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_insert__(struct ofproto
*, struct rule
*)
240 OVS_REQUIRES(ofproto_mutex
);
241 static void ofproto_rule_remove__(struct ofproto
*, struct rule
*)
242 OVS_REQUIRES(ofproto_mutex
);
244 /* The source of a flow_mod request, in the code that processes flow_mods.
246 * A flow table modification request can be generated externally, via OpenFlow,
247 * or internally through a function call. This structure indicates the source
248 * of an OpenFlow-generated flow_mod. For an internal flow_mod, it isn't
249 * meaningful and thus supplied as NULL. */
250 struct flow_mod_requester
{
251 struct ofconn
*ofconn
; /* Connection on which flow_mod arrived. */
252 const struct ofp_header
*request
;
256 static enum ofperr
add_flow(struct ofproto
*, struct ofputil_flow_mod
*,
257 const struct flow_mod_requester
*);
259 static enum ofperr
modify_flow_check__(struct ofproto
*,
260 struct ofputil_flow_mod
*,
262 OVS_REQUIRES(ofproto_mutex
);
263 static void modify_flow__(struct ofproto
*, struct ofputil_flow_mod
*,
264 struct rule
*, const struct flow_mod_requester
*,
265 struct ovs_list
*dead_cookies
)
266 OVS_REQUIRES(ofproto_mutex
);
267 static void delete_flows__(const struct rule_collection
*,
268 enum ofp_flow_removed_reason
,
269 const struct flow_mod_requester
*)
270 OVS_REQUIRES(ofproto_mutex
);
272 static void send_buffered_packet(const struct flow_mod_requester
*,
273 uint32_t buffer_id
, struct rule
*)
274 OVS_REQUIRES(ofproto_mutex
);
276 static bool ofproto_group_exists__(const struct ofproto
*ofproto
,
278 OVS_REQ_RDLOCK(ofproto
->groups_rwlock
);
279 static bool ofproto_group_exists(const struct ofproto
*ofproto
,
281 OVS_EXCLUDED(ofproto
->groups_rwlock
);
282 static enum ofperr
add_group(struct ofproto
*, struct ofputil_group_mod
*);
283 static void handle_openflow(struct ofconn
*, const struct ofpbuf
*);
284 static enum ofperr
handle_flow_mod__(struct ofproto
*,
285 struct ofputil_flow_mod
*,
286 const struct flow_mod_requester
*)
287 OVS_EXCLUDED(ofproto_mutex
);
288 static void calc_duration(long long int start
, long long int now
,
289 uint32_t *sec
, uint32_t *nsec
);
292 static uint64_t pick_datapath_id(const struct ofproto
*);
293 static uint64_t pick_fallback_dpid(void);
294 static void ofproto_destroy__(struct ofproto
*);
295 static void update_mtu(struct ofproto
*, struct ofport
*);
296 static void meter_delete(struct ofproto
*, uint32_t first
, uint32_t last
);
297 static void meter_insert_rule(struct rule
*);
300 static void ofproto_unixctl_init(void);
302 /* All registered ofproto classes, in probe order. */
303 static const struct ofproto_class
**ofproto_classes
;
304 static size_t n_ofproto_classes
;
305 static size_t allocated_ofproto_classes
;
307 /* Global lock that protects all flow table operations. */
308 struct ovs_mutex ofproto_mutex
= OVS_MUTEX_INITIALIZER
;
310 unsigned ofproto_flow_limit
= OFPROTO_FLOW_LIMIT_DEFAULT
;
311 unsigned ofproto_max_idle
= OFPROTO_MAX_IDLE_DEFAULT
;
313 size_t n_handlers
, n_revalidators
;
317 /* Map from datapath name to struct ofproto, for use by unixctl commands. */
318 static struct hmap all_ofprotos
= HMAP_INITIALIZER(&all_ofprotos
);
320 /* Initial mappings of port to OpenFlow number mappings. */
321 static struct shash init_ofp_ports
= SHASH_INITIALIZER(&init_ofp_ports
);
323 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(1, 5);
325 /* The default value of true waits for flow restore. */
326 static bool flow_restore_wait
= true;
328 /* Must be called to initialize the ofproto library.
330 * The caller may pass in 'iface_hints', which contains an shash of
331 * "iface_hint" elements indexed by the interface's name. The provider
332 * may use these hints to describe the startup configuration in order to
333 * reinitialize its state. The caller owns the provided data, so a
334 * provider will make copies of anything required. An ofproto provider
335 * will remove any existing state that is not described by the hint, and
336 * may choose to remove it all. */
338 ofproto_init(const struct shash
*iface_hints
)
340 struct shash_node
*node
;
343 ofproto_class_register(&ofproto_dpif_class
);
345 /* Make a local copy, since we don't own 'iface_hints' elements. */
346 SHASH_FOR_EACH(node
, iface_hints
) {
347 const struct iface_hint
*orig_hint
= node
->data
;
348 struct iface_hint
*new_hint
= xmalloc(sizeof *new_hint
);
349 const char *br_type
= ofproto_normalize_type(orig_hint
->br_type
);
351 new_hint
->br_name
= xstrdup(orig_hint
->br_name
);
352 new_hint
->br_type
= xstrdup(br_type
);
353 new_hint
->ofp_port
= orig_hint
->ofp_port
;
355 shash_add(&init_ofp_ports
, node
->name
, new_hint
);
358 for (i
= 0; i
< n_ofproto_classes
; i
++) {
359 ofproto_classes
[i
]->init(&init_ofp_ports
);
363 /* 'type' should be a normalized datapath type, as returned by
364 * ofproto_normalize_type(). Returns the corresponding ofproto_class
365 * structure, or a null pointer if there is none registered for 'type'. */
366 static const struct ofproto_class
*
367 ofproto_class_find__(const char *type
)
371 for (i
= 0; i
< n_ofproto_classes
; i
++) {
372 const struct ofproto_class
*class = ofproto_classes
[i
];
377 class->enumerate_types(&types
);
378 found
= sset_contains(&types
, type
);
379 sset_destroy(&types
);
385 VLOG_WARN("unknown datapath type %s", type
);
389 /* Registers a new ofproto class. After successful registration, new ofprotos
390 * of that type can be created using ofproto_create(). */
392 ofproto_class_register(const struct ofproto_class
*new_class
)
396 for (i
= 0; i
< n_ofproto_classes
; i
++) {
397 if (ofproto_classes
[i
] == new_class
) {
402 if (n_ofproto_classes
>= allocated_ofproto_classes
) {
403 ofproto_classes
= x2nrealloc(ofproto_classes
,
404 &allocated_ofproto_classes
,
405 sizeof *ofproto_classes
);
407 ofproto_classes
[n_ofproto_classes
++] = new_class
;
411 /* Unregisters a datapath provider. 'type' must have been previously
412 * registered and not currently be in use by any ofprotos. After
413 * unregistration new datapaths of that type cannot be opened using
414 * ofproto_create(). */
416 ofproto_class_unregister(const struct ofproto_class
*class)
420 for (i
= 0; i
< n_ofproto_classes
; i
++) {
421 if (ofproto_classes
[i
] == class) {
422 for (i
++; i
< n_ofproto_classes
; i
++) {
423 ofproto_classes
[i
- 1] = ofproto_classes
[i
];
429 VLOG_WARN("attempted to unregister an ofproto class that is not "
434 /* Clears 'types' and enumerates all registered ofproto types into it. The
435 * caller must first initialize the sset. */
437 ofproto_enumerate_types(struct sset
*types
)
442 for (i
= 0; i
< n_ofproto_classes
; i
++) {
443 ofproto_classes
[i
]->enumerate_types(types
);
447 /* Returns the fully spelled out name for the given ofproto 'type'.
449 * Normalized type string can be compared with strcmp(). Unnormalized type
450 * string might be the same even if they have different spellings. */
452 ofproto_normalize_type(const char *type
)
454 return type
&& type
[0] ? type
: "system";
457 /* Clears 'names' and enumerates the names of all known created ofprotos with
458 * the given 'type'. The caller must first initialize the sset. Returns 0 if
459 * successful, otherwise a positive errno value.
461 * Some kinds of datapaths might not be practically enumerable. This is not
462 * considered an error. */
464 ofproto_enumerate_names(const char *type
, struct sset
*names
)
466 const struct ofproto_class
*class = ofproto_class_find__(type
);
467 return class ? class->enumerate_names(type
, names
) : EAFNOSUPPORT
;
471 ofproto_create(const char *datapath_name
, const char *datapath_type
,
472 struct ofproto
**ofprotop
)
474 const struct ofproto_class
*class;
475 struct ofproto
*ofproto
;
481 ofproto_unixctl_init();
483 datapath_type
= ofproto_normalize_type(datapath_type
);
484 class = ofproto_class_find__(datapath_type
);
486 VLOG_WARN("could not create datapath %s of unknown type %s",
487 datapath_name
, datapath_type
);
491 ofproto
= class->alloc();
493 VLOG_ERR("failed to allocate datapath %s of type %s",
494 datapath_name
, datapath_type
);
499 ovs_mutex_lock(&ofproto_mutex
);
500 memset(ofproto
, 0, sizeof *ofproto
);
501 ofproto
->ofproto_class
= class;
502 ofproto
->name
= xstrdup(datapath_name
);
503 ofproto
->type
= xstrdup(datapath_type
);
504 hmap_insert(&all_ofprotos
, &ofproto
->hmap_node
,
505 hash_string(ofproto
->name
, 0));
506 ofproto
->datapath_id
= 0;
507 ofproto
->forward_bpdu
= false;
508 ofproto
->fallback_dpid
= pick_fallback_dpid();
509 ofproto
->mfr_desc
= NULL
;
510 ofproto
->hw_desc
= NULL
;
511 ofproto
->sw_desc
= NULL
;
512 ofproto
->serial_desc
= NULL
;
513 ofproto
->dp_desc
= NULL
;
514 ofproto
->frag_handling
= OFPC_FRAG_NORMAL
;
515 hmap_init(&ofproto
->ports
);
516 hmap_init(&ofproto
->ofport_usage
);
517 shash_init(&ofproto
->port_by_name
);
518 simap_init(&ofproto
->ofp_requests
);
519 ofproto
->max_ports
= ofp_to_u16(OFPP_MAX
);
520 ofproto
->eviction_group_timer
= LLONG_MIN
;
521 ofproto
->tables
= NULL
;
522 ofproto
->n_tables
= 0;
523 hindex_init(&ofproto
->cookies
);
524 hmap_init(&ofproto
->learned_cookies
);
525 list_init(&ofproto
->expirable
);
526 ofproto
->connmgr
= connmgr_create(ofproto
, datapath_name
, datapath_name
);
527 guarded_list_init(&ofproto
->rule_executes
);
528 ofproto
->vlan_bitmap
= NULL
;
529 ofproto
->vlans_changed
= false;
530 ofproto
->min_mtu
= INT_MAX
;
531 ovs_rwlock_init(&ofproto
->groups_rwlock
);
532 hmap_init(&ofproto
->groups
);
533 ovs_mutex_unlock(&ofproto_mutex
);
534 ofproto
->ogf
.types
= 0xf;
535 ofproto
->ogf
.capabilities
= OFPGFC_CHAINING
| OFPGFC_SELECT_LIVENESS
|
536 OFPGFC_SELECT_WEIGHT
;
537 for (i
= 0; i
< 4; i
++) {
538 ofproto
->ogf
.max_groups
[i
] = OFPG_MAX
;
539 ofproto
->ogf
.ofpacts
[i
] = (UINT64_C(1) << N_OFPACTS
) - 1;
542 error
= ofproto
->ofproto_class
->construct(ofproto
);
544 VLOG_ERR("failed to open datapath %s: %s",
545 datapath_name
, ovs_strerror(error
));
546 connmgr_destroy(ofproto
->connmgr
);
547 ofproto_destroy__(ofproto
);
551 /* Check that hidden tables, if any, are at the end. */
552 ovs_assert(ofproto
->n_tables
);
553 for (i
= 0; i
+ 1 < ofproto
->n_tables
; i
++) {
554 enum oftable_flags flags
= ofproto
->tables
[i
].flags
;
555 enum oftable_flags next_flags
= ofproto
->tables
[i
+ 1].flags
;
557 ovs_assert(!(flags
& OFTABLE_HIDDEN
) || next_flags
& OFTABLE_HIDDEN
);
560 ofproto
->datapath_id
= pick_datapath_id(ofproto
);
563 /* Initialize meters table. */
564 if (ofproto
->ofproto_class
->meter_get_features
) {
565 ofproto
->ofproto_class
->meter_get_features(ofproto
,
566 &ofproto
->meter_features
);
568 memset(&ofproto
->meter_features
, 0, sizeof ofproto
->meter_features
);
570 ofproto
->meters
= xzalloc((ofproto
->meter_features
.max_meters
+ 1)
571 * sizeof(struct meter
*));
577 /* Must be called (only) by an ofproto implementation in its constructor
578 * function. See the large comment on 'construct' in struct ofproto_class for
581 ofproto_init_tables(struct ofproto
*ofproto
, int n_tables
)
583 struct oftable
*table
;
585 ovs_assert(!ofproto
->n_tables
);
586 ovs_assert(n_tables
>= 1 && n_tables
<= 255);
588 ofproto
->n_tables
= n_tables
;
589 ofproto
->tables
= xmalloc(n_tables
* sizeof *ofproto
->tables
);
590 OFPROTO_FOR_EACH_TABLE (table
, ofproto
) {
595 /* To be optionally called (only) by an ofproto implementation in its
596 * constructor function. See the large comment on 'construct' in struct
597 * ofproto_class for details.
599 * Sets the maximum number of ports to 'max_ports'. The ofproto generic layer
600 * will then ensure that actions passed into the ofproto implementation will
601 * not refer to OpenFlow ports numbered 'max_ports' or higher. If this
602 * function is not called, there will be no such restriction.
604 * Reserved ports numbered OFPP_MAX and higher are special and not subject to
605 * the 'max_ports' restriction. */
607 ofproto_init_max_ports(struct ofproto
*ofproto
, uint16_t max_ports
)
609 ovs_assert(max_ports
<= ofp_to_u16(OFPP_MAX
));
610 ofproto
->max_ports
= max_ports
;
614 ofproto_get_datapath_id(const struct ofproto
*ofproto
)
616 return ofproto
->datapath_id
;
620 ofproto_set_datapath_id(struct ofproto
*p
, uint64_t datapath_id
)
622 uint64_t old_dpid
= p
->datapath_id
;
623 p
->datapath_id
= datapath_id
? datapath_id
: pick_datapath_id(p
);
624 if (p
->datapath_id
!= old_dpid
) {
625 /* Force all active connections to reconnect, since there is no way to
626 * notify a controller that the datapath ID has changed. */
627 ofproto_reconnect_controllers(p
);
632 ofproto_set_controllers(struct ofproto
*p
,
633 const struct ofproto_controller
*controllers
,
634 size_t n_controllers
, uint32_t allowed_versions
)
636 connmgr_set_controllers(p
->connmgr
, controllers
, n_controllers
,
641 ofproto_set_fail_mode(struct ofproto
*p
, enum ofproto_fail_mode fail_mode
)
643 connmgr_set_fail_mode(p
->connmgr
, fail_mode
);
646 /* Drops the connections between 'ofproto' and all of its controllers, forcing
647 * them to reconnect. */
649 ofproto_reconnect_controllers(struct ofproto
*ofproto
)
651 connmgr_reconnect(ofproto
->connmgr
);
654 /* Sets the 'n' TCP port addresses in 'extras' as ones to which 'ofproto''s
655 * in-band control should guarantee access, in the same way that in-band
656 * control guarantees access to OpenFlow controllers. */
658 ofproto_set_extra_in_band_remotes(struct ofproto
*ofproto
,
659 const struct sockaddr_in
*extras
, size_t n
)
661 connmgr_set_extra_in_band_remotes(ofproto
->connmgr
, extras
, n
);
664 /* Sets the OpenFlow queue used by flows set up by in-band control on
665 * 'ofproto' to 'queue_id'. If 'queue_id' is negative, then in-band control
666 * flows will use the default queue. */
668 ofproto_set_in_band_queue(struct ofproto
*ofproto
, int queue_id
)
670 connmgr_set_in_band_queue(ofproto
->connmgr
, queue_id
);
673 /* Sets the number of flows at which eviction from the kernel flow table
676 ofproto_set_flow_limit(unsigned limit
)
678 ofproto_flow_limit
= limit
;
681 /* Sets the maximum idle time for flows in the datapath before they are
684 ofproto_set_max_idle(unsigned max_idle
)
686 ofproto_max_idle
= max_idle
;
689 /* If forward_bpdu is true, the NORMAL action will forward frames with
690 * reserved (e.g. STP) destination Ethernet addresses. if forward_bpdu is false,
691 * the NORMAL action will drop these frames. */
693 ofproto_set_forward_bpdu(struct ofproto
*ofproto
, bool forward_bpdu
)
695 bool old_val
= ofproto
->forward_bpdu
;
696 ofproto
->forward_bpdu
= forward_bpdu
;
697 if (old_val
!= ofproto
->forward_bpdu
) {
698 if (ofproto
->ofproto_class
->forward_bpdu_changed
) {
699 ofproto
->ofproto_class
->forward_bpdu_changed(ofproto
);
704 /* Sets the MAC aging timeout for the OFPP_NORMAL action on 'ofproto' to
705 * 'idle_time', in seconds, and the maximum number of MAC table entries to
708 ofproto_set_mac_table_config(struct ofproto
*ofproto
, unsigned idle_time
,
711 if (ofproto
->ofproto_class
->set_mac_table_config
) {
712 ofproto
->ofproto_class
->set_mac_table_config(ofproto
, idle_time
,
717 /* Multicast snooping configuration. */
719 /* Configures multicast snooping on 'ofproto' using the settings
720 * defined in 's'. If 's' is NULL, disables multicast snooping.
722 * Returns 0 if successful, otherwise a positive errno value. */
724 ofproto_set_mcast_snooping(struct ofproto
*ofproto
,
725 const struct ofproto_mcast_snooping_settings
*s
)
727 return (ofproto
->ofproto_class
->set_mcast_snooping
728 ? ofproto
->ofproto_class
->set_mcast_snooping(ofproto
, s
)
732 /* Configures multicast snooping flood settings on 'ofp_port' of 'ofproto'.
734 * Returns 0 if successful, otherwise a positive errno value.*/
736 ofproto_port_set_mcast_snooping(struct ofproto
*ofproto
, void *aux
,
737 const struct ofproto_mcast_snooping_port_settings
*s
)
739 return (ofproto
->ofproto_class
->set_mcast_snooping_port
740 ? ofproto
->ofproto_class
->set_mcast_snooping_port(ofproto
, aux
, s
)
745 ofproto_set_n_dpdk_rxqs(int n_rxqs
)
747 n_dpdk_rxqs
= MAX(n_rxqs
, 0);
751 ofproto_set_cpu_mask(const char *cmask
)
755 pmd_cpu_mask
= cmask
? xstrdup(cmask
) : NULL
;
759 ofproto_set_threads(int n_handlers_
, int n_revalidators_
)
761 int threads
= MAX(count_cpu_cores(), 2);
763 n_revalidators
= MAX(n_revalidators_
, 0);
764 n_handlers
= MAX(n_handlers_
, 0);
766 if (!n_revalidators
) {
767 n_revalidators
= n_handlers
768 ? MAX(threads
- (int) n_handlers
, 1)
773 n_handlers
= MAX(threads
- (int) n_revalidators
, 1);
778 ofproto_set_dp_desc(struct ofproto
*p
, const char *dp_desc
)
781 p
->dp_desc
= dp_desc
? xstrdup(dp_desc
) : NULL
;
785 ofproto_set_snoops(struct ofproto
*ofproto
, const struct sset
*snoops
)
787 return connmgr_set_snoops(ofproto
->connmgr
, snoops
);
791 ofproto_set_netflow(struct ofproto
*ofproto
,
792 const struct netflow_options
*nf_options
)
794 if (nf_options
&& sset_is_empty(&nf_options
->collectors
)) {
798 if (ofproto
->ofproto_class
->set_netflow
) {
799 return ofproto
->ofproto_class
->set_netflow(ofproto
, nf_options
);
801 return nf_options
? EOPNOTSUPP
: 0;
806 ofproto_set_sflow(struct ofproto
*ofproto
,
807 const struct ofproto_sflow_options
*oso
)
809 if (oso
&& sset_is_empty(&oso
->targets
)) {
813 if (ofproto
->ofproto_class
->set_sflow
) {
814 return ofproto
->ofproto_class
->set_sflow(ofproto
, oso
);
816 return oso
? EOPNOTSUPP
: 0;
821 ofproto_set_ipfix(struct ofproto
*ofproto
,
822 const struct ofproto_ipfix_bridge_exporter_options
*bo
,
823 const struct ofproto_ipfix_flow_exporter_options
*fo
,
826 if (ofproto
->ofproto_class
->set_ipfix
) {
827 return ofproto
->ofproto_class
->set_ipfix(ofproto
, bo
, fo
, n_fo
);
829 return (bo
|| fo
) ? EOPNOTSUPP
: 0;
834 ofproto_set_flow_restore_wait(bool flow_restore_wait_db
)
836 flow_restore_wait
= flow_restore_wait_db
;
840 ofproto_get_flow_restore_wait(void)
842 return flow_restore_wait
;
846 /* Spanning Tree Protocol (STP) configuration. */
848 /* Configures STP on 'ofproto' using the settings defined in 's'. If
849 * 's' is NULL, disables STP.
851 * Returns 0 if successful, otherwise a positive errno value. */
853 ofproto_set_stp(struct ofproto
*ofproto
,
854 const struct ofproto_stp_settings
*s
)
856 return (ofproto
->ofproto_class
->set_stp
857 ? ofproto
->ofproto_class
->set_stp(ofproto
, s
)
861 /* Retrieves STP status of 'ofproto' and stores it in 's'. If the
862 * 'enabled' member of 's' is false, then the other members are not
865 * Returns 0 if successful, otherwise a positive errno value. */
867 ofproto_get_stp_status(struct ofproto
*ofproto
,
868 struct ofproto_stp_status
*s
)
870 return (ofproto
->ofproto_class
->get_stp_status
871 ? ofproto
->ofproto_class
->get_stp_status(ofproto
, s
)
875 /* Configures STP on 'ofp_port' of 'ofproto' using the settings defined
876 * in 's'. The caller is responsible for assigning STP port numbers
877 * (using the 'port_num' member in the range of 1 through 255, inclusive)
878 * and ensuring there are no duplicates. If the 's' is NULL, then STP
879 * is disabled on the port.
881 * Returns 0 if successful, otherwise a positive errno value.*/
883 ofproto_port_set_stp(struct ofproto
*ofproto
, ofp_port_t ofp_port
,
884 const struct ofproto_port_stp_settings
*s
)
886 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
888 VLOG_WARN("%s: cannot configure STP on nonexistent port %"PRIu16
,
889 ofproto
->name
, ofp_port
);
893 return (ofproto
->ofproto_class
->set_stp_port
894 ? ofproto
->ofproto_class
->set_stp_port(ofport
, s
)
898 /* Retrieves STP port status of 'ofp_port' on 'ofproto' and stores it in
899 * 's'. If the 'enabled' member in 's' is false, then the other members
900 * are not meaningful.
902 * Returns 0 if successful, otherwise a positive errno value.*/
904 ofproto_port_get_stp_status(struct ofproto
*ofproto
, ofp_port_t ofp_port
,
905 struct ofproto_port_stp_status
*s
)
907 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
909 VLOG_WARN_RL(&rl
, "%s: cannot get STP status on nonexistent "
910 "port %"PRIu16
, ofproto
->name
, ofp_port
);
914 return (ofproto
->ofproto_class
->get_stp_port_status
915 ? ofproto
->ofproto_class
->get_stp_port_status(ofport
, s
)
919 /* Retrieves STP port statistics of 'ofp_port' on 'ofproto' and stores it in
920 * 's'. If the 'enabled' member in 's' is false, then the other members
921 * are not meaningful.
923 * Returns 0 if successful, otherwise a positive errno value.*/
925 ofproto_port_get_stp_stats(struct ofproto
*ofproto
, ofp_port_t ofp_port
,
926 struct ofproto_port_stp_stats
*s
)
928 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
930 VLOG_WARN_RL(&rl
, "%s: cannot get STP stats on nonexistent "
931 "port %"PRIu16
, ofproto
->name
, ofp_port
);
935 return (ofproto
->ofproto_class
->get_stp_port_stats
936 ? ofproto
->ofproto_class
->get_stp_port_stats(ofport
, s
)
940 /* Rapid Spanning Tree Protocol (RSTP) configuration. */
942 /* Configures RSTP on 'ofproto' using the settings defined in 's'. If
943 * 's' is NULL, disables RSTP.
945 * Returns 0 if successful, otherwise a positive errno value. */
947 ofproto_set_rstp(struct ofproto
*ofproto
,
948 const struct ofproto_rstp_settings
*s
)
950 if (!ofproto
->ofproto_class
->set_rstp
) {
953 ofproto
->ofproto_class
->set_rstp(ofproto
, s
);
957 /* Retrieves RSTP status of 'ofproto' and stores it in 's'. If the
958 * 'enabled' member of 's' is false, then the other members are not
961 * Returns 0 if successful, otherwise a positive errno value. */
963 ofproto_get_rstp_status(struct ofproto
*ofproto
,
964 struct ofproto_rstp_status
*s
)
966 if (!ofproto
->ofproto_class
->get_rstp_status
) {
969 ofproto
->ofproto_class
->get_rstp_status(ofproto
, s
);
973 /* Configures RSTP on 'ofp_port' of 'ofproto' using the settings defined
974 * in 's'. The caller is responsible for assigning RSTP port numbers
975 * (using the 'port_num' member in the range of 1 through 255, inclusive)
976 * and ensuring there are no duplicates. If the 's' is NULL, then RSTP
977 * is disabled on the port.
979 * Returns 0 if successful, otherwise a positive errno value.*/
981 ofproto_port_set_rstp(struct ofproto
*ofproto
, ofp_port_t ofp_port
,
982 const struct ofproto_port_rstp_settings
*s
)
984 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
986 VLOG_WARN("%s: cannot configure RSTP on nonexistent port %"PRIu16
,
987 ofproto
->name
, ofp_port
);
991 if (!ofproto
->ofproto_class
->set_rstp_port
) {
994 ofproto
->ofproto_class
->set_rstp_port(ofport
, s
);
998 /* Retrieves RSTP port status of 'ofp_port' on 'ofproto' and stores it in
999 * 's'. If the 'enabled' member in 's' is false, then the other members
1000 * are not meaningful.
1002 * Returns 0 if successful, otherwise a positive errno value.*/
1004 ofproto_port_get_rstp_status(struct ofproto
*ofproto
, ofp_port_t ofp_port
,
1005 struct ofproto_port_rstp_status
*s
)
1007 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
1009 VLOG_WARN_RL(&rl
, "%s: cannot get RSTP status on nonexistent "
1010 "port %"PRIu16
, ofproto
->name
, ofp_port
);
1014 if (!ofproto
->ofproto_class
->get_rstp_port_status
) {
1017 ofproto
->ofproto_class
->get_rstp_port_status(ofport
, s
);
1021 /* Queue DSCP configuration. */
1023 /* Registers meta-data associated with the 'n_qdscp' Qualities of Service
1024 * 'queues' attached to 'ofport'. This data is not intended to be sufficient
1025 * to implement QoS. Instead, it is used to implement features which require
1026 * knowledge of what queues exist on a port, and some basic information about
1029 * Returns 0 if successful, otherwise a positive errno value. */
1031 ofproto_port_set_queues(struct ofproto
*ofproto
, ofp_port_t ofp_port
,
1032 const struct ofproto_port_queue
*queues
,
1035 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
1038 VLOG_WARN("%s: cannot set queues on nonexistent port %"PRIu16
,
1039 ofproto
->name
, ofp_port
);
1043 return (ofproto
->ofproto_class
->set_queues
1044 ? ofproto
->ofproto_class
->set_queues(ofport
, queues
, n_queues
)
1048 /* LLDP configuration. */
1050 ofproto_port_set_lldp(struct ofproto
*ofproto
,
1051 ofp_port_t ofp_port
,
1052 const struct smap
*cfg
)
1054 struct ofport
*ofport
;
1057 ofport
= ofproto_get_port(ofproto
, ofp_port
);
1059 VLOG_WARN("%s: cannot configure LLDP on nonexistent port %"PRIu16
,
1060 ofproto
->name
, ofp_port
);
1063 error
= (ofproto
->ofproto_class
->set_lldp
1064 ? ofproto
->ofproto_class
->set_lldp(ofport
, cfg
)
1067 VLOG_WARN("%s: lldp configuration on port %"PRIu16
" (%s) failed (%s)",
1068 ofproto
->name
, ofp_port
, netdev_get_name(ofport
->netdev
),
1069 ovs_strerror(error
));
1074 ofproto_set_aa(struct ofproto
*ofproto
, void *aux OVS_UNUSED
,
1075 const struct aa_settings
*s
)
1077 if (!ofproto
->ofproto_class
->set_aa
) {
1080 ofproto
->ofproto_class
->set_aa(ofproto
, s
);
1085 ofproto_aa_mapping_register(struct ofproto
*ofproto
, void *aux
,
1086 const struct aa_mapping_settings
*s
)
1088 if (!ofproto
->ofproto_class
->aa_mapping_set
) {
1091 ofproto
->ofproto_class
->aa_mapping_set(ofproto
, aux
, s
);
1096 ofproto_aa_mapping_unregister(struct ofproto
*ofproto
, void *aux
)
1098 if (!ofproto
->ofproto_class
->aa_mapping_unset
) {
1101 ofproto
->ofproto_class
->aa_mapping_unset(ofproto
, aux
);
1106 ofproto_aa_vlan_get_queued(struct ofproto
*ofproto
,
1107 struct ovs_list
*list
)
1109 if (!ofproto
->ofproto_class
->aa_vlan_get_queued
) {
1112 ofproto
->ofproto_class
->aa_vlan_get_queued(ofproto
, list
);
1117 ofproto_aa_vlan_get_queue_size(struct ofproto
*ofproto
)
1119 if (!ofproto
->ofproto_class
->aa_vlan_get_queue_size
) {
1122 return ofproto
->ofproto_class
->aa_vlan_get_queue_size(ofproto
);
1125 /* Connectivity Fault Management configuration. */
1127 /* Clears the CFM configuration from 'ofp_port' on 'ofproto'. */
1129 ofproto_port_clear_cfm(struct ofproto
*ofproto
, ofp_port_t ofp_port
)
1131 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
1132 if (ofport
&& ofproto
->ofproto_class
->set_cfm
) {
1133 ofproto
->ofproto_class
->set_cfm(ofport
, NULL
);
1137 /* Configures connectivity fault management on 'ofp_port' in 'ofproto'. Takes
1138 * basic configuration from the configuration members in 'cfm', and the remote
1139 * maintenance point ID from remote_mpid. Ignores the statistics members of
1142 * This function has no effect if 'ofproto' does not have a port 'ofp_port'. */
1144 ofproto_port_set_cfm(struct ofproto
*ofproto
, ofp_port_t ofp_port
,
1145 const struct cfm_settings
*s
)
1147 struct ofport
*ofport
;
1150 ofport
= ofproto_get_port(ofproto
, ofp_port
);
1152 VLOG_WARN("%s: cannot configure CFM on nonexistent port %"PRIu16
,
1153 ofproto
->name
, ofp_port
);
1157 /* XXX: For configuration simplicity, we only support one remote_mpid
1158 * outside of the CFM module. It's not clear if this is the correct long
1159 * term solution or not. */
1160 error
= (ofproto
->ofproto_class
->set_cfm
1161 ? ofproto
->ofproto_class
->set_cfm(ofport
, s
)
1164 VLOG_WARN("%s: CFM configuration on port %"PRIu16
" (%s) failed (%s)",
1165 ofproto
->name
, ofp_port
, netdev_get_name(ofport
->netdev
),
1166 ovs_strerror(error
));
1170 /* Configures BFD on 'ofp_port' in 'ofproto'. This function has no effect if
1171 * 'ofproto' does not have a port 'ofp_port'. */
1173 ofproto_port_set_bfd(struct ofproto
*ofproto
, ofp_port_t ofp_port
,
1174 const struct smap
*cfg
)
1176 struct ofport
*ofport
;
1179 ofport
= ofproto_get_port(ofproto
, ofp_port
);
1181 VLOG_WARN("%s: cannot configure bfd on nonexistent port %"PRIu16
,
1182 ofproto
->name
, ofp_port
);
1186 error
= (ofproto
->ofproto_class
->set_bfd
1187 ? ofproto
->ofproto_class
->set_bfd(ofport
, cfg
)
1190 VLOG_WARN("%s: bfd configuration on port %"PRIu16
" (%s) failed (%s)",
1191 ofproto
->name
, ofp_port
, netdev_get_name(ofport
->netdev
),
1192 ovs_strerror(error
));
1196 /* Checks the status change of BFD on 'ofport'.
