2 * Copyright (c) 2009-2015 Nicira, Inc.
3 * Copyright (c) 2010 Jean Tourrilhes - HP-Labs.
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
26 #include "byte-order.h"
27 #include "classifier.h"
28 #include "connectivity.h"
31 #include "dynamic-string.h"
34 #include "meta-flow.h"
37 #include "ofp-actions.h"
38 #include "ofp-errors.h"
40 #include "ofp-print.h"
43 #include "ofproto-provider.h"
44 #include "openflow/nicira-ext.h"
45 #include "openflow/openflow.h"
47 #include "dp-packet.h"
51 #include "poll-loop.h"
59 #include "tun-metadata.h"
60 #include "unaligned.h"
62 #include "openvswitch/vlog.h"
65 VLOG_DEFINE_THIS_MODULE(ofproto
);
67 COVERAGE_DEFINE(ofproto_flush
);
68 COVERAGE_DEFINE(ofproto_packet_out
);
69 COVERAGE_DEFINE(ofproto_queue_req
);
70 COVERAGE_DEFINE(ofproto_recv_openflow
);
71 COVERAGE_DEFINE(ofproto_reinit_ports
);
72 COVERAGE_DEFINE(ofproto_update_port
);
74 /* Default fields to use for prefix tries in each flow table, unless something
75 * else is configured. */
76 const enum mf_field_id default_prefix_fields
[2] =
77 { MFF_IPV4_DST
, MFF_IPV4_SRC
};
80 static void oftable_init(struct oftable
*);
81 static void oftable_destroy(struct oftable
*);
83 static void oftable_set_name(struct oftable
*, const char *name
);
85 static enum ofperr
evict_rules_from_table(struct oftable
*)
86 OVS_REQUIRES(ofproto_mutex
);
87 static void oftable_disable_eviction(struct oftable
*)
88 OVS_REQUIRES(ofproto_mutex
);
89 static void oftable_enable_eviction(struct oftable
*,
90 const struct mf_subfield
*fields
,
92 OVS_REQUIRES(ofproto_mutex
);
94 /* A set of rules within a single OpenFlow table (oftable) that have the same
95 * values for the oftable's eviction_fields. A rule to be evicted, when one is
96 * needed, is taken from the eviction group that contains the greatest number
99 * An oftable owns any number of eviction groups, each of which contains any
102 * Membership in an eviction group is imprecise, based on the hash of the
103 * oftable's eviction_fields (in the eviction_group's id_node.hash member).
104 * That is, if two rules have different eviction_fields, but those
105 * eviction_fields hash to the same value, then they will belong to the same
106 * eviction_group anyway.
108 * (When eviction is not enabled on an oftable, we don't track any eviction
109 * groups, to save time and space.) */
110 struct eviction_group
{
111 struct hmap_node id_node
; /* In oftable's "eviction_groups_by_id". */
112 struct heap_node size_node
; /* In oftable's "eviction_groups_by_size". */
113 struct heap rules
; /* Contains "struct rule"s. */
116 static bool choose_rule_to_evict(struct oftable
*table
, struct rule
**rulep
)
117 OVS_REQUIRES(ofproto_mutex
);
118 static uint64_t rule_eviction_priority(struct ofproto
*ofproto
, struct rule
*)
119 OVS_REQUIRES(ofproto_mutex
);
120 static void eviction_group_add_rule(struct rule
*)
121 OVS_REQUIRES(ofproto_mutex
);
122 static void eviction_group_remove_rule(struct rule
*)
123 OVS_REQUIRES(ofproto_mutex
);
125 /* Criteria that flow_mod and other operations use for selecting rules on
126 * which to operate. */
127 struct rule_criteria
{
128 /* An OpenFlow table or 255 for all tables. */
131 /* OpenFlow matching criteria. Interpreted different in "loose" way by
132 * collect_rules_loose() and "strict" way by collect_rules_strict(), as
133 * defined in the OpenFlow spec. */
136 /* Matching criteria for the OpenFlow cookie. Consider a bit B in a rule's
137 * cookie and the corresponding bits C in 'cookie' and M in 'cookie_mask'.
138 * The rule will not be selected if M is 1 and B != C. */
140 ovs_be64 cookie_mask
;
142 /* Selection based on actions within a rule:
144 * If out_port != OFPP_ANY, selects only rules that output to out_port.
145 * If out_group != OFPG_ALL, select only rules that output to out_group. */
149 /* If true, collects only rules that are modifiable. */
151 bool include_readonly
;
154 static void rule_criteria_init(struct rule_criteria
*, uint8_t table_id
,
155 const struct match
*match
, int priority
,
156 cls_version_t version
,
157 ovs_be64 cookie
, ovs_be64 cookie_mask
,
158 ofp_port_t out_port
, uint32_t out_group
);
159 static void rule_criteria_require_rw(struct rule_criteria
*,
160 bool can_write_readonly
);
161 static void rule_criteria_destroy(struct rule_criteria
*);
163 static enum ofperr
collect_rules_loose(struct ofproto
*,
164 const struct rule_criteria
*,
165 struct rule_collection
*);
167 /* A packet that needs to be passed to rule_execute().
169 * (We can't do this immediately from ofopgroup_complete() because that holds
170 * ofproto_mutex, which rule_execute() needs released.) */
171 struct rule_execute
{
172 struct ovs_list list_node
; /* In struct ofproto's "rule_executes" list. */
173 struct rule
*rule
; /* Owns a reference to the rule. */
175 struct dp_packet
*packet
; /* Owns the packet. */
178 static void run_rule_executes(struct ofproto
*) OVS_EXCLUDED(ofproto_mutex
);
179 static void destroy_rule_executes(struct ofproto
*);
181 struct learned_cookie
{
183 /* In struct ofproto's 'learned_cookies' hmap. */
184 struct hmap_node hmap_node
OVS_GUARDED_BY(ofproto_mutex
);
186 /* In 'dead_cookies' list when removed from hmap. */
187 struct ovs_list list_node
;
191 ovs_be64 cookie
OVS_GUARDED_BY(ofproto_mutex
);
192 uint8_t table_id
OVS_GUARDED_BY(ofproto_mutex
);
194 /* Number of references from "learn" actions.
196 * When this drops to 0, all of the flows in 'table_id' with the specified
197 * 'cookie' are deleted. */
198 int n
OVS_GUARDED_BY(ofproto_mutex
);
201 static const struct ofpact_learn
*next_learn_with_delete(
202 const struct rule_actions
*, const struct ofpact_learn
*start
);
204 static void learned_cookies_inc(struct ofproto
*, const struct rule_actions
*)
205 OVS_REQUIRES(ofproto_mutex
);
206 static void learned_cookies_dec(struct ofproto
*, const struct rule_actions
*,
207 struct ovs_list
*dead_cookies
)
208 OVS_REQUIRES(ofproto_mutex
);
209 static void learned_cookies_flush(struct ofproto
*, struct ovs_list
*dead_cookies
)
210 OVS_REQUIRES(ofproto_mutex
);
213 static void ofport_destroy__(struct ofport
*) OVS_EXCLUDED(ofproto_mutex
);
214 static void ofport_destroy(struct ofport
*);
216 static void update_port(struct ofproto
*, const char *devname
);
217 static int init_ports(struct ofproto
*);
218 static void reinit_ports(struct ofproto
*);
220 static long long int ofport_get_usage(const struct ofproto
*,
221 ofp_port_t ofp_port
);
222 static void ofport_set_usage(struct ofproto
*, ofp_port_t ofp_port
,
223 long long int last_used
);
224 static void ofport_remove_usage(struct ofproto
*, ofp_port_t ofp_port
);
228 * Keeps track of the currently used and recently used ofport values and is
229 * used to prevent immediate recycling of ofport values. */
230 struct ofport_usage
{
231 struct hmap_node hmap_node
; /* In struct ofproto's "ofport_usage" hmap. */
232 ofp_port_t ofp_port
; /* OpenFlow port number. */
233 long long int last_used
; /* Last time the 'ofp_port' was used. LLONG_MAX
234 represents in-use ofports. */
238 static void ofproto_rule_send_removed(struct rule
*)
239 OVS_EXCLUDED(ofproto_mutex
);
240 static bool rule_is_readonly(const struct rule
*);
241 static void ofproto_rule_insert__(struct ofproto
*, struct rule
*)
242 OVS_REQUIRES(ofproto_mutex
);
243 static void ofproto_rule_remove__(struct ofproto
*, struct rule
*)
244 OVS_REQUIRES(ofproto_mutex
);
246 /* The source of a flow_mod request, in the code that processes flow_mods.
248 * A flow table modification request can be generated externally, via OpenFlow,
249 * or internally through a function call. This structure indicates the source
250 * of an OpenFlow-generated flow_mod. For an internal flow_mod, it isn't
251 * meaningful and thus supplied as NULL. */
252 struct flow_mod_requester
{
253 struct ofconn
*ofconn
; /* Connection on which flow_mod arrived. */
254 const struct ofp_header
*request
;
258 static enum ofperr
replace_rule_create(struct ofproto
*,
259 struct ofputil_flow_mod
*,
260 struct cls_rule
*cr
, uint8_t table_id
,
261 struct rule
*old_rule
,
262 struct rule
**new_rule
)
263 OVS_REQUIRES(ofproto_mutex
);
265 static void replace_rule_start(struct ofproto
*,
266 struct rule
*old_rule
,
267 struct rule
*new_rule
,
268 struct cls_conjunction
*, size_t n_conjs
)
269 OVS_REQUIRES(ofproto_mutex
);
271 static void replace_rule_revert(struct ofproto
*, struct rule
*old_rule
,
272 struct rule
*new_rule
)
273 OVS_REQUIRES(ofproto_mutex
);
275 static void replace_rule_finish(struct ofproto
*, struct ofputil_flow_mod
*,
276 const struct flow_mod_requester
*,
277 struct rule
*old_rule
, struct rule
*new_rule
,
278 struct ovs_list
*dead_cookies
)
279 OVS_REQUIRES(ofproto_mutex
);
280 static void delete_flows__(struct rule_collection
*,
281 enum ofp_flow_removed_reason
,
282 const struct flow_mod_requester
*)
283 OVS_REQUIRES(ofproto_mutex
);
285 static void send_buffered_packet(const struct flow_mod_requester
*,
286 uint32_t buffer_id
, struct rule
*)
287 OVS_REQUIRES(ofproto_mutex
);
289 static bool ofproto_group_exists__(const struct ofproto
*ofproto
,
291 OVS_REQ_RDLOCK(ofproto
->groups_rwlock
);
292 static bool ofproto_group_exists(const struct ofproto
*ofproto
,
294 OVS_EXCLUDED(ofproto
->groups_rwlock
);
295 static enum ofperr
add_group(struct ofproto
*, struct ofputil_group_mod
*);
296 static void handle_openflow(struct ofconn
*, const struct ofpbuf
*);
297 static enum ofperr
do_bundle_flow_mod_start(struct ofproto
*,
298 struct ofputil_flow_mod
*,
299 struct ofp_bundle_entry
*)
300 OVS_REQUIRES(ofproto_mutex
);
301 static void do_bundle_flow_mod_finish(struct ofproto
*,
302 struct ofputil_flow_mod
*,
303 const struct flow_mod_requester
*,
304 struct ofp_bundle_entry
*)
305 OVS_REQUIRES(ofproto_mutex
);
306 static enum ofperr
handle_flow_mod__(struct ofproto
*,
307 struct ofputil_flow_mod
*,
308 const struct flow_mod_requester
*)
309 OVS_EXCLUDED(ofproto_mutex
);
310 static void calc_duration(long long int start
, long long int now
,
311 uint32_t *sec
, uint32_t *nsec
);
314 static uint64_t pick_datapath_id(const struct ofproto
*);
315 static uint64_t pick_fallback_dpid(void);
316 static void ofproto_destroy__(struct ofproto
*);
317 static void update_mtu(struct ofproto
*, struct ofport
*);
318 static void meter_delete(struct ofproto
*, uint32_t first
, uint32_t last
);
319 static void meter_insert_rule(struct rule
*);
322 static void ofproto_unixctl_init(void);
324 /* All registered ofproto classes, in probe order. */
325 static const struct ofproto_class
**ofproto_classes
;
326 static size_t n_ofproto_classes
;
327 static size_t allocated_ofproto_classes
;
329 /* Global lock that protects all flow table operations. */
330 struct ovs_mutex ofproto_mutex
= OVS_MUTEX_INITIALIZER
;
332 unsigned ofproto_flow_limit
= OFPROTO_FLOW_LIMIT_DEFAULT
;
333 unsigned ofproto_max_idle
= OFPROTO_MAX_IDLE_DEFAULT
;
335 size_t n_handlers
, n_revalidators
;
339 /* Map from datapath name to struct ofproto, for use by unixctl commands. */
340 static struct hmap all_ofprotos
= HMAP_INITIALIZER(&all_ofprotos
);
342 /* Initial mappings of port to OpenFlow number mappings. */
343 static struct shash init_ofp_ports
= SHASH_INITIALIZER(&init_ofp_ports
);
345 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(1, 5);
347 /* The default value of true waits for flow restore. */
348 static bool flow_restore_wait
= true;
350 /* Must be called to initialize the ofproto library.
352 * The caller may pass in 'iface_hints', which contains an shash of
353 * "iface_hint" elements indexed by the interface's name. The provider
354 * may use these hints to describe the startup configuration in order to
355 * reinitialize its state. The caller owns the provided data, so a
356 * provider will make copies of anything required. An ofproto provider
357 * will remove any existing state that is not described by the hint, and
358 * may choose to remove it all. */
360 ofproto_init(const struct shash
*iface_hints
)
362 struct shash_node
*node
;
365 ofproto_class_register(&ofproto_dpif_class
);
367 /* Make a local copy, since we don't own 'iface_hints' elements. */
368 SHASH_FOR_EACH(node
, iface_hints
) {
369 const struct iface_hint
*orig_hint
= node
->data
;
370 struct iface_hint
*new_hint
= xmalloc(sizeof *new_hint
);
371 const char *br_type
= ofproto_normalize_type(orig_hint
->br_type
);
373 new_hint
->br_name
= xstrdup(orig_hint
->br_name
);
374 new_hint
->br_type
= xstrdup(br_type
);
375 new_hint
->ofp_port
= orig_hint
->ofp_port
;
377 shash_add(&init_ofp_ports
, node
->name
, new_hint
);
380 for (i
= 0; i
< n_ofproto_classes
; i
++) {
381 ofproto_classes
[i
]->init(&init_ofp_ports
);
385 /* 'type' should be a normalized datapath type, as returned by
386 * ofproto_normalize_type(). Returns the corresponding ofproto_class
387 * structure, or a null pointer if there is none registered for 'type'. */
388 static const struct ofproto_class
*
389 ofproto_class_find__(const char *type
)
393 for (i
= 0; i
< n_ofproto_classes
; i
++) {
394 const struct ofproto_class
*class = ofproto_classes
[i
];
399 class->enumerate_types(&types
);
400 found
= sset_contains(&types
, type
);
401 sset_destroy(&types
);
407 VLOG_WARN("unknown datapath type %s", type
);
411 /* Registers a new ofproto class. After successful registration, new ofprotos
412 * of that type can be created using ofproto_create(). */
414 ofproto_class_register(const struct ofproto_class
*new_class
)
418 for (i
= 0; i
< n_ofproto_classes
; i
++) {
419 if (ofproto_classes
[i
] == new_class
) {
424 if (n_ofproto_classes
>= allocated_ofproto_classes
) {
425 ofproto_classes
= x2nrealloc(ofproto_classes
,
426 &allocated_ofproto_classes
,
427 sizeof *ofproto_classes
);
429 ofproto_classes
[n_ofproto_classes
++] = new_class
;
433 /* Unregisters a datapath provider. 'type' must have been previously
434 * registered and not currently be in use by any ofprotos. After
435 * unregistration new datapaths of that type cannot be opened using
436 * ofproto_create(). */
438 ofproto_class_unregister(const struct ofproto_class
*class)
442 for (i
= 0; i
< n_ofproto_classes
; i
++) {
443 if (ofproto_classes
[i
] == class) {
444 for (i
++; i
< n_ofproto_classes
; i
++) {
445 ofproto_classes
[i
- 1] = ofproto_classes
[i
];
451 VLOG_WARN("attempted to unregister an ofproto class that is not "
456 /* Clears 'types' and enumerates all registered ofproto types into it. The
457 * caller must first initialize the sset. */
459 ofproto_enumerate_types(struct sset
*types
)
464 for (i
= 0; i
< n_ofproto_classes
; i
++) {
465 ofproto_classes
[i
]->enumerate_types(types
);
469 /* Returns the fully spelled out name for the given ofproto 'type'.
471 * Normalized type string can be compared with strcmp(). Unnormalized type
472 * string might be the same even if they have different spellings. */
474 ofproto_normalize_type(const char *type
)
476 return type
&& type
[0] ? type
: "system";
479 /* Clears 'names' and enumerates the names of all known created ofprotos with
480 * the given 'type'. The caller must first initialize the sset. Returns 0 if
481 * successful, otherwise a positive errno value.
483 * Some kinds of datapaths might not be practically enumerable. This is not
484 * considered an error. */
486 ofproto_enumerate_names(const char *type
, struct sset
*names
)
488 const struct ofproto_class
*class = ofproto_class_find__(type
);
489 return class ? class->enumerate_names(type
, names
) : EAFNOSUPPORT
;
493 ofproto_bump_tables_version(struct ofproto
*ofproto
)
495 ++ofproto
->tables_version
;
496 ofproto
->ofproto_class
->set_tables_version(ofproto
,
497 ofproto
->tables_version
);
501 ofproto_create(const char *datapath_name
, const char *datapath_type
,
502 struct ofproto
**ofprotop
)
504 const struct ofproto_class
*class;
505 struct ofproto
*ofproto
;
511 ofproto_unixctl_init();
513 datapath_type
= ofproto_normalize_type(datapath_type
);
514 class = ofproto_class_find__(datapath_type
);
516 VLOG_WARN("could not create datapath %s of unknown type %s",
517 datapath_name
, datapath_type
);
521 ofproto
= class->alloc();
523 VLOG_ERR("failed to allocate datapath %s of type %s",
524 datapath_name
, datapath_type
);
529 ovs_mutex_lock(&ofproto_mutex
);
530 memset(ofproto
, 0, sizeof *ofproto
);
531 ofproto
->ofproto_class
= class;
532 ofproto
->name
= xstrdup(datapath_name
);
533 ofproto
->type
= xstrdup(datapath_type
);
534 hmap_insert(&all_ofprotos
, &ofproto
->hmap_node
,
535 hash_string(ofproto
->name
, 0));
536 ofproto
->datapath_id
= 0;
537 ofproto
->forward_bpdu
= false;
538 ofproto
->fallback_dpid
= pick_fallback_dpid();
539 ofproto
->mfr_desc
= NULL
;
540 ofproto
->hw_desc
= NULL
;
541 ofproto
->sw_desc
= NULL
;
542 ofproto
->serial_desc
= NULL
;
543 ofproto
->dp_desc
= NULL
;
544 ofproto
->frag_handling
= OFPC_FRAG_NORMAL
;
545 hmap_init(&ofproto
->ports
);
546 hmap_init(&ofproto
->ofport_usage
);
547 shash_init(&ofproto
->port_by_name
);
548 simap_init(&ofproto
->ofp_requests
);
549 ofproto
->max_ports
= ofp_to_u16(OFPP_MAX
);
550 ofproto
->eviction_group_timer
= LLONG_MIN
;
551 ofproto
->tables
= NULL
;
552 ofproto
->n_tables
= 0;
553 ofproto
->tables_version
= CLS_MIN_VERSION
;
554 hindex_init(&ofproto
->cookies
);
555 hmap_init(&ofproto
->learned_cookies
);
556 list_init(&ofproto
->expirable
);
557 ofproto
->connmgr
= connmgr_create(ofproto
, datapath_name
, datapath_name
);
558 guarded_list_init(&ofproto
->rule_executes
);
559 ofproto
->vlan_bitmap
= NULL
;
560 ofproto
->vlans_changed
= false;
561 ofproto
->min_mtu
= INT_MAX
;
562 ovs_rwlock_init(&ofproto
->groups_rwlock
);
563 hmap_init(&ofproto
->groups
);
564 ovs_mutex_unlock(&ofproto_mutex
);
565 ofproto
->ogf
.types
= 0xf;
566 ofproto
->ogf
.capabilities
= OFPGFC_CHAINING
| OFPGFC_SELECT_LIVENESS
|
567 OFPGFC_SELECT_WEIGHT
;
568 for (i
= 0; i
< 4; i
++) {
569 ofproto
->ogf
.max_groups
[i
] = OFPG_MAX
;
570 ofproto
->ogf
.ofpacts
[i
] = (UINT64_C(1) << N_OFPACTS
) - 1;
574 error
= ofproto
->ofproto_class
->construct(ofproto
);
576 VLOG_ERR("failed to open datapath %s: %s",
577 datapath_name
, ovs_strerror(error
));
578 connmgr_destroy(ofproto
->connmgr
);
579 ofproto_destroy__(ofproto
);
583 /* Check that hidden tables, if any, are at the end. */
584 ovs_assert(ofproto
->n_tables
);
585 for (i
= 0; i
+ 1 < ofproto
->n_tables
; i
++) {
586 enum oftable_flags flags
= ofproto
->tables
[i
].flags
;
587 enum oftable_flags next_flags
= ofproto
->tables
[i
+ 1].flags
;
589 ovs_assert(!(flags
& OFTABLE_HIDDEN
) || next_flags
& OFTABLE_HIDDEN
);
592 ofproto
->datapath_id
= pick_datapath_id(ofproto
);
595 /* Initialize meters table. */
596 if (ofproto
->ofproto_class
->meter_get_features
) {
597 ofproto
->ofproto_class
->meter_get_features(ofproto
,
598 &ofproto
->meter_features
);
600 memset(&ofproto
->meter_features
, 0, sizeof ofproto
->meter_features
);
602 ofproto
->meters
= xzalloc((ofproto
->meter_features
.max_meters
+ 1)
603 * sizeof(struct meter
*));
605 /* Set the initial tables version. */
606 ofproto_bump_tables_version(ofproto
);
612 /* Must be called (only) by an ofproto implementation in its constructor
613 * function. See the large comment on 'construct' in struct ofproto_class for
616 ofproto_init_tables(struct ofproto
*ofproto
, int n_tables
)
618 struct oftable
*table
;
620 ovs_assert(!ofproto
->n_tables
);
621 ovs_assert(n_tables
>= 1 && n_tables
<= 255);
623 ofproto
->n_tables
= n_tables
;
624 ofproto
->tables
= xmalloc(n_tables
* sizeof *ofproto
->tables
);
625 OFPROTO_FOR_EACH_TABLE (table
, ofproto
) {
630 /* To be optionally called (only) by an ofproto implementation in its
631 * constructor function. See the large comment on 'construct' in struct
632 * ofproto_class for details.
634 * Sets the maximum number of ports to 'max_ports'. The ofproto generic layer
635 * will then ensure that actions passed into the ofproto implementation will
636 * not refer to OpenFlow ports numbered 'max_ports' or higher. If this
637 * function is not called, there will be no such restriction.
639 * Reserved ports numbered OFPP_MAX and higher are special and not subject to
640 * the 'max_ports' restriction. */
642 ofproto_init_max_ports(struct ofproto
*ofproto
, uint16_t max_ports
)
644 ovs_assert(max_ports
<= ofp_to_u16(OFPP_MAX
));
645 ofproto
->max_ports
= max_ports
;
649 ofproto_get_datapath_id(const struct ofproto
*ofproto
)
651 return ofproto
->datapath_id
;
655 ofproto_set_datapath_id(struct ofproto
*p
, uint64_t datapath_id
)
657 uint64_t old_dpid
= p
->datapath_id
;
658 p
->datapath_id
= datapath_id
? datapath_id
: pick_datapath_id(p
);
659 if (p
->datapath_id
!= old_dpid
) {
660 /* Force all active connections to reconnect, since there is no way to
661 * notify a controller that the datapath ID has changed. */
662 ofproto_reconnect_controllers(p
);
667 ofproto_set_controllers(struct ofproto
*p
,
668 const struct ofproto_controller
*controllers
,
669 size_t n_controllers
, uint32_t allowed_versions
)
671 connmgr_set_controllers(p
->connmgr
, controllers
, n_controllers
,
676 ofproto_set_fail_mode(struct ofproto
*p
, enum ofproto_fail_mode fail_mode
)
678 connmgr_set_fail_mode(p
->connmgr
, fail_mode
);
681 /* Drops the connections between 'ofproto' and all of its controllers, forcing
682 * them to reconnect. */
684 ofproto_reconnect_controllers(struct ofproto
*ofproto
)
686 connmgr_reconnect(ofproto
->connmgr
);
689 /* Sets the 'n' TCP port addresses in 'extras' as ones to which 'ofproto''s
690 * in-band control should guarantee access, in the same way that in-band
691 * control guarantees access to OpenFlow controllers. */
693 ofproto_set_extra_in_band_remotes(struct ofproto
*ofproto
,
694 const struct sockaddr_in
*extras
, size_t n
)
696 connmgr_set_extra_in_band_remotes(ofproto
->connmgr
, extras
, n
);
699 /* Sets the OpenFlow queue used by flows set up by in-band control on
700 * 'ofproto' to 'queue_id'. If 'queue_id' is negative, then in-band control
701 * flows will use the default queue. */
703 ofproto_set_in_band_queue(struct ofproto
*ofproto
, int queue_id
)
705 connmgr_set_in_band_queue(ofproto
->connmgr
, queue_id
);
708 /* Sets the number of flows at which eviction from the kernel flow table
711 ofproto_set_flow_limit(unsigned limit
)
713 ofproto_flow_limit
= limit
;
716 /* Sets the maximum idle time for flows in the datapath before they are
719 ofproto_set_max_idle(unsigned max_idle
)
721 ofproto_max_idle
= max_idle
;
724 /* If forward_bpdu is true, the NORMAL action will forward frames with
725 * reserved (e.g. STP) destination Ethernet addresses. if forward_bpdu is false,
726 * the NORMAL action will drop these frames. */
728 ofproto_set_forward_bpdu(struct ofproto
*ofproto
, bool forward_bpdu
)
730 bool old_val
= ofproto
->forward_bpdu
;
731 ofproto
->forward_bpdu
= forward_bpdu
;
732 if (old_val
!= ofproto
->forward_bpdu
) {
733 if (ofproto
->ofproto_class
->forward_bpdu_changed
) {
734 ofproto
->ofproto_class
->forward_bpdu_changed(ofproto
);
739 /* Sets the MAC aging timeout for the OFPP_NORMAL action on 'ofproto' to
740 * 'idle_time', in seconds, and the maximum number of MAC table entries to
743 ofproto_set_mac_table_config(struct ofproto
*ofproto
, unsigned idle_time
,
746 if (ofproto
->ofproto_class
->set_mac_table_config
) {
747 ofproto
->ofproto_class
->set_mac_table_config(ofproto
, idle_time
,
752 /* Multicast snooping configuration. */
754 /* Configures multicast snooping on 'ofproto' using the settings
755 * defined in 's'. If 's' is NULL, disables multicast snooping.
757 * Returns 0 if successful, otherwise a positive errno value. */
759 ofproto_set_mcast_snooping(struct ofproto
*ofproto
,
760 const struct ofproto_mcast_snooping_settings
*s
)
762 return (ofproto
->ofproto_class
->set_mcast_snooping
763 ? ofproto
->ofproto_class
->set_mcast_snooping(ofproto
, s
)
767 /* Configures multicast snooping flood settings on 'ofp_port' of 'ofproto'.
769 * Returns 0 if successful, otherwise a positive errno value.*/
771 ofproto_port_set_mcast_snooping(struct ofproto
*ofproto
, void *aux
,
772 const struct ofproto_mcast_snooping_port_settings
*s
)
774 return (ofproto
->ofproto_class
->set_mcast_snooping_port
775 ? ofproto
->ofproto_class
->set_mcast_snooping_port(ofproto
, aux
, s
)
780 ofproto_set_n_dpdk_rxqs(int n_rxqs
)
782 n_dpdk_rxqs
= MAX(n_rxqs
, 0);
786 ofproto_set_cpu_mask(const char *cmask
)
790 pmd_cpu_mask
= cmask
? xstrdup(cmask
) : NULL
;
794 ofproto_set_threads(int n_handlers_
, int n_revalidators_
)
796 int threads
= MAX(count_cpu_cores(), 2);
798 n_revalidators
= MAX(n_revalidators_
, 0);
799 n_handlers
= MAX(n_handlers_
, 0);
801 if (!n_revalidators
) {
802 n_revalidators
= n_handlers
803 ? MAX(threads
- (int) n_handlers
, 1)
808 n_handlers
= MAX(threads
- (int) n_revalidators
, 1);
813 ofproto_set_dp_desc(struct ofproto
*p
, const char *dp_desc
)
816 p
->dp_desc
= dp_desc
? xstrdup(dp_desc
) : NULL
;
820 ofproto_set_snoops(struct ofproto
*ofproto
, const struct sset
*snoops
)
822 return connmgr_set_snoops(ofproto
->connmgr
, snoops
);
826 ofproto_set_netflow(struct ofproto
*ofproto
,
827 const struct netflow_options
*nf_options
)
829 if (nf_options
&& sset_is_empty(&nf_options
->collectors
)) {
833 if (ofproto
->ofproto_class
->set_netflow
) {
834 return ofproto
->ofproto_class
->set_netflow(ofproto
, nf_options
);
836 return nf_options
? EOPNOTSUPP
: 0;
841 ofproto_set_sflow(struct ofproto
*ofproto
,
842 const struct ofproto_sflow_options
*oso
)
844 if (oso
&& sset_is_empty(&oso
->targets
)) {
848 if (ofproto
->ofproto_class
->set_sflow
) {
849 return ofproto
->ofproto_class
->set_sflow(ofproto
, oso
);
851 return oso
? EOPNOTSUPP
: 0;
856 ofproto_set_ipfix(struct ofproto
*ofproto
,
857 const struct ofproto_ipfix_bridge_exporter_options
*bo
,
858 const struct ofproto_ipfix_flow_exporter_options
*fo
,
861 if (ofproto
->ofproto_class
->set_ipfix
) {
862 return ofproto
->ofproto_class
->set_ipfix(ofproto
, bo
, fo
, n_fo
);
864 return (bo
|| fo
) ? EOPNOTSUPP
: 0;
869 ofproto_set_flow_restore_wait(bool flow_restore_wait_db
)
871 flow_restore_wait
= flow_restore_wait_db
;
875 ofproto_get_flow_restore_wait(void)
877 return flow_restore_wait
;
881 /* Spanning Tree Protocol (STP) configuration. */
883 /* Configures STP on 'ofproto' using the settings defined in 's'. If
884 * 's' is NULL, disables STP.
886 * Returns 0 if successful, otherwise a positive errno value. */
888 ofproto_set_stp(struct ofproto
*ofproto
,
889 const struct ofproto_stp_settings
*s
)
891 return (ofproto
->ofproto_class
->set_stp
892 ? ofproto
->ofproto_class
->set_stp(ofproto
, s
)
896 /* Retrieves STP status of 'ofproto' and stores it in 's'. If the
897 * 'enabled' member of 's' is false, then the other members are not
900 * Returns 0 if successful, otherwise a positive errno value. */
902 ofproto_get_stp_status(struct ofproto
*ofproto
,
903 struct ofproto_stp_status
*s
)
905 return (ofproto
->ofproto_class
->get_stp_status
906 ? ofproto
->ofproto_class
->get_stp_status(ofproto
, s
)
910 /* Configures STP on 'ofp_port' of 'ofproto' using the settings defined
911 * in 's'. The caller is responsible for assigning STP port numbers
912 * (using the 'port_num' member in the range of 1 through 255, inclusive)
913 * and ensuring there are no duplicates. If the 's' is NULL, then STP
914 * is disabled on the port.
916 * Returns 0 if successful, otherwise a positive errno value.*/
918 ofproto_port_set_stp(struct ofproto
*ofproto
, ofp_port_t ofp_port
,
919 const struct ofproto_port_stp_settings
*s
)
921 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
923 VLOG_WARN("%s: cannot configure STP on nonexistent port %"PRIu16
,
924 ofproto
->name
, ofp_port
);
928 return (ofproto
->ofproto_class
->set_stp_port
929 ? ofproto
->ofproto_class
->set_stp_port(ofport
, s
)
933 /* Retrieves STP port status of 'ofp_port' on 'ofproto' and stores it in
934 * 's'. If the 'enabled' member in 's' is false, then the other members
935 * are not meaningful.
937 * Returns 0 if successful, otherwise a positive errno value.*/
939 ofproto_port_get_stp_status(struct ofproto
*ofproto
, ofp_port_t ofp_port
,
940 struct ofproto_port_stp_status
*s
)
942 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
944 VLOG_WARN_RL(&rl
, "%s: cannot get STP status on nonexistent "
945 "port %"PRIu16
, ofproto
->name
, ofp_port
);
949 return (ofproto
->ofproto_class
->get_stp_port_status
950 ? ofproto
->ofproto_class
->get_stp_port_status(ofport
, s
)
954 /* Retrieves STP port statistics of 'ofp_port' on 'ofproto' and stores it in
955 * 's'. If the 'enabled' member in 's' is false, then the other members
956 * are not meaningful.
