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 "unaligned.h"
61 #include "openvswitch/vlog.h"
64 VLOG_DEFINE_THIS_MODULE(ofproto
);
66 COVERAGE_DEFINE(ofproto_flush
);
67 COVERAGE_DEFINE(ofproto_packet_out
);
68 COVERAGE_DEFINE(ofproto_queue_req
);
69 COVERAGE_DEFINE(ofproto_recv_openflow
);
70 COVERAGE_DEFINE(ofproto_reinit_ports
);
71 COVERAGE_DEFINE(ofproto_update_port
);
73 /* Default fields to use for prefix tries in each flow table, unless something
74 * else is configured. */
75 const enum mf_field_id default_prefix_fields
[2] =
76 { MFF_IPV4_DST
, MFF_IPV4_SRC
};
79 static void oftable_init(struct oftable
*);
80 static void oftable_destroy(struct oftable
*);
82 static void oftable_set_name(struct oftable
*, const char *name
);
84 static enum ofperr
evict_rules_from_table(struct oftable
*,
85 unsigned int extra_space
)
86 OVS_REQUIRES(ofproto_mutex
);
87 static void oftable_disable_eviction(struct oftable
*);
88 static void oftable_enable_eviction(struct oftable
*,
89 const struct mf_subfield
*fields
,
92 static void oftable_remove_rule(struct rule
*rule
) 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 uint32_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 ovs_be64 cookie
, ovs_be64 cookie_mask
,
157 ofp_port_t out_port
, uint32_t out_group
);
158 static void rule_criteria_require_rw(struct rule_criteria
*,
159 bool can_write_readonly
);
160 static void rule_criteria_destroy(struct rule_criteria
*);
162 static enum ofperr
collect_rules_loose(struct ofproto
*,
163 const struct rule_criteria
*,
164 struct rule_collection
*);
166 /* A packet that needs to be passed to rule_execute().
168 * (We can't do this immediately from ofopgroup_complete() because that holds
169 * ofproto_mutex, which rule_execute() needs released.) */
170 struct rule_execute
{
171 struct ovs_list list_node
; /* In struct ofproto's "rule_executes" list. */
172 struct rule
*rule
; /* Owns a reference to the rule. */
174 struct dp_packet
*packet
; /* Owns the packet. */
177 static void run_rule_executes(struct ofproto
*) OVS_EXCLUDED(ofproto_mutex
);
178 static void destroy_rule_executes(struct ofproto
*);
180 struct learned_cookie
{
182 /* In struct ofproto's 'learned_cookies' hmap. */
183 struct hmap_node hmap_node
OVS_GUARDED_BY(ofproto_mutex
);
185 /* In 'dead_cookies' list when removed from hmap. */
186 struct ovs_list list_node
;
190 ovs_be64 cookie
OVS_GUARDED_BY(ofproto_mutex
);
191 uint8_t table_id
OVS_GUARDED_BY(ofproto_mutex
);
193 /* Number of references from "learn" actions.
195 * When this drops to 0, all of the flows in 'table_id' with the specified
196 * 'cookie' are deleted. */
197 int n
OVS_GUARDED_BY(ofproto_mutex
);
200 static const struct ofpact_learn
*next_learn_with_delete(
201 const struct rule_actions
*, const struct ofpact_learn
*start
);
203 static void learned_cookies_inc(struct ofproto
*, const struct rule_actions
*)
204 OVS_REQUIRES(ofproto_mutex
);
205 static void learned_cookies_dec(struct ofproto
*, const struct rule_actions
*,
206 struct ovs_list
*dead_cookies
)
207 OVS_REQUIRES(ofproto_mutex
);
208 static void learned_cookies_flush(struct ofproto
*, struct ovs_list
*dead_cookies
)
209 OVS_REQUIRES(ofproto_mutex
);
212 static void ofport_destroy__(struct ofport
*) OVS_EXCLUDED(ofproto_mutex
);
213 static void ofport_destroy(struct ofport
*);
215 static void update_port(struct ofproto
*, const char *devname
);
216 static int init_ports(struct ofproto
*);
217 static void reinit_ports(struct ofproto
*);
219 static long long int ofport_get_usage(const struct ofproto
*,
220 ofp_port_t ofp_port
);
221 static void ofport_set_usage(struct ofproto
*, ofp_port_t ofp_port
,
222 long long int last_used
);
223 static void ofport_remove_usage(struct ofproto
*, ofp_port_t ofp_port
);
227 * Keeps track of the currently used and recently used ofport values and is
228 * used to prevent immediate recycling of ofport values. */
229 struct ofport_usage
{
230 struct hmap_node hmap_node
; /* In struct ofproto's "ofport_usage" hmap. */
231 ofp_port_t ofp_port
; /* OpenFlow port number. */
232 long long int last_used
; /* Last time the 'ofp_port' was used. LLONG_MAX
233 represents in-use ofports. */
237 static void ofproto_rule_send_removed(struct rule
*, uint8_t reason
);
238 static bool rule_is_readonly(const struct rule
*);
239 static void ofproto_rule_remove__(struct ofproto
*, struct rule
*)
240 OVS_REQUIRES(ofproto_mutex
);
242 /* The source of a flow_mod request, in the code that processes flow_mods.
244 * A flow table modification request can be generated externally, via OpenFlow,
245 * or internally through a function call. This structure indicates the source
246 * of an OpenFlow-generated flow_mod. For an internal flow_mod, it isn't
247 * meaningful and thus supplied as NULL. */
248 struct flow_mod_requester
{
249 struct ofconn
*ofconn
; /* Connection on which flow_mod arrived. */
250 ovs_be32 xid
; /* OpenFlow xid of flow_mod request. */
254 static enum ofperr
add_flow(struct ofproto
*, struct ofputil_flow_mod
*,
255 const struct flow_mod_requester
*);
257 static enum ofperr
modify_flows__(struct ofproto
*, struct ofputil_flow_mod
*,
258 const struct rule_collection
*,
259 const struct flow_mod_requester
*);
260 static void delete_flows__(const struct rule_collection
*,
261 enum ofp_flow_removed_reason
,
262 const struct flow_mod_requester
*)
263 OVS_REQUIRES(ofproto_mutex
);
265 static enum ofperr
send_buffered_packet(struct ofconn
*, uint32_t buffer_id
,
267 OVS_REQUIRES(ofproto_mutex
);
269 static bool ofproto_group_exists__(const struct ofproto
*ofproto
,
271 OVS_REQ_RDLOCK(ofproto
->groups_rwlock
);
272 static bool ofproto_group_exists(const struct ofproto
*ofproto
,
274 OVS_EXCLUDED(ofproto
->groups_rwlock
);
275 static enum ofperr
add_group(struct ofproto
*, struct ofputil_group_mod
*);
276 static void handle_openflow(struct ofconn
*, const struct ofpbuf
*);
277 static enum ofperr
handle_flow_mod__(struct ofproto
*,
278 struct ofputil_flow_mod
*,
279 const struct flow_mod_requester
*)
280 OVS_EXCLUDED(ofproto_mutex
);
281 static void calc_duration(long long int start
, long long int now
,
282 uint32_t *sec
, uint32_t *nsec
);
285 static uint64_t pick_datapath_id(const struct ofproto
*);
286 static uint64_t pick_fallback_dpid(void);
287 static void ofproto_destroy__(struct ofproto
*);
288 static void update_mtu(struct ofproto
*, struct ofport
*);
289 static void meter_delete(struct ofproto
*, uint32_t first
, uint32_t last
);
290 static void meter_insert_rule(struct rule
*);
293 static void ofproto_unixctl_init(void);
295 /* All registered ofproto classes, in probe order. */
296 static const struct ofproto_class
**ofproto_classes
;
297 static size_t n_ofproto_classes
;
298 static size_t allocated_ofproto_classes
;
300 /* Global lock that protects all flow table operations. */
301 struct ovs_mutex ofproto_mutex
= OVS_MUTEX_INITIALIZER
;
303 unsigned ofproto_flow_limit
= OFPROTO_FLOW_LIMIT_DEFAULT
;
304 unsigned ofproto_max_idle
= OFPROTO_MAX_IDLE_DEFAULT
;
306 size_t n_handlers
, n_revalidators
;
310 /* Map from datapath name to struct ofproto, for use by unixctl commands. */
311 static struct hmap all_ofprotos
= HMAP_INITIALIZER(&all_ofprotos
);
313 /* Initial mappings of port to OpenFlow number mappings. */
314 static struct shash init_ofp_ports
= SHASH_INITIALIZER(&init_ofp_ports
);
316 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(1, 5);
318 /* The default value of true waits for flow restore. */
319 static bool flow_restore_wait
= true;
321 /* Must be called to initialize the ofproto library.
323 * The caller may pass in 'iface_hints', which contains an shash of
324 * "iface_hint" elements indexed by the interface's name. The provider
325 * may use these hints to describe the startup configuration in order to
326 * reinitialize its state. The caller owns the provided data, so a
327 * provider will make copies of anything required. An ofproto provider
328 * will remove any existing state that is not described by the hint, and
329 * may choose to remove it all. */
331 ofproto_init(const struct shash
*iface_hints
)
333 struct shash_node
*node
;
336 ofproto_class_register(&ofproto_dpif_class
);
338 /* Make a local copy, since we don't own 'iface_hints' elements. */
339 SHASH_FOR_EACH(node
, iface_hints
) {
340 const struct iface_hint
*orig_hint
= node
->data
;
341 struct iface_hint
*new_hint
= xmalloc(sizeof *new_hint
);
342 const char *br_type
= ofproto_normalize_type(orig_hint
->br_type
);
344 new_hint
->br_name
= xstrdup(orig_hint
->br_name
);
345 new_hint
->br_type
= xstrdup(br_type
);
346 new_hint
->ofp_port
= orig_hint
->ofp_port
;
348 shash_add(&init_ofp_ports
, node
->name
, new_hint
);
351 for (i
= 0; i
< n_ofproto_classes
; i
++) {
352 ofproto_classes
[i
]->init(&init_ofp_ports
);
356 /* 'type' should be a normalized datapath type, as returned by
357 * ofproto_normalize_type(). Returns the corresponding ofproto_class
358 * structure, or a null pointer if there is none registered for 'type'. */
359 static const struct ofproto_class
*
360 ofproto_class_find__(const char *type
)
364 for (i
= 0; i
< n_ofproto_classes
; i
++) {
365 const struct ofproto_class
*class = ofproto_classes
[i
];
370 class->enumerate_types(&types
);
371 found
= sset_contains(&types
, type
);
372 sset_destroy(&types
);
378 VLOG_WARN("unknown datapath type %s", type
);
382 /* Registers a new ofproto class. After successful registration, new ofprotos
383 * of that type can be created using ofproto_create(). */
385 ofproto_class_register(const struct ofproto_class
*new_class
)
389 for (i
= 0; i
< n_ofproto_classes
; i
++) {
390 if (ofproto_classes
[i
] == new_class
) {
395 if (n_ofproto_classes
>= allocated_ofproto_classes
) {
396 ofproto_classes
= x2nrealloc(ofproto_classes
,
397 &allocated_ofproto_classes
,
398 sizeof *ofproto_classes
);
400 ofproto_classes
[n_ofproto_classes
++] = new_class
;
404 /* Unregisters a datapath provider. 'type' must have been previously
405 * registered and not currently be in use by any ofprotos. After
406 * unregistration new datapaths of that type cannot be opened using
407 * ofproto_create(). */
409 ofproto_class_unregister(const struct ofproto_class
*class)
413 for (i
= 0; i
< n_ofproto_classes
; i
++) {
414 if (ofproto_classes
[i
] == class) {
415 for (i
++; i
< n_ofproto_classes
; i
++) {
416 ofproto_classes
[i
- 1] = ofproto_classes
[i
];
422 VLOG_WARN("attempted to unregister an ofproto class that is not "
427 /* Clears 'types' and enumerates all registered ofproto types into it. The
428 * caller must first initialize the sset. */
430 ofproto_enumerate_types(struct sset
*types
)
435 for (i
= 0; i
< n_ofproto_classes
; i
++) {
436 ofproto_classes
[i
]->enumerate_types(types
);
440 /* Returns the fully spelled out name for the given ofproto 'type'.
442 * Normalized type string can be compared with strcmp(). Unnormalized type
443 * string might be the same even if they have different spellings. */
445 ofproto_normalize_type(const char *type
)
447 return type
&& type
[0] ? type
: "system";
450 /* Clears 'names' and enumerates the names of all known created ofprotos with
451 * the given 'type'. The caller must first initialize the sset. Returns 0 if
452 * successful, otherwise a positive errno value.
454 * Some kinds of datapaths might not be practically enumerable. This is not
455 * considered an error. */
457 ofproto_enumerate_names(const char *type
, struct sset
*names
)
459 const struct ofproto_class
*class = ofproto_class_find__(type
);
460 return class ? class->enumerate_names(type
, names
) : EAFNOSUPPORT
;
464 ofproto_create(const char *datapath_name
, const char *datapath_type
,
465 struct ofproto
**ofprotop
)
467 const struct ofproto_class
*class;
468 struct ofproto
*ofproto
;
474 ofproto_unixctl_init();
476 datapath_type
= ofproto_normalize_type(datapath_type
);
477 class = ofproto_class_find__(datapath_type
);
479 VLOG_WARN("could not create datapath %s of unknown type %s",
480 datapath_name
, datapath_type
);
484 ofproto
= class->alloc();
486 VLOG_ERR("failed to allocate datapath %s of type %s",
487 datapath_name
, datapath_type
);
492 ovs_mutex_lock(&ofproto_mutex
);
493 memset(ofproto
, 0, sizeof *ofproto
);
494 ofproto
->ofproto_class
= class;
495 ofproto
->name
= xstrdup(datapath_name
);
496 ofproto
->type
= xstrdup(datapath_type
);
497 hmap_insert(&all_ofprotos
, &ofproto
->hmap_node
,
498 hash_string(ofproto
->name
, 0));
499 ofproto
->datapath_id
= 0;
500 ofproto
->forward_bpdu
= false;
501 ofproto
->fallback_dpid
= pick_fallback_dpid();
502 ofproto
->mfr_desc
= NULL
;
503 ofproto
->hw_desc
= NULL
;
504 ofproto
->sw_desc
= NULL
;
505 ofproto
->serial_desc
= NULL
;
506 ofproto
->dp_desc
= NULL
;
507 ofproto
->frag_handling
= OFPC_FRAG_NORMAL
;
508 hmap_init(&ofproto
->ports
);
509 hmap_init(&ofproto
->ofport_usage
);
510 shash_init(&ofproto
->port_by_name
);
511 simap_init(&ofproto
->ofp_requests
);
512 ofproto
->max_ports
= ofp_to_u16(OFPP_MAX
);
513 ofproto
->eviction_group_timer
= LLONG_MIN
;
514 ofproto
->tables
= NULL
;
515 ofproto
->n_tables
= 0;
516 hindex_init(&ofproto
->cookies
);
517 hmap_init(&ofproto
->learned_cookies
);
518 list_init(&ofproto
->expirable
);
519 ofproto
->connmgr
= connmgr_create(ofproto
, datapath_name
, datapath_name
);
520 guarded_list_init(&ofproto
->rule_executes
);
521 ofproto
->vlan_bitmap
= NULL
;
522 ofproto
->vlans_changed
= false;
523 ofproto
->min_mtu
= INT_MAX
;
524 ovs_rwlock_init(&ofproto
->groups_rwlock
);
525 hmap_init(&ofproto
->groups
);
526 ovs_mutex_unlock(&ofproto_mutex
);
527 ofproto
->ogf
.types
= 0xf;
528 ofproto
->ogf
.capabilities
= OFPGFC_CHAINING
| OFPGFC_SELECT_LIVENESS
|
529 OFPGFC_SELECT_WEIGHT
;
530 for (i
= 0; i
< 4; i
++) {
531 ofproto
->ogf
.max_groups
[i
] = OFPG_MAX
;
532 ofproto
->ogf
.ofpacts
[i
] = (UINT64_C(1) << N_OFPACTS
) - 1;
535 error
= ofproto
->ofproto_class
->construct(ofproto
);
537 VLOG_ERR("failed to open datapath %s: %s",
538 datapath_name
, ovs_strerror(error
));
539 connmgr_destroy(ofproto
->connmgr
);
540 ofproto_destroy__(ofproto
);
544 /* Check that hidden tables, if any, are at the end. */
545 ovs_assert(ofproto
->n_tables
);
546 for (i
= 0; i
+ 1 < ofproto
->n_tables
; i
++) {
547 enum oftable_flags flags
= ofproto
->tables
[i
].flags
;
548 enum oftable_flags next_flags
= ofproto
->tables
[i
+ 1].flags
;
550 ovs_assert(!(flags
& OFTABLE_HIDDEN
) || next_flags
& OFTABLE_HIDDEN
);
553 ofproto
->datapath_id
= pick_datapath_id(ofproto
);
556 /* Initialize meters table. */
557 if (ofproto
->ofproto_class
->meter_get_features
) {
558 ofproto
->ofproto_class
->meter_get_features(ofproto
,
559 &ofproto
->meter_features
);
561 memset(&ofproto
->meter_features
, 0, sizeof ofproto
->meter_features
);
563 ofproto
->meters
= xzalloc((ofproto
->meter_features
.max_meters
+ 1)
564 * sizeof(struct meter
*));
570 /* Must be called (only) by an ofproto implementation in its constructor
571 * function. See the large comment on 'construct' in struct ofproto_class for
574 ofproto_init_tables(struct ofproto
*ofproto
, int n_tables
)
576 struct oftable
*table
;
578 ovs_assert(!ofproto
->n_tables
);
579 ovs_assert(n_tables
>= 1 && n_tables
<= 255);
581 ofproto
->n_tables
= n_tables
;
582 ofproto
->tables
= xmalloc(n_tables
* sizeof *ofproto
->tables
);
583 OFPROTO_FOR_EACH_TABLE (table
, ofproto
) {
588 /* To be optionally called (only) by an ofproto implementation in its
589 * constructor function. See the large comment on 'construct' in struct
590 * ofproto_class for details.
592 * Sets the maximum number of ports to 'max_ports'. The ofproto generic layer
593 * will then ensure that actions passed into the ofproto implementation will
594 * not refer to OpenFlow ports numbered 'max_ports' or higher. If this
595 * function is not called, there will be no such restriction.
597 * Reserved ports numbered OFPP_MAX and higher are special and not subject to
598 * the 'max_ports' restriction. */
600 ofproto_init_max_ports(struct ofproto
*ofproto
, uint16_t max_ports
)
602 ovs_assert(max_ports
<= ofp_to_u16(OFPP_MAX
));
603 ofproto
->max_ports
= max_ports
;
607 ofproto_get_datapath_id(const struct ofproto
*ofproto
)
609 return ofproto
->datapath_id
;
613 ofproto_set_datapath_id(struct ofproto
*p
, uint64_t datapath_id
)
615 uint64_t old_dpid
= p
->datapath_id
;
616 p
->datapath_id
= datapath_id
? datapath_id
: pick_datapath_id(p
);
617 if (p
->datapath_id
!= old_dpid
) {
618 /* Force all active connections to reconnect, since there is no way to
619 * notify a controller that the datapath ID has changed. */
620 ofproto_reconnect_controllers(p
);
625 ofproto_set_controllers(struct ofproto
*p
,
626 const struct ofproto_controller
*controllers
,
627 size_t n_controllers
, uint32_t allowed_versions
)
629 connmgr_set_controllers(p
->connmgr
, controllers
, n_controllers
,
634 ofproto_set_fail_mode(struct ofproto
*p
, enum ofproto_fail_mode fail_mode
)
636 connmgr_set_fail_mode(p
->connmgr
, fail_mode
);
639 /* Drops the connections between 'ofproto' and all of its controllers, forcing
640 * them to reconnect. */
642 ofproto_reconnect_controllers(struct ofproto
*ofproto
)
644 connmgr_reconnect(ofproto
->connmgr
);
647 /* Sets the 'n' TCP port addresses in 'extras' as ones to which 'ofproto''s
648 * in-band control should guarantee access, in the same way that in-band
649 * control guarantees access to OpenFlow controllers. */
651 ofproto_set_extra_in_band_remotes(struct ofproto
*ofproto
,
652 const struct sockaddr_in
*extras
, size_t n
)
654 connmgr_set_extra_in_band_remotes(ofproto
->connmgr
, extras
, n
);
657 /* Sets the OpenFlow queue used by flows set up by in-band control on
658 * 'ofproto' to 'queue_id'. If 'queue_id' is negative, then in-band control
659 * flows will use the default queue. */
661 ofproto_set_in_band_queue(struct ofproto
*ofproto
, int queue_id
)
663 connmgr_set_in_band_queue(ofproto
->connmgr
, queue_id
);
666 /* Sets the number of flows at which eviction from the kernel flow table
669 ofproto_set_flow_limit(unsigned limit
)
671 ofproto_flow_limit
= limit
;
674 /* Sets the maximum idle time for flows in the datapath before they are
677 ofproto_set_max_idle(unsigned max_idle
)
679 ofproto_max_idle
= max_idle
;
682 /* If forward_bpdu is true, the NORMAL action will forward frames with
683 * reserved (e.g. STP) destination Ethernet addresses. if forward_bpdu is false,
684 * the NORMAL action will drop these frames. */
686 ofproto_set_forward_bpdu(struct ofproto
*ofproto
, bool forward_bpdu
)
688 bool old_val
= ofproto
->forward_bpdu
;
689 ofproto
->forward_bpdu
= forward_bpdu
;
690 if (old_val
!= ofproto
->forward_bpdu
) {
691 if (ofproto
->ofproto_class
->forward_bpdu_changed
) {
692 ofproto
->ofproto_class
->forward_bpdu_changed(ofproto
);
697 /* Sets the MAC aging timeout for the OFPP_NORMAL action on 'ofproto' to
698 * 'idle_time', in seconds, and the maximum number of MAC table entries to
701 ofproto_set_mac_table_config(struct ofproto
*ofproto
, unsigned idle_time
,
704 if (ofproto
->ofproto_class
->set_mac_table_config
) {
705 ofproto
->ofproto_class
->set_mac_table_config(ofproto
, idle_time
,
710 /* Multicast snooping configuration. */
712 /* Configures multicast snooping on 'ofproto' using the settings
713 * defined in 's'. If 's' is NULL, disables multicast snooping.
715 * Returns 0 if successful, otherwise a positive errno value. */
717 ofproto_set_mcast_snooping(struct ofproto
*ofproto
,
718 const struct ofproto_mcast_snooping_settings
*s
)
720 return (ofproto
->ofproto_class
->set_mcast_snooping
721 ? ofproto
->ofproto_class
->set_mcast_snooping(ofproto
, s
)
725 /* Configures multicast snooping flood settings on 'ofp_port' of 'ofproto'.
727 * Returns 0 if successful, otherwise a positive errno value.*/
729 ofproto_port_set_mcast_snooping(struct ofproto
*ofproto
, void *aux
,
730 const struct ofproto_mcast_snooping_port_settings
*s
)
732 return (ofproto
->ofproto_class
->set_mcast_snooping_port
733 ? ofproto
->ofproto_class
->set_mcast_snooping_port(ofproto
, aux
, s
)
738 ofproto_set_n_dpdk_rxqs(int n_rxqs
)
740 n_dpdk_rxqs
= MAX(n_rxqs
, 0);
744 ofproto_set_cpu_mask(const char *cmask
)
748 pmd_cpu_mask
= cmask
? xstrdup(cmask
) : NULL
;
752 ofproto_set_threads(int n_handlers_
, int n_revalidators_
)
754 int threads
= MAX(count_cpu_cores(), 2);
756 n_revalidators
= MAX(n_revalidators_
, 0);
757 n_handlers
= MAX(n_handlers_
, 0);
759 if (!n_revalidators
) {
760 n_revalidators
= n_handlers
761 ? MAX(threads
- (int) n_handlers
, 1)
766 n_handlers
= MAX(threads
- (int) n_revalidators
, 1);
771 ofproto_set_dp_desc(struct ofproto
*p
, const char *dp_desc
)
774 p
->dp_desc
= dp_desc
? xstrdup(dp_desc
) : NULL
;
778 ofproto_set_snoops(struct ofproto
*ofproto
, const struct sset
*snoops
)
780 return connmgr_set_snoops(ofproto
->connmgr
, snoops
);
784 ofproto_set_netflow(struct ofproto
*ofproto
,
785 const struct netflow_options
*nf_options
)
787 if (nf_options
&& sset_is_empty(&nf_options
->collectors
)) {
791 if (ofproto
->ofproto_class
->set_netflow
) {
792 return ofproto
->ofproto_class
->set_netflow(ofproto
, nf_options
);
794 return nf_options
? EOPNOTSUPP
: 0;
799 ofproto_set_sflow(struct ofproto
*ofproto
,
800 const struct ofproto_sflow_options
*oso
)
802 if (oso
&& sset_is_empty(&oso
->targets
)) {
806 if (ofproto
->ofproto_class
->set_sflow
) {
807 return ofproto
->ofproto_class
->set_sflow(ofproto
, oso
);
809 return oso
? EOPNOTSUPP
: 0;
814 ofproto_set_ipfix(struct ofproto
*ofproto
,
815 const struct ofproto_ipfix_bridge_exporter_options
*bo
,
816 const struct ofproto_ipfix_flow_exporter_options
*fo
,
819 if (ofproto
->ofproto_class
->set_ipfix
) {
820 return ofproto
->ofproto_class
->set_ipfix(ofproto
, bo
, fo
, n_fo
);
822 return (bo
|| fo
) ? EOPNOTSUPP
: 0;
827 ofproto_set_flow_restore_wait(bool flow_restore_wait_db
)
829 flow_restore_wait
= flow_restore_wait_db
;
833 ofproto_get_flow_restore_wait(void)
835 return flow_restore_wait
;
839 /* Spanning Tree Protocol (STP) configuration. */
841 /* Configures STP on 'ofproto' using the settings defined in 's'. If
842 * 's' is NULL, disables STP.
844 * Returns 0 if successful, otherwise a positive errno value. */
846 ofproto_set_stp(struct ofproto
*ofproto
,
847 const struct ofproto_stp_settings
*s
)
849 return (ofproto
->ofproto_class
->set_stp
850 ? ofproto
->ofproto_class
->set_stp(ofproto
, s
)
854 /* Retrieves STP status of 'ofproto' and stores it in 's'. If the
855 * 'enabled' member of 's' is false, then the other members are not
858 * Returns 0 if successful, otherwise a positive errno value. */
860 ofproto_get_stp_status(struct ofproto
*ofproto
,
861 struct ofproto_stp_status
*s
)
863 return (ofproto
->ofproto_class
->get_stp_status
864 ? ofproto
->ofproto_class
->get_stp_status(ofproto
, s
)
868 /* Configures STP on 'ofp_port' of 'ofproto' using the settings defined
869 * in 's'. The caller is responsible for assigning STP port numbers
870 * (using the 'port_num' member in the range of 1 through 255, inclusive)
871 * and ensuring there are no duplicates. If the 's' is NULL, then STP
872 * is disabled on the port.
874 * Returns 0 if successful, otherwise a positive errno value.*/
876 ofproto_port_set_stp(struct ofproto
*ofproto
, ofp_port_t ofp_port
,
877 const struct ofproto_port_stp_settings
*s
)
879 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
881 VLOG_WARN("%s: cannot configure STP on nonexistent port %"PRIu16
,
882 ofproto
->name
, ofp_port
);
886 return (ofproto
->ofproto_class
->set_stp_port
887 ? ofproto
->ofproto_class
->set_stp_port(ofport
, s
)
891 /* Retrieves STP port status of 'ofp_port' on 'ofproto' and stores it in
892 * 's'. If the 'enabled' member in 's' is false, then the other members
893 * are not meaningful.
895 * Returns 0 if successful, otherwise a positive errno value.*/
897 ofproto_port_get_stp_status(struct ofproto
*ofproto
, ofp_port_t ofp_port
,
898 struct ofproto_port_stp_status
*s
)
900 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
902 VLOG_WARN_RL(&rl
, "%s: cannot get STP status on nonexistent "
903 "port %"PRIu16
, ofproto
->name
, ofp_port
);
907 return (ofproto
->ofproto_class
->get_stp_port_status
908 ? ofproto
->ofproto_class
->get_stp_port_status(ofport
, s
)
912 /* Retrieves STP port statistics of 'ofp_port' on 'ofproto' and stores it in
913 * 's'. If the 'enabled' member in 's' is false, then the other members
914 * are not meaningful.
916 * Returns 0 if successful, otherwise a positive errno value.*/
918 ofproto_port_get_stp_stats(struct ofproto
*ofproto
, ofp_port_t ofp_port
,
919 struct ofproto_port_stp_stats
*s
)
921 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
923 VLOG_WARN_RL(&rl
, "%s: cannot get STP stats on nonexistent "
924 "port %"PRIu16
, ofproto
->name
, ofp_port
);
928 return (ofproto
->ofproto_class
->get_stp_port_stats
929 ? ofproto
->ofproto_class
->get_stp_port_stats(ofport
, s
)
933 /* Rapid Spanning Tree Protocol (RSTP) configuration. */
935 /* Configures RSTP on 'ofproto' using the settings defined in 's'. If
936 * 's' is NULL, disables RSTP.
938 * Returns 0 if successful, otherwise a positive errno value. */
940 ofproto_set_rstp(struct ofproto
*ofproto
,
941 const struct ofproto_rstp_settings
*s
)
943 if (!ofproto
->ofproto_class
->set_rstp
) {
946 ofproto
->ofproto_class
->set_rstp(ofproto
, s
);
950 /* Retrieves RSTP status of 'ofproto' and stores it in 's'. If the
951 * 'enabled' member of 's' is false, then the other members are not
954 * Returns 0 if successful, otherwise a positive errno value. */
956 ofproto_get_rstp_status(struct ofproto
*ofproto
,
957 struct ofproto_rstp_status
*s
)
959 if (!ofproto
->ofproto_class
->get_rstp_status
) {
962 ofproto
->ofproto_class
->get_rstp_status(ofproto
, s
);
966 /* Configures RSTP on 'ofp_port' of 'ofproto' using the settings defined
967 * in 's'. The caller is responsible for assigning RSTP port numbers
968 * (using the 'port_num' member in the range of 1 through 255, inclusive)
969 * and ensuring there are no duplicates. If the 's' is NULL, then RSTP
970 * is disabled on the port.
