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064af421 | 1 | /* |
9075907c | 2 | * Copyright (c) 2009, 2010, 2011, 2012 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> | |
52a90c29 | 24 | #include "bitmap.h" |
10a24935 | 25 | #include "byte-order.h" |
064af421 | 26 | #include "classifier.h" |
19a87e36 | 27 | #include "connmgr.h" |
064af421 | 28 | #include "coverage.h" |
4f2cad2c | 29 | #include "dynamic-string.h" |
ca0f572c BP |
30 | #include "hash.h" |
31 | #include "hmap.h" | |
064af421 | 32 | #include "netdev.h" |
09246b99 | 33 | #include "nx-match.h" |
90bf1e07 | 34 | #include "ofp-errors.h" |
064af421 | 35 | #include "ofp-print.h" |
fa37b408 | 36 | #include "ofp-util.h" |
064af421 | 37 | #include "ofpbuf.h" |
5bee6e26 | 38 | #include "ofproto-provider.h" |
064af421 BP |
39 | #include "openflow/nicira-ext.h" |
40 | #include "openflow/openflow.h" | |
064af421 BP |
41 | #include "packets.h" |
42 | #include "pinsched.h" | |
43 | #include "pktbuf.h" | |
44 | #include "poll-loop.h" | |
064af421 | 45 | #include "shash.h" |
b3c01ed3 | 46 | #include "sset.h" |
064af421 | 47 | #include "timeval.h" |
c4617b3c | 48 | #include "unaligned.h" |
4f2cad2c | 49 | #include "unixctl.h" |
5136ce49 | 50 | #include "vlog.h" |
064af421 | 51 | |
d98e6007 | 52 | VLOG_DEFINE_THIS_MODULE(ofproto); |
064af421 | 53 | |
d76f09ea | 54 | COVERAGE_DEFINE(ofproto_error); |
d76f09ea | 55 | COVERAGE_DEFINE(ofproto_flush); |
d76f09ea | 56 | COVERAGE_DEFINE(ofproto_no_packet_in); |
d76f09ea BP |
57 | COVERAGE_DEFINE(ofproto_packet_out); |
58 | COVERAGE_DEFINE(ofproto_queue_req); | |
59 | COVERAGE_DEFINE(ofproto_recv_openflow); | |
60 | COVERAGE_DEFINE(ofproto_reinit_ports); | |
d76f09ea BP |
61 | COVERAGE_DEFINE(ofproto_uninstallable); |
62 | COVERAGE_DEFINE(ofproto_update_port); | |
63 | ||
7ee20df1 BP |
64 | enum ofproto_state { |
65 | S_OPENFLOW, /* Processing OpenFlow commands. */ | |
66 | S_FLUSH, /* Deleting all flow table rules. */ | |
67 | }; | |
68 | ||
69 | enum ofoperation_type { | |
70 | OFOPERATION_ADD, | |
71 | OFOPERATION_DELETE, | |
72 | OFOPERATION_MODIFY | |
73 | }; | |
74 | ||
75 | /* A single OpenFlow request can execute any number of operations. The | |
76 | * ofopgroup maintain OpenFlow state common to all of the operations, e.g. the | |
77 | * ofconn to which an error reply should be sent if necessary. | |
78 | * | |
79 | * ofproto initiates some operations internally. These operations are still | |
80 | * assigned to groups but will not have an associated ofconn. */ | |
81 | struct ofopgroup { | |
82 | struct ofproto *ofproto; /* Owning ofproto. */ | |
83 | struct list ofproto_node; /* In ofproto's "pending" list. */ | |
84 | struct list ops; /* List of "struct ofoperation"s. */ | |
85 | ||
86 | /* Data needed to send OpenFlow reply on failure or to send a buffered | |
87 | * packet on success. | |
88 | * | |
89 | * If list_is_empty(ofconn_node) then this ofopgroup never had an | |
90 | * associated ofconn or its ofconn's connection dropped after it initiated | |
91 | * the operation. In the latter case 'ofconn' is a wild pointer that | |
92 | * refers to freed memory, so the 'ofconn' member must be used only if | |
93 | * !list_is_empty(ofconn_node). | |
94 | */ | |
95 | struct list ofconn_node; /* In ofconn's list of pending opgroups. */ | |
96 | struct ofconn *ofconn; /* ofconn for reply (but see note above). */ | |
97 | struct ofp_header *request; /* Original request (truncated at 64 bytes). */ | |
98 | uint32_t buffer_id; /* Buffer id from original request. */ | |
99 | int error; /* 0 if no error yet, otherwise error code. */ | |
100 | }; | |
101 | ||
7024dffe BP |
102 | static struct ofopgroup *ofopgroup_create_unattached(struct ofproto *); |
103 | static struct ofopgroup *ofopgroup_create(struct ofproto *, struct ofconn *, | |
104 | const struct ofp_header *, | |
105 | uint32_t buffer_id); | |
7ee20df1 BP |
106 | static void ofopgroup_submit(struct ofopgroup *); |
107 | static void ofopgroup_destroy(struct ofopgroup *); | |
108 | ||
109 | /* A single flow table operation. */ | |
110 | struct ofoperation { | |
111 | struct ofopgroup *group; /* Owning group. */ | |
112 | struct list group_node; /* In ofopgroup's "ops" list. */ | |
113 | struct hmap_node hmap_node; /* In ofproto's "deletions" hmap. */ | |
114 | struct rule *rule; /* Rule being operated upon. */ | |
115 | enum ofoperation_type type; /* Type of operation. */ | |
116 | int status; /* -1 if pending, otherwise 0 or error code. */ | |
117 | struct rule *victim; /* OFOPERATION_ADDING: Replaced rule. */ | |
118 | union ofp_action *actions; /* OFOPERATION_MODIFYING: Replaced actions. */ | |
119 | int n_actions; /* OFOPERATION_MODIFYING: # of old actions. */ | |
120 | ovs_be64 flow_cookie; /* Rule's old flow cookie. */ | |
121 | }; | |
122 | ||
123 | static void ofoperation_create(struct ofopgroup *, struct rule *, | |
124 | enum ofoperation_type); | |
125 | static void ofoperation_destroy(struct ofoperation *); | |
126 | ||
abe529af BP |
127 | static void ofport_destroy__(struct ofport *); |
128 | static void ofport_destroy(struct ofport *); | |
878ae780 | 129 | |
abe529af BP |
130 | static uint64_t pick_datapath_id(const struct ofproto *); |
131 | static uint64_t pick_fallback_dpid(void); | |
064af421 | 132 | |
abe529af | 133 | static void ofproto_destroy__(struct ofproto *); |
064af421 | 134 | |
abe529af BP |
135 | static void ofproto_rule_destroy__(struct rule *); |
136 | static void ofproto_rule_send_removed(struct rule *, uint8_t reason); | |
f29152ca | 137 | |
7ee20df1 BP |
138 | static void ofopgroup_destroy(struct ofopgroup *); |
139 | ||
90bf1e07 BP |
140 | static enum ofperr add_flow(struct ofproto *, struct ofconn *, |
141 | const struct ofputil_flow_mod *, | |
142 | const struct ofp_header *); | |
7ee20df1 | 143 | |
7ee20df1 | 144 | static bool handle_openflow(struct ofconn *, struct ofpbuf *); |
90bf1e07 BP |
145 | static enum ofperr handle_flow_mod__(struct ofproto *, struct ofconn *, |
146 | const struct ofputil_flow_mod *, | |
75a75043 | 147 | const struct ofp_header *); |
f29152ca | 148 | |
abe529af BP |
149 | static void update_port(struct ofproto *, const char *devname); |
150 | static int init_ports(struct ofproto *); | |
151 | static void reinit_ports(struct ofproto *); | |
9197df76 | 152 | static void set_internal_devs_mtu(struct ofproto *); |
f29152ca | 153 | |
abe529af | 154 | static void ofproto_unixctl_init(void); |
f29152ca | 155 | |
abe529af BP |
156 | /* All registered ofproto classes, in probe order. */ |
157 | static const struct ofproto_class **ofproto_classes; | |
158 | static size_t n_ofproto_classes; | |
159 | static size_t allocated_ofproto_classes; | |
7aa697dd | 160 | |
f797957a | 161 | /* Map from datapath name to struct ofproto, for use by unixctl commands. */ |
abe529af | 162 | static struct hmap all_ofprotos = HMAP_INITIALIZER(&all_ofprotos); |
ebe482fd | 163 | |
abe529af | 164 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); |
f29152ca | 165 | |
abe529af BP |
166 | static void |
167 | ofproto_initialize(void) | |
168 | { | |
169 | static bool inited; | |
f29152ca | 170 | |
abe529af BP |
171 | if (!inited) { |
172 | inited = true; | |
173 | ofproto_class_register(&ofproto_dpif_class); | |
174 | } | |
175 | } | |
f29152ca | 176 | |
abe529af BP |
177 | /* 'type' should be a normalized datapath type, as returned by |
178 | * ofproto_normalize_type(). Returns the corresponding ofproto_class | |
179 | * structure, or a null pointer if there is none registered for 'type'. */ | |
180 | static const struct ofproto_class * | |
181 | ofproto_class_find__(const char *type) | |
182 | { | |
183 | size_t i; | |
f29152ca | 184 | |
abe529af BP |
185 | ofproto_initialize(); |
186 | for (i = 0; i < n_ofproto_classes; i++) { | |
187 | const struct ofproto_class *class = ofproto_classes[i]; | |
188 | struct sset types; | |
189 | bool found; | |
064af421 | 190 | |
abe529af BP |
191 | sset_init(&types); |
192 | class->enumerate_types(&types); | |
193 | found = sset_contains(&types, type); | |
194 | sset_destroy(&types); | |
bcf84111 | 195 | |
abe529af BP |
196 | if (found) { |
197 | return class; | |
198 | } | |
199 | } | |
200 | VLOG_WARN("unknown datapath type %s", type); | |
201 | return NULL; | |
202 | } | |
064af421 | 203 | |
abe529af BP |
204 | /* Registers a new ofproto class. After successful registration, new ofprotos |
205 | * of that type can be created using ofproto_create(). */ | |
206 | int | |
207 | ofproto_class_register(const struct ofproto_class *new_class) | |
208 | { | |
209 | size_t i; | |
7aa697dd | 210 | |
abe529af BP |
211 | for (i = 0; i < n_ofproto_classes; i++) { |
212 | if (ofproto_classes[i] == new_class) { | |
213 | return EEXIST; | |
214 | } | |
215 | } | |
064af421 | 216 | |
abe529af BP |
217 | if (n_ofproto_classes >= allocated_ofproto_classes) { |
218 | ofproto_classes = x2nrealloc(ofproto_classes, | |
219 | &allocated_ofproto_classes, | |
220 | sizeof *ofproto_classes); | |
221 | } | |
222 | ofproto_classes[n_ofproto_classes++] = new_class; | |
223 | return 0; | |
224 | } | |
064af421 | 225 | |
abe529af BP |
226 | /* Unregisters a datapath provider. 'type' must have been previously |
227 | * registered and not currently be in use by any ofprotos. After | |
228 | * unregistration new datapaths of that type cannot be opened using | |
229 | * ofproto_create(). */ | |
230 | int | |
231 | ofproto_class_unregister(const struct ofproto_class *class) | |
232 | { | |
233 | size_t i; | |
76ce9432 | 234 | |
abe529af BP |
235 | for (i = 0; i < n_ofproto_classes; i++) { |
236 | if (ofproto_classes[i] == class) { | |
237 | for (i++; i < n_ofproto_classes; i++) { | |
238 | ofproto_classes[i - 1] = ofproto_classes[i]; | |
239 | } | |
240 | n_ofproto_classes--; | |
241 | return 0; | |
242 | } | |
243 | } | |
244 | VLOG_WARN("attempted to unregister an ofproto class that is not " | |
245 | "registered"); | |
246 | return EAFNOSUPPORT; | |
247 | } | |
4a4cdb3b | 248 | |
f79e673f BP |
249 | /* Clears 'types' and enumerates all registered ofproto types into it. The |
250 | * caller must first initialize the sset. */ | |
251 | void | |
252 | ofproto_enumerate_types(struct sset *types) | |
253 | { | |
abe529af | 254 | size_t i; |
064af421 | 255 | |
abe529af BP |
256 | ofproto_initialize(); |
257 | for (i = 0; i < n_ofproto_classes; i++) { | |
258 | ofproto_classes[i]->enumerate_types(types); | |
259 | } | |
f79e673f | 260 | } |
064af421 | 261 | |
f79e673f BP |
262 | /* Returns the fully spelled out name for the given ofproto 'type'. |
263 | * | |
264 | * Normalized type string can be compared with strcmp(). Unnormalized type | |
265 | * string might be the same even if they have different spellings. */ | |
266 | const char * | |
267 | ofproto_normalize_type(const char *type) | |
268 | { | |
abe529af | 269 | return type && type[0] ? type : "system"; |
f79e673f | 270 | } |
064af421 | 271 | |
f79e673f BP |
272 | /* Clears 'names' and enumerates the names of all known created ofprotos with |
273 | * the given 'type'. The caller must first initialize the sset. Returns 0 if | |
274 | * successful, otherwise a positive errno value. | |
275 | * | |
276 | * Some kinds of datapaths might not be practically enumerable. This is not | |
277 | * considered an error. */ | |
278 | int | |
279 | ofproto_enumerate_names(const char *type, struct sset *names) | |
280 | { | |
abe529af BP |
281 | const struct ofproto_class *class = ofproto_class_find__(type); |
282 | return class ? class->enumerate_names(type, names) : EAFNOSUPPORT; | |
283 | } | |
7aa697dd | 284 | |
064af421 | 285 | int |
abe529af | 286 | ofproto_create(const char *datapath_name, const char *datapath_type, |
064af421 BP |
287 | struct ofproto **ofprotop) |
288 | { | |
abe529af | 289 | const struct ofproto_class *class; |
b772ded8 | 290 | struct classifier *table; |
abe529af | 291 | struct ofproto *ofproto; |
073e2a6f | 292 | int n_tables; |
064af421 BP |
293 | int error; |
294 | ||
295 | *ofprotop = NULL; | |
296 | ||
abe529af | 297 | ofproto_initialize(); |
7aa697dd BP |
298 | ofproto_unixctl_init(); |
299 | ||
abe529af BP |
300 | datapath_type = ofproto_normalize_type(datapath_type); |
301 | class = ofproto_class_find__(datapath_type); | |
302 | if (!class) { | |
303 | VLOG_WARN("could not create datapath %s of unknown type %s", | |
304 | datapath_name, datapath_type); | |
305 | return EAFNOSUPPORT; | |
064af421 BP |
306 | } |
307 | ||
abe529af BP |
308 | ofproto = class->alloc(); |
309 | if (!ofproto) { | |
310 | VLOG_ERR("failed to allocate datapath %s of type %s", | |
311 | datapath_name, datapath_type); | |
312 | return ENOMEM; | |
313 | } | |
314 | ||
315 | /* Initialize. */ | |
316 | memset(ofproto, 0, sizeof *ofproto); | |
317 | ofproto->ofproto_class = class; | |
318 | ofproto->name = xstrdup(datapath_name); | |
319 | ofproto->type = xstrdup(datapath_type); | |
320 | hmap_insert(&all_ofprotos, &ofproto->hmap_node, | |
321 | hash_string(ofproto->name, 0)); | |
322 | ofproto->datapath_id = 0; | |
084f5290 SH |
323 | ofproto_set_flow_eviction_threshold(ofproto, |
324 | OFPROTO_FLOW_EVICTON_THRESHOLD_DEFAULT); | |
8402c74b | 325 | ofproto->forward_bpdu = false; |
abe529af BP |
326 | ofproto->fallback_dpid = pick_fallback_dpid(); |
327 | ofproto->mfr_desc = xstrdup(DEFAULT_MFR_DESC); | |
328 | ofproto->hw_desc = xstrdup(DEFAULT_HW_DESC); | |
329 | ofproto->sw_desc = xstrdup(DEFAULT_SW_DESC); | |
330 | ofproto->serial_desc = xstrdup(DEFAULT_SERIAL_DESC); | |
331 | ofproto->dp_desc = xstrdup(DEFAULT_DP_DESC); | |
7257b535 | 332 | ofproto->frag_handling = OFPC_FRAG_NORMAL; |
abe529af BP |
333 | hmap_init(&ofproto->ports); |
334 | shash_init(&ofproto->port_by_name); | |
6c1491fb BP |
335 | ofproto->tables = NULL; |
336 | ofproto->n_tables = 0; | |
abe529af | 337 | ofproto->connmgr = connmgr_create(ofproto, datapath_name, datapath_name); |
7ee20df1 BP |
338 | ofproto->state = S_OPENFLOW; |
339 | list_init(&ofproto->pending); | |
dd5616b3 | 340 | ofproto->n_pending = 0; |
7ee20df1 | 341 | hmap_init(&ofproto->deletions); |
52a90c29 BP |
342 | ofproto->vlan_bitmap = NULL; |
343 | ofproto->vlans_changed = false; | |
abe529af | 344 | |
073e2a6f | 345 | error = ofproto->ofproto_class->construct(ofproto, &n_tables); |
19a87e36 | 346 | if (error) { |
abe529af BP |
347 | VLOG_ERR("failed to open datapath %s: %s", |
348 | datapath_name, strerror(error)); | |
349 | ofproto_destroy__(ofproto); | |
19a87e36 BP |
350 | return error; |
351 | } | |
073e2a6f BP |
352 | |
353 | assert(n_tables >= 1 && n_tables <= 255); | |
354 | ofproto->n_tables = n_tables; | |
355 | ofproto->tables = xmalloc(n_tables * sizeof *ofproto->tables); | |
b772ded8 BP |
356 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
357 | classifier_init(table); | |
073e2a6f | 358 | } |
19a87e36 | 359 | |
abe529af BP |
360 | ofproto->datapath_id = pick_datapath_id(ofproto); |
361 | VLOG_INFO("using datapath ID %016"PRIx64, ofproto->datapath_id); | |
362 | init_ports(ofproto); | |
7aa697dd | 363 | |
abe529af | 364 | *ofprotop = ofproto; |
064af421 BP |
365 | return 0; |
366 | } | |
367 | ||
368 | void | |
369 | ofproto_set_datapath_id(struct ofproto *p, uint64_t datapath_id) | |
370 | { | |
371 | uint64_t old_dpid = p->datapath_id; | |
fa60c019 | 372 | p->datapath_id = datapath_id ? datapath_id : pick_datapath_id(p); |
064af421 | 373 | if (p->datapath_id != old_dpid) { |
b123cc3c | 374 | VLOG_INFO("datapath ID changed to %016"PRIx64, p->datapath_id); |
76ce9432 BP |
375 | |
376 | /* Force all active connections to reconnect, since there is no way to | |
377 | * notify a controller that the datapath ID has changed. */ | |
fa05809b | 378 | ofproto_reconnect_controllers(p); |
064af421 BP |
379 | } |
380 | } | |
381 | ||
76ce9432 BP |
382 | void |
383 | ofproto_set_controllers(struct ofproto *p, | |
384 | const struct ofproto_controller *controllers, | |
385 | size_t n_controllers) | |
386 | { | |
19a87e36 | 387 | connmgr_set_controllers(p->connmgr, controllers, n_controllers); |
064af421 BP |
388 | } |
389 | ||
31681a5d JP |
390 | void |
391 | ofproto_set_fail_mode(struct ofproto *p, enum ofproto_fail_mode fail_mode) | |
392 | { | |
19a87e36 | 393 | connmgr_set_fail_mode(p->connmgr, fail_mode); |
31681a5d JP |
394 | } |
395 | ||
fa05809b BP |
396 | /* Drops the connections between 'ofproto' and all of its controllers, forcing |
397 | * them to reconnect. */ | |
398 | void | |
399 | ofproto_reconnect_controllers(struct ofproto *ofproto) | |
400 | { | |
19a87e36 | 401 | connmgr_reconnect(ofproto->connmgr); |
917e50e1 BP |
402 | } |
403 | ||
404 | /* Sets the 'n' TCP port addresses in 'extras' as ones to which 'ofproto''s | |
405 | * in-band control should guarantee access, in the same way that in-band | |
406 | * control guarantees access to OpenFlow controllers. */ | |
407 | void | |
408 | ofproto_set_extra_in_band_remotes(struct ofproto *ofproto, | |
409 | const struct sockaddr_in *extras, size_t n) | |
410 | { | |
19a87e36 | 411 | connmgr_set_extra_in_band_remotes(ofproto->connmgr, extras, n); |
917e50e1 BP |
412 | } |
413 | ||
b1da6250 BP |
414 | /* Sets the OpenFlow queue used by flows set up by in-band control on |
415 | * 'ofproto' to 'queue_id'. If 'queue_id' is negative, then in-band control | |
416 | * flows will use the default queue. */ | |
417 | void | |
418 | ofproto_set_in_band_queue(struct ofproto *ofproto, int queue_id) | |
419 | { | |
19a87e36 | 420 | connmgr_set_in_band_queue(ofproto->connmgr, queue_id); |
b1da6250 BP |
421 | } |
422 | ||
084f5290 SH |
423 | /* Sets the number of flows at which eviction from the kernel flow table |
424 | * will occur. */ | |
425 | void | |
426 | ofproto_set_flow_eviction_threshold(struct ofproto *ofproto, unsigned threshold) | |
427 | { | |
428 | if (threshold < OFPROTO_FLOW_EVICTION_THRESHOLD_MIN) { | |
