2 Unix SMB/CIFS implementation.
4 Winbind status program.
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
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 #include "utils/ntlm_auth.h"
29 #define DBGC_CLASS DBGC_WINBIND
31 #define SQUID_BUFFER_SIZE 2010
33 enum stdio_helper_mode {
44 typedef void (*stdio_helper_function)(enum stdio_helper_mode stdio_helper_mode,
45 char *buf, int length);
47 static void manage_squid_basic_request (enum stdio_helper_mode stdio_helper_mode,
48 char *buf, int length);
50 static void manage_squid_ntlmssp_request (enum stdio_helper_mode stdio_helper_mode,
51 char *buf, int length);
53 static void manage_client_ntlmssp_request (enum stdio_helper_mode stdio_helper_mode,
54 char *buf, int length);
56 static void manage_gss_spnego_request (enum stdio_helper_mode stdio_helper_mode,
57 char *buf, int length);
59 static void manage_gss_spnego_client_request (enum stdio_helper_mode stdio_helper_mode,
60 char *buf, int length);
62 static void manage_ntlm_server_1_request (enum stdio_helper_mode stdio_helper_mode,
63 char *buf, int length);
66 enum stdio_helper_mode mode;
68 stdio_helper_function fn;
69 } stdio_helper_protocols[] = {
70 { SQUID_2_4_BASIC, "squid-2.4-basic", manage_squid_basic_request},
71 { SQUID_2_5_BASIC, "squid-2.5-basic", manage_squid_basic_request},
72 { SQUID_2_5_NTLMSSP, "squid-2.5-ntlmssp", manage_squid_ntlmssp_request},
73 { NTLMSSP_CLIENT_1, "ntlmssp-client-1", manage_client_ntlmssp_request},
74 { GSS_SPNEGO, "gss-spnego", manage_gss_spnego_request},
75 { GSS_SPNEGO_CLIENT, "gss-spnego-client", manage_gss_spnego_client_request},
76 { NTLM_SERVER_1, "ntlm-server-1", manage_ntlm_server_1_request},
77 { NUM_HELPER_MODES, NULL, NULL}
80 extern int winbindd_fd;
82 const char *opt_username;
83 const char *opt_domain;
84 const char *opt_workstation;
85 const char *opt_password;
86 static DATA_BLOB opt_challenge;
87 static DATA_BLOB opt_lm_response;
88 static DATA_BLOB opt_nt_response;
89 static int request_lm_key;
90 static int request_user_session_key;
92 static const char *require_membership_of;
93 static const char *require_membership_of_sid;
95 static char winbind_separator(void)
97 struct winbindd_response response;
104 ZERO_STRUCT(response);
106 /* Send off request */
108 if (winbindd_request_response(WINBINDD_INFO, NULL, &response) !=
109 NSS_STATUS_SUCCESS) {
110 d_printf("could not obtain winbind separator!\n");
111 return *lp_winbind_separator();
114 sep = response.data.info.winbind_separator;
118 d_printf("winbind separator was NULL!\n");
119 return *lp_winbind_separator();
125 const char *get_winbind_domain(void)
127 struct winbindd_response response;
129 static fstring winbind_domain;
130 if (*winbind_domain) {
131 return winbind_domain;
134 ZERO_STRUCT(response);
136 /* Send off request */
138 if (winbindd_request_response(WINBINDD_DOMAIN_NAME, NULL, &response) !=
139 NSS_STATUS_SUCCESS) {
140 DEBUG(0, ("could not obtain winbind domain name!\n"));
141 return lp_workgroup();
144 fstrcpy(winbind_domain, response.data.domain_name);
146 return winbind_domain;
150 const char *get_winbind_netbios_name(void)
152 struct winbindd_response response;
154 static fstring winbind_netbios_name;
156 if (*winbind_netbios_name) {
157 return winbind_netbios_name;
160 ZERO_STRUCT(response);
162 /* Send off request */
164 if (winbindd_request_response(WINBINDD_NETBIOS_NAME, NULL, &response) !=
165 NSS_STATUS_SUCCESS) {
166 DEBUG(0, ("could not obtain winbind netbios name!\n"));
167 return global_myname();
170 fstrcpy(winbind_netbios_name, response.data.netbios_name);
172 return winbind_netbios_name;
176 DATA_BLOB get_challenge(void)
178 static DATA_BLOB chal;
179 if (opt_challenge.length)
180 return opt_challenge;
182 chal = data_blob(NULL, 8);
184 generate_random_buffer(chal.data, chal.length);
188 /* Copy of parse_domain_user from winbindd_util.c. Parse a string of the
189 form DOMAIN/user into a domain and a user */
191 static BOOL parse_ntlm_auth_domain_user(const char *domuser, fstring domain,
195 char *p = strchr(domuser,winbind_separator());
202 fstrcpy(domain, domuser);
203 domain[PTR_DIFF(p, domuser)] = 0;
209 static BOOL get_require_membership_sid(void) {
210 struct winbindd_request request;
211 struct winbindd_response response;
213 if (!require_membership_of) {
217 if (require_membership_of_sid) {
221 /* Otherwise, ask winbindd for the name->sid request */
223 ZERO_STRUCT(request);
224 ZERO_STRUCT(response);
226 if (!parse_ntlm_auth_domain_user(require_membership_of,
227 request.data.name.dom_name,
228 request.data.name.name)) {
229 DEBUG(0, ("Could not parse %s into seperate domain/name parts!\n",
230 require_membership_of));
234 if (winbindd_request_response(WINBINDD_LOOKUPNAME, &request, &response) !=
235 NSS_STATUS_SUCCESS) {
236 DEBUG(0, ("Winbindd lookupname failed to resolve %s into a SID!\n",
237 require_membership_of));
241 require_membership_of_sid = SMB_STRDUP(response.data.sid.sid);
243 if (require_membership_of_sid)
248 /* Authenticate a user with a plaintext password */
250 static BOOL check_plaintext_auth(const char *user, const char *pass,
251 BOOL stdout_diagnostics)
253 struct winbindd_request request;
254 struct winbindd_response response;
257 if (!get_require_membership_sid()) {
261 /* Send off request */
263 ZERO_STRUCT(request);
264 ZERO_STRUCT(response);
266 fstrcpy(request.data.auth.user, user);
267 fstrcpy(request.data.auth.pass, pass);
268 if (require_membership_of_sid)
