1 /*
2  *  Unix SMB/CIFS implementation.
3  *  Group Policy Object Support
4  *  Copyright (C) Guenther Deschner 2005-2008
5  *
6  *  This program is free software; you can redistribute it and/or modify
7  *  it under the terms of the GNU General Public License as published by
8  *  the Free Software Foundation; either version 3 of the License, or
9  *  (at your option) any later version.
10  *
11  *  This program is distributed in the hope that it will be useful,
12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  *  GNU General Public License for more details.
15  *
16  *  You should have received a copy of the GNU General Public License
17  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
18  */
19 
20 #include "includes.h"
21 #include "system/filesys.h"
22 #include "librpc/gen_ndr/ndr_misc.h"
23 #include "../librpc/gen_ndr/ndr_security.h"
24 #include "../libgpo/gpo.h"
25 #include "../libcli/security/security.h"
26 #include "registry.h"
27 #include "libgpo/gpo_proto.h"
28 #include "libgpo/gpext/gpext.h"
29 
30 #if 0
31 #define DEFAULT_DOMAIN_POLICY "Default Domain Policy"
32 #define DEFAULT_DOMAIN_CONTROLLERS_POLICY "Default Domain Controllers Policy"
33 #endif
34 
35 /* should we store a parsed guid ? */
36 struct gp_table {
37 	const char *name;
38 	const char *guid_string;
39 };
40 
41 #if 0 /* unused */
42 static struct gp_table gpo_default_policy[] = {
43 	{ DEFAULT_DOMAIN_POLICY,
44 		"31B2F340-016D-11D2-945F-00C04FB984F9" },
45 	{ DEFAULT_DOMAIN_CONTROLLERS_POLICY,
46 		"6AC1786C-016F-11D2-945F-00C04fB984F9" },
47 	{ NULL, NULL }
48 };
49 #endif
50 
51 /* the following is seen in gPCMachineExtensionNames / gPCUserExtensionNames */
52 
53 static struct gp_table gpo_cse_extensions[] = {
54 	/* used to be "Administrative Templates Extension" */
55 	/* "Registry Settings"
56 	(http://support.microsoft.com/kb/216357/EN-US/) */
57 	{ "Registry Settings",
58 		GP_EXT_GUID_REGISTRY },
59 	{ "Microsoft Disc Quota",
60 		"3610EDA5-77EF-11D2-8DC5-00C04FA31A66" },
61 	{ "EFS recovery",
62 		"B1BE8D72-6EAC-11D2-A4EA-00C04F79F83A" },
63 	{ "Folder Redirection",
64 		"25537BA6-77A8-11D2-9B6C-0000F8080861" },
65 	{ "IP Security",
66 		"E437BC1C-AA7D-11D2-A382-00C04F991E27" },
67 	{ "Internet Explorer Branding",
68 		"A2E30F80-D7DE-11d2-BBDE-00C04F86AE3B" },
69 	{ "QoS Packet Scheduler",
70 		"426031c0-0b47-4852-b0ca-ac3d37bfcb39" },
71 	{ "Scripts",
72 		GP_EXT_GUID_SCRIPTS },
73 	{ "Security",
74 		GP_EXT_GUID_SECURITY },
75 	{ "Software Installation",
76 		"C6DC5466-785A-11D2-84D0-00C04FB169F7" },
77 	{ "Wireless Group Policy",
78 		"0ACDD40C-75AC-BAA0-BF6DE7E7FE63" },
79 	{ "Application Management",
80 		"C6DC5466-785A-11D2-84D0-00C04FB169F7" },
81 	{ "unknown",
82 		"3060E8D0-7020-11D2-842D-00C04FA372D4" },
83 	{ NULL, NULL }
84 };
85 
86 /* guess work */
87 static struct gp_table gpo_cse_snapin_extensions[] = {
88 	{ "Administrative Templates",
89 		"0F6B957D-509E-11D1-A7CC-0000F87571E3" },
90 	{ "Certificates",
91 		"53D6AB1D-2488-11D1-A28C-00C04FB94F17" },
92 	{ "EFS recovery policy processing",
93 		"B1BE8D72-6EAC-11D2-A4EA-00C04F79F83A" },
94 	{ "Folder Redirection policy processing",
95 		"25537BA6-77A8-11D2-9B6C-0000F8080861" },
96 	{ "Folder Redirection",
