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064af421 | 1 | /* |
db5ce514 | 2 | * Copyright (c) 2009, 2010, 2011 Nicira Networks. |
43253595 | 3 | * Copyright (c) 2010 Jean Tourrilhes - HP-Labs. |
064af421 | 4 | * |
a14bc59f BP |
5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
6 | * you may not use this file except in compliance with the License. | |
7 | * You may obtain a copy of the License at: | |
064af421 | 8 | * |
a14bc59f BP |
9 | * http://www.apache.org/licenses/LICENSE-2.0 |
10 | * | |
11 | * Unless required by applicable law or agreed to in writing, software | |
12 | * distributed under the License is distributed on an "AS IS" BASIS, | |
13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
14 | * See the License for the specific language governing permissions and | |
15 | * limitations under the License. | |
064af421 BP |
16 | */ |
17 | ||
18 | #include <config.h> | |
19 | #include "ofproto.h" | |
20 | #include <errno.h> | |
21 | #include <inttypes.h> | |
064af421 BP |
22 | #include <stdbool.h> |
23 | #include <stdlib.h> | |
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" |
064af421 | 34 | #include "ofp-print.h" |
fa37b408 | 35 | #include "ofp-util.h" |
064af421 | 36 | #include "ofpbuf.h" |
5bee6e26 | 37 | #include "ofproto-provider.h" |
064af421 BP |
38 | #include "openflow/nicira-ext.h" |
39 | #include "openflow/openflow.h" | |
064af421 BP |
40 | #include "packets.h" |
41 | #include "pinsched.h" | |
42 | #include "pktbuf.h" | |
43 | #include "poll-loop.h" | |
064af421 | 44 | #include "shash.h" |
b3c01ed3 | 45 | #include "sset.h" |
064af421 | 46 | #include "timeval.h" |
c4617b3c | 47 | #include "unaligned.h" |
4f2cad2c | 48 | #include "unixctl.h" |
5136ce49 | 49 | #include "vlog.h" |
064af421 | 50 | |
d98e6007 | 51 | VLOG_DEFINE_THIS_MODULE(ofproto); |
064af421 | 52 | |
d76f09ea | 53 | COVERAGE_DEFINE(ofproto_error); |
d76f09ea | 54 | COVERAGE_DEFINE(ofproto_flush); |
d76f09ea | 55 | COVERAGE_DEFINE(ofproto_no_packet_in); |
d76f09ea BP |
56 | COVERAGE_DEFINE(ofproto_packet_out); |
57 | COVERAGE_DEFINE(ofproto_queue_req); | |
58 | COVERAGE_DEFINE(ofproto_recv_openflow); | |
59 | COVERAGE_DEFINE(ofproto_reinit_ports); | |
d76f09ea BP |
60 | COVERAGE_DEFINE(ofproto_uninstallable); |
61 | COVERAGE_DEFINE(ofproto_update_port); | |
62 | ||
7ee20df1 BP |
63 | enum ofproto_state { |
64 | S_OPENFLOW, /* Processing OpenFlow commands. */ | |
65 | S_FLUSH, /* Deleting all flow table rules. */ | |
66 | }; | |
67 | ||
68 | enum ofoperation_type { | |
69 | OFOPERATION_ADD, | |
70 | OFOPERATION_DELETE, | |
71 | OFOPERATION_MODIFY | |
72 | }; | |
73 | ||
74 | /* A single OpenFlow request can execute any number of operations. The | |
75 | * ofopgroup maintain OpenFlow state common to all of the operations, e.g. the | |
76 | * ofconn to which an error reply should be sent if necessary. | |
77 | * | |
78 | * ofproto initiates some operations internally. These operations are still | |
79 | * assigned to groups but will not have an associated ofconn. */ | |
80 | struct ofopgroup { | |
81 | struct ofproto *ofproto; /* Owning ofproto. */ | |
82 | struct list ofproto_node; /* In ofproto's "pending" list. */ | |
83 | struct list ops; /* List of "struct ofoperation"s. */ | |
84 | ||
85 | /* Data needed to send OpenFlow reply on failure or to send a buffered | |
86 | * packet on success. | |
87 | * | |
88 | * If list_is_empty(ofconn_node) then this ofopgroup never had an | |
89 | * associated ofconn or its ofconn's connection dropped after it initiated | |
90 | * the operation. In the latter case 'ofconn' is a wild pointer that | |
91 | * refers to freed memory, so the 'ofconn' member must be used only if | |
92 | * !list_is_empty(ofconn_node). | |
93 | */ | |
94 | struct list ofconn_node; /* In ofconn's list of pending opgroups. */ | |
95 | struct ofconn *ofconn; /* ofconn for reply (but see note above). */ | |
96 | struct ofp_header *request; /* Original request (truncated at 64 bytes). */ | |
97 | uint32_t buffer_id; /* Buffer id from original request. */ | |
98 | int error; /* 0 if no error yet, otherwise error code. */ | |
99 | }; | |
100 | ||
7024dffe BP |
101 | static struct ofopgroup *ofopgroup_create_unattached(struct ofproto *); |
102 | static struct ofopgroup *ofopgroup_create(struct ofproto *, struct ofconn *, | |
103 | const struct ofp_header *, | |
104 | uint32_t buffer_id); | |
7ee20df1 BP |
105 | static void ofopgroup_submit(struct ofopgroup *); |
106 | static void ofopgroup_destroy(struct ofopgroup *); | |
107 | ||
108 | /* A single flow table operation. */ | |
109 | struct ofoperation { | |
110 | struct ofopgroup *group; /* Owning group. */ | |
111 | struct list group_node; /* In ofopgroup's "ops" list. */ | |
112 | struct hmap_node hmap_node; /* In ofproto's "deletions" hmap. */ | |
113 | struct rule *rule; /* Rule being operated upon. */ | |
114 | enum ofoperation_type type; /* Type of operation. */ | |
115 | int status; /* -1 if pending, otherwise 0 or error code. */ | |
116 | struct rule *victim; /* OFOPERATION_ADDING: Replaced rule. */ | |
117 | union ofp_action *actions; /* OFOPERATION_MODIFYING: Replaced actions. */ | |
118 | int n_actions; /* OFOPERATION_MODIFYING: # of old actions. */ | |
119 | ovs_be64 flow_cookie; /* Rule's old flow cookie. */ | |
120 | }; | |
121 | ||
122 | static void ofoperation_create(struct ofopgroup *, struct rule *, | |
123 | enum ofoperation_type); | |
124 | static void ofoperation_destroy(struct ofoperation *); | |
125 | ||
abe529af BP |
126 | static void ofport_destroy__(struct ofport *); |
127 | static void ofport_destroy(struct ofport *); | |
878ae780 | 128 | |
abe529af BP |
129 | static uint64_t pick_datapath_id(const struct ofproto *); |
130 | static uint64_t pick_fallback_dpid(void); | |
064af421 | 131 | |
abe529af | 132 | static void ofproto_destroy__(struct ofproto *); |
064af421 | 133 | |
abe529af BP |
134 | static void ofproto_rule_destroy__(struct rule *); |
135 | static void ofproto_rule_send_removed(struct rule *, uint8_t reason); | |
f29152ca | 136 | |
7ee20df1 BP |
137 | static void ofopgroup_destroy(struct ofopgroup *); |
138 | ||
a9a2da38 | 139 | static int add_flow(struct ofproto *, struct ofconn *, |
1b9d6420 BP |
140 | const struct ofputil_flow_mod *, |
141 | const struct ofp_header *); | |
7ee20df1 | 142 | |
7ee20df1 | 143 | static bool handle_openflow(struct ofconn *, struct ofpbuf *); |
75a75043 BP |
144 | static int handle_flow_mod__(struct ofproto *, struct ofconn *, |
145 | const struct ofputil_flow_mod *, | |
146 | const struct ofp_header *); | |
f29152ca | 147 | |
abe529af BP |
148 | static void update_port(struct ofproto *, const char *devname); |
149 | static int init_ports(struct ofproto *); | |
150 | static void reinit_ports(struct ofproto *); | |
9197df76 | 151 | static void set_internal_devs_mtu(struct ofproto *); |
f29152ca | 152 | |
abe529af | 153 | static void ofproto_unixctl_init(void); |
f29152ca | 154 | |
abe529af BP |
155 | /* All registered ofproto classes, in probe order. */ |
156 | static const struct ofproto_class **ofproto_classes; | |
157 | static size_t n_ofproto_classes; | |
158 | static size_t allocated_ofproto_classes; | |
7aa697dd | 159 | |
f797957a | 160 | /* Map from datapath name to struct ofproto, for use by unixctl commands. */ |
abe529af | 161 | static struct hmap all_ofprotos = HMAP_INITIALIZER(&all_ofprotos); |
ebe482fd | 162 | |
abe529af | 163 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); |
f29152ca | 164 | |
abe529af BP |
165 | static void |
166 | ofproto_initialize(void) | |
167 | { | |
168 | static bool inited; | |
f29152ca | 169 | |
abe529af BP |
170 | if (!inited) { |
171 | inited = true; | |
172 | ofproto_class_register(&ofproto_dpif_class); | |
173 | } | |
174 | } | |
f29152ca | 175 | |
abe529af BP |
176 | /* 'type' should be a normalized datapath type, as returned by |
177 | * ofproto_normalize_type(). Returns the corresponding ofproto_class | |
178 | * structure, or a null pointer if there is none registered for 'type'. */ | |
179 | static const struct ofproto_class * | |
180 | ofproto_class_find__(const char *type) | |
181 | { | |
182 | size_t i; | |
f29152ca | 183 | |
abe529af BP |
184 | ofproto_initialize(); |
185 | for (i = 0; i < n_ofproto_classes; i++) { | |
186 | const struct ofproto_class *class = ofproto_classes[i]; | |
187 | struct sset types; | |
188 | bool found; | |
064af421 | 189 | |
abe529af BP |
190 | sset_init(&types); |
191 | class->enumerate_types(&types); | |
192 | found = sset_contains(&types, type); | |
193 | sset_destroy(&types); | |
bcf84111 | 194 | |
abe529af BP |
195 | if (found) { |
196 | return class; | |
197 | } | |
198 | } | |
199 | VLOG_WARN("unknown datapath type %s", type); | |
200 | return NULL; | |
201 | } | |
064af421 | 202 | |
abe529af BP |
203 | /* Registers a new ofproto class. After successful registration, new ofprotos |
204 | * of that type can be created using ofproto_create(). */ | |
205 | int | |
206 | ofproto_class_register(const struct ofproto_class *new_class) | |
207 | { | |
208 | size_t i; | |
7aa697dd | 209 | |
abe529af BP |
210 | for (i = 0; i < n_ofproto_classes; i++) { |
211 | if (ofproto_classes[i] == new_class) { | |
212 | return EEXIST; | |
213 | } | |
214 | } | |
064af421 | 215 | |
abe529af BP |
216 | if (n_ofproto_classes >= allocated_ofproto_classes) { |
217 | ofproto_classes = x2nrealloc(ofproto_classes, | |
218 | &allocated_ofproto_classes, | |
219 | sizeof *ofproto_classes); | |
220 | } | |
221 | ofproto_classes[n_ofproto_classes++] = new_class; | |
222 | return 0; | |
223 | } | |
064af421 | 224 | |
abe529af BP |
225 | /* Unregisters a datapath provider. 'type' must have been previously |
226 | * registered and not currently be in use by any ofprotos. After | |
227 | * unregistration new datapaths of that type cannot be opened using | |
228 | * ofproto_create(). */ | |
229 | int | |
230 | ofproto_class_unregister(const struct ofproto_class *class) | |
231 | { | |
232 | size_t i; | |
76ce9432 | 233 | |
abe529af BP |
234 | for (i = 0; i < n_ofproto_classes; i++) { |
235 | if (ofproto_classes[i] == class) { | |
236 | for (i++; i < n_ofproto_classes; i++) { | |
237 | ofproto_classes[i - 1] = ofproto_classes[i]; | |
238 | } | |
239 | n_ofproto_classes--; | |
240 | return 0; | |
241 | } | |
242 | } | |
243 | VLOG_WARN("attempted to unregister an ofproto class that is not " | |
244 | "registered"); | |
245 | return EAFNOSUPPORT; | |
246 | } | |
4a4cdb3b | 247 | |
f79e673f BP |
248 | /* Clears 'types' and enumerates all registered ofproto types into it. The |
249 | * caller must first initialize the sset. */ | |
250 | void | |
251 | ofproto_enumerate_types(struct sset *types) | |
252 | { | |
abe529af | 253 | size_t i; |
064af421 | 254 | |
abe529af BP |
255 | ofproto_initialize(); |
256 | for (i = 0; i < n_ofproto_classes; i++) { | |
257 | ofproto_classes[i]->enumerate_types(types); | |
258 | } | |
f79e673f | 259 | } |
064af421 | 260 | |
f79e673f BP |
261 | /* Returns the fully spelled out name for the given ofproto 'type'. |
262 | * | |
263 | * Normalized type string can be compared with strcmp(). Unnormalized type | |
264 | * string might be the same even if they have different spellings. */ | |
265 | const char * | |
266 | ofproto_normalize_type(const char *type) | |
267 | { | |
abe529af | 268 | return type && type[0] ? type : "system"; |
f79e673f | 269 | } |
064af421 | 270 | |
f79e673f BP |
271 | /* Clears 'names' and enumerates the names of all known created ofprotos with |
272 | * the given 'type'. The caller must first initialize the sset. Returns 0 if | |
273 | * successful, otherwise a positive errno value. | |
274 | * | |
275 | * Some kinds of datapaths might not be practically enumerable. This is not | |
276 | * considered an error. */ | |
277 | int | |
278 | ofproto_enumerate_names(const char *type, struct sset *names) | |
279 | { | |
abe529af BP |
280 | const struct ofproto_class *class = ofproto_class_find__(type); |
281 | return class ? class->enumerate_names(type, names) : EAFNOSUPPORT; | |
282 | } | |
7aa697dd | 283 | |
064af421 | 284 | int |
abe529af | 285 | ofproto_create(const char *datapath_name, const char *datapath_type, |
064af421 BP |
286 | struct ofproto **ofprotop) |
287 | { | |
abe529af | 288 | const struct ofproto_class *class; |
b772ded8 | 289 | struct classifier *table; |
abe529af | 290 | struct ofproto *ofproto; |
073e2a6f | 291 | int n_tables; |
064af421 BP |
292 | int error; |
293 | ||
294 | *ofprotop = NULL; | |
295 | ||
abe529af | 296 | ofproto_initialize(); |
7aa697dd BP |
297 | ofproto_unixctl_init(); |
298 | ||
abe529af BP |
299 | datapath_type = ofproto_normalize_type(datapath_type); |
300 | class = ofproto_class_find__(datapath_type); | |
301 | if (!class) { | |
302 | VLOG_WARN("could not create datapath %s of unknown type %s", | |
303 | datapath_name, datapath_type); | |
304 | return EAFNOSUPPORT; | |
064af421 BP |
305 | } |
306 | ||
abe529af BP |
307 | ofproto = class->alloc(); |
308 | if (!ofproto) { | |
309 | VLOG_ERR("failed to allocate datapath %s of type %s", | |
310 | datapath_name, datapath_type); | |
311 | return ENOMEM; | |
312 | } | |
313 | ||
314 | /* Initialize. */ | |
315 | memset(ofproto, 0, sizeof *ofproto); | |
316 | ofproto->ofproto_class = class; | |
317 | ofproto->name = xstrdup(datapath_name); | |
318 | ofproto->type = xstrdup(datapath_type); | |
319 | hmap_insert(&all_ofprotos, &ofproto->hmap_node, | |
320 | hash_string(ofproto->name, 0)); | |
321 | ofproto->datapath_id = 0; | |
084f5290 SH |
322 | ofproto_set_flow_eviction_threshold(ofproto, |
323 | OFPROTO_FLOW_EVICTON_THRESHOLD_DEFAULT); | |
8402c74b | 324 | ofproto->forward_bpdu = false; |
abe529af BP |
325 | ofproto->fallback_dpid = pick_fallback_dpid(); |
326 | ofproto->mfr_desc = xstrdup(DEFAULT_MFR_DESC); | |
327 | ofproto->hw_desc = xstrdup(DEFAULT_HW_DESC); | |
328 | ofproto->sw_desc = xstrdup(DEFAULT_SW_DESC); | |
329 | ofproto->serial_desc = xstrdup(DEFAULT_SERIAL_DESC); | |
330 | ofproto->dp_desc = xstrdup(DEFAULT_DP_DESC); | |
7257b535 | 331 | ofproto->frag_handling = OFPC_FRAG_NORMAL; |
abe529af BP |
332 | hmap_init(&ofproto->ports); |
333 | shash_init(&ofproto->port_by_name); | |
6c1491fb BP |
334 | ofproto->tables = NULL; |
335 | ofproto->n_tables = 0; | |
abe529af | 336 | ofproto->connmgr = connmgr_create(ofproto, datapath_name, datapath_name); |
7ee20df1 BP |
337 | ofproto->state = S_OPENFLOW; |
338 | list_init(&ofproto->pending); | |
dd5616b3 | 339 | ofproto->n_pending = 0; |
7ee20df1 | 340 | hmap_init(&ofproto->deletions); |
52a90c29 BP |
341 | ofproto->vlan_bitmap = NULL; |
342 | ofproto->vlans_changed = false; | |
abe529af | 343 | |
073e2a6f | 344 | error = ofproto->ofproto_class->construct(ofproto, &n_tables); |
19a87e36 | 345 | if (error) { |
abe529af BP |
346 | VLOG_ERR("failed to open datapath %s: %s", |
347 | datapath_name, strerror(error)); | |
348 | ofproto_destroy__(ofproto); | |
19a87e36 BP |
349 | return error; |
350 | } | |
073e2a6f BP |
351 | |
352 | assert(n_tables >= 1 && n_tables <= 255); | |
353 | ofproto->n_tables = n_tables; | |
354 | ofproto->tables = xmalloc(n_tables * sizeof *ofproto->tables); | |
b772ded8 BP |
355 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
356 | classifier_init(table); | |
073e2a6f | 357 | } |
19a87e36 | 358 | |
abe529af BP |
359 | ofproto->datapath_id = pick_datapath_id(ofproto); |
360 | VLOG_INFO("using datapath ID %016"PRIx64, ofproto->datapath_id); | |
361 | init_ports(ofproto); | |
7aa697dd | 362 | |
abe529af | 363 | *ofprotop = ofproto; |
064af421 BP |
364 | return 0; |
365 | } | |
366 | ||
367 | void | |
368 | ofproto_set_datapath_id(struct ofproto *p, uint64_t datapath_id) | |
369 | { | |
370 | uint64_t old_dpid = p->datapath_id; | |
fa60c019 | 371 | p->datapath_id = datapath_id ? datapath_id : pick_datapath_id(p); |
064af421 | 372 | if (p->datapath_id != old_dpid) { |
b123cc3c | 373 | VLOG_INFO("datapath ID changed to %016"PRIx64, p->datapath_id); |
76ce9432 BP |
374 | |
375 | /* Force all active connections to reconnect, since there is no way to | |
376 | * notify a controller that the datapath ID has changed. */ | |
fa05809b | 377 | ofproto_reconnect_controllers(p); |
064af421 BP |
378 | } |
379 | } | |
380 | ||
76ce9432 BP |
381 | void |
382 | ofproto_set_controllers(struct ofproto *p, | |
383 | const struct ofproto_controller *controllers, | |
384 | size_t n_controllers) | |
385 | { | |
19a87e36 | 386 | connmgr_set_controllers(p->connmgr, controllers, n_controllers); |
064af421 BP |
387 | } |
388 | ||
31681a5d JP |
389 | void |
390 | ofproto_set_fail_mode(struct ofproto *p, enum ofproto_fail_mode fail_mode) | |
391 | { | |
19a87e36 | 392 | connmgr_set_fail_mode(p->connmgr, fail_mode); |
31681a5d JP |
393 | } |
394 | ||
fa05809b BP |
395 | /* Drops the connections between 'ofproto' and all of its controllers, forcing |
396 | * them to reconnect. */ | |
397 | void | |
398 | ofproto_reconnect_controllers(struct ofproto *ofproto) | |
399 | { | |
19a87e36 | 400 | connmgr_reconnect(ofproto->connmgr); |
917e50e1 BP |
401 | } |
402 | ||
403 | /* Sets the 'n' TCP port addresses in 'extras' as ones to which 'ofproto''s | |
404 | * in-band control should guarantee access, in the same way that in-band | |
405 | * control guarantees access to OpenFlow controllers. */ | |
406 | void | |
407 | ofproto_set_extra_in_band_remotes(struct ofproto *ofproto, | |
408 | const struct sockaddr_in *extras, size_t n) | |
409 | { | |
19a87e36 | 410 | connmgr_set_extra_in_band_remotes(ofproto->connmgr, extras, n); |