269 fstrcpy(request.data.auth.require_membership_of_sid, require_membership_of_sid);
271 result = winbindd_request_response(WINBINDD_PAM_AUTH, &request, &response);
273 /* Display response */
275 if (stdout_diagnostics) {
276 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
277 d_printf("Reading winbind reply failed! (0x01)\n");
280 d_printf("%s: %s (0x%x)\n",
281 response.data.auth.nt_status_string,
282 response.data.auth.error_string,
283 response.data.auth.nt_status);
285 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
286 DEBUG(1, ("Reading winbind reply failed! (0x01)\n"));
289 DEBUG(3, ("%s: %s (0x%x)\n",
290 response.data.auth.nt_status_string,
291 response.data.auth.error_string,
292 response.data.auth.nt_status));
295 return (result == NSS_STATUS_SUCCESS);
298 /* authenticate a user with an encrypted username/password */
300 NTSTATUS contact_winbind_auth_crap(const char *username,
302 const char *workstation,
303 const DATA_BLOB *challenge,
304 const DATA_BLOB *lm_response,
305 const DATA_BLOB *nt_response,
308 uint8 user_session_key[16],
314 struct winbindd_request request;
315 struct winbindd_response response;
317 if (!get_require_membership_sid()) {
318 return NT_STATUS_INVALID_PARAMETER;
321 ZERO_STRUCT(request);
322 ZERO_STRUCT(response);
324 request.flags = flags;
326 if (require_membership_of_sid)
327 fstrcpy(request.data.auth_crap.require_membership_of_sid, require_membership_of_sid);
329 fstrcpy(request.data.auth_crap.user, username);
330 fstrcpy(request.data.auth_crap.domain, domain);
332 fstrcpy(request.data.auth_crap.workstation,
335 memcpy(request.data.auth_crap.chal, challenge->data, MIN(challenge->length, 8));
337 if (lm_response && lm_response->length) {
338 memcpy(request.data.auth_crap.lm_resp,
340 MIN(lm_response->length, sizeof(request.data.auth_crap.lm_resp)));
341 request.data.auth_crap.lm_resp_len = lm_response->length;
344 if (nt_response && nt_response->length) {
345 memcpy(request.data.auth_crap.nt_resp,
347 MIN(nt_response->length, sizeof(request.data.auth_crap.nt_resp)));
348 request.data.auth_crap.nt_resp_len = nt_response->length;
351 result = winbindd_request_response(WINBINDD_PAM_AUTH_CRAP, &request, &response);
353 /* Display response */
355 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
356 nt_status = NT_STATUS_UNSUCCESSFUL;
358 *error_string = smb_xstrdup("Reading winbind reply failed!");
359 free_response(&response);
363 nt_status = (NT_STATUS(response.data.auth.nt_status));
364 if (!NT_STATUS_IS_OK(nt_status)) {
366 *error_string = smb_xstrdup(response.data.auth.error_string);
367 free_response(&response);
371 if ((flags & WBFLAG_PAM_LMKEY) && lm_key) {
372 memcpy(lm_key, response.data.auth.first_8_lm_hash,
373 sizeof(response.data.auth.first_8_lm_hash));
375 if ((flags & WBFLAG_PAM_USER_SESSION_KEY) && user_session_key) {
376 memcpy(user_session_key, response.data.auth.user_session_key,
377 sizeof(response.data.auth.user_session_key));
380 if (flags & WBFLAG_PAM_UNIX_NAME) {
381 *unix_name = SMB_STRDUP((char *)response.extra_data);
383 free_response(&response);
384 return NT_STATUS_NO_MEMORY;
388 free_response(&response);
392 static NTSTATUS winbind_pw_check(struct ntlmssp_state *ntlmssp_state, DATA_BLOB *user_session_key, DATA_BLOB *lm_session_key)
394 static const char zeros[16];
398 uint8 user_sess_key[16];
401 nt_status = contact_winbind_auth_crap(ntlmssp_state->user, ntlmssp_state->domain,
402 ntlmssp_state->workstation,
403 &ntlmssp_state->chal,
404 &ntlmssp_state->lm_resp,
405 &ntlmssp_state->nt_resp,
406 WBFLAG_PAM_LMKEY | WBFLAG_PAM_USER_SESSION_KEY | WBFLAG_PAM_UNIX_NAME,
407 lm_key, user_sess_key,
408 &error_string, &unix_name);
410 if (NT_STATUS_IS_OK(nt_status)) {
411 if (memcmp(lm_key, zeros, 8) != 0) {
412 *lm_session_key = data_blob(NULL, 16);
413 memcpy(lm_session_key->data, lm_key, 8);
414 memset(lm_session_key->data+8, '\0', 8);
417 if (memcmp(user_sess_key, zeros, 16) != 0) {
418 *user_session_key = data_blob(user_sess_key, 16);
420 ntlmssp_state->auth_context = talloc_strdup(ntlmssp_state->mem_ctx, unix_name);
421 SAFE_FREE(unix_name);
423 DEBUG(NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED) ? 0 : 3,
424 ("Login for user [%s]\\[%s]@[%s] failed due to [%s]\n",
425 ntlmssp_state->domain, ntlmssp_state->user,
426 ntlmssp_state->workstation,
427 error_string ? error_string : "unknown error (NULL)"));
428 ntlmssp_state->auth_context = NULL;
433 static NTSTATUS local_pw_check(struct ntlmssp_state *ntlmssp_state, DATA_BLOB *user_session_key, DATA_BLOB *lm_session_key)
436 uint8 lm_pw[16], nt_pw[16];
438 nt_lm_owf_gen (opt_password, nt_pw, lm_pw);
440 nt_status = ntlm_password_check(ntlmssp_state->mem_ctx,
441 &ntlmssp_state->chal,
442 &ntlmssp_state->lm_resp,
443 &ntlmssp_state->nt_resp,
447 ntlmssp_state->domain,
448 lm_pw, nt_pw, user_session_key, lm_session_key);
450 if (NT_STATUS_IS_OK(nt_status)) {
451 ntlmssp_state->auth_context = talloc_asprintf(ntlmssp_state->mem_ctx,
452 "%s%c%s", ntlmssp_state->domain,
453 *lp_winbind_separator(),
454 ntlmssp_state->user);
456 DEBUG(3, ("Login for user [%s]\\[%s]@[%s] failed due to [%s]\n",
457 ntlmssp_state->domain, ntlmssp_state->user, ntlmssp_state->workstation,
458 nt_errstr(nt_status)));
459 ntlmssp_state->auth_context = NULL;
464 static NTSTATUS ntlm_auth_start_ntlmssp_client(NTLMSSP_STATE **client_ntlmssp_state)
467 if ( (opt_username == NULL) || (opt_domain == NULL) ) {
468 status = NT_STATUS_UNSUCCESSFUL;
469 DEBUG(1, ("Need username and domain for NTLMSSP\n"));