958 * Returns 0 if successful, otherwise a positive errno value.*/
960 ofproto_port_get_stp_stats(struct ofproto
*ofproto
, ofp_port_t ofp_port
,
961 struct ofproto_port_stp_stats
*s
)
963 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
965 VLOG_WARN_RL(&rl
, "%s: cannot get STP stats on nonexistent "
966 "port %"PRIu16
, ofproto
->name
, ofp_port
);
970 return (ofproto
->ofproto_class
->get_stp_port_stats
971 ? ofproto
->ofproto_class
->get_stp_port_stats(ofport
, s
)
975 /* Rapid Spanning Tree Protocol (RSTP) configuration. */
977 /* Configures RSTP on 'ofproto' using the settings defined in 's'. If
978 * 's' is NULL, disables RSTP.
980 * Returns 0 if successful, otherwise a positive errno value. */
982 ofproto_set_rstp(struct ofproto
*ofproto
,
983 const struct ofproto_rstp_settings
*s
)
985 if (!ofproto
->ofproto_class
->set_rstp
) {
988 ofproto
->ofproto_class
->set_rstp(ofproto
, s
);
992 /* Retrieves RSTP status of 'ofproto' and stores it in 's'. If the
993 * 'enabled' member of 's' is false, then the other members are not
996 * Returns 0 if successful, otherwise a positive errno value. */
998 ofproto_get_rstp_status(struct ofproto
*ofproto
,
999 struct ofproto_rstp_status
*s
)
1001 if (!ofproto
->ofproto_class
->get_rstp_status
) {
1004 ofproto
->ofproto_class
->get_rstp_status(ofproto
, s
);
1008 /* Configures RSTP on 'ofp_port' of 'ofproto' using the settings defined
1009 * in 's'. The caller is responsible for assigning RSTP port numbers
1010 * (using the 'port_num' member in the range of 1 through 255, inclusive)
1011 * and ensuring there are no duplicates. If the 's' is NULL, then RSTP
1012 * is disabled on the port.
1014 * Returns 0 if successful, otherwise a positive errno value.*/
1016 ofproto_port_set_rstp(struct ofproto
*ofproto
, ofp_port_t ofp_port
,
1017 const struct ofproto_port_rstp_settings
*s
)
1019 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
1021 VLOG_WARN("%s: cannot configure RSTP on nonexistent port %"PRIu16
,
1022 ofproto
->name
, ofp_port
);
1026 if (!ofproto
->ofproto_class
->set_rstp_port
) {
1029 ofproto
->ofproto_class
->set_rstp_port(ofport
, s
);
1033 /* Retrieves RSTP port status of 'ofp_port' on 'ofproto' and stores it in
1034 * 's'. If the 'enabled' member in 's' is false, then the other members
1035 * are not meaningful.
1037 * Returns 0 if successful, otherwise a positive errno value.*/
1039 ofproto_port_get_rstp_status(struct ofproto
*ofproto
, ofp_port_t ofp_port
,
1040 struct ofproto_port_rstp_status
*s
)
1042 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
1044 VLOG_WARN_RL(&rl
, "%s: cannot get RSTP status on nonexistent "
1045 "port %"PRIu16
, ofproto
->name
, ofp_port
);
1049 if (!ofproto
->ofproto_class
->get_rstp_port_status
) {
1052 ofproto
->ofproto_class
->get_rstp_port_status(ofport
, s
);
1056 /* Queue DSCP configuration. */
1058 /* Registers meta-data associated with the 'n_qdscp' Qualities of Service
1059 * 'queues' attached to 'ofport'. This data is not intended to be sufficient
1060 * to implement QoS. Instead, it is used to implement features which require
1061 * knowledge of what queues exist on a port, and some basic information about
1064 * Returns 0 if successful, otherwise a positive errno value. */
1066 ofproto_port_set_queues(struct ofproto
*ofproto
, ofp_port_t ofp_port
,
1067 const struct ofproto_port_queue
*queues
,
1070 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
1073 VLOG_WARN("%s: cannot set queues on nonexistent port %"PRIu16
,
1074 ofproto
->name
, ofp_port
);
1078 return (ofproto
->ofproto_class
->set_queues
1079 ? ofproto
->ofproto_class
->set_queues(ofport
, queues
, n_queues
)
1083 /* LLDP configuration. */
1085 ofproto_port_set_lldp(struct ofproto
*ofproto
,
1086 ofp_port_t ofp_port
,
1087 const struct smap
*cfg
)
1089 struct ofport
*ofport
;
1092 ofport
= ofproto_get_port(ofproto
, ofp_port
);
1094 VLOG_WARN("%s: cannot configure LLDP on nonexistent port %"PRIu16
,
1095 ofproto
->name
, ofp_port
);
1098 error
= (ofproto
->ofproto_class
->set_lldp
1099 ? ofproto
->ofproto_class
->set_lldp(ofport
, cfg
)
1102 VLOG_WARN("%s: lldp configuration on port %"PRIu16
" (%s) failed (%s)",
1103 ofproto
->name
, ofp_port
, netdev_get_name(ofport
->netdev
),
1104 ovs_strerror(error
));
1109 ofproto_set_aa(struct ofproto
*ofproto
, void *aux OVS_UNUSED
,
1110 const struct aa_settings
*s
)
1112 if (!ofproto
->ofproto_class
->set_aa
) {
1115 ofproto
->ofproto_class
->set_aa(ofproto
, s
);
1120 ofproto_aa_mapping_register(struct ofproto
*ofproto
, void *aux
,
1121 const struct aa_mapping_settings
*s
)
1123 if (!ofproto
->ofproto_class
->aa_mapping_set
) {
1126 ofproto
->ofproto_class
->aa_mapping_set(ofproto
, aux
, s
);
1131 ofproto_aa_mapping_unregister(struct ofproto
*ofproto
, void *aux
)
1133 if (!ofproto
->ofproto_class
->aa_mapping_unset
) {
1136 ofproto
->ofproto_class
->aa_mapping_unset(ofproto
, aux
);
1141 ofproto_aa_vlan_get_queued(struct ofproto
*ofproto
,
1142 struct ovs_list
*list
)
1144 if (!ofproto
->ofproto_class
->aa_vlan_get_queued
) {
1147 ofproto
->ofproto_class
->aa_vlan_get_queued(ofproto
, list
);
1152 ofproto_aa_vlan_get_queue_size(struct ofproto
*ofproto
)
1154 if (!ofproto
->ofproto_class
->aa_vlan_get_queue_size
) {
1157 return ofproto
->ofproto_class
->aa_vlan_get_queue_size(ofproto
);
1160 /* Connectivity Fault Management configuration. */
1162 /* Clears the CFM configuration from 'ofp_port' on 'ofproto'. */
1164 ofproto_port_clear_cfm(struct ofproto
*ofproto
, ofp_port_t ofp_port
)
1166 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
1167 if (ofport
&& ofproto
->ofproto_class
->set_cfm
) {
1168 ofproto
->ofproto_class
->set_cfm(ofport
, NULL
);
1172 /* Configures connectivity fault management on 'ofp_port' in 'ofproto'. Takes
1173 * basic configuration from the configuration members in 'cfm', and the remote
1174 * maintenance point ID from remote_mpid. Ignores the statistics members of
1177 * This function has no effect if 'ofproto' does not have a port 'ofp_port'. */
1179 ofproto_port_set_cfm(struct ofproto
*ofproto
, ofp_port_t ofp_port
,
1180 const struct cfm_settings
*s
)
1182 struct ofport
*ofport
;
1185 ofport
= ofproto_get_port(ofproto
, ofp_port
);
1187 VLOG_WARN("%s: cannot configure CFM on nonexistent port %"PRIu16
,
1188 ofproto
->name
, ofp_port
);
1192 /* XXX: For configuration simplicity, we only support one remote_mpid
1193 * outside of the CFM module. It's not clear if this is the correct long
1194 * term solution or not. */
1195 error
= (ofproto
->ofproto_class
->set_cfm
1196 ? ofproto
->ofproto_class
->set_cfm(ofport
, s
)
1199 VLOG_WARN("%s: CFM configuration on port %"PRIu16
" (%s) failed (%s)",
1200 ofproto
->name
, ofp_port
, netdev_get_name(ofport
->netdev
),
1201 ovs_strerror(error
));
1205 /* Configures BFD on 'ofp_port' in 'ofproto'. This function has no effect if
1206 * 'ofproto' does not have a port 'ofp_port'. */
1208 ofproto_port_set_bfd(struct ofproto
*ofproto
, ofp_port_t ofp_port
,
1209 const struct smap
*cfg
)
1211 struct ofport
*ofport
;
1214 ofport
= ofproto_get_port(ofproto
, ofp_port
);
1216 VLOG_WARN("%s: cannot configure bfd on nonexistent port %"PRIu16
,
1217 ofproto
->name
, ofp_port
);
1221 error
= (ofproto
->ofproto_class
->set_bfd
1222 ? ofproto
->ofproto_class
->set_bfd(ofport
, cfg
)
1225 VLOG_WARN("%s: bfd configuration on port %"PRIu16
" (%s) failed (%s)",
1226 ofproto
->name
, ofp_port
, netdev_get_name(ofport
->netdev
),
1227 ovs_strerror(error
));
1231 /* Checks the status change of BFD on 'ofport'.
1233 * Returns true if 'ofproto_class' does not support 'bfd_status_changed'. */
1235 ofproto_port_bfd_status_changed(struct ofproto
*ofproto
, ofp_port_t ofp_port
)
1237 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
1238 return (ofport
&& ofproto
->ofproto_class
->bfd_status_changed
1239 ? ofproto
->ofproto_class
->bfd_status_changed(ofport
)
1243 /* Populates 'status' with the status of BFD on 'ofport'. Returns 0 on
1244 * success. Returns a positive errno otherwise. Has no effect if 'ofp_port'
1245 * is not an OpenFlow port in 'ofproto'.
1247 * The caller must provide and own '*status'. */
1249 ofproto_port_get_bfd_status(struct ofproto
*ofproto
, ofp_port_t ofp_port
,
1250 struct smap
*status
)
1252 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
1253 return (ofport
&& ofproto
->ofproto_class
->get_bfd_status
1254 ? ofproto
->ofproto_class
->get_bfd_status(ofport
, status
)
1258 /* Checks the status of LACP negotiation for 'ofp_port' within ofproto.
1259 * Returns 1 if LACP partner information for 'ofp_port' is up-to-date,
1260 * 0 if LACP partner information is not current (generally indicating a
1261 * connectivity problem), or -1 if LACP is not enabled on 'ofp_port'. */
1263 ofproto_port_is_lacp_current(struct ofproto
*ofproto
, ofp_port_t ofp_port
)
1265 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
1266 return (ofport
&& ofproto
->ofproto_class
->port_is_lacp_current
1267 ? ofproto
->ofproto_class
->port_is_lacp_current(ofport
)
1272 ofproto_port_get_lacp_stats(const struct ofport
*port
, struct lacp_slave_stats
*stats
)
1274 struct ofproto
*ofproto
= port
->ofproto
;
1277 if (ofproto
->ofproto_class
->port_get_lacp_stats
) {
1278 error
= ofproto
->ofproto_class
->port_get_lacp_stats(port
, stats
);
1288 /* Registers a "bundle" associated with client data pointer 'aux' in 'ofproto'.
1289 * A bundle is the same concept as a Port in OVSDB, that is, it consists of one
1290 * or more "slave" devices (Interfaces, in OVSDB) along with a VLAN
1291 * configuration plus, if there is more than one slave, a bonding
1294 * If 'aux' is already registered then this function updates its configuration
1295 * to 's'. Otherwise, this function registers a new bundle.
1297 * Bundles only affect the NXAST_AUTOPATH action and output to the OFPP_NORMAL
1300 ofproto_bundle_register(struct ofproto
*ofproto
, void *aux
,
1301 const struct ofproto_bundle_settings
*s
)
1303 return (ofproto
->ofproto_class
->bundle_set
1304 ? ofproto
->ofproto_class
->bundle_set(ofproto
, aux
, s
)
1308 /* Unregisters the bundle registered on 'ofproto' with auxiliary data 'aux'.
1309 * If no such bundle has been registered, this has no effect. */
1311 ofproto_bundle_unregister(struct ofproto
*ofproto
, void *aux
)
1313 return ofproto_bundle_register(ofproto
, aux
, NULL
);
1317 /* Registers a mirror associated with client data pointer 'aux' in 'ofproto'.
1318 * If 'aux' is already registered then this function updates its configuration
1319 * to 's'. Otherwise, this function registers a new mirror. */
1321 ofproto_mirror_register(struct ofproto
*ofproto
, void *aux
,
1322 const struct ofproto_mirror_settings
*s
)
1324 return (ofproto
->ofproto_class
->mirror_set
1325 ? ofproto
->ofproto_class
->mirror_set(ofproto
, aux
, s
)
1329 /* Unregisters the mirror registered on 'ofproto' with auxiliary data 'aux'.
1330 * If no mirror has been registered, this has no effect. */
1332 ofproto_mirror_unregister(struct ofproto
*ofproto
, void *aux
)
1334 return ofproto_mirror_register(ofproto
, aux
, NULL
);
1337 /* Retrieves statistics from mirror associated with client data pointer
1338 * 'aux' in 'ofproto'. Stores packet and byte counts in 'packets' and
1339 * 'bytes', respectively. If a particular counters is not supported,
1340 * the appropriate argument is set to UINT64_MAX.
1343 ofproto_mirror_get_stats(struct ofproto
*ofproto
, void *aux
,
1344 uint64_t *packets
, uint64_t *bytes
)
1346 if (!ofproto
->ofproto_class
->mirror_get_stats
) {
1347 *packets
= *bytes
= UINT64_MAX
;
1351 return ofproto
->ofproto_class
->mirror_get_stats(ofproto
, aux
,
1355 /* Configures the VLANs whose bits are set to 1 in 'flood_vlans' as VLANs on
1356 * which all packets are flooded, instead of using MAC learning. If
1357 * 'flood_vlans' is NULL, then MAC learning applies to all VLANs.
1359 * Flood VLANs affect only the treatment of packets output to the OFPP_NORMAL
1362 ofproto_set_flood_vlans(struct ofproto
*ofproto
, unsigned long *flood_vlans
)
1364 return (ofproto
->ofproto_class
->set_flood_vlans
1365 ? ofproto
->ofproto_class
->set_flood_vlans(ofproto
, flood_vlans
)
1369 /* Returns true if 'aux' is a registered bundle that is currently in use as the
1370 * output for a mirror. */
1372 ofproto_is_mirror_output_bundle(const struct ofproto
*ofproto
, void *aux
)
1374 return (ofproto
->ofproto_class
->is_mirror_output_bundle
1375 ? ofproto
->ofproto_class
->is_mirror_output_bundle(ofproto
, aux
)
1379 /* Configuration of OpenFlow tables. */
1381 /* Returns the number of OpenFlow tables in 'ofproto'. */
1383 ofproto_get_n_tables(const struct ofproto
*ofproto
)
1385 return ofproto
->n_tables
;
1388 /* Returns the number of Controller visible OpenFlow tables
1389 * in 'ofproto'. This number will exclude Hidden tables.
1390 * This funtion's return value should be less or equal to that of
1391 * ofproto_get_n_tables() . */
1393 ofproto_get_n_visible_tables(const struct ofproto
*ofproto
)
1395 uint8_t n
= ofproto
->n_tables
;
1397 /* Count only non-hidden tables in the number of tables. (Hidden tables,
1398 * if present, are always at the end.) */
1399 while(n
&& (ofproto
->tables
[n
- 1].flags
& OFTABLE_HIDDEN
)) {
1406 /* Configures the OpenFlow table in 'ofproto' with id 'table_id' with the
1407 * settings from 's'. 'table_id' must be in the range 0 through the number of
1408 * OpenFlow tables in 'ofproto' minus 1, inclusive.
1410 * For read-only tables, only the name may be configured. */
1412 ofproto_configure_table(struct ofproto
*ofproto
, int table_id
,
1413 const struct ofproto_table_settings
*s
)
1415 struct oftable
*table
;
1417 ovs_assert(table_id
>= 0 && table_id
< ofproto
->n_tables
);
1418 table
= &ofproto
->tables
[table_id
];
1420 oftable_set_name(table
, s
->name
);
1422 if (table
->flags
& OFTABLE_READONLY
) {
1426 if (classifier_set_prefix_fields(&table
->cls
,
1427 s
->prefix_fields
, s
->n_prefix_fields
)) {
1428 /* XXX: Trigger revalidation. */
1431 ovs_mutex_lock(&ofproto_mutex
);
1433 oftable_enable_eviction(table
, s
->groups
, s
->n_groups
);
1435 oftable_disable_eviction(table
);
1437 table
->max_flows
= s
->max_flows
;
1438 evict_rules_from_table(table
);
1439 ovs_mutex_unlock(&ofproto_mutex
);
1443 ofproto_has_snoops(const struct ofproto
*ofproto
)
1445 return connmgr_has_snoops(ofproto
->connmgr
);
1449 ofproto_get_snoops(const struct ofproto
*ofproto
, struct sset
*snoops
)
1451 connmgr_get_snoops(ofproto
->connmgr
, snoops
);
1454 /* Deletes 'rule' from 'ofproto'.
1456 * Within an ofproto implementation, this function allows an ofproto
1457 * implementation to destroy any rules that remain when its ->destruct()
1458 * function is called. This function is not suitable for use elsewhere in an
1459 * ofproto implementation.
1461 * This function implements steps 4.4 and 4.5 in the section titled "Rule Life
1462 * Cycle" in ofproto-provider.h. */
1464 ofproto_rule_delete(struct ofproto
*ofproto
, struct rule
*rule
)
1465 OVS_EXCLUDED(ofproto_mutex
)
1467 /* This skips the ofmonitor and flow-removed notifications because the
1468 * switch is being deleted and any OpenFlow channels have been or soon will
1470 ovs_mutex_lock(&ofproto_mutex
);
1472 if (!rule
->removed
) {
1473 /* Make sure there is no postponed removal of the rule. */
1474 ovs_assert(cls_rule_visible_in_version(&rule
->cr
, CLS_MAX_VERSION
));
1476 if (!classifier_remove(&rule
->ofproto
->tables
[rule
->table_id
].cls
,
1480 ofproto_rule_remove__(rule
->ofproto
, rule
);
1481 ofproto
->ofproto_class
->rule_delete(rule
);
1482 ofproto_rule_unref(rule
);
1484 ovs_mutex_unlock(&ofproto_mutex
);
1488 ofproto_flush__(struct ofproto
*ofproto
)
1489 OVS_EXCLUDED(ofproto_mutex
)
1491 struct oftable
*table
;
1493 /* This will flush all datapath flows. */
1494 if (ofproto
->ofproto_class
->flush
) {
1495 ofproto
->ofproto_class
->flush(ofproto
);
1498 /* XXX: There is a small race window here, where new datapath flows can be
1499 * created by upcall handlers based on the existing flow table. We can not
1500 * call ofproto class flush while holding 'ofproto_mutex' to prevent this,
1501 * as then we could deadlock on syncing with the handler threads waiting on
1502 * the same mutex. */
1504 ovs_mutex_lock(&ofproto_mutex
);
1505 OFPROTO_FOR_EACH_TABLE (table
, ofproto
) {
1506 struct rule_collection rules
;
1509 if (table
->flags
& OFTABLE_HIDDEN
) {
1513 rule_collection_init(&rules
);
1515 CLS_FOR_EACH (rule
, cr
, &table
->cls
) {
1516 rule_collection_add(&rules
, rule
);
1518 delete_flows__(&rules
, OFPRR_DELETE
, NULL
);
1520 /* XXX: Concurrent handler threads may insert new learned flows based on
1521 * learn actions of the now deleted flows right after we release
1522 * 'ofproto_mutex'. */
1523 ovs_mutex_unlock(&ofproto_mutex
);
1526 static void delete_group(struct ofproto
*ofproto
, uint32_t group_id
);
1529 ofproto_destroy__(struct ofproto
*ofproto
)
1530 OVS_EXCLUDED(ofproto_mutex
)
1532 struct oftable
*table
;
1534 destroy_rule_executes(ofproto
);
1536 guarded_list_destroy(&ofproto
->rule_executes
);
1537 ovs_rwlock_destroy(&ofproto
->groups_rwlock
);
1538 hmap_destroy(&ofproto
->groups
);
1540 hmap_remove(&all_ofprotos
, &ofproto
->hmap_node
);
1541 free(ofproto
->name
);
1542 free(ofproto
->type
);
1543 free(ofproto
->mfr_desc
);
1544 free(ofproto
->hw_desc
);
1545 free(ofproto
->sw_desc
);
1546 free(ofproto
->serial_desc
);
1547 free(ofproto
->dp_desc
);
1548 hmap_destroy(&ofproto
->ports
);
1549 hmap_destroy(&ofproto
->ofport_usage
);
1550 shash_destroy(&ofproto
->port_by_name
);
1551 simap_destroy(&ofproto
->ofp_requests
);
1553 OFPROTO_FOR_EACH_TABLE (table
, ofproto
) {
1554 oftable_destroy(table
);
1556 free(ofproto
->tables
);
1558 ovs_assert(hindex_is_empty(&ofproto
->cookies
));
1559 hindex_destroy(&ofproto
->cookies
);
1561 ovs_assert(hmap_is_empty(&ofproto
->learned_cookies
));
1562 hmap_destroy(&ofproto
->learned_cookies
);
1564 free(ofproto
->vlan_bitmap
);
1566 ofproto
->ofproto_class
->dealloc(ofproto
);
1569 /* Destroying rules is doubly deferred, must have 'ofproto' around for them.
1570 * - 1st we defer the removal of the rules from the classifier
1571 * - 2nd we defer the actual destruction of the rules. */
1573 ofproto_destroy_defer__(struct ofproto
*ofproto
)
1574 OVS_EXCLUDED(ofproto_mutex
)
1576 ovsrcu_postpone(ofproto_destroy__
, ofproto
);
1580 ofproto_destroy(struct ofproto
*p
)
1581 OVS_EXCLUDED(ofproto_mutex
)
1583 struct ofport
*ofport
, *next_ofport
;
1584 struct ofport_usage
*usage
, *next_usage
;
1591 meter_delete(p
, 1, p
->meter_features
.max_meters
);
1592 p
->meter_features
.max_meters
= 0;
1598 HMAP_FOR_EACH_SAFE (ofport
, next_ofport
, hmap_node
, &p
->ports
) {
1599 ofport_destroy(ofport
);
1602 HMAP_FOR_EACH_SAFE (usage
, next_usage
, hmap_node
, &p
->ofport_usage
) {
1603 hmap_remove(&p
->ofport_usage
, &usage
->hmap_node
);
1607 p
->ofproto_class
->destruct(p
);
1609 /* We should not postpone this because it involves deleting a listening
1610 * socket which we may want to reopen soon. 'connmgr' should not be used
1611 * by other threads */
1612 connmgr_destroy(p
->connmgr
);
1614 /* Destroying rules is deferred, must have 'ofproto' around for them. */
1615 ovsrcu_postpone(ofproto_destroy_defer__
, p
);
1618 /* Destroys the datapath with the respective 'name' and 'type'. With the Linux
1619 * kernel datapath, for example, this destroys the datapath in the kernel, and
1620 * with the netdev-based datapath, it tears down the data structures that
1621 * represent the datapath.
1623 * The datapath should not be currently open as an ofproto. */
1625 ofproto_delete(const char *name
, const char *type
)
1627 const struct ofproto_class
*class = ofproto_class_find__(type
);
1628 return (!class ? EAFNOSUPPORT
1629 : !class->del
? EACCES
1630 : class->del(type
, name
));
1634 process_port_change(struct ofproto
*ofproto
, int error
, char *devname
)
1636 if (error
== ENOBUFS
) {
1637 reinit_ports(ofproto
);
1638 } else if (!error
) {
1639 update_port(ofproto
, devname
);
1645 ofproto_type_run(const char *datapath_type
)
1647 const struct ofproto_class
*class;
1650 datapath_type
= ofproto_normalize_type(datapath_type
);
1651 class = ofproto_class_find__(datapath_type
);
1653 error
= class->type_run
? class->type_run(datapath_type
) : 0;
1654 if (error
&& error
!= EAGAIN
) {
1655 VLOG_ERR_RL(&rl
, "%s: type_run failed (%s)",
1656 datapath_type
, ovs_strerror(error
));
1662 ofproto_type_wait(const char *datapath_type
)
1664 const struct ofproto_class
*class;
1666 datapath_type
= ofproto_normalize_type(datapath_type
);
1667 class = ofproto_class_find__(datapath_type
);
1669 if (class->type_wait
) {
1670 class->type_wait(datapath_type
);
1675 ofproto_run(struct ofproto
*p
)
1680 error
= p
->ofproto_class
->run(p
);
1681 if (error
&& error
!= EAGAIN
) {
1682 VLOG_ERR_RL(&rl
, "%s: run failed (%s)", p
->name
, ovs_strerror(error
));
1685 run_rule_executes(p
);
1687 /* Restore the eviction group heap invariant occasionally. */
1688 if (p
->eviction_group_timer
< time_msec()) {
1691 p
->eviction_group_timer
= time_msec() + 1000;
1693 for (i
= 0; i
< p
->n_tables
; i
++) {
1694 struct oftable
*table
= &p
->tables
[i
];
1695 struct eviction_group
*evg
;
1698 if (!table
->eviction_fields
) {
1702 if (table
->n_flows
> 100000) {
1703 static struct vlog_rate_limit count_rl
=
1704 VLOG_RATE_LIMIT_INIT(1, 1);
1705 VLOG_WARN_RL(&count_rl
, "Table %"PRIuSIZE
" has an excessive"
1706 " number of rules: %d", i
, table
->n_flows
);
1709 ovs_mutex_lock(&ofproto_mutex
);
1710 CLS_FOR_EACH (rule
, cr
, &table
->cls
) {
1711 if (rule
->idle_timeout
|| rule
->hard_timeout
) {
1712 if (!rule
->eviction_group
) {
1713 eviction_group_add_rule(rule
);
1715 heap_raw_change(&rule
->evg_node
,
1716 rule_eviction_priority(p
, rule
));
1721 HEAP_FOR_EACH (evg
, size_node
, &table
->eviction_groups_by_size
) {
1722 heap_rebuild(&evg
->rules
);
1724 ovs_mutex_unlock(&ofproto_mutex
);
1728 if (p
->ofproto_class
->port_poll
) {
1731 while ((error
= p
->ofproto_class
->port_poll(p
, &devname
)) != EAGAIN
) {
1732 process_port_change(p
, error
, devname
);
1736 new_seq
= seq_read(connectivity_seq_get());
1737 if (new_seq
!= p
->change_seq
) {
1738 struct sset devnames
;
1739 const char *devname
;
1740 struct ofport
*ofport
;
1742 /* Update OpenFlow port status for any port whose netdev has changed.
1744 * Refreshing a given 'ofport' can cause an arbitrary ofport to be
1745 * destroyed, so it's not safe to update ports directly from the
1746 * HMAP_FOR_EACH loop, or even to use HMAP_FOR_EACH_SAFE. Instead, we
1747 * need this two-phase approach. */
1748 sset_init(&devnames
);
1749 HMAP_FOR_EACH (ofport
, hmap_node
, &p
->ports
) {
1750 uint64_t port_change_seq
;
1752 port_change_seq
= netdev_get_change_seq(ofport
->netdev
);
1753 if (ofport
->change_seq
!= port_change_seq
) {
1754 ofport
->change_seq
= port_change_seq
;
1755 sset_add(&devnames
, netdev_get_name(ofport
->netdev
));
1758 SSET_FOR_EACH (devname
, &devnames
) {
1759 update_port(p
, devname
);
1761 sset_destroy(&devnames
);
1763 p
->change_seq
= new_seq
;
1766 connmgr_run(p
->connmgr
, handle_openflow
);
1772 ofproto_wait(struct ofproto
*p
)
1774 p
->ofproto_class
->wait(p
);
1775 if (p
->ofproto_class
->port_poll_wait
) {
1776 p
->ofproto_class
->port_poll_wait(p
);
1778 seq_wait(connectivity_seq_get(), p
->change_seq
);
1779 connmgr_wait(p
->connmgr
);
1783 ofproto_is_alive(const struct ofproto
*p
)
1785 return connmgr_has_controllers(p
->connmgr
);
1788 /* Adds some memory usage statistics for 'ofproto' into 'usage', for use with
1789 * memory_report(). */
1791 ofproto_get_memory_usage(const struct ofproto
*ofproto
, struct simap
*usage
)
1793 const struct oftable
*table
;
1794 unsigned int n_rules
;
1796 simap_increase(usage
, "ports", hmap_count(&ofproto
->ports
));
1799 OFPROTO_FOR_EACH_TABLE (table
, ofproto
) {
1800 n_rules
+= table
->n_flows
;
1802 simap_increase(usage
, "rules", n_rules
);
1804 if (ofproto
->ofproto_class
->get_memory_usage
) {
1805 ofproto
->ofproto_class
->get_memory_usage(ofproto
, usage
);
1808 connmgr_get_memory_usage(ofproto
->connmgr
, usage
);
1812 ofproto_type_get_memory_usage(const char *datapath_type
, struct simap
*usage
)
1814 const struct ofproto_class
*class;
1816 datapath_type
= ofproto_normalize_type(datapath_type
);
1817 class = ofproto_class_find__(datapath_type
);
1819 if (class && class->type_get_memory_usage
) {
1820 class->type_get_memory_usage(datapath_type
, usage
);
1825 ofproto_get_ofproto_controller_info(const struct ofproto
*ofproto
,
1828 connmgr_get_controller_info(ofproto
->connmgr
, info
);
1832 ofproto_free_ofproto_controller_info(struct shash
*info
)
1834 connmgr_free_controller_info(info
);
1837 /* Makes a deep copy of 'old' into 'port'. */
1839 ofproto_port_clone(struct ofproto_port
*port
, const struct ofproto_port
*old
)
1841 port
->name
= xstrdup(old
->name
);
1842 port
->type
= xstrdup(old
->type
);
1843 port
->ofp_port
= old
->ofp_port
;
1846 /* Frees memory allocated to members of 'ofproto_port'.
1848 * Do not call this function on an ofproto_port obtained from
1849 * ofproto_port_dump_next(): that function retains ownership of the data in the
1852 ofproto_port_destroy(struct ofproto_port
*ofproto_port
)
1854 free(ofproto_port
->name
);
1855 free(ofproto_port
->type
);
1858 /* Initializes 'dump' to begin dumping the ports in an ofproto.
1860 * This function provides no status indication. An error status for the entire
1861 * dump operation is provided when it is completed by calling
1862 * ofproto_port_dump_done().
1865 ofproto_port_dump_start(struct ofproto_port_dump
*dump
,
1866 const struct ofproto
*ofproto
)
1868 dump
->ofproto
= ofproto
;
1869 dump
->error
= ofproto
->ofproto_class
->port_dump_start(ofproto
,
1873 /* Attempts to retrieve another port from 'dump', which must have been created
1874 * with ofproto_port_dump_start(). On success, stores a new ofproto_port into
1875 * 'port' and returns true. On failure, returns false.
1877 * Failure might indicate an actual error or merely that the last port has been
1878 * dumped. An error status for the entire dump operation is provided when it
1879 * is completed by calling ofproto_port_dump_done().
1881 * The ofproto owns the data stored in 'port'. It will remain valid until at
1882 * least the next time 'dump' is passed to ofproto_port_dump_next() or
1883 * ofproto_port_dump_done(). */
1885 ofproto_port_dump_next(struct ofproto_port_dump
*dump
,
1886 struct ofproto_port
*port
)
1888 const struct ofproto
*ofproto
= dump
->ofproto
;
1894 dump
->error
= ofproto
->ofproto_class
->port_dump_next(ofproto
, dump
->state
,
1897 ofproto
->ofproto_class
->port_dump_done(ofproto
, dump
->state
);
1903 /* Completes port table dump operation 'dump', which must have been created
1904 * with ofproto_port_dump_start(). Returns 0 if the dump operation was
1905 * error-free, otherwise a positive errno value describing the problem. */
1907 ofproto_port_dump_done(struct ofproto_port_dump
*dump
)
1909 const struct ofproto
*ofproto
= dump
->ofproto
;
1911 dump
->error
= ofproto
->ofproto_class
->port_dump_done(ofproto
,
1914 return dump
->error
== EOF
? 0 : dump
->error
;
1917 /* Returns the type to pass to netdev_open() when a datapath of type
1918 * 'datapath_type' has a port of type 'port_type', for a few special
1919 * cases when a netdev type differs from a port type. For example, when
1920 * using the userspace datapath, a port of type "internal" needs to be
1923 * Returns either 'type' itself or a string literal, which must not be
1926 ofproto_port_open_type(const char *datapath_type
, const char *port_type
)
1928 const struct ofproto_class
*class;
1930 datapath_type
= ofproto_normalize_type(datapath_type
);
1931 class = ofproto_class_find__(datapath_type
);
1936 return (class->port_open_type
1937 ? class->port_open_type(datapath_type
, port_type
)
1941 /* Attempts to add 'netdev' as a port on 'ofproto'. If 'ofp_portp' is
1942 * non-null and '*ofp_portp' is not OFPP_NONE, attempts to use that as
1943 * the port's OpenFlow port number.
