFUL;
655 DEBUG(1, ("Need username and domain for NTLMSSP\n"));
656 return NT_STATUS_INVALID_PARAMETER;
657 }
658
659 status = ntlmssp_client_start(NULL,
660 lp_netbios_name(),
661 lp_workgroup(),
662 lp_client_ntlmv2_auth(),
663 client_ntlmssp_state);
664
665 if (!NT_STATUS_IS_OK(status)) {
666 DEBUG(1, ("Could not start NTLMSSP client: %s\n",
667 nt_errstr(status)));
668 TALLOC_FREE(*client_ntlmssp_state);
669 return status;
670 }
671
672 status = ntlmssp_set_username(*client_ntlmssp_state, opt_username);
673
674 if (!NT_STATUS_IS_OK(status)) {
675 DEBUG(1, ("Could not set username: %s\n",
676 nt_errstr(status)));
677 TALLOC_FREE(*client_ntlmssp_state);
678 return status;
679 }
680
681 status = ntlmssp_set_domain(*client_ntlmssp_state, opt_domain);
682
683 if (!NT_STATUS_IS_OK(status)) {
684 DEBUG(1, ("Could not set domain: %s\n",
685 nt_errstr(status)));
686 TALLOC_FREE(*client_ntlmssp_state);
687 return status;
688 }
689
690 if (opt_password) {
691 status = ntlmssp_set_password(*client_ntlmssp_state, opt_password);
692
693 if (!NT_STATUS_IS_OK(status)) {
694 DEBUG(1, ("Could not set password: %s\n",
695 nt_errstr(status)));
696 TALLOC_FREE(*client_ntlmssp_state);
697 return status;
698 }
699 }
700
701 return NT_STATUS_OK;
702 }
703
704 static NTSTATUS ntlm_auth_start_ntlmssp_server(struct ntlmssp_state **ntlmssp_state)
705 {
706 NTSTATUS status;
707 const char *netbios_name;
708 const char *netbios_domain;
709 const char *dns_name;
710 char *dns_domain;
711 bool is_standalone = false;
712
713 if (opt_password) {
714 netbios_name = lp_netbios_name();
715 netbios_domain = lp_workgroup();
716 } else {
717 netbios_name = get_winbind_netbios_name();
718 netbios_domain = get_winbind_domain();
719 }
720 /* This should be a 'netbios domain -> DNS domain' mapping */
721 dns_domain = get_mydnsdomname(talloc_tos());
722 if (dns_domain) {
723 strlower_m(dns_domain);
724 }
725 dns_name = get_mydnsfullname();
726
727 status = ntlmssp_server_start(NULL,
728 is_standalone,
729 netbios_name,
730 netbios_domain,
731 dns_name,
732 dns_domain,
733 ntlmssp_state);
734 if (!NT_STATUS_IS_OK(status)) {
735 DEBUG(1, ("Could not start NTLMSSP server: %s\n",
736 nt_errstr(status)));
737 return status;
738 }
739
740 (*ntlmssp_state)->neg_flags |=
741 (NTLMSSP_NEGOTIATE_SIGN |
742 NTLMSSP_NEGOTIATE_SEAL);
743
744 /* Have we been given a local password, or should we ask winbind? */
745 if (opt_password) {
746 (*ntlmssp_state)->check_password = local_pw_check;
747 } else {
748 (*ntlmssp_state)->check_password = winbind_pw_check;
749 }
750 return NT_STATUS_OK;
751 }
752
753 /*******************************************************************
754 Used by firefox to drive NTLM auth to IIS servers.
755 *******************************************************************/
756
757 static NTSTATUS do_ccache_ntlm_auth(DATA_BLOB initial_msg, DATA_BLOB challenge_msg,
758 DATA_BLOB *reply)
759 {
760 struct winbindd_request wb_request;
761 struct winbindd_response wb_response;
762 int ctrl = 0;
763 NSS_STATUS result;
764
765 /* get winbindd to do the ntlmssp step on our behalf */
766 ZERO_STRUCT(wb_request);
767 ZERO_STRUCT(wb_response);
768
769 /*
770 * This is tricky here. If we set krb5_auth in pam_winbind.conf
771 * creds for users in trusted domain will be stored the winbindd
772 * child of the trusted domain. If we ask the primary domain for
773 * ntlm_ccache_auth, it will fail. So, we have to ask the trusted
774 * domain's child for ccache_ntlm_auth. that is to say, we have to
775 * set WBFLAG_PAM_CONTACT_TRUSTDOM in request.flags.
776 */
777 ctrl = get_pam_winbind_config();
778
779 if (ctrl & WINBIND_KRB5_AUTH) {
780 wb_request.flags |= WBFLAG_PAM_CONTACT_TRUSTDOM;
781 }
782
783 fstr_sprintf(wb_request.data.ccache_ntlm_auth.user,
784 "%s%c%s", opt_domain, winbind_separator(), opt_username);
785 wb_request.data.ccache_ntlm_auth.uid = geteuid();
786 wb_request.data.ccache_ntlm_auth.initial_blob_len = initial_msg.length;
787 wb_request.data.ccache_ntlm_auth.challenge_blob_len = challenge_msg.length;
788 wb_request.extra_len = initial_msg.length + challenge_msg.length;
789
790 if (wb_request.extra_len > 0) {
791 wb_request.extra_data.data = SMB_MALLOC_ARRAY(char, wb_request.extra_len);
792 if (wb_request.extra_data.data == NULL) {
793 return NT_STATUS_NO_MEMORY;
794 }
795
796 memcpy(wb_request.extra_data.data, initial_msg.data, initial_msg.length);
797 memcpy(wb_request.extra_data.data + initial_msg.length,
798 challenge_msg.data, challenge_msg.length);
799 }
800
801 result = winbindd_request_response(WINBINDD_CCACHE_NTLMAUTH, &wb_request, &wb_response);
802 SAFE_FREE(wb_request.extra_data.data);
803
804 if (result != NSS_STATUS_SUCCESS) {
805 winbindd_free_response(&wb_response);
806 return NT_STATUS_UNSUCCESSFUL;
807 }
808
809 if (reply) {
810 *reply = data_blob(wb_response.extra_data.data,
811 wb_response.data.ccache_ntlm_auth.auth_blob_len);
812 if (wb_response.data.ccache_ntlm_auth.auth_blob_len > 0 &&
813 reply->data == NULL) {
814 winbindd_free_response(&wb_response);
815 return NT_STATUS_NO_MEMORY;
816 }
817 }
818
819 winbindd_free_response(&wb_response);
820 return NT_STATUS_MORE_PROCESSING_REQUIRED;
821 }
822
823 static void manage_squid_ntlmssp_request_int(struct ntlm_auth_state *state,
824 char *buf, int length,
825 TALLOC_CTX *mem_ctx,
826 char **response)
827 {
828 DATA_BLOB request, reply;
829 NTSTATUS nt_status;
830
831 if (strlen(buf) < 2) {
832 DEBUG(1, ("NTLMSSP query [%s] invalid\n", buf));
833 *response = talloc_strdup(mem_ctx, "BH NTLMSSP query invalid");
834 return;
835 }
836
837 if (strlen(buf) > 3) {
838 if(strncmp(buf, "SF ", 3) == 0){
839 DEBUG(10, ("Setting flags to negotioate\n"));
840 TALLOC_FREE(state->want_feature_list);
841 state->want_feature_list = talloc_strdup(state->mem_ctx,
842 buf+3);
843 *response = talloc_strdup(mem_ctx, "OK");
844 return;
845 }
846 request = base64_decode_data_blob(buf + 3);
847 } else {
848 request = data_blob_null;
849 }
850
851 if ((strncmp(buf, "PW ", 3) == 0)) {
852 /* The calling application wants us to use a local password
853 * (rather than winbindd) */
854
855 opt_password = SMB_STRNDUP((const char *)request.data,
856 request.length);
857
858 if (opt_password == NULL) {
859 DEBUG(1, ("Out of memory\n"));
860 *response = talloc_strdup(mem_ctx, "BH Out of memory");
861 data_blob_free(&request);
862 return;
863 }
864
865 *response = talloc_strdup(mem_ctx, "OK");
866 data_blob_free(&request);
867 return;
868 }
869
870 if (strncmp(buf, "YR", 2) == 0) {
871 TALLOC_FREE(state->ntlmssp_state);
872 state->svr_state = SERVER_INITIAL;
873 } else if (strncmp(buf, "KK", 2) == 0) {
874 /* No special preprocessing required */
875 } else if (strncmp(buf, "GF", 2) == 0) {
876 DEBUG(10, ("Requested negotiated NTLMSSP flags\n"));
877
878 if (state->svr_state == SERVER_FINISHED) {
879 *response = talloc_asprintf(mem_ctx, "GF 0x%08x",
880 state->neg_flags);
881 }
882 else {
883 *response = talloc_strdup(mem_ctx, "BH\n");
884 }
885 data_blob_free(&request);
886 return;
887 } else if (strncmp(buf, "GK", 2) == 0) {
888 DEBUG(10, ("Requested NTLMSSP session key\n"));
889 if(state->have_session_key) {
890 char *key64 = base64_encode_data_blob(state->mem_ctx,
891 state->session_key);
892 *response = talloc_asprintf(mem_ctx, "GK %s",
893 key64 ? key64 : "<NULL>");
894 TALLOC_FREE(key64);
895 } else {
896 *response = talloc_strdup(mem_ctx, "BH");
897 }
898
899 data_blob_free(&request);
900 return;
901 } else {
902 DEBUG(1, ("NTLMSSP query [%s] invalid\n", buf));
903 *response = talloc_strdup(mem_ctx, "BH NTLMSSP query invalid");
904 return;
905 }
906
907 if (!state->ntlmssp_state) {
908 nt_status = ntlm_auth_start_ntlmssp_server(
909 &state->ntlmssp_state);
910 if (!NT_STATUS_IS_OK(nt_status)) {
911 *response = talloc_asprintf(
