/* OFOPERATION_DELETE. */
enum ofp_flow_removed_reason reason; /* Reason flow was removed. */
- ovs_be64 flow_cookie; /* Rule's old flow cookie. */
- uint16_t idle_timeout; /* Rule's old idle timeout. */
- uint16_t hard_timeout; /* Rule's old hard timeout. */
- bool send_flow_removed; /* Rule's old 'send_flow_removed'. */
- enum ofperr error; /* 0 if no error. */
+ ovs_be64 flow_cookie; /* Rule's old flow cookie. */
+ uint16_t idle_timeout; /* Rule's old idle timeout. */
+ uint16_t hard_timeout; /* Rule's old hard timeout. */
+ enum ofputil_flow_mod_flags flags; /* Rule's old flags. */
+ enum ofperr error; /* 0 if no error. */
};
static struct ofoperation *ofoperation_create(struct ofopgroup *,
static void eviction_group_add_rule(struct rule *);
static void eviction_group_remove_rule(struct rule *);
+/* Criteria that flow_mod and other operations use for selecting rules on
+ * which to operate. */
+struct rule_criteria {
+ /* An OpenFlow table or 255 for all tables. */
+ uint8_t table_id;
+
+ /* OpenFlow matching criteria. Interpreted different in "loose" way by
+ * collect_rules_loose() and "strict" way by collect_rules_strict(), as
+ * defined in the OpenFlow spec. */
+ struct cls_rule cr;
+
+ /* Matching criteria for the OpenFlow cookie. Consider a bit B in a rule's
+ * cookie and the corresponding bits C in 'cookie' and M in 'cookie_mask'.
+ * The rule will not be selected if M is 1 and B != C. */
+ ovs_be64 cookie;
+ ovs_be64 cookie_mask;
+
+ /* Selection based on actions within a rule:
+ *
+ * If out_port != OFPP_ANY, selects only rules that output to out_port.
+ * If out_group != OFPG_ALL, select only rules that output to out_group. */
+ ofp_port_t out_port;
+ uint32_t out_group;
+};
+
+static void rule_criteria_init(struct rule_criteria *, uint8_t table_id,
+ const struct match *match,
+ unsigned int priority,
+ ovs_be64 cookie, ovs_be64 cookie_mask,
+ ofp_port_t out_port, uint32_t out_group);
+static void rule_criteria_destroy(struct rule_criteria *);
+
/* ofport. */
static void ofport_destroy__(struct ofport *);
static void ofport_destroy(struct ofport *);
}
/* Sets number of upcall handler threads. The default is
- * (number of online cores - 1). */
+ * (number of online cores - 2). */
void
ofproto_set_n_handler_threads(unsigned limit)
{
if (limit) {
n_handler_threads = limit;
} else {
- n_handler_threads = MAX(1, sysconf(_SC_NPROCESSORS_ONLN) - 1);
+ int n_proc = sysconf(_SC_NPROCESSORS_ONLN);
+ n_handler_threads = n_proc > 2 ? n_proc - 2 : 1;
}
}
ovs_assert(list_is_empty(&ofproto->pending));
ovs_assert(!ofproto->n_pending);
- if (ofproto->meters) {
- meter_delete(ofproto, 1, ofproto->meter_features.max_meters);
- free(ofproto->meters);
- }
-
delete_group(ofproto, OFPG_ALL);
ovs_rwlock_destroy(&ofproto->groups_rwlock);
hmap_destroy(&ofproto->groups);
return;
}
+ if (p->meters) {
+ meter_delete(p, 1, p->meter_features.max_meters);
+ p->meter_features.max_meters = 0;
+ free(p->meters);
+ p->meters = NULL;
+ }
+
ofproto_flush__(p);
HMAP_FOR_EACH_SAFE (ofport, next_ofport, hmap_node, &p->ports) {
ofport_destroy(ofport);
struct oftable *table = &p->tables[i];
struct eviction_group *evg;
struct cls_cursor cursor;
- struct cls_rule cr;
struct rule *rule;
if (!table->eviction_fields) {
}
ovs_rwlock_rdlock(&table->cls.rwlock);
- cls_cursor_init(&cursor, &table->cls, &cr);
+ cls_cursor_init(&cursor, &table->cls, NULL);
CLS_CURSOR_FOR_EACH (rule, cr, &cursor) {
if (!rule->eviction_group
&& (rule->idle_timeout || rule->hard_timeout)) {
(TABLE) != NULL; \
(TABLE) = next_matching_table(OFPROTO, TABLE, TABLE_ID))
-/* Searches 'ofproto' for rules in table 'table_id' (or in all tables, if
- * 'table_id' is 0xff) that match 'match' in the "loose" way required for
- * OpenFlow OFPFC_MODIFY and OFPFC_DELETE requests and puts them on list
- * 'rules'.
