1 /*
2 * This file and its contents are supplied under the terms of the
3 * Common Development and Distribution License ("CDDL"), version 1.0.
4 * You may only use this file in accordance with the terms of version
5 * 1.0 of the CDDL.
6 *
7 * A full copy of the text of the CDDL should have accompanied this
8 * source. A copy of the CDDL is also available via the Internet at
9 * http://www.illumos.org/license/CDDL.
10 */
11
12 /*
13 * Copyright 2020 Oxide Computer Company
14 */
15
16 /*
17 * Describe the purpose of this file.
18 */
19
20 #include <sys/types.h>
21 #include <sys/stat.h>
22 #include <fcntl.h>
23 #include <stdlib.h>
24 #include <err.h>
25 #include <sys/sensors.h>
26 #include <unistd.h>
27 #include <errno.h>
28 #include <string.h>
29 #include <sys/sysmacros.h>
30
31 static const char *error_sensor = "/dev/sensors/test/test.eio.0";
32 static int error_exit;
33
34 static void
error_kind(int fd,int exp)35 error_kind(int fd, int exp)
36 {
37 sensor_ioctl_kind_t kind, alt_kind;
38
39 arc4random_buf(&alt_kind, sizeof (alt_kind));
40 (void) memcpy(&kind, &alt_kind, sizeof (alt_kind));
41
42 if (ioctl(fd, SENSOR_IOCTL_KIND, &kind) == 0) {
43 warnx("TEST FAILED: SENSOR_IOCTL_KIND succeeded on EIO "
44 "sensor");
45 error_exit = EXIT_FAILURE;
46 }
47
48 if (errno != exp) {
49 warnx("TEST FAILED: SENSOR_IOCTL_KIND got errno %d, "
50 "expected %d", errno, exp);
51 error_exit = EXIT_FAILURE;
52 }
53
54 if (memcmp(&kind, &alt_kind, sizeof (alt_kind)) != 0) {
55 warnx("TEST FAILED: SENSOR_IOCTL_KIND modified data on error");
56 error_exit = EXIT_FAILURE;
57 }
58 }
59
60 static void
error_temp(int fd,int exp)61 error_temp(int fd, int exp)
62 {
63 sensor_ioctl_scalar_t scalar, alt_scalar;
64
65 arc4random_buf(&alt_scalar, sizeof (alt_scalar));
66 (void) memcpy(&scalar, &alt_scalar, sizeof (alt_scalar));
67
68 if (ioctl(fd, SENSOR_IOCTL_SCALAR, &scalar) == 0) {
69 warnx("TEST FAILED: SENSIOR_IOCTL_SCALAR suceeded on "
70 "EIO sensor");
71 error_exit = EXIT_FAILURE;
72 }
73
74 if (errno != exp) {
75 warnx("TEST FAILED: SENSIOR_IOCTL_SCALAR got errno %d, "
76 "expected %d", errno, EIO);
77 error_exit = EXIT_FAILURE;
78 }
79
80 if (memcmp(&scalar, &alt_scalar, sizeof (alt_scalar)) != 0) {
81 warnx("TEST FAILED: SENSIOR_IOCTL_SCALAR modified "
82 "data on error");
83 error_exit = EXIT_FAILURE;
84 }
85 }
86
87 int
main(void)88 main(void)
89 {
90 int i;
91 int flags[] = { O_RDWR, O_WRONLY, O_RDONLY | O_NDELAY,
92 O_RDONLY | O_NONBLOCK };
93 int fd = open(error_sensor, O_RDONLY);
94 if (fd < 0) {
95 err(EXIT_FAILURE, "TEST FAILED: failed to open %s",
96 error_sensor);
97 }
98
99 error_kind(fd, EIO);
100 error_temp(fd, EIO);
101 (void) close(fd);
102
103 /*
104 * Check for illegal open combinations.
105 */
106 for (i = 0; i < ARRAY_SIZE(flags); i++) {
107 fd = open(error_sensor, flags[i]);
108 if (fd >= 0) {
109 printf("i is %d\n", i);
110 warnx("TEST FAILED: opened a sensor with flags 0x%x, "
111 "but expected failure", flags[i]);
112 error_exit = EXIT_FAILURE;
113 }
114 }
115
116 return (error_exit);
117 }
118