xref: /freebsd/contrib/netbsd-tests/kernel/t_rnd.c (revision e8d8bef961a50d4dc22501cde4fb9fb0be1b2532)
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 
44 ATF_TC(RNDADDDATA);
45 ATF_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. */
52 ATF_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 
68 ATF_TC(RNDADDDATA2);
69 ATF_TC_HEAD(RNDADDDATA2, tc)
70 {
71 	atf_tc_set_md_var(tc, "descr", "checks ioctl(RNDADDDATA) deals with "
72 	    "garbage len field");
73 }
74 ATF_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 
89 ATF_TC(read_random);
90 ATF_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 
97 ATF_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 
107 ATF_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