+/* Initializes 'criteria' in a straightforward way based on the other
+ * parameters.
*
- * If 'out_port' is anything other than OFPP_ANY, then only rules that output
- * to 'out_port' are included.
+ * For "loose" matching, the 'priority' parameter is unimportant and may be
+ * supplied as 0. */
+static void
+rule_criteria_init(struct rule_criteria *criteria, uint8_t table_id,
+ const struct match *match, unsigned int priority,
+ ovs_be64 cookie, ovs_be64 cookie_mask,
+ ofp_port_t out_port, uint32_t out_group)
+{
+ criteria->table_id = table_id;
+ cls_rule_init(&criteria->cr, match, priority);
+ criteria->cookie = cookie;
+ criteria->cookie_mask = cookie_mask;
+ criteria->out_port = out_port;
+ criteria->out_group = out_group;
+}
+
+static void
+rule_criteria_destroy(struct rule_criteria *criteria)
+{
+ cls_rule_destroy(&criteria->cr);
+}
+
+static enum ofperr
+collect_rule(struct rule *rule, const struct rule_criteria *c,
+ struct list *rules)
+{
+ if (ofproto_rule_is_hidden(rule)) {
+ return 0;
+ } else if (rule->pending) {
+ return OFPROTO_POSTPONE;
+ } else {
+ if ((c->table_id == rule->table_id || c->table_id == 0xff)
+ && ofproto_rule_has_out_port(rule, c->out_port)
+ && ofproto_rule_has_out_group(rule, c->out_group)
+ && !((rule->flow_cookie ^ c->cookie) & c->cookie_mask)) {
+ list_push_back(rules, &rule->ofproto_node);
+ }
+ return 0;
+ }
+}
+
+/* Searches 'ofproto' for rules that match the criteria in 'criteria'. Matches
+ * on classifiers rules are done in the "loose" way required for OpenFlow
+ * OFPFC_MODIFY and OFPFC_DELETE requests. Puts the selected rules on list
+ * 'rules'.
*
* Hidden rules are always omitted.
*
* Returns 0 on success, otherwise an OpenFlow error code. */
static enum ofperr
-collect_rules_loose(struct ofproto *ofproto, uint8_t table_id,
- const struct match *match,
- ovs_be64 cookie, ovs_be64 cookie_mask,
- ofp_port_t out_port, uint32_t out_group,
- struct list *rules)
+collect_rules_loose(struct ofproto *ofproto,
+ const struct rule_criteria *criteria, struct list *rules)
{
struct oftable *table;
- struct cls_rule cr;
enum ofperr error;
- error = check_table_id(ofproto, table_id);
+ error = check_table_id(ofproto, criteria->table_id);
if (error) {
return error;
}
list_init(rules);
- cls_rule_init(&cr, match, 0);
- if (cookie_mask == htonll(UINT64_MAX)) {
+ if (criteria->cookie_mask == htonll(UINT64_MAX)) {
struct rule *rule;
- HINDEX_FOR_EACH_WITH_HASH (rule, cookie_node, hash_cookie(cookie),
+ HINDEX_FOR_EACH_WITH_HASH (rule, cookie_node,
+ hash_cookie(criteria->cookie),
&ofproto->cookies) {
- if (table_id != rule->table_id && table_id != 0xff) {
- continue;
- }
- if (ofproto_rule_is_hidden(rule)) {
- continue;
- }
- if (cls_rule_is_loose_match(&rule->cr, &cr.match)) {
- if (rule->pending) {
- error = OFPROTO_POSTPONE;
- goto exit;
- }
- if (rule->flow_cookie == cookie /* Hash collisions possible. */
- && ofproto_rule_has_out_port(rule, out_port)
- && ofproto_rule_has_out_group(rule, out_group)) {
- list_push_back(rules, &rule->ofproto_node);
+ if (cls_rule_is_loose_match(&rule->cr, &criteria->cr.match)) {
+ error = collect_rule(rule, criteria, rules);
+ if (error) {
+ break;
}
}
}
- goto exit;
- }
-
- FOR_EACH_MATCHING_TABLE (table, table_id, ofproto) {
- struct cls_cursor cursor;
