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/*
Authors:
Fabiano Fidêncio <fidencio@redhat.com>
Copyright (C) 2017 Red Hat
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 "config.h"
#include <popt.h>
#include <stdio.h>
#include <ini_configobj.h>
#include "util/util.h"
#include "confdb/confdb.h"
static errno_t check_socket_activated_responder(const char *responder)
{
errno_t ret;
struct ini_cfgfile *file_ctx = NULL;
struct ini_cfgobj *ini_config = NULL;
struct ini_cfgobj *modified_ini_config = NULL;
struct value_obj *vobj = NULL;
struct access_check snip_check;
const char *services;
const char *patterns[] = { "^[^\\.].*\\.conf$", NULL };
const char *sections[] = { "sssd", NULL };
const char *str;
TALLOC_CTX *tmp_ctx;
tmp_ctx = talloc_new(NULL);
if (tmp_ctx == NULL) {
return ENOMEM;
}
ret = ini_config_create(&ini_config);
if (ret != 0) {
DEBUG(SSSDBG_CRIT_FAILURE, "ini_config_create() failed [%d][%s]\n",
ret, sss_strerror(ret));
goto done;
}
ret = ini_config_file_open(SSSD_CONFIG_FILE, 0, &file_ctx);
if (ret != 0) {
DEBUG(SSSDBG_CRIT_FAILURE, "ini_config_file_open() failed [%d][%s]\n",
ret, sss_strerror(ret));
goto done;
}
/* Using the same flags used by sss_ini_get_config(), which is used to
* load the config file ... */
ret = ini_config_parse(file_ctx,
INI_STOP_ON_ANY,
INI_MV1S_OVERWRITE,
INI_PARSE_NOWRAP,
ini_config);
if (ret != 0) {
DEBUG(SSSDBG_CRIT_FAILURE, "ini_config_parse() failed [%d][%s]\n",
ret, sss_strerror(ret));
goto done;
}
/* And also check the snippets ... */
snip_check.flags = INI_ACCESS_CHECK_MODE |
INI_ACCESS_CHECK_UID |
INI_ACCESS_CHECK_GID;
snip_check.uid = 0; /* owned by root */
snip_check.gid = 0; /* owned by root */
snip_check.mode = S_IRUSR; /* r**------ */
snip_check.mask = ALLPERMS & ~(S_IWUSR | S_IXUSR);
ret = ini_config_augment(ini_config,
CONFDB_DEFAULT_CONFIG_DIR,
patterns,
sections,
&snip_check,
INI_STOP_ON_ANY,
INI_MV1S_OVERWRITE,
INI_PARSE_NOWRAP,
INI_MV2S_OVERWRITE,
&modified_ini_config,
NULL,
NULL);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE, "ini_config_augment failed [%d][%s]\n",
ret, sss_strerror(ret));
goto done;
}
if (modified_ini_config != NULL) {
ini_config_destroy(ini_config);
ini_config = modified_ini_config;
}
ret = ini_get_config_valueobj("sssd", "services", ini_config,
INI_GET_FIRST_VALUE, &vobj);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE,
"ini_get_config_valueobj() failed [%d][%s]\n",
ret, sss_strerror(ret));
goto done;
}
/* In case there's no services' line at all, just return EOK. */
if (vobj == NULL) {
ret = EOK;
goto done;
}
services = ini_get_string_config_value(vobj, &ret);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE,
"ini_get_string_config_value() failed [%d][%s]\n",
ret, sss_strerror(ret));
goto done;
}
str = strstr(services, responder);
if (str != NULL) {
ret = EEXIST;
goto done;
}
ret = EOK;
done:
ini_config_file_destroy(file_ctx);
ini_config_destroy(ini_config);
talloc_free(tmp_ctx);
return ret;
}
int main(int argc, const char *argv[])
{
int ret;
int opt;
poptContext pc;
char *responder = NULL;
struct poptOption long_options[] = {
POPT_AUTOHELP
{"responders", 'r', POPT_ARG_STRING, &responder, 0,
_("The name of the responder to be checked"), NULL},
POPT_TABLEEND
};
pc = poptGetContext(argv[0], argc, argv, long_options, 0);
while ((opt = poptGetNextOpt(pc)) != -1) {
switch (opt) {
default:
fprintf(stderr, "\nInvalid option %s: %s\n\n",
poptBadOption(pc, 0), poptStrerror(opt));
poptPrintUsage(pc, stderr, 0);
ret = 1;
goto done;
}
}
if (responder == NULL) {
poptPrintUsage(pc, stderr, 0);
ret = 1;
goto done;
}
ret = check_socket_activated_responder(responder);
if (ret != EOK) {
DEBUG(SSSDBG_DEFAULT,
"Misconfiguration found for the %s responder.\n"
"The %s responder has been configured to be socket-activated "
"but it's still mentioned in the services' line in %s.\n"
"Please, consider either adjusting your services' line in %s "
"or disabling the %s's socket by calling:\n"
"\"systemctl disable sssd-%s.socket\"",
responder, responder, SSSD_CONFIG_FILE, SSSD_CONFIG_FILE,
responder, responder);
goto done;
}
ret = EOK;
done:
poptFreeContext(pc);
return ret;
}
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