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s3:smbd: make typedef write_cache private to fileio.c
[Samba/gebeck_regimport.git] / source3 / libsmb / libsmb_server.c
blobc7ec142ffca0f4ee1fff47434bbd81b3ec68834e
1 /*
2 Unix SMB/Netbios implementation.
3 SMB client library implementation
4 Copyright (C) Andrew Tridgell 1998
5 Copyright (C) Richard Sharpe 2000, 2002
6 Copyright (C) John Terpstra 2000
7 Copyright (C) Tom Jansen (Ninja ISD) 2002
8 Copyright (C) Derrell Lipman 2003-2008
9 Copyright (C) Jeremy Allison 2007, 2008
10 Copyright (C) SATOH Fumiyasu <fumiyas@osstech.co.jp> 2009.
11
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 3 of the License, or
15 (at your option) any later version.
16
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
21
22 You should have received a copy of the GNU General Public License
23 along with this program. If not, see <http://www.gnu.org/licenses/>.
24 */
25
26 #include "includes.h"
27 #include "libsmb/libsmb.h"
28 #include "libsmbclient.h"
29 #include "libsmb_internal.h"
30 #include "../librpc/gen_ndr/ndr_lsa.h"
31 #include "rpc_client/cli_pipe.h"
32 #include "rpc_client/cli_lsarpc.h"
33 #include "libcli/security/security.h"
34 #include "libsmb/nmblib.h"
35 #include "../libcli/smb/smbXcli_base.h"
36
37 /*
38 * Check a server for being alive and well.
39 * returns 0 if the server is in shape. Returns 1 on error
40 *
41 * Also useable outside libsmbclient to enable external cache
42 * to do some checks too.
43 */
44 int
45 SMBC_check_server(SMBCCTX * context,
46 SMBCSRV * server)
47 {
48 if (!cli_state_is_connected(server->cli)) {
49 return 1;
50 }
51
52 return 0;
53 }
54
55 /*
56 * Remove a server from the cached server list it's unused.
57 * On success, 0 is returned. 1 is returned if the server could not be removed.
58 *
59 * Also useable outside libsmbclient
60 */
61 int
62 SMBC_remove_unused_server(SMBCCTX * context,
63 SMBCSRV * srv)
64 {
65 SMBCFILE * file;
66
67 /* are we being fooled ? */
68 if (!context || !context->internal->initialized || !srv) {
69 return 1;
70 }
71
72 /* Check all open files/directories for a relation with this server */
73 for (file = context->internal->files; file; file = file->next) {
74 if (file->srv == srv) {
75 /* Still used */
76 DEBUG(3, ("smbc_remove_usused_server: "
77 "%p still used by %p.\n",
78 srv, file));
79 return 1;
80 }
81 }
82
83 DLIST_REMOVE(context->internal->servers, srv);
84
85 cli_shutdown(srv->cli);
86 srv->cli = NULL;
87
88 DEBUG(3, ("smbc_remove_usused_server: %p removed.\n", srv));
89
90 smbc_getFunctionRemoveCachedServer(context)(context, srv);
91
92 SAFE_FREE(srv);
93 return 0;
94 }
95
96 /****************************************************************
97 * Call the auth_fn with fixed size (fstring) buffers.