1198 * Returns true if 'ofproto_class' does not support 'bfd_status_changed'. */
1200 ofproto_port_bfd_status_changed(struct ofproto
*ofproto
, ofp_port_t ofp_port
)
1202 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
1203 return (ofport
&& ofproto
->ofproto_class
->bfd_status_changed
1204 ? ofproto
->ofproto_class
->bfd_status_changed(ofport
)
1208 /* Populates 'status' with the status of BFD on 'ofport'. Returns 0 on
1209 * success. Returns a positive errno otherwise. Has no effect if 'ofp_port'
1210 * is not an OpenFlow port in 'ofproto'.
1212 * The caller must provide and own '*status'. */
1214 ofproto_port_get_bfd_status(struct ofproto
*ofproto
, ofp_port_t ofp_port
,
1215 struct smap
*status
)
1217 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
1218 return (ofport
&& ofproto
->ofproto_class
->get_bfd_status
1219 ? ofproto
->ofproto_class
->get_bfd_status(ofport
, status
)
1223 /* Checks the status of LACP negotiation for 'ofp_port' within ofproto.
1224 * Returns 1 if LACP partner information for 'ofp_port' is up-to-date,
1225 * 0 if LACP partner information is not current (generally indicating a
1226 * connectivity problem), or -1 if LACP is not enabled on 'ofp_port'. */
1228 ofproto_port_is_lacp_current(struct ofproto
*ofproto
, ofp_port_t ofp_port
)
1230 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
1231 return (ofport
&& ofproto
->ofproto_class
->port_is_lacp_current
1232 ? ofproto
->ofproto_class
->port_is_lacp_current(ofport
)
1237 ofproto_port_get_lacp_stats(const struct ofport
*port
, struct lacp_slave_stats
*stats
)
1239 struct ofproto
*ofproto
= port
->ofproto
;
1242 if (ofproto
->ofproto_class
->port_get_lacp_stats
) {
1243 error
= ofproto
->ofproto_class
->port_get_lacp_stats(port
, stats
);
1253 /* Registers a "bundle" associated with client data pointer 'aux' in 'ofproto'.
1254 * A bundle is the same concept as a Port in OVSDB, that is, it consists of one
1255 * or more "slave" devices (Interfaces, in OVSDB) along with a VLAN
1256 * configuration plus, if there is more than one slave, a bonding
1259 * If 'aux' is already registered then this function updates its configuration
1260 * to 's'. Otherwise, this function registers a new bundle.
1262 * Bundles only affect the NXAST_AUTOPATH action and output to the OFPP_NORMAL
1265 ofproto_bundle_register(struct ofproto
*ofproto
, void *aux
,
1266 const struct ofproto_bundle_settings
*s
)
1268 return (ofproto
->ofproto_class
->bundle_set
1269 ? ofproto
->ofproto_class
->bundle_set(ofproto
, aux
, s
)
1273 /* Unregisters the bundle registered on 'ofproto' with auxiliary data 'aux'.
1274 * If no such bundle has been registered, this has no effect. */
1276 ofproto_bundle_unregister(struct ofproto
*ofproto
, void *aux
)
1278 return ofproto_bundle_register(ofproto
, aux
, NULL
);
1282 /* Registers a mirror associated with client data pointer 'aux' in 'ofproto'.
1283 * If 'aux' is already registered then this function updates its configuration
1284 * to 's'. Otherwise, this function registers a new mirror. */
1286 ofproto_mirror_register(struct ofproto
*ofproto
, void *aux
,
1287 const struct ofproto_mirror_settings
*s
)
1289 return (ofproto
->ofproto_class
->mirror_set
1290 ? ofproto
->ofproto_class
->mirror_set(ofproto
, aux
, s
)
1294 /* Unregisters the mirror registered on 'ofproto' with auxiliary data 'aux'.
1295 * If no mirror has been registered, this has no effect. */
1297 ofproto_mirror_unregister(struct ofproto
*ofproto
, void *aux
)
1299 return ofproto_mirror_register(ofproto
, aux
, NULL
);
1302 /* Retrieves statistics from mirror associated with client data pointer
1303 * 'aux' in 'ofproto'. Stores packet and byte counts in 'packets' and
1304 * 'bytes', respectively. If a particular counters is not supported,
1305 * the appropriate argument is set to UINT64_MAX.
1308 ofproto_mirror_get_stats(struct ofproto
*ofproto
, void *aux
,
1309 uint64_t *packets
, uint64_t *bytes
)
1311 if (!ofproto
->ofproto_class
->mirror_get_stats
) {
1312 *packets
= *bytes
= UINT64_MAX
;
1316 return ofproto
->ofproto_class
->mirror_get_stats(ofproto
, aux
,
1320 /* Configures the VLANs whose bits are set to 1 in 'flood_vlans' as VLANs on
1321 * which all packets are flooded, instead of using MAC learning. If
1322 * 'flood_vlans' is NULL, then MAC learning applies to all VLANs.
1324 * Flood VLANs affect only the treatment of packets output to the OFPP_NORMAL
1327 ofproto_set_flood_vlans(struct ofproto
*ofproto
, unsigned long *flood_vlans
)
1329 return (ofproto
->ofproto_class
->set_flood_vlans
1330 ? ofproto
->ofproto_class
->set_flood_vlans(ofproto
, flood_vlans
)
1334 /* Returns true if 'aux' is a registered bundle that is currently in use as the
1335 * output for a mirror. */
1337 ofproto_is_mirror_output_bundle(const struct ofproto
*ofproto
, void *aux
)
1339 return (ofproto
->ofproto_class
->is_mirror_output_bundle
1340 ? ofproto
->ofproto_class
->is_mirror_output_bundle(ofproto
, aux
)
1344 /* Configuration of OpenFlow tables. */
1346 /* Returns the number of OpenFlow tables in 'ofproto'. */
1348 ofproto_get_n_tables(const struct ofproto
*ofproto
)
1350 return ofproto
->n_tables
;
1353 /* Returns the number of Controller visible OpenFlow tables
1354 * in 'ofproto'. This number will exclude Hidden tables.
1355 * This funtion's return value should be less or equal to that of
1356 * ofproto_get_n_tables() . */
1358 ofproto_get_n_visible_tables(const struct ofproto
*ofproto
)
1360 uint8_t n
= ofproto
->n_tables
;
1362 /* Count only non-hidden tables in the number of tables. (Hidden tables,
1363 * if present, are always at the end.) */
1364 while(n
&& (ofproto
->tables
[n
- 1].flags
& OFTABLE_HIDDEN
)) {
1371 /* Configures the OpenFlow table in 'ofproto' with id 'table_id' with the
1372 * settings from 's'. 'table_id' must be in the range 0 through the number of
1373 * OpenFlow tables in 'ofproto' minus 1, inclusive.
1375 * For read-only tables, only the name may be configured. */
1377 ofproto_configure_table(struct ofproto
*ofproto
, int table_id
,
1378 const struct ofproto_table_settings
*s
)
1380 struct oftable
*table
;
1382 ovs_assert(table_id
>= 0 && table_id
< ofproto
->n_tables
);
1383 table
= &ofproto
->tables
[table_id
];
1385 oftable_set_name(table
, s
->name
);
1387 if (table
->flags
& OFTABLE_READONLY
) {
1392 oftable_enable_eviction(table
, s
->groups
, s
->n_groups
);
1394 oftable_disable_eviction(table
);
1397 table
->max_flows
= s
->max_flows
;
1399 if (classifier_set_prefix_fields(&table
->cls
,
1400 s
->prefix_fields
, s
->n_prefix_fields
)) {
1401 /* XXX: Trigger revalidation. */
1404 ovs_mutex_lock(&ofproto_mutex
);
1405 evict_rules_from_table(table
, 0);
1406 ovs_mutex_unlock(&ofproto_mutex
);
1410 ofproto_has_snoops(const struct ofproto
*ofproto
)
1412 return connmgr_has_snoops(ofproto
->connmgr
);
1416 ofproto_get_snoops(const struct ofproto
*ofproto
, struct sset
*snoops
)
1418 connmgr_get_snoops(ofproto
->connmgr
, snoops
);
1421 /* Deletes 'rule' from 'ofproto'.
1423 * Within an ofproto implementation, this function allows an ofproto
1424 * implementation to destroy any rules that remain when its ->destruct()
1425 * function is called. This function is not suitable for use elsewhere in an
1426 * ofproto implementation.
1428 * This function implements steps 4.4 and 4.5 in the section titled "Rule Life
1429 * Cycle" in ofproto-provider.h. */
1431 ofproto_rule_delete(struct ofproto
*ofproto
, struct rule
*rule
)
1432 OVS_EXCLUDED(ofproto_mutex
)
1434 /* This skips the ofmonitor and flow-removed notifications because the
1435 * switch is being deleted and any OpenFlow channels have been or soon will
1437 ovs_mutex_lock(&ofproto_mutex
);
1438 oftable_remove_rule(rule
);
1439 ofproto
->ofproto_class
->rule_delete(rule
);
1440 ovs_mutex_unlock(&ofproto_mutex
);
1444 ofproto_flush__(struct ofproto
*ofproto
)
1445 OVS_EXCLUDED(ofproto_mutex
)
1447 struct oftable
*table
;
1449 /* This will flush all datapath flows. */
1450 if (ofproto
->ofproto_class
->flush
) {
1451 ofproto
->ofproto_class
->flush(ofproto
);
1454 /* XXX: There is a small race window here, where new datapath flows can be
1455 * created by upcall handlers based on the existing flow table. We can not
1456 * call ofproto class flush while holding 'ofproto_mutex' to prevent this,
1457 * as then we could deadlock on syncing with the handler threads waiting on
1458 * the same mutex. */
1460 ovs_mutex_lock(&ofproto_mutex
);
1461 OFPROTO_FOR_EACH_TABLE (table
, ofproto
) {
1462 struct rule_collection rules
;
1465 if (table
->flags
& OFTABLE_HIDDEN
) {
1469 rule_collection_init(&rules
);
1471 CLS_FOR_EACH (rule
, cr
, &table
->cls
) {
1472 rule_collection_add(&rules
, rule
);
1474 delete_flows__(&rules
, OFPRR_DELETE
, NULL
);
1475 rule_collection_destroy(&rules
);
1477 /* XXX: Concurrent handler threads may insert new learned flows based on
1478 * learn actions of the now deleted flows right after we release
1479 * 'ofproto_mutex'. */
1480 ovs_mutex_unlock(&ofproto_mutex
);
1483 static void delete_group(struct ofproto
*ofproto
, uint32_t group_id
);
1486 ofproto_destroy__(struct ofproto
*ofproto
)
1487 OVS_EXCLUDED(ofproto_mutex
)
1489 struct oftable
*table
;
1491 destroy_rule_executes(ofproto
);
1492 delete_group(ofproto
, OFPG_ALL
);
1494 guarded_list_destroy(&ofproto
->rule_executes
);
1495 ovs_rwlock_destroy(&ofproto
->groups_rwlock
);
1496 hmap_destroy(&ofproto
->groups
);
1498 hmap_remove(&all_ofprotos
, &ofproto
->hmap_node
);
1499 free(ofproto
->name
);
1500 free(ofproto
->type
);
1501 free(ofproto
->mfr_desc
);
1502 free(ofproto
->hw_desc
);
1503 free(ofproto
->sw_desc
);
1504 free(ofproto
->serial_desc
);
1505 free(ofproto
->dp_desc
);
1506 hmap_destroy(&ofproto
->ports
);
1507 hmap_destroy(&ofproto
->ofport_usage
);
1508 shash_destroy(&ofproto
->port_by_name
);
1509 simap_destroy(&ofproto
->ofp_requests
);
1511 OFPROTO_FOR_EACH_TABLE (table
, ofproto
) {
1512 oftable_destroy(table
);
1514 free(ofproto
->tables
);
1516 ovs_assert(hindex_is_empty(&ofproto
->cookies
));
1517 hindex_destroy(&ofproto
->cookies
);
1519 ovs_assert(hmap_is_empty(&ofproto
->learned_cookies
));
1520 hmap_destroy(&ofproto
->learned_cookies
);
1522 free(ofproto
->vlan_bitmap
);
1524 ofproto
->ofproto_class
->dealloc(ofproto
);
1528 ofproto_destroy(struct ofproto
*p
)
1529 OVS_EXCLUDED(ofproto_mutex
)
1531 struct ofport
*ofport
, *next_ofport
;
1532 struct ofport_usage
*usage
, *next_usage
;
1539 meter_delete(p
, 1, p
->meter_features
.max_meters
);
1540 p
->meter_features
.max_meters
= 0;
1546 HMAP_FOR_EACH_SAFE (ofport
, next_ofport
, hmap_node
, &p
->ports
) {
1547 ofport_destroy(ofport
);
1550 HMAP_FOR_EACH_SAFE (usage
, next_usage
, hmap_node
, &p
->ofport_usage
) {
1551 hmap_remove(&p
->ofport_usage
, &usage
->hmap_node
);
1555 p
->ofproto_class
->destruct(p
);
1557 /* We should not postpone this because it involves deleting a listening
1558 * socket which we may want to reopen soon. 'connmgr' should not be used
1559 * by other threads */
1560 connmgr_destroy(p
->connmgr
);
1562 /* Destroying rules is deferred, must have 'ofproto' around for them. */
1563 ovsrcu_postpone(ofproto_destroy__
, p
);
1566 /* Destroys the datapath with the respective 'name' and 'type'. With the Linux
1567 * kernel datapath, for example, this destroys the datapath in the kernel, and
1568 * with the netdev-based datapath, it tears down the data structures that
1569 * represent the datapath.
1571 * The datapath should not be currently open as an ofproto. */
1573 ofproto_delete(const char *name
, const char *type
)
1575 const struct ofproto_class
*class = ofproto_class_find__(type
);
1576 return (!class ? EAFNOSUPPORT
1577 : !class->del
? EACCES
1578 : class->del(type
, name
));
1582 process_port_change(struct ofproto
*ofproto
, int error
, char *devname
)
1584 if (error
== ENOBUFS
) {
1585 reinit_ports(ofproto
);
1586 } else if (!error
) {
1587 update_port(ofproto
, devname
);
1593 ofproto_type_run(const char *datapath_type
)
1595 const struct ofproto_class
*class;
1598 datapath_type
= ofproto_normalize_type(datapath_type
);
1599 class = ofproto_class_find__(datapath_type
);
1601 error
= class->type_run
? class->type_run(datapath_type
) : 0;
1602 if (error
&& error
!= EAGAIN
) {
1603 VLOG_ERR_RL(&rl
, "%s: type_run failed (%s)",
1604 datapath_type
, ovs_strerror(error
));
1610 ofproto_type_wait(const char *datapath_type
)
1612 const struct ofproto_class
*class;
1614 datapath_type
= ofproto_normalize_type(datapath_type
);
1615 class = ofproto_class_find__(datapath_type
);
1617 if (class->type_wait
) {
1618 class->type_wait(datapath_type
);
1623 ofproto_run(struct ofproto
*p
)
1628 error
= p
->ofproto_class
->run(p
);
1629 if (error
&& error
!= EAGAIN
) {
1630 VLOG_ERR_RL(&rl
, "%s: run failed (%s)", p
->name
, ovs_strerror(error
));
1633 run_rule_executes(p
);
1635 /* Restore the eviction group heap invariant occasionally. */
1636 if (p
->eviction_group_timer
< time_msec()) {
1639 p
->eviction_group_timer
= time_msec() + 1000;
1641 for (i
= 0; i
< p
->n_tables
; i
++) {
1642 struct oftable
*table
= &p
->tables
[i
];
1643 struct eviction_group
*evg
;
1646 if (!table
->eviction_fields
) {
1650 if (classifier_count(&table
->cls
) > 100000) {
1651 static struct vlog_rate_limit count_rl
=
1652 VLOG_RATE_LIMIT_INIT(1, 1);
1653 VLOG_WARN_RL(&count_rl
, "Table %"PRIuSIZE
" has an excessive"
1654 " number of rules: %d", i
,
1655 classifier_count(&table
->cls
));
1658 ovs_mutex_lock(&ofproto_mutex
);
1659 CLS_FOR_EACH (rule
, cr
, &table
->cls
) {
1660 if (rule
->idle_timeout
|| rule
->hard_timeout
) {
1661 if (!rule
->eviction_group
) {
1662 eviction_group_add_rule(rule
);
1664 heap_raw_change(&rule
->evg_node
,
1665 rule_eviction_priority(p
, rule
));
1670 HEAP_FOR_EACH (evg
, size_node
, &table
->eviction_groups_by_size
) {
1671 heap_rebuild(&evg
->rules
);
1673 ovs_mutex_unlock(&ofproto_mutex
);
1677 if (p
->ofproto_class
->port_poll
) {
1680 while ((error
= p
->ofproto_class
->port_poll(p
, &devname
)) != EAGAIN
) {
1681 process_port_change(p
, error
, devname
);
1685 new_seq
= seq_read(connectivity_seq_get());
1686 if (new_seq
!= p
->change_seq
) {
1687 struct sset devnames
;
1688 const char *devname
;
1689 struct ofport
*ofport
;
1691 /* Update OpenFlow port status for any port whose netdev has changed.
1693 * Refreshing a given 'ofport' can cause an arbitrary ofport to be
1694 * destroyed, so it's not safe to update ports directly from the
1695 * HMAP_FOR_EACH loop, or even to use HMAP_FOR_EACH_SAFE. Instead, we
1696 * need this two-phase approach. */
1697 sset_init(&devnames
);
1698 HMAP_FOR_EACH (ofport
, hmap_node
, &p
->ports
) {
1699 uint64_t port_change_seq
;
1701 port_change_seq
= netdev_get_change_seq(ofport
->netdev
);
1702 if (ofport
->change_seq
!= port_change_seq
) {
1703 ofport
->change_seq
= port_change_seq
;
1704 sset_add(&devnames
, netdev_get_name(ofport
->netdev
));
1707 SSET_FOR_EACH (devname
, &devnames
) {
1708 update_port(p
, devname
);
1710 sset_destroy(&devnames
);
1712 p
->change_seq
= new_seq
;
1715 connmgr_run(p
->connmgr
, handle_openflow
);
1721 ofproto_wait(struct ofproto
*p
)
1723 p
->ofproto_class
->wait(p
);
1724 if (p
->ofproto_class
->port_poll_wait
) {
1725 p
->ofproto_class
->port_poll_wait(p
);
1727 seq_wait(connectivity_seq_get(), p
->change_seq
);
1728 connmgr_wait(p
->connmgr
);
1732 ofproto_is_alive(const struct ofproto
*p
)
1734 return connmgr_has_controllers(p
->connmgr
);
1737 /* Adds some memory usage statistics for 'ofproto' into 'usage', for use with
1738 * memory_report(). */
1740 ofproto_get_memory_usage(const struct ofproto
*ofproto
, struct simap
*usage
)
1742 const struct oftable
*table
;
1743 unsigned int n_rules
;
1745 simap_increase(usage
, "ports", hmap_count(&ofproto
->ports
));
1748 OFPROTO_FOR_EACH_TABLE (table
, ofproto
) {
1749 n_rules
+= classifier_count(&table
->cls
);
1751 simap_increase(usage
, "rules", n_rules
);
1753 if (ofproto
->ofproto_class
->get_memory_usage
) {
1754 ofproto
->ofproto_class
->get_memory_usage(ofproto
, usage
);
1757 connmgr_get_memory_usage(ofproto
->connmgr
, usage
);
1761 ofproto_type_get_memory_usage(const char *datapath_type
, struct simap
*usage
)
1763 const struct ofproto_class
*class;
1765 datapath_type
= ofproto_normalize_type(datapath_type
);
1766 class = ofproto_class_find__(datapath_type
);
1768 if (class && class->type_get_memory_usage
) {
1769 class->type_get_memory_usage(datapath_type
, usage
);
1774 ofproto_get_ofproto_controller_info(const struct ofproto
*ofproto
,
1777 connmgr_get_controller_info(ofproto
->connmgr
, info
);
1781 ofproto_free_ofproto_controller_info(struct shash
*info
)
1783 connmgr_free_controller_info(info
);
1786 /* Makes a deep copy of 'old' into 'port'. */
1788 ofproto_port_clone(struct ofproto_port
*port
, const struct ofproto_port
*old
)
1790 port
->name
= xstrdup(old
->name
);
1791 port
->type
= xstrdup(old
->type
);
1792 port
->ofp_port
= old
->ofp_port
;
1795 /* Frees memory allocated to members of 'ofproto_port'.
1797 * Do not call this function on an ofproto_port obtained from
1798 * ofproto_port_dump_next(): that function retains ownership of the data in the
1801 ofproto_port_destroy(struct ofproto_port
*ofproto_port
)
1803 free(ofproto_port
->name
);
1804 free(ofproto_port
->type
);
1807 /* Initializes 'dump' to begin dumping the ports in an ofproto.
1809 * This function provides no status indication. An error status for the entire
1810 * dump operation is provided when it is completed by calling
1811 * ofproto_port_dump_done().
1814 ofproto_port_dump_start(struct ofproto_port_dump
*dump
,
1815 const struct ofproto
*ofproto
)
1817 dump
->ofproto
= ofproto
;
1818 dump
->error
= ofproto
->ofproto_class
->port_dump_start(ofproto
,
1822 /* Attempts to retrieve another port from 'dump', which must have been created
1823 * with ofproto_port_dump_start(). On success, stores a new ofproto_port into
1824 * 'port' and returns true. On failure, returns false.
1826 * Failure might indicate an actual error or merely that the last port has been
1827 * dumped. An error status for the entire dump operation is provided when it
1828 * is completed by calling ofproto_port_dump_done().
1830 * The ofproto owns the data stored in 'port'. It will remain valid until at
1831 * least the next time 'dump' is passed to ofproto_port_dump_next() or
1832 * ofproto_port_dump_done(). */
1834 ofproto_port_dump_next(struct ofproto_port_dump
*dump
,
1835 struct ofproto_port
*port
)
1837 const struct ofproto
*ofproto
= dump
->ofproto
;
1843 dump
->error
= ofproto
->ofproto_class
->port_dump_next(ofproto
, dump
->state
,
1846 ofproto
->ofproto_class
->port_dump_done(ofproto
, dump
->state
);
1852 /* Completes port table dump operation 'dump', which must have been created
1853 * with ofproto_port_dump_start(). Returns 0 if the dump operation was
1854 * error-free, otherwise a positive errno value describing the problem. */
1856 ofproto_port_dump_done(struct ofproto_port_dump
*dump
)
1858 const struct ofproto
*ofproto
= dump
->ofproto
;
1860 dump
->error
= ofproto
->ofproto_class
->port_dump_done(ofproto
,
1863 return dump
->error
== EOF
? 0 : dump
->error
;
1866 /* Returns the type to pass to netdev_open() when a datapath of type
1867 * 'datapath_type' has a port of type 'port_type', for a few special
1868 * cases when a netdev type differs from a port type. For example, when
1869 * using the userspace datapath, a port of type "internal" needs to be
1872 * Returns either 'type' itself or a string literal, which must not be
1875 ofproto_port_open_type(const char *datapath_type
, const char *port_type
)
1877 const struct ofproto_class
*class;
1879 datapath_type
= ofproto_normalize_type(datapath_type
);
1880 class = ofproto_class_find__(datapath_type
);
1885 return (class->port_open_type
1886 ? class->port_open_type(datapath_type
, port_type
)
1890 /* Attempts to add 'netdev' as a port on 'ofproto'. If 'ofp_portp' is
1891 * non-null and '*ofp_portp' is not OFPP_NONE, attempts to use that as
1892 * the port's OpenFlow port number.
1894 * If successful, returns 0 and sets '*ofp_portp' to the new port's
1895 * OpenFlow port number (if 'ofp_portp' is non-null). On failure,
1896 * returns a positive errno value and sets '*ofp_portp' to OFPP_NONE (if
1897 * 'ofp_portp' is non-null). */
1899 ofproto_port_add(struct ofproto
*ofproto
, struct netdev
*netdev
,
1900 ofp_port_t
*ofp_portp
)
1902 ofp_port_t ofp_port
= ofp_portp
? *ofp_portp
: OFPP_NONE
;
1905 error
= ofproto
->ofproto_class
->port_add(ofproto
, netdev
);
1907 const char *netdev_name
= netdev_get_name(netdev
);
1909 simap_put(&ofproto
->ofp_requests
, netdev_name
,
1910 ofp_to_u16(ofp_port
));
1911 update_port(ofproto
, netdev_name
);
1914 *ofp_portp
= OFPP_NONE
;
1916 struct ofproto_port ofproto_port
;
1918 error
= ofproto_port_query_by_name(ofproto
,
1919 netdev_get_name(netdev
),
1922 *ofp_portp
= ofproto_port
.ofp_port
;
1923 ofproto_port_destroy(&ofproto_port
);
1930 /* Looks up a port named 'devname' in 'ofproto'. On success, returns 0 and
1931 * initializes '*port' appropriately; on failure, returns a positive errno
1934 * The caller owns the data in 'ofproto_port' and must free it with
1935 * ofproto_port_destroy() when it is no longer needed. */
1937 ofproto_port_query_by_name(const struct ofproto
*ofproto
, const char *devname
,
1938 struct ofproto_port
*port
)
1942 error
= ofproto
->ofproto_class
->port_query_by_name(ofproto
, devname
, port
);
1944 memset(port
, 0, sizeof *port
);
1949 /* Deletes port number 'ofp_port' from the datapath for 'ofproto'.
1950 * Returns 0 if successful, otherwise a positive errno. */
1952 ofproto_port_del(struct ofproto
*ofproto
, ofp_port_t ofp_port
)
1954 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
1955 const char *name
= ofport
? netdev_get_name(ofport
->netdev
) : "<unknown>";
1956 struct simap_node
*ofp_request_node
;
1959 ofp_request_node
= simap_find(&ofproto
->ofp_requests
, name
);
1960 if (ofp_request_node
) {
1961 simap_delete(&ofproto
->ofp_requests
, ofp_request_node
);
1964 error
= ofproto
->ofproto_class
->port_del(ofproto
, ofp_port
);
1965 if (!error
&& ofport
) {
1966 /* 'name' is the netdev's name and update_port() is going to close the
1967 * netdev. Just in case update_port() refers to 'name' after it
1968 * destroys 'ofport', make a copy of it around the update_port()
1970 char *devname
= xstrdup(name
);
1971 update_port(ofproto
, devname
);
1978 flow_mod_init(struct ofputil_flow_mod
*fm
,
1979 const struct match
*match
, int priority
,
1980 const struct ofpact
*ofpacts
, size_t ofpacts_len
,
1981 enum ofp_flow_mod_command command
)
1983 memset(fm
, 0, sizeof *fm
);
1985 fm
->priority
= priority
;
1988 fm
->modify_cookie
= false;
1990 fm
->command
= command
;
1991 fm
->idle_timeout
= 0;
1992 fm
->hard_timeout
= 0;
1994 fm
->buffer_id
= UINT32_MAX
;
1995 fm
->out_port
= OFPP_ANY
;
1996 fm
->out_group
= OFPG_ANY
;
1998 fm
->ofpacts
= CONST_CAST(struct ofpact
*, ofpacts
);
1999 fm
->ofpacts_len
= ofpacts_len
;
2000 fm
->delete_reason
= OFPRR_DELETE
;
2004 simple_flow_mod(struct ofproto
*ofproto
,
2005 const struct match
*match
, int priority
,
2006 const struct ofpact
*ofpacts
, size_t ofpacts_len
,
2007 enum ofp_flow_mod_command command
)
2009 struct ofputil_flow_mod fm
;
2011 flow_mod_init(&fm
, match
, priority
, ofpacts
, ofpacts_len
, command
);
2013 return handle_flow_mod__(ofproto
, &fm
, NULL
);
2016 /* Adds a flow to OpenFlow flow table 0 in 'p' that matches 'cls_rule' and
2017 * performs the 'n_actions' actions in 'actions'. The new flow will not
2020 * If cls_rule->priority is in the range of priorities supported by OpenFlow
2021 * (0...65535, inclusive) then the flow will be visible to OpenFlow
2022 * controllers; otherwise, it will be hidden.
