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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(odp_overflow); |
d76f09ea BP |
53 | COVERAGE_DEFINE(ofproto_agg_request); |
54 | COVERAGE_DEFINE(ofproto_costly_flags); | |
55 | COVERAGE_DEFINE(ofproto_ctlr_action); | |
d76f09ea BP |
56 | COVERAGE_DEFINE(ofproto_error); |
57 | COVERAGE_DEFINE(ofproto_expiration); | |
58 | COVERAGE_DEFINE(ofproto_expired); | |
59 | COVERAGE_DEFINE(ofproto_flows_req); | |
60 | COVERAGE_DEFINE(ofproto_flush); | |
61 | COVERAGE_DEFINE(ofproto_invalidated); | |
d76f09ea | 62 | COVERAGE_DEFINE(ofproto_no_packet_in); |
d76f09ea BP |
63 | COVERAGE_DEFINE(ofproto_ofp2odp); |
64 | COVERAGE_DEFINE(ofproto_packet_in); | |
65 | COVERAGE_DEFINE(ofproto_packet_out); | |
66 | COVERAGE_DEFINE(ofproto_queue_req); | |
67 | COVERAGE_DEFINE(ofproto_recv_openflow); | |
68 | COVERAGE_DEFINE(ofproto_reinit_ports); | |
d76f09ea BP |
69 | COVERAGE_DEFINE(ofproto_unexpected_rule); |
70 | COVERAGE_DEFINE(ofproto_uninstallable); | |
71 | COVERAGE_DEFINE(ofproto_update_port); | |
72 | ||
abe529af BP |
73 | static void ofport_destroy__(struct ofport *); |
74 | static void ofport_destroy(struct ofport *); | |
064af421 | 75 | |
abe529af BP |
76 | static int rule_create(struct ofproto *, const struct cls_rule *, |
77 | const union ofp_action *, size_t n_actions, | |
78 | uint16_t idle_timeout, uint16_t hard_timeout, | |
79 | ovs_be64 flow_cookie, bool send_flow_removed, | |
80 | struct rule **rulep); | |
064af421 | 81 | |
abe529af BP |
82 | static uint64_t pick_datapath_id(const struct ofproto *); |
83 | static uint64_t pick_fallback_dpid(void); | |
f29152ca | 84 | |
abe529af BP |
85 | static void ofproto_destroy__(struct ofproto *); |
86 | static void ofproto_flush_flows__(struct ofproto *); | |
f29152ca | 87 | |
abe529af BP |
88 | static void ofproto_rule_destroy__(struct rule *); |
89 | static void ofproto_rule_send_removed(struct rule *, uint8_t reason); | |
90 | static void ofproto_rule_remove(struct rule *); | |
7aa697dd | 91 | |
abe529af | 92 | static void handle_openflow(struct ofconn *, struct ofpbuf *); |
ebe482fd | 93 | |
abe529af BP |
94 | static void update_port(struct ofproto *, const char *devname); |
95 | static int init_ports(struct ofproto *); | |
96 | static void reinit_ports(struct ofproto *); | |
f29152ca | 97 | |
abe529af | 98 | static void ofproto_unixctl_init(void); |
f29152ca | 99 | |
abe529af BP |
100 | /* All registered ofproto classes, in probe order. */ |
101 | static const struct ofproto_class **ofproto_classes; | |
102 | static size_t n_ofproto_classes; | |
103 | static size_t allocated_ofproto_classes; | |
f29152ca | 104 | |
abe529af BP |
105 | /* Map from dpif name to struct ofproto, for use by unixctl commands. */ |
106 | static struct hmap all_ofprotos = HMAP_INITIALIZER(&all_ofprotos); | |
f29152ca | 107 | |
abe529af | 108 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); |
064af421 | 109 | |
abe529af BP |
110 | static void |
111 | ofproto_initialize(void) | |
112 | { | |
113 | static bool inited; | |
bcf84111 | 114 | |
abe529af BP |
115 | if (!inited) { |
116 | inited = true; | |
117 | ofproto_class_register(&ofproto_dpif_class); | |
118 | } | |
119 | } | |
064af421 | 120 | |
abe529af BP |
121 | /* 'type' should be a normalized datapath type, as returned by |
122 | * ofproto_normalize_type(). Returns the corresponding ofproto_class | |
123 | * structure, or a null pointer if there is none registered for 'type'. */ | |
124 | static const struct ofproto_class * | |
125 | ofproto_class_find__(const char *type) | |
126 | { | |
127 | size_t i; | |
7aa697dd | 128 | |
abe529af BP |
129 | ofproto_initialize(); |
130 | for (i = 0; i < n_ofproto_classes; i++) { | |
131 | const struct ofproto_class *class = ofproto_classes[i]; | |
132 | struct sset types; | |
133 | bool found; | |
064af421 | 134 | |
abe529af BP |
135 | sset_init(&types); |
136 | class->enumerate_types(&types); | |
137 | found = sset_contains(&types, type); | |
138 | sset_destroy(&types); | |
76ce9432 | 139 | |
abe529af BP |
140 | if (found) { |
141 | return class; | |
142 | } | |
143 | } | |
144 | VLOG_WARN("unknown datapath type %s", type); | |
145 | return NULL; | |
146 | } | |
4a4cdb3b | 147 | |
abe529af BP |
148 | /* Registers a new ofproto class. After successful registration, new ofprotos |
149 | * of that type can be created using ofproto_create(). */ | |
150 | int | |
151 | ofproto_class_register(const struct ofproto_class *new_class) | |
152 | { | |
153 | size_t i; | |
064af421 | 154 | |
abe529af BP |
155 | for (i = 0; i < n_ofproto_classes; i++) { |
156 | if (ofproto_classes[i] == new_class) { | |
157 | return EEXIST; | |
158 | } | |
159 | } | |
064af421 | 160 | |
abe529af BP |
161 | if (n_ofproto_classes >= allocated_ofproto_classes) { |
162 | ofproto_classes = x2nrealloc(ofproto_classes, | |
163 | &allocated_ofproto_classes, | |
164 | sizeof *ofproto_classes); | |
165 | } | |
166 | ofproto_classes[n_ofproto_classes++] = new_class; | |
167 | return 0; | |
168 | } | |
064af421 | 169 | |
abe529af BP |
170 | /* Unregisters a datapath provider. 'type' must have been previously |
171 | * registered and not currently be in use by any ofprotos. After | |
172 | * unregistration new datapaths of that type cannot be opened using | |
173 | * ofproto_create(). */ | |
174 | int | |
175 | ofproto_class_unregister(const struct ofproto_class *class) | |
176 | { | |
177 | size_t i; | |
fa066f01 | 178 | |
abe529af BP |
179 | for (i = 0; i < n_ofproto_classes; i++) { |
180 | if (ofproto_classes[i] == class) { | |
181 | for (i++; i < n_ofproto_classes; i++) { | |
182 | ofproto_classes[i - 1] = ofproto_classes[i]; | |
183 | } | |
184 | n_ofproto_classes--; | |
185 | return 0; | |
186 | } | |
187 | } | |
188 | VLOG_WARN("attempted to unregister an ofproto class that is not " | |
189 | "registered"); | |
190 | return EAFNOSUPPORT; | |
191 | } | |
7aa697dd | 192 | |
f79e673f BP |
193 | /* Clears 'types' and enumerates all registered ofproto types into it. The |
194 | * caller must first initialize the sset. */ | |
195 | void | |
196 | ofproto_enumerate_types(struct sset *types) | |
197 | { | |
abe529af BP |
198 | size_t i; |
199 | ||
200 | ofproto_initialize(); | |
201 | for (i = 0; i < n_ofproto_classes; i++) { | |
202 | ofproto_classes[i]->enumerate_types(types); | |
203 | } | |
f79e673f BP |
204 | } |
205 | ||
206 | /* Returns the fully spelled out name for the given ofproto 'type'. | |
207 | * | |
208 | * Normalized type string can be compared with strcmp(). Unnormalized type | |
209 | * string might be the same even if they have different spellings. */ | |
210 | const char * | |
211 | ofproto_normalize_type(const char *type) | |
212 | { | |
abe529af | 213 | return type && type[0] ? type : "system"; |
f79e673f BP |
214 | } |
215 | ||
216 | /* Clears 'names' and enumerates the names of all known created ofprotos with | |
217 | * the given 'type'. The caller must first initialize the sset. Returns 0 if | |
218 | * successful, otherwise a positive errno value. | |
219 | * | |
220 | * Some kinds of datapaths might not be practically enumerable. This is not | |
221 | * considered an error. */ | |
222 | int | |
223 | ofproto_enumerate_names(const char *type, struct sset *names) | |
224 | { | |
abe529af BP |
225 | const struct ofproto_class *class = ofproto_class_find__(type); |
226 | return class ? class->enumerate_names(type, names) : EAFNOSUPPORT; | |
227 | } | |
f79e673f | 228 | |
064af421 | 229 | int |
abe529af | 230 | ofproto_create(const char *datapath_name, const char *datapath_type, |
064af421 BP |
231 | struct ofproto **ofprotop) |
232 | { | |
abe529af BP |
233 | const struct ofproto_class *class; |
234 | struct ofproto *ofproto; | |
064af421 BP |
235 | int error; |
236 | ||
237 | *ofprotop = NULL; | |
238 | ||
abe529af | 239 | ofproto_initialize(); |
7aa697dd BP |
240 | ofproto_unixctl_init(); |
241 | ||
abe529af BP |
242 | datapath_type = ofproto_normalize_type(datapath_type); |
243 | class = ofproto_class_find__(datapath_type); | |
244 | if (!class) { | |
245 | VLOG_WARN("could not create datapath %s of unknown type %s", | |
246 | datapath_name, datapath_type); | |
247 | return EAFNOSUPPORT; | |
064af421 BP |
248 | } |
249 | ||
abe529af BP |
250 | ofproto = class->alloc(); |
251 | if (!ofproto) { | |
252 | VLOG_ERR("failed to allocate datapath %s of type %s", | |
253 | datapath_name, datapath_type); | |
254 | return ENOMEM; | |
255 | } | |
256 | ||
257 | /* Initialize. */ | |
258 | memset(ofproto, 0, sizeof *ofproto); | |
259 | ofproto->ofproto_class = class; | |
260 | ofproto->name = xstrdup(datapath_name); | |
261 | ofproto->type = xstrdup(datapath_type); | |
262 | hmap_insert(&all_ofprotos, &ofproto->hmap_node, | |
263 | hash_string(ofproto->name, 0)); | |
264 | ofproto->datapath_id = 0; | |
265 | ofproto->fallback_dpid = pick_fallback_dpid(); | |
266 | ofproto->mfr_desc = xstrdup(DEFAULT_MFR_DESC); | |
267 | ofproto->hw_desc = xstrdup(DEFAULT_HW_DESC); | |
268 | ofproto->sw_desc = xstrdup(DEFAULT_SW_DESC); | |
269 | ofproto->serial_desc = xstrdup(DEFAULT_SERIAL_DESC); | |
270 | ofproto->dp_desc = xstrdup(DEFAULT_DP_DESC); | |
271 | ofproto->netdev_monitor = netdev_monitor_create(); | |
272 | hmap_init(&ofproto->ports); | |
273 | shash_init(&ofproto->port_by_name); | |
274 | classifier_init(&ofproto->cls); | |
275 | ofproto->connmgr = connmgr_create(ofproto, datapath_name, datapath_name); | |
276 | ||
277 | error = ofproto->ofproto_class->construct(ofproto); | |
19a87e36 | 278 | if (error) { |
abe529af BP |
279 | VLOG_ERR("failed to open datapath %s: %s", |
280 | datapath_name, strerror(error)); | |
281 | ofproto_destroy__(ofproto); | |
19a87e36 BP |
282 | return error; |
283 | } | |
284 | ||
abe529af BP |
285 | ofproto->datapath_id = pick_datapath_id(ofproto); |
286 | VLOG_INFO("using datapath ID %016"PRIx64, ofproto->datapath_id); | |
287 | init_ports(ofproto); | |
d4cb239a | 288 | |
abe529af | 289 | *ofprotop = ofproto; |
064af421 BP |
290 | return 0; |
291 | } | |
292 | ||
293 | void | |
294 | ofproto_set_datapath_id(struct ofproto *p, uint64_t datapath_id) | |
295 | { | |
296 | uint64_t old_dpid = p->datapath_id; | |
fa60c019 | 297 | p->datapath_id = datapath_id ? datapath_id : pick_datapath_id(p); |
064af421 | 298 | if (p->datapath_id != old_dpid) { |
b123cc3c | 299 | VLOG_INFO("datapath ID changed to %016"PRIx64, p->datapath_id); |
76ce9432 BP |
300 | |
301 | /* Force all active connections to reconnect, since there is no way to | |
302 | * notify a controller that the datapath ID has changed. */ | |
fa05809b | 303 | ofproto_reconnect_controllers(p); |
064af421 BP |
304 | } |
305 | } | |
306 | ||
76ce9432 BP |
307 | void |
308 | ofproto_set_controllers(struct ofproto *p, | |
309 | const struct ofproto_controller *controllers, | |
310 | size_t n_controllers) | |
311 | { | |
19a87e36 | 312 | connmgr_set_controllers(p->connmgr, controllers, n_controllers); |
064af421 BP |
313 | } |
314 | ||
31681a5d JP |
315 | void |
316 | ofproto_set_fail_mode(struct ofproto *p, enum ofproto_fail_mode fail_mode) | |
317 | { | |
19a87e36 | 318 | connmgr_set_fail_mode(p->connmgr, fail_mode); |
31681a5d JP |
319 | } |
320 | ||
fa05809b BP |
321 | /* Drops the connections between 'ofproto' and all of its controllers, forcing |
322 | * them to reconnect. */ | |
323 | void | |
324 | ofproto_reconnect_controllers(struct ofproto *ofproto) | |
325 | { | |
19a87e36 | 326 | connmgr_reconnect(ofproto->connmgr); |
917e50e1 BP |
327 | } |
328 | ||
329 | /* Sets the 'n' TCP port addresses in 'extras' as ones to which 'ofproto''s | |
330 | * in-band control should guarantee access, in the same way that in-band | |
331 | * control guarantees access to OpenFlow controllers. */ | |
332 | void | |
333 | ofproto_set_extra_in_band_remotes(struct ofproto *ofproto, | |
334 | const struct sockaddr_in *extras, size_t n) | |
335 | { | |
19a87e36 | 336 | connmgr_set_extra_in_band_remotes(ofproto->connmgr, extras, n); |
917e50e1 BP |
337 | } |
338 | ||
b1da6250 BP |
339 | /* Sets the OpenFlow queue used by flows set up by in-band control on |
340 | * 'ofproto' to 'queue_id'. If 'queue_id' is negative, then in-band control | |
341 | * flows will use the default queue. */ | |
342 | void | |
343 | ofproto_set_in_band_queue(struct ofproto *ofproto, int queue_id) | |
344 | { | |
19a87e36 | 345 | connmgr_set_in_band_queue(ofproto->connmgr, queue_id); |
b1da6250 BP |
346 | } |
347 | ||
064af421 BP |
348 | void |
349 | ofproto_set_desc(struct ofproto *p, | |
5a719c38 JP |
350 | const char *mfr_desc, const char *hw_desc, |
351 | const char *sw_desc, const char *serial_desc, | |
8abc4ed7 | 352 | const char *dp_desc) |
064af421 | 353 | { |
5a719c38 JP |
354 | struct ofp_desc_stats *ods; |
355 | ||
356 | if (mfr_desc) { | |
357 | if (strlen(mfr_desc) >= sizeof ods->mfr_desc) { | |
358 | VLOG_WARN("truncating mfr_desc, must be less than %zu characters", | |
359 | sizeof ods->mfr_desc); | |
360 | } | |
361 | free(p->mfr_desc); | |
362 | p->mfr_desc = xstrdup(mfr_desc); | |
064af421 | 363 | } |
5a719c38 JP |
364 | if (hw_desc) { |
365 | if (strlen(hw_desc) >= sizeof ods->hw_desc) { | |
366 | VLOG_WARN("truncating hw_desc, must be less than %zu characters", | |
367 | sizeof ods->hw_desc); | |
368 | } | |
369 | free(p->hw_desc); | |
370 | p->hw_desc = xstrdup(hw_desc); | |
064af421 | 371 | } |
5a719c38 JP |
372 | if (sw_desc) { |
373 | if (strlen(sw_desc) >= sizeof ods->sw_desc) { | |
374 | VLOG_WARN("truncating sw_desc, must be less than %zu characters", | |
375 | sizeof ods->sw_desc); | |
376 | } | |
377 | free(p->sw_desc); | |
378 | p->sw_desc = xstrdup(sw_desc); | |
379 | } | |
380 | if (serial_desc) { | |
381 | if (strlen(serial_desc) >= sizeof ods->serial_num) { | |
382 | VLOG_WARN("truncating serial_desc, must be less than %zu " | |
383 | "characters", | |
384 | sizeof ods->serial_num); | |
385 | } | |
386 | free(p->serial_desc); | |
387 | p->serial_desc = xstrdup(serial_desc); | |
064af421 | 388 | } |
8abc4ed7 | 389 | if (dp_desc) { |
