flow: New function hash_ofp_port() and hash_ofp_port().
[sliver-openvswitch.git] / ofproto / ofproto.c
index 9b235e9..5e6a252 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2009, 2010, 2011, 2012 Nicira, Inc.
+ * Copyright (c) 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
  * Copyright (c) 2010 Jean Tourrilhes - HP-Labs.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -199,10 +199,12 @@ static enum ofperr add_flow(struct ofproto *, struct ofconn *,
                             const struct ofputil_flow_mod *,
                             const struct ofp_header *);
 static void delete_flow__(struct rule *, struct ofopgroup *);
-static bool handle_openflow(struct ofconn *, struct ofpbuf *);
+static bool handle_openflow(struct ofconn *, const struct ofpbuf *);
 static enum ofperr handle_flow_mod__(struct ofproto *, struct ofconn *,
                                      const struct ofputil_flow_mod *,
                                      const struct ofp_header *);
+static void calc_duration(long long int start, long long int now,
+                          uint32_t *sec, uint32_t *nsec);
 
 /* ofproto. */
 static uint64_t pick_datapath_id(const struct ofproto *);
@@ -218,19 +220,51 @@ static const struct ofproto_class **ofproto_classes;
 static size_t n_ofproto_classes;
 static size_t allocated_ofproto_classes;
 
+unsigned flow_eviction_threshold = OFPROTO_FLOW_EVICTION_THRESHOLD_DEFAULT;
+
 /* Map from datapath name to struct ofproto, for use by unixctl commands. */
 static struct hmap all_ofprotos = HMAP_INITIALIZER(&all_ofprotos);
 
+/* Initial mappings of port to OpenFlow number mappings. */
+static struct shash init_ofp_ports = SHASH_INITIALIZER(&init_ofp_ports);
+
 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
 
-static void
-ofproto_initialize(void)
+/* The default value of true waits for flow restore. */
+static bool flow_restore_wait = true;
+
+/* Must be called to initialize the ofproto library.
+ *
+ * The caller may pass in 'iface_hints', which contains an shash of
+ * "iface_hint" elements indexed by the interface's name.  The provider
+ * may use these hints to describe the startup configuration in order to
+ * reinitialize its state.  The caller owns the provided data, so a
+ * provider will make copies of anything required.  An ofproto provider
+ * will remove any existing state that is not described by the hint, and
+ * may choose to remove it all. */
+void
+ofproto_init(const struct shash *iface_hints)
 {
-    static bool inited;
+    struct shash_node *node;
+    size_t i;
+
+    ofproto_class_register(&ofproto_dpif_class);
+
+    /* Make a local copy, since we don't own 'iface_hints' elements. */
+    SHASH_FOR_EACH(node, iface_hints) {
+        const struct iface_hint *orig_hint = node->data;
+        struct iface_hint *new_hint = xmalloc(sizeof *new_hint);
+        const char *br_type = ofproto_normalize_type(orig_hint->br_type);
+
+        new_hint->br_name = xstrdup(orig_hint->br_name);
+        new_hint->br_type = xstrdup(br_type);
+        new_hint->ofp_port = orig_hint->ofp_port;
 
-    if (!inited) {
-        inited = true;
-        ofproto_class_register(&ofproto_dpif_class);
+        shash_add(&init_ofp_ports, node->name, new_hint);
+    }
+
+    for (i = 0; i < n_ofproto_classes; i++) {
+        ofproto_classes[i]->init(&init_ofp_ports);
     }
 }
 
@@ -242,7 +276,6 @@ ofproto_class_find__(const char *type)
 {
     size_t i;
 
-    ofproto_initialize();
     for (i = 0; i < n_ofproto_classes; i++) {
         const struct ofproto_class *class = ofproto_classes[i];
         struct sset types;
@@ -313,7 +346,6 @@ ofproto_enumerate_types(struct sset *types)
 {
     size_t i;
 
-    ofproto_initialize();
     for (i = 0; i < n_ofproto_classes; i++) {
         ofproto_classes[i]->enumerate_types(types);
     }
@@ -349,10 +381,10 @@ ofproto_create(const char *datapath_name, const char *datapath_type,
     const struct ofproto_class *class;
     struct ofproto *ofproto;
     int error;
+    int i;
 
     *ofprotop = NULL;
 
-    ofproto_initialize();
     ofproto_unixctl_init();
 
     datapath_type = ofproto_normalize_type(datapath_type);
@@ -378,21 +410,22 @@ ofproto_create(const char *datapath_name, const char *datapath_type,
     hmap_insert(&all_ofprotos, &ofproto->hmap_node,
                 hash_string(ofproto->name, 0));
     ofproto->datapath_id = 0;
-    ofproto_set_flow_eviction_threshold(ofproto,
-                                        OFPROTO_FLOW_EVICTON_THRESHOLD_DEFAULT);
     ofproto->forward_bpdu = false;
     ofproto->fallback_dpid = pick_fallback_dpid();
-    ofproto->mfr_desc = xstrdup(DEFAULT_MFR_DESC);
-    ofproto->hw_desc = xstrdup(DEFAULT_HW_DESC);
-    ofproto->sw_desc = xstrdup(DEFAULT_SW_DESC);
-    ofproto->serial_desc = xstrdup(DEFAULT_SERIAL_DESC);
-    ofproto->dp_desc = xstrdup(DEFAULT_DP_DESC);
+    ofproto->mfr_desc = NULL;
+    ofproto->hw_desc = NULL;
+    ofproto->sw_desc = NULL;
+    ofproto->serial_desc = NULL;
+    ofproto->dp_desc = NULL;
     ofproto->frag_handling = OFPC_FRAG_NORMAL;
     hmap_init(&ofproto->ports);
     shash_init(&ofproto->port_by_name);
+    simap_init(&ofproto->ofp_requests);
     ofproto->max_ports = OFPP_MAX;
     ofproto->tables = NULL;
     ofproto->n_tables = 0;
+    hindex_init(&ofproto->cookies);
+    list_init(&ofproto->expirable);
     ofproto->connmgr = connmgr_create(ofproto, datapath_name, datapath_name);
     ofproto->state = S_OPENFLOW;
     list_init(&ofproto->pending);
@@ -414,7 +447,19 @@ ofproto_create(const char *datapath_name, const char *datapath_type,
         return error;
     }
 
-    assert(ofproto->n_tables);
+    /* The "max_ports" member should have been set by ->construct(ofproto).
+     * Port 0 is not a valid OpenFlow port, so mark that as unavailable. */
+    ofproto->ofp_port_ids = bitmap_allocate(ofp_to_u16(ofproto->max_ports));
+    bitmap_set1(ofproto->ofp_port_ids, 0);
+
+    /* Check that hidden tables, if any, are at the end. */
+    ovs_assert(ofproto->n_tables);
+    for (i = 0; i + 1 < ofproto->n_tables; i++) {
+        enum oftable_flags flags = ofproto->tables[i].flags;
+        enum oftable_flags next_flags = ofproto->tables[i + 1].flags;
+
+        ovs_assert(!(flags & OFTABLE_HIDDEN) || next_flags & OFTABLE_HIDDEN);
+    }
 
     ofproto->datapath_id = pick_datapath_id(ofproto);
     init_ports(ofproto);
@@ -431,8 +476,8 @@ ofproto_init_tables(struct ofproto *ofproto, int n_tables)
 {
     struct oftable *table;
 
-    assert(!ofproto->n_tables);
-    assert(n_tables >= 1 && n_tables <= 255);
+    ovs_assert(!ofproto->n_tables);
+    ovs_assert(n_tables >= 1 && n_tables <= 255);
 
     ofproto->n_tables = n_tables;
     ofproto->tables = xmalloc(n_tables * sizeof *ofproto->tables);
@@ -453,9 +498,9 @@ ofproto_init_tables(struct ofproto *ofproto, int n_tables)
  * Reserved ports numbered OFPP_MAX and higher are special and not subject to
  * the 'max_ports' restriction. */
 void
-ofproto_init_max_ports(struct ofproto *ofproto, uint16_t max_ports)
+ofproto_init_max_ports(struct ofproto *ofproto, ofp_port_t max_ports)
 {
-    assert(max_ports <= OFPP_MAX);
+    ovs_assert(ofp_to_u16(max_ports) <= ofp_to_u16(OFPP_MAX));
     ofproto->max_ports = max_ports;
 }
 
@@ -480,9 +525,10 @@ ofproto_set_datapath_id(struct ofproto *p, uint64_t datapath_id)
 void
 ofproto_set_controllers(struct ofproto *p,
                         const struct ofproto_controller *controllers,
-                        size_t n_controllers)
+                        size_t n_controllers, uint32_t allowed_versions)
 {
-    connmgr_set_controllers(p->connmgr, controllers, n_controllers);
+    connmgr_set_controllers(p->connmgr, controllers, n_controllers,
+                            allowed_versions);
 }
 
 void
@@ -521,13 +567,10 @@ ofproto_set_in_band_queue(struct ofproto *ofproto, int queue_id)
 /* Sets the number of flows at which eviction from the kernel flow table
  * will occur. */
 void
-ofproto_set_flow_eviction_threshold(struct ofproto *ofproto, unsigned threshold)
+ofproto_set_flow_eviction_threshold(unsigned threshold)
 {
-    if (threshold < OFPROTO_FLOW_EVICTION_THRESHOLD_MIN) {
-        ofproto->flow_eviction_threshold = OFPROTO_FLOW_EVICTION_THRESHOLD_MIN;
-    } else {
-        ofproto->flow_eviction_threshold = threshold;
-    }
+    flow_eviction_threshold = MAX(OFPROTO_FLOW_EVICTION_THRESHOLD_MIN,
+                                  threshold);
 }
 
 /* If forward_bpdu is true, the NORMAL action will forward frames with
@@ -546,63 +589,23 @@ ofproto_set_forward_bpdu(struct ofproto *ofproto, bool forward_bpdu)
 }
 
