/*
- * Copyright (c) 2009, 2010 Nicira Networks.
+ * Copyright (c) 2009, 2010, 2011 Nicira Networks.
* Copyright (c) 2010 Jean Tourrilhes - HP-Labs.
*
* Licensed under the Apache License, Version 2.0 (the "License");
#include <netinet/in.h>
#include <stdbool.h>
#include <stdlib.h>
+#include "byte-order.h"
#include "classifier.h"
#include "coverage.h"
#include "discovery.h"
#include "hmap.h"
#include "in-band.h"
#include "mac-learning.h"
+#include "multipath.h"
#include "netdev.h"
#include "netflow.h"
+#include "netlink.h"
+#include "nx-match.h"
#include "odp-util.h"
#include "ofp-print.h"
#include "ofp-util.h"
#include "unixctl.h"
#include "vconn.h"
#include "vlog.h"
-#include "xtoxll.h"
-VLOG_DEFINE_THIS_MODULE(ofproto)
+VLOG_DEFINE_THIS_MODULE(ofproto);
+
+COVERAGE_DEFINE(facet_changed_rule);
+COVERAGE_DEFINE(facet_revalidate);
+COVERAGE_DEFINE(odp_overflow);
+COVERAGE_DEFINE(ofproto_agg_request);
+COVERAGE_DEFINE(ofproto_costly_flags);
+COVERAGE_DEFINE(ofproto_ctlr_action);
+COVERAGE_DEFINE(ofproto_del_rule);
+COVERAGE_DEFINE(ofproto_error);
+COVERAGE_DEFINE(ofproto_expiration);
+COVERAGE_DEFINE(ofproto_expired);
+COVERAGE_DEFINE(ofproto_flows_req);
+COVERAGE_DEFINE(ofproto_flush);
+COVERAGE_DEFINE(ofproto_invalidated);
+COVERAGE_DEFINE(ofproto_no_packet_in);
+COVERAGE_DEFINE(ofproto_ofconn_stuck);
+COVERAGE_DEFINE(ofproto_ofp2odp);
+COVERAGE_DEFINE(ofproto_packet_in);
+COVERAGE_DEFINE(ofproto_packet_out);
+COVERAGE_DEFINE(ofproto_queue_req);
+COVERAGE_DEFINE(ofproto_recv_openflow);
+COVERAGE_DEFINE(ofproto_reinit_ports);
+COVERAGE_DEFINE(ofproto_unexpected_rule);
+COVERAGE_DEFINE(ofproto_uninstallable);
+COVERAGE_DEFINE(ofproto_update_port);
#include "sflow_api.h"
-enum {
- TABLEID_HASH = 0,
- TABLEID_CLASSIFIER = 1
-};
-
+struct rule;
struct ofport {
struct hmap_node hmap_node; /* In struct ofproto's "ports" hmap. */
static void ofport_free(struct ofport *);
static void hton_ofp_phy_port(struct ofp_phy_port *);
-static int xlate_actions(const union ofp_action *in, size_t n_in,
- const flow_t *flow, struct ofproto *ofproto,
- const struct ofpbuf *packet,
- struct odp_actions *out, tag_type *tags,
- bool *may_set_up_flow, uint16_t *nf_output_iface);
+struct action_xlate_ctx {
+/* action_xlate_ctx_init() initializes these members. */
-struct rule {
- struct cls_rule cr;
-
- uint64_t flow_cookie; /* Controller-issued identifier.
- (Kept in network-byte order.) */
- uint16_t idle_timeout; /* In seconds from time of last use. */
- uint16_t hard_timeout; /* In seconds from time of creation. */
- bool send_flow_removed; /* Send a flow removed message? */
- long long int used; /* Last-used time (0 if never used). */
- long long int created; /* Creation time. */
- uint64_t packet_count; /* Number of packets received. */
- uint64_t byte_count; /* Number of bytes received. */
- uint64_t accounted_bytes; /* Number of bytes passed to account_cb. */
- tag_type tags; /* Tags (set only by hooks). */
- struct netflow_flow nf_flow; /* Per-flow NetFlow tracking data. */
+ /* The ofproto. */
+ struct ofproto *ofproto;
- /* If 'super' is non-NULL, this rule is a subrule, that is, it is an
- * exact-match rule (having cr.wc.wildcards of 0) generated from the
- * wildcard rule 'super'. In this case, 'list' is an element of the
- * super-rule's list.
- *
- * If 'super' is NULL, this rule is a super-rule, and 'list' is the head of
- * a list of subrules. A super-rule with no wildcards (where
- * cr.wc.wildcards is 0) will never have any subrules. */
- struct rule *super;
- struct list list;
+ /* Flow to which the OpenFlow actions apply. xlate_actions() will modify
+ * this flow when actions change header fields. */
+ struct flow flow;
- /* OpenFlow actions.
- *
- * 'n_actions' is the number of elements in the 'actions' array. A single
- * action may take up more more than one element's worth of space.
- *
- * A subrule has no actions (it uses the super-rule's actions). */
- int n_actions;
- union ofp_action *actions;
+ /* The packet corresponding to 'flow', or a null pointer if we are
+ * revalidating without a packet to refer to. */
+ const struct ofpbuf *packet;
- /* Datapath actions.
+ /* If nonnull, called just before executing a resubmit action.
*
- * A super-rule with wildcard fields never has ODP actions (since the
- * datapath only supports exact-match flows). */
- bool installed; /* Installed in datapath? */
- bool may_install; /* True ordinarily; false if actions must
+ * This is normally null so the client has to set it manually after
+ * calling action_xlate_ctx_init(). */
+ void (*resubmit_hook)(struct action_xlate_ctx *, const struct rule *);
+
+/* xlate_actions() initializes and uses these members. The client might want
+ * to look at them after it returns. */
+
+ struct ofpbuf *odp_actions; /* Datapath actions. */
+ tag_type tags; /* Tags associated with OFPP_NORMAL actions. */
+ bool may_set_up_flow; /* True ordinarily; false if the actions must
* be reassessed for every packet. */
- int n_odp_actions;
- union odp_action *odp_actions;
+ uint16_t nf_output_iface; /* Output interface index for NetFlow. */
+
+/* xlate_actions() initializes and uses these members, but the client has no
+ * reason to look at them. */
+
+ int recurse; /* Recursion level, via xlate_table_action. */
+ int last_pop_priority; /* Offset in 'odp_actions' just past most
+ * recently added ODPAT_SET_PRIORITY. */
};
-static inline bool
-rule_is_hidden(const struct rule *rule)
-{
- /* Subrules are merely an implementation detail, so hide them from the
- * controller. */
- if (rule->super != NULL) {
- return true;
- }
+static void action_xlate_ctx_init(struct action_xlate_ctx *,
+ struct ofproto *, const struct flow *,
+ const struct ofpbuf *);
+static struct ofpbuf *xlate_actions(struct action_xlate_ctx *,
+ const union ofp_action *in, size_t n_in);
- /* Rules with priority higher than UINT16_MAX are set up by ofproto itself
- * (e.g. by in-band control) and are intentionally hidden from the
- * controller. */
- if (rule->cr.priority > UINT16_MAX) {
- return true;
- }
+/* An OpenFlow flow. */
+struct rule {
+ long long int used; /* Time last used; time created if not used. */
+ long long int created; /* Creation time. */
- return false;
-}
+ /* These statistics:
+ *
+ * - Do include packets and bytes from facets that have been deleted or
+ * whose own statistics have been folded into the rule.
+ *
+ * - Do include packets and bytes sent "by hand" that were accounted to
+ * the rule without any facet being involved (this is a rare corner
+ * case in rule_execute()).
+ *
+ * - Do not include packet or bytes that can be obtained from any facet's
+ * packet_count or byte_count member or that can be obtained from the
+ * datapath by, e.g., dpif_flow_get() for any facet.
+ */
+ uint64_t packet_count; /* Number of packets received. */
+ uint64_t byte_count; /* Number of bytes received. */
+
+ ovs_be64 flow_cookie; /* Controller-issued identifier. */
+
+ struct cls_rule cr; /* In owning ofproto's classifier. */
+ uint16_t idle_timeout; /* In seconds from time of last use. */
+ uint16_t hard_timeout; /* In seconds from time of creation. */
+ bool send_flow_removed; /* Send a flow removed message? */
+ int n_actions; /* Number of elements in actions[]. */
+ union ofp_action *actions; /* OpenFlow actions. */
+ struct list facets; /* List of "struct facet"s. */
+};
+
+static struct rule *rule_from_cls_rule(const struct cls_rule *);
+static bool rule_is_hidden(const struct rule *);
-static struct rule *rule_create(struct ofproto *, struct rule *super,
+static struct rule *rule_create(const struct cls_rule *,
const union ofp_action *, size_t n_actions,
uint16_t idle_timeout, uint16_t hard_timeout,
- uint64_t flow_cookie, bool send_flow_removed);
-static void rule_free(struct rule *);
+ ovs_be64 flow_cookie, bool send_flow_removed);
static void rule_destroy(struct ofproto *, struct rule *);
-static struct rule *rule_from_cls_rule(const struct cls_rule *);
-static void rule_insert(struct ofproto *, struct rule *,
- struct ofpbuf *packet, uint16_t in_port);
+static void rule_free(struct rule *);
+
+static struct rule *rule_lookup(struct ofproto *, const struct flow *);
+static void rule_insert(struct ofproto *, struct rule *);
static void rule_remove(struct ofproto *, struct rule *);
-static bool rule_make_actions(struct ofproto *, struct rule *,
- const struct ofpbuf *packet);
-static void rule_install(struct ofproto *, struct rule *,
- struct rule *displaced_rule);
-static void rule_uninstall(struct ofproto *, struct rule *);
-static void rule_post_uninstall(struct ofproto *, struct rule *);
-static void send_flow_removed(struct ofproto *p, struct rule *rule,
- long long int now, uint8_t reason);
+
+static void rule_send_removed(struct ofproto *, struct rule *, uint8_t reason);
+
+/* An exact-match instantiation of an OpenFlow flow. */
+struct facet {
+ long long int used; /* Time last used; time created if not used. */
+
+ /* These statistics:
+ *
+ * - Do include packets and bytes sent "by hand", e.g. with
+ * dpif_execute().
+ *
+ * - Do include packets and bytes that were obtained from the datapath
+ * when a flow was deleted (e.g. dpif_flow_del()) or when its
+ * statistics were reset (e.g. dpif_flow_put() with ODPPF_ZERO_STATS).
+ *
+ * - Do not include any packets or bytes that can currently be obtained
+ * from the datapath by, e.g., dpif_flow_get().
+ */
+ uint64_t packet_count; /* Number of packets received. */
+ uint64_t byte_count; /* Number of bytes received. */
+
+ /* Number of bytes passed to account_cb. This may include bytes that can
+ * currently obtained from the datapath (thus, it can be greater than
+ * byte_count). */
+ uint64_t accounted_bytes;
+
+ struct hmap_node hmap_node; /* In owning ofproto's 'facets' hmap. */
+ struct list list_node; /* In owning rule's 'facets' list. */
+ struct rule *rule; /* Owning rule. */
+ struct flow flow; /* Exact-match flow. */
+ bool installed; /* Installed in datapath? */
+ bool may_install; /* True ordinarily; false if actions must
+ * be reassessed for every packet. */
+ size_t actions_len; /* Number of bytes in actions[]. */
+ struct nlattr *actions; /* Datapath actions. */
+ tag_type tags; /* Tags (set only by hooks). */
+ struct netflow_flow nf_flow; /* Per-flow NetFlow tracking data. */
+};
+
+static struct facet *facet_create(struct ofproto *, struct rule *,
+ const struct flow *,
+ const struct ofpbuf *packet);
+static void facet_remove(struct ofproto *, struct facet *);
+static void facet_free(struct facet *);
+
+static struct facet *facet_lookup_valid(struct ofproto *, const struct flow *);
+static bool facet_revalidate(struct ofproto *, struct facet *);
+
+static void facet_install(struct ofproto *, struct facet *, bool zero_stats);
+static void facet_uninstall(struct ofproto *, struct facet *);
+static void facet_flush_stats(struct ofproto *, struct facet *);
+
+static void facet_make_actions(struct ofproto *, struct facet *,
+ const struct ofpbuf *packet);
+static void facet_update_stats(struct ofproto *, struct facet *,
+ const struct odp_flow_stats *);
/* ofproto supports two kinds of OpenFlow connections:
*
struct list node; /* In struct ofproto's "all_conns" list. */
struct rconn *rconn; /* OpenFlow connection. */
enum ofconn_type type; /* Type. */
+ enum nx_flow_format flow_format; /* Currently selected flow format. */
/* OFPT_PACKET_IN related data. */
struct rconn_packet_counter *packet_in_counter; /* # queued on 'rconn'. */
static struct ofconn *ofconn_create(struct ofproto *, struct rconn *,
enum ofconn_type);
static void ofconn_destroy(struct ofconn *);
-static void ofconn_run(struct ofconn *, struct ofproto *);
+static void ofconn_run(struct ofconn *);
static void ofconn_wait(struct ofconn *);
static bool ofconn_receives_async_msgs(const struct ofconn *);
static char *ofconn_make_name(const struct ofproto *, const char *target);
long long int next_in_band_update;
struct sockaddr_in *extra_in_band_remotes;
size_t n_extra_remotes;
+ int in_band_queue;
/* Flow table. */
struct classifier cls;
- bool need_revalidate;
long long int next_expiration;
+
+ /* Facets. */
+ struct hmap facets;
+ bool need_revalidate;
struct tag_set revalidate_set;
- bool tun_id_from_cookie;
/* OpenFlow connections. */
struct hmap controllers; /* Controller "struct ofconn"s. */
struct mac_learning *ml;
};
+/* Map from dpif name to struct ofproto, for use by unixctl commands. */
+static struct shash all_ofprotos = SHASH_INITIALIZER(&all_ofprotos);
+
static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
static const struct ofhooks default_ofhooks;
static uint64_t pick_datapath_id(const struct ofproto *);
static uint64_t pick_fallback_dpid(void);
-static void ofproto_expire(struct ofproto *);
-
-static void update_stats(struct ofproto *, struct rule *,
- const struct odp_flow_stats *);
-static bool revalidate_rule(struct ofproto *p, struct rule *rule);
-static void revalidate_cb(struct cls_rule *rule_, void *p_);
+static int ofproto_expire(struct ofproto *);
static void handle_odp_msg(struct ofproto *, struct ofpbuf *);
-static void handle_openflow(struct ofconn *, struct ofproto *,
- struct ofpbuf *);
-
-static void refresh_port_groups(struct ofproto *);
+static void handle_openflow(struct ofconn *, struct ofpbuf *);
static struct ofport *get_port(const struct ofproto *, uint16_t odp_port);
static void update_port(struct ofproto *, const char *devname);
static int init_ports(struct ofproto *);
static void reinit_ports(struct ofproto *);
+static void ofproto_unixctl_init(void);
+
int
ofproto_create(const char *datapath, const char *datapath_type,
const struct ofhooks *ofhooks, void *aux,
*ofprotop = NULL;
+ ofproto_unixctl_init();
+
/* Connect to datapath and start listening for messages. */
error = dpif_open(datapath, datapath_type, &dpif);
if (error) {
/* Initialize submodules. */
p->switch_status = switch_status_create(p);
- p->in_band = NULL;
p->fail_open = NULL;
p->netflow = NULL;
p->sflow = NULL;
+ /* Initialize in-band control. */
+ p->in_band = NULL;
+ p->in_band_queue = -1;
+
/* Initialize flow table. */
classifier_init(&p->cls);
- p->need_revalidate = false;
p->next_expiration = time_msec() + 1000;
+
+ /* Initialize facet table. */
+ hmap_init(&p->facets);
+ p->need_revalidate = false;
tag_set_init(&p->revalidate_set);
/* Initialize OpenFlow connections. */
p->datapath_id = pick_datapath_id(p);
VLOG_INFO("using datapath ID %016"PRIx64, p->datapath_id);
+ shash_add_once(&all_ofprotos, dpif_name(p->dpif), p);
+
*ofprotop = p;
return 0;
}
if (ofproto->in_band) {
in_band_set_remotes(ofproto->in_band, addrs, n_addrs);
}
+ in_band_set_queue(ofproto->in_band, ofproto->in_band_queue);
ofproto->next_in_band_update = time_msec() + 1000;
} else {
in_band_destroy(ofproto->in_band);
update_in_band_remotes(ofproto);
}
+/* Sets the OpenFlow queue used by flows set up by in-band control on
+ * 'ofproto' to 'queue_id'. If 'queue_id' is negative, then in-band control
+ * flows will use the default queue. */
+void
+ofproto_set_in_band_queue(struct ofproto *ofproto, int queue_id)
+{
+ if (queue_id != ofproto->in_band_queue) {
+ ofproto->in_band_queue = queue_id;
+ update_in_band_remotes(ofproto);
+ }
+}
+
void
ofproto_set_desc(struct ofproto *p,
const char *mfr_desc, const char *hw_desc,
struct ofport *ofport;
os = ofproto->sflow = ofproto_sflow_create(ofproto->dpif);
- refresh_port_groups(ofproto);
HMAP_FOR_EACH (ofport, hmap_node, &ofproto->ports) {
ofproto_sflow_add_port(os, ofport->odp_port,
netdev_get_name(ofport->netdev));
return;
}
+ shash_find_and_delete(&all_ofprotos, dpif_name(p->dpif));
+
/* Destroy fail-open and in-band early, since they touch the classifier. */
fail_open_destroy(p->fail_open);
p->fail_open = NULL;
ofproto_flush_flows(p);
classifier_destroy(&p->cls);
+ hmap_destroy(&p->facets);
LIST_FOR_EACH_SAFE (ofconn, next_ofconn, node, &p->all_conns) {
ofconn_destroy(ofconn);
}
LIST_FOR_EACH_SAFE (ofconn, next_ofconn, node, &p->all_conns) {
- ofconn_run(ofconn, p);
+ ofconn_run(ofconn);
}
/* Fail-open maintenance. Do this after processing the ofconns since
}
if (time_msec() >= p->next_expiration) {
+ int delay = ofproto_expire(p);
+ p->next_expiration = time_msec() + delay;
COVERAGE_INC(ofproto_expiration);
- ofproto_expire(p);
- p->next_expiration = time_msec() + 1000;
}
if (p->netflow) {
return 0;
}
-struct revalidate_cbdata {
- struct ofproto *ofproto;
- bool revalidate_all; /* Revalidate all exact-match rules? */
- bool revalidate_subrules; /* Revalidate all exact-match subrules? */
- struct tag_set revalidate_set; /* Set of tags to revalidate. */
-};
-
int
ofproto_run2(struct ofproto *p, bool revalidate_all)
{
- if (p->need_revalidate || revalidate_all
- || !tag_set_is_empty(&p->revalidate_set)) {
- struct revalidate_cbdata cbdata;
- cbdata.ofproto = p;
- cbdata.revalidate_all = revalidate_all;
- cbdata.revalidate_subrules = p->need_revalidate;
- cbdata.revalidate_set = p->revalidate_set;
- tag_set_init(&p->revalidate_set);
- COVERAGE_INC(ofproto_revalidate);
- classifier_for_each(&p->cls, CLS_INC_EXACT, revalidate_cb, &cbdata);
- p->need_revalidate = false;
+ /* Figure out what we need to revalidate now, if anything. */
+ struct tag_set revalidate_set = p->revalidate_set;
+ if (p->need_revalidate) {
+ revalidate_all = true;
+ }
+
+ /* Clear the revalidation flags. */
+ tag_set_init(&p->revalidate_set);
+ p->need_revalidate = false;
+
+ /* Now revalidate if there's anything to do. */
+ if (revalidate_all || !tag_set_is_empty(&revalidate_set)) {
+ struct facet *facet, *next;
+
+ HMAP_FOR_EACH_SAFE (facet, next, hmap_node, &p->facets) {
+ if (revalidate_all
+ || tag_set_intersects(&revalidate_set, facet->tags)) {
+ facet_revalidate(p, facet);
+ }
+ }
}
return 0;
return !hmap_is_empty(&p->controllers);
}
+/* Deletes port number 'odp_port' from the datapath for 'ofproto'.
+ *
+ * This is almost the same as calling dpif_port_del() directly on the
+ * datapath, but it also makes 'ofproto' close its open netdev for the port
+ * (if any). This makes it possible to create a new netdev of a different
+ * type under the same name, which otherwise the netdev library would refuse
+ * to do because of the conflict. (The netdev would eventually get closed on
+ * the next trip through ofproto_run(), but this interface is more direct.)
+ *
+ * Returns 0 if successful, otherwise a positive errno. */
int
-ofproto_send_packet(struct ofproto *p, const flow_t *flow,
- const union ofp_action *actions, size_t n_actions,
- const struct ofpbuf *packet)
+ofproto_port_del(struct ofproto *ofproto, uint16_t odp_port)
{
- struct odp_actions odp_actions;
+ struct ofport *ofport = get_port(ofproto, odp_port);
+ const char *name = ofport ? ofport->opp.name : "<unknown>";
int error;
- error = xlate_actions(actions, n_actions, flow, p, packet, &odp_actions,
- NULL, NULL, NULL);
+ error = dpif_port_del(ofproto->dpif, odp_port);
if (error) {
- return error;
+ VLOG_ERR("%s: failed to remove port %"PRIu16" (%s) interface (%s)",
+ dpif_name(ofproto->dpif), odp_port, name, strerror(error));
+ } else if (ofport) {
+ /* 'name' is ofport->opp.name and update_port() is going to destroy
+ * 'ofport'. Just in case update_port() refers to 'name' after it
+ * destroys 'ofport', make a copy of it around the update_port()
+ * call. */
+ char *devname = xstrdup(name);
+ update_port(ofproto, devname);
+ free(devname);
}
+ return error;
+}
+
+/* Checks if 'ofproto' thinks 'odp_port' should be included in floods. Returns
+ * true if 'odp_port' exists and should be included, false otherwise. */
+bool
+ofproto_port_is_floodable(struct ofproto *ofproto, uint16_t odp_port)
+{
+ struct ofport *ofport = get_port(ofproto, odp_port);
+ return ofport && !(ofport->opp.config & OFPPC_NO_FLOOD);
+}
+
+int
+ofproto_send_packet(struct ofproto *p, const struct flow *flow,
+ const union ofp_action *actions, size_t n_actions,
+ const struct ofpbuf *packet)
+{
+ struct action_xlate_ctx ctx;
+ struct ofpbuf *odp_actions;
+
+ action_xlate_ctx_init(&ctx, p, flow, packet);
+ odp_actions = xlate_actions(&ctx, actions, n_actions);
/* XXX Should we translate the dpif_execute() errno value into an OpenFlow
* error code? */
- dpif_execute(p->dpif, flow->in_port, odp_actions.actions,
- odp_actions.n_actions, packet);
+ dpif_execute(p->dpif, odp_actions->data, odp_actions->size, packet);
+
+ ofpbuf_delete(odp_actions);
+
return 0;
}
+/* Adds a flow to the OpenFlow flow table in 'p' that matches 'cls_rule' and
+ * performs the 'n_actions' actions in 'actions'. The new flow will not
+ * timeout.