1945 * If successful, returns 0 and sets '*ofp_portp' to the new port's
1946 * OpenFlow port number (if 'ofp_portp' is non-null). On failure,
1947 * returns a positive errno value and sets '*ofp_portp' to OFPP_NONE (if
1948 * 'ofp_portp' is non-null). */
1950 ofproto_port_add(struct ofproto
*ofproto
, struct netdev
*netdev
,
1951 ofp_port_t
*ofp_portp
)
1953 ofp_port_t ofp_port
= ofp_portp
? *ofp_portp
: OFPP_NONE
;
1956 error
= ofproto
->ofproto_class
->port_add(ofproto
, netdev
);
1958 const char *netdev_name
= netdev_get_name(netdev
);
1960 simap_put(&ofproto
->ofp_requests
, netdev_name
,
1961 ofp_to_u16(ofp_port
));
1962 update_port(ofproto
, netdev_name
);
1965 *ofp_portp
= OFPP_NONE
;
1967 struct ofproto_port ofproto_port
;
1969 error
= ofproto_port_query_by_name(ofproto
,
1970 netdev_get_name(netdev
),
1973 *ofp_portp
= ofproto_port
.ofp_port
;
1974 ofproto_port_destroy(&ofproto_port
);
1981 /* Looks up a port named 'devname' in 'ofproto'. On success, returns 0 and
1982 * initializes '*port' appropriately; on failure, returns a positive errno
1985 * The caller owns the data in 'ofproto_port' and must free it with
1986 * ofproto_port_destroy() when it is no longer needed. */
1988 ofproto_port_query_by_name(const struct ofproto
*ofproto
, const char *devname
,
1989 struct ofproto_port
*port
)
1993 error
= ofproto
->ofproto_class
->port_query_by_name(ofproto
, devname
, port
);
1995 memset(port
, 0, sizeof *port
);
2000 /* Deletes port number 'ofp_port' from the datapath for 'ofproto'.
2001 * Returns 0 if successful, otherwise a positive errno. */
2003 ofproto_port_del(struct ofproto
*ofproto
, ofp_port_t ofp_port
)
2005 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
2006 const char *name
= ofport
? netdev_get_name(ofport
->netdev
) : "<unknown>";
2007 struct simap_node
*ofp_request_node
;
2010 ofp_request_node
= simap_find(&ofproto
->ofp_requests
, name
);
2011 if (ofp_request_node
) {
2012 simap_delete(&ofproto
->ofp_requests
, ofp_request_node
);
2015 error
= ofproto
->ofproto_class
->port_del(ofproto
, ofp_port
);
2016 if (!error
&& ofport
) {
2017 /* 'name' is the netdev's name and update_port() is going to close the
2018 * netdev. Just in case update_port() refers to 'name' after it
2019 * destroys 'ofport', make a copy of it around the update_port()
2021 char *devname
= xstrdup(name
);
2022 update_port(ofproto
, devname
);
2029 flow_mod_init(struct ofputil_flow_mod
*fm
,
2030 const struct match
*match
, int priority
,
2031 const struct ofpact
*ofpacts
, size_t ofpacts_len
,
2032 enum ofp_flow_mod_command command
)
2034 memset(fm
, 0, sizeof *fm
);
2036 fm
->priority
= priority
;
2039 fm
->modify_cookie
= false;
2041 fm
->command
= command
;
2042 fm
->idle_timeout
= 0;
2043 fm
->hard_timeout
= 0;
2045 fm
->buffer_id
= UINT32_MAX
;
2046 fm
->out_port
= OFPP_ANY
;
2047 fm
->out_group
= OFPG_ANY
;
2049 fm
->ofpacts
= CONST_CAST(struct ofpact
*, ofpacts
);
2050 fm
->ofpacts_len
= ofpacts_len
;
2051 fm
->delete_reason
= OFPRR_DELETE
;
2055 simple_flow_mod(struct ofproto
*ofproto
,
2056 const struct match
*match
, int priority
,
2057 const struct ofpact
*ofpacts
, size_t ofpacts_len
,
2058 enum ofp_flow_mod_command command
)
2060 struct ofputil_flow_mod fm
;
2062 flow_mod_init(&fm
, match
, priority
, ofpacts
, ofpacts_len
, command
);
2064 return handle_flow_mod__(ofproto
, &fm
, NULL
);
2067 /* Adds a flow to OpenFlow flow table 0 in 'p' that matches 'cls_rule' and
2068 * performs the 'n_actions' actions in 'actions'. The new flow will not
2071 * If cls_rule->priority is in the range of priorities supported by OpenFlow
2072 * (0...65535, inclusive) then the flow will be visible to OpenFlow
2073 * controllers; otherwise, it will be hidden.
2075 * The caller retains ownership of 'cls_rule' and 'ofpacts'.
2077 * This is a helper function for in-band control and fail-open. */
2079 ofproto_add_flow(struct ofproto
*ofproto
, const struct match
*match
,
2081 const struct ofpact
*ofpacts
, size_t ofpacts_len
)
2082 OVS_EXCLUDED(ofproto_mutex
)
2084 const struct rule
*rule
;
2087 /* First do a cheap check whether the rule we're looking for already exists
2088 * with the actions that we want. If it does, then we're done. */
2089 rule
= rule_from_cls_rule(classifier_find_match_exactly(
2090 &ofproto
->tables
[0].cls
, match
, priority
,
2093 const struct rule_actions
*actions
= rule_get_actions(rule
);
2094 must_add
= !ofpacts_equal(actions
->ofpacts
, actions
->ofpacts_len
,
2095 ofpacts
, ofpacts_len
);
2100 /* If there's no such rule or the rule doesn't have the actions we want,
2101 * fall back to a executing a full flow mod. We can't optimize this at
2102 * all because we didn't take enough locks above to ensure that the flow
2103 * table didn't already change beneath us. */
2105 simple_flow_mod(ofproto
, match
, priority
, ofpacts
, ofpacts_len
,
2106 OFPFC_MODIFY_STRICT
);
2110 /* Executes the flow modification specified in 'fm'. Returns 0 on success, or
2111 * an OFPERR_* OpenFlow error code on failure.
2113 * This is a helper function for in-band control and fail-open and the "learn"
2116 ofproto_flow_mod(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
)
2117 OVS_EXCLUDED(ofproto_mutex
)
2119 /* Optimize for the most common case of a repeated learn action.
2120 * If an identical flow already exists we only need to update its
2121 * 'modified' time. */
2122 if (fm
->command
== OFPFC_MODIFY_STRICT
&& fm
->table_id
!= OFPTT_ALL
2123 && !(fm
->flags
& OFPUTIL_FF_RESET_COUNTS
)) {
2124 struct oftable
*table
= &ofproto
->tables
[fm
->table_id
];
2128 rule
= rule_from_cls_rule(classifier_find_match_exactly(
2129 &table
->cls
, &fm
->match
, fm
->priority
,
2132 /* Reading many of the rule fields and writing on 'modified'
2133 * requires the rule->mutex. Also, rule->actions may change
2134 * if rule->mutex is not held. */
2135 const struct rule_actions
*actions
;
2137 ovs_mutex_lock(&rule
->mutex
);
2138 actions
= rule_get_actions(rule
);
2139 if (rule
->idle_timeout
== fm
->idle_timeout
2140 && rule
->hard_timeout
== fm
->hard_timeout
2141 && rule
->importance
== fm
->importance
2142 && rule
->flags
== (fm
->flags
& OFPUTIL_FF_STATE
)
2143 && (!fm
->modify_cookie
|| (fm
->new_cookie
== rule
->flow_cookie
))
2144 && ofpacts_equal(fm
->ofpacts
, fm
->ofpacts_len
,
2145 actions
->ofpacts
, actions
->ofpacts_len
)) {
2146 /* Rule already exists and need not change, only update the
2147 modified timestamp. */
2148 rule
->modified
= time_msec();
2151 ovs_mutex_unlock(&rule
->mutex
);
2159 return handle_flow_mod__(ofproto
, fm
, NULL
);
2162 /* Searches for a rule with matching criteria exactly equal to 'target' in
2163 * ofproto's table 0 and, if it finds one, deletes it.
2165 * This is a helper function for in-band control and fail-open. */
2167 ofproto_delete_flow(struct ofproto
*ofproto
,
2168 const struct match
*target
, int priority
)
2169 OVS_EXCLUDED(ofproto_mutex
)
2171 struct classifier
*cls
= &ofproto
->tables
[0].cls
;
2174 /* First do a cheap check whether the rule we're looking for has already
2175 * been deleted. If so, then we're done. */
2176 rule
= rule_from_cls_rule(classifier_find_match_exactly(
2177 cls
, target
, priority
, CLS_MAX_VERSION
));
2182 /* Execute a flow mod. We can't optimize this at all because we didn't
2183 * take enough locks above to ensure that the flow table didn't already
2184 * change beneath us. */
2185 simple_flow_mod(ofproto
, target
, priority
, NULL
, 0, OFPFC_DELETE_STRICT
);
2188 /* Delete all of the flows from all of ofproto's flow tables, then reintroduce
2189 * the flows required by in-band control and fail-open. */
2191 ofproto_flush_flows(struct ofproto
*ofproto
)
2193 COVERAGE_INC(ofproto_flush
);
2194 ofproto_flush__(ofproto
);
2195 connmgr_flushed(ofproto
->connmgr
);
2199 reinit_ports(struct ofproto
*p
)
2201 struct ofproto_port_dump dump
;
2202 struct sset devnames
;
2203 struct ofport
*ofport
;
2204 struct ofproto_port ofproto_port
;
2205 const char *devname
;
2207 COVERAGE_INC(ofproto_reinit_ports
);
2209 sset_init(&devnames
);
2210 HMAP_FOR_EACH (ofport
, hmap_node
, &p
->ports
) {
2211 sset_add(&devnames
, netdev_get_name(ofport
->netdev
));
2213 OFPROTO_PORT_FOR_EACH (&ofproto_port
, &dump
, p
) {
2214 sset_add(&devnames
, ofproto_port
.name
);
2217 SSET_FOR_EACH (devname
, &devnames
) {
2218 update_port(p
, devname
);
2220 sset_destroy(&devnames
);
2224 alloc_ofp_port(struct ofproto
*ofproto
, const char *netdev_name
)
2228 port_idx
= simap_get(&ofproto
->ofp_requests
, netdev_name
);
2229 port_idx
= port_idx
? port_idx
: UINT16_MAX
;
2231 if (port_idx
>= ofproto
->max_ports
2232 || ofport_get_usage(ofproto
, u16_to_ofp(port_idx
)) == LLONG_MAX
) {
2233 uint16_t lru_ofport
= 0, end_port_no
= ofproto
->alloc_port_no
;
2234 long long int last_used_at
, lru
= LLONG_MAX
;
2236 /* Search for a free OpenFlow port number. We try not to
2237 * immediately reuse them to prevent problems due to old
2240 * We limit the automatically assigned port numbers to the lower half
2241 * of the port range, to reserve the upper half for assignment by
2244 if (++ofproto
->alloc_port_no
>= MIN(ofproto
->max_ports
, 32768)) {
2245 ofproto
->alloc_port_no
= 1;
2247 last_used_at
= ofport_get_usage(ofproto
,
2248 u16_to_ofp(ofproto
->alloc_port_no
));
2249 if (!last_used_at
) {
2250 port_idx
= ofproto
->alloc_port_no
;
2252 } else if ( last_used_at
< time_msec() - 60*60*1000) {
2253 /* If the port with ofport 'ofproto->alloc_port_no' was deleted
2254 * more than an hour ago, consider it usable. */
2255 ofport_remove_usage(ofproto
,
2256 u16_to_ofp(ofproto
->alloc_port_no
));
2257 port_idx
= ofproto
->alloc_port_no
;
2259 } else if (last_used_at
< lru
) {
2261 lru_ofport
= ofproto
->alloc_port_no
;
2264 if (ofproto
->alloc_port_no
== end_port_no
) {
2266 port_idx
= lru_ofport
;
2273 ofport_set_usage(ofproto
, u16_to_ofp(port_idx
), LLONG_MAX
);
2274 return u16_to_ofp(port_idx
);
2278 dealloc_ofp_port(struct ofproto
*ofproto
, ofp_port_t ofp_port
)
2280 if (ofp_to_u16(ofp_port
) < ofproto
->max_ports
) {
2281 ofport_set_usage(ofproto
, ofp_port
, time_msec());
2285 /* Opens and returns a netdev for 'ofproto_port' in 'ofproto', or a null
2286 * pointer if the netdev cannot be opened. On success, also fills in
2288 static struct netdev
*
2289 ofport_open(struct ofproto
*ofproto
,
2290 struct ofproto_port
*ofproto_port
,
2291 struct ofputil_phy_port
*pp
)
2293 enum netdev_flags flags
;
2294 struct netdev
*netdev
;
2297 error
= netdev_open(ofproto_port
->name
, ofproto_port
->type
, &netdev
);
2299 VLOG_WARN_RL(&rl
, "%s: ignoring port %s (%"PRIu16
") because netdev %s "
2300 "cannot be opened (%s)",
2302 ofproto_port
->name
, ofproto_port
->ofp_port
,
2303 ofproto_port
->name
, ovs_strerror(error
));
2307 if (ofproto_port
->ofp_port
== OFPP_NONE
) {
2308 if (!strcmp(ofproto
->name
, ofproto_port
->name
)) {
2309 ofproto_port
->ofp_port
= OFPP_LOCAL
;
2311 ofproto_port
->ofp_port
= alloc_ofp_port(ofproto
,
2312 ofproto_port
->name
);
2315 pp
->port_no
= ofproto_port
->ofp_port
;
2316 netdev_get_etheraddr(netdev
, pp
->hw_addr
);
2317 ovs_strlcpy(pp
->name
, ofproto_port
->name
, sizeof pp
->name
);
2318 netdev_get_flags(netdev
, &flags
);
2319 pp
->config
= flags
& NETDEV_UP
? 0 : OFPUTIL_PC_PORT_DOWN
;
2320 pp
->state
= netdev_get_carrier(netdev
) ? 0 : OFPUTIL_PS_LINK_DOWN
;
2321 netdev_get_features(netdev
, &pp
->curr
, &pp
->advertised
,
2322 &pp
->supported
, &pp
->peer
);
2323 pp
->curr_speed
= netdev_features_to_bps(pp
->curr
, 0) / 1000;
2324 pp
->max_speed
= netdev_features_to_bps(pp
->supported
, 0) / 1000;
2329 /* Returns true if most fields of 'a' and 'b' are equal. Differences in name,
2330 * port number, and 'config' bits other than OFPUTIL_PC_PORT_DOWN are
2333 ofport_equal(const struct ofputil_phy_port
*a
,
2334 const struct ofputil_phy_port
*b
)
2336 return (eth_addr_equals(a
->hw_addr
, b
->hw_addr
)
2337 && a
->state
== b
->state
2338 && !((a
->config
^ b
->config
) & OFPUTIL_PC_PORT_DOWN
)
2339 && a
->curr
== b
->curr
2340 && a
->advertised
== b
->advertised
2341 && a
->supported
== b
->supported
2342 && a
->peer
== b
->peer
2343 && a
->curr_speed
== b
->curr_speed
2344 && a
->max_speed
== b
->max_speed
);
2347 /* Adds an ofport to 'p' initialized based on the given 'netdev' and 'opp'.
2348 * The caller must ensure that 'p' does not have a conflicting ofport (that is,
2349 * one with the same name or port number). */
2351 ofport_install(struct ofproto
*p
,
2352 struct netdev
*netdev
, const struct ofputil_phy_port
*pp
)
2354 const char *netdev_name
= netdev_get_name(netdev
);
2355 struct ofport
*ofport
;
2358 /* Create ofport. */
2359 ofport
= p
->ofproto_class
->port_alloc();
2364 ofport
->ofproto
= p
;
2365 ofport
->netdev
= netdev
;
2366 ofport
->change_seq
= netdev_get_change_seq(netdev
);
2368 ofport
->ofp_port
= pp
->port_no
;
2369 ofport
->created
= time_msec();
2371 /* Add port to 'p'. */
2372 hmap_insert(&p
->ports
, &ofport
->hmap_node
,
2373 hash_ofp_port(ofport
->ofp_port
));
2374 shash_add(&p
->port_by_name
, netdev_name
, ofport
);
2376 update_mtu(p
, ofport
);
2378 /* Let the ofproto_class initialize its private data. */
2379 error
= p
->ofproto_class
->port_construct(ofport
);
2383 connmgr_send_port_status(p
->connmgr
, NULL
, pp
, OFPPR_ADD
);
2387 VLOG_WARN_RL(&rl
, "%s: could not add port %s (%s)",
2388 p
->name
, netdev_name
, ovs_strerror(error
));
2390 ofport_destroy__(ofport
);
2392 netdev_close(netdev
);
2396 /* Removes 'ofport' from 'p' and destroys it. */
2398 ofport_remove(struct ofport
*ofport
)
2400 connmgr_send_port_status(ofport
->ofproto
->connmgr
, NULL
, &ofport
->pp
,
2402 ofport_destroy(ofport
);
2405 /* If 'ofproto' contains an ofport named 'name', removes it from 'ofproto' and
2408 ofport_remove_with_name(struct ofproto
*ofproto
, const char *name
)
2410 struct ofport
*port
= shash_find_data(&ofproto
->port_by_name
, name
);
2412 ofport_remove(port
);
2416 /* Updates 'port' with new 'pp' description.
2418 * Does not handle a name or port number change. The caller must implement
2419 * such a change as a delete followed by an add. */
2421 ofport_modified(struct ofport
*port
, struct ofputil_phy_port
*pp
)
2423 memcpy(port
->pp
.hw_addr
, pp
->hw_addr
, ETH_ADDR_LEN
);
2424 port
->pp
.config
= ((port
->pp
.config
& ~OFPUTIL_PC_PORT_DOWN
)
2425 | (pp
->config
& OFPUTIL_PC_PORT_DOWN
));
2426 port
->pp
.state
= ((port
->pp
.state
& ~OFPUTIL_PS_LINK_DOWN
)
2427 | (pp
->state
& OFPUTIL_PS_LINK_DOWN
));
2428 port
->pp
.curr
= pp
->curr
;
2429 port
->pp
.advertised
= pp
->advertised
;
2430 port
->pp
.supported
= pp
->supported
;
2431 port
->pp
.peer
= pp
->peer
;
2432 port
->pp
.curr_speed
= pp
->curr_speed
;
2433 port
->pp
.max_speed
= pp
->max_speed
;
2435 connmgr_send_port_status(port
->ofproto
->connmgr
, NULL
,
2436 &port
->pp
, OFPPR_MODIFY
);
2439 /* Update OpenFlow 'state' in 'port' and notify controller. */
2441 ofproto_port_set_state(struct ofport
*port
, enum ofputil_port_state state
)
2443 if (port
->pp
.state
!= state
) {
2444 port
->pp
.state
= state
;
2445 connmgr_send_port_status(port
->ofproto
->connmgr
, NULL
,
2446 &port
->pp
, OFPPR_MODIFY
);
2451 ofproto_port_unregister(struct ofproto
*ofproto
, ofp_port_t ofp_port
)
2453 struct ofport
*port
= ofproto_get_port(ofproto
, ofp_port
);
2455 if (port
->ofproto
->ofproto_class
->set_realdev
) {
2456 port
->ofproto
->ofproto_class
->set_realdev(port
, 0, 0);
2458 if (port
->ofproto
->ofproto_class
->set_stp_port
) {
2459 port
->ofproto
->ofproto_class
->set_stp_port(port
, NULL
);
2461 if (port
->ofproto
->ofproto_class
->set_rstp_port
) {
2462 port
->ofproto
->ofproto_class
->set_rstp_port(port
, NULL
);
2464 if (port
->ofproto
->ofproto_class
->set_cfm
) {
2465 port
->ofproto
->ofproto_class
->set_cfm(port
, NULL
);
2467 if (port
->ofproto
->ofproto_class
->bundle_remove
) {
2468 port
->ofproto
->ofproto_class
->bundle_remove(port
);
2474 ofport_destroy__(struct ofport
*port
)
2476 struct ofproto
*ofproto
= port
->ofproto
;
2477 const char *name
= netdev_get_name(port
->netdev
);
2479 hmap_remove(&ofproto
->ports
, &port
->hmap_node
);
2480 shash_delete(&ofproto
->port_by_name
,
2481 shash_find(&ofproto
->port_by_name
, name
));
2483 netdev_close(port
->netdev
);
2484 ofproto
->ofproto_class
->port_dealloc(port
);
2488 ofport_destroy(struct ofport
*port
)
2491 dealloc_ofp_port(port
->ofproto
, port
->ofp_port
);
2492 port
->ofproto
->ofproto_class
->port_destruct(port
);
2493 ofport_destroy__(port
);
2498 ofproto_get_port(const struct ofproto
*ofproto
, ofp_port_t ofp_port
)
2500 struct ofport
*port
;
2502 HMAP_FOR_EACH_IN_BUCKET (port
, hmap_node
, hash_ofp_port(ofp_port
),
2504 if (port
->ofp_port
== ofp_port
) {
2511 static long long int
2512 ofport_get_usage(const struct ofproto
*ofproto
, ofp_port_t ofp_port
)
2514 struct ofport_usage
*usage
;
2516 HMAP_FOR_EACH_IN_BUCKET (usage
, hmap_node
, hash_ofp_port(ofp_port
),
2517 &ofproto
->ofport_usage
) {
2518 if (usage
->ofp_port
== ofp_port
) {
2519 return usage
->last_used
;
2526 ofport_set_usage(struct ofproto
*ofproto
, ofp_port_t ofp_port
,
2527 long long int last_used
)
2529 struct ofport_usage
*usage
;
2530 HMAP_FOR_EACH_IN_BUCKET (usage
, hmap_node
, hash_ofp_port(ofp_port
),
2531 &ofproto
->ofport_usage
) {
2532 if (usage
->ofp_port
== ofp_port
) {
2533 usage
->last_used
= last_used
;
2537 ovs_assert(last_used
== LLONG_MAX
);
2539 usage
= xmalloc(sizeof *usage
);
2540 usage
->ofp_port
= ofp_port
;
2541 usage
->last_used
= last_used
;
2542 hmap_insert(&ofproto
->ofport_usage
, &usage
->hmap_node
,
2543 hash_ofp_port(ofp_port
));
2547 ofport_remove_usage(struct ofproto
*ofproto
, ofp_port_t ofp_port
)
2549 struct ofport_usage
*usage
;
2550 HMAP_FOR_EACH_IN_BUCKET (usage
, hmap_node
, hash_ofp_port(ofp_port
),
2551 &ofproto
->ofport_usage
) {
2552 if (usage
->ofp_port
== ofp_port
) {
2553 hmap_remove(&ofproto
->ofport_usage
, &usage
->hmap_node
);
2561 ofproto_port_get_stats(const struct ofport
*port
, struct netdev_stats
*stats
)
2563 struct ofproto
*ofproto
= port
->ofproto
;
2566 if (ofproto
->ofproto_class
->port_get_stats
) {
2567 error
= ofproto
->ofproto_class
->port_get_stats(port
, stats
);
2576 update_port(struct ofproto
*ofproto
, const char *name
)
2578 struct ofproto_port ofproto_port
;
2579 struct ofputil_phy_port pp
;
2580 struct netdev
*netdev
;
2581 struct ofport
*port
;
2583 COVERAGE_INC(ofproto_update_port
);
2585 /* Fetch 'name''s location and properties from the datapath. */
2586 netdev
= (!ofproto_port_query_by_name(ofproto
, name
, &ofproto_port
)
2587 ? ofport_open(ofproto
, &ofproto_port
, &pp
)
2591 port
= ofproto_get_port(ofproto
, ofproto_port
.ofp_port
);
2592 if (port
&& !strcmp(netdev_get_name(port
->netdev
), name
)) {
2593 struct netdev
*old_netdev
= port
->netdev
;
2595 /* 'name' hasn't changed location. Any properties changed? */
2596 if (!ofport_equal(&port
->pp
, &pp
)) {
2597 ofport_modified(port
, &pp
);
2600 update_mtu(ofproto
, port
);
2602 /* Install the newly opened netdev in case it has changed.
2603 * Don't close the old netdev yet in case port_modified has to
2604 * remove a retained reference to it.*/
2605 port
->netdev
= netdev
;
2606 port
->change_seq
= netdev_get_change_seq(netdev
);
2608 if (port
->ofproto
->ofproto_class
->port_modified
) {
2609 port
->ofproto
->ofproto_class
->port_modified(port
);
2612 netdev_close(old_netdev
);
2614 /* If 'port' is nonnull then its name differs from 'name' and thus
2615 * we should delete it. If we think there's a port named 'name'
2616 * then its port number must be wrong now so delete it too. */
2618 ofport_remove(port
);
2620 ofport_remove_with_name(ofproto
, name
);
2621 ofport_install(ofproto
, netdev
, &pp
);
2624 /* Any port named 'name' is gone now. */
2625 ofport_remove_with_name(ofproto
, name
);
2627 ofproto_port_destroy(&ofproto_port
);
2631 init_ports(struct ofproto
*p
)
2633 struct ofproto_port_dump dump
;
2634 struct ofproto_port ofproto_port
;
2635 struct shash_node
*node
, *next
;
2637 OFPROTO_PORT_FOR_EACH (&ofproto_port
, &dump
, p
) {
2638 const char *name
= ofproto_port
.name
;
2640 if (shash_find(&p
->port_by_name
, name
)) {
2641 VLOG_WARN_RL(&rl
, "%s: ignoring duplicate device %s in datapath",
2644 struct ofputil_phy_port pp
;
2645 struct netdev
*netdev
;
2647 /* Check if an OpenFlow port number had been requested. */
2648 node
= shash_find(&init_ofp_ports
, name
);
2650 const struct iface_hint
*iface_hint
= node
->data
;
2651 simap_put(&p
->ofp_requests
, name
,
2652 ofp_to_u16(iface_hint
->ofp_port
));
2655 netdev
= ofport_open(p
, &ofproto_port
, &pp
);
2657 ofport_install(p
, netdev
, &pp
);
2658 if (ofp_to_u16(ofproto_port
.ofp_port
) < p
->max_ports
) {
2659 p
->alloc_port_no
= MAX(p
->alloc_port_no
,
2660 ofp_to_u16(ofproto_port
.ofp_port
));
2666 SHASH_FOR_EACH_SAFE(node
, next
, &init_ofp_ports
) {
2667 struct iface_hint
*iface_hint
= node
->data
;
2669 if (!strcmp(iface_hint
->br_name
, p
->name
)) {
2670 free(iface_hint
->br_name
);
2671 free(iface_hint
->br_type
);
2673 shash_delete(&init_ofp_ports
, node
);
2680 /* Find the minimum MTU of all non-datapath devices attached to 'p'.
2681 * Returns ETH_PAYLOAD_MAX or the minimum of the ports. */
2683 find_min_mtu(struct ofproto
*p
)
2685 struct ofport
*ofport
;
2688 HMAP_FOR_EACH (ofport
, hmap_node
, &p
->ports
) {
2689 struct netdev
*netdev
= ofport
->netdev
;
2692 /* Skip any internal ports, since that's what we're trying to
2694 if (!strcmp(netdev_get_type(netdev
), "internal")) {
2698 if (netdev_get_mtu(netdev
, &dev_mtu
)) {
2701 if (!mtu
|| dev_mtu
< mtu
) {
2706 return mtu
? mtu
: ETH_PAYLOAD_MAX
;
2709 /* Update MTU of all datapath devices on 'p' to the minimum of the
2710 * non-datapath ports in event of 'port' added or changed. */
2712 update_mtu(struct ofproto
*p
, struct ofport
*port
)
2714 struct ofport
*ofport
;
2715 struct netdev
*netdev
= port
->netdev
;
2716 int dev_mtu
, old_min
;
2718 if (netdev_get_mtu(netdev
, &dev_mtu
)) {
2722 if (!strcmp(netdev_get_type(port
->netdev
), "internal")) {
2723 if (dev_mtu
> p
->min_mtu
) {
2724 if (!netdev_set_mtu(port
->netdev
, p
->min_mtu
)) {
2725 dev_mtu
= p
->min_mtu
;
2728 port
->mtu
= dev_mtu
;
2732 /* For non-internal port find new min mtu. */
2733 old_min
= p
->min_mtu
;
2734 port
->mtu
= dev_mtu
;
2735 p
->min_mtu
= find_min_mtu(p
);
2736 if (p
->min_mtu
== old_min
) {
2740 HMAP_FOR_EACH (ofport
, hmap_node
, &p
->ports
) {
2741 struct netdev
*netdev
= ofport
->netdev
;
2743 if (!strcmp(netdev_get_type(netdev
), "internal")) {
2744 if (!netdev_set_mtu(netdev
, p
->min_mtu
)) {
2745 ofport
->mtu
= p
->min_mtu
;
2752 ofproto_rule_destroy__(struct rule
*rule
)
2753 OVS_NO_THREAD_SAFETY_ANALYSIS
2755 cls_rule_destroy(CONST_CAST(struct cls_rule
*, &rule
->cr
));
2756 rule_actions_destroy(rule_get_actions(rule
));
2757 ovs_mutex_destroy(&rule
->mutex
);
2758 rule
->ofproto
->ofproto_class
->rule_dealloc(rule
);
2762 rule_destroy_cb(struct rule
*rule
)
2763 OVS_NO_THREAD_SAFETY_ANALYSIS
2765 /* Send rule removed if needed. */
2766 if (rule
->flags
& OFPUTIL_FF_SEND_FLOW_REM
2767 && rule
->removed_reason
!= OVS_OFPRR_NONE
2768 && !rule_is_hidden(rule
)) {
2769 ofproto_rule_send_removed(rule
);
2771 rule
->ofproto
->ofproto_class
->rule_destruct(rule
);
2772 ofproto_rule_destroy__(rule
);
2776 ofproto_rule_ref(struct rule
*rule
)
2779 ovs_refcount_ref(&rule
->ref_count
);
2784 ofproto_rule_try_ref(struct rule
*rule
)
2787 return ovs_refcount_try_ref_rcu(&rule
->ref_count
);
2792 /* Decrements 'rule''s ref_count and schedules 'rule' to be destroyed if the
2793 * ref_count reaches 0.