 /* Sets the MAC aging timeout for the OFPP_NORMAL action on 'ofproto' to
- * 'idle_time', in seconds. */
+ * 'idle_time', in seconds, and the maximum number of MAC table entries to
+ * 'max_entries'. */
 void
-ofproto_set_mac_idle_time(struct ofproto *ofproto, unsigned idle_time)
+ofproto_set_mac_table_config(struct ofproto *ofproto, unsigned idle_time,
+                             size_t max_entries)
 {
-    if (ofproto->ofproto_class->set_mac_idle_time) {
-        ofproto->ofproto_class->set_mac_idle_time(ofproto, idle_time);
+    if (ofproto->ofproto_class->set_mac_table_config) {
+        ofproto->ofproto_class->set_mac_table_config(ofproto, idle_time,
+                                                     max_entries);
     }
 }
 
 void
-ofproto_set_desc(struct ofproto *p,
-                 const char *mfr_desc, const char *hw_desc,
-                 const char *sw_desc, const char *serial_desc,
-                 const char *dp_desc)
+ofproto_set_dp_desc(struct ofproto *p, const char *dp_desc)
 {
-    struct ofp_desc_stats *ods;
-
-    if (mfr_desc) {
-        if (strlen(mfr_desc) >= sizeof ods->mfr_desc) {
-            VLOG_WARN("%s: truncating mfr_desc, must be less than %zu bytes",
-                      p->name, sizeof ods->mfr_desc);
-        }
-        free(p->mfr_desc);
-        p->mfr_desc = xstrdup(mfr_desc);
-    }
-    if (hw_desc) {
-        if (strlen(hw_desc) >= sizeof ods->hw_desc) {
-            VLOG_WARN("%s: truncating hw_desc, must be less than %zu bytes",
-                      p->name, sizeof ods->hw_desc);
-        }
-        free(p->hw_desc);
-        p->hw_desc = xstrdup(hw_desc);
-    }
-    if (sw_desc) {
-        if (strlen(sw_desc) >= sizeof ods->sw_desc) {
-            VLOG_WARN("%s: truncating sw_desc, must be less than %zu bytes",
-                      p->name, sizeof ods->sw_desc);
-        }
-        free(p->sw_desc);
-        p->sw_desc = xstrdup(sw_desc);
-    }
-    if (serial_desc) {
-        if (strlen(serial_desc) >= sizeof ods->serial_num) {
-            VLOG_WARN("%s: truncating serial_desc, must be less than %zu "
-                      "bytes", p->name, sizeof ods->serial_num);
-        }
-        free(p->serial_desc);
-        p->serial_desc = xstrdup(serial_desc);
-    }
-    if (dp_desc) {
-        if (strlen(dp_desc) >= sizeof ods->dp_desc) {
-            VLOG_WARN("%s: truncating dp_desc, must be less than %zu bytes",
-                      p->name, sizeof ods->dp_desc);
-        }
-        free(p->dp_desc);
-        p->dp_desc = xstrdup(dp_desc);
-    }
+    free(p->dp_desc);
+    p->dp_desc = dp_desc ? xstrdup(dp_desc) : NULL;
 }
 
 int
@@ -640,6 +643,32 @@ ofproto_set_sflow(struct ofproto *ofproto,
         return oso ? EOPNOTSUPP : 0;
     }
 }
+
+int
+ofproto_set_ipfix(struct ofproto *ofproto,
+                  const struct ofproto_ipfix_bridge_exporter_options *bo,
+                  const struct ofproto_ipfix_flow_exporter_options *fo,
+                  size_t n_fo)
+{
+    if (ofproto->ofproto_class->set_ipfix) {
+        return ofproto->ofproto_class->set_ipfix(ofproto, bo, fo, n_fo);
+    } else {
+        return (bo || fo) ? EOPNOTSUPP : 0;
+    }
+}
+
+void
+ofproto_set_flow_restore_wait(bool flow_restore_wait_db)
+{
+    flow_restore_wait = flow_restore_wait_db;
+}
+
+bool
+ofproto_get_flow_restore_wait(void)
+{
+    return flow_restore_wait;
+}
+
 \f
 /* Spanning Tree Protocol (STP) configuration. */
 
@@ -678,7 +707,7 @@ ofproto_get_stp_status(struct ofproto *ofproto,
  *
  * Returns 0 if successful, otherwise a positive errno value.*/
 int
-ofproto_port_set_stp(struct ofproto *ofproto, uint16_t ofp_port,
+ofproto_port_set_stp(struct ofproto *ofproto, ofp_port_t ofp_port,
                      const struct ofproto_port_stp_settings *s)
 {
     struct ofport *ofport = ofproto_get_port(ofproto, ofp_port);
@@ -699,7 +728,7 @@ ofproto_port_set_stp(struct ofproto *ofproto, uint16_t ofp_port,
  *
  * Returns 0 if successful, otherwise a positive errno value.*/
 int
-ofproto_port_get_stp_status(struct ofproto *ofproto, uint16_t ofp_port,
+ofproto_port_get_stp_status(struct ofproto *ofproto, ofp_port_t ofp_port,
                             struct ofproto_port_stp_status *s)
 {
     struct ofport *ofport = ofproto_get_port(ofproto, ofp_port);
@@ -724,7 +753,7 @@ ofproto_port_get_stp_status(struct ofproto *ofproto, uint16_t ofp_port,
  *
  * Returns 0 if successful, otherwise a positive errno value. */
 int
-ofproto_port_set_queues(struct ofproto *ofproto, uint16_t ofp_port,
+ofproto_port_set_queues(struct ofproto *ofproto, ofp_port_t ofp_port,
                         const struct ofproto_port_queue *queues,
                         size_t n_queues)
 {
@@ -745,7 +774,7 @@ ofproto_port_set_queues(struct ofproto *ofproto, uint16_t ofp_port,
 
 /* Clears the CFM configuration from 'ofp_port' on 'ofproto'. */
 void
-ofproto_port_clear_cfm(struct ofproto *ofproto, uint16_t ofp_port)
+ofproto_port_clear_cfm(struct ofproto *ofproto, ofp_port_t ofp_port)
 {
     struct ofport *ofport = ofproto_get_port(ofproto, ofp_port);
     if (ofport && ofproto->ofproto_class->set_cfm) {
@@ -760,7 +789,7 @@ ofproto_port_clear_cfm(struct ofproto *ofproto, uint16_t ofp_port)
  *
  * This function has no effect if 'ofproto' does not have a port 'ofp_port'. */
 void
-ofproto_port_set_cfm(struct ofproto *ofproto, uint16_t ofp_port,
+ofproto_port_set_cfm(struct ofproto *ofproto, ofp_port_t ofp_port,
                      const struct cfm_settings *s)
 {
     struct ofport *ofport;
@@ -786,12 +815,52 @@ ofproto_port_set_cfm(struct ofproto *ofproto, uint16_t ofp_port,
     }
 }
 
+/* Configures BFD on 'ofp_port' in 'ofproto'.  This function has no effect if
+ * 'ofproto' does not have a port 'ofp_port'. */
+void
+ofproto_port_set_bfd(struct ofproto *ofproto, ofp_port_t ofp_port,
+                     const struct smap *cfg)
+{
+    struct ofport *ofport;
+    int error;
+
+    ofport = ofproto_get_port(ofproto, ofp_port);
+    if (!ofport) {
+        VLOG_WARN("%s: cannot configure bfd on nonexistent port %"PRIu16,
+                  ofproto->name, ofp_port);
+        return;
+    }
+
+    error = (ofproto->ofproto_class->set_bfd
+             ? ofproto->ofproto_class->set_bfd(ofport, cfg)
+             : EOPNOTSUPP);
+    if (error) {
+        VLOG_WARN("%s: bfd configuration on port %"PRIu16" (%s) failed (%s)",
+                  ofproto->name, ofp_port, netdev_get_name(ofport->netdev),
+                  strerror(error));
+    }
+}
+
+/* Populates 'status' with key value pairs indicating the status of the BFD
+ * session on 'ofp_port'.  This information is intended to be populated in the
+ * OVS database.  Has no effect if 'ofp_port' is not na OpenFlow port in
+ * 'ofproto'. */
+int
+ofproto_port_get_bfd_status(struct ofproto *ofproto, ofp_port_t ofp_port,
+                            struct smap *status)
+{
+    struct ofport *ofport = ofproto_get_port(ofproto, ofp_port);
+    return (ofport && ofproto->ofproto_class->get_bfd_status
+            ? ofproto->ofproto_class->get_bfd_status(ofport, status)
+            : EOPNOTSUPP);
+}
+
 /* Checks the status of LACP negotiation for 'ofp_port' within ofproto.
  * Returns 1 if LACP partner information for 'ofp_port' is up-to-date,
  * 0 if LACP partner information is not current (generally indicating a
  * connectivity problem), or -1 if LACP is not enabled on 'ofp_port'. */
 int
-ofproto_port_is_lacp_current(struct ofproto *ofproto, uint16_t ofp_port)
+ofproto_port_is_lacp_current(struct ofproto *ofproto, ofp_port_t ofp_port)
 {
     struct ofport *ofport = ofproto_get_port(ofproto, ofp_port);
     return (ofport && ofproto->ofproto_class->port_is_lacp_current
@@ -911,7 +980,7 @@ ofproto_configure_table(struct ofproto *ofproto, int table_id,
 {
     struct oftable *table;
 
-    assert(table_id >= 0 && table_id < ofproto->n_tables);
+    ovs_assert(table_id >= 0 && table_id < ofproto->n_tables);
     table = &ofproto->tables[table_id];
 
     oftable_set_name(table, s->name);
@@ -993,8 +1062,8 @@ ofproto_destroy__(struct ofproto *ofproto)
 {
     struct oftable *table;
 
-    assert(list_is_empty(&ofproto->pending));
-    assert(!ofproto->n_pending);
+    ovs_assert(list_is_empty(&ofproto->pending));
+    ovs_assert(!ofproto->n_pending);
 
     connmgr_destroy(ofproto->connmgr);
 
@@ -1008,6 +1077,8 @@ ofproto_destroy__(struct ofproto *ofproto)
     free(ofproto->dp_desc);
     hmap_destroy(&ofproto->ports);
     shash_destroy(&ofproto->port_by_name);
+    bitmap_free(ofproto->ofp_port_ids);
+    simap_destroy(&ofproto->ofp_requests);
 
     OFPROTO_FOR_EACH_TABLE (table, ofproto) {
         oftable_destroy(table);
@@ -1065,6 +1136,53 @@ process_port_change(struct ofproto *ofproto, int error, char *devname)
     }
 }
 
+int
+ofproto_type_run(const char *datapath_type)
+{
+    const struct ofproto_class *class;
+    int error;
+
+    datapath_type = ofproto_normalize_type(datapath_type);
+    class = ofproto_class_find__(datapath_type);
+
+    error = class->type_run ? class->type_run(datapath_type) : 0;
+    if (error && error != EAGAIN) {
+        VLOG_ERR_RL(&rl, "%s: type_run failed (%s)",
+                    datapath_type, strerror(error));
+    }
+    return error;
+}
+
+int
+ofproto_type_run_fast(const char *datapath_type)
+{
+    const struct ofproto_class *class;
+    int error;
+
+    datapath_type = ofproto_normalize_type(datapath_type);
+    class = ofproto_class_find__(datapath_type);
+
+    error = class->type_run_fast ? class->type_run_fast(datapath_type) : 0;
+    if (error && error != EAGAIN) {
+        VLOG_ERR_RL(&rl, "%s: type_run_fast failed (%s)",
+                    datapath_type, strerror(error));
+    }
+    return error;
+}
+
+void
+ofproto_type_wait(const char *datapath_type)
+{
+    const struct ofproto_class *class;
+
+    datapath_type = ofproto_normalize_type(datapath_type);
+    class = ofproto_class_find__(datapath_type);
+
+    if (class->type_wait) {
+        class->type_wait(datapath_type);
+    }
+}
+
 int
 ofproto_run(struct ofproto *p)
 {
@@ -1345,23 +1463,60 @@ ofproto_port_dump_done(struct ofproto_port_dump *dump)
     return dump->error == EOF ? 0 : dump->error;
 }
 
