1 /* 2 * Check decoding of PTP_* commands of ioctl syscall. 3 * 4 * Copyright (c) 2018 Harsha Sharma <harshasharmaiitr (at) 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 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 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
