diff options
Diffstat (limited to 'src/timedated.c')
| -rw-r--r-- | src/timedated.c | 259 |
1 files changed, 258 insertions, 1 deletions
diff --git a/src/timedated.c b/src/timedated.c index 4bde0355a5..734538882f 100644 --- a/src/timedated.c +++ b/src/timedated.c @@ -37,6 +37,7 @@ " <interface name=\"org.freedesktop.timedate1\">\n" \ " <property name=\"Timezone\" type=\"s\" access=\"read\"/>\n" \ " <property name=\"LocalRTC\" type=\"b\" access=\"read\"/>\n" \ + " <property name=\"NTP\" type=\"b\" access=\"read\"/>\n" \ " <method name=\"SetTime\">\n" \ " <arg name=\"usec_utc\" type=\"x\" direction=\"in\"/>\n" \ " <arg name=\"relative\" type=\"b\" direction=\"in\"/>\n" \ @@ -51,6 +52,10 @@ " <arg name=\"fix_system\" type=\"b\" direction=\"in\"/>\n" \ " <arg name=\"user_interaction\" type=\"b\" direction=\"in\"/>\n" \ " </method>\n" \ + " <method name=\"SetNTP\">\n" \ + " <arg name=\"use_ntp\" type=\"b\" direction=\"in\"/>\n" \ + " <arg name=\"user_interaction\" type=\"b\" direction=\"in\"/>\n" \ + " </method>\n" \ " </interface>\n" #define INTROSPECTION \ @@ -70,6 +75,7 @@ const char timedate_interface[] _introspect_("timedate1") = INTERFACE; static char *zone = NULL; static bool local_rtc = false; +static int use_ntp = -1; static void free_data(void) { free(zone); @@ -271,6 +277,213 @@ static int write_data_local_rtc(void) { return r; } +static int read_ntp(DBusConnection *bus) { + DBusMessage *m = NULL, *reply = NULL; + const char *name = "ntpd.service", *s; + DBusError error; + int r; + + assert(bus); + + dbus_error_init(&error); + + m = dbus_message_new_method_call( + "org.freedesktop.systemd1", + "/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + "GetUnitFileState"); + + if (!m) { + log_error("Out of memory"); + r = -ENOMEM; + goto finish; + } + + if (!dbus_message_append_args(m, + DBUS_TYPE_STRING, &name, + DBUS_TYPE_INVALID)) { + log_error("Could not append arguments to message."); + r = -ENOMEM; + goto finish; + } + + reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error); + if (!reply) { + log_error("Failed to issue method call: %s", bus_error_message(&error)); + r = -EIO; + goto finish; + } + + if (!dbus_message_get_args(reply, &error, + DBUS_TYPE_STRING, &s, + DBUS_TYPE_INVALID)) { + log_error("Failed to parse reply: %s", bus_error_message(&error)); + r = -EIO; + goto finish; + } + + use_ntp = + streq(s, "enabled") || + streq(s, "enabled-runtime"); + r = 0; + +finish: + if (m) + dbus_message_unref(m); + + if (reply) + dbus_message_unref(reply); + + dbus_error_free(&error); + + return r; +} + +static int start_ntp(DBusConnection *bus, DBusError *error) { + DBusMessage *m = NULL, *reply = NULL; + const char *name = "ntpd.service", *mode = "replace"; + int r; + + assert(bus); + assert(error); + + m = dbus_message_new_method_call( + "org.freedesktop.systemd1", + "/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + use_ntp ? "StartUnit" : "StopUnit"); + if (!m) { + log_error("Could not allocate message."); + r = -ENOMEM; + goto finish; + } + + if (!dbus_message_append_args(m, + DBUS_TYPE_STRING, &name, + DBUS_TYPE_STRING, &mode, + DBUS_TYPE_INVALID)) { + log_error("Could not append arguments to message."); + r = -ENOMEM; + goto finish; + } + + reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error); + if (!reply) { + log_error("Failed to issue method call: %s", bus_error_message(error)); + r = -EIO; + goto finish; + } + + r = 0; + +finish: + if (m) + dbus_message_unref(m); + + if (reply) + dbus_message_unref(reply); + + return r; +} + +static int enable_ntp(DBusConnection *bus, DBusError *error) { + DBusMessage *m = NULL, *reply = NULL; + const char * const names[] = { "ntpd.service", NULL }; + int r; + DBusMessageIter iter; + dbus_bool_t f = FALSE, t = TRUE; + + assert(bus); + assert(error); + + m = dbus_message_new_method_call( + "org.freedesktop.systemd1", + "/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + use_ntp ? "EnableUnitFiles" : "DisableUnitFiles"); + + if (!m) { + log_error("Could not allocate message."); + r = -ENOMEM; + goto finish; + } + + dbus_message_iter_init_append(m, &iter); + + r = bus_append_strv_iter(&iter, (char**) names); + if (r < 0) { + log_error("Failed to append unit files."); + goto finish; + } + /* send runtime bool */ + if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &f)) { + log_error("Failed to append runtime boolean."); + r = -ENOMEM; + goto finish; + } + + if (use_ntp) { + /* send force bool */ + if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &t)) { + log_error("Failed to append force boolean."); + r = -ENOMEM; + goto finish; + } + } + + reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error); + if (!reply) { + log_error("Failed to issue method call: %s", bus_error_message(error)); + r = -EIO; + goto finish; + } + + dbus_message_unref(m); + m = dbus_message_new_method_call( + "org.freedesktop.systemd1", + "/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + "Reload"); + if (!m) { + log_error("Could not allocate message."); + r = -ENOMEM; + goto finish; + } + + dbus_message_unref(reply); + reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error); + if (!reply) { + log_error("Failed to issue method call: %s", bus_error_message(error)); + r = -EIO; + goto finish; + } + + r = 0; + +finish: + if (m) + dbus_message_unref(m); + + if (reply) + dbus_message_unref(reply); + + return r; +} + +static int property_append_ntp(DBusMessageIter *i, const char *property, void *data) { + dbus_bool_t db; + + assert(i); + assert(property); + + db = use_ntp > 0; + + if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &db)) + return -ENOMEM; + + return 0; +} + static DBusHandlerResult timedate_message_handler( DBusConnection *connection, DBusMessage *message, @@ -279,6 +492,7 @@ static DBusHandlerResult timedate_message_handler( const BusProperty properties[] = { { "org.freedesktop.timedate1", "Timezone", bus_property_append_string, "s", zone }, { "org.freedesktop.timedate1", "LocalRTC", bus_property_append_bool, "b", &local_rtc }, + { "org.freedesktop.timedate1", "NTP", property_append_ntp, "b", NULL }, { NULL, NULL, NULL, NULL, NULL } }; @@ -427,7 +641,7 @@ static DBusHandlerResult timedate_message_handler( hwclock_set_time(tm); } - log_error("RTC configured to %s time.", local_rtc ? "local" : "UTC"); + log_info("RTC configured to %s time.", local_rtc ? "local" : "UTC"); changed = bus_properties_changed_new( "/org/freedesktop/timedate1", @@ -483,6 +697,43 @@ static DBusHandlerResult timedate_message_handler( log_info("Changed local time to %s", ctime(&ts.tv_sec)); } + } else if (dbus_message_is_method_call(message, "org.freedesktop.timedate1", "SetNTP")) { + dbus_bool_t ntp; + dbus_bool_t interactive; + + if (!dbus_message_get_args( + message, + &error, + DBUS_TYPE_BOOLEAN, &ntp, + DBUS_TYPE_BOOLEAN, &interactive, + DBUS_TYPE_INVALID)) + return bus_send_error_reply(connection, message, &error, -EINVAL); + + if (ntp != !!use_ntp) { + + r = verify_polkit(connection, message, "org.freedesktop.timedate1.set-ntp", interactive, &error); + if (r < 0) + return bus_send_error_reply(connection, message, &error, r); + + use_ntp = !!ntp; + + r = enable_ntp(connection, &error); + if (r < 0) + return bus_send_error_reply(connection, message, &error, r); + + r = start_ntp(connection, &error); + if (r < 0) + return bus_send_error_reply(connection, message, &error, r); + + log_info("Set NTP to %s", use_ntp ? "enabled" : "disabled"); + + changed = bus_properties_changed_new( + "/org/freedesktop/timedate1", + "org.freedesktop.timedate1", + "NTP\0"); + if (!changed) + goto oom; + } } else return bus_default_message_handler(connection, message, INTROSPECTION, INTERFACES_LIST, properties); @@ -604,6 +855,12 @@ int main(int argc, char *argv[]) { if (r < 0) goto finish; + r = read_ntp(bus); + if (r < 0) { + log_error("Failed to determine whether NTP is enabled: %s", strerror(-r)); + goto finish; + } + while (dbus_connection_read_write_dispatch(bus, -1)) ; |