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/*
Unix SMB/CIFS implementation.
Winbind client API - SSSD version
Copyright (C) Sumit Bose <sbose@redhat.com> 2014
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
Library General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/* Required Headers */
#include <sss_nss_idmap.h>
#include "replace.h"
#include "libwbclient.h"
#include "../winbind_client.h"
#include "wbc_sssd_internal.h"
/* Convert a Windows SID to a Unix uid, allocating an uid if needed */
wbcErr wbcSidToUid(const struct wbcDomainSid *sid, uid_t *puid)
{
int ret;
char *sid_str;
uint32_t id;
enum sss_id_type type;
wbcErr wbc_status;
wbc_status = wbcSidToString(sid, &sid_str);
if (!WBC_ERROR_IS_OK(wbc_status)) {
return wbc_status;
}
ret = sss_nss_getidbysid(sid_str, &id, &type);
wbcFreeMemory(sid_str);
if (ret != 0) {
return WBC_ERR_UNKNOWN_FAILURE;
}
if (type != SSS_ID_TYPE_UID && type != SSS_ID_TYPE_BOTH) {
return WBC_ERR_UNKNOWN_GROUP;
}
*puid = (uid_t) id;
return WBC_ERR_SUCCESS;
}
/* Convert a Unix uid to a Windows SID, allocating a SID if needed */
wbcErr wbcUidToSid(uid_t uid, struct wbcDomainSid *sid)
{
int ret;
char *str_sid;
enum sss_id_type type;
wbcErr wbc_status;
ret = sss_nss_getsidbyid(uid, &str_sid, &type);
if (ret != 0) {
return WBC_ERR_UNKNOWN_FAILURE;
}
if (type != SSS_ID_TYPE_UID && type != SSS_ID_TYPE_BOTH) {
free(str_sid);
return WBC_ERR_UNKNOWN_USER;
}
wbc_status = wbcStringToSid(str_sid, sid);
free(str_sid);
if (!WBC_ERROR_IS_OK(wbc_status)) {
return wbc_status;
}
return WBC_ERR_SUCCESS;
}
/** @brief Convert a Windows SID to a Unix gid, allocating a gid if needed
*
* @param *sid Pointer to the domain SID to be resolved
* @param *pgid Pointer to the resolved gid_t value
*
* @return #wbcErr
*
**/
wbcErr wbcSidToGid(const struct wbcDomainSid *sid, gid_t *pgid)
{
int ret;
char *sid_str;
uint32_t id;
enum sss_id_type type;
wbcErr wbc_status;
wbc_status = wbcSidToString(sid, &sid_str);
if (!WBC_ERROR_IS_OK(wbc_status)) {
return wbc_status;
}
ret = sss_nss_getidbysid(sid_str, &id, &type);
wbcFreeMemory(sid_str);
if (ret != 0) {
return WBC_ERR_UNKNOWN_FAILURE;
}
if (type != SSS_ID_TYPE_GID && type != SSS_ID_TYPE_BOTH) {
return WBC_ERR_UNKNOWN_GROUP;
}
*pgid = (gid_t) id;
return WBC_ERR_SUCCESS;
}
/* Convert a Unix gid to a Windows SID, allocating a SID if needed */
wbcErr wbcGidToSid(gid_t gid, struct wbcDomainSid *sid)
{
int ret;
char *str_sid;
enum sss_id_type type;
wbcErr wbc_status;
ret = sss_nss_getsidbyid(gid, &str_sid, &type);
if (ret != 0) {
return WBC_ERR_UNKNOWN_FAILURE;
}
if (type != SSS_ID_TYPE_GID && type != SSS_ID_TYPE_BOTH) {
free(str_sid);
return WBC_ERR_UNKNOWN_USER;
}
wbc_status = wbcStringToSid(str_sid, sid);
free(str_sid);
if (!WBC_ERROR_IS_OK(wbc_status)) {
return wbc_status;
}
return WBC_ERR_SUCCESS;
}
/* Obtain a new uid from Winbind */
wbcErr wbcAllocateUid(uid_t *puid)
{
/* Not supported by SSSD */
WBC_SSSD_NOT_IMPLEMENTED;
}
/* Obtain a new gid from Winbind */
wbcErr wbcAllocateGid(gid_t *pgid)
{
/* Not supported by SSSD */
WBC_SSSD_NOT_IMPLEMENTED;
}
/* Convert a list of SIDs */
wbcErr wbcSidsToUnixIds(const struct wbcDomainSid *sids, uint32_t num_sids,
struct wbcUnixId *ids)
{
int ret;
char *sid_str;
uint32_t id;
enum sss_id_type type;
size_t c;
wbcErr wbc_status;
for (c = 0; c < num_sids; c++) {
wbc_status = wbcSidToString(&sids[c], &sid_str);
if (!WBC_ERROR_IS_OK(wbc_status)) {
return wbc_status;
}
ret = sss_nss_getidbysid(sid_str, &id, &type);
wbcFreeMemory(sid_str);
if (ret != 0) {
return WBC_ERR_UNKNOWN_FAILURE;
}
switch (type) {
case SSS_ID_TYPE_UID:
ids[c].type = WBC_ID_TYPE_UID;
ids[c].id.uid = (uid_t) id;
break;
case SSS_ID_TYPE_GID:
ids[c].type = WBC_ID_TYPE_GID;
ids[c].id.gid = (gid_t) id;
break;
case SSS_ID_TYPE_BOTH:
ids[c].type = WBC_ID_TYPE_BOTH;
ids[c].id.uid = (uid_t) id;
break;
default:
ids[c].type = WBC_ID_TYPE_NOT_SPECIFIED;
}
}
return WBC_ERR_SUCCESS;
}
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