2024 * The caller retains ownership of 'cls_rule' and 'ofpacts'.
2026 * This is a helper function for in-band control and fail-open. */
2028 ofproto_add_flow(struct ofproto
*ofproto
, const struct match
*match
,
2030 const struct ofpact
*ofpacts
, size_t ofpacts_len
)
2031 OVS_EXCLUDED(ofproto_mutex
)
2033 const struct rule
*rule
;
2036 /* First do a cheap check whether the rule we're looking for already exists
2037 * with the actions that we want. If it does, then we're done. */
2038 rule
= rule_from_cls_rule(classifier_find_match_exactly(
2039 &ofproto
->tables
[0].cls
, match
, priority
));
2041 const struct rule_actions
*actions
= rule_get_actions(rule
);
2042 must_add
= !ofpacts_equal(actions
->ofpacts
, actions
->ofpacts_len
,
2043 ofpacts
, ofpacts_len
);
2048 /* If there's no such rule or the rule doesn't have the actions we want,
2049 * fall back to a executing a full flow mod. We can't optimize this at
2050 * all because we didn't take enough locks above to ensure that the flow
2051 * table didn't already change beneath us. */
2053 simple_flow_mod(ofproto
, match
, priority
, ofpacts
, ofpacts_len
,
2054 OFPFC_MODIFY_STRICT
);
2058 /* Executes the flow modification specified in 'fm'. Returns 0 on success, or
2059 * an OFPERR_* OpenFlow error code on failure.
2061 * This is a helper function for in-band control and fail-open and the "learn"
2064 ofproto_flow_mod(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
)
2065 OVS_EXCLUDED(ofproto_mutex
)
2067 /* Optimize for the most common case of a repeated learn action.
2068 * If an identical flow already exists we only need to update its
2069 * 'modified' time. */
2070 if (fm
->command
== OFPFC_MODIFY_STRICT
&& fm
->table_id
!= OFPTT_ALL
2071 && !(fm
->flags
& OFPUTIL_FF_RESET_COUNTS
)) {
2072 struct oftable
*table
= &ofproto
->tables
[fm
->table_id
];
2076 rule
= rule_from_cls_rule(classifier_find_match_exactly(&table
->cls
,
2080 /* Reading many of the rule fields and writing on 'modified'
2081 * requires the rule->mutex. Also, rule->actions may change
2082 * if rule->mutex is not held. */
2083 const struct rule_actions
*actions
;
2085 ovs_mutex_lock(&rule
->mutex
);
2086 actions
= rule_get_actions(rule
);
2087 if (rule
->idle_timeout
== fm
->idle_timeout
2088 && rule
->hard_timeout
== fm
->hard_timeout
2089 && rule
->importance
== fm
->importance
2090 && rule
->flags
== (fm
->flags
& OFPUTIL_FF_STATE
)
2091 && (!fm
->modify_cookie
|| (fm
->new_cookie
== rule
->flow_cookie
))
2092 && ofpacts_equal(fm
->ofpacts
, fm
->ofpacts_len
,
2093 actions
->ofpacts
, actions
->ofpacts_len
)) {
2094 /* Rule already exists and need not change, only update the
2095 modified timestamp. */
2096 rule
->modified
= time_msec();
2099 ovs_mutex_unlock(&rule
->mutex
);
2107 return handle_flow_mod__(ofproto
, fm
, NULL
);
2110 /* Searches for a rule with matching criteria exactly equal to 'target' in
2111 * ofproto's table 0 and, if it finds one, deletes it.
2113 * This is a helper function for in-band control and fail-open. */
2115 ofproto_delete_flow(struct ofproto
*ofproto
,
2116 const struct match
*target
, int priority
)
2117 OVS_EXCLUDED(ofproto_mutex
)
2119 struct classifier
*cls
= &ofproto
->tables
[0].cls
;
2122 /* First do a cheap check whether the rule we're looking for has already
2123 * been deleted. If so, then we're done. */
2124 rule
= rule_from_cls_rule(classifier_find_match_exactly(cls
, target
,
2130 /* Execute a flow mod. We can't optimize this at all because we didn't
2131 * take enough locks above to ensure that the flow table didn't already
2132 * change beneath us. */
2133 simple_flow_mod(ofproto
, target
, priority
, NULL
, 0, OFPFC_DELETE_STRICT
);
2136 /* Delete all of the flows from all of ofproto's flow tables, then reintroduce
2137 * the flows required by in-band control and fail-open. */
2139 ofproto_flush_flows(struct ofproto
*ofproto
)
2141 COVERAGE_INC(ofproto_flush
);
2142 ofproto_flush__(ofproto
);
2143 connmgr_flushed(ofproto
->connmgr
);
2147 reinit_ports(struct ofproto
*p
)
2149 struct ofproto_port_dump dump
;
2150 struct sset devnames
;
2151 struct ofport
*ofport
;
2152 struct ofproto_port ofproto_port
;
2153 const char *devname
;
2155 COVERAGE_INC(ofproto_reinit_ports
);
2157 sset_init(&devnames
);
2158 HMAP_FOR_EACH (ofport
, hmap_node
, &p
->ports
) {
2159 sset_add(&devnames
, netdev_get_name(ofport
->netdev
));
2161 OFPROTO_PORT_FOR_EACH (&ofproto_port
, &dump
, p
) {
2162 sset_add(&devnames
, ofproto_port
.name
);
2165 SSET_FOR_EACH (devname
, &devnames
) {
2166 update_port(p
, devname
);
2168 sset_destroy(&devnames
);
2172 alloc_ofp_port(struct ofproto
*ofproto
, const char *netdev_name
)
2176 port_idx
= simap_get(&ofproto
->ofp_requests
, netdev_name
);
2177 port_idx
= port_idx
? port_idx
: UINT16_MAX
;
2179 if (port_idx
>= ofproto
->max_ports
2180 || ofport_get_usage(ofproto
, u16_to_ofp(port_idx
)) == LLONG_MAX
) {
2181 uint16_t lru_ofport
= 0, end_port_no
= ofproto
->alloc_port_no
;
2182 long long int last_used_at
, lru
= LLONG_MAX
;
2184 /* Search for a free OpenFlow port number. We try not to
2185 * immediately reuse them to prevent problems due to old
2188 * We limit the automatically assigned port numbers to the lower half
2189 * of the port range, to reserve the upper half for assignment by
2192 if (++ofproto
->alloc_port_no
>= MIN(ofproto
->max_ports
, 32768)) {
2193 ofproto
->alloc_port_no
= 1;
2195 last_used_at
= ofport_get_usage(ofproto
,
2196 u16_to_ofp(ofproto
->alloc_port_no
));
2197 if (!last_used_at
) {
2198 port_idx
= ofproto
->alloc_port_no
;
2200 } else if ( last_used_at
< time_msec() - 60*60*1000) {
2201 /* If the port with ofport 'ofproto->alloc_port_no' was deleted
2202 * more than an hour ago, consider it usable. */
2203 ofport_remove_usage(ofproto
,
2204 u16_to_ofp(ofproto
->alloc_port_no
));
2205 port_idx
= ofproto
->alloc_port_no
;
2207 } else if (last_used_at
< lru
) {
2209 lru_ofport
= ofproto
->alloc_port_no
;
2212 if (ofproto
->alloc_port_no
== end_port_no
) {
2214 port_idx
= lru_ofport
;
2221 ofport_set_usage(ofproto
, u16_to_ofp(port_idx
), LLONG_MAX
);
2222 return u16_to_ofp(port_idx
);
2226 dealloc_ofp_port(struct ofproto
*ofproto
, ofp_port_t ofp_port
)
2228 if (ofp_to_u16(ofp_port
) < ofproto
->max_ports
) {
2229 ofport_set_usage(ofproto
, ofp_port
, time_msec());
2233 /* Opens and returns a netdev for 'ofproto_port' in 'ofproto', or a null
2234 * pointer if the netdev cannot be opened. On success, also fills in
2236 static struct netdev
*
2237 ofport_open(struct ofproto
*ofproto
,
2238 struct ofproto_port
*ofproto_port
,
2239 struct ofputil_phy_port
*pp
)
2241 enum netdev_flags flags
;
2242 struct netdev
*netdev
;
2245 error
= netdev_open(ofproto_port
->name
, ofproto_port
->type
, &netdev
);
2247 VLOG_WARN_RL(&rl
, "%s: ignoring port %s (%"PRIu16
") because netdev %s "
2248 "cannot be opened (%s)",
2250 ofproto_port
->name
, ofproto_port
->ofp_port
,
2251 ofproto_port
->name
, ovs_strerror(error
));
2255 if (ofproto_port
->ofp_port
== OFPP_NONE
) {
2256 if (!strcmp(ofproto
->name
, ofproto_port
->name
)) {
2257 ofproto_port
->ofp_port
= OFPP_LOCAL
;
2259 ofproto_port
->ofp_port
= alloc_ofp_port(ofproto
,
2260 ofproto_port
->name
);
2263 pp
->port_no
= ofproto_port
->ofp_port
;
2264 netdev_get_etheraddr(netdev
, pp
->hw_addr
);
2265 ovs_strlcpy(pp
->name
, ofproto_port
->name
, sizeof pp
->name
);
2266 netdev_get_flags(netdev
, &flags
);
2267 pp
->config
= flags
& NETDEV_UP
? 0 : OFPUTIL_PC_PORT_DOWN
;
2268 pp
->state
= netdev_get_carrier(netdev
) ? 0 : OFPUTIL_PS_LINK_DOWN
;
2269 netdev_get_features(netdev
, &pp
->curr
, &pp
->advertised
,
2270 &pp
->supported
, &pp
->peer
);
2271 pp
->curr_speed
= netdev_features_to_bps(pp
->curr
, 0) / 1000;
2272 pp
->max_speed
= netdev_features_to_bps(pp
->supported
, 0) / 1000;
2277 /* Returns true if most fields of 'a' and 'b' are equal. Differences in name,
2278 * port number, and 'config' bits other than OFPUTIL_PC_PORT_DOWN are
2281 ofport_equal(const struct ofputil_phy_port
*a
,
2282 const struct ofputil_phy_port
*b
)
2284 return (eth_addr_equals(a
->hw_addr
, b
->hw_addr
)
2285 && a
->state
== b
->state
2286 && !((a
->config
^ b
->config
) & OFPUTIL_PC_PORT_DOWN
)
2287 && a
->curr
== b
->curr
2288 && a
->advertised
== b
->advertised
2289 && a
->supported
== b
->supported
2290 && a
->peer
== b
->peer
2291 && a
->curr_speed
== b
->curr_speed
2292 && a
->max_speed
== b
->max_speed
);
2295 /* Adds an ofport to 'p' initialized based on the given 'netdev' and 'opp'.
2296 * The caller must ensure that 'p' does not have a conflicting ofport (that is,
2297 * one with the same name or port number). */
2299 ofport_install(struct ofproto
*p
,
2300 struct netdev
*netdev
, const struct ofputil_phy_port
*pp
)
2302 const char *netdev_name
= netdev_get_name(netdev
);
2303 struct ofport
*ofport
;
2306 /* Create ofport. */
2307 ofport
= p
->ofproto_class
->port_alloc();
2312 ofport
->ofproto
= p
;
2313 ofport
->netdev
= netdev
;
2314 ofport
->change_seq
= netdev_get_change_seq(netdev
);
2316 ofport
->ofp_port
= pp
->port_no
;
2317 ofport
->created
= time_msec();
2319 /* Add port to 'p'. */
2320 hmap_insert(&p
->ports
, &ofport
->hmap_node
,
2321 hash_ofp_port(ofport
->ofp_port
));
2322 shash_add(&p
->port_by_name
, netdev_name
, ofport
);
2324 update_mtu(p
, ofport
);
2326 /* Let the ofproto_class initialize its private data. */
2327 error
= p
->ofproto_class
->port_construct(ofport
);
2331 connmgr_send_port_status(p
->connmgr
, NULL
, pp
, OFPPR_ADD
);
2335 VLOG_WARN_RL(&rl
, "%s: could not add port %s (%s)",
2336 p
->name
, netdev_name
, ovs_strerror(error
));
2338 ofport_destroy__(ofport
);
2340 netdev_close(netdev
);
2344 /* Removes 'ofport' from 'p' and destroys it. */
2346 ofport_remove(struct ofport
*ofport
)
2348 connmgr_send_port_status(ofport
->ofproto
->connmgr
, NULL
, &ofport
->pp
,
2350 ofport_destroy(ofport
);
2353 /* If 'ofproto' contains an ofport named 'name', removes it from 'ofproto' and
2356 ofport_remove_with_name(struct ofproto
*ofproto
, const char *name
)
2358 struct ofport
*port
= shash_find_data(&ofproto
->port_by_name
, name
);
2360 ofport_remove(port
);
2364 /* Updates 'port' with new 'pp' description.
2366 * Does not handle a name or port number change. The caller must implement
2367 * such a change as a delete followed by an add. */
2369 ofport_modified(struct ofport
*port
, struct ofputil_phy_port
*pp
)
2371 memcpy(port
->pp
.hw_addr
, pp
->hw_addr
, ETH_ADDR_LEN
);
2372 port
->pp
.config
= ((port
->pp
.config
& ~OFPUTIL_PC_PORT_DOWN
)
2373 | (pp
->config
& OFPUTIL_PC_PORT_DOWN
));
2374 port
->pp
.state
= ((port
->pp
.state
& ~OFPUTIL_PS_LINK_DOWN
)
2375 | (pp
->state
& OFPUTIL_PS_LINK_DOWN
));
2376 port
->pp
.curr
= pp
->curr
;
2377 port
->pp
.advertised
= pp
->advertised
;
2378 port
->pp
.supported
= pp
->supported
;
2379 port
->pp
.peer
= pp
->peer
;
2380 port
->pp
.curr_speed
= pp
->curr_speed
;
2381 port
->pp
.max_speed
= pp
->max_speed
;
2383 connmgr_send_port_status(port
->ofproto
->connmgr
, NULL
,
2384 &port
->pp
, OFPPR_MODIFY
);
2387 /* Update OpenFlow 'state' in 'port' and notify controller. */
2389 ofproto_port_set_state(struct ofport
*port
, enum ofputil_port_state state
)
2391 if (port
->pp
.state
!= state
) {
2392 port
->pp
.state
= state
;
2393 connmgr_send_port_status(port
->ofproto
->connmgr
, NULL
,
2394 &port
->pp
, OFPPR_MODIFY
);
2399 ofproto_port_unregister(struct ofproto
*ofproto
, ofp_port_t ofp_port
)
2401 struct ofport
*port
= ofproto_get_port(ofproto
, ofp_port
);
2403 if (port
->ofproto
->ofproto_class
->set_realdev
) {
2404 port
->ofproto
->ofproto_class
->set_realdev(port
, 0, 0);
2406 if (port
->ofproto
->ofproto_class
->set_stp_port
) {
2407 port
->ofproto
->ofproto_class
->set_stp_port(port
, NULL
);
2409 if (port
->ofproto
->ofproto_class
->set_rstp_port
) {
2410 port
->ofproto
->ofproto_class
->set_rstp_port(port
, NULL
);
2412 if (port
->ofproto
->ofproto_class
->set_cfm
) {
2413 port
->ofproto
->ofproto_class
->set_cfm(port
, NULL
);
2415 if (port
->ofproto
->ofproto_class
->bundle_remove
) {
2416 port
->ofproto
->ofproto_class
->bundle_remove(port
);
2422 ofport_destroy__(struct ofport
*port
)
2424 struct ofproto
*ofproto
= port
->ofproto
;
2425 const char *name
= netdev_get_name(port
->netdev
);
2427 hmap_remove(&ofproto
->ports
, &port
->hmap_node
);
2428 shash_delete(&ofproto
->port_by_name
,
2429 shash_find(&ofproto
->port_by_name
, name
));
2431 netdev_close(port
->netdev
);
2432 ofproto
->ofproto_class
->port_dealloc(port
);
2436 ofport_destroy(struct ofport
*port
)
2439 dealloc_ofp_port(port
->ofproto
, port
->ofp_port
);
2440 port
->ofproto
->ofproto_class
->port_destruct(port
);
2441 ofport_destroy__(port
);
2446 ofproto_get_port(const struct ofproto
*ofproto
, ofp_port_t ofp_port
)
2448 struct ofport
*port
;
2450 HMAP_FOR_EACH_IN_BUCKET (port
, hmap_node
, hash_ofp_port(ofp_port
),
2452 if (port
->ofp_port
== ofp_port
) {
2459 static long long int
2460 ofport_get_usage(const struct ofproto
*ofproto
, ofp_port_t ofp_port
)
2462 struct ofport_usage
*usage
;
2464 HMAP_FOR_EACH_IN_BUCKET (usage
, hmap_node
, hash_ofp_port(ofp_port
),
2465 &ofproto
->ofport_usage
) {
2466 if (usage
->ofp_port
== ofp_port
) {
2467 return usage
->last_used
;
2474 ofport_set_usage(struct ofproto
*ofproto
, ofp_port_t ofp_port
,
2475 long long int last_used
)
2477 struct ofport_usage
*usage
;
2478 HMAP_FOR_EACH_IN_BUCKET (usage
, hmap_node
, hash_ofp_port(ofp_port
),
2479 &ofproto
->ofport_usage
) {
2480 if (usage
->ofp_port
== ofp_port
) {
2481 usage
->last_used
= last_used
;
2485 ovs_assert(last_used
== LLONG_MAX
);
2487 usage
= xmalloc(sizeof *usage
);
2488 usage
->ofp_port
= ofp_port
;
2489 usage
->last_used
= last_used
;
2490 hmap_insert(&ofproto
->ofport_usage
, &usage
->hmap_node
,
2491 hash_ofp_port(ofp_port
));
2495 ofport_remove_usage(struct ofproto
*ofproto
, ofp_port_t ofp_port
)
2497 struct ofport_usage
*usage
;
2498 HMAP_FOR_EACH_IN_BUCKET (usage
, hmap_node
, hash_ofp_port(ofp_port
),
2499 &ofproto
->ofport_usage
) {
2500 if (usage
->ofp_port
== ofp_port
) {
2501 hmap_remove(&ofproto
->ofport_usage
, &usage
->hmap_node
);
2509 ofproto_port_get_stats(const struct ofport
*port
, struct netdev_stats
*stats
)
2511 struct ofproto
*ofproto
= port
->ofproto
;
2514 if (ofproto
->ofproto_class
->port_get_stats
) {
2515 error
= ofproto
->ofproto_class
->port_get_stats(port
, stats
);
2524 update_port(struct ofproto
*ofproto
, const char *name
)
2526 struct ofproto_port ofproto_port
;
2527 struct ofputil_phy_port pp
;
2528 struct netdev
*netdev
;
2529 struct ofport
*port
;
2531 COVERAGE_INC(ofproto_update_port
);
2533 /* Fetch 'name''s location and properties from the datapath. */
2534 netdev
= (!ofproto_port_query_by_name(ofproto
, name
, &ofproto_port
)
2535 ? ofport_open(ofproto
, &ofproto_port
, &pp
)
2539 port
= ofproto_get_port(ofproto
, ofproto_port
.ofp_port
);
2540 if (port
&& !strcmp(netdev_get_name(port
->netdev
), name
)) {
2541 struct netdev
*old_netdev
= port
->netdev
;
2543 /* 'name' hasn't changed location. Any properties changed? */
2544 if (!ofport_equal(&port
->pp
, &pp
)) {
2545 ofport_modified(port
, &pp
);
2548 update_mtu(ofproto
, port
);
2550 /* Install the newly opened netdev in case it has changed.
2551 * Don't close the old netdev yet in case port_modified has to
2552 * remove a retained reference to it.*/
2553 port
->netdev
= netdev
;
2554 port
->change_seq
= netdev_get_change_seq(netdev
);
2556 if (port
->ofproto
->ofproto_class
->port_modified
) {
2557 port
->ofproto
->ofproto_class
->port_modified(port
);
2560 netdev_close(old_netdev
);
2562 /* If 'port' is nonnull then its name differs from 'name' and thus
2563 * we should delete it. If we think there's a port named 'name'
2564 * then its port number must be wrong now so delete it too. */
2566 ofport_remove(port
);
2568 ofport_remove_with_name(ofproto
, name
);
2569 ofport_install(ofproto
, netdev
, &pp
);
2572 /* Any port named 'name' is gone now. */
2573 ofport_remove_with_name(ofproto
, name
);
2575 ofproto_port_destroy(&ofproto_port
);
2579 init_ports(struct ofproto
*p
)
2581 struct ofproto_port_dump dump
;
2582 struct ofproto_port ofproto_port
;
2583 struct shash_node
*node
, *next
;
2585 OFPROTO_PORT_FOR_EACH (&ofproto_port
, &dump
, p
) {
2586 const char *name
= ofproto_port
.name
;
2588 if (shash_find(&p
->port_by_name
, name
)) {
2589 VLOG_WARN_RL(&rl
, "%s: ignoring duplicate device %s in datapath",
2592 struct ofputil_phy_port pp
;
2593 struct netdev
*netdev
;
2595 /* Check if an OpenFlow port number had been requested. */
2596 node
= shash_find(&init_ofp_ports
, name
);
2598 const struct iface_hint
*iface_hint
= node
->data
;
2599 simap_put(&p
->ofp_requests
, name
,
2600 ofp_to_u16(iface_hint
->ofp_port
));
2603 netdev
= ofport_open(p
, &ofproto_port
, &pp
);
2605 ofport_install(p
, netdev
, &pp
);
2606 if (ofp_to_u16(ofproto_port
.ofp_port
) < p
->max_ports
) {
2607 p
->alloc_port_no
= MAX(p
->alloc_port_no
,
2608 ofp_to_u16(ofproto_port
.ofp_port
));
2614 SHASH_FOR_EACH_SAFE(node
, next
, &init_ofp_ports
) {
2615 struct iface_hint
*iface_hint
= node
->data
;
2617 if (!strcmp(iface_hint
->br_name
, p
->name
)) {
2618 free(iface_hint
->br_name
);
2619 free(iface_hint
->br_type
);
2621 shash_delete(&init_ofp_ports
, node
);
2628 /* Find the minimum MTU of all non-datapath devices attached to 'p'.
2629 * Returns ETH_PAYLOAD_MAX or the minimum of the ports. */
2631 find_min_mtu(struct ofproto
*p
)
2633 struct ofport
*ofport
;
2636 HMAP_FOR_EACH (ofport
, hmap_node
, &p
->ports
) {
2637 struct netdev
*netdev
= ofport
->netdev
;
2640 /* Skip any internal ports, since that's what we're trying to
2642 if (!strcmp(netdev_get_type(netdev
), "internal")) {
2646 if (netdev_get_mtu(netdev
, &dev_mtu
)) {
2649 if (!mtu
|| dev_mtu
< mtu
) {
2654 return mtu
? mtu
: ETH_PAYLOAD_MAX
;
2657 /* Update MTU of all datapath devices on 'p' to the minimum of the
2658 * non-datapath ports in event of 'port' added or changed. */
2660 update_mtu(struct ofproto
*p
, struct ofport
*port
)
2662 struct ofport
*ofport
;
2663 struct netdev
*netdev
= port
->netdev
;
2664 int dev_mtu
, old_min
;
2666 if (netdev_get_mtu(netdev
, &dev_mtu
)) {
2670 if (!strcmp(netdev_get_type(port
->netdev
), "internal")) {
2671 if (dev_mtu
> p
->min_mtu
) {
2672 if (!netdev_set_mtu(port
->netdev
, p
->min_mtu
)) {
2673 dev_mtu
= p
->min_mtu
;
2676 port
->mtu
= dev_mtu
;
2680 /* For non-internal port find new min mtu. */
2681 old_min
= p
->min_mtu
;
2682 port
->mtu
= dev_mtu
;
2683 p
->min_mtu
= find_min_mtu(p
);
2684 if (p
->min_mtu
== old_min
) {
2688 HMAP_FOR_EACH (ofport
, hmap_node
, &p
->ports
) {
2689 struct netdev
*netdev
= ofport
->netdev
;
2691 if (!strcmp(netdev_get_type(netdev
), "internal")) {
2692 if (!netdev_set_mtu(netdev
, p
->min_mtu
)) {
2693 ofport
->mtu
= p
->min_mtu
;
2700 ofproto_rule_destroy__(struct rule
*rule
)
2701 OVS_NO_THREAD_SAFETY_ANALYSIS
2703 cls_rule_destroy(CONST_CAST(struct cls_rule
*, &rule
->cr
));
2704 rule_actions_destroy(rule_get_actions(rule
));
2705 ovs_mutex_destroy(&rule
->mutex
);
2706 rule
->ofproto
->ofproto_class
->rule_dealloc(rule
);
2709 /* Create a new rule based on attributes in 'fm', match in 'cr', and
2710 * 'table_id'. Note that the rule is NOT inserted into a any data structures
2711 * yet. Takes ownership of 'cr'. */
2713 ofproto_rule_create(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
2714 struct cls_rule
*cr
, uint8_t table_id
,
2715 struct rule
**rulep
)
2716 OVS_REQUIRES(ofproto_mutex
)
2721 /* Allocate new rule. */
2722 rule
= ofproto
->ofproto_class
->rule_alloc();
2724 cls_rule_destroy(cr
);
2725 VLOG_WARN_RL(&rl
, "%s: failed to allocate a rule.", ofproto
->name
);
2726 return OFPERR_OFPFMFC_UNKNOWN
;
2729 /* Initialize base state. */
2730 *CONST_CAST(struct ofproto
**, &rule
->ofproto
) = ofproto
;
2731 cls_rule_move(CONST_CAST(struct cls_rule
*, &rule
->cr
), cr
);
2732 ovs_refcount_init(&rule
->ref_count
);
2733 rule
->flow_cookie
= fm
->new_cookie
;
2734 rule
->created
= rule
->modified
= time_msec();
2736 ovs_mutex_init(&rule
->mutex
);
2737 ovs_mutex_lock(&rule
->mutex
);
2738 rule
->idle_timeout
= fm
->idle_timeout
;
2739 rule
->hard_timeout
= fm
->hard_timeout
;
2740 rule
->importance
= fm
->importance
;
2741 ovs_mutex_unlock(&rule
->mutex
);
2743 *CONST_CAST(uint8_t *, &rule
->table_id
) = table_id
;
2744 rule
->flags
= fm
->flags
& OFPUTIL_FF_STATE
;
2745 ovsrcu_set_hidden(&rule
->actions
,
2746 rule_actions_create(fm
->ofpacts
, fm
->ofpacts_len
));
2747 list_init(&rule
->meter_list_node
);
2748 rule
->eviction_group
= NULL
;
2749 list_init(&rule
->expirable
);
2750 rule
->monitor_flags
= 0;
2751 rule
->add_seqno
= 0;
2752 rule
->modify_seqno
= 0;
2754 /* Construct rule, initializing derived state. */
2755 error
= ofproto
->ofproto_class
->rule_construct(rule
);
2757 ofproto_rule_destroy__(rule
);
2766 rule_destroy_cb(struct rule
*rule
)
2768 rule
->ofproto
->ofproto_class
->rule_destruct(rule
);
2769 ofproto_rule_destroy__(rule
);
2773 ofproto_rule_ref(struct rule
*rule
)
2776 ovs_refcount_ref(&rule
->ref_count
);
2781 ofproto_rule_try_ref(struct rule
*rule
)
2784 return ovs_refcount_try_ref_rcu(&rule
->ref_count
);
2789 /* Decrements 'rule''s ref_count and schedules 'rule' to be destroyed if the
2790 * ref_count reaches 0.
