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064af421 | 1 | /* |
cb22974d | 2 | * Copyright (c) 2009, 2010, 2011, 2012, 2013 Nicira, Inc. |
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> | |
448a4b2f | 24 | #include <unistd.h> |
52a90c29 | 25 | #include "bitmap.h" |
10a24935 | 26 | #include "byte-order.h" |
064af421 | 27 | #include "classifier.h" |
19a87e36 | 28 | #include "connmgr.h" |
064af421 | 29 | #include "coverage.h" |
4f2cad2c | 30 | #include "dynamic-string.h" |
ca0f572c BP |
31 | #include "hash.h" |
32 | #include "hmap.h" | |
254750ce | 33 | #include "meta-flow.h" |
064af421 | 34 | #include "netdev.h" |
09246b99 | 35 | #include "nx-match.h" |
f25d0cf3 | 36 | #include "ofp-actions.h" |
90bf1e07 | 37 | #include "ofp-errors.h" |
982697a4 | 38 | #include "ofp-msgs.h" |
064af421 | 39 | #include "ofp-print.h" |
fa37b408 | 40 | #include "ofp-util.h" |
064af421 | 41 | #include "ofpbuf.h" |
5bee6e26 | 42 | #include "ofproto-provider.h" |
064af421 BP |
43 | #include "openflow/nicira-ext.h" |
44 | #include "openflow/openflow.h" | |
064af421 BP |
45 | #include "packets.h" |
46 | #include "pinsched.h" | |
47 | #include "pktbuf.h" | |
48 | #include "poll-loop.h" | |
254750ce | 49 | #include "random.h" |
064af421 | 50 | #include "shash.h" |
0d085684 | 51 | #include "simap.h" |
b3c01ed3 | 52 | #include "sset.h" |
064af421 | 53 | #include "timeval.h" |
c4617b3c | 54 | #include "unaligned.h" |
4f2cad2c | 55 | #include "unixctl.h" |
5136ce49 | 56 | #include "vlog.h" |
064af421 | 57 | |
d98e6007 | 58 | VLOG_DEFINE_THIS_MODULE(ofproto); |
064af421 | 59 | |
d76f09ea | 60 | COVERAGE_DEFINE(ofproto_error); |
d76f09ea | 61 | COVERAGE_DEFINE(ofproto_flush); |
d76f09ea | 62 | COVERAGE_DEFINE(ofproto_no_packet_in); |
d76f09ea BP |
63 | COVERAGE_DEFINE(ofproto_packet_out); |
64 | COVERAGE_DEFINE(ofproto_queue_req); | |
65 | COVERAGE_DEFINE(ofproto_recv_openflow); | |
66 | COVERAGE_DEFINE(ofproto_reinit_ports); | |
d76f09ea BP |
67 | COVERAGE_DEFINE(ofproto_uninstallable); |
68 | COVERAGE_DEFINE(ofproto_update_port); | |
69 | ||
7ee20df1 BP |
70 | enum ofproto_state { |
71 | S_OPENFLOW, /* Processing OpenFlow commands. */ | |
254750ce | 72 | S_EVICT, /* Evicting flows from over-limit tables. */ |
7ee20df1 BP |
73 | S_FLUSH, /* Deleting all flow table rules. */ |
74 | }; | |
75 | ||
76 | enum ofoperation_type { | |
77 | OFOPERATION_ADD, | |
78 | OFOPERATION_DELETE, | |
b277c7cc BP |
79 | OFOPERATION_MODIFY, |
80 | OFOPERATION_REPLACE | |
7ee20df1 BP |
81 | }; |
82 | ||
83 | /* A single OpenFlow request can execute any number of operations. The | |
84 | * ofopgroup maintain OpenFlow state common to all of the operations, e.g. the | |
85 | * ofconn to which an error reply should be sent if necessary. | |
86 | * | |
87 | * ofproto initiates some operations internally. These operations are still | |
88 | * assigned to groups but will not have an associated ofconn. */ | |
89 | struct ofopgroup { | |
90 | struct ofproto *ofproto; /* Owning ofproto. */ | |
91 | struct list ofproto_node; /* In ofproto's "pending" list. */ | |
92 | struct list ops; /* List of "struct ofoperation"s. */ | |
e615b0a3 | 93 | int n_running; /* Number of ops still pending. */ |
7ee20df1 BP |
94 | |
95 | /* Data needed to send OpenFlow reply on failure or to send a buffered | |
96 | * packet on success. | |
97 | * | |
98 | * If list_is_empty(ofconn_node) then this ofopgroup never had an | |
99 | * associated ofconn or its ofconn's connection dropped after it initiated | |
100 | * the operation. In the latter case 'ofconn' is a wild pointer that | |
101 | * refers to freed memory, so the 'ofconn' member must be used only if | |
102 | * !list_is_empty(ofconn_node). | |
103 | */ | |
104 | struct list ofconn_node; /* In ofconn's list of pending opgroups. */ | |
105 | struct ofconn *ofconn; /* ofconn for reply (but see note above). */ | |
106 | struct ofp_header *request; /* Original request (truncated at 64 bytes). */ | |
107 | uint32_t buffer_id; /* Buffer id from original request. */ | |
7ee20df1 BP |
108 | }; |
109 | ||
7024dffe BP |
110 | static struct ofopgroup *ofopgroup_create_unattached(struct ofproto *); |
111 | static struct ofopgroup *ofopgroup_create(struct ofproto *, struct ofconn *, | |
112 | const struct ofp_header *, | |
113 | uint32_t buffer_id); | |
7ee20df1 | 114 | static void ofopgroup_submit(struct ofopgroup *); |
e615b0a3 | 115 | static void ofopgroup_complete(struct ofopgroup *); |
7ee20df1 BP |
116 | |
117 | /* A single flow table operation. */ | |
118 | struct ofoperation { | |
119 | struct ofopgroup *group; /* Owning group. */ | |
120 | struct list group_node; /* In ofopgroup's "ops" list. */ | |
121 | struct hmap_node hmap_node; /* In ofproto's "deletions" hmap. */ | |
122 | struct rule *rule; /* Rule being operated upon. */ | |
123 | enum ofoperation_type type; /* Type of operation. */ | |
08043761 | 124 | |
b277c7cc BP |
125 | /* OFOPERATION_MODIFY, OFOPERATION_REPLACE: The old actions, if the actions |
126 | * are changing. */ | |
08043761 BP |
127 | struct ofpact *ofpacts; |
128 | size_t ofpacts_len; | |
9cae45dc | 129 | uint32_t meter_id; |
08043761 | 130 | |
2b07c8b1 BP |
131 | /* OFOPERATION_DELETE. */ |
132 | enum ofp_flow_removed_reason reason; /* Reason flow was removed. */ | |
133 | ||
7ee20df1 | 134 | ovs_be64 flow_cookie; /* Rule's old flow cookie. */ |
b277c7cc BP |
135 | uint16_t idle_timeout; /* Rule's old idle timeout. */ |
136 | uint16_t hard_timeout; /* Rule's old hard timeout. */ | |
137 | bool send_flow_removed; /* Rule's old 'send_flow_removed'. */ | |
e615b0a3 | 138 | enum ofperr error; /* 0 if no error. */ |
7ee20df1 BP |
139 | }; |
140 | ||
a7d94793 BP |
141 | static struct ofoperation *ofoperation_create(struct ofopgroup *, |
142 | struct rule *, | |
2b07c8b1 BP |
143 | enum ofoperation_type, |
144 | enum ofp_flow_removed_reason); | |
7ee20df1 BP |
145 | static void ofoperation_destroy(struct ofoperation *); |
146 | ||
d0918789 BP |
147 | /* oftable. */ |
148 | static void oftable_init(struct oftable *); | |
149 | static void oftable_destroy(struct oftable *); | |
878ae780 | 150 | |
254750ce BP |
151 | static void oftable_set_name(struct oftable *, const char *name); |
152 | ||
153 | static void oftable_disable_eviction(struct oftable *); | |
154 | static void oftable_enable_eviction(struct oftable *, | |
155 | const struct mf_subfield *fields, | |
156 | size_t n_fields); | |
157 | ||
884e1dc4 | 158 | static void oftable_remove_rule(struct rule *rule) OVS_RELEASES(rule->rwlock); |
0b4f2078 EJ |
159 | static void oftable_remove_rule__(struct ofproto *ofproto, |
160 | struct classifier *cls, struct rule *rule) | |
884e1dc4 | 161 | OVS_REQ_WRLOCK(cls->rwlock) OVS_RELEASES(rule->rwlock); |
b277c7cc | 162 | static void oftable_insert_rule(struct rule *); |
064af421 | 163 | |
254750ce BP |
164 | /* A set of rules within a single OpenFlow table (oftable) that have the same |
165 | * values for the oftable's eviction_fields. A rule to be evicted, when one is | |
166 | * needed, is taken from the eviction group that contains the greatest number | |
167 | * of rules. | |
168 | * | |
169 | * An oftable owns any number of eviction groups, each of which contains any | |
170 | * number of rules. | |
171 | * | |
172 | * Membership in an eviction group is imprecise, based on the hash of the | |
173 | * oftable's eviction_fields (in the eviction_group's id_node.hash member). | |
174 | * That is, if two rules have different eviction_fields, but those | |
175 | * eviction_fields hash to the same value, then they will belong to the same | |
176 | * eviction_group anyway. | |
177 | * | |
178 | * (When eviction is not enabled on an oftable, we don't track any eviction | |
179 | * groups, to save time and space.) */ | |
180 | struct eviction_group { | |
181 | struct hmap_node id_node; /* In oftable's "eviction_groups_by_id". */ | |
182 | struct heap_node size_node; /* In oftable's "eviction_groups_by_size". */ | |
183 | struct heap rules; /* Contains "struct rule"s. */ | |
184 | }; | |
185 | ||
ad3efdcb | 186 | static bool choose_rule_to_evict(struct oftable *table, struct rule **rulep) |
884e1dc4 | 187 | OVS_TRY_WRLOCK(true, (*rulep)->rwlock); |
254750ce BP |
188 | static void ofproto_evict(struct ofproto *); |
