meta-flow: Correctly set destination MAC in mf_set_flow_value().
[sliver-openvswitch.git] / ofproto / connmgr.c
index 745e0a6..46d6d79 100644 (file)
 #include "odp-util.h"
 #include "ofp-util.h"
 #include "ofpbuf.h"
+#include "ofproto-provider.h"
 #include "pinsched.h"
 #include "poll-loop.h"
 #include "pktbuf.h"
-#include "private.h"
 #include "rconn.h"
 #include "shash.h"
+#include "stream.h"
 #include "timeval.h"
 #include "vconn.h"
 #include "vlog.h"
@@ -47,6 +48,7 @@ struct ofconn {
     struct rconn *rconn;        /* OpenFlow connection. */
     enum ofconn_type type;      /* Type. */
     enum nx_flow_format flow_format; /* Currently selected flow format. */
+    enum nx_packet_in_format packet_in_format; /* OFPT_PACKET_IN format. */
     bool flow_mod_table_id;     /* NXT_FLOW_MOD_TABLE_ID enabled? */
 
     /* Asynchronous flow table operation support. */
@@ -137,7 +139,6 @@ struct connmgr {
 
     /* In-band control. */
     struct in_band *in_band;
-    long long int next_in_band_update;
     struct sockaddr_in *extra_in_band_remotes;
     size_t n_extra_remotes;
     int in_band_queue;
@@ -172,7 +173,6 @@ connmgr_create(struct ofproto *ofproto,
     mgr->fail_mode = OFPROTO_FAIL_SECURE;
 
     mgr->in_band = NULL;
-    mgr->next_in_band_update = LLONG_MAX;
     mgr->extra_in_band_remotes = NULL;
     mgr->n_extra_remotes = 0;
     mgr->in_band_queue = -1;
@@ -242,10 +242,10 @@ connmgr_run(struct connmgr *mgr,
     size_t i;
 
     if (handle_openflow && mgr->in_band) {
-        if (time_msec() >= mgr->next_in_band_update) {
-            update_in_band_remotes(mgr);
+        if (!in_band_run(mgr->in_band)) {
+            in_band_destroy(mgr->in_band);
+            mgr->in_band = NULL;
         }
-        in_band_run(mgr->in_band);
     }
 
     LIST_FOR_EACH_SAFE (ofconn, next_ofconn, node, &mgr->all_conns) {
@@ -309,7 +309,6 @@ connmgr_wait(struct connmgr *mgr, bool handling_openflow)
         ofconn_wait(ofconn, handling_openflow);
     }
     if (handling_openflow && mgr->in_band) {
-        poll_timer_wait_until(mgr->next_in_band_update);
         in_band_wait(mgr->in_band);
     }
     if (handling_openflow && mgr->fail_open) {
@@ -373,45 +372,62 @@ connmgr_get_controller_info(struct connmgr *mgr, struct shash *info)
 {
     const struct ofconn *ofconn;
 
-    shash_init(info);
-
     HMAP_FOR_EACH (ofconn, hmap_node, &mgr->controllers) {
         const struct rconn *rconn = ofconn->rconn;
-        time_t now = time_now();
-        time_t last_connection = rconn_get_last_connection(rconn);
-        time_t last_disconnect = rconn_get_last_disconnect(rconn);
-        int last_error = rconn_get_last_error(rconn);
-        struct ofproto_controller_info *cinfo = xmalloc(sizeof *cinfo);
+        const char *target = rconn_get_target(rconn);
 
-        shash_add(info, rconn_get_target(rconn), cinfo);
+        if (!shash_find(info, target)) {
+            struct ofproto_controller_info *cinfo = xmalloc(sizeof *cinfo);
+            time_t now = time_now();
+            time_t last_connection = rconn_get_last_connection(rconn);
+            time_t last_disconnect = rconn_get_last_disconnect(rconn);
+            int last_error = rconn_get_last_error(rconn);
 
-        cinfo->is_connected = rconn_is_connected(rconn);
-        cinfo->role = ofconn->role;
+            shash_add(info, target, cinfo);
 
