source: branches/samba-3.0/source/utils/ntlm_auth.c

Last change on this file was 165, checked in by Paul Smedley, 16 years ago

Add 'missing' 3.0.34 diffs
File size: 65.1 KB
Line 
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
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
15
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
20
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24*/
25
26#include "includes.h"
27#include "utils/ntlm_auth.h"
28
29#undef DBGC_CLASS
30#define DBGC_CLASS DBGC_WINBIND
31
32#define SQUID_BUFFER_SIZE 2010
33
34enum stdio_helper_mode {
35 SQUID_2_4_BASIC,
36 SQUID_2_5_BASIC,
37 SQUID_2_5_NTLMSSP,
38 NTLMSSP_CLIENT_1,
39 GSS_SPNEGO,
40 GSS_SPNEGO_CLIENT,
41 NTLM_SERVER_1,
42 NTLM_CHANGE_PASSWORD_1,
43 NUM_HELPER_MODES
44};
45
46typedef void (*stdio_helper_function)(enum stdio_helper_mode stdio_helper_mode,
47 char *buf, int length);
48
49static void manage_squid_basic_request (enum stdio_helper_mode stdio_helper_mode,
50 char *buf, int length);
51
52static void manage_squid_ntlmssp_request (enum stdio_helper_mode stdio_helper_mode,
53 char *buf, int length);
54
55static void manage_client_ntlmssp_request (enum stdio_helper_mode stdio_helper_mode,
56 char *buf, int length);
57
58static void manage_gss_spnego_request (enum stdio_helper_mode stdio_helper_mode,
59 char *buf, int length);
60
61static void manage_gss_spnego_client_request (enum stdio_helper_mode stdio_helper_mode,
62 char *buf, int length);
63
64static void manage_ntlm_server_1_request (enum stdio_helper_mode stdio_helper_mode,
65 char *buf, int length);
66
67static void manage_ntlm_change_password_1_request(enum stdio_helper_mode helper_mode, char *buf, int length);
68
69static const struct {
70 enum stdio_helper_mode mode;
71 const char *name;
72 stdio_helper_function fn;
73} stdio_helper_protocols[] = {
74 { SQUID_2_4_BASIC, "squid-2.4-basic", manage_squid_basic_request},
75 { SQUID_2_5_BASIC, "squid-2.5-basic", manage_squid_basic_request},
76 { SQUID_2_5_NTLMSSP, "squid-2.5-ntlmssp", manage_squid_ntlmssp_request},
77 { NTLMSSP_CLIENT_1, "ntlmssp-client-1", manage_client_ntlmssp_request},
78 { GSS_SPNEGO, "gss-spnego", manage_gss_spnego_request},
79 { GSS_SPNEGO_CLIENT, "gss-spnego-client", manage_gss_spnego_client_request},
80 { NTLM_SERVER_1, "ntlm-server-1", manage_ntlm_server_1_request},
81 { NTLM_CHANGE_PASSWORD_1, "ntlm-change-password-1", manage_ntlm_change_password_1_request},
82 { NUM_HELPER_MODES, NULL, NULL}
83};
84
85extern int winbindd_fd;
86
87const char *opt_username;
88const char *opt_domain;
89const char *opt_workstation;
90const char *opt_password;
91static DATA_BLOB opt_challenge;
92static DATA_BLOB opt_lm_response;
93static DATA_BLOB opt_nt_response;
94static int request_lm_key;
95static int request_user_session_key;
96static int use_cached_creds;
97
98static const char *require_membership_of;
99static const char *require_membership_of_sid;
100
101static char winbind_separator(void)
102{
103 struct winbindd_response response;
104 static BOOL got_sep;
105 static char sep;
106
107 if (got_sep)
108 return sep;
109
110 ZERO_STRUCT(response);
111
112 /* Send off request */
113
114 if (winbindd_request_response(WINBINDD_INFO, NULL, &response) !=
115 NSS_STATUS_SUCCESS) {
116 d_printf("could not obtain winbind separator!\n");
117 return *lp_winbind_separator();
118 }
119
120 sep = response.data.info.winbind_separator;
121 got_sep = True;
122
123 if (!sep) {
124 d_printf("winbind separator was NULL!\n");
125 return *lp_winbind_separator();
126 }
127
128 return sep;
129}
130
131const char *get_winbind_domain(void)
132{
133 struct winbindd_response response;
134
135 static fstring winbind_domain;
136 if (*winbind_domain) {
137 return winbind_domain;
138 }
139
140 ZERO_STRUCT(response);
141
142 /* Send off request */
143
144 if (winbindd_request_response(WINBINDD_DOMAIN_NAME, NULL, &response) !=
145 NSS_STATUS_SUCCESS) {
146 DEBUG(0, ("could not obtain winbind domain name!\n"));
147 return lp_workgroup();
148 }
149
150 fstrcpy(winbind_domain, response.data.domain_name);
151
152 return winbind_domain;
153
154}
155
156const char *get_winbind_netbios_name(void)
157{
158 struct winbindd_response response;
159
160 static fstring winbind_netbios_name;
161
162 if (*winbind_netbios_name) {
163 return winbind_netbios_name;
164 }
165
166 ZERO_STRUCT(response);
167
168 /* Send off request */
169
170 if (winbindd_request_response(WINBINDD_NETBIOS_NAME, NULL, &response) !=
171 NSS_STATUS_SUCCESS) {
172 DEBUG(0, ("could not obtain winbind netbios name!\n"));
173 return global_myname();
174 }
175
176 fstrcpy(winbind_netbios_name, response.data.netbios_name);
177
178 return winbind_netbios_name;
179
180}
181
182DATA_BLOB get_challenge(void)
183{
184 static DATA_BLOB chal;
185 if (opt_challenge.length)
186 return opt_challenge;
187
188 chal = data_blob(NULL, 8);
189
190 generate_random_buffer(chal.data, chal.length);
191 return chal;
192}
193
194/* Copy of parse_domain_user from winbindd_util.c. Parse a string of the
195 form DOMAIN/user into a domain and a user */
196
197static BOOL parse_ntlm_auth_domain_user(const char *domuser, fstring domain,
198 fstring user)
199{
200
201 char *p = strchr(domuser,winbind_separator());
202
203 if (!p) {
204 return False;
205 }
206
207 fstrcpy(user, p+1);
208 fstrcpy(domain, domuser);
209 domain[PTR_DIFF(p, domuser)] = 0;
210 strupper_m(domain);
211
212 return True;
213}
214
215static BOOL get_require_membership_sid(void) {
216 struct winbindd_request request;
217 struct winbindd_response response;
218
219 if (!require_membership_of) {
220 return True;
221 }
222
223 if (require_membership_of_sid) {
224 return True;
225 }
226
227 /* Otherwise, ask winbindd for the name->sid request */
228
229 ZERO_STRUCT(request);
230 ZERO_STRUCT(response);
231
232 if (!parse_ntlm_auth_domain_user(require_membership_of,
233 request.data.name.dom_name,
234 request.data.name.name)) {
235 DEBUG(0, ("Could not parse %s into seperate domain/name parts!\n",
236 require_membership_of));
237 return False;
238 }
239
240 if (winbindd_request_response(WINBINDD_LOOKUPNAME, &request, &response) !=
241 NSS_STATUS_SUCCESS) {
242 DEBUG(0, ("Winbindd lookupname failed to resolve %s into a SID!\n",
243 require_membership_of));
244 return False;
245 }
246
247 require_membership_of_sid = SMB_STRDUP(response.data.sid.sid);
248
249 if (require_membership_of_sid)
250 return True;
251
252 return False;
253}
254/* Authenticate a user with a plaintext password */
255
256static BOOL check_plaintext_auth(const char *user, const char *pass,
257 BOOL stdout_diagnostics)
258{
259 struct winbindd_request request;
260 struct winbindd_response response;
261 NSS_STATUS result;
262
263 if (!get_require_membership_sid()) {
264 return False;
265 }
266
267 /* Send off request */
268
269 ZERO_STRUCT(request);
270 ZERO_STRUCT(response);
271
272 fstrcpy(request.data.auth.user, user);
273 fstrcpy(request.data.auth.pass, pass);
274 if (require_membership_of_sid)
275 pstrcpy(request.data.auth.require_membership_of_sid, require_membership_of_sid);
276
277 result = winbindd_request_response(WINBINDD_PAM_AUTH, &request, &response);
278
279 /* Display response */
280
281 if (stdout_diagnostics) {
282 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
283 d_printf("Reading winbind reply failed! (0x01)\n");
284 }
285
286 d_printf("%s: %s (0x%x)\n",
287 response.data.auth.nt_status_string,
288 response.data.auth.error_string,
289 response.data.auth.nt_status);
290 } else {
291 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
292 DEBUG(1, ("Reading winbind reply failed! (0x01)\n"));
293 }
294
295 DEBUG(3, ("%s: %s (0x%x)\n",
296 response.data.auth.nt_status_string,
297 response.data.auth.error_string,
298 response.data.auth.nt_status));
299 }
300
301 return (result == NSS_STATUS_SUCCESS);
302}
303
304/* authenticate a user with an encrypted username/password */
305
306NTSTATUS contact_winbind_auth_crap(const char *username,
307 const char *domain,
308 const char *workstation,
309 const DATA_BLOB *challenge,
310 const DATA_BLOB *lm_response,
311 const DATA_BLOB *nt_response,
312 uint32 flags,
313 uint8 lm_key[8],
314 uint8 user_session_key[16],
315 char **error_string,
316 char **unix_name)
317{
318 NTSTATUS nt_status;
319 NSS_STATUS result;
320 struct winbindd_request request;
321 struct winbindd_response response;
322
323 if (!get_require_membership_sid()) {
324 return NT_STATUS_INVALID_PARAMETER;
325 }
326
327 ZERO_STRUCT(request);
328 ZERO_STRUCT(response);
329
330 request.flags = flags;
331
332 request.data.auth_crap.logon_parameters = MSV1_0_ALLOW_WORKSTATION_TRUST_ACCOUNT | MSV1_0_ALLOW_SERVER_TRUST_ACCOUNT;
333
334 if (require_membership_of_sid)
335 fstrcpy(request.data.auth_crap.require_membership_of_sid, require_membership_of_sid);
336
337 fstrcpy(request.data.auth_crap.user, username);
338 fstrcpy(request.data.auth_crap.domain, domain);
339
340 fstrcpy(request.data.auth_crap.workstation,
341 workstation);
342
343 memcpy(request.data.auth_crap.chal, challenge->data, MIN(challenge->length, 8));
344
345 if (lm_response && lm_response->length) {
346 memcpy(request.data.auth_crap.lm_resp,