+ *
+ * If cls_rule->priority is in the range of priorities supported by OpenFlow
+ * (0...65535, inclusive) then the flow will be visible to OpenFlow
+ * controllers; otherwise, it will be hidden.
+ *
+ * The caller retains ownership of 'cls_rule' and 'actions'. */
void
-ofproto_add_flow(struct ofproto *p,
- const flow_t *flow, uint32_t wildcards, unsigned int priority,
- const union ofp_action *actions, size_t n_actions,
- int idle_timeout)
+ofproto_add_flow(struct ofproto *p, const struct cls_rule *cls_rule,
+ const union ofp_action *actions, size_t n_actions)
{
struct rule *rule;
- rule = rule_create(p, NULL, actions, n_actions,
- idle_timeout >= 0 ? idle_timeout : 5 /* XXX */,
- 0, 0, false);
- cls_rule_from_flow(flow, wildcards, priority, &rule->cr);
- rule_insert(p, rule, NULL, 0);
+ rule = rule_create(cls_rule, actions, n_actions, 0, 0, 0, false);
+ rule_insert(p, rule);
}
void
-ofproto_delete_flow(struct ofproto *ofproto, const flow_t *flow,
- uint32_t wildcards, unsigned int priority)
+ofproto_delete_flow(struct ofproto *ofproto, const struct cls_rule *target)
{
struct rule *rule;
rule = rule_from_cls_rule(classifier_find_rule_exactly(&ofproto->cls,
- flow, wildcards,
- priority));
+ target));
if (rule) {
rule_remove(ofproto, rule);
}
}
-static void
-destroy_rule(struct cls_rule *rule_, void *ofproto_)
-{
- struct rule *rule = rule_from_cls_rule(rule_);
- struct ofproto *ofproto = ofproto_;
-
- /* Mark the flow as not installed, even though it might really be
- * installed, so that rule_remove() doesn't bother trying to uninstall it.
- * There is no point in uninstalling it individually since we are about to
- * blow away all the flows with dpif_flow_flush(). */
- rule->installed = false;
-
- rule_remove(ofproto, rule);
-}
-
void
ofproto_flush_flows(struct ofproto *ofproto)
{
+ struct facet *facet, *next_facet;
+ struct rule *rule, *next_rule;
+ struct cls_cursor cursor;
+
COVERAGE_INC(ofproto_flush);
- classifier_for_each(&ofproto->cls, CLS_INC_ALL, destroy_rule, ofproto);
+
+ HMAP_FOR_EACH_SAFE (facet, next_facet, hmap_node, &ofproto->facets) {
+ /* Mark the facet as not installed so that facet_remove() doesn't
+ * bother trying to uninstall it. There is no point in uninstalling it
+ * individually since we are about to blow away all the facets with
+ * dpif_flow_flush(). */
+ facet->installed = false;
+ facet_remove(ofproto, facet);
+ }
+
+ cls_cursor_init(&cursor, &ofproto->cls, NULL);
+ CLS_CURSOR_FOR_EACH_SAFE (rule, next_rule, cr, &cursor) {
+ rule_remove(ofproto, rule);
+ }
+
dpif_flow_flush(ofproto->dpif);
if (ofproto->in_band) {
in_band_flushed(ofproto->in_band);
static void
reinit_ports(struct ofproto *p)
{
- struct svec devnames;
+ struct shash_node *node;
+ struct shash devnames;
struct ofport *ofport;
struct odp_port *odp_ports;
size_t n_odp_ports;
size_t i;
- svec_init(&devnames);
+ COVERAGE_INC(ofproto_reinit_ports);
+
+ shash_init(&devnames);
HMAP_FOR_EACH (ofport, hmap_node, &p->ports) {
- svec_add (&devnames, (char *) ofport->opp.name);
+ shash_add_once (&devnames, ofport->opp.name, NULL);
}
dpif_port_list(p->dpif, &odp_ports, &n_odp_ports);
for (i = 0; i < n_odp_ports; i++) {
- svec_add (&devnames, odp_ports[i].devname);
+ shash_add_once (&devnames, odp_ports[i].devname, NULL);
}
free(odp_ports);
- svec_sort_unique(&devnames);
- for (i = 0; i < devnames.n; i++) {
- update_port(p, devnames.names[i]);
- }
- svec_destroy(&devnames);
-}
-
-static size_t
-refresh_port_group(struct ofproto *p, unsigned int group)
-{
- uint16_t *ports;
- size_t n_ports;
- struct ofport *port;
-
- assert(group == DP_GROUP_ALL || group == DP_GROUP_FLOOD);
-
- ports = xmalloc(hmap_count(&p->ports) * sizeof *ports);
- n_ports = 0;
- HMAP_FOR_EACH (port, hmap_node, &p->ports) {
- if (group == DP_GROUP_ALL || !(port->opp.config & OFPPC_NO_FLOOD)) {
- ports[n_ports++] = port->odp_port;
- }
- }
- dpif_port_group_set(p->dpif, group, ports, n_ports);
- free(ports);
-
- return n_ports;
-}
-
-static void
-refresh_port_groups(struct ofproto *p)
-{
- size_t n_flood = refresh_port_group(p, DP_GROUP_FLOOD);
- size_t n_all = refresh_port_group(p, DP_GROUP_ALL);
- if (p->sflow) {
- ofproto_sflow_set_group_sizes(p->sflow, n_flood, n_all);
+ SHASH_FOR_EACH (node, &devnames) {
+ update_port(p, node->name);
}
+ shash_destroy(&devnames);
}
static struct ofport *
enum netdev_flags flags;
struct ofport *ofport;
struct netdev *netdev;
- bool carrier;
int error;
memset(&netdev_options, 0, sizeof netdev_options);
netdev_options.name = odp_port->devname;
+ netdev_options.type = odp_port->type;
netdev_options.ethertype = NETDEV_ETH_TYPE_NONE;
error = netdev_open(&netdev_options, &netdev);
netdev_get_flags(netdev, &flags);
ofport->opp.config = flags & NETDEV_UP ? 0 : OFPPC_PORT_DOWN;
- netdev_get_carrier(netdev, &carrier);
- ofport->opp.state = carrier ? 0 : OFPPS_LINK_DOWN;
+ ofport->opp.state = netdev_get_carrier(netdev) ? 0 : OFPPS_LINK_DOWN;
netdev_get_features(netdev,
&ofport->opp.curr, &ofport->opp.advertised,
BUILD_ASSERT_DECL(sizeof *a == 48); /* Detect ofp_phy_port changes. */
return (a->port_no == b->port_no
&& !memcmp(a->hw_addr, b->hw_addr, sizeof a->hw_addr)
- && !strcmp((char *) a->name, (char *) b->name)
+ && !strcmp(a->name, b->name)
&& a->state == b->state
&& a->config == b->config
&& a->curr == b->curr
struct ofp_port_status *ops;
struct ofpbuf *b;
- if (!ofconn_receives_async_msgs(ofconn)) {
+ /* Primary controllers, even slaves, should always get port status
+ updates. Otherwise obey ofconn_receives_async_msgs(). */
+ if (ofconn->type != OFCONN_PRIMARY
+ && !ofconn_receives_async_msgs(ofconn)) {
continue;
}
hton_ofp_phy_port(&ops->desc);
queue_tx(b, ofconn, NULL);
}
- if (p->ofhooks->port_changed_cb) {
- p->ofhooks->port_changed_cb(reason, &ofport->opp, p->aux);
- }
}
static void
ofport_install(struct ofproto *p, struct ofport *ofport)
{
- const char *netdev_name = (const char *) ofport->opp.name;
+ const char *netdev_name = ofport->opp.name;
netdev_monitor_add(p->netdev_monitor, ofport->netdev);
hmap_insert(&p->ports, &ofport->hmap_node, hash_int(ofport->odp_port, 0));
netdev_monitor_remove(p->netdev_monitor, ofport->netdev);
hmap_remove(&p->ports, &ofport->hmap_node);
shash_delete(&p->port_by_name,
- shash_find(&p->port_by_name, (char *) ofport->opp.name));
+ shash_find(&p->port_by_name, ofport->opp.name));
if (p->sflow) {
ofproto_sflow_del_port(p->sflow, ofport->odp_port);
}
return;
} else if (old_ofport && new_ofport) {
/* Most of the 'config' bits are OpenFlow soft state, but
- * OFPPC_PORT_DOWN is maintained the kernel. So transfer the OpenFlow
- * bits from old_ofport. (make_ofport() only sets OFPPC_PORT_DOWN and
- * leaves the other bits 0.) */
+ * OFPPC_PORT_DOWN is maintained by the kernel. So transfer the
+ * OpenFlow bits from old_ofport. (make_ofport() only sets
+ * OFPPC_PORT_DOWN and leaves the other bits 0.) */
new_ofport->opp.config |= old_ofport->opp.config & ~OFPPC_PORT_DOWN;
if (ofport_equal(old_ofport, new_ofport)) {
: !new_ofport ? OFPPR_DELETE
: OFPPR_MODIFY));
ofport_free(old_ofport);
-
- /* Update port groups. */
- refresh_port_groups(p);
}
static int
}
}
free(ports);
- refresh_port_groups(p);
return 0;
}
\f
list_push_back(&p->all_conns, &ofconn->node);
ofconn->rconn = rconn;
ofconn->type = type;
+ ofconn->flow_format = NXFF_OPENFLOW10;
ofconn->role = NX_ROLE_OTHER;
ofconn->packet_in_counter = rconn_packet_counter_create ();
ofconn->pktbuf = NULL;
}
static void
-ofconn_run(struct ofconn *ofconn, struct ofproto *p)
+ofconn_run(struct ofconn *ofconn)
{
+ struct ofproto *p = ofconn->ofproto;
int iteration;
size_t i;
if (p->fail_open) {
fail_open_maybe_recover(p->fail_open);
}
- handle_openflow(ofconn, p, of_msg);
+ handle_openflow(ofconn, of_msg);
ofpbuf_delete(of_msg);
}
}
return NULL;
}
\f
-/* Caller is responsible for initializing the 'cr' member of the returned
- * rule. */
+/* Returns true if 'rule' should be hidden from the controller.
+ *
+ * Rules with priority higher than UINT16_MAX are set up by ofproto itself
+ * (e.g. by in-band control) and are intentionally hidden from the
+ * controller. */
+static bool
+rule_is_hidden(const struct rule *rule)
+{
+ return rule->cr.priority > UINT16_MAX;
+}
+
+/* Creates and returns a new rule initialized as specified.
+ *
+ * The caller is responsible for inserting the rule into the classifier (with
+ * rule_insert()). */
static struct rule *
-rule_create(struct ofproto *ofproto, struct rule *super,
+rule_create(const struct cls_rule *cls_rule,
const union ofp_action *actions, size_t n_actions,
uint16_t idle_timeout, uint16_t hard_timeout,
- uint64_t flow_cookie, bool send_flow_removed)
+ ovs_be64 flow_cookie, bool send_flow_removed)
{
struct rule *rule = xzalloc(sizeof *rule);
+ rule->cr = *cls_rule;
rule->idle_timeout = idle_timeout;
rule->hard_timeout = hard_timeout;
rule->flow_cookie = flow_cookie;
rule->used = rule->created = time_msec();
rule->send_flow_removed = send_flow_removed;
- rule->super = super;
- if (super) {
- list_push_back(&super->list, &rule->list);
- } else {
- list_init(&rule->list);
- }
+ list_init(&rule->facets);
if (n_actions > 0) {
rule->n_actions = n_actions;
rule->actions = xmemdup(actions, n_actions * sizeof *actions);
}
- netflow_flow_clear(&rule->nf_flow);
- netflow_flow_update_time(ofproto->netflow, &rule->nf_flow, rule->created);
return rule;
}
rule_free(struct rule *rule)
{
free(rule->actions);
- free(rule->odp_actions);
free(rule);
}
-/* Destroys 'rule'. If 'rule' is a subrule, also removes it from its
- * super-rule's list of subrules. If 'rule' is a super-rule, also iterates
- * through all of its subrules and revalidates them, destroying any that no
- * longer has a super-rule (which is probably all of them).
+/* Destroys 'rule' and iterates through all of its facets and revalidates them,
+ * destroying any that no longer has a rule (which is probably all of them).
*
- * Before calling this function, the caller must make have removed 'rule' from
- * the classifier. If 'rule' is an exact-match rule, the caller is also
- * responsible for ensuring that it has been uninstalled from the datapath. */
+ * The caller must have already removed 'rule' from the classifier. */
static void
rule_destroy(struct ofproto *ofproto, struct rule *rule)
{
- if (!rule->super) {
- struct rule *subrule, *next;
- LIST_FOR_EACH_SAFE (subrule, next, list, &rule->list) {
- revalidate_rule(ofproto, subrule);
- }
- } else {
- list_remove(&rule->list);
+ struct facet *facet, *next_facet;
+ LIST_FOR_EACH_SAFE (facet, next_facet, list_node, &rule->facets) {
+ facet_revalidate(ofproto, facet);
}
rule_free(rule);
}
+/* Returns true if 'rule' has an OpenFlow OFPAT_OUTPUT or OFPAT_ENQUEUE action
+ * that outputs to 'out_port' (output to OFPP_FLOOD and OFPP_ALL doesn't
+ * count). */
static bool
-rule_has_out_port(const struct rule *rule, uint16_t out_port)
+rule_has_out_port(const struct rule *rule, ovs_be16 out_port)
{
const union ofp_action *oa;
struct actions_iterator i;
* Takes ownership of 'packet'. */
static bool
execute_odp_actions(struct ofproto *ofproto, uint16_t in_port,
- const union odp_action *actions, size_t n_actions,
+ const struct nlattr *odp_actions, size_t actions_len,
struct ofpbuf *packet)
{
- if (n_actions == 1 && actions[0].type == ODPAT_CONTROLLER) {
+ if (actions_len == NLA_ALIGN(NLA_HDRLEN + sizeof(uint64_t))
+ && odp_actions->nla_type == ODPAT_CONTROLLER) {
/* As an optimization, avoid a round-trip from userspace to kernel to
* userspace. This also avoids possibly filling up kernel packet
* buffers along the way. */
msg->type = _ODPL_ACTION_NR;
msg->length = sizeof(struct odp_msg) + packet->size;
msg->port = in_port;
- msg->reserved = 0;
- msg->arg = actions[0].controller.arg;
+ msg->arg = nl_attr_get_u64(odp_actions);
send_packet_in(ofproto, packet);
} else {
int error;
- error = dpif_execute(ofproto->dpif, in_port,
- actions, n_actions, packet);
+ error = dpif_execute(ofproto->dpif, odp_actions, actions_len, packet);
ofpbuf_delete(packet);
return !error;
}
}
-/* Executes the actions indicated by 'rule' on 'packet', which is in flow
- * 'flow' and is considered to have arrived on ODP port 'in_port'. 'packet'
- * must have at least sizeof(struct ofp_packet_in) bytes of headroom.
+/* Executes the actions indicated by 'facet' on 'packet' and credits 'facet''s
+ * statistics appropriately. 'packet' must have at least sizeof(struct
+ * ofp_packet_in) bytes of headroom.
*
- * The flow that 'packet' actually contains does not need to actually match
- * 'rule'; the actions in 'rule' will be applied to it either way. Likewise,
- * the packet and byte counters for 'rule' will be credited for the packet sent
- * out whether or not the packet actually matches 'rule'.
+ * For correct results, 'packet' must actually be in 'facet''s flow; that is,
+ * applying flow_extract() to 'packet' would yield the same flow as
+ * 'facet->flow'.
*
- * If 'rule' is an exact-match rule and 'flow' actually equals the rule's flow,
- * the caller must already have accurately composed ODP actions for it given
- * 'packet' using rule_make_actions(). If 'rule' is a wildcard rule, or if
- * 'rule' is an exact-match rule but 'flow' is not the rule's flow, then this
- * function will compose a set of ODP actions based on 'rule''s OpenFlow
- * actions and apply them to 'packet'.
+ * 'facet' must have accurately composed ODP actions; that is, it must not be
+ * in need of revalidation.
*
* Takes ownership of 'packet'. */
static void
-rule_execute(struct ofproto *ofproto, struct rule *rule,
- struct ofpbuf *packet, const flow_t *flow)
+facet_execute(struct ofproto *ofproto, struct facet *facet,
+ struct ofpbuf *packet)
{
- const union odp_action *actions;
struct odp_flow_stats stats;
- size_t n_actions;
- struct odp_actions a;
assert(ofpbuf_headroom(packet) >= sizeof(struct ofp_packet_in));
- /* Grab or compose the ODP actions.
- *
- * The special case for an exact-match 'rule' where 'flow' is not the
- * rule's flow is important to avoid, e.g., sending a packet out its input
- * port simply because the ODP actions were composed for the wrong
- * scenario. */
- if (rule->cr.wc.wildcards || !flow_equal(flow, &rule->cr.flow)) {
- struct rule *super = rule->super ? rule->super : rule;
- if (xlate_actions(super->actions, super->n_actions, flow, ofproto,
- packet, &a, NULL, 0, NULL)) {
- ofpbuf_delete(packet);
- return;
- }
- actions = a.actions;
- n_actions = a.n_actions;
- } else {
- actions = rule->odp_actions;
- n_actions = rule->n_odp_actions;
- }
-
- /* Execute the ODP actions. */
- flow_extract_stats(flow, packet, &stats);
- if (execute_odp_actions(ofproto, flow->in_port,
- actions, n_actions, packet)) {
- update_stats(ofproto, rule, &stats);
- rule->used = time_msec();
- netflow_flow_update_time(ofproto->netflow, &rule->nf_flow, rule->used);
+ flow_extract_stats(&facet->flow, packet, &stats);
+ if (execute_odp_actions(ofproto, facet->flow.in_port,
+ facet->actions, facet->actions_len, packet)) {
+ facet_update_stats(ofproto, facet, &stats);
+ facet->used = time_msec();
+ netflow_flow_update_time(ofproto->netflow,
+ &facet->nf_flow, facet->used);
}
}
-/* Inserts 'rule' into 'p''s flow table.
+/* Executes the actions indicated by 'rule' on 'packet' and credits 'rule''s
+ * statistics (or the statistics for one of its facets) appropriately.
+ * 'packet' must have at least sizeof(struct ofp_packet_in) bytes of headroom.
+ *
+ * 'packet' doesn't necessarily have to match 'rule'. 'rule' will be credited
+ * with statistics for 'packet' either way.
*
- * If 'packet' is nonnull, takes ownership of 'packet', executes 'rule''s
- * actions on it and credits the statistics for sending the packet to 'rule'.
- * 'packet' must have at least sizeof(struct ofp_packet_in) bytes of
- * headroom. */
+ * Takes ownership of 'packet'. */
static void
-rule_insert(struct ofproto *p, struct rule *rule, struct ofpbuf *packet,
- uint16_t in_port)
+rule_execute(struct ofproto *ofproto, struct rule *rule, uint16_t in_port,
+ struct ofpbuf *packet)
{
- struct rule *displaced_rule;
+ struct action_xlate_ctx ctx;
+ struct ofpbuf *odp_actions;
+ struct facet *facet;
+ struct flow flow;
+ size_t size;
- /* Insert the rule in the classifier. */
- displaced_rule = rule_from_cls_rule(classifier_insert(&p->cls, &rule->cr));
- if (!rule->cr.wc.wildcards) {
- rule_make_actions(p, rule, packet);
+ assert(ofpbuf_headroom(packet) >= sizeof(struct ofp_packet_in));
+
+ flow_extract(packet, 0, in_port, &flow);
+
+ /* First look for a related facet. If we find one, account it to that. */
+ facet = facet_lookup_valid(ofproto, &flow);
+ if (facet && facet->rule == rule) {
+ facet_execute(ofproto, facet, packet);
+ return;
}
- /* Send the packet and credit it to the rule. */
- if (packet) {
- flow_t flow;
- flow_extract(packet, 0, in_port, &flow);
- rule_execute(p, rule, packet, &flow);
+ /* Otherwise, if 'rule' is in fact the correct rule for 'packet', then
+ * create a new facet for it and use that. */
+ if (rule_lookup(ofproto, &flow) == rule) {
+ facet = facet_create(ofproto, rule, &flow, packet);
+ facet_execute(ofproto, facet, packet);
+ facet_install(ofproto, facet, true);
+ return;
}
- /* Install the rule in the datapath only after sending the packet, to
- * avoid packet reordering. */
- if (rule->cr.wc.wildcards) {
- COVERAGE_INC(ofproto_add_wc_flow);
- p->need_revalidate = true;
- } else {
- rule_install(p, rule, displaced_rule);
+ /* We can't account anything to a facet. If we were to try, then that
+ * facet would have a non-matching rule, busting our invariants. */
+ action_xlate_ctx_init(&ctx, ofproto, &flow, packet);
+ odp_actions = xlate_actions(&ctx, rule->actions, rule->n_actions);
+ size = packet->size;
+ if (execute_odp_actions(ofproto, in_port, odp_actions->data,
+ odp_actions->size, packet)) {
+ rule->used = time_msec();
+ rule->packet_count++;
+ rule->byte_count += size;
}
+ ofpbuf_delete(odp_actions);
+}
+
+/* Inserts 'rule' into 'p''s flow table. */
+static void
+rule_insert(struct ofproto *p, struct rule *rule)
+{
+ struct rule *displaced_rule;
- /* Free the rule that was displaced, if any. */
+ displaced_rule = rule_from_cls_rule(classifier_insert(&p->cls, &rule->cr));
if (displaced_rule) {
rule_destroy(p, displaced_rule);
}
+ p->need_revalidate = true;
}
-static struct rule *
-rule_create_subrule(struct ofproto *ofproto, struct rule *rule,
- const flow_t *flow)
+/* Creates and returns a new facet within 'ofproto' owned by 'rule', given a
+ * 'flow' and an example 'packet' within that flow.
