From 07610e108e2d3f046da683a3a69c4d5cccd2cf8e Mon Sep 17 00:00:00 2001 From: Miroslav Lichvar Date: Wed, 27 Aug 2014 16:47:17 +0200 Subject: [PATCH] timesyncd: check if stratum is valid --- src/timesync/timesyncd-manager.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/timesync/timesyncd-manager.c b/src/timesync/timesyncd-manager.c index d80c72ff5c..60f39c638d 100644 --- a/src/timesync/timesyncd-manager.c +++ b/src/timesync/timesyncd-manager.c @@ -574,7 +574,8 @@ static int manager_receive_response(sd_event_source *source, int fd, uint32_t re return manager_connect(m); } - if (NTP_FIELD_LEAP(ntpmsg.field) == NTP_LEAP_NOTINSYNC) { + if (NTP_FIELD_LEAP(ntpmsg.field) == NTP_LEAP_NOTINSYNC || + ntpmsg.stratum == 0 || ntpmsg.stratum >= 16) { log_debug("Server is not synchronized. Disconnecting."); return manager_connect(m); }