917e50e1 BP |
411 | } |
412 | ||
b1da6250 BP |
413 | /* Sets the OpenFlow queue used by flows set up by in-band control on |
414 | * 'ofproto' to 'queue_id'. If 'queue_id' is negative, then in-band control | |
415 | * flows will use the default queue. */ | |
416 | void | |
417 | ofproto_set_in_band_queue(struct ofproto *ofproto, int queue_id) | |
418 | { | |
19a87e36 | 419 | connmgr_set_in_band_queue(ofproto->connmgr, queue_id); |
b1da6250 BP |
420 | } |
421 | ||
084f5290 SH |
422 | /* Sets the number of flows at which eviction from the kernel flow table |
423 | * will occur. */ | |
424 | void | |
425 | ofproto_set_flow_eviction_threshold(struct ofproto *ofproto, unsigned threshold) | |
426 | { | |
427 | if (threshold < OFPROTO_FLOW_EVICTION_THRESHOLD_MIN) { | |
428 | ofproto->flow_eviction_threshold = OFPROTO_FLOW_EVICTION_THRESHOLD_MIN; | |
429 | } else { | |
430 | ofproto->flow_eviction_threshold = threshold; | |
431 | } | |
432 | } | |
433 | ||
b53055f4 | 434 | /* If forward_bpdu is true, the NORMAL action will forward frames with |
8402c74b SS |
435 | * reserved (e.g. STP) destination Ethernet addresses. if forward_bpdu is false, |
436 | * the NORMAL action will drop these frames. */ | |
437 | void | |
438 | ofproto_set_forward_bpdu(struct ofproto *ofproto, bool forward_bpdu) | |
439 | { | |
440 | bool old_val = ofproto->forward_bpdu; | |
441 | ofproto->forward_bpdu = forward_bpdu; | |
442 | if (old_val != ofproto->forward_bpdu) { | |
443 | if (ofproto->ofproto_class->forward_bpdu_changed) { | |
444 | ofproto->ofproto_class->forward_bpdu_changed(ofproto); | |
445 | } | |
b53055f4 | 446 | } |
8402c74b SS |
447 | } |
448 | ||
064af421 BP |
449 | void |
450 | ofproto_set_desc(struct ofproto *p, | |
5a719c38 JP |
451 | const char *mfr_desc, const char *hw_desc, |
452 | const char *sw_desc, const char *serial_desc, | |
8abc4ed7 | 453 | const char *dp_desc) |
064af421 | 454 | { |
5a719c38 JP |
455 | struct ofp_desc_stats *ods; |
456 | ||
457 | if (mfr_desc) { | |
458 | if (strlen(mfr_desc) >= sizeof ods->mfr_desc) { | |
459 | VLOG_WARN("truncating mfr_desc, must be less than %zu characters", | |
460 | sizeof ods->mfr_desc); | |
461 | } | |
462 | free(p->mfr_desc); | |
463 | p->mfr_desc = xstrdup(mfr_desc); | |
064af421 | 464 | } |
5a719c38 JP |
465 | if (hw_desc) { |
466 | if (strlen(hw_desc) >= sizeof ods->hw_desc) { | |
467 | VLOG_WARN("truncating hw_desc, must be less than %zu characters", | |
468 | sizeof ods->hw_desc); | |
469 | } | |
470 | free(p->hw_desc); | |
471 | p->hw_desc = xstrdup(hw_desc); | |
064af421 | 472 | } |
5a719c38 JP |
473 | if (sw_desc) { |
474 | if (strlen(sw_desc) >= sizeof ods->sw_desc) { | |
475 | VLOG_WARN("truncating sw_desc, must be less than %zu characters", | |
476 | sizeof ods->sw_desc); | |
477 | } | |
478 | free(p->sw_desc); | |
479 | p->sw_desc = xstrdup(sw_desc); | |
480 | } | |
481 | if (serial_desc) { | |
482 | if (strlen(serial_desc) >= sizeof ods->serial_num) { | |
483 | VLOG_WARN("truncating serial_desc, must be less than %zu " | |
484 | "characters", | |
485 | sizeof ods->serial_num); | |
486 | } | |
487 | free(p->serial_desc); | |
488 | p->serial_desc = xstrdup(serial_desc); | |
064af421 | 489 | } |
8abc4ed7 | 490 | if (dp_desc) { |
5a719c38 JP |
491 | if (strlen(dp_desc) >= sizeof ods->dp_desc) { |
492 | VLOG_WARN("truncating dp_desc, must be less than %zu characters", | |
493 | sizeof ods->dp_desc); | |
494 | } | |
8abc4ed7 JP |
495 | free(p->dp_desc); |
496 | p->dp_desc = xstrdup(dp_desc); | |
497 | } | |
064af421 BP |
498 | } |
499 | ||
064af421 | 500 | int |
81e2083f | 501 | ofproto_set_snoops(struct ofproto *ofproto, const struct sset *snoops) |
064af421 | 502 | { |
19a87e36 | 503 | return connmgr_set_snoops(ofproto->connmgr, snoops); |
064af421 BP |
504 | } |
505 | ||
506 | int | |
0193b2af JG |
507 | ofproto_set_netflow(struct ofproto *ofproto, |
508 | const struct netflow_options *nf_options) | |
064af421 | 509 | { |
abe529af BP |
510 | if (nf_options && sset_is_empty(&nf_options->collectors)) { |
511 | nf_options = NULL; | |
512 | } | |
513 | ||
514 | if (ofproto->ofproto_class->set_netflow) { | |
515 | return ofproto->ofproto_class->set_netflow(ofproto, nf_options); | |
064af421 | 516 | } else { |
abe529af | 517 | return nf_options ? EOPNOTSUPP : 0; |
064af421 BP |
518 | } |
519 | } | |
520 | ||
abe529af | 521 | int |
72b06300 BP |
522 | ofproto_set_sflow(struct ofproto *ofproto, |
523 | const struct ofproto_sflow_options *oso) | |
524 | { | |
abe529af BP |
525 | if (oso && sset_is_empty(&oso->targets)) { |
526 | oso = NULL; | |
527 | } | |
72b06300 | 528 | |
abe529af BP |
529 | if (ofproto->ofproto_class->set_sflow) { |
530 | return ofproto->ofproto_class->set_sflow(ofproto, oso); | |
72b06300 | 531 | } else { |
abe529af | 532 | return oso ? EOPNOTSUPP : 0; |
72b06300 BP |
533 | } |
534 | } | |
e7934396 | 535 | \f |
21f7563c JP |
536 | /* Spanning Tree Protocol (STP) configuration. */ |
537 | ||
538 | /* Configures STP on 'ofproto' using the settings defined in 's'. If | |
539 | * 's' is NULL, disables STP. | |
540 | * | |
541 | * Returns 0 if successful, otherwise a positive errno value. */ | |
542 | int | |
543 | ofproto_set_stp(struct ofproto *ofproto, | |
544 | const struct ofproto_stp_settings *s) | |
545 | { | |
546 | return (ofproto->ofproto_class->set_stp | |
547 | ? ofproto->ofproto_class->set_stp(ofproto, s) | |
548 | : EOPNOTSUPP); | |
549 | } | |
550 | ||
551 | /* Retrieves STP status of 'ofproto' and stores it in 's'. If the | |
552 | * 'enabled' member of 's' is false, then the other members are not | |
553 | * meaningful. | |
554 | * | |
555 | * Returns 0 if successful, otherwise a positive errno value. */ | |
556 | int | |
557 | ofproto_get_stp_status(struct ofproto *ofproto, | |
558 | struct ofproto_stp_status *s) | |
559 | { | |
560 | return (ofproto->ofproto_class->get_stp_status | |
561 | ? ofproto->ofproto_class->get_stp_status(ofproto, s) | |
562 | : EOPNOTSUPP); | |
563 | } | |
564 | ||
565 | /* Configures STP on 'ofp_port' of 'ofproto' using the settings defined | |
566 | * in 's'. The caller is responsible for assigning STP port numbers | |
567 | * (using the 'port_num' member in the range of 1 through 255, inclusive) | |
568 | * and ensuring there are no duplicates. If the 's' is NULL, then STP | |
569 | * is disabled on the port. | |
570 | * | |
571 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
572 | int | |
573 | ofproto_port_set_stp(struct ofproto *ofproto, uint16_t ofp_port, | |
574 | const struct ofproto_port_stp_settings *s) | |
575 | { | |
576 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
577 | if (!ofport) { | |
578 | VLOG_WARN("%s: cannot configure STP on nonexistent port %"PRIu16, | |
579 | ofproto->name, ofp_port); | |
580 | return ENODEV; | |
581 | } | |
582 | ||
583 | return (ofproto->ofproto_class->set_stp_port | |
584 | ? ofproto->ofproto_class->set_stp_port(ofport, s) | |
585 | : EOPNOTSUPP); | |
586 | } | |
587 | ||
588 | /* Retrieves STP port status of 'ofp_port' on 'ofproto' and stores it in | |
589 | * 's'. If the 'enabled' member in 's' is false, then the other members | |
590 | * are not meaningful. | |
591 | * | |
592 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
593 | int | |
594 | ofproto_port_get_stp_status(struct ofproto *ofproto, uint16_t ofp_port, | |
595 | struct ofproto_port_stp_status *s) | |
596 | { | |
597 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
598 | if (!ofport) { | |
599 | VLOG_WARN("%s: cannot get STP status on nonexistent port %"PRIu16, | |
600 | ofproto->name, ofp_port); | |
601 | return ENODEV; | |
602 | } | |
603 | ||
604 | return (ofproto->ofproto_class->get_stp_port_status | |
605 | ? ofproto->ofproto_class->get_stp_port_status(ofport, s) | |
606 | : EOPNOTSUPP); | |
607 | } | |
608 | \f | |
8b36f51e EJ |
609 | /* Queue DSCP configuration. */ |
610 | ||
611 | /* Registers meta-data associated with the 'n_qdscp' Qualities of Service | |
612 | * 'queues' attached to 'ofport'. This data is not intended to be sufficient | |
613 | * to implement QoS. Instead, it is used to implement features which require | |
614 | * knowledge of what queues exist on a port, and some basic information about | |
615 | * them. | |
616 | * | |
617 | * Returns 0 if successful, otherwise a positive errno value. */ | |
618 | int | |
619 | ofproto_port_set_queues(struct ofproto *ofproto, uint16_t ofp_port, | |
620 | const struct ofproto_port_queue *queues, | |
621 | size_t n_queues) | |
622 | { | |
623 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
624 | ||
625 | if (!ofport) { | |
626 | VLOG_WARN("%s: cannot set queues on nonexistent port %"PRIu16, | |
627 | ofproto->name, ofp_port); | |
628 | return ENODEV; | |
629 | } | |
630 | ||
631 | return (ofproto->ofproto_class->set_queues | |
632 | ? ofproto->ofproto_class->set_queues(ofport, queues, n_queues) | |
633 | : EOPNOTSUPP); | |
634 | } | |
635 | \f | |
e7934396 BP |
636 | /* Connectivity Fault Management configuration. */ |
637 | ||
892815f5 | 638 | /* Clears the CFM configuration from 'ofp_port' on 'ofproto'. */ |
e7934396 | 639 | void |
892815f5 | 640 | ofproto_port_clear_cfm(struct ofproto *ofproto, uint16_t ofp_port) |
e7934396 | 641 | { |
abe529af BP |
642 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
643 | if (ofport && ofproto->ofproto_class->set_cfm) { | |
a5610457 | 644 | ofproto->ofproto_class->set_cfm(ofport, NULL); |
e7934396 BP |
645 | } |
646 | } | |
72b06300 | 647 | |
892815f5 | 648 | /* Configures connectivity fault management on 'ofp_port' in 'ofproto'. Takes |
93b8df38 EJ |
649 | * basic configuration from the configuration members in 'cfm', and the remote |
650 | * maintenance point ID from remote_mpid. Ignores the statistics members of | |
651 | * 'cfm'. | |
e7934396 | 652 | * |
892815f5 | 653 | * This function has no effect if 'ofproto' does not have a port 'ofp_port'. */ |
e7934396 | 654 | void |
892815f5 | 655 | ofproto_port_set_cfm(struct ofproto *ofproto, uint16_t ofp_port, |
a5610457 | 656 | const struct cfm_settings *s) |
e7934396 BP |
657 | { |
658 | struct ofport *ofport; | |
abe529af | 659 | int error; |
e7934396 | 660 | |
abe529af | 661 | ofport = ofproto_get_port(ofproto, ofp_port); |
e7934396 | 662 | if (!ofport) { |
892815f5 BP |
663 | VLOG_WARN("%s: cannot configure CFM on nonexistent port %"PRIu16, |
664 | ofproto->name, ofp_port); | |
e7934396 BP |
665 | return; |
666 | } | |
667 | ||
93b8df38 EJ |
668 | /* XXX: For configuration simplicity, we only support one remote_mpid |
669 | * outside of the CFM module. It's not clear if this is the correct long | |
670 | * term solution or not. */ | |
abe529af | 671 | error = (ofproto->ofproto_class->set_cfm |
a5610457 | 672 | ? ofproto->ofproto_class->set_cfm(ofport, s) |
abe529af BP |
673 | : EOPNOTSUPP); |
674 | if (error) { | |
675 | VLOG_WARN("%s: CFM configuration on port %"PRIu16" (%s) failed (%s)", | |
676 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), | |
677 | strerror(error)); | |
e7934396 | 678 | } |
e7934396 | 679 | } |
e7934396 | 680 | |
fa066f01 BP |
681 | /* Checks the status of LACP negotiation for 'ofp_port' within ofproto. |
682 | * Returns 1 if LACP partner information for 'ofp_port' is up-to-date, | |
683 | * 0 if LACP partner information is not current (generally indicating a | |
684 | * connectivity problem), or -1 if LACP is not enabled on 'ofp_port'. */ | |
685 | int | |
686 | ofproto_port_is_lacp_current(struct ofproto *ofproto, uint16_t ofp_port) | |
687 | { | |
abe529af BP |
688 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
689 | return (ofport && ofproto->ofproto_class->port_is_lacp_current | |
690 | ? ofproto->ofproto_class->port_is_lacp_current(ofport) | |
fa066f01 | 691 | : -1); |
e7934396 | 692 | } |
e7934396 | 693 | \f |
fa066f01 | 694 | /* Bundles. */ |
e7934396 | 695 | |
abe529af BP |
696 | /* Registers a "bundle" associated with client data pointer 'aux' in 'ofproto'. |
697 | * A bundle is the same concept as a Port in OVSDB, that is, it consists of one | |
698 | * or more "slave" devices (Interfaces, in OVSDB) along with a VLAN | |
699 | * configuration plus, if there is more than one slave, a bonding | |
700 | * configuration. | |
701 | * | |
702 | * If 'aux' is already registered then this function updates its configuration | |
703 | * to 's'. Otherwise, this function registers a new bundle. | |
704 | * | |
705 | * Bundles only affect the NXAST_AUTOPATH action and output to the OFPP_NORMAL | |
706 | * port. */ | |
707 | int | |
708 | ofproto_bundle_register(struct ofproto *ofproto, void *aux, | |
709 | const struct ofproto_bundle_settings *s) | |
fa066f01 | 710 | { |
abe529af BP |
711 | return (ofproto->ofproto_class->bundle_set |
712 | ? ofproto->ofproto_class->bundle_set(ofproto, aux, s) | |
713 | : EOPNOTSUPP); | |
fa066f01 BP |
714 | } |
715 | ||
abe529af BP |
716 | /* Unregisters the bundle registered on 'ofproto' with auxiliary data 'aux'. |
717 | * If no such bundle has been registered, this has no effect. */ | |
718 | int | |
719 | ofproto_bundle_unregister(struct ofproto *ofproto, void *aux) | |
e7934396 | 720 | { |
abe529af | 721 | return ofproto_bundle_register(ofproto, aux, NULL); |
e7934396 | 722 | } |
fa066f01 | 723 | |
e7934396 | 724 | \f |
abe529af BP |
725 | /* Registers a mirror associated with client data pointer 'aux' in 'ofproto'. |
726 | * If 'aux' is already registered then this function updates its configuration | |
c06bba01 | 727 | * to 's'. Otherwise, this function registers a new mirror. */ |
abe529af BP |
728 | int |
729 | ofproto_mirror_register(struct ofproto *ofproto, void *aux, | |
730 | const struct ofproto_mirror_settings *s) | |
064af421 | 731 | { |
abe529af BP |
732 | return (ofproto->ofproto_class->mirror_set |
733 | ? ofproto->ofproto_class->mirror_set(ofproto, aux, s) | |
734 | : EOPNOTSUPP); | |
064af421 BP |
735 | } |
736 | ||
abe529af BP |
737 | /* Unregisters the mirror registered on 'ofproto' with auxiliary data 'aux'. |
738 | * If no mirror has been registered, this has no effect. */ | |
739 | int | |
740 | ofproto_mirror_unregister(struct ofproto *ofproto, void *aux) | |
064af421 | 741 | { |
abe529af | 742 | return ofproto_mirror_register(ofproto, aux, NULL); |
064af421 BP |
743 | } |
744 | ||
9d24de3b JP |
745 | /* Retrieves statistics from mirror associated with client data pointer |
746 | * 'aux' in 'ofproto'. Stores packet and byte counts in 'packets' and | |
747 | * 'bytes', respectively. If a particular counters is not supported, | |
748 | * the appropriate argument is set to UINT64_MAX. */ | |
749 | int | |
750 | ofproto_mirror_get_stats(struct ofproto *ofproto, void *aux, | |
751 | uint64_t *packets, uint64_t *bytes) | |
752 | { | |
753 | if (!ofproto->ofproto_class->mirror_get_stats) { | |
754 | *packets = *bytes = UINT64_MAX; | |
755 | return EOPNOTSUPP; | |
756 | } | |
757 | ||
758 | return ofproto->ofproto_class->mirror_get_stats(ofproto, aux, | |
759 | packets, bytes); | |
760 | } | |
761 | ||
abe529af BP |
762 | /* Configures the VLANs whose bits are set to 1 in 'flood_vlans' as VLANs on |
763 | * which all packets are flooded, instead of using MAC learning. If | |
764 | * 'flood_vlans' is NULL, then MAC learning applies to all VLANs. | |
765 | * | |
766 | * Flood VLANs affect only the treatment of packets output to the OFPP_NORMAL | |
767 | * port. */ | |
768 | int | |
769 | ofproto_set_flood_vlans(struct ofproto *ofproto, unsigned long *flood_vlans) | |
abdfe474 | 770 | { |
abe529af BP |
771 | return (ofproto->ofproto_class->set_flood_vlans |
772 | ? ofproto->ofproto_class->set_flood_vlans(ofproto, flood_vlans) | |
773 | : EOPNOTSUPP); | |
abdfe474 JP |
774 | } |
775 | ||
abe529af BP |
776 | /* Returns true if 'aux' is a registered bundle that is currently in use as the |
777 | * output for a mirror. */ | |
778 | bool | |
b4affc74 | 779 | ofproto_is_mirror_output_bundle(const struct ofproto *ofproto, void *aux) |
abe529af BP |
780 | { |
781 | return (ofproto->ofproto_class->is_mirror_output_bundle | |
782 | ? ofproto->ofproto_class->is_mirror_output_bundle(ofproto, aux) | |
783 | : false); | |
784 | } | |
785 | \f | |
81e2083f BP |
786 | bool |
787 | ofproto_has_snoops(const struct ofproto *ofproto) | |
788 | { | |
789 | return connmgr_has_snoops(ofproto->connmgr); | |
790 | } | |
791 | ||
064af421 | 792 | void |
81e2083f | 793 | ofproto_get_snoops(const struct ofproto *ofproto, struct sset *snoops) |
064af421 | 794 | { |
19a87e36 | 795 | connmgr_get_snoops(ofproto->connmgr, snoops); |
064af421 BP |
796 | } |
797 | ||
7ee20df1 BP |
798 | static void |
799 | ofproto_flush__(struct ofproto *ofproto) | |
800 | { | |
801 | struct classifier *table; | |
802 | struct ofopgroup *group; | |
803 | ||
804 | if (ofproto->ofproto_class->flush) { | |
805 | ofproto->ofproto_class->flush(ofproto); | |
806 | } | |
807 | ||
7024dffe | 808 | group = ofopgroup_create_unattached(ofproto); |
b772ded8 | 809 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
7ee20df1 BP |
810 | struct rule *rule, *next_rule; |
811 | struct cls_cursor cursor; | |
812 | ||
813 | cls_cursor_init(&cursor, table, NULL); | |
814 | CLS_CURSOR_FOR_EACH_SAFE (rule, next_rule, cr, &cursor) { | |
815 | if (!rule->pending) { | |
816 | ofoperation_create(group, rule, OFOPERATION_DELETE); | |
817 | classifier_remove(table, &rule->cr); | |
818 | ofproto->ofproto_class->rule_destruct(rule); | |
819 | } | |
820 | } | |
821 | } | |
822 | ofopgroup_submit(group); | |
823 | } | |