189 | static uint32_t rule_eviction_priority(struct rule *); | |
b277c7cc BP |
190 | static void eviction_group_add_rule(struct rule *); |
191 | static void eviction_group_remove_rule(struct rule *); | |
f29152ca | 192 | |
d0918789 BP |
193 | /* ofport. */ |
194 | static void ofport_destroy__(struct ofport *); | |
195 | static void ofport_destroy(struct ofport *); | |
196 | ||
197 | static void update_port(struct ofproto *, const char *devname); | |
198 | static int init_ports(struct ofproto *); | |
199 | static void reinit_ports(struct ofproto *); | |
7ee20df1 | 200 | |
254750ce BP |
201 | /* rule. */ |
202 | static void ofproto_rule_destroy__(struct rule *); | |
203 | static void ofproto_rule_send_removed(struct rule *, uint8_t reason); | |
204 | static bool rule_is_modifiable(const struct rule *); | |
254750ce | 205 | |
d0918789 | 206 | /* OpenFlow. */ |
90bf1e07 | 207 | static enum ofperr add_flow(struct ofproto *, struct ofconn *, |
e3b56933 | 208 | struct ofputil_flow_mod *, |
90bf1e07 | 209 | const struct ofp_header *); |
b277c7cc BP |
210 | static enum ofperr modify_flows__(struct ofproto *, struct ofconn *, |
211 | struct ofputil_flow_mod *, | |
212 | const struct ofp_header *, struct list *); | |
ad3efdcb EJ |
213 | static void delete_flow__(struct rule *rule, struct ofopgroup *, |
214 | enum ofp_flow_removed_reason) | |
884e1dc4 | 215 | OVS_RELEASES(rule->rwlock); |
7395c052 | 216 | static enum ofperr add_group(struct ofproto *, struct ofputil_group_mod *); |
e03248b7 | 217 | static bool handle_openflow(struct ofconn *, const struct ofpbuf *); |
90bf1e07 | 218 | static enum ofperr handle_flow_mod__(struct ofproto *, struct ofconn *, |
e3b56933 | 219 | struct ofputil_flow_mod *, |
d0918789 | 220 | const struct ofp_header *); |
65e0be10 BP |
221 | static void calc_duration(long long int start, long long int now, |
222 | uint32_t *sec, uint32_t *nsec); | |
f29152ca | 223 | |
d0918789 BP |
224 | /* ofproto. */ |
225 | static uint64_t pick_datapath_id(const struct ofproto *); | |
226 | static uint64_t pick_fallback_dpid(void); | |
227 | static void ofproto_destroy__(struct ofproto *); | |
ada3428f | 228 | static void update_mtu(struct ofproto *, struct ofport *); |
6b3f7f02 | 229 | static void meter_delete(struct ofproto *, uint32_t first, uint32_t last); |
f29152ca | 230 | |
d0918789 | 231 | /* unixctl. */ |
abe529af | 232 | static void ofproto_unixctl_init(void); |
f29152ca | 233 | |
abe529af BP |
234 | /* All registered ofproto classes, in probe order. */ |
235 | static const struct ofproto_class **ofproto_classes; | |
236 | static size_t n_ofproto_classes; | |
237 | static size_t allocated_ofproto_classes; | |
7aa697dd | 238 | |
380f49c4 | 239 | unsigned flow_eviction_threshold = OFPROTO_FLOW_EVICTION_THRESHOLD_DEFAULT; |
448a4b2f | 240 | unsigned n_handler_threads; |
7155fa52 | 241 | enum ofproto_flow_miss_model flow_miss_model = OFPROTO_HANDLE_MISS_AUTO; |
380f49c4 | 242 | |
f797957a | 243 | /* Map from datapath name to struct ofproto, for use by unixctl commands. */ |
abe529af | 244 | static struct hmap all_ofprotos = HMAP_INITIALIZER(&all_ofprotos); |
ebe482fd | 245 | |
e1b1d06a JP |
246 | /* Initial mappings of port to OpenFlow number mappings. */ |
247 | static struct shash init_ofp_ports = SHASH_INITIALIZER(&init_ofp_ports); | |
248 | ||
abe529af | 249 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); |
f29152ca | 250 | |
40358701 GS |
251 | /* The default value of true waits for flow restore. */ |
252 | static bool flow_restore_wait = true; | |
253 | ||
b0408fca JP |
254 | /* Must be called to initialize the ofproto library. |
255 | * | |
256 | * The caller may pass in 'iface_hints', which contains an shash of | |
257 | * "iface_hint" elements indexed by the interface's name. The provider | |
258 | * may use these hints to describe the startup configuration in order to | |
259 | * reinitialize its state. The caller owns the provided data, so a | |
260 | * provider will make copies of anything required. An ofproto provider | |
261 | * will remove any existing state that is not described by the hint, and | |
262 | * may choose to remove it all. */ | |
263 | void | |
264 | ofproto_init(const struct shash *iface_hints) | |
abe529af | 265 | { |
e1b1d06a | 266 | struct shash_node *node; |
b0408fca | 267 | size_t i; |
f29152ca | 268 | |
b0408fca JP |
269 | ofproto_class_register(&ofproto_dpif_class); |
270 | ||
e1b1d06a JP |
271 | /* Make a local copy, since we don't own 'iface_hints' elements. */ |
272 | SHASH_FOR_EACH(node, iface_hints) { | |
273 | const struct iface_hint *orig_hint = node->data; | |
274 | struct iface_hint *new_hint = xmalloc(sizeof *new_hint); | |
275 | const char *br_type = ofproto_normalize_type(orig_hint->br_type); | |
276 | ||
277 | new_hint->br_name = xstrdup(orig_hint->br_name); | |
278 | new_hint->br_type = xstrdup(br_type); | |
279 | new_hint->ofp_port = orig_hint->ofp_port; | |
280 | ||
281 | shash_add(&init_ofp_ports, node->name, new_hint); | |
282 | } | |
283 | ||
b0408fca | 284 | for (i = 0; i < n_ofproto_classes; i++) { |
e1b1d06a | 285 | ofproto_classes[i]->init(&init_ofp_ports); |
abe529af BP |
286 | } |
287 | } | |
f29152ca | 288 | |
abe529af BP |
289 | /* 'type' should be a normalized datapath type, as returned by |
290 | * ofproto_normalize_type(). Returns the corresponding ofproto_class | |
291 | * structure, or a null pointer if there is none registered for 'type'. */ | |
292 | static const struct ofproto_class * | |
293 | ofproto_class_find__(const char *type) | |
294 | { | |
295 | size_t i; | |
f29152ca | 296 | |
abe529af BP |
297 | for (i = 0; i < n_ofproto_classes; i++) { |
298 | const struct ofproto_class *class = ofproto_classes[i]; | |
299 | struct sset types; | |
300 | bool found; | |
064af421 | 301 | |
abe529af BP |
302 | sset_init(&types); |
303 | class->enumerate_types(&types); | |
304 | found = sset_contains(&types, type); | |
305 | sset_destroy(&types); | |
bcf84111 | 306 | |
abe529af BP |
307 | if (found) { |
308 | return class; | |
309 | } | |
310 | } | |
311 | VLOG_WARN("unknown datapath type %s", type); | |
312 | return NULL; | |
313 | } | |
064af421 | 314 | |
abe529af BP |
315 | /* Registers a new ofproto class. After successful registration, new ofprotos |
316 | * of that type can be created using ofproto_create(). */ | |
317 | int | |
318 | ofproto_class_register(const struct ofproto_class *new_class) | |
319 | { | |
320 | size_t i; | |
7aa697dd | 321 | |
abe529af BP |
322 | for (i = 0; i < n_ofproto_classes; i++) { |
323 | if (ofproto_classes[i] == new_class) { | |
324 | return EEXIST; | |
325 | } | |
326 | } | |
064af421 | 327 | |
abe529af BP |
328 | if (n_ofproto_classes >= allocated_ofproto_classes) { |
329 | ofproto_classes = x2nrealloc(ofproto_classes, | |
330 | &allocated_ofproto_classes, | |
331 | sizeof *ofproto_classes); | |
332 | } | |
333 | ofproto_classes[n_ofproto_classes++] = new_class; | |
334 | return 0; | |
335 | } | |
064af421 | 336 | |
abe529af BP |
337 | /* Unregisters a datapath provider. 'type' must have been previously |
338 | * registered and not currently be in use by any ofprotos. After | |
339 | * unregistration new datapaths of that type cannot be opened using | |
340 | * ofproto_create(). */ | |
341 | int | |
342 | ofproto_class_unregister(const struct ofproto_class *class) | |
343 | { | |
344 | size_t i; | |
76ce9432 | 345 | |
abe529af BP |
346 | for (i = 0; i < n_ofproto_classes; i++) { |
347 | if (ofproto_classes[i] == class) { | |
348 | for (i++; i < n_ofproto_classes; i++) { | |
349 | ofproto_classes[i - 1] = ofproto_classes[i]; | |
350 | } | |
351 | n_ofproto_classes--; | |
352 | return 0; | |
353 | } | |
354 | } | |
355 | VLOG_WARN("attempted to unregister an ofproto class that is not " | |
356 | "registered"); | |
357 | return EAFNOSUPPORT; | |
358 | } | |
4a4cdb3b | 359 | |
f79e673f BP |
360 | /* Clears 'types' and enumerates all registered ofproto types into it. The |
361 | * caller must first initialize the sset. */ | |
362 | void | |
363 | ofproto_enumerate_types(struct sset *types) | |
364 | { | |
abe529af | 365 | size_t i; |
064af421 | 366 | |
abe529af BP |
367 | for (i = 0; i < n_ofproto_classes; i++) { |
368 | ofproto_classes[i]->enumerate_types(types); | |
369 | } | |
f79e673f | 370 | } |
064af421 | 371 | |
