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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 | |
727 | * to 's'. Otherwise, this function registers a new mirror. | |
728 | * | |
729 | * Mirrors affect only the treatment of packets output to the OFPP_NORMAL | |
730 | * port. */ | |
731 | int | |
732 | ofproto_mirror_register(struct ofproto *ofproto, void *aux, | |
733 | const struct ofproto_mirror_settings *s) | |
064af421 | 734 | { |
abe529af BP |
735 | return (ofproto->ofproto_class->mirror_set |
736 | ? ofproto->ofproto_class->mirror_set(ofproto, aux, s) | |
737 | : EOPNOTSUPP); | |
064af421 BP |
738 | } |
739 | ||
abe529af BP |
740 | /* Unregisters the mirror registered on 'ofproto' with auxiliary data 'aux'. |
741 | * If no mirror has been registered, this has no effect. */ | |
742 | int | |
743 | ofproto_mirror_unregister(struct ofproto *ofproto, void *aux) | |
064af421 | 744 | { |
abe529af | 745 | return ofproto_mirror_register(ofproto, aux, NULL); |
064af421 BP |
746 | } |
747 | ||
abe529af BP |
748 | /* Configures the VLANs whose bits are set to 1 in 'flood_vlans' as VLANs on |
749 | * which all packets are flooded, instead of using MAC learning. If | |
750 | * 'flood_vlans' is NULL, then MAC learning applies to all VLANs. | |
751 | * | |
752 | * Flood VLANs affect only the treatment of packets output to the OFPP_NORMAL | |
753 | * port. */ | |
754 | int | |
755 | ofproto_set_flood_vlans(struct ofproto *ofproto, unsigned long *flood_vlans) | |
abdfe474 | 756 | { |
abe529af BP |
757 | return (ofproto->ofproto_class->set_flood_vlans |
758 | ? ofproto->ofproto_class->set_flood_vlans(ofproto, flood_vlans) | |
759 | : EOPNOTSUPP); | |
abdfe474 JP |
760 | } |
761 | ||
abe529af BP |
762 | /* Returns true if 'aux' is a registered bundle that is currently in use as the |
763 | * output for a mirror. */ | |
764 | bool | |
b4affc74 | 765 | ofproto_is_mirror_output_bundle(const struct ofproto *ofproto, void *aux) |
abe529af BP |
766 | { |
767 | return (ofproto->ofproto_class->is_mirror_output_bundle | |
768 | ? ofproto->ofproto_class->is_mirror_output_bundle(ofproto, aux) | |
769 | : false); | |
770 | } | |
771 | \f | |
81e2083f BP |
772 | bool |
773 | ofproto_has_snoops(const struct ofproto *ofproto) | |
774 | { | |
775 | return connmgr_has_snoops(ofproto->connmgr); | |
776 | } | |
777 | ||
064af421 | 778 | void |
81e2083f | 779 | ofproto_get_snoops(const struct ofproto *ofproto, struct sset *snoops) |
064af421 | 780 | { |
19a87e36 | 781 | connmgr_get_snoops(ofproto->connmgr, snoops); |
064af421 BP |
782 | } |
783 | ||
7ee20df1 BP |
784 | static void |
785 | ofproto_flush__(struct ofproto *ofproto) | |
786 | { | |
787 | struct classifier *table; | |
788 | struct ofopgroup *group; | |
789 | ||
790 | if (ofproto->ofproto_class->flush) { | |
791 | ofproto->ofproto_class->flush(ofproto); | |
792 | } | |
793 | ||
7024dffe | 794 | group = ofopgroup_create_unattached(ofproto); |
b772ded8 | 795 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
7ee20df1 BP |
796 | struct rule *rule, *next_rule; |
797 | struct cls_cursor cursor; | |
798 | ||
799 | cls_cursor_init(&cursor, table, NULL); | |
800 | CLS_CURSOR_FOR_EACH_SAFE (rule, next_rule, cr, &cursor) { | |
801 | if (!rule->pending) { | |
802 | ofoperation_create(group, rule, OFOPERATION_DELETE); | |
803 | classifier_remove(table, &rule->cr); | |
804 | ofproto->ofproto_class->rule_destruct(rule); | |
805 | } | |
806 | } | |
807 | } | |
808 | ofopgroup_submit(group); | |
809 | } | |
810 | ||
abe529af BP |
811 | static void |
812 | ofproto_destroy__(struct ofproto *ofproto) | |
813 | { | |
b772ded8 | 814 | struct classifier *table; |
6c1491fb | 815 | |
7ee20df1 | 816 | assert(list_is_empty(&ofproto->pending)); |
dd5616b3 | 817 | assert(!ofproto->n_pending); |
7ee20df1 | 818 | |
abe529af | 819 | connmgr_destroy(ofproto->connmgr); |
fa066f01 | 820 | |
abe529af BP |
821 | hmap_remove(&all_ofprotos, &ofproto->hmap_node); |
822 | free(ofproto->name); | |
955a7127 | 823 | free(ofproto->type); |
abe529af BP |
824 | free(ofproto->mfr_desc); |
825 | free(ofproto->hw_desc); | |
826 | free(ofproto->sw_desc); | |
827 | free(ofproto->serial_desc); | |
828 | free(ofproto->dp_desc); | |
abe529af BP |
829 | hmap_destroy(&ofproto->ports); |
830 | shash_destroy(&ofproto->port_by_name); | |
6c1491fb | 831 | |
b772ded8 BP |
832 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
833 | assert(classifier_is_empty(table)); | |
834 | classifier_destroy(table); | |
6c1491fb BP |
835 | } |
836 | free(ofproto->tables); | |
fa066f01 | 837 | |
7ee20df1 BP |
838 | hmap_destroy(&ofproto->deletions); |
839 | ||
52a90c29 BP |
840 | free(ofproto->vlan_bitmap); |
841 | ||
abe529af BP |
842 | ofproto->ofproto_class->dealloc(ofproto); |
843 | } | |
fa066f01 | 844 | |
064af421 BP |
845 | void |
846 | ofproto_destroy(struct ofproto *p) | |
847 | { | |
ca0f572c | 848 | struct ofport *ofport, *next_ofport; |
064af421 BP |
849 | |
850 | if (!p) { | |
851 | return; | |
852 | } | |
853 | ||
7ee20df1 | 854 | ofproto_flush__(p); |
4e8e4213 | 855 | HMAP_FOR_EACH_SAFE (ofport, next_ofport, hmap_node, &p->ports) { |
abe529af | 856 | ofport_destroy(ofport); |
064af421 | 857 | } |
064af421 | 858 | |
abe529af BP |
859 | p->ofproto_class->destruct(p); |
860 | ofproto_destroy__(p); | |
064af421 BP |
861 | } |
862 | ||
abe529af BP |
863 | /* Destroys the datapath with the respective 'name' and 'type'. With the Linux |
864 | * kernel datapath, for example, this destroys the datapath in the kernel, and | |
865 | * with the netdev-based datapath, it tears down the data structures that | |
866 | * represent the datapath. | |
867 | * | |
868 | * The datapath should not be currently open as an ofproto. */ | |
064af421 | 869 | int |
abe529af | 870 | ofproto_delete(const char *name, const char *type) |
064af421 | 871 | { |
abe529af BP |
872 | const struct ofproto_class *class = ofproto_class_find__(type); |
873 | return (!class ? EAFNOSUPPORT | |
874 | : !class->del ? EACCES | |
875 | : class->del(type, name)); | |
064af421 BP |
876 | } |
877 | ||
e9e28be3 BP |
878 | static void |
879 | process_port_change(struct ofproto *ofproto, int error, char *devname) | |
880 | { | |
881 | if (error == ENOBUFS) { | |
882 | reinit_ports(ofproto); | |
883 | } else if (!error) { | |
884 | update_port(ofproto, devname); | |
885 | free(devname); | |
886 | } | |
887 | } | |
888 | ||
064af421 | 889 | int |
abe529af | 890 | ofproto_run(struct ofproto *p) |
064af421 | 891 | { |
031d8bff | 892 | struct ofport *ofport; |
064af421 BP |
893 | char *devname; |
894 | int error; | |
064af421 | 895 | |
abe529af BP |
896 | error = p->ofproto_class->run(p); |
897 | if (error == ENODEV) { | |
898 | /* Someone destroyed the datapath behind our back. The caller | |
899 | * better destroy us and give up, because we're just going to | |
900 | * spin from here on out. */ | |
901 | static struct vlog_rate_limit rl2 = VLOG_RATE_LIMIT_INIT(1, 5); | |
902 | VLOG_ERR_RL(&rl2, "%s: datapath was destroyed externally", | |
903 | p->name); | |
904 | return ENODEV; | |
149f577a JG |
905 | } |
906 | ||
5bf0e941 BP |
907 | if (p->ofproto_class->port_poll) { |
908 | while ((error = p->ofproto_class->port_poll(p, &devname)) != EAGAIN) { | |
909 | process_port_change(p, error, devname); | |
064af421 | 910 | } |
e9e28be3 | 911 | } |
031d8bff EJ |
912 | |
913 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
914 | unsigned int change_seq = netdev_change_seq(ofport->netdev); | |
915 | if (ofport->change_seq != change_seq) { | |
916 | ofport->change_seq = change_seq; | |
917 | update_port(p, netdev_get_name(ofport->netdev)); | |
918 | } | |
064af421 BP |
919 | } |
920 | ||
7ee20df1 BP |
921 | |
922 | switch (p->state) { | |
923 | case S_OPENFLOW: | |
924 | connmgr_run(p->connmgr, handle_openflow); | |
925 | break; | |
926 | ||
927 | case S_FLUSH: | |
928 | connmgr_run(p->connmgr, NULL); | |
929 | ofproto_flush__(p); | |
930 | if (list_is_empty(&p->pending) && hmap_is_empty(&p->deletions)) { | |
931 | connmgr_flushed(p->connmgr); | |
932 | p->state = S_OPENFLOW; | |
933 | } | |
934 | break; | |
935 | ||
936 | default: | |
937 | NOT_REACHED(); | |
938 | } | |
064af421 | 939 | |
064af421 BP |
940 | return 0; |
941 | } | |
942 | ||
943 | void | |
944 | ofproto_wait(struct ofproto *p) | |
945 | { | |
031d8bff EJ |
946 | struct ofport *ofport; |
947 | ||
abe529af | 948 | p->ofproto_class->wait(p); |
5bf0e941 BP |
949 | if (p->ofproto_class->port_poll_wait) { |
950 | p->ofproto_class->port_poll_wait(p); | |
e7934396 | 951 | } |
031d8bff EJ |
952 | |
953 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
954 | if (ofport->change_seq != netdev_change_seq(ofport->netdev)) { | |
955 | poll_immediate_wake(); | |
956 | } | |
957 | } | |
7ee20df1 BP |
958 | |
959 | switch (p->state) { | |
960 | case S_OPENFLOW: | |
961 | connmgr_wait(p->connmgr, true); | |
962 | break; | |
963 | ||
964 | case S_FLUSH: | |
965 | connmgr_wait(p->connmgr, false); | |
966 | if (list_is_empty(&p->pending) && hmap_is_empty(&p->deletions)) { | |
967 | poll_immediate_wake(); | |
968 | } | |
969 | break; | |
970 | } | |
064af421 BP |
971 | } |
972 | ||
064af421 BP |
973 | bool |
974 | ofproto_is_alive(const struct ofproto *p) | |
975 | { | |
19a87e36 | 976 | return connmgr_has_controllers(p->connmgr); |
064af421 BP |
977 | } |
978 | ||
bffc0589 | 979 | void |
2cdcb898 | 980 | ofproto_get_ofproto_controller_info(const struct ofproto *ofproto, |
bffc0589 AE |
981 | struct shash *info) |
982 | { | |
19a87e36 | 983 | connmgr_get_controller_info(ofproto->connmgr, info); |
bffc0589 AE |
984 | } |
985 | ||
986 | void | |
987 | ofproto_free_ofproto_controller_info(struct shash *info) | |
988 | { | |
72ba2ed3 | 989 | connmgr_free_controller_info(info); |
bffc0589 AE |
990 | } |
991 | ||
b5827b24 BP |
992 | /* Makes a deep copy of 'old' into 'port'. */ |
993 | void | |
994 | ofproto_port_clone(struct ofproto_port *port, const struct ofproto_port *old) | |
995 | { | |
996 | port->name = xstrdup(old->name); | |
997 | port->type = xstrdup(old->type); | |
998 | port->ofp_port = old->ofp_port; | |
999 | } | |
1000 | ||
1001 | /* Frees memory allocated to members of 'ofproto_port'. | |
3a6ccc8c | 1002 | * |
b5827b24 BP |
1003 | * Do not call this function on an ofproto_port obtained from |
1004 | * ofproto_port_dump_next(): that function retains ownership of the data in the | |
1005 | * ofproto_port. */ | |
1006 | void | |
1007 | ofproto_port_destroy(struct ofproto_port *ofproto_port) | |
1008 | { | |
1009 | free(ofproto_port->name); | |
1010 | free(ofproto_port->type); | |
1011 | } | |
1012 | ||
b5827b24 | 1013 | /* Initializes 'dump' to begin dumping the ports in an ofproto. |
3a6ccc8c | 1014 | * |
b5827b24 BP |
1015 | * This function provides no status indication. An error status for the entire |
1016 | * dump operation is provided when it is completed by calling | |
1017 | * ofproto_port_dump_done(). | |
1018 | */ | |
1019 | void | |
1020 | ofproto_port_dump_start(struct ofproto_port_dump *dump, | |
1021 | const struct ofproto *ofproto) | |
1022 | { | |
abe529af BP |
1023 | dump->ofproto = ofproto; |
1024 | dump->error = ofproto->ofproto_class->port_dump_start(ofproto, | |
1025 | &dump->state); | |
b5827b24 BP |
1026 | } |
1027 | ||
1028 | /* Attempts to retrieve another port from 'dump', which must have been created | |
1029 | * with ofproto_port_dump_start(). On success, stores a new ofproto_port into | |
1030 | * 'port' and returns true. On failure, returns false. | |
1031 | * | |
1032 | * Failure might indicate an actual error or merely that the last port has been | |
1033 | * dumped. An error status for the entire dump operation is provided when it | |
1034 | * is completed by calling ofproto_port_dump_done(). | |
1035 | * | |
1036 | * The ofproto owns the data stored in 'port'. It will remain valid until at | |
1037 | * least the next time 'dump' is passed to ofproto_port_dump_next() or | |
1038 | * ofproto_port_dump_done(). */ | |
1039 | bool | |
1040 | ofproto_port_dump_next(struct ofproto_port_dump *dump, | |
1041 | struct ofproto_port *port) | |
1042 | { | |
abe529af BP |
1043 | const struct ofproto *ofproto = dump->ofproto; |
1044 | ||
1045 | if (dump->error) { | |
1046 | return false; | |
1047 | } | |
b5827b24 | 1048 | |
abe529af BP |
1049 | dump->error = ofproto->ofproto_class->port_dump_next(ofproto, dump->state, |
1050 | port); | |
1051 | if (dump->error) { | |
1052 | ofproto->ofproto_class->port_dump_done(ofproto, dump->state); | |
1053 | return false; | |
b5827b24 | 1054 | } |
abe529af | 1055 | return true; |
b5827b24 BP |
1056 | } |
1057 | ||
1058 | /* Completes port table dump operation 'dump', which must have been created | |
1059 | * with ofproto_port_dump_start(). Returns 0 if the dump operation was | |
1060 | * error-free, otherwise a positive errno value describing the problem. */ | |
3a6ccc8c | 1061 | int |
b5827b24 | 1062 | ofproto_port_dump_done(struct ofproto_port_dump *dump) |
3a6ccc8c | 1063 | { |
abe529af BP |
1064 | const struct ofproto *ofproto = dump->ofproto; |
1065 | if (!dump->error) { | |
1066 | dump->error = ofproto->ofproto_class->port_dump_done(ofproto, | |
1067 | dump->state); | |
1068 | } | |
1069 | return dump->error == EOF ? 0 : dump->error; | |
b5827b24 BP |
1070 | } |
1071 | ||
1072 | /* Attempts to add 'netdev' as a port on 'ofproto'. If successful, returns 0 | |
892815f5 | 1073 | * and sets '*ofp_portp' to the new port's OpenFlow port number (if 'ofp_portp' |
b5827b24 BP |
1074 | * is non-null). On failure, returns a positive errno value and sets |