97 		"88E729D6-BDC1-11D1-BD2A-00C04FB9603F" },
98 	{ "Registry policy processing",
99 		"35378EAC-683F-11D2-A89A-00C04FBBCFA2" },
100 	{ "Remote Installation Services",
101 		"3060E8CE-7020-11D2-842D-00C04FA372D4" },
102 	{ "Security Settings",
103 		"803E14A0-B4FB-11D0-A0D0-00A0C90F574B" },
104 	{ "Security policy processing",
105 		"827D319E-6EAC-11D2-A4EA-00C04F79F83A" },
106 	{ "unknown",
107 		"3060E8D0-7020-11D2-842D-00C04FA372D4" },
108 	{ "unknown2",
109 		"53D6AB1B-2488-11D1-A28C-00C04FB94F17" },
110 	{ NULL, NULL }
111 };
112 
113 /****************************************************************
114 ****************************************************************/
115 
name_to_guid_string(const char * name,struct gp_table * table)116 static const char *name_to_guid_string(const char *name,
117 				       struct gp_table *table)
118 {
119 	int i;
120 
121 	for (i = 0; table[i].name; i++) {
122 		if (strequal(name, table[i].name)) {
123 			return table[i].guid_string;
124 		}
125 	}
126 
127 	return NULL;
128 }
129 
130 /****************************************************************
131 ****************************************************************/
132 
guid_string_to_name(const char * guid_string,struct gp_table * table)133 static const char *guid_string_to_name(const char *guid_string,
134 				       struct gp_table *table)
135 {
136 	int i;
137 
138 	for (i = 0; table[i].guid_string; i++) {
139 		if (strequal(guid_string, table[i].guid_string)) {
140 			return table[i].name;
141 		}
142 	}
143 
144 	return NULL;
145 }
146 
147 /****************************************************************
148 ****************************************************************/
149 
snapin_guid_string_to_name(const char * guid_string,struct gp_table * table)150 static const char *snapin_guid_string_to_name(const char *guid_string,
151 					      struct gp_table *table)
152 {
153 	int i;
154 	for (i = 0; table[i].guid_string; i++) {
155 		if (strequal(guid_string, table[i].guid_string)) {
156 			return table[i].name;
157 		}
158 	}
159 	return NULL;
160 }
161 
162 #if 0 /* unused */
163 static const char *default_gpo_name_to_guid_string(const char *name)
164 {
165 	return name_to_guid_string(name, gpo_default_policy);
166 }
167 
168 static const char *default_gpo_guid_string_to_name(const char *guid)
169 {
170 	return guid_string_to_name(guid, gpo_default_policy);
171 }
172 #endif
173 
174 /****************************************************************
175 ****************************************************************/
176 
cse_gpo_guid_string_to_name(const char * guid)177 const char *cse_gpo_guid_string_to_name(const char *guid)
178 {
179 	return guid_string_to_name(guid, gpo_cse_extensions);
180 }
181 
182 /****************************************************************
183 ****************************************************************/
184 
cse_gpo_name_to_guid_string(const char * name)185 const char *cse_gpo_name_to_guid_string(const char *name)
186 {
187 	return name_to_guid_string(name, gpo_cse_extensions);
188 }
189 
190 /****************************************************************
191 ****************************************************************/
