ofproto: Implement OpenFlow extension to allow control over async messages.

[sliver-openvswitch.git] / lib / learning-switch.c

diff --git a/lib/learning-switch.c b/lib/learning-switch.c
index 6bd2286..435acb9 100644 (file)
--- a/lib/learning-switch.c
+++ b/lib/learning-switch.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008, 2009, 2010, 2011 Nicira Networks.
+ * Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira Networks.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -29,6 +29,7 @@
 #include "hmap.h"
 #include "mac-learning.h"
 #include "ofpbuf.h"
+#include "ofp-errors.h"
 #include "ofp-parse.h"
 #include "ofp-print.h"
 #include "ofp-util.h"
@@ -96,18 +97,28 @@ lswitch_create(struct rconn *rconn, const struct lswitch_config *cfg)
     sw->max_idle = cfg->max_idle;
     sw->datapath_id = 0;
     sw->last_features_request = time_now() - 1;
-    sw->ml = cfg->mode == LSW_LEARN ? mac_learning_create() : NULL;
+    sw->ml = (cfg->mode == LSW_LEARN
+              ? mac_learning_create(MAC_ENTRY_DEFAULT_IDLE_TIME)
+              : NULL);
     sw->action_normal = cfg->mode == LSW_NORMAL;
 
     flow_wildcards_init_exact(&sw->wc);
-    if (!cfg->exact_flows) {
-        /* We cannot wildcard all fields.
-         * We need in_port to detect moves.
-         * We need both SA and DA to do learning. */
-        sw->wc.wildcards = (FWW_DL_TYPE | FWW_NW_PROTO
-                            | FWW_TP_SRC | FWW_TP_DST);
-        sw->wc.nw_src_mask = htonl(0);
-        sw->wc.nw_dst_mask = htonl(0);
+    if (cfg->wildcards) {
+        uint32_t ofpfw;
+
+        if (cfg->wildcards == UINT32_MAX) {
+            /* Try to wildcard as many fields as possible, but we cannot
+             * wildcard all fields.  We need in_port to detect moves.  We need
+             * Ethernet source and dest and VLAN VID to do L2 learning. */
+            ofpfw = (OFPFW_DL_TYPE | OFPFW_DL_VLAN_PCP
+                     | OFPFW_NW_SRC_ALL | OFPFW_NW_DST_ALL
+                     | OFPFW_NW_TOS | OFPFW_NW_PROTO
+                     | OFPFW_TP_SRC | OFPFW_TP_DST);
+        } else {
+            ofpfw = cfg->wildcards;
+        }
+
+        ofputil_wildcard_from_openflow(ofpfw, &sw->wc);
     }
 
     sw->default_queue = cfg->default_queue;
@@ -131,10 +142,17 @@ lswitch_create(struct rconn *rconn, const struct lswitch_config *cfg)
         const struct ofpbuf *b;
 
         LIST_FOR_EACH (b, list_node, cfg->default_flows) {
-            queue_tx(sw, rconn, ofpbuf_clone(b));
+            struct ofpbuf *copy = ofpbuf_clone(b);
+            int error = rconn_send(rconn, copy, NULL);
+            if (error) {
+                VLOG_INFO_RL(&rl, "%s: failed to queue default flows (%s)",
+                             rconn_get_name(rconn), strerror(error));
+                ofpbuf_delete(copy);
+                break;
+            }
         }
     }
-    
+
     return sw;
 }
 
@@ -210,7 +228,7 @@ lswitch_process_packet(struct lswitch *sw, struct rconn *rconn,
         /* Nothing to do. */
         break;
 
-    case OFPUTIL_INVALID:
+    case OFPUTIL_MSG_INVALID:
     case OFPUTIL_OFPT_HELLO:
     case OFPUTIL_OFPT_ERROR:
     case OFPUTIL_OFPT_ECHO_REPLY:
@@ -242,8 +260,12 @@ lswitch_process_packet(struct lswitch *sw, struct rconn *rconn,
     case OFPUTIL_NXT_ROLE_REPLY:
     case OFPUTIL_NXT_FLOW_MOD_TABLE_ID:
     case OFPUTIL_NXT_SET_FLOW_FORMAT:
+    case OFPUTIL_NXT_SET_PACKET_IN_FORMAT:
+    case OFPUTIL_NXT_PACKET_IN:
     case OFPUTIL_NXT_FLOW_MOD:
     case OFPUTIL_NXT_FLOW_REMOVED:
+    case OFPUTIL_NXT_FLOW_AGE:
+    case OFPUTIL_NXT_SET_ASYNC_CONFIG:
     case OFPUTIL_NXST_FLOW_REQUEST:
     case OFPUTIL_NXST_AGGREGATE_REQUEST:
     case OFPUTIL_NXST_FLOW_REPLY:
@@ -389,6 +411,8 @@ process_packet_in(struct lswitch *sw, struct rconn *rconn,
     struct ofp_action_header actions[2];
     size_t actions_len;
 
+    struct ofputil_packet_out po;
+
     size_t pkt_ofs, pkt_len;
     struct ofpbuf pkt;
     struct flow flow;
@@ -404,7 +428,7 @@ process_packet_in(struct lswitch *sw, struct rconn *rconn,
     pkt_ofs = offsetof(struct ofp_packet_in, data);
     pkt_len = ntohs(opi->header.length) - pkt_ofs;
     ofpbuf_use_const(&pkt, opi->data, pkt_len);
-    flow_extract(&pkt, 0, in_port, &flow);
+    flow_extract(&pkt, 0, 0, in_port, &flow);
 
     /* Choose output port. */
     out_port = lswitch_choose_destination(sw, &flow);
@@ -437,6 +461,19 @@ process_packet_in(struct lswitch *sw, struct rconn *rconn,
     }
     assert(actions_len <= sizeof actions);
 
+    /* Prepare packet_out in case we need one. */
+    po.buffer_id = ntohl(opi->buffer_id);
+    if (po.buffer_id == UINT32_MAX) {
+        po.packet = pkt.data;
+        po.packet_len = pkt.size;
+    } else {
+        po.packet = NULL;
+        po.packet_len = 0;
+    }
+    po.in_port = in_port;
+    po.actions = (union ofp_action *) actions;
+    po.n_actions = actions_len / sizeof *actions;
+
     /* Send the packet, and possibly the whole flow, to the output port. */
     if (sw->max_idle >= 0 && (!sw->ml || out_port != OFPP_FLOOD)) {
         struct ofpbuf *buffer;
@@ -452,17 +489,13 @@ process_packet_in(struct lswitch *sw, struct rconn *rconn,
 
         /* If the switch didn't buffer the packet, we need to send a copy. */
         if (ntohl(opi->buffer_id) == UINT32_MAX && actions_len > 0) {
-            queue_tx(sw, rconn,
-                     make_packet_out(&pkt, UINT32_MAX, in_port,
-                                     actions, actions_len / sizeof *actions));
+            queue_tx(sw, rconn, ofputil_encode_packet_out(&po));
         }
     } else {
         /* We don't know that MAC, or we don't set up flows.  Send along the
          * packet without setting up a flow. */
         if (ntohl(opi->buffer_id) != UINT32_MAX || actions_len > 0) {
-            queue_tx(sw, rconn,
-                     make_packet_out(&pkt, ntohl(opi->buffer_id), in_port,
-                                     actions, actions_len / sizeof *actions));
+            queue_tx(sw, rconn, ofputil_encode_packet_out(&po));
         }
     }
 }