1075 | * '*ofp_portp' to OFPP_NONE (if 'ofp_portp' is non-null). */ | |
1076 | int | |
1077 | ofproto_port_add(struct ofproto *ofproto, struct netdev *netdev, | |
1078 | uint16_t *ofp_portp) | |
1079 | { | |
abe529af | 1080 | uint16_t ofp_port; |
3a6ccc8c BP |
1081 | int error; |
1082 | ||
abe529af | 1083 | error = ofproto->ofproto_class->port_add(ofproto, netdev, &ofp_port); |
1fa24dea BP |
1084 | if (!error) { |
1085 | update_port(ofproto, netdev_get_name(netdev)); | |
1086 | } | |
b5827b24 | 1087 | if (ofp_portp) { |
abe529af | 1088 | *ofp_portp = error ? OFPP_NONE : ofp_port; |
3a6ccc8c BP |
1089 | } |
1090 | return error; | |
1091 | } | |
1092 | ||
b5827b24 BP |
1093 | /* Looks up a port named 'devname' in 'ofproto'. On success, returns 0 and |
1094 | * initializes '*port' appropriately; on failure, returns a positive errno | |
1095 | * value. | |
1096 | * | |
abe529af | 1097 | * The caller owns the data in 'ofproto_port' and must free it with |
b5827b24 BP |
1098 | * ofproto_port_destroy() when it is no longer needed. */ |
1099 | int | |
1100 | ofproto_port_query_by_name(const struct ofproto *ofproto, const char *devname, | |
1101 | struct ofproto_port *port) | |
a4e2e1f2 | 1102 | { |
b5827b24 BP |
1103 | int error; |
1104 | ||
abe529af BP |
1105 | error = ofproto->ofproto_class->port_query_by_name(ofproto, devname, port); |
1106 | if (error) { | |
1107 | memset(port, 0, sizeof *port); | |
b5827b24 BP |
1108 | } |
1109 | return error; | |
a4e2e1f2 EJ |
1110 | } |
1111 | ||
b5827b24 | 1112 | /* Deletes port number 'ofp_port' from the datapath for 'ofproto'. |
3a6ccc8c | 1113 | * Returns 0 if successful, otherwise a positive errno. */ |
064af421 | 1114 | int |
b5827b24 | 1115 | ofproto_port_del(struct ofproto *ofproto, uint16_t ofp_port) |
064af421 | 1116 | { |
abe529af | 1117 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1264ec95 | 1118 | const char *name = ofport ? netdev_get_name(ofport->netdev) : "<unknown>"; |
3cf10406 | 1119 | int error; |
cdee00fd | 1120 | |
abe529af | 1121 | error = ofproto->ofproto_class->port_del(ofproto, ofp_port); |
892815f5 | 1122 | if (!error && ofport) { |
1264ec95 BP |
1123 | /* 'name' is the netdev's name and update_port() is going to close the |
1124 | * netdev. Just in case update_port() refers to 'name' after it | |
3a6ccc8c BP |
1125 | * destroys 'ofport', make a copy of it around the update_port() |
1126 | * call. */ | |
1127 | char *devname = xstrdup(name); | |
1128 | update_port(ofproto, devname); | |
1129 | free(devname); | |
3cf10406 BP |
1130 | } |
1131 | return error; | |
064af421 BP |
1132 | } |
1133 | ||
6c1491fb | 1134 | /* Adds a flow to OpenFlow flow table 0 in 'p' that matches 'cls_rule' and |
fa8b054f BP |
1135 | * performs the 'n_actions' actions in 'actions'. The new flow will not |
1136 | * timeout. | |
1137 | * | |
1138 | * If cls_rule->priority is in the range of priorities supported by OpenFlow | |
1139 | * (0...65535, inclusive) then the flow will be visible to OpenFlow | |
1140 | * controllers; otherwise, it will be hidden. | |
1141 | * | |
6c1491fb BP |
1142 | * The caller retains ownership of 'cls_rule' and 'actions'. |
1143 | * | |
1144 | * This is a helper function for in-band control and fail-open. */ | |
064af421 | 1145 | void |
7ee20df1 | 1146 | ofproto_add_flow(struct ofproto *ofproto, const struct cls_rule *cls_rule, |
fa8b054f | 1147 | const union ofp_action *actions, size_t n_actions) |
064af421 | 1148 | { |
7ee20df1 BP |
1149 | const struct rule *rule; |
1150 | ||
1151 | rule = rule_from_cls_rule(classifier_find_rule_exactly( | |
1152 | &ofproto->tables[0], cls_rule)); | |
1153 | if (!rule || !ofputil_actions_equal(rule->actions, rule->n_actions, | |
1154 | actions, n_actions)) { | |
a9a2da38 | 1155 | struct ofputil_flow_mod fm; |
7ee20df1 BP |
1156 | |
1157 | memset(&fm, 0, sizeof fm); | |
1158 | fm.cr = *cls_rule; | |
1159 | fm.buffer_id = UINT32_MAX; | |
1160 | fm.actions = (union ofp_action *) actions; | |
1161 | fm.n_actions = n_actions; | |
1162 | add_flow(ofproto, NULL, &fm, NULL); | |
1163 | } | |
064af421 BP |
1164 | } |
1165 | ||
75a75043 BP |
1166 | /* Executes the flow modification specified in 'fm'. Returns 0 on success, an |
1167 | * OpenFlow error code as encoded by ofp_mkerr() on failure, or | |
1168 | * OFPROTO_POSTPONE if the operation cannot be initiated now but may be retried | |
1169 | * later. | |
1170 | * | |
1171 | * This is a helper function for in-band control and fail-open. */ | |
1172 | int | |
1173 | ofproto_flow_mod(struct ofproto *ofproto, const struct ofputil_flow_mod *fm) | |
1174 | { | |
1175 | return handle_flow_mod__(ofproto, NULL, fm, NULL); | |
1176 | } | |
1177 | ||
6c1491fb BP |
1178 | /* Searches for a rule with matching criteria exactly equal to 'target' in |
1179 | * ofproto's table 0 and, if it finds one, deletes it. | |
1180 | * | |
1181 | * This is a helper function for in-band control and fail-open. */ | |
7ee20df1 | 1182 | bool |
cf3fad8a | 1183 | ofproto_delete_flow(struct ofproto *ofproto, const struct cls_rule *target) |
064af421 BP |
1184 | { |
1185 | struct rule *rule; | |
1186 | ||
6c1491fb BP |
1187 | rule = rule_from_cls_rule(classifier_find_rule_exactly( |
1188 | &ofproto->tables[0], target)); | |
7ee20df1 BP |
1189 | if (!rule) { |
1190 | /* No such rule -> success. */ | |
1191 | return true; | |
1192 | } else if (rule->pending) { | |
1193 | /* An operation on the rule is already pending -> failure. | |
1194 | * Caller must retry later if it's important. */ | |
1195 | return false; | |
1196 | } else { | |
1197 | /* Initiate deletion -> success. */ | |
7024dffe | 1198 | struct ofopgroup *group = ofopgroup_create_unattached(ofproto); |
7ee20df1 BP |
1199 | ofoperation_create(group, rule, OFOPERATION_DELETE); |
1200 | classifier_remove(&ofproto->tables[rule->table_id], &rule->cr); | |
1201 | rule->ofproto->ofproto_class->rule_destruct(rule); | |
1202 | ofopgroup_submit(group); | |
1203 | return true; | |
bcf84111 | 1204 | } |
5ecc9d81 | 1205 | |
142e1f5c BP |
1206 | } |
1207 | ||
7ee20df1 BP |
1208 | /* Starts the process of deleting all of the flows from all of ofproto's flow |
1209 | * tables and then reintroducing the flows required by in-band control and | |
1210 | * fail-open. The process will complete in a later call to ofproto_run(). */ | |
142e1f5c BP |
1211 | void |
1212 | ofproto_flush_flows(struct ofproto *ofproto) | |
1213 | { | |
7ee20df1 BP |
1214 | COVERAGE_INC(ofproto_flush); |
1215 | ofproto->state = S_FLUSH; | |
064af421 BP |
1216 | } |
1217 | \f | |
1218 | static void | |
1219 | reinit_ports(struct ofproto *p) | |
1220 | { | |
abe529af | 1221 | struct ofproto_port_dump dump; |
b3c01ed3 | 1222 | struct sset devnames; |
064af421 | 1223 | struct ofport *ofport; |
abe529af | 1224 | struct ofproto_port ofproto_port; |
b3c01ed3 | 1225 | const char *devname; |
064af421 | 1226 | |
898bf89d JP |
1227 | COVERAGE_INC(ofproto_reinit_ports); |
1228 | ||
b3c01ed3 | 1229 | sset_init(&devnames); |
4e8e4213 | 1230 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { |
1264ec95 | 1231 | sset_add(&devnames, netdev_get_name(ofport->netdev)); |
064af421 | 1232 | } |
abe529af BP |
1233 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { |
1234 | sset_add(&devnames, ofproto_port.name); | |
064af421 | 1235 | } |
064af421 | 1236 | |
b3c01ed3 BP |
1237 | SSET_FOR_EACH (devname, &devnames) { |
1238 | update_port(p, devname); | |
064af421 | 1239 | } |
b3c01ed3 | 1240 | sset_destroy(&devnames); |
064af421 BP |
1241 | } |
1242 | ||
abe529af BP |
1243 | /* Opens and returns a netdev for 'ofproto_port', or a null pointer if the |
1244 | * netdev cannot be opened. On success, also fills in 'opp'. */ | |
b33951b8 | 1245 | static struct netdev * |
abe529af | 1246 | ofport_open(const struct ofproto_port *ofproto_port, struct ofp_phy_port *opp) |
064af421 | 1247 | { |
118c4676 | 1248 | uint32_t curr, advertised, supported, peer; |
064af421 | 1249 | enum netdev_flags flags; |
064af421 | 1250 | struct netdev *netdev; |
064af421 BP |
1251 | int error; |
1252 | ||
18812dff | 1253 | error = netdev_open(ofproto_port->name, ofproto_port->type, &netdev); |
064af421 BP |
1254 | if (error) { |
1255 | VLOG_WARN_RL(&rl, "ignoring port %s (%"PRIu16") because netdev %s " | |
1256 | "cannot be opened (%s)", | |
abe529af BP |
1257 | ofproto_port->name, ofproto_port->ofp_port, |
1258 | ofproto_port->name, strerror(error)); | |
064af421 BP |
1259 | return NULL; |
1260 | } | |
1261 | ||
064af421 | 1262 | netdev_get_flags(netdev, &flags); |
118c4676 | 1263 | netdev_get_features(netdev, &curr, &advertised, &supported, &peer); |
064af421 | 1264 | |
abe529af | 1265 | opp->port_no = htons(ofproto_port->ofp_port); |
b33951b8 | 1266 | netdev_get_etheraddr(netdev, opp->hw_addr); |
abe529af | 1267 | ovs_strzcpy(opp->name, ofproto_port->name, sizeof opp->name); |
118c4676 BP |
1268 | opp->config = flags & NETDEV_UP ? 0 : htonl(OFPPC_PORT_DOWN); |
1269 | opp->state = netdev_get_carrier(netdev) ? 0 : htonl(OFPPS_LINK_DOWN); | |
1270 | opp->curr = htonl(curr); | |
1271 | opp->advertised = htonl(advertised); | |
1272 | opp->supported = htonl(supported); | |
1273 | opp->peer = htonl(peer); | |
1274 | ||
b33951b8 | 1275 | return netdev; |
064af421 BP |
1276 | } |
1277 | ||
b33951b8 BP |
1278 | /* Returns true if most fields of 'a' and 'b' are equal. Differences in name, |
1279 | * port number, and 'config' bits other than OFPPC_PORT_DOWN are | |
1280 | * disregarded. */ | |
1281 | static bool | |
1282 | ofport_equal(const struct ofp_phy_port *a, const struct ofp_phy_port *b) | |
064af421 | 1283 | { |
064af421 | 1284 | BUILD_ASSERT_DECL(sizeof *a == 48); /* Detect ofp_phy_port changes. */ |
b33951b8 | 1285 | return (!memcmp(a->hw_addr, b->hw_addr, sizeof a->hw_addr) |
064af421 | 1286 | && a->state == b->state |
118c4676 | 1287 | && !((a->config ^ b->config) & htonl(OFPPC_PORT_DOWN)) |
064af421 BP |
1288 | && a->curr == b->curr |
1289 | && a->advertised == b->advertised | |
1290 | && a->supported == b->supported | |
1291 | && a->peer == b->peer); | |
1292 | } | |
1293 | ||
b33951b8 BP |
1294 | /* Adds an ofport to 'p' initialized based on the given 'netdev' and 'opp'. |
1295 | * The caller must ensure that 'p' does not have a conflicting ofport (that is, | |
1296 | * one with the same name or port number). */ | |
064af421 | 1297 | static void |
b33951b8 BP |
1298 | ofport_install(struct ofproto *p, |
1299 | struct netdev *netdev, const struct ofp_phy_port *opp) | |
064af421 | 1300 | { |
b33951b8 BP |
1301 | const char *netdev_name = netdev_get_name(netdev); |
1302 | struct ofport *ofport; | |
9197df76 | 1303 | int dev_mtu; |
abe529af | 1304 | int error; |
72b06300 | 1305 | |
b33951b8 | 1306 | /* Create ofport. */ |
abe529af BP |
1307 | ofport = p->ofproto_class->port_alloc(); |
1308 | if (!ofport) { | |
1309 | error = ENOMEM; | |
1310 | goto error; | |
1311 | } | |
0f7d71a5 | 1312 | ofport->ofproto = p; |
b33951b8 | 1313 | ofport->netdev = netdev; |
031d8bff | 1314 | ofport->change_seq = netdev_change_seq(netdev); |
b33951b8 | 1315 | ofport->opp = *opp; |
abe529af | 1316 | ofport->ofp_port = ntohs(opp->port_no); |
b33951b8 BP |
1317 | |
1318 | /* Add port to 'p'. */ | |
abe529af | 1319 | hmap_insert(&p->ports, &ofport->hmap_node, hash_int(ofport->ofp_port, 0)); |
72b06300 | 1320 | shash_add(&p->port_by_name, netdev_name, ofport); |
abe529af | 1321 | |
9197df76 JP |
1322 | if (!netdev_get_mtu(netdev, &dev_mtu)) { |
1323 | set_internal_devs_mtu(p); | |
1324 | ofport->mtu = dev_mtu; | |
1325 | } else { | |
1326 | ofport->mtu = 0; | |
1327 | } | |
1328 | ||
abe529af BP |
1329 | /* Let the ofproto_class initialize its private data. */ |
1330 | error = p->ofproto_class->port_construct(ofport); | |
1331 | if (error) { | |
1332 | goto error; | |
1333 | } | |
1334 | connmgr_send_port_status(p->connmgr, opp, OFPPR_ADD); | |
1335 | return; | |
1336 | ||
1337 | error: | |
1338 | VLOG_WARN_RL(&rl, "%s: could not add port %s (%s)", | |
1339 | p->name, netdev_name, strerror(error)); | |
1340 | if (ofport) { | |
1341 | ofport_destroy__(ofport); | |
1342 | } else { | |
1343 | netdev_close(netdev); | |
72b06300 | 1344 | } |
064af421 BP |
1345 | } |
1346 | ||
b33951b8 | 1347 | /* Removes 'ofport' from 'p' and destroys it. */ |
064af421 | 1348 | static void |
0f7d71a5 | 1349 | ofport_remove(struct ofport *ofport) |
064af421 | 1350 | { |
fa066f01 BP |
1351 | connmgr_send_port_status(ofport->ofproto->connmgr, &ofport->opp, |
1352 | OFPPR_DELETE); | |
abe529af | 1353 | ofport_destroy(ofport); |
b33951b8 BP |
1354 | } |
1355 | ||
1356 | /* If 'ofproto' contains an ofport named 'name', removes it from 'ofproto' and | |
1357 | * destroys it. */ | |
1358 | static void | |
1359 | ofport_remove_with_name(struct ofproto *ofproto, const char *name) | |
1360 | { | |
1361 | struct ofport *port = shash_find_data(&ofproto->port_by_name, name); | |
1362 | if (port) { | |
0f7d71a5 | 1363 | ofport_remove(port); |
b33951b8 BP |
1364 | } |
1365 | } | |
1366 | ||
38775ab5 | 1367 | /* Updates 'port' with new 'opp' description. |
b33951b8 BP |
1368 | * |
1369 | * Does not handle a name or port number change. The caller must implement | |
1370 | * such a change as a delete followed by an add. */ | |
1371 | static void | |
abe529af | 1372 | ofport_modified(struct ofport *port, struct ofp_phy_port *opp) |
b33951b8 BP |
1373 | { |
1374 | memcpy(port->opp.hw_addr, opp->hw_addr, ETH_ADDR_LEN); | |
118c4676 BP |
1375 | port->opp.config = ((port->opp.config & ~htonl(OFPPC_PORT_DOWN)) |
1376 | | (opp->config & htonl(OFPPC_PORT_DOWN))); | |
b33951b8 BP |