98 ***************************************************************/
99 void
100 SMBC_call_auth_fn(TALLOC_CTX *ctx,
101 SMBCCTX *context,
102 const char *server,
103 const char *share,
104 char **pp_workgroup,
105 char **pp_username,
106 char **pp_password)
107 {
108 fstring workgroup;
109 fstring username;
110 fstring password;
111 smbc_get_auth_data_with_context_fn auth_with_context_fn;
112
113 strlcpy(workgroup, *pp_workgroup, sizeof(workgroup));
114 strlcpy(username, *pp_username, sizeof(username));
115 strlcpy(password, *pp_password, sizeof(password));
116
117 /* See if there's an authentication with context function provided */
118 auth_with_context_fn = smbc_getFunctionAuthDataWithContext(context);
119 if (auth_with_context_fn)
120 {
121 (* auth_with_context_fn)(context,
122 server, share,
123 workgroup, sizeof(workgroup),
124 username, sizeof(username),
125 password, sizeof(password));
126 }
127 else
128 {
129 smbc_getFunctionAuthData(context)(server, share,
130 workgroup, sizeof(workgroup),
131 username, sizeof(username),
132 password, sizeof(password));
133 }
134
135 TALLOC_FREE(*pp_workgroup);
136 TALLOC_FREE(*pp_username);
137 TALLOC_FREE(*pp_password);
138
139 *pp_workgroup = talloc_strdup(ctx, workgroup);
140 *pp_username = talloc_strdup(ctx, username);
141 *pp_password = talloc_strdup(ctx, password);
142 }
143
144
145 void
146 SMBC_get_auth_data(const char *server, const char *share,
147 char *workgroup_buf, int workgroup_buf_len,
148 char *username_buf, int username_buf_len,
149 char *password_buf, int password_buf_len)
150 {
151 /* Default function just uses provided data. Nothing to do. */
152 }
153
154
155
156 SMBCSRV *
157 SMBC_find_server(TALLOC_CTX *ctx,
158 SMBCCTX *context,
159 const char *server,
160 const char *share,
161 char **pp_workgroup,
162 char **pp_username,
163 char **pp_password)
164 {
165 SMBCSRV *srv;
166 int auth_called = 0;
167
168 if (!pp_workgroup || !pp_username || !pp_password) {
169 return NULL;
170 }
171
172 check_server_cache:
173
174 srv = smbc_getFunctionGetCachedServer(context)(context,
175 server, share,
176 *pp_workgroup,
177 *pp_username);
178
179 if (!auth_called && !srv && (!*pp_username || !(*pp_username)[0] ||
180 !*pp_password || !(*pp_password)[0])) {
181 SMBC_call_auth_fn(ctx, context, server, share,
182 pp_workgroup, pp_username, pp_password);
183
184 /*
185 * However, smbc_auth_fn may have picked up info relating to
186 * an existing connection, so try for an existing connection
187 * again ...
188 */
189 auth_called = 1;
190 goto check_server_cache;
191
192 }
193
194 if (srv) {
195 if (smbc_getFunctionCheckServer(context)(context, srv)) {
196 /*
197 * This server is no good anymore
198 * Try to remove it and check for more possible
199 * servers in the cache
200 */
201 if (smbc_getFunctionRemoveUnusedServer(context)(context,
202 srv)) {
203 /*
204 * We could not remove the server completely,
205 * remove it from the cache so we will not get
206 * it again. It will be removed when the last
207 * file/dir is closed.
208 */
209 smbc_getFunctionRemoveCachedServer(context)(context,
210 srv);
211 }
212
213 /*
214 * Maybe there are more cached connections to this
215 * server
216 */
217 goto check_server_cache;
218 }
219
220 return srv;
221 }
222
223 return NULL;
224 }
225
226 /*
227 * Connect to a server, possibly on an existing connection
228 *
229 * Here, what we want to do is: If the server and username
230 * match an existing connection, reuse that, otherwise, establish a
231 * new connection.
232 *
233 * If we have to create a new connection, call the auth_fn to get the
234 * info we need, unless the username and password were passed in.
235 */
236
237 static SMBCSRV *
238 SMBC_server_internal(TALLOC_CTX *ctx,
239 SMBCCTX *context,
240 bool connect_if_not_found,
241 const char *server,
242 const char *share,
243 char **pp_workgroup,
244 char **pp_username,
245 char **pp_password,
246 bool *in_cache)
247 {
248 SMBCSRV *srv=NULL;
249 char *workgroup = NULL;
250 struct cli_state *c = NULL;
251 const char *server_n = server;
252 int is_ipc = (share != NULL && strcmp(share, "IPC$") == 0);
253 uint32 fs_attrs = 0;
254 const char *username_used;
255 NTSTATUS status;
256 char *newserver, *newshare;
257 int flags = 0;
258
259 ZERO_STRUCT(c);
260 *in_cache = false;
261
262 if (server[0] == 0) {
263 errno = EPERM;
264 return NULL;
265 }
266
267 /* Look for a cached connection */
268 srv = SMBC_find_server(ctx, context, server, share,
269 pp_workgroup, pp_username, pp_password);
270
271 /*
272 * If we found a connection and we're only allowed one share per
273 * server...
274 */
275 if (srv &&
276 *share != '\0' &&
277 smbc_getOptionOneSharePerServer(context)) {
278
279 /*
280 * ... then if there's no current connection to the share,
281 * connect to it. SMBC_find_server(), or rather the function
282 * pointed to by context->get_cached_srv_fn which
283 * was called by SMBC_find_server(), will have issued a tree
284 * disconnect if the requested share is not the same as the
285 * one that was already connected.
286 */
287
288 /*
289 * Use srv->cli->desthost and srv->cli->share instead of
290 * server and share below to connect to the actual share,
291 * i.e., a normal share or a referred share from
292 * 'msdfs proxy' share.