-/* Attempts to add 'netdev' as a port on 'ofproto'.  If successful, returns 0
- * and sets '*ofp_portp' to the new port's OpenFlow port number (if 'ofp_portp'
- * is non-null).  On failure, returns a positive errno value and sets
- * '*ofp_portp' to OFPP_NONE (if 'ofp_portp' is non-null). */
+/* Returns the type to pass to netdev_open() when a datapath of type
+ * 'datapath_type' has a port of type 'port_type', for a few special
+ * cases when a netdev type differs from a port type.  For example, when
+ * using the userspace datapath, a port of type "internal" needs to be
+ * opened as "tap".
+ *
+ * Returns either 'type' itself or a string literal, which must not be
+ * freed. */
+const char *
+ofproto_port_open_type(const char *datapath_type, const char *port_type)
+{
+    const struct ofproto_class *class;
+
+    datapath_type = ofproto_normalize_type(datapath_type);
+    class = ofproto_class_find__(datapath_type);
+    if (!class) {
+        return port_type;
+    }
+
+    return (class->port_open_type
+            ? class->port_open_type(datapath_type, port_type)
+            : port_type);
+}
+
+/* Attempts to add 'netdev' as a port on 'ofproto'.  If 'ofp_portp' is
+ * non-null and '*ofp_portp' is not OFPP_NONE, attempts to use that as
+ * the port's OpenFlow port number.
+ *
+ * If successful, returns 0 and sets '*ofp_portp' to the new port's
+ * OpenFlow port number (if 'ofp_portp' is non-null).  On failure,
+ * returns a positive errno value and sets '*ofp_portp' to OFPP_NONE (if
+ * 'ofp_portp' is non-null). */
 int
 ofproto_port_add(struct ofproto *ofproto, struct netdev *netdev,
-                 uint16_t *ofp_portp)
+                 ofp_port_t *ofp_portp)
 {
-    uint16_t ofp_port;
+    ofp_port_t ofp_port = ofp_portp ? *ofp_portp : OFPP_NONE;
     int error;
 
-    error = ofproto->ofproto_class->port_add(ofproto, netdev, &ofp_port);
+    error = ofproto->ofproto_class->port_add(ofproto, netdev);
     if (!error) {
-        update_port(ofproto, netdev_get_name(netdev));
+        const char *netdev_name = netdev_get_name(netdev);
+
+        simap_put(&ofproto->ofp_requests, netdev_name,
+                  ofp_to_u16(ofp_port));
+        update_port(ofproto, netdev_name);
     }
     if (ofp_portp) {
-        *ofp_portp = error ? OFPP_NONE : ofp_port;
+        struct ofproto_port ofproto_port;
+
+        ofproto_port_query_by_name(ofproto, netdev_get_name(netdev),
+                                   &ofproto_port);
+        *ofp_portp = error ? OFPP_NONE : ofproto_port.ofp_port;
+        ofproto_port_destroy(&ofproto_port);
     }
     return error;
 }
@@ -1388,12 +1543,18 @@ ofproto_port_query_by_name(const struct ofproto *ofproto, const char *devname,
 /* Deletes port number 'ofp_port' from the datapath for 'ofproto'.
  * Returns 0 if successful, otherwise a positive errno. */
 int
-ofproto_port_del(struct ofproto *ofproto, uint16_t ofp_port)
+ofproto_port_del(struct ofproto *ofproto, ofp_port_t ofp_port)
 {
     struct ofport *ofport = ofproto_get_port(ofproto, ofp_port);
     const char *name = ofport ? netdev_get_name(ofport->netdev) : "<unknown>";
+    struct simap_node *ofp_request_node;
     int error;
 
+    ofp_request_node = simap_find(&ofproto->ofp_requests, name);
+    if (ofp_request_node) {
+        simap_delete(&ofproto->ofp_requests, ofp_request_node);
+    }
+
     error = ofproto->ofproto_class->port_del(ofproto, ofp_port);
     if (!error && ofport) {
         /* 'name' is the netdev's name and update_port() is going to close the
@@ -1519,12 +1680,57 @@ reinit_ports(struct ofproto *p)
     sset_destroy(&devnames);
 }
 
+static ofp_port_t
+alloc_ofp_port(struct ofproto *ofproto, const char *netdev_name)
+{
+    uint16_t max_ports = ofp_to_u16(ofproto->max_ports);
+    uint16_t port_idx;
+
+    port_idx = simap_get(&ofproto->ofp_requests, netdev_name);
+    if (!port_idx) {
+        port_idx = UINT16_MAX;
+    }
+
+    if (port_idx >= max_ports
+        || bitmap_is_set(ofproto->ofp_port_ids, port_idx)) {
+        uint16_t end_port_no = ofp_to_u16(ofproto->alloc_port_no);
+        uint16_t alloc_port_no = end_port_no;
+
+        /* Search for a free OpenFlow port number.  We try not to
+         * immediately reuse them to prevent problems due to old
+         * flows. */
+        for (;;) {
+            if (++alloc_port_no >= max_ports) {
+                alloc_port_no = 0;
+            }
+            if (!bitmap_is_set(ofproto->ofp_port_ids, alloc_port_no)) {
+                port_idx = alloc_port_no;
+                ofproto->alloc_port_no = u16_to_ofp(alloc_port_no);
+                break;
+            }
+            if (alloc_port_no == end_port_no) {
+                return OFPP_NONE;
+            }
+        }
+    }
+    bitmap_set1(ofproto->ofp_port_ids, port_idx);
+    return u16_to_ofp(port_idx);
+}
+
+static void
+dealloc_ofp_port(const struct ofproto *ofproto, ofp_port_t ofp_port)
+{
+    if (ofp_to_u16(ofp_port) < ofp_to_u16(ofproto->max_ports)) {
+        bitmap_set0(ofproto->ofp_port_ids, ofp_to_u16(ofp_port));
+    }
+}
+
 /* Opens and returns a netdev for 'ofproto_port' in 'ofproto', or a null
  * pointer if the netdev cannot be opened.  On success, also fills in
  * 'opp'.  */
 static struct netdev *
-ofport_open(const struct ofproto *ofproto,
-            const struct ofproto_port *ofproto_port,
+ofport_open(struct ofproto *ofproto,
+            struct ofproto_port *ofproto_port,
             struct ofputil_phy_port *pp)
 {
     enum netdev_flags flags;
@@ -1541,6 +1747,14 @@ ofport_open(const struct ofproto *ofproto,
         return NULL;
     }
 
+    if (ofproto_port->ofp_port == OFPP_NONE) {
+        if (!strcmp(ofproto->name, ofproto_port->name)) {
+            ofproto_port->ofp_port = OFPP_LOCAL;
+        } else {
+            ofproto_port->ofp_port = alloc_ofp_port(ofproto,
+                                                    ofproto_port->name);
+        }
+    }
     pp->port_no = ofproto_port->ofp_port;
     netdev_get_etheraddr(netdev, pp->hw_addr);
     ovs_strlcpy(pp->name, ofproto_port->name, sizeof pp->name);
@@ -1549,8 +1763,8 @@ ofport_open(const struct ofproto *ofproto,
     pp->state = netdev_get_carrier(netdev) ? 0 : OFPUTIL_PS_LINK_DOWN;
     netdev_get_features(netdev, &pp->curr, &pp->advertised,
                         &pp->supported, &pp->peer);
-    pp->curr_speed = netdev_features_to_bps(pp->curr);
-    pp->max_speed = netdev_features_to_bps(pp->supported);
+    pp->curr_speed = netdev_features_to_bps(pp->curr, 0);
+    pp->max_speed = netdev_features_to_bps(pp->supported, 0);
 
     return netdev;
 }
@@ -1595,9 +1809,11 @@ ofport_install(struct ofproto *p,
     ofport->change_seq = netdev_change_seq(netdev);
     ofport->pp = *pp;
     ofport->ofp_port = pp->port_no;
+    ofport->created = time_msec();
 
     /* Add port to 'p'. */
-    hmap_insert(&p->ports, &ofport->hmap_node, hash_int(ofport->ofp_port, 0));
+    hmap_insert(&p->ports, &ofport->hmap_node,
+                hash_ofp_port(ofport->ofp_port));
     shash_add(&p->port_by_name, netdev_name, ofport);
 
     update_mtu(p, ofport);
@@ -1673,7 +1889,7 @@ ofproto_port_set_state(struct ofport *port, enum ofputil_port_state state)
 }
 
 void
-ofproto_port_unregister(struct ofproto *ofproto, uint16_t ofp_port)
+ofproto_port_unregister(struct ofproto *ofproto, ofp_port_t ofp_port)
 {
     struct ofport *port = ofproto_get_port(ofproto, ofp_port);
     if (port) {
@@ -1710,18 +1926,19 @@ static void
 ofport_destroy(struct ofport *port)
 {
     if (port) {
+        dealloc_ofp_port(port->ofproto, port->ofp_port);
         port->ofproto->ofproto_class->port_destruct(port);
         ofport_destroy__(port);
      }
 }
 
 struct ofport *
-ofproto_get_port(const struct ofproto *ofproto, uint16_t ofp_port)
+ofproto_get_port(const struct ofproto *ofproto, ofp_port_t ofp_port)
 {
     struct ofport *port;
 
-    HMAP_FOR_EACH_IN_BUCKET (port, hmap_node,
-                             hash_int(ofp_port, 0), &ofproto->ports) {
+    HMAP_FOR_EACH_IN_BUCKET (port, hmap_node, hash_ofp_port(ofp_port),
+                             &ofproto->ports) {
         if (port->ofp_port == ofp_port) {
             return port;
         }
@@ -1758,6 +1975,7 @@ update_port(struct ofproto *ofproto, const char *name)
     netdev = (!ofproto_port_query_by_name(ofproto, name, &ofproto_port)
               ? ofport_open(ofproto, &ofproto_port, &pp)
               : NULL);
+
     if (netdev) {
         port = ofproto_get_port(ofproto, ofproto_port.ofp_port);
         if (port && !strcmp(netdev_get_name(port->netdev), name)) {
@@ -1803,19 +2021,26 @@ init_ports(struct ofproto *p)
 {
     struct ofproto_port_dump dump;
     struct ofproto_port ofproto_port;
+    struct shash_node *node, *next;
 
     OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) {
-        uint16_t ofp_port = ofproto_port.ofp_port;
-        if (ofproto_get_port(p, ofp_port)) {
-            VLOG_WARN_RL(&rl, "%s: ignoring duplicate port %"PRIu16" "
-                         "in datapath", p->name, ofp_port);
-        } else if (shash_find(&p->port_by_name, ofproto_port.name)) {
+        const char *name = ofproto_port.name;
+
+        if (shash_find(&p->port_by_name, name)) {
             VLOG_WARN_RL(&rl, "%s: ignoring duplicate device %s in datapath",
-                         p->name, ofproto_port.name);
+                         p->name, name);
         } else {
             struct ofputil_phy_port pp;
             struct netdev *netdev;
 
+            /* Check if an OpenFlow port number had been requested. */
+            node = shash_find(&init_ofp_ports, name);
+            if (node) {
+                const struct iface_hint *iface_hint = node->data;
+                simap_put(&p->ofp_requests, name,
+                          ofp_to_u16(iface_hint->ofp_port));
+            }
+
             netdev = ofport_open(p, &ofproto_port, &pp);
             if (netdev) {
                 ofport_install(p, netdev, &pp);
@@ -1823,6 +2048,17 @@ init_ports(struct ofproto *p)
         }
     }
 