2795 * Use of RCU allows short term use (between RCU quiescent periods) without
2796 * keeping a reference. A reference must be taken if the rule needs to
2797 * stay around accross the RCU quiescent periods. */
2799 ofproto_rule_unref(struct rule
*rule
)
2801 if (rule
&& ovs_refcount_unref_relaxed(&rule
->ref_count
) == 1) {
2802 ovsrcu_postpone(rule_destroy_cb
, rule
);
2807 remove_rule_rcu__(struct rule
*rule
)
2808 OVS_REQUIRES(ofproto_mutex
)
2810 struct ofproto
*ofproto
= rule
->ofproto
;
2811 struct oftable
*table
= &ofproto
->tables
[rule
->table_id
];
2813 ovs_assert(!cls_rule_visible_in_version(&rule
->cr
, CLS_MAX_VERSION
));
2814 if (!classifier_remove(&table
->cls
, &rule
->cr
)) {
2817 ofproto
->ofproto_class
->rule_delete(rule
);
2818 ofproto_rule_unref(rule
);
2822 remove_rule_rcu(struct rule
*rule
)
2823 OVS_EXCLUDED(ofproto_mutex
)
2825 ovs_mutex_lock(&ofproto_mutex
);
2826 remove_rule_rcu__(rule
);
2827 ovs_mutex_unlock(&ofproto_mutex
);
2830 /* Removes and deletes rules from a NULL-terminated array of rule pointers. */
2832 remove_rules_rcu(struct rule
**rules
)
2833 OVS_EXCLUDED(ofproto_mutex
)
2835 struct rule
**orig_rules
= rules
;
2838 struct ofproto
*ofproto
= rules
[0]->ofproto
;
2839 unsigned long tables
[BITMAP_N_LONGS(256)];
2843 memset(tables
, 0, sizeof tables
);
2845 ovs_mutex_lock(&ofproto_mutex
);
2846 while ((rule
= *rules
++)) {
2847 /* Defer once for each new table. This defers the subtable cleanup
2848 * until later, so that when removing large number of flows the
2849 * operation is faster. */
2850 if (!bitmap_is_set(tables
, rule
->table_id
)) {
2851 struct classifier
*cls
= &ofproto
->tables
[rule
->table_id
].cls
;
2853 bitmap_set1(tables
, rule
->table_id
);
2854 classifier_defer(cls
);
2856 remove_rule_rcu__(rule
);
2859 BITMAP_FOR_EACH_1(table_id
, 256, tables
) {
2860 struct classifier
*cls
= &ofproto
->tables
[table_id
].cls
;
2862 classifier_publish(cls
);
2864 ovs_mutex_unlock(&ofproto_mutex
);
2871 ofproto_group_ref(struct ofgroup
*group
)
2874 ovs_refcount_ref(&group
->ref_count
);
2879 ofproto_group_unref(struct ofgroup
*group
)
2881 if (group
&& ovs_refcount_unref(&group
->ref_count
) == 1) {
2882 group
->ofproto
->ofproto_class
->group_destruct(group
);
2883 ofputil_bucket_list_destroy(&group
->buckets
);
2884 group
->ofproto
->ofproto_class
->group_dealloc(group
);
2888 static uint32_t get_provider_meter_id(const struct ofproto
*,
2889 uint32_t of_meter_id
);
2891 /* Creates and returns a new 'struct rule_actions', whose actions are a copy
2892 * of from the 'ofpacts_len' bytes of 'ofpacts'. */
2893 const struct rule_actions
*
2894 rule_actions_create(const struct ofpact
*ofpacts
, size_t ofpacts_len
)
2896 struct rule_actions
*actions
;
2898 actions
= xmalloc(sizeof *actions
+ ofpacts_len
);
2899 actions
->ofpacts_len
= ofpacts_len
;
2900 actions
->has_meter
= ofpacts_get_meter(ofpacts
, ofpacts_len
) != 0;
2901 memcpy(actions
->ofpacts
, ofpacts
, ofpacts_len
);
2903 actions
->has_learn_with_delete
= (next_learn_with_delete(actions
, NULL
)
2909 /* Free the actions after the RCU quiescent period is reached. */
2911 rule_actions_destroy(const struct rule_actions
*actions
)
2914 ovsrcu_postpone(free
, CONST_CAST(struct rule_actions
*, actions
));
2918 /* Returns true if 'rule' has an OpenFlow OFPAT_OUTPUT or OFPAT_ENQUEUE action
2919 * that outputs to 'port' (output to OFPP_FLOOD and OFPP_ALL doesn't count). */
2921 ofproto_rule_has_out_port(const struct rule
*rule
, ofp_port_t port
)
2922 OVS_REQUIRES(ofproto_mutex
)
2924 if (port
== OFPP_ANY
) {
2927 const struct rule_actions
*actions
= rule_get_actions(rule
);
2928 return ofpacts_output_to_port(actions
->ofpacts
,
2929 actions
->ofpacts_len
, port
);
2933 /* Returns true if 'rule' has group and equals group_id. */
2935 ofproto_rule_has_out_group(const struct rule
*rule
, uint32_t group_id
)
2936 OVS_REQUIRES(ofproto_mutex
)
2938 if (group_id
== OFPG_ANY
) {
2941 const struct rule_actions
*actions
= rule_get_actions(rule
);
2942 return ofpacts_output_to_group(actions
->ofpacts
,
2943 actions
->ofpacts_len
, group_id
);
2948 rule_execute_destroy(struct rule_execute
*e
)
2950 ofproto_rule_unref(e
->rule
);
2951 list_remove(&e
->list_node
);
2955 /* Executes all "rule_execute" operations queued up in ofproto->rule_executes,
2956 * by passing them to the ofproto provider. */
2958 run_rule_executes(struct ofproto
*ofproto
)
2959 OVS_EXCLUDED(ofproto_mutex
)
2961 struct rule_execute
*e
, *next
;
2962 struct ovs_list executes
;
2964 guarded_list_pop_all(&ofproto
->rule_executes
, &executes
);
2965 LIST_FOR_EACH_SAFE (e
, next
, list_node
, &executes
) {
2968 flow_extract(e
->packet
, &flow
);
2969 flow
.in_port
.ofp_port
= e
->in_port
;
2970 ofproto
->ofproto_class
->rule_execute(e
->rule
, &flow
, e
->packet
);
2972 rule_execute_destroy(e
);
2976 /* Destroys and discards all "rule_execute" operations queued up in
2977 * ofproto->rule_executes. */
2979 destroy_rule_executes(struct ofproto
*ofproto
)
2981 struct rule_execute
*e
, *next
;
2982 struct ovs_list executes
;
2984 guarded_list_pop_all(&ofproto
->rule_executes
, &executes
);
2985 LIST_FOR_EACH_SAFE (e
, next
, list_node
, &executes
) {
2986 dp_packet_delete(e
->packet
);
2987 rule_execute_destroy(e
);
2992 rule_is_readonly(const struct rule
*rule
)
2994 const struct oftable
*table
= &rule
->ofproto
->tables
[rule
->table_id
];
2995 return (table
->flags
& OFTABLE_READONLY
) != 0;
2999 hash_learned_cookie(ovs_be64 cookie_
, uint8_t table_id
)
3001 uint64_t cookie
= (OVS_FORCE
uint64_t) cookie_
;
3002 return hash_3words(cookie
, cookie
>> 32, table_id
);
3006 learned_cookies_update_one__(struct ofproto
*ofproto
,
3007 const struct ofpact_learn
*learn
,
3008 int delta
, struct ovs_list
*dead_cookies
)
3009 OVS_REQUIRES(ofproto_mutex
)
3011 uint32_t hash
= hash_learned_cookie(learn
->cookie
, learn
->table_id
);
3012 struct learned_cookie
*c
;
3014 HMAP_FOR_EACH_WITH_HASH (c
, u
.hmap_node
, hash
, &ofproto
->learned_cookies
) {
3015 if (c
->cookie
== learn
->cookie
&& c
->table_id
== learn
->table_id
) {
3017 ovs_assert(c
->n
>= 0);
3020 hmap_remove(&ofproto
->learned_cookies
, &c
->u
.hmap_node
);
3021 list_push_back(dead_cookies
, &c
->u
.list_node
);
3028 ovs_assert(delta
> 0);
3029 c
= xmalloc(sizeof *c
);
3030 hmap_insert(&ofproto
->learned_cookies
, &c
->u
.hmap_node
, hash
);
3031 c
->cookie
= learn
->cookie
;
3032 c
->table_id
= learn
->table_id
;
3036 static const struct ofpact_learn
*
3037 next_learn_with_delete(const struct rule_actions
*actions
,
3038 const struct ofpact_learn
*start
)
3040 const struct ofpact
*pos
;
3042 for (pos
= start
? ofpact_next(&start
->ofpact
) : actions
->ofpacts
;
3043 pos
< ofpact_end(actions
->ofpacts
, actions
->ofpacts_len
);
3044 pos
= ofpact_next(pos
)) {
3045 if (pos
->type
== OFPACT_LEARN
) {
3046 const struct ofpact_learn
*learn
= ofpact_get_LEARN(pos
);
3047 if (learn
->flags
& NX_LEARN_F_DELETE_LEARNED
) {
3057 learned_cookies_update__(struct ofproto
*ofproto
,
3058 const struct rule_actions
*actions
,
3059 int delta
, struct ovs_list
*dead_cookies
)
3060 OVS_REQUIRES(ofproto_mutex
)
3062 if (actions
->has_learn_with_delete
) {
3063 const struct ofpact_learn
*learn
;
3065 for (learn
= next_learn_with_delete(actions
, NULL
); learn
;
3066 learn
= next_learn_with_delete(actions
, learn
)) {
3067 learned_cookies_update_one__(ofproto
, learn
, delta
, dead_cookies
);
3073 learned_cookies_inc(struct ofproto
*ofproto
,
3074 const struct rule_actions
*actions
)
3075 OVS_REQUIRES(ofproto_mutex
)
3077 learned_cookies_update__(ofproto
, actions
, +1, NULL
);
3081 learned_cookies_dec(struct ofproto
*ofproto
,
3082 const struct rule_actions
*actions
,
3083 struct ovs_list
*dead_cookies
)
3084 OVS_REQUIRES(ofproto_mutex
)
3086 learned_cookies_update__(ofproto
, actions
, -1, dead_cookies
);
3090 learned_cookies_flush(struct ofproto
*ofproto
, struct ovs_list
*dead_cookies
)
3091 OVS_REQUIRES(ofproto_mutex
)
3093 struct learned_cookie
*c
;
3095 LIST_FOR_EACH_POP (c
, u
.list_node
, dead_cookies
) {
3096 struct rule_criteria criteria
;
3097 struct rule_collection rules
;
3100 match_init_catchall(&match
);
3101 rule_criteria_init(&criteria
, c
->table_id
, &match
, 0, CLS_MAX_VERSION
,
3102 c
->cookie
, OVS_BE64_MAX
, OFPP_ANY
, OFPG_ANY
);
3103 rule_criteria_require_rw(&criteria
, false);
3104 collect_rules_loose(ofproto
, &criteria
, &rules
);
3105 rule_criteria_destroy(&criteria
);
3106 delete_flows__(&rules
, OFPRR_DELETE
, NULL
);
3113 handle_echo_request(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
3115 ofconn_send_reply(ofconn
, make_echo_reply(oh
));
3120 query_tables(struct ofproto
*ofproto
,
3121 struct ofputil_table_features
**featuresp
,
3122 struct ofputil_table_stats
**statsp
)
3124 struct mf_bitmap rw_fields
= oxm_writable_fields();
3125 struct mf_bitmap match
= oxm_matchable_fields();
3126 struct mf_bitmap mask
= oxm_maskable_fields();
3128 struct ofputil_table_features
*features
;
3129 struct ofputil_table_stats
*stats
;
3132 features
= *featuresp
= xcalloc(ofproto
->n_tables
, sizeof *features
);
3133 for (i
= 0; i
< ofproto
->n_tables
; i
++) {
3134 struct ofputil_table_features
*f
= &features
[i
];
3137 sprintf(f
->name
, "table%d", i
);
3138 f
->metadata_match
= OVS_BE64_MAX
;
3139 f
->metadata_write
= OVS_BE64_MAX
;
3140 atomic_read_relaxed(&ofproto
->tables
[i
].miss_config
, &f
->miss_config
);
3141 f
->max_entries
= 1000000;
3143 bool more_tables
= false;
3144 for (int j
= i
+ 1; j
< ofproto
->n_tables
; j
++) {
3145 if (!(ofproto
->tables
[j
].flags
& OFTABLE_HIDDEN
)) {
3146 bitmap_set1(f
->nonmiss
.next
, j
);
3150 f
->nonmiss
.instructions
= (1u << N_OVS_INSTRUCTIONS
) - 1;
3152 f
->nonmiss
.instructions
&= ~(1u << OVSINST_OFPIT11_GOTO_TABLE
);
3154 f
->nonmiss
.write
.ofpacts
= (UINT64_C(1) << N_OFPACTS
) - 1;
3155 f
->nonmiss
.write
.set_fields
= rw_fields
;
3156 f
->nonmiss
.apply
= f
->nonmiss
.write
;
3157 f
->miss
= f
->nonmiss
;
3161 f
->wildcard
= match
;
3165 stats
= *statsp
= xcalloc(ofproto
->n_tables
, sizeof *stats
);
3166 for (i
= 0; i
< ofproto
->n_tables
; i
++) {
3167 struct ofputil_table_stats
*s
= &stats
[i
];
3170 s
->active_count
= ofproto
->tables
[i
].n_flows
;
3172 s
->active_count
-= connmgr_count_hidden_rules(
3180 ofproto
->ofproto_class
->query_tables(ofproto
, features
, stats
);
3182 for (i
= 0; i
< ofproto
->n_tables
; i
++) {
3183 const struct oftable
*table
= &ofproto
->tables
[i
];
3184 struct ofputil_table_features
*f
= &features
[i
];
3187 ovs_strzcpy(f
->name
, table
->name
, sizeof f
->name
);
3190 if (table
->max_flows
< f
->max_entries
) {
3191 f
->max_entries
= table
->max_flows
;
3197 query_switch_features(struct ofproto
*ofproto
,
3198 bool *arp_match_ip
, uint64_t *ofpacts
)
3200 struct ofputil_table_features
*features
, *f
;
3202 *arp_match_ip
= false;
3205 query_tables(ofproto
, &features
, NULL
);
3206 for (f
= features
; f
< &features
[ofproto
->n_tables
]; f
++) {
3207 *ofpacts
|= f
->nonmiss
.apply
.ofpacts
| f
->miss
.apply
.ofpacts
;
3208 if (bitmap_is_set(f
->match
.bm
, MFF_ARP_SPA
) ||
3209 bitmap_is_set(f
->match
.bm
, MFF_ARP_TPA
)) {
3210 *arp_match_ip
= true;
3216 ovs_assert(*ofpacts
& (UINT64_C(1) << OFPACT_OUTPUT
));
3220 handle_features_request(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
3222 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
3223 struct ofputil_switch_features features
;
3224 struct ofport
*port
;
3228 query_switch_features(ofproto
, &arp_match_ip
, &features
.ofpacts
);
3230 features
.datapath_id
= ofproto
->datapath_id
;
3231 features
.n_buffers
= pktbuf_capacity();
3232 features
.n_tables
= ofproto_get_n_visible_tables(ofproto
);
3233 features
.capabilities
= (OFPUTIL_C_FLOW_STATS
| OFPUTIL_C_TABLE_STATS
|
3234 OFPUTIL_C_PORT_STATS
| OFPUTIL_C_QUEUE_STATS
|
3235 OFPUTIL_C_GROUP_STATS
);
3237 features
.capabilities
|= OFPUTIL_C_ARP_MATCH_IP
;
3239 /* FIXME: Fill in proper features.auxiliary_id for auxiliary connections */
3240 features
.auxiliary_id
= 0;
3241 b
= ofputil_encode_switch_features(&features
, ofconn_get_protocol(ofconn
),
3243 HMAP_FOR_EACH (port
, hmap_node
, &ofproto
->ports
) {
3244 ofputil_put_switch_features_port(&port
->pp
, b
);
3247 ofconn_send_reply(ofconn
, b
);
3252 handle_get_config_request(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
3254 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
3255 struct ofp_switch_config
*osc
;
3256 enum ofp_config_flags flags
;
3260 buf
= ofpraw_alloc_reply(OFPRAW_OFPT_GET_CONFIG_REPLY
, oh
, 0);
3261 osc
= ofpbuf_put_uninit(buf
, sizeof *osc
);
3262 flags
= ofproto
->frag_handling
;
3263 /* OFPC_INVALID_TTL_TO_CONTROLLER is deprecated in OF 1.3 */
3264 if (oh
->version
< OFP13_VERSION
3265 && ofconn_get_invalid_ttl_to_controller(ofconn
)) {
3266 flags
|= OFPC_INVALID_TTL_TO_CONTROLLER
;
3268 osc
->flags
= htons(flags
);
3269 osc
->miss_send_len
= htons(ofconn_get_miss_send_len(ofconn
));
3270 ofconn_send_reply(ofconn
, buf
);
3276 handle_set_config(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
3278 const struct ofp_switch_config
*osc
= ofpmsg_body(oh
);
3279 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
3280 uint16_t flags
= ntohs(osc
->flags
);
3282 if (ofconn_get_type(ofconn
) != OFCONN_PRIMARY
3283 || ofconn_get_role(ofconn
) != OFPCR12_ROLE_SLAVE
) {
3284 enum ofp_config_flags cur
= ofproto
->frag_handling
;
3285 enum ofp_config_flags next
= flags
& OFPC_FRAG_MASK
;
3287 ovs_assert((cur
& OFPC_FRAG_MASK
) == cur
);
3289 if (ofproto
->ofproto_class
->set_frag_handling(ofproto
, next
)) {
3290 ofproto
->frag_handling
= next
;
3292 VLOG_WARN_RL(&rl
, "%s: unsupported fragment handling mode %s",
3294 ofputil_frag_handling_to_string(next
));
3298 /* OFPC_INVALID_TTL_TO_CONTROLLER is deprecated in OF 1.3 */
3299 ofconn_set_invalid_ttl_to_controller(ofconn
,
3300 (oh
->version
< OFP13_VERSION
3301 && flags
& OFPC_INVALID_TTL_TO_CONTROLLER
));
3303 ofconn_set_miss_send_len(ofconn
, ntohs(osc
->miss_send_len
));
3308 /* Checks whether 'ofconn' is a slave controller. If so, returns an OpenFlow
3309 * error message code for the caller to propagate upward. Otherwise, returns
3312 * The log message mentions 'msg_type'. */
3314 reject_slave_controller(struct ofconn
*ofconn
)
3316 if (ofconn_get_type(ofconn
) == OFCONN_PRIMARY
3317 && ofconn_get_role(ofconn
) == OFPCR12_ROLE_SLAVE
) {
3318 return OFPERR_OFPBRC_IS_SLAVE
;
3324 /* Checks that the 'ofpacts_len' bytes of action in 'ofpacts' are appropriate
3327 * - If they use a meter, then 'ofproto' has that meter configured.
3329 * - If they use any groups, then 'ofproto' has that group configured.
3331 * Returns 0 if successful, otherwise an OpenFlow error. */
3333 ofproto_check_ofpacts(struct ofproto
*ofproto
,
3334 const struct ofpact ofpacts
[], size_t ofpacts_len
)
3336 const struct ofpact
*a
;
3339 mid
= ofpacts_get_meter(ofpacts
, ofpacts_len
);
3340 if (mid
&& get_provider_meter_id(ofproto
, mid
) == UINT32_MAX
) {
3341 return OFPERR_OFPMMFC_INVALID_METER
;
3344 OFPACT_FOR_EACH (a
, ofpacts
, ofpacts_len
) {
3345 if (a
->type
== OFPACT_GROUP
3346 && !ofproto_group_exists(ofproto
, ofpact_get_GROUP(a
)->group_id
)) {
3347 return OFPERR_OFPBAC_BAD_OUT_GROUP
;
3355 handle_packet_out(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
3357 struct ofproto
*p
= ofconn_get_ofproto(ofconn
);
3358 struct ofputil_packet_out po
;
3359 struct dp_packet
*payload
;
3360 uint64_t ofpacts_stub
[1024 / 8];
3361 struct ofpbuf ofpacts
;
3365 COVERAGE_INC(ofproto_packet_out
);
3367 error
= reject_slave_controller(ofconn
);
3372 /* Decode message. */
3373 ofpbuf_use_stub(&ofpacts
, ofpacts_stub
, sizeof ofpacts_stub
);
3374 error
= ofputil_decode_packet_out(&po
, oh
, &ofpacts
);
3376 goto exit_free_ofpacts
;
3378 if (ofp_to_u16(po
.in_port
) >= p
->max_ports
3379 && ofp_to_u16(po
.in_port
) < ofp_to_u16(OFPP_MAX
)) {
3380 error
= OFPERR_OFPBRC_BAD_PORT
;
3381 goto exit_free_ofpacts
;
3385 if (po
.buffer_id
!= UINT32_MAX
) {
3386 error
= ofconn_pktbuf_retrieve(ofconn
, po
.buffer_id
, &payload
, NULL
);
3387 if (error
|| !payload
) {
3388 goto exit_free_ofpacts
;
3391 /* Ensure that the L3 header is 32-bit aligned. */
3392 payload
= dp_packet_clone_data_with_headroom(po
.packet
, po
.packet_len
, 2);
3395 /* Verify actions against packet, then send packet if successful. */
3396 flow_extract(payload
, &flow
);
3397 flow
.in_port
.ofp_port
= po
.in_port
;
3398 error
= ofproto_check_ofpacts(p
, po
.ofpacts
, po
.ofpacts_len
);
3400 error
= p
->ofproto_class
->packet_out(p
, payload
, &flow
,
3401 po
.ofpacts
, po
.ofpacts_len
);
3403 dp_packet_delete(payload
);
3406 ofpbuf_uninit(&ofpacts
);
3412 update_port_config(struct ofconn
*ofconn
, struct ofport
*port
,
3413 enum ofputil_port_config config
,
3414 enum ofputil_port_config mask
)
3416 enum ofputil_port_config toggle
= (config
^ port
->pp
.config
) & mask
;
3418 if (toggle
& OFPUTIL_PC_PORT_DOWN
3419 && (config
& OFPUTIL_PC_PORT_DOWN
3420 ? netdev_turn_flags_off(port
->netdev
, NETDEV_UP
, NULL
)
3421 : netdev_turn_flags_on(port
->netdev
, NETDEV_UP
, NULL
))) {
3422 /* We tried to bring the port up or down, but it failed, so don't
3423 * update the "down" bit. */
3424 toggle
&= ~OFPUTIL_PC_PORT_DOWN
;
3428 enum ofputil_port_config old_config
= port
->pp
.config
;
3429 port
->pp
.config
^= toggle
;
3430 port
->ofproto
->ofproto_class
->port_reconfigured(port
, old_config
);
3431 connmgr_send_port_status(port
->ofproto
->connmgr
, ofconn
, &port
->pp
,
3437 port_mod_start(struct ofconn
*ofconn
, struct ofputil_port_mod
*pm
,
3438 struct ofport
**port
)
3440 struct ofproto
*p
= ofconn_get_ofproto(ofconn
);
3442 *port
= ofproto_get_port(p
, pm
->port_no
);
3444 return OFPERR_OFPPMFC_BAD_PORT
;
3446 if (!eth_addr_equals((*port
)->pp
.hw_addr
, pm
->hw_addr
)) {
3447 return OFPERR_OFPPMFC_BAD_HW_ADDR
;
3453 port_mod_finish(struct ofconn
*ofconn
, struct ofputil_port_mod
*pm
,
3454 struct ofport
*port
)
3456 update_port_config(ofconn
, port
, pm
->config
, pm
->mask
);
3457 if (pm
->advertise
) {
3458 netdev_set_advertisements(port
->netdev
, pm
->advertise
);
3463 handle_port_mod(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
3465 struct ofputil_port_mod pm
;
3466 struct ofport
*port
;
3469 error
= reject_slave_controller(ofconn
);
3474 error
= ofputil_decode_port_mod(oh
, &pm
, false);
3479 error
= port_mod_start(ofconn
, &pm
, &port
);
3481 port_mod_finish(ofconn
, &pm
, port
);
3487 handle_desc_stats_request(struct ofconn
*ofconn
,
3488 const struct ofp_header
*request
)
3490 static const char *default_mfr_desc
= "Nicira, Inc.";
3491 static const char *default_hw_desc
= "Open vSwitch";
3492 static const char *default_sw_desc
= VERSION
;
3493 static const char *default_serial_desc
= "None";
3494 static const char *default_dp_desc
= "None";
3496 struct ofproto
*p
= ofconn_get_ofproto(ofconn
);
3497 struct ofp_desc_stats
*ods
;
3500 msg
= ofpraw_alloc_stats_reply(request
, 0);
3501 ods
= ofpbuf_put_zeros(msg
, sizeof *ods
);
3502 ovs_strlcpy(ods
->mfr_desc
, p
->mfr_desc
? p
->mfr_desc
: default_mfr_desc
,
3503 sizeof ods
->mfr_desc
);
3504 ovs_strlcpy(ods
->hw_desc
, p
->hw_desc
? p
->hw_desc
: default_hw_desc
,
3505 sizeof ods
->hw_desc
);
3506 ovs_strlcpy(ods
->sw_desc
, p
->sw_desc
? p
->sw_desc
: default_sw_desc
,
3507 sizeof ods
->sw_desc
);
3508 ovs_strlcpy(ods
->serial_num
,
3509 p
->serial_desc
? p
->serial_desc
: default_serial_desc
,
3510 sizeof ods
->serial_num
);
3511 ovs_strlcpy(ods
->dp_desc
, p
->dp_desc
? p
->dp_desc
: default_dp_desc
,
3512 sizeof ods
->dp_desc
);
3513 ofconn_send_reply(ofconn
, msg
);
3519 handle_table_stats_request(struct ofconn
*ofconn
,
3520 const struct ofp_header
*request
)
3522 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
3523 struct ofputil_table_features
*features
;
3524 struct ofputil_table_stats
*stats
;
3525 struct ofpbuf
*reply
;
3528 query_tables(ofproto
, &features
, &stats
);
3530 reply
= ofputil_encode_table_stats_reply(request
);
3531 for (i
= 0; i
< ofproto
->n_tables
; i
++) {
3532 if (!(ofproto
->tables
[i
].flags
& OFTABLE_HIDDEN
)) {
3533 ofputil_append_table_stats_reply(reply
, &stats
[i
], &features
[i
]);
3536 ofconn_send_reply(ofconn
, reply
);
3545 handle_table_features_request(struct ofconn
*ofconn
,
3546 const struct ofp_header
*request
)
3548 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
3549 struct ofputil_table_features
*features
;
3550 struct ovs_list replies
;
3554 ofpbuf_use_const(&msg
, request
, ntohs(request
->length
));
3555 ofpraw_pull_assert(&msg
);
3556 if (msg
.size
|| ofpmp_more(request
)) {
3557 return OFPERR_OFPTFFC_EPERM
;
3560 query_tables(ofproto
, &features
, NULL
);
3562 ofpmp_init(&replies
, request
);
3563 for (i
= 0; i
< ofproto
->n_tables
; i
++) {
3564 if (!(ofproto
->tables
[i
].flags
& OFTABLE_HIDDEN
)) {
3565 ofputil_append_table_features_reply(&features
[i
], &replies
);
3568 ofconn_send_replies(ofconn
, &replies
);
3576 append_port_stat(struct ofport
*port
, struct ovs_list
*replies
)
3578 struct ofputil_port_stats ops
= { .port_no
= port
->pp
.port_no
};
3580 calc_duration(port
->created
, time_msec(),
3581 &ops
.duration_sec
, &ops
.duration_nsec
);
3583 /* Intentionally ignore return value, since errors will set
3584 * 'stats' to all-1s, which is correct for OpenFlow, and
3585 * netdev_get_stats() will log errors. */
3586 ofproto_port_get_stats(port
, &ops
.stats
);
3588 ofputil_append_port_stat(replies
, &ops
);
3592 handle_port_request(struct ofconn
*ofconn
,
3593 const struct ofp_header
*request
, ofp_port_t port_no
,
3594 void (*cb
)(struct ofport
*, struct ovs_list
*replies
))
3596 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
3597 struct ofport
*port
;
3598 struct ovs_list replies
;
3600 ofpmp_init(&replies
, request
);
3601 if (port_no
!= OFPP_ANY
) {
3602 port
= ofproto_get_port(ofproto
, port_no
);
3607 HMAP_FOR_EACH (port
, hmap_node
, &ofproto
->ports
) {
3612 ofconn_send_replies(ofconn
, &replies
);
3616 handle_port_stats_request(struct ofconn
*ofconn
,
3617 const struct ofp_header
*request
)
3622 error
= ofputil_decode_port_stats_request(request
, &port_no
);
3624 handle_port_request(ofconn
, request
, port_no
, append_port_stat
);
3630 append_port_desc(struct ofport
*port
, struct ovs_list
*replies
)
3632 ofputil_append_port_desc_stats_reply(&port
->pp
, replies
);
3636 handle_port_desc_stats_request(struct ofconn
*ofconn
,
3637 const struct ofp_header
*request
)
3642 error
= ofputil_decode_port_desc_stats_request(request
, &port_no
);
3644 handle_port_request(ofconn
, request
, port_no
, append_port_desc
);
3650 hash_cookie(ovs_be64 cookie
)
3652 return hash_uint64((OVS_FORCE
uint64_t)cookie
);
3656 cookies_insert(struct ofproto
*ofproto
, struct rule
*rule
)
3657 OVS_REQUIRES(ofproto_mutex
)
3659 hindex_insert(&ofproto
->cookies
, &rule
->cookie_node
,
3660 hash_cookie(rule
->flow_cookie
));
3664 cookies_remove(struct ofproto
*ofproto
, struct rule
*rule
)
3665 OVS_REQUIRES(ofproto_mutex
)
3667 hindex_remove(&ofproto
->cookies
, &rule
->cookie_node
);
3671 calc_duration(long long int start
, long long int now
,
3672 uint32_t *sec
, uint32_t *nsec
)
3674 long long int msecs
= now
- start
;
3675 *sec
= msecs
/ 1000;
3676 *nsec
= (msecs
% 1000) * (1000 * 1000);
3679 /* Checks whether 'table_id' is 0xff or a valid table ID in 'ofproto'. Returns
3680 * true if 'table_id' is OK, false otherwise. */
3682 check_table_id(const struct ofproto
*ofproto
, uint8_t table_id
)
3684 return table_id
== OFPTT_ALL
|| table_id
< ofproto
->n_tables
;
3687 static struct oftable
*
3688 next_visible_table(const struct ofproto
*ofproto
, uint8_t table_id
)
3690 struct oftable
*table
;
3692 for (table
= &ofproto
->tables
[table_id
];
3693 table
< &ofproto
->tables
[ofproto
->n_tables
];
3695 if (!(table
->flags
& OFTABLE_HIDDEN
)) {
3703 static struct oftable
*
3704 first_matching_table(const struct ofproto
*ofproto
, uint8_t table_id
)
3706 if (table_id
== 0xff) {
3707 return next_visible_table(ofproto
, 0);
3708 } else if (table_id
< ofproto
->n_tables
) {
3709 return &ofproto
->tables
[table_id
];
3715 static struct oftable
*
3716 next_matching_table(const struct ofproto
*ofproto
,
3717 const struct oftable
*table
, uint8_t table_id
)
3719 return (table_id
== 0xff
3720 ? next_visible_table(ofproto
, (table
- ofproto
->tables
) + 1)
3724 /* Assigns TABLE to each oftable, in turn, that matches TABLE_ID in OFPROTO:
3726 * - If TABLE_ID is 0xff, this iterates over every classifier table in
3727 * OFPROTO, skipping tables marked OFTABLE_HIDDEN.
3729 * - If TABLE_ID is the number of a table in OFPROTO, then the loop iterates
3730 * only once, for that table. (This can be used to access tables marked
3733 * - Otherwise, TABLE_ID isn't valid for OFPROTO, so the loop won't be
3734 * entered at all. (Perhaps you should have validated TABLE_ID with
3735 * check_table_id().)
3737 * All parameters are evaluated multiple times.
3739 #define FOR_EACH_MATCHING_TABLE(TABLE, TABLE_ID, OFPROTO) \
3740 for ((TABLE) = first_matching_table(OFPROTO, TABLE_ID); \
3742 (TABLE) = next_matching_table(OFPROTO, TABLE, TABLE_ID))
3744 /* Initializes 'criteria' in a straightforward way based on the other
3747 * By default, the criteria include flows that are read-only, on the assumption
3748 * that the collected flows won't be modified. Call rule_criteria_require_rw()
3749 * if flows will be modified.
3751 * For "loose" matching, the 'priority' parameter is unimportant and may be
3754 rule_criteria_init(struct rule_criteria
*criteria
, uint8_t table_id
,
3755 const struct match
*match
, int priority
,
3756 cls_version_t version
, ovs_be64 cookie
,
3757 ovs_be64 cookie_mask
, ofp_port_t out_port
,
3760 criteria
->table_id
= table_id
;
3761 cls_rule_init(&criteria
->cr
, match
, priority
, version
);
3762 criteria
->cookie
= cookie
;
3763 criteria
->cookie_mask
= cookie_mask
;
3764 criteria
->out_port
= out_port
;
3765 criteria
->out_group
= out_group
;
3767 /* We ordinarily want to skip hidden rules, but there has to be a way for
3768 * code internal to OVS to modify and delete them, so if the criteria
3769 * specify a priority that can only be for a hidden flow, then allow hidden
3770 * rules to be selected. (This doesn't allow OpenFlow clients to meddle
3771 * with hidden flows because OpenFlow uses only a 16-bit field to specify
3773 criteria
->include_hidden
= priority
> UINT16_MAX
;
3775 /* We assume that the criteria are being used to collect flows for reading
3776 * but not modification. Thus, we should collect read-only flows. */
3777 criteria
->include_readonly
= true;
3780 /* By default, criteria initialized by rule_criteria_init() will match flows
3781 * that are read-only, on the assumption that the collected flows won't be
3782 * modified. Call this function to match only flows that are be modifiable.
3784 * Specify 'can_write_readonly' as false in ordinary circumstances, true if the
3785 * caller has special privileges that allow it to modify even "read-only"
3788 rule_criteria_require_rw(struct rule_criteria
*criteria
,
3789 bool can_write_readonly
)
3791 criteria
->include_readonly
= can_write_readonly
;
3795 rule_criteria_destroy(struct rule_criteria
*criteria
)
3797 cls_rule_destroy(&criteria
->cr
);
3801 rule_collection_init(struct rule_collection
*rules
)
3803 rules
->rules
= rules
->stub
;
3805 rules
->capacity
= ARRAY_SIZE(rules
->stub
);
3809 rule_collection_add(struct rule_collection
*rules
, struct rule
*rule
)
3811 if (rules
->n
>= rules
->capacity
) {
3812 size_t old_size
, new_size
;
3814 old_size
= rules
->capacity
* sizeof *rules
->rules
;
3815 rules
->capacity
*= 2;
3816 new_size
= rules
->capacity
* sizeof *rules
->rules
;
3818 if (rules
->rules
== rules
->stub
) {
3819 rules
->rules
= xmalloc(new_size
);
3820 memcpy(rules
->rules
, rules
->stub
, old_size
);
3822 rules
->rules
= xrealloc(rules
->rules
, new_size
);
3826 rules
->rules
[rules
->n
++] = rule
;
3830 rule_collection_ref(struct rule_collection
*rules
)
3831 OVS_REQUIRES(ofproto_mutex
)
3835 for (i
= 0; i
< rules
->n
; i
++) {
3836 ofproto_rule_ref(rules
->rules
[i
]);
3841 rule_collection_unref(struct rule_collection
*rules
)
3845 for (i
= 0; i
< rules
->n
; i
++) {
3846 ofproto_rule_unref(rules
->rules
[i
]);
3850 /* Returns a NULL-terminated array of rule pointers,
3851 * destroys 'rules'. */
3852 static struct rule
**
3853 rule_collection_detach(struct rule_collection
*rules
)
3855 struct rule
**rule_array
;
3857 rule_collection_add(rules
, NULL
);
3859 if (rules
->rules
== rules
->stub
) {
3860 rules
->rules
= xmemdup(rules
->rules
, rules
->n
* sizeof *rules
->rules
);
3863 rule_array
= rules
->rules
;
3864 rule_collection_init(rules
);
3870 rule_collection_destroy(struct rule_collection
*rules
)
3872 if (rules
->rules
!= rules
->stub
) {
3876 /* Make repeated destruction harmless. */
3877 rule_collection_init(rules
);
3880 /* Schedules postponed removal of rules, destroys 'rules'. */
3882 rule_collection_remove_postponed(struct rule_collection
*rules
)
3883 OVS_REQUIRES(ofproto_mutex
)
3886 if (rules
->n
== 1) {
3887 ovsrcu_postpone(remove_rule_rcu
, rules
->rules
[0]);
3889 ovsrcu_postpone(remove_rules_rcu
, rule_collection_detach(rules
));
3894 /* Checks whether 'rule' matches 'c' and, if so, adds it to 'rules'. This
3895 * function verifies most of the criteria in 'c' itself, but the caller must
3896 * check 'c->cr' itself.
