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samba-mirror/source4/lib/registry/local.c
Günther Deschner de2f32d630 werror: replace WERR_INVALID_PARAM with WERR_INVALID_PARAMETER in source4/lib/registry/
Guenther

Signed-off-by: Guenther Deschner <gd@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2016-09-28 00:04:23 +02:00

409 lines
11 KiB
C

/*
Unix SMB/CIFS implementation.
Transparent registry backend handling
Copyright (C) Jelmer Vernooij 2003-2007.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#include "../lib/util/dlinklist.h"
#include "lib/registry/registry.h"
#include "system/filesys.h"
struct reg_key_path {
uint32_t predefined_key;
const char **elements;
};
struct registry_local {
const struct registry_operations *ops;
struct mountpoint {
struct reg_key_path path;
struct hive_key *key;
struct mountpoint *prev, *next;
} *mountpoints;
};
struct local_key {
struct registry_key global;
struct reg_key_path path;
struct hive_key *hive_key;
};
struct registry_key *reg_import_hive_key(struct registry_context *ctx,
struct hive_key *hive,
uint32_t predefined_key,
const char **elements)
{
struct local_key *local_key;
struct reg_key_path parent_path;
parent_path.predefined_key = predefined_key;
parent_path.elements = elements;
local_key = talloc(ctx, struct local_key);
if (local_key != NULL) {
local_key->hive_key = talloc_reference(local_key, hive);
local_key->global.context = talloc_reference(local_key, ctx);
local_key->path = parent_path;
}
return (struct registry_key *)local_key;
}
static WERROR local_open_key(TALLOC_CTX *mem_ctx,
struct registry_key *parent,
const char *path,
struct registry_key **result)
{
char *orig, *curbegin, *curend;
struct local_key *local_parent = talloc_get_type(parent,
struct local_key);
struct hive_key *curkey = local_parent->hive_key;
WERROR error;
const char **elements = NULL;
int el;
if (path == NULL || path[0] == '\0') {
return WERR_INVALID_PARAMETER;
}
orig = talloc_strdup(mem_ctx, path);
W_ERROR_HAVE_NO_MEMORY(orig);
curbegin = orig;
curend = strchr(orig, '\\');
if (local_parent->path.elements != NULL) {
elements = talloc_array(mem_ctx, const char *,
str_list_length(local_parent->path.elements) + 1);
W_ERROR_HAVE_NO_MEMORY(elements);
for (el = 0; local_parent->path.elements[el] != NULL; el++) {
elements[el] = talloc_reference(elements,
local_parent->path.elements[el]);
}
elements[el] = NULL;
} else {
elements = NULL;
el = 0;
}
do {
if (curend != NULL)
*curend = '\0';
elements = talloc_realloc(mem_ctx, elements, const char *, el+2);
W_ERROR_HAVE_NO_MEMORY(elements);
elements[el] = talloc_strdup(elements, curbegin);
W_ERROR_HAVE_NO_MEMORY(elements[el]);
el++;
elements[el] = NULL;
error = hive_get_key_by_name(mem_ctx, curkey,
curbegin, &curkey);
if (!W_ERROR_IS_OK(error)) {
DEBUG(2, ("Opening key %s failed: %s\n", curbegin,
win_errstr(error)));
talloc_free(orig);
return error;
}
if (curend == NULL)
break;
curbegin = curend + 1;
curend = strchr(curbegin, '\\');
} while (curbegin[0] != '\0');
talloc_free(orig);
*result = reg_import_hive_key(local_parent->global.context, curkey,
local_parent->path.predefined_key,
talloc_steal(curkey, elements));
return WERR_OK;
}
WERROR local_get_predefined_key(struct registry_context *ctx,
uint32_t key_id, struct registry_key **key)
{
struct registry_local *rctx = talloc_get_type(ctx,