429 | ofproto->flow_eviction_threshold = OFPROTO_FLOW_EVICTION_THRESHOLD_MIN; | |
430 | } else { | |
431 | ofproto->flow_eviction_threshold = threshold; | |
432 | } | |
433 | } | |
434 | ||
b53055f4 | 435 | /* If forward_bpdu is true, the NORMAL action will forward frames with |
8402c74b SS |
436 | * reserved (e.g. STP) destination Ethernet addresses. if forward_bpdu is false, |
437 | * the NORMAL action will drop these frames. */ | |
438 | void | |
439 | ofproto_set_forward_bpdu(struct ofproto *ofproto, bool forward_bpdu) | |
440 | { | |
441 | bool old_val = ofproto->forward_bpdu; | |
442 | ofproto->forward_bpdu = forward_bpdu; | |
443 | if (old_val != ofproto->forward_bpdu) { | |
444 | if (ofproto->ofproto_class->forward_bpdu_changed) { | |
445 | ofproto->ofproto_class->forward_bpdu_changed(ofproto); | |
446 | } | |
b53055f4 | 447 | } |
8402c74b SS |
448 | } |
449 | ||
064af421 BP |
450 | void |
451 | ofproto_set_desc(struct ofproto *p, | |
5a719c38 JP |
452 | const char *mfr_desc, const char *hw_desc, |
453 | const char *sw_desc, const char *serial_desc, | |
8abc4ed7 | 454 | const char *dp_desc) |
064af421 | 455 | { |
5a719c38 JP |
456 | struct ofp_desc_stats *ods; |
457 | ||
458 | if (mfr_desc) { | |
459 | if (strlen(mfr_desc) >= sizeof ods->mfr_desc) { | |
460 | VLOG_WARN("truncating mfr_desc, must be less than %zu characters", | |
461 | sizeof ods->mfr_desc); | |
462 | } | |
463 | free(p->mfr_desc); | |
464 | p->mfr_desc = xstrdup(mfr_desc); | |
064af421 | 465 | } |
5a719c38 JP |
466 | if (hw_desc) { |
467 | if (strlen(hw_desc) >= sizeof ods->hw_desc) { | |
468 | VLOG_WARN("truncating hw_desc, must be less than %zu characters", | |
469 | sizeof ods->hw_desc); | |
470 | } | |
471 | free(p->hw_desc); | |
472 | p->hw_desc = xstrdup(hw_desc); | |
064af421 | 473 | } |
5a719c38 JP |
474 | if (sw_desc) { |
475 | if (strlen(sw_desc) >= sizeof ods->sw_desc) { | |
476 | VLOG_WARN("truncating sw_desc, must be less than %zu characters", | |
477 | sizeof ods->sw_desc); | |
478 | } | |
479 | free(p->sw_desc); | |
480 | p->sw_desc = xstrdup(sw_desc); | |
481 | } | |
482 | if (serial_desc) { | |
483 | if (strlen(serial_desc) >= sizeof ods->serial_num) { | |
484 | VLOG_WARN("truncating serial_desc, must be less than %zu " | |
485 | "characters", | |
486 | sizeof ods->serial_num); | |
487 | } | |
488 | free(p->serial_desc); | |
489 | p->serial_desc = xstrdup(serial_desc); | |
064af421 | 490 | } |
8abc4ed7 | 491 | if (dp_desc) { |
5a719c38 JP |
492 | if (strlen(dp_desc) >= sizeof ods->dp_desc) { |
493 | VLOG_WARN("truncating dp_desc, must be less than %zu characters", | |
494 | sizeof ods->dp_desc); | |
495 | } | |
8abc4ed7 JP |
496 | free(p->dp_desc); |
497 | p->dp_desc = xstrdup(dp_desc); | |
498 | } | |
064af421 BP |
499 | } |
500 | ||
064af421 | 501 | int |
81e2083f | 502 | ofproto_set_snoops(struct ofproto *ofproto, const struct sset *snoops) |
064af421 | 503 | { |
19a87e36 | 504 | return connmgr_set_snoops(ofproto->connmgr, snoops); |
064af421 BP |
505 | } |
506 | ||
507 | int | |
0193b2af JG |
508 | ofproto_set_netflow(struct ofproto *ofproto, |
509 | const struct netflow_options *nf_options) | |
064af421 | 510 | { |
abe529af BP |
511 | if (nf_options && sset_is_empty(&nf_options->collectors)) { |
512 | nf_options = NULL; | |
513 | } | |
514 | ||
515 | if (ofproto->ofproto_class->set_netflow) { | |
516 | return ofproto->ofproto_class->set_netflow(ofproto, nf_options); | |
064af421 | 517 | } else { |
abe529af | 518 | return nf_options ? EOPNOTSUPP : 0; |
064af421 BP |
519 | } |
520 | } | |
521 | ||
abe529af | 522 | int |
72b06300 BP |
523 | ofproto_set_sflow(struct ofproto *ofproto, |
524 | const struct ofproto_sflow_options *oso) | |
525 | { | |
abe529af BP |
526 | if (oso && sset_is_empty(&oso->targets)) { |
527 | oso = NULL; | |
528 | } | |
72b06300 | 529 | |
abe529af BP |
530 | if (ofproto->ofproto_class->set_sflow) { |
531 | return ofproto->ofproto_class->set_sflow(ofproto, oso); | |
72b06300 | 532 | } else { |
abe529af | 533 | return oso ? EOPNOTSUPP : 0; |
72b06300 BP |
534 | } |
535 | } | |
e7934396 | 536 | \f |
21f7563c JP |
537 | /* Spanning Tree Protocol (STP) configuration. */ |
538 | ||
539 | /* Configures STP on 'ofproto' using the settings defined in 's'. If | |
540 | * 's' is NULL, disables STP. | |
541 | * | |
542 | * Returns 0 if successful, otherwise a positive errno value. */ | |
543 | int | |
544 | ofproto_set_stp(struct ofproto *ofproto, | |
545 | const struct ofproto_stp_settings *s) | |
546 | { | |
547 | return (ofproto->ofproto_class->set_stp | |
548 | ? ofproto->ofproto_class->set_stp(ofproto, s) | |
549 | : EOPNOTSUPP); | |
550 | } | |
551 | ||
552 | /* Retrieves STP status of 'ofproto' and stores it in 's'. If the | |
553 | * 'enabled' member of 's' is false, then the other members are not | |
554 | * meaningful. | |
555 | * | |
556 | * Returns 0 if successful, otherwise a positive errno value. */ | |
557 | int | |
558 | ofproto_get_stp_status(struct ofproto *ofproto, | |
559 | struct ofproto_stp_status *s) | |
560 | { | |
561 | return (ofproto->ofproto_class->get_stp_status | |
562 | ? ofproto->ofproto_class->get_stp_status(ofproto, s) | |
563 | : EOPNOTSUPP); | |
564 | } | |
565 | ||
566 | /* Configures STP on 'ofp_port' of 'ofproto' using the settings defined | |
567 | * in 's'. The caller is responsible for assigning STP port numbers | |
568 | * (using the 'port_num' member in the range of 1 through 255, inclusive) | |
569 | * and ensuring there are no duplicates. If the 's' is NULL, then STP | |
570 | * is disabled on the port. | |
571 | * | |
572 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
573 | int | |
574 | ofproto_port_set_stp(struct ofproto *ofproto, uint16_t ofp_port, | |
575 | const struct ofproto_port_stp_settings *s) | |
576 | { | |
577 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
578 | if (!ofport) { | |
579 | VLOG_WARN("%s: cannot configure STP on nonexistent port %"PRIu16, | |
580 | ofproto->name, ofp_port); | |
581 | return ENODEV; | |
582 | } | |
583 | ||
584 | return (ofproto->ofproto_class->set_stp_port | |
585 | ? ofproto->ofproto_class->set_stp_port(ofport, s) | |
586 | : EOPNOTSUPP); | |
587 | } | |
588 | ||
589 | /* Retrieves STP port status of 'ofp_port' on 'ofproto' and stores it in | |
590 | * 's'. If the 'enabled' member in 's' is false, then the other members | |
591 | * are not meaningful. | |
592 | * | |
593 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
594 | int | |
595 | ofproto_port_get_stp_status(struct ofproto *ofproto, uint16_t ofp_port, | |
596 | struct ofproto_port_stp_status *s) | |
597 | { | |
598 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
599 | if (!ofport) { | |
600 | VLOG_WARN("%s: cannot get STP status on nonexistent port %"PRIu16, | |
601 | ofproto->name, ofp_port); | |
602 | return ENODEV; | |
603 | } | |
604 | ||
605 | return (ofproto->ofproto_class->get_stp_port_status | |
606 | ? ofproto->ofproto_class->get_stp_port_status(ofport, s) | |
607 | : EOPNOTSUPP); | |
608 | } | |
609 | \f | |
8b36f51e EJ |
610 | /* Queue DSCP configuration. */ |
611 | ||
612 | /* Registers meta-data associated with the 'n_qdscp' Qualities of Service | |
613 | * 'queues' attached to 'ofport'. This data is not intended to be sufficient | |
614 | * to implement QoS. Instead, it is used to implement features which require | |
615 | * knowledge of what queues exist on a port, and some basic information about | |
616 | * them. | |
617 | * | |
618 | * Returns 0 if successful, otherwise a positive errno value. */ | |
619 | int | |
620 | ofproto_port_set_queues(struct ofproto *ofproto, uint16_t ofp_port, | |
621 | const struct ofproto_port_queue *queues, | |
622 | size_t n_queues) | |
623 | { | |
624 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
625 | ||
626 | if (!ofport) { | |
627 | VLOG_WARN("%s: cannot set queues on nonexistent port %"PRIu16, | |
628 | ofproto->name, ofp_port); | |
629 | return ENODEV; | |
630 | } | |
631 | ||
632 | return (ofproto->ofproto_class->set_queues | |
633 | ? ofproto->ofproto_class->set_queues(ofport, queues, n_queues) | |
634 | : EOPNOTSUPP); | |
635 | } | |
636 | \f | |
e7934396 BP |
637 | /* Connectivity Fault Management configuration. */ |
638 | ||
892815f5 | 639 | /* Clears the CFM configuration from 'ofp_port' on 'ofproto'. */ |
e7934396 | 640 | void |
892815f5 | 641 | ofproto_port_clear_cfm(struct ofproto *ofproto, uint16_t ofp_port) |
e7934396 | 642 | { |
abe529af BP |
643 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
644 | if (ofport && ofproto->ofproto_class->set_cfm) { | |
a5610457 | 645 | ofproto->ofproto_class->set_cfm(ofport, NULL); |
e7934396 BP |
646 | } |
647 | } | |
72b06300 | 648 | |
892815f5 | 649 | /* Configures connectivity fault management on 'ofp_port' in 'ofproto'. Takes |
93b8df38 EJ |
650 | * basic configuration from the configuration members in 'cfm', and the remote |
651 | * maintenance point ID from remote_mpid. Ignores the statistics members of | |
652 | * 'cfm'. | |
e7934396 | 653 | * |
892815f5 | 654 | * This function has no effect if 'ofproto' does not have a port 'ofp_port'. */ |
e7934396 | 655 | void |
892815f5 | 656 | ofproto_port_set_cfm(struct ofproto *ofproto, uint16_t ofp_port, |
a5610457 | 657 | const struct cfm_settings *s) |
e7934396 BP |
658 | { |
659 | struct ofport *ofport; | |
abe529af | 660 | int error; |
e7934396 | 661 | |
abe529af | 662 | ofport = ofproto_get_port(ofproto, ofp_port); |
e7934396 | 663 | if (!ofport) { |
892815f5 BP |
664 | VLOG_WARN("%s: cannot configure CFM on nonexistent port %"PRIu16, |
665 | ofproto->name, ofp_port); | |
e7934396 BP |
666 | return; |
667 | } | |
668 | ||
93b8df38 EJ |
669 | /* XXX: For configuration simplicity, we only support one remote_mpid |
670 | * outside of the CFM module. It's not clear if this is the correct long | |
671 | * term solution or not. */ | |
abe529af | 672 | error = (ofproto->ofproto_class->set_cfm |
a5610457 | 673 | ? ofproto->ofproto_class->set_cfm(ofport, s) |
abe529af BP |
674 | : EOPNOTSUPP); |
675 | if (error) { | |
676 | VLOG_WARN("%s: CFM configuration on port %"PRIu16" (%s) failed (%s)", | |
677 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), | |
678 | strerror(error)); | |
e7934396 | 679 | } |
e7934396 | 680 | } |
e7934396 | 681 | |
fa066f01 BP |
682 | /* Checks the status of LACP negotiation for 'ofp_port' within ofproto. |
683 | * Returns 1 if LACP partner information for 'ofp_port' is up-to-date, | |
684 | * 0 if LACP partner information is not current (generally indicating a | |
685 | * connectivity problem), or -1 if LACP is not enabled on 'ofp_port'. */ | |
686 | int | |
687 | ofproto_port_is_lacp_current(struct ofproto *ofproto, uint16_t ofp_port) | |
688 | { | |
abe529af BP |
689 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
690 | return (ofport && ofproto->ofproto_class->port_is_lacp_current | |
691 | ? ofproto->ofproto_class->port_is_lacp_current(ofport) | |
fa066f01 | 692 | : -1); |
e7934396 | 693 | } |
e7934396 | 694 | \f |
fa066f01 | 695 | /* Bundles. */ |
e7934396 | 696 | |
abe529af BP |
697 | /* Registers a "bundle" associated with client data pointer 'aux' in 'ofproto'. |
698 | * A bundle is the same concept as a Port in OVSDB, that is, it consists of one | |
699 | * or more "slave" devices (Interfaces, in OVSDB) along with a VLAN | |
700 | * configuration plus, if there is more than one slave, a bonding | |
701 | * configuration. | |
702 | * | |
703 | * If 'aux' is already registered then this function updates its configuration | |
704 | * to 's'. Otherwise, this function registers a new bundle. | |
705 | * | |
706 | * Bundles only affect the NXAST_AUTOPATH action and output to the OFPP_NORMAL | |
707 | * port. */ | |
708 | int | |
709 | ofproto_bundle_register(struct ofproto *ofproto, void *aux, | |
710 | const struct ofproto_bundle_settings *s) | |
fa066f01 | 711 | { |
abe529af BP |
712 | return (ofproto->ofproto_class->bundle_set |
713 | ? ofproto->ofproto_class->bundle_set(ofproto, aux, s) | |
714 | : EOPNOTSUPP); | |
fa066f01 BP |
715 | } |
716 | ||
abe529af BP |
717 | /* Unregisters the bundle registered on 'ofproto' with auxiliary data 'aux'. |
718 | * If no such bundle has been registered, this has no effect. */ | |
719 | int | |
720 | ofproto_bundle_unregister(struct ofproto *ofproto, void *aux) | |
e7934396 | 721 | { |
abe529af | 722 | return ofproto_bundle_register(ofproto, aux, NULL); |
e7934396 | 723 | } |
fa066f01 | 724 | |
e7934396 | 725 | \f |
abe529af BP |
726 | /* Registers a mirror associated with client data pointer 'aux' in 'ofproto'. |
727 | * If 'aux' is already registered then this function updates its configuration | |
c06bba01 | 728 | * to 's'. Otherwise, this function registers a new mirror. */ |
abe529af BP |
729 | int |
730 | ofproto_mirror_register(struct ofproto *ofproto, void *aux, | |
731 | const struct ofproto_mirror_settings *s) | |
064af421 | 732 | { |
abe529af BP |
733 | return (ofproto->ofproto_class->mirror_set |
734 | ? ofproto->ofproto_class->mirror_set(ofproto, aux, s) | |
735 | : EOPNOTSUPP); | |
064af421 BP |
736 | } |
737 | ||
abe529af BP |
738 | /* Unregisters the mirror registered on 'ofproto' with auxiliary data 'aux'. |
739 | * If no mirror has been registered, this has no effect. */ | |
740 | int | |
741 | ofproto_mirror_unregister(struct ofproto *ofproto, void *aux) | |
064af421 | 742 | { |
abe529af | 743 | return ofproto_mirror_register(ofproto, aux, NULL); |
064af421 BP |
744 | } |
745 | ||
9d24de3b JP |
746 | /* Retrieves statistics from mirror associated with client data pointer |
747 | * 'aux' in 'ofproto'. Stores packet and byte counts in 'packets' and | |
748 | * 'bytes', respectively. If a particular counters is not supported, | |
749 | * the appropriate argument is set to UINT64_MAX. */ | |
750 | int | |
751 | ofproto_mirror_get_stats(struct ofproto *ofproto, void *aux, | |
752 | uint64_t *packets, uint64_t *bytes) | |
753 | { | |
754 | if (!ofproto->ofproto_class->mirror_get_stats) { | |
755 | *packets = *bytes = UINT64_MAX; | |
756 | return EOPNOTSUPP; | |
757 | } | |
758 | ||
759 | return ofproto->ofproto_class->mirror_get_stats(ofproto, aux, | |
760 | packets, bytes); | |
761 | } | |
762 | ||
abe529af BP |
763 | /* Configures the VLANs whose bits are set to 1 in 'flood_vlans' as VLANs on |
764 | * which all packets are flooded, instead of using MAC learning. If | |
765 | * 'flood_vlans' is NULL, then MAC learning applies to all VLANs. | |
766 | * | |
767 | * Flood VLANs affect only the treatment of packets output to the OFPP_NORMAL | |
768 | * port. */ | |
769 | int | |
770 | ofproto_set_flood_vlans(struct ofproto *ofproto, unsigned long *flood_vlans) | |
abdfe474 | 771 | { |
abe529af BP |
772 | return (ofproto->ofproto_class->set_flood_vlans |
773 | ? ofproto->ofproto_class->set_flood_vlans(ofproto, flood_vlans) | |
774 | : EOPNOTSUPP); | |
abdfe474 JP |
775 | } |
776 | ||
abe529af BP |
777 | /* Returns true if 'aux' is a registered bundle that is currently in use as the |
778 | * output for a mirror. */ | |
779 | bool | |
b4affc74 | 780 | ofproto_is_mirror_output_bundle(const struct ofproto *ofproto, void *aux) |
abe529af BP |
781 | { |
782 | return (ofproto->ofproto_class->is_mirror_output_bundle | |
783 | ? ofproto->ofproto_class->is_mirror_output_bundle(ofproto, aux) | |
784 | : false); | |
785 | } | |
786 | \f | |
81e2083f BP |
787 | bool |
788 | ofproto_has_snoops(const struct ofproto *ofproto) | |
789 | { | |
790 | return connmgr_has_snoops(ofproto->connmgr); | |
791 | } | |
792 | ||
064af421 | 793 | void |
81e2083f | 794 | ofproto_get_snoops(const struct ofproto *ofproto, struct sset *snoops) |
064af421 | 795 | { |
19a87e36 | 796 | connmgr_get_snoops(ofproto->connmgr, snoops); |
064af421 BP |
797 | } |
798 | ||
7ee20df1 BP |
799 | static void |
800 | ofproto_flush__(struct ofproto *ofproto) | |
801 | { | |
802 | struct classifier *table; | |
803 | struct ofopgroup *group; | |
804 | ||
805 | if (ofproto->ofproto_class->flush) { | |
806 | ofproto->ofproto_class->flush(ofproto); | |
807 | } | |
808 | ||
7024dffe | 809 | group = ofopgroup_create_unattached(ofproto); |
b772ded8 | 810 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
7ee20df1 BP |
811 | struct rule *rule, *next_rule; |
812 | struct cls_cursor cursor; | |
813 | ||
814 | cls_cursor_init(&cursor, table, NULL); | |
815 | CLS_CURSOR_FOR_EACH_SAFE (rule, next_rule, cr, &cursor) { | |
816 | if (!rule->pending) { | |
817 | ofoperation_create(group, rule, OFOPERATION_DELETE); | |
818 | classifier_remove(table, &rule->cr); | |
819 | ofproto->ofproto_class->rule_destruct(rule); | |
820 | } | |
821 | } | |
822 | } | |
823 | ofopgroup_submit(group); | |
824 | } | |
825 | ||
abe529af BP |
826 | static void |
827 | ofproto_destroy__(struct ofproto *ofproto) | |
828 | { | |
b772ded8 | 829 | struct classifier *table; |
6c1491fb | 830 | |
7ee20df1 | 831 | assert(list_is_empty(&ofproto->pending)); |
dd5616b3 | 832 | assert(!ofproto->n_pending); |
7ee20df1 | 833 | |
abe529af | 834 | connmgr_destroy(ofproto->connmgr); |
fa066f01 | 835 | |
abe529af BP |
836 | hmap_remove(&all_ofprotos, &ofproto->hmap_node); |
837 | free(ofproto->name); | |
955a7127 | 838 | free(ofproto->type); |
abe529af BP |
839 | free(ofproto->mfr_desc); |
840 | free(ofproto->hw_desc); | |
841 | free(ofproto->sw_desc); | |
842 | free(ofproto->serial_desc); | |
843 | free(ofproto->dp_desc); | |
abe529af BP |
844 | hmap_destroy(&ofproto->ports); |
845 | shash_destroy(&ofproto->port_by_name); | |
6c1491fb | 846 | |
b772ded8 BP |
847 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
848 | assert(classifier_is_empty(table)); | |
849 | classifier_destroy(table); | |
6c1491fb BP |
850 | } |
851 | free(ofproto->tables); | |
fa066f01 | 852 | |
7ee20df1 BP |
853 | hmap_destroy(&ofproto->deletions); |
854 | ||
52a90c29 BP |
