#include <assert.h>
#include <errno.h>
#include <netinet/in.h>
+#include "dynamic-string.h"
#include "flow.h"
#include "hash.h"
/* Converts the flow in 'flow' into a cls_rule in 'rule', with the given
* 'wildcards' and 'priority'.*/
void
-cls_rule_from_flow(struct cls_rule *rule, const flow_t *flow,
- uint32_t wildcards, unsigned int priority)
+cls_rule_from_flow(const flow_t *flow, uint32_t wildcards,
+ unsigned int priority, struct cls_rule *rule)
{
+ assert(!flow->reserved[0] && !flow->reserved[1] && !flow->reserved[2]);
rule->flow = *flow;
flow_wildcards_init(&rule->wc, wildcards);
rule->priority = priority;
}
/* Converts the ofp_match in 'match' into a cls_rule in 'rule', with the given
- * 'priority'. */
+ * 'priority'. If 'tun_id_from_cookie' is set then the upper 32 bits of
+ * 'cookie' are stored in the rule as the tunnel ID. */
void
-cls_rule_from_match(struct cls_rule *rule, const struct ofp_match *match,
- unsigned int priority)
+cls_rule_from_match(const struct ofp_match *match, unsigned int priority,
+ bool tun_id_from_cookie, uint64_t cookie,
+ struct cls_rule *rule)
{
uint32_t wildcards;
- flow_from_match(&rule->flow, &wildcards, match);
+ flow_from_match(match, tun_id_from_cookie, cookie, &rule->flow, &wildcards);
flow_wildcards_init(&rule->wc, wildcards);
rule->priority = rule->wc.wildcards ? priority : UINT16_MAX;
rule->table_idx = table_idx_from_wildcards(rule->wc.wildcards);
}
+/* Converts 'rule' to a string and returns the string. The caller must free
+ * the string (with free()). */
+char *
+cls_rule_to_string(const struct cls_rule *rule)
+{
+ struct ds s = DS_EMPTY_INITIALIZER;
+ ds_put_format(&s, "wildcards=%x priority=%u ",
+ rule->wc.wildcards, rule->priority);
+ flow_format(&s, &rule->flow);
+ return ds_cstr(&s);
+}
+
/* Prints cls_rule 'rule', for debugging.
*
* (The output could be improved and expanded, but this was good enough to
struct cls_rule target;
int i;
- cls_rule_from_flow(&target, flow, 0, 0);
+ cls_rule_from_flow(flow, 0, 0, &target);
for (i = 0; i < CLS_N_FIELDS; i++) {
struct cls_rule *rule = search_table(&cls->tables[i], i, &target);
if (rule && (!best || rule->priority > best->priority)) {
return search_exact_table(cls, flow_hash(target, 0), target);
}
- assert(wildcards == (wildcards & OFPFW_ALL));
+ assert(wildcards == (wildcards & OVSFW_ALL));
table_idx = table_idx_from_wildcards(wildcards);
hash = hash_fields(target, table_idx);
HMAP_FOR_EACH_WITH_HASH (bucket, struct cls_bucket, hmap_node, hash,
true : false;
}
- cls_rule_from_flow(&target_rule, target, wildcards, priority);
+ cls_rule_from_flow(target, wildcards, priority, &target_rule);
for (tbl = &cls->tables[0]; tbl < &cls->tables[CLS_N_FIELDS]; tbl++) {
struct cls_bucket *bucket;
{
struct cls_rule *pos;
LIST_FOR_EACH (pos, struct cls_rule, node.list, &bucket->rules) {
- if (pos->priority <= rule->priority) {
- if (pos->priority == rule->priority
- && pos->wc.wildcards == rule->wc.wildcards
+ if (pos->priority == rule->priority) {
+ if (pos->wc.wildcards == rule->wc.wildcards
&& rules_match_1wild(pos, rule, rule->table_idx))
{
list_replace(&rule->node.list, &pos->node.list);
return pos;
}
+ } else if (pos->priority < rule->priority) {
break;
}
}