2 Unix SMB/CIFS implementation.
3 Transparent registry backend handling
4 Copyright (C) Jelmer Vernooij 2003-2007.
5 Copyright (C) Wilco Baan Hofman 2010.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
22 #include "lib/registry/registry.h"
23 #include "librpc/gen_ndr/winreg.h"
25 _PUBLIC_ char *reg_val_data_string(TALLOC_CTX *mem_ctx, uint32_t type,
31 return talloc_strdup(mem_ctx, "");
36 convert_string_talloc(mem_ctx,
37 CH_UTF16, CH_UNIX, data.data, data.length,
38 (void **)&ret, NULL, false);
41 case REG_DWORD_BIG_ENDIAN:
42 SMB_ASSERT(data.length == sizeof(uint32_t));
43 ret = talloc_asprintf(mem_ctx, "0x%8.8x",
47 SMB_ASSERT(data.length == sizeof(uint64_t));
48 ret = talloc_asprintf(mem_ctx, "0x%16.16llx",
49 (long long)BVAL(data.data, 0));
52 ret = data_blob_hex_string_upper(mem_ctx, &data);
55 /* "NULL" is the right return value */
58 /* FIXME: We don't support this yet */
62 /* Other datatypes aren't supported -> return "NULL" */
69 /** Generate a string that describes a registry value */
70 _PUBLIC_ char *reg_val_description(TALLOC_CTX *mem_ctx,
75 return talloc_asprintf(mem_ctx, "%s = %s : %s", name?name:"<No Name>",
76 str_regtype(data_type),
77 reg_val_data_string(mem_ctx, data_type, data));
80 _PUBLIC_ bool reg_string_to_val(TALLOC_CTX *mem_ctx, const char *type_str,
81 const char *data_str, uint32_t *type, DATA_BLOB *data)
83 char *tmp_type_str, *p, *q;
86 *type = regtype_by_string(type_str);
89 /* Normal windows format is hex, hex(type int as string),
90 dword or just a string. */
91 if (strncmp(type_str, "hex(", 4) == 0) {
92 /* there is a hex string with the value type between
94 tmp_type_str = talloc_strdup(mem_ctx, type_str);
95 q = p = tmp_type_str + strlen("hex(");
97 /* Go to the closing brace or end of the string */
98 while (*q != ')' && *q != '\0') q++;
101 /* Convert hex string to int, store it in type */
102 result = sscanf(p, "%x", type);
104 DEBUG(0, ("Could not convert hex to int\n"));
107 DEBUG(10, ("Found string type: %s: %d\n", p, *type));
108 talloc_free(tmp_type_str);
109 } else if (strcmp(type_str, "hex") == 0) {
111 } else if (strcmp(type_str, "dword") == 0) {
119 /* Convert data appropriately */
124 return convert_string_talloc(mem_ctx,
125 CH_UNIX, CH_UTF16, data_str,
127 (void **)&data->data,
128 &data->length, false);
131 *data = strhex_to_data_blob(mem_ctx, data_str);
134 case REG_DWORD_BIG_ENDIAN: {
135 uint32_t tmp = strtol(data_str, NULL, 0);
136 *data = data_blob_talloc(mem_ctx, NULL, sizeof(uint32_t));
137 if (data->data == NULL) return false;
138 SIVAL(data->data, 0, tmp);
142 uint64_t tmp = strtoll(data_str, NULL, 0);
143 *data = data_blob_talloc(mem_ctx, NULL, sizeof(uint64_t));
144 if (data->data == NULL) return false;
145 SBVAL(data->data, 0, tmp);
152 /* FIXME: We don't support this yet */
156 /* Other datatypes aren't supported -> return no success */
162 /** Open a key by name (including the predefined key name!) */
163 WERROR reg_open_key_abs(TALLOC_CTX *mem_ctx, struct registry_context *handle,
164 const char *name, struct registry_key **result)
166 struct registry_key *predef;
171 if (strchr(name, '\\') != NULL)
172 predeflength = strchr(name, '\\')-name;
174 predeflength = strlen(name);
176 predefname = talloc_strndup(mem_ctx, name, predeflength);
177 W_ERROR_HAVE_NO_MEMORY(predefname);
178 error = reg_get_predefined_key_by_name(handle, predefname, &predef);
179 talloc_free(predefname);
181 if (!W_ERROR_IS_OK(error)) {
185 if (strchr(name, '\\')) {
186 return reg_open_key(mem_ctx, predef, strchr(name, '\\')+1,
194 static WERROR get_abs_parent(TALLOC_CTX *mem_ctx, struct registry_context *ctx,
195 const char *path, struct registry_key **parent,
201 if (strchr(path, '\\') == NULL) {
205 parent_name = talloc_strndup(mem_ctx, path, strrchr(path, '\\')-path);
206 W_ERROR_HAVE_NO_MEMORY(parent_name);
207 error = reg_open_key_abs(mem_ctx, ctx, parent_name, parent);
208 talloc_free(parent_name);
209 if (!W_ERROR_IS_OK(error)) {
213 *name = talloc_strdup(mem_ctx, strrchr(path, '\\')+1);
214 W_ERROR_HAVE_NO_MEMORY(*name);
219 WERROR reg_key_del_abs(struct registry_context *ctx, const char *path)
221 struct registry_key *parent;
223 TALLOC_CTX *mem_ctx = talloc_init("reg_key_del_abs");
226 if (!strchr(path, '\\')) {
230 error = get_abs_parent(mem_ctx, ctx, path, &parent, &n);
231 if (W_ERROR_IS_OK(error)) {
232 error = reg_key_del(mem_ctx, parent, n);
235 talloc_free(mem_ctx);
240 WERROR reg_key_add_abs(TALLOC_CTX *mem_ctx, struct registry_context *ctx,
241 const char *path, uint32_t access_mask,
242 struct security_descriptor *sec_desc,
243 struct registry_key **result)
245 struct registry_key *parent;
251 if (!strchr(path, '\\')) {
252 return WERR_ALREADY_EXISTS;
255 error = get_abs_parent(mem_ctx, ctx, path, &parent, &n);
256 if (!W_ERROR_IS_OK(error)) {
257 DEBUG(2, ("Opening parent of %s failed with %s\n", path,
262 error = reg_key_add_name(mem_ctx, parent, n, NULL, sec_desc, result);