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064af421 | 1 | /* |
db5ce514 | 2 | * Copyright (c) 2009, 2010, 2011 Nicira Networks. |
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> | |
10a24935 | 24 | #include "byte-order.h" |
064af421 | 25 | #include "classifier.h" |
19a87e36 | 26 | #include "connmgr.h" |
064af421 | 27 | #include "coverage.h" |
4f2cad2c | 28 | #include "dynamic-string.h" |
ca0f572c BP |
29 | #include "hash.h" |
30 | #include "hmap.h" | |
064af421 | 31 | #include "netdev.h" |
09246b99 | 32 | #include "nx-match.h" |
064af421 | 33 | #include "ofp-print.h" |
fa37b408 | 34 | #include "ofp-util.h" |
064af421 BP |
35 | #include "ofpbuf.h" |
36 | #include "openflow/nicira-ext.h" | |
37 | #include "openflow/openflow.h" | |
064af421 BP |
38 | #include "packets.h" |
39 | #include "pinsched.h" | |
40 | #include "pktbuf.h" | |
41 | #include "poll-loop.h" | |
d08a2e92 | 42 | #include "private.h" |
064af421 | 43 | #include "shash.h" |
b3c01ed3 | 44 | #include "sset.h" |
064af421 | 45 | #include "timeval.h" |
c4617b3c | 46 | #include "unaligned.h" |
4f2cad2c | 47 | #include "unixctl.h" |
5136ce49 | 48 | #include "vlog.h" |
064af421 | 49 | |
d98e6007 | 50 | VLOG_DEFINE_THIS_MODULE(ofproto); |
064af421 | 51 | |
d76f09ea | 52 | COVERAGE_DEFINE(ofproto_agg_request); |
d76f09ea | 53 | COVERAGE_DEFINE(ofproto_error); |
d76f09ea BP |
54 | COVERAGE_DEFINE(ofproto_flows_req); |
55 | COVERAGE_DEFINE(ofproto_flush); | |
d76f09ea | 56 | COVERAGE_DEFINE(ofproto_no_packet_in); |
d76f09ea BP |
57 | COVERAGE_DEFINE(ofproto_packet_out); |
58 | COVERAGE_DEFINE(ofproto_queue_req); | |
59 | COVERAGE_DEFINE(ofproto_recv_openflow); | |
60 | COVERAGE_DEFINE(ofproto_reinit_ports); | |
d76f09ea BP |
61 | COVERAGE_DEFINE(ofproto_uninstallable); |
62 | COVERAGE_DEFINE(ofproto_update_port); | |
63 | ||
abe529af BP |
64 | static void ofport_destroy__(struct ofport *); |
65 | static void ofport_destroy(struct ofport *); | |
064af421 | 66 | |
abe529af BP |
67 | static int rule_create(struct ofproto *, const struct cls_rule *, |
68 | const union ofp_action *, size_t n_actions, | |
69 | uint16_t idle_timeout, uint16_t hard_timeout, | |
70 | ovs_be64 flow_cookie, bool send_flow_removed, | |
71 | struct rule **rulep); | |
064af421 | 72 | |
abe529af BP |
73 | static uint64_t pick_datapath_id(const struct ofproto *); |
74 | static uint64_t pick_fallback_dpid(void); | |
f29152ca | 75 | |
abe529af BP |
76 | static void ofproto_destroy__(struct ofproto *); |
77 | static void ofproto_flush_flows__(struct ofproto *); | |
f29152ca | 78 | |
abe529af BP |
79 | static void ofproto_rule_destroy__(struct rule *); |
80 | static void ofproto_rule_send_removed(struct rule *, uint8_t reason); | |
81 | static void ofproto_rule_remove(struct rule *); | |
7aa697dd | 82 | |
abe529af | 83 | static void handle_openflow(struct ofconn *, struct ofpbuf *); |
ebe482fd | 84 | |
abe529af BP |
85 | static void update_port(struct ofproto *, const char *devname); |
86 | static int init_ports(struct ofproto *); | |
87 | static void reinit_ports(struct ofproto *); | |
f29152ca | 88 | |
abe529af | 89 | static void ofproto_unixctl_init(void); |
f29152ca | 90 | |
abe529af BP |
91 | /* All registered ofproto classes, in probe order. */ |
92 | static const struct ofproto_class **ofproto_classes; | |
93 | static size_t n_ofproto_classes; | |
94 | static size_t allocated_ofproto_classes; | |
f29152ca | 95 | |
f797957a | 96 | /* Map from datapath name to struct ofproto, for use by unixctl commands. */ |
abe529af | 97 | static struct hmap all_ofprotos = HMAP_INITIALIZER(&all_ofprotos); |
f29152ca | 98 | |
abe529af | 99 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); |
064af421 | 100 | |
abe529af BP |
101 | static void |
102 | ofproto_initialize(void) | |
103 | { | |
104 | static bool inited; | |
bcf84111 | 105 | |
abe529af BP |
106 | if (!inited) { |
107 | inited = true; | |
108 | ofproto_class_register(&ofproto_dpif_class); | |
109 | } | |
110 | } | |
064af421 | 111 | |
abe529af BP |
112 | /* 'type' should be a normalized datapath type, as returned by |
113 | * ofproto_normalize_type(). Returns the corresponding ofproto_class | |
114 | * structure, or a null pointer if there is none registered for 'type'. */ | |
115 | static const struct ofproto_class * | |
116 | ofproto_class_find__(const char *type) | |
117 | { | |
118 | size_t i; | |
7aa697dd | 119 | |
abe529af BP |
120 | ofproto_initialize(); |
121 | for (i = 0; i < n_ofproto_classes; i++) { | |
122 | const struct ofproto_class *class = ofproto_classes[i]; | |
123 | struct sset types; | |
124 | bool found; | |
064af421 | 125 | |
abe529af BP |
126 | sset_init(&types); |
127 | class->enumerate_types(&types); | |
128 | found = sset_contains(&types, type); | |
129 | sset_destroy(&types); | |
76ce9432 | 130 | |
abe529af BP |
131 | if (found) { |
132 | return class; | |
133 | } | |
134 | } | |
135 | VLOG_WARN("unknown datapath type %s", type); | |
136 | return NULL; | |
137 | } | |
4a4cdb3b | 138 | |
abe529af BP |
139 | /* Registers a new ofproto class. After successful registration, new ofprotos |
140 | * of that type can be created using ofproto_create(). */ | |
141 | int | |
142 | ofproto_class_register(const struct ofproto_class *new_class) | |
143 | { | |
144 | size_t i; | |
064af421 | 145 | |
abe529af BP |
146 | for (i = 0; i < n_ofproto_classes; i++) { |
147 | if (ofproto_classes[i] == new_class) { | |
148 | return EEXIST; | |
149 | } | |
150 | } | |
064af421 | 151 | |
abe529af BP |
152 | if (n_ofproto_classes >= allocated_ofproto_classes) { |
153 | ofproto_classes = x2nrealloc(ofproto_classes, | |
154 | &allocated_ofproto_classes, | |
155 | sizeof *ofproto_classes); | |
156 | } | |
157 | ofproto_classes[n_ofproto_classes++] = new_class; | |
158 | return 0; | |
159 | } | |
064af421 | 160 | |
abe529af BP |
161 | /* Unregisters a datapath provider. 'type' must have been previously |
162 | * registered and not currently be in use by any ofprotos. After | |
163 | * unregistration new datapaths of that type cannot be opened using | |
164 | * ofproto_create(). */ | |
165 | int | |
166 | ofproto_class_unregister(const struct ofproto_class *class) | |
167 | { | |
168 | size_t i; | |
fa066f01 | 169 | |
abe529af BP |
170 | for (i = 0; i < n_ofproto_classes; i++) { |
171 | if (ofproto_classes[i] == class) { | |
172 | for (i++; i < n_ofproto_classes; i++) { | |
173 | ofproto_classes[i - 1] = ofproto_classes[i]; | |
174 | } | |
175 | n_ofproto_classes--; | |
176 | return 0; | |
177 | } | |
178 | } | |
179 | VLOG_WARN("attempted to unregister an ofproto class that is not " | |
180 | "registered"); | |
181 | return EAFNOSUPPORT; | |
182 | } | |
7aa697dd | 183 | |
f79e673f BP |
184 | /* Clears 'types' and enumerates all registered ofproto types into it. The |
185 | * caller must first initialize the sset. */ | |
186 | void | |
187 | ofproto_enumerate_types(struct sset *types) | |
188 | { | |
abe529af BP |
189 | size_t i; |
190 | ||
191 | ofproto_initialize(); | |
192 | for (i = 0; i < n_ofproto_classes; i++) { | |
193 | ofproto_classes[i]->enumerate_types(types); | |
194 | } | |
f79e673f BP |
195 | } |
196 | ||
197 | /* Returns the fully spelled out name for the given ofproto 'type'. | |
198 | * | |
199 | * Normalized type string can be compared with strcmp(). Unnormalized type | |
200 | * string might be the same even if they have different spellings. */ | |
201 | const char * | |
202 | ofproto_normalize_type(const char *type) | |
203 | { | |
abe529af | 204 | return type && type[0] ? type : "system"; |
f79e673f BP |
205 | } |
206 | ||
207 | /* Clears 'names' and enumerates the names of all known created ofprotos with | |
208 | * the given 'type'. The caller must first initialize the sset. Returns 0 if | |
209 | * successful, otherwise a positive errno value. | |
210 | * | |
211 | * Some kinds of datapaths might not be practically enumerable. This is not | |
212 | * considered an error. */ | |
213 | int | |
214 | ofproto_enumerate_names(const char *type, struct sset *names) | |
215 | { | |
abe529af BP |
216 | const struct ofproto_class *class = ofproto_class_find__(type); |
217 | return class ? class->enumerate_names(type, names) : EAFNOSUPPORT; | |
218 | } | |
f79e673f | 219 | |
064af421 | 220 | int |
abe529af | 221 | ofproto_create(const char *datapath_name, const char *datapath_type, |
064af421 BP |
222 | struct ofproto **ofprotop) |
223 | { | |
abe529af BP |
224 | const struct ofproto_class *class; |
225 | struct ofproto *ofproto; | |
064af421 BP |
226 | int error; |
227 | ||
228 | *ofprotop = NULL; | |
229 | ||
abe529af | 230 | ofproto_initialize(); |
7aa697dd BP |
231 | ofproto_unixctl_init(); |
232 | ||
abe529af BP |
233 | datapath_type = ofproto_normalize_type(datapath_type); |
234 | class = ofproto_class_find__(datapath_type); | |
235 | if (!class) { | |
236 | VLOG_WARN("could not create datapath %s of unknown type %s", | |
237 | datapath_name, datapath_type); | |
238 | return EAFNOSUPPORT; | |
064af421 BP |
239 | } |
240 | ||
abe529af BP |
241 | ofproto = class->alloc(); |
242 | if (!ofproto) { | |
243 | VLOG_ERR("failed to allocate datapath %s of type %s", | |
244 | datapath_name, datapath_type); | |
245 | return ENOMEM; | |
246 | } | |
247 | ||
248 | /* Initialize. */ | |
249 | memset(ofproto, 0, sizeof *ofproto); | |
250 | ofproto->ofproto_class = class; | |
251 | ofproto->name = xstrdup(datapath_name); | |
252 | ofproto->type = xstrdup(datapath_type); | |
253 | hmap_insert(&all_ofprotos, &ofproto->hmap_node, | |
254 | hash_string(ofproto->name, 0)); | |
255 | ofproto->datapath_id = 0; | |
256 | ofproto->fallback_dpid = pick_fallback_dpid(); | |
257 | ofproto->mfr_desc = xstrdup(DEFAULT_MFR_DESC); | |
258 | ofproto->hw_desc = xstrdup(DEFAULT_HW_DESC); | |
259 | ofproto->sw_desc = xstrdup(DEFAULT_SW_DESC); | |
260 | ofproto->serial_desc = xstrdup(DEFAULT_SERIAL_DESC); | |
261 | ofproto->dp_desc = xstrdup(DEFAULT_DP_DESC); | |
262 | ofproto->netdev_monitor = netdev_monitor_create(); | |
263 | hmap_init(&ofproto->ports); | |
264 | shash_init(&ofproto->port_by_name); | |
265 | classifier_init(&ofproto->cls); | |
266 | ofproto->connmgr = connmgr_create(ofproto, datapath_name, datapath_name); | |
267 | ||
268 | error = ofproto->ofproto_class->construct(ofproto); | |
19a87e36 | 269 | if (error) { |
abe529af BP |
270 | VLOG_ERR("failed to open datapath %s: %s", |
271 | datapath_name, strerror(error)); | |
272 | ofproto_destroy__(ofproto); | |
19a87e36 BP |
273 | return error; |
274 | } | |
275 | ||
abe529af BP |
276 | ofproto->datapath_id = pick_datapath_id(ofproto); |
277 | VLOG_INFO("using datapath ID %016"PRIx64, ofproto->datapath_id); | |
278 | init_ports(ofproto); | |
d4cb239a | 279 | |
abe529af | 280 | *ofprotop = ofproto; |
064af421 BP |
281 | return 0; |
282 | } | |
283 | ||
284 | void | |
285 | ofproto_set_datapath_id(struct ofproto *p, uint64_t datapath_id) | |
286 | { | |
287 | uint64_t old_dpid = p->datapath_id; | |
fa60c019 | 288 | p->datapath_id = datapath_id ? datapath_id : pick_datapath_id(p); |
064af421 | 289 | if (p->datapath_id != old_dpid) { |
b123cc3c | 290 | VLOG_INFO("datapath ID changed to %016"PRIx64, p->datapath_id); |
76ce9432 BP |
291 | |
292 | /* Force all active connections to reconnect, since there is no way to | |
293 | * notify a controller that the datapath ID has changed. */ | |
fa05809b | 294 | ofproto_reconnect_controllers(p); |
064af421 BP |
295 | } |
296 | } | |
297 | ||
76ce9432 BP |
298 | void |
299 | ofproto_set_controllers(struct ofproto *p, | |
300 | const struct ofproto_controller *controllers, | |
301 | size_t n_controllers) | |
302 | { | |
19a87e36 | 303 | connmgr_set_controllers(p->connmgr, controllers, n_controllers); |
064af421 BP |
304 | } |
305 | ||
31681a5d JP |
306 | void |
307 | ofproto_set_fail_mode(struct ofproto *p, enum ofproto_fail_mode fail_mode) | |
308 | { | |
19a87e36 | 309 | connmgr_set_fail_mode(p->connmgr, fail_mode); |
31681a5d JP |
310 | } |
311 | ||
fa05809b BP |
312 | /* Drops the connections between 'ofproto' and all of its controllers, forcing |
313 | * them to reconnect. */ | |
314 | void | |
315 | ofproto_reconnect_controllers(struct ofproto *ofproto) | |
316 | { | |
19a87e36 | 317 | connmgr_reconnect(ofproto->connmgr); |
917e50e1 BP |
318 | } |
319 | ||
320 | /* Sets the 'n' TCP port addresses in 'extras' as ones to which 'ofproto''s | |
321 | * in-band control should guarantee access, in the same way that in-band | |
322 | * control guarantees access to OpenFlow controllers. */ | |
323 | void | |
324 | ofproto_set_extra_in_band_remotes(struct ofproto *ofproto, | |
325 | const struct sockaddr_in *extras, size_t n) | |
326 | { | |
19a87e36 | 327 | connmgr_set_extra_in_band_remotes(ofproto->connmgr, extras, n); |
917e50e1 BP |
328 | } |
329 | ||
b1da6250 BP |
330 | /* Sets the OpenFlow queue used by flows set up by in-band control on |
331 | * 'ofproto' to 'queue_id'. If 'queue_id' is negative, then in-band control | |
332 | * flows will use the default queue. */ | |
333 | void | |
334 | ofproto_set_in_band_queue(struct ofproto *ofproto, int queue_id) | |
335 | { | |
19a87e36 | 336 | connmgr_set_in_band_queue(ofproto->connmgr, queue_id); |
b1da6250 BP |
337 | } |
338 | ||
064af421 BP |
339 | void |
340 | ofproto_set_desc(struct ofproto *p, | |
5a719c38 JP |
341 | const char *mfr_desc, const char *hw_desc, |
342 | const char *sw_desc, const char *serial_desc, | |
8abc4ed7 | 343 | const char *dp_desc) |
064af421 | 344 | { |
5a719c38 JP |
345 | struct ofp_desc_stats *ods; |
346 | ||
347 | if (mfr_desc) { | |
348 | if (strlen(mfr_desc) >= sizeof ods->mfr_desc) { | |
349 | VLOG_WARN("truncating mfr_desc, must be less than %zu characters", | |
350 | sizeof ods->mfr_desc); | |
351 | } | |
352 | free(p->mfr_desc); | |
353 | p->mfr_desc = xstrdup(mfr_desc); | |
064af421 | 354 | } |
5a719c38 JP |
355 | if (hw_desc) { |
356 | if (strlen(hw_desc) >= sizeof ods->hw_desc) { | |
357 | VLOG_WARN("truncating hw_desc, must be less than %zu characters", | |
358 | sizeof ods->hw_desc); | |
359 | } | |
360 | free(p->hw_desc); | |
