source: vendor/current/source3/libsmb/libsmb_context.c

Last change on this file was 988, checked in by Silvan Scherrer, 9 years ago

Samba Server: update vendor to version 4.4.3
File size: 26.6 KB
Line 
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
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 3 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, see <http://www.gnu.org/licenses/>.
23*/
24
25#include "includes.h"
26#include "libsmb/libsmb.h"
27#include "libsmbclient.h"
28#include "libsmb_internal.h"
29#include "secrets.h"
30#include "../libcli/smb/smbXcli_base.h"
31
32/*
33 * Is the logging working / configfile read ?
34 */
35static bool SMBC_initialized = false;
36static unsigned int initialized_ctx_count = 0;
37static void *initialized_ctx_count_mutex = NULL;
38
39/*
40 * Do some module- and library-wide intializations
41 */
42static void
43SMBC_module_init(void * punused)
44{
45 bool conf_loaded = False;
46 char *home = NULL;
47 TALLOC_CTX *frame = talloc_stackframe();
48
49 setup_logging("libsmbclient", DEBUG_STDOUT);
50
51 /* Here we would open the smb.conf file if needed ... */
52
53 home = getenv("HOME");
54 if (home) {
55 char *conf = NULL;
56 if (asprintf(&conf, "%s/.smb/smb.conf", home) > 0) {
57 if (lp_load_client(conf)) {
58 conf_loaded = True;
59 } else {
60 DEBUG(5, ("Could not load config file: %s\n",
61 conf));
62 }
63 SAFE_FREE(conf);
64 }
65 }
66
67 if (!conf_loaded) {
68 /*
69 * Well, if that failed, try the get_dyn_CONFIGFILE
70 * Which points to the standard locn, and if that
71 * fails, silently ignore it and use the internal
72 * defaults ...
73 */
74
75 if (!lp_load_client(get_dyn_CONFIGFILE())) {
76 DEBUG(5, ("Could not load config file: %s\n",
77 get_dyn_CONFIGFILE()));
78 } else if (home) {
79 char *conf;
80 /*
81 * We loaded the global config file. Now lets
82 * load user-specific modifications to the
83 * global config.
84 */
85 if (asprintf(&conf,
86 "%s/.smb/smb.conf.append",
87 home) > 0) {
88 if (!lp_load_client_no_reinit(conf)) {
89 DEBUG(10,
90 ("Could not append config file: "
91 "%s\n",
92 conf));
93 }
94 SAFE_FREE(conf);
95 }
96 }
97 }
98
99 load_interfaces(); /* Load the list of interfaces ... */
100
101 reopen_logs(); /* Get logging working ... */
102
103 /*
104 * Block SIGPIPE (from lib/util_sock.c: write())
105 * It is not needed and should not stop execution
106 */
107 BlockSignals(True, SIGPIPE);
108
109 /* Create the mutex we'll use to protect initialized_ctx_count */
110 if (SMB_THREAD_CREATE_MUTEX("initialized_ctx_count_mutex",
111 initialized_ctx_count_mutex) != 0) {
112 smb_panic("SMBC_module_init: "
113 "failed to create 'initialized_ctx_count' mutex");
114 }
115
116
117 TALLOC_FREE(frame);
118}
119
120
121static void
122SMBC_module_terminate(void)
123{
124 TALLOC_CTX *frame = talloc_stackframe();
125 secrets_shutdown();
126 gfree_all();
127 SMBC_initialized = false;
128 TALLOC_FREE(frame);
129}
130
131
132/*
133 * Get a new empty handle to fill in with your own info
134 */
135SMBCCTX *
136smbc_new_context(void)
137{
138 SMBCCTX *context;
139 TALLOC_CTX *frame = talloc_stackframe();
140
141 /* The first call to this function should initialize the module */
142 SMB_THREAD_ONCE(&SMBC_initialized, SMBC_module_init, NULL);
143
144 /*
145 * All newly added context fields should be placed in
146 * SMBC_internal_data, not directly in SMBCCTX.