912 mem_ctx, "BH %s", nt_errstr(nt_status));
913 return;
914 }
915 ntlmssp_want_feature_list(state->ntlmssp_state,
916 state->want_feature_list);
917 }
918
919 DEBUG(10, ("got NTLMSSP packet:\n"));
920 dump_data(10, request.data, request.length);
921
922 nt_status = ntlmssp_update(state->ntlmssp_state, request, &reply);
923
924 if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
925 char *reply_base64 = base64_encode_data_blob(state->mem_ctx,
926 reply);
927 *response = talloc_asprintf(mem_ctx, "TT %s", reply_base64);
928 TALLOC_FREE(reply_base64);
929 data_blob_free(&reply);
930 state->svr_state = SERVER_CHALLENGE;
931 DEBUG(10, ("NTLMSSP challenge\n"));
932 } else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED)) {
933 *response = talloc_asprintf(mem_ctx, "BH %s",
934 nt_errstr(nt_status));
935 DEBUG(0, ("NTLMSSP BH: %s\n", nt_errstr(nt_status)));
936
937 TALLOC_FREE(state->ntlmssp_state);
938 } else if (!NT_STATUS_IS_OK(nt_status)) {
939 *response = talloc_asprintf(mem_ctx, "NA %s",
940 nt_errstr(nt_status));
941 DEBUG(10, ("NTLMSSP %s\n", nt_errstr(nt_status)));
942 } else {
943 *response = talloc_asprintf(
944 mem_ctx, "AF %s",
945 (char *)state->ntlmssp_state->callback_private);
946 DEBUG(10, ("NTLMSSP OK!\n"));
947
948 if(state->have_session_key)
949 data_blob_free(&state->session_key);
950 state->session_key = data_blob(
951 state->ntlmssp_state->session_key.data,
952 state->ntlmssp_state->session_key.length);
953 state->neg_flags = state->ntlmssp_state->neg_flags;
954 state->have_session_key = true;
955 state->svr_state = SERVER_FINISHED;
956 }
957
958 data_blob_free(&request);
959 }
960
961 static void manage_squid_ntlmssp_request(struct ntlm_auth_state *state,
962 char *buf, int length)
963 {
964 char *response;
965
966 manage_squid_ntlmssp_request_int(state, buf, length,
967 talloc_tos(), &response);
968
969 if (response == NULL) {
970 x_fprintf(x_stdout, "BH Out of memory\n");
971 return;
972 }
973 x_fprintf(x_stdout, "%s\n", response);
974 TALLOC_FREE(response);
975 }
976
977 static void manage_client_ntlmssp_request(struct ntlm_auth_state *state,
978 char *buf, int length)
979 {
980 DATA_BLOB request, reply;
981 NTSTATUS nt_status;
982
983 if (!opt_username || !*opt_username) {
984 x_fprintf(x_stderr, "username must be specified!\n\n");
985 exit(1);
986 }
987
988 if (strlen(buf) < 2) {
989 DEBUG(1, ("NTLMSSP query [%s] invalid\n", buf));
990 x_fprintf(x_stdout, "BH NTLMSSP query invalid\n");
991 return;
992 }
993
994 if (strlen(buf) > 3) {
995 if(strncmp(buf, "SF ", 3) == 0) {
996 DEBUG(10, ("Looking for flags to negotiate\n"));
997 talloc_free(state->want_feature_list);
998 state->want_feature_list = talloc_strdup(state->mem_ctx,
999 buf+3);
1000 x_fprintf(x_stdout, "OK\n");
1001 return;
1002 }
1003 request = base64_decode_data_blob(buf + 3);
1004 } else {
1005 request = data_blob_null;
1006 }
1007
1008 if (strncmp(buf, "PW ", 3) == 0) {
1009 /* We asked for a password and obviously got it :-) */
1010
1011 opt_password = SMB_STRNDUP((const char *)request.data,
1012 request.length);
1013
1014 if (opt_password == NULL) {
1015 DEBUG(1, ("Out of memory\n"));
1016 x_fprintf(x_stdout, "BH Out of memory\n");
1017 data_blob_free(&request);
1018 return;
1019 }
1020
1021 x_fprintf(x_stdout, "OK\n");
1022 data_blob_free(&request);
1023 return;
1024 }
1025
1026 if (!state->ntlmssp_state && use_cached_creds) {
1027 /* check whether cached credentials are usable. */
1028 DATA_BLOB empty_blob = data_blob_null;
1029
1030 nt_status = do_ccache_ntlm_auth(empty_blob, empty_blob, NULL);
1031 if (!NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1032 /* failed to use cached creds */
1033 use_cached_creds = False;
1034 }
1035 }
1036
1037 if (opt_password == NULL && !use_cached_creds) {
1038 /* Request a password from the calling process. After
1039 sending it, the calling process should retry asking for the
1040 negotiate. */
1041
1042 DEBUG(10, ("Requesting password\n"));
1043 x_fprintf(x_stdout, "PW\n");
1044 return;
1045 }
1046
1047 if (strncmp(buf, "YR", 2) == 0) {
1048 TALLOC_FREE(state->ntlmssp_state);
1049 state->cli_state = CLIENT_INITIAL;
1050 } else if (strncmp(buf, "TT", 2) == 0) {
1051 /* No special preprocessing required */
1052 } else if (strncmp(buf, "GF", 2) == 0) {
1053 DEBUG(10, ("Requested negotiated NTLMSSP flags\n"));
1054
1055 if(state->cli_state == CLIENT_FINISHED) {
1056 x_fprintf(x_stdout, "GF 0x%08x\n", state->neg_flags);
1057 }
1058 else {
1059 x_fprintf(x_stdout, "BH\n");
1060 }
1061
1062 data_blob_free(&request);
1063 return;
1064 } else if (strncmp(buf, "GK", 2) == 0 ) {
1065 DEBUG(10, ("Requested session key\n"));
1066
1067 if(state->cli_state == CLIENT_FINISHED) {
1068 char *key64 = base64_encode_data_blob(state->mem_ctx,
1069 state->session_key);
1070 x_fprintf(x_stdout, "GK %s\n", key64?key64:"<NULL>");
1071 TALLOC_FREE(key64);
1072 }
1073 else {
1074 x_fprintf(x_stdout, "BH\n");
1075 }
1076
1077 data_blob_free(&request);
1078 return;
1079 } else {
1080 DEBUG(1, ("NTLMSSP query [%s] invalid\n", buf));
1081 x_fprintf(x_stdout, "BH NTLMSSP query invalid\n");
1082 return;
1083 }
1084
1085 if (!state->ntlmssp_state) {
1086 nt_status = ntlm_auth_start_ntlmssp_client(
1087 &state->ntlmssp_state);
1088 if (!NT_STATUS_IS_OK(nt_status)) {
1089 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
1090 return;
1091 }
1092 ntlmssp_want_feature_list(state->ntlmssp_state,
1093 state->want_feature_list);
1094 state->initial_message = data_blob_null;
1095 }
1096
1097 DEBUG(10, ("got NTLMSSP packet:\n"));
1098 dump_data(10, request.data, request.length);
1099
1100 if (use_cached_creds && !opt_password &&
1101 (state->cli_state == CLIENT_RESPONSE)) {
1102 nt_status = do_ccache_ntlm_auth(state->initial_message, request,
1103 &reply);
1104 } else {
1105 nt_status = ntlmssp_update(state->ntlmssp_state, request,
1106 &reply);
1107 }
1108
1109 if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1110 char *reply_base64 = base64_encode_data_blob(state->mem_ctx,
1111 reply);
1112 if (state->cli_state == CLIENT_INITIAL) {
1113 x_fprintf(x_stdout, "YR %s\n", reply_base64);
1114 state->initial_message = reply;
1115 state->cli_state = CLIENT_RESPONSE;
1116 } else {
1117 x_fprintf(x_stdout, "KK %s\n", reply_base64);
1118 data_blob_free(&reply);
1119 }
1120 TALLOC_FREE(reply_base64);
1121 DEBUG(10, ("NTLMSSP challenge\n"));
1122 } else if (NT_STATUS_IS_OK(nt_status)) {
1123 char *reply_base64 = base64_encode_data_blob(talloc_tos(),
1124 reply);
1125 x_fprintf(x_stdout, "AF %s\n", reply_base64);
1126 TALLOC_FREE(reply_base64);
1127
1128 if(state->have_session_key)
1129 data_blob_free(&state->session_key);
1130
1131 state->session_key = data_blob(
1132 state->ntlmssp_state->session_key.data,
1133 state->ntlmssp_state->session_key.length);
1134 state->neg_flags = state->ntlmssp_state->neg_flags;
1135 state->have_session_key = true;
1136
1137 DEBUG(10, ("NTLMSSP OK!\n"));
1138 state->cli_state = CLIENT_FINISHED;
1139 TALLOC_FREE(state->ntlmssp_state);
1140 } else {
1141 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
1142 DEBUG(0, ("NTLMSSP BH: %s\n", nt_errstr(nt_status)));
1143 state->cli_state = CLIENT_ERROR;
1144 TALLOC_FREE(state->ntlmssp_state);
1145 }
1146
1147 data_blob_free(&request);
1148 }
1149
1150 static void manage_squid_basic_request(struct ntlm_auth_state *state,
1151 char *buf, int length)
1152 {
1153 char *user, *pass;
1154 user=buf;
1155
1156 pass=(char *)memchr(buf,' ',length);
1157 if (!pass) {
1158 DEBUG(2, ("Password not found. Denying access\n"));
1159 x_fprintf(x_stdout, "ERR\n");
1160 return;
1161 }
1162 *pass='\0';
1163 pass++;
1164
1165 if (state->helper_mode == SQUID_2_5_BASIC) {
1166 rfc1738_unescape(user);
1167 rfc1738_unescape(pass);
1168 }
1169