3898 * Rules that have already been marked for removal are not collected.
3900 * Increments '*n_readonly' if 'rule' wasn't added because it's read-only (and
3901 * 'c' only includes modifiable rules). */
3903 collect_rule(struct rule
*rule
, const struct rule_criteria
*c
,
3904 struct rule_collection
*rules
, size_t *n_readonly
)
3905 OVS_REQUIRES(ofproto_mutex
)
3907 if ((c
->table_id
== rule
->table_id
|| c
->table_id
== 0xff)
3908 && ofproto_rule_has_out_port(rule
, c
->out_port
)
3909 && ofproto_rule_has_out_group(rule
, c
->out_group
)
3910 && !((rule
->flow_cookie
^ c
->cookie
) & c
->cookie_mask
)
3911 && (!rule_is_hidden(rule
) || c
->include_hidden
)
3912 && cls_rule_visible_in_version(&rule
->cr
, c
->cr
.version
)) {
3913 /* Rule matches all the criteria... */
3914 if (!rule_is_readonly(rule
) || c
->include_readonly
) {
3916 rule_collection_add(rules
, rule
);
3918 /* ...except it's read-only. */
3924 /* Searches 'ofproto' for rules that match the criteria in 'criteria'. Matches
3925 * on classifiers rules are done in the "loose" way required for OpenFlow
3926 * OFPFC_MODIFY and OFPFC_DELETE requests. Puts the selected rules on list
3929 * Returns 0 on success, otherwise an OpenFlow error code. */
3931 collect_rules_loose(struct ofproto
*ofproto
,
3932 const struct rule_criteria
*criteria
,
3933 struct rule_collection
*rules
)
3934 OVS_REQUIRES(ofproto_mutex
)
3936 struct oftable
*table
;
3937 enum ofperr error
= 0;
3938 size_t n_readonly
= 0;
3940 rule_collection_init(rules
);
3942 if (!check_table_id(ofproto
, criteria
->table_id
)) {
3943 error
= OFPERR_OFPBRC_BAD_TABLE_ID
;
3947 if (criteria
->cookie_mask
== OVS_BE64_MAX
) {
3950 HINDEX_FOR_EACH_WITH_HASH (rule
, cookie_node
,
3951 hash_cookie(criteria
->cookie
),
3952 &ofproto
->cookies
) {
3953 if (cls_rule_is_loose_match(&rule
->cr
, &criteria
->cr
.match
)) {
3954 collect_rule(rule
, criteria
, rules
, &n_readonly
);
3958 FOR_EACH_MATCHING_TABLE (table
, criteria
->table_id
, ofproto
) {
3961 CLS_FOR_EACH_TARGET (rule
, cr
, &table
->cls
, &criteria
->cr
) {
3962 collect_rule(rule
, criteria
, rules
, &n_readonly
);
3968 if (!error
&& !rules
->n
&& n_readonly
) {
3969 /* We didn't find any rules to modify. We did find some read-only
3970 * rules that we're not allowed to modify, so report that. */
3971 error
= OFPERR_OFPBRC_EPERM
;
3974 rule_collection_destroy(rules
);
3979 /* Searches 'ofproto' for rules that match the criteria in 'criteria'. Matches
3980 * on classifiers rules are done in the "strict" way required for OpenFlow
3981 * OFPFC_MODIFY_STRICT and OFPFC_DELETE_STRICT requests. Puts the selected
3982 * rules on list 'rules'.
3984 * Returns 0 on success, otherwise an OpenFlow error code. */
3986 collect_rules_strict(struct ofproto
*ofproto
,
3987 const struct rule_criteria
*criteria
,
3988 struct rule_collection
*rules
)
3989 OVS_REQUIRES(ofproto_mutex
)
3991 struct oftable
*table
;
3992 size_t n_readonly
= 0;
3993 enum ofperr error
= 0;
3995 rule_collection_init(rules
);
3997 if (!check_table_id(ofproto
, criteria
->table_id
)) {
3998 error
= OFPERR_OFPBRC_BAD_TABLE_ID
;
4002 if (criteria
->cookie_mask
== OVS_BE64_MAX
) {
4005 HINDEX_FOR_EACH_WITH_HASH (rule
, cookie_node
,
4006 hash_cookie(criteria
->cookie
),
4007 &ofproto
->cookies
) {
4008 if (cls_rule_equal(&rule
->cr
, &criteria
->cr
)) {
4009 collect_rule(rule
, criteria
, rules
, &n_readonly
);
4013 FOR_EACH_MATCHING_TABLE (table
, criteria
->table_id
, ofproto
) {
4016 rule
= rule_from_cls_rule(classifier_find_rule_exactly(
4017 &table
->cls
, &criteria
->cr
));
4019 collect_rule(rule
, criteria
, rules
, &n_readonly
);
4025 if (!error
&& !rules
->n
&& n_readonly
) {
4026 /* We didn't find any rules to modify. We did find some read-only
4027 * rules that we're not allowed to modify, so report that. */
4028 error
= OFPERR_OFPBRC_EPERM
;
4031 rule_collection_destroy(rules
);
4036 /* Returns 'age_ms' (a duration in milliseconds), converted to seconds and
4037 * forced into the range of a uint16_t. */
4039 age_secs(long long int age_ms
)
4041 return (age_ms
< 0 ? 0
4042 : age_ms
>= UINT16_MAX
* 1000 ? UINT16_MAX
4043 : (unsigned int) age_ms
/ 1000);
4047 handle_flow_stats_request(struct ofconn
*ofconn
,
4048 const struct ofp_header
*request
)
4049 OVS_EXCLUDED(ofproto_mutex
)
4051 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
4052 struct ofputil_flow_stats_request fsr
;
4053 struct rule_criteria criteria
;
4054 struct rule_collection rules
;
4055 struct ovs_list replies
;
4059 error
= ofputil_decode_flow_stats_request(&fsr
, request
);
4064 rule_criteria_init(&criteria
, fsr
.table_id
, &fsr
.match
, 0, CLS_MAX_VERSION
,
4065 fsr
.cookie
, fsr
.cookie_mask
, fsr
.out_port
,
4068 ovs_mutex_lock(&ofproto_mutex
);
4069 error
= collect_rules_loose(ofproto
, &criteria
, &rules
);
4070 rule_criteria_destroy(&criteria
);
4072 rule_collection_ref(&rules
);
4074 ovs_mutex_unlock(&ofproto_mutex
);
4080 ofpmp_init(&replies
, request
);
4081 for (i
= 0; i
< rules
.n
; i
++) {
4082 struct rule
*rule
= rules
.rules
[i
];
4083 long long int now
= time_msec();
4084 struct ofputil_flow_stats fs
;
4085 long long int created
, used
, modified
;
4086 const struct rule_actions
*actions
;
4087 enum ofputil_flow_mod_flags flags
;
4089 ovs_mutex_lock(&rule
->mutex
);
4090 fs
.cookie
= rule
->flow_cookie
;
4091 fs
.idle_timeout
= rule
->idle_timeout
;
4092 fs
.hard_timeout
= rule
->hard_timeout
;
4093 fs
.importance
= rule
->importance
;
4094 created
= rule
->created
;
4095 modified
= rule
->modified
;
4096 actions
= rule_get_actions(rule
);
4097 flags
= rule
->flags
;
4098 ovs_mutex_unlock(&rule
->mutex
);
4100 ofproto
->ofproto_class
->rule_get_stats(rule
, &fs
.packet_count
,
4101 &fs
.byte_count
, &used
);
4103 minimatch_expand(&rule
->cr
.match
, &fs
.match
);
4104 fs
.table_id
= rule
->table_id
;
4105 calc_duration(created
, now
, &fs
.duration_sec
, &fs
.duration_nsec
);
4106 fs
.priority
= rule
->cr
.priority
;
4107 fs
.idle_age
= age_secs(now
- used
);
4108 fs
.hard_age
= age_secs(now
- modified
);
4109 fs
.ofpacts
= actions
->ofpacts
;
4110 fs
.ofpacts_len
= actions
->ofpacts_len
;
4113 ofputil_append_flow_stats_reply(&fs
, &replies
);
4116 rule_collection_unref(&rules
);
4117 rule_collection_destroy(&rules
);
4119 ofconn_send_replies(ofconn
, &replies
);
4125 flow_stats_ds(struct rule
*rule
, struct ds
*results
)
4127 uint64_t packet_count
, byte_count
;
4128 const struct rule_actions
*actions
;
4129 long long int created
, used
;
4131 rule
->ofproto
->ofproto_class
->rule_get_stats(rule
, &packet_count
,
4132 &byte_count
, &used
);
4134 ovs_mutex_lock(&rule
->mutex
);
4135 actions
= rule_get_actions(rule
);
4136 created
= rule
->created
;
4137 ovs_mutex_unlock(&rule
->mutex
);
4139 if (rule
->table_id
!= 0) {
4140 ds_put_format(results
, "table_id=%"PRIu8
", ", rule
->table_id
);
4142 ds_put_format(results
, "duration=%llds, ", (time_msec() - created
) / 1000);
4143 ds_put_format(results
, "n_packets=%"PRIu64
", ", packet_count
);
4144 ds_put_format(results
, "n_bytes=%"PRIu64
", ", byte_count
);
4145 cls_rule_format(&rule
->cr
, results
);
4146 ds_put_char(results
, ',');
4148 ds_put_cstr(results
, "actions=");
4149 ofpacts_format(actions
->ofpacts
, actions
->ofpacts_len
, results
);
4151 ds_put_cstr(results
, "\n");
4154 /* Adds a pretty-printed description of all flows to 'results', including
4155 * hidden flows (e.g., set up by in-band control). */
4157 ofproto_get_all_flows(struct ofproto
*p
, struct ds
*results
)
4159 struct oftable
*table
;
4161 OFPROTO_FOR_EACH_TABLE (table
, p
) {
4164 CLS_FOR_EACH (rule
, cr
, &table
->cls
) {
4165 flow_stats_ds(rule
, results
);
4170 /* Obtains the NetFlow engine type and engine ID for 'ofproto' into
4171 * '*engine_type' and '*engine_id', respectively. */
4173 ofproto_get_netflow_ids(const struct ofproto
*ofproto
,
4174 uint8_t *engine_type
, uint8_t *engine_id
)
4176 ofproto
->ofproto_class
->get_netflow_ids(ofproto
, engine_type
, engine_id
);
4179 /* Checks the status change of CFM on 'ofport'.
4181 * Returns true if 'ofproto_class' does not support 'cfm_status_changed'. */
4183 ofproto_port_cfm_status_changed(struct ofproto
*ofproto
, ofp_port_t ofp_port
)
4185 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
4186 return (ofport
&& ofproto
->ofproto_class
->cfm_status_changed
4187 ? ofproto
->ofproto_class
->cfm_status_changed(ofport
)
4191 /* Checks the status of CFM configured on 'ofp_port' within 'ofproto'.
4192 * Returns 0 if the port's CFM status was successfully stored into
4193 * '*status'. Returns positive errno if the port did not have CFM
4196 * The caller must provide and own '*status', and must free 'status->rmps'.
4197 * '*status' is indeterminate if the return value is non-zero. */
4199 ofproto_port_get_cfm_status(const struct ofproto
*ofproto
, ofp_port_t ofp_port
,
4200 struct cfm_status
*status
)
4202 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
4203 return (ofport
&& ofproto
->ofproto_class
->get_cfm_status
4204 ? ofproto
->ofproto_class
->get_cfm_status(ofport
, status
)
4209 handle_aggregate_stats_request(struct ofconn
*ofconn
,
4210 const struct ofp_header
*oh
)
4211 OVS_EXCLUDED(ofproto_mutex
)
4213 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
4214 struct ofputil_flow_stats_request request
;
4215 struct ofputil_aggregate_stats stats
;
4216 bool unknown_packets
, unknown_bytes
;
4217 struct rule_criteria criteria
;
4218 struct rule_collection rules
;
4219 struct ofpbuf
*reply
;
4223 error
= ofputil_decode_flow_stats_request(&request
, oh
);
4228 rule_criteria_init(&criteria
, request
.table_id
, &request
.match
, 0,
4229 CLS_MAX_VERSION
, request
.cookie
, request
.cookie_mask
,
4230 request
.out_port
, request
.out_group
);
4232 ovs_mutex_lock(&ofproto_mutex
);
4233 error
= collect_rules_loose(ofproto
, &criteria
, &rules
);
4234 rule_criteria_destroy(&criteria
);
4236 rule_collection_ref(&rules
);
4238 ovs_mutex_unlock(&ofproto_mutex
);
4244 memset(&stats
, 0, sizeof stats
);
4245 unknown_packets
= unknown_bytes
= false;
4246 for (i
= 0; i
< rules
.n
; i
++) {
4247 struct rule
*rule
= rules
.rules
[i
];
4248 uint64_t packet_count
;
4249 uint64_t byte_count
;
4252 ofproto
->ofproto_class
->rule_get_stats(rule
, &packet_count
,
4253 &byte_count
, &used
);
4255 if (packet_count
== UINT64_MAX
) {
4256 unknown_packets
= true;
4258 stats
.packet_count
+= packet_count
;
4261 if (byte_count
== UINT64_MAX
) {
4262 unknown_bytes
= true;
4264 stats
.byte_count
+= byte_count
;
4269 if (unknown_packets
) {
4270 stats
.packet_count
= UINT64_MAX
;
4272 if (unknown_bytes
) {
4273 stats
.byte_count
= UINT64_MAX
;
4276 rule_collection_unref(&rules
);
4277 rule_collection_destroy(&rules
);
4279 reply
= ofputil_encode_aggregate_stats_reply(&stats
, oh
);
4280 ofconn_send_reply(ofconn
, reply
);
4285 struct queue_stats_cbdata
{
4286 struct ofport
*ofport
;
4287 struct ovs_list replies
;
4292 put_queue_stats(struct queue_stats_cbdata
*cbdata
, uint32_t queue_id
,
4293 const struct netdev_queue_stats
*stats
)
4295 struct ofputil_queue_stats oqs
;
4297 oqs
.port_no
= cbdata
->ofport
->pp
.port_no
;
4298 oqs
.queue_id
= queue_id
;
4299 oqs
.tx_bytes
= stats
->tx_bytes
;
4300 oqs
.tx_packets
= stats
->tx_packets
;
4301 oqs
.tx_errors
= stats
->tx_errors
;
4302 if (stats
->created
!= LLONG_MIN
) {
4303 calc_duration(stats
->created
, cbdata
->now
,
4304 &oqs
.duration_sec
, &oqs
.duration_nsec
);
4306 oqs
.duration_sec
= oqs
.duration_nsec
= UINT32_MAX
;
4308 ofputil_append_queue_stat(&cbdata
->replies
, &oqs
);
4312 handle_queue_stats_dump_cb(uint32_t queue_id
,
4313 struct netdev_queue_stats
*stats
,
4316 struct queue_stats_cbdata
*cbdata
= cbdata_
;
4318 put_queue_stats(cbdata
, queue_id
, stats
);
4322 handle_queue_stats_for_port(struct ofport
*port
, uint32_t queue_id
,
4323 struct queue_stats_cbdata
*cbdata
)
4325 cbdata
->ofport
= port
;
4326 if (queue_id
== OFPQ_ALL
) {
4327 netdev_dump_queue_stats(port
->netdev
,
4328 handle_queue_stats_dump_cb
, cbdata
);
4330 struct netdev_queue_stats stats
;
4332 if (!netdev_get_queue_stats(port
->netdev
, queue_id
, &stats
)) {
4333 put_queue_stats(cbdata
, queue_id
, &stats
);
4335 return OFPERR_OFPQOFC_BAD_QUEUE
;
4342 handle_queue_stats_request(struct ofconn
*ofconn
,
4343 const struct ofp_header
*rq
)
4345 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
4346 struct queue_stats_cbdata cbdata
;
4347 struct ofport
*port
;
4349 struct ofputil_queue_stats_request oqsr
;
4351 COVERAGE_INC(ofproto_queue_req
);
4353 ofpmp_init(&cbdata
.replies
, rq
);
4354 cbdata
.now
= time_msec();
4356 error
= ofputil_decode_queue_stats_request(rq
, &oqsr
);
4361 if (oqsr
.port_no
== OFPP_ANY
) {
4362 error
= OFPERR_OFPQOFC_BAD_QUEUE
;
4363 HMAP_FOR_EACH (port
, hmap_node
, &ofproto
->ports
) {
4364 if (!handle_queue_stats_for_port(port
, oqsr
.queue_id
, &cbdata
)) {
4369 port
= ofproto_get_port(ofproto
, oqsr
.port_no
);
4371 ? handle_queue_stats_for_port(port
, oqsr
.queue_id
, &cbdata
)
4372 : OFPERR_OFPQOFC_BAD_PORT
);
4375 ofconn_send_replies(ofconn
, &cbdata
.replies
);
4377 ofpbuf_list_delete(&cbdata
.replies
);
4384 evict_rules_from_table(struct oftable
*table
)
4385 OVS_REQUIRES(ofproto_mutex
)
4387 enum ofperr error
= 0;
4388 struct rule_collection rules
;
4389 unsigned int count
= table
->n_flows
;
4390 unsigned int max_flows
= table
->max_flows
;
4392 rule_collection_init(&rules
);
4394 while (count
-- > max_flows
) {
4397 if (!choose_rule_to_evict(table
, &rule
)) {
4398 error
= OFPERR_OFPFMFC_TABLE_FULL
;
4401 eviction_group_remove_rule(rule
);
4402 rule_collection_add(&rules
, rule
);
4405 delete_flows__(&rules
, OFPRR_EVICTION
, NULL
);
4411 get_conjunctions(const struct ofputil_flow_mod
*fm
,
4412 struct cls_conjunction
**conjsp
, size_t *n_conjsp
)
4413 OVS_REQUIRES(ofproto_mutex
)
4415 struct cls_conjunction
*conjs
= NULL
;
4418 const struct ofpact
*ofpact
;
4419 OFPACT_FOR_EACH (ofpact
, fm
->ofpacts
, fm
->ofpacts_len
) {
4420 if (ofpact
->type
== OFPACT_CONJUNCTION
) {
4422 } else if (ofpact
->type
!= OFPACT_NOTE
) {
4423 /* "conjunction" may appear with "note" actions but not with any
4424 * other type of actions. */
4425 ovs_assert(!n_conjs
);
4432 conjs
= xzalloc(n_conjs
* sizeof *conjs
);
4433 OFPACT_FOR_EACH (ofpact
, fm
->ofpacts
, fm
->ofpacts_len
) {
4434 if (ofpact
->type
== OFPACT_CONJUNCTION
) {
4435 struct ofpact_conjunction
*oc
= ofpact_get_CONJUNCTION(ofpact
);
4436 conjs
[i
].clause
= oc
->clause
;
4437 conjs
[i
].n_clauses
= oc
->n_clauses
;
4438 conjs
[i
].id
= oc
->id
;
4445 *n_conjsp
= n_conjs
;
4448 /* Implements OFPFC_ADD and the cases for OFPFC_MODIFY and OFPFC_MODIFY_STRICT
4449 * in which no matching flow already exists in the flow table.
4451 * Adds the flow specified by 'fm', to the ofproto's flow table. Returns 0 on
4452 * success, or an OpenFlow error code on failure.
4454 * On successful return the caller must complete the operation either by
4455 * calling add_flow_finish(), or add_flow_revert() if the operation needs to
4458 * The caller retains ownership of 'fm->ofpacts'. */
4460 add_flow_start(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
4461 struct rule
**old_rule
, struct rule
**new_rule
)
4462 OVS_REQUIRES(ofproto_mutex
)
4464 struct oftable
*table
;
4468 struct cls_conjunction
*conjs
;
4472 if (!check_table_id(ofproto
, fm
->table_id
)) {
4473 error
= OFPERR_OFPBRC_BAD_TABLE_ID
;
4478 if (fm
->table_id
== 0xff) {
4479 if (ofproto
->ofproto_class
->rule_choose_table
) {
4480 error
= ofproto
->ofproto_class
->rule_choose_table(ofproto
,
4486 ovs_assert(table_id
< ofproto
->n_tables
);
4490 } else if (fm
->table_id
< ofproto
->n_tables
) {
4491 table_id
= fm
->table_id
;
4493 return OFPERR_OFPBRC_BAD_TABLE_ID
;
4496 table
= &ofproto
->tables
[table_id
];
4497 if (table
->flags
& OFTABLE_READONLY
4498 && !(fm
->flags
& OFPUTIL_FF_NO_READONLY
)) {
4499 return OFPERR_OFPBRC_EPERM
;
4502 if (!(fm
->flags
& OFPUTIL_FF_HIDDEN_FIELDS
)
4503 && !match_has_default_hidden_fields(&fm
->match
)) {
4504 VLOG_WARN_RL(&rl
, "%s: (add_flow) only internal flows can set "
4505 "non-default values to hidden fields", ofproto
->name
);
4506 return OFPERR_OFPBRC_EPERM
;
4509 cls_rule_init(&cr
, &fm
->match
, fm
->priority
, ofproto
->tables_version
+ 1);
4511 /* Check for the existence of an identical rule.
4512 * This will not return rules earlier marked for removal. */
4513 rule
= rule_from_cls_rule(classifier_find_rule_exactly(&table
->cls
, &cr
));
4516 /* Check for overlap, if requested. */
4517 if (fm
->flags
& OFPUTIL_FF_CHECK_OVERLAP
4518 && classifier_rule_overlaps(&table
->cls
, &cr
)) {
4519 cls_rule_destroy(&cr
);
4520 return OFPERR_OFPFMFC_OVERLAP
;
4523 /* If necessary, evict an existing rule to clear out space. */
4524 if (table
->n_flows
>= table
->max_flows
) {
4525 if (!choose_rule_to_evict(table
, &rule
)) {
4526 error
= OFPERR_OFPFMFC_TABLE_FULL
;
4527 cls_rule_destroy(&cr
);
4530 eviction_group_remove_rule(rule
);
4531 /* Marks '*old_rule' as an evicted rule rather than replaced rule.
4533 fm
->delete_reason
= OFPRR_EVICTION
;
4537 fm
->modify_cookie
= true;
4540 /* Allocate new rule. */
4541 error
= replace_rule_create(ofproto
, fm
, &cr
, table
- ofproto
->tables
,
4547 get_conjunctions(fm
, &conjs
, &n_conjs
);
4548 replace_rule_start(ofproto
, rule
, *new_rule
, conjs
, n_conjs
);
4554 /* Revert the effects of add_flow_start(). */
4556 add_flow_revert(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
4557 struct rule
*old_rule
, struct rule
*new_rule
)
4558 OVS_REQUIRES(ofproto_mutex
)
4560 if (old_rule
&& fm
->delete_reason
== OFPRR_EVICTION
) {
4561 /* Revert the eviction. */
4562 eviction_group_add_rule(old_rule
);
4565 replace_rule_revert(ofproto
, old_rule
, new_rule
);
4568 /* To be called after version bump. */
4570 add_flow_finish(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
4571 const struct flow_mod_requester
*req
,
4572 struct rule
*old_rule
, struct rule
*new_rule
)
4573 OVS_REQUIRES(ofproto_mutex
)
4575 struct ovs_list dead_cookies
= OVS_LIST_INITIALIZER(&dead_cookies
);
4577 replace_rule_finish(ofproto
, fm
, req
, old_rule
, new_rule
, &dead_cookies
);
4578 learned_cookies_flush(ofproto
, &dead_cookies
);
4581 ovsrcu_postpone(remove_rule_rcu
, old_rule
);
4583 if (minimask_get_vid_mask(&new_rule
->cr
.match
.mask
) == VLAN_VID_MASK
) {
4584 if (ofproto
->vlan_bitmap
) {
4585 uint16_t vid
= miniflow_get_vid(&new_rule
->cr
.match
.flow
);
4587 if (!bitmap_is_set(ofproto
->vlan_bitmap
, vid
)) {
4588 bitmap_set1(ofproto
->vlan_bitmap
, vid
);
4589 ofproto
->vlans_changed
= true;
4592 ofproto
->vlans_changed
= true;
4596 ofmonitor_report(ofproto
->connmgr
, new_rule
, NXFME_ADDED
, 0,
4597 req
? req
->ofconn
: NULL
,
4598 req
? req
->request
->xid
: 0, NULL
);
4601 send_buffered_packet(req
, fm
->buffer_id
, new_rule
);
4604 /* OFPFC_MODIFY and OFPFC_MODIFY_STRICT. */
4606 /* Create a new rule based on attributes in 'fm', match in 'cr', 'table_id',
4607 * and 'old_rule'. Note that the rule is NOT inserted into a any data
4608 * structures yet. Takes ownership of 'cr'. */
4610 replace_rule_create(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
4611 struct cls_rule
*cr
, uint8_t table_id
,
4612 struct rule
*old_rule
, struct rule
**new_rule
)
4617 /* Allocate new rule. */
4618 rule
= ofproto
->ofproto_class
->rule_alloc();
4620 cls_rule_destroy(cr
);
4621 VLOG_WARN_RL(&rl
, "%s: failed to allocate a rule.", ofproto
->name
);
4622 return OFPERR_OFPFMFC_UNKNOWN
;
4625 /* Initialize base state. */
4626 *CONST_CAST(struct ofproto
**, &rule
->ofproto
) = ofproto
;
4627 cls_rule_move(CONST_CAST(struct cls_rule
*, &rule
->cr
), cr
);
4628 ovs_refcount_init(&rule
->ref_count
);
4629 rule
->flow_cookie
= fm
->new_cookie
;
4630 rule
->created
= rule
->modified
= time_msec();
4632 ovs_mutex_init(&rule
->mutex
);
4633 ovs_mutex_lock(&rule
->mutex
);
4634 rule
->idle_timeout
= fm
->idle_timeout
;
4635 rule
->hard_timeout
= fm
->hard_timeout
;
4636 *CONST_CAST(uint16_t *, &rule
->importance
) = fm
->importance
;
4637 rule
->removed_reason
= OVS_OFPRR_NONE
;
4639 *CONST_CAST(uint8_t *, &rule
->table_id
) = table_id
;
4640 rule
->flags
= fm
->flags
& OFPUTIL_FF_STATE
;
4641 *CONST_CAST(const struct rule_actions
**, &rule
->actions
)
4642 = rule_actions_create(fm
->ofpacts
, fm
->ofpacts_len
);
4643 list_init(&rule
->meter_list_node
);
4644 rule
->eviction_group
= NULL
;
4645 list_init(&rule
->expirable
);
4646 rule
->monitor_flags
= 0;
4647 rule
->add_seqno
= 0;
4648 rule
->modify_seqno
= 0;
4650 /* Copy values from old rule for modify semantics. */
4651 if (old_rule
&& fm
->delete_reason
!= OFPRR_EVICTION
) {
4652 bool change_cookie
= (fm
->modify_cookie
4653 && fm
->new_cookie
!= OVS_BE64_MAX
4654 && fm
->new_cookie
!= old_rule
->flow_cookie
);
4656 ovs_mutex_lock(&old_rule
->mutex
);
4657 if (fm
->command
!= OFPFC_ADD
) {
4658 rule
->idle_timeout
= old_rule
->idle_timeout
;
4659 rule
->hard_timeout
= old_rule
->hard_timeout
;
4660 *CONST_CAST(uint16_t *, &rule
->importance
) = old_rule
->importance
;
4661 rule
->flags
= old_rule
->flags
;
4662 rule
->created
= old_rule
->created
;
4664 if (!change_cookie
) {
4665 rule
->flow_cookie
= old_rule
->flow_cookie
;
4667 ovs_mutex_unlock(&old_rule
->mutex
);
4669 ovs_mutex_unlock(&rule
->mutex
);
4671 /* Construct rule, initializing derived state. */
4672 error
= ofproto
->ofproto_class
->rule_construct(rule
);
4674 ofproto_rule_destroy__(rule
);
4678 rule
->removed
= true; /* Not yet in ofproto data structures. */
4685 replace_rule_start(struct ofproto
*ofproto
,
4686 struct rule
*old_rule
, struct rule
*new_rule
,
4687 struct cls_conjunction
*conjs
, size_t n_conjs
)
4689 struct oftable
*table
= &ofproto
->tables
[new_rule
->table_id
];
4691 /* 'old_rule' may be either an evicted rule or replaced rule. */
4693 /* Mark the old rule for removal in the next version. */
4694 cls_rule_make_invisible_in_version(&old_rule
->cr
,
4695 ofproto
->tables_version
+ 1);
4699 /* Insert flow to the classifier, so that later flow_mods may relate
4700 * to it. This is reversible, in case later errors require this to
4702 ofproto_rule_insert__(ofproto
, new_rule
);
4703 /* Make the new rule visible for classifier lookups only from the next
4705 classifier_insert(&table
->cls
, &new_rule
->cr
, conjs
, n_conjs
);
4708 static void replace_rule_revert(struct ofproto
*ofproto
,
4709 struct rule
*old_rule
, struct rule
*new_rule
)
4711 struct oftable
*table
= &ofproto
->tables
[new_rule
->table_id
];
4714 /* Restore the original visibility of the old rule. */
4715 cls_rule_restore_visibility(&old_rule
->cr
);
4717 /* Restore table's rule count. */
4721 /* Remove the new rule immediately. It was never visible to lookups. */
4722 if (!classifier_remove(&table
->cls
, &new_rule
->cr
)) {
4725 ofproto_rule_remove__(ofproto
, new_rule
);
4726 /* The rule was not inserted to the ofproto provider, so we can
4727 * release it without deleting it from the ofproto provider. */
4728 ofproto_rule_unref(new_rule
);
4731 /* Adds the 'new_rule', replacing the 'old_rule'. */
4733 replace_rule_finish(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
4734 const struct flow_mod_requester
*req
,
4735 struct rule
*old_rule
, struct rule
*new_rule
,
4736 struct ovs_list
*dead_cookies
)
4737 OVS_REQUIRES(ofproto_mutex
)
4739 bool forward_stats
= !(fm
->flags
& OFPUTIL_FF_RESET_COUNTS
);
4740 struct rule
*replaced_rule
;
4742 replaced_rule
= fm
->delete_reason
!= OFPRR_EVICTION
? old_rule
: NULL
;
4744 /* Insert the new flow to the ofproto provider. A non-NULL 'replaced_rule'
4745 * is a duplicate rule the 'new_rule' is replacing. The provider should
4746 * link the stats from the old rule to the new one if 'forward_stats' is
4747 * 'true'. The 'replaced_rule' will be deleted right after this call. */
4748 ofproto
->ofproto_class
->rule_insert(new_rule
, replaced_rule
,
4750 learned_cookies_inc(ofproto
, rule_get_actions(new_rule
));
4753 const struct rule_actions
*old_actions
= rule_get_actions(old_rule
);
4755 /* Remove the old rule from data structures. Removal from the
4756 * classifier and the deletion of the rule is RCU postponed by the
4758 ofproto_rule_remove__(ofproto
, old_rule
);
4759 learned_cookies_dec(ofproto
, old_actions
, dead_cookies
);
4761 if (replaced_rule
) {
4762 enum nx_flow_update_event event
= fm
->command
== OFPFC_ADD
4763 ? NXFME_ADDED
: NXFME_MODIFIED
;
4765 bool change_cookie
= (fm
->modify_cookie
4766 && fm
->new_cookie
!= OVS_BE64_MAX
4767 && fm
->new_cookie
!= old_rule
->flow_cookie
);
4769 bool change_actions
= !ofpacts_equal(fm
->ofpacts
,
4771 old_actions
->ofpacts
,
4772 old_actions
->ofpacts_len
);
4774 if (event
!= NXFME_MODIFIED
|| change_actions
|| change_cookie
) {
4775 ofmonitor_report(ofproto
->connmgr
, new_rule
, event
, 0,
4776 req
? req
->ofconn
: NULL
,
4777 req
? req
->request
->xid
: 0,
4778 change_actions
? old_actions
: NULL
);
4781 /* XXX: This is slight duplication with delete_flows_finish__() */
4783 old_rule
->removed_reason
= OFPRR_EVICTION
;
4785 ofmonitor_report(ofproto
->connmgr
, old_rule
, NXFME_DELETED
,
4787 req
? req
->ofconn
: NULL
,
4788 req
? req
->request
->xid
: 0, NULL
);
4794 modify_flows_start__(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
4795 struct rule_collection
*old_rules
,
4796 struct rule_collection
*new_rules
)
4797 OVS_REQUIRES(ofproto_mutex
)
4801 rule_collection_init(new_rules
);
4803 if (old_rules
->n
> 0) {
4804 struct cls_conjunction
*conjs
;
4808 /* Create a new 'modified' rule for each old rule. */
4809 for (i
= 0; i
< old_rules
->n
; i
++) {
4810 struct rule
*old_rule
= old_rules
->rules
[i
];
4811 struct rule
*new_rule
;
4814 cls_rule_clone_in_version(&cr
, &old_rule
->cr
,
4815 ofproto
->tables_version
+ 1);
4816 error
= replace_rule_create(ofproto
, fm
, &cr
, old_rule
->table_id
,
4817 old_rule
, &new_rule
);
4819 rule_collection_add(new_rules
, new_rule
);
4821 rule_collection_unref(new_rules
);
4822 rule_collection_destroy(new_rules
);
4826 ovs_assert(new_rules
->n
== old_rules
->n
);
4828 get_conjunctions(fm
, &conjs
, &n_conjs
);
4829 for (i
= 0; i
< old_rules
->n
; i
++) {
4830 replace_rule_start(ofproto
, old_rules
->rules
[i
],
4831 new_rules
->rules
[i
], conjs
, n_conjs
);
4834 } else if (!(fm
->cookie_mask
!= htonll(0)
4835 || fm
->new_cookie
== OVS_BE64_MAX
)) {
4836 /* No match, add a new flow. */
4837 error
= add_flow_start(ofproto
, fm
, &old_rules
->rules
[0],
4838 &new_rules
->rules
[0]);
4840 ovs_assert(fm
->delete_reason
== OFPRR_EVICTION
4841 || !old_rules
->rules
[0]);
4851 /* Implements OFPFC_MODIFY. Returns 0 on success or an OpenFlow error code on
4854 * 'ofconn' is used to retrieve the packet buffer specified in fm->buffer_id,
4857 modify_flows_start_loose(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
4858 struct rule_collection
*old_rules
,
4859 struct rule_collection
*new_rules
)
4860 OVS_REQUIRES(ofproto_mutex
)
4862 struct rule_criteria criteria
;
4865 rule_criteria_init(&criteria
, fm
->table_id
, &fm
->match
, 0, CLS_MAX_VERSION
,
4866 fm
->cookie
, fm
->cookie_mask
, OFPP_ANY
, OFPG11_ANY
);
4867 rule_criteria_require_rw(&criteria
,
4868 (fm
->flags
& OFPUTIL_FF_NO_READONLY
) != 0);
4869 error
= collect_rules_loose(ofproto
, &criteria
, old_rules
);
4870 rule_criteria_destroy(&criteria
);
4873 error
= modify_flows_start__(ofproto
, fm
, old_rules
, new_rules
);
4877 rule_collection_destroy(old_rules
);
4883 modify_flows_revert(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
4884 struct rule_collection
*old_rules
,
4885 struct rule_collection
*new_rules
)
4886 OVS_REQUIRES(ofproto_mutex
)
4888 /* Old rules were not changed yet, only need to revert new rules. */
4889 if (old_rules
->n
== 0 && new_rules
->n
== 1) {
4890 add_flow_revert(ofproto
, fm
, old_rules
->rules
[0], new_rules
->rules
[0]);
4891 } else if (old_rules
->n
> 0) {
4892 for (size_t i
= 0; i
< old_rules
->n
; i
++) {
4893 replace_rule_revert(ofproto
, old_rules
->rules
[i
],
4894 new_rules
->rules
[i
]);
4896 rule_collection_destroy(new_rules
);
4897 rule_collection_destroy(old_rules
);
4902 modify_flows_finish(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
4903 const struct flow_mod_requester
*req
,
4904 struct rule_collection
*old_rules
,
4905 struct rule_collection
*new_rules
)
4906 OVS_REQUIRES(ofproto_mutex
)
4908 if (old_rules
->n
== 0 && new_rules
->n
== 1) {
4909 add_flow_finish(ofproto
, fm
, req
, old_rules
->rules
[0],
4910 new_rules
->rules
[0]);
4911 } else if (old_rules
->n
> 0) {
4912 struct ovs_list dead_cookies
= OVS_LIST_INITIALIZER(&dead_cookies
);
4914 ovs_assert(new_rules
->n
== old_rules
->n
);
4916 for (size_t i
= 0; i
< old_rules
->n
; i
++) {
4917 replace_rule_finish(ofproto
, fm
, req
, old_rules
->rules
[i
],
4918 new_rules
->rules
[i
], &dead_cookies
);
4920 learned_cookies_flush(ofproto
, &dead_cookies
);
4921 rule_collection_remove_postponed(old_rules
);
4923 send_buffered_packet(req
, fm
->buffer_id
, new_rules
->rules
[0]);
4924 rule_collection_destroy(new_rules
);
4928 /* Implements OFPFC_MODIFY_STRICT. Returns 0 on success or an OpenFlow error
4929 * code on failure. */
4931 modify_flow_start_strict(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
4932 struct rule_collection
*old_rules
,
4933 struct rule_collection
*new_rules
)
4934 OVS_REQUIRES(ofproto_mutex
)
4936 struct rule_criteria criteria
;
4939 rule_criteria_init(&criteria
, fm
->table_id
, &fm
->match
, fm
->priority
,
4940 CLS_MAX_VERSION
, fm
->cookie
, fm
->cookie_mask
, OFPP_ANY
,
4942 rule_criteria_require_rw(&criteria
,
4943 (fm
->flags
& OFPUTIL_FF_NO_READONLY
) != 0);
4944 error
= collect_rules_strict(ofproto
, &criteria
, old_rules
);
4945 rule_criteria_destroy(&criteria
);
4948 /* collect_rules_strict() can return max 1 rule. */
4949 error
= modify_flows_start__(ofproto
, fm
, old_rules
, new_rules
);
4953 rule_collection_destroy(old_rules
);
4958 /* OFPFC_DELETE implementation. */
4961 delete_flows_start__(struct ofproto
*ofproto
,
4962 const struct rule_collection
*rules
)
4963 OVS_REQUIRES(ofproto_mutex
)
4965 for (size_t i
= 0; i
< rules
->n
; i
++) {
4966 struct rule
*rule
= rules
->rules
[i
];
4967 struct oftable
*table
= &ofproto
->tables
[rule
->table_id
];
4970 cls_rule_make_invisible_in_version(&rule
->cr
,
4971 ofproto
->tables_version
+ 1);
4976 delete_flows_finish__(struct ofproto
*ofproto
,
4977 struct rule_collection
*rules
,
4978 enum ofp_flow_removed_reason reason
,
4979 const struct flow_mod_requester
*req
)
4980 OVS_REQUIRES(ofproto_mutex
)
4983 struct ovs_list dead_cookies
= OVS_LIST_INITIALIZER(&dead_cookies
);
4985 for (size_t i
= 0; i
< rules
->n
; i
++) {
4986 struct rule
*rule
= rules
->rules
[i
];
4988 /* This value will be used to send the flow removed message right
4989 * before the rule is actually destroyed. */
4990 rule
->removed_reason
= reason
;
4992 ofmonitor_report(ofproto
->connmgr
, rule
, NXFME_DELETED
, reason
,
4993 req
? req
->ofconn
: NULL
,
4994 req
? req
->request
->xid
: 0, NULL
);
4995 ofproto_rule_remove__(ofproto
, rule
);
4996 learned_cookies_dec(ofproto
, rule_get_actions(rule
),
4999 rule_collection_remove_postponed(rules
);
5001 learned_cookies_flush(ofproto
, &dead_cookies
);
5005 /* Deletes the rules listed in 'rules'.
