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064af421 | 1 | /* |
e0edde6f | 2 | * Copyright (c) 2009, 2010, 2011, 2012 Nicira, Inc. |
43253595 | 3 | * Copyright (c) 2010 Jean Tourrilhes - HP-Labs. |
064af421 | 4 | * |
a14bc59f BP |
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: | |
064af421 | 8 | * |
a14bc59f BP |
9 | * http://www.apache.org/licenses/LICENSE-2.0 |
10 | * | |
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. | |
064af421 BP |
16 | */ |
17 | ||
18 | #include <config.h> | |
19 | #include "ofproto.h" | |
20 | #include <errno.h> | |
21 | #include <inttypes.h> | |
064af421 BP |
22 | #include <stdbool.h> |
23 | #include <stdlib.h> | |
52a90c29 | 24 | #include "bitmap.h" |
10a24935 | 25 | #include "byte-order.h" |
064af421 | 26 | #include "classifier.h" |
19a87e36 | 27 | #include "connmgr.h" |
064af421 | 28 | #include "coverage.h" |
4f2cad2c | 29 | #include "dynamic-string.h" |
ca0f572c BP |
30 | #include "hash.h" |
31 | #include "hmap.h" | |
254750ce | 32 | #include "meta-flow.h" |
064af421 | 33 | #include "netdev.h" |
09246b99 | 34 | #include "nx-match.h" |
f25d0cf3 | 35 | #include "ofp-actions.h" |
90bf1e07 | 36 | #include "ofp-errors.h" |
982697a4 | 37 | #include "ofp-msgs.h" |
064af421 | 38 | #include "ofp-print.h" |
fa37b408 | 39 | #include "ofp-util.h" |
064af421 | 40 | #include "ofpbuf.h" |
5bee6e26 | 41 | #include "ofproto-provider.h" |
064af421 BP |
42 | #include "openflow/nicira-ext.h" |
43 | #include "openflow/openflow.h" | |
064af421 BP |
44 | #include "packets.h" |
45 | #include "pinsched.h" | |
46 | #include "pktbuf.h" | |
47 | #include "poll-loop.h" | |
254750ce | 48 | #include "random.h" |
064af421 | 49 | #include "shash.h" |
0d085684 | 50 | #include "simap.h" |
b3c01ed3 | 51 | #include "sset.h" |
064af421 | 52 | #include "timeval.h" |
c4617b3c | 53 | #include "unaligned.h" |
4f2cad2c | 54 | #include "unixctl.h" |
5136ce49 | 55 | #include "vlog.h" |
064af421 | 56 | |
d98e6007 | 57 | VLOG_DEFINE_THIS_MODULE(ofproto); |
064af421 | 58 | |
d76f09ea | 59 | COVERAGE_DEFINE(ofproto_error); |
d76f09ea | 60 | COVERAGE_DEFINE(ofproto_flush); |
d76f09ea | 61 | COVERAGE_DEFINE(ofproto_no_packet_in); |
d76f09ea BP |
62 | COVERAGE_DEFINE(ofproto_packet_out); |
63 | COVERAGE_DEFINE(ofproto_queue_req); | |
64 | COVERAGE_DEFINE(ofproto_recv_openflow); | |
65 | COVERAGE_DEFINE(ofproto_reinit_ports); | |
d76f09ea BP |
66 | COVERAGE_DEFINE(ofproto_uninstallable); |
67 | COVERAGE_DEFINE(ofproto_update_port); | |
68 | ||
7ee20df1 BP |
69 | enum ofproto_state { |
70 | S_OPENFLOW, /* Processing OpenFlow commands. */ | |
254750ce | 71 | S_EVICT, /* Evicting flows from over-limit tables. */ |
7ee20df1 BP |
72 | S_FLUSH, /* Deleting all flow table rules. */ |
73 | }; | |
74 | ||
75 | enum ofoperation_type { | |
76 | OFOPERATION_ADD, | |
77 | OFOPERATION_DELETE, | |
78 | OFOPERATION_MODIFY | |
79 | }; | |
80 | ||
81 | /* A single OpenFlow request can execute any number of operations. The | |
82 | * ofopgroup maintain OpenFlow state common to all of the operations, e.g. the | |
83 | * ofconn to which an error reply should be sent if necessary. | |
84 | * | |
85 | * ofproto initiates some operations internally. These operations are still | |
86 | * assigned to groups but will not have an associated ofconn. */ | |
87 | struct ofopgroup { | |
88 | struct ofproto *ofproto; /* Owning ofproto. */ | |
89 | struct list ofproto_node; /* In ofproto's "pending" list. */ | |
90 | struct list ops; /* List of "struct ofoperation"s. */ | |
e615b0a3 | 91 | int n_running; /* Number of ops still pending. */ |
7ee20df1 BP |
92 | |
93 | /* Data needed to send OpenFlow reply on failure or to send a buffered | |
94 | * packet on success. | |
95 | * | |
96 | * If list_is_empty(ofconn_node) then this ofopgroup never had an | |
97 | * associated ofconn or its ofconn's connection dropped after it initiated | |
98 | * the operation. In the latter case 'ofconn' is a wild pointer that | |
99 | * refers to freed memory, so the 'ofconn' member must be used only if | |
100 | * !list_is_empty(ofconn_node). | |
101 | */ | |
102 | struct list ofconn_node; /* In ofconn's list of pending opgroups. */ | |
103 | struct ofconn *ofconn; /* ofconn for reply (but see note above). */ | |
104 | struct ofp_header *request; /* Original request (truncated at 64 bytes). */ | |
105 | uint32_t buffer_id; /* Buffer id from original request. */ | |
7ee20df1 BP |
106 | }; |
107 | ||
7024dffe BP |
108 | static struct ofopgroup *ofopgroup_create_unattached(struct ofproto *); |
109 | static struct ofopgroup *ofopgroup_create(struct ofproto *, struct ofconn *, | |
110 | const struct ofp_header *, | |
111 | uint32_t buffer_id); | |
7ee20df1 | 112 | static void ofopgroup_submit(struct ofopgroup *); |
e615b0a3 | 113 | static void ofopgroup_complete(struct ofopgroup *); |
7ee20df1 BP |
114 | |
115 | /* A single flow table operation. */ | |
116 | struct ofoperation { | |
117 | struct ofopgroup *group; /* Owning group. */ | |
118 | struct list group_node; /* In ofopgroup's "ops" list. */ | |
119 | struct hmap_node hmap_node; /* In ofproto's "deletions" hmap. */ | |
120 | struct rule *rule; /* Rule being operated upon. */ | |
121 | enum ofoperation_type type; /* Type of operation. */ | |
08043761 BP |
122 | |
123 | /* OFOPERATION_ADD. */ | |
124 | struct rule *victim; /* Rule being replaced, if any.. */ | |
125 | ||
126 | /* OFOPERATION_MODIFY: The old actions, if the actions are changing. */ | |
127 | struct ofpact *ofpacts; | |
128 | size_t ofpacts_len; | |
129 | ||
2b07c8b1 BP |
130 | /* OFOPERATION_DELETE. */ |
131 | enum ofp_flow_removed_reason reason; /* Reason flow was removed. */ | |
132 | ||
7ee20df1 | 133 | ovs_be64 flow_cookie; /* Rule's old flow cookie. */ |
e615b0a3 | 134 | enum ofperr error; /* 0 if no error. */ |
7ee20df1 BP |
135 | }; |
136 | ||
a7d94793 BP |
137 | static struct ofoperation *ofoperation_create(struct ofopgroup *, |
138 | struct rule *, | |
2b07c8b1 BP |
139 | enum ofoperation_type, |
140 | enum ofp_flow_removed_reason); | |
7ee20df1 BP |
141 | static void ofoperation_destroy(struct ofoperation *); |
142 | ||
d0918789 BP |
143 | /* oftable. */ |
144 | static void oftable_init(struct oftable *); | |
145 | static void oftable_destroy(struct oftable *); | |
878ae780 | 146 | |
254750ce BP |
147 | static void oftable_set_name(struct oftable *, const char *name); |
148 | ||
149 | static void oftable_disable_eviction(struct oftable *); | |
150 | static void oftable_enable_eviction(struct oftable *, | |
151 | const struct mf_subfield *fields, | |
152 | size_t n_fields); | |
153 | ||
d0918789 BP |
154 | static void oftable_remove_rule(struct rule *); |
155 | static struct rule *oftable_replace_rule(struct rule *); | |
156 | static void oftable_substitute_rule(struct rule *old, struct rule *new); | |
064af421 | 157 | |
254750ce BP |
158 | /* A set of rules within a single OpenFlow table (oftable) that have the same |
159 | * values for the oftable's eviction_fields. A rule to be evicted, when one is | |
160 | * needed, is taken from the eviction group that contains the greatest number | |
161 | * of rules. | |
162 | * | |
163 | * An oftable owns any number of eviction groups, each of which contains any | |
164 | * number of rules. | |
165 | * | |
166 | * Membership in an eviction group is imprecise, based on the hash of the | |
167 | * oftable's eviction_fields (in the eviction_group's id_node.hash member). | |
168 | * That is, if two rules have different eviction_fields, but those | |
169 | * eviction_fields hash to the same value, then they will belong to the same | |
170 | * eviction_group anyway. | |
171 | * | |
172 | * (When eviction is not enabled on an oftable, we don't track any eviction | |
173 | * groups, to save time and space.) */ | |
174 | struct eviction_group { | |
175 | struct hmap_node id_node; /* In oftable's "eviction_groups_by_id". */ | |
176 | struct heap_node size_node; /* In oftable's "eviction_groups_by_size". */ | |
177 | struct heap rules; /* Contains "struct rule"s. */ | |
178 | }; | |
179 | ||
180 | static struct rule *choose_rule_to_evict(struct oftable *); | |
181 | static void ofproto_evict(struct ofproto *); | |
182 | static uint32_t rule_eviction_priority(struct rule *); | |
f29152ca | 183 | |
d0918789 BP |
184 | /* ofport. */ |
185 | static void ofport_destroy__(struct ofport *); | |
186 | static void ofport_destroy(struct ofport *); | |
187 | ||
188 | static void update_port(struct ofproto *, const char *devname); | |
189 | static int init_ports(struct ofproto *); | |
190 | static void reinit_ports(struct ofproto *); | |
7ee20df1 | 191 | |
254750ce BP |
192 | /* rule. */ |
193 | static void ofproto_rule_destroy__(struct rule *); | |
194 | static void ofproto_rule_send_removed(struct rule *, uint8_t reason); | |
195 | static bool rule_is_modifiable(const struct rule *); | |
254750ce | 196 | |
d0918789 | 197 | /* OpenFlow. */ |
90bf1e07 BP |
198 | static enum ofperr add_flow(struct ofproto *, struct ofconn *, |
199 | const struct ofputil_flow_mod *, | |
200 | const struct ofp_header *); | |
254750ce | 201 | static void delete_flow__(struct rule *, struct ofopgroup *); |
7ee20df1 | 202 | static bool handle_openflow(struct ofconn *, struct ofpbuf *); |
90bf1e07 BP |
203 | static enum ofperr handle_flow_mod__(struct ofproto *, struct ofconn *, |
204 | const struct ofputil_flow_mod *, | |
d0918789 | 205 | const struct ofp_header *); |
f29152ca | 206 | |
d0918789 BP |
207 | /* ofproto. */ |
208 | static uint64_t pick_datapath_id(const struct ofproto *); | |
209 | static uint64_t pick_fallback_dpid(void); | |
210 | static void ofproto_destroy__(struct ofproto *); | |
ada3428f | 211 | static void update_mtu(struct ofproto *, struct ofport *); |
f29152ca | 212 | |
d0918789 | 213 | /* unixctl. */ |
abe529af | 214 | static void ofproto_unixctl_init(void); |
f29152ca | 215 | |
abe529af BP |
216 | /* All registered ofproto classes, in probe order. */ |
217 | static const struct ofproto_class **ofproto_classes; | |
218 | static size_t n_ofproto_classes; | |
219 | static size_t allocated_ofproto_classes; | |
7aa697dd | 220 | |
f797957a | 221 | /* Map from datapath name to struct ofproto, for use by unixctl commands. */ |
abe529af | 222 | static struct hmap all_ofprotos = HMAP_INITIALIZER(&all_ofprotos); |
ebe482fd | 223 | |
abe529af | 224 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); |
f29152ca | 225 | |
abe529af BP |
226 | static void |
227 | ofproto_initialize(void) | |
228 | { | |
229 | static bool inited; | |
f29152ca | 230 | |
abe529af BP |
231 | if (!inited) { |
232 | inited = true; | |
233 | ofproto_class_register(&ofproto_dpif_class); | |
234 | } | |
235 | } | |
f29152ca | 236 | |
abe529af BP |
237 | /* 'type' should be a normalized datapath type, as returned by |
238 | * ofproto_normalize_type(). Returns the corresponding ofproto_class | |
239 | * structure, or a null pointer if there is none registered for 'type'. */ | |
240 | static const struct ofproto_class * | |
241 | ofproto_class_find__(const char *type) | |
242 | { | |
243 | size_t i; | |
f29152ca | 244 | |
abe529af BP |
245 | ofproto_initialize(); |
246 | for (i = 0; i < n_ofproto_classes; i++) { | |
247 | const struct ofproto_class *class = ofproto_classes[i]; | |
248 | struct sset types; | |
249 | bool found; | |
064af421 | 250 | |
abe529af BP |
251 | sset_init(&types); |
252 | class->enumerate_types(&types); | |
253 | found = sset_contains(&types, type); | |
254 | sset_destroy(&types); | |
bcf84111 | 255 | |
abe529af BP |
256 | if (found) { |
257 | return class; | |
258 | } | |
259 | } | |
260 | VLOG_WARN("unknown datapath type %s", type); | |
261 | return NULL; | |
262 | } | |
064af421 | 263 | |
abe529af BP |
264 | /* Registers a new ofproto class. After successful registration, new ofprotos |
265 | * of that type can be created using ofproto_create(). */ | |
266 | int | |
267 | ofproto_class_register(const struct ofproto_class *new_class) | |
268 | { | |
269 | size_t i; | |
7aa697dd | 270 | |
abe529af BP |
271 | for (i = 0; i < n_ofproto_classes; i++) { |
272 | if (ofproto_classes[i] == new_class) { | |
273 | return EEXIST; | |
274 | } | |
275 | } | |
064af421 | 276 | |
abe529af BP |
277 | if (n_ofproto_classes >= allocated_ofproto_classes) { |
278 | ofproto_classes = x2nrealloc(ofproto_classes, | |
279 | &allocated_ofproto_classes, | |
280 | sizeof *ofproto_classes); | |
281 | } | |
282 | ofproto_classes[n_ofproto_classes++] = new_class; | |
283 | return 0; | |
284 | } | |
064af421 | 285 | |
abe529af BP |
286 | /* Unregisters a datapath provider. 'type' must have been previously |
287 | * registered and not currently be in use by any ofprotos. After | |
288 | * unregistration new datapaths of that type cannot be opened using | |
289 | * ofproto_create(). */ | |
290 | int | |
291 | ofproto_class_unregister(const struct ofproto_class *class) | |
292 | { | |
293 | size_t i; | |
76ce9432 | 294 | |
abe529af BP |
295 | for (i = 0; i < n_ofproto_classes; i++) { |
296 | if (ofproto_classes[i] == class) { | |
297 | for (i++; i < n_ofproto_classes; i++) { | |
298 | ofproto_classes[i - 1] = ofproto_classes[i]; | |
299 | } | |
300 | n_ofproto_classes--; | |
301 | return 0; | |
302 | } | |
303 | } | |
304 | VLOG_WARN("attempted to unregister an ofproto class that is not " | |
305 | "registered"); | |
306 | return EAFNOSUPPORT; | |
307 | } | |
4a4cdb3b | 308 | |
f79e673f BP |
309 | /* Clears 'types' and enumerates all registered ofproto types into it. The |
310 | * caller must first initialize the sset. */ | |
311 | void | |
312 | ofproto_enumerate_types(struct sset *types) | |
313 | { | |
abe529af | 314 | size_t i; |
064af421 | 315 | |
abe529af BP |
316 | ofproto_initialize(); |
317 | for (i = 0; i < n_ofproto_classes; i++) { | |
318 | ofproto_classes[i]->enumerate_types(types); | |
319 | } | |
f79e673f | 320 | } |
064af421 | 321 | |
f79e673f BP |
322 | /* Returns the fully spelled out name for the given ofproto 'type'. |
323 | * | |
324 | * Normalized type string can be compared with strcmp(). Unnormalized type | |
325 | * string might be the same even if they have different spellings. */ | |
326 | const char * | |
327 | ofproto_normalize_type(const char *type) | |
328 | { | |
abe529af | 329 | return type && type[0] ? type : "system"; |
f79e673f | 330 | } |
064af421 | 331 | |
f79e673f BP |
332 | /* Clears 'names' and enumerates the names of all known created ofprotos with |
333 | * the given 'type'. The caller must first initialize the sset. Returns 0 if | |
334 | * successful, otherwise a positive errno value. | |
335 | * | |
336 | * Some kinds of datapaths might not be practically enumerable. This is not | |
337 | * considered an error. */ | |
338 | int | |
339 | ofproto_enumerate_names(const char *type, struct sset *names) | |
340 | { | |
abe529af BP |
341 | const struct ofproto_class *class = ofproto_class_find__(type); |
342 | return class ? class->enumerate_names(type, names) : EAFNOSUPPORT; | |
343 | } | |
7aa697dd | 344 | |
064af421 | 345 | int |
abe529af | 346 | ofproto_create(const char *datapath_name, const char *datapath_type, |
064af421 BP |
347 | struct ofproto **ofprotop) |
348 | { | |
abe529af BP |
349 | const struct ofproto_class *class; |
350 | struct ofproto *ofproto; | |
064af421 BP |
351 | int error; |
352 | ||
353 | *ofprotop = NULL; | |
354 | ||
abe529af | 355 | ofproto_initialize(); |
7aa697dd BP |
356 | ofproto_unixctl_init(); |
357 | ||
abe529af BP |
358 | datapath_type = ofproto_normalize_type(datapath_type); |
359 | class = ofproto_class_find__(datapath_type); | |
360 | if (!class) { | |
361 | VLOG_WARN("could not create datapath %s of unknown type %s", | |
362 | datapath_name, datapath_type); | |
363 | return EAFNOSUPPORT; | |
064af421 BP |
364 | } |
365 | ||
abe529af BP |
366 | ofproto = class->alloc(); |
367 | if (!ofproto) { | |
368 | VLOG_ERR("failed to allocate datapath %s of type %s", | |
369 | datapath_name, datapath_type); | |
370 | return ENOMEM; | |
371 | } | |
372 | ||
373 | /* Initialize. */ | |
374 | memset(ofproto, 0, sizeof *ofproto); | |
375 | ofproto->ofproto_class = class; | |
376 | ofproto->name = xstrdup(datapath_name); | |
377 | ofproto->type = xstrdup(datapath_type); | |
378 | hmap_insert(&all_ofprotos, &ofproto->hmap_node, | |
379 | hash_string(ofproto->name, 0)); | |
380 | ofproto->datapath_id = 0; | |
084f5290 SH |
381 | ofproto_set_flow_eviction_threshold(ofproto, |
382 | OFPROTO_FLOW_EVICTON_THRESHOLD_DEFAULT); | |
8402c74b | 383 | ofproto->forward_bpdu = false; |
abe529af BP |
384 | ofproto->fallback_dpid = pick_fallback_dpid(); |
385 | ofproto->mfr_desc = xstrdup(DEFAULT_MFR_DESC); | |
386 | ofproto->hw_desc = xstrdup(DEFAULT_HW_DESC); | |
387 | ofproto->sw_desc = xstrdup(DEFAULT_SW_DESC); | |
388 | ofproto->serial_desc = xstrdup(DEFAULT_SERIAL_DESC); | |
389 | ofproto->dp_desc = xstrdup(DEFAULT_DP_DESC); | |
7257b535 | 390 | ofproto->frag_handling = OFPC_FRAG_NORMAL; |
abe529af BP |
391 | hmap_init(&ofproto->ports); |
392 | shash_init(&ofproto->port_by_name); | |
91858960 | 393 | ofproto->max_ports = OFPP_MAX; |
6c1491fb BP |
394 | ofproto->tables = NULL; |
395 | ofproto->n_tables = 0; | |
abe529af | 396 | ofproto->connmgr = connmgr_create(ofproto, datapath_name, datapath_name); |
7ee20df1 BP |
397 | ofproto->state = S_OPENFLOW; |
398 | list_init(&ofproto->pending); | |
dd5616b3 | 399 | ofproto->n_pending = 0; |
7ee20df1 | 400 | hmap_init(&ofproto->deletions); |
a5b8d268 BP |
401 | ofproto->n_add = ofproto->n_delete = ofproto->n_modify = 0; |
402 | ofproto->first_op = ofproto->last_op = LLONG_MIN; | |
403 | ofproto->next_op_report = LLONG_MAX; | |
404 | ofproto->op_backoff = LLONG_MIN; | |
52a90c29 BP |
405 | ofproto->vlan_bitmap = NULL; |
406 | ofproto->vlans_changed = false; | |
ada3428f | 407 | ofproto->min_mtu = INT_MAX; |
abe529af | 408 | |
0f5f95a9 | 409 | error = ofproto->ofproto_class->construct(ofproto); |
19a87e36 | 410 | if (error) { |
abe529af BP |
411 | VLOG_ERR("failed to open datapath %s: %s", |
412 | datapath_name, strerror(error)); | |
413 | ofproto_destroy__(ofproto); | |
19a87e36 BP |
414 | return error; |
415 | } | |
073e2a6f | 416 | |
0f5f95a9 | 417 | assert(ofproto->n_tables); |
19a87e36 | 418 | |
abe529af | 419 | ofproto->datapath_id = pick_datapath_id(ofproto); |
abe529af | 420 | init_ports(ofproto); |
7aa697dd | 421 | |
abe529af | 422 | *ofprotop = ofproto; |
064af421 BP |
423 | return 0; |
424 | } | |
425 | ||
91858960 BP |
426 | /* Must be called (only) by an ofproto implementation in its constructor |
427 | * function. See the large comment on 'construct' in struct ofproto_class for | |
428 | * details. */ | |
0f5f95a9 BP |
429 | void |
430 | ofproto_init_tables(struct ofproto *ofproto, int n_tables) | |
431 | { | |
432 | struct oftable *table; | |
433 | ||
434 | assert(!ofproto->n_tables); | |
435 | assert(n_tables >= 1 && n_tables <= 255); | |
436 | ||
437 | ofproto->n_tables = n_tables; | |
438 | ofproto->tables = xmalloc(n_tables * sizeof *ofproto->tables); | |
439 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { | |
440 | oftable_init(table); | |
441 | } | |
442 | } | |
443 | ||
91858960 BP |
444 | /* To be optionally called (only) by an ofproto implementation in its |
445 | * constructor function. See the large comment on 'construct' in struct | |
446 | * ofproto_class for details. | |
447 | * | |
448 | * Sets the maximum number of ports to 'max_ports'. The ofproto generic layer | |
449 | * will then ensure that actions passed into the ofproto implementation will | |
450 | * not refer to OpenFlow ports numbered 'max_ports' or higher. If this | |
451 | * function is not called, there will be no such restriction. | |
452 | * | |
453 | * Reserved ports numbered OFPP_MAX and higher are special and not subject to | |
454 | * the 'max_ports' restriction. */ | |
455 | void | |
456 | ofproto_init_max_ports(struct ofproto *ofproto, uint16_t max_ports) | |
457 | { | |
458 | assert(max_ports <= OFPP_MAX); | |
459 | ofproto->max_ports = max_ports; | |
460 | } | |
461 | ||
e825ace2 BP |
462 | uint64_t |
463 | ofproto_get_datapath_id(const struct ofproto *ofproto) | |
464 | { | |
465 | return ofproto->datapath_id; | |
466 | } | |
467 | ||
064af421 BP |
468 | void |
469 | ofproto_set_datapath_id(struct ofproto *p, uint64_t datapath_id) | |
470 | { | |
471 | uint64_t old_dpid = p->datapath_id; | |
fa60c019 | 472 | p->datapath_id = datapath_id ? datapath_id : pick_datapath_id(p); |
064af421 | 473 | if (p->datapath_id != old_dpid) { |
76ce9432 BP |
474 | /* Force all active connections to reconnect, since there is no way to |
475 | * notify a controller that the datapath ID has changed. */ | |
fa05809b | 476 | ofproto_reconnect_controllers(p); |
064af421 BP |
477 | } |
478 | } | |
479 | ||
76ce9432 BP |
480 | void |
481 | ofproto_set_controllers(struct ofproto *p, | |
482 | const struct ofproto_controller *controllers, | |
483 | size_t n_controllers) | |
484 | { | |
19a87e36 | 485 | connmgr_set_controllers(p->connmgr, controllers, n_controllers); |
064af421 BP |
486 | } |
487 | ||
31681a5d JP |
488 | void |
489 | ofproto_set_fail_mode(struct ofproto *p, enum ofproto_fail_mode fail_mode) | |
490 | { | |
19a87e36 | 491 | connmgr_set_fail_mode(p->connmgr, fail_mode); |
31681a5d JP |
492 | } |
493 | ||
fa05809b BP |
494 | /* Drops the connections between 'ofproto' and all of its controllers, forcing |
495 | * them to reconnect. */ | |
496 | void | |
497 | ofproto_reconnect_controllers(struct ofproto *ofproto) | |
498 | { | |
19a87e36 | 499 | connmgr_reconnect(ofproto->connmgr); |
917e50e1 BP |
500 | } |
501 | ||
502 | /* Sets the 'n' TCP port addresses in 'extras' as ones to which 'ofproto''s | |
503 | * in-band control should guarantee access, in the same way that in-band | |
504 | * control guarantees access to OpenFlow controllers. */ | |
505 | void | |
506 | ofproto_set_extra_in_band_remotes(struct ofproto *ofproto, | |
507 | const struct sockaddr_in *extras, size_t n) | |
508 | { | |
19a87e36 | 509 | connmgr_set_extra_in_band_remotes(ofproto->connmgr, extras, n); |
917e50e1 BP |
510 | } |
511 | ||
b1da6250 BP |
512 | /* Sets the OpenFlow queue used by flows set up by in-band control on |
513 | * 'ofproto' to 'queue_id'. If 'queue_id' is negative, then in-band control | |
514 | * flows will use the default queue. */ | |
515 | void | |
516 | ofproto_set_in_band_queue(struct ofproto *ofproto, int queue_id) | |
517 | { | |
19a87e36 | 518 | connmgr_set_in_band_queue(ofproto->connmgr, queue_id); |
b1da6250 BP |
519 | } |
520 | ||
084f5290 SH |
521 | /* Sets the number of flows at which eviction from the kernel flow table |
522 | * will occur. */ | |
523 | void | |
524 | ofproto_set_flow_eviction_threshold(struct ofproto *ofproto, unsigned threshold) | |
525 | { | |
526 | if (threshold < OFPROTO_FLOW_EVICTION_THRESHOLD_MIN) { | |
527 | ofproto->flow_eviction_threshold = OFPROTO_FLOW_EVICTION_THRESHOLD_MIN; | |
528 | } else { | |
529 | ofproto->flow_eviction_threshold = threshold; | |
530 | } | |
531 | } | |
532 | ||
b53055f4 | 533 | /* If forward_bpdu is true, the NORMAL action will forward frames with |
8402c74b SS |
534 | * reserved (e.g. STP) destination Ethernet addresses. if forward_bpdu is false, |
535 | * the NORMAL action will drop these frames. */ | |
536 | void | |
537 | ofproto_set_forward_bpdu(struct ofproto *ofproto, bool forward_bpdu) | |
538 | { | |
539 | bool old_val = ofproto->forward_bpdu; | |
540 | ofproto->forward_bpdu = forward_bpdu; | |
541 | if (old_val != ofproto->forward_bpdu) { | |
542 | if (ofproto->ofproto_class->forward_bpdu_changed) { | |
543 | ofproto->ofproto_class->forward_bpdu_changed(ofproto); | |
544 | } | |
b53055f4 | 545 | } |
8402c74b SS |
546 | } |
547 | ||
e764773c BP |
548 | /* Sets the MAC aging timeout for the OFPP_NORMAL action on 'ofproto' to |
549 | * 'idle_time', in seconds. */ | |
550 | void | |
551 | ofproto_set_mac_idle_time(struct ofproto *ofproto, unsigned idle_time) | |
552 | { | |
553 | if (ofproto->ofproto_class->set_mac_idle_time) { | |
554 | ofproto->ofproto_class->set_mac_idle_time(ofproto, idle_time); | |
555 | } | |
556 | } | |
557 | ||
064af421 BP |
558 | void |
559 | ofproto_set_desc(struct ofproto *p, | |
5a719c38 JP |
560 | const char *mfr_desc, const char *hw_desc, |
561 | const char *sw_desc, const char *serial_desc, | |
8abc4ed7 | 562 | const char *dp_desc) |
064af421 | 563 | { |
5a719c38 JP |