5a719c38 JP |
390 | if (strlen(dp_desc) >= sizeof ods->dp_desc) { |
391 | VLOG_WARN("truncating dp_desc, must be less than %zu characters", | |
392 | sizeof ods->dp_desc); | |
393 | } | |
8abc4ed7 JP |
394 | free(p->dp_desc); |
395 | p->dp_desc = xstrdup(dp_desc); | |
396 | } | |
064af421 BP |
397 | } |
398 | ||
064af421 | 399 | int |
81e2083f | 400 | ofproto_set_snoops(struct ofproto *ofproto, const struct sset *snoops) |
064af421 | 401 | { |
19a87e36 | 402 | return connmgr_set_snoops(ofproto->connmgr, snoops); |
064af421 BP |
403 | } |
404 | ||
405 | int | |
0193b2af JG |
406 | ofproto_set_netflow(struct ofproto *ofproto, |
407 | const struct netflow_options *nf_options) | |
064af421 | 408 | { |
abe529af BP |
409 | if (nf_options && sset_is_empty(&nf_options->collectors)) { |
410 | nf_options = NULL; | |
411 | } | |
412 | ||
413 | if (ofproto->ofproto_class->set_netflow) { | |
414 | return ofproto->ofproto_class->set_netflow(ofproto, nf_options); | |
064af421 | 415 | } else { |
abe529af | 416 | return nf_options ? EOPNOTSUPP : 0; |
064af421 BP |
417 | } |
418 | } | |
419 | ||
abe529af | 420 | int |
72b06300 BP |
421 | ofproto_set_sflow(struct ofproto *ofproto, |
422 | const struct ofproto_sflow_options *oso) | |
423 | { | |
abe529af BP |
424 | if (oso && sset_is_empty(&oso->targets)) { |
425 | oso = NULL; | |
426 | } | |
72b06300 | 427 | |
abe529af BP |
428 | if (ofproto->ofproto_class->set_sflow) { |
429 | return ofproto->ofproto_class->set_sflow(ofproto, oso); | |
72b06300 | 430 | } else { |
abe529af | 431 | return oso ? EOPNOTSUPP : 0; |
72b06300 BP |
432 | } |
433 | } | |
e7934396 BP |
434 | \f |
435 | /* Connectivity Fault Management configuration. */ | |
436 | ||
892815f5 | 437 | /* Clears the CFM configuration from 'ofp_port' on 'ofproto'. */ |
e7934396 | 438 | void |
892815f5 | 439 | ofproto_port_clear_cfm(struct ofproto *ofproto, uint16_t ofp_port) |
e7934396 | 440 | { |
abe529af BP |
441 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
442 | if (ofport && ofproto->ofproto_class->set_cfm) { | |
443 | ofproto->ofproto_class->set_cfm(ofport, NULL, NULL, 0); | |
e7934396 BP |
444 | } |
445 | } | |
72b06300 | 446 | |
892815f5 | 447 | /* Configures connectivity fault management on 'ofp_port' in 'ofproto'. Takes |
e7934396 BP |
448 | * basic configuration from the configuration members in 'cfm', and the set of |
449 | * remote maintenance points from the 'n_remote_mps' elements in 'remote_mps'. | |
450 | * Ignores the statistics members of 'cfm'. | |
451 | * | |
892815f5 | 452 | * This function has no effect if 'ofproto' does not have a port 'ofp_port'. */ |
e7934396 | 453 | void |
892815f5 | 454 | ofproto_port_set_cfm(struct ofproto *ofproto, uint16_t ofp_port, |
35c33856 BP |
455 | const struct cfm *cfm, |
456 | const uint16_t *remote_mps, size_t n_remote_mps) | |
e7934396 BP |
457 | { |
458 | struct ofport *ofport; | |
abe529af | 459 | int error; |
e7934396 | 460 | |
abe529af | 461 | ofport = ofproto_get_port(ofproto, ofp_port); |
e7934396 | 462 | if (!ofport) { |
892815f5 BP |
463 | VLOG_WARN("%s: cannot configure CFM on nonexistent port %"PRIu16, |
464 | ofproto->name, ofp_port); | |
e7934396 BP |
465 | return; |
466 | } | |
467 | ||
abe529af BP |
468 | error = (ofproto->ofproto_class->set_cfm |
469 | ? ofproto->ofproto_class->set_cfm(ofport, cfm, | |
470 | remote_mps, n_remote_mps) | |
471 | : EOPNOTSUPP); | |
472 | if (error) { | |
473 | VLOG_WARN("%s: CFM configuration on port %"PRIu16" (%s) failed (%s)", | |
474 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), | |
475 | strerror(error)); | |
e7934396 BP |
476 | } |
477 | } | |
478 | ||
892815f5 | 479 | /* Returns the connectivity fault management object associated with 'ofp_port' |
e7934396 | 480 | * within 'ofproto', or a null pointer if 'ofproto' does not have a port |
892815f5 BP |
481 | * 'ofp_port' or if that port does not have CFM configured. The caller must |
482 | * not modify or destroy the returned object. */ | |
e7934396 | 483 | const struct cfm * |
892815f5 | 484 | ofproto_port_get_cfm(struct ofproto *ofproto, uint16_t ofp_port) |
e7934396 | 485 | { |
abe529af BP |
486 | struct ofport *ofport; |
487 | const struct cfm *cfm; | |
488 | ||
489 | ofport = ofproto_get_port(ofproto, ofp_port); | |
490 | return (ofport | |
491 | && ofproto->ofproto_class->get_cfm | |
492 | && !ofproto->ofproto_class->get_cfm(ofport, &cfm)) ? cfm : NULL; | |
e7934396 | 493 | } |
fa066f01 BP |
494 | |
495 | /* Checks the status of LACP negotiation for 'ofp_port' within ofproto. | |
496 | * Returns 1 if LACP partner information for 'ofp_port' is up-to-date, | |
497 | * 0 if LACP partner information is not current (generally indicating a | |
498 | * connectivity problem), or -1 if LACP is not enabled on 'ofp_port'. */ | |
499 | int | |
500 | ofproto_port_is_lacp_current(struct ofproto *ofproto, uint16_t ofp_port) | |
501 | { | |
abe529af BP |
502 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
503 | return (ofport && ofproto->ofproto_class->port_is_lacp_current | |
504 | ? ofproto->ofproto_class->port_is_lacp_current(ofport) | |
fa066f01 BP |
505 | : -1); |
506 | } | |
e7934396 | 507 | \f |
fa066f01 BP |
508 | /* Bundles. */ |
509 | ||
abe529af BP |
510 | /* Registers a "bundle" associated with client data pointer 'aux' in 'ofproto'. |
511 | * A bundle is the same concept as a Port in OVSDB, that is, it consists of one | |
512 | * or more "slave" devices (Interfaces, in OVSDB) along with a VLAN | |
513 | * configuration plus, if there is more than one slave, a bonding | |
514 | * configuration. | |
515 | * | |
516 | * If 'aux' is already registered then this function updates its configuration | |
517 | * to 's'. Otherwise, this function registers a new bundle. | |
518 | * | |
519 | * Bundles only affect the NXAST_AUTOPATH action and output to the OFPP_NORMAL | |
520 | * port. */ | |
521 | int | |
522 | ofproto_bundle_register(struct ofproto *ofproto, void *aux, | |
523 | const struct ofproto_bundle_settings *s) | |
fa066f01 | 524 | { |
abe529af BP |
525 | return (ofproto->ofproto_class->bundle_set |
526 | ? ofproto->ofproto_class->bundle_set(ofproto, aux, s) | |
527 | : EOPNOTSUPP); | |
fa066f01 BP |
528 | } |
529 | ||
abe529af BP |
530 | /* Unregisters the bundle registered on 'ofproto' with auxiliary data 'aux'. |
531 | * If no such bundle has been registered, this has no effect. */ | |
532 | int | |
533 | ofproto_bundle_unregister(struct ofproto *ofproto, void *aux) | |
fa066f01 | 534 | { |
abe529af | 535 | return ofproto_bundle_register(ofproto, aux, NULL); |
fa066f01 BP |
536 | } |
537 | ||
abe529af BP |
538 | \f |
539 | /* Registers a mirror associated with client data pointer 'aux' in 'ofproto'. | |
540 | * If 'aux' is already registered then this function updates its configuration | |
541 | * to 's'. Otherwise, this function registers a new mirror. | |
542 | * | |
543 | * Mirrors affect only the treatment of packets output to the OFPP_NORMAL | |
544 | * port. */ | |
545 | int | |
546 | ofproto_mirror_register(struct ofproto *ofproto, void *aux, | |
547 | const struct ofproto_mirror_settings *s) | |
fa066f01 | 548 | { |
abe529af BP |
549 | return (ofproto->ofproto_class->mirror_set |
550 | ? ofproto->ofproto_class->mirror_set(ofproto, aux, s) | |
551 | : EOPNOTSUPP); | |
fa066f01 BP |
552 | } |
553 | ||
abe529af BP |
554 | /* Unregisters the mirror registered on 'ofproto' with auxiliary data 'aux'. |
555 | * If no mirror has been registered, this has no effect. */ | |
556 | int | |
557 | ofproto_mirror_unregister(struct ofproto *ofproto, void *aux) | |
fa066f01 | 558 | { |
abe529af | 559 | return ofproto_mirror_register(ofproto, aux, NULL); |
fa066f01 BP |
560 | } |
561 | ||
abe529af BP |
562 | /* Configures the VLANs whose bits are set to 1 in 'flood_vlans' as VLANs on |
563 | * which all packets are flooded, instead of using MAC learning. If | |
564 | * 'flood_vlans' is NULL, then MAC learning applies to all VLANs. | |
565 | * | |
566 | * Flood VLANs affect only the treatment of packets output to the OFPP_NORMAL | |
567 | * port. */ | |
568 | int | |
569 | ofproto_set_flood_vlans(struct ofproto *ofproto, unsigned long *flood_vlans) | |
fa066f01 | 570 | { |
abe529af BP |
571 | return (ofproto->ofproto_class->set_flood_vlans |
572 | ? ofproto->ofproto_class->set_flood_vlans(ofproto, flood_vlans) | |
573 | : EOPNOTSUPP); | |
574 | } | |
fa066f01 | 575 | |
abe529af BP |
576 | /* Returns true if 'aux' is a registered bundle that is currently in use as the |
577 | * output for a mirror. */ | |
578 | bool | |
579 | ofproto_is_mirror_output_bundle(struct ofproto *ofproto, void *aux) | |
580 | { | |
581 | return (ofproto->ofproto_class->is_mirror_output_bundle | |
582 | ? ofproto->ofproto_class->is_mirror_output_bundle(ofproto, aux) | |
583 | : false); | |
584 | } | |
585 | \f | |
586 | bool | |
587 | ofproto_has_snoops(const struct ofproto *ofproto) | |
588 | { | |
589 | return connmgr_has_snoops(ofproto->connmgr); | |
fa066f01 BP |
590 | } |
591 | ||
592 | void | |
abe529af | 593 | ofproto_get_snoops(const struct ofproto *ofproto, struct sset *snoops) |
fa066f01 | 594 | { |
abe529af BP |
595 | connmgr_get_snoops(ofproto->connmgr, snoops); |
596 | } | |
fa066f01 | 597 | |
abe529af BP |
598 | static void |
599 | ofproto_destroy__(struct ofproto *ofproto) | |
600 | { | |
601 | connmgr_destroy(ofproto->connmgr); | |
fa066f01 | 602 | |
abe529af BP |
603 | hmap_remove(&all_ofprotos, &ofproto->hmap_node); |
604 | free(ofproto->name); | |
605 | free(ofproto->mfr_desc); | |
606 | free(ofproto->hw_desc); | |
607 | free(ofproto->sw_desc); | |
608 | free(ofproto->serial_desc); | |
609 | free(ofproto->dp_desc); | |
610 | netdev_monitor_destroy(ofproto->netdev_monitor); | |
611 | hmap_destroy(&ofproto->ports); | |
612 | shash_destroy(&ofproto->port_by_name); | |
613 | classifier_destroy(&ofproto->cls); | |
fa066f01 | 614 | |
abe529af BP |
615 | ofproto->ofproto_class->dealloc(ofproto); |
616 | } | |
fa066f01 | 617 | |
abe529af BP |
618 | void |
619 | ofproto_destroy(struct ofproto *p) | |
620 | { | |
621 | struct ofport *ofport, *next_ofport; | |
fa066f01 | 622 | |
abe529af | 623 | if (!p) { |
fa066f01 BP |
624 | return; |
625 | } | |
626 | ||
abe529af BP |
627 | ofproto_flush_flows__(p); |
628 | HMAP_FOR_EACH_SAFE (ofport, next_ofport, hmap_node, &p->ports) { | |
629 | hmap_remove(&p->ports, &ofport->hmap_node); | |
630 | ofport_destroy(ofport); | |
fa066f01 BP |
631 | } |
632 | ||
abe529af BP |
633 | p->ofproto_class->destruct(p); |
634 | ofproto_destroy__(p); | |
635 | } | |
fa066f01 | 636 | |
abe529af BP |
637 | /* Destroys the datapath with the respective 'name' and 'type'. With the Linux |
638 | * kernel datapath, for example, this destroys the datapath in the kernel, and | |
639 | * with the netdev-based datapath, it tears down the data structures that | |
640 | * represent the datapath. | |
641 | * | |
642 | * The datapath should not be currently open as an ofproto. */ | |
643 | int | |
644 | ofproto_delete(const char *name, const char *type) | |
645 | { | |
646 | const struct ofproto_class *class = ofproto_class_find__(type); | |
647 | return (!class ? EAFNOSUPPORT | |
648 | : !class->del ? EACCES | |
649 | : class->del(type, name)); | |
650 | } | |
fa066f01 | 651 | |
abe529af BP |
652 | static void |
653 | process_port_change(struct ofproto *ofproto, int error, char *devname) | |
654 | { | |
655 | if (error == ENOBUFS) { | |
656 | reinit_ports(ofproto); | |
657 | } else if (!error) { | |
658 | update_port(ofproto, devname); | |
659 | free(devname); | |
fa066f01 BP |
660 | } |
661 | } | |
662 | ||
abe529af BP |
663 | int |
664 | ofproto_run(struct ofproto *p) | |
064af421 | 665 | { |
abe529af BP |
666 | char *devname; |
667 | int error; | |
fa066f01 | 668 | |
abe529af BP |
669 | error = p->ofproto_class->run(p); |
670 | if (error == ENODEV) { | |
671 | /* Someone destroyed the datapath behind our back. The caller | |
672 | * better destroy us and give up, because we're just going to | |
673 | * spin from here on out. */ | |
674 | static struct vlog_rate_limit rl2 = VLOG_RATE_LIMIT_INIT(1, 5); | |
675 | VLOG_ERR_RL(&rl2, "%s: datapath was destroyed externally", | |
676 | p->name); | |
677 | return ENODEV; | |
fa066f01 BP |
678 | } |
679 | ||
5bf0e941 BP |
680 | if (p->ofproto_class->port_poll) { |
681 | while ((error = p->ofproto_class->port_poll(p, &devname)) != EAGAIN) { | |
682 | process_port_change(p, error, devname); | |
683 | } | |
fa066f01 | 684 | } |
abe529af BP |
685 | while ((error = netdev_monitor_poll(p->netdev_monitor, |
686 | &devname)) != EAGAIN) { | |
687 | process_port_change(p, error, devname); | |
fa066f01 BP |
688 | } |
689 | ||
abe529af BP |
690 | connmgr_run(p->connmgr, handle_openflow); |
691 | ||
692 | return 0; | |
064af421 BP |
693 | } |
694 | ||
fa066f01 | 695 | void |
abe529af | 696 | ofproto_wait(struct ofproto *p) |
abdfe474 | 697 | { |
abe529af | 698 | p->ofproto_class->wait(p); |
5bf0e941 BP |
699 | if (p->ofproto_class->port_poll_wait) { |
700 | p->ofproto_class->port_poll_wait(p); | |
701 | } | |
abe529af BP |
702 | netdev_monitor_poll_wait(p->netdev_monitor); |
703 | connmgr_wait(p->connmgr); | |
fa066f01 BP |
704 | } |
705 | ||
abe529af BP |
706 | bool |
707 | ofproto_is_alive(const struct ofproto *p) | |
fa066f01 | 708 | { |
abe529af | 709 | return connmgr_has_controllers(p->connmgr); |
064af421 BP |
710 | } |
711 | ||
bffc0589 | 712 | void |
2cdcb898 | 713 | ofproto_get_ofproto_controller_info(const struct ofproto *ofproto, |
bffc0589 AE |
714 | struct shash *info) |
715 | { | |
19a87e36 | 716 | connmgr_get_controller_info(ofproto->connmgr, info); |
bffc0589 AE |
717 | } |
718 | ||
719 | void | |
720 | ofproto_free_ofproto_controller_info(struct shash *info) | |
721 | { | |
722 | struct shash_node *node; | |
723 | ||
724 | SHASH_FOR_EACH (node, info) { | |
725 | struct ofproto_controller_info *cinfo = node->data; | |
726 | while (cinfo->pairs.n) { | |
727 | free((char *) cinfo->pairs.values[--cinfo->pairs.n]); | |