1377 | port->opp.state = opp->state; |
1378 | port->opp.curr = opp->curr; | |
1379 | port->opp.advertised = opp->advertised; | |
1380 | port->opp.supported = opp->supported; | |
1381 | port->opp.peer = opp->peer; | |
1382 | ||
abe529af | 1383 | connmgr_send_port_status(port->ofproto->connmgr, &port->opp, OFPPR_MODIFY); |
064af421 BP |
1384 | } |
1385 | ||
5a2dfd47 JP |
1386 | /* Update OpenFlow 'state' in 'port' and notify controller. */ |
1387 | void | |
1388 | ofproto_port_set_state(struct ofport *port, ovs_be32 state) | |
1389 | { | |
1390 | if (port->opp.state != state) { | |
1391 | port->opp.state = state; | |
1392 | connmgr_send_port_status(port->ofproto->connmgr, &port->opp, | |
1393 | OFPPR_MODIFY); | |
1394 | } | |
1395 | } | |
1396 | ||
abe529af BP |
1397 | void |
1398 | ofproto_port_unregister(struct ofproto *ofproto, uint16_t ofp_port) | |
e7934396 | 1399 | { |
abe529af BP |
1400 | struct ofport *port = ofproto_get_port(ofproto, ofp_port); |
1401 | if (port) { | |
52a90c29 BP |
1402 | if (port->ofproto->ofproto_class->set_realdev) { |
1403 | port->ofproto->ofproto_class->set_realdev(port, 0, 0); | |
1404 | } | |
b308140a JP |
1405 | if (port->ofproto->ofproto_class->set_stp_port) { |
1406 | port->ofproto->ofproto_class->set_stp_port(port, NULL); | |
1407 | } | |
abe529af | 1408 | if (port->ofproto->ofproto_class->set_cfm) { |
a5610457 | 1409 | port->ofproto->ofproto_class->set_cfm(port, NULL); |
abe529af BP |
1410 | } |
1411 | if (port->ofproto->ofproto_class->bundle_remove) { | |
1412 | port->ofproto->ofproto_class->bundle_remove(port); | |
e7934396 BP |
1413 | } |
1414 | } | |
1415 | } | |
1416 | ||
1417 | static void | |
abe529af | 1418 | ofport_destroy__(struct ofport *port) |
e7934396 | 1419 | { |
abe529af BP |
1420 | struct ofproto *ofproto = port->ofproto; |
1421 | const char *name = netdev_get_name(port->netdev); | |
fa066f01 | 1422 | |
abe529af BP |
1423 | hmap_remove(&ofproto->ports, &port->hmap_node); |
1424 | shash_delete(&ofproto->port_by_name, | |
1425 | shash_find(&ofproto->port_by_name, name)); | |
fa066f01 | 1426 | |
abe529af BP |
1427 | netdev_close(port->netdev); |
1428 | ofproto->ofproto_class->port_dealloc(port); | |
e7934396 BP |
1429 | } |
1430 | ||
064af421 | 1431 | static void |
abe529af | 1432 | ofport_destroy(struct ofport *port) |
064af421 | 1433 | { |
fa066f01 | 1434 | if (port) { |
abe529af BP |
1435 | port->ofproto->ofproto_class->port_destruct(port); |
1436 | ofport_destroy__(port); | |
1437 | } | |
064af421 BP |
1438 | } |
1439 | ||
abe529af BP |
1440 | struct ofport * |
1441 | ofproto_get_port(const struct ofproto *ofproto, uint16_t ofp_port) | |
ca0f572c BP |
1442 | { |
1443 | struct ofport *port; | |
1444 | ||
4e8e4213 | 1445 | HMAP_FOR_EACH_IN_BUCKET (port, hmap_node, |
abe529af BP |
1446 | hash_int(ofp_port, 0), &ofproto->ports) { |
1447 | if (port->ofp_port == ofp_port) { | |
ca0f572c BP |
1448 | return port; |
1449 | } | |
1450 | } | |
1451 | return NULL; | |
1452 | } | |
1453 | ||
064af421 | 1454 | static void |
b33951b8 | 1455 | update_port(struct ofproto *ofproto, const char *name) |
064af421 | 1456 | { |
abe529af | 1457 | struct ofproto_port ofproto_port; |
b33951b8 BP |
1458 | struct ofp_phy_port opp; |
1459 | struct netdev *netdev; | |
1460 | struct ofport *port; | |
064af421 BP |
1461 | |
1462 | COVERAGE_INC(ofproto_update_port); | |
c874dc6d | 1463 | |
b33951b8 | 1464 | /* Fetch 'name''s location and properties from the datapath. */ |
abe529af BP |
1465 | netdev = (!ofproto_port_query_by_name(ofproto, name, &ofproto_port) |
1466 | ? ofport_open(&ofproto_port, &opp) | |
b33951b8 BP |
1467 | : NULL); |
1468 | if (netdev) { | |
abe529af | 1469 | port = ofproto_get_port(ofproto, ofproto_port.ofp_port); |
b33951b8 | 1470 | if (port && !strcmp(netdev_get_name(port->netdev), name)) { |
e65942a0 | 1471 | struct netdev *old_netdev = port->netdev; |
9197df76 | 1472 | int dev_mtu; |
e65942a0 | 1473 | |
b33951b8 BP |
1474 | /* 'name' hasn't changed location. Any properties changed? */ |
1475 | if (!ofport_equal(&port->opp, &opp)) { | |
abe529af BP |
1476 | ofport_modified(port, &opp); |
1477 | } | |
1478 | ||
9197df76 JP |
1479 | /* If this is a non-internal port and the MTU changed, check |
1480 | * if the datapath's MTU needs to be updated. */ | |
1481 | if (strcmp(netdev_get_type(netdev), "internal") | |
1482 | && !netdev_get_mtu(netdev, &dev_mtu) | |
1483 | && port->mtu != dev_mtu) { | |
1484 | set_internal_devs_mtu(ofproto); | |
1485 | port->mtu = dev_mtu; | |
1486 | } | |
1487 | ||
e65942a0 BP |
1488 | /* Install the newly opened netdev in case it has changed. |
1489 | * Don't close the old netdev yet in case port_modified has to | |
1490 | * remove a retained reference to it.*/ | |
abe529af | 1491 | port->netdev = netdev; |
031d8bff | 1492 | port->change_seq = netdev_change_seq(netdev); |
abe529af BP |
1493 | |
1494 | if (port->ofproto->ofproto_class->port_modified) { | |
1495 | port->ofproto->ofproto_class->port_modified(port); | |
b33951b8 | 1496 | } |
e65942a0 BP |
1497 | |
1498 | netdev_close(old_netdev); | |
b33951b8 BP |
1499 | } else { |
1500 | /* If 'port' is nonnull then its name differs from 'name' and thus | |
1501 | * we should delete it. If we think there's a port named 'name' | |
1502 | * then its port number must be wrong now so delete it too. */ | |
1503 | if (port) { | |
0f7d71a5 | 1504 | ofport_remove(port); |
b33951b8 BP |
1505 | } |
1506 | ofport_remove_with_name(ofproto, name); | |
1507 | ofport_install(ofproto, netdev, &opp); | |
c874dc6d | 1508 | } |
b33951b8 BP |
1509 | } else { |
1510 | /* Any port named 'name' is gone now. */ | |
1511 | ofport_remove_with_name(ofproto, name); | |
c874dc6d | 1512 | } |
abe529af | 1513 | ofproto_port_destroy(&ofproto_port); |
064af421 BP |
1514 | } |
1515 | ||
1516 | static int | |
1517 | init_ports(struct ofproto *p) | |
1518 | { | |
abe529af BP |
1519 | struct ofproto_port_dump dump; |
1520 | struct ofproto_port ofproto_port; | |
1521 | ||
1522 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { | |
1523 | uint16_t ofp_port = ofproto_port.ofp_port; | |
1524 | if (ofproto_get_port(p, ofp_port)) { | |
1525 | VLOG_WARN_RL(&rl, "ignoring duplicate port %"PRIu16" in datapath", | |
1526 | ofp_port); | |
1527 | } else if (shash_find(&p->port_by_name, ofproto_port.name)) { | |
1528 | VLOG_WARN_RL(&rl, "ignoring duplicate device %s in datapath", | |
1529 | ofproto_port.name); | |
1530 | } else { | |
b33951b8 BP |
1531 | struct ofp_phy_port opp; |
1532 | struct netdev *netdev; | |
1533 | ||
abe529af | 1534 | netdev = ofport_open(&ofproto_port, &opp); |
b33951b8 BP |
1535 | if (netdev) { |
1536 | ofport_install(p, netdev, &opp); | |
064af421 BP |
1537 | } |
1538 | } | |
1539 | } | |
b0ec0f27 | 1540 | |
064af421 BP |
1541 | return 0; |
1542 | } | |
9197df76 JP |
1543 | |
1544 | /* Find the minimum MTU of all non-datapath devices attached to 'p'. | |
1545 | * Returns ETH_PAYLOAD_MAX or the minimum of the ports. */ | |
1546 | static int | |
1547 | find_min_mtu(struct ofproto *p) | |
1548 | { | |
1549 | struct ofport *ofport; | |
1550 | int mtu = 0; | |
1551 | ||
1552 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
1553 | struct netdev *netdev = ofport->netdev; | |
1554 | int dev_mtu; | |
1555 | ||
1556 | /* Skip any internal ports, since that's what we're trying to | |
1557 | * set. */ | |
1558 | if (!strcmp(netdev_get_type(netdev), "internal")) { | |
1559 | continue; | |
1560 | } | |
1561 | ||
1562 | if (netdev_get_mtu(netdev, &dev_mtu)) { | |
1563 | continue; | |
1564 | } | |
1565 | if (!mtu || dev_mtu < mtu) { | |
1566 | mtu = dev_mtu; | |
1567 | } | |
1568 | } | |
1569 | ||
1570 | return mtu ? mtu: ETH_PAYLOAD_MAX; | |
1571 | } | |
1572 | ||
1573 | /* Set the MTU of all datapath devices on 'p' to the minimum of the | |
1574 | * non-datapath ports. */ | |
1575 | static void | |
1576 | set_internal_devs_mtu(struct ofproto *p) | |
1577 | { | |
1578 | struct ofport *ofport; | |
1579 | int mtu = find_min_mtu(p); | |
1580 | ||
1581 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
1582 | struct netdev *netdev = ofport->netdev; | |
1583 | ||
1584 | if (!strcmp(netdev_get_type(netdev), "internal")) { | |
1585 | netdev_set_mtu(netdev, mtu); | |
1586 | } | |
1587 | } | |
1588 | } | |
064af421 | 1589 | \f |
064af421 | 1590 | static void |
abe529af | 1591 | ofproto_rule_destroy__(struct rule *rule) |
064af421 BP |
1592 | { |
1593 | free(rule->actions); | |
abe529af | 1594 | rule->ofproto->ofproto_class->rule_dealloc(rule); |
064af421 BP |
1595 | } |
1596 | ||
7ee20df1 BP |
1597 | /* This function allows an ofproto implementation to destroy any rules that |
1598 | * remain when its ->destruct() function is called. The caller must have | |
1599 | * already uninitialized any derived members of 'rule' (step 5 described in the | |
5bee6e26 JP |
1600 | * large comment in ofproto/ofproto-provider.h titled "Life Cycle"). |
1601 | * This function implements steps 6 and 7. | |
7ee20df1 BP |
1602 | * |
1603 | * This function should only be called from an ofproto implementation's | |
1604 | * ->destruct() function. It is not suitable elsewhere. */ | |
abe529af BP |
1605 | void |
1606 | ofproto_rule_destroy(struct rule *rule) | |
064af421 | 1607 | { |
7ee20df1 BP |
1608 | assert(!rule->pending); |
1609 | classifier_remove(&rule->ofproto->tables[rule->table_id], &rule->cr); | |
1610 | ofproto_rule_destroy__(rule); | |
064af421 BP |
1611 | } |
1612 | ||
bcf84111 BP |
1613 | /* Returns true if 'rule' has an OpenFlow OFPAT_OUTPUT or OFPAT_ENQUEUE action |
1614 | * that outputs to 'out_port' (output to OFPP_FLOOD and OFPP_ALL doesn't | |
1615 | * count). */ | |
064af421 | 1616 | static bool |
9ed18e46 | 1617 | rule_has_out_port(const struct rule *rule, uint16_t out_port) |
064af421 BP |
1618 | { |
1619 | const union ofp_action *oa; | |
b4b8c781 | 1620 | size_t left; |
064af421 | 1621 | |
9ed18e46 | 1622 | if (out_port == OFPP_NONE) { |
064af421 BP |
1623 | return true; |
1624 | } | |
b4b8c781 | 1625 | OFPUTIL_ACTION_FOR_EACH_UNSAFE (oa, left, rule->actions, rule->n_actions) { |
9ed18e46 | 1626 | if (action_outputs_to_port(oa, htons(out_port))) { |
064af421 BP |
1627 | return true; |
1628 | } | |
1629 | } | |
1630 | return false; | |
1631 | } | |
1632 | ||
bcf84111 | 1633 | /* Executes the actions indicated by 'rule' on 'packet' and credits 'rule''s |
bcf84111 BP |
1634 | * statistics appropriately. 'packet' must have at least sizeof(struct |
1635 | * ofp_packet_in) bytes of headroom. | |
064af421 | 1636 | * |
bcf84111 BP |
1637 | * 'packet' doesn't necessarily have to match 'rule'. 'rule' will be credited |
1638 | * with statistics for 'packet' either way. | |
1639 | * | |
1640 | * Takes ownership of 'packet'. */ | |
5bf0e941 | 1641 | static int |
abe529af | 1642 | rule_execute(struct rule *rule, uint16_t in_port, struct ofpbuf *packet) |
eedc0097 | 1643 | { |
bcf84111 | 1644 | struct flow flow; |
eedc0097 | 1645 | |
abe529af | 1646 | assert(ofpbuf_headroom(packet) >= sizeof(struct ofp_packet_in)); |
eedc0097 | 1647 | |
abff858b | 1648 | flow_extract(packet, 0, 0, in_port, &flow); |
5bf0e941 | 1649 | return rule->ofproto->ofproto_class->rule_execute(rule, &flow, packet); |
350a665f BP |
1650 | } |
1651 | ||
abe529af BP |
1652 | /* Returns true if 'rule' should be hidden from the controller. |
1653 | * | |
1654 | * Rules with priority higher than UINT16_MAX are set up by ofproto itself | |
1655 | * (e.g. by in-band control) and are intentionally hidden from the | |
1656 | * controller. */ | |
1657 | static bool | |
1658 | rule_is_hidden(const struct rule *rule) | |
b6c9e612 | 1659 | { |
abe529af | 1660 | return rule->cr.priority > UINT16_MAX; |
7b064a79 | 1661 | } |
fa066f01 | 1662 | \f |
064af421 | 1663 | static int |
d1e2cf21 | 1664 | handle_echo_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 1665 | { |
b0421aa2 | 1666 | ofconn_send_reply(ofconn, make_echo_reply(oh)); |
064af421 | 1667 | return 0; |
064af421 BP |
1668 | } |
1669 | ||
064af421 | 1670 | static int |
d1e2cf21 | 1671 | handle_features_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 1672 | { |
64ff1d96 | 1673 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
064af421 BP |
1674 | struct ofp_switch_features *osf; |
1675 | struct ofpbuf *buf; | |
064af421 | 1676 | struct ofport *port; |
6c1491fb BP |
1677 | bool arp_match_ip; |
1678 | uint32_t actions; | |
064af421 | 1679 | |
6c1491fb BP |
1680 | ofproto->ofproto_class->get_features(ofproto, &arp_match_ip, &actions); |
1681 | assert(actions & (1 << OFPAT_OUTPUT)); /* sanity check */ | |
064af421 | 1682 | |
064af421 | 1683 | osf = make_openflow_xid(sizeof *osf, OFPT_FEATURES_REPLY, oh->xid, &buf); |
64ff1d96 | 1684 | osf->datapath_id = htonll(ofproto->datapath_id); |
064af421 | 1685 | osf->n_buffers = htonl(pktbuf_capacity()); |
6c1491fb | 1686 | osf->n_tables = ofproto->n_tables; |
064af421 | 1687 | osf->capabilities = htonl(OFPC_FLOW_STATS | OFPC_TABLE_STATS | |
428d83e6 | 1688 | OFPC_PORT_STATS | OFPC_QUEUE_STATS); |
6c1491fb BP |
1689 | if (arp_match_ip) { |
1690 | osf->capabilities |= htonl(OFPC_ARP_MATCH_IP); | |
1691 | } | |
1692 | osf->actions = htonl(actions); | |
064af421 | 1693 | |
64ff1d96 | 1694 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
9cfcdadf | 1695 | ofpbuf_put(buf, &port->opp, sizeof port->opp); |
064af421 | 1696 | } |
064af421 | 1697 | |
b0421aa2 | 1698 | ofconn_send_reply(ofconn, buf); |
064af421 BP |
1699 | return 0; |
1700 | } | |
064af421 | 1701 | |
064af421 | 1702 | static int |
d1e2cf21 | 1703 | handle_get_config_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 1704 | { |