824 | ||
abe529af BP |
825 | static void |
826 | ofproto_destroy__(struct ofproto *ofproto) | |
827 | { | |
b772ded8 | 828 | struct classifier *table; |
6c1491fb | 829 | |
7ee20df1 | 830 | assert(list_is_empty(&ofproto->pending)); |
dd5616b3 | 831 | assert(!ofproto->n_pending); |
7ee20df1 | 832 | |
abe529af | 833 | connmgr_destroy(ofproto->connmgr); |
fa066f01 | 834 | |
abe529af BP |
835 | hmap_remove(&all_ofprotos, &ofproto->hmap_node); |
836 | free(ofproto->name); | |
955a7127 | 837 | free(ofproto->type); |
abe529af BP |
838 | free(ofproto->mfr_desc); |
839 | free(ofproto->hw_desc); | |
840 | free(ofproto->sw_desc); | |
841 | free(ofproto->serial_desc); | |
842 | free(ofproto->dp_desc); | |
abe529af BP |
843 | hmap_destroy(&ofproto->ports); |
844 | shash_destroy(&ofproto->port_by_name); | |
6c1491fb | 845 | |
b772ded8 BP |
846 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
847 | assert(classifier_is_empty(table)); | |
848 | classifier_destroy(table); | |
6c1491fb BP |
849 | } |
850 | free(ofproto->tables); | |
fa066f01 | 851 | |
7ee20df1 BP |
852 | hmap_destroy(&ofproto->deletions); |
853 | ||
52a90c29 BP |
854 | free(ofproto->vlan_bitmap); |
855 | ||
abe529af BP |
856 | ofproto->ofproto_class->dealloc(ofproto); |
857 | } | |
fa066f01 | 858 | |
064af421 BP |
859 | void |
860 | ofproto_destroy(struct ofproto *p) | |
861 | { | |
ca0f572c | 862 | struct ofport *ofport, *next_ofport; |
064af421 BP |
863 | |
864 | if (!p) { | |
865 | return; | |
866 | } | |
867 | ||
7ee20df1 | 868 | ofproto_flush__(p); |
4e8e4213 | 869 | HMAP_FOR_EACH_SAFE (ofport, next_ofport, hmap_node, &p->ports) { |
abe529af | 870 | ofport_destroy(ofport); |
064af421 | 871 | } |
064af421 | 872 | |
abe529af BP |
873 | p->ofproto_class->destruct(p); |
874 | ofproto_destroy__(p); | |
064af421 BP |
875 | } |
876 | ||
abe529af BP |
877 | /* Destroys the datapath with the respective 'name' and 'type'. With the Linux |
878 | * kernel datapath, for example, this destroys the datapath in the kernel, and | |
879 | * with the netdev-based datapath, it tears down the data structures that | |
880 | * represent the datapath. | |
881 | * | |
882 | * The datapath should not be currently open as an ofproto. */ | |
064af421 | 883 | int |
abe529af | 884 | ofproto_delete(const char *name, const char *type) |
064af421 | 885 | { |
abe529af BP |
886 | const struct ofproto_class *class = ofproto_class_find__(type); |
887 | return (!class ? EAFNOSUPPORT | |
888 | : !class->del ? EACCES | |
889 | : class->del(type, name)); | |
064af421 BP |
890 | } |
891 | ||
e9e28be3 BP |
892 | static void |
893 | process_port_change(struct ofproto *ofproto, int error, char *devname) | |
894 | { | |
895 | if (error == ENOBUFS) { | |
896 | reinit_ports(ofproto); | |
897 | } else if (!error) { | |
898 | update_port(ofproto, devname); | |
899 | free(devname); | |
900 | } | |
901 | } | |
902 | ||
064af421 | 903 | int |
abe529af | 904 | ofproto_run(struct ofproto *p) |
064af421 | 905 | { |
031d8bff | 906 | struct ofport *ofport; |
064af421 BP |
907 | char *devname; |
908 | int error; | |
064af421 | 909 | |
abe529af BP |
910 | error = p->ofproto_class->run(p); |
911 | if (error == ENODEV) { | |
912 | /* Someone destroyed the datapath behind our back. The caller | |
913 | * better destroy us and give up, because we're just going to | |
914 | * spin from here on out. */ | |
915 | static struct vlog_rate_limit rl2 = VLOG_RATE_LIMIT_INIT(1, 5); | |
916 | VLOG_ERR_RL(&rl2, "%s: datapath was destroyed externally", | |
917 | p->name); | |
918 | return ENODEV; | |
149f577a JG |
919 | } |
920 | ||
5bf0e941 BP |
921 | if (p->ofproto_class->port_poll) { |
922 | while ((error = p->ofproto_class->port_poll(p, &devname)) != EAGAIN) { | |
923 | process_port_change(p, error, devname); | |
064af421 | 924 | } |
e9e28be3 | 925 | } |
031d8bff EJ |
926 | |
927 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
928 | unsigned int change_seq = netdev_change_seq(ofport->netdev); | |
929 | if (ofport->change_seq != change_seq) { | |
930 | ofport->change_seq = change_seq; | |
931 | update_port(p, netdev_get_name(ofport->netdev)); | |
932 | } | |
064af421 BP |
933 | } |
934 | ||
7ee20df1 BP |
935 | |
936 | switch (p->state) { | |
937 | case S_OPENFLOW: | |
938 | connmgr_run(p->connmgr, handle_openflow); | |
939 | break; | |
940 | ||
941 | case S_FLUSH: | |
942 | connmgr_run(p->connmgr, NULL); | |
943 | ofproto_flush__(p); | |
944 | if (list_is_empty(&p->pending) && hmap_is_empty(&p->deletions)) { | |
945 | connmgr_flushed(p->connmgr); | |
946 | p->state = S_OPENFLOW; | |
947 | } | |
948 | break; | |
949 | ||
950 | default: | |
951 | NOT_REACHED(); | |
952 | } | |
064af421 | 953 | |
064af421 BP |
954 | return 0; |
955 | } | |
956 | ||
957 | void | |
958 | ofproto_wait(struct ofproto *p) | |
959 | { | |
031d8bff EJ |
960 | struct ofport *ofport; |
961 | ||
abe529af | 962 | p->ofproto_class->wait(p); |
5bf0e941 BP |
963 | if (p->ofproto_class->port_poll_wait) { |
964 | p->ofproto_class->port_poll_wait(p); | |
e7934396 | 965 | } |
031d8bff EJ |
966 | |
967 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
968 | if (ofport->change_seq != netdev_change_seq(ofport->netdev)) { | |
969 | poll_immediate_wake(); | |
970 | } | |
971 | } | |
7ee20df1 BP |
972 | |
973 | switch (p->state) { | |
974 | case S_OPENFLOW: | |
975 | connmgr_wait(p->connmgr, true); | |
976 | break; | |
977 | ||
978 | case S_FLUSH: | |
979 | connmgr_wait(p->connmgr, false); | |
980 | if (list_is_empty(&p->pending) && hmap_is_empty(&p->deletions)) { | |
981 | poll_immediate_wake(); | |
982 | } | |
983 | break; | |
984 | } | |
064af421 BP |
985 | } |
986 | ||
064af421 BP |
987 | bool |
988 | ofproto_is_alive(const struct ofproto *p) | |
989 | { | |
19a87e36 | 990 | return connmgr_has_controllers(p->connmgr); |
064af421 BP |
991 | } |
992 | ||
bffc0589 | 993 | void |
2cdcb898 | 994 | ofproto_get_ofproto_controller_info(const struct ofproto *ofproto, |
bffc0589 AE |
995 | struct shash *info) |
996 | { | |
19a87e36 | 997 | connmgr_get_controller_info(ofproto->connmgr, info); |
bffc0589 AE |
998 | } |
999 | ||
1000 | void | |
1001 | ofproto_free_ofproto_controller_info(struct shash *info) | |
1002 | { | |
72ba2ed3 | 1003 | connmgr_free_controller_info(info); |
bffc0589 AE |
1004 | } |
1005 | ||
b5827b24 BP |
1006 | /* Makes a deep copy of 'old' into 'port'. */ |
1007 | void | |
1008 | ofproto_port_clone(struct ofproto_port *port, const struct ofproto_port *old) | |
1009 | { | |
1010 | port->name = xstrdup(old->name); | |
1011 | port->type = xstrdup(old->type); | |
1012 | port->ofp_port = old->ofp_port; | |
1013 | } | |
1014 | ||
1015 | /* Frees memory allocated to members of 'ofproto_port'. | |
3a6ccc8c | 1016 | * |
b5827b24 BP |
1017 | * Do not call this function on an ofproto_port obtained from |
1018 | * ofproto_port_dump_next(): that function retains ownership of the data in the | |
1019 | * ofproto_port. */ | |
1020 | void | |
1021 | ofproto_port_destroy(struct ofproto_port *ofproto_port) | |
1022 | { | |
1023 | free(ofproto_port->name); | |
1024 | free(ofproto_port->type); | |
1025 | } | |
1026 | ||
b5827b24 | 1027 | /* Initializes 'dump' to begin dumping the ports in an ofproto. |
3a6ccc8c | 1028 | * |
b5827b24 BP |
1029 | * This function provides no status indication. An error status for the entire |
1030 | * dump operation is provided when it is completed by calling | |
1031 | * ofproto_port_dump_done(). | |
1032 | */ | |
1033 | void | |
1034 | ofproto_port_dump_start(struct ofproto_port_dump *dump, | |
1035 | const struct ofproto *ofproto) | |
1036 | { | |
abe529af BP |
1037 | dump->ofproto = ofproto; |
1038 | dump->error = ofproto->ofproto_class->port_dump_start(ofproto, | |
1039 | &dump->state); | |
b5827b24 BP |
1040 | } |
1041 | ||
1042 | /* Attempts to retrieve another port from 'dump', which must have been created | |
1043 | * with ofproto_port_dump_start(). On success, stores a new ofproto_port into | |
1044 | * 'port' and returns true. On failure, returns false. | |
1045 | * | |
1046 | * Failure might indicate an actual error or merely that the last port has been | |
1047 | * dumped. An error status for the entire dump operation is provided when it | |
1048 | * is completed by calling ofproto_port_dump_done(). | |
1049 | * | |
1050 | * The ofproto owns the data stored in 'port'. It will remain valid until at | |
1051 | * least the next time 'dump' is passed to ofproto_port_dump_next() or | |
1052 | * ofproto_port_dump_done(). */ | |
1053 | bool | |
1054 | ofproto_port_dump_next(struct ofproto_port_dump *dump, | |
1055 | struct ofproto_port *port) | |
1056 | { | |
abe529af BP |
1057 | const struct ofproto *ofproto = dump->ofproto; |
1058 | ||
1059 | if (dump->error) { | |
1060 | return false; | |
1061 | } | |
b5827b24 | 1062 | |
abe529af BP |
1063 | dump->error = ofproto->ofproto_class->port_dump_next(ofproto, dump->state, |
1064 | port); | |
1065 | if (dump->error) { | |
1066 | ofproto->ofproto_class->port_dump_done(ofproto, dump->state); | |
1067 | return false; | |
b5827b24 | 1068 | } |
abe529af | 1069 | return true; |
b5827b24 BP |
1070 | } |
1071 | ||
1072 | /* Completes port table dump operation 'dump', which must have been created | |
1073 | * with ofproto_port_dump_start(). Returns 0 if the dump operation was | |
1074 | * error-free, otherwise a positive errno value describing the problem. */ | |
3a6ccc8c | 1075 | int |
b5827b24 | 1076 | ofproto_port_dump_done(struct ofproto_port_dump *dump) |
3a6ccc8c | 1077 | { |
abe529af BP |
1078 | const struct ofproto *ofproto = dump->ofproto; |
1079 | if (!dump->error) { | |
1080 | dump->error = ofproto->ofproto_class->port_dump_done(ofproto, | |
1081 | dump->state); | |
1082 | } | |
1083 | return dump->error == EOF ? 0 : dump->error; | |
b5827b24 BP |
1084 | } |
1085 | ||
1086 | /* Attempts to add 'netdev' as a port on 'ofproto'. If successful, returns 0 | |
892815f5 | 1087 | * and sets '*ofp_portp' to the new port's OpenFlow port number (if 'ofp_portp' |
b5827b24 BP |
1088 | * is non-null). On failure, returns a positive errno value and sets |
1089 | * '*ofp_portp' to OFPP_NONE (if 'ofp_portp' is non-null). */ | |
1090 | int | |
1091 | ofproto_port_add(struct ofproto *ofproto, struct netdev *netdev, | |
1092 | uint16_t *ofp_portp) | |
1093 | { | |
abe529af | 1094 | uint16_t ofp_port; |
3a6ccc8c BP |
1095 | int error; |
1096 | ||
abe529af | 1097 | error = ofproto->ofproto_class->port_add(ofproto, netdev, &ofp_port); |
1fa24dea BP |
1098 | if (!error) { |
1099 | update_port(ofproto, netdev_get_name(netdev)); | |
1100 | } | |
b5827b24 | 1101 | if (ofp_portp) { |
abe529af | 1102 | *ofp_portp = error ? OFPP_NONE : ofp_port; |
3a6ccc8c BP |
1103 | } |
1104 | return error; | |
1105 | } | |
1106 | ||
b5827b24 BP |
1107 | /* Looks up a port named 'devname' in 'ofproto'. On success, returns 0 and |
1108 | * initializes '*port' appropriately; on failure, returns a positive errno | |
1109 | * value. | |
1110 | * | |
abe529af | 1111 | * The caller owns the data in 'ofproto_port' and must free it with |
b5827b24 BP |
1112 | * ofproto_port_destroy() when it is no longer needed. */ |
1113 | int | |
1114 | ofproto_port_query_by_name(const struct ofproto *ofproto, const char *devname, | |
1115 | struct ofproto_port *port) | |
a4e2e1f2 | 1116 | { |
b5827b24 BP |
1117 | int error; |
1118 | ||
abe529af BP |
1119 | error = ofproto->ofproto_class->port_query_by_name(ofproto, devname, port); |
1120 | if (error) { | |
1121 | memset(port, 0, sizeof *port); | |
b5827b24 BP |
1122 | } |
1123 | return error; | |
a4e2e1f2 EJ |
1124 | } |
1125 | ||
b5827b24 | 1126 | /* Deletes port number 'ofp_port' from the datapath for 'ofproto'. |
3a6ccc8c | 1127 | * Returns 0 if successful, otherwise a positive errno. */ |
064af421 | 1128 | int |
b5827b24 | 1129 | ofproto_port_del(struct ofproto *ofproto, uint16_t ofp_port) |
064af421 | 1130 | { |
abe529af | 1131 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1264ec95 | 1132 | const char *name = ofport ? netdev_get_name(ofport->netdev) : "<unknown>"; |
3cf10406 | 1133 | int error; |
cdee00fd | 1134 | |
abe529af | 1135 | error = ofproto->ofproto_class->port_del(ofproto, ofp_port); |
892815f5 | 1136 | if (!error && ofport) { |
1264ec95 BP |
1137 | /* 'name' is the netdev's name and update_port() is going to close the |
1138 | * netdev. Just in case update_port() refers to 'name' after it | |
3a6ccc8c BP |
1139 | * destroys 'ofport', make a copy of it around the update_port() |
1140 | * call. */ | |
1141 | char *devname = xstrdup(name); | |
1142 | update_port(ofproto, devname); | |
1143 | free(devname); | |
3cf10406 BP |
1144 | } |
1145 | return error; | |
064af421 BP |
1146 | } |
1147 | ||
6c1491fb | 1148 | /* Adds a flow to OpenFlow flow table 0 in 'p' that matches 'cls_rule' and |
fa8b054f BP |
1149 | * performs the 'n_actions' actions in 'actions'. The new flow will not |
1150 | * timeout. | |
1151 | * | |
1152 | * If cls_rule->priority is in the range of priorities supported by OpenFlow | |
1153 | * (0...65535, inclusive) then the flow will be visible to OpenFlow | |
1154 | * controllers; otherwise, it will be hidden. | |
1155 | * | |
6c1491fb BP |
1156 | * The caller retains ownership of 'cls_rule' and 'actions'. |
1157 | * | |
1158 | * This is a helper function for in-band control and fail-open. */ | |
064af421 | 1159 | void |
7ee20df1 | 1160 | ofproto_add_flow(struct ofproto *ofproto, const struct cls_rule *cls_rule, |
fa8b054f | 1161 | const union ofp_action *actions, size_t n_actions) |
064af421 | 1162 | { |
7ee20df1 BP |
1163 | const struct rule *rule; |
1164 | ||
1165 | rule = rule_from_cls_rule(classifier_find_rule_exactly( | |
1166 | &ofproto->tables[0], cls_rule)); | |
1167 | if (!rule || !ofputil_actions_equal(rule->actions, rule->n_actions, | |
1168 | actions, n_actions)) { | |
a9a2da38 | 1169 | struct ofputil_flow_mod fm; |
7ee20df1 BP |
1170 | |
1171 | memset(&fm, 0, sizeof fm); | |
1172 | fm.cr = *cls_rule; | |
1173 | fm.buffer_id = UINT32_MAX; | |
1174 | fm.actions = (union ofp_action *) actions; | |
1175 | fm.n_actions = n_actions; | |
1176 | add_flow(ofproto, NULL, &fm, NULL); | |
1177 | } | |
064af421 BP |
1178 | } |
1179 | ||
75a75043 BP |
1180 | /* Executes the flow modification specified in 'fm'. Returns 0 on success, an |
1181 | * OpenFlow error code as encoded by ofp_mkerr() on failure, or | |
1182 | * OFPROTO_POSTPONE if the operation cannot be initiated now but may be retried | |
1183 | * later. | |
1184 | * | |
1185 | * This is a helper function for in-band control and fail-open. */ | |
1186 | int | |
1187 | ofproto_flow_mod(struct ofproto *ofproto, const struct ofputil_flow_mod *fm) | |
1188 | { | |
1189 | return handle_flow_mod__(ofproto, NULL, fm, NULL); | |
1190 | } | |
1191 | ||
6c1491fb BP |
1192 | /* Searches for a rule with matching criteria exactly equal to 'target' in |
1193 | * ofproto's table 0 and, if it finds one, deletes it. | |
1194 | * | |
1195 | * This is a helper function for in-band control and fail-open. */ | |
7ee20df1 | 1196 | bool |
cf3fad8a | 1197 | ofproto_delete_flow(struct ofproto *ofproto, const struct cls_rule *target) |
064af421 BP |
1198 | { |
1199 | struct rule *rule; | |
1200 | ||
6c1491fb BP |
1201 | rule = rule_from_cls_rule(classifier_find_rule_exactly( |
1202 | &ofproto->tables[0], target)); | |
7ee20df1 BP |
1203 | if (!rule) { |
1204 | /* No such rule -> success. */ | |
1205 | return true; | |
1206 | } else if (rule->pending) { | |
1207 | /* An operation on the rule is already pending -> failure. | |
1208 | * Caller must retry later if it's important. */ | |
1209 | return false; | |
1210 | } else { | |
1211 | /* Initiate deletion -> success. */ | |
7024dffe | 1212 | struct ofopgroup *group = ofopgroup_create_unattached(ofproto); |
7ee20df1 BP |
1213 | ofoperation_create(group, rule, OFOPERATION_DELETE); |
1214 | classifier_remove(&ofproto->tables[rule->table_id], &rule->cr); | |
1215 | rule->ofproto->ofproto_class->rule_destruct(rule); | |
1216 | ofopgroup_submit(group); | |
1217 | return true; | |
bcf84111 | 1218 | } |
5ecc9d81 | 1219 | |
142e1f5c BP |
1220 | } |
1221 | ||
7ee20df1 BP |
1222 | /* Starts the process of deleting all of the flows from all of ofproto's flow |
1223 | * tables and then reintroducing the flows required by in-band control and | |
1224 | * fail-open. The process will complete in a later call to ofproto_run(). */ | |
142e1f5c BP |
1225 | void |
1226 | ofproto_flush_flows(struct ofproto *ofproto) | |
1227 | { | |
7ee20df1 BP |
1228 | COVERAGE_INC(ofproto_flush); |
1229 | ofproto->state = S_FLUSH; | |
064af421 BP |
1230 | } |
1231 | \f | |
1232 | static void | |
1233 | reinit_ports(struct ofproto *p) | |
1234 | { | |
abe529af | 1235 | struct ofproto_port_dump dump; |
b3c01ed3 | 1236 | struct sset devnames; |
064af421 | 1237 | struct ofport *ofport; |
abe529af | 1238 | struct ofproto_port ofproto_port; |
b3c01ed3 | 1239 | const char *devname; |
064af421 | 1240 | |
898bf89d JP |
1241 | COVERAGE_INC(ofproto_reinit_ports); |
1242 | ||
b3c01ed3 | 1243 | sset_init(&devnames); |
4e8e4213 | 1244 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { |
1264ec95 | 1245 | sset_add(&devnames, netdev_get_name(ofport->netdev)); |
064af421 | 1246 | } |
abe529af BP |
1247 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { |
1248 | sset_add(&devnames, ofproto_port.name); | |
064af421 | 1249 | } |
064af421 | 1250 | |
b3c01ed3 BP |
1251 | SSET_FOR_EACH (devname, &devnames) { |
1252 | update_port(p, devname); | |
064af421 | 1253 | } |
