strace/ptp.c
Dmitry V. Levin 317d19e8e9 ptp.c: enhance ptp ioctl parser
* ptp.c: Include <linux/ioctl.h> instead of <sys/ioctl.h>.
Update for RVAL_DECODED.
(ptp_ioctl): Use umove_or_printaddr.
2015-07-10 22:54:29 +00:00

111 lines
2.2 KiB
C

#include "defs.h"
#include <linux/ioctl.h>
#include <linux/ptp_clock.h>
#include "xlat/ptp_flags_options.h"
int
ptp_ioctl(struct tcb *tcp, const unsigned int code, const long arg)
{
if (!verbose(tcp))
return RVAL_DECODED;
switch (code) {
case PTP_EXTTS_REQUEST: {
struct ptp_extts_request extts;
tprints(", ");
if (umove_or_printaddr(tcp, arg, &extts))
break;
tprintf("{index=%d, flags=", extts.index);
printflags(ptp_flags_options, extts.flags, "PTP_???");
tprints("}");
break;
}
case PTP_PEROUT_REQUEST: {
struct ptp_perout_request perout;
tprints(", ");
if (umove_or_printaddr(tcp, arg, &perout))
break;
tprintf("{start={%" PRId64 ", %" PRIu32 "}"
", period={%" PRId64 ", %" PRIu32 "}"
", index=%d, flags=",
(int64_t)perout.start.sec, perout.start.nsec,
(int64_t)perout.period.sec, perout.period.nsec,
perout.index);
printflags(ptp_flags_options, perout.flags, "PTP_???");
tprints("}");
break;
}
case PTP_ENABLE_PPS:
tprintf(", %ld", arg);
break;
case PTP_SYS_OFFSET: {
struct ptp_sys_offset sysoff;
if (entering(tcp)) {
tprints(", ");
if (umove_or_printaddr(tcp, arg, &sysoff))
break;
tprintf("{n_samples=%u", sysoff.n_samples);
return 1;
} else {
unsigned int n_samples, i;
if (syserror(tcp)) {
tprints("}");
break;
}
tprints(", ");
if (umove(tcp, arg, &sysoff) < 0) {
tprints("???}");
break;
}
tprints("ts=[");
n_samples = sysoff.n_samples > PTP_MAX_SAMPLES ?
PTP_MAX_SAMPLES : sysoff.n_samples;
for (i = 0; i < 2 * n_samples + 1; ++i) {
if (i > 0)
tprints(", ");
tprintf("{%" PRId64 ", %" PRIu32 "}",
(int64_t)sysoff.ts[i].sec,
sysoff.ts[i].nsec);
}
if (sysoff.n_samples > PTP_MAX_SAMPLES)
tprints(", ...");
tprints("]}");
break;
}
}
case PTP_CLOCK_GETCAPS: {
struct ptp_clock_caps caps;
if (entering(tcp))
return 0;
tprints(", ");
if (umove_or_printaddr(tcp, arg, &caps))
break;
tprintf("{max_adj=%d, n_alarm=%d, n_ext_ts=%d, n_per_out=%d, pps=%d}",
caps.max_adj, caps.n_alarm, caps.n_ext_ts,
caps.n_per_out, caps.pps);
break;
}
default:
return RVAL_DECODED;
}
return RVAL_DECODED | 1;
}