192 
cse_snapin_gpo_guid_string_to_name(const char * guid)193 const char *cse_snapin_gpo_guid_string_to_name(const char *guid)
194 {
195 	return snapin_guid_string_to_name(guid, gpo_cse_snapin_extensions);
196 }
197 
198 /****************************************************************
199 ****************************************************************/
200 
dump_gp_ext(struct GP_EXT * gp_ext,int debuglevel)201 void dump_gp_ext(struct GP_EXT *gp_ext, int debuglevel)
202 {
203 	int lvl = debuglevel;
204 	int i;
205 
206 	if (gp_ext == NULL) {
207 		return;
208 	}
209 
210 	DEBUG(lvl,("\t---------------------\n\n"));
211 	DEBUGADD(lvl,("\tname:\t\t\t%s\n", gp_ext->gp_extension));
212 
213 	for (i=0; i< gp_ext->num_exts; i++) {
214 
215 		DEBUGADD(lvl,("\textension:\t\t\t%s\n",
216 			gp_ext->extensions_guid[i]));
217 		DEBUGADD(lvl,("\textension (name):\t\t\t%s\n",
218 			gp_ext->extensions[i]));
219 
220 		DEBUGADD(lvl,("\tsnapin:\t\t\t%s\n",
221 			gp_ext->snapins_guid[i]));
222 		DEBUGADD(lvl,("\tsnapin (name):\t\t\t%s\n",
223 			gp_ext->snapins[i]));
224 	}
225 }
226 
227 #ifdef HAVE_LDAP
228 
229 /****************************************************************
230 ****************************************************************/
231 
dump_gpo(const struct GROUP_POLICY_OBJECT * gpo,int debuglevel)232 void dump_gpo(const struct GROUP_POLICY_OBJECT *gpo,
233 	      int debuglevel)
234 {
235 	int lvl = debuglevel;
236 	TALLOC_CTX *frame = talloc_stackframe();
237 
238 	if (gpo == NULL) {
239 		goto out;
240 	}
241 
242 	DEBUG(lvl,("---------------------\n\n"));
243 
244 	DEBUGADD(lvl,("name:\t\t\t%s\n", gpo->name));
245 	DEBUGADD(lvl,("displayname:\t\t%s\n", gpo->display_name));
246 	DEBUGADD(lvl,("version:\t\t%d (0x%08x)\n", gpo->version, gpo->version));
247 	DEBUGADD(lvl,("version_user:\t\t%d (0x%04x)\n",
248 		GPO_VERSION_USER(gpo->version),
249 		GPO_VERSION_USER(gpo->version)));
250 	DEBUGADD(lvl,("version_machine:\t%d (0x%04x)\n",
251 		GPO_VERSION_MACHINE(gpo->version),
252 		 GPO_VERSION_MACHINE(gpo->version)));
253 	DEBUGADD(lvl,("filesyspath:\t\t%s\n", gpo->file_sys_path));
254 	DEBUGADD(lvl,("dspath:\t\t%s\n", gpo->ds_path));
255 
256 	DEBUGADD(lvl,("options:\t\t%d ", gpo->options));
257 	switch (gpo->options) {
258 		case GPFLAGS_ALL_ENABLED:
259 			DEBUGADD(lvl,("GPFLAGS_ALL_ENABLED\n"));
260 			break;
261 		case GPFLAGS_USER_SETTINGS_DISABLED:
262 			DEBUGADD(lvl,("GPFLAGS_USER_SETTINGS_DISABLED\n"));
263 			break;
264 		case GPFLAGS_MACHINE_SETTINGS_DISABLED:
265 			DEBUGADD(lvl,("GPFLAGS_MACHINE_SETTINGS_DISABLED\n"));
266 			break;
267 		case GPFLAGS_ALL_DISABLED:
268 			DEBUGADD(lvl,("GPFLAGS_ALL_DISABLED\n"));
269 			break;
270 		default:
271 			DEBUGADD(lvl,("unknown option: %d\n", gpo->options));
272 			break;
273 	}
274 
275 	DEBUGADD(lvl,("link:\t\t\t%s\n", gpo->link));
276 	DEBUGADD(lvl,("link_type:\t\t%d ", gpo->link_type));
277 	switch (gpo->link_type) {
278 		case GP_LINK_UNKOWN:
279 			DEBUGADD(lvl,("GP_LINK_UNKOWN\n"));
280 			break;
281 		case GP_LINK_OU:
282 			DEBUGADD(lvl,("GP_LINK_OU\n"));
283 			break;
284 		case GP_LINK_DOMAIN:
285 			DEBUGADD(lvl,("GP_LINK_DOMAIN\n"));
286 			break;
287 		case GP_LINK_SITE:
