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/*
* Check pam_sepermit return values and conf= option.
*
* Copyright (c) 2020-2022 Dmitry V. Levin <ldv@altlinux.org>
*/
#include "test_assert.h"
#include "pam_inline.h"
#include <limits.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <security/pam_appl.h>
#define MODULE_NAME "pam_sepermit"
#define TEST_NAME "tst-" MODULE_NAME "-retval"
static const char service_file[] = TEST_NAME ".service";
static const char missing_file[] = TEST_NAME ".missing";
static const char config_file[] = TEST_NAME ".conf";
static struct pam_conv conv;
int
main(void)
{
pam_handle_t *pamh = NULL;
FILE *fp;
char *cwd;
cwd = xgetcwd();
ASSERT_NE(NULL, cwd);
/* PAM_USER_UNKNOWN */
ASSERT_NE(NULL, fp = fopen(service_file, "w"));
ASSERT_LT(0,
fprintf(fp, "#%%PAM-1.0\n"
"auth required %s/" LTDIR "%s.so\n"
"account required %s/" LTDIR "%s.so\n"
"password required %s/" LTDIR "%s.so\n"
"session required %s/" LTDIR "%s.so\n",
cwd, MODULE_NAME,
cwd, MODULE_NAME,
cwd, MODULE_NAME,
cwd, MODULE_NAME));
ASSERT_EQ(0, fclose(fp));
ASSERT_EQ(PAM_SUCCESS,
pam_start_confdir(service_file, "", &conv, ".", &pamh));
ASSERT_NE(NULL, pamh);
ASSERT_EQ(PAM_USER_UNKNOWN, pam_authenticate(pamh, 0));
ASSERT_EQ(PAM_PERM_DENIED, pam_setcred(pamh, 0));
ASSERT_EQ(PAM_USER_UNKNOWN, pam_acct_mgmt(pamh, 0));
ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_chauthtok(pamh, 0));
ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_open_session(pamh, 0));
ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_close_session(pamh, 0));
ASSERT_EQ(PAM_SUCCESS, pam_end(pamh, 0));
pamh = NULL;
ASSERT_NE(NULL, fp = fopen(config_file, "w"));
ASSERT_LT(0, fprintf(fp, "nosuchuser:ignore\n"));
ASSERT_EQ(0, fclose(fp));
/*
* conf= specifies an existing file,
* PAM_IGNORE -> PAM_PERM_DENIED
*/
ASSERT_NE(NULL, fp = fopen(service_file, "w"));
ASSERT_LT(0,
fprintf(fp, "#%%PAM-1.0\n"
"auth required %s/" LTDIR "%s.so conf=%s\n"
"account required %s/" LTDIR "%s.so conf=%s\n"
"password required %s/" LTDIR "%s.so conf=%s\n"
"session required %s/" LTDIR "%s.so conf=%s\n",
cwd, MODULE_NAME, config_file,
cwd, MODULE_NAME, config_file,
cwd, MODULE_NAME, config_file,
cwd, MODULE_NAME, config_file));
ASSERT_EQ(0, fclose(fp));
ASSERT_EQ(PAM_SUCCESS,
pam_start_confdir(service_file, "root", &conv, ".", &pamh));
ASSERT_NE(NULL, pamh);
ASSERT_EQ(PAM_PERM_DENIED, pam_authenticate(pamh, 0));
ASSERT_EQ(PAM_PERM_DENIED, pam_setcred(pamh, 0));
ASSERT_EQ(PAM_PERM_DENIED, pam_acct_mgmt(pamh, 0));
ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_chauthtok(pamh, 0));
ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_open_session(pamh, 0));
ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_close_session(pamh, 0));
ASSERT_EQ(PAM_SUCCESS, pam_end(pamh, 0));
pamh = NULL;
/*
* conf= specifies an existing file,
* PAM_IGNORE -> PAM_SUCCESS
*/
ASSERT_NE(NULL, fp = fopen(service_file, "w"));
ASSERT_LT(0,
fprintf(fp, "#%%PAM-1.0\n"
"auth required %s/" LTDIR "%s.so conf=%s\n"
"auth required %s/../pam_permit/" LTDIR "pam_permit.so\n"
"account required %s/" LTDIR "%s.so conf=%s\n"
"account required %s/../pam_permit/" LTDIR "pam_permit.so\n"
"password required %s/" LTDIR "%s.so conf=%s\n"
"password required %s/../pam_permit/" LTDIR "pam_permit.so\n"
"session required %s/" LTDIR "%s.so conf=%s\n"
"session required %s/../pam_permit/" LTDIR "pam_permit.so\n",
cwd, MODULE_NAME, config_file, cwd,
cwd, MODULE_NAME, config_file, cwd,
cwd, MODULE_NAME, config_file, cwd,
cwd, MODULE_NAME, config_file, cwd));
ASSERT_EQ(0, fclose(fp));
ASSERT_EQ(PAM_SUCCESS,
pam_start_confdir(service_file, "root", &conv, ".", &pamh));
ASSERT_NE(NULL, pamh);
ASSERT_EQ(PAM_SUCCESS, pam_authenticate(pamh, 0));
ASSERT_EQ(PAM_SUCCESS, pam_setcred(pamh, 0));
ASSERT_EQ(PAM_SUCCESS, pam_acct_mgmt(pamh, 0));
ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_chauthtok(pamh, 0));
ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_open_session(pamh, 0));
ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_close_session(pamh, 0));
ASSERT_EQ(PAM_SUCCESS, pam_end(pamh, 0));
pamh = NULL;
/*
* conf= specifies a missing file,
* PAM_IGNORE -> PAM_PERM_DENIED
*/
ASSERT_NE(NULL, fp = fopen(service_file, "w"));
ASSERT_LT(0,
fprintf(fp, "#%%PAM-1.0\n"
"auth required %s/" LTDIR "%s.so conf=%s\n"
"account required %s/" LTDIR "%s.so conf=%s\n"
"password required %s/" LTDIR "%s.so conf=%s\n"
"session required %s/" LTDIR "%s.so conf=%s\n",
cwd, MODULE_NAME, missing_file,
cwd, MODULE_NAME, missing_file,
cwd, MODULE_NAME, missing_file,
cwd, MODULE_NAME, missing_file));
ASSERT_EQ(0, fclose(fp));
ASSERT_EQ(PAM_SUCCESS,
pam_start_confdir(service_file, "root", &conv, ".", &pamh));
ASSERT_NE(NULL, pamh);
ASSERT_EQ(PAM_SERVICE_ERR, pam_authenticate(pamh, 0));
ASSERT_EQ(PAM_PERM_DENIED, pam_setcred(pamh, 0));
ASSERT_EQ(PAM_SERVICE_ERR, pam_acct_mgmt(pamh, 0));
ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_chauthtok(pamh, 0));
ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_open_session(pamh, 0));
ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_close_session(pamh, 0));
ASSERT_EQ(PAM_SUCCESS, pam_end(pamh, 0));
pamh = NULL;
/* cleanup */
ASSERT_EQ(0, unlink(config_file));
ASSERT_EQ(0, unlink(service_file));
free(cwd);
return 0;
}
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