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/*
* QEMU PAM authorization object tests
*
* Copyright (c) 2018 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*
*/
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "qemu/module.h"
#include "authz/pamacct.h"
#include <security/pam_appl.h>
static bool failauth;
/*
* These three functions are exported by libpam.so.
*
* By defining them again here, our impls are resolved
* by the linker instead of those in libpam.so
*
* The test suite is thus isolated from the host system
* PAM setup, so we can do predictable test scenarios
*/
int
pam_start(const char *service_name, const char *user,
const struct pam_conv *pam_conversation,
pam_handle_t **pamh)
{
failauth = true;
if (!g_str_equal(service_name, "qemu-vnc")) {
return PAM_AUTH_ERR;
}
if (g_str_equal(user, "fred")) {
failauth = false;
}
*pamh = (pam_handle_t *)0xbadeaffe;
return PAM_SUCCESS;
}
int
pam_acct_mgmt(pam_handle_t *pamh, int flags)
{
if (failauth) {
return PAM_AUTH_ERR;
}
return PAM_SUCCESS;
}
int
pam_end(pam_handle_t *pamh, int status)
{
return PAM_SUCCESS;
}
static void test_authz_unknown_service(void)
{
Error *local_err = NULL;
QAuthZPAM *auth = qauthz_pam_new("auth0",
"qemu-does-not-exist",
&error_abort);
g_assert_nonnull(auth);
g_assert_false(qauthz_is_allowed(QAUTHZ(auth), "fred", &local_err));
error_free_or_abort(&local_err);
object_unparent(OBJECT(auth));
}
static void test_authz_good_user(void)
{
QAuthZPAM *auth = qauthz_pam_new("auth0",
"qemu-vnc",
&error_abort);
g_assert_nonnull(auth);
g_assert_true(qauthz_is_allowed(QAUTHZ(auth), "fred", &error_abort));
object_unparent(OBJECT(auth));
}
static void test_authz_bad_user(void)
{
Error *local_err = NULL;
QAuthZPAM *auth = qauthz_pam_new("auth0",
"qemu-vnc",
&error_abort);
g_assert_nonnull(auth);
g_assert_false(qauthz_is_allowed(QAUTHZ(auth), "bob", &local_err));
error_free_or_abort(&local_err);
object_unparent(OBJECT(auth));
}
int main(int argc, char **argv)
{
g_test_init(&argc, &argv, NULL);
module_call_init(MODULE_INIT_QOM);
g_test_add_func("/auth/pam/unknown-service", test_authz_unknown_service);
g_test_add_func("/auth/pam/good-user", test_authz_good_user);
g_test_add_func("/auth/pam/bad-user", test_authz_bad_user);
return g_test_run();
}
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