struct registry_local);
struct mountpoint *mp;
for (mp = rctx->mountpoints; mp != NULL; mp = mp->next) {
if (mp->path.predefined_key == key_id &&
mp->path.elements == NULL)
break;
}
if (mp == NULL)
return WERR_FILE_NOT_FOUND;
*key = reg_import_hive_key(ctx, mp->key,
mp->path.predefined_key,
mp->path.elements);
return WERR_OK;
}
static WERROR local_enum_key(TALLOC_CTX *mem_ctx,
const struct registry_key *key, uint32_t idx,
const char **name,
const char **keyclass,
NTTIME *last_changed_time)
{
const struct local_key *local = (const struct local_key *)key;
return hive_enum_key(mem_ctx, local->hive_key, idx, name, keyclass,
last_changed_time);
}
static WERROR local_create_key(TALLOC_CTX *mem_ctx,
struct registry_key *parent,
const char *path,
const char *key_class,
struct security_descriptor *security,
struct registry_key **result)
{
char *orig, *curbegin, *curend;
struct local_key *local_parent = talloc_get_type(parent,
struct local_key);
struct hive_key *curkey = local_parent->hive_key;
WERROR error;
const char **elements = NULL;
int el;
if (path == NULL || path[0] == '\0') {
return WERR_INVALID_PARAMETER;
}
orig = talloc_strdup(mem_ctx, path);
W_ERROR_HAVE_NO_MEMORY(orig);
curbegin = orig;
curend = strchr(orig, '\\');
if (local_parent->path.elements != NULL) {
elements = talloc_array(mem_ctx, const char *,
str_list_length(local_parent->path.elements) + 1);
W_ERROR_HAVE_NO_MEMORY(elements);
for (el = 0; local_parent->path.elements[el] != NULL; el++) {
elements[el] = talloc_reference(elements,
local_parent->path.elements[el]);
}
elements[el] = NULL;
} else {
elements = NULL;
el = 0;
}
do {
if (curend != NULL)
*curend = '\0';
elements = talloc_realloc(mem_ctx, elements, const char *, el+2);
W_ERROR_HAVE_NO_MEMORY(elements);
elements[el] = talloc_strdup(elements, curbegin);
W_ERROR_HAVE_NO_MEMORY(elements[el]);
el++;
elements[el] = NULL;
error = hive_get_key_by_name(mem_ctx, curkey,
curbegin, &curkey);
if (W_ERROR_EQUAL(error, WERR_FILE_NOT_FOUND)) {
error = hive_key_add_name(mem_ctx, curkey, curbegin,
key_class, security,
&curkey);
}
if (!W_ERROR_IS_OK(error)) {
DEBUG(2, ("Open/Creation of key %s failed: %s\n",
curbegin, win_errstr(error)));
talloc_free(orig);
return error;
}
if (curend == NULL)
break;
curbegin = curend + 1;
curend = strchr(curbegin, '\\');
} while (curbegin[0] != '\0');
talloc_free(orig);
*result = reg_import_hive_key(local_parent->global.context, curkey,
local_parent->path.predefined_key,
talloc_steal(curkey, elements));
return WERR_OK;
}
static WERROR local_set_value(struct registry_key *key, const char *name,
uint32_t type, const DATA_BLOB data)
{
struct local_key *local = (struct local_key *)key;
if (name == NULL) {
return WERR_INVALID_PARAMETER;
}
return hive_key_set_value(local->hive_key, name, type, data);
}
static WERROR local_get_value(TALLOC_CTX *mem_ctx,
const struct registry_key *key,
const char *name, uint32_t *type, DATA_BLOB *data)
{
const struct local_key *local = (const struct local_key *)key;
if (name == NULL) {
return WERR_INVALID_PARAMETER;
}
return hive_get_value(mem_ctx, local->hive_key, name, type, data);
}
static WERROR local_enum_value(TALLOC_CTX *mem_ctx,
const struct registry_key *key, uint32_t idx,
const char **name,
uint32_t *type,
DATA_BLOB *data)
{
const struct local_key *local = (const struct local_key *)key;
