1 /* 2 * Copyright (c) 2014 Stefan Srensen <stefan.sorensen (at) spectralink.com> 3 * Copyright (c) 2014-2015 Dmitry V. Levin <ldv (at) altlinux.org> 4 * Copyright (c) 2014-2017 The strace developers. 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 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #include "defs.h" 31 #include <linux/ioctl.h> 32 #include <linux/ptp_clock.h> 33 34 #include "xlat/ptp_flags_options.h" 35 36 int 37 ptp_ioctl(struct tcb *const tcp, const unsigned int code, 38 const kernel_ulong_t arg) 39 { 40 if (!verbose(tcp)) 41 return RVAL_DECODED; 42 43 switch (code) { 44 case PTP_EXTTS_REQUEST: { 45 struct ptp_extts_request extts; 46 47 tprints(", "); 48 if (umove_or_printaddr(tcp, arg, &extts)) 49 break; 50 51 tprintf("{index=%d, flags=", extts.index); 52 printflags(ptp_flags_options, extts.flags, "PTP_???"); 53 tprints("}"); 54 break; 55 } 56 57 case PTP_PEROUT_REQUEST: { 58 struct ptp_perout_request perout; 59 60 tprints(", "); 61 if (umove_or_printaddr(tcp, arg, &perout)) 62 break; 63 64 tprintf("{start={%" PRId64 ", %" PRIu32 "}" 65 ", period={%" PRId64 ", %" PRIu32 "}" 66 ", index=%d, flags=", 67 (int64_t)perout.start.sec, perout.start.nsec, 68 (int64_t)perout.period.sec, perout.period.nsec, 69 perout.index); 70 printflags(ptp_flags_options, perout.flags, "PTP_???"); 71 tprints("}"); 72 break; 73 } 74 75 case PTP_ENABLE_PPS: 76 tprintf(", %" PRI_kld, arg); 77 break; 78 79 case PTP_SYS_OFFSET: { 80 struct ptp_sys_offset sysoff; 81 82 if (entering(tcp)) { 83 tprints(", "); 84 if (umove_or_printaddr(tcp, arg, &sysoff)) 85 break; 86 87 tprintf("{n_samples=%u", sysoff.n_samples); 88 return 1; 89 } else { 90 unsigned int n_samples, i; 91 92 if (syserror(tcp)) { 93 tprints("}"); 94 break; 95 } 96 97 tprints(", "); 98 if (umove(tcp, arg, &sysoff) < 0) { 99 tprints("???}"); 100 break; 101 } 102 103 tprints("ts=["); 104 n_samples = sysoff.n_samples > PTP_MAX_SAMPLES ? 105 PTP_MAX_SAMPLES : sysoff.n_samples; 106 for (i = 0; i < 2 * n_samples + 1; ++i) { 107 if (i > 0) 108 tprints(", "); 109 tprintf("{%" PRId64 ", %" PRIu32 "}", 110 (int64_t)sysoff.ts[i].sec, 111 sysoff.ts[i].nsec); 112 } 113 if (sysoff.n_samples > PTP_MAX_SAMPLES) 114 tprints(", ..."); 115 tprints("]}"); 116 break; 117 } 118 } 119 case PTP_CLOCK_GETCAPS: { 120 struct ptp_clock_caps caps; 121 122 if (entering(tcp)) 123 return 0; 124 125 tprints(", "); 126 if (umove_or_printaddr(tcp, arg, &caps)) 127 break; 128 129 tprintf("{max_adj=%d, n_alarm=%d, n_ext_ts=%d, n_per_out=%d, pps=%d}", 130 caps.max_adj, caps.n_alarm, caps.n_ext_ts, 131 caps.n_per_out, caps.pps); 132 break; 133 } 134 135 default: 136 return RVAL_DECODED; 137 } 138 139 return RVAL_DECODED | 1; 140 } 141