Drop non-management messages on the UDS port early in the processing to
prevent them from changing the port or clock state.
Signed-off-by: Miroslav Lichvar <mlich...@redhat.com>
---
port.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/port.c b/port.c
index 9be611c..2bb974c 100644
--- a/port.c
+++ b/port.c
@@ -56,6 +56,7 @@ enum syfu_event {
};
static int port_is_ieee8021as(struct port *p);
+static int port_is_uds(struct port *p);
static void port_nrate_initialize(struct port *p);
static int announce_compare(struct ptp_message *m1, struct ptp_message *m2)
@@ -691,6 +692,9 @@ static int port_ignore(struct port *p, struct ptp_message
*m)
{
struct ClockIdentity c1, c2;
+ if (port_is_uds(p) && msg_type(m) != MANAGEMENT) {
+ return 1;
+ }
if (incapable_ignore(p, m)) {
return 1;
}
--
2.26.2
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