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talloc: Do an early return
[Samba.git] / lib / param / loadparm.c
blobaa4589de78de5810381108d7e846ac7be8f6d7d1
1 /*
2 Unix SMB/CIFS implementation.
3 Parameter loading functions
4 Copyright (C) Karl Auer 1993-1998
5
6 Largely re-written by Andrew Tridgell, September 1994
7
8 Copyright (C) Simo Sorce 2001
9 Copyright (C) Alexander Bokovoy 2002
10 Copyright (C) Stefan (metze) Metzmacher 2002
11 Copyright (C) Jim McDonough (jmcd@us.ibm.com) 2003.
12 Copyright (C) James Myers 2003 <myersjj@samba.org>
13 Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2007
14 Copyright (C) Andrew Bartlett 2011-2012
15
16 This program is free software; you can redistribute it and/or modify
17 it under the terms of the GNU General Public License as published by
18 the Free Software Foundation; either version 3 of the License, or
19 (at your option) any later version.
20
21 This program is distributed in the hope that it will be useful,
22 but WITHOUT ANY WARRANTY; without even the implied warranty of
23 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 GNU General Public License for more details.
25
26 You should have received a copy of the GNU General Public License
27 along with this program. If not, see <http://www.gnu.org/licenses/>.
28 */
29
30 /*
31 * Load parameters.
32 *
33 * This module provides suitable callback functions for the params
34 * module. It builds the internal table of service details which is
35 * then used by the rest of the server.
36 *
37 * To add a parameter:
38 *
39 * 1) add it to the global or service structure definition
40 * 2) add it to the parm_table
41 * 3) add it to the list of available functions (eg: using FN_GLOBAL_STRING())
42 * 4) If it's a global then initialise it in init_globals. If a local
43 * (ie. service) parameter then initialise it in the sDefault structure
44 *
45 *
46 * Notes:
47 * The configuration file is processed sequentially for speed. It is NOT
48 * accessed randomly as happens in 'real' Windows. For this reason, there
49 * is a fair bit of sequence-dependent code here - ie., code which assumes
50 * that certain things happen before others. In particular, the code which
51 * happens at the boundary between sections is delicately poised, so be
52 * careful!
53 *
54 */
55
56 #include "includes.h"
57 #include "version.h"
58 #include "dynconfig/dynconfig.h"
59 #include "system/time.h"
60 #include "system/locale.h"
61 #include "system/network.h" /* needed for TCP_NODELAY */
62 #include "../lib/util/dlinklist.h"
63 #include "lib/param/param.h"
64 #include "lib/param/loadparm.h"
65 #include "auth/gensec/gensec.h"
66 #include "lib/param/s3_param.h"
67 #include "lib/util/bitmap.h"
68 #include "libcli/smb/smb_constants.h"
69
70 #define standard_sub_basic talloc_strdup
71
72 static bool do_parameter(const char *, const char *, void *);
73 static bool defaults_saved = false;
74
75 #define LOADPARM_EXTRA_GLOBALS \
76 struct parmlist_entry *param_opt; \
77 char *szRealm; \
78 char *szConfigFile; \
79 int iminreceivefile; \
80 char *szPrintcapname; \
81 int CupsEncrypt; \
82 int iPreferredMaster; \
83 char *szLdapMachineSuffix; \
84 char *szLdapUserSuffix; \
85 char *szLdapIdmapSuffix; \
86 char *szLdapGroupSuffix; \
87 char *szUsershareTemplateShare; \
88 char *szIdmapUID; \
89 char *szIdmapGID; \
90 int winbindMaxDomainConnections; \
91 int ismb2_max_credits; \
92 char *tls_keyfile; \
93 char *tls_certfile; \
94 char *tls_cafile; \
95 char *tls_crlfile; \
96 char *tls_dhpfile; \
97 char *loglevel; \
98 char *panic_action;
99
100 #include "lib/param/param_global.h"
101
102 #define NUMPARAMETERS (sizeof(parm_table) / sizeof(struct parm_struct))
103
104 /* we don't need a special handler for "dos charset" and "unix charset" */
105 #define handle_dos_charset NULL
106 #define handle_charset NULL
107
108 /* these are parameter handlers which are not needed in the
109 * non-source3 code
110 */
111 #define handle_netbios_aliases NULL
112 #define handle_printing NULL
113 #define handle_ldap_debug_level NULL
114 #define handle_idmap_backend NULL
115 #define handle_idmap_uid NULL
116 #define handle_idmap_gid NULL
117
118 #ifndef N_
119 #define N_(x) x
120 #endif
121
122 /* prototypes for the special type handlers */
123 static bool handle_include(struct loadparm_context *lp_ctx, int unused,
124 const char *pszParmValue, char **ptr);
125 static bool handle_realm(struct loadparm_context *lp_ctx, int unused,
126 const char *pszParmValue, char **ptr);
127 static bool handle_copy(struct loadparm_context *lp_ctx, int unused,
128 const char *pszParmValue, char **ptr);
129 static bool handle_debug_list(struct loadparm_context *lp_ctx, int unused,
130 const char *pszParmValue, char **ptr);
131 static bool handle_logfile(struct loadparm_context *lp_ctx, int unused,
132 const char *pszParmValue, char **ptr);
133
134 #include "lib/param/param_table.c"
135
136 /* local variables */
137 struct loadparm_context {
138 const char *szConfigFile;
139 struct loadparm_global *globals;
140 struct loadparm_service **services;
141 struct loadparm_service *sDefault;
142 struct smb_iconv_handle *iconv_handle;
143 int iNumServices;
144 struct loadparm_service *currentService;
145 bool bInGlobalSection;
146 struct file_lists {
147 struct file_lists *next;
148 char *name;
149 char *subfname;
150 time_t modtime;
151 } *file_lists;
152 unsigned int flags[NUMPARAMETERS];
153 bool loaded;
154 bool refuse_free;
155 bool global; /* Is this the global context, which may set
156 * global variables such as debug level etc? */
157 const struct loadparm_s3_helpers *s3_fns;
158 };
159
160
161 struct loadparm_service *lpcfg_default_service(struct loadparm_context *lp_ctx)
162 {
163 if (lp_ctx->s3_fns) {
164 return lp_ctx->s3_fns->get_default_loadparm_service();
165 }
166 return lp_ctx->sDefault;
167 }
168
169 /**
170 * Convenience routine to grab string parameters into temporary memory
171 * and run standard_sub_basic on them.
172 *
173 * The buffers can be written to by
174 * callers without affecting the source string.
175 */
176
177 static const char *lp_string(const char *s)
178 {
179 #if 0 /* until REWRITE done to make thread-safe */
180 size_t len = s ? strlen(s) : 0;
181 char *ret;
182 #endif
183
184 /* The follow debug is useful for tracking down memory problems
185 especially if you have an inner loop that is calling a lp_*()
186 function that returns a string. Perhaps this debug should be
187 present all the time? */
188
189 #if 0
190 DEBUG(10, ("lp_string(%s)\n", s));
191 #endif
192
193 #if 0 /* until REWRITE done to make thread-safe */
194 if (!lp_talloc)
195 lp_talloc = talloc_init("lp_talloc");
196
197 ret = talloc_array(lp_talloc, char, len + 100); /* leave room for substitution */
198
199 if (!ret)
200 return NULL;
201
202 if (!s)
203 *ret = 0;
204 else
205 strlcpy(ret, s, len);
206
207 if (trim_string(ret, "\"", "\"")) {
208 if (strchr(ret,'"') != NULL)
209 strlcpy(ret, s, len);
210 }
211
212 standard_sub_basic(ret,len+100);
213 return (ret);
214 #endif
215 return s;
216 }
217
218 /*
219 In this section all the functions that are used to access the
220 parameters from the rest of the program are defined
221 */
222
223 /*
224 * the creation of separate lpcfg_*() and lp_*() functions is to allow
225 * for code compatibility between existing Samba4 and Samba3 code.
226 */
227
228 /* this global context supports the lp_*() function varients */
229 static struct loadparm_context *global_loadparm_context;
230
231 #define lpcfg_default_service global_loadparm_context->sDefault
232 #define lpcfg_global_service(i) global_loadparm_context->services[i]
233
234 #define FN_GLOBAL_STRING(fn_name,var_name) \
235 _PUBLIC_ const char *lpcfg_ ## fn_name(struct loadparm_context *lp_ctx) { \
236 if (lp_ctx == NULL) return NULL; \
237 if (lp_ctx->s3_fns) { \
238 SMB_ASSERT(lp_ctx->s3_fns->fn_name); \
239 return lp_ctx->s3_fns->fn_name(); \
240 } \
241 return lp_ctx->globals->var_name ? lp_string(lp_ctx->globals->var_name) : ""; \
242 }
243
244 #define FN_GLOBAL_CONST_STRING(fn_name,var_name) \
245 _PUBLIC_ const char *lpcfg_ ## fn_name(struct loadparm_context *lp_ctx) {\
246 if (lp_ctx == NULL) return NULL; \
247 if (lp_ctx->s3_fns) { \
248 SMB_ASSERT(lp_ctx->s3_fns->fn_name); \
249 return lp_ctx->s3_fns->fn_name(); \
250 } \
251 return lp_ctx->globals->var_name ? lp_string(lp_ctx->globals->var_name) : ""; \
252 }
253
254 #define FN_GLOBAL_LIST(fn_name,var_name) \
255 _PUBLIC_ const char **lpcfg_ ## fn_name(struct loadparm_context *lp_ctx) { \
256 if (lp_ctx == NULL) return NULL; \
257 if (lp_ctx->s3_fns) { \
258 SMB_ASSERT(lp_ctx->s3_fns->fn_name); \
259 return lp_ctx->s3_fns->fn_name(); \
260 } \
261 return lp_ctx->globals->var_name; \
262 }
263
264 #define FN_GLOBAL_BOOL(fn_name,var_name) \
265 _PUBLIC_ bool lpcfg_ ## fn_name(struct loadparm_context *lp_ctx) {\
266 if (lp_ctx == NULL) return false; \
267 if (lp_ctx->s3_fns) { \
268 SMB_ASSERT(lp_ctx->s3_fns->fn_name); \
269 return lp_ctx->s3_fns->fn_name(); \
270 } \
271 return lp_ctx->globals->var_name; \
272 }
273
274 #define FN_GLOBAL_INTEGER(fn_name,var_name) \
275 _PUBLIC_ int lpcfg_ ## fn_name(struct loadparm_context *lp_ctx) { \
276 if (lp_ctx->s3_fns) { \
277 SMB_ASSERT(lp_ctx->s3_fns->fn_name); \
278 return lp_ctx->s3_fns->fn_name(); \
279 } \
280 return lp_ctx->globals->var_name; \
281 }
282
283 /* Local parameters don't need the ->s3_fns because the struct
284 * loadparm_service is shared and lpcfg_service() checks the ->s3_fns
285 * hook */
286 #define FN_LOCAL_STRING(fn_name,val) \
287 _PUBLIC_ const char *lpcfg_ ## fn_name(struct loadparm_service *service, \
288 struct loadparm_service *sDefault) { \
289 return(lp_string((const char *)((service != NULL && service->val != NULL) ? service->val : sDefault->val))); \
290 }
291
292 #define FN_LOCAL_CONST_STRING(fn_name,val) FN_LOCAL_STRING(fn_name, val)
293
294 #define FN_LOCAL_LIST(fn_name,val) \
295 _PUBLIC_ const char **lpcfg_ ## fn_name(struct loadparm_service *service, \
296 struct loadparm_service *sDefault) {\
297 return(const char **)(service != NULL && service->val != NULL? service->val : sDefault->val); \
298 }
299
300 #define FN_LOCAL_PARM_BOOL(fn_name, val) FN_LOCAL_BOOL(fn_name, val)
301
302 #define FN_LOCAL_BOOL(fn_name,val) \
303 _PUBLIC_ bool lpcfg_ ## fn_name(struct loadparm_service *service, \
304 struct loadparm_service *sDefault) { \
305 return((service != NULL)? service->val : sDefault->val); \
306 }
307
308 #define FN_LOCAL_INTEGER(fn_name,val) \
309 _PUBLIC_ int lpcfg_ ## fn_name(struct loadparm_service *service, \
310 struct loadparm_service *sDefault) { \
311 return((service != NULL)? service->val : sDefault->val); \
312 }
313
314 #define FN_LOCAL_PARM_INTEGER(fn_name, val) FN_LOCAL_INTEGER(fn_name, val)
315
316 #define FN_LOCAL_CHAR(fn_name,val) \
317 _PUBLIC_ char lpcfg_ ## fn_name(struct loadparm_service *service, \
318 struct loadparm_service *sDefault) { \
319 return((service != NULL)? service->val : sDefault->val); \
320 }
321
322 #include "lib/param/param_functions.c"
323
324 /* These functions remain only in lib/param for now */
325 FN_GLOBAL_BOOL(readraw, bReadRaw)
326 FN_GLOBAL_BOOL(writeraw, bWriteRaw)
327 FN_GLOBAL_CONST_STRING(cachedir, szCacheDir)
328 FN_GLOBAL_CONST_STRING(statedir, szStateDir)
329
330 /* local prototypes */
331 static int map_parameter(const char *pszParmName);
332 static struct loadparm_service *getservicebyname(struct loadparm_context *lp_ctx,
333 const char *pszServiceName);
334 static void copy_service(struct loadparm_service *pserviceDest,
335 struct loadparm_service *pserviceSource,
336 struct bitmap *pcopymapDest);
337 static bool lpcfg_service_ok(struct loadparm_service *service);
338 static bool do_section(const char *pszSectionName, void *);
339 static void init_copymap(struct loadparm_service *pservice);
340
341 /* This is a helper function for parametrical options support. */
342 /* It returns a pointer to parametrical option value if it exists or NULL otherwise */
343 /* Actual parametrical functions are quite simple */
344 const char *lpcfg_get_parametric(struct loadparm_context *lp_ctx,
345 struct loadparm_service *service,
346 const char *type, const char *option)
347 {
348 char *vfskey_tmp = NULL;
349 char *vfskey = NULL;
350 struct parmlist_entry *data;
351
352 if (lp_ctx == NULL)
353 return NULL;
354
355 if (lp_ctx->s3_fns) {
356 return lp_ctx->s3_fns->get_parametric(service, type, option);
357 }
358
359 data = (service == NULL ? lp_ctx->globals->param_opt : service->param_opt);
360
361 vfskey_tmp = talloc_asprintf(NULL, "%s:%s", type, option);
362 if (vfskey_tmp == NULL) return NULL;
363 vfskey = strlower_talloc(NULL, vfskey_tmp);
364 talloc_free(vfskey_tmp);
365
366 while (data) {
367 if (strcmp(data->key, vfskey) == 0) {
368 talloc_free(vfskey);
369 return data->value;
370 }
371 data = data->next;
372 }
373
374 if (service != NULL) {
375 /* Try to fetch the same option but from globals */
376 /* but only if we are not already working with globals */
377 for (data = lp_ctx->globals->param_opt; data;
378 data = data->next) {
379 if (strcmp(data->key, vfskey) == 0) {
380 talloc_free(vfskey);
381 return data->value;
382 }
383 }
384 }
385
386 talloc_free(vfskey);
387
388 return NULL;
389 }
390
391
392 /**
393 * convenience routine to return int parameters.