361 | p->hw_desc = xstrdup(hw_desc); | |
064af421 | 362 | } |
5a719c38 JP |
363 | if (sw_desc) { |
364 | if (strlen(sw_desc) >= sizeof ods->sw_desc) { | |
365 | VLOG_WARN("truncating sw_desc, must be less than %zu characters", | |
366 | sizeof ods->sw_desc); | |
367 | } | |
368 | free(p->sw_desc); | |
369 | p->sw_desc = xstrdup(sw_desc); | |
370 | } | |
371 | if (serial_desc) { | |
372 | if (strlen(serial_desc) >= sizeof ods->serial_num) { | |
373 | VLOG_WARN("truncating serial_desc, must be less than %zu " | |
374 | "characters", | |
375 | sizeof ods->serial_num); | |
376 | } | |
377 | free(p->serial_desc); | |
378 | p->serial_desc = xstrdup(serial_desc); | |
064af421 | 379 | } |
8abc4ed7 | 380 | if (dp_desc) { |
5a719c38 JP |
381 | if (strlen(dp_desc) >= sizeof ods->dp_desc) { |
382 | VLOG_WARN("truncating dp_desc, must be less than %zu characters", | |
383 | sizeof ods->dp_desc); | |
384 | } | |
8abc4ed7 JP |
385 | free(p->dp_desc); |
386 | p->dp_desc = xstrdup(dp_desc); | |
387 | } | |
064af421 BP |
388 | } |
389 | ||
064af421 | 390 | int |
81e2083f | 391 | ofproto_set_snoops(struct ofproto *ofproto, const struct sset *snoops) |
064af421 | 392 | { |
19a87e36 | 393 | return connmgr_set_snoops(ofproto->connmgr, snoops); |
064af421 BP |
394 | } |
395 | ||
396 | int | |
0193b2af JG |
397 | ofproto_set_netflow(struct ofproto *ofproto, |
398 | const struct netflow_options *nf_options) | |
064af421 | 399 | { |
abe529af BP |
400 | if (nf_options && sset_is_empty(&nf_options->collectors)) { |
401 | nf_options = NULL; | |
402 | } | |
403 | ||
404 | if (ofproto->ofproto_class->set_netflow) { | |
405 | return ofproto->ofproto_class->set_netflow(ofproto, nf_options); | |
064af421 | 406 | } else { |
abe529af | 407 | return nf_options ? EOPNOTSUPP : 0; |
064af421 BP |
408 | } |
409 | } | |
410 | ||
abe529af | 411 | int |
72b06300 BP |
412 | ofproto_set_sflow(struct ofproto *ofproto, |
413 | const struct ofproto_sflow_options *oso) | |
414 | { | |
abe529af BP |
415 | if (oso && sset_is_empty(&oso->targets)) { |
416 | oso = NULL; | |
417 | } | |
72b06300 | 418 | |
abe529af BP |
419 | if (ofproto->ofproto_class->set_sflow) { |
420 | return ofproto->ofproto_class->set_sflow(ofproto, oso); | |
72b06300 | 421 | } else { |
abe529af | 422 | return oso ? EOPNOTSUPP : 0; |
72b06300 BP |
423 | } |
424 | } | |
e7934396 BP |
425 | \f |
426 | /* Connectivity Fault Management configuration. */ | |
427 | ||
892815f5 | 428 | /* Clears the CFM configuration from 'ofp_port' on 'ofproto'. */ |
e7934396 | 429 | void |
892815f5 | 430 | ofproto_port_clear_cfm(struct ofproto *ofproto, uint16_t ofp_port) |
e7934396 | 431 | { |
abe529af BP |
432 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
433 | if (ofport && ofproto->ofproto_class->set_cfm) { | |
434 | ofproto->ofproto_class->set_cfm(ofport, NULL, NULL, 0); | |
e7934396 BP |
435 | } |
436 | } | |
72b06300 | 437 | |
892815f5 | 438 | /* Configures connectivity fault management on 'ofp_port' in 'ofproto'. Takes |
e7934396 BP |
439 | * basic configuration from the configuration members in 'cfm', and the set of |
440 | * remote maintenance points from the 'n_remote_mps' elements in 'remote_mps'. | |
441 | * Ignores the statistics members of 'cfm'. | |
442 | * | |
892815f5 | 443 | * This function has no effect if 'ofproto' does not have a port 'ofp_port'. */ |
e7934396 | 444 | void |
892815f5 | 445 | ofproto_port_set_cfm(struct ofproto *ofproto, uint16_t ofp_port, |
35c33856 BP |
446 | const struct cfm *cfm, |
447 | const uint16_t *remote_mps, size_t n_remote_mps) | |
e7934396 BP |
448 | { |
449 | struct ofport *ofport; | |
abe529af | 450 | int error; |
e7934396 | 451 | |
abe529af | 452 | ofport = ofproto_get_port(ofproto, ofp_port); |
e7934396 | 453 | if (!ofport) { |
892815f5 BP |
454 | VLOG_WARN("%s: cannot configure CFM on nonexistent port %"PRIu16, |
455 | ofproto->name, ofp_port); | |
e7934396 BP |
456 | return; |
457 | } | |
458 | ||
abe529af BP |
459 | error = (ofproto->ofproto_class->set_cfm |
460 | ? ofproto->ofproto_class->set_cfm(ofport, cfm, | |
461 | remote_mps, n_remote_mps) | |
462 | : EOPNOTSUPP); | |
463 | if (error) { | |
464 | VLOG_WARN("%s: CFM configuration on port %"PRIu16" (%s) failed (%s)", | |
465 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), | |
466 | strerror(error)); | |
e7934396 BP |
467 | } |
468 | } | |
469 | ||
892815f5 | 470 | /* Returns the connectivity fault management object associated with 'ofp_port' |
e7934396 | 471 | * within 'ofproto', or a null pointer if 'ofproto' does not have a port |
892815f5 BP |
472 | * 'ofp_port' or if that port does not have CFM configured. The caller must |
473 | * not modify or destroy the returned object. */ | |
e7934396 | 474 | const struct cfm * |
892815f5 | 475 | ofproto_port_get_cfm(struct ofproto *ofproto, uint16_t ofp_port) |
e7934396 | 476 | { |
abe529af BP |
477 | struct ofport *ofport; |
478 | const struct cfm *cfm; | |
479 | ||
480 | ofport = ofproto_get_port(ofproto, ofp_port); | |
481 | return (ofport | |
482 | && ofproto->ofproto_class->get_cfm | |
483 | && !ofproto->ofproto_class->get_cfm(ofport, &cfm)) ? cfm : NULL; | |
e7934396 | 484 | } |
fa066f01 BP |
485 | |
486 | /* Checks the status of LACP negotiation for 'ofp_port' within ofproto. | |
487 | * Returns 1 if LACP partner information for 'ofp_port' is up-to-date, | |
488 | * 0 if LACP partner information is not current (generally indicating a | |
489 | * connectivity problem), or -1 if LACP is not enabled on 'ofp_port'. */ | |
490 | int | |
491 | ofproto_port_is_lacp_current(struct ofproto *ofproto, uint16_t ofp_port) | |
492 | { | |
abe529af BP |
493 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
494 | return (ofport && ofproto->ofproto_class->port_is_lacp_current | |
495 | ? ofproto->ofproto_class->port_is_lacp_current(ofport) | |
fa066f01 BP |
496 | : -1); |
497 | } | |
e7934396 | 498 | \f |
fa066f01 BP |
499 | /* Bundles. */ |
500 | ||
abe529af BP |
501 | /* Registers a "bundle" associated with client data pointer 'aux' in 'ofproto'. |
502 | * A bundle is the same concept as a Port in OVSDB, that is, it consists of one | |
503 | * or more "slave" devices (Interfaces, in OVSDB) along with a VLAN | |
504 | * configuration plus, if there is more than one slave, a bonding | |
505 | * configuration. | |
506 | * | |
507 | * If 'aux' is already registered then this function updates its configuration | |
508 | * to 's'. Otherwise, this function registers a new bundle. | |
509 | * | |
510 | * Bundles only affect the NXAST_AUTOPATH action and output to the OFPP_NORMAL | |
511 | * port. */ | |
512 | int | |
513 | ofproto_bundle_register(struct ofproto *ofproto, void *aux, | |
514 | const struct ofproto_bundle_settings *s) | |
fa066f01 | 515 | { |
abe529af BP |
516 | return (ofproto->ofproto_class->bundle_set |
517 | ? ofproto->ofproto_class->bundle_set(ofproto, aux, s) | |
518 | : EOPNOTSUPP); | |
fa066f01 BP |
519 | } |
520 | ||
abe529af BP |
521 | /* Unregisters the bundle registered on 'ofproto' with auxiliary data 'aux'. |
522 | * If no such bundle has been registered, this has no effect. */ | |
523 | int | |
524 | ofproto_bundle_unregister(struct ofproto *ofproto, void *aux) | |
fa066f01 | 525 | { |
abe529af | 526 | return ofproto_bundle_register(ofproto, aux, NULL); |
fa066f01 BP |
527 | } |
528 | ||
abe529af BP |
529 | \f |
530 | /* Registers a mirror associated with client data pointer 'aux' in 'ofproto'. | |
531 | * If 'aux' is already registered then this function updates its configuration | |
532 | * to 's'. Otherwise, this function registers a new mirror. | |
533 | * | |
534 | * Mirrors affect only the treatment of packets output to the OFPP_NORMAL | |
535 | * port. */ | |
536 | int | |
537 | ofproto_mirror_register(struct ofproto *ofproto, void *aux, | |
538 | const struct ofproto_mirror_settings *s) | |
fa066f01 | 539 | { |
abe529af BP |
540 | return (ofproto->ofproto_class->mirror_set |
541 | ? ofproto->ofproto_class->mirror_set(ofproto, aux, s) | |
542 | : EOPNOTSUPP); | |
fa066f01 BP |
543 | } |
544 | ||
abe529af BP |
545 | /* Unregisters the mirror registered on 'ofproto' with auxiliary data 'aux'. |
546 | * If no mirror has been registered, this has no effect. */ | |
547 | int | |
548 | ofproto_mirror_unregister(struct ofproto *ofproto, void *aux) | |
fa066f01 | 549 | { |
abe529af | 550 | return ofproto_mirror_register(ofproto, aux, NULL); |
fa066f01 BP |
551 | } |
552 | ||
abe529af BP |
553 | /* Configures the VLANs whose bits are set to 1 in 'flood_vlans' as VLANs on |
554 | * which all packets are flooded, instead of using MAC learning. If | |
555 | * 'flood_vlans' is NULL, then MAC learning applies to all VLANs. | |
556 | * | |
557 | * Flood VLANs affect only the treatment of packets output to the OFPP_NORMAL | |
558 | * port. */ | |
559 | int | |
560 | ofproto_set_flood_vlans(struct ofproto *ofproto, unsigned long *flood_vlans) | |
fa066f01 | 561 | { |
abe529af BP |
562 | return (ofproto->ofproto_class->set_flood_vlans |
563 | ? ofproto->ofproto_class->set_flood_vlans(ofproto, flood_vlans) | |
564 | : EOPNOTSUPP); | |
565 | } | |
fa066f01 | 566 | |
abe529af BP |
567 | /* Returns true if 'aux' is a registered bundle that is currently in use as the |
568 | * output for a mirror. */ | |
569 | bool | |
570 | ofproto_is_mirror_output_bundle(struct ofproto *ofproto, void *aux) | |
571 | { | |
572 | return (ofproto->ofproto_class->is_mirror_output_bundle | |
573 | ? ofproto->ofproto_class->is_mirror_output_bundle(ofproto, aux) | |
574 | : false); | |
575 | } | |
576 | \f | |
577 | bool | |
578 | ofproto_has_snoops(const struct ofproto *ofproto) | |
579 | { | |
580 | return connmgr_has_snoops(ofproto->connmgr); | |
fa066f01 BP |
581 | } |
582 | ||
583 | void | |
abe529af | 584 | ofproto_get_snoops(const struct ofproto *ofproto, struct sset *snoops) |
fa066f01 | 585 | { |
abe529af BP |
586 | connmgr_get_snoops(ofproto->connmgr, snoops); |
587 | } | |
fa066f01 | 588 | |
abe529af BP |
589 | static void |
590 | ofproto_destroy__(struct ofproto *ofproto) | |
591 | { | |
592 | connmgr_destroy(ofproto->connmgr); | |
fa066f01 | 593 | |
abe529af BP |
594 | hmap_remove(&all_ofprotos, &ofproto->hmap_node); |
595 | free(ofproto->name); | |
596 | free(ofproto->mfr_desc); | |
597 | free(ofproto->hw_desc); | |
598 | free(ofproto->sw_desc); | |
599 | free(ofproto->serial_desc); | |
600 | free(ofproto->dp_desc); | |
601 | netdev_monitor_destroy(ofproto->netdev_monitor); | |
602 | hmap_destroy(&ofproto->ports); | |
603 | shash_destroy(&ofproto->port_by_name); | |
604 | classifier_destroy(&ofproto->cls); | |
fa066f01 | 605 | |
abe529af BP |
606 | ofproto->ofproto_class->dealloc(ofproto); |
607 | } | |
fa066f01 | 608 | |
abe529af BP |
609 | void |
610 | ofproto_destroy(struct ofproto *p) | |
611 | { | |
612 | struct ofport *ofport, *next_ofport; | |
fa066f01 | 613 | |
abe529af | 614 | if (!p) { |
fa066f01 BP |
615 | return; |
616 | } | |
617 | ||
abe529af BP |
618 | ofproto_flush_flows__(p); |
619 | HMAP_FOR_EACH_SAFE (ofport, next_ofport, hmap_node, &p->ports) { | |
620 | hmap_remove(&p->ports, &ofport->hmap_node); | |
621 | ofport_destroy(ofport); | |
fa066f01 BP |
622 | } |
623 | ||
abe529af BP |
624 | p->ofproto_class->destruct(p); |
625 | ofproto_destroy__(p); | |
626 | } | |
fa066f01 | 627 | |
abe529af BP |
628 | /* Destroys the datapath with the respective 'name' and 'type'. With the Linux |
629 | * kernel datapath, for example, this destroys the datapath in the kernel, and | |
630 | * with the netdev-based datapath, it tears down the data structures that | |
631 | * represent the datapath. | |
632 | * | |
633 | * The datapath should not be currently open as an ofproto. */ | |
634 | int | |
635 | ofproto_delete(const char *name, const char *type) | |
636 | { | |
637 | const struct ofproto_class *class = ofproto_class_find__(type); | |
638 | return (!class ? EAFNOSUPPORT | |
639 | : !class->del ? EACCES | |
640 | : class->del(type, name)); | |
641 | } | |
fa066f01 | 642 | |
abe529af BP |
643 | static void |
644 | process_port_change(struct ofproto *ofproto, int error, char *devname) | |
645 | { | |
646 | if (error == ENOBUFS) { | |
647 | reinit_ports(ofproto); | |
648 | } else if (!error) { | |
649 | update_port(ofproto, devname); | |
650 | free(devname); | |
fa066f01 BP |
651 | } |
652 | } | |
653 | ||
abe529af BP |
654 | int |
655 | ofproto_run(struct ofproto *p) | |
064af421 | 656 | { |
abe529af BP |
657 | char *devname; |
658 | int error; | |
fa066f01 | 659 | |
abe529af BP |
660 | error = p->ofproto_class->run(p); |
661 | if (error == ENODEV) { | |
662 | /* Someone destroyed the datapath behind our back. The caller | |
663 | * better destroy us and give up, because we're just going to | |
664 | * spin from here on out. */ | |
665 | static struct vlog_rate_limit rl2 = VLOG_RATE_LIMIT_INIT(1, 5); | |
666 | VLOG_ERR_RL(&rl2, "%s: datapath was destroyed externally", | |
667 | p->name); | |
668 | return ENODEV; | |
fa066f01 BP |
669 | } |
670 | ||
5bf0e941 BP |
671 | if (p->ofproto_class->port_poll) { |
672 | while ((error = p->ofproto_class->port_poll(p, &devname)) != EAGAIN) { | |
673 | process_port_change(p, error, devname); | |
674 | } | |
fa066f01 | 675 | } |
abe529af BP |
676 | while ((error = netdev_monitor_poll(p->netdev_monitor, |
677 | &devname)) != EAGAIN) { | |
678 | process_port_change(p, error, devname); | |
fa066f01 BP |
679 | } |
680 | ||
abe529af BP |
681 | connmgr_run(p->connmgr, handle_openflow); |
682 | ||
683 | return 0; | |
064af421 BP |
684 | } |
685 | ||
fa066f01 | 686 | void |
abe529af | 687 | ofproto_wait(struct ofproto *p) |
abdfe474 | 688 | { |
abe529af | 689 | p->ofproto_class->wait(p); |
5bf0e941 BP |
690 | if (p->ofproto_class->port_poll_wait) { |
691 | p->ofproto_class->port_poll_wait(p); | |
692 | } | |
abe529af BP |
693 | netdev_monitor_poll_wait(p->netdev_monitor); |
694 | connmgr_wait(p->connmgr); | |
fa066f01 BP |
695 | } |
696 | ||
abe529af BP |
697 | bool |
698 | ofproto_is_alive(const struct ofproto *p) | |
fa066f01 | 699 | { |
abe529af | 700 | return connmgr_has_controllers(p->connmgr); |
