/*
- * Copyright (c) 2009, 2010, 2011 Nicira Networks.
+ * Copyright (c) 2009, 2010, 2011, 2012 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
static struct cls_table *insert_table(struct classifier *,
const struct flow_wildcards *);
-static struct cls_table *classifier_first_table(const struct classifier *);
-static struct cls_table *classifier_next_table(const struct classifier *,
- const struct cls_table *);
static void destroy_table(struct classifier *, struct cls_table *);
static struct cls_rule *find_match(const struct cls_table *,
static struct cls_rule *next_rule_in_list__(struct cls_rule *);
static struct cls_rule *next_rule_in_list(struct cls_rule *);
-static struct cls_table *
-cls_table_from_hmap_node(const struct hmap_node *node)
-{
- return node ? CONTAINER_OF(node, struct cls_table, hmap_node) : NULL;
-}
-
/* Converts the flow in 'flow' into a cls_rule in 'rule', with the given
* 'wildcards' and 'priority'. */
void
unsigned int priority, struct cls_rule *rule)
{
rule->flow = *flow;
- rule->flow.priority = 0;
+ rule->flow.skb_priority = 0;
flow_wildcards_init_exact(&rule->wc);
rule->priority = priority;
}
void
cls_rule_set_dl_vlan(struct cls_rule *rule, ovs_be16 dl_vlan)
{
+ flow_set_vlan_vid(&rule->flow, dl_vlan);
if (dl_vlan == htons(OFP_VLAN_NONE)) {
- cls_rule_set_dl_tci(rule, htons(0));
+ rule->wc.vlan_tci_mask = htons(UINT16_MAX);
} else {
- dl_vlan &= htons(VLAN_VID_MASK);
- rule->flow.vlan_tci &= ~htons(VLAN_VID_MASK);
- rule->flow.vlan_tci |= htons(VLAN_CFI) | dl_vlan;
rule->wc.vlan_tci_mask |= htons(VLAN_VID_MASK | VLAN_CFI);
}
}
void
cls_rule_set_dl_vlan_pcp(struct cls_rule *rule, uint8_t dl_vlan_pcp)
{
- dl_vlan_pcp &= 0x07;
- rule->flow.vlan_tci &= ~htons(VLAN_PCP_MASK);
- rule->flow.vlan_tci |= htons((dl_vlan_pcp << VLAN_PCP_SHIFT) | VLAN_CFI);
+ flow_set_vlan_pcp(&rule->flow, dl_vlan_pcp);
rule->wc.vlan_tci_mask |= htons(VLAN_CFI | VLAN_PCP_MASK);
}
void
cls_rule_set_tp_src(struct cls_rule *rule, ovs_be16 tp_src)
{
- rule->wc.wildcards &= ~FWW_TP_SRC;
- rule->flow.tp_src = tp_src;
+ cls_rule_set_tp_src_masked(rule, tp_src, htons(UINT16_MAX));
+}
+
+void
+cls_rule_set_tp_src_masked(struct cls_rule *rule, ovs_be16 port, ovs_be16 mask)
+{
+ rule->flow.tp_src = port & mask;
+ rule->wc.tp_src_mask = mask;
}
void
cls_rule_set_tp_dst(struct cls_rule *rule, ovs_be16 tp_dst)
{
- rule->wc.wildcards &= ~FWW_TP_DST;
- rule->flow.tp_dst = tp_dst;
+ cls_rule_set_tp_dst_masked(rule, tp_dst, htons(UINT16_MAX));
+}
+
+void
+cls_rule_set_tp_dst_masked(struct cls_rule *rule, ovs_be16 port, ovs_be16 mask)
+{
+ rule->flow.tp_dst = port & mask;
+ rule->wc.tp_dst_mask = mask;
}
void
void
cls_rule_set_icmp_type(struct cls_rule *rule, uint8_t icmp_type)
{
- rule->wc.wildcards &= ~FWW_TP_SRC;
- rule->flow.tp_src = htons(icmp_type);
+ cls_rule_set_tp_src(rule, htons(icmp_type));