972 * Returns 0 if successful, otherwise a positive errno value.*/
974 ofproto_port_set_rstp(struct ofproto
*ofproto
, ofp_port_t ofp_port
,
975 const struct ofproto_port_rstp_settings
*s
)
977 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
979 VLOG_WARN("%s: cannot configure RSTP on nonexistent port %"PRIu16
,
980 ofproto
->name
, ofp_port
);
984 if (!ofproto
->ofproto_class
->set_rstp_port
) {
987 ofproto
->ofproto_class
->set_rstp_port(ofport
, s
);
991 /* Retrieves RSTP port status of 'ofp_port' on 'ofproto' and stores it in
992 * 's'. If the 'enabled' member in 's' is false, then the other members
993 * are not meaningful.
995 * Returns 0 if successful, otherwise a positive errno value.*/
997 ofproto_port_get_rstp_status(struct ofproto
*ofproto
, ofp_port_t ofp_port
,
998 struct ofproto_port_rstp_status
*s
)
1000 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
1002 VLOG_WARN_RL(&rl
, "%s: cannot get RSTP status on nonexistent "
1003 "port %"PRIu16
, ofproto
->name
, ofp_port
);
1007 if (!ofproto
->ofproto_class
->get_rstp_port_status
) {
1010 ofproto
->ofproto_class
->get_rstp_port_status(ofport
, s
);
1014 /* Queue DSCP configuration. */
1016 /* Registers meta-data associated with the 'n_qdscp' Qualities of Service
1017 * 'queues' attached to 'ofport'. This data is not intended to be sufficient
1018 * to implement QoS. Instead, it is used to implement features which require
1019 * knowledge of what queues exist on a port, and some basic information about
1022 * Returns 0 if successful, otherwise a positive errno value. */
1024 ofproto_port_set_queues(struct ofproto
*ofproto
, ofp_port_t ofp_port
,
1025 const struct ofproto_port_queue
*queues
,
1028 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
1031 VLOG_WARN("%s: cannot set queues on nonexistent port %"PRIu16
,
1032 ofproto
->name
, ofp_port
);
1036 return (ofproto
->ofproto_class
->set_queues
1037 ? ofproto
->ofproto_class
->set_queues(ofport
, queues
, n_queues
)
1041 /* LLDP configuration. */
1043 ofproto_port_set_lldp(struct ofproto
*ofproto
,
1044 ofp_port_t ofp_port
,
1045 const struct smap
*cfg
)
1047 struct ofport
*ofport
;
1050 ofport
= ofproto_get_port(ofproto
, ofp_port
);
1052 VLOG_WARN("%s: cannot configure LLDP on nonexistent port %"PRIu16
,
1053 ofproto
->name
, ofp_port
);
1056 error
= (ofproto
->ofproto_class
->set_lldp
1057 ? ofproto
->ofproto_class
->set_lldp(ofport
, cfg
)
1060 VLOG_WARN("%s: lldp configuration on port %"PRIu16
" (%s) failed (%s)",
1061 ofproto
->name
, ofp_port
, netdev_get_name(ofport
->netdev
),
1062 ovs_strerror(error
));
1067 ofproto_set_aa(struct ofproto
*ofproto
, void *aux OVS_UNUSED
,
1068 const struct aa_settings
*s
)
1070 if (!ofproto
->ofproto_class
->set_aa
) {
1073 ofproto
->ofproto_class
->set_aa(ofproto
, s
);
1078 ofproto_aa_mapping_register(struct ofproto
*ofproto
, void *aux
,
1079 const struct aa_mapping_settings
*s
)
1081 if (!ofproto
->ofproto_class
->aa_mapping_set
) {
1084 ofproto
->ofproto_class
->aa_mapping_set(ofproto
, aux
, s
);
1089 ofproto_aa_mapping_unregister(struct ofproto
*ofproto
, void *aux
)
1091 if (!ofproto
->ofproto_class
->aa_mapping_unset
) {
1094 ofproto
->ofproto_class
->aa_mapping_unset(ofproto
, aux
);
1099 ofproto_aa_vlan_get_queued(struct ofproto
*ofproto
,
1100 struct ovs_list
*list
)
1102 if (!ofproto
->ofproto_class
->aa_vlan_get_queued
) {
1105 ofproto
->ofproto_class
->aa_vlan_get_queued(ofproto
, list
);
1110 ofproto_aa_vlan_get_queue_size(struct ofproto
*ofproto
)
1112 if (!ofproto
->ofproto_class
->aa_vlan_get_queue_size
) {
1115 return ofproto
->ofproto_class
->aa_vlan_get_queue_size(ofproto
);
1118 /* Connectivity Fault Management configuration. */
1120 /* Clears the CFM configuration from 'ofp_port' on 'ofproto'. */
1122 ofproto_port_clear_cfm(struct ofproto
*ofproto
, ofp_port_t ofp_port
)
1124 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
1125 if (ofport
&& ofproto
->ofproto_class
->set_cfm
) {
1126 ofproto
->ofproto_class
->set_cfm(ofport
, NULL
);
1130 /* Configures connectivity fault management on 'ofp_port' in 'ofproto'. Takes
1131 * basic configuration from the configuration members in 'cfm', and the remote
1132 * maintenance point ID from remote_mpid. Ignores the statistics members of
1135 * This function has no effect if 'ofproto' does not have a port 'ofp_port'. */
1137 ofproto_port_set_cfm(struct ofproto
*ofproto
, ofp_port_t ofp_port
,
1138 const struct cfm_settings
*s
)
1140 struct ofport
*ofport
;
1143 ofport
= ofproto_get_port(ofproto
, ofp_port
);
1145 VLOG_WARN("%s: cannot configure CFM on nonexistent port %"PRIu16
,
1146 ofproto
->name
, ofp_port
);
1150 /* XXX: For configuration simplicity, we only support one remote_mpid
1151 * outside of the CFM module. It's not clear if this is the correct long
1152 * term solution or not. */
1153 error
= (ofproto
->ofproto_class
->set_cfm
1154 ? ofproto
->ofproto_class
->set_cfm(ofport
, s
)
1157 VLOG_WARN("%s: CFM configuration on port %"PRIu16
" (%s) failed (%s)",
1158 ofproto
->name
, ofp_port
, netdev_get_name(ofport
->netdev
),
1159 ovs_strerror(error
));
1163 /* Configures BFD on 'ofp_port' in 'ofproto'. This function has no effect if
1164 * 'ofproto' does not have a port 'ofp_port'. */
1166 ofproto_port_set_bfd(struct ofproto
*ofproto
, ofp_port_t ofp_port
,
1167 const struct smap
*cfg
)
1169 struct ofport
*ofport
;
1172 ofport
= ofproto_get_port(ofproto
, ofp_port
);
1174 VLOG_WARN("%s: cannot configure bfd on nonexistent port %"PRIu16
,
1175 ofproto
->name
, ofp_port
);
1179 error
= (ofproto
->ofproto_class
->set_bfd
1180 ? ofproto
->ofproto_class
->set_bfd(ofport
, cfg
)
1183 VLOG_WARN("%s: bfd configuration on port %"PRIu16
" (%s) failed (%s)",
1184 ofproto
->name
, ofp_port
, netdev_get_name(ofport
->netdev
),
1185 ovs_strerror(error
));
1189 /* Checks the status change of BFD on 'ofport'.
1191 * Returns true if 'ofproto_class' does not support 'bfd_status_changed'. */
1193 ofproto_port_bfd_status_changed(struct ofproto
*ofproto
, ofp_port_t ofp_port
)
1195 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
1196 return (ofport
&& ofproto
->ofproto_class
->bfd_status_changed
1197 ? ofproto
->ofproto_class
->bfd_status_changed(ofport
)
1201 /* Populates 'status' with the status of BFD on 'ofport'. Returns 0 on
1202 * success. Returns a positive errno otherwise. Has no effect if 'ofp_port'
1203 * is not an OpenFlow port in 'ofproto'.
1205 * The caller must provide and own '*status'. */
1207 ofproto_port_get_bfd_status(struct ofproto
*ofproto
, ofp_port_t ofp_port
,
1208 struct smap
*status
)
1210 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
1211 return (ofport
&& ofproto
->ofproto_class
->get_bfd_status
1212 ? ofproto
->ofproto_class
->get_bfd_status(ofport
, status
)
1216 /* Checks the status of LACP negotiation for 'ofp_port' within ofproto.
1217 * Returns 1 if LACP partner information for 'ofp_port' is up-to-date,
1218 * 0 if LACP partner information is not current (generally indicating a
1219 * connectivity problem), or -1 if LACP is not enabled on 'ofp_port'. */
1221 ofproto_port_is_lacp_current(struct ofproto
*ofproto
, ofp_port_t ofp_port
)
1223 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
1224 return (ofport
&& ofproto
->ofproto_class
->port_is_lacp_current
1225 ? ofproto
->ofproto_class
->port_is_lacp_current(ofport
)
1230 ofproto_port_get_lacp_stats(const struct ofport
*port
, struct lacp_slave_stats
*stats
)
1232 struct ofproto
*ofproto
= port
->ofproto
;
1235 if (ofproto
->ofproto_class
->port_get_lacp_stats
) {
1236 error
= ofproto
->ofproto_class
->port_get_lacp_stats(port
, stats
);
1246 /* Registers a "bundle" associated with client data pointer 'aux' in 'ofproto'.
1247 * A bundle is the same concept as a Port in OVSDB, that is, it consists of one
1248 * or more "slave" devices (Interfaces, in OVSDB) along with a VLAN
1249 * configuration plus, if there is more than one slave, a bonding
1252 * If 'aux' is already registered then this function updates its configuration
1253 * to 's'. Otherwise, this function registers a new bundle.
1255 * Bundles only affect the NXAST_AUTOPATH action and output to the OFPP_NORMAL
1258 ofproto_bundle_register(struct ofproto
*ofproto
, void *aux
,
1259 const struct ofproto_bundle_settings
*s
)
1261 return (ofproto
->ofproto_class
->bundle_set
1262 ? ofproto
->ofproto_class
->bundle_set(ofproto
, aux
, s
)
1266 /* Unregisters the bundle registered on 'ofproto' with auxiliary data 'aux'.
1267 * If no such bundle has been registered, this has no effect. */
1269 ofproto_bundle_unregister(struct ofproto
*ofproto
, void *aux
)
1271 return ofproto_bundle_register(ofproto
, aux
, NULL
);
1275 /* Registers a mirror associated with client data pointer 'aux' in 'ofproto'.
1276 * If 'aux' is already registered then this function updates its configuration
1277 * to 's'. Otherwise, this function registers a new mirror. */
1279 ofproto_mirror_register(struct ofproto
*ofproto
, void *aux
,
1280 const struct ofproto_mirror_settings
*s
)
1282 return (ofproto
->ofproto_class
->mirror_set
1283 ? ofproto
->ofproto_class
->mirror_set(ofproto
, aux
, s
)
1287 /* Unregisters the mirror registered on 'ofproto' with auxiliary data 'aux'.
1288 * If no mirror has been registered, this has no effect. */
1290 ofproto_mirror_unregister(struct ofproto
*ofproto
, void *aux
)
1292 return ofproto_mirror_register(ofproto
, aux
, NULL
);
1295 /* Retrieves statistics from mirror associated with client data pointer
1296 * 'aux' in 'ofproto'. Stores packet and byte counts in 'packets' and
1297 * 'bytes', respectively. If a particular counters is not supported,
1298 * the appropriate argument is set to UINT64_MAX.
1301 ofproto_mirror_get_stats(struct ofproto
*ofproto
, void *aux
,
1302 uint64_t *packets
, uint64_t *bytes
)
1304 if (!ofproto
->ofproto_class
->mirror_get_stats
) {
1305 *packets
= *bytes
= UINT64_MAX
;
1309 return ofproto
->ofproto_class
->mirror_get_stats(ofproto
, aux
,
1313 /* Configures the VLANs whose bits are set to 1 in 'flood_vlans' as VLANs on
1314 * which all packets are flooded, instead of using MAC learning. If
1315 * 'flood_vlans' is NULL, then MAC learning applies to all VLANs.
1317 * Flood VLANs affect only the treatment of packets output to the OFPP_NORMAL
1320 ofproto_set_flood_vlans(struct ofproto
*ofproto
, unsigned long *flood_vlans
)
1322 return (ofproto
->ofproto_class
->set_flood_vlans
1323 ? ofproto
->ofproto_class
->set_flood_vlans(ofproto
, flood_vlans
)
1327 /* Returns true if 'aux' is a registered bundle that is currently in use as the
1328 * output for a mirror. */
1330 ofproto_is_mirror_output_bundle(const struct ofproto
*ofproto
, void *aux
)
1332 return (ofproto
->ofproto_class
->is_mirror_output_bundle
1333 ? ofproto
->ofproto_class
->is_mirror_output_bundle(ofproto
, aux
)
1337 /* Configuration of OpenFlow tables. */
1339 /* Returns the number of OpenFlow tables in 'ofproto'. */
1341 ofproto_get_n_tables(const struct ofproto
*ofproto
)
1343 return ofproto
->n_tables
;
1346 /* Returns the number of Controller visible OpenFlow tables
1347 * in 'ofproto'. This number will exclude Hidden tables.
1348 * This funtion's return value should be less or equal to that of
1349 * ofproto_get_n_tables() . */
1351 ofproto_get_n_visible_tables(const struct ofproto
*ofproto
)
1353 uint8_t n
= ofproto
->n_tables
;
1355 /* Count only non-hidden tables in the number of tables. (Hidden tables,
1356 * if present, are always at the end.) */
1357 while(n
&& (ofproto
->tables
[n
- 1].flags
& OFTABLE_HIDDEN
)) {
1364 /* Configures the OpenFlow table in 'ofproto' with id 'table_id' with the
1365 * settings from 's'. 'table_id' must be in the range 0 through the number of
1366 * OpenFlow tables in 'ofproto' minus 1, inclusive.
1368 * For read-only tables, only the name may be configured. */
1370 ofproto_configure_table(struct ofproto
*ofproto
, int table_id
,
1371 const struct ofproto_table_settings
*s
)
1373 struct oftable
*table
;
1375 ovs_assert(table_id
>= 0 && table_id
< ofproto
->n_tables
);
1376 table
= &ofproto
->tables
[table_id
];
1378 oftable_set_name(table
, s
->name
);
1380 if (table
->flags
& OFTABLE_READONLY
) {
1385 oftable_enable_eviction(table
, s
->groups
, s
->n_groups
);
1387 oftable_disable_eviction(table
);
1390 table
->max_flows
= s
->max_flows
;
1392 if (classifier_set_prefix_fields(&table
->cls
,
1393 s
->prefix_fields
, s
->n_prefix_fields
)) {
1394 /* XXX: Trigger revalidation. */
1397 ovs_mutex_lock(&ofproto_mutex
);
1398 evict_rules_from_table(table
, 0);
1399 ovs_mutex_unlock(&ofproto_mutex
);
1403 ofproto_has_snoops(const struct ofproto
*ofproto
)
1405 return connmgr_has_snoops(ofproto
->connmgr
);
1409 ofproto_get_snoops(const struct ofproto
*ofproto
, struct sset
*snoops
)
1411 connmgr_get_snoops(ofproto
->connmgr
, snoops
);
1414 /* Deletes 'rule' from 'ofproto'.
1416 * Within an ofproto implementation, this function allows an ofproto
1417 * implementation to destroy any rules that remain when its ->destruct()
1418 * function is called. This function is not suitable for use elsewhere in an
1419 * ofproto implementation.
1421 * This function implements steps 4.4 and 4.5 in the section titled "Rule Life
1422 * Cycle" in ofproto-provider.h. */
1424 ofproto_rule_delete(struct ofproto
*ofproto
, struct rule
*rule
)
1425 OVS_EXCLUDED(ofproto_mutex
)
1427 /* This skips the ofmonitor and flow-removed notifications because the
1428 * switch is being deleted and any OpenFlow channels have been or soon will
1430 ovs_mutex_lock(&ofproto_mutex
);
1431 oftable_remove_rule(rule
);
1432 ofproto
->ofproto_class
->rule_delete(rule
);
1433 ovs_mutex_unlock(&ofproto_mutex
);
1437 ofproto_flush__(struct ofproto
*ofproto
)
1438 OVS_EXCLUDED(ofproto_mutex
)
1440 struct oftable
*table
;
1442 /* This will flush all datapath flows. */
1443 if (ofproto
->ofproto_class
->flush
) {
1444 ofproto
->ofproto_class
->flush(ofproto
);
1447 /* XXX: There is a small race window here, where new datapath flows can be
1448 * created by upcall handlers based on the existing flow table. We can not
1449 * call ofproto class flush while holding 'ofproto_mutex' to prevent this,
1450 * as then we could deadlock on syncing with the handler threads waiting on
1451 * the same mutex. */
1453 ovs_mutex_lock(&ofproto_mutex
);
1454 OFPROTO_FOR_EACH_TABLE (table
, ofproto
) {
1455 struct rule_collection rules
;
1458 if (table
->flags
& OFTABLE_HIDDEN
) {
1462 rule_collection_init(&rules
);
1464 CLS_FOR_EACH (rule
, cr
, &table
->cls
) {
1465 rule_collection_add(&rules
, rule
);
1467 delete_flows__(&rules
, OFPRR_DELETE
, NULL
);
1468 rule_collection_destroy(&rules
);
1470 /* XXX: Concurrent handler threads may insert new learned flows based on
1471 * learn actions of the now deleted flows right after we release
1472 * 'ofproto_mutex'. */
1473 ovs_mutex_unlock(&ofproto_mutex
);
1476 static void delete_group(struct ofproto
*ofproto
, uint32_t group_id
);
1479 ofproto_destroy__(struct ofproto
*ofproto
)
1480 OVS_EXCLUDED(ofproto_mutex
)
1482 struct oftable
*table
;
1484 destroy_rule_executes(ofproto
);
1485 delete_group(ofproto
, OFPG_ALL
);
1487 guarded_list_destroy(&ofproto
->rule_executes
);
1488 ovs_rwlock_destroy(&ofproto
->groups_rwlock
);
1489 hmap_destroy(&ofproto
->groups
);
1491 hmap_remove(&all_ofprotos
, &ofproto
->hmap_node
);
1492 free(ofproto
->name
);
1493 free(ofproto
->type
);
1494 free(ofproto
->mfr_desc
);
1495 free(ofproto
->hw_desc
);
1496 free(ofproto
->sw_desc
);
1497 free(ofproto
->serial_desc
);
1498 free(ofproto
->dp_desc
);
1499 hmap_destroy(&ofproto
->ports
);
1500 hmap_destroy(&ofproto
->ofport_usage
);
1501 shash_destroy(&ofproto
->port_by_name
);
1502 simap_destroy(&ofproto
->ofp_requests
);
1504 OFPROTO_FOR_EACH_TABLE (table
, ofproto
) {
1505 oftable_destroy(table
);
1507 free(ofproto
->tables
);
1509 ovs_assert(hindex_is_empty(&ofproto
->cookies
));
1510 hindex_destroy(&ofproto
->cookies
);
1512 ovs_assert(hmap_is_empty(&ofproto
->learned_cookies
));
1513 hmap_destroy(&ofproto
->learned_cookies
);
1515 free(ofproto
->vlan_bitmap
);
1517 ofproto
->ofproto_class
->dealloc(ofproto
);
1521 ofproto_destroy(struct ofproto
*p
)
1522 OVS_EXCLUDED(ofproto_mutex
)
1524 struct ofport
*ofport
, *next_ofport
;
1525 struct ofport_usage
*usage
, *next_usage
;
1532 meter_delete(p
, 1, p
->meter_features
.max_meters
);
1533 p
->meter_features
.max_meters
= 0;
1539 HMAP_FOR_EACH_SAFE (ofport
, next_ofport
, hmap_node
, &p
->ports
) {
1540 ofport_destroy(ofport
);
1543 HMAP_FOR_EACH_SAFE (usage
, next_usage
, hmap_node
, &p
->ofport_usage
) {
1544 hmap_remove(&p
->ofport_usage
, &usage
->hmap_node
);
1548 p
->ofproto_class
->destruct(p
);
1550 /* We should not postpone this because it involves deleting a listening
1551 * socket which we may want to reopen soon. 'connmgr' should not be used
1552 * by other threads */
1553 connmgr_destroy(p
->connmgr
);
1555 /* Destroying rules is deferred, must have 'ofproto' around for them. */
1556 ovsrcu_postpone(ofproto_destroy__
, p
);
1559 /* Destroys the datapath with the respective 'name' and 'type'. With the Linux
1560 * kernel datapath, for example, this destroys the datapath in the kernel, and
1561 * with the netdev-based datapath, it tears down the data structures that
1562 * represent the datapath.
1564 * The datapath should not be currently open as an ofproto. */
1566 ofproto_delete(const char *name
, const char *type
)
1568 const struct ofproto_class
*class = ofproto_class_find__(type
);
1569 return (!class ? EAFNOSUPPORT
1570 : !class->del
? EACCES
1571 : class->del(type
, name
));
1575 process_port_change(struct ofproto
*ofproto
, int error
, char *devname
)
1577 if (error
== ENOBUFS
) {
1578 reinit_ports(ofproto
);
1579 } else if (!error
) {
1580 update_port(ofproto
, devname
);
1586 ofproto_type_run(const char *datapath_type
)
1588 const struct ofproto_class
*class;
1591 datapath_type
= ofproto_normalize_type(datapath_type
);
1592 class = ofproto_class_find__(datapath_type
);
1594 error
= class->type_run
? class->type_run(datapath_type
) : 0;
1595 if (error
&& error
!= EAGAIN
) {
1596 VLOG_ERR_RL(&rl
, "%s: type_run failed (%s)",
1597 datapath_type
, ovs_strerror(error
));
1603 ofproto_type_wait(const char *datapath_type
)
1605 const struct ofproto_class
*class;
1607 datapath_type
= ofproto_normalize_type(datapath_type
);
1608 class = ofproto_class_find__(datapath_type
);
1610 if (class->type_wait
) {
1611 class->type_wait(datapath_type
);
1616 ofproto_run(struct ofproto
*p
)
1621 error
= p
->ofproto_class
->run(p
);
1622 if (error
&& error
!= EAGAIN
) {
1623 VLOG_ERR_RL(&rl
, "%s: run failed (%s)", p
->name
, ovs_strerror(error
));
1626 run_rule_executes(p
);
1628 /* Restore the eviction group heap invariant occasionally. */
1629 if (p
->eviction_group_timer
< time_msec()) {
1632 p
->eviction_group_timer
= time_msec() + 1000;
1634 for (i
= 0; i
< p
->n_tables
; i
++) {
1635 struct oftable
*table
= &p
->tables
[i
];
1636 struct eviction_group
*evg
;
1639 if (!table
->eviction_fields
) {
1643 if (classifier_count(&table
->cls
) > 100000) {
1644 static struct vlog_rate_limit count_rl
=
1645 VLOG_RATE_LIMIT_INIT(1, 1);
1646 VLOG_WARN_RL(&count_rl
, "Table %"PRIuSIZE
" has an excessive"
1647 " number of rules: %d", i
,
1648 classifier_count(&table
->cls
));
1651 ovs_mutex_lock(&ofproto_mutex
);
1652 CLS_FOR_EACH (rule
, cr
, &table
->cls
) {
1653 if (rule
->idle_timeout
|| rule
->hard_timeout
) {
1654 if (!rule
->eviction_group
) {
1655 eviction_group_add_rule(rule
);
1657 heap_raw_change(&rule
->evg_node
,
1658 rule_eviction_priority(p
, rule
));
1663 HEAP_FOR_EACH (evg
, size_node
, &table
->eviction_groups_by_size
) {
1664 heap_rebuild(&evg
->rules
);
1666 ovs_mutex_unlock(&ofproto_mutex
);
1670 if (p
->ofproto_class
->port_poll
) {
1673 while ((error
= p
->ofproto_class
->port_poll(p
, &devname
)) != EAGAIN
) {
1674 process_port_change(p
, error
, devname
);
1678 new_seq
= seq_read(connectivity_seq_get());
1679 if (new_seq
!= p
->change_seq
) {
1680 struct sset devnames
;
1681 const char *devname
;
1682 struct ofport
*ofport
;
1684 /* Update OpenFlow port status for any port whose netdev has changed.
1686 * Refreshing a given 'ofport' can cause an arbitrary ofport to be
1687 * destroyed, so it's not safe to update ports directly from the
1688 * HMAP_FOR_EACH loop, or even to use HMAP_FOR_EACH_SAFE. Instead, we
1689 * need this two-phase approach. */
1690 sset_init(&devnames
);
1691 HMAP_FOR_EACH (ofport
, hmap_node
, &p
->ports
) {
1692 uint64_t port_change_seq
;
1694 port_change_seq
= netdev_get_change_seq(ofport
->netdev
);
1695 if (ofport
->change_seq
!= port_change_seq
) {
1696 ofport
->change_seq
= port_change_seq
;
1697 sset_add(&devnames
, netdev_get_name(ofport
->netdev
));
1700 SSET_FOR_EACH (devname
, &devnames
) {
1701 update_port(p
, devname
);
1703 sset_destroy(&devnames
);
1705 p
->change_seq
= new_seq
;
1708 connmgr_run(p
->connmgr
, handle_openflow
);
1714 ofproto_wait(struct ofproto
*p
)
1716 p
->ofproto_class
->wait(p
);
1717 if (p
->ofproto_class
->port_poll_wait
) {
1718 p
->ofproto_class
->port_poll_wait(p
);
1720 seq_wait(connectivity_seq_get(), p
->change_seq
);
1721 connmgr_wait(p
->connmgr
);
1725 ofproto_is_alive(const struct ofproto
*p
)
1727 return connmgr_has_controllers(p
->connmgr
);
1730 /* Adds some memory usage statistics for 'ofproto' into 'usage', for use with
1731 * memory_report(). */
1733 ofproto_get_memory_usage(const struct ofproto
*ofproto
, struct simap
*usage
)
1735 const struct oftable
*table
;
1736 unsigned int n_rules
;
1738 simap_increase(usage
, "ports", hmap_count(&ofproto
->ports
));
1741 OFPROTO_FOR_EACH_TABLE (table
, ofproto
) {
1742 n_rules
+= classifier_count(&table
->cls
);
1744 simap_increase(usage
, "rules", n_rules
);
1746 if (ofproto
->ofproto_class
->get_memory_usage
) {
1747 ofproto
->ofproto_class
->get_memory_usage(ofproto
, usage
);
1750 connmgr_get_memory_usage(ofproto
->connmgr
, usage
);
1754 ofproto_type_get_memory_usage(const char *datapath_type
, struct simap
*usage
)
1756 const struct ofproto_class
*class;
1758 datapath_type
= ofproto_normalize_type(datapath_type
);
1759 class = ofproto_class_find__(datapath_type
);
1761 if (class && class->type_get_memory_usage
) {
1762 class->type_get_memory_usage(datapath_type
, usage
);
1767 ofproto_get_ofproto_controller_info(const struct ofproto
*ofproto
,
1770 connmgr_get_controller_info(ofproto
->connmgr
, info
);
1774 ofproto_free_ofproto_controller_info(struct shash
*info
)
1776 connmgr_free_controller_info(info
);
1779 /* Makes a deep copy of 'old' into 'port'. */
1781 ofproto_port_clone(struct ofproto_port
*port
, const struct ofproto_port
*old
)
1783 port
->name
= xstrdup(old
->name
);
1784 port
->type
= xstrdup(old
->type
);
1785 port
->ofp_port
= old
->ofp_port
;
1788 /* Frees memory allocated to members of 'ofproto_port'.
1790 * Do not call this function on an ofproto_port obtained from
1791 * ofproto_port_dump_next(): that function retains ownership of the data in the
1794 ofproto_port_destroy(struct ofproto_port
*ofproto_port
)
1796 free(ofproto_port
->name
);
1797 free(ofproto_port
->type
);
1800 /* Initializes 'dump' to begin dumping the ports in an ofproto.
1802 * This function provides no status indication. An error status for the entire
1803 * dump operation is provided when it is completed by calling
1804 * ofproto_port_dump_done().
1807 ofproto_port_dump_start(struct ofproto_port_dump
*dump
,
1808 const struct ofproto
*ofproto
)
1810 dump
->ofproto
= ofproto
;
1811 dump
->error
= ofproto
->ofproto_class
->port_dump_start(ofproto
,
1815 /* Attempts to retrieve another port from 'dump', which must have been created
1816 * with ofproto_port_dump_start(). On success, stores a new ofproto_port into
1817 * 'port' and returns true. On failure, returns false.
1819 * Failure might indicate an actual error or merely that the last port has been
1820 * dumped. An error status for the entire dump operation is provided when it
1821 * is completed by calling ofproto_port_dump_done().
1823 * The ofproto owns the data stored in 'port'. It will remain valid until at
1824 * least the next time 'dump' is passed to ofproto_port_dump_next() or
1825 * ofproto_port_dump_done(). */
1827 ofproto_port_dump_next(struct ofproto_port_dump
*dump
,
1828 struct ofproto_port
*port
)
1830 const struct ofproto
*ofproto
= dump
->ofproto
;
1836 dump
->error
= ofproto
->ofproto_class
->port_dump_next(ofproto
, dump
->state
,
1839 ofproto
->ofproto_class
->port_dump_done(ofproto
, dump
->state
);
1845 /* Completes port table dump operation 'dump', which must have been created
1846 * with ofproto_port_dump_start(). Returns 0 if the dump operation was
1847 * error-free, otherwise a positive errno value describing the problem. */
1849 ofproto_port_dump_done(struct ofproto_port_dump
*dump
)
1851 const struct ofproto
*ofproto
= dump
->ofproto
;
1853 dump
->error
= ofproto
->ofproto_class
->port_dump_done(ofproto
,
1856 return dump
->error
== EOF
? 0 : dump
->error
;
1859 /* Returns the type to pass to netdev_open() when a datapath of type
1860 * 'datapath_type' has a port of type 'port_type', for a few special
1861 * cases when a netdev type differs from a port type. For example, when
1862 * using the userspace datapath, a port of type "internal" needs to be
1865 * Returns either 'type' itself or a string literal, which must not be
1868 ofproto_port_open_type(const char *datapath_type
, const char *port_type
)
1870 const struct ofproto_class
*class;
1872 datapath_type
= ofproto_normalize_type(datapath_type
);
1873 class = ofproto_class_find__(datapath_type
);
1878 return (class->port_open_type
1879 ? class->port_open_type(datapath_type
, port_type
)
1883 /* Attempts to add 'netdev' as a port on 'ofproto'. If 'ofp_portp' is
1884 * non-null and '*ofp_portp' is not OFPP_NONE, attempts to use that as
1885 * the port's OpenFlow port number.