288 			DEBUGADD(lvl,("GP_LINK_SITE\n"));
289 			break;
290 		case GP_LINK_MACHINE:
291 			DEBUGADD(lvl,("GP_LINK_MACHINE\n"));
292 			break;
293 		default:
294 			break;
295 	}
296 
297 	DEBUGADD(lvl,("machine_extensions:\t%s\n", gpo->machine_extensions));
298 
299 	if (gpo->machine_extensions) {
300 
301 		struct GP_EXT *gp_ext = NULL;
302 
303 		if (!ads_parse_gp_ext(frame, gpo->machine_extensions,
304 				      &gp_ext)) {
305 			goto out;
306 		}
307 		dump_gp_ext(gp_ext, lvl);
308 	}
309 
310 	DEBUGADD(lvl,("user_extensions:\t%s\n", gpo->user_extensions));
311 
312 	if (gpo->user_extensions) {
313 
314 		struct GP_EXT *gp_ext = NULL;
315 
316 		if (!ads_parse_gp_ext(frame, gpo->user_extensions,
317 				      &gp_ext)) {
318 			goto out;
319 		}
320 		dump_gp_ext(gp_ext, lvl);
321 	}
322 	if (gpo->security_descriptor) {
323 		DEBUGADD(lvl,("security descriptor:\n"));
324 
325 		NDR_PRINT_DEBUG(security_descriptor, gpo->security_descriptor);
326 	}
327  out:
328 	talloc_free(frame);
329 }
330 
331 /****************************************************************
332 ****************************************************************/
333 
dump_gpo_list(const struct GROUP_POLICY_OBJECT * gpo_list,int debuglevel)334 void dump_gpo_list(const struct GROUP_POLICY_OBJECT *gpo_list,
335 		   int debuglevel)
336 {
337 	const struct GROUP_POLICY_OBJECT *gpo = NULL;
338 
339 	for (gpo = gpo_list; gpo; gpo = gpo->next) {
340 		dump_gpo(gpo, debuglevel);
341 	}
342 }
343 
344 /****************************************************************
345 ****************************************************************/
346 
dump_gplink(const struct GP_LINK * gp_link)347 void dump_gplink(const struct GP_LINK *gp_link)
348 {
349 	int i;
350 	int lvl = 10;
351 
352 	if (gp_link == NULL) {
353 		return;
354 	}
355 
356 	DEBUG(lvl,("---------------------\n\n"));
357 
358 	DEBUGADD(lvl,("gplink: %s\n", gp_link->gp_link));
359 	DEBUGADD(lvl,("gpopts: %d ", gp_link->gp_opts));
360 	switch (gp_link->gp_opts) {
361 		case GPOPTIONS_INHERIT:
362 			DEBUGADD(lvl,("GPOPTIONS_INHERIT\n"));
363 			break;
364 		case GPOPTIONS_BLOCK_INHERITANCE:
365 			DEBUGADD(lvl,("GPOPTIONS_BLOCK_INHERITANCE\n"));
366 			break;
367 		default:
368 			break;
369 	}
370 
371 	DEBUGADD(lvl,("num links: %d\n", gp_link->num_links));
372 
373 	for (i = 0; i < gp_link->num_links; i++) {
374 
375 		DEBUGADD(lvl,("---------------------\n\n"));
376 
377 		DEBUGADD(lvl,("link: #%d\n", i + 1));
378 		DEBUGADD(lvl,("name: %s\n", gp_link->link_names[i]));
379 
380 		DEBUGADD(lvl,("opt: %d ", gp_link->link_opts[i]));
381 		if (gp_link->link_opts[i] & GPO_LINK_OPT_ENFORCED) {
382 			DEBUGADD(lvl,("GPO_LINK_OPT_ENFORCED "));
383 		}
384 		if (gp_link->link_opts[i] & GPO_LINK_OPT_DISABLED) {
385 			DEBUGADD(lvl,("GPO_LINK_OPT_DISABLED"));
386 		}
387 		DEBUGADD(lvl,("\n"));
388 	}
389 }
390 
391 #endif /* HAVE_LDAP */
392 
393 /****************************************************************
394 ****************************************************************/
395 
gpo_get_gp_ext_from_gpo(TALLOC_CTX * mem_ctx,uint32_t flags,const struct GROUP_POLICY_OBJECT * gpo,struct GP_EXT ** gp_ext)396 bool gpo_get_gp_ext_from_gpo(TALLOC_CTX *mem_ctx,