064af421 BP |
701 | } |
702 | ||
bffc0589 | 703 | void |
2cdcb898 | 704 | ofproto_get_ofproto_controller_info(const struct ofproto *ofproto, |
bffc0589 AE |
705 | struct shash *info) |
706 | { | |
19a87e36 | 707 | connmgr_get_controller_info(ofproto->connmgr, info); |
bffc0589 AE |
708 | } |
709 | ||
710 | void | |
711 | ofproto_free_ofproto_controller_info(struct shash *info) | |
712 | { | |
713 | struct shash_node *node; | |
714 | ||
715 | SHASH_FOR_EACH (node, info) { | |
716 | struct ofproto_controller_info *cinfo = node->data; | |
717 | while (cinfo->pairs.n) { | |
718 | free((char *) cinfo->pairs.values[--cinfo->pairs.n]); | |
719 | } | |
720 | free(cinfo); | |
721 | } | |
722 | shash_destroy(info); | |
723 | } | |
724 | ||
b5827b24 BP |
725 | /* Makes a deep copy of 'old' into 'port'. */ |
726 | void | |
727 | ofproto_port_clone(struct ofproto_port *port, const struct ofproto_port *old) | |
728 | { | |
729 | port->name = xstrdup(old->name); | |
730 | port->type = xstrdup(old->type); | |
731 | port->ofp_port = old->ofp_port; | |
732 | } | |
733 | ||
734 | /* Frees memory allocated to members of 'ofproto_port'. | |
735 | * | |
736 | * Do not call this function on an ofproto_port obtained from | |
737 | * ofproto_port_dump_next(): that function retains ownership of the data in the | |
738 | * ofproto_port. */ | |
739 | void | |
740 | ofproto_port_destroy(struct ofproto_port *ofproto_port) | |
741 | { | |
742 | free(ofproto_port->name); | |
743 | free(ofproto_port->type); | |
744 | } | |
745 | ||
b5827b24 BP |
746 | /* Initializes 'dump' to begin dumping the ports in an ofproto. |
747 | * | |
748 | * This function provides no status indication. An error status for the entire | |
749 | * dump operation is provided when it is completed by calling | |
750 | * ofproto_port_dump_done(). | |
751 | */ | |
752 | void | |
753 | ofproto_port_dump_start(struct ofproto_port_dump *dump, | |
754 | const struct ofproto *ofproto) | |
755 | { | |
abe529af BP |
756 | dump->ofproto = ofproto; |
757 | dump->error = ofproto->ofproto_class->port_dump_start(ofproto, | |
758 | &dump->state); | |
b5827b24 BP |
759 | } |
760 | ||
761 | /* Attempts to retrieve another port from 'dump', which must have been created | |
762 | * with ofproto_port_dump_start(). On success, stores a new ofproto_port into | |
763 | * 'port' and returns true. On failure, returns false. | |
764 | * | |
765 | * Failure might indicate an actual error or merely that the last port has been | |
766 | * dumped. An error status for the entire dump operation is provided when it | |
767 | * is completed by calling ofproto_port_dump_done(). | |
768 | * | |
769 | * The ofproto owns the data stored in 'port'. It will remain valid until at | |
770 | * least the next time 'dump' is passed to ofproto_port_dump_next() or | |
771 | * ofproto_port_dump_done(). */ | |
772 | bool | |
773 | ofproto_port_dump_next(struct ofproto_port_dump *dump, | |
774 | struct ofproto_port *port) | |
775 | { | |
abe529af BP |
776 | const struct ofproto *ofproto = dump->ofproto; |
777 | ||
778 | if (dump->error) { | |
779 | return false; | |
780 | } | |
b5827b24 | 781 | |
abe529af BP |
782 | dump->error = ofproto->ofproto_class->port_dump_next(ofproto, dump->state, |
783 | port); | |
784 | if (dump->error) { | |
785 | ofproto->ofproto_class->port_dump_done(ofproto, dump->state); | |
786 | return false; | |
b5827b24 | 787 | } |
abe529af | 788 | return true; |
b5827b24 BP |
789 | } |
790 | ||
791 | /* Completes port table dump operation 'dump', which must have been created | |
792 | * with ofproto_port_dump_start(). Returns 0 if the dump operation was | |
793 | * error-free, otherwise a positive errno value describing the problem. */ | |
794 | int | |
795 | ofproto_port_dump_done(struct ofproto_port_dump *dump) | |
796 | { | |
abe529af BP |
797 | const struct ofproto *ofproto = dump->ofproto; |
798 | if (!dump->error) { | |
799 | dump->error = ofproto->ofproto_class->port_dump_done(ofproto, | |
800 | dump->state); | |
801 | } | |
802 | return dump->error == EOF ? 0 : dump->error; | |
b5827b24 BP |
803 | } |
804 | ||
805 | /* Attempts to add 'netdev' as a port on 'ofproto'. If successful, returns 0 | |
892815f5 | 806 | * and sets '*ofp_portp' to the new port's OpenFlow port number (if 'ofp_portp' |
b5827b24 BP |
807 | * is non-null). On failure, returns a positive errno value and sets |
808 | * '*ofp_portp' to OFPP_NONE (if 'ofp_portp' is non-null). */ | |
809 | int | |
810 | ofproto_port_add(struct ofproto *ofproto, struct netdev *netdev, | |
811 | uint16_t *ofp_portp) | |
812 | { | |
abe529af | 813 | uint16_t ofp_port; |
b5827b24 BP |
814 | int error; |
815 | ||
abe529af | 816 | error = ofproto->ofproto_class->port_add(ofproto, netdev, &ofp_port); |
1fa24dea BP |
817 | if (!error) { |
818 | update_port(ofproto, netdev_get_name(netdev)); | |
819 | } | |
b5827b24 | 820 | if (ofp_portp) { |
abe529af | 821 | *ofp_portp = error ? OFPP_NONE : ofp_port; |
b5827b24 BP |
822 | } |
823 | return error; | |
824 | } | |
825 | ||
826 | /* Looks up a port named 'devname' in 'ofproto'. On success, returns 0 and | |
827 | * initializes '*port' appropriately; on failure, returns a positive errno | |
828 | * value. | |
829 | * | |
abe529af | 830 | * The caller owns the data in 'ofproto_port' and must free it with |
b5827b24 BP |
831 | * ofproto_port_destroy() when it is no longer needed. */ |
832 | int | |
833 | ofproto_port_query_by_name(const struct ofproto *ofproto, const char *devname, | |
834 | struct ofproto_port *port) | |
835 | { | |
b5827b24 BP |
836 | int error; |
837 | ||
abe529af BP |
838 | error = ofproto->ofproto_class->port_query_by_name(ofproto, devname, port); |
839 | if (error) { | |
840 | memset(port, 0, sizeof *port); | |
b5827b24 BP |
841 | } |
842 | return error; | |
843 | } | |
844 | ||
845 | /* Deletes port number 'ofp_port' from the datapath for 'ofproto'. | |
3a6ccc8c BP |
846 | * Returns 0 if successful, otherwise a positive errno. */ |
847 | int | |
b5827b24 | 848 | ofproto_port_del(struct ofproto *ofproto, uint16_t ofp_port) |
3a6ccc8c | 849 | { |
abe529af | 850 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1264ec95 | 851 | const char *name = ofport ? netdev_get_name(ofport->netdev) : "<unknown>"; |
3a6ccc8c BP |
852 | int error; |
853 | ||
abe529af | 854 | error = ofproto->ofproto_class->port_del(ofproto, ofp_port); |
892815f5 | 855 | if (!error && ofport) { |
1264ec95 BP |
856 | /* 'name' is the netdev's name and update_port() is going to close the |
857 | * netdev. Just in case update_port() refers to 'name' after it | |
3a6ccc8c BP |
858 | * destroys 'ofport', make a copy of it around the update_port() |
859 | * call. */ | |
860 | char *devname = xstrdup(name); | |
861 | update_port(ofproto, devname); | |
862 | free(devname); | |
863 | } | |
864 | return error; | |
865 | } | |
866 | ||
fa8b054f BP |
867 | /* Adds a flow to the OpenFlow flow table in 'p' that matches 'cls_rule' and |
868 | * performs the 'n_actions' actions in 'actions'. The new flow will not | |
869 | * timeout. | |
870 | * | |
871 | * If cls_rule->priority is in the range of priorities supported by OpenFlow | |
872 | * (0...65535, inclusive) then the flow will be visible to OpenFlow | |
873 | * controllers; otherwise, it will be hidden. | |
874 | * | |
875 | * The caller retains ownership of 'cls_rule' and 'actions'. */ | |
064af421 | 876 | void |
cf3fad8a | 877 | ofproto_add_flow(struct ofproto *p, const struct cls_rule *cls_rule, |
fa8b054f | 878 | const union ofp_action *actions, size_t n_actions) |
064af421 BP |
879 | { |
880 | struct rule *rule; | |
abe529af | 881 | rule_create(p, cls_rule, actions, n_actions, 0, 0, 0, false, &rule); |
064af421 BP |
882 | } |
883 | ||
884 | void | |
cf3fad8a | 885 | ofproto_delete_flow(struct ofproto *ofproto, const struct cls_rule *target) |
064af421 BP |
886 | { |
887 | struct rule *rule; | |
888 | ||
889 | rule = rule_from_cls_rule(classifier_find_rule_exactly(&ofproto->cls, | |
cf3fad8a | 890 | target)); |
064af421 | 891 | if (rule) { |
abe529af | 892 | ofproto_rule_remove(rule); |
064af421 BP |
893 | } |
894 | } | |
895 | ||
142e1f5c BP |
896 | static void |
897 | ofproto_flush_flows__(struct ofproto *ofproto) | |
064af421 | 898 | { |
5ecc9d81 BP |
899 | struct rule *rule, *next_rule; |
900 | struct cls_cursor cursor; | |
bcf84111 | 901 | |
064af421 | 902 | COVERAGE_INC(ofproto_flush); |
bcf84111 | 903 | |
abe529af BP |
904 | if (ofproto->ofproto_class->flush) { |
905 | ofproto->ofproto_class->flush(ofproto); | |
bcf84111 | 906 | } |
5ecc9d81 BP |
907 | |
908 | cls_cursor_init(&cursor, &ofproto->cls, NULL); | |
909 | CLS_CURSOR_FOR_EACH_SAFE (rule, next_rule, cr, &cursor) { | |
abe529af | 910 | ofproto_rule_remove(rule); |
5ecc9d81 | 911 | } |
142e1f5c BP |
912 | } |
913 | ||
914 | void | |
915 | ofproto_flush_flows(struct ofproto *ofproto) | |
916 | { | |
917 | ofproto_flush_flows__(ofproto); | |
19a87e36 | 918 | connmgr_flushed(ofproto->connmgr); |
064af421 BP |
919 | } |
920 | \f | |
921 | static void | |
922 | reinit_ports(struct ofproto *p) | |
923 | { | |
abe529af | 924 | struct ofproto_port_dump dump; |
b3c01ed3 | 925 | struct sset devnames; |
064af421 | 926 | struct ofport *ofport; |
abe529af | 927 | struct ofproto_port ofproto_port; |
b3c01ed3 | 928 | const char *devname; |
064af421 | 929 | |
898bf89d JP |
930 | COVERAGE_INC(ofproto_reinit_ports); |
931 | ||
b3c01ed3 | 932 | sset_init(&devnames); |
4e8e4213 | 933 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { |
1264ec95 | 934 | sset_add(&devnames, netdev_get_name(ofport->netdev)); |
064af421 | 935 | } |
abe529af BP |
936 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { |
937 | sset_add(&devnames, ofproto_port.name); | |
064af421 | 938 | } |
064af421 | 939 | |
b3c01ed3 BP |
940 | SSET_FOR_EACH (devname, &devnames) { |
941 | update_port(p, devname); | |
064af421 | 942 | } |
b3c01ed3 | 943 | sset_destroy(&devnames); |
064af421 BP |
944 | } |
945 | ||
abe529af BP |
946 | /* Opens and returns a netdev for 'ofproto_port', or a null pointer if the |
947 | * netdev cannot be opened. On success, also fills in 'opp'. */ | |
b33951b8 | 948 | static struct netdev * |
abe529af | 949 | ofport_open(const struct ofproto_port *ofproto_port, struct ofp_phy_port *opp) |
064af421 | 950 | { |
9cfcdadf | 951 | uint32_t curr, advertised, supported, peer; |
149f577a | 952 | struct netdev_options netdev_options; |
064af421 | 953 | enum netdev_flags flags; |
064af421 | 954 | struct netdev *netdev; |
064af421 BP |
955 | int error; |
956 | ||
149f577a | 957 | memset(&netdev_options, 0, sizeof netdev_options); |
abe529af BP |
958 | netdev_options.name = ofproto_port->name; |
959 | netdev_options.type = ofproto_port->type; | |
149f577a | 960 | netdev_options.ethertype = NETDEV_ETH_TYPE_NONE; |
149f577a JG |
961 | |
962 | error = netdev_open(&netdev_options, &netdev); | |
064af421 BP |
963 | if (error) { |
964 | VLOG_WARN_RL(&rl, "ignoring port %s (%"PRIu16") because netdev %s " | |
965 | "cannot be opened (%s)", | |
abe529af BP |
966 | ofproto_port->name, ofproto_port->ofp_port, |
967 | ofproto_port->name, strerror(error)); | |
064af421 BP |
968 | return NULL; |
969 | } | |
970 | ||
064af421 | 971 | netdev_get_flags(netdev, &flags); |
9cfcdadf | 972 | netdev_get_features(netdev, &curr, &advertised, &supported, &peer); |
064af421 | 973 | |
abe529af | 974 | opp->port_no = htons(ofproto_port->ofp_port); |
b33951b8 | 975 | netdev_get_etheraddr(netdev, opp->hw_addr); |
abe529af | 976 | ovs_strzcpy(opp->name, ofproto_port->name, sizeof opp->name); |
9cfcdadf BP |
977 | opp->config = flags & NETDEV_UP ? 0 : htonl(OFPPC_PORT_DOWN); |
978 | opp->state = netdev_get_carrier(netdev) ? 0 : htonl(OFPPS_LINK_DOWN); | |
979 | opp->curr = htonl(curr); | |
980 | opp->advertised = htonl(advertised); | |
981 | opp->supported = htonl(supported); | |
982 | opp->peer = htonl(peer); | |
983 | ||
b33951b8 | 984 | return netdev; |
064af421 BP |
985 | } |
986 | ||
abe529af BP |
987 | /* Returns true if most fields of 'a' and 'b' are equal. Differences in name, |
988 | * port number, and 'config' bits other than OFPPC_PORT_DOWN are | |
989 | * disregarded. */ | |
064af421 | 990 | static bool |
abe529af | 991 | ofport_equal(const struct ofp_phy_port *a, const struct ofp_phy_port *b) |
064af421 | 992 | { |
064af421 | 993 | BUILD_ASSERT_DECL(sizeof *a == 48); /* Detect ofp_phy_port changes. */ |
b33951b8 | 994 | return (!memcmp(a->hw_addr, b->hw_addr, sizeof a->hw_addr) |
064af421 | 995 | && a->state == b->state |
9cfcdadf | 996 | && !((a->config ^ b->config) & htonl(OFPPC_PORT_DOWN)) |
064af421 BP |
997 | && a->curr == b->curr |
998 | && a->advertised == b->advertised | |
999 | && a->supported == b->supported | |
1000 | && a->peer == b->peer); | |
1001 | } | |
1002 | ||
b33951b8 BP |
1003 | /* Adds an ofport to 'p' initialized based on the given 'netdev' and 'opp'. |
1004 | * The caller must ensure that 'p' does not have a conflicting ofport (that is, | |
1005 | * one with the same name or port number). */ | |
064af421 | 1006 | static void |
b33951b8 BP |
1007 | ofport_install(struct ofproto *p, |
1008 | struct netdev *netdev, const struct ofp_phy_port *opp) | |
064af421 | 1009 | { |
b33951b8 BP |
1010 | const char *netdev_name = netdev_get_name(netdev); |
1011 | struct ofport *ofport; | |
abe529af | 1012 | int error; |
72b06300 | 1013 | |
b33951b8 | 1014 | /* Create ofport. */ |
abe529af BP |
1015 | ofport = p->ofproto_class->port_alloc(); |
1016 | if (!ofport) { | |
1017 | error = ENOMEM; | |
1018 | goto error; | |
1019 | } | |
0f7d71a5 | 1020 | ofport->ofproto = p; |
b33951b8 BP |
1021 | ofport->netdev = netdev; |
1022 | ofport->opp = *opp; | |
abe529af | 1023 | ofport->ofp_port = ntohs(opp->port_no); |
b33951b8 BP |
1024 | |
1025 | /* Add port to 'p'. */ | |
e9e28be3 | 1026 | netdev_monitor_add(p->netdev_monitor, ofport->netdev); |
abe529af | 1027 | hmap_insert(&p->ports, &ofport->hmap_node, hash_int(ofport->ofp_port, 0)); |
72b06300 | 1028 | shash_add(&p->port_by_name, netdev_name, ofport); |
abe529af BP |
1029 | |