+ *
+ * The caller must already have determined that no facet with an identical
+ * 'flow' exists in 'ofproto' and that 'flow' is the best match for 'rule' in
+ * 'ofproto''s classifier table. */
+static struct facet *
+facet_create(struct ofproto *ofproto, struct rule *rule,
+ const struct flow *flow, const struct ofpbuf *packet)
{
- struct rule *subrule = rule_create(ofproto, rule, NULL, 0,
- rule->idle_timeout, rule->hard_timeout,
- 0, false);
- COVERAGE_INC(ofproto_subrule_create);
- cls_rule_from_flow(flow, 0, (rule->cr.priority <= UINT16_MAX ? UINT16_MAX
- : rule->cr.priority), &subrule->cr);
- classifier_insert_exact(&ofproto->cls, &subrule->cr);
+ struct facet *facet;
+
+ facet = xzalloc(sizeof *facet);
+ facet->used = time_msec();
+ hmap_insert(&ofproto->facets, &facet->hmap_node, flow_hash(flow, 0));
+ list_push_back(&rule->facets, &facet->list_node);
+ facet->rule = rule;
+ facet->flow = *flow;
+ netflow_flow_init(&facet->nf_flow);
+ netflow_flow_update_time(ofproto->netflow, &facet->nf_flow, facet->used);
+
+ facet_make_actions(ofproto, facet, packet);
- return subrule;
+ return facet;
}
+static void
+facet_free(struct facet *facet)
+{
+ free(facet->actions);
+ free(facet);
+}
+
+/* Remove 'rule' from 'ofproto' and free up the associated memory:
+ *
+ * - Removes 'rule' from the classifier.
+ *
+ * - If 'rule' has facets, revalidates them (and possibly uninstalls and
+ * destroys them), via rule_destroy().
+ */
static void
rule_remove(struct ofproto *ofproto, struct rule *rule)
{
- if (rule->cr.wc.wildcards) {
- COVERAGE_INC(ofproto_del_wc_flow);
- ofproto->need_revalidate = true;
- } else {
- rule_uninstall(ofproto, rule);
- }
+ COVERAGE_INC(ofproto_del_rule);
+ ofproto->need_revalidate = true;
classifier_remove(&ofproto->cls, &rule->cr);
rule_destroy(ofproto, rule);
}
-/* Returns true if the actions changed, false otherwise. */
-static bool
-rule_make_actions(struct ofproto *p, struct rule *rule,
- const struct ofpbuf *packet)
-{
- const struct rule *super;
- struct odp_actions a;
- size_t actions_len;
-
- assert(!rule->cr.wc.wildcards);
-
- super = rule->super ? rule->super : rule;
- rule->tags = 0;
- xlate_actions(super->actions, super->n_actions, &rule->cr.flow, p,
- packet, &a, &rule->tags, &rule->may_install,
- &rule->nf_flow.output_iface);
-
- actions_len = a.n_actions * sizeof *a.actions;
- if (rule->n_odp_actions != a.n_actions
- || memcmp(rule->odp_actions, a.actions, actions_len)) {
- COVERAGE_INC(ofproto_odp_unchanged);
- free(rule->odp_actions);
- rule->n_odp_actions = a.n_actions;
- rule->odp_actions = xmemdup(a.actions, actions_len);
- return true;
- } else {
- return false;
+/* Remove 'facet' from 'ofproto' and free up the associated memory:
+ *
+ * - If 'facet' was installed in the datapath, uninstalls it and updates its
+ * rule's statistics, via facet_uninstall().
+ *
+ * - Removes 'facet' from its rule and from ofproto->facets.
+ */
+static void
+facet_remove(struct ofproto *ofproto, struct facet *facet)
+{
+ facet_uninstall(ofproto, facet);
+ facet_flush_stats(ofproto, facet);
+ hmap_remove(&ofproto->facets, &facet->hmap_node);
+ list_remove(&facet->list_node);
+ facet_free(facet);
+}
+
+/* Composes the ODP actions for 'facet' based on its rule's actions. */
+static void
+facet_make_actions(struct ofproto *p, struct facet *facet,
+ const struct ofpbuf *packet)
+{
+ const struct rule *rule = facet->rule;
+ struct ofpbuf *odp_actions;
+ struct action_xlate_ctx ctx;
+
+ action_xlate_ctx_init(&ctx, p, &facet->flow, packet);
+ odp_actions = xlate_actions(&ctx, rule->actions, rule->n_actions);
+ facet->tags = ctx.tags;
+ facet->may_install = ctx.may_set_up_flow;
+ facet->nf_flow.output_iface = ctx.nf_output_iface;
+
+ if (facet->actions_len != odp_actions->size
+ || memcmp(facet->actions, odp_actions->data, odp_actions->size)) {
+ free(facet->actions);
+ facet->actions_len = odp_actions->size;
+ facet->actions = xmemdup(odp_actions->data, odp_actions->size);
}
+
+ ofpbuf_delete(odp_actions);
}
static int
-do_put_flow(struct ofproto *ofproto, struct rule *rule, int flags,
+facet_put__(struct ofproto *ofproto, struct facet *facet, int flags,
struct odp_flow_put *put)
{
memset(&put->flow.stats, 0, sizeof put->flow.stats);
- put->flow.key = rule->cr.flow;
- put->flow.actions = rule->odp_actions;
- put->flow.n_actions = rule->n_odp_actions;
+ odp_flow_key_from_flow(&put->flow.key, &facet->flow);
+ put->flow.actions = facet->actions;
+ put->flow.actions_len = facet->actions_len;
put->flow.flags = 0;
put->flags = flags;
return dpif_flow_put(ofproto->dpif, put);
}
+/* If 'facet' is installable, inserts or re-inserts it into 'p''s datapath. If
+ * 'zero_stats' is true, clears any existing statistics from the datapath for
+ * 'facet'. */
static void
-rule_install(struct ofproto *p, struct rule *rule, struct rule *displaced_rule)
-{
- assert(!rule->cr.wc.wildcards);
-
- if (rule->may_install) {
- struct odp_flow_put put;
- if (!do_put_flow(p, rule,
- ODPPF_CREATE | ODPPF_MODIFY | ODPPF_ZERO_STATS,
- &put)) {
- rule->installed = true;
- if (displaced_rule) {
- update_stats(p, displaced_rule, &put.flow.stats);
- rule_post_uninstall(p, displaced_rule);
- }
- }
- } else if (displaced_rule) {
- rule_uninstall(p, displaced_rule);
- }
-}
-
-static void
-rule_reinstall(struct ofproto *ofproto, struct rule *rule)
+facet_install(struct ofproto *p, struct facet *facet, bool zero_stats)
{
- if (rule->installed) {
+ if (facet->may_install) {
struct odp_flow_put put;
- COVERAGE_INC(ofproto_dp_missed);
- do_put_flow(ofproto, rule, ODPPF_CREATE | ODPPF_MODIFY, &put);
- } else {
- rule_install(ofproto, rule, NULL);
- }
-}
+ int flags;
-static void
-rule_update_actions(struct ofproto *ofproto, struct rule *rule)
-{
- bool actions_changed;
- uint16_t new_out_iface, old_out_iface;
-
- old_out_iface = rule->nf_flow.output_iface;
- actions_changed = rule_make_actions(ofproto, rule, NULL);
-
- if (rule->may_install) {
- if (rule->installed) {
- if (actions_changed) {
- struct odp_flow_put put;
- do_put_flow(ofproto, rule, ODPPF_CREATE | ODPPF_MODIFY
- | ODPPF_ZERO_STATS, &put);
- update_stats(ofproto, rule, &put.flow.stats);
-
- /* Temporarily set the old output iface so that NetFlow
- * messages have the correct output interface for the old
- * stats. */
- new_out_iface = rule->nf_flow.output_iface;
- rule->nf_flow.output_iface = old_out_iface;
- rule_post_uninstall(ofproto, rule);
- rule->nf_flow.output_iface = new_out_iface;
- }
- } else {
- rule_install(ofproto, rule, NULL);
+ flags = ODPPF_CREATE | ODPPF_MODIFY;
+ if (zero_stats) {
+ flags |= ODPPF_ZERO_STATS;
+ }
+ if (!facet_put__(p, facet, flags, &put)) {
+ facet->installed = true;
}
- } else {
- rule_uninstall(ofproto, rule);
}
}
+/* Ensures that the bytes in 'facet', plus 'extra_bytes', have been passed up
+ * to the accounting hook function in the ofhooks structure. */
static void
-rule_account(struct ofproto *ofproto, struct rule *rule, uint64_t extra_bytes)
+facet_account(struct ofproto *ofproto,
+ struct facet *facet, uint64_t extra_bytes)
{
- uint64_t total_bytes = rule->byte_count + extra_bytes;
+ uint64_t total_bytes = facet->byte_count + extra_bytes;
if (ofproto->ofhooks->account_flow_cb
- && total_bytes > rule->accounted_bytes)
+ && total_bytes > facet->accounted_bytes)
{
ofproto->ofhooks->account_flow_cb(
- &rule->cr.flow, rule->tags, rule->odp_actions, rule->n_odp_actions,
- total_bytes - rule->accounted_bytes, ofproto->aux);
- rule->accounted_bytes = total_bytes;
+ &facet->flow, facet->tags, facet->actions, facet->actions_len,
+ total_bytes - facet->accounted_bytes, ofproto->aux);
+ facet->accounted_bytes = total_bytes;
}
}
+/* If 'rule' is installed in the datapath, uninstalls it. */
static void
-rule_uninstall(struct ofproto *p, struct rule *rule)
+facet_uninstall(struct ofproto *p, struct facet *facet)
{
- assert(!rule->cr.wc.wildcards);
- if (rule->installed) {
+ if (facet->installed) {
struct odp_flow odp_flow;
- odp_flow.key = rule->cr.flow;
+ odp_flow_key_from_flow(&odp_flow.key, &facet->flow);
odp_flow.actions = NULL;
- odp_flow.n_actions = 0;
+ odp_flow.actions_len = 0;
odp_flow.flags = 0;
if (!dpif_flow_del(p->dpif, &odp_flow)) {
- update_stats(p, rule, &odp_flow.stats);
+ facet_update_stats(p, facet, &odp_flow.stats);
}
- rule->installed = false;
-
- rule_post_uninstall(p, rule);
+ facet->installed = false;
}
}
+/* Returns true if the only action for 'facet' is to send to the controller.
+ * (We don't report NetFlow expiration messages for such facets because they
+ * are just part of the control logic for the network, not real traffic). */
static bool
-is_controller_rule(struct rule *rule)
+facet_is_controller_flow(struct facet *facet)
{
- /* If the only action is send to the controller then don't report
- * NetFlow expiration messages since it is just part of the control
- * logic for the network and not real traffic. */
-
- return (rule
- && rule->super
- && rule->super->n_actions == 1
- && action_outputs_to_port(&rule->super->actions[0],
+ return (facet
+ && facet->rule->n_actions == 1
+ && action_outputs_to_port(&facet->rule->actions[0],
htons(OFPP_CONTROLLER)));
}
+/* Folds all of 'facet''s statistics into its rule. Also updates the
+ * accounting ofhook and emits a NetFlow expiration if appropriate. */
static void
-rule_post_uninstall(struct ofproto *ofproto, struct rule *rule)
+facet_flush_stats(struct ofproto *ofproto, struct facet *facet)
{
- struct rule *super = rule->super;
-
- rule_account(ofproto, rule, 0);
+ facet_account(ofproto, facet, 0);
- if (ofproto->netflow && !is_controller_rule(rule)) {
+ if (ofproto->netflow && !facet_is_controller_flow(facet)) {
struct ofexpired expired;
- expired.flow = rule->cr.flow;
- expired.packet_count = rule->packet_count;
- expired.byte_count = rule->byte_count;
- expired.used = rule->used;
- netflow_expire(ofproto->netflow, &rule->nf_flow, &expired);
+ expired.flow = facet->flow;
+ expired.packet_count = facet->packet_count;
+ expired.byte_count = facet->byte_count;
+ expired.used = facet->used;
+ netflow_expire(ofproto->netflow, &facet->nf_flow, &expired);
}
- if (super) {
- super->packet_count += rule->packet_count;
- super->byte_count += rule->byte_count;
- /* Reset counters to prevent double counting if the rule ever gets
- * reinstalled. */
- rule->packet_count = 0;
- rule->byte_count = 0;
- rule->accounted_bytes = 0;
+ facet->rule->packet_count += facet->packet_count;
+ facet->rule->byte_count += facet->byte_count;
- netflow_flow_clear(&rule->nf_flow);
- }
+ /* Reset counters to prevent double counting if 'facet' ever gets
+ * reinstalled. */
+ facet->packet_count = 0;
+ facet->byte_count = 0;
+ facet->accounted_bytes = 0;
+
+ netflow_flow_clear(&facet->nf_flow);
}
-\f
-static void
-queue_tx(struct ofpbuf *msg, const struct ofconn *ofconn,
- struct rconn_packet_counter *counter)
+
+/* Searches 'ofproto''s table of facets for one exactly equal to 'flow'.
+ * Returns it if found, otherwise a null pointer.
+ *
+ * The returned facet might need revalidation; use facet_lookup_valid()
+ * instead if that is important. */
+static struct facet *
+facet_find(struct ofproto *ofproto, const struct flow *flow)
{
- update_openflow_length(msg);
- if (rconn_send(ofconn->rconn, msg, counter)) {
- ofpbuf_delete(msg);
+ struct facet *facet;
+
+ HMAP_FOR_EACH_WITH_HASH (facet, hmap_node, flow_hash(flow, 0),
+ &ofproto->facets) {
+ if (flow_equal(flow, &facet->flow)) {
+ return facet;
+ }
}
+
+ return NULL;
}
-static void
-send_error(const struct ofconn *ofconn, const struct ofp_header *oh,
- int error, const void *data, size_t len)
+/* Searches 'ofproto''s table of facets for one exactly equal to 'flow'.
+ * Returns it if found, otherwise a null pointer.
+ *
+ * The returned facet is guaranteed to be valid. */
+static struct facet *
+facet_lookup_valid(struct ofproto *ofproto, const struct flow *flow)
{
- struct ofpbuf *buf;
- struct ofp_error_msg *oem;
+ struct facet *facet = facet_find(ofproto, flow);
- if (!(error >> 16)) {
- VLOG_WARN_RL(&rl, "not sending bad error code %d to controller",
- error);
- return;
+ /* The facet we found might not be valid, since we could be in need of
+ * revalidation. If it is not valid, don't return it. */
+ if (facet
+ && ofproto->need_revalidate
+ && !facet_revalidate(ofproto, facet)) {
+ COVERAGE_INC(ofproto_invalidated);
+ return NULL;
}
- COVERAGE_INC(ofproto_error);
- oem = make_openflow_xid(len + sizeof *oem, OFPT_ERROR,
- oh ? oh->xid : 0, &buf);
- oem->type = htons((unsigned int) error >> 16);
- oem->code = htons(error & 0xffff);
- memcpy(oem->data, data, len);
- queue_tx(buf, ofconn, ofconn->reply_counter);
+ return facet;
+}
+
+/* Re-searches 'ofproto''s classifier for a rule matching 'facet':
+ *
+ * - If the rule found is different from 'facet''s current rule, moves
+ * 'facet' to the new rule and recompiles its actions.
+ *
+ * - If the rule found is the same as 'facet''s current rule, leaves 'facet'
+ * where it is and recompiles its actions anyway.
+ *
+ * - If there is none, destroys 'facet'.
+ *
+ * Returns true if 'facet' still exists, false if it has been destroyed. */
+static bool
+facet_revalidate(struct ofproto *ofproto, struct facet *facet)
+{
+ struct action_xlate_ctx ctx;
+ struct ofpbuf *odp_actions;
+ struct rule *new_rule;
+ bool actions_changed;
+
+ COVERAGE_INC(facet_revalidate);
+
+ /* Determine the new rule. */
+ new_rule = rule_lookup(ofproto, &facet->flow);
+ if (!new_rule) {
+ /* No new rule, so delete the facet. */
+ facet_remove(ofproto, facet);
+ return false;
+ }
+
+ /* Calculate new ODP actions.
+ *
+ * We do not modify any 'facet' state yet, because we might need to, e.g.,
+ * emit a NetFlow expiration and, if so, we need to have the old state
+ * around to properly compose it. */
+ action_xlate_ctx_init(&ctx, ofproto, &facet->flow, NULL);
+ odp_actions = xlate_actions(&ctx, new_rule->actions, new_rule->n_actions);
+ actions_changed = (facet->actions_len != odp_actions->size
+ || memcmp(facet->actions, odp_actions->data,
+ facet->actions_len));
+
+ /* If the ODP actions changed or the installability changed, then we need
+ * to talk to the datapath. */
+ if (actions_changed || facet->may_install != facet->installed) {
+ if (facet->may_install) {
+ struct odp_flow_put put;
+
+ memset(&put.flow.stats, 0, sizeof put.flow.stats);
+ odp_flow_key_from_flow(&put.flow.key, &facet->flow);
+ put.flow.actions = odp_actions->data;
+ put.flow.actions_len = odp_actions->size;
+ put.flow.flags = 0;
+ put.flags = ODPPF_CREATE | ODPPF_MODIFY | ODPPF_ZERO_STATS;
+ dpif_flow_put(ofproto->dpif, &put);
+
+ facet_update_stats(ofproto, facet, &put.flow.stats);
+ } else {
+ facet_uninstall(ofproto, facet);
+ }
+
+ /* The datapath flow is gone or has zeroed stats, so push stats out of
+ * 'facet' into 'rule'. */
+ facet_flush_stats(ofproto, facet);
+ }
+
+ /* Update 'facet' now that we've taken care of all the old state. */
+ facet->tags = ctx.tags;
+ facet->nf_flow.output_iface = ctx.nf_output_iface;
+ facet->may_install = ctx.may_set_up_flow;
+ if (actions_changed) {
+ free(facet->actions);
+ facet->actions_len = odp_actions->size;
+ facet->actions = xmemdup(odp_actions->data, odp_actions->size);
+ }
+ if (facet->rule != new_rule) {
+ COVERAGE_INC(facet_changed_rule);
+ list_remove(&facet->list_node);
+ list_push_back(&new_rule->facets, &facet->list_node);
+ facet->rule = new_rule;
+ facet->used = new_rule->created;
+ }
+
+ ofpbuf_delete(odp_actions);
+
+ return true;
+}
+\f
+static void
+queue_tx(struct ofpbuf *msg, const struct ofconn *ofconn,
+ struct rconn_packet_counter *counter)
+{
+ update_openflow_length(msg);
+ if (rconn_send(ofconn->rconn, msg, counter)) {
+ ofpbuf_delete(msg);
+ }
}
static void
send_error_oh(const struct ofconn *ofconn, const struct ofp_header *oh,
int error)
{
- size_t oh_length = ntohs(oh->length);
- send_error(ofconn, oh, error, oh, MIN(oh_length, 64));
+ struct ofpbuf *buf = ofputil_encode_error_msg(error, oh);