470 return NT_STATUS_INVALID_PARAMETER;
473 status = ntlmssp_client_start(client_ntlmssp_state);
475 if (!NT_STATUS_IS_OK(status)) {
476 DEBUG(1, ("Could not start NTLMSSP client: %s\n",
478 ntlmssp_end(client_ntlmssp_state);
482 status = ntlmssp_set_username(*client_ntlmssp_state, opt_username);
484 if (!NT_STATUS_IS_OK(status)) {
485 DEBUG(1, ("Could not set username: %s\n",
487 ntlmssp_end(client_ntlmssp_state);
491 status = ntlmssp_set_domain(*client_ntlmssp_state, opt_domain);
493 if (!NT_STATUS_IS_OK(status)) {
494 DEBUG(1, ("Could not set domain: %s\n",
496 ntlmssp_end(client_ntlmssp_state);
500 status = ntlmssp_set_password(*client_ntlmssp_state, opt_password);
502 if (!NT_STATUS_IS_OK(status)) {
503 DEBUG(1, ("Could not set password: %s\n",
505 ntlmssp_end(client_ntlmssp_state);
511 static NTSTATUS ntlm_auth_start_ntlmssp_server(NTLMSSP_STATE **ntlmssp_state)
513 NTSTATUS status = ntlmssp_server_start(ntlmssp_state);
515 if (!NT_STATUS_IS_OK(status)) {
516 DEBUG(1, ("Could not start NTLMSSP client: %s\n",
521 /* Have we been given a local password, or should we ask winbind? */
523 (*ntlmssp_state)->check_password = local_pw_check;
524 (*ntlmssp_state)->get_domain = lp_workgroup;
525 (*ntlmssp_state)->get_global_myname = global_myname;
527 (*ntlmssp_state)->check_password = winbind_pw_check;
528 (*ntlmssp_state)->get_domain = get_winbind_domain;
529 (*ntlmssp_state)->get_global_myname = get_winbind_netbios_name;
534 static void manage_squid_ntlmssp_request(enum stdio_helper_mode stdio_helper_mode,
535 char *buf, int length)
537 static NTLMSSP_STATE *ntlmssp_state = NULL;
538 DATA_BLOB request, reply;
541 if (strlen(buf) < 2) {
542 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
543 x_fprintf(x_stdout, "BH\n");
547 if (strlen(buf) > 3) {
548 request = base64_decode_data_blob(buf + 3);
550 request = data_blob(NULL, 0);
553 if ((strncmp(buf, "PW ", 3) == 0)) {
554 /* The calling application wants us to use a local password (rather than winbindd) */
556 opt_password = SMB_STRNDUP((const char *)request.data, request.length);
558 if (opt_password == NULL) {
559 DEBUG(1, ("Out of memory\n"));
560 x_fprintf(x_stdout, "BH\n");
561 data_blob_free(&request);
565 x_fprintf(x_stdout, "OK\n");
566 data_blob_free(&request);
570 if (strncmp(buf, "YR", 2) == 0) {
572 ntlmssp_end(&ntlmssp_state);
573 } else if (strncmp(buf, "KK", 2) == 0) {
576 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
577 x_fprintf(x_stdout, "BH\n");
581 if (!ntlmssp_state) {
582 if (!NT_STATUS_IS_OK(nt_status = ntlm_auth_start_ntlmssp_server(&ntlmssp_state))) {
583 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
588 DEBUG(10, ("got NTLMSSP packet:\n"));
589 dump_data(10, (const char *)request.data, request.length);
591 nt_status = ntlmssp_update(ntlmssp_state, request, &reply);
593 if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
594 char *reply_base64 = base64_encode_data_blob(reply);
595 x_fprintf(x_stdout, "TT %s\n", reply_base64);
596 SAFE_FREE(reply_base64);
597 data_blob_free(&reply);
598 DEBUG(10, ("NTLMSSP challenge\n"));
599 } else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED)) {
600 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
601 DEBUG(0, ("NTLMSSP BH: %s\n", nt_errstr(nt_status)));
603 ntlmssp_end(&ntlmssp_state);
604 } else if (!NT_STATUS_IS_OK(nt_status)) {
605 x_fprintf(x_stdout, "NA %s\n", nt_errstr(nt_status));
606 DEBUG(10, ("NTLMSSP %s\n", nt_errstr(nt_status)));
608 x_fprintf(x_stdout, "AF %s\n", (char *)ntlmssp_state->auth_context);
609 DEBUG(10, ("NTLMSSP OK!\n"));
612 data_blob_free(&request);
615 static void manage_client_ntlmssp_request(enum stdio_helper_mode stdio_helper_mode,
616 char *buf, int length)
618 static NTLMSSP_STATE *ntlmssp_state = NULL;
619 DATA_BLOB request, reply;
623 if (strlen(buf) < 2) {
624 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
625 x_fprintf(x_stdout, "BH\n");
629 if (strlen(buf) > 3) {
630 request = base64_decode_data_blob(buf + 3);
632 request = data_blob(NULL, 0);
635 if (strncmp(buf, "PW ", 3) == 0) {
636 /* We asked for a password and obviously got it :-) */
638 opt_password = SMB_STRNDUP((const char *)request.data, request.length);
640 if (opt_password == NULL) {
641 DEBUG(1, ("Out of memory\n"));
642 x_fprintf(x_stdout, "BH\n");
643 data_blob_free(&request);
647 x_fprintf(x_stdout, "OK\n");
648 data_blob_free(&request);
652 if (opt_password == NULL) {
654 /* Request a password from the calling process. After
655 sending it, the calling process should retry asking for the negotiate. */
657 DEBUG(10, ("Requesting password\n"));
658 x_fprintf(x_stdout, "PW\n");
662 if (strncmp(buf, "YR", 2) == 0) {
664 ntlmssp_end(&ntlmssp_state);
665 } else if (strncmp(buf, "TT", 2) == 0) {
668 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
669 x_fprintf(x_stdout, "BH\n");
673 if (!ntlmssp_state) {
674 if (!NT_STATUS_IS_OK(nt_status = ntlm_auth_start_ntlmssp_client(&ntlmssp_state))) {
675 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
681 DEBUG(10, ("got NTLMSSP packet:\n"));
682 dump_data(10, (const char *)request.data, request.length);
684 nt_status = ntlmssp_update(ntlmssp_state, request, &reply);
686 if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
687 char *reply_base64 = base64_encode_data_blob(reply);
689 x_fprintf(x_stdout, "YR %s\n", reply_base64);
691 x_fprintf(x_stdout, "KK %s\n", reply_base64);
693 SAFE_FREE(reply_base64);
694 data_blob_free(&reply);