1887 * If successful, returns 0 and sets '*ofp_portp' to the new port's
1888 * OpenFlow port number (if 'ofp_portp' is non-null). On failure,
1889 * returns a positive errno value and sets '*ofp_portp' to OFPP_NONE (if
1890 * 'ofp_portp' is non-null). */
1892 ofproto_port_add(struct ofproto
*ofproto
, struct netdev
*netdev
,
1893 ofp_port_t
*ofp_portp
)
1895 ofp_port_t ofp_port
= ofp_portp
? *ofp_portp
: OFPP_NONE
;
1898 error
= ofproto
->ofproto_class
->port_add(ofproto
, netdev
);
1900 const char *netdev_name
= netdev_get_name(netdev
);
1902 simap_put(&ofproto
->ofp_requests
, netdev_name
,
1903 ofp_to_u16(ofp_port
));
1904 update_port(ofproto
, netdev_name
);
1907 *ofp_portp
= OFPP_NONE
;
1909 struct ofproto_port ofproto_port
;
1911 error
= ofproto_port_query_by_name(ofproto
,
1912 netdev_get_name(netdev
),
1915 *ofp_portp
= ofproto_port
.ofp_port
;
1916 ofproto_port_destroy(&ofproto_port
);
1923 /* Looks up a port named 'devname' in 'ofproto'. On success, returns 0 and
1924 * initializes '*port' appropriately; on failure, returns a positive errno
1927 * The caller owns the data in 'ofproto_port' and must free it with
1928 * ofproto_port_destroy() when it is no longer needed. */
1930 ofproto_port_query_by_name(const struct ofproto
*ofproto
, const char *devname
,
1931 struct ofproto_port
*port
)
1935 error
= ofproto
->ofproto_class
->port_query_by_name(ofproto
, devname
, port
);
1937 memset(port
, 0, sizeof *port
);
1942 /* Deletes port number 'ofp_port' from the datapath for 'ofproto'.
1943 * Returns 0 if successful, otherwise a positive errno. */
1945 ofproto_port_del(struct ofproto
*ofproto
, ofp_port_t ofp_port
)
1947 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
1948 const char *name
= ofport
? netdev_get_name(ofport
->netdev
) : "<unknown>";
1949 struct simap_node
*ofp_request_node
;
1952 ofp_request_node
= simap_find(&ofproto
->ofp_requests
, name
);
1953 if (ofp_request_node
) {
1954 simap_delete(&ofproto
->ofp_requests
, ofp_request_node
);
1957 error
= ofproto
->ofproto_class
->port_del(ofproto
, ofp_port
);
1958 if (!error
&& ofport
) {
1959 /* 'name' is the netdev's name and update_port() is going to close the
1960 * netdev. Just in case update_port() refers to 'name' after it
1961 * destroys 'ofport', make a copy of it around the update_port()
1963 char *devname
= xstrdup(name
);
1964 update_port(ofproto
, devname
);
1971 flow_mod_init(struct ofputil_flow_mod
*fm
,
1972 const struct match
*match
, int priority
,
1973 const struct ofpact
*ofpacts
, size_t ofpacts_len
,
1974 enum ofp_flow_mod_command command
)
1976 memset(fm
, 0, sizeof *fm
);
1978 fm
->priority
= priority
;
1981 fm
->modify_cookie
= false;
1983 fm
->command
= command
;
1984 fm
->idle_timeout
= 0;
1985 fm
->hard_timeout
= 0;
1987 fm
->buffer_id
= UINT32_MAX
;
1988 fm
->out_port
= OFPP_ANY
;
1989 fm
->out_group
= OFPG_ANY
;
1991 fm
->ofpacts
= CONST_CAST(struct ofpact
*, ofpacts
);
1992 fm
->ofpacts_len
= ofpacts_len
;
1993 fm
->delete_reason
= OFPRR_DELETE
;
1997 simple_flow_mod(struct ofproto
*ofproto
,
1998 const struct match
*match
, int priority
,
1999 const struct ofpact
*ofpacts
, size_t ofpacts_len
,
2000 enum ofp_flow_mod_command command
)
2002 struct ofputil_flow_mod fm
;
2004 flow_mod_init(&fm
, match
, priority
, ofpacts
, ofpacts_len
, command
);
2006 return handle_flow_mod__(ofproto
, &fm
, NULL
);
2009 /* Adds a flow to OpenFlow flow table 0 in 'p' that matches 'cls_rule' and
2010 * performs the 'n_actions' actions in 'actions'. The new flow will not
2013 * If cls_rule->priority is in the range of priorities supported by OpenFlow
2014 * (0...65535, inclusive) then the flow will be visible to OpenFlow
2015 * controllers; otherwise, it will be hidden.
2017 * The caller retains ownership of 'cls_rule' and 'ofpacts'.
2019 * This is a helper function for in-band control and fail-open. */
2021 ofproto_add_flow(struct ofproto
*ofproto
, const struct match
*match
,
2023 const struct ofpact
*ofpacts
, size_t ofpacts_len
)
2024 OVS_EXCLUDED(ofproto_mutex
)
2026 const struct rule
*rule
;
2029 /* First do a cheap check whether the rule we're looking for already exists
2030 * with the actions that we want. If it does, then we're done. */
2031 rule
= rule_from_cls_rule(classifier_find_match_exactly(
2032 &ofproto
->tables
[0].cls
, match
, priority
));
2034 const struct rule_actions
*actions
= rule_get_actions(rule
);
2035 must_add
= !ofpacts_equal(actions
->ofpacts
, actions
->ofpacts_len
,
2036 ofpacts
, ofpacts_len
);
2041 /* If there's no such rule or the rule doesn't have the actions we want,
2042 * fall back to a executing a full flow mod. We can't optimize this at
2043 * all because we didn't take enough locks above to ensure that the flow
2044 * table didn't already change beneath us. */
2046 simple_flow_mod(ofproto
, match
, priority
, ofpacts
, ofpacts_len
,
2047 OFPFC_MODIFY_STRICT
);
2051 /* Executes the flow modification specified in 'fm'. Returns 0 on success, an
2052 * OFPERR_* OpenFlow error code on failure, or OFPROTO_POSTPONE if the
2053 * operation cannot be initiated now but may be retried later.
2055 * This is a helper function for in-band control and fail-open and the "learn"
2058 ofproto_flow_mod(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
)
2059 OVS_EXCLUDED(ofproto_mutex
)
2061 /* Optimize for the most common case of a repeated learn action.
2062 * If an identical flow already exists we only need to update its
2063 * 'modified' time. */
2064 if (fm
->command
== OFPFC_MODIFY_STRICT
&& fm
->table_id
!= OFPTT_ALL
2065 && !(fm
->flags
& OFPUTIL_FF_RESET_COUNTS
)) {
2066 struct oftable
*table
= &ofproto
->tables
[fm
->table_id
];
2070 rule
= rule_from_cls_rule(classifier_find_match_exactly(&table
->cls
,
2074 /* Reading many of the rule fields and writing on 'modified'
2075 * requires the rule->mutex. Also, rule->actions may change
2076 * if rule->mutex is not held. */
2077 const struct rule_actions
*actions
;
2079 ovs_mutex_lock(&rule
->mutex
);
2080 actions
= rule_get_actions(rule
);
2081 if (rule
->idle_timeout
== fm
->idle_timeout
2082 && rule
->hard_timeout
== fm
->hard_timeout
2083 && rule
->importance
== fm
->importance
2084 && rule
->flags
== (fm
->flags
& OFPUTIL_FF_STATE
)
2085 && (!fm
->modify_cookie
|| (fm
->new_cookie
== rule
->flow_cookie
))
2086 && ofpacts_equal(fm
->ofpacts
, fm
->ofpacts_len
,
2087 actions
->ofpacts
, actions
->ofpacts_len
)) {
2088 /* Rule already exists and need not change, only update the
2089 modified timestamp. */
2090 rule
->modified
= time_msec();
2093 ovs_mutex_unlock(&rule
->mutex
);
2101 return handle_flow_mod__(ofproto
, fm
, NULL
);
2104 /* Searches for a rule with matching criteria exactly equal to 'target' in
2105 * ofproto's table 0 and, if it finds one, deletes it.
2107 * This is a helper function for in-band control and fail-open. */
2109 ofproto_delete_flow(struct ofproto
*ofproto
,
2110 const struct match
*target
, int priority
)
2111 OVS_EXCLUDED(ofproto_mutex
)
2113 struct classifier
*cls
= &ofproto
->tables
[0].cls
;
2116 /* First do a cheap check whether the rule we're looking for has already
2117 * been deleted. If so, then we're done. */
2118 rule
= rule_from_cls_rule(classifier_find_match_exactly(cls
, target
,
2124 /* Execute a flow mod. We can't optimize this at all because we didn't
2125 * take enough locks above to ensure that the flow table didn't already
2126 * change beneath us. */
2127 simple_flow_mod(ofproto
, target
, priority
, NULL
, 0, OFPFC_DELETE_STRICT
);
2130 /* Delete all of the flows from all of ofproto's flow tables, then reintroduce
2131 * the flows required by in-band control and fail-open. */
2133 ofproto_flush_flows(struct ofproto
*ofproto
)
2135 COVERAGE_INC(ofproto_flush
);
2136 ofproto_flush__(ofproto
);
2137 connmgr_flushed(ofproto
->connmgr
);
2141 reinit_ports(struct ofproto
*p
)
2143 struct ofproto_port_dump dump
;
2144 struct sset devnames
;
2145 struct ofport
*ofport
;
2146 struct ofproto_port ofproto_port
;
2147 const char *devname
;
2149 COVERAGE_INC(ofproto_reinit_ports
);
2151 sset_init(&devnames
);
2152 HMAP_FOR_EACH (ofport
, hmap_node
, &p
->ports
) {
2153 sset_add(&devnames
, netdev_get_name(ofport
->netdev
));
2155 OFPROTO_PORT_FOR_EACH (&ofproto_port
, &dump
, p
) {
2156 sset_add(&devnames
, ofproto_port
.name
);
2159 SSET_FOR_EACH (devname
, &devnames
) {
2160 update_port(p
, devname
);
2162 sset_destroy(&devnames
);
2166 alloc_ofp_port(struct ofproto
*ofproto
, const char *netdev_name
)
2170 port_idx
= simap_get(&ofproto
->ofp_requests
, netdev_name
);
2171 port_idx
= port_idx
? port_idx
: UINT16_MAX
;
2173 if (port_idx
>= ofproto
->max_ports
2174 || ofport_get_usage(ofproto
, u16_to_ofp(port_idx
)) == LLONG_MAX
) {
2175 uint16_t lru_ofport
= 0, end_port_no
= ofproto
->alloc_port_no
;
2176 long long int last_used_at
, lru
= LLONG_MAX
;
2178 /* Search for a free OpenFlow port number. We try not to
2179 * immediately reuse them to prevent problems due to old
2182 * We limit the automatically assigned port numbers to the lower half
2183 * of the port range, to reserve the upper half for assignment by
2186 if (++ofproto
->alloc_port_no
>= MIN(ofproto
->max_ports
, 32768)) {
2187 ofproto
->alloc_port_no
= 1;
2189 last_used_at
= ofport_get_usage(ofproto
,
2190 u16_to_ofp(ofproto
->alloc_port_no
));
2191 if (!last_used_at
) {
2192 port_idx
= ofproto
->alloc_port_no
;
2194 } else if ( last_used_at
< time_msec() - 60*60*1000) {
2195 /* If the port with ofport 'ofproto->alloc_port_no' was deleted
2196 * more than an hour ago, consider it usable. */
2197 ofport_remove_usage(ofproto
,
2198 u16_to_ofp(ofproto
->alloc_port_no
));
2199 port_idx
= ofproto
->alloc_port_no
;
2201 } else if (last_used_at
< lru
) {
2203 lru_ofport
= ofproto
->alloc_port_no
;
2206 if (ofproto
->alloc_port_no
== end_port_no
) {
2208 port_idx
= lru_ofport
;
2215 ofport_set_usage(ofproto
, u16_to_ofp(port_idx
), LLONG_MAX
);
2216 return u16_to_ofp(port_idx
);
2220 dealloc_ofp_port(struct ofproto
*ofproto
, ofp_port_t ofp_port
)
2222 if (ofp_to_u16(ofp_port
) < ofproto
->max_ports
) {
2223 ofport_set_usage(ofproto
, ofp_port
, time_msec());
2227 /* Opens and returns a netdev for 'ofproto_port' in 'ofproto', or a null
2228 * pointer if the netdev cannot be opened. On success, also fills in
2230 static struct netdev
*
2231 ofport_open(struct ofproto
*ofproto
,
2232 struct ofproto_port
*ofproto_port
,
2233 struct ofputil_phy_port
*pp
)
2235 enum netdev_flags flags
;
2236 struct netdev
*netdev
;
2239 error
= netdev_open(ofproto_port
->name
, ofproto_port
->type
, &netdev
);
2241 VLOG_WARN_RL(&rl
, "%s: ignoring port %s (%"PRIu16
") because netdev %s "
2242 "cannot be opened (%s)",
2244 ofproto_port
->name
, ofproto_port
->ofp_port
,
2245 ofproto_port
->name
, ovs_strerror(error
));
2249 if (ofproto_port
->ofp_port
== OFPP_NONE
) {
2250 if (!strcmp(ofproto
->name
, ofproto_port
->name
)) {
2251 ofproto_port
->ofp_port
= OFPP_LOCAL
;
2253 ofproto_port
->ofp_port
= alloc_ofp_port(ofproto
,
2254 ofproto_port
->name
);
2257 pp
->port_no
= ofproto_port
->ofp_port
;
2258 netdev_get_etheraddr(netdev
, pp
->hw_addr
);
2259 ovs_strlcpy(pp
->name
, ofproto_port
->name
, sizeof pp
->name
);
2260 netdev_get_flags(netdev
, &flags
);
2261 pp
->config
= flags
& NETDEV_UP
? 0 : OFPUTIL_PC_PORT_DOWN
;
2262 pp
->state
= netdev_get_carrier(netdev
) ? 0 : OFPUTIL_PS_LINK_DOWN
;
2263 netdev_get_features(netdev
, &pp
->curr
, &pp
->advertised
,
2264 &pp
->supported
, &pp
->peer
);
2265 pp
->curr_speed
= netdev_features_to_bps(pp
->curr
, 0) / 1000;
2266 pp
->max_speed
= netdev_features_to_bps(pp
->supported
, 0) / 1000;
2271 /* Returns true if most fields of 'a' and 'b' are equal. Differences in name,
2272 * port number, and 'config' bits other than OFPUTIL_PC_PORT_DOWN are
2275 ofport_equal(const struct ofputil_phy_port
*a
,
2276 const struct ofputil_phy_port
*b
)
2278 return (eth_addr_equals(a
->hw_addr
, b
->hw_addr
)
2279 && a
->state
== b
->state
2280 && !((a
->config
^ b
->config
) & OFPUTIL_PC_PORT_DOWN
)
2281 && a
->curr
== b
->curr
2282 && a
->advertised
== b
->advertised
2283 && a
->supported
== b
->supported
2284 && a
->peer
== b
->peer
2285 && a
->curr_speed
== b
->curr_speed
2286 && a
->max_speed
== b
->max_speed
);
2289 /* Adds an ofport to 'p' initialized based on the given 'netdev' and 'opp'.
2290 * The caller must ensure that 'p' does not have a conflicting ofport (that is,
2291 * one with the same name or port number). */
2293 ofport_install(struct ofproto
*p
,
2294 struct netdev
*netdev
, const struct ofputil_phy_port
*pp
)
2296 const char *netdev_name
= netdev_get_name(netdev
);
2297 struct ofport
*ofport
;
2300 /* Create ofport. */
2301 ofport
= p
->ofproto_class
->port_alloc();
2306 ofport
->ofproto
= p
;
2307 ofport
->netdev
= netdev
;
2308 ofport
->change_seq
= netdev_get_change_seq(netdev
);
2310 ofport
->ofp_port
= pp
->port_no
;
2311 ofport
->created
= time_msec();
2313 /* Add port to 'p'. */
2314 hmap_insert(&p
->ports
, &ofport
->hmap_node
,
2315 hash_ofp_port(ofport
->ofp_port
));
2316 shash_add(&p
->port_by_name
, netdev_name
, ofport
);
2318 update_mtu(p
, ofport
);
2320 /* Let the ofproto_class initialize its private data. */
2321 error
= p
->ofproto_class
->port_construct(ofport
);
2325 connmgr_send_port_status(p
->connmgr
, NULL
, pp
, OFPPR_ADD
);
2329 VLOG_WARN_RL(&rl
, "%s: could not add port %s (%s)",
2330 p
->name
, netdev_name
, ovs_strerror(error
));
2332 ofport_destroy__(ofport
);
2334 netdev_close(netdev
);
2338 /* Removes 'ofport' from 'p' and destroys it. */
2340 ofport_remove(struct ofport
*ofport
)
2342 connmgr_send_port_status(ofport
->ofproto
->connmgr
, NULL
, &ofport
->pp
,
2344 ofport_destroy(ofport
);
2347 /* If 'ofproto' contains an ofport named 'name', removes it from 'ofproto' and
2350 ofport_remove_with_name(struct ofproto
*ofproto
, const char *name
)
2352 struct ofport
*port
= shash_find_data(&ofproto
->port_by_name
, name
);
2354 ofport_remove(port
);
2358 /* Updates 'port' with new 'pp' description.
2360 * Does not handle a name or port number change. The caller must implement
2361 * such a change as a delete followed by an add. */
2363 ofport_modified(struct ofport
*port
, struct ofputil_phy_port
*pp
)
2365 memcpy(port
->pp
.hw_addr
, pp
->hw_addr
, ETH_ADDR_LEN
);
2366 port
->pp
.config
= ((port
->pp
.config
& ~OFPUTIL_PC_PORT_DOWN
)
2367 | (pp
->config
& OFPUTIL_PC_PORT_DOWN
));
2368 port
->pp
.state
= ((port
->pp
.state
& ~OFPUTIL_PS_LINK_DOWN
)
2369 | (pp
->state
& OFPUTIL_PS_LINK_DOWN
));
2370 port
->pp
.curr
= pp
->curr
;
2371 port
->pp
.advertised
= pp
->advertised
;
2372 port
->pp
.supported
= pp
->supported
;
2373 port
->pp
.peer
= pp
->peer
;
2374 port
->pp
.curr_speed
= pp
->curr_speed
;
2375 port
->pp
.max_speed
= pp
->max_speed
;
2377 connmgr_send_port_status(port
->ofproto
->connmgr
, NULL
,
2378 &port
->pp
, OFPPR_MODIFY
);
2381 /* Update OpenFlow 'state' in 'port' and notify controller. */
2383 ofproto_port_set_state(struct ofport
*port
, enum ofputil_port_state state
)
2385 if (port
->pp
.state
!= state
) {
2386 port
->pp
.state
= state
;
2387 connmgr_send_port_status(port
->ofproto
->connmgr
, NULL
,
2388 &port
->pp
, OFPPR_MODIFY
);
2393 ofproto_port_unregister(struct ofproto
*ofproto
, ofp_port_t ofp_port
)
2395 struct ofport
*port
= ofproto_get_port(ofproto
, ofp_port
);
2397 if (port
->ofproto
->ofproto_class
->set_realdev
) {
2398 port
->ofproto
->ofproto_class
->set_realdev(port
, 0, 0);
2400 if (port
->ofproto
->ofproto_class
->set_stp_port
) {
2401 port
->ofproto
->ofproto_class
->set_stp_port(port
, NULL
);
2403 if (port
->ofproto
->ofproto_class
->set_rstp_port
) {
2404 port
->ofproto
->ofproto_class
->set_rstp_port(port
, NULL
);
2406 if (port
->ofproto
->ofproto_class
->set_cfm
) {
2407 port
->ofproto
->ofproto_class
->set_cfm(port
, NULL
);
2409 if (port
->ofproto
->ofproto_class
->bundle_remove
) {
2410 port
->ofproto
->ofproto_class
->bundle_remove(port
);
2416 ofport_destroy__(struct ofport
*port
)
2418 struct ofproto
*ofproto
= port
->ofproto
;
2419 const char *name
= netdev_get_name(port
->netdev
);
2421 hmap_remove(&ofproto
->ports
, &port
->hmap_node
);
2422 shash_delete(&ofproto
->port_by_name
,
2423 shash_find(&ofproto
->port_by_name
, name
));
2425 netdev_close(port
->netdev
);
2426 ofproto
->ofproto_class
->port_dealloc(port
);
2430 ofport_destroy(struct ofport
*port
)
2433 dealloc_ofp_port(port
->ofproto
, port
->ofp_port
);
2434 port
->ofproto
->ofproto_class
->port_destruct(port
);
2435 ofport_destroy__(port
);
2440 ofproto_get_port(const struct ofproto
*ofproto
, ofp_port_t ofp_port
)
2442 struct ofport
*port
;
2444 HMAP_FOR_EACH_IN_BUCKET (port
, hmap_node
, hash_ofp_port(ofp_port
),
2446 if (port
->ofp_port
== ofp_port
) {
2453 static long long int
2454 ofport_get_usage(const struct ofproto
*ofproto
, ofp_port_t ofp_port
)
2456 struct ofport_usage
*usage
;
2458 HMAP_FOR_EACH_IN_BUCKET (usage
, hmap_node
, hash_ofp_port(ofp_port
),
2459 &ofproto
->ofport_usage
) {
2460 if (usage
->ofp_port
== ofp_port
) {
2461 return usage
->last_used
;
2468 ofport_set_usage(struct ofproto
*ofproto
, ofp_port_t ofp_port
,
2469 long long int last_used
)
2471 struct ofport_usage
*usage
;
2472 HMAP_FOR_EACH_IN_BUCKET (usage
, hmap_node
, hash_ofp_port(ofp_port
),
2473 &ofproto
->ofport_usage
) {
2474 if (usage
->ofp_port
== ofp_port
) {
2475 usage
->last_used
= last_used
;
2479 ovs_assert(last_used
== LLONG_MAX
);
2481 usage
= xmalloc(sizeof *usage
);
2482 usage
->ofp_port
= ofp_port
;
2483 usage
->last_used
= last_used
;
2484 hmap_insert(&ofproto
->ofport_usage
, &usage
->hmap_node
,
2485 hash_ofp_port(ofp_port
));
2489 ofport_remove_usage(struct ofproto
*ofproto
, ofp_port_t ofp_port
)
2491 struct ofport_usage
*usage
;
2492 HMAP_FOR_EACH_IN_BUCKET (usage
, hmap_node
, hash_ofp_port(ofp_port
),
2493 &ofproto
->ofport_usage
) {
2494 if (usage
->ofp_port
== ofp_port
) {
2495 hmap_remove(&ofproto
->ofport_usage
, &usage
->hmap_node
);
2503 ofproto_port_get_stats(const struct ofport
*port
, struct netdev_stats
*stats
)
2505 struct ofproto
*ofproto
= port
->ofproto
;
2508 if (ofproto
->ofproto_class
->port_get_stats
) {
2509 error
= ofproto
->ofproto_class
->port_get_stats(port
, stats
);
2518 update_port(struct ofproto
*ofproto
, const char *name
)
2520 struct ofproto_port ofproto_port
;
2521 struct ofputil_phy_port pp
;
2522 struct netdev
*netdev
;
2523 struct ofport
*port
;
2525 COVERAGE_INC(ofproto_update_port
);
2527 /* Fetch 'name''s location and properties from the datapath. */
2528 netdev
= (!ofproto_port_query_by_name(ofproto
, name
, &ofproto_port
)
2529 ? ofport_open(ofproto
, &ofproto_port
, &pp
)
2533 port
= ofproto_get_port(ofproto
, ofproto_port
.ofp_port
);
2534 if (port
&& !strcmp(netdev_get_name(port
->netdev
), name
)) {
2535 struct netdev
*old_netdev
= port
->netdev
;
2537 /* 'name' hasn't changed location. Any properties changed? */
2538 if (!ofport_equal(&port
->pp
, &pp
)) {
2539 ofport_modified(port
, &pp
);
2542 update_mtu(ofproto
, port
);
2544 /* Install the newly opened netdev in case it has changed.
2545 * Don't close the old netdev yet in case port_modified has to
2546 * remove a retained reference to it.*/
2547 port
->netdev
= netdev
;
2548 port
->change_seq
= netdev_get_change_seq(netdev
);
2550 if (port
->ofproto
->ofproto_class
->port_modified
) {
2551 port
->ofproto
->ofproto_class
->port_modified(port
);
2554 netdev_close(old_netdev
);
2556 /* If 'port' is nonnull then its name differs from 'name' and thus
2557 * we should delete it. If we think there's a port named 'name'
2558 * then its port number must be wrong now so delete it too. */
2560 ofport_remove(port
);
2562 ofport_remove_with_name(ofproto
, name
);
2563 ofport_install(ofproto
, netdev
, &pp
);
2566 /* Any port named 'name' is gone now. */
2567 ofport_remove_with_name(ofproto
, name
);
2569 ofproto_port_destroy(&ofproto_port
);
2573 init_ports(struct ofproto
*p
)
2575 struct ofproto_port_dump dump
;
2576 struct ofproto_port ofproto_port
;
2577 struct shash_node
*node
, *next
;
2579 OFPROTO_PORT_FOR_EACH (&ofproto_port
, &dump
, p
) {
2580 const char *name
= ofproto_port
.name
;
2582 if (shash_find(&p
->port_by_name
, name
)) {
2583 VLOG_WARN_RL(&rl
, "%s: ignoring duplicate device %s in datapath",
2586 struct ofputil_phy_port pp
;
2587 struct netdev
*netdev
;
2589 /* Check if an OpenFlow port number had been requested. */
2590 node
= shash_find(&init_ofp_ports
, name
);
2592 const struct iface_hint
*iface_hint
= node
->data
;
2593 simap_put(&p
->ofp_requests
, name
,
2594 ofp_to_u16(iface_hint
->ofp_port
));
2597 netdev
= ofport_open(p
, &ofproto_port
, &pp
);
2599 ofport_install(p
, netdev
, &pp
);
2600 if (ofp_to_u16(ofproto_port
.ofp_port
) < p
->max_ports
) {
2601 p
->alloc_port_no
= MAX(p
->alloc_port_no
,
2602 ofp_to_u16(ofproto_port
.ofp_port
));
2608 SHASH_FOR_EACH_SAFE(node
, next
, &init_ofp_ports
) {
2609 struct iface_hint
*iface_hint
= node
->data
;
2611 if (!strcmp(iface_hint
->br_name
, p
->name
)) {
2612 free(iface_hint
->br_name
);
2613 free(iface_hint
->br_type
);
2615 shash_delete(&init_ofp_ports
, node
);
2622 /* Find the minimum MTU of all non-datapath devices attached to 'p'.
2623 * Returns ETH_PAYLOAD_MAX or the minimum of the ports. */
2625 find_min_mtu(struct ofproto
*p
)
2627 struct ofport
*ofport
;
2630 HMAP_FOR_EACH (ofport
, hmap_node
, &p
->ports
) {
2631 struct netdev
*netdev
= ofport
->netdev
;
2634 /* Skip any internal ports, since that's what we're trying to
2636 if (!strcmp(netdev_get_type(netdev
), "internal")) {
2640 if (netdev_get_mtu(netdev
, &dev_mtu
)) {
2643 if (!mtu
|| dev_mtu
< mtu
) {
2648 return mtu
? mtu
: ETH_PAYLOAD_MAX
;
2651 /* Update MTU of all datapath devices on 'p' to the minimum of the
2652 * non-datapath ports in event of 'port' added or changed. */
2654 update_mtu(struct ofproto
*p
, struct ofport
*port
)
2656 struct ofport
*ofport
;
2657 struct netdev
*netdev
= port
->netdev
;
2658 int dev_mtu
, old_min
;
2660 if (netdev_get_mtu(netdev
, &dev_mtu
)) {
2664 if (!strcmp(netdev_get_type(port
->netdev
), "internal")) {
2665 if (dev_mtu
> p
->min_mtu
) {
2666 if (!netdev_set_mtu(port
->netdev
, p
->min_mtu
)) {
2667 dev_mtu
= p
->min_mtu
;
2670 port
->mtu
= dev_mtu
;
2674 /* For non-internal port find new min mtu. */
2675 old_min
= p
->min_mtu
;
2676 port
->mtu
= dev_mtu
;
2677 p
->min_mtu
= find_min_mtu(p
);
2678 if (p
->min_mtu
== old_min
) {
2682 HMAP_FOR_EACH (ofport
, hmap_node
, &p
->ports
) {
2683 struct netdev
*netdev
= ofport
->netdev
;
2685 if (!strcmp(netdev_get_type(netdev
), "internal")) {
2686 if (!netdev_set_mtu(netdev
, p
->min_mtu
)) {
2687 ofport
->mtu
= p
->min_mtu
;
2694 ofproto_rule_destroy__(struct rule
*rule
)
2695 OVS_NO_THREAD_SAFETY_ANALYSIS
2697 cls_rule_destroy(CONST_CAST(struct cls_rule
*, &rule
->cr
));
2698 rule_actions_destroy(rule_get_actions(rule
));
2699 ovs_mutex_destroy(&rule
->mutex
);
2700 rule
->ofproto
->ofproto_class
->rule_dealloc(rule
);
2704 rule_destroy_cb(struct rule
*rule
)
2706 rule
->ofproto
->ofproto_class
->rule_destruct(rule
);
2707 ofproto_rule_destroy__(rule
);
2711 ofproto_rule_ref(struct rule
*rule
)
2714 ovs_refcount_ref(&rule
->ref_count
);
2719 ofproto_rule_try_ref(struct rule
*rule
)
2722 return ovs_refcount_try_ref_rcu(&rule
->ref_count
);
2727 /* Decrements 'rule''s ref_count and schedules 'rule' to be destroyed if the
2728 * ref_count reaches 0.