}
void
cls_rule_set_icmp_code(struct cls_rule *rule, uint8_t icmp_code)
{
- rule->wc.wildcards &= ~FWW_TP_DST;
- rule->flow.tp_dst = htons(icmp_code);
+ cls_rule_set_tp_dst(rule, htons(icmp_code));
}
void
void
cls_rule_set_nd_target(struct cls_rule *rule, const struct in6_addr *target)
{
- rule->wc.wildcards &= ~FWW_ND_TARGET;
rule->flow.nd_target = *target;
+ rule->wc.nd_target_mask = in6addr_exact;
+}
+
+void
+cls_rule_set_nd_target_masked(struct cls_rule *rule,
+ const struct in6_addr *target,
+ const struct in6_addr *mask)
+{
+ rule->flow.nd_target = ipv6_addr_bitand(target, mask);
+ rule->wc.nd_target_mask = *mask;
}
/* Returns true if 'a' and 'b' have the same priority, wildcard the same
}
}
+
+static void
+format_be16_masked(struct ds *s, const char *name,
+ ovs_be16 value, ovs_be16 mask)
+{
+ if (mask != htons(0)) {
+ ds_put_format(s, "%s=", name);
+ if (mask == htons(UINT16_MAX)) {
+ ds_put_format(s, "%"PRIu16, ntohs(value));
+ } else {
+ ds_put_format(s, "0x%"PRIx16"/0x%"PRIx16,
+ ntohs(value), ntohs(mask));
+ }
+ ds_put_char(s, ',');
+ }
+}
+
void
cls_rule_format(const struct cls_rule *rule, struct ds *s)
{
int i;
- BUILD_ASSERT_DECL(FLOW_WC_SEQ == 7);
+ BUILD_ASSERT_DECL(FLOW_WC_SEQ == 10);
if (rule->priority != OFP_DEFAULT_PRIORITY) {
ds_put_format(s, "priority=%d,", rule->priority);
break;
}
if (f->nw_proto == IPPROTO_ICMP) {
- if (!(w & FWW_TP_SRC)) {
- ds_put_format(s, "icmp_type=%"PRIu16",", ntohs(f->tp_src));
- }
- if (!(w & FWW_TP_DST)) {
- ds_put_format(s, "icmp_code=%"PRIu16",", ntohs(f->tp_dst));
- }
+ format_be16_masked(s, "icmp_type", f->tp_src, wc->tp_src_mask);
+ format_be16_masked(s, "icmp_code", f->tp_dst, wc->tp_dst_mask);
} else if (f->nw_proto == IPPROTO_ICMPV6) {
- if (!(w & FWW_TP_SRC)) {
- ds_put_format(s, "icmp_type=%"PRIu16",", ntohs(f->tp_src));
- }
- if (!(w & FWW_TP_DST)) {
- ds_put_format(s, "icmp_code=%"PRIu16",", ntohs(f->tp_dst));
- }
- if (!(w & FWW_ND_TARGET)) {
- ds_put_cstr(s, "nd_target=");
- print_ipv6_addr(s, &f->nd_target);
- ds_put_char(s, ',');
- }
+ format_be16_masked(s, "icmp_type", f->tp_src, wc->tp_src_mask);
+ format_be16_masked(s, "icmp_code", f->tp_dst, wc->tp_dst_mask);
+ format_ipv6_netmask(s, "nd_target", &f->nd_target,
+ &wc->nd_target_mask);
if (!(w & FWW_ARP_SHA)) {
ds_put_format(s, "nd_sll="ETH_ADDR_FMT",",
ETH_ADDR_ARGS(f->arp_sha));
ETH_ADDR_ARGS(f->arp_tha));
}
} else {
- if (!(w & FWW_TP_SRC)) {
- ds_put_format(s, "tp_src=%"PRIu16",", ntohs(f->tp_src));
- }
- if (!(w & FWW_TP_DST)) {
- ds_put_format(s, "tp_dst=%"PRIu16",", ntohs(f->tp_dst));
- }
+ format_be16_masked(s, "tp_src", f->tp_src, wc->tp_src_mask);
+ format_be16_masked(s, "tp_dst", f->tp_dst, wc->tp_dst_mask);
}
if (s->length > start_len && ds_last(s) == ',') {
{
struct cls_table *table;
- for (table = classifier_first_table(cursor->cls); table;
