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/*
* Unix SMB/CIFS implementation.
* libnet smbconf registry Support
* Copyright (C) Michael Adam 2007
* Copyright (C) Guenther Deschner 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, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
/*
* Open a subkey of KEY_SMBCONF (i.e a service)
* - variant without error output (q = quiet)-
*/
static WERROR libnet_smbconf_open_path_q(TALLOC_CTX *ctx,
const char *subkeyname,
uint32 desired_access,
struct registry_key **key)
{
WERROR werr = WERR_OK;
char *path = NULL;
NT_USER_TOKEN *token;
if (!(token = registry_create_admin_token(ctx))) {
DEBUG(1, ("Error creating admin token\n"));
goto done;
}
if (subkeyname == NULL) {
path = talloc_strdup(ctx, KEY_SMBCONF);
} else {
path = talloc_asprintf(ctx, "%s\\%s", KEY_SMBCONF, subkeyname);
}
werr = reg_open_path(ctx, path, desired_access,
token, key);
done:
TALLOC_FREE(path);
return werr;
}
/*
* check if a subkey of KEY_SMBCONF of a given name exists
*/
bool libnet_smbconf_key_exists(TALLOC_CTX *ctx, const char *subkeyname)
{
bool ret = False;
WERROR werr = WERR_OK;
TALLOC_CTX *mem_ctx;
struct registry_key *key;
if (!(mem_ctx = talloc_new(ctx))) {
d_fprintf(stderr, "ERROR: Out of memory...!\n");
goto done;
}
werr = libnet_smbconf_open_path_q(mem_ctx, subkeyname, REG_KEY_READ, &key);
if (W_ERROR_IS_OK(werr)) {
ret = True;
}
done:
TALLOC_FREE(mem_ctx);
return ret;
}
/*
* Open a subkey of KEY_SMBCONF (i.e a service)
* - variant with error output -
*/
WERROR libnet_smbconf_open_path(TALLOC_CTX *ctx, const char *subkeyname,
uint32 desired_access,
struct registry_key **key)
{
WERROR werr = WERR_OK;
werr = libnet_smbconf_open_path_q(ctx, subkeyname, desired_access, key);
if (!W_ERROR_IS_OK(werr)) {
d_fprintf(stderr, "Error opening registry path '%s\\%s': %s\n",
KEY_SMBCONF,
(subkeyname == NULL) ? "" : subkeyname,
dos_errstr(werr));
}
return werr;
}
/*
* open the base key KEY_SMBCONF
*/
WERROR libnet_smbconf_open_basepath(TALLOC_CTX *ctx, uint32 desired_access,
struct registry_key **key)
{
return libnet_smbconf_open_path(ctx, NULL, desired_access, key);
}
/*
* create a subkey of KEY_SMBCONF
*/
WERROR libnet_reg_createkey_internal(TALLOC_CTX *ctx,
const char * subkeyname,
struct registry_key **newkey)
{
WERROR werr = WERR_OK;
struct registry_key *create_parent = NULL;
TALLOC_CTX *create_ctx;
enum winreg_CreateAction action = REG_ACTION_NONE;
/* create a new talloc ctx for creation. it will hold
* the intermediate parent key (SMBCONF) for creation
* and will be destroyed when leaving this function... */
if (!(create_ctx = talloc_new(ctx))) {
werr = WERR_NOMEM;
goto done;
}
werr = libnet_smbconf_open_basepath(create_ctx, REG_KEY_WRITE, &create_parent);
if (!W_ERROR_IS_OK(werr)) {
goto done;
}
werr = reg_createkey(ctx, create_parent, subkeyname,
REG_KEY_WRITE, newkey, &action);
if (W_ERROR_IS_OK(werr) && (action != REG_CREATED_NEW_KEY)) {
d_fprintf(stderr, "Key '%s' already exists.\n", subkeyname);
werr = WERR_ALREADY_EXISTS;
}
if (!W_ERROR_IS_OK(werr)) {
d_fprintf(stderr, "Error creating key %s: %s\n",
subkeyname, dos_errstr(werr));
}
done:
TALLOC_FREE(create_ctx);
return werr;
}
static WERROR do_modify_val_config(struct registry_key *key,
const char *val_name,
const char *val_data)
{
struct registry_value val;
ZERO_STRUCT(val);
val.type = REG_SZ;
val.v.sz.str = CONST_DISCARD(char *, val_data);
val.v.sz.len = strlen(val_data) + 1;
return reg_setvalue(key, val_name, &val);
}
WERROR libnet_smbconf_set_global_param(TALLOC_CTX *mem_ctx,
const char *param,
const char *val)
{
WERROR werr;
struct registry_key *key = NULL;
if (!lp_include_registry_globals()) {
return WERR_NOT_SUPPORTED;
}
if (!registry_init_regdb()) {
return WERR_REG_IO_FAILURE;
}
if (!libnet_smbconf_key_exists(mem_ctx, GLOBAL_NAME)) {
werr = libnet_reg_createkey_internal(mem_ctx,
GLOBAL_NAME, &key);
} else {
werr = libnet_smbconf_open_path(mem_ctx,
GLOBAL_NAME,
REG_KEY_WRITE, &key);
}
if (!W_ERROR_IS_OK(werr)) {
return werr;
}
return do_modify_val_config(key, param, val);
}
bool libnet_smbconf_value_exists(TALLOC_CTX *ctx,
struct registry_key *key,
const char *param)
{
bool ret = False;
WERROR werr = WERR_OK;
struct registry_value *value = NULL;
werr = reg_queryvalue(ctx, key, param, &value);
if (W_ERROR_IS_OK(werr)) {
ret = True;
}
TALLOC_FREE(value);
return ret;
}
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