64ff1d96 | 1705 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
064af421 | 1706 | struct ofp_switch_config *osc; |
7257b535 | 1707 | struct ofpbuf *buf; |
959a2ecd | 1708 | |
064af421 BP |
1709 | /* Send reply. */ |
1710 | osc = make_openflow_xid(sizeof *osc, OFPT_GET_CONFIG_REPLY, oh->xid, &buf); | |
7257b535 | 1711 | osc->flags = htons(ofproto->frag_handling); |
810605a2 | 1712 | osc->miss_send_len = htons(ofconn_get_miss_send_len(ofconn)); |
b0421aa2 | 1713 | ofconn_send_reply(ofconn, buf); |
2d70a31a | 1714 | |
064af421 BP |
1715 | return 0; |
1716 | } | |
064af421 | 1717 | |
064af421 | 1718 | static int |
d1e2cf21 | 1719 | handle_set_config(struct ofconn *ofconn, const struct ofp_switch_config *osc) |
064af421 | 1720 | { |
64ff1d96 | 1721 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
d1e2cf21 | 1722 | uint16_t flags = ntohs(osc->flags); |
2d70a31a | 1723 | |
7257b535 BP |
1724 | if (ofconn_get_type(ofconn) != OFCONN_PRIMARY |
1725 | || ofconn_get_role(ofconn) != NX_ROLE_SLAVE) { | |
1726 | enum ofp_config_flags cur = ofproto->frag_handling; | |
1727 | enum ofp_config_flags next = flags & OFPC_FRAG_MASK; | |
1728 | ||
1729 | assert((cur & OFPC_FRAG_MASK) == cur); | |
1730 | if (cur != next) { | |
1731 | if (ofproto->ofproto_class->set_frag_handling(ofproto, next)) { | |
1732 | ofproto->frag_handling = next; | |
1733 | } else { | |
1734 | VLOG_WARN_RL(&rl, "%s: unsupported fragment handling mode %s", | |
1735 | ofproto->name, | |
1736 | ofputil_frag_handling_to_string(next)); | |
1737 | } | |
064af421 BP |
1738 | } |
1739 | } | |
ebe482fd | 1740 | |
810605a2 | 1741 | ofconn_set_miss_send_len(ofconn, ntohs(osc->miss_send_len)); |
0ad9b732 | 1742 | |
064af421 | 1743 | return 0; |
064af421 BP |
1744 | } |
1745 | ||
9deba63b BP |
1746 | /* Checks whether 'ofconn' is a slave controller. If so, returns an OpenFlow |
1747 | * error message code (composed with ofp_mkerr()) for the caller to propagate | |
76589937 | 1748 | * upward. Otherwise, returns 0. */ |
9deba63b | 1749 | static int |
76589937 | 1750 | reject_slave_controller(const struct ofconn *ofconn) |
9deba63b | 1751 | { |
1ce0a5fa BP |
1752 | if (ofconn_get_type(ofconn) == OFCONN_PRIMARY |
1753 | && ofconn_get_role(ofconn) == NX_ROLE_SLAVE) { | |
9deba63b BP |
1754 | return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_EPERM); |
1755 | } else { | |
1756 | return 0; | |
1757 | } | |
1758 | } | |
1759 | ||
064af421 | 1760 | static int |
d1e2cf21 | 1761 | handle_packet_out(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 1762 | { |
64ff1d96 | 1763 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 BP |
1764 | struct ofp_packet_out *opo; |
1765 | struct ofpbuf payload, *buffer; | |
ac51afaf | 1766 | union ofp_action *ofp_actions; |
ac51afaf | 1767 | struct ofpbuf request; |
ae412e7d | 1768 | struct flow flow; |
ac51afaf | 1769 | size_t n_ofp_actions; |
e1154f71 | 1770 | uint16_t in_port; |
064af421 BP |
1771 | int error; |
1772 | ||
ac51afaf BP |
1773 | COVERAGE_INC(ofproto_packet_out); |
1774 | ||
76589937 | 1775 | error = reject_slave_controller(ofconn); |
9deba63b BP |
1776 | if (error) { |
1777 | return error; | |
1778 | } | |
1779 | ||
ac51afaf | 1780 | /* Get ofp_packet_out. */ |
0bc9407d | 1781 | ofpbuf_use_const(&request, oh, ntohs(oh->length)); |
bbc32a88 | 1782 | opo = ofpbuf_pull(&request, offsetof(struct ofp_packet_out, actions)); |
ac51afaf BP |
1783 | |
1784 | /* Get actions. */ | |
1785 | error = ofputil_pull_actions(&request, ntohs(opo->actions_len), | |
1786 | &ofp_actions, &n_ofp_actions); | |
064af421 BP |
1787 | if (error) { |
1788 | return error; | |
1789 | } | |
064af421 | 1790 | |
ac51afaf | 1791 | /* Get payload. */ |
064af421 | 1792 | if (opo->buffer_id != htonl(UINT32_MAX)) { |
10d0a1d2 | 1793 | error = ofconn_pktbuf_retrieve(ofconn, ntohl(opo->buffer_id), |
109b8459 | 1794 | &buffer, NULL); |
7778bd15 | 1795 | if (error || !buffer) { |
064af421 BP |
1796 | return error; |
1797 | } | |
1798 | payload = *buffer; | |
1799 | } else { | |
ac51afaf | 1800 | payload = request; |
064af421 BP |
1801 | buffer = NULL; |
1802 | } | |
1803 | ||
e1154f71 BP |
1804 | /* Get in_port and partially validate it. |
1805 | * | |
1806 | * We don't know what range of ports the ofproto actually implements, but | |
1807 | * we do know that only certain reserved ports (numbered OFPP_MAX and | |
1808 | * above) are valid. */ | |
1809 | in_port = ntohs(opo->in_port); | |
1810 | if (in_port >= OFPP_MAX && in_port != OFPP_LOCAL && in_port != OFPP_NONE) { | |
1811 | return ofp_mkerr_nicira(OFPET_BAD_REQUEST, NXBRC_BAD_IN_PORT); | |
1812 | } | |
1813 | ||
abe529af | 1814 | /* Send out packet. */ |
e1154f71 | 1815 | flow_extract(&payload, 0, 0, in_port, &flow); |
abe529af BP |
1816 | error = p->ofproto_class->packet_out(p, &payload, &flow, |
1817 | ofp_actions, n_ofp_actions); | |
ac51afaf | 1818 | ofpbuf_delete(buffer); |
abe529af BP |
1819 | |
1820 | return error; | |
064af421 BP |
1821 | } |
1822 | ||
1823 | static void | |
abe529af | 1824 | update_port_config(struct ofport *port, ovs_be32 config, ovs_be32 mask) |
064af421 | 1825 | { |
abe529af BP |
1826 | ovs_be32 old_config = port->opp.config; |
1827 | ||
064af421 | 1828 | mask &= config ^ port->opp.config; |
118c4676 BP |
1829 | if (mask & htonl(OFPPC_PORT_DOWN)) { |
1830 | if (config & htonl(OFPPC_PORT_DOWN)) { | |
064af421 BP |
1831 | netdev_turn_flags_off(port->netdev, NETDEV_UP, true); |
1832 | } else { | |
1833 | netdev_turn_flags_on(port->netdev, NETDEV_UP, true); | |
1834 | } | |
1835 | } | |
abe529af BP |
1836 | |
1837 | port->opp.config ^= mask & (htonl(OFPPC_NO_RECV | OFPPC_NO_RECV_STP | | |
1838 | OFPPC_NO_FLOOD | OFPPC_NO_FWD | | |
1839 | OFPPC_NO_PACKET_IN)); | |
1840 | if (port->opp.config != old_config) { | |
1841 | port->ofproto->ofproto_class->port_reconfigured(port, old_config); | |
064af421 BP |
1842 | } |
1843 | } | |
1844 | ||
1845 | static int | |
d1e2cf21 | 1846 | handle_port_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 1847 | { |
64ff1d96 | 1848 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
d1e2cf21 | 1849 | const struct ofp_port_mod *opm = (const struct ofp_port_mod *) oh; |
064af421 BP |
1850 | struct ofport *port; |
1851 | int error; | |
1852 | ||
76589937 | 1853 | error = reject_slave_controller(ofconn); |
9deba63b BP |
1854 | if (error) { |
1855 | return error; | |
1856 | } | |
064af421 | 1857 | |
abe529af | 1858 | port = ofproto_get_port(p, ntohs(opm->port_no)); |
064af421 BP |
1859 | if (!port) { |
1860 | return ofp_mkerr(OFPET_PORT_MOD_FAILED, OFPPMFC_BAD_PORT); | |
1861 | } else if (memcmp(port->opp.hw_addr, opm->hw_addr, OFP_ETH_ALEN)) { | |
1862 | return ofp_mkerr(OFPET_PORT_MOD_FAILED, OFPPMFC_BAD_HW_ADDR); | |
1863 | } else { | |
abe529af | 1864 | update_port_config(port, opm->config, opm->mask); |
064af421 BP |
1865 | if (opm->advertise) { |
1866 | netdev_set_advertisements(port->netdev, ntohl(opm->advertise)); | |
1867 | } | |
1868 | } | |
1869 | return 0; | |
1870 | } | |
1871 | ||
064af421 | 1872 | static int |
3269c562 | 1873 | handle_desc_stats_request(struct ofconn *ofconn, |
63f2140a | 1874 | const struct ofp_stats_msg *request) |
064af421 | 1875 | { |
64ff1d96 | 1876 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 BP |
1877 | struct ofp_desc_stats *ods; |
1878 | struct ofpbuf *msg; | |
1879 | ||
63f2140a | 1880 | ods = ofputil_make_stats_reply(sizeof *ods, request, &msg); |
5a719c38 JP |
1881 | ovs_strlcpy(ods->mfr_desc, p->mfr_desc, sizeof ods->mfr_desc); |
1882 | ovs_strlcpy(ods->hw_desc, p->hw_desc, sizeof ods->hw_desc); | |
1883 | ovs_strlcpy(ods->sw_desc, p->sw_desc, sizeof ods->sw_desc); | |
1884 | ovs_strlcpy(ods->serial_num, p->serial_desc, sizeof ods->serial_num); | |
1885 | ovs_strlcpy(ods->dp_desc, p->dp_desc, sizeof ods->dp_desc); | |
b0421aa2 | 1886 | ofconn_send_reply(ofconn, msg); |
064af421 BP |
1887 | |
1888 | return 0; | |
1889 | } | |
1890 | ||
064af421 | 1891 | static int |
3269c562 | 1892 | handle_table_stats_request(struct ofconn *ofconn, |
63f2140a | 1893 | const struct ofp_stats_msg *request) |
064af421 | 1894 | { |
64ff1d96 | 1895 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 BP |
1896 | struct ofp_table_stats *ots; |
1897 | struct ofpbuf *msg; | |
6c1491fb | 1898 | size_t i; |
064af421 | 1899 | |
63f2140a | 1900 | ofputil_make_stats_reply(sizeof(struct ofp_stats_msg), request, &msg); |
064af421 | 1901 | |
6c1491fb BP |
1902 | ots = ofpbuf_put_zeros(msg, sizeof *ots * p->n_tables); |
1903 | for (i = 0; i < p->n_tables; i++) { | |
1904 | ots[i].table_id = i; | |
35aa7a21 | 1905 | sprintf(ots[i].name, "table%zu", i); |
00794817 | 1906 | ots[i].wildcards = htonl(OFPFW_ALL); |
6c1491fb BP |
1907 | ots[i].max_entries = htonl(1000000); /* An arbitrary big number. */ |
1908 | ots[i].active_count = htonl(classifier_count(&p->tables[i])); | |
1909 | } | |
064af421 | 1910 | |
6c1491fb | 1911 | p->ofproto_class->get_tables(p, ots); |
064af421 | 1912 | |
b0421aa2 | 1913 | ofconn_send_reply(ofconn, msg); |
064af421 BP |
1914 | return 0; |
1915 | } | |
1916 | ||
abaad8cf | 1917 | static void |
63f2140a | 1918 | append_port_stat(struct ofport *port, struct list *replies) |
abaad8cf JP |
1919 | { |
1920 | struct netdev_stats stats; | |
1921 | struct ofp_port_stats *ops; | |
1922 | ||
d295e8e9 JP |
1923 | /* Intentionally ignore return value, since errors will set |
1924 | * 'stats' to all-1s, which is correct for OpenFlow, and | |
abaad8cf JP |
1925 | * netdev_get_stats() will log errors. */ |
1926 | netdev_get_stats(port->netdev, &stats); | |
1927 | ||
63f2140a | 1928 | ops = ofputil_append_stats_reply(sizeof *ops, replies); |
118c4676 | 1929 | ops->port_no = port->opp.port_no; |
abaad8cf | 1930 | memset(ops->pad, 0, sizeof ops->pad); |
c4617b3c BP |
1931 | put_32aligned_be64(&ops->rx_packets, htonll(stats.rx_packets)); |
1932 | put_32aligned_be64(&ops->tx_packets, htonll(stats.tx_packets)); | |
1933 | put_32aligned_be64(&ops->rx_bytes, htonll(stats.rx_bytes)); | |
1934 | put_32aligned_be64(&ops->tx_bytes, htonll(stats.tx_bytes)); | |
1935 | put_32aligned_be64(&ops->rx_dropped, htonll(stats.rx_dropped)); | |
1936 | put_32aligned_be64(&ops->tx_dropped, htonll(stats.tx_dropped)); | |
1937 | put_32aligned_be64(&ops->rx_errors, htonll(stats.rx_errors)); | |
1938 | put_32aligned_be64(&ops->tx_errors, htonll(stats.tx_errors)); | |
1939 | put_32aligned_be64(&ops->rx_frame_err, htonll(stats.rx_frame_errors)); | |
1940 | put_32aligned_be64(&ops->rx_over_err, htonll(stats.rx_over_errors)); | |
1941 | put_32aligned_be64(&ops->rx_crc_err, htonll(stats.rx_crc_errors)); | |
1942 | put_32aligned_be64(&ops->collisions, htonll(stats.collisions)); | |
abaad8cf JP |
1943 | } |
1944 | ||
064af421 | 1945 | static int |
63f2140a BP |
1946 | handle_port_stats_request(struct ofconn *ofconn, |
1947 | const struct ofp_port_stats_request *psr) | |
064af421 | 1948 | { |
64ff1d96 | 1949 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 | 1950 | struct ofport *port; |
63f2140a | 1951 | struct list replies; |
064af421 | 1952 | |
63f2140a | 1953 | ofputil_start_stats_reply(&psr->osm, &replies); |
abaad8cf | 1954 | if (psr->port_no != htons(OFPP_NONE)) { |
abe529af | 1955 | port = ofproto_get_port(p, ntohs(psr->port_no)); |
abaad8cf | 1956 | if (port) { |
63f2140a | 1957 | append_port_stat(port, &replies); |
abaad8cf JP |
1958 | } |
1959 | } else { | |
4e8e4213 | 1960 | HMAP_FOR_EACH (port, hmap_node, &p->ports) { |
63f2140a | 1961 | append_port_stat(port, &replies); |
abaad8cf | 1962 | } |
064af421 BP |
1963 | } |
1964 | ||
63f2140a | 1965 | ofconn_send_replies(ofconn, &replies); |
064af421 BP |
1966 | return 0; |
1967 | } | |
1968 | ||
c6ebb8fb | 1969 | static void |
588cd7b5 | 1970 | calc_flow_duration__(long long int start, uint32_t *sec, uint32_t *nsec) |
c6ebb8fb BP |
1971 | { |
1972 | long long int msecs = time_msec() - start; | |
588cd7b5 BP |
1973 | *sec = msecs / 1000; |
1974 | *nsec = (msecs % 1000) * (1000 * 1000); | |
1975 | } | |
1976 | ||
48266274 BP |
1977 | /* Checks whether 'table_id' is 0xff or a valid table ID in 'ofproto'. Returns |
1978 | * 0 if 'table_id' is OK, otherwise an OpenFlow error code. */ | |
1979 | static int | |
1980 | check_table_id(const struct ofproto *ofproto, uint8_t table_id) | |
1981 | { | |
1982 | return (table_id == 0xff || table_id < ofproto->n_tables | |
1983 | ? 0 | |
1984 | : ofp_mkerr_nicira(OFPET_BAD_REQUEST, NXBRC_BAD_TABLE_ID)); | |
1985 | ||
1986 | } | |
1987 | ||
6c1491fb BP |
1988 | static struct classifier * |
1989 | first_matching_table(struct ofproto *ofproto, uint8_t table_id) | |
064af421 | 1990 | { |
6c1491fb BP |
1991 | if (table_id == 0xff) { |
1992 | return &ofproto->tables[0]; | |
1993 | } else if (table_id < ofproto->n_tables) { | |
1994 | return &ofproto->tables[table_id]; | |
a02e5331 | 1995 | } else { |
6c1491fb | 1996 | return NULL; |
a02e5331 | 1997 | } |
064af421 BP |
1998 | } |
1999 | ||
6c1491fb BP |
2000 | static struct classifier * |
2001 | next_matching_table(struct ofproto *ofproto, | |
2002 | struct classifier *cls, uint8_t table_id) | |
2003 | { | |
2004 | return (table_id == 0xff && cls != &ofproto->tables[ofproto->n_tables - 1] | |
2005 | ? cls + 1 | |
2006 | : NULL); | |
2007 | } | |
2008 | ||
2009 | /* Assigns CLS to each classifier table, in turn, that matches TABLE_ID in | |
2010 | * OFPROTO: | |
2011 | * | |
2012 | * - If TABLE_ID is 0xff, this iterates over every classifier table in | |
2013 | * OFPROTO. | |
2014 | * | |
2015 | * - If TABLE_ID is the number of a table in OFPROTO, then the loop iterates | |