695 DEBUG(10, ("NTLMSSP challenge\n"));
696 } else if (NT_STATUS_IS_OK(nt_status)) {
697 char *reply_base64 = base64_encode_data_blob(reply);
698 x_fprintf(x_stdout, "AF %s\n", reply_base64);
699 DEBUG(10, ("NTLMSSP OK!\n"));
701 ntlmssp_end(&ntlmssp_state);
703 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
704 DEBUG(0, ("NTLMSSP BH: %s\n", nt_errstr(nt_status)));
706 ntlmssp_end(&ntlmssp_state);
709 data_blob_free(&request);
712 static void manage_squid_basic_request(enum stdio_helper_mode stdio_helper_mode,
713 char *buf, int length)
718 pass=memchr(buf,' ',length);
720 DEBUG(2, ("Password not found. Denying access\n"));
721 x_fprintf(x_stdout, "ERR\n");
727 if (stdio_helper_mode == SQUID_2_5_BASIC) {
728 rfc1738_unescape(user);
729 rfc1738_unescape(pass);
732 if (check_plaintext_auth(user, pass, False)) {
733 x_fprintf(x_stdout, "OK\n");
735 x_fprintf(x_stdout, "ERR\n");
739 static void offer_gss_spnego_mechs(void) {
747 pstring myname_lower;
751 pstrcpy(myname_lower, global_myname());
752 strlower_m(myname_lower);
754 pstr_sprintf(principal, "%s$@%s", myname_lower, lp_realm());
756 /* Server negTokenInit (mech offerings) */
757 spnego.type = SPNEGO_NEG_TOKEN_INIT;
758 spnego.negTokenInit.mechTypes = SMB_XMALLOC_ARRAY(const char *, 2);
760 spnego.negTokenInit.mechTypes[0] = smb_xstrdup(OID_KERBEROS5_OLD);
761 spnego.negTokenInit.mechTypes[1] = smb_xstrdup(OID_NTLMSSP);
762 spnego.negTokenInit.mechTypes[2] = NULL;
764 spnego.negTokenInit.mechTypes[0] = smb_xstrdup(OID_NTLMSSP);
765 spnego.negTokenInit.mechTypes[1] = NULL;
769 spnego.negTokenInit.mechListMIC = data_blob(principal,
772 len = write_spnego_data(&token, &spnego);
773 free_spnego_data(&spnego);
776 DEBUG(1, ("Could not write SPNEGO data blob\n"));
777 x_fprintf(x_stdout, "BH\n");
781 reply_base64 = base64_encode_data_blob(token);
782 x_fprintf(x_stdout, "TT %s *\n", reply_base64);
784 SAFE_FREE(reply_base64);
785 data_blob_free(&token);
786 DEBUG(10, ("sent SPNEGO negTokenInit\n"));
790 static void manage_gss_spnego_request(enum stdio_helper_mode stdio_helper_mode,
791 char *buf, int length)
793 static NTLMSSP_STATE *ntlmssp_state = NULL;
794 SPNEGO_DATA request, response;
798 TALLOC_CTX *mem_ctx = talloc_init("manage_gss_spnego_request");
803 const char *reply_code;
805 pstring reply_argument;
807 if (strlen(buf) < 2) {
808 DEBUG(1, ("SPENGO query [%s] invalid", buf));
809 x_fprintf(x_stdout, "BH\n");
813 if (strncmp(buf, "YR", 2) == 0) {
815 ntlmssp_end(&ntlmssp_state);
816 } else if (strncmp(buf, "KK", 2) == 0) {
819 DEBUG(1, ("SPENGO query [%s] invalid", buf));
820 x_fprintf(x_stdout, "BH\n");
824 if ( (strlen(buf) == 2)) {
826 /* no client data, get the negTokenInit offering
829 offer_gss_spnego_mechs();
833 /* All subsequent requests have a blob. This might be negTokenInit or negTokenTarg */
835 if (strlen(buf) <= 3) {
836 DEBUG(1, ("GSS-SPNEGO query [%s] invalid\n", buf));
837 x_fprintf(x_stdout, "BH\n");
841 token = base64_decode_data_blob(buf + 3);
842 len = read_spnego_data(token, &request);
843 data_blob_free(&token);
846 DEBUG(1, ("GSS-SPNEGO query [%s] invalid", buf));
847 x_fprintf(x_stdout, "BH\n");
851 if (request.type == SPNEGO_NEG_TOKEN_INIT) {
853 /* Second request from Client. This is where the
854 client offers its mechanism to use. */
856 if ( (request.negTokenInit.mechTypes == NULL) ||
857 (request.negTokenInit.mechTypes[0] == NULL) ) {
858 DEBUG(1, ("Client did not offer any mechanism"));
859 x_fprintf(x_stdout, "BH\n");
863 status = NT_STATUS_UNSUCCESSFUL;
864 if (strcmp(request.negTokenInit.mechTypes[0], OID_NTLMSSP) == 0) {
866 if ( request.negTokenInit.mechToken.data == NULL ) {
867 DEBUG(1, ("Client did not provide NTLMSSP data\n"));
868 x_fprintf(x_stdout, "BH\n");
872 if ( ntlmssp_state != NULL ) {
873 DEBUG(1, ("Client wants a new NTLMSSP challenge, but "
874 "already got one\n"));
875 x_fprintf(x_stdout, "BH\n");
876 ntlmssp_end(&ntlmssp_state);
880 if (!NT_STATUS_IS_OK(status = ntlm_auth_start_ntlmssp_server(&ntlmssp_state))) {
881 x_fprintf(x_stdout, "BH %s\n", nt_errstr(status));
885 DEBUG(10, ("got NTLMSSP packet:\n"));
886 dump_data(10, (const char *)request.negTokenInit.mechToken.data,
887 request.negTokenInit.mechToken.length);
889 response.type = SPNEGO_NEG_TOKEN_TARG;
890 response.negTokenTarg.supportedMech = SMB_STRDUP(OID_NTLMSSP);
891 response.negTokenTarg.mechListMIC = data_blob(NULL, 0);
893 status = ntlmssp_update(ntlmssp_state,
894 request.negTokenInit.mechToken,
895 &response.negTokenTarg.responseToken);
899 if (strcmp(request.negTokenInit.mechTypes[0], OID_KERBEROS5_OLD) == 0) {
903 DATA_BLOB session_key;
905 if ( request.negTokenInit.mechToken.data == NULL ) {
906 DEBUG(1, ("Client did not provide Kerberos data\n"));
907 x_fprintf(x_stdout, "BH\n");
911 response.type = SPNEGO_NEG_TOKEN_TARG;
912 response.negTokenTarg.supportedMech = SMB_STRDUP(OID_KERBEROS5_OLD);
913 response.negTokenTarg.mechListMIC = data_blob(NULL, 0);
914 response.negTokenTarg.responseToken = data_blob(NULL, 0);
916 status = ads_verify_ticket(mem_ctx, lp_realm(),
917 &request.negTokenInit.mechToken,
918 &principal, NULL, &ap_rep,
921 talloc_destroy(mem_ctx);
923 /* Now in "principal" we have the name we are
926 if (NT_STATUS_IS_OK(status)) {
928 domain = strchr_m(principal, '@');
930 if (domain == NULL) {
931 DEBUG(1, ("Did not get a valid principal "
932 "from ads_verify_ticket\n"));
933 x_fprintf(x_stdout, "BH\n");
938 domain = SMB_STRDUP(domain);
939 user = SMB_STRDUP(principal);
