From: Miroslav Lichvar <mlichvar@redhat.com>
Date: Wed, 27 Aug 2014 14:47:17 +0000 (+0200)
Subject: timesyncd: check if stratum is valid
X-Git-Tag: v217~709
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=07610e108e2d3f046da683a3a69c4d5cccd2cf8e;hp=6ff8806e1d20a4d3cbc4b360326ea3786768f0ca

timesyncd: check if stratum is valid
---

diff --git a/src/timesync/timesyncd-manager.c b/src/timesync/timesyncd-manager.c
index d80c72ff5..60f39c638 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);
         }