347 lm_response->data,
348 MIN(lm_response->length, sizeof(request.data.auth_crap.lm_resp)));
349 request.data.auth_crap.lm_resp_len = lm_response->length;
350 }
351
352 if (nt_response && nt_response->length) {
353 if (nt_response->length > sizeof(request.data.auth_crap.nt_resp)) {
354 request.flags = request.flags | WBFLAG_BIG_NTLMV2_BLOB;
355 request.extra_len = nt_response->length;
356 request.extra_data.data = SMB_MALLOC_ARRAY(char, request.extra_len);
357 if (request.extra_data.data == NULL) {
358 return NT_STATUS_NO_MEMORY;
359 }
360 memcpy(request.extra_data.data, nt_response->data,
361 nt_response->length);
362
363 } else {
364 memcpy(request.data.auth_crap.nt_resp,
365 nt_response->data, nt_response->length);
366 }
367 request.data.auth_crap.nt_resp_len = nt_response->length;
368 }
369
370 result = winbindd_request_response(WINBINDD_PAM_AUTH_CRAP, &request, &response);
371 SAFE_FREE(request.extra_data.data);
372
373 /* Display response */
374
375 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
376 nt_status = NT_STATUS_UNSUCCESSFUL;
377 if (error_string)
378 *error_string = smb_xstrdup("Reading winbind reply failed!");
379 free_response(&response);
380 return nt_status;
381 }
382
383 nt_status = (NT_STATUS(response.data.auth.nt_status));
384 if (!NT_STATUS_IS_OK(nt_status)) {
385 if (error_string)
386 *error_string = smb_xstrdup(response.data.auth.error_string);
387 free_response(&response);
388 return nt_status;
389 }
390
391 if ((flags & WBFLAG_PAM_LMKEY) && lm_key) {
392 memcpy(lm_key, response.data.auth.first_8_lm_hash,
393 sizeof(response.data.auth.first_8_lm_hash));
394 }
395 if ((flags & WBFLAG_PAM_USER_SESSION_KEY) && user_session_key) {
396 memcpy(user_session_key, response.data.auth.user_session_key,
397 sizeof(response.data.auth.user_session_key));
398 }
399
400 if (flags & WBFLAG_PAM_UNIX_NAME) {
401 *unix_name = SMB_STRDUP((char *)response.extra_data.data);
402 if (!*unix_name) {
403 free_response(&response);
404 return NT_STATUS_NO_MEMORY;
405 }
406 }
407
408 free_response(&response);
409 return nt_status;
410}
411
412/* contact server to change user password using auth crap */
413static NTSTATUS contact_winbind_change_pswd_auth_crap(const char *username,
414 const char *domain,
415 const DATA_BLOB new_nt_pswd,
416 const DATA_BLOB old_nt_hash_enc,
417 const DATA_BLOB new_lm_pswd,
418 const DATA_BLOB old_lm_hash_enc,
419 char **error_string)
420{
421 NTSTATUS nt_status;
422 NSS_STATUS result;
423 struct winbindd_request request;
424 struct winbindd_response response;
425
426 if (!get_require_membership_sid())
427 {
428 if(error_string)
429 *error_string = smb_xstrdup("Can't get membership sid.");
430 return NT_STATUS_INVALID_PARAMETER;
431 }
432
433 ZERO_STRUCT(request);
434 ZERO_STRUCT(response);
435
436 if(username != NULL)
437 fstrcpy(request.data.chng_pswd_auth_crap.user, username);
438 if(domain != NULL)
439 fstrcpy(request.data.chng_pswd_auth_crap.domain,domain);
440
441 if(new_nt_pswd.length)
442 {
443 memcpy(request.data.chng_pswd_auth_crap.new_nt_pswd, new_nt_pswd.data, sizeof(request.data.chng_pswd_auth_crap.new_nt_pswd));
444 request.data.chng_pswd_auth_crap.new_nt_pswd_len = new_nt_pswd.length;
445 }
446
447 if(old_nt_hash_enc.length)
448 {
449 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));
450 request.data.chng_pswd_auth_crap.old_nt_hash_enc_len = old_nt_hash_enc.length;
451 }
452
453 if(new_lm_pswd.length)
454 {
455 memcpy(request.data.chng_pswd_auth_crap.new_lm_pswd, new_lm_pswd.data, sizeof(request.data.chng_pswd_auth_crap.new_lm_pswd));
456 request.data.chng_pswd_auth_crap.new_lm_pswd_len = new_lm_pswd.length;
457 }
458
459 if(old_lm_hash_enc.length)
460 {
461 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));
462 request.data.chng_pswd_auth_crap.old_lm_hash_enc_len = old_lm_hash_enc.length;
463 }
464
465 result = winbindd_request_response(WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP, &request, &response);
466
467 /* Display response */
468
469 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0))
470 {
471 nt_status = NT_STATUS_UNSUCCESSFUL;
472 if (error_string)
473 *error_string = smb_xstrdup("Reading winbind reply failed!");
474 free_response(&response);
475 return nt_status;
476 }
477
478 nt_status = (NT_STATUS(response.data.auth.nt_status));
479 if (!NT_STATUS_IS_OK(nt_status))
480 {
481 if (error_string)
482 *error_string = smb_xstrdup(response.data.auth.error_string);
483 free_response(&response);
484 return nt_status;
485 }
486
487 free_response(&response);
488
489 return nt_status;
490}
491
492static NTSTATUS winbind_pw_check(struct ntlmssp_state *ntlmssp_state, DATA_BLOB *user_session_key, DATA_BLOB *lm_session_key)
493{
494 static const char zeros[16] = { 0, };
495 NTSTATUS nt_status;
496 char *error_string;
497 uint8 lm_key[8];
498 uint8 user_sess_key[16];
499 char *unix_name;
500
501 nt_status = contact_winbind_auth_crap(ntlmssp_state->user, ntlmssp_state->domain,
502 ntlmssp_state->workstation,
503 &ntlmssp_state->chal,
504 &ntlmssp_state->lm_resp,
505 &ntlmssp_state->nt_resp,
506 WBFLAG_PAM_LMKEY | WBFLAG_PAM_USER_SESSION_KEY | WBFLAG_PAM_UNIX_NAME,
507 lm_key, user_sess_key,
508 &error_string, &unix_name);
509
510 if (NT_STATUS_IS_OK(nt_status)) {
511 if (memcmp(lm_key, zeros, 8) != 0) {
512 *lm_session_key = data_blob(NULL, 16);
513 memcpy(lm_session_key->data, lm_key, 8);
514 memset(lm_session_key->data+8, '\0', 8);
515 }
516
517 if (memcmp(user_sess_key, zeros, 16) != 0) {
518 *user_session_key = data_blob(user_sess_key, 16);
519 }
520 ntlmssp_state->auth_context = talloc_strdup(ntlmssp_state->mem_ctx, unix_name);
521 SAFE_FREE(unix_name);
522 } else {
523 DEBUG(NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED) ? 0 : 3,
524 ("Login for user [%s]\\[%s]@[%s] failed due to [%s]\n",
525 ntlmssp_state->domain, ntlmssp_state->user,
526 ntlmssp_state->workstation,
527 error_string ? error_string : "unknown error (NULL)"));
528 ntlmssp_state->auth_context = NULL;
529 }
530 return nt_status;
531}
532
533static NTSTATUS local_pw_check(struct ntlmssp_state *ntlmssp_state, DATA_BLOB *user_session_key, DATA_BLOB *lm_session_key)
534{
535 NTSTATUS nt_status;
536 uint8 lm_pw[16], nt_pw[16];
537
538 nt_lm_owf_gen (opt_password, nt_pw, lm_pw);
539
540 nt_status = ntlm_password_check(ntlmssp_state->mem_ctx,
541 &ntlmssp_state->chal,
542 &ntlmssp_state->lm_resp,
543 &ntlmssp_state->nt_resp,
544 NULL, NULL,
545 ntlmssp_state->user,
546 ntlmssp_state->user,
547 ntlmssp_state->domain,
548 lm_pw, nt_pw, user_session_key, lm_session_key);
549
550 if (NT_STATUS_IS_OK(nt_status)) {
551 ntlmssp_state->auth_context = talloc_asprintf(ntlmssp_state->mem_ctx,
552 "%s%c%s", ntlmssp_state->domain,
553 *lp_winbind_separator(),
554 ntlmssp_state->user);
555 } else {
556 DEBUG(3, ("Login for user [%s]\\[%s]@[%s] failed due to [%s]\n",
557 ntlmssp_state->domain, ntlmssp_state->user, ntlmssp_state->workstation,
558 nt_errstr(nt_status)));
559 ntlmssp_state->auth_context = NULL;
560 }
561 return nt_status;
562}
563
564static NTSTATUS ntlm_auth_start_ntlmssp_client(NTLMSSP_STATE **client_ntlmssp_state)
565{
566 NTSTATUS status;
567 if ( (opt_username == NULL) || (opt_domain == NULL) ) {
568 status = NT_STATUS_UNSUCCESSFUL;
569 DEBUG(1, ("Need username and domain for NTLMSSP\n"));
570 return NT_STATUS_INVALID_PARAMETER;
571 }
572
573 status = ntlmssp_client_start(client_ntlmssp_state);
574
575 if (!NT_STATUS_IS_OK(status)) {
576 DEBUG(1, ("Could not start NTLMSSP client: %s\n",
577 nt_errstr(status)));
578 ntlmssp_end(client_ntlmssp_state);
579 return status;
580 }
581
582 status = ntlmssp_set_username(*client_ntlmssp_state, opt_username);
583
584 if (!NT_STATUS_IS_OK(status)) {
585 DEBUG(1, ("Could not set username: %s\n",
586 nt_errstr(status)));
587 ntlmssp_end(client_ntlmssp_state);
588 return status;
589 }
590
591 status = ntlmssp_set_domain(*client_ntlmssp_state, opt_domain);
592
593 if (!NT_STATUS_IS_OK(status)) {
594 DEBUG(1, ("Could not set domain: %s\n",
595 nt_errstr(status)));
596 ntlmssp_end(client_ntlmssp_state);
597 return status;
598 }
599
600 if (opt_password) {
601 status = ntlmssp_set_password(*client_ntlmssp_state, opt_password);
602
603 if (!NT_STATUS_IS_OK(status)) {
604 DEBUG(1, ("Could not set password: %s\n",
605 nt_errstr(status)));
606 ntlmssp_end(client_ntlmssp_state);
607 return status;
608 }
609 }
610
611 return NT_STATUS_OK;
612}
613
614static NTSTATUS ntlm_auth_start_ntlmssp_server(NTLMSSP_STATE **ntlmssp_state)
615{
616 NTSTATUS status = ntlmssp_server_start(ntlmssp_state);
617
618 if (!NT_STATUS_IS_OK(status)) {
619 DEBUG(1, ("Could not start NTLMSSP server: %s\n",
620 nt_errstr(status)));
621 return status;
622 }
623
624 /* Have we been given a local password, or should we ask winbind? */
625 if (opt_password) {
626 (*ntlmssp_state)->check_password = local_pw_check;
627 (*ntlmssp_state)->get_domain = lp_workgroup;
628 (*ntlmssp_state)->get_global_myname = global_myname;
629 } else {
630 (*ntlmssp_state)->check_password = winbind_pw_check;
631 (*ntlmssp_state)->get_domain = get_winbind_domain;
632 (*ntlmssp_state)->get_global_myname = get_winbind_netbios_name;
633 }
634 return NT_STATUS_OK;