728 | } | |
729 | free(cinfo); | |
730 | } | |
731 | shash_destroy(info); | |
732 | } | |
733 | ||
b5827b24 BP |
734 | /* Makes a deep copy of 'old' into 'port'. */ |
735 | void | |
736 | ofproto_port_clone(struct ofproto_port *port, const struct ofproto_port *old) | |
737 | { | |
738 | port->name = xstrdup(old->name); | |
739 | port->type = xstrdup(old->type); | |
740 | port->ofp_port = old->ofp_port; | |
741 | } | |
742 | ||
743 | /* Frees memory allocated to members of 'ofproto_port'. | |
744 | * | |
745 | * Do not call this function on an ofproto_port obtained from | |
746 | * ofproto_port_dump_next(): that function retains ownership of the data in the | |
747 | * ofproto_port. */ | |
748 | void | |
749 | ofproto_port_destroy(struct ofproto_port *ofproto_port) | |
750 | { | |
751 | free(ofproto_port->name); | |
752 | free(ofproto_port->type); | |
753 | } | |
754 | ||
b5827b24 BP |
755 | /* Initializes 'dump' to begin dumping the ports in an ofproto. |
756 | * | |
757 | * This function provides no status indication. An error status for the entire | |
758 | * dump operation is provided when it is completed by calling | |
759 | * ofproto_port_dump_done(). | |
760 | */ | |
761 | void | |
762 | ofproto_port_dump_start(struct ofproto_port_dump *dump, | |
763 | const struct ofproto *ofproto) | |
764 | { | |
abe529af BP |
765 | dump->ofproto = ofproto; |
766 | dump->error = ofproto->ofproto_class->port_dump_start(ofproto, | |
767 | &dump->state); | |
b5827b24 BP |
768 | } |
769 | ||
770 | /* Attempts to retrieve another port from 'dump', which must have been created | |
771 | * with ofproto_port_dump_start(). On success, stores a new ofproto_port into | |
772 | * 'port' and returns true. On failure, returns false. | |
773 | * | |
774 | * Failure might indicate an actual error or merely that the last port has been | |
775 | * dumped. An error status for the entire dump operation is provided when it | |
776 | * is completed by calling ofproto_port_dump_done(). | |
777 | * | |
778 | * The ofproto owns the data stored in 'port'. It will remain valid until at | |
779 | * least the next time 'dump' is passed to ofproto_port_dump_next() or | |
780 | * ofproto_port_dump_done(). */ | |
781 | bool | |
782 | ofproto_port_dump_next(struct ofproto_port_dump *dump, | |
783 | struct ofproto_port *port) | |
784 | { | |
abe529af BP |
785 | const struct ofproto *ofproto = dump->ofproto; |
786 | ||
787 | if (dump->error) { | |
788 | return false; | |
789 | } | |
b5827b24 | 790 | |
abe529af BP |
791 | dump->error = ofproto->ofproto_class->port_dump_next(ofproto, dump->state, |
792 | port); | |
793 | if (dump->error) { | |
794 | ofproto->ofproto_class->port_dump_done(ofproto, dump->state); | |
795 | return false; | |
b5827b24 | 796 | } |
abe529af | 797 | return true; |
b5827b24 BP |
798 | } |
799 | ||
800 | /* Completes port table dump operation 'dump', which must have been created | |
801 | * with ofproto_port_dump_start(). Returns 0 if the dump operation was | |
802 | * error-free, otherwise a positive errno value describing the problem. */ | |
803 | int | |
804 | ofproto_port_dump_done(struct ofproto_port_dump *dump) | |
805 | { | |
abe529af BP |
806 | const struct ofproto *ofproto = dump->ofproto; |
807 | if (!dump->error) { | |
808 | dump->error = ofproto->ofproto_class->port_dump_done(ofproto, | |
809 | dump->state); | |
810 | } | |
811 | return dump->error == EOF ? 0 : dump->error; | |
b5827b24 BP |
812 | } |
813 | ||
814 | /* Attempts to add 'netdev' as a port on 'ofproto'. If successful, returns 0 | |
892815f5 | 815 | * and sets '*ofp_portp' to the new port's OpenFlow port number (if 'ofp_portp' |
b5827b24 BP |
816 | * is non-null). On failure, returns a positive errno value and sets |
817 | * '*ofp_portp' to OFPP_NONE (if 'ofp_portp' is non-null). */ | |
818 | int | |
819 | ofproto_port_add(struct ofproto *ofproto, struct netdev *netdev, | |
820 | uint16_t *ofp_portp) | |
821 | { | |
abe529af | 822 | uint16_t ofp_port; |
b5827b24 BP |
823 | int error; |
824 | ||
abe529af | 825 | error = ofproto->ofproto_class->port_add(ofproto, netdev, &ofp_port); |
1fa24dea BP |
826 | if (!error) { |
827 | update_port(ofproto, netdev_get_name(netdev)); | |
828 | } | |
b5827b24 | 829 | if (ofp_portp) { |
abe529af | 830 | *ofp_portp = error ? OFPP_NONE : ofp_port; |
b5827b24 BP |
831 | } |
832 | return error; | |
833 | } | |
834 | ||
835 | /* Looks up a port named 'devname' in 'ofproto'. On success, returns 0 and | |
836 | * initializes '*port' appropriately; on failure, returns a positive errno | |
837 | * value. | |
838 | * | |
abe529af | 839 | * The caller owns the data in 'ofproto_port' and must free it with |
b5827b24 BP |
840 | * ofproto_port_destroy() when it is no longer needed. */ |
841 | int | |
842 | ofproto_port_query_by_name(const struct ofproto *ofproto, const char *devname, | |
843 | struct ofproto_port *port) | |
844 | { | |
b5827b24 BP |
845 | int error; |
846 | ||
abe529af BP |
847 | error = ofproto->ofproto_class->port_query_by_name(ofproto, devname, port); |
848 | if (error) { | |
849 | memset(port, 0, sizeof *port); | |
b5827b24 BP |
850 | } |
851 | return error; | |
852 | } | |
853 | ||
854 | /* Deletes port number 'ofp_port' from the datapath for 'ofproto'. | |
3a6ccc8c BP |
855 | * Returns 0 if successful, otherwise a positive errno. */ |
856 | int | |
b5827b24 | 857 | ofproto_port_del(struct ofproto *ofproto, uint16_t ofp_port) |
3a6ccc8c | 858 | { |
abe529af | 859 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1264ec95 | 860 | const char *name = ofport ? netdev_get_name(ofport->netdev) : "<unknown>"; |
3a6ccc8c BP |
861 | int error; |
862 | ||
abe529af | 863 | error = ofproto->ofproto_class->port_del(ofproto, ofp_port); |
892815f5 | 864 | if (!error && ofport) { |
1264ec95 BP |
865 | /* 'name' is the netdev's name and update_port() is going to close the |
866 | * netdev. Just in case update_port() refers to 'name' after it | |
3a6ccc8c BP |
867 | * destroys 'ofport', make a copy of it around the update_port() |
868 | * call. */ | |
869 | char *devname = xstrdup(name); | |
870 | update_port(ofproto, devname); | |
871 | free(devname); | |
872 | } | |
873 | return error; | |
874 | } | |
875 | ||
fa8b054f BP |
876 | /* Adds a flow to the OpenFlow flow table in 'p' that matches 'cls_rule' and |
877 | * performs the 'n_actions' actions in 'actions'. The new flow will not | |
878 | * timeout. | |
879 | * | |
880 | * If cls_rule->priority is in the range of priorities supported by OpenFlow | |
881 | * (0...65535, inclusive) then the flow will be visible to OpenFlow | |
882 | * controllers; otherwise, it will be hidden. | |
883 | * | |
884 | * The caller retains ownership of 'cls_rule' and 'actions'. */ | |
064af421 | 885 | void |
cf3fad8a | 886 | ofproto_add_flow(struct ofproto *p, const struct cls_rule *cls_rule, |
fa8b054f | 887 | const union ofp_action *actions, size_t n_actions) |
064af421 BP |
888 | { |
889 | struct rule *rule; | |
abe529af | 890 | rule_create(p, cls_rule, actions, n_actions, 0, 0, 0, false, &rule); |
064af421 BP |
891 | } |
892 | ||
893 | void | |
cf3fad8a | 894 | ofproto_delete_flow(struct ofproto *ofproto, const struct cls_rule *target) |
064af421 BP |
895 | { |
896 | struct rule *rule; | |
897 | ||
898 | rule = rule_from_cls_rule(classifier_find_rule_exactly(&ofproto->cls, | |
cf3fad8a | 899 | target)); |
064af421 | 900 | if (rule) { |
abe529af | 901 | ofproto_rule_remove(rule); |
064af421 BP |
902 | } |
903 | } | |
904 | ||
142e1f5c BP |
905 | static void |
906 | ofproto_flush_flows__(struct ofproto *ofproto) | |
064af421 | 907 | { |
5ecc9d81 BP |
908 | struct rule *rule, *next_rule; |
909 | struct cls_cursor cursor; | |
bcf84111 | 910 | |
064af421 | 911 | COVERAGE_INC(ofproto_flush); |
bcf84111 | 912 | |
abe529af BP |
913 | if (ofproto->ofproto_class->flush) { |
914 | ofproto->ofproto_class->flush(ofproto); | |
bcf84111 | 915 | } |
5ecc9d81 BP |
916 | |
917 | cls_cursor_init(&cursor, &ofproto->cls, NULL); | |
918 | CLS_CURSOR_FOR_EACH_SAFE (rule, next_rule, cr, &cursor) { | |
abe529af | 919 | ofproto_rule_remove(rule); |
5ecc9d81 | 920 | } |
142e1f5c BP |
921 | } |
922 | ||
923 | void | |
924 | ofproto_flush_flows(struct ofproto *ofproto) | |
925 | { | |
926 | ofproto_flush_flows__(ofproto); | |
19a87e36 | 927 | connmgr_flushed(ofproto->connmgr); |
064af421 BP |
928 | } |
929 | \f | |
930 | static void | |
931 | reinit_ports(struct ofproto *p) | |
932 | { | |
abe529af | 933 | struct ofproto_port_dump dump; |
b3c01ed3 | 934 | struct sset devnames; |
064af421 | 935 | struct ofport *ofport; |
abe529af | 936 | struct ofproto_port ofproto_port; |
b3c01ed3 | 937 | const char *devname; |
064af421 | 938 | |
898bf89d JP |
939 | COVERAGE_INC(ofproto_reinit_ports); |
940 | ||
b3c01ed3 | 941 | sset_init(&devnames); |
4e8e4213 | 942 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { |
1264ec95 | 943 | sset_add(&devnames, netdev_get_name(ofport->netdev)); |
064af421 | 944 | } |
abe529af BP |
945 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { |
946 | sset_add(&devnames, ofproto_port.name); | |
064af421 | 947 | } |
064af421 | 948 | |
b3c01ed3 BP |
949 | SSET_FOR_EACH (devname, &devnames) { |
950 | update_port(p, devname); | |
064af421 | 951 | } |
b3c01ed3 | 952 | sset_destroy(&devnames); |
064af421 BP |
953 | } |
954 | ||
abe529af BP |
955 | /* Opens and returns a netdev for 'ofproto_port', or a null pointer if the |
956 | * netdev cannot be opened. On success, also fills in 'opp'. */ | |
b33951b8 | 957 | static struct netdev * |
abe529af | 958 | ofport_open(const struct ofproto_port *ofproto_port, struct ofp_phy_port *opp) |
064af421 | 959 | { |
9cfcdadf | 960 | uint32_t curr, advertised, supported, peer; |
149f577a | 961 | struct netdev_options netdev_options; |
064af421 | 962 | enum netdev_flags flags; |
064af421 | 963 | struct netdev *netdev; |
064af421 BP |
964 | int error; |
965 | ||
149f577a | 966 | memset(&netdev_options, 0, sizeof netdev_options); |
abe529af BP |
967 | netdev_options.name = ofproto_port->name; |
968 | netdev_options.type = ofproto_port->type; | |
149f577a | 969 | netdev_options.ethertype = NETDEV_ETH_TYPE_NONE; |
149f577a JG |
970 | |
971 | error = netdev_open(&netdev_options, &netdev); | |
064af421 BP |
972 | if (error) { |
973 | VLOG_WARN_RL(&rl, "ignoring port %s (%"PRIu16") because netdev %s " | |
974 | "cannot be opened (%s)", | |
abe529af BP |
975 | ofproto_port->name, ofproto_port->ofp_port, |
976 | ofproto_port->name, strerror(error)); | |
064af421 BP |
977 | return NULL; |
978 | } | |
979 | ||
064af421 | 980 | netdev_get_flags(netdev, &flags); |
9cfcdadf | 981 | netdev_get_features(netdev, &curr, &advertised, &supported, &peer); |
064af421 | 982 | |
abe529af | 983 | opp->port_no = htons(ofproto_port->ofp_port); |
b33951b8 | 984 | netdev_get_etheraddr(netdev, opp->hw_addr); |
abe529af | 985 | ovs_strzcpy(opp->name, ofproto_port->name, sizeof opp->name); |
9cfcdadf BP |
986 | opp->config = flags & NETDEV_UP ? 0 : htonl(OFPPC_PORT_DOWN); |
987 | opp->state = netdev_get_carrier(netdev) ? 0 : htonl(OFPPS_LINK_DOWN); | |
988 | opp->curr = htonl(curr); | |
989 | opp->advertised = htonl(advertised); | |
990 | opp->supported = htonl(supported); | |
991 | opp->peer = htonl(peer); | |
992 | ||
b33951b8 | 993 | return netdev; |
064af421 BP |
994 | } |
995 | ||
abe529af BP |
996 | /* Returns true if most fields of 'a' and 'b' are equal. Differences in name, |
997 | * port number, and 'config' bits other than OFPPC_PORT_DOWN are | |
998 | * disregarded. */ | |
064af421 | 999 | static bool |
abe529af | 1000 | ofport_equal(const struct ofp_phy_port *a, const struct ofp_phy_port *b) |
064af421 | 1001 | { |
064af421 | 1002 | BUILD_ASSERT_DECL(sizeof *a == 48); /* Detect ofp_phy_port changes. */ |
b33951b8 | 1003 | return (!memcmp(a->hw_addr, b->hw_addr, sizeof a->hw_addr) |
064af421 | 1004 | && a->state == b->state |
9cfcdadf | 1005 | && !((a->config ^ b->config) & htonl(OFPPC_PORT_DOWN)) |
064af421 BP |
1006 | && a->curr == b->curr |
1007 | && a->advertised == b->advertised | |
1008 | && a->supported == b->supported | |
1009 | && a->peer == b->peer); | |
1010 | } | |
1011 | ||
b33951b8 BP |
1012 | /* Adds an ofport to 'p' initialized based on the given 'netdev' and 'opp'. |
1013 | * The caller must ensure that 'p' does not have a conflicting ofport (that is, | |
1014 | * one with the same name or port number). */ | |
064af421 | 1015 | static void |
b33951b8 BP |
1016 | ofport_install(struct ofproto *p, |
1017 | struct netdev *netdev, const struct ofp_phy_port *opp) | |
064af421 | 1018 | { |
b33951b8 BP |
1019 | const char *netdev_name = netdev_get_name(netdev); |
1020 | struct ofport *ofport; | |
abe529af | 1021 | int error; |
72b06300 | 1022 | |
b33951b8 | 1023 | /* Create ofport. */ |
abe529af BP |
1024 | ofport = p->ofproto_class->port_alloc(); |
1025 | if (!ofport) { | |
1026 | error = ENOMEM; | |
1027 | goto error; | |
1028 | } | |
0f7d71a5 | 1029 | ofport->ofproto = p; |
b33951b8 BP |
1030 | ofport->netdev = netdev; |
1031 | ofport->opp = *opp; | |
abe529af | 1032 | ofport->ofp_port = ntohs(opp->port_no); |
b33951b8 BP |
1033 | |
1034 | /* Add port to 'p'. */ | |
e9e28be3 | 1035 | netdev_monitor_add(p->netdev_monitor, ofport->netdev); |
abe529af | 1036 | hmap_insert(&p->ports, &ofport->hmap_node, hash_int(ofport->ofp_port, 0)); |
72b06300 | 1037 | shash_add(&p->port_by_name, netdev_name, ofport); |
abe529af BP |
1038 | |
1039 | /* Let the ofproto_class initialize its private data. */ | |
1040 | error = p->ofproto_class->port_construct(ofport); | |
1041 | if (error) { | |
1042 | goto error; | |
1043 | } | |
1044 | connmgr_send_port_status(p->connmgr, opp, OFPPR_ADD); | |
1045 | return; | |
1046 | ||
1047 | error: | |
1048 | VLOG_WARN_RL(&rl, "%s: could not add port %s (%s)", | |
1049 | p->name, netdev_name, strerror(error)); | |
1050 | if (ofport) { | |
1051 | ofport_destroy__(ofport); | |
1052 | } else { | |
1053 | netdev_close(netdev); | |
72b06300 | 1054 | } |
064af421 BP |
1055 | } |