b3c01ed3 | 1254 | sset_destroy(&devnames); |
064af421 BP |
1255 | } |
1256 | ||
abe529af BP |
1257 | /* Opens and returns a netdev for 'ofproto_port', or a null pointer if the |
1258 | * netdev cannot be opened. On success, also fills in 'opp'. */ | |
b33951b8 | 1259 | static struct netdev * |
abe529af | 1260 | ofport_open(const struct ofproto_port *ofproto_port, struct ofp_phy_port *opp) |
064af421 | 1261 | { |
118c4676 | 1262 | uint32_t curr, advertised, supported, peer; |
064af421 | 1263 | enum netdev_flags flags; |
064af421 | 1264 | struct netdev *netdev; |
064af421 BP |
1265 | int error; |
1266 | ||
18812dff | 1267 | error = netdev_open(ofproto_port->name, ofproto_port->type, &netdev); |
064af421 BP |
1268 | if (error) { |
1269 | VLOG_WARN_RL(&rl, "ignoring port %s (%"PRIu16") because netdev %s " | |
1270 | "cannot be opened (%s)", | |
abe529af BP |
1271 | ofproto_port->name, ofproto_port->ofp_port, |
1272 | ofproto_port->name, strerror(error)); | |
064af421 BP |
1273 | return NULL; |
1274 | } | |
1275 | ||
064af421 | 1276 | netdev_get_flags(netdev, &flags); |
118c4676 | 1277 | netdev_get_features(netdev, &curr, &advertised, &supported, &peer); |
064af421 | 1278 | |
abe529af | 1279 | opp->port_no = htons(ofproto_port->ofp_port); |
b33951b8 | 1280 | netdev_get_etheraddr(netdev, opp->hw_addr); |
abe529af | 1281 | ovs_strzcpy(opp->name, ofproto_port->name, sizeof opp->name); |
118c4676 BP |
1282 | opp->config = flags & NETDEV_UP ? 0 : htonl(OFPPC_PORT_DOWN); |
1283 | opp->state = netdev_get_carrier(netdev) ? 0 : htonl(OFPPS_LINK_DOWN); | |
1284 | opp->curr = htonl(curr); | |
1285 | opp->advertised = htonl(advertised); | |
1286 | opp->supported = htonl(supported); | |
1287 | opp->peer = htonl(peer); | |
1288 | ||
b33951b8 | 1289 | return netdev; |
064af421 BP |
1290 | } |
1291 | ||
b33951b8 BP |
1292 | /* Returns true if most fields of 'a' and 'b' are equal. Differences in name, |
1293 | * port number, and 'config' bits other than OFPPC_PORT_DOWN are | |
1294 | * disregarded. */ | |
1295 | static bool | |
1296 | ofport_equal(const struct ofp_phy_port *a, const struct ofp_phy_port *b) | |
064af421 | 1297 | { |
064af421 | 1298 | BUILD_ASSERT_DECL(sizeof *a == 48); /* Detect ofp_phy_port changes. */ |
b33951b8 | 1299 | return (!memcmp(a->hw_addr, b->hw_addr, sizeof a->hw_addr) |
064af421 | 1300 | && a->state == b->state |
118c4676 | 1301 | && !((a->config ^ b->config) & htonl(OFPPC_PORT_DOWN)) |
064af421 BP |
1302 | && a->curr == b->curr |
1303 | && a->advertised == b->advertised | |
1304 | && a->supported == b->supported | |
1305 | && a->peer == b->peer); | |
1306 | } | |
1307 | ||
b33951b8 BP |
1308 | /* Adds an ofport to 'p' initialized based on the given 'netdev' and 'opp'. |
1309 | * The caller must ensure that 'p' does not have a conflicting ofport (that is, | |
1310 | * one with the same name or port number). */ | |
064af421 | 1311 | static void |
b33951b8 BP |
1312 | ofport_install(struct ofproto *p, |
1313 | struct netdev *netdev, const struct ofp_phy_port *opp) | |
064af421 | 1314 | { |
b33951b8 BP |
1315 | const char *netdev_name = netdev_get_name(netdev); |
1316 | struct ofport *ofport; | |
9197df76 | 1317 | int dev_mtu; |
abe529af | 1318 | int error; |
72b06300 | 1319 | |
b33951b8 | 1320 | /* Create ofport. */ |
abe529af BP |
1321 | ofport = p->ofproto_class->port_alloc(); |
1322 | if (!ofport) { | |
1323 | error = ENOMEM; | |
1324 | goto error; | |
1325 | } | |
0f7d71a5 | 1326 | ofport->ofproto = p; |
b33951b8 | 1327 | ofport->netdev = netdev; |
031d8bff | 1328 | ofport->change_seq = netdev_change_seq(netdev); |
b33951b8 | 1329 | ofport->opp = *opp; |
abe529af | 1330 | ofport->ofp_port = ntohs(opp->port_no); |
b33951b8 BP |
1331 | |
1332 | /* Add port to 'p'. */ | |
abe529af | 1333 | hmap_insert(&p->ports, &ofport->hmap_node, hash_int(ofport->ofp_port, 0)); |
72b06300 | 1334 | shash_add(&p->port_by_name, netdev_name, ofport); |
abe529af | 1335 | |
9197df76 JP |
1336 | if (!netdev_get_mtu(netdev, &dev_mtu)) { |
1337 | set_internal_devs_mtu(p); | |
1338 | ofport->mtu = dev_mtu; | |
1339 | } else { | |
1340 | ofport->mtu = 0; | |
1341 | } | |
1342 | ||
abe529af BP |
1343 | /* Let the ofproto_class initialize its private data. */ |
1344 | error = p->ofproto_class->port_construct(ofport); | |
1345 | if (error) { | |
1346 | goto error; | |
1347 | } | |
1348 | connmgr_send_port_status(p->connmgr, opp, OFPPR_ADD); | |
1349 | return; | |
1350 | ||
1351 | error: | |
1352 | VLOG_WARN_RL(&rl, "%s: could not add port %s (%s)", | |
1353 | p->name, netdev_name, strerror(error)); | |
1354 | if (ofport) { | |
1355 | ofport_destroy__(ofport); | |
1356 | } else { | |
1357 | netdev_close(netdev); | |
72b06300 | 1358 | } |
064af421 BP |
1359 | } |
1360 | ||
b33951b8 | 1361 | /* Removes 'ofport' from 'p' and destroys it. */ |
064af421 | 1362 | static void |
0f7d71a5 | 1363 | ofport_remove(struct ofport *ofport) |
064af421 | 1364 | { |
fa066f01 BP |
1365 | connmgr_send_port_status(ofport->ofproto->connmgr, &ofport->opp, |
1366 | OFPPR_DELETE); | |
abe529af | 1367 | ofport_destroy(ofport); |
b33951b8 BP |
1368 | } |
1369 | ||
1370 | /* If 'ofproto' contains an ofport named 'name', removes it from 'ofproto' and | |
1371 | * destroys it. */ | |
1372 | static void | |
1373 | ofport_remove_with_name(struct ofproto *ofproto, const char *name) | |
1374 | { | |
1375 | struct ofport *port = shash_find_data(&ofproto->port_by_name, name); | |
1376 | if (port) { | |
0f7d71a5 | 1377 | ofport_remove(port); |
b33951b8 BP |
1378 | } |
1379 | } | |
1380 | ||
38775ab5 | 1381 | /* Updates 'port' with new 'opp' description. |
b33951b8 BP |
1382 | * |
1383 | * Does not handle a name or port number change. The caller must implement | |
1384 | * such a change as a delete followed by an add. */ | |
1385 | static void | |
abe529af | 1386 | ofport_modified(struct ofport *port, struct ofp_phy_port *opp) |
b33951b8 BP |
1387 | { |
1388 | memcpy(port->opp.hw_addr, opp->hw_addr, ETH_ADDR_LEN); | |
118c4676 BP |
1389 | port->opp.config = ((port->opp.config & ~htonl(OFPPC_PORT_DOWN)) |
1390 | | (opp->config & htonl(OFPPC_PORT_DOWN))); | |
b33951b8 BP |
1391 | port->opp.state = opp->state; |
1392 | port->opp.curr = opp->curr; | |
1393 | port->opp.advertised = opp->advertised; | |
1394 | port->opp.supported = opp->supported; | |
1395 | port->opp.peer = opp->peer; | |
1396 | ||
abe529af | 1397 | connmgr_send_port_status(port->ofproto->connmgr, &port->opp, OFPPR_MODIFY); |
064af421 BP |
1398 | } |
1399 | ||
5a2dfd47 JP |
1400 | /* Update OpenFlow 'state' in 'port' and notify controller. */ |
1401 | void | |
1402 | ofproto_port_set_state(struct ofport *port, ovs_be32 state) | |
1403 | { | |
1404 | if (port->opp.state != state) { | |
1405 | port->opp.state = state; | |
1406 | connmgr_send_port_status(port->ofproto->connmgr, &port->opp, | |
1407 | OFPPR_MODIFY); | |
1408 | } | |
1409 | } | |
1410 | ||
abe529af BP |
1411 | void |
1412 | ofproto_port_unregister(struct ofproto *ofproto, uint16_t ofp_port) | |
e7934396 | 1413 | { |
abe529af BP |
1414 | struct ofport *port = ofproto_get_port(ofproto, ofp_port); |
1415 | if (port) { | |
52a90c29 BP |
1416 | if (port->ofproto->ofproto_class->set_realdev) { |
1417 | port->ofproto->ofproto_class->set_realdev(port, 0, 0); | |
1418 | } | |
b308140a JP |
1419 | if (port->ofproto->ofproto_class->set_stp_port) { |
1420 | port->ofproto->ofproto_class->set_stp_port(port, NULL); | |
1421 | } | |
abe529af | 1422 | if (port->ofproto->ofproto_class->set_cfm) { |
a5610457 | 1423 | port->ofproto->ofproto_class->set_cfm(port, NULL); |
abe529af BP |
1424 | } |
1425 | if (port->ofproto->ofproto_class->bundle_remove) { | |
1426 | port->ofproto->ofproto_class->bundle_remove(port); | |
e7934396 BP |
1427 | } |
1428 | } | |
1429 | } | |
1430 | ||
1431 | static void | |
abe529af | 1432 | ofport_destroy__(struct ofport *port) |
e7934396 | 1433 | { |
abe529af BP |
1434 | struct ofproto *ofproto = port->ofproto; |
1435 | const char *name = netdev_get_name(port->netdev); | |
fa066f01 | 1436 | |
abe529af BP |
1437 | hmap_remove(&ofproto->ports, &port->hmap_node); |
1438 | shash_delete(&ofproto->port_by_name, | |
1439 | shash_find(&ofproto->port_by_name, name)); | |
fa066f01 | 1440 | |
abe529af BP |
1441 | netdev_close(port->netdev); |
1442 | ofproto->ofproto_class->port_dealloc(port); | |
e7934396 BP |
1443 | } |
1444 | ||
064af421 | 1445 | static void |
abe529af | 1446 | ofport_destroy(struct ofport *port) |
064af421 | 1447 | { |
fa066f01 | 1448 | if (port) { |
abe529af BP |
1449 | port->ofproto->ofproto_class->port_destruct(port); |
1450 | ofport_destroy__(port); | |
1451 | } | |
064af421 BP |
1452 | } |
1453 | ||
abe529af BP |
1454 | struct ofport * |
1455 | ofproto_get_port(const struct ofproto *ofproto, uint16_t ofp_port) | |
ca0f572c BP |
1456 | { |
1457 | struct ofport *port; | |
1458 | ||
4e8e4213 | 1459 | HMAP_FOR_EACH_IN_BUCKET (port, hmap_node, |
abe529af BP |
1460 | hash_int(ofp_port, 0), &ofproto->ports) { |
1461 | if (port->ofp_port == ofp_port) { | |
ca0f572c BP |
1462 | return port; |
1463 | } | |
1464 | } | |
1465 | return NULL; | |
1466 | } | |
1467 | ||
064af421 | 1468 | static void |
b33951b8 | 1469 | update_port(struct ofproto *ofproto, const char *name) |
064af421 | 1470 | { |
abe529af | 1471 | struct ofproto_port ofproto_port; |
b33951b8 BP |
1472 | struct ofp_phy_port opp; |
1473 | struct netdev *netdev; | |
1474 | struct ofport *port; | |
064af421 BP |
1475 | |
1476 | COVERAGE_INC(ofproto_update_port); | |
c874dc6d | 1477 | |
b33951b8 | 1478 | /* Fetch 'name''s location and properties from the datapath. */ |
abe529af BP |
1479 | netdev = (!ofproto_port_query_by_name(ofproto, name, &ofproto_port) |
1480 | ? ofport_open(&ofproto_port, &opp) | |
b33951b8 BP |
1481 | : NULL); |
1482 | if (netdev) { | |
abe529af | 1483 | port = ofproto_get_port(ofproto, ofproto_port.ofp_port); |
b33951b8 | 1484 | if (port && !strcmp(netdev_get_name(port->netdev), name)) { |
e65942a0 | 1485 | struct netdev *old_netdev = port->netdev; |
9197df76 | 1486 | int dev_mtu; |
e65942a0 | 1487 | |
b33951b8 BP |
1488 | /* 'name' hasn't changed location. Any properties changed? */ |
1489 | if (!ofport_equal(&port->opp, &opp)) { | |
abe529af BP |
1490 | ofport_modified(port, &opp); |
1491 | } | |
1492 | ||
9197df76 JP |
1493 | /* If this is a non-internal port and the MTU changed, check |
1494 | * if the datapath's MTU needs to be updated. */ | |
1495 | if (strcmp(netdev_get_type(netdev), "internal") | |
1496 | && !netdev_get_mtu(netdev, &dev_mtu) | |
1497 | && port->mtu != dev_mtu) { | |
1498 | set_internal_devs_mtu(ofproto); | |
1499 | port->mtu = dev_mtu; | |
1500 | } | |
1501 | ||
e65942a0 BP |
1502 | /* Install the newly opened netdev in case it has changed. |
1503 | * Don't close the old netdev yet in case port_modified has to | |
1504 | * remove a retained reference to it.*/ | |
abe529af | 1505 | port->netdev = netdev; |
031d8bff | 1506 | port->change_seq = netdev_change_seq(netdev); |
abe529af BP |
1507 | |
1508 | if (port->ofproto->ofproto_class->port_modified) { | |
1509 | port->ofproto->ofproto_class->port_modified(port); | |
b33951b8 | 1510 | } |
e65942a0 BP |
1511 | |
1512 | netdev_close(old_netdev); | |
b33951b8 BP |
1513 | } else { |
1514 | /* If 'port' is nonnull then its name differs from 'name' and thus | |
1515 | * we should delete it. If we think there's a port named 'name' | |
1516 | * then its port number must be wrong now so delete it too. */ | |
1517 | if (port) { | |
0f7d71a5 | 1518 | ofport_remove(port); |
b33951b8 BP |
1519 | } |
1520 | ofport_remove_with_name(ofproto, name); | |
1521 | ofport_install(ofproto, netdev, &opp); | |
c874dc6d | 1522 | } |
b33951b8 BP |
1523 | } else { |
1524 | /* Any port named 'name' is gone now. */ | |
1525 | ofport_remove_with_name(ofproto, name); | |
c874dc6d | 1526 | } |
abe529af | 1527 | ofproto_port_destroy(&ofproto_port); |
064af421 BP |
1528 | } |
1529 | ||
1530 | static int | |
1531 | init_ports(struct ofproto *p) | |
1532 | { | |
abe529af BP |
1533 | struct ofproto_port_dump dump; |
1534 | struct ofproto_port ofproto_port; | |
1535 | ||
1536 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { | |
1537 | uint16_t ofp_port = ofproto_port.ofp_port; | |
1538 | if (ofproto_get_port(p, ofp_port)) { | |
1539 | VLOG_WARN_RL(&rl, "ignoring duplicate port %"PRIu16" in datapath", | |
1540 | ofp_port); | |
1541 | } else if (shash_find(&p->port_by_name, ofproto_port.name)) { | |
1542 | VLOG_WARN_RL(&rl, "ignoring duplicate device %s in datapath", | |
1543 | ofproto_port.name); | |
1544 | } else { | |
b33951b8 BP |
1545 | struct ofp_phy_port opp; |
1546 | struct netdev *netdev; | |
1547 | ||
abe529af | 1548 | netdev = ofport_open(&ofproto_port, &opp); |
b33951b8 BP |
1549 | if (netdev) { |
1550 | ofport_install(p, netdev, &opp); | |
064af421 BP |
1551 | } |
1552 | } | |
1553 | } | |
b0ec0f27 | 1554 | |
064af421 BP |
1555 | return 0; |
1556 | } | |
9197df76 JP |
1557 | |
1558 | /* Find the minimum MTU of all non-datapath devices attached to 'p'. | |
1559 | * Returns ETH_PAYLOAD_MAX or the minimum of the ports. */ | |
1560 | static int | |
1561 | find_min_mtu(struct ofproto *p) | |
1562 | { | |
1563 | struct ofport *ofport; | |
1564 | int mtu = 0; | |
1565 | ||
1566 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
1567 | struct netdev *netdev = ofport->netdev; | |
1568 | int dev_mtu; | |
1569 | ||
1570 | /* Skip any internal ports, since that's what we're trying to | |
1571 | * set. */ | |
1572 | if (!strcmp(netdev_get_type(netdev), "internal")) { | |
1573 | continue; | |
1574 | } | |
1575 | ||
1576 | if (netdev_get_mtu(netdev, &dev_mtu)) { | |
1577 | continue; | |
1578 | } | |
1579 | if (!mtu || dev_mtu < mtu) { | |
1580 | mtu = dev_mtu; | |
1581 | } | |
1582 | } | |
1583 | ||
1584 | return mtu ? mtu: ETH_PAYLOAD_MAX; | |
1585 | } | |
1586 | ||
1587 | /* Set the MTU of all datapath devices on 'p' to the minimum of the | |
1588 | * non-datapath ports. */ | |
1589 | static void | |
1590 | set_internal_devs_mtu(struct ofproto *p) | |
1591 | { | |
1592 | struct ofport *ofport; | |
1593 | int mtu = find_min_mtu(p); | |
1594 | ||
1595 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
1596 | struct netdev *netdev = ofport->netdev; | |
1597 | ||
1598 | if (!strcmp(netdev_get_type(netdev), "internal")) { | |
1599 | netdev_set_mtu(netdev, mtu); | |
1600 | } | |
1601 | } | |
1602 | } | |
064af421 | 1603 | \f |
064af421 | 1604 | static void |
abe529af | 1605 | ofproto_rule_destroy__(struct rule *rule) |
064af421 BP |
1606 | { |
1607 | free(rule->actions); | |
abe529af | 1608 | rule->ofproto->ofproto_class->rule_dealloc(rule); |
064af421 BP |
1609 | } |
1610 | ||
7ee20df1 BP |
1611 | /* This function allows an ofproto implementation to destroy any rules that |
1612 | * remain when its ->destruct() function is called. The caller must have | |
1613 | * already uninitialized any derived members of 'rule' (step 5 described in the | |
5bee6e26 JP |
1614 | * large comment in ofproto/ofproto-provider.h titled "Life Cycle"). |
1615 | * This function implements steps 6 and 7. | |
7ee20df1 BP |
1616 | * |
1617 | * This function should only be called from an ofproto implementation's | |
1618 | * ->destruct() function. It is not suitable elsewhere. */ | |
abe529af BP |
1619 | void |
1620 | ofproto_rule_destroy(struct rule *rule) | |
064af421 | 1621 | { |
7ee20df1 BP |
1622 | assert(!rule->pending); |
1623 | classifier_remove(&rule->ofproto->tables[rule->table_id], &rule->cr); | |
1624 | ofproto_rule_destroy__(rule); | |
064af421 BP |
1625 | } |
1626 | ||
bcf84111 BP |
1627 | /* Returns true if 'rule' has an OpenFlow OFPAT_OUTPUT or OFPAT_ENQUEUE action |
1628 | * that outputs to 'out_port' (output to OFPP_FLOOD and OFPP_ALL doesn't | |
1629 | * count). */ | |
064af421 | 1630 | static bool |
9ed18e46 | 1631 | rule_has_out_port(const struct rule *rule, uint16_t out_port) |
064af421 BP |
1632 | { |
1633 | const union ofp_action *oa; | |
b4b8c781 | 1634 | size_t left; |
064af421 | 1635 | |
9ed18e46 | 1636 | if (out_port == OFPP_NONE) { |
064af421 BP |
1637 | return true; |
1638 | } | |
b4b8c781 | 1639 | OFPUTIL_ACTION_FOR_EACH_UNSAFE (oa, left, rule->actions, rule->n_actions) { |
9ed18e46 | 1640 | if (action_outputs_to_port(oa, htons(out_port))) { |
064af421 BP |
1641 | return true; |
1642 | } | |
1643 | } | |
1644 | return false; | |
1645 | } | |
1646 | ||
bcf84111 | 1647 | /* Executes the actions indicated by 'rule' on 'packet' and credits 'rule''s |
bcf84111 BP |
1648 | * statistics appropriately. 'packet' must have at least sizeof(struct |
1649 | * ofp_packet_in) bytes of headroom. | |
064af421 | 1650 | * |
bcf84111 BP |
1651 | * 'packet' doesn't necessarily have to match 'rule'. 'rule' will be credited |
1652 | * with statistics for 'packet' either way. | |
1653 | * | |
1654 | * Takes ownership of 'packet'. */ | |
5bf0e941 | 1655 | static int |
abe529af | 1656 | rule_execute(struct rule *rule, uint16_t in_port, struct ofpbuf *packet) |
eedc0097 | 1657 | { |
bcf84111 | 1658 | struct flow flow; |
eedc0097 | 1659 | |
abe529af | 1660 | assert(ofpbuf_headroom(packet) >= sizeof(struct ofp_packet_in)); |
eedc0097 | 1661 | |
abff858b | 1662 | flow_extract(packet, 0, 0, in_port, &flow); |
5bf0e941 | 1663 | return rule->ofproto->ofproto_class->rule_execute(rule, &flow, packet); |
350a665f BP |
1664 | } |
1665 | ||
abe529af BP |
1666 | /* Returns true if 'rule' should be hidden from the controller. |
1667 | * | |
1668 | * Rules with priority higher than UINT16_MAX are set up by ofproto itself | |
