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/*
* Unix SMB/CIFS implementation.
* Group Policy Support
* 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"
#include "gpo_ini.h"
/****************************************************************
****************************************************************/
static int gp_inifile_free_context(struct gp_inifile_context *ctx)
{
if (!ctx) {
return 0;
}
if (ctx->generated_filename) {
unlink(ctx->generated_filename);
ctx->generated_filename = NULL;
}
if (ctx->dict) {
iniparser_freedict(ctx->dict);
ctx->dict = NULL;
}
ctx = NULL;
return 0;
}
/****************************************************************
****************************************************************/
static NTSTATUS convert_file_from_ucs2(TALLOC_CTX *mem_ctx,
const char *filename_in,
char **filename_out)
{
int tmp_fd = 0;
uint8 *data_in = NULL;
uint8 *data_out = NULL;
char *tmp_name = NULL;
NTSTATUS status;
size_t n = 0;
if (!filename_out) {
return NT_STATUS_INVALID_PARAMETER;
}
data_in = (uint8 *)file_load(filename_in, &n, 0);
if (!data_in) {
status = NT_STATUS_NO_SUCH_FILE;
goto out;
}
tmp_name = talloc_asprintf(mem_ctx, "%s/convert_file_from_ucs2.XXXXXX",
tmpdir());
if (!tmp_name) {
status = NT_STATUS_NO_MEMORY;
goto out;
}
tmp_fd = smb_mkstemp(tmp_name);
if (tmp_fd == -1) {
status = NT_STATUS_ACCESS_DENIED;
goto out;
}
n = convert_string_talloc(mem_ctx, CH_UTF16LE, CH_UNIX,
data_in, n, &data_out, False);
if (n == -1) {
status = NT_STATUS_INVALID_BUFFER_SIZE;
goto out;
}
/* skip utf8 BOM */
DEBUG(11,("convert_file_from_ucs2: "
"data_out[0]: 0x%x, data_out[1]: 0x%x, data_out[2]: 0x%x\n",
data_out[0], data_out[1], data_out[2]));
if ((data_out[0] == 0xef) && (data_out[1] == 0xbb) &&
(data_out[2] == 0xbf)) {
DEBUG(11,("convert_file_from_ucs2: "
"%s skipping utf8 BOM\n", tmp_name));
data_out += 3;
n -= 3;
}
if (sys_write(tmp_fd, data_out, n) != n) {
status = map_nt_error_from_unix(errno);
goto out;
}
*filename_out = tmp_name;
status = NT_STATUS_OK;
out:
if (tmp_fd) {
close(tmp_fd);
}
SAFE_FREE(data_in);
return status;
}
/****************************************************************
****************************************************************/
NTSTATUS gp_inifile_init_context(TALLOC_CTX *mem_ctx,
uint32_t flags,
const char *unix_path,
const char *suffix,
struct gp_inifile_context **ctx_ret)
{
struct gp_inifile_context *ctx = NULL;
NTSTATUS status;
dictionary *dict = NULL;
char *tmp_filename = NULL;
const char *ini_filename = NULL;
if (!unix_path || !ctx_ret) {
return NT_STATUS_INVALID_PARAMETER;
}
ctx = TALLOC_ZERO_P(mem_ctx, struct gp_inifile_context);
NT_STATUS_HAVE_NO_MEMORY(ctx);
talloc_set_destructor(ctx, gp_inifile_free_context);
status = gp_find_file(mem_ctx, flags, unix_path, suffix,
&ini_filename);
if (!NT_STATUS_IS_OK(status)) {
goto failed;
}
status = convert_file_from_ucs2(mem_ctx, ini_filename,
&tmp_filename);
if (!NT_STATUS_IS_OK(status)) {
goto failed;
}
dict = iniparser_load(tmp_filename);
if (!dict) {
status = NT_STATUS_NO_SUCH_FILE;
goto failed;
}
ctx->generated_filename = tmp_filename;
ctx->dict = dict;
ctx->mem_ctx = mem_ctx;
*ctx_ret = ctx;
return NT_STATUS_OK;
failed:
DEBUG(1,("gp_inifile_init_context failed: %s\n",
nt_errstr(status)));
TALLOC_FREE(ctx);
return status;
}
/****************************************************************
parse the local gpt.ini file
****************************************************************/
#define GPT_INI_SECTION_GENERAL "General"
#define GPT_INI_PARAMETER_VERSION "Version"
#define GPT_INI_PARAMETER_DISPLAYNAME "displayName"
NTSTATUS parse_gpt_ini(TALLOC_CTX *mem_ctx,
const char *filename,
uint32_t *version,
char **display_name)
{
NTSTATUS result;
uint32_t v = 0;
char *name = NULL;
dictionary *dict = NULL;
if (!filename) {
return NT_STATUS_INVALID_PARAMETER;
}
dict = iniparser_load(filename);
if (!dict) {
return NT_STATUS_NO_SUCH_FILE;
}
if ((name = iniparser_getstring(dict, GPT_INI_SECTION_GENERAL
":"GPT_INI_PARAMETER_DISPLAYNAME, NULL)) == NULL) {
/* the default domain policy and the default domain controller
* policy never have a displayname in their gpt.ini file */
DEBUG(10,("parse_gpt_ini: no name in %s\n", filename));
}
if (name && display_name) {
*display_name = talloc_strdup(mem_ctx, name);
if (*display_name == NULL) {
result = NT_STATUS_NO_MEMORY;
goto out;
}
}
if ((v = iniparser_getint(dict, GPT_INI_SECTION_GENERAL
":"GPT_INI_PARAMETER_VERSION, Undefined)) == Undefined) {
DEBUG(10,("parse_gpt_ini: no version\n"));
result = NT_STATUS_INTERNAL_DB_CORRUPTION;
goto out;
}
if (version) {
*version = v;
}
result = NT_STATUS_OK;
out:
if (dict) {
iniparser_freedict(dict);
}
return result;
}
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