147 */
148 context = SMB_MALLOC_P(SMBCCTX);
149 if (!context) {
150 TALLOC_FREE(frame);
151 errno = ENOMEM;
152 return NULL;
153 }
154
155 ZERO_STRUCTP(context);
156
157 context->internal = SMB_MALLOC_P(struct SMBC_internal_data);
158 if (!context->internal) {
159 TALLOC_FREE(frame);
160 SAFE_FREE(context);
161 errno = ENOMEM;
162 return NULL;
163 }
164
165 /* Initialize the context and establish reasonable defaults */
166 ZERO_STRUCTP(context->internal);
167
168 smbc_setDebug(context, 0);
169 smbc_setTimeout(context, 20000);
170 smbc_setPort(context, 0);
171
172 smbc_setOptionFullTimeNames(context, False);
173 smbc_setOptionOpenShareMode(context, SMBC_SHAREMODE_DENY_NONE);
174 smbc_setOptionSmbEncryptionLevel(context, SMBC_ENCRYPTLEVEL_NONE);
175 smbc_setOptionUseCCache(context, True);
176 smbc_setOptionCaseSensitive(context, False);
177 smbc_setOptionBrowseMaxLmbCount(context, 3); /* # LMBs to query */
178 smbc_setOptionUrlEncodeReaddirEntries(context, False);
179 smbc_setOptionOneSharePerServer(context, False);
180 if (getenv("LIBSMBCLIENT_NO_CCACHE") == NULL) {
181 smbc_setOptionUseCCache(context, true);
182 }
183
184 smbc_setFunctionAuthData(context, SMBC_get_auth_data);
185 smbc_setFunctionCheckServer(context, SMBC_check_server);
186 smbc_setFunctionRemoveUnusedServer(context, SMBC_remove_unused_server);
187
188 smbc_setOptionUserData(context, NULL);
189 smbc_setFunctionAddCachedServer(context, SMBC_add_cached_server);
190 smbc_setFunctionGetCachedServer(context, SMBC_get_cached_server);
191 smbc_setFunctionRemoveCachedServer(context, SMBC_remove_cached_server);
192 smbc_setFunctionPurgeCachedServers(context, SMBC_purge_cached_servers);
193
194 smbc_setFunctionOpen(context, SMBC_open_ctx);
195 smbc_setFunctionCreat(context, SMBC_creat_ctx);
196 smbc_setFunctionRead(context, SMBC_read_ctx);
197 smbc_setFunctionSplice(context, SMBC_splice_ctx);
198 smbc_setFunctionWrite(context, SMBC_write_ctx);
199 smbc_setFunctionClose(context, SMBC_close_ctx);
200 smbc_setFunctionUnlink(context, SMBC_unlink_ctx);
201 smbc_setFunctionRename(context, SMBC_rename_ctx);
202 smbc_setFunctionLseek(context, SMBC_lseek_ctx);
203 smbc_setFunctionFtruncate(context, SMBC_ftruncate_ctx);
204 smbc_setFunctionStat(context, SMBC_stat_ctx);
205 smbc_setFunctionStatVFS(context, SMBC_statvfs_ctx);
206 smbc_setFunctionFstatVFS(context, SMBC_fstatvfs_ctx);
207 smbc_setFunctionFstat(context, SMBC_fstat_ctx);
208 smbc_setFunctionOpendir(context, SMBC_opendir_ctx);
209 smbc_setFunctionClosedir(context, SMBC_closedir_ctx);
210 smbc_setFunctionReaddir(context, SMBC_readdir_ctx);
211 smbc_setFunctionGetdents(context, SMBC_getdents_ctx);
212 smbc_setFunctionMkdir(context, SMBC_mkdir_ctx);
213 smbc_setFunctionRmdir(context, SMBC_rmdir_ctx);
214 smbc_setFunctionTelldir(context, SMBC_telldir_ctx);
215 smbc_setFunctionLseekdir(context, SMBC_lseekdir_ctx);
216 smbc_setFunctionFstatdir(context, SMBC_fstatdir_ctx);
217 smbc_setFunctionNotify(context, SMBC_notify_ctx);
218 smbc_setFunctionChmod(context, SMBC_chmod_ctx);
219 smbc_setFunctionUtimes(context, SMBC_utimes_ctx);
220 smbc_setFunctionSetxattr(context, SMBC_setxattr_ctx);
221 smbc_setFunctionGetxattr(context, SMBC_getxattr_ctx);
222 smbc_setFunctionRemovexattr(context, SMBC_removexattr_ctx);
223 smbc_setFunctionListxattr(context, SMBC_listxattr_ctx);
224
225 smbc_setFunctionOpenPrintJob(context, SMBC_open_print_job_ctx);
226 smbc_setFunctionPrintFile(context, SMBC_print_file_ctx);
227 smbc_setFunctionListPrintJobs(context, SMBC_list_print_jobs_ctx);
228 smbc_setFunctionUnlinkPrintJob(context, SMBC_unlink_print_job_ctx);
229
230 TALLOC_FREE(frame);
231 return context;
232}
233
234/*
235 * Free a context
236 *
237 * Returns 0 on success. Otherwise returns 1, the SMBCCTX is _not_ freed
238 * and thus you'll be leaking memory if not handled properly.