564 | struct ofp_desc_stats *ods; |
565 | ||
566 | if (mfr_desc) { | |
567 | if (strlen(mfr_desc) >= sizeof ods->mfr_desc) { | |
fbfa2911 BP |
568 | VLOG_WARN("%s: truncating mfr_desc, must be less than %zu bytes", |
569 | p->name, sizeof ods->mfr_desc); | |
5a719c38 JP |
570 | } |
571 | free(p->mfr_desc); | |
572 | p->mfr_desc = xstrdup(mfr_desc); | |
064af421 | 573 | } |
5a719c38 JP |
574 | if (hw_desc) { |
575 | if (strlen(hw_desc) >= sizeof ods->hw_desc) { | |
fbfa2911 BP |
576 | VLOG_WARN("%s: truncating hw_desc, must be less than %zu bytes", |
577 | p->name, sizeof ods->hw_desc); | |
5a719c38 JP |
578 | } |
579 | free(p->hw_desc); | |
580 | p->hw_desc = xstrdup(hw_desc); | |
064af421 | 581 | } |
5a719c38 JP |
582 | if (sw_desc) { |
583 | if (strlen(sw_desc) >= sizeof ods->sw_desc) { | |
fbfa2911 BP |
584 | VLOG_WARN("%s: truncating sw_desc, must be less than %zu bytes", |
585 | p->name, sizeof ods->sw_desc); | |
5a719c38 JP |
586 | } |
587 | free(p->sw_desc); | |
588 | p->sw_desc = xstrdup(sw_desc); | |
589 | } | |
590 | if (serial_desc) { | |
591 | if (strlen(serial_desc) >= sizeof ods->serial_num) { | |
fbfa2911 BP |
592 | VLOG_WARN("%s: truncating serial_desc, must be less than %zu " |
593 | "bytes", p->name, sizeof ods->serial_num); | |
5a719c38 JP |
594 | } |
595 | free(p->serial_desc); | |
596 | p->serial_desc = xstrdup(serial_desc); | |
064af421 | 597 | } |
8abc4ed7 | 598 | if (dp_desc) { |
5a719c38 | 599 | if (strlen(dp_desc) >= sizeof ods->dp_desc) { |
fbfa2911 BP |
600 | VLOG_WARN("%s: truncating dp_desc, must be less than %zu bytes", |
601 | p->name, sizeof ods->dp_desc); | |
5a719c38 | 602 | } |
8abc4ed7 JP |
603 | free(p->dp_desc); |
604 | p->dp_desc = xstrdup(dp_desc); | |
605 | } | |
064af421 BP |
606 | } |
607 | ||
064af421 | 608 | int |
81e2083f | 609 | ofproto_set_snoops(struct ofproto *ofproto, const struct sset *snoops) |
064af421 | 610 | { |
19a87e36 | 611 | return connmgr_set_snoops(ofproto->connmgr, snoops); |
064af421 BP |
612 | } |
613 | ||
614 | int | |
0193b2af JG |
615 | ofproto_set_netflow(struct ofproto *ofproto, |
616 | const struct netflow_options *nf_options) | |
064af421 | 617 | { |
abe529af BP |
618 | if (nf_options && sset_is_empty(&nf_options->collectors)) { |
619 | nf_options = NULL; | |
620 | } | |
621 | ||
622 | if (ofproto->ofproto_class->set_netflow) { | |
623 | return ofproto->ofproto_class->set_netflow(ofproto, nf_options); | |
064af421 | 624 | } else { |
abe529af | 625 | return nf_options ? EOPNOTSUPP : 0; |
064af421 BP |
626 | } |
627 | } | |
628 | ||
abe529af | 629 | int |
72b06300 BP |
630 | ofproto_set_sflow(struct ofproto *ofproto, |
631 | const struct ofproto_sflow_options *oso) | |
632 | { | |
abe529af BP |
633 | if (oso && sset_is_empty(&oso->targets)) { |
634 | oso = NULL; | |
635 | } | |
72b06300 | 636 | |
abe529af BP |
637 | if (ofproto->ofproto_class->set_sflow) { |
638 | return ofproto->ofproto_class->set_sflow(ofproto, oso); | |
72b06300 | 639 | } else { |
abe529af | 640 | return oso ? EOPNOTSUPP : 0; |
72b06300 BP |
641 | } |
642 | } | |
e7934396 | 643 | \f |
21f7563c JP |
644 | /* Spanning Tree Protocol (STP) configuration. */ |
645 | ||
646 | /* Configures STP on 'ofproto' using the settings defined in 's'. If | |
647 | * 's' is NULL, disables STP. | |
648 | * | |
649 | * Returns 0 if successful, otherwise a positive errno value. */ | |
650 | int | |
651 | ofproto_set_stp(struct ofproto *ofproto, | |
652 | const struct ofproto_stp_settings *s) | |
653 | { | |
654 | return (ofproto->ofproto_class->set_stp | |
655 | ? ofproto->ofproto_class->set_stp(ofproto, s) | |
656 | : EOPNOTSUPP); | |
657 | } | |
658 | ||
659 | /* Retrieves STP status of 'ofproto' and stores it in 's'. If the | |
660 | * 'enabled' member of 's' is false, then the other members are not | |
661 | * meaningful. | |
662 | * | |
663 | * Returns 0 if successful, otherwise a positive errno value. */ | |
664 | int | |
665 | ofproto_get_stp_status(struct ofproto *ofproto, | |
666 | struct ofproto_stp_status *s) | |
667 | { | |
668 | return (ofproto->ofproto_class->get_stp_status | |
669 | ? ofproto->ofproto_class->get_stp_status(ofproto, s) | |
670 | : EOPNOTSUPP); | |
671 | } | |
672 | ||
673 | /* Configures STP on 'ofp_port' of 'ofproto' using the settings defined | |
674 | * in 's'. The caller is responsible for assigning STP port numbers | |
675 | * (using the 'port_num' member in the range of 1 through 255, inclusive) | |
676 | * and ensuring there are no duplicates. If the 's' is NULL, then STP | |
677 | * is disabled on the port. | |
678 | * | |
679 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
680 | int | |
681 | ofproto_port_set_stp(struct ofproto *ofproto, uint16_t ofp_port, | |
682 | const struct ofproto_port_stp_settings *s) | |
683 | { | |
684 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
685 | if (!ofport) { | |
686 | VLOG_WARN("%s: cannot configure STP on nonexistent port %"PRIu16, | |
687 | ofproto->name, ofp_port); | |
688 | return ENODEV; | |
689 | } | |
690 | ||
691 | return (ofproto->ofproto_class->set_stp_port | |
692 | ? ofproto->ofproto_class->set_stp_port(ofport, s) | |
693 | : EOPNOTSUPP); | |
694 | } | |
695 | ||
696 | /* Retrieves STP port status of 'ofp_port' on 'ofproto' and stores it in | |
697 | * 's'. If the 'enabled' member in 's' is false, then the other members | |
698 | * are not meaningful. | |
699 | * | |
700 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
701 | int | |
702 | ofproto_port_get_stp_status(struct ofproto *ofproto, uint16_t ofp_port, | |
703 | struct ofproto_port_stp_status *s) | |
704 | { | |
705 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
706 | if (!ofport) { | |
b0a5c43b JP |
707 | VLOG_WARN_RL(&rl, "%s: cannot get STP status on nonexistent " |
708 | "port %"PRIu16, ofproto->name, ofp_port); | |
21f7563c JP |
709 | return ENODEV; |
710 | } | |
711 | ||
712 | return (ofproto->ofproto_class->get_stp_port_status | |
713 | ? ofproto->ofproto_class->get_stp_port_status(ofport, s) | |
714 | : EOPNOTSUPP); | |
715 | } | |
716 | \f | |
8b36f51e EJ |
717 | /* Queue DSCP configuration. */ |
718 | ||
719 | /* Registers meta-data associated with the 'n_qdscp' Qualities of Service | |
720 | * 'queues' attached to 'ofport'. This data is not intended to be sufficient | |
721 | * to implement QoS. Instead, it is used to implement features which require | |
722 | * knowledge of what queues exist on a port, and some basic information about | |
723 | * them. | |
724 | * | |
725 | * Returns 0 if successful, otherwise a positive errno value. */ | |
726 | int | |
727 | ofproto_port_set_queues(struct ofproto *ofproto, uint16_t ofp_port, | |
728 | const struct ofproto_port_queue *queues, | |
729 | size_t n_queues) | |
730 | { | |
731 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
732 | ||
733 | if (!ofport) { | |
734 | VLOG_WARN("%s: cannot set queues on nonexistent port %"PRIu16, | |
735 | ofproto->name, ofp_port); | |
736 | return ENODEV; | |
737 | } | |
738 | ||
739 | return (ofproto->ofproto_class->set_queues | |
740 | ? ofproto->ofproto_class->set_queues(ofport, queues, n_queues) | |
741 | : EOPNOTSUPP); | |
742 | } | |
743 | \f | |
e7934396 BP |
744 | /* Connectivity Fault Management configuration. */ |
745 | ||
892815f5 | 746 | /* Clears the CFM configuration from 'ofp_port' on 'ofproto'. */ |
e7934396 | 747 | void |
892815f5 | 748 | ofproto_port_clear_cfm(struct ofproto *ofproto, uint16_t ofp_port) |
e7934396 | 749 | { |
abe529af BP |
750 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
751 | if (ofport && ofproto->ofproto_class->set_cfm) { | |
a5610457 | 752 | ofproto->ofproto_class->set_cfm(ofport, NULL); |
e7934396 BP |
753 | } |
754 | } | |
72b06300 | 755 | |
892815f5 | 756 | /* Configures connectivity fault management on 'ofp_port' in 'ofproto'. Takes |
93b8df38 EJ |
757 | * basic configuration from the configuration members in 'cfm', and the remote |
758 | * maintenance point ID from remote_mpid. Ignores the statistics members of | |
759 | * 'cfm'. | |
e7934396 | 760 | * |
892815f5 | 761 | * This function has no effect if 'ofproto' does not have a port 'ofp_port'. */ |
e7934396 | 762 | void |
892815f5 | 763 | ofproto_port_set_cfm(struct ofproto *ofproto, uint16_t ofp_port, |
a5610457 | 764 | const struct cfm_settings *s) |
e7934396 BP |
765 | { |
766 | struct ofport *ofport; | |
abe529af | 767 | int error; |
e7934396 | 768 | |
abe529af | 769 | ofport = ofproto_get_port(ofproto, ofp_port); |
e7934396 | 770 | if (!ofport) { |
892815f5 BP |
771 | VLOG_WARN("%s: cannot configure CFM on nonexistent port %"PRIu16, |
772 | ofproto->name, ofp_port); | |
e7934396 BP |
773 | return; |
774 | } | |
775 | ||
93b8df38 EJ |
776 | /* XXX: For configuration simplicity, we only support one remote_mpid |
777 | * outside of the CFM module. It's not clear if this is the correct long | |
778 | * term solution or not. */ | |
abe529af | 779 | error = (ofproto->ofproto_class->set_cfm |
a5610457 | 780 | ? ofproto->ofproto_class->set_cfm(ofport, s) |
abe529af BP |
781 | : EOPNOTSUPP); |
782 | if (error) { | |
783 | VLOG_WARN("%s: CFM configuration on port %"PRIu16" (%s) failed (%s)", | |
784 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), | |
785 | strerror(error)); | |
e7934396 | 786 | } |
e7934396 | 787 | } |
e7934396 | 788 | |
fa066f01 BP |
789 | /* Checks the status of LACP negotiation for 'ofp_port' within ofproto. |
790 | * Returns 1 if LACP partner information for 'ofp_port' is up-to-date, | |
791 | * 0 if LACP partner information is not current (generally indicating a | |
792 | * connectivity problem), or -1 if LACP is not enabled on 'ofp_port'. */ | |
793 | int | |
794 | ofproto_port_is_lacp_current(struct ofproto *ofproto, uint16_t ofp_port) | |
795 | { | |
abe529af BP |
796 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
797 | return (ofport && ofproto->ofproto_class->port_is_lacp_current | |
798 | ? ofproto->ofproto_class->port_is_lacp_current(ofport) | |
fa066f01 | 799 | : -1); |
e7934396 | 800 | } |
e7934396 | 801 | \f |
fa066f01 | 802 | /* Bundles. */ |
e7934396 | 803 | |
abe529af BP |
804 | /* Registers a "bundle" associated with client data pointer 'aux' in 'ofproto'. |
805 | * A bundle is the same concept as a Port in OVSDB, that is, it consists of one | |
806 | * or more "slave" devices (Interfaces, in OVSDB) along with a VLAN | |
807 | * configuration plus, if there is more than one slave, a bonding | |
808 | * configuration. | |
809 | * | |
810 | * If 'aux' is already registered then this function updates its configuration | |
811 | * to 's'. Otherwise, this function registers a new bundle. | |
812 | * | |
813 | * Bundles only affect the NXAST_AUTOPATH action and output to the OFPP_NORMAL | |
814 | * port. */ | |
815 | int | |
816 | ofproto_bundle_register(struct ofproto *ofproto, void *aux, | |
817 | const struct ofproto_bundle_settings *s) | |
fa066f01 | 818 | { |
abe529af BP |
819 | return (ofproto->ofproto_class->bundle_set |
820 | ? ofproto->ofproto_class->bundle_set(ofproto, aux, s) | |
821 | : EOPNOTSUPP); | |
fa066f01 BP |
822 | } |
823 | ||
abe529af BP |
824 | /* Unregisters the bundle registered on 'ofproto' with auxiliary data 'aux'. |
825 | * If no such bundle has been registered, this has no effect. */ | |
826 | int | |
827 | ofproto_bundle_unregister(struct ofproto *ofproto, void *aux) | |
e7934396 | 828 | { |
abe529af | 829 | return ofproto_bundle_register(ofproto, aux, NULL); |
e7934396 | 830 | } |
fa066f01 | 831 | |
e7934396 | 832 | \f |
abe529af BP |
833 | /* Registers a mirror associated with client data pointer 'aux' in 'ofproto'. |
834 | * If 'aux' is already registered then this function updates its configuration | |
c06bba01 | 835 | * to 's'. Otherwise, this function registers a new mirror. */ |
abe529af BP |
836 | int |
837 | ofproto_mirror_register(struct ofproto *ofproto, void *aux, | |
838 | const struct ofproto_mirror_settings *s) | |
064af421 | 839 | { |
abe529af BP |
840 | return (ofproto->ofproto_class->mirror_set |
841 | ? ofproto->ofproto_class->mirror_set(ofproto, aux, s) | |
842 | : EOPNOTSUPP); | |
064af421 BP |
843 | } |
844 | ||
abe529af BP |
845 | /* Unregisters the mirror registered on 'ofproto' with auxiliary data 'aux'. |
846 | * If no mirror has been registered, this has no effect. */ | |
847 | int | |
848 | ofproto_mirror_unregister(struct ofproto *ofproto, void *aux) | |
064af421 | 849 | { |
abe529af | 850 | return ofproto_mirror_register(ofproto, aux, NULL); |
064af421 BP |
851 | } |
852 | ||
9d24de3b JP |
853 | /* Retrieves statistics from mirror associated with client data pointer |
854 | * 'aux' in 'ofproto'. Stores packet and byte counts in 'packets' and | |
855 | * 'bytes', respectively. If a particular counters is not supported, | |
856 | * the appropriate argument is set to UINT64_MAX. */ | |
857 | int | |
858 | ofproto_mirror_get_stats(struct ofproto *ofproto, void *aux, | |
859 | uint64_t *packets, uint64_t *bytes) | |
860 | { | |
861 | if (!ofproto->ofproto_class->mirror_get_stats) { | |
862 | *packets = *bytes = UINT64_MAX; | |
863 | return EOPNOTSUPP; | |
864 | } | |
865 | ||
866 | return ofproto->ofproto_class->mirror_get_stats(ofproto, aux, | |
867 | packets, bytes); | |
868 | } | |
869 | ||
abe529af BP |
870 | /* Configures the VLANs whose bits are set to 1 in 'flood_vlans' as VLANs on |
871 | * which all packets are flooded, instead of using MAC learning. If | |
872 | * 'flood_vlans' is NULL, then MAC learning applies to all VLANs. | |
873 | * | |
874 | * Flood VLANs affect only the treatment of packets output to the OFPP_NORMAL | |
875 | * port. */ | |
876 | int | |
877 | ofproto_set_flood_vlans(struct ofproto *ofproto, unsigned long *flood_vlans) | |
abdfe474 | 878 | { |
abe529af BP |
879 | return (ofproto->ofproto_class->set_flood_vlans |
880 | ? ofproto->ofproto_class->set_flood_vlans(ofproto, flood_vlans) | |
881 | : EOPNOTSUPP); | |
abdfe474 JP |
882 | } |
883 | ||
abe529af BP |
884 | /* Returns true if 'aux' is a registered bundle that is currently in use as the |
885 | * output for a mirror. */ | |
886 | bool | |
b4affc74 | 887 | ofproto_is_mirror_output_bundle(const struct ofproto *ofproto, void *aux) |
abe529af BP |
888 | { |
889 | return (ofproto->ofproto_class->is_mirror_output_bundle | |
890 | ? ofproto->ofproto_class->is_mirror_output_bundle(ofproto, aux) | |
891 | : false); | |
892 | } | |
893 | \f | |
254750ce BP |
894 | /* Configuration of OpenFlow tables. */ |
895 | ||
896 | /* Returns the number of OpenFlow tables in 'ofproto'. */ | |
897 | int | |
898 | ofproto_get_n_tables(const struct ofproto *ofproto) | |
899 | { | |
900 | return ofproto->n_tables; | |
901 | } | |
902 | ||
903 | /* Configures the OpenFlow table in 'ofproto' with id 'table_id' with the | |
904 | * settings from 's'. 'table_id' must be in the range 0 through the number of | |
905 | * OpenFlow tables in 'ofproto' minus 1, inclusive. | |
906 | * | |
907 | * For read-only tables, only the name may be configured. */ | |
908 | void | |
909 | ofproto_configure_table(struct ofproto *ofproto, int table_id, | |
910 | const struct ofproto_table_settings *s) | |
911 | { | |
912 | struct oftable *table; | |
913 | ||
914 | assert(table_id >= 0 && table_id < ofproto->n_tables); | |
915 | table = &ofproto->tables[table_id]; | |
916 | ||
917 | oftable_set_name(table, s->name); | |
918 | ||
919 | if (table->flags & OFTABLE_READONLY) { | |
920 | return; | |
921 | } | |
922 | ||
923 | if (s->groups) { | |
924 | oftable_enable_eviction(table, s->groups, s->n_groups); | |
925 | } else { | |
926 | oftable_disable_eviction(table); | |
927 | } | |
928 | ||
929 | table->max_flows = s->max_flows; | |
930 | if (classifier_count(&table->cls) > table->max_flows | |
931 | && table->eviction_fields) { | |
932 | /* 'table' contains more flows than allowed. We might not be able to | |
933 | * evict them right away because of the asynchronous nature of flow | |
934 | * table changes. Schedule eviction for later. */ | |
935 | switch (ofproto->state) { | |
936 | case S_OPENFLOW: | |
937 | ofproto->state = S_EVICT; | |
938 | break; | |
939 | case S_EVICT: | |
940 | case S_FLUSH: | |
941 | /* We're already deleting flows, nothing more to do. */ | |
942 | break; | |
943 | } | |
944 | } | |
945 | } | |
946 | \f | |
81e2083f BP |
947 | bool |
948 | ofproto_has_snoops(const struct ofproto *ofproto) | |
949 | { | |
950 | return connmgr_has_snoops(ofproto->connmgr); | |
951 | } | |
952 | ||
064af421 | 953 | void |
81e2083f | 954 | ofproto_get_snoops(const struct ofproto *ofproto, struct sset *snoops) |
064af421 | 955 | { |
19a87e36 | 956 | connmgr_get_snoops(ofproto->connmgr, snoops); |
064af421 BP |
957 | } |
958 | ||
7ee20df1 BP |
959 | static void |
960 | ofproto_flush__(struct ofproto *ofproto) | |
961 | { | |
7ee20df1 | 962 | struct ofopgroup *group; |
d0918789 | 963 | struct oftable *table; |
7ee20df1 BP |
964 | |
965 | if (ofproto->ofproto_class->flush) { | |
966 | ofproto->ofproto_class->flush(ofproto); | |
967 | } | |
968 | ||
7024dffe | 969 | group = ofopgroup_create_unattached(ofproto); |
b772ded8 | 970 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
7ee20df1 BP |
971 | struct rule *rule, *next_rule; |
972 | struct cls_cursor cursor; | |
973 | ||
5c67e4af BP |
974 | if (table->flags & OFTABLE_HIDDEN) { |
975 | continue; | |
976 | } | |
977 | ||
d0918789 | 978 | cls_cursor_init(&cursor, &table->cls, NULL); |
7ee20df1 BP |
979 | CLS_CURSOR_FOR_EACH_SAFE (rule, next_rule, cr, &cursor) { |
980 | if (!rule->pending) { | |
2b07c8b1 BP |
981 | ofoperation_create(group, rule, OFOPERATION_DELETE, |
982 | OFPRR_DELETE); | |
d0918789 | 983 | oftable_remove_rule(rule); |
7ee20df1 BP |
984 | ofproto->ofproto_class->rule_destruct(rule); |
985 | } | |
986 | } | |
987 | } | |
988 | ofopgroup_submit(group); | |
989 | } | |
990 | ||
abe529af BP |
991 | static void |
992 | ofproto_destroy__(struct ofproto *ofproto) | |
993 | { | |
d0918789 | 994 | struct oftable *table; |
6c1491fb | 995 | |
7ee20df1 | 996 | assert(list_is_empty(&ofproto->pending)); |
dd5616b3 | 997 | assert(!ofproto->n_pending); |
7ee20df1 | 998 | |
abe529af | 999 | connmgr_destroy(ofproto->connmgr); |
fa066f01 | 1000 | |
abe529af BP |
1001 | hmap_remove(&all_ofprotos, &ofproto->hmap_node); |
1002 | free(ofproto->name); | |
955a7127 | 1003 | free(ofproto->type); |
abe529af BP |
1004 | free(ofproto->mfr_desc); |
1005 | free(ofproto->hw_desc); | |
1006 | free(ofproto->sw_desc); | |
1007 | free(ofproto->serial_desc); | |
1008 | free(ofproto->dp_desc); | |
abe529af BP |
1009 | hmap_destroy(&ofproto->ports); |
1010 | shash_destroy(&ofproto->port_by_name); | |
6c1491fb | 1011 | |
b772ded8 | 1012 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
d0918789 | 1013 | oftable_destroy(table); |
6c1491fb BP |
1014 | } |
1015 | free(ofproto->tables); | |
fa066f01 | 1016 | |
7ee20df1 BP |
1017 | hmap_destroy(&ofproto->deletions); |
1018 | ||
52a90c29 BP |
1019 | free(ofproto->vlan_bitmap); |
1020 | ||
abe529af BP |
1021 | ofproto->ofproto_class->dealloc(ofproto); |
1022 | } | |
fa066f01 | 1023 | |
064af421 BP |
1024 | void |
1025 | ofproto_destroy(struct ofproto *p) | |
1026 | { | |
ca0f572c | 1027 | struct ofport *ofport, *next_ofport; |
064af421 BP |
1028 | |
1029 | if (!p) { | |
1030 | return; | |
1031 | } | |
1032 | ||
7ee20df1 | 1033 | ofproto_flush__(p); |
4e8e4213 | 1034 | HMAP_FOR_EACH_SAFE (ofport, next_ofport, hmap_node, &p->ports) { |
abe529af | 1035 | ofport_destroy(ofport); |
064af421 | 1036 | } |
064af421 | 1037 | |
abe529af BP |
1038 | p->ofproto_class->destruct(p); |
1039 | ofproto_destroy__(p); | |
064af421 BP |
1040 | } |
1041 | ||
abe529af BP |
1042 | /* Destroys the datapath with the respective 'name' and 'type'. With the Linux |
1043 | * kernel datapath, for example, this destroys the datapath in the kernel, and | |
1044 | * with the netdev-based datapath, it tears down the data structures that | |
1045 | * represent the datapath. | |
1046 | * | |
1047 | * The datapath should not be currently open as an ofproto. */ | |
064af421 | 1048 | int |
abe529af | 1049 | ofproto_delete(const char *name, const char *type) |
064af421 | 1050 | { |
abe529af BP |
1051 | const struct ofproto_class *class = ofproto_class_find__(type); |
1052 | return (!class ? EAFNOSUPPORT | |
1053 | : !class->del ? EACCES | |
1054 | : class->del(type, name)); | |
064af421 BP |
1055 | } |
1056 | ||
e9e28be3 BP |
1057 | static void |
1058 | process_port_change(struct ofproto *ofproto, int error, char *devname) | |
1059 | { | |
1060 | if (error == ENOBUFS) { | |
1061 | reinit_ports(ofproto); | |
1062 | } else if (!error) { | |
1063 | update_port(ofproto, devname); | |
1064 | free(devname); | |
1065 | } | |
1066 | } | |
1067 | ||
064af421 | 1068 | int |
abe529af | 1069 | ofproto_run(struct ofproto *p) |
064af421 | 1070 | { |
7436ed80 BP |
1071 | struct sset changed_netdevs; |
1072 | const char *changed_netdev; | |
031d8bff | 1073 | struct ofport *ofport; |
064af421 | 1074 | int error; |
064af421 | 1075 | |
abe529af | 1076 | error = p->ofproto_class->run(p); |
5fcc0d00 BP |
1077 | if (error && error != EAGAIN) { |
1078 | VLOG_ERR_RL(&rl, "%s: run failed (%s)", p->name, strerror(error)); | |
149f577a JG |
1079 | } |
1080 | ||
5bf0e941 | 1081 | if (p->ofproto_class->port_poll) { |
7436ed80 BP |
1082 | char *devname; |
1083 | ||
5bf0e941 BP |
1084 | while ((error = p->ofproto_class->port_poll(p, &devname)) != EAGAIN) { |
1085 | process_port_change(p, error, devname); | |
064af421 | 1086 | } |
e9e28be3 | 1087 | } |
031d8bff | 1088 | |
7436ed80 BP |
1089 | /* Update OpenFlow port status for any port whose netdev has changed. |
1090 | * | |
1091 | * Refreshing a given 'ofport' can cause an arbitrary ofport to be | |
1092 | * destroyed, so it's not safe to update ports directly from the | |
1093 | * HMAP_FOR_EACH loop, or even to use HMAP_FOR_EACH_SAFE. Instead, we | |
1094 | * need this two-phase approach. */ | |
1095 | sset_init(&changed_netdevs); | |
031d8bff EJ |
1096 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { |
1097 | unsigned int change_seq = netdev_change_seq(ofport->netdev); | |
1098 | if (ofport->change_seq != change_seq) { | |
1099 | ofport->change_seq = change_seq; | |
7436ed80 | 1100 | sset_add(&changed_netdevs, netdev_get_name(ofport->netdev)); |
031d8bff | 1101 | } |
064af421 | 1102 | } |
7436ed80 BP |
1103 | SSET_FOR_EACH (changed_netdev, &changed_netdevs) { |
1104 | update_port(p, changed_netdev); | |
1105 | } | |
1106 | sset_destroy(&changed_netdevs); | |
064af421 | 1107 | |
7ee20df1 BP |
1108 | switch (p->state) { |
1109 | case S_OPENFLOW: | |
1110 | connmgr_run(p->connmgr, handle_openflow); | |
1111 | break; | |
1112 | ||
254750ce BP |
1113 | case S_EVICT: |
1114 | connmgr_run(p->connmgr, NULL); | |
1115 | ofproto_evict(p); | |
1116 | if (list_is_empty(&p->pending) && hmap_is_empty(&p->deletions)) { | |
1117 | p->state = S_OPENFLOW; | |
1118 | } | |
1119 | break; | |
1120 | ||
7ee20df1 BP |
1121 | case S_FLUSH: |
1122 | connmgr_run(p->connmgr, NULL); | |
1123 | ofproto_flush__(p); | |
1124 | if (list_is_empty(&p->pending) && hmap_is_empty(&p->deletions)) { | |
1125 | connmgr_flushed(p->connmgr); | |
1126 | p->state = S_OPENFLOW; | |
1127 | } | |
1128 | break; | |
1129 | ||
1130 | default: | |
1131 | NOT_REACHED(); | |
1132 | } | |
064af421 | 1133 | |
a5b8d268 BP |
1134 | if (time_msec() >= p->next_op_report) { |
1135 | long long int ago = (time_msec() - p->first_op) / 1000; | |
1136 | long long int interval = (p->last_op - p->first_op) / 1000; | |
1137 | struct ds s; | |
1138 | ||
1139 | ds_init(&s); | |
1140 | ds_put_format(&s, "%d flow_mods ", | |
1141 | p->n_add + p->n_delete + p->n_modify); | |
1142 | if (interval == ago) { | |
1143 | ds_put_format(&s, "in the last %lld s", ago); | |
1144 | } else if (interval) { | |
1145 | ds_put_format(&s, "in the %lld s starting %lld s ago", | |
1146 | interval, ago); | |
1147 | } else { | |
1148 | ds_put_format(&s, "%lld s ago", ago); | |
1149 | } | |
1150 | ||
1151 | ds_put_cstr(&s, " ("); | |
1152 | if (p->n_add) { | |
1153 | ds_put_format(&s, "%d adds, ", p->n_add); | |
1154 | } | |
1155 | if (p->n_delete) { | |
1156 | ds_put_format(&s, "%d deletes, ", p->n_delete); | |
1157 | } | |
1158 | if (p->n_modify) { | |
1159 | ds_put_format(&s, "%d modifications, ", p->n_modify); | |
1160 | } | |
1161 | s.length -= 2; | |
1162 | ds_put_char(&s, ')'); | |
1163 | ||
