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/*
SSSD
NSS Responder
Copyright (C) Petr Čech <pcech@redhat.com> 2016
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 "util/util.h"
#include "util/nss_dl_load.h"
#include "responder/common/negcache_files.h"
#define BUFFER_SIZE 16384
static char s_nss_buffer[BUFFER_SIZE];
bool is_user_local_by_name(const struct sss_nss_ops *ops, const char *name)
{
struct passwd pwd = { 0 };
int errnop;
enum nss_status ret;
char *shortname = NULL;
int parse_ret;
parse_ret = sss_parse_internal_fqname(NULL, name, &shortname, NULL);
if (parse_ret != EOK) {
return false;
}
ret = ops->getpwnam_r(shortname, &pwd, s_nss_buffer, BUFFER_SIZE, &errnop);
talloc_free(shortname);
if (ret == NSS_STATUS_SUCCESS) {
DEBUG(SSSDBG_TRACE_FUNC, "User %s is a local user\n", name);
return true;
}
return false;
}
bool is_user_local_by_uid(const struct sss_nss_ops *ops, uid_t uid)
{
struct passwd pwd = { 0 };
int errnop;
enum nss_status ret;
ret = ops->getpwuid_r(uid, &pwd, s_nss_buffer, BUFFER_SIZE, &errnop);
if (ret == NSS_STATUS_SUCCESS) {
DEBUG(SSSDBG_TRACE_FUNC,
"User with UID %"SPRIuid" is a local user\n", uid);
return true;
}
return false;
}
bool is_group_local_by_name(const struct sss_nss_ops *ops, const char *name)
{
struct group grp = { 0 };
int errnop;
enum nss_status ret;
char *shortname = NULL;
int parse_ret;
parse_ret = sss_parse_internal_fqname(NULL, name, &shortname, NULL);
if (parse_ret != EOK) {
return false;
}
ret = ops->getgrnam_r(shortname, &grp, s_nss_buffer, BUFFER_SIZE, &errnop);
talloc_free(shortname);
if (ret == NSS_STATUS_SUCCESS) {
DEBUG(SSSDBG_TRACE_FUNC, "Group %s is a local group\n", name);
return true;
}
return false;
}
bool is_group_local_by_gid(const struct sss_nss_ops *ops, uid_t gid)
{
struct group grp = { 0 };
int errnop;
enum nss_status ret;
ret = ops->getgrgid_r(gid, &grp, s_nss_buffer, BUFFER_SIZE, &errnop);
if (ret == NSS_STATUS_SUCCESS) {
DEBUG(SSSDBG_TRACE_FUNC,
"Group with GID %"SPRIgid" is a local group\n", gid);
return true;
}
return false;
}
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