1170 if (check_plaintext_auth(user, pass, False)) {
1171 x_fprintf(x_stdout, "OK\n");
1172 } else {
1173 x_fprintf(x_stdout, "ERR\n");
1174 }
1175 }
1176
1177 static void offer_gss_spnego_mechs(void) {
1178
1179 DATA_BLOB token;
1180 struct spnego_data spnego;
1181 ssize_t len;
1182 char *reply_base64;
1183 TALLOC_CTX *ctx = talloc_tos();
1184 char *principal;
1185 char *myname_lower;
1186
1187 ZERO_STRUCT(spnego);
1188
1189 myname_lower = talloc_strdup(ctx, lp_netbios_name());
1190 if (!myname_lower) {
1191 return;
1192 }
1193 strlower_m(myname_lower);
1194
1195 principal = talloc_asprintf(ctx, "%s$@%s", myname_lower, lp_realm());
1196 if (!principal) {
1197 return;
1198 }
1199
1200 /* Server negTokenInit (mech offerings) */
1201 spnego.type = SPNEGO_NEG_TOKEN_INIT;
1202 spnego.negTokenInit.mechTypes = talloc_array(ctx, const char *, 4);
1203 #ifdef HAVE_KRB5
1204 spnego.negTokenInit.mechTypes[0] = talloc_strdup(ctx, OID_KERBEROS5_OLD);
1205 spnego.negTokenInit.mechTypes[1] = talloc_strdup(ctx, OID_KERBEROS5);
1206 spnego.negTokenInit.mechTypes[2] = talloc_strdup(ctx, OID_NTLMSSP);
1207 spnego.negTokenInit.mechTypes[3] = NULL;
1208 #else
1209 spnego.negTokenInit.mechTypes[0] = talloc_strdup(ctx, OID_NTLMSSP);
1210 spnego.negTokenInit.mechTypes[1] = NULL;
1211 #endif
1212
1213
1214 spnego.negTokenInit.mechListMIC = data_blob_talloc(ctx, principal,
1215 strlen(principal));
1216
1217 len = spnego_write_data(ctx, &token, &spnego);
1218 spnego_free_data(&spnego);
1219
1220 if (len == -1) {
1221 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1222 x_fprintf(x_stdout, "BH Could not write SPNEGO data blob\n");
1223 return;
1224 }
1225
1226 reply_base64 = base64_encode_data_blob(talloc_tos(), token);
1227 x_fprintf(x_stdout, "TT %s *\n", reply_base64);
1228
1229 TALLOC_FREE(reply_base64);
1230 data_blob_free(&token);
1231 DEBUG(10, ("sent SPNEGO negTokenInit\n"));
1232 return;
1233 }
1234
1235 bool spnego_parse_krb5_wrap(TALLOC_CTX *ctx, DATA_BLOB blob, DATA_BLOB *ticket, uint8 tok_id[2])
1236 {
1237 bool ret;
1238 ASN1_DATA *data;
1239 int data_remaining;
1240
1241 data = asn1_init(talloc_tos());
1242 if (data == NULL) {
1243 return false;
1244 }
1245
1246 asn1_load(data, blob);
1247 asn1_start_tag(data, ASN1_APPLICATION(0));
1248 asn1_check_OID(data, OID_KERBEROS5);
1249
1250 data_remaining = asn1_tag_remaining(data);
1251
1252 if (data_remaining < 3) {
1253 data->has_error = True;
1254 } else {
1255 asn1_read(data, tok_id, 2);
1256 data_remaining -= 2;
1257 *ticket = data_blob_talloc(ctx, NULL, data_remaining);
1258 asn1_read(data, ticket->data, ticket->length);
1259 }
1260
1261 asn1_end_tag(data);
1262
1263 ret = !data->has_error;
1264
1265 if (data->has_error) {
1266 data_blob_free(ticket);
1267 }
1268
1269 asn1_free(data);
1270
1271 return ret;
1272 }
1273
1274 static void manage_gss_spnego_request(struct ntlm_auth_state *state,
1275 char *buf, int length)
1276 {
1277 struct spnego_data request, response;
1278 DATA_BLOB token;
1279 DATA_BLOB raw_in_token = data_blob_null;
1280 DATA_BLOB raw_out_token = data_blob_null;
1281 NTSTATUS status;
1282 ssize_t len;
1283 TALLOC_CTX *ctx = talloc_tos();
1284
1285 char *user = NULL;
1286 char *domain = NULL;
1287
1288 const char *reply_code;
1289 char *reply_base64;
1290 char *reply_argument = NULL;
1291 char *supportedMech = NULL;
1292
1293 if (strlen(buf) < 2) {
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 (strncmp(buf, "YR", 2) == 0) {
1300 TALLOC_FREE(state->ntlmssp_state);
1301 TALLOC_FREE(state->spnego_mech);
1302 TALLOC_FREE(state->spnego_mech_oid);
1303 } else if (strncmp(buf, "KK", 2) == 0) {
1304 ;
1305 } else {
1306 DEBUG(1, ("SPENGO query [%s] invalid\n", buf));
1307 x_fprintf(x_stdout, "BH SPENGO query invalid\n");
1308 return;
1309 }
1310
1311 if ( (strlen(buf) == 2)) {
1312
1313 /* no client data, get the negTokenInit offering
1314 mechanisms */
1315
1316 offer_gss_spnego_mechs();
1317 return;
1318 }
1319
1320 /* All subsequent requests have a blob. This might be negTokenInit or negTokenTarg */
1321
1322 if (strlen(buf) <= 3) {
1323 DEBUG(1, ("GSS-SPNEGO query [%s] invalid\n", buf));
1324 x_fprintf(x_stdout, "BH GSS-SPNEGO query invalid\n");
1325 return;
1326 }
1327
1328 token = base64_decode_data_blob(buf + 3);
1329
1330 if ((token.length >= 7)
1331 && (strncmp((char *)token.data, "NTLMSSP", 7) == 0)) {
1332 char *reply;
1333
1334 data_blob_free(&token);
1335
1336 DEBUG(10, ("Could not parse GSS-SPNEGO, trying raw "
1337 "ntlmssp\n"));
1338
1339 manage_squid_ntlmssp_request_int(state, buf, length,
1340 talloc_tos(), &reply);
1341 if (reply == NULL) {
1342 x_fprintf(x_stdout, "BH Out of memory\n");
1343 return;
1344 }
1345
1346 if (strncmp(reply, "AF ", 3) == 0) {
1347 x_fprintf(x_stdout, "AF * %s\n", reply+3);
1348 } else {
1349 x_fprintf(x_stdout, "%s *\n", reply);
1350 }
1351
1352 TALLOC_FREE(reply);
1353 return;
1354 }
1355
1356 ZERO_STRUCT(request);
1357 len = spnego_read_data(ctx, token, &request);
1358 data_blob_free(&token);
1359
1360 if (len == -1) {
1361 DEBUG(1, ("GSS-SPNEGO query [%s] invalid\n", buf));
1362 x_fprintf(x_stdout, "BH GSS-SPNEGO query invalid\n");
1363 return;
1364 }
1365
1366 if (request.type == SPNEGO_NEG_TOKEN_INIT) {
1367 #ifdef HAVE_KRB5
1368 int krb5_idx = -1;
1369 #endif
1370 int ntlm_idx = -1;
1371 int used_idx = -1;
1372 int i;
1373
1374 if (state->spnego_mech) {
1375 DEBUG(1, ("Client restarted SPNEGO with NegTokenInit "
1376 "while mech[%s] was already negotiated\n",
1377 state->spnego_mech));
1378 x_fprintf(x_stdout, "BH Client send NegTokenInit twice\n");
1379 return;
1380 }
1381
1382 /* Second request from Client. This is where the
1383 client offers its mechanism to use. */
1384
1385 if ( (request.negTokenInit.mechTypes == NULL) ||
1386 (request.negTokenInit.mechTypes[0] == NULL) ) {
1387 DEBUG(1, ("Client did not offer any mechanism\n"));
1388 x_fprintf(x_stdout, "BH Client did not offer any "
1389 "mechanism\n");
1390 return;
1391 }
1392
1393 status = NT_STATUS_UNSUCCESSFUL;
1394 for (i = 0; request.negTokenInit.mechTypes[i] != NULL; i++) {
1395 DEBUG(10,("got mech[%d][%s]\n",
1396 i, request.negTokenInit.mechTypes[i]));
1397 #ifdef HAVE_KRB5
1398 if (strcmp(request.negTokenInit.mechTypes[i], OID_KERBEROS5_OLD) == 0) {
1399 krb5_idx = i;
1400 break;
1401 }
1402 if (strcmp(request.negTokenInit.mechTypes[i], OID_KERBEROS5) == 0) {
1403 krb5_idx = i;
1404 break;
1405 }
1406 #endif
1407 if (strcmp(request.negTokenInit.mechTypes[i], OID_NTLMSSP) == 0) {
1408 ntlm_idx = i;
1409 break;
1410 }
1411 }
1412
1413 used_idx = ntlm_idx;
1414 #ifdef HAVE_KRB5
1415 if (krb5_idx != -1) {
1416 ntlm_idx = -1;
1417 used_idx = krb5_idx;
1418 }
1419 #endif
1420 if (ntlm_idx > -1) {
1421 state->spnego_mech = talloc_strdup(state, "ntlmssp");
1422 if (state->spnego_mech == NULL) {
1423 x_fprintf(x_stdout, "BH Out of memory\n");
1424 return;
1425 }
1426
1427 if (state->ntlmssp_state) {
1428 DEBUG(1, ("Client wants a new NTLMSSP challenge, but "
1429 "already got one\n"));
1430 x_fprintf(x_stdout, "BH Client wants a new "
1431 "NTLMSSP challenge, but "
1432 "already got one\n");
1433 TALLOC_FREE(state->ntlmssp_state);
1434 return;
1435 }
1436
1437 status = ntlm_auth_start_ntlmssp_server(&state->ntlmssp_state);
1438 if (!NT_STATUS_IS_OK(status)) {
1439 x_fprintf(x_stdout, "BH %s\n", nt_errstr(status));
1440 return;
1441 }
1442 }
1443
1444 #ifdef HAVE_KRB5
1445 if (krb5_idx > -1) {
1446 state->spnego_mech = talloc_strdup(state, "krb5");
1447 if (state->spnego_mech == NULL) {
1448 x_fprintf(x_stdout, "BH Out of memory\n");
1449 return;
1450 }
1451 }
1452 #endif
1453 if (used_idx > -1) {
1454 state->spnego_mech_oid = talloc_strdup(state,
1455 request.negTokenInit.mechTypes[used_idx]);
1456 if (state->spnego_mech_oid == NULL) {
1457 x_fprintf(x_stdout, "BH Out of memory\n");