239 *
240 */
241int
242smbc_free_context(SMBCCTX *context,
243 int shutdown_ctx)
244{
245 TALLOC_CTX *frame;
246 if (!context) {
247 errno = EBADF;
248 return 1;
249 }
250
251 frame = talloc_stackframe();
252
253 if (shutdown_ctx) {
254 SMBCFILE * f;
255 DEBUG(1,("Performing aggressive shutdown.\n"));
256
257 f = context->internal->files;
258 while (f) {
259 smbc_getFunctionClose(context)(context, f);
260 f = f->next;
261 }
262 context->internal->files = NULL;
263
264 /* First try to remove the servers the nice way. */
265 if (smbc_getFunctionPurgeCachedServers(context)(context)) {
266 SMBCSRV * s;
267 SMBCSRV * next;
268 DEBUG(1, ("Could not purge all servers, "
269 "Nice way shutdown failed.\n"));
270 s = context->internal->servers;
271 while (s) {
272 DEBUG(1, ("Forced shutdown: %p (cli=%p)\n",
273 s, s->cli));
274 cli_shutdown(s->cli);
275 smbc_getFunctionRemoveCachedServer(context)(context,
276 s);
277 next = s->next;
278 DLIST_REMOVE(context->internal->servers, s);
279 SAFE_FREE(s);
280 s = next;
281 }
282 context->internal->servers = NULL;
283 }
284 }
285 else {
286 /* This is the polite way */
287 if (smbc_getFunctionPurgeCachedServers(context)(context)) {
288 DEBUG(1, ("Could not purge all servers, "
289 "free_context failed.\n"));
290 errno = EBUSY;
291 TALLOC_FREE(frame);
292 return 1;
293 }
294 if (context->internal->servers) {
295 DEBUG(1, ("Active servers in context, "
296 "free_context failed.\n"));
297 errno = EBUSY;
298 TALLOC_FREE(frame);
299 return 1;
300 }
301 if (context->internal->files) {
302 DEBUG(1, ("Active files in context, "
303 "free_context failed.\n"));
304 errno = EBUSY;
305 TALLOC_FREE(frame);
306 return 1;
307 }
308 }
309
310 /* Things we have to clean up */
311 smbc_setWorkgroup(context, NULL);
312 smbc_setNetbiosName(context, NULL);
313 smbc_setUser(context, NULL);
314
315 DEBUG(3, ("Context %p successfully freed\n", context));
316
317 /* Free any DFS auth context. */
318 TALLOC_FREE(context->internal->auth_info);
319
320 SAFE_FREE(context->internal);
321 SAFE_FREE(context);
322
323 /* Protect access to the count of contexts in use */
324 if (SMB_THREAD_LOCK(initialized_ctx_count_mutex) != 0) {
325 smb_panic("error locking 'initialized_ctx_count'");
326 }
327
328 if (initialized_ctx_count) {
329 initialized_ctx_count--;
330 }
331
332 if (initialized_ctx_count == 0) {
333 SMBC_module_terminate();
334 }
335
336 /* Unlock the mutex */
337 if (SMB_THREAD_UNLOCK(initialized_ctx_count_mutex) != 0) {
338 smb_panic("error unlocking 'initialized_ctx_count'");
339 }
340
341 TALLOC_FREE(frame);
342 return 0;
343}
344
345
346/**
347 * Deprecated interface. Do not use. Instead, use the various
348 * smbc_setOption*() functions or smbc_setFunctionAuthDataWithContext().