5006 * The deleted rules will become invisible to the lookups in the next version.
5007 * Destroys 'rules'. */
5009 delete_flows__(struct rule_collection
*rules
,
5010 enum ofp_flow_removed_reason reason
,
5011 const struct flow_mod_requester
*req
)
5012 OVS_REQUIRES(ofproto_mutex
)
5015 struct ofproto
*ofproto
= rules
->rules
[0]->ofproto
;
5017 delete_flows_start__(ofproto
, rules
);
5018 ofproto_bump_tables_version(ofproto
);
5019 delete_flows_finish__(ofproto
, rules
, reason
, req
);
5020 ofmonitor_flush(ofproto
->connmgr
);
5024 /* Implements OFPFC_DELETE. */
5026 delete_flows_start_loose(struct ofproto
*ofproto
,
5027 const struct ofputil_flow_mod
*fm
,
5028 struct rule_collection
*rules
)
5029 OVS_REQUIRES(ofproto_mutex
)
5031 struct rule_criteria criteria
;
5034 rule_criteria_init(&criteria
, fm
->table_id
, &fm
->match
, 0, CLS_MAX_VERSION
,
5035 fm
->cookie
, fm
->cookie_mask
, fm
->out_port
,
5037 rule_criteria_require_rw(&criteria
,
5038 (fm
->flags
& OFPUTIL_FF_NO_READONLY
) != 0);
5039 error
= collect_rules_loose(ofproto
, &criteria
, rules
);
5040 rule_criteria_destroy(&criteria
);
5043 delete_flows_start__(ofproto
, rules
);
5050 delete_flows_revert(struct ofproto
*ofproto
,
5051 struct rule_collection
*rules
)
5052 OVS_REQUIRES(ofproto_mutex
)
5054 for (size_t i
= 0; i
< rules
->n
; i
++) {
5055 struct rule
*rule
= rules
->rules
[i
];
5056 struct oftable
*table
= &ofproto
->tables
[rule
->table_id
];
5058 /* Restore table's rule count. */
5061 /* Restore the original visibility of the rule. */
5062 cls_rule_restore_visibility(&rule
->cr
);
5064 rule_collection_destroy(rules
);
5068 delete_flows_finish(struct ofproto
*ofproto
,
5069 const struct ofputil_flow_mod
*fm
,
5070 const struct flow_mod_requester
*req
,
5071 struct rule_collection
*rules
)
5072 OVS_REQUIRES(ofproto_mutex
)
5074 delete_flows_finish__(ofproto
, rules
, fm
->delete_reason
, req
);
5077 /* Implements OFPFC_DELETE_STRICT. */
5079 delete_flow_start_strict(struct ofproto
*ofproto
,
5080 const struct ofputil_flow_mod
*fm
,
5081 struct rule_collection
*rules
)
5082 OVS_REQUIRES(ofproto_mutex
)
5084 struct rule_criteria criteria
;
5087 rule_criteria_init(&criteria
, fm
->table_id
, &fm
->match
, fm
->priority
,
5088 CLS_MAX_VERSION
, fm
->cookie
, fm
->cookie_mask
,
5089 fm
->out_port
, fm
->out_group
);
5090 rule_criteria_require_rw(&criteria
,
5091 (fm
->flags
& OFPUTIL_FF_NO_READONLY
) != 0);
5092 error
= collect_rules_strict(ofproto
, &criteria
, rules
);
5093 rule_criteria_destroy(&criteria
);
5096 delete_flows_start__(ofproto
, rules
);
5102 /* This may only be called by rule_destroy_cb()! */
5104 ofproto_rule_send_removed(struct rule
*rule
)
5105 OVS_EXCLUDED(ofproto_mutex
)
5107 struct ofputil_flow_removed fr
;
5110 minimatch_expand(&rule
->cr
.match
, &fr
.match
);
5111 fr
.priority
= rule
->cr
.priority
;
5113 ovs_mutex_lock(&ofproto_mutex
);
5114 fr
.cookie
= rule
->flow_cookie
;
5115 fr
.reason
= rule
->removed_reason
;
5116 fr
.table_id
= rule
->table_id
;
5117 calc_duration(rule
->created
, time_msec(),
5118 &fr
.duration_sec
, &fr
.duration_nsec
);
5119 ovs_mutex_lock(&rule
->mutex
);
5120 fr
.idle_timeout
= rule
->idle_timeout
;
5121 fr
.hard_timeout
= rule
->hard_timeout
;
5122 ovs_mutex_unlock(&rule
->mutex
);
5123 rule
->ofproto
->ofproto_class
->rule_get_stats(rule
, &fr
.packet_count
,
5124 &fr
.byte_count
, &used
);
5125 connmgr_send_flow_removed(rule
->ofproto
->connmgr
, &fr
);
5126 ovs_mutex_unlock(&ofproto_mutex
);
5129 /* Sends an OpenFlow "flow removed" message with the given 'reason' (either
5130 * OFPRR_HARD_TIMEOUT or OFPRR_IDLE_TIMEOUT), and then removes 'rule' from its
5133 * ofproto implementation ->run() functions should use this function to expire
5134 * OpenFlow flows. */
5136 ofproto_rule_expire(struct rule
*rule
, uint8_t reason
)
5137 OVS_REQUIRES(ofproto_mutex
)
5139 struct rule_collection rules
;
5141 rules
.rules
= rules
.stub
;
5143 rules
.stub
[0] = rule
;
5144 delete_flows__(&rules
, reason
, NULL
);
5147 /* Reduces '*timeout' to no more than 'max'. A value of zero in either case
5148 * means "infinite". */
5150 reduce_timeout(uint16_t max
, uint16_t *timeout
)
5152 if (max
&& (!*timeout
|| *timeout
> max
)) {
5157 /* If 'idle_timeout' is nonzero, and 'rule' has no idle timeout or an idle
5158 * timeout greater than 'idle_timeout', lowers 'rule''s idle timeout to
5159 * 'idle_timeout' seconds. Similarly for 'hard_timeout'.
5161 * Suitable for implementing OFPACT_FIN_TIMEOUT. */
5163 ofproto_rule_reduce_timeouts(struct rule
*rule
,
5164 uint16_t idle_timeout
, uint16_t hard_timeout
)
5165 OVS_EXCLUDED(ofproto_mutex
, rule
->mutex
)
5167 if (!idle_timeout
&& !hard_timeout
) {
5171 ovs_mutex_lock(&ofproto_mutex
);
5172 if (list_is_empty(&rule
->expirable
)) {
5173 list_insert(&rule
->ofproto
->expirable
, &rule
->expirable
);
5175 ovs_mutex_unlock(&ofproto_mutex
);
5177 ovs_mutex_lock(&rule
->mutex
);
5178 reduce_timeout(idle_timeout
, &rule
->idle_timeout
);
5179 reduce_timeout(hard_timeout
, &rule
->hard_timeout
);
5180 ovs_mutex_unlock(&rule
->mutex
);
5184 handle_flow_mod(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
5185 OVS_EXCLUDED(ofproto_mutex
)
5187 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
5188 struct ofputil_flow_mod fm
;
5189 uint64_t ofpacts_stub
[1024 / 8];
5190 struct ofpbuf ofpacts
;
5193 error
= reject_slave_controller(ofconn
);
5198 ofpbuf_use_stub(&ofpacts
, ofpacts_stub
, sizeof ofpacts_stub
);
5199 error
= ofputil_decode_flow_mod(&fm
, oh
, ofconn_get_protocol(ofconn
),
5201 u16_to_ofp(ofproto
->max_ports
),
5204 error
= ofproto_check_ofpacts(ofproto
, fm
.ofpacts
, fm
.ofpacts_len
);
5207 struct flow_mod_requester req
;
5209 req
.ofconn
= ofconn
;
5211 error
= handle_flow_mod__(ofproto
, &fm
, &req
);
5214 goto exit_free_ofpacts
;
5217 ofconn_report_flow_mod(ofconn
, fm
.command
);
5220 ofpbuf_uninit(&ofpacts
);
5226 handle_flow_mod__(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
5227 const struct flow_mod_requester
*req
)
5228 OVS_EXCLUDED(ofproto_mutex
)
5230 struct ofp_bundle_entry be
;
5233 ovs_mutex_lock(&ofproto_mutex
);
5234 error
= do_bundle_flow_mod_start(ofproto
, fm
, &be
);
5236 ofproto_bump_tables_version(ofproto
);
5237 do_bundle_flow_mod_finish(ofproto
, fm
, req
, &be
);
5239 ofmonitor_flush(ofproto
->connmgr
);
5240 ovs_mutex_unlock(&ofproto_mutex
);
5242 run_rule_executes(ofproto
);
5247 handle_role_request(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
5249 struct ofputil_role_request request
;
5250 struct ofputil_role_request reply
;
5254 error
= ofputil_decode_role_message(oh
, &request
);
5259 if (request
.role
!= OFPCR12_ROLE_NOCHANGE
) {
5260 if (request
.have_generation_id
5261 && !ofconn_set_master_election_id(ofconn
, request
.generation_id
)) {
5262 return OFPERR_OFPRRFC_STALE
;
5265 ofconn_set_role(ofconn
, request
.role
);
5268 reply
.role
= ofconn_get_role(ofconn
);
5269 reply
.have_generation_id
= ofconn_get_master_election_id(
5270 ofconn
, &reply
.generation_id
);
5271 buf
= ofputil_encode_role_reply(oh
, &reply
);
5272 ofconn_send_reply(ofconn
, buf
);
5278 handle_nxt_flow_mod_table_id(struct ofconn
*ofconn
,
5279 const struct ofp_header
*oh
)
5281 const struct nx_flow_mod_table_id
*msg
= ofpmsg_body(oh
);
5282 enum ofputil_protocol cur
, next
;
5284 cur
= ofconn_get_protocol(ofconn
);
5285 next
= ofputil_protocol_set_tid(cur
, msg
->set
!= 0);
5286 ofconn_set_protocol(ofconn
, next
);
5292 handle_nxt_set_flow_format(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
5294 const struct nx_set_flow_format
*msg
= ofpmsg_body(oh
);
5295 enum ofputil_protocol cur
, next
;
5296 enum ofputil_protocol next_base
;
5298 next_base
= ofputil_nx_flow_format_to_protocol(ntohl(msg
->format
));
5300 return OFPERR_OFPBRC_EPERM
;
5303 cur
= ofconn_get_protocol(ofconn
);
5304 next
= ofputil_protocol_set_base(cur
, next_base
);
5305 ofconn_set_protocol(ofconn
, next
);
5311 handle_nxt_set_packet_in_format(struct ofconn
*ofconn
,
5312 const struct ofp_header
*oh
)
5314 const struct nx_set_packet_in_format
*msg
= ofpmsg_body(oh
);
5317 format
= ntohl(msg
->format
);
5318 if (format
!= NXPIF_OPENFLOW10
&& format
!= NXPIF_NXM
) {
5319 return OFPERR_OFPBRC_EPERM
;
5322 ofconn_set_packet_in_format(ofconn
, format
);
5327 handle_nxt_set_async_config(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
5329 const struct nx_async_config
*msg
= ofpmsg_body(oh
);
5330 uint32_t master
[OAM_N_TYPES
];
5331 uint32_t slave
[OAM_N_TYPES
];
5333 master
[OAM_PACKET_IN
] = ntohl(msg
->packet_in_mask
[0]);
5334 master
[OAM_PORT_STATUS
] = ntohl(msg
->port_status_mask
[0]);
5335 master
[OAM_FLOW_REMOVED
] = ntohl(msg
->flow_removed_mask
[0]);
5337 slave
[OAM_PACKET_IN
] = ntohl(msg
->packet_in_mask
[1]);
5338 slave
[OAM_PORT_STATUS
] = ntohl(msg
->port_status_mask
[1]);
5339 slave
[OAM_FLOW_REMOVED
] = ntohl(msg
->flow_removed_mask
[1]);
5341 ofconn_set_async_config(ofconn
, master
, slave
);
5342 if (ofconn_get_type(ofconn
) == OFCONN_SERVICE
&&
5343 !ofconn_get_miss_send_len(ofconn
)) {
5344 ofconn_set_miss_send_len(ofconn
, OFP_DEFAULT_MISS_SEND_LEN
);
5351 handle_nxt_get_async_request(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
5354 uint32_t master
[OAM_N_TYPES
];
5355 uint32_t slave
[OAM_N_TYPES
];
5356 struct nx_async_config
*msg
;
5358 ofconn_get_async_config(ofconn
, master
, slave
);
5359 buf
= ofpraw_alloc_reply(OFPRAW_OFPT13_GET_ASYNC_REPLY
, oh
, 0);
5360 msg
= ofpbuf_put_zeros(buf
, sizeof *msg
);
5362 msg
->packet_in_mask
[0] = htonl(master
[OAM_PACKET_IN
]);
5363 msg
->port_status_mask
[0] = htonl(master
[OAM_PORT_STATUS
]);
5364 msg
->flow_removed_mask
[0] = htonl(master
[OAM_FLOW_REMOVED
]);
5366 msg
->packet_in_mask
[1] = htonl(slave
[OAM_PACKET_IN
]);
5367 msg
->port_status_mask
[1] = htonl(slave
[OAM_PORT_STATUS
]);
5368 msg
->flow_removed_mask
[1] = htonl(slave
[OAM_FLOW_REMOVED
]);
5370 ofconn_send_reply(ofconn
, buf
);
5376 handle_nxt_set_controller_id(struct ofconn
*ofconn
,
5377 const struct ofp_header
*oh
)
5379 const struct nx_controller_id
*nci
= ofpmsg_body(oh
);
5381 if (!is_all_zeros(nci
->zero
, sizeof nci
->zero
)) {
5382 return OFPERR_NXBRC_MUST_BE_ZERO
;
5385 ofconn_set_controller_id(ofconn
, ntohs(nci
->controller_id
));
5390 handle_barrier_request(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
5394 buf
= ofpraw_alloc_reply((oh
->version
== OFP10_VERSION
5395 ? OFPRAW_OFPT10_BARRIER_REPLY
5396 : OFPRAW_OFPT11_BARRIER_REPLY
), oh
, 0);
5397 ofconn_send_reply(ofconn
, buf
);
5402 ofproto_compose_flow_refresh_update(const struct rule
*rule
,
5403 enum nx_flow_monitor_flags flags
,
5404 struct ovs_list
*msgs
)
5405 OVS_REQUIRES(ofproto_mutex
)
5407 const struct rule_actions
*actions
;
5408 struct ofputil_flow_update fu
;
5411 fu
.event
= (flags
& (NXFMF_INITIAL
| NXFMF_ADD
)
5412 ? NXFME_ADDED
: NXFME_MODIFIED
);
5414 ovs_mutex_lock(&rule
->mutex
);
5415 fu
.idle_timeout
= rule
->idle_timeout
;
5416 fu
.hard_timeout
= rule
->hard_timeout
;
5417 ovs_mutex_unlock(&rule
->mutex
);
5418 fu
.table_id
= rule
->table_id
;
5419 fu
.cookie
= rule
->flow_cookie
;
5420 minimatch_expand(&rule
->cr
.match
, &match
);
5422 fu
.priority
= rule
->cr
.priority
;
5424 actions
= flags
& NXFMF_ACTIONS
? rule_get_actions(rule
) : NULL
;
5425 fu
.ofpacts
= actions
? actions
->ofpacts
: NULL
;
5426 fu
.ofpacts_len
= actions
? actions
->ofpacts_len
: 0;
5428 if (list_is_empty(msgs
)) {
5429 ofputil_start_flow_update(msgs
);
5431 ofputil_append_flow_update(&fu
, msgs
);
5435 ofmonitor_compose_refresh_updates(struct rule_collection
*rules
,
5436 struct ovs_list
*msgs
)
5437 OVS_REQUIRES(ofproto_mutex
)
5441 for (i
= 0; i
< rules
->n
; i
++) {
5442 struct rule
*rule
= rules
->rules
[i
];
5443 enum nx_flow_monitor_flags flags
= rule
->monitor_flags
;
5444 rule
->monitor_flags
= 0;
5446 ofproto_compose_flow_refresh_update(rule
, flags
, msgs
);
5451 ofproto_collect_ofmonitor_refresh_rule(const struct ofmonitor
*m
,
5452 struct rule
*rule
, uint64_t seqno
,
5453 struct rule_collection
*rules
)
5454 OVS_REQUIRES(ofproto_mutex
)
5456 enum nx_flow_monitor_flags update
;
5458 if (rule_is_hidden(rule
)) {
5462 if (!ofproto_rule_has_out_port(rule
, m
->out_port
)) {
5467 if (rule
->add_seqno
> seqno
) {
5468 update
= NXFMF_ADD
| NXFMF_MODIFY
;
5469 } else if (rule
->modify_seqno
> seqno
) {
5470 update
= NXFMF_MODIFY
;
5475 if (!(m
->flags
& update
)) {
5479 update
= NXFMF_INITIAL
;
5482 if (!rule
->monitor_flags
) {
5483 rule_collection_add(rules
, rule
);
5485 rule
->monitor_flags
|= update
| (m
->flags
& NXFMF_ACTIONS
);
5489 ofproto_collect_ofmonitor_refresh_rules(const struct ofmonitor
*m
,
5491 struct rule_collection
*rules
)
5492 OVS_REQUIRES(ofproto_mutex
)
5494 const struct ofproto
*ofproto
= ofconn_get_ofproto(m
->ofconn
);
5495 const struct oftable
*table
;
5496 struct cls_rule target
;
5498 cls_rule_init_from_minimatch(&target
, &m
->match
, 0, CLS_MAX_VERSION
);
5499 FOR_EACH_MATCHING_TABLE (table
, m
->table_id
, ofproto
) {
5502 CLS_FOR_EACH_TARGET (rule
, cr
, &table
->cls
, &target
) {
5503 ofproto_collect_ofmonitor_refresh_rule(m
, rule
, seqno
, rules
);
5506 cls_rule_destroy(&target
);
5510 ofproto_collect_ofmonitor_initial_rules(struct ofmonitor
*m
,
5511 struct rule_collection
*rules
)
5512 OVS_REQUIRES(ofproto_mutex
)
5514 if (m
->flags
& NXFMF_INITIAL
) {
5515 ofproto_collect_ofmonitor_refresh_rules(m
, 0, rules
);
5520 ofmonitor_collect_resume_rules(struct ofmonitor
*m
,
5521 uint64_t seqno
, struct rule_collection
*rules
)
5522 OVS_REQUIRES(ofproto_mutex
)
5524 ofproto_collect_ofmonitor_refresh_rules(m
, seqno
, rules
);
5528 flow_monitor_delete(struct ofconn
*ofconn
, uint32_t id
)
5529 OVS_REQUIRES(ofproto_mutex
)
5531 struct ofmonitor
*m
;
5534 m
= ofmonitor_lookup(ofconn
, id
);
5536 ofmonitor_destroy(m
);
5539 error
= OFPERR_OFPMOFC_UNKNOWN_MONITOR
;
5546 handle_flow_monitor_request(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
5547 OVS_EXCLUDED(ofproto_mutex
)
5549 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
5550 struct ofmonitor
**monitors
;
5551 size_t n_monitors
, allocated_monitors
;
5552 struct rule_collection rules
;
5553 struct ovs_list replies
;
5558 ofpbuf_use_const(&b
, oh
, ntohs(oh
->length
));
5560 n_monitors
= allocated_monitors
= 0;
5562 ovs_mutex_lock(&ofproto_mutex
);
5564 struct ofputil_flow_monitor_request request
;
5565 struct ofmonitor
*m
;
5568 retval
= ofputil_decode_flow_monitor_request(&request
, &b
);
5569 if (retval
== EOF
) {
5571 } else if (retval
) {
5576 if (request
.table_id
!= 0xff
5577 && request
.table_id
>= ofproto
->n_tables
) {
5578 error
= OFPERR_OFPBRC_BAD_TABLE_ID
;
5582 error
= ofmonitor_create(&request
, ofconn
, &m
);
5587 if (n_monitors
>= allocated_monitors
) {
5588 monitors
= x2nrealloc(monitors
, &allocated_monitors
,
5591 monitors
[n_monitors
++] = m
;
5594 rule_collection_init(&rules
);
5595 for (i
= 0; i
< n_monitors
; i
++) {
5596 ofproto_collect_ofmonitor_initial_rules(monitors
[i
], &rules
);
5599 ofpmp_init(&replies
, oh
);
5600 ofmonitor_compose_refresh_updates(&rules
, &replies
);
5601 ovs_mutex_unlock(&ofproto_mutex
);
5603 rule_collection_destroy(&rules
);
5605 ofconn_send_replies(ofconn
, &replies
);
5611 for (i
= 0; i
< n_monitors
; i
++) {
5612 ofmonitor_destroy(monitors
[i
]);
5615 ovs_mutex_unlock(&ofproto_mutex
);
5621 handle_flow_monitor_cancel(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
5622 OVS_EXCLUDED(ofproto_mutex
)
5627 id
= ofputil_decode_flow_monitor_cancel(oh
);
5629 ovs_mutex_lock(&ofproto_mutex
);
5630 error
= flow_monitor_delete(ofconn
, id
);
5631 ovs_mutex_unlock(&ofproto_mutex
);
5636 /* Meters implementation.
5638 * Meter table entry, indexed by the OpenFlow meter_id.
5639 * 'created' is used to compute the duration for meter stats.
5640 * 'list rules' is needed so that we can delete the dependent rules when the
5641 * meter table entry is deleted.
5642 * 'provider_meter_id' is for the provider's private use.
5645 long long int created
; /* Time created. */
5646 struct ovs_list rules
; /* List of "struct rule_dpif"s. */
5647 ofproto_meter_id provider_meter_id
;
5648 uint16_t flags
; /* Meter flags. */
5649 uint16_t n_bands
; /* Number of meter bands. */
5650 struct ofputil_meter_band
*bands
;
5654 * This is used in instruction validation at flow set-up time,
5655 * as flows may not use non-existing meters.
5656 * Return value of UINT32_MAX signifies an invalid meter.
5659 get_provider_meter_id(const struct ofproto
*ofproto
, uint32_t of_meter_id
)
5661 if (of_meter_id
&& of_meter_id
<= ofproto
->meter_features
.max_meters
) {
5662 const struct meter
*meter
= ofproto
->meters
[of_meter_id
];
5664 return meter
->provider_meter_id
.uint32
;
5670 /* Finds the meter invoked by 'rule''s actions and adds 'rule' to the meter's
5673 meter_insert_rule(struct rule
*rule
)
5675 const struct rule_actions
*a
= rule_get_actions(rule
);
5676 uint32_t meter_id
= ofpacts_get_meter(a
->ofpacts
, a
->ofpacts_len
);
5677 struct meter
*meter
= rule
->ofproto
->meters
[meter_id
];
5679 list_insert(&meter
->rules
, &rule
->meter_list_node
);
5683 meter_update(struct meter
*meter
, const struct ofputil_meter_config
*config
)
5687 meter
->flags
= config
->flags
;
5688 meter
->n_bands
= config
->n_bands
;
5689 meter
->bands
= xmemdup(config
->bands
,
5690 config
->n_bands
* sizeof *meter
->bands
);
5693 static struct meter
*
5694 meter_create(const struct ofputil_meter_config
*config
,
5695 ofproto_meter_id provider_meter_id
)
5697 struct meter
*meter
;
5699 meter
= xzalloc(sizeof *meter
);
5700 meter
->provider_meter_id
= provider_meter_id
;
5701 meter
->created
= time_msec();
5702 list_init(&meter
->rules
);
5704 meter_update(meter
, config
);
5710 meter_delete(struct ofproto
*ofproto
, uint32_t first
, uint32_t last
)
5711 OVS_REQUIRES(ofproto_mutex
)
5714 for (mid
= first
; mid
<= last
; ++mid
) {
5715 struct meter
*meter
= ofproto
->meters
[mid
];
5717 ofproto
->meters
[mid
] = NULL
;
5718 ofproto
->ofproto_class
->meter_del(ofproto
,
5719 meter
->provider_meter_id
);
5727 handle_add_meter(struct ofproto
*ofproto
, struct ofputil_meter_mod
*mm
)
5729 ofproto_meter_id provider_meter_id
= { UINT32_MAX
};
5730 struct meter
**meterp
= &ofproto
->meters
[mm
->meter
.meter_id
];
5734 return OFPERR_OFPMMFC_METER_EXISTS
;
5737 error
= ofproto
->ofproto_class
->meter_set(ofproto
, &provider_meter_id
,
5740 ovs_assert(provider_meter_id
.uint32
!= UINT32_MAX
);
5741 *meterp
= meter_create(&mm
->meter
, provider_meter_id
);
5747 handle_modify_meter(struct ofproto
*ofproto
, struct ofputil_meter_mod
*mm
)
5749 struct meter
*meter
= ofproto
->meters
[mm
->meter
.meter_id
];
5751 uint32_t provider_meter_id
;
5754 return OFPERR_OFPMMFC_UNKNOWN_METER
;
5757 provider_meter_id
= meter
->provider_meter_id
.uint32
;
5758 error
= ofproto
->ofproto_class
->meter_set(ofproto
,
5759 &meter
->provider_meter_id
,
5761 ovs_assert(meter
->provider_meter_id
.uint32
== provider_meter_id
);
5763 meter_update(meter
, &mm
->meter
);
5769 handle_delete_meter(struct ofconn
*ofconn
, struct ofputil_meter_mod
*mm
)
5770 OVS_EXCLUDED(ofproto_mutex
)
5772 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
5773 uint32_t meter_id
= mm
->meter
.meter_id
;
5774 struct rule_collection rules
;
5775 enum ofperr error
= 0;
5776 uint32_t first
, last
;
5778 if (meter_id
== OFPM13_ALL
) {
5780 last
= ofproto
->meter_features
.max_meters
;
5782 if (!meter_id
|| meter_id
> ofproto
->meter_features
.max_meters
) {
5785 first
= last
= meter_id
;
5788 /* First delete the rules that use this meter. If any of those rules are
5789 * currently being modified, postpone the whole operation until later. */
5790 rule_collection_init(&rules
);
5791 ovs_mutex_lock(&ofproto_mutex
);
5792 for (meter_id
= first
; meter_id
<= last
; ++meter_id
) {
5793 struct meter
*meter
= ofproto
->meters
[meter_id
];
5794 if (meter
&& !list_is_empty(&meter
->rules
)) {
5797 LIST_FOR_EACH (rule
, meter_list_node
, &meter
->rules
) {
5798 rule_collection_add(&rules
, rule
);
5802 delete_flows__(&rules
, OFPRR_METER_DELETE
, NULL
);
5804 /* Delete the meters. */
5805 meter_delete(ofproto
, first
, last
);
5807 ovs_mutex_unlock(&ofproto_mutex
);
5813 handle_meter_mod(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
5815 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
5816 struct ofputil_meter_mod mm
;
5817 uint64_t bands_stub
[256 / 8];
5818 struct ofpbuf bands
;
5822 error
= reject_slave_controller(ofconn
);
5827 ofpbuf_use_stub(&bands
, bands_stub
, sizeof bands_stub
);
5829 error
= ofputil_decode_meter_mod(oh
, &mm
, &bands
);
5831 goto exit_free_bands
;
5834 meter_id
= mm
.meter
.meter_id
;
5836 if (mm
.command
!= OFPMC13_DELETE
) {
5837 /* Fails also when meters are not implemented by the provider. */
5838 if (meter_id
== 0 || meter_id
> OFPM13_MAX
) {
5839 error
= OFPERR_OFPMMFC_INVALID_METER
;
5840 goto exit_free_bands
;
5841 } else if (meter_id
> ofproto
->meter_features
.max_meters
) {
5842 error
= OFPERR_OFPMMFC_OUT_OF_METERS
;
5843 goto exit_free_bands
;
5845 if (mm
.meter
.n_bands
> ofproto
->meter_features
.max_bands
) {
5846 error
= OFPERR_OFPMMFC_OUT_OF_BANDS
;
5847 goto exit_free_bands
;
5851 switch (mm
.command
) {
5853 error
= handle_add_meter(ofproto
, &mm
);
5856 case OFPMC13_MODIFY
:
5857 error
= handle_modify_meter(ofproto
, &mm
);
5860 case OFPMC13_DELETE
:
5861 error
= handle_delete_meter(ofconn
, &mm
);
5865 error
= OFPERR_OFPMMFC_BAD_COMMAND
;
5870 ofpbuf_uninit(&bands
);
5875 handle_meter_features_request(struct ofconn
*ofconn
,
5876 const struct ofp_header
*request
)
5878 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
5879 struct ofputil_meter_features features
;
5882 if (ofproto
->ofproto_class
->meter_get_features
) {
5883 ofproto
->ofproto_class
->meter_get_features(ofproto
, &features
);
5885 memset(&features
, 0, sizeof features
);
5887 b
= ofputil_encode_meter_features_reply(&features
, request
);
5889 ofconn_send_reply(ofconn
, b
);
5894 handle_meter_request(struct ofconn
*ofconn
, const struct ofp_header
*request
,
5897 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
5898 struct ovs_list replies
;
5899 uint64_t bands_stub
[256 / 8];
5900 struct ofpbuf bands
;
5901 uint32_t meter_id
, first
, last
;
5903 ofputil_decode_meter_request(request
, &meter_id
);
5905 if (meter_id
== OFPM13_ALL
) {
5907 last
= ofproto
->meter_features
.max_meters
;
5909 if (!meter_id
|| meter_id
> ofproto
->meter_features
.max_meters
||
5910 !ofproto
->meters
[meter_id
]) {
5911 return OFPERR_OFPMMFC_UNKNOWN_METER
;
5913 first
= last
= meter_id
;
5916 ofpbuf_use_stub(&bands
, bands_stub
, sizeof bands_stub
);
5917 ofpmp_init(&replies
, request
);
5919 for (meter_id
= first
; meter_id
<= last
; ++meter_id
) {
5920 struct meter
*meter
= ofproto
->meters
[meter_id
];
5922 continue; /* Skip non-existing meters. */
5924 if (type
== OFPTYPE_METER_STATS_REQUEST
) {
5925 struct ofputil_meter_stats stats
;
5927 stats
.meter_id
= meter_id
;
5929 /* Provider sets the packet and byte counts, we do the rest. */
5930 stats
.flow_count
= list_size(&meter
->rules
);
5931 calc_duration(meter
->created
, time_msec(),
5932 &stats
.duration_sec
, &stats
.duration_nsec
);
5933 stats
.n_bands
= meter
->n_bands
;
5934 ofpbuf_clear(&bands
);
5936 = ofpbuf_put_uninit(&bands
,
5937 meter
->n_bands
* sizeof *stats
.bands
);
5939 if (!ofproto
->ofproto_class
->meter_get(ofproto
,
5940 meter
->provider_meter_id
,
5942 ofputil_append_meter_stats(&replies
, &stats
);
5944 } else { /* type == OFPTYPE_METER_CONFIG_REQUEST */
5945 struct ofputil_meter_config config
;
5947 config
.meter_id
= meter_id
;
5948 config
.flags
= meter
->flags
;
5949 config
.n_bands
= meter
->n_bands
;
5950 config
.bands
= meter
->bands
;
5951 ofputil_append_meter_config(&replies
, &config
);
5955 ofconn_send_replies(ofconn
, &replies
);
5956 ofpbuf_uninit(&bands
);
5961 ofproto_group_lookup__(const struct ofproto
*ofproto
, uint32_t group_id
,
5962 struct ofgroup
**group
)
5963 OVS_REQ_RDLOCK(ofproto
->groups_rwlock
)
5965 HMAP_FOR_EACH_IN_BUCKET (*group
, hmap_node
,
5966 hash_int(group_id
, 0), &ofproto
->groups
) {
5967 if ((*group
)->group_id
== group_id
) {
5975 /* If the group exists, this function increments the groups's reference count.