394 */
395 static int lp_int(const char *s)
396 {
397
398 if (!s) {
399 DEBUG(0,("lp_int(%s): is called with NULL!\n",s));
400 return -1;
401 }
402
403 return strtol(s, NULL, 0);
404 }
405
406 /**
407 * convenience routine to return unsigned long parameters.
408 */
409 static unsigned long lp_ulong(const char *s)
410 {
411
412 if (!s) {
413 DEBUG(0,("lp_ulong(%s): is called with NULL!\n",s));
414 return -1;
415 }
416
417 return strtoul(s, NULL, 0);
418 }
419
420 /**
421 * convenience routine to return unsigned long parameters.
422 */
423 static long lp_long(const char *s)
424 {
425
426 if (!s) {
427 DEBUG(0,("lp_long(%s): is called with NULL!\n",s));
428 return -1;
429 }
430
431 return strtol(s, NULL, 0);
432 }
433
434 /**
435 * convenience routine to return unsigned long parameters.
436 */
437 static double lp_double(const char *s)
438 {
439
440 if (!s) {
441 DEBUG(0,("lp_double(%s): is called with NULL!\n",s));
442 return -1;
443 }
444
445 return strtod(s, NULL);
446 }
447
448 /**
449 * convenience routine to return boolean parameters.
450 */
451 static bool lp_bool(const char *s)
452 {
453 bool ret = false;
454
455 if (!s) {
456 DEBUG(0,("lp_bool(%s): is called with NULL!\n",s));
457 return false;
458 }
459
460 if (!set_boolean(s, &ret)) {
461 DEBUG(0,("lp_bool(%s): value is not boolean!\n",s));
462 return false;
463 }
464
465 return ret;
466 }
467
468
469 /**
470 * Return parametric option from a given service. Type is a part of option before ':'
471 * Parametric option has following syntax: 'Type: option = value'
472 * Returned value is allocated in 'lp_talloc' context
473 */
474
475 const char *lpcfg_parm_string(struct loadparm_context *lp_ctx,
476 struct loadparm_service *service, const char *type,
477 const char *option)
478 {
479 const char *value = lpcfg_get_parametric(lp_ctx, service, type, option);
480
481 if (value)
482 return lp_string(value);
483
484 return NULL;
485 }
486
487 /**
488 * Return parametric option from a given service. Type is a part of option before ':'
489 * Parametric option has following syntax: 'Type: option = value'
490 * Returned value is allocated in 'lp_talloc' context
491 */
492
493 const char **lpcfg_parm_string_list(TALLOC_CTX *mem_ctx,
494 struct loadparm_context *lp_ctx,
495 struct loadparm_service *service,
496 const char *type,
497 const char *option, const char *separator)
498 {
499 const char *value = lpcfg_get_parametric(lp_ctx, service, type, option);
500
501 if (value != NULL)
502 return (const char **)str_list_make(mem_ctx, value, separator);
503
504 return NULL;
505 }
506
507 /**
508 * Return parametric option from a given service. Type is a part of option before ':'
509 * Parametric option has following syntax: 'Type: option = value'
510 */
511
512 int lpcfg_parm_int(struct loadparm_context *lp_ctx,
513 struct loadparm_service *service, const char *type,
514 const char *option, int default_v)
515 {
516 const char *value = lpcfg_get_parametric(lp_ctx, service, type, option);
517
518 if (value)
519 return lp_int(value);
520
521 return default_v;
522 }
523
524 /**
525 * Return parametric option from a given service. Type is a part of
526 * option before ':'.
527 * Parametric option has following syntax: 'Type: option = value'.
528 */
529
530 int lpcfg_parm_bytes(struct loadparm_context *lp_ctx,
531 struct loadparm_service *service, const char *type,
532 const char *option, int default_v)
533 {
534 uint64_t bval;
535
536 const char *value = lpcfg_get_parametric(lp_ctx, service, type, option);
537
538 if (value && conv_str_size_error(value, &bval)) {
539 if (bval <= INT_MAX) {
540 return (int)bval;
541 }
542 }
543
544 return default_v;
545 }
546
547 /**
548 * Return parametric option from a given service.
549 * Type is a part of option before ':'
550 * Parametric option has following syntax: 'Type: option = value'
551 */
552 unsigned long lpcfg_parm_ulong(struct loadparm_context *lp_ctx,
553 struct loadparm_service *service, const char *type,
554 const char *option, unsigned long default_v)
555 {
556 const char *value = lpcfg_get_parametric(lp_ctx, service, type, option);
557
558 if (value)
559 return lp_ulong(value);
560
561 return default_v;
562 }
563
564 long lpcfg_parm_long(struct loadparm_context *lp_ctx,
565 struct loadparm_service *service, const char *type,
566 const char *option, long default_v)
567 {
568 const char *value = lpcfg_get_parametric(lp_ctx, service, type, option);
569
570 if (value)
571 return lp_long(value);
572
573 return default_v;
574 }
575
576 double lpcfg_parm_double(struct loadparm_context *lp_ctx,
577 struct loadparm_service *service, const char *type,
578 const char *option, double default_v)
579 {
580 const char *value = lpcfg_get_parametric(lp_ctx, service, type, option);
581
582 if (value != NULL)
583 return lp_double(value);
584
585 return default_v;
586 }
587
588 /**
589 * Return parametric option from a given service. Type is a part of option before ':'
590 * Parametric option has following syntax: 'Type: option = value'
591 */
592
593 bool lpcfg_parm_bool(struct loadparm_context *lp_ctx,
594 struct loadparm_service *service, const char *type,
595 const char *option, bool default_v)
596 {
597 const char *value = lpcfg_get_parametric(lp_ctx, service, type, option);
598
599 if (value != NULL)
600 return lp_bool(value);
601
602 return default_v;
603 }
604
605
606 /**
607 * Initialise a service to the defaults.
608 */
609
610 static struct loadparm_service *init_service(TALLOC_CTX *mem_ctx, struct loadparm_service *sDefault)
611 {
612 struct loadparm_service *pservice =
613 talloc_zero(mem_ctx, struct loadparm_service);
614 copy_service(pservice, sDefault, NULL);
615 return pservice;
616 }
617
618 /**
619 * Set a string value, deallocating any existing space, and allocing the space
620 * for the string
621 */
622 static bool lpcfg_string_set(TALLOC_CTX *mem_ctx, char **dest, const char *src)
623 {
624 talloc_free(*dest);
625
626 if (src == NULL)
627 src = "";
628
629 *dest = talloc_strdup(mem_ctx, src);
630 if ((*dest) == NULL) {
631 DEBUG(0,("Out of memory in string_set\n"));
632 return false;
633 }
634
635 return true;
636 }
637
638 /**
639 * Set a string value, deallocating any existing space, and allocing the space
640 * for the string
641 */
642 static bool lpcfg_string_set_upper(TALLOC_CTX *mem_ctx, char **dest, const char *src)
643 {
644 talloc_free(*dest);
645
646 if (src == NULL)
647 src = "";
648
649 *dest = strupper_talloc(mem_ctx, src);
650 if ((*dest) == NULL) {
651 DEBUG(0,("Out of memory in string_set_upper\n"));
652 return false;
653 }
654
655 return true;
656 }
657
658
659
660 /**
661 * Add a new service to the services array initialising it with the given
662 * service.
663 */
664
665 struct loadparm_service *lpcfg_add_service(struct loadparm_context *lp_ctx,
666 const struct loadparm_service *pservice,
667 const char *name)
668 {
669 int i;
670 struct loadparm_service tservice;
671 int num_to_alloc = lp_ctx->iNumServices + 1;
672 struct parmlist_entry *data, *pdata;
673
674 if (pservice == NULL) {
675 pservice = lp_ctx->sDefault;
676 }
677
678 tservice = *pservice;
679
680 /* it might already exist */
681 if (name) {
682 struct loadparm_service *service = getservicebyname(lp_ctx,
683 name);
684 if (service != NULL) {
685 /* Clean all parametric options for service */
686 /* They will be added during parsing again */
687 data = service->param_opt;
688 while (data) {
689 pdata = data->next;
690 talloc_free(data);
691 data = pdata;
692 }
693 service->param_opt = NULL;
694 return service;
695 }
696 }
697
698 /* find an invalid one */
699 for (i = 0; i < lp_ctx->iNumServices; i++)
700 if (lp_ctx->services[i] == NULL)
701 break;
702
703 /* if not, then create one */
704 if (i == lp_ctx->iNumServices) {
705 struct loadparm_service **tsp;
706
707 tsp = talloc_realloc(lp_ctx, lp_ctx->services, struct loadparm_service *, num_to_alloc);
708
709 if (!tsp) {
710 DEBUG(0,("lpcfg_add_service: failed to enlarge services!\n"));
711 return NULL;
712 } else {
713 lp_ctx->services = tsp;
714 lp_ctx->services[lp_ctx->iNumServices] = NULL;
715 }
716
717 lp_ctx->iNumServices++;
718 }
719
720 lp_ctx->services[i] = init_service(lp_ctx->services, lp_ctx->sDefault);
721 if (lp_ctx->services[i] == NULL) {
722 DEBUG(0,("lpcfg_add_service: out of memory!\n"));
723 return NULL;
724 }
725 copy_service(lp_ctx->services[i], &tservice, NULL);
726 if (name != NULL)
727 lpcfg_string_set(lp_ctx->services[i], &lp_ctx->services[i]->szService, name);
728 return lp_ctx->services[i];
729 }
730
731 /**
732 * Add a new home service, with the specified home directory, defaults coming
733 * from service ifrom.