+ if (buf) {
+ COVERAGE_INC(ofproto_error);
+ queue_tx(buf, ofconn, ofconn->reply_counter);
+ }
}
static void
}
static int
-handle_echo_request(struct ofconn *ofconn, struct ofp_header *oh)
+handle_echo_request(struct ofconn *ofconn, const struct ofp_header *oh)
{
- struct ofp_header *rq = oh;
- queue_tx(make_echo_reply(rq), ofconn, ofconn->reply_counter);
+ queue_tx(make_echo_reply(oh), ofconn, ofconn->reply_counter);
return 0;
}
static int
-handle_features_request(struct ofproto *p, struct ofconn *ofconn,
- struct ofp_header *oh)
+handle_features_request(struct ofconn *ofconn, const struct ofp_header *oh)
{
struct ofp_switch_features *osf;
struct ofpbuf *buf;
struct ofport *port;
osf = make_openflow_xid(sizeof *osf, OFPT_FEATURES_REPLY, oh->xid, &buf);
- osf->datapath_id = htonll(p->datapath_id);
+ osf->datapath_id = htonll(ofconn->ofproto->datapath_id);
osf->n_buffers = htonl(pktbuf_capacity());
osf->n_tables = 2;
osf->capabilities = htonl(OFPC_FLOW_STATS | OFPC_TABLE_STATS |
(1u << OFPAT_SET_TP_DST) |
(1u << OFPAT_ENQUEUE));
- HMAP_FOR_EACH (port, hmap_node, &p->ports) {
+ HMAP_FOR_EACH (port, hmap_node, &ofconn->ofproto->ports) {
hton_ofp_phy_port(ofpbuf_put(buf, &port->opp, sizeof port->opp));
}
}
static int
-handle_get_config_request(struct ofproto *p, struct ofconn *ofconn,
- struct ofp_header *oh)
+handle_get_config_request(struct ofconn *ofconn, const struct ofp_header *oh)
{
struct ofpbuf *buf;
struct ofp_switch_config *osc;
bool drop_frags;
/* Figure out flags. */
- dpif_get_drop_frags(p->dpif, &drop_frags);
+ dpif_get_drop_frags(ofconn->ofproto->dpif, &drop_frags);
flags = drop_frags ? OFPC_FRAG_DROP : OFPC_FRAG_NORMAL;
/* Send reply. */
}
static int
-handle_set_config(struct ofproto *p, struct ofconn *ofconn,
- struct ofp_switch_config *osc)
+handle_set_config(struct ofconn *ofconn, const struct ofp_switch_config *osc)
{
- uint16_t flags;
- int error;
-
- error = check_ofp_message(&osc->header, OFPT_SET_CONFIG, sizeof *osc);
- if (error) {
- return error;
- }
- flags = ntohs(osc->flags);
+ uint16_t flags = ntohs(osc->flags);
if (ofconn->type == OFCONN_PRIMARY && ofconn->role != NX_ROLE_SLAVE) {
switch (flags & OFPC_FRAG_MASK) {
case OFPC_FRAG_NORMAL:
- dpif_set_drop_frags(p->dpif, false);
+ dpif_set_drop_frags(ofconn->ofproto->dpif, false);
break;
case OFPC_FRAG_DROP:
- dpif_set_drop_frags(p->dpif, true);
+ dpif_set_drop_frags(ofconn->ofproto->dpif, true);
break;
default:
VLOG_WARN_RL(&rl, "requested bad fragment mode (flags=%"PRIx16")",
return 0;
}
-static void
-add_output_group_action(struct odp_actions *actions, uint16_t group,
- uint16_t *nf_output_iface)
-{
- odp_actions_add(actions, ODPAT_OUTPUT_GROUP)->output_group.group = group;
-
- if (group == DP_GROUP_ALL || group == DP_GROUP_FLOOD) {
- *nf_output_iface = NF_OUT_FLOOD;
- }
-}
-
-static void
-add_controller_action(struct odp_actions *actions, uint16_t max_len)
-{
- union odp_action *a = odp_actions_add(actions, ODPAT_CONTROLLER);
- a->controller.arg = max_len;
-}
-
-struct action_xlate_ctx {
- /* Input. */
- flow_t flow; /* Flow to which these actions correspond. */
- int recurse; /* Recursion level, via xlate_table_action. */
- struct ofproto *ofproto;
- const struct ofpbuf *packet; /* The packet corresponding to 'flow', or a
- * null pointer if we are revalidating
- * without a packet to refer to. */
-
- /* Output. */
- struct odp_actions *out; /* Datapath actions. */
- tag_type *tags; /* Tags associated with OFPP_NORMAL actions. */
- bool may_set_up_flow; /* True ordinarily; false if the actions must
- * be reassessed for every packet. */
- uint16_t nf_output_iface; /* Output interface index for NetFlow. */
-};
-
/* Maximum depth of flow table recursion (due to NXAST_RESUBMIT actions) in a
* flow translation. */
-#define MAX_RESUBMIT_RECURSION 8
+#define MAX_RESUBMIT_RECURSION 16
static void do_xlate_actions(const union ofp_action *in, size_t n_in,
struct action_xlate_ctx *ctx);
*/
}
- odp_actions_add(ctx->out, ODPAT_OUTPUT)->output.port = port;
+ nl_msg_put_u32(ctx->odp_actions, ODPAT_OUTPUT, port);
ctx->nf_output_iface = port;
}
static struct rule *
-lookup_valid_rule(struct ofproto *ofproto, const flow_t *flow)
+rule_lookup(struct ofproto *ofproto, const struct flow *flow)
{
- struct rule *rule;
- rule = rule_from_cls_rule(classifier_lookup(&ofproto->cls, flow));
-
- /* The rule we found might not be valid, since we could be in need of
- * revalidation. If it is not valid, don't return it. */
- if (rule
- && rule->super
- && ofproto->need_revalidate
- && !revalidate_rule(ofproto, rule)) {
- COVERAGE_INC(ofproto_invalidated);
- return NULL;
- }
-
- return rule;
+ return rule_from_cls_rule(classifier_lookup(&ofproto->cls, flow));
}
static void
* have surprising behavior). */
old_in_port = ctx->flow.in_port;
ctx->flow.in_port = in_port;
- rule = lookup_valid_rule(ctx->ofproto, &ctx->flow);
+ rule = rule_lookup(ctx->ofproto, &ctx->flow);
ctx->flow.in_port = old_in_port;
- if (rule) {
- if (rule->super) {
- rule = rule->super;
- }
+ if (ctx->resubmit_hook) {
+ ctx->resubmit_hook(ctx, rule);
+ }
+ if (rule) {
ctx->recurse++;
do_xlate_actions(rule->actions, rule->n_actions, ctx);
ctx->recurse--;
}
} else {
- struct vlog_rate_limit recurse_rl = VLOG_RATE_LIMIT_INIT(1, 1);
+ static struct vlog_rate_limit recurse_rl = VLOG_RATE_LIMIT_INIT(1, 1);
VLOG_ERR_RL(&recurse_rl, "NXAST_RESUBMIT recursed over %d times",
MAX_RESUBMIT_RECURSION);
}
}
+static void
+flood_packets(struct ofproto *ofproto, uint16_t odp_in_port, uint32_t mask,
+ uint16_t *nf_output_iface, struct ofpbuf *odp_actions)
+{
+ struct ofport *ofport;
+
+ HMAP_FOR_EACH (ofport, hmap_node, &ofproto->ports) {
+ uint16_t odp_port = ofport->odp_port;
+ if (odp_port != odp_in_port && !(ofport->opp.config & mask)) {
+ nl_msg_put_u32(odp_actions, ODPAT_OUTPUT, odp_port);
+ }
+ }
+ *nf_output_iface = NF_OUT_FLOOD;
+}
+
static void
xlate_output_action__(struct action_xlate_ctx *ctx,
uint16_t port, uint16_t max_len)
break;
case OFPP_NORMAL:
if (!ctx->ofproto->ofhooks->normal_cb(&ctx->flow, ctx->packet,
- ctx->out, ctx->tags,
+ ctx->odp_actions, &ctx->tags,
&ctx->nf_output_iface,
ctx->ofproto->aux)) {
COVERAGE_INC(ofproto_uninstallable);
}
break;
case OFPP_FLOOD:
- add_output_group_action(ctx->out, DP_GROUP_FLOOD,
- &ctx->nf_output_iface);
+ flood_packets(ctx->ofproto, ctx->flow.in_port, OFPPC_NO_FLOOD,
+ &ctx->nf_output_iface, ctx->odp_actions);
break;
case OFPP_ALL:
- add_output_group_action(ctx->out, DP_GROUP_ALL, &ctx->nf_output_iface);
+ flood_packets(ctx->ofproto, ctx->flow.in_port, 0,
+ &ctx->nf_output_iface, ctx->odp_actions);
break;
case OFPP_CONTROLLER:
- add_controller_action(ctx->out, max_len);
+ nl_msg_put_u64(ctx->odp_actions, ODPAT_CONTROLLER, max_len);
break;
case OFPP_LOCAL:
add_output_action(ctx, ODPP_LOCAL);
static void
remove_pop_action(struct action_xlate_ctx *ctx)
{
- size_t n = ctx->out->n_actions;
- if (n > 0 && ctx->out->actions[n - 1].type == ODPAT_POP_PRIORITY) {
- ctx->out->n_actions--;
+ if (ctx->odp_actions->size == ctx->last_pop_priority) {
+ ctx->odp_actions->size -= NLA_ALIGN(NLA_HDRLEN);
+ ctx->last_pop_priority = -1;
+ }
+}
+
+static void
+add_pop_action(struct action_xlate_ctx *ctx)
+{
+ if (ctx->odp_actions->size != ctx->last_pop_priority) {
+ nl_msg_put_flag(ctx->odp_actions, ODPAT_POP_PRIORITY);
+ ctx->last_pop_priority = ctx->odp_actions->size;
}
}
/* Add ODP actions. */
remove_pop_action(ctx);
- odp_actions_add(ctx->out, ODPAT_SET_PRIORITY)->priority.priority
- = priority;
+ nl_msg_put_u32(ctx->odp_actions, ODPAT_SET_PRIORITY, priority);
add_output_action(ctx, odp_port);
- odp_actions_add(ctx->out, ODPAT_POP_PRIORITY);
+ add_pop_action(ctx);
/* Update NetFlow output port. */
if (ctx->nf_output_iface == NF_OUT_DROP) {
}
remove_pop_action(ctx);
- odp_actions_add(ctx->out, ODPAT_SET_PRIORITY)->priority.priority
- = priority;
+ nl_msg_put_u32(ctx->odp_actions, ODPAT_SET_PRIORITY, priority);
+}
+
+static void
+xlate_set_dl_tci(struct action_xlate_ctx *ctx)
+{
+ ovs_be16 tci = ctx->flow.vlan_tci;
+ if (!(tci & htons(VLAN_CFI))) {
+ nl_msg_put_flag(ctx->odp_actions, ODPAT_STRIP_VLAN);
+ } else {
+ nl_msg_put_be16(ctx->odp_actions, ODPAT_SET_DL_TCI,
+ tci & ~htons(VLAN_CFI));
+ }
+}
+
+static void
+xlate_reg_move_action(struct action_xlate_ctx *ctx,
+ const struct nx_action_reg_move *narm)
+{
+ ovs_be16 old_tci = ctx->flow.vlan_tci;
+
+ nxm_execute_reg_move(narm, &ctx->flow);
+
+ if (ctx->flow.vlan_tci != old_tci) {
+ xlate_set_dl_tci(ctx);
+ }
}
static void
const struct nx_action_resubmit *nar;
const struct nx_action_set_tunnel *nast;
const struct nx_action_set_queue *nasq;
- union odp_action *oa;
- int subtype = ntohs(nah->subtype);
+ const struct nx_action_multipath *nam;
+ enum nx_action_subtype subtype = ntohs(nah->subtype);
+ ovs_be64 tun_id;
assert(nah->vendor == htonl(NX_VENDOR_ID));
switch (subtype) {
case NXAST_SET_TUNNEL:
nast = (const struct nx_action_set_tunnel *) nah;
- oa = odp_actions_add(ctx->out, ODPAT_SET_TUNNEL);
- ctx->flow.tun_id = oa->tunnel.tun_id = nast->tun_id;
+ tun_id = htonll(ntohl(nast->tun_id));
+ nl_msg_put_be64(ctx->odp_actions, ODPAT_SET_TUNNEL, tun_id);
+ ctx->flow.tun_id = tun_id;
break;
case NXAST_DROP_SPOOFED_ARP:
if (ctx->flow.dl_type == htons(ETH_TYPE_ARP)) {
- odp_actions_add(ctx->out, ODPAT_DROP_SPOOFED_ARP);
+ nl_msg_put_flag(ctx->odp_actions, ODPAT_DROP_SPOOFED_ARP);
}
break;
break;
case NXAST_POP_QUEUE:
- odp_actions_add(ctx->out, ODPAT_POP_PRIORITY);
+ add_pop_action(ctx);
+ break;
+
+ case NXAST_REG_MOVE:
+ xlate_reg_move_action(ctx, (const struct nx_action_reg_move *) nah);
+ break;
+
+ case NXAST_REG_LOAD:
+ nxm_execute_reg_load((const struct nx_action_reg_load *) nah,
+ &ctx->flow);
+
+ case NXAST_NOTE:
+ /* Nothing to do. */
+ break;
+
+ case NXAST_SET_TUNNEL64:
+ tun_id = ((const struct nx_action_set_tunnel64 *) nah)->tun_id;
+ nl_msg_put_be64(ctx->odp_actions, ODPAT_SET_TUNNEL, tun_id);
+ ctx->flow.tun_id = tun_id;
+ break;
+
+ case NXAST_MULTIPATH:
+ nam = (const struct nx_action_multipath *) nah;
+ multipath_execute(nam, &ctx->flow);
break;
/* If you add a new action here that modifies flow data, don't forget to
* update the flow key in ctx->flow at the same time. */
+ case NXAST_SNAT__OBSOLETE:
default:
- VLOG_DBG_RL(&rl, "unknown Nicira action type %"PRIu16, subtype);
+ VLOG_DBG_RL(&rl, "unknown Nicira action type %d", (int) subtype);
break;
}
}
}
for (ia = actions_first(&iter, in, n_in); ia; ia = actions_next(&iter)) {
- uint16_t type = ntohs(ia->type);
- union odp_action *oa;
+ enum ofp_action_type type = ntohs(ia->type);
+ const struct ofp_action_dl_addr *oada;
switch (type) {
case OFPAT_OUTPUT:
break;
case OFPAT_SET_VLAN_VID:
- oa = odp_actions_add(ctx->out, ODPAT_SET_VLAN_VID);
- ctx->flow.dl_vlan = oa->vlan_vid.vlan_vid = ia->vlan_vid.vlan_vid;
+ ctx->flow.vlan_tci &= ~htons(VLAN_VID_MASK);
+ ctx->flow.vlan_tci |= ia->vlan_vid.vlan_vid | htons(VLAN_CFI);
+ xlate_set_dl_tci(ctx);
break;
case OFPAT_SET_VLAN_PCP:
- oa = odp_actions_add(ctx->out, ODPAT_SET_VLAN_PCP);
- ctx->flow.dl_vlan_pcp = oa->vlan_pcp.vlan_pcp = ia->vlan_pcp.vlan_pcp;
+ ctx->flow.vlan_tci &= ~htons(VLAN_PCP_MASK);
+ ctx->flow.vlan_tci |= htons(
+ (ia->vlan_pcp.vlan_pcp << VLAN_PCP_SHIFT) | VLAN_CFI);
+ xlate_set_dl_tci(ctx);
break;
case OFPAT_STRIP_VLAN:
- odp_actions_add(ctx->out, ODPAT_STRIP_VLAN);
- ctx->flow.dl_vlan = htons(OFP_VLAN_NONE);
- ctx->flow.dl_vlan_pcp = 0;
+ ctx->flow.vlan_tci = htons(0);
+ xlate_set_dl_tci(ctx);
break;
case OFPAT_SET_DL_SRC:
- oa = odp_actions_add(ctx->out, ODPAT_SET_DL_SRC);
- memcpy(oa->dl_addr.dl_addr,
- ((struct ofp_action_dl_addr *) ia)->dl_addr, ETH_ADDR_LEN);
- memcpy(ctx->flow.dl_src,
- ((struct ofp_action_dl_addr *) ia)->dl_addr, ETH_ADDR_LEN);
+ oada = ((struct ofp_action_dl_addr *) ia);
+ nl_msg_put_unspec(ctx->odp_actions, ODPAT_SET_DL_SRC,
+ oada->dl_addr, ETH_ADDR_LEN);
+ memcpy(ctx->flow.dl_src, oada->dl_addr, ETH_ADDR_LEN);
break;
case OFPAT_SET_DL_DST:
- oa = odp_actions_add(ctx->out, ODPAT_SET_DL_DST);
- memcpy(oa->dl_addr.dl_addr,
- ((struct ofp_action_dl_addr *) ia)->dl_addr, ETH_ADDR_LEN);
- memcpy(ctx->flow.dl_dst,
- ((struct ofp_action_dl_addr *) ia)->dl_addr, ETH_ADDR_LEN);
+ oada = ((struct ofp_action_dl_addr *) ia);
+ nl_msg_put_unspec(ctx->odp_actions, ODPAT_SET_DL_DST,
+ oada->dl_addr, ETH_ADDR_LEN);
+ memcpy(ctx->flow.dl_dst, oada->dl_addr, ETH_ADDR_LEN);
break;
case OFPAT_SET_NW_SRC:
- oa = odp_actions_add(ctx->out, ODPAT_SET_NW_SRC);
- ctx->flow.nw_src = oa->nw_addr.nw_addr = ia->nw_addr.nw_addr;
+ nl_msg_put_be32(ctx->odp_actions, ODPAT_SET_NW_SRC,
+ ia->nw_addr.nw_addr);
+ ctx->flow.nw_src = ia->nw_addr.nw_addr;
break;
case OFPAT_SET_NW_DST:
- oa = odp_actions_add(ctx->out, ODPAT_SET_NW_DST);
- ctx->flow.nw_dst = oa->nw_addr.nw_addr = ia->nw_addr.nw_addr;
+ nl_msg_put_be32(ctx->odp_actions, ODPAT_SET_NW_DST,
+ ia->nw_addr.nw_addr);
+ ctx->flow.nw_dst = ia->nw_addr.nw_addr;
break;
case OFPAT_SET_NW_TOS:
- oa = odp_actions_add(ctx->out, ODPAT_SET_NW_TOS);
- ctx->flow.nw_tos = oa->nw_tos.nw_tos = ia->nw_tos.nw_tos;
+ nl_msg_put_u8(ctx->odp_actions, ODPAT_SET_NW_TOS,
+ ia->nw_tos.nw_tos);
+ ctx->flow.nw_tos = ia->nw_tos.nw_tos;
break;
case OFPAT_SET_TP_SRC:
- oa = odp_actions_add(ctx->out, ODPAT_SET_TP_SRC);
- ctx->flow.tp_src = oa->tp_port.tp_port = ia->tp_port.tp_port;
+ nl_msg_put_be16(ctx->odp_actions, ODPAT_SET_TP_SRC,
+ ia->tp_port.tp_port);
+ ctx->flow.tp_src = ia->tp_port.tp_port;
break;
case OFPAT_SET_TP_DST:
- oa = odp_actions_add(ctx->out, ODPAT_SET_TP_DST);
- ctx->flow.tp_dst = oa->tp_port.tp_port = ia->tp_port.tp_port;
+ nl_msg_put_be16(ctx->odp_actions, ODPAT_SET_TP_DST,
+ ia->tp_port.tp_port);
+ ctx->flow.tp_dst = ia->tp_port.tp_port;
break;
case OFPAT_VENDOR:
break;
default:
- VLOG_DBG_RL(&rl, "unknown action type %"PRIu16, type);
+ VLOG_DBG_RL(&rl, "unknown action type %d", (int) type);
break;
}
}
}
-static int
-xlate_actions(const union ofp_action *in, size_t n_in,
- const flow_t *flow, struct ofproto *ofproto,
- const struct ofpbuf *packet,
- struct odp_actions *out, tag_type *tags, bool *may_set_up_flow,
- uint16_t *nf_output_iface)
+static void
+action_xlate_ctx_init(struct action_xlate_ctx *ctx,
+ struct ofproto *ofproto, const struct flow *flow,
+ const struct ofpbuf *packet)
+{
+ ctx->ofproto = ofproto;
+ ctx->flow = *flow;
+ ctx->packet = packet;
+ ctx->resubmit_hook = NULL;
+}
+
+static struct ofpbuf *
+xlate_actions(struct action_xlate_ctx *ctx,
+ const union ofp_action *in, size_t n_in)
{
- tag_type no_tags = 0;
- struct action_xlate_ctx ctx;
COVERAGE_INC(ofproto_ofp2odp);
- odp_actions_init(out);
- ctx.flow = *flow;
- ctx.recurse = 0;
- ctx.ofproto = ofproto;
- ctx.packet = packet;
- ctx.out = out;
- ctx.tags = tags ? tags : &no_tags;
- ctx.may_set_up_flow = true;
- ctx.nf_output_iface = NF_OUT_DROP;
- do_xlate_actions(in, n_in, &ctx);
- remove_pop_action(&ctx);
+
+ ctx->odp_actions = ofpbuf_new(512);
+ ctx->tags = 0;
+ ctx->may_set_up_flow = true;
+ ctx->nf_output_iface = NF_OUT_DROP;
+ ctx->recurse = 0;
+ ctx->last_pop_priority = -1;
+ do_xlate_actions(in, n_in, ctx);
+ remove_pop_action(ctx);
/* Check with in-band control to see if we're allowed to set up this
* flow. */
- if (!in_band_rule_check(ofproto->in_band, flow, out)) {
- ctx.may_set_up_flow = false;
+ if (!in_band_rule_check(ctx->ofproto->in_band, &ctx->flow,
+ ctx->odp_actions->data, ctx->odp_actions->size)) {
+ ctx->may_set_up_flow = false;
}
- if (may_set_up_flow) {
- *may_set_up_flow = ctx.may_set_up_flow;
- }
- if (nf_output_iface) {
- *nf_output_iface = ctx.nf_output_iface;
- }
- if (odp_actions_overflow(out)) {
- COVERAGE_INC(odp_overflow);
- odp_actions_init(out);
- return ofp_mkerr(OFPET_BAD_ACTION, OFPBAC_TOO_MANY);
- }
- return 0;
+ return ctx->odp_actions;
}
/* Checks whether 'ofconn' is a slave controller. If so, returns an OpenFlow
* error message code (composed with ofp_mkerr()) for the caller to propagate
* upward. Otherwise, returns 0.