1056 | ||
b33951b8 | 1057 | /* Removes 'ofport' from 'p' and destroys it. */ |
064af421 | 1058 | static void |
0f7d71a5 | 1059 | ofport_remove(struct ofport *ofport) |
064af421 | 1060 | { |
fa066f01 BP |
1061 | connmgr_send_port_status(ofport->ofproto->connmgr, &ofport->opp, |
1062 | OFPPR_DELETE); | |
abe529af | 1063 | ofport_destroy(ofport); |
b33951b8 BP |
1064 | } |
1065 | ||
1066 | /* If 'ofproto' contains an ofport named 'name', removes it from 'ofproto' and | |
1067 | * destroys it. */ | |
1068 | static void | |
1069 | ofport_remove_with_name(struct ofproto *ofproto, const char *name) | |
1070 | { | |
1071 | struct ofport *port = shash_find_data(&ofproto->port_by_name, name); | |
1072 | if (port) { | |
0f7d71a5 | 1073 | ofport_remove(port); |
b33951b8 BP |
1074 | } |
1075 | } | |
1076 | ||
1077 | /* Updates 'port' within 'ofproto' with the new 'netdev' and 'opp'. | |
1078 | * | |
1079 | * Does not handle a name or port number change. The caller must implement | |
1080 | * such a change as a delete followed by an add. */ | |
1081 | static void | |
abe529af | 1082 | ofport_modified(struct ofport *port, struct ofp_phy_port *opp) |
b33951b8 BP |
1083 | { |
1084 | memcpy(port->opp.hw_addr, opp->hw_addr, ETH_ADDR_LEN); | |
9cfcdadf BP |
1085 | port->opp.config = ((port->opp.config & ~htonl(OFPPC_PORT_DOWN)) |
1086 | | (opp->config & htonl(OFPPC_PORT_DOWN))); | |
b33951b8 BP |
1087 | port->opp.state = opp->state; |
1088 | port->opp.curr = opp->curr; | |
1089 | port->opp.advertised = opp->advertised; | |
1090 | port->opp.supported = opp->supported; | |
1091 | port->opp.peer = opp->peer; | |
1092 | ||
abe529af | 1093 | connmgr_send_port_status(port->ofproto->connmgr, &port->opp, OFPPR_MODIFY); |
064af421 BP |
1094 | } |
1095 | ||
abe529af BP |
1096 | void |
1097 | ofproto_port_unregister(struct ofproto *ofproto, uint16_t ofp_port) | |
e7934396 | 1098 | { |
abe529af BP |
1099 | struct ofport *port = ofproto_get_port(ofproto, ofp_port); |
1100 | if (port) { | |
1101 | if (port->ofproto->ofproto_class->set_cfm) { | |
1102 | port->ofproto->ofproto_class->set_cfm(port, NULL, NULL, 0); | |
1103 | } | |
1104 | if (port->ofproto->ofproto_class->bundle_remove) { | |
1105 | port->ofproto->ofproto_class->bundle_remove(port); | |
e7934396 BP |
1106 | } |
1107 | } | |
1108 | } | |
1109 | ||
1110 | static void | |
abe529af | 1111 | ofport_destroy__(struct ofport *port) |
064af421 | 1112 | { |
abe529af BP |
1113 | struct ofproto *ofproto = port->ofproto; |
1114 | const char *name = netdev_get_name(port->netdev); | |
fa066f01 | 1115 | |
abe529af BP |
1116 | netdev_monitor_remove(ofproto->netdev_monitor, port->netdev); |
1117 | hmap_remove(&ofproto->ports, &port->hmap_node); | |
1118 | shash_delete(&ofproto->port_by_name, | |
1119 | shash_find(&ofproto->port_by_name, name)); | |
fa066f01 | 1120 | |
abe529af BP |
1121 | netdev_close(port->netdev); |
1122 | ofproto->ofproto_class->port_dealloc(port); | |
fa066f01 BP |
1123 | } |
1124 | ||
1125 | static void | |
abe529af | 1126 | ofport_destroy(struct ofport *port) |
fa066f01 BP |
1127 | { |
1128 | if (port) { | |
abe529af BP |
1129 | port->ofproto->ofproto_class->port_destruct(port); |
1130 | ofport_destroy__(port); | |
1131 | } | |
064af421 BP |
1132 | } |
1133 | ||
abe529af BP |
1134 | struct ofport * |
1135 | ofproto_get_port(const struct ofproto *ofproto, uint16_t ofp_port) | |
ca0f572c BP |
1136 | { |
1137 | struct ofport *port; | |
1138 | ||
4e8e4213 | 1139 | HMAP_FOR_EACH_IN_BUCKET (port, hmap_node, |
abe529af BP |
1140 | hash_int(ofp_port, 0), &ofproto->ports) { |
1141 | if (port->ofp_port == ofp_port) { | |
ca0f572c BP |
1142 | return port; |
1143 | } | |
1144 | } | |
1145 | return NULL; | |
1146 | } | |
1147 | ||
064af421 | 1148 | static void |
b33951b8 | 1149 | update_port(struct ofproto *ofproto, const char *name) |
064af421 | 1150 | { |
abe529af | 1151 | struct ofproto_port ofproto_port; |
b33951b8 BP |
1152 | struct ofp_phy_port opp; |
1153 | struct netdev *netdev; | |
1154 | struct ofport *port; | |
064af421 BP |
1155 | |
1156 | COVERAGE_INC(ofproto_update_port); | |
c874dc6d | 1157 | |
b33951b8 | 1158 | /* Fetch 'name''s location and properties from the datapath. */ |
abe529af BP |
1159 | netdev = (!ofproto_port_query_by_name(ofproto, name, &ofproto_port) |
1160 | ? ofport_open(&ofproto_port, &opp) | |
b33951b8 BP |
1161 | : NULL); |
1162 | if (netdev) { | |
abe529af | 1163 | port = ofproto_get_port(ofproto, ofproto_port.ofp_port); |
b33951b8 BP |
1164 | if (port && !strcmp(netdev_get_name(port->netdev), name)) { |
1165 | /* 'name' hasn't changed location. Any properties changed? */ | |
1166 | if (!ofport_equal(&port->opp, &opp)) { | |
abe529af BP |
1167 | ofport_modified(port, &opp); |
1168 | } | |
1169 | ||
1170 | /* Install the newly opened netdev in case it has changed. */ | |
1171 | netdev_monitor_remove(ofproto->netdev_monitor, port->netdev); | |
1172 | netdev_monitor_add(ofproto->netdev_monitor, netdev); | |
1173 | ||
1174 | netdev_close(port->netdev); | |
1175 | port->netdev = netdev; | |
1176 | ||
1177 | if (port->ofproto->ofproto_class->port_modified) { | |
1178 | port->ofproto->ofproto_class->port_modified(port); | |
b33951b8 BP |
1179 | } |
1180 | } else { | |
1181 | /* If 'port' is nonnull then its name differs from 'name' and thus | |
1182 | * we should delete it. If we think there's a port named 'name' | |
1183 | * then its port number must be wrong now so delete it too. */ | |
1184 | if (port) { | |
0f7d71a5 | 1185 | ofport_remove(port); |
b33951b8 BP |
1186 | } |
1187 | ofport_remove_with_name(ofproto, name); | |
1188 | ofport_install(ofproto, netdev, &opp); | |
c874dc6d | 1189 | } |
b33951b8 BP |
1190 | } else { |
1191 | /* Any port named 'name' is gone now. */ | |
1192 | ofport_remove_with_name(ofproto, name); | |
c874dc6d | 1193 | } |
abe529af | 1194 | ofproto_port_destroy(&ofproto_port); |
064af421 BP |
1195 | } |
1196 | ||
1197 | static int | |
1198 | init_ports(struct ofproto *p) | |
1199 | { | |
abe529af BP |
1200 | struct ofproto_port_dump dump; |
1201 | struct ofproto_port ofproto_port; | |
1202 | ||
1203 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { | |
1204 | uint16_t ofp_port = ofproto_port.ofp_port; | |
1205 | if (ofproto_get_port(p, ofp_port)) { | |
1206 | VLOG_WARN_RL(&rl, "ignoring duplicate port %"PRIu16" in datapath", | |
1207 | ofp_port); | |
1208 | } else if (shash_find(&p->port_by_name, ofproto_port.name)) { | |
1209 | VLOG_WARN_RL(&rl, "ignoring duplicate device %s in datapath", | |
1210 | ofproto_port.name); | |
1211 | } else { | |
b33951b8 BP |
1212 | struct ofp_phy_port opp; |
1213 | struct netdev *netdev; | |
1214 | ||
abe529af | 1215 | netdev = ofport_open(&ofproto_port, &opp); |
b33951b8 BP |
1216 | if (netdev) { |
1217 | ofport_install(p, netdev, &opp); | |
064af421 BP |
1218 | } |
1219 | } | |
1220 | } | |
b0ec0f27 | 1221 | |
064af421 BP |
1222 | return 0; |
1223 | } | |
1224 | \f | |
abe529af BP |
1225 | /* Creates a new rule initialized as specified, inserts it into 'ofproto''s |
1226 | * flow table, and stores the new rule into '*rulep'. Returns 0 on success, | |
1227 | * otherwise a positive errno value or OpenFlow error code. */ | |
1228 | static int | |
1229 | rule_create(struct ofproto *ofproto, const struct cls_rule *cls_rule, | |
064af421 | 1230 | const union ofp_action *actions, size_t n_actions, |
ca069229 | 1231 | uint16_t idle_timeout, uint16_t hard_timeout, |
abe529af BP |
1232 | ovs_be64 flow_cookie, bool send_flow_removed, |
1233 | struct rule **rulep) | |
064af421 | 1234 | { |
abe529af BP |
1235 | struct rule *rule; |
1236 | int error; | |
1237 | ||
1238 | rule = ofproto->ofproto_class->rule_alloc(); | |
1239 | if (!rule) { | |
1240 | error = ENOMEM; | |
1241 | goto error; | |
1242 | } | |
1243 | ||
1244 | rule->ofproto = ofproto; | |
bcf84111 | 1245 | rule->cr = *cls_rule; |
abe529af BP |
1246 | rule->flow_cookie = flow_cookie; |
1247 | rule->created = time_msec(); | |
064af421 BP |
1248 | rule->idle_timeout = idle_timeout; |
1249 | rule->hard_timeout = hard_timeout; | |
ca069229 | 1250 | rule->send_flow_removed = send_flow_removed; |
3dffcf07 | 1251 | if (n_actions > 0) { |
3dffcf07 | 1252 | rule->actions = xmemdup(actions, n_actions * sizeof *actions); |
abe529af BP |
1253 | } else { |
1254 | rule->actions = NULL; | |
3dffcf07 | 1255 | } |
abe529af | 1256 | rule->n_actions = n_actions; |
0193b2af | 1257 | |
abe529af BP |
1258 | error = ofproto->ofproto_class->rule_construct(rule); |
1259 | if (error) { | |
1260 | ofproto_rule_destroy__(rule); | |
1261 | goto error; | |
1262 | } | |
064af421 | 1263 | |
abe529af BP |
1264 | *rulep = rule; |
1265 | return 0; | |
1266 | ||
1267 | error: | |
1268 | VLOG_WARN_RL(&rl, "%s: failed to create rule (%s)", | |
1269 | ofproto->name, strerror(error)); | |
1270 | *rulep = NULL; | |
1271 | return error; | |
064af421 BP |
1272 | } |
1273 | ||
1274 | static void | |
abe529af | 1275 | ofproto_rule_destroy__(struct rule *rule) |
064af421 BP |
1276 | { |
1277 | free(rule->actions); | |
abe529af | 1278 | rule->ofproto->ofproto_class->rule_dealloc(rule); |
064af421 BP |
1279 | } |
1280 | ||
bcf84111 BP |
1281 | /* Destroys 'rule' and iterates through all of its facets and revalidates them, |
1282 | * destroying any that no longer has a rule (which is probably all of them). | |
064af421 | 1283 | * |
bcf84111 | 1284 | * The caller must have already removed 'rule' from the classifier. */ |
abe529af BP |
1285 | void |
1286 | ofproto_rule_destroy(struct rule *rule) | |
064af421 | 1287 | { |
abe529af BP |
1288 | rule->ofproto->ofproto_class->rule_destruct(rule); |
1289 | ofproto_rule_destroy__(rule); | |
064af421 BP |
1290 | } |
1291 | ||
bcf84111 BP |
1292 | /* Returns true if 'rule' has an OpenFlow OFPAT_OUTPUT or OFPAT_ENQUEUE action |
1293 | * that outputs to 'out_port' (output to OFPP_FLOOD and OFPP_ALL doesn't | |
1294 | * count). */ | |
064af421 | 1295 | static bool |
8054fc48 | 1296 | rule_has_out_port(const struct rule *rule, ovs_be16 out_port) |
064af421 BP |
1297 | { |
1298 | const union ofp_action *oa; | |
1299 | struct actions_iterator i; | |
1300 | ||
1301 | if (out_port == htons(OFPP_NONE)) { | |
1302 | return true; | |
1303 | } | |
1304 | for (oa = actions_first(&i, rule->actions, rule->n_actions); oa; | |
1305 | oa = actions_next(&i)) { | |
c1c9c9c4 | 1306 | if (action_outputs_to_port(oa, out_port)) { |
064af421 BP |
1307 | return true; |
1308 | } | |
1309 | } | |
1310 | return false; | |
1311 | } | |
1312 | ||
abe529af BP |
1313 | struct rule * |
1314 | ofproto_rule_lookup(struct ofproto *ofproto, const struct flow *flow) | |
064af421 | 1315 | { |
abe529af | 1316 | return rule_from_cls_rule(classifier_lookup(&ofproto->cls, flow)); |
bcf84111 BP |
1317 | } |
1318 | ||
1319 | /* Executes the actions indicated by 'rule' on 'packet' and credits 'rule''s | |
1320 | * statistics (or the statistics for one of its facets) appropriately. | |
1321 | * 'packet' must have at least sizeof(struct ofp_packet_in) bytes of headroom. | |
1322 | * | |
1323 | * 'packet' doesn't necessarily have to match 'rule'. 'rule' will be credited | |
1324 | * with statistics for 'packet' either way. | |
1325 | * | |
1326 | * Takes ownership of 'packet'. */ | |
5bf0e941 | 1327 | static int |
abe529af | 1328 | rule_execute(struct rule *rule, uint16_t in_port, struct ofpbuf *packet) |
bcf84111 | 1329 | { |
bcf84111 | 1330 | struct flow flow; |
cdee00fd | 1331 | |
abe529af | 1332 | assert(ofpbuf_headroom(packet) >= sizeof(struct ofp_packet_in)); |
fa066f01 | 1333 | |
abe529af | 1334 | flow_extract(packet, 0, in_port, &flow); |
5bf0e941 | 1335 | return rule->ofproto->ofproto_class->rule_execute(rule, &flow, packet); |
abe529af | 1336 | } |
fa066f01 | 1337 | |
abe529af BP |
1338 | /* Remove 'rule' from 'ofproto' and free up the associated memory: |
1339 | * | |
1340 | * - Removes 'rule' from the classifier. | |
1341 | * | |
1342 | * - If 'rule' has facets, revalidates them (and possibly uninstalls and | |
1343 | * destroys them), via rule_destroy(). | |
1344 | */ | |
1345 | void | |
1346 | ofproto_rule_remove(struct rule *rule) | |
1347 | { | |
1348 | rule->ofproto->ofproto_class->rule_remove(rule); | |
1349 | ofproto_rule_destroy(rule); | |
1350 | } | |
fa066f01 | 1351 | |
abe529af BP |
1352 | /* Returns true if 'rule' should be hidden from the controller. |
1353 | * | |
1354 | * Rules with priority higher than UINT16_MAX are set up by ofproto itself | |
1355 | * (e.g. by in-band control) and are intentionally hidden from the | |
1356 | * controller. */ | |
1357 | static bool | |
1358 | rule_is_hidden(const struct rule *rule) | |
1359 | { | |
1360 | return rule->cr.priority > UINT16_MAX; | |
fa066f01 BP |
1361 | } |
1362 | \f | |
064af421 BP |
1363 | static void |
1364 | send_error_oh(const struct ofconn *ofconn, const struct ofp_header *oh, | |
1365 | int error) | |
1366 | { | |
dc4762ed | 1367 | struct ofpbuf *buf = ofputil_encode_error_msg(error, oh); |
26c112c2 BP |
1368 | if (buf) { |
1369 | COVERAGE_INC(ofproto_error); | |
b0421aa2 | 1370 | ofconn_send_reply(ofconn, buf); |
26c112c2 | 1371 | } |
064af421 BP |
1372 | } |
1373 | ||
064af421 | 1374 | static int |
d1e2cf21 | 1375 | handle_echo_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 1376 | { |
b0421aa2 | 1377 | ofconn_send_reply(ofconn, make_echo_reply(oh)); |
064af421 BP |
1378 | return 0; |
1379 | } | |
1380 | ||
1381 | static int | |
d1e2cf21 | 1382 | handle_features_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 1383 | { |
64ff1d96 | 1384 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
064af421 BP |
1385 | struct ofp_switch_features *osf; |
1386 | struct ofpbuf *buf; | |
064af421 BP |
1387 | struct ofport *port; |
1388 | ||
1389 | osf = make_openflow_xid(sizeof *osf, OFPT_FEATURES_REPLY, oh->xid, &buf); | |
64ff1d96 | 1390 | osf->datapath_id = htonll(ofproto->datapath_id); |
064af421 BP |
1391 | osf->n_buffers = htonl(pktbuf_capacity()); |
1392 | osf->n_tables = 2; | |
1393 | osf->capabilities = htonl(OFPC_FLOW_STATS | OFPC_TABLE_STATS | | |
