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ec78fe20c8
The logging in this generic helper is unneeded and excessive. It can also be called a lot which spams the logger.
74 lines
1.9 KiB
Go
74 lines
1.9 KiB
Go
// -*- Mode: Go; indent-tabs-mode: t -*-
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/*
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* Copyright (C) 2021 Canonical Ltd
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 3 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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package timeutil
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import (
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"fmt"
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"github.com/godbus/dbus"
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"github.com/snapcore/snapd/dbusutil"
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)
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func isNoServiceOrUnknownPropertyDbusErr(err error) bool {
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derr, ok := err.(dbus.Error)
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if !ok {
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return false
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}
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switch derr.Name {
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case "org.freedesktop.DBus.Error.ServiceUnknown", "org.freedesktop.DBus.Error.UnknownProperty":
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return true
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}
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return false
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}
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type NoTimedate1Error struct {
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Err error
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}
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func (e NoTimedate1Error) Error() string {
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return fmt.Sprintf("cannot find org.freedesktop.timedate1 dbus service: %v", e.Err)
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}
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// IsNTPSynchronized returns true if the time is syncronized according to
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// systemd-timedated.
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func IsNTPSynchronized() (bool, error) {
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// shared connection, no need to close
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conn, err := dbusutil.SystemBus()
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if err != nil {
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return false, NoTimedate1Error{err}
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}
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tdObj := conn.Object("org.freedesktop.timedate1", "/org/freedesktop/timedate1")
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dbusV, err := tdObj.GetProperty("org.freedesktop.timedate1.NTPSynchronized")
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if err != nil {
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if isNoServiceOrUnknownPropertyDbusErr(err) {
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return false, NoTimedate1Error{err}
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}
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return false, fmt.Errorf("cannot check for ntp sync: %v", err)
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}
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v, ok := dbusV.Value().(bool)
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if !ok {
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return false, fmt.Errorf("timedate1 returned invalid value for NTPSynchronized property: %s", dbusV)
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}
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return v, nil
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}
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