fbfa2911 | 1164 | VLOG_INFO("%s: %s", p->name, ds_cstr(&s)); |
a5b8d268 BP |
1165 | ds_destroy(&s); |
1166 | ||
1167 | p->n_add = p->n_delete = p->n_modify = 0; | |
1168 | p->next_op_report = LLONG_MAX; | |
1169 | } | |
1170 | ||
5fcc0d00 BP |
1171 | return error; |
1172 | } | |
1173 | ||
1174 | /* Performs periodic activity required by 'ofproto' that needs to be done | |
1175 | * with the least possible latency. | |
1176 | * | |
1177 | * It makes sense to call this function a couple of times per poll loop, to | |
1178 | * provide a significant performance boost on some benchmarks with the | |
1179 | * ofproto-dpif implementation. */ | |
1180 | int | |
1181 | ofproto_run_fast(struct ofproto *p) | |
1182 | { | |
1183 | int error; | |
1184 | ||
1185 | error = p->ofproto_class->run_fast ? p->ofproto_class->run_fast(p) : 0; | |
1186 | if (error && error != EAGAIN) { | |
1187 | VLOG_ERR_RL(&rl, "%s: fastpath run failed (%s)", | |
1188 | p->name, strerror(error)); | |
1189 | } | |
1190 | return error; | |
064af421 BP |
1191 | } |
1192 | ||
1193 | void | |
1194 | ofproto_wait(struct ofproto *p) | |
1195 | { | |
031d8bff EJ |
1196 | struct ofport *ofport; |
1197 | ||
abe529af | 1198 | p->ofproto_class->wait(p); |
5bf0e941 BP |
1199 | if (p->ofproto_class->port_poll_wait) { |
1200 | p->ofproto_class->port_poll_wait(p); | |
e7934396 | 1201 | } |
031d8bff EJ |
1202 | |
1203 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
1204 | if (ofport->change_seq != netdev_change_seq(ofport->netdev)) { | |
1205 | poll_immediate_wake(); | |
1206 | } | |
1207 | } | |
7ee20df1 BP |
1208 | |
1209 | switch (p->state) { | |
1210 | case S_OPENFLOW: | |
1211 | connmgr_wait(p->connmgr, true); | |
1212 | break; | |
1213 | ||
254750ce | 1214 | case S_EVICT: |
7ee20df1 BP |
1215 | case S_FLUSH: |
1216 | connmgr_wait(p->connmgr, false); | |
1217 | if (list_is_empty(&p->pending) && hmap_is_empty(&p->deletions)) { | |
1218 | poll_immediate_wake(); | |
1219 | } | |
1220 | break; | |
1221 | } | |
064af421 BP |
1222 | } |
1223 | ||
064af421 BP |
1224 | bool |
1225 | ofproto_is_alive(const struct ofproto *p) | |
1226 | { | |
19a87e36 | 1227 | return connmgr_has_controllers(p->connmgr); |
064af421 BP |
1228 | } |
1229 | ||
0d085684 BP |
1230 | /* Adds some memory usage statistics for 'ofproto' into 'usage', for use with |
1231 | * memory_report(). */ | |
1232 | void | |
1233 | ofproto_get_memory_usage(const struct ofproto *ofproto, struct simap *usage) | |
1234 | { | |
1235 | const struct oftable *table; | |
1236 | unsigned int n_rules; | |
1237 | ||
1238 | simap_increase(usage, "ports", hmap_count(&ofproto->ports)); | |
1239 | simap_increase(usage, "ops", | |
1240 | ofproto->n_pending + hmap_count(&ofproto->deletions)); | |
1241 | ||
1242 | n_rules = 0; | |
1243 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { | |
1244 | n_rules += classifier_count(&table->cls); | |
1245 | } | |
1246 | simap_increase(usage, "rules", n_rules); | |
1247 | ||
1248 | if (ofproto->ofproto_class->get_memory_usage) { | |
1249 | ofproto->ofproto_class->get_memory_usage(ofproto, usage); | |
1250 | } | |
1251 | ||
1252 | connmgr_get_memory_usage(ofproto->connmgr, usage); | |
1253 | } | |
1254 | ||
bffc0589 | 1255 | void |
2cdcb898 | 1256 | ofproto_get_ofproto_controller_info(const struct ofproto *ofproto, |
bffc0589 AE |
1257 | struct shash *info) |
1258 | { | |
19a87e36 | 1259 | connmgr_get_controller_info(ofproto->connmgr, info); |
bffc0589 AE |
1260 | } |
1261 | ||
1262 | void | |
1263 | ofproto_free_ofproto_controller_info(struct shash *info) | |
1264 | { | |
72ba2ed3 | 1265 | connmgr_free_controller_info(info); |
bffc0589 AE |
1266 | } |
1267 | ||
b5827b24 BP |
1268 | /* Makes a deep copy of 'old' into 'port'. */ |
1269 | void | |
1270 | ofproto_port_clone(struct ofproto_port *port, const struct ofproto_port *old) | |
1271 | { | |
1272 | port->name = xstrdup(old->name); | |
1273 | port->type = xstrdup(old->type); | |
1274 | port->ofp_port = old->ofp_port; | |
1275 | } | |
1276 | ||
1277 | /* Frees memory allocated to members of 'ofproto_port'. | |
3a6ccc8c | 1278 | * |
b5827b24 BP |
1279 | * Do not call this function on an ofproto_port obtained from |
1280 | * ofproto_port_dump_next(): that function retains ownership of the data in the | |
1281 | * ofproto_port. */ | |
1282 | void | |
1283 | ofproto_port_destroy(struct ofproto_port *ofproto_port) | |
1284 | { | |
1285 | free(ofproto_port->name); | |
1286 | free(ofproto_port->type); | |
1287 | } | |
1288 | ||
b5827b24 | 1289 | /* Initializes 'dump' to begin dumping the ports in an ofproto. |
3a6ccc8c | 1290 | * |
b5827b24 BP |
1291 | * This function provides no status indication. An error status for the entire |
1292 | * dump operation is provided when it is completed by calling | |
1293 | * ofproto_port_dump_done(). | |
1294 | */ | |
1295 | void | |
1296 | ofproto_port_dump_start(struct ofproto_port_dump *dump, | |
1297 | const struct ofproto *ofproto) | |
1298 | { | |
abe529af BP |
1299 | dump->ofproto = ofproto; |
1300 | dump->error = ofproto->ofproto_class->port_dump_start(ofproto, | |
1301 | &dump->state); | |
b5827b24 BP |
1302 | } |
1303 | ||
1304 | /* Attempts to retrieve another port from 'dump', which must have been created | |
1305 | * with ofproto_port_dump_start(). On success, stores a new ofproto_port into | |
1306 | * 'port' and returns true. On failure, returns false. | |
1307 | * | |
1308 | * Failure might indicate an actual error or merely that the last port has been | |
1309 | * dumped. An error status for the entire dump operation is provided when it | |
1310 | * is completed by calling ofproto_port_dump_done(). | |
1311 | * | |
1312 | * The ofproto owns the data stored in 'port'. It will remain valid until at | |
1313 | * least the next time 'dump' is passed to ofproto_port_dump_next() or | |
1314 | * ofproto_port_dump_done(). */ | |
1315 | bool | |
1316 | ofproto_port_dump_next(struct ofproto_port_dump *dump, | |
1317 | struct ofproto_port *port) | |
1318 | { | |
abe529af BP |
1319 | const struct ofproto *ofproto = dump->ofproto; |
1320 | ||
1321 | if (dump->error) { | |
1322 | return false; | |
1323 | } | |
b5827b24 | 1324 | |
abe529af BP |
1325 | dump->error = ofproto->ofproto_class->port_dump_next(ofproto, dump->state, |
1326 | port); | |
1327 | if (dump->error) { | |
1328 | ofproto->ofproto_class->port_dump_done(ofproto, dump->state); | |
1329 | return false; | |
b5827b24 | 1330 | } |
abe529af | 1331 | return true; |
b5827b24 BP |
1332 | } |
1333 | ||
1334 | /* Completes port table dump operation 'dump', which must have been created | |
1335 | * with ofproto_port_dump_start(). Returns 0 if the dump operation was | |
1336 | * error-free, otherwise a positive errno value describing the problem. */ | |
3a6ccc8c | 1337 | int |
b5827b24 | 1338 | ofproto_port_dump_done(struct ofproto_port_dump *dump) |
3a6ccc8c | 1339 | { |
abe529af BP |
1340 | const struct ofproto *ofproto = dump->ofproto; |
1341 | if (!dump->error) { | |
1342 | dump->error = ofproto->ofproto_class->port_dump_done(ofproto, | |
1343 | dump->state); | |
1344 | } | |
1345 | return dump->error == EOF ? 0 : dump->error; | |
b5827b24 BP |
1346 | } |
1347 | ||
1348 | /* Attempts to add 'netdev' as a port on 'ofproto'. If successful, returns 0 | |
892815f5 | 1349 | * and sets '*ofp_portp' to the new port's OpenFlow port number (if 'ofp_portp' |
b5827b24 BP |
1350 | * is non-null). On failure, returns a positive errno value and sets |
1351 | * '*ofp_portp' to OFPP_NONE (if 'ofp_portp' is non-null). */ | |
1352 | int | |
1353 | ofproto_port_add(struct ofproto *ofproto, struct netdev *netdev, | |
1354 | uint16_t *ofp_portp) | |
1355 | { | |
abe529af | 1356 | uint16_t ofp_port; |
3a6ccc8c BP |
1357 | int error; |
1358 | ||
abe529af | 1359 | error = ofproto->ofproto_class->port_add(ofproto, netdev, &ofp_port); |
1fa24dea BP |
1360 | if (!error) { |
1361 | update_port(ofproto, netdev_get_name(netdev)); | |
1362 | } | |
b5827b24 | 1363 | if (ofp_portp) { |
abe529af | 1364 | *ofp_portp = error ? OFPP_NONE : ofp_port; |
3a6ccc8c BP |
1365 | } |
1366 | return error; | |
1367 | } | |
1368 | ||
b5827b24 BP |
1369 | /* Looks up a port named 'devname' in 'ofproto'. On success, returns 0 and |
1370 | * initializes '*port' appropriately; on failure, returns a positive errno | |
1371 | * value. | |
1372 | * | |
abe529af | 1373 | * The caller owns the data in 'ofproto_port' and must free it with |
b5827b24 BP |
1374 | * ofproto_port_destroy() when it is no longer needed. */ |
1375 | int | |
1376 | ofproto_port_query_by_name(const struct ofproto *ofproto, const char *devname, | |
1377 | struct ofproto_port *port) | |
a4e2e1f2 | 1378 | { |
b5827b24 BP |
1379 | int error; |
1380 | ||
abe529af BP |
1381 | error = ofproto->ofproto_class->port_query_by_name(ofproto, devname, port); |
1382 | if (error) { | |
1383 | memset(port, 0, sizeof *port); | |
b5827b24 BP |
1384 | } |
1385 | return error; | |
a4e2e1f2 EJ |
1386 | } |
1387 | ||
b5827b24 | 1388 | /* Deletes port number 'ofp_port' from the datapath for 'ofproto'. |
3a6ccc8c | 1389 | * Returns 0 if successful, otherwise a positive errno. */ |
064af421 | 1390 | int |
b5827b24 | 1391 | ofproto_port_del(struct ofproto *ofproto, uint16_t ofp_port) |
064af421 | 1392 | { |
abe529af | 1393 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1264ec95 | 1394 | const char *name = ofport ? netdev_get_name(ofport->netdev) : "<unknown>"; |
3cf10406 | 1395 | int error; |
cdee00fd | 1396 | |
abe529af | 1397 | error = ofproto->ofproto_class->port_del(ofproto, ofp_port); |
892815f5 | 1398 | if (!error && ofport) { |
1264ec95 BP |
1399 | /* 'name' is the netdev's name and update_port() is going to close the |
1400 | * netdev. Just in case update_port() refers to 'name' after it | |
3a6ccc8c BP |
1401 | * destroys 'ofport', make a copy of it around the update_port() |
1402 | * call. */ | |
1403 | char *devname = xstrdup(name); | |
1404 | update_port(ofproto, devname); | |
1405 | free(devname); | |
3cf10406 BP |
1406 | } |
1407 | return error; | |
064af421 BP |
1408 | } |
1409 | ||
6c1491fb | 1410 | /* Adds a flow to OpenFlow flow table 0 in 'p' that matches 'cls_rule' and |
fa8b054f BP |
1411 | * performs the 'n_actions' actions in 'actions'. The new flow will not |
1412 | * timeout. | |
1413 | * | |
1414 | * If cls_rule->priority is in the range of priorities supported by OpenFlow | |
1415 | * (0...65535, inclusive) then the flow will be visible to OpenFlow | |
1416 | * controllers; otherwise, it will be hidden. | |
1417 | * | |
f25d0cf3 | 1418 | * The caller retains ownership of 'cls_rule' and 'ofpacts'. |
6c1491fb BP |
1419 | * |
1420 | * This is a helper function for in-band control and fail-open. */ | |
064af421 | 1421 | void |
81a76618 BP |
1422 | ofproto_add_flow(struct ofproto *ofproto, const struct match *match, |
1423 | unsigned int priority, | |
f25d0cf3 | 1424 | const struct ofpact *ofpacts, size_t ofpacts_len) |
064af421 | 1425 | { |
7ee20df1 BP |
1426 | const struct rule *rule; |
1427 | ||
81a76618 BP |
1428 | rule = rule_from_cls_rule(classifier_find_match_exactly( |
1429 | &ofproto->tables[0].cls, match, priority)); | |
f25d0cf3 BP |
1430 | if (!rule || !ofpacts_equal(rule->ofpacts, rule->ofpacts_len, |
1431 | ofpacts, ofpacts_len)) { | |
a9a2da38 | 1432 | struct ofputil_flow_mod fm; |
7ee20df1 BP |
1433 | |
1434 | memset(&fm, 0, sizeof fm); | |
81a76618 BP |
1435 | fm.match = *match; |
1436 | fm.priority = priority; | |
7ee20df1 | 1437 | fm.buffer_id = UINT32_MAX; |
f25d0cf3 BP |
1438 | fm.ofpacts = xmemdup(ofpacts, ofpacts_len); |
1439 | fm.ofpacts_len = ofpacts_len; | |
7ee20df1 | 1440 | add_flow(ofproto, NULL, &fm, NULL); |
f25d0cf3 | 1441 | free(fm.ofpacts); |
7ee20df1 | 1442 | } |
064af421 BP |
1443 | } |
1444 | ||
75a75043 | 1445 | /* Executes the flow modification specified in 'fm'. Returns 0 on success, an |
90bf1e07 BP |
1446 | * OFPERR_* OpenFlow error code on failure, or OFPROTO_POSTPONE if the |
1447 | * operation cannot be initiated now but may be retried later. | |
75a75043 BP |
1448 | * |
1449 | * This is a helper function for in-band control and fail-open. */ | |
1450 | int | |
1451 | ofproto_flow_mod(struct ofproto *ofproto, const struct ofputil_flow_mod *fm) | |
1452 | { | |
1453 | return handle_flow_mod__(ofproto, NULL, fm, NULL); | |
1454 | } | |
1455 | ||
6c1491fb BP |
1456 | /* Searches for a rule with matching criteria exactly equal to 'target' in |
1457 | * ofproto's table 0 and, if it finds one, deletes it. | |
1458 | * | |
1459 | * This is a helper function for in-band control and fail-open. */ | |
7ee20df1 | 1460 | bool |
81a76618 BP |
1461 | ofproto_delete_flow(struct ofproto *ofproto, |
1462 | const struct match *target, unsigned int priority) | |
064af421 BP |
1463 | { |
1464 | struct rule *rule; | |
1465 | ||
81a76618 BP |
1466 | rule = rule_from_cls_rule(classifier_find_match_exactly( |
1467 | &ofproto->tables[0].cls, target, priority)); | |
7ee20df1 BP |
1468 | if (!rule) { |
1469 | /* No such rule -> success. */ | |
1470 | return true; | |
1471 | } else if (rule->pending) { | |
1472 | /* An operation on the rule is already pending -> failure. | |
1473 | * Caller must retry later if it's important. */ | |
1474 | return false; | |
1475 | } else { | |
1476 | /* Initiate deletion -> success. */ | |
7024dffe | 1477 | struct ofopgroup *group = ofopgroup_create_unattached(ofproto); |
2b07c8b1 | 1478 | ofoperation_create(group, rule, OFOPERATION_DELETE, OFPRR_DELETE); |
d0918789 | 1479 | oftable_remove_rule(rule); |
254750ce | 1480 | ofproto->ofproto_class->rule_destruct(rule); |
7ee20df1 BP |
1481 | ofopgroup_submit(group); |
1482 | return true; | |
bcf84111 | 1483 | } |
5ecc9d81 | 1484 | |
142e1f5c BP |
1485 | } |
1486 | ||
7ee20df1 BP |
1487 | /* Starts the process of deleting all of the flows from all of ofproto's flow |
1488 | * tables and then reintroducing the flows required by in-band control and | |
1489 | * fail-open. The process will complete in a later call to ofproto_run(). */ | |
142e1f5c BP |
1490 | void |
1491 | ofproto_flush_flows(struct ofproto *ofproto) | |
1492 | { | |
7ee20df1 BP |
1493 | COVERAGE_INC(ofproto_flush); |
1494 | ofproto->state = S_FLUSH; | |
064af421 BP |
1495 | } |
1496 | \f | |
1497 | static void | |
1498 | reinit_ports(struct ofproto *p) | |
1499 | { | |
abe529af | 1500 | struct ofproto_port_dump dump; |
b3c01ed3 | 1501 | struct sset devnames; |
064af421 | 1502 | struct ofport *ofport; |
abe529af | 1503 | struct ofproto_port ofproto_port; |
b3c01ed3 | 1504 | const char *devname; |
064af421 | 1505 | |
898bf89d JP |
1506 | COVERAGE_INC(ofproto_reinit_ports); |
1507 | ||
b3c01ed3 | 1508 | sset_init(&devnames); |
4e8e4213 | 1509 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { |
1264ec95 | 1510 | sset_add(&devnames, netdev_get_name(ofport->netdev)); |
064af421 | 1511 | } |
abe529af BP |
1512 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { |
1513 | sset_add(&devnames, ofproto_port.name); | |
064af421 | 1514 | } |
064af421 | 1515 | |
b3c01ed3 BP |
1516 | SSET_FOR_EACH (devname, &devnames) { |
1517 | update_port(p, devname); | |
064af421 | 1518 | } |
b3c01ed3 | 1519 | sset_destroy(&devnames); |
064af421 BP |
1520 | } |
1521 | ||
fbfa2911 BP |
1522 | /* Opens and returns a netdev for 'ofproto_port' in 'ofproto', or a null |
1523 | * pointer if the netdev cannot be opened. On success, also fills in | |
1524 | * 'opp'. */ | |
b33951b8 | 1525 | static struct netdev * |
fbfa2911 BP |
1526 | ofport_open(const struct ofproto *ofproto, |
1527 | const struct ofproto_port *ofproto_port, | |
9e1fd49b | 1528 | struct ofputil_phy_port *pp) |
064af421 BP |
1529 | { |
1530 | enum netdev_flags flags; | |
064af421 | 1531 | struct netdev *netdev; |
064af421 BP |
1532 | int error; |
1533 | ||
18812dff | 1534 | error = netdev_open(ofproto_port->name, ofproto_port->type, &netdev); |
064af421 | 1535 | if (error) { |
fbfa2911 | 1536 | VLOG_WARN_RL(&rl, "%s: ignoring port %s (%"PRIu16") because netdev %s " |
064af421 | 1537 | "cannot be opened (%s)", |
fbfa2911 | 1538 | ofproto->name, |
abe529af BP |
1539 | ofproto_port->name, ofproto_port->ofp_port, |
1540 | ofproto_port->name, strerror(error)); | |
064af421 BP |
1541 | return NULL; |
1542 | } | |
1543 | ||
9e1fd49b BP |
1544 | pp->port_no = ofproto_port->ofp_port; |
1545 | netdev_get_etheraddr(netdev, pp->hw_addr); | |
1546 | ovs_strlcpy(pp->name, ofproto_port->name, sizeof pp->name); | |
064af421 | 1547 | netdev_get_flags(netdev, &flags); |
9e1fd49b BP |
1548 | pp->config = flags & NETDEV_UP ? 0 : OFPUTIL_PC_PORT_DOWN; |
1549 | pp->state = netdev_get_carrier(netdev) ? 0 : OFPUTIL_PS_LINK_DOWN; | |
1550 | netdev_get_features(netdev, &pp->curr, &pp->advertised, | |
1551 | &pp->supported, &pp->peer); | |
1552 | pp->curr_speed = netdev_features_to_bps(pp->curr); | |
1553 | pp->max_speed = netdev_features_to_bps(pp->supported); | |
118c4676 | 1554 | |
b33951b8 | 1555 | return netdev; |
064af421 BP |
1556 | } |
1557 | ||
b33951b8 | 1558 | /* Returns true if most fields of 'a' and 'b' are equal. Differences in name, |
9e1fd49b | 1559 | * port number, and 'config' bits other than OFPUTIL_PS_LINK_DOWN are |
b33951b8 BP |
1560 | * disregarded. */ |
1561 | static bool | |
9e1fd49b BP |
1562 | ofport_equal(const struct ofputil_phy_port *a, |
1563 | const struct ofputil_phy_port *b) | |
064af421 | 1564 | { |
9e1fd49b | 1565 | return (eth_addr_equals(a->hw_addr, b->hw_addr) |
064af421 | 1566 | && a->state == b->state |
9e1fd49b | 1567 | && !((a->config ^ b->config) & OFPUTIL_PC_PORT_DOWN) |
064af421 BP |
1568 | && a->curr == b->curr |
1569 | && a->advertised == b->advertised | |
1570 | && a->supported == b->supported | |
9e1fd49b BP |
1571 | && a->peer == b->peer |
1572 | && a->curr_speed == b->curr_speed | |
1573 | && a->max_speed == b->max_speed); | |
064af421 BP |
1574 | } |
1575 | ||
b33951b8 BP |
1576 | /* Adds an ofport to 'p' initialized based on the given 'netdev' and 'opp'. |
1577 | * The caller must ensure that 'p' does not have a conflicting ofport (that is, | |
1578 | * one with the same name or port number). */ | |
064af421 | 1579 | static void |
b33951b8 | 1580 | ofport_install(struct ofproto *p, |
9e1fd49b | 1581 | struct netdev *netdev, const struct ofputil_phy_port *pp) |
064af421 | 1582 | { |
b33951b8 BP |
1583 | const char *netdev_name = netdev_get_name(netdev); |
1584 | struct ofport *ofport; | |
abe529af | 1585 | int error; |
72b06300 | 1586 | |
b33951b8 | 1587 | /* Create ofport. */ |
abe529af BP |
1588 | ofport = p->ofproto_class->port_alloc(); |
1589 | if (!ofport) { | |
1590 | error = ENOMEM; | |
1591 | goto error; | |
1592 | } | |
0f7d71a5 | 1593 | ofport->ofproto = p; |
b33951b8 | 1594 | ofport->netdev = netdev; |
031d8bff | 1595 | ofport->change_seq = netdev_change_seq(netdev); |
9e1fd49b BP |
1596 | ofport->pp = *pp; |
1597 | ofport->ofp_port = pp->port_no; | |
b33951b8 BP |
1598 | |
1599 | /* Add port to 'p'. */ | |
abe529af | 1600 | hmap_insert(&p->ports, &ofport->hmap_node, hash_int(ofport->ofp_port, 0)); |
72b06300 | 1601 | shash_add(&p->port_by_name, netdev_name, ofport); |
abe529af | 1602 | |
ada3428f | 1603 | update_mtu(p, ofport); |
9197df76 | 1604 | |
abe529af BP |
1605 | /* Let the ofproto_class initialize its private data. */ |
1606 | error = p->ofproto_class->port_construct(ofport); | |
1607 | if (error) { | |
1608 | goto error; | |
1609 | } | |
9e1fd49b | 1610 | connmgr_send_port_status(p->connmgr, pp, OFPPR_ADD); |
abe529af BP |
1611 | return; |
1612 | ||
1613 | error: | |
1614 | VLOG_WARN_RL(&rl, "%s: could not add port %s (%s)", | |
1615 | p->name, netdev_name, strerror(error)); | |
1616 | if (ofport) { | |
1617 | ofport_destroy__(ofport); | |
1618 | } else { | |
1619 | netdev_close(netdev); | |
72b06300 | 1620 | } |
064af421 BP |
1621 | } |
1622 | ||
b33951b8 | 1623 | /* Removes 'ofport' from 'p' and destroys it. */ |
064af421 | 1624 | static void |
0f7d71a5 | 1625 | ofport_remove(struct ofport *ofport) |
064af421 | 1626 | { |
9e1fd49b | 1627 | connmgr_send_port_status(ofport->ofproto->connmgr, &ofport->pp, |
fa066f01 | 1628 | OFPPR_DELETE); |
abe529af | 1629 | ofport_destroy(ofport); |
b33951b8 BP |
1630 | } |
1631 | ||
1632 | /* If 'ofproto' contains an ofport named 'name', removes it from 'ofproto' and | |
1633 | * destroys it. */ | |
1634 | static void | |
1635 | ofport_remove_with_name(struct ofproto *ofproto, const char *name) | |
1636 | { | |
1637 | struct ofport *port = shash_find_data(&ofproto->port_by_name, name); | |
1638 | if (port) { | |
0f7d71a5 | 1639 | ofport_remove(port); |
b33951b8 BP |
1640 | } |
1641 | } | |
1642 | ||
9e1fd49b | 1643 | /* Updates 'port' with new 'pp' description. |
b33951b8 BP |
1644 | * |
1645 | * Does not handle a name or port number change. The caller must implement | |
1646 | * such a change as a delete followed by an add. */ | |
1647 | static void | |
9e1fd49b | 1648 | ofport_modified(struct ofport *port, struct ofputil_phy_port *pp) |
b33951b8 | 1649 | { |
9e1fd49b BP |
1650 | memcpy(port->pp.hw_addr, pp->hw_addr, ETH_ADDR_LEN); |
1651 | port->pp.config = ((port->pp.config & ~OFPUTIL_PC_PORT_DOWN) | |
1652 | | (pp->config & OFPUTIL_PC_PORT_DOWN)); | |
1653 | port->pp.state = pp->state; | |
1654 | port->pp.curr = pp->curr; | |
1655 | port->pp.advertised = pp->advertised; | |
1656 | port->pp.supported = pp->supported; | |
1657 | port->pp.peer = pp->peer; | |
1658 | port->pp.curr_speed = pp->curr_speed; | |
1659 | port->pp.max_speed = pp->max_speed; | |
b33951b8 | 1660 | |
9e1fd49b | 1661 | connmgr_send_port_status(port->ofproto->connmgr, &port->pp, OFPPR_MODIFY); |
064af421 BP |
1662 | } |
1663 | ||
5a2dfd47 JP |
1664 | /* Update OpenFlow 'state' in 'port' and notify controller. */ |
1665 | void | |
9e1fd49b | 1666 | ofproto_port_set_state(struct ofport *port, enum ofputil_port_state state) |
5a2dfd47 | 1667 | { |
9e1fd49b BP |
1668 | if (port->pp.state != state) { |
1669 | port->pp.state = state; | |
1670 | connmgr_send_port_status(port->ofproto->connmgr, &port->pp, | |
5a2dfd47 JP |
1671 | OFPPR_MODIFY); |
1672 | } | |
1673 | } | |
1674 | ||
abe529af BP |
1675 | void |
1676 | ofproto_port_unregister(struct ofproto *ofproto, uint16_t ofp_port) | |
e7934396 | 1677 | { |
abe529af BP |
1678 | struct ofport *port = ofproto_get_port(ofproto, ofp_port); |
1679 | if (port) { | |
52a90c29 BP |
1680 | if (port->ofproto->ofproto_class->set_realdev) { |
1681 | port->ofproto->ofproto_class->set_realdev(port, 0, 0); | |
1682 | } | |
b308140a JP |
1683 | if (port->ofproto->ofproto_class->set_stp_port) { |
1684 | port->ofproto->ofproto_class->set_stp_port(port, NULL); | |
1685 | } | |
abe529af | 1686 | if (port->ofproto->ofproto_class->set_cfm) { |
a5610457 | 1687 | port->ofproto->ofproto_class->set_cfm(port, NULL); |
abe529af BP |
1688 | } |
1689 | if (port->ofproto->ofproto_class->bundle_remove) { | |
1690 | port->ofproto->ofproto_class->bundle_remove(port); | |
e7934396 BP |
1691 | } |
1692 | } | |
1693 | } | |
1694 | ||
1695 | static void | |
abe529af | 1696 | ofport_destroy__(struct ofport *port) |
e7934396 | 1697 | { |
abe529af BP |
1698 | struct ofproto *ofproto = port->ofproto; |
1699 | const char *name = netdev_get_name(port->netdev); | |
fa066f01 | 1700 | |
abe529af BP |
1701 | hmap_remove(&ofproto->ports, &port->hmap_node); |
1702 | shash_delete(&ofproto->port_by_name, | |
1703 | shash_find(&ofproto->port_by_name, name)); | |
fa066f01 | 1704 | |
abe529af BP |
1705 | netdev_close(port->netdev); |
1706 | ofproto->ofproto_class->port_dealloc(port); | |
e7934396 BP |
1707 | } |
1708 | ||
064af421 | 1709 | static void |
abe529af | 1710 | ofport_destroy(struct ofport *port) |
064af421 | 1711 | { |
fa066f01 | 1712 | if (port) { |
abe529af BP |
1713 | port->ofproto->ofproto_class->port_destruct(port); |
1714 | ofport_destroy__(port); | |
1715 | } | |
064af421 BP |
1716 | } |
1717 | ||
abe529af BP |
1718 | struct ofport * |
1719 | ofproto_get_port(const struct ofproto *ofproto, uint16_t ofp_port) | |
ca0f572c BP |
1720 | { |
1721 | struct ofport *port; | |
1722 | ||
4e8e4213 | 1723 | HMAP_FOR_EACH_IN_BUCKET (port, hmap_node, |
abe529af BP |
1724 | hash_int(ofp_port, 0), &ofproto->ports) { |
1725 | if (port->ofp_port == ofp_port) { | |
ca0f572c BP |
1726 | return port; |
1727 | } | |
1728 | } | |
1729 | return NULL; | |
1730 | } | |
1731 | ||
6527c598 PS |
1732 | int |
1733 | ofproto_port_get_stats(const struct ofport *port, struct netdev_stats *stats) | |
1734 | { | |
