t_full.c revision 1.1 
1/*	$NetBSD: t_full.c,v 1.1 2010/08/17 11:46:16 pooka 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
50static void
51fillfs(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_PUFFS(tc)) {
60		/* XXX: I would *LIKE* to skip this, but atf won't let me */
61		return;
62
63		atf_tc_skip("puffs does not support explicit block allocation");
64	}
65
66	bonus = 0;
67	if (FSTYPE_NFS(tc))
68		bonus = NFSBONUS;
69
70	if (rump_sys_chdir(mp) == -1)
71		atf_tc_fail_errno("chdir mountpoint");
72	fd = rump_sys_open("afile", O_CREAT | O_RDWR);
73	if (fd == -1)
74		atf_tc_fail_errno("create file");
75
76	for (written = 0; written < FSTEST_IMGSIZE + bonus; written +=n) {
77		memset(buf, i++, sizeof(buf)); /* known garbage */
78		n = rump_sys_write(fd, buf, sizeof(buf));
79		if (n == -1)
80			break;
81	}
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
93ATF_TC_FSAPPLY(fillfs, "fills file system, expects ENOSPC");
94
95ATF_TP_ADD_TCS(tp)
96{
97
98	ATF_TP_FSAPPLY(fillfs);
99
100	return atf_no_error();
101}
102