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pylibsmb: Return reparse_tag from directory listing
[Samba.git] / source3 / utils / ntlm_auth.c
blob6660a31673af3180330431086fb6b4afa59e4752
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 Copyright (C) Simo Sorce 2010
12
13 This program is free software; you can redistribute it and/or modify
14 it under the terms of the GNU General Public License as published by
15 the Free Software Foundation; either version 3 of the License, or
16 (at your option) any later version.
17
18 This program is distributed in the hope that it will be useful,
19 but WITHOUT ANY WARRANTY; without even the implied warranty of
20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 GNU General Public License for more details.
22
23 You should have received a copy of the GNU General Public License
24 along with this program. If not, see <http://www.gnu.org/licenses/>.
25 */
26
27 #include "includes.h"
28 #include "lib/param/param.h"
29 #include "lib/cmdline/cmdline.h"
30 #include "libcli/security/security.h"
31 #include "utils/ntlm_auth.h"
32 #include "../libcli/auth/libcli_auth.h"
33 #include "auth/ntlmssp/ntlmssp.h"
34 #include "auth/gensec/gensec.h"
35 #include "auth/gensec/gensec_internal.h"
36 #include "auth/credentials/credentials.h"
37 #include "librpc/crypto/gse.h"
38 #include "smb_krb5.h"
39 #include "lib/util/tiniparser.h"
40 #include "librpc/gen_ndr/krb5pac.h"
41 #include "auth/common_auth.h"
42 #include "source3/include/auth.h"
43 #include "source3/auth/proto.h"
44 #include "nsswitch/libwbclient/wbclient.h"
45 #include "nsswitch/winbind_struct_protocol.h"
46 #include "nsswitch/libwbclient/wbclient_internal.h"
47 #include "lib/param/loadparm.h"
48 #include "lib/util/base64.h"
49 #include "cmdline_contexts.h"
50 #include "lib/util/tevent_ntstatus.h"
51 #include "lib/util/string_wrappers.h"
52
53 #include <gnutls/gnutls.h>
54 #include <gnutls/crypto.h>
55
56 #ifdef HAVE_KRB5
57 #include "auth/kerberos/pac_utils.h"
58 #endif
59
60 #ifndef PAM_WINBIND_CONFIG_FILE
61 #define PAM_WINBIND_CONFIG_FILE "/etc/security/pam_winbind.conf"
62 #endif
63
64 #define WINBIND_KRB5_AUTH 0x00000080
65
66 #undef DBGC_CLASS
67 #define DBGC_CLASS DBGC_WINBIND
68
69 #define INITIAL_BUFFER_SIZE 300
70 #define MAX_BUFFER_SIZE 630000
71
72 enum stdio_helper_mode {
73 SQUID_2_4_BASIC,
74 SQUID_2_5_BASIC,
75 SQUID_2_5_NTLMSSP,
76 NTLMSSP_CLIENT_1,
77 GSS_SPNEGO_SERVER,
78 GSS_SPNEGO_CLIENT,
79 NTLM_SERVER_1,
80 NTLM_CHANGE_PASSWORD_1,
81 NUM_HELPER_MODES
82 };
83
84 enum ntlm_auth_cli_state {
85 CLIENT_INITIAL = 0,
86 CLIENT_RESPONSE,
87 CLIENT_FINISHED,
88 CLIENT_ERROR
89 };
90
91 struct ntlm_auth_state {
92 TALLOC_CTX *mem_ctx;
93 enum stdio_helper_mode helper_mode;
94 enum ntlm_auth_cli_state cli_state;
95 struct ntlmssp_state *ntlmssp_state;
96 uint32_t neg_flags;
97 char *want_feature_list;
98 bool have_session_key;
99 DATA_BLOB session_key;
100 DATA_BLOB initial_message;
101 void *gensec_private_1;
102 };
103 typedef void (*stdio_helper_function)(enum stdio_helper_mode stdio_helper_mode,
104 struct loadparm_context *lp_ctx,
105 struct ntlm_auth_state *state, char *buf,
106 int length, void **private2);
107
108 static void manage_gensec_request(enum stdio_helper_mode stdio_helper_mode,
109 struct loadparm_context *lp_ctx,
110 char *buf, int length, void **private1);
111
112 static void manage_squid_request(enum stdio_helper_mode stdio_helper_mode,
113 struct loadparm_context *lp_ctx,
114 struct ntlm_auth_state *state,
115 stdio_helper_function fn, void **private2);
116
117 static void manage_squid_basic_request (enum stdio_helper_mode stdio_helper_mode,
118 struct loadparm_context *lp_ctx,
119 struct ntlm_auth_state *state,
120 char *buf, int length, void **private2);
121
122 static void manage_squid_ntlmssp_request (enum stdio_helper_mode stdio_helper_mode,
123 struct loadparm_context *lp_ctx,
124 struct ntlm_auth_state *state,
125 char *buf, int length, void **private2);
126
127 static void manage_client_ntlmssp_request (enum stdio_helper_mode stdio_helper_mode,
128 struct loadparm_context *lp_ctx,
129 struct ntlm_auth_state *state,
130 char *buf, int length, void **private2);
131
132 static void manage_gss_spnego_request (enum stdio_helper_mode stdio_helper_mode,
133 struct loadparm_context *lp_ctx,
134 struct ntlm_auth_state *state,
135 char *buf, int length, void **private2);
136
137 static void manage_gss_spnego_client_request (enum stdio_helper_mode stdio_helper_mode,
138 struct loadparm_context *lp_ctx,
139 struct ntlm_auth_state *state,
140 char *buf, int length, void **private2);
141
142 static void manage_ntlm_server_1_request (enum stdio_helper_mode stdio_helper_mode,
143 struct loadparm_context *lp_ctx,
144 struct ntlm_auth_state *state,
145 char *buf, int length, void **private2);
146
147 static void manage_ntlm_change_password_1_request(enum stdio_helper_mode stdio_helper_mode,
148 struct loadparm_context *lp_ctx,
149 struct ntlm_auth_state *state,
150 char *buf, int length, void **private2);
151
152 static const struct {
153 enum stdio_helper_mode mode;
154 const char *name;
155 stdio_helper_function fn;
156 } stdio_helper_protocols[] = {
157 { SQUID_2_4_BASIC, "squid-2.4-basic", manage_squid_basic_request},
158 { SQUID_2_5_BASIC, "squid-2.5-basic", manage_squid_basic_request},
159 { SQUID_2_5_NTLMSSP, "squid-2.5-ntlmssp", manage_squid_ntlmssp_request},
160 { NTLMSSP_CLIENT_1, "ntlmssp-client-1", manage_client_ntlmssp_request},
161 { GSS_SPNEGO_SERVER, "gss-spnego", manage_gss_spnego_request},
162 { GSS_SPNEGO_CLIENT, "gss-spnego-client", manage_gss_spnego_client_request},
163 { NTLM_SERVER_1, "ntlm-server-1", manage_ntlm_server_1_request},
164 { NTLM_CHANGE_PASSWORD_1, "ntlm-change-password-1", manage_ntlm_change_password_1_request},
165 { NUM_HELPER_MODES, NULL, NULL}
166 };
167
168 const char *opt_username;
169 const char *opt_domain;
170 const char *opt_workstation;
171 const char *opt_password;
172 static DATA_BLOB opt_challenge;
173 static DATA_BLOB opt_lm_response;
174 static DATA_BLOB opt_nt_response;
175 static int request_lm_key;
176 static int request_user_session_key;
177 static int use_cached_creds;
178 static int offline_logon;
179 static int opt_allow_mschapv2;
180
181 static const char *require_membership_of;
182 static const char *require_membership_of_sid;
183 static const char *opt_pam_winbind_conf;
184
185 const char *opt_target_service;
186 const char *opt_target_hostname;
187
188
189 /* This is a bit hairy, but the basic idea is to do a password callback
190 to the calling application. The callback comes from within gensec */
191
192 static void manage_gensec_get_pw_request(enum stdio_helper_mode stdio_helper_mode,
193 struct loadparm_context *lp_ctx,
194 struct ntlm_auth_state *state, char *buf, int length,
195 void **password)
196 {
197 DATA_BLOB in;
198 if (strlen(buf) < 2) {
199 DEBUG(1, ("query [%s] invalid\n", buf));
200 printf("BH Query invalid\n");
201 return;
202 }
203
204 if (strlen(buf) > 3) {
205 in = base64_decode_data_blob(buf + 3);
206 } else {
207 in = data_blob(NULL, 0);
208 }
209
210 if (strncmp(buf, "PW ", 3) == 0) {
211
212 *password = talloc_strndup(NULL,
213 (const char *)in.data, in.length);
214
215 if (*password == NULL) {
216 DEBUG(1, ("Out of memory\n"));
217 printf("BH Out of memory\n");
218 data_blob_free(&in);
219 return;
220 }
221
222 printf("OK\n");
223 data_blob_free(&in);
224 return;
225 }
226 DEBUG(1, ("Asked for (and expected) a password\n"));
227 printf("BH Expected a password\n");
228 data_blob_free(&in);
229 }
230
231 /**
232 * Callback for password credentials. This is not async, and when
233 * GENSEC and the credentials code is made async, it will look rather
234 * different.
235 */
236
237 static const char *get_password(struct cli_credentials *credentials)
238 {
239 TALLOC_CTX *frame = talloc_stackframe();
240 char *password = NULL;
241 struct ntlm_auth_state *state;
242
243 state = talloc_zero(frame, struct ntlm_auth_state);
244 if (state == NULL) {
245 DEBUG(0, ("squid_stream: Failed to talloc ntlm_auth_state\n"));
246 fprintf(stderr, "ERR\n");
247 exit(1);
248 }
249
250 state->mem_ctx = state;
251
252 /* Ask for a password */
253 printf("PW\n");
254
255 manage_squid_request(NUM_HELPER_MODES /* bogus */, NULL, state, manage_gensec_get_pw_request, (void **)&password);
256 talloc_steal(credentials, password);
257 TALLOC_FREE(frame);
258 return password;
259 }
260
261 /**
262 * A limited set of features are defined with text strings as needed
263 * by ntlm_auth
264 *
265 */
266 static void gensec_want_feature_list(struct gensec_security *state, char* feature_list)
267 {
268 if (in_list("NTLMSSP_FEATURE_SESSION_KEY", feature_list, true)) {
269 DEBUG(10, ("want GENSEC_FEATURE_SESSION_KEY\n"));
270 gensec_want_feature(state, GENSEC_FEATURE_SESSION_KEY);
271 }
272 if (in_list("NTLMSSP_FEATURE_SIGN", feature_list, true)) {
273 DEBUG(10, ("want GENSEC_FEATURE_SIGN\n"));
274 gensec_want_feature(state, GENSEC_FEATURE_SIGN);
275 }
276 if (in_list("NTLMSSP_FEATURE_SEAL", feature_list, true)) {
277 DEBUG(10, ("want GENSEC_FEATURE_SEAL\n"));
278 gensec_want_feature(state, GENSEC_FEATURE_SEAL);
279 }
280 if (in_list("NTLMSSP_FEATURE_CCACHE", feature_list, true)) {
281 DEBUG(10, ("want GENSEC_FEATURE_NTLM_CCACHE\n"));
282 gensec_want_feature(state, GENSEC_FEATURE_NTLM_CCACHE);
283 }
284 }
285
286 static char winbind_separator(void)
287 {
288 struct wbcInterfaceDetails *details;
289 wbcErr ret;
290 static bool got_sep;
291 static char sep;
292
293 if (got_sep)
294 return sep;
295
296 ret = wbcInterfaceDetails(&details);
297 if (!WBC_ERROR_IS_OK(ret)) {
298 d_fprintf(stderr, "could not obtain winbind separator!\n");
299 return *lp_winbind_separator();
300 }
301
302 sep = details->winbind_separator;
303
304 wbcFreeMemory(details);
305
306 got_sep = True;
307
308 if (!sep) {
309 d_fprintf(stderr, "winbind separator was NULL!\n");
310 return *lp_winbind_separator();
311 }
312
313 return sep;
314 }
315
316 const char *get_winbind_domain(void)
317 {
318 struct wbcInterfaceDetails *details;
319 wbcErr ret;
320
321 static fstring winbind_domain;
322 if (*winbind_domain) {
323 return winbind_domain;
324 }
325
326 /* Send off request */
327
328 ret = wbcInterfaceDetails(&details);
329 if (!WBC_ERROR_IS_OK(ret)) {
330 DEBUG(1, ("could not obtain winbind domain name!\n"));
331 return lp_workgroup();
332 }
333
334 fstrcpy(winbind_domain, details->netbios_domain);
335
336 wbcFreeMemory(details);
337
338 return winbind_domain;
339
340 }
341
342 const char *get_winbind_netbios_name(void)
343 {
344 struct wbcInterfaceDetails *details;
345 wbcErr ret;
346
347 static fstring winbind_netbios_name;
348
349 if (*winbind_netbios_name) {
350 return winbind_netbios_name;
351 }
352
353 /* Send off request */
354
355 ret = wbcInterfaceDetails(&details);
356 if (!WBC_ERROR_IS_OK(ret)) {
357 DEBUG(1, ("could not obtain winbind netbios name!\n"));
358 return lp_netbios_name();
359 }
360
361 fstrcpy(winbind_netbios_name, details->netbios_name);
362
363 wbcFreeMemory(details);
364
365 return winbind_netbios_name;
366
367 }
368
369 DATA_BLOB get_challenge(void)
370 {
371 static DATA_BLOB chal;
372 if (opt_challenge.length)
373 return opt_challenge;
374
375 chal = data_blob(NULL, 8);
376
377 generate_random_buffer(chal.data, chal.length);