2016 | * only once, for that table. | |
2017 | * | |
48266274 BP |
2018 | * - Otherwise, TABLE_ID isn't valid for OFPROTO, so the loop won't be |
2019 | * entered at all. (Perhaps you should have validated TABLE_ID with | |
2020 | * check_table_id().) | |
6c1491fb BP |
2021 | * |
2022 | * All parameters are evaluated multiple times. | |
2023 | */ | |
2024 | #define FOR_EACH_MATCHING_TABLE(CLS, TABLE_ID, OFPROTO) \ | |
2025 | for ((CLS) = first_matching_table(OFPROTO, TABLE_ID); \ | |
2026 | (CLS) != NULL; \ | |
2027 | (CLS) = next_matching_table(OFPROTO, CLS, TABLE_ID)) | |
2028 | ||
9ed18e46 BP |
2029 | /* Searches 'ofproto' for rules in table 'table_id' (or in all tables, if |
2030 | * 'table_id' is 0xff) that match 'match' in the "loose" way required for | |
2031 | * OpenFlow OFPFC_MODIFY and OFPFC_DELETE requests and puts them on list | |
2032 | * 'rules'. | |
2033 | * | |
2034 | * If 'out_port' is anything other than OFPP_NONE, then only rules that output | |
2035 | * to 'out_port' are included. | |
2036 | * | |
2037 | * Hidden rules are always omitted. | |
2038 | * | |
2039 | * Returns 0 on success, otherwise an OpenFlow error code. */ | |
2040 | static int | |
2041 | collect_rules_loose(struct ofproto *ofproto, uint8_t table_id, | |
2042 | const struct cls_rule *match, uint16_t out_port, | |
2043 | struct list *rules) | |
2044 | { | |
2045 | struct classifier *cls; | |
48266274 BP |
2046 | int error; |
2047 | ||
2048 | error = check_table_id(ofproto, table_id); | |
2049 | if (error) { | |
2050 | return error; | |
2051 | } | |
9ed18e46 BP |
2052 | |
2053 | list_init(rules); | |
2054 | FOR_EACH_MATCHING_TABLE (cls, table_id, ofproto) { | |
2055 | struct cls_cursor cursor; | |
2056 | struct rule *rule; | |
2057 | ||
2058 | cls_cursor_init(&cursor, cls, match); | |
2059 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { | |
7ee20df1 BP |
2060 | if (rule->pending) { |
2061 | return OFPROTO_POSTPONE; | |
2062 | } | |
9ed18e46 BP |
2063 | if (!rule_is_hidden(rule) && rule_has_out_port(rule, out_port)) { |
2064 | list_push_back(rules, &rule->ofproto_node); | |
2065 | } | |
2066 | } | |
2067 | } | |
2068 | return 0; | |
2069 | } | |
2070 | ||
2071 | /* Searches 'ofproto' for rules in table 'table_id' (or in all tables, if | |
2072 | * 'table_id' is 0xff) that match 'match' in the "strict" way required for | |
2073 | * OpenFlow OFPFC_MODIFY_STRICT and OFPFC_DELETE_STRICT requests and puts them | |
2074 | * on list 'rules'. | |
2075 | * | |
2076 | * If 'out_port' is anything other than OFPP_NONE, then only rules that output | |
2077 | * to 'out_port' are included. | |
2078 | * | |
2079 | * Hidden rules are always omitted. | |
2080 | * | |
2081 | * Returns 0 on success, otherwise an OpenFlow error code. */ | |
2082 | static int | |
2083 | collect_rules_strict(struct ofproto *ofproto, uint8_t table_id, | |
2084 | const struct cls_rule *match, uint16_t out_port, | |
2085 | struct list *rules) | |
2086 | { | |
2087 | struct classifier *cls; | |
48266274 BP |
2088 | int error; |
2089 | ||
2090 | error = check_table_id(ofproto, table_id); | |
2091 | if (error) { | |
2092 | return error; | |
2093 | } | |
9ed18e46 BP |
2094 | |
2095 | list_init(rules); | |
2096 | FOR_EACH_MATCHING_TABLE (cls, table_id, ofproto) { | |
2097 | struct rule *rule; | |
2098 | ||
2099 | rule = rule_from_cls_rule(classifier_find_rule_exactly(cls, match)); | |
2100 | if (rule) { | |
7ee20df1 BP |
2101 | if (rule->pending) { |
2102 | return OFPROTO_POSTPONE; | |
2103 | } | |
9ed18e46 BP |
2104 | if (!rule_is_hidden(rule) && rule_has_out_port(rule, out_port)) { |
2105 | list_push_back(rules, &rule->ofproto_node); | |
2106 | } | |
2107 | } | |
2108 | } | |
2109 | return 0; | |
2110 | } | |
2111 | ||
064af421 | 2112 | static int |
63f2140a | 2113 | handle_flow_stats_request(struct ofconn *ofconn, |
349adfb2 | 2114 | const struct ofp_stats_msg *osm) |
064af421 | 2115 | { |
64ff1d96 | 2116 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
81d1ea94 | 2117 | struct ofputil_flow_stats_request fsr; |
63f2140a | 2118 | struct list replies; |
9ed18e46 BP |
2119 | struct list rules; |
2120 | struct rule *rule; | |
09246b99 BP |
2121 | int error; |
2122 | ||
349adfb2 | 2123 | error = ofputil_decode_flow_stats_request(&fsr, &osm->header); |
09246b99 BP |
2124 | if (error) { |
2125 | return error; | |
2126 | } | |
2127 | ||
9ed18e46 BP |
2128 | error = collect_rules_loose(ofproto, fsr.table_id, &fsr.match, |
2129 | fsr.out_port, &rules); | |
2130 | if (error) { | |
2131 | return error; | |
2132 | } | |
5ecc9d81 | 2133 | |
9ed18e46 BP |
2134 | ofputil_start_stats_reply(osm, &replies); |
2135 | LIST_FOR_EACH (rule, ofproto_node, &rules) { | |
2136 | struct ofputil_flow_stats fs; | |
2137 | ||
2138 | fs.rule = rule->cr; | |
2139 | fs.cookie = rule->flow_cookie; | |
2140 | fs.table_id = rule->table_id; | |
2141 | calc_flow_duration__(rule->created, &fs.duration_sec, | |
2142 | &fs.duration_nsec); | |
2143 | fs.idle_timeout = rule->idle_timeout; | |
2144 | fs.hard_timeout = rule->hard_timeout; | |
2145 | ofproto->ofproto_class->rule_get_stats(rule, &fs.packet_count, | |
2146 | &fs.byte_count); | |
2147 | fs.actions = rule->actions; | |
2148 | fs.n_actions = rule->n_actions; | |
2149 | ofputil_append_flow_stats_reply(&fs, &replies); | |
3c4486a5 | 2150 | } |
63f2140a | 2151 | ofconn_send_replies(ofconn, &replies); |
5ecc9d81 | 2152 | |
09246b99 BP |
2153 | return 0; |
2154 | } | |
2155 | ||
4f2cad2c | 2156 | static void |
3394b5b6 | 2157 | flow_stats_ds(struct rule *rule, struct ds *results) |
4f2cad2c | 2158 | { |
4f2cad2c | 2159 | uint64_t packet_count, byte_count; |
4f2cad2c | 2160 | |
abe529af BP |
2161 | rule->ofproto->ofproto_class->rule_get_stats(rule, |
2162 | &packet_count, &byte_count); | |
4f2cad2c | 2163 | |
6c1491fb BP |
2164 | if (rule->table_id != 0) { |
2165 | ds_put_format(results, "table_id=%"PRIu8", ", rule->table_id); | |
2166 | } | |
4f2cad2c JP |
2167 | ds_put_format(results, "duration=%llds, ", |
2168 | (time_msec() - rule->created) / 1000); | |
52ae00b3 | 2169 | ds_put_format(results, "priority=%u, ", rule->cr.priority); |
4f2cad2c JP |
2170 | ds_put_format(results, "n_packets=%"PRIu64", ", packet_count); |
2171 | ds_put_format(results, "n_bytes=%"PRIu64", ", byte_count); | |
cb833cf6 | 2172 | cls_rule_format(&rule->cr, results); |
a5df0e72 | 2173 | ds_put_char(results, ','); |
b4b8c781 BP |
2174 | if (rule->n_actions > 0) { |
2175 | ofp_print_actions(results, rule->actions, rule->n_actions); | |
3c8552c1 JP |
2176 | } else { |
2177 | ds_put_cstr(results, "drop"); | |
3dffcf07 | 2178 | } |
4f2cad2c JP |
2179 | ds_put_cstr(results, "\n"); |
2180 | } | |
2181 | ||
d295e8e9 | 2182 | /* Adds a pretty-printed description of all flows to 'results', including |
ee8b231c | 2183 | * hidden flows (e.g., set up by in-band control). */ |
4f2cad2c JP |
2184 | void |
2185 | ofproto_get_all_flows(struct ofproto *p, struct ds *results) | |
2186 | { | |
6c1491fb BP |
2187 | struct classifier *cls; |
2188 | ||
b772ded8 | 2189 | OFPROTO_FOR_EACH_TABLE (cls, p) { |
6c1491fb BP |
2190 | struct cls_cursor cursor; |
2191 | struct rule *rule; | |
064af421 | 2192 | |
6c1491fb BP |
2193 | cls_cursor_init(&cursor, cls, NULL); |
2194 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { | |
2195 | flow_stats_ds(rule, results); | |
2196 | } | |
064af421 | 2197 | } |
064af421 BP |
2198 | } |
2199 | ||
b5827b24 BP |
2200 | /* Obtains the NetFlow engine type and engine ID for 'ofproto' into |
2201 | * '*engine_type' and '*engine_id', respectively. */ | |
2202 | void | |
2203 | ofproto_get_netflow_ids(const struct ofproto *ofproto, | |
2204 | uint8_t *engine_type, uint8_t *engine_id) | |
2205 | { | |
abe529af | 2206 | ofproto->ofproto_class->get_netflow_ids(ofproto, engine_type, engine_id); |
b5827b24 BP |
2207 | } |
2208 | ||
a5610457 EJ |
2209 | /* Checks the fault status of CFM for 'ofp_port' within 'ofproto'. Returns 1 |
2210 | * if CFM is faulted (generally indiciating a connectivity problem), 0 if CFM | |
2211 | * is not faulted, and -1 if CFM is not enabled on 'ofp_port'. */ | |
2212 | int | |
2213 | ofproto_port_get_cfm_fault(const struct ofproto *ofproto, uint16_t ofp_port) | |
2214 | { | |
2215 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
2216 | return (ofport && ofproto->ofproto_class->get_cfm_fault | |
2217 | ? ofproto->ofproto_class->get_cfm_fault(ofport) | |
2218 | : -1); | |
2219 | } | |
2220 | ||
1de11730 EJ |
2221 | /* Gets the MPIDs of the remote maintenance points broadcasting to 'ofp_port' |
2222 | * within 'ofproto'. Populates 'rmps' with an array of MPIDs owned by | |
2223 | * 'ofproto', and 'n_rmps' with the number of MPIDs in 'rmps'. Returns a | |
2224 | * number less than 0 if CFM is not enabled on 'ofp_port'. */ | |
2225 | int | |
2226 | ofproto_port_get_cfm_remote_mpids(const struct ofproto *ofproto, | |
2227 | uint16_t ofp_port, const uint64_t **rmps, | |
2228 | size_t *n_rmps) | |
2229 | { | |
2230 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
2231 | ||
2232 | *rmps = NULL; | |
2233 | *n_rmps = 0; | |
2234 | return (ofport && ofproto->ofproto_class->get_cfm_remote_mpids | |
2235 | ? ofproto->ofproto_class->get_cfm_remote_mpids(ofport, rmps, | |
2236 | n_rmps) | |
2237 | : -1); | |
2238 | } | |
2239 | ||
76c93b22 BP |
2240 | static int |
2241 | handle_aggregate_stats_request(struct ofconn *ofconn, | |
2242 | const struct ofp_stats_msg *osm) | |
27d34fce | 2243 | { |
76c93b22 | 2244 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
81d1ea94 | 2245 | struct ofputil_flow_stats_request request; |
76c93b22 | 2246 | struct ofputil_aggregate_stats stats; |
5e9d0469 | 2247 | bool unknown_packets, unknown_bytes; |
76c93b22 | 2248 | struct ofpbuf *reply; |
9ed18e46 BP |
2249 | struct list rules; |
2250 | struct rule *rule; | |
76c93b22 | 2251 | int error; |
27d34fce | 2252 | |
76c93b22 BP |
2253 | error = ofputil_decode_flow_stats_request(&request, &osm->header); |
2254 | if (error) { | |
2255 | return error; | |
2256 | } | |
5ecc9d81 | 2257 | |
9ed18e46 BP |
2258 | error = collect_rules_loose(ofproto, request.table_id, &request.match, |
2259 | request.out_port, &rules); | |
2260 | if (error) { | |
2261 | return error; | |
2262 | } | |
3c4486a5 | 2263 | |
9ed18e46 | 2264 | memset(&stats, 0, sizeof stats); |
5e9d0469 | 2265 | unknown_packets = unknown_bytes = false; |
9ed18e46 BP |
2266 | LIST_FOR_EACH (rule, ofproto_node, &rules) { |
2267 | uint64_t packet_count; | |
2268 | uint64_t byte_count; | |
5ecc9d81 | 2269 | |
9ed18e46 BP |
2270 | ofproto->ofproto_class->rule_get_stats(rule, &packet_count, |
2271 | &byte_count); | |
5ecc9d81 | 2272 | |
5e9d0469 BP |
2273 | if (packet_count == UINT64_MAX) { |
2274 | unknown_packets = true; | |
2275 | } else { | |
2276 | stats.packet_count += packet_count; | |
2277 | } | |
2278 | ||
2279 | if (byte_count == UINT64_MAX) { | |
2280 | unknown_bytes = true; | |
2281 | } else { | |
2282 | stats.byte_count += byte_count; | |
2283 | } | |
2284 | ||
9ed18e46 | 2285 | stats.flow_count++; |
3c4486a5 | 2286 | } |
5e9d0469 BP |
2287 | if (unknown_packets) { |
2288 | stats.packet_count = UINT64_MAX; | |
2289 | } | |
2290 | if (unknown_bytes) { | |
2291 | stats.byte_count = UINT64_MAX; | |
2292 | } | |
27d34fce | 2293 | |
76c93b22 BP |
2294 | reply = ofputil_encode_aggregate_stats_reply(&stats, osm); |
2295 | ofconn_send_reply(ofconn, reply); | |
09246b99 BP |
2296 | |
2297 | return 0; | |
2298 | } | |
2299 | ||
c1c9c9c4 | 2300 | struct queue_stats_cbdata { |
ca0f572c | 2301 | struct ofport *ofport; |
63f2140a | 2302 | struct list replies; |
c1c9c9c4 BP |
2303 | }; |
2304 | ||
2305 | static void | |
db9220c3 | 2306 | put_queue_stats(struct queue_stats_cbdata *cbdata, uint32_t queue_id, |
c1c9c9c4 BP |
2307 | const struct netdev_queue_stats *stats) |
2308 | { | |
2309 | struct ofp_queue_stats *reply; | |
2310 | ||
63f2140a | 2311 | reply = ofputil_append_stats_reply(sizeof *reply, &cbdata->replies); |
118c4676 | 2312 | reply->port_no = cbdata->ofport->opp.port_no; |
c1c9c9c4 BP |
2313 | memset(reply->pad, 0, sizeof reply->pad); |
2314 | reply->queue_id = htonl(queue_id); | |
c4617b3c BP |
2315 | put_32aligned_be64(&reply->tx_bytes, htonll(stats->tx_bytes)); |
2316 | put_32aligned_be64(&reply->tx_packets, htonll(stats->tx_packets)); | |
2317 | put_32aligned_be64(&reply->tx_errors, htonll(stats->tx_errors)); | |
c1c9c9c4 BP |
2318 | } |
2319 | ||
2320 | static void | |
db9220c3 | 2321 | handle_queue_stats_dump_cb(uint32_t queue_id, |
c1c9c9c4 BP |
2322 | struct netdev_queue_stats *stats, |
2323 | void *cbdata_) | |
2324 | { | |
2325 | struct queue_stats_cbdata *cbdata = cbdata_; | |
2326 | ||
2327 | put_queue_stats(cbdata, queue_id, stats); | |
2328 | } | |
2329 | ||
2330 | static void | |
ca0f572c | 2331 | handle_queue_stats_for_port(struct ofport *port, uint32_t queue_id, |
c1c9c9c4 BP |
2332 | struct queue_stats_cbdata *cbdata) |
2333 | { | |
ca0f572c | 2334 | cbdata->ofport = port; |
c1c9c9c4 BP |
2335 | if (queue_id == OFPQ_ALL) { |
2336 | netdev_dump_queue_stats(port->netdev, | |
2337 | handle_queue_stats_dump_cb, cbdata); | |
2338 | } else { | |
2339 | struct netdev_queue_stats stats; | |
2340 | ||
1ac788f6 BP |
2341 | if (!netdev_get_queue_stats(port->netdev, queue_id, &stats)) { |
2342 | put_queue_stats(cbdata, queue_id, &stats); | |
2343 | } | |
c1c9c9c4 BP |
2344 | } |
2345 | } | |
2346 | ||
2347 | static int | |
63f2140a BP |
2348 | handle_queue_stats_request(struct ofconn *ofconn, |
2349 | const struct ofp_queue_stats_request *qsr) | |