5977 * Make sure to call ofproto_group_unref() after no longer needing to maintain
5978 * a reference to the group. */
5980 ofproto_group_lookup(const struct ofproto
*ofproto
, uint32_t group_id
,
5981 struct ofgroup
**group
)
5985 ovs_rwlock_rdlock(&ofproto
->groups_rwlock
);
5986 found
= ofproto_group_lookup__(ofproto
, group_id
, group
);
5988 ofproto_group_ref(*group
);
5990 ovs_rwlock_unlock(&ofproto
->groups_rwlock
);
5995 ofproto_group_exists__(const struct ofproto
*ofproto
, uint32_t group_id
)
5996 OVS_REQ_RDLOCK(ofproto
->groups_rwlock
)
5998 struct ofgroup
*grp
;
6000 HMAP_FOR_EACH_IN_BUCKET (grp
, hmap_node
,
6001 hash_int(group_id
, 0), &ofproto
->groups
) {
6002 if (grp
->group_id
== group_id
) {
6010 ofproto_group_exists(const struct ofproto
*ofproto
, uint32_t group_id
)
6011 OVS_EXCLUDED(ofproto
->groups_rwlock
)
6015 ovs_rwlock_rdlock(&ofproto
->groups_rwlock
);
6016 exists
= ofproto_group_exists__(ofproto
, group_id
);
6017 ovs_rwlock_unlock(&ofproto
->groups_rwlock
);
6023 group_get_ref_count(struct ofgroup
*group
)
6024 OVS_EXCLUDED(ofproto_mutex
)
6026 struct ofproto
*ofproto
= CONST_CAST(struct ofproto
*, group
->ofproto
);
6027 struct rule_criteria criteria
;
6028 struct rule_collection rules
;
6033 match_init_catchall(&match
);
6034 rule_criteria_init(&criteria
, 0xff, &match
, 0, CLS_MAX_VERSION
, htonll(0),
6035 htonll(0), OFPP_ANY
, group
->group_id
);
6036 ovs_mutex_lock(&ofproto_mutex
);
6037 error
= collect_rules_loose(ofproto
, &criteria
, &rules
);
6038 ovs_mutex_unlock(&ofproto_mutex
);
6039 rule_criteria_destroy(&criteria
);
6041 count
= !error
&& rules
.n
< UINT32_MAX
? rules
.n
: UINT32_MAX
;
6043 rule_collection_destroy(&rules
);
6048 append_group_stats(struct ofgroup
*group
, struct ovs_list
*replies
)
6050 struct ofputil_group_stats ogs
;
6051 const struct ofproto
*ofproto
= group
->ofproto
;
6052 long long int now
= time_msec();
6055 ogs
.bucket_stats
= xmalloc(group
->n_buckets
* sizeof *ogs
.bucket_stats
);
6057 /* Provider sets the packet and byte counts, we do the rest. */
6058 ogs
.ref_count
= group_get_ref_count(group
);
6059 ogs
.n_buckets
= group
->n_buckets
;
6061 error
= (ofproto
->ofproto_class
->group_get_stats
6062 ? ofproto
->ofproto_class
->group_get_stats(group
, &ogs
)
6065 ogs
.packet_count
= UINT64_MAX
;
6066 ogs
.byte_count
= UINT64_MAX
;
6067 memset(ogs
.bucket_stats
, 0xff,
6068 ogs
.n_buckets
* sizeof *ogs
.bucket_stats
);
6071 ogs
.group_id
= group
->group_id
;
6072 calc_duration(group
->created
, now
, &ogs
.duration_sec
, &ogs
.duration_nsec
);
6074 ofputil_append_group_stats(replies
, &ogs
);
6076 free(ogs
.bucket_stats
);
6080 handle_group_request(struct ofconn
*ofconn
,
6081 const struct ofp_header
*request
, uint32_t group_id
,
6082 void (*cb
)(struct ofgroup
*, struct ovs_list
*replies
))
6084 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
6085 struct ofgroup
*group
;
6086 struct ovs_list replies
;
6088 ofpmp_init(&replies
, request
);
6089 if (group_id
== OFPG_ALL
) {
6090 ovs_rwlock_rdlock(&ofproto
->groups_rwlock
);
6091 HMAP_FOR_EACH (group
, hmap_node
, &ofproto
->groups
) {
6092 cb(group
, &replies
);
6094 ovs_rwlock_unlock(&ofproto
->groups_rwlock
);
6096 if (ofproto_group_lookup(ofproto
, group_id
, &group
)) {
6097 cb(group
, &replies
);
6098 ofproto_group_unref(group
);
6101 ofconn_send_replies(ofconn
, &replies
);
6105 handle_group_stats_request(struct ofconn
*ofconn
,
6106 const struct ofp_header
*request
)
6111 error
= ofputil_decode_group_stats_request(request
, &group_id
);
6116 handle_group_request(ofconn
, request
, group_id
, append_group_stats
);
6121 append_group_desc(struct ofgroup
*group
, struct ovs_list
*replies
)
6123 struct ofputil_group_desc gds
;
6125 gds
.group_id
= group
->group_id
;
6126 gds
.type
= group
->type
;
6127 gds
.props
= group
->props
;
6129 ofputil_append_group_desc_reply(&gds
, &group
->buckets
, replies
);
6133 handle_group_desc_stats_request(struct ofconn
*ofconn
,
6134 const struct ofp_header
*request
)
6136 handle_group_request(ofconn
, request
,
6137 ofputil_decode_group_desc_request(request
),
6143 handle_group_features_stats_request(struct ofconn
*ofconn
,
6144 const struct ofp_header
*request
)
6146 struct ofproto
*p
= ofconn_get_ofproto(ofconn
);
6149 msg
= ofputil_encode_group_features_reply(&p
->ogf
, request
);
6151 ofconn_send_reply(ofconn
, msg
);
6158 handle_queue_get_config_request(struct ofconn
*ofconn
,
6159 const struct ofp_header
*oh
)
6161 struct ofproto
*p
= ofconn_get_ofproto(ofconn
);
6162 struct netdev_queue_dump queue_dump
;
6163 struct ofport
*ofport
;
6164 unsigned int queue_id
;
6165 struct ofpbuf
*reply
;
6166 struct smap details
;
6170 error
= ofputil_decode_queue_get_config_request(oh
, &request
);
6175 ofport
= ofproto_get_port(p
, request
);
6177 return OFPERR_OFPQOFC_BAD_PORT
;
6180 reply
= ofputil_encode_queue_get_config_reply(oh
);
6182 smap_init(&details
);
6183 NETDEV_QUEUE_FOR_EACH (&queue_id
, &details
, &queue_dump
, ofport
->netdev
) {
6184 struct ofputil_queue_config queue
;
6186 /* None of the existing queues have compatible properties, so we
6187 * hard-code omitting min_rate and max_rate. */
6188 queue
.queue_id
= queue_id
;
6189 queue
.min_rate
= UINT16_MAX
;
6190 queue
.max_rate
= UINT16_MAX
;
6191 ofputil_append_queue_get_config_reply(reply
, &queue
);
6193 smap_destroy(&details
);
6195 ofconn_send_reply(ofconn
, reply
);
6201 init_group(struct ofproto
*ofproto
, struct ofputil_group_mod
*gm
,
6202 struct ofgroup
**ofgroup
)
6205 const long long int now
= time_msec();
6207 if (gm
->group_id
> OFPG_MAX
) {
6208 return OFPERR_OFPGMFC_INVALID_GROUP
;
6210 if (gm
->type
> OFPGT11_FF
) {
6211 return OFPERR_OFPGMFC_BAD_TYPE
;
6214 *ofgroup
= ofproto
->ofproto_class
->group_alloc();
6216 VLOG_WARN_RL(&rl
, "%s: failed to allocate group", ofproto
->name
);
6217 return OFPERR_OFPGMFC_OUT_OF_GROUPS
;
6220 (*ofgroup
)->ofproto
= ofproto
;
6221 *CONST_CAST(uint32_t *, &((*ofgroup
)->group_id
)) = gm
->group_id
;
6222 *CONST_CAST(enum ofp11_group_type
*, &(*ofgroup
)->type
) = gm
->type
;
6223 *CONST_CAST(long long int *, &((*ofgroup
)->created
)) = now
;
6224 *CONST_CAST(long long int *, &((*ofgroup
)->modified
)) = now
;
6225 ovs_refcount_init(&(*ofgroup
)->ref_count
);
6227 list_move(&(*ofgroup
)->buckets
, &gm
->buckets
);
6228 *CONST_CAST(uint32_t *, &(*ofgroup
)->n_buckets
) =
6229 list_size(&(*ofgroup
)->buckets
);
6231 memcpy(CONST_CAST(struct ofputil_group_props
*, &(*ofgroup
)->props
),
6232 &gm
->props
, sizeof (struct ofputil_group_props
));
6234 /* Construct called BEFORE any locks are held. */
6235 error
= ofproto
->ofproto_class
->group_construct(*ofgroup
);
6237 ofputil_bucket_list_destroy(&(*ofgroup
)->buckets
);
6238 ofproto
->ofproto_class
->group_dealloc(*ofgroup
);
6243 /* Implements the OFPGC11_ADD operation specified by 'gm', adding a group to
6244 * 'ofproto''s group table. Returns 0 on success or an OpenFlow error code on
6247 add_group(struct ofproto
*ofproto
, struct ofputil_group_mod
*gm
)
6249 struct ofgroup
*ofgroup
;
6252 /* Allocate new group and initialize it. */
6253 error
= init_group(ofproto
, gm
, &ofgroup
);
6258 /* We wrlock as late as possible to minimize the time we jam any other
6259 * threads: No visible state changes before acquiring the lock. */
6260 ovs_rwlock_wrlock(&ofproto
->groups_rwlock
);
6262 if (ofproto
->n_groups
[gm
->type
] >= ofproto
->ogf
.max_groups
[gm
->type
]) {
6263 error
= OFPERR_OFPGMFC_OUT_OF_GROUPS
;
6267 if (ofproto_group_exists__(ofproto
, gm
->group_id
)) {
6268 error
= OFPERR_OFPGMFC_GROUP_EXISTS
;
6273 /* Insert new group. */
6274 hmap_insert(&ofproto
->groups
, &ofgroup
->hmap_node
,
6275 hash_int(ofgroup
->group_id
, 0));
6276 ofproto
->n_groups
[ofgroup
->type
]++;
6278 ovs_rwlock_unlock(&ofproto
->groups_rwlock
);
6283 ovs_rwlock_unlock(&ofproto
->groups_rwlock
);
6284 ofproto
->ofproto_class
->group_destruct(ofgroup
);
6285 ofputil_bucket_list_destroy(&ofgroup
->buckets
);
6286 ofproto
->ofproto_class
->group_dealloc(ofgroup
);
6291 /* Adds all of the buckets from 'ofgroup' to 'new_ofgroup'. The buckets
6292 * already in 'new_ofgroup' will be placed just after the (copy of the) bucket
6293 * in 'ofgroup' with bucket ID 'command_bucket_id'. Special
6294 * 'command_bucket_id' values OFPG15_BUCKET_FIRST and OFPG15_BUCKET_LAST are
6297 copy_buckets_for_insert_bucket(const struct ofgroup
*ofgroup
,
6298 struct ofgroup
*new_ofgroup
,
6299 uint32_t command_bucket_id
)
6301 struct ofputil_bucket
*last
= NULL
;
6303 if (command_bucket_id
<= OFPG15_BUCKET_MAX
) {
6304 /* Check here to ensure that a bucket corresponding to
6305 * command_bucket_id exists in the old bucket list.
6307 * The subsequent search of below of new_ofgroup covers
6308 * both buckets in the old bucket list and buckets added
6309 * by the insert buckets group mod message this function processes. */
6310 if (!ofputil_bucket_find(&ofgroup
->buckets
, command_bucket_id
)) {
6311 return OFPERR_OFPGMFC_UNKNOWN_BUCKET
;
6314 if (!list_is_empty(&new_ofgroup
->buckets
)) {
6315 last
= ofputil_bucket_list_back(&new_ofgroup
->buckets
);
6319 ofputil_bucket_clone_list(&new_ofgroup
->buckets
, &ofgroup
->buckets
, NULL
);
6321 if (ofputil_bucket_check_duplicate_id(&ofgroup
->buckets
)) {
6322 VLOG_WARN_RL(&rl
, "Duplicate bucket id");
6323 return OFPERR_OFPGMFC_BUCKET_EXISTS
;
6326 /* Rearrange list according to command_bucket_id */
6327 if (command_bucket_id
== OFPG15_BUCKET_LAST
) {
6328 struct ofputil_bucket
*new_first
;
6329 const struct ofputil_bucket
*first
;
6331 first
= ofputil_bucket_list_front(&ofgroup
->buckets
);
6332 new_first
= ofputil_bucket_find(&new_ofgroup
->buckets
,
6335 list_splice(new_ofgroup
->buckets
.next
, &new_first
->list_node
,
6336 &new_ofgroup
->buckets
);
6337 } else if (command_bucket_id
<= OFPG15_BUCKET_MAX
&& last
) {
6338 struct ofputil_bucket
*after
;
6340 /* Presence of bucket is checked above so after should never be NULL */
6341 after
= ofputil_bucket_find(&new_ofgroup
->buckets
, command_bucket_id
);
6343 list_splice(after
->list_node
.next
, new_ofgroup
->buckets
.next
,
6344 last
->list_node
.next
);
6350 /* Appends all of the a copy of all the buckets from 'ofgroup' to 'new_ofgroup'
6351 * with the exception of the bucket whose bucket id is 'command_bucket_id'.
6352 * Special 'command_bucket_id' values OFPG15_BUCKET_FIRST, OFPG15_BUCKET_LAST
6353 * and OFPG15_BUCKET_ALL are also honored. */
6355 copy_buckets_for_remove_bucket(const struct ofgroup
*ofgroup
,
6356 struct ofgroup
*new_ofgroup
,
6357 uint32_t command_bucket_id
)
6359 const struct ofputil_bucket
*skip
= NULL
;
6361 if (command_bucket_id
== OFPG15_BUCKET_ALL
) {
6365 if (command_bucket_id
== OFPG15_BUCKET_FIRST
) {
6366 if (!list_is_empty(&ofgroup
->buckets
)) {
6367 skip
= ofputil_bucket_list_front(&ofgroup
->buckets
);
6369 } else if (command_bucket_id
== OFPG15_BUCKET_LAST
) {
6370 if (!list_is_empty(&ofgroup
->buckets
)) {
6371 skip
= ofputil_bucket_list_back(&ofgroup
->buckets
);
6374 skip
= ofputil_bucket_find(&ofgroup
->buckets
, command_bucket_id
);
6376 return OFPERR_OFPGMFC_UNKNOWN_BUCKET
;
6380 ofputil_bucket_clone_list(&new_ofgroup
->buckets
, &ofgroup
->buckets
, skip
);
6385 /* Implements OFPGC11_MODIFY, OFPGC15_INSERT_BUCKET and
6386 * OFPGC15_REMOVE_BUCKET. Returns 0 on success or an OpenFlow error code
6389 * Note that the group is re-created and then replaces the old group in
6390 * ofproto's ofgroup hash map. Thus, the group is never altered while users of
6391 * the xlate module hold a pointer to the group. */
6393 modify_group(struct ofproto
*ofproto
, struct ofputil_group_mod
*gm
)
6395 struct ofgroup
*ofgroup
, *new_ofgroup
, *retiring
;
6398 error
= init_group(ofproto
, gm
, &new_ofgroup
);
6403 retiring
= new_ofgroup
;
6405 ovs_rwlock_wrlock(&ofproto
->groups_rwlock
);
6406 if (!ofproto_group_lookup__(ofproto
, gm
->group_id
, &ofgroup
)) {
6407 error
= OFPERR_OFPGMFC_UNKNOWN_GROUP
;
6411 /* Ofproto's group write lock is held now. */
6412 if (ofgroup
->type
!= gm
->type
6413 && ofproto
->n_groups
[gm
->type
] >= ofproto
->ogf
.max_groups
[gm
->type
]) {
6414 error
= OFPERR_OFPGMFC_OUT_OF_GROUPS
;
6418 /* Manipulate bucket list for bucket commands */
6419 if (gm
->command
== OFPGC15_INSERT_BUCKET
) {
6420 error
= copy_buckets_for_insert_bucket(ofgroup
, new_ofgroup
,
6421 gm
->command_bucket_id
);
6422 } else if (gm
->command
== OFPGC15_REMOVE_BUCKET
) {
6423 error
= copy_buckets_for_remove_bucket(ofgroup
, new_ofgroup
,
6424 gm
->command_bucket_id
);
6430 /* The group creation time does not change during modification. */
6431 *CONST_CAST(long long int *, &(new_ofgroup
->created
)) = ofgroup
->created
;
6432 *CONST_CAST(long long int *, &(new_ofgroup
->modified
)) = time_msec();
6434 error
= ofproto
->ofproto_class
->group_modify(new_ofgroup
);
6440 /* Replace ofgroup in ofproto's groups hash map with new_ofgroup. */
6441 hmap_remove(&ofproto
->groups
, &ofgroup
->hmap_node
);
6442 hmap_insert(&ofproto
->groups
, &new_ofgroup
->hmap_node
,
6443 hash_int(new_ofgroup
->group_id
, 0));
6444 if (ofgroup
->type
!= new_ofgroup
->type
) {
6445 ofproto
->n_groups
[ofgroup
->type
]--;
6446 ofproto
->n_groups
[new_ofgroup
->type
]++;
6450 ofproto_group_unref(retiring
);
6451 ovs_rwlock_unlock(&ofproto
->groups_rwlock
);
6456 delete_group__(struct ofproto
*ofproto
, struct ofgroup
*ofgroup
)
6457 OVS_RELEASES(ofproto
->groups_rwlock
)
6460 struct ofputil_flow_mod fm
;
6462 /* Delete all flow entries containing this group in a group action */
6463 match_init_catchall(&match
);
6464 flow_mod_init(&fm
, &match
, 0, NULL
, 0, OFPFC_DELETE
);
6465 fm
.delete_reason
= OFPRR_GROUP_DELETE
;
6466 fm
.out_group
= ofgroup
->group_id
;
6467 handle_flow_mod__(ofproto
, &fm
, NULL
);
6469 hmap_remove(&ofproto
->groups
, &ofgroup
->hmap_node
);
6470 /* No-one can find this group any more. */
6471 ofproto
->n_groups
[ofgroup
->type
]--;
6472 ovs_rwlock_unlock(&ofproto
->groups_rwlock
);
6473 ofproto_group_unref(ofgroup
);
6476 /* Implements OFPGC11_DELETE. */
6478 delete_group(struct ofproto
*ofproto
, uint32_t group_id
)
6480 struct ofgroup
*ofgroup
;
6482 ovs_rwlock_wrlock(&ofproto
->groups_rwlock
);
6483 if (group_id
== OFPG_ALL
) {
6485 struct hmap_node
*node
= hmap_first(&ofproto
->groups
);
6489 ofgroup
= CONTAINER_OF(node
, struct ofgroup
, hmap_node
);
6490 delete_group__(ofproto
, ofgroup
);
6491 /* Lock for each node separately, so that we will not jam the
6492 * other threads for too long time. */
6493 ovs_rwlock_wrlock(&ofproto
->groups_rwlock
);
6496 HMAP_FOR_EACH_IN_BUCKET (ofgroup
, hmap_node
,
6497 hash_int(group_id
, 0), &ofproto
->groups
) {
6498 if (ofgroup
->group_id
== group_id
) {
6499 delete_group__(ofproto
, ofgroup
);
6504 ovs_rwlock_unlock(&ofproto
->groups_rwlock
);
6507 /* Delete all groups from 'ofproto'.
6509 * This is intended for use within an ofproto provider's 'destruct'
6512 ofproto_group_delete_all(struct ofproto
*ofproto
)
6514 delete_group(ofproto
, OFPG_ALL
);
6518 handle_group_mod(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
6520 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
6521 struct ofputil_group_mod gm
;
6524 error
= reject_slave_controller(ofconn
);
6529 error
= ofputil_decode_group_mod(oh
, &gm
);
6534 switch (gm
.command
) {
6536 return add_group(ofproto
, &gm
);
6538 case OFPGC11_MODIFY
:
6539 return modify_group(ofproto
, &gm
);
6541 case OFPGC11_DELETE
:
6542 delete_group(ofproto
, gm
.group_id
);
6545 case OFPGC15_INSERT_BUCKET
:
6546 return modify_group(ofproto
, &gm
);
6548 case OFPGC15_REMOVE_BUCKET
:
6549 return modify_group(ofproto
, &gm
);
6552 if (gm
.command
> OFPGC11_DELETE
) {
6553 VLOG_WARN_RL(&rl
, "%s: Invalid group_mod command type %d",
6554 ofproto
->name
, gm
.command
);
6556 return OFPERR_OFPGMFC_BAD_COMMAND
;
6560 enum ofputil_table_miss
6561 ofproto_table_get_miss_config(const struct ofproto
*ofproto
, uint8_t table_id
)
6563 enum ofputil_table_miss value
;
6565 atomic_read_relaxed(&ofproto
->tables
[table_id
].miss_config
, &value
);
6570 table_mod(struct ofproto
*ofproto
, const struct ofputil_table_mod
*tm
)
6572 if (!check_table_id(ofproto
, tm
->table_id
)) {
6573 return OFPERR_OFPTMFC_BAD_TABLE
;
6574 } else if (tm
->miss_config
!= OFPUTIL_TABLE_MISS_DEFAULT
) {
6575 if (tm
->table_id
== OFPTT_ALL
) {
6577 for (i
= 0; i
< ofproto
->n_tables
; i
++) {
6578 atomic_store_relaxed(&ofproto
->tables
[i
].miss_config
,
6582 atomic_store_relaxed(&ofproto
->tables
[tm
->table_id
].miss_config
,
6590 handle_table_mod(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
6592 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
6593 struct ofputil_table_mod tm
;
6596 error
= reject_slave_controller(ofconn
);
6601 error
= ofputil_decode_table_mod(oh
, &tm
);
6606 return table_mod(ofproto
, &tm
);
6610 do_bundle_flow_mod_start(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
6611 struct ofp_bundle_entry
*be
)
6612 OVS_REQUIRES(ofproto_mutex
)
6614 switch (fm
->command
) {
6616 return add_flow_start(ofproto
, fm
, &be
->old_rules
.stub
[0],
6617 &be
->new_rules
.stub
[0]);
6619 return modify_flows_start_loose(ofproto
, fm
, &be
->old_rules
,
6621 case OFPFC_MODIFY_STRICT
:
6622 return modify_flow_start_strict(ofproto
, fm
, &be
->old_rules
,
6625 return delete_flows_start_loose(ofproto
, fm
, &be
->old_rules
);
6627 case OFPFC_DELETE_STRICT
:
6628 return delete_flow_start_strict(ofproto
, fm
, &be
->old_rules
);
6631 return OFPERR_OFPFMFC_BAD_COMMAND
;
6635 do_bundle_flow_mod_revert(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
6636 struct ofp_bundle_entry
*be
)
6637 OVS_REQUIRES(ofproto_mutex
)
6639 switch (fm
->command
) {
6641 add_flow_revert(ofproto
, fm
, be
->old_rules
.stub
[0],
6642 be
->new_rules
.stub
[0]);
6646 case OFPFC_MODIFY_STRICT
:
6647 modify_flows_revert(ofproto
, fm
, &be
->old_rules
, &be
->new_rules
);
6651 case OFPFC_DELETE_STRICT
:
6652 delete_flows_revert(ofproto
, &be
->old_rules
);
6661 do_bundle_flow_mod_finish(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
6662 const struct flow_mod_requester
*req
,
6663 struct ofp_bundle_entry
*be
)
6664 OVS_REQUIRES(ofproto_mutex
)
6666 switch (fm
->command
) {
6668 add_flow_finish(ofproto
, fm
, req
, be
->old_rules
.stub
[0],
6669 be
->new_rules
.stub
[0]);
6673 case OFPFC_MODIFY_STRICT
:
6674 modify_flows_finish(ofproto
, fm
, req
, &be
->old_rules
, &be
->new_rules
);
6678 case OFPFC_DELETE_STRICT
:
6679 delete_flows_finish(ofproto
, fm
, req
, &be
->old_rules
);
6687 /* Commit phases (all while locking ofproto_mutex):
6689 * 1. Begin: Gather resources and make changes visible in the next version.
6690 * - Mark affected rules for removal in the next version.
6691 * - Create new replacement rules, make visible in the next
6693 * - Do not send any events or notifications.
6695 * 2. Revert: Fail if any errors are found. After this point no errors are
6696 * possible. No visible changes were made, so rollback is minimal (remove
6697 * added invisible rules, restore visibility of rules marked for removal).
6699 * 3. Finish: Make the changes visible for lookups. Insert replacement rules to
6700 * the ofproto provider. Remove replaced and deleted rules from ofproto data
6701 * structures, and Schedule postponed removal of deleted rules from the
6702 * classifier. Send notifications, buffered packets, etc.
6705 do_bundle_commit(struct ofconn
*ofconn
, uint32_t id
, uint16_t flags
)
6707 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
6708 cls_version_t visible_version
= ofproto
->tables_version
;
6709 struct ofp_bundle
*bundle
;
6710 struct ofp_bundle_entry
*be
;
6713 bundle
= ofconn_get_bundle(ofconn
, id
);
6716 return OFPERR_OFPBFC_BAD_ID
;
6718 if (bundle
->flags
!= flags
) {
6719 error
= OFPERR_OFPBFC_BAD_FLAGS
;
6721 bool prev_is_port_mod
= false;
6724 ovs_mutex_lock(&ofproto_mutex
);
6727 LIST_FOR_EACH (be
, node
, &bundle
->msg_list
) {
6728 if (be
->type
== OFPTYPE_PORT_MOD
) {
6729 /* Our port mods are not atomic. */
6730 if (flags
& OFPBF_ATOMIC
) {
6731 error
= OFPERR_OFPBFC_MSG_FAILED
;
6733 prev_is_port_mod
= true;
6734 error
= port_mod_start(ofconn
, &be
->pm
, &be
->port
);
6736 } else if (be
->type
== OFPTYPE_FLOW_MOD
) {
6737 /* Flow mods between port mods are applied as a single
6738 * version, but the versions are published only after
6739 * we know the commit is successful. */
6740 if (prev_is_port_mod
) {
6741 ++ofproto
->tables_version
;
6743 prev_is_port_mod
= false;
6744 error
= do_bundle_flow_mod_start(ofproto
, &be
->fm
, be
);
6751 /* Store the version in which the changes should take
6753 be
->version
= ofproto
->tables_version
+ 1;
6758 /* Send error referring to the original message. */
6760 ofconn_send_error(ofconn
, be
->ofp_msg
, error
);
6761 error
= OFPERR_OFPBFC_MSG_FAILED
;
6764 /* 2. Revert. Undo all the changes made above. */
6765 LIST_FOR_EACH_REVERSE_CONTINUE(be
, node
, &bundle
->msg_list
) {
6766 if (be
->type
== OFPTYPE_FLOW_MOD
) {
6767 do_bundle_flow_mod_revert(ofproto
, &be
->fm
, be
);
6769 /* Nothing needs to be reverted for a port mod. */
6773 LIST_FOR_EACH (be
, node
, &bundle
->msg_list
) {
6774 /* Bump the lookup version to the one of the current message.
