Global replace of Nicira Networks.

[sliver-openvswitch.git] / lib / rconn.c

diff --git a/lib/rconn.c b/lib/rconn.c
index 1b69b8f..aa8b7e3 100644 (file)
--- a/lib/rconn.c
+++ b/lib/rconn.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008, 2009, 2010, 2011 Nicira Networks.
+ * Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -121,6 +121,7 @@ struct rconn {
      * attempt to the next. */
     ovs_be32 local_ip, remote_ip;
     ovs_be16 remote_port;
+    uint8_t dscp;
 
     /* Messages sent or received are copied to the monitor connections. */
 #define MAX_MONITORS 8
@@ -160,7 +161,7 @@ static bool rconn_logging_connection_attempts__(const struct rconn *);
  * The new rconn is initially unconnected.  Use rconn_connect() or
  * rconn_connect_unreliably() to connect it. */
 struct rconn *
-rconn_create(int probe_interval, int max_backoff)
+rconn_create(int probe_interval, int max_backoff, uint8_t dscp)
 {
     struct rconn *rc = xzalloc(sizeof *rc);
 
@@ -194,6 +195,7 @@ rconn_create(int probe_interval, int max_backoff)
     rc->total_time_connected = 0;
 
     rconn_set_probe_interval(rc, probe_interval);
+    rconn_set_dscp(rc, dscp);
 
     rc->n_monitors = 0;
 
@@ -218,6 +220,12 @@ rconn_get_max_backoff(const struct rconn *rc)
     return rc->max_backoff;
 }
 
+void
+rconn_set_dscp(struct rconn *rc, uint8_t dscp)
+{
+    rc->dscp = dscp;
+}
+
 void
 rconn_set_probe_interval(struct rconn *rc, int probe_interval)
 {
@@ -335,7 +343,7 @@ reconnect(struct rconn *rc)
         VLOG_INFO("%s: connecting...", rc->name);
     }
     rc->n_attempted_connections++;
-    retval = vconn_open(rc->target, OFP_VERSION, &rc->vconn);
+    retval = vconn_open(rc->target, OFP10_VERSION, &rc->vconn, rc->dscp);
     if (!retval) {
         rc->remote_ip = vconn_get_remote_ip(rc->vconn);
         rc->local_ip = vconn_get_local_ip(rc->vconn);
@@ -552,9 +560,8 @@ rconn_recv_wait(struct rconn *rc)
     }
 }
 
-/* Sends 'b' on 'rc'.  Returns 0 if successful (in which case 'b' is
- * destroyed), or ENOTCONN if 'rc' is not currently connected (in which case
- * the caller retains ownership of 'b').
+/* Sends 'b' on 'rc'.  Returns 0 if successful, or ENOTCONN if 'rc' is not
+ * currently connected.  Takes ownership of 'b'.
  *
  * If 'counter' is non-null, then 'counter' will be incremented while the
  * packet is in flight, then decremented when it has been sent (or discarded
@@ -587,6 +594,7 @@ rconn_send(struct rconn *rc, struct ofpbuf *b,
         }
         return 0;
     } else {
+        ofpbuf_delete(b);
         return ENOTCONN;
     }
 }
@@ -611,7 +619,6 @@ rconn_send_with_limit(struct rconn *rc, struct ofpbuf *b,
     retval = counter->n >= queue_limit ? EAGAIN : rconn_send(rc, b, counter);
     if (retval) {
         COVERAGE_INC(rconn_overflow);
-        ofpbuf_delete(b);
     }
     return retval;
 }
@@ -731,6 +738,14 @@ rconn_get_local_port(const struct rconn *rconn)
     return rconn->vconn ? vconn_get_local_port(rconn->vconn) : 0;
 }
 
+/* Returns the OpenFlow version negotiated with the peer, or -1 if there is
+ * currently no connection or if version negotiation is not yet complete. */
+int
+rconn_get_version(const struct rconn *rconn)
+{
+    return rconn->vconn ? vconn_get_version(rconn->vconn) : -1;
+}
+
 /* Returns the total number of packets successfully received by the underlying
  * vconn.  */
 unsigned int