- struct rule *rule;
+ } else {
+ FOR_EACH_MATCHING_TABLE (table, criteria->table_id, ofproto) {
+ struct cls_cursor cursor;
+ struct rule *rule;
- ovs_rwlock_rdlock(&table->cls.rwlock);
- cls_cursor_init(&cursor, &table->cls, &cr);
- CLS_CURSOR_FOR_EACH (rule, cr, &cursor) {
- if (rule->pending) {
- ovs_rwlock_unlock(&table->cls.rwlock);
- error = OFPROTO_POSTPONE;
- goto exit;
- }
- if (!ofproto_rule_is_hidden(rule)
- && ofproto_rule_has_out_port(rule, out_port)
- && ofproto_rule_has_out_group(rule, out_group)
- && !((rule->flow_cookie ^ cookie) & cookie_mask)) {
- list_push_back(rules, &rule->ofproto_node);
+ ovs_rwlock_rdlock(&table->cls.rwlock);
+ cls_cursor_init(&cursor, &table->cls, &criteria->cr);
+ CLS_CURSOR_FOR_EACH (rule, cr, &cursor) {
+ error = collect_rule(rule, criteria, rules);
+ if (error) {
+ break;
+ }
}
+ ovs_rwlock_unlock(&table->cls.rwlock);
}
- ovs_rwlock_unlock(&table->cls.rwlock);
}
-exit:
- cls_rule_destroy(&cr);
return error;
}
-/* Searches 'ofproto' for rules in table 'table_id' (or in all tables, if
- * 'table_id' is 0xff) that match 'match' in the "strict" way required for
- * OpenFlow OFPFC_MODIFY_STRICT and OFPFC_DELETE_STRICT requests and puts them
- * on list 'rules'.
- *
- * If 'out_port' is anything other than OFPP_ANY, then only rules that output
- * to 'out_port' are included.
+/* Searches 'ofproto' for rules that match the criteria in 'criteria'. Matches
+ * on classifiers rules are done in the "strict" way required for OpenFlow
+ * OFPFC_MODIFY_STRICT and OFPFC_DELETE_STRICT requests. Puts the selected
+ * rules on list 'rules'.
*
* Hidden rules are always omitted.
*
* Returns 0 on success, otherwise an OpenFlow error code. */
static enum ofperr
-collect_rules_strict(struct ofproto *ofproto, uint8_t table_id,
- const struct match *match, unsigned int priority,
- ovs_be64 cookie, ovs_be64 cookie_mask,
- ofp_port_t out_port, uint32_t out_group,
- struct list *rules)
+collect_rules_strict(struct ofproto *ofproto,
+ const struct rule_criteria *criteria, struct list *rules)
{
struct oftable *table;
- struct cls_rule cr;
int error;
- error = check_table_id(ofproto, table_id);
+ error = check_table_id(ofproto, criteria->table_id);
if (error) {
return error;
}
list_init(rules);
- cls_rule_init(&cr, match, priority);
- if (cookie_mask == htonll(UINT64_MAX)) {
+ if (criteria->cookie_mask == htonll(UINT64_MAX)) {
struct rule *rule;
- HINDEX_FOR_EACH_WITH_HASH (rule, cookie_node, hash_cookie(cookie),
+ HINDEX_FOR_EACH_WITH_HASH (rule, cookie_node,
+ hash_cookie(criteria->cookie),
&ofproto->cookies) {
- if (table_id != rule->table_id && table_id != 0xff) {
- continue;
- }
- if (ofproto_rule_is_hidden(rule)) {
- continue;
- }
- if (cls_rule_equal(&rule->cr, &cr)) {
- if (rule->pending) {
- error = OFPROTO_POSTPONE;
- goto exit;
- }
- if (rule->flow_cookie == cookie /* Hash collisions possible. */
- && ofproto_rule_has_out_port(rule, out_port)
- && ofproto_rule_has_out_group(rule, out_group)) {
- list_push_back(rules, &rule->ofproto_node);
+ if (cls_rule_equal(&rule->cr, &criteria->cr)) {
+ error = collect_rule(rule, criteria, rules);
+ if (error) {
+ break;
}
}
}
- goto exit;
- }
-
- FOR_EACH_MATCHING_TABLE (table, table_id, ofproto) {
- struct rule *rule;
+ } else {
+ FOR_EACH_MATCHING_TABLE (table, criteria->table_id, ofproto) {