397 			     uint32_t flags,
398 			     const struct GROUP_POLICY_OBJECT *gpo,
399 			     struct GP_EXT **gp_ext)
400 {
401 	ZERO_STRUCTP(*gp_ext);
402 
403 	if (flags & GPO_INFO_FLAG_MACHINE) {
404 
405 		if (gpo->machine_extensions) {
406 
407 			if (!ads_parse_gp_ext(mem_ctx, gpo->machine_extensions,
408 					      gp_ext)) {
409 				return false;
410 			}
411 		}
412 	} else {
413 
414 		if (gpo->user_extensions) {
415 
416 			if (!ads_parse_gp_ext(mem_ctx, gpo->user_extensions,
417 					      gp_ext)) {
418 				return false;
419 			}
420 		}
421 	}
422 
423 	return true;
424 }
425 
426 /****************************************************************
427 ****************************************************************/
428 
gpo_process_gpo_list(TALLOC_CTX * mem_ctx,const struct security_token * token,const struct GROUP_POLICY_OBJECT * deleted_gpo_list,const struct GROUP_POLICY_OBJECT * changed_gpo_list,const char * extensions_guid_filter,uint32_t flags)429 NTSTATUS gpo_process_gpo_list(TALLOC_CTX *mem_ctx,
430 			      const struct security_token *token,
431 			      const struct GROUP_POLICY_OBJECT *deleted_gpo_list,
432 			      const struct GROUP_POLICY_OBJECT *changed_gpo_list,
433 			      const char *extensions_guid_filter,
434 			      uint32_t flags)
435 {
436 	NTSTATUS status = NT_STATUS_OK;
437 	struct registry_key *root_key = NULL;
438 	struct gp_registry_context *reg_ctx = NULL;
439 	WERROR werr;
440 
441 	/* get the key here */
442 	if (flags & GPO_LIST_FLAG_MACHINE) {
443 		werr = gp_init_reg_ctx(mem_ctx, KEY_HKLM, REG_KEY_WRITE,
444 				       get_system_token(),
445 				       &reg_ctx);
446 	} else {
447 		werr = gp_init_reg_ctx(mem_ctx, KEY_HKCU, REG_KEY_WRITE,
448 				       token,
449 				       &reg_ctx);
450 	}
451 	if (!W_ERROR_IS_OK(werr)) {
452 		talloc_free(reg_ctx);
453 		return werror_to_ntstatus(werr);
454 	}
455 
456 	root_key = reg_ctx->curr_key;
457 
458 	status = gpext_process_extension(mem_ctx,
459 					 flags, token, root_key,
460 					 deleted_gpo_list,
461 					 changed_gpo_list,
462 					 extensions_guid_filter);
463 	talloc_free(reg_ctx);
464 	talloc_free(root_key);
465 	gpext_free_gp_extensions();
466 
467 	return status;
468 }
469 
470 
471 /****************************************************************
472  check whether the version number in a GROUP_POLICY_OBJECT match those of the
473  locally stored version. If not, fetch the required policy via CIFS
474 ****************************************************************/
475 
check_refresh_gpo(ADS_STRUCT * ads,TALLOC_CTX * mem_ctx,const char * cache_dir,uint32_t flags,const struct GROUP_POLICY_OBJECT * gpo)476 NTSTATUS check_refresh_gpo(ADS_STRUCT *ads,
477 			   TALLOC_CTX *mem_ctx,
478                            const char *cache_dir,
479 			   uint32_t flags,
480 			   const struct GROUP_POLICY_OBJECT *gpo)
481 {
482 	NTSTATUS result;
483 	char *server = NULL;
484 	char *share = NULL;
485 	char *nt_path = NULL;
486 	char *unix_path = NULL;
487 	uint32_t sysvol_gpt_version = 0;
488 	char *display_name = NULL;
489 
490 	result = gpo_explode_filesyspath(mem_ctx, cache_dir, gpo->file_sys_path,
491 					 &server, &share, &nt_path, &unix_path);
492 
493 	if (!NT_STATUS_IS_OK(result)) {