855 | free(ofproto->vlan_bitmap); |
856 | ||
abe529af BP |
857 | ofproto->ofproto_class->dealloc(ofproto); |
858 | } | |
fa066f01 | 859 | |
064af421 BP |
860 | void |
861 | ofproto_destroy(struct ofproto *p) | |
862 | { | |
ca0f572c | 863 | struct ofport *ofport, *next_ofport; |
064af421 BP |
864 | |
865 | if (!p) { | |
866 | return; | |
867 | } | |
868 | ||
7ee20df1 | 869 | ofproto_flush__(p); |
4e8e4213 | 870 | HMAP_FOR_EACH_SAFE (ofport, next_ofport, hmap_node, &p->ports) { |
abe529af | 871 | ofport_destroy(ofport); |
064af421 | 872 | } |
064af421 | 873 | |
abe529af BP |
874 | p->ofproto_class->destruct(p); |
875 | ofproto_destroy__(p); | |
064af421 BP |
876 | } |
877 | ||
abe529af BP |
878 | /* Destroys the datapath with the respective 'name' and 'type'. With the Linux |
879 | * kernel datapath, for example, this destroys the datapath in the kernel, and | |
880 | * with the netdev-based datapath, it tears down the data structures that | |
881 | * represent the datapath. | |
882 | * | |
883 | * The datapath should not be currently open as an ofproto. */ | |
064af421 | 884 | int |
abe529af | 885 | ofproto_delete(const char *name, const char *type) |
064af421 | 886 | { |
abe529af BP |
887 | const struct ofproto_class *class = ofproto_class_find__(type); |
888 | return (!class ? EAFNOSUPPORT | |
889 | : !class->del ? EACCES | |
890 | : class->del(type, name)); | |
064af421 BP |
891 | } |
892 | ||
e9e28be3 BP |
893 | static void |
894 | process_port_change(struct ofproto *ofproto, int error, char *devname) | |
895 | { | |
896 | if (error == ENOBUFS) { | |
897 | reinit_ports(ofproto); | |
898 | } else if (!error) { | |
899 | update_port(ofproto, devname); | |
900 | free(devname); | |
901 | } | |
902 | } | |
903 | ||
064af421 | 904 | int |
abe529af | 905 | ofproto_run(struct ofproto *p) |
064af421 | 906 | { |
031d8bff | 907 | struct ofport *ofport; |
064af421 BP |
908 | char *devname; |
909 | int error; | |
064af421 | 910 | |
abe529af | 911 | error = p->ofproto_class->run(p); |
5fcc0d00 BP |
912 | if (error && error != EAGAIN) { |
913 | VLOG_ERR_RL(&rl, "%s: run failed (%s)", p->name, strerror(error)); | |
149f577a JG |
914 | } |
915 | ||
5bf0e941 BP |
916 | if (p->ofproto_class->port_poll) { |
917 | while ((error = p->ofproto_class->port_poll(p, &devname)) != EAGAIN) { | |
918 | process_port_change(p, error, devname); | |
064af421 | 919 | } |
e9e28be3 | 920 | } |
031d8bff EJ |
921 | |
922 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
923 | unsigned int change_seq = netdev_change_seq(ofport->netdev); | |
924 | if (ofport->change_seq != change_seq) { | |
925 | ofport->change_seq = change_seq; | |
926 | update_port(p, netdev_get_name(ofport->netdev)); | |
927 | } | |
064af421 BP |
928 | } |
929 | ||
7ee20df1 BP |
930 | |
931 | switch (p->state) { | |
932 | case S_OPENFLOW: | |
933 | connmgr_run(p->connmgr, handle_openflow); | |
934 | break; | |
935 | ||
936 | case S_FLUSH: | |
937 | connmgr_run(p->connmgr, NULL); | |
938 | ofproto_flush__(p); | |
939 | if (list_is_empty(&p->pending) && hmap_is_empty(&p->deletions)) { | |
940 | connmgr_flushed(p->connmgr); | |
941 | p->state = S_OPENFLOW; | |
942 | } | |
943 | break; | |
944 | ||
945 | default: | |
946 | NOT_REACHED(); | |
947 | } | |
064af421 | 948 | |
5fcc0d00 BP |
949 | return error; |
950 | } | |
951 | ||
952 | /* Performs periodic activity required by 'ofproto' that needs to be done | |
953 | * with the least possible latency. | |
954 | * | |
955 | * It makes sense to call this function a couple of times per poll loop, to | |
956 | * provide a significant performance boost on some benchmarks with the | |
957 | * ofproto-dpif implementation. */ | |
958 | int | |
959 | ofproto_run_fast(struct ofproto *p) | |
960 | { | |
961 | int error; | |
962 | ||
963 | error = p->ofproto_class->run_fast ? p->ofproto_class->run_fast(p) : 0; | |
964 | if (error && error != EAGAIN) { | |
965 | VLOG_ERR_RL(&rl, "%s: fastpath run failed (%s)", | |
966 | p->name, strerror(error)); | |
967 | } | |
968 | return error; | |
064af421 BP |
969 | } |
970 | ||
971 | void | |
972 | ofproto_wait(struct ofproto *p) | |
973 | { | |
031d8bff EJ |
974 | struct ofport *ofport; |
975 | ||
abe529af | 976 | p->ofproto_class->wait(p); |
5bf0e941 BP |
977 | if (p->ofproto_class->port_poll_wait) { |
978 | p->ofproto_class->port_poll_wait(p); | |
e7934396 | 979 | } |
031d8bff EJ |
980 | |
981 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
982 | if (ofport->change_seq != netdev_change_seq(ofport->netdev)) { | |
983 | poll_immediate_wake(); | |
984 | } | |
985 | } | |
7ee20df1 BP |
986 | |
987 | switch (p->state) { | |
988 | case S_OPENFLOW: | |
989 | connmgr_wait(p->connmgr, true); | |
990 | break; | |
991 | ||
992 | case S_FLUSH: | |
993 | connmgr_wait(p->connmgr, false); | |
994 | if (list_is_empty(&p->pending) && hmap_is_empty(&p->deletions)) { | |
995 | poll_immediate_wake(); | |
996 | } | |
997 | break; | |
998 | } | |
064af421 BP |
999 | } |
1000 | ||
064af421 BP |
1001 | bool |
1002 | ofproto_is_alive(const struct ofproto *p) | |
1003 | { | |
19a87e36 | 1004 | return connmgr_has_controllers(p->connmgr); |
064af421 BP |
1005 | } |
1006 | ||
bffc0589 | 1007 | void |
2cdcb898 | 1008 | ofproto_get_ofproto_controller_info(const struct ofproto *ofproto, |
bffc0589 AE |
1009 | struct shash *info) |
1010 | { | |
19a87e36 | 1011 | connmgr_get_controller_info(ofproto->connmgr, info); |
bffc0589 AE |
1012 | } |
1013 | ||
1014 | void | |
1015 | ofproto_free_ofproto_controller_info(struct shash *info) | |
1016 | { | |
72ba2ed3 | 1017 | connmgr_free_controller_info(info); |
bffc0589 AE |
1018 | } |
1019 | ||
b5827b24 BP |
1020 | /* Makes a deep copy of 'old' into 'port'. */ |
1021 | void | |
1022 | ofproto_port_clone(struct ofproto_port *port, const struct ofproto_port *old) | |
1023 | { | |
1024 | port->name = xstrdup(old->name); | |
1025 | port->type = xstrdup(old->type); | |
1026 | port->ofp_port = old->ofp_port; | |
1027 | } | |
1028 | ||
1029 | /* Frees memory allocated to members of 'ofproto_port'. | |
3a6ccc8c | 1030 | * |
b5827b24 BP |
1031 | * Do not call this function on an ofproto_port obtained from |
1032 | * ofproto_port_dump_next(): that function retains ownership of the data in the | |
1033 | * ofproto_port. */ | |
1034 | void | |
1035 | ofproto_port_destroy(struct ofproto_port *ofproto_port) | |
1036 | { | |
1037 | free(ofproto_port->name); | |
1038 | free(ofproto_port->type); | |
1039 | } | |
1040 | ||
b5827b24 | 1041 | /* Initializes 'dump' to begin dumping the ports in an ofproto. |
3a6ccc8c | 1042 | * |
b5827b24 BP |
1043 | * This function provides no status indication. An error status for the entire |
1044 | * dump operation is provided when it is completed by calling | |
1045 | * ofproto_port_dump_done(). | |
1046 | */ | |
1047 | void | |
1048 | ofproto_port_dump_start(struct ofproto_port_dump *dump, | |
1049 | const struct ofproto *ofproto) | |
1050 | { | |
abe529af BP |
1051 | dump->ofproto = ofproto; |
1052 | dump->error = ofproto->ofproto_class->port_dump_start(ofproto, | |
1053 | &dump->state); | |
b5827b24 BP |
1054 | } |
1055 | ||
1056 | /* Attempts to retrieve another port from 'dump', which must have been created | |
1057 | * with ofproto_port_dump_start(). On success, stores a new ofproto_port into | |
1058 | * 'port' and returns true. On failure, returns false. | |
1059 | * | |
1060 | * Failure might indicate an actual error or merely that the last port has been | |
1061 | * dumped. An error status for the entire dump operation is provided when it | |
1062 | * is completed by calling ofproto_port_dump_done(). | |
1063 | * | |
1064 | * The ofproto owns the data stored in 'port'. It will remain valid until at | |
1065 | * least the next time 'dump' is passed to ofproto_port_dump_next() or | |
1066 | * ofproto_port_dump_done(). */ | |
1067 | bool | |
1068 | ofproto_port_dump_next(struct ofproto_port_dump *dump, | |
1069 | struct ofproto_port *port) | |
1070 | { | |
abe529af BP |
1071 | const struct ofproto *ofproto = dump->ofproto; |
1072 | ||
1073 | if (dump->error) { | |
1074 | return false; | |
1075 | } | |
b5827b24 | 1076 | |
abe529af BP |
1077 | dump->error = ofproto->ofproto_class->port_dump_next(ofproto, dump->state, |
1078 | port); | |
1079 | if (dump->error) { | |
1080 | ofproto->ofproto_class->port_dump_done(ofproto, dump->state); | |
1081 | return false; | |
b5827b24 | 1082 | } |
abe529af | 1083 | return true; |
b5827b24 BP |
1084 | } |
1085 | ||
1086 | /* Completes port table dump operation 'dump', which must have been created | |
1087 | * with ofproto_port_dump_start(). Returns 0 if the dump operation was | |
1088 | * error-free, otherwise a positive errno value describing the problem. */ | |
3a6ccc8c | 1089 | int |
b5827b24 | 1090 | ofproto_port_dump_done(struct ofproto_port_dump *dump) |
3a6ccc8c | 1091 | { |
abe529af BP |
1092 | const struct ofproto *ofproto = dump->ofproto; |
1093 | if (!dump->error) { | |
1094 | dump->error = ofproto->ofproto_class->port_dump_done(ofproto, | |
1095 | dump->state); | |
1096 | } | |
1097 | return dump->error == EOF ? 0 : dump->error; | |
b5827b24 BP |
1098 | } |
1099 | ||
1100 | /* Attempts to add 'netdev' as a port on 'ofproto'. If successful, returns 0 | |
892815f5 | 1101 | * and sets '*ofp_portp' to the new port's OpenFlow port number (if 'ofp_portp' |
b5827b24 BP |
1102 | * is non-null). On failure, returns a positive errno value and sets |
1103 | * '*ofp_portp' to OFPP_NONE (if 'ofp_portp' is non-null). */ | |
1104 | int | |
1105 | ofproto_port_add(struct ofproto *ofproto, struct netdev *netdev, | |
1106 | uint16_t *ofp_portp) | |
1107 | { | |
abe529af | 1108 | uint16_t ofp_port; |
3a6ccc8c BP |
1109 | int error; |
1110 | ||
abe529af | 1111 | error = ofproto->ofproto_class->port_add(ofproto, netdev, &ofp_port); |
1fa24dea BP |
1112 | if (!error) { |
1113 | update_port(ofproto, netdev_get_name(netdev)); | |
1114 | } | |
b5827b24 | 1115 | if (ofp_portp) { |
abe529af | 1116 | *ofp_portp = error ? OFPP_NONE : ofp_port; |
3a6ccc8c BP |
1117 | } |
1118 | return error; | |
1119 | } | |
1120 | ||
b5827b24 BP |
1121 | /* Looks up a port named 'devname' in 'ofproto'. On success, returns 0 and |
1122 | * initializes '*port' appropriately; on failure, returns a positive errno | |
1123 | * value. | |
1124 | * | |
abe529af | 1125 | * The caller owns the data in 'ofproto_port' and must free it with |
b5827b24 BP |
1126 | * ofproto_port_destroy() when it is no longer needed. */ |
1127 | int | |
1128 | ofproto_port_query_by_name(const struct ofproto *ofproto, const char *devname, | |
1129 | struct ofproto_port *port) | |
a4e2e1f2 | 1130 | { |
b5827b24 BP |
1131 | int error; |
1132 | ||
abe529af BP |
1133 | error = ofproto->ofproto_class->port_query_by_name(ofproto, devname, port); |
1134 | if (error) { | |
1135 | memset(port, 0, sizeof *port); | |
b5827b24 BP |
1136 | } |
1137 | return error; | |
a4e2e1f2 EJ |
1138 | } |
1139 | ||
b5827b24 | 1140 | /* Deletes port number 'ofp_port' from the datapath for 'ofproto'. |
3a6ccc8c | 1141 | * Returns 0 if successful, otherwise a positive errno. */ |
064af421 | 1142 | int |
b5827b24 | 1143 | ofproto_port_del(struct ofproto *ofproto, uint16_t ofp_port) |
064af421 | 1144 | { |
abe529af | 1145 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1264ec95 | 1146 | const char *name = ofport ? netdev_get_name(ofport->netdev) : "<unknown>"; |
3cf10406 | 1147 | int error; |
cdee00fd | 1148 | |
abe529af | 1149 | error = ofproto->ofproto_class->port_del(ofproto, ofp_port); |
892815f5 | 1150 | if (!error && ofport) { |
1264ec95 BP |
1151 | /* 'name' is the netdev's name and update_port() is going to close the |
1152 | * netdev. Just in case update_port() refers to 'name' after it | |
3a6ccc8c BP |
1153 | * destroys 'ofport', make a copy of it around the update_port() |
1154 | * call. */ | |
1155 | char *devname = xstrdup(name); | |
1156 | update_port(ofproto, devname); | |
1157 | free(devname); | |
3cf10406 BP |
1158 | } |
1159 | return error; | |
064af421 BP |
1160 | } |
1161 | ||
6c1491fb | 1162 | /* Adds a flow to OpenFlow flow table 0 in 'p' that matches 'cls_rule' and |
fa8b054f BP |
1163 | * performs the 'n_actions' actions in 'actions'. The new flow will not |
1164 | * timeout. | |
1165 | * | |
1166 | * If cls_rule->priority is in the range of priorities supported by OpenFlow | |
1167 | * (0...65535, inclusive) then the flow will be visible to OpenFlow | |
1168 | * controllers; otherwise, it will be hidden. | |
1169 | * | |
6c1491fb BP |
1170 | * The caller retains ownership of 'cls_rule' and 'actions'. |
1171 | * | |
1172 | * This is a helper function for in-band control and fail-open. */ | |
064af421 | 1173 | void |
7ee20df1 | 1174 | ofproto_add_flow(struct ofproto *ofproto, const struct cls_rule *cls_rule, |
fa8b054f | 1175 | const union ofp_action *actions, size_t n_actions) |
064af421 | 1176 | { |
7ee20df1 BP |
1177 | const struct rule *rule; |
1178 | ||
1179 | rule = rule_from_cls_rule(classifier_find_rule_exactly( | |
1180 | &ofproto->tables[0], cls_rule)); | |
1181 | if (!rule || !ofputil_actions_equal(rule->actions, rule->n_actions, | |
1182 | actions, n_actions)) { | |
a9a2da38 | 1183 | struct ofputil_flow_mod fm; |
7ee20df1 BP |
1184 | |
1185 | memset(&fm, 0, sizeof fm); | |
1186 | fm.cr = *cls_rule; | |
1187 | fm.buffer_id = UINT32_MAX; | |
1188 | fm.actions = (union ofp_action *) actions; | |
1189 | fm.n_actions = n_actions; | |
1190 | add_flow(ofproto, NULL, &fm, NULL); | |
1191 | } | |
064af421 BP |
1192 | } |
1193 | ||
75a75043 | 1194 | /* Executes the flow modification specified in 'fm'. Returns 0 on success, an |
90bf1e07 BP |
1195 | * OFPERR_* OpenFlow error code on failure, or OFPROTO_POSTPONE if the |
1196 | * operation cannot be initiated now but may be retried later. | |
75a75043 BP |
1197 | * |
1198 | * This is a helper function for in-band control and fail-open. */ | |
1199 | int | |
1200 | ofproto_flow_mod(struct ofproto *ofproto, const struct ofputil_flow_mod *fm) | |
1201 | { | |
1202 | return handle_flow_mod__(ofproto, NULL, fm, NULL); | |
1203 | } | |
1204 | ||
6c1491fb BP |
1205 | /* Searches for a rule with matching criteria exactly equal to 'target' in |
1206 | * ofproto's table 0 and, if it finds one, deletes it. | |
1207 | * | |
1208 | * This is a helper function for in-band control and fail-open. */ | |
7ee20df1 | 1209 | bool |
cf3fad8a | 1210 | ofproto_delete_flow(struct ofproto *ofproto, const struct cls_rule *target) |
064af421 BP |
1211 | { |
1212 | struct rule *rule; | |
1213 | ||
6c1491fb BP |
1214 | rule = rule_from_cls_rule(classifier_find_rule_exactly( |
1215 | &ofproto->tables[0], target)); | |
7ee20df1 BP |
1216 | if (!rule) { |
1217 | /* No such rule -> success. */ | |
1218 | return true; | |
1219 | } else if (rule->pending) { | |
1220 | /* An operation on the rule is already pending -> failure. | |
1221 | * Caller must retry later if it's important. */ | |
1222 | return false; | |
1223 | } else { | |
1224 | /* Initiate deletion -> success. */ | |
7024dffe | 1225 | struct ofopgroup *group = ofopgroup_create_unattached(ofproto); |
7ee20df1 BP |
1226 | ofoperation_create(group, rule, OFOPERATION_DELETE); |
1227 | classifier_remove(&ofproto->tables[rule->table_id], &rule->cr); | |
1228 | rule->ofproto->ofproto_class->rule_destruct(rule); | |
1229 | ofopgroup_submit(group); | |
1230 | return true; | |
bcf84111 | 1231 | } |
5ecc9d81 | 1232 | |
142e1f5c BP |
1233 | } |
1234 | ||
7ee20df1 BP |
1235 | /* Starts the process of deleting all of the flows from all of ofproto's flow |
1236 | * tables and then reintroducing the flows required by in-band control and | |
1237 | * fail-open. The process will complete in a later call to ofproto_run(). */ | |
142e1f5c BP |
1238 | void |
1239 | ofproto_flush_flows(struct ofproto *ofproto) | |
1240 | { | |
7ee20df1 BP |
1241 | COVERAGE_INC(ofproto_flush); |
1242 | ofproto->state = S_FLUSH; | |
064af421 BP |
1243 | } |
1244 | \f | |
1245 | static void | |
1246 | reinit_ports(struct ofproto *p) | |
1247 | { | |
abe529af | 1248 | struct ofproto_port_dump dump; |
b3c01ed3 | 1249 | struct sset devnames; |
064af421 | 1250 | struct ofport *ofport; |
abe529af | 1251 | struct ofproto_port ofproto_port; |
b3c01ed3 | 1252 | const char *devname; |
064af421 | 1253 | |
898bf89d JP |
1254 | COVERAGE_INC(ofproto_reinit_ports); |
1255 | ||
b3c01ed3 | 1256 | sset_init(&devnames); |
4e8e4213 | 1257 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { |
1264ec95 | 1258 | sset_add(&devnames, netdev_get_name(ofport->netdev)); |
064af421 | 1259 | } |
abe529af BP |
1260 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { |
1261 | sset_add(&devnames, ofproto_port.name); | |
064af421 | 1262 | } |
064af421 | 1263 | |
b3c01ed3 BP |
1264 | SSET_FOR_EACH (devname, &devnames) { |
1265 | update_port(p, devname); | |
064af421 | 1266 | } |
b3c01ed3 | 1267 | sset_destroy(&devnames); |
064af421 BP |
1268 | } |
1269 | ||
abe529af BP |
1270 | /* Opens and returns a netdev for 'ofproto_port', or a null pointer if the |
1271 | * netdev cannot be opened. On success, also fills in 'opp'. */ | |
b33951b8 | 1272 | static struct netdev * |
abe529af | 1273 | ofport_open(const struct ofproto_port *ofproto_port, struct ofp_phy_port *opp) |
064af421 | 1274 | { |
118c4676 | 1275 | uint32_t curr, advertised, supported, peer; |
064af421 | 1276 | enum netdev_flags flags; |
064af421 | 1277 | struct netdev *netdev; |
064af421 BP |
1278 | int error; |
1279 | ||
18812dff | 1280 | error = netdev_open(ofproto_port->name, ofproto_port->type, &netdev); |
064af421 BP |
1281 | if (error) { |
1282 | VLOG_WARN_RL(&rl, "ignoring port %s (%"PRIu16") because netdev %s " | |
1283 | "cannot be opened (%s)", | |
abe529af BP |
1284 | ofproto_port->name, ofproto_port->ofp_port, |
1285 | ofproto_port->name, strerror(error)); | |
064af421 BP |
