2 * Unix SMB/CIFS implementation.
4 * Copyright (C) Guenther Deschner 2007-2008,2010
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/>.
21 #include "../libgpo/gpo_ini.h"
22 #include "../libgpo/gpo.h"
23 #include "libgpo/gpo_proto.h"
25 #include "../librpc/gen_ndr/ndr_preg.h"
27 #define GP_EXT_NAME "registry"
29 /* more info can be found at:
30 * http://msdn2.microsoft.com/en-us/library/aa374407.aspx */
32 #define GP_REGPOL_FILE "Registry.pol"
34 #define GP_REGPOL_FILE_SIGNATURE 0x67655250 /* 'PReg' */
35 #define GP_REGPOL_FILE_VERSION 1
37 static TALLOC_CTX *ctx = NULL;
39 /****************************************************************
40 ****************************************************************/
42 static bool reg_parse_value(TALLOC_CTX *mem_ctx,
44 enum gp_reg_action *action)
47 *action = GP_REG_ACTION_ADD_KEY;
51 if (strncmp(*value, "**", 2) != 0) {
52 *action = GP_REG_ACTION_ADD_VALUE;
56 if (strnequal(*value, "**DelVals.", 10)) {
57 *action = GP_REG_ACTION_DEL_ALL_VALUES;
61 if (strnequal(*value, "**Del.", 6)) {
62 *value = talloc_strdup(mem_ctx, *value + 6);
63 *action = GP_REG_ACTION_DEL_VALUE;
67 if (strnequal(*value, "**SecureKey", 11)) {
68 if (strnequal(*value, "**SecureKey=1", 13)) {
69 *action = GP_REG_ACTION_SEC_KEY_SET;
73 /*************** not tested from here on ***************/
74 if (strnequal(*value, "**SecureKey=0", 13)) {
75 smb_panic("not supported: **SecureKey=0");
76 *action = GP_REG_ACTION_SEC_KEY_RESET;
79 DEBUG(0,("unknown: SecureKey: %s\n", *value));
80 smb_panic("not supported SecureKey method");
84 if (strnequal(*value, "**DeleteValues", strlen("**DeleteValues"))) {
85 smb_panic("not supported: **DeleteValues");
86 *action = GP_REG_ACTION_DEL_VALUES;
90 if (strnequal(*value, "**DeleteKeys", strlen("**DeleteKeys"))) {
91 smb_panic("not supported: **DeleteKeys");
92 *action = GP_REG_ACTION_DEL_KEYS;
96 DEBUG(0,("unknown value: %s\n", *value));
101 /****************************************************************
102 ****************************************************************/
104 static bool gp_reg_entry_from_file_entry(TALLOC_CTX *mem_ctx,
105 struct preg_entry *r,
106 struct gp_registry_entry **reg_entry)
108 struct registry_value *data = NULL;
109 struct gp_registry_entry *entry = NULL;
110 enum gp_reg_action action = GP_REG_ACTION_NONE;
112 ZERO_STRUCTP(*reg_entry);
114 data = talloc_zero(mem_ctx, struct registry_value);
118 data->type = r->type;
119 data->data = data_blob_talloc(data, r->data, r->size);
121 entry = talloc_zero(mem_ctx, struct gp_registry_entry);
125 if (!reg_parse_value(mem_ctx, &r->valuename, &action))
128 entry->key = talloc_strdup(entry, r->keyname);
129 entry->value = talloc_strdup(entry, r->valuename);
131 entry->action = action;
138 /****************************************************************
139 ****************************************************************/
141 static NTSTATUS reg_parse_registry(TALLOC_CTX *mem_ctx,
143 const char *filename,
144 struct gp_registry_entry **entries_p,
145 size_t *num_entries_p)
149 enum ndr_err_code ndr_err;
150 const char *real_filename = NULL;
152 struct gp_registry_entry *entries = NULL;
153 size_t num_entries = 0;
156 status = gp_find_file(mem_ctx,
161 if (!NT_STATUS_IS_OK(status)) {
165 blob.data = (uint8_t *)file_load(real_filename, &blob.length, 0, NULL);
167 return NT_STATUS_CANNOT_LOAD_REGISTRY_FILE;
170 ndr_err = ndr_pull_struct_blob(&blob, mem_ctx, &r,
171 (ndr_pull_flags_fn_t)ndr_pull_preg_file);
172 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
173 status = ndr_map_error2ntstatus(ndr_err);
177 if (!strequal(r.header.signature, "PReg")) {
178 status = NT_STATUS_INVALID_PARAMETER;
182 if (r.header.version != GP_REGPOL_FILE_VERSION) {
183 status = NT_STATUS_INVALID_PARAMETER;
187 for (i=0; i < r.num_entries; i++) {
189 struct gp_registry_entry *r_entry = NULL;
191 if (!gp_reg_entry_from_file_entry(mem_ctx,
194 status = NT_STATUS_NO_MEMORY;
198 if (!add_gp_registry_entry_to_array(mem_ctx,
202 status = NT_STATUS_NO_MEMORY;
