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Diffstat (limited to 'usr.sbin/watchdogd/watchdogd.c')
-rw-r--r--usr.sbin/watchdogd/watchdogd.c112
1 files changed, 35 insertions, 77 deletions
diff --git a/usr.sbin/watchdogd/watchdogd.c b/usr.sbin/watchdogd/watchdogd.c
index 88b467486da1..27123f2143d0 100644
--- a/usr.sbin/watchdogd/watchdogd.c
+++ b/usr.sbin/watchdogd/watchdogd.c
@@ -63,25 +63,25 @@
static long fetchtimeout(int opt,
const char *longopt, const char *myoptarg, int zero_ok);
static void parseargs(int, char *[]);
-static int seconds_to_pow2ns(int);
static void sighandler(int);
static void watchdog_loop(void);
static int watchdog_init(void);
static int watchdog_onoff(int onoff);
-static int watchdog_patpat(u_int timeout);
+static int watchdog_patpat(sbintime_t);
static void usage(void);
-static int tstotv(struct timeval *tv, struct timespec *ts);
static int tvtohz(struct timeval *tv);
static int debugging = 0;
static int end_program = 0;
static const char *pidfile = _PATH_VARRUN "watchdogd.pid";
-static u_int timeout = WD_TO_128SEC;
+static sbintime_t timeout = 128 * SBT_1S;
static u_int exit_timeout = WD_TO_NEVER;
static u_int pretimeout = 0;
static u_int timeout_sec;
static u_int nap = 10;
+#ifdef notyet
static int passive = 0;
+#endif
static int is_daemon = 0;
static int is_dry_run = 0; /* do not arm the watchdog, only
report on timing of the watch
@@ -174,38 +174,23 @@ main(int argc, char *argv[])
pidfile_remove(pfh);
return (EX_OK);
} else {
- if (passive)
- timeout |= WD_PASSIVE;
- else
- timeout |= WD_ACTIVE;
if (watchdog_patpat(timeout) < 0)
err(EX_OSERR, "patting the dog");
return (EX_OK);
}
}
-static void
-pow2ns_to_ts(int pow2ns, struct timespec *ts)
-{
- uint64_t ns;
-
- ns = 1ULL << pow2ns;
- ts->tv_sec = ns / 1000000000ULL;
- ts->tv_nsec = ns % 1000000000ULL;
-}
-
/*
* Convert a timeout in seconds to N where 2^N nanoseconds is close to
* "seconds".
*
* The kernel expects the timeouts for watchdogs in "2^N nanosecond format".
*/
-static u_int
-parse_timeout_to_pow2ns(char opt, const char *longopt, const char *myoptarg)
+static sbintime_t
+parse_timeout_to_sbt(char opt, const char *longopt, const char *myoptarg)
{
- double a;
- u_int rv;
- struct timespec ts;
+ long a;
+ sbintime_t rv;
struct timeval tv;
int ticks;
char shortopt[] = "- ";
@@ -216,19 +201,17 @@ parse_timeout_to_pow2ns(char opt, const char *longopt, const char *myoptarg)
a = fetchtimeout(opt, longopt, myoptarg, 1);
if (a == 0)
- rv = WD_TO_NEVER;
+ rv = 0;
else
- rv = seconds_to_pow2ns(a);
- pow2ns_to_ts(rv, &ts);
- tstotv(&tv, &ts);
+ rv = a * SBT_1S;
+ tv = sbttotv(rv);
ticks = tvtohz(&tv);
if (debugging) {
printf("Timeout for %s%s "
- "is 2^%d nanoseconds "
- "(in: %s sec -> out: %jd sec %ld ns -> %d ticks)\n",
+ "is "
+ "(in: %s sec -> out: %jd sec %ld us -> %d ticks)\n",
longopt ? "-" : "", longopt ? longopt : shortopt,
- rv,
- myoptarg, (intmax_t)ts.tv_sec, ts.tv_nsec, ticks);
+ myoptarg, (intmax_t)tv.tv_sec, tv.tv_usec, ticks);
}
if (ticks <= 0) {
errx(1, "Timeout for %s%s is too small, please choose a higher timeout.", longopt ? "-" : "", longopt ? longopt : shortopt);
@@ -364,7 +347,7 @@ watchdog_loop(void)
}
if (failed == 0)
- watchdog_patpat(timeout|WD_ACTIVE);
+ watchdog_patpat(timeout);
waited = watchdog_check_dogfunction_time(&ts_start, &ts_end);
if (nap - waited > 0)
@@ -387,13 +370,22 @@ try_end:
* to keep the watchdog from firing.