0254ae23 | 1394 | OFPC_PORT_STATS | OFPC_ARP_MATCH_IP); |
064af421 BP |
1395 | osf->actions = htonl((1u << OFPAT_OUTPUT) | |
1396 | (1u << OFPAT_SET_VLAN_VID) | | |
1397 | (1u << OFPAT_SET_VLAN_PCP) | | |
1398 | (1u << OFPAT_STRIP_VLAN) | | |
1399 | (1u << OFPAT_SET_DL_SRC) | | |
1400 | (1u << OFPAT_SET_DL_DST) | | |
1401 | (1u << OFPAT_SET_NW_SRC) | | |
1402 | (1u << OFPAT_SET_NW_DST) | | |
959a2ecd | 1403 | (1u << OFPAT_SET_NW_TOS) | |
064af421 | 1404 | (1u << OFPAT_SET_TP_SRC) | |
c1c9c9c4 BP |
1405 | (1u << OFPAT_SET_TP_DST) | |
1406 | (1u << OFPAT_ENQUEUE)); | |
064af421 | 1407 | |
64ff1d96 | 1408 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
9cfcdadf | 1409 | ofpbuf_put(buf, &port->opp, sizeof port->opp); |
064af421 BP |
1410 | } |
1411 | ||
b0421aa2 | 1412 | ofconn_send_reply(ofconn, buf); |
064af421 BP |
1413 | return 0; |
1414 | } | |
1415 | ||
1416 | static int | |
d1e2cf21 | 1417 | handle_get_config_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 1418 | { |
64ff1d96 | 1419 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
064af421 BP |
1420 | struct ofpbuf *buf; |
1421 | struct ofp_switch_config *osc; | |
1422 | uint16_t flags; | |
1423 | bool drop_frags; | |
1424 | ||
1425 | /* Figure out flags. */ | |
abe529af | 1426 | drop_frags = ofproto->ofproto_class->get_drop_frags(ofproto); |
064af421 | 1427 | flags = drop_frags ? OFPC_FRAG_DROP : OFPC_FRAG_NORMAL; |
064af421 BP |
1428 | |
1429 | /* Send reply. */ | |
1430 | osc = make_openflow_xid(sizeof *osc, OFPT_GET_CONFIG_REPLY, oh->xid, &buf); | |
1431 | osc->flags = htons(flags); | |
810605a2 | 1432 | osc->miss_send_len = htons(ofconn_get_miss_send_len(ofconn)); |
b0421aa2 | 1433 | ofconn_send_reply(ofconn, buf); |
064af421 BP |
1434 | |
1435 | return 0; | |
1436 | } | |
1437 | ||
1438 | static int | |
d1e2cf21 | 1439 | handle_set_config(struct ofconn *ofconn, const struct ofp_switch_config *osc) |
064af421 | 1440 | { |
64ff1d96 | 1441 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
d1e2cf21 | 1442 | uint16_t flags = ntohs(osc->flags); |
064af421 | 1443 | |
1ce0a5fa BP |
1444 | if (ofconn_get_type(ofconn) == OFCONN_PRIMARY |
1445 | && ofconn_get_role(ofconn) != NX_ROLE_SLAVE) { | |
064af421 BP |
1446 | switch (flags & OFPC_FRAG_MASK) { |
1447 | case OFPC_FRAG_NORMAL: | |
abe529af | 1448 | ofproto->ofproto_class->set_drop_frags(ofproto, false); |
064af421 BP |
1449 | break; |
1450 | case OFPC_FRAG_DROP: | |
abe529af | 1451 | ofproto->ofproto_class->set_drop_frags(ofproto, true); |
064af421 BP |
1452 | break; |
1453 | default: | |
1454 | VLOG_WARN_RL(&rl, "requested bad fragment mode (flags=%"PRIx16")", | |
1455 | osc->flags); | |
1456 | break; | |
1457 | } | |
1458 | } | |
1459 | ||
810605a2 | 1460 | ofconn_set_miss_send_len(ofconn, ntohs(osc->miss_send_len)); |
064af421 BP |
1461 | |
1462 | return 0; | |
1463 | } | |
1464 | ||
9deba63b BP |
1465 | /* Checks whether 'ofconn' is a slave controller. If so, returns an OpenFlow |
1466 | * error message code (composed with ofp_mkerr()) for the caller to propagate | |
1467 | * upward. Otherwise, returns 0. | |
1468 | * | |
2228b50d | 1469 | * The log message mentions 'msg_type'. */ |
9deba63b | 1470 | static int |
2228b50d | 1471 | reject_slave_controller(struct ofconn *ofconn, const const char *msg_type) |
9deba63b | 1472 | { |
1ce0a5fa BP |
1473 | if (ofconn_get_type(ofconn) == OFCONN_PRIMARY |
1474 | && ofconn_get_role(ofconn) == NX_ROLE_SLAVE) { | |
9deba63b | 1475 | static struct vlog_rate_limit perm_rl = VLOG_RATE_LIMIT_INIT(1, 5); |
9deba63b | 1476 | VLOG_WARN_RL(&perm_rl, "rejecting %s message from slave controller", |
2228b50d | 1477 | msg_type); |
9deba63b BP |
1478 | |
1479 | return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_EPERM); | |
1480 | } else { | |
1481 | return 0; | |
1482 | } | |
1483 | } | |
1484 | ||
064af421 | 1485 | static int |
d1e2cf21 | 1486 | handle_packet_out(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 1487 | { |
64ff1d96 | 1488 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 BP |
1489 | struct ofp_packet_out *opo; |
1490 | struct ofpbuf payload, *buffer; | |
ac51afaf | 1491 | union ofp_action *ofp_actions; |
ac51afaf | 1492 | struct ofpbuf request; |
ae412e7d | 1493 | struct flow flow; |
ac51afaf | 1494 | size_t n_ofp_actions; |
064af421 | 1495 | uint16_t in_port; |
064af421 BP |
1496 | int error; |
1497 | ||
ac51afaf BP |
1498 | COVERAGE_INC(ofproto_packet_out); |
1499 | ||
2228b50d | 1500 | error = reject_slave_controller(ofconn, "OFPT_PACKET_OUT"); |
9deba63b BP |
1501 | if (error) { |
1502 | return error; | |
1503 | } | |
1504 | ||
ac51afaf | 1505 | /* Get ofp_packet_out. */ |
0bc9407d | 1506 | ofpbuf_use_const(&request, oh, ntohs(oh->length)); |
bbc32a88 | 1507 | opo = ofpbuf_pull(&request, offsetof(struct ofp_packet_out, actions)); |
ac51afaf BP |
1508 | |
1509 | /* Get actions. */ | |
1510 | error = ofputil_pull_actions(&request, ntohs(opo->actions_len), | |
1511 | &ofp_actions, &n_ofp_actions); | |
064af421 BP |
1512 | if (error) { |
1513 | return error; | |
1514 | } | |
064af421 | 1515 | |
ac51afaf | 1516 | /* Get payload. */ |
064af421 | 1517 | if (opo->buffer_id != htonl(UINT32_MAX)) { |
10d0a1d2 BP |
1518 | error = ofconn_pktbuf_retrieve(ofconn, ntohl(opo->buffer_id), |
1519 | &buffer, &in_port); | |
7778bd15 | 1520 | if (error || !buffer) { |
064af421 BP |
1521 | return error; |
1522 | } | |
1523 | payload = *buffer; | |
1524 | } else { | |
ac51afaf | 1525 | payload = request; |
064af421 BP |
1526 | buffer = NULL; |
1527 | } | |
1528 | ||
abe529af BP |
1529 | /* Send out packet. */ |
1530 | flow_extract(&payload, 0, ntohs(opo->in_port), &flow); | |
1531 | error = p->ofproto_class->packet_out(p, &payload, &flow, | |
1532 | ofp_actions, n_ofp_actions); | |
ac51afaf | 1533 | ofpbuf_delete(buffer); |
abe529af BP |
1534 | |
1535 | return error; | |
064af421 BP |
1536 | } |
1537 | ||
1538 | static void | |
abe529af | 1539 | update_port_config(struct ofport *port, ovs_be32 config, ovs_be32 mask) |
064af421 | 1540 | { |
abe529af BP |
1541 | ovs_be32 old_config = port->opp.config; |
1542 | ||
064af421 | 1543 | mask &= config ^ port->opp.config; |
9cfcdadf BP |
1544 | if (mask & htonl(OFPPC_PORT_DOWN)) { |
1545 | if (config & htonl(OFPPC_PORT_DOWN)) { | |
064af421 BP |
1546 | netdev_turn_flags_off(port->netdev, NETDEV_UP, true); |
1547 | } else { | |
1548 | netdev_turn_flags_on(port->netdev, NETDEV_UP, true); | |
1549 | } | |
1550 | } | |
abe529af BP |
1551 | |
1552 | port->opp.config ^= mask & (htonl(OFPPC_NO_RECV | OFPPC_NO_RECV_STP | | |
1553 | OFPPC_NO_FLOOD | OFPPC_NO_FWD | | |
1554 | OFPPC_NO_PACKET_IN)); | |
1555 | if (port->opp.config != old_config) { | |
1556 | port->ofproto->ofproto_class->port_reconfigured(port, old_config); | |
064af421 BP |
1557 | } |
1558 | } | |
1559 | ||
1560 | static int | |
d1e2cf21 | 1561 | handle_port_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 1562 | { |
64ff1d96 | 1563 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
d1e2cf21 | 1564 | const struct ofp_port_mod *opm = (const struct ofp_port_mod *) oh; |
064af421 BP |
1565 | struct ofport *port; |
1566 | int error; | |
1567 | ||
2228b50d | 1568 | error = reject_slave_controller(ofconn, "OFPT_PORT_MOD"); |
9deba63b BP |
1569 | if (error) { |
1570 | return error; | |
1571 | } | |
064af421 | 1572 | |
abe529af | 1573 | port = ofproto_get_port(p, ntohs(opm->port_no)); |
064af421 BP |
1574 | if (!port) { |
1575 | return ofp_mkerr(OFPET_PORT_MOD_FAILED, OFPPMFC_BAD_PORT); | |
1576 | } else if (memcmp(port->opp.hw_addr, opm->hw_addr, OFP_ETH_ALEN)) { | |
1577 | return ofp_mkerr(OFPET_PORT_MOD_FAILED, OFPPMFC_BAD_HW_ADDR); | |
1578 | } else { | |
abe529af | 1579 | update_port_config(port, opm->config, opm->mask); |
064af421 BP |
1580 | if (opm->advertise) { |
1581 | netdev_set_advertisements(port->netdev, ntohl(opm->advertise)); | |
1582 | } | |
1583 | } | |
1584 | return 0; | |
1585 | } | |
1586 | ||
1587 | static struct ofpbuf * | |
06a5e131 | 1588 | make_ofp_stats_reply(ovs_be32 xid, ovs_be16 type, size_t body_len) |
064af421 BP |
1589 | { |
1590 | struct ofp_stats_reply *osr; | |
1591 | struct ofpbuf *msg; | |
1592 | ||
1593 | msg = ofpbuf_new(MIN(sizeof *osr + body_len, UINT16_MAX)); | |
1594 | osr = put_openflow_xid(sizeof *osr, OFPT_STATS_REPLY, xid, msg); | |
1595 | osr->type = type; | |
1596 | osr->flags = htons(0); | |
1597 | return msg; | |
1598 | } | |
1599 | ||
1600 | static struct ofpbuf * | |
d1e2cf21 | 1601 | start_ofp_stats_reply(const struct ofp_header *request, size_t body_len) |
064af421 | 1602 | { |
d1e2cf21 BP |
1603 | const struct ofp_stats_request *osr |
1604 | = (const struct ofp_stats_request *) request; | |
1605 | return make_ofp_stats_reply(osr->header.xid, osr->type, body_len); | |
064af421 BP |
1606 | } |
1607 | ||
1608 | static void * | |
06a5e131 BP |
1609 | append_ofp_stats_reply(size_t nbytes, struct ofconn *ofconn, |
1610 | struct ofpbuf **msgp) | |
064af421 BP |
1611 | { |
1612 | struct ofpbuf *msg = *msgp; | |
1613 | assert(nbytes <= UINT16_MAX - sizeof(struct ofp_stats_reply)); | |
1614 | if (nbytes + msg->size > UINT16_MAX) { | |
1615 | struct ofp_stats_reply *reply = msg->data; | |
1616 | reply->flags = htons(OFPSF_REPLY_MORE); | |
06a5e131 | 1617 | *msgp = make_ofp_stats_reply(reply->header.xid, reply->type, nbytes); |
b0421aa2 | 1618 | ofconn_send_reply(ofconn, msg); |
064af421 BP |
1619 | } |
1620 | return ofpbuf_put_uninit(*msgp, nbytes); | |
1621 | } | |
1622 | ||
09246b99 BP |
1623 | static struct ofpbuf * |
1624 | make_nxstats_reply(ovs_be32 xid, ovs_be32 subtype, size_t body_len) | |
1625 | { | |
1626 | struct nicira_stats_msg *nsm; | |
1627 | struct ofpbuf *msg; | |
1628 | ||
1629 | msg = ofpbuf_new(MIN(sizeof *nsm + body_len, UINT16_MAX)); | |
1630 | nsm = put_openflow_xid(sizeof *nsm, OFPT_STATS_REPLY, xid, msg); | |
1631 | nsm->type = htons(OFPST_VENDOR); | |
1632 | nsm->flags = htons(0); | |
1633 | nsm->vendor = htonl(NX_VENDOR_ID); | |
d5f2379b | 1634 | nsm->subtype = subtype; |
09246b99 BP |
1635 | return msg; |
1636 | } | |
1637 | ||
1638 | static struct ofpbuf * | |
1639 | start_nxstats_reply(const struct nicira_stats_msg *request, size_t body_len) | |
1640 | { | |
1641 | return make_nxstats_reply(request->header.xid, request->subtype, body_len); | |
1642 | } | |
1643 | ||
1644 | static void | |
1645 | append_nxstats_reply(size_t nbytes, struct ofconn *ofconn, | |
1646 | struct ofpbuf **msgp) | |
1647 | { | |
1648 | struct ofpbuf *msg = *msgp; | |
1649 | assert(nbytes <= UINT16_MAX - sizeof(struct nicira_stats_msg)); | |
1650 | if (nbytes + msg->size > UINT16_MAX) { | |
1651 | struct nicira_stats_msg *reply = msg->data; | |
1652 | reply->flags = htons(OFPSF_REPLY_MORE); | |
1653 | *msgp = make_nxstats_reply(reply->header.xid, reply->subtype, nbytes); | |
b0421aa2 | 1654 | ofconn_send_reply(ofconn, msg); |
09246b99 BP |
1655 | } |
1656 | ofpbuf_prealloc_tailroom(*msgp, nbytes); | |
1657 | } | |
1658 | ||
064af421 | 1659 | static int |
3269c562 | 1660 | handle_desc_stats_request(struct ofconn *ofconn, |
d1e2cf21 | 1661 | const struct ofp_header *request) |
064af421 | 1662 | { |
64ff1d96 | 1663 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 BP |
1664 | struct ofp_desc_stats *ods; |
1665 | struct ofpbuf *msg; | |
1666 | ||
06a5e131 BP |
1667 | msg = start_ofp_stats_reply(request, sizeof *ods); |
1668 | ods = append_ofp_stats_reply(sizeof *ods, ofconn, &msg); | |
5a719c38 JP |
1669 | memset(ods, 0, sizeof *ods); |
1670 | ovs_strlcpy(ods->mfr_desc, p->mfr_desc, sizeof ods->mfr_desc); | |
1671 | ovs_strlcpy(ods->hw_desc, p->hw_desc, sizeof ods->hw_desc); | |
1672 | ovs_strlcpy(ods->sw_desc, p->sw_desc, sizeof ods->sw_desc); | |
1673 | ovs_strlcpy(ods->serial_num, p->serial_desc, sizeof ods->serial_num); | |
1674 | ovs_strlcpy(ods->dp_desc, p->dp_desc, sizeof ods->dp_desc); | |
b0421aa2 | 1675 | ofconn_send_reply(ofconn, msg); |
064af421 BP |
1676 | |
1677 | return 0; | |
1678 | } | |
1679 | ||
064af421 | 1680 | static int |
3269c562 | 1681 | handle_table_stats_request(struct ofconn *ofconn, |
d1e2cf21 | 1682 | const struct ofp_header *request) |
064af421 | 1683 | { |
64ff1d96 | 1684 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 BP |
1685 | struct ofp_table_stats *ots; |
1686 | struct ofpbuf *msg; | |
064af421 | 1687 | |
06a5e131 | 1688 | msg = start_ofp_stats_reply(request, sizeof *ots * 2); |
064af421 | 1689 | |
064af421 | 1690 | /* Classifier table. */ |
06a5e131 | 1691 | ots = append_ofp_stats_reply(sizeof *ots, ofconn, &msg); |
064af421 | 1692 | memset(ots, 0, sizeof *ots); |
064af421 | 1693 | strcpy(ots->name, "classifier"); |
f1dd9191 | 1694 | ots->wildcards = (ofconn_get_flow_format(ofconn) == NXFF_OPENFLOW10 |
f9bfea14 | 1695 | ? htonl(OFPFW_ALL) : htonl(OVSFW_ALL)); |
ad828225 | 1696 | ots->max_entries = htonl(1024 * 1024); /* An arbitrary big number. */ |
bcf84111 | 1697 | ots->active_count = htonl(classifier_count(&p->cls)); |
c4617b3c BP |
1698 | put_32aligned_be64(&ots->lookup_count, htonll(0)); /* XXX */ |
1699 | put_32aligned_be64(&ots->matched_count, htonll(0)); /* XXX */ | |
064af421 | 1700 | |
b0421aa2 | 1701 | ofconn_send_reply(ofconn, msg); |
064af421 BP |
1702 | return 0; |
1703 | } | |
1704 | ||
abaad8cf | 1705 | static void |
ca0f572c | 1706 | append_port_stat(struct ofport *port, struct ofconn *ofconn, |
a4948b95 | 1707 | struct ofpbuf **msgp) |
abaad8cf JP |
1708 | { |
1709 | struct netdev_stats stats; | |
1710 | struct ofp_port_stats *ops; | |
1711 | ||
d295e8e9 JP |
1712 | /* Intentionally ignore return value, since errors will set |
1713 | * 'stats' to all-1s, which is correct for OpenFlow, and | |
abaad8cf JP |
1714 | * netdev_get_stats() will log errors. */ |
1715 | netdev_get_stats(port->netdev, &stats); | |
1716 | ||
06a5e131 | 1717 | ops = append_ofp_stats_reply(sizeof *ops, ofconn, msgp); |
9cfcdadf | 1718 | ops->port_no = port->opp.port_no; |
abaad8cf | 1719 | memset(ops->pad, 0, sizeof ops->pad); |
c4617b3c BP |
