t_rnd.c revision 314817 
1/*	$NetBSD: t_rnd.c,v 1.10 2017/01/13 21:30:41 christos Exp $	*/
2
3/*
4 * Copyright (c) 2009 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/cdefs.h>
30__RCSID("$NetBSD: t_rnd.c,v 1.10 2017/01/13 21:30:41 christos Exp $");
31
32#include <sys/types.h>
33#include <sys/fcntl.h>
34#include <sys/ioctl.h>
35#include <sys/rndio.h>
36
37#include <atf-c.h>
38
39#include <rump/rump.h>
40#include <rump/rump_syscalls.h>
41
42#include "h_macros.h"
43
44ATF_TC(RNDADDDATA);
45ATF_TC_HEAD(RNDADDDATA, tc)
46{
47	atf_tc_set_md_var(tc, "descr",
48	    "Checks ioctl(RNDADDDATA) (PR kern/42020)");
49}
50
51/* Adapted from example provided by Juho Salminen in the noted PR. */
52ATF_TC_BODY(RNDADDDATA, tc)
53{
54	rnddata_t rd;
55	int fd;
56
57	rump_init();
58	fd = rump_sys_open("/dev/random", O_RDWR, 0);
59	if (fd == -1)
60		atf_tc_fail_errno("cannot open /dev/random");
61
62	rd.entropy = 1;
63	rd.len = 1;
64	if (rump_sys_ioctl(fd, RNDADDDATA, &rd) == -1)
65		atf_tc_fail_errno("RNDADDDATA");
66}
67
68ATF_TC(RNDADDDATA2);
69ATF_TC_HEAD(RNDADDDATA2, tc)
70{
71	atf_tc_set_md_var(tc, "descr", "checks ioctl(RNDADDDATA) deals with "
72	    "garbage len field");
73}
74ATF_TC_BODY(RNDADDDATA2, tc)
75{
76	rnddata_t rd;
77	int fd;
78
79	rump_init();
80	fd = rump_sys_open("/dev/random", O_RDWR, 0);
81	if (fd == -1)
82		atf_tc_fail_errno("cannot open /dev/random");
83
84	rd.entropy = 1;
85	rd.len = -1;
86	ATF_REQUIRE_ERRNO(EINVAL, rump_sys_ioctl(fd, RNDADDDATA, &rd) == -1);
87}
88
89ATF_TC(read_random);
90ATF_TC_HEAD(read_random, tc)
91{
92	atf_tc_set_md_var(tc, "descr", "does reading /dev/random return "
93	    "within reasonable time");
94	atf_tc_set_md_var(tc, "timeout", "10");
95}
96
97ATF_TC_BODY(read_random, tc)
98{
99	char buf[128];
100	int fd;
101
102	rump_init();
103	RL(fd = rump_sys_open("/dev/random", O_RDONLY));
104	RL(rump_sys_read(fd, buf, sizeof(buf)));
105}
106
107ATF_TP_ADD_TCS(tp)
108{
109	ATF_TP_ADD_TC(tp, RNDADDDATA);
110	ATF_TP_ADD_TC(tp, RNDADDDATA2);
111	ATF_TP_ADD_TC(tp, read_random);
112
113	return atf_no_error();
114}
115