293 */
294 if (!cli_state_has_tcon(srv->cli)) {
295 /* Ensure we have accurate auth info */
296 SMBC_call_auth_fn(ctx, context,
297 smbXcli_conn_remote_name(srv->cli->conn),
298 srv->cli->share,
299 pp_workgroup,
300 pp_username,
301 pp_password);
302
303 if (!*pp_workgroup || !*pp_username || !*pp_password) {
304 errno = ENOMEM;
305 cli_shutdown(srv->cli);
306 srv->cli = NULL;
307 smbc_getFunctionRemoveCachedServer(context)(context,
308 srv);
309 return NULL;
310 }
311
312 /*
313 * We don't need to renegotiate encryption
314 * here as the encryption context is not per
315 * tid.
316 */
317
318 status = cli_tree_connect(srv->cli,
319 srv->cli->share,
320 "?????",
321 *pp_password,
322 strlen(*pp_password)+1);
323 if (!NT_STATUS_IS_OK(status)) {
324 errno = map_errno_from_nt_status(status);
325 cli_shutdown(srv->cli);
326 srv->cli = NULL;
327 smbc_getFunctionRemoveCachedServer(context)(context,
328 srv);
329 srv = NULL;
330 }
331
332 /* Determine if this share supports case sensitivity */
333 if (is_ipc) {
334 DEBUG(4,
335 ("IPC$ so ignore case sensitivity\n"));
336 status = NT_STATUS_OK;
337 } else {
338 status = cli_get_fs_attr_info(c, &fs_attrs);
339 }
340
341 if (!NT_STATUS_IS_OK(status)) {
342 DEBUG(4, ("Could not retrieve "
343 "case sensitivity flag: %s.\n",
344 nt_errstr(status)));
345
346 /*
347 * We can't determine the case sensitivity of
348 * the share. We have no choice but to use the
349 * user-specified case sensitivity setting.
350 */
351 if (smbc_getOptionCaseSensitive(context)) {
352 cli_set_case_sensitive(c, True);
353 } else {
354 cli_set_case_sensitive(c, False);
355 }
356 } else if (!is_ipc) {
357 DEBUG(4,
358 ("Case sensitive: %s\n",
359 (fs_attrs & FILE_CASE_SENSITIVE_SEARCH
360 ? "True"
361 : "False")));
362 cli_set_case_sensitive(
363 c,
364 (fs_attrs & FILE_CASE_SENSITIVE_SEARCH
365 ? True
366 : False));
367 }
368
369 /*
370 * Regenerate the dev value since it's based on both
371 * server and share
372 */
373 if (srv) {
374 const char *remote_name =
375 smbXcli_conn_remote_name(srv->cli->conn);
376
377 srv->dev = (dev_t)(str_checksum(remote_name) ^
378 str_checksum(srv->cli->share));
379 }
380 }
381 }
382
383 /* If we have a connection... */
384 if (srv) {
385
386 /* ... then we're done here. Give 'em what they came for. */
387 *in_cache = true;
388 goto done;
389 }
390
391 /* If we're not asked to connect when a connection doesn't exist... */
392 if (! connect_if_not_found) {
393 /* ... then we're done here. */
394 return NULL;
395 }
396
397 if (!*pp_workgroup || !*pp_username || !*pp_password) {
398 errno = ENOMEM;
399 return NULL;
400 }
401
402 DEBUG(4,("SMBC_server: server_n=[%s] server=[%s]\n", server_n, server));
403
404 DEBUG(4,(" -> server_n=[%s] server=[%s]\n", server_n, server));
405
406 status = NT_STATUS_UNSUCCESSFUL;
407
408 if (smbc_getOptionUseKerberos(context)) {
409 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
410 }
411
412 if (smbc_getOptionFallbackAfterKerberos(context)) {
413 flags |= CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
414 }
415
416 if (smbc_getOptionUseCCache(context)) {
417 flags |= CLI_FULL_CONNECTION_USE_CCACHE;
418 }
419
420 if (share == NULL || *share == '\0' || is_ipc) {
421 /*
422 * Try 139 first for IPC$
423 */
424 status = cli_connect_nb(server_n, NULL, NBT_SMB_PORT, 0x20,
425 smbc_getNetbiosName(context),
426 SMB_SIGNING_DEFAULT, flags, &c);
427 }
428
429 if (!NT_STATUS_IS_OK(status)) {
430 /*
431 * No IPC$ or 139 did not work
432 */
433 status = cli_connect_nb(server_n, NULL, 0, 0x20,
434 smbc_getNetbiosName(context),
435 SMB_SIGNING_DEFAULT, flags, &c);