1720 | put_32aligned_be64(&ops->rx_packets, htonll(stats.rx_packets)); |
1721 | put_32aligned_be64(&ops->tx_packets, htonll(stats.tx_packets)); | |
1722 | put_32aligned_be64(&ops->rx_bytes, htonll(stats.rx_bytes)); | |
1723 | put_32aligned_be64(&ops->tx_bytes, htonll(stats.tx_bytes)); | |
1724 | put_32aligned_be64(&ops->rx_dropped, htonll(stats.rx_dropped)); | |
1725 | put_32aligned_be64(&ops->tx_dropped, htonll(stats.tx_dropped)); | |
1726 | put_32aligned_be64(&ops->rx_errors, htonll(stats.rx_errors)); | |
1727 | put_32aligned_be64(&ops->tx_errors, htonll(stats.tx_errors)); | |
1728 | put_32aligned_be64(&ops->rx_frame_err, htonll(stats.rx_frame_errors)); | |
1729 | put_32aligned_be64(&ops->rx_over_err, htonll(stats.rx_over_errors)); | |
1730 | put_32aligned_be64(&ops->rx_crc_err, htonll(stats.rx_crc_errors)); | |
1731 | put_32aligned_be64(&ops->collisions, htonll(stats.collisions)); | |
abaad8cf JP |
1732 | } |
1733 | ||
064af421 | 1734 | static int |
d1e2cf21 | 1735 | handle_port_stats_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 1736 | { |
64ff1d96 | 1737 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
d1e2cf21 | 1738 | const struct ofp_port_stats_request *psr = ofputil_stats_body(oh); |
064af421 BP |
1739 | struct ofp_port_stats *ops; |
1740 | struct ofpbuf *msg; | |
1741 | struct ofport *port; | |
064af421 | 1742 | |
d1e2cf21 | 1743 | msg = start_ofp_stats_reply(oh, sizeof *ops * 16); |
abaad8cf | 1744 | if (psr->port_no != htons(OFPP_NONE)) { |
abe529af | 1745 | port = ofproto_get_port(p, ntohs(psr->port_no)); |
abaad8cf | 1746 | if (port) { |
ca0f572c | 1747 | append_port_stat(port, ofconn, &msg); |
abaad8cf JP |
1748 | } |
1749 | } else { | |
4e8e4213 | 1750 | HMAP_FOR_EACH (port, hmap_node, &p->ports) { |
ca0f572c | 1751 | append_port_stat(port, ofconn, &msg); |
abaad8cf | 1752 | } |
064af421 BP |
1753 | } |
1754 | ||
b0421aa2 | 1755 | ofconn_send_reply(ofconn, msg); |
064af421 BP |
1756 | return 0; |
1757 | } | |
1758 | ||
c6ebb8fb | 1759 | static void |
588cd7b5 | 1760 | calc_flow_duration__(long long int start, uint32_t *sec, uint32_t *nsec) |
c6ebb8fb BP |
1761 | { |
1762 | long long int msecs = time_msec() - start; | |
588cd7b5 BP |
1763 | *sec = msecs / 1000; |
1764 | *nsec = (msecs % 1000) * (1000 * 1000); | |
1765 | } | |
1766 | ||
1767 | static void | |
1768 | calc_flow_duration(long long int start, ovs_be32 *sec_be, ovs_be32 *nsec_be) | |
1769 | { | |
1770 | uint32_t sec, nsec; | |
1771 | ||
1772 | calc_flow_duration__(start, &sec, &nsec); | |
1773 | *sec_be = htonl(sec); | |
1774 | *nsec_be = htonl(nsec); | |
c6ebb8fb BP |
1775 | } |
1776 | ||
064af421 | 1777 | static void |
5ecc9d81 BP |
1778 | put_ofp_flow_stats(struct ofconn *ofconn, struct rule *rule, |
1779 | ovs_be16 out_port, struct ofpbuf **replyp) | |
064af421 | 1780 | { |
abe529af | 1781 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
064af421 BP |
1782 | struct ofp_flow_stats *ofs; |
1783 | uint64_t packet_count, byte_count; | |
c4617b3c | 1784 | ovs_be64 cookie; |
064af421 BP |
1785 | size_t act_len, len; |
1786 | ||
5ecc9d81 | 1787 | if (rule_is_hidden(rule) || !rule_has_out_port(rule, out_port)) { |
064af421 BP |
1788 | return; |
1789 | } | |
1790 | ||
1791 | act_len = sizeof *rule->actions * rule->n_actions; | |
1792 | len = offsetof(struct ofp_flow_stats, actions) + act_len; | |
1793 | ||
abe529af | 1794 | ofproto->ofproto_class->rule_get_stats(rule, &packet_count, &byte_count); |
064af421 | 1795 | |
5ecc9d81 | 1796 | ofs = append_ofp_stats_reply(len, ofconn, replyp); |
064af421 | 1797 | ofs->length = htons(len); |
ad828225 | 1798 | ofs->table_id = 0; |
064af421 | 1799 | ofs->pad = 0; |
f1dd9191 BP |
1800 | ofputil_cls_rule_to_match(&rule->cr, ofconn_get_flow_format(ofconn), |
1801 | &ofs->match, rule->flow_cookie, &cookie); | |
c4617b3c | 1802 | put_32aligned_be64(&ofs->cookie, cookie); |
c6ebb8fb | 1803 | calc_flow_duration(rule->created, &ofs->duration_sec, &ofs->duration_nsec); |
064af421 BP |
1804 | ofs->priority = htons(rule->cr.priority); |
1805 | ofs->idle_timeout = htons(rule->idle_timeout); | |
1806 | ofs->hard_timeout = htons(rule->hard_timeout); | |
39997502 | 1807 | memset(ofs->pad2, 0, sizeof ofs->pad2); |
c4617b3c BP |
1808 | put_32aligned_be64(&ofs->packet_count, htonll(packet_count)); |
1809 | put_32aligned_be64(&ofs->byte_count, htonll(byte_count)); | |
3dffcf07 BP |
1810 | if (rule->n_actions > 0) { |
1811 | memcpy(ofs->actions, rule->actions, act_len); | |
1812 | } | |
064af421 BP |
1813 | } |
1814 | ||
3c4486a5 BP |
1815 | static bool |
1816 | is_valid_table(uint8_t table_id) | |
064af421 | 1817 | { |
a02e5331 BP |
1818 | if (table_id == 0 || table_id == 0xff) { |
1819 | return true; | |
1820 | } else { | |
1821 | /* It would probably be better to reply with an error but there doesn't | |
1822 | * seem to be any appropriate value, so that might just be | |
1823 | * confusing. */ | |
1824 | VLOG_WARN_RL(&rl, "controller asked for invalid table %"PRIu8, | |
1825 | table_id); | |
1826 | return false; | |
1827 | } | |
064af421 BP |
1828 | } |
1829 | ||
1830 | static int | |
d1e2cf21 | 1831 | handle_flow_stats_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 1832 | { |
d1e2cf21 | 1833 | const struct ofp_flow_stats_request *fsr = ofputil_stats_body(oh); |
64ff1d96 | 1834 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
5ecc9d81 | 1835 | struct ofpbuf *reply; |
064af421 | 1836 | |
064af421 | 1837 | COVERAGE_INC(ofproto_flows_req); |
d1e2cf21 | 1838 | reply = start_ofp_stats_reply(oh, 1024); |
3c4486a5 | 1839 | if (is_valid_table(fsr->table_id)) { |
5ecc9d81 | 1840 | struct cls_cursor cursor; |
3c4486a5 | 1841 | struct cls_rule target; |
5ecc9d81 | 1842 | struct rule *rule; |
3c4486a5 | 1843 | |
d8ae4d67 BP |
1844 | ofputil_cls_rule_from_match(&fsr->match, 0, NXFF_OPENFLOW10, 0, |
1845 | &target); | |
64ff1d96 | 1846 | cls_cursor_init(&cursor, &ofproto->cls, &target); |
5ecc9d81 BP |
1847 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { |
1848 | put_ofp_flow_stats(ofconn, rule, fsr->out_port, &reply); | |
1849 | } | |
3c4486a5 | 1850 | } |
b0421aa2 | 1851 | ofconn_send_reply(ofconn, reply); |
3c4486a5 | 1852 | |
064af421 BP |
1853 | return 0; |
1854 | } | |
1855 | ||
09246b99 | 1856 | static void |
5ecc9d81 BP |
1857 | put_nx_flow_stats(struct ofconn *ofconn, struct rule *rule, |
1858 | ovs_be16 out_port, struct ofpbuf **replyp) | |
09246b99 | 1859 | { |
09246b99 BP |
1860 | struct nx_flow_stats *nfs; |
1861 | uint64_t packet_count, byte_count; | |
1862 | size_t act_len, start_len; | |
5ecc9d81 | 1863 | struct ofpbuf *reply; |
09246b99 | 1864 | |
5ecc9d81 | 1865 | if (rule_is_hidden(rule) || !rule_has_out_port(rule, out_port)) { |
09246b99 BP |
1866 | return; |
1867 | } | |
1868 | ||
abe529af BP |
1869 | rule->ofproto->ofproto_class->rule_get_stats(rule, |
1870 | &packet_count, &byte_count); | |
09246b99 BP |
1871 | |
1872 | act_len = sizeof *rule->actions * rule->n_actions; | |
1873 | ||
5ecc9d81 | 1874 | append_nxstats_reply(sizeof *nfs + NXM_MAX_LEN + act_len, ofconn, replyp); |
1dfee98d | 1875 | start_len = (*replyp)->size; |
5ecc9d81 BP |
1876 | reply = *replyp; |
1877 | ||
1878 | nfs = ofpbuf_put_uninit(reply, sizeof *nfs); | |
09246b99 BP |
1879 | nfs->table_id = 0; |
1880 | nfs->pad = 0; | |
1881 | calc_flow_duration(rule->created, &nfs->duration_sec, &nfs->duration_nsec); | |
1882 | nfs->cookie = rule->flow_cookie; | |
1883 | nfs->priority = htons(rule->cr.priority); | |
1884 | nfs->idle_timeout = htons(rule->idle_timeout); | |
1885 | nfs->hard_timeout = htons(rule->hard_timeout); | |
5ecc9d81 | 1886 | nfs->match_len = htons(nx_put_match(reply, &rule->cr)); |
09246b99 BP |
1887 | memset(nfs->pad2, 0, sizeof nfs->pad2); |
1888 | nfs->packet_count = htonll(packet_count); | |
1889 | nfs->byte_count = htonll(byte_count); | |
1890 | if (rule->n_actions > 0) { | |
5ecc9d81 | 1891 | ofpbuf_put(reply, rule->actions, act_len); |
09246b99 | 1892 | } |
5ecc9d81 | 1893 | nfs->length = htons(reply->size - start_len); |
09246b99 BP |
1894 | } |
1895 | ||
1896 | static int | |
d1e2cf21 | 1897 | handle_nxst_flow(struct ofconn *ofconn, const struct ofp_header *oh) |
09246b99 | 1898 | { |
64ff1d96 | 1899 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
09246b99 | 1900 | struct nx_flow_stats_request *nfsr; |
09246b99 | 1901 | struct cls_rule target; |
5ecc9d81 | 1902 | struct ofpbuf *reply; |
d1e2cf21 | 1903 | struct ofpbuf b; |
09246b99 BP |
1904 | int error; |
1905 | ||
0bc9407d | 1906 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
d1e2cf21 | 1907 | |
09246b99 | 1908 | /* Dissect the message. */ |
bbc32a88 | 1909 | nfsr = ofpbuf_pull(&b, sizeof *nfsr); |
d1e2cf21 | 1910 | error = nx_pull_match(&b, ntohs(nfsr->match_len), 0, &target); |
09246b99 BP |
1911 | if (error) { |
1912 | return error; | |
1913 | } | |
d1e2cf21 BP |
1914 | if (b.size) { |
1915 | return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_BAD_LEN); | |
1916 | } | |
09246b99 BP |
1917 | |
1918 | COVERAGE_INC(ofproto_flows_req); | |
5ecc9d81 | 1919 | reply = start_nxstats_reply(&nfsr->nsm, 1024); |
3c4486a5 | 1920 | if (is_valid_table(nfsr->table_id)) { |
5ecc9d81 BP |
1921 | struct cls_cursor cursor; |
1922 | struct rule *rule; | |
1923 | ||
64ff1d96 | 1924 | cls_cursor_init(&cursor, &ofproto->cls, &target); |
5ecc9d81 BP |
1925 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { |
1926 | put_nx_flow_stats(ofconn, rule, nfsr->out_port, &reply); | |
1927 | } | |
3c4486a5 | 1928 | } |
b0421aa2 | 1929 | ofconn_send_reply(ofconn, reply); |
5ecc9d81 | 1930 | |
09246b99 BP |
1931 | return 0; |
1932 | } | |
1933 | ||
4f2cad2c | 1934 | static void |
3394b5b6 | 1935 | flow_stats_ds(struct rule *rule, struct ds *results) |
4f2cad2c | 1936 | { |
4f2cad2c JP |
1937 | uint64_t packet_count, byte_count; |
1938 | size_t act_len = sizeof *rule->actions * rule->n_actions; | |
1939 | ||
abe529af BP |
1940 | rule->ofproto->ofproto_class->rule_get_stats(rule, |
1941 | &packet_count, &byte_count); | |
4f2cad2c JP |
1942 | |
1943 | ds_put_format(results, "duration=%llds, ", | |
1944 | (time_msec() - rule->created) / 1000); | |
52ae00b3 | 1945 | ds_put_format(results, "priority=%u, ", rule->cr.priority); |
4f2cad2c JP |
1946 | ds_put_format(results, "n_packets=%"PRIu64", ", packet_count); |
1947 | ds_put_format(results, "n_bytes=%"PRIu64", ", byte_count); | |
cb833cf6 | 1948 | cls_rule_format(&rule->cr, results); |
a5df0e72 | 1949 | ds_put_char(results, ','); |
3dffcf07 BP |
1950 | if (act_len > 0) { |
1951 | ofp_print_actions(results, &rule->actions->header, act_len); | |
3c8552c1 JP |
1952 | } else { |
1953 | ds_put_cstr(results, "drop"); | |
3dffcf07 | 1954 | } |
4f2cad2c JP |
1955 | ds_put_cstr(results, "\n"); |
1956 | } | |
1957 | ||
d295e8e9 | 1958 | /* Adds a pretty-printed description of all flows to 'results', including |
ee8b231c | 1959 | * hidden flows (e.g., set up by in-band control). */ |
4f2cad2c JP |
1960 | void |
1961 | ofproto_get_all_flows(struct ofproto *p, struct ds *results) | |
1962 | { | |
5ecc9d81 BP |
1963 | struct cls_cursor cursor; |
1964 | struct rule *rule; | |
064af421 | 1965 | |
5ecc9d81 BP |
1966 | cls_cursor_init(&cursor, &p->cls, NULL); |
1967 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { | |
3394b5b6 | 1968 | flow_stats_ds(rule, results); |
064af421 | 1969 | } |
064af421 BP |
1970 | } |
1971 | ||
b5827b24 BP |
1972 | /* Obtains the NetFlow engine type and engine ID for 'ofproto' into |
1973 | * '*engine_type' and '*engine_id', respectively. */ | |
1974 | void | |
1975 | ofproto_get_netflow_ids(const struct ofproto *ofproto, | |
1976 | uint8_t *engine_type, uint8_t *engine_id) | |
1977 | { | |
abe529af | 1978 | ofproto->ofproto_class->get_netflow_ids(ofproto, engine_type, engine_id); |
b5827b24 BP |
1979 | } |
1980 | ||
27d34fce BP |
1981 | static void |
1982 | query_aggregate_stats(struct ofproto *ofproto, struct cls_rule *target, | |
734bbeb4 | 1983 | ovs_be16 out_port, uint8_t table_id, |
27d34fce BP |
1984 | struct ofp_aggregate_stats_reply *oasr) |
1985 | { | |
5ecc9d81 BP |
1986 | uint64_t total_packets = 0; |
1987 | uint64_t total_bytes = 0; | |
1988 | int n_flows = 0; | |
27d34fce BP |
1989 | |
1990 | COVERAGE_INC(ofproto_agg_request); | |
5ecc9d81 | 1991 | |
3c4486a5 | 1992 | if (is_valid_table(table_id)) { |
5ecc9d81 BP |
1993 | struct cls_cursor cursor; |
1994 | struct rule *rule; | |
3c4486a5 | 1995 | |
5ecc9d81 BP |
1996 | cls_cursor_init(&cursor, &ofproto->cls, target); |
1997 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { | |
1998 | if (!rule_is_hidden(rule) && rule_has_out_port(rule, out_port)) { | |
1999 | uint64_t packet_count; | |
2000 | uint64_t byte_count; | |
2001 | ||
abe529af BP |
2002 | ofproto->ofproto_class->rule_get_stats(rule, &packet_count, |
2003 | &byte_count); | |
5ecc9d81 BP |
2004 | |
2005 | total_packets += packet_count; | |
2006 | total_bytes += byte_count; | |
2007 | n_flows++; | |
2008 | } | |
2009 | } | |
3c4486a5 | 2010 | } |
27d34fce | 2011 | |
5ecc9d81 | 2012 | oasr->flow_count = htonl(n_flows); |
c4617b3c BP |
2013 | put_32aligned_be64(&oasr->packet_count, htonll(total_packets)); |
2014 | put_32aligned_be64(&oasr->byte_count, htonll(total_bytes)); | |
27d34fce BP |
2015 | memset(oasr->pad, 0, sizeof oasr->pad); |
2016 | } | |
2017 | ||
064af421 | 2018 | static int |
3269c562 | 2019 | handle_aggregate_stats_request(struct ofconn *ofconn, |
d1e2cf21 | 2020 | const struct ofp_header *oh) |
064af421 | 2021 | { |
d1e2cf21 | 2022 | const struct ofp_aggregate_stats_request *request = ofputil_stats_body(oh); |
64ff1d96 | 2023 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
064af421 | 2024 | struct ofp_aggregate_stats_reply *reply; |
064af421 BP |
2025 | struct cls_rule target; |
2026 | struct ofpbuf *msg; | |
2027 | ||
d8ae4d67 BP |
2028 | ofputil_cls_rule_from_match(&request->match, 0, NXFF_OPENFLOW10, 0, |
2029 | &target); | |
064af421 | 2030 | |
d1e2cf21 | 2031 | msg = start_ofp_stats_reply(oh, sizeof *reply); |
06a5e131 | 2032 | reply = append_ofp_stats_reply(sizeof *reply, ofconn, &msg); |