1735 | struct ofproto *ofproto = port->ofproto; | |
1736 | int error; | |
1737 | ||
1738 | if (ofproto->ofproto_class->port_get_stats) { | |
1739 | error = ofproto->ofproto_class->port_get_stats(port, stats); | |
1740 | } else { | |
1741 | error = EOPNOTSUPP; | |
1742 | } | |
1743 | ||
1744 | return error; | |
1745 | } | |
1746 | ||
064af421 | 1747 | static void |
b33951b8 | 1748 | update_port(struct ofproto *ofproto, const char *name) |
064af421 | 1749 | { |
abe529af | 1750 | struct ofproto_port ofproto_port; |
9e1fd49b | 1751 | struct ofputil_phy_port pp; |
b33951b8 BP |
1752 | struct netdev *netdev; |
1753 | struct ofport *port; | |
064af421 BP |
1754 | |
1755 | COVERAGE_INC(ofproto_update_port); | |
c874dc6d | 1756 | |
b33951b8 | 1757 | /* Fetch 'name''s location and properties from the datapath. */ |
abe529af | 1758 | netdev = (!ofproto_port_query_by_name(ofproto, name, &ofproto_port) |
fbfa2911 | 1759 | ? ofport_open(ofproto, &ofproto_port, &pp) |
b33951b8 BP |
1760 | : NULL); |
1761 | if (netdev) { | |
abe529af | 1762 | port = ofproto_get_port(ofproto, ofproto_port.ofp_port); |
b33951b8 | 1763 | if (port && !strcmp(netdev_get_name(port->netdev), name)) { |
e65942a0 BP |
1764 | struct netdev *old_netdev = port->netdev; |
1765 | ||
b33951b8 | 1766 | /* 'name' hasn't changed location. Any properties changed? */ |
9e1fd49b BP |
1767 | if (!ofport_equal(&port->pp, &pp)) { |
1768 | ofport_modified(port, &pp); | |
abe529af BP |
1769 | } |
1770 | ||
ada3428f | 1771 | update_mtu(ofproto, port); |
9197df76 | 1772 | |
e65942a0 BP |
1773 | /* Install the newly opened netdev in case it has changed. |
1774 | * Don't close the old netdev yet in case port_modified has to | |
1775 | * remove a retained reference to it.*/ | |
abe529af | 1776 | port->netdev = netdev; |
031d8bff | 1777 | port->change_seq = netdev_change_seq(netdev); |
abe529af BP |
1778 | |
1779 | if (port->ofproto->ofproto_class->port_modified) { | |
1780 | port->ofproto->ofproto_class->port_modified(port); | |
b33951b8 | 1781 | } |
e65942a0 BP |
1782 | |
1783 | netdev_close(old_netdev); | |
b33951b8 BP |
1784 | } else { |
1785 | /* If 'port' is nonnull then its name differs from 'name' and thus | |
1786 | * we should delete it. If we think there's a port named 'name' | |
1787 | * then its port number must be wrong now so delete it too. */ | |
1788 | if (port) { | |
0f7d71a5 | 1789 | ofport_remove(port); |
b33951b8 BP |
1790 | } |
1791 | ofport_remove_with_name(ofproto, name); | |
9e1fd49b | 1792 | ofport_install(ofproto, netdev, &pp); |
c874dc6d | 1793 | } |
b33951b8 BP |
1794 | } else { |
1795 | /* Any port named 'name' is gone now. */ | |
1796 | ofport_remove_with_name(ofproto, name); | |
c874dc6d | 1797 | } |
abe529af | 1798 | ofproto_port_destroy(&ofproto_port); |
064af421 BP |
1799 | } |
1800 | ||
1801 | static int | |
1802 | init_ports(struct ofproto *p) | |
1803 | { | |
abe529af BP |
1804 | struct ofproto_port_dump dump; |
1805 | struct ofproto_port ofproto_port; | |
1806 | ||
1807 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { | |
1808 | uint16_t ofp_port = ofproto_port.ofp_port; | |
1809 | if (ofproto_get_port(p, ofp_port)) { | |
fbfa2911 BP |
1810 | VLOG_WARN_RL(&rl, "%s: ignoring duplicate port %"PRIu16" " |
1811 | "in datapath", p->name, ofp_port); | |
abe529af | 1812 | } else if (shash_find(&p->port_by_name, ofproto_port.name)) { |
fbfa2911 BP |
1813 | VLOG_WARN_RL(&rl, "%s: ignoring duplicate device %s in datapath", |
1814 | p->name, ofproto_port.name); | |
abe529af | 1815 | } else { |
9e1fd49b | 1816 | struct ofputil_phy_port pp; |
b33951b8 BP |
1817 | struct netdev *netdev; |
1818 | ||
fbfa2911 | 1819 | netdev = ofport_open(p, &ofproto_port, &pp); |
b33951b8 | 1820 | if (netdev) { |
9e1fd49b | 1821 | ofport_install(p, netdev, &pp); |
064af421 BP |
1822 | } |
1823 | } | |
1824 | } | |
b0ec0f27 | 1825 | |
064af421 BP |
1826 | return 0; |
1827 | } | |
9197df76 JP |
1828 | |
1829 | /* Find the minimum MTU of all non-datapath devices attached to 'p'. | |
1830 | * Returns ETH_PAYLOAD_MAX or the minimum of the ports. */ | |
1831 | static int | |
1832 | find_min_mtu(struct ofproto *p) | |
1833 | { | |
1834 | struct ofport *ofport; | |
1835 | int mtu = 0; | |
1836 | ||
1837 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
1838 | struct netdev *netdev = ofport->netdev; | |
1839 | int dev_mtu; | |
1840 | ||
1841 | /* Skip any internal ports, since that's what we're trying to | |
1842 | * set. */ | |
1843 | if (!strcmp(netdev_get_type(netdev), "internal")) { | |
1844 | continue; | |
1845 | } | |
1846 | ||
1847 | if (netdev_get_mtu(netdev, &dev_mtu)) { | |
1848 | continue; | |
1849 | } | |
1850 | if (!mtu || dev_mtu < mtu) { | |
1851 | mtu = dev_mtu; | |
1852 | } | |
1853 | } | |
1854 | ||
1855 | return mtu ? mtu: ETH_PAYLOAD_MAX; | |
1856 | } | |
1857 | ||
ada3428f PS |
1858 | /* Update MTU of all datapath devices on 'p' to the minimum of the |
1859 | * non-datapath ports in event of 'port' added or changed. */ | |
9197df76 | 1860 | static void |
ada3428f | 1861 | update_mtu(struct ofproto *p, struct ofport *port) |
9197df76 JP |
1862 | { |
1863 | struct ofport *ofport; | |
ada3428f PS |
1864 | struct netdev *netdev = port->netdev; |
1865 | int dev_mtu, old_min; | |
1866 | ||
1867 | if (netdev_get_mtu(netdev, &dev_mtu)) { | |
1868 | port->mtu = 0; | |
1869 | return; | |
1870 | } | |
1871 | if (!strcmp(netdev_get_type(port->netdev), "internal")) { | |
1872 | if (dev_mtu > p->min_mtu) { | |
1873 | if (!netdev_set_mtu(port->netdev, p->min_mtu)) { | |
1874 | dev_mtu = p->min_mtu; | |
1875 | } | |
1876 | } | |
1877 | port->mtu = dev_mtu; | |
1878 | return; | |
1879 | } | |
1880 | ||
1881 | /* For non-internal port find new min mtu. */ | |
1882 | old_min = p->min_mtu; | |
1883 | port->mtu = dev_mtu; | |
1884 | p->min_mtu = find_min_mtu(p); | |
1885 | if (p->min_mtu == old_min) { | |
1886 | return; | |
1887 | } | |
9197df76 JP |
1888 | |
1889 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
1890 | struct netdev *netdev = ofport->netdev; | |
1891 | ||
1892 | if (!strcmp(netdev_get_type(netdev), "internal")) { | |
ada3428f PS |
1893 | if (!netdev_set_mtu(netdev, p->min_mtu)) { |
1894 | ofport->mtu = p->min_mtu; | |
1895 | } | |
9197df76 JP |
1896 | } |
1897 | } | |
1898 | } | |
064af421 | 1899 | \f |
064af421 | 1900 | static void |
abe529af | 1901 | ofproto_rule_destroy__(struct rule *rule) |
064af421 | 1902 | { |
1eae3d33 | 1903 | if (rule) { |
48d28ac1 | 1904 | cls_rule_destroy(&rule->cr); |
f25d0cf3 | 1905 | free(rule->ofpacts); |
1eae3d33 BP |
1906 | rule->ofproto->ofproto_class->rule_dealloc(rule); |
1907 | } | |
064af421 BP |
1908 | } |
1909 | ||
7ee20df1 BP |
1910 | /* This function allows an ofproto implementation to destroy any rules that |
1911 | * remain when its ->destruct() function is called. The caller must have | |
1912 | * already uninitialized any derived members of 'rule' (step 5 described in the | |
5bee6e26 JP |
1913 | * large comment in ofproto/ofproto-provider.h titled "Life Cycle"). |
1914 | * This function implements steps 6 and 7. | |
7ee20df1 BP |
1915 | * |
1916 | * This function should only be called from an ofproto implementation's | |
1917 | * ->destruct() function. It is not suitable elsewhere. */ | |
abe529af BP |
1918 | void |
1919 | ofproto_rule_destroy(struct rule *rule) | |
064af421 | 1920 | { |
7ee20df1 | 1921 | assert(!rule->pending); |
d0918789 | 1922 | oftable_remove_rule(rule); |
7ee20df1 | 1923 | ofproto_rule_destroy__(rule); |
064af421 BP |
1924 | } |
1925 | ||
bcf84111 | 1926 | /* Returns true if 'rule' has an OpenFlow OFPAT_OUTPUT or OFPAT_ENQUEUE action |
f25d0cf3 | 1927 | * that outputs to 'port' (output to OFPP_FLOOD and OFPP_ALL doesn't count). */ |
2b07c8b1 BP |
1928 | bool |
1929 | ofproto_rule_has_out_port(const struct rule *rule, uint16_t port) | |
064af421 | 1930 | { |
f25d0cf3 BP |
1931 | return (port == OFPP_NONE |
1932 | || ofpacts_output_to_port(rule->ofpacts, rule->ofpacts_len, port)); | |
064af421 BP |
1933 | } |
1934 | ||
2b07c8b1 BP |
1935 | /* Returns true if a rule related to 'op' has an OpenFlow OFPAT_OUTPUT or |
1936 | * OFPAT_ENQUEUE action that outputs to 'out_port'. */ | |
1937 | bool | |
1938 | ofoperation_has_out_port(const struct ofoperation *op, uint16_t out_port) | |
1939 | { | |
1940 | if (ofproto_rule_has_out_port(op->rule, out_port)) { | |
1941 | return true; | |
1942 | } | |
1943 | ||
1944 | switch (op->type) { | |
1945 | case OFOPERATION_ADD: | |
1946 | return op->victim && ofproto_rule_has_out_port(op->victim, out_port); | |
1947 | ||
1948 | case OFOPERATION_DELETE: | |
1949 | return false; | |
1950 | ||
1951 | case OFOPERATION_MODIFY: | |
1952 | return ofpacts_output_to_port(op->ofpacts, op->ofpacts_len, out_port); | |
1953 | } | |
1954 | ||
1955 | NOT_REACHED(); | |
1956 | } | |
1957 | ||
bcf84111 | 1958 | /* Executes the actions indicated by 'rule' on 'packet' and credits 'rule''s |
bcf84111 BP |
1959 | * statistics appropriately. 'packet' must have at least sizeof(struct |
1960 | * ofp_packet_in) bytes of headroom. | |
064af421 | 1961 | * |
bcf84111 BP |
1962 | * 'packet' doesn't necessarily have to match 'rule'. 'rule' will be credited |
1963 | * with statistics for 'packet' either way. | |
1964 | * | |
1965 | * Takes ownership of 'packet'. */ | |
5bf0e941 | 1966 | static int |
abe529af | 1967 | rule_execute(struct rule *rule, uint16_t in_port, struct ofpbuf *packet) |
eedc0097 | 1968 | { |
bcf84111 | 1969 | struct flow flow; |
eedc0097 | 1970 | |
abe529af | 1971 | assert(ofpbuf_headroom(packet) >= sizeof(struct ofp_packet_in)); |
eedc0097 | 1972 | |
abff858b | 1973 | flow_extract(packet, 0, 0, in_port, &flow); |
5bf0e941 | 1974 | return rule->ofproto->ofproto_class->rule_execute(rule, &flow, packet); |
350a665f BP |
1975 | } |
1976 | ||
abe529af BP |
1977 | /* Returns true if 'rule' should be hidden from the controller. |
1978 | * | |
1979 | * Rules with priority higher than UINT16_MAX are set up by ofproto itself | |
1980 | * (e.g. by in-band control) and are intentionally hidden from the | |
1981 | * controller. */ | |
2b07c8b1 BP |
1982 | bool |
1983 | ofproto_rule_is_hidden(const struct rule *rule) | |
b6c9e612 | 1984 | { |
abe529af | 1985 | return rule->cr.priority > UINT16_MAX; |
7b064a79 | 1986 | } |
5c67e4af BP |
1987 | |
1988 | static enum oftable_flags | |
1989 | rule_get_flags(const struct rule *rule) | |
1990 | { | |
1991 | return rule->ofproto->tables[rule->table_id].flags; | |
1992 | } | |
1993 | ||
1994 | static bool | |
1995 | rule_is_modifiable(const struct rule *rule) | |
1996 | { | |
1997 | return !(rule_get_flags(rule) & OFTABLE_READONLY); | |
1998 | } | |
fa066f01 | 1999 | \f |
90bf1e07 | 2000 | static enum ofperr |
d1e2cf21 | 2001 | handle_echo_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 2002 | { |
b0421aa2 | 2003 | ofconn_send_reply(ofconn, make_echo_reply(oh)); |
064af421 | 2004 | return 0; |
064af421 BP |
2005 | } |
2006 | ||
90bf1e07 | 2007 | static enum ofperr |
d1e2cf21 | 2008 | handle_features_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 2009 | { |
64ff1d96 | 2010 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
9e1fd49b | 2011 | struct ofputil_switch_features features; |
064af421 | 2012 | struct ofport *port; |
6c1491fb | 2013 | bool arp_match_ip; |
9e1fd49b | 2014 | struct ofpbuf *b; |
064af421 | 2015 | |
9e1fd49b BP |
2016 | ofproto->ofproto_class->get_features(ofproto, &arp_match_ip, |
2017 | &features.actions); | |
2018 | assert(features.actions & OFPUTIL_A_OUTPUT); /* sanity check */ | |
064af421 | 2019 | |
9e1fd49b BP |
2020 | features.datapath_id = ofproto->datapath_id; |
2021 | features.n_buffers = pktbuf_capacity(); | |
2022 | features.n_tables = ofproto->n_tables; | |
2023 | features.capabilities = (OFPUTIL_C_FLOW_STATS | OFPUTIL_C_TABLE_STATS | | |
2024 | OFPUTIL_C_PORT_STATS | OFPUTIL_C_QUEUE_STATS); | |
6c1491fb | 2025 | if (arp_match_ip) { |
9e1fd49b | 2026 | features.capabilities |= OFPUTIL_C_ARP_MATCH_IP; |
6c1491fb | 2027 | } |
064af421 | 2028 | |
9e1fd49b BP |
2029 | b = ofputil_encode_switch_features(&features, ofconn_get_protocol(ofconn), |
2030 | oh->xid); | |
64ff1d96 | 2031 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
9e1fd49b | 2032 | ofputil_put_switch_features_port(&port->pp, b); |
064af421 | 2033 | } |
064af421 | 2034 | |
9e1fd49b | 2035 | ofconn_send_reply(ofconn, b); |
064af421 BP |
2036 | return 0; |
2037 | } | |
064af421 | 2038 | |
90bf1e07 | 2039 | static enum ofperr |
d1e2cf21 | 2040 | handle_get_config_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 2041 | { |
64ff1d96 | 2042 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
064af421 | 2043 | struct ofp_switch_config *osc; |
f0fd1a17 | 2044 | enum ofp_config_flags flags; |
7257b535 | 2045 | struct ofpbuf *buf; |
959a2ecd | 2046 | |
064af421 | 2047 | /* Send reply. */ |
982697a4 BP |
2048 | buf = ofpraw_alloc_reply(OFPRAW_OFPT_GET_CONFIG_REPLY, oh, 0); |
2049 | osc = ofpbuf_put_uninit(buf, sizeof *osc); | |
f0fd1a17 PS |
2050 | flags = ofproto->frag_handling; |
2051 | if (ofconn_get_invalid_ttl_to_controller(ofconn)) { | |
2052 | flags |= OFPC_INVALID_TTL_TO_CONTROLLER; | |
2053 | } | |
2054 | osc->flags = htons(flags); | |
810605a2 | 2055 | osc->miss_send_len = htons(ofconn_get_miss_send_len(ofconn)); |
b0421aa2 | 2056 | ofconn_send_reply(ofconn, buf); |
2d70a31a | 2057 | |
064af421 BP |
2058 | return 0; |
2059 | } | |
064af421 | 2060 | |
90bf1e07 | 2061 | static enum ofperr |
982697a4 | 2062 | handle_set_config(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 2063 | { |
982697a4 | 2064 | const struct ofp_switch_config *osc = ofpmsg_body(oh); |
64ff1d96 | 2065 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
d1e2cf21 | 2066 | uint16_t flags = ntohs(osc->flags); |
2d70a31a | 2067 | |
7257b535 BP |
2068 | if (ofconn_get_type(ofconn) != OFCONN_PRIMARY |
2069 | || ofconn_get_role(ofconn) != NX_ROLE_SLAVE) { | |
2070 | enum ofp_config_flags cur = ofproto->frag_handling; | |
2071 | enum ofp_config_flags next = flags & OFPC_FRAG_MASK; | |
2072 | ||
2073 | assert((cur & OFPC_FRAG_MASK) == cur); | |
2074 | if (cur != next) { | |
2075 | if (ofproto->ofproto_class->set_frag_handling(ofproto, next)) { | |
2076 | ofproto->frag_handling = next; | |
2077 | } else { | |
2078 | VLOG_WARN_RL(&rl, "%s: unsupported fragment handling mode %s", | |
2079 | ofproto->name, | |
2080 | ofputil_frag_handling_to_string(next)); | |
2081 | } | |
064af421 BP |
2082 | } |
2083 | } | |
f0fd1a17 | 2084 | ofconn_set_invalid_ttl_to_controller(ofconn, |
05fe1764 | 2085 | (flags & OFPC_INVALID_TTL_TO_CONTROLLER)); |
ebe482fd | 2086 | |
810605a2 | 2087 | ofconn_set_miss_send_len(ofconn, ntohs(osc->miss_send_len)); |
0ad9b732 | 2088 | |
064af421 | 2089 | return 0; |
064af421 BP |
2090 | } |
2091 | ||
9deba63b | 2092 | /* Checks whether 'ofconn' is a slave controller. If so, returns an OpenFlow |
90bf1e07 BP |
2093 | * error message code for the caller to propagate upward. Otherwise, returns |
2094 | * 0. | |
2095 | * | |
2096 | * The log message mentions 'msg_type'. */ | |
2097 | static enum ofperr | |
2098 | reject_slave_controller(struct ofconn *ofconn) | |
9deba63b | 2099 | { |
1ce0a5fa BP |
2100 | if (ofconn_get_type(ofconn) == OFCONN_PRIMARY |
2101 | && ofconn_get_role(ofconn) == NX_ROLE_SLAVE) { | |
90bf1e07 | 2102 | return OFPERR_OFPBRC_EPERM; |
9deba63b BP |
2103 | } else { |
2104 | return 0; | |
2105 | } | |
2106 | } | |
2107 | ||
90bf1e07 | 2108 | static enum ofperr |
982697a4 | 2109 | handle_packet_out(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 2110 | { |
64ff1d96 | 2111 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
c6a93eb7 BP |
2112 | struct ofputil_packet_out po; |
2113 | struct ofpbuf *payload; | |
f25d0cf3 BP |
2114 | uint64_t ofpacts_stub[1024 / 8]; |
2115 | struct ofpbuf ofpacts; | |
ae412e7d | 2116 | struct flow flow; |
90bf1e07 | 2117 | enum ofperr error; |
064af421 | 2118 | |
ac51afaf BP |
2119 | COVERAGE_INC(ofproto_packet_out); |
2120 | ||
76589937 | 2121 | error = reject_slave_controller(ofconn); |
9deba63b | 2122 | if (error) { |
f25d0cf3 | 2123 | goto exit; |
9deba63b BP |
2124 | } |
2125 | ||
c6a93eb7 | 2126 | /* Decode message. */ |
f25d0cf3 | 2127 | ofpbuf_use_stub(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); |
982697a4 | 2128 | error = ofputil_decode_packet_out(&po, oh, &ofpacts); |
064af421 | 2129 | if (error) { |
f25d0cf3 | 2130 | goto exit_free_ofpacts; |
064af421 | 2131 | } |
91858960 BP |
2132 | if (po.in_port >= p->max_ports && po.in_port < OFPP_MAX) { |
2133 | error = OFPERR_NXBRC_BAD_IN_PORT; | |
2134 | goto exit_free_ofpacts; | |
2135 | } | |
064af421 | 2136 | |
ac51afaf | 2137 | /* Get payload. */ |
c6a93eb7 BP |
2138 | if (po.buffer_id != UINT32_MAX) { |
2139 | error = ofconn_pktbuf_retrieve(ofconn, po.buffer_id, &payload, NULL); | |
2140 | if (error || !payload) { | |
f25d0cf3 | 2141 | goto exit_free_ofpacts; |
064af421 | 2142 | } |
064af421 | 2143 | } else { |
c6a93eb7 BP |
2144 | payload = xmalloc(sizeof *payload); |
2145 | ofpbuf_use_const(payload, po.packet, po.packet_len); | |
e1154f71 BP |
2146 | } |
2147 | ||
548de4dd | 2148 | /* Verify actions against packet, then send packet if successful. */ |
c6a93eb7 | 2149 | flow_extract(payload, 0, 0, po.in_port, &flow); |
548de4dd BP |
2150 | error = ofpacts_check(po.ofpacts, po.ofpacts_len, &flow, p->max_ports); |
2151 | if (!error) { | |
2152 | error = p->ofproto_class->packet_out(p, payload, &flow, | |
2153 | po.ofpacts, po.ofpacts_len); | |
2154 | } | |
c6a93eb7 | 2155 | ofpbuf_delete(payload); |
abe529af | 2156 | |
f25d0cf3 BP |
2157 | exit_free_ofpacts: |
2158 | ofpbuf_uninit(&ofpacts); | |
2159 | exit: | |
abe529af | 2160 | return error; |
064af421 BP |
2161 | } |
2162 | ||
2163 | static void | |
9e1fd49b BP |
2164 | update_port_config(struct ofport *port, |
2165 | enum ofputil_port_config config, | |
2166 | enum ofputil_port_config mask) | |
064af421 | 2167 | { |
9e1fd49b BP |
2168 | enum ofputil_port_config old_config = port->pp.config; |
2169 | enum ofputil_port_config toggle; | |
abe529af | 2170 | |
9e1fd49b BP |
2171 | toggle = (config ^ port->pp.config) & mask; |
2172 | if (toggle & OFPUTIL_PC_PORT_DOWN) { | |
2173 | if (config & OFPUTIL_PC_PORT_DOWN) { | |
064af421 BP |
2174 | netdev_turn_flags_off(port->netdev, NETDEV_UP, true); |
2175 | } else { | |
2176 | netdev_turn_flags_on(port->netdev, NETDEV_UP, true); | |
2177 | } | |
9e1fd49b | 2178 | toggle &= ~OFPUTIL_PC_PORT_DOWN; |
064af421 | 2179 | } |
abe529af | 2180 | |
9e1fd49b BP |
2181 | port->pp.config ^= toggle; |
2182 | if (port->pp.config != old_config) { | |
abe529af | 2183 | port->ofproto->ofproto_class->port_reconfigured(port, old_config); |
064af421 BP |
2184 | } |
2185 | } | |
2186 | ||
90bf1e07 | 2187 | static enum ofperr |
d1e2cf21 | 2188 | handle_port_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 2189 | { |
64ff1d96 | 2190 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
9e1fd49b | 2191 | struct ofputil_port_mod pm; |
064af421 | 2192 | struct ofport *port; |
9e1fd49b | 2193 | enum ofperr error; |
064af421 | 2194 | |
76589937 | 2195 | error = reject_slave_controller(ofconn); |
9deba63b BP |
2196 | if (error) { |
2197 | return error; | |
2198 | } | |
064af421 | 2199 | |
9e1fd49b BP |
2200 | error = ofputil_decode_port_mod(oh, &pm); |
2201 | if (error) { | |
2202 | return error; | |
2203 | } | |
2204 | ||
2205 | port = ofproto_get_port(p, pm.port_no); | |
064af421 | 2206 | if (!port) { |
90bf1e07 | 2207 | return OFPERR_OFPPMFC_BAD_PORT; |
9e1fd49b | 2208 | } else if (!eth_addr_equals(port->pp.hw_addr, pm.hw_addr)) { |
90bf1e07 | 2209 | return OFPERR_OFPPMFC_BAD_HW_ADDR; |
064af421 | 2210 | } else { |
9e1fd49b BP |
2211 | update_port_config(port, pm.config, pm.mask); |
2212 | if (pm.advertise) { | |
2213 | netdev_set_advertisements(port->netdev, pm.advertise); | |
064af421 BP |
2214 | } |
2215 | } | |
2216 | return 0; | |
2217 | } | |
2218 | ||
90bf1e07 | 2219 | static enum ofperr |
3269c562 | 2220 | handle_desc_stats_request(struct ofconn *ofconn, |
982697a4 | 2221 | const struct ofp_header *request) |
064af421 | 2222 | { |
64ff1d96 | 2223 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 BP |
2224 | struct ofp_desc_stats *ods; |
2225 | struct ofpbuf *msg; | |
2226 | ||
982697a4 BP |
2227 | msg = ofpraw_alloc_stats_reply(request, 0); |
2228 | ods = ofpbuf_put_zeros(msg, sizeof *ods); | |
5a719c38 JP |
2229 | ovs_strlcpy(ods->mfr_desc, p->mfr_desc, sizeof ods->mfr_desc); |
2230 | ovs_strlcpy(ods->hw_desc, p->hw_desc, sizeof ods->hw_desc); | |
2231 | ovs_strlcpy(ods->sw_desc, p->sw_desc, sizeof ods->sw_desc); | |
2232 | ovs_strlcpy(ods->serial_num, p->serial_desc, sizeof ods->serial_num); | |
2233 | ovs_strlcpy(ods->dp_desc, p->dp_desc, sizeof ods->dp_desc); | |
b0421aa2 | 2234 | ofconn_send_reply(ofconn, msg); |
064af421 BP |
2235 | |
2236 | return 0; | |
2237 | } | |
2238 | ||
90bf1e07 | 2239 | static enum ofperr |
3269c562 | 2240 | handle_table_stats_request(struct ofconn *ofconn, |
982697a4 | 2241 | const struct ofp_header *request) |
064af421 | 2242 | { |
64ff1d96 | 2243 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
e2b9ac44 | 2244 | struct ofp10_table_stats *ots; |
064af421 | 2245 | struct ofpbuf *msg; |
6c1491fb | 2246 | size_t i; |
064af421 | 2247 | |
982697a4 | 2248 | msg = ofpraw_alloc_stats_reply(request, sizeof *ots * p->n_tables); |
6c1491fb BP |
2249 | ots = ofpbuf_put_zeros(msg, sizeof *ots * p->n_tables); |
2250 | for (i = 0; i < p->n_tables; i++) { | |
2251 | ots[i].table_id = i; | |
35aa7a21 | 2252 | sprintf(ots[i].name, "table%zu", i); |
eec25dc1 | 2253 | ots[i].wildcards = htonl(OFPFW10_ALL); |
6c1491fb | 2254 | ots[i].max_entries = htonl(1000000); /* An arbitrary big number. */ |
d0918789 | 2255 | ots[i].active_count = htonl(classifier_count(&p->tables[i].cls)); |
6c1491fb | 2256 | } |
064af421 | 2257 | |
6c1491fb | 2258 | p->ofproto_class->get_tables(p, ots); |
064af421 | 2259 | |
254750ce BP |
2260 | for (i = 0; i < p->n_tables; i++) { |
2261 | const struct oftable *table = &p->tables[i]; | |
2262 | ||
2263 | if (table->name) { | |
2264 | ovs_strzcpy(ots[i].name, table->name, sizeof ots[i].name); | |
2265 | } | |
2266 | ||
2267 | if (table->max_flows < ntohl(ots[i].max_entries)) { | |
2268 | ots[i].max_entries = htonl(table->max_flows); | |
2269 | } | |
2270 | } | |
2271 | ||
b0421aa2 | 2272 | ofconn_send_reply(ofconn, msg); |
064af421 BP |
2273 | return 0; |
2274 | } | |
2275 | ||
abaad8cf | 2276 | static void |
63f2140a | 2277 | append_port_stat(struct ofport *port, struct list *replies) |
abaad8cf JP |
2278 | { |
2279 | struct netdev_stats stats; | |
e2b9ac44 | 2280 | struct ofp10_port_stats *ops; |
abaad8cf | 2281 | |
d295e8e9 JP |
2282 | /* Intentionally ignore return value, since errors will set |
2283 | * 'stats' to all-1s, which is correct for OpenFlow, and | |
abaad8cf | 2284 | * netdev_get_stats() will log errors. */ |
6527c598 | 2285 | ofproto_port_get_stats(port, &stats); |
abaad8cf | 2286 | |
982697a4 | 2287 | ops = ofpmp_append(replies, sizeof *ops); |
9e1fd49b | 2288 | ops->port_no = htons(port->pp.port_no); |
abaad8cf | 2289 | memset(ops->pad, 0, sizeof ops->pad); |
c4617b3c BP |
2290 | put_32aligned_be64(&ops->rx_packets, htonll(stats.rx_packets)); |
2291 | put_32aligned_be64(&ops->tx_packets, htonll(stats.tx_packets)); | |
2292 | put_32aligned_be64(&ops->rx_bytes, htonll(stats.rx_bytes)); | |
2293 | put_32aligned_be64(&ops->tx_bytes, htonll(stats.tx_bytes)); | |
2294 | put_32aligned_be64(&ops->rx_dropped, htonll(stats.rx_dropped)); | |
2295 | put_32aligned_be64(&ops->tx_dropped, htonll(stats.tx_dropped)); | |
2296 | put_32aligned_be64(&ops->rx_errors, htonll(stats.rx_errors)); | |
2297 | put_32aligned_be64(&ops->tx_errors, htonll(stats.tx_errors)); | |
2298 | put_32aligned_be64(&ops->rx_frame_err, htonll(stats.rx_frame_errors)); | |
2299 | put_32aligned_be64(&ops->rx_over_err, htonll(stats.rx_over_errors)); | |
2300 | put_32aligned_be64(&ops->rx_crc_err, htonll(stats.rx_crc_errors)); | |
2301 | put_32aligned_be64(&ops->collisions, htonll(stats.collisions)); | |
abaad8cf JP |
2302 | } |
2303 | ||
90bf1e07 | 2304 | static enum ofperr |
63f2140a | 2305 | handle_port_stats_request(struct ofconn *ofconn, |
982697a4 | 2306 | const struct ofp_header *request) |
064af421 | 2307 | { |
64ff1d96 | 2308 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