349 */
350void
351smbc_option_set(SMBCCTX *context,
352 char *option_name,
353 ... /* option_value */)
354{
355 va_list ap;
356 union {
357 int i;
358 bool b;
359 smbc_get_auth_data_with_context_fn auth_fn;
360 void *v;
361 const char *s;
362 } option_value;
363
364 TALLOC_CTX *frame = talloc_stackframe();
365
366 va_start(ap, option_name);
367
368 if (strcmp(option_name, "debug_to_stderr") == 0) {
369 option_value.b = (bool) va_arg(ap, int);
370 smbc_setOptionDebugToStderr(context, option_value.b);
371
372 } else if (strcmp(option_name, "full_time_names") == 0) {
373 option_value.b = (bool) va_arg(ap, int);
374 smbc_setOptionFullTimeNames(context, option_value.b);
375
376 } else if (strcmp(option_name, "open_share_mode") == 0) {
377 option_value.i = va_arg(ap, int);
378 smbc_setOptionOpenShareMode(context, option_value.i);
379
380 } else if (strcmp(option_name, "auth_function") == 0) {
381 option_value.auth_fn =
382 va_arg(ap, smbc_get_auth_data_with_context_fn);
383 smbc_setFunctionAuthDataWithContext(context, option_value.auth_fn);
384
385 } else if (strcmp(option_name, "user_data") == 0) {
386 option_value.v = va_arg(ap, void *);
387 smbc_setOptionUserData(context, option_value.v);
388
389 } else if (strcmp(option_name, "smb_encrypt_level") == 0) {
390 option_value.s = va_arg(ap, const char *);
391 if (strcmp(option_value.s, "none") == 0) {
392 smbc_setOptionSmbEncryptionLevel(context,
393 SMBC_ENCRYPTLEVEL_NONE);
394 } else if (strcmp(option_value.s, "request") == 0) {
395 smbc_setOptionSmbEncryptionLevel(context,
396 SMBC_ENCRYPTLEVEL_REQUEST);
397 } else if (strcmp(option_value.s, "require") == 0) {
398 smbc_setOptionSmbEncryptionLevel(context,
399 SMBC_ENCRYPTLEVEL_REQUIRE);
400 }
401
402 } else if (strcmp(option_name, "browse_max_lmb_count") == 0) {
403 option_value.i = va_arg(ap, int);
404 smbc_setOptionBrowseMaxLmbCount(context, option_value.i);
405
406 } else if (strcmp(option_name, "urlencode_readdir_entries") == 0) {
407 option_value.b = (bool) va_arg(ap, int);
408 smbc_setOptionUrlEncodeReaddirEntries(context, option_value.b);
409
410 } else if (strcmp(option_name, "one_share_per_server") == 0) {
411 option_value.b = (bool) va_arg(ap, int);
412 smbc_setOptionOneSharePerServer(context, option_value.b);
413
414 } else if (strcmp(option_name, "use_kerberos") == 0) {
415 option_value.b = (bool) va_arg(ap, int);
416 smbc_setOptionUseKerberos(context, option_value.b);
417
418 } else if (strcmp(option_name, "fallback_after_kerberos") == 0) {
419 option_value.b = (bool) va_arg(ap, int);
420 smbc_setOptionFallbackAfterKerberos(context, option_value.b);
421
422 } else if (strcmp(option_name, "use_ccache") == 0) {
423 option_value.b = (bool) va_arg(ap, int);
424 smbc_setOptionUseCCache(context, option_value.b);
425
426 } else if (strcmp(option_name, "no_auto_anonymous_login") == 0) {
427 option_value.b = (bool) va_arg(ap, int);
428 smbc_setOptionNoAutoAnonymousLogin(context, option_value.b);
429 }
430
431 va_end(ap);
432 TALLOC_FREE(frame);
433}
434
435
436/*
437 * Deprecated interface. Do not use. Instead, use the various
438 * smbc_getOption*() functions.
