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/*
* Copyright 2013-2017 Red Hat, Inc.
*
* 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; version 2 of the License.
*
* 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.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <sys/types.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <errno.h>
#include <pwd.h>
#include <grp.h>
#include "back-sch-nss.h"
/* SSSD only exposes *_timeout() variants if the following symbol is defined */
#define IPA_389DS_PLUGIN_HELPER_CALLS
#include <sss_nss_idmap.h>
struct nss_ops_ctx {
unsigned int timeout;
};
static enum nss_status __convert_sss_nss2nss_status(int errcode) {
enum nss_status ret = NSS_STATUS_UNAVAIL;
if (errcode == 0) {
ret = NSS_STATUS_SUCCESS;
} else if (errcode == ENOENT) {
ret = NSS_STATUS_NOTFOUND;
} else if(errcode == ERANGE) {
ret = NSS_STATUS_TRYAGAIN;
} else if(errcode == ETIMEDOUT) {
ret = NSS_STATUS_UNAVAIL;
} else if(errcode == ETIME) {
ret = NSS_STATUS_TRYAGAIN;
};
return ret;
}
void backend_nss_init_context(struct nss_ops_ctx **nss_context)
{
struct nss_ops_ctx *ctx = NULL;
if (nss_context == NULL) {
return;
}
ctx = calloc(1, sizeof(struct nss_ops_ctx));
*nss_context = ctx;
}
void backend_nss_free_context(struct nss_ops_ctx **nss_context)
{
if (nss_context == NULL) {
return;
}
free((*nss_context));
*nss_context = NULL;
}
void backend_nss_set_timeout(struct nss_ops_ctx *nss_context,
unsigned int timeout) {
if (nss_context == NULL) {
return;
}
nss_context->timeout = timeout;
}
/* TODO: handle buffers and memory allocation in this function */
void backend_nss_evict_user(struct nss_ops_ctx *nss_context,
const char *name) {
if (nss_context == NULL) {
return;
}
(void) sss_nss_getpwnam_timeout(name, NULL,
NULL, 0,
NULL,
SSS_NSS_EX_FLAG_INVALIDATE_CACHE,
nss_context->timeout);
}
/* TODO: handle buffers and memory allocation in this function */
void backend_nss_evict_group(struct nss_ops_ctx *nss_context,
const char *name) {
if (nss_context == NULL) {
return;
}
(void) sss_nss_getgrnam_timeout(name, NULL,
NULL, 0,
NULL,
SSS_NSS_EX_FLAG_INVALIDATE_CACHE,
nss_context->timeout);
}
enum nss_status backend_nss_getpwnam(struct nss_ops_ctx *nss_context,
const char *name, struct passwd *pwd,
char *buffer, size_t buflen,
struct passwd **result,
int *lerrno) {
int ret = 0;
if (nss_context == NULL) {
return NSS_STATUS_UNAVAIL;
}
ret = sss_nss_getpwnam_timeout(name, pwd,
buffer, buflen,
result,
SSS_NSS_EX_FLAG_NO_FLAGS,
nss_context->timeout);
if (ret != 0 && lerrno != NULL) {
/* SSSD translates errno into return code */
*lerrno = ret;
}
return __convert_sss_nss2nss_status(ret);
}
enum nss_status backend_nss_getpwuid(struct nss_ops_ctx *nss_context,
uid_t uid, struct passwd *pwd,
char *buffer, size_t buflen,
struct passwd **result,
int *lerrno) {
int ret = 0;
if (nss_context == NULL) {
return NSS_STATUS_UNAVAIL;
}
ret = sss_nss_getpwuid_timeout(uid, pwd,
buffer, buflen,
result,
SSS_NSS_EX_FLAG_NO_FLAGS,
nss_context->timeout);
if (ret != 0 && lerrno != NULL) {
/* SSSD translates errno into return code */
*lerrno = ret;
}
return __convert_sss_nss2nss_status(ret);
}
enum nss_status backend_nss_getgrnam(struct nss_ops_ctx *nss_context,
const char *name, struct group *grp,
char *buffer, size_t buflen,
struct group **result,
int *lerrno) {
int ret = 0;
if (nss_context == NULL) {
return NSS_STATUS_UNAVAIL;
}
ret = sss_nss_getgrnam_timeout(name, grp,
buffer, buflen,
result,
SSS_NSS_EX_FLAG_NO_FLAGS,
nss_context->timeout);
if (ret != 0 && lerrno != NULL) {
/* SSSD translates errno into return code */
*lerrno = ret;
}
return __convert_sss_nss2nss_status(ret);
}
enum nss_status backend_nss_getgrgid(struct nss_ops_ctx *nss_context,
gid_t gid, struct group *grp,
char *buffer, size_t buflen,
struct group **result,
int *lerrno) {
int ret = 0;
if (nss_context == NULL) {
return NSS_STATUS_UNAVAIL;
}
ret = sss_nss_getgrgid_timeout(gid, grp,
buffer, buflen,
result,
SSS_NSS_EX_FLAG_NO_FLAGS,
nss_context->timeout);
if (ret != 0 && lerrno != NULL) {
/* SSSD translates errno into return code */
*lerrno = ret;
}
return __convert_sss_nss2nss_status(ret);
}
enum nss_status backend_nss_getgrouplist(struct nss_ops_ctx *nss_context,
const char *name, gid_t group,
gid_t *groups, int *ngroups,
int *lerrno) {
int ret = 0;
if (nss_context == NULL) {
return NSS_STATUS_UNAVAIL;
}
ret = sss_nss_getgrouplist_timeout(name, group,
groups, ngroups,
SSS_NSS_EX_FLAG_NO_FLAGS,
nss_context->timeout);
if (ret != 0 && lerrno != NULL) {
/* SSSD translates errno into return code */
*lerrno = ret;
}
return __convert_sss_nss2nss_status(ret);
}
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