734 */
735
736 bool lpcfg_add_home(struct loadparm_context *lp_ctx,
737 const char *pszHomename,
738 struct loadparm_service *default_service,
739 const char *user, const char *pszHomedir)
740 {
741 struct loadparm_service *service;
742
743 service = lpcfg_add_service(lp_ctx, default_service, pszHomename);
744
745 if (service == NULL)
746 return false;
747
748 if (!(*(default_service->szPath))
749 || strequal(default_service->szPath, lp_ctx->sDefault->szPath)) {
750 service->szPath = talloc_strdup(service, pszHomedir);
751 } else {
752 service->szPath = string_sub_talloc(service, lpcfg_pathname(default_service, lp_ctx->sDefault), "%H", pszHomedir);
753 }
754
755 if (!(*(service->comment))) {
756 service->comment = talloc_asprintf(service, "Home directory of %s", user);
757 }
758 service->bAvailable = default_service->bAvailable;
759 service->bBrowseable = default_service->bBrowseable;
760
761 DEBUG(3, ("adding home's share [%s] for user '%s' at '%s'\n",
762 pszHomename, user, service->szPath));
763
764 return true;
765 }
766
767 /**
768 * Add a new printer service, with defaults coming from service iFrom.
769 */
770
771 bool lpcfg_add_printer(struct loadparm_context *lp_ctx,
772 const char *pszPrintername,
773 struct loadparm_service *default_service)
774 {
775 const char *comment = "From Printcap";
776 struct loadparm_service *service;
777 service = lpcfg_add_service(lp_ctx, default_service, pszPrintername);
778
779 if (service == NULL)
780 return false;
781
782 /* note that we do NOT default the availability flag to True - */
783 /* we take it from the default service passed. This allows all */
784 /* dynamic printers to be disabled by disabling the [printers] */
785 /* entry (if/when the 'available' keyword is implemented!). */
786
787 /* the printer name is set to the service name. */
788 lpcfg_string_set(service, &service->szPrintername, pszPrintername);
789 lpcfg_string_set(service, &service->comment, comment);
790 service->bBrowseable = default_service->bBrowseable;
791 /* Printers cannot be read_only. */
792 service->bRead_only = false;
793 /* Printer services must be printable. */
794 service->bPrint_ok = true;
795
796 DEBUG(3, ("adding printer service %s\n", pszPrintername));
797
798 return true;
799 }
800
801 /**
802 * Map a parameter's string representation to something we can use.
803 * Returns False if the parameter string is not recognised, else TRUE.
804 */
805
806 static int map_parameter(const char *pszParmName)
807 {
808 int iIndex;
809
810 if (*pszParmName == '-')
811 return -1;
812
813 for (iIndex = 0; parm_table[iIndex].label; iIndex++)
814 if (strwicmp(parm_table[iIndex].label, pszParmName) == 0)
815 return iIndex;
816
817 /* Warn only if it isn't parametric option */
818 if (strchr(pszParmName, ':') == NULL)
819 DEBUG(0, ("Unknown parameter encountered: \"%s\"\n", pszParmName));
820 /* We do return 'fail' for parametric options as well because they are
821 stored in different storage
822 */
823 return -1;
824 }
825
826
827 /**
828 return the parameter structure for a parameter
829 */
830 struct parm_struct *lpcfg_parm_struct(struct loadparm_context *lp_ctx, const char *name)
831 {
832 int parmnum;
833
834 if (lp_ctx->s3_fns) {
835 return lp_ctx->s3_fns->get_parm_struct(name);
836 }
837
838 parmnum = map_parameter(name);
839 if (parmnum == -1) return NULL;
840 return &parm_table[parmnum];
841 }
842
843 /**
844 return the parameter pointer for a parameter
845 */
846 void *lpcfg_parm_ptr(struct loadparm_context *lp_ctx,
847 struct loadparm_service *service, struct parm_struct *parm)
848 {
849 if (lp_ctx->s3_fns) {
850 return lp_ctx->s3_fns->get_parm_ptr(service, parm);
851 }
852
853 if (service == NULL) {
854 if (parm->p_class == P_LOCAL)
855 return ((char *)lp_ctx->sDefault)+parm->offset;
856 else if (parm->p_class == P_GLOBAL)
857 return ((char *)lp_ctx->globals)+parm->offset;
858 else return NULL;
859 } else {
860 return ((char *)service) + parm->offset;
861 }
862 }
863
864 /**
865 return the parameter pointer for a parameter
866 */
867 bool lpcfg_parm_is_cmdline(struct loadparm_context *lp_ctx, const char *name)
868 {
869 int parmnum;
870
871 if (lp_ctx->s3_fns) {
872 struct parm_struct *parm = lp_ctx->s3_fns->get_parm_struct(name);
873 if (parm) {
874 return parm->flags & FLAG_CMDLINE;
875 }
876 return false;
877 }
878
879 parmnum = map_parameter(name);
880 if (parmnum == -1) return false;
881
882 return lp_ctx->flags[parmnum] & FLAG_CMDLINE;
883 }
884
885 /**
886 * Find a service by name. Otherwise works like get_service.
887 */
888
889 static struct loadparm_service *getservicebyname(struct loadparm_context *lp_ctx,
890 const char *pszServiceName)
891 {
892 int iService;
893
894 if (lp_ctx->s3_fns) {
895 return lp_ctx->s3_fns->get_service(pszServiceName);
896 }
897
898 for (iService = lp_ctx->iNumServices - 1; iService >= 0; iService--)
899 if (lp_ctx->services[iService] != NULL &&
900 strwicmp(lp_ctx->services[iService]->szService, pszServiceName) == 0) {
901 return lp_ctx->services[iService];
902 }
903
904 return NULL;
905 }
906
907 /**
908 * Copy a service structure to another.
909 * If pcopymapDest is NULL then copy all fields
910 */
911
912 static void copy_service(struct loadparm_service *pserviceDest,
913 struct loadparm_service *pserviceSource,
914 struct bitmap *pcopymapDest)
915 {
916 int i;
917 bool bcopyall = (pcopymapDest == NULL);
918 struct parmlist_entry *data, *pdata, *paramo;
919 bool not_added;
920
921 for (i = 0; parm_table[i].label; i++)
922 if (parm_table[i].p_class == P_LOCAL &&
923 (bcopyall || bitmap_query(pcopymapDest, i))) {
924 void *src_ptr =
925 ((char *)pserviceSource) + parm_table[i].offset;
926 void *dest_ptr =
927 ((char *)pserviceDest) + parm_table[i].offset;
928
929 switch (parm_table[i].type) {
930 case P_BOOL:
931 *(bool *)dest_ptr = *(bool *)src_ptr;
932 break;
933
934 case P_INTEGER:
935 case P_BYTES:
936 case P_OCTAL:
937 case P_ENUM:
938 *(int *)dest_ptr = *(int *)src_ptr;
939 break;
940
941 case P_STRING:
942 lpcfg_string_set(pserviceDest,
943 (char **)dest_ptr,
944 *(char **)src_ptr);
945 break;
946
947 case P_USTRING:
948 lpcfg_string_set_upper(pserviceDest,
949 (char **)dest_ptr,
950 *(char **)src_ptr);
951 break;
952 case P_LIST:
953 *(const char ***)dest_ptr = (const char **)str_list_copy(pserviceDest,
954 *(const char ***)src_ptr);
955 break;
956 default:
957 break;
958 }
959 }
960
961 if (bcopyall) {
962 init_copymap(pserviceDest);
963 if (pserviceSource->copymap)
964 bitmap_copy(pserviceDest->copymap,
965 pserviceSource->copymap);
966 }
967
968 data = pserviceSource->param_opt;
969 while (data) {
970 not_added = true;
971 pdata = pserviceDest->param_opt;
972 /* Traverse destination */
973 while (pdata) {
974 /* If we already have same option, override it */
975 if (strcmp(pdata->key, data->key) == 0) {
976 talloc_free(pdata->value);
977 pdata->value = talloc_strdup(pdata,
978 data->value);
979 not_added = false;
980 break;
981 }
982 pdata = pdata->next;
983 }
984 if (not_added) {
985 paramo = talloc_zero(pserviceDest, struct parmlist_entry);
986 if (paramo == NULL)
987 smb_panic("OOM");
988 paramo->key = talloc_strdup(paramo, data->key);
989 paramo->value = talloc_strdup(paramo, data->value);
990 DLIST_ADD(pserviceDest->param_opt, paramo);
991 }
992 data = data->next;
993 }
994 }
995
996 /**
997 * Check a service for consistency. Return False if the service is in any way
998 * incomplete or faulty, else True.
999 */
1000 static bool lpcfg_service_ok(struct loadparm_service *service)
1001 {
1002 bool bRetval;
1003
1004 bRetval = true;
1005 if (service->szService[0] == '\0') {
1006 DEBUG(0, ("The following message indicates an internal error:\n"));
1007 DEBUG(0, ("No service name in service entry.\n"));
1008 bRetval = false;
1009 }
1010
1011 /* The [printers] entry MUST be printable. I'm all for flexibility, but */
1012 /* I can't see why you'd want a non-printable printer service... */
1013 if (strwicmp(service->szService, PRINTERS_NAME) == 0) {
1014 if (!service->bPrint_ok) {
1015 DEBUG(0, ("WARNING: [%s] service MUST be printable!\n",
1016 service->szService));
1017 service->bPrint_ok = true;
1018 }
1019 /* [printers] service must also be non-browsable. */
1020 if (service->bBrowseable)
1021 service->bBrowseable = false;
1022 }
1023
1024 /* If a service is flagged unavailable, log the fact at level 0. */
1025 if (!service->bAvailable)
1026 DEBUG(1, ("NOTE: Service %s is flagged unavailable.\n",
1027 service->szService));
1028
1029 return bRetval;
1030 }
1031
1032
1033 /*******************************************************************
1034 Keep a linked list of all config files so we know when one has changed
1035 it's date and needs to be reloaded.