1458 return;
1459 }
1460 supportedMech = talloc_strdup(ctx, state->spnego_mech_oid);
1461 if (supportedMech == NULL) {
1462 x_fprintf(x_stdout, "BH Out of memory\n");
1463 return;
1464 }
1465
1466 status = NT_STATUS_MORE_PROCESSING_REQUIRED;
1467 } else {
1468 status = NT_STATUS_NOT_SUPPORTED;
1469 }
1470 if (used_idx == 0) {
1471 status = NT_STATUS_OK;
1472 raw_in_token = request.negTokenInit.mechToken;
1473 }
1474 } else {
1475 if (state->spnego_mech == NULL) {
1476 DEBUG(1,("Got netTokenTarg without negTokenInit\n"));
1477 x_fprintf(x_stdout, "BH Got a negTokenTarg without "
1478 "negTokenInit\n");
1479 return;
1480 }
1481
1482 if ((request.negTokenTarg.supportedMech != NULL) &&
1483 (strcmp(request.negTokenTarg.supportedMech, state->spnego_mech_oid) != 0 ) ) {
1484 DEBUG(1, ("Got a negTokenTarg with mech[%s] while [%s] was already negotiated\n",
1485 request.negTokenTarg.supportedMech,
1486 state->spnego_mech_oid));
1487 x_fprintf(x_stdout, "BH Got a negTokenTarg with speficied mech\n");
1488 return;
1489 }
1490
1491 status = NT_STATUS_OK;
1492 raw_in_token = request.negTokenTarg.responseToken;
1493 }
1494
1495 if (!NT_STATUS_IS_OK(status)) {
1496 /* error or more processing */
1497 } else if (strcmp(state->spnego_mech, "ntlmssp") == 0) {
1498
1499 DEBUG(10, ("got NTLMSSP packet:\n"));
1500 dump_data(10, raw_in_token.data, raw_in_token.length);
1501
1502 status = ntlmssp_update(state->ntlmssp_state,
1503 raw_in_token,
1504 &raw_out_token);
1505 if (NT_STATUS_IS_OK(status)) {
1506 user = talloc_strdup(ctx, state->ntlmssp_state->user);
1507 domain = talloc_strdup(ctx, state->ntlmssp_state->domain);
1508 }
1509 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1510 TALLOC_FREE(state->ntlmssp_state);
1511 }
1512 #ifdef HAVE_KRB5
1513 } else if (strcmp(state->spnego_mech, "krb5") == 0) {
1514 char *principal;
1515 DATA_BLOB ap_rep;
1516 DATA_BLOB session_key;
1517 struct PAC_LOGON_INFO *logon_info = NULL;
1518 DATA_BLOB ticket;
1519 uint8_t tok_id[2];
1520
1521 if (!spnego_parse_krb5_wrap(ctx, raw_in_token,
1522 &ticket, tok_id)) {
1523 DEBUG(1, ("spnego_parse_krb5_wrap failed\n"));
1524 x_fprintf(x_stdout, "BH spnego_parse_krb5_wrap failed\n");
1525 return;
1526 }
1527
1528 status = ads_verify_ticket(ctx, lp_realm(), 0,
1529 &ticket,
1530 &principal, &logon_info, &ap_rep,
1531 &session_key, True);
1532
1533 /* Now in "principal" we have the name we are authenticated as. */
1534
1535 if (NT_STATUS_IS_OK(status)) {
1536
1537 domain = strchr_m(principal, '@');
1538
1539 if (domain == NULL) {
1540 DEBUG(1, ("Did not get a valid principal "
1541 "from ads_verify_ticket\n"));
1542 x_fprintf(x_stdout, "BH Did not get a "
1543 "valid principal from "
1544 "ads_verify_ticket\n");
1545 return;
1546 }
1547
1548 *domain++ = '\0';
1549 domain = talloc_strdup(ctx, domain);
1550 user = talloc_strdup(ctx, principal);
1551
1552 if (logon_info) {
1553 netsamlogon_cache_store(
1554 user, &logon_info->info3);
1555 }
1556
1557 data_blob_free(&ap_rep);
1558 data_blob_free(&session_key);
1559 }
1560 data_blob_free(&ticket);
1561 #endif
1562 }
1563
1564 spnego_free_data(&request);
1565 ZERO_STRUCT(response);
1566 response.type = SPNEGO_NEG_TOKEN_TARG;
1567
1568 if (NT_STATUS_IS_OK(status)) {
1569 TALLOC_FREE(state->spnego_mech);
1570 TALLOC_FREE(state->spnego_mech_oid);
1571 response.negTokenTarg.negResult = SPNEGO_ACCEPT_COMPLETED;
1572 response.negTokenTarg.responseToken = raw_out_token;
1573 reply_code = "AF";
1574 reply_argument = talloc_asprintf(ctx, "%s\\%s", domain, user);
1575 } else if (NT_STATUS_EQUAL(status,
1576 NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1577 response.negTokenTarg.supportedMech = supportedMech;
1578 response.negTokenTarg.responseToken = raw_out_token;
1579 response.negTokenTarg.negResult = SPNEGO_ACCEPT_INCOMPLETE;
1580 reply_code = "TT";
1581 reply_argument = talloc_strdup(ctx, "*");
1582 } else {
1583 TALLOC_FREE(state->spnego_mech);
1584 TALLOC_FREE(state->spnego_mech_oid);
1585 data_blob_free(&raw_out_token);
1586 response.negTokenTarg.negResult = SPNEGO_REJECT;
1587 reply_code = "NA";
1588 reply_argument = talloc_strdup(ctx, nt_errstr(status));
1589 }
1590
1591 if (!reply_argument) {
1592 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1593 x_fprintf(x_stdout, "BH Could not write SPNEGO data blob\n");
1594 spnego_free_data(&response);
1595 return;
1596 }
1597
1598 len = spnego_write_data(ctx, &token, &response);
1599 spnego_free_data(&response);
1600
1601 if (len == -1) {
1602 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1603 x_fprintf(x_stdout, "BH Could not write SPNEGO data blob\n");
1604 return;
1605 }
1606
1607 reply_base64 = base64_encode_data_blob(talloc_tos(), token);
1608
1609 x_fprintf(x_stdout, "%s %s %s\n",
1610 reply_code, reply_base64, reply_argument);
1611
1612 TALLOC_FREE(reply_base64);
1613 data_blob_free(&token);
1614
1615 return;
1616 }
1617
1618 static struct ntlmssp_state *client_ntlmssp_state = NULL;
1619
1620 static bool manage_client_ntlmssp_init(struct spnego_data spnego)
1621 {
1622 NTSTATUS status;
1623 DATA_BLOB null_blob = data_blob_null;
1624 DATA_BLOB to_server;
1625 char *to_server_base64;
1626 const char *my_mechs[] = {OID_NTLMSSP, NULL};
1627 TALLOC_CTX *ctx = talloc_tos();
1628
1629 DEBUG(10, ("Got spnego negTokenInit with NTLMSSP\n"));
1630
1631 if (client_ntlmssp_state != NULL) {
1632 DEBUG(1, ("Request for initial SPNEGO request where "
1633 "we already have a state\n"));
1634 return False;
1635 }
1636
1637 if (!client_ntlmssp_state) {
1638 if (!NT_STATUS_IS_OK(status = ntlm_auth_start_ntlmssp_client(&client_ntlmssp_state))) {
1639 x_fprintf(x_stdout, "BH %s\n", nt_errstr(status));
1640 return False;
1641 }
1642 }
1643
1644
1645 if (opt_password == NULL) {
1646
1647 /* Request a password from the calling process. After
1648 sending it, the calling process should retry with
1649 the negTokenInit. */
1650
1651 DEBUG(10, ("Requesting password\n"));
1652 x_fprintf(x_stdout, "PW\n");
1653 return True;
1654 }
1655
1656 spnego.type = SPNEGO_NEG_TOKEN_INIT;
1657 spnego.negTokenInit.mechTypes = my_mechs;
1658 spnego.negTokenInit.reqFlags = data_blob_null;
1659 spnego.negTokenInit.reqFlagsPadding = 0;
1660 spnego.negTokenInit.mechListMIC = null_blob;
1661
1662 status = ntlmssp_update(client_ntlmssp_state, null_blob,
1663 &spnego.negTokenInit.mechToken);
1664
1665 if ( !(NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED) ||
1666 NT_STATUS_IS_OK(status)) ) {
1667 DEBUG(1, ("Expected OK or MORE_PROCESSING_REQUIRED, got: %s\n",
1668 nt_errstr(status)));
1669 TALLOC_FREE(client_ntlmssp_state);
1670 return False;
1671 }
1672
1673 spnego_write_data(ctx, &to_server, &spnego);
1674 data_blob_free(&spnego.negTokenInit.mechToken);
1675
1676 to_server_base64 = base64_encode_data_blob(talloc_tos(), to_server);
1677 data_blob_free(&to_server);
1678 x_fprintf(x_stdout, "KK %s\n", to_server_base64);
1679 TALLOC_FREE(to_server_base64);
1680 return True;
1681 }
1682
1683 static void manage_client_ntlmssp_targ(struct spnego_data spnego)
1684 {
1685 NTSTATUS status;
1686 DATA_BLOB null_blob = data_blob_null;
1687 DATA_BLOB request;
1688 DATA_BLOB to_server;
1689 char *to_server_base64;
1690 TALLOC_CTX *ctx = talloc_tos();
1691
1692 DEBUG(10, ("Got spnego negTokenTarg with NTLMSSP\n"));
1693
1694 if (client_ntlmssp_state == NULL) {
1695 DEBUG(1, ("Got NTLMSSP tArg without a client state\n"));
1696 x_fprintf(x_stdout, "BH Got NTLMSSP tArg without a client state\n");
1697 return;
1698 }
1699
1700 if (spnego.negTokenTarg.negResult == SPNEGO_REJECT) {
1701 x_fprintf(x_stdout, "NA\n");
1702 TALLOC_FREE(client_ntlmssp_state);
1703 return;
1704 }
1705
1706 if (spnego.negTokenTarg.negResult == SPNEGO_ACCEPT_COMPLETED) {
1707 x_fprintf(x_stdout, "AF\n");