635}
636
637/*******************************************************************
638 Used by firefox to drive NTLM auth to IIS servers.
639*******************************************************************/
640
641static NTSTATUS do_ccache_ntlm_auth(DATA_BLOB initial_msg, DATA_BLOB challenge_msg,
642 DATA_BLOB *reply)
643{
644 struct winbindd_request wb_request;
645 struct winbindd_response wb_response;
646 NSS_STATUS result;
647
648 /* get winbindd to do the ntlmssp step on our behalf */
649 ZERO_STRUCT(wb_request);
650 ZERO_STRUCT(wb_response);
651
652 fstr_sprintf(wb_request.data.ccache_ntlm_auth.user,
653 "%s%c%s", opt_domain, winbind_separator(), opt_username);
654 wb_request.data.ccache_ntlm_auth.uid = geteuid();
655 wb_request.data.ccache_ntlm_auth.initial_blob_len = initial_msg.length;
656 wb_request.data.ccache_ntlm_auth.challenge_blob_len = challenge_msg.length;
657 wb_request.extra_len = initial_msg.length + challenge_msg.length;
658
659 if (wb_request.extra_len > 0) {
660 wb_request.extra_data.data = SMB_MALLOC_ARRAY(char, wb_request.extra_len);
661 if (wb_request.extra_data.data == NULL) {
662 return NT_STATUS_NO_MEMORY;
663 }
664
665 memcpy(wb_request.extra_data.data, initial_msg.data, initial_msg.length);
666 memcpy(wb_request.extra_data.data + initial_msg.length,
667 challenge_msg.data, challenge_msg.length);
668 }
669
670 result = winbindd_request_response(WINBINDD_CCACHE_NTLMAUTH, &wb_request, &wb_response);
671 SAFE_FREE(wb_request.extra_data.data);
672
673 if (result != NSS_STATUS_SUCCESS) {
674 free_response(&wb_response);
675 return NT_STATUS_UNSUCCESSFUL;
676 }
677
678 if (reply) {
679 *reply = data_blob(wb_response.extra_data.data,
680 wb_response.data.ccache_ntlm_auth.auth_blob_len);
681 if (wb_response.data.ccache_ntlm_auth.auth_blob_len > 0 &&
682 reply->data == NULL) {
683 free_response(&wb_response);
684 return NT_STATUS_NO_MEMORY;
685 }
686 }
687
688 free_response(&wb_response);
689 return NT_STATUS_MORE_PROCESSING_REQUIRED;
690}
691
692static void manage_squid_ntlmssp_request(enum stdio_helper_mode stdio_helper_mode,
693 char *buf, int length)
694{
695 static NTLMSSP_STATE *ntlmssp_state = NULL;
696 static char* want_feature_list = NULL;
697 static uint32 neg_flags = 0;
698 static BOOL have_session_key = False;
699 static DATA_BLOB session_key;
700 DATA_BLOB request, reply;
701 NTSTATUS nt_status;
702
703 if (strlen(buf) < 2) {
704 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
705 x_fprintf(x_stdout, "BH NTLMSSP query invalid\n");
706 return;
707 }
708
709 if (strlen(buf) > 3) {
710 if(strncmp(buf, "SF ", 3) == 0){
711 DEBUG(10, ("Setting flags to negotioate\n"));
712 SAFE_FREE(want_feature_list);
713 want_feature_list = SMB_STRNDUP(buf+3, strlen(buf)-3);
714 x_fprintf(x_stdout, "OK\n");
715 return;
716 }
717 request = base64_decode_data_blob(buf + 3);
718 } else {
719 request = data_blob(NULL, 0);
720 }
721
722 if ((strncmp(buf, "PW ", 3) == 0)) {
723 /* The calling application wants us to use a local password (rather than winbindd) */
724
725 opt_password = SMB_STRNDUP((const char *)request.data, request.length);
726
727 if (opt_password == NULL) {
728 DEBUG(1, ("Out of memory\n"));
729 x_fprintf(x_stdout, "BH Out of memory\n");
730 data_blob_free(&request);
731 return;
732 }
733
734 x_fprintf(x_stdout, "OK\n");
735 data_blob_free(&request);
736 return;
737 }
738
739 if (strncmp(buf, "YR", 2) == 0) {
740 if (ntlmssp_state)
741 ntlmssp_end(&ntlmssp_state);
742 } else if (strncmp(buf, "KK", 2) == 0) {
743
744 } else if (strncmp(buf, "GF", 2) == 0) {
745 DEBUG(10, ("Requested negotiated NTLMSSP flags\n"));
746 x_fprintf(x_stdout, "GF 0x%08lx\n", have_session_key?neg_flags:0l);
747 data_blob_free(&request);
748 return;
749 } else if (strncmp(buf, "GK", 2) == 0) {
750 DEBUG(10, ("Requested NTLMSSP session key\n"));
751 if(have_session_key) {
752 char *key64 = base64_encode_data_blob(session_key);
753 x_fprintf(x_stdout, "GK %s\n", key64?key64:"<NULL>");
754 SAFE_FREE(key64);
755 } else {
756 x_fprintf(x_stdout, "BH No session key available\n");
757 }
758
759 data_blob_free(&request);
760 return;
761 } else {
762 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
763 x_fprintf(x_stdout, "BH NTLMSSP query invalid\n");
764 return;
765 }
766
767 if (!ntlmssp_state) {
768 if (!NT_STATUS_IS_OK(nt_status = ntlm_auth_start_ntlmssp_server(&ntlmssp_state))) {
769 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
770 return;
771 }
772 ntlmssp_want_feature_list(ntlmssp_state, want_feature_list);
773 }
774
775 DEBUG(10, ("got NTLMSSP packet:\n"));
776 dump_data(10, (const char *)request.data, request.length);
777
778 nt_status = ntlmssp_update(ntlmssp_state, request, &reply);
779
780 if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
781 char *reply_base64 = base64_encode_data_blob(reply);
782 x_fprintf(x_stdout, "TT %s\n", reply_base64);
783 SAFE_FREE(reply_base64);
784 data_blob_free(&reply);
785 DEBUG(10, ("NTLMSSP challenge\n"));
786 } else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED)) {
787 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
788 DEBUG(0, ("NTLMSSP BH: %s\n", nt_errstr(nt_status)));
789
790 ntlmssp_end(&ntlmssp_state);
791 } else if (!NT_STATUS_IS_OK(nt_status)) {
792 x_fprintf(x_stdout, "NA %s\n", nt_errstr(nt_status));
793 DEBUG(10, ("NTLMSSP %s\n", nt_errstr(nt_status)));
794 } else {
795 x_fprintf(x_stdout, "AF %s\n", (char *)ntlmssp_state->auth_context);
796 DEBUG(10, ("NTLMSSP OK!\n"));
797
798 if(have_session_key)
799 data_blob_free(&session_key);
800 session_key = data_blob(ntlmssp_state->session_key.data,
801 ntlmssp_state->session_key.length);
802 neg_flags = ntlmssp_state->neg_flags;
803 have_session_key = True;
804 }
805
806 data_blob_free(&request);
807}
808
809static void manage_client_ntlmssp_request(enum stdio_helper_mode stdio_helper_mode,
810 char *buf, int length)
811{
812 /* The statics here are *HORRIBLE* and this entire concept
813 needs to be rewritten. Essentially it's using these statics
814 as the state in a state machine. BLEEEGH ! JRA. */
815
816 static NTLMSSP_STATE *ntlmssp_state = NULL;
817 static DATA_BLOB initial_message;
818 static char* want_feature_list = NULL;
819 static uint32 neg_flags = 0;
820 static BOOL have_session_key = False;
821 static DATA_BLOB session_key;
822 DATA_BLOB request, reply;
823 NTSTATUS nt_status;
824 BOOL first = False;
825
826 if (!opt_username || !*opt_username) {
827 x_fprintf(x_stderr, "username must be specified!\n\n");
828 exit(1);
829 }
830
831 if (strlen(buf) < 2) {
832 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
833 x_fprintf(x_stdout, "BH NTLMSSP query invalid\n");
834 return;
835 }
836
837 if (strlen(buf) > 3) {
838 if(strncmp(buf, "SF ", 3) == 0) {
839 DEBUG(10, ("Looking for flags to negotiate\n"));
840 SAFE_FREE(want_feature_list);
841 want_feature_list = SMB_STRNDUP(buf+3, strlen(buf)-3);
842 x_fprintf(x_stdout, "OK\n");
843 return;
844 }
845 request = base64_decode_data_blob(buf + 3);
846 } else {
847 request = data_blob(NULL, 0);
848 }
849
850 if (strncmp(buf, "PW ", 3) == 0) {
851 /* We asked for a password and obviously got it :-) */
852
853 opt_password = SMB_STRNDUP((const char *)request.data, request.length);
854
855 if (opt_password == NULL) {
856 DEBUG(1, ("Out of memory\n"));
857 x_fprintf(x_stdout, "BH Out of memory\n");
858 data_blob_free(&request);
859 return;
860 }
861
862 x_fprintf(x_stdout, "OK\n");
863 data_blob_free(&request);
864 return;
865 }
866
867 if (!ntlmssp_state && use_cached_creds) {
868 /* check whether credentials are usable. */
869 DATA_BLOB empty_blob = data_blob(NULL, 0);
870
871 nt_status = do_ccache_ntlm_auth(empty_blob, empty_blob, NULL);
872 if (!NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
873 /* failed to use cached creds */
874 use_cached_creds = False;
875 }
876 }
877
878 if (opt_password == NULL && !use_cached_creds) {
879
880 /* Request a password from the calling process. After
881 sending it, the calling process should retry asking for the negotiate. */
882
883 DEBUG(10, ("Requesting password\n"));
884 x_fprintf(x_stdout, "PW\n");
885 return;
886 }
887
888 if (strncmp(buf, "YR", 2) == 0) {
889 if (ntlmssp_state)
890 ntlmssp_end(&ntlmssp_state);
891 } else if (strncmp(buf, "TT", 2) == 0) {
892
893 } else if (strncmp(buf, "GF", 2) == 0) {
894 DEBUG(10, ("Requested negotiated NTLMSSP flags\n"));
895 x_fprintf(x_stdout, "GF 0x%08lx\n", have_session_key?neg_flags:0l);
896 data_blob_free(&request);
897 return;
898 } else if (strncmp(buf, "GK", 2) == 0 ) {
899 DEBUG(10, ("Requested session key\n"));
900
901 if(have_session_key) {
902 char *key64 = base64_encode_data_blob(session_key);
903 x_fprintf(x_stdout, "GK %s\n", key64?key64:"<NULL>");
904 SAFE_FREE(key64);
905 }
906 else {