2792 * Use of RCU allows short term use (between RCU quiescent periods) without
2793 * keeping a reference. A reference must be taken if the rule needs to
2794 * stay around accross the RCU quiescent periods. */
2796 ofproto_rule_unref(struct rule
*rule
)
2798 if (rule
&& ovs_refcount_unref_relaxed(&rule
->ref_count
) == 1) {
2799 ovsrcu_postpone(rule_destroy_cb
, rule
);
2804 ofproto_group_ref(struct ofgroup
*group
)
2807 ovs_refcount_ref(&group
->ref_count
);
2812 ofproto_group_unref(struct ofgroup
*group
)
2814 if (group
&& ovs_refcount_unref(&group
->ref_count
) == 1) {
2815 group
->ofproto
->ofproto_class
->group_destruct(group
);
2816 ofputil_bucket_list_destroy(&group
->buckets
);
2817 group
->ofproto
->ofproto_class
->group_dealloc(group
);
2821 static uint32_t get_provider_meter_id(const struct ofproto
*,
2822 uint32_t of_meter_id
);
2824 /* Creates and returns a new 'struct rule_actions', whose actions are a copy
2825 * of from the 'ofpacts_len' bytes of 'ofpacts'. */
2826 const struct rule_actions
*
2827 rule_actions_create(const struct ofpact
*ofpacts
, size_t ofpacts_len
)
2829 struct rule_actions
*actions
;
2831 actions
= xmalloc(sizeof *actions
+ ofpacts_len
);
2832 actions
->ofpacts_len
= ofpacts_len
;
2833 actions
->has_meter
= ofpacts_get_meter(ofpacts
, ofpacts_len
) != 0;
2834 memcpy(actions
->ofpacts
, ofpacts
, ofpacts_len
);
2836 actions
->has_learn_with_delete
= (next_learn_with_delete(actions
, NULL
)
2842 /* Free the actions after the RCU quiescent period is reached. */
2844 rule_actions_destroy(const struct rule_actions
*actions
)
2847 ovsrcu_postpone(free
, CONST_CAST(struct rule_actions
*, actions
));
2851 /* Returns true if 'rule' has an OpenFlow OFPAT_OUTPUT or OFPAT_ENQUEUE action
2852 * that outputs to 'port' (output to OFPP_FLOOD and OFPP_ALL doesn't count). */
2854 ofproto_rule_has_out_port(const struct rule
*rule
, ofp_port_t port
)
2855 OVS_REQUIRES(ofproto_mutex
)
2857 if (port
== OFPP_ANY
) {
2860 const struct rule_actions
*actions
= rule_get_actions(rule
);
2861 return ofpacts_output_to_port(actions
->ofpacts
,
2862 actions
->ofpacts_len
, port
);
2866 /* Returns true if 'rule' has group and equals group_id. */
2868 ofproto_rule_has_out_group(const struct rule
*rule
, uint32_t group_id
)
2869 OVS_REQUIRES(ofproto_mutex
)
2871 if (group_id
== OFPG_ANY
) {
2874 const struct rule_actions
*actions
= rule_get_actions(rule
);
2875 return ofpacts_output_to_group(actions
->ofpacts
,
2876 actions
->ofpacts_len
, group_id
);
2881 rule_execute_destroy(struct rule_execute
*e
)
2883 ofproto_rule_unref(e
->rule
);
2884 list_remove(&e
->list_node
);
2888 /* Executes all "rule_execute" operations queued up in ofproto->rule_executes,
2889 * by passing them to the ofproto provider. */
2891 run_rule_executes(struct ofproto
*ofproto
)
2892 OVS_EXCLUDED(ofproto_mutex
)
2894 struct rule_execute
*e
, *next
;
2895 struct ovs_list executes
;
2897 guarded_list_pop_all(&ofproto
->rule_executes
, &executes
);
2898 LIST_FOR_EACH_SAFE (e
, next
, list_node
, &executes
) {
2901 flow_extract(e
->packet
, &flow
);
2902 flow
.in_port
.ofp_port
= e
->in_port
;
2903 ofproto
->ofproto_class
->rule_execute(e
->rule
, &flow
, e
->packet
);
2905 rule_execute_destroy(e
);
2909 /* Destroys and discards all "rule_execute" operations queued up in
2910 * ofproto->rule_executes. */
2912 destroy_rule_executes(struct ofproto
*ofproto
)
2914 struct rule_execute
*e
, *next
;
2915 struct ovs_list executes
;
2917 guarded_list_pop_all(&ofproto
->rule_executes
, &executes
);
2918 LIST_FOR_EACH_SAFE (e
, next
, list_node
, &executes
) {
2919 dp_packet_delete(e
->packet
);
2920 rule_execute_destroy(e
);
2925 rule_is_readonly(const struct rule
*rule
)
2927 const struct oftable
*table
= &rule
->ofproto
->tables
[rule
->table_id
];
2928 return (table
->flags
& OFTABLE_READONLY
) != 0;
2932 hash_learned_cookie(ovs_be64 cookie_
, uint8_t table_id
)
2934 uint64_t cookie
= (OVS_FORCE
uint64_t) cookie_
;
2935 return hash_3words(cookie
, cookie
>> 32, table_id
);
2939 learned_cookies_update_one__(struct ofproto
*ofproto
,
2940 const struct ofpact_learn
*learn
,
2941 int delta
, struct ovs_list
*dead_cookies
)
2942 OVS_REQUIRES(ofproto_mutex
)
2944 uint32_t hash
= hash_learned_cookie(learn
->cookie
, learn
->table_id
);
2945 struct learned_cookie
*c
;
2947 HMAP_FOR_EACH_WITH_HASH (c
, u
.hmap_node
, hash
, &ofproto
->learned_cookies
) {
2948 if (c
->cookie
== learn
->cookie
&& c
->table_id
== learn
->table_id
) {
2950 ovs_assert(c
->n
>= 0);
2953 hmap_remove(&ofproto
->learned_cookies
, &c
->u
.hmap_node
);
2954 list_push_back(dead_cookies
, &c
->u
.list_node
);
2961 ovs_assert(delta
> 0);
2962 c
= xmalloc(sizeof *c
);
2963 hmap_insert(&ofproto
->learned_cookies
, &c
->u
.hmap_node
, hash
);
2964 c
->cookie
= learn
->cookie
;
2965 c
->table_id
= learn
->table_id
;
2969 static const struct ofpact_learn
*
2970 next_learn_with_delete(const struct rule_actions
*actions
,
2971 const struct ofpact_learn
*start
)
2973 const struct ofpact
*pos
;
2975 for (pos
= start
? ofpact_next(&start
->ofpact
) : actions
->ofpacts
;
2976 pos
< ofpact_end(actions
->ofpacts
, actions
->ofpacts_len
);
2977 pos
= ofpact_next(pos
)) {
2978 if (pos
->type
== OFPACT_LEARN
) {
2979 const struct ofpact_learn
*learn
= ofpact_get_LEARN(pos
);
2980 if (learn
->flags
& NX_LEARN_F_DELETE_LEARNED
) {
2990 learned_cookies_update__(struct ofproto
*ofproto
,
2991 const struct rule_actions
*actions
,
2992 int delta
, struct ovs_list
*dead_cookies
)
2993 OVS_REQUIRES(ofproto_mutex
)
2995 if (actions
->has_learn_with_delete
) {
2996 const struct ofpact_learn
*learn
;
2998 for (learn
= next_learn_with_delete(actions
, NULL
); learn
;
2999 learn
= next_learn_with_delete(actions
, learn
)) {
3000 learned_cookies_update_one__(ofproto
, learn
, delta
, dead_cookies
);
3006 learned_cookies_inc(struct ofproto
*ofproto
,
3007 const struct rule_actions
*actions
)
3008 OVS_REQUIRES(ofproto_mutex
)
3010 learned_cookies_update__(ofproto
, actions
, +1, NULL
);
3014 learned_cookies_dec(struct ofproto
*ofproto
,
3015 const struct rule_actions
*actions
,
3016 struct ovs_list
*dead_cookies
)
3017 OVS_REQUIRES(ofproto_mutex
)
3019 learned_cookies_update__(ofproto
, actions
, -1, dead_cookies
);
3023 learned_cookies_flush(struct ofproto
*ofproto
, struct ovs_list
*dead_cookies
)
3024 OVS_REQUIRES(ofproto_mutex
)
3026 struct learned_cookie
*c
;
3028 LIST_FOR_EACH_POP (c
, u
.list_node
, dead_cookies
) {
3029 struct rule_criteria criteria
;
3030 struct rule_collection rules
;
3033 match_init_catchall(&match
);
3034 rule_criteria_init(&criteria
, c
->table_id
, &match
, 0,
3035 c
->cookie
, OVS_BE64_MAX
, OFPP_ANY
, OFPG_ANY
);
3036 rule_criteria_require_rw(&criteria
, false);
3037 collect_rules_loose(ofproto
, &criteria
, &rules
);
3038 delete_flows__(&rules
, OFPRR_DELETE
, NULL
);
3039 rule_criteria_destroy(&criteria
);
3040 rule_collection_destroy(&rules
);
3047 handle_echo_request(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
3049 ofconn_send_reply(ofconn
, make_echo_reply(oh
));
3054 query_tables(struct ofproto
*ofproto
,
3055 struct ofputil_table_features
**featuresp
,
3056 struct ofputil_table_stats
**statsp
)
3058 struct mf_bitmap rw_fields
= oxm_writable_fields();
3059 struct mf_bitmap match
= oxm_matchable_fields();
3060 struct mf_bitmap mask
= oxm_maskable_fields();
3062 struct ofputil_table_features
*features
;
3063 struct ofputil_table_stats
*stats
;
3066 features
= *featuresp
= xcalloc(ofproto
->n_tables
, sizeof *features
);
3067 for (i
= 0; i
< ofproto
->n_tables
; i
++) {
3068 struct ofputil_table_features
*f
= &features
[i
];
3071 sprintf(f
->name
, "table%d", i
);
3072 f
->metadata_match
= OVS_BE64_MAX
;
3073 f
->metadata_write
= OVS_BE64_MAX
;
3074 atomic_read_relaxed(&ofproto
->tables
[i
].miss_config
, &f
->miss_config
);
3075 f
->max_entries
= 1000000;
3077 bool more_tables
= false;
3078 for (int j
= i
+ 1; j
< ofproto
->n_tables
; j
++) {
3079 if (!(ofproto
->tables
[j
].flags
& OFTABLE_HIDDEN
)) {
3080 bitmap_set1(f
->nonmiss
.next
, j
);
3084 f
->nonmiss
.instructions
= (1u << N_OVS_INSTRUCTIONS
) - 1;
3086 f
->nonmiss
.instructions
&= ~(1u << OVSINST_OFPIT11_GOTO_TABLE
);
3088 f
->nonmiss
.write
.ofpacts
= (UINT64_C(1) << N_OFPACTS
) - 1;
3089 f
->nonmiss
.write
.set_fields
= rw_fields
;
3090 f
->nonmiss
.apply
= f
->nonmiss
.write
;
3091 f
->miss
= f
->nonmiss
;
3095 f
->wildcard
= match
;
3099 stats
= *statsp
= xcalloc(ofproto
->n_tables
, sizeof *stats
);
3100 for (i
= 0; i
< ofproto
->n_tables
; i
++) {
3101 struct ofputil_table_stats
*s
= &stats
[i
];
3102 struct classifier
*cls
= &ofproto
->tables
[i
].cls
;
3105 s
->active_count
= classifier_count(cls
);
3107 s
->active_count
-= connmgr_count_hidden_rules(
3115 ofproto
->ofproto_class
->query_tables(ofproto
, features
, stats
);
3117 for (i
= 0; i
< ofproto
->n_tables
; i
++) {
3118 const struct oftable
*table
= &ofproto
->tables
[i
];
3119 struct ofputil_table_features
*f
= &features
[i
];
3122 ovs_strzcpy(f
->name
, table
->name
, sizeof f
->name
);
3125 if (table
->max_flows
< f
->max_entries
) {
3126 f
->max_entries
= table
->max_flows
;
3132 query_switch_features(struct ofproto
*ofproto
,
3133 bool *arp_match_ip
, uint64_t *ofpacts
)
3135 struct ofputil_table_features
*features
, *f
;
3137 *arp_match_ip
= false;
3140 query_tables(ofproto
, &features
, NULL
);
3141 for (f
= features
; f
< &features
[ofproto
->n_tables
]; f
++) {
3142 *ofpacts
|= f
->nonmiss
.apply
.ofpacts
| f
->miss
.apply
.ofpacts
;
3143 if (bitmap_is_set(f
->match
.bm
, MFF_ARP_SPA
) ||
3144 bitmap_is_set(f
->match
.bm
, MFF_ARP_TPA
)) {
3145 *arp_match_ip
= true;
3151 ovs_assert(*ofpacts
& (UINT64_C(1) << OFPACT_OUTPUT
));
3155 handle_features_request(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
3157 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
3158 struct ofputil_switch_features features
;
3159 struct ofport
*port
;
3163 query_switch_features(ofproto
, &arp_match_ip
, &features
.ofpacts
);
3165 features
.datapath_id
= ofproto
->datapath_id
;
3166 features
.n_buffers
= pktbuf_capacity();
3167 features
.n_tables
= ofproto_get_n_visible_tables(ofproto
);
3168 features
.capabilities
= (OFPUTIL_C_FLOW_STATS
| OFPUTIL_C_TABLE_STATS
|
3169 OFPUTIL_C_PORT_STATS
| OFPUTIL_C_QUEUE_STATS
|
3170 OFPUTIL_C_GROUP_STATS
);
3172 features
.capabilities
|= OFPUTIL_C_ARP_MATCH_IP
;
3174 /* FIXME: Fill in proper features.auxiliary_id for auxiliary connections */
3175 features
.auxiliary_id
= 0;
3176 b
= ofputil_encode_switch_features(&features
, ofconn_get_protocol(ofconn
),
3178 HMAP_FOR_EACH (port
, hmap_node
, &ofproto
->ports
) {
3179 ofputil_put_switch_features_port(&port
->pp
, b
);
3182 ofconn_send_reply(ofconn
, b
);
3187 handle_get_config_request(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
3189 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
3190 struct ofp_switch_config
*osc
;
3191 enum ofp_config_flags flags
;
3195 buf
= ofpraw_alloc_reply(OFPRAW_OFPT_GET_CONFIG_REPLY
, oh
, 0);
3196 osc
= ofpbuf_put_uninit(buf
, sizeof *osc
);
3197 flags
= ofproto
->frag_handling
;
3198 /* OFPC_INVALID_TTL_TO_CONTROLLER is deprecated in OF 1.3 */
3199 if (oh
->version
< OFP13_VERSION
3200 && ofconn_get_invalid_ttl_to_controller(ofconn
)) {
3201 flags
|= OFPC_INVALID_TTL_TO_CONTROLLER
;
3203 osc
->flags
= htons(flags
);
3204 osc
->miss_send_len
= htons(ofconn_get_miss_send_len(ofconn
));
3205 ofconn_send_reply(ofconn
, buf
);
3211 handle_set_config(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
3213 const struct ofp_switch_config
*osc
= ofpmsg_body(oh
);
3214 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
3215 uint16_t flags
= ntohs(osc
->flags
);
3217 if (ofconn_get_type(ofconn
) != OFCONN_PRIMARY
3218 || ofconn_get_role(ofconn
) != OFPCR12_ROLE_SLAVE
) {
3219 enum ofp_config_flags cur
= ofproto
->frag_handling
;
3220 enum ofp_config_flags next
= flags
& OFPC_FRAG_MASK
;
3222 ovs_assert((cur
& OFPC_FRAG_MASK
) == cur
);
3224 if (ofproto
->ofproto_class
->set_frag_handling(ofproto
, next
)) {
3225 ofproto
->frag_handling
= next
;
3227 VLOG_WARN_RL(&rl
, "%s: unsupported fragment handling mode %s",
3229 ofputil_frag_handling_to_string(next
));
3233 /* OFPC_INVALID_TTL_TO_CONTROLLER is deprecated in OF 1.3 */
3234 ofconn_set_invalid_ttl_to_controller(ofconn
,
3235 (oh
->version
< OFP13_VERSION
3236 && flags
& OFPC_INVALID_TTL_TO_CONTROLLER
));
3238 ofconn_set_miss_send_len(ofconn
, ntohs(osc
->miss_send_len
));
3243 /* Checks whether 'ofconn' is a slave controller. If so, returns an OpenFlow
3244 * error message code for the caller to propagate upward. Otherwise, returns
3247 * The log message mentions 'msg_type'. */
3249 reject_slave_controller(struct ofconn
*ofconn
)
3251 if (ofconn_get_type(ofconn
) == OFCONN_PRIMARY
3252 && ofconn_get_role(ofconn
) == OFPCR12_ROLE_SLAVE
) {
3253 return OFPERR_OFPBRC_IS_SLAVE
;
3259 /* Checks that the 'ofpacts_len' bytes of action in 'ofpacts' are appropriate
3262 * - If they use a meter, then 'ofproto' has that meter configured.
3264 * - If they use any groups, then 'ofproto' has that group configured.
3266 * Returns 0 if successful, otherwise an OpenFlow error. */
3268 ofproto_check_ofpacts(struct ofproto
*ofproto
,
3269 const struct ofpact ofpacts
[], size_t ofpacts_len
)
3271 const struct ofpact
*a
;
3274 mid
= ofpacts_get_meter(ofpacts
, ofpacts_len
);
3275 if (mid
&& get_provider_meter_id(ofproto
, mid
) == UINT32_MAX
) {
3276 return OFPERR_OFPMMFC_INVALID_METER
;
3279 OFPACT_FOR_EACH (a
, ofpacts
, ofpacts_len
) {
3280 if (a
->type
== OFPACT_GROUP
3281 && !ofproto_group_exists(ofproto
, ofpact_get_GROUP(a
)->group_id
)) {
3282 return OFPERR_OFPBAC_BAD_OUT_GROUP
;
3290 handle_packet_out(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
3292 struct ofproto
*p
= ofconn_get_ofproto(ofconn
);
3293 struct ofputil_packet_out po
;
3294 struct dp_packet
*payload
;
3295 uint64_t ofpacts_stub
[1024 / 8];
3296 struct ofpbuf ofpacts
;
3300 COVERAGE_INC(ofproto_packet_out
);
3302 error
= reject_slave_controller(ofconn
);
3307 /* Decode message. */
3308 ofpbuf_use_stub(&ofpacts
, ofpacts_stub
, sizeof ofpacts_stub
);
3309 error
= ofputil_decode_packet_out(&po
, oh
, &ofpacts
);
3311 goto exit_free_ofpacts
;
3313 if (ofp_to_u16(po
.in_port
) >= p
->max_ports
3314 && ofp_to_u16(po
.in_port
) < ofp_to_u16(OFPP_MAX
)) {
3315 error
= OFPERR_OFPBRC_BAD_PORT
;
3316 goto exit_free_ofpacts
;
3320 if (po
.buffer_id
!= UINT32_MAX
) {
3321 error
= ofconn_pktbuf_retrieve(ofconn
, po
.buffer_id
, &payload
, NULL
);
3322 if (error
|| !payload
) {
3323 goto exit_free_ofpacts
;
3326 /* Ensure that the L3 header is 32-bit aligned. */
3327 payload
= dp_packet_clone_data_with_headroom(po
.packet
, po
.packet_len
, 2);
3330 /* Verify actions against packet, then send packet if successful. */
3331 flow_extract(payload
, &flow
);
3332 flow
.in_port
.ofp_port
= po
.in_port
;
3333 error
= ofproto_check_ofpacts(p
, po
.ofpacts
, po
.ofpacts_len
);
3335 error
= p
->ofproto_class
->packet_out(p
, payload
, &flow
,
3336 po
.ofpacts
, po
.ofpacts_len
);
3338 dp_packet_delete(payload
);
3341 ofpbuf_uninit(&ofpacts
);
3347 update_port_config(struct ofconn
*ofconn
, struct ofport
*port
,
3348 enum ofputil_port_config config
,
3349 enum ofputil_port_config mask
)
3351 enum ofputil_port_config toggle
= (config
^ port
->pp
.config
) & mask
;
3353 if (toggle
& OFPUTIL_PC_PORT_DOWN
3354 && (config
& OFPUTIL_PC_PORT_DOWN
3355 ? netdev_turn_flags_off(port
->netdev
, NETDEV_UP
, NULL
)
3356 : netdev_turn_flags_on(port
->netdev
, NETDEV_UP
, NULL
))) {
3357 /* We tried to bring the port up or down, but it failed, so don't
3358 * update the "down" bit. */
3359 toggle
&= ~OFPUTIL_PC_PORT_DOWN
;
3363 enum ofputil_port_config old_config
= port
->pp
.config
;
3364 port
->pp
.config
^= toggle
;
3365 port
->ofproto
->ofproto_class
->port_reconfigured(port
, old_config
);
3366 connmgr_send_port_status(port
->ofproto
->connmgr
, ofconn
, &port
->pp
,
3372 handle_port_mod(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
3374 struct ofproto
*p
= ofconn_get_ofproto(ofconn
);
3375 struct ofputil_port_mod pm
;
3376 struct ofport
*port
;
3379 error
= reject_slave_controller(ofconn
);
3384 error
= ofputil_decode_port_mod(oh
, &pm
, false);
3389 port
= ofproto_get_port(p
, pm
.port_no
);
3391 return OFPERR_OFPPMFC_BAD_PORT
;
3392 } else if (!eth_addr_equals(port
->pp
.hw_addr
, pm
.hw_addr
)) {
3393 return OFPERR_OFPPMFC_BAD_HW_ADDR
;
3395 update_port_config(ofconn
, port
, pm
.config
, pm
.mask
);
3397 netdev_set_advertisements(port
->netdev
, pm
.advertise
);
3404 handle_desc_stats_request(struct ofconn
*ofconn
,
3405 const struct ofp_header
*request
)
3407 static const char *default_mfr_desc
= "Nicira, Inc.";
3408 static const char *default_hw_desc
= "Open vSwitch";
3409 static const char *default_sw_desc
= VERSION
;
3410 static const char *default_serial_desc
= "None";
3411 static const char *default_dp_desc
= "None";
3413 struct ofproto
*p
= ofconn_get_ofproto(ofconn
);
3414 struct ofp_desc_stats
*ods
;
3417 msg
= ofpraw_alloc_stats_reply(request
, 0);
3418 ods
= ofpbuf_put_zeros(msg
, sizeof *ods
);
3419 ovs_strlcpy(ods
->mfr_desc
, p
->mfr_desc
? p
->mfr_desc
: default_mfr_desc
,
3420 sizeof ods
->mfr_desc
);
3421 ovs_strlcpy(ods
->hw_desc
, p
->hw_desc
? p
->hw_desc
: default_hw_desc
,
3422 sizeof ods
->hw_desc
);
3423 ovs_strlcpy(ods
->sw_desc
, p
->sw_desc
? p
->sw_desc
: default_sw_desc
,
3424 sizeof ods
->sw_desc
);
3425 ovs_strlcpy(ods
->serial_num
,
3426 p
->serial_desc
? p
->serial_desc
: default_serial_desc
,
3427 sizeof ods
->serial_num
);
3428 ovs_strlcpy(ods
->dp_desc
, p
->dp_desc
? p
->dp_desc
: default_dp_desc
,
3429 sizeof ods
->dp_desc
);
3430 ofconn_send_reply(ofconn
, msg
);
3436 handle_table_stats_request(struct ofconn
*ofconn
,
3437 const struct ofp_header
*request
)
3439 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
3440 struct ofputil_table_features
*features
;
3441 struct ofputil_table_stats
*stats
;
3442 struct ofpbuf
*reply
;
3445 query_tables(ofproto
, &features
, &stats
);
3447 reply
= ofputil_encode_table_stats_reply(request
);
3448 for (i
= 0; i
< ofproto
->n_tables
; i
++) {
3449 if (!(ofproto
->tables
[i
].flags
& OFTABLE_HIDDEN
)) {
3450 ofputil_append_table_stats_reply(reply
, &stats
[i
], &features
[i
]);
3453 ofconn_send_reply(ofconn
, reply
);
3462 handle_table_features_request(struct ofconn
*ofconn
,
3463 const struct ofp_header
*request
)
3465 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
3466 struct ofputil_table_features
*features
;
3467 struct ovs_list replies
;
3471 ofpbuf_use_const(&msg
, request
, ntohs(request
->length
));
3472 ofpraw_pull_assert(&msg
);
3473 if (msg
.size
|| ofpmp_more(request
)) {
3474 return OFPERR_OFPTFFC_EPERM
;
3477 query_tables(ofproto
, &features
, NULL
);
3479 ofpmp_init(&replies
, request
);
3480 for (i
= 0; i
< ofproto
->n_tables
; i
++) {
3481 if (!(ofproto
->tables
[i
].flags
& OFTABLE_HIDDEN
)) {
3482 ofputil_append_table_features_reply(&features
[i
], &replies
);
3485 ofconn_send_replies(ofconn
, &replies
);
3493 append_port_stat(struct ofport
*port
, struct ovs_list
*replies
)
3495 struct ofputil_port_stats ops
= { .port_no
= port
->pp
.port_no
};
3497 calc_duration(port
->created
, time_msec(),
3498 &ops
.duration_sec
, &ops
.duration_nsec
);
3500 /* Intentionally ignore return value, since errors will set
3501 * 'stats' to all-1s, which is correct for OpenFlow, and
3502 * netdev_get_stats() will log errors. */
3503 ofproto_port_get_stats(port
, &ops
.stats
);
3505 ofputil_append_port_stat(replies
, &ops
);
3509 handle_port_request(struct ofconn
*ofconn
,
3510 const struct ofp_header
*request
, ofp_port_t port_no
,
3511 void (*cb
)(struct ofport
*, struct ovs_list
*replies
))
3513 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
3514 struct ofport
*port
;
3515 struct ovs_list replies
;
3517 ofpmp_init(&replies
, request
);
3518 if (port_no
!= OFPP_ANY
) {
3519 port
= ofproto_get_port(ofproto
, port_no
);
3524 HMAP_FOR_EACH (port
, hmap_node
, &ofproto
->ports
) {
3529 ofconn_send_replies(ofconn
, &replies
);
3533 handle_port_stats_request(struct ofconn
*ofconn
,
3534 const struct ofp_header
*request
)
3539 error
= ofputil_decode_port_stats_request(request
, &port_no
);
3541 handle_port_request(ofconn
, request
, port_no
, append_port_stat
);
3547 append_port_desc(struct ofport
*port
, struct ovs_list
*replies
)
3549 ofputil_append_port_desc_stats_reply(&port
->pp
, replies
);
3553 handle_port_desc_stats_request(struct ofconn
*ofconn
,
3554 const struct ofp_header
*request
)
3559 error
= ofputil_decode_port_desc_stats_request(request
, &port_no
);
3561 handle_port_request(ofconn
, request
, port_no
, append_port_desc
);
3567 hash_cookie(ovs_be64 cookie
)
3569 return hash_uint64((OVS_FORCE
uint64_t)cookie
);
3573 cookies_insert(struct ofproto
*ofproto
, struct rule
*rule
)
3574 OVS_REQUIRES(ofproto_mutex
)
3576 hindex_insert(&ofproto
->cookies
, &rule
->cookie_node
,
3577 hash_cookie(rule
->flow_cookie
));
3581 cookies_remove(struct ofproto
*ofproto
, struct rule
*rule
)
3582 OVS_REQUIRES(ofproto_mutex
)
3584 hindex_remove(&ofproto
->cookies
, &rule
->cookie_node
);
3588 calc_duration(long long int start
, long long int now
,
3589 uint32_t *sec
, uint32_t *nsec
)
3591 long long int msecs
= now
- start
;
3592 *sec
= msecs
/ 1000;
3593 *nsec
= (msecs
% 1000) * (1000 * 1000);
3596 /* Checks whether 'table_id' is 0xff or a valid table ID in 'ofproto'. Returns
3597 * true if 'table_id' is OK, false otherwise. */
3599 check_table_id(const struct ofproto
*ofproto
, uint8_t table_id
)
3601 return table_id
== OFPTT_ALL
|| table_id
< ofproto
->n_tables
;
3604 static struct oftable
*
3605 next_visible_table(const struct ofproto
*ofproto
, uint8_t table_id
)
3607 struct oftable
*table
;
3609 for (table
= &ofproto
->tables
[table_id
];
3610 table
< &ofproto
->tables
[ofproto
->n_tables
];
3612 if (!(table
->flags
& OFTABLE_HIDDEN
)) {
3620 static struct oftable
*
3621 first_matching_table(const struct ofproto
*ofproto
, uint8_t table_id
)
3623 if (table_id
== 0xff) {
3624 return next_visible_table(ofproto
, 0);
3625 } else if (table_id
< ofproto
->n_tables
) {
3626 return &ofproto
->tables
[table_id
];
3632 static struct oftable
*
3633 next_matching_table(const struct ofproto
*ofproto
,
3634 const struct oftable
*table
, uint8_t table_id
)
3636 return (table_id
== 0xff
3637 ? next_visible_table(ofproto
, (table
- ofproto
->tables
) + 1)
3641 /* Assigns TABLE to each oftable, in turn, that matches TABLE_ID in OFPROTO:
3643 * - If TABLE_ID is 0xff, this iterates over every classifier table in
3644 * OFPROTO, skipping tables marked OFTABLE_HIDDEN.
3646 * - If TABLE_ID is the number of a table in OFPROTO, then the loop iterates
3647 * only once, for that table. (This can be used to access tables marked
3650 * - Otherwise, TABLE_ID isn't valid for OFPROTO, so the loop won't be
3651 * entered at all. (Perhaps you should have validated TABLE_ID with
3652 * check_table_id().)
3654 * All parameters are evaluated multiple times.
3656 #define FOR_EACH_MATCHING_TABLE(TABLE, TABLE_ID, OFPROTO) \
3657 for ((TABLE) = first_matching_table(OFPROTO, TABLE_ID); \
3659 (TABLE) = next_matching_table(OFPROTO, TABLE, TABLE_ID))
3661 /* Initializes 'criteria' in a straightforward way based on the other
3664 * By default, the criteria include flows that are read-only, on the assumption
3665 * that the collected flows won't be modified. Call rule_criteria_require_rw()
3666 * if flows will be modified.
3668 * For "loose" matching, the 'priority' parameter is unimportant and may be
3671 rule_criteria_init(struct rule_criteria
*criteria
, uint8_t table_id
,
3672 const struct match
*match
, int priority
,
3673 ovs_be64 cookie
, ovs_be64 cookie_mask
,
3674 ofp_port_t out_port
, uint32_t out_group
)
3676 criteria
->table_id
= table_id
;
3677 cls_rule_init(&criteria
->cr
, match
, priority
);
3678 criteria
->cookie
= cookie
;
3679 criteria
->cookie_mask
= cookie_mask
;
3680 criteria
->out_port
= out_port
;
3681 criteria
->out_group
= out_group
;
3683 /* We ordinarily want to skip hidden rules, but there has to be a way for
3684 * code internal to OVS to modify and delete them, so if the criteria
3685 * specify a priority that can only be for a hidden flow, then allow hidden
3686 * rules to be selected. (This doesn't allow OpenFlow clients to meddle
3687 * with hidden flows because OpenFlow uses only a 16-bit field to specify
3689 criteria
->include_hidden
= priority
> UINT16_MAX
;
3691 /* We assume that the criteria are being used to collect flows for reading
3692 * but not modification. Thus, we should collect read-only flows. */
3693 criteria
->include_readonly
= true;
3696 /* By default, criteria initialized by rule_criteria_init() will match flows
3697 * that are read-only, on the assumption that the collected flows won't be
3698 * modified. Call this function to match only flows that are be modifiable.