941 data_blob_free(&ap_rep);
943 SAFE_FREE(principal);
950 if ( (request.negTokenTarg.supportedMech == NULL) ||
951 ( strcmp(request.negTokenTarg.supportedMech, OID_NTLMSSP) != 0 ) ) {
952 /* Kerberos should never send a negTokenTarg, OID_NTLMSSP
953 is the only one we support that sends this stuff */
954 DEBUG(1, ("Got a negTokenTarg for something non-NTLMSSP: %s\n",
955 request.negTokenTarg.supportedMech));
956 x_fprintf(x_stdout, "BH\n");
960 if (request.negTokenTarg.responseToken.data == NULL) {
961 DEBUG(1, ("Got a negTokenTarg without a responseToken!\n"));
962 x_fprintf(x_stdout, "BH\n");
966 status = ntlmssp_update(ntlmssp_state,
967 request.negTokenTarg.responseToken,
968 &response.negTokenTarg.responseToken);
970 response.type = SPNEGO_NEG_TOKEN_TARG;
971 response.negTokenTarg.supportedMech = SMB_STRDUP(OID_NTLMSSP);
972 response.negTokenTarg.mechListMIC = data_blob(NULL, 0);
974 if (NT_STATUS_IS_OK(status)) {
975 user = SMB_STRDUP(ntlmssp_state->user);
976 domain = SMB_STRDUP(ntlmssp_state->domain);
977 ntlmssp_end(&ntlmssp_state);
981 free_spnego_data(&request);
983 if (NT_STATUS_IS_OK(status)) {
984 response.negTokenTarg.negResult = SPNEGO_ACCEPT_COMPLETED;
986 pstr_sprintf(reply_argument, "%s\\%s", domain, user);
987 } else if (NT_STATUS_EQUAL(status,
988 NT_STATUS_MORE_PROCESSING_REQUIRED)) {
989 response.negTokenTarg.negResult = SPNEGO_ACCEPT_INCOMPLETE;
991 pstr_sprintf(reply_argument, "*");
993 response.negTokenTarg.negResult = SPNEGO_REJECT;
995 pstrcpy(reply_argument, nt_errstr(status));
1001 len = write_spnego_data(&token, &response);
1002 free_spnego_data(&response);
1005 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1006 x_fprintf(x_stdout, "BH\n");
1010 reply_base64 = base64_encode_data_blob(token);
1012 x_fprintf(x_stdout, "%s %s %s\n",
1013 reply_code, reply_base64, reply_argument);
1015 SAFE_FREE(reply_base64);
1016 data_blob_free(&token);
1021 static NTLMSSP_STATE *client_ntlmssp_state = NULL;
1023 static BOOL manage_client_ntlmssp_init(SPNEGO_DATA spnego)
1026 DATA_BLOB null_blob = data_blob(NULL, 0);
1027 DATA_BLOB to_server;
1028 char *to_server_base64;
1029 const char *my_mechs[] = {OID_NTLMSSP, NULL};
1031 DEBUG(10, ("Got spnego negTokenInit with NTLMSSP\n"));
1033 if (client_ntlmssp_state != NULL) {
1034 DEBUG(1, ("Request for initial SPNEGO request where "
1035 "we already have a state\n"));
1039 if (!client_ntlmssp_state) {
1040 if (!NT_STATUS_IS_OK(status = ntlm_auth_start_ntlmssp_client(&client_ntlmssp_state))) {
1041 x_fprintf(x_stdout, "BH %s\n", nt_errstr(status));
1047 if (opt_password == NULL) {
1049 /* Request a password from the calling process. After
1050 sending it, the calling process should retry with
1051 the negTokenInit. */
1053 DEBUG(10, ("Requesting password\n"));
1054 x_fprintf(x_stdout, "PW\n");
1058 spnego.type = SPNEGO_NEG_TOKEN_INIT;
1059 spnego.negTokenInit.mechTypes = my_mechs;
1060 spnego.negTokenInit.reqFlags = 0;
1061 spnego.negTokenInit.mechListMIC = null_blob;
1063 status = ntlmssp_update(client_ntlmssp_state, null_blob,
1064 &spnego.negTokenInit.mechToken);
1066 if ( !(NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED) ||
1067 NT_STATUS_IS_OK(status)) ) {
1068 DEBUG(1, ("Expected OK or MORE_PROCESSING_REQUIRED, got: %s\n",
1069 nt_errstr(status)));
1070 ntlmssp_end(&client_ntlmssp_state);
1074 write_spnego_data(&to_server, &spnego);
1075 data_blob_free(&spnego.negTokenInit.mechToken);
1077 to_server_base64 = base64_encode_data_blob(to_server);
1078 data_blob_free(&to_server);
1079 x_fprintf(x_stdout, "KK %s\n", to_server_base64);
1080 SAFE_FREE(to_server_base64);
1084 static void manage_client_ntlmssp_targ(SPNEGO_DATA spnego)
1087 DATA_BLOB null_blob = data_blob(NULL, 0);
1089 DATA_BLOB to_server;
1090 char *to_server_base64;
1092 DEBUG(10, ("Got spnego negTokenTarg with NTLMSSP\n"));
1094 if (client_ntlmssp_state == NULL) {
1095 DEBUG(1, ("Got NTLMSSP tArg without a client state\n"));
1096 x_fprintf(x_stdout, "BH\n");
1097 ntlmssp_end(&client_ntlmssp_state);
1101 if (spnego.negTokenTarg.negResult == SPNEGO_REJECT) {
1102 x_fprintf(x_stdout, "NA\n");
1103 ntlmssp_end(&client_ntlmssp_state);
1107 if (spnego.negTokenTarg.negResult == SPNEGO_ACCEPT_COMPLETED) {
1108 x_fprintf(x_stdout, "AF\n");
1109 ntlmssp_end(&client_ntlmssp_state);
1113 status = ntlmssp_update(client_ntlmssp_state,
1114 spnego.negTokenTarg.responseToken,
1117 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1118 DEBUG(1, ("Expected MORE_PROCESSING_REQUIRED from "
1119 "ntlmssp_client_update, got: %s\n",
1120 nt_errstr(status)));
1121 x_fprintf(x_stdout, "BH\n");
1122 data_blob_free(&request);
1123 ntlmssp_end(&client_ntlmssp_state);
1127 spnego.type = SPNEGO_NEG_TOKEN_TARG;
1128 spnego.negTokenTarg.negResult = SPNEGO_ACCEPT_INCOMPLETE;
1129 spnego.negTokenTarg.supportedMech = (char *)OID_NTLMSSP;
1130 spnego.negTokenTarg.responseToken = request;
1131 spnego.negTokenTarg.mechListMIC = null_blob;
1133 write_spnego_data(&to_server, &spnego);
1134 data_blob_free(&request);
1136 to_server_base64 = base64_encode_data_blob(to_server);
1137 data_blob_free(&to_server);
1138 x_fprintf(x_stdout, "KK %s\n", to_server_base64);
1139 SAFE_FREE(to_server_base64);
1145 static BOOL manage_client_krb5_init(SPNEGO_DATA spnego)
1148 DATA_BLOB tkt, to_server;
1149 DATA_BLOB session_key_krb5 = data_blob(NULL, 0);
1154 const char *my_mechs[] = {OID_KERBEROS5_OLD, NULL};
1157 if ( (spnego.negTokenInit.mechListMIC.data == NULL) ||