907 x_fprintf(x_stdout, "BH No session key available\n");
908 }
909
910 data_blob_free(&request);
911 return;
912 } else {
913 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
914 x_fprintf(x_stdout, "BH NTLMSSP query invalid\n");
915 return;
916 }
917
918 if (!ntlmssp_state) {
919 if (!NT_STATUS_IS_OK(nt_status = ntlm_auth_start_ntlmssp_client(&ntlmssp_state))) {
920 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
921 return;
922 }
923 ntlmssp_want_feature_list(ntlmssp_state, want_feature_list);
924 first = True;
925 initial_message = data_blob(NULL, 0);
926 }
927
928 DEBUG(10, ("got NTLMSSP packet:\n"));
929 dump_data(10, (const char *)request.data, request.length);
930
931 if (use_cached_creds && !opt_password && !first) {
932 nt_status = do_ccache_ntlm_auth(initial_message, request, &reply);
933 } else {
934 nt_status = ntlmssp_update(ntlmssp_state, request, &reply);
935 }
936
937 if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
938 char *reply_base64 = base64_encode_data_blob(reply);
939 if (first) {
940 x_fprintf(x_stdout, "YR %s\n", reply_base64);
941 } else {
942 x_fprintf(x_stdout, "KK %s\n", reply_base64);
943 }
944 SAFE_FREE(reply_base64);
945 if (first) {
946 initial_message = reply;
947 } else {
948 data_blob_free(&reply);
949 }
950 DEBUG(10, ("NTLMSSP challenge\n"));
951 } else if (NT_STATUS_IS_OK(nt_status)) {
952 char *reply_base64 = base64_encode_data_blob(reply);
953 x_fprintf(x_stdout, "AF %s\n", reply_base64);
954 SAFE_FREE(reply_base64);
955
956 if(have_session_key)
957 data_blob_free(&session_key);
958
959 session_key = data_blob(ntlmssp_state->session_key.data,
960 ntlmssp_state->session_key.length);
961 neg_flags = ntlmssp_state->neg_flags;
962 have_session_key = True;
963
964 DEBUG(10, ("NTLMSSP OK!\n"));
965 if (ntlmssp_state)
966 ntlmssp_end(&ntlmssp_state);
967 } else {
968 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
969 DEBUG(0, ("NTLMSSP BH: %s\n", nt_errstr(nt_status)));
970 if (ntlmssp_state)
971 ntlmssp_end(&ntlmssp_state);
972 }
973
974 data_blob_free(&request);
975}
976
977static void manage_squid_basic_request(enum stdio_helper_mode stdio_helper_mode,
978 char *buf, int length)
979{
980 char *user, *pass;
981 user=buf;
982
983 pass=(char *)memchr(buf,' ',length);
984 if (!pass) {
985 DEBUG(2, ("Password not found. Denying access\n"));
986 x_fprintf(x_stdout, "ERR\n");
987 return;
988 }
989 *pass='\0';
990 pass++;
991
992 if (stdio_helper_mode == SQUID_2_5_BASIC) {
993 rfc1738_unescape(user);
994 rfc1738_unescape(pass);
995 }
996
997 if (check_plaintext_auth(user, pass, False)) {
998 x_fprintf(x_stdout, "OK\n");
999 } else {
1000 x_fprintf(x_stdout, "ERR\n");
1001 }
1002}
1003
1004static void offer_gss_spnego_mechs(void) {
1005
1006 DATA_BLOB token;
1007 SPNEGO_DATA spnego;
1008 ssize_t len;
1009 char *reply_base64;
1010
1011 pstring principal;
1012 pstring myname_lower;
1013
1014 ZERO_STRUCT(spnego);
1015
1016 pstrcpy(myname_lower, global_myname());
1017 strlower_m(myname_lower);
1018
1019 pstr_sprintf(principal, "%s$@%s", myname_lower, lp_realm());
1020
1021 /* Server negTokenInit (mech offerings) */
1022 spnego.type = SPNEGO_NEG_TOKEN_INIT;
1023 spnego.negTokenInit.mechTypes = SMB_XMALLOC_ARRAY(const char *, 2);
1024#ifdef HAVE_KRB5
1025 spnego.negTokenInit.mechTypes[0] = smb_xstrdup(OID_KERBEROS5_OLD);
1026 spnego.negTokenInit.mechTypes[1] = smb_xstrdup(OID_NTLMSSP);
1027 spnego.negTokenInit.mechTypes[2] = NULL;
1028#else
1029 spnego.negTokenInit.mechTypes[0] = smb_xstrdup(OID_NTLMSSP);
1030 spnego.negTokenInit.mechTypes[1] = NULL;
1031#endif
1032
1033
1034 spnego.negTokenInit.mechListMIC = data_blob(principal,
1035 strlen(principal));
1036
1037 len = write_spnego_data(&token, &spnego);
1038 free_spnego_data(&spnego);
1039
1040 if (len == -1) {
1041 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1042 x_fprintf(x_stdout, "BH Could not write SPNEGO data blob\n");
1043 return;
1044 }
1045
1046 reply_base64 = base64_encode_data_blob(token);
1047 x_fprintf(x_stdout, "TT %s *\n", reply_base64);
1048
1049 SAFE_FREE(reply_base64);
1050 data_blob_free(&token);
1051 DEBUG(10, ("sent SPNEGO negTokenInit\n"));
1052 return;
1053}
1054
1055static void manage_gss_spnego_request(enum stdio_helper_mode stdio_helper_mode,
1056 char *buf, int length)
1057{
1058 static NTLMSSP_STATE *ntlmssp_state = NULL;
1059 SPNEGO_DATA request, response;
1060 DATA_BLOB token;
1061 NTSTATUS status;
1062 ssize_t len;
1063
1064 char *user = NULL;
1065 char *domain = NULL;
1066
1067 const char *reply_code;
1068 char *reply_base64;
1069 pstring reply_argument;
1070
1071 if (strlen(buf) < 2) {
1072 DEBUG(1, ("SPENGO query [%s] invalid", buf));
1073 x_fprintf(x_stdout, "BH SPENGO query invalid\n");
1074 return;
1075 }
1076
1077 if (strncmp(buf, "YR", 2) == 0) {
1078 if (ntlmssp_state)
1079 ntlmssp_end(&ntlmssp_state);
1080 } else if (strncmp(buf, "KK", 2) == 0) {
1081
1082 } else {
1083 DEBUG(1, ("SPENGO query [%s] invalid", buf));
1084 x_fprintf(x_stdout, "BH SPENGO query invalid\n");
1085 return;
1086 }
1087
1088 if ( (strlen(buf) == 2)) {
1089
1090 /* no client data, get the negTokenInit offering
1091 mechanisms */
1092
1093 offer_gss_spnego_mechs();
1094 return;
1095 }
1096
1097 /* All subsequent requests have a blob. This might be negTokenInit or negTokenTarg */
1098
1099 if (strlen(buf) <= 3) {
1100 DEBUG(1, ("GSS-SPNEGO query [%s] invalid\n", buf));
1101 x_fprintf(x_stdout, "BH GSS-SPNEGO query invalid\n");
1102 return;
1103 }
1104
1105 token = base64_decode_data_blob(buf + 3);
1106 len = read_spnego_data(token, &request);
1107 data_blob_free(&token);
1108
1109 if (len == -1) {
1110 DEBUG(1, ("GSS-SPNEGO query [%s] invalid", buf));
1111 x_fprintf(x_stdout, "BH GSS-SPNEGO query invalid\n");
1112 return;
1113 }
1114
1115 if (request.type == SPNEGO_NEG_TOKEN_INIT) {
1116
1117 /* Second request from Client. This is where the
1118 client offers its mechanism to use. */
1119
1120 if ( (request.negTokenInit.mechTypes == NULL) ||
1121 (request.negTokenInit.mechTypes[0] == NULL) ) {
1122 DEBUG(1, ("Client did not offer any mechanism"));
1123 x_fprintf(x_stdout, "BH Client did not offer any mechanism\n");
1124 return;
1125 }
1126
1127 status = NT_STATUS_UNSUCCESSFUL;
1128 if (strcmp(request.negTokenInit.mechTypes[0], OID_NTLMSSP) == 0) {
1129
1130 if ( request.negTokenInit.mechToken.data == NULL ) {
1131 DEBUG(1, ("Client did not provide NTLMSSP data\n"));
1132 x_fprintf(x_stdout, "BH Client did not provide NTLMSSP data\n");
1133 return;
1134 }
1135
1136 if ( ntlmssp_state != NULL ) {
1137 DEBUG(1, ("Client wants a new NTLMSSP challenge, but "
1138 "already got one\n"));
1139 x_fprintf(x_stdout, "BH Client wants a new NTLMSSP challenge, but already got one\n");
1140 ntlmssp_end(&ntlmssp_state);
1141 return;
1142 }
1143
1144 if (!NT_STATUS_IS_OK(status = ntlm_auth_start_ntlmssp_server(&ntlmssp_state))) {
1145 x_fprintf(x_stdout, "BH %s\n", nt_errstr(status));
1146 return;
1147 }
1148
1149 DEBUG(10, ("got NTLMSSP packet:\n"));
1150 dump_data(10, (const char *)request.negTokenInit.mechToken.data,
1151 request.negTokenInit.mechToken.length);
1152
1153 response.type = SPNEGO_NEG_TOKEN_TARG;
1154 response.negTokenTarg.supportedMech = SMB_STRDUP(OID_NTLMSSP);
1155 response.negTokenTarg.mechListMIC = data_blob(NULL, 0);
1156
1157 status = ntlmssp_update(ntlmssp_state,
1158 request.negTokenInit.mechToken,
1159 &response.negTokenTarg.responseToken);
1160 }
1161
1162#ifdef HAVE_KRB5
1163 if (strcmp(request.negTokenInit.mechTypes[0], OID_KERBEROS5_OLD) == 0) {
1164
1165 TALLOC_CTX *mem_ctx = talloc_init("manage_gss_spnego_request");
1166 char *principal;
1167 DATA_BLOB ap_rep;
1168 DATA_BLOB session_key;
1169
1170 if ( request.negTokenInit.mechToken.data == NULL ) {
1171 DEBUG(1, ("Client did not provide Kerberos data\n"));
1172 x_fprintf(x_stdout, "BH Client did not provide Kerberos data\n");
1173 return;
1174 }
1175
1176 response.type = SPNEGO_NEG_TOKEN_TARG;
1177 response.negTokenTarg.supportedMech = SMB_STRDUP(OID_KERBEROS5_OLD);
1178 response.negTokenTarg.mechListMIC = data_blob(NULL, 0);
1179 response.negTokenTarg.responseToken = data_blob(NULL, 0);
1180
1181 status = ads_verify_ticket(mem_ctx, lp_realm(), 0,
1182 &request.negTokenInit.mechToken,
1183 &principal, NULL, &ap_rep,
1184 &session_key);
1185
1186 talloc_destroy(mem_ctx);
1187
1188 /* Now in "principal" we have the name we are
1189 authenticated as. */
1190
1191 if (NT_STATUS_IS_OK(status)) {
1192
1193 domain = strchr_m(principal, '@');
1194
1195 if (domain == NULL) {
1196 DEBUG(1, ("Did not get a valid principal "
1197 "from ads_verify_ticket\n"));
1198 x_fprintf(x_stdout, "BH Did not get a valid principal from ads_verify_ticket\n");
1199 return;
1200 }
1201
1202 *domain++ = '\0';