1286 | return NULL; |
1287 | } | |
1288 | ||
064af421 | 1289 | netdev_get_flags(netdev, &flags); |
118c4676 | 1290 | netdev_get_features(netdev, &curr, &advertised, &supported, &peer); |
064af421 | 1291 | |
abe529af | 1292 | opp->port_no = htons(ofproto_port->ofp_port); |
b33951b8 | 1293 | netdev_get_etheraddr(netdev, opp->hw_addr); |
abe529af | 1294 | ovs_strzcpy(opp->name, ofproto_port->name, sizeof opp->name); |
118c4676 BP |
1295 | opp->config = flags & NETDEV_UP ? 0 : htonl(OFPPC_PORT_DOWN); |
1296 | opp->state = netdev_get_carrier(netdev) ? 0 : htonl(OFPPS_LINK_DOWN); | |
1297 | opp->curr = htonl(curr); | |
1298 | opp->advertised = htonl(advertised); | |
1299 | opp->supported = htonl(supported); | |
1300 | opp->peer = htonl(peer); | |
1301 | ||
b33951b8 | 1302 | return netdev; |
064af421 BP |
1303 | } |
1304 | ||
b33951b8 BP |
1305 | /* Returns true if most fields of 'a' and 'b' are equal. Differences in name, |
1306 | * port number, and 'config' bits other than OFPPC_PORT_DOWN are | |
1307 | * disregarded. */ | |
1308 | static bool | |
1309 | ofport_equal(const struct ofp_phy_port *a, const struct ofp_phy_port *b) | |
064af421 | 1310 | { |
064af421 | 1311 | BUILD_ASSERT_DECL(sizeof *a == 48); /* Detect ofp_phy_port changes. */ |
b33951b8 | 1312 | return (!memcmp(a->hw_addr, b->hw_addr, sizeof a->hw_addr) |
064af421 | 1313 | && a->state == b->state |
118c4676 | 1314 | && !((a->config ^ b->config) & htonl(OFPPC_PORT_DOWN)) |
064af421 BP |
1315 | && a->curr == b->curr |
1316 | && a->advertised == b->advertised | |
1317 | && a->supported == b->supported | |
1318 | && a->peer == b->peer); | |
1319 | } | |
1320 | ||
b33951b8 BP |
1321 | /* Adds an ofport to 'p' initialized based on the given 'netdev' and 'opp'. |
1322 | * The caller must ensure that 'p' does not have a conflicting ofport (that is, | |
1323 | * one with the same name or port number). */ | |
064af421 | 1324 | static void |
b33951b8 BP |
1325 | ofport_install(struct ofproto *p, |
1326 | struct netdev *netdev, const struct ofp_phy_port *opp) | |
064af421 | 1327 | { |
b33951b8 BP |
1328 | const char *netdev_name = netdev_get_name(netdev); |
1329 | struct ofport *ofport; | |
9197df76 | 1330 | int dev_mtu; |
abe529af | 1331 | int error; |
72b06300 | 1332 | |
b33951b8 | 1333 | /* Create ofport. */ |
abe529af BP |
1334 | ofport = p->ofproto_class->port_alloc(); |
1335 | if (!ofport) { | |
1336 | error = ENOMEM; | |
1337 | goto error; | |
1338 | } | |
0f7d71a5 | 1339 | ofport->ofproto = p; |
b33951b8 | 1340 | ofport->netdev = netdev; |
031d8bff | 1341 | ofport->change_seq = netdev_change_seq(netdev); |
b33951b8 | 1342 | ofport->opp = *opp; |
abe529af | 1343 | ofport->ofp_port = ntohs(opp->port_no); |
b33951b8 BP |
1344 | |
1345 | /* Add port to 'p'. */ | |
abe529af | 1346 | hmap_insert(&p->ports, &ofport->hmap_node, hash_int(ofport->ofp_port, 0)); |
72b06300 | 1347 | shash_add(&p->port_by_name, netdev_name, ofport); |
abe529af | 1348 | |
9197df76 JP |
1349 | if (!netdev_get_mtu(netdev, &dev_mtu)) { |
1350 | set_internal_devs_mtu(p); | |
1351 | ofport->mtu = dev_mtu; | |
1352 | } else { | |
1353 | ofport->mtu = 0; | |
1354 | } | |
1355 | ||
abe529af BP |
1356 | /* Let the ofproto_class initialize its private data. */ |
1357 | error = p->ofproto_class->port_construct(ofport); | |
1358 | if (error) { | |
1359 | goto error; | |
1360 | } | |
1361 | connmgr_send_port_status(p->connmgr, opp, OFPPR_ADD); | |
1362 | return; | |
1363 | ||
1364 | error: | |
1365 | VLOG_WARN_RL(&rl, "%s: could not add port %s (%s)", | |
1366 | p->name, netdev_name, strerror(error)); | |
1367 | if (ofport) { | |
1368 | ofport_destroy__(ofport); | |
1369 | } else { | |
1370 | netdev_close(netdev); | |
72b06300 | 1371 | } |
064af421 BP |
1372 | } |
1373 | ||
b33951b8 | 1374 | /* Removes 'ofport' from 'p' and destroys it. */ |
064af421 | 1375 | static void |
0f7d71a5 | 1376 | ofport_remove(struct ofport *ofport) |
064af421 | 1377 | { |
fa066f01 BP |
1378 | connmgr_send_port_status(ofport->ofproto->connmgr, &ofport->opp, |
1379 | OFPPR_DELETE); | |
abe529af | 1380 | ofport_destroy(ofport); |
b33951b8 BP |
1381 | } |
1382 | ||
1383 | /* If 'ofproto' contains an ofport named 'name', removes it from 'ofproto' and | |
1384 | * destroys it. */ | |
1385 | static void | |
1386 | ofport_remove_with_name(struct ofproto *ofproto, const char *name) | |
1387 | { | |
1388 | struct ofport *port = shash_find_data(&ofproto->port_by_name, name); | |
1389 | if (port) { | |
0f7d71a5 | 1390 | ofport_remove(port); |
b33951b8 BP |
1391 | } |
1392 | } | |
1393 | ||
38775ab5 | 1394 | /* Updates 'port' with new 'opp' description. |
b33951b8 BP |
1395 | * |
1396 | * Does not handle a name or port number change. The caller must implement | |
1397 | * such a change as a delete followed by an add. */ | |
1398 | static void | |
abe529af | 1399 | ofport_modified(struct ofport *port, struct ofp_phy_port *opp) |
b33951b8 BP |
1400 | { |
1401 | memcpy(port->opp.hw_addr, opp->hw_addr, ETH_ADDR_LEN); | |
118c4676 BP |
1402 | port->opp.config = ((port->opp.config & ~htonl(OFPPC_PORT_DOWN)) |
1403 | | (opp->config & htonl(OFPPC_PORT_DOWN))); | |
b33951b8 BP |
1404 | port->opp.state = opp->state; |
1405 | port->opp.curr = opp->curr; | |
1406 | port->opp.advertised = opp->advertised; | |
1407 | port->opp.supported = opp->supported; | |
1408 | port->opp.peer = opp->peer; | |
1409 | ||
abe529af | 1410 | connmgr_send_port_status(port->ofproto->connmgr, &port->opp, OFPPR_MODIFY); |
064af421 BP |
1411 | } |
1412 | ||
5a2dfd47 JP |
1413 | /* Update OpenFlow 'state' in 'port' and notify controller. */ |
1414 | void | |
1415 | ofproto_port_set_state(struct ofport *port, ovs_be32 state) | |
1416 | { | |
1417 | if (port->opp.state != state) { | |
1418 | port->opp.state = state; | |
1419 | connmgr_send_port_status(port->ofproto->connmgr, &port->opp, | |
1420 | OFPPR_MODIFY); | |
1421 | } | |
1422 | } | |
1423 | ||
abe529af BP |
1424 | void |
1425 | ofproto_port_unregister(struct ofproto *ofproto, uint16_t ofp_port) | |
e7934396 | 1426 | { |
abe529af BP |
1427 | struct ofport *port = ofproto_get_port(ofproto, ofp_port); |
1428 | if (port) { | |
52a90c29 BP |
1429 | if (port->ofproto->ofproto_class->set_realdev) { |
1430 | port->ofproto->ofproto_class->set_realdev(port, 0, 0); | |
1431 | } | |
b308140a JP |
1432 | if (port->ofproto->ofproto_class->set_stp_port) { |
1433 | port->ofproto->ofproto_class->set_stp_port(port, NULL); | |
1434 | } | |
abe529af | 1435 | if (port->ofproto->ofproto_class->set_cfm) { |
a5610457 | 1436 | port->ofproto->ofproto_class->set_cfm(port, NULL); |
abe529af BP |
1437 | } |
1438 | if (port->ofproto->ofproto_class->bundle_remove) { | |
1439 | port->ofproto->ofproto_class->bundle_remove(port); | |
e7934396 BP |
1440 | } |
1441 | } | |
1442 | } | |
1443 | ||
1444 | static void | |
abe529af | 1445 | ofport_destroy__(struct ofport *port) |
e7934396 | 1446 | { |
abe529af BP |
1447 | struct ofproto *ofproto = port->ofproto; |
1448 | const char *name = netdev_get_name(port->netdev); | |
fa066f01 | 1449 | |
abe529af BP |
1450 | hmap_remove(&ofproto->ports, &port->hmap_node); |
1451 | shash_delete(&ofproto->port_by_name, | |
1452 | shash_find(&ofproto->port_by_name, name)); | |
fa066f01 | 1453 | |
abe529af BP |
1454 | netdev_close(port->netdev); |
1455 | ofproto->ofproto_class->port_dealloc(port); | |
e7934396 BP |
1456 | } |
1457 | ||
064af421 | 1458 | static void |
abe529af | 1459 | ofport_destroy(struct ofport *port) |
064af421 | 1460 | { |
fa066f01 | 1461 | if (port) { |
abe529af BP |
1462 | port->ofproto->ofproto_class->port_destruct(port); |
1463 | ofport_destroy__(port); | |
1464 | } | |
064af421 BP |
1465 | } |
1466 | ||
abe529af BP |
1467 | struct ofport * |
1468 | ofproto_get_port(const struct ofproto *ofproto, uint16_t ofp_port) | |
ca0f572c BP |
1469 | { |
1470 | struct ofport *port; | |
1471 | ||
4e8e4213 | 1472 | HMAP_FOR_EACH_IN_BUCKET (port, hmap_node, |
abe529af BP |
1473 | hash_int(ofp_port, 0), &ofproto->ports) { |
1474 | if (port->ofp_port == ofp_port) { | |
ca0f572c BP |
1475 | return port; |
1476 | } | |
1477 | } | |
1478 | return NULL; | |
1479 | } | |
1480 | ||
6527c598 PS |
1481 | int |
1482 | ofproto_port_get_stats(const struct ofport *port, struct netdev_stats *stats) | |
1483 | { | |
1484 | struct ofproto *ofproto = port->ofproto; | |
1485 | int error; | |
1486 | ||
1487 | if (ofproto->ofproto_class->port_get_stats) { | |
1488 | error = ofproto->ofproto_class->port_get_stats(port, stats); | |
1489 | } else { | |
1490 | error = EOPNOTSUPP; | |
1491 | } | |
1492 | ||
1493 | return error; | |
1494 | } | |
1495 | ||
064af421 | 1496 | static void |
b33951b8 | 1497 | update_port(struct ofproto *ofproto, const char *name) |
064af421 | 1498 | { |
abe529af | 1499 | struct ofproto_port ofproto_port; |
b33951b8 BP |
1500 | struct ofp_phy_port opp; |
1501 | struct netdev *netdev; | |
1502 | struct ofport *port; | |
064af421 BP |
1503 | |
1504 | COVERAGE_INC(ofproto_update_port); | |
c874dc6d | 1505 | |
b33951b8 | 1506 | /* Fetch 'name''s location and properties from the datapath. */ |
abe529af BP |
1507 | netdev = (!ofproto_port_query_by_name(ofproto, name, &ofproto_port) |
1508 | ? ofport_open(&ofproto_port, &opp) | |
b33951b8 BP |
1509 | : NULL); |
1510 | if (netdev) { | |
abe529af | 1511 | port = ofproto_get_port(ofproto, ofproto_port.ofp_port); |
b33951b8 | 1512 | if (port && !strcmp(netdev_get_name(port->netdev), name)) { |
e65942a0 | 1513 | struct netdev *old_netdev = port->netdev; |
9197df76 | 1514 | int dev_mtu; |
e65942a0 | 1515 | |
b33951b8 BP |
1516 | /* 'name' hasn't changed location. Any properties changed? */ |
1517 | if (!ofport_equal(&port->opp, &opp)) { | |
abe529af BP |
1518 | ofport_modified(port, &opp); |
1519 | } | |
1520 | ||
9197df76 JP |
1521 | /* If this is a non-internal port and the MTU changed, check |
1522 | * if the datapath's MTU needs to be updated. */ | |
1523 | if (strcmp(netdev_get_type(netdev), "internal") | |
1524 | && !netdev_get_mtu(netdev, &dev_mtu) | |
1525 | && port->mtu != dev_mtu) { | |
1526 | set_internal_devs_mtu(ofproto); | |
1527 | port->mtu = dev_mtu; | |
1528 | } | |
1529 | ||
e65942a0 BP |
1530 | /* Install the newly opened netdev in case it has changed. |
1531 | * Don't close the old netdev yet in case port_modified has to | |
1532 | * remove a retained reference to it.*/ | |
abe529af | 1533 | port->netdev = netdev; |
031d8bff | 1534 | port->change_seq = netdev_change_seq(netdev); |
abe529af BP |
1535 | |
1536 | if (port->ofproto->ofproto_class->port_modified) { | |
1537 | port->ofproto->ofproto_class->port_modified(port); | |
b33951b8 | 1538 | } |
e65942a0 BP |
1539 | |
1540 | netdev_close(old_netdev); | |
b33951b8 BP |
1541 | } else { |
1542 | /* If 'port' is nonnull then its name differs from 'name' and thus | |
1543 | * we should delete it. If we think there's a port named 'name' | |
1544 | * then its port number must be wrong now so delete it too. */ | |
1545 | if (port) { | |
0f7d71a5 | 1546 | ofport_remove(port); |
b33951b8 BP |
1547 | } |
1548 | ofport_remove_with_name(ofproto, name); | |
1549 | ofport_install(ofproto, netdev, &opp); | |
c874dc6d | 1550 | } |
b33951b8 BP |
1551 | } else { |
1552 | /* Any port named 'name' is gone now. */ | |
1553 | ofport_remove_with_name(ofproto, name); | |
c874dc6d | 1554 | } |
abe529af | 1555 | ofproto_port_destroy(&ofproto_port); |
064af421 BP |
1556 | } |
1557 | ||
1558 | static int | |
1559 | init_ports(struct ofproto *p) | |
1560 | { | |
abe529af BP |
1561 | struct ofproto_port_dump dump; |
1562 | struct ofproto_port ofproto_port; | |
1563 | ||
1564 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { | |
1565 | uint16_t ofp_port = ofproto_port.ofp_port; | |
1566 | if (ofproto_get_port(p, ofp_port)) { | |
1567 | VLOG_WARN_RL(&rl, "ignoring duplicate port %"PRIu16" in datapath", | |
1568 | ofp_port); | |
1569 | } else if (shash_find(&p->port_by_name, ofproto_port.name)) { | |
1570 | VLOG_WARN_RL(&rl, "ignoring duplicate device %s in datapath", | |
1571 | ofproto_port.name); | |
1572 | } else { | |
b33951b8 BP |
1573 | struct ofp_phy_port opp; |
1574 | struct netdev *netdev; | |
1575 | ||
abe529af | 1576 | netdev = ofport_open(&ofproto_port, &opp); |
b33951b8 BP |
1577 | if (netdev) { |
1578 | ofport_install(p, netdev, &opp); | |
064af421 BP |
1579 | } |
1580 | } | |
1581 | } | |
b0ec0f27 | 1582 | |
064af421 BP |
1583 | return 0; |
1584 | } | |
9197df76 JP |
1585 | |
1586 | /* Find the minimum MTU of all non-datapath devices attached to 'p'. | |
1587 | * Returns ETH_PAYLOAD_MAX or the minimum of the ports. */ | |
1588 | static int | |
1589 | find_min_mtu(struct ofproto *p) | |
1590 | { | |
1591 | struct ofport *ofport; | |
1592 | int mtu = 0; | |
1593 | ||
1594 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
1595 | struct netdev *netdev = ofport->netdev; | |
1596 | int dev_mtu; | |
1597 | ||
1598 | /* Skip any internal ports, since that's what we're trying to | |
1599 | * set. */ | |
1600 | if (!strcmp(netdev_get_type(netdev), "internal")) { | |
1601 | continue; | |
1602 | } | |
1603 | ||
1604 | if (netdev_get_mtu(netdev, &dev_mtu)) { | |
1605 | continue; | |
1606 | } | |
1607 | if (!mtu || dev_mtu < mtu) { | |
1608 | mtu = dev_mtu; | |
1609 | } | |
1610 | } | |
1611 | ||
1612 | return mtu ? mtu: ETH_PAYLOAD_MAX; | |
1613 | } | |
1614 | ||
1615 | /* Set the MTU of all datapath devices on 'p' to the minimum of the | |
1616 | * non-datapath ports. */ | |
1617 | static void | |
1618 | set_internal_devs_mtu(struct ofproto *p) | |
1619 | { | |
1620 | struct ofport *ofport; | |
1621 | int mtu = find_min_mtu(p); | |
1622 | ||
1623 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
1624 | struct netdev *netdev = ofport->netdev; | |
1625 | ||
1626 | if (!strcmp(netdev_get_type(netdev), "internal")) { | |
1627 | netdev_set_mtu(netdev, mtu); | |
1628 | } | |
1629 | } | |
1630 | } | |
064af421 | 1631 | \f |
064af421 | 1632 | static void |
abe529af | 1633 | ofproto_rule_destroy__(struct rule *rule) |
064af421 BP |
1634 | { |
1635 | free(rule->actions); | |
abe529af | 1636 | rule->ofproto->ofproto_class->rule_dealloc(rule); |
064af421 BP |
1637 | } |
1638 | ||
7ee20df1 BP |
1639 | /* This function allows an ofproto implementation to destroy any rules that |
1640 | * remain when its ->destruct() function is called. The caller must have | |
1641 | * already uninitialized any derived members of 'rule' (step 5 described in the | |
5bee6e26 JP |
1642 | * large comment in ofproto/ofproto-provider.h titled "Life Cycle"). |
1643 | * This function implements steps 6 and 7. | |
7ee20df1 BP |
1644 | * |
1645 | * This function should only be called from an ofproto implementation's | |
1646 | * ->destruct() function. It is not suitable elsewhere. */ | |
abe529af BP |
1647 | void |
1648 | ofproto_rule_destroy(struct rule *rule) | |
064af421 | 1649 | { |
7ee20df1 BP |
1650 | assert(!rule->pending); |
1651 | classifier_remove(&rule->ofproto->tables[rule->table_id], &rule->cr); | |
1652 | ofproto_rule_destroy__(rule); | |
064af421 BP |
1653 | } |
1654 | ||
bcf84111 BP |
1655 | /* Returns true if 'rule' has an OpenFlow OFPAT_OUTPUT or OFPAT_ENQUEUE action |
1656 | * that outputs to 'out_port' (output to OFPP_FLOOD and OFPP_ALL doesn't | |
1657 | * count). */ | |
064af421 | 1658 | static bool |
9ed18e46 | 1659 | rule_has_out_port(const struct rule *rule, uint16_t out_port) |
064af421 BP |
1660 | { |
1661 | const union ofp_action *oa; | |
b4b8c781 | 1662 | size_t left; |
064af421 | 1663 | |
9ed18e46 | 1664 | if (out_port == OFPP_NONE) { |
064af421 BP |
1665 | return true; |
1666 | } | |
b4b8c781 | 1667 | OFPUTIL_ACTION_FOR_EACH_UNSAFE (oa, left, rule->actions, rule->n_actions) { |
9ed18e46 | 1668 | if (action_outputs_to_port(oa, htons(out_port))) { |
064af421 BP |
1669 | return true; |
1670 | } | |
1671 | } | |
1672 | return false; | |
1673 | } | |
1674 | ||
bcf84111 | 1675 | /* Executes the actions indicated by 'rule' on 'packet' and credits 'rule''s |
bcf84111 BP |
1676 | * statistics appropriately. 'packet' must have at least sizeof(struct |
1677 | * ofp_packet_in) bytes of headroom. | |
064af421 | 1678 | * |
bcf84111 BP |
1679 | * 'packet' doesn't necessarily have to match 'rule'. 'rule' will be credited |
1680 | * with statistics for 'packet' either way. | |
1681 | * | |
1682 | * Takes ownership of 'packet'. */ | |
5bf0e941 | 1683 | static int |
abe529af | 1684 | rule_execute(struct rule *rule, uint16_t in_port, struct ofpbuf *packet) |
eedc0097 | 1685 | { |
bcf84111 | 1686 | struct flow flow; |
eedc0097 | 1687 | |
abe529af | 1688 | assert(ofpbuf_headroom(packet) >= sizeof(struct ofp_packet_in)); |
eedc0097 | 1689 | |
abff858b | 1690 | flow_extract(packet, 0, 0, in_port, &flow); |
5bf0e941 | 1691 | return rule->ofproto->ofproto_class->rule_execute(rule, &flow, packet); |
350a665f BP |
1692 | } |
1693 | ||
abe529af BP |
1694 | /* Returns true if 'rule' should be hidden from the controller. |
1695 | * | |
1696 | * Rules with priority higher than UINT16_MAX are set up by ofproto itself | |
1697 | * (e.g. by in-band control) and are intentionally hidden from the | |
1698 | * controller. */ | |
1699 | static bool | |
1700 | rule_is_hidden(const struct rule *rule) | |
b6c9e612 | 1701 | { |
abe529af | 1702 | return rule->cr.priority > UINT16_MAX; |
7b064a79 | 1703 | } |
fa066f01 | 1704 | \f |
90bf1e07 | 1705 | static enum ofperr |
d1e2cf21 | 1706 | handle_echo_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 1707 | { |
b0421aa2 | 1708 | ofconn_send_reply(ofconn, make_echo_reply(oh)); |
064af421 | 1709 | return 0; |
064af421 BP |
1710 | } |
1711 | ||
90bf1e07 | 1712 | static enum ofperr |
d1e2cf21 | 1713 | handle_features_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 1714 | { |
64ff1d96 | 1715 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
064af421 BP |
