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Remove some unused variables.
[Samba/gebeck_regimport.git] / source3 / libsmb / libsmb_server.c
blob858622f56560843dcb3aa79fc43d6f6b8f1d4ecd
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 static 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 != NULL && *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 (smbc_getOptionUseNTHash(context)) {
421 flags |= CLI_FULL_CONNECTION_USE_NT_HASH;
422 }
423
424 if (share == NULL || *share == '\0' || is_ipc) {
425 /*
426 * Try 139 first for IPC$
427 */
428 status = cli_connect_nb(server_n, NULL, NBT_SMB_PORT, 0x20,
429 smbc_getNetbiosName(context),
430 SMB_SIGNING_DEFAULT, flags, &c);
431 }
432
433 if (!NT_STATUS_IS_OK(status)) {
434 /*
435 * No IPC$ or 139 did not work
436 */
437 status = cli_connect_nb(server_n, NULL, 0, 0x20,
438 smbc_getNetbiosName(context),
439 SMB_SIGNING_DEFAULT, flags, &c);
440 }
441
442 if (!NT_STATUS_IS_OK(status)) {
443 errno = map_errno_from_nt_status(status);
444 return NULL;
445 }
446
447 cli_set_timeout(c, smbc_getTimeout(context));
448
449 status = smbXcli_negprot(c->conn, c->timeout, PROTOCOL_CORE,
450 PROTOCOL_NT1);
451
452 if (!NT_STATUS_IS_OK(status)) {
453 cli_shutdown(c);
454 errno = ETIMEDOUT;
455 return NULL;
456 }
457
458 username_used = *pp_username;
459
460 if (!NT_STATUS_IS_OK(cli_session_setup(c, username_used,
461 *pp_password,
462 strlen(*pp_password),
463 *pp_password,
464 strlen(*pp_password),
465 *pp_workgroup))) {
466
467 /* Failed. Try an anonymous login, if allowed by flags. */
468 username_used = "";
469
470 if (smbc_getOptionNoAutoAnonymousLogin(context) ||
471 !NT_STATUS_IS_OK(cli_session_setup(c, username_used,
472 *pp_password, 1,
473 *pp_password, 0,
474 *pp_workgroup))) {
475
476 cli_shutdown(c);
477 errno = EPERM;
478 return NULL;
479 }
480 }
481
482 status = cli_init_creds(c, username_used,
483 *pp_workgroup, *pp_password);
484 if (!NT_STATUS_IS_OK(status)) {
485 errno = map_errno_from_nt_status(status);
486 cli_shutdown(c);
487 return NULL;
488 }
489
490 DEBUG(4,(" session setup ok\n"));
491
492 /* here's the fun part....to support 'msdfs proxy' shares
493 (on Samba or windows) we have to issues a TRANS_GET_DFS_REFERRAL
494 here before trying to connect to the original share.
495 cli_check_msdfs_proxy() will fail if it is a normal share. */
496
497 if ((smb1cli_conn_capabilities(c->conn) & CAP_DFS) &&
498 cli_check_msdfs_proxy(ctx, c, share,
499 &newserver, &newshare,
500 /* FIXME: cli_check_msdfs_proxy() does
501 not support smbc_smb_encrypt_level type */
502 context->internal->smb_encryption_level ?
503 true : false,
504 *pp_username,
505 *pp_password,
506 *pp_workgroup)) {
507 cli_shutdown(c);
508 srv = SMBC_server_internal(ctx, context, connect_if_not_found,
509 newserver, newshare, pp_workgroup,
510 pp_username, pp_password, in_cache);
511 TALLOC_FREE(newserver);
512 TALLOC_FREE(newshare);
513 return srv;
514 }
515
516 /* must be a normal share */
517
518 status = cli_tree_connect(c, share, "?????", *pp_password,
519 strlen(*pp_password)+1);
520 if (!NT_STATUS_IS_OK(status)) {
521 errno = map_errno_from_nt_status(status);
522 cli_shutdown(c);
523 return NULL;
524 }
525
526 DEBUG(4,(" tconx ok\n"));
527
528 /* Determine if this share supports case sensitivity */
529 if (is_ipc) {
530 DEBUG(4, ("IPC$ so ignore case sensitivity\n"));
531 status = NT_STATUS_OK;
532 } else {
533 status = cli_get_fs_attr_info(c, &fs_attrs);
534 }
535
536 if (!NT_STATUS_IS_OK(status)) {
537 DEBUG(4, ("Could not retrieve case sensitivity flag: %s.\n",
538 nt_errstr(status)));
539
540 /*
541 * We can't determine the case sensitivity of the share. We
542 * have no choice but to use the user-specified case
543 * sensitivity setting.