f79e673f BP |
372 | /* Returns the fully spelled out name for the given ofproto 'type'. |
373 | * | |
374 | * Normalized type string can be compared with strcmp(). Unnormalized type | |
375 | * string might be the same even if they have different spellings. */ | |
376 | const char * | |
377 | ofproto_normalize_type(const char *type) | |
378 | { | |
abe529af | 379 | return type && type[0] ? type : "system"; |
f79e673f | 380 | } |
064af421 | 381 | |
f79e673f BP |
382 | /* Clears 'names' and enumerates the names of all known created ofprotos with |
383 | * the given 'type'. The caller must first initialize the sset. Returns 0 if | |
384 | * successful, otherwise a positive errno value. | |
385 | * | |
386 | * Some kinds of datapaths might not be practically enumerable. This is not | |
387 | * considered an error. */ | |
388 | int | |
389 | ofproto_enumerate_names(const char *type, struct sset *names) | |
390 | { | |
abe529af BP |
391 | const struct ofproto_class *class = ofproto_class_find__(type); |
392 | return class ? class->enumerate_names(type, names) : EAFNOSUPPORT; | |
393 | } | |
7aa697dd | 394 | |
064af421 | 395 | int |
abe529af | 396 | ofproto_create(const char *datapath_name, const char *datapath_type, |
064af421 BP |
397 | struct ofproto **ofprotop) |
398 | { | |
abe529af BP |
399 | const struct ofproto_class *class; |
400 | struct ofproto *ofproto; | |
064af421 | 401 | int error; |
c2f0373a | 402 | int i; |
064af421 BP |
403 | |
404 | *ofprotop = NULL; | |
405 | ||
7aa697dd BP |
406 | ofproto_unixctl_init(); |
407 | ||
abe529af BP |
408 | datapath_type = ofproto_normalize_type(datapath_type); |
409 | class = ofproto_class_find__(datapath_type); | |
410 | if (!class) { | |
411 | VLOG_WARN("could not create datapath %s of unknown type %s", | |
412 | datapath_name, datapath_type); | |
413 | return EAFNOSUPPORT; | |
064af421 BP |
414 | } |
415 | ||
abe529af BP |
416 | ofproto = class->alloc(); |
417 | if (!ofproto) { | |
418 | VLOG_ERR("failed to allocate datapath %s of type %s", | |
419 | datapath_name, datapath_type); | |
420 | return ENOMEM; | |
421 | } | |
422 | ||
423 | /* Initialize. */ | |
424 | memset(ofproto, 0, sizeof *ofproto); | |
425 | ofproto->ofproto_class = class; | |
426 | ofproto->name = xstrdup(datapath_name); | |
427 | ofproto->type = xstrdup(datapath_type); | |
428 | hmap_insert(&all_ofprotos, &ofproto->hmap_node, | |
429 | hash_string(ofproto->name, 0)); | |
430 | ofproto->datapath_id = 0; | |
8402c74b | 431 | ofproto->forward_bpdu = false; |
abe529af | 432 | ofproto->fallback_dpid = pick_fallback_dpid(); |
061bfea4 BP |
433 | ofproto->mfr_desc = NULL; |
434 | ofproto->hw_desc = NULL; | |
435 | ofproto->sw_desc = NULL; | |
436 | ofproto->serial_desc = NULL; | |
437 | ofproto->dp_desc = NULL; | |
7257b535 | 438 | ofproto->frag_handling = OFPC_FRAG_NORMAL; |
abe529af BP |
439 | hmap_init(&ofproto->ports); |
440 | shash_init(&ofproto->port_by_name); | |
e1b1d06a | 441 | simap_init(&ofproto->ofp_requests); |
430dbb14 | 442 | ofproto->max_ports = ofp_to_u16(OFPP_MAX); |
448c2fa8 | 443 | ofproto->eviction_group_timer = LLONG_MIN; |
6c1491fb BP |
444 | ofproto->tables = NULL; |
445 | ofproto->n_tables = 0; | |
98eaac36 | 446 | hindex_init(&ofproto->cookies); |
e503cc19 | 447 | list_init(&ofproto->expirable); |
834d6caf | 448 | ovs_mutex_init_recursive(&ofproto->expirable_mutex); |
abe529af | 449 | ofproto->connmgr = connmgr_create(ofproto, datapath_name, datapath_name); |
7ee20df1 BP |
450 | ofproto->state = S_OPENFLOW; |
451 | list_init(&ofproto->pending); | |
dd5616b3 | 452 | ofproto->n_pending = 0; |
7ee20df1 | 453 | hmap_init(&ofproto->deletions); |
a5b8d268 BP |
454 | ofproto->n_add = ofproto->n_delete = ofproto->n_modify = 0; |
455 | ofproto->first_op = ofproto->last_op = LLONG_MIN; | |
456 | ofproto->next_op_report = LLONG_MAX; | |
457 | ofproto->op_backoff = LLONG_MIN; | |
52a90c29 BP |
458 | ofproto->vlan_bitmap = NULL; |
459 | ofproto->vlans_changed = false; | |
ada3428f | 460 | ofproto->min_mtu = INT_MAX; |
7395c052 NZ |
461 | ovs_rwlock_init(&ofproto->groups_rwlock); |
462 | hmap_init(&ofproto->groups); | |
abe529af | 463 | |
0f5f95a9 | 464 | error = ofproto->ofproto_class->construct(ofproto); |
19a87e36 | 465 | if (error) { |
abe529af | 466 | VLOG_ERR("failed to open datapath %s: %s", |
10a89ef0 | 467 | datapath_name, ovs_strerror(error)); |
abe529af | 468 | ofproto_destroy__(ofproto); |
19a87e36 BP |
469 | return error; |
470 | } | |
073e2a6f | 471 | |
e1b1d06a JP |
472 | /* The "max_ports" member should have been set by ->construct(ofproto). |
473 | * Port 0 is not a valid OpenFlow port, so mark that as unavailable. */ | |
430dbb14 | 474 | ofproto->ofp_port_ids = bitmap_allocate(ofproto->max_ports); |
e1b1d06a JP |
475 | bitmap_set1(ofproto->ofp_port_ids, 0); |
476 | ||
c2f0373a | 477 | /* Check that hidden tables, if any, are at the end. */ |
cb22974d | 478 | ovs_assert(ofproto->n_tables); |
c2f0373a BP |
479 | for (i = 0; i + 1 < ofproto->n_tables; i++) { |
480 | enum oftable_flags flags = ofproto->tables[i].flags; | |
481 | enum oftable_flags next_flags = ofproto->tables[i + 1].flags; | |
482 | ||
cb22974d | 483 | ovs_assert(!(flags & OFTABLE_HIDDEN) || next_flags & OFTABLE_HIDDEN); |
c2f0373a | 484 | } |
19a87e36 | 485 | |
abe529af | 486 | ofproto->datapath_id = pick_datapath_id(ofproto); |
abe529af | 487 | init_ports(ofproto); |
7aa697dd | 488 | |
9cae45dc JR |
489 | /* Initialize meters table. */ |
490 | if (ofproto->ofproto_class->meter_get_features) { | |
491 | ofproto->ofproto_class->meter_get_features(ofproto, | |
492 | &ofproto->meter_features); | |
493 | } else { | |
494 | memset(&ofproto->meter_features, 0, sizeof ofproto->meter_features); | |
495 | } | |
496 | ofproto->meters = xzalloc((ofproto->meter_features.max_meters + 1) | |
497 | * sizeof(struct meter *)); | |
498 | ||
abe529af | 499 | *ofprotop = ofproto; |
064af421 BP |
500 | return 0; |
501 | } | |
502 | ||
91858960 BP |
503 | /* Must be called (only) by an ofproto implementation in its constructor |
504 | * function. See the large comment on 'construct' in struct ofproto_class for | |
505 | * details. */ | |
0f5f95a9 BP |
506 | void |
507 | ofproto_init_tables(struct ofproto *ofproto, int n_tables) | |
508 | { | |
509 | struct oftable *table; | |
510 | ||
cb22974d BP |
511 | ovs_assert(!ofproto->n_tables); |
512 | ovs_assert(n_tables >= 1 && n_tables <= 255); | |
0f5f95a9 BP |
513 | |
514 | ofproto->n_tables = n_tables; | |
515 | ofproto->tables = xmalloc(n_tables * sizeof *ofproto->tables); | |
516 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { | |
517 | oftable_init(table); | |
518 | } | |
519 | } | |
520 | ||
91858960 BP |
521 | /* To be optionally called (only) by an ofproto implementation in its |
522 | * constructor function. See the large comment on 'construct' in struct | |
523 | * ofproto_class for details. | |
524 | * | |
525 | * Sets the maximum number of ports to 'max_ports'. The ofproto generic layer | |
526 | * will then ensure that actions passed into the ofproto implementation will | |
527 | * not refer to OpenFlow ports numbered 'max_ports' or higher. If this | |
528 | * function is not called, there will be no such restriction. | |
529 | * | |
530 | * Reserved ports numbered OFPP_MAX and higher are special and not subject to | |
531 | * the 'max_ports' restriction. */ | |
532 | void | |
430dbb14 | 533 | ofproto_init_max_ports(struct ofproto *ofproto, uint16_t max_ports) |
91858960 | 534 | { |
430dbb14 | 535 | ovs_assert(max_ports <= ofp_to_u16(OFPP_MAX)); |
91858960 BP |
536 | ofproto->max_ports = max_ports; |
537 | } | |
538 | ||
e825ace2 BP |
539 | uint64_t |
540 | ofproto_get_datapath_id(const struct ofproto *ofproto) | |
541 | { | |
542 | return ofproto->datapath_id; | |
543 | } | |
544 | ||
064af421 BP |
545 | void |
546 | ofproto_set_datapath_id(struct ofproto *p, uint64_t datapath_id) | |
547 | { | |
548 | uint64_t old_dpid = p->datapath_id; | |
fa60c019 | 549 | p->datapath_id = datapath_id ? datapath_id : pick_datapath_id(p); |
064af421 | 550 | if (p->datapath_id != old_dpid) { |
76ce9432 BP |
551 | /* Force all active connections to reconnect, since there is no way to |
552 | * notify a controller that the datapath ID has changed. */ | |
fa05809b | 553 | ofproto_reconnect_controllers(p); |