378 return chal;
379 }
380
381 /* Copy of parse_domain_user from winbindd_util.c. Parse a string of the
382 form DOMAIN/user into a domain and a user */
383
384 static bool parse_ntlm_auth_domain_user(const char *domuser, fstring domain,
385 fstring user)
386 {
387
388 char *p = strchr(domuser,winbind_separator());
389
390 if (!p) {
391 return False;
392 }
393
394 fstrcpy(user, p+1);
395 fstrcpy(domain, domuser);
396 domain[PTR_DIFF(p, domuser)] = 0;
397 return strupper_m(domain);
398 }
399
400 static bool get_require_membership_sid(void) {
401 fstring domain, name, sidbuf;
402 struct wbcDomainSid sid;
403 enum wbcSidType type;
404 wbcErr ret;
405
406 if (!require_membership_of) {
407 return True;
408 }
409
410 if (require_membership_of_sid) {
411 return True;
412 }
413
414 /* Otherwise, ask winbindd for the name->sid request */
415
416 if (!parse_ntlm_auth_domain_user(require_membership_of,
417 domain, name)) {
418 DEBUG(0, ("Could not parse %s into separate domain/name parts!\n",
419 require_membership_of));
420 return False;
421 }
422
423 ret = wbcLookupName(domain, name, &sid, &type);
424 if (!WBC_ERROR_IS_OK(ret)) {
425 DEBUG(0, ("Winbindd lookupname failed to resolve %s into a SID!\n",
426 require_membership_of));
427 return False;
428 }
429
430 wbcSidToStringBuf(&sid, sidbuf, sizeof(sidbuf));
431
432 require_membership_of_sid = SMB_STRDUP(sidbuf);
433
434 if (require_membership_of_sid)
435 return True;
436
437 return False;
438 }
439
440 /*
441 * Get some configuration from pam_winbind.conf to see if we
442 * need to contact trusted domain
443 */
444
445 int get_pam_winbind_config(void)
446 {
447 int ctrl = 0;
448 struct tiniparser_dictionary *d = NULL;
449
450 if (!opt_pam_winbind_conf || !*opt_pam_winbind_conf) {
451 opt_pam_winbind_conf = PAM_WINBIND_CONFIG_FILE;
452 }
453
454 d = tiniparser_load(opt_pam_winbind_conf);
455
456 if (!d) {
457 return 0;
458 }
459
460 if (tiniparser_getboolean(d, "global:krb5_auth", false)) {
461 ctrl |= WINBIND_KRB5_AUTH;
462 }
463
464 tiniparser_freedict(d);
465
466 return ctrl;
467 }
468
469 /* Authenticate a user with a plaintext password */
470
471 static bool check_plaintext_auth(const char *user, const char *pass,
472 bool stdout_diagnostics)
473 {
474 struct winbindd_request request;
475 struct winbindd_response response;
476 wbcErr ret;
477
478 if (!get_require_membership_sid()) {
479 return False;
480 }
481
482 /* Send off request */
483
484 ZERO_STRUCT(request);
485 ZERO_STRUCT(response);
486
487 fstrcpy(request.data.auth.user, user);
488 fstrcpy(request.data.auth.pass, pass);
489 if (require_membership_of_sid) {
490 strlcpy(request.data.auth.require_membership_of_sid,
491 require_membership_of_sid,
492 sizeof(request.data.auth.require_membership_of_sid));
493 }
494
495 if (offline_logon) {
496 request.flags |= WBFLAG_PAM_CACHED_LOGIN;
497 }
498
499 ret = wbcRequestResponse(NULL, WINBINDD_PAM_AUTH,
500 &request, &response);
501
502 /* Display response */
503
504 if (stdout_diagnostics) {
505 if (!WBC_ERROR_IS_OK(ret) && (response.data.auth.nt_status == 0)) {
506 d_fprintf(stderr, "Reading winbind reply failed! (0x01)\n");
507 }
508
509 d_printf("%s: %s (0x%x)\n",
510 response.data.auth.nt_status_string,
511 response.data.auth.error_string,
512 response.data.auth.nt_status);
513 } else {
514 if (!WBC_ERROR_IS_OK(ret) && (response.data.auth.nt_status == 0)) {
515 DEBUG(1, ("Reading winbind reply failed! (0x01)\n"));
516 }
517
518 DEBUG(3, ("%s: %s (0x%x)\n",
519 response.data.auth.nt_status_string,
520 response.data.auth.error_string,
521 response.data.auth.nt_status));
522 }
523
524 return WBC_ERROR_IS_OK(ret);
525 }
526
527 /* authenticate a user with an encrypted username/password */
528
529 NTSTATUS contact_winbind_auth_crap(const char *username,
530 const char *domain,
531 const char *workstation,
532 const DATA_BLOB *challenge,
533 const DATA_BLOB *lm_response,
534 const DATA_BLOB *nt_response,
535 uint32_t flags,
536 uint32_t extra_logon_parameters,
537 uint8_t lm_key[8],
538 uint8_t user_session_key[16],
539 uint8_t *pauthoritative,
540 char **error_string,
541 char **unix_name)
542 {
543 NTSTATUS nt_status;
544 wbcErr ret;
545 struct winbindd_request request;
546 struct winbindd_response response;
547
548 *pauthoritative = 1;
549
550 if (!get_require_membership_sid()) {
551 return NT_STATUS_INVALID_PARAMETER;
552 }
553
554 ZERO_STRUCT(request);
555 ZERO_STRUCT(response);
556
557 request.flags = flags;
558
559 request.data.auth_crap.logon_parameters = extra_logon_parameters
560 | MSV1_0_ALLOW_WORKSTATION_TRUST_ACCOUNT | MSV1_0_ALLOW_SERVER_TRUST_ACCOUNT;
561
562 if (opt_allow_mschapv2) {
563 request.data.auth_crap.logon_parameters |= MSV1_0_ALLOW_MSVCHAPV2;
564 }
565
566 if (require_membership_of_sid)
567 fstrcpy(request.data.auth_crap.require_membership_of_sid, require_membership_of_sid);
568
569 fstrcpy(request.data.auth_crap.user, username);
570 fstrcpy(request.data.auth_crap.domain, domain);
571
572 fstrcpy(request.data.auth_crap.workstation,
573 workstation);
574
575 memcpy(request.data.auth_crap.chal, challenge->data, MIN(challenge->length, 8));
576
577 if (lm_response && lm_response->length) {
578 size_t capped_lm_response_len = MIN(
579 lm_response->length,
580 sizeof(request.data.auth_crap.lm_resp));
581
582 memcpy(request.data.auth_crap.lm_resp,
583 lm_response->data,
584 capped_lm_response_len);
585 request.data.auth_crap.lm_resp_len = capped_lm_response_len;
586 }
587
588 if (nt_response && nt_response->length) {
589 if (nt_response->length > sizeof(request.data.auth_crap.nt_resp)) {
590 request.flags = request.flags | WBFLAG_BIG_NTLMV2_BLOB;
591 request.extra_len = nt_response->length;
592 request.extra_data.data = SMB_MALLOC_ARRAY(char, request.extra_len);
593 if (request.extra_data.data == NULL) {
594 return NT_STATUS_NO_MEMORY;
595 }
596 memcpy(request.extra_data.data, nt_response->data,
597 nt_response->length);
598
599 } else {
600 memcpy(request.data.auth_crap.nt_resp,
601 nt_response->data, nt_response->length);
602 }
603 request.data.auth_crap.nt_resp_len = nt_response->length;
604 }
605
606 ret = wbcRequestResponsePriv(
607 NULL,
608 WINBINDD_PAM_AUTH_CRAP,
609 &request,
610 &response);
611 SAFE_FREE(request.extra_data.data);
612
613 /* Display response */
614
615 if (!WBC_ERROR_IS_OK(ret) && (response.data.auth.nt_status == 0)) {
616 nt_status = NT_STATUS_UNSUCCESSFUL;
617 if (error_string)
618 *error_string = smb_xstrdup("Reading winbind reply failed!");
619 winbindd_free_response(&response);
620 return nt_status;
621 }
622
623 nt_status = (NT_STATUS(response.data.auth.nt_status));
624 if (!NT_STATUS_IS_OK(nt_status)) {
625 if (error_string)
626 *error_string = smb_xstrdup(response.data.auth.error_string);
627 *pauthoritative = response.data.auth.authoritative;
628 winbindd_free_response(&response);
629 return nt_status;
630 }
631
632 if ((flags & WBFLAG_PAM_LMKEY) && lm_key) {
633 memcpy(lm_key, response.data.auth.first_8_lm_hash,
634 sizeof(response.data.auth.first_8_lm_hash));
635 }
636 if ((flags & WBFLAG_PAM_USER_SESSION_KEY) && user_session_key) {
637 memcpy(user_session_key, response.data.auth.user_session_key,
638 sizeof(response.data.auth.user_session_key));
639 }
640
641 if (flags & WBFLAG_PAM_UNIX_NAME) {
642 *unix_name = SMB_STRDUP(response.data.auth.unix_username);
643 if (!*unix_name) {
644 winbindd_free_response(&response);
645 return NT_STATUS_NO_MEMORY;
646 }
647 }
648
649 winbindd_free_response(&response);
650 return nt_status;
651 }
652
653 /* contact server to change user password using auth crap */
654 static NTSTATUS contact_winbind_change_pswd_auth_crap(const char *username,
655 const char *domain,
656 const DATA_BLOB new_nt_pswd,
657 const DATA_BLOB old_nt_hash_enc,
658 const DATA_BLOB new_lm_pswd,
659 const DATA_BLOB old_lm_hash_enc,
660 char **error_string)
661 {
662 NTSTATUS nt_status;
663 wbcErr ret;
664 struct winbindd_request request;
665 struct winbindd_response response;
666
667 if (!get_require_membership_sid())
668 {
669 if(error_string)
670 *error_string = smb_xstrdup("Can't get membership sid.");
671 return NT_STATUS_INVALID_PARAMETER;
672 }
673
674 ZERO_STRUCT(request);
675 ZERO_STRUCT(response);
676
677 if(username != NULL)
678 fstrcpy(request.data.chng_pswd_auth_crap.user, username);
679 if(domain != NULL)
680 fstrcpy(request.data.chng_pswd_auth_crap.domain,domain);
681
682 if(new_nt_pswd.length)
683 {
684 memcpy(request.data.chng_pswd_auth_crap.new_nt_pswd, new_nt_pswd.data, sizeof(request.data.chng_pswd_auth_crap.new_nt_pswd));
685 request.data.chng_pswd_auth_crap.new_nt_pswd_len = new_nt_pswd.length;
686 }
687
688 if(old_nt_hash_enc.length)
689 {
690 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));
691 request.data.chng_pswd_auth_crap.old_nt_hash_enc_len = old_nt_hash_enc.length;
692 }
693
694 if(new_lm_pswd.length)
695 {
696 memcpy(request.data.chng_pswd_auth_crap.new_lm_pswd, new_lm_pswd.data, sizeof(request.data.chng_pswd_auth_crap.new_lm_pswd));
697 request.data.chng_pswd_auth_crap.new_lm_pswd_len = new_lm_pswd.length;
698 }
699
700 if(old_lm_hash_enc.length)
701 {
702 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));
703 request.data.chng_pswd_auth_crap.old_lm_hash_enc_len = old_lm_hash_enc.length;
704 }
705
706 ret = wbcRequestResponse(NULL, WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP,
707 &request, &response);
708
709 /* Display response */
710
711 if (!WBC_ERROR_IS_OK(ret) && (response.data.auth.nt_status == 0))
712 {
713 nt_status = NT_STATUS_UNSUCCESSFUL;
714 if (error_string)
715 *error_string = smb_xstrdup("Reading winbind reply failed!");
716 winbindd_free_response(&response);
717 return nt_status;
718 }
719
720 nt_status = (NT_STATUS(response.data.auth.nt_status));
721 if (!NT_STATUS_IS_OK(nt_status))
722 {
723 if (error_string)
724 *error_string = smb_xstrdup(response.data.auth.error_string);
725 winbindd_free_response(&response);
726 return nt_status;
727 }
728
729 winbindd_free_response(&response);
730
731 return nt_status;
732 }
733
734 /*
735 * This function does not create a full auth_session_info, just enough
736 * for the caller to get the "unix" username
737 */
738 static NTSTATUS ntlm_auth_generate_session_info(struct auth4_context *auth_context,
739 TALLOC_CTX *mem_ctx,
740 void *server_returned_info,
741 const char *original_user_name,
742 uint32_t session_info_flags,
743 struct auth_session_info **session_info_out)
744 {
745 const char *unix_username = (const char *)server_returned_info;
746 struct dom_sid *sids = NULL;
747 struct auth_session_info *session_info = NULL;
748
749 session_info = talloc_zero(mem_ctx, struct auth_session_info);
750 if (session_info == NULL) {
751 return NT_STATUS_NO_MEMORY;
752 }
753
754 session_info->unix_info = talloc_zero(session_info, struct auth_user_info_unix);
755 if (session_info->unix_info == NULL) {
756 TALLOC_FREE(session_info);
757 return NT_STATUS_NO_MEMORY;
758 }
759 session_info->unix_info->unix_name = talloc_strdup(session_info->unix_info,
760 unix_username);
761 if (session_info->unix_info->unix_name == NULL) {
762 TALLOC_FREE(session_info);
763 return NT_STATUS_NO_MEMORY;
764 }
765
766 /*
767 * This is not a full session_info - it is not created
768 * correctly and misses any claims etc, because all we
769 * actually use in the caller is the unix username.