+    SHASH_FOR_EACH_SAFE(node, next, &init_ofp_ports) {
+        struct iface_hint *iface_hint = node->data;
+
+        if (!strcmp(iface_hint->br_name, p->name)) {
+            free(iface_hint->br_name);
+            free(iface_hint->br_type);
+            free(iface_hint);
+            shash_delete(&init_ofp_ports, node);
+        }
+    }
+
     return 0;
 }
 
@@ -1918,7 +2154,7 @@ ofproto_rule_destroy__(struct rule *rule)
 void
 ofproto_rule_destroy(struct rule *rule)
 {
-    assert(!rule->pending);
+    ovs_assert(!rule->pending);
     oftable_remove_rule(rule);
     ofproto_rule_destroy__(rule);
 }
@@ -1926,16 +2162,16 @@ ofproto_rule_destroy(struct rule *rule)
 /* Returns true if 'rule' has an OpenFlow OFPAT_OUTPUT or OFPAT_ENQUEUE action
  * that outputs to 'port' (output to OFPP_FLOOD and OFPP_ALL doesn't count). */
 bool
-ofproto_rule_has_out_port(const struct rule *rule, uint16_t port)
+ofproto_rule_has_out_port(const struct rule *rule, ofp_port_t port)
 {
-    return (port == OFPP_NONE
+    return (port == OFPP_ANY
             || ofpacts_output_to_port(rule->ofpacts, rule->ofpacts_len, port));
 }
 
 /* Returns true if a rule related to 'op' has an OpenFlow OFPAT_OUTPUT or
  * OFPAT_ENQUEUE action that outputs to 'out_port'. */
 bool
-ofoperation_has_out_port(const struct ofoperation *op, uint16_t out_port)
+ofoperation_has_out_port(const struct ofoperation *op, ofp_port_t out_port)
 {
     if (ofproto_rule_has_out_port(op->rule, out_port)) {
         return true;
@@ -1957,20 +2193,22 @@ ofoperation_has_out_port(const struct ofoperation *op, uint16_t out_port)
 
 /* Executes the actions indicated by 'rule' on 'packet' and credits 'rule''s
  * statistics appropriately.  'packet' must have at least sizeof(struct
- * ofp_packet_in) bytes of headroom.
+ * ofp10_packet_in) bytes of headroom.
  *
  * 'packet' doesn't necessarily have to match 'rule'.  'rule' will be credited
  * with statistics for 'packet' either way.
  *
  * Takes ownership of 'packet'. */
 static int
-rule_execute(struct rule *rule, uint16_t in_port, struct ofpbuf *packet)
+rule_execute(struct rule *rule, ofp_port_t in_port, struct ofpbuf *packet)
 {
     struct flow flow;
+    union flow_in_port in_port_;
 
-    assert(ofpbuf_headroom(packet) >= sizeof(struct ofp_packet_in));
+    ovs_assert(ofpbuf_headroom(packet) >= sizeof(struct ofp10_packet_in));
 
-    flow_extract(packet, 0, 0, in_port, &flow);
+    in_port_.ofp_port = in_port;
+    flow_extract(packet, 0, 0, NULL, &in_port_, &flow);
     return rule->ofproto->ofproto_class->rule_execute(rule, &flow, packet);
 }
 
@@ -2012,20 +2250,33 @@ handle_features_request(struct ofconn *ofconn, const struct ofp_header *oh)
     struct ofport *port;
     bool arp_match_ip;
     struct ofpbuf *b;
+    int n_tables;
+    int i;
 
     ofproto->ofproto_class->get_features(ofproto, &arp_match_ip,
                                          &features.actions);
-    assert(features.actions & OFPUTIL_A_OUTPUT); /* sanity check */
+    ovs_assert(features.actions & OFPUTIL_A_OUTPUT); /* sanity check */
+
+    /* Count only non-hidden tables in the number of tables.  (Hidden tables,
+     * if present, are always at the end.) */
+    n_tables = ofproto->n_tables;
+    for (i = 0; i < ofproto->n_tables; i++) {
+        if (ofproto->tables[i].flags & OFTABLE_HIDDEN) {
+            n_tables = i;
+            break;
+        }
+    }
 
     features.datapath_id = ofproto->datapath_id;
     features.n_buffers = pktbuf_capacity();
-    features.n_tables = ofproto->n_tables;
+    features.n_tables = n_tables;
     features.capabilities = (OFPUTIL_C_FLOW_STATS | OFPUTIL_C_TABLE_STATS |
                              OFPUTIL_C_PORT_STATS | OFPUTIL_C_QUEUE_STATS);
     if (arp_match_ip) {
         features.capabilities |= OFPUTIL_C_ARP_MATCH_IP;
     }
-
+    /* FIXME: Fill in proper features.auxiliary_id for auxiliary connections */
+    features.auxiliary_id = 0;
     b = ofputil_encode_switch_features(&features, ofconn_get_protocol(ofconn),
                                        oh->xid);
     HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) {
@@ -2048,7 +2299,9 @@ handle_get_config_request(struct ofconn *ofconn, const struct ofp_header *oh)
     buf = ofpraw_alloc_reply(OFPRAW_OFPT_GET_CONFIG_REPLY, oh, 0);
     osc = ofpbuf_put_uninit(buf, sizeof *osc);
     flags = ofproto->frag_handling;
-    if (ofconn_get_invalid_ttl_to_controller(ofconn)) {
+    /* OFPC_INVALID_TTL_TO_CONTROLLER is deprecated in OF 1.3 */
+    if (oh->version < OFP13_VERSION
+        && ofconn_get_invalid_ttl_to_controller(ofconn)) {
         flags |= OFPC_INVALID_TTL_TO_CONTROLLER;
     }
     osc->flags = htons(flags);
@@ -2066,11 +2319,11 @@ handle_set_config(struct ofconn *ofconn, const struct ofp_header *oh)
     uint16_t flags = ntohs(osc->flags);
 
     if (ofconn_get_type(ofconn) != OFCONN_PRIMARY
-        || ofconn_get_role(ofconn) != NX_ROLE_SLAVE) {
+        || ofconn_get_role(ofconn) != OFPCR12_ROLE_SLAVE) {
         enum ofp_config_flags cur = ofproto->frag_handling;
         enum ofp_config_flags next = flags & OFPC_FRAG_MASK;
 
-        assert((cur & OFPC_FRAG_MASK) == cur);
+        ovs_assert((cur & OFPC_FRAG_MASK) == cur);
         if (cur != next) {
             if (ofproto->ofproto_class->set_frag_handling(ofproto, next)) {
                 ofproto->frag_handling = next;
@@ -2081,8 +2334,10 @@ handle_set_config(struct ofconn *ofconn, const struct ofp_header *oh)
             }
         }
     }
+    /* OFPC_INVALID_TTL_TO_CONTROLLER is deprecated in OF 1.3 */
     ofconn_set_invalid_ttl_to_controller(ofconn,
-             (flags & OFPC_INVALID_TTL_TO_CONTROLLER));
+             (oh->version < OFP13_VERSION
+              && flags & OFPC_INVALID_TTL_TO_CONTROLLER));
 
     ofconn_set_miss_send_len(ofconn, ntohs(osc->miss_send_len));
 
@@ -2098,7 +2353,7 @@ static enum ofperr
 reject_slave_controller(struct ofconn *ofconn)
 {
     if (ofconn_get_type(ofconn) == OFCONN_PRIMARY
-        && ofconn_get_role(ofconn) == NX_ROLE_SLAVE) {
+        && ofconn_get_role(ofconn) == OFPCR12_ROLE_SLAVE) {
         return OFPERR_OFPBRC_EPERM;
     } else {
         return 0;
@@ -2114,6 +2369,7 @@ handle_packet_out(struct ofconn *ofconn, const struct ofp_header *oh)
     uint64_t ofpacts_stub[1024 / 8];
     struct ofpbuf ofpacts;
     struct flow flow;
+    union flow_in_port in_port_;
     enum ofperr error;
 
     COVERAGE_INC(ofproto_packet_out);
@@ -2129,7 +2385,8 @@ handle_packet_out(struct ofconn *ofconn, const struct ofp_header *oh)
     if (error) {
         goto exit_free_ofpacts;
     }
-    if (po.in_port >= p->max_ports && po.in_port < OFPP_MAX) {
+    if (ofp_to_u16(po.in_port) >= ofp_to_u16(p->max_ports)
+        && ofp_to_u16(po.in_port) < ofp_to_u16(OFPP_MAX)) {
         error = OFPERR_OFPBRC_BAD_PORT;
         goto exit_free_ofpacts;
     }
@@ -2147,7 +2404,8 @@ handle_packet_out(struct ofconn *ofconn, const struct ofp_header *oh)
     }
 
     /* Verify actions against packet, then send packet if successful. */
-    flow_extract(payload, 0, 0, po.in_port, &flow);
+    in_port_.ofp_port = po.in_port;
+    flow_extract(payload, 0, 0, NULL, &in_port_, &flow);
     error = ofpacts_check(po.ofpacts, po.ofpacts_len, &flow, p->max_ports);
     if (!error) {
         error = p->ofproto_class->packet_out(p, payload, &flow,
@@ -2172,9 +2430,9 @@ update_port_config(struct ofport *port,
     toggle = (config ^ port->pp.config) & mask;
     if (toggle & OFPUTIL_PC_PORT_DOWN) {
         if (config & OFPUTIL_PC_PORT_DOWN) {
-            netdev_turn_flags_off(port->netdev, NETDEV_UP, true);
+            netdev_turn_flags_off(port->netdev, NETDEV_UP, NULL);
         } else {
-            netdev_turn_flags_on(port->netdev, NETDEV_UP, true);
+            netdev_turn_flags_on(port->netdev, NETDEV_UP, NULL);
         }
         toggle &= ~OFPUTIL_PC_PORT_DOWN;
     }
@@ -2221,17 +2479,29 @@ static enum ofperr
 handle_desc_stats_request(struct ofconn *ofconn,
                           const struct ofp_header *request)
 {
+    static const char *default_mfr_desc = "Nicira, Inc.";
+    static const char *default_hw_desc = "Open vSwitch";
+    static const char *default_sw_desc = VERSION;
+    static const char *default_serial_desc = "None";
+    static const char *default_dp_desc = "None";
+
     struct ofproto *p = ofconn_get_ofproto(ofconn);
     struct ofp_desc_stats *ods;
     struct ofpbuf *msg;
 
     msg = ofpraw_alloc_stats_reply(request, 0);
     ods = ofpbuf_put_zeros(msg, sizeof *ods);
-    ovs_strlcpy(ods->mfr_desc, p->mfr_desc, sizeof ods->mfr_desc);
-    ovs_strlcpy(ods->hw_desc, p->hw_desc, sizeof ods->hw_desc);
-    ovs_strlcpy(ods->sw_desc, p->sw_desc, sizeof ods->sw_desc);
-    ovs_strlcpy(ods->serial_num, p->serial_desc, sizeof ods->serial_num);
-    ovs_strlcpy(ods->dp_desc, p->dp_desc, sizeof ods->dp_desc);
+    ovs_strlcpy(ods->mfr_desc, p->mfr_desc ? p->mfr_desc : default_mfr_desc,
+                sizeof ods->mfr_desc);
+    ovs_strlcpy(ods->hw_desc, p->hw_desc ? p->hw_desc : default_hw_desc,
+                sizeof ods->hw_desc);
+    ovs_strlcpy(ods->sw_desc, p->sw_desc ? p->sw_desc : default_sw_desc,
+                sizeof ods->sw_desc);
+    ovs_strlcpy(ods->serial_num,
+                p->serial_desc ? p->serial_desc : default_serial_desc,
+                sizeof ods->serial_num);
+    ovs_strlcpy(ods->dp_desc, p->dp_desc ? p->dp_desc : default_dp_desc,
+                sizeof ods->dp_desc);
     ofconn_send_reply(ofconn, msg);
 
     return 0;
@@ -2242,25 +2512,47 @@ handle_table_stats_request(struct ofconn *ofconn,
                            const struct ofp_header *request)
 {
     struct ofproto *p = ofconn_get_ofproto(ofconn);
-    struct ofp10_table_stats *ots;
+    struct ofp12_table_stats *ots;
     struct ofpbuf *msg;
+    int n_tables;
     size_t i;
 
