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-rw-r--r--networking/ntpd.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/networking/ntpd.c b/networking/ntpd.c
index 130cef0..8ca62cf 100644
--- a/networking/ntpd.c
+++ b/networking/ntpd.c
@@ -2051,6 +2051,13 @@ recv_and_process_client_pkt(void /*int fd*/)
goto bail;
}
+ /* Respond only to client and symmetric active packets */
+ if ((msg.m_status & MODE_MASK) != MODE_CLIENT
+ && (msg.m_status & MODE_MASK) != MODE_SYM_ACT
+ ) {
+ goto bail;
+ }
+
query_status = msg.m_status;
query_xmttime = msg.m_xmttime;