770 *
771 * Therefore so no claims need to be added and
772 * se_access_check() will never run.
773 */
774 session_info->security_token
775 = security_token_initialise(talloc_tos(),
776 CLAIMS_EVALUATION_INVALID_STATE);
777 if (session_info->security_token == NULL) {
778 TALLOC_FREE(session_info);
779 return NT_STATUS_NO_MEMORY;
780 }
781
782 sids = talloc_zero_array(session_info->security_token,
783 struct dom_sid, 3);
784 if (sids == NULL) {
785 TALLOC_FREE(session_info);
786 return NT_STATUS_NO_MEMORY;
787 }
788 sid_copy(&sids[0], &global_sid_World);
789 sid_copy(&sids[1], &global_sid_Network);
790 sid_copy(&sids[2], &global_sid_Authenticated_Users);
791
792 session_info->security_token->num_sids = talloc_array_length(sids);
793 session_info->security_token->sids = sids;
794
795 *session_info_out = session_info;
796
797 return NT_STATUS_OK;
798 }
799
800 static NTSTATUS ntlm_auth_generate_session_info_pac(struct auth4_context *auth_ctx,
801 TALLOC_CTX *mem_ctx,
802 struct smb_krb5_context *smb_krb5_context,
803 DATA_BLOB *pac_blob,
804 const char *princ_name,
805 const struct tsocket_address *remote_address,
806 uint32_t session_info_flags,
807 struct auth_session_info **session_info)
808 {
809 TALLOC_CTX *tmp_ctx;
810 struct PAC_LOGON_INFO *logon_info = NULL;
811 char *unixuser;
812 NTSTATUS status;
813 const char *domain = "";
814 const char *user = "";
815
816 tmp_ctx = talloc_new(mem_ctx);
817 if (!tmp_ctx) {
818 return NT_STATUS_NO_MEMORY;
819 }
820
821 if (pac_blob) {
822 #ifdef HAVE_KRB5
823 status = kerberos_pac_logon_info(tmp_ctx, *pac_blob, NULL, NULL,
824 NULL, NULL, 0, &logon_info);
825 #else
826 status = NT_STATUS_ACCESS_DENIED;
827 #endif
828 if (!NT_STATUS_IS_OK(status)) {
829 goto done;
830 }
831 } else {
832 status = NT_STATUS_ACCESS_DENIED;
833 DBG_WARNING("Kerberos ticket for[%s] has no PAC: %s\n",
834 princ_name, nt_errstr(status));
835 goto done;
836 }
837
838 if (logon_info->info3.base.account_name.string != NULL) {
839 user = logon_info->info3.base.account_name.string;
840 } else {
841 user = "";
842 }
843 if (logon_info->info3.base.logon_domain.string != NULL) {
844 domain = logon_info->info3.base.logon_domain.string;
845 } else {
846 domain = "";
847 }
848
849 if (strlen(user) == 0 || strlen(domain) == 0) {
850 status = NT_STATUS_ACCESS_DENIED;
851 DBG_WARNING("Kerberos ticket for[%s] has invalid "
852 "account_name[%s]/logon_domain[%s]: %s\n",
853 princ_name,
854 logon_info->info3.base.account_name.string,
855 logon_info->info3.base.logon_domain.string,
856 nt_errstr(status));
857 goto done;
858 }
859
860 DBG_NOTICE("Kerberos ticket principal name is [%s] "
861 "account_name[%s]/logon_domain[%s]\n",
862 princ_name, user, domain);
863
864 if (!strequal(domain, lp_workgroup())) {
865 if (!lp_allow_trusted_domains()) {
866 status = NT_STATUS_LOGON_FAILURE;
867 goto done;
868 }
869 }
870
871 unixuser = talloc_asprintf(tmp_ctx, "%s%c%s", domain, winbind_separator(), user);
872 if (!unixuser) {
873 status = NT_STATUS_NO_MEMORY;
874 goto done;
875 }
876
877 status = ntlm_auth_generate_session_info(auth_ctx, mem_ctx, unixuser, NULL, session_info_flags, session_info);
878
879 done:
880 TALLOC_FREE(tmp_ctx);
881 return status;
882 }
883
884
885
886 /**
887 * Return the challenge as determined by the authentication subsystem
888 * @return an 8 byte random challenge
889 */
890
891 static NTSTATUS ntlm_auth_get_challenge(struct auth4_context *auth_ctx,
892 uint8_t chal[8])
893 {
894 if (auth_ctx->challenge.data.length == 8) {
895 DEBUG(5, ("auth_get_challenge: returning previous challenge by module %s (normal)\n",
896 auth_ctx->challenge.set_by));
897 memcpy(chal, auth_ctx->challenge.data.data, 8);
898 return NT_STATUS_OK;
899 }
900
901 if (!auth_ctx->challenge.set_by) {
902 generate_random_buffer(chal, 8);
903
904 auth_ctx->challenge.data = data_blob_talloc(auth_ctx, chal, 8);
905 NT_STATUS_HAVE_NO_MEMORY(auth_ctx->challenge.data.data);
906 auth_ctx->challenge.set_by = "random";
907 }
908
909 DEBUG(10,("auth_get_challenge: challenge set by %s\n",
910 auth_ctx->challenge.set_by));
911
912 return NT_STATUS_OK;
913 }
914
915 /**
916 * NTLM2 authentication modifies the effective challenge,
917 * @param challenge The new challenge value
918 */
919 static NTSTATUS ntlm_auth_set_challenge(struct auth4_context *auth_ctx, const uint8_t chal[8], const char *set_by)
920 {
921 auth_ctx->challenge.set_by = talloc_strdup(auth_ctx, set_by);
922 NT_STATUS_HAVE_NO_MEMORY(auth_ctx->challenge.set_by);
923
924 auth_ctx->challenge.data = data_blob_talloc(auth_ctx, chal, 8);
925 NT_STATUS_HAVE_NO_MEMORY(auth_ctx->challenge.data.data);
926
927 return NT_STATUS_OK;
928 }
929
930 /**
931 * Check the password on an NTLMSSP login.
932 *
933 * Return the session keys used on the connection.
934 */
935
936 struct winbind_pw_check_state {
937 uint8_t authoritative;
938 void *server_info;
939 DATA_BLOB nt_session_key;
940 DATA_BLOB lm_session_key;
941 };
942
943 static struct tevent_req *winbind_pw_check_send(
944 TALLOC_CTX *mem_ctx,
945 struct tevent_context *ev,
946 struct auth4_context *auth4_context,
947 const struct auth_usersupplied_info *user_info)
948 {
949 struct tevent_req *req = NULL;
950 struct winbind_pw_check_state *state = NULL;
951 NTSTATUS nt_status;
952 char *error_string = NULL;
953 uint8_t lm_key[8];
954 uint8_t user_sess_key[16];
955 char *unix_name = NULL;
956
957 req = tevent_req_create(
958 mem_ctx, &state, struct winbind_pw_check_state);
959 if (req == NULL) {
960 return NULL;
961 }
962
963 nt_status = contact_winbind_auth_crap(
964 user_info->client.account_name,
965 user_info->client.domain_name,
966 user_info->workstation_name,
967 &auth4_context->challenge.data,
968 &user_info->password.response.lanman,
969 &user_info->password.response.nt,
970 WBFLAG_PAM_LMKEY |
971 WBFLAG_PAM_USER_SESSION_KEY |
972 WBFLAG_PAM_UNIX_NAME,
973 0,
974 lm_key, user_sess_key,
975 &state->authoritative,
976 &error_string,
977 &unix_name);
978
979 if (tevent_req_nterror(req, nt_status)) {
980 if (NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED)) {
981 DBG_ERR("Login for user [%s]\\[%s]@[%s] failed due "
982 "to [%s]\n",
983 user_info->client.domain_name,
984 user_info->client.account_name,
985 user_info->workstation_name,
986 error_string ?
987 error_string :
988 "unknown error (NULL)");
989 } else {
990 DBG_NOTICE("Login for user [%s]\\[%s]@[%s] failed due "
991 "to [%s]\n",
992 user_info->client.domain_name,
993 user_info->client.account_name,
994 user_info->workstation_name,
995 error_string ?
996 error_string :
997 "unknown error (NULL)");
998 }
999 goto done;
1000 }
1001
1002 if (!all_zero(lm_key, 8)) {
1003 state->lm_session_key = data_blob_talloc(state, NULL, 16);
1004 if (tevent_req_nomem(state->lm_session_key.data, req)) {
1005 goto done;
1006 }
1007 memcpy(state->lm_session_key.data, lm_key, 8);
1008 memset(state->lm_session_key.data+8, '\0', 8);
1009 }
1010 if (!all_zero(user_sess_key, 16)) {
1011 state->nt_session_key = data_blob_talloc(
1012 state, user_sess_key, 16);
1013 if (tevent_req_nomem(state->nt_session_key.data, req)) {
1014 goto done;
1015 }
1016 }
1017 state->server_info = talloc_strdup(state, unix_name);
1018 if (tevent_req_nomem(state->server_info, req)) {
1019 goto done;
1020 }
1021 tevent_req_done(req);
1022
1023 done:
1024 SAFE_FREE(error_string);
1025 SAFE_FREE(unix_name);
1026 return tevent_req_post(req, ev);
1027 }
1028
1029 static NTSTATUS winbind_pw_check_recv(struct tevent_req *req,
1030 TALLOC_CTX *mem_ctx,
1031 uint8_t *pauthoritative,
1032 void **server_returned_info,
1033 DATA_BLOB *nt_session_key,
1034 DATA_BLOB *lm_session_key)
1035 {
1036 struct winbind_pw_check_state *state = tevent_req_data(
1037 req, struct winbind_pw_check_state);
1038 NTSTATUS status;
1039
1040 if (pauthoritative != NULL) {
1041 *pauthoritative = state->authoritative;
1042 }
1043
1044 if (tevent_req_is_nterror(req, &status)) {
1045 return status;
1046 }
1047
1048 if (server_returned_info != NULL) {
1049 *server_returned_info = talloc_move(
1050 mem_ctx, &state->server_info);
1051 }
1052 if (nt_session_key != NULL) {
1053 *nt_session_key = (DATA_BLOB) {
1054 .data = talloc_move(
1055 mem_ctx, &state->nt_session_key.data),
1056 .length = state->nt_session_key.length,
1057 };
1058 }
1059 if (lm_session_key != NULL) {
1060 *lm_session_key = (DATA_BLOB) {
1061 .data = talloc_move(
1062 mem_ctx, &state->lm_session_key.data),
1063 .length = state->lm_session_key.length,
1064 };
1065 }
1066
1067 return NT_STATUS_OK;
1068 }
1069
1070 struct local_pw_check_state {
1071 uint8_t authoritative;
1072 void *server_info;
1073 DATA_BLOB nt_session_key;
1074 DATA_BLOB lm_session_key;
1075 };
1076
1077 static struct tevent_req *local_pw_check_send(
1078 TALLOC_CTX *mem_ctx,
1079 struct tevent_context *ev,
1080 struct auth4_context *auth4_context,
1081 const struct auth_usersupplied_info *user_info)
1082 {
1083 struct tevent_req *req = NULL;
1084 struct local_pw_check_state *state = NULL;
1085 struct samr_Password lm_pw, nt_pw;
1086 NTSTATUS nt_status;
1087
1088 req = tevent_req_create(
1089 mem_ctx, &state, struct local_pw_check_state);
1090 if (req == NULL) {
1091 return NULL;
1092 }
1093 state->authoritative = 1;
1094
1095 nt_lm_owf_gen (opt_password, nt_pw.hash, lm_pw.hash);
1096
1097 nt_status = ntlm_password_check(
1098 state,
1099 true,
1100 NTLM_AUTH_ON,
1101 0,
1102 &auth4_context->challenge.data,
1103 &user_info->password.response.lanman,
1104 &user_info->password.response.nt,
1105 user_info->client.account_name,
1106 user_info->client.account_name,
1107 user_info->client.domain_name,
1108 &lm_pw,
1109 &nt_pw,
1110 &state->nt_session_key,
1111 &state->lm_session_key);
1112
1113 if (tevent_req_nterror(req, nt_status)) {
1114 DBG_NOTICE("Login for user [%s]\\[%s]@[%s] failed due to "
1115 "[%s]\n",
1116 user_info->client.domain_name,
1117 user_info->client.account_name,
1118 user_info->workstation_name,
1119 nt_errstr(nt_status));
1120 return tevent_req_post(req, ev);
