luci-mod-system: add button to sync with ntp server

Especially for systems without RTC this change has two advantages

* manual time sync with time server during configuration
* test possibility of the time sync over the configured servers

Signed-off-by: Florian Eckert <fe@dev.tdt.de>

1 files changed, 9 insertions, 0 deletions

diff --git a/modules/luci-mod-system/luasrc/controller/admin/system.lua b/modules/luci-mod-system/luasrc/controller/admin/system.lua
index 3e58896d63..49d4476c4e 100644
--- a/modules/luci-mod-system/luasrc/controller/admin/system.lua
+++ b/modules/luci-mod-system/luasrc/controller/admin/system.lua
@@ -9,6 +9,7 @@ function index()
 
 	entry({"admin", "system", "system"}, cbi("admin_system/system"), _("System"), 1)
 	entry({"admin", "system", "clock_status"}, post_on({ set = true }, "action_clock_status"))
+	entry({"admin", "system", "ntp_restart"}, call("action_ntp_restart"), nil).leaf = true
 
 	entry({"admin", "system", "admin"}, firstchild(), _("Administration"), 2)
 	entry({"admin", "system", "admin", "password"}, template("admin_system/password"), _("Router Password"), 1)
@@ -64,6 +65,14 @@ function action_clock_status()
 	luci.http.write_json({ timestring = os.date("%c") })
 end
 
+function action_ntp_restart()
+	if nixio.fs.access("/etc/init.d/sysntpd") then
+		os.execute("/etc/init.d/sysntpd restart")
+	end
+	luci.http.prepare_content("text/plain")
+	luci.http.write("0")
+end
+
 local function image_supported(image)
 	return (os.execute("sysupgrade -T %q >/dev/null" % image) == 0)
 end