2 * Unix SMB/CIFS implementation.
4 * Copyright (C) Guenther Deschner 2007-2008
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.
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.
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/>.
22 #define GP_EXT_NAME "registry"
24 /* more info can be found at:
25 * http://msdn2.microsoft.com/en-us/library/aa374407.aspx */
27 #define GP_REGPOL_FILE "Registry.pol"
29 #define GP_REGPOL_FILE_SIGNATURE 0x67655250 /* 'PReg' */
30 #define GP_REGPOL_FILE_VERSION 1
32 static TALLOC_CTX *ctx = NULL;
34 struct gp_registry_file_header {
39 struct gp_registry_file_entry {
42 enum winreg_Type type;
47 struct gp_registry_file {
48 struct gp_registry_file_header header;
50 struct gp_registry_entry *entries;
53 /****************************************************************
54 ****************************************************************/
56 static bool reg_parse_header(const char *desc,
57 struct gp_registry_file_header *header,
64 prs_debug(ps, depth, desc, "reg_parse_header");
67 if (!prs_uint32("signature", ps, depth, &header->signature))
70 if (!prs_uint32("version", ps, depth, &header->version))
76 /****************************************************************
77 ****************************************************************/
79 static bool reg_parse_and_verify_ucs2_char(const char *desc,
86 if (!prs_uint16(desc, ps, depth, &tmp))
89 if (tmp != UCS2_CHAR(character))
95 /****************************************************************
96 ****************************************************************/
98 static bool reg_parse_init(prs_struct *ps, int depth)
100 return reg_parse_and_verify_ucs2_char("initiator '['", '[',
104 /****************************************************************
105 ****************************************************************/
107 static bool reg_parse_sep(prs_struct *ps, int depth)
109 return reg_parse_and_verify_ucs2_char("separator ';'", ';',
113 /****************************************************************
114 ****************************************************************/
116 static bool reg_parse_term(prs_struct *ps, int depth)
118 return reg_parse_and_verify_ucs2_char("terminator ']'", ']',
123 /****************************************************************
124 * [key;value;type;size;data]
125 ****************************************************************/
127 static bool reg_parse_entry(TALLOC_CTX *mem_ctx,
129 struct gp_registry_file_entry *entry,
138 prs_debug(ps, depth, desc, "reg_parse_entry");
143 if (!reg_parse_init(ps, depth))
146 if (!prs_unistr("key", ps, depth, &entry->key))
149 if (!reg_parse_sep(ps, depth))
152 if (!prs_unistr("value", ps, depth, &entry->value))
155 if (!reg_parse_sep(ps, depth))
158 if (!prs_uint32("type", ps, depth, &entry->type))
161 if (!reg_parse_sep(ps, depth))
164 if (!prs_uint32("size", ps, depth, &size))
169 if (!reg_parse_sep(ps, depth))
173 entry->data = TALLOC_ZERO_ARRAY(mem_ctx, uint8, entry->size);
178 if (!prs_uint8s(false, "data", ps, depth, entry->data, entry->size))
181 if (!reg_parse_term(ps, depth))
187 /****************************************************************
188 ****************************************************************/
190 static bool reg_parse_value(TALLOC_CTX *mem_ctx,
192 enum gp_reg_action *action)
195 *action = GP_REG_ACTION_ADD_KEY;
199 if (strncmp(*value, "**", 2) != 0) {
200 *action = GP_REG_ACTION_ADD_VALUE;
204 if (strnequal(*value, "**DelVals.", 10)) {
205 *action = GP_REG_ACTION_DEL_ALL_VALUES;
209 if (strnequal(*value, "**Del.", 6)) {
210 *value = talloc_strdup(mem_ctx, *value + 6);
211 *action = GP_REG_ACTION_DEL_VALUE;
215 if (strnequal(*value, "**SecureKey", 11)) {
216 if (strnequal(*value, "**SecureKey=1", 13)) {
217 *action = GP_REG_ACTION_SEC_KEY_SET;
221 /*************** not tested from here on ***************/
222 if (strnequal(*value, "**SecureKey=0", 13)) {
223 smb_panic("not supported: **SecureKey=0");