*/
static int
-watchdog_patpat(u_int t)
+watchdog_patpat(sbintime_t sbt)
{
if (is_dry_run)
return 0;
- return ioctl(fd, WDIOCPATPAT, &t);
+ return ioctl(fd, WDIOC_SETTIMEOUT, &sbt);
+}
+
+static int
+watchdog_control(u_int control)
+{
+ if (is_dry_run)
+ return (0);
+
+ return ioctl(fd, WDIOC_CONTROL, &control);
}
/*
@@ -420,7 +412,7 @@ watchdog_onoff(int onoff)
warn("setting WDIOC_SETSOFT %d", softtimeout_set);
return (error);
}
- error = watchdog_patpat((timeout|WD_ACTIVE));
+ error = watchdog_patpat(timeout);
if (error) {
warn("watchdog_patpat failed");
goto failsafe;
@@ -452,12 +444,12 @@ watchdog_onoff(int onoff)
}
}
/* pat one more time for good measure */
- return watchdog_patpat((timeout|WD_ACTIVE));
+ return watchdog_patpat(timeout);
} else {
- return watchdog_patpat(exit_timeout);
+ return watchdog_control(WD_CTRL_DISABLE);
}
failsafe:
- watchdog_patpat(exit_timeout);
+ watchdog_control(WD_CTRL_DISABLE);
return (error);
}
@@ -567,15 +559,6 @@ timeout_act_str2int(const char *lopt, const char *acts)
return rv;
}
-int
-tstotv(struct timeval *tv, struct timespec *ts)
-{
-
- tv->tv_sec = ts->tv_sec;
- tv->tv_usec = ts->tv_nsec / 1000;
- return 0;
-}
-
/*
* Convert a timeval to a number of ticks.
* Mostly copied from the kernel.
@@ -647,30 +630,6 @@ tvtohz(struct timeval *tv)
return ((int)ticks);
}
-static int
-seconds_to_pow2ns(int seconds)
-{
- uint64_t power;
- uint64_t ns;
- uint64_t shifted;
-
- if (seconds <= 0)
- errx(1, "seconds %d < 0", seconds);
- ns = ((uint64_t)seconds) * 1000000000ULL;
- power = flsll(ns);
- shifted = 1ULL << power;
- if (shifted <= ns) {
- power++;
- }
- if (debugging) {
- printf("shifted %lld\n", (long long)shifted);
- printf("seconds_to_pow2ns: seconds: %d, ns %lld, power %d\n",
- seconds, (long long)ns, (int)power);
- }
- return (power);
-}
-
-
/*
* Handle the few command line arguments supported.
*/
@@ -683,8 +642,7 @@ parseargs(int argc, char *argv[])
const char *lopt;
/* Get the default value of timeout_sec from the default timeout. */
- pow2ns_to_ts(timeout, &ts);
- timeout_sec = ts.tv_sec;
+ timeout_sec = sbintime_getsec(timeout);
/*
* if we end with a 'd' aka 'watchdogd' then we are the daemon program,
@@ -727,10 +685,10 @@ parseargs(int argc, char *argv[])
break;
case 't':
timeout_sec = atoi(optarg);
- timeout = parse_timeout_to_pow2ns(c, NULL, optarg);
+ timeout = parse_timeout_to_sbt(c, NULL, optarg);
if (debugging)
- printf("Timeout is 2^%d nanoseconds\n",
- timeout);
+ printf("Timeout is %d\n",
+ (int)(timeout / SBT_1S));
break;
case 'T':
carp_thresh_seconds =
@@ -740,7 +698,7 @@ parseargs(int argc, char *argv[])
do_timedog = 1;
break;
case 'x':
- exit_timeout = parse_timeout_to_pow2ns(c, NULL, optarg);
+ exit_timeout = parse_timeout_to_sbt(c, NULL, optarg);
if (exit_timeout != 0)
exit_timeout |= WD_ACTIVE;
break;
generated by cgit v1.2.3 (git 2.25.1) at 2025-08-15 22:23:43 +0000