tests/fs/vfs/t_full.c

   1 /*      $NetBSD: t_full.c,v 1.8 2013/03/16 05:45:37 jmmv Exp $  */
   2
   3 /*-
   4  * Copyright (c) 2010 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  26  * POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #include <sys/stat.h>
  30 #include <sys/statvfs.h>
  31
  32 #include <atf-c.h>
  33 #include <fcntl.h>
  34 #include <libgen.h>
  35 #include <stdlib.h>
  36 #include <unistd.h>
  37
  38 #include <rump/rump_syscalls.h>
  39 #include <rump/rump.h>
  40
  41 #include "../common/h_fsmacros.h"
  42 #include "../../h_macros.h"
  43
  44 /*
  45  * Write this much over the image size.  This is to force an NFS commit,
  46  * since we might just stuff data into the cache and miss the problem.
  47  */
  48 #define NFSBONUS (1<<16)
  49
  50 static void
  51 fillfs(const atf_tc_t *tc, const char *mp)
  52 {
  53         char buf[8192];
  54         size_t written;
  55         ssize_t n = 0; /* xxxgcc */
  56         size_t bonus;
  57         int fd, i = 0;
  58
  59         if (FSTYPE_P2K_FFS(tc) || FSTYPE_PUFFS(tc) || FSTYPE_RUMPFS(tc)) {
  60                 atf_tc_skip("fs does not support explicit block allocation "
  61                     "(GOP_ALLOC)");
  62         }
  63
  64         bonus = 0;
  65         if (FSTYPE_NFS(tc))
  66                 bonus = NFSBONUS;
  67
  68         if (rump_sys_chdir(mp) == -1)
  69                 atf_tc_fail_errno("chdir mountpoint");
  70         fd = rump_sys_open("afile", O_CREAT | O_RDWR);
  71         if (fd == -1)
  72                 atf_tc_fail_errno("create file");
  73
  74         for (written = 0; written < FSTEST_IMGSIZE + bonus; written +=n) {
  75                 memset(buf, i++, sizeof(buf)); /* known garbage */
  76                 n = rump_sys_write(fd, buf, sizeof(buf));
  77                 if (n == -1)
  78                         break;
  79         }
  80         if (FSTYPE_ZFS(tc))
  81                 atf_tc_expect_fail("PR kern/47656: Test known to be broken");
  82         if (n == -1) {
  83                 if (errno != ENOSPC)
  84                         atf_tc_fail_errno("write");
  85         } else {
  86                 atf_tc_fail("filled file system over size limit");
  87         }
  88
  89         rump_sys_close(fd);
  90         rump_sys_chdir("/");
  91 }
  92
  93 ATF_TC_FSAPPLY(fillfs, "fills file system, expects ENOSPC");
  94
  95 ATF_TP_ADD_TCS(tp)
  96 {
  97
  98         ATF_TP_FSAPPLY(fillfs);
  99
 100         return atf_no_error();
 101 }