1708 TALLOC_FREE(client_ntlmssp_state);
1709 return;
1710 }
1711
1712 status = ntlmssp_update(client_ntlmssp_state,
1713 spnego.negTokenTarg.responseToken,
1714 &request);
1715
1716 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1717 DEBUG(1, ("Expected MORE_PROCESSING_REQUIRED from "
1718 "ntlmssp_client_update, got: %s\n",
1719 nt_errstr(status)));
1720 x_fprintf(x_stdout, "BH Expected MORE_PROCESSING_REQUIRED from "
1721 "ntlmssp_client_update\n");
1722 data_blob_free(&request);
1723 TALLOC_FREE(client_ntlmssp_state);
1724 return;
1725 }
1726
1727 spnego.type = SPNEGO_NEG_TOKEN_TARG;
1728 spnego.negTokenTarg.negResult = SPNEGO_ACCEPT_INCOMPLETE;
1729 spnego.negTokenTarg.supportedMech = (const char *)OID_NTLMSSP;
1730 spnego.negTokenTarg.responseToken = request;
1731 spnego.negTokenTarg.mechListMIC = null_blob;
1732
1733 spnego_write_data(ctx, &to_server, &spnego);
1734 data_blob_free(&request);
1735
1736 to_server_base64 = base64_encode_data_blob(talloc_tos(), to_server);
1737 data_blob_free(&to_server);
1738 x_fprintf(x_stdout, "KK %s\n", to_server_base64);
1739 TALLOC_FREE(to_server_base64);
1740 return;
1741 }
1742
1743 #ifdef HAVE_KRB5
1744
1745 static bool manage_client_krb5_init(struct spnego_data spnego)
1746 {
1747 char *principal;
1748 DATA_BLOB tkt, to_server;
1749 DATA_BLOB session_key_krb5 = data_blob_null;
1750 struct spnego_data reply;
1751 char *reply_base64;
1752 int retval;
1753
1754 const char *my_mechs[] = {OID_KERBEROS5_OLD, NULL};
1755 ssize_t len;
1756 TALLOC_CTX *ctx = talloc_tos();
1757
1758 if ( (spnego.negTokenInit.mechListMIC.data == NULL) ||
1759 (spnego.negTokenInit.mechListMIC.length == 0) ) {
1760 DEBUG(1, ("Did not get a principal for krb5\n"));
1761 return False;
1762 }
1763
1764 principal = (char *)SMB_MALLOC(
1765 spnego.negTokenInit.mechListMIC.length+1);
1766
1767 if (principal == NULL) {
1768 DEBUG(1, ("Could not malloc principal\n"));
1769 return False;
1770 }
1771
1772 memcpy(principal, spnego.negTokenInit.mechListMIC.data,
1773 spnego.negTokenInit.mechListMIC.length);
1774 principal[spnego.negTokenInit.mechListMIC.length] = '\0';
1775
1776 retval = cli_krb5_get_ticket(ctx, principal, 0,
1777 &tkt, &session_key_krb5,
1778 0, NULL, NULL, NULL);
1779 if (retval) {
1780 char *user = NULL;
1781
1782 /* Let's try to first get the TGT, for that we need a
1783 password. */
1784
1785 if (opt_password == NULL) {
1786 DEBUG(10, ("Requesting password\n"));
1787 x_fprintf(x_stdout, "PW\n");
1788 return True;
1789 }
1790
1791 user = talloc_asprintf(talloc_tos(), "%s@%s", opt_username, opt_domain);
1792 if (!user) {
1793 return false;
1794 }
1795
1796 if ((retval = kerberos_kinit_password(user, opt_password, 0, NULL))) {
1797 DEBUG(10, ("Requesting TGT failed: %s\n", error_message(retval)));
1798 return False;
1799 }
1800
1801 retval = cli_krb5_get_ticket(ctx, principal, 0,
1802 &tkt, &session_key_krb5,
1803 0, NULL, NULL, NULL);
1804 if (retval) {
1805 DEBUG(10, ("Kinit suceeded, but getting a ticket failed: %s\n", error_message(retval)));
1806 return False;
1807 }
1808 }
1809
1810 data_blob_free(&session_key_krb5);
1811
1812 ZERO_STRUCT(reply);
1813
1814 reply.type = SPNEGO_NEG_TOKEN_INIT;
1815 reply.negTokenInit.mechTypes = my_mechs;
1816 reply.negTokenInit.reqFlags = data_blob_null;
1817 reply.negTokenInit.reqFlagsPadding = 0;
1818 reply.negTokenInit.mechToken = tkt;
1819 reply.negTokenInit.mechListMIC = data_blob_null;
1820
1821 len = spnego_write_data(ctx, &to_server, &reply);
1822 data_blob_free(&tkt);
1823
1824 if (len == -1) {
1825 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1826 return False;
1827 }
1828
1829 reply_base64 = base64_encode_data_blob(talloc_tos(), to_server);
1830 x_fprintf(x_stdout, "KK %s *\n", reply_base64);
1831
1832 TALLOC_FREE(reply_base64);
1833 data_blob_free(&to_server);
1834 DEBUG(10, ("sent GSS-SPNEGO KERBEROS5 negTokenInit\n"));
1835 return True;
1836 }
1837
1838 static void manage_client_krb5_targ(struct spnego_data spnego)
1839 {
1840 switch (spnego.negTokenTarg.negResult) {
1841 case SPNEGO_ACCEPT_INCOMPLETE:
1842 DEBUG(1, ("Got a Kerberos negTokenTarg with ACCEPT_INCOMPLETE\n"));
1843 x_fprintf(x_stdout, "BH Got a Kerberos negTokenTarg with "
1844 "ACCEPT_INCOMPLETE\n");
1845 break;
1846 case SPNEGO_ACCEPT_COMPLETED:
1847 DEBUG(10, ("Accept completed\n"));
1848 x_fprintf(x_stdout, "AF\n");
1849 break;
1850 case SPNEGO_REJECT:
1851 DEBUG(10, ("Rejected\n"));
1852 x_fprintf(x_stdout, "NA\n");
1853 break;
1854 default:
1855 DEBUG(1, ("Got an invalid negTokenTarg\n"));
1856 x_fprintf(x_stdout, "AF\n");
1857 }
1858 }
1859
1860 #endif
1861
1862 static void manage_gss_spnego_client_request(struct ntlm_auth_state *state,
1863 char *buf, int length)
1864 {
1865 DATA_BLOB request;
1866 struct spnego_data spnego;
1867 ssize_t len;
1868 TALLOC_CTX *ctx = talloc_tos();
1869
1870 if (!opt_username || !*opt_username) {
1871 x_fprintf(x_stderr, "username must be specified!\n\n");
1872 exit(1);
1873 }
1874
1875 if (strlen(buf) <= 3) {
1876 DEBUG(1, ("SPNEGO query [%s] too short\n", buf));
1877 x_fprintf(x_stdout, "BH SPNEGO query too short\n");
1878 return;
1879 }
1880
1881 request = base64_decode_data_blob(buf+3);
1882
1883 if (strncmp(buf, "PW ", 3) == 0) {
1884
1885 /* We asked for a password and obviously got it :-) */
1886
1887 opt_password = SMB_STRNDUP((const char *)request.data, request.length);
1888
1889 if (opt_password == NULL) {
1890 DEBUG(1, ("Out of memory\n"));
1891 x_fprintf(x_stdout, "BH Out of memory\n");
1892 data_blob_free(&request);
1893 return;
1894 }
1895
1896 x_fprintf(x_stdout, "OK\n");
1897 data_blob_free(&request);
1898 return;
1899 }
1900
1901 if ( (strncmp(buf, "TT ", 3) != 0) &&
1902 (strncmp(buf, "AF ", 3) != 0) &&
1903 (strncmp(buf, "NA ", 3) != 0) ) {
1904 DEBUG(1, ("SPNEGO request [%s] invalid\n", buf));
1905 x_fprintf(x_stdout, "BH SPNEGO request invalid\n");
1906 data_blob_free(&request);
1907 return;
1908 }
1909
1910 /* So we got a server challenge to generate a SPNEGO
1911 client-to-server request... */
1912
1913 len = spnego_read_data(ctx, request, &spnego);
1914 data_blob_free(&request);
1915
1916 if (len == -1) {
1917 DEBUG(1, ("Could not read SPNEGO data for [%s]\n", buf));
1918 x_fprintf(x_stdout, "BH Could not read SPNEGO data\n");
1919 return;
1920 }
1921
1922 if (spnego.type == SPNEGO_NEG_TOKEN_INIT) {
1923
1924 /* The server offers a list of mechanisms */
1925
1926 const char **mechType = (const char **)spnego.negTokenInit.mechTypes;
1927
1928 while (*mechType != NULL) {
1929
1930 #ifdef HAVE_KRB5
1931 if ( (strcmp(*mechType, OID_KERBEROS5_OLD) == 0) ||
1932 (strcmp(*mechType, OID_KERBEROS5) == 0) ) {
1933 if (manage_client_krb5_init(spnego))
1934 goto out;
1935 }
1936 #endif
1937
1938 if (strcmp(*mechType, OID_NTLMSSP) == 0) {
1939 if (manage_client_ntlmssp_init(spnego))
1940 goto out;
1941 }
1942
1943 mechType++;
1944 }
1945
1946 DEBUG(1, ("Server offered no compatible mechanism\n"));
1947 x_fprintf(x_stdout, "BH Server offered no compatible mechanism\n");
1948 return;
1949 }
1950
1951 if (spnego.type == SPNEGO_NEG_TOKEN_TARG) {
1952
1953 if (spnego.negTokenTarg.supportedMech == NULL) {
1954 /* On accept/reject Windows does not send the
1955 mechanism anymore. Handle that here and
1956 shut down the mechanisms. */
1957
1958 switch (spnego.negTokenTarg.negResult) {
1959 case SPNEGO_ACCEPT_COMPLETED:
1960 x_fprintf(x_stdout, "AF\n");
1961 break;
1962 case SPNEGO_REJECT:
1963 x_fprintf(x_stdout, "NA\n");
1964 break;
1965 default:
1966 DEBUG(1, ("Got a negTokenTarg with no mech and an "
1967 "unknown negResult: %d\n",
1968 spnego.negTokenTarg.negResult));
1969 x_fprintf(x_stdout, "BH Got a negTokenTarg with"
1970 " no mech and an unknown "
1971 "negResult\n");
1972 }
1973
1974 TALLOC_FREE(client_ntlmssp_state);