1036 ********************************************************************/
1037
1038 static void add_to_file_list(struct loadparm_context *lp_ctx,
1039 const char *fname, const char *subfname)
1040 {
1041 struct file_lists *f = lp_ctx->file_lists;
1042
1043 while (f) {
1044 if (f->name && !strcmp(f->name, fname))
1045 break;
1046 f = f->next;
1047 }
1048
1049 if (!f) {
1050 f = talloc(lp_ctx, struct file_lists);
1051 if (!f)
1052 return;
1053 f->next = lp_ctx->file_lists;
1054 f->name = talloc_strdup(f, fname);
1055 if (!f->name) {
1056 talloc_free(f);
1057 return;
1058 }
1059 f->subfname = talloc_strdup(f, subfname);
1060 if (!f->subfname) {
1061 talloc_free(f);
1062 return;
1063 }
1064 lp_ctx->file_lists = f;
1065 f->modtime = file_modtime(subfname);
1066 } else {
1067 time_t t = file_modtime(subfname);
1068 if (t)
1069 f->modtime = t;
1070 }
1071 }
1072
1073 /*******************************************************************
1074 Check if a config file has changed date.
1075 ********************************************************************/
1076 bool lpcfg_file_list_changed(struct loadparm_context *lp_ctx)
1077 {
1078 struct file_lists *f;
1079 DEBUG(6, ("lp_file_list_changed()\n"));
1080
1081 for (f = lp_ctx->file_lists; f != NULL; f = f->next) {
1082 char *n2;
1083 time_t mod_time;
1084
1085 n2 = standard_sub_basic(lp_ctx, f->name);
1086
1087 DEBUGADD(6, ("file %s -> %s last mod_time: %s\n",
1088 f->name, n2, ctime(&f->modtime)));
1089
1090 mod_time = file_modtime(n2);
1091
1092 if (mod_time && ((f->modtime != mod_time) || (f->subfname == NULL) || (strcmp(n2, f->subfname) != 0))) {
1093 DEBUGADD(6, ("file %s modified: %s\n", n2,
1094 ctime(&mod_time)));
1095 f->modtime = mod_time;
1096 talloc_free(f->subfname);
1097 f->subfname = talloc_strdup(f, n2);
1098 return true;
1099 }
1100 }
1101 return false;
1102 }
1103
1104 /***************************************************************************
1105 Handle the "realm" parameter
1106 ***************************************************************************/
1107
1108 static bool handle_realm(struct loadparm_context *lp_ctx, int unused,
1109 const char *pszParmValue, char **ptr)
1110 {
1111 lpcfg_string_set(lp_ctx, ptr, pszParmValue);
1112
1113 talloc_free(lp_ctx->globals->szRealm_upper);
1114 talloc_free(lp_ctx->globals->szRealm_lower);
1115
1116 lp_ctx->globals->szRealm_upper = strupper_talloc(lp_ctx, pszParmValue);
1117 lp_ctx->globals->szRealm_lower = strlower_talloc(lp_ctx, pszParmValue);
1118
1119 return true;
1120 }
1121
1122 /***************************************************************************
1123 Handle the include operation.
1124 ***************************************************************************/
1125
1126 static bool handle_include(struct loadparm_context *lp_ctx, int unused,
1127 const char *pszParmValue, char **ptr)
1128 {
1129 char *fname = standard_sub_basic(lp_ctx, pszParmValue);
1130
1131 add_to_file_list(lp_ctx, pszParmValue, fname);
1132
1133 lpcfg_string_set(lp_ctx, ptr, fname);
1134
1135 if (file_exist(fname))
1136 return pm_process(fname, do_section, do_parameter, lp_ctx);
1137
1138 DEBUG(2, ("Can't find include file %s\n", fname));
1139
1140 return false;
1141 }
1142
1143 /***************************************************************************
1144 Handle the interpretation of the copy parameter.
1145 ***************************************************************************/
1146
1147 static bool handle_copy(struct loadparm_context *lp_ctx, int unused,
1148 const char *pszParmValue, char **ptr)
1149 {
1150 bool bRetval;
1151 struct loadparm_service *serviceTemp;
1152
1153 lpcfg_string_set(lp_ctx, ptr, pszParmValue);
1154
1155 bRetval = false;
1156
1157 DEBUG(3, ("Copying service from service %s\n", pszParmValue));
1158
1159 if ((serviceTemp = getservicebyname(lp_ctx, pszParmValue)) != NULL) {
1160 if (serviceTemp == lp_ctx->currentService) {
1161 DEBUG(0, ("Can't copy service %s - unable to copy self!\n", pszParmValue));
1162 } else {
1163 copy_service(lp_ctx->currentService,
1164 serviceTemp,
1165 lp_ctx->currentService->copymap);
1166 bRetval = true;
1167 }
1168 } else {
1169 DEBUG(0, ("Unable to copy service - source not found: %s\n",
1170 pszParmValue));
1171 bRetval = false;
1172 }
1173
1174 return bRetval;
1175 }
1176
1177 static bool handle_debug_list(struct loadparm_context *lp_ctx, int unused,
1178 const char *pszParmValue, char **ptr)
1179 {
1180
1181 lpcfg_string_set(lp_ctx, ptr, pszParmValue);
1182 if (lp_ctx->global) {
1183 return debug_parse_levels(pszParmValue);
1184 }
1185 return true;
1186 }
1187
1188 static bool handle_logfile(struct loadparm_context *lp_ctx, int unused,
1189 const char *pszParmValue, char **ptr)
1190 {
1191 debug_set_logfile(pszParmValue);
1192 if (lp_ctx->global) {
1193 lpcfg_string_set(lp_ctx, ptr, pszParmValue);
1194 }
1195 return true;
1196 }
1197
1198 /***************************************************************************
1199 Initialise a copymap.
1200 ***************************************************************************/
1201
1202 static void init_copymap(struct loadparm_service *pservice)
1203 {
1204 int i;
1205
1206 TALLOC_FREE(pservice->copymap);
1207
1208 pservice->copymap = bitmap_talloc(NULL, NUMPARAMETERS);
1209 if (!pservice->copymap)
1210 DEBUG(0,
1211 ("Couldn't allocate copymap!! (size %d)\n",
1212 (int)NUMPARAMETERS));
1213 else
1214 for (i = 0; i < NUMPARAMETERS; i++)
1215 bitmap_set(pservice->copymap, i);
1216 }
1217
1218 /**
1219 * Process a parametric option
1220 */
1221 static bool lp_do_parameter_parametric(struct loadparm_context *lp_ctx,
1222 struct loadparm_service *service,
1223 const char *pszParmName,
1224 const char *pszParmValue, int flags)
1225 {
1226 struct parmlist_entry *paramo, *data;
1227 char *name;
1228 TALLOC_CTX *mem_ctx;
1229
1230 while (isspace((unsigned char)*pszParmName)) {
1231 pszParmName++;
1232 }
1233
1234 name = strlower_talloc(lp_ctx, pszParmName);
1235 if (!name) return false;
1236
1237 if (service == NULL) {
1238 data = lp_ctx->globals->param_opt;
1239 mem_ctx = lp_ctx->globals;
1240 } else {
1241 data = service->param_opt;
1242 mem_ctx = service;
1243 }
1244
1245 /* Traverse destination */
1246 for (paramo=data; paramo; paramo=paramo->next) {
1247 /* If we already have the option set, override it unless
1248 it was a command line option and the new one isn't */
1249 if (strcmp(paramo->key, name) == 0) {
1250 if ((paramo->priority & FLAG_CMDLINE) &&
1251 !(flags & FLAG_CMDLINE)) {
1252 talloc_free(name);
1253 return true;
1254 }
1255
1256 talloc_free(paramo->value);
1257 paramo->value = talloc_strdup(paramo, pszParmValue);
1258 paramo->priority = flags;
1259 talloc_free(name);
1260 return true;
1261 }
1262 }
1263
1264 paramo = talloc_zero(mem_ctx, struct parmlist_entry);
1265 if (!paramo)
1266 smb_panic("OOM");
1267 paramo->key = talloc_strdup(paramo, name);
1268 paramo->value = talloc_strdup(paramo, pszParmValue);
1269 paramo->priority = flags;
1270 if (service == NULL) {
1271 DLIST_ADD(lp_ctx->globals->param_opt, paramo);
1272 } else {
1273 DLIST_ADD(service->param_opt, paramo);
1274 }
1275
1276 talloc_free(name);
1277
1278 return true;
1279 }
1280
1281 static bool set_variable(TALLOC_CTX *mem_ctx, int parmnum, void *parm_ptr,
1282 const char *pszParmName, const char *pszParmValue,
1283 struct loadparm_context *lp_ctx, bool on_globals)
1284 {
1285 int i;
1286 /* if it is a special case then go ahead */
1287 if (parm_table[parmnum].special) {
1288 bool ret;
1289 ret = parm_table[parmnum].special(lp_ctx, -1, pszParmValue,
1290 (char **)parm_ptr);
1291 if (!ret) {
1292 return false;
1293 }
1294 goto mark_non_default;
1295 }
1296
1297 /* now switch on the type of variable it is */
1298 switch (parm_table[parmnum].type)
1299 {
1300 case P_BOOL: {
1301 bool b;
1302 if (!set_boolean(pszParmValue, &b)) {
1303 DEBUG(0,("lp_do_parameter(%s): value is not boolean!\n", pszParmValue));
1304 return false;
1305 }
1306 *(bool *)parm_ptr = b;
1307 }
1308 break;
1309
1310 case P_BOOLREV: {
1311 bool b;
1312 if (!set_boolean(pszParmValue, &b)) {
1313 DEBUG(0,("lp_do_parameter(%s): value is not boolean!\n", pszParmValue));
1314 return false;
1315 }
1316 *(bool *)parm_ptr = !b;
1317 }
1318 break;
1319
1320 case P_INTEGER:
1321 *(int *)parm_ptr = atoi(pszParmValue);
1322 break;
1323
1324 case P_CHAR:
1325 *(char *)parm_ptr = *pszParmValue;
1326 break;
1327
1328 case P_OCTAL:
1329 *(int *)parm_ptr = strtol(pszParmValue, NULL, 8);
1330 break;
1331
1332 case P_BYTES:
1333 {
1334 uint64_t val;
1335 if (conv_str_size_error(pszParmValue, &val)) {
1336 if (val <= INT_MAX) {
1337 *(int *)parm_ptr = (int)val;
1338 break;
1339 }
1340 }
1341
1342 DEBUG(0,("lp_do_parameter(%s): value is not "
1343 "a valid size specifier!\n", pszParmValue));
1344 return false;
1345 }
1346
1347 case P_CMDLIST:
1348 *(const char ***)parm_ptr = (const char **)str_list_make(mem_ctx,
1349 pszParmValue, NULL);
1350 break;
1351 case P_LIST:
1352 {
1353 char **new_list = str_list_make(mem_ctx,
1354 pszParmValue, NULL);
1355 for (i=0; new_list[i]; i++) {
1356 if (*(const char ***)parm_ptr != NULL &&
1357 new_list[i][0] == '+' &&
1358 new_list[i][1])
1359 {
1360 if (!str_list_check(*(const char ***)parm_ptr,
1361 &new_list[i][1])) {
1362 *(const char ***)parm_ptr = str_list_add(*(const char ***)parm_ptr,
1363 &new_list[i][1]);
1364 }
1365 } else if (*(const char ***)parm_ptr != NULL &&
1366 new_list[i][0] == '-' &&
1367 new_list[i][1])
1368 {
1369 str_list_remove(*(const char ***)parm_ptr,
1370 &new_list[i][1]);
1371 } else {
1372 if (i != 0) {
1373 DEBUG(0, ("Unsupported list syntax for: %s = %s\n",
1374 pszParmName, pszParmValue));
1375 return false;
1376 }
1377 *(const char ***)parm_ptr = (const char **) new_list;
1378 break;
1379 }
1380 }
1381 break;
1382 }
1383 case P_STRING:
1384 lpcfg_string_set(mem_ctx, (char **)parm_ptr, pszParmValue);
1385 break;
1386
1387 case P_USTRING:
1388 lpcfg_string_set_upper(mem_ctx, (char **)parm_ptr, pszParmValue);
1389 break;
1390
1391 case P_ENUM:
1392 for (i = 0; parm_table[parmnum].enum_list[i].name; i++) {
1393 if (strequal
1394 (pszParmValue,
1395 parm_table[parmnum].enum_list[i].name)) {
1396 *(int *)parm_ptr =
1397 parm_table[parmnum].