64ff1d96 | 2033 | query_aggregate_stats(ofproto, &target, request->out_port, |
27d34fce | 2034 | request->table_id, reply); |
b0421aa2 | 2035 | ofconn_send_reply(ofconn, msg); |
064af421 BP |
2036 | return 0; |
2037 | } | |
2038 | ||
09246b99 | 2039 | static int |
d1e2cf21 | 2040 | handle_nxst_aggregate(struct ofconn *ofconn, const struct ofp_header *oh) |
09246b99 | 2041 | { |
64ff1d96 | 2042 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
09246b99 BP |
2043 | struct nx_aggregate_stats_request *request; |
2044 | struct ofp_aggregate_stats_reply *reply; | |
2045 | struct cls_rule target; | |
d1e2cf21 | 2046 | struct ofpbuf b; |
09246b99 BP |
2047 | struct ofpbuf *buf; |
2048 | int error; | |
2049 | ||
0bc9407d | 2050 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
d1e2cf21 | 2051 | |
09246b99 | 2052 | /* Dissect the message. */ |
bbc32a88 | 2053 | request = ofpbuf_pull(&b, sizeof *request); |
d1e2cf21 | 2054 | error = nx_pull_match(&b, ntohs(request->match_len), 0, &target); |
09246b99 BP |
2055 | if (error) { |
2056 | return error; | |
2057 | } | |
d1e2cf21 BP |
2058 | if (b.size) { |
2059 | return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_BAD_LEN); | |
2060 | } | |
09246b99 BP |
2061 | |
2062 | /* Reply. */ | |
2063 | COVERAGE_INC(ofproto_flows_req); | |
2064 | buf = start_nxstats_reply(&request->nsm, sizeof *reply); | |
2065 | reply = ofpbuf_put_uninit(buf, sizeof *reply); | |
64ff1d96 | 2066 | query_aggregate_stats(ofproto, &target, request->out_port, |
09246b99 | 2067 | request->table_id, reply); |
b0421aa2 | 2068 | ofconn_send_reply(ofconn, buf); |
09246b99 BP |
2069 | |
2070 | return 0; | |
2071 | } | |
2072 | ||
c1c9c9c4 BP |
2073 | struct queue_stats_cbdata { |
2074 | struct ofconn *ofconn; | |
ca0f572c | 2075 | struct ofport *ofport; |
c1c9c9c4 | 2076 | struct ofpbuf *msg; |
c1c9c9c4 BP |
2077 | }; |
2078 | ||
2079 | static void | |
db9220c3 | 2080 | put_queue_stats(struct queue_stats_cbdata *cbdata, uint32_t queue_id, |
c1c9c9c4 BP |
2081 | const struct netdev_queue_stats *stats) |
2082 | { | |
2083 | struct ofp_queue_stats *reply; | |
2084 | ||
06a5e131 | 2085 | reply = append_ofp_stats_reply(sizeof *reply, cbdata->ofconn, &cbdata->msg); |
9cfcdadf | 2086 | reply->port_no = cbdata->ofport->opp.port_no; |
c1c9c9c4 BP |
2087 | memset(reply->pad, 0, sizeof reply->pad); |
2088 | reply->queue_id = htonl(queue_id); | |
c4617b3c BP |
2089 | put_32aligned_be64(&reply->tx_bytes, htonll(stats->tx_bytes)); |
2090 | put_32aligned_be64(&reply->tx_packets, htonll(stats->tx_packets)); | |
2091 | put_32aligned_be64(&reply->tx_errors, htonll(stats->tx_errors)); | |
c1c9c9c4 BP |
2092 | } |
2093 | ||
2094 | static void | |
db9220c3 | 2095 | handle_queue_stats_dump_cb(uint32_t queue_id, |
c1c9c9c4 BP |
2096 | struct netdev_queue_stats *stats, |
2097 | void *cbdata_) | |
2098 | { | |
2099 | struct queue_stats_cbdata *cbdata = cbdata_; | |
2100 | ||
2101 | put_queue_stats(cbdata, queue_id, stats); | |
2102 | } | |
2103 | ||
2104 | static void | |
ca0f572c | 2105 | handle_queue_stats_for_port(struct ofport *port, uint32_t queue_id, |
c1c9c9c4 BP |
2106 | struct queue_stats_cbdata *cbdata) |
2107 | { | |
ca0f572c | 2108 | cbdata->ofport = port; |
c1c9c9c4 BP |
2109 | if (queue_id == OFPQ_ALL) { |
2110 | netdev_dump_queue_stats(port->netdev, | |
2111 | handle_queue_stats_dump_cb, cbdata); | |
2112 | } else { | |
2113 | struct netdev_queue_stats stats; | |
2114 | ||
1ac788f6 BP |
2115 | if (!netdev_get_queue_stats(port->netdev, queue_id, &stats)) { |
2116 | put_queue_stats(cbdata, queue_id, &stats); | |
2117 | } | |
c1c9c9c4 BP |
2118 | } |
2119 | } | |
2120 | ||
2121 | static int | |
d1e2cf21 | 2122 | handle_queue_stats_request(struct ofconn *ofconn, const struct ofp_header *oh) |
c1c9c9c4 | 2123 | { |
64ff1d96 | 2124 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
d1e2cf21 | 2125 | const struct ofp_queue_stats_request *qsr; |
c1c9c9c4 BP |
2126 | struct queue_stats_cbdata cbdata; |
2127 | struct ofport *port; | |
2128 | unsigned int port_no; | |
2129 | uint32_t queue_id; | |
2130 | ||
d1e2cf21 BP |
2131 | qsr = ofputil_stats_body(oh); |
2132 | if (!qsr) { | |
c1c9c9c4 BP |
2133 | return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_BAD_LEN); |
2134 | } | |
c1c9c9c4 BP |
2135 | |
2136 | COVERAGE_INC(ofproto_queue_req); | |
2137 | ||
2138 | cbdata.ofconn = ofconn; | |
d1e2cf21 | 2139 | cbdata.msg = start_ofp_stats_reply(oh, 128); |
c1c9c9c4 BP |
2140 | |
2141 | port_no = ntohs(qsr->port_no); | |
2142 | queue_id = ntohl(qsr->queue_id); | |
2143 | if (port_no == OFPP_ALL) { | |
4e8e4213 | 2144 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
ca0f572c | 2145 | handle_queue_stats_for_port(port, queue_id, &cbdata); |
c1c9c9c4 | 2146 | } |
abe529af BP |
2147 | } else if (port_no < OFPP_MAX) { |
2148 | port = ofproto_get_port(ofproto, port_no); | |
c1c9c9c4 | 2149 | if (port) { |
ca0f572c | 2150 | handle_queue_stats_for_port(port, queue_id, &cbdata); |
c1c9c9c4 BP |
2151 | } |
2152 | } else { | |
2153 | ofpbuf_delete(cbdata.msg); | |
2154 | return ofp_mkerr(OFPET_QUEUE_OP_FAILED, OFPQOFC_BAD_PORT); | |
2155 | } | |
b0421aa2 | 2156 | ofconn_send_reply(ofconn, cbdata.msg); |
c1c9c9c4 BP |
2157 | |
2158 | return 0; | |
2159 | } | |
2160 | ||
79eee1eb BP |
2161 | /* Implements OFPFC_ADD and the cases for OFPFC_MODIFY and OFPFC_MODIFY_STRICT |
2162 | * in which no matching flow already exists in the flow table. | |
2163 | * | |
2164 | * Adds the flow specified by 'ofm', which is followed by 'n_actions' | |
64ff1d96 | 2165 | * ofp_actions, to the ofproto's flow table. Returns 0 on success or an |
3269c562 | 2166 | * OpenFlow error code as encoded by ofp_mkerr() on failure. |
79eee1eb BP |
2167 | * |
2168 | * 'ofconn' is used to retrieve the packet buffer specified in ofm->buffer_id, | |
2169 | * if any. */ | |
064af421 | 2170 | static int |
3052b0c5 | 2171 | add_flow(struct ofconn *ofconn, struct flow_mod *fm) |
064af421 | 2172 | { |
64ff1d96 | 2173 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 BP |
2174 | struct ofpbuf *packet; |
2175 | struct rule *rule; | |
2176 | uint16_t in_port; | |
abe529af | 2177 | int buf_err; |
064af421 BP |
2178 | int error; |
2179 | ||
3052b0c5 BP |
2180 | if (fm->flags & OFPFF_CHECK_OVERLAP |
2181 | && classifier_rule_overlaps(&p->cls, &fm->cr)) { | |
2182 | return ofp_mkerr(OFPET_FLOW_MOD_FAILED, OFPFMFC_OVERLAP); | |
49bdc010 | 2183 | } |
abe529af BP |
2184 | |
2185 | buf_err = ofconn_pktbuf_retrieve(ofconn, fm->buffer_id, &packet, &in_port); | |
2186 | error = rule_create(p, &fm->cr, fm->actions, fm->n_actions, | |
2187 | fm->idle_timeout, fm->hard_timeout, fm->cookie, | |
2188 | fm->flags & OFPFF_SEND_FLOW_REM, &rule); | |
2189 | if (error) { | |
2190 | ofpbuf_delete(packet); | |
2191 | return error; | |
064af421 BP |
2192 | } |
2193 | ||
afe75089 | 2194 | if (packet) { |
5bf0e941 BP |
2195 | assert(!buf_err); |
2196 | return rule_execute(rule, in_port, packet); | |
afe75089 | 2197 | } |
abe529af | 2198 | return buf_err; |
064af421 BP |
2199 | } |
2200 | ||
79eee1eb | 2201 | static struct rule * |
3052b0c5 | 2202 | find_flow_strict(struct ofproto *p, const struct flow_mod *fm) |
064af421 | 2203 | { |
3052b0c5 | 2204 | return rule_from_cls_rule(classifier_find_rule_exactly(&p->cls, &fm->cr)); |
79eee1eb | 2205 | } |
064af421 | 2206 | |
79eee1eb | 2207 | static int |
3269c562 | 2208 | send_buffered_packet(struct ofconn *ofconn, |
3052b0c5 | 2209 | struct rule *rule, uint32_t buffer_id) |
79eee1eb BP |
2210 | { |
2211 | struct ofpbuf *packet; | |
2212 | uint16_t in_port; | |
79eee1eb | 2213 | int error; |
064af421 | 2214 | |
3052b0c5 | 2215 | if (buffer_id == UINT32_MAX) { |
79eee1eb | 2216 | return 0; |
064af421 | 2217 | } |
79eee1eb | 2218 | |
10d0a1d2 | 2219 | error = ofconn_pktbuf_retrieve(ofconn, buffer_id, &packet, &in_port); |
79eee1eb BP |
2220 | if (error) { |
2221 | return error; | |
2222 | } | |
2223 | ||
5bf0e941 | 2224 | return rule_execute(rule, in_port, packet); |
064af421 | 2225 | } |
79eee1eb BP |
2226 | \f |
2227 | /* OFPFC_MODIFY and OFPFC_MODIFY_STRICT. */ | |
064af421 BP |
2228 | |
2229 | struct modify_flows_cbdata { | |
2230 | struct ofproto *ofproto; | |
3052b0c5 | 2231 | const struct flow_mod *fm; |
79eee1eb | 2232 | struct rule *match; |
064af421 BP |
2233 | }; |
2234 | ||
abe529af | 2235 | static int modify_flow(const struct flow_mod *, struct rule *); |
79eee1eb BP |
2236 | |
2237 | /* Implements OFPFC_MODIFY. Returns 0 on success or an OpenFlow error code as | |
2238 | * encoded by ofp_mkerr() on failure. | |
2239 | * | |
2240 | * 'ofconn' is used to retrieve the packet buffer specified in ofm->buffer_id, | |
2241 | * if any. */ | |
2242 | static int | |
3052b0c5 | 2243 | modify_flows_loose(struct ofconn *ofconn, struct flow_mod *fm) |
79eee1eb | 2244 | { |
64ff1d96 | 2245 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
5ecc9d81 BP |
2246 | struct rule *match = NULL; |
2247 | struct cls_cursor cursor; | |
2248 | struct rule *rule; | |
abe529af | 2249 | int error; |
79eee1eb | 2250 | |
abe529af | 2251 | error = 0; |
5ecc9d81 BP |
2252 | cls_cursor_init(&cursor, &p->cls, &fm->cr); |
2253 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { | |
2254 | if (!rule_is_hidden(rule)) { | |
abe529af BP |
2255 | int retval = modify_flow(fm, rule); |
2256 | if (!retval) { | |
2257 | match = rule; | |
2258 | } else { | |
2259 | error = retval; | |
2260 | } | |
5ecc9d81 BP |
2261 | } |
2262 | } | |
79eee1eb | 2263 | |
abe529af BP |
2264 | if (error) { |
2265 | return error; | |
2266 | } else if (match) { | |
d6302b0f BP |
2267 | /* This credits the packet to whichever flow happened to match last. |
2268 | * That's weird. Maybe we should do a lookup for the flow that | |
2269 | * actually matches the packet? Who knows. */ | |
5ecc9d81 | 2270 | send_buffered_packet(ofconn, match, fm->buffer_id); |
79eee1eb BP |
2271 | return 0; |
2272 | } else { | |
3052b0c5 | 2273 | return add_flow(ofconn, fm); |
79eee1eb BP |
2274 | } |
2275 | } | |
2276 | ||
2277 | /* Implements OFPFC_MODIFY_STRICT. Returns 0 on success or an OpenFlow error | |
2278 | * code as encoded by ofp_mkerr() on failure. | |
2279 | * | |
2280 | * 'ofconn' is used to retrieve the packet buffer specified in ofm->buffer_id, | |
2281 | * if any. */ | |
2282 | static int | |
3052b0c5 | 2283 | modify_flow_strict(struct ofconn *ofconn, struct flow_mod *fm) |
79eee1eb | 2284 | { |
64ff1d96 | 2285 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
3052b0c5 | 2286 | struct rule *rule = find_flow_strict(p, fm); |
79eee1eb | 2287 | if (rule && !rule_is_hidden(rule)) { |
abe529af BP |
2288 | int error = modify_flow(fm, rule); |
2289 | if (!error) { | |
2290 | error = send_buffered_packet(ofconn, rule, fm->buffer_id); | |
2291 | } | |
2292 | return error; | |
79eee1eb | 2293 | } else { |
3052b0c5 | 2294 | return add_flow(ofconn, fm); |
79eee1eb BP |
2295 | } |
2296 | } | |
2297 | ||
79eee1eb | 2298 | /* Implements core of OFPFC_MODIFY and OFPFC_MODIFY_STRICT where 'rule' has |
abe529af BP |
2299 | * been identified as a flow to be modified, by changing the rule's actions to |
2300 | * match those in 'ofm' (which is followed by 'n_actions' ofp_action[] | |
2301 | * structures). */ | |
064af421 | 2302 | static int |
abe529af | 2303 | modify_flow(const struct flow_mod *fm, struct rule *rule) |
064af421 | 2304 | { |
3052b0c5 | 2305 | size_t actions_len = fm->n_actions * sizeof *rule->actions; |
abe529af | 2306 | int error; |
79eee1eb | 2307 | |
3052b0c5 BP |
2308 | if (fm->n_actions == rule->n_actions |
2309 | && (!fm->n_actions | |
2310 | || !memcmp(fm->actions, rule->actions, actions_len))) { | |
abe529af BP |
2311 | error = 0; |
2312 | } else { | |
2313 | error = rule->ofproto->ofproto_class->rule_modify_actions( | |
2314 | rule, fm->actions, fm->n_actions); | |
2315 | if (!error) { | |
2316 | free(rule->actions); | |
2317 | rule->actions = (fm->n_actions | |
2318 | ? xmemdup(fm->actions, actions_len) | |
2319 | : NULL); | |
2320 | rule->n_actions = fm->n_actions; | |
2321 | } | |
79eee1eb BP |
2322 | } |
2323 | ||
abe529af BP |
2324 | if (!error) { |
2325 | rule->flow_cookie = fm->cookie; | |
2326 | } | |
79eee1eb | 2327 | |
abe529af | 2328 | return error; |
79eee1eb BP |
2329 | } |
2330 | \f | |
2331 | /* OFPFC_DELETE implementation. */ | |
2332 | ||
abe529af | 2333 | static void delete_flow(struct rule *, ovs_be16 out_port); |
79eee1eb BP |
2334 | |
2335 | /* Implements OFPFC_DELETE. */ | |
2336 | static void | |
3052b0c5 | 2337 | delete_flows_loose(struct ofproto *p, const struct flow_mod *fm) |
79eee1eb | 2338 | { |
5ecc9d81 BP |
2339 | struct rule *rule, *next_rule; |
2340 | struct cls_cursor cursor; | |
064af421 | 2341 | |
5ecc9d81 BP |
2342 | cls_cursor_init(&cursor, &p->cls, &fm->cr); |
2343 | CLS_CURSOR_FOR_EACH_SAFE (rule, next_rule, cr, &cursor) { | |
abe529af | 2344 | delete_flow(rule, htons(fm->out_port)); |
5ecc9d81 | 2345 | } |
064af421 BP |
2346 | } |
2347 | ||
79eee1eb BP |
2348 | /* Implements OFPFC_DELETE_STRICT. */ |
2349 | static void | |
3052b0c5 | 2350 | delete_flow_strict(struct ofproto *p, struct flow_mod *fm) |
79eee1eb | 2351 | { |
3052b0c5 | 2352 | struct rule *rule = find_flow_strict(p, fm); |
79eee1eb | 2353 | if (rule) { |
abe529af | 2354 | delete_flow(rule, htons(fm->out_port)); |
79eee1eb BP |
2355 | } |
2356 | } | |
2357 | ||
79eee1eb BP |
2358 | /* Implements core of OFPFC_DELETE and OFPFC_DELETE_STRICT where 'rule' has |
2359 | * been identified as a flow to delete from 'p''s flow table, by deleting the | |
2360 | * flow and sending out a OFPT_FLOW_REMOVED message to any interested | |
2361 | * controller. | |
2362 | * | |
2363 | * Will not delete 'rule' if it is hidden. Will delete 'rule' only if | |
2364 | * 'out_port' is htons(OFPP_NONE) or if 'rule' actually outputs to the | |
2365 | * specified 'out_port'. */ | |
2366 | static void | |
abe529af | 2367 | delete_flow(struct rule *rule, ovs_be16 out_port) |
79eee1eb BP |
2368 | { |