1030 | /* Let the ofproto_class initialize its private data. */ | |
1031 | error = p->ofproto_class->port_construct(ofport); | |
1032 | if (error) { | |
1033 | goto error; | |
1034 | } | |
1035 | connmgr_send_port_status(p->connmgr, opp, OFPPR_ADD); | |
1036 | return; | |
1037 | ||
1038 | error: | |
1039 | VLOG_WARN_RL(&rl, "%s: could not add port %s (%s)", | |
1040 | p->name, netdev_name, strerror(error)); | |
1041 | if (ofport) { | |
1042 | ofport_destroy__(ofport); | |
1043 | } else { | |
1044 | netdev_close(netdev); | |
72b06300 | 1045 | } |
064af421 BP |
1046 | } |
1047 | ||
b33951b8 | 1048 | /* Removes 'ofport' from 'p' and destroys it. */ |
064af421 | 1049 | static void |
0f7d71a5 | 1050 | ofport_remove(struct ofport *ofport) |
064af421 | 1051 | { |
fa066f01 BP |
1052 | connmgr_send_port_status(ofport->ofproto->connmgr, &ofport->opp, |
1053 | OFPPR_DELETE); | |
abe529af | 1054 | ofport_destroy(ofport); |
b33951b8 BP |
1055 | } |
1056 | ||
1057 | /* If 'ofproto' contains an ofport named 'name', removes it from 'ofproto' and | |
1058 | * destroys it. */ | |
1059 | static void | |
1060 | ofport_remove_with_name(struct ofproto *ofproto, const char *name) | |
1061 | { | |
1062 | struct ofport *port = shash_find_data(&ofproto->port_by_name, name); | |
1063 | if (port) { | |
0f7d71a5 | 1064 | ofport_remove(port); |
b33951b8 BP |
1065 | } |
1066 | } | |
1067 | ||
1068 | /* Updates 'port' within 'ofproto' with the new 'netdev' and 'opp'. | |
1069 | * | |
1070 | * Does not handle a name or port number change. The caller must implement | |
1071 | * such a change as a delete followed by an add. */ | |
1072 | static void | |
abe529af | 1073 | ofport_modified(struct ofport *port, struct ofp_phy_port *opp) |
b33951b8 BP |
1074 | { |
1075 | memcpy(port->opp.hw_addr, opp->hw_addr, ETH_ADDR_LEN); | |
9cfcdadf BP |
1076 | port->opp.config = ((port->opp.config & ~htonl(OFPPC_PORT_DOWN)) |
1077 | | (opp->config & htonl(OFPPC_PORT_DOWN))); | |
b33951b8 BP |
1078 | port->opp.state = opp->state; |
1079 | port->opp.curr = opp->curr; | |
1080 | port->opp.advertised = opp->advertised; | |
1081 | port->opp.supported = opp->supported; | |
1082 | port->opp.peer = opp->peer; | |
1083 | ||
abe529af | 1084 | connmgr_send_port_status(port->ofproto->connmgr, &port->opp, OFPPR_MODIFY); |
064af421 BP |
1085 | } |
1086 | ||
abe529af BP |
1087 | void |
1088 | ofproto_port_unregister(struct ofproto *ofproto, uint16_t ofp_port) | |
e7934396 | 1089 | { |
abe529af BP |
1090 | struct ofport *port = ofproto_get_port(ofproto, ofp_port); |
1091 | if (port) { | |
1092 | if (port->ofproto->ofproto_class->set_cfm) { | |
1093 | port->ofproto->ofproto_class->set_cfm(port, NULL, NULL, 0); | |
1094 | } | |
1095 | if (port->ofproto->ofproto_class->bundle_remove) { | |
1096 | port->ofproto->ofproto_class->bundle_remove(port); | |
e7934396 BP |
1097 | } |
1098 | } | |
1099 | } | |
1100 | ||
1101 | static void | |
abe529af | 1102 | ofport_destroy__(struct ofport *port) |
064af421 | 1103 | { |
abe529af BP |
1104 | struct ofproto *ofproto = port->ofproto; |
1105 | const char *name = netdev_get_name(port->netdev); | |
fa066f01 | 1106 | |
abe529af BP |
1107 | netdev_monitor_remove(ofproto->netdev_monitor, port->netdev); |
1108 | hmap_remove(&ofproto->ports, &port->hmap_node); | |
1109 | shash_delete(&ofproto->port_by_name, | |
1110 | shash_find(&ofproto->port_by_name, name)); | |
fa066f01 | 1111 | |
abe529af BP |
1112 | netdev_close(port->netdev); |
1113 | ofproto->ofproto_class->port_dealloc(port); | |
fa066f01 BP |
1114 | } |
1115 | ||
1116 | static void | |
abe529af | 1117 | ofport_destroy(struct ofport *port) |
fa066f01 BP |
1118 | { |
1119 | if (port) { | |
abe529af BP |
1120 | port->ofproto->ofproto_class->port_destruct(port); |
1121 | ofport_destroy__(port); | |
1122 | } | |
064af421 BP |
1123 | } |
1124 | ||
abe529af BP |
1125 | struct ofport * |
1126 | ofproto_get_port(const struct ofproto *ofproto, uint16_t ofp_port) | |
ca0f572c BP |
1127 | { |
1128 | struct ofport *port; | |
1129 | ||
4e8e4213 | 1130 | HMAP_FOR_EACH_IN_BUCKET (port, hmap_node, |
abe529af BP |
1131 | hash_int(ofp_port, 0), &ofproto->ports) { |
1132 | if (port->ofp_port == ofp_port) { | |
ca0f572c BP |
1133 | return port; |
1134 | } | |
1135 | } | |
1136 | return NULL; | |
1137 | } | |
1138 | ||
064af421 | 1139 | static void |
b33951b8 | 1140 | update_port(struct ofproto *ofproto, const char *name) |
064af421 | 1141 | { |
abe529af | 1142 | struct ofproto_port ofproto_port; |
b33951b8 BP |
1143 | struct ofp_phy_port opp; |
1144 | struct netdev *netdev; | |
1145 | struct ofport *port; | |
064af421 BP |
1146 | |
1147 | COVERAGE_INC(ofproto_update_port); | |
c874dc6d | 1148 | |
b33951b8 | 1149 | /* Fetch 'name''s location and properties from the datapath. */ |
abe529af BP |
1150 | netdev = (!ofproto_port_query_by_name(ofproto, name, &ofproto_port) |
1151 | ? ofport_open(&ofproto_port, &opp) | |
b33951b8 BP |
1152 | : NULL); |
1153 | if (netdev) { | |
abe529af | 1154 | port = ofproto_get_port(ofproto, ofproto_port.ofp_port); |
b33951b8 BP |
1155 | if (port && !strcmp(netdev_get_name(port->netdev), name)) { |
1156 | /* 'name' hasn't changed location. Any properties changed? */ | |
1157 | if (!ofport_equal(&port->opp, &opp)) { | |
abe529af BP |
1158 | ofport_modified(port, &opp); |
1159 | } | |
1160 | ||
1161 | /* Install the newly opened netdev in case it has changed. */ | |
1162 | netdev_monitor_remove(ofproto->netdev_monitor, port->netdev); | |
1163 | netdev_monitor_add(ofproto->netdev_monitor, netdev); | |
1164 | ||
1165 | netdev_close(port->netdev); | |
1166 | port->netdev = netdev; | |
1167 | ||
1168 | if (port->ofproto->ofproto_class->port_modified) { | |
1169 | port->ofproto->ofproto_class->port_modified(port); | |
b33951b8 BP |
1170 | } |
1171 | } else { | |
1172 | /* If 'port' is nonnull then its name differs from 'name' and thus | |
1173 | * we should delete it. If we think there's a port named 'name' | |
1174 | * then its port number must be wrong now so delete it too. */ | |
1175 | if (port) { | |
0f7d71a5 | 1176 | ofport_remove(port); |
b33951b8 BP |
1177 | } |
1178 | ofport_remove_with_name(ofproto, name); | |
1179 | ofport_install(ofproto, netdev, &opp); | |
c874dc6d | 1180 | } |
b33951b8 BP |
1181 | } else { |
1182 | /* Any port named 'name' is gone now. */ | |
1183 | ofport_remove_with_name(ofproto, name); | |
c874dc6d | 1184 | } |
abe529af | 1185 | ofproto_port_destroy(&ofproto_port); |
064af421 BP |
1186 | } |
1187 | ||
1188 | static int | |
1189 | init_ports(struct ofproto *p) | |
1190 | { | |
abe529af BP |
1191 | struct ofproto_port_dump dump; |
1192 | struct ofproto_port ofproto_port; | |
1193 | ||
1194 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { | |
1195 | uint16_t ofp_port = ofproto_port.ofp_port; | |
1196 | if (ofproto_get_port(p, ofp_port)) { | |
1197 | VLOG_WARN_RL(&rl, "ignoring duplicate port %"PRIu16" in datapath", | |
1198 | ofp_port); | |
1199 | } else if (shash_find(&p->port_by_name, ofproto_port.name)) { | |
1200 | VLOG_WARN_RL(&rl, "ignoring duplicate device %s in datapath", | |
1201 | ofproto_port.name); | |
1202 | } else { | |
b33951b8 BP |
1203 | struct ofp_phy_port opp; |
1204 | struct netdev *netdev; | |
1205 | ||
abe529af | 1206 | netdev = ofport_open(&ofproto_port, &opp); |
b33951b8 BP |
1207 | if (netdev) { |
1208 | ofport_install(p, netdev, &opp); | |
064af421 BP |
1209 | } |
1210 | } | |
1211 | } | |
b0ec0f27 | 1212 | |
064af421 BP |
1213 | return 0; |
1214 | } | |
1215 | \f | |
abe529af BP |
1216 | /* Creates a new rule initialized as specified, inserts it into 'ofproto''s |
1217 | * flow table, and stores the new rule into '*rulep'. Returns 0 on success, | |
1218 | * otherwise a positive errno value or OpenFlow error code. */ | |
1219 | static int | |
1220 | rule_create(struct ofproto *ofproto, const struct cls_rule *cls_rule, | |
064af421 | 1221 | const union ofp_action *actions, size_t n_actions, |
ca069229 | 1222 | uint16_t idle_timeout, uint16_t hard_timeout, |
abe529af BP |
1223 | ovs_be64 flow_cookie, bool send_flow_removed, |
1224 | struct rule **rulep) | |
064af421 | 1225 | { |
abe529af BP |
1226 | struct rule *rule; |
1227 | int error; | |
1228 | ||
1229 | rule = ofproto->ofproto_class->rule_alloc(); | |
1230 | if (!rule) { | |
1231 | error = ENOMEM; | |
1232 | goto error; | |
1233 | } | |
1234 | ||
1235 | rule->ofproto = ofproto; | |
bcf84111 | 1236 | rule->cr = *cls_rule; |
abe529af BP |
1237 | rule->flow_cookie = flow_cookie; |
1238 | rule->created = time_msec(); | |
064af421 BP |
1239 | rule->idle_timeout = idle_timeout; |
1240 | rule->hard_timeout = hard_timeout; | |
ca069229 | 1241 | rule->send_flow_removed = send_flow_removed; |
3dffcf07 | 1242 | if (n_actions > 0) { |
3dffcf07 | 1243 | rule->actions = xmemdup(actions, n_actions * sizeof *actions); |
abe529af BP |
1244 | } else { |
1245 | rule->actions = NULL; | |
3dffcf07 | 1246 | } |
abe529af | 1247 | rule->n_actions = n_actions; |
0193b2af | 1248 | |
abe529af BP |
1249 | error = ofproto->ofproto_class->rule_construct(rule); |
1250 | if (error) { | |
1251 | ofproto_rule_destroy__(rule); | |
1252 | goto error; | |
1253 | } | |
064af421 | 1254 | |
abe529af BP |
1255 | *rulep = rule; |
1256 | return 0; | |
1257 | ||
1258 | error: | |
1259 | VLOG_WARN_RL(&rl, "%s: failed to create rule (%s)", | |
1260 | ofproto->name, strerror(error)); | |
1261 | *rulep = NULL; | |
1262 | return error; | |
064af421 BP |
1263 | } |
1264 | ||
1265 | static void | |
abe529af | 1266 | ofproto_rule_destroy__(struct rule *rule) |
064af421 BP |
1267 | { |
1268 | free(rule->actions); | |
abe529af | 1269 | rule->ofproto->ofproto_class->rule_dealloc(rule); |
064af421 BP |
1270 | } |
1271 | ||
f797957a | 1272 | /* Destroys 'rule' and removes it from the datapath. |
064af421 | 1273 | * |
bcf84111 | 1274 | * The caller must have already removed 'rule' from the classifier. */ |
abe529af BP |
1275 | void |
1276 | ofproto_rule_destroy(struct rule *rule) | |
064af421 | 1277 | { |
abe529af BP |
1278 | rule->ofproto->ofproto_class->rule_destruct(rule); |
1279 | ofproto_rule_destroy__(rule); | |
064af421 BP |
1280 | } |
1281 | ||
bcf84111 BP |
1282 | /* Returns true if 'rule' has an OpenFlow OFPAT_OUTPUT or OFPAT_ENQUEUE action |
1283 | * that outputs to 'out_port' (output to OFPP_FLOOD and OFPP_ALL doesn't | |
1284 | * count). */ | |
064af421 | 1285 | static bool |
8054fc48 | 1286 | rule_has_out_port(const struct rule *rule, ovs_be16 out_port) |
064af421 BP |
1287 | { |
1288 | const union ofp_action *oa; | |
1289 | struct actions_iterator i; | |
1290 | ||
1291 | if (out_port == htons(OFPP_NONE)) { | |
1292 | return true; | |
1293 | } | |
1294 | for (oa = actions_first(&i, rule->actions, rule->n_actions); oa; | |
1295 | oa = actions_next(&i)) { | |
c1c9c9c4 | 1296 | if (action_outputs_to_port(oa, out_port)) { |
064af421 BP |
1297 | return true; |
1298 | } | |
1299 | } | |
1300 | return false; | |
1301 | } | |
1302 | ||
abe529af BP |
1303 | struct rule * |
1304 | ofproto_rule_lookup(struct ofproto *ofproto, const struct flow *flow) | |
064af421 | 1305 | { |
abe529af | 1306 | return rule_from_cls_rule(classifier_lookup(&ofproto->cls, flow)); |
bcf84111 BP |
1307 | } |
1308 | ||
1309 | /* Executes the actions indicated by 'rule' on 'packet' and credits 'rule''s | |
f797957a BP |
1310 | * statistics appropriately. 'packet' must have at least sizeof(struct |
1311 | * ofp_packet_in) bytes of headroom. | |
bcf84111 BP |
1312 | * |
1313 | * 'packet' doesn't necessarily have to match 'rule'. 'rule' will be credited | |
1314 | * with statistics for 'packet' either way. | |
1315 | * | |
1316 | * Takes ownership of 'packet'. */ | |
5bf0e941 | 1317 | static int |
abe529af | 1318 | rule_execute(struct rule *rule, uint16_t in_port, struct ofpbuf *packet) |
bcf84111 | 1319 | { |
bcf84111 | 1320 | struct flow flow; |
cdee00fd | 1321 | |
abe529af | 1322 | assert(ofpbuf_headroom(packet) >= sizeof(struct ofp_packet_in)); |
fa066f01 | 1323 | |
abe529af | 1324 | flow_extract(packet, 0, in_port, &flow); |
5bf0e941 | 1325 | return rule->ofproto->ofproto_class->rule_execute(rule, &flow, packet); |
abe529af | 1326 | } |
fa066f01 | 1327 | |
f797957a BP |
1328 | /* Removes 'rule' from 'ofproto' and frees up the associated memory. Removes |
1329 | * 'rule' from the classifier. */ | |
abe529af BP |
1330 | void |
1331 | ofproto_rule_remove(struct rule *rule) | |
1332 | { | |
1333 | rule->ofproto->ofproto_class->rule_remove(rule); | |
1334 | ofproto_rule_destroy(rule); | |
1335 | } | |
fa066f01 | 1336 | |
abe529af BP |
1337 | /* Returns true if 'rule' should be hidden from the controller. |
1338 | * | |
1339 | * Rules with priority higher than UINT16_MAX are set up by ofproto itself | |
1340 | * (e.g. by in-band control) and are intentionally hidden from the | |
1341 | * controller. */ | |
1342 | static bool | |
1343 | rule_is_hidden(const struct rule *rule) | |
1344 | { | |
1345 | return rule->cr.priority > UINT16_MAX; | |
fa066f01 BP |
1346 | } |
1347 | \f | |
064af421 BP |
1348 | static void |
1349 | send_error_oh(const struct ofconn *ofconn, const struct ofp_header *oh, | |
1350 | int error) | |
1351 | { | |
dc4762ed | 1352 | struct ofpbuf *buf = ofputil_encode_error_msg(error, oh); |
26c112c2 BP |
1353 | if (buf) { |
1354 | COVERAGE_INC(ofproto_error); | |
b0421aa2 | 1355 | ofconn_send_reply(ofconn, buf); |
26c112c2 | 1356 | } |
064af421 BP |
1357 | } |
1358 | ||
064af421 | 1359 | static int |
d1e2cf21 | 1360 | handle_echo_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 1361 | { |
b0421aa2 | 1362 | ofconn_send_reply(ofconn, make_echo_reply(oh)); |
064af421 BP |
1363 | return 0; |
1364 | } | |
1365 | ||
1366 | static int | |
d1e2cf21 | 1367 | handle_features_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 1368 | { |
64ff1d96 | 1369 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
064af421 BP |
1370 | struct ofp_switch_features *osf; |
1371 | struct ofpbuf *buf; | |
064af421 BP |
1372 | struct ofport *port; |
1373 | ||
1374 | osf = make_openflow_xid(sizeof *osf, OFPT_FEATURES_REPLY, oh->xid, &buf); | |