3700 * Specify 'can_write_readonly' as false in ordinary circumstances, true if the
3701 * caller has special privileges that allow it to modify even "read-only"
3704 rule_criteria_require_rw(struct rule_criteria
*criteria
,
3705 bool can_write_readonly
)
3707 criteria
->include_readonly
= can_write_readonly
;
3711 rule_criteria_destroy(struct rule_criteria
*criteria
)
3713 cls_rule_destroy(&criteria
->cr
);
3717 rule_collection_init(struct rule_collection
*rules
)
3719 rules
->rules
= rules
->stub
;
3721 rules
->capacity
= ARRAY_SIZE(rules
->stub
);
3725 rule_collection_add(struct rule_collection
*rules
, struct rule
*rule
)
3727 if (rules
->n
>= rules
->capacity
) {
3728 size_t old_size
, new_size
;
3730 old_size
= rules
->capacity
* sizeof *rules
->rules
;
3731 rules
->capacity
*= 2;
3732 new_size
= rules
->capacity
* sizeof *rules
->rules
;
3734 if (rules
->rules
== rules
->stub
) {
3735 rules
->rules
= xmalloc(new_size
);
3736 memcpy(rules
->rules
, rules
->stub
, old_size
);
3738 rules
->rules
= xrealloc(rules
->rules
, new_size
);
3742 rules
->rules
[rules
->n
++] = rule
;
3746 rule_collection_ref(struct rule_collection
*rules
)
3747 OVS_REQUIRES(ofproto_mutex
)
3751 for (i
= 0; i
< rules
->n
; i
++) {
3752 ofproto_rule_ref(rules
->rules
[i
]);
3757 rule_collection_unref(struct rule_collection
*rules
)
3761 for (i
= 0; i
< rules
->n
; i
++) {
3762 ofproto_rule_unref(rules
->rules
[i
]);
3767 rule_collection_destroy(struct rule_collection
*rules
)
3769 if (rules
->rules
!= rules
->stub
) {
3773 /* Make repeated destruction harmless. */
3774 rule_collection_init(rules
);
3777 /* Checks whether 'rule' matches 'c' and, if so, adds it to 'rules'. This
3778 * function verifies most of the criteria in 'c' itself, but the caller must
3779 * check 'c->cr' itself.
3781 * Increments '*n_readonly' if 'rule' wasn't added because it's read-only (and
3782 * 'c' only includes modifiable rules). */
3784 collect_rule(struct rule
*rule
, const struct rule_criteria
*c
,
3785 struct rule_collection
*rules
, size_t *n_readonly
)
3786 OVS_REQUIRES(ofproto_mutex
)
3788 if ((c
->table_id
== rule
->table_id
|| c
->table_id
== 0xff)
3789 && ofproto_rule_has_out_port(rule
, c
->out_port
)
3790 && ofproto_rule_has_out_group(rule
, c
->out_group
)
3791 && !((rule
->flow_cookie
^ c
->cookie
) & c
->cookie_mask
)
3792 && (!rule_is_hidden(rule
) || c
->include_hidden
)) {
3793 /* Rule matches all the criteria... */
3794 if (!rule_is_readonly(rule
) || c
->include_readonly
) {
3796 rule_collection_add(rules
, rule
);
3798 /* ...except it's read-only. */
3804 /* Searches 'ofproto' for rules that match the criteria in 'criteria'. Matches
3805 * on classifiers rules are done in the "loose" way required for OpenFlow
3806 * OFPFC_MODIFY and OFPFC_DELETE requests. Puts the selected rules on list
3809 * Returns 0 on success, otherwise an OpenFlow error code. */
3811 collect_rules_loose(struct ofproto
*ofproto
,
3812 const struct rule_criteria
*criteria
,
3813 struct rule_collection
*rules
)
3814 OVS_REQUIRES(ofproto_mutex
)
3816 struct oftable
*table
;
3817 enum ofperr error
= 0;
3818 size_t n_readonly
= 0;
3820 rule_collection_init(rules
);
3822 if (!check_table_id(ofproto
, criteria
->table_id
)) {
3823 error
= OFPERR_OFPBRC_BAD_TABLE_ID
;
3827 if (criteria
->cookie_mask
== OVS_BE64_MAX
) {
3830 HINDEX_FOR_EACH_WITH_HASH (rule
, cookie_node
,
3831 hash_cookie(criteria
->cookie
),
3832 &ofproto
->cookies
) {
3833 if (cls_rule_is_loose_match(&rule
->cr
, &criteria
->cr
.match
)) {
3834 collect_rule(rule
, criteria
, rules
, &n_readonly
);
3838 FOR_EACH_MATCHING_TABLE (table
, criteria
->table_id
, ofproto
) {
3841 CLS_FOR_EACH_TARGET (rule
, cr
, &table
->cls
, &criteria
->cr
) {
3842 collect_rule(rule
, criteria
, rules
, &n_readonly
);
3848 if (!error
&& !rules
->n
&& n_readonly
) {
3849 /* We didn't find any rules to modify. We did find some read-only
3850 * rules that we're not allowed to modify, so report that. */
3851 error
= OFPERR_OFPBRC_EPERM
;
3854 rule_collection_destroy(rules
);
3859 /* Searches 'ofproto' for rules that match the criteria in 'criteria'. Matches
3860 * on classifiers rules are done in the "strict" way required for OpenFlow
3861 * OFPFC_MODIFY_STRICT and OFPFC_DELETE_STRICT requests. Puts the selected
3862 * rules on list 'rules'.
3864 * Returns 0 on success, otherwise an OpenFlow error code. */
3866 collect_rules_strict(struct ofproto
*ofproto
,
3867 const struct rule_criteria
*criteria
,
3868 struct rule_collection
*rules
)
3869 OVS_REQUIRES(ofproto_mutex
)
3871 struct oftable
*table
;
3872 size_t n_readonly
= 0;
3873 enum ofperr error
= 0;
3875 rule_collection_init(rules
);
3877 if (!check_table_id(ofproto
, criteria
->table_id
)) {
3878 error
= OFPERR_OFPBRC_BAD_TABLE_ID
;
3882 if (criteria
->cookie_mask
== OVS_BE64_MAX
) {
3885 HINDEX_FOR_EACH_WITH_HASH (rule
, cookie_node
,
3886 hash_cookie(criteria
->cookie
),
3887 &ofproto
->cookies
) {
3888 if (cls_rule_equal(&rule
->cr
, &criteria
->cr
)) {
3889 collect_rule(rule
, criteria
, rules
, &n_readonly
);
3893 FOR_EACH_MATCHING_TABLE (table
, criteria
->table_id
, ofproto
) {
3896 rule
= rule_from_cls_rule(classifier_find_rule_exactly(
3897 &table
->cls
, &criteria
->cr
));
3899 collect_rule(rule
, criteria
, rules
, &n_readonly
);
3905 if (!error
&& !rules
->n
&& n_readonly
) {
3906 /* We didn't find any rules to modify. We did find some read-only
3907 * rules that we're not allowed to modify, so report that. */
3908 error
= OFPERR_OFPBRC_EPERM
;
3911 rule_collection_destroy(rules
);
3916 /* Returns 'age_ms' (a duration in milliseconds), converted to seconds and
3917 * forced into the range of a uint16_t. */
3919 age_secs(long long int age_ms
)
3921 return (age_ms
< 0 ? 0
3922 : age_ms
>= UINT16_MAX
* 1000 ? UINT16_MAX
3923 : (unsigned int) age_ms
/ 1000);
3927 handle_flow_stats_request(struct ofconn
*ofconn
,
3928 const struct ofp_header
*request
)
3929 OVS_EXCLUDED(ofproto_mutex
)
3931 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
3932 struct ofputil_flow_stats_request fsr
;
3933 struct rule_criteria criteria
;
3934 struct rule_collection rules
;
3935 struct ovs_list replies
;
3939 error
= ofputil_decode_flow_stats_request(&fsr
, request
);
3944 rule_criteria_init(&criteria
, fsr
.table_id
, &fsr
.match
, 0, fsr
.cookie
,
3945 fsr
.cookie_mask
, fsr
.out_port
, fsr
.out_group
);
3947 ovs_mutex_lock(&ofproto_mutex
);
3948 error
= collect_rules_loose(ofproto
, &criteria
, &rules
);
3949 rule_criteria_destroy(&criteria
);
3951 rule_collection_ref(&rules
);
3953 ovs_mutex_unlock(&ofproto_mutex
);
3959 ofpmp_init(&replies
, request
);
3960 for (i
= 0; i
< rules
.n
; i
++) {
3961 struct rule
*rule
= rules
.rules
[i
];
3962 long long int now
= time_msec();
3963 struct ofputil_flow_stats fs
;
3964 long long int created
, used
, modified
;
3965 const struct rule_actions
*actions
;
3966 enum ofputil_flow_mod_flags flags
;
3968 ovs_mutex_lock(&rule
->mutex
);
3969 fs
.cookie
= rule
->flow_cookie
;
3970 fs
.idle_timeout
= rule
->idle_timeout
;
3971 fs
.hard_timeout
= rule
->hard_timeout
;
3972 fs
.importance
= rule
->importance
;
3973 created
= rule
->created
;
3974 modified
= rule
->modified
;
3975 actions
= rule_get_actions(rule
);
3976 flags
= rule
->flags
;
3977 ovs_mutex_unlock(&rule
->mutex
);
3979 ofproto
->ofproto_class
->rule_get_stats(rule
, &fs
.packet_count
,
3980 &fs
.byte_count
, &used
);
3982 minimatch_expand(&rule
->cr
.match
, &fs
.match
);
3983 fs
.table_id
= rule
->table_id
;
3984 calc_duration(created
, now
, &fs
.duration_sec
, &fs
.duration_nsec
);
3985 fs
.priority
= rule
->cr
.priority
;
3986 fs
.idle_age
= age_secs(now
- used
);
3987 fs
.hard_age
= age_secs(now
- modified
);
3988 fs
.ofpacts
= actions
->ofpacts
;
3989 fs
.ofpacts_len
= actions
->ofpacts_len
;
3992 ofputil_append_flow_stats_reply(&fs
, &replies
);
3995 rule_collection_unref(&rules
);
3996 rule_collection_destroy(&rules
);
3998 ofconn_send_replies(ofconn
, &replies
);
4004 flow_stats_ds(struct rule
*rule
, struct ds
*results
)
4006 uint64_t packet_count
, byte_count
;
4007 const struct rule_actions
*actions
;
4008 long long int created
, used
;
4010 rule
->ofproto
->ofproto_class
->rule_get_stats(rule
, &packet_count
,
4011 &byte_count
, &used
);
4013 ovs_mutex_lock(&rule
->mutex
);
4014 actions
= rule_get_actions(rule
);
4015 created
= rule
->created
;
4016 ovs_mutex_unlock(&rule
->mutex
);
4018 if (rule
->table_id
!= 0) {
4019 ds_put_format(results
, "table_id=%"PRIu8
", ", rule
->table_id
);
4021 ds_put_format(results
, "duration=%llds, ", (time_msec() - created
) / 1000);
4022 ds_put_format(results
, "n_packets=%"PRIu64
", ", packet_count
);
4023 ds_put_format(results
, "n_bytes=%"PRIu64
", ", byte_count
);
4024 cls_rule_format(&rule
->cr
, results
);
4025 ds_put_char(results
, ',');
4027 ds_put_cstr(results
, "actions=");
4028 ofpacts_format(actions
->ofpacts
, actions
->ofpacts_len
, results
);
4030 ds_put_cstr(results
, "\n");
4033 /* Adds a pretty-printed description of all flows to 'results', including
4034 * hidden flows (e.g., set up by in-band control). */
4036 ofproto_get_all_flows(struct ofproto
*p
, struct ds
*results
)
4038 struct oftable
*table
;
4040 OFPROTO_FOR_EACH_TABLE (table
, p
) {
4043 CLS_FOR_EACH (rule
, cr
, &table
->cls
) {
4044 flow_stats_ds(rule
, results
);
4049 /* Obtains the NetFlow engine type and engine ID for 'ofproto' into
4050 * '*engine_type' and '*engine_id', respectively. */
4052 ofproto_get_netflow_ids(const struct ofproto
*ofproto
,
4053 uint8_t *engine_type
, uint8_t *engine_id
)
4055 ofproto
->ofproto_class
->get_netflow_ids(ofproto
, engine_type
, engine_id
);
4058 /* Checks the status change of CFM on 'ofport'.
4060 * Returns true if 'ofproto_class' does not support 'cfm_status_changed'. */
4062 ofproto_port_cfm_status_changed(struct ofproto
*ofproto
, ofp_port_t ofp_port
)
4064 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
4065 return (ofport
&& ofproto
->ofproto_class
->cfm_status_changed
4066 ? ofproto
->ofproto_class
->cfm_status_changed(ofport
)
4070 /* Checks the status of CFM configured on 'ofp_port' within 'ofproto'.
4071 * Returns 0 if the port's CFM status was successfully stored into
4072 * '*status'. Returns positive errno if the port did not have CFM
4075 * The caller must provide and own '*status', and must free 'status->rmps'.
4076 * '*status' is indeterminate if the return value is non-zero. */
4078 ofproto_port_get_cfm_status(const struct ofproto
*ofproto
, ofp_port_t ofp_port
,
4079 struct cfm_status
*status
)
4081 struct ofport
*ofport
= ofproto_get_port(ofproto
, ofp_port
);
4082 return (ofport
&& ofproto
->ofproto_class
->get_cfm_status
4083 ? ofproto
->ofproto_class
->get_cfm_status(ofport
, status
)
4088 handle_aggregate_stats_request(struct ofconn
*ofconn
,
4089 const struct ofp_header
*oh
)
4090 OVS_EXCLUDED(ofproto_mutex
)
4092 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
4093 struct ofputil_flow_stats_request request
;
4094 struct ofputil_aggregate_stats stats
;
4095 bool unknown_packets
, unknown_bytes
;
4096 struct rule_criteria criteria
;
4097 struct rule_collection rules
;
4098 struct ofpbuf
*reply
;
4102 error
= ofputil_decode_flow_stats_request(&request
, oh
);
4107 rule_criteria_init(&criteria
, request
.table_id
, &request
.match
, 0,
4108 request
.cookie
, request
.cookie_mask
,
4109 request
.out_port
, request
.out_group
);
4111 ovs_mutex_lock(&ofproto_mutex
);
4112 error
= collect_rules_loose(ofproto
, &criteria
, &rules
);
4113 rule_criteria_destroy(&criteria
);
4115 rule_collection_ref(&rules
);
4117 ovs_mutex_unlock(&ofproto_mutex
);
4123 memset(&stats
, 0, sizeof stats
);
4124 unknown_packets
= unknown_bytes
= false;
4125 for (i
= 0; i
< rules
.n
; i
++) {
4126 struct rule
*rule
= rules
.rules
[i
];
4127 uint64_t packet_count
;
4128 uint64_t byte_count
;
4131 ofproto
->ofproto_class
->rule_get_stats(rule
, &packet_count
,
4132 &byte_count
, &used
);
4134 if (packet_count
== UINT64_MAX
) {
4135 unknown_packets
= true;
4137 stats
.packet_count
+= packet_count
;
4140 if (byte_count
== UINT64_MAX
) {
4141 unknown_bytes
= true;
4143 stats
.byte_count
+= byte_count
;
4148 if (unknown_packets
) {
4149 stats
.packet_count
= UINT64_MAX
;
4151 if (unknown_bytes
) {
4152 stats
.byte_count
= UINT64_MAX
;
4155 rule_collection_unref(&rules
);
4156 rule_collection_destroy(&rules
);
4158 reply
= ofputil_encode_aggregate_stats_reply(&stats
, oh
);
4159 ofconn_send_reply(ofconn
, reply
);
4164 struct queue_stats_cbdata
{
4165 struct ofport
*ofport
;
4166 struct ovs_list replies
;
4171 put_queue_stats(struct queue_stats_cbdata
*cbdata
, uint32_t queue_id
,
4172 const struct netdev_queue_stats
*stats
)
4174 struct ofputil_queue_stats oqs
;
4176 oqs
.port_no
= cbdata
->ofport
->pp
.port_no
;
4177 oqs
.queue_id
= queue_id
;
4178 oqs
.tx_bytes
= stats
->tx_bytes
;
4179 oqs
.tx_packets
= stats
->tx_packets
;
4180 oqs
.tx_errors
= stats
->tx_errors
;
4181 if (stats
->created
!= LLONG_MIN
) {
4182 calc_duration(stats
->created
, cbdata
->now
,
4183 &oqs
.duration_sec
, &oqs
.duration_nsec
);
4185 oqs
.duration_sec
= oqs
.duration_nsec
= UINT32_MAX
;
4187 ofputil_append_queue_stat(&cbdata
->replies
, &oqs
);
4191 handle_queue_stats_dump_cb(uint32_t queue_id
,
4192 struct netdev_queue_stats
*stats
,
4195 struct queue_stats_cbdata
*cbdata
= cbdata_
;
4197 put_queue_stats(cbdata
, queue_id
, stats
);
4201 handle_queue_stats_for_port(struct ofport
*port
, uint32_t queue_id
,
4202 struct queue_stats_cbdata
*cbdata
)
4204 cbdata
->ofport
= port
;
4205 if (queue_id
== OFPQ_ALL
) {
4206 netdev_dump_queue_stats(port
->netdev
,
4207 handle_queue_stats_dump_cb
, cbdata
);
4209 struct netdev_queue_stats stats
;
4211 if (!netdev_get_queue_stats(port
->netdev
, queue_id
, &stats
)) {
4212 put_queue_stats(cbdata
, queue_id
, &stats
);
4214 return OFPERR_OFPQOFC_BAD_QUEUE
;
4221 handle_queue_stats_request(struct ofconn
*ofconn
,
4222 const struct ofp_header
*rq
)
4224 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
4225 struct queue_stats_cbdata cbdata
;
4226 struct ofport
*port
;
4228 struct ofputil_queue_stats_request oqsr
;
4230 COVERAGE_INC(ofproto_queue_req
);
4232 ofpmp_init(&cbdata
.replies
, rq
);
4233 cbdata
.now
= time_msec();
4235 error
= ofputil_decode_queue_stats_request(rq
, &oqsr
);
4240 if (oqsr
.port_no
== OFPP_ANY
) {
4241 error
= OFPERR_OFPQOFC_BAD_QUEUE
;
4242 HMAP_FOR_EACH (port
, hmap_node
, &ofproto
->ports
) {
4243 if (!handle_queue_stats_for_port(port
, oqsr
.queue_id
, &cbdata
)) {
4248 port
= ofproto_get_port(ofproto
, oqsr
.port_no
);
4250 ? handle_queue_stats_for_port(port
, oqsr
.queue_id
, &cbdata
)
4251 : OFPERR_OFPQOFC_BAD_PORT
);
4254 ofconn_send_replies(ofconn
, &cbdata
.replies
);
4256 ofpbuf_list_delete(&cbdata
.replies
);
4263 evict_rules_from_table(struct oftable
*table
, unsigned int extra_space
)
4264 OVS_REQUIRES(ofproto_mutex
)
4266 enum ofperr error
= 0;
4267 struct rule_collection rules
;
4268 unsigned int count
= classifier_count(&table
->cls
) + extra_space
;
4269 unsigned int max_flows
= table
->max_flows
;
4271 rule_collection_init(&rules
);
4273 while (count
-- > max_flows
) {
4276 if (!choose_rule_to_evict(table
, &rule
)) {
4277 error
= OFPERR_OFPFMFC_TABLE_FULL
;
4280 eviction_group_remove_rule(rule
);
4281 rule_collection_add(&rules
, rule
);
4284 delete_flows__(&rules
, OFPRR_EVICTION
, NULL
);
4285 rule_collection_destroy(&rules
);
4291 is_conjunction(const struct ofpact
*ofpacts
, size_t ofpacts_len
)
4293 return ofpacts_len
> 0 && ofpacts
->type
== OFPACT_CONJUNCTION
;
4297 get_conjunctions(const struct ofputil_flow_mod
*fm
,
4298 struct cls_conjunction
**conjsp
, size_t *n_conjsp
)
4299 OVS_REQUIRES(ofproto_mutex
)
4301 struct cls_conjunction
*conjs
= NULL
;
4304 if (is_conjunction(fm
->ofpacts
, fm
->ofpacts_len
)) {
4305 const struct ofpact
*ofpact
;
4309 OFPACT_FOR_EACH (ofpact
, fm
->ofpacts
, fm
->ofpacts_len
) {
4313 conjs
= xzalloc(n_conjs
* sizeof *conjs
);
4315 OFPACT_FOR_EACH (ofpact
, fm
->ofpacts
, fm
->ofpacts_len
) {
4316 struct ofpact_conjunction
*oc
= ofpact_get_CONJUNCTION(ofpact
);
4317 conjs
[i
].clause
= oc
->clause
;
4318 conjs
[i
].n_clauses
= oc
->n_clauses
;
4319 conjs
[i
].id
= oc
->id
;
4325 *n_conjsp
= n_conjs
;
4329 set_conjunctions(struct rule
*rule
, const struct cls_conjunction
*conjs
,
4331 OVS_REQUIRES(ofproto_mutex
)
4333 struct cls_rule
*cr
= CONST_CAST(struct cls_rule
*, &rule
->cr
);
4335 cls_rule_set_conjunctions(cr
, conjs
, n_conjs
);
4339 add_flow_begin(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
4340 struct rule
**rulep
, bool *modify
)
4341 OVS_REQUIRES(ofproto_mutex
)
4343 struct oftable
*table
;
4347 enum ofperr error
= 0;
4349 if (!check_table_id(ofproto
, fm
->table_id
)) {
4350 error
= OFPERR_OFPBRC_BAD_TABLE_ID
;
4355 if (fm
->table_id
== 0xff) {
4356 if (ofproto
->ofproto_class
->rule_choose_table
) {
4357 error
= ofproto
->ofproto_class
->rule_choose_table(ofproto
,
4363 ovs_assert(table_id
< ofproto
->n_tables
);
4367 } else if (fm
->table_id
< ofproto
->n_tables
) {
4368 table_id
= fm
->table_id
;
4370 return OFPERR_OFPBRC_BAD_TABLE_ID
;
4373 table
= &ofproto
->tables
[table_id
];
4374 if (table
->flags
& OFTABLE_READONLY
4375 && !(fm
->flags
& OFPUTIL_FF_NO_READONLY
)) {
4376 return OFPERR_OFPBRC_EPERM
;
4379 if (!(fm
->flags
& OFPUTIL_FF_HIDDEN_FIELDS
)
4380 && !match_has_default_hidden_fields(&fm
->match
)) {
4381 VLOG_WARN_RL(&rl
, "%s: (add_flow) only internal flows can set "
4382 "non-default values to hidden fields", ofproto
->name
);
4383 return OFPERR_OFPBRC_EPERM
;
4386 cls_rule_init(&cr
, &fm
->match
, fm
->priority
);
4388 /* Check for the existence of an identical rule. */
4389 rule
= rule_from_cls_rule(classifier_find_rule_exactly(&table
->cls
, &cr
));
4391 /* Transform "add" into "modify" of an existing identical flow. */
4392 cls_rule_destroy(&cr
);
4394 fm
->modify_cookie
= true;
4395 error
= modify_flow_check__(ofproto
, fm
, rule
);
4401 } else { /* New rule. */
4402 struct cls_conjunction
*conjs
;
4405 /* Check for overlap, if requested. */
4406 if (fm
->flags
& OFPUTIL_FF_CHECK_OVERLAP
4407 && classifier_rule_overlaps(&table
->cls
, &cr
)) {
4408 cls_rule_destroy(&cr
);
4409 return OFPERR_OFPFMFC_OVERLAP
;
4412 /* If necessary, evict an existing rule to clear out space. */
4413 error
= evict_rules_from_table(table
, 1);
4415 cls_rule_destroy(&cr
);
4419 /* Allocate new rule. */
4420 error
= ofproto_rule_create(ofproto
, fm
, &cr
, table
- ofproto
->tables
,
4426 /* Insert flow to the classifier, so that later flow_mods may relate
4427 * to it. This is reversible, in case later errors require this to
4429 ofproto_rule_insert__(ofproto
, rule
);
4430 /* Make the new rule invisible for classifier lookups. */
4431 classifier_defer(&table
->cls
);
4432 get_conjunctions(fm
, &conjs
, &n_conjs
);
4433 classifier_insert(&table
->cls
, &rule
->cr
, conjs
, n_conjs
);
4436 error
= ofproto
->ofproto_class
->rule_insert(rule
);
4438 oftable_remove_rule(rule
);
4439 ofproto_rule_unref(rule
);
4451 add_flow_finish(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
4452 const struct flow_mod_requester
*req
,
4453 struct rule
*rule
, bool modify
)
4454 OVS_REQUIRES(ofproto_mutex
)
4457 struct ovs_list dead_cookies
= OVS_LIST_INITIALIZER(&dead_cookies
);
4459 modify_flow__(ofproto
, fm
, rule
, req
, &dead_cookies
);
4460 learned_cookies_flush(ofproto
, &dead_cookies
);
4462 struct oftable
*table
= &ofproto
->tables
[rule
->table_id
];
4464 cls_rule_make_visible(&rule
->cr
);
4465 classifier_publish(&table
->cls
);
4467 learned_cookies_inc(ofproto
, rule_get_actions(rule
));
4469 if (minimask_get_vid_mask(&rule
->cr
.match
.mask
) == VLAN_VID_MASK
) {
4470 if (ofproto
->vlan_bitmap
) {
4471 uint16_t vid
= miniflow_get_vid(&rule
->cr
.match
.flow
);
4473 if (!bitmap_is_set(ofproto
->vlan_bitmap
, vid
)) {
4474 bitmap_set1(ofproto
->vlan_bitmap
, vid
);
4475 ofproto
->vlans_changed
= true;
4478 ofproto
->vlans_changed
= true;
4482 ofmonitor_report(ofproto
->connmgr
, rule
, NXFME_ADDED
, 0,
4483 req
? req
->ofconn
: NULL
,
4484 req
? req
->request
->xid
: 0, NULL
);
4487 send_buffered_packet(req
, fm
->buffer_id
, rule
);
4490 /* Implements OFPFC_ADD and the cases for OFPFC_MODIFY and OFPFC_MODIFY_STRICT
4491 * in which no matching flow already exists in the flow table.
4493 * Adds the flow specified by 'fm', to the ofproto's flow table. Returns 0 on
4494 * success, or an OpenFlow error code on failure.
4496 * The caller retains ownership of 'fm->ofpacts'. */
4498 add_flow(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
4499 const struct flow_mod_requester
*req
)
4500 OVS_REQUIRES(ofproto_mutex
)
4506 error
= add_flow_begin(ofproto
, fm
, &rule
, &modify
);
4508 add_flow_finish(ofproto
, fm
, req
, rule
, modify
);
4514 /* OFPFC_MODIFY and OFPFC_MODIFY_STRICT. */
4516 /* Checks if the 'rule' can be modified to match 'fm'.
4518 * Returns 0 on success, otherwise an OpenFlow error code. */
4520 modify_flow_check__(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
4521 const struct rule
*rule
)
4522 OVS_REQUIRES(ofproto_mutex
)
4524 if (ofproto
->ofproto_class
->rule_premodify_actions
) {
4525 return ofproto
->ofproto_class
->rule_premodify_actions(
4526 rule
, fm
->ofpacts
, fm
->ofpacts_len
);
4531 /* Checks if the rules listed in 'rules' can have their actions changed to
4532 * match those in 'fm'.
4534 * Returns 0 on success, otherwise an OpenFlow error code. */
4536 modify_flows_check__(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
4537 const struct rule_collection
*rules
)
4538 OVS_REQUIRES(ofproto_mutex
)
4543 if (ofproto
->ofproto_class
->rule_premodify_actions
) {
4544 for (i
= 0; i
< rules
->n
; i
++) {
4545 error
= modify_flow_check__(ofproto
, fm
, rules
->rules
[i
]);
4555 /* Modifies the 'rule', changing them to match 'fm'. */
4557 modify_flow__(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
4558 struct rule
*rule
, const struct flow_mod_requester
*req
,
4559 struct ovs_list
*dead_cookies
)
4560 OVS_REQUIRES(ofproto_mutex
)
4562 enum nx_flow_update_event event
= fm
->command
== OFPFC_ADD
4563 ? NXFME_ADDED
: NXFME_MODIFIED
;
4565 /* 'fm' says that */
4566 bool change_cookie
= (fm
->modify_cookie
4567 && fm
->new_cookie
!= OVS_BE64_MAX
4568 && fm
->new_cookie
!= rule
->flow_cookie
);
4570 const struct rule_actions
*actions
= rule_get_actions(rule
);
4571 bool change_actions
= !ofpacts_equal(fm
->ofpacts
, fm
->ofpacts_len
,
4573 actions
->ofpacts_len
);
4575 bool reset_counters
= (fm
->flags
& OFPUTIL_FF_RESET_COUNTS
) != 0;
4577 long long int now
= time_msec();
4579 if (change_cookie
) {
4580 cookies_remove(ofproto
, rule
);
4583 ovs_mutex_lock(&rule
->mutex
);
4584 if (fm
->command
== OFPFC_ADD
) {
4585 rule
->idle_timeout
= fm
->idle_timeout
;
4586 rule
->hard_timeout
= fm
->hard_timeout
;
4587 rule
->importance
= fm
->importance
;
4588 rule
->flags
= fm
->flags
& OFPUTIL_FF_STATE
;
4589 rule
->created
= now
;
4591 if (change_cookie
) {
4592 rule
->flow_cookie
= fm
->new_cookie
;
4594 rule
->modified
= now
;
4595 ovs_mutex_unlock(&rule
->mutex
);
4597 if (change_cookie
) {
4598 cookies_insert(ofproto
, rule
);
4600 if (fm
->command
== OFPFC_ADD
) {
4601 if (fm
->idle_timeout
|| fm
->hard_timeout
|| fm
->importance
) {
4602 if (!rule
->eviction_group
) {
4603 eviction_group_add_rule(rule
);
4606 eviction_group_remove_rule(rule
);
4610 if (change_actions
) {
4611 /* We have to change the actions. The rule's conjunctive match set
4612 * is a function of its actions, so we need to update that too. The
4613 * conjunctive match set is used in the lookup process to figure
4614 * which (if any) collection of conjunctive sets the packet matches
4615 * with. However, a rule with conjunction actions is never to be
4616 * returned as a classifier lookup result. To make sure a rule with
4617 * conjunction actions is not returned as a lookup result, we update
4618 * them in a carefully chosen order:
4620 * - If we're adding a conjunctive match set where there wasn't one
4621 * before, we have to make the conjunctive match set available to
4622 * lookups before the rule's actions are changed, as otherwise
4623 * rule with a conjunction action could be returned as a lookup
4626 * - To clear some nonempty conjunctive set, we set the rule's
4627 * actions first, so that a lookup can't return a rule with
4628 * conjunction actions.