064af421 BP |
554 | } |
555 | } | |
556 | ||
76ce9432 BP |
557 | void |
558 | ofproto_set_controllers(struct ofproto *p, | |
559 | const struct ofproto_controller *controllers, | |
1d9ffc17 | 560 | size_t n_controllers, uint32_t allowed_versions) |
76ce9432 | 561 | { |
1d9ffc17 SH |
562 | connmgr_set_controllers(p->connmgr, controllers, n_controllers, |
563 | allowed_versions); | |
064af421 BP |
564 | } |
565 | ||
31681a5d JP |
566 | void |
567 | ofproto_set_fail_mode(struct ofproto *p, enum ofproto_fail_mode fail_mode) | |
568 | { | |
19a87e36 | 569 | connmgr_set_fail_mode(p->connmgr, fail_mode); |
31681a5d JP |
570 | } |
571 | ||
fa05809b BP |
572 | /* Drops the connections between 'ofproto' and all of its controllers, forcing |
573 | * them to reconnect. */ | |
574 | void | |
575 | ofproto_reconnect_controllers(struct ofproto *ofproto) | |
576 | { | |
19a87e36 | 577 | connmgr_reconnect(ofproto->connmgr); |
917e50e1 BP |
578 | } |
579 | ||
580 | /* Sets the 'n' TCP port addresses in 'extras' as ones to which 'ofproto''s | |
581 | * in-band control should guarantee access, in the same way that in-band | |
582 | * control guarantees access to OpenFlow controllers. */ | |
583 | void | |
584 | ofproto_set_extra_in_band_remotes(struct ofproto *ofproto, | |
585 | const struct sockaddr_in *extras, size_t n) | |
586 | { | |
19a87e36 | 587 | connmgr_set_extra_in_band_remotes(ofproto->connmgr, extras, n); |
917e50e1 BP |
588 | } |
589 | ||
b1da6250 BP |
590 | /* Sets the OpenFlow queue used by flows set up by in-band control on |
591 | * 'ofproto' to 'queue_id'. If 'queue_id' is negative, then in-band control | |
592 | * flows will use the default queue. */ | |
593 | void | |
594 | ofproto_set_in_band_queue(struct ofproto *ofproto, int queue_id) | |
595 | { | |
19a87e36 | 596 | connmgr_set_in_band_queue(ofproto->connmgr, queue_id); |
b1da6250 BP |
597 | } |
598 | ||
084f5290 SH |
599 | /* Sets the number of flows at which eviction from the kernel flow table |
600 | * will occur. */ | |
601 | void | |
380f49c4 | 602 | ofproto_set_flow_eviction_threshold(unsigned threshold) |
084f5290 | 603 | { |
380f49c4 EJ |
604 | flow_eviction_threshold = MAX(OFPROTO_FLOW_EVICTION_THRESHOLD_MIN, |
605 | threshold); | |
084f5290 SH |
606 | } |
607 | ||
7155fa52 JS |
608 | /* Sets the path for handling flow misses. */ |
609 | void | |
610 | ofproto_set_flow_miss_model(unsigned model) | |
611 | { | |
612 | flow_miss_model = model; | |
613 | } | |
614 | ||
b53055f4 | 615 | /* If forward_bpdu is true, the NORMAL action will forward frames with |
8402c74b SS |
616 | * reserved (e.g. STP) destination Ethernet addresses. if forward_bpdu is false, |
617 | * the NORMAL action will drop these frames. */ | |
618 | void | |
619 | ofproto_set_forward_bpdu(struct ofproto *ofproto, bool forward_bpdu) | |
620 | { | |
621 | bool old_val = ofproto->forward_bpdu; | |
622 | ofproto->forward_bpdu = forward_bpdu; | |
623 | if (old_val != ofproto->forward_bpdu) { | |
624 | if (ofproto->ofproto_class->forward_bpdu_changed) { | |
625 | ofproto->ofproto_class->forward_bpdu_changed(ofproto); | |
626 | } | |
b53055f4 | 627 | } |
8402c74b SS |
628 | } |
629 | ||
e764773c | 630 | /* Sets the MAC aging timeout for the OFPP_NORMAL action on 'ofproto' to |
c4069512 BP |
631 | * 'idle_time', in seconds, and the maximum number of MAC table entries to |
632 | * 'max_entries'. */ | |
e764773c | 633 | void |
c4069512 BP |
634 | ofproto_set_mac_table_config(struct ofproto *ofproto, unsigned idle_time, |
635 | size_t max_entries) | |
e764773c | 636 | { |
c4069512 BP |
637 | if (ofproto->ofproto_class->set_mac_table_config) { |
638 | ofproto->ofproto_class->set_mac_table_config(ofproto, idle_time, | |
639 | max_entries); | |
e764773c BP |
640 | } |
641 | } | |
642 | ||
448a4b2f AW |
643 | /* Sets number of upcall handler threads. The default is |
644 | * (number of online cores - 1). */ | |
645 | void | |
646 | ofproto_set_n_handler_threads(unsigned limit) | |
647 | { | |
648 | if (limit) { | |
649 | n_handler_threads = limit; | |
650 | } else { | |
651 | n_handler_threads = MAX(1, sysconf(_SC_NPROCESSORS_ONLN) - 1); | |
652 | } | |
653 | } | |
654 | ||
8b6ff729 BP |
655 | void |
656 | ofproto_set_dp_desc(struct ofproto *p, const char *dp_desc) | |
657 | { | |
658 | free(p->dp_desc); | |
659 | p->dp_desc = dp_desc ? xstrdup(dp_desc) : NULL; | |
660 | } | |
661 | ||
064af421 | 662 | int |
81e2083f | 663 | ofproto_set_snoops(struct ofproto *ofproto, const struct sset *snoops) |
064af421 | 664 | { |
19a87e36 | 665 | return connmgr_set_snoops(ofproto->connmgr, snoops); |
064af421 BP |
666 | } |
667 | ||
668 | int | |
0193b2af JG |
669 | ofproto_set_netflow(struct ofproto *ofproto, |
670 | const struct netflow_options *nf_options) | |
064af421 | 671 | { |
abe529af BP |
672 | if (nf_options && sset_is_empty(&nf_options->collectors)) { |
673 | nf_options = NULL; | |
674 | } | |
675 | ||
676 | if (ofproto->ofproto_class->set_netflow) { | |
677 | return ofproto->ofproto_class->set_netflow(ofproto, nf_options); | |
064af421 | 678 | } else { |
abe529af | 679 | return nf_options ? EOPNOTSUPP : 0; |
064af421 BP |
680 | } |
681 | } | |
682 | ||
abe529af | 683 | int |
72b06300 BP |
684 | ofproto_set_sflow(struct ofproto *ofproto, |
685 | const struct ofproto_sflow_options *oso) | |
686 | { | |
abe529af BP |
687 | if (oso && sset_is_empty(&oso->targets)) { |
688 | oso = NULL; | |
689 | } | |
72b06300 | 690 | |
abe529af BP |
691 | if (ofproto->ofproto_class->set_sflow) { |
692 | return ofproto->ofproto_class->set_sflow(ofproto, oso); | |
72b06300 | 693 | } else { |
abe529af | 694 | return oso ? EOPNOTSUPP : 0; |
72b06300 BP |
695 | } |
696 | } | |
29089a54 RL |
697 | |
698 | int | |
699 | ofproto_set_ipfix(struct ofproto *ofproto, | |
700 | const struct ofproto_ipfix_bridge_exporter_options *bo, | |
701 | const struct ofproto_ipfix_flow_exporter_options *fo, | |
702 | size_t n_fo) | |
703 | { | |
704 | if (ofproto->ofproto_class->set_ipfix) { | |
705 | return ofproto->ofproto_class->set_ipfix(ofproto, bo, fo, n_fo); | |
706 | } else { | |
707 | return (bo || fo) ? EOPNOTSUPP : 0; | |
708 | } | |
709 | } | |
40358701 GS |
710 | |
711 | void | |
712 | ofproto_set_flow_restore_wait(bool flow_restore_wait_db) | |
713 | { | |
714 | flow_restore_wait = flow_restore_wait_db; | |
715 | } | |
716 | ||
717 | bool | |
718 | ofproto_get_flow_restore_wait(void) | |
719 | { | |
720 | return flow_restore_wait; | |
721 | } | |
722 | ||
e7934396 | 723 | \f |
21f7563c JP |
724 | /* Spanning Tree Protocol (STP) configuration. */ |
725 | ||
726 | /* Configures STP on 'ofproto' using the settings defined in 's'. If | |
727 | * 's' is NULL, disables STP. | |
728 | * | |
729 | * Returns 0 if successful, otherwise a positive errno value. */ | |
730 | int | |
731 | ofproto_set_stp(struct ofproto *ofproto, | |
732 | const struct ofproto_stp_settings *s) | |
733 | { | |
734 | return (ofproto->ofproto_class->set_stp | |
735 | ? ofproto->ofproto_class->set_stp(ofproto, s) | |
736 | : EOPNOTSUPP); | |
737 | } | |
738 | ||
739 | /* Retrieves STP status of 'ofproto' and stores it in 's'. If the | |
740 | * 'enabled' member of 's' is false, then the other members are not | |
741 | * meaningful. | |
742 | * | |
743 | * Returns 0 if successful, otherwise a positive errno value. */ | |
744 | int | |
745 | ofproto_get_stp_status(struct ofproto *ofproto, | |
746 | struct ofproto_stp_status *s) | |
747 | { | |
748 | return (ofproto->ofproto_class->get_stp_status | |
749 | ? ofproto->ofproto_class->get_stp_status(ofproto, s) | |
750 | : EOPNOTSUPP); | |
751 | } | |
752 | ||
753 | /* Configures STP on 'ofp_port' of 'ofproto' using the settings defined | |
754 | * in 's'. The caller is responsible for assigning STP port numbers | |
755 | * (using the 'port_num' member in the range of 1 through 255, inclusive) | |
756 | * and ensuring there are no duplicates. If the 's' is NULL, then STP | |
757 | * is disabled on the port. | |
758 | * | |
759 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
760 | int | |
4e022ec0 | 761 | ofproto_port_set_stp(struct ofproto *ofproto, ofp_port_t ofp_port, |
21f7563c JP |
762 | const struct ofproto_port_stp_settings *s) |
763 | { | |
764 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