494 		goto out;
495 	}
496 
497 	result = gpo_get_sysvol_gpt_version(mem_ctx,
498 					    unix_path,
499 					    &sysvol_gpt_version,
500 					    &display_name);
501 	if (!NT_STATUS_IS_OK(result) &&
502 	    !NT_STATUS_EQUAL(result, NT_STATUS_NO_SUCH_FILE)) {
503 		DEBUG(10,("check_refresh_gpo: "
504 			"failed to get local gpt version: %s\n",
505 			nt_errstr(result)));
506 		goto out;
507 	}
508 
509 	DEBUG(10,("check_refresh_gpo: versions gpo %d sysvol %d\n",
510 		gpo->version, sysvol_gpt_version));
511 
512 	/* FIXME: handle GPO_INFO_FLAG_FORCED_REFRESH from flags */
513 
514 	while (gpo->version > sysvol_gpt_version) {
515 
516 		DEBUG(1,("check_refresh_gpo: need to refresh GPO\n"));
517 
518 		result = gpo_fetch_files(mem_ctx, ads, cache_dir, gpo);
519 		if (!NT_STATUS_IS_OK(result)) {
520 			goto out;
521 		}
522 
523 		result = gpo_get_sysvol_gpt_version(mem_ctx,
524 						    unix_path,
525 						    &sysvol_gpt_version,
526 						    &display_name);
527 		if (!NT_STATUS_IS_OK(result)) {
528 			DEBUG(10,("check_refresh_gpo: "
529 				"failed to get local gpt version: %s\n",
530 				nt_errstr(result)));
531 			goto out;
532 		}
533 
534 		if (gpo->version == sysvol_gpt_version) {
535 			break;
536 		}
537 	}
538 
539 	DEBUG(10,("Name:\t\t\t%s (%s)\n", gpo->display_name, gpo->name));
540 	DEBUGADD(10,("sysvol GPT version:\t%d (user: %d, machine: %d)\n",
541 		sysvol_gpt_version,
542 		GPO_VERSION_USER(sysvol_gpt_version),
543 		GPO_VERSION_MACHINE(sysvol_gpt_version)));
544 	DEBUGADD(10,("LDAP GPO version:\t%d (user: %d, machine: %d)\n",
545 		gpo->version,
546 		GPO_VERSION_USER(gpo->version),
547 		GPO_VERSION_MACHINE(gpo->version)));
548 	DEBUGADD(10,("LDAP GPO link:\t\t%s\n", gpo->link));
549 
550 	result = NT_STATUS_OK;
551 
552  out:
553 	return result;
554 
555 }
556 
557 /****************************************************************
558  check whether the version numbers in the gpo_list match the locally stored, if
559  not, go and get each required GPO via CIFS
560  ****************************************************************/
561 
check_refresh_gpo_list(ADS_STRUCT * ads,TALLOC_CTX * mem_ctx,const char * cache_dir,uint32_t flags,const struct GROUP_POLICY_OBJECT * gpo_list)562 NTSTATUS check_refresh_gpo_list(ADS_STRUCT *ads,
563 				TALLOC_CTX *mem_ctx,
564 				const char *cache_dir,
565 				uint32_t flags,
566 				const struct GROUP_POLICY_OBJECT *gpo_list)
567 {
568 	NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
569 	const struct GROUP_POLICY_OBJECT *gpo;
570 
571 	if (!gpo_list) {
572 		return NT_STATUS_INVALID_PARAMETER;
573 	}
574 
575 	for (gpo = gpo_list; gpo; gpo = gpo->next) {
576 
577 		result = check_refresh_gpo(ads, mem_ctx, cache_dir, flags, gpo);
578 		if (!NT_STATUS_IS_OK(result)) {
579 			goto out;
580 		}
581 	}
582 
583 	result = NT_STATUS_OK;
584 
585  out:
586 	/* FIXME close cli connection */
587 
588 	return result;
589 }
590 
591 /****************************************************************
592 ****************************************************************/
593 
gpo_get_unix_path(TALLOC_CTX * mem_ctx,const char * cache_dir,const struct GROUP_POLICY_OBJECT * gpo,char ** unix_path)594 NTSTATUS gpo_get_unix_path(TALLOC_CTX *mem_ctx,