2730 * Use of RCU allows short term use (between RCU quiescent periods) without
2731 * keeping a reference. A reference must be taken if the rule needs to
2732 * stay around accross the RCU quiescent periods. */
2734 ofproto_rule_unref(struct rule
*rule
)
2736 if (rule
&& ovs_refcount_unref_relaxed(&rule
->ref_count
) == 1) {
2737 ovsrcu_postpone(rule_destroy_cb
, rule
);
2742 ofproto_group_ref(struct ofgroup
*group
)
2745 ovs_refcount_ref(&group
->ref_count
);
2750 ofproto_group_unref(struct ofgroup
*group
)
2752 if (group
&& ovs_refcount_unref(&group
->ref_count
) == 1) {
2753 group
->ofproto
->ofproto_class
->group_destruct(group
);
2754 ofputil_bucket_list_destroy(&group
->buckets
);
2755 group
->ofproto
->ofproto_class
->group_dealloc(group
);
2759 static uint32_t get_provider_meter_id(const struct ofproto
*,
2760 uint32_t of_meter_id
);
2762 /* Creates and returns a new 'struct rule_actions', whose actions are a copy
2763 * of from the 'ofpacts_len' bytes of 'ofpacts'. */
2764 const struct rule_actions
*
2765 rule_actions_create(const struct ofpact
*ofpacts
, size_t ofpacts_len
)
2767 struct rule_actions
*actions
;
2769 actions
= xmalloc(sizeof *actions
+ ofpacts_len
);
2770 actions
->ofpacts_len
= ofpacts_len
;
2771 actions
->has_meter
= ofpacts_get_meter(ofpacts
, ofpacts_len
) != 0;
2772 memcpy(actions
->ofpacts
, ofpacts
, ofpacts_len
);
2774 actions
->has_learn_with_delete
= (next_learn_with_delete(actions
, NULL
)
2780 /* Free the actions after the RCU quiescent period is reached. */
2782 rule_actions_destroy(const struct rule_actions
*actions
)
2785 ovsrcu_postpone(free
, CONST_CAST(struct rule_actions
*, actions
));
2789 /* Returns true if 'rule' has an OpenFlow OFPAT_OUTPUT or OFPAT_ENQUEUE action
2790 * that outputs to 'port' (output to OFPP_FLOOD and OFPP_ALL doesn't count). */
2792 ofproto_rule_has_out_port(const struct rule
*rule
, ofp_port_t port
)
2793 OVS_REQUIRES(ofproto_mutex
)
2795 if (port
== OFPP_ANY
) {
2798 const struct rule_actions
*actions
= rule_get_actions(rule
);
2799 return ofpacts_output_to_port(actions
->ofpacts
,
2800 actions
->ofpacts_len
, port
);
2804 /* Returns true if 'rule' has group and equals group_id. */
2806 ofproto_rule_has_out_group(const struct rule
*rule
, uint32_t group_id
)
2807 OVS_REQUIRES(ofproto_mutex
)
2809 if (group_id
== OFPG_ANY
) {
2812 const struct rule_actions
*actions
= rule_get_actions(rule
);
2813 return ofpacts_output_to_group(actions
->ofpacts
,
2814 actions
->ofpacts_len
, group_id
);
2819 rule_execute_destroy(struct rule_execute
*e
)
2821 ofproto_rule_unref(e
->rule
);
2822 list_remove(&e
->list_node
);
2826 /* Executes all "rule_execute" operations queued up in ofproto->rule_executes,
2827 * by passing them to the ofproto provider. */
2829 run_rule_executes(struct ofproto
*ofproto
)
2830 OVS_EXCLUDED(ofproto_mutex
)
2832 struct rule_execute
*e
, *next
;
2833 struct ovs_list executes
;
2835 guarded_list_pop_all(&ofproto
->rule_executes
, &executes
);
2836 LIST_FOR_EACH_SAFE (e
, next
, list_node
, &executes
) {
2839 flow_extract(e
->packet
, &flow
);
2840 flow
.in_port
.ofp_port
= e
->in_port
;
2841 ofproto
->ofproto_class
->rule_execute(e
->rule
, &flow
, e
->packet
);
2843 rule_execute_destroy(e
);
2847 /* Destroys and discards all "rule_execute" operations queued up in
2848 * ofproto->rule_executes. */
2850 destroy_rule_executes(struct ofproto
*ofproto
)
2852 struct rule_execute
*e
, *next
;
2853 struct ovs_list executes
;
2855 guarded_list_pop_all(&ofproto
->rule_executes
, &executes
);
2856 LIST_FOR_EACH_SAFE (e
, next
, list_node
, &executes
) {
2857 dp_packet_delete(e
->packet
);
2858 rule_execute_destroy(e
);
2863 rule_is_readonly(const struct rule
*rule
)
2865 const struct oftable
*table
= &rule
->ofproto
->tables
[rule
->table_id
];
2866 return (table
->flags
& OFTABLE_READONLY
) != 0;
2870 hash_learned_cookie(ovs_be64 cookie_
, uint8_t table_id
)
2872 uint64_t cookie
= (OVS_FORCE
uint64_t) cookie_
;
2873 return hash_3words(cookie
, cookie
>> 32, table_id
);
2877 learned_cookies_update_one__(struct ofproto
*ofproto
,
2878 const struct ofpact_learn
*learn
,
2879 int delta
, struct ovs_list
*dead_cookies
)
2880 OVS_REQUIRES(ofproto_mutex
)
2882 uint32_t hash
= hash_learned_cookie(learn
->cookie
, learn
->table_id
);
2883 struct learned_cookie
*c
;
2885 HMAP_FOR_EACH_WITH_HASH (c
, u
.hmap_node
, hash
, &ofproto
->learned_cookies
) {
2886 if (c
->cookie
== learn
->cookie
&& c
->table_id
== learn
->table_id
) {
2888 ovs_assert(c
->n
>= 0);
2891 hmap_remove(&ofproto
->learned_cookies
, &c
->u
.hmap_node
);
2892 list_push_back(dead_cookies
, &c
->u
.list_node
);
2899 ovs_assert(delta
> 0);
2900 c
= xmalloc(sizeof *c
);
2901 hmap_insert(&ofproto
->learned_cookies
, &c
->u
.hmap_node
, hash
);
2902 c
->cookie
= learn
->cookie
;
2903 c
->table_id
= learn
->table_id
;
2907 static const struct ofpact_learn
*
2908 next_learn_with_delete(const struct rule_actions
*actions
,
2909 const struct ofpact_learn
*start
)
2911 const struct ofpact
*pos
;
2913 for (pos
= start
? ofpact_next(&start
->ofpact
) : actions
->ofpacts
;
2914 pos
< ofpact_end(actions
->ofpacts
, actions
->ofpacts_len
);
2915 pos
= ofpact_next(pos
)) {
2916 if (pos
->type
== OFPACT_LEARN
) {
2917 const struct ofpact_learn
*learn
= ofpact_get_LEARN(pos
);
2918 if (learn
->flags
& NX_LEARN_F_DELETE_LEARNED
) {
2928 learned_cookies_update__(struct ofproto
*ofproto
,
2929 const struct rule_actions
*actions
,
2930 int delta
, struct ovs_list
*dead_cookies
)
2931 OVS_REQUIRES(ofproto_mutex
)
2933 if (actions
->has_learn_with_delete
) {
2934 const struct ofpact_learn
*learn
;
2936 for (learn
= next_learn_with_delete(actions
, NULL
); learn
;
2937 learn
= next_learn_with_delete(actions
, learn
)) {
2938 learned_cookies_update_one__(ofproto
, learn
, delta
, dead_cookies
);
2944 learned_cookies_inc(struct ofproto
*ofproto
,
2945 const struct rule_actions
*actions
)
2946 OVS_REQUIRES(ofproto_mutex
)
2948 learned_cookies_update__(ofproto
, actions
, +1, NULL
);
2952 learned_cookies_dec(struct ofproto
*ofproto
,
2953 const struct rule_actions
*actions
,
2954 struct ovs_list
*dead_cookies
)
2955 OVS_REQUIRES(ofproto_mutex
)
2957 learned_cookies_update__(ofproto
, actions
, -1, dead_cookies
);
2961 learned_cookies_flush(struct ofproto
*ofproto
, struct ovs_list
*dead_cookies
)
2962 OVS_REQUIRES(ofproto_mutex
)
2964 struct learned_cookie
*c
, *next
;
2966 LIST_FOR_EACH_SAFE (c
, next
, u
.list_node
, dead_cookies
) {
2967 struct rule_criteria criteria
;
2968 struct rule_collection rules
;
2971 match_init_catchall(&match
);
2972 rule_criteria_init(&criteria
, c
->table_id
, &match
, 0,
2973 c
->cookie
, OVS_BE64_MAX
, OFPP_ANY
, OFPG_ANY
);
2974 rule_criteria_require_rw(&criteria
, false);
2975 collect_rules_loose(ofproto
, &criteria
, &rules
);
2976 delete_flows__(&rules
, OFPRR_DELETE
, NULL
);
2977 rule_criteria_destroy(&criteria
);
2978 rule_collection_destroy(&rules
);
2980 list_remove(&c
->u
.list_node
);
2986 handle_echo_request(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
2988 ofconn_send_reply(ofconn
, make_echo_reply(oh
));
2993 query_tables(struct ofproto
*ofproto
,
2994 struct ofputil_table_features
**featuresp
,
2995 struct ofputil_table_stats
**statsp
)
2997 struct mf_bitmap rw_fields
= oxm_writable_fields();
2998 struct mf_bitmap match
= oxm_matchable_fields();
2999 struct mf_bitmap mask
= oxm_maskable_fields();
3001 struct ofputil_table_features
*features
;
3002 struct ofputil_table_stats
*stats
;
3005 features
= *featuresp
= xcalloc(ofproto
->n_tables
, sizeof *features
);
3006 for (i
= 0; i
< ofproto
->n_tables
; i
++) {
3007 struct ofputil_table_features
*f
= &features
[i
];
3010 sprintf(f
->name
, "table%d", i
);
3011 f
->metadata_match
= OVS_BE64_MAX
;
3012 f
->metadata_write
= OVS_BE64_MAX
;
3013 atomic_read_relaxed(&ofproto
->tables
[i
].miss_config
, &f
->miss_config
);
3014 f
->max_entries
= 1000000;
3016 bool more_tables
= false;
3017 for (int j
= i
+ 1; j
< ofproto
->n_tables
; j
++) {
3018 if (!(ofproto
->tables
[j
].flags
& OFTABLE_HIDDEN
)) {
3019 bitmap_set1(f
->nonmiss
.next
, j
);
3023 f
->nonmiss
.instructions
= (1u << N_OVS_INSTRUCTIONS
) - 1;
3025 f
->nonmiss
.instructions
&= ~(1u << OVSINST_OFPIT11_GOTO_TABLE
);
3027 f
->nonmiss
.write
.ofpacts
= (UINT64_C(1) << N_OFPACTS
) - 1;
3028 f
->nonmiss
.write
.set_fields
= rw_fields
;
3029 f
->nonmiss
.apply
= f
->nonmiss
.write
;
3030 f
->miss
= f
->nonmiss
;
3034 f
->wildcard
= match
;
3038 stats
= *statsp
= xcalloc(ofproto
->n_tables
, sizeof *stats
);
3039 for (i
= 0; i
< ofproto
->n_tables
; i
++) {
3040 struct ofputil_table_stats
*s
= &stats
[i
];
3041 struct classifier
*cls
= &ofproto
->tables
[i
].cls
;
3044 s
->active_count
= classifier_count(cls
);
3046 s
->active_count
-= connmgr_count_hidden_rules(
3054 ofproto
->ofproto_class
->query_tables(ofproto
, features
, stats
);
3056 for (i
= 0; i
< ofproto
->n_tables
; i
++) {
3057 const struct oftable
*table
= &ofproto
->tables
[i
];
3058 struct ofputil_table_features
*f
= &features
[i
];
3061 ovs_strzcpy(f
->name
, table
->name
, sizeof f
->name
);
3064 if (table
->max_flows
< f
->max_entries
) {
3065 f
->max_entries
= table
->max_flows
;
3071 query_switch_features(struct ofproto
*ofproto
,
3072 bool *arp_match_ip
, uint64_t *ofpacts
)
3074 struct ofputil_table_features
*features
, *f
;
3076 *arp_match_ip
= false;
3079 query_tables(ofproto
, &features
, NULL
);
3080 for (f
= features
; f
< &features
[ofproto
->n_tables
]; f
++) {
3081 *ofpacts
|= f
->nonmiss
.apply
.ofpacts
| f
->miss
.apply
.ofpacts
;
3082 if (bitmap_is_set(f
->match
.bm
, MFF_ARP_SPA
) ||
3083 bitmap_is_set(f
->match
.bm
, MFF_ARP_TPA
)) {
3084 *arp_match_ip
= true;
3090 ovs_assert(*ofpacts
& (UINT64_C(1) << OFPACT_OUTPUT
));
3094 handle_features_request(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
3096 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
3097 struct ofputil_switch_features features
;
3098 struct ofport
*port
;
3102 query_switch_features(ofproto
, &arp_match_ip
, &features
.ofpacts
);
3104 features
.datapath_id
= ofproto
->datapath_id
;
3105 features
.n_buffers
= pktbuf_capacity();
3106 features
.n_tables
= ofproto_get_n_visible_tables(ofproto
);
3107 features
.capabilities
= (OFPUTIL_C_FLOW_STATS
| OFPUTIL_C_TABLE_STATS
|
3108 OFPUTIL_C_PORT_STATS
| OFPUTIL_C_QUEUE_STATS
|
3109 OFPUTIL_C_GROUP_STATS
);
3111 features
.capabilities
|= OFPUTIL_C_ARP_MATCH_IP
;
3113 /* FIXME: Fill in proper features.auxiliary_id for auxiliary connections */
3114 features
.auxiliary_id
= 0;
3115 b
= ofputil_encode_switch_features(&features
, ofconn_get_protocol(ofconn
),
3117 HMAP_FOR_EACH (port
, hmap_node
, &ofproto
->ports
) {
3118 ofputil_put_switch_features_port(&port
->pp
, b
);
3121 ofconn_send_reply(ofconn
, b
);
3126 handle_get_config_request(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
3128 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
3129 struct ofp_switch_config
*osc
;
3130 enum ofp_config_flags flags
;
3134 buf
= ofpraw_alloc_reply(OFPRAW_OFPT_GET_CONFIG_REPLY
, oh
, 0);
3135 osc
= ofpbuf_put_uninit(buf
, sizeof *osc
);
3136 flags
= ofproto
->frag_handling
;
3137 /* OFPC_INVALID_TTL_TO_CONTROLLER is deprecated in OF 1.3 */
3138 if (oh
->version
< OFP13_VERSION
3139 && ofconn_get_invalid_ttl_to_controller(ofconn
)) {
3140 flags
|= OFPC_INVALID_TTL_TO_CONTROLLER
;
3142 osc
->flags
= htons(flags
);
3143 osc
->miss_send_len
= htons(ofconn_get_miss_send_len(ofconn
));
3144 ofconn_send_reply(ofconn
, buf
);
3150 handle_set_config(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
3152 const struct ofp_switch_config
*osc
= ofpmsg_body(oh
);
3153 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
3154 uint16_t flags
= ntohs(osc
->flags
);
3156 if (ofconn_get_type(ofconn
) != OFCONN_PRIMARY
3157 || ofconn_get_role(ofconn
) != OFPCR12_ROLE_SLAVE
) {
3158 enum ofp_config_flags cur
= ofproto
->frag_handling
;
3159 enum ofp_config_flags next
= flags
& OFPC_FRAG_MASK
;
3161 ovs_assert((cur
& OFPC_FRAG_MASK
) == cur
);
3163 if (ofproto
->ofproto_class
->set_frag_handling(ofproto
, next
)) {
3164 ofproto
->frag_handling
= next
;
3166 VLOG_WARN_RL(&rl
, "%s: unsupported fragment handling mode %s",
3168 ofputil_frag_handling_to_string(next
));
3172 /* OFPC_INVALID_TTL_TO_CONTROLLER is deprecated in OF 1.3 */
3173 ofconn_set_invalid_ttl_to_controller(ofconn
,
3174 (oh
->version
< OFP13_VERSION
3175 && flags
& OFPC_INVALID_TTL_TO_CONTROLLER
));
3177 ofconn_set_miss_send_len(ofconn
, ntohs(osc
->miss_send_len
));
3182 /* Checks whether 'ofconn' is a slave controller. If so, returns an OpenFlow
3183 * error message code for the caller to propagate upward. Otherwise, returns
3186 * The log message mentions 'msg_type'. */
3188 reject_slave_controller(struct ofconn
*ofconn
)
3190 if (ofconn_get_type(ofconn
) == OFCONN_PRIMARY
3191 && ofconn_get_role(ofconn
) == OFPCR12_ROLE_SLAVE
) {
3192 return OFPERR_OFPBRC_IS_SLAVE
;
3198 /* Checks that the 'ofpacts_len' bytes of action in 'ofpacts' are appropriate
3201 * - If they use a meter, then 'ofproto' has that meter configured.
3203 * - If they use any groups, then 'ofproto' has that group configured.
3205 * Returns 0 if successful, otherwise an OpenFlow error. */
3207 ofproto_check_ofpacts(struct ofproto
*ofproto
,
3208 const struct ofpact ofpacts
[], size_t ofpacts_len
)
3210 const struct ofpact
*a
;
3213 mid
= ofpacts_get_meter(ofpacts
, ofpacts_len
);
3214 if (mid
&& get_provider_meter_id(ofproto
, mid
) == UINT32_MAX
) {
3215 return OFPERR_OFPMMFC_INVALID_METER
;
3218 OFPACT_FOR_EACH (a
, ofpacts
, ofpacts_len
) {
3219 if (a
->type
== OFPACT_GROUP
3220 && !ofproto_group_exists(ofproto
, ofpact_get_GROUP(a
)->group_id
)) {
3221 return OFPERR_OFPBAC_BAD_OUT_GROUP
;
3229 handle_packet_out(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
3231 struct ofproto
*p
= ofconn_get_ofproto(ofconn
);
3232 struct ofputil_packet_out po
;
3233 struct dp_packet
*payload
;
3234 uint64_t ofpacts_stub
[1024 / 8];
3235 struct ofpbuf ofpacts
;
3239 COVERAGE_INC(ofproto_packet_out
);
3241 error
= reject_slave_controller(ofconn
);
3246 /* Decode message. */
3247 ofpbuf_use_stub(&ofpacts
, ofpacts_stub
, sizeof ofpacts_stub
);
3248 error
= ofputil_decode_packet_out(&po
, oh
, &ofpacts
);
3250 goto exit_free_ofpacts
;
3252 if (ofp_to_u16(po
.in_port
) >= p
->max_ports
3253 && ofp_to_u16(po
.in_port
) < ofp_to_u16(OFPP_MAX
)) {
3254 error
= OFPERR_OFPBRC_BAD_PORT
;
3255 goto exit_free_ofpacts
;
3259 if (po
.buffer_id
!= UINT32_MAX
) {
3260 error
= ofconn_pktbuf_retrieve(ofconn
, po
.buffer_id
, &payload
, NULL
);
3261 if (error
|| !payload
) {
3262 goto exit_free_ofpacts
;
3265 /* Ensure that the L3 header is 32-bit aligned. */
3266 payload
= dp_packet_clone_data_with_headroom(po
.packet
, po
.packet_len
, 2);
3269 /* Verify actions against packet, then send packet if successful. */
3270 flow_extract(payload
, &flow
);
3271 flow
.in_port
.ofp_port
= po
.in_port
;
3272 error
= ofproto_check_ofpacts(p
, po
.ofpacts
, po
.ofpacts_len
);
3274 error
= p
->ofproto_class
->packet_out(p
, payload
, &flow
,
3275 po
.ofpacts
, po
.ofpacts_len
);
3277 dp_packet_delete(payload
);
3280 ofpbuf_uninit(&ofpacts
);
3286 update_port_config(struct ofconn
*ofconn
, struct ofport
*port
,
3287 enum ofputil_port_config config
,
3288 enum ofputil_port_config mask
)
3290 enum ofputil_port_config toggle
= (config
^ port
->pp
.config
) & mask
;
3292 if (toggle
& OFPUTIL_PC_PORT_DOWN
3293 && (config
& OFPUTIL_PC_PORT_DOWN
3294 ? netdev_turn_flags_off(port
->netdev
, NETDEV_UP
, NULL
)
3295 : netdev_turn_flags_on(port
->netdev
, NETDEV_UP
, NULL
))) {
3296 /* We tried to bring the port up or down, but it failed, so don't
3297 * update the "down" bit. */
3298 toggle
&= ~OFPUTIL_PC_PORT_DOWN
;
3302 enum ofputil_port_config old_config
= port
->pp
.config
;
3303 port
->pp
.config
^= toggle
;
3304 port
->ofproto
->ofproto_class
->port_reconfigured(port
, old_config
);
3305 connmgr_send_port_status(port
->ofproto
->connmgr
, ofconn
, &port
->pp
,
3311 handle_port_mod(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
3313 struct ofproto
*p
= ofconn_get_ofproto(ofconn
);
3314 struct ofputil_port_mod pm
;
3315 struct ofport
*port
;
3318 error
= reject_slave_controller(ofconn
);
3323 error
= ofputil_decode_port_mod(oh
, &pm
, false);
3328 port
= ofproto_get_port(p
, pm
.port_no
);
3330 return OFPERR_OFPPMFC_BAD_PORT
;
3331 } else if (!eth_addr_equals(port
->pp
.hw_addr
, pm
.hw_addr
)) {
3332 return OFPERR_OFPPMFC_BAD_HW_ADDR
;
3334 update_port_config(ofconn
, port
, pm
.config
, pm
.mask
);
3336 netdev_set_advertisements(port
->netdev
, pm
.advertise
);
3343 handle_desc_stats_request(struct ofconn
*ofconn
,
3344 const struct ofp_header
*request
)
3346 static const char *default_mfr_desc
= "Nicira, Inc.";
3347 static const char *default_hw_desc
= "Open vSwitch";
3348 static const char *default_sw_desc
= VERSION
;
3349 static const char *default_serial_desc
= "None";
3350 static const char *default_dp_desc
= "None";
3352 struct ofproto
*p
= ofconn_get_ofproto(ofconn
);
3353 struct ofp_desc_stats
*ods
;
3356 msg
= ofpraw_alloc_stats_reply(request
, 0);
3357 ods
= ofpbuf_put_zeros(msg
, sizeof *ods
);
3358 ovs_strlcpy(ods
->mfr_desc
, p
->mfr_desc
? p
->mfr_desc
: default_mfr_desc
,
3359 sizeof ods
->mfr_desc
);
3360 ovs_strlcpy(ods
->hw_desc
, p
->hw_desc
? p
->hw_desc
: default_hw_desc
,
3361 sizeof ods
->hw_desc
);
3362 ovs_strlcpy(ods
->sw_desc
, p
->sw_desc
? p
->sw_desc
: default_sw_desc
,
3363 sizeof ods
->sw_desc
);
3364 ovs_strlcpy(ods
->serial_num
,
3365 p
->serial_desc
? p
->serial_desc
: default_serial_desc
,
3366 sizeof ods
->serial_num
);
3367 ovs_strlcpy(ods
->dp_desc
, p
->dp_desc
? p
->dp_desc
: default_dp_desc
,
3368 sizeof ods
->dp_desc
);
3369 ofconn_send_reply(ofconn
, msg
);
3375 handle_table_stats_request(struct ofconn
*ofconn
,
3376 const struct ofp_header
*request
)
3378 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
3379 struct ofputil_table_features
*features
;
3380 struct ofputil_table_stats
*stats
;
3381 struct ofpbuf
*reply
;
3384 query_tables(ofproto
, &features
, &stats
);
3386 reply
= ofputil_encode_table_stats_reply(request
);
3387 for (i
= 0; i
< ofproto
->n_tables
; i
++) {
3388 if (!(ofproto
->tables
[i
].flags
& OFTABLE_HIDDEN
)) {
3389 ofputil_append_table_stats_reply(reply
, &stats
[i
], &features
[i
]);
3392 ofconn_send_reply(ofconn
, reply
);
3401 handle_table_features_request(struct ofconn
*ofconn
,
3402 const struct ofp_header
*request
)
3404 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
3405 struct ofputil_table_features
*features
;
3406 struct ovs_list replies
;
3410 ofpbuf_use_const(&msg
, request
, ntohs(request
->length
));
3411 ofpraw_pull_assert(&msg
);
3412 if (msg
.size
|| ofpmp_more(request
)) {
3413 return OFPERR_OFPTFFC_EPERM
;
3416 query_tables(ofproto
, &features
, NULL
);
3418 ofpmp_init(&replies
, request
);
3419 for (i
= 0; i
< ofproto
->n_tables
; i
++) {
3420 if (!(ofproto
->tables
[i
].flags
& OFTABLE_HIDDEN
)) {
3421 ofputil_append_table_features_reply(&features
[i
], &replies
);
3424 ofconn_send_replies(ofconn
, &replies
);
3432 append_port_stat(struct ofport
*port
, struct ovs_list
*replies
)
3434 struct ofputil_port_stats ops
= { .port_no
= port
->pp
.port_no
};
3436 calc_duration(port
->created
, time_msec(),
3437 &ops
.duration_sec
, &ops
.duration_nsec
);
3439 /* Intentionally ignore return value, since errors will set
3440 * 'stats' to all-1s, which is correct for OpenFlow, and
3441 * netdev_get_stats() will log errors. */
3442 ofproto_port_get_stats(port
, &ops
.stats
);
3444 ofputil_append_port_stat(replies
, &ops
);
3448 handle_port_request(struct ofconn
*ofconn
,
3449 const struct ofp_header
*request
, ofp_port_t port_no
,
3450 void (*cb
)(struct ofport
*, struct ovs_list
*replies
))
3452 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
3453 struct ofport
*port
;
3454 struct ovs_list replies
;
3456 ofpmp_init(&replies
, request
);
3457 if (port_no
!= OFPP_ANY
) {
3458 port
= ofproto_get_port(ofproto
, port_no
);
3463 HMAP_FOR_EACH (port
, hmap_node
, &ofproto
->ports
) {
3468 ofconn_send_replies(ofconn
, &replies
);
3472 handle_port_stats_request(struct ofconn
*ofconn
,
3473 const struct ofp_header
*request
)
3478 error
= ofputil_decode_port_stats_request(request
, &port_no
);
3480 handle_port_request(ofconn
, request
, port_no
, append_port_stat
);
3486 append_port_desc(struct ofport
*port
, struct ovs_list
*replies
)
3488 ofputil_append_port_desc_stats_reply(&port
->pp
, replies
);
3492 handle_port_desc_stats_request(struct ofconn
*ofconn
,
3493 const struct ofp_header
*request
)
3498 error
= ofputil_decode_port_desc_stats_request(request
, &port_no
);
3500 handle_port_request(ofconn
, request
, port_no
, append_port_desc
);
3506 hash_cookie(ovs_be64 cookie
)
3508 return hash_uint64((OVS_FORCE
uint64_t)cookie
);
3512 cookies_insert(struct ofproto
*ofproto
, struct rule
*rule
)
3513 OVS_REQUIRES(ofproto_mutex
)
3515 hindex_insert(&ofproto
->cookies
, &rule
->cookie_node
,
3516 hash_cookie(rule
->flow_cookie
));
3520 cookies_remove(struct ofproto
*ofproto
, struct rule
*rule
)
3521 OVS_REQUIRES(ofproto_mutex
)
3523 hindex_remove(&ofproto
->cookies
, &rule
->cookie_node
);
3527 calc_duration(long long int start
, long long int now
,
3528 uint32_t *sec
, uint32_t *nsec
)
3530 long long int msecs
= now
- start
;
3531 *sec
= msecs
/ 1000;
3532 *nsec
= (msecs
% 1000) * (1000 * 1000);
3535 /* Checks whether 'table_id' is 0xff or a valid table ID in 'ofproto'. Returns
3536 * true if 'table_id' is OK, false otherwise. */
3538 check_table_id(const struct ofproto
*ofproto
, uint8_t table_id
)
3540 return table_id
== OFPTT_ALL
|| table_id
< ofproto
->n_tables
;
3543 static struct oftable
*
3544 next_visible_table(const struct ofproto
*ofproto
, uint8_t table_id
)
3546 struct oftable
*table
;
3548 for (table
= &ofproto
->tables
[table_id
];
3549 table
< &ofproto
->tables
[ofproto
->n_tables
];
3551 if (!(table
->flags
& OFTABLE_HIDDEN
)) {
3559 static struct oftable
*
3560 first_matching_table(const struct ofproto
*ofproto
, uint8_t table_id
)
3562 if (table_id
== 0xff) {
3563 return next_visible_table(ofproto
, 0);
3564 } else if (table_id
< ofproto
->n_tables
) {
3565 return &ofproto
->tables
[table_id
];
3571 static struct oftable
*
3572 next_matching_table(const struct ofproto
*ofproto
,
3573 const struct oftable
*table
, uint8_t table_id
)
3575 return (table_id
== 0xff
3576 ? next_visible_table(ofproto
, (table
- ofproto
->tables
) + 1)
3580 /* Assigns TABLE to each oftable, in turn, that matches TABLE_ID in OFPROTO:
3582 * - If TABLE_ID is 0xff, this iterates over every classifier table in
3583 * OFPROTO, skipping tables marked OFTABLE_HIDDEN.
3585 * - If TABLE_ID is the number of a table in OFPROTO, then the loop iterates
3586 * only once, for that table. (This can be used to access tables marked
3589 * - Otherwise, TABLE_ID isn't valid for OFPROTO, so the loop won't be
3590 * entered at all. (Perhaps you should have validated TABLE_ID with
3591 * check_table_id().)
3593 * All parameters are evaluated multiple times.
3595 #define FOR_EACH_MATCHING_TABLE(TABLE, TABLE_ID, OFPROTO) \
3596 for ((TABLE) = first_matching_table(OFPROTO, TABLE_ID); \
3598 (TABLE) = next_matching_table(OFPROTO, TABLE, TABLE_ID))
3600 /* Initializes 'criteria' in a straightforward way based on the other
3603 * By default, the criteria include flows that are read-only, on the assumption
3604 * that the collected flows won't be modified. Call rule_criteria_require_rw()
3605 * if flows will be modified.