+ struct rule *rule;
- ovs_rwlock_rdlock(&table->cls.rwlock);
- rule = rule_from_cls_rule(classifier_find_rule_exactly(&table->cls,
- &cr));
- ovs_rwlock_unlock(&table->cls.rwlock);
- if (rule) {
- if (rule->pending) {
- error = OFPROTO_POSTPONE;
- goto exit;
- }
- if (!ofproto_rule_is_hidden(rule)
- && ofproto_rule_has_out_port(rule, out_port)
- && ofproto_rule_has_out_group(rule, out_group)
- && !((rule->flow_cookie ^ cookie) & cookie_mask)) {
- list_push_back(rules, &rule->ofproto_node);
+ ovs_rwlock_rdlock(&table->cls.rwlock);
+ rule = rule_from_cls_rule(classifier_find_rule_exactly(
+ &table->cls, &criteria->cr));
+ ovs_rwlock_unlock(&table->cls.rwlock);
+ if (rule) {
+ error = collect_rule(rule, criteria, rules);
+ if (error) {
+ break;
+ }
}
}
}
-exit:
- cls_rule_destroy(&cr);
- return 0;
+ return error;
}
/* Returns 'age_ms' (a duration in milliseconds), converted to seconds and
{
struct ofproto *ofproto = ofconn_get_ofproto(ofconn);
struct ofputil_flow_stats_request fsr;
+ struct rule_criteria criteria;
struct list replies;
struct list rules;
struct rule *rule;
return error;
}
- error = collect_rules_loose(ofproto, fsr.table_id, &fsr.match,
- fsr.cookie, fsr.cookie_mask,
- fsr.out_port, fsr.out_group, &rules);
+ rule_criteria_init(&criteria, fsr.table_id, &fsr.match, 0, fsr.cookie,
+ fsr.cookie_mask, fsr.out_port, fsr.out_group);
+ error = collect_rules_loose(ofproto, &criteria, &rules);
+ rule_criteria_destroy(&criteria);
if (error) {
return error;
}
fs.hard_timeout = rule->hard_timeout;
ovs_mutex_unlock(&rule->timeout_mutex);
- fs.flags = 0;
- if (rule->send_flow_removed) {
- fs.flags |= OFPUTIL_FF_SEND_FLOW_REM;
- /* FIXME: Implement OFPUTIL_FF_NO_PKT_COUNTS and
- OFPUTIL_FF_NO_BYT_COUNTS. */
- }
+ fs.flags = rule->flags;
+
ofputil_append_flow_stats_reply(&fs, &replies);
}
ofconn_send_replies(ofconn, &replies);
struct ofputil_flow_stats_request request;
struct ofputil_aggregate_stats stats;
bool unknown_packets, unknown_bytes;
+ struct rule_criteria criteria;
struct ofpbuf *reply;
struct list rules;
struct rule *rule;
return error;
}
- error = collect_rules_loose(ofproto, request.table_id, &request.match,
- request.cookie, request.cookie_mask,
- request.out_port, request.out_group, &rules);
+ rule_criteria_init(&criteria, request.table_id, &request.match, 0,
+ request.cookie, request.cookie_mask,
+ request.out_port, request.out_group);
+ error = collect_rules_loose(ofproto, &criteria, &rules);
+ rule_criteria_destroy(&criteria);
if (error) {
return error;
}
ovs_mutex_unlock(&rule->timeout_mutex);
rule->table_id = table - ofproto->tables;
- rule->send_flow_removed = (fm->flags & OFPUTIL_FF_SEND_FLOW_REM) != 0;
+ rule->flags = fm->flags & OFPUTIL_FF_STATE;
+
rule->ofpacts = xmemdup(fm->ofpacts, fm->ofpacts_len);
rule->ofpacts_len = fm->ofpacts_len;
rule->meter_id = find_meter(rule->ofpacts, rule->ofpacts_len);
rule->hard_timeout = fm->hard_timeout;
ovs_mutex_unlock(&rule->timeout_mutex);
- rule->send_flow_removed = (fm->flags
- & OFPUTIL_FF_SEND_FLOW_REM) != 0;
-
+ rule->flags = fm->flags & OFPUTIL_FF_STATE;
if (fm->idle_timeout || fm->hard_timeout) {
if (!rule->eviction_group) {
eviction_group_add_rule(rule);
struct ofputil_flow_mod *fm,
const struct ofp_header *request)
{
+ struct rule_criteria criteria;