595                            const char *cache_dir,
596 			   const struct GROUP_POLICY_OBJECT *gpo,
597 			   char **unix_path)
598 {
599 	char *server, *share, *nt_path;
600 	return gpo_explode_filesyspath(mem_ctx, cache_dir, gpo->file_sys_path,
601 				       &server, &share, &nt_path, unix_path);
602 }
603 
604 /****************************************************************
605 ****************************************************************/
606 
gpo_flag_str(TALLOC_CTX * ctx,uint32_t flags)607 char *gpo_flag_str(TALLOC_CTX *ctx, uint32_t flags)
608 {
609 	char *str = NULL;
610 
611 	if (flags == 0) {
612 		return NULL;
613 	}
614 
615 	str = talloc_strdup(ctx, "");
616 	if (!str) {
617 		return NULL;
618 	}
619 
620 	if (flags & GPO_INFO_FLAG_SLOWLINK)
621 		str = talloc_strdup_append(str, "GPO_INFO_FLAG_SLOWLINK ");
622 	if (flags & GPO_INFO_FLAG_VERBOSE)
623 		str = talloc_strdup_append(str, "GPO_INFO_FLAG_VERBOSE ");
624 	if (flags & GPO_INFO_FLAG_SAFEMODE_BOOT)
625 		str = talloc_strdup_append(str, "GPO_INFO_FLAG_SAFEMODE_BOOT ");
626 	if (flags & GPO_INFO_FLAG_NOCHANGES)
627 		str = talloc_strdup_append(str, "GPO_INFO_FLAG_NOCHANGES ");
628 	if (flags & GPO_INFO_FLAG_MACHINE)
629 		str = talloc_strdup_append(str, "GPO_INFO_FLAG_MACHINE ");
630 	if (flags & GPO_INFO_FLAG_LOGRSOP_TRANSITION)
631 		str = talloc_strdup_append(str, "GPO_INFO_FLAG_LOGRSOP_TRANSITION ");
632 	if (flags & GPO_INFO_FLAG_LINKTRANSITION)
633 		str = talloc_strdup_append(str, "GPO_INFO_FLAG_LINKTRANSITION ");
634 	if (flags & GPO_INFO_FLAG_FORCED_REFRESH)
635 		str = talloc_strdup_append(str, "GPO_INFO_FLAG_FORCED_REFRESH ");
636 	if (flags & GPO_INFO_FLAG_BACKGROUND)
637 		str = talloc_strdup_append(str, "GPO_INFO_FLAG_BACKGROUND ");
638 
639 	return str;
640 }
641 
642 /****************************************************************
643 ****************************************************************/
644 
gp_find_file(TALLOC_CTX * mem_ctx,uint32_t flags,const char * filename,const char * suffix,const char ** filename_out)645 NTSTATUS gp_find_file(TALLOC_CTX *mem_ctx,
646 		      uint32_t flags,
647 		      const char *filename,
648 		      const char *suffix,
649 		      const char **filename_out)
650 {
651 	const char *tmp = NULL;
652 	struct stat sbuf;
653 	const char *path = NULL;
654 
655 	if (flags & GPO_LIST_FLAG_MACHINE) {
656 		path = "Machine";
657 	} else {
658 		path = "User";
659 	}
660 
661 	tmp = talloc_asprintf(mem_ctx, "%s/%s/%s", filename,
662 			      path, suffix);
663 	NT_STATUS_HAVE_NO_MEMORY(tmp);
664 
665 	if (stat(tmp, &sbuf) == 0) {
666 		*filename_out = tmp;
667 		return NT_STATUS_OK;
668 	}
669 
670 	path = talloc_strdup_upper(mem_ctx, path);
671 	NT_STATUS_HAVE_NO_MEMORY(path);
672 
673 	tmp = talloc_asprintf(mem_ctx, "%s/%s/%s", filename,
674 			      path, suffix);
675 	NT_STATUS_HAVE_NO_MEMORY(tmp);
676 
677 	if (stat(tmp, &sbuf) == 0) {
678 		*filename_out = tmp;
679 		return NT_STATUS_OK;
680 	}
681 
682 	return NT_STATUS_NO_SUCH_FILE;
683 }
684 
685 /****************************************************************
686 ****************************************************************/
687 