765 | if (!ofport) { | |
766 | VLOG_WARN("%s: cannot configure STP on nonexistent port %"PRIu16, | |
767 | ofproto->name, ofp_port); | |
768 | return ENODEV; | |
769 | } | |
770 | ||
771 | return (ofproto->ofproto_class->set_stp_port | |
772 | ? ofproto->ofproto_class->set_stp_port(ofport, s) | |
773 | : EOPNOTSUPP); | |
774 | } | |
775 | ||
776 | /* Retrieves STP port status of 'ofp_port' on 'ofproto' and stores it in | |
777 | * 's'. If the 'enabled' member in 's' is false, then the other members | |
778 | * are not meaningful. | |
779 | * | |
780 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
781 | int | |
4e022ec0 | 782 | ofproto_port_get_stp_status(struct ofproto *ofproto, ofp_port_t ofp_port, |
21f7563c JP |
783 | struct ofproto_port_stp_status *s) |
784 | { | |
785 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
786 | if (!ofport) { | |
b0a5c43b JP |
787 | VLOG_WARN_RL(&rl, "%s: cannot get STP status on nonexistent " |
788 | "port %"PRIu16, ofproto->name, ofp_port); | |
21f7563c JP |
789 | return ENODEV; |
790 | } | |
791 | ||
792 | return (ofproto->ofproto_class->get_stp_port_status | |
793 | ? ofproto->ofproto_class->get_stp_port_status(ofport, s) | |
794 | : EOPNOTSUPP); | |
795 | } | |
796 | \f | |
8b36f51e EJ |
797 | /* Queue DSCP configuration. */ |
798 | ||
799 | /* Registers meta-data associated with the 'n_qdscp' Qualities of Service | |
800 | * 'queues' attached to 'ofport'. This data is not intended to be sufficient | |
801 | * to implement QoS. Instead, it is used to implement features which require | |
802 | * knowledge of what queues exist on a port, and some basic information about | |
803 | * them. | |
804 | * | |
805 | * Returns 0 if successful, otherwise a positive errno value. */ | |
806 | int | |
4e022ec0 | 807 | ofproto_port_set_queues(struct ofproto *ofproto, ofp_port_t ofp_port, |
8b36f51e EJ |
808 | const struct ofproto_port_queue *queues, |
809 | size_t n_queues) | |
810 | { | |
811 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
812 | ||
813 | if (!ofport) { | |
814 | VLOG_WARN("%s: cannot set queues on nonexistent port %"PRIu16, | |
815 | ofproto->name, ofp_port); | |
816 | return ENODEV; | |
817 | } | |
818 | ||
819 | return (ofproto->ofproto_class->set_queues | |
820 | ? ofproto->ofproto_class->set_queues(ofport, queues, n_queues) | |
821 | : EOPNOTSUPP); | |
822 | } | |
823 | \f | |
e7934396 BP |
824 | /* Connectivity Fault Management configuration. */ |
825 | ||
892815f5 | 826 | /* Clears the CFM configuration from 'ofp_port' on 'ofproto'. */ |
e7934396 | 827 | void |
4e022ec0 | 828 | ofproto_port_clear_cfm(struct ofproto *ofproto, ofp_port_t ofp_port) |
e7934396 | 829 | { |
abe529af BP |
830 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
831 | if (ofport && ofproto->ofproto_class->set_cfm) { | |
a5610457 | 832 | ofproto->ofproto_class->set_cfm(ofport, NULL); |
e7934396 BP |
833 | } |
834 | } | |
72b06300 | 835 | |
892815f5 | 836 | /* Configures connectivity fault management on 'ofp_port' in 'ofproto'. Takes |
93b8df38 EJ |
837 | * basic configuration from the configuration members in 'cfm', and the remote |
838 | * maintenance point ID from remote_mpid. Ignores the statistics members of | |
839 | * 'cfm'. | |
e7934396 | 840 | * |
892815f5 | 841 | * This function has no effect if 'ofproto' does not have a port 'ofp_port'. */ |
e7934396 | 842 | void |
4e022ec0 | 843 | ofproto_port_set_cfm(struct ofproto *ofproto, ofp_port_t ofp_port, |
a5610457 | 844 | const struct cfm_settings *s) |
e7934396 BP |
845 | { |
846 | struct ofport *ofport; | |
abe529af | 847 | int error; |
e7934396 | 848 | |
abe529af | 849 | ofport = ofproto_get_port(ofproto, ofp_port); |
e7934396 | 850 | if (!ofport) { |
892815f5 BP |
851 | VLOG_WARN("%s: cannot configure CFM on nonexistent port %"PRIu16, |
852 | ofproto->name, ofp_port); | |
e7934396 BP |
853 | return; |
854 | } | |
855 | ||
93b8df38 EJ |
856 | /* XXX: For configuration simplicity, we only support one remote_mpid |
857 | * outside of the CFM module. It's not clear if this is the correct long | |
858 | * term solution or not. */ | |
abe529af | 859 | error = (ofproto->ofproto_class->set_cfm |
a5610457 | 860 | ? ofproto->ofproto_class->set_cfm(ofport, s) |
abe529af BP |
861 | : EOPNOTSUPP); |
862 | if (error) { | |
863 | VLOG_WARN("%s: CFM configuration on port %"PRIu16" (%s) failed (%s)", | |
864 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), | |
10a89ef0 | 865 | ovs_strerror(error)); |
e7934396 | 866 | } |
e7934396 | 867 | } |
e7934396 | 868 | |
ccc09689 EJ |
869 | /* Configures BFD on 'ofp_port' in 'ofproto'. This function has no effect if |
870 | * 'ofproto' does not have a port 'ofp_port'. */ | |
871 | void | |
4e022ec0 | 872 | ofproto_port_set_bfd(struct ofproto *ofproto, ofp_port_t ofp_port, |
ccc09689 EJ |
873 | const struct smap *cfg) |
874 | { | |
875 | struct ofport *ofport; | |
876 | int error; | |
877 | ||
878 | ofport = ofproto_get_port(ofproto, ofp_port); | |
879 | if (!ofport) { | |
880 | VLOG_WARN("%s: cannot configure bfd on nonexistent port %"PRIu16, | |
881 | ofproto->name, ofp_port); | |
e8999bdc | 882 | return; |
ccc09689 EJ |
883 | } |
884 | ||
885 | error = (ofproto->ofproto_class->set_bfd | |
886 | ? ofproto->ofproto_class->set_bfd(ofport, cfg) | |
887 | : EOPNOTSUPP); | |
888 | if (error) { | |
889 | VLOG_WARN("%s: bfd configuration on port %"PRIu16" (%s) failed (%s)", | |
890 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), | |
10a89ef0 | 891 | ovs_strerror(error)); |
ccc09689 EJ |
892 | } |
893 | } | |
894 | ||
895 | /* Populates 'status' with key value pairs indicating the status of the BFD | |
896 | * session on 'ofp_port'. This information is intended to be populated in the | |
897 | * OVS database. Has no effect if 'ofp_port' is not na OpenFlow port in | |
898 | * 'ofproto'. */ | |
899 | int | |
4e022ec0 | 900 | ofproto_port_get_bfd_status(struct ofproto *ofproto, ofp_port_t ofp_port, |
ccc09689 EJ |
901 | struct smap *status) |
902 | { | |
903 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
904 | return (ofport && ofproto->ofproto_class->get_bfd_status | |
905 | ? ofproto->ofproto_class->get_bfd_status(ofport, status) | |
906 | : EOPNOTSUPP); | |
907 | } | |
908 | ||
fa066f01 BP |
909 | /* Checks the status of LACP negotiation for 'ofp_port' within ofproto. |
910 | * Returns 1 if LACP partner information for 'ofp_port' is up-to-date, | |
911 | * 0 if LACP partner information is not current (generally indicating a | |
912 | * connectivity problem), or -1 if LACP is not enabled on 'ofp_port'. */ | |
913 | int | |
4e022ec0 | 914 | ofproto_port_is_lacp_current(struct ofproto *ofproto, ofp_port_t ofp_port) |
fa066f01 | 915 | { |
abe529af BP |
916 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
917 | return (ofport && ofproto->ofproto_class->port_is_lacp_current | |
918 | ? ofproto->ofproto_class->port_is_lacp_current(ofport) | |
fa066f01 | 919 | : -1); |
e7934396 | 920 | } |
e7934396 | 921 | \f |
fa066f01 | 922 | /* Bundles. */ |
e7934396 | 923 | |
abe529af BP |
924 | /* Registers a "bundle" associated with client data pointer 'aux' in 'ofproto'. |
925 | * A bundle is the same concept as a Port in OVSDB, that is, it consists of one | |
926 | * or more "slave" devices (Interfaces, in OVSDB) along with a VLAN | |
927 | * configuration plus, if there is more than one slave, a bonding | |
928 | * configuration. | |
929 | * | |
930 | * If 'aux' is already registered then this function updates its configuration | |
931 | * to 's'. Otherwise, this function registers a new bundle. | |
932 | * | |
933 | * Bundles only affect the NXAST_AUTOPATH action and output to the OFPP_NORMAL | |
934 | * port. */ | |
935 | int | |
936 | ofproto_bundle_register(struct ofproto *ofproto, void *aux, | |
937 | const struct ofproto_bundle_settings *s) | |
fa066f01 | 938 | { |
abe529af BP |
939 | return (ofproto->ofproto_class->bundle_set |
940 | ? ofproto->ofproto_class->bundle_set(ofproto, aux, s) | |
941 | : EOPNOTSUPP); | |
fa066f01 BP |
942 | } |
943 | ||
abe529af BP |
944 | /* Unregisters the bundle registered on 'ofproto' with auxiliary data 'aux'. |
945 | * If no such bundle has been registered, this has no effect. */ | |
946 | int | |
947 | ofproto_bundle_unregister(struct ofproto *ofproto, void *aux) | |