4630 * - Otherwise, order doesn't matter for changing one nonempty
4631 * conjunctive match set to some other nonempty set, since the
4632 * rule's actions are not seen by the classifier, and hence don't
4633 * matter either before or after the change. */
4634 struct cls_conjunction
*conjs
;
4636 get_conjunctions(fm
, &conjs
, &n_conjs
);
4639 set_conjunctions(rule
, conjs
, n_conjs
);
4641 ovsrcu_set(&rule
->actions
, rule_actions_create(fm
->ofpacts
,
4644 set_conjunctions(rule
, conjs
, n_conjs
);
4650 if (change_actions
|| reset_counters
) {
4651 ofproto
->ofproto_class
->rule_modify_actions(rule
, reset_counters
);
4654 if (event
!= NXFME_MODIFIED
|| change_actions
|| change_cookie
) {
4655 ofmonitor_report(ofproto
->connmgr
, rule
, event
, 0,
4656 req
? req
->ofconn
: NULL
, req
? req
->request
->xid
: 0,
4657 change_actions
? actions
: NULL
);
4660 if (change_actions
) {
4661 learned_cookies_inc(ofproto
, rule_get_actions(rule
));
4662 learned_cookies_dec(ofproto
, actions
, dead_cookies
);
4663 rule_actions_destroy(actions
);
4667 /* Modifies the rules listed in 'rules', changing their actions to match those
4670 * 'req' is used to retrieve the packet buffer specified in fm->buffer_id,
4673 modify_flows__(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
4674 const struct rule_collection
*rules
,
4675 const struct flow_mod_requester
*req
)
4676 OVS_REQUIRES(ofproto_mutex
)
4678 struct ovs_list dead_cookies
= OVS_LIST_INITIALIZER(&dead_cookies
);
4681 for (i
= 0; i
< rules
->n
; i
++) {
4682 modify_flow__(ofproto
, fm
, rules
->rules
[i
], req
, &dead_cookies
);
4684 learned_cookies_flush(ofproto
, &dead_cookies
);
4688 modify_flows_add__(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
4689 const struct flow_mod_requester
*req
)
4690 OVS_REQUIRES(ofproto_mutex
)
4692 if (fm
->cookie_mask
!= htonll(0) || fm
->new_cookie
== OVS_BE64_MAX
) {
4695 return add_flow(ofproto
, fm
, req
);
4699 modify_flows(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
4700 const struct rule_collection
*rules
,
4701 const struct flow_mod_requester
*req
)
4702 OVS_REQUIRES(ofproto_mutex
)
4707 error
= modify_flows_check__(ofproto
, fm
, rules
);
4709 modify_flows__(ofproto
, fm
, rules
, req
);
4710 send_buffered_packet(req
, fm
->buffer_id
, rules
->rules
[0]);
4713 error
= modify_flows_add__(ofproto
, fm
, req
);
4719 /* Implements OFPFC_MODIFY. Returns 0 on success or an OpenFlow error code on
4722 * 'ofconn' is used to retrieve the packet buffer specified in fm->buffer_id,
4725 modify_flows_loose(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
4726 const struct flow_mod_requester
*req
)
4727 OVS_REQUIRES(ofproto_mutex
)
4729 struct rule_criteria criteria
;
4730 struct rule_collection rules
;
4733 rule_criteria_init(&criteria
, fm
->table_id
, &fm
->match
, 0,
4734 fm
->cookie
, fm
->cookie_mask
, OFPP_ANY
, OFPG11_ANY
);
4735 rule_criteria_require_rw(&criteria
,
4736 (fm
->flags
& OFPUTIL_FF_NO_READONLY
) != 0);
4737 error
= collect_rules_loose(ofproto
, &criteria
, &rules
);
4738 rule_criteria_destroy(&criteria
);
4741 error
= modify_flows(ofproto
, fm
, &rules
, req
);
4743 rule_collection_destroy(&rules
);
4748 /* Implements OFPFC_MODIFY_STRICT. Returns 0 on success or an OpenFlow error
4749 * code on failure. */
4751 modify_flow_strict(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
4752 const struct flow_mod_requester
*req
)
4753 OVS_REQUIRES(ofproto_mutex
)
4755 struct rule_criteria criteria
;
4756 struct rule_collection rules
;
4759 rule_criteria_init(&criteria
, fm
->table_id
, &fm
->match
, fm
->priority
,
4760 fm
->cookie
, fm
->cookie_mask
, OFPP_ANY
, OFPG11_ANY
);
4761 rule_criteria_require_rw(&criteria
,
4762 (fm
->flags
& OFPUTIL_FF_NO_READONLY
) != 0);
4763 error
= collect_rules_strict(ofproto
, &criteria
, &rules
);
4764 rule_criteria_destroy(&criteria
);
4767 /* collect_rules_strict() can return max 1 rule. */
4768 error
= modify_flows(ofproto
, fm
, &rules
, req
);
4770 rule_collection_destroy(&rules
);
4775 /* OFPFC_DELETE implementation. */
4777 /* Deletes the rules listed in 'rules'. */
4779 delete_flows__(const struct rule_collection
*rules
,
4780 enum ofp_flow_removed_reason reason
,
4781 const struct flow_mod_requester
*req
)
4782 OVS_REQUIRES(ofproto_mutex
)
4785 struct ovs_list dead_cookies
= OVS_LIST_INITIALIZER(&dead_cookies
);
4786 struct ofproto
*ofproto
= rules
->rules
[0]->ofproto
;
4787 struct rule
*rule
, *next
;
4790 for (i
= 0, next
= rules
->rules
[0];
4791 rule
= next
, next
= (++i
< rules
->n
) ? rules
->rules
[i
] : NULL
,
4793 struct classifier
*cls
= &ofproto
->tables
[rule
->table_id
].cls
;
4794 uint8_t next_table
= next
? next
->table_id
: UINT8_MAX
;
4796 ofproto_rule_send_removed(rule
, reason
);
4798 ofmonitor_report(ofproto
->connmgr
, rule
, NXFME_DELETED
, reason
,
4799 req
? req
->ofconn
: NULL
,
4800 req
? req
->request
->xid
: 0, NULL
);
4802 if (next_table
== rule
->table_id
) {
4803 classifier_defer(cls
);
4805 classifier_remove(cls
, &rule
->cr
);
4806 if (next_table
!= rule
->table_id
) {
4807 classifier_publish(cls
);
4809 ofproto_rule_remove__(ofproto
, rule
);
4811 ofproto
->ofproto_class
->rule_delete(rule
);
4813 learned_cookies_dec(ofproto
, rule_get_actions(rule
),
4816 ofproto_rule_unref(rule
);
4818 learned_cookies_flush(ofproto
, &dead_cookies
);
4819 ofmonitor_flush(ofproto
->connmgr
);
4823 /* Implements OFPFC_DELETE. */
4825 delete_flows_loose(struct ofproto
*ofproto
,
4826 const struct ofputil_flow_mod
*fm
,
4827 const struct flow_mod_requester
*req
)
4828 OVS_REQUIRES(ofproto_mutex
)
4830 struct rule_criteria criteria
;
4831 struct rule_collection rules
;
4834 rule_criteria_init(&criteria
, fm
->table_id
, &fm
->match
, 0,
4835 fm
->cookie
, fm
->cookie_mask
,
4836 fm
->out_port
, fm
->out_group
);
4837 rule_criteria_require_rw(&criteria
,
4838 (fm
->flags
& OFPUTIL_FF_NO_READONLY
) != 0);
4839 error
= collect_rules_loose(ofproto
, &criteria
, &rules
);
4840 rule_criteria_destroy(&criteria
);
4843 delete_flows__(&rules
, fm
->delete_reason
, req
);
4845 rule_collection_destroy(&rules
);
4850 /* Implements OFPFC_DELETE_STRICT. */
4852 delete_flow_strict(struct ofproto
*ofproto
, const struct ofputil_flow_mod
*fm
,
4853 const struct flow_mod_requester
*req
)
4854 OVS_REQUIRES(ofproto_mutex
)
4856 struct rule_criteria criteria
;
4857 struct rule_collection rules
;
4860 rule_criteria_init(&criteria
, fm
->table_id
, &fm
->match
, fm
->priority
,
4861 fm
->cookie
, fm
->cookie_mask
,
4862 fm
->out_port
, fm
->out_group
);
4863 rule_criteria_require_rw(&criteria
,
4864 (fm
->flags
& OFPUTIL_FF_NO_READONLY
) != 0);
4865 error
= collect_rules_strict(ofproto
, &criteria
, &rules
);
4866 rule_criteria_destroy(&criteria
);
4869 delete_flows__(&rules
, fm
->delete_reason
, req
);
4871 rule_collection_destroy(&rules
);
4877 ofproto_rule_send_removed(struct rule
*rule
, uint8_t reason
)
4878 OVS_REQUIRES(ofproto_mutex
)
4880 struct ofputil_flow_removed fr
;
4883 if (rule_is_hidden(rule
) ||
4884 !(rule
->flags
& OFPUTIL_FF_SEND_FLOW_REM
)) {
4888 minimatch_expand(&rule
->cr
.match
, &fr
.match
);
4889 fr
.priority
= rule
->cr
.priority
;
4890 fr
.cookie
= rule
->flow_cookie
;
4892 fr
.table_id
= rule
->table_id
;
4893 calc_duration(rule
->created
, time_msec(),
4894 &fr
.duration_sec
, &fr
.duration_nsec
);
4895 ovs_mutex_lock(&rule
->mutex
);
4896 fr
.idle_timeout
= rule
->idle_timeout
;
4897 fr
.hard_timeout
= rule
->hard_timeout
;
4898 ovs_mutex_unlock(&rule
->mutex
);
4899 rule
->ofproto
->ofproto_class
->rule_get_stats(rule
, &fr
.packet_count
,
4900 &fr
.byte_count
, &used
);
4902 connmgr_send_flow_removed(rule
->ofproto
->connmgr
, &fr
);
4905 /* Sends an OpenFlow "flow removed" message with the given 'reason' (either
4906 * OFPRR_HARD_TIMEOUT or OFPRR_IDLE_TIMEOUT), and then removes 'rule' from its
4909 * ofproto implementation ->run() functions should use this function to expire
4910 * OpenFlow flows. */
4912 ofproto_rule_expire(struct rule
*rule
, uint8_t reason
)
4913 OVS_REQUIRES(ofproto_mutex
)
4915 struct rule_collection rules
;
4917 rules
.rules
= rules
.stub
;
4919 rules
.stub
[0] = rule
;
4920 delete_flows__(&rules
, reason
, NULL
);
4923 /* Reduces '*timeout' to no more than 'max'. A value of zero in either case
4924 * means "infinite". */
4926 reduce_timeout(uint16_t max
, uint16_t *timeout
)
4928 if (max
&& (!*timeout
|| *timeout
> max
)) {
4933 /* If 'idle_timeout' is nonzero, and 'rule' has no idle timeout or an idle
4934 * timeout greater than 'idle_timeout', lowers 'rule''s idle timeout to
4935 * 'idle_timeout' seconds. Similarly for 'hard_timeout'.
4937 * Suitable for implementing OFPACT_FIN_TIMEOUT. */
4939 ofproto_rule_reduce_timeouts(struct rule
*rule
,
4940 uint16_t idle_timeout
, uint16_t hard_timeout
)
4941 OVS_EXCLUDED(ofproto_mutex
, rule
->mutex
)
4943 if (!idle_timeout
&& !hard_timeout
) {
4947 ovs_mutex_lock(&ofproto_mutex
);
4948 if (list_is_empty(&rule
->expirable
)) {
4949 list_insert(&rule
->ofproto
->expirable
, &rule
->expirable
);
4951 ovs_mutex_unlock(&ofproto_mutex
);
4953 ovs_mutex_lock(&rule
->mutex
);
4954 reduce_timeout(idle_timeout
, &rule
->idle_timeout
);
4955 reduce_timeout(hard_timeout
, &rule
->hard_timeout
);
4956 ovs_mutex_unlock(&rule
->mutex
);
4960 handle_flow_mod(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
4961 OVS_EXCLUDED(ofproto_mutex
)
4963 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
4964 struct ofputil_flow_mod fm
;
4965 uint64_t ofpacts_stub
[1024 / 8];
4966 struct ofpbuf ofpacts
;
4969 error
= reject_slave_controller(ofconn
);
4974 ofpbuf_use_stub(&ofpacts
, ofpacts_stub
, sizeof ofpacts_stub
);
4975 error
= ofputil_decode_flow_mod(&fm
, oh
, ofconn_get_protocol(ofconn
),
4977 u16_to_ofp(ofproto
->max_ports
),
4980 error
= ofproto_check_ofpacts(ofproto
, fm
.ofpacts
, fm
.ofpacts_len
);
4983 struct flow_mod_requester req
;
4985 req
.ofconn
= ofconn
;
4987 error
= handle_flow_mod__(ofproto
, &fm
, &req
);
4990 goto exit_free_ofpacts
;
4993 ofconn_report_flow_mod(ofconn
, fm
.command
);
4996 ofpbuf_uninit(&ofpacts
);
5002 handle_flow_mod__(struct ofproto
*ofproto
, struct ofputil_flow_mod
*fm
,
5003 const struct flow_mod_requester
*req
)
5004 OVS_EXCLUDED(ofproto_mutex
)
5008 ovs_mutex_lock(&ofproto_mutex
);
5009 switch (fm
->command
) {
5011 error
= add_flow(ofproto
, fm
, req
);
5015 error
= modify_flows_loose(ofproto
, fm
, req
);
5018 case OFPFC_MODIFY_STRICT
:
5019 error
= modify_flow_strict(ofproto
, fm
, req
);
5023 error
= delete_flows_loose(ofproto
, fm
, req
);
5026 case OFPFC_DELETE_STRICT
:
5027 error
= delete_flow_strict(ofproto
, fm
, req
);
5031 if (fm
->command
> 0xff) {
5032 VLOG_WARN_RL(&rl
, "%s: flow_mod has explicit table_id but "
5033 "flow_mod_table_id extension is not enabled",
5036 error
= OFPERR_OFPFMFC_BAD_COMMAND
;
5039 ofmonitor_flush(ofproto
->connmgr
);
5040 ovs_mutex_unlock(&ofproto_mutex
);
5042 run_rule_executes(ofproto
);
5047 handle_role_request(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
5049 struct ofputil_role_request request
;
5050 struct ofputil_role_request reply
;
5054 error
= ofputil_decode_role_message(oh
, &request
);
5059 if (request
.role
!= OFPCR12_ROLE_NOCHANGE
) {
5060 if (request
.have_generation_id
5061 && !ofconn_set_master_election_id(ofconn
, request
.generation_id
)) {
5062 return OFPERR_OFPRRFC_STALE
;
5065 ofconn_set_role(ofconn
, request
.role
);
5068 reply
.role
= ofconn_get_role(ofconn
);
5069 reply
.have_generation_id
= ofconn_get_master_election_id(
5070 ofconn
, &reply
.generation_id
);
5071 buf
= ofputil_encode_role_reply(oh
, &reply
);
5072 ofconn_send_reply(ofconn
, buf
);
5078 handle_nxt_flow_mod_table_id(struct ofconn
*ofconn
,
5079 const struct ofp_header
*oh
)
5081 const struct nx_flow_mod_table_id
*msg
= ofpmsg_body(oh
);
5082 enum ofputil_protocol cur
, next
;
5084 cur
= ofconn_get_protocol(ofconn
);
5085 next
= ofputil_protocol_set_tid(cur
, msg
->set
!= 0);
5086 ofconn_set_protocol(ofconn
, next
);
5092 handle_nxt_set_flow_format(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
5094 const struct nx_set_flow_format
*msg
= ofpmsg_body(oh
);
5095 enum ofputil_protocol cur
, next
;
5096 enum ofputil_protocol next_base
;
5098 next_base
= ofputil_nx_flow_format_to_protocol(ntohl(msg
->format
));
5100 return OFPERR_OFPBRC_EPERM
;
5103 cur
= ofconn_get_protocol(ofconn
);
5104 next
= ofputil_protocol_set_base(cur
, next_base
);
5105 ofconn_set_protocol(ofconn
, next
);
5111 handle_nxt_set_packet_in_format(struct ofconn
*ofconn
,
5112 const struct ofp_header
*oh
)
5114 const struct nx_set_packet_in_format
*msg
= ofpmsg_body(oh
);
5117 format
= ntohl(msg
->format
);
5118 if (format
!= NXPIF_OPENFLOW10
&& format
!= NXPIF_NXM
) {
5119 return OFPERR_OFPBRC_EPERM
;
5122 ofconn_set_packet_in_format(ofconn
, format
);
5127 handle_nxt_set_async_config(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
5129 const struct nx_async_config
*msg
= ofpmsg_body(oh
);
5130 uint32_t master
[OAM_N_TYPES
];
5131 uint32_t slave
[OAM_N_TYPES
];
5133 master
[OAM_PACKET_IN
] = ntohl(msg
->packet_in_mask
[0]);
5134 master
[OAM_PORT_STATUS
] = ntohl(msg
->port_status_mask
[0]);
5135 master
[OAM_FLOW_REMOVED
] = ntohl(msg
->flow_removed_mask
[0]);
5137 slave
[OAM_PACKET_IN
] = ntohl(msg
->packet_in_mask
[1]);
5138 slave
[OAM_PORT_STATUS
] = ntohl(msg
->port_status_mask
[1]);
5139 slave
[OAM_FLOW_REMOVED
] = ntohl(msg
->flow_removed_mask
[1]);
5141 ofconn_set_async_config(ofconn
, master
, slave
);
5142 if (ofconn_get_type(ofconn
) == OFCONN_SERVICE
&&
5143 !ofconn_get_miss_send_len(ofconn
)) {
5144 ofconn_set_miss_send_len(ofconn
, OFP_DEFAULT_MISS_SEND_LEN
);
5151 handle_nxt_get_async_request(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
5154 uint32_t master
[OAM_N_TYPES
];
5155 uint32_t slave
[OAM_N_TYPES
];
5156 struct nx_async_config
*msg
;
5158 ofconn_get_async_config(ofconn
, master
, slave
);
5159 buf
= ofpraw_alloc_reply(OFPRAW_OFPT13_GET_ASYNC_REPLY
, oh
, 0);
5160 msg
= ofpbuf_put_zeros(buf
, sizeof *msg
);
5162 msg
->packet_in_mask
[0] = htonl(master
[OAM_PACKET_IN
]);
5163 msg
->port_status_mask
[0] = htonl(master
[OAM_PORT_STATUS
]);
5164 msg
->flow_removed_mask
[0] = htonl(master
[OAM_FLOW_REMOVED
]);
5166 msg
->packet_in_mask
[1] = htonl(slave
[OAM_PACKET_IN
]);
5167 msg
->port_status_mask
[1] = htonl(slave
[OAM_PORT_STATUS
]);
5168 msg
->flow_removed_mask
[1] = htonl(slave
[OAM_FLOW_REMOVED
]);
5170 ofconn_send_reply(ofconn
, buf
);
5176 handle_nxt_set_controller_id(struct ofconn
*ofconn
,
5177 const struct ofp_header
*oh
)
5179 const struct nx_controller_id
*nci
= ofpmsg_body(oh
);
5181 if (!is_all_zeros(nci
->zero
, sizeof nci
->zero
)) {
5182 return OFPERR_NXBRC_MUST_BE_ZERO
;
5185 ofconn_set_controller_id(ofconn
, ntohs(nci
->controller_id
));
5190 handle_barrier_request(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
5194 buf
= ofpraw_alloc_reply((oh
->version
== OFP10_VERSION
5195 ? OFPRAW_OFPT10_BARRIER_REPLY
5196 : OFPRAW_OFPT11_BARRIER_REPLY
), oh
, 0);
5197 ofconn_send_reply(ofconn
, buf
);
5202 ofproto_compose_flow_refresh_update(const struct rule
*rule
,
5203 enum nx_flow_monitor_flags flags
,
5204 struct ovs_list
*msgs
)
5205 OVS_REQUIRES(ofproto_mutex
)
5207 const struct rule_actions
*actions
;
5208 struct ofputil_flow_update fu
;
5211 fu
.event
= (flags
& (NXFMF_INITIAL
| NXFMF_ADD
)
5212 ? NXFME_ADDED
: NXFME_MODIFIED
);
5214 ovs_mutex_lock(&rule
->mutex
);
5215 fu
.idle_timeout
= rule
->idle_timeout
;
5216 fu
.hard_timeout
= rule
->hard_timeout
;
5217 ovs_mutex_unlock(&rule
->mutex
);
5218 fu
.table_id
= rule
->table_id
;
5219 fu
.cookie
= rule
->flow_cookie
;
5220 minimatch_expand(&rule
->cr
.match
, &match
);
5222 fu
.priority
= rule
->cr
.priority
;
5224 actions
= flags
& NXFMF_ACTIONS
? rule_get_actions(rule
) : NULL
;
5225 fu
.ofpacts
= actions
? actions
->ofpacts
: NULL
;
5226 fu
.ofpacts_len
= actions
? actions
->ofpacts_len
: 0;
5228 if (list_is_empty(msgs
)) {
5229 ofputil_start_flow_update(msgs
);
5231 ofputil_append_flow_update(&fu
, msgs
);
5235 ofmonitor_compose_refresh_updates(struct rule_collection
*rules
,
5236 struct ovs_list
*msgs
)
5237 OVS_REQUIRES(ofproto_mutex
)
5241 for (i
= 0; i
< rules
->n
; i
++) {
5242 struct rule
*rule
= rules
->rules
[i
];
5243 enum nx_flow_monitor_flags flags
= rule
->monitor_flags
;
5244 rule
->monitor_flags
= 0;
5246 ofproto_compose_flow_refresh_update(rule
, flags
, msgs
);
5251 ofproto_collect_ofmonitor_refresh_rule(const struct ofmonitor
*m
,
5252 struct rule
*rule
, uint64_t seqno
,
5253 struct rule_collection
*rules
)
5254 OVS_REQUIRES(ofproto_mutex
)
5256 enum nx_flow_monitor_flags update
;
5258 if (rule_is_hidden(rule
)) {
5262 if (!ofproto_rule_has_out_port(rule
, m
->out_port
)) {
5267 if (rule
->add_seqno
> seqno
) {
5268 update
= NXFMF_ADD
| NXFMF_MODIFY
;
5269 } else if (rule
->modify_seqno
> seqno
) {
5270 update
= NXFMF_MODIFY
;
5275 if (!(m
->flags
& update
)) {
5279 update
= NXFMF_INITIAL
;
5282 if (!rule
->monitor_flags
) {
5283 rule_collection_add(rules
, rule
);
5285 rule
->monitor_flags
|= update
| (m
->flags
& NXFMF_ACTIONS
);
5289 ofproto_collect_ofmonitor_refresh_rules(const struct ofmonitor
*m
,
5291 struct rule_collection
*rules
)
5292 OVS_REQUIRES(ofproto_mutex
)
5294 const struct ofproto
*ofproto
= ofconn_get_ofproto(m
->ofconn
);
5295 const struct oftable
*table
;
5296 struct cls_rule target
;
5298 cls_rule_init_from_minimatch(&target
, &m
->match
, 0);
5299 FOR_EACH_MATCHING_TABLE (table
, m
->table_id
, ofproto
) {
5302 CLS_FOR_EACH_TARGET (rule
, cr
, &table
->cls
, &target
) {
5303 ofproto_collect_ofmonitor_refresh_rule(m
, rule
, seqno
, rules
);
5306 cls_rule_destroy(&target
);
5310 ofproto_collect_ofmonitor_initial_rules(struct ofmonitor
*m
,
5311 struct rule_collection
*rules
)
5312 OVS_REQUIRES(ofproto_mutex
)
5314 if (m
->flags
& NXFMF_INITIAL
) {
5315 ofproto_collect_ofmonitor_refresh_rules(m
, 0, rules
);
5320 ofmonitor_collect_resume_rules(struct ofmonitor
*m
,
5321 uint64_t seqno
, struct rule_collection
*rules
)
5322 OVS_REQUIRES(ofproto_mutex
)
5324 ofproto_collect_ofmonitor_refresh_rules(m
, seqno
, rules
);
5328 flow_monitor_delete(struct ofconn
*ofconn
, uint32_t id
)
5329 OVS_REQUIRES(ofproto_mutex
)
5331 struct ofmonitor
*m
;
5334 m
= ofmonitor_lookup(ofconn
, id
);
5336 ofmonitor_destroy(m
);
5339 error
= OFPERR_OFPMOFC_UNKNOWN_MONITOR
;
5346 handle_flow_monitor_request(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
5347 OVS_EXCLUDED(ofproto_mutex
)
5349 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
5350 struct ofmonitor
**monitors
;
5351 size_t n_monitors
, allocated_monitors
;
5352 struct rule_collection rules
;
5353 struct ovs_list replies
;
5358 ofpbuf_use_const(&b
, oh
, ntohs(oh
->length
));
5360 n_monitors
= allocated_monitors
= 0;
5362 ovs_mutex_lock(&ofproto_mutex
);
5364 struct ofputil_flow_monitor_request request
;
5365 struct ofmonitor
*m
;
5368 retval
= ofputil_decode_flow_monitor_request(&request
, &b
);
5369 if (retval
== EOF
) {
5371 } else if (retval
) {
5376 if (request
.table_id
!= 0xff
5377 && request
.table_id
>= ofproto
->n_tables
) {
5378 error
= OFPERR_OFPBRC_BAD_TABLE_ID
;
5382 error
= ofmonitor_create(&request
, ofconn
, &m
);
5387 if (n_monitors
>= allocated_monitors
) {
5388 monitors
= x2nrealloc(monitors
, &allocated_monitors
,
5391 monitors
[n_monitors
++] = m
;
5394 rule_collection_init(&rules
);
5395 for (i
= 0; i
< n_monitors
; i
++) {
5396 ofproto_collect_ofmonitor_initial_rules(monitors
[i
], &rules
);
5399 ofpmp_init(&replies
, oh
);
5400 ofmonitor_compose_refresh_updates(&rules
, &replies
);
5401 ovs_mutex_unlock(&ofproto_mutex
);
5403 rule_collection_destroy(&rules
);
5405 ofconn_send_replies(ofconn
, &replies
);
5411 for (i
= 0; i
< n_monitors
; i
++) {
5412 ofmonitor_destroy(monitors
[i
]);
5415 ovs_mutex_unlock(&ofproto_mutex
);
5421 handle_flow_monitor_cancel(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
5422 OVS_EXCLUDED(ofproto_mutex
)
5427 id
= ofputil_decode_flow_monitor_cancel(oh
);
5429 ovs_mutex_lock(&ofproto_mutex
);
5430 error
= flow_monitor_delete(ofconn
, id
);
5431 ovs_mutex_unlock(&ofproto_mutex
);
5436 /* Meters implementation.
5438 * Meter table entry, indexed by the OpenFlow meter_id.
5439 * 'created' is used to compute the duration for meter stats.
5440 * 'list rules' is needed so that we can delete the dependent rules when the
5441 * meter table entry is deleted.
5442 * 'provider_meter_id' is for the provider's private use.
5445 long long int created
; /* Time created. */
5446 struct ovs_list rules
; /* List of "struct rule_dpif"s. */
5447 ofproto_meter_id provider_meter_id
;
5448 uint16_t flags
; /* Meter flags. */
5449 uint16_t n_bands
; /* Number of meter bands. */
5450 struct ofputil_meter_band
*bands
;
5454 * This is used in instruction validation at flow set-up time,
5455 * as flows may not use non-existing meters.
5456 * Return value of UINT32_MAX signifies an invalid meter.
