1  /*
       2   * Redistribution and use in source and binary forms, with or without
       3   * modification, are permitted provided that the following conditions
       4   * are met:
       5   * 1. Redistributions of source code must retain the above copyright
       6   *    notice, and the entire permission notice in its entirety,
       7   *    including the disclaimer of warranties.
       8   * 2. Redistributions in binary form must reproduce the above copyright
       9   *    notice, this list of conditions and the following disclaimer in the
      10   *    documentation and/or other materials provided with the distribution.
      11   * 3. The name of the author may not be used to endorse or promote
      12   *    products derived from this software without specific prior
      13   *    written permission.
      14   *
      15   * ALTERNATIVELY, this product may be distributed under the terms of
      16   * the GNU Public License, in which case the provisions of the GPL are
      17   * required INSTEAD OF the above restrictions.  (This clause is
      18   * necessary due to a potential bad interaction between the GPL and
      19   * the restrictions contained in a BSD-style copyright.)
      20   *
      21   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
      22   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
      23   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
      24   * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
      25   * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
      26   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
      27   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      28   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
      29   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
      30   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
      31   * OF THE POSSIBILITY OF SUCH DAMAGE.
      32   */
      33  
      34  /*
      35    test case:
      36  
      37    Check the following line in limits.conf:
      38    *               soft    nice     19
      39    *               hard    nice     -20
      40  
      41    getrlimit should return soft=1 and hard=40.
      42  */
      43  
      44  #ifdef HAVE_CONFIG_H
      45  #include <config.h>
      46  #endif
      47  
      48  #include <stdio.h>
      49  #include <stdlib.h>
      50  #include <string.h>
      51  #include <sys/time.h>
      52  #include <sys/resource.h>
      53  
      54  #include <security/pam_appl.h>
      55  
      56  /* A conversation function which uses an internally-stored value for
      57     the responses. */
      58  static int
      59  fake_conv (int num_msg, const struct pam_message **msgm UNUSED,
      60  	   struct pam_response **response, void *appdata_ptr UNUSED)
      61  {
      62    struct pam_response *reply;
      63    int count;
      64  
      65    /* Sanity test. */
      66    if (num_msg <= 0)
      67      return PAM_CONV_ERR;
      68  
      69    /* Allocate memory for the responses. */
      70    reply = calloc (num_msg, sizeof (struct pam_response));
      71    if (reply == NULL)
      72      return PAM_CONV_ERR;
      73  
      74    /* Each prompt elicits the same response. */
      75    for (count = 0; count < num_msg; ++count)
      76      {
      77        reply[count].resp_retcode = 0;
      78        reply[count].resp = strdup ("!!");
      79      }
      80  
      81    /* Set the pointers in the response structure and return. */
      82    *response = reply;
      83    return PAM_SUCCESS;
      84  }
      85  
      86  static struct pam_conv conv = {
      87      fake_conv,
      88      NULL
      89  };
      90  
      91  int
      92  main(int argc, char *argv[])
      93  {
      94    pam_handle_t *pamh = NULL;
      95    const char *user="tstpamlimits";
      96    int retval;
      97    int debug = 0;
      98  
      99    if (argc > 1 && strcmp (argv[1], "-d") == 0)
     100      debug = 1;
     101  
     102  #ifdef RLIMIT_NICE
     103    retval = pam_start("tst-pam_limits1", user, &conv, &pamh);
     104    if (retval != PAM_SUCCESS)
     105      {
     106        if (debug)
     107  	fprintf (stderr, "pam_limits1: pam_start returned %d\n", retval);
     108        return 1;
     109      }
     110  
     111    retval = pam_set_item (pamh, PAM_TTY, "/dev/tty1");
     112    if (retval != PAM_SUCCESS)
     113      {
     114        if (debug)
     115  	fprintf (stderr,
     116  		 "pam_limits1: pam_set_item(PAM_TTY) returned %d\n",
     117  		 retval);
     118        return 1;
     119      }
     120  
     121    retval = pam_open_session (pamh, 0);
     122    if (retval != PAM_SUCCESS)
     123      {
     124        if (debug)
     125  	fprintf (stderr, "pam_limits1: pam_open_session returned %d\n",
     126  		 retval);
     127        return 1;
     128      }
     129  
     130    struct rlimit rlim;
     131  
     132    getrlimit (RLIMIT_NICE, &rlim);
     133  
     134    if (rlim.rlim_cur != 1 && rlim.rlim_max != 40)
     135      {
     136        if (debug)
     137  	fprintf (stderr, "pam_limits1: getrlimit failed, soft=%u, hard=%u\n",
     138  		 (unsigned int) rlim.rlim_cur, (unsigned int) rlim.rlim_max);
     139        return 1;
     140      }
     141  
     142    retval = pam_end (pamh,retval);
     143    if (retval != PAM_SUCCESS)
     144      {
     145        if (debug)
     146  	fprintf (stderr, "pam_limits1: pam_end returned %d\n", retval);
     147        return 1;
     148      }
     149    return 0;
     150  #else
     151    if (debug)
     152      fprintf (stderr, "pam_limits1: RLIMIT_NICE does not exist)\n");
     153  
     154    return 77;
     155  #endif
     156  }