1203 domain = SMB_STRDUP(domain);
1204 user = SMB_STRDUP(principal);
1205
1206 data_blob_free(&ap_rep);
1207
1208 SAFE_FREE(principal);
1209 }
1210 }
1211#endif
1212
1213 } else {
1214
1215 if ( (request.negTokenTarg.supportedMech == NULL) ||
1216 ( strcmp(request.negTokenTarg.supportedMech, OID_NTLMSSP) != 0 ) ) {
1217 /* Kerberos should never send a negTokenTarg, OID_NTLMSSP
1218 is the only one we support that sends this stuff */
1219 DEBUG(1, ("Got a negTokenTarg for something non-NTLMSSP: %s\n",
1220 request.negTokenTarg.supportedMech));
1221 x_fprintf(x_stdout, "BH Got a negTokenTarg for something non-NTLMSSP\n");
1222 return;
1223 }
1224
1225 if (request.negTokenTarg.responseToken.data == NULL) {
1226 DEBUG(1, ("Got a negTokenTarg without a responseToken!\n"));
1227 x_fprintf(x_stdout, "BH Got a negTokenTarg without a responseToken!\n");
1228 return;
1229 }
1230
1231 status = ntlmssp_update(ntlmssp_state,
1232 request.negTokenTarg.responseToken,
1233 &response.negTokenTarg.responseToken);
1234
1235 response.type = SPNEGO_NEG_TOKEN_TARG;
1236 response.negTokenTarg.supportedMech = SMB_STRDUP(OID_NTLMSSP);
1237 response.negTokenTarg.mechListMIC = data_blob(NULL, 0);
1238
1239 if (NT_STATUS_IS_OK(status)) {
1240 user = SMB_STRDUP(ntlmssp_state->user);
1241 domain = SMB_STRDUP(ntlmssp_state->domain);
1242 ntlmssp_end(&ntlmssp_state);
1243 }
1244 }
1245
1246 free_spnego_data(&request);
1247
1248 if (NT_STATUS_IS_OK(status)) {
1249 response.negTokenTarg.negResult = SPNEGO_ACCEPT_COMPLETED;
1250 reply_code = "AF";
1251 pstr_sprintf(reply_argument, "%s\\%s", domain, user);
1252 } else if (NT_STATUS_EQUAL(status,
1253 NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1254 response.negTokenTarg.negResult = SPNEGO_ACCEPT_INCOMPLETE;
1255 reply_code = "TT";
1256 pstr_sprintf(reply_argument, "*");
1257 } else {
1258 response.negTokenTarg.negResult = SPNEGO_REJECT;
1259 reply_code = "NA";
1260 pstrcpy(reply_argument, nt_errstr(status));
1261 }
1262
1263 SAFE_FREE(user);
1264 SAFE_FREE(domain);
1265
1266 len = write_spnego_data(&token, &response);
1267 free_spnego_data(&response);
1268
1269 if (len == -1) {
1270 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1271 x_fprintf(x_stdout, "BH Could not write SPNEGO data blob\n");
1272 return;
1273 }
1274
1275 reply_base64 = base64_encode_data_blob(token);
1276
1277 x_fprintf(x_stdout, "%s %s %s\n",
1278 reply_code, reply_base64, reply_argument);
1279
1280 SAFE_FREE(reply_base64);
1281 data_blob_free(&token);
1282
1283 return;
1284}
1285
1286static NTLMSSP_STATE *client_ntlmssp_state = NULL;
1287
1288static BOOL manage_client_ntlmssp_init(SPNEGO_DATA spnego)
1289{
1290 NTSTATUS status;
1291 DATA_BLOB null_blob = data_blob(NULL, 0);
1292 DATA_BLOB to_server;
1293 char *to_server_base64;
1294 const char *my_mechs[] = {OID_NTLMSSP, NULL};
1295
1296 DEBUG(10, ("Got spnego negTokenInit with NTLMSSP\n"));
1297
1298 if (client_ntlmssp_state != NULL) {
1299 DEBUG(1, ("Request for initial SPNEGO request where "
1300 "we already have a state\n"));
1301 return False;
1302 }
1303
1304 if (!client_ntlmssp_state) {
1305 if (!NT_STATUS_IS_OK(status = ntlm_auth_start_ntlmssp_client(&client_ntlmssp_state))) {
1306 x_fprintf(x_stdout, "BH %s\n", nt_errstr(status));
1307 return False;
1308 }
1309 }
1310
1311
1312 if (opt_password == NULL) {
1313
1314 /* Request a password from the calling process. After
1315 sending it, the calling process should retry with
1316 the negTokenInit. */
1317
1318 DEBUG(10, ("Requesting password\n"));
1319 x_fprintf(x_stdout, "PW\n");
1320 return True;
1321 }
1322
1323 spnego.type = SPNEGO_NEG_TOKEN_INIT;
1324 spnego.negTokenInit.mechTypes = my_mechs;
1325 spnego.negTokenInit.reqFlags = 0;
1326 spnego.negTokenInit.mechListMIC = null_blob;
1327
1328 status = ntlmssp_update(client_ntlmssp_state, null_blob,
1329 &spnego.negTokenInit.mechToken);
1330
1331 if ( !(NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED) ||
1332 NT_STATUS_IS_OK(status)) ) {
1333 DEBUG(1, ("Expected OK or MORE_PROCESSING_REQUIRED, got: %s\n",
1334 nt_errstr(status)));
1335 ntlmssp_end(&client_ntlmssp_state);
1336 return False;
1337 }
1338
1339 write_spnego_data(&to_server, &spnego);
1340 data_blob_free(&spnego.negTokenInit.mechToken);
1341
1342 to_server_base64 = base64_encode_data_blob(to_server);
1343 data_blob_free(&to_server);
1344 x_fprintf(x_stdout, "KK %s\n", to_server_base64);
1345 SAFE_FREE(to_server_base64);
1346 return True;
1347}
1348
1349static void manage_client_ntlmssp_targ(SPNEGO_DATA spnego)
1350{
1351 NTSTATUS status;
1352 DATA_BLOB null_blob = data_blob(NULL, 0);
1353 DATA_BLOB request;
1354 DATA_BLOB to_server;
1355 char *to_server_base64;
1356
1357 DEBUG(10, ("Got spnego negTokenTarg with NTLMSSP\n"));
1358
1359 if (client_ntlmssp_state == NULL) {
1360 DEBUG(1, ("Got NTLMSSP tArg without a client state\n"));
1361 x_fprintf(x_stdout, "BH Got NTLMSSP tArg without a client state\n");
1362 return;
1363 }
1364
1365 if (spnego.negTokenTarg.negResult == SPNEGO_REJECT) {
1366 x_fprintf(x_stdout, "NA\n");
1367 ntlmssp_end(&client_ntlmssp_state);
1368 return;
1369 }
1370
1371 if (spnego.negTokenTarg.negResult == SPNEGO_ACCEPT_COMPLETED) {
1372 x_fprintf(x_stdout, "AF\n");
1373 ntlmssp_end(&client_ntlmssp_state);
1374 return;
1375 }
1376
1377 status = ntlmssp_update(client_ntlmssp_state,
1378 spnego.negTokenTarg.responseToken,
1379 &request);
1380
1381 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1382 DEBUG(1, ("Expected MORE_PROCESSING_REQUIRED from "
1383 "ntlmssp_client_update, got: %s\n",
1384 nt_errstr(status)));
1385 x_fprintf(x_stdout, "BH Expected MORE_PROCESSING_REQUIRED from ntlmssp_client_update\n");
1386 data_blob_free(&request);
1387 ntlmssp_end(&client_ntlmssp_state);
1388 return;
1389 }
1390
1391 spnego.type = SPNEGO_NEG_TOKEN_TARG;
1392 spnego.negTokenTarg.negResult = SPNEGO_ACCEPT_INCOMPLETE;
1393 spnego.negTokenTarg.supportedMech = (char *)OID_NTLMSSP;
1394 spnego.negTokenTarg.responseToken = request;
1395 spnego.negTokenTarg.mechListMIC = null_blob;
1396
1397 write_spnego_data(&to_server, &spnego);
1398 data_blob_free(&request);
1399
1400 to_server_base64 = base64_encode_data_blob(to_server);
1401 data_blob_free(&to_server);
1402 x_fprintf(x_stdout, "KK %s\n", to_server_base64);
1403 SAFE_FREE(to_server_base64);
1404 return;
1405}
1406
1407#ifdef HAVE_KRB5
1408
1409static BOOL manage_client_krb5_init(SPNEGO_DATA spnego)
1410{
1411 char *principal;
1412 DATA_BLOB tkt, to_server;
1413 DATA_BLOB session_key_krb5 = data_blob(NULL, 0);
1414 SPNEGO_DATA reply;
1415 char *reply_base64;
1416 int retval;
1417
1418 const char *my_mechs[] = {OID_KERBEROS5_OLD, NULL};
1419 ssize_t len;
1420
1421 if ( (spnego.negTokenInit.mechListMIC.data == NULL) ||
1422 (spnego.negTokenInit.mechListMIC.length == 0) ) {
1423 DEBUG(1, ("Did not get a principal for krb5\n"));
1424 return False;
1425 }
1426
1427 principal = (char *)SMB_MALLOC(
1428 spnego.negTokenInit.mechListMIC.length+1);
1429
1430 if (principal == NULL) {
1431 DEBUG(1, ("Could not malloc principal\n"));
1432 return False;
1433 }
1434
1435 memcpy(principal, spnego.negTokenInit.mechListMIC.data,
1436 spnego.negTokenInit.mechListMIC.length);
1437 principal[spnego.negTokenInit.mechListMIC.length] = '\0';
1438
1439 retval = cli_krb5_get_ticket(principal, 0, &tkt, &session_key_krb5, 0, NULL, NULL);
1440
1441 if (retval) {
1442
1443 pstring user;
1444
1445 /* Let's try to first get the TGT, for that we need a
1446 password. */
1447
1448 if (opt_password == NULL) {
1449 DEBUG(10, ("Requesting password\n"));
1450 x_fprintf(x_stdout, "PW\n");
1451 return True;
1452 }
1453
1454 pstr_sprintf(user, "%s@%s", opt_username, opt_domain);
1455
1456 if ((retval = kerberos_kinit_password(user, opt_password, 0, NULL))) {
1457 DEBUG(10, ("Requesting TGT failed: %s\n", error_message(retval)));
1458 return False;
1459 }
1460
1461 retval = cli_krb5_get_ticket(principal, 0, &tkt, &session_key_krb5, 0, NULL, NULL);
1462
1463 if (retval) {
1464 DEBUG(10, ("Kinit suceeded, but getting a ticket failed: %s\n", error_message(retval)));
1465 return False;
1466 }
1467 }
1468
1469 data_blob_free(&session_key_krb5);
1470
1471 ZERO_STRUCT(reply);
1472
1473 reply.type = SPNEGO_NEG_TOKEN_INIT;
1474 reply.negTokenInit.mechTypes = my_mechs;
1475 reply.negTokenInit.reqFlags = 0;
1476 reply.negTokenInit.mechToken = tkt;
1477 reply.negTokenInit.mechListMIC = data_blob(NULL, 0);
1478
1479 len = write_spnego_data(&to_server, &reply);
1480 data_blob_free(&tkt);
1481
1482 if (len == -1) {
1483 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1484 return False;
1485 }
1486
1487 reply_base64 = base64_encode_data_blob(to_server);
1488 x_fprintf(x_stdout, "KK %s *\n", reply_base64);
1489
1490 SAFE_FREE(reply_base64);