5459 get_provider_meter_id(const struct ofproto
*ofproto
, uint32_t of_meter_id
)
5461 if (of_meter_id
&& of_meter_id
<= ofproto
->meter_features
.max_meters
) {
5462 const struct meter
*meter
= ofproto
->meters
[of_meter_id
];
5464 return meter
->provider_meter_id
.uint32
;
5470 /* Finds the meter invoked by 'rule''s actions and adds 'rule' to the meter's
5473 meter_insert_rule(struct rule
*rule
)
5475 const struct rule_actions
*a
= rule_get_actions(rule
);
5476 uint32_t meter_id
= ofpacts_get_meter(a
->ofpacts
, a
->ofpacts_len
);
5477 struct meter
*meter
= rule
->ofproto
->meters
[meter_id
];
5479 list_insert(&meter
->rules
, &rule
->meter_list_node
);
5483 meter_update(struct meter
*meter
, const struct ofputil_meter_config
*config
)
5487 meter
->flags
= config
->flags
;
5488 meter
->n_bands
= config
->n_bands
;
5489 meter
->bands
= xmemdup(config
->bands
,
5490 config
->n_bands
* sizeof *meter
->bands
);
5493 static struct meter
*
5494 meter_create(const struct ofputil_meter_config
*config
,
5495 ofproto_meter_id provider_meter_id
)
5497 struct meter
*meter
;
5499 meter
= xzalloc(sizeof *meter
);
5500 meter
->provider_meter_id
= provider_meter_id
;
5501 meter
->created
= time_msec();
5502 list_init(&meter
->rules
);
5504 meter_update(meter
, config
);
5510 meter_delete(struct ofproto
*ofproto
, uint32_t first
, uint32_t last
)
5511 OVS_REQUIRES(ofproto_mutex
)
5514 for (mid
= first
; mid
<= last
; ++mid
) {
5515 struct meter
*meter
= ofproto
->meters
[mid
];
5517 ofproto
->meters
[mid
] = NULL
;
5518 ofproto
->ofproto_class
->meter_del(ofproto
,
5519 meter
->provider_meter_id
);
5527 handle_add_meter(struct ofproto
*ofproto
, struct ofputil_meter_mod
*mm
)
5529 ofproto_meter_id provider_meter_id
= { UINT32_MAX
};
5530 struct meter
**meterp
= &ofproto
->meters
[mm
->meter
.meter_id
];
5534 return OFPERR_OFPMMFC_METER_EXISTS
;
5537 error
= ofproto
->ofproto_class
->meter_set(ofproto
, &provider_meter_id
,
5540 ovs_assert(provider_meter_id
.uint32
!= UINT32_MAX
);
5541 *meterp
= meter_create(&mm
->meter
, provider_meter_id
);
5547 handle_modify_meter(struct ofproto
*ofproto
, struct ofputil_meter_mod
*mm
)
5549 struct meter
*meter
= ofproto
->meters
[mm
->meter
.meter_id
];
5551 uint32_t provider_meter_id
;
5554 return OFPERR_OFPMMFC_UNKNOWN_METER
;
5557 provider_meter_id
= meter
->provider_meter_id
.uint32
;
5558 error
= ofproto
->ofproto_class
->meter_set(ofproto
,
5559 &meter
->provider_meter_id
,
5561 ovs_assert(meter
->provider_meter_id
.uint32
== provider_meter_id
);
5563 meter_update(meter
, &mm
->meter
);
5569 handle_delete_meter(struct ofconn
*ofconn
, struct ofputil_meter_mod
*mm
)
5570 OVS_EXCLUDED(ofproto_mutex
)
5572 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
5573 uint32_t meter_id
= mm
->meter
.meter_id
;
5574 struct rule_collection rules
;
5575 enum ofperr error
= 0;
5576 uint32_t first
, last
;
5578 if (meter_id
== OFPM13_ALL
) {
5580 last
= ofproto
->meter_features
.max_meters
;
5582 if (!meter_id
|| meter_id
> ofproto
->meter_features
.max_meters
) {
5585 first
= last
= meter_id
;
5588 /* First delete the rules that use this meter. If any of those rules are
5589 * currently being modified, postpone the whole operation until later. */
5590 rule_collection_init(&rules
);
5591 ovs_mutex_lock(&ofproto_mutex
);
5592 for (meter_id
= first
; meter_id
<= last
; ++meter_id
) {
5593 struct meter
*meter
= ofproto
->meters
[meter_id
];
5594 if (meter
&& !list_is_empty(&meter
->rules
)) {
5597 LIST_FOR_EACH (rule
, meter_list_node
, &meter
->rules
) {
5598 rule_collection_add(&rules
, rule
);
5602 delete_flows__(&rules
, OFPRR_METER_DELETE
, NULL
);
5604 /* Delete the meters. */
5605 meter_delete(ofproto
, first
, last
);
5607 ovs_mutex_unlock(&ofproto_mutex
);
5608 rule_collection_destroy(&rules
);
5614 handle_meter_mod(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
5616 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
5617 struct ofputil_meter_mod mm
;
5618 uint64_t bands_stub
[256 / 8];
5619 struct ofpbuf bands
;
5623 error
= reject_slave_controller(ofconn
);
5628 ofpbuf_use_stub(&bands
, bands_stub
, sizeof bands_stub
);
5630 error
= ofputil_decode_meter_mod(oh
, &mm
, &bands
);
5632 goto exit_free_bands
;
5635 meter_id
= mm
.meter
.meter_id
;
5637 if (mm
.command
!= OFPMC13_DELETE
) {
5638 /* Fails also when meters are not implemented by the provider. */
5639 if (meter_id
== 0 || meter_id
> OFPM13_MAX
) {
5640 error
= OFPERR_OFPMMFC_INVALID_METER
;
5641 goto exit_free_bands
;
5642 } else if (meter_id
> ofproto
->meter_features
.max_meters
) {
5643 error
= OFPERR_OFPMMFC_OUT_OF_METERS
;
5644 goto exit_free_bands
;
5646 if (mm
.meter
.n_bands
> ofproto
->meter_features
.max_bands
) {
5647 error
= OFPERR_OFPMMFC_OUT_OF_BANDS
;
5648 goto exit_free_bands
;
5652 switch (mm
.command
) {
5654 error
= handle_add_meter(ofproto
, &mm
);
5657 case OFPMC13_MODIFY
:
5658 error
= handle_modify_meter(ofproto
, &mm
);
5661 case OFPMC13_DELETE
:
5662 error
= handle_delete_meter(ofconn
, &mm
);
5666 error
= OFPERR_OFPMMFC_BAD_COMMAND
;
5671 ofpbuf_uninit(&bands
);
5676 handle_meter_features_request(struct ofconn
*ofconn
,
5677 const struct ofp_header
*request
)
5679 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
5680 struct ofputil_meter_features features
;
5683 if (ofproto
->ofproto_class
->meter_get_features
) {
5684 ofproto
->ofproto_class
->meter_get_features(ofproto
, &features
);
5686 memset(&features
, 0, sizeof features
);
5688 b
= ofputil_encode_meter_features_reply(&features
, request
);
5690 ofconn_send_reply(ofconn
, b
);
5695 handle_meter_request(struct ofconn
*ofconn
, const struct ofp_header
*request
,
5698 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
5699 struct ovs_list replies
;
5700 uint64_t bands_stub
[256 / 8];
5701 struct ofpbuf bands
;
5702 uint32_t meter_id
, first
, last
;
5704 ofputil_decode_meter_request(request
, &meter_id
);
5706 if (meter_id
== OFPM13_ALL
) {
5708 last
= ofproto
->meter_features
.max_meters
;
5710 if (!meter_id
|| meter_id
> ofproto
->meter_features
.max_meters
||
5711 !ofproto
->meters
[meter_id
]) {
5712 return OFPERR_OFPMMFC_UNKNOWN_METER
;
5714 first
= last
= meter_id
;
5717 ofpbuf_use_stub(&bands
, bands_stub
, sizeof bands_stub
);
5718 ofpmp_init(&replies
, request
);
5720 for (meter_id
= first
; meter_id
<= last
; ++meter_id
) {
5721 struct meter
*meter
= ofproto
->meters
[meter_id
];
5723 continue; /* Skip non-existing meters. */
5725 if (type
== OFPTYPE_METER_STATS_REQUEST
) {
5726 struct ofputil_meter_stats stats
;
5728 stats
.meter_id
= meter_id
;
5730 /* Provider sets the packet and byte counts, we do the rest. */
5731 stats
.flow_count
= list_size(&meter
->rules
);
5732 calc_duration(meter
->created
, time_msec(),
5733 &stats
.duration_sec
, &stats
.duration_nsec
);
5734 stats
.n_bands
= meter
->n_bands
;
5735 ofpbuf_clear(&bands
);
5737 = ofpbuf_put_uninit(&bands
,
5738 meter
->n_bands
* sizeof *stats
.bands
);
5740 if (!ofproto
->ofproto_class
->meter_get(ofproto
,
5741 meter
->provider_meter_id
,
5743 ofputil_append_meter_stats(&replies
, &stats
);
5745 } else { /* type == OFPTYPE_METER_CONFIG_REQUEST */
5746 struct ofputil_meter_config config
;
5748 config
.meter_id
= meter_id
;
5749 config
.flags
= meter
->flags
;
5750 config
.n_bands
= meter
->n_bands
;
5751 config
.bands
= meter
->bands
;
5752 ofputil_append_meter_config(&replies
, &config
);
5756 ofconn_send_replies(ofconn
, &replies
);
5757 ofpbuf_uninit(&bands
);
5762 ofproto_group_lookup__(const struct ofproto
*ofproto
, uint32_t group_id
,
5763 struct ofgroup
**group
)
5764 OVS_REQ_RDLOCK(ofproto
->groups_rwlock
)
5766 HMAP_FOR_EACH_IN_BUCKET (*group
, hmap_node
,
5767 hash_int(group_id
, 0), &ofproto
->groups
) {
5768 if ((*group
)->group_id
== group_id
) {
5776 /* If the group exists, this function increments the groups's reference count.
5778 * Make sure to call ofproto_group_unref() after no longer needing to maintain
5779 * a reference to the group. */
5781 ofproto_group_lookup(const struct ofproto
*ofproto
, uint32_t group_id
,
5782 struct ofgroup
**group
)
5786 ovs_rwlock_rdlock(&ofproto
->groups_rwlock
);
5787 found
= ofproto_group_lookup__(ofproto
, group_id
, group
);
5789 ofproto_group_ref(*group
);
5791 ovs_rwlock_unlock(&ofproto
->groups_rwlock
);
5796 ofproto_group_exists__(const struct ofproto
*ofproto
, uint32_t group_id
)
5797 OVS_REQ_RDLOCK(ofproto
->groups_rwlock
)
5799 struct ofgroup
*grp
;
5801 HMAP_FOR_EACH_IN_BUCKET (grp
, hmap_node
,
5802 hash_int(group_id
, 0), &ofproto
->groups
) {
5803 if (grp
->group_id
== group_id
) {
5811 ofproto_group_exists(const struct ofproto
*ofproto
, uint32_t group_id
)
5812 OVS_EXCLUDED(ofproto
->groups_rwlock
)
5816 ovs_rwlock_rdlock(&ofproto
->groups_rwlock
);
5817 exists
= ofproto_group_exists__(ofproto
, group_id
);
5818 ovs_rwlock_unlock(&ofproto
->groups_rwlock
);
5824 group_get_ref_count(struct ofgroup
*group
)
5825 OVS_EXCLUDED(ofproto_mutex
)
5827 struct ofproto
*ofproto
= CONST_CAST(struct ofproto
*, group
->ofproto
);
5828 struct rule_criteria criteria
;
5829 struct rule_collection rules
;
5834 match_init_catchall(&match
);
5835 rule_criteria_init(&criteria
, 0xff, &match
, 0, htonll(0), htonll(0),
5836 OFPP_ANY
, group
->group_id
);
5837 ovs_mutex_lock(&ofproto_mutex
);
5838 error
= collect_rules_loose(ofproto
, &criteria
, &rules
);
5839 ovs_mutex_unlock(&ofproto_mutex
);
5840 rule_criteria_destroy(&criteria
);
5842 count
= !error
&& rules
.n
< UINT32_MAX
? rules
.n
: UINT32_MAX
;
5844 rule_collection_destroy(&rules
);
5849 append_group_stats(struct ofgroup
*group
, struct ovs_list
*replies
)
5851 struct ofputil_group_stats ogs
;
5852 const struct ofproto
*ofproto
= group
->ofproto
;
5853 long long int now
= time_msec();
5856 ogs
.bucket_stats
= xmalloc(group
->n_buckets
* sizeof *ogs
.bucket_stats
);
5858 /* Provider sets the packet and byte counts, we do the rest. */
5859 ogs
.ref_count
= group_get_ref_count(group
);
5860 ogs
.n_buckets
= group
->n_buckets
;
5862 error
= (ofproto
->ofproto_class
->group_get_stats
5863 ? ofproto
->ofproto_class
->group_get_stats(group
, &ogs
)
5866 ogs
.packet_count
= UINT64_MAX
;
5867 ogs
.byte_count
= UINT64_MAX
;
5868 memset(ogs
.bucket_stats
, 0xff,
5869 ogs
.n_buckets
* sizeof *ogs
.bucket_stats
);
5872 ogs
.group_id
= group
->group_id
;
5873 calc_duration(group
->created
, now
, &ogs
.duration_sec
, &ogs
.duration_nsec
);
5875 ofputil_append_group_stats(replies
, &ogs
);
5877 free(ogs
.bucket_stats
);
5881 handle_group_request(struct ofconn
*ofconn
,
5882 const struct ofp_header
*request
, uint32_t group_id
,
5883 void (*cb
)(struct ofgroup
*, struct ovs_list
*replies
))
5885 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
5886 struct ofgroup
*group
;
5887 struct ovs_list replies
;
5889 ofpmp_init(&replies
, request
);
5890 if (group_id
== OFPG_ALL
) {
5891 ovs_rwlock_rdlock(&ofproto
->groups_rwlock
);
5892 HMAP_FOR_EACH (group
, hmap_node
, &ofproto
->groups
) {
5893 cb(group
, &replies
);
5895 ovs_rwlock_unlock(&ofproto
->groups_rwlock
);
5897 if (ofproto_group_lookup(ofproto
, group_id
, &group
)) {
5898 cb(group
, &replies
);
5899 ofproto_group_unref(group
);
5902 ofconn_send_replies(ofconn
, &replies
);
5906 handle_group_stats_request(struct ofconn
*ofconn
,
5907 const struct ofp_header
*request
)
5912 error
= ofputil_decode_group_stats_request(request
, &group_id
);
5917 handle_group_request(ofconn
, request
, group_id
, append_group_stats
);
5922 append_group_desc(struct ofgroup
*group
, struct ovs_list
*replies
)
5924 struct ofputil_group_desc gds
;
5926 gds
.group_id
= group
->group_id
;
5927 gds
.type
= group
->type
;
5928 gds
.props
= group
->props
;
5930 ofputil_append_group_desc_reply(&gds
, &group
->buckets
, replies
);
5934 handle_group_desc_stats_request(struct ofconn
*ofconn
,
5935 const struct ofp_header
*request
)
5937 handle_group_request(ofconn
, request
,
5938 ofputil_decode_group_desc_request(request
),
5944 handle_group_features_stats_request(struct ofconn
*ofconn
,
5945 const struct ofp_header
*request
)
5947 struct ofproto
*p
= ofconn_get_ofproto(ofconn
);
5950 msg
= ofputil_encode_group_features_reply(&p
->ogf
, request
);
5952 ofconn_send_reply(ofconn
, msg
);
5959 handle_queue_get_config_request(struct ofconn
*ofconn
,
5960 const struct ofp_header
*oh
)
5962 struct ofproto
*p
= ofconn_get_ofproto(ofconn
);
5963 struct netdev_queue_dump queue_dump
;
5964 struct ofport
*ofport
;
5965 unsigned int queue_id
;
5966 struct ofpbuf
*reply
;
5967 struct smap details
;
5971 error
= ofputil_decode_queue_get_config_request(oh
, &request
);
5976 ofport
= ofproto_get_port(p
, request
);
5978 return OFPERR_OFPQOFC_BAD_PORT
;
5981 reply
= ofputil_encode_queue_get_config_reply(oh
);
5983 smap_init(&details
);
5984 NETDEV_QUEUE_FOR_EACH (&queue_id
, &details
, &queue_dump
, ofport
->netdev
) {
5985 struct ofputil_queue_config queue
;
5987 /* None of the existing queues have compatible properties, so we
5988 * hard-code omitting min_rate and max_rate. */
5989 queue
.queue_id
= queue_id
;
5990 queue
.min_rate
= UINT16_MAX
;
5991 queue
.max_rate
= UINT16_MAX
;
5992 ofputil_append_queue_get_config_reply(reply
, &queue
);
5994 smap_destroy(&details
);
5996 ofconn_send_reply(ofconn
, reply
);
6002 init_group(struct ofproto
*ofproto
, struct ofputil_group_mod
*gm
,
6003 struct ofgroup
**ofgroup
)
6006 const long long int now
= time_msec();
6008 if (gm
->group_id
> OFPG_MAX
) {
6009 return OFPERR_OFPGMFC_INVALID_GROUP
;
6011 if (gm
->type
> OFPGT11_FF
) {
6012 return OFPERR_OFPGMFC_BAD_TYPE
;
6015 *ofgroup
= ofproto
->ofproto_class
->group_alloc();
6017 VLOG_WARN_RL(&rl
, "%s: failed to allocate group", ofproto
->name
);
6018 return OFPERR_OFPGMFC_OUT_OF_GROUPS
;
6021 (*ofgroup
)->ofproto
= ofproto
;
6022 *CONST_CAST(uint32_t *, &((*ofgroup
)->group_id
)) = gm
->group_id
;
6023 *CONST_CAST(enum ofp11_group_type
*, &(*ofgroup
)->type
) = gm
->type
;
6024 *CONST_CAST(long long int *, &((*ofgroup
)->created
)) = now
;
6025 *CONST_CAST(long long int *, &((*ofgroup
)->modified
)) = now
;
6026 ovs_refcount_init(&(*ofgroup
)->ref_count
);
6028 list_move(&(*ofgroup
)->buckets
, &gm
->buckets
);
6029 *CONST_CAST(uint32_t *, &(*ofgroup
)->n_buckets
) =
6030 list_size(&(*ofgroup
)->buckets
);
6032 memcpy(CONST_CAST(struct ofputil_group_props
*, &(*ofgroup
)->props
),
6033 &gm
->props
, sizeof (struct ofputil_group_props
));
6035 /* Construct called BEFORE any locks are held. */
6036 error
= ofproto
->ofproto_class
->group_construct(*ofgroup
);
6038 ofputil_bucket_list_destroy(&(*ofgroup
)->buckets
);
6039 ofproto
->ofproto_class
->group_dealloc(*ofgroup
);
6044 /* Implements the OFPGC11_ADD operation specified by 'gm', adding a group to
6045 * 'ofproto''s group table. Returns 0 on success or an OpenFlow error code on
6048 add_group(struct ofproto
*ofproto
, struct ofputil_group_mod
*gm
)
6050 struct ofgroup
*ofgroup
;
6053 /* Allocate new group and initialize it. */
6054 error
= init_group(ofproto
, gm
, &ofgroup
);
6059 /* We wrlock as late as possible to minimize the time we jam any other
6060 * threads: No visible state changes before acquiring the lock. */
6061 ovs_rwlock_wrlock(&ofproto
->groups_rwlock
);
6063 if (ofproto
->n_groups
[gm
->type
] >= ofproto
->ogf
.max_groups
[gm
->type
]) {
6064 error
= OFPERR_OFPGMFC_OUT_OF_GROUPS
;
6068 if (ofproto_group_exists__(ofproto
, gm
->group_id
)) {
6069 error
= OFPERR_OFPGMFC_GROUP_EXISTS
;
6074 /* Insert new group. */
6075 hmap_insert(&ofproto
->groups
, &ofgroup
->hmap_node
,
6076 hash_int(ofgroup
->group_id
, 0));
6077 ofproto
->n_groups
[ofgroup
->type
]++;
6079 ovs_rwlock_unlock(&ofproto
->groups_rwlock
);
6084 ovs_rwlock_unlock(&ofproto
->groups_rwlock
);
6085 ofproto
->ofproto_class
->group_destruct(ofgroup
);
6086 ofputil_bucket_list_destroy(&ofgroup
->buckets
);
6087 ofproto
->ofproto_class
->group_dealloc(ofgroup
);
6092 /* Adds all of the buckets from 'ofgroup' to 'new_ofgroup'. The buckets
6093 * already in 'new_ofgroup' will be placed just after the (copy of the) bucket
6094 * in 'ofgroup' with bucket ID 'command_bucket_id'. Special
6095 * 'command_bucket_id' values OFPG15_BUCKET_FIRST and OFPG15_BUCKET_LAST are
6098 copy_buckets_for_insert_bucket(const struct ofgroup
*ofgroup
,
6099 struct ofgroup
*new_ofgroup
,
6100 uint32_t command_bucket_id
)
6102 struct ofputil_bucket
*last
= NULL
;
6104 if (command_bucket_id
<= OFPG15_BUCKET_MAX
) {
6105 /* Check here to ensure that a bucket corresponding to
6106 * command_bucket_id exists in the old bucket list.
6108 * The subsequent search of below of new_ofgroup covers
6109 * both buckets in the old bucket list and buckets added
6110 * by the insert buckets group mod message this function processes. */
6111 if (!ofputil_bucket_find(&ofgroup
->buckets
, command_bucket_id
)) {
6112 return OFPERR_OFPGMFC_UNKNOWN_BUCKET
;
6115 if (!list_is_empty(&new_ofgroup
->buckets
)) {
6116 last
= ofputil_bucket_list_back(&new_ofgroup
->buckets
);
6120 ofputil_bucket_clone_list(&new_ofgroup
->buckets
, &ofgroup
->buckets
, NULL
);
6122 if (ofputil_bucket_check_duplicate_id(&ofgroup
->buckets
)) {
6123 VLOG_WARN_RL(&rl
, "Duplicate bucket id");
6124 return OFPERR_OFPGMFC_BUCKET_EXISTS
;
6127 /* Rearrange list according to command_bucket_id */
6128 if (command_bucket_id
== OFPG15_BUCKET_LAST
) {
6129 struct ofputil_bucket
*new_first
;
6130 const struct ofputil_bucket
*first
;
6132 first
= ofputil_bucket_list_front(&ofgroup
->buckets
);
6133 new_first
= ofputil_bucket_find(&new_ofgroup
->buckets
,
6136 list_splice(new_ofgroup
->buckets
.next
, &new_first
->list_node
,
6137 &new_ofgroup
->buckets
);
6138 } else if (command_bucket_id
<= OFPG15_BUCKET_MAX
&& last
) {
6139 struct ofputil_bucket
*after
;
6141 /* Presence of bucket is checked above so after should never be NULL */
6142 after
= ofputil_bucket_find(&new_ofgroup
->buckets
, command_bucket_id
);
6144 list_splice(after
->list_node
.next
, new_ofgroup
->buckets
.next
,
6145 last
->list_node
.next
);
6151 /* Appends all of the a copy of all the buckets from 'ofgroup' to 'new_ofgroup'
6152 * with the exception of the bucket whose bucket id is 'command_bucket_id'.
6153 * Special 'command_bucket_id' values OFPG15_BUCKET_FIRST, OFPG15_BUCKET_LAST
6154 * and OFPG15_BUCKET_ALL are also honored. */
6156 copy_buckets_for_remove_bucket(const struct ofgroup
*ofgroup
,
6157 struct ofgroup
*new_ofgroup
,
6158 uint32_t command_bucket_id
)
6160 const struct ofputil_bucket
*skip
= NULL
;
6162 if (command_bucket_id
== OFPG15_BUCKET_ALL
) {
6166 if (command_bucket_id
== OFPG15_BUCKET_FIRST
) {
6167 if (!list_is_empty(&ofgroup
->buckets
)) {
6168 skip
= ofputil_bucket_list_front(&ofgroup
->buckets
);
6170 } else if (command_bucket_id
== OFPG15_BUCKET_LAST
) {
6171 if (!list_is_empty(&ofgroup
->buckets
)) {
6172 skip
= ofputil_bucket_list_back(&ofgroup
->buckets
);
6175 skip
= ofputil_bucket_find(&ofgroup
->buckets
, command_bucket_id
);
6177 return OFPERR_OFPGMFC_UNKNOWN_BUCKET
;
6181 ofputil_bucket_clone_list(&new_ofgroup
->buckets
, &ofgroup
->buckets
, skip
);
6186 /* Implements OFPGC11_MODIFY, OFPGC15_INSERT_BUCKET and
6187 * OFPGC15_REMOVE_BUCKET. Returns 0 on success or an OpenFlow error code
6190 * Note that the group is re-created and then replaces the old group in
6191 * ofproto's ofgroup hash map. Thus, the group is never altered while users of
6192 * the xlate module hold a pointer to the group. */
6194 modify_group(struct ofproto
*ofproto
, struct ofputil_group_mod
*gm
)
6196 struct ofgroup
*ofgroup
, *new_ofgroup
, *retiring
;
6199 error
= init_group(ofproto
, gm
, &new_ofgroup
);
6204 retiring
= new_ofgroup
;
6206 ovs_rwlock_wrlock(&ofproto
->groups_rwlock
);
6207 if (!ofproto_group_lookup__(ofproto
, gm
->group_id
, &ofgroup
)) {
6208 error
= OFPERR_OFPGMFC_UNKNOWN_GROUP
;
6212 /* Ofproto's group write lock is held now. */
6213 if (ofgroup
->type
!= gm
->type
6214 && ofproto
->n_groups
[gm
->type
] >= ofproto
->ogf
.max_groups
[gm
->type
]) {
6215 error
= OFPERR_OFPGMFC_OUT_OF_GROUPS
;
6219 /* Manipulate bucket list for bucket commands */
6220 if (gm
->command
== OFPGC15_INSERT_BUCKET
) {
6221 error
= copy_buckets_for_insert_bucket(ofgroup
, new_ofgroup
,
6222 gm
->command_bucket_id
);
6223 } else if (gm
->command
== OFPGC15_REMOVE_BUCKET
) {
6224 error
= copy_buckets_for_remove_bucket(ofgroup
, new_ofgroup
,
6225 gm
->command_bucket_id
);
6231 /* The group creation time does not change during modification. */
6232 *CONST_CAST(long long int *, &(new_ofgroup
->created
)) = ofgroup
->created
;
6233 *CONST_CAST(long long int *, &(new_ofgroup
->modified
)) = time_msec();
6235 error
= ofproto
->ofproto_class
->group_modify(new_ofgroup
);
6241 /* Replace ofgroup in ofproto's groups hash map with new_ofgroup. */
6242 hmap_remove(&ofproto
->groups
, &ofgroup
->hmap_node
);
6243 hmap_insert(&ofproto
->groups
, &new_ofgroup
->hmap_node
,
6244 hash_int(new_ofgroup
->group_id
, 0));
6245 if (ofgroup
->type
!= new_ofgroup
->type
) {
6246 ofproto
->n_groups
[ofgroup
->type
]--;
6247 ofproto
->n_groups
[new_ofgroup
->type
]++;
6251 ofproto_group_unref(retiring
);
6252 ovs_rwlock_unlock(&ofproto
->groups_rwlock
);
6257 delete_group__(struct ofproto
*ofproto
, struct ofgroup
*ofgroup
)
6258 OVS_RELEASES(ofproto
->groups_rwlock
)
6261 struct ofputil_flow_mod fm
;
6263 /* Delete all flow entries containing this group in a group action */
6264 match_init_catchall(&match
);
6265 flow_mod_init(&fm
, &match
, 0, NULL
, 0, OFPFC_DELETE
);
6266 fm
.delete_reason
= OFPRR_GROUP_DELETE
;
6267 fm
.out_group
= ofgroup
->group_id
;
6268 handle_flow_mod__(ofproto
, &fm
, NULL
);
6270 hmap_remove(&ofproto
->groups
, &ofgroup
->hmap_node
);
6271 /* No-one can find this group any more. */
6272 ofproto
->n_groups
[ofgroup
->type
]--;
6273 ovs_rwlock_unlock(&ofproto
->groups_rwlock
);
6274 ofproto_group_unref(ofgroup
);
6277 /* Implements OFPGC11_DELETE. */
6279 delete_group(struct ofproto
*ofproto
, uint32_t group_id
)
6281 struct ofgroup
*ofgroup
;
6283 ovs_rwlock_wrlock(&ofproto
->groups_rwlock
);
6284 if (group_id
== OFPG_ALL
) {
6286 struct hmap_node
*node
= hmap_first(&ofproto
->groups
);
6290 ofgroup
= CONTAINER_OF(node
, struct ofgroup
, hmap_node
);
6291 delete_group__(ofproto
, ofgroup
);
6292 /* Lock for each node separately, so that we will not jam the
6293 * other threads for too long time. */
6294 ovs_rwlock_wrlock(&ofproto
->groups_rwlock
);
6297 HMAP_FOR_EACH_IN_BUCKET (ofgroup
, hmap_node
,
6298 hash_int(group_id
, 0), &ofproto
->groups
) {
6299 if (ofgroup
->group_id
== group_id
) {
6300 delete_group__(ofproto
, ofgroup
);
6305 ovs_rwlock_unlock(&ofproto
->groups_rwlock
);
6309 handle_group_mod(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
6311 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
6312 struct ofputil_group_mod gm
;
6315 error
= reject_slave_controller(ofconn
);
6320 error
= ofputil_decode_group_mod(oh
, &gm
);
6325 switch (gm
.command
) {
6327 return add_group(ofproto
, &gm
);
6329 case OFPGC11_MODIFY
:
6330 return modify_group(ofproto
, &gm
);
6332 case OFPGC11_DELETE
:
6333 delete_group(ofproto
, gm
.group_id
);
6336 case OFPGC15_INSERT_BUCKET
:
6337 return modify_group(ofproto
, &gm
);
6339 case OFPGC15_REMOVE_BUCKET
:
6340 return modify_group(ofproto
, &gm
);
6343 if (gm
.command
> OFPGC11_DELETE
) {
6344 VLOG_WARN_RL(&rl
, "%s: Invalid group_mod command type %d",
6345 ofproto
->name
, gm
.command
);
6347 return OFPERR_OFPGMFC_BAD_COMMAND
;
6351 enum ofputil_table_miss
6352 ofproto_table_get_miss_config(const struct ofproto
*ofproto
, uint8_t table_id
)
6354 enum ofputil_table_miss value
;
6356 atomic_read_relaxed(&ofproto
->tables
[table_id
].miss_config
, &value
);
6361 table_mod(struct ofproto
*ofproto
, const struct ofputil_table_mod
*tm
)
6363 if (!check_table_id(ofproto
, tm
->table_id
)) {
6364 return OFPERR_OFPTMFC_BAD_TABLE
;
6365 } else if (tm
->miss_config
!= OFPUTIL_TABLE_MISS_DEFAULT
) {
6366 if (tm
->table_id
== OFPTT_ALL
) {
6368 for (i
= 0; i
< ofproto
->n_tables
; i
++) {
6369 atomic_store_relaxed(&ofproto
->tables
[i
].miss_config
,
6373 atomic_store_relaxed(&ofproto
->tables
[tm
->table_id
].miss_config
,
6381 handle_table_mod(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
6383 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
6384 struct ofputil_table_mod tm
;
6387 error
= reject_slave_controller(ofconn
);
6392 error
= ofputil_decode_table_mod(oh
, &tm
);
6397 return table_mod(ofproto
, &tm
);
6401 handle_bundle_control(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
6404 struct ofputil_bundle_ctrl_msg bctrl
;
6406 struct ofputil_bundle_ctrl_msg reply
;
6408 error
= reject_slave_controller(ofconn
);
6413 error
= ofputil_decode_bundle_ctrl(oh
, &bctrl
);
6418 reply
.bundle_id
= bctrl
.bundle_id
;
6420 switch (bctrl
.type
) {
6421 case OFPBCT_OPEN_REQUEST
:
6422 error
= ofp_bundle_open(ofconn
, bctrl
.bundle_id
, bctrl
.flags
);
6423 reply
.type
= OFPBCT_OPEN_REPLY
;
6425 case OFPBCT_CLOSE_REQUEST
:
6426 error
= ofp_bundle_close(ofconn
, bctrl
.bundle_id
, bctrl
.flags
);
6427 reply
.type
= OFPBCT_CLOSE_REPLY
;;
6429 case OFPBCT_COMMIT_REQUEST
:
6430 error
= ofp_bundle_commit(ofconn
, bctrl
.bundle_id
, bctrl
.flags
);
6431 reply
.type
= OFPBCT_COMMIT_REPLY
;
6433 case OFPBCT_DISCARD_REQUEST
:
6434 error
= ofp_bundle_discard(ofconn
, bctrl
.bundle_id
);
6435 reply
.type
= OFPBCT_DISCARD_REPLY
;
6438 case OFPBCT_OPEN_REPLY
:
6439 case OFPBCT_CLOSE_REPLY
:
6440 case OFPBCT_COMMIT_REPLY
:
6441 case OFPBCT_DISCARD_REPLY
:
6442 return OFPERR_OFPBFC_BAD_TYPE
;
6447 buf
= ofputil_encode_bundle_ctrl_reply(oh
, &reply
);
6448 ofconn_send_reply(ofconn
, buf
);
6454 handle_bundle_add(struct ofconn
*ofconn
, const struct ofp_header
*oh
)
6456 struct ofproto
*ofproto
= ofconn_get_ofproto(ofconn
);
6458 struct ofputil_bundle_add_msg badd
;
6459 struct ofp_bundle_entry
*bmsg
;
6462 error
= reject_slave_controller(ofconn
);
6467 error
= ofputil_decode_bundle_add(oh
, &badd
, &type
);
6472 bmsg
= ofp_bundle_entry_alloc(type
, badd
.msg
->xid
);
6474 if (type
== OFPTYPE_PORT_MOD
) {
6475 error
= ofputil_decode_port_mod(badd
.msg
, &bmsg
->pm
, false);
6476 } else if (type
== OFPTYPE_FLOW_MOD
) {
6477 struct ofpbuf ofpacts
;
6478 uint64_t ofpacts_stub
[1024 / 8];
6480 ofpbuf_use_stub(&ofpacts
, ofpacts_stub
, sizeof ofpacts_stub
);
6481 error
= ofputil_decode_flow_mod(&bmsg
->fm
, badd
.msg
,
6482 ofconn_get_protocol(ofconn
),
6484 u16_to_ofp(ofproto
->max_ports
),
6486 /* Move actions to heap. */
6487 bmsg
->fm
.ofpacts
= ofpbuf_steal_data(&ofpacts
);
6489 if (!error
&& bmsg
->fm
.ofpacts_len
) {
6490 error
= ofproto_check_ofpacts(ofproto
, bmsg
->fm
.ofpacts
,
6491 bmsg
->fm
.ofpacts_len
);
6498 error
= ofp_bundle_add_message(ofconn
, badd
.bundle_id
, badd
.flags
,
6503 ofp_bundle_entry_free(bmsg
);
6510 handle_openflow__(struct ofconn
*ofconn
, const struct ofpbuf
*msg
)
6511 OVS_EXCLUDED(ofproto_mutex
)
6513 const struct ofp_header
*oh
= msg
->data
;
6517 error
= ofptype_decode(&type
, oh
);
6521 if (oh
->version
>= OFP13_VERSION
&& ofpmsg_is_stat_request(oh
)
6522 && ofpmp_more(oh
)) {
6523 /* We have no buffer implementation for multipart requests.