436 }
437
438 if (!NT_STATUS_IS_OK(status)) {
439 errno = map_errno_from_nt_status(status);
440 return NULL;
441 }
442
443 cli_set_timeout(c, smbc_getTimeout(context));
444
445 status = smbXcli_negprot(c->conn, c->timeout, PROTOCOL_CORE,
446 PROTOCOL_NT1);
447
448 if (!NT_STATUS_IS_OK(status)) {
449 cli_shutdown(c);
450 errno = ETIMEDOUT;
451 return NULL;
452 }
453
454 username_used = *pp_username;
455
456 if (!NT_STATUS_IS_OK(cli_session_setup(c, username_used,
457 *pp_password,
458 strlen(*pp_password),
459 *pp_password,
460 strlen(*pp_password),
461 *pp_workgroup))) {
462
463 /* Failed. Try an anonymous login, if allowed by flags. */
464 username_used = "";
465
466 if (smbc_getOptionNoAutoAnonymousLogin(context) ||
467 !NT_STATUS_IS_OK(cli_session_setup(c, username_used,
468 *pp_password, 1,
469 *pp_password, 0,
470 *pp_workgroup))) {
471
472 cli_shutdown(c);
473 errno = EPERM;
474 return NULL;
475 }
476 }
477
478 status = cli_init_creds(c, username_used,
479 *pp_workgroup, *pp_password);
480 if (!NT_STATUS_IS_OK(status)) {
481 errno = map_errno_from_nt_status(status);
482 cli_shutdown(c);
483 return NULL;
484 }
485
486 DEBUG(4,(" session setup ok\n"));
487
488 /* here's the fun part....to support 'msdfs proxy' shares
489 (on Samba or windows) we have to issues a TRANS_GET_DFS_REFERRAL
490 here before trying to connect to the original share.
491 cli_check_msdfs_proxy() will fail if it is a normal share. */
492
493 if ((smb1cli_conn_capabilities(c->conn) & CAP_DFS) &&
494 cli_check_msdfs_proxy(ctx, c, share,
495 &newserver, &newshare,
496 /* FIXME: cli_check_msdfs_proxy() does
497 not support smbc_smb_encrypt_level type */
498 context->internal->smb_encryption_level ?
499 true : false,
500 *pp_username,
501 *pp_password,
502 *pp_workgroup)) {
503 cli_shutdown(c);
504 srv = SMBC_server_internal(ctx, context, connect_if_not_found,
505 newserver, newshare, pp_workgroup,
506 pp_username, pp_password, in_cache);
507 TALLOC_FREE(newserver);
508 TALLOC_FREE(newshare);
509 return srv;
510 }
511
512 /* must be a normal share */
513
514 status = cli_tree_connect(c, share, "?????", *pp_password,
515 strlen(*pp_password)+1);
516 if (!NT_STATUS_IS_OK(status)) {
517 errno = map_errno_from_nt_status(status);
518 cli_shutdown(c);
519 return NULL;
520 }
521
522 DEBUG(4,(" tconx ok\n"));
523
524 /* Determine if this share supports case sensitivity */
525 if (is_ipc) {
526 DEBUG(4, ("IPC$ so ignore case sensitivity\n"));
527 status = NT_STATUS_OK;
528 } else {
529 status = cli_get_fs_attr_info(c, &fs_attrs);
530 }
531
532 if (!NT_STATUS_IS_OK(status)) {
533 DEBUG(4, ("Could not retrieve case sensitivity flag: %s.\n",
534 nt_errstr(status)));
535
536 /*
537 * We can't determine the case sensitivity of the share. We
538 * have no choice but to use the user-specified case
539 * sensitivity setting.
540 */
541 if (smbc_getOptionCaseSensitive(context)) {
542 cli_set_case_sensitive(c, True);
543 } else {
544 cli_set_case_sensitive(c, False);
545 }
546 } else if (!is_ipc) {
547 DEBUG(4, ("Case sensitive: %s\n",
548 (fs_attrs & FILE_CASE_SENSITIVE_SEARCH
549 ? "True"
550 : "False")));
551 cli_set_case_sensitive(c,
552 (fs_attrs & FILE_CASE_SENSITIVE_SEARCH
553 ? True
554 : False));
555 }
556
557 if (context->internal->smb_encryption_level) {
558 /* Attempt UNIX smb encryption. */
559 if (!NT_STATUS_IS_OK(cli_force_encryption(c,
560 username_used,
561 *pp_password,
562 *pp_workgroup))) {
563
564 /*
565 * context->smb_encryption_level == 1
566 * means don't fail if encryption can't be negotiated,
567 * == 2 means fail if encryption can't be negotiated.