1398 enum_list[i].value;
1399 break;
1400 }
1401 }
1402 if (!parm_table[parmnum].enum_list[i].name) {
1403 DEBUG(0,("Unknown enumerated value '%s' for '%s'\n",
1404 pszParmValue, pszParmName));
1405 return false;
1406 }
1407 break;
1408
1409 case P_SEP:
1410 break;
1411 }
1412
1413 mark_non_default:
1414 if (on_globals && (lp_ctx->flags[parmnum] & FLAG_DEFAULT)) {
1415 lp_ctx->flags[parmnum] &= ~FLAG_DEFAULT;
1416 /* we have to also unset FLAG_DEFAULT on aliases */
1417 for (i=parmnum-1;i>=0 && parm_table[i].offset == parm_table[parmnum].offset;i--) {
1418 lp_ctx->flags[i] &= ~FLAG_DEFAULT;
1419 }
1420 for (i=parmnum+1;i<NUMPARAMETERS && parm_table[i].offset == parm_table[parmnum].offset;i++) {
1421 lp_ctx->flags[i] &= ~FLAG_DEFAULT;
1422 }
1423 }
1424 return true;
1425 }
1426
1427
1428 bool lpcfg_do_global_parameter(struct loadparm_context *lp_ctx,
1429 const char *pszParmName, const char *pszParmValue)
1430 {
1431 int parmnum = map_parameter(pszParmName);
1432 void *parm_ptr;
1433
1434 if (parmnum < 0) {
1435 if (strchr(pszParmName, ':')) {
1436 return lp_do_parameter_parametric(lp_ctx, NULL, pszParmName, pszParmValue, 0);
1437 }
1438 DEBUG(0, ("Ignoring unknown parameter \"%s\"\n", pszParmName));
1439 return true;
1440 }
1441
1442 /* if the flag has been set on the command line, then don't allow override,
1443 but don't report an error */
1444 if (lp_ctx->flags[parmnum] & FLAG_CMDLINE) {
1445 return true;
1446 }
1447
1448 parm_ptr = lpcfg_parm_ptr(lp_ctx, NULL, &parm_table[parmnum]);
1449
1450 return set_variable(lp_ctx->globals, parmnum, parm_ptr,
1451 pszParmName, pszParmValue, lp_ctx, true);
1452 }
1453
1454 bool lpcfg_do_service_parameter(struct loadparm_context *lp_ctx,
1455 struct loadparm_service *service,
1456 const char *pszParmName, const char *pszParmValue)
1457 {
1458 void *parm_ptr;
1459 int i;
1460 int parmnum = map_parameter(pszParmName);
1461
1462 if (parmnum < 0) {
1463 if (strchr(pszParmName, ':')) {
1464 return lp_do_parameter_parametric(lp_ctx, service, pszParmName, pszParmValue, 0);
1465 }
1466 DEBUG(0, ("Ignoring unknown parameter \"%s\"\n", pszParmName));
1467 return true;
1468 }
1469
1470 /* if the flag has been set on the command line, then don't allow override,
1471 but don't report an error */
1472 if (lp_ctx->flags[parmnum] & FLAG_CMDLINE) {
1473 return true;
1474 }
1475
1476 if (parm_table[parmnum].p_class == P_GLOBAL) {
1477 DEBUG(0,
1478 ("Global parameter %s found in service section!\n",
1479 pszParmName));
1480 return true;
1481 }
1482 parm_ptr = ((char *)service) + parm_table[parmnum].offset;
1483
1484 if (!service->copymap)
1485 init_copymap(service);
1486
1487 /* this handles the aliases - set the copymap for other
1488 * entries with the same data pointer */
1489 for (i = 0; parm_table[i].label; i++)
1490 if (parm_table[i].offset == parm_table[parmnum].offset &&
1491 parm_table[i].p_class == parm_table[parmnum].p_class)
1492 bitmap_clear(service->copymap, i);
1493
1494 return set_variable(service, parmnum, parm_ptr, pszParmName,
1495 pszParmValue, lp_ctx, false);
1496 }
1497
1498 /**
1499 * Process a parameter.
1500 */
1501
1502 static bool do_parameter(const char *pszParmName, const char *pszParmValue,
1503 void *userdata)
1504 {
1505 struct loadparm_context *lp_ctx = (struct loadparm_context *)userdata;
1506
1507 if (lp_ctx->bInGlobalSection)
1508 return lpcfg_do_global_parameter(lp_ctx, pszParmName,
1509 pszParmValue);
1510 else
1511 return lpcfg_do_service_parameter(lp_ctx, lp_ctx->currentService,
1512 pszParmName, pszParmValue);
1513 }
1514
1515 /*
1516 variable argument do parameter
1517 */
1518 bool lpcfg_do_global_parameter_var(struct loadparm_context *lp_ctx, const char *pszParmName, const char *fmt, ...) PRINTF_ATTRIBUTE(3, 4);
1519 bool lpcfg_do_global_parameter_var(struct loadparm_context *lp_ctx,
1520 const char *pszParmName, const char *fmt, ...)
1521 {
1522 char *s;
1523 bool ret;
1524 va_list ap;
1525
1526 va_start(ap, fmt);
1527 s = talloc_vasprintf(NULL, fmt, ap);
1528 va_end(ap);
1529 ret = lpcfg_do_global_parameter(lp_ctx, pszParmName, s);
1530 talloc_free(s);
1531 return ret;
1532 }
1533
1534
1535 /*
1536 set a parameter from the commandline - this is called from command line parameter
1537 parsing code. It sets the parameter then marks the parameter as unable to be modified
1538 by smb.conf processing
1539 */
1540 bool lpcfg_set_cmdline(struct loadparm_context *lp_ctx, const char *pszParmName,
1541 const char *pszParmValue)
1542 {
1543 int parmnum;
1544 int i;
1545
1546 if (lp_ctx->s3_fns) {
1547 return lp_ctx->s3_fns->set_cmdline(pszParmName, pszParmValue);
1548 }
1549
1550 parmnum = map_parameter(pszParmName);
1551
1552 while (isspace((unsigned char)*pszParmValue)) pszParmValue++;
1553
1554
1555 if (parmnum < 0 && strchr(pszParmName, ':')) {
1556 /* set a parametric option */
1557 return lp_do_parameter_parametric(lp_ctx, NULL, pszParmName,
1558 pszParmValue, FLAG_CMDLINE);
1559 }
1560
1561 if (parmnum < 0) {
1562 DEBUG(0,("Unknown option '%s'\n", pszParmName));
1563 return false;
1564 }
1565
1566 /* reset the CMDLINE flag in case this has been called before */
1567 lp_ctx->flags[parmnum] &= ~FLAG_CMDLINE;
1568
1569 if (!lpcfg_do_global_parameter(lp_ctx, pszParmName, pszParmValue)) {
1570 return false;
1571 }
1572
1573 lp_ctx->flags[parmnum] |= FLAG_CMDLINE;
1574
1575 /* we have to also set FLAG_CMDLINE on aliases */
1576 for (i=parmnum-1;i>=0 && parm_table[i].offset == parm_table[parmnum].offset;i--) {
1577 lp_ctx->flags[i] |= FLAG_CMDLINE;
1578 }
1579 for (i=parmnum+1;i<NUMPARAMETERS && parm_table[i].offset == parm_table[parmnum].offset;i++) {
1580 lp_ctx->flags[i] |= FLAG_CMDLINE;
1581 }
1582
1583 return true;
1584 }
1585
1586 /*
1587 set a option from the commandline in 'a=b' format. Use to support --option
1588 */
1589 bool lpcfg_set_option(struct loadparm_context *lp_ctx, const char *option)
1590 {
1591 char *p, *s;
1592 bool ret;
1593
1594 s = talloc_strdup(NULL, option);
1595 if (!s) {
1596 return false;
1597 }
1598
1599 p = strchr(s, '=');
1600 if (!p) {
1601 talloc_free(s);
1602 return false;
1603 }
1604
1605 *p = 0;
1606
1607 ret = lpcfg_set_cmdline(lp_ctx, s, p+1);
1608 talloc_free(s);
1609 return ret;
1610 }
1611
1612
1613 #define BOOLSTR(b) ((b) ? "Yes" : "No")
1614
1615 /**
1616 * Print a parameter of the specified type.
1617 */
1618
1619 static void print_parameter(struct parm_struct *p, void *ptr, FILE * f)
1620 {
1621 /* For the seperation of lists values that we print below */
1622 const char *list_sep = ", ";
1623 int i;
1624 switch (p->type)
1625 {
1626 case P_ENUM:
1627 for (i = 0; p->enum_list[i].name; i++) {
1628 if (*(int *)ptr == p->enum_list[i].value) {
1629 fprintf(f, "%s",
1630 p->enum_list[i].name);
1631 break;
1632 }
1633 }
1634 break;
1635
1636 case P_BOOL:
1637 fprintf(f, "%s", BOOLSTR(*(bool *)ptr));
1638 break;
1639
1640 case P_BOOLREV:
1641 fprintf(f, "%s", BOOLSTR(!*(bool *)ptr));
1642 break;
1643
1644 case P_INTEGER:
1645 case P_BYTES:
1646 fprintf(f, "%d", *(int *)ptr);
1647 break;
1648
1649 case P_CHAR:
1650 fprintf(f, "%c", *(char *)ptr);
1651 break;
1652
1653 case P_OCTAL: {
1654 int val = *(int *)ptr;
1655 if (val == -1) {
1656 fprintf(f, "-1");
1657 } else {
1658 fprintf(f, "0%o", val);
1659 }
1660 break;
1661 }
1662
1663 case P_CMDLIST:
1664 list_sep = " ";
1665 /* fall through */
1666 case P_LIST:
1667 if ((char ***)ptr && *(char ***)ptr) {
1668 char **list = *(char ***)ptr;
1669 for (; *list; list++) {
1670 /* surround strings with whitespace in double quotes */
1671 if (*(list+1) == NULL) {
1672 /* last item, no extra separator */
1673 list_sep = "";
1674 }
1675 if ( strchr_m( *list, ' ' ) ) {
1676 fprintf(f, "\"%s\"%s", *list, list_sep);
1677 } else {
1678 fprintf(f, "%s%s", *list, list_sep);
1679 }
1680 }
1681 }
1682 break;
1683
1684 case P_STRING:
1685 case P_USTRING:
1686 if (*(char **)ptr) {
1687 fprintf(f, "%s", *(char **)ptr);
1688 }
1689 break;
1690 case P_SEP:
1691 break;
1692 }
1693 }
1694
1695 /**
1696 * Check if two parameters are equal.
1697 */
1698
1699 static bool equal_parameter(parm_type type, void *ptr1, void *ptr2)
1700 {
1701 switch (type) {
1702 case P_BOOL:
1703 case P_BOOLREV:
1704 return (*((bool *)ptr1) == *((bool *)ptr2));
1705
1706 case P_INTEGER:
1707 case P_ENUM:
1708 case P_OCTAL:
1709 case P_BYTES:
1710 return (*((int *)ptr1) == *((int *)ptr2));
1711
1712 case P_CHAR:
1713 return (*((char *)ptr1) == *((char *)ptr2));
1714
1715 case P_LIST:
1716 case P_CMDLIST:
1717 return str_list_equal(*(const char ***)ptr1, *(const char ***)ptr2);
1718
1719 case P_STRING:
1720 case P_USTRING:
1721 {
1722 char *p1 = *(char **)ptr1, *p2 = *(char **)ptr2;
1723 if (p1 && !*p1)
1724 p1 = NULL;
1725 if (p2 && !*p2)
1726 p2 = NULL;
1727 return (p1 == p2 || strequal(p1, p2));
1728 }
1729 case P_SEP:
1730 break;
1731 }
1732 return false;
1733 }
1734
1735 /**
1736 * Process a new section (service).
1737 *
1738 * At this stage all sections are services.
1739 * Later we'll have special sections that permit server parameters to be set.
1740 * Returns True on success, False on failure.
1741 */
1742
1743 static bool do_section(const char *pszSectionName, void *userdata)
1744 {
1745 struct loadparm_context *lp_ctx = (struct loadparm_context *)userdata;
1746 bool bRetval;
1747 bool isglobal = ((strwicmp(pszSectionName, GLOBAL_NAME) == 0) ||
1748 (strwicmp(pszSectionName, GLOBAL_NAME2) == 0));
1749 bRetval = false;
1750
1751 /* if we've just struck a global section, note the fact. */
1752 lp_ctx->bInGlobalSection = isglobal;
1753
1754 /* check for multiple global sections */
1755 if (lp_ctx->bInGlobalSection) {
1756 DEBUG(4, ("Processing section \"[%s]\"\n", pszSectionName));
1757 return true;
1758 }
1759
1760 /* if we have a current service, tidy it up before moving on */
1761 bRetval = true;
1762
1763 if (lp_ctx->currentService != NULL)
1764 bRetval = lpcfg_service_ok(lp_ctx->currentService);
1765
1766 /* if all is still well, move to the next record in the services array */
1767 if (bRetval) {
1768 /* We put this here to avoid an odd message order if messages are */
1769 /* issued by the post-processing of a previous section. */
1770 DEBUG(4, ("Processing section \"[%s]\"\n", pszSectionName));
1771
1772 if ((lp_ctx->currentService = lpcfg_add_service(lp_ctx, lp_ctx->sDefault,
1773 pszSectionName))
1774 == NULL) {
1775 DEBUG(0, ("Failed to add a new service\n"));
1776 return false;
1777 }
1778 }
1779
1780 return bRetval;
1781 }
1782
1783
1784 /**
1785 * Determine if a particular base parameter is currently set to the default value.
