memcpy(rule->flow.dl_src, dl_src, ETH_ADDR_LEN);
}
+/* Modifies 'rule' so that the Ethernet address must match 'dl_dst' exactly. */
void
cls_rule_set_dl_dst(struct cls_rule *rule, const uint8_t dl_dst[ETH_ADDR_LEN])
{
memcpy(rule->flow.dl_dst, dl_dst, ETH_ADDR_LEN);
}
+/* Modifies 'rule' so that the Ethernet address must match 'dl_dst' after each
+ * byte is ANDed with the appropriate byte in 'mask'.
+ *
+ * This function will assert-fail if 'mask' is invalid. Only 'mask' values
+ * accepted by flow_wildcards_is_dl_dst_mask_valid() are allowed. */
+void
+cls_rule_set_dl_dst_masked(struct cls_rule *rule,
+ const uint8_t dl_dst[ETH_ADDR_LEN],
+ const uint8_t mask[ETH_ADDR_LEN])
+{
+ flow_wildcards_t *wc = &rule->wc.wildcards;
+ size_t i;
+
+ *wc = flow_wildcards_set_dl_dst_mask(*wc, mask);
+ for (i = 0; i < ETH_ADDR_LEN; i++) {
+ rule->flow.dl_dst[i] = dl_dst[i] & mask[i];
+ }
+}
+
void
cls_rule_set_dl_tci(struct cls_rule *rule, ovs_be16 tci)
{
&& flow_equal(&a->flow, &b->flow));
}
+/* Returns a hash value for the flow, wildcards, and priority in 'rule',
+ * starting from 'basis'. */
+uint32_t
+cls_rule_hash(const struct cls_rule *rule, uint32_t basis)
+{
+ uint32_t h0 = flow_hash(&rule->flow, basis);
+ uint32_t h1 = flow_wildcards_hash(&rule->wc, h0);
+ return hash_int(rule->priority, h1);
+}
+
static void
format_ip_netmask(struct ds *s, const char *name, ovs_be32 ip,
ovs_be32 netmask)
int i;
+ BUILD_ASSERT_DECL(FLOW_WC_SEQ == 1);
+
if (rule->priority != OFP_DEFAULT_PRIORITY) {
ds_put_format(s, "priority=%d,", rule->priority);
}
}
if (!skip_proto && !(w & FWW_NW_PROTO)) {
if (f->dl_type == htons(ETH_TYPE_ARP)) {
- ds_put_format(s, "opcode=%"PRIu8",", f->nw_proto);
+ ds_put_format(s, "arp_op=%"PRIu8",", f->nw_proto);
} else {
ds_put_format(s, "nw_proto=%"PRIu8",", f->nw_proto);
}
ds_put_char(s, ',');
}
if (!(w & FWW_ARP_SHA)) {
- ds_put_format(s, "nd_sll="ETH_ADDR_FMT",",
+ ds_put_format(s, "nd_sll="ETH_ADDR_FMT",",
ETH_ADDR_ARGS(f->arp_sha));
}
if (!(w & FWW_ARP_THA)) {
- ds_put_format(s, "nd_tll="ETH_ADDR_FMT",",
+ ds_put_format(s, "nd_tll="ETH_ADDR_FMT",",
ETH_ADDR_ARGS(f->arp_tha));
}
} else {
* rule, even rules that cannot have any effect because the new rule matches a
* superset of their flows and has higher priority. */
struct cls_rule *
-classifier_insert(struct classifier *cls, struct cls_rule *rule)
+classifier_replace(struct classifier *cls, struct cls_rule *rule)
{
struct cls_rule *old_rule;
struct cls_table *table;
return old_rule;
}
+/* Inserts 'rule' into 'cls'. Until 'rule' is removed from 'cls', the caller
+ * must not modify or free it.
+ *
+ * 'cls' must not contain an identical rule (including wildcards, values of
+ * fixed fields, and priority). Use classifier_find_rule_exactly() to find
+ * such a rule. */
+void
+classifier_insert(struct classifier *cls, struct cls_rule *rule)
+{
+ struct cls_rule *displaced_rule = classifier_replace(cls, rule);
+ assert(!displaced_rule);
+}
+
/* Removes 'rule' from 'cls'. It is the caller's responsibility to free
* 'rule', if this is desirable. */
void
{
struct cls_table *table;
- HMAP_FOR_EACH_IN_BUCKET (table, hmap_node, flow_wildcards_hash(wc),
+ HMAP_FOR_EACH_IN_BUCKET (table, hmap_node, flow_wildcards_hash(wc, 0),
&cls->tables) {
if (flow_wildcards_equal(wc, &table->wc)) {
return table;
table = xzalloc(sizeof *table);
hmap_init(&table->rules);
table->wc = *wc;
- hmap_insert(&cls->tables, &table->hmap_node, flow_wildcards_hash(wc));
+ hmap_insert(&cls->tables, &table->hmap_node, flow_wildcards_hash(wc, 0));
return table;
}
const flow_wildcards_t wc = wildcards->wildcards;
int i;
- BUILD_ASSERT_DECL(FLOW_SIG_SIZE == 100 + FLOW_N_REGS * 4);
+ BUILD_ASSERT_DECL(FLOW_WC_SEQ == 1);
for (i = 0; i < FLOW_N_REGS; i++) {
if ((a->regs[i] ^ b->regs[i]) & wildcards->reg_masks[i]) {
&wildcards->ipv6_src_mask)
&& ipv6_equal_except(&a->ipv6_dst, &b->ipv6_dst,
&wildcards->ipv6_dst_mask)
- && (wc & FWW_ND_TARGET
+ && (wc & FWW_ND_TARGET
|| ipv6_addr_equals(&a->nd_target, &b->nd_target)));
}
const flow_wildcards_t wc = wildcards->wildcards;
int i;
- BUILD_ASSERT_DECL(FLOW_SIG_SIZE == 100 + 4 * FLOW_N_REGS);
+ BUILD_ASSERT_DECL(FLOW_WC_SEQ == 1);
for (i = 0; i < FLOW_N_REGS; i++) {
flow->regs[i] &= wildcards->reg_masks[i];