e2b9ac44 | 2309 | const struct ofp10_port_stats_request *psr = ofpmsg_body(request); |
064af421 | 2310 | struct ofport *port; |
63f2140a | 2311 | struct list replies; |
064af421 | 2312 | |
982697a4 | 2313 | ofpmp_init(&replies, request); |
abaad8cf | 2314 | if (psr->port_no != htons(OFPP_NONE)) { |
abe529af | 2315 | port = ofproto_get_port(p, ntohs(psr->port_no)); |
abaad8cf | 2316 | if (port) { |
63f2140a | 2317 | append_port_stat(port, &replies); |
abaad8cf JP |
2318 | } |
2319 | } else { | |
4e8e4213 | 2320 | HMAP_FOR_EACH (port, hmap_node, &p->ports) { |
63f2140a | 2321 | append_port_stat(port, &replies); |
abaad8cf | 2322 | } |
064af421 BP |
2323 | } |
2324 | ||
63f2140a | 2325 | ofconn_send_replies(ofconn, &replies); |
064af421 BP |
2326 | return 0; |
2327 | } | |
2328 | ||
2be393ed JP |
2329 | static enum ofperr |
2330 | handle_port_desc_stats_request(struct ofconn *ofconn, | |
982697a4 | 2331 | const struct ofp_header *request) |
2be393ed JP |
2332 | { |
2333 | struct ofproto *p = ofconn_get_ofproto(ofconn); | |
2e3fa633 | 2334 | enum ofp_version version; |
2be393ed JP |
2335 | struct ofport *port; |
2336 | struct list replies; | |
2337 | ||
982697a4 | 2338 | ofpmp_init(&replies, request); |
2be393ed | 2339 | |
2e3fa633 | 2340 | version = ofputil_protocol_to_ofp_version(ofconn_get_protocol(ofconn)); |
2be393ed | 2341 | HMAP_FOR_EACH (port, hmap_node, &p->ports) { |
2e3fa633 | 2342 | ofputil_append_port_desc_stats_reply(version, &port->pp, &replies); |
2be393ed JP |
2343 | } |
2344 | ||
2345 | ofconn_send_replies(ofconn, &replies); | |
2346 | return 0; | |
2347 | } | |
2348 | ||
c6ebb8fb | 2349 | static void |
f27f2134 BP |
2350 | calc_flow_duration__(long long int start, long long int now, |
2351 | uint32_t *sec, uint32_t *nsec) | |
c6ebb8fb | 2352 | { |
f27f2134 | 2353 | long long int msecs = now - start; |
588cd7b5 BP |
2354 | *sec = msecs / 1000; |
2355 | *nsec = (msecs % 1000) * (1000 * 1000); | |
2356 | } | |
2357 | ||
48266274 BP |
2358 | /* Checks whether 'table_id' is 0xff or a valid table ID in 'ofproto'. Returns |
2359 | * 0 if 'table_id' is OK, otherwise an OpenFlow error code. */ | |
90bf1e07 | 2360 | static enum ofperr |
48266274 BP |
2361 | check_table_id(const struct ofproto *ofproto, uint8_t table_id) |
2362 | { | |
2363 | return (table_id == 0xff || table_id < ofproto->n_tables | |
2364 | ? 0 | |
90bf1e07 | 2365 | : OFPERR_NXBRC_BAD_TABLE_ID); |
48266274 BP |
2366 | |
2367 | } | |
2368 | ||
5c67e4af | 2369 | static struct oftable * |
d4ce8a49 | 2370 | next_visible_table(const struct ofproto *ofproto, uint8_t table_id) |
5c67e4af BP |
2371 | { |
2372 | struct oftable *table; | |
2373 | ||
2374 | for (table = &ofproto->tables[table_id]; | |
2375 | table < &ofproto->tables[ofproto->n_tables]; | |
2376 | table++) { | |
2377 | if (!(table->flags & OFTABLE_HIDDEN)) { | |
2378 | return table; | |
2379 | } | |
2380 | } | |
2381 | ||
2382 | return NULL; | |
2383 | } | |
2384 | ||
d0918789 | 2385 | static struct oftable * |
d4ce8a49 | 2386 | first_matching_table(const struct ofproto *ofproto, uint8_t table_id) |
064af421 | 2387 | { |
6c1491fb | 2388 | if (table_id == 0xff) { |
5c67e4af | 2389 | return next_visible_table(ofproto, 0); |
6c1491fb BP |
2390 | } else if (table_id < ofproto->n_tables) { |
2391 | return &ofproto->tables[table_id]; | |
a02e5331 | 2392 | } else { |
6c1491fb | 2393 | return NULL; |
a02e5331 | 2394 | } |
064af421 BP |
2395 | } |
2396 | ||
d0918789 | 2397 | static struct oftable * |
d4ce8a49 BP |
2398 | next_matching_table(const struct ofproto *ofproto, |
2399 | const struct oftable *table, uint8_t table_id) | |
6c1491fb | 2400 | { |
5c67e4af BP |
2401 | return (table_id == 0xff |
2402 | ? next_visible_table(ofproto, (table - ofproto->tables) + 1) | |
6c1491fb BP |
2403 | : NULL); |
2404 | } | |
2405 | ||
d0918789 | 2406 | /* Assigns TABLE to each oftable, in turn, that matches TABLE_ID in OFPROTO: |
6c1491fb BP |
2407 | * |
2408 | * - If TABLE_ID is 0xff, this iterates over every classifier table in | |
5c67e4af | 2409 | * OFPROTO, skipping tables marked OFTABLE_HIDDEN. |
6c1491fb BP |
2410 | * |
2411 | * - If TABLE_ID is the number of a table in OFPROTO, then the loop iterates | |
5c67e4af BP |
2412 | * only once, for that table. (This can be used to access tables marked |
2413 | * OFTABLE_HIDDEN.) | |
6c1491fb | 2414 | * |
48266274 BP |
2415 | * - Otherwise, TABLE_ID isn't valid for OFPROTO, so the loop won't be |
2416 | * entered at all. (Perhaps you should have validated TABLE_ID with | |
2417 | * check_table_id().) | |
6c1491fb BP |
2418 | * |
2419 | * All parameters are evaluated multiple times. | |
2420 | */ | |
d0918789 BP |
2421 | #define FOR_EACH_MATCHING_TABLE(TABLE, TABLE_ID, OFPROTO) \ |
2422 | for ((TABLE) = first_matching_table(OFPROTO, TABLE_ID); \ | |
2423 | (TABLE) != NULL; \ | |
2424 | (TABLE) = next_matching_table(OFPROTO, TABLE, TABLE_ID)) | |
6c1491fb | 2425 | |
9ed18e46 BP |
2426 | /* Searches 'ofproto' for rules in table 'table_id' (or in all tables, if |
2427 | * 'table_id' is 0xff) that match 'match' in the "loose" way required for | |
2428 | * OpenFlow OFPFC_MODIFY and OFPFC_DELETE requests and puts them on list | |
2429 | * 'rules'. | |
2430 | * | |
2431 | * If 'out_port' is anything other than OFPP_NONE, then only rules that output | |
2432 | * to 'out_port' are included. | |
2433 | * | |
2434 | * Hidden rules are always omitted. | |
2435 | * | |
2436 | * Returns 0 on success, otherwise an OpenFlow error code. */ | |
90bf1e07 | 2437 | static enum ofperr |
9ed18e46 | 2438 | collect_rules_loose(struct ofproto *ofproto, uint8_t table_id, |
81a76618 | 2439 | const struct match *match, |
e729e793 JP |
2440 | ovs_be64 cookie, ovs_be64 cookie_mask, |
2441 | uint16_t out_port, struct list *rules) | |
9ed18e46 | 2442 | { |
d0918789 | 2443 | struct oftable *table; |
81a76618 | 2444 | struct cls_rule cr; |
90bf1e07 | 2445 | enum ofperr error; |
48266274 BP |
2446 | |
2447 | error = check_table_id(ofproto, table_id); | |
2448 | if (error) { | |
2449 | return error; | |
2450 | } | |
9ed18e46 BP |
2451 | |
2452 | list_init(rules); | |
81a76618 | 2453 | cls_rule_init(&cr, match, 0); |
d0918789 | 2454 | FOR_EACH_MATCHING_TABLE (table, table_id, ofproto) { |
9ed18e46 BP |
2455 | struct cls_cursor cursor; |
2456 | struct rule *rule; | |
2457 | ||
81a76618 | 2458 | cls_cursor_init(&cursor, &table->cls, &cr); |
9ed18e46 | 2459 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { |
7ee20df1 | 2460 | if (rule->pending) { |
48d28ac1 BP |
2461 | error = OFPROTO_POSTPONE; |
2462 | goto exit; | |
7ee20df1 | 2463 | } |
2b07c8b1 BP |
2464 | if (!ofproto_rule_is_hidden(rule) |
2465 | && ofproto_rule_has_out_port(rule, out_port) | |
e729e793 | 2466 | && !((rule->flow_cookie ^ cookie) & cookie_mask)) { |
9ed18e46 BP |
2467 | list_push_back(rules, &rule->ofproto_node); |
2468 | } | |
2469 | } | |
2470 | } | |
48d28ac1 BP |
2471 | |
2472 | exit: | |
2473 | cls_rule_destroy(&cr); | |
2474 | return error; | |
9ed18e46 BP |
2475 | } |
2476 | ||
2477 | /* Searches 'ofproto' for rules in table 'table_id' (or in all tables, if | |
2478 | * 'table_id' is 0xff) that match 'match' in the "strict" way required for | |
2479 | * OpenFlow OFPFC_MODIFY_STRICT and OFPFC_DELETE_STRICT requests and puts them | |
2480 | * on list 'rules'. | |
2481 | * | |
2482 | * If 'out_port' is anything other than OFPP_NONE, then only rules that output | |
2483 | * to 'out_port' are included. | |
2484 | * | |
2485 | * Hidden rules are always omitted. | |
2486 | * | |
2487 | * Returns 0 on success, otherwise an OpenFlow error code. */ | |
90bf1e07 | 2488 | static enum ofperr |
9ed18e46 | 2489 | collect_rules_strict(struct ofproto *ofproto, uint8_t table_id, |
81a76618 | 2490 | const struct match *match, unsigned int priority, |
e729e793 JP |
2491 | ovs_be64 cookie, ovs_be64 cookie_mask, |
2492 | uint16_t out_port, struct list *rules) | |
9ed18e46 | 2493 | { |
d0918789 | 2494 | struct oftable *table; |
81a76618 | 2495 | struct cls_rule cr; |
48266274 BP |
2496 | int error; |
2497 | ||
2498 | error = check_table_id(ofproto, table_id); | |
2499 | if (error) { | |
2500 | return error; | |
2501 | } | |
9ed18e46 BP |
2502 | |
2503 | list_init(rules); | |
81a76618 | 2504 | cls_rule_init(&cr, match, priority); |
d0918789 | 2505 | FOR_EACH_MATCHING_TABLE (table, table_id, ofproto) { |
9ed18e46 BP |
2506 | struct rule *rule; |
2507 | ||
d0918789 | 2508 | rule = rule_from_cls_rule(classifier_find_rule_exactly(&table->cls, |
81a76618 | 2509 | &cr)); |
9ed18e46 | 2510 | if (rule) { |
7ee20df1 | 2511 | if (rule->pending) { |
48d28ac1 BP |
2512 | error = OFPROTO_POSTPONE; |
2513 | goto exit; | |
7ee20df1 | 2514 | } |
2b07c8b1 BP |
2515 | if (!ofproto_rule_is_hidden(rule) |
2516 | && ofproto_rule_has_out_port(rule, out_port) | |
e729e793 | 2517 | && !((rule->flow_cookie ^ cookie) & cookie_mask)) { |
9ed18e46 BP |
2518 | list_push_back(rules, &rule->ofproto_node); |
2519 | } | |
2520 | } | |
2521 | } | |
48d28ac1 BP |
2522 | |
2523 | exit: | |
2524 | cls_rule_destroy(&cr); | |
9ed18e46 BP |
2525 | return 0; |
2526 | } | |
2527 | ||
f27f2134 BP |
2528 | /* Returns 'age_ms' (a duration in milliseconds), converted to seconds and |
2529 | * forced into the range of a uint16_t. */ | |
2530 | static int | |
2531 | age_secs(long long int age_ms) | |
2532 | { | |
2533 | return (age_ms < 0 ? 0 | |
2534 | : age_ms >= UINT16_MAX * 1000 ? UINT16_MAX | |
2535 | : (unsigned int) age_ms / 1000); | |
2536 | } | |
2537 | ||
90bf1e07 | 2538 | static enum ofperr |
63f2140a | 2539 | handle_flow_stats_request(struct ofconn *ofconn, |
982697a4 | 2540 | const struct ofp_header *request) |
064af421 | 2541 | { |
64ff1d96 | 2542 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
81d1ea94 | 2543 | struct ofputil_flow_stats_request fsr; |
63f2140a | 2544 | struct list replies; |
9ed18e46 BP |
2545 | struct list rules; |
2546 | struct rule *rule; | |
90bf1e07 | 2547 | enum ofperr error; |
09246b99 | 2548 | |
982697a4 | 2549 | error = ofputil_decode_flow_stats_request(&fsr, request); |
09246b99 BP |
2550 | if (error) { |
2551 | return error; | |
2552 | } | |
2553 | ||
9ed18e46 | 2554 | error = collect_rules_loose(ofproto, fsr.table_id, &fsr.match, |
e729e793 | 2555 | fsr.cookie, fsr.cookie_mask, |
9ed18e46 BP |
2556 | fsr.out_port, &rules); |
2557 | if (error) { | |
2558 | return error; | |
2559 | } | |
5ecc9d81 | 2560 | |
982697a4 | 2561 | ofpmp_init(&replies, request); |
9ed18e46 | 2562 | LIST_FOR_EACH (rule, ofproto_node, &rules) { |
f27f2134 | 2563 | long long int now = time_msec(); |
9ed18e46 BP |
2564 | struct ofputil_flow_stats fs; |
2565 | ||
81a76618 BP |
2566 | fs.match = rule->cr.match; |
2567 | fs.priority = rule->cr.priority; | |
9ed18e46 BP |
2568 | fs.cookie = rule->flow_cookie; |
2569 | fs.table_id = rule->table_id; | |
f27f2134 | 2570 | calc_flow_duration__(rule->created, now, &fs.duration_sec, |
9ed18e46 BP |
2571 | &fs.duration_nsec); |
2572 | fs.idle_timeout = rule->idle_timeout; | |
2573 | fs.hard_timeout = rule->hard_timeout; | |
f27f2134 BP |
2574 | fs.idle_age = age_secs(now - rule->used); |
2575 | fs.hard_age = age_secs(now - rule->modified); | |
9ed18e46 BP |
2576 | ofproto->ofproto_class->rule_get_stats(rule, &fs.packet_count, |
2577 | &fs.byte_count); | |
f25d0cf3 BP |
2578 | fs.ofpacts = rule->ofpacts; |
2579 | fs.ofpacts_len = rule->ofpacts_len; | |
9ed18e46 | 2580 | ofputil_append_flow_stats_reply(&fs, &replies); |
3c4486a5 | 2581 | } |
63f2140a | 2582 | ofconn_send_replies(ofconn, &replies); |
5ecc9d81 | 2583 | |
09246b99 BP |
2584 | return 0; |
2585 | } | |
2586 | ||
4f2cad2c | 2587 | static void |
3394b5b6 | 2588 | flow_stats_ds(struct rule *rule, struct ds *results) |
4f2cad2c | 2589 | { |
4f2cad2c | 2590 | uint64_t packet_count, byte_count; |
4f2cad2c | 2591 | |
abe529af BP |
2592 | rule->ofproto->ofproto_class->rule_get_stats(rule, |
2593 | &packet_count, &byte_count); | |
4f2cad2c | 2594 | |
6c1491fb BP |
2595 | if (rule->table_id != 0) { |
2596 | ds_put_format(results, "table_id=%"PRIu8", ", rule->table_id); | |
2597 | } | |
4f2cad2c JP |
2598 | ds_put_format(results, "duration=%llds, ", |
2599 | (time_msec() - rule->created) / 1000); | |
52ae00b3 | 2600 | ds_put_format(results, "priority=%u, ", rule->cr.priority); |
4f2cad2c JP |
2601 | ds_put_format(results, "n_packets=%"PRIu64", ", packet_count); |
2602 | ds_put_format(results, "n_bytes=%"PRIu64", ", byte_count); | |
cb833cf6 | 2603 | cls_rule_format(&rule->cr, results); |
a5df0e72 | 2604 | ds_put_char(results, ','); |
f25d0cf3 BP |
2605 | if (rule->ofpacts_len > 0) { |
2606 | ofpacts_format(rule->ofpacts, rule->ofpacts_len, results); | |
3c8552c1 JP |
2607 | } else { |
2608 | ds_put_cstr(results, "drop"); | |
3dffcf07 | 2609 | } |
4f2cad2c JP |
2610 | ds_put_cstr(results, "\n"); |
2611 | } | |
2612 | ||
d295e8e9 | 2613 | /* Adds a pretty-printed description of all flows to 'results', including |
ee8b231c | 2614 | * hidden flows (e.g., set up by in-band control). */ |
4f2cad2c JP |
2615 | void |
2616 | ofproto_get_all_flows(struct ofproto *p, struct ds *results) | |
2617 | { | |
d0918789 | 2618 | struct oftable *table; |
6c1491fb | 2619 | |
d0918789 | 2620 | OFPROTO_FOR_EACH_TABLE (table, p) { |
6c1491fb BP |
2621 | struct cls_cursor cursor; |
2622 | struct rule *rule; | |
064af421 | 2623 | |
d0918789 | 2624 | cls_cursor_init(&cursor, &table->cls, NULL); |
6c1491fb BP |
2625 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { |
2626 | flow_stats_ds(rule, results); | |
2627 | } | |
064af421 | 2628 | } |
064af421 BP |
2629 | } |
2630 | ||
b5827b24 BP |
2631 | /* Obtains the NetFlow engine type and engine ID for 'ofproto' into |
2632 | * '*engine_type' and '*engine_id', respectively. */ | |
2633 | void | |
2634 | ofproto_get_netflow_ids(const struct ofproto *ofproto, | |
2635 | uint8_t *engine_type, uint8_t *engine_id) | |
2636 | { | |
abe529af | 2637 | ofproto->ofproto_class->get_netflow_ids(ofproto, engine_type, engine_id); |
b5827b24 BP |
2638 | } |
2639 | ||
b9380396 EJ |
2640 | /* Checks the fault status of CFM for 'ofp_port' within 'ofproto'. Returns a |
2641 | * bitmask of 'cfm_fault_reason's to indicate a CFM fault (generally | |
2642 | * indicating a connectivity problem). Returns zero if CFM is not faulted, | |
1c0333b6 | 2643 | * and -1 if CFM is not enabled on 'ofp_port'. */ |
a5610457 EJ |
2644 | int |
2645 | ofproto_port_get_cfm_fault(const struct ofproto *ofproto, uint16_t ofp_port) | |
2646 | { | |
2647 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
2648 | return (ofport && ofproto->ofproto_class->get_cfm_fault | |
2649 | ? ofproto->ofproto_class->get_cfm_fault(ofport) | |
2650 | : -1); | |
2651 | } | |
2652 | ||
1c0333b6 EJ |
2653 | /* Checks the operational status reported by the remote CFM endpoint of |
2654 | * 'ofp_port' Returns 1 if operationally up, 0 if operationally down, and -1 | |
2655 | * if CFM is not enabled on 'ofp_port' or does not support operational status. | |
2656 | */ | |
2657 | int | |
2658 | ofproto_port_get_cfm_opup(const struct ofproto *ofproto, uint16_t ofp_port) | |
2659 | { | |
2660 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
2661 | return (ofport && ofproto->ofproto_class->get_cfm_opup | |
2662 | ? ofproto->ofproto_class->get_cfm_opup(ofport) | |
2663 | : -1); | |
2664 | } | |
2665 | ||
1de11730 EJ |
2666 | /* Gets the MPIDs of the remote maintenance points broadcasting to 'ofp_port' |
2667 | * within 'ofproto'. Populates 'rmps' with an array of MPIDs owned by | |
2668 | * 'ofproto', and 'n_rmps' with the number of MPIDs in 'rmps'. Returns a | |
2669 | * number less than 0 if CFM is not enabled on 'ofp_port'. */ | |
2670 | int | |
2671 | ofproto_port_get_cfm_remote_mpids(const struct ofproto *ofproto, | |
2672 | uint16_t ofp_port, const uint64_t **rmps, | |
2673 | size_t *n_rmps) | |
2674 | { | |
2675 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
2676 | ||
2677 | *rmps = NULL; | |
2678 | *n_rmps = 0; | |
2679 | return (ofport && ofproto->ofproto_class->get_cfm_remote_mpids | |
2680 | ? ofproto->ofproto_class->get_cfm_remote_mpids(ofport, rmps, | |
2681 | n_rmps) | |
2682 | : -1); | |
2683 | } | |
2684 | ||
3967a833 MM |
2685 | /* Checks the health of the CFM for 'ofp_port' within 'ofproto'. Returns an |
2686 | * integer value between 0 and 100 to indicate the health of the port as a | |
2687 | * percentage which is the average of cfm health of all the remote_mpids or | |
2688 | * returns -1 if CFM is not enabled on 'ofport'. */ | |
2689 | int | |
2690 | ofproto_port_get_cfm_health(const struct ofproto *ofproto, uint16_t ofp_port) | |
2691 | { | |
2692 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
2693 | return (ofport && ofproto->ofproto_class->get_cfm_health | |
2694 | ? ofproto->ofproto_class->get_cfm_health(ofport) | |
2695 | : -1); | |
2696 | } | |
2697 | ||
90bf1e07 | 2698 | static enum ofperr |
76c93b22 | 2699 | handle_aggregate_stats_request(struct ofconn *ofconn, |
982697a4 | 2700 | const struct ofp_header *oh) |
27d34fce | 2701 | { |
76c93b22 | 2702 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
81d1ea94 | 2703 | struct ofputil_flow_stats_request request; |
76c93b22 | 2704 | struct ofputil_aggregate_stats stats; |
5e9d0469 | 2705 | bool unknown_packets, unknown_bytes; |
76c93b22 | 2706 | struct ofpbuf *reply; |
9ed18e46 BP |
2707 | struct list rules; |
2708 | struct rule *rule; | |
90bf1e07 | 2709 | enum ofperr error; |
27d34fce | 2710 | |
982697a4 | 2711 | error = ofputil_decode_flow_stats_request(&request, oh); |
76c93b22 BP |
2712 | if (error) { |
2713 | return error; | |
2714 | } | |
5ecc9d81 | 2715 | |
9ed18e46 | 2716 | error = collect_rules_loose(ofproto, request.table_id, &request.match, |
e729e793 | 2717 | request.cookie, request.cookie_mask, |
9ed18e46 BP |
2718 | request.out_port, &rules); |
2719 | if (error) { | |
2720 | return error; | |
2721 | } | |
3c4486a5 | 2722 | |
9ed18e46 | 2723 | memset(&stats, 0, sizeof stats); |
5e9d0469 | 2724 | unknown_packets = unknown_bytes = false; |
9ed18e46 BP |
2725 | LIST_FOR_EACH (rule, ofproto_node, &rules) { |
2726 | uint64_t packet_count; | |
2727 | uint64_t byte_count; | |
5ecc9d81 | 2728 | |
9ed18e46 BP |
2729 | ofproto->ofproto_class->rule_get_stats(rule, &packet_count, |
2730 | &byte_count); | |
5ecc9d81 | 2731 | |
5e9d0469 BP |
2732 | if (packet_count == UINT64_MAX) { |
2733 | unknown_packets = true; | |
2734 | } else { | |
2735 | stats.packet_count += packet_count; | |
2736 | } | |
2737 | ||
2738 | if (byte_count == UINT64_MAX) { | |
2739 | unknown_bytes = true; | |
2740 | } else { | |
2741 | stats.byte_count += byte_count; | |
2742 | } | |
2743 | ||
9ed18e46 | 2744 | stats.flow_count++; |
3c4486a5 | 2745 | } |
5e9d0469 BP |
2746 | if (unknown_packets) { |
2747 | stats.packet_count = UINT64_MAX; | |
2748 | } | |
2749 | if (unknown_bytes) { | |
2750 | stats.byte_count = UINT64_MAX; | |
2751 | } | |
27d34fce | 2752 | |
982697a4 | 2753 | reply = ofputil_encode_aggregate_stats_reply(&stats, oh); |
76c93b22 | 2754 | ofconn_send_reply(ofconn, reply); |
09246b99 BP |
2755 | |
2756 | return 0; | |
2757 | } | |
2758 | ||
c1c9c9c4 | 2759 | struct queue_stats_cbdata { |
ca0f572c | 2760 | struct ofport *ofport; |
63f2140a | 2761 | struct list replies; |
c1c9c9c4 BP |
2762 | }; |
2763 | ||
2764 | static void | |
db9220c3 | 2765 | put_queue_stats(struct queue_stats_cbdata *cbdata, uint32_t queue_id, |
c1c9c9c4 BP |
2766 | const struct netdev_queue_stats *stats) |
2767 | { | |
e2b9ac44 | 2768 | struct ofp10_queue_stats *reply; |
c1c9c9c4 | 2769 | |
982697a4 | 2770 | reply = ofpmp_append(&cbdata->replies, sizeof *reply); |
9e1fd49b | 2771 | reply->port_no = htons(cbdata->ofport->pp.port_no); |
c1c9c9c4 BP |
2772 | memset(reply->pad, 0, sizeof reply->pad); |
2773 | reply->queue_id = htonl(queue_id); | |
c4617b3c BP |
2774 | put_32aligned_be64(&reply->tx_bytes, htonll(stats->tx_bytes)); |
2775 | put_32aligned_be64(&reply->tx_packets, htonll(stats->tx_packets)); | |
2776 | put_32aligned_be64(&reply->tx_errors, htonll(stats->tx_errors)); | |
c1c9c9c4 BP |
2777 | } |
2778 | ||
2779 | static void | |
db9220c3 | 2780 | handle_queue_stats_dump_cb(uint32_t queue_id, |
c1c9c9c4 BP |
2781 | struct netdev_queue_stats *stats, |
2782 | void *cbdata_) | |
2783 | { | |
2784 | struct queue_stats_cbdata *cbdata = cbdata_; | |
2785 | ||
2786 | put_queue_stats(cbdata, queue_id, stats); | |
2787 | } | |
2788 | ||
0414d158 | 2789 | static enum ofperr |
ca0f572c | 2790 | handle_queue_stats_for_port(struct ofport *port, uint32_t queue_id, |
c1c9c9c4 BP |
2791 | struct queue_stats_cbdata *cbdata) |
2792 | { | |
ca0f572c | 2793 | cbdata->ofport = port; |
c1c9c9c4 BP |
2794 | if (queue_id == OFPQ_ALL) { |
2795 | netdev_dump_queue_stats(port->netdev, | |
2796 | handle_queue_stats_dump_cb, cbdata); | |
2797 | } else { | |
2798 | struct netdev_queue_stats stats; | |
2799 | ||
1ac788f6 BP |
2800 | if (!netdev_get_queue_stats(port->netdev, queue_id, &stats)) { |
2801 | put_queue_stats(cbdata, queue_id, &stats); | |
0414d158 BP |
2802 | } else { |
2803 | return OFPERR_OFPQOFC_BAD_QUEUE; | |
1ac788f6 | 2804 | } |
c1c9c9c4 | 2805 | } |
0414d158 | 2806 | return 0; |
c1c9c9c4 BP |
2807 | } |
2808 | ||
90bf1e07 | 2809 | static enum ofperr |
63f2140a | 2810 | handle_queue_stats_request(struct ofconn *ofconn, |
982697a4 | 2811 | const struct ofp_header *rq) |
c1c9c9c4 | 2812 | { |
64ff1d96 | 2813 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
e2b9ac44 | 2814 | const struct ofp10_queue_stats_request *qsr = ofpmsg_body(rq); |
c1c9c9c4 | 2815 | struct queue_stats_cbdata cbdata; |
c1c9c9c4 | 2816 | unsigned int port_no; |
0414d158 | 2817 | struct ofport *port; |
c1c9c9c4 | 2818 | uint32_t queue_id; |
0414d158 | 2819 | enum ofperr error; |
c1c9c9c4 | 2820 | |
c1c9c9c4 BP |
2821 | COVERAGE_INC(ofproto_queue_req); |
2822 | ||
982697a4 | 2823 | ofpmp_init(&cbdata.replies, rq); |
c1c9c9c4 BP |
2824 | |
2825 | port_no = ntohs(qsr->port_no); | |
2826 | queue_id = ntohl(qsr->queue_id); | |
2827 | if (port_no == OFPP_ALL) { | |
0414d158 | 2828 | error = OFPERR_OFPQOFC_BAD_QUEUE; |
4e8e4213 | 2829 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
0414d158 BP |
2830 | if (!handle_queue_stats_for_port(port, queue_id, &cbdata)) { |
2831 | error = 0; | |
2832 | } | |
c1c9c9c4 | 2833 | } |
0414d158 | 2834 | } else { |
abe529af | 2835 | port = ofproto_get_port(ofproto, port_no); |
0414d158 BP |
2836 | error = (port |
2837 | ? handle_queue_stats_for_port(port, queue_id, &cbdata) | |
2838 | : OFPERR_OFPQOFC_BAD_PORT); | |
2839 | } | |
2840 | if (!error) { | |
2841 | ofconn_send_replies(ofconn, &cbdata.replies); | |
c1c9c9c4 | 2842 | } else { |
63f2140a | 2843 | ofpbuf_list_delete(&cbdata.replies); |
c1c9c9c4 | 2844 | } |
c1c9c9c4 | 2845 | |
0414d158 | 2846 | return error; |
c1c9c9c4 | 2847 | } |
7ee20df1 BP |
2848 | |
2849 | static bool | |
2850 | is_flow_deletion_pending(const struct ofproto *ofproto, | |
2851 | const struct cls_rule *cls_rule, | |
2852 | uint8_t table_id) | |
2853 | { | |
2854 | if (!hmap_is_empty(&ofproto->deletions)) { | |
2855 | struct ofoperation *op; | |
2856 | ||
2857 | HMAP_FOR_EACH_WITH_HASH (op, hmap_node, | |
2858 | cls_rule_hash(cls_rule, table_id), | |
2859 | &ofproto->deletions) { | |
2860 | if (cls_rule_equal(cls_rule, &op->rule->cr)) { | |
2861 | return true; | |
2862 | } | |
2863 | } | |
2864 | } | |
2865 | ||
2866 | return false; | |
2867 | } | |
2868 | ||
79eee1eb BP |
2869 | /* Implements OFPFC_ADD and the cases for OFPFC_MODIFY and OFPFC_MODIFY_STRICT |
2870 | * in which no matching flow already exists in the flow table. | |
2871 | * | |
2872 | * Adds the flow specified by 'ofm', which is followed by 'n_actions' | |
75a75043 | 2873 | * ofp_actions, to the ofproto's flow table. Returns 0 on success, an OpenFlow |
90bf1e07 BP |
2874 | * error code on failure, or OFPROTO_POSTPONE if the operation cannot be |
2875 | * initiated now but may be retried later. | |
79eee1eb | 2876 | * |
f25d0cf3 BP |
2877 | * Upon successful return, takes ownership of 'fm->ofpacts'. On failure, |
2878 | * ownership remains with the caller. | |
2879 | * | |
79eee1eb BP |
2880 | * 'ofconn' is used to retrieve the packet buffer specified in ofm->buffer_id, |
2881 | * if any. */ | |
90bf1e07 | 2882 | static enum ofperr |
a9a2da38 | 2883 | add_flow(struct ofproto *ofproto, struct ofconn *ofconn, |
1b9d6420 | 2884 | const struct ofputil_flow_mod *fm, const struct ofp_header *request) |
064af421 | 2885 | { |
