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/*
* Copyright (c) 2014 Stefan Sørensen <stefan.sorensen@spectralink.com>
* Copyright (c) 2014-2015 Dmitry V. Levin <ldv@strace.io>
* Copyright (c) 2014-2021 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#include "defs.h"
# include <linux/ioctl.h>
# include <linux/ptp_clock.h>
# include "xlat/ptp_extts_flags.h"
# include "xlat/ptp_perout_flags.h"
# include "xlat/ptp_pin_funcs.h"
static void
print_ptp_clock_time(const struct ptp_clock_time *const p, bool rtc)
{
tprint_struct_begin();
PRINT_FIELD_D(*p, sec);
tprint_struct_next();
PRINT_FIELD_U(*p, nsec);
if (p->reserved) {
tprint_struct_next();
PRINT_FIELD_X(*p, reserved);
}
tprint_struct_end();
if (rtc && xlat_verbose(xlat_verbosity) != XLAT_STYLE_RAW)
tprints_comment(sprinttime_nsec(p->sec, p->nsec));
}
static bool
print_ptp_clock_time_am(struct tcb *tcp, void *elem_buf, size_t elem_size,
void *data)
{
print_ptp_clock_time(elem_buf, true);
return true;
}
static bool
print_ptp_clock_time3_am(struct tcb *tcp, void *elem_buf, size_t elem_size,
void *data)
{
const struct ptp_clock_time *const p = elem_buf;
tprint_array_begin();
print_ptp_clock_time(p, true);
tprint_array_next();
print_ptp_clock_time(p + 1, true);
tprint_array_next();
print_ptp_clock_time(p + 2, true);
tprint_array_end();
return true;
}
#define PRINT_RSV(where_, field_) \
do { \
if (!IS_ARRAY_ZERO(where_.field_)) { \
tprint_struct_next(); \
PRINT_FIELD_ARRAY(where_, field_, tcp, \
print_xint_array_member); \
} \
} while (0)
int
ptp_ioctl(struct tcb *const tcp, const unsigned int code,
const kernel_ulong_t arg)
{
if (!verbose(tcp))
return RVAL_DECODED;
switch (code) {
case PTP_CLOCK_GETCAPS:
case PTP_CLOCK_GETCAPS2: {
struct ptp_clock_caps caps;
CHECK_TYPE_SIZE(caps.rsv, sizeof(unsigned int) * 12);
CHECK_IOCTL_SIZE(PTP_CLOCK_GETCAPS, 80);
CHECK_IOCTL_SIZE(PTP_CLOCK_GETCAPS2, 80);
if (entering(tcp)) {
tprint_arg_next();
return 0;
}
if (umove_or_printaddr(tcp, arg, &caps))
break;
tprint_struct_begin();
PRINT_FIELD_D(caps, max_adj);
tprint_struct_next();
PRINT_FIELD_D(caps, n_alarm);
tprint_struct_next();
PRINT_FIELD_D(caps, n_ext_ts);
tprint_struct_next();
PRINT_FIELD_D(caps, n_per_out);
tprint_struct_next();
PRINT_FIELD_D(caps, pps);
tprint_struct_next();
PRINT_FIELD_D(caps, n_pins);
tprint_struct_next();
PRINT_FIELD_D(caps, cross_timestamping);
tprint_struct_next();
PRINT_FIELD_D(caps, adjust_phase);
PRINT_RSV(caps, rsv);
tprint_struct_end();
break;
}
case PTP_EXTTS_REQUEST:
case PTP_EXTTS_REQUEST2: {
struct ptp_extts_request extts;
CHECK_TYPE_SIZE(extts.rsv, sizeof(unsigned int) * 2);
CHECK_IOCTL_SIZE(PTP_EXTTS_REQUEST, 16);
CHECK_IOCTL_SIZE(PTP_EXTTS_REQUEST2, 16);
tprint_arg_next();
if (umove_or_printaddr(tcp, arg, &extts))
break;
tprint_struct_begin();
PRINT_FIELD_U(extts, index);
tprint_struct_next();
PRINT_FIELD_FLAGS(extts, flags, ptp_extts_flags, "PTP_???");
if (code == PTP_EXTTS_REQUEST2)
PRINT_RSV(extts, rsv);
tprint_struct_end();
break;
}
case PTP_PEROUT_REQUEST:
case PTP_PEROUT_REQUEST2: {
struct ptp_perout_request perout;
CHECK_TYPE_SIZE(perout.rsv, sizeof(unsigned int) * 4);
CHECK_IOCTL_SIZE(PTP_PEROUT_REQUEST, 56);
CHECK_IOCTL_SIZE(PTP_PEROUT_REQUEST2, 56);
tprint_arg_next();
if (umove_or_printaddr(tcp, arg, &perout))
break;
tprint_struct_begin();
if (perout.flags & PTP_PEROUT_PHASE) {
PRINT_FIELD_OBJ_PTR(perout, phase, print_ptp_clock_time,
false);
} else {
PRINT_FIELD_OBJ_PTR(perout, start, print_ptp_clock_time,
true);
}
tprint_struct_next();
PRINT_FIELD_OBJ_PTR(perout, period, print_ptp_clock_time,
false);
tprint_struct_next();
PRINT_FIELD_U(perout, index);
tprint_struct_next();
PRINT_FIELD_FLAGS(perout, flags, ptp_perout_flags,
"PTP_PEROUT_???");
if (perout.flags & PTP_PEROUT_DUTY_CYCLE) {