1121 }
1122
1123 state->server_info = talloc_asprintf(
1124 state,
1125 "%s%c%s",
1126 user_info->client.domain_name,
1127 *lp_winbind_separator(),
1128 user_info->client.account_name);
1129 if (tevent_req_nomem(state->server_info, req)) {
1130 return tevent_req_post(req, ev);
1131 }
1132
1133 tevent_req_done(req);
1134 return tevent_req_post(req, ev);
1135 }
1136
1137 static NTSTATUS local_pw_check_recv(struct tevent_req *req,
1138 TALLOC_CTX *mem_ctx,
1139 uint8_t *pauthoritative,
1140 void **server_returned_info,
1141 DATA_BLOB *nt_session_key,
1142 DATA_BLOB *lm_session_key)
1143 {
1144 struct local_pw_check_state *state = tevent_req_data(
1145 req, struct local_pw_check_state);
1146 NTSTATUS status;
1147
1148 if (pauthoritative != NULL) {
1149 *pauthoritative = state->authoritative;
1150 }
1151
1152 if (tevent_req_is_nterror(req, &status)) {
1153 return status;
1154 }
1155
1156 if (server_returned_info != NULL) {
1157 *server_returned_info = talloc_move(
1158 mem_ctx, &state->server_info);
1159 }
1160 if (nt_session_key != NULL) {
1161 *nt_session_key = (DATA_BLOB) {
1162 .data = talloc_move(
1163 mem_ctx, &state->nt_session_key.data),
1164 .length = state->nt_session_key.length,
1165 };
1166 }
1167 if (lm_session_key != NULL) {
1168 *lm_session_key = (DATA_BLOB) {
1169 .data = talloc_move(
1170 mem_ctx, &state->lm_session_key.data),
1171 .length = state->lm_session_key.length,
1172 };
1173 }
1174
1175 return NT_STATUS_OK;
1176 }
1177
1178 static NTSTATUS ntlm_auth_prepare_gensec_client(TALLOC_CTX *mem_ctx,
1179 struct loadparm_context *lp_ctx,
1180 struct gensec_security **gensec_security_out)
1181 {
1182 struct gensec_security *gensec_security = NULL;
1183 NTSTATUS nt_status;
1184 TALLOC_CTX *tmp_ctx;
1185 const struct gensec_security_ops **backends = NULL;
1186 struct gensec_settings *gensec_settings = NULL;
1187 size_t idx = 0;
1188
1189 tmp_ctx = talloc_new(mem_ctx);
1190 NT_STATUS_HAVE_NO_MEMORY(tmp_ctx);
1191
1192 gensec_settings = lpcfg_gensec_settings(tmp_ctx, lp_ctx);
1193 if (gensec_settings == NULL) {
1194 DEBUG(10, ("lpcfg_gensec_settings failed\n"));
1195 TALLOC_FREE(tmp_ctx);
1196 return NT_STATUS_NO_MEMORY;
1197 }
1198
1199 backends = talloc_zero_array(gensec_settings,
1200 const struct gensec_security_ops *, 4);
1201 if (backends == NULL) {
1202 TALLOC_FREE(tmp_ctx);
1203 return NT_STATUS_NO_MEMORY;
1204 }
1205 gensec_settings->backends = backends;
1206
1207 gensec_init();
1208
1209 /* These need to be in priority order, krb5 before NTLMSSP */
1210 #if defined(HAVE_KRB5)
1211 backends[idx++] = &gensec_gse_krb5_security_ops;
1212 #endif
1213
1214 backends[idx++] = gensec_security_by_oid(NULL, GENSEC_OID_NTLMSSP);
1215
1216 backends[idx++] = gensec_security_by_oid(NULL, GENSEC_OID_SPNEGO);
1217
1218 nt_status = gensec_client_start(NULL, &gensec_security,
1219 gensec_settings);
1220 if (!NT_STATUS_IS_OK(nt_status)) {
1221 TALLOC_FREE(tmp_ctx);
1222 return nt_status;
1223 }
1224
1225 talloc_unlink(tmp_ctx, gensec_settings);
1226
1227 if (opt_target_service != NULL) {
1228 nt_status = gensec_set_target_service(gensec_security,
1229 opt_target_service);
1230 if (!NT_STATUS_IS_OK(nt_status)) {
1231 TALLOC_FREE(tmp_ctx);
1232 return nt_status;
1233 }
1234 }
1235
1236 if (opt_target_hostname != NULL) {
1237 nt_status = gensec_set_target_hostname(gensec_security,
1238 opt_target_hostname);
1239 if (!NT_STATUS_IS_OK(nt_status)) {
1240 TALLOC_FREE(tmp_ctx);
1241 return nt_status;
1242 }
1243 }
1244
1245 *gensec_security_out = talloc_steal(mem_ctx, gensec_security);
1246 TALLOC_FREE(tmp_ctx);
1247 return NT_STATUS_OK;
1248 }
1249
1250 static struct auth4_context *make_auth4_context_ntlm_auth(TALLOC_CTX *mem_ctx, bool local_pw)
1251 {
1252 struct auth4_context *auth4_context = talloc_zero(mem_ctx, struct auth4_context);
1253 if (auth4_context == NULL) {
1254 DEBUG(10, ("failed to allocate auth4_context\n"));
1255 return NULL;
1256 }
1257 auth4_context->generate_session_info = ntlm_auth_generate_session_info;
1258 auth4_context->generate_session_info_pac = ntlm_auth_generate_session_info_pac;
1259 auth4_context->get_ntlm_challenge = ntlm_auth_get_challenge;
1260 auth4_context->set_ntlm_challenge = ntlm_auth_set_challenge;
1261 if (local_pw) {
1262 auth4_context->check_ntlm_password_send = local_pw_check_send;
1263 auth4_context->check_ntlm_password_recv = local_pw_check_recv;
1264 } else {
1265 auth4_context->check_ntlm_password_send =
1266 winbind_pw_check_send;
1267 auth4_context->check_ntlm_password_recv =
1268 winbind_pw_check_recv;
1269 }
1270 auth4_context->private_data = NULL;
1271 return auth4_context;
1272 }
1273
1274 static NTSTATUS ntlm_auth_prepare_gensec_server(TALLOC_CTX *mem_ctx,
1275 struct loadparm_context *lp_ctx,
1276 struct gensec_security **gensec_security_out)
1277 {
1278 struct gensec_security *gensec_security;
1279 NTSTATUS nt_status;
1280
1281 TALLOC_CTX *tmp_ctx;
1282 const struct gensec_security_ops **backends;
1283 struct gensec_settings *gensec_settings;
1284 size_t idx = 0;
1285 struct cli_credentials *server_credentials;
1286
1287 struct auth4_context *auth4_context;
1288
1289 tmp_ctx = talloc_new(mem_ctx);
1290 NT_STATUS_HAVE_NO_MEMORY(tmp_ctx);
1291
1292 auth4_context = make_auth4_context_ntlm_auth(tmp_ctx, opt_password);
1293 if (auth4_context == NULL) {
1294 TALLOC_FREE(tmp_ctx);
1295 return NT_STATUS_NO_MEMORY;
1296 }
1297
1298 gensec_settings = lpcfg_gensec_settings(tmp_ctx, lp_ctx);
1299 if (lp_ctx == NULL) {
1300 DEBUG(10, ("lpcfg_gensec_settings failed\n"));
1301 TALLOC_FREE(tmp_ctx);
1302 return NT_STATUS_NO_MEMORY;
1303 }
1304
1305 /*
1306 * This should be a 'netbios domain -> DNS domain'
1307 * mapping, and can currently validly return NULL on
1308 * poorly configured systems.
1309 *
1310 * This is used for the NTLMSSP server
1311 *
1312 */
1313 if (opt_password) {
1314 gensec_settings->server_netbios_name = lp_netbios_name();
1315 gensec_settings->server_netbios_domain = lp_workgroup();
1316 } else {
1317 gensec_settings->server_netbios_name = get_winbind_netbios_name();
1318 gensec_settings->server_netbios_domain = get_winbind_domain();
1319 }
1320
1321 gensec_settings->server_dns_domain = strlower_talloc(gensec_settings,
1322 get_mydnsdomname(talloc_tos()));
1323 gensec_settings->server_dns_name = strlower_talloc(gensec_settings,
1324 get_mydnsfullname());
1325
1326 backends = talloc_zero_array(gensec_settings,
1327 const struct gensec_security_ops *, 4);
1328
1329 if (backends == NULL) {
1330 TALLOC_FREE(tmp_ctx);
1331 return NT_STATUS_NO_MEMORY;
1332 }
1333 gensec_settings->backends = backends;
1334
1335 gensec_init();
1336
1337 /* These need to be in priority order, krb5 before NTLMSSP */
1338 #if defined(HAVE_KRB5)
1339 backends[idx++] = &gensec_gse_krb5_security_ops;
1340 #endif
1341
1342 backends[idx++] = gensec_security_by_oid(NULL, GENSEC_OID_NTLMSSP);
1343
1344 backends[idx++] = gensec_security_by_oid(NULL, GENSEC_OID_SPNEGO);
1345
1346 /*
1347 * This is anonymous for now, because we just use it
1348 * to set the kerberos state at the moment
1349 */
1350 server_credentials = cli_credentials_init_anon(tmp_ctx);
1351 if (!server_credentials) {
1352 DBG_ERR("Failed to init server credentials\n");
1353 return NT_STATUS_NO_MEMORY;
1354 }
1355
1356 cli_credentials_set_conf(server_credentials, lp_ctx);
1357
1358 if (lp_server_role() == ROLE_ACTIVE_DIRECTORY_DC || lp_security() == SEC_ADS || USE_KERBEROS_KEYTAB) {
1359 cli_credentials_set_kerberos_state(server_credentials,
1360 CRED_USE_KERBEROS_DESIRED,
1361 CRED_SPECIFIED);
1362 } else {
1363 cli_credentials_set_kerberos_state(server_credentials,
1364 CRED_USE_KERBEROS_DISABLED,
1365 CRED_SPECIFIED);
1366 }
1367
1368 nt_status = gensec_server_start(tmp_ctx, gensec_settings,
1369 auth4_context, &gensec_security);
1370
1371 if (!NT_STATUS_IS_OK(nt_status)) {
1372 TALLOC_FREE(tmp_ctx);
1373 return nt_status;
1374 }
1375
1376 gensec_set_credentials(gensec_security, server_credentials);
1377
1378 /*
1379 * TODO: Allow the caller to pass their own description here
1380 * via a command-line option
1381 */
1382 nt_status = gensec_set_target_service_description(gensec_security,
1383 "ntlm_auth");
1384 if (!NT_STATUS_IS_OK(nt_status)) {
1385 TALLOC_FREE(tmp_ctx);
1386 return nt_status;
1387 }
1388
1389 talloc_unlink(tmp_ctx, lp_ctx);
1390 talloc_unlink(tmp_ctx, server_credentials);
1391 talloc_unlink(tmp_ctx, gensec_settings);
1392 talloc_unlink(tmp_ctx, auth4_context);
1393
1394 *gensec_security_out = talloc_steal(mem_ctx, gensec_security);
1395 TALLOC_FREE(tmp_ctx);
1396 return NT_STATUS_OK;
1397 }
1398
1399 static void manage_client_ntlmssp_request(enum stdio_helper_mode stdio_helper_mode,
1400 struct loadparm_context *lp_ctx,
1401 struct ntlm_auth_state *state,
1402 char *buf, int length, void **private2)
1403 {
1404 manage_gensec_request(stdio_helper_mode, lp_ctx, buf, length, &state->gensec_private_1);
1405 return;
1406 }
1407
1408 static void manage_squid_basic_request(enum stdio_helper_mode stdio_helper_mode,
1409 struct loadparm_context *lp_ctx,
1410 struct ntlm_auth_state *state,
1411 char *buf, int length, void **private2)
1412 {
1413 char *user, *pass;
1414 user=buf;
1415
1416 pass=(char *)memchr(buf,' ',length);
1417 if (!pass) {
1418 DEBUG(2, ("Password not found. Denying access\n"));
1419 printf("ERR\n");
1420 return;
1421 }
1422 *pass='\0';
1423 pass++;
1424
1425 if (state->helper_mode == SQUID_2_5_BASIC) {
1426 char *end = rfc1738_unescape(user);
1427 if (end == NULL || (end - user) != strlen(user)) {
1428 DEBUG(2, ("Badly rfc1738 encoded username: %s; "
1429 "denying access\n", user));
1430 printf("ERR\n");
1431 return;
1432 }
1433 end = rfc1738_unescape(pass);
1434 if (end == NULL || (end - pass) != strlen(pass)) {
1435 DEBUG(2, ("Badly encoded password for %s; "
1436 "denying access\n", user));
1437 printf("ERR\n");
1438 return;
1439 }
1440 }
1441
1442 if (check_plaintext_auth(user, pass, False)) {
1443 printf("OK\n");
1444 } else {