-    msg = ofpraw_alloc_stats_reply(request, sizeof *ots * p->n_tables);
-    ots = ofpbuf_put_zeros(msg, sizeof *ots * p->n_tables);
+    /* Set up default values.
+     *
+     * ofp12_table_stats is used as a generic structure as
+     * it is able to hold all the fields for ofp10_table_stats
+     * and ofp11_table_stats (and of course itself).
+     */
+    ots = xcalloc(p->n_tables, sizeof *ots);
     for (i = 0; i < p->n_tables; i++) {
         ots[i].table_id = i;
         sprintf(ots[i].name, "table%zu", i);
-        ots[i].wildcards = htonl(OFPFW10_ALL);
+        ots[i].match = htonll(OFPXMT12_MASK);
+        ots[i].wildcards = htonll(OFPXMT12_MASK);
+        ots[i].write_actions = htonl(OFPAT11_OUTPUT);
+        ots[i].apply_actions = htonl(OFPAT11_OUTPUT);
+        ots[i].write_setfields = htonll(OFPXMT12_MASK);
+        ots[i].apply_setfields = htonll(OFPXMT12_MASK);
+        ots[i].metadata_match = htonll(UINT64_MAX);
+        ots[i].metadata_write = htonll(UINT64_MAX);
+        ots[i].instructions = htonl(OFPIT11_ALL);
+        ots[i].config = htonl(OFPTC11_TABLE_MISS_MASK);
         ots[i].max_entries = htonl(1000000); /* An arbitrary big number. */
         ots[i].active_count = htonl(classifier_count(&p->tables[i].cls));
     }
 
     p->ofproto_class->get_tables(p, ots);
 
+    /* Post-process the tables, dropping hidden tables. */
+    n_tables = p->n_tables;
     for (i = 0; i < p->n_tables; i++) {
         const struct oftable *table = &p->tables[i];
 
+        if (table->flags & OFTABLE_HIDDEN) {
+            n_tables = i;
+            break;
+        }
+
         if (table->name) {
             ovs_strzcpy(ots[i].name, table->name, sizeof ots[i].name);
         }
@@ -2270,36 +2562,28 @@ handle_table_stats_request(struct ofconn *ofconn,
         }
     }
 
+    msg = ofputil_encode_table_stats_reply(ots, n_tables, request);
     ofconn_send_reply(ofconn, msg);
+
+    free(ots);
+
     return 0;
 }
 
 static void
 append_port_stat(struct ofport *port, struct list *replies)
 {
-    struct netdev_stats stats;
-    struct ofp10_port_stats *ops;
+    struct ofputil_port_stats ops = { .port_no = port->pp.port_no };
+
+    calc_duration(port->created, time_msec(),
+                  &ops.duration_sec, &ops.duration_nsec);
 
     /* Intentionally ignore return value, since errors will set
      * 'stats' to all-1s, which is correct for OpenFlow, and
      * netdev_get_stats() will log errors. */
-    ofproto_port_get_stats(port, &stats);
-
-    ops = ofpmp_append(replies, sizeof *ops);
-    ops->port_no = htons(port->pp.port_no);
-    memset(ops->pad, 0, sizeof ops->pad);
-    put_32aligned_be64(&ops->rx_packets, htonll(stats.rx_packets));
-    put_32aligned_be64(&ops->tx_packets, htonll(stats.tx_packets));
-    put_32aligned_be64(&ops->rx_bytes, htonll(stats.rx_bytes));
-    put_32aligned_be64(&ops->tx_bytes, htonll(stats.tx_bytes));
-    put_32aligned_be64(&ops->rx_dropped, htonll(stats.rx_dropped));
-    put_32aligned_be64(&ops->tx_dropped, htonll(stats.tx_dropped));
-    put_32aligned_be64(&ops->rx_errors, htonll(stats.rx_errors));
-    put_32aligned_be64(&ops->tx_errors, htonll(stats.tx_errors));
-    put_32aligned_be64(&ops->rx_frame_err, htonll(stats.rx_frame_errors));
-    put_32aligned_be64(&ops->rx_over_err, htonll(stats.rx_over_errors));
-    put_32aligned_be64(&ops->rx_crc_err, htonll(stats.rx_crc_errors));
-    put_32aligned_be64(&ops->collisions, htonll(stats.collisions));
+    ofproto_port_get_stats(port, &ops.stats);
+
+    ofputil_append_port_stat(replies, &ops);
 }
 
 static enum ofperr
@@ -2307,13 +2591,19 @@ handle_port_stats_request(struct ofconn *ofconn,
                           const struct ofp_header *request)
 {
     struct ofproto *p = ofconn_get_ofproto(ofconn);
-    const struct ofp10_port_stats_request *psr = ofpmsg_body(request);
     struct ofport *port;
     struct list replies;
+    ofp_port_t port_no;
+    enum ofperr error;
+
+    error = ofputil_decode_port_stats_request(request, &port_no);
+    if (error) {
+        return error;
+    }
 
     ofpmp_init(&replies, request);
-    if (psr->port_no != htons(OFPP_NONE)) {
-        port = ofproto_get_port(p, ntohs(psr->port_no));
+    if (port_no != OFPP_ANY) {
+        port = ofproto_get_port(p, port_no);
         if (port) {
             append_port_stat(port, &replies);
         }
@@ -2347,9 +2637,42 @@ handle_port_desc_stats_request(struct ofconn *ofconn,
     return 0;
 }
 
+static uint32_t
+hash_cookie(ovs_be64 cookie)
+{
+    return hash_2words((OVS_FORCE uint64_t)cookie >> 32,
+                       (OVS_FORCE uint64_t)cookie);
+}
+
 static void
-calc_flow_duration__(long long int start, long long int now,
-                     uint32_t *sec, uint32_t *nsec)
+cookies_insert(struct ofproto *ofproto, struct rule *rule)
+{
+    hindex_insert(&ofproto->cookies, &rule->cookie_node,
+                  hash_cookie(rule->flow_cookie));
+}
+
+static void
+cookies_remove(struct ofproto *ofproto, struct rule *rule)
+{
+    hindex_remove(&ofproto->cookies, &rule->cookie_node);
+}
+
+static void
+ofproto_rule_change_cookie(struct ofproto *ofproto, struct rule *rule,
+                           ovs_be64 new_cookie)
+{
+    if (new_cookie != rule->flow_cookie) {
+        cookies_remove(ofproto, rule);
+
+        rule->flow_cookie = new_cookie;
+
+        cookies_insert(ofproto, rule);
+    }
+}
+
+static void
+calc_duration(long long int start, long long int now,
+              uint32_t *sec, uint32_t *nsec)
 {
     long long int msecs = now - start;
     *sec = msecs / 1000;
@@ -2429,7 +2752,7 @@ next_matching_table(const struct ofproto *ofproto,
  * OpenFlow OFPFC_MODIFY and OFPFC_DELETE requests and puts them on list
  * 'rules'.
  *
- * If 'out_port' is anything other than OFPP_NONE, then only rules that output
+ * If 'out_port' is anything other than OFPP_ANY, then only rules that output
  * to 'out_port' are included.
  *
  * Hidden rules are always omitted.
@@ -2439,7 +2762,7 @@ static enum ofperr
 collect_rules_loose(struct ofproto *ofproto, uint8_t table_id,
                     const struct match *match,
                     ovs_be64 cookie, ovs_be64 cookie_mask,
-                    uint16_t out_port, struct list *rules)
+                    ofp_port_t out_port, struct list *rules)
 {
     struct oftable *table;
     struct cls_rule cr;
@@ -2452,6 +2775,32 @@ collect_rules_loose(struct ofproto *ofproto, uint8_t table_id,
 
     list_init(rules);
     cls_rule_init(&cr, match, 0);
+
+    if (cookie_mask == htonll(UINT64_MAX)) {
+        struct rule *rule;
+
+        HINDEX_FOR_EACH_WITH_HASH (rule, cookie_node, hash_cookie(cookie),
+                                   &ofproto->cookies) {
+            if (table_id != rule->table_id && table_id != 0xff) {
+                continue;
+            }
+            if (ofproto_rule_is_hidden(rule)) {
+                continue;
+            }
+            if (cls_rule_is_loose_match(&rule->cr, &cr.match)) {
+                if (rule->pending) {
+                    error = OFPROTO_POSTPONE;
+                    goto exit;
+                }
+                if (rule->flow_cookie == cookie /* Hash collisions possible. */
+                    && ofproto_rule_has_out_port(rule, out_port)) {
+                    list_push_back(rules, &rule->ofproto_node);
+                }
+            }
+        }
+        goto exit;
+    }
+
     FOR_EACH_MATCHING_TABLE (table, table_id, ofproto) {
         struct cls_cursor cursor;
         struct rule *rule;
@@ -2480,7 +2829,7 @@ exit:
  * OpenFlow OFPFC_MODIFY_STRICT and OFPFC_DELETE_STRICT requests and puts them
  * on list 'rules'.
  *
- * If 'out_port' is anything other than OFPP_NONE, then only rules that output
+ * If 'out_port' is anything other than OFPP_ANY, then only rules that output
  * to 'out_port' are included.
  *
  * Hidden rules are always omitted.
@@ -2490,7 +2839,7 @@ static enum ofperr
 collect_rules_strict(struct ofproto *ofproto, uint8_t table_id,
                      const struct match *match, unsigned int priority,
                      ovs_be64 cookie, ovs_be64 cookie_mask,
-                     uint16_t out_port, struct list *rules)
+                     ofp_port_t out_port, struct list *rules)
 {
     struct oftable *table;
     struct cls_rule cr;
@@ -2503,6 +2852,32 @@ collect_rules_strict(struct ofproto *ofproto, uint8_t table_id,
 
     list_init(rules);
     cls_rule_init(&cr, match, priority);
+
+    if (cookie_mask == htonll(UINT64_MAX)) {
+        struct rule *rule;
+
+        HINDEX_FOR_EACH_WITH_HASH (rule, cookie_node, hash_cookie(cookie),
+                                   &ofproto->cookies) {
+            if (table_id != rule->table_id && table_id != 0xff) {
+                continue;
+            }
+            if (ofproto_rule_is_hidden(rule)) {
+                continue;
+            }
+            if (cls_rule_equal(&rule->cr, &cr)) {
+                if (rule->pending) {
+                    error = OFPROTO_POSTPONE;
+                    goto exit;
+                }
+                if (rule->flow_cookie == cookie /* Hash collisions possible. */
+                    && ofproto_rule_has_out_port(rule, out_port)) {
+                    list_push_back(rules, &rule->ofproto_node);
+                }
+            }
+        }
+        goto exit;
+    }
+
     FOR_EACH_MATCHING_TABLE (table, table_id, ofproto) {
         struct rule *rule;
 