439 */
440void *
441smbc_option_get(SMBCCTX *context,
442 char *option_name)
443{
444 if (strcmp(option_name, "debug_stderr") == 0) {
445#if defined(__intptr_t_defined) || defined(HAVE_INTPTR_T)
446 return (void *) (intptr_t) smbc_getOptionDebugToStderr(context);
447#else
448 return (void *) smbc_getOptionDebugToStderr(context);
449#endif
450
451 } else if (strcmp(option_name, "full_time_names") == 0) {
452#if defined(__intptr_t_defined) || defined(HAVE_INTPTR_T)
453 return (void *) (intptr_t) smbc_getOptionFullTimeNames(context);
454#else
455 return (void *) smbc_getOptionFullTimeNames(context);
456#endif
457
458 } else if (strcmp(option_name, "open_share_mode") == 0) {
459#if defined(__intptr_t_defined) || defined(HAVE_INTPTR_T)
460 return (void *) (intptr_t) smbc_getOptionOpenShareMode(context);
461#else
462 return (void *) smbc_getOptionOpenShareMode(context);
463#endif
464
465 } else if (strcmp(option_name, "auth_function") == 0) {
466 return (void *) smbc_getFunctionAuthDataWithContext(context);
467
468 } else if (strcmp(option_name, "user_data") == 0) {
469 return smbc_getOptionUserData(context);
470
471 } else if (strcmp(option_name, "smb_encrypt_level") == 0) {
472 switch(smbc_getOptionSmbEncryptionLevel(context))
473 {
474 case 0:
475 return discard_const_p(void, "none");
476 case 1:
477 return discard_const_p(void, "request");
478 case 2:
479 return discard_const_p(void, "require");
480 }
481
482 } else if (strcmp(option_name, "smb_encrypt_on") == 0) {
483 SMBCSRV *s;
484 unsigned int num_servers = 0;
485
486 for (s = context->internal->servers; s; s = s->next) {
487 num_servers++;
488 if (!smb1cli_conn_encryption_on(s->cli->conn)) {
489 return (void *)false;
490 }
491 }
492#if defined(__intptr_t_defined) || defined(HAVE_INTPTR_T)
493 return (void *) (intptr_t) (bool) (num_servers > 0);
494#else
495 return (void *) (bool) (num_servers > 0);
496#endif
497
498 } else if (strcmp(option_name, "browse_max_lmb_count") == 0) {
499#if defined(__intptr_t_defined) || defined(HAVE_INTPTR_T)
500 return (void *) (intptr_t) smbc_getOptionBrowseMaxLmbCount(context);
501#else
502 return (void *) smbc_getOptionBrowseMaxLmbCount(context);
503#endif
504
505 } else if (strcmp(option_name, "urlencode_readdir_entries") == 0) {
506#if defined(__intptr_t_defined) || defined(HAVE_INTPTR_T)
507 return (void *)(intptr_t) smbc_getOptionUrlEncodeReaddirEntries(context);
508#else
509 return (void *) (bool) smbc_getOptionUrlEncodeReaddirEntries(context);
510#endif
511
512 } else if (strcmp(option_name, "one_share_per_server") == 0) {
513#if defined(__intptr_t_defined) || defined(HAVE_INTPTR_T)
514 return (void *) (intptr_t) smbc_getOptionOneSharePerServer(context);
515#else
516 return (void *) (bool) smbc_getOptionOneSharePerServer(context);
517#endif
518
519 } else if (strcmp(option_name, "use_kerberos") == 0) {
520#if defined(__intptr_t_defined) || defined(HAVE_INTPTR_T)
521 return (void *) (intptr_t) smbc_getOptionUseKerberos(context);
522#else
523 return (void *) (bool) smbc_getOptionUseKerberos(context);
524#endif
525
526 } else if (strcmp(option_name, "fallback_after_kerberos") == 0) {
527#if defined(__intptr_t_defined) || defined(HAVE_INTPTR_T)
528 return (void *)(intptr_t) smbc_getOptionFallbackAfterKerberos(context);
529#else
530 return (void *) (bool) smbc_getOptionFallbackAfterKerberos(context);
531#endif
532
533 } else if (strcmp(option_name, "use_ccache") == 0) {
534#if defined(__intptr_t_defined) || defined(HAVE_INTPTR_T)
535 return (void *) (intptr_t) smbc_getOptionUseCCache(context);
536#else
537 return (void *) (bool) smbc_getOptionUseCCache(context);
538#endif
539
540 } else if (strcmp(option_name, "no_auto_anonymous_login") == 0) {
541#if defined(__intptr_t_defined) || defined(HAVE_INTPTR_T)
542 return (void *) (intptr_t) smbc_getOptionNoAutoAnonymousLogin(context);
543#else
544 return (void *) (bool) smbc_getOptionNoAutoAnonymousLogin(context);
545#endif
546 }
547
548 return NULL;
549}
550
551
552/*
553 * Initialize the library, etc.