1669 | * (e.g. by in-band control) and are intentionally hidden from the | |
1670 | * controller. */ | |
1671 | static bool | |
1672 | rule_is_hidden(const struct rule *rule) | |
b6c9e612 | 1673 | { |
abe529af | 1674 | return rule->cr.priority > UINT16_MAX; |
7b064a79 | 1675 | } |
fa066f01 | 1676 | \f |
064af421 | 1677 | static int |
d1e2cf21 | 1678 | handle_echo_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 1679 | { |
b0421aa2 | 1680 | ofconn_send_reply(ofconn, make_echo_reply(oh)); |
064af421 | 1681 | return 0; |
064af421 BP |
1682 | } |
1683 | ||
064af421 | 1684 | static int |
d1e2cf21 | 1685 | handle_features_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 1686 | { |
64ff1d96 | 1687 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
064af421 BP |
1688 | struct ofp_switch_features *osf; |
1689 | struct ofpbuf *buf; | |
064af421 | 1690 | struct ofport *port; |
6c1491fb BP |
1691 | bool arp_match_ip; |
1692 | uint32_t actions; | |
064af421 | 1693 | |
6c1491fb BP |
1694 | ofproto->ofproto_class->get_features(ofproto, &arp_match_ip, &actions); |
1695 | assert(actions & (1 << OFPAT_OUTPUT)); /* sanity check */ | |
064af421 | 1696 | |
064af421 | 1697 | osf = make_openflow_xid(sizeof *osf, OFPT_FEATURES_REPLY, oh->xid, &buf); |
64ff1d96 | 1698 | osf->datapath_id = htonll(ofproto->datapath_id); |
064af421 | 1699 | osf->n_buffers = htonl(pktbuf_capacity()); |
6c1491fb | 1700 | osf->n_tables = ofproto->n_tables; |
064af421 | 1701 | osf->capabilities = htonl(OFPC_FLOW_STATS | OFPC_TABLE_STATS | |
428d83e6 | 1702 | OFPC_PORT_STATS | OFPC_QUEUE_STATS); |
6c1491fb BP |
1703 | if (arp_match_ip) { |
1704 | osf->capabilities |= htonl(OFPC_ARP_MATCH_IP); | |
1705 | } | |
1706 | osf->actions = htonl(actions); | |
064af421 | 1707 | |
64ff1d96 | 1708 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
9cfcdadf | 1709 | ofpbuf_put(buf, &port->opp, sizeof port->opp); |
064af421 | 1710 | } |
064af421 | 1711 | |
b0421aa2 | 1712 | ofconn_send_reply(ofconn, buf); |
064af421 BP |
1713 | return 0; |
1714 | } | |
064af421 | 1715 | |
064af421 | 1716 | static int |
d1e2cf21 | 1717 | handle_get_config_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 1718 | { |
64ff1d96 | 1719 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
064af421 | 1720 | struct ofp_switch_config *osc; |
7257b535 | 1721 | struct ofpbuf *buf; |
959a2ecd | 1722 | |
064af421 BP |
1723 | /* Send reply. */ |
1724 | osc = make_openflow_xid(sizeof *osc, OFPT_GET_CONFIG_REPLY, oh->xid, &buf); | |
7257b535 | 1725 | osc->flags = htons(ofproto->frag_handling); |
810605a2 | 1726 | osc->miss_send_len = htons(ofconn_get_miss_send_len(ofconn)); |
b0421aa2 | 1727 | ofconn_send_reply(ofconn, buf); |
2d70a31a | 1728 | |
064af421 BP |
1729 | return 0; |
1730 | } | |
064af421 | 1731 | |
064af421 | 1732 | static int |
d1e2cf21 | 1733 | handle_set_config(struct ofconn *ofconn, const struct ofp_switch_config *osc) |
064af421 | 1734 | { |
64ff1d96 | 1735 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
d1e2cf21 | 1736 | uint16_t flags = ntohs(osc->flags); |
2d70a31a | 1737 | |
7257b535 BP |
1738 | if (ofconn_get_type(ofconn) != OFCONN_PRIMARY |
1739 | || ofconn_get_role(ofconn) != NX_ROLE_SLAVE) { | |
1740 | enum ofp_config_flags cur = ofproto->frag_handling; | |
1741 | enum ofp_config_flags next = flags & OFPC_FRAG_MASK; | |
1742 | ||
1743 | assert((cur & OFPC_FRAG_MASK) == cur); | |
1744 | if (cur != next) { | |
1745 | if (ofproto->ofproto_class->set_frag_handling(ofproto, next)) { | |
1746 | ofproto->frag_handling = next; | |
1747 | } else { | |
1748 | VLOG_WARN_RL(&rl, "%s: unsupported fragment handling mode %s", | |
1749 | ofproto->name, | |
1750 | ofputil_frag_handling_to_string(next)); | |
1751 | } | |
064af421 BP |
1752 | } |
1753 | } | |
ebe482fd | 1754 | |
810605a2 | 1755 | ofconn_set_miss_send_len(ofconn, ntohs(osc->miss_send_len)); |
0ad9b732 | 1756 | |
064af421 | 1757 | return 0; |
064af421 BP |
1758 | } |
1759 | ||
9deba63b BP |
1760 | /* Checks whether 'ofconn' is a slave controller. If so, returns an OpenFlow |
1761 | * error message code (composed with ofp_mkerr()) for the caller to propagate | |
76589937 | 1762 | * upward. Otherwise, returns 0. */ |
9deba63b | 1763 | static int |
76589937 | 1764 | reject_slave_controller(const struct ofconn *ofconn) |
9deba63b | 1765 | { |
1ce0a5fa BP |
1766 | if (ofconn_get_type(ofconn) == OFCONN_PRIMARY |
1767 | && ofconn_get_role(ofconn) == NX_ROLE_SLAVE) { | |
9deba63b BP |
1768 | return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_EPERM); |
1769 | } else { | |
1770 | return 0; | |
1771 | } | |
1772 | } | |
1773 | ||
064af421 | 1774 | static int |
d1e2cf21 | 1775 | handle_packet_out(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 1776 | { |
64ff1d96 | 1777 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 BP |
1778 | struct ofp_packet_out *opo; |
1779 | struct ofpbuf payload, *buffer; | |
ac51afaf | 1780 | union ofp_action *ofp_actions; |
ac51afaf | 1781 | struct ofpbuf request; |
ae412e7d | 1782 | struct flow flow; |
ac51afaf | 1783 | size_t n_ofp_actions; |
e1154f71 | 1784 | uint16_t in_port; |
064af421 BP |
1785 | int error; |
1786 | ||
ac51afaf BP |
1787 | COVERAGE_INC(ofproto_packet_out); |
1788 | ||
76589937 | 1789 | error = reject_slave_controller(ofconn); |
9deba63b BP |
1790 | if (error) { |
1791 | return error; | |
1792 | } | |
1793 | ||
ac51afaf | 1794 | /* Get ofp_packet_out. */ |
0bc9407d | 1795 | ofpbuf_use_const(&request, oh, ntohs(oh->length)); |
bbc32a88 | 1796 | opo = ofpbuf_pull(&request, offsetof(struct ofp_packet_out, actions)); |
ac51afaf BP |
1797 | |
1798 | /* Get actions. */ | |
1799 | error = ofputil_pull_actions(&request, ntohs(opo->actions_len), | |
1800 | &ofp_actions, &n_ofp_actions); | |
064af421 BP |
1801 | if (error) { |
1802 | return error; | |
1803 | } | |
064af421 | 1804 | |
ac51afaf | 1805 | /* Get payload. */ |
064af421 | 1806 | if (opo->buffer_id != htonl(UINT32_MAX)) { |
10d0a1d2 | 1807 | error = ofconn_pktbuf_retrieve(ofconn, ntohl(opo->buffer_id), |
109b8459 | 1808 | &buffer, NULL); |
7778bd15 | 1809 | if (error || !buffer) { |
064af421 BP |
1810 | return error; |
1811 | } | |
1812 | payload = *buffer; | |
1813 | } else { | |
ac51afaf | 1814 | payload = request; |
064af421 BP |
1815 | buffer = NULL; |
1816 | } | |
1817 | ||
e1154f71 BP |
1818 | /* Get in_port and partially validate it. |
1819 | * | |
1820 | * We don't know what range of ports the ofproto actually implements, but | |
1821 | * we do know that only certain reserved ports (numbered OFPP_MAX and | |
1822 | * above) are valid. */ | |
1823 | in_port = ntohs(opo->in_port); | |
1824 | if (in_port >= OFPP_MAX && in_port != OFPP_LOCAL && in_port != OFPP_NONE) { | |
1825 | return ofp_mkerr_nicira(OFPET_BAD_REQUEST, NXBRC_BAD_IN_PORT); | |
1826 | } | |
1827 | ||
abe529af | 1828 | /* Send out packet. */ |
e1154f71 | 1829 | flow_extract(&payload, 0, 0, in_port, &flow); |
abe529af BP |
1830 | error = p->ofproto_class->packet_out(p, &payload, &flow, |
1831 | ofp_actions, n_ofp_actions); | |
ac51afaf | 1832 | ofpbuf_delete(buffer); |
abe529af BP |
1833 | |
1834 | return error; | |
064af421 BP |
1835 | } |
1836 | ||
1837 | static void | |
abe529af | 1838 | update_port_config(struct ofport *port, ovs_be32 config, ovs_be32 mask) |
064af421 | 1839 | { |
abe529af BP |
1840 | ovs_be32 old_config = port->opp.config; |
1841 | ||
064af421 | 1842 | mask &= config ^ port->opp.config; |
118c4676 BP |
1843 | if (mask & htonl(OFPPC_PORT_DOWN)) { |
1844 | if (config & htonl(OFPPC_PORT_DOWN)) { | |
064af421 BP |
1845 | netdev_turn_flags_off(port->netdev, NETDEV_UP, true); |
1846 | } else { | |
1847 | netdev_turn_flags_on(port->netdev, NETDEV_UP, true); | |
1848 | } | |
1849 | } | |
abe529af BP |
1850 | |
1851 | port->opp.config ^= mask & (htonl(OFPPC_NO_RECV | OFPPC_NO_RECV_STP | | |
1852 | OFPPC_NO_FLOOD | OFPPC_NO_FWD | | |
1853 | OFPPC_NO_PACKET_IN)); | |
1854 | if (port->opp.config != old_config) { | |
1855 | port->ofproto->ofproto_class->port_reconfigured(port, old_config); | |
064af421 BP |
1856 | } |
1857 | } | |
1858 | ||
1859 | static int | |
d1e2cf21 | 1860 | handle_port_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 1861 | { |
64ff1d96 | 1862 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
d1e2cf21 | 1863 | const struct ofp_port_mod *opm = (const struct ofp_port_mod *) oh; |
064af421 BP |
1864 | struct ofport *port; |
1865 | int error; | |
1866 | ||
76589937 | 1867 | error = reject_slave_controller(ofconn); |
9deba63b BP |
1868 | if (error) { |
1869 | return error; | |
1870 | } | |
064af421 | 1871 | |
abe529af | 1872 | port = ofproto_get_port(p, ntohs(opm->port_no)); |
064af421 BP |
1873 | if (!port) { |
1874 | return ofp_mkerr(OFPET_PORT_MOD_FAILED, OFPPMFC_BAD_PORT); | |
1875 | } else if (memcmp(port->opp.hw_addr, opm->hw_addr, OFP_ETH_ALEN)) { | |
1876 | return ofp_mkerr(OFPET_PORT_MOD_FAILED, OFPPMFC_BAD_HW_ADDR); | |
1877 | } else { | |
abe529af | 1878 | update_port_config(port, opm->config, opm->mask); |
064af421 BP |
1879 | if (opm->advertise) { |
1880 | netdev_set_advertisements(port->netdev, ntohl(opm->advertise)); | |
1881 | } | |
1882 | } | |
1883 | return 0; | |
1884 | } | |
1885 | ||
064af421 | 1886 | static int |
3269c562 | 1887 | handle_desc_stats_request(struct ofconn *ofconn, |
63f2140a | 1888 | const struct ofp_stats_msg *request) |
064af421 | 1889 | { |
64ff1d96 | 1890 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 BP |
1891 | struct ofp_desc_stats *ods; |
1892 | struct ofpbuf *msg; | |
1893 | ||
63f2140a | 1894 | ods = ofputil_make_stats_reply(sizeof *ods, request, &msg); |
5a719c38 JP |
1895 | ovs_strlcpy(ods->mfr_desc, p->mfr_desc, sizeof ods->mfr_desc); |
1896 | ovs_strlcpy(ods->hw_desc, p->hw_desc, sizeof ods->hw_desc); | |
1897 | ovs_strlcpy(ods->sw_desc, p->sw_desc, sizeof ods->sw_desc); | |
1898 | ovs_strlcpy(ods->serial_num, p->serial_desc, sizeof ods->serial_num); | |
1899 | ovs_strlcpy(ods->dp_desc, p->dp_desc, sizeof ods->dp_desc); | |
b0421aa2 | 1900 | ofconn_send_reply(ofconn, msg); |
064af421 BP |
1901 | |
1902 | return 0; | |
1903 | } | |
1904 | ||
064af421 | 1905 | static int |
3269c562 | 1906 | handle_table_stats_request(struct ofconn *ofconn, |
63f2140a | 1907 | const struct ofp_stats_msg *request) |
064af421 | 1908 | { |
64ff1d96 | 1909 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 BP |
1910 | struct ofp_table_stats *ots; |
1911 | struct ofpbuf *msg; | |
6c1491fb | 1912 | size_t i; |
064af421 | 1913 | |
63f2140a | 1914 | ofputil_make_stats_reply(sizeof(struct ofp_stats_msg), request, &msg); |
064af421 | 1915 | |
6c1491fb BP |
1916 | ots = ofpbuf_put_zeros(msg, sizeof *ots * p->n_tables); |
1917 | for (i = 0; i < p->n_tables; i++) { | |
1918 | ots[i].table_id = i; | |
35aa7a21 | 1919 | sprintf(ots[i].name, "table%zu", i); |
00794817 | 1920 | ots[i].wildcards = htonl(OFPFW_ALL); |
6c1491fb BP |
1921 | ots[i].max_entries = htonl(1000000); /* An arbitrary big number. */ |
1922 | ots[i].active_count = htonl(classifier_count(&p->tables[i])); | |
1923 | } | |
064af421 | 1924 | |
6c1491fb | 1925 | p->ofproto_class->get_tables(p, ots); |
064af421 | 1926 | |
b0421aa2 | 1927 | ofconn_send_reply(ofconn, msg); |
064af421 BP |
1928 | return 0; |
1929 | } | |
1930 | ||
abaad8cf | 1931 | static void |
63f2140a | 1932 | append_port_stat(struct ofport *port, struct list *replies) |
abaad8cf JP |
1933 | { |
1934 | struct netdev_stats stats; | |
1935 | struct ofp_port_stats *ops; | |
1936 | ||
d295e8e9 JP |
1937 | /* Intentionally ignore return value, since errors will set |
1938 | * 'stats' to all-1s, which is correct for OpenFlow, and | |
abaad8cf JP |
1939 | * netdev_get_stats() will log errors. */ |
1940 | netdev_get_stats(port->netdev, &stats); | |
1941 | ||
63f2140a | 1942 | ops = ofputil_append_stats_reply(sizeof *ops, replies); |
118c4676 | 1943 | ops->port_no = port->opp.port_no; |
abaad8cf | 1944 | memset(ops->pad, 0, sizeof ops->pad); |
c4617b3c BP |
1945 | put_32aligned_be64(&ops->rx_packets, htonll(stats.rx_packets)); |
1946 | put_32aligned_be64(&ops->tx_packets, htonll(stats.tx_packets)); | |
1947 | put_32aligned_be64(&ops->rx_bytes, htonll(stats.rx_bytes)); | |
1948 | put_32aligned_be64(&ops->tx_bytes, htonll(stats.tx_bytes)); | |
1949 | put_32aligned_be64(&ops->rx_dropped, htonll(stats.rx_dropped)); | |
1950 | put_32aligned_be64(&ops->tx_dropped, htonll(stats.tx_dropped)); | |
1951 | put_32aligned_be64(&ops->rx_errors, htonll(stats.rx_errors)); | |
1952 | put_32aligned_be64(&ops->tx_errors, htonll(stats.tx_errors)); | |
1953 | put_32aligned_be64(&ops->rx_frame_err, htonll(stats.rx_frame_errors)); | |
1954 | put_32aligned_be64(&ops->rx_over_err, htonll(stats.rx_over_errors)); | |
1955 | put_32aligned_be64(&ops->rx_crc_err, htonll(stats.rx_crc_errors)); | |
1956 | put_32aligned_be64(&ops->collisions, htonll(stats.collisions)); | |
abaad8cf JP |
1957 | } |
1958 | ||
064af421 | 1959 | static int |
63f2140a BP |
1960 | handle_port_stats_request(struct ofconn *ofconn, |
1961 | const struct ofp_port_stats_request *psr) | |
064af421 | 1962 | { |
64ff1d96 | 1963 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 | 1964 | struct ofport *port; |
63f2140a | 1965 | struct list replies; |
064af421 | 1966 | |
63f2140a | 1967 | ofputil_start_stats_reply(&psr->osm, &replies); |
abaad8cf | 1968 | if (psr->port_no != htons(OFPP_NONE)) { |
abe529af | 1969 | port = ofproto_get_port(p, ntohs(psr->port_no)); |
abaad8cf | 1970 | if (port) { |
63f2140a | 1971 | append_port_stat(port, &replies); |
abaad8cf JP |
1972 | } |
1973 | } else { | |
4e8e4213 | 1974 | HMAP_FOR_EACH (port, hmap_node, &p->ports) { |
63f2140a | 1975 | append_port_stat(port, &replies); |
abaad8cf | 1976 | } |
064af421 BP |
1977 | } |
1978 | ||
63f2140a | 1979 | ofconn_send_replies(ofconn, &replies); |
064af421 BP |
1980 | return 0; |
1981 | } | |
1982 | ||
c6ebb8fb | 1983 | static void |
588cd7b5 | 1984 | calc_flow_duration__(long long int start, uint32_t *sec, uint32_t *nsec) |
c6ebb8fb BP |
1985 | { |
1986 | long long int msecs = time_msec() - start; | |
588cd7b5 BP |
1987 | *sec = msecs / 1000; |
1988 | *nsec = (msecs % 1000) * (1000 * 1000); | |
1989 | } | |
1990 | ||
48266274 BP |
1991 | /* Checks whether 'table_id' is 0xff or a valid table ID in 'ofproto'. Returns |
1992 | * 0 if 'table_id' is OK, otherwise an OpenFlow error code. */ | |
1993 | static int | |
1994 | check_table_id(const struct ofproto *ofproto, uint8_t table_id) | |
1995 | { | |
1996 | return (table_id == 0xff || table_id < ofproto->n_tables | |
1997 | ? 0 | |
1998 | : ofp_mkerr_nicira(OFPET_BAD_REQUEST, NXBRC_BAD_TABLE_ID)); | |
1999 | ||
2000 | } | |
2001 | ||
6c1491fb BP |
2002 | static struct classifier * |
2003 | first_matching_table(struct ofproto *ofproto, uint8_t table_id) | |
064af421 | 2004 | { |
6c1491fb BP |
2005 | if (table_id == 0xff) { |
2006 | return &ofproto->tables[0]; | |
2007 | } else if (table_id < ofproto->n_tables) { | |
2008 | return &ofproto->tables[table_id]; | |
a02e5331 | 2009 | } else { |
6c1491fb | 2010 | return NULL; |
a02e5331 | 2011 | } |
064af421 BP |
2012 | } |
2013 | ||
6c1491fb BP |
2014 | static struct classifier * |
2015 | next_matching_table(struct ofproto *ofproto, | |
2016 | struct classifier *cls, uint8_t table_id) | |
2017 | { | |
2018 | return (table_id == 0xff && cls != &ofproto->tables[ofproto->n_tables - 1] | |
2019 | ? cls + 1 | |
2020 | : NULL); | |
2021 | } | |
2022 | ||
2023 | /* Assigns CLS to each classifier table, in turn, that matches TABLE_ID in | |
2024 | * OFPROTO: | |
2025 | * | |
2026 | * - If TABLE_ID is 0xff, this iterates over every classifier table in | |
2027 | * OFPROTO. | |
2028 | * | |
2029 | * - If TABLE_ID is the number of a table in OFPROTO, then the loop iterates | |
2030 | * only once, for that table. | |
2031 | * | |
48266274 BP |
2032 | * - Otherwise, TABLE_ID isn't valid for OFPROTO, so the loop won't be |
2033 | * entered at all. (Perhaps you should have validated TABLE_ID with | |
2034 | * check_table_id().) | |
6c1491fb BP |
2035 | * |
2036 | * All parameters are evaluated multiple times. | |
2037 | */ | |
2038 | #define FOR_EACH_MATCHING_TABLE(CLS, TABLE_ID, OFPROTO) \ | |
2039 | for ((CLS) = first_matching_table(OFPROTO, TABLE_ID); \ | |
2040 | (CLS) != NULL; \ | |
2041 | (CLS) = next_matching_table(OFPROTO, CLS, TABLE_ID)) | |
2042 | ||
9ed18e46 BP |
2043 | /* Searches 'ofproto' for rules in table 'table_id' (or in all tables, if |
2044 | * 'table_id' is 0xff) that match 'match' in the "loose" way required for | |
2045 | * OpenFlow OFPFC_MODIFY and OFPFC_DELETE requests and puts them on list | |
2046 | * 'rules'. | |
2047 | * | |
2048 | * If 'out_port' is anything other than OFPP_NONE, then only rules that output | |
2049 | * to 'out_port' are included. | |
2050 | * | |
2051 | * Hidden rules are always omitted. | |
2052 | * | |
2053 | * Returns 0 on success, otherwise an OpenFlow error code. */ | |
2054 | static int | |
2055 | collect_rules_loose(struct ofproto *ofproto, uint8_t table_id, | |
2056 | const struct cls_rule *match, uint16_t out_port, | |
2057 | struct list *rules) | |
2058 | { | |
2059 | struct classifier *cls; | |
48266274 BP |
2060 | int error; |
2061 | ||
2062 | error = check_table_id(ofproto, table_id); | |
2063 | if (error) { | |
2064 | return error; | |
2065 | } | |
9ed18e46 BP |
2066 | |
2067 | list_init(rules); | |
2068 | FOR_EACH_MATCHING_TABLE (cls, table_id, ofproto) { | |
2069 | struct cls_cursor cursor; | |