1716 | struct ofp_switch_features *osf; |
1717 | struct ofpbuf *buf; | |
064af421 | 1718 | struct ofport *port; |
6c1491fb BP |
1719 | bool arp_match_ip; |
1720 | uint32_t actions; | |
064af421 | 1721 | |
6c1491fb BP |
1722 | ofproto->ofproto_class->get_features(ofproto, &arp_match_ip, &actions); |
1723 | assert(actions & (1 << OFPAT_OUTPUT)); /* sanity check */ | |
064af421 | 1724 | |
064af421 | 1725 | osf = make_openflow_xid(sizeof *osf, OFPT_FEATURES_REPLY, oh->xid, &buf); |
64ff1d96 | 1726 | osf->datapath_id = htonll(ofproto->datapath_id); |
064af421 | 1727 | osf->n_buffers = htonl(pktbuf_capacity()); |
6c1491fb | 1728 | osf->n_tables = ofproto->n_tables; |
064af421 | 1729 | osf->capabilities = htonl(OFPC_FLOW_STATS | OFPC_TABLE_STATS | |
428d83e6 | 1730 | OFPC_PORT_STATS | OFPC_QUEUE_STATS); |
6c1491fb BP |
1731 | if (arp_match_ip) { |
1732 | osf->capabilities |= htonl(OFPC_ARP_MATCH_IP); | |
1733 | } | |
1734 | osf->actions = htonl(actions); | |
064af421 | 1735 | |
64ff1d96 | 1736 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
9cfcdadf | 1737 | ofpbuf_put(buf, &port->opp, sizeof port->opp); |
064af421 | 1738 | } |
064af421 | 1739 | |
b0421aa2 | 1740 | ofconn_send_reply(ofconn, buf); |
064af421 BP |
1741 | return 0; |
1742 | } | |
064af421 | 1743 | |
90bf1e07 | 1744 | static enum ofperr |
d1e2cf21 | 1745 | handle_get_config_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 1746 | { |
64ff1d96 | 1747 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
064af421 | 1748 | struct ofp_switch_config *osc; |
7257b535 | 1749 | struct ofpbuf *buf; |
959a2ecd | 1750 | |
064af421 BP |
1751 | /* Send reply. */ |
1752 | osc = make_openflow_xid(sizeof *osc, OFPT_GET_CONFIG_REPLY, oh->xid, &buf); | |
7257b535 | 1753 | osc->flags = htons(ofproto->frag_handling); |
810605a2 | 1754 | osc->miss_send_len = htons(ofconn_get_miss_send_len(ofconn)); |
b0421aa2 | 1755 | ofconn_send_reply(ofconn, buf); |
2d70a31a | 1756 | |
064af421 BP |
1757 | return 0; |
1758 | } | |
064af421 | 1759 | |
90bf1e07 | 1760 | static enum ofperr |
d1e2cf21 | 1761 | handle_set_config(struct ofconn *ofconn, const struct ofp_switch_config *osc) |
064af421 | 1762 | { |
64ff1d96 | 1763 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
d1e2cf21 | 1764 | uint16_t flags = ntohs(osc->flags); |
2d70a31a | 1765 | |
7257b535 BP |
1766 | if (ofconn_get_type(ofconn) != OFCONN_PRIMARY |
1767 | || ofconn_get_role(ofconn) != NX_ROLE_SLAVE) { | |
1768 | enum ofp_config_flags cur = ofproto->frag_handling; | |
1769 | enum ofp_config_flags next = flags & OFPC_FRAG_MASK; | |
1770 | ||
1771 | assert((cur & OFPC_FRAG_MASK) == cur); | |
1772 | if (cur != next) { | |
1773 | if (ofproto->ofproto_class->set_frag_handling(ofproto, next)) { | |
1774 | ofproto->frag_handling = next; | |
1775 | } else { | |
1776 | VLOG_WARN_RL(&rl, "%s: unsupported fragment handling mode %s", | |
1777 | ofproto->name, | |
1778 | ofputil_frag_handling_to_string(next)); | |
1779 | } | |
064af421 BP |
1780 | } |
1781 | } | |
ebe482fd | 1782 | |
810605a2 | 1783 | ofconn_set_miss_send_len(ofconn, ntohs(osc->miss_send_len)); |
0ad9b732 | 1784 | |
064af421 | 1785 | return 0; |
064af421 BP |
1786 | } |
1787 | ||
9deba63b | 1788 | /* Checks whether 'ofconn' is a slave controller. If so, returns an OpenFlow |
90bf1e07 BP |
1789 | * error message code for the caller to propagate upward. Otherwise, returns |
1790 | * 0. | |
1791 | * | |
1792 | * The log message mentions 'msg_type'. */ | |
1793 | static enum ofperr | |
1794 | reject_slave_controller(struct ofconn *ofconn) | |
9deba63b | 1795 | { |
1ce0a5fa BP |
1796 | if (ofconn_get_type(ofconn) == OFCONN_PRIMARY |
1797 | && ofconn_get_role(ofconn) == NX_ROLE_SLAVE) { | |
90bf1e07 | 1798 | return OFPERR_OFPBRC_EPERM; |
9deba63b BP |
1799 | } else { |
1800 | return 0; | |
1801 | } | |
1802 | } | |
1803 | ||
90bf1e07 | 1804 | static enum ofperr |
d1e2cf21 | 1805 | handle_packet_out(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 1806 | { |
64ff1d96 | 1807 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 BP |
1808 | struct ofp_packet_out *opo; |
1809 | struct ofpbuf payload, *buffer; | |
ac51afaf | 1810 | union ofp_action *ofp_actions; |
ac51afaf | 1811 | struct ofpbuf request; |
ae412e7d | 1812 | struct flow flow; |
ac51afaf | 1813 | size_t n_ofp_actions; |
90bf1e07 | 1814 | enum ofperr error; |
e1154f71 | 1815 | uint16_t in_port; |
064af421 | 1816 | |
ac51afaf BP |
1817 | COVERAGE_INC(ofproto_packet_out); |
1818 | ||
76589937 | 1819 | error = reject_slave_controller(ofconn); |
9deba63b BP |
1820 | if (error) { |
1821 | return error; | |
1822 | } | |
1823 | ||
ac51afaf | 1824 | /* Get ofp_packet_out. */ |
0bc9407d | 1825 | ofpbuf_use_const(&request, oh, ntohs(oh->length)); |
bbc32a88 | 1826 | opo = ofpbuf_pull(&request, offsetof(struct ofp_packet_out, actions)); |
ac51afaf BP |
1827 | |
1828 | /* Get actions. */ | |
1829 | error = ofputil_pull_actions(&request, ntohs(opo->actions_len), | |
1830 | &ofp_actions, &n_ofp_actions); | |
064af421 BP |
1831 | if (error) { |
1832 | return error; | |
1833 | } | |
064af421 | 1834 | |
ac51afaf | 1835 | /* Get payload. */ |
064af421 | 1836 | if (opo->buffer_id != htonl(UINT32_MAX)) { |
10d0a1d2 | 1837 | error = ofconn_pktbuf_retrieve(ofconn, ntohl(opo->buffer_id), |
109b8459 | 1838 | &buffer, NULL); |
7778bd15 | 1839 | if (error || !buffer) { |
064af421 BP |
1840 | return error; |
1841 | } | |
1842 | payload = *buffer; | |
1843 | } else { | |
ac51afaf | 1844 | payload = request; |
064af421 BP |
1845 | buffer = NULL; |
1846 | } | |
1847 | ||
e1154f71 BP |
1848 | /* Get in_port and partially validate it. |
1849 | * | |
1850 | * We don't know what range of ports the ofproto actually implements, but | |
1851 | * we do know that only certain reserved ports (numbered OFPP_MAX and | |
1852 | * above) are valid. */ | |
1853 | in_port = ntohs(opo->in_port); | |
1854 | if (in_port >= OFPP_MAX && in_port != OFPP_LOCAL && in_port != OFPP_NONE) { | |
90bf1e07 | 1855 | return OFPERR_NXBRC_BAD_IN_PORT; |
e1154f71 BP |
1856 | } |
1857 | ||
abe529af | 1858 | /* Send out packet. */ |
e1154f71 | 1859 | flow_extract(&payload, 0, 0, in_port, &flow); |
abe529af BP |
1860 | error = p->ofproto_class->packet_out(p, &payload, &flow, |
1861 | ofp_actions, n_ofp_actions); | |
ac51afaf | 1862 | ofpbuf_delete(buffer); |
abe529af BP |
1863 | |
1864 | return error; | |
064af421 BP |
1865 | } |
1866 | ||
1867 | static void | |
abe529af | 1868 | update_port_config(struct ofport *port, ovs_be32 config, ovs_be32 mask) |
064af421 | 1869 | { |
abe529af BP |
1870 | ovs_be32 old_config = port->opp.config; |
1871 | ||
064af421 | 1872 | mask &= config ^ port->opp.config; |
118c4676 BP |
1873 | if (mask & htonl(OFPPC_PORT_DOWN)) { |
1874 | if (config & htonl(OFPPC_PORT_DOWN)) { | |
064af421 BP |
1875 | netdev_turn_flags_off(port->netdev, NETDEV_UP, true); |
1876 | } else { | |
1877 | netdev_turn_flags_on(port->netdev, NETDEV_UP, true); | |
1878 | } | |
1879 | } | |
abe529af BP |
1880 | |
1881 | port->opp.config ^= mask & (htonl(OFPPC_NO_RECV | OFPPC_NO_RECV_STP | | |
1882 | OFPPC_NO_FLOOD | OFPPC_NO_FWD | | |
1883 | OFPPC_NO_PACKET_IN)); | |
1884 | if (port->opp.config != old_config) { | |
1885 | port->ofproto->ofproto_class->port_reconfigured(port, old_config); | |
064af421 BP |
1886 | } |
1887 | } | |
1888 | ||
90bf1e07 | 1889 | static enum ofperr |
d1e2cf21 | 1890 | handle_port_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 1891 | { |
64ff1d96 | 1892 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
d1e2cf21 | 1893 | const struct ofp_port_mod *opm = (const struct ofp_port_mod *) oh; |
064af421 BP |
1894 | struct ofport *port; |
1895 | int error; | |
1896 | ||
76589937 | 1897 | error = reject_slave_controller(ofconn); |
9deba63b BP |
1898 | if (error) { |
1899 | return error; | |
1900 | } | |
064af421 | 1901 | |
abe529af | 1902 | port = ofproto_get_port(p, ntohs(opm->port_no)); |
064af421 | 1903 | if (!port) { |
90bf1e07 | 1904 | return OFPERR_OFPPMFC_BAD_PORT; |
064af421 | 1905 | } else if (memcmp(port->opp.hw_addr, opm->hw_addr, OFP_ETH_ALEN)) { |
90bf1e07 | 1906 | return OFPERR_OFPPMFC_BAD_HW_ADDR; |
064af421 | 1907 | } else { |
abe529af | 1908 | update_port_config(port, opm->config, opm->mask); |
064af421 BP |
1909 | if (opm->advertise) { |
1910 | netdev_set_advertisements(port->netdev, ntohl(opm->advertise)); | |
1911 | } | |
1912 | } | |
1913 | return 0; | |
1914 | } | |
1915 | ||
90bf1e07 | 1916 | static enum ofperr |
3269c562 | 1917 | handle_desc_stats_request(struct ofconn *ofconn, |
63f2140a | 1918 | const struct ofp_stats_msg *request) |
064af421 | 1919 | { |
64ff1d96 | 1920 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 BP |
1921 | struct ofp_desc_stats *ods; |
1922 | struct ofpbuf *msg; | |
1923 | ||
63f2140a | 1924 | ods = ofputil_make_stats_reply(sizeof *ods, request, &msg); |
5a719c38 JP |
1925 | ovs_strlcpy(ods->mfr_desc, p->mfr_desc, sizeof ods->mfr_desc); |
1926 | ovs_strlcpy(ods->hw_desc, p->hw_desc, sizeof ods->hw_desc); | |
1927 | ovs_strlcpy(ods->sw_desc, p->sw_desc, sizeof ods->sw_desc); | |
1928 | ovs_strlcpy(ods->serial_num, p->serial_desc, sizeof ods->serial_num); | |
1929 | ovs_strlcpy(ods->dp_desc, p->dp_desc, sizeof ods->dp_desc); | |
b0421aa2 | 1930 | ofconn_send_reply(ofconn, msg); |
064af421 BP |
1931 | |
1932 | return 0; | |
1933 | } | |
1934 | ||
90bf1e07 | 1935 | static enum ofperr |
3269c562 | 1936 | handle_table_stats_request(struct ofconn *ofconn, |
63f2140a | 1937 | const struct ofp_stats_msg *request) |
064af421 | 1938 | { |
64ff1d96 | 1939 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 BP |
1940 | struct ofp_table_stats *ots; |
1941 | struct ofpbuf *msg; | |
6c1491fb | 1942 | size_t i; |
064af421 | 1943 | |
63f2140a | 1944 | ofputil_make_stats_reply(sizeof(struct ofp_stats_msg), request, &msg); |
064af421 | 1945 | |
6c1491fb BP |
1946 | ots = ofpbuf_put_zeros(msg, sizeof *ots * p->n_tables); |
1947 | for (i = 0; i < p->n_tables; i++) { | |
1948 | ots[i].table_id = i; | |
35aa7a21 | 1949 | sprintf(ots[i].name, "table%zu", i); |
00794817 | 1950 | ots[i].wildcards = htonl(OFPFW_ALL); |
6c1491fb BP |
1951 | ots[i].max_entries = htonl(1000000); /* An arbitrary big number. */ |
1952 | ots[i].active_count = htonl(classifier_count(&p->tables[i])); | |
1953 | } | |
064af421 | 1954 | |
6c1491fb | 1955 | p->ofproto_class->get_tables(p, ots); |
064af421 | 1956 | |
b0421aa2 | 1957 | ofconn_send_reply(ofconn, msg); |
064af421 BP |
1958 | return 0; |
1959 | } | |
1960 | ||
abaad8cf | 1961 | static void |
63f2140a | 1962 | append_port_stat(struct ofport *port, struct list *replies) |
abaad8cf JP |
1963 | { |
1964 | struct netdev_stats stats; | |
1965 | struct ofp_port_stats *ops; | |
1966 | ||
d295e8e9 JP |
1967 | /* Intentionally ignore return value, since errors will set |
1968 | * 'stats' to all-1s, which is correct for OpenFlow, and | |
abaad8cf | 1969 | * netdev_get_stats() will log errors. */ |
6527c598 | 1970 | ofproto_port_get_stats(port, &stats); |
abaad8cf | 1971 | |
63f2140a | 1972 | ops = ofputil_append_stats_reply(sizeof *ops, replies); |
118c4676 | 1973 | ops->port_no = port->opp.port_no; |
abaad8cf | 1974 | memset(ops->pad, 0, sizeof ops->pad); |
c4617b3c BP |
1975 | put_32aligned_be64(&ops->rx_packets, htonll(stats.rx_packets)); |
1976 | put_32aligned_be64(&ops->tx_packets, htonll(stats.tx_packets)); | |
1977 | put_32aligned_be64(&ops->rx_bytes, htonll(stats.rx_bytes)); | |
1978 | put_32aligned_be64(&ops->tx_bytes, htonll(stats.tx_bytes)); | |
1979 | put_32aligned_be64(&ops->rx_dropped, htonll(stats.rx_dropped)); | |
1980 | put_32aligned_be64(&ops->tx_dropped, htonll(stats.tx_dropped)); | |
1981 | put_32aligned_be64(&ops->rx_errors, htonll(stats.rx_errors)); | |
1982 | put_32aligned_be64(&ops->tx_errors, htonll(stats.tx_errors)); | |
1983 | put_32aligned_be64(&ops->rx_frame_err, htonll(stats.rx_frame_errors)); | |
1984 | put_32aligned_be64(&ops->rx_over_err, htonll(stats.rx_over_errors)); | |
1985 | put_32aligned_be64(&ops->rx_crc_err, htonll(stats.rx_crc_errors)); | |
1986 | put_32aligned_be64(&ops->collisions, htonll(stats.collisions)); | |
abaad8cf JP |
1987 | } |
1988 | ||
90bf1e07 | 1989 | static enum ofperr |
63f2140a BP |
1990 | handle_port_stats_request(struct ofconn *ofconn, |
1991 | const struct ofp_port_stats_request *psr) | |
064af421 | 1992 | { |
64ff1d96 | 1993 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 | 1994 | struct ofport *port; |
63f2140a | 1995 | struct list replies; |
064af421 | 1996 | |
63f2140a | 1997 | ofputil_start_stats_reply(&psr->osm, &replies); |
abaad8cf | 1998 | if (psr->port_no != htons(OFPP_NONE)) { |
abe529af | 1999 | port = ofproto_get_port(p, ntohs(psr->port_no)); |
abaad8cf | 2000 | if (port) { |
63f2140a | 2001 | append_port_stat(port, &replies); |
abaad8cf JP |
2002 | } |
2003 | } else { | |
4e8e4213 | 2004 | HMAP_FOR_EACH (port, hmap_node, &p->ports) { |
63f2140a | 2005 | append_port_stat(port, &replies); |
abaad8cf | 2006 | } |
064af421 BP |
2007 | } |
2008 | ||
63f2140a | 2009 | ofconn_send_replies(ofconn, &replies); |
064af421 BP |
2010 | return 0; |
2011 | } | |
2012 | ||
c6ebb8fb | 2013 | static void |
588cd7b5 | 2014 | calc_flow_duration__(long long int start, uint32_t *sec, uint32_t *nsec) |
c6ebb8fb BP |
2015 | { |
2016 | long long int msecs = time_msec() - start; | |
588cd7b5 BP |
2017 | *sec = msecs / 1000; |
2018 | *nsec = (msecs % 1000) * (1000 * 1000); | |
2019 | } | |
2020 | ||
48266274 BP |
2021 | /* Checks whether 'table_id' is 0xff or a valid table ID in 'ofproto'. Returns |
2022 | * 0 if 'table_id' is OK, otherwise an OpenFlow error code. */ | |
90bf1e07 | 2023 | static enum ofperr |
48266274 BP |
2024 | check_table_id(const struct ofproto *ofproto, uint8_t table_id) |
2025 | { | |
2026 | return (table_id == 0xff || table_id < ofproto->n_tables | |
2027 | ? 0 | |
90bf1e07 | 2028 | : OFPERR_NXBRC_BAD_TABLE_ID); |
48266274 BP |
2029 | |
2030 | } | |
2031 | ||
6c1491fb BP |
2032 | static struct classifier * |
2033 | first_matching_table(struct ofproto *ofproto, uint8_t table_id) | |
064af421 | 2034 | { |
6c1491fb BP |
2035 | if (table_id == 0xff) { |
2036 | return &ofproto->tables[0]; | |
2037 | } else if (table_id < ofproto->n_tables) { | |
2038 | return &ofproto->tables[table_id]; | |
a02e5331 | 2039 | } else { |
6c1491fb | 2040 | return NULL; |
a02e5331 | 2041 | } |
064af421 BP |
2042 | } |
2043 | ||
6c1491fb BP |
2044 | static struct classifier * |
2045 | next_matching_table(struct ofproto *ofproto, | |
2046 | struct classifier *cls, uint8_t table_id) | |
2047 | { | |
2048 | return (table_id == 0xff && cls != &ofproto->tables[ofproto->n_tables - 1] | |
2049 | ? cls + 1 | |
2050 | : NULL); | |
2051 | } | |
2052 | ||
2053 | /* Assigns CLS to each classifier table, in turn, that matches TABLE_ID in | |
2054 | * OFPROTO: | |
2055 | * | |
2056 | * - If TABLE_ID is 0xff, this iterates over every classifier table in | |
2057 | * OFPROTO. | |
2058 | * | |
2059 | * - If TABLE_ID is the number of a table in OFPROTO, then the loop iterates | |
2060 | * only once, for that table. | |
2061 | * | |
48266274 BP |
2062 | * - Otherwise, TABLE_ID isn't valid for OFPROTO, so the loop won't be |
2063 | * entered at all. (Perhaps you should have validated TABLE_ID with | |
2064 | * check_table_id().) | |
6c1491fb BP |
2065 | * |
2066 | * All parameters are evaluated multiple times. | |
2067 | */ | |
2068 | #define FOR_EACH_MATCHING_TABLE(CLS, TABLE_ID, OFPROTO) \ | |
2069 | for ((CLS) = first_matching_table(OFPROTO, TABLE_ID); \ | |
2070 | (CLS) != NULL; \ | |
2071 | (CLS) = next_matching_table(OFPROTO, CLS, TABLE_ID)) | |
2072 | ||
9ed18e46 BP |
2073 | /* Searches 'ofproto' for rules in table 'table_id' (or in all tables, if |
2074 | * 'table_id' is 0xff) that match 'match' in the "loose" way required for | |
2075 | * OpenFlow OFPFC_MODIFY and OFPFC_DELETE requests and puts them on list | |
2076 | * 'rules'. | |
2077 | * | |
2078 | * If 'out_port' is anything other than OFPP_NONE, then only rules that output | |
2079 | * to 'out_port' are included. | |
2080 | * | |
2081 | * Hidden rules are always omitted. | |
2082 | * | |
2083 | * Returns 0 on success, otherwise an OpenFlow error code. */ | |
90bf1e07 | 2084 | static enum ofperr |
9ed18e46 | 2085 | collect_rules_loose(struct ofproto *ofproto, uint8_t table_id, |
e729e793 JP |
2086 | const struct cls_rule *match, |
2087 | ovs_be64 cookie, ovs_be64 cookie_mask, | |
2088 | uint16_t out_port, struct list *rules) | |
9ed18e46 BP |
2089 | { |
2090 | struct classifier *cls; | |
90bf1e07 | 2091 | enum ofperr error; |
48266274 BP |
2092 | |
2093 | error = check_table_id(ofproto, table_id); | |
2094 | if (error) { | |
2095 | return error; | |
2096 | } | |
9ed18e46 BP |
2097 | |
2098 | list_init(rules); | |
2099 | FOR_EACH_MATCHING_TABLE (cls, table_id, ofproto) { | |
2100 | struct cls_cursor cursor; | |
2101 | struct rule *rule; | |
2102 | ||
2103 | cls_cursor_init(&cursor, cls, match); | |
2104 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { | |
7ee20df1 BP |
2105 | if (rule->pending) { |
2106 | return OFPROTO_POSTPONE; | |
2107 | } | |
e729e793 JP |
2108 | if (!rule_is_hidden(rule) && rule_has_out_port(rule, out_port) |
2109 | && !((rule->flow_cookie ^ cookie) & cookie_mask)) { | |
9ed18e46 BP |
2110 | list_push_back(rules, &rule->ofproto_node); |
2111 | } | |
2112 | } | |
2113 | } | |
2114 | return 0; | |
2115 | } | |
2116 | ||
2117 | /* Searches 'ofproto' for rules in table 'table_id' (or in all tables, if | |
2118 | * 'table_id' is 0xff) that match 'match' in the "strict" way required for | |
2119 | * OpenFlow OFPFC_MODIFY_STRICT and OFPFC_DELETE_STRICT requests and puts them | |
2120 | * on list 'rules'. | |
2121 | * | |
2122 | * If 'out_port' is anything other than OFPP_NONE, then only rules that output | |
2123 | * to 'out_port' are included. | |