64ff1d96 | 1375 | osf->datapath_id = htonll(ofproto->datapath_id); |
064af421 BP |
1376 | osf->n_buffers = htonl(pktbuf_capacity()); |
1377 | osf->n_tables = 2; | |
1378 | osf->capabilities = htonl(OFPC_FLOW_STATS | OFPC_TABLE_STATS | | |
0254ae23 | 1379 | OFPC_PORT_STATS | OFPC_ARP_MATCH_IP); |
064af421 BP |
1380 | osf->actions = htonl((1u << OFPAT_OUTPUT) | |
1381 | (1u << OFPAT_SET_VLAN_VID) | | |
1382 | (1u << OFPAT_SET_VLAN_PCP) | | |
1383 | (1u << OFPAT_STRIP_VLAN) | | |
1384 | (1u << OFPAT_SET_DL_SRC) | | |
1385 | (1u << OFPAT_SET_DL_DST) | | |
1386 | (1u << OFPAT_SET_NW_SRC) | | |
1387 | (1u << OFPAT_SET_NW_DST) | | |
959a2ecd | 1388 | (1u << OFPAT_SET_NW_TOS) | |
064af421 | 1389 | (1u << OFPAT_SET_TP_SRC) | |
c1c9c9c4 BP |
1390 | (1u << OFPAT_SET_TP_DST) | |
1391 | (1u << OFPAT_ENQUEUE)); | |
064af421 | 1392 | |
64ff1d96 | 1393 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
9cfcdadf | 1394 | ofpbuf_put(buf, &port->opp, sizeof port->opp); |
064af421 BP |
1395 | } |
1396 | ||
b0421aa2 | 1397 | ofconn_send_reply(ofconn, buf); |
064af421 BP |
1398 | return 0; |
1399 | } | |
1400 | ||
1401 | static int | |
d1e2cf21 | 1402 | handle_get_config_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 1403 | { |
64ff1d96 | 1404 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
064af421 BP |
1405 | struct ofpbuf *buf; |
1406 | struct ofp_switch_config *osc; | |
1407 | uint16_t flags; | |
1408 | bool drop_frags; | |
1409 | ||
1410 | /* Figure out flags. */ | |
abe529af | 1411 | drop_frags = ofproto->ofproto_class->get_drop_frags(ofproto); |
064af421 | 1412 | flags = drop_frags ? OFPC_FRAG_DROP : OFPC_FRAG_NORMAL; |
064af421 BP |
1413 | |
1414 | /* Send reply. */ | |
1415 | osc = make_openflow_xid(sizeof *osc, OFPT_GET_CONFIG_REPLY, oh->xid, &buf); | |
1416 | osc->flags = htons(flags); | |
810605a2 | 1417 | osc->miss_send_len = htons(ofconn_get_miss_send_len(ofconn)); |
b0421aa2 | 1418 | ofconn_send_reply(ofconn, buf); |
064af421 BP |
1419 | |
1420 | return 0; | |
1421 | } | |
1422 | ||
1423 | static int | |
d1e2cf21 | 1424 | handle_set_config(struct ofconn *ofconn, const struct ofp_switch_config *osc) |
064af421 | 1425 | { |
64ff1d96 | 1426 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
d1e2cf21 | 1427 | uint16_t flags = ntohs(osc->flags); |
064af421 | 1428 | |
1ce0a5fa BP |
1429 | if (ofconn_get_type(ofconn) == OFCONN_PRIMARY |
1430 | && ofconn_get_role(ofconn) != NX_ROLE_SLAVE) { | |
064af421 BP |
1431 | switch (flags & OFPC_FRAG_MASK) { |
1432 | case OFPC_FRAG_NORMAL: | |
abe529af | 1433 | ofproto->ofproto_class->set_drop_frags(ofproto, false); |
064af421 BP |
1434 | break; |
1435 | case OFPC_FRAG_DROP: | |
abe529af | 1436 | ofproto->ofproto_class->set_drop_frags(ofproto, true); |
064af421 BP |
1437 | break; |
1438 | default: | |
1439 | VLOG_WARN_RL(&rl, "requested bad fragment mode (flags=%"PRIx16")", | |
1440 | osc->flags); | |
1441 | break; | |
1442 | } | |
1443 | } | |
1444 | ||
810605a2 | 1445 | ofconn_set_miss_send_len(ofconn, ntohs(osc->miss_send_len)); |
064af421 BP |
1446 | |
1447 | return 0; | |
1448 | } | |
1449 | ||
9deba63b BP |
1450 | /* Checks whether 'ofconn' is a slave controller. If so, returns an OpenFlow |
1451 | * error message code (composed with ofp_mkerr()) for the caller to propagate | |
1452 | * upward. Otherwise, returns 0. | |
1453 | * | |
2228b50d | 1454 | * The log message mentions 'msg_type'. */ |
9deba63b | 1455 | static int |
2228b50d | 1456 | reject_slave_controller(struct ofconn *ofconn, const const char *msg_type) |
9deba63b | 1457 | { |
1ce0a5fa BP |
1458 | if (ofconn_get_type(ofconn) == OFCONN_PRIMARY |
1459 | && ofconn_get_role(ofconn) == NX_ROLE_SLAVE) { | |
9deba63b | 1460 | static struct vlog_rate_limit perm_rl = VLOG_RATE_LIMIT_INIT(1, 5); |
9deba63b | 1461 | VLOG_WARN_RL(&perm_rl, "rejecting %s message from slave controller", |
2228b50d | 1462 | msg_type); |
9deba63b BP |
1463 | |
1464 | return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_EPERM); | |
1465 | } else { | |
1466 | return 0; | |
1467 | } | |
1468 | } | |
1469 | ||
064af421 | 1470 | static int |
d1e2cf21 | 1471 | handle_packet_out(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 1472 | { |
64ff1d96 | 1473 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 BP |
1474 | struct ofp_packet_out *opo; |
1475 | struct ofpbuf payload, *buffer; | |
ac51afaf | 1476 | union ofp_action *ofp_actions; |
ac51afaf | 1477 | struct ofpbuf request; |
ae412e7d | 1478 | struct flow flow; |
ac51afaf | 1479 | size_t n_ofp_actions; |
064af421 | 1480 | uint16_t in_port; |
064af421 BP |
1481 | int error; |
1482 | ||
ac51afaf BP |
1483 | COVERAGE_INC(ofproto_packet_out); |
1484 | ||
2228b50d | 1485 | error = reject_slave_controller(ofconn, "OFPT_PACKET_OUT"); |
9deba63b BP |
1486 | if (error) { |
1487 | return error; | |
1488 | } | |
1489 | ||
ac51afaf | 1490 | /* Get ofp_packet_out. */ |
0bc9407d | 1491 | ofpbuf_use_const(&request, oh, ntohs(oh->length)); |
bbc32a88 | 1492 | opo = ofpbuf_pull(&request, offsetof(struct ofp_packet_out, actions)); |
ac51afaf BP |
1493 | |
1494 | /* Get actions. */ | |
1495 | error = ofputil_pull_actions(&request, ntohs(opo->actions_len), | |
1496 | &ofp_actions, &n_ofp_actions); | |
064af421 BP |
1497 | if (error) { |
1498 | return error; | |
1499 | } | |
064af421 | 1500 | |
ac51afaf | 1501 | /* Get payload. */ |
064af421 | 1502 | if (opo->buffer_id != htonl(UINT32_MAX)) { |
10d0a1d2 BP |
1503 | error = ofconn_pktbuf_retrieve(ofconn, ntohl(opo->buffer_id), |
1504 | &buffer, &in_port); | |
7778bd15 | 1505 | if (error || !buffer) { |
064af421 BP |
1506 | return error; |
1507 | } | |
1508 | payload = *buffer; | |
1509 | } else { | |
ac51afaf | 1510 | payload = request; |
064af421 BP |
1511 | buffer = NULL; |
1512 | } | |
1513 | ||
abe529af BP |
1514 | /* Send out packet. */ |
1515 | flow_extract(&payload, 0, ntohs(opo->in_port), &flow); | |
1516 | error = p->ofproto_class->packet_out(p, &payload, &flow, | |
1517 | ofp_actions, n_ofp_actions); | |
ac51afaf | 1518 | ofpbuf_delete(buffer); |
abe529af BP |
1519 | |
1520 | return error; | |
064af421 BP |
1521 | } |
1522 | ||
1523 | static void | |
abe529af | 1524 | update_port_config(struct ofport *port, ovs_be32 config, ovs_be32 mask) |
064af421 | 1525 | { |
abe529af BP |
1526 | ovs_be32 old_config = port->opp.config; |
1527 | ||
064af421 | 1528 | mask &= config ^ port->opp.config; |
9cfcdadf BP |
1529 | if (mask & htonl(OFPPC_PORT_DOWN)) { |
1530 | if (config & htonl(OFPPC_PORT_DOWN)) { | |
064af421 BP |
1531 | netdev_turn_flags_off(port->netdev, NETDEV_UP, true); |
1532 | } else { | |
1533 | netdev_turn_flags_on(port->netdev, NETDEV_UP, true); | |
1534 | } | |
1535 | } | |
abe529af BP |
1536 | |
1537 | port->opp.config ^= mask & (htonl(OFPPC_NO_RECV | OFPPC_NO_RECV_STP | | |
1538 | OFPPC_NO_FLOOD | OFPPC_NO_FWD | | |
1539 | OFPPC_NO_PACKET_IN)); | |
1540 | if (port->opp.config != old_config) { | |
1541 | port->ofproto->ofproto_class->port_reconfigured(port, old_config); | |
064af421 BP |
1542 | } |
1543 | } | |
1544 | ||
1545 | static int | |
d1e2cf21 | 1546 | handle_port_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 1547 | { |
64ff1d96 | 1548 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
d1e2cf21 | 1549 | const struct ofp_port_mod *opm = (const struct ofp_port_mod *) oh; |
064af421 BP |
1550 | struct ofport *port; |
1551 | int error; | |
1552 | ||
2228b50d | 1553 | error = reject_slave_controller(ofconn, "OFPT_PORT_MOD"); |
9deba63b BP |
1554 | if (error) { |
1555 | return error; | |
1556 | } | |
064af421 | 1557 | |
abe529af | 1558 | port = ofproto_get_port(p, ntohs(opm->port_no)); |
064af421 BP |
1559 | if (!port) { |
1560 | return ofp_mkerr(OFPET_PORT_MOD_FAILED, OFPPMFC_BAD_PORT); | |
1561 | } else if (memcmp(port->opp.hw_addr, opm->hw_addr, OFP_ETH_ALEN)) { | |
1562 | return ofp_mkerr(OFPET_PORT_MOD_FAILED, OFPPMFC_BAD_HW_ADDR); | |
1563 | } else { | |
abe529af | 1564 | update_port_config(port, opm->config, opm->mask); |
064af421 BP |
1565 | if (opm->advertise) { |
1566 | netdev_set_advertisements(port->netdev, ntohl(opm->advertise)); | |
1567 | } | |
1568 | } | |
1569 | return 0; | |
1570 | } | |
1571 | ||
1572 | static struct ofpbuf * | |
06a5e131 | 1573 | make_ofp_stats_reply(ovs_be32 xid, ovs_be16 type, size_t body_len) |
064af421 BP |
1574 | { |
1575 | struct ofp_stats_reply *osr; | |
1576 | struct ofpbuf *msg; | |
1577 | ||
1578 | msg = ofpbuf_new(MIN(sizeof *osr + body_len, UINT16_MAX)); | |
1579 | osr = put_openflow_xid(sizeof *osr, OFPT_STATS_REPLY, xid, msg); | |
1580 | osr->type = type; | |
1581 | osr->flags = htons(0); | |
1582 | return msg; | |
1583 | } | |
1584 | ||
1585 | static struct ofpbuf * | |
d1e2cf21 | 1586 | start_ofp_stats_reply(const struct ofp_header *request, size_t body_len) |
064af421 | 1587 | { |
d1e2cf21 BP |
1588 | const struct ofp_stats_request *osr |
1589 | = (const struct ofp_stats_request *) request; | |
1590 | return make_ofp_stats_reply(osr->header.xid, osr->type, body_len); | |
064af421 BP |
1591 | } |
1592 | ||
1593 | static void * | |
06a5e131 BP |
1594 | append_ofp_stats_reply(size_t nbytes, struct ofconn *ofconn, |
1595 | struct ofpbuf **msgp) | |
064af421 BP |
1596 | { |
1597 | struct ofpbuf *msg = *msgp; | |
1598 | assert(nbytes <= UINT16_MAX - sizeof(struct ofp_stats_reply)); | |
1599 | if (nbytes + msg->size > UINT16_MAX) { | |
1600 | struct ofp_stats_reply *reply = msg->data; | |
1601 | reply->flags = htons(OFPSF_REPLY_MORE); | |
06a5e131 | 1602 | *msgp = make_ofp_stats_reply(reply->header.xid, reply->type, nbytes); |
b0421aa2 | 1603 | ofconn_send_reply(ofconn, msg); |
064af421 BP |
1604 | } |
1605 | return ofpbuf_put_uninit(*msgp, nbytes); | |
1606 | } | |
1607 | ||
09246b99 BP |
1608 | static struct ofpbuf * |
1609 | make_nxstats_reply(ovs_be32 xid, ovs_be32 subtype, size_t body_len) | |
1610 | { | |
1611 | struct nicira_stats_msg *nsm; | |
1612 | struct ofpbuf *msg; | |
1613 | ||
1614 | msg = ofpbuf_new(MIN(sizeof *nsm + body_len, UINT16_MAX)); | |
1615 | nsm = put_openflow_xid(sizeof *nsm, OFPT_STATS_REPLY, xid, msg); | |
1616 | nsm->type = htons(OFPST_VENDOR); | |
1617 | nsm->flags = htons(0); | |
1618 | nsm->vendor = htonl(NX_VENDOR_ID); | |
d5f2379b | 1619 | nsm->subtype = subtype; |
09246b99 BP |
1620 | return msg; |
1621 | } | |
1622 | ||
1623 | static struct ofpbuf * | |
1624 | start_nxstats_reply(const struct nicira_stats_msg *request, size_t body_len) | |
1625 | { | |
1626 | return make_nxstats_reply(request->header.xid, request->subtype, body_len); | |
1627 | } | |
1628 | ||
1629 | static void | |
1630 | append_nxstats_reply(size_t nbytes, struct ofconn *ofconn, | |
1631 | struct ofpbuf **msgp) | |
1632 | { | |
1633 | struct ofpbuf *msg = *msgp; | |
1634 | assert(nbytes <= UINT16_MAX - sizeof(struct nicira_stats_msg)); | |
1635 | if (nbytes + msg->size > UINT16_MAX) { | |
1636 | struct nicira_stats_msg *reply = msg->data; | |
1637 | reply->flags = htons(OFPSF_REPLY_MORE); | |
1638 | *msgp = make_nxstats_reply(reply->header.xid, reply->subtype, nbytes); | |
b0421aa2 | 1639 | ofconn_send_reply(ofconn, msg); |
09246b99 BP |
1640 | } |
1641 | ofpbuf_prealloc_tailroom(*msgp, nbytes); | |
1642 | } | |
1643 | ||
064af421 | 1644 | static int |
3269c562 | 1645 | handle_desc_stats_request(struct ofconn *ofconn, |
d1e2cf21 | 1646 | const struct ofp_header *request) |
064af421 | 1647 | { |
64ff1d96 | 1648 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 BP |
1649 | struct ofp_desc_stats *ods; |
1650 | struct ofpbuf *msg; | |
1651 | ||
06a5e131 BP |
1652 | msg = start_ofp_stats_reply(request, sizeof *ods); |
1653 | ods = append_ofp_stats_reply(sizeof *ods, ofconn, &msg); | |
5a719c38 JP |
1654 | memset(ods, 0, sizeof *ods); |
1655 | ovs_strlcpy(ods->mfr_desc, p->mfr_desc, sizeof ods->mfr_desc); | |
1656 | ovs_strlcpy(ods->hw_desc, p->hw_desc, sizeof ods->hw_desc); | |
1657 | ovs_strlcpy(ods->sw_desc, p->sw_desc, sizeof ods->sw_desc); | |
1658 | ovs_strlcpy(ods->serial_num, p->serial_desc, sizeof ods->serial_num); | |
1659 | ovs_strlcpy(ods->dp_desc, p->dp_desc, sizeof ods->dp_desc); | |
b0421aa2 | 1660 | ofconn_send_reply(ofconn, msg); |
064af421 BP |
1661 | |
1662 | return 0; | |
1663 | } | |
1664 | ||
064af421 | 1665 | static int |
3269c562 | 1666 | handle_table_stats_request(struct ofconn *ofconn, |
d1e2cf21 | 1667 | const struct ofp_header *request) |
064af421 | 1668 | { |
64ff1d96 | 1669 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 BP |
1670 | struct ofp_table_stats *ots; |
1671 | struct ofpbuf *msg; | |
064af421 | 1672 | |
06a5e131 | 1673 | msg = start_ofp_stats_reply(request, sizeof *ots * 2); |
064af421 | 1674 | |
064af421 | 1675 | /* Classifier table. */ |
06a5e131 | 1676 | ots = append_ofp_stats_reply(sizeof *ots, ofconn, &msg); |
064af421 | 1677 | memset(ots, 0, sizeof *ots); |
064af421 | 1678 | strcpy(ots->name, "classifier"); |
f1dd9191 | 1679 | ots->wildcards = (ofconn_get_flow_format(ofconn) == NXFF_OPENFLOW10 |
f9bfea14 | 1680 | ? htonl(OFPFW_ALL) : htonl(OVSFW_ALL)); |
ad828225 | 1681 | ots->max_entries = htonl(1024 * 1024); /* An arbitrary big number. */ |
bcf84111 | 1682 | ots->active_count = htonl(classifier_count(&p->cls)); |
c4617b3c BP |
1683 | put_32aligned_be64(&ots->lookup_count, htonll(0)); /* XXX */ |
1684 | put_32aligned_be64(&ots->matched_count, htonll(0)); /* XXX */ | |
064af421 | 1685 | |
b0421aa2 | 1686 | ofconn_send_reply(ofconn, msg); |
064af421 BP |
1687 | return 0; |
1688 | } | |
1689 | ||
abaad8cf | 1690 | static void |
ca0f572c | 1691 | append_port_stat(struct ofport *port, struct ofconn *ofconn, |
a4948b95 | 1692 | struct ofpbuf **msgp) |
abaad8cf JP |
1693 | { |
1694 | struct netdev_stats stats; | |
1695 | struct ofp_port_stats *ops; | |
1696 | ||
d295e8e9 JP |
1697 | /* Intentionally ignore return value, since errors will set |
1698 | * 'stats' to all-1s, which is correct for OpenFlow, and | |
abaad8cf JP |
1699 | * netdev_get_stats() will log errors. */ |
1700 | netdev_get_stats(port->netdev, &stats); | |
1701 | ||
06a5e131 | 1702 | ops = append_ofp_stats_reply(sizeof *ops, ofconn, msgp); |