3607 * For "loose" matching, the 'priority' parameter is unimportant and may be
3610 rule_criteria_init(struct rule_criteria
*criteria
, uint8_t table_id
,
3611 const struct match
*match
, int priority
,
3612 ovs_be64 cookie
, ovs_be64 cookie_mask
,
3613 ofp_port_t out_port
, uint32_t out_group
)
3615 criteria
->table_id
= table_id
;
3616 cls_rule_init(&criteria
->cr
, match
, priority
);
3617 criteria
->cookie
= cookie
;
3618 criteria
->cookie_mask
= cookie_mask
;
3619 criteria
->out_port
= out_port
;
3620 criteria
->out_group
= out_group
;
3622 /* We ordinarily want to skip hidden rules, but there has to be a way for
3623 * code internal to OVS to modify and delete them, so if the criteria
3624 * specify a priority that can only be for a hidden flow, then allow hidden
3625 * rules to be selected. (This doesn't allow OpenFlow clients to meddle
3626 * with hidden flows because OpenFlow uses only a 16-bit field to specify
3628 criteria
->include_hidden
= priority
> UINT16_MAX
;
3630 /* We assume that the criteria are being used to collect flows for reading
3631 * but not modification. Thus, we should collect read-only flows. */
3632 criteria
->include_readonly
= true;
3635 /* By default, criteria initialized by rule_criteria_init() will match flows
3636 * that are read-only, on the assumption that the collected flows won't be
3637 * modified. Call this function to match only flows that are be modifiable.
3639 * Specify 'can_write_readonly' as false in ordinary circumstances, true if the
3640 * caller has special privileges that allow it to modify even "read-only"
3643 rule_criteria_require_rw(struct rule_criteria
*criteria
,
3644 bool can_write_readonly
)
3646 criteria
->include_readonly
= can_write_readonly
;
3650 rule_criteria_destroy(struct rule_criteria
*criteria
)
3652 cls_rule_destroy(&criteria
->cr
);
3656 rule_collection_init(struct rule_collection
*rules
)
3658 rules
->rules
= rules
->stub
;
3660 rules
->capacity
= ARRAY_SIZE(rules
->stub
);
3664 rule_collection_add(struct rule_collection
*rules
, struct rule
*rule
)
3666 if (rules
->n
>= rules
->capacity
) {
3667 size_t old_size
, new_size
;
3669 old_size
= rules
->capacity
* sizeof *rules
->rules
;
3670 rules
->capacity
*= 2;
3671 new_size
= rules
->capacity
* sizeof *rules
->rules
;
3673 if (rules
->rules
== rules
->stub
) {
3674 rules
->rules
= xmalloc(new_size
);
3675 memcpy(rules
->rules
, rules
->stub
, old_size
);
3677 rules
->rules
= xrealloc(rules
->rules
, new_size
);
3681 rules
->rules
[rules
->n
++] = rule
;
3685 rule_collection_ref(struct rule_collection
*rules
)
3686 OVS_REQUIRES(ofproto_mutex
)
3690 for (i
= 0; i
< rules
->n
; i
++) {
3691 ofproto_rule_ref(rules
->rules
[i
]);
3696 rule_collection_unref(struct rule_collection
*rules
)
3700 for (i
= 0; i
< rules
->n
; i
++) {
3701 ofproto_rule_unref(rules
->rules
[i
]);
3706 rule_collection_destroy(struct rule_collection
*rules
)
3708 if (rules
->rules
!= rules
->stub
) {
3712 /* Make repeated destruction harmless. */
3713 rule_collection_init(rules
);
3716 /* Checks whether 'rule' matches 'c' and, if so, adds it to 'rules'. This
3717 * function verifies most of the criteria in 'c' itself, but the caller must
3718 * check 'c->cr' itself.
3720 * Increments '*n_readonly' if 'rule' wasn't added because it's read-only (and
3721 * 'c' only includes modifiable rules). */
3723 collect_rule(struct rule
*rule
, const struct rule_criteria
*c
,
3724 struct rule_collection
*rules
, size_t *n_readonly
)
3725 OVS_REQUIRES(ofproto_mutex
)
3727 if ((c
->table_id
== rule
->table_id
|| c
->table_id
== 0xff)
3728 && ofproto_rule_has_out_port(rule
, c
->out_port
)
3729 && ofproto_rule_has_out_group(rule
, c
->out_group
)
3730 && !((rule
->flow_cookie
^ c
->cookie
) & c
->cookie_mask
)
3731 && (!rule_is_hidden(rule
) || c
->include_hidden
)) {
3732 /* Rule matches all the criteria... */
3733 if (!rule_is_readonly(rule
) || c
->include_readonly
) {
3735 rule_collection_add(rules
, rule
);
3737 /* ...except it's read-only. */
3743 /* Searches 'ofproto' for rules that match the criteria in 'criteria'. Matches
3744 * on classifiers rules are done in the "loose" way required for OpenFlow
3745 * OFPFC_MODIFY and OFPFC_DELETE requests. Puts the selected rules on list
3748 * Returns 0 on success, otherwise an OpenFlow error code. */
3750 collect_rules_loose(struct ofproto
*ofproto
,
3751 const struct rule_criteria
*criteria
,
3752 struct rule_collection
*rules
)
3753 OVS_REQUIRES(ofproto_mutex
)
3755 struct oftable
*table
;
3756 enum ofperr error
= 0;
3757 size_t n_readonly
= 0;
3759 rule_collection_init(rules
);
3761 if (!check_table_id(ofproto
, criteria
->table_id
)) {
3762 error
= OFPERR_OFPBRC_BAD_TABLE_ID
;
3766 if (criteria
->cookie_mask
== OVS_BE64_MAX
) {
3769 HINDEX_FOR_EACH_WITH_HASH (rule
, cookie_node
,
3770 hash_cookie(criteria
->cookie
),
3771 &ofproto
->cookies
) {
3772 if (cls_rule_is_loose_match(&rule
->cr
, &criteria
->cr
.match
)) {
3773 collect_rule(rule
, criteria
, rules
, &n_readonly
);
3777 FOR_EACH_MATCHING_TABLE (table
, criteria
->table_id
, ofproto
) {
3780 CLS_FOR_EACH_TARGET (rule
, cr
, &table
->cls
, &criteria
->cr
) {
3781 collect_rule(rule
, criteria
, rules
, &n_readonly
);
3787 if (!error
&& !rules
->n
&& n_readonly
) {
3788 /* We didn't find any rules to modify. We did find some read-only
3789 * rules that we're not allowed to modify, so report that. */
3790 error
= OFPERR_OFPBRC_EPERM
;
3793 rule_collection_destroy(rules
);
3798 /* Searches 'ofproto' for rules that match the criteria in 'criteria'. Matches
3799 * on classifiers rules are done in the "strict" way required for OpenFlow
3800 * OFPFC_MODIFY_STRICT and OFPFC_DELETE_STRICT requests. Puts the selected
3801 * rules on list 'rules'.
3803 * Returns 0 on success, otherwise an OpenFlow error code. */
3805 collect_rules_strict(struct ofproto
*ofproto
,
3806 const struct rule_criteria
*criteria
,
3807 struct rule_collection
*rules
)
3808 OVS_REQUIRES(ofproto_mutex
)
3810 struct oftable
*table
;
3811 size_t n_readonly
= 0;
3814 rule_collection_init(rules
);
3816 if (!check_table_id(ofproto
, criteria
->table_id
)) {
3817 error
= OFPERR_OFPBRC_BAD_TABLE_ID
;
3821 if (criteria
->cookie_mask
== OVS_BE64_MAX
) {
3824 HINDEX_FOR_EACH_WITH_HASH (rule
, cookie_node
,
3825 hash_cookie(criteria
->cookie
),
3826 &ofproto
->cookies
) {
3827 if (cls_rule_equal(&rule
->cr
, &criteria
->cr
)) {
3828 collect_rule(rule
, criteria
, rules
, &n_readonly
);
3832 FOR_EACH_MATCHING_TABLE (table
, criteria
->table_id
, ofproto
) {
3835 rule
= rule_from_cls_rule(classifier_find_rule_exactly(
3836 &table
->cls
, &criteria
->cr
));
3838 collect_rule(rule
, criteria
, rules
, &n_readonly
);
3844 if (!error
&& !rules
->n
&& n_readonly
) {
3845 /* We didn't find any rules to modify. We did find some read-only
3846 * rules that we're not allowed to modify, so report that. */
3847 error
= OFPERR_OFPBRC_EPERM
;
3850 rule_collection_destroy(rules
);
3855 /* Returns 'age_ms' (a duration in milliseconds), converted to seconds and
3856 * forced into the range of a uint16_t. */
3858 age_secs(long long int age_ms
)
3860 return (age_ms
< 0 ? 0
3861 : age_ms
>= UINT16_MAX
* 1000 ? UINT16_MAX
3862 : (unsigned int) age_ms
/ 1000);
3866 handle_flow_stats_request(struct ofconn
*ofconn
,
3867 const struct ofp_header
*request
)
3868 OVS_EXCLUDED(ofproto_mutex
)
3870 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
3871 struct ofputil_flow_stats_request fsr
;
3872 struct rule_criteria criteria
;
3873 struct rule_collection rules
;
3874 struct ovs_list replies
;
3878 error
= ofputil_decode_flow_stats_request(&fsr
, request
);
3883 rule_criteria_init(&criteria
, fsr
.table_id
, &fsr
.match
, 0, fsr
.cookie
,
3884 fsr
.cookie_mask
, fsr
.out_port
, fsr
.out_group
);
3886 ovs_mutex_lock(&ofproto_mutex
);
3887 error
= collect_rules_loose(ofproto
, &criteria
, &rules
);
3888 rule_criteria_destroy(&criteria
);
3890 rule_collection_ref(&rules
);
3892 ovs_mutex_unlock(&ofproto_mutex
);
3898 ofpmp_init(&replies
, request
);
3899 for (i
= 0; i
< rules
.n
; i
++) {
3900 struct rule
*rule
= rules
.rules
[i
];
3901 long long int now
= time_msec();
3902 struct ofputil_flow_stats fs
;
3903 long long int created
, used
, modified
;
3904 const struct rule_actions
*actions
;
3905 enum ofputil_flow_mod_flags flags
;
3907 ovs_mutex_lock(&rule
->mutex
);
3908 fs
.cookie
= rule
->flow_cookie
;
3909 fs
.idle_timeout
= rule
->idle_timeout
;
3910 fs
.hard_timeout
= rule
->hard_timeout
;
3911 fs
.importance
= rule
->importance
;
3912 created
= rule
->created
;
3913 modified
= rule
->modified
;
3914 actions
= rule_get_actions(rule
);
3915 flags
= rule
->flags
;
3916 ovs_mutex_unlock(&rule
->mutex
);
3918 ofproto
->ofproto_class
->rule_get_stats(rule
, &fs
.packet_count
,
3919 &fs
.byte_count
, &used
);
3921 minimatch_expand(&rule
->cr
.match
, &fs
.match
);
3922 fs
.table_id
= rule
->table_id
;
3923 calc_duration(created
, now
, &fs
.duration_sec
, &fs
.duration_nsec
);
3924 fs
.priority
= rule
->cr
.priority
;
3925 fs
.idle_age
= age_secs(now
- used
);
3926 fs
.hard_age
= age_secs(now
- modified
);
3927 fs
.ofpacts
= actions
->ofpacts
;
3928 fs
.ofpacts_len
= actions
->ofpacts_len
;
3931 ofputil_append_flow_stats_reply(&fs
, &replies
);
3934 rule_collection_unref(&rules
);
3935 rule_collection_destroy(&rules
);
3937 ofconn_send_replies(ofconn
, &replies
);
3943 flow_stats_ds(struct rule
*rule
, struct ds
*results
)
3945 uint64_t packet_count
, byte_count
;
3946 const struct rule_actions
*actions
;
3947 long long int created
, used
;
3949 rule
->ofproto
->ofproto_class
->rule_get_stats(rule
, &packet_count
,
3950 &byte_count
, &used
);
3952 ovs_mutex_lock(&rule
->mutex
);
3953 actions
= rule_get_actions(rule
);
3954 created
= rule
->created
;
3955 ovs_mutex_unlock(&rule
->mutex
);
3957 if (rule
->table_id
!= 0) {
3958 ds_put_format(results
, "table_id=%"PRIu8
", ", rule
->table_id
);
3960 ds_put_format(results
, "duration=%llds, ", (time_msec() - created
) / 1000);
3961 ds_put_format(results
, "n_packets=%"PRIu64
", ", packet_count
);
3962 ds_put_format(results
, "n_bytes=%"PRIu64
", ", byte_count
);
3963 cls_rule_format(&rule
->cr
, results
);
3964 ds_put_char(results
, ',');
3966 ds_put_cstr(results
, "actions=");
3967 ofpacts_format(actions
->ofpacts
, actions
->ofpacts_len
, results
);
3969 ds_put_cstr(results
, "\n");
3972 /* Adds a pretty-printed description of all flows to 'results', including
3973 * hidden flows (e.g., set up by in-band control). */
3975 ofproto_get_all_flows(struct ofproto
*p
, struct ds
*results
)
3977 struct oftable
*table
;
3979 OFPROTO_FOR_EACH_TABLE (table
, p
) {
3982 CLS_FOR_EACH (rule
, cr
, &table
->cls
) {
3983 flow_stats_ds(rule
, results
);
3988 /* Obtains the NetFlow engine type and engine ID for 'ofproto' into
3989 * '*engine_type' and '*engine_id', respectively. */
3991 ofproto_get_netflow_ids(const struct ofproto
*ofproto
,
3992 uint8_t *engine_type
, uint8_t *engine_id
)
3994 ofproto
->ofproto_class
->get_netflow_ids(ofproto
, engine_type
, engine_id
);
3997 /* Checks the status change of CFM on 'ofport'.
3999 * Returns true if 'ofproto_class' does not support 'cfm_status_changed'. */
4001 ofproto_port_cfm_status_changed(struct ofproto
*ofproto
, ofp_port_t ofp_port
)
4003 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
4004 return (ofport
&& ofproto
->ofproto_class
->cfm_status_changed
4005 ? ofproto
->ofproto_class
->cfm_status_changed(ofport
)
4009 /* Checks the status of CFM configured on 'ofp_port' within 'ofproto'.
4010 * Returns 0 if the port's CFM status was successfully stored into
4011 * '*status'. Returns positive errno if the port did not have CFM
4014 * The caller must provide and own '*status', and must free 'status->rmps'.
4015 * '*status' is indeterminate if the return value is non-zero. */
4017 ofproto_port_get_cfm_status(const struct ofproto
*ofproto
, ofp_port_t ofp_port
,
4018 struct cfm_status
*status
)
4020 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
4021 return (ofport
&& ofproto
->ofproto_class
->get_cfm_status
4022 ? ofproto
->ofproto_class
->get_cfm_status(ofport
, status
)
4027 handle_aggregate_stats_request(struct ofconn
*ofconn
,
4028 const struct ofp_header
*oh
)
4029 OVS_EXCLUDED(ofproto_mutex
)
4031 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
4032 struct ofputil_flow_stats_request request
;
4033 struct ofputil_aggregate_stats stats
;
4034 bool unknown_packets
, unknown_bytes
;
4035 struct rule_criteria criteria
;
4036 struct rule_collection rules
;
4037 struct ofpbuf
*reply
;
4041 error
= ofputil_decode_flow_stats_request(&request
, oh
);
4046 rule_criteria_init(&criteria
, request
.table_id
, &request
.match
, 0,
4047 request
.cookie
, request
.cookie_mask
,
4048 request
.out_port
, request
.out_group
);
4050 ovs_mutex_lock(&ofproto_mutex
);
4051 error
= collect_rules_loose(ofproto
, &criteria
, &rules
);
4052 rule_criteria_destroy(&criteria
);
4054 rule_collection_ref(&rules
);
4056 ovs_mutex_unlock(&ofproto_mutex
);
4062 memset(&stats
, 0, sizeof stats
);
4063 unknown_packets
= unknown_bytes
= false;
4064 for (i
= 0; i
< rules
.n
; i
++) {
4065 struct rule
*rule
= rules
.rules
[i
];
4066 uint64_t packet_count
;
4067 uint64_t byte_count
;
4070 ofproto
->ofproto_class
->rule_get_stats(rule
, &packet_count
,
4071 &byte_count
, &used
);
4073 if (packet_count
== UINT64_MAX
) {
4074 unknown_packets
= true;
4076 stats
.packet_count
+= packet_count
;
4079 if (byte_count
== UINT64_MAX
) {
4080 unknown_bytes
= true;
4082 stats
.byte_count
+= byte_count
;
4087 if (unknown_packets
) {
4088 stats
.packet_count
= UINT64_MAX
;
4090 if (unknown_bytes
) {
4091 stats
.byte_count
= UINT64_MAX
;
4094 rule_collection_unref(&rules
);
4095 rule_collection_destroy(&rules
);
4097 reply
= ofputil_encode_aggregate_stats_reply(&stats
, oh
);
4098 ofconn_send_reply(ofconn
, reply
);
4103 struct queue_stats_cbdata
{
4104 struct ofport
*ofport
;
4105 struct ovs_list replies
;
4110 put_queue_stats(struct queue_stats_cbdata
*cbdata
, uint32_t queue_id
,
4111 const struct netdev_queue_stats
*stats
)
4113 struct ofputil_queue_stats oqs
;
4115 oqs
.port_no
= cbdata
->ofport
->pp
.port_no
;
4116 oqs
.queue_id
= queue_id
;
4117 oqs
.tx_bytes
= stats
->tx_bytes
;
4118 oqs
.tx_packets
= stats
->tx_packets
;
4119 oqs
.tx_errors
= stats
->tx_errors
;
4120 if (stats
->created
!= LLONG_MIN
) {
4121 calc_duration(stats
->created
, cbdata
->now
,
4122 &oqs
.duration_sec
, &oqs
.duration_nsec
);
4124 oqs
.duration_sec
= oqs
.duration_nsec
= UINT32_MAX
;
4126 ofputil_append_queue_stat(&cbdata
->replies
, &oqs
);
4130 handle_queue_stats_dump_cb(uint32_t queue_id
,
4131 struct netdev_queue_stats
*stats
,
4134 struct queue_stats_cbdata
*cbdata
= cbdata_
;
4136 put_queue_stats(cbdata
, queue_id
, stats
);
4140 handle_queue_stats_for_port(struct ofport
*port
, uint32_t queue_id
,
4141 struct queue_stats_cbdata
*cbdata
)
4143 cbdata
->ofport
= port
;
4144 if (queue_id
== OFPQ_ALL
) {
4145 netdev_dump_queue_stats(port
->netdev
,
4146 handle_queue_stats_dump_cb
, cbdata
);
4148 struct netdev_queue_stats stats
;
4150 if (!netdev_get_queue_stats(port
->netdev
, queue_id
, &stats
)) {
4151 put_queue_stats(cbdata
, queue_id
, &stats
);
4153 return OFPERR_OFPQOFC_BAD_QUEUE
;
4160 handle_queue_stats_request(struct ofconn
*ofconn
,
4161 const struct ofp_header
*rq
)
4163 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
4164 struct queue_stats_cbdata cbdata
;
4165 struct ofport
*port
;
4167 struct ofputil_queue_stats_request oqsr
;
4169 COVERAGE_INC(ofproto_queue_req
);
4171 ofpmp_init(&cbdata
.replies
, rq
);
4172 cbdata
.now
= time_msec();
4174 error
= ofputil_decode_queue_stats_request(rq
, &oqsr
);
4179 if (oqsr
.port_no
== OFPP_ANY
) {
4180 error
= OFPERR_OFPQOFC_BAD_QUEUE
;
4181 HMAP_FOR_EACH (port
, hmap_node
, &ofproto
->ports
) {
4182 if (!handle_queue_stats_for_port(port
, oqsr
.queue_id
, &cbdata
)) {
4187 port
= ofproto_get_port(ofproto
, oqsr
.port_no
);
4189 ? handle_queue_stats_for_port(port
, oqsr
.queue_id
, &cbdata
)
4190 : OFPERR_OFPQOFC_BAD_PORT
);
4193 ofconn_send_replies(ofconn
, &cbdata
.replies
);
4195 ofpbuf_list_delete(&cbdata
.replies
);
4202 evict_rules_from_table(struct oftable
*table
, unsigned int extra_space
)
4203 OVS_REQUIRES(ofproto_mutex
)
4205 enum ofperr error
= 0;
4206 struct rule_collection rules
;
4207 unsigned int count
= classifier_count(&table
->cls
) + extra_space
;
4208 unsigned int max_flows
= table
->max_flows
;
4210 rule_collection_init(&rules
);
4212 while (count
-- > max_flows
) {
4215 if (!choose_rule_to_evict(table
, &rule
)) {
4216 error
= OFPERR_OFPFMFC_TABLE_FULL
;
4219 eviction_group_remove_rule(rule
);
4220 rule_collection_add(&rules
, rule
);
4223 delete_flows__(&rules
, OFPRR_EVICTION
, NULL
);
4224 rule_collection_destroy(&rules
);
4230 is_conjunction(const struct ofpact
*ofpacts
, size_t ofpacts_len
)
4232 return ofpacts_len
> 0 && ofpacts
->type
== OFPACT_CONJUNCTION
;
4236 get_conjunctions(const struct ofputil_flow_mod
*fm
,
4237 struct cls_conjunction
**conjsp
, size_t *n_conjsp
)
4238 OVS_REQUIRES(ofproto_mutex
)
4240 struct cls_conjunction
*conjs
= NULL
;
4243 if (is_conjunction(fm
->ofpacts
, fm
->ofpacts_len
)) {
4244 const struct ofpact
*ofpact
;
4248 OFPACT_FOR_EACH (ofpact
, fm
->ofpacts
, fm
->ofpacts_len
) {
4252 conjs
= xzalloc(n_conjs
* sizeof *conjs
);
4254 OFPACT_FOR_EACH (ofpact
, fm
->ofpacts
, fm
->ofpacts_len
) {
4255 struct ofpact_conjunction
*oc
= ofpact_get_CONJUNCTION(ofpact
);
4256 conjs
[i
].clause
= oc
->clause
;
4257 conjs
[i
].n_clauses
= oc
->n_clauses
;
4258 conjs
[i
].id
= oc
->id
;
4264 *n_conjsp
= n_conjs
;
4268 set_conjunctions(struct rule
*rule
, const struct cls_conjunction
*conjs
,
4270 OVS_REQUIRES(ofproto_mutex
)
4272 struct cls_rule
*cr
= CONST_CAST(struct cls_rule
*, &rule
->cr
);
4274 cls_rule_set_conjunctions(cr
, conjs
, n_conjs
);
4277 /* Implements OFPFC_ADD and the cases for OFPFC_MODIFY and OFPFC_MODIFY_STRICT
4278 * in which no matching flow already exists in the flow table.
4280 * Adds the flow specified by 'ofm', which is followed by 'n_actions'
4281 * ofp_actions, to the ofproto's flow table. Returns 0 on success, an OpenFlow
4282 * error code on failure, or OFPROTO_POSTPONE if the operation cannot be
4283 * initiated now but may be retried later.
4285 * The caller retains ownership of 'fm->ofpacts'.
4287 * 'ofconn' is used to retrieve the packet buffer specified in ofm->buffer_id,
4290 add_flow(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
4291 const struct flow_mod_requester
*req
)
4292 OVS_REQUIRES(ofproto_mutex
)
4294 const struct rule_actions
*actions
;
4295 struct oftable
*table
;
4301 if (!check_table_id(ofproto
, fm
->table_id
)) {
4302 error
= OFPERR_OFPBRC_BAD_TABLE_ID
;
4307 if (fm
->table_id
== 0xff) {
4308 if (ofproto
->ofproto_class
->rule_choose_table
) {
4309 error
= ofproto
->ofproto_class
->rule_choose_table(ofproto
,
4315 ovs_assert(table_id
< ofproto
->n_tables
);
4319 } else if (fm
->table_id
< ofproto
->n_tables
) {
4320 table_id
= fm
->table_id
;
4322 return OFPERR_OFPBRC_BAD_TABLE_ID
;
4325 table
= &ofproto
->tables
[table_id
];
4326 if (table
->flags
& OFTABLE_READONLY
4327 && !(fm
->flags
& OFPUTIL_FF_NO_READONLY
)) {
4328 return OFPERR_OFPBRC_EPERM
;
4331 if (!(fm
->flags
& OFPUTIL_FF_HIDDEN_FIELDS
)) {
4332 if (!match_has_default_hidden_fields(&fm
->match
)) {
4333 VLOG_WARN_RL(&rl
, "%s: (add_flow) only internal flows can set "
4334 "non-default values to hidden fields", ofproto
->name
);
4335 return OFPERR_OFPBRC_EPERM
;
4339 cls_rule_init(&cr
, &fm
->match
, fm
->priority
);
4341 /* Transform "add" into "modify" if there's an existing identical flow. */
4342 rule
= rule_from_cls_rule(classifier_find_rule_exactly(&table
->cls
, &cr
));
4344 struct rule_collection rules
;
4346 cls_rule_destroy(&cr
);
4348 rule_collection_init(&rules
);
4349 rule_collection_add(&rules
, rule
);
4350 fm
->modify_cookie
= true;
4351 error
= modify_flows__(ofproto
, fm
, &rules
, req
);
4352 rule_collection_destroy(&rules
);
4357 /* Check for overlap, if requested. */
4358 if (fm
->flags
& OFPUTIL_FF_CHECK_OVERLAP
) {
4359 if (classifier_rule_overlaps(&table
->cls
, &cr
)) {
4360 cls_rule_destroy(&cr
);
4361 return OFPERR_OFPFMFC_OVERLAP
;
4365 /* If necessary, evict an existing rule to clear out space. */
4366 error
= evict_rules_from_table(table
, 1);
4368 cls_rule_destroy(&cr
);
4372 /* Allocate new rule. */
4373 rule
= ofproto
->ofproto_class
->rule_alloc();
4375 cls_rule_destroy(&cr
);
4376 VLOG_WARN_RL(&rl
, "%s: failed to create rule (%s)",
4377 ofproto
->name
, ovs_strerror(error
));
4381 /* Initialize base state. */
4382 *CONST_CAST(struct ofproto
**, &rule
->ofproto
) = ofproto
;
4383 cls_rule_move(CONST_CAST(struct cls_rule
*, &rule
->cr
), &cr
);
4384 ovs_refcount_init(&rule
->ref_count
);
4385 rule
->flow_cookie
= fm
->new_cookie
;
4386 rule
->created
= rule
->modified
= time_msec();
4388 ovs_mutex_init(&rule
->mutex
);
4389 ovs_mutex_lock(&rule
->mutex
);
4390 rule
->idle_timeout
= fm
->idle_timeout
;
4391 rule
->hard_timeout
= fm
->hard_timeout
;
4392 rule
->importance
= fm
->importance
;
4393 ovs_mutex_unlock(&rule
->mutex
);
4395 *CONST_CAST(uint8_t *, &rule
->table_id
) = table
- ofproto
->tables
;
4396 rule
->flags
= fm
->flags
& OFPUTIL_FF_STATE
;
4397 actions
= rule_actions_create(fm
->ofpacts
, fm
->ofpacts_len
);
4398 ovsrcu_set(&rule
->actions
, actions
);
4399 list_init(&rule
->meter_list_node
);
4400 rule
->eviction_group
= NULL
;
4401 list_init(&rule
->expirable
);
4402 rule
->monitor_flags
= 0;
4403 rule
->add_seqno
= 0;
4404 rule
->modify_seqno
= 0;
4406 /* Construct rule, initializing derived state. */
4407 error
= ofproto
->ofproto_class
->rule_construct(rule
);
4409 ofproto_rule_destroy__(rule
);
4413 if (fm
->hard_timeout
|| fm
->idle_timeout
) {
4414 list_insert(&ofproto
->expirable
, &rule
->expirable
);
4416 cookies_insert(ofproto
, rule
);
4417 eviction_group_add_rule(rule
);
4418 if (actions
->has_meter
) {
4419 meter_insert_rule(rule
);
4422 classifier_defer(&table
->cls
);
4424 struct cls_conjunction
*conjs
;
4426 get_conjunctions(fm
, &conjs
, &n_conjs
);
4427 classifier_insert(&table
->cls
, &rule
->cr
, conjs
, n_conjs
);
4430 error
= ofproto
->ofproto_class
->rule_insert(rule
);
4432 oftable_remove_rule(rule
);
4433 ofproto_rule_unref(rule
);
4436 classifier_publish(&table
->cls
);
4438 learned_cookies_inc(ofproto
, actions
);
4440 if (minimask_get_vid_mask(&rule
->cr
.match
.mask
) == VLAN_VID_MASK
) {
4441 if (ofproto
->vlan_bitmap
) {
4442 uint16_t vid
= miniflow_get_vid(&rule
->cr
.match
.flow
);
4443 if (!bitmap_is_set(ofproto
->vlan_bitmap
, vid
)) {
4444 bitmap_set1(ofproto
->vlan_bitmap
, vid
);
4445 ofproto
->vlans_changed
= true;
4448 ofproto
->vlans_changed
= true;
4452 ofmonitor_report(ofproto
->connmgr
, rule
, NXFME_ADDED
, 0,
4453 req
? req
->ofconn
: NULL
, req
? req
->xid
: 0, NULL
);
4455 return req
? send_buffered_packet(req
->ofconn
, fm
->buffer_id
, rule
) : 0;
4458 /* OFPFC_MODIFY and OFPFC_MODIFY_STRICT. */
4460 /* Modifies the rules listed in 'rules', changing their actions to match those
4463 * 'ofconn' is used to retrieve the packet buffer specified in fm->buffer_id,
4466 * Returns 0 on success, otherwise an OpenFlow error code. */
4468 modify_flows__(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
4469 const struct rule_collection
*rules
,
4470 const struct flow_mod_requester
*req
)
4471 OVS_REQUIRES(ofproto_mutex
)
4473 struct ovs_list dead_cookies
= OVS_LIST_INITIALIZER(&dead_cookies
);
4474 enum nx_flow_update_event event
;
4477 if (ofproto
->ofproto_class
->rule_premodify_actions
) {
4478 for (i
= 0; i
< rules
->n
; i
++) {
4479 struct rule
*rule
= rules
->rules
[i
];
4482 error
= ofproto
->ofproto_class
->rule_premodify_actions(
4483 rule
, fm
->ofpacts
, fm
->ofpacts_len
);
4490 event
= fm
->command
== OFPFC_ADD
? NXFME_ADDED
: NXFME_MODIFIED
;
4491 for (i
= 0; i
< rules
->n
; i
++) {
4492 struct rule
*rule
= rules
->rules
[i
];
4494 /* 'fm' says that */
4495 bool change_cookie
= (fm
->modify_cookie
4496 && fm
->new_cookie
!= OVS_BE64_MAX
4497 && fm
->new_cookie
!= rule
->flow_cookie
);
4499 const struct rule_actions
*actions
= rule_get_actions(rule
);
4500 bool change_actions
= !ofpacts_equal(fm
->ofpacts
, fm
->ofpacts_len
,
4502 actions
->ofpacts_len
);
4504 bool reset_counters
= (fm
->flags
& OFPUTIL_FF_RESET_COUNTS
) != 0;
4506 long long int now
= time_msec();
4508 if (change_cookie
) {
4509 cookies_remove(ofproto
, rule
);
4512 ovs_mutex_lock(&rule
->mutex
);
4513 if (fm
->command
== OFPFC_ADD
) {
4514 rule
->idle_timeout
= fm
->idle_timeout
;
4515 rule
->hard_timeout
= fm
->hard_timeout
;
4516 rule
->importance
= fm
->importance
;
4517 rule
->flags
= fm
->flags
& OFPUTIL_FF_STATE
;
4518 rule
->created
= now
;
4520 if (change_cookie
) {
4521 rule
->flow_cookie
= fm
->new_cookie
;
4523 rule
->modified
= now
;
4524 ovs_mutex_unlock(&rule
->mutex
);
4526 if (change_cookie
) {
4527 cookies_insert(ofproto
, rule
);
4529 if (fm
->command
== OFPFC_ADD
) {
4530 if (fm
->idle_timeout
|| fm
->hard_timeout
|| fm
->importance
) {
4531 if (!rule
->eviction_group
) {
4532 eviction_group_add_rule(rule
);
4535 eviction_group_remove_rule(rule
);
4539 if (change_actions
) {
4540 /* We have to change the actions. The rule's conjunctive match set
4541 * is a function of its actions, so we need to update that too. The
4542 * conjunctive match set is used in the lookup process to figure
4543 * which (if any) collection of conjunctive sets the packet matches
4544 * with. However, a rule with conjunction actions is never to be
4545 * returned as a classifier lookup result. To make sure a rule with
4546 * conjunction actions is not returned as a lookup result, we update
4547 * them in a carefully chosen order:
4549 * - If we're adding a conjunctive match set where there wasn't one
4550 * before, we have to make the conjunctive match set available to
4551 * lookups before the rule's actions are changed, as otherwise
4552 * rule with a conjunction action could be returned as a lookup
4555 * - To clear some nonempty conjunctive set, we set the rule's
4556 * actions first, so that a lookup can't return a rule with
4557 * conjunction actions.
