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/*
SSSD
sss_groupmod
Copyright (C) Jakub Hrozek <jhrozek@redhat.com> 2009
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 <stdio.h>
#include <stdlib.h>
#include <talloc.h>
#include <popt.h>
#include <errno.h>
#include <grp.h>
#include <unistd.h>
#include "util/util.h"
#include "db/sysdb.h"
#include "tools/tools_util.h"
#include "tools/sss_sync_ops.h"
int main(int argc, const char **argv)
{
gid_t pc_gid = 0;
int pc_debug = 0;
struct poptOption long_options[] = {
POPT_AUTOHELP
{ "debug", '\0', POPT_ARG_INT | POPT_ARGFLAG_DOC_HIDDEN, &pc_debug,
0, _("The debug level to run with"), NULL },
{ "append-group", 'a', POPT_ARG_STRING, NULL,
'a', _("Groups to add this group to"), NULL },
{ "remove-group", 'r', POPT_ARG_STRING, NULL,
'r', _("Groups to remove this group from"), NULL },
{ "gid", 'g', POPT_ARG_INT | POPT_ARGFLAG_DOC_HIDDEN, &pc_gid,
0, _("The GID of the group"), NULL },
POPT_TABLEEND
};
poptContext pc = NULL;
struct tools_ctx *tctx = NULL;
char *addgroups = NULL, *rmgroups = NULL;
int ret;
const char *pc_groupname = NULL;
char *badgroup = NULL;
debug_prg_name = argv[0];
ret = set_locale();
if (ret != EOK) {
DEBUG(1, ("set_locale failed (%d): %s\n", ret, strerror(ret)));
ERROR("Error setting the locale\n");
ret = EXIT_FAILURE;
goto fini;
}
/* parse parameters */
pc = poptGetContext(NULL, argc, argv, long_options, 0);
poptSetOtherOptionHelp(pc, "GROUPNAME");
while ((ret = poptGetNextOpt(pc)) > 0) {
switch (ret) {
case 'a':
addgroups = poptGetOptArg(pc);
if (addgroups == NULL) {
BAD_POPT_PARAMS(pc, _("Specify group to add to\n"),
ret, fini);
}
break;
case 'r':
rmgroups = poptGetOptArg(pc);
if (rmgroups == NULL) {
BAD_POPT_PARAMS(pc, _("Specify group to remove from\n"),
ret, fini);
}
break;
}
}
if (ret != -1) {
BAD_POPT_PARAMS(pc, poptStrerror(ret), ret, fini);
}
/* groupname is an argument without --option */
pc_groupname = poptGetArg(pc);
if (pc_groupname == NULL) {
BAD_POPT_PARAMS(pc, _("Specify group to modify\n"), ret, fini);
}
debug_level = pc_debug;
CHECK_ROOT(ret, debug_prg_name);
ret = init_sss_tools(&tctx);
if (ret != EOK) {
DEBUG(1, ("init_sss_tools failed (%d): %s\n", ret, strerror(ret)));
if (ret == ENOENT) {
ERROR("Error initializing the tools - no local domain\n");
} else {
ERROR("Error initializing the tools\n");
}
ret = EXIT_FAILURE;
goto fini;
}
ret = parse_name_domain(tctx, pc_groupname);
if (ret != EOK) {
ERROR("Invalid domain specified in FQDN\n");
ret = EXIT_FAILURE;
goto fini;
}
/* check the username to be able to give sensible error message */
ret = sysdb_getgrnam_sync(tctx, tctx->sysdb, tctx->octx->name, tctx->octx);
if (ret != EOK) {
ERROR("Cannot find group in local domain, "
"modifying groups is allowed only in local domain\n");
ret = EXIT_FAILURE;
goto fini;
}
tctx->octx->gid = pc_gid;
if (addgroups) {
ret = parse_groups(tctx, addgroups, &tctx->octx->addgroups);
if (ret != EOK) {
DEBUG(1, ("Cannot parse groups to add the group to\n"));
ERROR("Internal error while parsing parameters\n");
ret = EXIT_FAILURE;
goto fini;
}
ret = parse_group_name_domain(tctx, tctx->octx->addgroups);
if (ret != EOK) {
DEBUG(1, ("Cannot parse FQDN groups to add the group to\n"));
ERROR("Member groups must be in the same domain as parent group\n");
ret = EXIT_FAILURE;
goto fini;
}
/* Check group names in the LOCAL domain */
ret = check_group_names(tctx, tctx->octx->addgroups, &badgroup);
if (ret != EOK) {
ERROR("Cannot find group %s in local domain, "
"only groups in local domain are allowed\n", badgroup);
ret = EXIT_FAILURE;
goto fini;
}
}
if (rmgroups) {
ret = parse_groups(tctx, rmgroups, &tctx->octx->rmgroups);
if (ret != EOK) {
DEBUG(1, ("Cannot parse groups to remove the group from\n"));
ERROR("Internal error while parsing parameters\n");
ret = EXIT_FAILURE;
goto fini;
}
ret = parse_group_name_domain(tctx, tctx->octx->rmgroups);
if (ret != EOK) {
DEBUG(1, ("Cannot parse FQDN groups to remove the group from\n"));
ERROR("Member groups must be in the same domain as parent group\n");
ret = EXIT_FAILURE;
goto fini;
}
/* Check group names in the LOCAL domain */
ret = check_group_names(tctx, tctx->octx->rmgroups, &badgroup);
if (ret != EOK) {
ERROR("Cannot find group %s in local domain, "
"only groups in local domain are allowed\n", badgroup);
ret = EXIT_FAILURE;
goto fini;
}
}
if (id_in_range(tctx->octx->gid, tctx->octx->domain) != EOK) {
ERROR("The selected GID is outside the allowed range\n");
ret = EXIT_FAILURE;
goto fini;
}
tctx->error = sysdb_transaction_start(tctx->sysdb);
if (tctx->error != EOK) {
goto done;
}
/* groupmod */
tctx->error = groupmod(tctx, tctx->sysdb, tctx->octx);
if (tctx->error) {
/* cancel transaction */
sysdb_transaction_cancel(tctx->sysdb);
goto done;
}
tctx->error = sysdb_transaction_commit(tctx->sysdb);
done:
if (tctx->error) {
ret = tctx->error;
DEBUG(1, ("sysdb operation failed (%d)[%s]\n", ret, strerror(ret)));
switch (ret) {
case ENOENT:
ERROR("Could not modify group - check if member group names are correct\n");
break;
case EFAULT:
ERROR("Could not modify group - check if groupname is correct\n");
break;
default:
ERROR("Transaction error. Could not modify group.\n");
break;
}
ret = EXIT_FAILURE;
goto fini;
}
ret = EXIT_SUCCESS;
fini:
free(addgroups);
free(rmgroups);
poptFreeContext(pc);
talloc_free(tctx);
exit(ret);
}
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