9cfcdadf | 1703 | ops->port_no = port->opp.port_no; |
abaad8cf | 1704 | memset(ops->pad, 0, sizeof ops->pad); |
c4617b3c BP |
1705 | put_32aligned_be64(&ops->rx_packets, htonll(stats.rx_packets)); |
1706 | put_32aligned_be64(&ops->tx_packets, htonll(stats.tx_packets)); | |
1707 | put_32aligned_be64(&ops->rx_bytes, htonll(stats.rx_bytes)); | |
1708 | put_32aligned_be64(&ops->tx_bytes, htonll(stats.tx_bytes)); | |
1709 | put_32aligned_be64(&ops->rx_dropped, htonll(stats.rx_dropped)); | |
1710 | put_32aligned_be64(&ops->tx_dropped, htonll(stats.tx_dropped)); | |
1711 | put_32aligned_be64(&ops->rx_errors, htonll(stats.rx_errors)); | |
1712 | put_32aligned_be64(&ops->tx_errors, htonll(stats.tx_errors)); | |
1713 | put_32aligned_be64(&ops->rx_frame_err, htonll(stats.rx_frame_errors)); | |
1714 | put_32aligned_be64(&ops->rx_over_err, htonll(stats.rx_over_errors)); | |
1715 | put_32aligned_be64(&ops->rx_crc_err, htonll(stats.rx_crc_errors)); | |
1716 | put_32aligned_be64(&ops->collisions, htonll(stats.collisions)); | |
abaad8cf JP |
1717 | } |
1718 | ||
064af421 | 1719 | static int |
d1e2cf21 | 1720 | handle_port_stats_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 1721 | { |
64ff1d96 | 1722 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
d1e2cf21 | 1723 | const struct ofp_port_stats_request *psr = ofputil_stats_body(oh); |
064af421 BP |
1724 | struct ofp_port_stats *ops; |
1725 | struct ofpbuf *msg; | |
1726 | struct ofport *port; | |
064af421 | 1727 | |
d1e2cf21 | 1728 | msg = start_ofp_stats_reply(oh, sizeof *ops * 16); |
abaad8cf | 1729 | if (psr->port_no != htons(OFPP_NONE)) { |
abe529af | 1730 | port = ofproto_get_port(p, ntohs(psr->port_no)); |
abaad8cf | 1731 | if (port) { |
ca0f572c | 1732 | append_port_stat(port, ofconn, &msg); |
abaad8cf JP |
1733 | } |
1734 | } else { | |
4e8e4213 | 1735 | HMAP_FOR_EACH (port, hmap_node, &p->ports) { |
ca0f572c | 1736 | append_port_stat(port, ofconn, &msg); |
abaad8cf | 1737 | } |
064af421 BP |
1738 | } |
1739 | ||
b0421aa2 | 1740 | ofconn_send_reply(ofconn, msg); |
064af421 BP |
1741 | return 0; |
1742 | } | |
1743 | ||
c6ebb8fb | 1744 | static void |
588cd7b5 | 1745 | calc_flow_duration__(long long int start, uint32_t *sec, uint32_t *nsec) |
c6ebb8fb BP |
1746 | { |
1747 | long long int msecs = time_msec() - start; | |
588cd7b5 BP |
1748 | *sec = msecs / 1000; |
1749 | *nsec = (msecs % 1000) * (1000 * 1000); | |
1750 | } | |
1751 | ||
1752 | static void | |
1753 | calc_flow_duration(long long int start, ovs_be32 *sec_be, ovs_be32 *nsec_be) | |
1754 | { | |
1755 | uint32_t sec, nsec; | |
1756 | ||
1757 | calc_flow_duration__(start, &sec, &nsec); | |
1758 | *sec_be = htonl(sec); | |
1759 | *nsec_be = htonl(nsec); | |
c6ebb8fb BP |
1760 | } |
1761 | ||
064af421 | 1762 | static void |
5ecc9d81 BP |
1763 | put_ofp_flow_stats(struct ofconn *ofconn, struct rule *rule, |
1764 | ovs_be16 out_port, struct ofpbuf **replyp) | |
064af421 | 1765 | { |
abe529af | 1766 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
064af421 BP |
1767 | struct ofp_flow_stats *ofs; |
1768 | uint64_t packet_count, byte_count; | |
c4617b3c | 1769 | ovs_be64 cookie; |
064af421 BP |
1770 | size_t act_len, len; |
1771 | ||
5ecc9d81 | 1772 | if (rule_is_hidden(rule) || !rule_has_out_port(rule, out_port)) { |
064af421 BP |
1773 | return; |
1774 | } | |
1775 | ||
1776 | act_len = sizeof *rule->actions * rule->n_actions; | |
1777 | len = offsetof(struct ofp_flow_stats, actions) + act_len; | |
1778 | ||
abe529af | 1779 | ofproto->ofproto_class->rule_get_stats(rule, &packet_count, &byte_count); |
064af421 | 1780 | |
5ecc9d81 | 1781 | ofs = append_ofp_stats_reply(len, ofconn, replyp); |
064af421 | 1782 | ofs->length = htons(len); |
ad828225 | 1783 | ofs->table_id = 0; |
064af421 | 1784 | ofs->pad = 0; |
f1dd9191 BP |
1785 | ofputil_cls_rule_to_match(&rule->cr, ofconn_get_flow_format(ofconn), |
1786 | &ofs->match, rule->flow_cookie, &cookie); | |
c4617b3c | 1787 | put_32aligned_be64(&ofs->cookie, cookie); |
c6ebb8fb | 1788 | calc_flow_duration(rule->created, &ofs->duration_sec, &ofs->duration_nsec); |
064af421 BP |
1789 | ofs->priority = htons(rule->cr.priority); |
1790 | ofs->idle_timeout = htons(rule->idle_timeout); | |
1791 | ofs->hard_timeout = htons(rule->hard_timeout); | |
39997502 | 1792 | memset(ofs->pad2, 0, sizeof ofs->pad2); |
c4617b3c BP |
1793 | put_32aligned_be64(&ofs->packet_count, htonll(packet_count)); |
1794 | put_32aligned_be64(&ofs->byte_count, htonll(byte_count)); | |
3dffcf07 BP |
1795 | if (rule->n_actions > 0) { |
1796 | memcpy(ofs->actions, rule->actions, act_len); | |
1797 | } | |
064af421 BP |
1798 | } |
1799 | ||
3c4486a5 BP |
1800 | static bool |
1801 | is_valid_table(uint8_t table_id) | |
064af421 | 1802 | { |
a02e5331 BP |
1803 | if (table_id == 0 || table_id == 0xff) { |
1804 | return true; | |
1805 | } else { | |
1806 | /* It would probably be better to reply with an error but there doesn't | |
1807 | * seem to be any appropriate value, so that might just be | |
1808 | * confusing. */ | |
1809 | VLOG_WARN_RL(&rl, "controller asked for invalid table %"PRIu8, | |
1810 | table_id); | |
1811 | return false; | |
1812 | } | |
064af421 BP |
1813 | } |
1814 | ||
1815 | static int | |
d1e2cf21 | 1816 | handle_flow_stats_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 1817 | { |
d1e2cf21 | 1818 | const struct ofp_flow_stats_request *fsr = ofputil_stats_body(oh); |
64ff1d96 | 1819 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
5ecc9d81 | 1820 | struct ofpbuf *reply; |
064af421 | 1821 | |
064af421 | 1822 | COVERAGE_INC(ofproto_flows_req); |
d1e2cf21 | 1823 | reply = start_ofp_stats_reply(oh, 1024); |
3c4486a5 | 1824 | if (is_valid_table(fsr->table_id)) { |
5ecc9d81 | 1825 | struct cls_cursor cursor; |
3c4486a5 | 1826 | struct cls_rule target; |
5ecc9d81 | 1827 | struct rule *rule; |
3c4486a5 | 1828 | |
d8ae4d67 BP |
1829 | ofputil_cls_rule_from_match(&fsr->match, 0, NXFF_OPENFLOW10, 0, |
1830 | &target); | |
64ff1d96 | 1831 | cls_cursor_init(&cursor, &ofproto->cls, &target); |
5ecc9d81 BP |
1832 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { |
1833 | put_ofp_flow_stats(ofconn, rule, fsr->out_port, &reply); | |
1834 | } | |
3c4486a5 | 1835 | } |
b0421aa2 | 1836 | ofconn_send_reply(ofconn, reply); |
3c4486a5 | 1837 | |
064af421 BP |
1838 | return 0; |
1839 | } | |
1840 | ||
09246b99 | 1841 | static void |
5ecc9d81 BP |
1842 | put_nx_flow_stats(struct ofconn *ofconn, struct rule *rule, |
1843 | ovs_be16 out_port, struct ofpbuf **replyp) | |
09246b99 | 1844 | { |
09246b99 BP |
1845 | struct nx_flow_stats *nfs; |
1846 | uint64_t packet_count, byte_count; | |
1847 | size_t act_len, start_len; | |
5ecc9d81 | 1848 | struct ofpbuf *reply; |
09246b99 | 1849 | |
5ecc9d81 | 1850 | if (rule_is_hidden(rule) || !rule_has_out_port(rule, out_port)) { |
09246b99 BP |
1851 | return; |
1852 | } | |
1853 | ||
abe529af BP |
1854 | rule->ofproto->ofproto_class->rule_get_stats(rule, |
1855 | &packet_count, &byte_count); | |
09246b99 BP |
1856 | |
1857 | act_len = sizeof *rule->actions * rule->n_actions; | |
1858 | ||
5ecc9d81 | 1859 | append_nxstats_reply(sizeof *nfs + NXM_MAX_LEN + act_len, ofconn, replyp); |
1dfee98d | 1860 | start_len = (*replyp)->size; |
5ecc9d81 BP |
1861 | reply = *replyp; |
1862 | ||
1863 | nfs = ofpbuf_put_uninit(reply, sizeof *nfs); | |
09246b99 BP |
1864 | nfs->table_id = 0; |
1865 | nfs->pad = 0; | |
1866 | calc_flow_duration(rule->created, &nfs->duration_sec, &nfs->duration_nsec); | |
1867 | nfs->cookie = rule->flow_cookie; | |
1868 | nfs->priority = htons(rule->cr.priority); | |
1869 | nfs->idle_timeout = htons(rule->idle_timeout); | |
1870 | nfs->hard_timeout = htons(rule->hard_timeout); | |
5ecc9d81 | 1871 | nfs->match_len = htons(nx_put_match(reply, &rule->cr)); |
09246b99 BP |
1872 | memset(nfs->pad2, 0, sizeof nfs->pad2); |
1873 | nfs->packet_count = htonll(packet_count); | |
1874 | nfs->byte_count = htonll(byte_count); | |
1875 | if (rule->n_actions > 0) { | |
5ecc9d81 | 1876 | ofpbuf_put(reply, rule->actions, act_len); |
09246b99 | 1877 | } |
5ecc9d81 | 1878 | nfs->length = htons(reply->size - start_len); |
09246b99 BP |
1879 | } |
1880 | ||
1881 | static int | |
d1e2cf21 | 1882 | handle_nxst_flow(struct ofconn *ofconn, const struct ofp_header *oh) |
09246b99 | 1883 | { |
64ff1d96 | 1884 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
09246b99 | 1885 | struct nx_flow_stats_request *nfsr; |
09246b99 | 1886 | struct cls_rule target; |
5ecc9d81 | 1887 | struct ofpbuf *reply; |
d1e2cf21 | 1888 | struct ofpbuf b; |
09246b99 BP |
1889 | int error; |
1890 | ||
0bc9407d | 1891 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
d1e2cf21 | 1892 | |
09246b99 | 1893 | /* Dissect the message. */ |
bbc32a88 | 1894 | nfsr = ofpbuf_pull(&b, sizeof *nfsr); |
d1e2cf21 | 1895 | error = nx_pull_match(&b, ntohs(nfsr->match_len), 0, &target); |
09246b99 BP |
1896 | if (error) { |
1897 | return error; | |
1898 | } | |
d1e2cf21 BP |
1899 | if (b.size) { |
1900 | return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_BAD_LEN); | |
1901 | } | |
09246b99 BP |
1902 | |
1903 | COVERAGE_INC(ofproto_flows_req); | |
5ecc9d81 | 1904 | reply = start_nxstats_reply(&nfsr->nsm, 1024); |
3c4486a5 | 1905 | if (is_valid_table(nfsr->table_id)) { |
5ecc9d81 BP |
1906 | struct cls_cursor cursor; |
1907 | struct rule *rule; | |
1908 | ||
64ff1d96 | 1909 | cls_cursor_init(&cursor, &ofproto->cls, &target); |
5ecc9d81 BP |
1910 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { |
1911 | put_nx_flow_stats(ofconn, rule, nfsr->out_port, &reply); | |
1912 | } | |
3c4486a5 | 1913 | } |
b0421aa2 | 1914 | ofconn_send_reply(ofconn, reply); |
5ecc9d81 | 1915 | |
09246b99 BP |
1916 | return 0; |
1917 | } | |
1918 | ||
4f2cad2c | 1919 | static void |
3394b5b6 | 1920 | flow_stats_ds(struct rule *rule, struct ds *results) |
4f2cad2c | 1921 | { |
4f2cad2c JP |
1922 | uint64_t packet_count, byte_count; |
1923 | size_t act_len = sizeof *rule->actions * rule->n_actions; | |
1924 | ||
abe529af BP |
1925 | rule->ofproto->ofproto_class->rule_get_stats(rule, |
1926 | &packet_count, &byte_count); | |
4f2cad2c JP |
1927 | |
1928 | ds_put_format(results, "duration=%llds, ", | |
1929 | (time_msec() - rule->created) / 1000); | |
52ae00b3 | 1930 | ds_put_format(results, "priority=%u, ", rule->cr.priority); |
4f2cad2c JP |
1931 | ds_put_format(results, "n_packets=%"PRIu64", ", packet_count); |
1932 | ds_put_format(results, "n_bytes=%"PRIu64", ", byte_count); | |
cb833cf6 | 1933 | cls_rule_format(&rule->cr, results); |
a5df0e72 | 1934 | ds_put_char(results, ','); |
3dffcf07 BP |
1935 | if (act_len > 0) { |
1936 | ofp_print_actions(results, &rule->actions->header, act_len); | |
3c8552c1 JP |
1937 | } else { |
1938 | ds_put_cstr(results, "drop"); | |
3dffcf07 | 1939 | } |
4f2cad2c JP |
1940 | ds_put_cstr(results, "\n"); |
1941 | } | |
1942 | ||
d295e8e9 | 1943 | /* Adds a pretty-printed description of all flows to 'results', including |
ee8b231c | 1944 | * hidden flows (e.g., set up by in-band control). */ |
4f2cad2c JP |
1945 | void |
1946 | ofproto_get_all_flows(struct ofproto *p, struct ds *results) | |
1947 | { | |
5ecc9d81 BP |
1948 | struct cls_cursor cursor; |
1949 | struct rule *rule; | |
064af421 | 1950 | |
5ecc9d81 BP |
1951 | cls_cursor_init(&cursor, &p->cls, NULL); |
1952 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { | |
3394b5b6 | 1953 | flow_stats_ds(rule, results); |
064af421 | 1954 | } |
064af421 BP |
1955 | } |
1956 | ||
b5827b24 BP |
1957 | /* Obtains the NetFlow engine type and engine ID for 'ofproto' into |
1958 | * '*engine_type' and '*engine_id', respectively. */ | |
1959 | void | |
1960 | ofproto_get_netflow_ids(const struct ofproto *ofproto, | |
1961 | uint8_t *engine_type, uint8_t *engine_id) | |
1962 | { | |
abe529af | 1963 | ofproto->ofproto_class->get_netflow_ids(ofproto, engine_type, engine_id); |
b5827b24 BP |
1964 | } |
1965 | ||
27d34fce BP |
1966 | static void |
1967 | query_aggregate_stats(struct ofproto *ofproto, struct cls_rule *target, | |
734bbeb4 | 1968 | ovs_be16 out_port, uint8_t table_id, |
27d34fce BP |
1969 | struct ofp_aggregate_stats_reply *oasr) |
1970 | { | |
5ecc9d81 BP |
1971 | uint64_t total_packets = 0; |
1972 | uint64_t total_bytes = 0; | |
1973 | int n_flows = 0; | |
27d34fce BP |
1974 | |
1975 | COVERAGE_INC(ofproto_agg_request); | |
5ecc9d81 | 1976 | |
3c4486a5 | 1977 | if (is_valid_table(table_id)) { |
5ecc9d81 BP |
1978 | struct cls_cursor cursor; |
1979 | struct rule *rule; | |
3c4486a5 | 1980 | |
5ecc9d81 BP |
1981 | cls_cursor_init(&cursor, &ofproto->cls, target); |
1982 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { | |
1983 | if (!rule_is_hidden(rule) && rule_has_out_port(rule, out_port)) { | |
1984 | uint64_t packet_count; | |
1985 | uint64_t byte_count; | |
1986 | ||
abe529af BP |
1987 | ofproto->ofproto_class->rule_get_stats(rule, &packet_count, |
1988 | &byte_count); | |
5ecc9d81 BP |
1989 | |
1990 | total_packets += packet_count; | |
1991 | total_bytes += byte_count; | |
1992 | n_flows++; | |
1993 | } | |
1994 | } | |
3c4486a5 | 1995 | } |
27d34fce | 1996 | |
5ecc9d81 | 1997 | oasr->flow_count = htonl(n_flows); |
c4617b3c BP |
1998 | put_32aligned_be64(&oasr->packet_count, htonll(total_packets)); |
1999 | put_32aligned_be64(&oasr->byte_count, htonll(total_bytes)); | |
27d34fce BP |
2000 | memset(oasr->pad, 0, sizeof oasr->pad); |
2001 | } | |
2002 | ||
064af421 | 2003 | static int |
3269c562 | 2004 | handle_aggregate_stats_request(struct ofconn *ofconn, |
d1e2cf21 | 2005 | const struct ofp_header *oh) |
064af421 | 2006 | { |
d1e2cf21 | 2007 | const struct ofp_aggregate_stats_request *request = ofputil_stats_body(oh); |
64ff1d96 | 2008 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
064af421 | 2009 | struct ofp_aggregate_stats_reply *reply; |
064af421 BP |
2010 | struct cls_rule target; |
2011 | struct ofpbuf *msg; | |
2012 | ||
d8ae4d67 BP |
2013 | ofputil_cls_rule_from_match(&request->match, 0, NXFF_OPENFLOW10, 0, |
2014 | &target); | |
064af421 | 2015 | |