d0918789 | 2886 | struct oftable *table; |
7ee20df1 BP |
2887 | struct ofopgroup *group; |
2888 | struct rule *victim; | |
81a76618 | 2889 | struct cls_rule cr; |
064af421 | 2890 | struct rule *rule; |
064af421 BP |
2891 | int error; |
2892 | ||
48266274 BP |
2893 | error = check_table_id(ofproto, fm->table_id); |
2894 | if (error) { | |
2895 | return error; | |
2896 | } | |
2897 | ||
7ee20df1 BP |
2898 | /* Pick table. */ |
2899 | if (fm->table_id == 0xff) { | |
2900 | uint8_t table_id; | |
13521ff5 | 2901 | if (ofproto->ofproto_class->rule_choose_table) { |
81a76618 BP |
2902 | error = ofproto->ofproto_class->rule_choose_table(ofproto, |
2903 | &fm->match, | |
7ee20df1 BP |
2904 | &table_id); |
2905 | if (error) { | |
2906 | return error; | |
2907 | } | |
2908 | assert(table_id < ofproto->n_tables); | |
2909 | table = &ofproto->tables[table_id]; | |
2910 | } else { | |
2911 | table = &ofproto->tables[0]; | |
2912 | } | |
2913 | } else if (fm->table_id < ofproto->n_tables) { | |
2914 | table = &ofproto->tables[fm->table_id]; | |
2915 | } else { | |
90bf1e07 | 2916 | return OFPERR_NXFMFC_BAD_TABLE_ID; |
064af421 BP |
2917 | } |
2918 | ||
5c67e4af BP |
2919 | if (table->flags & OFTABLE_READONLY) { |
2920 | return OFPERR_OFPBRC_EPERM; | |
2921 | } | |
2922 | ||
81a76618 BP |
2923 | /* Allocate new rule and initialize classifier rule. */ |
2924 | rule = ofproto->ofproto_class->rule_alloc(); | |
2925 | if (!rule) { | |
2926 | VLOG_WARN_RL(&rl, "%s: failed to create rule (%s)", | |
2927 | ofproto->name, strerror(error)); | |
2928 | return ENOMEM; | |
63adcc7d | 2929 | } |
81a76618 | 2930 | cls_rule_init(&rule->cr, &fm->match, fm->priority); |
63adcc7d | 2931 | |
7ee20df1 | 2932 | /* Serialize against pending deletion. */ |
81a76618 | 2933 | if (is_flow_deletion_pending(ofproto, &cr, table - ofproto->tables)) { |
48d28ac1 | 2934 | cls_rule_destroy(&rule->cr); |
81a76618 | 2935 | ofproto->ofproto_class->rule_dealloc(rule); |
7ee20df1 | 2936 | return OFPROTO_POSTPONE; |
afe75089 | 2937 | } |
064af421 | 2938 | |
81a76618 BP |
2939 | /* Check for overlap, if requested. */ |
2940 | if (fm->flags & OFPFF_CHECK_OVERLAP | |
2941 | && classifier_rule_overlaps(&table->cls, &rule->cr)) { | |
48d28ac1 | 2942 | cls_rule_destroy(&rule->cr); |
81a76618 BP |
2943 | ofproto->ofproto_class->rule_dealloc(rule); |
2944 | return OFPERR_OFPFMFC_OVERLAP; | |
7ee20df1 | 2945 | } |
81a76618 | 2946 | |
7ee20df1 | 2947 | rule->ofproto = ofproto; |
7ee20df1 | 2948 | rule->pending = NULL; |
623e1caf | 2949 | rule->flow_cookie = fm->new_cookie; |
1745cd08 | 2950 | rule->created = rule->modified = rule->used = time_msec(); |
7ee20df1 BP |
2951 | rule->idle_timeout = fm->idle_timeout; |
2952 | rule->hard_timeout = fm->hard_timeout; | |
2953 | rule->table_id = table - ofproto->tables; | |
2954 | rule->send_flow_removed = (fm->flags & OFPFF_SEND_FLOW_REM) != 0; | |
f25d0cf3 BP |
2955 | rule->ofpacts = xmemdup(fm->ofpacts, fm->ofpacts_len); |
2956 | rule->ofpacts_len = fm->ofpacts_len; | |
254750ce BP |
2957 | rule->evictable = true; |
2958 | rule->eviction_group = NULL; | |
2b07c8b1 BP |
2959 | rule->monitor_flags = 0; |
2960 | rule->add_seqno = 0; | |
2961 | rule->modify_seqno = 0; | |
7ee20df1 BP |
2962 | |
2963 | /* Insert new rule. */ | |
d0918789 | 2964 | victim = oftable_replace_rule(rule); |
5c67e4af BP |
2965 | if (victim && !rule_is_modifiable(victim)) { |
2966 | error = OFPERR_OFPBRC_EPERM; | |
2967 | } else if (victim && victim->pending) { | |
7ee20df1 BP |
2968 | error = OFPROTO_POSTPONE; |
2969 | } else { | |
a7d94793 | 2970 | struct ofoperation *op; |
254750ce BP |
2971 | struct rule *evict; |
2972 | ||
2973 | if (classifier_count(&table->cls) > table->max_flows) { | |
2974 | bool was_evictable; | |
2975 | ||
2976 | was_evictable = rule->evictable; | |
2977 | rule->evictable = false; | |
2978 | evict = choose_rule_to_evict(table); | |
2979 | rule->evictable = was_evictable; | |
2980 | ||
2981 | if (!evict) { | |
2982 | error = OFPERR_OFPFMFC_ALL_TABLES_FULL; | |
2983 | goto exit; | |
2984 | } else if (evict->pending) { | |
2985 | error = OFPROTO_POSTPONE; | |
2986 | goto exit; | |
2987 | } | |
2988 | } else { | |
2989 | evict = NULL; | |
2990 | } | |
2991 | ||
7024dffe | 2992 | group = ofopgroup_create(ofproto, ofconn, request, fm->buffer_id); |
2b07c8b1 | 2993 | op = ofoperation_create(group, rule, OFOPERATION_ADD, 0); |
a7d94793 | 2994 | op->victim = victim; |
7ee20df1 BP |
2995 | |
2996 | error = ofproto->ofproto_class->rule_construct(rule); | |
2997 | if (error) { | |
e615b0a3 | 2998 | op->group->n_running--; |
7ee20df1 | 2999 | ofoperation_destroy(rule->pending); |
254750ce BP |
3000 | } else if (evict) { |
3001 | delete_flow__(evict, group); | |
7ee20df1 BP |
3002 | } |
3003 | ofopgroup_submit(group); | |
064af421 | 3004 | } |
79eee1eb | 3005 | |
254750ce | 3006 | exit: |
7ee20df1 | 3007 | /* Back out if an error occurred. */ |
79eee1eb | 3008 | if (error) { |
d0918789 | 3009 | oftable_substitute_rule(rule, victim); |
7ee20df1 | 3010 | ofproto_rule_destroy__(rule); |
79eee1eb | 3011 | } |
7ee20df1 | 3012 | return error; |
064af421 | 3013 | } |
79eee1eb BP |
3014 | \f |
3015 | /* OFPFC_MODIFY and OFPFC_MODIFY_STRICT. */ | |
064af421 | 3016 | |
9ed18e46 BP |
3017 | /* Modifies the rules listed in 'rules', changing their actions to match those |
3018 | * in 'fm'. | |
79eee1eb | 3019 | * |
9ed18e46 BP |
3020 | * 'ofconn' is used to retrieve the packet buffer specified in fm->buffer_id, |
3021 | * if any. | |
3022 | * | |
3023 | * Returns 0 on success, otherwise an OpenFlow error code. */ | |
90bf1e07 | 3024 | static enum ofperr |
7024dffe BP |
3025 | modify_flows__(struct ofproto *ofproto, struct ofconn *ofconn, |
3026 | const struct ofputil_flow_mod *fm, | |
7ee20df1 | 3027 | const struct ofp_header *request, struct list *rules) |
79eee1eb | 3028 | { |
7ee20df1 | 3029 | struct ofopgroup *group; |
9ed18e46 | 3030 | struct rule *rule; |
5c67e4af | 3031 | enum ofperr error; |
79eee1eb | 3032 | |
7024dffe | 3033 | group = ofopgroup_create(ofproto, ofconn, request, fm->buffer_id); |
5c67e4af | 3034 | error = OFPERR_OFPBRC_EPERM; |
9ed18e46 | 3035 | LIST_FOR_EACH (rule, ofproto_node, rules) { |
08043761 BP |
3036 | struct ofoperation *op; |
3037 | bool actions_changed; | |
3038 | ovs_be64 new_cookie; | |
3039 | ||
5c67e4af BP |
3040 | if (rule_is_modifiable(rule)) { |
3041 | /* At least one rule is modifiable, don't report EPERM error. */ | |
3042 | error = 0; | |
3043 | } else { | |
3044 | continue; | |
3045 | } | |
3046 | ||
08043761 BP |
3047 | actions_changed = !ofpacts_equal(fm->ofpacts, fm->ofpacts_len, |
3048 | rule->ofpacts, rule->ofpacts_len); | |
3049 | new_cookie = (fm->new_cookie != htonll(UINT64_MAX) | |
3050 | ? fm->new_cookie | |
3051 | : rule->flow_cookie); | |
3052 | if (!actions_changed && new_cookie == rule->flow_cookie) { | |
3053 | /* No change at all. */ | |
3054 | continue; | |
3055 | } | |
a7d94793 | 3056 | |
2b07c8b1 | 3057 | op = ofoperation_create(group, rule, OFOPERATION_MODIFY, 0); |
08043761 BP |
3058 | rule->flow_cookie = new_cookie; |
3059 | if (actions_changed) { | |
a7d94793 BP |
3060 | op->ofpacts = rule->ofpacts; |
3061 | op->ofpacts_len = rule->ofpacts_len; | |
f25d0cf3 BP |
3062 | rule->ofpacts = xmemdup(fm->ofpacts, fm->ofpacts_len); |
3063 | rule->ofpacts_len = fm->ofpacts_len; | |
3064 | rule->ofproto->ofproto_class->rule_modify_actions(rule); | |
308881af | 3065 | } else { |
08043761 | 3066 | ofoperation_complete(op, 0); |
623e1caf | 3067 | } |
5ecc9d81 | 3068 | } |
7ee20df1 | 3069 | ofopgroup_submit(group); |
79eee1eb | 3070 | |
5c67e4af | 3071 | return error; |
9ed18e46 BP |
3072 | } |
3073 | ||
90bf1e07 BP |
3074 | /* Implements OFPFC_MODIFY. Returns 0 on success or an OpenFlow error code on |
3075 | * failure. | |
9ed18e46 BP |
3076 | * |
3077 | * 'ofconn' is used to retrieve the packet buffer specified in fm->buffer_id, | |
3078 | * if any. */ | |
90bf1e07 | 3079 | static enum ofperr |
7024dffe | 3080 | modify_flows_loose(struct ofproto *ofproto, struct ofconn *ofconn, |
1b9d6420 | 3081 | const struct ofputil_flow_mod *fm, |
7ee20df1 | 3082 | const struct ofp_header *request) |
9ed18e46 | 3083 | { |
9ed18e46 BP |
3084 | struct list rules; |
3085 | int error; | |
3086 | ||
81a76618 | 3087 | error = collect_rules_loose(ofproto, fm->table_id, &fm->match, |
e729e793 JP |
3088 | fm->cookie, fm->cookie_mask, |
3089 | OFPP_NONE, &rules); | |
623e1caf JP |
3090 | if (error) { |
3091 | return error; | |
3092 | } else if (list_is_empty(&rules)) { | |
3093 | return fm->cookie_mask ? 0 : add_flow(ofproto, ofconn, fm, request); | |
3094 | } else { | |
3095 | return modify_flows__(ofproto, ofconn, fm, request, &rules); | |
3096 | } | |
79eee1eb BP |
3097 | } |
3098 | ||
3099 | /* Implements OFPFC_MODIFY_STRICT. Returns 0 on success or an OpenFlow error | |
90bf1e07 | 3100 | * code on failure. |
79eee1eb | 3101 | * |
9ed18e46 | 3102 | * 'ofconn' is used to retrieve the packet buffer specified in fm->buffer_id, |
79eee1eb | 3103 | * if any. */ |
90bf1e07 | 3104 | static enum ofperr |
7024dffe | 3105 | modify_flow_strict(struct ofproto *ofproto, struct ofconn *ofconn, |
1b9d6420 | 3106 | const struct ofputil_flow_mod *fm, |
7ee20df1 | 3107 | const struct ofp_header *request) |
79eee1eb | 3108 | { |
9ed18e46 | 3109 | struct list rules; |
6c1491fb BP |
3110 | int error; |
3111 | ||
81a76618 BP |
3112 | error = collect_rules_strict(ofproto, fm->table_id, &fm->match, |
3113 | fm->priority, fm->cookie, fm->cookie_mask, | |
e729e793 | 3114 | OFPP_NONE, &rules); |
623e1caf JP |
3115 | |
3116 | if (error) { | |
3117 | return error; | |
3118 | } else if (list_is_empty(&rules)) { | |
3119 | return fm->cookie_mask ? 0 : add_flow(ofproto, ofconn, fm, request); | |
3120 | } else { | |
3121 | return list_is_singleton(&rules) ? modify_flows__(ofproto, ofconn, | |
3122 | fm, request, &rules) | |
3123 | : 0; | |
3124 | } | |
79eee1eb | 3125 | } |
9ed18e46 BP |
3126 | \f |
3127 | /* OFPFC_DELETE implementation. */ | |
79eee1eb | 3128 | |
254750ce BP |
3129 | static void |
3130 | delete_flow__(struct rule *rule, struct ofopgroup *group) | |
3131 | { | |
3132 | struct ofproto *ofproto = rule->ofproto; | |
3133 | ||
3134 | ofproto_rule_send_removed(rule, OFPRR_DELETE); | |
3135 | ||
2b07c8b1 | 3136 | ofoperation_create(group, rule, OFOPERATION_DELETE, OFPRR_DELETE); |
254750ce BP |
3137 | oftable_remove_rule(rule); |
3138 | ofproto->ofproto_class->rule_destruct(rule); | |
3139 | } | |
3140 | ||
9ed18e46 BP |
3141 | /* Deletes the rules listed in 'rules'. |
3142 | * | |
3143 | * Returns 0 on success, otherwise an OpenFlow error code. */ | |
90bf1e07 | 3144 | static enum ofperr |
7024dffe BP |
3145 | delete_flows__(struct ofproto *ofproto, struct ofconn *ofconn, |
3146 | const struct ofp_header *request, struct list *rules) | |
064af421 | 3147 | { |
9ed18e46 | 3148 | struct rule *rule, *next; |
7ee20df1 | 3149 | struct ofopgroup *group; |
79eee1eb | 3150 | |
7024dffe | 3151 | group = ofopgroup_create(ofproto, ofconn, request, UINT32_MAX); |
9ed18e46 | 3152 | LIST_FOR_EACH_SAFE (rule, next, ofproto_node, rules) { |
254750ce | 3153 | delete_flow__(rule, group); |
79eee1eb | 3154 | } |
7ee20df1 | 3155 | ofopgroup_submit(group); |
79eee1eb | 3156 | |
9ed18e46 | 3157 | return 0; |
79eee1eb | 3158 | } |
79eee1eb BP |
3159 | |
3160 | /* Implements OFPFC_DELETE. */ | |
90bf1e07 | 3161 | static enum ofperr |
7024dffe BP |
3162 | delete_flows_loose(struct ofproto *ofproto, struct ofconn *ofconn, |
3163 | const struct ofputil_flow_mod *fm, | |
7ee20df1 | 3164 | const struct ofp_header *request) |
79eee1eb | 3165 | { |
9ed18e46 | 3166 | struct list rules; |
90bf1e07 | 3167 | enum ofperr error; |
064af421 | 3168 | |
81a76618 | 3169 | error = collect_rules_loose(ofproto, fm->table_id, &fm->match, |
e729e793 JP |
3170 | fm->cookie, fm->cookie_mask, |
3171 | fm->out_port, &rules); | |
9ed18e46 | 3172 | return (error ? error |
7024dffe BP |
3173 | : !list_is_empty(&rules) ? delete_flows__(ofproto, ofconn, request, |
3174 | &rules) | |
9ed18e46 | 3175 | : 0); |
064af421 BP |
3176 | } |
3177 | ||
79eee1eb | 3178 | /* Implements OFPFC_DELETE_STRICT. */ |
90bf1e07 | 3179 | static enum ofperr |
7024dffe | 3180 | delete_flow_strict(struct ofproto *ofproto, struct ofconn *ofconn, |
1b9d6420 | 3181 | const struct ofputil_flow_mod *fm, |
7ee20df1 | 3182 | const struct ofp_header *request) |
79eee1eb | 3183 | { |
9ed18e46 | 3184 | struct list rules; |
90bf1e07 | 3185 | enum ofperr error; |
79eee1eb | 3186 | |
81a76618 BP |
3187 | error = collect_rules_strict(ofproto, fm->table_id, &fm->match, |
3188 | fm->priority, fm->cookie, fm->cookie_mask, | |
e729e793 | 3189 | fm->out_port, &rules); |
9ed18e46 | 3190 | return (error ? error |
7024dffe BP |
3191 | : list_is_singleton(&rules) ? delete_flows__(ofproto, ofconn, |
3192 | request, &rules) | |
9ed18e46 | 3193 | : 0); |
abe529af BP |
3194 | } |
3195 | ||
3196 | static void | |
3197 | ofproto_rule_send_removed(struct rule *rule, uint8_t reason) | |
3198 | { | |
3199 | struct ofputil_flow_removed fr; | |
3200 | ||
2b07c8b1 | 3201 | if (ofproto_rule_is_hidden(rule) || !rule->send_flow_removed) { |
abe529af BP |
3202 | return; |
3203 | } | |
3204 | ||
81a76618 BP |
3205 | fr.match = rule->cr.match; |
3206 | fr.priority = rule->cr.priority; | |
abe529af BP |
3207 | fr.cookie = rule->flow_cookie; |
3208 | fr.reason = reason; | |
f27f2134 BP |
3209 | calc_flow_duration__(rule->created, time_msec(), |
3210 | &fr.duration_sec, &fr.duration_nsec); | |
abe529af | 3211 | fr.idle_timeout = rule->idle_timeout; |
fa2bad0f | 3212 | fr.hard_timeout = rule->hard_timeout; |
abe529af BP |
3213 | rule->ofproto->ofproto_class->rule_get_stats(rule, &fr.packet_count, |
3214 | &fr.byte_count); | |
3215 | ||
3216 | connmgr_send_flow_removed(rule->ofproto->connmgr, &fr); | |
3217 | } | |
3218 | ||
1745cd08 BP |
3219 | void |
3220 | ofproto_rule_update_used(struct rule *rule, long long int used) | |
3221 | { | |
3222 | if (used > rule->used) { | |
254750ce BP |
3223 | struct eviction_group *evg = rule->eviction_group; |
3224 | ||
1745cd08 | 3225 | rule->used = used; |
254750ce BP |
3226 | if (evg) { |
3227 | heap_change(&evg->rules, &rule->evg_node, | |
3228 | rule_eviction_priority(rule)); | |
3229 | } | |
1745cd08 BP |
3230 | } |
3231 | } | |
3232 | ||
abe529af BP |
3233 | /* Sends an OpenFlow "flow removed" message with the given 'reason' (either |
3234 | * OFPRR_HARD_TIMEOUT or OFPRR_IDLE_TIMEOUT), and then removes 'rule' from its | |
3235 | * ofproto. | |
3236 | * | |
e2a3d183 BP |
3237 | * 'rule' must not have a pending operation (that is, 'rule->pending' must be |
3238 | * NULL). | |
3239 | * | |
abe529af BP |
3240 | * ofproto implementation ->run() functions should use this function to expire |
3241 | * OpenFlow flows. */ | |
3242 | void | |
3243 | ofproto_rule_expire(struct rule *rule, uint8_t reason) | |
3244 | { | |
7ee20df1 BP |
3245 | struct ofproto *ofproto = rule->ofproto; |
3246 | struct ofopgroup *group; | |
3247 | ||
abe529af | 3248 | assert(reason == OFPRR_HARD_TIMEOUT || reason == OFPRR_IDLE_TIMEOUT); |
7ee20df1 | 3249 | |
abe529af | 3250 | ofproto_rule_send_removed(rule, reason); |
7ee20df1 | 3251 | |
7024dffe | 3252 | group = ofopgroup_create_unattached(ofproto); |
2b07c8b1 | 3253 | ofoperation_create(group, rule, OFOPERATION_DELETE, reason); |
d0918789 | 3254 | oftable_remove_rule(rule); |
254750ce | 3255 | ofproto->ofproto_class->rule_destruct(rule); |
7ee20df1 | 3256 | ofopgroup_submit(group); |
79eee1eb BP |
3257 | } |
3258 | \f | |
90bf1e07 | 3259 | static enum ofperr |
2e4f5fcf | 3260 | handle_flow_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3261 | { |
a5b8d268 | 3262 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
a9a2da38 | 3263 | struct ofputil_flow_mod fm; |
f25d0cf3 BP |
3264 | uint64_t ofpacts_stub[1024 / 8]; |
3265 | struct ofpbuf ofpacts; | |
90bf1e07 | 3266 | enum ofperr error; |
a5b8d268 | 3267 | long long int now; |
064af421 | 3268 | |
76589937 | 3269 | error = reject_slave_controller(ofconn); |
9deba63b | 3270 | if (error) { |
f25d0cf3 | 3271 | goto exit; |
9deba63b | 3272 | } |
3052b0c5 | 3273 | |
f25d0cf3 BP |
3274 | ofpbuf_use_stub(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); |
3275 | error = ofputil_decode_flow_mod(&fm, oh, ofconn_get_protocol(ofconn), | |
3276 | &ofpacts); | |
064af421 | 3277 | if (error) { |
f25d0cf3 | 3278 | goto exit_free_ofpacts; |
064af421 BP |
3279 | } |
3280 | ||
35805806 | 3281 | if (fm.flags & OFPFF10_EMERG) { |
b5600ca2 BP |
3282 | /* We do not support the OpenFlow 1.0 emergency flow cache, which is not |
3283 | * required in OpenFlow 1.0.1 and removed from OpenFlow 1.1. */ | |
f25d0cf3 BP |
3284 | /* We do not support the emergency flow cache. It will hopefully get |
3285 | * dropped from OpenFlow in the near future. There is no good error | |
3286 | * code, so just state that the flow table is full. */ | |
3287 | error = OFPERR_OFPFMFC_ALL_TABLES_FULL; | |
548de4dd BP |
3288 | } |
3289 | if (!error) { | |
3290 | error = ofpacts_check(fm.ofpacts, fm.ofpacts_len, | |
81a76618 | 3291 | &fm.match.flow, ofproto->max_ports); |
548de4dd BP |
3292 | } |
3293 | if (!error) { | |
f25d0cf3 | 3294 | error = handle_flow_mod__(ofconn_get_ofproto(ofconn), ofconn, &fm, oh); |
49bdc010 | 3295 | } |
a5b8d268 | 3296 | if (error) { |
f25d0cf3 | 3297 | goto exit_free_ofpacts; |
a5b8d268 BP |
3298 | } |
3299 | ||
3300 | /* Record the operation for logging a summary report. */ | |
3301 | switch (fm.command) { | |
3302 | case OFPFC_ADD: | |
3303 | ofproto->n_add++; | |
3304 | break; | |
3305 | ||
3306 | case OFPFC_MODIFY: | |
3307 | case OFPFC_MODIFY_STRICT: | |
3308 | ofproto->n_modify++; | |
3309 | break; | |
3310 | ||
3311 | case OFPFC_DELETE: | |
3312 | case OFPFC_DELETE_STRICT: | |
3313 | ofproto->n_delete++; | |
3314 | break; | |
3315 | } | |
3316 | ||
3317 | now = time_msec(); | |
3318 | if (ofproto->next_op_report == LLONG_MAX) { | |
3319 | ofproto->first_op = now; | |
3320 | ofproto->next_op_report = MAX(now + 10 * 1000, | |
3321 | ofproto->op_backoff); | |
3322 | ofproto->op_backoff = ofproto->next_op_report + 60 * 1000; | |
3323 | } | |
3324 | ofproto->last_op = now; | |
3325 | ||
f25d0cf3 BP |
3326 | exit_free_ofpacts: |
3327 | ofpbuf_uninit(&ofpacts); | |
3328 | exit: | |
3329 | return error; | |
75a75043 BP |
3330 | } |
3331 | ||
90bf1e07 | 3332 | static enum ofperr |
75a75043 BP |
3333 | handle_flow_mod__(struct ofproto *ofproto, struct ofconn *ofconn, |
3334 | const struct ofputil_flow_mod *fm, | |
3335 | const struct ofp_header *oh) | |
3336 | { | |
3337 | if (ofproto->n_pending >= 50) { | |
3338 | assert(!list_is_empty(&ofproto->pending)); | |
3339 | return OFPROTO_POSTPONE; | |
3340 | } | |
3341 | ||
3342 | switch (fm->command) { | |
3052b0c5 | 3343 | case OFPFC_ADD: |
75a75043 | 3344 | return add_flow(ofproto, ofconn, fm, oh); |
3052b0c5 BP |
3345 | |
3346 | case OFPFC_MODIFY: | |
75a75043 | 3347 | return modify_flows_loose(ofproto, ofconn, fm, oh); |
3052b0c5 BP |
3348 | |
3349 | case OFPFC_MODIFY_STRICT: | |
75a75043 | 3350 | return modify_flow_strict(ofproto, ofconn, fm, oh); |
3052b0c5 BP |
3351 | |
3352 | case OFPFC_DELETE: | |
75a75043 | 3353 | return delete_flows_loose(ofproto, ofconn, fm, oh); |
3052b0c5 BP |
3354 | |
3355 | case OFPFC_DELETE_STRICT: | |
75a75043 | 3356 | return delete_flow_strict(ofproto, ofconn, fm, oh); |
3052b0c5 BP |
3357 | |
3358 | default: | |
75a75043 | 3359 | if (fm->command > 0xff) { |
fbfa2911 BP |
3360 | VLOG_WARN_RL(&rl, "%s: flow_mod has explicit table_id but " |
3361 | "flow_mod_table_id extension is not enabled", | |
3362 | ofproto->name); | |
6c1491fb | 3363 | } |
90bf1e07 | 3364 | return OFPERR_OFPFMFC_BAD_COMMAND; |
3052b0c5 BP |
3365 | } |
3366 | } | |
3367 | ||
90bf1e07 | 3368 | static enum ofperr |
d1e2cf21 | 3369 | handle_role_request(struct ofconn *ofconn, const struct ofp_header *oh) |
9deba63b | 3370 | { |
982697a4 | 3371 | const struct nx_role_request *nrr = ofpmsg_body(oh); |
9deba63b BP |
3372 | struct nx_role_request *reply; |
3373 | struct ofpbuf *buf; | |
3374 | uint32_t role; | |
3375 | ||
9deba63b BP |
3376 | role = ntohl(nrr->role); |
3377 | if (role != NX_ROLE_OTHER && role != NX_ROLE_MASTER | |
3378 | && role != NX_ROLE_SLAVE) { | |
2e0525bc | 3379 | return OFPERR_OFPRRFC_BAD_ROLE; |
9deba63b BP |
3380 | } |
3381 | ||
7ee20df1 BP |
3382 | if (ofconn_get_role(ofconn) != role |
3383 | && ofconn_has_pending_opgroups(ofconn)) { | |
3384 | return OFPROTO_POSTPONE; | |
3385 | } | |
3386 | ||
1ce0a5fa | 3387 | ofconn_set_role(ofconn, role); |
9deba63b | 3388 | |
982697a4 BP |
3389 | buf = ofpraw_alloc_reply(OFPRAW_NXT_ROLE_REPLY, oh, 0); |
3390 | reply = ofpbuf_put_zeros(buf, sizeof *reply); | |
9deba63b | 3391 | reply->role = htonl(role); |
b0421aa2 | 3392 | ofconn_send_reply(ofconn, buf); |
9deba63b BP |
3393 | |
3394 | return 0; | |
3395 | } | |
3396 | ||
90bf1e07 | 3397 | static enum ofperr |
6c1491fb BP |
3398 | handle_nxt_flow_mod_table_id(struct ofconn *ofconn, |
3399 | const struct ofp_header *oh) | |
3400 | { | |
982697a4 | 3401 | const struct nx_flow_mod_table_id *msg = ofpmsg_body(oh); |
27527aa0 BP |
3402 | enum ofputil_protocol cur, next; |
3403 | ||
3404 | cur = ofconn_get_protocol(ofconn); | |
3405 | next = ofputil_protocol_set_tid(cur, msg->set != 0); | |
3406 | ofconn_set_protocol(ofconn, next); | |
6c1491fb | 3407 | |
6c1491fb BP |
3408 | return 0; |
3409 | } | |
3410 | ||
90bf1e07 | 3411 | static enum ofperr |
d1e2cf21 | 3412 | handle_nxt_set_flow_format(struct ofconn *ofconn, const struct ofp_header *oh) |
09246b99 | 3413 | { |
982697a4 | 3414 | const struct nx_set_flow_format *msg = ofpmsg_body(oh); |
27527aa0 BP |
3415 | enum ofputil_protocol cur, next; |
3416 | enum ofputil_protocol next_base; | |
09246b99 | 3417 | |
27527aa0 BP |
3418 | next_base = ofputil_nx_flow_format_to_protocol(ntohl(msg->format)); |
3419 | if (!next_base) { | |
90bf1e07 | 3420 | return OFPERR_OFPBRC_EPERM; |
09246b99 | 3421 | } |
7ee20df1 | 3422 | |
27527aa0 BP |
3423 | cur = ofconn_get_protocol(ofconn); |
3424 | next = ofputil_protocol_set_base(cur, next_base); | |
3425 | if (cur != next && ofconn_has_pending_opgroups(ofconn)) { | |
3426 | /* Avoid sending async messages in surprising protocol. */ | |
7ee20df1 BP |
3427 | return OFPROTO_POSTPONE; |
3428 | } | |
3429 | ||
27527aa0 | 3430 | ofconn_set_protocol(ofconn, next); |
7ee20df1 | 3431 | return 0; |
09246b99 BP |
3432 | } |
3433 | ||
90bf1e07 | 3434 | static enum ofperr |
54834960 EJ |
3435 | handle_nxt_set_packet_in_format(struct ofconn *ofconn, |
3436 | const struct ofp_header *oh) | |
3437 | { | |
982697a4 | 3438 | const struct nx_set_packet_in_format *msg = ofpmsg_body(oh); |
54834960 EJ |
3439 | uint32_t format; |
3440 | ||
54834960 | 3441 | format = ntohl(msg->format); |
a15f0eeb | 3442 | if (format != NXPIF_OPENFLOW10 && format != NXPIF_NXM) { |
90bf1e07 | 3443 | return OFPERR_OFPBRC_EPERM; |
54834960 EJ |
3444 | } |
3445 | ||
3446 | if (format != ofconn_get_packet_in_format(ofconn) | |
3447 | && ofconn_has_pending_opgroups(ofconn)) { | |
3448 | /* Avoid sending async message in surprsing packet in format. */ | |
3449 | return OFPROTO_POSTPONE; | |
3450 | } | |
3451 | ||
3452 | ofconn_set_packet_in_format(ofconn, format); | |
3453 | return 0; | |
3454 | } | |
3455 | ||
80d5aefd BP |
3456 | static enum ofperr |
3457 | handle_nxt_set_async_config(struct ofconn *ofconn, const struct ofp_header *oh) | |
3458 | { | |
982697a4 | 3459 | const struct nx_async_config *msg = ofpmsg_body(oh); |
80d5aefd BP |
3460 | uint32_t master[OAM_N_TYPES]; |
3461 | uint32_t slave[OAM_N_TYPES]; | |
3462 | ||
3463 | master[OAM_PACKET_IN] = ntohl(msg->packet_in_mask[0]); | |
3464 | master[OAM_PORT_STATUS] = ntohl(msg->port_status_mask[0]); | |
3465 | master[OAM_FLOW_REMOVED] = ntohl(msg->flow_removed_mask[0]); | |
3466 | ||
3467 | slave[OAM_PACKET_IN] = ntohl(msg->packet_in_mask[1]); | |
3468 | slave[OAM_PORT_STATUS] = ntohl(msg->port_status_mask[1]); | |
3469 | slave[OAM_FLOW_REMOVED] = ntohl(msg->flow_removed_mask[1]); | |
3470 | ||
3471 | ofconn_set_async_config(ofconn, master, slave); | |
4550b647 MM |
3472 | if (ofconn_get_type(ofconn) == OFCONN_SERVICE && |
3473 | !ofconn_get_miss_send_len(ofconn)) { | |
3474 | ofconn_set_miss_send_len(ofconn, OFP_DEFAULT_MISS_SEND_LEN); | |
3475 | } | |
80d5aefd BP |
3476 | |
3477 | return 0; | |
3478 | } | |