*
- * 'oh' is used to make log messages more informative. */
+ * The log message mentions 'msg_type'. */
static int
-reject_slave_controller(struct ofconn *ofconn, const struct ofp_header *oh)
+reject_slave_controller(struct ofconn *ofconn, const const char *msg_type)
{
if (ofconn->type == OFCONN_PRIMARY && ofconn->role == NX_ROLE_SLAVE) {
static struct vlog_rate_limit perm_rl = VLOG_RATE_LIMIT_INIT(1, 5);
- char *type_name;
-
- type_name = ofp_message_type_to_string(oh->type);
VLOG_WARN_RL(&perm_rl, "rejecting %s message from slave controller",
- type_name);
- free(type_name);
+ msg_type);
return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_EPERM);
} else {
}
static int
-handle_packet_out(struct ofproto *p, struct ofconn *ofconn,
- struct ofp_header *oh)
+handle_packet_out(struct ofconn *ofconn, const struct ofp_header *oh)
{
+ struct ofproto *p = ofconn->ofproto;
struct ofp_packet_out *opo;
struct ofpbuf payload, *buffer;
- struct odp_actions actions;
- int n_actions;
+ union ofp_action *ofp_actions;
+ struct action_xlate_ctx ctx;
+ struct ofpbuf *odp_actions;
+ struct ofpbuf request;
+ struct flow flow;
+ size_t n_ofp_actions;
uint16_t in_port;
- flow_t flow;
int error;
- error = reject_slave_controller(ofconn, oh);
+ COVERAGE_INC(ofproto_packet_out);
+
+ error = reject_slave_controller(ofconn, "OFPT_PACKET_OUT");
if (error) {
return error;
}
- error = check_ofp_packet_out(oh, &payload, &n_actions, p->max_ports);
+ /* Get ofp_packet_out. */
+ ofpbuf_use_const(&request, oh, ntohs(oh->length));
+ opo = ofpbuf_pull(&request, offsetof(struct ofp_packet_out, actions));
+
+ /* Get actions. */
+ error = ofputil_pull_actions(&request, ntohs(opo->actions_len),
+ &ofp_actions, &n_ofp_actions);
if (error) {
return error;
}
- opo = (struct ofp_packet_out *) oh;
- COVERAGE_INC(ofproto_packet_out);
+ /* Get payload. */
if (opo->buffer_id != htonl(UINT32_MAX)) {
error = pktbuf_retrieve(ofconn->pktbuf, ntohl(opo->buffer_id),
&buffer, &in_port);
}
payload = *buffer;
} else {
+ payload = request;
buffer = NULL;
}
- flow_extract(&payload, 0, ofp_port_to_odp_port(ntohs(opo->in_port)), &flow);
- error = xlate_actions((const union ofp_action *) opo->actions, n_actions,
- &flow, p, &payload, &actions, NULL, NULL, NULL);
+ /* Extract flow, check actions. */
+ flow_extract(&payload, 0, ofp_port_to_odp_port(ntohs(opo->in_port)),
+ &flow);
+ error = validate_actions(ofp_actions, n_ofp_actions, &flow, p->max_ports);
if (error) {
- return error;
+ goto exit;
}
- dpif_execute(p->dpif, flow.in_port, actions.actions, actions.n_actions,
- &payload);
- ofpbuf_delete(buffer);
+ /* Send. */
+ action_xlate_ctx_init(&ctx, p, &flow, &payload);
+ odp_actions = xlate_actions(&ctx, ofp_actions, n_ofp_actions);
+ dpif_execute(p->dpif, odp_actions->data, odp_actions->size, &payload);
+ ofpbuf_delete(odp_actions);
+exit:
+ ofpbuf_delete(buffer);
return 0;
}
netdev_turn_flags_on(port->netdev, NETDEV_UP, true);
}
}
-#define REVALIDATE_BITS (OFPPC_NO_RECV | OFPPC_NO_RECV_STP | OFPPC_NO_FWD)
+#define REVALIDATE_BITS (OFPPC_NO_RECV | OFPPC_NO_RECV_STP | \
+ OFPPC_NO_FWD | OFPPC_NO_FLOOD)
if (mask & REVALIDATE_BITS) {
COVERAGE_INC(ofproto_costly_flags);
port->opp.config ^= mask & REVALIDATE_BITS;
p->need_revalidate = true;
}
#undef REVALIDATE_BITS
- if (mask & OFPPC_NO_FLOOD) {
- port->opp.config ^= OFPPC_NO_FLOOD;
- refresh_port_groups(p);
- }
if (mask & OFPPC_NO_PACKET_IN) {
port->opp.config ^= OFPPC_NO_PACKET_IN;
}
}
static int
-handle_port_mod(struct ofproto *p, struct ofconn *ofconn,
- struct ofp_header *oh)
+handle_port_mod(struct ofconn *ofconn, const struct ofp_header *oh)
{
- const struct ofp_port_mod *opm;
+ struct ofproto *p = ofconn->ofproto;
+ const struct ofp_port_mod *opm = (const struct ofp_port_mod *) oh;
struct ofport *port;
int error;
- error = reject_slave_controller(ofconn, oh);
- if (error) {
- return error;
- }
- error = check_ofp_message(oh, OFPT_PORT_MOD, sizeof *opm);
+ error = reject_slave_controller(ofconn, "OFPT_PORT_MOD");
if (error) {
return error;
}
- opm = (struct ofp_port_mod *) oh;
port = get_port(p, ofp_port_to_odp_port(ntohs(opm->port_no)));
if (!port) {
}
static struct ofpbuf *
-make_stats_reply(uint32_t xid, uint16_t type, size_t body_len)
+make_ofp_stats_reply(ovs_be32 xid, ovs_be16 type, size_t body_len)
{
struct ofp_stats_reply *osr;
struct ofpbuf *msg;
}
static struct ofpbuf *
-start_stats_reply(const struct ofp_stats_request *request, size_t body_len)
+start_ofp_stats_reply(const struct ofp_header *request, size_t body_len)
{
- return make_stats_reply(request->header.xid, request->type, body_len);
+ const struct ofp_stats_request *osr
+ = (const struct ofp_stats_request *) request;
+ return make_ofp_stats_reply(osr->header.xid, osr->type, body_len);
}
static void *
-append_stats_reply(size_t nbytes, struct ofconn *ofconn, struct ofpbuf **msgp)
+append_ofp_stats_reply(size_t nbytes, struct ofconn *ofconn,
+ struct ofpbuf **msgp)
{
struct ofpbuf *msg = *msgp;
assert(nbytes <= UINT16_MAX - sizeof(struct ofp_stats_reply));
if (nbytes + msg->size > UINT16_MAX) {
struct ofp_stats_reply *reply = msg->data;
reply->flags = htons(OFPSF_REPLY_MORE);
- *msgp = make_stats_reply(reply->header.xid, reply->type, nbytes);
+ *msgp = make_ofp_stats_reply(reply->header.xid, reply->type, nbytes);
queue_tx(msg, ofconn, ofconn->reply_counter);
}
return ofpbuf_put_uninit(*msgp, nbytes);
}
+static struct ofpbuf *
+make_nxstats_reply(ovs_be32 xid, ovs_be32 subtype, size_t body_len)
+{
+ struct nicira_stats_msg *nsm;
+ struct ofpbuf *msg;
+
+ msg = ofpbuf_new(MIN(sizeof *nsm + body_len, UINT16_MAX));
+ nsm = put_openflow_xid(sizeof *nsm, OFPT_STATS_REPLY, xid, msg);
+ nsm->type = htons(OFPST_VENDOR);
+ nsm->flags = htons(0);
+ nsm->vendor = htonl(NX_VENDOR_ID);
+ nsm->subtype = subtype;
+ return msg;
+}
+
+static struct ofpbuf *
+start_nxstats_reply(const struct nicira_stats_msg *request, size_t body_len)
+{
+ return make_nxstats_reply(request->header.xid, request->subtype, body_len);
+}
+
+static void
+append_nxstats_reply(size_t nbytes, struct ofconn *ofconn,
+ struct ofpbuf **msgp)
+{
+ struct ofpbuf *msg = *msgp;
+ assert(nbytes <= UINT16_MAX - sizeof(struct nicira_stats_msg));
+ if (nbytes + msg->size > UINT16_MAX) {
+ struct nicira_stats_msg *reply = msg->data;
+ reply->flags = htons(OFPSF_REPLY_MORE);
+ *msgp = make_nxstats_reply(reply->header.xid, reply->subtype, nbytes);
+ queue_tx(msg, ofconn, ofconn->reply_counter);
+ }
+ ofpbuf_prealloc_tailroom(*msgp, nbytes);
+}
+
static int
-handle_desc_stats_request(struct ofproto *p, struct ofconn *ofconn,
- struct ofp_stats_request *request)
+handle_desc_stats_request(struct ofconn *ofconn,
+ const struct ofp_header *request)
{
+ struct ofproto *p = ofconn->ofproto;
struct ofp_desc_stats *ods;
struct ofpbuf *msg;
- msg = start_stats_reply(request, sizeof *ods);
- ods = append_stats_reply(sizeof *ods, ofconn, &msg);
+ msg = start_ofp_stats_reply(request, sizeof *ods);
+ ods = append_ofp_stats_reply(sizeof *ods, ofconn, &msg);
memset(ods, 0, sizeof *ods);
ovs_strlcpy(ods->mfr_desc, p->mfr_desc, sizeof ods->mfr_desc);
ovs_strlcpy(ods->hw_desc, p->hw_desc, sizeof ods->hw_desc);
return 0;
}
-static void
-count_subrules(struct cls_rule *cls_rule, void *n_subrules_)
-{
- struct rule *rule = rule_from_cls_rule(cls_rule);
- int *n_subrules = n_subrules_;
-
- if (rule->super) {
- (*n_subrules)++;
- }
-}
-
static int
-handle_table_stats_request(struct ofproto *p, struct ofconn *ofconn,
- struct ofp_stats_request *request)
+handle_table_stats_request(struct ofconn *ofconn,
+ const struct ofp_header *request)
{
+ struct ofproto *p = ofconn->ofproto;
struct ofp_table_stats *ots;
struct ofpbuf *msg;
- struct odp_stats dpstats;
- int n_exact, n_subrules, n_wild;
-
- msg = start_stats_reply(request, sizeof *ots * 2);
- /* Count rules of various kinds. */
- n_subrules = 0;
- classifier_for_each(&p->cls, CLS_INC_EXACT, count_subrules, &n_subrules);
- n_exact = classifier_count_exact(&p->cls) - n_subrules;
- n_wild = classifier_count(&p->cls) - classifier_count_exact(&p->cls);
-
- /* Hash table. */
- dpif_get_dp_stats(p->dpif, &dpstats);
- ots = append_stats_reply(sizeof *ots, ofconn, &msg);
- memset(ots, 0, sizeof *ots);
- ots->table_id = TABLEID_HASH;
- strcpy(ots->name, "hash");
- ots->wildcards = htonl(0);
- ots->max_entries = htonl(dpstats.max_capacity);
- ots->active_count = htonl(n_exact);
- ots->lookup_count = htonll(dpstats.n_frags + dpstats.n_hit +
- dpstats.n_missed);
- ots->matched_count = htonll(dpstats.n_hit); /* XXX */
+ msg = start_ofp_stats_reply(request, sizeof *ots * 2);
/* Classifier table. */
- ots = append_stats_reply(sizeof *ots, ofconn, &msg);
+ ots = append_ofp_stats_reply(sizeof *ots, ofconn, &msg);
memset(ots, 0, sizeof *ots);
- ots->table_id = TABLEID_CLASSIFIER;
strcpy(ots->name, "classifier");
- ots->wildcards = p->tun_id_from_cookie ? htonl(OVSFW_ALL)
- : htonl(OFPFW_ALL);
- ots->max_entries = htonl(65536);
- ots->active_count = htonl(n_wild);
+ ots->wildcards = (ofconn->flow_format == NXFF_OPENFLOW10
+ ? htonl(OFPFW_ALL) : htonl(OVSFW_ALL));
+ ots->max_entries = htonl(1024 * 1024); /* An arbitrary big number. */
+ ots->active_count = htonl(classifier_count(&p->cls));
ots->lookup_count = htonll(0); /* XXX */
ots->matched_count = htonll(0); /* XXX */
* netdev_get_stats() will log errors. */
netdev_get_stats(port->netdev, &stats);
- ops = append_stats_reply(sizeof *ops, ofconn, msgp);
+ ops = append_ofp_stats_reply(sizeof *ops, ofconn, msgp);
ops->port_no = htons(port->opp.port_no);
memset(ops->pad, 0, sizeof ops->pad);
ops->rx_packets = htonll(stats.rx_packets);
}
static int
-handle_port_stats_request(struct ofproto *p, struct ofconn *ofconn,
- struct ofp_stats_request *osr,
- size_t arg_size)
+handle_port_stats_request(struct ofconn *ofconn, const struct ofp_header *oh)
{
- struct ofp_port_stats_request *psr;
+ struct ofproto *p = ofconn->ofproto;
+ const struct ofp_port_stats_request *psr = ofputil_stats_body(oh);
struct ofp_port_stats *ops;
struct ofpbuf *msg;
struct ofport *port;
- if (arg_size != sizeof *psr) {
- return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_BAD_LEN);
- }
- psr = (struct ofp_port_stats_request *) osr->body;
-
- msg = start_stats_reply(osr, sizeof *ops * 16);
+ msg = start_ofp_stats_reply(oh, sizeof *ops * 16);
if (psr->port_no != htons(OFPP_NONE)) {
port = get_port(p, ofp_port_to_odp_port(ntohs(psr->port_no)));
if (port) {
return 0;
}
-struct flow_stats_cbdata {
- struct ofproto *ofproto;
- struct ofconn *ofconn;
- uint16_t out_port;
- struct ofpbuf *msg;
-};
-
/* Obtains statistic counters for 'rule' within 'p' and stores them into
- * '*packet_countp' and '*byte_countp'. If 'rule' is a wildcarded rule, the
- * returned statistic include statistics for all of 'rule''s subrules. */
+ * '*packet_countp' and '*byte_countp'. The returned statistics include
+ * statistics for all of 'rule''s facets. */
static void
query_stats(struct ofproto *p, struct rule *rule,
uint64_t *packet_countp, uint64_t *byte_countp)
{
uint64_t packet_count, byte_count;
- struct rule *subrule;
+ struct facet *facet;
struct odp_flow *odp_flows;
size_t n_odp_flows;
/* Start from historical data for 'rule' itself that are no longer tracked
- * by the datapath. This counts, for example, subrules that have
- * expired. */
+ * by the datapath. This counts, for example, facets that have expired. */
packet_count = rule->packet_count;
byte_count = rule->byte_count;
- /* Prepare to ask the datapath for statistics on 'rule', or if it is
- * wildcarded then on all of its subrules.
+ /* Prepare to ask the datapath for statistics on all of the rule's facets.
*
* Also, add any statistics that are not tracked by the datapath for each
- * subrule. This includes, for example, statistics for packets that were
+ * facet. This includes, for example, statistics for packets that were
* executed "by hand" by ofproto via dpif_execute() but must be accounted
- * to a flow. */
- n_odp_flows = rule->cr.wc.wildcards ? list_size(&rule->list) : 1;
- odp_flows = xzalloc(n_odp_flows * sizeof *odp_flows);
- if (rule->cr.wc.wildcards) {
- size_t i = 0;
- LIST_FOR_EACH (subrule, list, &rule->list) {
- odp_flows[i++].key = subrule->cr.flow;
- packet_count += subrule->packet_count;
- byte_count += subrule->byte_count;
- }
- } else {
- odp_flows[0].key = rule->cr.flow;
+ * to a rule. */
+ odp_flows = xzalloc(list_size(&rule->facets) * sizeof *odp_flows);
+ n_odp_flows = 0;
+ LIST_FOR_EACH (facet, list_node, &rule->facets) {
+ struct odp_flow *odp_flow = &odp_flows[n_odp_flows++];
+ odp_flow_key_from_flow(&odp_flow->key, &facet->flow);
+ packet_count += facet->packet_count;
+ byte_count += facet->byte_count;
}
/* Fetch up-to-date statistics from the datapath and add them in. */
if (!dpif_flow_get_multiple(p->dpif, odp_flows, n_odp_flows)) {
size_t i;
+
for (i = 0; i < n_odp_flows; i++) {
struct odp_flow *odp_flow = &odp_flows[i];
packet_count += odp_flow->stats.n_packets;
}
static void
-flow_stats_cb(struct cls_rule *rule_, void *cbdata_)
+calc_flow_duration(long long int start, ovs_be32 *sec, ovs_be32 *nsec)
+{
+ long long int msecs = time_msec() - start;
+ *sec = htonl(msecs / 1000);
+ *nsec = htonl((msecs % 1000) * (1000 * 1000));
+}
+
+static void
+put_ofp_flow_stats(struct ofconn *ofconn, struct rule *rule,
+ ovs_be16 out_port, struct ofpbuf **replyp)
{
- struct rule *rule = rule_from_cls_rule(rule_);
- struct flow_stats_cbdata *cbdata = cbdata_;
struct ofp_flow_stats *ofs;
uint64_t packet_count, byte_count;
size_t act_len, len;
- long long int tdiff = time_msec() - rule->created;
- uint32_t sec = tdiff / 1000;
- uint32_t msec = tdiff - (sec * 1000);
- if (rule_is_hidden(rule) || !rule_has_out_port(rule, cbdata->out_port)) {
+ if (rule_is_hidden(rule) || !rule_has_out_port(rule, out_port)) {
return;
}
act_len = sizeof *rule->actions * rule->n_actions;
len = offsetof(struct ofp_flow_stats, actions) + act_len;
- query_stats(cbdata->ofproto, rule, &packet_count, &byte_count);
+ query_stats(ofconn->ofproto, rule, &packet_count, &byte_count);
- ofs = append_stats_reply(len, cbdata->ofconn, &cbdata->msg);
+ ofs = append_ofp_stats_reply(len, ofconn, replyp);
ofs->length = htons(len);
- ofs->table_id = rule->cr.wc.wildcards ? TABLEID_CLASSIFIER : TABLEID_HASH;
+ ofs->table_id = 0;
ofs->pad = 0;
- flow_to_match(&rule->cr.flow, rule->cr.wc.wildcards,
- cbdata->ofproto->tun_id_from_cookie, &ofs->match);
- ofs->duration_sec = htonl(sec);
- ofs->duration_nsec = htonl(msec * 1000000);
- ofs->cookie = rule->flow_cookie;
+ ofputil_cls_rule_to_match(&rule->cr, ofconn->flow_format, &ofs->match,
+ rule->flow_cookie, &ofs->cookie);
+ calc_flow_duration(rule->created, &ofs->duration_sec, &ofs->duration_nsec);
ofs->priority = htons(rule->cr.priority);
ofs->idle_timeout = htons(rule->idle_timeout);
ofs->hard_timeout = htons(rule->hard_timeout);
}
}
+static bool
+is_valid_table(uint8_t table_id)
+{
+ return table_id == 0 || table_id == 0xff;
+}
+
static int
-table_id_to_include(uint8_t table_id)
+handle_flow_stats_request(struct ofconn *ofconn, const struct ofp_header *oh)
+{
+ const struct ofp_flow_stats_request *fsr = ofputil_stats_body(oh);
+ struct ofpbuf *reply;
+
+ COVERAGE_INC(ofproto_flows_req);
+ reply = start_ofp_stats_reply(oh, 1024);
+ if (is_valid_table(fsr->table_id)) {
+ struct cls_cursor cursor;
+ struct cls_rule target;
+ struct rule *rule;
+
+ ofputil_cls_rule_from_match(&fsr->match, 0, NXFF_OPENFLOW10, 0,
+ &target);
+ cls_cursor_init(&cursor, &ofconn->ofproto->cls, &target);
+ CLS_CURSOR_FOR_EACH (rule, cr, &cursor) {
+ put_ofp_flow_stats(ofconn, rule, fsr->out_port, &reply);
+ }
+ }
+ queue_tx(reply, ofconn, ofconn->reply_counter);
+
+ return 0;
+}
+
+static void
+put_nx_flow_stats(struct ofconn *ofconn, struct rule *rule,
+ ovs_be16 out_port, struct ofpbuf **replyp)
{
- return (table_id == TABLEID_HASH ? CLS_INC_EXACT
- : table_id == TABLEID_CLASSIFIER ? CLS_INC_WILD
- : table_id == 0xff ? CLS_INC_ALL
- : 0);
+ struct nx_flow_stats *nfs;
+ uint64_t packet_count, byte_count;
+ size_t act_len, start_len;
+ struct ofpbuf *reply;
+
+ if (rule_is_hidden(rule) || !rule_has_out_port(rule, out_port)) {
+ return;
+ }
+
+ query_stats(ofconn->ofproto, rule, &packet_count, &byte_count);
+
+ act_len = sizeof *rule->actions * rule->n_actions;
+
+ start_len = (*replyp)->size;
+ append_nxstats_reply(sizeof *nfs + NXM_MAX_LEN + act_len, ofconn, replyp);
+ reply = *replyp;
+
+ nfs = ofpbuf_put_uninit(reply, sizeof *nfs);
+ nfs->table_id = 0;
+ nfs->pad = 0;
+ calc_flow_duration(rule->created, &nfs->duration_sec, &nfs->duration_nsec);
+ nfs->cookie = rule->flow_cookie;
+ nfs->priority = htons(rule->cr.priority);
+ nfs->idle_timeout = htons(rule->idle_timeout);
+ nfs->hard_timeout = htons(rule->hard_timeout);
+ nfs->match_len = htons(nx_put_match(reply, &rule->cr));
+ memset(nfs->pad2, 0, sizeof nfs->pad2);
+ nfs->packet_count = htonll(packet_count);
+ nfs->byte_count = htonll(byte_count);
+ if (rule->n_actions > 0) {
+ ofpbuf_put(reply, rule->actions, act_len);
+ }