c1c9c9c4 | 2350 | { |
64ff1d96 | 2351 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
c1c9c9c4 BP |
2352 | struct queue_stats_cbdata cbdata; |
2353 | struct ofport *port; | |
2354 | unsigned int port_no; | |
2355 | uint32_t queue_id; | |
2356 | ||
c1c9c9c4 BP |
2357 | COVERAGE_INC(ofproto_queue_req); |
2358 | ||
63f2140a | 2359 | ofputil_start_stats_reply(&qsr->osm, &cbdata.replies); |
c1c9c9c4 BP |
2360 | |
2361 | port_no = ntohs(qsr->port_no); | |
2362 | queue_id = ntohl(qsr->queue_id); | |
2363 | if (port_no == OFPP_ALL) { | |
4e8e4213 | 2364 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
ca0f572c | 2365 | handle_queue_stats_for_port(port, queue_id, &cbdata); |
c1c9c9c4 | 2366 | } |
abe529af BP |
2367 | } else if (port_no < OFPP_MAX) { |
2368 | port = ofproto_get_port(ofproto, port_no); | |
c1c9c9c4 | 2369 | if (port) { |
ca0f572c | 2370 | handle_queue_stats_for_port(port, queue_id, &cbdata); |
c1c9c9c4 BP |
2371 | } |
2372 | } else { | |
63f2140a | 2373 | ofpbuf_list_delete(&cbdata.replies); |
c1c9c9c4 BP |
2374 | return ofp_mkerr(OFPET_QUEUE_OP_FAILED, OFPQOFC_BAD_PORT); |
2375 | } | |
63f2140a | 2376 | ofconn_send_replies(ofconn, &cbdata.replies); |
c1c9c9c4 BP |
2377 | |
2378 | return 0; | |
2379 | } | |
7ee20df1 BP |
2380 | |
2381 | static bool | |
2382 | is_flow_deletion_pending(const struct ofproto *ofproto, | |
2383 | const struct cls_rule *cls_rule, | |
2384 | uint8_t table_id) | |
2385 | { | |
2386 | if (!hmap_is_empty(&ofproto->deletions)) { | |
2387 | struct ofoperation *op; | |
2388 | ||
2389 | HMAP_FOR_EACH_WITH_HASH (op, hmap_node, | |
2390 | cls_rule_hash(cls_rule, table_id), | |
2391 | &ofproto->deletions) { | |
2392 | if (cls_rule_equal(cls_rule, &op->rule->cr)) { | |
2393 | return true; | |
2394 | } | |
2395 | } | |
2396 | } | |
2397 | ||
2398 | return false; | |
2399 | } | |
2400 | ||
79eee1eb BP |
2401 | /* Implements OFPFC_ADD and the cases for OFPFC_MODIFY and OFPFC_MODIFY_STRICT |
2402 | * in which no matching flow already exists in the flow table. | |
2403 | * | |
2404 | * Adds the flow specified by 'ofm', which is followed by 'n_actions' | |
75a75043 BP |
2405 | * ofp_actions, to the ofproto's flow table. Returns 0 on success, an OpenFlow |
2406 | * error code as encoded by ofp_mkerr() on failure, or OFPROTO_POSTPONE if the | |
2407 | * operation cannot be initiated now but may be retried later. | |
79eee1eb BP |
2408 | * |
2409 | * 'ofconn' is used to retrieve the packet buffer specified in ofm->buffer_id, | |
2410 | * if any. */ | |
064af421 | 2411 | static int |
a9a2da38 | 2412 | add_flow(struct ofproto *ofproto, struct ofconn *ofconn, |
1b9d6420 | 2413 | const struct ofputil_flow_mod *fm, const struct ofp_header *request) |
064af421 | 2414 | { |
7ee20df1 BP |
2415 | struct classifier *table; |
2416 | struct ofopgroup *group; | |
2417 | struct rule *victim; | |
064af421 | 2418 | struct rule *rule; |
064af421 BP |
2419 | int error; |
2420 | ||
48266274 BP |
2421 | error = check_table_id(ofproto, fm->table_id); |
2422 | if (error) { | |
2423 | return error; | |
2424 | } | |
2425 | ||
7ee20df1 BP |
2426 | /* Pick table. */ |
2427 | if (fm->table_id == 0xff) { | |
2428 | uint8_t table_id; | |
13521ff5 | 2429 | if (ofproto->ofproto_class->rule_choose_table) { |
7ee20df1 BP |
2430 | error = ofproto->ofproto_class->rule_choose_table(ofproto, &fm->cr, |
2431 | &table_id); | |
2432 | if (error) { | |
2433 | return error; | |
2434 | } | |
2435 | assert(table_id < ofproto->n_tables); | |
2436 | table = &ofproto->tables[table_id]; | |
2437 | } else { | |
2438 | table = &ofproto->tables[0]; | |
2439 | } | |
2440 | } else if (fm->table_id < ofproto->n_tables) { | |
2441 | table = &ofproto->tables[fm->table_id]; | |
2442 | } else { | |
2443 | return ofp_mkerr_nicira(OFPET_FLOW_MOD_FAILED, NXFMFC_BAD_TABLE_ID); | |
064af421 BP |
2444 | } |
2445 | ||
63adcc7d BP |
2446 | /* Check for overlap, if requested. */ |
2447 | if (fm->flags & OFPFF_CHECK_OVERLAP | |
2448 | && classifier_rule_overlaps(table, &fm->cr)) { | |
2449 | return ofp_mkerr(OFPET_FLOW_MOD_FAILED, OFPFMFC_OVERLAP); | |
2450 | } | |
2451 | ||
7ee20df1 BP |
2452 | /* Serialize against pending deletion. */ |
2453 | if (is_flow_deletion_pending(ofproto, &fm->cr, table - ofproto->tables)) { | |
2454 | return OFPROTO_POSTPONE; | |
afe75089 | 2455 | } |
064af421 | 2456 | |
7ee20df1 BP |
2457 | /* Allocate new rule. */ |
2458 | rule = ofproto->ofproto_class->rule_alloc(); | |
2459 | if (!rule) { | |
2460 | VLOG_WARN_RL(&rl, "%s: failed to create rule (%s)", | |
2461 | ofproto->name, strerror(error)); | |
2462 | return ENOMEM; | |
2463 | } | |
2464 | rule->ofproto = ofproto; | |
2465 | rule->cr = fm->cr; | |
2466 | rule->pending = NULL; | |
2467 | rule->flow_cookie = fm->cookie; | |
308881af | 2468 | rule->created = rule->modified = time_msec(); |
7ee20df1 BP |
2469 | rule->idle_timeout = fm->idle_timeout; |
2470 | rule->hard_timeout = fm->hard_timeout; | |
2471 | rule->table_id = table - ofproto->tables; | |
2472 | rule->send_flow_removed = (fm->flags & OFPFF_SEND_FLOW_REM) != 0; | |
2473 | rule->actions = ofputil_actions_clone(fm->actions, fm->n_actions); | |
2474 | rule->n_actions = fm->n_actions; | |
2475 | ||
2476 | /* Insert new rule. */ | |
2477 | victim = rule_from_cls_rule(classifier_replace(table, &rule->cr)); | |
2478 | if (victim && victim->pending) { | |
2479 | error = OFPROTO_POSTPONE; | |
2480 | } else { | |
7024dffe | 2481 | group = ofopgroup_create(ofproto, ofconn, request, fm->buffer_id); |
7ee20df1 BP |
2482 | ofoperation_create(group, rule, OFOPERATION_ADD); |
2483 | rule->pending->victim = victim; | |
2484 | ||
2485 | error = ofproto->ofproto_class->rule_construct(rule); | |
2486 | if (error) { | |
2487 | ofoperation_destroy(rule->pending); | |
2488 | } | |
2489 | ofopgroup_submit(group); | |
064af421 | 2490 | } |
79eee1eb | 2491 | |
7ee20df1 | 2492 | /* Back out if an error occurred. */ |
79eee1eb | 2493 | if (error) { |
7ee20df1 BP |
2494 | if (victim) { |
2495 | classifier_replace(table, &victim->cr); | |
2496 | } else { | |
2497 | classifier_remove(table, &rule->cr); | |
2498 | } | |
2499 | ofproto_rule_destroy__(rule); | |
79eee1eb | 2500 | } |
7ee20df1 | 2501 | return error; |
064af421 | 2502 | } |
79eee1eb BP |
2503 | \f |
2504 | /* OFPFC_MODIFY and OFPFC_MODIFY_STRICT. */ | |
064af421 | 2505 | |
9ed18e46 BP |
2506 | /* Modifies the rules listed in 'rules', changing their actions to match those |
2507 | * in 'fm'. | |
79eee1eb | 2508 | * |
9ed18e46 BP |
2509 | * 'ofconn' is used to retrieve the packet buffer specified in fm->buffer_id, |
2510 | * if any. | |
2511 | * | |
2512 | * Returns 0 on success, otherwise an OpenFlow error code. */ | |
79eee1eb | 2513 | static int |
7024dffe BP |
2514 | modify_flows__(struct ofproto *ofproto, struct ofconn *ofconn, |
2515 | const struct ofputil_flow_mod *fm, | |
7ee20df1 | 2516 | const struct ofp_header *request, struct list *rules) |
79eee1eb | 2517 | { |
7ee20df1 | 2518 | struct ofopgroup *group; |
9ed18e46 | 2519 | struct rule *rule; |
79eee1eb | 2520 | |
7024dffe | 2521 | group = ofopgroup_create(ofproto, ofconn, request, fm->buffer_id); |
9ed18e46 BP |
2522 | LIST_FOR_EACH (rule, ofproto_node, rules) { |
2523 | if (!ofputil_actions_equal(fm->actions, fm->n_actions, | |
2524 | rule->actions, rule->n_actions)) { | |
7ee20df1 BP |
2525 | ofoperation_create(group, rule, OFOPERATION_MODIFY); |
2526 | rule->pending->actions = rule->actions; | |
2527 | rule->pending->n_actions = rule->n_actions; | |
2528 | rule->actions = ofputil_actions_clone(fm->actions, fm->n_actions); | |
2529 | rule->n_actions = fm->n_actions; | |
2530 | rule->ofproto->ofproto_class->rule_modify_actions(rule); | |
308881af BP |
2531 | } else { |
2532 | rule->modified = time_msec(); | |
5ecc9d81 | 2533 | } |
9ed18e46 | 2534 | rule->flow_cookie = fm->cookie; |
5ecc9d81 | 2535 | } |
7ee20df1 | 2536 | ofopgroup_submit(group); |
79eee1eb | 2537 | |
7ee20df1 | 2538 | return 0; |
9ed18e46 BP |
2539 | } |
2540 | ||
2541 | /* Implements OFPFC_MODIFY. Returns 0 on success or an OpenFlow error code as | |
2542 | * encoded by ofp_mkerr() on failure. | |
2543 | * | |
2544 | * 'ofconn' is used to retrieve the packet buffer specified in fm->buffer_id, | |
2545 | * if any. */ | |
2546 | static int | |
7024dffe | 2547 | modify_flows_loose(struct ofproto *ofproto, struct ofconn *ofconn, |
1b9d6420 | 2548 | const struct ofputil_flow_mod *fm, |
7ee20df1 | 2549 | const struct ofp_header *request) |
9ed18e46 | 2550 | { |
9ed18e46 BP |
2551 | struct list rules; |
2552 | int error; | |
2553 | ||
7024dffe BP |
2554 | error = collect_rules_loose(ofproto, fm->table_id, &fm->cr, OFPP_NONE, |
2555 | &rules); | |
9ed18e46 | 2556 | return (error ? error |
7024dffe BP |
2557 | : list_is_empty(&rules) ? add_flow(ofproto, ofconn, fm, request) |
2558 | : modify_flows__(ofproto, ofconn, fm, request, &rules)); | |
79eee1eb BP |
2559 | } |
2560 | ||
2561 | /* Implements OFPFC_MODIFY_STRICT. Returns 0 on success or an OpenFlow error | |
2562 | * code as encoded by ofp_mkerr() on failure. | |
2563 | * | |
9ed18e46 | 2564 | * 'ofconn' is used to retrieve the packet buffer specified in fm->buffer_id, |
79eee1eb BP |
2565 | * if any. */ |
2566 | static int | |
7024dffe | 2567 | modify_flow_strict(struct ofproto *ofproto, struct ofconn *ofconn, |
1b9d6420 | 2568 | const struct ofputil_flow_mod *fm, |
7ee20df1 | 2569 | const struct ofp_header *request) |
79eee1eb | 2570 | { |
9ed18e46 | 2571 | struct list rules; |
6c1491fb BP |
2572 | int error; |
2573 | ||
7024dffe BP |
2574 | error = collect_rules_strict(ofproto, fm->table_id, &fm->cr, OFPP_NONE, |
2575 | &rules); | |
9ed18e46 | 2576 | return (error ? error |
7024dffe BP |
2577 | : list_is_empty(&rules) ? add_flow(ofproto, ofconn, fm, request) |
2578 | : list_is_singleton(&rules) ? modify_flows__(ofproto, ofconn, | |
2579 | fm, request, &rules) | |
9ed18e46 | 2580 | : 0); |
79eee1eb | 2581 | } |
9ed18e46 BP |
2582 | \f |
2583 | /* OFPFC_DELETE implementation. */ | |
79eee1eb | 2584 | |
9ed18e46 BP |
2585 | /* Deletes the rules listed in 'rules'. |
2586 | * | |
2587 | * Returns 0 on success, otherwise an OpenFlow error code. */ | |
064af421 | 2588 | static int |
7024dffe BP |
2589 | delete_flows__(struct ofproto *ofproto, struct ofconn *ofconn, |
2590 | const struct ofp_header *request, struct list *rules) | |
064af421 | 2591 | { |
9ed18e46 | 2592 | struct rule *rule, *next; |
7ee20df1 | 2593 | struct ofopgroup *group; |
79eee1eb | 2594 | |
7024dffe | 2595 | group = ofopgroup_create(ofproto, ofconn, request, UINT32_MAX); |
9ed18e46 BP |
2596 | LIST_FOR_EACH_SAFE (rule, next, ofproto_node, rules) { |
2597 | ofproto_rule_send_removed(rule, OFPRR_DELETE); | |
7ee20df1 BP |
2598 | |
2599 | ofoperation_create(group, rule, OFOPERATION_DELETE); | |
2600 | classifier_remove(&ofproto->tables[rule->table_id], &rule->cr); | |
2601 | rule->ofproto->ofproto_class->rule_destruct(rule); | |
79eee1eb | 2602 | } |
7ee20df1 | 2603 | ofopgroup_submit(group); |
79eee1eb | 2604 | |
9ed18e46 | 2605 | return 0; |
79eee1eb | 2606 | } |
79eee1eb BP |
2607 | |
2608 | /* Implements OFPFC_DELETE. */ | |
9ed18e46 | 2609 | static int |
7024dffe BP |
2610 | delete_flows_loose(struct ofproto *ofproto, struct ofconn *ofconn, |
2611 | const struct ofputil_flow_mod *fm, | |
7ee20df1 | 2612 | const struct ofp_header *request) |
79eee1eb | 2613 | { |
9ed18e46 BP |
2614 | struct list rules; |
2615 | int error; | |
064af421 | 2616 | |
7024dffe | 2617 | error = collect_rules_loose(ofproto, fm->table_id, &fm->cr, fm->out_port, |
9ed18e46 BP |
2618 | &rules); |
2619 | return (error ? error | |
7024dffe BP |
2620 | : !list_is_empty(&rules) ? delete_flows__(ofproto, ofconn, request, |
2621 | &rules) | |
9ed18e46 | 2622 | : 0); |
064af421 BP |
2623 | } |
2624 | ||
79eee1eb | 2625 | /* Implements OFPFC_DELETE_STRICT. */ |
9ed18e46 | 2626 | static int |
7024dffe | 2627 | delete_flow_strict(struct ofproto *ofproto, struct ofconn *ofconn, |
1b9d6420 | 2628 | const struct ofputil_flow_mod *fm, |
7ee20df1 | 2629 | const struct ofp_header *request) |
79eee1eb | 2630 | { |
9ed18e46 BP |
2631 | struct list rules; |
2632 | int error; | |
79eee1eb | 2633 | |
7024dffe | 2634 | error = collect_rules_strict(ofproto, fm->table_id, &fm->cr, fm->out_port, |
9ed18e46 BP |
2635 | &rules); |
2636 | return (error ? error | |
7024dffe BP |
2637 | : list_is_singleton(&rules) ? delete_flows__(ofproto, ofconn, |
2638 | request, &rules) | |
9ed18e46 | 2639 | : 0); |
abe529af BP |
2640 | } |
2641 | ||
2642 | static void | |
2643 | ofproto_rule_send_removed(struct rule *rule, uint8_t reason) | |
2644 | { | |
2645 | struct ofputil_flow_removed fr; | |
2646 | ||
2647 | if (rule_is_hidden(rule) || !rule->send_flow_removed) { | |
2648 | return; | |
2649 | } | |
2650 | ||
2651 | fr.rule = rule->cr; | |
2652 | fr.cookie = rule->flow_cookie; | |
2653 | fr.reason = reason; | |
2654 | calc_flow_duration__(rule->created, &fr.duration_sec, &fr.duration_nsec); | |
2655 | fr.idle_timeout = rule->idle_timeout; | |
2656 | rule->ofproto->ofproto_class->rule_get_stats(rule, &fr.packet_count, | |
2657 | &fr.byte_count); | |
2658 | ||
2659 | connmgr_send_flow_removed(rule->ofproto->connmgr, &fr); | |
2660 | } | |
2661 | ||
2662 | /* Sends an OpenFlow "flow removed" message with the given 'reason' (either | |
2663 | * OFPRR_HARD_TIMEOUT or OFPRR_IDLE_TIMEOUT), and then removes 'rule' from its | |
2664 | * ofproto. | |
2665 | * | |
2666 | * ofproto implementation ->run() functions should use this function to expire | |
2667 | * OpenFlow flows. */ | |
2668 | void | |