3479 | ||
a7349929 BP |
3480 | static enum ofperr |
3481 | handle_nxt_set_controller_id(struct ofconn *ofconn, | |
3482 | const struct ofp_header *oh) | |
3483 | { | |
982697a4 | 3484 | const struct nx_controller_id *nci = ofpmsg_body(oh); |
a7349929 | 3485 | |
a7349929 BP |
3486 | if (!is_all_zeros(nci->zero, sizeof nci->zero)) { |
3487 | return OFPERR_NXBRC_MUST_BE_ZERO; | |
3488 | } | |
3489 | ||
3490 | ofconn_set_controller_id(ofconn, ntohs(nci->controller_id)); | |
3491 | return 0; | |
3492 | } | |
3493 | ||
90bf1e07 | 3494 | static enum ofperr |
d1e2cf21 | 3495 | handle_barrier_request(struct ofconn *ofconn, const struct ofp_header *oh) |
246e61ea | 3496 | { |
246e61ea JP |
3497 | struct ofpbuf *buf; |
3498 | ||
7ee20df1 BP |
3499 | if (ofconn_has_pending_opgroups(ofconn)) { |
3500 | return OFPROTO_POSTPONE; | |
3501 | } | |
3502 | ||
982697a4 BP |
3503 | buf = ofpraw_alloc_reply((oh->version == OFP10_VERSION |
3504 | ? OFPRAW_OFPT10_BARRIER_REPLY | |
3505 | : OFPRAW_OFPT11_BARRIER_REPLY), oh, 0); | |
b0421aa2 | 3506 | ofconn_send_reply(ofconn, buf); |
246e61ea JP |
3507 | return 0; |
3508 | } | |
3509 | ||
2b07c8b1 BP |
3510 | static void |
3511 | ofproto_compose_flow_refresh_update(const struct rule *rule, | |
3512 | enum nx_flow_monitor_flags flags, | |
3513 | struct list *msgs) | |
3514 | { | |
3515 | struct ofoperation *op = rule->pending; | |
3516 | struct ofputil_flow_update fu; | |
3517 | ||
3518 | if (op && op->type == OFOPERATION_ADD && !op->victim) { | |
3519 | /* We'll report the final flow when the operation completes. Reporting | |
3520 | * it now would cause a duplicate report later. */ | |
3521 | return; | |
3522 | } | |
3523 | ||
3524 | fu.event = (flags & (NXFMF_INITIAL | NXFMF_ADD) | |
3525 | ? NXFME_ADDED : NXFME_MODIFIED); | |
3526 | fu.reason = 0; | |
3527 | fu.idle_timeout = rule->idle_timeout; | |
3528 | fu.hard_timeout = rule->hard_timeout; | |
3529 | fu.table_id = rule->table_id; | |
3530 | fu.cookie = rule->flow_cookie; | |
81a76618 | 3531 | fu.match = CONST_CAST(struct match *, &rule->cr.match); |
2b07c8b1 BP |
3532 | if (!(flags & NXFMF_ACTIONS)) { |
3533 | fu.ofpacts = NULL; | |
3534 | fu.ofpacts_len = 0; | |
3535 | } else if (!op) { | |
3536 | fu.ofpacts = rule->ofpacts; | |
3537 | fu.ofpacts_len = rule->ofpacts_len; | |
3538 | } else { | |
3539 | /* An operation is in progress. Use the previous version of the flow's | |
3540 | * actions, so that when the operation commits we report the change. */ | |
3541 | switch (op->type) { | |
3542 | case OFOPERATION_ADD: | |
3543 | /* We already verified that there was a victim. */ | |
3544 | fu.ofpacts = op->victim->ofpacts; | |
3545 | fu.ofpacts_len = op->victim->ofpacts_len; | |
3546 | break; | |
3547 | ||
3548 | case OFOPERATION_MODIFY: | |
3549 | if (op->ofpacts) { | |
3550 | fu.ofpacts = op->ofpacts; | |
3551 | fu.ofpacts_len = op->ofpacts_len; | |
3552 | } else { | |
3553 | fu.ofpacts = rule->ofpacts; | |
3554 | fu.ofpacts_len = rule->ofpacts_len; | |
3555 | } | |
3556 | break; | |
3557 | ||
3558 | case OFOPERATION_DELETE: | |
3559 | fu.ofpacts = rule->ofpacts; | |
3560 | fu.ofpacts_len = rule->ofpacts_len; | |
3561 | break; | |
3562 | ||
3563 | default: | |
3564 | NOT_REACHED(); | |
3565 | } | |
3566 | } | |
3567 | ||
3568 | if (list_is_empty(msgs)) { | |
3569 | ofputil_start_flow_update(msgs); | |
3570 | } | |
3571 | ofputil_append_flow_update(&fu, msgs); | |
3572 | } | |
3573 | ||
3574 | void | |
3575 | ofmonitor_compose_refresh_updates(struct list *rules, struct list *msgs) | |
3576 | { | |
3577 | struct rule *rule; | |
3578 | ||
3579 | LIST_FOR_EACH (rule, ofproto_node, rules) { | |
3580 | enum nx_flow_monitor_flags flags = rule->monitor_flags; | |
3581 | rule->monitor_flags = 0; | |
3582 | ||
3583 | ofproto_compose_flow_refresh_update(rule, flags, msgs); | |
3584 | } | |
3585 | } | |
3586 | ||
3587 | static void | |
3588 | ofproto_collect_ofmonitor_refresh_rule(const struct ofmonitor *m, | |
3589 | struct rule *rule, uint64_t seqno, | |
3590 | struct list *rules) | |
3591 | { | |
3592 | enum nx_flow_monitor_flags update; | |
3593 | ||
3594 | if (ofproto_rule_is_hidden(rule)) { | |
3595 | return; | |
3596 | } | |
3597 | ||
3598 | if (!(rule->pending | |
3599 | ? ofoperation_has_out_port(rule->pending, m->out_port) | |
3600 | : ofproto_rule_has_out_port(rule, m->out_port))) { | |
3601 | return; | |
3602 | } | |
3603 | ||
3604 | if (seqno) { | |
3605 | if (rule->add_seqno > seqno) { | |
3606 | update = NXFMF_ADD | NXFMF_MODIFY; | |
3607 | } else if (rule->modify_seqno > seqno) { | |
3608 | update = NXFMF_MODIFY; | |
3609 | } else { | |
3610 | return; | |
3611 | } | |
3612 | ||
3613 | if (!(m->flags & update)) { | |
3614 | return; | |
3615 | } | |
3616 | } else { | |
3617 | update = NXFMF_INITIAL; | |
3618 | } | |
3619 | ||
3620 | if (!rule->monitor_flags) { | |
3621 | list_push_back(rules, &rule->ofproto_node); | |
3622 | } | |
3623 | rule->monitor_flags |= update | (m->flags & NXFMF_ACTIONS); | |
3624 | } | |
3625 | ||
3626 | static void | |
3627 | ofproto_collect_ofmonitor_refresh_rules(const struct ofmonitor *m, | |
3628 | uint64_t seqno, | |
3629 | struct list *rules) | |
3630 | { | |
3631 | const struct ofproto *ofproto = ofconn_get_ofproto(m->ofconn); | |
3632 | const struct ofoperation *op; | |
3633 | const struct oftable *table; | |
81a76618 | 3634 | struct cls_rule target; |
2b07c8b1 | 3635 | |
81a76618 | 3636 | cls_rule_init(&target, &m->match, 0); |
2b07c8b1 BP |
3637 | FOR_EACH_MATCHING_TABLE (table, m->table_id, ofproto) { |
3638 | struct cls_cursor cursor; | |
3639 | struct rule *rule; | |
3640 | ||
81a76618 | 3641 | cls_cursor_init(&cursor, &table->cls, &target); |
2b07c8b1 BP |
3642 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { |
3643 | assert(!rule->pending); /* XXX */ | |
3644 | ofproto_collect_ofmonitor_refresh_rule(m, rule, seqno, rules); | |
3645 | } | |
3646 | } | |
3647 | ||
3648 | HMAP_FOR_EACH (op, hmap_node, &ofproto->deletions) { | |
3649 | struct rule *rule = op->rule; | |
3650 | ||
3651 | if (((m->table_id == 0xff | |
3652 | ? !(ofproto->tables[rule->table_id].flags & OFTABLE_HIDDEN) | |
3653 | : m->table_id == rule->table_id)) | |
81a76618 | 3654 | && cls_rule_is_loose_match(&rule->cr, &target.match)) { |
2b07c8b1 BP |
3655 | ofproto_collect_ofmonitor_refresh_rule(m, rule, seqno, rules); |
3656 | } | |
3657 | } | |
48d28ac1 | 3658 | cls_rule_destroy(&target); |
2b07c8b1 BP |
3659 | } |
3660 | ||
3661 | static void | |
3662 | ofproto_collect_ofmonitor_initial_rules(struct ofmonitor *m, | |
3663 | struct list *rules) | |
3664 | { | |
3665 | if (m->flags & NXFMF_INITIAL) { | |
3666 | ofproto_collect_ofmonitor_refresh_rules(m, 0, rules); | |
3667 | } | |
3668 | } | |
3669 | ||
3670 | void | |
3671 | ofmonitor_collect_resume_rules(struct ofmonitor *m, | |
3672 | uint64_t seqno, struct list *rules) | |
3673 | { | |
3674 | ofproto_collect_ofmonitor_refresh_rules(m, seqno, rules); | |
3675 | } | |
3676 | ||
3677 | static enum ofperr | |
982697a4 | 3678 | handle_flow_monitor_request(struct ofconn *ofconn, const struct ofp_header *oh) |
2b07c8b1 BP |
3679 | { |
3680 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
3681 | struct ofmonitor **monitors; | |
3682 | size_t n_monitors, allocated_monitors; | |
3683 | struct list replies; | |
3684 | enum ofperr error; | |
3685 | struct list rules; | |
3686 | struct ofpbuf b; | |
3687 | size_t i; | |
3688 | ||
3689 | error = 0; | |
982697a4 | 3690 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
2b07c8b1 BP |
3691 | monitors = NULL; |
3692 | n_monitors = allocated_monitors = 0; | |
3693 | for (;;) { | |
3694 | struct ofputil_flow_monitor_request request; | |
3695 | struct ofmonitor *m; | |
3696 | int retval; | |
3697 | ||
3698 | retval = ofputil_decode_flow_monitor_request(&request, &b); | |
3699 | if (retval == EOF) { | |
3700 | break; | |
3701 | } else if (retval) { | |
3702 | error = retval; | |
3703 | goto error; | |
3704 | } | |
3705 | ||
3706 | if (request.table_id != 0xff | |
3707 | && request.table_id >= ofproto->n_tables) { | |
3708 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
3709 | goto error; | |
3710 | } | |
3711 | ||
3712 | error = ofmonitor_create(&request, ofconn, &m); | |
3713 | if (error) { | |
3714 | goto error; | |
3715 | } | |
3716 | ||
3717 | if (n_monitors >= allocated_monitors) { | |
3718 | monitors = x2nrealloc(monitors, &allocated_monitors, | |
3719 | sizeof *monitors); | |
3720 | } | |
3721 | monitors[n_monitors++] = m; | |
3722 | } | |
3723 | ||
3724 | list_init(&rules); | |
3725 | for (i = 0; i < n_monitors; i++) { | |
3726 | ofproto_collect_ofmonitor_initial_rules(monitors[i], &rules); | |
3727 | } | |
3728 | ||
982697a4 | 3729 | ofpmp_init(&replies, oh); |
2b07c8b1 BP |
3730 | ofmonitor_compose_refresh_updates(&rules, &replies); |
3731 | ofconn_send_replies(ofconn, &replies); | |
3732 | ||
3733 | free(monitors); | |
3734 | ||
3735 | return 0; | |
3736 | ||
3737 | error: | |
3738 | for (i = 0; i < n_monitors; i++) { | |
3739 | ofmonitor_destroy(monitors[i]); | |
3740 | } | |
3741 | free(monitors); | |
3742 | return error; | |
3743 | } | |
3744 | ||
3745 | static enum ofperr | |
3746 | handle_flow_monitor_cancel(struct ofconn *ofconn, const struct ofp_header *oh) | |
3747 | { | |
3748 | struct ofmonitor *m; | |
3749 | uint32_t id; | |
3750 | ||
3751 | id = ofputil_decode_flow_monitor_cancel(oh); | |
3752 | m = ofmonitor_lookup(ofconn, id); | |
3753 | if (!m) { | |
3754 | return OFPERR_NXBRC_FM_BAD_ID; | |
3755 | } | |
3756 | ||
3757 | ofmonitor_destroy(m); | |
3758 | return 0; | |
3759 | } | |
3760 | ||
90bf1e07 | 3761 | static enum ofperr |
d1e2cf21 | 3762 | handle_openflow__(struct ofconn *ofconn, const struct ofpbuf *msg) |
064af421 | 3763 | { |
d1e2cf21 | 3764 | const struct ofp_header *oh = msg->data; |
982697a4 | 3765 | enum ofptype type; |
90bf1e07 | 3766 | enum ofperr error; |
064af421 | 3767 | |
982697a4 | 3768 | error = ofptype_decode(&type, oh); |
d1e2cf21 BP |
3769 | if (error) { |
3770 | return error; | |
3771 | } | |
064af421 | 3772 | |
982697a4 | 3773 | switch (type) { |
d1e2cf21 | 3774 | /* OpenFlow requests. */ |
982697a4 | 3775 | case OFPTYPE_ECHO_REQUEST: |
d1e2cf21 | 3776 | return handle_echo_request(ofconn, oh); |
064af421 | 3777 | |
982697a4 | 3778 | case OFPTYPE_FEATURES_REQUEST: |
d1e2cf21 | 3779 | return handle_features_request(ofconn, oh); |
064af421 | 3780 | |
982697a4 | 3781 | case OFPTYPE_GET_CONFIG_REQUEST: |
d1e2cf21 | 3782 | return handle_get_config_request(ofconn, oh); |
064af421 | 3783 | |
982697a4 BP |
3784 | case OFPTYPE_SET_CONFIG: |
3785 | return handle_set_config(ofconn, oh); | |
064af421 | 3786 | |
982697a4 BP |
3787 | case OFPTYPE_PACKET_OUT: |
3788 | return handle_packet_out(ofconn, oh); | |
064af421 | 3789 | |
982697a4 | 3790 | case OFPTYPE_PORT_MOD: |
d1e2cf21 | 3791 | return handle_port_mod(ofconn, oh); |
064af421 | 3792 | |
982697a4 | 3793 | case OFPTYPE_FLOW_MOD: |
2e4f5fcf | 3794 | return handle_flow_mod(ofconn, oh); |
064af421 | 3795 | |
982697a4 | 3796 | case OFPTYPE_BARRIER_REQUEST: |
d1e2cf21 | 3797 | return handle_barrier_request(ofconn, oh); |
064af421 | 3798 | |
d1e2cf21 | 3799 | /* OpenFlow replies. */ |
982697a4 | 3800 | case OFPTYPE_ECHO_REPLY: |
d1e2cf21 | 3801 | return 0; |
246e61ea | 3802 | |
d1e2cf21 | 3803 | /* Nicira extension requests. */ |
982697a4 | 3804 | case OFPTYPE_ROLE_REQUEST: |
d1e2cf21 BP |
3805 | return handle_role_request(ofconn, oh); |
3806 | ||
982697a4 | 3807 | case OFPTYPE_FLOW_MOD_TABLE_ID: |
6c1491fb | 3808 | return handle_nxt_flow_mod_table_id(ofconn, oh); |
d1e2cf21 | 3809 | |
982697a4 | 3810 | case OFPTYPE_SET_FLOW_FORMAT: |
d1e2cf21 BP |
3811 | return handle_nxt_set_flow_format(ofconn, oh); |
3812 | ||
982697a4 | 3813 | case OFPTYPE_SET_PACKET_IN_FORMAT: |
54834960 EJ |
3814 | return handle_nxt_set_packet_in_format(ofconn, oh); |
3815 | ||
982697a4 | 3816 | case OFPTYPE_SET_CONTROLLER_ID: |
a7349929 BP |
3817 | return handle_nxt_set_controller_id(ofconn, oh); |
3818 | ||
982697a4 | 3819 | case OFPTYPE_FLOW_AGE: |
f27f2134 BP |
3820 | /* Nothing to do. */ |
3821 | return 0; | |
3822 | ||
982697a4 | 3823 | case OFPTYPE_FLOW_MONITOR_CANCEL: |
2b07c8b1 BP |
3824 | return handle_flow_monitor_cancel(ofconn, oh); |
3825 | ||
982697a4 | 3826 | case OFPTYPE_SET_ASYNC_CONFIG: |
80d5aefd BP |
3827 | return handle_nxt_set_async_config(ofconn, oh); |
3828 | ||
349adfb2 | 3829 | /* Statistics requests. */ |
982697a4 BP |
3830 | case OFPTYPE_DESC_STATS_REQUEST: |
3831 | return handle_desc_stats_request(ofconn, oh); | |
3832 | ||
3833 | case OFPTYPE_FLOW_STATS_REQUEST: | |
3834 | return handle_flow_stats_request(ofconn, oh); | |
3835 | ||
3836 | case OFPTYPE_AGGREGATE_STATS_REQUEST: | |
3837 | return handle_aggregate_stats_request(ofconn, oh); | |
3838 | ||
3839 | case OFPTYPE_TABLE_STATS_REQUEST: | |
3840 | return handle_table_stats_request(ofconn, oh); | |
3841 | ||
3842 | case OFPTYPE_PORT_STATS_REQUEST: | |
3843 | return handle_port_stats_request(ofconn, oh); | |
3844 | ||
3845 | case OFPTYPE_QUEUE_STATS_REQUEST: | |
3846 | return handle_queue_stats_request(ofconn, oh); | |
3847 | ||
3848 | case OFPTYPE_PORT_DESC_STATS_REQUEST: | |
3849 | return handle_port_desc_stats_request(ofconn, oh); | |
3850 | ||
3851 | case OFPTYPE_FLOW_MONITOR_STATS_REQUEST: | |
3852 | return handle_flow_monitor_request(ofconn, oh); | |
3853 | ||
3854 | case OFPTYPE_HELLO: | |
3855 | case OFPTYPE_ERROR: | |
3856 | case OFPTYPE_FEATURES_REPLY: | |
3857 | case OFPTYPE_GET_CONFIG_REPLY: | |
3858 | case OFPTYPE_PACKET_IN: | |
3859 | case OFPTYPE_FLOW_REMOVED: | |
3860 | case OFPTYPE_PORT_STATUS: | |
3861 | case OFPTYPE_BARRIER_REPLY: | |
3862 | case OFPTYPE_DESC_STATS_REPLY: | |
3863 | case OFPTYPE_FLOW_STATS_REPLY: | |
3864 | case OFPTYPE_QUEUE_STATS_REPLY: | |
3865 | case OFPTYPE_PORT_STATS_REPLY: | |
3866 | case OFPTYPE_TABLE_STATS_REPLY: | |
3867 | case OFPTYPE_AGGREGATE_STATS_REPLY: | |
3868 | case OFPTYPE_PORT_DESC_STATS_REPLY: | |
3869 | case OFPTYPE_ROLE_REPLY: | |
3870 | case OFPTYPE_FLOW_MONITOR_PAUSED: | |
3871 | case OFPTYPE_FLOW_MONITOR_RESUMED: | |
3872 | case OFPTYPE_FLOW_MONITOR_STATS_REPLY: | |
064af421 | 3873 | default: |
982697a4 | 3874 | return OFPERR_OFPBRC_BAD_TYPE; |
064af421 | 3875 | } |
d1e2cf21 | 3876 | } |
064af421 | 3877 | |
7ee20df1 | 3878 | static bool |
d1e2cf21 BP |
3879 | handle_openflow(struct ofconn *ofconn, struct ofpbuf *ofp_msg) |
3880 | { | |
3881 | int error = handle_openflow__(ofconn, ofp_msg); | |
7ee20df1 | 3882 | if (error && error != OFPROTO_POSTPONE) { |
1be5ff75 | 3883 | ofconn_send_error(ofconn, ofp_msg->data, error); |
064af421 | 3884 | } |
d1e2cf21 | 3885 | COVERAGE_INC(ofproto_recv_openflow); |
7ee20df1 BP |
3886 | return error != OFPROTO_POSTPONE; |
3887 | } | |
3888 | \f | |
3889 | /* Asynchronous operations. */ | |
3890 | ||
3891 | /* Creates and returns a new ofopgroup that is not associated with any | |
3892 | * OpenFlow connection. | |
3893 | * | |
3894 | * The caller should add operations to the returned group with | |
3895 | * ofoperation_create() and then submit it with ofopgroup_submit(). */ | |
3896 | static struct ofopgroup * | |
7024dffe | 3897 | ofopgroup_create_unattached(struct ofproto *ofproto) |
7ee20df1 BP |
3898 | { |
3899 | struct ofopgroup *group = xzalloc(sizeof *group); | |
3900 | group->ofproto = ofproto; | |
3901 | list_init(&group->ofproto_node); | |
3902 | list_init(&group->ops); | |
3903 | list_init(&group->ofconn_node); | |
3904 | return group; | |
3905 | } | |
3906 | ||
7024dffe BP |
3907 | /* Creates and returns a new ofopgroup for 'ofproto'. |
3908 | * | |
3909 | * If 'ofconn' is NULL, the new ofopgroup is not associated with any OpenFlow | |
3910 | * connection. The 'request' and 'buffer_id' arguments are ignored. | |
3911 | * | |
3912 | * If 'ofconn' is nonnull, then the new ofopgroup is associated with 'ofconn'. | |
3913 | * If the ofopgroup eventually fails, then the error reply will include | |
3914 | * 'request'. If the ofopgroup eventually succeeds, then the packet with | |
3915 | * buffer id 'buffer_id' on 'ofconn' will be sent by 'ofconn''s ofproto. | |
7ee20df1 BP |
3916 | * |
3917 | * The caller should add operations to the returned group with | |
3918 | * ofoperation_create() and then submit it with ofopgroup_submit(). */ | |
3919 | static struct ofopgroup * | |
7024dffe BP |
3920 | ofopgroup_create(struct ofproto *ofproto, struct ofconn *ofconn, |
3921 | const struct ofp_header *request, uint32_t buffer_id) | |
7ee20df1 | 3922 | { |
7024dffe BP |
3923 | struct ofopgroup *group = ofopgroup_create_unattached(ofproto); |
3924 | if (ofconn) { | |
3925 | size_t request_len = ntohs(request->length); | |
7ee20df1 | 3926 | |
7024dffe | 3927 | assert(ofconn_get_ofproto(ofconn) == ofproto); |
7ee20df1 | 3928 | |
7024dffe BP |
3929 | ofconn_add_opgroup(ofconn, &group->ofconn_node); |
3930 | group->ofconn = ofconn; | |
3931 | group->request = xmemdup(request, MIN(request_len, 64)); | |
3932 | group->buffer_id = buffer_id; | |
3933 | } | |
7ee20df1 BP |
3934 | return group; |
3935 | } | |
3936 | ||
3937 | /* Submits 'group' for processing. | |
3938 | * | |
3939 | * If 'group' contains no operations (e.g. none were ever added, or all of the | |
3940 | * ones that were added completed synchronously), then it is destroyed | |
3941 | * immediately. Otherwise it is added to the ofproto's list of pending | |
3942 | * groups. */ | |
3943 | static void | |
3944 | ofopgroup_submit(struct ofopgroup *group) | |
3945 | { | |
e615b0a3 BP |
3946 | if (!group->n_running) { |
3947 | ofopgroup_complete(group); | |
7ee20df1 BP |
3948 | } else { |
3949 | list_push_back(&group->ofproto->pending, &group->ofproto_node); | |
dd5616b3 | 3950 | group->ofproto->n_pending++; |
7ee20df1 BP |
3951 | } |
3952 | } | |
3953 | ||
3954 | static void | |
e615b0a3 | 3955 | ofopgroup_complete(struct ofopgroup *group) |
7ee20df1 | 3956 | { |
e615b0a3 | 3957 | struct ofproto *ofproto = group->ofproto; |
2b07c8b1 BP |
3958 | |
3959 | struct ofconn *abbrev_ofconn; | |
3960 | ovs_be32 abbrev_xid; | |
3961 | ||
e615b0a3 BP |
3962 | struct ofoperation *op, *next_op; |
3963 | int error; | |
3964 | ||
3965 | assert(!group->n_running); | |
3966 | ||
3967 | error = 0; | |
3968 | LIST_FOR_EACH (op, group_node, &group->ops) { | |
3969 | if (op->error) { | |
3970 | error = op->error; | |
3971 | break; | |
3972 | } | |
3973 | } | |
3974 | ||
3975 | if (!error && group->ofconn && group->buffer_id != UINT32_MAX) { | |
3976 | LIST_FOR_EACH (op, group_node, &group->ops) { | |
3977 | if (op->type != OFOPERATION_DELETE) { | |
3978 | struct ofpbuf *packet; | |
3979 | uint16_t in_port; | |
3980 | ||
3981 | error = ofconn_pktbuf_retrieve(group->ofconn, group->buffer_id, | |
3982 | &packet, &in_port); | |
3983 | if (packet) { | |
3984 | assert(!error); | |
3985 | error = rule_execute(op->rule, in_port, packet); | |
3986 | } | |
3987 | break; | |
3988 | } | |
3989 | } | |
3990 | } | |
3991 | ||
2b07c8b1 BP |
3992 | if (!error && !list_is_empty(&group->ofconn_node)) { |
3993 | abbrev_ofconn = group->ofconn; | |
3994 | abbrev_xid = group->request->xid; | |
3995 | } else { | |
3996 | abbrev_ofconn = NULL; | |
3997 | abbrev_xid = htonl(0); | |
3998 | } | |
e615b0a3 BP |
3999 | LIST_FOR_EACH_SAFE (op, next_op, group_node, &group->ops) { |
4000 | struct rule *rule = op->rule; | |
2b07c8b1 BP |
4001 | |
4002 | if (!op->error && !ofproto_rule_is_hidden(rule)) { | |
4003 | /* Check that we can just cast from ofoperation_type to | |
4004 | * nx_flow_update_event. */ | |
1ec3db6f EJ |
4005 | BUILD_ASSERT_DECL((enum nx_flow_update_event) OFOPERATION_ADD |
4006 | == NXFME_ADDED); | |
4007 | BUILD_ASSERT_DECL((enum nx_flow_update_event) OFOPERATION_DELETE | |
4008 | == NXFME_DELETED); | |
4009 | BUILD_ASSERT_DECL((enum nx_flow_update_event) OFOPERATION_MODIFY | |
4010 | == NXFME_MODIFIED); | |
2b07c8b1 BP |
4011 | |
4012 | ofmonitor_report(ofproto->connmgr, rule, | |
4013 | (enum nx_flow_update_event) op->type, | |
4014 | op->reason, abbrev_ofconn, abbrev_xid); | |
4015 | } | |
4016 | ||
e615b0a3 BP |
4017 | rule->pending = NULL; |
4018 | ||
4019 | switch (op->type) { | |
4020 | case OFOPERATION_ADD: | |
4021 | if (!op->error) { | |
4022 | ofproto_rule_destroy__(op->victim); | |
81a76618 | 4023 | if ((rule->cr.match.wc.masks.vlan_tci & htons(VLAN_VID_MASK)) |
e615b0a3 BP |
4024 | == htons(VLAN_VID_MASK)) { |
4025 | if (ofproto->vlan_bitmap) { | |
81a76618 | 4026 | uint16_t vid; |
e615b0a3 | 4027 | |
81a76618 | 4028 | vid = vlan_tci_to_vid(rule->cr.match.flow.vlan_tci); |
e615b0a3 BP |
4029 | if (!bitmap_is_set(ofproto->vlan_bitmap, vid)) { |
4030 | bitmap_set1(ofproto->vlan_bitmap, vid); | |
4031 | ofproto->vlans_changed = true; | |
4032 | } | |
4033 | } else { | |
4034 | ofproto->vlans_changed = true; | |
4035 | } | |
4036 | } | |
4037 | } else { | |
4038 | oftable_substitute_rule(rule, op->victim); | |
4039 | ofproto_rule_destroy__(rule); | |
4040 | } | |
4041 | break; | |
4042 | ||
4043 | case OFOPERATION_DELETE: | |
4044 | assert(!op->error); | |
4045 | ofproto_rule_destroy__(rule); | |
4046 | op->rule = NULL; | |
4047 | break; | |
4048 | ||
4049 | case OFOPERATION_MODIFY: | |
4050 | if (!op->error) { | |
4051 | rule->modified = time_msec(); | |
4052 | } else { | |
41792464 | 4053 | rule->flow_cookie = op->flow_cookie; |
08043761 BP |
4054 | if (op->ofpacts) { |
4055 | free(rule->ofpacts); | |
4056 | rule->ofpacts = op->ofpacts; | |
4057 | rule->ofpacts_len = op->ofpacts_len; | |
4058 | op->ofpacts = NULL; | |
4059 | op->ofpacts_len = 0; | |
4060 | } | |
e615b0a3 BP |
4061 | } |
4062 | break; | |
4063 | ||
4064 | default: | |
4065 | NOT_REACHED(); | |
4066 | } | |
4067 | ||
4068 | ofoperation_destroy(op); | |
4069 | } | |
4070 | ||
2b07c8b1 BP |
4071 | ofmonitor_flush(ofproto->connmgr); |
4072 | ||
7ee20df1 | 4073 | if (!list_is_empty(&group->ofproto_node)) { |
e615b0a3 BP |
4074 | assert(ofproto->n_pending > 0); |
4075 | ofproto->n_pending--; | |
7ee20df1 BP |
4076 | list_remove(&group->ofproto_node); |
4077 | } | |
4078 | if (!list_is_empty(&group->ofconn_node)) { | |
4079 | list_remove(&group->ofconn_node); | |
e615b0a3 BP |
4080 | if (error) { |
4081 | ofconn_send_error(group->ofconn, group->request, error); | |
7ee20df1 | 4082 | } |
e615b0a3 | 4083 | connmgr_retry(ofproto->connmgr); |
7ee20df1 BP |
4084 | } |
4085 | free(group->request); | |
4086 | free(group); | |
4087 | } | |
4088 | ||
4089 | /* Initiates a new operation on 'rule', of the specified 'type', within | |
a7d94793 BP |
4090 | * 'group'. Prior to calling, 'rule' must not have any pending operation. |
4091 | * | |
2b07c8b1 BP |
4092 | * For a 'type' of OFOPERATION_DELETE, 'reason' should specify the reason that |
4093 | * the flow is being deleted. For other 'type's, 'reason' is ignored (use 0). | |
4094 | * | |
a7d94793 BP |
4095 | * Returns the newly created ofoperation (which is also available as |
4096 | * rule->pending). */ | |
4097 | static struct ofoperation * | |
7ee20df1 | 4098 | ofoperation_create(struct ofopgroup *group, struct rule *rule, |
2b07c8b1 BP |
4099 | enum ofoperation_type type, |
4100 | enum ofp_flow_removed_reason reason) | |
7ee20df1 | 4101 | { |
a5b8d268 | 4102 | struct ofproto *ofproto = group->ofproto; |
7ee20df1 BP |
4103 | struct ofoperation *op; |
4104 | ||
4105 | assert(!rule->pending); | |
4106 | ||
4107 | op = rule->pending = xzalloc(sizeof *op); | |
4108 | op->group = group; | |
4109 | list_push_back(&group->ops, &op->group_node); | |
4110 | op->rule = rule; | |
4111 | op->type = type; | |
2b07c8b1 | 4112 | op->reason = reason; |
7ee20df1 BP |
4113 | op->flow_cookie = rule->flow_cookie; |
4114 | ||
e615b0a3 BP |
4115 | group->n_running++; |
4116 | ||
7ee20df1 | 4117 | if (type == OFOPERATION_DELETE) { |
a5b8d268 | 4118 | hmap_insert(&ofproto->deletions, &op->hmap_node, |
7ee20df1 BP |
4119 | cls_rule_hash(&rule->cr, rule->table_id)); |
4120 | } | |
a7d94793 BP |
4121 | |
4122 | return op; | |
7ee20df1 BP |
4123 | } |
4124 | ||
4125 | static void | |
4126 | ofoperation_destroy(struct ofoperation *op) | |
4127 | { | |
4128 | struct ofopgroup *group = op->group; | |
4129 | ||
4130 | if (op->rule) { | |
4131 | op->rule->pending = NULL; | |
4132 | } | |
4133 | if (op->type == OFOPERATION_DELETE) { | |
4134 | hmap_remove(&group->ofproto->deletions, &op->hmap_node); | |
4135 | } | |
4136 | list_remove(&op->group_node); | |
f25d0cf3 | 4137 | free(op->ofpacts); |