e7934396 | 948 | { |
abe529af | 949 | return ofproto_bundle_register(ofproto, aux, NULL); |
e7934396 | 950 | } |
fa066f01 | 951 | |
e7934396 | 952 | \f |
abe529af BP |
953 | /* Registers a mirror associated with client data pointer 'aux' in 'ofproto'. |
954 | * If 'aux' is already registered then this function updates its configuration | |
c06bba01 | 955 | * to 's'. Otherwise, this function registers a new mirror. */ |
abe529af BP |
956 | int |
957 | ofproto_mirror_register(struct ofproto *ofproto, void *aux, | |
958 | const struct ofproto_mirror_settings *s) | |
064af421 | 959 | { |
abe529af BP |
960 | return (ofproto->ofproto_class->mirror_set |
961 | ? ofproto->ofproto_class->mirror_set(ofproto, aux, s) | |
962 | : EOPNOTSUPP); | |
064af421 BP |
963 | } |
964 | ||
abe529af BP |
965 | /* Unregisters the mirror registered on 'ofproto' with auxiliary data 'aux'. |
966 | * If no mirror has been registered, this has no effect. */ | |
967 | int | |
968 | ofproto_mirror_unregister(struct ofproto *ofproto, void *aux) | |
064af421 | 969 | { |
abe529af | 970 | return ofproto_mirror_register(ofproto, aux, NULL); |
064af421 BP |
971 | } |
972 | ||
9d24de3b JP |
973 | /* Retrieves statistics from mirror associated with client data pointer |
974 | * 'aux' in 'ofproto'. Stores packet and byte counts in 'packets' and | |
975 | * 'bytes', respectively. If a particular counters is not supported, | |
976 | * the appropriate argument is set to UINT64_MAX. */ | |
977 | int | |
978 | ofproto_mirror_get_stats(struct ofproto *ofproto, void *aux, | |
979 | uint64_t *packets, uint64_t *bytes) | |
980 | { | |
981 | if (!ofproto->ofproto_class->mirror_get_stats) { | |
982 | *packets = *bytes = UINT64_MAX; | |
983 | return EOPNOTSUPP; | |
984 | } | |
985 | ||
986 | return ofproto->ofproto_class->mirror_get_stats(ofproto, aux, | |
987 | packets, bytes); | |
988 | } | |
989 | ||
abe529af BP |
990 | /* Configures the VLANs whose bits are set to 1 in 'flood_vlans' as VLANs on |
991 | * which all packets are flooded, instead of using MAC learning. If | |
992 | * 'flood_vlans' is NULL, then MAC learning applies to all VLANs. | |
993 | * | |
994 | * Flood VLANs affect only the treatment of packets output to the OFPP_NORMAL | |
995 | * port. */ | |
996 | int | |
997 | ofproto_set_flood_vlans(struct ofproto *ofproto, unsigned long *flood_vlans) | |
abdfe474 | 998 | { |
abe529af BP |
999 | return (ofproto->ofproto_class->set_flood_vlans |
1000 | ? ofproto->ofproto_class->set_flood_vlans(ofproto, flood_vlans) | |
1001 | : EOPNOTSUPP); | |
abdfe474 JP |
1002 | } |
1003 | ||
abe529af BP |
1004 | /* Returns true if 'aux' is a registered bundle that is currently in use as the |
1005 | * output for a mirror. */ | |
1006 | bool | |
b4affc74 | 1007 | ofproto_is_mirror_output_bundle(const struct ofproto *ofproto, void *aux) |
abe529af BP |
1008 | { |
1009 | return (ofproto->ofproto_class->is_mirror_output_bundle | |
1010 | ? ofproto->ofproto_class->is_mirror_output_bundle(ofproto, aux) | |
1011 | : false); | |
1012 | } | |
1013 | \f | |
254750ce BP |
1014 | /* Configuration of OpenFlow tables. */ |
1015 | ||
1016 | /* Returns the number of OpenFlow tables in 'ofproto'. */ | |
1017 | int | |
1018 | ofproto_get_n_tables(const struct ofproto *ofproto) | |
1019 | { | |
1020 | return ofproto->n_tables; | |
1021 | } | |
1022 | ||
1023 | /* Configures the OpenFlow table in 'ofproto' with id 'table_id' with the | |
1024 | * settings from 's'. 'table_id' must be in the range 0 through the number of | |
1025 | * OpenFlow tables in 'ofproto' minus 1, inclusive. | |
1026 | * | |
1027 | * For read-only tables, only the name may be configured. */ | |
1028 | void | |
1029 | ofproto_configure_table(struct ofproto *ofproto, int table_id, | |
1030 | const struct ofproto_table_settings *s) | |
1031 | { | |
1032 | struct oftable *table; | |
1033 | ||
cb22974d | 1034 | ovs_assert(table_id >= 0 && table_id < ofproto->n_tables); |
254750ce BP |
1035 | table = &ofproto->tables[table_id]; |
1036 | ||
1037 | oftable_set_name(table, s->name); | |
1038 | ||
1039 | if (table->flags & OFTABLE_READONLY) { | |
1040 | return; | |
1041 | } | |
1042 | ||
1043 | if (s->groups) { | |
1044 | oftable_enable_eviction(table, s->groups, s->n_groups); | |
1045 | } else { | |
1046 | oftable_disable_eviction(table); | |
1047 | } | |
1048 | ||
1049 | table->max_flows = s->max_flows; | |
0b4f2078 | 1050 | ovs_rwlock_rdlock(&table->cls.rwlock); |
254750ce BP |
1051 | if (classifier_count(&table->cls) > table->max_flows |
1052 | && table->eviction_fields) { | |
1053 | /* 'table' contains more flows than allowed. We might not be able to | |
1054 | * evict them right away because of the asynchronous nature of flow | |
1055 | * table changes. Schedule eviction for later. */ | |
1056 | switch (ofproto->state) { | |
1057 | case S_OPENFLOW: | |
1058 | ofproto->state = S_EVICT; | |
1059 | break; | |
1060 | case S_EVICT: | |
1061 | case S_FLUSH: | |
1062 | /* We're already deleting flows, nothing more to do. */ | |
1063 | break; | |
1064 | } | |
1065 | } | |
0b4f2078 | 1066 | ovs_rwlock_unlock(&table->cls.rwlock); |
254750ce BP |
1067 | } |
1068 | \f | |
81e2083f BP |
1069 | bool |
1070 | ofproto_has_snoops(const struct ofproto *ofproto) | |
1071 | { | |
1072 | return connmgr_has_snoops(ofproto->connmgr); | |
1073 | } | |
1074 | ||
064af421 | 1075 | void |
81e2083f | 1076 | ofproto_get_snoops(const struct ofproto *ofproto, struct sset *snoops) |
064af421 | 1077 | { |
19a87e36 | 1078 | connmgr_get_snoops(ofproto->connmgr, snoops); |
064af421 BP |
1079 | } |
1080 | ||
8037acb4 BP |
1081 | /* Deletes 'rule' from 'cls' within 'ofproto'. |
1082 | * | |
1083 | * The 'cls' argument is redundant (it is &ofproto->tables[rule->table_id].cls) | |
1084 | * but it allows Clang to do better checking. */ | |
7ee20df1 | 1085 | static void |
8037acb4 BP |
1086 | ofproto_delete_rule(struct ofproto *ofproto, struct classifier *cls, |
1087 | struct rule *rule) | |
1088 | OVS_REQ_WRLOCK(cls->rwlock) | |
7ee20df1 | 1089 | { |
7ee20df1 | 1090 | struct ofopgroup *group; |
8037acb4 BP |
1091 | |
1092 | ovs_assert(!rule->pending); | |
1093 | ovs_assert(cls == &ofproto->tables[rule->table_id].cls); | |
1094 | ||
1095 | group = ofopgroup_create_unattached(ofproto); | |
1096 | ofoperation_create(group, rule, OFOPERATION_DELETE, OFPRR_DELETE); | |
884e1dc4 | 1097 | ovs_rwlock_wrlock(&rule->rwlock); |
8037acb4 BP |
1098 | oftable_remove_rule__(ofproto, cls, rule); |
1099 | ofproto->ofproto_class->rule_delete(rule); | |
1100 | ofopgroup_submit(group); | |
1101 | } | |
1102 | ||
1103 | static void | |
1104 | ofproto_flush__(struct ofproto *ofproto) | |
1105 | { | |
d0918789 | 1106 | struct oftable *table; |
7ee20df1 BP |
1107 | |
1108 | if (ofproto->ofproto_class->flush) { | |
1109 | ofproto->ofproto_class->flush(ofproto); | |
1110 | } | |
1111 | ||
b772ded8 | 1112 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
7ee20df1 BP |
1113 | struct rule *rule, *next_rule; |
1114 | struct cls_cursor cursor; | |
1115 | ||
5c67e4af BP |
1116 | if (table->flags & OFTABLE_HIDDEN) { |
1117 | continue; | |
1118 | } | |
1119 | ||
0b4f2078 | 1120 | ovs_rwlock_wrlock(&table->cls.rwlock); |
d0918789 | 1121 | cls_cursor_init(&cursor, &table->cls, NULL); |
7ee20df1 BP |
1122 | CLS_CURSOR_FOR_EACH_SAFE (rule, next_rule, cr, &cursor) { |
1123 | if (!rule->pending) { | |
8037acb4 | 1124 | ofproto_delete_rule(ofproto, &table->cls, rule); |
7ee20df1 BP |
1125 | } |
1126 | } | |
0b4f2078 | 1127 | ovs_rwlock_unlock(&table->cls.rwlock); |
7ee20df1 | 1128 | } |
7ee20df1 BP |
1129 | } |
1130 | ||
7395c052 NZ |
1131 | static void delete_group(struct ofproto *ofproto, uint32_t group_id); |
1132 | ||
abe529af BP |
1133 | static void |
1134 | ofproto_destroy__(struct ofproto *ofproto) | |
1135 | { | |
d0918789 | 1136 | struct oftable *table; |
6c1491fb | 1137 | |
cb22974d BP |
1138 | ovs_assert(list_is_empty(&ofproto->pending)); |
1139 | ovs_assert(!ofproto->n_pending); | |
7ee20df1 | 1140 | |
6b3f7f02 JR |
1141 | if (ofproto->meters) { |
1142 | meter_delete(ofproto, 1, ofproto->meter_features.max_meters); | |
1143 | free(ofproto->meters); | |
1144 | } | |
1145 | ||
7395c052 NZ |
1146 | delete_group(ofproto, OFPG_ALL); |
1147 | ovs_rwlock_destroy(&ofproto->groups_rwlock); | |