1975 goto out;
1976 }
1977
1978 if (strcmp(spnego.negTokenTarg.supportedMech,
1979 OID_NTLMSSP) == 0) {
1980 manage_client_ntlmssp_targ(spnego);
1981 goto out;
1982 }
1983
1984 #if HAVE_KRB5
1985 if (strcmp(spnego.negTokenTarg.supportedMech,
1986 OID_KERBEROS5_OLD) == 0) {
1987 manage_client_krb5_targ(spnego);
1988 goto out;
1989 }
1990 #endif
1991
1992 }
1993
1994 DEBUG(1, ("Got an SPNEGO token I could not handle [%s]!\n", buf));
1995 x_fprintf(x_stdout, "BH Got an SPNEGO token I could not handle\n");
1996 return;
1997
1998 out:
1999 spnego_free_data(&spnego);
2000 return;
2001 }
2002
2003 static void manage_ntlm_server_1_request(struct ntlm_auth_state *state,
2004 char *buf, int length)
2005 {
2006 char *request, *parameter;
2007 static DATA_BLOB challenge;
2008 static DATA_BLOB lm_response;
2009 static DATA_BLOB nt_response;
2010 static char *full_username;
2011 static char *username;
2012 static char *domain;
2013 static char *plaintext_password;
2014 static bool ntlm_server_1_user_session_key;
2015 static bool ntlm_server_1_lm_session_key;
2016
2017 if (strequal(buf, ".")) {
2018 if (!full_username && !username) {
2019 x_fprintf(x_stdout, "Error: No username supplied!\n");
2020 } else if (plaintext_password) {
2021 /* handle this request as plaintext */
2022 if (!full_username) {
2023 if (asprintf(&full_username, "%s%c%s", domain, winbind_separator(), username) == -1) {
2024 x_fprintf(x_stdout, "Error: Out of memory in asprintf!\n.\n");
2025 return;
2026 }
2027 }
2028 if (check_plaintext_auth(full_username, plaintext_password, False)) {
2029 x_fprintf(x_stdout, "Authenticated: Yes\n");
2030 } else {
2031 x_fprintf(x_stdout, "Authenticated: No\n");
2032 }
2033 } else if (!lm_response.data && !nt_response.data) {
2034 x_fprintf(x_stdout, "Error: No password supplied!\n");
2035 } else if (!challenge.data) {
2036 x_fprintf(x_stdout, "Error: No lanman-challenge supplied!\n");
2037 } else {
2038 char *error_string = NULL;
2039 uchar lm_key[8];
2040 uchar user_session_key[16];
2041 uint32 flags = 0;
2042
2043 if (full_username && !username) {
2044 fstring fstr_user;
2045 fstring fstr_domain;
2046
2047 if (!parse_ntlm_auth_domain_user(full_username, fstr_user, fstr_domain)) {
2048 /* username might be 'tainted', don't print into our new-line deleimianted stream */
2049 x_fprintf(x_stdout, "Error: Could not parse into domain and username\n");
2050 }
2051 SAFE_FREE(username);
2052 SAFE_FREE(domain);
2053 username = smb_xstrdup(fstr_user);
2054 domain = smb_xstrdup(fstr_domain);
2055 }
2056
2057 if (!domain) {
2058 domain = smb_xstrdup(get_winbind_domain());
2059 }
2060
2061 if (ntlm_server_1_lm_session_key)
2062 flags |= WBFLAG_PAM_LMKEY;
2063
2064 if (ntlm_server_1_user_session_key)
2065 flags |= WBFLAG_PAM_USER_SESSION_KEY;
2066
2067 if (!NT_STATUS_IS_OK(
2068 contact_winbind_auth_crap(username,
2069 domain,
2070 lp_netbios_name(),
2071 &challenge,
2072 &lm_response,
2073 &nt_response,
2074 flags,
2075 lm_key,
2076 user_session_key,
2077 &error_string,
2078 NULL))) {
2079
2080 x_fprintf(x_stdout, "Authenticated: No\n");
2081 x_fprintf(x_stdout, "Authentication-Error: %s\n.\n", error_string);
2082 } else {
2083 static char zeros[16];
2084 char *hex_lm_key;
2085 char *hex_user_session_key;
2086
2087 x_fprintf(x_stdout, "Authenticated: Yes\n");
2088
2089 if (ntlm_server_1_lm_session_key
2090 && (memcmp(zeros, lm_key,
2091 sizeof(lm_key)) != 0)) {
2092 hex_lm_key = hex_encode_talloc(NULL,
2093 (const unsigned char *)lm_key,
2094 sizeof(lm_key));
2095 x_fprintf(x_stdout, "LANMAN-Session-Key: %s\n", hex_lm_key);
2096 TALLOC_FREE(hex_lm_key);
2097 }
2098
2099 if (ntlm_server_1_user_session_key
2100 && (memcmp(zeros, user_session_key,
2101 sizeof(user_session_key)) != 0)) {
2102 hex_user_session_key = hex_encode_talloc(NULL,
2103 (const unsigned char *)user_session_key,
2104 sizeof(user_session_key));
2105 x_fprintf(x_stdout, "User-Session-Key: %s\n", hex_user_session_key);
2106 TALLOC_FREE(hex_user_session_key);
2107 }
2108 }
2109 SAFE_FREE(error_string);
2110 }
2111 /* clear out the state */
2112 challenge = data_blob_null;
2113 nt_response = data_blob_null;
2114 lm_response = data_blob_null;
2115 SAFE_FREE(full_username);
2116 SAFE_FREE(username);
2117 SAFE_FREE(domain);
2118 SAFE_FREE(plaintext_password);
2119 ntlm_server_1_user_session_key = False;
2120 ntlm_server_1_lm_session_key = False;
2121 x_fprintf(x_stdout, ".\n");
2122
2123 return;
2124 }
2125
2126 request = buf;
2127
2128 /* Indicates a base64 encoded structure */
2129 parameter = strstr_m(request, ":: ");
2130 if (!parameter) {
2131 parameter = strstr_m(request, ": ");
2132
2133 if (!parameter) {
2134 DEBUG(0, ("Parameter not found!\n"));
2135 x_fprintf(x_stdout, "Error: Parameter not found!\n.\n");
2136 return;
2137 }
2138
2139 parameter[0] ='\0';
2140 parameter++;
2141 parameter[0] ='\0';
2142 parameter++;
2143
2144 } else {
2145 parameter[0] ='\0';
2146 parameter++;
2147 parameter[0] ='\0';
2148 parameter++;
2149 parameter[0] ='\0';
2150 parameter++;
2151
2152 base64_decode_inplace(parameter);
2153 }
2154
2155 if (strequal(request, "LANMAN-Challenge")) {
2156 challenge = strhex_to_data_blob(NULL, parameter);
2157 if (challenge.length != 8) {
2158 x_fprintf(x_stdout, "Error: hex decode of %s failed! (got %d bytes, expected 8)\n.\n",
2159 parameter,
2160 (int)challenge.length);
2161 challenge = data_blob_null;
2162 }
2163 } else if (strequal(request, "NT-Response")) {
2164 nt_response = strhex_to_data_blob(NULL, parameter);
2165 if (nt_response.length < 24) {
2166 x_fprintf(x_stdout, "Error: hex decode of %s failed! (only got %d bytes, needed at least 24)\n.\n",
2167 parameter,
2168 (int)nt_response.length);
2169 nt_response = data_blob_null;
2170 }
2171 } else if (strequal(request, "LANMAN-Response")) {
2172 lm_response = strhex_to_data_blob(NULL, parameter);
2173 if (lm_response.length != 24) {
2174 x_fprintf(x_stdout, "Error: hex decode of %s failed! (got %d bytes, expected 24)\n.\n",
2175 parameter,
2176 (int)lm_response.length);
2177 lm_response = data_blob_null;
2178 }
2179 } else if (strequal(request, "Password")) {
2180 plaintext_password = smb_xstrdup(parameter);
2181 } else if (strequal(request, "NT-Domain")) {
2182 domain = smb_xstrdup(parameter);
2183 } else if (strequal(request, "Username")) {
2184 username = smb_xstrdup(parameter);
2185 } else if (strequal(request, "Full-Username")) {
2186 full_username = smb_xstrdup(parameter);
2187 } else if (strequal(request, "Request-User-Session-Key")) {
2188 ntlm_server_1_user_session_key = strequal(parameter, "Yes");
2189 } else if (strequal(request, "Request-LanMan-Session-Key")) {
2190 ntlm_server_1_lm_session_key = strequal(parameter, "Yes");
2191 } else {
2192 x_fprintf(x_stdout, "Error: Unknown request %s\n.\n", request);
2193 }
2194 }
2195
2196 static void manage_ntlm_change_password_1_request(struct ntlm_auth_state *state,
2197 char *buf, int length)
2198 {
2199 char *request, *parameter;
2200 static DATA_BLOB new_nt_pswd;
2201 static DATA_BLOB old_nt_hash_enc;
2202 static DATA_BLOB new_lm_pswd;
2203 static DATA_BLOB old_lm_hash_enc;
2204 static char *full_username = NULL;
2205 static char *username = NULL;
2206 static char *domain = NULL;
2207 static char *newpswd = NULL;
2208 static char *oldpswd = NULL;
2209
2210 if (strequal(buf, ".")) {
2211 if(newpswd && oldpswd) {
2212 uchar old_nt_hash[16];
2213 uchar old_lm_hash[16];
2214 uchar new_nt_hash[16];
2215 uchar new_lm_hash[16];
2216
2217 new_nt_pswd = data_blob(NULL, 516);
2218 old_nt_hash_enc = data_blob(NULL, 16);
2219
2220 /* Calculate the MD4 hash (NT compatible) of the
2221 * password */
2222 E_md4hash(oldpswd, old_nt_hash);
2223 E_md4hash(newpswd, new_nt_hash);
2224
2225 /* E_deshash returns false for 'long'
2226 passwords (> 14 DOS chars).