7ee20df1 | 4138 | free(op); |
7ee20df1 BP |
4139 | } |
4140 | ||
4141 | /* Indicates that 'op' completed with status 'error', which is either 0 to | |
90bf1e07 | 4142 | * indicate success or an OpenFlow error code on failure. |
7ee20df1 | 4143 | * |
a6a62132 BP |
4144 | * If 'error' is 0, indicating success, the operation will be committed |
4145 | * permanently to the flow table. There is one interesting subcase: | |
4146 | * | |
4147 | * - If 'op' is an "add flow" operation that is replacing an existing rule in | |
4148 | * the flow table (the "victim" rule) by a new one, then the caller must | |
4149 | * have uninitialized any derived state in the victim rule, as in step 5 in | |
4150 | * the "Life Cycle" in ofproto/ofproto-provider.h. ofoperation_complete() | |
4151 | * performs steps 6 and 7 for the victim rule, most notably by calling its | |
4152 | * ->rule_dealloc() function. | |
4153 | * | |
4154 | * If 'error' is nonzero, then generally the operation will be rolled back: | |
4155 | * | |
4156 | * - If 'op' is an "add flow" operation, ofproto removes the new rule or | |
4157 | * restores the original rule. The caller must have uninitialized any | |
4158 | * derived state in the new rule, as in step 5 of in the "Life Cycle" in | |
4159 | * ofproto/ofproto-provider.h. ofoperation_complete() performs steps 6 and | |
4160 | * and 7 for the new rule, calling its ->rule_dealloc() function. | |
4161 | * | |
4162 | * - If 'op' is a "modify flow" operation, ofproto restores the original | |
4163 | * actions. | |
4164 | * | |
4165 | * - 'op' must not be a "delete flow" operation. Removing a rule is not | |
4166 | * allowed to fail. It must always succeed. | |
7ee20df1 | 4167 | * |
5bee6e26 JP |
4168 | * Please see the large comment in ofproto/ofproto-provider.h titled |
4169 | * "Asynchronous Operation Support" for more information. */ | |
7ee20df1 | 4170 | void |
90bf1e07 | 4171 | ofoperation_complete(struct ofoperation *op, enum ofperr error) |
7ee20df1 BP |
4172 | { |
4173 | struct ofopgroup *group = op->group; | |
7ee20df1 | 4174 | |
e615b0a3 BP |
4175 | assert(op->rule->pending == op); |
4176 | assert(group->n_running > 0); | |
4177 | assert(!error || op->type != OFOPERATION_DELETE); | |
9075907c | 4178 | |
e615b0a3 BP |
4179 | op->error = error; |
4180 | if (!--group->n_running && !list_is_empty(&group->ofproto_node)) { | |
4181 | ofopgroup_complete(group); | |
7ee20df1 | 4182 | } |
7ee20df1 BP |
4183 | } |
4184 | ||
4185 | struct rule * | |
4186 | ofoperation_get_victim(struct ofoperation *op) | |
4187 | { | |
4188 | assert(op->type == OFOPERATION_ADD); | |
4189 | return op->victim; | |
064af421 BP |
4190 | } |
4191 | \f | |
064af421 | 4192 | static uint64_t |
fa60c019 | 4193 | pick_datapath_id(const struct ofproto *ofproto) |
064af421 | 4194 | { |
fa60c019 | 4195 | const struct ofport *port; |
064af421 | 4196 | |
abe529af | 4197 | port = ofproto_get_port(ofproto, OFPP_LOCAL); |
fa60c019 BP |
4198 | if (port) { |
4199 | uint8_t ea[ETH_ADDR_LEN]; | |
4200 | int error; | |
4201 | ||
4202 | error = netdev_get_etheraddr(port->netdev, ea); | |
064af421 BP |
4203 | if (!error) { |
4204 | return eth_addr_to_uint64(ea); | |
4205 | } | |
fbfa2911 BP |
4206 | VLOG_WARN("%s: could not get MAC address for %s (%s)", |
4207 | ofproto->name, netdev_get_name(port->netdev), | |
4208 | strerror(error)); | |
064af421 | 4209 | } |
fa60c019 | 4210 | return ofproto->fallback_dpid; |
064af421 BP |
4211 | } |
4212 | ||
4213 | static uint64_t | |
4214 | pick_fallback_dpid(void) | |
4215 | { | |
4216 | uint8_t ea[ETH_ADDR_LEN]; | |
70150daf | 4217 | eth_addr_nicira_random(ea); |
064af421 BP |
4218 | return eth_addr_to_uint64(ea); |
4219 | } | |
4220 | \f | |
254750ce BP |
4221 | /* Table overflow policy. */ |
4222 | ||
4223 | /* Chooses and returns a rule to evict from 'table'. Returns NULL if the table | |
4224 | * is not configured to evict rules or if the table contains no evictable | |
4225 | * rules. (Rules with 'evictable' set to false or with no timeouts are not | |
4226 | * evictable.) */ | |
4227 | static struct rule * | |
4228 | choose_rule_to_evict(struct oftable *table) | |
4229 | { | |
4230 | struct eviction_group *evg; | |
4231 | ||
4232 | if (!table->eviction_fields) { | |
4233 | return NULL; | |
4234 | } | |
4235 | ||
4236 | /* In the common case, the outer and inner loops here will each be entered | |
4237 | * exactly once: | |
4238 | * | |
4239 | * - The inner loop normally "return"s in its first iteration. If the | |
4240 | * eviction group has any evictable rules, then it always returns in | |
4241 | * some iteration. | |
4242 | * | |
4243 | * - The outer loop only iterates more than once if the largest eviction | |
4244 | * group has no evictable rules. | |
4245 | * | |
4246 | * - The outer loop can exit only if table's 'max_flows' is all filled up | |
4247 | * by unevictable rules'. */ | |
4248 | HEAP_FOR_EACH (evg, size_node, &table->eviction_groups_by_size) { | |
4249 | struct rule *rule; | |
4250 | ||
4251 | HEAP_FOR_EACH (rule, evg_node, &evg->rules) { | |
4252 | if (rule->evictable) { | |
4253 | return rule; | |
4254 | } | |
4255 | } | |
4256 | } | |
4257 | ||
4258 | return NULL; | |
4259 | } | |
4260 | ||
4261 | /* Searches 'ofproto' for tables that have more flows than their configured | |
4262 | * maximum and that have flow eviction enabled, and evicts as many flows as | |
4263 | * necessary and currently feasible from them. | |
4264 | * | |
4265 | * This triggers only when an OpenFlow table has N flows in it and then the | |
4266 | * client configures a maximum number of flows less than N. */ | |
4267 | static void | |
4268 | ofproto_evict(struct ofproto *ofproto) | |
4269 | { | |
4270 | struct ofopgroup *group; | |
4271 | struct oftable *table; | |
4272 | ||
4273 | group = ofopgroup_create_unattached(ofproto); | |
4274 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { | |
4275 | while (classifier_count(&table->cls) > table->max_flows | |
4276 | && table->eviction_fields) { | |
4277 | struct rule *rule; | |
4278 | ||
4279 | rule = choose_rule_to_evict(table); | |
4280 | if (!rule || rule->pending) { | |
4281 | break; | |
4282 | } | |
4283 | ||
2b07c8b1 BP |
4284 | ofoperation_create(group, rule, |
4285 | OFOPERATION_DELETE, OFPRR_EVICTION); | |
254750ce BP |
4286 | oftable_remove_rule(rule); |
4287 | ofproto->ofproto_class->rule_destruct(rule); | |
4288 | } | |
4289 | } | |
4290 | ofopgroup_submit(group); | |
4291 | } | |
4292 | \f | |
4293 | /* Eviction groups. */ | |
4294 | ||
4295 | /* Returns the priority to use for an eviction_group that contains 'n_rules' | |
4296 | * rules. The priority contains low-order random bits to ensure that eviction | |
4297 | * groups with the same number of rules are prioritized randomly. */ | |
4298 | static uint32_t | |
4299 | eviction_group_priority(size_t n_rules) | |
4300 | { | |
4301 | uint16_t size = MIN(UINT16_MAX, n_rules); | |
4302 | return (size << 16) | random_uint16(); | |
4303 | } | |
4304 | ||
4305 | /* Updates 'evg', an eviction_group within 'table', following a change that | |
4306 | * adds or removes rules in 'evg'. */ | |
4307 | static void | |
4308 | eviction_group_resized(struct oftable *table, struct eviction_group *evg) | |
4309 | { | |
4310 | heap_change(&table->eviction_groups_by_size, &evg->size_node, | |
4311 | eviction_group_priority(heap_count(&evg->rules))); | |
4312 | } | |
4313 | ||
4314 | /* Destroys 'evg', an eviction_group within 'table': | |
4315 | * | |
4316 | * - Removes all the rules, if any, from 'evg'. (It doesn't destroy the | |
4317 | * rules themselves, just removes them from the eviction group.) | |
4318 | * | |
4319 | * - Removes 'evg' from 'table'. | |
4320 | * | |
4321 | * - Frees 'evg'. */ | |
4322 | static void | |
4323 | eviction_group_destroy(struct oftable *table, struct eviction_group *evg) | |
4324 | { | |
4325 | while (!heap_is_empty(&evg->rules)) { | |
4326 | struct rule *rule; | |
4327 | ||
4328 | rule = CONTAINER_OF(heap_pop(&evg->rules), struct rule, evg_node); | |
4329 | rule->eviction_group = NULL; | |
4330 | } | |
4331 | hmap_remove(&table->eviction_groups_by_id, &evg->id_node); | |
4332 | heap_remove(&table->eviction_groups_by_size, &evg->size_node); | |
4333 | heap_destroy(&evg->rules); | |
4334 | free(evg); | |
4335 | } | |
4336 | ||
4337 | /* Removes 'rule' from its eviction group, if any. */ | |
4338 | static void | |
4339 | eviction_group_remove_rule(struct rule *rule) | |
4340 | { | |
4341 | if (rule->eviction_group) { | |
4342 | struct oftable *table = &rule->ofproto->tables[rule->table_id]; | |
4343 | struct eviction_group *evg = rule->eviction_group; | |
4344 | ||
4345 | rule->eviction_group = NULL; | |
4346 | heap_remove(&evg->rules, &rule->evg_node); | |
4347 | if (heap_is_empty(&evg->rules)) { | |
4348 | eviction_group_destroy(table, evg); | |
4349 | } else { | |
4350 | eviction_group_resized(table, evg); | |
4351 | } | |
4352 | } | |
4353 | } | |
4354 | ||
4355 | /* Hashes the 'rule''s values for the eviction_fields of 'rule''s table, and | |
4356 | * returns the hash value. */ | |
4357 | static uint32_t | |
4358 | eviction_group_hash_rule(struct rule *rule) | |
4359 | { | |
4360 | struct oftable *table = &rule->ofproto->tables[rule->table_id]; | |
4361 | const struct mf_subfield *sf; | |
4362 | uint32_t hash; | |
4363 | ||
4364 | hash = table->eviction_group_id_basis; | |
4365 | for (sf = table->eviction_fields; | |
4366 | sf < &table->eviction_fields[table->n_eviction_fields]; | |
4367 | sf++) | |
4368 | { | |
81a76618 | 4369 | if (mf_are_prereqs_ok(sf->field, &rule->cr.match.flow)) { |
254750ce BP |
4370 | union mf_value value; |
4371 | ||
81a76618 | 4372 | mf_get_value(sf->field, &rule->cr.match.flow, &value); |
254750ce BP |
4373 | if (sf->ofs) { |
4374 | bitwise_zero(&value, sf->field->n_bytes, 0, sf->ofs); | |
4375 | } | |
4376 | if (sf->ofs + sf->n_bits < sf->field->n_bytes * 8) { | |
4377 | unsigned int start = sf->ofs + sf->n_bits; | |
4378 | bitwise_zero(&value, sf->field->n_bytes, start, | |
4379 | sf->field->n_bytes * 8 - start); | |
4380 | } | |
4381 | hash = hash_bytes(&value, sf->field->n_bytes, hash); | |
4382 | } else { | |
4383 | hash = hash_int(hash, 0); | |
4384 | } | |
4385 | } | |
4386 | ||
4387 | return hash; | |
4388 | } | |
4389 | ||
4390 | /* Returns an eviction group within 'table' with the given 'id', creating one | |
4391 | * if necessary. */ | |
4392 | static struct eviction_group * | |
4393 | eviction_group_find(struct oftable *table, uint32_t id) | |
4394 | { | |
4395 | struct eviction_group *evg; | |
4396 | ||
4397 | HMAP_FOR_EACH_WITH_HASH (evg, id_node, id, &table->eviction_groups_by_id) { | |
4398 | return evg; | |
4399 | } | |
4400 | ||
4401 | evg = xmalloc(sizeof *evg); | |
4402 | hmap_insert(&table->eviction_groups_by_id, &evg->id_node, id); | |
4403 | heap_insert(&table->eviction_groups_by_size, &evg->size_node, | |
4404 | eviction_group_priority(0)); | |
4405 | heap_init(&evg->rules); | |
4406 | ||
4407 | return evg; | |
4408 | } | |
4409 | ||
4410 | /* Returns an eviction priority for 'rule'. The return value should be | |
4411 | * interpreted so that higher priorities make a rule more attractive candidates | |
4412 | * for eviction. */ | |
4413 | static uint32_t | |
4414 | rule_eviction_priority(struct rule *rule) | |
4415 | { | |
4416 | long long int hard_expiration; | |
4417 | long long int idle_expiration; | |
4418 | long long int expiration; | |
4419 | uint32_t expiration_offset; | |
4420 | ||
4421 | /* Calculate time of expiration. */ | |
4422 | hard_expiration = (rule->hard_timeout | |
4423 | ? rule->modified + rule->hard_timeout * 1000 | |
4424 | : LLONG_MAX); | |
4425 | idle_expiration = (rule->idle_timeout | |
4426 | ? rule->used + rule->idle_timeout * 1000 | |
4427 | : LLONG_MAX); | |
4428 | expiration = MIN(hard_expiration, idle_expiration); | |
4429 | if (expiration == LLONG_MAX) { | |
4430 | return 0; | |
4431 | } | |
4432 | ||
4433 | /* Calculate the time of expiration as a number of (approximate) seconds | |
4434 | * after program startup. | |
4435 | * | |
4436 | * This should work OK for program runs that last UINT32_MAX seconds or | |
4437 | * less. Therefore, please restart OVS at least once every 136 years. */ | |
4438 | expiration_offset = (expiration >> 10) - (time_boot_msec() >> 10); | |
4439 | ||
4440 | /* Invert the expiration offset because we're using a max-heap. */ | |
4441 | return UINT32_MAX - expiration_offset; | |
4442 | } | |
4443 | ||
4444 | /* Adds 'rule' to an appropriate eviction group for its oftable's | |
4445 | * configuration. Does nothing if 'rule''s oftable doesn't have eviction | |
4446 | * enabled, or if 'rule' is a permanent rule (one that will never expire on its | |
4447 | * own). | |
4448 | * | |
4449 | * The caller must ensure that 'rule' is not already in an eviction group. */ | |
4450 | static void | |
4451 | eviction_group_add_rule(struct rule *rule) | |
4452 | { | |
4453 | struct ofproto *ofproto = rule->ofproto; | |
4454 | struct oftable *table = &ofproto->tables[rule->table_id]; | |
4455 | ||
4456 | if (table->eviction_fields | |
4457 | && (rule->hard_timeout || rule->idle_timeout)) { | |
4458 | struct eviction_group *evg; | |
4459 | ||
4460 | evg = eviction_group_find(table, eviction_group_hash_rule(rule)); | |
4461 | ||
4462 | rule->eviction_group = evg; | |
4463 | heap_insert(&evg->rules, &rule->evg_node, | |
4464 | rule_eviction_priority(rule)); | |
4465 | eviction_group_resized(table, evg); | |
4466 | } | |
4467 | } | |
4468 | \f | |
d0918789 BP |
4469 | /* oftables. */ |
4470 | ||
4471 | /* Initializes 'table'. */ | |
4472 | static void | |
4473 | oftable_init(struct oftable *table) | |
4474 | { | |
5c67e4af | 4475 | memset(table, 0, sizeof *table); |
d0918789 | 4476 | classifier_init(&table->cls); |
ec1c5c7e | 4477 | table->max_flows = UINT_MAX; |
d0918789 BP |
4478 | } |
4479 | ||
254750ce | 4480 | /* Destroys 'table', including its classifier and eviction groups. |
d0918789 BP |
4481 | * |
4482 | * The caller is responsible for freeing 'table' itself. */ | |
4483 | static void | |
4484 | oftable_destroy(struct oftable *table) | |
4485 | { | |
4486 | assert(classifier_is_empty(&table->cls)); | |
254750ce | 4487 | oftable_disable_eviction(table); |
d0918789 | 4488 | classifier_destroy(&table->cls); |
254750ce BP |
4489 | free(table->name); |
4490 | } | |
4491 | ||
4492 | /* Changes the name of 'table' to 'name'. If 'name' is NULL or the empty | |
4493 | * string, then 'table' will use its default name. | |
4494 | * | |
4495 | * This only affects the name exposed for a table exposed through the OpenFlow | |
4496 | * OFPST_TABLE (as printed by "ovs-ofctl dump-tables"). */ | |
4497 | static void | |
4498 | oftable_set_name(struct oftable *table, const char *name) | |
4499 | { | |
4500 | if (name && name[0]) { | |
4501 | int len = strnlen(name, OFP_MAX_TABLE_NAME_LEN); | |
4502 | if (!table->name || strncmp(name, table->name, len)) { | |
4503 | free(table->name); | |
4504 | table->name = xmemdup0(name, len); | |
4505 | } | |
4506 | } else { | |
4507 | free(table->name); | |
4508 | table->name = NULL; | |
4509 | } | |
4510 | } | |
4511 | ||
4512 | /* oftables support a choice of two policies when adding a rule would cause the | |
4513 | * number of flows in the table to exceed the configured maximum number: either | |
4514 | * they can refuse to add the new flow or they can evict some existing flow. | |
4515 | * This function configures the former policy on 'table'. */ | |
4516 | static void | |
4517 | oftable_disable_eviction(struct oftable *table) | |
4518 | { | |
4519 | if (table->eviction_fields) { | |
4520 | struct eviction_group *evg, *next; | |
4521 | ||
4522 | HMAP_FOR_EACH_SAFE (evg, next, id_node, | |
4523 | &table->eviction_groups_by_id) { | |
4524 | eviction_group_destroy(table, evg); | |
4525 | } | |
4526 | hmap_destroy(&table->eviction_groups_by_id); | |
4527 | heap_destroy(&table->eviction_groups_by_size); | |
4528 | ||
4529 | free(table->eviction_fields); | |
4530 | table->eviction_fields = NULL; | |
4531 | table->n_eviction_fields = 0; | |
4532 | } | |
4533 | } | |
4534 | ||
4535 | /* oftables support a choice of two policies when adding a rule would cause the | |
4536 | * number of flows in the table to exceed the configured maximum number: either | |
4537 | * they can refuse to add the new flow or they can evict some existing flow. | |
4538 | * This function configures the latter policy on 'table', with fairness based | |
4539 | * on the values of the 'n_fields' fields specified in 'fields'. (Specifying | |
4540 | * 'n_fields' as 0 disables fairness.) */ | |
4541 | static void | |
4542 | oftable_enable_eviction(struct oftable *table, | |
4543 | const struct mf_subfield *fields, size_t n_fields) | |
4544 | { | |
4545 | struct cls_cursor cursor; | |
4546 | struct rule *rule; | |
4547 | ||
4548 | if (table->eviction_fields | |
4549 | && n_fields == table->n_eviction_fields | |
4550 | && (!n_fields | |
4551 | || !memcmp(fields, table->eviction_fields, | |
4552 | n_fields * sizeof *fields))) { | |
4553 | /* No change. */ | |
4554 | return; | |
4555 | } | |
4556 | ||
4557 | oftable_disable_eviction(table); | |
4558 | ||
4559 | table->n_eviction_fields = n_fields; | |
4560 | table->eviction_fields = xmemdup(fields, n_fields * sizeof *fields); | |
4561 | ||
4562 | table->eviction_group_id_basis = random_uint32(); | |
4563 | hmap_init(&table->eviction_groups_by_id); | |
4564 | heap_init(&table->eviction_groups_by_size); | |
4565 | ||
4566 | cls_cursor_init(&cursor, &table->cls, NULL); | |
4567 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { | |
4568 | eviction_group_add_rule(rule); | |
4569 | } | |
d0918789 BP |
4570 | } |
4571 | ||
4572 | /* Removes 'rule' from the oftable that contains it. */ | |
4573 | static void | |
4574 | oftable_remove_rule(struct rule *rule) | |
4575 | { | |
4576 | struct ofproto *ofproto = rule->ofproto; | |
4577 | struct oftable *table = &ofproto->tables[rule->table_id]; | |
4578 | ||
4579 | classifier_remove(&table->cls, &rule->cr); | |
254750ce | 4580 | eviction_group_remove_rule(rule); |
d0918789 BP |
4581 | } |
4582 | ||
4583 | /* Inserts 'rule' into its oftable. Removes any existing rule from 'rule''s | |
4584 | * oftable that has an identical cls_rule. Returns the rule that was removed, | |
4585 | * if any, and otherwise NULL. */ | |
4586 | static struct rule * | |
4587 | oftable_replace_rule(struct rule *rule) | |
4588 | { | |
4589 | struct ofproto *ofproto = rule->ofproto; | |
4590 | struct oftable *table = &ofproto->tables[rule->table_id]; | |
254750ce | 4591 | struct rule *victim; |
d0918789 | 4592 | |
254750ce BP |
4593 | victim = rule_from_cls_rule(classifier_replace(&table->cls, &rule->cr)); |
4594 | if (victim) { | |
4595 | eviction_group_remove_rule(victim); | |
4596 | } | |
4597 | eviction_group_add_rule(rule); | |
4598 | return victim; | |
d0918789 BP |
4599 | } |
4600 | ||
4601 | /* Removes 'old' from its oftable then, if 'new' is nonnull, inserts 'new'. */ | |
4602 | static void | |
4603 | oftable_substitute_rule(struct rule *old, struct rule *new) | |
4604 | { | |
4605 | if (new) { | |
4606 | oftable_replace_rule(new); | |
4607 | } else { | |
4608 | oftable_remove_rule(old); | |
4609 | } | |
4610 | } | |
4611 | \f | |
abe529af | 4612 | /* unixctl commands. */ |
7aa697dd | 4613 | |
abe529af | 4614 | struct ofproto * |
2ac6bedd | 4615 | ofproto_lookup(const char *name) |
7aa697dd | 4616 | { |
2ac6bedd | 4617 | struct ofproto *ofproto; |
7aa697dd | 4618 | |
2ac6bedd BP |
4619 | HMAP_FOR_EACH_WITH_HASH (ofproto, hmap_node, hash_string(name, 0), |
4620 | &all_ofprotos) { | |
4621 | if (!strcmp(ofproto->name, name)) { | |
4622 | return ofproto; | |
4623 | } | |
7aa697dd | 4624 | } |
2ac6bedd | 4625 | return NULL; |
7aa697dd BP |
4626 | } |
4627 | ||
4628 | static void | |
0e15264f BP |
4629 | ofproto_unixctl_list(struct unixctl_conn *conn, int argc OVS_UNUSED, |
4630 | const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED) | |
7aa697dd | 4631 | { |
7aa697dd | 4632 | struct ofproto *ofproto; |
7aa697dd | 4633 | struct ds results; |
7aa697dd | 4634 | |
7aa697dd | 4635 | ds_init(&results); |
2ac6bedd BP |
4636 | HMAP_FOR_EACH (ofproto, hmap_node, &all_ofprotos) { |
4637 | ds_put_format(&results, "%s\n", ofproto->name); | |
7aa697dd | 4638 | } |
bde9f75d | 4639 | unixctl_command_reply(conn, ds_cstr(&results)); |
7aa697dd | 4640 | ds_destroy(&results); |
7aa697dd BP |
4641 | } |
4642 | ||
4643 | static void | |
4644 | ofproto_unixctl_init(void) | |
4645 | { | |
4646 | static bool registered; | |
4647 | if (registered) { | |
4648 | return; | |
4649 | } | |
4650 | registered = true; | |
4651 | ||
0e15264f BP |
4652 | unixctl_command_register("ofproto/list", "", 0, 0, |
4653 | ofproto_unixctl_list, NULL); | |
064af421 | 4654 | } |
52a90c29 BP |
4655 | \f |
4656 | /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.) | |
4657 | * | |
4658 | * This is deprecated. It is only for compatibility with broken device drivers | |
4659 | * in old versions of Linux that do not properly support VLANs when VLAN | |
4660 | * devices are not used. When broken device drivers are no longer in | |
4661 | * widespread use, we will delete these interfaces. */ | |
4662 | ||
4663 | /* Sets a 1-bit in the 4096-bit 'vlan_bitmap' for each VLAN ID that is matched | |
4664 | * (exactly) by an OpenFlow rule in 'ofproto'. */ | |
4665 | void | |
4666 | ofproto_get_vlan_usage(struct ofproto *ofproto, unsigned long int *vlan_bitmap) | |
4667 | { | |
d0918789 | 4668 | const struct oftable *oftable; |
52a90c29 BP |
4669 | |
4670 | free(ofproto->vlan_bitmap); | |
4671 | ofproto->vlan_bitmap = bitmap_allocate(4096); | |
4672 | ofproto->vlans_changed = false; | |
4673 | ||
d0918789 | 4674 | OFPROTO_FOR_EACH_TABLE (oftable, ofproto) { |
52a90c29 BP |
4675 | const struct cls_table *table; |
4676 | ||
d0918789 | 4677 | HMAP_FOR_EACH (table, hmap_node, &oftable->cls.tables) { |
26720e24 | 4678 | if ((table->wc.masks.vlan_tci & htons(VLAN_VID_MASK)) |
9075907c | 4679 | == htons(VLAN_VID_MASK)) { |
52a90c29 BP |
4680 | const struct cls_rule *rule; |
4681 | ||
4682 | HMAP_FOR_EACH (rule, hmap_node, &table->rules) { | |
81a76618 | 4683 | uint16_t vid = vlan_tci_to_vid(rule->match.flow.vlan_tci); |
52a90c29 BP |
4684 | bitmap_set1(vlan_bitmap, vid); |
4685 | bitmap_set1(ofproto->vlan_bitmap, vid); | |
4686 | } | |
4687 | } | |
4688 | } | |
4689 | } | |
4690 | } | |
4691 | ||
4692 | /* Returns true if new VLANs have come into use by the flow table since the | |
4693 | * last call to ofproto_get_vlan_usage(). | |
4694 | * | |
4695 | * We don't track when old VLANs stop being used. */ | |
4696 | bool | |
4697 | ofproto_has_vlan_usage_changed(const struct ofproto *ofproto) | |
4698 | { | |
4699 | return ofproto->vlans_changed; | |
4700 | } | |
4701 | ||
4702 | /* Configures a VLAN splinter binding between the ports identified by OpenFlow | |
4703 | * port numbers 'vlandev_ofp_port' and 'realdev_ofp_port'. If | |
4704 | * 'realdev_ofp_port' is nonzero, then the VLAN device is enslaved to the real | |
4705 | * device as a VLAN splinter for VLAN ID 'vid'. If 'realdev_ofp_port' is zero, | |
4706 | * then the VLAN device is un-enslaved. */ | |
4707 | int | |
4708 | ofproto_port_set_realdev(struct ofproto *ofproto, uint16_t vlandev_ofp_port, | |
4709 | uint16_t realdev_ofp_port, int vid) | |
4710 | { | |
4711 | struct ofport *ofport; | |
4712 | int error; | |
4713 | ||
4714 | assert(vlandev_ofp_port != realdev_ofp_port); | |
4715 | ||
4716 | ofport = ofproto_get_port(ofproto, vlandev_ofp_port); | |
4717 | if (!ofport) { | |
4718 | VLOG_WARN("%s: cannot set realdev on nonexistent port %"PRIu16, | |
4719 | ofproto->name, vlandev_ofp_port); | |
4720 | return EINVAL; | |
4721 | } | |
4722 | ||
4723 | if (!ofproto->ofproto_class->set_realdev) { | |
4724 | if (!vlandev_ofp_port) { | |
4725 | return 0; | |
4726 | } | |
4727 | VLOG_WARN("%s: vlan splinters not supported", ofproto->name); | |
4728 | return EOPNOTSUPP; | |
4729 | } | |
4730 | ||
4731 | error = ofproto->ofproto_class->set_realdev(ofport, realdev_ofp_port, vid); | |
4732 | if (error) { | |
4733 | VLOG_WARN("%s: setting realdev on port %"PRIu16" (%s) failed (%s)", | |
4734 | ofproto->name, vlandev_ofp_port, | |
4735 | netdev_get_name(ofport->netdev), strerror(error)); | |
4736 | } | |
4737 | return error; | |
4738 | } |