1158 (spnego.negTokenInit.mechListMIC.length == 0) ) {
1159 DEBUG(1, ("Did not get a principal for krb5\n"));
1163 principal = SMB_MALLOC(spnego.negTokenInit.mechListMIC.length+1);
1165 if (principal == NULL) {
1166 DEBUG(1, ("Could not malloc principal\n"));
1170 memcpy(principal, spnego.negTokenInit.mechListMIC.data,
1171 spnego.negTokenInit.mechListMIC.length);
1172 principal[spnego.negTokenInit.mechListMIC.length] = '\0';
1174 retval = cli_krb5_get_ticket(principal, 0, &tkt, &session_key_krb5, 0);
1180 /* Let's try to first get the TGT, for that we need a
1183 if (opt_password == NULL) {
1184 DEBUG(10, ("Requesting password\n"));
1185 x_fprintf(x_stdout, "PW\n");
1189 pstr_sprintf(user, "%s@%s", opt_username, opt_domain);
1191 if ((retval = kerberos_kinit_password(user, opt_password,
1193 DEBUG(10, ("Requesting TGT failed: %s\n", error_message(retval)));
1197 retval = cli_krb5_get_ticket(principal, 0, &tkt, &session_key_krb5, 0);
1200 DEBUG(10, ("Kinit suceeded, but getting a ticket failed: %s\n", error_message(retval)));
1205 data_blob_free(&session_key_krb5);
1209 reply.type = SPNEGO_NEG_TOKEN_INIT;
1210 reply.negTokenInit.mechTypes = my_mechs;
1211 reply.negTokenInit.reqFlags = 0;
1212 reply.negTokenInit.mechToken = tkt;
1213 reply.negTokenInit.mechListMIC = data_blob(NULL, 0);
1215 len = write_spnego_data(&to_server, &reply);
1216 data_blob_free(&tkt);
1219 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1223 reply_base64 = base64_encode_data_blob(to_server);
1224 x_fprintf(x_stdout, "KK %s *\n", reply_base64);
1226 SAFE_FREE(reply_base64);
1227 data_blob_free(&to_server);
1228 DEBUG(10, ("sent GSS-SPNEGO KERBEROS5 negTokenInit\n"));
1232 static void manage_client_krb5_targ(SPNEGO_DATA spnego)
1234 switch (spnego.negTokenTarg.negResult) {
1235 case SPNEGO_ACCEPT_INCOMPLETE:
1236 DEBUG(1, ("Got a Kerberos negTokenTarg with ACCEPT_INCOMPLETE\n"));
1237 x_fprintf(x_stdout, "BH\n");
1239 case SPNEGO_ACCEPT_COMPLETED:
1240 DEBUG(10, ("Accept completed\n"));
1241 x_fprintf(x_stdout, "AF\n");
1244 DEBUG(10, ("Rejected\n"));
1245 x_fprintf(x_stdout, "NA\n");
1248 DEBUG(1, ("Got an invalid negTokenTarg\n"));
1249 x_fprintf(x_stdout, "AF\n");
1255 static void manage_gss_spnego_client_request(enum stdio_helper_mode stdio_helper_mode,
1256 char *buf, int length)
1262 if (strlen(buf) <= 3) {
1263 DEBUG(1, ("SPNEGO query [%s] too short\n", buf));
1264 x_fprintf(x_stdout, "BH\n");
1268 request = base64_decode_data_blob(buf+3);
1270 if (strncmp(buf, "PW ", 3) == 0) {
1272 /* We asked for a password and obviously got it :-) */
1274 opt_password = SMB_STRNDUP((const char *)request.data, request.length);
1276 if (opt_password == NULL) {
1277 DEBUG(1, ("Out of memory\n"));
1278 x_fprintf(x_stdout, "BH\n");
1279 data_blob_free(&request);
1283 x_fprintf(x_stdout, "OK\n");
1284 data_blob_free(&request);
1288 if ( (strncmp(buf, "TT ", 3) != 0) &&
1289 (strncmp(buf, "AF ", 3) != 0) &&
1290 (strncmp(buf, "NA ", 3) != 0) ) {
1291 DEBUG(1, ("SPNEGO request [%s] invalid\n", buf));
1292 x_fprintf(x_stdout, "BH\n");
1293 data_blob_free(&request);
1297 /* So we got a server challenge to generate a SPNEGO
1298 client-to-server request... */
1300 len = read_spnego_data(request, &spnego);
1301 data_blob_free(&request);
1304 DEBUG(1, ("Could not read SPNEGO data for [%s]\n", buf));
1305 x_fprintf(x_stdout, "BH\n");
1309 if (spnego.type == SPNEGO_NEG_TOKEN_INIT) {
1311 /* The server offers a list of mechanisms */
1313 const char **mechType = (const char **)spnego.negTokenInit.mechTypes;
1315 while (*mechType != NULL) {
1318 if ( (strcmp(*mechType, OID_KERBEROS5_OLD) == 0) ||
1319 (strcmp(*mechType, OID_KERBEROS5) == 0) ) {
1320 if (manage_client_krb5_init(spnego))
1325 if (strcmp(*mechType, OID_NTLMSSP) == 0) {
1326 if (manage_client_ntlmssp_init(spnego))
1333 DEBUG(1, ("Server offered no compatible mechanism\n"));
1334 x_fprintf(x_stdout, "BH\n");
1338 if (spnego.type == SPNEGO_NEG_TOKEN_TARG) {
1340 if (spnego.negTokenTarg.supportedMech == NULL) {
1341 /* On accept/reject Windows does not send the
1342 mechanism anymore. Handle that here and
1343 shut down the mechanisms. */
1345 switch (spnego.negTokenTarg.negResult) {
1346 case SPNEGO_ACCEPT_COMPLETED:
1347 x_fprintf(x_stdout, "AF\n");
1350 x_fprintf(x_stdout, "NA\n");
1353 DEBUG(1, ("Got a negTokenTarg with no mech and an "
1354 "unknown negResult: %d\n",
1355 spnego.negTokenTarg.negResult));
1356 x_fprintf(x_stdout, "BH\n");
1359 ntlmssp_end(&client_ntlmssp_state);
1363 if (strcmp(spnego.negTokenTarg.supportedMech,
1364 OID_NTLMSSP) == 0) {
1365 manage_client_ntlmssp_targ(spnego);
1370 if (strcmp(spnego.negTokenTarg.supportedMech,
1371 OID_KERBEROS5_OLD) == 0) {
1372 manage_client_krb5_targ(spnego);
1379 DEBUG(1, ("Got an SPNEGO token I could not handle [%s]!\n", buf));
1380 x_fprintf(x_stdout, "BH\n");
1384 free_spnego_data(&spnego);
1388 static void manage_ntlm_server_1_request(enum stdio_helper_mode stdio_helper_mode,
1389 char *buf, int length)
1391 char *request, *parameter;
1392 static DATA_BLOB challenge;
1393 static DATA_BLOB lm_response;
1394 static DATA_BLOB nt_response;
1395 static char *full_username;
1396 static char *username;
1397 static char *domain;
1398 static char *plaintext_password;
1399 static BOOL ntlm_server_1_user_session_key;
1400 static BOOL ntlm_server_1_lm_session_key;
1402 if (strequal(buf, ".")) {
1403 if (!full_username && !username) {
1404 x_fprintf(x_stdout, "Error: No username supplied!\n");
1405 } else if (plaintext_password) {