@@ -2568,8 +2943,7 @@ handle_flow_stats_request(struct ofconn *ofconn,
         fs.priority = rule->cr.priority;
         fs.cookie = rule->flow_cookie;
         fs.table_id = rule->table_id;
-        calc_flow_duration__(rule->created, now, &fs.duration_sec,
-                             &fs.duration_nsec);
+        calc_duration(rule->created, now, &fs.duration_sec, &fs.duration_nsec);
         fs.idle_timeout = rule->idle_timeout;
         fs.hard_timeout = rule->hard_timeout;
         fs.idle_age = age_secs(now - rule->used);
@@ -2578,6 +2952,12 @@ handle_flow_stats_request(struct ofconn *ofconn,
                                                &fs.byte_count);
         fs.ofpacts = rule->ofpacts;
         fs.ofpacts_len = rule->ofpacts_len;
+        fs.flags = 0;
+        if (rule->send_flow_removed) {
+            fs.flags |= OFPFF_SEND_FLOW_REM;
+            /* FIXME: Implement OF 1.3 flags OFPFF13_NO_PKT_COUNTS
+               and OFPFF13_NO_BYT_COUNTS */
+        }
         ofputil_append_flow_stats_reply(&fs, &replies);
     }
     ofconn_send_replies(ofconn, &replies);
@@ -2603,11 +2983,7 @@ flow_stats_ds(struct rule *rule, struct ds *results)
     ds_put_format(results, "n_bytes=%"PRIu64", ", byte_count);
     cls_rule_format(&rule->cr, results);
     ds_put_char(results, ',');
-    if (rule->ofpacts_len > 0) {
-        ofpacts_format(rule->ofpacts, rule->ofpacts_len, results);
-    } else {
-        ds_put_cstr(results, "drop");
-    }
+    ofpacts_format(rule->ofpacts, rule->ofpacts_len, results);
     ds_put_cstr(results, "\n");
 }
 
@@ -2638,62 +3014,21 @@ ofproto_get_netflow_ids(const struct ofproto *ofproto,
     ofproto->ofproto_class->get_netflow_ids(ofproto, engine_type, engine_id);
 }
 
-/* Checks the fault status of CFM for 'ofp_port' within 'ofproto'.  Returns a
- * bitmask of 'cfm_fault_reason's to indicate a CFM fault (generally
- * indicating a connectivity problem).  Returns zero if CFM is not faulted,
- * and -1 if CFM is not enabled on 'ofp_port'. */
-int
-ofproto_port_get_cfm_fault(const struct ofproto *ofproto, uint16_t ofp_port)
-{
-    struct ofport *ofport = ofproto_get_port(ofproto, ofp_port);
-    return (ofport && ofproto->ofproto_class->get_cfm_fault
-            ? ofproto->ofproto_class->get_cfm_fault(ofport)
-            : -1);
-}
-
-/* Checks the operational status reported by the remote CFM endpoint of
- * 'ofp_port'  Returns 1 if operationally up, 0 if operationally down, and -1
- * if CFM is not enabled on 'ofp_port' or does not support operational status.
- */
-int
-ofproto_port_get_cfm_opup(const struct ofproto *ofproto, uint16_t ofp_port)
-{
-    struct ofport *ofport = ofproto_get_port(ofproto, ofp_port);
-    return (ofport && ofproto->ofproto_class->get_cfm_opup
-            ? ofproto->ofproto_class->get_cfm_opup(ofport)
-            : -1);
-}
-
-/* Gets the MPIDs of the remote maintenance points broadcasting to 'ofp_port'
- * within 'ofproto'.  Populates 'rmps' with an array of MPIDs owned by
- * 'ofproto', and 'n_rmps' with the number of MPIDs in 'rmps'.  Returns a
- * number less than 0 if CFM is not enabled on 'ofp_port'. */
-int
-ofproto_port_get_cfm_remote_mpids(const struct ofproto *ofproto,
-                                  uint16_t ofp_port, const uint64_t **rmps,
-                                  size_t *n_rmps)
-{
-    struct ofport *ofport = ofproto_get_port(ofproto, ofp_port);
-
-    *rmps = NULL;
-    *n_rmps = 0;
-    return (ofport && ofproto->ofproto_class->get_cfm_remote_mpids
-            ? ofproto->ofproto_class->get_cfm_remote_mpids(ofport, rmps,
-                                                           n_rmps)
-            : -1);
-}
-
-/* Checks the health of the CFM for 'ofp_port' within 'ofproto'.  Returns an
- * integer value between 0 and 100 to indicate the health of the port as a
- * percentage which is the average of cfm health of all the remote_mpids or
- * returns -1 if CFM is not enabled on 'ofport'. */
-int
-ofproto_port_get_cfm_health(const struct ofproto *ofproto, uint16_t ofp_port)
+/* Checks the status of CFM configured on 'ofp_port' within 'ofproto'.  Returns
+ * true if the port's CFM status was successfully stored into '*status'.
+ * Returns false if the port did not have CFM configured, in which case
+ * '*status' is indeterminate.
+ *
+ * The caller must provide and owns '*status', but it does not own and must not
+ * modify or free the array returned in 'status->rmps'. */
+bool
+ofproto_port_get_cfm_status(const struct ofproto *ofproto, ofp_port_t ofp_port,
+                            struct ofproto_cfm_status *status)
 {
     struct ofport *ofport = ofproto_get_port(ofproto, ofp_port);
-    return (ofport && ofproto->ofproto_class->get_cfm_health
-            ? ofproto->ofproto_class->get_cfm_health(ofport)
-            : -1);
+    return (ofport
+            && ofproto->ofproto_class->get_cfm_status
+            && ofproto->ofproto_class->get_cfm_status(ofport, status));
 }
 
 static enum ofperr
@@ -2766,15 +3101,13 @@ static void
 put_queue_stats(struct queue_stats_cbdata *cbdata, uint32_t queue_id,
                 const struct netdev_queue_stats *stats)
 {
-    struct ofp10_queue_stats *reply;
 
-    reply = ofpmp_append(&cbdata->replies, sizeof *reply);
-    reply->port_no = htons(cbdata->ofport->pp.port_no);
-    memset(reply->pad, 0, sizeof reply->pad);
-    reply->queue_id = htonl(queue_id);
-    put_32aligned_be64(&reply->tx_bytes, htonll(stats->tx_bytes));
-    put_32aligned_be64(&reply->tx_packets, htonll(stats->tx_packets));
-    put_32aligned_be64(&reply->tx_errors, htonll(stats->tx_errors));
+    struct ofputil_queue_stats oqs = {
+        .port_no = cbdata->ofport->pp.port_no,
+        .queue_id = queue_id,
+        .stats = *stats,
+    };
+    ofputil_append_queue_stat(&cbdata->replies, &oqs);
 }
 
 static void
@@ -2812,30 +3145,31 @@ handle_queue_stats_request(struct ofconn *ofconn,
                            const struct ofp_header *rq)
 {
     struct ofproto *ofproto = ofconn_get_ofproto(ofconn);
-    const struct ofp10_queue_stats_request *qsr = ofpmsg_body(rq);
     struct queue_stats_cbdata cbdata;
-    unsigned int port_no;
     struct ofport *port;
-    uint32_t queue_id;
     enum ofperr error;
+    struct ofputil_queue_stats_request oqsr;
 
     COVERAGE_INC(ofproto_queue_req);
 
     ofpmp_init(&cbdata.replies, rq);
 
-    port_no = ntohs(qsr->port_no);
-    queue_id = ntohl(qsr->queue_id);
-    if (port_no == OFPP_ALL) {
+    error = ofputil_decode_queue_stats_request(rq, &oqsr);
+    if (error) {
+        return error;
+    }
+
+    if (oqsr.port_no == OFPP_ANY) {
         error = OFPERR_OFPQOFC_BAD_QUEUE;
         HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) {
-            if (!handle_queue_stats_for_port(port, queue_id, &cbdata)) {
+            if (!handle_queue_stats_for_port(port, oqsr.queue_id, &cbdata)) {
                 error = 0;
             }
         }
     } else {
-        port = ofproto_get_port(ofproto, port_no);
+        port = ofproto_get_port(ofproto, oqsr.port_no);
         error = (port
-                 ? handle_queue_stats_for_port(port, queue_id, &cbdata)
+                 ? handle_queue_stats_for_port(port, oqsr.queue_id, &cbdata)
                  : OFPERR_OFPQOFC_BAD_PORT);
     }
     if (!error) {
@@ -2887,8 +3221,8 @@ add_flow(struct ofproto *ofproto, struct ofconn *ofconn,
     struct oftable *table;
     struct ofopgroup *group;
     struct rule *victim;
-    struct cls_rule cr;
     struct rule *rule;
+    uint8_t table_id;
     int error;
 
     error = check_table_id(ofproto, fm->table_id);
@@ -2898,7 +3232,6 @@ add_flow(struct ofproto *ofproto, struct ofconn *ofconn,
 
     /* Pick table. */
     if (fm->table_id == 0xff) {
-        uint8_t table_id;
         if (ofproto->ofproto_class->rule_choose_table) {
             error = ofproto->ofproto_class->rule_choose_table(ofproto,
                                                               &fm->match,
@@ -2906,17 +3239,18 @@ add_flow(struct ofproto *ofproto, struct ofconn *ofconn,
             if (error) {
                 return error;
             }
-            assert(table_id < ofproto->n_tables);
-            table = &ofproto->tables[table_id];
+            ovs_assert(table_id < ofproto->n_tables);
         } else {
-            table = &ofproto->tables[0];
+            table_id = 0;
         }
     } else if (fm->table_id < ofproto->n_tables) {
-        table = &ofproto->tables[fm->table_id];
+        table_id = fm->table_id;
     } else {
         return OFPERR_OFPBRC_BAD_TABLE_ID;
     }
 
+    table = &ofproto->tables[table_id];
+
     if (table->flags & OFTABLE_READONLY) {
         return OFPERR_OFPBRC_EPERM;
     }
@@ -2931,7 +3265,7 @@ add_flow(struct ofproto *ofproto, struct ofconn *ofconn,
     cls_rule_init(&rule->cr, &fm->match, fm->priority);
 
     /* Serialize against pending deletion. */
-    if (is_flow_deletion_pending(ofproto, &cr, table - ofproto->tables)) {
+    if (is_flow_deletion_pending(ofproto, &rule->cr, table_id)) {
         cls_rule_destroy(&rule->cr);
         ofproto->ofproto_class->rule_dealloc(rule);
         return OFPROTO_POSTPONE;
@@ -2945,6 +3279,8 @@ add_flow(struct ofproto *ofproto, struct ofconn *ofconn,
         return OFPERR_OFPFMFC_OVERLAP;
     }
 