d1e2cf21 | 2016 | msg = start_ofp_stats_reply(oh, sizeof *reply); |
06a5e131 | 2017 | reply = append_ofp_stats_reply(sizeof *reply, ofconn, &msg); |
64ff1d96 | 2018 | query_aggregate_stats(ofproto, &target, request->out_port, |
27d34fce | 2019 | request->table_id, reply); |
b0421aa2 | 2020 | ofconn_send_reply(ofconn, msg); |
064af421 BP |
2021 | return 0; |
2022 | } | |
2023 | ||
09246b99 | 2024 | static int |
d1e2cf21 | 2025 | handle_nxst_aggregate(struct ofconn *ofconn, const struct ofp_header *oh) |
09246b99 | 2026 | { |
64ff1d96 | 2027 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
09246b99 BP |
2028 | struct nx_aggregate_stats_request *request; |
2029 | struct ofp_aggregate_stats_reply *reply; | |
2030 | struct cls_rule target; | |
d1e2cf21 | 2031 | struct ofpbuf b; |
09246b99 BP |
2032 | struct ofpbuf *buf; |
2033 | int error; | |
2034 | ||
0bc9407d | 2035 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
d1e2cf21 | 2036 | |
09246b99 | 2037 | /* Dissect the message. */ |
bbc32a88 | 2038 | request = ofpbuf_pull(&b, sizeof *request); |
d1e2cf21 | 2039 | error = nx_pull_match(&b, ntohs(request->match_len), 0, &target); |
09246b99 BP |
2040 | if (error) { |
2041 | return error; | |
2042 | } | |
d1e2cf21 BP |
2043 | if (b.size) { |
2044 | return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_BAD_LEN); | |
2045 | } | |
09246b99 BP |
2046 | |
2047 | /* Reply. */ | |
2048 | COVERAGE_INC(ofproto_flows_req); | |
2049 | buf = start_nxstats_reply(&request->nsm, sizeof *reply); | |
2050 | reply = ofpbuf_put_uninit(buf, sizeof *reply); | |
64ff1d96 | 2051 | query_aggregate_stats(ofproto, &target, request->out_port, |
09246b99 | 2052 | request->table_id, reply); |
b0421aa2 | 2053 | ofconn_send_reply(ofconn, buf); |
09246b99 BP |
2054 | |
2055 | return 0; | |
2056 | } | |
2057 | ||
c1c9c9c4 BP |
2058 | struct queue_stats_cbdata { |
2059 | struct ofconn *ofconn; | |
ca0f572c | 2060 | struct ofport *ofport; |
c1c9c9c4 | 2061 | struct ofpbuf *msg; |
c1c9c9c4 BP |
2062 | }; |
2063 | ||
2064 | static void | |
db9220c3 | 2065 | put_queue_stats(struct queue_stats_cbdata *cbdata, uint32_t queue_id, |
c1c9c9c4 BP |
2066 | const struct netdev_queue_stats *stats) |
2067 | { | |
2068 | struct ofp_queue_stats *reply; | |
2069 | ||
06a5e131 | 2070 | reply = append_ofp_stats_reply(sizeof *reply, cbdata->ofconn, &cbdata->msg); |
9cfcdadf | 2071 | reply->port_no = cbdata->ofport->opp.port_no; |
c1c9c9c4 BP |
2072 | memset(reply->pad, 0, sizeof reply->pad); |
2073 | reply->queue_id = htonl(queue_id); | |
c4617b3c BP |
2074 | put_32aligned_be64(&reply->tx_bytes, htonll(stats->tx_bytes)); |
2075 | put_32aligned_be64(&reply->tx_packets, htonll(stats->tx_packets)); | |
2076 | put_32aligned_be64(&reply->tx_errors, htonll(stats->tx_errors)); | |
c1c9c9c4 BP |
2077 | } |
2078 | ||
2079 | static void | |
db9220c3 | 2080 | handle_queue_stats_dump_cb(uint32_t queue_id, |
c1c9c9c4 BP |
2081 | struct netdev_queue_stats *stats, |
2082 | void *cbdata_) | |
2083 | { | |
2084 | struct queue_stats_cbdata *cbdata = cbdata_; | |
2085 | ||
2086 | put_queue_stats(cbdata, queue_id, stats); | |
2087 | } | |
2088 | ||
2089 | static void | |
ca0f572c | 2090 | handle_queue_stats_for_port(struct ofport *port, uint32_t queue_id, |
c1c9c9c4 BP |
2091 | struct queue_stats_cbdata *cbdata) |
2092 | { | |
ca0f572c | 2093 | cbdata->ofport = port; |
c1c9c9c4 BP |
2094 | if (queue_id == OFPQ_ALL) { |
2095 | netdev_dump_queue_stats(port->netdev, | |
2096 | handle_queue_stats_dump_cb, cbdata); | |
2097 | } else { | |
2098 | struct netdev_queue_stats stats; | |
2099 | ||
1ac788f6 BP |
2100 | if (!netdev_get_queue_stats(port->netdev, queue_id, &stats)) { |
2101 | put_queue_stats(cbdata, queue_id, &stats); | |
2102 | } | |
c1c9c9c4 BP |
2103 | } |
2104 | } | |
2105 | ||
2106 | static int | |
d1e2cf21 | 2107 | handle_queue_stats_request(struct ofconn *ofconn, const struct ofp_header *oh) |
c1c9c9c4 | 2108 | { |
64ff1d96 | 2109 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
d1e2cf21 | 2110 | const struct ofp_queue_stats_request *qsr; |
c1c9c9c4 BP |
2111 | struct queue_stats_cbdata cbdata; |
2112 | struct ofport *port; | |
2113 | unsigned int port_no; | |
2114 | uint32_t queue_id; | |
2115 | ||
d1e2cf21 BP |
2116 | qsr = ofputil_stats_body(oh); |
2117 | if (!qsr) { | |
c1c9c9c4 BP |
2118 | return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_BAD_LEN); |
2119 | } | |
c1c9c9c4 BP |
2120 | |
2121 | COVERAGE_INC(ofproto_queue_req); | |
2122 | ||
2123 | cbdata.ofconn = ofconn; | |
d1e2cf21 | 2124 | cbdata.msg = start_ofp_stats_reply(oh, 128); |
c1c9c9c4 BP |
2125 | |
2126 | port_no = ntohs(qsr->port_no); | |
2127 | queue_id = ntohl(qsr->queue_id); | |
2128 | if (port_no == OFPP_ALL) { | |
4e8e4213 | 2129 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
ca0f572c | 2130 | handle_queue_stats_for_port(port, queue_id, &cbdata); |
c1c9c9c4 | 2131 | } |
abe529af BP |
2132 | } else if (port_no < OFPP_MAX) { |
2133 | port = ofproto_get_port(ofproto, port_no); | |
c1c9c9c4 | 2134 | if (port) { |
ca0f572c | 2135 | handle_queue_stats_for_port(port, queue_id, &cbdata); |
c1c9c9c4 BP |
2136 | } |
2137 | } else { | |
2138 | ofpbuf_delete(cbdata.msg); | |
2139 | return ofp_mkerr(OFPET_QUEUE_OP_FAILED, OFPQOFC_BAD_PORT); | |
2140 | } | |
b0421aa2 | 2141 | ofconn_send_reply(ofconn, cbdata.msg); |
c1c9c9c4 BP |
2142 | |
2143 | return 0; | |
2144 | } | |
2145 | ||
79eee1eb BP |
2146 | /* Implements OFPFC_ADD and the cases for OFPFC_MODIFY and OFPFC_MODIFY_STRICT |
2147 | * in which no matching flow already exists in the flow table. | |
2148 | * | |
2149 | * Adds the flow specified by 'ofm', which is followed by 'n_actions' | |
64ff1d96 | 2150 | * ofp_actions, to the ofproto's flow table. Returns 0 on success or an |
3269c562 | 2151 | * OpenFlow error code as encoded by ofp_mkerr() on failure. |
79eee1eb BP |
2152 | * |
2153 | * 'ofconn' is used to retrieve the packet buffer specified in ofm->buffer_id, | |
2154 | * if any. */ | |
064af421 | 2155 | static int |
3052b0c5 | 2156 | add_flow(struct ofconn *ofconn, struct flow_mod *fm) |
064af421 | 2157 | { |
64ff1d96 | 2158 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 BP |
2159 | struct ofpbuf *packet; |
2160 | struct rule *rule; | |
2161 | uint16_t in_port; | |
abe529af | 2162 | int buf_err; |
064af421 BP |
2163 | int error; |
2164 | ||
3052b0c5 BP |
2165 | if (fm->flags & OFPFF_CHECK_OVERLAP |
2166 | && classifier_rule_overlaps(&p->cls, &fm->cr)) { | |
2167 | return ofp_mkerr(OFPET_FLOW_MOD_FAILED, OFPFMFC_OVERLAP); | |
49bdc010 | 2168 | } |
abe529af BP |
2169 | |
2170 | buf_err = ofconn_pktbuf_retrieve(ofconn, fm->buffer_id, &packet, &in_port); | |
2171 | error = rule_create(p, &fm->cr, fm->actions, fm->n_actions, | |
2172 | fm->idle_timeout, fm->hard_timeout, fm->cookie, | |
2173 | fm->flags & OFPFF_SEND_FLOW_REM, &rule); | |
2174 | if (error) { | |
2175 | ofpbuf_delete(packet); | |
2176 | return error; | |
064af421 BP |
2177 | } |
2178 | ||
afe75089 | 2179 | if (packet) { |
5bf0e941 BP |
2180 | assert(!buf_err); |
2181 | return rule_execute(rule, in_port, packet); | |
afe75089 | 2182 | } |
abe529af | 2183 | return buf_err; |
064af421 BP |
2184 | } |
2185 | ||
79eee1eb | 2186 | static struct rule * |
3052b0c5 | 2187 | find_flow_strict(struct ofproto *p, const struct flow_mod *fm) |
064af421 | 2188 | { |
3052b0c5 | 2189 | return rule_from_cls_rule(classifier_find_rule_exactly(&p->cls, &fm->cr)); |
79eee1eb | 2190 | } |
064af421 | 2191 | |
79eee1eb | 2192 | static int |
3269c562 | 2193 | send_buffered_packet(struct ofconn *ofconn, |
3052b0c5 | 2194 | struct rule *rule, uint32_t buffer_id) |
79eee1eb BP |
2195 | { |
2196 | struct ofpbuf *packet; | |
2197 | uint16_t in_port; | |
79eee1eb | 2198 | int error; |
064af421 | 2199 | |
3052b0c5 | 2200 | if (buffer_id == UINT32_MAX) { |
79eee1eb | 2201 | return 0; |
064af421 | 2202 | } |
79eee1eb | 2203 | |
10d0a1d2 | 2204 | error = ofconn_pktbuf_retrieve(ofconn, buffer_id, &packet, &in_port); |
79eee1eb BP |
2205 | if (error) { |
2206 | return error; | |
2207 | } | |
2208 | ||
5bf0e941 | 2209 | return rule_execute(rule, in_port, packet); |
064af421 | 2210 | } |
79eee1eb BP |
2211 | \f |
2212 | /* OFPFC_MODIFY and OFPFC_MODIFY_STRICT. */ | |
064af421 BP |
2213 | |
2214 | struct modify_flows_cbdata { | |
2215 | struct ofproto *ofproto; | |
3052b0c5 | 2216 | const struct flow_mod *fm; |
79eee1eb | 2217 | struct rule *match; |
064af421 BP |
2218 | }; |
2219 | ||
abe529af | 2220 | static int modify_flow(const struct flow_mod *, struct rule *); |
79eee1eb BP |
2221 | |
2222 | /* Implements OFPFC_MODIFY. Returns 0 on success or an OpenFlow error code as | |
2223 | * encoded by ofp_mkerr() on failure. | |
2224 | * | |
2225 | * 'ofconn' is used to retrieve the packet buffer specified in ofm->buffer_id, | |
2226 | * if any. */ | |
2227 | static int | |
3052b0c5 | 2228 | modify_flows_loose(struct ofconn *ofconn, struct flow_mod *fm) |
79eee1eb | 2229 | { |
64ff1d96 | 2230 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
5ecc9d81 BP |
2231 | struct rule *match = NULL; |
2232 | struct cls_cursor cursor; | |
2233 | struct rule *rule; | |
abe529af | 2234 | int error; |
79eee1eb | 2235 | |
abe529af | 2236 | error = 0; |
5ecc9d81 BP |
2237 | cls_cursor_init(&cursor, &p->cls, &fm->cr); |
2238 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { | |
2239 | if (!rule_is_hidden(rule)) { | |
abe529af BP |
2240 | int retval = modify_flow(fm, rule); |
2241 | if (!retval) { | |
2242 | match = rule; | |
2243 | } else { | |
2244 | error = retval; | |
2245 | } | |
5ecc9d81 BP |
2246 | } |
2247 | } | |
79eee1eb | 2248 | |
abe529af BP |
2249 | if (error) { |
2250 | return error; | |
2251 | } else if (match) { | |
d6302b0f BP |
2252 | /* This credits the packet to whichever flow happened to match last. |
2253 | * That's weird. Maybe we should do a lookup for the flow that | |
2254 | * actually matches the packet? Who knows. */ | |
5ecc9d81 | 2255 | send_buffered_packet(ofconn, match, fm->buffer_id); |
79eee1eb BP |
2256 | return 0; |
2257 | } else { | |
3052b0c5 | 2258 | return add_flow(ofconn, fm); |
79eee1eb BP |
2259 | } |
2260 | } | |
2261 | ||
2262 | /* Implements OFPFC_MODIFY_STRICT. Returns 0 on success or an OpenFlow error | |
2263 | * code as encoded by ofp_mkerr() on failure. | |
2264 | * | |
2265 | * 'ofconn' is used to retrieve the packet buffer specified in ofm->buffer_id, | |
2266 | * if any. */ | |
2267 | static int | |
3052b0c5 | 2268 | modify_flow_strict(struct ofconn *ofconn, struct flow_mod *fm) |
79eee1eb | 2269 | { |
64ff1d96 | 2270 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
3052b0c5 | 2271 | struct rule *rule = find_flow_strict(p, fm); |
79eee1eb | 2272 | if (rule && !rule_is_hidden(rule)) { |
abe529af BP |
2273 | int error = modify_flow(fm, rule); |
2274 | if (!error) { | |
2275 | error = send_buffered_packet(ofconn, rule, fm->buffer_id); | |
2276 | } | |
2277 | return error; | |
79eee1eb | 2278 | } else { |
3052b0c5 | 2279 | return add_flow(ofconn, fm); |
79eee1eb BP |
2280 | } |
2281 | } | |
2282 | ||
79eee1eb | 2283 | /* Implements core of OFPFC_MODIFY and OFPFC_MODIFY_STRICT where 'rule' has |
abe529af BP |
2284 | * been identified as a flow to be modified, by changing the rule's actions to |
2285 | * match those in 'ofm' (which is followed by 'n_actions' ofp_action[] | |
2286 | * structures). */ | |
064af421 | 2287 | static int |
abe529af | 2288 | modify_flow(const struct flow_mod *fm, struct rule *rule) |
064af421 | 2289 | { |
3052b0c5 | 2290 | size_t actions_len = fm->n_actions * sizeof *rule->actions; |
abe529af | 2291 | int error; |
79eee1eb | 2292 | |
3052b0c5 BP |
2293 | if (fm->n_actions == rule->n_actions |
2294 | && (!fm->n_actions | |
2295 | || !memcmp(fm->actions, rule->actions, actions_len))) { | |
abe529af BP |
2296 | error = 0; |
2297 | } else { | |
2298 | error = rule->ofproto->ofproto_class->rule_modify_actions( | |
2299 | rule, fm->actions, fm->n_actions); | |
2300 | if (!error) { | |
2301 | free(rule->actions); | |
2302 | rule->actions = (fm->n_actions | |
2303 | ? xmemdup(fm->actions, actions_len) | |
2304 | : NULL); | |
2305 | rule->n_actions = fm->n_actions; | |
2306 | } | |
79eee1eb BP |
2307 | } |
2308 | ||
abe529af BP |
2309 | if (!error) { |
2310 | rule->flow_cookie = fm->cookie; | |
2311 | } | |
79eee1eb | 2312 | |
abe529af | 2313 | return error; |
79eee1eb BP |
2314 | } |
2315 | \f | |
2316 | /* OFPFC_DELETE implementation. */ | |
2317 | ||
abe529af | 2318 | static void delete_flow(struct rule *, ovs_be16 out_port); |
79eee1eb BP |
2319 | |
2320 | /* Implements OFPFC_DELETE. */ | |
2321 | static void | |
3052b0c5 | 2322 | delete_flows_loose(struct ofproto *p, const struct flow_mod *fm) |
79eee1eb | 2323 | { |
5ecc9d81 BP |
2324 | struct rule *rule, *next_rule; |
2325 | struct cls_cursor cursor; | |
064af421 | 2326 | |
5ecc9d81 BP |
2327 | cls_cursor_init(&cursor, &p->cls, &fm->cr); |
2328 | CLS_CURSOR_FOR_EACH_SAFE (rule, next_rule, cr, &cursor) { | |
abe529af | 2329 | delete_flow(rule, htons(fm->out_port)); |
5ecc9d81 | 2330 | } |
064af421 BP |
2331 | } |
2332 | ||
79eee1eb BP |
2333 | /* Implements OFPFC_DELETE_STRICT. */ |
2334 | static void | |
3052b0c5 | 2335 | delete_flow_strict(struct ofproto *p, struct flow_mod *fm) |
79eee1eb | 2336 | { |
3052b0c5 | 2337 | struct rule *rule = find_flow_strict(p, fm); |
79eee1eb | 2338 | if (rule) { |
abe529af | 2339 | delete_flow(rule, htons(fm->out_port)); |
79eee1eb BP |
2340 | } |
2341 | } | |
2342 | ||
79eee1eb BP |
2343 | /* Implements core of OFPFC_DELETE and OFPFC_DELETE_STRICT where 'rule' has |
2344 | * been identified as a flow to delete from 'p''s flow table, by deleting the | |
2345 | * flow and sending out a OFPT_FLOW_REMOVED message to any interested | |
2346 | * controller. | |
2347 | * | |
2348 | * Will not delete 'rule' if it is hidden. Will delete 'rule' only if | |
2349 | * 'out_port' is htons(OFPP_NONE) or if 'rule' actually outputs to the | |
2350 | * specified 'out_port'. */ | |
2351 | static void | |
abe529af | 2352 | delete_flow(struct rule *rule, ovs_be16 out_port) |