6775 * This makes all the changes in the bundle at this version
6776 * visible to lookups at once. */
6777 if (visible_version
< be
->version
) {
6778 visible_version
= be
->version
;
6779 ofproto
->ofproto_class
->set_tables_version(
6780 ofproto
, visible_version
);
6782 if (be
->type
== OFPTYPE_FLOW_MOD
) {
6783 struct flow_mod_requester req
= { ofconn
, be
->ofp_msg
};
6785 do_bundle_flow_mod_finish(ofproto
, &be
->fm
, &req
, be
);
6786 } else if (be
->type
== OFPTYPE_PORT_MOD
) {
6787 /* Perform the actual port mod. This is not atomic, i.e.,
6788 * the effects will be immediately seen by upcall
6789 * processing regardless of the lookup version. It should
6790 * be noted that port configuration changes can originate
6791 * also from OVSDB changes asynchronously to all upcall
6793 port_mod_finish(ofconn
, &be
->pm
, be
->port
);
6798 /* Reset the tables_version. */
6799 ofproto
->tables_version
= visible_version
;
6801 ofmonitor_flush(ofproto
->connmgr
);
6802 ovs_mutex_unlock(&ofproto_mutex
);
6804 run_rule_executes(ofproto
);
6807 /* The bundle is discarded regardless the outcome. */
6808 ofp_bundle_remove__(ofconn
, bundle
, !error
);
6813 handle_bundle_control(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
6815 struct ofputil_bundle_ctrl_msg bctrl
;
6816 struct ofputil_bundle_ctrl_msg reply
;
6820 error
= reject_slave_controller(ofconn
);
6825 error
= ofputil_decode_bundle_ctrl(oh
, &bctrl
);
6830 reply
.bundle_id
= bctrl
.bundle_id
;
6832 switch (bctrl
.type
) {
6833 case OFPBCT_OPEN_REQUEST
:
6834 error
= ofp_bundle_open(ofconn
, bctrl
.bundle_id
, bctrl
.flags
);
6835 reply
.type
= OFPBCT_OPEN_REPLY
;
6837 case OFPBCT_CLOSE_REQUEST
:
6838 error
= ofp_bundle_close(ofconn
, bctrl
.bundle_id
, bctrl
.flags
);
6839 reply
.type
= OFPBCT_CLOSE_REPLY
;;
6841 case OFPBCT_COMMIT_REQUEST
:
6842 error
= do_bundle_commit(ofconn
, bctrl
.bundle_id
, bctrl
.flags
);
6843 reply
.type
= OFPBCT_COMMIT_REPLY
;
6845 case OFPBCT_DISCARD_REQUEST
:
6846 error
= ofp_bundle_discard(ofconn
, bctrl
.bundle_id
);
6847 reply
.type
= OFPBCT_DISCARD_REPLY
;
6850 case OFPBCT_OPEN_REPLY
:
6851 case OFPBCT_CLOSE_REPLY
:
6852 case OFPBCT_COMMIT_REPLY
:
6853 case OFPBCT_DISCARD_REPLY
:
6854 return OFPERR_OFPBFC_BAD_TYPE
;
6859 buf
= ofputil_encode_bundle_ctrl_reply(oh
, &reply
);
6860 ofconn_send_reply(ofconn
, buf
);
6866 handle_bundle_add(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
6868 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
6870 struct ofputil_bundle_add_msg badd
;
6871 struct ofp_bundle_entry
*bmsg
;
6874 error
= reject_slave_controller(ofconn
);
6879 error
= ofputil_decode_bundle_add(oh
, &badd
, &type
);
6884 bmsg
= ofp_bundle_entry_alloc(type
, badd
.msg
);
6886 if (type
== OFPTYPE_PORT_MOD
) {
6887 error
= ofputil_decode_port_mod(badd
.msg
, &bmsg
->pm
, false);
6888 } else if (type
== OFPTYPE_FLOW_MOD
) {
6889 struct ofpbuf ofpacts
;
6890 uint64_t ofpacts_stub
[1024 / 8];
6892 ofpbuf_use_stub(&ofpacts
, ofpacts_stub
, sizeof ofpacts_stub
);
6893 error
= ofputil_decode_flow_mod(&bmsg
->fm
, badd
.msg
,
6894 ofconn_get_protocol(ofconn
),
6896 u16_to_ofp(ofproto
->max_ports
),
6898 /* Move actions to heap. */
6899 bmsg
->fm
.ofpacts
= ofpbuf_steal_data(&ofpacts
);
6901 if (!error
&& bmsg
->fm
.ofpacts_len
) {
6902 error
= ofproto_check_ofpacts(ofproto
, bmsg
->fm
.ofpacts
,
6903 bmsg
->fm
.ofpacts_len
);
6910 error
= ofp_bundle_add_message(ofconn
, badd
.bundle_id
, badd
.flags
,
6915 ofp_bundle_entry_free(bmsg
);
6922 handle_geneve_table_mod(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
6924 struct ofputil_geneve_table_mod gtm
;
6927 error
= reject_slave_controller(ofconn
);
6932 error
= ofputil_decode_geneve_table_mod(oh
, >m
);
6937 error
= tun_metadata_table_mod(>m
);
6939 ofputil_uninit_geneve_table(>m
.mappings
);
6944 handle_geneve_table_request(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
6946 struct ofputil_geneve_table_reply gtr
;
6949 tun_metadata_table_request(>r
);
6950 b
= ofputil_encode_geneve_table_reply(oh
, >r
);
6951 ofputil_uninit_geneve_table(>r
.mappings
);
6953 ofconn_send_reply(ofconn
, b
);
6958 handle_openflow__(struct ofconn
*ofconn
, const struct ofpbuf
*msg
)
6959 OVS_EXCLUDED(ofproto_mutex
)
6961 const struct ofp_header
*oh
= msg
->data
;
6965 error
= ofptype_decode(&type
, oh
);
6969 if (oh
->version
>= OFP13_VERSION
&& ofpmsg_is_stat_request(oh
)
6970 && ofpmp_more(oh
)) {
6971 /* We have no buffer implementation for multipart requests.
6972 * Report overflow for requests which consists of multiple
6974 return OFPERR_OFPBRC_MULTIPART_BUFFER_OVERFLOW
;
6978 /* OpenFlow requests. */
6979 case OFPTYPE_ECHO_REQUEST
:
6980 return handle_echo_request(ofconn
, oh
);
6982 case OFPTYPE_FEATURES_REQUEST
:
6983 return handle_features_request(ofconn
, oh
);
6985 case OFPTYPE_GET_CONFIG_REQUEST
:
6986 return handle_get_config_request(ofconn
, oh
);
6988 case OFPTYPE_SET_CONFIG
:
6989 return handle_set_config(ofconn
, oh
);
6991 case OFPTYPE_PACKET_OUT
:
6992 return handle_packet_out(ofconn
, oh
);
6994 case OFPTYPE_PORT_MOD
:
6995 return handle_port_mod(ofconn
, oh
);
6997 case OFPTYPE_FLOW_MOD
:
6998 return handle_flow_mod(ofconn
, oh
);
7000 case OFPTYPE_GROUP_MOD
:
7001 return handle_group_mod(ofconn
, oh
);
7003 case OFPTYPE_TABLE_MOD
:
7004 return handle_table_mod(ofconn
, oh
);
7006 case OFPTYPE_METER_MOD
:
7007 return handle_meter_mod(ofconn
, oh
);
7009 case OFPTYPE_BARRIER_REQUEST
:
7010 return handle_barrier_request(ofconn
, oh
);
7012 case OFPTYPE_ROLE_REQUEST
:
7013 return handle_role_request(ofconn
, oh
);
7015 /* OpenFlow replies. */
7016 case OFPTYPE_ECHO_REPLY
:
7019 /* Nicira extension requests. */
7020 case OFPTYPE_FLOW_MOD_TABLE_ID
:
7021 return handle_nxt_flow_mod_table_id(ofconn
, oh
);
7023 case OFPTYPE_SET_FLOW_FORMAT
:
7024 return handle_nxt_set_flow_format(ofconn
, oh
);
7026 case OFPTYPE_SET_PACKET_IN_FORMAT
:
7027 return handle_nxt_set_packet_in_format(ofconn
, oh
);
7029 case OFPTYPE_SET_CONTROLLER_ID
:
7030 return handle_nxt_set_controller_id(ofconn
, oh
);
7032 case OFPTYPE_FLOW_AGE
:
7033 /* Nothing to do. */
7036 case OFPTYPE_FLOW_MONITOR_CANCEL
:
7037 return handle_flow_monitor_cancel(ofconn
, oh
);
7039 case OFPTYPE_SET_ASYNC_CONFIG
:
7040 return handle_nxt_set_async_config(ofconn
, oh
);
7042 case OFPTYPE_GET_ASYNC_REQUEST
:
7043 return handle_nxt_get_async_request(ofconn
, oh
);
7045 /* Statistics requests. */
7046 case OFPTYPE_DESC_STATS_REQUEST
:
7047 return handle_desc_stats_request(ofconn
, oh
);
7049 case OFPTYPE_FLOW_STATS_REQUEST
:
7050 return handle_flow_stats_request(ofconn
, oh
);
7052 case OFPTYPE_AGGREGATE_STATS_REQUEST
:
7053 return handle_aggregate_stats_request(ofconn
, oh
);
7055 case OFPTYPE_TABLE_STATS_REQUEST
:
7056 return handle_table_stats_request(ofconn
, oh
);
7058 case OFPTYPE_TABLE_FEATURES_STATS_REQUEST
:
7059 return handle_table_features_request(ofconn
, oh
);
7061 case OFPTYPE_PORT_STATS_REQUEST
:
7062 return handle_port_stats_request(ofconn
, oh
);
7064 case OFPTYPE_QUEUE_STATS_REQUEST
:
7065 return handle_queue_stats_request(ofconn
, oh
);
7067 case OFPTYPE_PORT_DESC_STATS_REQUEST
:
7068 return handle_port_desc_stats_request(ofconn
, oh
);
7070 case OFPTYPE_FLOW_MONITOR_STATS_REQUEST
:
7071 return handle_flow_monitor_request(ofconn
, oh
);
7073 case OFPTYPE_METER_STATS_REQUEST
:
7074 case OFPTYPE_METER_CONFIG_STATS_REQUEST
:
7075 return handle_meter_request(ofconn
, oh
, type
);
7077 case OFPTYPE_METER_FEATURES_STATS_REQUEST
:
7078 return handle_meter_features_request(ofconn
, oh
);
7080 case OFPTYPE_GROUP_STATS_REQUEST
:
7081 return handle_group_stats_request(ofconn
, oh
);
7083 case OFPTYPE_GROUP_DESC_STATS_REQUEST
:
7084 return handle_group_desc_stats_request(ofconn
, oh
);
7086 case OFPTYPE_GROUP_FEATURES_STATS_REQUEST
:
7087 return handle_group_features_stats_request(ofconn
, oh
);
7089 case OFPTYPE_QUEUE_GET_CONFIG_REQUEST
:
7090 return handle_queue_get_config_request(ofconn
, oh
);
7092 case OFPTYPE_BUNDLE_CONTROL
:
7093 return handle_bundle_control(ofconn
, oh
);
7095 case OFPTYPE_BUNDLE_ADD_MESSAGE
:
7096 return handle_bundle_add(ofconn
, oh
);
7098 case OFPTYPE_NXT_GENEVE_TABLE_MOD
:
7099 return handle_geneve_table_mod(ofconn
, oh
);
7101 case OFPTYPE_NXT_GENEVE_TABLE_REQUEST
:
7102 return handle_geneve_table_request(ofconn
, oh
);
7106 case OFPTYPE_FEATURES_REPLY
:
7107 case OFPTYPE_GET_CONFIG_REPLY
:
7108 case OFPTYPE_PACKET_IN
:
7109 case OFPTYPE_FLOW_REMOVED
:
7110 case OFPTYPE_PORT_STATUS
:
7111 case OFPTYPE_BARRIER_REPLY
:
7112 case OFPTYPE_QUEUE_GET_CONFIG_REPLY
:
7113 case OFPTYPE_DESC_STATS_REPLY
:
7114 case OFPTYPE_FLOW_STATS_REPLY
:
7115 case OFPTYPE_QUEUE_STATS_REPLY
:
7116 case OFPTYPE_PORT_STATS_REPLY
:
7117 case OFPTYPE_TABLE_STATS_REPLY
:
7118 case OFPTYPE_AGGREGATE_STATS_REPLY
:
7119 case OFPTYPE_PORT_DESC_STATS_REPLY
:
7120 case OFPTYPE_ROLE_REPLY
:
7121 case OFPTYPE_FLOW_MONITOR_PAUSED
:
7122 case OFPTYPE_FLOW_MONITOR_RESUMED
:
7123 case OFPTYPE_FLOW_MONITOR_STATS_REPLY
:
7124 case OFPTYPE_GET_ASYNC_REPLY
:
7125 case OFPTYPE_GROUP_STATS_REPLY
:
7126 case OFPTYPE_GROUP_DESC_STATS_REPLY
:
7127 case OFPTYPE_GROUP_FEATURES_STATS_REPLY
:
7128 case OFPTYPE_METER_STATS_REPLY
:
7129 case OFPTYPE_METER_CONFIG_STATS_REPLY
:
7130 case OFPTYPE_METER_FEATURES_STATS_REPLY
:
7131 case OFPTYPE_TABLE_FEATURES_STATS_REPLY
:
7132 case OFPTYPE_ROLE_STATUS
:
7133 case OFPTYPE_NXT_GENEVE_TABLE_REPLY
:
7135 if (ofpmsg_is_stat_request(oh
)) {
7136 return OFPERR_OFPBRC_BAD_STAT
;
7138 return OFPERR_OFPBRC_BAD_TYPE
;
7144 handle_openflow(struct ofconn
*ofconn
, const struct ofpbuf
*ofp_msg
)
7145 OVS_EXCLUDED(ofproto_mutex
)
7147 enum ofperr error
= handle_openflow__(ofconn
, ofp_msg
);
7150 ofconn_send_error(ofconn
, ofp_msg
->data
, error
);
7152 COVERAGE_INC(ofproto_recv_openflow
);
7155 /* Asynchronous operations. */
7158 send_buffered_packet(const struct flow_mod_requester
*req
, uint32_t buffer_id
,
7160 OVS_REQUIRES(ofproto_mutex
)
7162 if (req
&& req
->ofconn
&& buffer_id
!= UINT32_MAX
) {
7163 struct ofproto
*ofproto
= ofconn_get_ofproto(req
->ofconn
);
7164 struct dp_packet
*packet
;
7168 error
= ofconn_pktbuf_retrieve(req
->ofconn
, buffer_id
, &packet
,
7171 struct rule_execute
*re
;
7173 ofproto_rule_ref(rule
);
7175 re
= xmalloc(sizeof *re
);
7177 re
->in_port
= in_port
;
7178 re
->packet
= packet
;
7180 if (!guarded_list_push_back(&ofproto
->rule_executes
,
7181 &re
->list_node
, 1024)) {
7182 ofproto_rule_unref(rule
);
7183 dp_packet_delete(re
->packet
);
7187 ofconn_send_error(req
->ofconn
, req
->request
, error
);
7193 pick_datapath_id(const struct ofproto
*ofproto
)
7195 const struct ofport
*port
;
7197 port
= ofproto_get_port(ofproto
, OFPP_LOCAL
);
7199 uint8_t ea
[ETH_ADDR_LEN
];
7202 error
= netdev_get_etheraddr(port
->netdev
, ea
);
7204 return eth_addr_to_uint64(ea
);
7206 VLOG_WARN("%s: could not get MAC address for %s (%s)",
7207 ofproto
->name
, netdev_get_name(port
->netdev
),
7208 ovs_strerror(error
));
7210 return ofproto
->fallback_dpid
;
7214 pick_fallback_dpid(void)
7216 uint8_t ea
[ETH_ADDR_LEN
];
7217 eth_addr_nicira_random(ea
);
7218 return eth_addr_to_uint64(ea
);
7221 /* Table overflow policy. */
7223 /* Chooses and updates 'rulep' with a rule to evict from 'table'. Sets 'rulep'
7224 * to NULL if the table is not configured to evict rules or if the table
7225 * contains no evictable rules. (Rules with a readlock on their evict rwlock,
7226 * or with no timeouts are not evictable.) */
7228 choose_rule_to_evict(struct oftable
*table
, struct rule
**rulep
)
7229 OVS_REQUIRES(ofproto_mutex
)
7231 struct eviction_group
*evg
;
7234 if (!table
->eviction_fields
) {
7238 /* In the common case, the outer and inner loops here will each be entered
7241 * - The inner loop normally "return"s in its first iteration. If the
7242 * eviction group has any evictable rules, then it always returns in
7245 * - The outer loop only iterates more than once if the largest eviction
7246 * group has no evictable rules.
7248 * - The outer loop can exit only if table's 'max_flows' is all filled up
7249 * by unevictable rules. */
7250 HEAP_FOR_EACH (evg
, size_node
, &table
->eviction_groups_by_size
) {
7253 HEAP_FOR_EACH (rule
, evg_node
, &evg
->rules
) {
7262 /* Eviction groups. */
7264 /* Returns the priority to use for an eviction_group that contains 'n_rules'
7265 * rules. The priority contains low-order random bits to ensure that eviction
7266 * groups with the same number of rules are prioritized randomly. */
7268 eviction_group_priority(size_t n_rules
)
7270 uint16_t size
= MIN(UINT16_MAX
, n_rules
);
7271 return (size
<< 16) | random_uint16();
7274 /* Updates 'evg', an eviction_group within 'table', following a change that
7275 * adds or removes rules in 'evg'. */
7277 eviction_group_resized(struct oftable
*table
, struct eviction_group
*evg
)
7278 OVS_REQUIRES(ofproto_mutex
)
7280 heap_change(&table
->eviction_groups_by_size
, &evg
->size_node
,
7281 eviction_group_priority(heap_count(&evg
->rules
)));
7284 /* Destroys 'evg', an eviction_group within 'table':
7286 * - Removes all the rules, if any, from 'evg'. (It doesn't destroy the
7287 * rules themselves, just removes them from the eviction group.)
7289 * - Removes 'evg' from 'table'.
7293 eviction_group_destroy(struct oftable
*table
, struct eviction_group
*evg
)
7294 OVS_REQUIRES(ofproto_mutex
)
7296 while (!heap_is_empty(&evg
->rules
)) {
7299 rule
= CONTAINER_OF(heap_pop(&evg
->rules
), struct rule
, evg_node
);
7300 rule
->eviction_group
= NULL
;
7302 hmap_remove(&table
->eviction_groups_by_id
, &evg
->id_node
);
7303 heap_remove(&table
->eviction_groups_by_size
, &evg
->size_node
);
7304 heap_destroy(&evg
->rules
);
7308 /* Removes 'rule' from its eviction group, if any. */
7310 eviction_group_remove_rule(struct rule
*rule
)
7311 OVS_REQUIRES(ofproto_mutex
)
7313 if (rule
->eviction_group
) {
7314 struct oftable
*table
= &rule
->ofproto
->tables
[rule
->table_id
];
7315 struct eviction_group
*evg
= rule
->eviction_group
;
7317 rule
->eviction_group
= NULL
;
7318 heap_remove(&evg
->rules
, &rule
->evg_node
);
7319 if (heap_is_empty(&evg
->rules
)) {
7320 eviction_group_destroy(table
, evg
);
7322 eviction_group_resized(table
, evg
);
7327 /* Hashes the 'rule''s values for the eviction_fields of 'rule''s table, and
7328 * returns the hash value. */
7330 eviction_group_hash_rule(struct rule
*rule
)
7331 OVS_REQUIRES(ofproto_mutex
)
7333 struct oftable
*table
= &rule
->ofproto
->tables
[rule
->table_id
];
7334 const struct mf_subfield
*sf
;
7338 hash
= table
->eviction_group_id_basis
;
7339 miniflow_expand(&rule
->cr
.match
.flow
, &flow
);
7340 for (sf
= table
->eviction_fields
;
7341 sf
< &table
->eviction_fields
[table
->n_eviction_fields
];
7344 if (mf_are_prereqs_ok(sf
->field
, &flow
)) {
7345 union mf_value value
;
7347 mf_get_value(sf
->field
, &flow
, &value
);
7349 bitwise_zero(&value
, sf
->field
->n_bytes
, 0, sf
->ofs
);
7351 if (sf
->ofs
+ sf
->n_bits
< sf
->field
->n_bytes
* 8) {
7352 unsigned int start
= sf
->ofs
+ sf
->n_bits
;
7353 bitwise_zero(&value
, sf
->field
->n_bytes
, start
,
7354 sf
->field
->n_bytes
* 8 - start
);
7356 hash
= hash_bytes(&value
, sf
->field
->n_bytes
, hash
);
7358 hash
= hash_int(hash
, 0);
7365 /* Returns an eviction group within 'table' with the given 'id', creating one
7367 static struct eviction_group
*
7368 eviction_group_find(struct oftable
*table
, uint32_t id
)
7369 OVS_REQUIRES(ofproto_mutex
)
7371 struct eviction_group
*evg
;
7373 HMAP_FOR_EACH_WITH_HASH (evg
, id_node
, id
, &table
->eviction_groups_by_id
) {
7377 evg
= xmalloc(sizeof *evg
);
7378 hmap_insert(&table
->eviction_groups_by_id
, &evg
->id_node
, id
);
7379 heap_insert(&table
->eviction_groups_by_size
, &evg
->size_node
,
7380 eviction_group_priority(0));
7381 heap_init(&evg
->rules
);
7386 /* Returns an eviction priority for 'rule'. The return value should be
7387 * interpreted so that higher priorities make a rule a more attractive
7388 * candidate for eviction. */
7390 rule_eviction_priority(struct ofproto
*ofproto
, struct rule
*rule
)
7391 OVS_REQUIRES(ofproto_mutex
)
7393 /* Calculate absolute time when this flow will expire. If it will never
7394 * expire, then return 0 to make it unevictable. */
7395 long long int expiration
= LLONG_MAX
;
7396 if (rule
->hard_timeout
) {
7397 /* 'modified' needs protection even when we hold 'ofproto_mutex'. */
7398 ovs_mutex_lock(&rule
->mutex
);
7399 long long int modified
= rule
->modified
;
7400 ovs_mutex_unlock(&rule
->mutex
);
7402 expiration
= modified
+ rule
->hard_timeout
* 1000;
7404 if (rule
->idle_timeout
) {
7405 uint64_t packets
, bytes
;
7407 long long int idle_expiration
;
7409 ofproto
->ofproto_class
->rule_get_stats(rule
, &packets
, &bytes
, &used
);
7410 idle_expiration
= used
+ rule
->idle_timeout
* 1000;
7411 expiration
= MIN(expiration
, idle_expiration
);
7413 if (expiration
== LLONG_MAX
) {
7417 /* Calculate the time of expiration as a number of (approximate) seconds
7418 * after program startup.
7420 * This should work OK for program runs that last UINT32_MAX seconds or
7421 * less. Therefore, please restart OVS at least once every 136 years. */
7422 uint32_t expiration_ofs
= (expiration
>> 10) - (time_boot_msec() >> 10);
7424 /* Combine expiration time with OpenFlow "importance" to form a single
7425 * priority value. We want flows with relatively low "importance" to be
7426 * evicted before even considering expiration time, so put "importance" in
7427 * the most significant bits and expiration time in the least significant
7430 * Small 'priority' should be evicted before those with large 'priority'.
7431 * The caller expects the opposite convention (a large return value being
7432 * more attractive for eviction) so we invert it before returning. */
7433 uint64_t priority
= ((uint64_t) rule
->importance
<< 32) + expiration_ofs
;
7434 return UINT64_MAX
- priority
;
7437 /* Adds 'rule' to an appropriate eviction group for its oftable's
7438 * configuration. Does nothing if 'rule''s oftable doesn't have eviction
7439 * enabled, or if 'rule' is a permanent rule (one that will never expire on its
7442 * The caller must ensure that 'rule' is not already in an eviction group. */
7444 eviction_group_add_rule(struct rule
*rule
)
7445 OVS_REQUIRES(ofproto_mutex
)
7447 struct ofproto
*ofproto
= rule
->ofproto
;
7448 struct oftable
*table
= &ofproto
->tables
[rule
->table_id
];
7451 /* Timeouts may be modified only when holding 'ofproto_mutex'. We have it
7452 * so no additional protection is needed. */
7453 has_timeout
= rule
->hard_timeout
|| rule
->idle_timeout
;
7455 if (table
->eviction_fields
&& has_timeout
) {
7456 struct eviction_group
*evg
;
7458 evg
= eviction_group_find(table
, eviction_group_hash_rule(rule
));
7460 rule
->eviction_group
= evg
;
7461 heap_insert(&evg
->rules
, &rule
->evg_node
,
7462 rule_eviction_priority(ofproto
, rule
));
7463 eviction_group_resized(table
, evg
);
7469 /* Initializes 'table'. */
7471 oftable_init(struct oftable
*table
)
7473 memset(table
, 0, sizeof *table
);
7474 classifier_init(&table
->cls
, flow_segment_u64s
);
7475 table
->max_flows
= UINT_MAX
;
7477 atomic_init(&table
->miss_config
, OFPUTIL_TABLE_MISS_DEFAULT
);
7479 classifier_set_prefix_fields(&table
->cls
, default_prefix_fields
,
7480 ARRAY_SIZE(default_prefix_fields
));
7482 atomic_init(&table
->n_matched
, 0);
7483 atomic_init(&table
->n_missed
, 0);
7486 /* Destroys 'table', including its classifier and eviction groups.
7488 * The caller is responsible for freeing 'table' itself. */
7490 oftable_destroy(struct oftable
*table
)
7492 ovs_assert(classifier_is_empty(&table
->cls
));
7493 ovs_mutex_lock(&ofproto_mutex
);
7494 oftable_disable_eviction(table
);
7495 ovs_mutex_unlock(&ofproto_mutex
);
7496 classifier_destroy(&table
->cls
);
7500 /* Changes the name of 'table' to 'name'. If 'name' is NULL or the empty
7501 * string, then 'table' will use its default name.
7503 * This only affects the name exposed for a table exposed through the OpenFlow
7504 * OFPST_TABLE (as printed by "ovs-ofctl dump-tables"). */
7506 oftable_set_name(struct oftable
*table
, const char *name
)
7508 if (name
&& name
[0]) {
7509 int len
= strnlen(name
, OFP_MAX_TABLE_NAME_LEN
);
7510 if (!table
->name
|| strncmp(name
, table
->name
, len
)) {
7512 table
->name
= xmemdup0(name
, len
);
7520 /* oftables support a choice of two policies when adding a rule would cause the
7521 * number of flows in the table to exceed the configured maximum number: either
7522 * they can refuse to add the new flow or they can evict some existing flow.
7523 * This function configures the former policy on 'table'. */
7525 oftable_disable_eviction(struct oftable
*table
)
7526 OVS_REQUIRES(ofproto_mutex
)
7528 if (table
->eviction_fields
) {
7529 struct eviction_group
*evg
, *next
;
7531 HMAP_FOR_EACH_SAFE (evg
, next
, id_node
,
7532 &table
->eviction_groups_by_id
) {
7533 eviction_group_destroy(table
, evg
);
7535 hmap_destroy(&table
->eviction_groups_by_id
);
7536 heap_destroy(&table
->eviction_groups_by_size
);
7538 free(table
->eviction_fields
);
7539 table
->eviction_fields
= NULL
;
7540 table
->n_eviction_fields
= 0;
7544 /* oftables support a choice of two policies when adding a rule would cause the
7545 * number of flows in the table to exceed the configured maximum number: either
7546 * they can refuse to add the new flow or they can evict some existing flow.
7547 * This function configures the latter policy on 'table', with fairness based
7548 * on the values of the 'n_fields' fields specified in 'fields'. (Specifying
7549 * 'n_fields' as 0 disables fairness.) */
7551 oftable_enable_eviction(struct oftable
*table
,
7552 const struct mf_subfield
*fields
, size_t n_fields
)
7553 OVS_REQUIRES(ofproto_mutex
)
7557 if (table
->eviction_fields
7558 && n_fields
== table
->n_eviction_fields
7560 || !memcmp(fields
, table
->eviction_fields
,
7561 n_fields
* sizeof *fields
))) {
7566 oftable_disable_eviction(table
);
7568 table
->n_eviction_fields
= n_fields
;
7569 table
->eviction_fields
= xmemdup(fields
, n_fields
* sizeof *fields
);
7571 table
->eviction_group_id_basis
= random_uint32();
7572 hmap_init(&table
->eviction_groups_by_id
);
7573 heap_init(&table
->eviction_groups_by_size
);
7575 CLS_FOR_EACH (rule
, cr
, &table
->cls
) {
7576 eviction_group_add_rule(rule
);
7580 /* Inserts 'rule' from the ofproto data structures BEFORE caller has inserted
7581 * it to the classifier. */
7583 ofproto_rule_insert__(struct ofproto
*ofproto
, struct rule
*rule
)
7584 OVS_REQUIRES(ofproto_mutex
)
7586 const struct rule_actions
*actions
= rule_get_actions(rule
);
7588 ovs_assert(rule
->removed
);
7590 if (rule
->hard_timeout
|| rule
->idle_timeout
) {
7591 list_insert(&ofproto
->expirable
, &rule
->expirable
);
7593 cookies_insert(ofproto
, rule
);
7594 eviction_group_add_rule(rule
);
7595 if (actions
->has_meter
) {
7596 meter_insert_rule(rule
);
7598 rule
->removed
= false;
7601 /* Removes 'rule' from the ofproto data structures. Caller may have deferred
7602 * the removal from the classifier. */
7604 ofproto_rule_remove__(struct ofproto
*ofproto
, struct rule
*rule
)
7605 OVS_REQUIRES(ofproto_mutex
)
7607 ovs_assert(!rule
->removed
);
7609 cookies_remove(ofproto
, rule
);
7611 eviction_group_remove_rule(rule
);
7612 if (!list_is_empty(&rule
->expirable
)) {
7613 list_remove(&rule
->expirable
);
7615 if (!list_is_empty(&rule
->meter_list_node
)) {
7616 list_remove(&rule
->meter_list_node
);
7617 list_init(&rule
->meter_list_node
);
7620 rule
->removed
= true;
7623 /* unixctl commands. */
7626 ofproto_lookup(const char *name
)
7628 struct ofproto
*ofproto
;
7630 HMAP_FOR_EACH_WITH_HASH (ofproto
, hmap_node
, hash_string(name
, 0),
7632 if (!strcmp(ofproto
->name
, name
)) {
7640 ofproto_unixctl_list(struct unixctl_conn
*conn
, int argc OVS_UNUSED
,
7641 const char *argv
[] OVS_UNUSED
, void *aux OVS_UNUSED
)
7643 struct ofproto
*ofproto
;
7647 HMAP_FOR_EACH (ofproto
, hmap_node
, &all_ofprotos
) {
7648 ds_put_format(&results
, "%s\n", ofproto
->name
);
7650 unixctl_command_reply(conn
, ds_cstr(&results
));
7651 ds_destroy(&results
);
7655 ofproto_unixctl_init(void)
7657 static bool registered
;
7663 unixctl_command_register("ofproto/list", "", 0, 0,
7664 ofproto_unixctl_list
, NULL
);
7667 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
7669 * This is deprecated. It is only for compatibility with broken device drivers
7670 * in old versions of Linux that do not properly support VLANs when VLAN
7671 * devices are not used. When broken device drivers are no longer in
7672 * widespread use, we will delete these interfaces. */
7674 /* Sets a 1-bit in the 4096-bit 'vlan_bitmap' for each VLAN ID that is matched
7675 * (exactly) by an OpenFlow rule in 'ofproto'. */
7677 ofproto_get_vlan_usage(struct ofproto
*ofproto
, unsigned long int *vlan_bitmap
)
7680 struct cls_rule target
;
7681 const struct oftable
*oftable
;
7683 match_init_catchall(&match
);
7684 match_set_vlan_vid_masked(&match
, htons(VLAN_CFI
), htons(VLAN_CFI
));
7685 cls_rule_init(&target
, &match
, 0, CLS_MAX_VERSION
);
7687 free(ofproto
->vlan_bitmap
);
7688 ofproto
->vlan_bitmap
= bitmap_allocate(4096);
7689 ofproto
->vlans_changed
= false;
7691 OFPROTO_FOR_EACH_TABLE (oftable
, ofproto
) {
7694 CLS_FOR_EACH_TARGET (rule
, cr
, &oftable
->cls
, &target
) {
7695 if (minimask_get_vid_mask(&rule
->cr
.match
.mask
) == VLAN_VID_MASK
) {
7696 uint16_t vid
= miniflow_get_vid(&rule
->cr
.match
.flow
);
7698 bitmap_set1(vlan_bitmap
, vid
);
7699 bitmap_set1(ofproto
->vlan_bitmap
, vid
);
7704 cls_rule_destroy(&target
);
7707 /* Returns true if new VLANs have come into use by the flow table since the
7708 * last call to ofproto_get_vlan_usage().
7710 * We don't track when old VLANs stop being used. */
7712 ofproto_has_vlan_usage_changed(const struct ofproto
*ofproto
)
7714 return ofproto
->vlans_changed
;
7717 /* Configures a VLAN splinter binding between the ports identified by OpenFlow
7718 * port numbers 'vlandev_ofp_port' and 'realdev_ofp_port'. If
7719 * 'realdev_ofp_port' is nonzero, then the VLAN device is enslaved to the real
7720 * device as a VLAN splinter for VLAN ID 'vid'. If 'realdev_ofp_port' is zero,
7721 * then the VLAN device is un-enslaved. */
7723 ofproto_port_set_realdev(struct ofproto
*ofproto
, ofp_port_t vlandev_ofp_port
,
7724 ofp_port_t realdev_ofp_port
, int vid
)
7726 struct ofport
*ofport
;
7729 ovs_assert(vlandev_ofp_port
!= realdev_ofp_port
);
7731 ofport
= ofproto_get_port(ofproto
, vlandev_ofp_port
);
7733 VLOG_WARN("%s: cannot set realdev on nonexistent port %"PRIu16
,
7734 ofproto
->name
, vlandev_ofp_port
);
7738 if (!ofproto
->ofproto_class
->set_realdev
) {
7739 if (!vlandev_ofp_port
) {
7742 VLOG_WARN("%s: vlan splinters not supported", ofproto
->name
);
7746 error
= ofproto
->ofproto_class
->set_realdev(ofport
, realdev_ofp_port
, vid
);
7748 VLOG_WARN("%s: setting realdev on port %"PRIu16
" (%s) failed (%s)",
7749 ofproto
->name
, vlandev_ofp_port
,
7750 netdev_get_name(ofport
->netdev
), ovs_strerror(error
));