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/*
ldb database library - samba extensions
Copyright (C) Andrew Tridgell 2010
** NOTE! The following LGPL license applies to the ldb
** library. This does NOT imply that all of Samba is released
** under the LGPL
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "ldb_module.h"
#include "lib/cmdline/cmdline.h"
#include "auth/gensec/gensec.h"
#include "auth/auth.h"
#include "param/param.h"
#include "dsdb/samdb/samdb.h"
#include "dsdb/common/util.h"
#include "ldb_wrap.h"
#include "popt.h"
static bool is_popt_table_end(const struct poptOption *o)
{
if (o->longName == NULL &&
o->shortName =='\0' &&
o->arg == NULL) {
return true;
}
return false;
}
/*
work out the length of a popt array
*/
static size_t calculate_popt_array_length(struct poptOption *opts)
{
size_t i = 0;
for (i = 0; i < UINT32_MAX; i++) {
struct poptOption *o = &(opts[i]);
if (is_popt_table_end(o)) {
break;
}
}
return i;
}
/*
called to register additional command line options
*/
static int extensions_hook(struct ldb_context *ldb, enum ldb_module_hook_type t)
{
switch (t) {
case LDB_MODULE_HOOK_CMDLINE_OPTIONS: {
size_t len1, len2;
struct poptOption **popt_options = ldb_module_popt_options(ldb);
struct poptOption *new_array = NULL;
bool ok;
struct poptOption cmdline_extensions[] = {
POPT_COMMON_SAMBA_LDB
POPT_COMMON_CONNECTION
POPT_COMMON_CREDENTIALS
POPT_LEGACY_S4
POPT_COMMON_VERSION
POPT_TABLEEND
};
ok = samba_cmdline_init(ldb,
SAMBA_CMDLINE_CONFIG_CLIENT,
false /* require_smbconf */);
if (!ok) {
return ldb_oom(ldb);
}
len1 = calculate_popt_array_length(*popt_options);
len2 = calculate_popt_array_length(cmdline_extensions);
new_array = talloc_array(ldb,
struct poptOption,
len1 + len2 + 1);
if (NULL == new_array) {
return ldb_oom(ldb);
}
memcpy(new_array, *popt_options, len1*sizeof(struct poptOption));
memcpy(new_array+len1, cmdline_extensions, (1+len2)*sizeof(struct poptOption));
#ifdef DEVELOPER
ok = samba_cmdline_sanity_check(new_array);
if (!ok) {
talloc_free(new_array);
return ldb_error(ldb,
LDB_ERR_OPERATIONS_ERROR,
"Duplicate cmdline options detected!");
}
#endif
(*popt_options) = new_array;
return LDB_SUCCESS;
}
case LDB_MODULE_HOOK_CMDLINE_PRECONNECT: {
struct loadparm_context *lp_ctx = NULL;
struct cli_credentials *creds = NULL;
int r = ldb_register_samba_handlers(ldb);
if (r != LDB_SUCCESS) {
return ldb_operr(ldb);
}
gensec_init();
lp_ctx = samba_cmdline_get_lp_ctx();
creds = samba_cmdline_get_creds();
if (ldb_set_opaque(
ldb,
DSDB_SESSION_INFO,
system_session(lp_ctx))) {
return ldb_operr(ldb);
}
if (ldb_set_opaque(ldb, "credentials", creds)) {
return ldb_operr(ldb);
}
if (ldb_set_opaque(ldb, "loadparm", lp_ctx)) {
return ldb_operr(ldb);
}
ldb_set_utf8_fns(ldb, NULL, wrap_casefold);
break;
}
case LDB_MODULE_HOOK_CMDLINE_POSTCONNECT:
/* get the domain SID into the cache for SDDL processing */
samdb_domain_sid(ldb);
break;
}
return LDB_SUCCESS;
}
/*
initialise the module
*/
_PUBLIC_ int ldb_samba_extensions_init(const char *ldb_version)
{
ldb_register_hook(extensions_hook);
return LDB_SUCCESS;
}
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