224 *action = GP_REG_ACTION_SEC_KEY_RESET;
227 DEBUG(0,("unknown: SecureKey: %s\n", *value));
228 smb_panic("not supported SecureKey method");
232 if (strnequal(*value, "**DeleteValues", strlen("**DeleteValues"))) {
233 smb_panic("not supported: **DeleteValues");
234 *action = GP_REG_ACTION_DEL_VALUES;
238 if (strnequal(*value, "**DeleteKeys", strlen("**DeleteKeys"))) {
239 smb_panic("not supported: **DeleteKeys");
240 *action = GP_REG_ACTION_DEL_KEYS;
244 DEBUG(0,("unknown value: %s\n", *value));
249 /****************************************************************
250 ****************************************************************/
252 static bool gp_reg_entry_from_file_entry(TALLOC_CTX *mem_ctx,
253 struct gp_registry_file_entry *file_entry,
254 struct gp_registry_entry **reg_entry)
256 struct registry_value *data = NULL;
257 struct gp_registry_entry *entry = NULL;
260 enum gp_reg_action action = GP_REG_ACTION_NONE;
261 size_t converted_size;
263 ZERO_STRUCTP(*reg_entry);
265 data = TALLOC_ZERO_P(mem_ctx, struct registry_value);
269 if (strlen_w((const smb_ucs2_t *)file_entry->key.buffer) <= 0)
272 if (!pull_ucs2_talloc(mem_ctx, &key, file_entry->key.buffer,
278 if (strlen_w((const smb_ucs2_t *)file_entry->value.buffer) > 0 &&
279 !pull_ucs2_talloc(mem_ctx, &value, file_entry->value.buffer,
285 if (!reg_parse_value(mem_ctx, &value, &action))
288 data->type = file_entry->type;
290 switch (data->type) {
292 data->v.dword = atoi((char *)file_entry->data);
295 data->v.binary = data_blob_talloc(mem_ctx,
302 if (!pull_ucs2_talloc(mem_ctx, &data->v.sz.str,
310 case REG_DWORD_BIG_ENDIAN:
315 /* case REG_DWORD_LITTLE_ENDIAN: */
316 /* case REG_QWORD_LITTLE_ENDIAN: */
317 printf("not yet implemented: %d\n", data->type);
320 printf("invalid reg type defined: %d\n", data->type);
325 entry = TALLOC_ZERO_P(mem_ctx, struct gp_registry_entry);
330 entry->value = value;
332 entry->action = action;
339 /****************************************************************
340 * [key;value;type;size;data][key;value;type;size;data]...
341 ****************************************************************/
343 static bool reg_parse_entries(TALLOC_CTX *mem_ctx,
345 struct gp_registry_entry **entries,
351 if (!entries || !num_entries)
354 prs_debug(ps, depth, desc, "reg_parse_entries");
360 while (ps->buffer_size > ps->data_offset) {
362 struct gp_registry_file_entry f_entry;
363 struct gp_registry_entry *r_entry = NULL;
365 if (!reg_parse_entry(mem_ctx, desc, &f_entry,
369 if (!gp_reg_entry_from_file_entry(mem_ctx,
374 if (!add_gp_registry_entry_to_array(mem_ctx,
384 /****************************************************************
385 ****************************************************************/
387 static NTSTATUS reg_parse_registry(TALLOC_CTX *mem_ctx,
389 const char *filename,
390 struct gp_registry_entry **entries,
393 uint16_t *buf = NULL;
397 struct gp_registry_file *reg_file;
398 const char *real_filename = NULL;
400 reg_file = TALLOC_ZERO_P(mem_ctx, struct gp_registry_file);
401 NT_STATUS_HAVE_NO_MEMORY(reg_file);
403 status = gp_find_file(mem_ctx,
408 if (!NT_STATUS_IS_OK(status)) {
409 TALLOC_FREE(reg_file);
413 buf = (uint16 *)file_load(real_filename, &n, 0, NULL);
415 TALLOC_FREE(reg_file);
416 return NT_STATUS_CANNOT_LOAD_REGISTRY_FILE;
419 if (!prs_init(&ps, n, mem_ctx, UNMARSHALL)) {
420 status = NT_STATUS_NO_MEMORY;
424 if (!prs_copy_data_in(&ps, (char *)buf, n)) {
425 status = NT_STATUS_NO_MEMORY;
429 prs_set_offset(&ps, 0);
431 if (!reg_parse_header("header", ®_file->header, &ps, 0)) {
432 status = NT_STATUS_REGISTRY_IO_FAILED;
436 if (reg_file->header.signature != GP_REGPOL_FILE_SIGNATURE) {
437 status = NT_STATUS_INVALID_PARAMETER;
441 if (reg_file->header.version != GP_REGPOL_FILE_VERSION) {
442 status = NT_STATUS_INVALID_PARAMETER;
446 if (!reg_parse_entries(mem_ctx, "entries", ®_file->entries,
447 ®_file->num_entries, &ps, 0)) {
448 status = NT_STATUS_REGISTRY_IO_FAILED;