1445 printf("ERR\n");
1446 }
1447 }
1448
1449 static void manage_gensec_request(enum stdio_helper_mode stdio_helper_mode,
1450 struct loadparm_context *lp_ctx,
1451 char *buf, int length, void **private1)
1452 {
1453 DATA_BLOB in;
1454 DATA_BLOB out = data_blob(NULL, 0);
1455 char *out_base64 = NULL;
1456 const char *reply_arg = NULL;
1457 struct gensec_ntlm_state {
1458 struct gensec_security *gensec_state;
1459 const char *set_password;
1460 };
1461 struct gensec_ntlm_state *state;
1462
1463 NTSTATUS nt_status;
1464 bool first = false;
1465 const char *reply_code;
1466 struct cli_credentials *creds;
1467
1468 static char *want_feature_list = NULL;
1469 static DATA_BLOB session_key;
1470
1471 TALLOC_CTX *mem_ctx;
1472
1473 mem_ctx = talloc_named(NULL, 0, "manage_gensec_request internal mem_ctx");
1474 if (mem_ctx == NULL) {
1475 printf("BH No Memory\n");
1476 exit(1);
1477 }
1478
1479 if (*private1) {
1480 state = talloc_get_type(*private1, struct gensec_ntlm_state);
1481 if (state == NULL) {
1482 DBG_WARNING("*private1 is of type %s\n",
1483 talloc_get_name(*private1));
1484 printf("BH *private1 is of type %s\n",
1485 talloc_get_name(*private1));
1486 exit(1);
1487 }
1488 } else {
1489 state = talloc_zero(NULL, struct gensec_ntlm_state);
1490 if (!state) {
1491 printf("BH No Memory\n");
1492 exit(1);
1493 }
1494 *private1 = state;
1495 if (opt_password) {
1496 state->set_password = opt_password;
1497 }
1498 }
1499
1500 if (strlen(buf) < 2) {
1501 DEBUG(1, ("query [%s] invalid\n", buf));
1502 printf("BH Query invalid\n");
1503 talloc_free(mem_ctx);
1504 return;
1505 }
1506
1507 if (strlen(buf) > 3) {
1508 if(strncmp(buf, "SF ", 3) == 0) {
1509 DEBUG(10, ("Setting flags to negotiate\n"));
1510 talloc_free(want_feature_list);
1511 want_feature_list = talloc_strndup(state, buf+3, strlen(buf)-3);
1512 printf("OK\n");
1513 talloc_free(mem_ctx);
1514 return;
1515 }
1516 in = base64_decode_data_blob_talloc(mem_ctx, buf + 3);
1517 } else {
1518 in = data_blob(NULL, 0);
1519 }
1520
1521 if (strncmp(buf, "YR", 2) == 0) {
1522 if (state->gensec_state) {
1523 talloc_free(state->gensec_state);
1524 state->gensec_state = NULL;
1525 }
1526 } else if ( (strncmp(buf, "OK", 2) == 0)) {
1527 /* Just return BH, like ntlm_auth from Samba 3 does. */
1528 printf("BH Command expected\n");
1529 talloc_free(mem_ctx);
1530 return;
1531 } else if ( (strncmp(buf, "TT ", 3) != 0) &&
1532 (strncmp(buf, "KK ", 3) != 0) &&
1533 (strncmp(buf, "AF ", 3) != 0) &&
1534 (strncmp(buf, "NA ", 3) != 0) &&
1535 (strncmp(buf, "UG", 2) != 0) &&
1536 (strncmp(buf, "PW ", 3) != 0) &&
1537 (strncmp(buf, "GK", 2) != 0) &&
1538 (strncmp(buf, "GF", 2) != 0)) {
1539 DEBUG(1, ("SPNEGO request [%s] invalid prefix\n", buf));
1540 printf("BH SPNEGO request invalid prefix\n");
1541 talloc_free(mem_ctx);
1542 return;
1543 }
1544
1545 /* setup gensec */
1546 if (!(state->gensec_state)) {
1547 switch (stdio_helper_mode) {
1548 case GSS_SPNEGO_CLIENT:
1549 /*
1550 * cached credentials are only supported by
1551 * NTLMSSP_CLIENT_1 for now.
1552 */
1553 use_cached_creds = false;
1554 FALL_THROUGH;
1555 case NTLMSSP_CLIENT_1:
1556 /* setup the client side */
1557
1558 if (state->set_password != NULL) {
1559 use_cached_creds = false;
1560 }
1561
1562 if (use_cached_creds) {
1563 struct wbcCredentialCacheParams params;
1564 struct wbcCredentialCacheInfo *info = NULL;
1565 struct wbcAuthErrorInfo *error = NULL;
1566 wbcErr wbc_status;
1567
1568 params.account_name = opt_username;
1569 params.domain_name = opt_domain;
1570 params.level = WBC_CREDENTIAL_CACHE_LEVEL_NTLMSSP;
1571 params.num_blobs = 0;
1572 params.blobs = NULL;
1573
1574 wbc_status = wbcCredentialCache(&params, &info,
1575 &error);
1576 wbcFreeMemory(error);
1577 if (!WBC_ERROR_IS_OK(wbc_status)) {
1578 use_cached_creds = false;
1579 }
1580 wbcFreeMemory(info);
1581 }
1582
1583 nt_status = ntlm_auth_prepare_gensec_client(state, lp_ctx,
1584 &state->gensec_state);
1585 if (!NT_STATUS_IS_OK(nt_status)) {
1586 printf("BH GENSEC mech failed to start: %s\n",
1587 nt_errstr(nt_status));
1588 talloc_free(mem_ctx);
1589 return;
1590 }
1591
1592 creds = cli_credentials_init(state->gensec_state);
1593 cli_credentials_set_conf(creds, lp_ctx);
1594 if (opt_username) {
1595 cli_credentials_set_username(creds, opt_username, CRED_SPECIFIED);
1596 }
1597 if (opt_domain) {
1598 cli_credentials_set_domain(creds, opt_domain, CRED_SPECIFIED);
1599 }
1600 if (use_cached_creds) {
1601 gensec_want_feature(state->gensec_state,
1602 GENSEC_FEATURE_NTLM_CCACHE);
1603 } else if (state->set_password) {
1604 cli_credentials_set_password(creds, state->set_password, CRED_SPECIFIED);
1605 } else {
1606 cli_credentials_set_password_callback(creds, get_password);
1607 }
1608 if (opt_workstation) {
1609 cli_credentials_set_workstation(creds, opt_workstation, CRED_SPECIFIED);
1610 }
1611
1612 gensec_set_credentials(state->gensec_state, creds);
1613
1614 break;
1615 case GSS_SPNEGO_SERVER:
1616 case SQUID_2_5_NTLMSSP:
1617 {
1618 nt_status = ntlm_auth_prepare_gensec_server(state, lp_ctx,
1619 &state->gensec_state);
1620 if (!NT_STATUS_IS_OK(nt_status)) {
1621 printf("BH GENSEC mech failed to start: %s\n",
1622 nt_errstr(nt_status));
1623 talloc_free(mem_ctx);
1624 return;
1625 }
1626 break;
1627 }
1628 default:
1629 talloc_free(mem_ctx);
1630 abort();
1631 }
1632
1633 gensec_want_feature_list(state->gensec_state, want_feature_list);
1634
1635 /* Session info is not complete, do not pass to auth log */
1636 gensec_want_feature(state->gensec_state, GENSEC_FEATURE_NO_AUTHZ_LOG);
1637
1638 switch (stdio_helper_mode) {
1639 case GSS_SPNEGO_CLIENT:
1640 case GSS_SPNEGO_SERVER:
1641 nt_status = gensec_start_mech_by_oid(state->gensec_state, GENSEC_OID_SPNEGO);
1642 if (!in.length) {
1643 first = true;
1644 }
1645 break;
1646 case NTLMSSP_CLIENT_1:
1647 if (!in.length) {
1648 first = true;
1649 }
1650 FALL_THROUGH;
1651 case SQUID_2_5_NTLMSSP:
1652 nt_status = gensec_start_mech_by_oid(state->gensec_state, GENSEC_OID_NTLMSSP);
1653 break;
1654 default:
1655 talloc_free(mem_ctx);
1656 abort();
1657 }
1658
1659 if (!NT_STATUS_IS_OK(nt_status)) {
1660 DEBUG(1, ("GENSEC mech failed to start: %s\n", nt_errstr(nt_status)));
1661 printf("BH GENSEC mech failed to start\n");
1662 talloc_free(mem_ctx);
1663 return;
1664 }
1665
1666 }
1667
1668 /* update */
1669
1670 if (strncmp(buf, "PW ", 3) == 0) {
1671 state->set_password = talloc_strndup(state,
1672 (const char *)in.data,
1673 in.length);
1674
1675 cli_credentials_set_password(gensec_get_credentials(state->gensec_state),
1676 state->set_password,
1677 CRED_SPECIFIED);
1678 printf("OK\n");
1679 talloc_free(mem_ctx);
1680 return;
1681 }
1682
1683 if (strncmp(buf, "GK", 2) == 0) {
1684 char *base64_key;
1685 DEBUG(10, ("Requested session key\n"));
1686 nt_status = gensec_session_key(state->gensec_state, mem_ctx, &session_key);
1687 if(!NT_STATUS_IS_OK(nt_status)) {
1688 DEBUG(1, ("gensec_session_key failed: %s\n", nt_errstr(nt_status)));
1689 printf("BH No session key\n");
1690 talloc_free(mem_ctx);
1691 return;
1692 } else {
1693 base64_key = base64_encode_data_blob(state, session_key);
1694 SMB_ASSERT(base64_key != NULL);
1695 printf("GK %s\n", base64_key);
1696 talloc_free(base64_key);
1697 }
1698 talloc_free(mem_ctx);
1699 return;
1700 }
1701
1702 if (strncmp(buf, "GF", 2) == 0) {
1703 uint32_t neg_flags;
1704
1705 DEBUG(10, ("Requested negotiated NTLMSSP feature flags\n"));
1706
1707 neg_flags = gensec_ntlmssp_neg_flags(state->gensec_state);
1708 if (neg_flags == 0) {
1709 printf("BH\n");
1710 talloc_free(mem_ctx);
1711 return;
1712 }
1713
1714 printf("GF 0x%08x\n", neg_flags);
1715 talloc_free(mem_ctx);
1716 return;
1717 }
1718
1719 nt_status = gensec_update(state->gensec_state, mem_ctx, in, &out);
1720
1721 /* don't leak 'bad password'/'no such user' info to the network client */
1722 nt_status = nt_status_squash(nt_status);
1723
1724 if (out.length) {
1725 out_base64 = base64_encode_data_blob(mem_ctx, out);
1726 SMB_ASSERT(out_base64 != NULL);
1727 } else {
1728 out_base64 = NULL;
1729 }
1730
1731 if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1732 reply_arg = "*";
1733 if (first && state->gensec_state->gensec_role == GENSEC_CLIENT) {
1734 reply_code = "YR";
1735 } else if (state->gensec_state->gensec_role == GENSEC_CLIENT) {
1736 reply_code = "KK";
1737 } else if (state->gensec_state->gensec_role == GENSEC_SERVER) {
1738 reply_code = "TT";
1739 } else {
1740 abort();
1741 }
1742
1743
1744 } else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED)) {
1745 reply_code = "BH NT_STATUS_ACCESS_DENIED";
1746 reply_arg = nt_errstr(nt_status);
1747 DEBUG(1, ("GENSEC login failed: %s\n", nt_errstr(nt_status)));
1748 } else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_UNSUCCESSFUL)) {
1749 reply_code = "BH NT_STATUS_UNSUCCESSFUL";
1750 reply_arg = nt_errstr(nt_status);
1751 DEBUG(1, ("GENSEC login failed: %s\n", nt_errstr(nt_status)));
1752 } else if (!NT_STATUS_IS_OK(nt_status)) {
1753 reply_code = "NA";
1754 reply_arg = nt_errstr(nt_status);
1755 DEBUG(1, ("GENSEC login failed: %s\n", nt_errstr(nt_status)));
1756 } else if /* OK */ (state->gensec_state->gensec_role == GENSEC_SERVER) {
1757 struct auth_session_info *session_info;
1758
1759 nt_status = gensec_session_info(state->gensec_state, mem_ctx, &session_info);
1760 if (!NT_STATUS_IS_OK(nt_status)) {
1761 reply_code = "BH Failed to retrieve session info";
1762 reply_arg = nt_errstr(nt_status);
1763 DEBUG(1, ("GENSEC failed to retrieve the session info: %s\n", nt_errstr(nt_status)));
1764 } else {
1765
1766 reply_code = "AF";
1767 reply_arg = talloc_strdup(state->gensec_state, session_info->unix_info->unix_name);
1768 if (reply_arg == NULL) {
1769 reply_code = "BH out of memory";
1770 reply_arg = nt_errstr(NT_STATUS_NO_MEMORY);
1771 }
1772 talloc_free(session_info);
1773 }
1774 } else if (state->gensec_state->gensec_role == GENSEC_CLIENT) {
1775 reply_code = "AF";
1776 reply_arg = out_base64;