4559 * - Otherwise, order doesn't matter for changing one nonempty
4560 * conjunctive match set to some other nonempty set, since the
4561 * rule's actions are not seen by the classifier, and hence don't
4562 * matter either before or after the change. */
4563 struct cls_conjunction
*conjs
;
4565 get_conjunctions(fm
, &conjs
, &n_conjs
);
4568 set_conjunctions(rule
, conjs
, n_conjs
);
4570 ovsrcu_set(&rule
->actions
, rule_actions_create(fm
->ofpacts
,
4573 set_conjunctions(rule
, conjs
, n_conjs
);
4579 if (change_actions
|| reset_counters
) {
4580 ofproto
->ofproto_class
->rule_modify_actions(rule
, reset_counters
);
4583 if (event
!= NXFME_MODIFIED
|| change_actions
|| change_cookie
) {
4584 ofmonitor_report(ofproto
->connmgr
, rule
, event
, 0,
4585 req
? req
->ofconn
: NULL
, req
? req
->xid
: 0,
4586 change_actions
? actions
: NULL
);
4589 if (change_actions
) {
4590 learned_cookies_inc(ofproto
, rule_get_actions(rule
));
4591 learned_cookies_dec(ofproto
, actions
, &dead_cookies
);
4592 rule_actions_destroy(actions
);
4595 learned_cookies_flush(ofproto
, &dead_cookies
);
4597 if (fm
->buffer_id
!= UINT32_MAX
&& req
) {
4598 return send_buffered_packet(req
->ofconn
, fm
->buffer_id
,
4606 modify_flows_add(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
4607 const struct flow_mod_requester
*req
)
4608 OVS_REQUIRES(ofproto_mutex
)
4610 if (fm
->cookie_mask
!= htonll(0) || fm
->new_cookie
== OVS_BE64_MAX
) {
4613 return add_flow(ofproto
, fm
, req
);
4616 /* Implements OFPFC_MODIFY. Returns 0 on success or an OpenFlow error code on
4619 * 'ofconn' is used to retrieve the packet buffer specified in fm->buffer_id,
4622 modify_flows_loose(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
4623 const struct flow_mod_requester
*req
)
4624 OVS_REQUIRES(ofproto_mutex
)
4626 struct rule_criteria criteria
;
4627 struct rule_collection rules
;
4630 rule_criteria_init(&criteria
, fm
->table_id
, &fm
->match
, 0,
4631 fm
->cookie
, fm
->cookie_mask
, OFPP_ANY
, OFPG11_ANY
);
4632 rule_criteria_require_rw(&criteria
,
4633 (fm
->flags
& OFPUTIL_FF_NO_READONLY
) != 0);
4634 error
= collect_rules_loose(ofproto
, &criteria
, &rules
);
4635 rule_criteria_destroy(&criteria
);
4638 error
= (rules
.n
> 0
4639 ? modify_flows__(ofproto
, fm
, &rules
, req
)
4640 : modify_flows_add(ofproto
, fm
, req
));
4643 rule_collection_destroy(&rules
);
4648 /* Implements OFPFC_MODIFY_STRICT. Returns 0 on success or an OpenFlow error
4649 * code on failure. */
4651 modify_flow_strict(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
4652 const struct flow_mod_requester
*req
)
4653 OVS_REQUIRES(ofproto_mutex
)
4655 struct rule_criteria criteria
;
4656 struct rule_collection rules
;
4659 rule_criteria_init(&criteria
, fm
->table_id
, &fm
->match
, fm
->priority
,
4660 fm
->cookie
, fm
->cookie_mask
, OFPP_ANY
, OFPG11_ANY
);
4661 rule_criteria_require_rw(&criteria
,
4662 (fm
->flags
& OFPUTIL_FF_NO_READONLY
) != 0);
4663 error
= collect_rules_strict(ofproto
, &criteria
, &rules
);
4664 rule_criteria_destroy(&criteria
);
4668 error
= modify_flows_add(ofproto
, fm
, req
);
4669 } else if (rules
.n
== 1) {
4670 error
= modify_flows__(ofproto
, fm
, &rules
, req
);
4674 rule_collection_destroy(&rules
);
4679 /* OFPFC_DELETE implementation. */
4681 /* Deletes the rules listed in 'rules'. */
4683 delete_flows__(const struct rule_collection
*rules
,
4684 enum ofp_flow_removed_reason reason
,
4685 const struct flow_mod_requester
*req
)
4686 OVS_REQUIRES(ofproto_mutex
)
4689 struct ovs_list dead_cookies
= OVS_LIST_INITIALIZER(&dead_cookies
);
4690 struct ofproto
*ofproto
= rules
->rules
[0]->ofproto
;
4691 struct rule
*rule
, *next
;
4694 for (i
= 0, next
= rules
->rules
[0];
4695 rule
= next
, next
= (++i
< rules
->n
) ? rules
->rules
[i
] : NULL
,
4697 struct classifier
*cls
= &ofproto
->tables
[rule
->table_id
].cls
;
4698 uint8_t next_table
= next
? next
->table_id
: UINT8_MAX
;
4700 ofproto_rule_send_removed(rule
, reason
);
4702 ofmonitor_report(ofproto
->connmgr
, rule
, NXFME_DELETED
, reason
,
4703 req
? req
->ofconn
: NULL
, req
? req
->xid
: 0,
4706 if (next_table
== rule
->table_id
) {
4707 classifier_defer(cls
);
4709 classifier_remove(cls
, &rule
->cr
);
4710 if (next_table
!= rule
->table_id
) {
4711 classifier_publish(cls
);
4713 ofproto_rule_remove__(ofproto
, rule
);
4715 ofproto
->ofproto_class
->rule_delete(rule
);
4717 learned_cookies_dec(ofproto
, rule_get_actions(rule
),
4720 learned_cookies_flush(ofproto
, &dead_cookies
);
4721 ofmonitor_flush(ofproto
->connmgr
);
4725 /* Implements OFPFC_DELETE. */
4727 delete_flows_loose(struct ofproto
*ofproto
,
4728 const struct ofputil_flow_mod
*fm
,
4729 const struct flow_mod_requester
*req
)
4730 OVS_REQUIRES(ofproto_mutex
)
4732 struct rule_criteria criteria
;
4733 struct rule_collection rules
;
4736 rule_criteria_init(&criteria
, fm
->table_id
, &fm
->match
, 0,
4737 fm
->cookie
, fm
->cookie_mask
,
4738 fm
->out_port
, fm
->out_group
);
4739 rule_criteria_require_rw(&criteria
,
4740 (fm
->flags
& OFPUTIL_FF_NO_READONLY
) != 0);
4741 error
= collect_rules_loose(ofproto
, &criteria
, &rules
);
4742 rule_criteria_destroy(&criteria
);
4745 delete_flows__(&rules
, fm
->delete_reason
, req
);
4747 rule_collection_destroy(&rules
);
4752 /* Implements OFPFC_DELETE_STRICT. */
4754 delete_flow_strict(struct ofproto
*ofproto
, const struct ofputil_flow_mod
*fm
,
4755 const struct flow_mod_requester
*req
)
4756 OVS_REQUIRES(ofproto_mutex
)
4758 struct rule_criteria criteria
;
4759 struct rule_collection rules
;
4762 rule_criteria_init(&criteria
, fm
->table_id
, &fm
->match
, fm
->priority
,
4763 fm
->cookie
, fm
->cookie_mask
,
4764 fm
->out_port
, fm
->out_group
);
4765 rule_criteria_require_rw(&criteria
,
4766 (fm
->flags
& OFPUTIL_FF_NO_READONLY
) != 0);
4767 error
= collect_rules_strict(ofproto
, &criteria
, &rules
);
4768 rule_criteria_destroy(&criteria
);
4771 delete_flows__(&rules
, fm
->delete_reason
, req
);
4773 rule_collection_destroy(&rules
);
4779 ofproto_rule_send_removed(struct rule
*rule
, uint8_t reason
)
4780 OVS_REQUIRES(ofproto_mutex
)
4782 struct ofputil_flow_removed fr
;
4785 if (rule_is_hidden(rule
) ||
4786 !(rule
->flags
& OFPUTIL_FF_SEND_FLOW_REM
)) {
4790 minimatch_expand(&rule
->cr
.match
, &fr
.match
);
4791 fr
.priority
= rule
->cr
.priority
;
4792 fr
.cookie
= rule
->flow_cookie
;
4794 fr
.table_id
= rule
->table_id
;
4795 calc_duration(rule
->created
, time_msec(),
4796 &fr
.duration_sec
, &fr
.duration_nsec
);
4797 ovs_mutex_lock(&rule
->mutex
);
4798 fr
.idle_timeout
= rule
->idle_timeout
;
4799 fr
.hard_timeout
= rule
->hard_timeout
;
4800 ovs_mutex_unlock(&rule
->mutex
);
4801 rule
->ofproto
->ofproto_class
->rule_get_stats(rule
, &fr
.packet_count
,
4802 &fr
.byte_count
, &used
);
4804 connmgr_send_flow_removed(rule
->ofproto
->connmgr
, &fr
);
4807 /* Sends an OpenFlow "flow removed" message with the given 'reason' (either
4808 * OFPRR_HARD_TIMEOUT or OFPRR_IDLE_TIMEOUT), and then removes 'rule' from its
4811 * ofproto implementation ->run() functions should use this function to expire
4812 * OpenFlow flows. */
4814 ofproto_rule_expire(struct rule
*rule
, uint8_t reason
)
4815 OVS_REQUIRES(ofproto_mutex
)
4817 struct rule_collection rules
;
4819 rules
.rules
= rules
.stub
;
4821 rules
.stub
[0] = rule
;
4822 delete_flows__(&rules
, reason
, NULL
);
4825 /* Reduces '*timeout' to no more than 'max'. A value of zero in either case
4826 * means "infinite". */
4828 reduce_timeout(uint16_t max
, uint16_t *timeout
)
4830 if (max
&& (!*timeout
|| *timeout
> max
)) {
4835 /* If 'idle_timeout' is nonzero, and 'rule' has no idle timeout or an idle
4836 * timeout greater than 'idle_timeout', lowers 'rule''s idle timeout to
4837 * 'idle_timeout' seconds. Similarly for 'hard_timeout'.
4839 * Suitable for implementing OFPACT_FIN_TIMEOUT. */
4841 ofproto_rule_reduce_timeouts(struct rule
*rule
,
4842 uint16_t idle_timeout
, uint16_t hard_timeout
)
4843 OVS_EXCLUDED(ofproto_mutex
, rule
->mutex
)
4845 if (!idle_timeout
&& !hard_timeout
) {
4849 ovs_mutex_lock(&ofproto_mutex
);
4850 if (list_is_empty(&rule
->expirable
)) {
4851 list_insert(&rule
->ofproto
->expirable
, &rule
->expirable
);
4853 ovs_mutex_unlock(&ofproto_mutex
);
4855 ovs_mutex_lock(&rule
->mutex
);
4856 reduce_timeout(idle_timeout
, &rule
->idle_timeout
);
4857 reduce_timeout(hard_timeout
, &rule
->hard_timeout
);
4858 ovs_mutex_unlock(&rule
->mutex
);
4862 handle_flow_mod(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
4863 OVS_EXCLUDED(ofproto_mutex
)
4865 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
4866 struct ofputil_flow_mod fm
;
4867 uint64_t ofpacts_stub
[1024 / 8];
4868 struct ofpbuf ofpacts
;
4871 error
= reject_slave_controller(ofconn
);
4876 ofpbuf_use_stub(&ofpacts
, ofpacts_stub
, sizeof ofpacts_stub
);
4877 error
= ofputil_decode_flow_mod(&fm
, oh
, ofconn_get_protocol(ofconn
),
4879 u16_to_ofp(ofproto
->max_ports
),
4882 error
= ofproto_check_ofpacts(ofproto
, fm
.ofpacts
, fm
.ofpacts_len
);
4885 struct flow_mod_requester req
;
4887 req
.ofconn
= ofconn
;
4889 error
= handle_flow_mod__(ofproto
, &fm
, &req
);
4892 goto exit_free_ofpacts
;
4895 ofconn_report_flow_mod(ofconn
, fm
.command
);
4898 ofpbuf_uninit(&ofpacts
);
4904 handle_flow_mod__(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
4905 const struct flow_mod_requester
*req
)
4906 OVS_EXCLUDED(ofproto_mutex
)
4910 ovs_mutex_lock(&ofproto_mutex
);
4911 switch (fm
->command
) {
4913 error
= add_flow(ofproto
, fm
, req
);
4917 error
= modify_flows_loose(ofproto
, fm
, req
);
4920 case OFPFC_MODIFY_STRICT
:
4921 error
= modify_flow_strict(ofproto
, fm
, req
);
4925 error
= delete_flows_loose(ofproto
, fm
, req
);
4928 case OFPFC_DELETE_STRICT
:
4929 error
= delete_flow_strict(ofproto
, fm
, req
);
4933 if (fm
->command
> 0xff) {
4934 VLOG_WARN_RL(&rl
, "%s: flow_mod has explicit table_id but "
4935 "flow_mod_table_id extension is not enabled",
4938 error
= OFPERR_OFPFMFC_BAD_COMMAND
;
4941 ofmonitor_flush(ofproto
->connmgr
);
4942 ovs_mutex_unlock(&ofproto_mutex
);
4944 run_rule_executes(ofproto
);
4949 handle_role_request(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
4951 struct ofputil_role_request request
;
4952 struct ofputil_role_request reply
;
4956 error
= ofputil_decode_role_message(oh
, &request
);
4961 if (request
.role
!= OFPCR12_ROLE_NOCHANGE
) {
4962 if (request
.have_generation_id
4963 && !ofconn_set_master_election_id(ofconn
, request
.generation_id
)) {
4964 return OFPERR_OFPRRFC_STALE
;
4967 ofconn_set_role(ofconn
, request
.role
);
4970 reply
.role
= ofconn_get_role(ofconn
);
4971 reply
.have_generation_id
= ofconn_get_master_election_id(
4972 ofconn
, &reply
.generation_id
);
4973 buf
= ofputil_encode_role_reply(oh
, &reply
);
4974 ofconn_send_reply(ofconn
, buf
);
4980 handle_nxt_flow_mod_table_id(struct ofconn
*ofconn
,
4981 const struct ofp_header
*oh
)
4983 const struct nx_flow_mod_table_id
*msg
= ofpmsg_body(oh
);
4984 enum ofputil_protocol cur
, next
;
4986 cur
= ofconn_get_protocol(ofconn
);
4987 next
= ofputil_protocol_set_tid(cur
, msg
->set
!= 0);
4988 ofconn_set_protocol(ofconn
, next
);
4994 handle_nxt_set_flow_format(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
4996 const struct nx_set_flow_format
*msg
= ofpmsg_body(oh
);
4997 enum ofputil_protocol cur
, next
;
4998 enum ofputil_protocol next_base
;
5000 next_base
= ofputil_nx_flow_format_to_protocol(ntohl(msg
->format
));
5002 return OFPERR_OFPBRC_EPERM
;
5005 cur
= ofconn_get_protocol(ofconn
);
5006 next
= ofputil_protocol_set_base(cur
, next_base
);
5007 ofconn_set_protocol(ofconn
, next
);
5013 handle_nxt_set_packet_in_format(struct ofconn
*ofconn
,
5014 const struct ofp_header
*oh
)
5016 const struct nx_set_packet_in_format
*msg
= ofpmsg_body(oh
);
5019 format
= ntohl(msg
->format
);
5020 if (format
!= NXPIF_OPENFLOW10
&& format
!= NXPIF_NXM
) {
5021 return OFPERR_OFPBRC_EPERM
;
5024 ofconn_set_packet_in_format(ofconn
, format
);
5029 handle_nxt_set_async_config(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
5031 const struct nx_async_config
*msg
= ofpmsg_body(oh
);
5032 uint32_t master
[OAM_N_TYPES
];
5033 uint32_t slave
[OAM_N_TYPES
];
5035 master
[OAM_PACKET_IN
] = ntohl(msg
->packet_in_mask
[0]);
5036 master
[OAM_PORT_STATUS
] = ntohl(msg
->port_status_mask
[0]);
5037 master
[OAM_FLOW_REMOVED
] = ntohl(msg
->flow_removed_mask
[0]);
5039 slave
[OAM_PACKET_IN
] = ntohl(msg
->packet_in_mask
[1]);
5040 slave
[OAM_PORT_STATUS
] = ntohl(msg
->port_status_mask
[1]);
5041 slave
[OAM_FLOW_REMOVED
] = ntohl(msg
->flow_removed_mask
[1]);
5043 ofconn_set_async_config(ofconn
, master
, slave
);
5044 if (ofconn_get_type(ofconn
) == OFCONN_SERVICE
&&
5045 !ofconn_get_miss_send_len(ofconn
)) {
5046 ofconn_set_miss_send_len(ofconn
, OFP_DEFAULT_MISS_SEND_LEN
);
5053 handle_nxt_get_async_request(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
5056 uint32_t master
[OAM_N_TYPES
];
5057 uint32_t slave
[OAM_N_TYPES
];
5058 struct nx_async_config
*msg
;
5060 ofconn_get_async_config(ofconn
, master
, slave
);
5061 buf
= ofpraw_alloc_reply(OFPRAW_OFPT13_GET_ASYNC_REPLY
, oh
, 0);
5062 msg
= ofpbuf_put_zeros(buf
, sizeof *msg
);
5064 msg
->packet_in_mask
[0] = htonl(master
[OAM_PACKET_IN
]);
5065 msg
->port_status_mask
[0] = htonl(master
[OAM_PORT_STATUS
]);
5066 msg
->flow_removed_mask
[0] = htonl(master
[OAM_FLOW_REMOVED
]);
5068 msg
->packet_in_mask
[1] = htonl(slave
[OAM_PACKET_IN
]);
5069 msg
->port_status_mask
[1] = htonl(slave
[OAM_PORT_STATUS
]);
5070 msg
->flow_removed_mask
[1] = htonl(slave
[OAM_FLOW_REMOVED
]);
5072 ofconn_send_reply(ofconn
, buf
);
5078 handle_nxt_set_controller_id(struct ofconn
*ofconn
,
5079 const struct ofp_header
*oh
)
5081 const struct nx_controller_id
*nci
= ofpmsg_body(oh
);
5083 if (!is_all_zeros(nci
->zero
, sizeof nci
->zero
)) {
5084 return OFPERR_NXBRC_MUST_BE_ZERO
;
5087 ofconn_set_controller_id(ofconn
, ntohs(nci
->controller_id
));
5092 handle_barrier_request(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
5096 buf
= ofpraw_alloc_reply((oh
->version
== OFP10_VERSION
5097 ? OFPRAW_OFPT10_BARRIER_REPLY
5098 : OFPRAW_OFPT11_BARRIER_REPLY
), oh
, 0);
5099 ofconn_send_reply(ofconn
, buf
);
5104 ofproto_compose_flow_refresh_update(const struct rule
*rule
,
5105 enum nx_flow_monitor_flags flags
,
5106 struct ovs_list
*msgs
)
5107 OVS_REQUIRES(ofproto_mutex
)
5109 const struct rule_actions
*actions
;
5110 struct ofputil_flow_update fu
;
5113 fu
.event
= (flags
& (NXFMF_INITIAL
| NXFMF_ADD
)
5114 ? NXFME_ADDED
: NXFME_MODIFIED
);
5116 ovs_mutex_lock(&rule
->mutex
);
5117 fu
.idle_timeout
= rule
->idle_timeout
;
5118 fu
.hard_timeout
= rule
->hard_timeout
;
5119 ovs_mutex_unlock(&rule
->mutex
);
5120 fu
.table_id
= rule
->table_id
;
5121 fu
.cookie
= rule
->flow_cookie
;
5122 minimatch_expand(&rule
->cr
.match
, &match
);
5124 fu
.priority
= rule
->cr
.priority
;
5126 actions
= flags
& NXFMF_ACTIONS
? rule_get_actions(rule
) : NULL
;
5127 fu
.ofpacts
= actions
? actions
->ofpacts
: NULL
;
5128 fu
.ofpacts_len
= actions
? actions
->ofpacts_len
: 0;
5130 if (list_is_empty(msgs
)) {
5131 ofputil_start_flow_update(msgs
);
5133 ofputil_append_flow_update(&fu
, msgs
);
5137 ofmonitor_compose_refresh_updates(struct rule_collection
*rules
,
5138 struct ovs_list
*msgs
)
5139 OVS_REQUIRES(ofproto_mutex
)
5143 for (i
= 0; i
< rules
->n
; i
++) {
5144 struct rule
*rule
= rules
->rules
[i
];
5145 enum nx_flow_monitor_flags flags
= rule
->monitor_flags
;
5146 rule
->monitor_flags
= 0;
5148 ofproto_compose_flow_refresh_update(rule
, flags
, msgs
);
5153 ofproto_collect_ofmonitor_refresh_rule(const struct ofmonitor
*m
,
5154 struct rule
*rule
, uint64_t seqno
,
5155 struct rule_collection
*rules
)
5156 OVS_REQUIRES(ofproto_mutex
)
5158 enum nx_flow_monitor_flags update
;
5160 if (rule_is_hidden(rule
)) {
5164 if (!ofproto_rule_has_out_port(rule
, m
->out_port
)) {
5169 if (rule
->add_seqno
> seqno
) {
5170 update
= NXFMF_ADD
| NXFMF_MODIFY
;
5171 } else if (rule
->modify_seqno
> seqno
) {
5172 update
= NXFMF_MODIFY
;
5177 if (!(m
->flags
& update
)) {
5181 update
= NXFMF_INITIAL
;
5184 if (!rule
->monitor_flags
) {
5185 rule_collection_add(rules
, rule
);
5187 rule
->monitor_flags
|= update
| (m
->flags
& NXFMF_ACTIONS
);
5191 ofproto_collect_ofmonitor_refresh_rules(const struct ofmonitor
*m
,
5193 struct rule_collection
*rules
)
5194 OVS_REQUIRES(ofproto_mutex
)
5196 const struct ofproto
*ofproto
= ofconn_get_ofproto(m
->ofconn
);
5197 const struct oftable
*table
;
5198 struct cls_rule target
;
5200 cls_rule_init_from_minimatch(&target
, &m
->match
, 0);
5201 FOR_EACH_MATCHING_TABLE (table
, m
->table_id
, ofproto
) {
5204 CLS_FOR_EACH_TARGET (rule
, cr
, &table
->cls
, &target
) {
5205 ofproto_collect_ofmonitor_refresh_rule(m
, rule
, seqno
, rules
);
5208 cls_rule_destroy(&target
);
5212 ofproto_collect_ofmonitor_initial_rules(struct ofmonitor
*m
,
5213 struct rule_collection
*rules
)
5214 OVS_REQUIRES(ofproto_mutex
)
5216 if (m
->flags
& NXFMF_INITIAL
) {
5217 ofproto_collect_ofmonitor_refresh_rules(m
, 0, rules
);
5222 ofmonitor_collect_resume_rules(struct ofmonitor
*m
,
5223 uint64_t seqno
, struct rule_collection
*rules
)
5224 OVS_REQUIRES(ofproto_mutex
)
5226 ofproto_collect_ofmonitor_refresh_rules(m
, seqno
, rules
);
5230 flow_monitor_delete(struct ofconn
*ofconn
, uint32_t id
)
5231 OVS_REQUIRES(ofproto_mutex
)
5233 struct ofmonitor
*m
;
5236 m
= ofmonitor_lookup(ofconn
, id
);
5238 ofmonitor_destroy(m
);
5241 error
= OFPERR_OFPMOFC_UNKNOWN_MONITOR
;
5248 handle_flow_monitor_request(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
5249 OVS_EXCLUDED(ofproto_mutex
)
5251 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
5252 struct ofmonitor
**monitors
;
5253 size_t n_monitors
, allocated_monitors
;
5254 struct rule_collection rules
;
5255 struct ovs_list replies
;
5260 ofpbuf_use_const(&b
, oh
, ntohs(oh
->length
));
5262 n_monitors
= allocated_monitors
= 0;
5264 ovs_mutex_lock(&ofproto_mutex
);
5266 struct ofputil_flow_monitor_request request
;
5267 struct ofmonitor
*m
;
5270 retval
= ofputil_decode_flow_monitor_request(&request
, &b
);
5271 if (retval
== EOF
) {
5273 } else if (retval
) {
5278 if (request
.table_id
!= 0xff
5279 && request
.table_id
>= ofproto
->n_tables
) {
5280 error
= OFPERR_OFPBRC_BAD_TABLE_ID
;
5284 error
= ofmonitor_create(&request
, ofconn
, &m
);
5289 if (n_monitors
>= allocated_monitors
) {
5290 monitors
= x2nrealloc(monitors
, &allocated_monitors
,
5293 monitors
[n_monitors
++] = m
;
5296 rule_collection_init(&rules
);
5297 for (i
= 0; i
< n_monitors
; i
++) {
5298 ofproto_collect_ofmonitor_initial_rules(monitors
[i
], &rules
);
5301 ofpmp_init(&replies
, oh
);
5302 ofmonitor_compose_refresh_updates(&rules
, &replies
);
5303 ovs_mutex_unlock(&ofproto_mutex
);
5305 rule_collection_destroy(&rules
);
5307 ofconn_send_replies(ofconn
, &replies
);
5313 for (i
= 0; i
< n_monitors
; i
++) {
5314 ofmonitor_destroy(monitors
[i
]);
5317 ovs_mutex_unlock(&ofproto_mutex
);
5323 handle_flow_monitor_cancel(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
5324 OVS_EXCLUDED(ofproto_mutex
)
5329 id
= ofputil_decode_flow_monitor_cancel(oh
);
5331 ovs_mutex_lock(&ofproto_mutex
);
5332 error
= flow_monitor_delete(ofconn
, id
);
5333 ovs_mutex_unlock(&ofproto_mutex
);
5338 /* Meters implementation.
5340 * Meter table entry, indexed by the OpenFlow meter_id.
5341 * 'created' is used to compute the duration for meter stats.
5342 * 'list rules' is needed so that we can delete the dependent rules when the
5343 * meter table entry is deleted.
5344 * 'provider_meter_id' is for the provider's private use.
5347 long long int created
; /* Time created. */
5348 struct ovs_list rules
; /* List of "struct rule_dpif"s. */
5349 ofproto_meter_id provider_meter_id
;
5350 uint16_t flags
; /* Meter flags. */
5351 uint16_t n_bands
; /* Number of meter bands. */
5352 struct ofputil_meter_band
*bands
;
5356 * This is used in instruction validation at flow set-up time,
5357 * as flows may not use non-existing meters.
5358 * Return value of UINT32_MAX signifies an invalid meter.
