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https://github.com/systemd/systemd
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systemctl: add service-watchdogs command
The rationale is the same as for log-level/log-target: this controls the behaviour of the manager, and belongs in systemctl.
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6962cf2e2a
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@ -1088,6 +1088,17 @@ Jan 12 10:46:45 example.com bluetoothd[8900]: gatt-time-server: Input/output err
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>).
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><command>service-watchdogs</command> [yes|no]</term>
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<listitem><para>If no argument is given, print the current state of service runtime watchdogs of
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the manager. If an optional boolean argument is provided, then globally enables or disables the
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service runtime watchdogs (<option>WatchdogSec=</option>) and emergency actions (e.g.
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<option>OnFailure=</option> or <option>StartLimitAction=</option>); see
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<citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
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The hardware watchdog is not affected by this setting.</para></listitem>
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</varlistentry>
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</variablelist>
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</refsect2>
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@ -2166,8 +2166,8 @@ static int service_watchdogs(int argc, char *argv[], void *userdata) {
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if (r < 0)
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return log_error_errno(r, "Failed to create bus connection: %m");
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/* get ServiceWatchdogs */
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if (argc == 1) {
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/* get ServiceWatchdogs */
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r = sd_bus_get_property_trivial(
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bus,
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"org.freedesktop.systemd1",
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@ -2182,28 +2182,25 @@ static int service_watchdogs(int argc, char *argv[], void *userdata) {
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printf("%s\n", yes_no(!!b));
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return 0;
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}
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} else {
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/* set ServiceWatchdogs */
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b = parse_boolean(argv[1]);
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if (b < 0)
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return log_error_errno(b, "Failed to parse service-watchdogs argument: %m");
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/* set ServiceWatchdogs */
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b = parse_boolean(argv[1]);
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if (b < 0) {
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log_error("Failed to parse service-watchdogs argument.");
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return -EINVAL;
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r = sd_bus_set_property(
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bus,
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"org.freedesktop.systemd1",
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"/org/freedesktop/systemd1",
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"org.freedesktop.systemd1.Manager",
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"ServiceWatchdogs",
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&error,
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"b",
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b);
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if (r < 0)
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return log_error_errno(r, "Failed to set service-watchdog state: %s", bus_error_message(&error, r));
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}
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r = sd_bus_set_property(
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bus,
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"org.freedesktop.systemd1",
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"/org/freedesktop/systemd1",
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"org.freedesktop.systemd1.Manager",
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"ServiceWatchdogs",
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&error,
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"b",
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b);
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if (r < 0)
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return log_error_errno(r, "Failed to set service-watchdog state: %s", bus_error_message(&error, r));
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return 0;
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}
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@ -6431,6 +6431,57 @@ static int log_target(int argc, char *argv[], void *userdata) {
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return 0;
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}
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static int service_watchdogs(int argc, char *argv[], void *userdata) {
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sd_bus *bus;
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_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
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int b, r;
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assert(argv);
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r = acquire_bus(BUS_MANAGER, &bus);
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if (r < 0)
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return r;
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if (argc == 1) {
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/* get ServiceWatchdogs */
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r = sd_bus_get_property_trivial(
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bus,
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"org.freedesktop.systemd1",
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"/org/freedesktop/systemd1",
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"org.freedesktop.systemd1.Manager",
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"ServiceWatchdogs",
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&error,
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'b',
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&b);
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if (r < 0)
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return log_error_errno(r, "Failed to get service-watchdog state: %s", bus_error_message(&error, r));
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printf("%s\n", yes_no(!!b));
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} else {
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/* set ServiceWatchdogs */
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assert(argc == 2);
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b = parse_boolean(argv[1]);
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if (b < 0)
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return log_error_errno(b, "Failed to parse service-watchdogs argument: %m");
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r = sd_bus_set_property(
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bus,
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"org.freedesktop.systemd1",
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"/org/freedesktop/systemd1",
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"org.freedesktop.systemd1.Manager",
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"ServiceWatchdogs",
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&error,
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"b",
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b);
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if (r < 0)
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return log_error_errno(r, "Failed to set service-watchdog state: %s", bus_error_message(&error, r));
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}
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return 0;
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}
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static int set_environment(int argc, char *argv[], void *userdata) {
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_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
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_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
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@ -7854,6 +7905,7 @@ static int systemctl_help(void) {
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" daemon-reexec Reexecute systemd manager\n"
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" log-level [LEVEL] Get/set logging threshold for manager\n"
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" log-target [TARGET] Get/set logging target for manager\n"
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" service-watchdogs [BOOL] Get/set service watchdog state\n"
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"\n%3$sSystem Commands:%4$s\n"
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" is-system-running Check whether system is fully running\n"
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" default Enter system default mode\n"
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@ -9078,6 +9130,7 @@ static int systemctl_main(int argc, char *argv[]) {
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{ "daemon-reexec", VERB_ANY, 1, VERB_ONLINE_ONLY, daemon_reload },
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{ "log-level", VERB_ANY, 2, 0, log_level },
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{ "log-target", VERB_ANY, 2, 0, log_target },
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{ "service-watchdogs", VERB_ANY, 2, 0, service_watchdogs },
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{ "show-environment", VERB_ANY, 1, VERB_ONLINE_ONLY, show_environment },
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{ "set-environment", 2, VERB_ANY, VERB_ONLINE_ONLY, set_environment },
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{ "unset-environment", 2, VERB_ANY, VERB_ONLINE_ONLY, set_environment },
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