1777 } else {
1778 abort();
1779 }
1780
1781 switch (stdio_helper_mode) {
1782 case GSS_SPNEGO_SERVER:
1783 printf("%s %s %s\n", reply_code,
1784 out_base64 ? out_base64 : "*",
1785 reply_arg ? reply_arg : "*");
1786 break;
1787 default:
1788 if (out_base64) {
1789 printf("%s %s\n", reply_code, out_base64);
1790 } else if (reply_arg) {
1791 printf("%s %s\n", reply_code, reply_arg);
1792 } else {
1793 printf("%s\n", reply_code);
1794 }
1795 }
1796
1797 talloc_free(mem_ctx);
1798 return;
1799 }
1800
1801 static void manage_gss_spnego_request(enum stdio_helper_mode stdio_helper_mode,
1802 struct loadparm_context *lp_ctx,
1803 struct ntlm_auth_state *state,
1804 char *buf, int length, void **private2)
1805 {
1806 manage_gensec_request(stdio_helper_mode, lp_ctx, buf, length, &state->gensec_private_1);
1807 return;
1808 }
1809
1810 static void manage_squid_ntlmssp_request(enum stdio_helper_mode stdio_helper_mode,
1811 struct loadparm_context *lp_ctx,
1812 struct ntlm_auth_state *state,
1813 char *buf, int length, void **private2)
1814 {
1815 manage_gensec_request(stdio_helper_mode, lp_ctx, buf, length, &state->gensec_private_1);
1816 return;
1817 }
1818
1819 static void manage_gss_spnego_client_request(enum stdio_helper_mode stdio_helper_mode,
1820 struct loadparm_context *lp_ctx,
1821 struct ntlm_auth_state *state,
1822 char *buf, int length, void **private2)
1823 {
1824 manage_gensec_request(stdio_helper_mode, lp_ctx, buf, length, &state->gensec_private_1);
1825 return;
1826 }
1827
1828 static void manage_ntlm_server_1_request(enum stdio_helper_mode stdio_helper_mode,
1829 struct loadparm_context *lp_ctx,
1830 struct ntlm_auth_state *state,
1831 char *buf, int length, void **private2)
1832 {
1833 char *request, *parameter;
1834 static DATA_BLOB challenge;
1835 static DATA_BLOB lm_response;
1836 static DATA_BLOB nt_response;
1837 static char *full_username;
1838 static char *username;
1839 static char *domain;
1840 static char *plaintext_password;
1841 static bool ntlm_server_1_user_session_key;
1842 static bool ntlm_server_1_lm_session_key;
1843
1844 if (strequal(buf, ".")) {
1845 if (!full_username && !username) {
1846 printf("Error: No username supplied!\n");
1847 } else if (plaintext_password) {
1848 /* handle this request as plaintext */
1849 if (!full_username) {
1850 if (asprintf(&full_username, "%s%c%s", domain, winbind_separator(), username) == -1) {
1851 printf("Error: Out of memory in "
1852 "asprintf!\n.\n");
1853 return;
1854 }
1855 }
1856 if (check_plaintext_auth(full_username, plaintext_password, False)) {
1857 printf("Authenticated: Yes\n");
1858 } else {
1859 printf("Authenticated: No\n");
1860 }
1861 } else if (!lm_response.data && !nt_response.data) {
1862 printf("Error: No password supplied!\n");
1863 } else if (!challenge.data) {
1864 printf("Error: No lanman-challenge supplied!\n");
1865 } else {
1866 char *error_string = NULL;
1867 uchar lm_key[8];
1868 uchar user_session_key[16];
1869 uint32_t flags = 0;
1870 NTSTATUS nt_status;
1871 if (full_username && !username) {
1872 fstring fstr_user;
1873 fstring fstr_domain;
1874
1875 if (!parse_ntlm_auth_domain_user(full_username, fstr_user, fstr_domain)) {
1876 /* username might be 'tainted', don't print into our new-line deleimianted stream */
1877 printf("Error: Could not parse into "
1878 "domain and username\n");
1879 }
1880 SAFE_FREE(username);
1881 SAFE_FREE(domain);
1882 username = smb_xstrdup(fstr_user);
1883 domain = smb_xstrdup(fstr_domain);
1884 }
1885
1886 if (opt_password) {
1887 DATA_BLOB nt_session_key, lm_session_key;
1888 struct samr_Password lm_pw, nt_pw;
1889 TALLOC_CTX *mem_ctx = talloc_new(NULL);
1890 ZERO_STRUCT(user_session_key);
1891 ZERO_STRUCT(lm_key);
1892
1893 nt_lm_owf_gen (opt_password, nt_pw.hash, lm_pw.hash);
1894 nt_status = ntlm_password_check(mem_ctx,
1895 true,
1896 NTLM_AUTH_ON,
1897 0,
1898 &challenge,
1899 &lm_response,
1900 &nt_response,
1901 username,
1902 username,
1903 domain,
1904 &lm_pw, &nt_pw,
1905 &nt_session_key,
1906 &lm_session_key);
1907 error_string = smb_xstrdup(get_friendly_nt_error_msg(nt_status));
1908 if (ntlm_server_1_user_session_key) {
1909 if (nt_session_key.length == sizeof(user_session_key)) {
1910 memcpy(user_session_key,
1911 nt_session_key.data,
1912 sizeof(user_session_key));
1913 }
1914 }
1915 if (ntlm_server_1_lm_session_key) {
1916 if (lm_session_key.length == sizeof(lm_key)) {
1917 memcpy(lm_key,
1918 lm_session_key.data,
1919 sizeof(lm_key));
1920 }
1921 }
1922 TALLOC_FREE(mem_ctx);
1923
1924 } else {
1925 uint8_t authoritative = 1;
1926
1927 if (!domain) {
1928 domain = smb_xstrdup(get_winbind_domain());
1929 }
1930
1931 if (ntlm_server_1_lm_session_key)
1932 flags |= WBFLAG_PAM_LMKEY;
1933
1934 if (ntlm_server_1_user_session_key)
1935 flags |= WBFLAG_PAM_USER_SESSION_KEY;
1936
1937 nt_status = contact_winbind_auth_crap(username,
1938 domain,
1939 lp_netbios_name(),
1940 &challenge,
1941 &lm_response,
1942 &nt_response,
1943 flags, 0,
1944 lm_key,
1945 user_session_key,
1946 &authoritative,
1947 &error_string,
1948 NULL);
1949 }
1950
1951 if (!NT_STATUS_IS_OK(nt_status)) {
1952 printf("Authenticated: No\n");
1953 printf("Authentication-Error: %s\n.\n",
1954 error_string);
1955 } else {
1956 char *hex_lm_key;
1957 char *hex_user_session_key;
1958
1959 printf("Authenticated: Yes\n");
1960
1961 if (ntlm_server_1_lm_session_key
1962 && (!all_zero(lm_key,
1963 sizeof(lm_key)))) {
1964 hex_lm_key = hex_encode_talloc(NULL,
1965 (const unsigned char *)lm_key,
1966 sizeof(lm_key));
1967 printf("LANMAN-Session-Key: %s\n",
1968 hex_lm_key);
1969 TALLOC_FREE(hex_lm_key);
1970 }
1971
1972 if (ntlm_server_1_user_session_key
1973 && (!all_zero(user_session_key,
1974 sizeof(user_session_key)))) {
1975 hex_user_session_key = hex_encode_talloc(NULL,
1976 (const unsigned char *)user_session_key,
1977 sizeof(user_session_key));
1978 printf("User-Session-Key: %s\n",
1979 hex_user_session_key);
1980 TALLOC_FREE(hex_user_session_key);
1981 }
1982 }
1983 SAFE_FREE(error_string);
1984 }
1985 /* clear out the state */
1986 challenge = data_blob_null;
1987 nt_response = data_blob_null;
1988 lm_response = data_blob_null;
1989 SAFE_FREE(full_username);
1990 SAFE_FREE(username);
1991 SAFE_FREE(domain);
1992 SAFE_FREE(plaintext_password);
1993 ntlm_server_1_user_session_key = False;
1994 ntlm_server_1_lm_session_key = False;
1995 printf(".\n");
1996
1997 return;
1998 }
1999
2000 request = buf;
2001
2002 /* Indicates a base64 encoded structure */
2003 parameter = strstr_m(request, ":: ");
2004 if (!parameter) {
2005 parameter = strstr_m(request, ": ");
2006
2007 if (!parameter) {
2008 DEBUG(0, ("Parameter not found!\n"));
2009 printf("Error: Parameter not found!\n.\n");
2010 return;
2011 }
2012
2013 parameter[0] ='\0';
2014 parameter++;
2015 parameter[0] ='\0';
2016 parameter++;
2017
2018 } else {
2019 parameter[0] ='\0';
2020 parameter++;
2021 parameter[0] ='\0';
2022 parameter++;
2023 parameter[0] ='\0';
2024 parameter++;
2025
2026 base64_decode_inplace(parameter);
2027 }
2028
2029 if (strequal(request, "LANMAN-Challenge")) {
2030 challenge = strhex_to_data_blob(NULL, parameter);
2031 if (challenge.length != 8) {
2032 printf("Error: hex decode of %s failed! "
2033 "(got %d bytes, expected 8)\n.\n",
2034 parameter,
2035 (int)challenge.length);
2036 challenge = data_blob_null;
2037 }
2038 } else if (strequal(request, "NT-Response")) {
2039 nt_response = strhex_to_data_blob(NULL, parameter);
2040 if (nt_response.length < 24) {
2041 printf("Error: hex decode of %s failed! "
2042 "(only got %d bytes, needed at least 24)\n.\n",
2043 parameter,
2044 (int)nt_response.length);
2045 nt_response = data_blob_null;
2046 }
2047 } else if (strequal(request, "LANMAN-Response")) {
2048 lm_response = strhex_to_data_blob(NULL, parameter);
2049 if (lm_response.length != 24) {
2050 printf("Error: hex decode of %s failed! "
2051 "(got %d bytes, expected 24)\n.\n",
2052 parameter,
2053 (int)lm_response.length);
2054 lm_response = data_blob_null;
2055 }
2056 } else if (strequal(request, "Password")) {
2057 plaintext_password = smb_xstrdup(parameter);
2058 } else if (strequal(request, "NT-Domain")) {
2059 domain = smb_xstrdup(parameter);
2060 } else if (strequal(request, "Username")) {
2061 username = smb_xstrdup(parameter);
2062 } else if (strequal(request, "Full-Username")) {
2063 full_username = smb_xstrdup(parameter);
2064 } else if (strequal(request, "Request-User-Session-Key")) {
2065 ntlm_server_1_user_session_key = strequal(parameter, "Yes");
2066 } else if (strequal(request, "Request-LanMan-Session-Key")) {
2067 ntlm_server_1_lm_session_key = strequal(parameter, "Yes");
2068 } else {
2069 printf("Error: Unknown request %s\n.\n", request);
2070 }
2071 }
2072
2073 static void manage_ntlm_change_password_1_request(enum stdio_helper_mode stdio_helper_mode,
2074 struct loadparm_context *lp_ctx,
2075 struct ntlm_auth_state *state,
2076 char *buf, int length, void **private2)
2077 {
2078 char *request, *parameter;
2079 static DATA_BLOB new_nt_pswd;
2080 static DATA_BLOB old_nt_hash_enc;
2081 static DATA_BLOB new_lm_pswd;
2082 static DATA_BLOB old_lm_hash_enc;
2083 static char *full_username = NULL;
2084 static char *username = NULL;
2085 static char *domain = NULL;
2086 static char *newpswd = NULL;
2087 static char *oldpswd = NULL;
2088
2089 if (strequal(buf, ".")) {
2090 if(newpswd && oldpswd) {
2091 uchar old_nt_hash[16];
2092 uchar old_lm_hash[16];
2093 uchar new_nt_hash[16];
2094 uchar new_lm_hash[16];
2095
2096 gnutls_cipher_hd_t cipher_hnd = NULL;
2097 gnutls_datum_t old_nt_key = {
2098 .data = old_nt_hash,
2099 .size = sizeof(old_nt_hash),
2100 };
2101 int rc;
2102
2103 new_nt_pswd = data_blob(NULL, 516);
2104 old_nt_hash_enc = data_blob(NULL, 16);
2105
2106 /* Calculate the MD4 hash (NT compatible) of the
2107 * password */
2108 E_md4hash(oldpswd, old_nt_hash);
2109 E_md4hash(newpswd, new_nt_hash);
2110
2111 /* E_deshash returns false for 'long'
2112 passwords (> 14 DOS chars).
