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/*
Unix SMB/CIFS implementation.
Winbind ID Mapping
Copyright (C) Tim Potter 2000
Copyright (C) Anthony Liguori <aliguor@us.ibm.com> 2003
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 2 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 "winbindd.h"
static struct {
const char *name;
/* Function to create a member of the idmap_methods list */
BOOL (*reg_meth)(struct winbindd_idmap_methods **methods);
struct winbindd_idmap_methods *methods;
} builtin_winbindd_idmap_functions[] = {
{ "tdb", winbind_idmap_reg_tdb, NULL },
{ NULL, NULL, NULL }
};
/* singleton pattern: uberlazy evaluation */
static struct winbindd_idmap_methods *impl;
static struct winbindd_idmap_methods *get_impl(const char *name)
{
int i = 0;
struct winbindd_idmap_methods *ret = NULL;
while (builtin_winbindd_idmap_functions[i].name &&
strcmp(builtin_winbindd_idmap_functions[i].name, name)) {
i++;
}
if (builtin_winbindd_idmap_functions[i].name) {
if (!builtin_winbindd_idmap_functions[i].methods) {
builtin_winbindd_idmap_functions[i].reg_meth(&builtin_winbindd_idmap_functions[i].methods);
}
ret = builtin_winbindd_idmap_functions[i].methods;
}
return ret;
}
/* Initialize backend */
BOOL winbindd_idmap_init(void)
{
BOOL ret = False;
DEBUG(3, ("winbindd_idmap_init: using '%s' as backend\n",
lp_winbind_backend()));
if (!impl) {
impl = get_impl(lp_winbind_backend());
if (!impl) {
DEBUG(0, ("winbindd_idmap_init: could not load backend '%s'\n",
lp_winbind_backend()));
}
}
if (impl) {
ret = impl->init();
}
DEBUG(3, ("winbind_idmap_init: returning %s\n", ret ? "true" : "false"));
return ret;
}
/* Get UID from SID */
BOOL winbindd_idmap_get_uid_from_sid(DOM_SID *sid, uid_t *uid)
{
BOOL ret = False;
if (!impl) {
impl = get_impl(lp_winbind_backend());
if (!impl) {
DEBUG(0, ("winbindd_idmap_init: could not load backend '%s'\n",
lp_winbind_backend()));
}
}
if (impl) {
ret = impl->get_uid_from_sid(sid, uid);
}
return ret;
}
/* Get GID from SID */
BOOL winbindd_idmap_get_gid_from_sid(DOM_SID *sid, gid_t *gid)
{
BOOL ret = False;
if (!impl) {
impl = get_impl(lp_winbind_backend());
if (!impl) {
DEBUG(0, ("winbindd_idmap_init: could not load backend '%s'\n",
lp_winbind_backend()));
}
}
if (impl) {
ret = impl->get_gid_from_sid(sid, gid);
}
return ret;
}
/* Get SID from UID */
BOOL winbindd_idmap_get_sid_from_uid(uid_t uid, DOM_SID *sid)
{
BOOL ret = False;
if (!impl) {
impl = get_impl(lp_winbind_backend());
if (!impl) {
DEBUG(0, ("winbindd_idmap_init: could not load backend '%s'\n",
lp_winbind_backend()));
}
}
if (impl) {
ret = impl->get_sid_from_uid(uid, sid);
}
return ret;
}
/* Get SID from GID */
BOOL winbindd_idmap_get_sid_from_gid(gid_t gid, DOM_SID *sid)
{
BOOL ret = False;
if (!impl) {
impl = get_impl(lp_winbind_backend());
}
if (impl) {
ret = impl->get_sid_from_gid(gid, sid);
} else {
DEBUG(0, ("winbindd_idmap_init: could not load backend '%s'\n",
lp_winbind_backend()));
}
return ret;
}
/* Close backend */
BOOL winbindd_idmap_close(void)
{
BOOL ret = False;
if (!impl) {
impl = get_impl(lp_winbind_backend());
}
if (impl) {
ret = impl->close();
} else {
DEBUG(0, ("winbindd_idmap_init: could not load backend '%s'\n",
lp_winbind_backend()));
}
return ret;
}
/* Dump backend status */
void winbindd_idmap_status(void)
{
if (!impl) {
impl = get_impl(lp_winbind_backend());
}
if (impl) {
impl->status();
} else {
DEBUG(0, ("winbindd_idmap_init: could not load backend '%s'\n",
lp_winbind_backend()));
}
}
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