6524 * Report overflow for requests which consists of multiple
6526 return OFPERR_OFPBRC_MULTIPART_BUFFER_OVERFLOW
;
6530 /* OpenFlow requests. */
6531 case OFPTYPE_ECHO_REQUEST
:
6532 return handle_echo_request(ofconn
, oh
);
6534 case OFPTYPE_FEATURES_REQUEST
:
6535 return handle_features_request(ofconn
, oh
);
6537 case OFPTYPE_GET_CONFIG_REQUEST
:
6538 return handle_get_config_request(ofconn
, oh
);
6540 case OFPTYPE_SET_CONFIG
:
6541 return handle_set_config(ofconn
, oh
);
6543 case OFPTYPE_PACKET_OUT
:
6544 return handle_packet_out(ofconn
, oh
);
6546 case OFPTYPE_PORT_MOD
:
6547 return handle_port_mod(ofconn
, oh
);
6549 case OFPTYPE_FLOW_MOD
:
6550 return handle_flow_mod(ofconn
, oh
);
6552 case OFPTYPE_GROUP_MOD
:
6553 return handle_group_mod(ofconn
, oh
);
6555 case OFPTYPE_TABLE_MOD
:
6556 return handle_table_mod(ofconn
, oh
);
6558 case OFPTYPE_METER_MOD
:
6559 return handle_meter_mod(ofconn
, oh
);
6561 case OFPTYPE_BARRIER_REQUEST
:
6562 return handle_barrier_request(ofconn
, oh
);
6564 case OFPTYPE_ROLE_REQUEST
:
6565 return handle_role_request(ofconn
, oh
);
6567 /* OpenFlow replies. */
6568 case OFPTYPE_ECHO_REPLY
:
6571 /* Nicira extension requests. */
6572 case OFPTYPE_FLOW_MOD_TABLE_ID
:
6573 return handle_nxt_flow_mod_table_id(ofconn
, oh
);
6575 case OFPTYPE_SET_FLOW_FORMAT
:
6576 return handle_nxt_set_flow_format(ofconn
, oh
);
6578 case OFPTYPE_SET_PACKET_IN_FORMAT
:
6579 return handle_nxt_set_packet_in_format(ofconn
, oh
);
6581 case OFPTYPE_SET_CONTROLLER_ID
:
6582 return handle_nxt_set_controller_id(ofconn
, oh
);
6584 case OFPTYPE_FLOW_AGE
:
6585 /* Nothing to do. */
6588 case OFPTYPE_FLOW_MONITOR_CANCEL
:
6589 return handle_flow_monitor_cancel(ofconn
, oh
);
6591 case OFPTYPE_SET_ASYNC_CONFIG
:
6592 return handle_nxt_set_async_config(ofconn
, oh
);
6594 case OFPTYPE_GET_ASYNC_REQUEST
:
6595 return handle_nxt_get_async_request(ofconn
, oh
);
6597 /* Statistics requests. */
6598 case OFPTYPE_DESC_STATS_REQUEST
:
6599 return handle_desc_stats_request(ofconn
, oh
);
6601 case OFPTYPE_FLOW_STATS_REQUEST
:
6602 return handle_flow_stats_request(ofconn
, oh
);
6604 case OFPTYPE_AGGREGATE_STATS_REQUEST
:
6605 return handle_aggregate_stats_request(ofconn
, oh
);
6607 case OFPTYPE_TABLE_STATS_REQUEST
:
6608 return handle_table_stats_request(ofconn
, oh
);
6610 case OFPTYPE_TABLE_FEATURES_STATS_REQUEST
:
6611 return handle_table_features_request(ofconn
, oh
);
6613 case OFPTYPE_PORT_STATS_REQUEST
:
6614 return handle_port_stats_request(ofconn
, oh
);
6616 case OFPTYPE_QUEUE_STATS_REQUEST
:
6617 return handle_queue_stats_request(ofconn
, oh
);
6619 case OFPTYPE_PORT_DESC_STATS_REQUEST
:
6620 return handle_port_desc_stats_request(ofconn
, oh
);
6622 case OFPTYPE_FLOW_MONITOR_STATS_REQUEST
:
6623 return handle_flow_monitor_request(ofconn
, oh
);
6625 case OFPTYPE_METER_STATS_REQUEST
:
6626 case OFPTYPE_METER_CONFIG_STATS_REQUEST
:
6627 return handle_meter_request(ofconn
, oh
, type
);
6629 case OFPTYPE_METER_FEATURES_STATS_REQUEST
:
6630 return handle_meter_features_request(ofconn
, oh
);
6632 case OFPTYPE_GROUP_STATS_REQUEST
:
6633 return handle_group_stats_request(ofconn
, oh
);
6635 case OFPTYPE_GROUP_DESC_STATS_REQUEST
:
6636 return handle_group_desc_stats_request(ofconn
, oh
);
6638 case OFPTYPE_GROUP_FEATURES_STATS_REQUEST
:
6639 return handle_group_features_stats_request(ofconn
, oh
);
6641 case OFPTYPE_QUEUE_GET_CONFIG_REQUEST
:
6642 return handle_queue_get_config_request(ofconn
, oh
);
6644 case OFPTYPE_BUNDLE_CONTROL
:
6645 return handle_bundle_control(ofconn
, oh
);
6647 case OFPTYPE_BUNDLE_ADD_MESSAGE
:
6648 return handle_bundle_add(ofconn
, oh
);
6652 case OFPTYPE_FEATURES_REPLY
:
6653 case OFPTYPE_GET_CONFIG_REPLY
:
6654 case OFPTYPE_PACKET_IN
:
6655 case OFPTYPE_FLOW_REMOVED
:
6656 case OFPTYPE_PORT_STATUS
:
6657 case OFPTYPE_BARRIER_REPLY
:
6658 case OFPTYPE_QUEUE_GET_CONFIG_REPLY
:
6659 case OFPTYPE_DESC_STATS_REPLY
:
6660 case OFPTYPE_FLOW_STATS_REPLY
:
6661 case OFPTYPE_QUEUE_STATS_REPLY
:
6662 case OFPTYPE_PORT_STATS_REPLY
:
6663 case OFPTYPE_TABLE_STATS_REPLY
:
6664 case OFPTYPE_AGGREGATE_STATS_REPLY
:
6665 case OFPTYPE_PORT_DESC_STATS_REPLY
:
6666 case OFPTYPE_ROLE_REPLY
:
6667 case OFPTYPE_FLOW_MONITOR_PAUSED
:
6668 case OFPTYPE_FLOW_MONITOR_RESUMED
:
6669 case OFPTYPE_FLOW_MONITOR_STATS_REPLY
:
6670 case OFPTYPE_GET_ASYNC_REPLY
:
6671 case OFPTYPE_GROUP_STATS_REPLY
:
6672 case OFPTYPE_GROUP_DESC_STATS_REPLY
:
6673 case OFPTYPE_GROUP_FEATURES_STATS_REPLY
:
6674 case OFPTYPE_METER_STATS_REPLY
:
6675 case OFPTYPE_METER_CONFIG_STATS_REPLY
:
6676 case OFPTYPE_METER_FEATURES_STATS_REPLY
:
6677 case OFPTYPE_TABLE_FEATURES_STATS_REPLY
:
6678 case OFPTYPE_ROLE_STATUS
:
6680 if (ofpmsg_is_stat_request(oh
)) {
6681 return OFPERR_OFPBRC_BAD_STAT
;
6683 return OFPERR_OFPBRC_BAD_TYPE
;
6689 handle_openflow(struct ofconn
*ofconn
, const struct ofpbuf
*ofp_msg
)
6690 OVS_EXCLUDED(ofproto_mutex
)
6692 enum ofperr error
= handle_openflow__(ofconn
, ofp_msg
);
6695 ofconn_send_error(ofconn
, ofp_msg
->data
, error
);
6697 COVERAGE_INC(ofproto_recv_openflow
);
6700 /* Asynchronous operations. */
6703 send_buffered_packet(const struct flow_mod_requester
*req
, uint32_t buffer_id
,
6705 OVS_REQUIRES(ofproto_mutex
)
6707 if (req
&& req
->ofconn
&& buffer_id
!= UINT32_MAX
) {
6708 struct ofproto
*ofproto
= ofconn_get_ofproto(req
->ofconn
);
6709 struct dp_packet
*packet
;
6713 error
= ofconn_pktbuf_retrieve(req
->ofconn
, buffer_id
, &packet
,
6716 struct rule_execute
*re
;
6718 ofproto_rule_ref(rule
);
6720 re
= xmalloc(sizeof *re
);
6722 re
->in_port
= in_port
;
6723 re
->packet
= packet
;
6725 if (!guarded_list_push_back(&ofproto
->rule_executes
,
6726 &re
->list_node
, 1024)) {
6727 ofproto_rule_unref(rule
);
6728 dp_packet_delete(re
->packet
);
6732 ofconn_send_error(req
->ofconn
, req
->request
, error
);
6738 pick_datapath_id(const struct ofproto
*ofproto
)
6740 const struct ofport
*port
;
6742 port
= ofproto_get_port(ofproto
, OFPP_LOCAL
);
6744 uint8_t ea
[ETH_ADDR_LEN
];
6747 error
= netdev_get_etheraddr(port
->netdev
, ea
);
6749 return eth_addr_to_uint64(ea
);
6751 VLOG_WARN("%s: could not get MAC address for %s (%s)",
6752 ofproto
->name
, netdev_get_name(port
->netdev
),
6753 ovs_strerror(error
));
6755 return ofproto
->fallback_dpid
;
6759 pick_fallback_dpid(void)
6761 uint8_t ea
[ETH_ADDR_LEN
];
6762 eth_addr_nicira_random(ea
);
6763 return eth_addr_to_uint64(ea
);
6766 /* Table overflow policy. */
6768 /* Chooses and updates 'rulep' with a rule to evict from 'table'. Sets 'rulep'
6769 * to NULL if the table is not configured to evict rules or if the table
6770 * contains no evictable rules. (Rules with a readlock on their evict rwlock,
6771 * or with no timeouts are not evictable.) */
6773 choose_rule_to_evict(struct oftable
*table
, struct rule
**rulep
)
6774 OVS_REQUIRES(ofproto_mutex
)
6776 struct eviction_group
*evg
;
6779 if (!table
->eviction_fields
) {
6783 /* In the common case, the outer and inner loops here will each be entered
6786 * - The inner loop normally "return"s in its first iteration. If the
6787 * eviction group has any evictable rules, then it always returns in
6790 * - The outer loop only iterates more than once if the largest eviction
6791 * group has no evictable rules.
6793 * - The outer loop can exit only if table's 'max_flows' is all filled up
6794 * by unevictable rules. */
6795 HEAP_FOR_EACH (evg
, size_node
, &table
->eviction_groups_by_size
) {
6798 HEAP_FOR_EACH (rule
, evg_node
, &evg
->rules
) {
6807 /* Eviction groups. */
6809 /* Returns the priority to use for an eviction_group that contains 'n_rules'
6810 * rules. The priority contains low-order random bits to ensure that eviction
6811 * groups with the same number of rules are prioritized randomly. */
6813 eviction_group_priority(size_t n_rules
)
6815 uint16_t size
= MIN(UINT16_MAX
, n_rules
);
6816 return (size
<< 16) | random_uint16();
6819 /* Updates 'evg', an eviction_group within 'table', following a change that
6820 * adds or removes rules in 'evg'. */
6822 eviction_group_resized(struct oftable
*table
, struct eviction_group
*evg
)
6823 OVS_REQUIRES(ofproto_mutex
)
6825 heap_change(&table
->eviction_groups_by_size
, &evg
->size_node
,
6826 eviction_group_priority(heap_count(&evg
->rules
)));
6829 /* Destroys 'evg', an eviction_group within 'table':
6831 * - Removes all the rules, if any, from 'evg'. (It doesn't destroy the
6832 * rules themselves, just removes them from the eviction group.)
6834 * - Removes 'evg' from 'table'.
6838 eviction_group_destroy(struct oftable
*table
, struct eviction_group
*evg
)
6839 OVS_REQUIRES(ofproto_mutex
)
6841 while (!heap_is_empty(&evg
->rules
)) {
6844 rule
= CONTAINER_OF(heap_pop(&evg
->rules
), struct rule
, evg_node
);
6845 rule
->eviction_group
= NULL
;
6847 hmap_remove(&table
->eviction_groups_by_id
, &evg
->id_node
);
6848 heap_remove(&table
->eviction_groups_by_size
, &evg
->size_node
);
6849 heap_destroy(&evg
->rules
);
6853 /* Removes 'rule' from its eviction group, if any. */
6855 eviction_group_remove_rule(struct rule
*rule
)
6856 OVS_REQUIRES(ofproto_mutex
)
6858 if (rule
->eviction_group
) {
6859 struct oftable
*table
= &rule
->ofproto
->tables
[rule
->table_id
];
6860 struct eviction_group
*evg
= rule
->eviction_group
;
6862 rule
->eviction_group
= NULL
;
6863 heap_remove(&evg
->rules
, &rule
->evg_node
);
6864 if (heap_is_empty(&evg
->rules
)) {
6865 eviction_group_destroy(table
, evg
);
6867 eviction_group_resized(table
, evg
);
6872 /* Hashes the 'rule''s values for the eviction_fields of 'rule''s table, and
6873 * returns the hash value. */
6875 eviction_group_hash_rule(struct rule
*rule
)
6876 OVS_REQUIRES(ofproto_mutex
)
6878 struct oftable
*table
= &rule
->ofproto
->tables
[rule
->table_id
];
6879 const struct mf_subfield
*sf
;
6883 hash
= table
->eviction_group_id_basis
;
6884 miniflow_expand(&rule
->cr
.match
.flow
, &flow
);
6885 for (sf
= table
->eviction_fields
;
6886 sf
< &table
->eviction_fields
[table
->n_eviction_fields
];
6889 if (mf_are_prereqs_ok(sf
->field
, &flow
)) {
6890 union mf_value value
;
6892 mf_get_value(sf
->field
, &flow
, &value
);
6894 bitwise_zero(&value
, sf
->field
->n_bytes
, 0, sf
->ofs
);
6896 if (sf
->ofs
+ sf
->n_bits
< sf
->field
->n_bytes
* 8) {
6897 unsigned int start
= sf
->ofs
+ sf
->n_bits
;
6898 bitwise_zero(&value
, sf
->field
->n_bytes
, start
,
6899 sf
->field
->n_bytes
* 8 - start
);
6901 hash
= hash_bytes(&value
, sf
->field
->n_bytes
, hash
);
6903 hash
= hash_int(hash
, 0);
6910 /* Returns an eviction group within 'table' with the given 'id', creating one
6912 static struct eviction_group
*
6913 eviction_group_find(struct oftable
*table
, uint32_t id
)
6914 OVS_REQUIRES(ofproto_mutex
)
6916 struct eviction_group
*evg
;
6918 HMAP_FOR_EACH_WITH_HASH (evg
, id_node
, id
, &table
->eviction_groups_by_id
) {
6922 evg
= xmalloc(sizeof *evg
);
6923 hmap_insert(&table
->eviction_groups_by_id
, &evg
->id_node
, id
);
6924 heap_insert(&table
->eviction_groups_by_size
, &evg
->size_node
,
6925 eviction_group_priority(0));
6926 heap_init(&evg
->rules
);
6931 /* Returns an eviction priority for 'rule'. The return value should be
6932 * interpreted so that higher priorities make a rule more attractive candidates
6934 * Called only if have a timeout. */
6936 rule_eviction_priority(struct ofproto
*ofproto
, struct rule
*rule
)
6937 OVS_REQUIRES(ofproto_mutex
)
6939 long long int expiration
= LLONG_MAX
;
6940 long long int modified
;
6941 uint32_t expiration_offset
;
6943 /* 'modified' needs protection even when we hold 'ofproto_mutex'. */
6944 ovs_mutex_lock(&rule
->mutex
);
6945 modified
= rule
->modified
;
6946 ovs_mutex_unlock(&rule
->mutex
);
6948 if (rule
->hard_timeout
) {
6949 expiration
= modified
+ rule
->hard_timeout
* 1000;
6951 if (rule
->idle_timeout
) {
6952 uint64_t packets
, bytes
;
6954 long long int idle_expiration
;
6956 ofproto
->ofproto_class
->rule_get_stats(rule
, &packets
, &bytes
, &used
);
6957 idle_expiration
= used
+ rule
->idle_timeout
* 1000;
6958 expiration
= MIN(expiration
, idle_expiration
);
6961 if (expiration
== LLONG_MAX
) {
6965 /* Calculate the time of expiration as a number of (approximate) seconds
6966 * after program startup.
6968 * This should work OK for program runs that last UINT32_MAX seconds or
6969 * less. Therefore, please restart OVS at least once every 136 years. */
6970 expiration_offset
= (expiration
>> 10) - (time_boot_msec() >> 10);
6972 /* Invert the expiration offset because we're using a max-heap. */
6973 return UINT32_MAX
- expiration_offset
;
6976 /* Adds 'rule' to an appropriate eviction group for its oftable's
6977 * configuration. Does nothing if 'rule''s oftable doesn't have eviction
6978 * enabled, or if 'rule' is a permanent rule (one that will never expire on its
6981 * The caller must ensure that 'rule' is not already in an eviction group. */
6983 eviction_group_add_rule(struct rule
*rule
)
6984 OVS_REQUIRES(ofproto_mutex
)
6986 struct ofproto
*ofproto
= rule
->ofproto
;
6987 struct oftable
*table
= &ofproto
->tables
[rule
->table_id
];
6990 /* Timeouts may be modified only when holding 'ofproto_mutex'. We have it
6991 * so no additional protection is needed. */
6992 has_timeout
= rule
->hard_timeout
|| rule
->idle_timeout
;
6994 if (table
->eviction_fields
&& has_timeout
) {
6995 struct eviction_group
*evg
;
6997 evg
= eviction_group_find(table
, eviction_group_hash_rule(rule
));
6999 rule
->eviction_group
= evg
;
7000 heap_insert(&evg
->rules
, &rule
->evg_node
,
7001 rule_eviction_priority(ofproto
, rule
));
7002 eviction_group_resized(table
, evg
);
7008 /* Initializes 'table'. */
7010 oftable_init(struct oftable
*table
)
7012 memset(table
, 0, sizeof *table
);
7013 classifier_init(&table
->cls
, flow_segment_u64s
);
7014 table
->max_flows
= UINT_MAX
;
7015 atomic_init(&table
->miss_config
, OFPUTIL_TABLE_MISS_DEFAULT
);
7017 classifier_set_prefix_fields(&table
->cls
, default_prefix_fields
,
7018 ARRAY_SIZE(default_prefix_fields
));
7020 atomic_init(&table
->n_matched
, 0);
7021 atomic_init(&table
->n_missed
, 0);
7024 /* Destroys 'table', including its classifier and eviction groups.
7026 * The caller is responsible for freeing 'table' itself. */
7028 oftable_destroy(struct oftable
*table
)
7030 ovs_assert(classifier_is_empty(&table
->cls
));
7031 oftable_disable_eviction(table
);
7032 classifier_destroy(&table
->cls
);
7036 /* Changes the name of 'table' to 'name'. If 'name' is NULL or the empty
7037 * string, then 'table' will use its default name.
7039 * This only affects the name exposed for a table exposed through the OpenFlow
7040 * OFPST_TABLE (as printed by "ovs-ofctl dump-tables"). */
7042 oftable_set_name(struct oftable
*table
, const char *name
)
7044 if (name
&& name
[0]) {
7045 int len
= strnlen(name
, OFP_MAX_TABLE_NAME_LEN
);
7046 if (!table
->name
|| strncmp(name
, table
->name
, len
)) {
7048 table
->name
= xmemdup0(name
, len
);
7056 /* oftables support a choice of two policies when adding a rule would cause the
7057 * number of flows in the table to exceed the configured maximum number: either
7058 * they can refuse to add the new flow or they can evict some existing flow.
7059 * This function configures the former policy on 'table'. */
7061 oftable_disable_eviction(struct oftable
*table
)
7062 OVS_REQUIRES(ofproto_mutex
)
7064 if (table
->eviction_fields
) {
7065 struct eviction_group
*evg
, *next
;
7067 HMAP_FOR_EACH_SAFE (evg
, next
, id_node
,
7068 &table
->eviction_groups_by_id
) {
7069 eviction_group_destroy(table
, evg
);
7071 hmap_destroy(&table
->eviction_groups_by_id
);
7072 heap_destroy(&table
->eviction_groups_by_size
);
7074 free(table
->eviction_fields
);
7075 table
->eviction_fields
= NULL
;
7076 table
->n_eviction_fields
= 0;
7080 /* oftables support a choice of two policies when adding a rule would cause the
7081 * number of flows in the table to exceed the configured maximum number: either
7082 * they can refuse to add the new flow or they can evict some existing flow.
7083 * This function configures the latter policy on 'table', with fairness based
7084 * on the values of the 'n_fields' fields specified in 'fields'. (Specifying
7085 * 'n_fields' as 0 disables fairness.) */
7087 oftable_enable_eviction(struct oftable
*table
,
7088 const struct mf_subfield
*fields
, size_t n_fields
)
7089 OVS_REQUIRES(ofproto_mutex
)
7093 if (table
->eviction_fields
7094 && n_fields
== table
->n_eviction_fields
7096 || !memcmp(fields
, table
->eviction_fields
,
7097 n_fields
* sizeof *fields
))) {
7102 oftable_disable_eviction(table
);
7104 table
->n_eviction_fields
= n_fields
;
7105 table
->eviction_fields
= xmemdup(fields
, n_fields
* sizeof *fields
);
7107 table
->eviction_group_id_basis
= random_uint32();
7108 hmap_init(&table
->eviction_groups_by_id
);
7109 heap_init(&table
->eviction_groups_by_size
);
7111 CLS_FOR_EACH (rule
, cr
, &table
->cls
) {
7112 eviction_group_add_rule(rule
);
7116 /* Inserts 'rule' from the ofproto data structures BEFORE caller has inserted
7117 * it to the classifier. */
7119 ofproto_rule_insert__(struct ofproto
*ofproto
, struct rule
*rule
)
7120 OVS_REQUIRES(ofproto_mutex
)
7122 const struct rule_actions
*actions
= rule_get_actions(rule
);
7124 if (rule
->hard_timeout
|| rule
->idle_timeout
) {
7125 list_insert(&ofproto
->expirable
, &rule
->expirable
);
7127 cookies_insert(ofproto
, rule
);
7128 eviction_group_add_rule(rule
);
7129 if (actions
->has_meter
) {
7130 meter_insert_rule(rule
);
7134 /* Removes 'rule' from the ofproto data structures AFTER caller has removed
7135 * it from the classifier. */
7137 ofproto_rule_remove__(struct ofproto
*ofproto
, struct rule
*rule
)
7138 OVS_REQUIRES(ofproto_mutex
)
7140 cookies_remove(ofproto
, rule
);
7142 eviction_group_remove_rule(rule
);
7143 if (!list_is_empty(&rule
->expirable
)) {
7144 list_remove(&rule
->expirable
);
7146 if (!list_is_empty(&rule
->meter_list_node
)) {
7147 list_remove(&rule
->meter_list_node
);
7148 list_init(&rule
->meter_list_node
);
7153 oftable_remove_rule(struct rule
*rule
)
7154 OVS_REQUIRES(ofproto_mutex
)
7156 struct classifier
*cls
= &rule
->ofproto
->tables
[rule
->table_id
].cls
;
7158 if (classifier_remove(cls
, &rule
->cr
)) {
7159 ofproto_rule_remove__(rule
->ofproto
, rule
);
7163 /* unixctl commands. */
7166 ofproto_lookup(const char *name
)
7168 struct ofproto
*ofproto
;
7170 HMAP_FOR_EACH_WITH_HASH (ofproto
, hmap_node
, hash_string(name
, 0),
7172 if (!strcmp(ofproto
->name
, name
)) {
7180 ofproto_unixctl_list(struct unixctl_conn
*conn
, int argc OVS_UNUSED
,
7181 const char *argv
[] OVS_UNUSED
, void *aux OVS_UNUSED
)
7183 struct ofproto
*ofproto
;
7187 HMAP_FOR_EACH (ofproto
, hmap_node
, &all_ofprotos
) {
7188 ds_put_format(&results
, "%s\n", ofproto
->name
);
7190 unixctl_command_reply(conn
, ds_cstr(&results
));
7191 ds_destroy(&results
);
7195 ofproto_unixctl_init(void)
7197 static bool registered
;
7203 unixctl_command_register("ofproto/list", "", 0, 0,
7204 ofproto_unixctl_list
, NULL
);
7207 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
7209 * This is deprecated. It is only for compatibility with broken device drivers
7210 * in old versions of Linux that do not properly support VLANs when VLAN
7211 * devices are not used. When broken device drivers are no longer in
7212 * widespread use, we will delete these interfaces. */
7214 /* Sets a 1-bit in the 4096-bit 'vlan_bitmap' for each VLAN ID that is matched
7215 * (exactly) by an OpenFlow rule in 'ofproto'. */
7217 ofproto_get_vlan_usage(struct ofproto
*ofproto
, unsigned long int *vlan_bitmap
)
7220 struct cls_rule target
;
7221 const struct oftable
*oftable
;
7223 match_init_catchall(&match
);
7224 match_set_vlan_vid_masked(&match
, htons(VLAN_CFI
), htons(VLAN_CFI
));
7225 cls_rule_init(&target
, &match
, 0);
7227 free(ofproto
->vlan_bitmap
);
7228 ofproto
->vlan_bitmap
= bitmap_allocate(4096);
7229 ofproto
->vlans_changed
= false;
7231 OFPROTO_FOR_EACH_TABLE (oftable
, ofproto
) {
7234 CLS_FOR_EACH_TARGET (rule
, cr
, &oftable
->cls
, &target
) {
7235 if (minimask_get_vid_mask(&rule
->cr
.match
.mask
) == VLAN_VID_MASK
) {
7236 uint16_t vid
= miniflow_get_vid(&rule
->cr
.match
.flow
);
7238 bitmap_set1(vlan_bitmap
, vid
);
7239 bitmap_set1(ofproto
->vlan_bitmap
, vid
);
7244 cls_rule_destroy(&target
);
7247 /* Returns true if new VLANs have come into use by the flow table since the
7248 * last call to ofproto_get_vlan_usage().
7250 * We don't track when old VLANs stop being used. */
7252 ofproto_has_vlan_usage_changed(const struct ofproto
*ofproto
)
7254 return ofproto
->vlans_changed
;
7257 /* Configures a VLAN splinter binding between the ports identified by OpenFlow
7258 * port numbers 'vlandev_ofp_port' and 'realdev_ofp_port'. If
7259 * 'realdev_ofp_port' is nonzero, then the VLAN device is enslaved to the real
7260 * device as a VLAN splinter for VLAN ID 'vid'. If 'realdev_ofp_port' is zero,
7261 * then the VLAN device is un-enslaved. */
7263 ofproto_port_set_realdev(struct ofproto
*ofproto
, ofp_port_t vlandev_ofp_port
,
7264 ofp_port_t realdev_ofp_port
, int vid
)
7266 struct ofport
*ofport
;
7269 ovs_assert(vlandev_ofp_port
!= realdev_ofp_port
);
7271 ofport
= ofproto_get_port(ofproto
, vlandev_ofp_port
);
7273 VLOG_WARN("%s: cannot set realdev on nonexistent port %"PRIu16
,
7274 ofproto
->name
, vlandev_ofp_port
);
7278 if (!ofproto
->ofproto_class
->set_realdev
) {
7279 if (!vlandev_ofp_port
) {
7282 VLOG_WARN("%s: vlan splinters not supported", ofproto
->name
);
7286 error
= ofproto
->ofproto_class
->set_realdev(ofport
, realdev_ofp_port
, vid
);
7288 VLOG_WARN("%s: setting realdev on port %"PRIu16
" (%s) failed (%s)",
7289 ofproto
->name
, vlandev_ofp_port
,
7290 netdev_get_name(ofport
->netdev
), ovs_strerror(error
));