2124 | * | |
2125 | * Hidden rules are always omitted. | |
2126 | * | |
2127 | * Returns 0 on success, otherwise an OpenFlow error code. */ | |
90bf1e07 | 2128 | static enum ofperr |
9ed18e46 | 2129 | collect_rules_strict(struct ofproto *ofproto, uint8_t table_id, |
e729e793 JP |
2130 | const struct cls_rule *match, |
2131 | ovs_be64 cookie, ovs_be64 cookie_mask, | |
2132 | uint16_t out_port, struct list *rules) | |
9ed18e46 BP |
2133 | { |
2134 | struct classifier *cls; | |
48266274 BP |
2135 | int error; |
2136 | ||
2137 | error = check_table_id(ofproto, table_id); | |
2138 | if (error) { | |
2139 | return error; | |
2140 | } | |
9ed18e46 BP |
2141 | |
2142 | list_init(rules); | |
2143 | FOR_EACH_MATCHING_TABLE (cls, table_id, ofproto) { | |
2144 | struct rule *rule; | |
2145 | ||
2146 | rule = rule_from_cls_rule(classifier_find_rule_exactly(cls, match)); | |
2147 | if (rule) { | |
7ee20df1 BP |
2148 | if (rule->pending) { |
2149 | return OFPROTO_POSTPONE; | |
2150 | } | |
e729e793 JP |
2151 | if (!rule_is_hidden(rule) && rule_has_out_port(rule, out_port) |
2152 | && !((rule->flow_cookie ^ cookie) & cookie_mask)) { | |
9ed18e46 BP |
2153 | list_push_back(rules, &rule->ofproto_node); |
2154 | } | |
2155 | } | |
2156 | } | |
2157 | return 0; | |
2158 | } | |
2159 | ||
90bf1e07 | 2160 | static enum ofperr |
63f2140a | 2161 | handle_flow_stats_request(struct ofconn *ofconn, |
349adfb2 | 2162 | const struct ofp_stats_msg *osm) |
064af421 | 2163 | { |
64ff1d96 | 2164 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
81d1ea94 | 2165 | struct ofputil_flow_stats_request fsr; |
63f2140a | 2166 | struct list replies; |
9ed18e46 BP |
2167 | struct list rules; |
2168 | struct rule *rule; | |
90bf1e07 | 2169 | enum ofperr error; |
09246b99 | 2170 | |
349adfb2 | 2171 | error = ofputil_decode_flow_stats_request(&fsr, &osm->header); |
09246b99 BP |
2172 | if (error) { |
2173 | return error; | |
2174 | } | |
2175 | ||
9ed18e46 | 2176 | error = collect_rules_loose(ofproto, fsr.table_id, &fsr.match, |
e729e793 | 2177 | fsr.cookie, fsr.cookie_mask, |
9ed18e46 BP |
2178 | fsr.out_port, &rules); |
2179 | if (error) { | |
2180 | return error; | |
2181 | } | |
5ecc9d81 | 2182 | |
9ed18e46 BP |
2183 | ofputil_start_stats_reply(osm, &replies); |
2184 | LIST_FOR_EACH (rule, ofproto_node, &rules) { | |
2185 | struct ofputil_flow_stats fs; | |
2186 | ||
2187 | fs.rule = rule->cr; | |
2188 | fs.cookie = rule->flow_cookie; | |
2189 | fs.table_id = rule->table_id; | |
2190 | calc_flow_duration__(rule->created, &fs.duration_sec, | |
2191 | &fs.duration_nsec); | |
2192 | fs.idle_timeout = rule->idle_timeout; | |
2193 | fs.hard_timeout = rule->hard_timeout; | |
2194 | ofproto->ofproto_class->rule_get_stats(rule, &fs.packet_count, | |
2195 | &fs.byte_count); | |
2196 | fs.actions = rule->actions; | |
2197 | fs.n_actions = rule->n_actions; | |
2198 | ofputil_append_flow_stats_reply(&fs, &replies); | |
3c4486a5 | 2199 | } |
63f2140a | 2200 | ofconn_send_replies(ofconn, &replies); |
5ecc9d81 | 2201 | |
09246b99 BP |
2202 | return 0; |
2203 | } | |
2204 | ||
4f2cad2c | 2205 | static void |
3394b5b6 | 2206 | flow_stats_ds(struct rule *rule, struct ds *results) |
4f2cad2c | 2207 | { |
4f2cad2c | 2208 | uint64_t packet_count, byte_count; |
4f2cad2c | 2209 | |
abe529af BP |
2210 | rule->ofproto->ofproto_class->rule_get_stats(rule, |
2211 | &packet_count, &byte_count); | |
4f2cad2c | 2212 | |
6c1491fb BP |
2213 | if (rule->table_id != 0) { |
2214 | ds_put_format(results, "table_id=%"PRIu8", ", rule->table_id); | |
2215 | } | |
4f2cad2c JP |
2216 | ds_put_format(results, "duration=%llds, ", |
2217 | (time_msec() - rule->created) / 1000); | |
52ae00b3 | 2218 | ds_put_format(results, "priority=%u, ", rule->cr.priority); |
4f2cad2c JP |
2219 | ds_put_format(results, "n_packets=%"PRIu64", ", packet_count); |
2220 | ds_put_format(results, "n_bytes=%"PRIu64", ", byte_count); | |
cb833cf6 | 2221 | cls_rule_format(&rule->cr, results); |
a5df0e72 | 2222 | ds_put_char(results, ','); |
b4b8c781 BP |
2223 | if (rule->n_actions > 0) { |
2224 | ofp_print_actions(results, rule->actions, rule->n_actions); | |
3c8552c1 JP |
2225 | } else { |
2226 | ds_put_cstr(results, "drop"); | |
3dffcf07 | 2227 | } |
4f2cad2c JP |
2228 | ds_put_cstr(results, "\n"); |
2229 | } | |
2230 | ||
d295e8e9 | 2231 | /* Adds a pretty-printed description of all flows to 'results', including |
ee8b231c | 2232 | * hidden flows (e.g., set up by in-band control). */ |
4f2cad2c JP |
2233 | void |
2234 | ofproto_get_all_flows(struct ofproto *p, struct ds *results) | |
2235 | { | |
6c1491fb BP |
2236 | struct classifier *cls; |
2237 | ||
b772ded8 | 2238 | OFPROTO_FOR_EACH_TABLE (cls, p) { |
6c1491fb BP |
2239 | struct cls_cursor cursor; |
2240 | struct rule *rule; | |
064af421 | 2241 | |
6c1491fb BP |
2242 | cls_cursor_init(&cursor, cls, NULL); |
2243 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { | |
2244 | flow_stats_ds(rule, results); | |
2245 | } | |
064af421 | 2246 | } |
064af421 BP |
2247 | } |
2248 | ||
b5827b24 BP |
2249 | /* Obtains the NetFlow engine type and engine ID for 'ofproto' into |
2250 | * '*engine_type' and '*engine_id', respectively. */ | |
2251 | void | |
2252 | ofproto_get_netflow_ids(const struct ofproto *ofproto, | |
2253 | uint8_t *engine_type, uint8_t *engine_id) | |
2254 | { | |
abe529af | 2255 | ofproto->ofproto_class->get_netflow_ids(ofproto, engine_type, engine_id); |
b5827b24 BP |
2256 | } |
2257 | ||
a5610457 EJ |
2258 | /* Checks the fault status of CFM for 'ofp_port' within 'ofproto'. Returns 1 |
2259 | * if CFM is faulted (generally indiciating a connectivity problem), 0 if CFM | |
2260 | * is not faulted, and -1 if CFM is not enabled on 'ofp_port'. */ | |
2261 | int | |
2262 | ofproto_port_get_cfm_fault(const struct ofproto *ofproto, uint16_t ofp_port) | |
2263 | { | |
2264 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
2265 | return (ofport && ofproto->ofproto_class->get_cfm_fault | |
2266 | ? ofproto->ofproto_class->get_cfm_fault(ofport) | |
2267 | : -1); | |
2268 | } | |
2269 | ||
1de11730 EJ |
2270 | /* Gets the MPIDs of the remote maintenance points broadcasting to 'ofp_port' |
2271 | * within 'ofproto'. Populates 'rmps' with an array of MPIDs owned by | |
2272 | * 'ofproto', and 'n_rmps' with the number of MPIDs in 'rmps'. Returns a | |
2273 | * number less than 0 if CFM is not enabled on 'ofp_port'. */ | |
2274 | int | |
2275 | ofproto_port_get_cfm_remote_mpids(const struct ofproto *ofproto, | |
2276 | uint16_t ofp_port, const uint64_t **rmps, | |
2277 | size_t *n_rmps) | |
2278 | { | |
2279 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
2280 | ||
2281 | *rmps = NULL; | |
2282 | *n_rmps = 0; | |
2283 | return (ofport && ofproto->ofproto_class->get_cfm_remote_mpids | |
2284 | ? ofproto->ofproto_class->get_cfm_remote_mpids(ofport, rmps, | |
2285 | n_rmps) | |
2286 | : -1); | |
2287 | } | |
2288 | ||
90bf1e07 | 2289 | static enum ofperr |
76c93b22 BP |
2290 | handle_aggregate_stats_request(struct ofconn *ofconn, |
2291 | const struct ofp_stats_msg *osm) | |
27d34fce | 2292 | { |
76c93b22 | 2293 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
81d1ea94 | 2294 | struct ofputil_flow_stats_request request; |
76c93b22 | 2295 | struct ofputil_aggregate_stats stats; |
5e9d0469 | 2296 | bool unknown_packets, unknown_bytes; |
76c93b22 | 2297 | struct ofpbuf *reply; |
9ed18e46 BP |
2298 | struct list rules; |
2299 | struct rule *rule; | |
90bf1e07 | 2300 | enum ofperr error; |
27d34fce | 2301 | |
76c93b22 BP |
2302 | error = ofputil_decode_flow_stats_request(&request, &osm->header); |
2303 | if (error) { | |
2304 | return error; | |
2305 | } | |
5ecc9d81 | 2306 | |
9ed18e46 | 2307 | error = collect_rules_loose(ofproto, request.table_id, &request.match, |
e729e793 | 2308 | request.cookie, request.cookie_mask, |
9ed18e46 BP |
2309 | request.out_port, &rules); |
2310 | if (error) { | |
2311 | return error; | |
2312 | } | |
3c4486a5 | 2313 | |
9ed18e46 | 2314 | memset(&stats, 0, sizeof stats); |
5e9d0469 | 2315 | unknown_packets = unknown_bytes = false; |
9ed18e46 BP |
2316 | LIST_FOR_EACH (rule, ofproto_node, &rules) { |
2317 | uint64_t packet_count; | |
2318 | uint64_t byte_count; | |
5ecc9d81 | 2319 | |
9ed18e46 BP |
2320 | ofproto->ofproto_class->rule_get_stats(rule, &packet_count, |
2321 | &byte_count); | |
5ecc9d81 | 2322 | |
5e9d0469 BP |
2323 | if (packet_count == UINT64_MAX) { |
2324 | unknown_packets = true; | |
2325 | } else { | |
2326 | stats.packet_count += packet_count; | |
2327 | } | |
2328 | ||
2329 | if (byte_count == UINT64_MAX) { | |
2330 | unknown_bytes = true; | |
2331 | } else { | |
2332 | stats.byte_count += byte_count; | |
2333 | } | |
2334 | ||
9ed18e46 | 2335 | stats.flow_count++; |
3c4486a5 | 2336 | } |
5e9d0469 BP |
2337 | if (unknown_packets) { |
2338 | stats.packet_count = UINT64_MAX; | |
2339 | } | |
2340 | if (unknown_bytes) { | |
2341 | stats.byte_count = UINT64_MAX; | |
2342 | } | |
27d34fce | 2343 | |
76c93b22 BP |
2344 | reply = ofputil_encode_aggregate_stats_reply(&stats, osm); |
2345 | ofconn_send_reply(ofconn, reply); | |
09246b99 BP |
2346 | |
2347 | return 0; | |
2348 | } | |
2349 | ||
c1c9c9c4 | 2350 | struct queue_stats_cbdata { |
ca0f572c | 2351 | struct ofport *ofport; |
63f2140a | 2352 | struct list replies; |
c1c9c9c4 BP |
2353 | }; |
2354 | ||
2355 | static void | |
db9220c3 | 2356 | put_queue_stats(struct queue_stats_cbdata *cbdata, uint32_t queue_id, |
c1c9c9c4 BP |
2357 | const struct netdev_queue_stats *stats) |
2358 | { | |
2359 | struct ofp_queue_stats *reply; | |
2360 | ||
63f2140a | 2361 | reply = ofputil_append_stats_reply(sizeof *reply, &cbdata->replies); |
118c4676 | 2362 | reply->port_no = cbdata->ofport->opp.port_no; |
c1c9c9c4 BP |
2363 | memset(reply->pad, 0, sizeof reply->pad); |
2364 | reply->queue_id = htonl(queue_id); | |
c4617b3c BP |
2365 | put_32aligned_be64(&reply->tx_bytes, htonll(stats->tx_bytes)); |
2366 | put_32aligned_be64(&reply->tx_packets, htonll(stats->tx_packets)); | |
2367 | put_32aligned_be64(&reply->tx_errors, htonll(stats->tx_errors)); | |
c1c9c9c4 BP |
2368 | } |
2369 | ||
2370 | static void | |
db9220c3 | 2371 | handle_queue_stats_dump_cb(uint32_t queue_id, |
c1c9c9c4 BP |
2372 | struct netdev_queue_stats *stats, |
2373 | void *cbdata_) | |
2374 | { | |
2375 | struct queue_stats_cbdata *cbdata = cbdata_; | |
2376 | ||
2377 | put_queue_stats(cbdata, queue_id, stats); | |
2378 | } | |
2379 | ||
2380 | static void | |
ca0f572c | 2381 | handle_queue_stats_for_port(struct ofport *port, uint32_t queue_id, |
c1c9c9c4 BP |
2382 | struct queue_stats_cbdata *cbdata) |
2383 | { | |
ca0f572c | 2384 | cbdata->ofport = port; |
c1c9c9c4 BP |
2385 | if (queue_id == OFPQ_ALL) { |
2386 | netdev_dump_queue_stats(port->netdev, | |
2387 | handle_queue_stats_dump_cb, cbdata); | |
2388 | } else { | |
2389 | struct netdev_queue_stats stats; | |
2390 | ||
1ac788f6 BP |
2391 | if (!netdev_get_queue_stats(port->netdev, queue_id, &stats)) { |
2392 | put_queue_stats(cbdata, queue_id, &stats); | |
2393 | } | |
c1c9c9c4 BP |
2394 | } |
2395 | } | |
2396 | ||
90bf1e07 | 2397 | static enum ofperr |
63f2140a BP |
2398 | handle_queue_stats_request(struct ofconn *ofconn, |
2399 | const struct ofp_queue_stats_request *qsr) | |
c1c9c9c4 | 2400 | { |
64ff1d96 | 2401 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
c1c9c9c4 BP |
2402 | struct queue_stats_cbdata cbdata; |
2403 | struct ofport *port; | |
2404 | unsigned int port_no; | |
2405 | uint32_t queue_id; | |
2406 | ||
c1c9c9c4 BP |
2407 | COVERAGE_INC(ofproto_queue_req); |
2408 | ||
63f2140a | 2409 | ofputil_start_stats_reply(&qsr->osm, &cbdata.replies); |
c1c9c9c4 BP |
2410 | |
2411 | port_no = ntohs(qsr->port_no); | |
2412 | queue_id = ntohl(qsr->queue_id); | |
2413 | if (port_no == OFPP_ALL) { | |
4e8e4213 | 2414 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
ca0f572c | 2415 | handle_queue_stats_for_port(port, queue_id, &cbdata); |
c1c9c9c4 | 2416 | } |
abe529af BP |
2417 | } else if (port_no < OFPP_MAX) { |
2418 | port = ofproto_get_port(ofproto, port_no); | |
c1c9c9c4 | 2419 | if (port) { |
ca0f572c | 2420 | handle_queue_stats_for_port(port, queue_id, &cbdata); |
c1c9c9c4 BP |
2421 | } |
2422 | } else { | |
63f2140a | 2423 | ofpbuf_list_delete(&cbdata.replies); |
90bf1e07 | 2424 | return OFPERR_OFPQOFC_BAD_PORT; |
c1c9c9c4 | 2425 | } |
63f2140a | 2426 | ofconn_send_replies(ofconn, &cbdata.replies); |
c1c9c9c4 BP |
2427 | |
2428 | return 0; | |
2429 | } | |
7ee20df1 BP |
2430 | |
2431 | static bool | |
2432 | is_flow_deletion_pending(const struct ofproto *ofproto, | |
2433 | const struct cls_rule *cls_rule, | |
2434 | uint8_t table_id) | |
2435 | { | |
2436 | if (!hmap_is_empty(&ofproto->deletions)) { | |
2437 | struct ofoperation *op; | |
2438 | ||
2439 | HMAP_FOR_EACH_WITH_HASH (op, hmap_node, | |
2440 | cls_rule_hash(cls_rule, table_id), | |
2441 | &ofproto->deletions) { | |
2442 | if (cls_rule_equal(cls_rule, &op->rule->cr)) { | |
2443 | return true; | |
2444 | } | |
2445 | } | |
2446 | } | |
2447 | ||
2448 | return false; | |
2449 | } | |
2450 | ||
79eee1eb BP |
2451 | /* Implements OFPFC_ADD and the cases for OFPFC_MODIFY and OFPFC_MODIFY_STRICT |
2452 | * in which no matching flow already exists in the flow table. | |
2453 | * | |
2454 | * Adds the flow specified by 'ofm', which is followed by 'n_actions' | |
75a75043 | 2455 | * ofp_actions, to the ofproto's flow table. Returns 0 on success, an OpenFlow |
90bf1e07 BP |
2456 | * error code on failure, or OFPROTO_POSTPONE if the operation cannot be |
2457 | * initiated now but may be retried later. | |
79eee1eb BP |
2458 | * |
2459 | * 'ofconn' is used to retrieve the packet buffer specified in ofm->buffer_id, | |
2460 | * if any. */ | |
90bf1e07 | 2461 | static enum ofperr |
a9a2da38 | 2462 | add_flow(struct ofproto *ofproto, struct ofconn *ofconn, |
1b9d6420 | 2463 | const struct ofputil_flow_mod *fm, const struct ofp_header *request) |
064af421 | 2464 | { |
7ee20df1 BP |
2465 | struct classifier *table; |
2466 | struct ofopgroup *group; | |
2467 | struct rule *victim; | |
064af421 | 2468 | struct rule *rule; |
064af421 BP |
2469 | int error; |
2470 | ||
48266274 BP |
2471 | error = check_table_id(ofproto, fm->table_id); |
2472 | if (error) { | |
2473 | return error; | |
2474 | } | |
2475 | ||
7ee20df1 BP |
2476 | /* Pick table. */ |
2477 | if (fm->table_id == 0xff) { | |
2478 | uint8_t table_id; | |
13521ff5 | 2479 | if (ofproto->ofproto_class->rule_choose_table) { |
7ee20df1 BP |
2480 | error = ofproto->ofproto_class->rule_choose_table(ofproto, &fm->cr, |
2481 | &table_id); | |
2482 | if (error) { | |
2483 | return error; | |
2484 | } | |
2485 | assert(table_id < ofproto->n_tables); | |
2486 | table = &ofproto->tables[table_id]; | |
2487 | } else { | |
2488 | table = &ofproto->tables[0]; | |
2489 | } | |
2490 | } else if (fm->table_id < ofproto->n_tables) { | |
2491 | table = &ofproto->tables[fm->table_id]; | |
2492 | } else { | |
90bf1e07 | 2493 | return OFPERR_NXFMFC_BAD_TABLE_ID; |
064af421 BP |
2494 | } |
2495 | ||
63adcc7d BP |
2496 | /* Check for overlap, if requested. */ |
2497 | if (fm->flags & OFPFF_CHECK_OVERLAP | |
2498 | && classifier_rule_overlaps(table, &fm->cr)) { | |
90bf1e07 | 2499 | return OFPERR_OFPFMFC_OVERLAP; |
63adcc7d BP |
2500 | } |
2501 | ||
7ee20df1 BP |
2502 | /* Serialize against pending deletion. */ |
2503 | if (is_flow_deletion_pending(ofproto, &fm->cr, table - ofproto->tables)) { | |
2504 | return OFPROTO_POSTPONE; | |
afe75089 | 2505 | } |
064af421 | 2506 | |
7ee20df1 BP |
2507 | /* Allocate new rule. */ |
2508 | rule = ofproto->ofproto_class->rule_alloc(); | |
2509 | if (!rule) { | |
2510 | VLOG_WARN_RL(&rl, "%s: failed to create rule (%s)", | |
2511 | ofproto->name, strerror(error)); | |
2512 | return ENOMEM; | |
2513 | } | |
2514 | rule->ofproto = ofproto; | |
2515 | rule->cr = fm->cr; | |
2516 | rule->pending = NULL; | |
2517 | rule->flow_cookie = fm->cookie; | |
308881af | 2518 | rule->created = rule->modified = time_msec(); |
7ee20df1 BP |
2519 | rule->idle_timeout = fm->idle_timeout; |
2520 | rule->hard_timeout = fm->hard_timeout; | |
2521 | rule->table_id = table - ofproto->tables; | |
2522 | rule->send_flow_removed = (fm->flags & OFPFF_SEND_FLOW_REM) != 0; | |
2523 | rule->actions = ofputil_actions_clone(fm->actions, fm->n_actions); | |
2524 | rule->n_actions = fm->n_actions; | |
2525 | ||
2526 | /* Insert new rule. */ | |
2527 | victim = rule_from_cls_rule(classifier_replace(table, &rule->cr)); | |
2528 | if (victim && victim->pending) { | |
2529 | error = OFPROTO_POSTPONE; | |
2530 | } else { | |
7024dffe | 2531 | group = ofopgroup_create(ofproto, ofconn, request, fm->buffer_id); |
7ee20df1 BP |
2532 | ofoperation_create(group, rule, OFOPERATION_ADD); |
2533 | rule->pending->victim = victim; | |
2534 | ||
2535 | error = ofproto->ofproto_class->rule_construct(rule); | |
2536 | if (error) { | |
2537 | ofoperation_destroy(rule->pending); | |
2538 | } | |
2539 | ofopgroup_submit(group); | |
064af421 | 2540 | } |
79eee1eb | 2541 | |
7ee20df1 | 2542 | /* Back out if an error occurred. */ |
79eee1eb | 2543 | if (error) { |
7ee20df1 BP |
2544 | if (victim) { |
2545 | classifier_replace(table, &victim->cr); | |
2546 | } else { | |
2547 | classifier_remove(table, &rule->cr); | |
2548 | } | |
2549 | ofproto_rule_destroy__(rule); | |
79eee1eb | 2550 | } |
7ee20df1 | 2551 | return error; |
064af421 | 2552 | } |
79eee1eb BP |
2553 | \f |
2554 | /* OFPFC_MODIFY and OFPFC_MODIFY_STRICT. */ | |
064af421 | 2555 | |
9ed18e46 BP |
2556 | /* Modifies the rules listed in 'rules', changing their actions to match those |
2557 | * in 'fm'. | |
79eee1eb | 2558 | * |
9ed18e46 BP |
2559 | * 'ofconn' is used to retrieve the packet buffer specified in fm->buffer_id, |
2560 | * if any. | |
2561 | * | |