2070 | struct rule *rule; | |
2071 | ||
2072 | cls_cursor_init(&cursor, cls, match); | |
2073 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { | |
7ee20df1 BP |
2074 | if (rule->pending) { |
2075 | return OFPROTO_POSTPONE; | |
2076 | } | |
9ed18e46 BP |
2077 | if (!rule_is_hidden(rule) && rule_has_out_port(rule, out_port)) { |
2078 | list_push_back(rules, &rule->ofproto_node); | |
2079 | } | |
2080 | } | |
2081 | } | |
2082 | return 0; | |
2083 | } | |
2084 | ||
2085 | /* Searches 'ofproto' for rules in table 'table_id' (or in all tables, if | |
2086 | * 'table_id' is 0xff) that match 'match' in the "strict" way required for | |
2087 | * OpenFlow OFPFC_MODIFY_STRICT and OFPFC_DELETE_STRICT requests and puts them | |
2088 | * on list 'rules'. | |
2089 | * | |
2090 | * If 'out_port' is anything other than OFPP_NONE, then only rules that output | |
2091 | * to 'out_port' are included. | |
2092 | * | |
2093 | * Hidden rules are always omitted. | |
2094 | * | |
2095 | * Returns 0 on success, otherwise an OpenFlow error code. */ | |
2096 | static int | |
2097 | collect_rules_strict(struct ofproto *ofproto, uint8_t table_id, | |
2098 | const struct cls_rule *match, uint16_t out_port, | |
2099 | struct list *rules) | |
2100 | { | |
2101 | struct classifier *cls; | |
48266274 BP |
2102 | int error; |
2103 | ||
2104 | error = check_table_id(ofproto, table_id); | |
2105 | if (error) { | |
2106 | return error; | |
2107 | } | |
9ed18e46 BP |
2108 | |
2109 | list_init(rules); | |
2110 | FOR_EACH_MATCHING_TABLE (cls, table_id, ofproto) { | |
2111 | struct rule *rule; | |
2112 | ||
2113 | rule = rule_from_cls_rule(classifier_find_rule_exactly(cls, match)); | |
2114 | if (rule) { | |
7ee20df1 BP |
2115 | if (rule->pending) { |
2116 | return OFPROTO_POSTPONE; | |
2117 | } | |
9ed18e46 BP |
2118 | if (!rule_is_hidden(rule) && rule_has_out_port(rule, out_port)) { |
2119 | list_push_back(rules, &rule->ofproto_node); | |
2120 | } | |
2121 | } | |
2122 | } | |
2123 | return 0; | |
2124 | } | |
2125 | ||
064af421 | 2126 | static int |
63f2140a | 2127 | handle_flow_stats_request(struct ofconn *ofconn, |
349adfb2 | 2128 | const struct ofp_stats_msg *osm) |
064af421 | 2129 | { |
64ff1d96 | 2130 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
81d1ea94 | 2131 | struct ofputil_flow_stats_request fsr; |
63f2140a | 2132 | struct list replies; |
9ed18e46 BP |
2133 | struct list rules; |
2134 | struct rule *rule; | |
09246b99 BP |
2135 | int error; |
2136 | ||
349adfb2 | 2137 | error = ofputil_decode_flow_stats_request(&fsr, &osm->header); |
09246b99 BP |
2138 | if (error) { |
2139 | return error; | |
2140 | } | |
2141 | ||
9ed18e46 BP |
2142 | error = collect_rules_loose(ofproto, fsr.table_id, &fsr.match, |
2143 | fsr.out_port, &rules); | |
2144 | if (error) { | |
2145 | return error; | |
2146 | } | |
5ecc9d81 | 2147 | |
9ed18e46 BP |
2148 | ofputil_start_stats_reply(osm, &replies); |
2149 | LIST_FOR_EACH (rule, ofproto_node, &rules) { | |
2150 | struct ofputil_flow_stats fs; | |
2151 | ||
2152 | fs.rule = rule->cr; | |
2153 | fs.cookie = rule->flow_cookie; | |
2154 | fs.table_id = rule->table_id; | |
2155 | calc_flow_duration__(rule->created, &fs.duration_sec, | |
2156 | &fs.duration_nsec); | |
2157 | fs.idle_timeout = rule->idle_timeout; | |
2158 | fs.hard_timeout = rule->hard_timeout; | |
2159 | ofproto->ofproto_class->rule_get_stats(rule, &fs.packet_count, | |
2160 | &fs.byte_count); | |
2161 | fs.actions = rule->actions; | |
2162 | fs.n_actions = rule->n_actions; | |
2163 | ofputil_append_flow_stats_reply(&fs, &replies); | |
3c4486a5 | 2164 | } |
63f2140a | 2165 | ofconn_send_replies(ofconn, &replies); |
5ecc9d81 | 2166 | |
09246b99 BP |
2167 | return 0; |
2168 | } | |
2169 | ||
4f2cad2c | 2170 | static void |
3394b5b6 | 2171 | flow_stats_ds(struct rule *rule, struct ds *results) |
4f2cad2c | 2172 | { |
4f2cad2c | 2173 | uint64_t packet_count, byte_count; |
4f2cad2c | 2174 | |
abe529af BP |
2175 | rule->ofproto->ofproto_class->rule_get_stats(rule, |
2176 | &packet_count, &byte_count); | |
4f2cad2c | 2177 | |
6c1491fb BP |
2178 | if (rule->table_id != 0) { |
2179 | ds_put_format(results, "table_id=%"PRIu8", ", rule->table_id); | |
2180 | } | |
4f2cad2c JP |
2181 | ds_put_format(results, "duration=%llds, ", |
2182 | (time_msec() - rule->created) / 1000); | |
52ae00b3 | 2183 | ds_put_format(results, "priority=%u, ", rule->cr.priority); |
4f2cad2c JP |
2184 | ds_put_format(results, "n_packets=%"PRIu64", ", packet_count); |
2185 | ds_put_format(results, "n_bytes=%"PRIu64", ", byte_count); | |
cb833cf6 | 2186 | cls_rule_format(&rule->cr, results); |
a5df0e72 | 2187 | ds_put_char(results, ','); |
b4b8c781 BP |
2188 | if (rule->n_actions > 0) { |
2189 | ofp_print_actions(results, rule->actions, rule->n_actions); | |
3c8552c1 JP |
2190 | } else { |
2191 | ds_put_cstr(results, "drop"); | |
3dffcf07 | 2192 | } |
4f2cad2c JP |
2193 | ds_put_cstr(results, "\n"); |
2194 | } | |
2195 | ||
d295e8e9 | 2196 | /* Adds a pretty-printed description of all flows to 'results', including |
ee8b231c | 2197 | * hidden flows (e.g., set up by in-band control). */ |
4f2cad2c JP |
2198 | void |
2199 | ofproto_get_all_flows(struct ofproto *p, struct ds *results) | |
2200 | { | |
6c1491fb BP |
2201 | struct classifier *cls; |
2202 | ||
b772ded8 | 2203 | OFPROTO_FOR_EACH_TABLE (cls, p) { |
6c1491fb BP |
2204 | struct cls_cursor cursor; |
2205 | struct rule *rule; | |
064af421 | 2206 | |
6c1491fb BP |
2207 | cls_cursor_init(&cursor, cls, NULL); |
2208 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { | |
2209 | flow_stats_ds(rule, results); | |
2210 | } | |
064af421 | 2211 | } |
064af421 BP |
2212 | } |
2213 | ||
b5827b24 BP |
2214 | /* Obtains the NetFlow engine type and engine ID for 'ofproto' into |
2215 | * '*engine_type' and '*engine_id', respectively. */ | |
2216 | void | |
2217 | ofproto_get_netflow_ids(const struct ofproto *ofproto, | |
2218 | uint8_t *engine_type, uint8_t *engine_id) | |
2219 | { | |
abe529af | 2220 | ofproto->ofproto_class->get_netflow_ids(ofproto, engine_type, engine_id); |
b5827b24 BP |
2221 | } |
2222 | ||
a5610457 EJ |
2223 | /* Checks the fault status of CFM for 'ofp_port' within 'ofproto'. Returns 1 |
2224 | * if CFM is faulted (generally indiciating a connectivity problem), 0 if CFM | |
2225 | * is not faulted, and -1 if CFM is not enabled on 'ofp_port'. */ | |
2226 | int | |
2227 | ofproto_port_get_cfm_fault(const struct ofproto *ofproto, uint16_t ofp_port) | |
2228 | { | |
2229 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
2230 | return (ofport && ofproto->ofproto_class->get_cfm_fault | |
2231 | ? ofproto->ofproto_class->get_cfm_fault(ofport) | |
2232 | : -1); | |
2233 | } | |
2234 | ||
1de11730 EJ |
2235 | /* Gets the MPIDs of the remote maintenance points broadcasting to 'ofp_port' |
2236 | * within 'ofproto'. Populates 'rmps' with an array of MPIDs owned by | |
2237 | * 'ofproto', and 'n_rmps' with the number of MPIDs in 'rmps'. Returns a | |
2238 | * number less than 0 if CFM is not enabled on 'ofp_port'. */ | |
2239 | int | |
2240 | ofproto_port_get_cfm_remote_mpids(const struct ofproto *ofproto, | |
2241 | uint16_t ofp_port, const uint64_t **rmps, | |
2242 | size_t *n_rmps) | |
2243 | { | |
2244 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
2245 | ||
2246 | *rmps = NULL; | |
2247 | *n_rmps = 0; | |
2248 | return (ofport && ofproto->ofproto_class->get_cfm_remote_mpids | |
2249 | ? ofproto->ofproto_class->get_cfm_remote_mpids(ofport, rmps, | |
2250 | n_rmps) | |
2251 | : -1); | |
2252 | } | |
2253 | ||
76c93b22 BP |
2254 | static int |
2255 | handle_aggregate_stats_request(struct ofconn *ofconn, | |
2256 | const struct ofp_stats_msg *osm) | |
27d34fce | 2257 | { |
76c93b22 | 2258 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
81d1ea94 | 2259 | struct ofputil_flow_stats_request request; |
76c93b22 | 2260 | struct ofputil_aggregate_stats stats; |
5e9d0469 | 2261 | bool unknown_packets, unknown_bytes; |
76c93b22 | 2262 | struct ofpbuf *reply; |
9ed18e46 BP |
2263 | struct list rules; |
2264 | struct rule *rule; | |
76c93b22 | 2265 | int error; |
27d34fce | 2266 | |
76c93b22 BP |
2267 | error = ofputil_decode_flow_stats_request(&request, &osm->header); |
2268 | if (error) { | |
2269 | return error; | |
2270 | } | |
5ecc9d81 | 2271 | |
9ed18e46 BP |
2272 | error = collect_rules_loose(ofproto, request.table_id, &request.match, |
2273 | request.out_port, &rules); | |
2274 | if (error) { | |
2275 | return error; | |
2276 | } | |
3c4486a5 | 2277 | |
9ed18e46 | 2278 | memset(&stats, 0, sizeof stats); |
5e9d0469 | 2279 | unknown_packets = unknown_bytes = false; |
9ed18e46 BP |
2280 | LIST_FOR_EACH (rule, ofproto_node, &rules) { |
2281 | uint64_t packet_count; | |
2282 | uint64_t byte_count; | |
5ecc9d81 | 2283 | |
9ed18e46 BP |
2284 | ofproto->ofproto_class->rule_get_stats(rule, &packet_count, |
2285 | &byte_count); | |
5ecc9d81 | 2286 | |
5e9d0469 BP |
2287 | if (packet_count == UINT64_MAX) { |
2288 | unknown_packets = true; | |
2289 | } else { | |
2290 | stats.packet_count += packet_count; | |
2291 | } | |
2292 | ||
2293 | if (byte_count == UINT64_MAX) { | |
2294 | unknown_bytes = true; | |
2295 | } else { | |
2296 | stats.byte_count += byte_count; | |
2297 | } | |
2298 | ||
9ed18e46 | 2299 | stats.flow_count++; |
3c4486a5 | 2300 | } |
5e9d0469 BP |
2301 | if (unknown_packets) { |
2302 | stats.packet_count = UINT64_MAX; | |
2303 | } | |
2304 | if (unknown_bytes) { | |
2305 | stats.byte_count = UINT64_MAX; | |
2306 | } | |
27d34fce | 2307 | |
76c93b22 BP |
2308 | reply = ofputil_encode_aggregate_stats_reply(&stats, osm); |
2309 | ofconn_send_reply(ofconn, reply); | |
09246b99 BP |
2310 | |
2311 | return 0; | |
2312 | } | |
2313 | ||
c1c9c9c4 | 2314 | struct queue_stats_cbdata { |
ca0f572c | 2315 | struct ofport *ofport; |
63f2140a | 2316 | struct list replies; |
c1c9c9c4 BP |
2317 | }; |
2318 | ||
2319 | static void | |
db9220c3 | 2320 | put_queue_stats(struct queue_stats_cbdata *cbdata, uint32_t queue_id, |
c1c9c9c4 BP |
2321 | const struct netdev_queue_stats *stats) |
2322 | { | |
2323 | struct ofp_queue_stats *reply; | |
2324 | ||
63f2140a | 2325 | reply = ofputil_append_stats_reply(sizeof *reply, &cbdata->replies); |
118c4676 | 2326 | reply->port_no = cbdata->ofport->opp.port_no; |
c1c9c9c4 BP |
2327 | memset(reply->pad, 0, sizeof reply->pad); |
2328 | reply->queue_id = htonl(queue_id); | |
c4617b3c BP |
2329 | put_32aligned_be64(&reply->tx_bytes, htonll(stats->tx_bytes)); |
2330 | put_32aligned_be64(&reply->tx_packets, htonll(stats->tx_packets)); | |
2331 | put_32aligned_be64(&reply->tx_errors, htonll(stats->tx_errors)); | |
c1c9c9c4 BP |
2332 | } |
2333 | ||
2334 | static void | |
db9220c3 | 2335 | handle_queue_stats_dump_cb(uint32_t queue_id, |
c1c9c9c4 BP |
2336 | struct netdev_queue_stats *stats, |
2337 | void *cbdata_) | |
2338 | { | |
2339 | struct queue_stats_cbdata *cbdata = cbdata_; | |
2340 | ||
2341 | put_queue_stats(cbdata, queue_id, stats); | |
2342 | } | |
2343 | ||
2344 | static void | |
ca0f572c | 2345 | handle_queue_stats_for_port(struct ofport *port, uint32_t queue_id, |
c1c9c9c4 BP |
2346 | struct queue_stats_cbdata *cbdata) |
2347 | { | |
ca0f572c | 2348 | cbdata->ofport = port; |
c1c9c9c4 BP |
2349 | if (queue_id == OFPQ_ALL) { |
2350 | netdev_dump_queue_stats(port->netdev, | |
2351 | handle_queue_stats_dump_cb, cbdata); | |
2352 | } else { | |
2353 | struct netdev_queue_stats stats; | |
2354 | ||
1ac788f6 BP |
2355 | if (!netdev_get_queue_stats(port->netdev, queue_id, &stats)) { |
2356 | put_queue_stats(cbdata, queue_id, &stats); | |
2357 | } | |
c1c9c9c4 BP |
2358 | } |
2359 | } | |
2360 | ||
2361 | static int | |
63f2140a BP |
2362 | handle_queue_stats_request(struct ofconn *ofconn, |
2363 | const struct ofp_queue_stats_request *qsr) | |
c1c9c9c4 | 2364 | { |
64ff1d96 | 2365 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
c1c9c9c4 BP |
2366 | struct queue_stats_cbdata cbdata; |
2367 | struct ofport *port; | |
2368 | unsigned int port_no; | |
2369 | uint32_t queue_id; | |
2370 | ||
c1c9c9c4 BP |
2371 | COVERAGE_INC(ofproto_queue_req); |
2372 | ||
63f2140a | 2373 | ofputil_start_stats_reply(&qsr->osm, &cbdata.replies); |
c1c9c9c4 BP |
2374 | |
2375 | port_no = ntohs(qsr->port_no); | |
2376 | queue_id = ntohl(qsr->queue_id); | |
2377 | if (port_no == OFPP_ALL) { | |
4e8e4213 | 2378 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
ca0f572c | 2379 | handle_queue_stats_for_port(port, queue_id, &cbdata); |
c1c9c9c4 | 2380 | } |
abe529af BP |
2381 | } else if (port_no < OFPP_MAX) { |
2382 | port = ofproto_get_port(ofproto, port_no); | |
c1c9c9c4 | 2383 | if (port) { |
ca0f572c | 2384 | handle_queue_stats_for_port(port, queue_id, &cbdata); |
c1c9c9c4 BP |
2385 | } |
2386 | } else { | |
63f2140a | 2387 | ofpbuf_list_delete(&cbdata.replies); |
c1c9c9c4 BP |
2388 | return ofp_mkerr(OFPET_QUEUE_OP_FAILED, OFPQOFC_BAD_PORT); |
2389 | } | |
63f2140a | 2390 | ofconn_send_replies(ofconn, &cbdata.replies); |
c1c9c9c4 BP |
2391 | |
2392 | return 0; | |
2393 | } | |
7ee20df1 BP |
2394 | |
2395 | static bool | |
2396 | is_flow_deletion_pending(const struct ofproto *ofproto, | |
2397 | const struct cls_rule *cls_rule, | |
2398 | uint8_t table_id) | |
2399 | { | |
2400 | if (!hmap_is_empty(&ofproto->deletions)) { | |
2401 | struct ofoperation *op; | |
2402 | ||
2403 | HMAP_FOR_EACH_WITH_HASH (op, hmap_node, | |
2404 | cls_rule_hash(cls_rule, table_id), | |
2405 | &ofproto->deletions) { | |
2406 | if (cls_rule_equal(cls_rule, &op->rule->cr)) { | |
2407 | return true; | |
2408 | } | |
2409 | } | |
2410 | } | |
2411 | ||
2412 | return false; | |
2413 | } | |
2414 | ||
79eee1eb BP |
2415 | /* Implements OFPFC_ADD and the cases for OFPFC_MODIFY and OFPFC_MODIFY_STRICT |
2416 | * in which no matching flow already exists in the flow table. | |
2417 | * | |
2418 | * Adds the flow specified by 'ofm', which is followed by 'n_actions' | |
75a75043 BP |
2419 | * ofp_actions, to the ofproto's flow table. Returns 0 on success, an OpenFlow |
2420 | * error code as encoded by ofp_mkerr() on failure, or OFPROTO_POSTPONE if the | |
2421 | * operation cannot be initiated now but may be retried later. | |
79eee1eb BP |
2422 | * |
2423 | * 'ofconn' is used to retrieve the packet buffer specified in ofm->buffer_id, | |
2424 | * if any. */ | |
064af421 | 2425 | static int |
a9a2da38 | 2426 | add_flow(struct ofproto *ofproto, struct ofconn *ofconn, |
1b9d6420 | 2427 | const struct ofputil_flow_mod *fm, const struct ofp_header *request) |
064af421 | 2428 | { |
7ee20df1 BP |
2429 | struct classifier *table; |
2430 | struct ofopgroup *group; | |
2431 | struct rule *victim; | |
064af421 | 2432 | struct rule *rule; |
064af421 BP |
2433 | int error; |
2434 | ||
48266274 BP |
2435 | error = check_table_id(ofproto, fm->table_id); |
2436 | if (error) { | |
2437 | return error; | |
2438 | } | |
2439 | ||
7ee20df1 BP |
2440 | /* Pick table. */ |
2441 | if (fm->table_id == 0xff) { | |
2442 | uint8_t table_id; | |
13521ff5 | 2443 | if (ofproto->ofproto_class->rule_choose_table) { |
7ee20df1 BP |
2444 | error = ofproto->ofproto_class->rule_choose_table(ofproto, &fm->cr, |
2445 | &table_id); | |
2446 | if (error) { | |
2447 | return error; | |
2448 | } | |
2449 | assert(table_id < ofproto->n_tables); | |
2450 | table = &ofproto->tables[table_id]; | |
2451 | } else { | |
2452 | table = &ofproto->tables[0]; | |
2453 | } | |
2454 | } else if (fm->table_id < ofproto->n_tables) { | |
2455 | table = &ofproto->tables[fm->table_id]; | |
2456 | } else { | |
2457 | return ofp_mkerr_nicira(OFPET_FLOW_MOD_FAILED, NXFMFC_BAD_TABLE_ID); | |
064af421 BP |
2458 | } |
2459 | ||
63adcc7d BP |
2460 | /* Check for overlap, if requested. */ |
2461 | if (fm->flags & OFPFF_CHECK_OVERLAP | |
2462 | && classifier_rule_overlaps(table, &fm->cr)) { | |
2463 | return ofp_mkerr(OFPET_FLOW_MOD_FAILED, OFPFMFC_OVERLAP); | |
2464 | } | |
2465 | ||
7ee20df1 BP |
2466 | /* Serialize against pending deletion. */ |
2467 | if (is_flow_deletion_pending(ofproto, &fm->cr, table - ofproto->tables)) { | |
2468 | return OFPROTO_POSTPONE; | |
afe75089 | 2469 | } |
064af421 | 2470 | |
7ee20df1 BP |
2471 | /* Allocate new rule. */ |
2472 | rule = ofproto->ofproto_class->rule_alloc(); | |
2473 | if (!rule) { | |
2474 | VLOG_WARN_RL(&rl, "%s: failed to create rule (%s)", | |
2475 | ofproto->name, strerror(error)); | |
2476 | return ENOMEM; | |
2477 | } | |
2478 | rule->ofproto = ofproto; | |
2479 | rule->cr = fm->cr; | |
2480 | rule->pending = NULL; | |
2481 | rule->flow_cookie = fm->cookie; | |
308881af | 2482 | rule->created = rule->modified = time_msec(); |
7ee20df1 BP |
2483 | rule->idle_timeout = fm->idle_timeout; |
2484 | rule->hard_timeout = fm->hard_timeout; | |
2485 | rule->table_id = table - ofproto->tables; | |
2486 | rule->send_flow_removed = (fm->flags & OFPFF_SEND_FLOW_REM) != 0; | |
2487 | rule->actions = ofputil_actions_clone(fm->actions, fm->n_actions); | |
2488 | rule->n_actions = fm->n_actions; | |
2489 | ||
2490 | /* Insert new rule. */ | |
2491 | victim = rule_from_cls_rule(classifier_replace(table, &rule->cr)); | |
2492 | if (victim && victim->pending) { | |
2493 | error = OFPROTO_POSTPONE; | |
2494 | } else { | |
7024dffe | 2495 | group = ofopgroup_create(ofproto, ofconn, request, fm->buffer_id); |
7ee20df1 BP |
2496 | ofoperation_create(group, rule, OFOPERATION_ADD); |
2497 | rule->pending->victim = victim; | |
2498 | ||
2499 | error = ofproto->ofproto_class->rule_construct(rule); | |
2500 | if (error) { | |
