ofp-util: Work on decoding OF1.1 flow_mods.

[openvswitch] / lib / rconn.c

diff --git a/lib/rconn.c b/lib/rconn.c
index aa8b7e305a65d1825746654f87879a5d4e873224..b84cda64d71d224b89ff34bcd6c9af7f885d2003 100644 (file)
--- a/lib/rconn.c
+++ b/lib/rconn.c
@@ -22,6 +22,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include "coverage.h"
+#include "ofp-msgs.h"
 #include "ofp-util.h"
 #include "ofpbuf.h"
 #include "openflow/openflow.h"
@@ -226,6 +227,12 @@ rconn_set_dscp(struct rconn *rc, uint8_t dscp)
     rc->dscp = dscp;
 }
 
+uint8_t
+rconn_get_dscp(const struct rconn *rc)
+{
+    return rc->dscp;
+}
+
 void
 rconn_set_probe_interval(struct rconn *rc, int probe_interval)
 {
@@ -581,7 +588,7 @@ rconn_send(struct rconn *rc, struct ofpbuf *b,
         copy_to_monitor(rc, b);
         b->private_p = counter;
         if (counter) {
-            rconn_packet_counter_inc(counter);
+            rconn_packet_counter_inc(counter, b->size);
         }
         list_push_back(&rc->txq, &b->list_node);
 
@@ -616,7 +623,9 @@ rconn_send_with_limit(struct rconn *rc, struct ofpbuf *b,
                       struct rconn_packet_counter *counter, int queue_limit)
 {
     int retval;
-    retval = counter->n >= queue_limit ? EAGAIN : rconn_send(rc, b, counter);
+    retval = (counter->n_packets >= queue_limit
+              ? EAGAIN
+              : rconn_send(rc, b, counter));
     if (retval) {
         COVERAGE_INC(rconn_overflow);
     }
@@ -855,12 +864,18 @@ rconn_get_last_error(const struct rconn *rc)
 {
     return rc->last_error;
 }
+
+/* Returns the number of messages queued for transmission on 'rc'. */
+unsigned int
+rconn_count_txqlen(const struct rconn *rc)
+{
+    return list_size(&rc->txq);
+}
 \f
 struct rconn_packet_counter *
 rconn_packet_counter_create(void)
 {
-    struct rconn_packet_counter *c = xmalloc(sizeof *c);
-    c->n = 0;
+    struct rconn_packet_counter *c = xzalloc(sizeof *c);
     c->ref_cnt = 1;
     return c;
 }
@@ -870,24 +885,32 @@ rconn_packet_counter_destroy(struct rconn_packet_counter *c)
 {
     if (c) {
         assert(c->ref_cnt > 0);
-        if (!--c->ref_cnt && !c->n) {
+        if (!--c->ref_cnt && !c->n_packets) {
             free(c);
         }
     }
 }
 
 void
-rconn_packet_counter_inc(struct rconn_packet_counter *c)
+rconn_packet_counter_inc(struct rconn_packet_counter *c, unsigned int n_bytes)
 {
-    c->n++;
+    c->n_packets++;
+    c->n_bytes += n_bytes;
 }
 
 void
-rconn_packet_counter_dec(struct rconn_packet_counter *c)
+rconn_packet_counter_dec(struct rconn_packet_counter *c, unsigned int n_bytes)
 {
-    assert(c->n > 0);
-    if (!--c->n && !c->ref_cnt) {
-        free(c);
+    assert(c->n_packets > 0);
+    assert(c->n_bytes >= n_bytes);
+
+    c->n_bytes -= n_bytes;
+    c->n_packets--;
+    if (!c->n_packets) {
+        assert(!c->n_bytes);
+        if (!c->ref_cnt) {
+            free(c);
+        }
     }
 }
 \f
@@ -914,6 +937,7 @@ static int
 try_send(struct rconn *rc)
 {
     struct ofpbuf *msg = ofpbuf_from_list(rc->txq.next);
+    unsigned int n_bytes = msg->size;
     struct rconn_packet_counter *counter = msg->private_p;
     int retval;
 