568 */
569
570 DEBUG(4,(" SMB encrypt failed\n"));
571
572 if (context->internal->smb_encryption_level == 2) {
573 cli_shutdown(c);
574 errno = EPERM;
575 return NULL;
576 }
577 }
578 DEBUG(4,(" SMB encrypt ok\n"));
579 }
580
581 /*
582 * Ok, we have got a nice connection
583 * Let's allocate a server structure.
584 */
585
586 srv = SMB_MALLOC_P(SMBCSRV);
587 if (!srv) {
588 cli_shutdown(c);
589 errno = ENOMEM;
590 return NULL;
591 }
592
593 ZERO_STRUCTP(srv);
594 srv->cli = c;
595 srv->dev = (dev_t)(str_checksum(server) ^ str_checksum(share));
596 srv->no_pathinfo = False;
597 srv->no_pathinfo2 = False;
598 srv->no_nt_session = False;
599
600 done:
601 if (!pp_workgroup || !*pp_workgroup || !**pp_workgroup) {
602 workgroup = talloc_strdup(ctx, smbc_getWorkgroup(context));
603 } else {
604 workgroup = *pp_workgroup;
605 }
606 if(!workgroup) {
607 if (c != NULL) {
608 cli_shutdown(c);
609 }
610 SAFE_FREE(srv);
611 return NULL;
612 }
613
614 /* set the credentials to make DFS work */
615 smbc_set_credentials_with_fallback(context,
616 workgroup,
617 *pp_username,
618 *pp_password);
619
620 return srv;
621 }
622
623 SMBCSRV *
624 SMBC_server(TALLOC_CTX *ctx,
625 SMBCCTX *context,
626 bool connect_if_not_found,
627 const char *server,
628 const char *share,
629 char **pp_workgroup,
630 char **pp_username,
631 char **pp_password)
632 {
633 SMBCSRV *srv=NULL;
634 bool in_cache = false;
635
636 srv = SMBC_server_internal(ctx, context, connect_if_not_found,
637 server, share, pp_workgroup,
638 pp_username, pp_password, &in_cache);
639
640 if (!srv) {
641 return NULL;
642 }
643 if (in_cache) {
644 return srv;
645 }
646
647 /* Now add it to the cache (internal or external) */
648 /* Let the cache function set errno if it wants to */
649 errno = 0;
650 if (smbc_getFunctionAddCachedServer(context)(context, srv,
651 server, share,
652 *pp_workgroup,
653 *pp_username)) {
654 int saved_errno = errno;
655 DEBUG(3, (" Failed to add server to cache\n"));
656 errno = saved_errno;
657 if (errno == 0) {
658 errno = ENOMEM;
659 }
660 SAFE_FREE(srv);
661 return NULL;
662 }
663
664 DEBUG(2, ("Server connect ok: //%s/%s: %p\n",
665 server, share, srv));
666
667 DLIST_ADD(context->internal->servers, srv);
668 return srv;
669 }
670
671 /*
672 * Connect to a server for getting/setting attributes, possibly on an existing
673 * connection. This works similarly to SMBC_server().
674 */
675 SMBCSRV *
676 SMBC_attr_server(TALLOC_CTX *ctx,
677 SMBCCTX *context,
678 const char *server,
679 const char *share,
680 char **pp_workgroup,
681 char **pp_username,
682 char **pp_password)
683 {
684 int flags;
685 struct cli_state *ipc_cli = NULL;
686 struct rpc_pipe_client *pipe_hnd = NULL;
687 NTSTATUS nt_status;
688 SMBCSRV *srv=NULL;
689 SMBCSRV *ipc_srv=NULL;
690
691 /*
692 * Use srv->cli->desthost and srv->cli->share instead of
693 * server and share below to connect to the actual share,
694 * i.e., a normal share or a referred share from
695 * 'msdfs proxy' share.
696 */
697 srv = SMBC_server(ctx, context, true, server, share,
698 pp_workgroup, pp_username, pp_password);
699 if (!srv) {
700 return NULL;
701 }
702 server = smbXcli_conn_remote_name(srv->cli->conn);
703 share = srv->cli->share;
704
705 /*
706 * See if we've already created this special connection. Reference
707 * our "special" share name '*IPC$', which is an impossible real share
708 * name due to the leading asterisk.