2669 | ofproto_rule_expire(struct rule *rule, uint8_t reason) | |
2670 | { | |
7ee20df1 BP |
2671 | struct ofproto *ofproto = rule->ofproto; |
2672 | struct ofopgroup *group; | |
2673 | ||
abe529af | 2674 | assert(reason == OFPRR_HARD_TIMEOUT || reason == OFPRR_IDLE_TIMEOUT); |
7ee20df1 | 2675 | |
abe529af | 2676 | ofproto_rule_send_removed(rule, reason); |
7ee20df1 | 2677 | |
7024dffe | 2678 | group = ofopgroup_create_unattached(ofproto); |
7ee20df1 BP |
2679 | ofoperation_create(group, rule, OFOPERATION_DELETE); |
2680 | classifier_remove(&ofproto->tables[rule->table_id], &rule->cr); | |
2681 | rule->ofproto->ofproto_class->rule_destruct(rule); | |
2682 | ofopgroup_submit(group); | |
79eee1eb BP |
2683 | } |
2684 | \f | |
064af421 | 2685 | static int |
2e4f5fcf | 2686 | handle_flow_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 2687 | { |
a9a2da38 | 2688 | struct ofputil_flow_mod fm; |
064af421 BP |
2689 | int error; |
2690 | ||
76589937 | 2691 | error = reject_slave_controller(ofconn); |
9deba63b BP |
2692 | if (error) { |
2693 | return error; | |
2694 | } | |
3052b0c5 | 2695 | |
00794817 | 2696 | error = ofputil_decode_flow_mod(&fm, oh, |
6c1491fb | 2697 | ofconn_get_flow_mod_table_id(ofconn)); |
064af421 BP |
2698 | if (error) { |
2699 | return error; | |
2700 | } | |
2701 | ||
2e4f5fcf BP |
2702 | /* We do not support the emergency flow cache. It will hopefully get |
2703 | * dropped from OpenFlow in the near future. */ | |
2704 | if (fm.flags & OFPFF_EMERG) { | |
49bdc010 JP |
2705 | /* There isn't a good fit for an error code, so just state that the |
2706 | * flow table is full. */ | |
2707 | return ofp_mkerr(OFPET_FLOW_MOD_FAILED, OFPFMFC_ALL_TABLES_FULL); | |
2708 | } | |
2709 | ||
75a75043 BP |
2710 | return handle_flow_mod__(ofconn_get_ofproto(ofconn), ofconn, &fm, oh); |
2711 | } | |
2712 | ||
2713 | static int | |
2714 | handle_flow_mod__(struct ofproto *ofproto, struct ofconn *ofconn, | |
2715 | const struct ofputil_flow_mod *fm, | |
2716 | const struct ofp_header *oh) | |
2717 | { | |
2718 | if (ofproto->n_pending >= 50) { | |
2719 | assert(!list_is_empty(&ofproto->pending)); | |
2720 | return OFPROTO_POSTPONE; | |
2721 | } | |
2722 | ||
2723 | switch (fm->command) { | |
3052b0c5 | 2724 | case OFPFC_ADD: |
75a75043 | 2725 | return add_flow(ofproto, ofconn, fm, oh); |
3052b0c5 BP |
2726 | |
2727 | case OFPFC_MODIFY: | |
75a75043 | 2728 | return modify_flows_loose(ofproto, ofconn, fm, oh); |
3052b0c5 BP |
2729 | |
2730 | case OFPFC_MODIFY_STRICT: | |
75a75043 | 2731 | return modify_flow_strict(ofproto, ofconn, fm, oh); |
3052b0c5 BP |
2732 | |
2733 | case OFPFC_DELETE: | |
75a75043 | 2734 | return delete_flows_loose(ofproto, ofconn, fm, oh); |
3052b0c5 BP |
2735 | |
2736 | case OFPFC_DELETE_STRICT: | |
75a75043 | 2737 | return delete_flow_strict(ofproto, ofconn, fm, oh); |
3052b0c5 BP |
2738 | |
2739 | default: | |
75a75043 | 2740 | if (fm->command > 0xff) { |
6c1491fb BP |
2741 | VLOG_WARN_RL(&rl, "flow_mod has explicit table_id but " |
2742 | "flow_mod_table_id extension is not enabled"); | |
2743 | } | |
3052b0c5 BP |
2744 | return ofp_mkerr(OFPET_FLOW_MOD_FAILED, OFPFMFC_BAD_COMMAND); |
2745 | } | |
2746 | } | |
2747 | ||
9deba63b | 2748 | static int |
d1e2cf21 | 2749 | handle_role_request(struct ofconn *ofconn, const struct ofp_header *oh) |
9deba63b | 2750 | { |
d1e2cf21 | 2751 | struct nx_role_request *nrr = (struct nx_role_request *) oh; |
9deba63b BP |
2752 | struct nx_role_request *reply; |
2753 | struct ofpbuf *buf; | |
2754 | uint32_t role; | |
2755 | ||
1ce0a5fa | 2756 | if (ofconn_get_type(ofconn) != OFCONN_PRIMARY) { |
9deba63b BP |
2757 | return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_EPERM); |
2758 | } | |
2759 | ||
2760 | role = ntohl(nrr->role); | |
2761 | if (role != NX_ROLE_OTHER && role != NX_ROLE_MASTER | |
2762 | && role != NX_ROLE_SLAVE) { | |
68f36edf | 2763 | return ofp_mkerr_nicira(OFPET_BAD_REQUEST, NXBRC_BAD_ROLE); |
9deba63b BP |
2764 | } |
2765 | ||
7ee20df1 BP |
2766 | if (ofconn_get_role(ofconn) != role |
2767 | && ofconn_has_pending_opgroups(ofconn)) { | |
2768 | return OFPROTO_POSTPONE; | |
2769 | } | |
2770 | ||
1ce0a5fa | 2771 | ofconn_set_role(ofconn, role); |
9deba63b | 2772 | |
d1e2cf21 | 2773 | reply = make_nxmsg_xid(sizeof *reply, NXT_ROLE_REPLY, oh->xid, &buf); |
9deba63b | 2774 | reply->role = htonl(role); |
b0421aa2 | 2775 | ofconn_send_reply(ofconn, buf); |
9deba63b BP |
2776 | |
2777 | return 0; | |
2778 | } | |
2779 | ||
6c1491fb BP |
2780 | static int |
2781 | handle_nxt_flow_mod_table_id(struct ofconn *ofconn, | |
2782 | const struct ofp_header *oh) | |
2783 | { | |
2784 | const struct nxt_flow_mod_table_id *msg | |
2785 | = (const struct nxt_flow_mod_table_id *) oh; | |
2786 | ||
2787 | ofconn_set_flow_mod_table_id(ofconn, msg->set != 0); | |
2788 | return 0; | |
2789 | } | |
2790 | ||
09246b99 | 2791 | static int |
d1e2cf21 | 2792 | handle_nxt_set_flow_format(struct ofconn *ofconn, const struct ofp_header *oh) |
09246b99 | 2793 | { |
d1e2cf21 BP |
2794 | const struct nxt_set_flow_format *msg |
2795 | = (const struct nxt_set_flow_format *) oh; | |
09246b99 | 2796 | uint32_t format; |
09246b99 BP |
2797 | |
2798 | format = ntohl(msg->format); | |
7ee20df1 | 2799 | if (format != NXFF_OPENFLOW10 && format != NXFF_NXM) { |
09246b99 BP |
2800 | return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_EPERM); |
2801 | } | |
7ee20df1 BP |
2802 | |
2803 | if (format != ofconn_get_flow_format(ofconn) | |
2804 | && ofconn_has_pending_opgroups(ofconn)) { | |
2805 | /* Avoid sending async messages in surprising flow format. */ | |
2806 | return OFPROTO_POSTPONE; | |
2807 | } | |
2808 | ||
2809 | ofconn_set_flow_format(ofconn, format); | |
2810 | return 0; | |
09246b99 BP |
2811 | } |
2812 | ||
064af421 | 2813 | static int |
d1e2cf21 | 2814 | handle_barrier_request(struct ofconn *ofconn, const struct ofp_header *oh) |
246e61ea JP |
2815 | { |
2816 | struct ofp_header *ob; | |
2817 | struct ofpbuf *buf; | |
2818 | ||
7ee20df1 BP |
2819 | if (ofconn_has_pending_opgroups(ofconn)) { |
2820 | return OFPROTO_POSTPONE; | |
2821 | } | |
2822 | ||
246e61ea | 2823 | ob = make_openflow_xid(sizeof *ob, OFPT_BARRIER_REPLY, oh->xid, &buf); |
b0421aa2 | 2824 | ofconn_send_reply(ofconn, buf); |
246e61ea JP |
2825 | return 0; |
2826 | } | |
2827 | ||
d1e2cf21 BP |
2828 | static int |
2829 | handle_openflow__(struct ofconn *ofconn, const struct ofpbuf *msg) | |
064af421 | 2830 | { |
d1e2cf21 BP |
2831 | const struct ofp_header *oh = msg->data; |
2832 | const struct ofputil_msg_type *type; | |
064af421 BP |
2833 | int error; |
2834 | ||
d1e2cf21 BP |
2835 | error = ofputil_decode_msg_type(oh, &type); |
2836 | if (error) { | |
2837 | return error; | |
2838 | } | |
064af421 | 2839 | |
d1e2cf21 BP |
2840 | switch (ofputil_msg_type_code(type)) { |
2841 | /* OpenFlow requests. */ | |
2842 | case OFPUTIL_OFPT_ECHO_REQUEST: | |
2843 | return handle_echo_request(ofconn, oh); | |
064af421 | 2844 | |
d1e2cf21 BP |
2845 | case OFPUTIL_OFPT_FEATURES_REQUEST: |
2846 | return handle_features_request(ofconn, oh); | |
064af421 | 2847 | |
d1e2cf21 BP |
2848 | case OFPUTIL_OFPT_GET_CONFIG_REQUEST: |
2849 | return handle_get_config_request(ofconn, oh); | |
064af421 | 2850 | |
d1e2cf21 BP |
2851 | case OFPUTIL_OFPT_SET_CONFIG: |
2852 | return handle_set_config(ofconn, msg->data); | |
064af421 | 2853 | |
d1e2cf21 BP |
2854 | case OFPUTIL_OFPT_PACKET_OUT: |
2855 | return handle_packet_out(ofconn, oh); | |
064af421 | 2856 | |
d1e2cf21 BP |
2857 | case OFPUTIL_OFPT_PORT_MOD: |
2858 | return handle_port_mod(ofconn, oh); | |
064af421 | 2859 | |
d1e2cf21 | 2860 | case OFPUTIL_OFPT_FLOW_MOD: |
2e4f5fcf | 2861 | return handle_flow_mod(ofconn, oh); |
064af421 | 2862 | |
d1e2cf21 BP |
2863 | case OFPUTIL_OFPT_BARRIER_REQUEST: |
2864 | return handle_barrier_request(ofconn, oh); | |
064af421 | 2865 | |
d1e2cf21 BP |
2866 | /* OpenFlow replies. */ |
2867 | case OFPUTIL_OFPT_ECHO_REPLY: | |
2868 | return 0; | |
246e61ea | 2869 | |
d1e2cf21 | 2870 | /* Nicira extension requests. */ |
d1e2cf21 BP |
2871 | case OFPUTIL_NXT_ROLE_REQUEST: |
2872 | return handle_role_request(ofconn, oh); | |
2873 | ||
6c1491fb BP |
2874 | case OFPUTIL_NXT_FLOW_MOD_TABLE_ID: |
2875 | return handle_nxt_flow_mod_table_id(ofconn, oh); | |
d1e2cf21 BP |
2876 | |
2877 | case OFPUTIL_NXT_SET_FLOW_FORMAT: | |
2878 | return handle_nxt_set_flow_format(ofconn, oh); | |
2879 | ||
2880 | case OFPUTIL_NXT_FLOW_MOD: | |
2e4f5fcf | 2881 | return handle_flow_mod(ofconn, oh); |
d1e2cf21 | 2882 | |
349adfb2 | 2883 | /* Statistics requests. */ |
d1e2cf21 | 2884 | case OFPUTIL_OFPST_DESC_REQUEST: |
63f2140a | 2885 | return handle_desc_stats_request(ofconn, msg->data); |
d1e2cf21 BP |
2886 | |
2887 | case OFPUTIL_OFPST_FLOW_REQUEST: | |
349adfb2 | 2888 | case OFPUTIL_NXST_FLOW_REQUEST: |
63f2140a | 2889 | return handle_flow_stats_request(ofconn, msg->data); |
d1e2cf21 BP |
2890 | |
2891 | case OFPUTIL_OFPST_AGGREGATE_REQUEST: | |
76c93b22 | 2892 | case OFPUTIL_NXST_AGGREGATE_REQUEST: |
63f2140a | 2893 | return handle_aggregate_stats_request(ofconn, msg->data); |
d1e2cf21 BP |
2894 | |
2895 | case OFPUTIL_OFPST_TABLE_REQUEST: | |
63f2140a | 2896 | return handle_table_stats_request(ofconn, msg->data); |
d1e2cf21 BP |
2897 | |
2898 | case OFPUTIL_OFPST_PORT_REQUEST: | |
63f2140a | 2899 | return handle_port_stats_request(ofconn, msg->data); |
d1e2cf21 BP |
2900 | |
2901 | case OFPUTIL_OFPST_QUEUE_REQUEST: | |
63f2140a | 2902 | return handle_queue_stats_request(ofconn, msg->data); |
d1e2cf21 | 2903 | |
8f93e93c | 2904 | case OFPUTIL_MSG_INVALID: |
d1e2cf21 BP |
2905 | case OFPUTIL_OFPT_HELLO: |
2906 | case OFPUTIL_OFPT_ERROR: | |
2907 | case OFPUTIL_OFPT_FEATURES_REPLY: | |
2908 | case OFPUTIL_OFPT_GET_CONFIG_REPLY: | |
2909 | case OFPUTIL_OFPT_PACKET_IN: | |
2910 | case OFPUTIL_OFPT_FLOW_REMOVED: | |
2911 | case OFPUTIL_OFPT_PORT_STATUS: | |
2912 | case OFPUTIL_OFPT_BARRIER_REPLY: | |
2913 | case OFPUTIL_OFPT_QUEUE_GET_CONFIG_REQUEST: | |
2914 | case OFPUTIL_OFPT_QUEUE_GET_CONFIG_REPLY: | |
2915 | case OFPUTIL_OFPST_DESC_REPLY: | |
2916 | case OFPUTIL_OFPST_FLOW_REPLY: | |
2917 | case OFPUTIL_OFPST_QUEUE_REPLY: | |
2918 | case OFPUTIL_OFPST_PORT_REPLY: | |
2919 | case OFPUTIL_OFPST_TABLE_REPLY: | |
2920 | case OFPUTIL_OFPST_AGGREGATE_REPLY: | |
d1e2cf21 BP |
2921 | case OFPUTIL_NXT_ROLE_REPLY: |
2922 | case OFPUTIL_NXT_FLOW_REMOVED: | |
2923 | case OFPUTIL_NXST_FLOW_REPLY: | |
2924 | case OFPUTIL_NXST_AGGREGATE_REPLY: | |
064af421 | 2925 | default: |
d1e2cf21 BP |
2926 | if (oh->type == OFPT_STATS_REQUEST || oh->type == OFPT_STATS_REPLY) { |
2927 | return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_BAD_STAT); | |
2928 | } else { | |
2929 | return ofp_mkerr(OFPET_BAD_REQUEST, OFPBRC_BAD_TYPE); | |
2930 | } | |
064af421 | 2931 | } |
d1e2cf21 | 2932 | } |
064af421 | 2933 | |
7ee20df1 | 2934 | static bool |
d1e2cf21 BP |
2935 | handle_openflow(struct ofconn *ofconn, struct ofpbuf *ofp_msg) |
2936 | { | |
2937 | int error = handle_openflow__(ofconn, ofp_msg); | |
7ee20df1 | 2938 | if (error && error != OFPROTO_POSTPONE) { |
1be5ff75 | 2939 | ofconn_send_error(ofconn, ofp_msg->data, error); |
064af421 | 2940 | } |
d1e2cf21 | 2941 | COVERAGE_INC(ofproto_recv_openflow); |
7ee20df1 BP |
2942 | return error != OFPROTO_POSTPONE; |
2943 | } | |
2944 | \f | |
2945 | /* Asynchronous operations. */ | |
2946 | ||
2947 | /* Creates and returns a new ofopgroup that is not associated with any | |
2948 | * OpenFlow connection. | |
2949 | * | |
2950 | * The caller should add operations to the returned group with | |
2951 | * ofoperation_create() and then submit it with ofopgroup_submit(). */ | |
2952 | static struct ofopgroup * | |
7024dffe | 2953 | ofopgroup_create_unattached(struct ofproto *ofproto) |
7ee20df1 BP |
2954 | { |
2955 | struct ofopgroup *group = xzalloc(sizeof *group); | |
2956 | group->ofproto = ofproto; | |
2957 | list_init(&group->ofproto_node); | |
2958 | list_init(&group->ops); | |
2959 | list_init(&group->ofconn_node); | |
2960 | return group; | |
2961 | } | |
2962 | ||
7024dffe BP |
2963 | /* Creates and returns a new ofopgroup for 'ofproto'. |
2964 | * | |
2965 | * If 'ofconn' is NULL, the new ofopgroup is not associated with any OpenFlow | |
2966 | * connection. The 'request' and 'buffer_id' arguments are ignored. | |
2967 | * | |
2968 | * If 'ofconn' is nonnull, then the new ofopgroup is associated with 'ofconn'. | |
2969 | * If the ofopgroup eventually fails, then the error reply will include | |
2970 | * 'request'. If the ofopgroup eventually succeeds, then the packet with | |
2971 | * buffer id 'buffer_id' on 'ofconn' will be sent by 'ofconn''s ofproto. | |
7ee20df1 BP |
2972 | * |
2973 | * The caller should add operations to the returned group with | |
2974 | * ofoperation_create() and then submit it with ofopgroup_submit(). */ | |
2975 | static struct ofopgroup * | |
7024dffe BP |
2976 | ofopgroup_create(struct ofproto *ofproto, struct ofconn *ofconn, |
2977 | const struct ofp_header *request, uint32_t buffer_id) | |
7ee20df1 | 2978 | { |
7024dffe BP |
2979 | struct ofopgroup *group = ofopgroup_create_unattached(ofproto); |
2980 | if (ofconn) { | |
2981 | size_t request_len = ntohs(request->length); | |
7ee20df1 | 2982 | |
7024dffe | 2983 | assert(ofconn_get_ofproto(ofconn) == ofproto); |
7ee20df1 | 2984 | |
7024dffe BP |
2985 | ofconn_add_opgroup(ofconn, &group->ofconn_node); |
2986 | group->ofconn = ofconn; | |
2987 | group->request = xmemdup(request, MIN(request_len, 64)); | |
