1 /*
2 * Check decoding of PTP_* commands of ioctl syscall.
3 *
4 * Copyright (c) 2018 Harsha Sharma <harshasharmaiitr@gmail.com>
5 * Copyright (c) 2018 The strace developers.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "tests.h"
32
33 #ifdef HAVE_STRUCT_PTP_SYS_OFFSET
34
35 #include <errno.h>
36 #include <fcntl.h>
37 #include <inttypes.h>
38 #include <stdio.h>
39 #include <stdlib.h>
40 #include <unistd.h>
41 #include <sys/ioctl.h>
42 #include <linux/ptp_clock.h>
43
44 #include "xlat.h"
45 #include "xlat/ptp_flags_options.h"
46
47 static void
test_no_device(void)48 test_no_device(void)
49 {
50 TAIL_ALLOC_OBJECT_CONST_PTR(struct ptp_clock_caps, caps);
51 fill_memory(caps, sizeof(*caps));
52
53 TAIL_ALLOC_OBJECT_CONST_PTR(struct ptp_sys_offset, sysoff);
54 fill_memory(sysoff, sizeof(*sysoff));
55
56 TAIL_ALLOC_OBJECT_CONST_PTR(struct ptp_extts_request, extts);
57 fill_memory(extts, sizeof(*extts));
58
59 TAIL_ALLOC_OBJECT_CONST_PTR(struct ptp_perout_request, perout);
60 fill_memory(perout, sizeof(*perout));
61
62 int saved_errno;
63
64 /* PTP_CLOCK_GETCAPS */
65 ioctl(-1, PTP_CLOCK_GETCAPS, NULL);
66 printf("ioctl(-1, PTP_CLOCK_GETCAPS, NULL) = -1 EBADF (%m)\n");
67 ioctl(-1, PTP_CLOCK_GETCAPS, caps);
68 printf("ioctl(-1, PTP_CLOCK_GETCAPS, %p) = -1 EBADF (%m)\n", caps);
69
70 /* PTP_SYS_OFFSET */
71 ioctl(-1, PTP_SYS_OFFSET, NULL);
72 printf("ioctl(-1, PTP_SYS_OFFSET, NULL) = -1 EBADF (%m)\n");
73 ioctl(-1, PTP_SYS_OFFSET, sysoff);
74 printf("ioctl(-1, PTP_SYS_OFFSET, {n_samples=%u}) = -1 EBADF (%m)\n",
75 sysoff->n_samples);
76
77 /* PTP_ENABLE_PPS */
78 ioctl(-1, PTP_ENABLE_PPS, 0);
79 printf("ioctl(-1, PTP_ENABLE_PPS, 0) = -1 EBADF (%m)\n");
80 ioctl(-1, PTP_ENABLE_PPS, 1);
81 printf("ioctl(-1, PTP_ENABLE_PPS, 1) = -1 EBADF (%m)\n");
82
83 /* PTP_EXTTS_REQUEST */
84 ioctl(-1, PTP_EXTTS_REQUEST, NULL);
85 printf("ioctl(-1, PTP_EXTTS_REQUEST, NULL) = -1 EBADF (%m)\n");
86 ioctl(-1, PTP_EXTTS_REQUEST, extts);
87 saved_errno = errno;
88 printf("ioctl(-1, PTP_EXTTS_REQUEST, {index=%d, flags=", extts->index);
89 printflags(ptp_flags_options, extts->flags, "PTP_???");
90 errno = saved_errno;
91 printf("}) = -1 EBADF (%m)\n");
92
93 /* PTP_PEROUT_REQUEST */
94 ioctl(-1, PTP_PEROUT_REQUEST, NULL);
95 printf("ioctl(-1, PTP_PEROUT_REQUEST, NULL) = -1 EBADF (%m)\n");
96 ioctl(-1, PTP_PEROUT_REQUEST, perout);
97 saved_errno = errno;
98 printf("ioctl(-1, PTP_PEROUT_REQUEST, {start={sec=%" PRId64
99 ", nsec=%" PRIu32 "}, period={sec=%" PRId64 ", nsec=%" PRIu32 "}"
100 ", index=%d, flags=",
101 (int64_t) perout->start.sec, perout->start.nsec,
102 (int64_t)perout->period.sec, perout->period.nsec, perout->index);
103 printflags(ptp_flags_options, perout->flags, "PTP_???");
104 errno = saved_errno;
105 printf("}) = -1 EBADF (%m)\n");
106
107 /* unrecognized */
108 ioctl(-1, _IOC(_IOC_READ, PTP_CLK_MAGIC, 0xff, 0xfe), 0);
109 printf("ioctl(-1, _IOC(_IOC_READ, %#x, 0xff, 0xfe), 0)"
110 " = -1 EBADF (%m)\n", PTP_CLK_MAGIC);
111
112 const unsigned long arg = (unsigned long) 0xfacefeeddeadbeefULL;
113 ioctl(-1, _IOC(_IOC_WRITE, PTP_CLK_MAGIC, 0xfd, 0xfc), arg);
114 printf("ioctl(-1, _IOC(_IOC_WRITE, %#x, 0xfd, 0xfc), %#lx)"
115 " = -1 EBADF (%m)\n", PTP_CLK_MAGIC, arg);
116 }
117
118 int
main(void)119 main(void)
120 {
121 test_no_device();
122
123 puts("+++ exited with 0 +++");
124 return 0;
125 }
126
127 #else
128
129 SKIP_MAIN_UNDEFINED("HAVE_STRUCT_PTP_SYS_OFFSET")
130
131 #endif /* HAVE_STRUCT_PTP_SYS_OFFSET */
132