1148 | hmap_destroy(&ofproto->groups); | |
1149 | ||
abe529af | 1150 | connmgr_destroy(ofproto->connmgr); |
fa066f01 | 1151 | |
abe529af BP |
1152 | hmap_remove(&all_ofprotos, &ofproto->hmap_node); |
1153 | free(ofproto->name); | |
955a7127 | 1154 | free(ofproto->type); |
abe529af BP |
1155 | free(ofproto->mfr_desc); |
1156 | free(ofproto->hw_desc); | |
1157 | free(ofproto->sw_desc); | |
1158 | free(ofproto->serial_desc); | |
1159 | free(ofproto->dp_desc); | |
abe529af BP |
1160 | hmap_destroy(&ofproto->ports); |
1161 | shash_destroy(&ofproto->port_by_name); | |
e1b1d06a JP |
1162 | bitmap_free(ofproto->ofp_port_ids); |
1163 | simap_destroy(&ofproto->ofp_requests); | |
6c1491fb | 1164 | |
b772ded8 | 1165 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
d0918789 | 1166 | oftable_destroy(table); |
6c1491fb BP |
1167 | } |
1168 | free(ofproto->tables); | |
fa066f01 | 1169 | |
7ee20df1 BP |
1170 | hmap_destroy(&ofproto->deletions); |
1171 | ||
52a90c29 BP |
1172 | free(ofproto->vlan_bitmap); |
1173 | ||
83b16b98 | 1174 | ovs_mutex_destroy(&ofproto->expirable_mutex); |
abe529af BP |
1175 | ofproto->ofproto_class->dealloc(ofproto); |
1176 | } | |
fa066f01 | 1177 | |
064af421 BP |
1178 | void |
1179 | ofproto_destroy(struct ofproto *p) | |
1180 | { | |
ca0f572c | 1181 | struct ofport *ofport, *next_ofport; |
064af421 BP |
1182 | |
1183 | if (!p) { | |
1184 | return; | |
1185 | } | |
1186 | ||
7ee20df1 | 1187 | ofproto_flush__(p); |
4e8e4213 | 1188 | HMAP_FOR_EACH_SAFE (ofport, next_ofport, hmap_node, &p->ports) { |
abe529af | 1189 | ofport_destroy(ofport); |
064af421 | 1190 | } |
064af421 | 1191 | |
abe529af BP |
1192 | p->ofproto_class->destruct(p); |
1193 | ofproto_destroy__(p); | |
064af421 BP |
1194 | } |
1195 | ||
abe529af BP |
1196 | /* Destroys the datapath with the respective 'name' and 'type'. With the Linux |
1197 | * kernel datapath, for example, this destroys the datapath in the kernel, and | |
1198 | * with the netdev-based datapath, it tears down the data structures that | |
1199 | * represent the datapath. | |
1200 | * | |
1201 | * The datapath should not be currently open as an ofproto. */ | |
064af421 | 1202 | int |
abe529af | 1203 | ofproto_delete(const char *name, const char *type) |
064af421 | 1204 | { |
abe529af BP |
1205 | const struct ofproto_class *class = ofproto_class_find__(type); |
1206 | return (!class ? EAFNOSUPPORT | |
1207 | : !class->del ? EACCES | |
1208 | : class->del(type, name)); | |
064af421 BP |
1209 | } |
1210 | ||
e9e28be3 BP |
1211 | static void |
1212 | process_port_change(struct ofproto *ofproto, int error, char *devname) | |
1213 | { | |
1214 | if (error == ENOBUFS) { | |
1215 | reinit_ports(ofproto); | |
1216 | } else if (!error) { | |
1217 | update_port(ofproto, devname); | |
1218 | free(devname); | |
1219 | } | |
1220 | } | |
1221 | ||
11a574a7 JP |
1222 | int |
1223 | ofproto_type_run(const char *datapath_type) | |
1224 | { | |
1225 | const struct ofproto_class *class; | |
1226 | int error; | |
1227 | ||
1228 | datapath_type = ofproto_normalize_type(datapath_type); | |
1229 | class = ofproto_class_find__(datapath_type); | |
1230 | ||
1231 | error = class->type_run ? class->type_run(datapath_type) : 0; | |
1232 | if (error && error != EAGAIN) { | |
1233 | VLOG_ERR_RL(&rl, "%s: type_run failed (%s)", | |
10a89ef0 | 1234 | datapath_type, ovs_strerror(error)); |
11a574a7 JP |
1235 | } |
1236 | return error; | |
1237 | } | |
1238 | ||
1239 | int | |
1240 | ofproto_type_run_fast(const char *datapath_type) | |
1241 | { | |
1242 | const struct ofproto_class *class; | |
1243 | int error; | |
1244 | ||
1245 | datapath_type = ofproto_normalize_type(datapath_type); | |
1246 | class = ofproto_class_find__(datapath_type); | |
1247 | ||
1248 | error = class->type_run_fast ? class->type_run_fast(datapath_type) : 0; | |
1249 | if (error && error != EAGAIN) { | |
1250 | VLOG_ERR_RL(&rl, "%s: type_run_fast failed (%s)", | |
10a89ef0 | 1251 | datapath_type, ovs_strerror(error)); |
11a574a7 JP |
1252 | } |
1253 | return error; | |
1254 | } | |
1255 | ||
1256 | void | |
1257 | ofproto_type_wait(const char *datapath_type) | |
1258 | { | |
1259 | const struct ofproto_class *class; | |
1260 | ||
1261 | datapath_type = ofproto_normalize_type(datapath_type); | |
1262 | class = ofproto_class_find__(datapath_type); | |
1263 | ||
1264 | if (class->type_wait) { | |
1265 | class->type_wait(datapath_type); | |
1266 | } | |
1267 | } | |
1268 | ||
064af421 | 1269 | int |
abe529af | 1270 | ofproto_run(struct ofproto *p) |
064af421 | 1271 | { |
7436ed80 BP |
1272 | struct sset changed_netdevs; |
1273 | const char *changed_netdev; | |
031d8bff | 1274 | struct ofport *ofport; |
064af421 | 1275 | int error; |
064af421 | 1276 | |
abe529af | 1277 | error = p->ofproto_class->run(p); |
5fcc0d00 | 1278 | if (error && error != EAGAIN) { |
10a89ef0 | 1279 | VLOG_ERR_RL(&rl, "%s: run failed (%s)", p->name, ovs_strerror(error)); |
149f577a JG |
1280 | } |
1281 | ||
448c2fa8 EJ |
1282 | /* Restore the eviction group heap invariant occasionally. */ |
1283 | if (p->eviction_group_timer < time_msec()) { | |
1284 | size_t i; | |
1285 | ||
1286 | p->eviction_group_timer = time_msec() + 1000; | |
1287 | ||
1288 | for (i = 0; i < p->n_tables; i++) { | |
1289 | struct oftable *table = &p->tables[i]; | |
1290 | struct eviction_group *evg; | |
1291 | struct cls_cursor cursor; | |
1292 | struct cls_rule cr; | |
1293 | struct rule *rule; | |
1294 | ||
1295 | if (!table->eviction_fields) { | |
1296 | continue; | |
1297 | } | |
1298 | ||
1299 | HEAP_FOR_EACH (evg, size_node, &table->eviction_groups_by_size) { | |
1300 | heap_rebuild(&evg->rules); | |
1301 | } | |
1302 | ||
1303 | ovs_rwlock_rdlock(&table->cls.rwlock); | |
1304 | cls_cursor_init(&cursor, &table->cls, &cr); | |
1305 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { | |
1306 | if (!rule->eviction_group | |
1307 | && (rule->idle_timeout || rule->hard_timeout)) { | |
1308 | eviction_group_add_rule(rule); | |
1309 | } | |
1310 | } | |
1311 | ovs_rwlock_unlock(&table->cls.rwlock); | |
1312 | } | |
1313 | } | |
1314 | ||
5bf0e941 | 1315 | if (p->ofproto_class->port_poll) { |
7436ed80 BP |
1316 | char *devname; |
1317 | ||
5bf0e941 BP |
1318 | while ((error = p->ofproto_class->port_poll(p, &devname)) != EAGAIN) { |
1319 | process_port_change(p, error, devname); | |
064af421 | 1320 | } |
e9e28be3 | 1321 | } |
031d8bff | 1322 | |
7436ed80 BP |
1323 | /* Update OpenFlow port status for any port whose netdev has changed. |
1324 | * | |
1325 | * Refreshing a given 'ofport' can cause an arbitrary ofport to be | |
1326 | * destroyed, so it's not safe to update ports directly from the | |
1327 | * HMAP_FOR_EACH loop, or even to use HMAP_FOR_EACH_SAFE. Instead, we | |
1328 | * need this two-phase approach. */ | |
1329 | sset_init(&changed_netdevs); | |
031d8bff EJ |
1330 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { |
1331 | unsigned int change_seq = netdev_change_seq(ofport->netdev); | |
1332 | if (ofport->change_seq != change_seq) { | |
1333 | ofport->change_seq = change_seq; | |
7436ed80 | 1334 | sset_add(&changed_netdevs, netdev_get_name(ofport->netdev)); |
031d8bff | 1335 | } |
064af421 | 1336 | } |
7436ed80 BP |
1337 | SSET_FOR_EACH (changed_netdev, &changed_netdevs) { |
1338 | update_port(p, changed_netdev); | |
1339 | } | |
1340 | sset_destroy(&changed_netdevs); | |
064af421 | 1341 | |
7ee20df1 BP |
1342 | switch (p->state) { |
1343 | case S_OPENFLOW: | |
1344 | connmgr_run(p->connmgr, handle_openflow); | |
1345 | break; | |
1346 | ||
254750ce BP |
1347 | case S_EVICT: |
1348 | connmgr_run(p->connmgr, NULL); | |
1349 | ofproto_evict(p); | |
1350 | if (list_is_empty(&p->pending) && hmap_is_empty(&p->deletions)) { | |
1351 | p->state = S_OPENFLOW; | |
1352 | } | |
1353 | break; | |
1354 | ||
7ee20df1 BP |
1355 | case S_FLUSH: |
1356 | connmgr_run(p->connmgr, NULL); | |
1357 | ofproto_flush__(p); | |
1358 | if (list_is_empty(&p->pending) && hmap_is_empty(&p->deletions)) { | |
1359 | connmgr_flushed(p->connmgr); | |
1360 | p->state = S_OPENFLOW; | |
1361 | } | |
1362 | break; | |
1363 | ||
1364 | default: | |
1365 | NOT_REACHED(); | |
1366 | } | |
064af421 | 1367 | |
a5b8d268 BP |
1368 | if (time_msec() >= p->next_op_report) { |