452 *entries = reg_file->entries;
453 *num_entries = reg_file->num_entries;
455 status = NT_STATUS_OK;
464 /****************************************************************
465 ****************************************************************/
467 static WERROR reg_apply_registry(TALLOC_CTX *mem_ctx,
468 const struct nt_user_token *token,
469 struct registry_key *root_key,
471 struct gp_registry_entry *entries,
474 struct gp_registry_context *reg_ctx = NULL;
478 if (num_entries == 0) {
483 if (flags & GPO_LIST_FLAG_MACHINE) {
484 werr = gp_init_reg_ctx(mem_ctx, KEY_HKLM, REG_KEY_WRITE,
488 werr = gp_init_reg_ctx(mem_ctx, KEY_HKCU, REG_KEY_WRITE,
492 W_ERROR_NOT_OK_RETURN(werr);
494 for (i=0; i<num_entries; i++) {
496 /* FIXME: maybe we should check here if we attempt to go beyond
497 * the 4 allowed reg keys */
499 werr = reg_apply_registry_entry(mem_ctx, root_key,
503 if (!W_ERROR_IS_OK(werr)) {
504 DEBUG(0,("failed to apply registry: %s\n",
511 gp_free_reg_ctx(reg_ctx);
516 /****************************************************************
517 ****************************************************************/
519 static NTSTATUS registry_process_group_policy(ADS_STRUCT *ads,
522 struct registry_key *root_key,
523 const struct nt_user_token *token,
524 struct GROUP_POLICY_OBJECT *gpo,
525 const char *extension_guid,
526 const char *snapin_guid)
530 struct gp_registry_entry *entries = NULL;
531 size_t num_entries = 0;
532 char *unix_path = NULL;
534 debug_gpext_header(0, "registry_process_group_policy", flags, gpo,
535 extension_guid, snapin_guid);
537 status = gpo_get_unix_path(mem_ctx, gpo, &unix_path);
538 NT_STATUS_NOT_OK_RETURN(status);
540 status = reg_parse_registry(mem_ctx,
545 if (!NT_STATUS_IS_OK(status)) {
546 DEBUG(0,("failed to parse registry: %s\n",
551 dump_reg_entries(flags, "READ", entries, num_entries);
553 werr = reg_apply_registry(mem_ctx, token, root_key, flags,
554 entries, num_entries);
555 if (!W_ERROR_IS_OK(werr)) {
556 DEBUG(0,("failed to apply registry: %s\n",
558 return werror_to_ntstatus(werr);
564 /****************************************************************
565 ****************************************************************/
567 static NTSTATUS registry_get_reg_config(TALLOC_CTX *mem_ctx,
568 struct gp_extension_reg_info **reg_info)
571 struct gp_extension_reg_info *info = NULL;
572 struct gp_extension_reg_table table[] = {
573 { "ProcessGroupPolicy", REG_SZ, "registry_process_group_policy" },
574 { NULL, REG_NONE, NULL }
577 info = TALLOC_ZERO_P(mem_ctx, struct gp_extension_reg_info);
578 NT_STATUS_HAVE_NO_MEMORY(info);
580 status = gp_ext_info_add_entry(mem_ctx, GP_EXT_NAME,
581 GP_EXT_GUID_REGISTRY,
583 NT_STATUS_NOT_OK_RETURN(status);
590 /****************************************************************
591 ****************************************************************/
593 static NTSTATUS registry_initialize(TALLOC_CTX *mem_ctx)
598 /****************************************************************
599 ****************************************************************/
601 static NTSTATUS registry_shutdown(void)
605 status = unregister_gp_extension(GP_EXT_NAME);
606 if (NT_STATUS_IS_OK(status)) {
615 /****************************************************************
616 ****************************************************************/
618 static struct gp_extension_methods registry_methods = {
619 .initialize = registry_initialize,
620 .process_group_policy = registry_process_group_policy,
621 .get_reg_config = registry_get_reg_config,
622 .shutdown = registry_shutdown
625 /****************************************************************
626 ****************************************************************/
628 NTSTATUS gpext_registry_init(void)
632 ctx = talloc_init("gpext_registry_init");
633 NT_STATUS_HAVE_NO_MEMORY(ctx);
635 status = register_gp_extension(ctx, SMB_GPEXT_INTERFACE_VERSION,
636 GP_EXT_NAME, GP_EXT_GUID_REGISTRY,
638 if (!NT_STATUS_IS_OK(status)) {