return hive_get_value_by_index(mem_ctx, local->hive_key, idx,
name, type, data);
}
static WERROR local_delete_key(TALLOC_CTX *mem_ctx, struct registry_key *key,
const char *name)
{
const struct local_key *local = (const struct local_key *)key;
if (name == NULL) {
return WERR_INVALID_PARAMETER;
}
return hive_key_del(mem_ctx, local->hive_key, name);
}
static WERROR local_delete_value(TALLOC_CTX *mem_ctx, struct registry_key *key,
const char *name)
{
const struct local_key *local = (const struct local_key *)key;
if (name == NULL) {
return WERR_INVALID_PARAMETER;
}
return hive_key_del_value(mem_ctx, local->hive_key, name);
}
static WERROR local_flush_key(struct registry_key *key)
{
const struct local_key *local = (const struct local_key *)key;
return hive_key_flush(local->hive_key);
}
static WERROR local_get_key_info(TALLOC_CTX *mem_ctx,
const struct registry_key *key,
const char **classname,
uint32_t *num_subkeys,
uint32_t *num_values,
NTTIME *last_change_time,
uint32_t *max_subkeynamelen,
uint32_t *max_valnamelen,
uint32_t *max_valbufsize)
{
const struct local_key *local = (const struct local_key *)key;
return hive_key_get_info(mem_ctx, local->hive_key,
classname, num_subkeys, num_values,
last_change_time, max_subkeynamelen,
max_valnamelen, max_valbufsize);
}
static WERROR local_get_sec_desc(TALLOC_CTX *mem_ctx,
const struct registry_key *key,
struct security_descriptor **security)
{
const struct local_key *local = (const struct local_key *)key;
return hive_get_sec_desc(mem_ctx, local->hive_key, security);
}
static WERROR local_set_sec_desc(struct registry_key *key,
const struct security_descriptor *security)
{
const struct local_key *local = (const struct local_key *)key;
return hive_set_sec_desc(local->hive_key, security);
}
const static struct registry_operations local_ops = {
.name = "local",
.open_key = local_open_key,
.get_predefined_key = local_get_predefined_key,
.enum_key = local_enum_key,
.create_key = local_create_key,
.set_value = local_set_value,
.get_value = local_get_value,
.enum_value = local_enum_value,
.delete_key = local_delete_key,
.delete_value = local_delete_value,
.flush_key = local_flush_key,
.get_key_info = local_get_key_info,
.get_sec_desc = local_get_sec_desc,
.set_sec_desc = local_set_sec_desc,
};
WERROR reg_open_local(TALLOC_CTX *mem_ctx, struct registry_context **ctx)
{
struct registry_local *ret = talloc_zero(mem_ctx,
struct registry_local);
W_ERROR_HAVE_NO_MEMORY(ret);
ret->ops = &local_ops;
*ctx = (struct registry_context *)ret;
return WERR_OK;
}
WERROR reg_mount_hive(struct registry_context *rctx,
struct hive_key *hive_key,
uint32_t key_id,
const char **elements)
{
struct registry_local *reg_local = talloc_get_type(rctx,
struct registry_local);
struct mountpoint *mp;
unsigned int i = 0;
mp = talloc(rctx, struct mountpoint);
W_ERROR_HAVE_NO_MEMORY(mp);
mp->path.predefined_key = key_id;
mp->prev = mp->next = NULL;
mp->key = hive_key;
if (elements != NULL && elements[0] != NULL) {
mp->path.elements = talloc_array(mp, const char *,
str_list_length(elements));
W_ERROR_HAVE_NO_MEMORY(mp->path.elements);
for (i = 0; elements[i] != NULL; i++) {
mp->path.elements[i] = talloc_reference(mp->path.elements,
elements[i]);
}
mp->path.elements[i] = NULL;
} else {
mp->path.elements = NULL;
}
DLIST_ADD(reg_local->mountpoints, mp);
return WERR_OK;
}