2227
2228 Therefore, don't send a buffer
2229 encrypted with the truncated hash
2230 (it could allow an even easier
2231 attack on the password)
2232
2233 Likewise, obey the admin's restriction
2234 */
2235
2236 if (lp_client_lanman_auth() &&
2237 E_deshash(newpswd, new_lm_hash) &&
2238 E_deshash(oldpswd, old_lm_hash)) {
2239 new_lm_pswd = data_blob(NULL, 516);
2240 old_lm_hash_enc = data_blob(NULL, 16);
2241 encode_pw_buffer(new_lm_pswd.data, newpswd,
2242 STR_UNICODE);
2243
2244 arcfour_crypt(new_lm_pswd.data, old_nt_hash, 516);
2245 E_old_pw_hash(new_nt_hash, old_lm_hash,
2246 old_lm_hash_enc.data);
2247 } else {
2248 new_lm_pswd.data = NULL;
2249 new_lm_pswd.length = 0;
2250 old_lm_hash_enc.data = NULL;
2251 old_lm_hash_enc.length = 0;
2252 }
2253
2254 encode_pw_buffer(new_nt_pswd.data, newpswd,
2255 STR_UNICODE);
2256
2257 arcfour_crypt(new_nt_pswd.data, old_nt_hash, 516);
2258 E_old_pw_hash(new_nt_hash, old_nt_hash,
2259 old_nt_hash_enc.data);
2260 }
2261
2262 if (!full_username && !username) {
2263 x_fprintf(x_stdout, "Error: No username supplied!\n");
2264 } else if ((!new_nt_pswd.data || !old_nt_hash_enc.data) &&
2265 (!new_lm_pswd.data || old_lm_hash_enc.data) ) {
2266 x_fprintf(x_stdout, "Error: No NT or LM password "
2267 "blobs supplied!\n");
2268 } else {
2269 char *error_string = NULL;
2270
2271 if (full_username && !username) {
2272 fstring fstr_user;
2273 fstring fstr_domain;
2274
2275 if (!parse_ntlm_auth_domain_user(full_username,
2276 fstr_user,
2277 fstr_domain)) {
2278 /* username might be 'tainted', don't
2279 * print into our new-line
2280 * deleimianted stream */
2281 x_fprintf(x_stdout, "Error: Could not "
2282 "parse into domain and "
2283 "username\n");
2284 SAFE_FREE(username);
2285 username = smb_xstrdup(full_username);
2286 } else {
2287 SAFE_FREE(username);
2288 SAFE_FREE(domain);
2289 username = smb_xstrdup(fstr_user);
2290 domain = smb_xstrdup(fstr_domain);
2291 }
2292
2293 }
2294
2295 if(!NT_STATUS_IS_OK(contact_winbind_change_pswd_auth_crap(
2296 username, domain,
2297 new_nt_pswd,
2298 old_nt_hash_enc,
2299 new_lm_pswd,
2300 old_lm_hash_enc,
2301 &error_string))) {
2302 x_fprintf(x_stdout, "Password-Change: No\n");
2303 x_fprintf(x_stdout, "Password-Change-Error: "
2304 "%s\n.\n", error_string);
2305 } else {
2306 x_fprintf(x_stdout, "Password-Change: Yes\n");
2307 }
2308
2309 SAFE_FREE(error_string);
2310 }
2311 /* clear out the state */
2312 new_nt_pswd = data_blob_null;
2313 old_nt_hash_enc = data_blob_null;
2314 new_lm_pswd = data_blob_null;
2315 old_nt_hash_enc = data_blob_null;
2316 SAFE_FREE(full_username);
2317 SAFE_FREE(username);
2318 SAFE_FREE(domain);
2319 SAFE_FREE(newpswd);
2320 SAFE_FREE(oldpswd);
2321 x_fprintf(x_stdout, ".\n");
2322
2323 return;
2324 }
2325
2326 request = buf;
2327
2328 /* Indicates a base64 encoded structure */
2329 parameter = strstr_m(request, ":: ");
2330 if (!parameter) {
2331 parameter = strstr_m(request, ": ");
2332
2333 if (!parameter) {
2334 DEBUG(0, ("Parameter not found!\n"));
2335 x_fprintf(x_stdout, "Error: Parameter not found!\n.\n");
2336 return;
2337 }
2338
2339 parameter[0] ='\0';
2340 parameter++;
2341 parameter[0] ='\0';
2342 parameter++;
2343 } else {
2344 parameter[0] ='\0';
2345 parameter++;
2346 parameter[0] ='\0';
2347 parameter++;
2348 parameter[0] ='\0';
2349 parameter++;
2350
2351 base64_decode_inplace(parameter);
2352 }
2353
2354 if (strequal(request, "new-nt-password-blob")) {
2355 new_nt_pswd = strhex_to_data_blob(NULL, parameter);
2356 if (new_nt_pswd.length != 516) {
2357 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2358 "(got %d bytes, expected 516)\n.\n",
2359 parameter,
2360 (int)new_nt_pswd.length);
2361 new_nt_pswd = data_blob_null;
2362 }
2363 } else if (strequal(request, "old-nt-hash-blob")) {
2364 old_nt_hash_enc = strhex_to_data_blob(NULL, parameter);
2365 if (old_nt_hash_enc.length != 16) {
2366 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2367 "(got %d bytes, expected 16)\n.\n",
2368 parameter,
2369 (int)old_nt_hash_enc.length);
2370 old_nt_hash_enc = data_blob_null;
2371 }
2372 } else if (strequal(request, "new-lm-password-blob")) {
2373 new_lm_pswd = strhex_to_data_blob(NULL, parameter);
2374 if (new_lm_pswd.length != 516) {
2375 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2376 "(got %d bytes, expected 516)\n.\n",
2377 parameter,
2378 (int)new_lm_pswd.length);
2379 new_lm_pswd = data_blob_null;
2380 }
2381 }
2382 else if (strequal(request, "old-lm-hash-blob")) {
2383 old_lm_hash_enc = strhex_to_data_blob(NULL, parameter);
2384 if (old_lm_hash_enc.length != 16)
2385 {
2386 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2387 "(got %d bytes, expected 16)\n.\n",
2388 parameter,
2389 (int)old_lm_hash_enc.length);
2390 old_lm_hash_enc = data_blob_null;
2391 }
2392 } else if (strequal(request, "nt-domain")) {
2393 domain = smb_xstrdup(parameter);
2394 } else if(strequal(request, "username")) {
2395 username = smb_xstrdup(parameter);
2396 } else if(strequal(request, "full-username")) {
2397 username = smb_xstrdup(parameter);
2398 } else if(strequal(request, "new-password")) {
2399 newpswd = smb_xstrdup(parameter);
2400 } else if (strequal(request, "old-password")) {
2401 oldpswd = smb_xstrdup(parameter);
2402 } else {
2403 x_fprintf(x_stdout, "Error: Unknown request %s\n.\n", request);
2404 }
2405 }
2406
2407 static void manage_squid_request(struct ntlm_auth_state *state,
2408 stdio_helper_function fn)
2409 {
2410 char *buf;
2411 char tmp[INITIAL_BUFFER_SIZE+1];
2412 int length, buf_size = 0;
2413 char *c;
2414
2415 buf = talloc_strdup(state->mem_ctx, "");
2416 if (!buf) {
2417 DEBUG(0, ("Failed to allocate input buffer.\n"));
2418 x_fprintf(x_stderr, "ERR\n");
2419 exit(1);
2420 }
2421
2422 do {
2423
2424 /* this is not a typo - x_fgets doesn't work too well under
2425 * squid */
2426 if (fgets(tmp, sizeof(tmp)-1, stdin) == NULL) {
2427 if (ferror(stdin)) {
2428 DEBUG(1, ("fgets() failed! dying..... errno=%d "
2429 "(%s)\n", ferror(stdin),
2430 strerror(ferror(stdin))));
2431
2432 exit(1);
2433 }
2434 exit(0);
2435 }
2436
2437 buf = talloc_strdup_append_buffer(buf, tmp);
2438 buf_size += INITIAL_BUFFER_SIZE;
2439
2440 if (buf_size > MAX_BUFFER_SIZE) {
2441 DEBUG(2, ("Oversized message\n"));
2442 x_fprintf(x_stderr, "ERR\n");
2443 talloc_free(buf);
2444 return;
2445 }
2446
2447 c = strchr(buf, '\n');
2448 } while (c == NULL);
2449
2450 *c = '\0';
2451 length = c-buf;
2452
2453 DEBUG(10, ("Got '%s' from squid (length: %d).\n",buf,length));
2454
2455 if (buf[0] == '\0') {
2456 DEBUG(2, ("Invalid Request\n"));
2457 x_fprintf(x_stderr, "ERR\n");
2458 talloc_free(buf);
2459 return;
2460 }
2461
2462 fn(state, buf, length);
2463 talloc_free(buf);
2464 }
2465
2466
2467 static void squid_stream(enum stdio_helper_mode stdio_mode, stdio_helper_function fn) {
2468 TALLOC_CTX *mem_ctx;
2469 struct ntlm_auth_state *state;
2470
2471 /* initialize FDescs */
2472 x_setbuf(x_stdout, NULL);
2473 x_setbuf(x_stderr, NULL);
2474
2475 mem_ctx = talloc_init("ntlm_auth");
2476 if (!mem_ctx) {
2477 DEBUG(0, ("squid_stream: Failed to create talloc context\n"));
2478 x_fprintf(x_stderr, "ERR\n");
2479 exit(1);
2480 }
2481
2482 state = talloc_zero(mem_ctx, struct ntlm_auth_state);
2483 if (!state) {
2484 DEBUG(0, ("squid_stream: Failed to talloc ntlm_auth_state\n"));
2485 x_fprintf(x_stderr, "ERR\n");
2486 exit(1);
2487 }
2488
2489 state->mem_ctx = mem_ctx;
2490 state->helper_mode = stdio_mode;
2491
2492 while(1) {
2493 TALLOC_CTX *frame = talloc_stackframe();
2494 manage_squid_request(state, fn);
2495 TALLOC_FREE(frame);
2496 }
2497 }
2498
2499
2500 /* Authenticate a user with a challenge/response */
2501
2502 static bool check_auth_crap(void)
2503 {
2504 NTSTATUS nt_status;
2505 uint32 flags = 0;
2506 char lm_key[8];
2507 char user_session_key[16];
2508 char *hex_lm_key;
2509 char *hex_user_session_key;
2510 char *error_string;
2511 static uint8 zeros[16];
2512
2513 x_setbuf(x_stdout, NULL);
2514
2515 if (request_lm_key)
2516 flags |= WBFLAG_PAM_LMKEY;
2517
2518 if (request_user_session_key)
2519 flags |= WBFLAG_PAM_USER_SESSION_KEY;
2520
2521 flags |= WBFLAG_PAM_NT_STATUS_SQUASH;
2522
2523 nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
2524 opt_workstation,
2525 &opt_challenge,
2526 &opt_lm_response,
2527 &opt_nt_response,
2528 flags,
2529 (unsigned char *)lm_key,
2530 (unsigned char *)user_session_key,
2531 &error_string, NULL);
2532
2533 if (!NT_STATUS_IS_OK(nt_status)) {
2534 x_fprintf(x_stdout, "%s (0x%x)\n",
2535 error_string,
2536 NT_STATUS_V(nt_status));
2537 SAFE_FREE(error_string);
2538 return False;
2539 }
2540
2541 if (request_lm_key
2542 && (memcmp(zeros, lm_key,
2543 sizeof(lm_key)) != 0)) {
2544 hex_lm_key = hex_encode_talloc(talloc_tos(), (const unsigned char *)lm_key,
2545 sizeof(lm_key));
2546 x_fprintf(x_stdout, "LM_KEY: %s\n", hex_lm_key);
2547 TALLOC_FREE(hex_lm_key);
2548 }
2549 if (request_user_session_key
2550 && (memcmp(zeros, user_session_key,
2551 sizeof(user_session_key)) != 0)) {
2552 hex_user_session_key = hex_encode_talloc(talloc_tos(), (const unsigned char *)user_session_key,
2553 sizeof(user_session_key));
2554 x_fprintf(x_stdout, "NT_KEY: %s\n", hex_user_session_key);
2555 TALLOC_FREE(hex_user_session_key);
2556 }
2557
2558 return True;
2559 }
2560
2561 /* Main program */
2562
2563 enum {
2564 OPT_USERNAME = 1000,
2565 OPT_DOMAIN,
2566 OPT_WORKSTATION,
2567 OPT_CHALLENGE,
2568 OPT_RESPONSE,
2569 OPT_LM,
2570 OPT_NT,
2571 OPT_PASSWORD,
2572 OPT_LM_KEY,
2573 OPT_USER_SESSION_KEY,
2574 OPT_DIAGNOSTICS,
2575 OPT_REQUIRE_MEMBERSHIP,
2576 OPT_USE_CACHED_CREDS,
2577 OPT_PAM_WINBIND_CONF
2578 };
2579
2580 int main(int argc, const char **argv)
2581 {
2582 TALLOC_CTX *frame = talloc_stackframe();
2583 int opt;
2584 static const char *helper_protocol;
2585 static int diagnostics;
2586
2587 static const char *hex_challenge;
2588 static const char *hex_lm_response;
2589 static const char *hex_nt_response;
2590
2591 poptContext pc;
2592
2593 /* NOTE: DO NOT change this interface without considering the implications!