@@ -934,7 +958,7 @@ try_send(struct rconn *rc)
     COVERAGE_INC(rconn_sent);
     rc->packets_sent++;
     if (counter) {
-        rconn_packet_counter_dec(counter);
+        rconn_packet_counter_dec(counter, n_bytes);
     }
     return 0;
 }
@@ -1014,7 +1038,7 @@ flush_queue(struct rconn *rc)
         struct ofpbuf *b = ofpbuf_from_list(list_pop_front(&rc->txq));
         struct rconn_packet_counter *counter = b->private_p;
         if (counter) {
-            rconn_packet_counter_dec(counter);
+            rconn_packet_counter_dec(counter, b->size);
         }
         COVERAGE_INC(rconn_discarded);
         ofpbuf_delete(b);
@@ -1098,19 +1122,64 @@ is_connected_state(enum state state)
 static bool
 is_admitted_msg(const struct ofpbuf *b)
 {
-    struct ofp_header *oh = b->data;
-    uint8_t type = oh->type;
-    return !(type < 32
-             && (1u << type) & ((1u << OFPT_HELLO) |
-                                (1u << OFPT_ERROR) |
-                                (1u << OFPT_ECHO_REQUEST) |
-                                (1u << OFPT_ECHO_REPLY) |
-                                (1u << OFPT_VENDOR) |
-                                (1u << OFPT_FEATURES_REQUEST) |
-                                (1u << OFPT_FEATURES_REPLY) |
-                                (1u << OFPT_GET_CONFIG_REQUEST) |
-                                (1u << OFPT_GET_CONFIG_REPLY) |
-                                (1u << OFPT_SET_CONFIG)));
+    enum ofptype type;
+    enum ofperr error;
+
+    error = ofptype_decode(&type, b->data);
+    if (error) {
+        return false;
+    }
+
+    switch (type) {
+    case OFPTYPE_HELLO:
+    case OFPTYPE_ERROR:
+    case OFPTYPE_ECHO_REQUEST:
+    case OFPTYPE_ECHO_REPLY:
+    case OFPTYPE_FEATURES_REQUEST:
+    case OFPTYPE_FEATURES_REPLY:
+    case OFPTYPE_GET_CONFIG_REQUEST:
+    case OFPTYPE_GET_CONFIG_REPLY:
+    case OFPTYPE_SET_CONFIG:
+        return false;
+
+    case OFPTYPE_PACKET_IN:
+    case OFPTYPE_FLOW_REMOVED:
+    case OFPTYPE_PORT_STATUS:
+    case OFPTYPE_PACKET_OUT:
+    case OFPTYPE_FLOW_MOD:
+    case OFPTYPE_PORT_MOD:
+    case OFPTYPE_BARRIER_REQUEST:
+    case OFPTYPE_BARRIER_REPLY:
+    case OFPTYPE_DESC_STATS_REQUEST:
+    case OFPTYPE_DESC_STATS_REPLY:
+    case OFPTYPE_FLOW_STATS_REQUEST:
+    case OFPTYPE_FLOW_STATS_REPLY:
+    case OFPTYPE_AGGREGATE_STATS_REQUEST:
+    case OFPTYPE_AGGREGATE_STATS_REPLY:
+    case OFPTYPE_TABLE_STATS_REQUEST:
+    case OFPTYPE_TABLE_STATS_REPLY:
+    case OFPTYPE_PORT_STATS_REQUEST:
+    case OFPTYPE_PORT_STATS_REPLY:
+    case OFPTYPE_QUEUE_STATS_REQUEST:
+    case OFPTYPE_QUEUE_STATS_REPLY:
+    case OFPTYPE_PORT_DESC_STATS_REQUEST:
+    case OFPTYPE_PORT_DESC_STATS_REPLY:
+    case OFPTYPE_ROLE_REQUEST:
+    case OFPTYPE_ROLE_REPLY:
+    case OFPTYPE_SET_FLOW_FORMAT:
+    case OFPTYPE_FLOW_MOD_TABLE_ID:
+    case OFPTYPE_SET_PACKET_IN_FORMAT:
+    case OFPTYPE_FLOW_AGE:
+    case OFPTYPE_SET_ASYNC_CONFIG:
+    case OFPTYPE_SET_CONTROLLER_ID:
+    case OFPTYPE_FLOW_MONITOR_STATS_REQUEST:
+    case OFPTYPE_FLOW_MONITOR_STATS_REPLY:
+    case OFPTYPE_FLOW_MONITOR_CANCEL:
+    case OFPTYPE_FLOW_MONITOR_PAUSED:
+    case OFPTYPE_FLOW_MONITOR_RESUMED:
+    default:
+        return true;
+    }
 }
 
 /* Returns true if 'rc' is currently logging information about connection