-        cinfo->pairs.n = 0;
+            cinfo->is_connected = rconn_is_connected(rconn);
+            cinfo->role = ofconn->role;
 
-        if (last_error) {
-            cinfo->pairs.keys[cinfo->pairs.n] = "last_error";
-            cinfo->pairs.values[cinfo->pairs.n++] =
-                xstrdup(ovs_retval_to_string(last_error));
-        }
+            cinfo->pairs.n = 0;
 
-        cinfo->pairs.keys[cinfo->pairs.n] = "state";
-        cinfo->pairs.values[cinfo->pairs.n++] =
-            xstrdup(rconn_get_state(rconn));
+            if (last_error) {
+                cinfo->pairs.keys[cinfo->pairs.n] = "last_error";
+                cinfo->pairs.values[cinfo->pairs.n++]
+                    = xstrdup(ovs_retval_to_string(last_error));
+            }
 
-        if (last_connection != TIME_MIN) {
-            cinfo->pairs.keys[cinfo->pairs.n] = "sec_since_connect";
+            cinfo->pairs.keys[cinfo->pairs.n] = "state";
             cinfo->pairs.values[cinfo->pairs.n++]
-                = xasprintf("%ld", (long int) (now - last_connection));
+                = xstrdup(rconn_get_state(rconn));
+
+            if (last_connection != TIME_MIN) {
+                cinfo->pairs.keys[cinfo->pairs.n] = "sec_since_connect";
+                cinfo->pairs.values[cinfo->pairs.n++]
+                    = xasprintf("%ld", (long int) (now - last_connection));
+            }
+
+            if (last_disconnect != TIME_MIN) {
+                cinfo->pairs.keys[cinfo->pairs.n] = "sec_since_disconnect";
+                cinfo->pairs.values[cinfo->pairs.n++]
+                    = xasprintf("%ld", (long int) (now - last_disconnect));
+            }
         }
+    }
+}
 
-        if (last_disconnect != TIME_MIN) {
-            cinfo->pairs.keys[cinfo->pairs.n] = "sec_since_disconnect";
-            cinfo->pairs.values[cinfo->pairs.n++]
-                = xasprintf("%ld", (long int) (now - last_disconnect));
+void
+connmgr_free_controller_info(struct shash *info)
+{
+    struct shash_node *node;
+
+    SHASH_FOR_EACH (node, info) {
+        struct ofproto_controller_info *cinfo = node->data;
+        while (cinfo->pairs.n) {
+            free((char *) cinfo->pairs.values[--cinfo->pairs.n]);
         }
+        free(cinfo);
     }
+    shash_destroy(info);
 }
 
 /* Changes 'mgr''s set of controllers to the 'n_controllers' controllers in
@@ -573,14 +589,16 @@ update_in_band_remotes(struct connmgr *mgr)
     /* Add all the remotes. */
     HMAP_FOR_EACH (ofconn, hmap_node, &mgr->controllers) {
         struct sockaddr_in *sin = &addrs[n_addrs];
+        const char *target = rconn_get_target(ofconn->rconn);
 
         if (ofconn->band == OFPROTO_OUT_OF_BAND) {
             continue;
         }
 
-        sin->sin_addr.s_addr = rconn_get_remote_ip(ofconn->rconn);
-        if (sin->sin_addr.s_addr) {
-            sin->sin_port = rconn_get_remote_port(ofconn->rconn);
+        if (stream_parse_target_with_default_ports(target,
+                                                   OFP_TCP_PORT,
+                                                   OFP_SSL_PORT,
+                                                   sin)) {
             n_addrs++;
         }
     }
@@ -593,14 +611,13 @@ update_in_band_remotes(struct connmgr *mgr)
         if (!mgr->in_band) {
             in_band_create(mgr->ofproto, mgr->local_port_name, &mgr->in_band);
         }
-        if (mgr->in_band) {
-            in_band_set_remotes(mgr->in_band, addrs, n_addrs);
-        }
         in_band_set_queue(mgr->in_band, mgr->in_band_queue);
-        mgr->next_in_band_update = time_msec() + 1000;
     } else {
-        in_band_destroy(mgr->in_band);
-        mgr->in_band = NULL;
+        /* in_band_run() needs a chance to delete any existing in-band flows.
+         * We will destroy mgr->in_band after it's done with that. */
+    }
+    if (mgr->in_band) {
+        in_band_set_remotes(mgr->in_band, addrs, n_addrs);
     }
 