1491 data_blob_free(&to_server);
1492 DEBUG(10, ("sent GSS-SPNEGO KERBEROS5 negTokenInit\n"));
1493 return True;
1494}
1495
1496static void manage_client_krb5_targ(SPNEGO_DATA spnego)
1497{
1498 switch (spnego.negTokenTarg.negResult) {
1499 case SPNEGO_ACCEPT_INCOMPLETE:
1500 DEBUG(1, ("Got a Kerberos negTokenTarg with ACCEPT_INCOMPLETE\n"));
1501 x_fprintf(x_stdout, "BH Got a Kerberos negTokenTarg with ACCEPT_INCOMPLETE\n");
1502 break;
1503 case SPNEGO_ACCEPT_COMPLETED:
1504 DEBUG(10, ("Accept completed\n"));
1505 x_fprintf(x_stdout, "AF\n");
1506 break;
1507 case SPNEGO_REJECT:
1508 DEBUG(10, ("Rejected\n"));
1509 x_fprintf(x_stdout, "NA\n");
1510 break;
1511 default:
1512 DEBUG(1, ("Got an invalid negTokenTarg\n"));
1513 x_fprintf(x_stdout, "AF\n");
1514 }
1515}
1516
1517#endif
1518
1519static void manage_gss_spnego_client_request(enum stdio_helper_mode stdio_helper_mode,
1520 char *buf, int length)
1521{
1522 DATA_BLOB request;
1523 SPNEGO_DATA spnego;
1524 ssize_t len;
1525
1526 if (!opt_username || !*opt_username) {
1527 x_fprintf(x_stderr, "username must be specified!\n\n");
1528 exit(1);
1529 }
1530
1531 if (strlen(buf) <= 3) {
1532 DEBUG(1, ("SPNEGO query [%s] too short\n", buf));
1533 x_fprintf(x_stdout, "BH SPNEGO query too short\n");
1534 return;
1535 }
1536
1537 request = base64_decode_data_blob(buf+3);
1538
1539 if (strncmp(buf, "PW ", 3) == 0) {
1540
1541 /* We asked for a password and obviously got it :-) */
1542
1543 opt_password = SMB_STRNDUP((const char *)request.data, request.length);
1544
1545 if (opt_password == NULL) {
1546 DEBUG(1, ("Out of memory\n"));
1547 x_fprintf(x_stdout, "BH Out of memory\n");
1548 data_blob_free(&request);
1549 return;
1550 }
1551
1552 x_fprintf(x_stdout, "OK\n");
1553 data_blob_free(&request);
1554 return;
1555 }
1556
1557 if ( (strncmp(buf, "TT ", 3) != 0) &&
1558 (strncmp(buf, "AF ", 3) != 0) &&
1559 (strncmp(buf, "NA ", 3) != 0) ) {
1560 DEBUG(1, ("SPNEGO request [%s] invalid\n", buf));
1561 x_fprintf(x_stdout, "BH SPNEGO request invalid\n");
1562 data_blob_free(&request);
1563 return;
1564 }
1565
1566 /* So we got a server challenge to generate a SPNEGO
1567 client-to-server request... */
1568
1569 len = read_spnego_data(request, &spnego);
1570 data_blob_free(&request);
1571
1572 if (len == -1) {
1573 DEBUG(1, ("Could not read SPNEGO data for [%s]\n", buf));
1574 x_fprintf(x_stdout, "BH Could not read SPNEGO data\n");
1575 return;
1576 }
1577
1578 if (spnego.type == SPNEGO_NEG_TOKEN_INIT) {
1579
1580 /* The server offers a list of mechanisms */
1581
1582 const char **mechType = (const char **)spnego.negTokenInit.mechTypes;
1583
1584 while (*mechType != NULL) {
1585
1586#ifdef HAVE_KRB5
1587 if ( (strcmp(*mechType, OID_KERBEROS5_OLD) == 0) ||
1588 (strcmp(*mechType, OID_KERBEROS5) == 0) ) {
1589 if (manage_client_krb5_init(spnego))
1590 goto out;
1591 }
1592#endif
1593
1594 if (strcmp(*mechType, OID_NTLMSSP) == 0) {
1595 if (manage_client_ntlmssp_init(spnego))
1596 goto out;
1597 }
1598
1599 mechType++;
1600 }
1601
1602 DEBUG(1, ("Server offered no compatible mechanism\n"));
1603 x_fprintf(x_stdout, "BH Server offered no compatible mechanism\n");
1604 return;
1605 }
1606
1607 if (spnego.type == SPNEGO_NEG_TOKEN_TARG) {
1608
1609 if (spnego.negTokenTarg.supportedMech == NULL) {
1610 /* On accept/reject Windows does not send the
1611 mechanism anymore. Handle that here and
1612 shut down the mechanisms. */
1613
1614 switch (spnego.negTokenTarg.negResult) {
1615 case SPNEGO_ACCEPT_COMPLETED:
1616 x_fprintf(x_stdout, "AF\n");
1617 break;
1618 case SPNEGO_REJECT:
1619 x_fprintf(x_stdout, "NA\n");
1620 break;
1621 default:
1622 DEBUG(1, ("Got a negTokenTarg with no mech and an "
1623 "unknown negResult: %d\n",
1624 spnego.negTokenTarg.negResult));
1625 x_fprintf(x_stdout, "BH Got a negTokenTarg with no mech and an unknown negResult\n");
1626 }
1627
1628 ntlmssp_end(&client_ntlmssp_state);
1629 goto out;
1630 }
1631
1632 if (strcmp(spnego.negTokenTarg.supportedMech,
1633 OID_NTLMSSP) == 0) {
1634 manage_client_ntlmssp_targ(spnego);
1635 goto out;
1636 }
1637
1638#if HAVE_KRB5
1639 if (strcmp(spnego.negTokenTarg.supportedMech,
1640 OID_KERBEROS5_OLD) == 0) {
1641 manage_client_krb5_targ(spnego);
1642 goto out;
1643 }
1644#endif
1645
1646 }
1647
1648 DEBUG(1, ("Got an SPNEGO token I could not handle [%s]!\n", buf));
1649 x_fprintf(x_stdout, "BH Got an SPNEGO token I could not handle\n");
1650 return;
1651
1652 out:
1653 free_spnego_data(&spnego);
1654 return;
1655}
1656
1657static void manage_ntlm_server_1_request(enum stdio_helper_mode stdio_helper_mode,
1658 char *buf, int length)
1659{
1660 char *request, *parameter;
1661 static DATA_BLOB challenge;
1662 static DATA_BLOB lm_response;
1663 static DATA_BLOB nt_response;
1664 static char *full_username;
1665 static char *username;
1666 static char *domain;
1667 static char *plaintext_password;
1668 static BOOL ntlm_server_1_user_session_key;
1669 static BOOL ntlm_server_1_lm_session_key;
1670
1671 if (strequal(buf, ".")) {
1672 if (!full_username && !username) {
1673 x_fprintf(x_stdout, "Error: No username supplied!\n");
1674 } else if (plaintext_password) {
1675 /* handle this request as plaintext */
1676 if (!full_username) {
1677 if (asprintf(&full_username, "%s%c%s", domain, winbind_separator(), username) == -1) {
1678 x_fprintf(x_stdout, "Error: Out of memory in asprintf!\n.\n");
1679 return;
1680 }
1681 }
1682 if (check_plaintext_auth(full_username, plaintext_password, False)) {
1683 x_fprintf(x_stdout, "Authenticated: Yes\n");
1684 } else {
1685 x_fprintf(x_stdout, "Authenticated: No\n");
1686 }
1687 } else if (!lm_response.data && !nt_response.data) {
1688 x_fprintf(x_stdout, "Error: No password supplied!\n");
1689 } else if (!challenge.data) {
1690 x_fprintf(x_stdout, "Error: No lanman-challenge supplied!\n");
1691 } else {
1692 char *error_string = NULL;
1693 uchar lm_key[8];
1694 uchar user_session_key[16];
1695 uint32 flags = 0;
1696
1697 if (full_username && !username) {
1698 fstring fstr_user;
1699 fstring fstr_domain;
1700
1701 if (!parse_ntlm_auth_domain_user(full_username, fstr_user, fstr_domain)) {
1702 /* username might be 'tainted', don't print into our new-line deleimianted stream */
1703 x_fprintf(x_stdout, "Error: Could not parse into domain and username\n");
1704 }
1705 SAFE_FREE(username);
1706 SAFE_FREE(domain);
1707 username = smb_xstrdup(fstr_user);
1708 domain = smb_xstrdup(fstr_domain);
1709 }
1710
1711 if (!domain) {
1712 domain = smb_xstrdup(get_winbind_domain());
1713 }
1714
1715 if (ntlm_server_1_lm_session_key)
1716 flags |= WBFLAG_PAM_LMKEY;
1717
1718 if (ntlm_server_1_user_session_key)
1719 flags |= WBFLAG_PAM_USER_SESSION_KEY;
1720
1721 if (!NT_STATUS_IS_OK(
1722 contact_winbind_auth_crap(username,
1723 domain,
1724 global_myname(),
1725 &challenge,
1726 &lm_response,
1727 &nt_response,
1728 flags,
1729 lm_key,
1730 user_session_key,
1731 &error_string,
1732 NULL))) {
1733
1734 x_fprintf(x_stdout, "Authenticated: No\n");
1735 x_fprintf(x_stdout, "Authentication-Error: %s\n.\n", error_string);
1736 SAFE_FREE(error_string);
1737 } else {
1738 static char zeros[16];
1739 char *hex_lm_key;
1740 char *hex_user_session_key;
1741
1742 x_fprintf(x_stdout, "Authenticated: Yes\n");
1743
1744 if (ntlm_server_1_lm_session_key
1745 && (memcmp(zeros, lm_key,
1746 sizeof(lm_key)) != 0)) {
1747 hex_lm_key = hex_encode(NULL,
1748 (const unsigned char *)lm_key,
1749 sizeof(lm_key));
1750 x_fprintf(x_stdout, "LANMAN-Session-Key: %s\n", hex_lm_key);
1751 TALLOC_FREE(hex_lm_key);
1752 }
1753
1754 if (ntlm_server_1_user_session_key
1755 && (memcmp(zeros, user_session_key,
1756 sizeof(user_session_key)) != 0)) {
1757 hex_user_session_key = hex_encode(NULL,
1758 (const unsigned char *)user_session_key,
1759 sizeof(user_session_key));
1760 x_fprintf(x_stdout, "User-Session-Key: %s\n", hex_user_session_key);
1761 TALLOC_FREE(hex_user_session_key);
1762 }
1763 }
1764 }
1765 /* clear out the state */
1766 challenge = data_blob(NULL, 0);
1767 nt_response = data_blob(NULL, 0);
1768 lm_response = data_blob(NULL, 0);
1769 SAFE_FREE(full_username);
1770 SAFE_FREE(username);
1771 SAFE_FREE(domain);
1772 SAFE_FREE(plaintext_password);
1773 ntlm_server_1_user_session_key = False;
1774 ntlm_server_1_lm_session_key = False;
1775 x_fprintf(x_stdout, ".\n");
1776
1777 return;
1778 }
1779
1780 request = buf;
1781
1782 /* Indicates a base64 encoded structure */
1783 parameter = strstr_m(request, ":: ");
1784 if (!parameter) {
1785 parameter = strstr_m(request, ": ");
1786
1787 if (!parameter) {
1788 DEBUG(0, ("Parameter not found!\n"));
1789 x_fprintf(x_stdout, "Error: Parameter not found!\n.\n");
1790 return;
1791 }
1792
1793 parameter[0] ='\0';
1794 parameter++;
1795 parameter[0] ='\0';