1406 /* handle this request as plaintext */
1407 if (!full_username) {
1408 if (asprintf(&full_username, "%s%c%s", domain, winbind_separator(), username) == -1) {
1409 x_fprintf(x_stdout, "Error: Out of memory in asprintf!\n.\n");
1413 if (check_plaintext_auth(full_username, plaintext_password, False)) {
1414 x_fprintf(x_stdout, "Authenticated: Yes\n");
1416 x_fprintf(x_stdout, "Authenticated: No\n");
1418 } else if (!lm_response.data && !nt_response.data) {
1419 x_fprintf(x_stdout, "Error: No password supplied!\n");
1420 } else if (!challenge.data) {
1421 x_fprintf(x_stdout, "Error: No lanman-challenge supplied!\n");
1423 char *error_string = NULL;
1425 uchar user_session_key[16];
1428 if (full_username && !username) {
1430 fstring fstr_domain;
1432 if (!parse_ntlm_auth_domain_user(full_username, fstr_user, fstr_domain)) {
1433 /* username might be 'tainted', don't print into our new-line deleimianted stream */
1434 x_fprintf(x_stdout, "Error: Could not parse into domain and username\n");
1436 SAFE_FREE(username);
1438 username = smb_xstrdup(fstr_user);
1439 domain = smb_xstrdup(fstr_domain);
1443 domain = smb_xstrdup(get_winbind_domain());
1446 if (ntlm_server_1_lm_session_key)
1447 flags |= WBFLAG_PAM_LMKEY;
1449 if (ntlm_server_1_user_session_key)
1450 flags |= WBFLAG_PAM_USER_SESSION_KEY;
1452 if (!NT_STATUS_IS_OK(
1453 contact_winbind_auth_crap(username,
1465 x_fprintf(x_stdout, "Authenticated: No\n");
1466 x_fprintf(x_stdout, "Authentication-Error: %s\n.\n", error_string);
1467 SAFE_FREE(error_string);
1469 static char zeros[16];
1471 char *hex_user_session_key;
1473 x_fprintf(x_stdout, "Authenticated: Yes\n");
1475 if (ntlm_server_1_lm_session_key
1476 && (memcmp(zeros, lm_key,
1477 sizeof(lm_key)) != 0)) {
1478 hex_lm_key = hex_encode(NULL,
1479 (const unsigned char *)lm_key,
1481 x_fprintf(x_stdout, "LANMAN-Session-Key: %s\n", hex_lm_key);
1482 talloc_free(hex_lm_key);
1485 if (ntlm_server_1_user_session_key
1486 && (memcmp(zeros, user_session_key,
1487 sizeof(user_session_key)) != 0)) {
1488 hex_user_session_key = hex_encode(NULL,
1489 (const unsigned char *)user_session_key,
1490 sizeof(user_session_key));
1491 x_fprintf(x_stdout, "User-Session-Key: %s\n", hex_user_session_key);
1492 talloc_free(hex_user_session_key);
1496 /* clear out the state */
1497 challenge = data_blob(NULL, 0);
1498 nt_response = data_blob(NULL, 0);
1499 lm_response = data_blob(NULL, 0);
1500 SAFE_FREE(full_username);
1501 SAFE_FREE(username);
1503 SAFE_FREE(plaintext_password);
1504 ntlm_server_1_user_session_key = False;
1505 ntlm_server_1_lm_session_key = False;
1506 x_fprintf(x_stdout, ".\n");
1513 /* Indicates a base64 encoded structure */
1514 parameter = strstr_m(request, ":: ");
1516 parameter = strstr_m(request, ": ");
1519 DEBUG(0, ("Parameter not found!\n"));
1520 x_fprintf(x_stdout, "Error: Parameter not found!\n.\n");
1537 base64_decode_inplace(parameter);
1540 if (strequal(request, "LANMAN-Challenge")) {
1541 challenge = strhex_to_data_blob(NULL, parameter);
1542 if (challenge.length != 8) {
1543 x_fprintf(x_stdout, "Error: hex decode of %s failed! (got %d bytes, expected 8)\n.\n",
1545 (int)challenge.length);
1546 challenge = data_blob(NULL, 0);
1548 } else if (strequal(request, "NT-Response")) {
1549 nt_response = strhex_to_data_blob(NULL, parameter);
1550 if (nt_response.length < 24) {
1551 x_fprintf(x_stdout, "Error: hex decode of %s failed! (only got %d bytes, needed at least 24)\n.\n",
1553 (int)nt_response.length);
1554 nt_response = data_blob(NULL, 0);
1556 } else if (strequal(request, "LANMAN-Response")) {
1557 lm_response = strhex_to_data_blob(NULL, parameter);
1558 if (lm_response.length != 24) {
1559 x_fprintf(x_stdout, "Error: hex decode of %s failed! (got %d bytes, expected 24)\n.\n",
1561 (int)lm_response.length);
1562 lm_response = data_blob(NULL, 0);
1564 } else if (strequal(request, "Password")) {
1565 plaintext_password = smb_xstrdup(parameter);
1566 } else if (strequal(request, "NT-Domain")) {
1567 domain = smb_xstrdup(parameter);
1568 } else if (strequal(request, "Username")) {
1569 username = smb_xstrdup(parameter);
1570 } else if (strequal(request, "Full-Username")) {
1571 full_username = smb_xstrdup(parameter);
1572 } else if (strequal(request, "Request-User-Session-Key")) {
1573 ntlm_server_1_user_session_key = strequal(parameter, "Yes");
1574 } else if (strequal(request, "Request-LanMan-Session-Key")) {
1575 ntlm_server_1_lm_session_key = strequal(parameter, "Yes");
1577 x_fprintf(x_stdout, "Error: Unknown request %s\n.\n", request);
1581 static void manage_squid_request(enum stdio_helper_mode helper_mode, stdio_helper_function fn)
1583 char buf[SQUID_BUFFER_SIZE+1];
1588 /* this is not a typo - x_fgets doesn't work too well under squid */
1589 if (fgets(buf, sizeof(buf)-1, stdin) == NULL) {
1590 if (ferror(stdin)) {
1591 DEBUG(1, ("fgets() failed! dying..... errno=%d (%s)\n", ferror(stdin),
1592 strerror(ferror(stdin))));
1594 exit(1); /* BIIG buffer */
1599 c=memchr(buf,'\n',sizeof(buf)-1);
1608 DEBUG(2, ("Oversized message\n"));
1609 x_fprintf(x_stderr, "ERR\n");
1614 DEBUG(10, ("Got '%s' from squid (length: %d).\n",buf,length));
1616 if (buf[0] == '\0') {
1617 DEBUG(2, ("Invalid Request\n"));
1618 x_fprintf(x_stderr, "ERR\n");
1622 fn(helper_mode, buf, length);
1626 static void squid_stream(enum stdio_helper_mode stdio_mode, stdio_helper_function fn) {
1627 /* initialize FDescs */
1628 x_setbuf(x_stdout, NULL);