5361 get_provider_meter_id(const struct ofproto
*ofproto
, uint32_t of_meter_id
)
5363 if (of_meter_id
&& of_meter_id
<= ofproto
->meter_features
.max_meters
) {
5364 const struct meter
*meter
= ofproto
->meters
[of_meter_id
];
5366 return meter
->provider_meter_id
.uint32
;
5372 /* Finds the meter invoked by 'rule''s actions and adds 'rule' to the meter's
5375 meter_insert_rule(struct rule
*rule
)
5377 const struct rule_actions
*a
= rule_get_actions(rule
);
5378 uint32_t meter_id
= ofpacts_get_meter(a
->ofpacts
, a
->ofpacts_len
);
5379 struct meter
*meter
= rule
->ofproto
->meters
[meter_id
];
5381 list_insert(&meter
->rules
, &rule
->meter_list_node
);
5385 meter_update(struct meter
*meter
, const struct ofputil_meter_config
*config
)
5389 meter
->flags
= config
->flags
;
5390 meter
->n_bands
= config
->n_bands
;
5391 meter
->bands
= xmemdup(config
->bands
,
5392 config
->n_bands
* sizeof *meter
->bands
);
5395 static struct meter
*
5396 meter_create(const struct ofputil_meter_config
*config
,
5397 ofproto_meter_id provider_meter_id
)
5399 struct meter
*meter
;
5401 meter
= xzalloc(sizeof *meter
);
5402 meter
->provider_meter_id
= provider_meter_id
;
5403 meter
->created
= time_msec();
5404 list_init(&meter
->rules
);
5406 meter_update(meter
, config
);
5412 meter_delete(struct ofproto
*ofproto
, uint32_t first
, uint32_t last
)
5413 OVS_REQUIRES(ofproto_mutex
)
5416 for (mid
= first
; mid
<= last
; ++mid
) {
5417 struct meter
*meter
= ofproto
->meters
[mid
];
5419 ofproto
->meters
[mid
] = NULL
;
5420 ofproto
->ofproto_class
->meter_del(ofproto
,
5421 meter
->provider_meter_id
);
5429 handle_add_meter(struct ofproto
*ofproto
, struct ofputil_meter_mod
*mm
)
5431 ofproto_meter_id provider_meter_id
= { UINT32_MAX
};
5432 struct meter
**meterp
= &ofproto
->meters
[mm
->meter
.meter_id
];
5436 return OFPERR_OFPMMFC_METER_EXISTS
;
5439 error
= ofproto
->ofproto_class
->meter_set(ofproto
, &provider_meter_id
,
5442 ovs_assert(provider_meter_id
.uint32
!= UINT32_MAX
);
5443 *meterp
= meter_create(&mm
->meter
, provider_meter_id
);
5449 handle_modify_meter(struct ofproto
*ofproto
, struct ofputil_meter_mod
*mm
)
5451 struct meter
*meter
= ofproto
->meters
[mm
->meter
.meter_id
];
5453 uint32_t provider_meter_id
;
5456 return OFPERR_OFPMMFC_UNKNOWN_METER
;
5459 provider_meter_id
= meter
->provider_meter_id
.uint32
;
5460 error
= ofproto
->ofproto_class
->meter_set(ofproto
,
5461 &meter
->provider_meter_id
,
5463 ovs_assert(meter
->provider_meter_id
.uint32
== provider_meter_id
);
5465 meter_update(meter
, &mm
->meter
);
5471 handle_delete_meter(struct ofconn
*ofconn
, struct ofputil_meter_mod
*mm
)
5472 OVS_EXCLUDED(ofproto_mutex
)
5474 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
5475 uint32_t meter_id
= mm
->meter
.meter_id
;
5476 struct rule_collection rules
;
5477 enum ofperr error
= 0;
5478 uint32_t first
, last
;
5480 if (meter_id
== OFPM13_ALL
) {
5482 last
= ofproto
->meter_features
.max_meters
;
5484 if (!meter_id
|| meter_id
> ofproto
->meter_features
.max_meters
) {
5487 first
= last
= meter_id
;
5490 /* First delete the rules that use this meter. If any of those rules are
5491 * currently being modified, postpone the whole operation until later. */
5492 rule_collection_init(&rules
);
5493 ovs_mutex_lock(&ofproto_mutex
);
5494 for (meter_id
= first
; meter_id
<= last
; ++meter_id
) {
5495 struct meter
*meter
= ofproto
->meters
[meter_id
];
5496 if (meter
&& !list_is_empty(&meter
->rules
)) {
5499 LIST_FOR_EACH (rule
, meter_list_node
, &meter
->rules
) {
5500 rule_collection_add(&rules
, rule
);
5504 delete_flows__(&rules
, OFPRR_METER_DELETE
, NULL
);
5506 /* Delete the meters. */
5507 meter_delete(ofproto
, first
, last
);
5509 ovs_mutex_unlock(&ofproto_mutex
);
5510 rule_collection_destroy(&rules
);
5516 handle_meter_mod(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
5518 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
5519 struct ofputil_meter_mod mm
;
5520 uint64_t bands_stub
[256 / 8];
5521 struct ofpbuf bands
;
5525 error
= reject_slave_controller(ofconn
);
5530 ofpbuf_use_stub(&bands
, bands_stub
, sizeof bands_stub
);
5532 error
= ofputil_decode_meter_mod(oh
, &mm
, &bands
);
5534 goto exit_free_bands
;
5537 meter_id
= mm
.meter
.meter_id
;
5539 if (mm
.command
!= OFPMC13_DELETE
) {
5540 /* Fails also when meters are not implemented by the provider. */
5541 if (meter_id
== 0 || meter_id
> OFPM13_MAX
) {
5542 error
= OFPERR_OFPMMFC_INVALID_METER
;
5543 goto exit_free_bands
;
5544 } else if (meter_id
> ofproto
->meter_features
.max_meters
) {
5545 error
= OFPERR_OFPMMFC_OUT_OF_METERS
;
5546 goto exit_free_bands
;
5548 if (mm
.meter
.n_bands
> ofproto
->meter_features
.max_bands
) {
5549 error
= OFPERR_OFPMMFC_OUT_OF_BANDS
;
5550 goto exit_free_bands
;
5554 switch (mm
.command
) {
5556 error
= handle_add_meter(ofproto
, &mm
);
5559 case OFPMC13_MODIFY
:
5560 error
= handle_modify_meter(ofproto
, &mm
);
5563 case OFPMC13_DELETE
:
5564 error
= handle_delete_meter(ofconn
, &mm
);
5568 error
= OFPERR_OFPMMFC_BAD_COMMAND
;
5573 ofpbuf_uninit(&bands
);
5578 handle_meter_features_request(struct ofconn
*ofconn
,
5579 const struct ofp_header
*request
)
5581 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
5582 struct ofputil_meter_features features
;
5585 if (ofproto
->ofproto_class
->meter_get_features
) {
5586 ofproto
->ofproto_class
->meter_get_features(ofproto
, &features
);
5588 memset(&features
, 0, sizeof features
);
5590 b
= ofputil_encode_meter_features_reply(&features
, request
);
5592 ofconn_send_reply(ofconn
, b
);
5597 handle_meter_request(struct ofconn
*ofconn
, const struct ofp_header
*request
,
5600 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
5601 struct ovs_list replies
;
5602 uint64_t bands_stub
[256 / 8];
5603 struct ofpbuf bands
;
5604 uint32_t meter_id
, first
, last
;
5606 ofputil_decode_meter_request(request
, &meter_id
);
5608 if (meter_id
== OFPM13_ALL
) {
5610 last
= ofproto
->meter_features
.max_meters
;
5612 if (!meter_id
|| meter_id
> ofproto
->meter_features
.max_meters
||
5613 !ofproto
->meters
[meter_id
]) {
5614 return OFPERR_OFPMMFC_UNKNOWN_METER
;
5616 first
= last
= meter_id
;
5619 ofpbuf_use_stub(&bands
, bands_stub
, sizeof bands_stub
);
5620 ofpmp_init(&replies
, request
);
5622 for (meter_id
= first
; meter_id
<= last
; ++meter_id
) {
5623 struct meter
*meter
= ofproto
->meters
[meter_id
];
5625 continue; /* Skip non-existing meters. */
5627 if (type
== OFPTYPE_METER_STATS_REQUEST
) {
5628 struct ofputil_meter_stats stats
;
5630 stats
.meter_id
= meter_id
;
5632 /* Provider sets the packet and byte counts, we do the rest. */
5633 stats
.flow_count
= list_size(&meter
->rules
);
5634 calc_duration(meter
->created
, time_msec(),
5635 &stats
.duration_sec
, &stats
.duration_nsec
);
5636 stats
.n_bands
= meter
->n_bands
;
5637 ofpbuf_clear(&bands
);
5639 = ofpbuf_put_uninit(&bands
,
5640 meter
->n_bands
* sizeof *stats
.bands
);
5642 if (!ofproto
->ofproto_class
->meter_get(ofproto
,
5643 meter
->provider_meter_id
,
5645 ofputil_append_meter_stats(&replies
, &stats
);
5647 } else { /* type == OFPTYPE_METER_CONFIG_REQUEST */
5648 struct ofputil_meter_config config
;
5650 config
.meter_id
= meter_id
;
5651 config
.flags
= meter
->flags
;
5652 config
.n_bands
= meter
->n_bands
;
5653 config
.bands
= meter
->bands
;
5654 ofputil_append_meter_config(&replies
, &config
);
5658 ofconn_send_replies(ofconn
, &replies
);
5659 ofpbuf_uninit(&bands
);
5664 ofproto_group_lookup__(const struct ofproto
*ofproto
, uint32_t group_id
,
5665 struct ofgroup
**group
)
5666 OVS_REQ_RDLOCK(ofproto
->groups_rwlock
)
5668 HMAP_FOR_EACH_IN_BUCKET (*group
, hmap_node
,
5669 hash_int(group_id
, 0), &ofproto
->groups
) {
5670 if ((*group
)->group_id
== group_id
) {
5678 /* If the group exists, this function increments the groups's reference count.
5680 * Make sure to call ofproto_group_unref() after no longer needing to maintain
5681 * a reference to the group. */
5683 ofproto_group_lookup(const struct ofproto
*ofproto
, uint32_t group_id
,
5684 struct ofgroup
**group
)
5688 ovs_rwlock_rdlock(&ofproto
->groups_rwlock
);
5689 found
= ofproto_group_lookup__(ofproto
, group_id
, group
);
5691 ofproto_group_ref(*group
);
5693 ovs_rwlock_unlock(&ofproto
->groups_rwlock
);
5698 ofproto_group_exists__(const struct ofproto
*ofproto
, uint32_t group_id
)
5699 OVS_REQ_RDLOCK(ofproto
->groups_rwlock
)
5701 struct ofgroup
*grp
;
5703 HMAP_FOR_EACH_IN_BUCKET (grp
, hmap_node
,
5704 hash_int(group_id
, 0), &ofproto
->groups
) {
5705 if (grp
->group_id
== group_id
) {
5713 ofproto_group_exists(const struct ofproto
*ofproto
, uint32_t group_id
)
5714 OVS_EXCLUDED(ofproto
->groups_rwlock
)
5718 ovs_rwlock_rdlock(&ofproto
->groups_rwlock
);
5719 exists
= ofproto_group_exists__(ofproto
, group_id
);
5720 ovs_rwlock_unlock(&ofproto
->groups_rwlock
);
5726 group_get_ref_count(struct ofgroup
*group
)
5727 OVS_EXCLUDED(ofproto_mutex
)
5729 struct ofproto
*ofproto
= CONST_CAST(struct ofproto
*, group
->ofproto
);
5730 struct rule_criteria criteria
;
5731 struct rule_collection rules
;
5736 match_init_catchall(&match
);
5737 rule_criteria_init(&criteria
, 0xff, &match
, 0, htonll(0), htonll(0),
5738 OFPP_ANY
, group
->group_id
);
5739 ovs_mutex_lock(&ofproto_mutex
);
5740 error
= collect_rules_loose(ofproto
, &criteria
, &rules
);
5741 ovs_mutex_unlock(&ofproto_mutex
);
5742 rule_criteria_destroy(&criteria
);
5744 count
= !error
&& rules
.n
< UINT32_MAX
? rules
.n
: UINT32_MAX
;
5746 rule_collection_destroy(&rules
);
5751 append_group_stats(struct ofgroup
*group
, struct ovs_list
*replies
)
5753 struct ofputil_group_stats ogs
;
5754 const struct ofproto
*ofproto
= group
->ofproto
;
5755 long long int now
= time_msec();
5758 ogs
.bucket_stats
= xmalloc(group
->n_buckets
* sizeof *ogs
.bucket_stats
);
5760 /* Provider sets the packet and byte counts, we do the rest. */
5761 ogs
.ref_count
= group_get_ref_count(group
);
5762 ogs
.n_buckets
= group
->n_buckets
;
5764 error
= (ofproto
->ofproto_class
->group_get_stats
5765 ? ofproto
->ofproto_class
->group_get_stats(group
, &ogs
)
5768 ogs
.packet_count
= UINT64_MAX
;
5769 ogs
.byte_count
= UINT64_MAX
;
5770 memset(ogs
.bucket_stats
, 0xff,
5771 ogs
.n_buckets
* sizeof *ogs
.bucket_stats
);
5774 ogs
.group_id
= group
->group_id
;
5775 calc_duration(group
->created
, now
, &ogs
.duration_sec
, &ogs
.duration_nsec
);
5777 ofputil_append_group_stats(replies
, &ogs
);
5779 free(ogs
.bucket_stats
);
5783 handle_group_request(struct ofconn
*ofconn
,
5784 const struct ofp_header
*request
, uint32_t group_id
,
5785 void (*cb
)(struct ofgroup
*, struct ovs_list
*replies
))
5787 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
5788 struct ofgroup
*group
;
5789 struct ovs_list replies
;
5791 ofpmp_init(&replies
, request
);
5792 if (group_id
== OFPG_ALL
) {
5793 ovs_rwlock_rdlock(&ofproto
->groups_rwlock
);
5794 HMAP_FOR_EACH (group
, hmap_node
, &ofproto
->groups
) {
5795 cb(group
, &replies
);
5797 ovs_rwlock_unlock(&ofproto
->groups_rwlock
);
5799 if (ofproto_group_lookup(ofproto
, group_id
, &group
)) {
5800 cb(group
, &replies
);
5801 ofproto_group_unref(group
);
5804 ofconn_send_replies(ofconn
, &replies
);
5808 handle_group_stats_request(struct ofconn
*ofconn
,
5809 const struct ofp_header
*request
)
5814 error
= ofputil_decode_group_stats_request(request
, &group_id
);
5819 handle_group_request(ofconn
, request
, group_id
, append_group_stats
);
5824 append_group_desc(struct ofgroup
*group
, struct ovs_list
*replies
)
5826 struct ofputil_group_desc gds
;
5828 gds
.group_id
= group
->group_id
;
5829 gds
.type
= group
->type
;
5830 ofputil_append_group_desc_reply(&gds
, &group
->buckets
, replies
);
5834 handle_group_desc_stats_request(struct ofconn
*ofconn
,
5835 const struct ofp_header
*request
)
5837 handle_group_request(ofconn
, request
,
5838 ofputil_decode_group_desc_request(request
),
5844 handle_group_features_stats_request(struct ofconn
*ofconn
,
5845 const struct ofp_header
*request
)
5847 struct ofproto
*p
= ofconn_get_ofproto(ofconn
);
5850 msg
= ofputil_encode_group_features_reply(&p
->ogf
, request
);
5852 ofconn_send_reply(ofconn
, msg
);
5859 handle_queue_get_config_request(struct ofconn
*ofconn
,
5860 const struct ofp_header
*oh
)
5862 struct ofproto
*p
= ofconn_get_ofproto(ofconn
);
5863 struct netdev_queue_dump queue_dump
;
5864 struct ofport
*ofport
;
5865 unsigned int queue_id
;
5866 struct ofpbuf
*reply
;
5867 struct smap details
;
5871 error
= ofputil_decode_queue_get_config_request(oh
, &request
);
5876 ofport
= ofproto_get_port(p
, request
);
5878 return OFPERR_OFPQOFC_BAD_PORT
;
5881 reply
= ofputil_encode_queue_get_config_reply(oh
);
5883 smap_init(&details
);
5884 NETDEV_QUEUE_FOR_EACH (&queue_id
, &details
, &queue_dump
, ofport
->netdev
) {
5885 struct ofputil_queue_config queue
;
5887 /* None of the existing queues have compatible properties, so we
5888 * hard-code omitting min_rate and max_rate. */
5889 queue
.queue_id
= queue_id
;
5890 queue
.min_rate
= UINT16_MAX
;
5891 queue
.max_rate
= UINT16_MAX
;
5892 ofputil_append_queue_get_config_reply(reply
, &queue
);
5894 smap_destroy(&details
);
5896 ofconn_send_reply(ofconn
, reply
);
5902 init_group(struct ofproto
*ofproto
, struct ofputil_group_mod
*gm
,
5903 struct ofgroup
**ofgroup
)
5906 const long long int now
= time_msec();
5908 if (gm
->group_id
> OFPG_MAX
) {
5909 return OFPERR_OFPGMFC_INVALID_GROUP
;
5911 if (gm
->type
> OFPGT11_FF
) {
5912 return OFPERR_OFPGMFC_BAD_TYPE
;
5915 *ofgroup
= ofproto
->ofproto_class
->group_alloc();
5917 VLOG_WARN_RL(&rl
, "%s: failed to allocate group", ofproto
->name
);
5918 return OFPERR_OFPGMFC_OUT_OF_GROUPS
;
5921 (*ofgroup
)->ofproto
= ofproto
;
5922 *CONST_CAST(uint32_t *, &((*ofgroup
)->group_id
)) = gm
->group_id
;
5923 *CONST_CAST(enum ofp11_group_type
*, &(*ofgroup
)->type
) = gm
->type
;
5924 *CONST_CAST(long long int *, &((*ofgroup
)->created
)) = now
;
5925 *CONST_CAST(long long int *, &((*ofgroup
)->modified
)) = now
;
5926 ovs_refcount_init(&(*ofgroup
)->ref_count
);
5928 list_move(&(*ofgroup
)->buckets
, &gm
->buckets
);
5929 *CONST_CAST(uint32_t *, &(*ofgroup
)->n_buckets
) =
5930 list_size(&(*ofgroup
)->buckets
);
5932 /* Construct called BEFORE any locks are held. */
5933 error
= ofproto
->ofproto_class
->group_construct(*ofgroup
);
5935 ofputil_bucket_list_destroy(&(*ofgroup
)->buckets
);
5936 ofproto
->ofproto_class
->group_dealloc(*ofgroup
);
5941 /* Implements the OFPGC11_ADD operation specified by 'gm', adding a group to
5942 * 'ofproto''s group table. Returns 0 on success or an OpenFlow error code on
5945 add_group(struct ofproto
*ofproto
, struct ofputil_group_mod
*gm
)
5947 struct ofgroup
*ofgroup
;
5950 /* Allocate new group and initialize it. */
5951 error
= init_group(ofproto
, gm
, &ofgroup
);
5956 /* We wrlock as late as possible to minimize the time we jam any other
5957 * threads: No visible state changes before acquiring the lock. */
5958 ovs_rwlock_wrlock(&ofproto
->groups_rwlock
);
5960 if (ofproto
->n_groups
[gm
->type
] >= ofproto
->ogf
.max_groups
[gm
->type
]) {
5961 error
= OFPERR_OFPGMFC_OUT_OF_GROUPS
;
5965 if (ofproto_group_exists__(ofproto
, gm
->group_id
)) {
5966 error
= OFPERR_OFPGMFC_GROUP_EXISTS
;
5971 /* Insert new group. */
5972 hmap_insert(&ofproto
->groups
, &ofgroup
->hmap_node
,
5973 hash_int(ofgroup
->group_id
, 0));
5974 ofproto
->n_groups
[ofgroup
->type
]++;
5976 ovs_rwlock_unlock(&ofproto
->groups_rwlock
);
5981 ovs_rwlock_unlock(&ofproto
->groups_rwlock
);
5982 ofproto
->ofproto_class
->group_destruct(ofgroup
);
5983 ofputil_bucket_list_destroy(&ofgroup
->buckets
);
5984 ofproto
->ofproto_class
->group_dealloc(ofgroup
);
5989 /* Adds all of the buckets from 'ofgroup' to 'new_ofgroup'. The buckets
5990 * already in 'new_ofgroup' will be placed just after the (copy of the) bucket
5991 * in 'ofgroup' with bucket ID 'command_bucket_id'. Special
5992 * 'command_bucket_id' values OFPG15_BUCKET_FIRST and OFPG15_BUCKET_LAST are
5995 copy_buckets_for_insert_bucket(const struct ofgroup
*ofgroup
,
5996 struct ofgroup
*new_ofgroup
,
5997 uint32_t command_bucket_id
)
5999 struct ofputil_bucket
*last
= NULL
;
6001 if (command_bucket_id
<= OFPG15_BUCKET_MAX
) {
6002 /* Check here to ensure that a bucket corresponding to
6003 * command_bucket_id exists in the old bucket list.
6005 * The subsequent search of below of new_ofgroup covers
6006 * both buckets in the old bucket list and buckets added
6007 * by the insert buckets group mod message this function processes. */
6008 if (!ofputil_bucket_find(&ofgroup
->buckets
, command_bucket_id
)) {
6009 return OFPERR_OFPGMFC_UNKNOWN_BUCKET
;
6012 if (!list_is_empty(&new_ofgroup
->buckets
)) {
6013 last
= ofputil_bucket_list_back(&new_ofgroup
->buckets
);
6017 ofputil_bucket_clone_list(&new_ofgroup
->buckets
, &ofgroup
->buckets
, NULL
);
6019 if (ofputil_bucket_check_duplicate_id(&ofgroup
->buckets
)) {
6020 VLOG_WARN_RL(&rl
, "Duplicate bucket id");
6021 return OFPERR_OFPGMFC_BUCKET_EXISTS
;
6024 /* Rearrange list according to command_bucket_id */
6025 if (command_bucket_id
== OFPG15_BUCKET_LAST
) {
6026 struct ofputil_bucket
*new_first
;
6027 const struct ofputil_bucket
*first
;
6029 first
= ofputil_bucket_list_front(&ofgroup
->buckets
);
6030 new_first
= ofputil_bucket_find(&new_ofgroup
->buckets
,
6033 list_splice(new_ofgroup
->buckets
.next
, &new_first
->list_node
,
6034 &new_ofgroup
->buckets
);
6035 } else if (command_bucket_id
<= OFPG15_BUCKET_MAX
&& last
) {
6036 struct ofputil_bucket
*after
;
6038 /* Presence of bucket is checked above so after should never be NULL */
6039 after
= ofputil_bucket_find(&new_ofgroup
->buckets
, command_bucket_id
);
6041 list_splice(after
->list_node
.next
, new_ofgroup
->buckets
.next
,
6042 last
->list_node
.next
);
6048 /* Appends all of the a copy of all the buckets from 'ofgroup' to 'new_ofgroup'
6049 * with the exception of the bucket whose bucket id is 'command_bucket_id'.
6050 * Special 'command_bucket_id' values OFPG15_BUCKET_FIRST, OFPG15_BUCKET_LAST
6051 * and OFPG15_BUCKET_ALL are also honored. */
6053 copy_buckets_for_remove_bucket(const struct ofgroup
*ofgroup
,
6054 struct ofgroup
*new_ofgroup
,
6055 uint32_t command_bucket_id
)
6057 const struct ofputil_bucket
*skip
= NULL
;
6059 if (command_bucket_id
== OFPG15_BUCKET_ALL
) {
6063 if (command_bucket_id
== OFPG15_BUCKET_FIRST
) {
6064 if (!list_is_empty(&ofgroup
->buckets
)) {
6065 skip
= ofputil_bucket_list_front(&ofgroup
->buckets
);
6067 } else if (command_bucket_id
== OFPG15_BUCKET_LAST
) {
6068 if (!list_is_empty(&ofgroup
->buckets
)) {
6069 skip
= ofputil_bucket_list_back(&ofgroup
->buckets
);
6072 skip
= ofputil_bucket_find(&ofgroup
->buckets
, command_bucket_id
);
6074 return OFPERR_OFPGMFC_UNKNOWN_BUCKET
;
6078 ofputil_bucket_clone_list(&new_ofgroup
->buckets
, &ofgroup
->buckets
, skip
);
6083 /* Implements OFPGC11_MODIFY, OFPGC15_INSERT_BUCKET and
6084 * OFPGC15_REMOVE_BUCKET. Returns 0 on success or an OpenFlow error code
6087 * Note that the group is re-created and then replaces the old group in
6088 * ofproto's ofgroup hash map. Thus, the group is never altered while users of
6089 * the xlate module hold a pointer to the group. */
6091 modify_group(struct ofproto
*ofproto
, struct ofputil_group_mod
*gm
)
6093 struct ofgroup
*ofgroup
, *new_ofgroup
, *retiring
;
6096 error
= init_group(ofproto
, gm
, &new_ofgroup
);
6101 retiring
= new_ofgroup
;
6103 ovs_rwlock_wrlock(&ofproto
->groups_rwlock
);
6104 if (!ofproto_group_lookup__(ofproto
, gm
->group_id
, &ofgroup
)) {
6105 error
= OFPERR_OFPGMFC_UNKNOWN_GROUP
;
6109 /* Ofproto's group write lock is held now. */
6110 if (ofgroup
->type
!= gm
->type
6111 && ofproto
->n_groups
[gm
->type
] >= ofproto
->ogf
.max_groups
[gm
->type
]) {
6112 error
= OFPERR_OFPGMFC_OUT_OF_GROUPS
;
6116 /* Manipulate bucket list for bucket commands */
6117 if (gm
->command
== OFPGC15_INSERT_BUCKET
) {
6118 error
= copy_buckets_for_insert_bucket(ofgroup
, new_ofgroup
,
6119 gm
->command_bucket_id
);
6120 } else if (gm
->command
== OFPGC15_REMOVE_BUCKET
) {
6121 error
= copy_buckets_for_remove_bucket(ofgroup
, new_ofgroup
,
6122 gm
->command_bucket_id
);
6128 /* The group creation time does not change during modification. */
6129 *CONST_CAST(long long int *, &(new_ofgroup
->created
)) = ofgroup
->created
;
6130 *CONST_CAST(long long int *, &(new_ofgroup
->modified
)) = time_msec();
6132 error
= ofproto
->ofproto_class
->group_modify(new_ofgroup
);
6138 /* Replace ofgroup in ofproto's groups hash map with new_ofgroup. */
6139 hmap_remove(&ofproto
->groups
, &ofgroup
->hmap_node
);
6140 hmap_insert(&ofproto
->groups
, &new_ofgroup
->hmap_node
,
6141 hash_int(new_ofgroup
->group_id
, 0));
6142 if (ofgroup
->type
!= new_ofgroup
->type
) {
6143 ofproto
->n_groups
[ofgroup
->type
]--;
6144 ofproto
->n_groups
[new_ofgroup
->type
]++;
6148 ofproto_group_unref(retiring
);
6149 ovs_rwlock_unlock(&ofproto
->groups_rwlock
);
6154 delete_group__(struct ofproto
*ofproto
, struct ofgroup
*ofgroup
)
6155 OVS_RELEASES(ofproto
->groups_rwlock
)
6158 struct ofputil_flow_mod fm
;
6160 /* Delete all flow entries containing this group in a group action */
6161 match_init_catchall(&match
);
6162 flow_mod_init(&fm
, &match
, 0, NULL
, 0, OFPFC_DELETE
);
6163 fm
.delete_reason
= OFPRR_GROUP_DELETE
;
6164 fm
.out_group
= ofgroup
->group_id
;
6165 handle_flow_mod__(ofproto
, &fm
, NULL
);
6167 hmap_remove(&ofproto
->groups
, &ofgroup
->hmap_node
);
6168 /* No-one can find this group any more. */
6169 ofproto
->n_groups
[ofgroup
->type
]--;
6170 ovs_rwlock_unlock(&ofproto
->groups_rwlock
);
6171 ofproto_group_unref(ofgroup
);
6174 /* Implements OFPGC11_DELETE. */
6176 delete_group(struct ofproto
*ofproto
, uint32_t group_id
)
6178 struct ofgroup
*ofgroup
;
6180 ovs_rwlock_wrlock(&ofproto
->groups_rwlock
);
6181 if (group_id
== OFPG_ALL
) {
6183 struct hmap_node
*node
= hmap_first(&ofproto
->groups
);
6187 ofgroup
= CONTAINER_OF(node
, struct ofgroup
, hmap_node
);
6188 delete_group__(ofproto
, ofgroup
);
6189 /* Lock for each node separately, so that we will not jam the
6190 * other threads for too long time. */
6191 ovs_rwlock_wrlock(&ofproto
->groups_rwlock
);
6194 HMAP_FOR_EACH_IN_BUCKET (ofgroup
, hmap_node
,
6195 hash_int(group_id
, 0), &ofproto
->groups
) {
6196 if (ofgroup
->group_id
== group_id
) {
6197 delete_group__(ofproto
, ofgroup
);
6202 ovs_rwlock_unlock(&ofproto
->groups_rwlock
);
6206 handle_group_mod(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
6208 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
6209 struct ofputil_group_mod gm
;
6212 error
= reject_slave_controller(ofconn
);
6217 error
= ofputil_decode_group_mod(oh
, &gm
);
6222 switch (gm
.command
) {
6224 return add_group(ofproto
, &gm
);
6226 case OFPGC11_MODIFY
:
6227 return modify_group(ofproto
, &gm
);
6229 case OFPGC11_DELETE
:
6230 delete_group(ofproto
, gm
.group_id
);
6233 case OFPGC15_INSERT_BUCKET
:
6234 return modify_group(ofproto
, &gm
);
6236 case OFPGC15_REMOVE_BUCKET
:
6237 return modify_group(ofproto
, &gm
);
6240 if (gm
.command
> OFPGC11_DELETE
) {
6241 VLOG_WARN_RL(&rl
, "%s: Invalid group_mod command type %d",
6242 ofproto
->name
, gm
.command
);
6244 return OFPERR_OFPGMFC_BAD_COMMAND
;
6248 enum ofputil_table_miss
6249 ofproto_table_get_miss_config(const struct ofproto
*ofproto
, uint8_t table_id
)
6251 enum ofputil_table_miss value
;
6253 atomic_read_relaxed(&ofproto
->tables
[table_id
].miss_config
, &value
);
6258 table_mod(struct ofproto
*ofproto
, const struct ofputil_table_mod
*tm
)
6260 if (!check_table_id(ofproto
, tm
->table_id
)) {
6261 return OFPERR_OFPTMFC_BAD_TABLE
;
6262 } else if (tm
->miss_config
!= OFPUTIL_TABLE_MISS_DEFAULT
) {
6263 if (tm
->table_id
== OFPTT_ALL
) {
6265 for (i
= 0; i
< ofproto
->n_tables
; i
++) {
6266 atomic_store_relaxed(&ofproto
->tables
[i
].miss_config
,
6270 atomic_store_relaxed(&ofproto
->tables
[tm
->table_id
].miss_config
,
6278 handle_table_mod(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
6280 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
6281 struct ofputil_table_mod tm
;
6284 error
= reject_slave_controller(ofconn
);
6289 error
= ofputil_decode_table_mod(oh
, &tm
);
6294 return table_mod(ofproto
, &tm
);
6298 handle_bundle_control(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
6301 struct ofputil_bundle_ctrl_msg bctrl
;
6303 struct ofputil_bundle_ctrl_msg reply
;
6305 error
= reject_slave_controller(ofconn
);
6310 error
= ofputil_decode_bundle_ctrl(oh
, &bctrl
);
6315 reply
.bundle_id
= bctrl
.bundle_id
;
6317 switch (bctrl
.type
) {
6318 case OFPBCT_OPEN_REQUEST
:
6319 error
= ofp_bundle_open(ofconn
, bctrl
.bundle_id
, bctrl
.flags
);
6320 reply
.type
= OFPBCT_OPEN_REPLY
;
6322 case OFPBCT_CLOSE_REQUEST
:
6323 error
= ofp_bundle_close(ofconn
, bctrl
.bundle_id
, bctrl
.flags
);
6324 reply
.type
= OFPBCT_CLOSE_REPLY
;;
6326 case OFPBCT_COMMIT_REQUEST
:
6327 error
= ofp_bundle_commit(ofconn
, bctrl
.bundle_id
, bctrl
.flags
);
6328 reply
.type
= OFPBCT_COMMIT_REPLY
;
6330 case OFPBCT_DISCARD_REQUEST
:
6331 error
= ofp_bundle_discard(ofconn
, bctrl
.bundle_id
);
6332 reply
.type
= OFPBCT_DISCARD_REPLY
;
6335 case OFPBCT_OPEN_REPLY
:
6336 case OFPBCT_CLOSE_REPLY
:
6337 case OFPBCT_COMMIT_REPLY
:
6338 case OFPBCT_DISCARD_REPLY
:
6339 return OFPERR_OFPBFC_BAD_TYPE
;
6344 buf
= ofputil_encode_bundle_ctrl_reply(oh
, &reply
);
6345 ofconn_send_reply(ofconn
, buf
);
6352 handle_bundle_add(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
6355 struct ofputil_bundle_add_msg badd
;
6357 error
= reject_slave_controller(ofconn
);
6362 error
= ofputil_decode_bundle_add(oh
, &badd
);
6367 return ofp_bundle_add_message(ofconn
, &badd
);
6371 handle_openflow__(struct ofconn
*ofconn
, const struct ofpbuf
*msg
)
6372 OVS_EXCLUDED(ofproto_mutex
)
6374 const struct ofp_header
*oh
= msg
->data
;
6378 error
= ofptype_decode(&type
, oh
);
6382 if (oh
->version
>= OFP13_VERSION
&& ofpmsg_is_stat_request(oh
)
6383 && ofpmp_more(oh
)) {
6384 /* We have no buffer implementation for multipart requests.