gp_get_machine_token(ADS_STRUCT * ads,TALLOC_CTX * mem_ctx,const char * dn,struct security_token ** token)688 ADS_STATUS gp_get_machine_token(ADS_STRUCT *ads,
689 				TALLOC_CTX *mem_ctx,
690 				const char *dn,
691 				struct security_token **token)
692 {
693 #ifdef HAVE_ADS
694 	struct security_token *ad_token = NULL;
695 	ADS_STATUS status;
696 	NTSTATUS ntstatus;
697 
698 	status = ads_get_sid_token(ads, mem_ctx, dn, &ad_token);
699 	if (!ADS_ERR_OK(status)) {
700 		return status;
701 	}
702 	ntstatus = merge_nt_token(mem_ctx, ad_token, get_system_token(),
703 				  token);
704 	if (!NT_STATUS_IS_OK(ntstatus)) {
705 		return ADS_ERROR_NT(ntstatus);
706 	}
707 	return ADS_SUCCESS;
708 #else
709 	return ADS_ERROR_NT(NT_STATUS_NOT_SUPPORTED);
710 #endif
711 }
712 
713 /****************************************************************
714 ****************************************************************/
715 
gpo_copy(TALLOC_CTX * mem_ctx,const struct GROUP_POLICY_OBJECT * gpo_src,struct GROUP_POLICY_OBJECT ** gpo_dst)716 NTSTATUS gpo_copy(TALLOC_CTX *mem_ctx,
717 		  const struct GROUP_POLICY_OBJECT *gpo_src,
718 		  struct GROUP_POLICY_OBJECT **gpo_dst)
719 {
720 	struct GROUP_POLICY_OBJECT *gpo;
721 
722 	gpo = talloc_zero(mem_ctx, struct GROUP_POLICY_OBJECT);
723 	NT_STATUS_HAVE_NO_MEMORY(gpo);
724 
725 	gpo->options		= gpo_src->options;
726 	gpo->version		= gpo_src->version;
727 
728 	gpo->ds_path		= talloc_strdup(gpo, gpo_src->ds_path);
729 	if (gpo->ds_path == NULL) {
730 		TALLOC_FREE(gpo);
731 		return NT_STATUS_NO_MEMORY;
732 	}
733 
734 	gpo->file_sys_path	= talloc_strdup(gpo, gpo_src->file_sys_path);
735 	if (gpo->file_sys_path == NULL) {
736 		TALLOC_FREE(gpo);
737 		return NT_STATUS_NO_MEMORY;
738 	}
739 
740 	gpo->display_name	= talloc_strdup(gpo, gpo_src->display_name);
741 	if (gpo->display_name == NULL) {
742 		TALLOC_FREE(gpo);
743 		return NT_STATUS_NO_MEMORY;
744 	}
745 
746 	gpo->name		= talloc_strdup(gpo, gpo_src->name);
747 	if (gpo->name == NULL) {
748 		TALLOC_FREE(gpo);
749 		return NT_STATUS_NO_MEMORY;
750 	}
751 
752 	gpo->link		= talloc_strdup(gpo, gpo_src->link);
753 	if (gpo->link == NULL) {
754 		TALLOC_FREE(gpo);
755 		return NT_STATUS_NO_MEMORY;
756 	}
757 
758 	gpo->link_type		= gpo_src->link_type;
759 
760 	if (gpo_src->user_extensions) {
761 		gpo->user_extensions = talloc_strdup(gpo, gpo_src->user_extensions);
762 		if (gpo->user_extensions == NULL) {
763 			TALLOC_FREE(gpo);
764 			return NT_STATUS_NO_MEMORY;
765 		}
766 	}
767 
768 	if (gpo_src->machine_extensions) {
769 		gpo->machine_extensions = talloc_strdup(gpo, gpo_src->machine_extensions);
770 		if (gpo->machine_extensions == NULL) {
771 			TALLOC_FREE(gpo);
772 			return NT_STATUS_NO_MEMORY;
773 		}
774 	}
775 
776 	if (gpo_src->security_descriptor == NULL) {
777 		/* existing SD assumed */
778 		TALLOC_FREE(gpo);
779 		return NT_STATUS_INVALID_PARAMETER;
780 	}
781 	gpo->security_descriptor = security_descriptor_copy(gpo,
782 						gpo_src->security_descriptor);
783 	if (gpo->security_descriptor == NULL) {
784 		TALLOC_FREE(gpo);
785 		return NT_STATUS_NO_MEMORY;
786 	}
787 
788 	gpo->next = gpo->prev = NULL;
789 
790 	*gpo_dst = gpo;
791 
792 	return NT_STATUS_OK;
793 }
794