1786 */
1787
1788 static bool is_default(struct loadparm_service *sDefault, int i)
1789 {
1790 void *def_ptr = ((char *)sDefault) + parm_table[i].offset;
1791 if (!defaults_saved)
1792 return false;
1793 switch (parm_table[i].type) {
1794 case P_CMDLIST:
1795 case P_LIST:
1796 return str_list_equal((const char **)parm_table[i].def.lvalue,
1797 (const char **)def_ptr);
1798 case P_STRING:
1799 case P_USTRING:
1800 return strequal(parm_table[i].def.svalue,
1801 *(char **)def_ptr);
1802 case P_BOOL:
1803 case P_BOOLREV:
1804 return parm_table[i].def.bvalue ==
1805 *(bool *)def_ptr;
1806 case P_INTEGER:
1807 case P_CHAR:
1808 case P_OCTAL:
1809 case P_BYTES:
1810 case P_ENUM:
1811 return parm_table[i].def.ivalue ==
1812 *(int *)def_ptr;
1813 case P_SEP:
1814 break;
1815 }
1816 return false;
1817 }
1818
1819 /**
1820 *Display the contents of the global structure.
1821 */
1822
1823 static void dump_globals(struct loadparm_context *lp_ctx, FILE *f,
1824 bool show_defaults)
1825 {
1826 int i;
1827 struct parmlist_entry *data;
1828
1829 fprintf(f, "# Global parameters\n[global]\n");
1830
1831 for (i = 0; parm_table[i].label; i++)
1832 if (parm_table[i].p_class == P_GLOBAL &&
1833 (i == 0 || (parm_table[i].offset != parm_table[i - 1].offset))) {
1834 if (!show_defaults && (lp_ctx->flags[i] & FLAG_DEFAULT))
1835 continue;
1836 fprintf(f, "\t%s = ", parm_table[i].label);
1837 print_parameter(&parm_table[i], lpcfg_parm_ptr(lp_ctx, NULL, &parm_table[i]), f);
1838 fprintf(f, "\n");
1839 }
1840 if (lp_ctx->globals->param_opt != NULL) {
1841 for (data = lp_ctx->globals->param_opt; data;
1842 data = data->next) {
1843 if (!show_defaults && (data->priority & FLAG_DEFAULT)) {
1844 continue;
1845 }
1846 fprintf(f, "\t%s = %s\n", data->key, data->value);
1847 }
1848 }
1849
1850 }
1851
1852 /**
1853 * Display the contents of a single services record.
1854 */
1855
1856 static void dump_a_service(struct loadparm_service * pService, struct loadparm_service *sDefault, FILE * f,
1857 unsigned int *flags)
1858 {
1859 int i;
1860 struct parmlist_entry *data;
1861
1862 if (pService != sDefault)
1863 fprintf(f, "\n[%s]\n", pService->szService);
1864
1865 for (i = 0; parm_table[i].label; i++) {
1866 if (parm_table[i].p_class == P_LOCAL &&
1867 (*parm_table[i].label != '-') &&
1868 (i == 0 || (parm_table[i].offset != parm_table[i - 1].offset)))
1869 {
1870 if (pService == sDefault) {
1871 if (flags && (flags[i] & FLAG_DEFAULT)) {
1872 continue;
1873 }
1874 if (defaults_saved) {
1875 if (is_default(sDefault, i)) {
1876 continue;
1877 }
1878 }
1879 } else {
1880 if (equal_parameter(parm_table[i].type,
1881 ((char *)pService) +
1882 parm_table[i].offset,
1883 ((char *)sDefault) +
1884 parm_table[i].offset))
1885 continue;
1886 }
1887
1888 fprintf(f, "\t%s = ", parm_table[i].label);
1889 print_parameter(&parm_table[i],
1890 ((char *)pService) + parm_table[i].offset, f);
1891 fprintf(f, "\n");
1892 }
1893 }
1894 if (pService->param_opt != NULL) {
1895 for (data = pService->param_opt; data; data = data->next) {
1896 fprintf(f, "\t%s = %s\n", data->key, data->value);
1897 }
1898 }
1899 }
1900
1901 bool lpcfg_dump_a_parameter(struct loadparm_context *lp_ctx,
1902 struct loadparm_service *service,
1903 const char *parm_name, FILE * f)
1904 {
1905 struct parm_struct *parm;
1906 void *ptr;
1907
1908 parm = lpcfg_parm_struct(lp_ctx, parm_name);
1909 if (!parm) {
1910 return false;
1911 }
1912
1913 ptr = lpcfg_parm_ptr(lp_ctx, service,parm);
1914
1915 print_parameter(parm, ptr, f);
1916 fprintf(f, "\n");
1917 return true;
1918 }
1919
1920 /**
1921 * Return info about the next parameter in a service.
1922 * snum==-1 gives the globals.
1923 * Return NULL when out of parameters.
1924 */
1925
1926
1927 struct parm_struct *lpcfg_next_parameter(struct loadparm_context *lp_ctx, int snum, int *i,
1928 int allparameters)
1929 {
1930 if (snum == -1) {
1931 /* do the globals */
1932 for (; parm_table[*i].label; (*i)++) {
1933 if ((*parm_table[*i].label == '-'))
1934 continue;
1935
1936 if ((*i) > 0
1937 && (parm_table[*i].offset ==
1938 parm_table[(*i) - 1].offset)
1939 && (parm_table[*i].p_class ==
1940 parm_table[(*i) - 1].p_class))
1941 continue;
1942
1943 return &parm_table[(*i)++];
1944 }
1945 } else {
1946 struct loadparm_service *pService = lp_ctx->services[snum];
1947
1948 for (; parm_table[*i].label; (*i)++) {
1949 if (parm_table[*i].p_class == P_LOCAL &&
1950 (*parm_table[*i].label != '-') &&
1951 ((*i) == 0 ||
1952 (parm_table[*i].offset !=
1953 parm_table[(*i) - 1].offset)))
1954 {
1955 if (allparameters ||
1956 !equal_parameter(parm_table[*i].type,
1957 ((char *)pService) +
1958 parm_table[*i].offset,
1959 ((char *)lp_ctx->sDefault) +
1960 parm_table[*i].offset))
1961 {
1962 return &parm_table[(*i)++];
1963 }
1964 }
1965 }
1966 }
1967
1968 return NULL;
1969 }
1970
1971
1972 /**
1973 * Auto-load some home services.
1974 */
1975 static void lpcfg_add_auto_services(struct loadparm_context *lp_ctx,
1976 const char *str)
1977 {
1978 return;
1979 }
1980
1981
1982 /**
1983 * Unload unused services.
1984 */
1985
1986 void lpcfg_killunused(struct loadparm_context *lp_ctx,
1987 struct smbsrv_connection *smb,
1988 bool (*snumused) (struct smbsrv_connection *, int))
1989 {
1990 int i;
1991 for (i = 0; i < lp_ctx->iNumServices; i++) {
1992 if (lp_ctx->services[i] == NULL)
1993 continue;
1994
1995 if (!snumused || !snumused(smb, i)) {
1996 talloc_free(lp_ctx->services[i]);
1997 lp_ctx->services[i] = NULL;
1998 }
1999 }
2000 }
2001
2002
2003 static int lpcfg_destructor(struct loadparm_context *lp_ctx)
2004 {
2005 struct parmlist_entry *data;
2006
2007 if (lp_ctx->refuse_free) {
2008 /* someone is trying to free the
2009 global_loadparm_context.
2010 We can't allow that. */
2011 return -1;
2012 }
2013
2014 if (lp_ctx->globals->param_opt != NULL) {
2015 struct parmlist_entry *next;
2016 for (data = lp_ctx->globals->param_opt; data; data=next) {
2017 next = data->next;
2018 if (data->priority & FLAG_CMDLINE) continue;
2019 DLIST_REMOVE(lp_ctx->globals->param_opt, data);
2020 talloc_free(data);
2021 }
2022 }
2023
2024 return 0;
2025 }
2026
2027 /**
2028 * Initialise the global parameter structure.
2029 *
2030 * Note that most callers should use loadparm_init_global() instead
2031 */
2032 struct loadparm_context *loadparm_init(TALLOC_CTX *mem_ctx)
2033 {
2034 int i;
2035 char *myname;
2036 struct loadparm_context *lp_ctx;
2037 struct parmlist_entry *parm;
2038 char *logfile;
2039
2040 lp_ctx = talloc_zero(mem_ctx, struct loadparm_context);
2041 if (lp_ctx == NULL)
2042 return NULL;
2043
2044 talloc_set_destructor(lp_ctx, lpcfg_destructor);
2045 lp_ctx->bInGlobalSection = true;
2046 lp_ctx->globals = talloc_zero(lp_ctx, struct loadparm_global);
2047 lp_ctx->sDefault = talloc_zero(lp_ctx, struct loadparm_service);
2048
2049 lp_ctx->sDefault->iMaxPrintJobs = 1000;
2050 lp_ctx->sDefault->bAvailable = true;
2051 lp_ctx->sDefault->bBrowseable = true;
2052 lp_ctx->sDefault->bRead_only = true;
2053 lp_ctx->sDefault->bMap_archive = true;
2054 lp_ctx->sDefault->iStrictLocking = true;
2055 lp_ctx->sDefault->bOpLocks = true;
2056 lp_ctx->sDefault->iCreate_mask = 0744;
2057 lp_ctx->sDefault->iCreate_force_mode = 0000;
2058 lp_ctx->sDefault->iDir_mask = 0755;
2059 lp_ctx->sDefault->iDir_force_mode = 0000;
2060
2061 DEBUG(3, ("Initialising global parameters\n"));
2062
2063 for (i = 0; parm_table[i].label; i++) {
2064 if ((parm_table[i].type == P_STRING ||
2065 parm_table[i].type == P_USTRING) &&
2066 !(lp_ctx->flags[i] & FLAG_CMDLINE)) {
2067 char **r;
2068 if (parm_table[i].p_class == P_LOCAL) {
2069 r = (char **)(((char *)lp_ctx->sDefault) + parm_table[i].offset);
2070 } else {
2071 r = (char **)(((char *)lp_ctx->globals) + parm_table[i].offset);
2072 }
2073 *r = talloc_strdup(lp_ctx, "");
2074 }
2075 }
2076
2077 logfile = talloc_asprintf(lp_ctx, "%s/log.samba", dyn_LOGFILEBASE);
2078 lpcfg_do_global_parameter(lp_ctx, "log file", logfile);
2079 talloc_free(logfile);
2080
2081 lpcfg_do_global_parameter(lp_ctx, "log level", "0");
2082
2083 lpcfg_do_global_parameter(lp_ctx, "syslog", "1");
2084 lpcfg_do_global_parameter(lp_ctx, "syslog only", "No");
2085 lpcfg_do_global_parameter(lp_ctx, "debug timestamp", "Yes");
2086 lpcfg_do_global_parameter(lp_ctx, "debug prefix timestamp", "No");
2087 lpcfg_do_global_parameter(lp_ctx, "debug hires timestamp", "Yes");
2088 lpcfg_do_global_parameter(lp_ctx, "debug pid", "No");
2089 lpcfg_do_global_parameter(lp_ctx, "debug uid", "No");
2090 lpcfg_do_global_parameter(lp_ctx, "debug class", "No");
2091
2092 lpcfg_do_global_parameter(lp_ctx, "share backend", "classic");
2093
2094 lpcfg_do_global_parameter(lp_ctx, "server role", "auto");
2095 lpcfg_do_global_parameter(lp_ctx, "domain logons", "No");
2096 lpcfg_do_global_parameter(lp_ctx, "domain master", "Auto");
2097
2098 /* options that can be set on the command line must be initialised via
2099 the slower lpcfg_do_global_parameter() to ensure that FLAG_CMDLINE is obeyed */
2100 #ifdef TCP_NODELAY
2101 lpcfg_do_global_parameter(lp_ctx, "socket options", "TCP_NODELAY");
2102 #endif
2103 lpcfg_do_global_parameter(lp_ctx, "workgroup", DEFAULT_WORKGROUP);
2104 myname = get_myname(lp_ctx);
2105 lpcfg_do_global_parameter(lp_ctx, "netbios name", myname);
2106 talloc_free(myname);
2107 lpcfg_do_global_parameter(lp_ctx, "name resolve order", "wins host bcast");
2108
2109 lpcfg_do_global_parameter(lp_ctx, "fstype", "NTFS");
2110
2111 lpcfg_do_global_parameter(lp_ctx, "ntvfs handler", "unixuid default");
2112 lpcfg_do_global_parameter(lp_ctx, "max connections", "-1");
2113
2114 lpcfg_do_global_parameter(lp_ctx, "dcerpc endpoint servers", "epmapper wkssvc rpcecho samr netlogon lsarpc spoolss drsuapi dssetup unixinfo browser eventlog6 backupkey dnsserver");
2115 lpcfg_do_global_parameter(lp_ctx, "server services", "s3fs rpc nbt wrepl ldap cldap kdc drepl winbind ntp_signd kcc dnsupdate dns");
2116 /* the winbind method for domain controllers is for both RODC
2117 auth forwarding and for trusted domains */
2118 lpcfg_do_global_parameter(lp_ctx, "private dir", dyn_PRIVATE_DIR);
2119 lpcfg_do_global_parameter(lp_ctx, "registry:HKEY_LOCAL_MACHINE", "hklm.ldb");
2120
2121 /* This hive should be dynamically generated by Samba using
2122 data from the sam, but for the moment leave it in a tdb to
2123 keep regedt32 from popping up an annoying dialog. */
2124 lpcfg_do_global_parameter(lp_ctx, "registry:HKEY_USERS", "hku.ldb");
2125
2126 /* using UTF8 by default allows us to support all chars */
2127 lpcfg_do_global_parameter(lp_ctx, "unix charset", "UTF8");
2128
2129 /* Use codepage 850 as a default for the dos character set */
2130 lpcfg_do_global_parameter(lp_ctx, "dos charset", "CP850");
2131
2132 /*
2133 * Allow the default PASSWD_CHAT to be overridden in local.h.
