1  /*
       2   * Check pam_deny return values.
       3   *
       4   * Copyright (c) 2020 Dmitry V. Levin <ldv@altlinux.org>
       5   */
       6  
       7  #include "test_assert.h"
       8  
       9  #include <limits.h>
      10  #include <stdio.h>
      11  #include <string.h>
      12  #include <unistd.h>
      13  #include <security/pam_appl.h>
      14  
      15  #define MODULE_NAME "pam_deny"
      16  #define TEST_NAME "tst-" MODULE_NAME "-retval"
      17  
      18  static const char service_file[] = TEST_NAME ".service";
      19  static const char user_name[] = "";
      20  static struct pam_conv conv;
      21  
      22  int
      23  main(void)
      24  {
      25  	pam_handle_t *pamh = NULL;
      26  	FILE *fp;
      27  	char cwd[PATH_MAX];
      28  
      29  	ASSERT_NE(NULL, getcwd(cwd, sizeof(cwd)));
      30  
      31  	ASSERT_NE(NULL, fp = fopen(service_file, "w"));
      32  	ASSERT_LT(0, fprintf(fp, "#%%PAM-1.0\n"
      33  			     "auth required %s/.libs/%s.so\n"
      34  			     "account required %s/.libs/%s.so\n"
      35  			     "password required %s/.libs/%s.so\n"
      36  			     "session required %s/.libs/%s.so\n",
      37  			     cwd, MODULE_NAME,
      38  			     cwd, MODULE_NAME,
      39  			     cwd, MODULE_NAME,
      40  			     cwd, MODULE_NAME));
      41  	ASSERT_EQ(0, fclose(fp));
      42  
      43  	ASSERT_EQ(PAM_SUCCESS,
      44  		  pam_start_confdir(service_file, user_name, &conv, ".", &pamh));
      45  	ASSERT_NE(NULL, pamh);
      46  	ASSERT_EQ(PAM_AUTH_ERR, pam_authenticate(pamh, 0));
      47  	ASSERT_EQ(PAM_CRED_ERR, pam_setcred(pamh, 0));
      48  	ASSERT_EQ(PAM_AUTH_ERR, pam_acct_mgmt(pamh, 0));
      49  	ASSERT_EQ(PAM_AUTHTOK_ERR, pam_chauthtok(pamh, 0));
      50  	ASSERT_EQ(PAM_SESSION_ERR, pam_open_session(pamh, 0));
      51  	ASSERT_EQ(PAM_SESSION_ERR, pam_close_session(pamh, 0));
      52  	ASSERT_EQ(PAM_SUCCESS, pam_end(pamh, 0));
      53  	pamh = NULL;
      54  
      55  	ASSERT_EQ(0, unlink(service_file));
      56  
      57  	return 0;
      58  }