1796 parameter++;
1797
1798 } else {
1799 parameter[0] ='\0';
1800 parameter++;
1801 parameter[0] ='\0';
1802 parameter++;
1803 parameter[0] ='\0';
1804 parameter++;
1805
1806 base64_decode_inplace(parameter);
1807 }
1808
1809 if (strequal(request, "LANMAN-Challenge")) {
1810 challenge = strhex_to_data_blob(NULL, parameter);
1811 if (challenge.length != 8) {
1812 x_fprintf(x_stdout, "Error: hex decode of %s failed! (got %d bytes, expected 8)\n.\n",
1813 parameter,
1814 (int)challenge.length);
1815 challenge = data_blob(NULL, 0);
1816 }
1817 } else if (strequal(request, "NT-Response")) {
1818 nt_response = strhex_to_data_blob(NULL, parameter);
1819 if (nt_response.length < 24) {
1820 x_fprintf(x_stdout, "Error: hex decode of %s failed! (only got %d bytes, needed at least 24)\n.\n",
1821 parameter,
1822 (int)nt_response.length);
1823 nt_response = data_blob(NULL, 0);
1824 }
1825 } else if (strequal(request, "LANMAN-Response")) {
1826 lm_response = strhex_to_data_blob(NULL, parameter);
1827 if (lm_response.length != 24) {
1828 x_fprintf(x_stdout, "Error: hex decode of %s failed! (got %d bytes, expected 24)\n.\n",
1829 parameter,
1830 (int)lm_response.length);
1831 lm_response = data_blob(NULL, 0);
1832 }
1833 } else if (strequal(request, "Password")) {
1834 plaintext_password = smb_xstrdup(parameter);
1835 } else if (strequal(request, "NT-Domain")) {
1836 domain = smb_xstrdup(parameter);
1837 } else if (strequal(request, "Username")) {
1838 username = smb_xstrdup(parameter);
1839 } else if (strequal(request, "Full-Username")) {
1840 full_username = smb_xstrdup(parameter);
1841 } else if (strequal(request, "Request-User-Session-Key")) {
1842 ntlm_server_1_user_session_key = strequal(parameter, "Yes");
1843 } else if (strequal(request, "Request-LanMan-Session-Key")) {
1844 ntlm_server_1_lm_session_key = strequal(parameter, "Yes");
1845 } else {
1846 x_fprintf(x_stdout, "Error: Unknown request %s\n.\n", request);
1847 }
1848}
1849
1850static void manage_ntlm_change_password_1_request(enum stdio_helper_mode helper_mode, char *buf, int length)
1851{
1852 char *request, *parameter;
1853 static DATA_BLOB new_nt_pswd;
1854 static DATA_BLOB old_nt_hash_enc;
1855 static DATA_BLOB new_lm_pswd;
1856 static DATA_BLOB old_lm_hash_enc;
1857 static char *full_username = NULL;
1858 static char *username = NULL;
1859 static char *domain = NULL;
1860 static char *newpswd = NULL;
1861 static char *oldpswd = NULL;
1862
1863 if (strequal(buf, ".")) {
1864 if(newpswd && oldpswd) {
1865 uchar old_nt_hash[16];
1866 uchar old_lm_hash[16];
1867 uchar new_nt_hash[16];
1868 uchar new_lm_hash[16];
1869
1870 new_nt_pswd = data_blob(NULL, 516);
1871 old_nt_hash_enc = data_blob(NULL, 16);
1872
1873 /* Calculate the MD4 hash (NT compatible) of the
1874 * password */
1875 E_md4hash(oldpswd, old_nt_hash);
1876 E_md4hash(newpswd, new_nt_hash);
1877
1878 /* E_deshash returns false for 'long'
1879 passwords (> 14 DOS chars).
1880
1881 Therefore, don't send a buffer
1882 encrypted with the truncated hash
1883 (it could allow an even easier
1884 attack on the password)
1885
1886 Likewise, obey the admin's restriction
1887 */
1888
1889 if (lp_client_lanman_auth() &&
1890 E_deshash(newpswd, new_lm_hash) &&
1891 E_deshash(oldpswd, old_lm_hash)) {
1892 new_lm_pswd = data_blob(NULL, 516);
1893 old_lm_hash_enc = data_blob(NULL, 16);
1894 encode_pw_buffer(new_lm_pswd.data, newpswd,
1895 STR_UNICODE);
1896
1897 SamOEMhash(new_lm_pswd.data, old_nt_hash, 516);
1898 E_old_pw_hash(new_nt_hash, old_lm_hash,
1899 old_lm_hash_enc.data);
1900 } else {
1901 new_lm_pswd.data = NULL;
1902 new_lm_pswd.length = 0;
1903 old_lm_hash_enc.data = NULL;
1904 old_lm_hash_enc.length = 0;
1905 }
1906
1907 encode_pw_buffer(new_nt_pswd.data, newpswd,
1908 STR_UNICODE);
1909
1910 SamOEMhash(new_nt_pswd.data, old_nt_hash, 516);
1911 E_old_pw_hash(new_nt_hash, old_nt_hash,
1912 old_nt_hash_enc.data);
1913 }
1914
1915 if (!full_username && !username) {
1916 x_fprintf(x_stdout, "Error: No username supplied!\n");
1917 } else if ((!new_nt_pswd.data || !old_nt_hash_enc.data) &&
1918 (!new_lm_pswd.data || old_lm_hash_enc.data) ) {
1919 x_fprintf(x_stdout, "Error: No NT or LM password "
1920 "blobs supplied!\n");
1921 } else {
1922 char *error_string = NULL;
1923
1924 if (full_username && !username) {
1925 fstring fstr_user;
1926 fstring fstr_domain;
1927
1928 if (!parse_ntlm_auth_domain_user(full_username,
1929 fstr_user,
1930 fstr_domain)) {
1931 /* username might be 'tainted', don't
1932 * print into our new-line
1933 * deleimianted stream */
1934 x_fprintf(x_stdout, "Error: Could not "
1935 "parse into domain and "
1936 "username\n");
1937 SAFE_FREE(username);
1938 username = smb_xstrdup(full_username);
1939 } else {
1940 SAFE_FREE(username);
1941 SAFE_FREE(domain);
1942 username = smb_xstrdup(fstr_user);
1943 domain = smb_xstrdup(fstr_domain);
1944 }
1945
1946 }
1947
1948 if(!NT_STATUS_IS_OK(contact_winbind_change_pswd_auth_crap(
1949 username, domain,
1950 new_nt_pswd,
1951 old_nt_hash_enc,
1952 new_lm_pswd,
1953 old_lm_hash_enc,
1954 &error_string))) {
1955 x_fprintf(x_stdout, "Password-Change: No\n");
1956 x_fprintf(x_stdout, "Password-Change-Error: "
1957 "%s\n.\n", error_string);
1958 } else {
1959 x_fprintf(x_stdout, "Password-Change: Yes\n");
1960 }
1961
1962 SAFE_FREE(error_string);
1963 }
1964 /* clear out the state */
1965 new_nt_pswd = data_blob(NULL, 0);
1966 old_nt_hash_enc = data_blob(NULL, 0);
1967 new_lm_pswd = data_blob(NULL, 0);
1968 old_nt_hash_enc = data_blob(NULL, 0);
1969 SAFE_FREE(full_username);
1970 SAFE_FREE(username);
1971 SAFE_FREE(domain);
1972 SAFE_FREE(newpswd);
1973 SAFE_FREE(oldpswd);
1974 x_fprintf(x_stdout, ".\n");
1975
1976 return;
1977 }
1978
1979 request = buf;
1980
1981 /* Indicates a base64 encoded structure */
1982 parameter = strstr_m(request, ":: ");
1983 if (!parameter) {
1984 parameter = strstr_m(request, ": ");
1985
1986 if (!parameter) {
1987 DEBUG(0, ("Parameter not found!\n"));
1988 x_fprintf(x_stdout, "Error: Parameter not found!\n.\n");
1989 return;
1990 }
1991
1992 parameter[0] ='\0';
1993 parameter++;
1994 parameter[0] ='\0';
1995 parameter++;
1996 } else {
1997 parameter[0] ='\0';
1998 parameter++;
1999 parameter[0] ='\0';
2000 parameter++;
2001 parameter[0] ='\0';
2002 parameter++;
2003
2004 base64_decode_inplace(parameter);
2005 }
2006
2007 if (strequal(request, "new-nt-password-blob")) {
2008 new_nt_pswd = strhex_to_data_blob(NULL, parameter);
2009 if (new_nt_pswd.length != 516) {
2010 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2011 "(got %d bytes, expected 516)\n.\n",
2012 parameter,
2013 (int)new_nt_pswd.length);
2014 new_nt_pswd = data_blob(NULL, 0);
2015 }
2016 } else if (strequal(request, "old-nt-hash-blob")) {
2017 old_nt_hash_enc = strhex_to_data_blob(NULL, parameter);
2018 if (old_nt_hash_enc.length != 16) {
2019 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2020 "(got %d bytes, expected 16)\n.\n",
2021 parameter,
2022 (int)old_nt_hash_enc.length);
2023 old_nt_hash_enc = data_blob(NULL, 0);
2024 }
2025 } else if (strequal(request, "new-lm-password-blob")) {
2026 new_lm_pswd = strhex_to_data_blob(NULL, parameter);
2027 if (new_lm_pswd.length != 516) {
2028 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2029 "(got %d bytes, expected 516)\n.\n",
2030 parameter,
2031 (int)new_lm_pswd.length);
2032 new_lm_pswd = data_blob(NULL, 0);
2033 }
2034 }
2035 else if (strequal(request, "old-lm-hash-blob")) {
2036 old_lm_hash_enc = strhex_to_data_blob(NULL, parameter);
2037 if (old_lm_hash_enc.length != 16)
2038 {
2039 x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2040 "(got %d bytes, expected 16)\n.\n",
2041 parameter,
2042 (int)old_lm_hash_enc.length);
2043 old_lm_hash_enc = data_blob(NULL, 0);
2044 }
2045 } else if (strequal(request, "nt-domain")) {
2046 domain = smb_xstrdup(parameter);
2047 } else if(strequal(request, "username")) {
2048 username = smb_xstrdup(parameter);
2049 } else if(strequal(request, "full-username")) {
2050 username = smb_xstrdup(parameter);
2051 } else if(strequal(request, "new-password")) {
2052 newpswd = smb_xstrdup(parameter);
2053 } else if (strequal(request, "old-password")) {
2054 oldpswd = smb_xstrdup(parameter);
2055 } else {
2056 x_fprintf(x_stdout, "Error: Unknown request %s\n.\n", request);
2057 }
2058}
2059
2060static void manage_squid_request(enum stdio_helper_mode helper_mode, stdio_helper_function fn)
2061{
2062 char buf[SQUID_BUFFER_SIZE+1];
2063 int length;
2064 char *c;
2065 static BOOL err;
2066
2067 /* this is not a typo - x_fgets doesn't work too well under squid */
2068 if (fgets(buf, sizeof(buf)-1, stdin) == NULL) {
2069 if (ferror(stdin)) {
2070 DEBUG(1, ("fgets() failed! dying..... errno=%d (%s)\n", ferror(stdin),
2071 strerror(ferror(stdin))));