2369 | if (rule_is_hidden(rule)) { | |
2370 | return; | |
2371 | } | |
2372 | ||
2373 | if (out_port != htons(OFPP_NONE) && !rule_has_out_port(rule, out_port)) { | |
2374 | return; | |
2375 | } | |
2376 | ||
abe529af BP |
2377 | ofproto_rule_send_removed(rule, OFPRR_DELETE); |
2378 | ofproto_rule_remove(rule); | |
2379 | } | |
2380 | ||
2381 | static void | |
2382 | ofproto_rule_send_removed(struct rule *rule, uint8_t reason) | |
2383 | { | |
2384 | struct ofputil_flow_removed fr; | |
2385 | ||
2386 | if (rule_is_hidden(rule) || !rule->send_flow_removed) { | |
2387 | return; | |
2388 | } | |
2389 | ||
2390 | fr.rule = rule->cr; | |
2391 | fr.cookie = rule->flow_cookie; | |
2392 | fr.reason = reason; | |
2393 | calc_flow_duration__(rule->created, &fr.duration_sec, &fr.duration_nsec); | |
2394 | fr.idle_timeout = rule->idle_timeout; | |
2395 | rule->ofproto->ofproto_class->rule_get_stats(rule, &fr.packet_count, | |
2396 | &fr.byte_count); | |
2397 | ||
2398 | connmgr_send_flow_removed(rule->ofproto->connmgr, &fr); | |
2399 | } | |
2400 | ||
2401 | /* Sends an OpenFlow "flow removed" message with the given 'reason' (either | |
2402 | * OFPRR_HARD_TIMEOUT or OFPRR_IDLE_TIMEOUT), and then removes 'rule' from its | |
2403 | * ofproto. | |
2404 | * | |
2405 | * ofproto implementation ->run() functions should use this function to expire | |
2406 | * OpenFlow flows. */ | |
2407 | void | |
2408 | ofproto_rule_expire(struct rule *rule, uint8_t reason) | |
2409 | { | |
2410 | assert(reason == OFPRR_HARD_TIMEOUT || reason == OFPRR_IDLE_TIMEOUT); | |
2411 | ofproto_rule_send_removed(rule, reason); | |
2412 | ofproto_rule_remove(rule); | |
79eee1eb BP |
2413 | } |
2414 | \f | |
064af421 | 2415 | static int |
2e4f5fcf | 2416 | handle_flow_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 2417 | { |
64ff1d96 | 2418 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
2e4f5fcf | 2419 | struct flow_mod fm; |
064af421 BP |
2420 | int error; |
2421 | ||
3052b0c5 | 2422 | error = reject_slave_controller(ofconn, "flow_mod"); |
9deba63b BP |
2423 | if (error) { |
2424 | return error; | |
2425 | } | |
3052b0c5 | 2426 | |
f1dd9191 | 2427 | error = ofputil_decode_flow_mod(&fm, oh, ofconn_get_flow_format(ofconn)); |
064af421 BP |
2428 | if (error) { |
2429 | return error; | |
2430 | } | |
2431 | ||
2e4f5fcf BP |
2432 | /* We do not support the emergency flow cache. It will hopefully get |
2433 | * dropped from OpenFlow in the near future. */ | |
2434 | if (fm.flags & OFPFF_EMERG) { | |
49bdc010 JP |
2435 | /* There isn't a good fit for an error code, so just state that the |
2436 | * flow table is full. */ | |
2437 | return ofp_mkerr(OFPET_FLOW_MOD_FAILED, OFPFMFC_ALL_TABLES_FULL); | |
2438 | } | |
2439 | ||
2e4f5fcf | 2440 | switch (fm.command) { |
3052b0c5 | 2441 | case OFPFC_ADD: |
2e4f5fcf | 2442 | return add_flow(ofconn, &fm); |
3052b0c5 BP |
2443 | |
2444 | case OFPFC_MODIFY: | |
2e4f5fcf | 2445 | return modify_flows_loose(ofconn, &fm); |
3052b0c5 BP |
2446 | |
2447 | case OFPFC_MODIFY_STRICT: | |
2e4f5fcf | 2448 | return modify_flow_strict(ofconn, &fm); |
3052b0c5 BP |
2449 | |
2450 | case OFPFC_DELETE: | |
2e4f5fcf | 2451 | delete_flows_loose(p, &fm); |
3052b0c5 BP |
2452 | return 0; |
2453 | ||
2454 | case OFPFC_DELETE_STRICT: | |
2e4f5fcf | 2455 | delete_flow_strict(p, &fm); |
3052b0c5 BP |
2456 | return 0; |
2457 | ||
2458 | default: | |
2459 | return ofp_mkerr(OFPET_FLOW_MOD_FAILED, OFPFMFC_BAD_COMMAND); | |
2460 | } | |
2461 | } | |
2462 | ||
659586ef | 2463 | static int |
d1e2cf21 | 2464 | handle_tun_id_from_cookie(struct ofconn *ofconn, const struct ofp_header *oh) |
659586ef | 2465 | { |
d1e2cf21 BP |
2466 | const struct nxt_tun_id_cookie *msg |
2467 | = (const struct nxt_tun_id_cookie *) oh; | |
f1dd9191 BP |
2468 | enum nx_flow_format flow_format; |
2469 | ||
2470 | flow_format = msg->set ? NXFF_TUN_ID_FROM_COOKIE : NXFF_OPENFLOW10; | |
2471 | ofconn_set_flow_format(ofconn, flow_format); | |
659586ef | 2472 | |
659586ef JG |
2473 | return 0; |
2474 | } | |
2475 | ||
9deba63b | 2476 | static int |
d1e2cf21 | 2477 | handle_role_request(struct ofconn *ofconn, const struct ofp_header *oh) |
9deba63b | 2478 | { |
d1e2cf21 | 2479 | struct nx_role_request *nrr = (struct nx_role_request *) oh; |
9deba63b BP |
2480 | struct nx_role_request *reply; |
2481 | struct ofpbuf *buf; | |
2482 | uint32_t role; | |
2483 | ||
1ce0a5fa | 2484 | if (ofconn_get_type(ofconn) != OFCONN_PRIMARY) { |
19a87e36 | 2485 | VLOG_WARN_RL(&rl, "ignoring role request on service connection"); |
9deba63b BP |
2486 | return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_EPERM); |
2487 | } | |
2488 | ||
2489 | role = ntohl(nrr->role); | |
2490 | if (role != NX_ROLE_OTHER && role != NX_ROLE_MASTER | |
2491 | && role != NX_ROLE_SLAVE) { | |
2492 | VLOG_WARN_RL(&rl, "received request for unknown role %"PRIu32, role); | |
2493 | ||
2494 | /* There's no good error code for this. */ | |
2495 | return ofp_mkerr(OFPET_BAD_REQUEST, -1); | |
2496 | } | |
2497 | ||
1ce0a5fa | 2498 | ofconn_set_role(ofconn, role); |
9deba63b | 2499 | |
d1e2cf21 | 2500 | reply = make_nxmsg_xid(sizeof *reply, NXT_ROLE_REPLY, oh->xid, &buf); |
9deba63b | 2501 | reply->role = htonl(role); |
b0421aa2 | 2502 | ofconn_send_reply(ofconn, buf); |
9deba63b BP |
2503 | |
2504 | return 0; | |
2505 | } | |
2506 | ||
09246b99 | 2507 | static int |
d1e2cf21 | 2508 | handle_nxt_set_flow_format(struct ofconn *ofconn, const struct ofp_header *oh) |
09246b99 | 2509 | { |
d1e2cf21 BP |
2510 | const struct nxt_set_flow_format *msg |
2511 | = (const struct nxt_set_flow_format *) oh; | |
09246b99 | 2512 | uint32_t format; |
09246b99 BP |
2513 | |
2514 | format = ntohl(msg->format); | |
2515 | if (format == NXFF_OPENFLOW10 | |
2516 | || format == NXFF_TUN_ID_FROM_COOKIE | |
2517 | || format == NXFF_NXM) { | |
f1dd9191 | 2518 | ofconn_set_flow_format(ofconn, format); |
09246b99 BP |
2519 | return 0; |
2520 | } else { | |
2521 | return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_EPERM); | |
2522 | } | |
2523 | } | |
2524 | ||
064af421 | 2525 | static int |
d1e2cf21 | 2526 | handle_barrier_request(struct ofconn *ofconn, const struct ofp_header *oh) |
246e61ea JP |
2527 | { |
2528 | struct ofp_header *ob; | |
2529 | struct ofpbuf *buf; | |
2530 | ||
2531 | /* Currently, everything executes synchronously, so we can just | |
2532 | * immediately send the barrier reply. */ | |
2533 | ob = make_openflow_xid(sizeof *ob, OFPT_BARRIER_REPLY, oh->xid, &buf); | |
b0421aa2 | 2534 | ofconn_send_reply(ofconn, buf); |
246e61ea JP |
2535 | return 0; |
2536 | } | |
2537 | ||
d1e2cf21 BP |
2538 | static int |
2539 | handle_openflow__(struct ofconn *ofconn, const struct ofpbuf *msg) | |
064af421 | 2540 | { |
d1e2cf21 BP |
2541 | const struct ofp_header *oh = msg->data; |
2542 | const struct ofputil_msg_type *type; | |
064af421 BP |
2543 | int error; |
2544 | ||
d1e2cf21 BP |
2545 | error = ofputil_decode_msg_type(oh, &type); |
2546 | if (error) { | |
2547 | return error; | |
2548 | } | |
064af421 | 2549 | |
d1e2cf21 BP |
2550 | switch (ofputil_msg_type_code(type)) { |
2551 | /* OpenFlow requests. */ | |
2552 | case OFPUTIL_OFPT_ECHO_REQUEST: | |
2553 | return handle_echo_request(ofconn, oh); | |
064af421 | 2554 | |
d1e2cf21 BP |
2555 | case OFPUTIL_OFPT_FEATURES_REQUEST: |
2556 | return handle_features_request(ofconn, oh); | |
064af421 | 2557 | |
d1e2cf21 BP |
2558 | case OFPUTIL_OFPT_GET_CONFIG_REQUEST: |
2559 | return handle_get_config_request(ofconn, oh); | |
064af421 | 2560 | |
d1e2cf21 BP |
2561 | case OFPUTIL_OFPT_SET_CONFIG: |
2562 | return handle_set_config(ofconn, msg->data); | |
064af421 | 2563 | |
d1e2cf21 BP |
2564 | case OFPUTIL_OFPT_PACKET_OUT: |
2565 | return handle_packet_out(ofconn, oh); | |
064af421 | 2566 | |
d1e2cf21 BP |
2567 | case OFPUTIL_OFPT_PORT_MOD: |
2568 | return handle_port_mod(ofconn, oh); | |
064af421 | 2569 | |
d1e2cf21 | 2570 | case OFPUTIL_OFPT_FLOW_MOD: |
2e4f5fcf | 2571 | return handle_flow_mod(ofconn, oh); |
064af421 | 2572 | |
d1e2cf21 BP |
2573 | case OFPUTIL_OFPT_BARRIER_REQUEST: |
2574 | return handle_barrier_request(ofconn, oh); | |
064af421 | 2575 | |
d1e2cf21 BP |
2576 | /* OpenFlow replies. */ |
2577 | case OFPUTIL_OFPT_ECHO_REPLY: | |
2578 | return 0; | |
246e61ea | 2579 | |
d1e2cf21 | 2580 | /* Nicira extension requests. */ |
d1e2cf21 BP |
2581 | case OFPUTIL_NXT_TUN_ID_FROM_COOKIE: |
2582 | return handle_tun_id_from_cookie(ofconn, oh); | |
2583 | ||
2584 | case OFPUTIL_NXT_ROLE_REQUEST: | |
2585 | return handle_role_request(ofconn, oh); | |
2586 | ||
2587 | case OFPUTIL_NXT_SET_FLOW_FORMAT: | |
2588 | return handle_nxt_set_flow_format(ofconn, oh); | |
2589 | ||
2590 | case OFPUTIL_NXT_FLOW_MOD: | |
2e4f5fcf | 2591 | return handle_flow_mod(ofconn, oh); |
d1e2cf21 BP |
2592 | |
2593 | /* OpenFlow statistics requests. */ | |
2594 | case OFPUTIL_OFPST_DESC_REQUEST: | |
2595 | return handle_desc_stats_request(ofconn, oh); | |
2596 | ||
2597 | case OFPUTIL_OFPST_FLOW_REQUEST: | |
2598 | return handle_flow_stats_request(ofconn, oh); | |
2599 | ||
2600 | case OFPUTIL_OFPST_AGGREGATE_REQUEST: | |
2601 | return handle_aggregate_stats_request(ofconn, oh); | |
2602 | ||
2603 | case OFPUTIL_OFPST_TABLE_REQUEST: | |
2604 | return handle_table_stats_request(ofconn, oh); | |
2605 | ||
2606 | case OFPUTIL_OFPST_PORT_REQUEST: | |
2607 | return handle_port_stats_request(ofconn, oh); | |
2608 | ||
2609 | case OFPUTIL_OFPST_QUEUE_REQUEST: | |
2610 | return handle_queue_stats_request(ofconn, oh); | |
2611 | ||
2612 | /* Nicira extension statistics requests. */ | |
2613 | case OFPUTIL_NXST_FLOW_REQUEST: | |
2614 | return handle_nxst_flow(ofconn, oh); | |
2615 | ||
2616 | case OFPUTIL_NXST_AGGREGATE_REQUEST: | |
2617 | return handle_nxst_aggregate(ofconn, oh); | |
2618 | ||
2619 | case OFPUTIL_INVALID: | |
2620 | case OFPUTIL_OFPT_HELLO: | |
2621 | case OFPUTIL_OFPT_ERROR: | |
2622 | case OFPUTIL_OFPT_FEATURES_REPLY: | |
2623 | case OFPUTIL_OFPT_GET_CONFIG_REPLY: | |
2624 | case OFPUTIL_OFPT_PACKET_IN: | |
2625 | case OFPUTIL_OFPT_FLOW_REMOVED: | |
2626 | case OFPUTIL_OFPT_PORT_STATUS: | |
2627 | case OFPUTIL_OFPT_BARRIER_REPLY: | |
2628 | case OFPUTIL_OFPT_QUEUE_GET_CONFIG_REQUEST: | |
2629 | case OFPUTIL_OFPT_QUEUE_GET_CONFIG_REPLY: | |
2630 | case OFPUTIL_OFPST_DESC_REPLY: | |
2631 | case OFPUTIL_OFPST_FLOW_REPLY: | |
2632 | case OFPUTIL_OFPST_QUEUE_REPLY: | |
2633 | case OFPUTIL_OFPST_PORT_REPLY: | |
2634 | case OFPUTIL_OFPST_TABLE_REPLY: | |
2635 | case OFPUTIL_OFPST_AGGREGATE_REPLY: | |
d1e2cf21 BP |
2636 | case OFPUTIL_NXT_ROLE_REPLY: |
2637 | case OFPUTIL_NXT_FLOW_REMOVED: | |
2638 | case OFPUTIL_NXST_FLOW_REPLY: | |
2639 | case OFPUTIL_NXST_AGGREGATE_REPLY: | |
064af421 BP |
2640 | default: |
2641 | if (VLOG_IS_WARN_ENABLED()) { | |
2642 | char *s = ofp_to_string(oh, ntohs(oh->length), 2); | |
2643 | VLOG_DBG_RL(&rl, "OpenFlow message ignored: %s", s); | |
2644 | free(s); | |
2645 | } | |
d1e2cf21 BP |
2646 | if (oh->type == OFPT_STATS_REQUEST || oh->type == OFPT_STATS_REPLY) { |
2647 | return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_BAD_STAT); | |
2648 | } else { | |
2649 | return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_BAD_TYPE); | |
2650 | } | |
064af421 | 2651 | } |
d1e2cf21 | 2652 | } |
064af421 | 2653 | |
d1e2cf21 BP |
2654 | static void |
2655 | handle_openflow(struct ofconn *ofconn, struct ofpbuf *ofp_msg) | |
2656 | { | |
2657 | int error = handle_openflow__(ofconn, ofp_msg); | |
064af421 BP |
2658 | if (error) { |
2659 | send_error_oh(ofconn, ofp_msg->data, error); | |
2660 | } | |
d1e2cf21 | 2661 | COVERAGE_INC(ofproto_recv_openflow); |
064af421 BP |
2662 | } |
2663 | \f | |
064af421 | 2664 | static uint64_t |
fa60c019 | 2665 | pick_datapath_id(const struct ofproto *ofproto) |
064af421 | 2666 | { |
fa60c019 | 2667 | const struct ofport *port; |
064af421 | 2668 | |
abe529af | 2669 | port = ofproto_get_port(ofproto, OFPP_LOCAL); |
fa60c019 BP |
2670 | if (port) { |
2671 | uint8_t ea[ETH_ADDR_LEN]; | |
2672 | int error; | |
2673 | ||
2674 | error = netdev_get_etheraddr(port->netdev, ea); | |
064af421 BP |
2675 | if (!error) { |
2676 | return eth_addr_to_uint64(ea); | |
2677 | } | |
2678 | VLOG_WARN("could not get MAC address for %s (%s)", | |
fa60c019 | 2679 | netdev_get_name(port->netdev), strerror(error)); |
064af421 | 2680 | } |
fa60c019 | 2681 | return ofproto->fallback_dpid; |
064af421 BP |
2682 | } |
2683 | ||
2684 | static uint64_t | |
2685 | pick_fallback_dpid(void) | |
2686 | { | |
2687 | uint8_t ea[ETH_ADDR_LEN]; | |
70150daf | 2688 | eth_addr_nicira_random(ea); |
064af421 BP |
2689 | return eth_addr_to_uint64(ea); |
2690 | } | |
2691 | \f | |
abe529af BP |
2692 | /* unixctl commands. */ |
2693 | ||
2694 | struct ofproto * | |
2ac6bedd BP |
2695 | ofproto_lookup(const char *name) |
2696 | { | |
2697 | struct ofproto *ofproto; | |
2698 | ||
2699 | HMAP_FOR_EACH_WITH_HASH (ofproto, hmap_node, hash_string(name, 0), | |
2700 | &all_ofprotos) { | |
2701 | if (!strcmp(ofproto->name, name)) { | |
2702 | return ofproto; | |
2703 | } | |
2704 | } | |
2705 | return NULL; | |
2706 | } | |
2707 | ||
7aa697dd BP |
2708 | static void |
2709 | ofproto_unixctl_list(struct unixctl_conn *conn, const char *arg OVS_UNUSED, | |
2710 | void *aux OVS_UNUSED) | |
2711 | { | |
2ac6bedd | 2712 | struct ofproto *ofproto; |
7aa697dd BP |
2713 | struct ds results; |
2714 | ||
2715 | ds_init(&results); | |
2ac6bedd BP |
2716 | HMAP_FOR_EACH (ofproto, hmap_node, &all_ofprotos) { |
2717 | ds_put_format(&results, "%s\n", ofproto->name); | |
7aa697dd BP |
2718 | } |
2719 | unixctl_command_reply(conn, 200, ds_cstr(&results)); | |
2720 | ds_destroy(&results); | |
2721 | } | |
2722 | ||
7aa697dd BP |
2723 | static void |
2724 | ofproto_unixctl_init(void) | |
2725 | { | |
2726 | static bool registered; | |
2727 | if (registered) { | |
2728 | return; | |
2729 | } | |
2730 | registered = true; | |
2731 | ||
2732 | unixctl_command_register("ofproto/list", ofproto_unixctl_list, NULL); | |
7aa697dd | 2733 | } |