X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=lib%2Fclassifier.h;h=db090225b42cf31127acc76a9374049e6e5ed959;hb=c2310ade7b550da9033963103ff1e318f34e1556;hp=d3121bfb81d5eba998fc9418114aeae713ae54c2;hpb=685a51a5b89750cead1b2934c2079d2bb9c52a4a;p=openvswitch

diff --git a/lib/classifier.h b/lib/classifier.h
index d3121bfb..db090225 100644
--- a/lib/classifier.h
+++ b/lib/classifier.h
@@ -32,6 +32,10 @@
 #include "openflow/nicira-ext.h"
 #include "openflow/openflow.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* A flow classifier. */
 struct classifier {
     int n_rules;                /* Total number of rules. */
@@ -40,12 +44,24 @@ struct classifier {
 
 /* A set of rules that all have the same fields wildcarded. */
 struct cls_table {
-    struct hmap_node hmap_node; /* Within struct classifier 'wctables'. */
+    struct hmap_node hmap_node; /* Within struct classifier 'tables' hmap. */
     struct hmap rules;          /* Contains "struct cls_rule"s. */
     struct flow_wildcards wc;   /* Wildcards for fields. */
     int n_table_rules;          /* Number of rules, including duplicates. */
 };
 
+/* Returns true if 'table' is a "catch-all" table that will match every
+ * packet (if there is no higher-priority match). */
+static inline bool
+cls_table_is_catchall(const struct cls_table *table)
+{
+    /* A catch-all table can only have one rule, so use hmap_count() as a cheap
+     * check to rule out other kinds of match before doing the full check with
+     * flow_wildcards_is_catchall(). */
+    return (hmap_count(&table->rules) == 1
+            && flow_wildcards_is_catchall(&table->wc));
+}
+
 /* A flow classification rule.
  *
  * Use one of the cls_rule_*() functions to initialize a cls_rule.
@@ -84,6 +100,8 @@ void cls_rule_set_in_port(struct cls_rule *, uint16_t odp_port);
 void cls_rule_set_dl_type(struct cls_rule *, ovs_be16);
 void cls_rule_set_dl_src(struct cls_rule *, const uint8_t[6]);
 void cls_rule_set_dl_dst(struct cls_rule *, const uint8_t[6]);
+void cls_rule_set_dl_dst_masked(struct cls_rule *, const uint8_t dl_dst[6],
+                                const uint8_t mask[6]);
 void cls_rule_set_dl_tci(struct cls_rule *, ovs_be16 tci);
 void cls_rule_set_dl_tci_masked(struct cls_rule *,
                                 ovs_be16 tci, ovs_be16 mask);
@@ -109,9 +127,10 @@ bool cls_rule_set_ipv6_src_masked(struct cls_rule *, const struct in6_addr *,
 void cls_rule_set_ipv6_dst(struct cls_rule *, const struct in6_addr *);
 bool cls_rule_set_ipv6_dst_masked(struct cls_rule *, const struct in6_addr *,
                                   const struct in6_addr *);
-void cls_rule_set_nd_target(struct cls_rule *, const struct in6_addr);
+void cls_rule_set_nd_target(struct cls_rule *, const struct in6_addr *);
 
 bool cls_rule_equal(const struct cls_rule *, const struct cls_rule *);
+uint32_t cls_rule_hash(const struct cls_rule *, uint32_t basis);
 
 void cls_rule_format(const struct cls_rule *, struct ds *);
 char *cls_rule_to_string(const struct cls_rule *);
@@ -121,7 +140,8 @@ void classifier_init(struct classifier *);
 void classifier_destroy(struct classifier *);
 bool classifier_is_empty(const struct classifier *);
 int classifier_count(const struct classifier *);
-struct cls_rule *classifier_insert(struct classifier *, struct cls_rule *);
+void classifier_insert(struct classifier *, struct cls_rule *);
+struct cls_rule *classifier_replace(struct classifier *, struct cls_rule *);
 void classifier_remove(struct classifier *, struct cls_rule *);
 struct cls_rule *classifier_lookup(const struct classifier *,
                                    const struct flow *);
@@ -160,4 +180,8 @@ struct cls_rule *cls_cursor_next(struct cls_cursor *, struct cls_rule *);
           : 0);                                                         \
          (RULE) = (NEXT))
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* classifier.h */