     /* Clean up. */
@@ -753,6 +770,25 @@ ofconn_set_flow_format(struct ofconn *ofconn, enum nx_flow_format flow_format)
     ofconn->flow_format = flow_format;
 }
 
+/* Returns the currently configured packet in format for 'ofconn', one of
+ * NXPIF_*.
+ *
+ * The default, if no other format has been set, is NXPIF_OPENFLOW10. */
+enum nx_packet_in_format
+ofconn_get_packet_in_format(struct ofconn *ofconn)
+{
+    return ofconn->packet_in_format;
+}
+
+/* Sets the packet in format for 'ofconn' to 'packet_in_format' (one of
+ * NXPIF_*). */
+void
+ofconn_set_packet_in_format(struct ofconn *ofconn,
+                            enum nx_packet_in_format packet_in_format)
+{
+    ofconn->packet_in_format = packet_in_format;
+}
+
 /* Returns true if the NXT_FLOW_MOD_TABLE_ID extension is enabled, false
  * otherwise.
  *
@@ -815,8 +851,30 @@ void
 ofconn_send_error(const struct ofconn *ofconn,
                   const struct ofp_header *request, int error)
 {
-    struct ofpbuf *msg = ofputil_encode_error_msg(error, request);
+    struct ofpbuf *msg;
+
+    msg = ofputil_encode_error_msg(error, request);
     if (msg) {
+        static struct vlog_rate_limit err_rl = VLOG_RATE_LIMIT_INIT(10, 10);
+
+        if (!VLOG_DROP_INFO(&err_rl)) {
+            const struct ofputil_msg_type *type;
+            const char *type_name;
+            size_t request_len;
+            char *error_s;
+
+            request_len = ntohs(request->length);
+            type_name = (!ofputil_decode_msg_type_partial(request,
+                                                          MIN(64, request_len),
+                                                          &type)
+                         ? ofputil_msg_type_name(type)
+                         : "invalid");
+
+            error_s = ofputil_error_to_string(error);
+            VLOG_INFO("%s: sending %s error reply to %s message",
+                      rconn_get_name(ofconn->rconn), error_s, type_name);
+            free(error_s);
+        }
         ofconn_send_reply(ofconn, msg);
     }
 }
@@ -836,13 +894,6 @@ ofconn_has_pending_opgroups(const struct ofconn *ofconn)
     return !list_is_empty(&ofconn->opgroups);
 }
 
-/* Returns the number of pending opgroups on 'ofconn'. */
-size_t
-ofconn_n_pending_opgroups(const struct ofconn *ofconn)
-{
-    return list_size(&ofconn->opgroups);
-}
-
 /* Adds 'ofconn_node' to 'ofconn''s list of pending opgroups.
  *
  * If 'ofconn' is destroyed or its connection drops, then 'ofconn' will remove
@@ -875,6 +926,7 @@ ofconn_create(struct connmgr *mgr, struct rconn *rconn, enum ofconn_type type)
     ofconn->rconn = rconn;
     ofconn->type = type;
     ofconn->flow_format = NXFF_OPENFLOW10;
+    ofconn->packet_in_format = NXPIF_OPENFLOW10;
     ofconn->flow_mod_table_id = false;
     list_init(&ofconn->opgroups);
     ofconn->role = NX_ROLE_OTHER;
@@ -1065,7 +1117,7 @@ ofconn_send(const struct ofconn *ofconn, struct ofpbuf *msg,
 /* Sending asynchronous messages. */
 
 static void schedule_packet_in(struct ofconn *, struct ofputil_packet_in,
-                               const struct flow *, struct ofpbuf *rw_packet);
+                               const struct flow *);
 