struct list rules;
int error;
- error = collect_rules_loose(ofproto, fm->table_id, &fm->match,
- fm->cookie, fm->cookie_mask,
- OFPP_ANY, OFPG11_ANY, &rules);
+ rule_criteria_init(&criteria, fm->table_id, &fm->match, 0,
+ fm->cookie, fm->cookie_mask, OFPP_ANY, OFPG11_ANY);
+ error = collect_rules_loose(ofproto, &criteria, &rules);
+ rule_criteria_destroy(&criteria);
+
if (error) {
return error;
} else if (list_is_empty(&rules)) {
struct ofputil_flow_mod *fm,
const struct ofp_header *request)
{
+ struct rule_criteria criteria;
struct list rules;
int error;
- error = collect_rules_strict(ofproto, fm->table_id, &fm->match,
- fm->priority, fm->cookie, fm->cookie_mask,
- OFPP_ANY, OFPG11_ANY, &rules);
+ rule_criteria_init(&criteria, fm->table_id, &fm->match, fm->priority,
+ fm->cookie, fm->cookie_mask, OFPP_ANY, OFPG11_ANY);
+ error = collect_rules_strict(ofproto, &criteria, &rules);
+ rule_criteria_destroy(&criteria);
+
if (error) {
return error;
} else if (list_is_empty(&rules)) {
const struct ofputil_flow_mod *fm,
const struct ofp_header *request)
{
+ struct rule_criteria criteria;
struct list rules;
enum ofperr error;
- error = collect_rules_loose(ofproto, fm->table_id, &fm->match,
- fm->cookie, fm->cookie_mask,
- fm->out_port, fm->out_group, &rules);
+ rule_criteria_init(&criteria, fm->table_id, &fm->match, 0,
+ fm->cookie, fm->cookie_mask,
+ fm->out_port, fm->out_group);
+ error = collect_rules_loose(ofproto, &criteria, &rules);
+ rule_criteria_destroy(&criteria);
+
return (error ? error
: !list_is_empty(&rules) ? delete_flows__(ofproto, ofconn, request,
&rules, OFPRR_DELETE)
const struct ofputil_flow_mod *fm,
const struct ofp_header *request)
{
+ struct rule_criteria criteria;
struct list rules;
enum ofperr error;
- error = collect_rules_strict(ofproto, fm->table_id, &fm->match,
- fm->priority, fm->cookie, fm->cookie_mask,
- fm->out_port, fm->out_group, &rules);
+ rule_criteria_init(&criteria, fm->table_id, &fm->match, fm->priority,
+ fm->cookie, fm->cookie_mask,
+ fm->out_port, fm->out_group);
+ error = collect_rules_strict(ofproto, &criteria, &rules);
+ rule_criteria_destroy(&criteria);
+
return (error ? error
: list_is_singleton(&rules) ? delete_flows__(ofproto, ofconn,
request, &rules,
{
struct ofputil_flow_removed fr;
- if (ofproto_rule_is_hidden(rule) || !rule->send_flow_removed) {
+ if (ofproto_rule_is_hidden(rule) ||
+ !(rule->flags & OFPUTIL_FF_SEND_FLOW_REM)) {
return;
}
if (mm.command != OFPMC13_DELETE) {
/* Fails also when meters are not implemented by the provider. */
- if (!meter_id || meter_id > ofproto->meter_features.max_meters) {
+ if (meter_id == 0 || meter_id > OFPM13_MAX) {
error = OFPERR_OFPMMFC_INVALID_METER;
goto exit_free_bands;
+ } else if (meter_id > ofproto->meter_features.max_meters) {
+ error = OFPERR_OFPMMFC_OUT_OF_METERS;
+ goto exit_free_bands;
}
if (mm.meter.n_bands > ofproto->meter_features.max_bands) {
error = OFPERR_OFPMMFC_OUT_OF_BANDS;
op->ofpacts = NULL;
op->ofpacts_len = 0;
}
- rule->send_flow_removed = op->send_flow_removed;
+ rule->flags = op->flags;
}
break;
op->idle_timeout = rule->idle_timeout;
op->hard_timeout = rule->hard_timeout;
ovs_mutex_unlock(&rule->timeout_mutex);
- op->send_flow_removed = rule->send_flow_removed;
+ op->flags = rule->flags;
group->n_running++;