709 */
710 ipc_srv = SMBC_find_server(ctx, context, server, "*IPC$",
711 pp_workgroup, pp_username, pp_password);
712 if (!ipc_srv) {
713
714 /* We didn't find a cached connection. Get the password */
715 if (!*pp_password || (*pp_password)[0] == '\0') {
716 /* ... then retrieve it now. */
717 SMBC_call_auth_fn(ctx, context, server, share,
718 pp_workgroup,
719 pp_username,
720 pp_password);
721 if (!*pp_workgroup || !*pp_username || !*pp_password) {
722 errno = ENOMEM;
723 return NULL;
724 }
725 }
726
727 flags = 0;
728 if (smbc_getOptionUseKerberos(context)) {
729 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
730 }
731 if (smbc_getOptionUseCCache(context)) {
732 flags |= CLI_FULL_CONNECTION_USE_CCACHE;
733 }
734
735 nt_status = cli_full_connection(&ipc_cli,
736 lp_netbios_name(), server,
737 NULL, 0, "IPC$", "?????",
738 *pp_username,
739 *pp_workgroup,
740 *pp_password,
741 flags,
742 SMB_SIGNING_DEFAULT);
743 if (! NT_STATUS_IS_OK(nt_status)) {
744 DEBUG(1,("cli_full_connection failed! (%s)\n",
745 nt_errstr(nt_status)));
746 errno = ENOTSUP;
747 return NULL;
748 }
749
750 if (context->internal->smb_encryption_level) {
751 /* Attempt UNIX smb encryption. */
752 if (!NT_STATUS_IS_OK(cli_force_encryption(ipc_cli,
753 *pp_username,
754 *pp_password,
755 *pp_workgroup))) {
756
757 /*
758 * context->smb_encryption_level ==
759 * 1 means don't fail if encryption can't be
760 * negotiated, == 2 means fail if encryption
761 * can't be negotiated.
762 */
763
764 DEBUG(4,(" SMB encrypt failed on IPC$\n"));
765
766 if (context->internal->smb_encryption_level == 2) {
767 cli_shutdown(ipc_cli);
768 errno = EPERM;
769 return NULL;
770 }
771 }
772 DEBUG(4,(" SMB encrypt ok on IPC$\n"));
773 }
774
775 ipc_srv = SMB_MALLOC_P(SMBCSRV);
776 if (!ipc_srv) {
777 errno = ENOMEM;
778 cli_shutdown(ipc_cli);
779 return NULL;
780 }
781
782 ZERO_STRUCTP(ipc_srv);
783 ipc_srv->cli = ipc_cli;
784
785 nt_status = cli_rpc_pipe_open_noauth(
786 ipc_srv->cli, &ndr_table_lsarpc.syntax_id, &pipe_hnd);
787 if (!NT_STATUS_IS_OK(nt_status)) {
788 DEBUG(1, ("cli_nt_session_open fail!\n"));
789 errno = ENOTSUP;
790 cli_shutdown(ipc_srv->cli);
791 free(ipc_srv);
792 return NULL;
793 }
794
795 /*
796 * Some systems don't support
797 * SEC_FLAG_MAXIMUM_ALLOWED, but NT sends 0x2000000
798 * so we might as well do it too.
799 */
800
801 nt_status = rpccli_lsa_open_policy(
802 pipe_hnd,
803 talloc_tos(),
804 True,
805 GENERIC_EXECUTE_ACCESS,
806 &ipc_srv->pol);
807
808 if (!NT_STATUS_IS_OK(nt_status)) {
809 errno = SMBC_errno(context, ipc_srv->cli);
810 cli_shutdown(ipc_srv->cli);
811 return NULL;
812 }
813
814 /* now add it to the cache (internal or external) */
815
816 errno = 0; /* let cache function set errno if it likes */
817 if (smbc_getFunctionAddCachedServer(context)(context, ipc_srv,
818 server,
819 "*IPC$",
820 *pp_workgroup,
821 *pp_username)) {
822 DEBUG(3, (" Failed to add server to cache\n"));
823 if (errno == 0) {
824 errno = ENOMEM;
825 }
826 cli_shutdown(ipc_srv->cli);
827 free(ipc_srv);
828 return NULL;
829 }
830
831 DLIST_ADD(context->internal->servers, ipc_srv);
832 }
833
834 return ipc_srv;
835 }
reg import