+    /* FIXME: Implement OFPFF12_RESET_COUNTS */
+
     rule->ofproto = ofproto;
     rule->pending = NULL;
     rule->flow_cookie = fm->new_cookie;
@@ -2953,10 +3289,13 @@ add_flow(struct ofproto *ofproto, struct ofconn *ofconn,
     rule->hard_timeout = fm->hard_timeout;
     rule->table_id = table - ofproto->tables;
     rule->send_flow_removed = (fm->flags & OFPFF_SEND_FLOW_REM) != 0;
+    /* FIXME: Implement OF 1.3 flags OFPFF13_NO_PKT_COUNTS
+       and OFPFF13_NO_BYT_COUNTS */
     rule->ofpacts = xmemdup(fm->ofpacts, fm->ofpacts_len);
     rule->ofpacts_len = fm->ofpacts_len;
     rule->evictable = true;
     rule->eviction_group = NULL;
+    list_init(&rule->expirable);
     rule->monitor_flags = 0;
     rule->add_seqno = 0;
     rule->modify_seqno = 0;
@@ -2980,7 +3319,7 @@ add_flow(struct ofproto *ofproto, struct ofconn *ofconn,
             rule->evictable = was_evictable;
 
             if (!evict) {
-                error = OFPERR_OFPFMFC_ALL_TABLES_FULL;
+                error = OFPERR_OFPFMFC_TABLE_FULL;
                 goto exit;
             } else if (evict->pending) {
                 error = OFPROTO_POSTPONE;
@@ -3036,7 +3375,8 @@ modify_flows__(struct ofproto *ofproto, struct ofconn *ofconn,
     LIST_FOR_EACH (rule, ofproto_node, rules) {
         struct ofoperation *op;
         bool actions_changed;
-        ovs_be64 new_cookie;
+
+        /* FIXME: Implement OFPFF12_RESET_COUNTS */
 
         if (rule_is_modifiable(rule)) {
             /* At least one rule is modifiable, don't report EPERM error. */
@@ -3047,16 +3387,12 @@ modify_flows__(struct ofproto *ofproto, struct ofconn *ofconn,
 
         actions_changed = !ofpacts_equal(fm->ofpacts, fm->ofpacts_len,
                                          rule->ofpacts, rule->ofpacts_len);
-        new_cookie = (fm->new_cookie != htonll(UINT64_MAX)
-                      ? fm->new_cookie
-                      : rule->flow_cookie);
-        if (!actions_changed && new_cookie == rule->flow_cookie) {
-            /* No change at all. */
-            continue;
-        }
 
         op = ofoperation_create(group, rule, OFOPERATION_MODIFY, 0);
-        rule->flow_cookie = new_cookie;
+
+        if (fm->new_cookie != htonll(UINT64_MAX)) {
+            ofproto_rule_change_cookie(ofproto, rule, fm->new_cookie);
+        }
         if (actions_changed) {
             op->ofpacts = rule->ofpacts;
             op->ofpacts_len = rule->ofpacts_len;
@@ -3072,6 +3408,17 @@ modify_flows__(struct ofproto *ofproto, struct ofconn *ofconn,
     return error;
 }
 
+static enum ofperr
+modify_flows_add(struct ofproto *ofproto, struct ofconn *ofconn,
+                 const struct ofputil_flow_mod *fm,
+                 const struct ofp_header *request)
+{
+    if (fm->cookie_mask != htonll(0) || fm->new_cookie == htonll(UINT64_MAX)) {
+        return 0;
+    }
+    return add_flow(ofproto, ofconn, fm, request);
+}
+
 /* Implements OFPFC_MODIFY.  Returns 0 on success or an OpenFlow error code on
  * failure.
  *
@@ -3087,11 +3434,11 @@ modify_flows_loose(struct ofproto *ofproto, struct ofconn *ofconn,
 
     error = collect_rules_loose(ofproto, fm->table_id, &fm->match,
                                 fm->cookie, fm->cookie_mask,
-                                OFPP_NONE, &rules);
+                                OFPP_ANY, &rules);
     if (error) {
         return error;
     } else if (list_is_empty(&rules)) {
-        return fm->cookie_mask ? 0 : add_flow(ofproto, ofconn, fm, request);
+        return modify_flows_add(ofproto, ofconn, fm, request);
     } else {
         return modify_flows__(ofproto, ofconn, fm, request, &rules);
     }
@@ -3112,12 +3459,12 @@ modify_flow_strict(struct ofproto *ofproto, struct ofconn *ofconn,
 
     error = collect_rules_strict(ofproto, fm->table_id, &fm->match,
                                  fm->priority, fm->cookie, fm->cookie_mask,
-                                 OFPP_NONE, &rules);
+                                 OFPP_ANY, &rules);
 
     if (error) {
         return error;
     } else if (list_is_empty(&rules)) {
-        return fm->cookie_mask ? 0 : add_flow(ofproto, ofconn, fm, request);
+        return modify_flows_add(ofproto, ofconn, fm, request);
     } else {
         return list_is_singleton(&rules) ? modify_flows__(ofproto, ofconn,
                                                           fm, request, &rules)
@@ -3207,8 +3554,9 @@ ofproto_rule_send_removed(struct rule *rule, uint8_t reason)
     fr.priority = rule->cr.priority;
     fr.cookie = rule->flow_cookie;
     fr.reason = reason;
-    calc_flow_duration__(rule->created, time_msec(),
-                         &fr.duration_sec, &fr.duration_nsec);
+    fr.table_id = rule->table_id;
+    calc_duration(rule->created, time_msec(),
+                  &fr.duration_sec, &fr.duration_nsec);
     fr.idle_timeout = rule->idle_timeout;
     fr.hard_timeout = rule->hard_timeout;
     rule->ofproto->ofproto_class->rule_get_stats(rule, &fr.packet_count,
@@ -3246,7 +3594,7 @@ ofproto_rule_expire(struct rule *rule, uint8_t reason)
     struct ofproto *ofproto = rule->ofproto;
     struct ofopgroup *group;
 
-    assert(reason == OFPRR_HARD_TIMEOUT || reason == OFPRR_IDLE_TIMEOUT);
+    ovs_assert(reason == OFPRR_HARD_TIMEOUT || reason == OFPRR_IDLE_TIMEOUT);
 
     ofproto_rule_send_removed(rule, reason);
 
@@ -3275,24 +3623,12 @@ handle_flow_mod(struct ofconn *ofconn, const struct ofp_header *oh)
     ofpbuf_use_stub(&ofpacts, ofpacts_stub, sizeof ofpacts_stub);
     error = ofputil_decode_flow_mod(&fm, oh, ofconn_get_protocol(ofconn),
                                     &ofpacts);
-    if (error) {
-        goto exit_free_ofpacts;
-    }
-
-    if (fm.flags & OFPFF10_EMERG) {
-    /* We do not support the OpenFlow 1.0 emergency flow cache, which is not
-     * required in OpenFlow 1.0.1 and removed from OpenFlow 1.1. */
-        /* We do not support the emergency flow cache.  It will hopefully get
-         * dropped from OpenFlow in the near future.  There is no good error
-         * code, so just state that the flow table is full. */
-        error = OFPERR_OFPFMFC_ALL_TABLES_FULL;
-    }
     if (!error) {
         error = ofpacts_check(fm.ofpacts, fm.ofpacts_len,
                               &fm.match.flow, ofproto->max_ports);
     }
     if (!error) {
-        error = handle_flow_mod__(ofconn_get_ofproto(ofconn), ofconn, &fm, oh);
+        error = handle_flow_mod__(ofproto, ofconn, &fm, oh);
     }
     if (error) {
         goto exit_free_ofpacts;
@@ -3336,7 +3672,7 @@ handle_flow_mod__(struct ofproto *ofproto, struct ofconn *ofconn,
                   const struct ofp_header *oh)
 {
     if (ofproto->n_pending >= 50) {
-        assert(!list_is_empty(&ofproto->pending));
+        ovs_assert(!list_is_empty(&ofproto->pending));
         return OFPROTO_POSTPONE;
     }
 
@@ -3369,27 +3705,34 @@ handle_flow_mod__(struct ofproto *ofproto, struct ofconn *ofconn,
 static enum ofperr
 handle_role_request(struct ofconn *ofconn, const struct ofp_header *oh)
 {
-    const struct nx_role_request *nrr = ofpmsg_body(oh);
-    struct nx_role_request *reply;
+    struct ofputil_role_request request;
+    struct ofputil_role_request reply;
     struct ofpbuf *buf;
-    uint32_t role;
+    enum ofperr error;
 
-    role = ntohl(nrr->role);
-    if (role != NX_ROLE_OTHER && role != NX_ROLE_MASTER
-        && role != NX_ROLE_SLAVE) {
-        return OFPERR_OFPRRFC_BAD_ROLE;
+    error = ofputil_decode_role_message(oh, &request);
+    if (error) {
+        return error;
     }
 
-    if (ofconn_get_role(ofconn) != role
-        && ofconn_has_pending_opgroups(ofconn)) {
-        return OFPROTO_POSTPONE;
-    }
+    if (request.role != OFPCR12_ROLE_NOCHANGE) {
+        if (ofconn_get_role(ofconn) != request.role
+            && ofconn_has_pending_opgroups(ofconn)) {
+            return OFPROTO_POSTPONE;
+        }
+
+        if (request.have_generation_id
+            && !ofconn_set_master_election_id(ofconn, request.generation_id)) {
+                return OFPERR_OFPRRFC_STALE;
+        }
 
-    ofconn_set_role(ofconn, role);
+        ofconn_set_role(ofconn, request.role);
+    }
 
-    buf = ofpraw_alloc_reply(OFPRAW_NXT_ROLE_REPLY, oh, 0);
-    reply = ofpbuf_put_zeros(buf, sizeof *reply);
-    reply->role = htonl(role);
+    reply.role = ofconn_get_role(ofconn);
+    reply.have_generation_id = ofconn_get_master_election_id(
+        ofconn, &reply.generation_id);
+    buf = ofputil_encode_role_reply(oh, &reply);
     ofconn_send_reply(ofconn, buf);
 
     return 0;
@@ -3532,6 +3875,7 @@ ofproto_compose_flow_refresh_update(const struct rule *rule,
     fu.cookie = rule->flow_cookie;
     minimatch_expand(&rule->cr.match, &match);
     fu.match = &match;
+    fu.priority = rule->cr.priority;
     if (!(flags & NXFMF_ACTIONS)) {
         fu.ofpacts = NULL;
         fu.ofpacts_len = 0;
@@ -3643,7 +3987,7 @@ ofproto_collect_ofmonitor_refresh_rules(const struct ofmonitor *m,
 
         cls_cursor_init(&cursor, &table->cls, &target);
         CLS_CURSOR_FOR_EACH (rule, cr, &cursor) {
-            assert(!rule->pending); /* XXX */
+            ovs_assert(!rule->pending); /* XXX */
             ofproto_collect_ofmonitor_refresh_rule(m, rule, seqno, rules);
         }
     }
@@ -3799,14 +4143,14 @@ handle_openflow__(struct ofconn *ofconn, const struct ofpbuf *msg)
     case OFPTYPE_BARRIER_REQUEST:
         return handle_barrier_request(ofconn, oh);
 