544 */
545 if (smbc_getOptionCaseSensitive(context)) {
546 cli_set_case_sensitive(c, True);
547 } else {
548 cli_set_case_sensitive(c, False);
549 }
550 } else if (!is_ipc) {
551 DEBUG(4, ("Case sensitive: %s\n",
552 (fs_attrs & FILE_CASE_SENSITIVE_SEARCH
553 ? "True"
554 : "False")));
555 cli_set_case_sensitive(c,
556 (fs_attrs & FILE_CASE_SENSITIVE_SEARCH
557 ? True
558 : False));
559 }
560
561 if (context->internal->smb_encryption_level) {
562 /* Attempt UNIX smb encryption. */
563 if (!NT_STATUS_IS_OK(cli_force_encryption(c,
564 username_used,
565 *pp_password,
566 *pp_workgroup))) {
567
568 /*
569 * context->smb_encryption_level == 1
570 * means don't fail if encryption can't be negotiated,
571 * == 2 means fail if encryption can't be negotiated.
572 */
573
574 DEBUG(4,(" SMB encrypt failed\n"));
575
576 if (context->internal->smb_encryption_level == 2) {
577 cli_shutdown(c);
578 errno = EPERM;
579 return NULL;
580 }
581 }
582 DEBUG(4,(" SMB encrypt ok\n"));
583 }
584
585 /*
586 * Ok, we have got a nice connection
587 * Let's allocate a server structure.
588 */
589
590 srv = SMB_MALLOC_P(SMBCSRV);
591 if (!srv) {
592 cli_shutdown(c);
593 errno = ENOMEM;
594 return NULL;
595 }
596
597 ZERO_STRUCTP(srv);
598 srv->cli = c;
599 srv->dev = (dev_t)(str_checksum(server) ^ str_checksum(share));
600 srv->no_pathinfo = False;
601 srv->no_pathinfo2 = False;
602 srv->no_nt_session = False;
603
604 done:
605 if (!pp_workgroup || !*pp_workgroup || !**pp_workgroup) {
606 workgroup = talloc_strdup(ctx, smbc_getWorkgroup(context));
607 } else {
608 workgroup = *pp_workgroup;
609 }
610 if(!workgroup) {
611 if (c != NULL) {
612 cli_shutdown(c);
613 }
614 SAFE_FREE(srv);
615 return NULL;
616 }
617
618 /* set the credentials to make DFS work */
619 smbc_set_credentials_with_fallback(context,
620 workgroup,
621 *pp_username,
622 *pp_password);
623
624 return srv;
625 }
626
627 SMBCSRV *
628 SMBC_server(TALLOC_CTX *ctx,
629 SMBCCTX *context,
630 bool connect_if_not_found,
631 const char *server,
632 const char *share,
633 char **pp_workgroup,
634 char **pp_username,
635 char **pp_password)
636 {
637 SMBCSRV *srv=NULL;
638 bool in_cache = false;
639
640 srv = SMBC_server_internal(ctx, context, connect_if_not_found,
641 server, share, pp_workgroup,
642 pp_username, pp_password, &in_cache);
643
644 if (!srv) {
645 return NULL;
646 }
647 if (in_cache) {
648 return srv;
649 }
650
651 /* Now add it to the cache (internal or external) */
652 /* Let the cache function set errno if it wants to */
653 errno = 0;
654 if (smbc_getFunctionAddCachedServer(context)(context, srv,
655 server, share,
656 *pp_workgroup,
657 *pp_username)) {
658 int saved_errno = errno;
659 DEBUG(3, (" Failed to add server to cache\n"));
660 errno = saved_errno;
661 if (errno == 0) {
662 errno = ENOMEM;
663 }
664 SAFE_FREE(srv);
665 return NULL;
666 }
667
668 DEBUG(2, ("Server connect ok: //%s/%s: %p\n",
669 server, share, srv));
670
671 DLIST_ADD(context->internal->servers, srv);
672 return srv;
673 }
674
675 /*
676 * Connect to a server for getting/setting attributes, possibly on an existing
677 * connection. This works similarly to SMBC_server().
678 */
679 SMBCSRV *
680 SMBC_attr_server(TALLOC_CTX *ctx,
681 SMBCCTX *context,
682 const char *server,
683 const char *share,
684 char **pp_workgroup,
685 char **pp_username,
686 char **pp_password)
687 {
688 int flags;
689 struct cli_state *ipc_cli = NULL;
690 struct rpc_pipe_client *pipe_hnd = NULL;
691 NTSTATUS nt_status;
692 SMBCSRV *srv=NULL;
693 SMBCSRV *ipc_srv=NULL;
694
695 /*
696 * Use srv->cli->desthost and srv->cli->share instead of
697 * server and share below to connect to the actual share,
698 * i.e., a normal share or a referred share from
699 * 'msdfs proxy' share.