2113
2114 Therefore, don't send a buffer
2115 encrypted with the truncated hash
2116 (it could allow an even easier
2117 attack on the password)
2118
2119 Likewise, obey the admin's restriction
2120 */
2121
2122 rc = gnutls_cipher_init(&cipher_hnd,
2123 GNUTLS_CIPHER_ARCFOUR_128,
2124 &old_nt_key,
2125 NULL);
2126 if (rc < 0) {
2127 DBG_ERR("gnutls_cipher_init failed: %s\n",
2128 gnutls_strerror(rc));
2129 if (rc == GNUTLS_E_UNWANTED_ALGORITHM) {
2130 DBG_ERR("Running in FIPS mode, NTLM blocked\n");
2131 }
2132 return;
2133 }
2134
2135 if (lp_client_lanman_auth() &&
2136 E_deshash(newpswd, new_lm_hash) &&
2137 E_deshash(oldpswd, old_lm_hash)) {
2138 new_lm_pswd = data_blob(NULL, 516);
2139 old_lm_hash_enc = data_blob(NULL, 16);
2140 encode_pw_buffer(new_lm_pswd.data, newpswd,
2141 STR_UNICODE);
2142
2143 rc = gnutls_cipher_encrypt(cipher_hnd,
2144 new_lm_pswd.data,
2145 516);
2146 if (rc < 0) {
2147 gnutls_cipher_deinit(cipher_hnd);
2148 return;
2149 }
2150 rc = E_old_pw_hash(new_nt_hash, old_lm_hash,
2151 old_lm_hash_enc.data);
2152 if (rc != 0) {
2153 DBG_ERR("E_old_pw_hash failed: %s\n",
2154 gnutls_strerror(rc));
2155 return;
2156 }
2157 } else {
2158 new_lm_pswd.data = NULL;
2159 new_lm_pswd.length = 0;
2160 old_lm_hash_enc.data = NULL;
2161 old_lm_hash_enc.length = 0;
2162 }
2163
2164 encode_pw_buffer(new_nt_pswd.data, newpswd,
2165 STR_UNICODE);
2166
2167 rc = gnutls_cipher_encrypt(cipher_hnd,
2168 new_nt_pswd.data,
2169 516);
2170 gnutls_cipher_deinit(cipher_hnd);
2171 if (rc < 0) {
2172 return;
2173 }
2174 rc = E_old_pw_hash(new_nt_hash, old_nt_hash,
2175 old_nt_hash_enc.data);
2176 if (rc != 0) {
2177 DBG_ERR("E_old_pw_hash failed: %s\n",
2178 gnutls_strerror(rc));
2179 return;
2180 }
2181
2182 ZERO_ARRAY(old_nt_hash);
2183 ZERO_ARRAY(old_lm_hash);
2184 ZERO_ARRAY(new_nt_hash);
2185 ZERO_ARRAY(new_lm_hash);
2186 }
2187
2188 if (!full_username && !username) {
2189 printf("Error: No username supplied!\n");
2190 } else if ((!new_nt_pswd.data || !old_nt_hash_enc.data) &&
2191 (!new_lm_pswd.data || old_lm_hash_enc.data) ) {
2192 printf("Error: No NT or LM password "
2193 "blobs supplied!\n");
2194 } else {
2195 char *error_string = NULL;
2196
2197 if (full_username && !username) {
2198 fstring fstr_user;
2199 fstring fstr_domain;
2200
2201 if (!parse_ntlm_auth_domain_user(full_username,
2202 fstr_user,
2203 fstr_domain)) {
2204 /* username might be 'tainted', don't
2205 * print into our new-line
2206 * deleimianted stream */
2207 printf("Error: Could not "
2208 "parse into domain and "
2209 "username\n");
2210 SAFE_FREE(username);
2211 username = smb_xstrdup(full_username);
2212 } else {
2213 SAFE_FREE(username);
2214 SAFE_FREE(domain);
2215 username = smb_xstrdup(fstr_user);
2216 domain = smb_xstrdup(fstr_domain);
2217 }
2218
2219 }
2220
2221 if(!NT_STATUS_IS_OK(contact_winbind_change_pswd_auth_crap(
2222 username, domain,
2223 new_nt_pswd,
2224 old_nt_hash_enc,
2225 new_lm_pswd,
2226 old_lm_hash_enc,
2227 &error_string))) {
2228 printf("Password-Change: No\n");
2229 printf("Password-Change-Error: %s\n.\n",
2230 error_string);
2231 } else {
2232 printf("Password-Change: Yes\n");
2233 }
2234
2235 SAFE_FREE(error_string);
2236 }
2237 /* clear out the state */
2238 new_nt_pswd = data_blob_null;
2239 old_nt_hash_enc = data_blob_null;
2240 new_lm_pswd = data_blob_null;
2241 old_nt_hash_enc = data_blob_null;
2242 SAFE_FREE(full_username);
2243 SAFE_FREE(username);
2244 SAFE_FREE(domain);
2245 SAFE_FREE(newpswd);
2246 SAFE_FREE(oldpswd);
2247 printf(".\n");
2248
2249 return;
2250 }
2251
2252 request = buf;
2253
2254 /* Indicates a base64 encoded structure */
2255 parameter = strstr_m(request, ":: ");
2256 if (!parameter) {
2257 parameter = strstr_m(request, ": ");
2258
2259 if (!parameter) {
2260 DEBUG(0, ("Parameter not found!\n"));
2261 printf("Error: Parameter not found!\n.\n");
2262 return;
2263 }
2264
2265 parameter[0] ='\0';
2266 parameter++;
2267 parameter[0] ='\0';
2268 parameter++;
2269 } else {
2270 parameter[0] ='\0';
2271 parameter++;
2272 parameter[0] ='\0';
2273 parameter++;
2274 parameter[0] ='\0';
2275 parameter++;
2276
2277 base64_decode_inplace(parameter);
2278 }
2279
2280 if (strequal(request, "new-nt-password-blob")) {
2281 new_nt_pswd = strhex_to_data_blob(NULL, parameter);
2282 if (new_nt_pswd.length != 516) {
2283 printf("Error: hex decode of %s failed! "
2284 "(got %d bytes, expected 516)\n.\n",
2285 parameter,
2286 (int)new_nt_pswd.length);
2287 new_nt_pswd = data_blob_null;
2288 }
2289 } else if (strequal(request, "old-nt-hash-blob")) {
2290 old_nt_hash_enc = strhex_to_data_blob(NULL, parameter);
2291 if (old_nt_hash_enc.length != 16) {
2292 printf("Error: hex decode of %s failed! "
2293 "(got %d bytes, expected 16)\n.\n",
2294 parameter,
2295 (int)old_nt_hash_enc.length);
2296 old_nt_hash_enc = data_blob_null;
2297 }
2298 } else if (strequal(request, "new-lm-password-blob")) {
2299 new_lm_pswd = strhex_to_data_blob(NULL, parameter);
2300 if (new_lm_pswd.length != 516) {
2301 printf("Error: hex decode of %s failed! "
2302 "(got %d bytes, expected 516)\n.\n",
2303 parameter,
2304 (int)new_lm_pswd.length);
2305 new_lm_pswd = data_blob_null;
2306 }
2307 }
2308 else if (strequal(request, "old-lm-hash-blob")) {
2309 old_lm_hash_enc = strhex_to_data_blob(NULL, parameter);
2310 if (old_lm_hash_enc.length != 16)
2311 {
2312 printf("Error: hex decode of %s failed! "
2313 "(got %d bytes, expected 16)\n.\n",
2314 parameter,
2315 (int)old_lm_hash_enc.length);
2316 old_lm_hash_enc = data_blob_null;
2317 }
2318 } else if (strequal(request, "nt-domain")) {
2319 domain = smb_xstrdup(parameter);
2320 } else if(strequal(request, "username")) {
2321 username = smb_xstrdup(parameter);
2322 } else if(strequal(request, "full-username")) {
2323 username = smb_xstrdup(parameter);
2324 } else if(strequal(request, "new-password")) {
2325 newpswd = smb_xstrdup(parameter);
2326 } else if (strequal(request, "old-password")) {
2327 oldpswd = smb_xstrdup(parameter);
2328 } else {
2329 printf("Error: Unknown request %s\n.\n", request);
2330 }
2331 }
2332
2333 static void manage_squid_request(enum stdio_helper_mode stdio_helper_mode,
2334 struct loadparm_context *lp_ctx,
2335 struct ntlm_auth_state *state,
2336 stdio_helper_function fn, void **private2)
2337 {
2338 char *buf;
2339 char tmp[INITIAL_BUFFER_SIZE+1];
2340 int length, buf_size = 0;
2341 char *c;
2342
2343 buf = talloc_strdup(state->mem_ctx, "");
2344 if (!buf) {
2345 DEBUG(0, ("Failed to allocate input buffer.\n"));
2346 fprintf(stderr, "ERR\n");
2347 exit(1);
2348 }
2349
2350 do {
2351
2352 /* this is not a typo - x_fgets doesn't work too well under
2353 * squid */
2354 if (fgets(tmp, sizeof(tmp)-1, stdin) == NULL) {
2355 if (ferror(stdin)) {
2356 DEBUG(1, ("fgets() failed! dying..... errno=%d "
2357 "(%s)\n", ferror(stdin),
2358 strerror(ferror(stdin))));
2359
2360 exit(1);
2361 }
2362 exit(0);
2363 }
2364
2365 buf = talloc_strdup_append_buffer(buf, tmp);
2366 buf_size += INITIAL_BUFFER_SIZE;
2367
2368 if (buf_size > MAX_BUFFER_SIZE) {
2369 DEBUG(2, ("Oversized message\n"));
2370 fprintf(stderr, "ERR\n");
2371 talloc_free(buf);
2372 return;
2373 }
2374
2375 c = strchr(buf, '\n');
2376 } while (c == NULL);
2377
2378 *c = '\0';
2379 length = c-buf;
2380
2381 DEBUG(10, ("Got '%s' from squid (length: %d).\n",buf,length));
2382
2383 if (buf[0] == '\0') {
2384 DEBUG(2, ("Invalid Request\n"));
2385 fprintf(stderr, "ERR\n");
2386 talloc_free(buf);
2387 return;
2388 }
2389
2390 fn(stdio_helper_mode, lp_ctx, state, buf, length, private2);
2391 talloc_free(buf);
2392 }
2393
2394
2395 static void squid_stream(enum stdio_helper_mode stdio_mode,
2396 struct loadparm_context *lp_ctx,
2397 stdio_helper_function fn) {
2398 TALLOC_CTX *mem_ctx;
2399 struct ntlm_auth_state *state;
2400
2401 /* initialize FDescs */
2402 setbuf(stdout, NULL);
2403 setbuf(stderr, NULL);
2404
2405 mem_ctx = talloc_init("ntlm_auth");
2406 if (!mem_ctx) {
2407 DEBUG(0, ("squid_stream: Failed to create talloc context\n"));
2408 fprintf(stderr, "ERR\n");
2409 exit(1);
2410 }
2411
2412 state = talloc_zero(mem_ctx, struct ntlm_auth_state);
2413 if (!state) {
2414 DEBUG(0, ("squid_stream: Failed to talloc ntlm_auth_state\n"));
2415 fprintf(stderr, "ERR\n");
2416 exit(1);
2417 }
2418
2419 state->mem_ctx = mem_ctx;
2420 state->helper_mode = stdio_mode;
2421
2422 while(1) {
2423 TALLOC_CTX *frame = talloc_stackframe();
2424 manage_squid_request(stdio_mode, lp_ctx, state, fn, NULL);
2425 TALLOC_FREE(frame);
2426 }
2427 }
2428
2429
2430 /* Authenticate a user with a challenge/response */
2431
2432 static bool check_auth_crap(void)
2433 {
2434 NTSTATUS nt_status;
2435 uint32_t flags = 0;
2436 char lm_key[8];
2437 char user_session_key[16];
2438 char *hex_lm_key;
2439 char *hex_user_session_key;
2440 char *error_string;
2441 uint8_t authoritative = 1;
2442
2443 setbuf(stdout, NULL);
2444
2445 if (request_lm_key)
2446 flags |= WBFLAG_PAM_LMKEY;
2447
2448 if (request_user_session_key)
2449 flags |= WBFLAG_PAM_USER_SESSION_KEY;
2450
2451 flags |= WBFLAG_PAM_NT_STATUS_SQUASH;
2452
2453 nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
2454 opt_workstation,
2455 &opt_challenge,
2456 &opt_lm_response,
2457 &opt_nt_response,
2458 flags, 0,
2459 (unsigned char *)lm_key,
2460 (unsigned char *)user_session_key,
2461 &authoritative,
2462 &error_string, NULL);
2463
2464 if (!NT_STATUS_IS_OK(nt_status)) {
2465 printf("%s (0x%x)\n", error_string,
2466 NT_STATUS_V(nt_status));
2467 SAFE_FREE(error_string);
2468 return False;
2469 }
2470
2471 if (request_lm_key
2472 && (!all_zero((uint8_t *)lm_key, sizeof(lm_key)))) {
2473 hex_lm_key = hex_encode_talloc(talloc_tos(), (const unsigned char *)lm_key,
2474 sizeof(lm_key));
2475 printf("LM_KEY: %s\n", hex_lm_key);
2476 TALLOC_FREE(hex_lm_key);
2477 }
2478 if (request_user_session_key
2479 && (!all_zero((uint8_t *)user_session_key,
2480 sizeof(user_session_key)))) {
2481 hex_user_session_key = hex_encode_talloc(talloc_tos(), (const unsigned char *)user_session_key,
2482 sizeof(user_session_key));
2483 printf("NT_KEY: %s\n", hex_user_session_key);
2484 TALLOC_FREE(hex_user_session_key);
2485 }
2486
2487 return True;
2488 }
2489
2490 /* Main program */
2491
2492 enum {
2493 OPT_USERNAME = 1000,
2494 OPT_DOMAIN,
2495 OPT_WORKSTATION,
2496 OPT_CHALLENGE,
2497 OPT_RESPONSE,
2498 OPT_LM,
2499 OPT_NT,
2500 OPT_PASSWORD,
2501 OPT_LM_KEY,
2502 OPT_USER_SESSION_KEY,
2503 OPT_DIAGNOSTICS,
2504 OPT_REQUIRE_MEMBERSHIP,
2505 OPT_USE_CACHED_CREDS,
2506 OPT_ALLOW_MSCHAPV2,
2507 OPT_PAM_WINBIND_CONF,
2508 OPT_TARGET_SERVICE,
2509 OPT_TARGET_HOSTNAME,
2510 OPT_OFFLINE_LOGON
2511 };
2512
2513 int main(int argc, const char **argv)
2514 {
2515 TALLOC_CTX *frame = talloc_stackframe();
2516 int opt;
2517 const char *helper_protocol = NULL;
2518 int diagnostics = 0;
2519
2520 const char *hex_challenge = NULL;
2521 const char *hex_lm_response = NULL;
2522 const char *hex_nt_response = NULL;
2523 struct loadparm_context *lp_ctx;
2524 poptContext pc;
2525 bool ok;
2526
2527 /* NOTE: DO NOT change this interface without considering the implications!