2072
2073 exit(1); /* BIIG buffer */
2074 }
2075 exit(0);
2076 }
2077
2078 c=(char *)memchr(buf,'\n',sizeof(buf)-1);
2079 if (c) {
2080 *c = '\0';
2081 length = c-buf;
2082 } else {
2083 err = 1;
2084 return;
2085 }
2086 if (err) {
2087 DEBUG(2, ("Oversized message\n"));
2088 x_fprintf(x_stderr, "ERR\n");
2089 err = 0;
2090 return;
2091 }
2092
2093 DEBUG(10, ("Got '%s' from squid (length: %d).\n",buf,length));
2094
2095 if (buf[0] == '\0') {
2096 DEBUG(2, ("Invalid Request\n"));
2097 x_fprintf(x_stderr, "ERR\n");
2098 return;
2099 }
2100
2101 fn(helper_mode, buf, length);
2102}
2103
2104
2105static void squid_stream(enum stdio_helper_mode stdio_mode, stdio_helper_function fn) {
2106 /* initialize FDescs */
2107 x_setbuf(x_stdout, NULL);
2108 x_setbuf(x_stderr, NULL);
2109 while(1) {
2110 manage_squid_request(stdio_mode, fn);
2111 }
2112}
2113
2114
2115/* Authenticate a user with a challenge/response */
2116
2117static BOOL check_auth_crap(void)
2118{
2119 NTSTATUS nt_status;
2120 uint32 flags = 0;
2121 char lm_key[8];
2122 char user_session_key[16];
2123 char *hex_lm_key;
2124 char *hex_user_session_key;
2125 char *error_string;
2126 static uint8 zeros[16];
2127
2128 x_setbuf(x_stdout, NULL);
2129
2130 if (request_lm_key)
2131 flags |= WBFLAG_PAM_LMKEY;
2132
2133 if (request_user_session_key)
2134 flags |= WBFLAG_PAM_USER_SESSION_KEY;
2135
2136 flags |= WBFLAG_PAM_NT_STATUS_SQUASH;
2137
2138 nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
2139 opt_workstation,
2140 &opt_challenge,
2141 &opt_lm_response,
2142 &opt_nt_response,
2143 flags,
2144 (unsigned char *)lm_key,
2145 (unsigned char *)user_session_key,
2146 &error_string, NULL);
2147
2148 if (!NT_STATUS_IS_OK(nt_status)) {
2149 x_fprintf(x_stdout, "%s (0x%x)\n",
2150 error_string,
2151 NT_STATUS_V(nt_status));
2152 SAFE_FREE(error_string);
2153 return False;
2154 }
2155
2156 if (request_lm_key
2157 && (memcmp(zeros, lm_key,
2158 sizeof(lm_key)) != 0)) {
2159 hex_lm_key = hex_encode(NULL, (const unsigned char *)lm_key,
2160 sizeof(lm_key));
2161 x_fprintf(x_stdout, "LM_KEY: %s\n", hex_lm_key);
2162 TALLOC_FREE(hex_lm_key);
2163 }
2164 if (request_user_session_key
2165 && (memcmp(zeros, user_session_key,
2166 sizeof(user_session_key)) != 0)) {
2167 hex_user_session_key = hex_encode(NULL, (const unsigned char *)user_session_key,
2168 sizeof(user_session_key));
2169 x_fprintf(x_stdout, "NT_KEY: %s\n", hex_user_session_key);
2170 TALLOC_FREE(hex_user_session_key);
2171 }
2172
2173 return True;
2174}
2175
2176/* Main program */
2177
2178enum {
2179 OPT_USERNAME = 1000,
2180 OPT_DOMAIN,
2181 OPT_WORKSTATION,
2182 OPT_CHALLENGE,
2183 OPT_RESPONSE,
2184 OPT_LM,
2185 OPT_NT,
2186 OPT_PASSWORD,
2187 OPT_LM_KEY,
2188 OPT_USER_SESSION_KEY,
2189 OPT_DIAGNOSTICS,
2190 OPT_REQUIRE_MEMBERSHIP,
2191 OPT_USE_CACHED_CREDS
2192};
2193
2194 int main(int argc, const char **argv)
2195{
2196 int opt;
2197 static const char *helper_protocol;
2198 static int diagnostics;
2199
2200 static const char *hex_challenge;
2201 static const char *hex_lm_response;
2202 static const char *hex_nt_response;
2203
2204 poptContext pc;
2205
2206 /* NOTE: DO NOT change this interface without considering the implications!
2207 This is an external interface, which other programs will use to interact
2208 with this helper.
2209 */
2210
2211 /* We do not use single-letter command abbreviations, because they harm future
2212 interface stability. */
2213
2214 struct poptOption long_options[] = {
2215 POPT_AUTOHELP
2216 { "helper-protocol", 0, POPT_ARG_STRING, &helper_protocol, OPT_DOMAIN, "operate as a stdio-based helper", "helper protocol to use"},
2217 { "username", 0, POPT_ARG_STRING, &opt_username, OPT_USERNAME, "username"},
2218 { "domain", 0, POPT_ARG_STRING, &opt_domain, OPT_DOMAIN, "domain name"},
2219 { "workstation", 0, POPT_ARG_STRING, &opt_workstation, OPT_WORKSTATION, "workstation"},
2220 { "challenge", 0, POPT_ARG_STRING, &hex_challenge, OPT_CHALLENGE, "challenge (HEX encoded)"},
2221 { "lm-response", 0, POPT_ARG_STRING, &hex_lm_response, OPT_LM, "LM Response to the challenge (HEX encoded)"},
2222 { "nt-response", 0, POPT_ARG_STRING, &hex_nt_response, OPT_NT, "NT or NTLMv2 Response to the challenge (HEX encoded)"},
2223 { "password", 0, POPT_ARG_STRING, &opt_password, OPT_PASSWORD, "User's plaintext password"},
2224 { "request-lm-key", 0, POPT_ARG_NONE, &request_lm_key, OPT_LM_KEY, "Retrieve LM session key"},
2225 { "request-nt-key", 0, POPT_ARG_NONE, &request_user_session_key, OPT_USER_SESSION_KEY, "Retrieve User (NT) session key"},
2226 { "use-cached-creds", 0, POPT_ARG_NONE, &use_cached_creds, OPT_USE_CACHED_CREDS, "Use cached credentials if no password is given"},
2227 { "diagnostics", 0, POPT_ARG_NONE, &diagnostics, OPT_DIAGNOSTICS, "Perform diagnostics on the authentictaion chain"},
2228 { "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" },
2229 POPT_COMMON_SAMBA
2230 POPT_TABLEEND
2231 };
2232
2233 /* Samba client initialisation */
2234 load_case_tables();
2235
2236 dbf = x_stderr;
2237
2238 /* Samba client initialisation */
2239
2240 if (!lp_load(dyn_CONFIGFILE, True, False, False, True)) {
2241 d_fprintf(stderr, "ntlm_auth: error opening config file %s. Error was %s\n",
2242 dyn_CONFIGFILE, strerror(errno));
2243 exit(1);
2244 }
2245
2246 /* Parse options */
2247
2248 pc = poptGetContext("ntlm_auth", argc, argv, long_options, 0);
2249
2250 /* Parse command line options */
2251
2252 if (argc == 1) {
2253 poptPrintHelp(pc, stderr, 0);
2254 return 1;
2255 }
2256
2257 pc = poptGetContext(NULL, argc, (const char **)argv, long_options,
2258 POPT_CONTEXT_KEEP_FIRST);
2259
2260 while((opt = poptGetNextOpt(pc)) != -1) {
2261 switch (opt) {
2262 case OPT_CHALLENGE:
2263 opt_challenge = strhex_to_data_blob(NULL, hex_challenge);
2264 if (opt_challenge.length != 8) {
2265 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
2266 hex_challenge,
2267 (int)opt_challenge.length);
2268 exit(1);
2269 }
2270 break;
2271 case OPT_LM:
2272 opt_lm_response = strhex_to_data_blob(NULL, hex_lm_response);
2273 if (opt_lm_response.length != 24) {
2274 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
2275 hex_lm_response,
2276 (int)opt_lm_response.length);
2277 exit(1);
2278 }
2279 break;
2280
2281 case OPT_NT:
2282 opt_nt_response = strhex_to_data_blob(NULL, hex_nt_response);
2283 if (opt_nt_response.length < 24) {
2284 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
2285 hex_nt_response,
2286 (int)opt_nt_response.length);
2287 exit(1);
2288 }
2289 break;
2290
2291 case OPT_REQUIRE_MEMBERSHIP:
2292 if (StrnCaseCmp("S-", require_membership_of, 2) == 0) {
2293 require_membership_of_sid = require_membership_of;
2294 }
2295 break;
2296 }
2297 }
2298
2299 if (opt_username) {
2300 char *domain = SMB_STRDUP(opt_username);
2301 char *p = strchr_m(domain, *lp_winbind_separator());
2302 if (p) {
2303 opt_username = p+1;
2304 *p = '\0';
2305 if (opt_domain && !strequal(opt_domain, domain)) {
2306 x_fprintf(x_stderr, "Domain specified in username (%s) "
2307 "doesn't match specified domain (%s)!\n\n",
2308 domain, opt_domain);
2309 poptPrintHelp(pc, stderr, 0);
2310 exit(1);
2311 }
2312 opt_domain = domain;
2313 } else {
2314 SAFE_FREE(domain);
2315 }
2316 }
2317
2318 /* Note: if opt_domain is "" then send no domain */
2319 if (opt_domain == NULL) {
2320 opt_domain = get_winbind_domain();
2321 }
2322
2323 if (opt_workstation == NULL) {
2324 opt_workstation = "";
2325 }
2326
2327 if (helper_protocol) {
2328 int i;
2329 for (i=0; i<NUM_HELPER_MODES; i++) {
2330 if (strcmp(helper_protocol, stdio_helper_protocols[i].name) == 0) {
2331 squid_stream(stdio_helper_protocols[i].mode, stdio_helper_protocols[i].fn);
2332 exit(0);
2333 }
2334 }
2335 x_fprintf(x_stderr, "unknown helper protocol [%s]\n\nValid helper protools:\n\n", helper_protocol);
2336
2337 for (i=0; i<NUM_HELPER_MODES; i++) {
2338 x_fprintf(x_stderr, "%s\n", stdio_helper_protocols[i].name);
2339 }
2340
2341 exit(1);
2342 }
2343
2344 if (!opt_username || !*opt_username) {
2345 x_fprintf(x_stderr, "username must be specified!\n\n");
2346 poptPrintHelp(pc, stderr, 0);
2347 exit(1);
2348 }
2349
2350 if (opt_challenge.length) {
2351 if (!check_auth_crap()) {
2352 exit(1);
2353 }
2354 exit(0);
2355 }
2356
2357 if (!opt_password) {
2358 opt_password = getpass("password: ");
2359 }
2360
2361 if (diagnostics) {
2362 if (!diagnose_ntlm_auth()) {
2363 return 1;
2364 }
2365 } else {
2366 fstring user;
2367
2368 fstr_sprintf(user, "%s%c%s", opt_domain, winbind_separator(), opt_username);
2369 if (!check_plaintext_auth(user, opt_password, True)) {
2370 return 1;
2371 }
2372 }
2373
2374 /* Exit code */
2375
2376 poptFreeContext(pc);
2377 return 0;
2378}
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