+ nfs->length = htons(reply->size - start_len);
}
static int
-handle_flow_stats_request(struct ofproto *p, struct ofconn *ofconn,
- const struct ofp_stats_request *osr,
- size_t arg_size)
+handle_nxst_flow(struct ofconn *ofconn, const struct ofp_header *oh)
{
- struct ofp_flow_stats_request *fsr;
- struct flow_stats_cbdata cbdata;
+ struct nx_flow_stats_request *nfsr;
struct cls_rule target;
+ struct ofpbuf *reply;
+ struct ofpbuf b;
+ int error;
- if (arg_size != sizeof *fsr) {
+ ofpbuf_use_const(&b, oh, ntohs(oh->length));
+
+ /* Dissect the message. */
+ nfsr = ofpbuf_pull(&b, sizeof *nfsr);
+ error = nx_pull_match(&b, ntohs(nfsr->match_len), 0, &target);
+ if (error) {
+ return error;
+ }
+ if (b.size) {
return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_BAD_LEN);
}
- fsr = (struct ofp_flow_stats_request *) osr->body;
COVERAGE_INC(ofproto_flows_req);
- cbdata.ofproto = p;
- cbdata.ofconn = ofconn;
- cbdata.out_port = fsr->out_port;
- cbdata.msg = start_stats_reply(osr, 1024);
- cls_rule_from_match(&fsr->match, 0, false, 0, &target);
- classifier_for_each_match(&p->cls, &target,
- table_id_to_include(fsr->table_id),
- flow_stats_cb, &cbdata);
- queue_tx(cbdata.msg, ofconn, ofconn->reply_counter);
+ reply = start_nxstats_reply(&nfsr->nsm, 1024);
+ if (is_valid_table(nfsr->table_id)) {
+ struct cls_cursor cursor;
+ struct rule *rule;
+
+ cls_cursor_init(&cursor, &ofconn->ofproto->cls, &target);
+ CLS_CURSOR_FOR_EACH (rule, cr, &cursor) {
+ put_nx_flow_stats(ofconn, rule, nfsr->out_port, &reply);
+ }
+ }
+ queue_tx(reply, ofconn, ofconn->reply_counter);
+
return 0;
}
-struct flow_stats_ds_cbdata {
- struct ofproto *ofproto;
- struct ds *results;
-};
-
static void
-flow_stats_ds_cb(struct cls_rule *rule_, void *cbdata_)
+flow_stats_ds(struct ofproto *ofproto, struct rule *rule, struct ds *results)
{
- struct rule *rule = rule_from_cls_rule(rule_);
- struct flow_stats_ds_cbdata *cbdata = cbdata_;
- struct ds *results = cbdata->results;
- struct ofp_match match;
uint64_t packet_count, byte_count;
size_t act_len = sizeof *rule->actions * rule->n_actions;
- /* Don't report on subrules. */
- if (rule->super != NULL) {
- return;
- }
-
- query_stats(cbdata->ofproto, rule, &packet_count, &byte_count);
- flow_to_match(&rule->cr.flow, rule->cr.wc.wildcards,
- cbdata->ofproto->tun_id_from_cookie, &match);
+ query_stats(ofproto, rule, &packet_count, &byte_count);
ds_put_format(results, "duration=%llds, ",
(time_msec() - rule->created) / 1000);
ds_put_format(results, "priority=%u, ", rule->cr.priority);
ds_put_format(results, "n_packets=%"PRIu64", ", packet_count);
ds_put_format(results, "n_bytes=%"PRIu64", ", byte_count);
- ofp_print_match(results, &match, true);
+ cls_rule_format(&rule->cr, results);
if (act_len > 0) {
ofp_print_actions(results, &rule->actions->header, act_len);
+ } else {
+ ds_put_cstr(results, "drop");
}
ds_put_cstr(results, "\n");
}
void
ofproto_get_all_flows(struct ofproto *p, struct ds *results)
{
- struct ofp_match match;
- struct cls_rule target;
- struct flow_stats_ds_cbdata cbdata;
-
- memset(&match, 0, sizeof match);
- match.wildcards = htonl(OVSFW_ALL);
-
- cbdata.ofproto = p;
- cbdata.results = results;
+ struct cls_cursor cursor;
+ struct rule *rule;
- cls_rule_from_match(&match, 0, false, 0, &target);
- classifier_for_each_match(&p->cls, &target, CLS_INC_ALL,
- flow_stats_ds_cb, &cbdata);
+ cls_cursor_init(&cursor, &p->cls, NULL);
+ CLS_CURSOR_FOR_EACH (rule, cr, &cursor) {
+ flow_stats_ds(p, rule, results);
+ }
}
-struct aggregate_stats_cbdata {
- struct ofproto *ofproto;
- uint16_t out_port;
- uint64_t packet_count;
- uint64_t byte_count;
- uint32_t n_flows;
-};
-
static void
-aggregate_stats_cb(struct cls_rule *rule_, void *cbdata_)
+query_aggregate_stats(struct ofproto *ofproto, struct cls_rule *target,
+ ovs_be16 out_port, uint8_t table_id,
+ struct ofp_aggregate_stats_reply *oasr)
{
- struct rule *rule = rule_from_cls_rule(rule_);
- struct aggregate_stats_cbdata *cbdata = cbdata_;
- uint64_t packet_count, byte_count;
+ uint64_t total_packets = 0;
+ uint64_t total_bytes = 0;
+ int n_flows = 0;
- if (rule_is_hidden(rule) || !rule_has_out_port(rule, cbdata->out_port)) {
- return;
- }
+ COVERAGE_INC(ofproto_agg_request);
+
+ if (is_valid_table(table_id)) {
+ struct cls_cursor cursor;
+ struct rule *rule;
- query_stats(cbdata->ofproto, rule, &packet_count, &byte_count);
+ cls_cursor_init(&cursor, &ofproto->cls, target);
+ CLS_CURSOR_FOR_EACH (rule, cr, &cursor) {
+ if (!rule_is_hidden(rule) && rule_has_out_port(rule, out_port)) {
+ uint64_t packet_count;
+ uint64_t byte_count;
- cbdata->packet_count += packet_count;
- cbdata->byte_count += byte_count;
- cbdata->n_flows++;
+ query_stats(ofproto, rule, &packet_count, &byte_count);
+
+ total_packets += packet_count;
+ total_bytes += byte_count;
+ n_flows++;
+ }
+ }
+ }
+
+ oasr->flow_count = htonl(n_flows);
+ oasr->packet_count = htonll(total_packets);
+ oasr->byte_count = htonll(total_bytes);
+ memset(oasr->pad, 0, sizeof oasr->pad);
}
static int
-handle_aggregate_stats_request(struct ofproto *p, struct ofconn *ofconn,
- const struct ofp_stats_request *osr,
- size_t arg_size)
+handle_aggregate_stats_request(struct ofconn *ofconn,
+ const struct ofp_header *oh)
{
- struct ofp_aggregate_stats_request *asr;
+ const struct ofp_aggregate_stats_request *request = ofputil_stats_body(oh);
struct ofp_aggregate_stats_reply *reply;
- struct aggregate_stats_cbdata cbdata;
struct cls_rule target;
struct ofpbuf *msg;
- if (arg_size != sizeof *asr) {
- return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_BAD_LEN);
- }
- asr = (struct ofp_aggregate_stats_request *) osr->body;
+ ofputil_cls_rule_from_match(&request->match, 0, NXFF_OPENFLOW10, 0,
+ &target);
- COVERAGE_INC(ofproto_agg_request);
- cbdata.ofproto = p;
- cbdata.out_port = asr->out_port;
- cbdata.packet_count = 0;
- cbdata.byte_count = 0;
- cbdata.n_flows = 0;
- cls_rule_from_match(&asr->match, 0, false, 0, &target);
- classifier_for_each_match(&p->cls, &target,
- table_id_to_include(asr->table_id),
- aggregate_stats_cb, &cbdata);
-
- msg = start_stats_reply(osr, sizeof *reply);
- reply = append_stats_reply(sizeof *reply, ofconn, &msg);
- reply->flow_count = htonl(cbdata.n_flows);
- reply->packet_count = htonll(cbdata.packet_count);
- reply->byte_count = htonll(cbdata.byte_count);
+ msg = start_ofp_stats_reply(oh, sizeof *reply);
+ reply = append_ofp_stats_reply(sizeof *reply, ofconn, &msg);
+ query_aggregate_stats(ofconn->ofproto, &target, request->out_port,
+ request->table_id, reply);
queue_tx(msg, ofconn, ofconn->reply_counter);
return 0;
}
-struct queue_stats_cbdata {
- struct ofconn *ofconn;
- struct ofport *ofport;
- struct ofpbuf *msg;
-};
-
-static void
-put_queue_stats(struct queue_stats_cbdata *cbdata, uint32_t queue_id,
+static int
+handle_nxst_aggregate(struct ofconn *ofconn, const struct ofp_header *oh)
+{
+ struct nx_aggregate_stats_request *request;
+ struct ofp_aggregate_stats_reply *reply;
+ struct cls_rule target;
+ struct ofpbuf b;
+ struct ofpbuf *buf;
+ int error;
+
+ ofpbuf_use_const(&b, oh, ntohs(oh->length));
+
+ /* Dissect the message. */
+ request = ofpbuf_pull(&b, sizeof *request);
+ error = nx_pull_match(&b, ntohs(request->match_len), 0, &target);
+ if (error) {
+ return error;
+ }
+ if (b.size) {
+ return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_BAD_LEN);
+ }
+
+ /* Reply. */
+ COVERAGE_INC(ofproto_flows_req);
+ buf = start_nxstats_reply(&request->nsm, sizeof *reply);
+ reply = ofpbuf_put_uninit(buf, sizeof *reply);
+ query_aggregate_stats(ofconn->ofproto, &target, request->out_port,
+ request->table_id, reply);
+ queue_tx(buf, ofconn, ofconn->reply_counter);
+
+ return 0;
+}
+
+struct queue_stats_cbdata {
+ struct ofconn *ofconn;
+ struct ofport *ofport;
+ struct ofpbuf *msg;
+};
+
+static void
+put_queue_stats(struct queue_stats_cbdata *cbdata, uint32_t queue_id,
const struct netdev_queue_stats *stats)
{
struct ofp_queue_stats *reply;
- reply = append_stats_reply(sizeof *reply, cbdata->ofconn, &cbdata->msg);
+ reply = append_ofp_stats_reply(sizeof *reply, cbdata->ofconn, &cbdata->msg);
reply->port_no = htons(cbdata->ofport->opp.port_no);
memset(reply->pad, 0, sizeof reply->pad);
reply->queue_id = htonl(queue_id);
}
static int
-handle_queue_stats_request(struct ofproto *ofproto, struct ofconn *ofconn,
- const struct ofp_stats_request *osr,
- size_t arg_size)
+handle_queue_stats_request(struct ofconn *ofconn, const struct ofp_header *oh)
{
- struct ofp_queue_stats_request *qsr;
+ struct ofproto *ofproto = ofconn->ofproto;
+ const struct ofp_queue_stats_request *qsr;
struct queue_stats_cbdata cbdata;
struct ofport *port;
unsigned int port_no;
uint32_t queue_id;
- if (arg_size != sizeof *qsr) {
+ qsr = ofputil_stats_body(oh);
+ if (!qsr) {
return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_BAD_LEN);
}
- qsr = (struct ofp_queue_stats_request *) osr->body;
COVERAGE_INC(ofproto_queue_req);
cbdata.ofconn = ofconn;
- cbdata.msg = start_stats_reply(osr, 128);
+ cbdata.msg = start_ofp_stats_reply(oh, 128);
port_no = ntohs(qsr->port_no);
queue_id = ntohl(qsr->queue_id);
return 0;
}
-static int
-handle_stats_request(struct ofproto *p, struct ofconn *ofconn,
- struct ofp_header *oh)
-{
- struct ofp_stats_request *osr;
- size_t arg_size;
- int error;
-
- error = check_ofp_message_array(oh, OFPT_STATS_REQUEST, sizeof *osr,
- 1, &arg_size);
- if (error) {
- return error;
- }
- osr = (struct ofp_stats_request *) oh;
-
- switch (ntohs(osr->type)) {
- case OFPST_DESC:
- return handle_desc_stats_request(p, ofconn, osr);
-
- case OFPST_FLOW:
- return handle_flow_stats_request(p, ofconn, osr, arg_size);
-
- case OFPST_AGGREGATE:
- return handle_aggregate_stats_request(p, ofconn, osr, arg_size);
-
- case OFPST_TABLE:
- return handle_table_stats_request(p, ofconn, osr);
-
- case OFPST_PORT:
- return handle_port_stats_request(p, ofconn, osr, arg_size);
-
- case OFPST_QUEUE:
- return handle_queue_stats_request(p, ofconn, osr, arg_size);
-
- case OFPST_VENDOR:
- return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_BAD_VENDOR);
-
- default:
- return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_BAD_STAT);
- }
-}
-
static long long int
msec_from_nsec(uint64_t sec, uint32_t nsec)
{
}
static void
-update_time(struct ofproto *ofproto, struct rule *rule,
- const struct odp_flow_stats *stats)
+facet_update_time(struct ofproto *ofproto, struct facet *facet,
+ const struct odp_flow_stats *stats)
{
long long int used = msec_from_nsec(stats->used_sec, stats->used_nsec);
- if (used > rule->used) {
- rule->used = used;
- if (rule->super && used > rule->super->used) {
- rule->super->used = used;
+ if (used > facet->used) {
+ facet->used = used;
+ if (used > facet->rule->used) {
+ facet->rule->used = used;
}
- netflow_flow_update_time(ofproto->netflow, &rule->nf_flow, used);
+ netflow_flow_update_time(ofproto->netflow, &facet->nf_flow, used);
}
}
+/* Folds the statistics from 'stats' into the counters in 'facet'.
+ *
+ * Because of the meaning of a facet's counters, it only makes sense to do this
+ * if 'stats' are not tracked in the datapath, that is, if 'stats' represents a
+ * packet that was sent by hand or if it represents statistics that have been
+ * cleared out of the datapath. */
static void
-update_stats(struct ofproto *ofproto, struct rule *rule,
- const struct odp_flow_stats *stats)
+facet_update_stats(struct ofproto *ofproto, struct facet *facet,
+ const struct odp_flow_stats *stats)
{
if (stats->n_packets) {
- update_time(ofproto, rule, stats);
- rule->packet_count += stats->n_packets;
- rule->byte_count += stats->n_bytes;
- netflow_flow_update_flags(&rule->nf_flow, stats->tcp_flags);
+ facet_update_time(ofproto, facet, stats);
+ facet->packet_count += stats->n_packets;
+ facet->byte_count += stats->n_bytes;
+ netflow_flow_update_flags(&facet->nf_flow, stats->tcp_flags);
}
}
* in which no matching flow already exists in the flow table.
*
* Adds the flow specified by 'ofm', which is followed by 'n_actions'
- * ofp_actions, to 'p''s flow table. Returns 0 on success or an OpenFlow error
- * code as encoded by ofp_mkerr() on failure.
+ * ofp_actions, to ofconn->ofproto's flow table. Returns 0 on success or an
+ * OpenFlow error code as encoded by ofp_mkerr() on failure.
*
* 'ofconn' is used to retrieve the packet buffer specified in ofm->buffer_id,
* if any. */
static int
-add_flow(struct ofproto *p, struct ofconn *ofconn,
- const struct ofp_flow_mod *ofm, size_t n_actions)
+add_flow(struct ofconn *ofconn, struct flow_mod *fm)
{
+ struct ofproto *p = ofconn->ofproto;
struct ofpbuf *packet;
struct rule *rule;
uint16_t in_port;
int error;
- if (ofm->flags & htons(OFPFF_CHECK_OVERLAP)) {
- flow_t flow;
- uint32_t wildcards;
-
- flow_from_match(&ofm->match, p->tun_id_from_cookie, ofm->cookie,
- &flow, &wildcards);
- if (classifier_rule_overlaps(&p->cls, &flow, wildcards,
- ntohs(ofm->priority))) {
- return ofp_mkerr(OFPET_FLOW_MOD_FAILED, OFPFMFC_OVERLAP);
- }
+ if (fm->flags & OFPFF_CHECK_OVERLAP
+ && classifier_rule_overlaps(&p->cls, &fm->cr)) {
+ return ofp_mkerr(OFPET_FLOW_MOD_FAILED, OFPFMFC_OVERLAP);
}
- rule = rule_create(p, NULL, (const union ofp_action *) ofm->actions,
- n_actions, ntohs(ofm->idle_timeout),
- ntohs(ofm->hard_timeout), ofm->cookie,
- ofm->flags & htons(OFPFF_SEND_FLOW_REM));
- cls_rule_from_match(&ofm->match, ntohs(ofm->priority),
- p->tun_id_from_cookie, ofm->cookie, &rule->cr);
-
error = 0;
- if (ofm->buffer_id != htonl(UINT32_MAX)) {
- error = pktbuf_retrieve(ofconn->pktbuf, ntohl(ofm->buffer_id),
+ if (fm->buffer_id != UINT32_MAX) {
+ error = pktbuf_retrieve(ofconn->pktbuf, fm->buffer_id,
&packet, &in_port);
} else {
packet = NULL;
in_port = UINT16_MAX;
}
- rule_insert(p, rule, packet, in_port);
+ rule = rule_create(&fm->cr, fm->actions, fm->n_actions,
+ fm->idle_timeout, fm->hard_timeout, fm->cookie,
+ fm->flags & OFPFF_SEND_FLOW_REM);
+ rule_insert(p, rule);
+ if (packet) {
+ rule_execute(p, rule, in_port, packet);
+ }
return error;
}
static struct rule *
-find_flow_strict(struct ofproto *p, const struct ofp_flow_mod *ofm)
+find_flow_strict(struct ofproto *p, const struct flow_mod *fm)
{
- uint32_t wildcards;
- flow_t flow;
-
- flow_from_match(&ofm->match, p->tun_id_from_cookie, ofm->cookie,
- &flow, &wildcards);
- return rule_from_cls_rule(classifier_find_rule_exactly(
- &p->cls, &flow, wildcards,
- ntohs(ofm->priority)));
+ return rule_from_cls_rule(classifier_find_rule_exactly(&p->cls, &fm->cr));
}
static int
-send_buffered_packet(struct ofproto *ofproto, struct ofconn *ofconn,
- struct rule *rule, const struct ofp_flow_mod *ofm)
+send_buffered_packet(struct ofconn *ofconn,
+ struct rule *rule, uint32_t buffer_id)
{
struct ofpbuf *packet;
uint16_t in_port;
- flow_t flow;
int error;
- if (ofm->buffer_id == htonl(UINT32_MAX)) {
+ if (buffer_id == UINT32_MAX) {
return 0;
}
- error = pktbuf_retrieve(ofconn->pktbuf, ntohl(ofm->buffer_id),
- &packet, &in_port);
+ error = pktbuf_retrieve(ofconn->pktbuf, buffer_id, &packet, &in_port);
if (error) {
return error;
}
- flow_extract(packet, 0, in_port, &flow);
- rule_execute(ofproto, rule, packet, &flow);
+ rule_execute(ofconn->ofproto, rule, in_port, packet);
return 0;
}
struct modify_flows_cbdata {
struct ofproto *ofproto;
- const struct ofp_flow_mod *ofm;
- size_t n_actions;
+ const struct flow_mod *fm;
struct rule *match;
};
-static int modify_flow(struct ofproto *, const struct ofp_flow_mod *,
- size_t n_actions, struct rule *);
-static void modify_flows_cb(struct cls_rule *, void *cbdata_);
+static int modify_flow(struct ofproto *, const struct flow_mod *,
+ struct rule *);
/* Implements OFPFC_MODIFY. Returns 0 on success or an OpenFlow error code as
* encoded by ofp_mkerr() on failure.
* 'ofconn' is used to retrieve the packet buffer specified in ofm->buffer_id,
* if any. */
static int
-modify_flows_loose(struct ofproto *p, struct ofconn *ofconn,
- const struct ofp_flow_mod *ofm, size_t n_actions)
+modify_flows_loose(struct ofconn *ofconn, struct flow_mod *fm)
{
- struct modify_flows_cbdata cbdata;
- struct cls_rule target;
+ struct ofproto *p = ofconn->ofproto;
+ struct rule *match = NULL;
+ struct cls_cursor cursor;
+ struct rule *rule;
+
+ cls_cursor_init(&cursor, &p->cls, &fm->cr);
+ CLS_CURSOR_FOR_EACH (rule, cr, &cursor) {
+ if (!rule_is_hidden(rule)) {
+ match = rule;
+ modify_flow(p, fm, rule);
+ }
+ }
- cbdata.ofproto = p;
- cbdata.ofm = ofm;
- cbdata.n_actions = n_actions;
- cbdata.match = NULL;
-
- cls_rule_from_match(&ofm->match, 0, p->tun_id_from_cookie, ofm->cookie,
- &target);
-
- classifier_for_each_match(&p->cls, &target, CLS_INC_ALL,
- modify_flows_cb, &cbdata);
- if (cbdata.match) {
- /* This credits the packet to whichever flow happened to happened to
- * match last. That's weird. Maybe we should do a lookup for the
- * flow that actually matches the packet? Who knows. */
- send_buffered_packet(p, ofconn, cbdata.match, ofm);
+ if (match) {
+ /* This credits the packet to whichever flow happened to match last.