2134 */
2135 lpcfg_do_global_parameter(lp_ctx, "passwd chat", DEFAULT_PASSWD_CHAT);
2136
2137 lpcfg_do_global_parameter(lp_ctx, "pid directory", dyn_PIDDIR);
2138 lpcfg_do_global_parameter(lp_ctx, "lock dir", dyn_LOCKDIR);
2139 lpcfg_do_global_parameter(lp_ctx, "state directory", dyn_STATEDIR);
2140 lpcfg_do_global_parameter(lp_ctx, "cache directory", dyn_CACHEDIR);
2141 lpcfg_do_global_parameter(lp_ctx, "ncalrpc dir", dyn_NCALRPCDIR);
2142
2143 lpcfg_do_global_parameter(lp_ctx, "nbt client socket address", "");
2144 lpcfg_do_global_parameter_var(lp_ctx, "server string",
2145 "Samba %s", SAMBA_VERSION_STRING);
2146
2147 lpcfg_do_global_parameter(lp_ctx, "password server", "*");
2148
2149 lpcfg_do_global_parameter(lp_ctx, "max mux", "50");
2150 lpcfg_do_global_parameter(lp_ctx, "max xmit", "12288");
2151 lpcfg_do_global_parameter(lp_ctx, "host msdfs", "true");
2152
2153 lpcfg_do_global_parameter(lp_ctx, "password level", "0");
2154 lpcfg_do_global_parameter(lp_ctx, "LargeReadwrite", "True");
2155 lpcfg_do_global_parameter(lp_ctx, "server min protocol", "CORE");
2156 lpcfg_do_global_parameter(lp_ctx, "server max protocol", "NT1");
2157 lpcfg_do_global_parameter(lp_ctx, "client min protocol", "CORE");
2158 lpcfg_do_global_parameter(lp_ctx, "client max protocol", "NT1");
2159 lpcfg_do_global_parameter(lp_ctx, "security", "AUTO");
2160 lpcfg_do_global_parameter(lp_ctx, "EncryptPasswords", "True");
2161 lpcfg_do_global_parameter(lp_ctx, "ReadRaw", "True");
2162 lpcfg_do_global_parameter(lp_ctx, "WriteRaw", "True");
2163 lpcfg_do_global_parameter(lp_ctx, "NullPasswords", "False");
2164 lpcfg_do_global_parameter(lp_ctx, "ObeyPamRestrictions", "False");
2165
2166 lpcfg_do_global_parameter(lp_ctx, "TimeServer", "False");
2167 lpcfg_do_global_parameter(lp_ctx, "BindInterfacesOnly", "False");
2168 lpcfg_do_global_parameter(lp_ctx, "Unicode", "True");
2169 lpcfg_do_global_parameter(lp_ctx, "ClientLanManAuth", "False");
2170 lpcfg_do_global_parameter(lp_ctx, "ClientNTLMv2Auth", "True");
2171 lpcfg_do_global_parameter(lp_ctx, "LanmanAuth", "False");
2172 lpcfg_do_global_parameter(lp_ctx, "NTLMAuth", "True");
2173 lpcfg_do_global_parameter(lp_ctx, "client use spnego principal", "False");
2174
2175 lpcfg_do_global_parameter(lp_ctx, "UnixExtensions", "False");
2176
2177 lpcfg_do_global_parameter(lp_ctx, "PreferredMaster", "Auto");
2178 lpcfg_do_global_parameter(lp_ctx, "LocalMaster", "True");
2179
2180 lpcfg_do_global_parameter(lp_ctx, "wins support", "False");
2181 lpcfg_do_global_parameter(lp_ctx, "dns proxy", "True");
2182
2183 lpcfg_do_global_parameter(lp_ctx, "winbind separator", "\\");
2184 lpcfg_do_global_parameter(lp_ctx, "winbind sealed pipes", "True");
2185 lpcfg_do_global_parameter(lp_ctx, "winbindd socket directory", dyn_WINBINDD_SOCKET_DIR);
2186 #if _SAMBA_BUILD_ >= 4
2187 lpcfg_do_global_parameter(lp_ctx, "winbindd privileged socket directory", dyn_WINBINDD_PRIVILEGED_SOCKET_DIR);
2188 lpcfg_do_global_parameter(lp_ctx, "ntp signd socket directory", dyn_NTP_SIGND_SOCKET_DIR);
2189 lpcfg_do_global_parameter_var(lp_ctx, "dns update command", "%s/samba_dnsupdate", dyn_SCRIPTSBINDIR);
2190 lpcfg_do_global_parameter_var(lp_ctx, "spn update command", "%s/samba_spnupdate", dyn_SCRIPTSBINDIR);
2191 lpcfg_do_global_parameter_var(lp_ctx, "samba kcc command",
2192 "%s/samba_kcc", dyn_SCRIPTSBINDIR);
2193 #endif
2194 lpcfg_do_global_parameter(lp_ctx, "template shell", "/bin/false");
2195 lpcfg_do_global_parameter(lp_ctx, "template homedir", "/home/%WORKGROUP%/%ACCOUNTNAME%");
2196
2197 lpcfg_do_global_parameter(lp_ctx, "client signing", "default");
2198 lpcfg_do_global_parameter(lp_ctx, "server signing", "default");
2199
2200 lpcfg_do_global_parameter(lp_ctx, "use spnego", "True");
2201
2202 lpcfg_do_global_parameter(lp_ctx, "use mmap", "True");
2203
2204 lpcfg_do_global_parameter(lp_ctx, "smb ports", "445 139");
2205 lpcfg_do_global_parameter(lp_ctx, "nbt port", "137");
2206 lpcfg_do_global_parameter(lp_ctx, "dgram port", "138");
2207 lpcfg_do_global_parameter(lp_ctx, "cldap port", "389");
2208 lpcfg_do_global_parameter(lp_ctx, "krb5 port", "88");
2209 lpcfg_do_global_parameter(lp_ctx, "kpasswd port", "464");
2210 lpcfg_do_global_parameter(lp_ctx, "web port", "901");
2211
2212 lpcfg_do_global_parameter(lp_ctx, "nt status support", "True");
2213
2214 lpcfg_do_global_parameter(lp_ctx, "max wins ttl", "518400"); /* 6 days */
2215 lpcfg_do_global_parameter(lp_ctx, "min wins ttl", "10");
2216
2217 lpcfg_do_global_parameter(lp_ctx, "tls enabled", "True");
2218 lpcfg_do_global_parameter(lp_ctx, "tls keyfile", "tls/key.pem");
2219 lpcfg_do_global_parameter(lp_ctx, "tls certfile", "tls/cert.pem");
2220 lpcfg_do_global_parameter(lp_ctx, "tls cafile", "tls/ca.pem");
2221 lpcfg_do_global_parameter(lp_ctx, "prefork children:smb", "4");
2222
2223 lpcfg_do_global_parameter(lp_ctx, "rndc command", "/usr/sbin/rndc");
2224 lpcfg_do_global_parameter(lp_ctx, "nsupdate command", "/usr/bin/nsupdate -g");
2225
2226 lpcfg_do_global_parameter(lp_ctx, "allow dns updates", "secure only");
2227 lpcfg_do_global_parameter(lp_ctx, "dns forwarder", "");
2228
2229 for (i = 0; parm_table[i].label; i++) {
2230 if (!(lp_ctx->flags[i] & FLAG_CMDLINE)) {
2231 lp_ctx->flags[i] |= FLAG_DEFAULT;
2232 }
2233 }
2234
2235 for (parm=lp_ctx->globals->param_opt; parm; parm=parm->next) {
2236 if (!(parm->priority & FLAG_CMDLINE)) {
2237 parm->priority |= FLAG_DEFAULT;
2238 }
2239 }
2240
2241 return lp_ctx;
2242 }
2243
2244 /**
2245 * Initialise the global parameter structure.
2246 */
2247 struct loadparm_context *loadparm_init_global(bool load_default)
2248 {
2249 if (global_loadparm_context == NULL) {
2250 global_loadparm_context = loadparm_init(NULL);
2251 }
2252 if (global_loadparm_context == NULL) {
2253 return NULL;
2254 }
2255 global_loadparm_context->global = true;
2256 if (load_default && !global_loadparm_context->loaded) {
2257 lpcfg_load_default(global_loadparm_context);
2258 }
2259 global_loadparm_context->refuse_free = true;
2260 return global_loadparm_context;
2261 }
2262
2263 /**
2264 * Initialise the global parameter structure.
2265 */
2266 struct loadparm_context *loadparm_init_s3(TALLOC_CTX *mem_ctx,
2267 const struct loadparm_s3_helpers *s3_fns)
2268 {
2269 struct loadparm_context *loadparm_context = talloc_zero(mem_ctx, struct loadparm_context);
2270 if (!loadparm_context) {
2271 return NULL;
2272 }
2273 loadparm_context->s3_fns = s3_fns;
2274 return loadparm_context;
2275 }
2276
2277 const char *lpcfg_configfile(struct loadparm_context *lp_ctx)
2278 {
2279 return lp_ctx->szConfigFile;
2280 }
2281
2282 const char *lp_default_path(void)
2283 {
2284 if (getenv("SMB_CONF_PATH"))
2285 return getenv("SMB_CONF_PATH");
2286 else
2287 return dyn_CONFIGFILE;
2288 }
2289
2290 /**
2291 * Update the internal state of a loadparm context after settings
2292 * have changed.