79eee1eb BP |
2353 | { |
2354 | if (rule_is_hidden(rule)) { | |
2355 | return; | |
2356 | } | |
2357 | ||
2358 | if (out_port != htons(OFPP_NONE) && !rule_has_out_port(rule, out_port)) { | |
2359 | return; | |
2360 | } | |
2361 | ||
abe529af BP |
2362 | ofproto_rule_send_removed(rule, OFPRR_DELETE); |
2363 | ofproto_rule_remove(rule); | |
2364 | } | |
2365 | ||
2366 | static void | |
2367 | ofproto_rule_send_removed(struct rule *rule, uint8_t reason) | |
2368 | { | |
2369 | struct ofputil_flow_removed fr; | |
2370 | ||
2371 | if (rule_is_hidden(rule) || !rule->send_flow_removed) { | |
2372 | return; | |
2373 | } | |
2374 | ||
2375 | fr.rule = rule->cr; | |
2376 | fr.cookie = rule->flow_cookie; | |
2377 | fr.reason = reason; | |
2378 | calc_flow_duration__(rule->created, &fr.duration_sec, &fr.duration_nsec); | |
2379 | fr.idle_timeout = rule->idle_timeout; | |
2380 | rule->ofproto->ofproto_class->rule_get_stats(rule, &fr.packet_count, | |
2381 | &fr.byte_count); | |
2382 | ||
2383 | connmgr_send_flow_removed(rule->ofproto->connmgr, &fr); | |
2384 | } | |
2385 | ||
2386 | /* Sends an OpenFlow "flow removed" message with the given 'reason' (either | |
2387 | * OFPRR_HARD_TIMEOUT or OFPRR_IDLE_TIMEOUT), and then removes 'rule' from its | |
2388 | * ofproto. | |
2389 | * | |
2390 | * ofproto implementation ->run() functions should use this function to expire | |
2391 | * OpenFlow flows. */ | |
2392 | void | |
2393 | ofproto_rule_expire(struct rule *rule, uint8_t reason) | |
2394 | { | |
2395 | assert(reason == OFPRR_HARD_TIMEOUT || reason == OFPRR_IDLE_TIMEOUT); | |
2396 | ofproto_rule_send_removed(rule, reason); | |
2397 | ofproto_rule_remove(rule); | |
79eee1eb BP |
2398 | } |
2399 | \f | |
064af421 | 2400 | static int |
2e4f5fcf | 2401 | handle_flow_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 2402 | { |
64ff1d96 | 2403 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
2e4f5fcf | 2404 | struct flow_mod fm; |
064af421 BP |
2405 | int error; |
2406 | ||
3052b0c5 | 2407 | error = reject_slave_controller(ofconn, "flow_mod"); |
9deba63b BP |
2408 | if (error) { |
2409 | return error; | |
2410 | } | |
3052b0c5 | 2411 | |
f1dd9191 | 2412 | error = ofputil_decode_flow_mod(&fm, oh, ofconn_get_flow_format(ofconn)); |
064af421 BP |
2413 | if (error) { |
2414 | return error; | |
2415 | } | |
2416 | ||
2e4f5fcf BP |
2417 | /* We do not support the emergency flow cache. It will hopefully get |
2418 | * dropped from OpenFlow in the near future. */ | |
2419 | if (fm.flags & OFPFF_EMERG) { | |
49bdc010 JP |
2420 | /* There isn't a good fit for an error code, so just state that the |
2421 | * flow table is full. */ | |
2422 | return ofp_mkerr(OFPET_FLOW_MOD_FAILED, OFPFMFC_ALL_TABLES_FULL); | |
2423 | } | |
2424 | ||
2e4f5fcf | 2425 | switch (fm.command) { |
3052b0c5 | 2426 | case OFPFC_ADD: |
2e4f5fcf | 2427 | return add_flow(ofconn, &fm); |
3052b0c5 BP |
2428 | |
2429 | case OFPFC_MODIFY: | |
2e4f5fcf | 2430 | return modify_flows_loose(ofconn, &fm); |
3052b0c5 BP |
2431 | |
2432 | case OFPFC_MODIFY_STRICT: | |
2e4f5fcf | 2433 | return modify_flow_strict(ofconn, &fm); |
3052b0c5 BP |
2434 | |
2435 | case OFPFC_DELETE: | |
2e4f5fcf | 2436 | delete_flows_loose(p, &fm); |
3052b0c5 BP |
2437 | return 0; |
2438 | ||
2439 | case OFPFC_DELETE_STRICT: | |
2e4f5fcf | 2440 | delete_flow_strict(p, &fm); |
3052b0c5 BP |
2441 | return 0; |
2442 | ||
2443 | default: | |
2444 | return ofp_mkerr(OFPET_FLOW_MOD_FAILED, OFPFMFC_BAD_COMMAND); | |
2445 | } | |
2446 | } | |
2447 | ||
659586ef | 2448 | static int |
d1e2cf21 | 2449 | handle_tun_id_from_cookie(struct ofconn *ofconn, const struct ofp_header *oh) |
659586ef | 2450 | { |
d1e2cf21 BP |
2451 | const struct nxt_tun_id_cookie *msg |
2452 | = (const struct nxt_tun_id_cookie *) oh; | |
f1dd9191 BP |
2453 | enum nx_flow_format flow_format; |
2454 | ||
2455 | flow_format = msg->set ? NXFF_TUN_ID_FROM_COOKIE : NXFF_OPENFLOW10; | |
2456 | ofconn_set_flow_format(ofconn, flow_format); | |
659586ef | 2457 | |
659586ef JG |
2458 | return 0; |
2459 | } | |
2460 | ||
9deba63b | 2461 | static int |
d1e2cf21 | 2462 | handle_role_request(struct ofconn *ofconn, const struct ofp_header *oh) |
9deba63b | 2463 | { |
d1e2cf21 | 2464 | struct nx_role_request *nrr = (struct nx_role_request *) oh; |
9deba63b BP |
2465 | struct nx_role_request *reply; |
2466 | struct ofpbuf *buf; | |
2467 | uint32_t role; | |
2468 | ||
1ce0a5fa | 2469 | if (ofconn_get_type(ofconn) != OFCONN_PRIMARY) { |
19a87e36 | 2470 | VLOG_WARN_RL(&rl, "ignoring role request on service connection"); |
9deba63b BP |
2471 | return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_EPERM); |
2472 | } | |
2473 | ||
2474 | role = ntohl(nrr->role); | |
2475 | if (role != NX_ROLE_OTHER && role != NX_ROLE_MASTER | |
2476 | && role != NX_ROLE_SLAVE) { | |
2477 | VLOG_WARN_RL(&rl, "received request for unknown role %"PRIu32, role); | |
2478 | ||
2479 | /* There's no good error code for this. */ | |
2480 | return ofp_mkerr(OFPET_BAD_REQUEST, -1); | |
2481 | } | |
2482 | ||
1ce0a5fa | 2483 | ofconn_set_role(ofconn, role); |
9deba63b | 2484 | |
d1e2cf21 | 2485 | reply = make_nxmsg_xid(sizeof *reply, NXT_ROLE_REPLY, oh->xid, &buf); |
9deba63b | 2486 | reply->role = htonl(role); |
b0421aa2 | 2487 | ofconn_send_reply(ofconn, buf); |
9deba63b BP |
2488 | |
2489 | return 0; | |
2490 | } | |
2491 | ||
09246b99 | 2492 | static int |
d1e2cf21 | 2493 | handle_nxt_set_flow_format(struct ofconn *ofconn, const struct ofp_header *oh) |
09246b99 | 2494 | { |
d1e2cf21 BP |
2495 | const struct nxt_set_flow_format *msg |
2496 | = (const struct nxt_set_flow_format *) oh; | |
09246b99 | 2497 | uint32_t format; |
09246b99 BP |
2498 | |
2499 | format = ntohl(msg->format); | |
2500 | if (format == NXFF_OPENFLOW10 | |
2501 | || format == NXFF_TUN_ID_FROM_COOKIE | |
2502 | || format == NXFF_NXM) { | |
f1dd9191 | 2503 | ofconn_set_flow_format(ofconn, format); |
09246b99 BP |
2504 | return 0; |
2505 | } else { | |
2506 | return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_EPERM); | |
2507 | } | |
2508 | } | |
2509 | ||
064af421 | 2510 | static int |
d1e2cf21 | 2511 | handle_barrier_request(struct ofconn *ofconn, const struct ofp_header *oh) |
246e61ea JP |
2512 | { |
2513 | struct ofp_header *ob; | |
2514 | struct ofpbuf *buf; | |
2515 | ||
2516 | /* Currently, everything executes synchronously, so we can just | |
2517 | * immediately send the barrier reply. */ | |
2518 | ob = make_openflow_xid(sizeof *ob, OFPT_BARRIER_REPLY, oh->xid, &buf); | |
b0421aa2 | 2519 | ofconn_send_reply(ofconn, buf); |
246e61ea JP |
2520 | return 0; |
2521 | } | |
2522 | ||
d1e2cf21 BP |
2523 | static int |
2524 | handle_openflow__(struct ofconn *ofconn, const struct ofpbuf *msg) | |
064af421 | 2525 | { |
d1e2cf21 BP |
2526 | const struct ofp_header *oh = msg->data; |
2527 | const struct ofputil_msg_type *type; | |
064af421 BP |
2528 | int error; |
2529 | ||
d1e2cf21 BP |
2530 | error = ofputil_decode_msg_type(oh, &type); |
2531 | if (error) { | |
2532 | return error; | |
2533 | } | |
064af421 | 2534 | |
d1e2cf21 BP |
2535 | switch (ofputil_msg_type_code(type)) { |
2536 | /* OpenFlow requests. */ | |
2537 | case OFPUTIL_OFPT_ECHO_REQUEST: | |
2538 | return handle_echo_request(ofconn, oh); | |
064af421 | 2539 | |
d1e2cf21 BP |
2540 | case OFPUTIL_OFPT_FEATURES_REQUEST: |
2541 | return handle_features_request(ofconn, oh); | |
064af421 | 2542 | |
d1e2cf21 BP |
2543 | case OFPUTIL_OFPT_GET_CONFIG_REQUEST: |
2544 | return handle_get_config_request(ofconn, oh); | |
064af421 | 2545 | |
d1e2cf21 BP |
2546 | case OFPUTIL_OFPT_SET_CONFIG: |
2547 | return handle_set_config(ofconn, msg->data); | |
064af421 | 2548 | |
d1e2cf21 BP |
2549 | case OFPUTIL_OFPT_PACKET_OUT: |
2550 | return handle_packet_out(ofconn, oh); | |
064af421 | 2551 | |
d1e2cf21 BP |
2552 | case OFPUTIL_OFPT_PORT_MOD: |
2553 | return handle_port_mod(ofconn, oh); | |
064af421 | 2554 | |
d1e2cf21 | 2555 | case OFPUTIL_OFPT_FLOW_MOD: |
2e4f5fcf | 2556 | return handle_flow_mod(ofconn, oh); |
064af421 | 2557 | |
d1e2cf21 BP |
2558 | case OFPUTIL_OFPT_BARRIER_REQUEST: |
2559 | return handle_barrier_request(ofconn, oh); | |
064af421 | 2560 | |
d1e2cf21 BP |
2561 | /* OpenFlow replies. */ |
2562 | case OFPUTIL_OFPT_ECHO_REPLY: | |
2563 | return 0; | |
246e61ea | 2564 | |
d1e2cf21 | 2565 | /* Nicira extension requests. */ |
d1e2cf21 BP |
2566 | case OFPUTIL_NXT_TUN_ID_FROM_COOKIE: |
2567 | return handle_tun_id_from_cookie(ofconn, oh); | |
2568 | ||
2569 | case OFPUTIL_NXT_ROLE_REQUEST: | |
2570 | return handle_role_request(ofconn, oh); | |
2571 | ||
2572 | case OFPUTIL_NXT_SET_FLOW_FORMAT: | |
2573 | return handle_nxt_set_flow_format(ofconn, oh); | |
2574 | ||
2575 | case OFPUTIL_NXT_FLOW_MOD: | |
2e4f5fcf | 2576 | return handle_flow_mod(ofconn, oh); |
d1e2cf21 BP |
2577 | |
2578 | /* OpenFlow statistics requests. */ | |
2579 | case OFPUTIL_OFPST_DESC_REQUEST: | |
2580 | return handle_desc_stats_request(ofconn, oh); | |
2581 | ||
2582 | case OFPUTIL_OFPST_FLOW_REQUEST: | |
2583 | return handle_flow_stats_request(ofconn, oh); | |
2584 | ||
2585 | case OFPUTIL_OFPST_AGGREGATE_REQUEST: | |
2586 | return handle_aggregate_stats_request(ofconn, oh); | |
2587 | ||
2588 | case OFPUTIL_OFPST_TABLE_REQUEST: | |
2589 | return handle_table_stats_request(ofconn, oh); | |
2590 | ||
2591 | case OFPUTIL_OFPST_PORT_REQUEST: | |
2592 | return handle_port_stats_request(ofconn, oh); | |
2593 | ||
2594 | case OFPUTIL_OFPST_QUEUE_REQUEST: | |
2595 | return handle_queue_stats_request(ofconn, oh); | |
2596 | ||
2597 | /* Nicira extension statistics requests. */ | |
2598 | case OFPUTIL_NXST_FLOW_REQUEST: | |
2599 | return handle_nxst_flow(ofconn, oh); | |
2600 | ||
2601 | case OFPUTIL_NXST_AGGREGATE_REQUEST: | |
2602 | return handle_nxst_aggregate(ofconn, oh); | |
2603 | ||
2604 | case OFPUTIL_INVALID: | |
2605 | case OFPUTIL_OFPT_HELLO: | |
2606 | case OFPUTIL_OFPT_ERROR: | |
2607 | case OFPUTIL_OFPT_FEATURES_REPLY: | |
2608 | case OFPUTIL_OFPT_GET_CONFIG_REPLY: | |
2609 | case OFPUTIL_OFPT_PACKET_IN: | |
2610 | case OFPUTIL_OFPT_FLOW_REMOVED: | |
2611 | case OFPUTIL_OFPT_PORT_STATUS: | |
2612 | case OFPUTIL_OFPT_BARRIER_REPLY: | |
2613 | case OFPUTIL_OFPT_QUEUE_GET_CONFIG_REQUEST: | |
2614 | case OFPUTIL_OFPT_QUEUE_GET_CONFIG_REPLY: | |
2615 | case OFPUTIL_OFPST_DESC_REPLY: | |
2616 | case OFPUTIL_OFPST_FLOW_REPLY: | |
2617 | case OFPUTIL_OFPST_QUEUE_REPLY: | |
2618 | case OFPUTIL_OFPST_PORT_REPLY: | |
2619 | case OFPUTIL_OFPST_TABLE_REPLY: | |
2620 | case OFPUTIL_OFPST_AGGREGATE_REPLY: | |
d1e2cf21 BP |
2621 | case OFPUTIL_NXT_ROLE_REPLY: |
2622 | case OFPUTIL_NXT_FLOW_REMOVED: | |
2623 | case OFPUTIL_NXST_FLOW_REPLY: | |
2624 | case OFPUTIL_NXST_AGGREGATE_REPLY: | |
064af421 BP |
2625 | default: |
2626 | if (VLOG_IS_WARN_ENABLED()) { | |
2627 | char *s = ofp_to_string(oh, ntohs(oh->length), 2); | |
2628 | VLOG_DBG_RL(&rl, "OpenFlow message ignored: %s", s); | |
2629 | free(s); | |
2630 | } | |
d1e2cf21 BP |
2631 | if (oh->type == OFPT_STATS_REQUEST || oh->type == OFPT_STATS_REPLY) { |
2632 | return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_BAD_STAT); | |
2633 | } else { | |
2634 | return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_BAD_TYPE); | |
2635 | } | |
064af421 | 2636 | } |
d1e2cf21 | 2637 | } |
064af421 | 2638 | |
d1e2cf21 BP |
2639 | static void |
2640 | handle_openflow(struct ofconn *ofconn, struct ofpbuf *ofp_msg) | |
2641 | { | |
2642 | int error = handle_openflow__(ofconn, ofp_msg); | |
064af421 BP |
2643 | if (error) { |
2644 | send_error_oh(ofconn, ofp_msg->data, error); | |
2645 | } | |
d1e2cf21 | 2646 | COVERAGE_INC(ofproto_recv_openflow); |
064af421 BP |
2647 | } |
2648 | \f | |
064af421 | 2649 | static uint64_t |
fa60c019 | 2650 | pick_datapath_id(const struct ofproto *ofproto) |
064af421 | 2651 | { |
fa60c019 | 2652 | const struct ofport *port; |
064af421 | 2653 | |
abe529af | 2654 | port = ofproto_get_port(ofproto, OFPP_LOCAL); |
fa60c019 BP |
2655 | if (port) { |
2656 | uint8_t ea[ETH_ADDR_LEN]; | |
2657 | int error; | |
2658 | ||
2659 | error = netdev_get_etheraddr(port->netdev, ea); | |
064af421 BP |
2660 | if (!error) { |
2661 | return eth_addr_to_uint64(ea); | |
2662 | } | |
2663 | VLOG_WARN("could not get MAC address for %s (%s)", | |
fa60c019 | 2664 | netdev_get_name(port->netdev), strerror(error)); |
064af421 | 2665 | } |
fa60c019 | 2666 | return ofproto->fallback_dpid; |
064af421 BP |
2667 | } |
2668 | ||
2669 | static uint64_t | |
2670 | pick_fallback_dpid(void) | |
2671 | { | |
2672 | uint8_t ea[ETH_ADDR_LEN]; | |
70150daf | 2673 | eth_addr_nicira_random(ea); |
064af421 BP |
2674 | return eth_addr_to_uint64(ea); |
2675 | } | |
2676 | \f | |
abe529af BP |
2677 | /* unixctl commands. */ |
2678 | ||
2679 | struct ofproto * | |
2ac6bedd BP |
2680 | ofproto_lookup(const char *name) |
2681 | { | |
2682 | struct ofproto *ofproto; | |
2683 | ||
2684 | HMAP_FOR_EACH_WITH_HASH (ofproto, hmap_node, hash_string(name, 0), | |
2685 | &all_ofprotos) { | |
2686 | if (!strcmp(ofproto->name, name)) { | |
2687 | return ofproto; | |
2688 | } | |
2689 | } | |
2690 | return NULL; | |
2691 | } | |
2692 | ||
7aa697dd BP |
2693 | static void |
2694 | ofproto_unixctl_list(struct unixctl_conn *conn, const char *arg OVS_UNUSED, | |
2695 | void *aux OVS_UNUSED) | |
2696 | { | |
2ac6bedd | 2697 | struct ofproto *ofproto; |
7aa697dd BP |
2698 | struct ds results; |
2699 | ||
2700 | ds_init(&results); | |
2ac6bedd BP |
2701 | HMAP_FOR_EACH (ofproto, hmap_node, &all_ofprotos) { |
2702 | ds_put_format(&results, "%s\n", ofproto->name); | |
7aa697dd BP |
2703 | } |
2704 | unixctl_command_reply(conn, 200, ds_cstr(&results)); | |
2705 | ds_destroy(&results); | |
2706 | } | |
2707 | ||
7aa697dd BP |
2708 | static void |
2709 | ofproto_unixctl_init(void) | |
2710 | { | |
2711 | static bool registered; | |
2712 | if (registered) { | |
2713 | return; | |
2714 | } | |
2715 | registered = true; | |
2716 | ||
2717 | unixctl_command_register("ofproto/list", ofproto_unixctl_list, NULL); | |
7aa697dd | 2718 | } |