+    case OFPTYPE_ROLE_REQUEST:
+        return handle_role_request(ofconn, oh);
+
         /* OpenFlow replies. */
     case OFPTYPE_ECHO_REPLY:
         return 0;
 
         /* Nicira extension requests. */
-    case OFPTYPE_ROLE_REQUEST:
-        return handle_role_request(ofconn, oh);
-
     case OFPTYPE_FLOW_MOD_TABLE_ID:
         return handle_nxt_flow_mod_table_id(ofconn, oh);
 
@@ -3854,6 +4198,19 @@ handle_openflow__(struct ofconn *ofconn, const struct ofpbuf *msg)
     case OFPTYPE_FLOW_MONITOR_STATS_REQUEST:
         return handle_flow_monitor_request(ofconn, oh);
 
+        /* FIXME: Change the following once they are implemented: */
+    case OFPTYPE_QUEUE_GET_CONFIG_REQUEST:
+    case OFPTYPE_GET_ASYNC_REQUEST:
+    case OFPTYPE_METER_MOD:
+    case OFPTYPE_GROUP_REQUEST:
+    case OFPTYPE_GROUP_DESC_REQUEST:
+    case OFPTYPE_GROUP_FEATURES_REQUEST:
+    case OFPTYPE_METER_REQUEST:
+    case OFPTYPE_METER_CONFIG_REQUEST:
+    case OFPTYPE_METER_FEATURES_REQUEST:
+    case OFPTYPE_TABLE_FEATURES_REQUEST:
+        return OFPERR_OFPBRC_BAD_TYPE;
+
     case OFPTYPE_HELLO:
     case OFPTYPE_ERROR:
     case OFPTYPE_FEATURES_REPLY:
@@ -3862,6 +4219,7 @@ handle_openflow__(struct ofconn *ofconn, const struct ofpbuf *msg)
     case OFPTYPE_FLOW_REMOVED:
     case OFPTYPE_PORT_STATUS:
     case OFPTYPE_BARRIER_REPLY:
+    case OFPTYPE_QUEUE_GET_CONFIG_REPLY:
     case OFPTYPE_DESC_STATS_REPLY:
     case OFPTYPE_FLOW_STATS_REPLY:
     case OFPTYPE_QUEUE_STATS_REPLY:
@@ -3873,13 +4231,21 @@ handle_openflow__(struct ofconn *ofconn, const struct ofpbuf *msg)
     case OFPTYPE_FLOW_MONITOR_PAUSED:
     case OFPTYPE_FLOW_MONITOR_RESUMED:
     case OFPTYPE_FLOW_MONITOR_STATS_REPLY:
+    case OFPTYPE_GET_ASYNC_REPLY:
+    case OFPTYPE_GROUP_REPLY:
+    case OFPTYPE_GROUP_DESC_REPLY:
+    case OFPTYPE_GROUP_FEATURES_REPLY:
+    case OFPTYPE_METER_REPLY:
+    case OFPTYPE_METER_CONFIG_REPLY:
+    case OFPTYPE_METER_FEATURES_REPLY:
+    case OFPTYPE_TABLE_FEATURES_REPLY:
     default:
         return OFPERR_OFPBRC_BAD_TYPE;
     }
 }
 
 static bool
-handle_openflow(struct ofconn *ofconn, struct ofpbuf *ofp_msg)
+handle_openflow(struct ofconn *ofconn, const struct ofpbuf *ofp_msg)
 {
     int error = handle_openflow__(ofconn, ofp_msg);
     if (error && error != OFPROTO_POSTPONE) {
@@ -3927,7 +4293,7 @@ ofopgroup_create(struct ofproto *ofproto, struct ofconn *ofconn,
     if (ofconn) {
         size_t request_len = ntohs(request->length);
 
-        assert(ofconn_get_ofproto(ofconn) == ofproto);
+        ovs_assert(ofconn_get_ofproto(ofconn) == ofproto);
 
         ofconn_add_opgroup(ofconn, &group->ofconn_node);
         group->ofconn = ofconn;
@@ -3965,7 +4331,7 @@ ofopgroup_complete(struct ofopgroup *group)
     struct ofoperation *op, *next_op;
     int error;
 
-    assert(!group->n_running);
+    ovs_assert(!group->n_running);
 
     error = 0;
     LIST_FOR_EACH (op, group_node, &group->ops) {
@@ -3979,12 +4345,12 @@ ofopgroup_complete(struct ofopgroup *group)
         LIST_FOR_EACH (op, group_node, &group->ops) {
             if (op->type != OFOPERATION_DELETE) {
                 struct ofpbuf *packet;
-                uint16_t in_port;
+                ofp_port_t in_port;
 
                 error = ofconn_pktbuf_retrieve(group->ofconn, group->buffer_id,
                                                &packet, &in_port);
                 if (packet) {
-                    assert(!error);
+                    ovs_assert(!error);
                     error = rule_execute(op->rule, in_port, packet);
                 }
                 break;
@@ -4002,7 +4368,19 @@ ofopgroup_complete(struct ofopgroup *group)
     LIST_FOR_EACH_SAFE (op, next_op, group_node, &group->ops) {
         struct rule *rule = op->rule;
 
-        if (!op->error && !ofproto_rule_is_hidden(rule)) {
+        /* We generally want to report the change to active OpenFlow flow
+           monitors (e.g. NXST_FLOW_MONITOR).  There are three exceptions:
+
+              - The operation failed.
+
+              - The affected rule is not visible to controllers.
+
+              - The operation's only effect was to update rule->modified. */
+        if (!(op->error
+              || ofproto_rule_is_hidden(rule)
+              || (op->type == OFOPERATION_MODIFY
+                  && op->ofpacts
+                  && rule->flow_cookie == op->flow_cookie))) {
             /* Check that we can just cast from ofoperation_type to
              * nx_flow_update_event. */
             BUILD_ASSERT_DECL((enum nx_flow_update_event) OFOPERATION_ADD
@@ -4044,7 +4422,7 @@ ofopgroup_complete(struct ofopgroup *group)
             break;
 
         case OFOPERATION_DELETE:
-            assert(!op->error);
+            ovs_assert(!op->error);
             ofproto_rule_destroy__(rule);
             op->rule = NULL;
             break;
@@ -4053,7 +4431,7 @@ ofopgroup_complete(struct ofopgroup *group)
             if (!op->error) {
                 rule->modified = time_msec();
             } else {
-                rule->flow_cookie = op->flow_cookie;
+                ofproto_rule_change_cookie(ofproto, rule, op->flow_cookie);
                 if (op->ofpacts) {
                     free(rule->ofpacts);
                     rule->ofpacts = op->ofpacts;
@@ -4074,7 +4452,7 @@ ofopgroup_complete(struct ofopgroup *group)
     ofmonitor_flush(ofproto->connmgr);
 
     if (!list_is_empty(&group->ofproto_node)) {
-        assert(ofproto->n_pending > 0);
+        ovs_assert(ofproto->n_pending > 0);
         ofproto->n_pending--;
         list_remove(&group->ofproto_node);
     }
@@ -4105,7 +4483,7 @@ ofoperation_create(struct ofopgroup *group, struct rule *rule,
     struct ofproto *ofproto = group->ofproto;
     struct ofoperation *op;
 
-    assert(!rule->pending);
+    ovs_assert(!rule->pending);
 
     op = rule->pending = xzalloc(sizeof *op);
     op->group = group;
@@ -4175,9 +4553,9 @@ ofoperation_complete(struct ofoperation *op, enum ofperr error)
 {
     struct ofopgroup *group = op->group;
 
-    assert(op->rule->pending == op);
-    assert(group->n_running > 0);
-    assert(!error || op->type != OFOPERATION_DELETE);
+    ovs_assert(op->rule->pending == op);
+    ovs_assert(group->n_running > 0);
+    ovs_assert(!error || op->type != OFOPERATION_DELETE);
 
     op->error = error;
     if (!--group->n_running && !list_is_empty(&group->ofproto_node)) {
@@ -4188,7 +4566,7 @@ ofoperation_complete(struct ofoperation *op, enum ofperr error)
 struct rule *
 ofoperation_get_victim(struct ofoperation *op)
 {
-    assert(op->type == OFOPERATION_ADD);
+    ovs_assert(op->type == OFOPERATION_ADD);
     return op->victim;
 }
 \f
@@ -4488,7 +4866,7 @@ oftable_init(struct oftable *table)
 static void
 oftable_destroy(struct oftable *table)
 {
-    assert(classifier_is_empty(&table->cls));
+    ovs_assert(classifier_is_empty(&table->cls));
     oftable_disable_eviction(table);
     classifier_destroy(&table->cls);
     free(table->name);
@@ -4582,7 +4960,11 @@ oftable_remove_rule(struct rule *rule)
     struct oftable *table = &ofproto->tables[rule->table_id];
 
     classifier_remove(&table->cls, &rule->cr);
+    cookies_remove(ofproto, rule);
     eviction_group_remove_rule(rule);
+    if (!list_is_empty(&rule->expirable)) {
+        list_remove(&rule->expirable);
+    }
 }
 
 /* Inserts 'rule' into its oftable.  Removes any existing rule from 'rule''s
@@ -4594,9 +4976,20 @@ oftable_replace_rule(struct rule *rule)
     struct ofproto *ofproto = rule->ofproto;
     struct oftable *table = &ofproto->tables[rule->table_id];
     struct rule *victim;
+    bool may_expire = rule->hard_timeout || rule->idle_timeout;
+
+    if (may_expire) {
+        list_insert(&ofproto->expirable, &rule->expirable);
+    }
+    cookies_insert(ofproto, rule);
 
     victim = rule_from_cls_rule(classifier_replace(&table->cls, &rule->cr));
     if (victim) {
+        cookies_remove(ofproto, victim);
+
+        if (!list_is_empty(&victim->expirable)) {
+            list_remove(&victim->expirable);
+        }
         eviction_group_remove_rule(victim);
     }
     eviction_group_add_rule(rule);
@@ -4709,13 +5102,13 @@ ofproto_has_vlan_usage_changed(const struct ofproto *ofproto)
  * device as a VLAN splinter for VLAN ID 'vid'.  If 'realdev_ofp_port' is zero,
  * then the VLAN device is un-enslaved. */
 int
-ofproto_port_set_realdev(struct ofproto *ofproto, uint16_t vlandev_ofp_port,
-                         uint16_t realdev_ofp_port, int vid)
+ofproto_port_set_realdev(struct ofproto *ofproto, ofp_port_t vlandev_ofp_port,
+                         ofp_port_t realdev_ofp_port, int vid)
 {
     struct ofport *ofport;
     int error;
 
-    assert(vlandev_ofp_port != realdev_ofp_port);
+    ovs_assert(vlandev_ofp_port != realdev_ofp_port);
 
     ofport = ofproto_get_port(ofproto, vlandev_ofp_port);
     if (!ofport) {