2501 | ofoperation_destroy(rule->pending); | |
2502 | } | |
2503 | ofopgroup_submit(group); | |
064af421 | 2504 | } |
79eee1eb | 2505 | |
7ee20df1 | 2506 | /* Back out if an error occurred. */ |
79eee1eb | 2507 | if (error) { |
7ee20df1 BP |
2508 | if (victim) { |
2509 | classifier_replace(table, &victim->cr); | |
2510 | } else { | |
2511 | classifier_remove(table, &rule->cr); | |
2512 | } | |
2513 | ofproto_rule_destroy__(rule); | |
79eee1eb | 2514 | } |
7ee20df1 | 2515 | return error; |
064af421 | 2516 | } |
79eee1eb BP |
2517 | \f |
2518 | /* OFPFC_MODIFY and OFPFC_MODIFY_STRICT. */ | |
064af421 | 2519 | |
9ed18e46 BP |
2520 | /* Modifies the rules listed in 'rules', changing their actions to match those |
2521 | * in 'fm'. | |
79eee1eb | 2522 | * |
9ed18e46 BP |
2523 | * 'ofconn' is used to retrieve the packet buffer specified in fm->buffer_id, |
2524 | * if any. | |
2525 | * | |
2526 | * Returns 0 on success, otherwise an OpenFlow error code. */ | |
79eee1eb | 2527 | static int |
7024dffe BP |
2528 | modify_flows__(struct ofproto *ofproto, struct ofconn *ofconn, |
2529 | const struct ofputil_flow_mod *fm, | |
7ee20df1 | 2530 | const struct ofp_header *request, struct list *rules) |
79eee1eb | 2531 | { |
7ee20df1 | 2532 | struct ofopgroup *group; |
9ed18e46 | 2533 | struct rule *rule; |
79eee1eb | 2534 | |
7024dffe | 2535 | group = ofopgroup_create(ofproto, ofconn, request, fm->buffer_id); |
9ed18e46 BP |
2536 | LIST_FOR_EACH (rule, ofproto_node, rules) { |
2537 | if (!ofputil_actions_equal(fm->actions, fm->n_actions, | |
2538 | rule->actions, rule->n_actions)) { | |
7ee20df1 BP |
2539 | ofoperation_create(group, rule, OFOPERATION_MODIFY); |
2540 | rule->pending->actions = rule->actions; | |
2541 | rule->pending->n_actions = rule->n_actions; | |
2542 | rule->actions = ofputil_actions_clone(fm->actions, fm->n_actions); | |
2543 | rule->n_actions = fm->n_actions; | |
2544 | rule->ofproto->ofproto_class->rule_modify_actions(rule); | |
308881af BP |
2545 | } else { |
2546 | rule->modified = time_msec(); | |
5ecc9d81 | 2547 | } |
9ed18e46 | 2548 | rule->flow_cookie = fm->cookie; |
5ecc9d81 | 2549 | } |
7ee20df1 | 2550 | ofopgroup_submit(group); |
79eee1eb | 2551 | |
7ee20df1 | 2552 | return 0; |
9ed18e46 BP |
2553 | } |
2554 | ||
2555 | /* Implements OFPFC_MODIFY. Returns 0 on success or an OpenFlow error code as | |
2556 | * encoded by ofp_mkerr() on failure. | |
2557 | * | |
2558 | * 'ofconn' is used to retrieve the packet buffer specified in fm->buffer_id, | |
2559 | * if any. */ | |
2560 | static int | |
7024dffe | 2561 | modify_flows_loose(struct ofproto *ofproto, struct ofconn *ofconn, |
1b9d6420 | 2562 | const struct ofputil_flow_mod *fm, |
7ee20df1 | 2563 | const struct ofp_header *request) |
9ed18e46 | 2564 | { |
9ed18e46 BP |
2565 | struct list rules; |
2566 | int error; | |
2567 | ||
7024dffe BP |
2568 | error = collect_rules_loose(ofproto, fm->table_id, &fm->cr, OFPP_NONE, |
2569 | &rules); | |
9ed18e46 | 2570 | return (error ? error |
7024dffe BP |
2571 | : list_is_empty(&rules) ? add_flow(ofproto, ofconn, fm, request) |
2572 | : modify_flows__(ofproto, ofconn, fm, request, &rules)); | |
79eee1eb BP |
2573 | } |
2574 | ||
2575 | /* Implements OFPFC_MODIFY_STRICT. Returns 0 on success or an OpenFlow error | |
2576 | * code as encoded by ofp_mkerr() on failure. | |
2577 | * | |
9ed18e46 | 2578 | * 'ofconn' is used to retrieve the packet buffer specified in fm->buffer_id, |
79eee1eb BP |
2579 | * if any. */ |
2580 | static int | |
7024dffe | 2581 | modify_flow_strict(struct ofproto *ofproto, struct ofconn *ofconn, |
1b9d6420 | 2582 | const struct ofputil_flow_mod *fm, |
7ee20df1 | 2583 | const struct ofp_header *request) |
79eee1eb | 2584 | { |
9ed18e46 | 2585 | struct list rules; |
6c1491fb BP |
2586 | int error; |
2587 | ||
7024dffe BP |
2588 | error = collect_rules_strict(ofproto, fm->table_id, &fm->cr, OFPP_NONE, |
2589 | &rules); | |
9ed18e46 | 2590 | return (error ? error |
7024dffe BP |
2591 | : list_is_empty(&rules) ? add_flow(ofproto, ofconn, fm, request) |
2592 | : list_is_singleton(&rules) ? modify_flows__(ofproto, ofconn, | |
2593 | fm, request, &rules) | |
9ed18e46 | 2594 | : 0); |
79eee1eb | 2595 | } |
9ed18e46 BP |
2596 | \f |
2597 | /* OFPFC_DELETE implementation. */ | |
79eee1eb | 2598 | |
9ed18e46 BP |
2599 | /* Deletes the rules listed in 'rules'. |
2600 | * | |
2601 | * Returns 0 on success, otherwise an OpenFlow error code. */ | |
064af421 | 2602 | static int |
7024dffe BP |
2603 | delete_flows__(struct ofproto *ofproto, struct ofconn *ofconn, |
2604 | const struct ofp_header *request, struct list *rules) | |
064af421 | 2605 | { |
9ed18e46 | 2606 | struct rule *rule, *next; |
7ee20df1 | 2607 | struct ofopgroup *group; |
79eee1eb | 2608 | |
7024dffe | 2609 | group = ofopgroup_create(ofproto, ofconn, request, UINT32_MAX); |
9ed18e46 BP |
2610 | LIST_FOR_EACH_SAFE (rule, next, ofproto_node, rules) { |
2611 | ofproto_rule_send_removed(rule, OFPRR_DELETE); | |
7ee20df1 BP |
2612 | |
2613 | ofoperation_create(group, rule, OFOPERATION_DELETE); | |
2614 | classifier_remove(&ofproto->tables[rule->table_id], &rule->cr); | |
2615 | rule->ofproto->ofproto_class->rule_destruct(rule); | |
79eee1eb | 2616 | } |
7ee20df1 | 2617 | ofopgroup_submit(group); |
79eee1eb | 2618 | |
9ed18e46 | 2619 | return 0; |
79eee1eb | 2620 | } |
79eee1eb BP |
2621 | |
2622 | /* Implements OFPFC_DELETE. */ | |
9ed18e46 | 2623 | static int |
7024dffe BP |
2624 | delete_flows_loose(struct ofproto *ofproto, struct ofconn *ofconn, |
2625 | const struct ofputil_flow_mod *fm, | |
7ee20df1 | 2626 | const struct ofp_header *request) |
79eee1eb | 2627 | { |
9ed18e46 BP |
2628 | struct list rules; |
2629 | int error; | |
064af421 | 2630 | |
7024dffe | 2631 | error = collect_rules_loose(ofproto, fm->table_id, &fm->cr, fm->out_port, |
9ed18e46 BP |
2632 | &rules); |
2633 | return (error ? error | |
7024dffe BP |
2634 | : !list_is_empty(&rules) ? delete_flows__(ofproto, ofconn, request, |
2635 | &rules) | |
9ed18e46 | 2636 | : 0); |
064af421 BP |
2637 | } |
2638 | ||
79eee1eb | 2639 | /* Implements OFPFC_DELETE_STRICT. */ |
9ed18e46 | 2640 | static int |
7024dffe | 2641 | delete_flow_strict(struct ofproto *ofproto, struct ofconn *ofconn, |
1b9d6420 | 2642 | const struct ofputil_flow_mod *fm, |
7ee20df1 | 2643 | const struct ofp_header *request) |
79eee1eb | 2644 | { |
9ed18e46 BP |
2645 | struct list rules; |
2646 | int error; | |
79eee1eb | 2647 | |
7024dffe | 2648 | error = collect_rules_strict(ofproto, fm->table_id, &fm->cr, fm->out_port, |
9ed18e46 BP |
2649 | &rules); |
2650 | return (error ? error | |
7024dffe BP |
2651 | : list_is_singleton(&rules) ? delete_flows__(ofproto, ofconn, |
2652 | request, &rules) | |
9ed18e46 | 2653 | : 0); |
abe529af BP |
2654 | } |
2655 | ||
2656 | static void | |
2657 | ofproto_rule_send_removed(struct rule *rule, uint8_t reason) | |
2658 | { | |
2659 | struct ofputil_flow_removed fr; | |
2660 | ||
2661 | if (rule_is_hidden(rule) || !rule->send_flow_removed) { | |
2662 | return; | |
2663 | } | |
2664 | ||
2665 | fr.rule = rule->cr; | |
2666 | fr.cookie = rule->flow_cookie; | |
2667 | fr.reason = reason; | |
2668 | calc_flow_duration__(rule->created, &fr.duration_sec, &fr.duration_nsec); | |
2669 | fr.idle_timeout = rule->idle_timeout; | |
2670 | rule->ofproto->ofproto_class->rule_get_stats(rule, &fr.packet_count, | |
2671 | &fr.byte_count); | |
2672 | ||
2673 | connmgr_send_flow_removed(rule->ofproto->connmgr, &fr); | |
2674 | } | |
2675 | ||
2676 | /* Sends an OpenFlow "flow removed" message with the given 'reason' (either | |
2677 | * OFPRR_HARD_TIMEOUT or OFPRR_IDLE_TIMEOUT), and then removes 'rule' from its | |
2678 | * ofproto. | |
2679 | * | |
2680 | * ofproto implementation ->run() functions should use this function to expire | |
2681 | * OpenFlow flows. */ | |
2682 | void | |
2683 | ofproto_rule_expire(struct rule *rule, uint8_t reason) | |
2684 | { | |
7ee20df1 BP |
2685 | struct ofproto *ofproto = rule->ofproto; |
2686 | struct ofopgroup *group; | |
2687 | ||
abe529af | 2688 | assert(reason == OFPRR_HARD_TIMEOUT || reason == OFPRR_IDLE_TIMEOUT); |
7ee20df1 | 2689 | |
abe529af | 2690 | ofproto_rule_send_removed(rule, reason); |
7ee20df1 | 2691 | |
7024dffe | 2692 | group = ofopgroup_create_unattached(ofproto); |
7ee20df1 BP |
2693 | ofoperation_create(group, rule, OFOPERATION_DELETE); |
2694 | classifier_remove(&ofproto->tables[rule->table_id], &rule->cr); | |
2695 | rule->ofproto->ofproto_class->rule_destruct(rule); | |
2696 | ofopgroup_submit(group); | |
79eee1eb BP |
2697 | } |
2698 | \f | |
064af421 | 2699 | static int |
2e4f5fcf | 2700 | handle_flow_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 2701 | { |
a9a2da38 | 2702 | struct ofputil_flow_mod fm; |
064af421 BP |
2703 | int error; |
2704 | ||
76589937 | 2705 | error = reject_slave_controller(ofconn); |
9deba63b BP |
2706 | if (error) { |
2707 | return error; | |
2708 | } | |
3052b0c5 | 2709 | |
00794817 | 2710 | error = ofputil_decode_flow_mod(&fm, oh, |
6c1491fb | 2711 | ofconn_get_flow_mod_table_id(ofconn)); |
064af421 BP |
2712 | if (error) { |
2713 | return error; | |
2714 | } | |
2715 | ||
2e4f5fcf BP |
2716 | /* We do not support the emergency flow cache. It will hopefully get |
2717 | * dropped from OpenFlow in the near future. */ | |
2718 | if (fm.flags & OFPFF_EMERG) { | |
49bdc010 JP |
2719 | /* There isn't a good fit for an error code, so just state that the |
2720 | * flow table is full. */ | |
2721 | return ofp_mkerr(OFPET_FLOW_MOD_FAILED, OFPFMFC_ALL_TABLES_FULL); | |
2722 | } | |
2723 | ||
75a75043 BP |
2724 | return handle_flow_mod__(ofconn_get_ofproto(ofconn), ofconn, &fm, oh); |
2725 | } | |
2726 | ||
2727 | static int | |
2728 | handle_flow_mod__(struct ofproto *ofproto, struct ofconn *ofconn, | |
2729 | const struct ofputil_flow_mod *fm, | |
2730 | const struct ofp_header *oh) | |
2731 | { | |
2732 | if (ofproto->n_pending >= 50) { | |
2733 | assert(!list_is_empty(&ofproto->pending)); | |
2734 | return OFPROTO_POSTPONE; | |
2735 | } | |
2736 | ||
2737 | switch (fm->command) { | |
3052b0c5 | 2738 | case OFPFC_ADD: |
75a75043 | 2739 | return add_flow(ofproto, ofconn, fm, oh); |
3052b0c5 BP |
2740 | |
2741 | case OFPFC_MODIFY: | |
75a75043 | 2742 | return modify_flows_loose(ofproto, ofconn, fm, oh); |
3052b0c5 BP |
2743 | |
2744 | case OFPFC_MODIFY_STRICT: | |
75a75043 | 2745 | return modify_flow_strict(ofproto, ofconn, fm, oh); |
3052b0c5 BP |
2746 | |
2747 | case OFPFC_DELETE: | |
75a75043 | 2748 | return delete_flows_loose(ofproto, ofconn, fm, oh); |
3052b0c5 BP |
2749 | |
2750 | case OFPFC_DELETE_STRICT: | |
75a75043 | 2751 | return delete_flow_strict(ofproto, ofconn, fm, oh); |
3052b0c5 BP |
2752 | |
2753 | default: | |
75a75043 | 2754 | if (fm->command > 0xff) { |
6c1491fb BP |
2755 | VLOG_WARN_RL(&rl, "flow_mod has explicit table_id but " |
2756 | "flow_mod_table_id extension is not enabled"); | |
2757 | } | |
3052b0c5 BP |
2758 | return ofp_mkerr(OFPET_FLOW_MOD_FAILED, OFPFMFC_BAD_COMMAND); |
2759 | } | |
2760 | } | |
2761 | ||
9deba63b | 2762 | static int |
d1e2cf21 | 2763 | handle_role_request(struct ofconn *ofconn, const struct ofp_header *oh) |
9deba63b | 2764 | { |
d1e2cf21 | 2765 | struct nx_role_request *nrr = (struct nx_role_request *) oh; |
9deba63b BP |
2766 | struct nx_role_request *reply; |
2767 | struct ofpbuf *buf; | |
2768 | uint32_t role; | |
2769 | ||
1ce0a5fa | 2770 | if (ofconn_get_type(ofconn) != OFCONN_PRIMARY) { |
9deba63b BP |
2771 | return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_EPERM); |
2772 | } | |
2773 | ||
2774 | role = ntohl(nrr->role); | |
2775 | if (role != NX_ROLE_OTHER && role != NX_ROLE_MASTER | |
2776 | && role != NX_ROLE_SLAVE) { | |
68f36edf | 2777 | return ofp_mkerr_nicira(OFPET_BAD_REQUEST, NXBRC_BAD_ROLE); |
9deba63b BP |
2778 | } |
2779 | ||
7ee20df1 BP |
2780 | if (ofconn_get_role(ofconn) != role |
2781 | && ofconn_has_pending_opgroups(ofconn)) { | |
2782 | return OFPROTO_POSTPONE; | |
2783 | } | |
2784 | ||
1ce0a5fa | 2785 | ofconn_set_role(ofconn, role); |
9deba63b | 2786 | |
d1e2cf21 | 2787 | reply = make_nxmsg_xid(sizeof *reply, NXT_ROLE_REPLY, oh->xid, &buf); |
9deba63b | 2788 | reply->role = htonl(role); |
b0421aa2 | 2789 | ofconn_send_reply(ofconn, buf); |
9deba63b BP |
2790 | |
2791 | return 0; | |
2792 | } | |
2793 | ||
6c1491fb BP |
2794 | static int |
2795 | handle_nxt_flow_mod_table_id(struct ofconn *ofconn, | |
2796 | const struct ofp_header *oh) | |
2797 | { | |
2798 | const struct nxt_flow_mod_table_id *msg | |
2799 | = (const struct nxt_flow_mod_table_id *) oh; | |
2800 | ||
2801 | ofconn_set_flow_mod_table_id(ofconn, msg->set != 0); | |
2802 | return 0; | |
2803 | } | |
2804 | ||
09246b99 | 2805 | static int |
d1e2cf21 | 2806 | handle_nxt_set_flow_format(struct ofconn *ofconn, const struct ofp_header *oh) |
09246b99 | 2807 | { |
d1e2cf21 BP |
2808 | const struct nxt_set_flow_format *msg |
2809 | = (const struct nxt_set_flow_format *) oh; | |
09246b99 | 2810 | uint32_t format; |
09246b99 BP |
2811 | |
2812 | format = ntohl(msg->format); | |
7ee20df1 | 2813 | if (format != NXFF_OPENFLOW10 && format != NXFF_NXM) { |
09246b99 BP |
2814 | return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_EPERM); |
2815 | } | |
7ee20df1 BP |
2816 | |
2817 | if (format != ofconn_get_flow_format(ofconn) | |
2818 | && ofconn_has_pending_opgroups(ofconn)) { | |
2819 | /* Avoid sending async messages in surprising flow format. */ | |
2820 | return OFPROTO_POSTPONE; | |
2821 | } | |
2822 | ||
2823 | ofconn_set_flow_format(ofconn, format); | |
2824 | return 0; | |
09246b99 BP |
2825 | } |
2826 | ||
064af421 | 2827 | static int |
d1e2cf21 | 2828 | handle_barrier_request(struct ofconn *ofconn, const struct ofp_header *oh) |
246e61ea JP |
2829 | { |
2830 | struct ofp_header *ob; | |
2831 | struct ofpbuf *buf; | |
2832 | ||
7ee20df1 BP |
2833 | if (ofconn_has_pending_opgroups(ofconn)) { |
2834 | return OFPROTO_POSTPONE; | |
2835 | } | |
2836 | ||
246e61ea | 2837 | ob = make_openflow_xid(sizeof *ob, OFPT_BARRIER_REPLY, oh->xid, &buf); |
b0421aa2 | 2838 | ofconn_send_reply(ofconn, buf); |
246e61ea JP |
2839 | return 0; |
2840 | } | |
2841 | ||
d1e2cf21 BP |
2842 | static int |
2843 | handle_openflow__(struct ofconn *ofconn, const struct ofpbuf *msg) | |
064af421 | 2844 | { |
d1e2cf21 BP |
2845 | const struct ofp_header *oh = msg->data; |
2846 | const struct ofputil_msg_type *type; | |
064af421 BP |
2847 | int error; |
2848 | ||
d1e2cf21 BP |
2849 | error = ofputil_decode_msg_type(oh, &type); |
2850 | if (error) { | |
2851 | return error; | |
2852 | } | |
064af421 | 2853 | |
d1e2cf21 BP |
2854 | switch (ofputil_msg_type_code(type)) { |
2855 | /* OpenFlow requests. */ | |
2856 | case OFPUTIL_OFPT_ECHO_REQUEST: | |
2857 | return handle_echo_request(ofconn, oh); | |
064af421 | 2858 | |
d1e2cf21 BP |
2859 | case OFPUTIL_OFPT_FEATURES_REQUEST: |
2860 | return handle_features_request(ofconn, oh); | |
064af421 | 2861 | |
d1e2cf21 BP |
2862 | case OFPUTIL_OFPT_GET_CONFIG_REQUEST: |
2863 | return handle_get_config_request(ofconn, oh); | |
064af421 | 2864 | |
d1e2cf21 BP |
2865 | case OFPUTIL_OFPT_SET_CONFIG: |
2866 | return handle_set_config(ofconn, msg->data); | |
064af421 | 2867 | |
d1e2cf21 BP |
2868 | case OFPUTIL_OFPT_PACKET_OUT: |
2869 | return handle_packet_out(ofconn, oh); | |
064af421 | 2870 | |
d1e2cf21 BP |
2871 | case OFPUTIL_OFPT_PORT_MOD: |
2872 | return handle_port_mod(ofconn, oh); | |
064af421 | 2873 | |
d1e2cf21 | 2874 | case OFPUTIL_OFPT_FLOW_MOD: |
2e4f5fcf | 2875 | return handle_flow_mod(ofconn, oh); |
064af421 | 2876 | |
d1e2cf21 BP |
2877 | case OFPUTIL_OFPT_BARRIER_REQUEST: |
2878 | return handle_barrier_request(ofconn, oh); | |
064af421 | 2879 | |
d1e2cf21 BP |
2880 | /* OpenFlow replies. */ |
2881 | case OFPUTIL_OFPT_ECHO_REPLY: | |
2882 | return 0; | |
246e61ea | 2883 | |
d1e2cf21 | 2884 | /* Nicira extension requests. */ |
d1e2cf21 BP |
2885 | case OFPUTIL_NXT_ROLE_REQUEST: |
2886 | return handle_role_request(ofconn, oh); | |
2887 | ||
6c1491fb BP |
2888 | case OFPUTIL_NXT_FLOW_MOD_TABLE_ID: |
2889 | return handle_nxt_flow_mod_table_id(ofconn, oh); | |
d1e2cf21 BP |
2890 | |
2891 | case OFPUTIL_NXT_SET_FLOW_FORMAT: | |
2892 | return handle_nxt_set_flow_format(ofconn, oh); | |
2893 | ||
2894 | case OFPUTIL_NXT_FLOW_MOD: | |
2e4f5fcf | 2895 | return handle_flow_mod(ofconn, oh); |
d1e2cf21 | 2896 | |
349adfb2 | 2897 | /* Statistics requests. */ |
d1e2cf21 | 2898 | case OFPUTIL_OFPST_DESC_REQUEST: |
63f2140a | 2899 | return handle_desc_stats_request(ofconn, msg->data); |
d1e2cf21 BP |
2900 | |
2901 | case OFPUTIL_OFPST_FLOW_REQUEST: | |
349adfb2 | 2902 | case OFPUTIL_NXST_FLOW_REQUEST: |
63f2140a | 2903 | return handle_flow_stats_request(ofconn, msg->data); |
d1e2cf21 BP |
2904 | |
2905 | case OFPUTIL_OFPST_AGGREGATE_REQUEST: | |
76c93b22 | 2906 | case OFPUTIL_NXST_AGGREGATE_REQUEST: |
63f2140a | 2907 | return handle_aggregate_stats_request(ofconn, msg->data); |
d1e2cf21 BP |
2908 | |
2909 | case OFPUTIL_OFPST_TABLE_REQUEST: | |
63f2140a | 2910 | return handle_table_stats_request(ofconn, msg->data); |
d1e2cf21 BP |
2911 | |
2912 | case OFPUTIL_OFPST_PORT_REQUEST: | |
63f2140a | 2913 | return handle_port_stats_request(ofconn, msg->data); |
d1e2cf21 BP |
2914 | |
2915 | case OFPUTIL_OFPST_QUEUE_REQUEST: | |
63f2140a | 2916 | return handle_queue_stats_request(ofconn, msg->data); |
d1e2cf21 | 2917 | |
8f93e93c | 2918 | case OFPUTIL_MSG_INVALID: |
d1e2cf21 BP |