2594 This is an external interface, which other programs will use to interact
2595 with this helper.
2596 */
2597
2598 /* We do not use single-letter command abbreviations, because they harm future
2599 interface stability. */
2600
2601 struct poptOption long_options[] = {
2602 POPT_AUTOHELP
2603 { "helper-protocol", 0, POPT_ARG_STRING, &helper_protocol, OPT_DOMAIN, "operate as a stdio-based helper", "helper protocol to use"},
2604 { "username", 0, POPT_ARG_STRING, &opt_username, OPT_USERNAME, "username"},
2605 { "domain", 0, POPT_ARG_STRING, &opt_domain, OPT_DOMAIN, "domain name"},
2606 { "workstation", 0, POPT_ARG_STRING, &opt_workstation, OPT_WORKSTATION, "workstation"},
2607 { "challenge", 0, POPT_ARG_STRING, &hex_challenge, OPT_CHALLENGE, "challenge (HEX encoded)"},
2608 { "lm-response", 0, POPT_ARG_STRING, &hex_lm_response, OPT_LM, "LM Response to the challenge (HEX encoded)"},
2609 { "nt-response", 0, POPT_ARG_STRING, &hex_nt_response, OPT_NT, "NT or NTLMv2 Response to the challenge (HEX encoded)"},
2610 { "password", 0, POPT_ARG_STRING, &opt_password, OPT_PASSWORD, "User's plaintext password"},
2611 { "request-lm-key", 0, POPT_ARG_NONE, &request_lm_key, OPT_LM_KEY, "Retrieve LM session key"},
2612 { "request-nt-key", 0, POPT_ARG_NONE, &request_user_session_key, OPT_USER_SESSION_KEY, "Retrieve User (NT) session key"},
2613 { "use-cached-creds", 0, POPT_ARG_NONE, &use_cached_creds, OPT_USE_CACHED_CREDS, "Use cached credentials if no password is given"},
2614 { "diagnostics", 0, POPT_ARG_NONE, &diagnostics,
2615 OPT_DIAGNOSTICS,
2616 "Perform diagnostics on the authentication chain"},
2617 { "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" },
2618 { "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" },
2619 POPT_COMMON_CONFIGFILE
2620 POPT_COMMON_VERSION
2621 POPT_TABLEEND
2622 };
2623
2624 /* Samba client initialisation */
2625 load_case_tables();
2626
2627 setup_logging("ntlm_auth", DEBUG_STDERR);
2628
2629 /* Parse options */
2630
2631 pc = poptGetContext("ntlm_auth", argc, argv, long_options, 0);
2632
2633 /* Parse command line options */
2634
2635 if (argc == 1) {
2636 poptPrintHelp(pc, stderr, 0);
2637 return 1;
2638 }
2639
2640 while((opt = poptGetNextOpt(pc)) != -1) {
2641 /* Get generic config options like --configfile */
2642 }
2643
2644 poptFreeContext(pc);
2645
2646 if (!lp_load_global(get_dyn_CONFIGFILE())) {
2647 d_fprintf(stderr, "ntlm_auth: error opening config file %s. Error was %s\n",
2648 get_dyn_CONFIGFILE(), strerror(errno));
2649 exit(1);
2650 }
2651
2652 pc = poptGetContext(NULL, argc, (const char **)argv, long_options,
2653 POPT_CONTEXT_KEEP_FIRST);
2654
2655 while((opt = poptGetNextOpt(pc)) != -1) {
2656 switch (opt) {
2657 case OPT_CHALLENGE:
2658 opt_challenge = strhex_to_data_blob(NULL, hex_challenge);
2659 if (opt_challenge.length != 8) {
2660 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
2661 hex_challenge,
2662 (int)opt_challenge.length);
2663 exit(1);
2664 }
2665 break;
2666 case OPT_LM:
2667 opt_lm_response = strhex_to_data_blob(NULL, hex_lm_response);
2668 if (opt_lm_response.length != 24) {
2669 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
2670 hex_lm_response,
2671 (int)opt_lm_response.length);
2672 exit(1);
2673 }
2674 break;
2675
2676 case OPT_NT:
2677 opt_nt_response = strhex_to_data_blob(NULL, hex_nt_response);
2678 if (opt_nt_response.length < 24) {
2679 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
2680 hex_nt_response,
2681 (int)opt_nt_response.length);
2682 exit(1);
2683 }
2684 break;
2685
2686 case OPT_REQUIRE_MEMBERSHIP:
2687 if (strncasecmp_m("S-", require_membership_of, 2) == 0) {
2688 require_membership_of_sid = require_membership_of;
2689 }
2690 break;
2691 }
2692 }
2693
2694 if (opt_username) {
2695 char *domain = SMB_STRDUP(opt_username);
2696 char *p = strchr_m(domain, *lp_winbind_separator());
2697 if (p) {
2698 opt_username = p+1;
2699 *p = '\0';
2700 if (opt_domain && !strequal(opt_domain, domain)) {
2701 x_fprintf(x_stderr, "Domain specified in username (%s) "
2702 "doesn't match specified domain (%s)!\n\n",
2703 domain, opt_domain);
2704 poptPrintHelp(pc, stderr, 0);
2705 exit(1);
2706 }
2707 opt_domain = domain;
2708 } else {
2709 SAFE_FREE(domain);
2710 }
2711 }
2712
2713 /* Note: if opt_domain is "" then send no domain */
2714 if (opt_domain == NULL) {
2715 opt_domain = get_winbind_domain();
2716 }
2717
2718 if (opt_workstation == NULL) {
2719 opt_workstation = "";
2720 }
2721
2722 if (helper_protocol) {
2723 int i;
2724 for (i=0; i<NUM_HELPER_MODES; i++) {
2725 if (strcmp(helper_protocol, stdio_helper_protocols[i].name) == 0) {
2726 squid_stream(stdio_helper_protocols[i].mode, stdio_helper_protocols[i].fn);
2727 exit(0);
2728 }
2729 }
2730 x_fprintf(x_stderr, "unknown helper protocol [%s]\n\nValid helper protools:\n\n", helper_protocol);
2731
2732 for (i=0; i<NUM_HELPER_MODES; i++) {
2733 x_fprintf(x_stderr, "%s\n", stdio_helper_protocols[i].name);
2734 }
2735
2736 exit(1);
2737 }
2738
2739 if (!opt_username || !*opt_username) {
2740 x_fprintf(x_stderr, "username must be specified!\n\n");
2741 poptPrintHelp(pc, stderr, 0);
2742 exit(1);
2743 }
2744
2745 if (opt_challenge.length) {
2746 if (!check_auth_crap()) {
2747 exit(1);
2748 }
2749 exit(0);
2750 }
2751
2752 if (!opt_password) {
2753 opt_password = getpass("password: ");
2754 }
2755
2756 if (diagnostics) {
2757 if (!diagnose_ntlm_auth()) {
2758 return 1;
2759 }
2760 } else {
2761 fstring user;
2762
2763 fstr_sprintf(user, "%s%c%s", opt_domain, winbind_separator(), opt_username);
2764 if (!check_plaintext_auth(user, opt_password, True)) {
2765 return 1;
2766 }
2767 }
2768
2769 /* Exit code */
2770
2771 poptFreeContext(pc);
2772 TALLOC_FREE(frame);
2773 return 0;
2774 }
reg import