2988 | group->buffer_id = buffer_id; | |
2989 | } | |
7ee20df1 BP |
2990 | return group; |
2991 | } | |
2992 | ||
2993 | /* Submits 'group' for processing. | |
2994 | * | |
2995 | * If 'group' contains no operations (e.g. none were ever added, or all of the | |
2996 | * ones that were added completed synchronously), then it is destroyed | |
2997 | * immediately. Otherwise it is added to the ofproto's list of pending | |
2998 | * groups. */ | |
2999 | static void | |
3000 | ofopgroup_submit(struct ofopgroup *group) | |
3001 | { | |
3002 | if (list_is_empty(&group->ops)) { | |
3003 | ofopgroup_destroy(group); | |
3004 | } else { | |
3005 | list_push_back(&group->ofproto->pending, &group->ofproto_node); | |
dd5616b3 | 3006 | group->ofproto->n_pending++; |
7ee20df1 BP |
3007 | } |
3008 | } | |
3009 | ||
3010 | static void | |
3011 | ofopgroup_destroy(struct ofopgroup *group) | |
3012 | { | |
3013 | assert(list_is_empty(&group->ops)); | |
3014 | if (!list_is_empty(&group->ofproto_node)) { | |
dd5616b3 BP |
3015 | assert(group->ofproto->n_pending > 0); |
3016 | group->ofproto->n_pending--; | |
7ee20df1 BP |
3017 | list_remove(&group->ofproto_node); |
3018 | } | |
3019 | if (!list_is_empty(&group->ofconn_node)) { | |
3020 | list_remove(&group->ofconn_node); | |
3021 | if (group->error) { | |
3022 | ofconn_send_error(group->ofconn, group->request, group->error); | |
3023 | } | |
3024 | connmgr_retry(group->ofproto->connmgr); | |
3025 | } | |
3026 | free(group->request); | |
3027 | free(group); | |
3028 | } | |
3029 | ||
3030 | /* Initiates a new operation on 'rule', of the specified 'type', within | |
3031 | * 'group'. Prior to calling, 'rule' must not have any pending operation. */ | |
3032 | static void | |
3033 | ofoperation_create(struct ofopgroup *group, struct rule *rule, | |
3034 | enum ofoperation_type type) | |
3035 | { | |
3036 | struct ofoperation *op; | |
3037 | ||
3038 | assert(!rule->pending); | |
3039 | ||
3040 | op = rule->pending = xzalloc(sizeof *op); | |
3041 | op->group = group; | |
3042 | list_push_back(&group->ops, &op->group_node); | |
3043 | op->rule = rule; | |
3044 | op->type = type; | |
3045 | op->status = -1; | |
3046 | op->flow_cookie = rule->flow_cookie; | |
3047 | ||
3048 | if (type == OFOPERATION_DELETE) { | |
3049 | hmap_insert(&op->group->ofproto->deletions, &op->hmap_node, | |
3050 | cls_rule_hash(&rule->cr, rule->table_id)); | |
3051 | } | |
3052 | } | |
3053 | ||
3054 | static void | |
3055 | ofoperation_destroy(struct ofoperation *op) | |
3056 | { | |
3057 | struct ofopgroup *group = op->group; | |
3058 | ||
3059 | if (op->rule) { | |
3060 | op->rule->pending = NULL; | |
3061 | } | |
3062 | if (op->type == OFOPERATION_DELETE) { | |
3063 | hmap_remove(&group->ofproto->deletions, &op->hmap_node); | |
3064 | } | |
3065 | list_remove(&op->group_node); | |
3066 | free(op->actions); | |
3067 | free(op); | |
3068 | ||
3069 | if (list_is_empty(&group->ops) && !list_is_empty(&group->ofproto_node)) { | |
3070 | ofopgroup_destroy(group); | |
3071 | } | |
3072 | } | |
3073 | ||
3074 | /* Indicates that 'op' completed with status 'error', which is either 0 to | |
3075 | * indicate success or an OpenFlow error code (constructed with | |
3076 | * e.g. ofp_mkerr()). | |
3077 | * | |
a6a62132 BP |
3078 | * If 'error' is 0, indicating success, the operation will be committed |
3079 | * permanently to the flow table. There is one interesting subcase: | |
3080 | * | |
3081 | * - If 'op' is an "add flow" operation that is replacing an existing rule in | |
3082 | * the flow table (the "victim" rule) by a new one, then the caller must | |
3083 | * have uninitialized any derived state in the victim rule, as in step 5 in | |
3084 | * the "Life Cycle" in ofproto/ofproto-provider.h. ofoperation_complete() | |
3085 | * performs steps 6 and 7 for the victim rule, most notably by calling its | |
3086 | * ->rule_dealloc() function. | |
3087 | * | |
3088 | * If 'error' is nonzero, then generally the operation will be rolled back: | |
3089 | * | |
3090 | * - If 'op' is an "add flow" operation, ofproto removes the new rule or | |
3091 | * restores the original rule. The caller must have uninitialized any | |
3092 | * derived state in the new rule, as in step 5 of in the "Life Cycle" in | |
3093 | * ofproto/ofproto-provider.h. ofoperation_complete() performs steps 6 and | |
3094 | * and 7 for the new rule, calling its ->rule_dealloc() function. | |
3095 | * | |
3096 | * - If 'op' is a "modify flow" operation, ofproto restores the original | |
3097 | * actions. | |
3098 | * | |
3099 | * - 'op' must not be a "delete flow" operation. Removing a rule is not | |
3100 | * allowed to fail. It must always succeed. | |
7ee20df1 | 3101 | * |
5bee6e26 JP |
3102 | * Please see the large comment in ofproto/ofproto-provider.h titled |
3103 | * "Asynchronous Operation Support" for more information. */ | |
7ee20df1 BP |
3104 | void |
3105 | ofoperation_complete(struct ofoperation *op, int error) | |
3106 | { | |
3107 | struct ofopgroup *group = op->group; | |
3108 | struct rule *rule = op->rule; | |
52a90c29 BP |
3109 | struct ofproto *ofproto = rule->ofproto; |
3110 | struct classifier *table = &ofproto->tables[rule->table_id]; | |
7ee20df1 BP |
3111 | |
3112 | assert(rule->pending == op); | |
3113 | assert(op->status < 0); | |
3114 | assert(error >= 0); | |
3115 | ||
3116 | if (!error | |
3117 | && !group->error | |
3118 | && op->type != OFOPERATION_DELETE | |
3119 | && group->ofconn | |
3120 | && group->buffer_id != UINT32_MAX | |
3121 | && list_is_singleton(&op->group_node)) { | |
3122 | struct ofpbuf *packet; | |
3123 | uint16_t in_port; | |
3124 | ||
3125 | error = ofconn_pktbuf_retrieve(group->ofconn, group->buffer_id, | |
3126 | &packet, &in_port); | |
3127 | if (packet) { | |
3128 | assert(!error); | |
3129 | error = rule_execute(rule, in_port, packet); | |
3130 | } | |
3131 | } | |
3132 | if (!group->error) { | |
3133 | group->error = error; | |
3134 | } | |
3135 | ||
3136 | switch (op->type) { | |
3137 | case OFOPERATION_ADD: | |
3138 | if (!error) { | |
3139 | if (op->victim) { | |
3140 | ofproto_rule_destroy__(op->victim); | |
3141 | } | |
52a90c29 BP |
3142 | if (!(rule->cr.wc.vlan_tci_mask & htons(VLAN_VID_MASK)) |
3143 | && ofproto->vlan_bitmap) { | |
3144 | uint16_t vid = vlan_tci_to_vid(rule->cr.flow.vlan_tci); | |
3145 | ||
3146 | if (!bitmap_is_set(ofproto->vlan_bitmap, vid)) { | |
3147 | bitmap_set1(ofproto->vlan_bitmap, vid); | |
3148 | ofproto->vlans_changed = true; | |
3149 | } | |
3150 | } | |
7ee20df1 BP |
3151 | } else { |
3152 | if (op->victim) { | |
3153 | classifier_replace(table, &op->victim->cr); | |
3154 | op->victim = NULL; | |
3155 | } else { | |
3156 | classifier_remove(table, &rule->cr); | |
3157 | } | |
3158 | ofproto_rule_destroy__(rule); | |
3159 | } | |
3160 | op->victim = NULL; | |
3161 | break; | |
3162 | ||
3163 | case OFOPERATION_DELETE: | |
3164 | assert(!error); | |
3165 | ofproto_rule_destroy__(rule); | |
3166 | op->rule = NULL; | |
3167 | break; | |
3168 | ||
3169 | case OFOPERATION_MODIFY: | |
308881af BP |
3170 | if (!error) { |
3171 | rule->modified = time_msec(); | |
3172 | } else { | |
7ee20df1 BP |
3173 | free(rule->actions); |
3174 | rule->actions = op->actions; | |
3175 | rule->n_actions = op->n_actions; | |
3176 | op->actions = NULL; | |
3177 | } | |
3178 | break; | |
3179 | ||
3180 | default: | |
3181 | NOT_REACHED(); | |
3182 | } | |
3183 | ofoperation_destroy(op); | |
3184 | } | |
3185 | ||
3186 | struct rule * | |
3187 | ofoperation_get_victim(struct ofoperation *op) | |
3188 | { | |
3189 | assert(op->type == OFOPERATION_ADD); | |
3190 | return op->victim; | |
064af421 BP |
3191 | } |
3192 | \f | |
064af421 | 3193 | static uint64_t |
fa60c019 | 3194 | pick_datapath_id(const struct ofproto *ofproto) |
064af421 | 3195 | { |
fa60c019 | 3196 | const struct ofport *port; |
064af421 | 3197 | |
abe529af | 3198 | port = ofproto_get_port(ofproto, OFPP_LOCAL); |
fa60c019 BP |
3199 | if (port) { |
3200 | uint8_t ea[ETH_ADDR_LEN]; | |
3201 | int error; | |
3202 | ||
3203 | error = netdev_get_etheraddr(port->netdev, ea); | |
064af421 BP |
3204 | if (!error) { |
3205 | return eth_addr_to_uint64(ea); | |
3206 | } | |
3207 | VLOG_WARN("could not get MAC address for %s (%s)", | |
fa60c019 | 3208 | netdev_get_name(port->netdev), strerror(error)); |
064af421 | 3209 | } |
fa60c019 | 3210 | return ofproto->fallback_dpid; |
064af421 BP |
3211 | } |
3212 | ||
3213 | static uint64_t | |
3214 | pick_fallback_dpid(void) | |
3215 | { | |
3216 | uint8_t ea[ETH_ADDR_LEN]; | |
70150daf | 3217 | eth_addr_nicira_random(ea); |
064af421 BP |
3218 | return eth_addr_to_uint64(ea); |
3219 | } | |
3220 | \f | |
abe529af | 3221 | /* unixctl commands. */ |
7aa697dd | 3222 | |
abe529af | 3223 | struct ofproto * |
2ac6bedd | 3224 | ofproto_lookup(const char *name) |
7aa697dd | 3225 | { |
2ac6bedd | 3226 | struct ofproto *ofproto; |
7aa697dd | 3227 | |
2ac6bedd BP |
3228 | HMAP_FOR_EACH_WITH_HASH (ofproto, hmap_node, hash_string(name, 0), |
3229 | &all_ofprotos) { | |
3230 | if (!strcmp(ofproto->name, name)) { | |
3231 | return ofproto; | |
3232 | } | |
7aa697dd | 3233 | } |
2ac6bedd | 3234 | return NULL; |
7aa697dd BP |
3235 | } |
3236 | ||
3237 | static void | |
7aa697dd BP |
3238 | ofproto_unixctl_list(struct unixctl_conn *conn, const char *arg OVS_UNUSED, |
3239 | void *aux OVS_UNUSED) | |
7aa697dd | 3240 | { |
7aa697dd | 3241 | struct ofproto *ofproto; |
7aa697dd | 3242 | struct ds results; |
7aa697dd | 3243 | |
7aa697dd | 3244 | ds_init(&results); |
2ac6bedd BP |
3245 | HMAP_FOR_EACH (ofproto, hmap_node, &all_ofprotos) { |
3246 | ds_put_format(&results, "%s\n", ofproto->name); | |
7aa697dd | 3247 | } |
7aa697dd BP |
3248 | unixctl_command_reply(conn, 200, ds_cstr(&results)); |
3249 | ds_destroy(&results); | |
7aa697dd BP |
3250 | } |
3251 | ||
3252 | static void | |
3253 | ofproto_unixctl_init(void) | |
3254 | { | |
3255 | static bool registered; | |
3256 | if (registered) { | |
3257 | return; | |
3258 | } | |
3259 | registered = true; | |
3260 | ||
7ff2009a | 3261 | unixctl_command_register("ofproto/list", "", ofproto_unixctl_list, NULL); |
064af421 | 3262 | } |
52a90c29 BP |
3263 | \f |
3264 | /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.) | |
3265 | * | |
3266 | * This is deprecated. It is only for compatibility with broken device drivers | |
3267 | * in old versions of Linux that do not properly support VLANs when VLAN | |
3268 | * devices are not used. When broken device drivers are no longer in | |
3269 | * widespread use, we will delete these interfaces. */ | |
3270 | ||
3271 | /* Sets a 1-bit in the 4096-bit 'vlan_bitmap' for each VLAN ID that is matched | |
3272 | * (exactly) by an OpenFlow rule in 'ofproto'. */ | |
3273 | void | |
3274 | ofproto_get_vlan_usage(struct ofproto *ofproto, unsigned long int *vlan_bitmap) | |
3275 | { | |
3276 | const struct classifier *cls; | |
3277 | ||
3278 | free(ofproto->vlan_bitmap); | |
3279 | ofproto->vlan_bitmap = bitmap_allocate(4096); | |
3280 | ofproto->vlans_changed = false; | |
3281 | ||
3282 | OFPROTO_FOR_EACH_TABLE (cls, ofproto) { | |
3283 | const struct cls_table *table; | |
3284 | ||
3285 | HMAP_FOR_EACH (table, hmap_node, &cls->tables) { | |
3286 | if (!(table->wc.vlan_tci_mask & htons(VLAN_VID_MASK))) { | |
3287 | const struct cls_rule *rule; | |
3288 | ||
3289 | HMAP_FOR_EACH (rule, hmap_node, &table->rules) { | |
3290 | uint16_t vid = vlan_tci_to_vid(rule->flow.vlan_tci); | |
3291 | bitmap_set1(vlan_bitmap, vid); | |
3292 | bitmap_set1(ofproto->vlan_bitmap, vid); | |
3293 | } | |
3294 | } | |
3295 | } | |
3296 | } | |
3297 | } | |
3298 | ||
3299 | /* Returns true if new VLANs have come into use by the flow table since the | |
3300 | * last call to ofproto_get_vlan_usage(). | |
3301 | * | |
3302 | * We don't track when old VLANs stop being used. */ | |
3303 | bool | |
3304 | ofproto_has_vlan_usage_changed(const struct ofproto *ofproto) | |
3305 | { | |
3306 | return ofproto->vlans_changed; | |
3307 | } | |
3308 | ||
3309 | /* Configures a VLAN splinter binding between the ports identified by OpenFlow | |
3310 | * port numbers 'vlandev_ofp_port' and 'realdev_ofp_port'. If | |
3311 | * 'realdev_ofp_port' is nonzero, then the VLAN device is enslaved to the real | |
3312 | * device as a VLAN splinter for VLAN ID 'vid'. If 'realdev_ofp_port' is zero, | |
3313 | * then the VLAN device is un-enslaved. */ | |
3314 | int | |
3315 | ofproto_port_set_realdev(struct ofproto *ofproto, uint16_t vlandev_ofp_port, | |
3316 | uint16_t realdev_ofp_port, int vid) | |
3317 | { | |
3318 | struct ofport *ofport; | |
3319 | int error; | |
3320 | ||
3321 | assert(vlandev_ofp_port != realdev_ofp_port); | |
3322 | ||
3323 | ofport = ofproto_get_port(ofproto, vlandev_ofp_port); | |
3324 | if (!ofport) { | |
3325 | VLOG_WARN("%s: cannot set realdev on nonexistent port %"PRIu16, | |
3326 | ofproto->name, vlandev_ofp_port); | |
3327 | return EINVAL; | |
3328 | } | |
3329 | ||
3330 | if (!ofproto->ofproto_class->set_realdev) { | |
3331 | if (!vlandev_ofp_port) { | |
3332 | return 0; | |
3333 | } | |
3334 | VLOG_WARN("%s: vlan splinters not supported", ofproto->name); | |
3335 | return EOPNOTSUPP; | |
3336 | } | |
3337 | ||
3338 | error = ofproto->ofproto_class->set_realdev(ofport, realdev_ofp_port, vid); | |
3339 | if (error) { | |
3340 | VLOG_WARN("%s: setting realdev on port %"PRIu16" (%s) failed (%s)", | |
3341 | ofproto->name, vlandev_ofp_port, | |
3342 | netdev_get_name(ofport->netdev), strerror(error)); | |
3343 | } | |
3344 | return error; | |
3345 | } |