2528 This is an external interface, which other programs will use to interact
2529 with this helper.
2530 */
2531
2532 /* We do not use single-letter command abbreviations, because they harm future
2533 interface stability. */
2534
2535 struct poptOption long_options[] = {
2536 POPT_AUTOHELP
2537 {
2538 .longName = "helper-protocol",
2539 .shortName = 0,
2540 .argInfo = POPT_ARG_STRING,
2541 .arg = &helper_protocol,
2542 .val = OPT_DOMAIN,
2543 .descrip = "operate as a stdio-based helper",
2544 .argDescrip = "helper protocol to use"
2545 },
2546 {
2547 .longName = "username",
2548 .shortName = 0,
2549 .argInfo = POPT_ARG_STRING,
2550 .arg = &opt_username,
2551 .val = OPT_USERNAME,
2552 .descrip = "username"
2553 },
2554 {
2555 .longName = "domain",
2556 .shortName = 0,
2557 .argInfo = POPT_ARG_STRING,
2558 .arg = &opt_domain,
2559 .val = OPT_DOMAIN,
2560 .descrip = "domain name"
2561 },
2562 {
2563 .longName = "workstation",
2564 .shortName = 0,
2565 .argInfo = POPT_ARG_STRING,
2566 .arg = &opt_workstation,
2567 .val = OPT_WORKSTATION,
2568 .descrip = "workstation"
2569 },
2570 {
2571 .longName = "challenge",
2572 .shortName = 0,
2573 .argInfo = POPT_ARG_STRING,
2574 .arg = &hex_challenge,
2575 .val = OPT_CHALLENGE,
2576 .descrip = "challenge (HEX encoded)"
2577 },
2578 {
2579 .longName = "lm-response",
2580 .shortName = 0,
2581 .argInfo = POPT_ARG_STRING,
2582 .arg = &hex_lm_response,
2583 .val = OPT_LM,
2584 .descrip = "LM Response to the challenge (HEX encoded)"
2585 },
2586 {
2587 .longName = "nt-response",
2588 .shortName = 0,
2589 .argInfo = POPT_ARG_STRING,
2590 .arg = &hex_nt_response,
2591 .val = OPT_NT,
2592 .descrip = "NT or NTLMv2 Response to the challenge (HEX encoded)"
2593 },
2594 {
2595 .longName = "password",
2596 .shortName = 0,
2597 .argInfo = POPT_ARG_STRING,
2598 .arg = &opt_password,
2599 .val = OPT_PASSWORD,
2600 .descrip = "User's plaintext password"
2601 },
2602 {
2603 .longName = "request-lm-key",
2604 .shortName = 0,
2605 .argInfo = POPT_ARG_NONE,
2606 .arg = &request_lm_key,
2607 .val = OPT_LM_KEY,
2608 .descrip = "Retrieve LM session key (or, with --diagnostics, expect LM support)"
2609 },
2610 {
2611 .longName = "request-nt-key",
2612 .shortName = 0,
2613 .argInfo = POPT_ARG_NONE,
2614 .arg = &request_user_session_key,
2615 .val = OPT_USER_SESSION_KEY,
2616 .descrip = "Retrieve User (NT) session key"
2617 },
2618 {
2619 .longName = "use-cached-creds",
2620 .shortName = 0,
2621 .argInfo = POPT_ARG_NONE,
2622 .arg = &use_cached_creds,
2623 .val = OPT_USE_CACHED_CREDS,
2624 .descrip = "Use cached credentials if no password is given"
2625 },
2626 {
2627 .longName = "allow-mschapv2",
2628 .shortName = 0,
2629 .argInfo = POPT_ARG_NONE,
2630 .arg = &opt_allow_mschapv2,
2631 .val = OPT_ALLOW_MSCHAPV2,
2632 .descrip = "Explicitly allow MSCHAPv2",
2633 },
2634 {
2635 .longName = "offline-logon",
2636 .shortName = 0,
2637 .argInfo = POPT_ARG_NONE,
2638 .arg = &offline_logon,
2639 .val = OPT_OFFLINE_LOGON,
2640 .descrip = "Use cached passwords when DC is offline"
2641 },
2642 {
2643 .longName = "diagnostics",
2644 .shortName = 0,
2645 .argInfo = POPT_ARG_NONE,
2646 .arg = &diagnostics,
2647 .val = OPT_DIAGNOSTICS,
2648 .descrip = "Perform diagnostics on the authentication chain"
2649 },
2650 {
2651 .longName = "require-membership-of",
2652 .shortName = 0,
2653 .argInfo = POPT_ARG_STRING,
2654 .arg = &require_membership_of,
2655 .val = OPT_REQUIRE_MEMBERSHIP,
2656 .descrip = "Require that a user be a member of this group (either name or SID) for authentication to succeed",
2657 },
2658 {
2659 .longName = "pam-winbind-conf",
2660 .shortName = 0,
2661 .argInfo = POPT_ARG_STRING,
2662 .arg = &opt_pam_winbind_conf,
2663 .val = OPT_PAM_WINBIND_CONF,
2664 .descrip = "Require that request must set WBFLAG_PAM_CONTACT_TRUSTDOM when krb5 auth is required",
2665 },
2666 {
2667 .longName = "target-service",
2668 .shortName = 0,
2669 .argInfo = POPT_ARG_STRING,
2670 .arg = &opt_target_service,
2671 .val = OPT_TARGET_SERVICE,
2672 .descrip = "Target service (eg http)",
2673 },
2674 {
2675 .longName = "target-hostname",
2676 .shortName = 0,
2677 .argInfo = POPT_ARG_STRING,
2678 .arg = &opt_target_hostname,
2679 .val = OPT_TARGET_HOSTNAME,
2680 .descrip = "Target hostname",
2681 },
2682 POPT_COMMON_DEBUG_ONLY
2683 POPT_COMMON_CONFIG_ONLY
2684 POPT_COMMON_OPTION_ONLY
2685 POPT_COMMON_VERSION
2686 POPT_TABLEEND
2687 };
2688
2689 /* Samba client initialisation */
2690 smb_init_locale();
2691
2692 ok = samba_cmdline_init(frame,
2693 SAMBA_CMDLINE_CONFIG_CLIENT,
2694 false /* require_smbconf */);
2695 if (!ok) {
2696 DBG_ERR("Failed to init cmdline parser!\n");
2697 TALLOC_FREE(frame);
2698 exit(1);
2699 }
2700
2701 pc = samba_popt_get_context(getprogname(),
2702 argc,
2703 argv,
2704 long_options,
2705 POPT_CONTEXT_KEEP_FIRST);
2706 if (pc == NULL) {
2707 DBG_ERR("Failed to setup popt context!\n");
2708 TALLOC_FREE(frame);
2709 exit(1);
2710 }
2711
2712 while((opt = poptGetNextOpt(pc)) != -1) {
2713 switch (opt) {
2714 case OPT_CHALLENGE:
2715 opt_challenge = strhex_to_data_blob(NULL, hex_challenge);
2716 if (opt_challenge.length != 8) {
2717 fprintf(stderr, "hex decode of %s failed! "
2718 "(only got %d bytes)\n",
2719 hex_challenge,
2720 (int)opt_challenge.length);
2721 exit(1);
2722 }
2723 break;
2724 case OPT_LM:
2725 opt_lm_response = strhex_to_data_blob(NULL, hex_lm_response);
2726 if (opt_lm_response.length != 24) {
2727 fprintf(stderr, "hex decode of %s failed! "
2728 "(only got %d bytes)\n",
2729 hex_lm_response,
2730 (int)opt_lm_response.length);
2731 exit(1);
2732 }
2733 break;
2734
2735 case OPT_NT:
2736 opt_nt_response = strhex_to_data_blob(NULL, hex_nt_response);
2737 if (opt_nt_response.length < 24) {
2738 fprintf(stderr, "hex decode of %s failed! "
2739 "(only got %d bytes)\n",
2740 hex_nt_response,
2741 (int)opt_nt_response.length);
2742 exit(1);
2743 }
2744 break;
2745
2746 case OPT_REQUIRE_MEMBERSHIP:
2747 if (strncasecmp_m("S-", require_membership_of, 2) == 0) {
2748 require_membership_of_sid = require_membership_of;
2749 }
2750 break;
2751
2752 case POPT_ERROR_BADOPT:
2753 fprintf(stderr, "\nInvalid option %s: %s\n\n",
2754 poptBadOption(pc, 0), poptStrerror(opt));
2755 poptPrintUsage(pc, stderr, 0);
2756 exit(1);
2757 }
2758 }
2759
2760 if (opt_username) {
2761 char *domain = SMB_STRDUP(opt_username);
2762 char *p = strchr_m(domain, *lp_winbind_separator());
2763 if (p) {
2764 opt_username = p+1;
2765 *p = '\0';
2766 if (opt_domain && !strequal(opt_domain, domain)) {
2767 fprintf(stderr, "Domain specified in username (%s) "
2768 "doesn't match specified domain (%s)!\n\n",
2769 domain, opt_domain);
2770 poptPrintHelp(pc, stderr, 0);
2771 exit(1);
2772 }
2773 opt_domain = domain;
2774 } else {
2775 SAFE_FREE(domain);
2776 }
2777 }
2778
2779 /* Note: if opt_domain is "" then send no domain */
2780 if (opt_domain == NULL) {
2781 opt_domain = get_winbind_domain();
2782 }
2783
2784 if (opt_workstation == NULL) {
2785 opt_workstation = "";
2786 }
2787
2788 lp_ctx = loadparm_init_s3(NULL, loadparm_s3_helpers());
2789 if (lp_ctx == NULL) {
2790 fprintf(stderr, "loadparm_init_s3() failed!\n");
2791 exit(1);
2792 }
2793
2794 if (helper_protocol) {
2795 int i;
2796 for (i=0; i<NUM_HELPER_MODES; i++) {
2797 if (strcmp(helper_protocol, stdio_helper_protocols[i].name) == 0) {
2798 squid_stream(stdio_helper_protocols[i].mode, lp_ctx, stdio_helper_protocols[i].fn);
2799 exit(0);
2800 }
2801 }
2802 fprintf(stderr, "unknown helper protocol [%s]\n\n"
2803 "Valid helper protools:\n\n", helper_protocol);
2804
2805 for (i=0; i<NUM_HELPER_MODES; i++) {
2806 fprintf(stderr, "%s\n",
2807 stdio_helper_protocols[i].name);
2808 }
2809
2810 exit(1);
2811 }
2812
2813 if (!opt_username || !*opt_username) {
2814 fprintf(stderr, "username must be specified!\n\n");
2815 poptPrintHelp(pc, stderr, 0);
2816 exit(1);
2817 }
2818
2819 if (opt_challenge.length) {
2820 if (!check_auth_crap()) {
2821 exit(1);
2822 }
2823 exit(0);
2824 }
2825
2826 if (!opt_password) {
2827 char pwd[256] = {0};
2828 int rc;
2829
2830 rc = samba_getpass("Password: ", pwd, sizeof(pwd), false, false);
2831 if (rc == 0) {
2832 opt_password = SMB_STRDUP(pwd);
2833 }
2834 }
2835
2836 if (diagnostics) {
2837 if (!diagnose_ntlm_auth(request_lm_key)) {
2838 poptFreeContext(pc);
2839 return 1;
2840 }
2841 } else {
2842 fstring user;
2843
2844 fstr_sprintf(user, "%s%c%s", opt_domain, winbind_separator(), opt_username);
2845 if (!check_plaintext_auth(user, opt_password, True)) {
2846 poptFreeContext(pc);
2847 return 1;
2848 }
2849 }
2850
2851 /* Exit code */
2852 gfree_all();
2853 poptFreeContext(pc);
2854 TALLOC_FREE(frame);
2855 return 0;
2856 }
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