554 *
555 * We accept a struct containing handle information.
556 * valid values for info->debug from 0 to 100,
557 * and insist that info->fn must be non-null.
558 */
559SMBCCTX *
560smbc_init_context(SMBCCTX *context)
561{
562 int pid;
563 TALLOC_CTX *frame;
564
565 if (!context) {
566 errno = EBADF;
567 return NULL;
568 }
569
570 /* Do not initialise the same client twice */
571 if (context->internal->initialized) {
572 return NULL;
573 }
574
575 frame = talloc_stackframe();
576
577 if ((!smbc_getFunctionAuthData(context) &&
578 !smbc_getFunctionAuthDataWithContext(context)) ||
579 smbc_getDebug(context) < 0 ||
580 smbc_getDebug(context) > 100) {
581
582 TALLOC_FREE(frame);
583 errno = EINVAL;
584 return NULL;
585
586 }
587
588 if (!smbc_getUser(context)) {
589 /*
590 * FIXME: Is this the best way to get the user info?
591 */
592 char *user = getenv("USER");
593 /* walk around as "guest" if no username can be found */
594 if (!user) {
595 user = SMB_STRDUP("guest");
596 } else {
597 user = SMB_STRDUP(user);
598 }
599
600 if (!user) {
601 TALLOC_FREE(frame);
602 errno = ENOMEM;
603 return NULL;
604 }
605
606 smbc_setUser(context, user);
607 SAFE_FREE(user);
608
609 if (!smbc_getUser(context)) {
610 TALLOC_FREE(frame);
611 errno = ENOMEM;
612 return NULL;
613 }
614 }
615
616 if (!smbc_getNetbiosName(context)) {
617 /*
618 * We try to get our netbios name from the config. If that
619 * fails we fall back on constructing our netbios name from
620 * our hostname etc
621 */
622 char *netbios_name;
623 if (lp_netbios_name()) {
624 netbios_name = SMB_STRDUP(lp_netbios_name());
625 } else {
626 /*
627 * Hmmm, I want to get hostname as well, but I am too
628 * lazy for the moment
629 */
630 pid = getpid();
631 netbios_name = (char *)SMB_MALLOC(17);
632 if (!netbios_name) {
633 TALLOC_FREE(frame);
634 errno = ENOMEM;
635 return NULL;
636 }
637 slprintf(netbios_name, 16,
638 "smbc%s%d", smbc_getUser(context), pid);
639 }
640
641 if (!netbios_name) {
642 TALLOC_FREE(frame);
643 errno = ENOMEM;
644 return NULL;
645 }
646
647 smbc_setNetbiosName(context, netbios_name);
648 SAFE_FREE(netbios_name);
649
650 if (!smbc_getNetbiosName(context)) {
651 TALLOC_FREE(frame);
652 errno = ENOMEM;
653 return NULL;
654 }
655 }
656
657 DEBUG(1, ("Using netbios name %s.\n", smbc_getNetbiosName(context)));
658
659 if (!smbc_getWorkgroup(context)) {
660 char *workgroup;
661
662 if (lp_workgroup()) {
663 workgroup = SMB_STRDUP(lp_workgroup());
664 }
665 else {
666 /* TODO: Think about a decent default workgroup */
667 workgroup = SMB_STRDUP("samba");
668 }
669
670 if (!workgroup) {
671 TALLOC_FREE(frame);
672 errno = ENOMEM;
673 return NULL;
674 }
675
676 smbc_setWorkgroup(context, workgroup);
677 SAFE_FREE(workgroup);
678
679 if (!smbc_getWorkgroup(context)) {
680 TALLOC_FREE(frame);
681 errno = ENOMEM;
682 return NULL;
683 }
684 }
685
686 DEBUG(1, ("Using workgroup %s.\n", smbc_getWorkgroup(context)));
687