2293 */
2294 static bool lpcfg_update(struct loadparm_context *lp_ctx)
2295 {
2296 struct debug_settings settings;
2297 lpcfg_add_auto_services(lp_ctx, lpcfg_auto_services(lp_ctx));
2298
2299 if (!lp_ctx->globals->szWINSservers && lp_ctx->globals->bWINSsupport) {
2300 lpcfg_do_global_parameter(lp_ctx, "wins server", "127.0.0.1");
2301 }
2302
2303 if (!lp_ctx->global) {
2304 return true;
2305 }
2306
2307 panic_action = lp_ctx->globals->szPanicAction;
2308
2309 reload_charcnv(lp_ctx);
2310
2311 ZERO_STRUCT(settings);
2312 /* Add any more debug-related smb.conf parameters created in
2313 * future here */
2314 settings.syslog = lp_ctx->globals->syslog;
2315 settings.syslog_only = lp_ctx->globals->bSyslogOnly;
2316 settings.timestamp_logs = lp_ctx->globals->bTimestampLogs;
2317 settings.debug_prefix_timestamp = lp_ctx->globals->bDebugPrefixTimestamp;
2318 settings.debug_hires_timestamp = lp_ctx->globals->bDebugHiresTimestamp;
2319 settings.debug_pid = lp_ctx->globals->bDebugPid;
2320 settings.debug_uid = lp_ctx->globals->bDebugUid;
2321 settings.debug_class = lp_ctx->globals->bDebugClass;
2322 debug_set_settings(&settings);
2323
2324 /* FIXME: This is a bit of a hack, but we can't use a global, since
2325 * not everything that uses lp also uses the socket library */
2326 if (lpcfg_parm_bool(lp_ctx, NULL, "socket", "testnonblock", false)) {
2327 setenv("SOCKET_TESTNONBLOCK", "1", 1);
2328 } else {
2329 unsetenv("SOCKET_TESTNONBLOCK");
2330 }
2331
2332 return true;
2333 }
2334
2335 bool lpcfg_load_default(struct loadparm_context *lp_ctx)
2336 {
2337 const char *path;
2338
2339 path = lp_default_path();
2340
2341 if (!file_exist(path)) {
2342 /* We allow the default smb.conf file to not exist,
2343 * basically the equivalent of an empty file. */
2344 return lpcfg_update(lp_ctx);
2345 }
2346
2347 return lpcfg_load(lp_ctx, path);
2348 }
2349
2350 /**
2351 * Load the services array from the services file.
2352 *
2353 * Return True on success, False on failure.
2354 */
2355 bool lpcfg_load(struct loadparm_context *lp_ctx, const char *filename)
2356 {
2357 char *n2;
2358 bool bRetval;
2359
2360 filename = talloc_strdup(lp_ctx, filename);
2361
2362 lp_ctx->szConfigFile = filename;
2363
2364 if (lp_ctx->s3_fns) {
2365 return lp_ctx->s3_fns->load(filename);
2366 }
2367
2368 lp_ctx->bInGlobalSection = true;
2369 n2 = standard_sub_basic(lp_ctx, lp_ctx->szConfigFile);
2370 DEBUG(2, ("lpcfg_load: refreshing parameters from %s\n", n2));
2371
2372 add_to_file_list(lp_ctx, lp_ctx->szConfigFile, n2);
2373
2374 /* We get sections first, so have to start 'behind' to make up */
2375 lp_ctx->currentService = NULL;
2376 bRetval = pm_process(n2, do_section, do_parameter, lp_ctx);
2377
2378 /* finish up the last section */
2379 DEBUG(4, ("pm_process() returned %s\n", BOOLSTR(bRetval)));
2380 if (bRetval)
2381 if (lp_ctx->currentService != NULL)
2382 bRetval = lpcfg_service_ok(lp_ctx->currentService);
2383
2384 bRetval = bRetval && lpcfg_update(lp_ctx);
2385
2386 /* we do this unconditionally, so that it happens even
2387 for a missing smb.conf */
2388 reload_charcnv(lp_ctx);
2389
2390 if (bRetval == true) {
2391 /* set this up so that any child python tasks will
2392 find the right smb.conf */
2393 setenv("SMB_CONF_PATH", filename, 1);
2394
2395 /* set the context used by the lp_*() function
2396 varients */
2397 global_loadparm_context = lp_ctx;
2398 lp_ctx->loaded = true;
2399 }
2400
2401 return bRetval;
2402 }
2403
2404 /**
2405 * Return the max number of services.
2406 */
2407
2408 int lpcfg_numservices(struct loadparm_context *lp_ctx)
2409 {
2410 if (lp_ctx->s3_fns) {
2411 return lp_ctx->s3_fns->get_numservices();
2412 }
2413
2414 return lp_ctx->iNumServices;
2415 }
2416
2417 /**
2418 * Display the contents of the services array in human-readable form.
2419 */
2420
2421 void lpcfg_dump(struct loadparm_context *lp_ctx, FILE *f, bool show_defaults,
2422 int maxtoprint)
2423 {
2424 int iService;
2425
2426 if (lp_ctx->s3_fns) {
2427 lp_ctx->s3_fns->dump(f, show_defaults, maxtoprint);
2428 return;
2429 }
2430
2431 defaults_saved = !show_defaults;
2432
2433 dump_globals(lp_ctx, f, show_defaults);
2434
2435 dump_a_service(lp_ctx->sDefault, lp_ctx->sDefault, f, lp_ctx->flags);
2436
2437 for (iService = 0; iService < maxtoprint; iService++)
2438 lpcfg_dump_one(f, show_defaults, lp_ctx->services[iService], lp_ctx->sDefault);
2439 }
2440
2441 /**
2442 * Display the contents of one service in human-readable form.
2443 */
2444 void lpcfg_dump_one(FILE *f, bool show_defaults, struct loadparm_service *service, struct loadparm_service *sDefault)
2445 {
2446 if (service != NULL) {
2447 if (service->szService[0] == '\0')
2448 return;
2449 dump_a_service(service, sDefault, f, NULL);
2450 }
2451 }
2452
2453 struct loadparm_service *lpcfg_servicebynum(struct loadparm_context *lp_ctx,
2454 int snum)
2455 {
2456 if (lp_ctx->s3_fns) {
2457 return lp_ctx->s3_fns->get_servicebynum(snum);
2458 }
2459
2460 return lp_ctx->services[snum];
2461 }
2462
2463 struct loadparm_service *lpcfg_service(struct loadparm_context *lp_ctx,
2464 const char *service_name)
2465 {
2466 int iService;
2467 char *serviceName;
2468
2469 if (lp_ctx->s3_fns) {
2470 return lp_ctx->s3_fns->get_service(service_name);
2471 }
2472
2473 for (iService = lp_ctx->iNumServices - 1; iService >= 0; iService--) {
2474 if (lp_ctx->services[iService] &&
2475 lp_ctx->services[iService]->szService) {
2476 /*
2477 * The substitution here is used to support %U is
2478 * service names
2479 */
2480 serviceName = standard_sub_basic(
2481 lp_ctx->services[iService],
2482 lp_ctx->services[iService]->szService);
2483 if (strequal(serviceName, service_name)) {
2484 talloc_free(serviceName);
2485 return lp_ctx->services[iService];
2486 }
2487 talloc_free(serviceName);
2488 }
2489 }
2490
2491 DEBUG(7,("lpcfg_servicenumber: couldn't find %s\n", service_name));
2492 return NULL;
2493 }
2494
2495 const char *lpcfg_servicename(const struct loadparm_service *service)
2496 {
2497 return lp_string((const char *)service->szService);
2498 }
2499
2500 /**
2501 * A useful volume label function.
2502 */
2503 const char *lpcfg_volume_label(struct loadparm_service *service, struct loadparm_service *sDefault)
2504 {
2505 const char *ret;
2506 ret = lp_string((const char *)((service != NULL && service->volume != NULL) ?
2507 service->volume : sDefault->volume));
2508 if (!*ret)
2509 return lpcfg_servicename(service);
2510 return ret;
2511 }
2512
2513 /**
2514 * If we are PDC then prefer us as DMB
2515 */
2516 const char *lpcfg_printername(struct loadparm_service *service, struct loadparm_service *sDefault)
2517 {
2518 const char *ret;
2519 ret = lp_string((const char *)((service != NULL && service->szPrintername != NULL) ?
2520 service->szPrintername : sDefault->szPrintername));
2521 if (ret == NULL || (ret != NULL && *ret == '\0'))
2522 ret = lpcfg_servicename(service);
2523
2524 return ret;
2525 }
2526
2527
2528 /**
2529 * Return the max print jobs per queue.
2530 */
2531 int lpcfg_maxprintjobs(struct loadparm_service *service, struct loadparm_service *sDefault)
2532 {
2533 int maxjobs = (service != NULL) ? service->iMaxPrintJobs : sDefault->iMaxPrintJobs;
2534 if (maxjobs <= 0 || maxjobs >= PRINT_MAX_JOBID)
2535 maxjobs = PRINT_MAX_JOBID - 1;
2536
2537 return maxjobs;
2538 }
2539
2540 struct smb_iconv_handle *lpcfg_iconv_handle(struct loadparm_context *lp_ctx)
2541 {
2542 if (lp_ctx == NULL) {
2543 return get_iconv_handle();
2544 }
2545 return lp_ctx->iconv_handle;
2546 }
2547
2548 _PUBLIC_ void reload_charcnv(struct loadparm_context *lp_ctx)
2549 {
2550 struct smb_iconv_handle *old_ic = lp_ctx->iconv_handle;
2551 if (!lp_ctx->global) {
2552 return;
2553 }
2554
2555 if (old_ic == NULL) {
2556 old_ic = global_iconv_handle;
2557 }
2558 lp_ctx->iconv_handle = smb_iconv_handle_reinit_lp(lp_ctx, lp_ctx, old_ic);
2559 global_iconv_handle = lp_ctx->iconv_handle;
2560 }
2561
2562 _PUBLIC_ char *lpcfg_tls_keyfile(TALLOC_CTX *mem_ctx, struct loadparm_context *lp_ctx)
2563 {
2564 return lpcfg_private_path(mem_ctx, lp_ctx, lp_ctx->globals->tls_keyfile);
2565 }
2566
2567 _PUBLIC_ char *lpcfg_tls_certfile(TALLOC_CTX *mem_ctx, struct loadparm_context *lp_ctx)
2568 {
2569 return lpcfg_private_path(mem_ctx, lp_ctx, lp_ctx->globals->tls_certfile);
2570 }
2571
2572 _PUBLIC_ char *lpcfg_tls_cafile(TALLOC_CTX *mem_ctx, struct loadparm_context *lp_ctx)
2573 {
2574 return lpcfg_private_path(mem_ctx, lp_ctx, lp_ctx->globals->tls_cafile);
2575 }
2576
2577 _PUBLIC_ char *lpcfg_tls_crlfile(TALLOC_CTX *mem_ctx, struct loadparm_context *lp_ctx)
2578 {
2579 return lpcfg_private_path(mem_ctx, lp_ctx, lp_ctx->globals->tls_crlfile);
2580 }
2581
2582 _PUBLIC_ char *lpcfg_tls_dhpfile(TALLOC_CTX *mem_ctx, struct loadparm_context *lp_ctx)
2583 {
2584 return lpcfg_private_path(mem_ctx, lp_ctx, lp_ctx->globals->tls_dhpfile);
2585 }
2586
2587 struct gensec_settings *lpcfg_gensec_settings(TALLOC_CTX *mem_ctx, struct loadparm_context *lp_ctx)
2588 {
2589 struct gensec_settings *settings = talloc_zero(mem_ctx, struct gensec_settings);
2590 if (settings == NULL)
2591 return NULL;
2592 SMB_ASSERT(lp_ctx != NULL);
2593 settings->lp_ctx = talloc_reference(settings, lp_ctx);
2594 settings->target_hostname = lpcfg_parm_string(lp_ctx, NULL, "gensec", "target_hostname");
2595 return settings;
2596 }
2597
2598 int lpcfg_server_role(struct loadparm_context *lp_ctx)
2599 {
2600 int domain_master = lpcfg__domain_master(lp_ctx);
2601
2602 return lp_find_server_role(lpcfg__server_role(lp_ctx),
2603 lpcfg__security(lp_ctx),
2604 lpcfg__domain_logons(lp_ctx),
2605 (domain_master == true) ||
2606 (domain_master == Auto));
2607 }
2608
2609 int lpcfg_security(struct loadparm_context *lp_ctx)
2610 {
2611 return lp_find_security(lpcfg__server_role(lp_ctx),
2612 lpcfg__security(lp_ctx));
2613 }
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