 /* Sends an OFPT_PORT_STATUS message with 'opp' and 'reason' to appropriate
  * controllers managed by 'mgr'. */
@@ -1120,32 +1172,19 @@ connmgr_send_flow_removed(struct connmgr *mgr,
 }
 
 /* Given 'pin', sends an OFPT_PACKET_IN message to each OpenFlow controller as
- * necessary according to their individual configurations.
- *
- * 'rw_packet' may be NULL.  Otherwise, 'rw_packet' must contain the same data
- * as pin->packet.  (rw_packet == pin->packet is also valid.)  Ownership of
- * 'rw_packet' is transferred to this function. */
+ * necessary according to their individual configurations. */
 void
 connmgr_send_packet_in(struct connmgr *mgr,
                        const struct ofputil_packet_in *pin,
-                       const struct flow *flow, struct ofpbuf *rw_packet)
+                       const struct flow *flow)
 {
-    struct ofconn *ofconn, *prev;
+    struct ofconn *ofconn;
 
-    prev = NULL;
     LIST_FOR_EACH (ofconn, node, &mgr->all_conns) {
         if (ofconn_receives_async_msgs(ofconn)) {
-            if (prev) {
-                schedule_packet_in(prev, *pin, flow, NULL);
-            }
-            prev = ofconn;
+            schedule_packet_in(ofconn, *pin, flow);
         }
     }
-    if (prev) {
-        schedule_packet_in(prev, *pin, flow, rw_packet);
-    } else {
-        ofpbuf_delete(rw_packet);
-    }
 }
 
 /* pinsched callback for sending 'ofp_packet_in' on 'ofconn'. */
@@ -1160,14 +1199,10 @@ do_send_packet_in(struct ofpbuf *ofp_packet_in, void *ofconn_)
 
 /* Takes 'pin', whose packet has the flow specified by 'flow', composes an
  * OpenFlow packet-in message from it, and passes it to 'ofconn''s packet
- * scheduler for sending.
- *
- * 'rw_packet' may be NULL.  Otherwise, 'rw_packet' must contain the same data
- * as pin->packet.  (rw_packet == pin->packet is also valid.)  Ownership of
- * 'rw_packet' is transferred to this function. */
+ * scheduler for sending. */
 static void
 schedule_packet_in(struct ofconn *ofconn, struct ofputil_packet_in pin,
-                   const struct flow *flow, struct ofpbuf *rw_packet)
+                   const struct flow *flow)
 {
     struct connmgr *mgr = ofconn->connmgr;
 
@@ -1179,12 +1214,13 @@ schedule_packet_in(struct ofconn *ofconn, struct ofputil_packet_in pin,
     } else if (!ofconn->pktbuf) {
         pin.buffer_id = UINT32_MAX;
     } else {
-        pin.buffer_id = pktbuf_save(ofconn->pktbuf, pin.packet, flow->in_port);
+        pin.buffer_id = pktbuf_save(ofconn->pktbuf, pin.packet, pin.packet_len,
+                                    flow->in_port);
     }
 
     /* Figure out how much of the packet to send. */
     if (pin.reason == OFPR_NO_MATCH) {
-        pin.send_len = pin.packet->size;
+        pin.send_len = pin.packet_len;
     } else {
         /* Caller should have initialized 'send_len' to 'max_len' specified in
          * struct ofp_action_output. */
@@ -1197,7 +1233,8 @@ schedule_packet_in(struct ofconn *ofconn, struct ofputil_packet_in pin,
      * immediately call into do_send_packet_in() or it might buffer it for a
      * while (until a later call to pinsched_run()). */
     pinsched_send(ofconn->schedulers[pin.reason == OFPR_NO_MATCH ? 0 : 1],
-                  flow->in_port, ofputil_encode_packet_in(&pin, rw_packet),
+                  flow->in_port,
+                  ofputil_encode_packet_in(&pin, ofconn->packet_in_format),
                   do_send_packet_in, ofconn);
 }
 \f