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/*
SSSD
sss_usermod
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 <pwd.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)
{
int pc_lock = 0;
uid_t pc_uid = 0;
gid_t pc_gid = 0;
char *pc_gecos = NULL;
char *pc_home = NULL;
char *pc_shell = NULL;
int pc_debug = 0;
const char *pc_selinux_user = NULL;
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 },
{ "uid", 'u', POPT_ARG_INT | POPT_ARGFLAG_DOC_HIDDEN, &pc_uid, 0, _("The UID of the user"), NULL },
{ "gid", 'g', POPT_ARG_INT | POPT_ARGFLAG_DOC_HIDDEN, &pc_gid, 0, _("The GID of the user"), NULL },
{ "gecos", 'c', POPT_ARG_STRING, &pc_gecos, 0, _("The comment string"), NULL },
{ "home", 'h', POPT_ARG_STRING, &pc_home, 0, _("Home directory"), NULL },
{ "shell", 's', POPT_ARG_STRING, &pc_shell, 0, _("Login shell"), NULL },
{ "append-group", 'a', POPT_ARG_STRING, NULL, 'a', _("Groups to add this user to"), NULL },
{ "remove-group", 'r', POPT_ARG_STRING, NULL, 'r', _("Groups to remove this user from"), NULL },
{ "lock", 'L', POPT_ARG_NONE, NULL, 'L', _("Lock the account"), NULL },
{ "unlock", 'U', POPT_ARG_NONE, NULL, 'U', _("Unlock the account"), NULL },
{ "selinux-user", 'Z', POPT_ARG_STRING, &pc_selinux_user, 0, _("The SELinux user for user's login"), NULL },
POPT_TABLEEND
};
poptContext pc = NULL;
char *addgroups = NULL, *rmgroups = NULL;
int ret;
const char *pc_username = NULL;
struct tools_ctx *tctx = 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, "USERNAME");
while ((ret = poptGetNextOpt(pc)) > 0) {
switch (ret) {
case 'a':
addgroups = poptGetOptArg(pc);
if (addgroups == NULL) {
ret = -1;
}
break;
case 'r':
rmgroups = poptGetOptArg(pc);
if (rmgroups == NULL) {
ret = -1;
}
break;
case 'L':
pc_lock = DO_LOCK;
break;
case 'U':
pc_lock = DO_UNLOCK;
break;
}
}
if (ret != -1) {
usage(pc, poptStrerror(ret));
ret = EXIT_FAILURE;
goto fini;
}
debug_level = pc_debug;
/* username is an argument without --option */
pc_username = poptGetArg(pc);
if (pc_username == NULL) {
usage(pc, _("Specify user to modify\n"));
ret = EXIT_FAILURE;
goto fini;
}
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;
}
/* if the domain was not given as part of FQDN, default to local domain */
ret = parse_name_domain(tctx, pc_username);
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_getpwnam_sync(tctx, tctx->ev, tctx->sysdb,
tctx->octx->name, tctx->local,
&tctx->octx);
if (ret != EOK) {
ERROR("Cannot find user in local domain, "
"modifying users is allowed only in local domain\n");
ret = EXIT_FAILURE;
goto fini;
}
if (id_in_range(tctx->octx->uid, tctx->octx->domain) != EOK) {
ERROR("The selected UID is outside the allowed range\n");
ret = EXIT_FAILURE;
goto fini;
}
if (addgroups) {
ret = parse_groups(tctx, addgroups, &tctx->octx->addgroups);
if (ret != EOK) {
DEBUG(1, ("Cannot parse groups to add the user 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 user to\n"));
ERROR("Groups must be in the same domain as user\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 user 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 user from\n"));
ERROR("Groups must be in the same domain as user\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;
}
}
tctx->octx->gecos = pc_gecos;
tctx->octx->home = pc_home;
tctx->octx->shell = pc_shell;
tctx->octx->uid = pc_uid;
tctx->octx->gid = pc_gid;
tctx->octx->lock = pc_lock;
tctx->error = sysdb_transaction_start(tctx->sysdb);
if (tctx->error != EOK) {
goto done;
}
/* usermod */
tctx->error = usermod(tctx, tctx->sysdb, tctx->octx);
if (tctx->error) {
/* cancel transaction */
sysdb_transaction_cancel(tctx->sysdb);
goto done;
}
tctx->error = sysdb_transaction_commit(tctx->sysdb);
/* Set SELinux login context - must be done after transaction is done
* b/c libselinux calls getpwnam */
ret = set_seuser(tctx->octx->name, pc_selinux_user);
if (ret != EOK) {
ERROR("Cannot set SELinux login context\n");
ret = EXIT_FAILURE;
goto fini;
}
done:
if (tctx->error) {
ret = tctx->error;
switch (ret) {
case ENOENT:
ERROR("Could not modify user - check if group names are correct\n");
break;
case EFAULT:
ERROR("Could not modify user - user already member of groups?\n");
break;
default:
ERROR("Transaction error. Could not modify user.\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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