tests/fs/nfs/t_mountd.c

   1 /*      $NetBSD: t_mountd.c,v 1.5 2012/02/24 13:53:46 joerg Exp $       */
   2
   3 /*-
   4  * Copyright (c) 2010 The NetBSD Foundation, Inc.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
  16  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  17  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  18  * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  21  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  25  * SUCH DAMAGE.
  26  */
  27
  28 #include <sys/types.h>
  29 #include <sys/mount.h>
  30
  31 #include <atf-c.h>
  32 #include <errno.h>
  33 #include <fcntl.h>
  34 #include <pthread.h>
  35 #include <stdio.h>
  36 #include <stdlib.h>
  37 #include <unistd.h>
  38 #include <string.h>
  39 #include <signal.h>
  40
  41 #include <rump/rump.h>
  42 #include <rump/rump_syscalls.h>
  43
  44 #include "../../h_macros.h"
  45 #include "../common/h_fsmacros.h"
  46
  47 ATF_TC(mountdhup);
  48 ATF_TC_HEAD(mountdhup, tc)
  49 {
  50
  51         atf_tc_set_md_var(tc, "descr", "test for service interrupt while "
  52             "mountd handles SIGHUP");
  53 }
  54
  55 static volatile int quit;
  56
  57 static void *
  58 wrkwrkwrk(void *unused)
  59 {
  60         int fd, fail;
  61
  62         fail = 0;
  63
  64         rump_sys_chdir(FSTEST_MNTNAME);
  65         while (!quit) {
  66                 fd = rump_sys_open("file", O_RDWR | O_CREAT);
  67                 if (fd == -1) {
  68                         if (errno == EACCES) {
  69                                 fail++;
  70                                 break;
  71                         }
  72                 }
  73                 rump_sys_close(fd);
  74                 if (rump_sys_unlink("file") == -1) {
  75                         if (errno == EACCES) {
  76                                 fail++;
  77                                 break;
  78                         }
  79                 }
  80         }
  81         rump_sys_chdir("/");
  82         quit = 1;
  83
  84         return fail ? wrkwrkwrk : NULL;
  85 }
  86
  87 ATF_TC_BODY(mountdhup, tc)
  88 {
  89         pthread_t pt;
  90         struct nfstestargs *nfsargs;
  91         void *voidargs;
  92         int attempts;
  93         void *fail;
  94
  95         FSTEST_CONSTRUCTOR(tc, nfs, voidargs);
  96         nfsargs = voidargs;
  97
  98         pthread_create(&pt, NULL, wrkwrkwrk, NULL);
  99         for (attempts = 100; attempts && !quit; attempts--) {
 100                 usleep(100000);
 101                 kill(nfsargs->ta_childpid, SIGHUP);
 102         }
 103         quit = 1;
 104         pthread_join(pt, &fail);
 105
 106         FSTEST_DESTRUCTOR(tc, nfs, voidargs);
 107
 108         atf_tc_expect_fail("PR kern/5844");
 109         if (fail)
 110                 atf_tc_fail("op failed with EACCES");
 111         else
 112                 atf_tc_fail("race did not trigger this time");
 113 }
 114
 115 ATF_TP_ADD_TCS(tp)
 116 {
 117
 118         ATF_TP_ADD_TC(tp, mountdhup);
 119
 120         return atf_no_error();
 121 }