- table = classifier_next_table(cursor->cls, table)) {
+ HMAP_FOR_EACH (table, hmap_node, &cursor->cls->tables) {
struct cls_rule *rule = search_table(table, cursor->target);
if (rule) {
cursor->table = table;
}
}
- for (table = classifier_next_table(cursor->cls, cursor->table); table;
- table = classifier_next_table(cursor->cls, table)) {
+ table = cursor->table;
+ HMAP_FOR_EACH_CONTINUE (table, hmap_node, &cursor->cls->tables) {
rule = search_table(table, cursor->target);
if (rule) {
cursor->table = table;
table = xzalloc(sizeof *table);
hmap_init(&table->rules);
table->wc = *wc;
+ table->is_catchall = flow_wildcards_is_catchall(&table->wc);
hmap_insert(&cls->tables, &table->hmap_node, flow_wildcards_hash(wc, 0));
return table;
}
-static struct cls_table *
-classifier_first_table(const struct classifier *cls)
-{
- return cls_table_from_hmap_node(hmap_first(&cls->tables));
-}
-
-static struct cls_table *
-classifier_next_table(const struct classifier *cls,
- const struct cls_table *table)
-{
- return cls_table_from_hmap_node(hmap_next(&cls->tables,
- &table->hmap_node));
-}
-
static void
destroy_table(struct classifier *cls, struct cls_table *table)
{
find_match(const struct cls_table *table, const struct flow *flow)
{
struct cls_rule *rule;
- struct flow f;
- f = *flow;
- flow_zero_wildcards(&f, &table->wc);
- HMAP_FOR_EACH_WITH_HASH (rule, hmap_node, flow_hash(&f, 0),
- &table->rules) {
- if (flow_equal(&f, &rule->flow)) {
+ if (table->is_catchall) {
+ HMAP_FOR_EACH (rule, hmap_node, &table->rules) {
return rule;
}
+ } else {
+ struct flow f;
+
+ f = *flow;
+ flow_zero_wildcards(&f, &table->wc);
+ HMAP_FOR_EACH_WITH_HASH (rule, hmap_node, flow_hash(&f, 0),
+ &table->rules) {
+ if (flow_equal(&f, &rule->flow)) {
+ return rule;
+ }
+ }
}
+
return NULL;
}
const flow_wildcards_t wc = wildcards->wildcards;
int i;
- BUILD_ASSERT_DECL(FLOW_WC_SEQ == 7);
+ BUILD_ASSERT_DECL(FLOW_WC_SEQ == 10);
for (i = 0; i < FLOW_N_REGS; i++) {
if ((a->regs[i] ^ b->regs[i]) & wildcards->reg_masks[i]) {
&& (wc & FWW_IN_PORT || a->in_port == b->in_port)
&& !((a->vlan_tci ^ b->vlan_tci) & wildcards->vlan_tci_mask)
&& (wc & FWW_DL_TYPE || a->dl_type == b->dl_type)
- && (wc & FWW_TP_SRC || a->tp_src == b->tp_src)
- && (wc & FWW_TP_DST || a->tp_dst == b->tp_dst)
+ && !((a->tp_src ^ b->tp_src) & wildcards->tp_src_mask)
+ && !((a->tp_dst ^ b->tp_dst) & wildcards->tp_dst_mask)
&& (wc & FWW_DL_SRC || eth_addr_equals(a->dl_src, b->dl_src))
&& (wc & FWW_DL_DST
|| (!((a->dl_dst[0] ^ b->dl_dst[0]) & 0xfe)
&wildcards->ipv6_src_mask)
&& ipv6_equal_except(&a->ipv6_dst, &b->ipv6_dst,
&wildcards->ipv6_dst_mask)
- && (wc & FWW_ND_TARGET
- || ipv6_addr_equals(&a->nd_target, &b->nd_target)));
+ && ipv6_equal_except(&a->nd_target, &b->nd_target,
+ &wildcards->nd_target_mask));
}
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