2562 | * Returns 0 on success, otherwise an OpenFlow error code. */ | |
90bf1e07 | 2563 | static enum ofperr |
7024dffe BP |
2564 | modify_flows__(struct ofproto *ofproto, struct ofconn *ofconn, |
2565 | const struct ofputil_flow_mod *fm, | |
7ee20df1 | 2566 | const struct ofp_header *request, struct list *rules) |
79eee1eb | 2567 | { |
7ee20df1 | 2568 | struct ofopgroup *group; |
9ed18e46 | 2569 | struct rule *rule; |
79eee1eb | 2570 | |
7024dffe | 2571 | group = ofopgroup_create(ofproto, ofconn, request, fm->buffer_id); |
9ed18e46 BP |
2572 | LIST_FOR_EACH (rule, ofproto_node, rules) { |
2573 | if (!ofputil_actions_equal(fm->actions, fm->n_actions, | |
2574 | rule->actions, rule->n_actions)) { | |
7ee20df1 BP |
2575 | ofoperation_create(group, rule, OFOPERATION_MODIFY); |
2576 | rule->pending->actions = rule->actions; | |
2577 | rule->pending->n_actions = rule->n_actions; | |
2578 | rule->actions = ofputil_actions_clone(fm->actions, fm->n_actions); | |
2579 | rule->n_actions = fm->n_actions; | |
2580 | rule->ofproto->ofproto_class->rule_modify_actions(rule); | |
308881af BP |
2581 | } else { |
2582 | rule->modified = time_msec(); | |
5ecc9d81 | 2583 | } |
9ed18e46 | 2584 | rule->flow_cookie = fm->cookie; |
5ecc9d81 | 2585 | } |
7ee20df1 | 2586 | ofopgroup_submit(group); |
79eee1eb | 2587 | |
7ee20df1 | 2588 | return 0; |
9ed18e46 BP |
2589 | } |
2590 | ||
90bf1e07 BP |
2591 | /* Implements OFPFC_MODIFY. Returns 0 on success or an OpenFlow error code on |
2592 | * failure. | |
9ed18e46 BP |
2593 | * |
2594 | * 'ofconn' is used to retrieve the packet buffer specified in fm->buffer_id, | |
2595 | * if any. */ | |
90bf1e07 | 2596 | static enum ofperr |
7024dffe | 2597 | modify_flows_loose(struct ofproto *ofproto, struct ofconn *ofconn, |
1b9d6420 | 2598 | const struct ofputil_flow_mod *fm, |
7ee20df1 | 2599 | const struct ofp_header *request) |
9ed18e46 | 2600 | { |
9ed18e46 BP |
2601 | struct list rules; |
2602 | int error; | |
2603 | ||
e729e793 JP |
2604 | error = collect_rules_loose(ofproto, fm->table_id, &fm->cr, |
2605 | fm->cookie, fm->cookie_mask, | |
2606 | OFPP_NONE, &rules); | |
9ed18e46 | 2607 | return (error ? error |
7024dffe BP |
2608 | : list_is_empty(&rules) ? add_flow(ofproto, ofconn, fm, request) |
2609 | : modify_flows__(ofproto, ofconn, fm, request, &rules)); | |
79eee1eb BP |
2610 | } |
2611 | ||
2612 | /* Implements OFPFC_MODIFY_STRICT. Returns 0 on success or an OpenFlow error | |
90bf1e07 | 2613 | * code on failure. |
79eee1eb | 2614 | * |
9ed18e46 | 2615 | * 'ofconn' is used to retrieve the packet buffer specified in fm->buffer_id, |
79eee1eb | 2616 | * if any. */ |
90bf1e07 | 2617 | static enum ofperr |
7024dffe | 2618 | modify_flow_strict(struct ofproto *ofproto, struct ofconn *ofconn, |
1b9d6420 | 2619 | const struct ofputil_flow_mod *fm, |
7ee20df1 | 2620 | const struct ofp_header *request) |
79eee1eb | 2621 | { |
9ed18e46 | 2622 | struct list rules; |
6c1491fb BP |
2623 | int error; |
2624 | ||
e729e793 JP |
2625 | error = collect_rules_strict(ofproto, fm->table_id, &fm->cr, |
2626 | fm->cookie, fm->cookie_mask, | |
2627 | OFPP_NONE, &rules); | |
9ed18e46 | 2628 | return (error ? error |
7024dffe BP |
2629 | : list_is_empty(&rules) ? add_flow(ofproto, ofconn, fm, request) |
2630 | : list_is_singleton(&rules) ? modify_flows__(ofproto, ofconn, | |
2631 | fm, request, &rules) | |
9ed18e46 | 2632 | : 0); |
79eee1eb | 2633 | } |
9ed18e46 BP |
2634 | \f |
2635 | /* OFPFC_DELETE implementation. */ | |
79eee1eb | 2636 | |
9ed18e46 BP |
2637 | /* Deletes the rules listed in 'rules'. |
2638 | * | |
2639 | * Returns 0 on success, otherwise an OpenFlow error code. */ | |
90bf1e07 | 2640 | static enum ofperr |
7024dffe BP |
2641 | delete_flows__(struct ofproto *ofproto, struct ofconn *ofconn, |
2642 | const struct ofp_header *request, struct list *rules) | |
064af421 | 2643 | { |
9ed18e46 | 2644 | struct rule *rule, *next; |
7ee20df1 | 2645 | struct ofopgroup *group; |
79eee1eb | 2646 | |
7024dffe | 2647 | group = ofopgroup_create(ofproto, ofconn, request, UINT32_MAX); |
9ed18e46 BP |
2648 | LIST_FOR_EACH_SAFE (rule, next, ofproto_node, rules) { |
2649 | ofproto_rule_send_removed(rule, OFPRR_DELETE); | |
7ee20df1 BP |
2650 | |
2651 | ofoperation_create(group, rule, OFOPERATION_DELETE); | |
2652 | classifier_remove(&ofproto->tables[rule->table_id], &rule->cr); | |
2653 | rule->ofproto->ofproto_class->rule_destruct(rule); | |
79eee1eb | 2654 | } |
7ee20df1 | 2655 | ofopgroup_submit(group); |
79eee1eb | 2656 | |
9ed18e46 | 2657 | return 0; |
79eee1eb | 2658 | } |
79eee1eb BP |
2659 | |
2660 | /* Implements OFPFC_DELETE. */ | |
90bf1e07 | 2661 | static enum ofperr |
7024dffe BP |
2662 | delete_flows_loose(struct ofproto *ofproto, struct ofconn *ofconn, |
2663 | const struct ofputil_flow_mod *fm, | |
7ee20df1 | 2664 | const struct ofp_header *request) |
79eee1eb | 2665 | { |
9ed18e46 | 2666 | struct list rules; |
90bf1e07 | 2667 | enum ofperr error; |
064af421 | 2668 | |
e729e793 JP |
2669 | error = collect_rules_loose(ofproto, fm->table_id, &fm->cr, |
2670 | fm->cookie, fm->cookie_mask, | |
2671 | fm->out_port, &rules); | |
9ed18e46 | 2672 | return (error ? error |
7024dffe BP |
2673 | : !list_is_empty(&rules) ? delete_flows__(ofproto, ofconn, request, |
2674 | &rules) | |
9ed18e46 | 2675 | : 0); |
064af421 BP |
2676 | } |
2677 | ||
79eee1eb | 2678 | /* Implements OFPFC_DELETE_STRICT. */ |
90bf1e07 | 2679 | static enum ofperr |
7024dffe | 2680 | delete_flow_strict(struct ofproto *ofproto, struct ofconn *ofconn, |
1b9d6420 | 2681 | const struct ofputil_flow_mod *fm, |
7ee20df1 | 2682 | const struct ofp_header *request) |
79eee1eb | 2683 | { |
9ed18e46 | 2684 | struct list rules; |
90bf1e07 | 2685 | enum ofperr error; |
79eee1eb | 2686 | |
e729e793 JP |
2687 | error = collect_rules_strict(ofproto, fm->table_id, &fm->cr, |
2688 | fm->cookie, fm->cookie_mask, | |
2689 | fm->out_port, &rules); | |
9ed18e46 | 2690 | return (error ? error |
7024dffe BP |
2691 | : list_is_singleton(&rules) ? delete_flows__(ofproto, ofconn, |
2692 | request, &rules) | |
9ed18e46 | 2693 | : 0); |
abe529af BP |
2694 | } |
2695 | ||
2696 | static void | |
2697 | ofproto_rule_send_removed(struct rule *rule, uint8_t reason) | |
2698 | { | |
2699 | struct ofputil_flow_removed fr; | |
2700 | ||
2701 | if (rule_is_hidden(rule) || !rule->send_flow_removed) { | |
2702 | return; | |
2703 | } | |
2704 | ||
2705 | fr.rule = rule->cr; | |
2706 | fr.cookie = rule->flow_cookie; | |
2707 | fr.reason = reason; | |
2708 | calc_flow_duration__(rule->created, &fr.duration_sec, &fr.duration_nsec); | |
2709 | fr.idle_timeout = rule->idle_timeout; | |
2710 | rule->ofproto->ofproto_class->rule_get_stats(rule, &fr.packet_count, | |
2711 | &fr.byte_count); | |
2712 | ||
2713 | connmgr_send_flow_removed(rule->ofproto->connmgr, &fr); | |
2714 | } | |
2715 | ||
2716 | /* Sends an OpenFlow "flow removed" message with the given 'reason' (either | |
2717 | * OFPRR_HARD_TIMEOUT or OFPRR_IDLE_TIMEOUT), and then removes 'rule' from its | |
2718 | * ofproto. | |
2719 | * | |
2720 | * ofproto implementation ->run() functions should use this function to expire | |
2721 | * OpenFlow flows. */ | |
2722 | void | |
2723 | ofproto_rule_expire(struct rule *rule, uint8_t reason) | |
2724 | { | |
7ee20df1 BP |
2725 | struct ofproto *ofproto = rule->ofproto; |
2726 | struct ofopgroup *group; | |
2727 | ||
abe529af | 2728 | assert(reason == OFPRR_HARD_TIMEOUT || reason == OFPRR_IDLE_TIMEOUT); |
7ee20df1 | 2729 | |
abe529af | 2730 | ofproto_rule_send_removed(rule, reason); |
7ee20df1 | 2731 | |
7024dffe | 2732 | group = ofopgroup_create_unattached(ofproto); |
7ee20df1 BP |
2733 | ofoperation_create(group, rule, OFOPERATION_DELETE); |
2734 | classifier_remove(&ofproto->tables[rule->table_id], &rule->cr); | |
2735 | rule->ofproto->ofproto_class->rule_destruct(rule); | |
2736 | ofopgroup_submit(group); | |
79eee1eb BP |
2737 | } |
2738 | \f | |
90bf1e07 | 2739 | static enum ofperr |
2e4f5fcf | 2740 | handle_flow_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 2741 | { |
a9a2da38 | 2742 | struct ofputil_flow_mod fm; |
90bf1e07 | 2743 | enum ofperr error; |
064af421 | 2744 | |
76589937 | 2745 | error = reject_slave_controller(ofconn); |
9deba63b BP |
2746 | if (error) { |
2747 | return error; | |
2748 | } | |
3052b0c5 | 2749 | |
00794817 | 2750 | error = ofputil_decode_flow_mod(&fm, oh, |
6c1491fb | 2751 | ofconn_get_flow_mod_table_id(ofconn)); |
064af421 BP |
2752 | if (error) { |
2753 | return error; | |
2754 | } | |
2755 | ||
2e4f5fcf BP |
2756 | /* We do not support the emergency flow cache. It will hopefully get |
2757 | * dropped from OpenFlow in the near future. */ | |
2758 | if (fm.flags & OFPFF_EMERG) { | |
49bdc010 JP |
2759 | /* There isn't a good fit for an error code, so just state that the |
2760 | * flow table is full. */ | |
90bf1e07 | 2761 | return OFPERR_OFPFMFC_ALL_TABLES_FULL; |
49bdc010 JP |
2762 | } |
2763 | ||
75a75043 BP |
2764 | return handle_flow_mod__(ofconn_get_ofproto(ofconn), ofconn, &fm, oh); |
2765 | } | |
2766 | ||
90bf1e07 | 2767 | static enum ofperr |
75a75043 BP |
2768 | handle_flow_mod__(struct ofproto *ofproto, struct ofconn *ofconn, |
2769 | const struct ofputil_flow_mod *fm, | |
2770 | const struct ofp_header *oh) | |
2771 | { | |
2772 | if (ofproto->n_pending >= 50) { | |
2773 | assert(!list_is_empty(&ofproto->pending)); | |
2774 | return OFPROTO_POSTPONE; | |
2775 | } | |
2776 | ||
2777 | switch (fm->command) { | |
3052b0c5 | 2778 | case OFPFC_ADD: |
75a75043 | 2779 | return add_flow(ofproto, ofconn, fm, oh); |
3052b0c5 BP |
2780 | |
2781 | case OFPFC_MODIFY: | |
75a75043 | 2782 | return modify_flows_loose(ofproto, ofconn, fm, oh); |
3052b0c5 BP |
2783 | |
2784 | case OFPFC_MODIFY_STRICT: | |
75a75043 | 2785 | return modify_flow_strict(ofproto, ofconn, fm, oh); |
3052b0c5 BP |
2786 | |
2787 | case OFPFC_DELETE: | |
75a75043 | 2788 | return delete_flows_loose(ofproto, ofconn, fm, oh); |
3052b0c5 BP |
2789 | |
2790 | case OFPFC_DELETE_STRICT: | |
75a75043 | 2791 | return delete_flow_strict(ofproto, ofconn, fm, oh); |
3052b0c5 BP |
2792 | |
2793 | default: | |
75a75043 | 2794 | if (fm->command > 0xff) { |
6c1491fb BP |
2795 | VLOG_WARN_RL(&rl, "flow_mod has explicit table_id but " |
2796 | "flow_mod_table_id extension is not enabled"); | |
2797 | } | |
90bf1e07 | 2798 | return OFPERR_OFPFMFC_BAD_COMMAND; |
3052b0c5 BP |
2799 | } |
2800 | } | |
2801 | ||
90bf1e07 | 2802 | static enum ofperr |
d1e2cf21 | 2803 | handle_role_request(struct ofconn *ofconn, const struct ofp_header *oh) |
9deba63b | 2804 | { |
d1e2cf21 | 2805 | struct nx_role_request *nrr = (struct nx_role_request *) oh; |
9deba63b BP |
2806 | struct nx_role_request *reply; |
2807 | struct ofpbuf *buf; | |
2808 | uint32_t role; | |
2809 | ||
1ce0a5fa | 2810 | if (ofconn_get_type(ofconn) != OFCONN_PRIMARY) { |
90bf1e07 | 2811 | return OFPERR_OFPBRC_EPERM; |
9deba63b BP |
2812 | } |
2813 | ||
2814 | role = ntohl(nrr->role); | |
2815 | if (role != NX_ROLE_OTHER && role != NX_ROLE_MASTER | |
2816 | && role != NX_ROLE_SLAVE) { | |
90bf1e07 | 2817 | return OFPERR_NXBRC_BAD_ROLE; |
9deba63b BP |
2818 | } |
2819 | ||
7ee20df1 BP |
2820 | if (ofconn_get_role(ofconn) != role |
2821 | && ofconn_has_pending_opgroups(ofconn)) { | |
2822 | return OFPROTO_POSTPONE; | |
2823 | } | |
2824 | ||
1ce0a5fa | 2825 | ofconn_set_role(ofconn, role); |
9deba63b | 2826 | |
d1e2cf21 | 2827 | reply = make_nxmsg_xid(sizeof *reply, NXT_ROLE_REPLY, oh->xid, &buf); |
9deba63b | 2828 | reply->role = htonl(role); |
b0421aa2 | 2829 | ofconn_send_reply(ofconn, buf); |
9deba63b BP |
2830 | |
2831 | return 0; | |
2832 | } | |
2833 | ||
90bf1e07 | 2834 | static enum ofperr |
6c1491fb BP |
2835 | handle_nxt_flow_mod_table_id(struct ofconn *ofconn, |
2836 | const struct ofp_header *oh) | |
2837 | { | |
73dbf4ab BP |
2838 | const struct nx_flow_mod_table_id *msg |
2839 | = (const struct nx_flow_mod_table_id *) oh; | |
6c1491fb BP |
2840 | |
2841 | ofconn_set_flow_mod_table_id(ofconn, msg->set != 0); | |
2842 | return 0; | |
2843 | } | |
2844 | ||
90bf1e07 | 2845 | static enum ofperr |
d1e2cf21 | 2846 | handle_nxt_set_flow_format(struct ofconn *ofconn, const struct ofp_header *oh) |
09246b99 | 2847 | { |
73dbf4ab BP |
2848 | const struct nx_set_flow_format *msg |
2849 | = (const struct nx_set_flow_format *) oh; | |
09246b99 | 2850 | uint32_t format; |
09246b99 BP |
2851 | |
2852 | format = ntohl(msg->format); | |
7ee20df1 | 2853 | if (format != NXFF_OPENFLOW10 && format != NXFF_NXM) { |
90bf1e07 | 2854 | return OFPERR_OFPBRC_EPERM; |
09246b99 | 2855 | } |
7ee20df1 BP |
2856 | |
2857 | if (format != ofconn_get_flow_format(ofconn) | |
2858 | && ofconn_has_pending_opgroups(ofconn)) { | |
2859 | /* Avoid sending async messages in surprising flow format. */ | |
2860 | return OFPROTO_POSTPONE; | |
2861 | } | |
2862 | ||
2863 | ofconn_set_flow_format(ofconn, format); | |
2864 | return 0; | |
09246b99 BP |
2865 | } |
2866 | ||
90bf1e07 | 2867 | static enum ofperr |
54834960 EJ |
2868 | handle_nxt_set_packet_in_format(struct ofconn *ofconn, |
2869 | const struct ofp_header *oh) | |
2870 | { | |
73dbf4ab | 2871 | const struct nx_set_packet_in_format *msg; |
54834960 EJ |
2872 | uint32_t format; |
2873 | ||
73dbf4ab | 2874 | msg = (const struct nx_set_packet_in_format *) oh; |
54834960 EJ |
2875 | format = ntohl(msg->format); |
2876 | if (format != NXFF_OPENFLOW10 && format != NXPIF_NXM) { | |
90bf1e07 | 2877 | return OFPERR_OFPBRC_EPERM; |
54834960 EJ |
2878 | } |
2879 | ||
2880 | if (format != ofconn_get_packet_in_format(ofconn) | |
2881 | && ofconn_has_pending_opgroups(ofconn)) { | |
2882 | /* Avoid sending async message in surprsing packet in format. */ | |
2883 | return OFPROTO_POSTPONE; | |
2884 | } | |
2885 | ||
2886 | ofconn_set_packet_in_format(ofconn, format); | |
2887 | return 0; | |
2888 | } | |
2889 | ||
90bf1e07 | 2890 | static enum ofperr |
d1e2cf21 | 2891 | handle_barrier_request(struct ofconn *ofconn, const struct ofp_header *oh) |
246e61ea JP |
2892 | { |
2893 | struct ofp_header *ob; | |
2894 | struct ofpbuf *buf; | |
2895 | ||
7ee20df1 BP |
2896 | if (ofconn_has_pending_opgroups(ofconn)) { |
2897 | return OFPROTO_POSTPONE; | |
2898 | } | |
2899 | ||
246e61ea | 2900 | ob = make_openflow_xid(sizeof *ob, OFPT_BARRIER_REPLY, oh->xid, &buf); |
b0421aa2 | 2901 | ofconn_send_reply(ofconn, buf); |
246e61ea JP |
2902 | return 0; |
2903 | } | |
2904 | ||
90bf1e07 | 2905 | static enum ofperr |
d1e2cf21 | 2906 | handle_openflow__(struct ofconn *ofconn, const struct ofpbuf *msg) |
064af421 | 2907 | { |
d1e2cf21 BP |
2908 | const struct ofp_header *oh = msg->data; |
2909 | const struct ofputil_msg_type *type; | |
90bf1e07 | 2910 | enum ofperr error; |
064af421 | 2911 | |
d1e2cf21 BP |
2912 | error = ofputil_decode_msg_type(oh, &type); |
2913 | if (error) { | |
2914 | return error; | |
2915 | } | |
064af421 | 2916 | |
d1e2cf21 BP |
2917 | switch (ofputil_msg_type_code(type)) { |
2918 | /* OpenFlow requests. */ | |
2919 | case OFPUTIL_OFPT_ECHO_REQUEST: | |
2920 | return handle_echo_request(ofconn, oh); | |
064af421 | 2921 | |
d1e2cf21 BP |
2922 | case OFPUTIL_OFPT_FEATURES_REQUEST: |
2923 | return handle_features_request(ofconn, oh); | |
064af421 | 2924 | |
d1e2cf21 BP |
2925 | case OFPUTIL_OFPT_GET_CONFIG_REQUEST: |
2926 | return handle_get_config_request(ofconn, oh); | |
064af421 | 2927 | |
d1e2cf21 BP |
2928 | case OFPUTIL_OFPT_SET_CONFIG: |
2929 | return handle_set_config(ofconn, msg->data); | |
064af421 | 2930 | |
d1e2cf21 BP |
2931 | case OFPUTIL_OFPT_PACKET_OUT: |
2932 | return handle_packet_out(ofconn, oh); | |
064af421 | 2933 | |
d1e2cf21 BP |
2934 | case OFPUTIL_OFPT_PORT_MOD: |
2935 | return handle_port_mod(ofconn, oh); | |
064af421 | 2936 | |
d1e2cf21 | 2937 | case OFPUTIL_OFPT_FLOW_MOD: |
2e4f5fcf | 2938 | return handle_flow_mod(ofconn, oh); |
064af421 | 2939 | |
d1e2cf21 BP |
2940 | case OFPUTIL_OFPT_BARRIER_REQUEST: |
2941 | return handle_barrier_request(ofconn, oh); | |
064af421 | 2942 | |
d1e2cf21 BP |
2943 | /* OpenFlow replies. */ |
2944 | case OFPUTIL_OFPT_ECHO_REPLY: | |
2945 | return 0; | |
246e61ea | 2946 | |
d1e2cf21 | 2947 | /* Nicira extension requests. */ |
d1e2cf21 BP |
2948 | case OFPUTIL_NXT_ROLE_REQUEST: |
2949 | return handle_role_request(ofconn, oh); | |
2950 | ||
6c1491fb BP |
2951 | case OFPUTIL_NXT_FLOW_MOD_TABLE_ID: |
2952 | return handle_nxt_flow_mod_table_id(ofconn, oh); | |
d1e2cf21 BP |
2953 | |
2954 | case OFPUTIL_NXT_SET_FLOW_FORMAT: | |
2955 | return handle_nxt_set_flow_format(ofconn, oh); | |
2956 | ||
54834960 EJ |
2957 | case OFPUTIL_NXT_SET_PACKET_IN_FORMAT: |
2958 | return handle_nxt_set_packet_in_format(ofconn, oh); | |
2959 | ||
d1e2cf21 | 2960 | case OFPUTIL_NXT_FLOW_MOD: |
2e4f5fcf | 2961 | return handle_flow_mod(ofconn, oh); |
d1e2cf21 | 2962 | |
349adfb2 | 2963 | /* Statistics requests. */ |
d1e2cf21 | 2964 | case OFPUTIL_OFPST_DESC_REQUEST: |
63f2140a | 2965 | return handle_desc_stats_request(ofconn, msg->data); |
d1e2cf21 BP |
2966 | |
2967 | case OFPUTIL_OFPST_FLOW_REQUEST: | |
349adfb2 | 2968 | case OFPUTIL_NXST_FLOW_REQUEST: |
63f2140a | 2969 | return handle_flow_stats_request(ofconn, msg->data); |
d1e2cf21 BP |
2970 | |
2971 | case OFPUTIL_OFPST_AGGREGATE_REQUEST: | |
76c93b22 | 2972 | case OFPUTIL_NXST_AGGREGATE_REQUEST: |
63f2140a | 2973 | return handle_aggregate_stats_request(ofconn, msg->data); |
d1e2cf21 BP |
2974 | |
2975 | case OFPUTIL_OFPST_TABLE_REQUEST: | |
63f2140a | 2976 | return handle_table_stats_request(ofconn, msg->data); |
d1e2cf21 BP |
2977 | |
2978 | case OFPUTIL_OFPST_PORT_REQUEST: | |
63f2140a | 2979 | return handle_port_stats_request(ofconn, msg->data); |
d1e2cf21 BP |
2980 | |
2981 | case OFPUTIL_OFPST_QUEUE_REQUEST: | |
63f2140a | 2982 | return handle_queue_stats_request(ofconn, msg->data); |