+ * That's weird. Maybe we should do a lookup for the flow that
+ * actually matches the packet? Who knows. */
+ send_buffered_packet(ofconn, match, fm->buffer_id);
return 0;
} else {
- return add_flow(p, ofconn, ofm, n_actions);
+ return add_flow(ofconn, fm);
}
}
* 'ofconn' is used to retrieve the packet buffer specified in ofm->buffer_id,
* if any. */
static int
-modify_flow_strict(struct ofproto *p, struct ofconn *ofconn,
- struct ofp_flow_mod *ofm, size_t n_actions)
+modify_flow_strict(struct ofconn *ofconn, struct flow_mod *fm)
{
- struct rule *rule = find_flow_strict(p, ofm);
+ struct ofproto *p = ofconn->ofproto;
+ struct rule *rule = find_flow_strict(p, fm);
if (rule && !rule_is_hidden(rule)) {
- modify_flow(p, ofm, n_actions, rule);
- return send_buffered_packet(p, ofconn, rule, ofm);
+ modify_flow(p, fm, rule);
+ return send_buffered_packet(ofconn, rule, fm->buffer_id);
} else {
- return add_flow(p, ofconn, ofm, n_actions);
- }
-}
-
-/* Callback for modify_flows_loose(). */
-static void
-modify_flows_cb(struct cls_rule *rule_, void *cbdata_)
-{
- struct rule *rule = rule_from_cls_rule(rule_);
- struct modify_flows_cbdata *cbdata = cbdata_;
-
- if (!rule_is_hidden(rule)) {
- cbdata->match = rule;
- modify_flow(cbdata->ofproto, cbdata->ofm, cbdata->n_actions, rule);
+ return add_flow(ofconn, fm);
}
}
* the rule's actions to match those in 'ofm' (which is followed by 'n_actions'
* ofp_action[] structures). */
static int
-modify_flow(struct ofproto *p, const struct ofp_flow_mod *ofm,
- size_t n_actions, struct rule *rule)
+modify_flow(struct ofproto *p, const struct flow_mod *fm, struct rule *rule)
{
- size_t actions_len = n_actions * sizeof *rule->actions;
+ size_t actions_len = fm->n_actions * sizeof *rule->actions;
- rule->flow_cookie = ofm->cookie;
+ rule->flow_cookie = fm->cookie;
/* If the actions are the same, do nothing. */
- if (n_actions == rule->n_actions
- && (!n_actions || !memcmp(ofm->actions, rule->actions, actions_len)))
- {
+ if (fm->n_actions == rule->n_actions
+ && (!fm->n_actions
+ || !memcmp(fm->actions, rule->actions, actions_len))) {
return 0;
}
/* Replace actions. */
free(rule->actions);
- rule->actions = n_actions ? xmemdup(ofm->actions, actions_len) : NULL;
- rule->n_actions = n_actions;
+ rule->actions = fm->n_actions ? xmemdup(fm->actions, actions_len) : NULL;
+ rule->n_actions = fm->n_actions;
- /* Make sure that the datapath gets updated properly. */
- if (rule->cr.wc.wildcards) {
- COVERAGE_INC(ofproto_mod_wc_flow);
- p->need_revalidate = true;
- } else {
- rule_update_actions(p, rule);
- }
+ p->need_revalidate = true;
return 0;
}
\f
/* OFPFC_DELETE implementation. */
-struct delete_flows_cbdata {
- struct ofproto *ofproto;
- uint16_t out_port;
-};
-
-static void delete_flows_cb(struct cls_rule *, void *cbdata_);
-static void delete_flow(struct ofproto *, struct rule *, uint16_t out_port);
+static void delete_flow(struct ofproto *, struct rule *, ovs_be16 out_port);
/* Implements OFPFC_DELETE. */
static void
-delete_flows_loose(struct ofproto *p, const struct ofp_flow_mod *ofm)
+delete_flows_loose(struct ofproto *p, const struct flow_mod *fm)
{
- struct delete_flows_cbdata cbdata;
- struct cls_rule target;
-
- cbdata.ofproto = p;
- cbdata.out_port = ofm->out_port;
-
- cls_rule_from_match(&ofm->match, 0, p->tun_id_from_cookie, ofm->cookie,
- &target);
+ struct rule *rule, *next_rule;
+ struct cls_cursor cursor;
- classifier_for_each_match(&p->cls, &target, CLS_INC_ALL,
- delete_flows_cb, &cbdata);
+ cls_cursor_init(&cursor, &p->cls, &fm->cr);
+ CLS_CURSOR_FOR_EACH_SAFE (rule, next_rule, cr, &cursor) {
+ delete_flow(p, rule, htons(fm->out_port));
+ }
}
/* Implements OFPFC_DELETE_STRICT. */
static void
-delete_flow_strict(struct ofproto *p, struct ofp_flow_mod *ofm)
+delete_flow_strict(struct ofproto *p, struct flow_mod *fm)
{
- struct rule *rule = find_flow_strict(p, ofm);
+ struct rule *rule = find_flow_strict(p, fm);
if (rule) {
- delete_flow(p, rule, ofm->out_port);
+ delete_flow(p, rule, htons(fm->out_port));
}
}
-/* Callback for delete_flows_loose(). */
-static void
-delete_flows_cb(struct cls_rule *rule_, void *cbdata_)
-{
- struct rule *rule = rule_from_cls_rule(rule_);
- struct delete_flows_cbdata *cbdata = cbdata_;
-
- delete_flow(cbdata->ofproto, rule, cbdata->out_port);
-}
-
/* Implements core of OFPFC_DELETE and OFPFC_DELETE_STRICT where 'rule' has
* been identified as a flow to delete from 'p''s flow table, by deleting the
* flow and sending out a OFPT_FLOW_REMOVED message to any interested
* 'out_port' is htons(OFPP_NONE) or if 'rule' actually outputs to the
* specified 'out_port'. */
static void
-delete_flow(struct ofproto *p, struct rule *rule, uint16_t out_port)
+delete_flow(struct ofproto *p, struct rule *rule, ovs_be16 out_port)
{
if (rule_is_hidden(rule)) {
return;
return;
}
- send_flow_removed(p, rule, time_msec(), OFPRR_DELETE);
+ rule_send_removed(p, rule, OFPRR_DELETE);
rule_remove(p, rule);
}
\f
static int
-handle_flow_mod(struct ofproto *p, struct ofconn *ofconn,
- struct ofp_flow_mod *ofm)
+handle_flow_mod(struct ofconn *ofconn, const struct ofp_header *oh)
{
- struct ofp_match orig_match;
- size_t n_actions;
+ struct ofproto *p = ofconn->ofproto;
+ struct flow_mod fm;
int error;
- error = reject_slave_controller(ofconn, &ofm->header);
+ error = reject_slave_controller(ofconn, "flow_mod");
if (error) {
return error;
}
- error = check_ofp_message_array(&ofm->header, OFPT_FLOW_MOD, sizeof *ofm,
- sizeof *ofm->actions, &n_actions);
+
+ error = ofputil_decode_flow_mod(&fm, oh, ofconn->flow_format);
if (error) {
return error;
}
- /* We do not support the emergency flow cache. It will hopefully
- * get dropped from OpenFlow in the near future. */
- if (ofm->flags & htons(OFPFF_EMERG)) {
+ /* We do not support the emergency flow cache. It will hopefully get
+ * dropped from OpenFlow in the near future. */
+ if (fm.flags & OFPFF_EMERG) {
/* There isn't a good fit for an error code, so just state that the
* flow table is full. */
return ofp_mkerr(OFPET_FLOW_MOD_FAILED, OFPFMFC_ALL_TABLES_FULL);
}
- /* Normalize ofp->match. If normalization actually changes anything, then
- * log the differences. */
- ofm->match.pad1[0] = ofm->match.pad2[0] = 0;
- orig_match = ofm->match;
- normalize_match(&ofm->match);
- if (memcmp(&ofm->match, &orig_match, sizeof orig_match)) {
- static struct vlog_rate_limit normal_rl = VLOG_RATE_LIMIT_INIT(1, 1);
- if (!VLOG_DROP_INFO(&normal_rl)) {
- char *old = ofp_match_to_literal_string(&orig_match);
- char *new = ofp_match_to_literal_string(&ofm->match);
- VLOG_INFO("%s: normalization changed ofp_match, details:",
- rconn_get_name(ofconn->rconn));
- VLOG_INFO(" pre: %s", old);
- VLOG_INFO("post: %s", new);
- free(old);
- free(new);
- }
- }
-
- if (!ofm->match.wildcards) {
- ofm->priority = htons(UINT16_MAX);
- }
-
- error = validate_actions((const union ofp_action *) ofm->actions,
- n_actions, p->max_ports);
+ error = validate_actions(fm.actions, fm.n_actions,
+ &fm.cr.flow, p->max_ports);
if (error) {
return error;
}
- switch (ntohs(ofm->command)) {
+ switch (fm.command) {
case OFPFC_ADD:
- return add_flow(p, ofconn, ofm, n_actions);
+ return add_flow(ofconn, &fm);
case OFPFC_MODIFY:
- return modify_flows_loose(p, ofconn, ofm, n_actions);
+ return modify_flows_loose(ofconn, &fm);
case OFPFC_MODIFY_STRICT:
- return modify_flow_strict(p, ofconn, ofm, n_actions);
+ return modify_flow_strict(ofconn, &fm);
case OFPFC_DELETE:
- delete_flows_loose(p, ofm);
+ delete_flows_loose(p, &fm);
return 0;
case OFPFC_DELETE_STRICT:
- delete_flow_strict(p, ofm);
+ delete_flow_strict(p, &fm);
return 0;
default:
}
static int
-handle_tun_id_from_cookie(struct ofproto *p, struct nxt_tun_id_cookie *msg)
+handle_tun_id_from_cookie(struct ofconn *ofconn, const struct ofp_header *oh)
{
- int error;
-
- error = check_ofp_message(&msg->header, OFPT_VENDOR, sizeof *msg);
- if (error) {
- return error;
- }
+ const struct nxt_tun_id_cookie *msg
+ = (const struct nxt_tun_id_cookie *) oh;
- p->tun_id_from_cookie = !!msg->set;
+ ofconn->flow_format = msg->set ? NXFF_TUN_ID_FROM_COOKIE : NXFF_OPENFLOW10;
return 0;
}
static int
-handle_role_request(struct ofproto *ofproto,
- struct ofconn *ofconn, struct nicira_header *msg)
+handle_role_request(struct ofconn *ofconn, const struct ofp_header *oh)
{
- struct nx_role_request *nrr;
+ struct nx_role_request *nrr = (struct nx_role_request *) oh;
struct nx_role_request *reply;
struct ofpbuf *buf;
uint32_t role;
- if (ntohs(msg->header.length) != sizeof *nrr) {
- VLOG_WARN_RL(&rl, "received role request of length %u (expected %zu)",
- ntohs(msg->header.length), sizeof *nrr);
- return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_BAD_LEN);
- }
- nrr = (struct nx_role_request *) msg;
-
if (ofconn->type != OFCONN_PRIMARY) {
VLOG_WARN_RL(&rl, "ignoring role request on non-controller "
"connection");
if (role == NX_ROLE_MASTER) {
struct ofconn *other;
- HMAP_FOR_EACH (other, hmap_node, &ofproto->controllers) {
+ HMAP_FOR_EACH (other, hmap_node, &ofconn->ofproto->controllers) {
if (other->role == NX_ROLE_MASTER) {
other->role = NX_ROLE_SLAVE;
}
}
ofconn->role = role;
- reply = make_openflow_xid(sizeof *reply, OFPT_VENDOR, msg->header.xid,
- &buf);
- reply->nxh.vendor = htonl(NX_VENDOR_ID);
- reply->nxh.subtype = htonl(NXT_ROLE_REPLY);
+ reply = make_nxmsg_xid(sizeof *reply, NXT_ROLE_REPLY, oh->xid, &buf);
reply->role = htonl(role);
queue_tx(buf, ofconn, ofconn->reply_counter);
}
static int
-handle_vendor(struct ofproto *p, struct ofconn *ofconn, void *msg)
+handle_nxt_set_flow_format(struct ofconn *ofconn, const struct ofp_header *oh)
{
- struct ofp_vendor_header *ovh = msg;
- struct nicira_header *nh;
-
- if (ntohs(ovh->header.length) < sizeof(struct ofp_vendor_header)) {
- VLOG_WARN_RL(&rl, "received vendor message of length %u "
- "(expected at least %zu)",
- ntohs(ovh->header.length), sizeof(struct ofp_vendor_header));
- return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_BAD_LEN);
- }
- if (ovh->vendor != htonl(NX_VENDOR_ID)) {
- return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_BAD_VENDOR);
- }
- if (ntohs(ovh->header.length) < sizeof(struct nicira_header)) {
- VLOG_WARN_RL(&rl, "received Nicira vendor message of length %u "
- "(expected at least %zu)",
- ntohs(ovh->header.length), sizeof(struct nicira_header));
- return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_BAD_LEN);
- }
+ const struct nxt_set_flow_format *msg
+ = (const struct nxt_set_flow_format *) oh;
+ uint32_t format;
- nh = msg;
- switch (ntohl(nh->subtype)) {
- case NXT_STATUS_REQUEST:
- return switch_status_handle_request(p->switch_status, ofconn->rconn,
- msg);
-
- case NXT_TUN_ID_FROM_COOKIE:
- return handle_tun_id_from_cookie(p, msg);
-
- case NXT_ROLE_REQUEST:
- return handle_role_request(p, ofconn, msg);
+ format = ntohl(msg->format);
+ if (format == NXFF_OPENFLOW10
+ || format == NXFF_TUN_ID_FROM_COOKIE
+ || format == NXFF_NXM) {
+ ofconn->flow_format = format;
+ return 0;
+ } else {
+ return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_EPERM);
}
-
- return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_BAD_SUBTYPE);
}
static int
-handle_barrier_request(struct ofconn *ofconn, struct ofp_header *oh)
+handle_barrier_request(struct ofconn *ofconn, const struct ofp_header *oh)
{
struct ofp_header *ob;
struct ofpbuf *buf;
return 0;
}
-static void
-handle_openflow(struct ofconn *ofconn, struct ofproto *p,
- struct ofpbuf *ofp_msg)
+static int
+handle_openflow__(struct ofconn *ofconn, const struct ofpbuf *msg)
{
- struct ofp_header *oh = ofp_msg->data;
+ const struct ofp_header *oh = msg->data;
+ const struct ofputil_msg_type *type;
int error;
- COVERAGE_INC(ofproto_recv_openflow);
- switch (oh->type) {
- case OFPT_ECHO_REQUEST:
- error = handle_echo_request(ofconn, oh);
- break;
-
- case OFPT_ECHO_REPLY:
- error = 0;
- break;
+ error = ofputil_decode_msg_type(oh, &type);
+ if (error) {
+ return error;
+ }
- case OFPT_FEATURES_REQUEST:
- error = handle_features_request(p, ofconn, oh);
- break;
+ switch (ofputil_msg_type_code(type)) {
+ /* OpenFlow requests. */
+ case OFPUTIL_OFPT_ECHO_REQUEST:
+ return handle_echo_request(ofconn, oh);
- case OFPT_GET_CONFIG_REQUEST:
- error = handle_get_config_request(p, ofconn, oh);
- break;
+ case OFPUTIL_OFPT_FEATURES_REQUEST:
+ return handle_features_request(ofconn, oh);
- case OFPT_SET_CONFIG:
- error = handle_set_config(p, ofconn, ofp_msg->data);
- break;
+ case OFPUTIL_OFPT_GET_CONFIG_REQUEST:
+ return handle_get_config_request(ofconn, oh);
- case OFPT_PACKET_OUT:
- error = handle_packet_out(p, ofconn, ofp_msg->data);
- break;
+ case OFPUTIL_OFPT_SET_CONFIG:
+ return handle_set_config(ofconn, msg->data);
- case OFPT_PORT_MOD:
- error = handle_port_mod(p, ofconn, oh);
- break;
+ case OFPUTIL_OFPT_PACKET_OUT:
+ return handle_packet_out(ofconn, oh);
- case OFPT_FLOW_MOD:
- error = handle_flow_mod(p, ofconn, ofp_msg->data);
- break;
+ case OFPUTIL_OFPT_PORT_MOD:
+ return handle_port_mod(ofconn, oh);
- case OFPT_STATS_REQUEST:
- error = handle_stats_request(p, ofconn, oh);
- break;
+ case OFPUTIL_OFPT_FLOW_MOD:
+ return handle_flow_mod(ofconn, oh);
- case OFPT_VENDOR:
- error = handle_vendor(p, ofconn, ofp_msg->data);
- break;
+ case OFPUTIL_OFPT_BARRIER_REQUEST:
+ return handle_barrier_request(ofconn, oh);
- case OFPT_BARRIER_REQUEST:
- error = handle_barrier_request(ofconn, oh);
- break;
+ /* OpenFlow replies. */
+ case OFPUTIL_OFPT_ECHO_REPLY:
+ return 0;
+ /* Nicira extension requests. */
+ case OFPUTIL_NXT_STATUS_REQUEST:
+ return switch_status_handle_request(
+ ofconn->ofproto->switch_status, ofconn->rconn, oh);
+
+ case OFPUTIL_NXT_TUN_ID_FROM_COOKIE:
+ return handle_tun_id_from_cookie(ofconn, oh);
+
+ case OFPUTIL_NXT_ROLE_REQUEST:
+ return handle_role_request(ofconn, oh);
+
+ case OFPUTIL_NXT_SET_FLOW_FORMAT:
+ return handle_nxt_set_flow_format(ofconn, oh);
+
+ case OFPUTIL_NXT_FLOW_MOD:
+ return handle_flow_mod(ofconn, oh);
+
+ /* OpenFlow statistics requests. */
+ case OFPUTIL_OFPST_DESC_REQUEST:
+ return handle_desc_stats_request(ofconn, oh);
+
+ case OFPUTIL_OFPST_FLOW_REQUEST:
+ return handle_flow_stats_request(ofconn, oh);
+
+ case OFPUTIL_OFPST_AGGREGATE_REQUEST:
+ return handle_aggregate_stats_request(ofconn, oh);
+
+ case OFPUTIL_OFPST_TABLE_REQUEST:
+ return handle_table_stats_request(ofconn, oh);
+
+ case OFPUTIL_OFPST_PORT_REQUEST:
+ return handle_port_stats_request(ofconn, oh);
+
+ case OFPUTIL_OFPST_QUEUE_REQUEST:
+ return handle_queue_stats_request(ofconn, oh);
+
+ /* Nicira extension statistics requests. */
+ case OFPUTIL_NXST_FLOW_REQUEST:
+ return handle_nxst_flow(ofconn, oh);
+
+ case OFPUTIL_NXST_AGGREGATE_REQUEST:
+ return handle_nxst_aggregate(ofconn, oh);
+
+ case OFPUTIL_INVALID:
+ case OFPUTIL_OFPT_HELLO:
+ case OFPUTIL_OFPT_ERROR:
+ case OFPUTIL_OFPT_FEATURES_REPLY:
+ case OFPUTIL_OFPT_GET_CONFIG_REPLY:
+ case OFPUTIL_OFPT_PACKET_IN:
+ case OFPUTIL_OFPT_FLOW_REMOVED:
+ case OFPUTIL_OFPT_PORT_STATUS:
+ case OFPUTIL_OFPT_BARRIER_REPLY:
+ case OFPUTIL_OFPT_QUEUE_GET_CONFIG_REQUEST:
+ case OFPUTIL_OFPT_QUEUE_GET_CONFIG_REPLY:
+ case OFPUTIL_OFPST_DESC_REPLY:
+ case OFPUTIL_OFPST_FLOW_REPLY:
+ case OFPUTIL_OFPST_QUEUE_REPLY:
+ case OFPUTIL_OFPST_PORT_REPLY:
+ case OFPUTIL_OFPST_TABLE_REPLY:
+ case OFPUTIL_OFPST_AGGREGATE_REPLY:
+ case OFPUTIL_NXT_STATUS_REPLY:
+ case OFPUTIL_NXT_ROLE_REPLY:
+ case OFPUTIL_NXT_FLOW_REMOVED:
+ case OFPUTIL_NXST_FLOW_REPLY:
+ case OFPUTIL_NXST_AGGREGATE_REPLY:
default:
if (VLOG_IS_WARN_ENABLED()) {
char *s = ofp_to_string(oh, ntohs(oh->length), 2);
VLOG_DBG_RL(&rl, "OpenFlow message ignored: %s", s);
free(s);
}
- error = ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_BAD_TYPE);
- break;
+ if (oh->type == OFPT_STATS_REQUEST || oh->type == OFPT_STATS_REPLY) {
+ return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_BAD_STAT);
+ } else {
+ return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_BAD_TYPE);
+ }
}
+}
+static void
+handle_openflow(struct ofconn *ofconn, struct ofpbuf *ofp_msg)
+{
+ int error = handle_openflow__(ofconn, ofp_msg);
if (error) {
send_error_oh(ofconn, ofp_msg->data, error);
}
+ COVERAGE_INC(ofproto_recv_openflow);
}
\f
static void
handle_odp_miss_msg(struct ofproto *p, struct ofpbuf *packet)
{
struct odp_msg *msg = packet->data;
- struct rule *rule;
struct ofpbuf payload;
- flow_t flow;
+ struct facet *facet;
+ struct flow flow;
- payload.data = msg + 1;
- payload.size = msg->length - sizeof *msg;
+ ofpbuf_use_const(&payload, msg + 1, msg->length - sizeof *msg);
flow_extract(&payload, msg->arg, msg->port, &flow);
+ packet->l2 = payload.l2;
+ packet->l3 = payload.l3;
+ packet->l4 = payload.l4;
+ packet->l7 = payload.l7;
+
/* Check with in-band control to see if this packet should be sent
* to the local port regardless of the flow table. */
if (in_band_msg_in_hook(p->in_band, &flow, &payload)) {
- union odp_action action;
-
- memset(&action, 0, sizeof(action));
- action.output.type = ODPAT_OUTPUT;
- action.output.port = ODPP_LOCAL;
- dpif_execute(p->dpif, flow.in_port, &action, 1, &payload);
- }
-
- rule = lookup_valid_rule(p, &flow);
- if (!rule) {
- /* Don't send a packet-in if OFPPC_NO_PACKET_IN asserted. */
- struct ofport *port = get_port(p, msg->port);
- if (port) {
- if (port->opp.config & OFPPC_NO_PACKET_IN) {
- COVERAGE_INC(ofproto_no_packet_in);
- /* XXX install 'drop' flow entry */
- ofpbuf_delete(packet);
- return;
+ struct ofpbuf odp_actions;
+
+ ofpbuf_init(&odp_actions, 32);
+ nl_msg_put_u32(&odp_actions, ODPAT_OUTPUT, ODPP_LOCAL);
+ dpif_execute(p->dpif, odp_actions.data, odp_actions.size, &payload);
+ ofpbuf_uninit(&odp_actions);
+ }
+
+ facet = facet_lookup_valid(p, &flow);
+ if (!facet) {
+ struct rule *rule = rule_lookup(p, &flow);
+ if (!rule) {
+ /* Don't send a packet-in if OFPPC_NO_PACKET_IN asserted. */
+ struct ofport *port = get_port(p, msg->port);
+ if (port) {
+ if (port->opp.config & OFPPC_NO_PACKET_IN) {
+ COVERAGE_INC(ofproto_no_packet_in);
+ /* XXX install 'drop' flow entry */
+ ofpbuf_delete(packet);
+ return;
+ }
+ } else {
+ VLOG_WARN_RL(&rl, "packet-in on unknown port %"PRIu16,
+ msg->port);
}
- } else {
- VLOG_WARN_RL(&rl, "packet-in on unknown port %"PRIu16, msg->port);
- }
- COVERAGE_INC(ofproto_packet_in);
- send_packet_in(p, packet);
- return;
- }
-
- if (rule->cr.wc.wildcards) {
- rule = rule_create_subrule(p, rule, &flow);
- rule_make_actions(p, rule, packet);
- } else {
- if (!rule->may_install) {
- /* The rule is not installable, that is, we need to process every
- * packet, so process the current packet and set its actions into
- * 'subrule'. */
- rule_make_actions(p, rule, packet);
- } else {
- /* XXX revalidate rule if it needs it */
+ COVERAGE_INC(ofproto_packet_in);
+ send_packet_in(p, packet);
+ return;
}
+
+ facet = facet_create(p, rule, &flow, packet);
+ } else if (!facet->may_install) {
+ /* The facet is not installable, that is, we need to process every
+ * packet, so process the current packet's actions into 'facet'. */
+ facet_make_actions(p, facet, packet);
}
- if (rule->super && rule->super->cr.priority == FAIL_OPEN_PRIORITY) {
+ if (facet->rule->cr.priority == FAIL_OPEN_PRIORITY) {
/*
* Extra-special case for fail-open mode.
*
}
ofpbuf_pull(packet, sizeof *msg);
- rule_execute(p, rule, packet, &flow);
- rule_reinstall(p, rule);
+ facet_execute(p, facet, packet);
+ facet_install(p, facet, false);
}
static void
\f
/* Flow expiration. */
-struct expire_cbdata {
- struct ofproto *ofproto;
-};
-
+static int ofproto_dp_max_idle(const struct ofproto *);
static void ofproto_update_used(struct ofproto *);
-static void rule_expire(struct cls_rule *, void *cbdata);
+static void rule_expire(struct ofproto *, struct rule *);
+static void ofproto_expire_facets(struct ofproto *, int dp_max_idle);
/* This function is called periodically by ofproto_run(). Its job is to
* collect updates for the flows that have been installed into the datapath,
* most importantly when they last were used, and then use that information to
- * expire flows that have not been used recently. */
-static void
+ * expire flows that have not been used recently.
+ *
+ * Returns the number of milliseconds after which it should be called again. */
+static int
ofproto_expire(struct ofproto *ofproto)
{
- struct expire_cbdata cbdata;
+ struct rule *rule, *next_rule;
+ struct cls_cursor cursor;
+ int dp_max_idle;
/* Update 'used' for each flow in the datapath. */
ofproto_update_used(ofproto);
- /* Expire idle flows. */
- cbdata.ofproto = ofproto;
- classifier_for_each(&ofproto->cls, CLS_INC_ALL, rule_expire, &cbdata);
+ /* Expire facets that have been idle too long. */
+ dp_max_idle = ofproto_dp_max_idle(ofproto);
+ ofproto_expire_facets(ofproto, dp_max_idle);
+
+ /* Expire OpenFlow flows whose idle_timeout or hard_timeout has passed. */
+ cls_cursor_init(&cursor, &ofproto->cls, NULL);
+ CLS_CURSOR_FOR_EACH_SAFE (rule, next_rule, cr, &cursor) {
+ rule_expire(ofproto, rule);
+ }
/* Let the hook know that we're at a stable point: all outstanding data
* in existing flows has been accounted to the account_cb. Thus, the
if (ofproto->ofhooks->account_checkpoint_cb) {
ofproto->ofhooks->account_checkpoint_cb(ofproto->aux);
}
+
+ return MIN(dp_max_idle, 1000);
}
-/* Update 'used' member of each flow currently installed into the datapath. */
+/* Update 'used' member of installed facets. */
static void
ofproto_update_used(struct ofproto *p)
{
for (i = 0; i < n_flows; i++) {
struct odp_flow *f = &flows[i];
- struct rule *rule;
+ struct facet *facet;
+ struct flow flow;
- rule = rule_from_cls_rule(
- classifier_find_rule_exactly(&p->cls, &f->key, 0, UINT16_MAX));
+ odp_flow_key_to_flow(&f->key, &flow);
+ facet = facet_find(p, &flow);
- if (rule && rule->installed) {
- update_time(p, rule, &f->stats);
- rule_account(p, rule, f->stats.n_bytes);
+ if (facet && facet->installed) {
+ facet_update_time(p, facet, &f->stats);
+ facet_account(p, facet, f->stats.n_bytes);
} else {
/* There's a flow in the datapath that we know nothing about.
* Delete it. */
free(flows);
}
+/* Calculates and returns the number of milliseconds of idle time after which
+ * facets should expire from the datapath and we should fold their statistics
+ * into their parent rules in userspace. */
+static int
+ofproto_dp_max_idle(const struct ofproto *ofproto)
+{
+ /*
+ * Idle time histogram.
+ *
+ * Most of the time a switch has a relatively small number of facets. When
+ * this is the case we might as well keep statistics for all of them in
+ * userspace and to cache them in the kernel datapath for performance as
+ * well.
