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/*
Authors:
Jakub Hrozek <jhrozek@redhat.com>
Copyright (C) 2014 Red Hat
SSSD tests: User switching
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/>.
*/
/* Yes, a .c file. We need to call static functions during the test */
#include "../../../src/util/become_user.c"
#include <popt.h>
#include "util/util.h"
#include "tests/cmocka/common_mock.h"
void test_become_user_int(void **state)
{
struct passwd *sssd;
errno_t ret;
pid_t pid, wpid;
int status;
/* Must root as root, real or fake */
assert_int_equal(geteuid(), 0);
sssd = getpwnam("sssd");
assert_non_null(sssd);
pid = fork();
if (pid == 0) {
/* Change the UID in a child */
ret = become_user_int(sssd->pw_uid, sssd->pw_gid);
assert_int_equal(ret, EOK);
/* Make sure we have the requested UID and GID now and there
* are no supplementary groups
*/
assert_int_equal(geteuid(), sssd->pw_uid);
assert_int_equal(getegid(), sssd->pw_gid);
assert_int_equal(getuid(), sssd->pw_uid);
assert_int_equal(getgid(), sssd->pw_gid);
/* Another become_user is a no-op */
ret = become_user_int(sssd->pw_uid, sssd->pw_gid);
assert_int_equal(ret, EOK);
assert_int_equal(getgroups(0, NULL), 0);
exit(0);
}
assert_int_not_equal(pid, -1);
wpid = waitpid(pid, &status, 0);
assert_int_equal(wpid, pid);
assert_true(WIFEXITED(status));
assert_int_equal(WEXITSTATUS(status), 0);
}
void test_switch_user(void **state)
{
errno_t ret;
struct passwd *sssd;
TALLOC_CTX *tmp_ctx;
struct sss_creds *saved_creds;
check_leaks_push(global_talloc_context);
tmp_ctx = talloc_new(global_talloc_context);
assert_non_null(tmp_ctx);
/* Must root as root, real or fake */
assert_int_equal(geteuid(), 0);
sssd = getpwnam("sssd");
assert_non_null(sssd);
check_leaks_push(tmp_ctx);
ret = switch_creds(tmp_ctx, sssd->pw_uid, sssd->pw_gid,
0, NULL, &saved_creds);
assert_int_equal(ret, EOK);
assert_int_equal(geteuid(), sssd->pw_uid);
assert_int_equal(getegid(), sssd->pw_gid);
/* Only effective UID is changed.. */
assert_int_equal(getuid(), 0);
assert_int_equal(getgid(), 0);
assert_non_null(saved_creds);
assert_int_equal(saved_creds->uid, 0);
assert_int_equal(saved_creds->gid, 0);
/* restore root */
ret = restore_creds(saved_creds);
assert_int_equal(ret, EOK);
assert_int_equal(geteuid(), 0);
assert_int_equal(getegid(), 0);
assert_int_equal(getuid(), 0);
assert_int_equal(getgid(), 0);
talloc_free(saved_creds);
check_leaks_pop(tmp_ctx);
talloc_free(tmp_ctx);
check_leaks_pop(global_talloc_context);
}
int main(int argc, const char *argv[])
{
poptContext pc;
int opt;
struct poptOption long_options[] = {
POPT_AUTOHELP
SSSD_DEBUG_OPTS
POPT_TABLEEND
};
const UnitTest tests[] = {
unit_test(test_become_user_int),
unit_test(test_switch_user),
};
/* Set debug level to invalid value so we can deside if -d 0 was used. */
debug_level = SSSDBG_INVALID;
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);
return 1;
}
}
poptFreeContext(pc);
DEBUG_CLI_INIT(debug_level);
/* Even though normally the tests should clean up after themselves
* they might not after a failed run. Remove the old db to be sure */
tests_set_cwd();
return run_tests(tests);
}
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