700 */
701 srv = SMBC_server(ctx, context, true, server, share,
702 pp_workgroup, pp_username, pp_password);
703 if (!srv) {
704 return NULL;
705 }
706 server = smbXcli_conn_remote_name(srv->cli->conn);
707 share = srv->cli->share;
708
709 /*
710 * See if we've already created this special connection. Reference
711 * our "special" share name '*IPC$', which is an impossible real share
712 * name due to the leading asterisk.
713 */
714 ipc_srv = SMBC_find_server(ctx, context, server, "*IPC$",
715 pp_workgroup, pp_username, pp_password);
716 if (!ipc_srv) {
717
718 /* We didn't find a cached connection. Get the password */
719 if (!*pp_password || (*pp_password)[0] == '\0') {
720 /* ... then retrieve it now. */
721 SMBC_call_auth_fn(ctx, context, server, share,
722 pp_workgroup,
723 pp_username,
724 pp_password);
725 if (!*pp_workgroup || !*pp_username || !*pp_password) {
726 errno = ENOMEM;
727 return NULL;
728 }
729 }
730
731 flags = 0;
732 if (smbc_getOptionUseKerberos(context)) {
733 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
734 }
735 if (smbc_getOptionUseCCache(context)) {
736 flags |= CLI_FULL_CONNECTION_USE_CCACHE;
737 }
738
739 nt_status = cli_full_connection(&ipc_cli,
740 lp_netbios_name(), server,
741 NULL, 0, "IPC$", "?????",
742 *pp_username,
743 *pp_workgroup,
744 *pp_password,
745 flags,
746 SMB_SIGNING_DEFAULT);
747 if (! NT_STATUS_IS_OK(nt_status)) {
748 DEBUG(1,("cli_full_connection failed! (%s)\n",
749 nt_errstr(nt_status)));
750 errno = ENOTSUP;
751 return NULL;
752 }
753
754 if (context->internal->smb_encryption_level) {
755 /* Attempt UNIX smb encryption. */
756 if (!NT_STATUS_IS_OK(cli_force_encryption(ipc_cli,
757 *pp_username,
758 *pp_password,
759 *pp_workgroup))) {
760
761 /*
762 * context->smb_encryption_level ==
763 * 1 means don't fail if encryption can't be
764 * negotiated, == 2 means fail if encryption
765 * can't be negotiated.
766 */
767
768 DEBUG(4,(" SMB encrypt failed on IPC$\n"));
769
770 if (context->internal->smb_encryption_level == 2) {
771 cli_shutdown(ipc_cli);
772 errno = EPERM;
773 return NULL;
774 }
775 }
776 DEBUG(4,(" SMB encrypt ok on IPC$\n"));
777 }
778
779 ipc_srv = SMB_MALLOC_P(SMBCSRV);
780 if (!ipc_srv) {
781 errno = ENOMEM;
782 cli_shutdown(ipc_cli);
783 return NULL;
784 }
785
786 ZERO_STRUCTP(ipc_srv);
787 ipc_srv->cli = ipc_cli;
788
789 nt_status = cli_rpc_pipe_open_noauth(
790 ipc_srv->cli, &ndr_table_lsarpc.syntax_id, &pipe_hnd);
791 if (!NT_STATUS_IS_OK(nt_status)) {
792 DEBUG(1, ("cli_nt_session_open fail!\n"));
793 errno = ENOTSUP;
794 cli_shutdown(ipc_srv->cli);
795 free(ipc_srv);
796 return NULL;
797 }
798
799 /*
800 * Some systems don't support
801 * SEC_FLAG_MAXIMUM_ALLOWED, but NT sends 0x2000000
802 * so we might as well do it too.
803 */
804
805 nt_status = rpccli_lsa_open_policy(
806 pipe_hnd,
807 talloc_tos(),
808 True,
809 GENERIC_EXECUTE_ACCESS,
810 &ipc_srv->pol);
811
812 if (!NT_STATUS_IS_OK(nt_status)) {
813 errno = SMBC_errno(context, ipc_srv->cli);
814 cli_shutdown(ipc_srv->cli);
815 return NULL;
816 }
817
818 /* now add it to the cache (internal or external) */
819
820 errno = 0; /* let cache function set errno if it likes */
821 if (smbc_getFunctionAddCachedServer(context)(context, ipc_srv,
822 server,
823 "*IPC$",
824 *pp_workgroup,
825 *pp_username)) {
826 DEBUG(3, (" Failed to add server to cache\n"));
827 if (errno == 0) {
828 errno = ENOMEM;
829 }
830 cli_shutdown(ipc_srv->cli);
831 free(ipc_srv);
832 return NULL;
833 }
834
835 DLIST_ADD(context->internal->servers, ipc_srv);
836 }
837
838 return ipc_srv;
839 }
reg import