+ *
+ * As the number of facets increases, the memory required to maintain
+ * statistics about them in userspace and in the kernel becomes
+ * significant. However, with a large number of facets it is likely that
+ * only a few of them are "heavy hitters" that consume a large amount of
+ * bandwidth. At this point, only heavy hitters are worth caching in the
+ * kernel and maintaining in userspaces; other facets we can discard.
+ *
+ * The technique used to compute the idle time is to build a histogram with
+ * N_BUCKETS buckets whose width is BUCKET_WIDTH msecs each. Each facet
+ * that is installed in the kernel gets dropped in the appropriate bucket.
+ * After the histogram has been built, we compute the cutoff so that only
+ * the most-recently-used 1% of facets (but at least 1000 flows) are kept
+ * cached. At least the most-recently-used bucket of facets is kept, so
+ * actually an arbitrary number of facets can be kept in any given
+ * expiration run (though the next run will delete most of those unless
+ * they receive additional data).
+ *
+ * This requires a second pass through the facets, in addition to the pass
+ * made by ofproto_update_used(), because the former function never looks
+ * at uninstallable facets.
+ */
+ enum { BUCKET_WIDTH = ROUND_UP(100, TIME_UPDATE_INTERVAL) };
+ enum { N_BUCKETS = 5000 / BUCKET_WIDTH };
+ int buckets[N_BUCKETS] = { 0 };
+ struct facet *facet;
+ int total, bucket;
+ long long int now;
+ int i;
+
+ total = hmap_count(&ofproto->facets);
+ if (total <= 1000) {
+ return N_BUCKETS * BUCKET_WIDTH;
+ }
+
+ /* Build histogram. */
+ now = time_msec();
+ HMAP_FOR_EACH (facet, hmap_node, &ofproto->facets) {
+ long long int idle = now - facet->used;
+ int bucket = (idle <= 0 ? 0
+ : idle >= BUCKET_WIDTH * N_BUCKETS ? N_BUCKETS - 1
+ : (unsigned int) idle / BUCKET_WIDTH);
+ buckets[bucket]++;
+ }
+
+ /* Find the first bucket whose flows should be expired. */
+ for (bucket = 0; bucket < N_BUCKETS; bucket++) {
+ if (buckets[bucket]) {
+ int subtotal = 0;
+ do {
+ subtotal += buckets[bucket++];
+ } while (bucket < N_BUCKETS && subtotal < MAX(1000, total / 100));
+ break;
+ }
+ }
+
+ if (VLOG_IS_DBG_ENABLED()) {
+ struct ds s;
+
+ ds_init(&s);
+ ds_put_cstr(&s, "keep");
+ for (i = 0; i < N_BUCKETS; i++) {
+ if (i == bucket) {
+ ds_put_cstr(&s, ", drop");
+ }
+ if (buckets[i]) {
+ ds_put_format(&s, " %d:%d", i * BUCKET_WIDTH, buckets[i]);
+ }
+ }
+ VLOG_INFO("%s: %s (msec:count)",
+ dpif_name(ofproto->dpif), ds_cstr(&s));
+ ds_destroy(&s);
+ }
+
+ return bucket * BUCKET_WIDTH;
+}
+
static void
-rule_active_timeout(struct ofproto *ofproto, struct rule *rule)
+facet_active_timeout(struct ofproto *ofproto, struct facet *facet)
{
- if (ofproto->netflow && !is_controller_rule(rule) &&
- netflow_active_timeout_expired(ofproto->netflow, &rule->nf_flow)) {
+ if (ofproto->netflow && !facet_is_controller_flow(facet) &&
+ netflow_active_timeout_expired(ofproto->netflow, &facet->nf_flow)) {
struct ofexpired expired;
struct odp_flow odp_flow;
* updated TCP flags and (2) the dpif_flow_list_all() in
* ofproto_update_used() zeroed TCP flags. */
memset(&odp_flow, 0, sizeof odp_flow);
- if (rule->installed) {
- odp_flow.key = rule->cr.flow;
+ if (facet->installed) {
+ odp_flow_key_from_flow(&odp_flow.key, &facet->flow);
odp_flow.flags = ODPFF_ZERO_TCP_FLAGS;
dpif_flow_get(ofproto->dpif, &odp_flow);
if (odp_flow.stats.n_packets) {
- update_time(ofproto, rule, &odp_flow.stats);
- netflow_flow_update_flags(&rule->nf_flow,
+ facet_update_time(ofproto, facet, &odp_flow.stats);
+ netflow_flow_update_flags(&facet->nf_flow,
odp_flow.stats.tcp_flags);
}
}
- expired.flow = rule->cr.flow;
- expired.packet_count = rule->packet_count +
+ expired.flow = facet->flow;
+ expired.packet_count = facet->packet_count +
odp_flow.stats.n_packets;
- expired.byte_count = rule->byte_count + odp_flow.stats.n_bytes;
- expired.used = rule->used;
-
- netflow_expire(ofproto->netflow, &rule->nf_flow, &expired);
+ expired.byte_count = facet->byte_count + odp_flow.stats.n_bytes;
+ expired.used = facet->used;
- /* Schedule us to send the accumulated records once we have
- * collected all of them. */
- poll_immediate_wake();
+ netflow_expire(ofproto->netflow, &facet->nf_flow, &expired);
}
}
-/* If 'cls_rule' is an OpenFlow rule, that has expired according to OpenFlow
- * rules, then delete it entirely.
- *
- * If 'cls_rule' is a subrule, that has not been used recently, remove it from
- * the datapath and fold its statistics back into its super-rule.
- *
- * (This is a callback function for classifier_for_each().) */
static void
-rule_expire(struct cls_rule *cls_rule, void *cbdata_)
-{
- struct expire_cbdata *cbdata = cbdata_;
- struct ofproto *ofproto = cbdata->ofproto;
- struct rule *rule = rule_from_cls_rule(cls_rule);
- long long int hard_expire, idle_expire, expire, now;
-
- /* Calculate OpenFlow expiration times for 'rule'. */
- hard_expire = (rule->hard_timeout
- ? rule->created + rule->hard_timeout * 1000
- : LLONG_MAX);
- idle_expire = (rule->idle_timeout
- && (rule->super || list_is_empty(&rule->list))
- ? rule->used + rule->idle_timeout * 1000
- : LLONG_MAX);
- expire = MIN(hard_expire, idle_expire);
-
- now = time_msec();
- if (now < expire) {
- /* 'rule' has not expired according to OpenFlow rules. */
- if (rule->installed && now >= rule->used + 5000) {
- /* This rule is idle, so uninstall it from the datapath. */
- if (rule->super) {
- rule_remove(ofproto, rule);
- } else {
- rule_uninstall(ofproto, rule);
- }
- } else if (!rule->cr.wc.wildcards) {
- /* Send NetFlow active timeout if appropriate. */
- rule_active_timeout(cbdata->ofproto, rule);
- }
- } else {
- /* 'rule' has expired according to OpenFlow rules. */
- COVERAGE_INC(ofproto_expired);
-
- /* Update stats. (This is a no-op if the rule expired due to an idle
- * timeout, because that only happens when the rule has no subrules
- * left.) */
- if (rule->cr.wc.wildcards) {
- struct rule *subrule, *next;
- LIST_FOR_EACH_SAFE (subrule, next, list, &rule->list) {
- rule_remove(cbdata->ofproto, subrule);
- }
- } else {
- rule_uninstall(cbdata->ofproto, rule);
- }
+ofproto_expire_facets(struct ofproto *ofproto, int dp_max_idle)
+{
+ long long int cutoff = time_msec() - dp_max_idle;
+ struct facet *facet, *next_facet;
- /* Get rid of the rule. */
- if (!rule_is_hidden(rule)) {
- send_flow_removed(cbdata->ofproto, rule, now,
- (now >= hard_expire
- ? OFPRR_HARD_TIMEOUT : OFPRR_IDLE_TIMEOUT));
+ HMAP_FOR_EACH_SAFE (facet, next_facet, hmap_node, &ofproto->facets) {
+ facet_active_timeout(ofproto, facet);
+ if (facet->used < cutoff) {
+ facet_remove(ofproto, facet);
}
- rule_remove(cbdata->ofproto, rule);
}
}
-\f
+
+/* If 'rule' is an OpenFlow rule, that has expired according to OpenFlow rules,
+ * then delete it entirely. */
static void
-revalidate_cb(struct cls_rule *sub_, void *cbdata_)
+rule_expire(struct ofproto *ofproto, struct rule *rule)
{
- struct rule *sub = rule_from_cls_rule(sub_);
- struct revalidate_cbdata *cbdata = cbdata_;
+ struct facet *facet, *next_facet;
+ long long int now;
+ uint8_t reason;
- if (cbdata->revalidate_all
- || (cbdata->revalidate_subrules && sub->super)
- || (tag_set_intersects(&cbdata->revalidate_set, sub->tags))) {
- revalidate_rule(cbdata->ofproto, sub);
+ /* Has 'rule' expired? */
+ now = time_msec();
+ if (rule->hard_timeout
+ && now > rule->created + rule->hard_timeout * 1000) {
+ reason = OFPRR_HARD_TIMEOUT;
+ } else if (rule->idle_timeout && list_is_empty(&rule->facets)
+ && now >rule->used + rule->idle_timeout * 1000) {
+ reason = OFPRR_IDLE_TIMEOUT;
+ } else {
+ return;
}
-}
-static bool
-revalidate_rule(struct ofproto *p, struct rule *rule)
-{
- const flow_t *flow = &rule->cr.flow;
-
- COVERAGE_INC(ofproto_revalidate_rule);
- if (rule->super) {
- struct rule *super;
- super = rule_from_cls_rule(classifier_lookup_wild(&p->cls, flow));
- if (!super) {
- rule_remove(p, rule);
- return false;
- } else if (super != rule->super) {
- COVERAGE_INC(ofproto_revalidate_moved);
- list_remove(&rule->list);
- list_push_back(&super->list, &rule->list);
- rule->super = super;
- rule->hard_timeout = super->hard_timeout;
- rule->idle_timeout = super->idle_timeout;
- rule->created = super->created;
- rule->used = 0;
- }
+ COVERAGE_INC(ofproto_expired);
+
+ /* Update stats. (This is a no-op if the rule expired due to an idle
+ * timeout, because that only happens when the rule has no facets left.) */
+ LIST_FOR_EACH_SAFE (facet, next_facet, list_node, &rule->facets) {
+ facet_remove(ofproto, facet);
}
- rule_update_actions(p, rule);
- return true;
+ /* Get rid of the rule. */
+ if (!rule_is_hidden(rule)) {
+ rule_send_removed(ofproto, rule, reason);
+ }
+ rule_remove(ofproto, rule);
}
-
+\f
static struct ofpbuf *
-compose_flow_removed(struct ofproto *p, const struct rule *rule,
- long long int now, uint8_t reason)
+compose_ofp_flow_removed(struct ofconn *ofconn, const struct rule *rule,
+ uint8_t reason)
{
struct ofp_flow_removed *ofr;
struct ofpbuf *buf;
- long long int tdiff = now - rule->created;
- uint32_t sec = tdiff / 1000;
- uint32_t msec = tdiff - (sec * 1000);
-
- ofr = make_openflow(sizeof *ofr, OFPT_FLOW_REMOVED, &buf);
- flow_to_match(&rule->cr.flow, rule->cr.wc.wildcards, p->tun_id_from_cookie,
- &ofr->match);
- ofr->cookie = rule->flow_cookie;
+
+ ofr = make_openflow_xid(sizeof *ofr, OFPT_FLOW_REMOVED, htonl(0), &buf);
+ ofputil_cls_rule_to_match(&rule->cr, ofconn->flow_format, &ofr->match,
+ rule->flow_cookie, &ofr->cookie);
ofr->priority = htons(rule->cr.priority);
ofr->reason = reason;
- ofr->duration_sec = htonl(sec);
- ofr->duration_nsec = htonl(msec * 1000000);
+ calc_flow_duration(rule->created, &ofr->duration_sec, &ofr->duration_nsec);
ofr->idle_timeout = htons(rule->idle_timeout);
ofr->packet_count = htonll(rule->packet_count);
ofr->byte_count = htonll(rule->byte_count);
return buf;
}
+static struct ofpbuf *
+compose_nx_flow_removed(const struct rule *rule, uint8_t reason)
+{
+ struct nx_flow_removed *nfr;
+ struct ofpbuf *buf;
+ int match_len;
+
+ make_nxmsg_xid(sizeof *nfr, NXT_FLOW_REMOVED, htonl(0), &buf);
+ match_len = nx_put_match(buf, &rule->cr);
+
+ nfr = buf->data;
+ nfr->cookie = rule->flow_cookie;
+ nfr->priority = htons(rule->cr.priority);
+ nfr->reason = reason;
+ calc_flow_duration(rule->created, &nfr->duration_sec, &nfr->duration_nsec);
+ nfr->idle_timeout = htons(rule->idle_timeout);
+ nfr->match_len = htons(match_len);
+ nfr->packet_count = htonll(rule->packet_count);
+ nfr->byte_count = htonll(rule->byte_count);
+
+ return buf;
+}
+
static void
-send_flow_removed(struct ofproto *p, struct rule *rule,
- long long int now, uint8_t reason)
+rule_send_removed(struct ofproto *p, struct rule *rule, uint8_t reason)
{
struct ofconn *ofconn;
- struct ofconn *prev;
- struct ofpbuf *buf = NULL;
if (!rule->send_flow_removed) {
return;
}
- /* We limit the maximum number of queued flow expirations it by accounting
- * them under the counter for replies. That works because preventing
- * OpenFlow requests from being processed also prevents new flows from
- * being added (and expiring). (It also prevents processing OpenFlow
- * requests that would not add new flows, so it is imperfect.) */
-
- prev = NULL;
LIST_FOR_EACH (ofconn, node, &p->all_conns) {
- if (rconn_is_connected(ofconn->rconn)
- && ofconn_receives_async_msgs(ofconn)) {
- if (prev) {
- queue_tx(ofpbuf_clone(buf), prev, prev->reply_counter);
- } else {
- buf = compose_flow_removed(p, rule, now, reason);
- }
- prev = ofconn;
+ struct ofpbuf *msg;
+
+ if (!rconn_is_connected(ofconn->rconn)
+ || !ofconn_receives_async_msgs(ofconn)) {
+ continue;
}
- }
- if (prev) {
- queue_tx(buf, prev, prev->reply_counter);
+
+ msg = (ofconn->flow_format == NXFF_NXM
+ ? compose_nx_flow_removed(rule, reason)
+ : compose_ofp_flow_removed(ofconn, rule, reason));
+
+ /* Account flow expirations under ofconn->reply_counter, the counter
+ * for replies to OpenFlow requests. That works because preventing
+ * OpenFlow requests from being processed also prevents new flows from
+ * being added (and expiring). (It also prevents processing OpenFlow
+ * requests that would not add new flows, so it is imperfect.) */
+ queue_tx(msg, ofconn, ofconn->reply_counter);
}
}
buffer_id = UINT32_MAX;
} else {
struct ofpbuf payload;
- payload.data = opi->data;
- payload.size = packet->size - offsetof(struct ofp_packet_in, data);
+
+ ofpbuf_use_const(&payload, opi->data,
+ packet->size - offsetof(struct ofp_packet_in, data));
buffer_id = pktbuf_save(ofconn->pktbuf, &payload, in_port);
}
return eth_addr_to_uint64(ea);
}
\f
+static void
+ofproto_unixctl_list(struct unixctl_conn *conn, const char *arg OVS_UNUSED,
+ void *aux OVS_UNUSED)
+{
+ const struct shash_node *node;
+ struct ds results;
+
+ ds_init(&results);
+ SHASH_FOR_EACH (node, &all_ofprotos) {
+ ds_put_format(&results, "%s\n", node->name);
+ }
+ unixctl_command_reply(conn, 200, ds_cstr(&results));
+ ds_destroy(&results);
+}
+
+struct ofproto_trace {
+ struct action_xlate_ctx ctx;
+ struct flow flow;
+ struct ds *result;
+};
+
+static void
+trace_format_rule(struct ds *result, int level, const struct rule *rule)
+{
+ ds_put_char_multiple(result, '\t', level);
+ if (!rule) {
+ ds_put_cstr(result, "No match\n");
+ return;
+ }
+
+ ds_put_format(result, "Rule: cookie=%#"PRIx64" ",
+ ntohll(rule->flow_cookie));
+ cls_rule_format(&rule->cr, result);
+ ds_put_char(result, '\n');
+
+ ds_put_char_multiple(result, '\t', level);
+ ds_put_cstr(result, "OpenFlow ");
+ ofp_print_actions(result, (const struct ofp_action_header *) rule->actions,
+ rule->n_actions * sizeof *rule->actions);
+ ds_put_char(result, '\n');
+}
+
+static void
+trace_format_flow(struct ds *result, int level, const char *title,
+ struct ofproto_trace *trace)
+{
+ ds_put_char_multiple(result, '\t', level);
+ ds_put_format(result, "%s: ", title);
+ if (flow_equal(&trace->ctx.flow, &trace->flow)) {
+ ds_put_cstr(result, "unchanged");
+ } else {
+ flow_format(result, &trace->ctx.flow);
+ trace->flow = trace->ctx.flow;
+ }
+ ds_put_char(result, '\n');
+}
+
+static void
+trace_resubmit(struct action_xlate_ctx *ctx, const struct rule *rule)
+{
+ struct ofproto_trace *trace = CONTAINER_OF(ctx, struct ofproto_trace, ctx);
+ struct ds *result = trace->result;
+
+ ds_put_char(result, '\n');
+ trace_format_flow(result, ctx->recurse + 1, "Resubmitted flow", trace);
+ trace_format_rule(result, ctx->recurse + 1, rule);
+}
+
+static void
+ofproto_unixctl_trace(struct unixctl_conn *conn, const char *args_,
+ void *aux OVS_UNUSED)
+{
+ char *dpname, *in_port_s, *tun_id_s, *packet_s;
+ char *args = xstrdup(args_);
+ char *save_ptr = NULL;
+ struct ofproto *ofproto;
+ struct ofpbuf packet;
+ struct rule *rule;
+ struct ds result;
+ struct flow flow;
+ uint16_t in_port;
+ ovs_be32 tun_id;
+ char *s;
+
+ ofpbuf_init(&packet, strlen(args) / 2);
+ ds_init(&result);
+
+ dpname = strtok_r(args, " ", &save_ptr);
+ tun_id_s = strtok_r(NULL, " ", &save_ptr);
+ in_port_s = strtok_r(NULL, " ", &save_ptr);
+ packet_s = strtok_r(NULL, "", &save_ptr); /* Get entire rest of line. */
+ if (!dpname || !in_port_s || !packet_s) {
+ unixctl_command_reply(conn, 501, "Bad command syntax");
+ goto exit;
+ }
+
+ ofproto = shash_find_data(&all_ofprotos, dpname);
+ if (!ofproto) {
+ unixctl_command_reply(conn, 501, "Unknown ofproto (use ofproto/list "
+ "for help)");
+ goto exit;
+ }
+
+ tun_id = ntohl(strtoul(tun_id_s, NULL, 10));
+ in_port = ofp_port_to_odp_port(atoi(in_port_s));
+
+ packet_s = ofpbuf_put_hex(&packet, packet_s, NULL);
+ packet_s += strspn(packet_s, " ");
+ if (*packet_s != '\0') {
+ unixctl_command_reply(conn, 501, "Trailing garbage in command");
+ goto exit;
+ }
+ if (packet.size < ETH_HEADER_LEN) {
+ unixctl_command_reply(conn, 501, "Packet data too short for Ethernet");
+ goto exit;
+ }
+
+ ds_put_cstr(&result, "Packet: ");
+ s = ofp_packet_to_string(packet.data, packet.size, packet.size);
+ ds_put_cstr(&result, s);
+ free(s);
+
+ flow_extract(&packet, tun_id, in_port, &flow);
+ ds_put_cstr(&result, "Flow: ");
+ flow_format(&result, &flow);
+ ds_put_char(&result, '\n');
+
+ rule = rule_lookup(ofproto, &flow);
+ trace_format_rule(&result, 0, rule);
+ if (rule) {
+ struct ofproto_trace trace;
+ struct ofpbuf *odp_actions;
+
+ trace.result = &result;
+ trace.flow = flow;
+ action_xlate_ctx_init(&trace.ctx, ofproto, &flow, &packet);
+ trace.ctx.resubmit_hook = trace_resubmit;
+ odp_actions = xlate_actions(&trace.ctx,
+ rule->actions, rule->n_actions);
+
+ ds_put_char(&result, '\n');
+ trace_format_flow(&result, 0, "Final flow", &trace);
+ ds_put_cstr(&result, "Datapath actions: ");
+ format_odp_actions(&result, odp_actions->data, odp_actions->size);
+ ofpbuf_delete(odp_actions);
+ }
+
+ unixctl_command_reply(conn, 200, ds_cstr(&result));
+
+exit:
+ ds_destroy(&result);
+ ofpbuf_uninit(&packet);
+ free(args);
+}
+
+static void
+ofproto_unixctl_init(void)
+{
+ static bool registered;
+ if (registered) {
+ return;
+ }
+ registered = true;
+
+ unixctl_command_register("ofproto/list", ofproto_unixctl_list, NULL);
+ unixctl_command_register("ofproto/trace", ofproto_unixctl_trace, NULL);
+}
+\f
static bool
-default_normal_ofhook_cb(const flow_t *flow, const struct ofpbuf *packet,
- struct odp_actions *actions, tag_type *tags,
+default_normal_ofhook_cb(const struct flow *flow, const struct ofpbuf *packet,
+ struct ofpbuf *odp_actions, tag_type *tags,
uint16_t *nf_output_iface, void *ofproto_)
{
struct ofproto *ofproto = ofproto_;
out_port = mac_learning_lookup_tag(ofproto->ml, flow->dl_dst, 0, tags,
NULL);
if (out_port < 0) {
- add_output_group_action(actions, DP_GROUP_FLOOD, nf_output_iface);
+ flood_packets(ofproto, flow->in_port, OFPPC_NO_FLOOD,
+ nf_output_iface, odp_actions);
} else if (out_port != flow->in_port) {
- odp_actions_add(actions, ODPAT_OUTPUT)->output.port = out_port;
+ nl_msg_put_u32(odp_actions, ODPAT_OUTPUT, out_port);
*nf_output_iface = out_port;
} else {
/* Drop. */
}
static const struct ofhooks default_ofhooks = {
- NULL,
default_normal_ofhook_cb,
NULL,
NULL
projects / cascardo / ovs.git / blobdiff