int confdb_init_db(const char *config_file, struct confdb_ctx *cdb)
{
TALLOC_CTX *tmp_ctx;
int ret;
int sret = EOK;
int version;
char timestr[21];
char *lasttimestr;
bool in_transaction = false;
const char *config_ldif;
const char *vals[2] = { timestr, NULL };
struct ldb_ldif *ldif;
struct sss_ini_initdata *init_data;
tmp_ctx = talloc_new(cdb);
if (tmp_ctx == NULL) {
DEBUG(SSSDBG_FATAL_FAILURE, "Out of memory.\n");
return ENOMEM;
}
init_data = sss_ini_initdata_init(tmp_ctx);
if (!init_data) {
DEBUG(SSSDBG_FATAL_FAILURE, "Out of memory.\n");
ret = ENOMEM;
goto done;
}
/* Open config file */
ret = sss_ini_config_file_open(init_data, config_file);
if (ret != EOK) {
DEBUG(SSSDBG_TRACE_FUNC,
"sss_ini_config_file_open failed: %s [%d]\n", strerror(ret),
ret);
if (ret == ENOENT) {
/* sss specific error denoting missing configuration file */
ret = ERR_MISSING_CONF;
}
goto done;
}
ret = sss_ini_config_access_check(init_data);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE,
"Permission check on config file failed.\n");
ret = EPERM;
goto done;
}
/* Determine if the conf file has changed since we last updated
* the confdb
*/
ret = sss_ini_get_stat(init_data);
if (ret != EOK) {
DEBUG(SSSDBG_FATAL_FAILURE,
"Status check on config file failed.\n");
ret = errno;
goto done;
}
errno = 0;
ret = sss_ini_get_mtime(init_data, sizeof(timestr), timestr);
if (ret <= 0 || ret >= sizeof(timestr)) {
DEBUG(SSSDBG_FATAL_FAILURE,
"Failed to convert time_t to string ??\n");
ret = errno ? errno : EFAULT;
}
ret = confdb_get_string(cdb, tmp_ctx, "config", "lastUpdate",
NULL, &lasttimestr);
if (ret == EOK) {
/* check if we lastUpdate and last file modification change differ*/
if ((lasttimestr != NULL) && (strcmp(lasttimestr, timestr) == 0)) {
/* not changed, get out, nothing more to do */
ret = EOK;
goto done;
}
} else {
DEBUG(SSSDBG_FATAL_FAILURE, "Failed to get lastUpdate attribute.\n");
goto done;
}
ret = sss_ini_get_config(init_data, config_file);
if (ret != EOK) {
DEBUG(SSSDBG_FATAL_FAILURE, "Failed to load configuration\n");
goto done;
}
/* Make sure that the config file version matches the confdb version */
ret = sss_ini_get_cfgobj(init_data, "sssd", "config_file_version");
if (ret != EOK) {
DEBUG(SSSDBG_FATAL_FAILURE,
"Internal error determining config_file_version\n");
goto done;
}
ret = sss_ini_check_config_obj(init_data);
if (ret != EOK) {
/* No known version. Assumed to be version 1 */
DEBUG(SSSDBG_FATAL_FAILURE,
"Config file is an old version. "
"Please run configuration upgrade script.\n");
ret = EINVAL;
goto done;
}
version = sss_ini_get_int_config_value(init_data, 1, -1, &ret);
if (ret != EOK) {
DEBUG(SSSDBG_FATAL_FAILURE,
"Config file version could not be determined\n");
goto done;
} else if (version < CONFDB_VERSION_INT) {
DEBUG(SSSDBG_FATAL_FAILURE,
"Config file is an old version. "
"Please run configuration upgrade script.\n");
ret = EINVAL;
goto done;
} else if (version > CONFDB_VERSION_INT) {
DEBUG(SSSDBG_FATAL_FAILURE,
"Config file version is newer than confdb\n");
ret = EINVAL;
goto done;
}
/* Set up a transaction to replace the configuration */
ret = ldb_transaction_start(cdb->ldb);
if (ret != LDB_SUCCESS) {
DEBUG(SSSDBG_FATAL_FAILURE,
"Failed to start a transaction for "
"updating the configuration\n");
ret = sysdb_error_to_errno(ret);
goto done;
}
in_transaction = true;
/* Purge existing database */
ret = confdb_purge(cdb);
if (ret != EOK) {
DEBUG(SSSDBG_FATAL_FAILURE,
"Could not purge existing configuration\n");
goto done;
}
ret = sss_confdb_create_ldif(tmp_ctx, init_data, &config_ldif);
if (ret != EOK) {
DEBUG(SSSDBG_FATAL_FAILURE, "Could not create LDIF for confdb\n");
goto done;
}
DEBUG(SSSDBG_TRACE_LIBS, "LDIF file to import: \n%s", config_ldif);