688 /* shortest timeout is 1 second */
689 if (smbc_getTimeout(context) > 0 && smbc_getTimeout(context) < 1000)
690 smbc_setTimeout(context, 1000);
691
692 context->internal->initialized = True;
693
694 /* Protect access to the count of contexts in use */
695 if (SMB_THREAD_LOCK(initialized_ctx_count_mutex) != 0) {
696 smb_panic("error locking 'initialized_ctx_count'");
697 }
698
699 initialized_ctx_count++;
700
701 /* Unlock the mutex */
702 if (SMB_THREAD_UNLOCK(initialized_ctx_count_mutex) != 0) {
703 smb_panic("error unlocking 'initialized_ctx_count'");
704 }
705
706 TALLOC_FREE(frame);
707 return context;
708}
709
710
711/* Return the verion of samba, and thus libsmbclient */
712const char *
713smbc_version(void)
714{
715 return samba_version_string();
716}
717
718/*
719 * Set the credentials so DFS will work when following referrals.
720 * This function is broken and must be removed. No SMBCCTX arg...
721 * JRA.
722 */
723
724void
725smbc_set_credentials(const char *workgroup,
726 const char *user,
727 const char *password,
728 smbc_bool use_kerberos,
729 const char *signing_state)
730{
731 d_printf("smbc_set_credentials is obsolete. Replace with smbc_set_credentials_with_fallback().\n");
732}
733
734void smbc_set_credentials_with_fallback(SMBCCTX *context,
735 const char *workgroup,
736 const char *user,
737 const char *password)
738{
739 smbc_bool use_kerberos = false;
740 const char *signing_state = "off";
741 struct user_auth_info *auth_info = NULL;
742 TALLOC_CTX *frame;
743
744 if (! context) {
745
746 return;
747 }
748
749 frame = talloc_stackframe();
750
751 if (! workgroup || ! *workgroup) {
752 workgroup = smbc_getWorkgroup(context);
753 }
754
755 if (! user) {
756 user = smbc_getUser(context);
757 }
758
759 if (! password) {
760 password = "";
761 }
762
763 auth_info = user_auth_info_init(NULL);
764
765 if (! auth_info) {
766 DEBUG(0, ("smbc_set_credentials_with_fallback: allocation fail\n"));
767 TALLOC_FREE(frame);
768 return;
769 }
770
771 if (smbc_getOptionUseKerberos(context)) {
772 use_kerberos = True;
773 }
774
775 if (lp_client_signing() != SMB_SIGNING_OFF) {
776 signing_state = "if_required";
777 }
778
779 if (lp_client_signing() == SMB_SIGNING_REQUIRED) {
780 signing_state = "required";
781 }
782
783 set_cmdline_auth_info_username(auth_info, user);
784 set_cmdline_auth_info_domain(auth_info, workgroup);
785 set_cmdline_auth_info_password(auth_info, password);
786 set_cmdline_auth_info_use_kerberos(auth_info, use_kerberos);
787 set_cmdline_auth_info_signing_state(auth_info, signing_state);
788 set_cmdline_auth_info_fallback_after_kerberos(auth_info,
789 smbc_getOptionFallbackAfterKerberos(context));
790 set_cmdline_auth_info_use_ccache(
791 auth_info, smbc_getOptionUseCCache(context));
792
793 TALLOC_FREE(context->internal->auth_info);
794
795 context->internal->auth_info = auth_info;
796 TALLOC_FREE(frame);
797}
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