207 *entries_p = entries;
208 *num_entries_p = num_entries;
210 status = NT_STATUS_OK;
213 data_blob_free(&blob);
217 /****************************************************************
218 ****************************************************************/
220 static WERROR reg_apply_registry(TALLOC_CTX *mem_ctx,
221 const struct security_token *token,
222 struct registry_key *root_key,
224 struct gp_registry_entry *entries,
227 struct gp_registry_context *reg_ctx = NULL;
231 if (num_entries == 0) {
236 if (flags & GPO_LIST_FLAG_MACHINE) {
237 werr = gp_init_reg_ctx(mem_ctx, KEY_HKLM, REG_KEY_WRITE,
241 werr = gp_init_reg_ctx(mem_ctx, KEY_HKCU, REG_KEY_WRITE,
245 W_ERROR_NOT_OK_RETURN(werr);
247 for (i=0; i<num_entries; i++) {
249 /* FIXME: maybe we should check here if we attempt to go beyond
250 * the 4 allowed reg keys */
252 werr = reg_apply_registry_entry(mem_ctx, root_key,
256 if (!W_ERROR_IS_OK(werr)) {
257 DEBUG(0,("failed to apply registry: %s\n",
264 gp_free_reg_ctx(reg_ctx);
269 /****************************************************************
270 ****************************************************************/
272 static NTSTATUS registry_process_group_policy(TALLOC_CTX *mem_ctx,
274 struct registry_key *root_key,
275 const struct security_token *token,
276 struct GROUP_POLICY_OBJECT *gpo,
277 const char *extension_guid,
278 const char *snapin_guid)
282 struct gp_registry_entry *entries = NULL;
283 size_t num_entries = 0;
284 char *unix_path = NULL;
286 gpext_debug_header(0, "registry_process_group_policy", flags, gpo,
287 extension_guid, snapin_guid);
289 status = gpo_get_unix_path(mem_ctx, cache_path(GPO_CACHE_DIR), gpo, &unix_path);
290 NT_STATUS_NOT_OK_RETURN(status);
292 status = reg_parse_registry(mem_ctx,
297 if (!NT_STATUS_IS_OK(status)) {
298 DEBUG(0,("failed to parse registry: %s\n",
303 dump_reg_entries(flags, "READ", entries, num_entries);
305 werr = reg_apply_registry(mem_ctx, token, root_key, flags,
306 entries, num_entries);
307 if (!W_ERROR_IS_OK(werr)) {
308 DEBUG(0,("failed to apply registry: %s\n",
310 return werror_to_ntstatus(werr);
316 /****************************************************************
317 ****************************************************************/
319 static NTSTATUS registry_get_reg_config(TALLOC_CTX *mem_ctx,
320 struct gp_extension_reg_info **reg_info)
323 struct gp_extension_reg_info *info = NULL;
324 struct gp_extension_reg_table table[] = {
325 { "ProcessGroupPolicy", REG_SZ, "registry_process_group_policy" },
326 { NULL, REG_NONE, NULL }
329 info = talloc_zero(mem_ctx, struct gp_extension_reg_info);
330 NT_STATUS_HAVE_NO_MEMORY(info);
332 status = gp_ext_info_add_entry(mem_ctx, GP_EXT_NAME,
333 GP_EXT_GUID_REGISTRY,
335 NT_STATUS_NOT_OK_RETURN(status);
342 /****************************************************************
343 ****************************************************************/
345 static NTSTATUS registry_initialize(TALLOC_CTX *mem_ctx)
350 /****************************************************************
351 ****************************************************************/
353 static NTSTATUS registry_shutdown(void)
357 status = unregister_gp_extension(GP_EXT_NAME);
358 if (NT_STATUS_IS_OK(status)) {
367 /****************************************************************
368 ****************************************************************/
370 static struct gp_extension_methods registry_methods = {
371 .initialize = registry_initialize,
372 .process_group_policy = registry_process_group_policy,
373 .get_reg_config = registry_get_reg_config,
374 .shutdown = registry_shutdown
377 /****************************************************************
378 ****************************************************************/
380 NTSTATUS gpext_registry_init(void)
384 ctx = talloc_init("gpext_registry_init");
385 NT_STATUS_HAVE_NO_MEMORY(ctx);
387 status = register_gp_extension(ctx, SMB_GPEXT_INTERFACE_VERSION,
388 GP_EXT_NAME, GP_EXT_GUID_REGISTRY,
390 if (!NT_STATUS_IS_OK(status)) {