tprint_struct_next();
PRINT_FIELD_OBJ_PTR(perout, on, print_ptp_clock_time,
false);
} else if (code == PTP_PEROUT_REQUEST2) {
PRINT_RSV(perout, rsv);
}
tprint_struct_end();
break;
}
case PTP_ENABLE_PPS:
case PTP_ENABLE_PPS2:
tprint_arg_next();
PRINT_VAL_X(arg);
break;
case PTP_SYS_OFFSET:
case PTP_SYS_OFFSET2: {
struct ptp_sys_offset sysoff;
CHECK_TYPE_SIZE(sysoff.rsv, sizeof(unsigned int) * 3);
CHECK_IOCTL_SIZE(PTP_SYS_OFFSET, 832);
CHECK_IOCTL_SIZE(PTP_SYS_OFFSET2, 832);
if (entering(tcp)) {
tprint_arg_next();
if (umove_or_printaddr(tcp, arg, &sysoff))
break;
tprint_struct_begin();
PRINT_FIELD_U(sysoff, n_samples);
PRINT_RSV(sysoff, rsv);
return 0;
} else {
if (syserror(tcp)) {
/* ... */
} else if (!umove(tcp, arg, &sysoff)) {
unsigned int n_samples =
MIN(sysoff.n_samples, PTP_MAX_SAMPLES);
tprint_struct_next();
PRINT_FIELD_ARRAY_UPTO(sysoff, ts,
2 * n_samples + 1, tcp,
print_ptp_clock_time_am);
} else {
tprint_struct_next();
tprint_unavailable();
}
tprint_struct_end();
break;
}
}
case PTP_PIN_GETFUNC:
case PTP_PIN_GETFUNC2:
case PTP_PIN_SETFUNC:
case PTP_PIN_SETFUNC2: {
struct ptp_pin_desc pinfunc;
CHECK_TYPE_SIZE(pinfunc.rsv, sizeof(unsigned int) * 5);
CHECK_IOCTL_SIZE(PTP_PIN_GETFUNC, 96);
CHECK_IOCTL_SIZE(PTP_PIN_GETFUNC2, 96);
CHECK_IOCTL_SIZE(PTP_PIN_SETFUNC, 96);
CHECK_IOCTL_SIZE(PTP_PIN_SETFUNC2, 96);
if (entering(tcp)) {
tprint_arg_next();
if (umove_or_printaddr(tcp, arg, &pinfunc))
break;
tprint_struct_begin();
PRINT_FIELD_U(pinfunc, index);
switch (code) {
case PTP_PIN_GETFUNC2:
PRINT_RSV(pinfunc, rsv);
ATTRIBUTE_FALLTHROUGH;
case PTP_PIN_GETFUNC:
return 0;
}
} else /* getter syscall exit */ {
if (syserror(tcp)) {
tprint_struct_end();
break;
}
if (umove(tcp, arg, &pinfunc) < 0) {
tprint_arg_next();
tprint_unavailable();
tprint_struct_end();
break;
}
}
/* setter syscall enter or getter syscall exit */
switch (code) {
case PTP_PIN_GETFUNC:
case PTP_PIN_GETFUNC2:
tprint_struct_next();
PRINT_FIELD_CSTRING(pinfunc, name);
}
tprint_struct_next();
PRINT_FIELD_XVAL(pinfunc, func, ptp_pin_funcs, "PTP_PF_???");
tprint_struct_next();
PRINT_FIELD_U(pinfunc, chan);
if (code == PTP_PIN_SETFUNC2) {
PRINT_RSV(pinfunc, rsv);
}
tprint_struct_end();
break;
}
case PTP_SYS_OFFSET_PRECISE:
case PTP_SYS_OFFSET_PRECISE2: {
struct ptp_sys_offset_precise sysoff;
CHECK_TYPE_SIZE(sysoff.rsv, sizeof(unsigned int) * 4);
CHECK_IOCTL_SIZE(PTP_SYS_OFFSET_PRECISE, 64);
CHECK_IOCTL_SIZE(PTP_SYS_OFFSET_PRECISE2, 64);
if (entering(tcp)) {
tprint_arg_next();
return 0;
}
if (umove_or_printaddr(tcp, arg, &sysoff))
break;
tprint_struct_begin();
PRINT_FIELD_OBJ_PTR(sysoff, device, print_ptp_clock_time, true);
tprint_struct_next();
PRINT_FIELD_OBJ_PTR(sysoff, sys_realtime, print_ptp_clock_time,
true);
tprint_struct_next();
PRINT_FIELD_OBJ_PTR(sysoff, sys_monoraw, print_ptp_clock_time,
false);
PRINT_RSV(sysoff, rsv);
tprint_struct_end();
break;
}
case PTP_SYS_OFFSET_EXTENDED:
case PTP_SYS_OFFSET_EXTENDED2: {
struct ptp_sys_offset_extended sysoff;
CHECK_TYPE_SIZE(sysoff.rsv, sizeof(unsigned int) * 3);
CHECK_IOCTL_SIZE(PTP_SYS_OFFSET_EXTENDED, 1216);
CHECK_IOCTL_SIZE(PTP_SYS_OFFSET_EXTENDED2, 1216);
if (entering(tcp)) {
tprint_arg_next();
if (umove_or_printaddr(tcp, arg, &sysoff))
break;
tprint_struct_begin();
PRINT_FIELD_U(sysoff, n_samples);
PRINT_RSV(sysoff, rsv);
return 0;
}
if (syserror(tcp)) {
/* ... */
} else if (!umove(tcp, arg, &sysoff)) {
unsigned int n_samples =
MIN(sysoff.n_samples, PTP_MAX_SAMPLES);
tprint_struct_next();
PRINT_FIELD_ARRAY_UPTO(sysoff, ts,
n_samples, tcp,
print_ptp_clock_time3_am);
} else {
tprint_struct_next();
tprint_unavailable();
}
tprint_struct_end();
break;
}
default:
return RVAL_DECODED;
}
return RVAL_IOCTL_DECODED;
}
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