6385 * Report overflow for requests which consists of multiple
6387 return OFPERR_OFPBRC_MULTIPART_BUFFER_OVERFLOW
;
6391 /* OpenFlow requests. */
6392 case OFPTYPE_ECHO_REQUEST
:
6393 return handle_echo_request(ofconn
, oh
);
6395 case OFPTYPE_FEATURES_REQUEST
:
6396 return handle_features_request(ofconn
, oh
);
6398 case OFPTYPE_GET_CONFIG_REQUEST
:
6399 return handle_get_config_request(ofconn
, oh
);
6401 case OFPTYPE_SET_CONFIG
:
6402 return handle_set_config(ofconn
, oh
);
6404 case OFPTYPE_PACKET_OUT
:
6405 return handle_packet_out(ofconn
, oh
);
6407 case OFPTYPE_PORT_MOD
:
6408 return handle_port_mod(ofconn
, oh
);
6410 case OFPTYPE_FLOW_MOD
:
6411 return handle_flow_mod(ofconn
, oh
);
6413 case OFPTYPE_GROUP_MOD
:
6414 return handle_group_mod(ofconn
, oh
);
6416 case OFPTYPE_TABLE_MOD
:
6417 return handle_table_mod(ofconn
, oh
);
6419 case OFPTYPE_METER_MOD
:
6420 return handle_meter_mod(ofconn
, oh
);
6422 case OFPTYPE_BARRIER_REQUEST
:
6423 return handle_barrier_request(ofconn
, oh
);
6425 case OFPTYPE_ROLE_REQUEST
:
6426 return handle_role_request(ofconn
, oh
);
6428 /* OpenFlow replies. */
6429 case OFPTYPE_ECHO_REPLY
:
6432 /* Nicira extension requests. */
6433 case OFPTYPE_FLOW_MOD_TABLE_ID
:
6434 return handle_nxt_flow_mod_table_id(ofconn
, oh
);
6436 case OFPTYPE_SET_FLOW_FORMAT
:
6437 return handle_nxt_set_flow_format(ofconn
, oh
);
6439 case OFPTYPE_SET_PACKET_IN_FORMAT
:
6440 return handle_nxt_set_packet_in_format(ofconn
, oh
);
6442 case OFPTYPE_SET_CONTROLLER_ID
:
6443 return handle_nxt_set_controller_id(ofconn
, oh
);
6445 case OFPTYPE_FLOW_AGE
:
6446 /* Nothing to do. */
6449 case OFPTYPE_FLOW_MONITOR_CANCEL
:
6450 return handle_flow_monitor_cancel(ofconn
, oh
);
6452 case OFPTYPE_SET_ASYNC_CONFIG
:
6453 return handle_nxt_set_async_config(ofconn
, oh
);
6455 case OFPTYPE_GET_ASYNC_REQUEST
:
6456 return handle_nxt_get_async_request(ofconn
, oh
);
6458 /* Statistics requests. */
6459 case OFPTYPE_DESC_STATS_REQUEST
:
6460 return handle_desc_stats_request(ofconn
, oh
);
6462 case OFPTYPE_FLOW_STATS_REQUEST
:
6463 return handle_flow_stats_request(ofconn
, oh
);
6465 case OFPTYPE_AGGREGATE_STATS_REQUEST
:
6466 return handle_aggregate_stats_request(ofconn
, oh
);
6468 case OFPTYPE_TABLE_STATS_REQUEST
:
6469 return handle_table_stats_request(ofconn
, oh
);
6471 case OFPTYPE_TABLE_FEATURES_STATS_REQUEST
:
6472 return handle_table_features_request(ofconn
, oh
);
6474 case OFPTYPE_PORT_STATS_REQUEST
:
6475 return handle_port_stats_request(ofconn
, oh
);
6477 case OFPTYPE_QUEUE_STATS_REQUEST
:
6478 return handle_queue_stats_request(ofconn
, oh
);
6480 case OFPTYPE_PORT_DESC_STATS_REQUEST
:
6481 return handle_port_desc_stats_request(ofconn
, oh
);
6483 case OFPTYPE_FLOW_MONITOR_STATS_REQUEST
:
6484 return handle_flow_monitor_request(ofconn
, oh
);
6486 case OFPTYPE_METER_STATS_REQUEST
:
6487 case OFPTYPE_METER_CONFIG_STATS_REQUEST
:
6488 return handle_meter_request(ofconn
, oh
, type
);
6490 case OFPTYPE_METER_FEATURES_STATS_REQUEST
:
6491 return handle_meter_features_request(ofconn
, oh
);
6493 case OFPTYPE_GROUP_STATS_REQUEST
:
6494 return handle_group_stats_request(ofconn
, oh
);
6496 case OFPTYPE_GROUP_DESC_STATS_REQUEST
:
6497 return handle_group_desc_stats_request(ofconn
, oh
);
6499 case OFPTYPE_GROUP_FEATURES_STATS_REQUEST
:
6500 return handle_group_features_stats_request(ofconn
, oh
);
6502 case OFPTYPE_QUEUE_GET_CONFIG_REQUEST
:
6503 return handle_queue_get_config_request(ofconn
, oh
);
6505 case OFPTYPE_BUNDLE_CONTROL
:
6506 return handle_bundle_control(ofconn
, oh
);
6508 case OFPTYPE_BUNDLE_ADD_MESSAGE
:
6509 return handle_bundle_add(ofconn
, oh
);
6513 case OFPTYPE_FEATURES_REPLY
:
6514 case OFPTYPE_GET_CONFIG_REPLY
:
6515 case OFPTYPE_PACKET_IN
:
6516 case OFPTYPE_FLOW_REMOVED
:
6517 case OFPTYPE_PORT_STATUS
:
6518 case OFPTYPE_BARRIER_REPLY
:
6519 case OFPTYPE_QUEUE_GET_CONFIG_REPLY
:
6520 case OFPTYPE_DESC_STATS_REPLY
:
6521 case OFPTYPE_FLOW_STATS_REPLY
:
6522 case OFPTYPE_QUEUE_STATS_REPLY
:
6523 case OFPTYPE_PORT_STATS_REPLY
:
6524 case OFPTYPE_TABLE_STATS_REPLY
:
6525 case OFPTYPE_AGGREGATE_STATS_REPLY
:
6526 case OFPTYPE_PORT_DESC_STATS_REPLY
:
6527 case OFPTYPE_ROLE_REPLY
:
6528 case OFPTYPE_FLOW_MONITOR_PAUSED
:
6529 case OFPTYPE_FLOW_MONITOR_RESUMED
:
6530 case OFPTYPE_FLOW_MONITOR_STATS_REPLY
:
6531 case OFPTYPE_GET_ASYNC_REPLY
:
6532 case OFPTYPE_GROUP_STATS_REPLY
:
6533 case OFPTYPE_GROUP_DESC_STATS_REPLY
:
6534 case OFPTYPE_GROUP_FEATURES_STATS_REPLY
:
6535 case OFPTYPE_METER_STATS_REPLY
:
6536 case OFPTYPE_METER_CONFIG_STATS_REPLY
:
6537 case OFPTYPE_METER_FEATURES_STATS_REPLY
:
6538 case OFPTYPE_TABLE_FEATURES_STATS_REPLY
:
6539 case OFPTYPE_ROLE_STATUS
:
6541 if (ofpmsg_is_stat_request(oh
)) {
6542 return OFPERR_OFPBRC_BAD_STAT
;
6544 return OFPERR_OFPBRC_BAD_TYPE
;
6550 handle_openflow(struct ofconn
*ofconn
, const struct ofpbuf
*ofp_msg
)
6551 OVS_EXCLUDED(ofproto_mutex
)
6553 int error
= handle_openflow__(ofconn
, ofp_msg
);
6555 ofconn_send_error(ofconn
, ofp_msg
->data
, error
);
6557 COVERAGE_INC(ofproto_recv_openflow
);
6560 /* Asynchronous operations. */
6563 send_buffered_packet(struct ofconn
*ofconn
, uint32_t buffer_id
,
6565 OVS_REQUIRES(ofproto_mutex
)
6567 enum ofperr error
= 0;
6568 if (ofconn
&& buffer_id
!= UINT32_MAX
) {
6569 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
6570 struct dp_packet
*packet
;
6573 error
= ofconn_pktbuf_retrieve(ofconn
, buffer_id
, &packet
, &in_port
);
6575 struct rule_execute
*re
;
6577 ofproto_rule_ref(rule
);
6579 re
= xmalloc(sizeof *re
);
6581 re
->in_port
= in_port
;
6582 re
->packet
= packet
;
6584 if (!guarded_list_push_back(&ofproto
->rule_executes
,
6585 &re
->list_node
, 1024)) {
6586 ofproto_rule_unref(rule
);
6587 dp_packet_delete(re
->packet
);
6596 pick_datapath_id(const struct ofproto
*ofproto
)
6598 const struct ofport
*port
;
6600 port
= ofproto_get_port(ofproto
, OFPP_LOCAL
);
6602 uint8_t ea
[ETH_ADDR_LEN
];
6605 error
= netdev_get_etheraddr(port
->netdev
, ea
);
6607 return eth_addr_to_uint64(ea
);
6609 VLOG_WARN("%s: could not get MAC address for %s (%s)",
6610 ofproto
->name
, netdev_get_name(port
->netdev
),
6611 ovs_strerror(error
));
6613 return ofproto
->fallback_dpid
;
6617 pick_fallback_dpid(void)
6619 uint8_t ea
[ETH_ADDR_LEN
];
6620 eth_addr_nicira_random(ea
);
6621 return eth_addr_to_uint64(ea
);
6624 /* Table overflow policy. */
6626 /* Chooses and updates 'rulep' with a rule to evict from 'table'. Sets 'rulep'
6627 * to NULL if the table is not configured to evict rules or if the table
6628 * contains no evictable rules. (Rules with a readlock on their evict rwlock,
6629 * or with no timeouts are not evictable.) */
6631 choose_rule_to_evict(struct oftable
*table
, struct rule
**rulep
)
6632 OVS_REQUIRES(ofproto_mutex
)
6634 struct eviction_group
*evg
;
6637 if (!table
->eviction_fields
) {
6641 /* In the common case, the outer and inner loops here will each be entered
6644 * - The inner loop normally "return"s in its first iteration. If the
6645 * eviction group has any evictable rules, then it always returns in
6648 * - The outer loop only iterates more than once if the largest eviction
6649 * group has no evictable rules.
6651 * - The outer loop can exit only if table's 'max_flows' is all filled up
6652 * by unevictable rules. */
6653 HEAP_FOR_EACH (evg
, size_node
, &table
->eviction_groups_by_size
) {
6656 HEAP_FOR_EACH (rule
, evg_node
, &evg
->rules
) {
6665 /* Eviction groups. */
6667 /* Returns the priority to use for an eviction_group that contains 'n_rules'
6668 * rules. The priority contains low-order random bits to ensure that eviction
6669 * groups with the same number of rules are prioritized randomly. */
6671 eviction_group_priority(size_t n_rules
)
6673 uint16_t size
= MIN(UINT16_MAX
, n_rules
);
6674 return (size
<< 16) | random_uint16();
6677 /* Updates 'evg', an eviction_group within 'table', following a change that
6678 * adds or removes rules in 'evg'. */
6680 eviction_group_resized(struct oftable
*table
, struct eviction_group
*evg
)
6681 OVS_REQUIRES(ofproto_mutex
)
6683 heap_change(&table
->eviction_groups_by_size
, &evg
->size_node
,
6684 eviction_group_priority(heap_count(&evg
->rules
)));
6687 /* Destroys 'evg', an eviction_group within 'table':
6689 * - Removes all the rules, if any, from 'evg'. (It doesn't destroy the
6690 * rules themselves, just removes them from the eviction group.)
6692 * - Removes 'evg' from 'table'.
6696 eviction_group_destroy(struct oftable
*table
, struct eviction_group
*evg
)
6697 OVS_REQUIRES(ofproto_mutex
)
6699 while (!heap_is_empty(&evg
->rules
)) {
6702 rule
= CONTAINER_OF(heap_pop(&evg
->rules
), struct rule
, evg_node
);
6703 rule
->eviction_group
= NULL
;
6705 hmap_remove(&table
->eviction_groups_by_id
, &evg
->id_node
);
6706 heap_remove(&table
->eviction_groups_by_size
, &evg
->size_node
);
6707 heap_destroy(&evg
->rules
);
6711 /* Removes 'rule' from its eviction group, if any. */
6713 eviction_group_remove_rule(struct rule
*rule
)
6714 OVS_REQUIRES(ofproto_mutex
)
6716 if (rule
->eviction_group
) {
6717 struct oftable
*table
= &rule
->ofproto
->tables
[rule
->table_id
];
6718 struct eviction_group
*evg
= rule
->eviction_group
;
6720 rule
->eviction_group
= NULL
;
6721 heap_remove(&evg
->rules
, &rule
->evg_node
);
6722 if (heap_is_empty(&evg
->rules
)) {
6723 eviction_group_destroy(table
, evg
);
6725 eviction_group_resized(table
, evg
);
6730 /* Hashes the 'rule''s values for the eviction_fields of 'rule''s table, and
6731 * returns the hash value. */
6733 eviction_group_hash_rule(struct rule
*rule
)
6734 OVS_REQUIRES(ofproto_mutex
)
6736 struct oftable
*table
= &rule
->ofproto
->tables
[rule
->table_id
];
6737 const struct mf_subfield
*sf
;
6741 hash
= table
->eviction_group_id_basis
;
6742 miniflow_expand(&rule
->cr
.match
.flow
, &flow
);
6743 for (sf
= table
->eviction_fields
;
6744 sf
< &table
->eviction_fields
[table
->n_eviction_fields
];
6747 if (mf_are_prereqs_ok(sf
->field
, &flow
)) {
6748 union mf_value value
;
6750 mf_get_value(sf
->field
, &flow
, &value
);
6752 bitwise_zero(&value
, sf
->field
->n_bytes
, 0, sf
->ofs
);
6754 if (sf
->ofs
+ sf
->n_bits
< sf
->field
->n_bytes
* 8) {
6755 unsigned int start
= sf
->ofs
+ sf
->n_bits
;
6756 bitwise_zero(&value
, sf
->field
->n_bytes
, start
,
6757 sf
->field
->n_bytes
* 8 - start
);
6759 hash
= hash_bytes(&value
, sf
->field
->n_bytes
, hash
);
6761 hash
= hash_int(hash
, 0);
6768 /* Returns an eviction group within 'table' with the given 'id', creating one
6770 static struct eviction_group
*
6771 eviction_group_find(struct oftable
*table
, uint32_t id
)
6772 OVS_REQUIRES(ofproto_mutex
)
6774 struct eviction_group
*evg
;
6776 HMAP_FOR_EACH_WITH_HASH (evg
, id_node
, id
, &table
->eviction_groups_by_id
) {
6780 evg
= xmalloc(sizeof *evg
);
6781 hmap_insert(&table
->eviction_groups_by_id
, &evg
->id_node
, id
);
6782 heap_insert(&table
->eviction_groups_by_size
, &evg
->size_node
,
6783 eviction_group_priority(0));
6784 heap_init(&evg
->rules
);
6789 /* Returns an eviction priority for 'rule'. The return value should be
6790 * interpreted so that higher priorities make a rule more attractive candidates
6792 * Called only if have a timeout. */
6794 rule_eviction_priority(struct ofproto
*ofproto
, struct rule
*rule
)
6795 OVS_REQUIRES(ofproto_mutex
)
6797 long long int expiration
= LLONG_MAX
;
6798 long long int modified
;
6799 uint32_t expiration_offset
;
6801 /* 'modified' needs protection even when we hold 'ofproto_mutex'. */
6802 ovs_mutex_lock(&rule
->mutex
);
6803 modified
= rule
->modified
;
6804 ovs_mutex_unlock(&rule
->mutex
);
6806 if (rule
->hard_timeout
) {
6807 expiration
= modified
+ rule
->hard_timeout
* 1000;
6809 if (rule
->idle_timeout
) {
6810 uint64_t packets
, bytes
;
6812 long long int idle_expiration
;
6814 ofproto
->ofproto_class
->rule_get_stats(rule
, &packets
, &bytes
, &used
);
6815 idle_expiration
= used
+ rule
->idle_timeout
* 1000;
6816 expiration
= MIN(expiration
, idle_expiration
);
6819 if (expiration
== LLONG_MAX
) {
6823 /* Calculate the time of expiration as a number of (approximate) seconds
6824 * after program startup.
6826 * This should work OK for program runs that last UINT32_MAX seconds or
6827 * less. Therefore, please restart OVS at least once every 136 years. */
6828 expiration_offset
= (expiration
>> 10) - (time_boot_msec() >> 10);
6830 /* Invert the expiration offset because we're using a max-heap. */
6831 return UINT32_MAX
- expiration_offset
;
6834 /* Adds 'rule' to an appropriate eviction group for its oftable's
6835 * configuration. Does nothing if 'rule''s oftable doesn't have eviction
6836 * enabled, or if 'rule' is a permanent rule (one that will never expire on its
6839 * The caller must ensure that 'rule' is not already in an eviction group. */
6841 eviction_group_add_rule(struct rule
*rule
)
6842 OVS_REQUIRES(ofproto_mutex
)
6844 struct ofproto
*ofproto
= rule
->ofproto
;
6845 struct oftable
*table
= &ofproto
->tables
[rule
->table_id
];
6848 /* Timeouts may be modified only when holding 'ofproto_mutex'. We have it
6849 * so no additional protection is needed. */
6850 has_timeout
= rule
->hard_timeout
|| rule
->idle_timeout
;
6852 if (table
->eviction_fields
&& has_timeout
) {
6853 struct eviction_group
*evg
;
6855 evg
= eviction_group_find(table
, eviction_group_hash_rule(rule
));
6857 rule
->eviction_group
= evg
;
6858 heap_insert(&evg
->rules
, &rule
->evg_node
,
6859 rule_eviction_priority(ofproto
, rule
));
6860 eviction_group_resized(table
, evg
);
6866 /* Initializes 'table'. */
6868 oftable_init(struct oftable
*table
)
6870 memset(table
, 0, sizeof *table
);
6871 classifier_init(&table
->cls
, flow_segment_u64s
);
6872 table
->max_flows
= UINT_MAX
;
6873 atomic_init(&table
->miss_config
, OFPUTIL_TABLE_MISS_DEFAULT
);
6875 classifier_set_prefix_fields(&table
->cls
, default_prefix_fields
,
6876 ARRAY_SIZE(default_prefix_fields
));
6878 atomic_init(&table
->n_matched
, 0);
6879 atomic_init(&table
->n_missed
, 0);
6882 /* Destroys 'table', including its classifier and eviction groups.
6884 * The caller is responsible for freeing 'table' itself. */
6886 oftable_destroy(struct oftable
*table
)
6888 ovs_assert(classifier_is_empty(&table
->cls
));
6889 oftable_disable_eviction(table
);
6890 classifier_destroy(&table
->cls
);
6894 /* Changes the name of 'table' to 'name'. If 'name' is NULL or the empty
6895 * string, then 'table' will use its default name.
6897 * This only affects the name exposed for a table exposed through the OpenFlow
6898 * OFPST_TABLE (as printed by "ovs-ofctl dump-tables"). */
6900 oftable_set_name(struct oftable
*table
, const char *name
)
6902 if (name
&& name
[0]) {
6903 int len
= strnlen(name
, OFP_MAX_TABLE_NAME_LEN
);
6904 if (!table
->name
|| strncmp(name
, table
->name
, len
)) {
6906 table
->name
= xmemdup0(name
, len
);
6914 /* oftables support a choice of two policies when adding a rule would cause the
6915 * number of flows in the table to exceed the configured maximum number: either
6916 * they can refuse to add the new flow or they can evict some existing flow.
6917 * This function configures the former policy on 'table'. */
6919 oftable_disable_eviction(struct oftable
*table
)
6920 OVS_REQUIRES(ofproto_mutex
)
6922 if (table
->eviction_fields
) {
6923 struct eviction_group
*evg
, *next
;
6925 HMAP_FOR_EACH_SAFE (evg
, next
, id_node
,
6926 &table
->eviction_groups_by_id
) {
6927 eviction_group_destroy(table
, evg
);
6929 hmap_destroy(&table
->eviction_groups_by_id
);
6930 heap_destroy(&table
->eviction_groups_by_size
);
6932 free(table
->eviction_fields
);
6933 table
->eviction_fields
= NULL
;
6934 table
->n_eviction_fields
= 0;
6938 /* oftables support a choice of two policies when adding a rule would cause the
6939 * number of flows in the table to exceed the configured maximum number: either
6940 * they can refuse to add the new flow or they can evict some existing flow.
6941 * This function configures the latter policy on 'table', with fairness based
6942 * on the values of the 'n_fields' fields specified in 'fields'. (Specifying
6943 * 'n_fields' as 0 disables fairness.) */
6945 oftable_enable_eviction(struct oftable
*table
,
6946 const struct mf_subfield
*fields
, size_t n_fields
)
6947 OVS_REQUIRES(ofproto_mutex
)
6951 if (table
->eviction_fields
6952 && n_fields
== table
->n_eviction_fields
6954 || !memcmp(fields
, table
->eviction_fields
,
6955 n_fields
* sizeof *fields
))) {
6960 oftable_disable_eviction(table
);
6962 table
->n_eviction_fields
= n_fields
;
6963 table
->eviction_fields
= xmemdup(fields
, n_fields
* sizeof *fields
);
6965 table
->eviction_group_id_basis
= random_uint32();
6966 hmap_init(&table
->eviction_groups_by_id
);
6967 heap_init(&table
->eviction_groups_by_size
);
6969 CLS_FOR_EACH (rule
, cr
, &table
->cls
) {
6970 eviction_group_add_rule(rule
);
6974 /* Removes 'rule' from the ofproto data structures AFTER caller has removed
6975 * it from the classifier. */
6977 ofproto_rule_remove__(struct ofproto
*ofproto
, struct rule
*rule
)
6978 OVS_REQUIRES(ofproto_mutex
)
6980 cookies_remove(ofproto
, rule
);
6982 eviction_group_remove_rule(rule
);
6983 if (!list_is_empty(&rule
->expirable
)) {
6984 list_remove(&rule
->expirable
);
6986 if (!list_is_empty(&rule
->meter_list_node
)) {
6987 list_remove(&rule
->meter_list_node
);
6988 list_init(&rule
->meter_list_node
);
6993 oftable_remove_rule(struct rule
*rule
)
6994 OVS_REQUIRES(ofproto_mutex
)
6996 struct classifier
*cls
= &rule
->ofproto
->tables
[rule
->table_id
].cls
;
6998 if (classifier_remove(cls
, &rule
->cr
)) {
6999 ofproto_rule_remove__(rule
->ofproto
, rule
);
7003 /* unixctl commands. */
7006 ofproto_lookup(const char *name
)
7008 struct ofproto
*ofproto
;
7010 HMAP_FOR_EACH_WITH_HASH (ofproto
, hmap_node
, hash_string(name
, 0),
7012 if (!strcmp(ofproto
->name
, name
)) {
7020 ofproto_unixctl_list(struct unixctl_conn
*conn
, int argc OVS_UNUSED
,
7021 const char *argv
[] OVS_UNUSED
, void *aux OVS_UNUSED
)
7023 struct ofproto
*ofproto
;
7027 HMAP_FOR_EACH (ofproto
, hmap_node
, &all_ofprotos
) {
7028 ds_put_format(&results
, "%s\n", ofproto
->name
);
7030 unixctl_command_reply(conn
, ds_cstr(&results
));
7031 ds_destroy(&results
);
7035 ofproto_unixctl_init(void)
7037 static bool registered
;
7043 unixctl_command_register("ofproto/list", "", 0, 0,
7044 ofproto_unixctl_list
, NULL
);
7047 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
7049 * This is deprecated. It is only for compatibility with broken device drivers
7050 * in old versions of Linux that do not properly support VLANs when VLAN
7051 * devices are not used. When broken device drivers are no longer in
7052 * widespread use, we will delete these interfaces. */
7054 /* Sets a 1-bit in the 4096-bit 'vlan_bitmap' for each VLAN ID that is matched
7055 * (exactly) by an OpenFlow rule in 'ofproto'. */
7057 ofproto_get_vlan_usage(struct ofproto
*ofproto
, unsigned long int *vlan_bitmap
)
7060 struct cls_rule target
;
7061 const struct oftable
*oftable
;
7063 match_init_catchall(&match
);
7064 match_set_vlan_vid_masked(&match
, htons(VLAN_CFI
), htons(VLAN_CFI
));
7065 cls_rule_init(&target
, &match
, 0);
7067 free(ofproto
->vlan_bitmap
);
7068 ofproto
->vlan_bitmap
= bitmap_allocate(4096);
7069 ofproto
->vlans_changed
= false;
7071 OFPROTO_FOR_EACH_TABLE (oftable
, ofproto
) {
7074 CLS_FOR_EACH_TARGET (rule
, cr
, &oftable
->cls
, &target
) {
7075 if (minimask_get_vid_mask(&rule
->cr
.match
.mask
) == VLAN_VID_MASK
) {
7076 uint16_t vid
= miniflow_get_vid(&rule
->cr
.match
.flow
);
7078 bitmap_set1(vlan_bitmap
, vid
);
7079 bitmap_set1(ofproto
->vlan_bitmap
, vid
);
7084 cls_rule_destroy(&target
);
7087 /* Returns true if new VLANs have come into use by the flow table since the
7088 * last call to ofproto_get_vlan_usage().
7090 * We don't track when old VLANs stop being used. */
7092 ofproto_has_vlan_usage_changed(const struct ofproto
*ofproto
)
7094 return ofproto
->vlans_changed
;
7097 /* Configures a VLAN splinter binding between the ports identified by OpenFlow
7098 * port numbers 'vlandev_ofp_port' and 'realdev_ofp_port'. If
7099 * 'realdev_ofp_port' is nonzero, then the VLAN device is enslaved to the real
7100 * device as a VLAN splinter for VLAN ID 'vid'. If 'realdev_ofp_port' is zero,
7101 * then the VLAN device is un-enslaved. */
7103 ofproto_port_set_realdev(struct ofproto
*ofproto
, ofp_port_t vlandev_ofp_port
,
7104 ofp_port_t realdev_ofp_port
, int vid
)
7106 struct ofport
*ofport
;
7109 ovs_assert(vlandev_ofp_port
!= realdev_ofp_port
);
7111 ofport
= ofproto_get_port(ofproto
, vlandev_ofp_port
);
7113 VLOG_WARN("%s: cannot set realdev on nonexistent port %"PRIu16
,
7114 ofproto
->name
, vlandev_ofp_port
);
7118 if (!ofproto
->ofproto_class
->set_realdev
) {
7119 if (!vlandev_ofp_port
) {
7122 VLOG_WARN("%s: vlan splinters not supported", ofproto
->name
);
7126 error
= ofproto
->ofproto_class
->set_realdev(ofport
, realdev_ofp_port
, vid
);
7128 VLOG_WARN("%s: setting realdev on port %"PRIu16
" (%s) failed (%s)",
7129 ofproto
->name
, vlandev_ofp_port
,
7130 netdev_get_name(ofport
->netdev
), ovs_strerror(error
));