while ((ldif = ldb_ldif_read_string(cdb->ldb, &config_ldif))) {
ret = ldb_add(cdb->ldb, ldif->msg);
if (ret != LDB_SUCCESS) {
DEBUG(SSSDBG_FATAL_FAILURE,
"Failed to initialize DB (%d,[%s]), aborting!\n",
ret, ldb_errstring(cdb->ldb));
ret = EIO;
goto done;
}
ldb_ldif_read_free(cdb->ldb, ldif);
}
/* now store the lastUpdate time so that we do not re-init if nothing
* changed on restart */
ret = confdb_add_param(cdb, true, "config", "lastUpdate", vals);
if (ret != EOK) {
DEBUG(SSSDBG_FATAL_FAILURE,
"Failed to set last update time on db!\n");
goto done;
}
ret = ldb_transaction_commit(cdb->ldb);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE, "Failed to commit transaction\n");
goto done;
}
in_transaction = false;
ret = EOK;
done:
if (in_transaction) {
sret = ldb_transaction_cancel(cdb->ldb);
if (sret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE, "Failed to cancel transaction\n");
}
}
sss_ini_config_destroy(init_data);
sss_ini_close_file(init_data);
talloc_zfree(tmp_ctx);
return ret;
}
static int confdb_init_db(const char *config_file,
const char *config_dir,
const char *only_section,
struct confdb_ctx *cdb)
{
TALLOC_CTX *tmp_ctx;
int ret;
int sret = EOK;
bool in_transaction = false;
const char *timestr = NULL;
const char *config_ldif;
const char *vals[2] = { NULL, NULL };
struct sss_ini_initdata *init_data;
tmp_ctx = talloc_new(cdb);
if (tmp_ctx == NULL) {
DEBUG(SSSDBG_FATAL_FAILURE, "Out of memory.\n");
return ENOMEM;
}
init_data = sss_ini_initdata_init(tmp_ctx);
if (!init_data) {
DEBUG(SSSDBG_FATAL_FAILURE, "Out of memory.\n");
ret = ENOMEM;
goto done;
}
/* Open config file */
ret = sss_ini_config_file_open(init_data, config_file);
if (ret == EOK) {
ret = confdb_ldif_from_ini_file(tmp_ctx,
config_file,
config_dir,
only_section,
init_data,
×tr,
&config_ldif);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE,
"Cannot convert INI to LDIF [%d]: [%s]\n",
ret, sss_strerror(ret));
goto done;
}
} else if (ret == ENOENT) {
ret = confdb_fallback_ldif(tmp_ctx, ×tr, &config_ldif);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE,
"Cannot create a fallback configuration [%d]: [%s]\n",
ret, sss_strerror(ret));
goto done;
}
} else {
DEBUG(SSSDBG_CONF_SETTINGS,
"sss_ini_config_file_open failed: %s [%d]\n", sss_strerror(ret),
ret);
goto done;
}
DEBUG(SSSDBG_CONF_SETTINGS, "LDIF file to import: \n%s\n", config_ldif);
/* Set up a transaction to replace the configuration */
ret = ldb_transaction_start(cdb->ldb);
if (ret != LDB_SUCCESS) {
DEBUG(SSSDBG_FATAL_FAILURE,
"Failed to start a transaction for "
"updating the configuration\n");
ret = sss_ldb_error_to_errno(ret);
goto done;
}
in_transaction = true;
/* Purge existing database, if we are reinitializing the confdb completely */
if (only_section == NULL) {
ret = confdb_purge(cdb);
if (ret != EOK) {
DEBUG(SSSDBG_FATAL_FAILURE,
"Could not purge existing configuration\n");
goto done;
}
}
ret = confdb_write_ldif(cdb,
config_ldif,
only_section == NULL ? true : false);
if (ret != EOK) {
goto done;
}
/* now store the lastUpdate time so that we do not re-init if nothing
* changed on restart */
vals[0] = timestr;
ret = confdb_add_param(cdb, true, "config", "lastUpdate", vals);
if (ret != EOK) {
DEBUG(SSSDBG_FATAL_FAILURE,
"Failed to set last update time on db!\n");
goto done;
}
ret = ldb_transaction_commit(cdb->ldb);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE, "Failed to commit transaction\n");
goto done;
}
in_transaction = false;
ret = EOK;
done:
if (in_transaction) {
sret = ldb_transaction_cancel(cdb->ldb);
if (sret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE, "Failed to cancel transaction\n");
}
}
sss_ini_config_destroy(init_data);
sss_ini_close_file(init_data);
talloc_zfree(tmp_ctx);
return ret;
}
