Otherwise the command will time out after a while when there's no traffic,
which probably isn't what we want.
Reported-by: Henry Mai <h...@nicira.com>
Signed-off-by: Ben Pfaff <b...@nicira.com>
---
utilities/ovs-ofctl.c | 34 +++++++++++++++++++++++++++-------
1 file changed, 27 insertions(+), 7 deletions(-)
diff --git a/utilities/ovs-ofctl.c b/utilities/ovs-ofctl.c
index a67a554..4f7dbbf 100644
--- a/utilities/ovs-ofctl.c
+++ b/utilities/ovs-ofctl.c
@@ -1271,8 +1271,12 @@ ofctl_unblock(struct unixctl_conn *conn, int argc
OVS_UNUSED,
}
}
+/* Prints to stdout all of the messages received on 'vconn'.
+ *
+ * Iff 'reply_to_echo_requests' is true, sends a reply to any echo request
+ * received on 'vconn'. */
static void
-monitor_vconn(struct vconn *vconn)
+monitor_vconn(struct vconn *vconn, bool reply_to_echo_requests)
{
struct barrier_aux barrier_aux = { vconn, NULL };
struct unixctl_server *server;
@@ -1325,12 +1329,28 @@ monitor_vconn(struct vconn *vconn)
ofptype_decode(&type, b->data);
ofp_print(stderr, b->data, b->size, verbosity + 2);
- ofpbuf_delete(b);
- if (barrier_aux.conn && type == OFPTYPE_BARRIER_REPLY) {
- unixctl_command_reply(barrier_aux.conn, NULL);
- barrier_aux.conn = NULL;
+ switch ((int) type) {
+ case OFPTYPE_BARRIER_REPLY:
+ if (barrier_aux.conn) {
+ unixctl_command_reply(barrier_aux.conn, NULL);
+ barrier_aux.conn = NULL;
+ }
+ break;
+
+ case OFPTYPE_ECHO_REQUEST:
+ if (reply_to_echo_requests) {
+ struct ofpbuf *reply;
+
+ reply = make_echo_reply(b->data);
+ retval = vconn_send(vconn, reply);
+ if (retval && retval != EAGAIN) {
+ ovs_fatal(retval, "failed to send echo reply");
+ }
+ }
+ break;
}
+ ofpbuf_delete(b);
}
if (exiting) {
@@ -1400,7 +1420,7 @@ ofctl_monitor(int argc, char *argv[])
}
}
- monitor_vconn(vconn);
+ monitor_vconn(vconn, true);
}
static void
@@ -1409,7 +1429,7 @@ ofctl_snoop(int argc OVS_UNUSED, char *argv[])
struct vconn *vconn;
open_vconn__(argv[1], "snoop", &vconn);
- monitor_vconn(vconn);
+ monitor_vconn(vconn, false);
}
static void
--
1.7.10.4
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