d1e2cf21 | 2983 | |
8f93e93c | 2984 | case OFPUTIL_MSG_INVALID: |
d1e2cf21 BP |
2985 | case OFPUTIL_OFPT_HELLO: |
2986 | case OFPUTIL_OFPT_ERROR: | |
2987 | case OFPUTIL_OFPT_FEATURES_REPLY: | |
2988 | case OFPUTIL_OFPT_GET_CONFIG_REPLY: | |
2989 | case OFPUTIL_OFPT_PACKET_IN: | |
2990 | case OFPUTIL_OFPT_FLOW_REMOVED: | |
2991 | case OFPUTIL_OFPT_PORT_STATUS: | |
2992 | case OFPUTIL_OFPT_BARRIER_REPLY: | |
2993 | case OFPUTIL_OFPT_QUEUE_GET_CONFIG_REQUEST: | |
2994 | case OFPUTIL_OFPT_QUEUE_GET_CONFIG_REPLY: | |
2995 | case OFPUTIL_OFPST_DESC_REPLY: | |
2996 | case OFPUTIL_OFPST_FLOW_REPLY: | |
2997 | case OFPUTIL_OFPST_QUEUE_REPLY: | |
2998 | case OFPUTIL_OFPST_PORT_REPLY: | |
2999 | case OFPUTIL_OFPST_TABLE_REPLY: | |
3000 | case OFPUTIL_OFPST_AGGREGATE_REPLY: | |
d1e2cf21 BP |
3001 | case OFPUTIL_NXT_ROLE_REPLY: |
3002 | case OFPUTIL_NXT_FLOW_REMOVED: | |
54834960 | 3003 | case OFPUTIL_NXT_PACKET_IN: |
d1e2cf21 BP |
3004 | case OFPUTIL_NXST_FLOW_REPLY: |
3005 | case OFPUTIL_NXST_AGGREGATE_REPLY: | |
064af421 | 3006 | default: |
d1e2cf21 | 3007 | if (oh->type == OFPT_STATS_REQUEST || oh->type == OFPT_STATS_REPLY) { |
90bf1e07 | 3008 | return OFPERR_OFPBRC_BAD_STAT; |
d1e2cf21 | 3009 | } else { |
90bf1e07 | 3010 | return OFPERR_OFPBRC_BAD_TYPE; |
d1e2cf21 | 3011 | } |
064af421 | 3012 | } |
d1e2cf21 | 3013 | } |
064af421 | 3014 | |
7ee20df1 | 3015 | static bool |
d1e2cf21 BP |
3016 | handle_openflow(struct ofconn *ofconn, struct ofpbuf *ofp_msg) |
3017 | { | |
3018 | int error = handle_openflow__(ofconn, ofp_msg); | |
7ee20df1 | 3019 | if (error && error != OFPROTO_POSTPONE) { |
1be5ff75 | 3020 | ofconn_send_error(ofconn, ofp_msg->data, error); |
064af421 | 3021 | } |
d1e2cf21 | 3022 | COVERAGE_INC(ofproto_recv_openflow); |
7ee20df1 BP |
3023 | return error != OFPROTO_POSTPONE; |
3024 | } | |
3025 | \f | |
3026 | /* Asynchronous operations. */ | |
3027 | ||
3028 | /* Creates and returns a new ofopgroup that is not associated with any | |
3029 | * OpenFlow connection. | |
3030 | * | |
3031 | * The caller should add operations to the returned group with | |
3032 | * ofoperation_create() and then submit it with ofopgroup_submit(). */ | |
3033 | static struct ofopgroup * | |
7024dffe | 3034 | ofopgroup_create_unattached(struct ofproto *ofproto) |
7ee20df1 BP |
3035 | { |
3036 | struct ofopgroup *group = xzalloc(sizeof *group); | |
3037 | group->ofproto = ofproto; | |
3038 | list_init(&group->ofproto_node); | |
3039 | list_init(&group->ops); | |
3040 | list_init(&group->ofconn_node); | |
3041 | return group; | |
3042 | } | |
3043 | ||
7024dffe BP |
3044 | /* Creates and returns a new ofopgroup for 'ofproto'. |
3045 | * | |
3046 | * If 'ofconn' is NULL, the new ofopgroup is not associated with any OpenFlow | |
3047 | * connection. The 'request' and 'buffer_id' arguments are ignored. | |
3048 | * | |
3049 | * If 'ofconn' is nonnull, then the new ofopgroup is associated with 'ofconn'. | |
3050 | * If the ofopgroup eventually fails, then the error reply will include | |
3051 | * 'request'. If the ofopgroup eventually succeeds, then the packet with | |
3052 | * buffer id 'buffer_id' on 'ofconn' will be sent by 'ofconn''s ofproto. | |
7ee20df1 BP |
3053 | * |
3054 | * The caller should add operations to the returned group with | |
3055 | * ofoperation_create() and then submit it with ofopgroup_submit(). */ | |
3056 | static struct ofopgroup * | |
7024dffe BP |
3057 | ofopgroup_create(struct ofproto *ofproto, struct ofconn *ofconn, |
3058 | const struct ofp_header *request, uint32_t buffer_id) | |
7ee20df1 | 3059 | { |
7024dffe BP |
3060 | struct ofopgroup *group = ofopgroup_create_unattached(ofproto); |
3061 | if (ofconn) { | |
3062 | size_t request_len = ntohs(request->length); | |
7ee20df1 | 3063 | |
7024dffe | 3064 | assert(ofconn_get_ofproto(ofconn) == ofproto); |
7ee20df1 | 3065 | |
7024dffe BP |
3066 | ofconn_add_opgroup(ofconn, &group->ofconn_node); |
3067 | group->ofconn = ofconn; | |
3068 | group->request = xmemdup(request, MIN(request_len, 64)); | |
3069 | group->buffer_id = buffer_id; | |
3070 | } | |
7ee20df1 BP |
3071 | return group; |
3072 | } | |
3073 | ||
3074 | /* Submits 'group' for processing. | |
3075 | * | |
3076 | * If 'group' contains no operations (e.g. none were ever added, or all of the | |
3077 | * ones that were added completed synchronously), then it is destroyed | |
3078 | * immediately. Otherwise it is added to the ofproto's list of pending | |
3079 | * groups. */ | |
3080 | static void | |
3081 | ofopgroup_submit(struct ofopgroup *group) | |
3082 | { | |
3083 | if (list_is_empty(&group->ops)) { | |
3084 | ofopgroup_destroy(group); | |
3085 | } else { | |
3086 | list_push_back(&group->ofproto->pending, &group->ofproto_node); | |
dd5616b3 | 3087 | group->ofproto->n_pending++; |
7ee20df1 BP |
3088 | } |
3089 | } | |
3090 | ||
3091 | static void | |
3092 | ofopgroup_destroy(struct ofopgroup *group) | |
3093 | { | |
3094 | assert(list_is_empty(&group->ops)); | |
3095 | if (!list_is_empty(&group->ofproto_node)) { | |
dd5616b3 BP |
3096 | assert(group->ofproto->n_pending > 0); |
3097 | group->ofproto->n_pending--; | |
7ee20df1 BP |
3098 | list_remove(&group->ofproto_node); |
3099 | } | |
3100 | if (!list_is_empty(&group->ofconn_node)) { | |
3101 | list_remove(&group->ofconn_node); | |
3102 | if (group->error) { | |
3103 | ofconn_send_error(group->ofconn, group->request, group->error); | |
3104 | } | |
3105 | connmgr_retry(group->ofproto->connmgr); | |
3106 | } | |
3107 | free(group->request); | |
3108 | free(group); | |
3109 | } | |
3110 | ||
3111 | /* Initiates a new operation on 'rule', of the specified 'type', within | |
3112 | * 'group'. Prior to calling, 'rule' must not have any pending operation. */ | |
3113 | static void | |
3114 | ofoperation_create(struct ofopgroup *group, struct rule *rule, | |
3115 | enum ofoperation_type type) | |
3116 | { | |
3117 | struct ofoperation *op; | |
3118 | ||
3119 | assert(!rule->pending); | |
3120 | ||
3121 | op = rule->pending = xzalloc(sizeof *op); | |
3122 | op->group = group; | |
3123 | list_push_back(&group->ops, &op->group_node); | |
3124 | op->rule = rule; | |
3125 | op->type = type; | |
3126 | op->status = -1; | |
3127 | op->flow_cookie = rule->flow_cookie; | |
3128 | ||
3129 | if (type == OFOPERATION_DELETE) { | |
3130 | hmap_insert(&op->group->ofproto->deletions, &op->hmap_node, | |
3131 | cls_rule_hash(&rule->cr, rule->table_id)); | |
3132 | } | |
3133 | } | |
3134 | ||
3135 | static void | |
3136 | ofoperation_destroy(struct ofoperation *op) | |
3137 | { | |
3138 | struct ofopgroup *group = op->group; | |
3139 | ||
3140 | if (op->rule) { | |
3141 | op->rule->pending = NULL; | |
3142 | } | |
3143 | if (op->type == OFOPERATION_DELETE) { | |
3144 | hmap_remove(&group->ofproto->deletions, &op->hmap_node); | |
3145 | } | |
3146 | list_remove(&op->group_node); | |
3147 | free(op->actions); | |
3148 | free(op); | |
3149 | ||
3150 | if (list_is_empty(&group->ops) && !list_is_empty(&group->ofproto_node)) { | |
3151 | ofopgroup_destroy(group); | |
3152 | } | |
3153 | } | |
3154 | ||
3155 | /* Indicates that 'op' completed with status 'error', which is either 0 to | |
90bf1e07 | 3156 | * indicate success or an OpenFlow error code on failure. |
7ee20df1 | 3157 | * |
a6a62132 BP |
3158 | * If 'error' is 0, indicating success, the operation will be committed |
3159 | * permanently to the flow table. There is one interesting subcase: | |
3160 | * | |
3161 | * - If 'op' is an "add flow" operation that is replacing an existing rule in | |
3162 | * the flow table (the "victim" rule) by a new one, then the caller must | |
3163 | * have uninitialized any derived state in the victim rule, as in step 5 in | |
3164 | * the "Life Cycle" in ofproto/ofproto-provider.h. ofoperation_complete() | |
3165 | * performs steps 6 and 7 for the victim rule, most notably by calling its | |
3166 | * ->rule_dealloc() function. | |
3167 | * | |
3168 | * If 'error' is nonzero, then generally the operation will be rolled back: | |
3169 | * | |
3170 | * - If 'op' is an "add flow" operation, ofproto removes the new rule or | |
3171 | * restores the original rule. The caller must have uninitialized any | |
3172 | * derived state in the new rule, as in step 5 of in the "Life Cycle" in | |
3173 | * ofproto/ofproto-provider.h. ofoperation_complete() performs steps 6 and | |
3174 | * and 7 for the new rule, calling its ->rule_dealloc() function. | |
3175 | * | |
3176 | * - If 'op' is a "modify flow" operation, ofproto restores the original | |
3177 | * actions. | |
3178 | * | |
3179 | * - 'op' must not be a "delete flow" operation. Removing a rule is not | |
3180 | * allowed to fail. It must always succeed. | |
7ee20df1 | 3181 | * |
5bee6e26 JP |
3182 | * Please see the large comment in ofproto/ofproto-provider.h titled |
3183 | * "Asynchronous Operation Support" for more information. */ | |
7ee20df1 | 3184 | void |
90bf1e07 | 3185 | ofoperation_complete(struct ofoperation *op, enum ofperr error) |
7ee20df1 BP |
3186 | { |
3187 | struct ofopgroup *group = op->group; | |
3188 | struct rule *rule = op->rule; | |
52a90c29 BP |
3189 | struct ofproto *ofproto = rule->ofproto; |
3190 | struct classifier *table = &ofproto->tables[rule->table_id]; | |
7ee20df1 BP |
3191 | |
3192 | assert(rule->pending == op); | |
3193 | assert(op->status < 0); | |
7ee20df1 BP |
3194 | |
3195 | if (!error | |
3196 | && !group->error | |
3197 | && op->type != OFOPERATION_DELETE | |
3198 | && group->ofconn | |
3199 | && group->buffer_id != UINT32_MAX | |
3200 | && list_is_singleton(&op->group_node)) { | |
3201 | struct ofpbuf *packet; | |
3202 | uint16_t in_port; | |
3203 | ||
3204 | error = ofconn_pktbuf_retrieve(group->ofconn, group->buffer_id, | |
3205 | &packet, &in_port); | |
3206 | if (packet) { | |
3207 | assert(!error); | |
3208 | error = rule_execute(rule, in_port, packet); | |
3209 | } | |
3210 | } | |
3211 | if (!group->error) { | |
3212 | group->error = error; | |
3213 | } | |
3214 | ||
3215 | switch (op->type) { | |
3216 | case OFOPERATION_ADD: | |
3217 | if (!error) { | |
3218 | if (op->victim) { | |
3219 | ofproto_rule_destroy__(op->victim); | |
3220 | } | |
9075907c BP |
3221 | if ((rule->cr.wc.vlan_tci_mask & htons(VLAN_VID_MASK)) |
3222 | == htons(VLAN_VID_MASK)) { | |
3223 | if (ofproto->vlan_bitmap) { | |
3224 | uint16_t vid = vlan_tci_to_vid(rule->cr.flow.vlan_tci); | |
3225 | ||
3226 | if (!bitmap_is_set(ofproto->vlan_bitmap, vid)) { | |
3227 | bitmap_set1(ofproto->vlan_bitmap, vid); | |
3228 | ofproto->vlans_changed = true; | |
3229 | } | |
3230 | } else { | |
52a90c29 BP |
3231 | ofproto->vlans_changed = true; |
3232 | } | |
3233 | } | |
7ee20df1 BP |
3234 | } else { |
3235 | if (op->victim) { | |
3236 | classifier_replace(table, &op->victim->cr); | |
3237 | op->victim = NULL; | |
3238 | } else { | |
3239 | classifier_remove(table, &rule->cr); | |
3240 | } | |
3241 | ofproto_rule_destroy__(rule); | |
3242 | } | |
3243 | op->victim = NULL; | |
3244 | break; | |
3245 | ||
3246 | case OFOPERATION_DELETE: | |
3247 | assert(!error); | |
3248 | ofproto_rule_destroy__(rule); | |
3249 | op->rule = NULL; | |
3250 | break; | |
3251 | ||
3252 | case OFOPERATION_MODIFY: | |
308881af BP |
3253 | if (!error) { |
3254 | rule->modified = time_msec(); | |
3255 | } else { | |
7ee20df1 BP |
3256 | free(rule->actions); |
3257 | rule->actions = op->actions; | |
3258 | rule->n_actions = op->n_actions; | |
3259 | op->actions = NULL; | |
3260 | } | |
3261 | break; | |
3262 | ||
3263 | default: | |
3264 | NOT_REACHED(); | |
3265 | } | |
3266 | ofoperation_destroy(op); | |
3267 | } | |
3268 | ||
3269 | struct rule * | |
3270 | ofoperation_get_victim(struct ofoperation *op) | |
3271 | { | |
3272 | assert(op->type == OFOPERATION_ADD); | |
3273 | return op->victim; | |
064af421 BP |
3274 | } |
3275 | \f | |
064af421 | 3276 | static uint64_t |
fa60c019 | 3277 | pick_datapath_id(const struct ofproto *ofproto) |
064af421 | 3278 | { |
fa60c019 | 3279 | const struct ofport *port; |
064af421 | 3280 | |
abe529af | 3281 | port = ofproto_get_port(ofproto, OFPP_LOCAL); |
fa60c019 BP |
3282 | if (port) { |
3283 | uint8_t ea[ETH_ADDR_LEN]; | |
3284 | int error; | |
3285 | ||
3286 | error = netdev_get_etheraddr(port->netdev, ea); | |
064af421 BP |
3287 | if (!error) { |
3288 | return eth_addr_to_uint64(ea); | |
3289 | } | |
3290 | VLOG_WARN("could not get MAC address for %s (%s)", | |
fa60c019 | 3291 | netdev_get_name(port->netdev), strerror(error)); |
064af421 | 3292 | } |
fa60c019 | 3293 | return ofproto->fallback_dpid; |
064af421 BP |
3294 | } |
3295 | ||
3296 | static uint64_t | |
3297 | pick_fallback_dpid(void) | |
3298 | { | |
3299 | uint8_t ea[ETH_ADDR_LEN]; | |
70150daf | 3300 | eth_addr_nicira_random(ea); |
064af421 BP |
3301 | return eth_addr_to_uint64(ea); |
3302 | } | |
3303 | \f | |
abe529af | 3304 | /* unixctl commands. */ |
7aa697dd | 3305 | |
abe529af | 3306 | struct ofproto * |
2ac6bedd | 3307 | ofproto_lookup(const char *name) |
7aa697dd | 3308 | { |
2ac6bedd | 3309 | struct ofproto *ofproto; |
7aa697dd | 3310 | |
2ac6bedd BP |
3311 | HMAP_FOR_EACH_WITH_HASH (ofproto, hmap_node, hash_string(name, 0), |
3312 | &all_ofprotos) { | |
3313 | if (!strcmp(ofproto->name, name)) { | |
3314 | return ofproto; | |
3315 | } | |
7aa697dd | 3316 | } |
2ac6bedd | 3317 | return NULL; |
7aa697dd BP |
3318 | } |
3319 | ||
3320 | static void | |
0e15264f BP |
3321 | ofproto_unixctl_list(struct unixctl_conn *conn, int argc OVS_UNUSED, |
3322 | const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED) | |
7aa697dd | 3323 | { |
7aa697dd | 3324 | struct ofproto *ofproto; |
7aa697dd | 3325 | struct ds results; |
7aa697dd | 3326 | |
7aa697dd | 3327 | ds_init(&results); |
2ac6bedd BP |
3328 | HMAP_FOR_EACH (ofproto, hmap_node, &all_ofprotos) { |
3329 | ds_put_format(&results, "%s\n", ofproto->name); | |
7aa697dd | 3330 | } |
7aa697dd BP |
3331 | unixctl_command_reply(conn, 200, ds_cstr(&results)); |
3332 | ds_destroy(&results); | |
7aa697dd BP |
3333 | } |
3334 | ||
3335 | static void | |
3336 | ofproto_unixctl_init(void) | |
3337 | { | |
3338 | static bool registered; | |
3339 | if (registered) { | |
3340 | return; | |
3341 | } | |
3342 | registered = true; | |
3343 | ||
0e15264f BP |
3344 | unixctl_command_register("ofproto/list", "", 0, 0, |
3345 | ofproto_unixctl_list, NULL); | |
064af421 | 3346 | } |
52a90c29 BP |
3347 | \f |
3348 | /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.) | |
3349 | * | |
3350 | * This is deprecated. It is only for compatibility with broken device drivers | |
3351 | * in old versions of Linux that do not properly support VLANs when VLAN | |
3352 | * devices are not used. When broken device drivers are no longer in | |
3353 | * widespread use, we will delete these interfaces. */ | |
3354 | ||
3355 | /* Sets a 1-bit in the 4096-bit 'vlan_bitmap' for each VLAN ID that is matched | |
3356 | * (exactly) by an OpenFlow rule in 'ofproto'. */ | |
3357 | void | |
3358 | ofproto_get_vlan_usage(struct ofproto *ofproto, unsigned long int *vlan_bitmap) | |
3359 | { | |
3360 | const struct classifier *cls; | |
3361 | ||
3362 | free(ofproto->vlan_bitmap); | |
3363 | ofproto->vlan_bitmap = bitmap_allocate(4096); | |
3364 | ofproto->vlans_changed = false; | |
3365 | ||
3366 | OFPROTO_FOR_EACH_TABLE (cls, ofproto) { | |
3367 | const struct cls_table *table; | |
3368 | ||
3369 | HMAP_FOR_EACH (table, hmap_node, &cls->tables) { | |
9075907c BP |
3370 | if ((table->wc.vlan_tci_mask & htons(VLAN_VID_MASK)) |
3371 | == htons(VLAN_VID_MASK)) { | |
52a90c29 BP |
3372 | const struct cls_rule *rule; |
3373 | ||
3374 | HMAP_FOR_EACH (rule, hmap_node, &table->rules) { | |
3375 | uint16_t vid = vlan_tci_to_vid(rule->flow.vlan_tci); | |
3376 | bitmap_set1(vlan_bitmap, vid); | |
3377 | bitmap_set1(ofproto->vlan_bitmap, vid); | |
3378 | } | |
3379 | } | |
3380 | } | |
3381 | } | |
3382 | } | |
3383 | ||
3384 | /* Returns true if new VLANs have come into use by the flow table since the | |
3385 | * last call to ofproto_get_vlan_usage(). | |
3386 | * | |
3387 | * We don't track when old VLANs stop being used. */ | |
3388 | bool | |
3389 | ofproto_has_vlan_usage_changed(const struct ofproto *ofproto) | |
3390 | { | |
3391 | return ofproto->vlans_changed; | |
3392 | } | |
3393 | ||
3394 | /* Configures a VLAN splinter binding between the ports identified by OpenFlow | |
3395 | * port numbers 'vlandev_ofp_port' and 'realdev_ofp_port'. If | |
3396 | * 'realdev_ofp_port' is nonzero, then the VLAN device is enslaved to the real | |
3397 | * device as a VLAN splinter for VLAN ID 'vid'. If 'realdev_ofp_port' is zero, | |
3398 | * then the VLAN device is un-enslaved. */ | |
3399 | int | |
3400 | ofproto_port_set_realdev(struct ofproto *ofproto, uint16_t vlandev_ofp_port, | |
3401 | uint16_t realdev_ofp_port, int vid) | |
3402 | { | |
3403 | struct ofport *ofport; | |
3404 | int error; | |
3405 | ||
3406 | assert(vlandev_ofp_port != realdev_ofp_port); | |
3407 | ||
3408 | ofport = ofproto_get_port(ofproto, vlandev_ofp_port); | |
3409 | if (!ofport) { | |
3410 | VLOG_WARN("%s: cannot set realdev on nonexistent port %"PRIu16, | |
3411 | ofproto->name, vlandev_ofp_port); | |
3412 | return EINVAL; | |
3413 | } | |
3414 | ||
3415 | if (!ofproto->ofproto_class->set_realdev) { | |
3416 | if (!vlandev_ofp_port) { | |
3417 | return 0; | |
3418 | } | |
3419 | VLOG_WARN("%s: vlan splinters not supported", ofproto->name); | |
3420 | return EOPNOTSUPP; | |
3421 | } | |
3422 | ||
3423 | error = ofproto->ofproto_class->set_realdev(ofport, realdev_ofp_port, vid); | |
3424 | if (error) { | |
3425 | VLOG_WARN("%s: setting realdev on port %"PRIu16" (%s) failed (%s)", | |
3426 | ofproto->name, vlandev_ofp_port, | |
3427 | netdev_get_name(ofport->netdev), strerror(error)); | |
3428 | } | |
3429 | return error; | |
3430 | } |