1629 x_setbuf(x_stderr, NULL);
1631 manage_squid_request(stdio_mode, fn);
1636 /* Authenticate a user with a challenge/response */
1638 static BOOL check_auth_crap(void)
1643 char user_session_key[16];
1645 char *hex_user_session_key;
1647 static uint8 zeros[16];
1649 x_setbuf(x_stdout, NULL);
1652 flags |= WBFLAG_PAM_LMKEY;
1654 if (request_user_session_key)
1655 flags |= WBFLAG_PAM_USER_SESSION_KEY;
1657 flags |= WBFLAG_PAM_NT_STATUS_SQUASH;
1659 nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
1665 (unsigned char *)lm_key,
1666 (unsigned char *)user_session_key,
1667 &error_string, NULL);
1669 if (!NT_STATUS_IS_OK(nt_status)) {
1670 x_fprintf(x_stdout, "%s (0x%x)\n",
1672 NT_STATUS_V(nt_status));
1673 SAFE_FREE(error_string);
1678 && (memcmp(zeros, lm_key,
1679 sizeof(lm_key)) != 0)) {
1680 hex_lm_key = hex_encode(NULL, (const unsigned char *)lm_key,
1682 x_fprintf(x_stdout, "LM_KEY: %s\n", hex_lm_key);
1683 talloc_free(hex_lm_key);
1685 if (request_user_session_key
1686 && (memcmp(zeros, user_session_key,
1687 sizeof(user_session_key)) != 0)) {
1688 hex_user_session_key = hex_encode(NULL, (const unsigned char *)user_session_key,
1689 sizeof(user_session_key));
1690 x_fprintf(x_stdout, "NT_KEY: %s\n", hex_user_session_key);
1691 talloc_free(hex_user_session_key);
1700 OPT_USERNAME = 1000,
1709 OPT_USER_SESSION_KEY,
1711 OPT_REQUIRE_MEMBERSHIP
1714 int main(int argc, const char **argv)
1717 static const char *helper_protocol;
1718 static int diagnostics;
1720 static const char *hex_challenge;
1721 static const char *hex_lm_response;
1722 static const char *hex_nt_response;
1726 /* NOTE: DO NOT change this interface without considering the implications!
1727 This is an external interface, which other programs will use to interact
1731 /* We do not use single-letter command abbreviations, because they harm future
1732 interface stability. */
1734 struct poptOption long_options[] = {
1736 { "helper-protocol", 0, POPT_ARG_STRING, &helper_protocol, OPT_DOMAIN, "operate as a stdio-based helper", "helper protocol to use"},
1737 { "username", 0, POPT_ARG_STRING, &opt_username, OPT_USERNAME, "username"},
1738 { "domain", 0, POPT_ARG_STRING, &opt_domain, OPT_DOMAIN, "domain name"},
1739 { "workstation", 0, POPT_ARG_STRING, &opt_workstation, OPT_WORKSTATION, "workstation"},
1740 { "challenge", 0, POPT_ARG_STRING, &hex_challenge, OPT_CHALLENGE, "challenge (HEX encoded)"},
1741 { "lm-response", 0, POPT_ARG_STRING, &hex_lm_response, OPT_LM, "LM Response to the challenge (HEX encoded)"},
1742 { "nt-response", 0, POPT_ARG_STRING, &hex_nt_response, OPT_NT, "NT or NTLMv2 Response to the challenge (HEX encoded)"},
1743 { "password", 0, POPT_ARG_STRING, &opt_password, OPT_PASSWORD, "User's plaintext password"},
1744 { "request-lm-key", 0, POPT_ARG_NONE, &request_lm_key, OPT_LM_KEY, "Retrieve LM session key"},
1745 { "request-nt-key", 0, POPT_ARG_NONE, &request_user_session_key, OPT_USER_SESSION_KEY, "Retrieve User (NT) session key"},
1746 { "diagnostics", 0, POPT_ARG_NONE, &diagnostics, OPT_DIAGNOSTICS, "Perform diagnostics on the authentictaion chain"},
1747 { "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" },
1752 /* Samba client initialisation */
1756 /* Samba client initialisation */
1758 if (!lp_load(dyn_CONFIGFILE, True, False, False)) {
1759 d_fprintf(stderr, "ntlm_auth: error opening config file %s. Error was %s\n",
1760 dyn_CONFIGFILE, strerror(errno));
1766 pc = poptGetContext("ntlm_auth", argc, argv, long_options, 0);
1768 /* Parse command line options */
1771 poptPrintHelp(pc, stderr, 0);
1775 pc = poptGetContext(NULL, argc, (const char **)argv, long_options,
1776 POPT_CONTEXT_KEEP_FIRST);
1778 while((opt = poptGetNextOpt(pc)) != -1) {
1781 opt_challenge = strhex_to_data_blob(NULL, hex_challenge);
1782 if (opt_challenge.length != 8) {
1783 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
1785 (int)opt_challenge.length);
1790 opt_lm_response = strhex_to_data_blob(NULL, hex_lm_response);
1791 if (opt_lm_response.length != 24) {
1792 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
1794 (int)opt_lm_response.length);
1800 opt_nt_response = strhex_to_data_blob(NULL, hex_nt_response);
1801 if (opt_nt_response.length < 24) {
1802 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
1804 (int)opt_nt_response.length);
1809 case OPT_REQUIRE_MEMBERSHIP:
1810 if (StrnCaseCmp("S-", require_membership_of, 2) == 0) {
1811 require_membership_of_sid = require_membership_of;
1817 if (helper_protocol) {
1819 for (i=0; i<NUM_HELPER_MODES; i++) {
1820 if (strcmp(helper_protocol, stdio_helper_protocols[i].name) == 0) {
1821 squid_stream(stdio_helper_protocols[i].mode, stdio_helper_protocols[i].fn);
1825 x_fprintf(x_stderr, "unknown helper protocol [%s]\n\nValid helper protools:\n\n", helper_protocol);
1827 for (i=0; i<NUM_HELPER_MODES; i++) {
1828 x_fprintf(x_stderr, "%s\n", stdio_helper_protocols[i].name);
1834 if (!opt_username) {
1835 x_fprintf(x_stderr, "username must be specified!\n\n");
1836 poptPrintHelp(pc, stderr, 0);
1840 if (opt_domain == NULL) {
1841 opt_domain = get_winbind_domain();
1844 if (opt_workstation == NULL) {
1845 opt_workstation = "";
1848 if (opt_challenge.length) {
1849 if (!check_auth_crap()) {
1855 if (!opt_password) {
1856 opt_password = getpass("password: ");
1860 if (!diagnose_ntlm_auth()) {
1866 fstr_sprintf(user, "%s%c%s", opt_domain, winbind_separator(), opt_username);
1867 if (!check_plaintext_auth(user, opt_password, True)) {
1874 poptFreeContext(pc);