2919 | case OFPUTIL_OFPT_HELLO: |
2920 | case OFPUTIL_OFPT_ERROR: | |
2921 | case OFPUTIL_OFPT_FEATURES_REPLY: | |
2922 | case OFPUTIL_OFPT_GET_CONFIG_REPLY: | |
2923 | case OFPUTIL_OFPT_PACKET_IN: | |
2924 | case OFPUTIL_OFPT_FLOW_REMOVED: | |
2925 | case OFPUTIL_OFPT_PORT_STATUS: | |
2926 | case OFPUTIL_OFPT_BARRIER_REPLY: | |
2927 | case OFPUTIL_OFPT_QUEUE_GET_CONFIG_REQUEST: | |
2928 | case OFPUTIL_OFPT_QUEUE_GET_CONFIG_REPLY: | |
2929 | case OFPUTIL_OFPST_DESC_REPLY: | |
2930 | case OFPUTIL_OFPST_FLOW_REPLY: | |
2931 | case OFPUTIL_OFPST_QUEUE_REPLY: | |
2932 | case OFPUTIL_OFPST_PORT_REPLY: | |
2933 | case OFPUTIL_OFPST_TABLE_REPLY: | |
2934 | case OFPUTIL_OFPST_AGGREGATE_REPLY: | |
d1e2cf21 BP |
2935 | case OFPUTIL_NXT_ROLE_REPLY: |
2936 | case OFPUTIL_NXT_FLOW_REMOVED: | |
2937 | case OFPUTIL_NXST_FLOW_REPLY: | |
2938 | case OFPUTIL_NXST_AGGREGATE_REPLY: | |
064af421 | 2939 | default: |
d1e2cf21 BP |
2940 | if (oh->type == OFPT_STATS_REQUEST || oh->type == OFPT_STATS_REPLY) { |
2941 | return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_BAD_STAT); | |
2942 | } else { | |
2943 | return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_BAD_TYPE); | |
2944 | } | |
064af421 | 2945 | } |
d1e2cf21 | 2946 | } |
064af421 | 2947 | |
7ee20df1 | 2948 | static bool |
d1e2cf21 BP |
2949 | handle_openflow(struct ofconn *ofconn, struct ofpbuf *ofp_msg) |
2950 | { | |
2951 | int error = handle_openflow__(ofconn, ofp_msg); | |
7ee20df1 | 2952 | if (error && error != OFPROTO_POSTPONE) { |
1be5ff75 | 2953 | ofconn_send_error(ofconn, ofp_msg->data, error); |
064af421 | 2954 | } |
d1e2cf21 | 2955 | COVERAGE_INC(ofproto_recv_openflow); |
7ee20df1 BP |
2956 | return error != OFPROTO_POSTPONE; |
2957 | } | |
2958 | \f | |
2959 | /* Asynchronous operations. */ | |
2960 | ||
2961 | /* Creates and returns a new ofopgroup that is not associated with any | |
2962 | * OpenFlow connection. | |
2963 | * | |
2964 | * The caller should add operations to the returned group with | |
2965 | * ofoperation_create() and then submit it with ofopgroup_submit(). */ | |
2966 | static struct ofopgroup * | |
7024dffe | 2967 | ofopgroup_create_unattached(struct ofproto *ofproto) |
7ee20df1 BP |
2968 | { |
2969 | struct ofopgroup *group = xzalloc(sizeof *group); | |
2970 | group->ofproto = ofproto; | |
2971 | list_init(&group->ofproto_node); | |
2972 | list_init(&group->ops); | |
2973 | list_init(&group->ofconn_node); | |
2974 | return group; | |
2975 | } | |
2976 | ||
7024dffe BP |
2977 | /* Creates and returns a new ofopgroup for 'ofproto'. |
2978 | * | |
2979 | * If 'ofconn' is NULL, the new ofopgroup is not associated with any OpenFlow | |
2980 | * connection. The 'request' and 'buffer_id' arguments are ignored. | |
2981 | * | |
2982 | * If 'ofconn' is nonnull, then the new ofopgroup is associated with 'ofconn'. | |
2983 | * If the ofopgroup eventually fails, then the error reply will include | |
2984 | * 'request'. If the ofopgroup eventually succeeds, then the packet with | |
2985 | * buffer id 'buffer_id' on 'ofconn' will be sent by 'ofconn''s ofproto. | |
7ee20df1 BP |
2986 | * |
2987 | * The caller should add operations to the returned group with | |
2988 | * ofoperation_create() and then submit it with ofopgroup_submit(). */ | |
2989 | static struct ofopgroup * | |
7024dffe BP |
2990 | ofopgroup_create(struct ofproto *ofproto, struct ofconn *ofconn, |
2991 | const struct ofp_header *request, uint32_t buffer_id) | |
7ee20df1 | 2992 | { |
7024dffe BP |
2993 | struct ofopgroup *group = ofopgroup_create_unattached(ofproto); |
2994 | if (ofconn) { | |
2995 | size_t request_len = ntohs(request->length); | |
7ee20df1 | 2996 | |
7024dffe | 2997 | assert(ofconn_get_ofproto(ofconn) == ofproto); |
7ee20df1 | 2998 | |
7024dffe BP |
2999 | ofconn_add_opgroup(ofconn, &group->ofconn_node); |
3000 | group->ofconn = ofconn; | |
3001 | group->request = xmemdup(request, MIN(request_len, 64)); | |
3002 | group->buffer_id = buffer_id; | |
3003 | } | |
7ee20df1 BP |
3004 | return group; |
3005 | } | |
3006 | ||
3007 | /* Submits 'group' for processing. | |
3008 | * | |
3009 | * If 'group' contains no operations (e.g. none were ever added, or all of the | |
3010 | * ones that were added completed synchronously), then it is destroyed | |
3011 | * immediately. Otherwise it is added to the ofproto's list of pending | |
3012 | * groups. */ | |
3013 | static void | |
3014 | ofopgroup_submit(struct ofopgroup *group) | |
3015 | { | |
3016 | if (list_is_empty(&group->ops)) { | |
3017 | ofopgroup_destroy(group); | |
3018 | } else { | |
3019 | list_push_back(&group->ofproto->pending, &group->ofproto_node); | |
dd5616b3 | 3020 | group->ofproto->n_pending++; |
7ee20df1 BP |
3021 | } |
3022 | } | |
3023 | ||
3024 | static void | |
3025 | ofopgroup_destroy(struct ofopgroup *group) | |
3026 | { | |
3027 | assert(list_is_empty(&group->ops)); | |
3028 | if (!list_is_empty(&group->ofproto_node)) { | |
dd5616b3 BP |
3029 | assert(group->ofproto->n_pending > 0); |
3030 | group->ofproto->n_pending--; | |
7ee20df1 BP |
3031 | list_remove(&group->ofproto_node); |
3032 | } | |
3033 | if (!list_is_empty(&group->ofconn_node)) { | |
3034 | list_remove(&group->ofconn_node); | |
3035 | if (group->error) { | |
3036 | ofconn_send_error(group->ofconn, group->request, group->error); | |
3037 | } | |
3038 | connmgr_retry(group->ofproto->connmgr); | |
3039 | } | |
3040 | free(group->request); | |
3041 | free(group); | |
3042 | } | |
3043 | ||
3044 | /* Initiates a new operation on 'rule', of the specified 'type', within | |
3045 | * 'group'. Prior to calling, 'rule' must not have any pending operation. */ | |
3046 | static void | |
3047 | ofoperation_create(struct ofopgroup *group, struct rule *rule, | |
3048 | enum ofoperation_type type) | |
3049 | { | |
3050 | struct ofoperation *op; | |
3051 | ||
3052 | assert(!rule->pending); | |
3053 | ||
3054 | op = rule->pending = xzalloc(sizeof *op); | |
3055 | op->group = group; | |
3056 | list_push_back(&group->ops, &op->group_node); | |
3057 | op->rule = rule; | |
3058 | op->type = type; | |
3059 | op->status = -1; | |
3060 | op->flow_cookie = rule->flow_cookie; | |
3061 | ||
3062 | if (type == OFOPERATION_DELETE) { | |
3063 | hmap_insert(&op->group->ofproto->deletions, &op->hmap_node, | |
3064 | cls_rule_hash(&rule->cr, rule->table_id)); | |
3065 | } | |
3066 | } | |
3067 | ||
3068 | static void | |
3069 | ofoperation_destroy(struct ofoperation *op) | |
3070 | { | |
3071 | struct ofopgroup *group = op->group; | |
3072 | ||
3073 | if (op->rule) { | |
3074 | op->rule->pending = NULL; | |
3075 | } | |
3076 | if (op->type == OFOPERATION_DELETE) { | |
3077 | hmap_remove(&group->ofproto->deletions, &op->hmap_node); | |
3078 | } | |
3079 | list_remove(&op->group_node); | |
3080 | free(op->actions); | |
3081 | free(op); | |
3082 | ||
3083 | if (list_is_empty(&group->ops) && !list_is_empty(&group->ofproto_node)) { | |
3084 | ofopgroup_destroy(group); | |
3085 | } | |
3086 | } | |
3087 | ||
3088 | /* Indicates that 'op' completed with status 'error', which is either 0 to | |
3089 | * indicate success or an OpenFlow error code (constructed with | |
3090 | * e.g. ofp_mkerr()). | |
3091 | * | |
a6a62132 BP |
3092 | * If 'error' is 0, indicating success, the operation will be committed |
3093 | * permanently to the flow table. There is one interesting subcase: | |
3094 | * | |
3095 | * - If 'op' is an "add flow" operation that is replacing an existing rule in | |
3096 | * the flow table (the "victim" rule) by a new one, then the caller must | |
3097 | * have uninitialized any derived state in the victim rule, as in step 5 in | |
3098 | * the "Life Cycle" in ofproto/ofproto-provider.h. ofoperation_complete() | |
3099 | * performs steps 6 and 7 for the victim rule, most notably by calling its | |
3100 | * ->rule_dealloc() function. | |
3101 | * | |
3102 | * If 'error' is nonzero, then generally the operation will be rolled back: | |
3103 | * | |
3104 | * - If 'op' is an "add flow" operation, ofproto removes the new rule or | |
3105 | * restores the original rule. The caller must have uninitialized any | |
3106 | * derived state in the new rule, as in step 5 of in the "Life Cycle" in | |
3107 | * ofproto/ofproto-provider.h. ofoperation_complete() performs steps 6 and | |
3108 | * and 7 for the new rule, calling its ->rule_dealloc() function. | |
3109 | * | |
3110 | * - If 'op' is a "modify flow" operation, ofproto restores the original | |
3111 | * actions. | |
3112 | * | |
3113 | * - 'op' must not be a "delete flow" operation. Removing a rule is not | |
3114 | * allowed to fail. It must always succeed. | |
7ee20df1 | 3115 | * |
5bee6e26 JP |
3116 | * Please see the large comment in ofproto/ofproto-provider.h titled |
3117 | * "Asynchronous Operation Support" for more information. */ | |
7ee20df1 BP |
3118 | void |
3119 | ofoperation_complete(struct ofoperation *op, int error) | |
3120 | { | |
3121 | struct ofopgroup *group = op->group; | |
3122 | struct rule *rule = op->rule; | |
52a90c29 BP |
3123 | struct ofproto *ofproto = rule->ofproto; |
3124 | struct classifier *table = &ofproto->tables[rule->table_id]; | |
7ee20df1 BP |
3125 | |
3126 | assert(rule->pending == op); | |
3127 | assert(op->status < 0); | |
3128 | assert(error >= 0); | |
3129 | ||
3130 | if (!error | |
3131 | && !group->error | |
3132 | && op->type != OFOPERATION_DELETE | |
3133 | && group->ofconn | |
3134 | && group->buffer_id != UINT32_MAX | |
3135 | && list_is_singleton(&op->group_node)) { | |
3136 | struct ofpbuf *packet; | |
3137 | uint16_t in_port; | |
3138 | ||
3139 | error = ofconn_pktbuf_retrieve(group->ofconn, group->buffer_id, | |
3140 | &packet, &in_port); | |
3141 | if (packet) { | |
3142 | assert(!error); | |
3143 | error = rule_execute(rule, in_port, packet); | |
3144 | } | |
3145 | } | |
3146 | if (!group->error) { | |
3147 | group->error = error; | |
3148 | } | |
3149 | ||
3150 | switch (op->type) { | |
3151 | case OFOPERATION_ADD: | |
3152 | if (!error) { | |
3153 | if (op->victim) { | |
3154 | ofproto_rule_destroy__(op->victim); | |
3155 | } | |
52a90c29 BP |
3156 | if (!(rule->cr.wc.vlan_tci_mask & htons(VLAN_VID_MASK)) |
3157 | && ofproto->vlan_bitmap) { | |
3158 | uint16_t vid = vlan_tci_to_vid(rule->cr.flow.vlan_tci); | |
3159 | ||
3160 | if (!bitmap_is_set(ofproto->vlan_bitmap, vid)) { | |
3161 | bitmap_set1(ofproto->vlan_bitmap, vid); | |
3162 | ofproto->vlans_changed = true; | |
3163 | } | |
3164 | } | |
7ee20df1 BP |
3165 | } else { |
3166 | if (op->victim) { | |
3167 | classifier_replace(table, &op->victim->cr); | |
3168 | op->victim = NULL; | |
3169 | } else { | |
3170 | classifier_remove(table, &rule->cr); | |
3171 | } | |
3172 | ofproto_rule_destroy__(rule); | |
3173 | } | |
3174 | op->victim = NULL; | |
3175 | break; | |
3176 | ||
3177 | case OFOPERATION_DELETE: | |
3178 | assert(!error); | |
3179 | ofproto_rule_destroy__(rule); | |
3180 | op->rule = NULL; | |
3181 | break; | |
3182 | ||
3183 | case OFOPERATION_MODIFY: | |
308881af BP |
3184 | if (!error) { |
3185 | rule->modified = time_msec(); | |
3186 | } else { | |
7ee20df1 BP |
3187 | free(rule->actions); |
3188 | rule->actions = op->actions; | |
3189 | rule->n_actions = op->n_actions; | |
3190 | op->actions = NULL; | |
3191 | } | |
3192 | break; | |
3193 | ||
3194 | default: | |
3195 | NOT_REACHED(); | |
3196 | } | |
3197 | ofoperation_destroy(op); | |
3198 | } | |
3199 | ||
3200 | struct rule * | |
3201 | ofoperation_get_victim(struct ofoperation *op) | |
3202 | { | |
3203 | assert(op->type == OFOPERATION_ADD); | |
3204 | return op->victim; | |
064af421 BP |
3205 | } |
3206 | \f | |
064af421 | 3207 | static uint64_t |
fa60c019 | 3208 | pick_datapath_id(const struct ofproto *ofproto) |
064af421 | 3209 | { |
fa60c019 | 3210 | const struct ofport *port; |
064af421 | 3211 | |
abe529af | 3212 | port = ofproto_get_port(ofproto, OFPP_LOCAL); |
fa60c019 BP |
3213 | if (port) { |
3214 | uint8_t ea[ETH_ADDR_LEN]; | |
3215 | int error; | |
3216 | ||
3217 | error = netdev_get_etheraddr(port->netdev, ea); | |
064af421 BP |
3218 | if (!error) { |
3219 | return eth_addr_to_uint64(ea); | |
3220 | } | |
3221 | VLOG_WARN("could not get MAC address for %s (%s)", | |
fa60c019 | 3222 | netdev_get_name(port->netdev), strerror(error)); |
064af421 | 3223 | } |
fa60c019 | 3224 | return ofproto->fallback_dpid; |
064af421 BP |
3225 | } |
3226 | ||
3227 | static uint64_t | |
3228 | pick_fallback_dpid(void) | |
3229 | { | |
3230 | uint8_t ea[ETH_ADDR_LEN]; | |
70150daf | 3231 | eth_addr_nicira_random(ea); |
064af421 BP |
3232 | return eth_addr_to_uint64(ea); |
3233 | } | |
3234 | \f | |
abe529af | 3235 | /* unixctl commands. */ |
7aa697dd | 3236 | |
abe529af | 3237 | struct ofproto * |
2ac6bedd | 3238 | ofproto_lookup(const char *name) |
7aa697dd | 3239 | { |
2ac6bedd | 3240 | struct ofproto *ofproto; |
7aa697dd | 3241 | |
2ac6bedd BP |
3242 | HMAP_FOR_EACH_WITH_HASH (ofproto, hmap_node, hash_string(name, 0), |
3243 | &all_ofprotos) { | |
3244 | if (!strcmp(ofproto->name, name)) { | |
3245 | return ofproto; | |
3246 | } | |
7aa697dd | 3247 | } |
2ac6bedd | 3248 | return NULL; |
7aa697dd BP |
3249 | } |
3250 | ||
3251 | static void | |
7aa697dd BP |
3252 | ofproto_unixctl_list(struct unixctl_conn *conn, const char *arg OVS_UNUSED, |
3253 | void *aux OVS_UNUSED) | |
7aa697dd | 3254 | { |
7aa697dd | 3255 | struct ofproto *ofproto; |
7aa697dd | 3256 | struct ds results; |
7aa697dd | 3257 | |
7aa697dd | 3258 | ds_init(&results); |
2ac6bedd BP |
3259 | HMAP_FOR_EACH (ofproto, hmap_node, &all_ofprotos) { |
3260 | ds_put_format(&results, "%s\n", ofproto->name); | |
7aa697dd | 3261 | } |
7aa697dd BP |
3262 | unixctl_command_reply(conn, 200, ds_cstr(&results)); |
3263 | ds_destroy(&results); | |
7aa697dd BP |
3264 | } |
3265 | ||
3266 | static void | |
3267 | ofproto_unixctl_init(void) | |
3268 | { | |
3269 | static bool registered; | |
3270 | if (registered) { | |
3271 | return; | |
3272 | } | |
3273 | registered = true; | |
3274 | ||
7ff2009a | 3275 | unixctl_command_register("ofproto/list", "", ofproto_unixctl_list, NULL); |
064af421 | 3276 | } |
52a90c29 BP |
3277 | \f |
3278 | /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.) | |
3279 | * | |
3280 | * This is deprecated. It is only for compatibility with broken device drivers | |
3281 | * in old versions of Linux that do not properly support VLANs when VLAN | |
3282 | * devices are not used. When broken device drivers are no longer in | |
3283 | * widespread use, we will delete these interfaces. */ | |
3284 | ||
3285 | /* Sets a 1-bit in the 4096-bit 'vlan_bitmap' for each VLAN ID that is matched | |
3286 | * (exactly) by an OpenFlow rule in 'ofproto'. */ | |
3287 | void | |
3288 | ofproto_get_vlan_usage(struct ofproto *ofproto, unsigned long int *vlan_bitmap) | |
3289 | { | |
3290 | const struct classifier *cls; | |
3291 | ||
3292 | free(ofproto->vlan_bitmap); | |
3293 | ofproto->vlan_bitmap = bitmap_allocate(4096); | |
3294 | ofproto->vlans_changed = false; | |
3295 | ||
3296 | OFPROTO_FOR_EACH_TABLE (cls, ofproto) { | |
3297 | const struct cls_table *table; | |
3298 | ||
3299 | HMAP_FOR_EACH (table, hmap_node, &cls->tables) { | |
3300 | if (!(table->wc.vlan_tci_mask & htons(VLAN_VID_MASK))) { | |
3301 | const struct cls_rule *rule; | |
3302 | ||
3303 | HMAP_FOR_EACH (rule, hmap_node, &table->rules) { | |
3304 | uint16_t vid = vlan_tci_to_vid(rule->flow.vlan_tci); | |
3305 | bitmap_set1(vlan_bitmap, vid); | |
3306 | bitmap_set1(ofproto->vlan_bitmap, vid); | |
3307 | } | |
3308 | } | |
3309 | } | |
3310 | } | |
3311 | } | |
3312 | ||
3313 | /* Returns true if new VLANs have come into use by the flow table since the | |
3314 | * last call to ofproto_get_vlan_usage(). | |
3315 | * | |
3316 | * We don't track when old VLANs stop being used. */ | |
3317 | bool | |
3318 | ofproto_has_vlan_usage_changed(const struct ofproto *ofproto) | |
3319 | { | |
3320 | return ofproto->vlans_changed; | |
3321 | } | |
3322 | ||
3323 | /* Configures a VLAN splinter binding between the ports identified by OpenFlow | |
3324 | * port numbers 'vlandev_ofp_port' and 'realdev_ofp_port'. If | |
3325 | * 'realdev_ofp_port' is nonzero, then the VLAN device is enslaved to the real | |
3326 | * device as a VLAN splinter for VLAN ID 'vid'. If 'realdev_ofp_port' is zero, | |
3327 | * then the VLAN device is un-enslaved. */ | |
3328 | int | |
3329 | ofproto_port_set_realdev(struct ofproto *ofproto, uint16_t vlandev_ofp_port, | |
3330 | uint16_t realdev_ofp_port, int vid) | |
3331 | { | |
3332 | struct ofport *ofport; | |
3333 | int error; | |
3334 | ||
3335 | assert(vlandev_ofp_port != realdev_ofp_port); | |
3336 | ||
3337 | ofport = ofproto_get_port(ofproto, vlandev_ofp_port); | |
3338 | if (!ofport) { | |
3339 | VLOG_WARN("%s: cannot set realdev on nonexistent port %"PRIu16, | |
3340 | ofproto->name, vlandev_ofp_port); | |
3341 | return EINVAL; | |
3342 | } | |
3343 | ||
3344 | if (!ofproto->ofproto_class->set_realdev) { | |
3345 | if (!vlandev_ofp_port) { | |
3346 | return 0; | |
3347 | } | |
3348 | VLOG_WARN("%s: vlan splinters not supported", ofproto->name); | |
3349 | return EOPNOTSUPP; | |
3350 | } | |
3351 | ||
3352 | error = ofproto->ofproto_class->set_realdev(ofport, realdev_ofp_port, vid); | |
3353 | if (error) { | |
3354 | VLOG_WARN("%s: setting realdev on port %"PRIu16" (%s) failed (%s)", | |
3355 | ofproto->name, vlandev_ofp_port, | |
3356 | netdev_get_name(ofport->netdev), strerror(error)); | |
3357 | } | |
3358 | return error; | |
3359 | } |