1369 | long long int ago = (time_msec() - p->first_op) / 1000; | |
1370 | long long int interval = (p->last_op - p->first_op) / 1000; | |
1371 | struct ds s; | |
1372 | ||
1373 | ds_init(&s); | |
1374 | ds_put_format(&s, "%d flow_mods ", | |
1375 | p->n_add + p->n_delete + p->n_modify); | |
1376 | if (interval == ago) { | |
1377 | ds_put_format(&s, "in the last %lld s", ago); | |
1378 | } else if (interval) { | |
1379 | ds_put_format(&s, "in the %lld s starting %lld s ago", | |
1380 | interval, ago); | |
1381 | } else { | |
1382 | ds_put_format(&s, "%lld s ago", ago); | |
1383 | } | |
1384 | ||
1385 | ds_put_cstr(&s, " ("); | |
1386 | if (p->n_add) { | |
1387 | ds_put_format(&s, "%d adds, ", p->n_add); | |
1388 | } | |
1389 | if (p->n_delete) { | |
1390 | ds_put_format(&s, "%d deletes, ", p->n_delete); | |
1391 | } | |
1392 | if (p->n_modify) { | |
1393 | ds_put_format(&s, "%d modifications, ", p->n_modify); | |
1394 | } | |
1395 | s.length -= 2; | |
1396 | ds_put_char(&s, ')'); | |
1397 | ||
fbfa2911 | 1398 | VLOG_INFO("%s: %s", p->name, ds_cstr(&s)); |
a5b8d268 BP |
1399 | ds_destroy(&s); |
1400 | ||
1401 | p->n_add = p->n_delete = p->n_modify = 0; | |
1402 | p->next_op_report = LLONG_MAX; | |
1403 | } | |
1404 | ||
5fcc0d00 BP |
1405 | return error; |
1406 | } | |
1407 | ||
1408 | /* Performs periodic activity required by 'ofproto' that needs to be done | |
1409 | * with the least possible latency. | |
1410 | * | |
1411 | * It makes sense to call this function a couple of times per poll loop, to | |
1412 | * provide a significant performance boost on some benchmarks with the | |
1413 | * ofproto-dpif implementation. */ | |
1414 | int | |
1415 | ofproto_run_fast(struct ofproto *p) | |
1416 | { | |
1417 | int error; | |
1418 | ||
1419 | error = p->ofproto_class->run_fast ? p->ofproto_class->run_fast(p) : 0; | |
1420 | if (error && error != EAGAIN) { | |
1421 | VLOG_ERR_RL(&rl, "%s: fastpath run failed (%s)", | |
10a89ef0 | 1422 | p->name, ovs_strerror(error)); |
5fcc0d00 BP |
1423 | } |
1424 | return error; | |
064af421 BP |
1425 | } |
1426 | ||
1427 | void | |
1428 | ofproto_wait(struct ofproto *p) | |
1429 | { | |
031d8bff EJ |
1430 | struct ofport *ofport; |
1431 | ||
abe529af | 1432 | p->ofproto_class->wait(p); |
5bf0e941 BP |
1433 | if (p->ofproto_class->port_poll_wait) { |
1434 | p->ofproto_class->port_poll_wait(p); | |
e7934396 | 1435 | } |
031d8bff EJ |
1436 | |
1437 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
1438 | if (ofport->change_seq != netdev_change_seq(ofport->netdev)) { | |
1439 | poll_immediate_wake(); | |
1440 | } | |
1441 | } | |
7ee20df1 BP |
1442 | |
1443 | switch (p->state) { | |
1444 | case S_OPENFLOW: | |
1445 | connmgr_wait(p->connmgr, true); | |
1446 | break; | |
1447 | ||
254750ce | 1448 | case S_EVICT: |
7ee20df1 BP |
1449 | case S_FLUSH: |
1450 | connmgr_wait(p->connmgr, false); | |
1451 | if (list_is_empty(&p->pending) && hmap_is_empty(&p->deletions)) { | |
1452 | poll_immediate_wake(); | |
1453 | } | |
1454 | break; | |
1455 | } | |
064af421 BP |
1456 | } |
1457 | ||
064af421 BP |
1458 | bool |
1459 | ofproto_is_alive(const struct ofproto *p) | |
1460 | { | |
19a87e36 | 1461 | return connmgr_has_controllers(p->connmgr); |
064af421 BP |
1462 | } |
1463 | ||
0d085684 BP |
1464 | /* Adds some memory usage statistics for 'ofproto' into 'usage', for use with |
1465 | * memory_report(). */ | |
1466 | void | |
1467 | ofproto_get_memory_usage(const struct ofproto *ofproto, struct simap *usage) | |
1468 | { | |
1469 | const struct oftable *table; | |
1470 | unsigned int n_rules; | |
1471 | ||
1472 | simap_increase(usage, "ports", hmap_count(&ofproto->ports)); | |
1473 | simap_increase(usage, "ops", | |
1474 | ofproto->n_pending + hmap_count(&ofproto->deletions)); | |
1475 | ||
1476 | n_rules = 0; | |
1477 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { | |
0b4f2078 | 1478 | ovs_rwlock_rdlock(&table->cls.rwlock); |
0d085684 | 1479 | n_rules += classifier_count(&table->cls); |
0b4f2078 | 1480 | ovs_rwlock_unlock(&table->cls.rwlock); |
0d085684 BP |
1481 | } |
1482 | simap_increase(usage, "rules", n_rules); | |
1483 | ||
1484 | if (ofproto->ofproto_class->get_memory_usage) { | |
1485 | ofproto->ofproto_class->get_memory_usage(ofproto, usage); | |
1486 | } | |
1487 | ||
1488 | connmgr_get_memory_usage(ofproto->connmgr, usage); | |
1489 | } | |
1490 | ||
bffc0589 | 1491 | void |
2cdcb898 | 1492 | ofproto_get_ofproto_controller_info(const struct ofproto *ofproto, |
bffc0589 AE |
1493 | struct shash *info) |
1494 | { | |
19a87e36 | 1495 | connmgr_get_controller_info(ofproto->connmgr, info); |
bffc0589 AE |
1496 | } |
1497 | ||
1498 | void | |
1499 | ofproto_free_ofproto_controller_info(struct shash *info) | |
1500 | { | |
72ba2ed3 | 1501 | connmgr_free_controller_info(info); |
bffc0589 AE |
1502 | } |
1503 | ||
b5827b24 BP |
1504 | /* Makes a deep copy of 'old' into 'port'. */ |
1505 | void | |
1506 | ofproto_port_clone(struct ofproto_port *port, const struct ofproto_port *old) | |
1507 | { | |
1508 | port->name = xstrdup(old->name); | |
1509 | port->type = xstrdup(old->type); | |
1510 | port->ofp_port = old->ofp_port; | |
1511 | } | |
1512 | ||
1513 | /* Frees memory allocated to members of 'ofproto_port'. | |
3a6ccc8c | 1514 | * |
b5827b24 BP |
1515 | * Do not call this function on an ofproto_port obtained from |
1516 | * ofproto_port_dump_next(): that function retains ownership of the data in the | |
1517 | * ofproto_port. */ | |
1518 | void | |
1519 | ofproto_port_destroy(struct ofproto_port *ofproto_port) | |
1520 | { | |
1521 | free(ofproto_port->name); | |
1522 | free(ofproto_port->type); | |
1523 | } | |
1524 | ||
b5827b24 | 1525 | /* Initializes 'dump' to begin dumping the ports in an ofproto. |
3a6ccc8c | 1526 | * |
b5827b24 BP |
1527 | * This function provides no status indication. An error status for the entire |
1528 | * dump operation is provided when it is completed by calling | |
1529 | * ofproto_port_dump_done(). | |
1530 | */ | |
1531 | void | |
1532 | ofproto_port_dump_start(struct ofproto_port_dump *dump, | |
1533 | const struct ofproto *ofproto) | |
1534 | { | |
abe529af BP |
1535 | dump->ofproto = ofproto; |
1536 | dump->error = ofproto->ofproto_class->port_dump_start(ofproto, | |
1537 | &dump->state); | |
b5827b24 BP |
1538 | } |
1539 | ||
1540 | /* Attempts to retrieve another port from 'dump', which must have been created | |
1541 | * with ofproto_port_dump_start(). On success, stores a new ofproto_port into | |
1542 | * 'port' and returns true. On failure, returns false. | |
1543 | * | |
1544 | * Failure might indicate an actual error or merely that the last port has been | |
1545 | * dumped. An error status for the entire dump operation is provided when it | |
1546 | * is completed by calling ofproto_port_dump_done(). | |
1547 | * | |
1548 | * The ofproto owns the data stored in 'port'. It will remain valid until at | |
1549 | * least the next time 'dump' is passed to ofproto_port_dump_next() or | |
1550 | * ofproto_port_dump_done(). */ | |
1551 | bool | |
1552 | ofproto_port_dump_next(struct ofproto_port_dump *dump, | |
1553 | struct ofproto_port *port) | |
1554 | { | |
abe529af BP |
1555 | const struct ofproto *ofproto = dump->ofproto; |
1556 | ||
1557 | if (dump->error) { | |
1558 | return false; | |
1559 | } | |
b5827b24 | 1560 | |
abe529af BP |
1561 | dump->error = ofproto->ofproto_class->port_dump_next(ofproto, dump->state, |
1562 | port); | |
1563 | if (dump->error) { | |
1564 | ofproto->ofproto_class->port_dump_done(ofproto, dump->state); | |
1565 | return false; | |
b5827b24 | 1566 | } |
abe529af | 1567 | return true; |
b5827b24 BP |
1568 | } |
1569 | ||
1570 | /* Completes port table dump operation 'dump', which must have been created | |
1571 | * with ofproto_port_dump_start(). Returns 0 if the dump operation was | |
1572 | * error-free, otherwise a positive errno value describing the problem. */ | |
3a6ccc8c | 1573 | int |
b5827b24 | 1574 | ofproto_port_dump_done(struct ofproto_port_dump *dump) |
3a6ccc8c | 1575 | { |
abe529af BP |
1576 | const struct ofproto *ofproto = dump->ofproto; |
1577 | if (!dump->error) { | |
1578 | dump->error = ofproto->ofproto_class->port_dump_done(ofproto, | |
1579 | dump->state); | |
1580 | } | |
1581 | return dump->error == EOF ? 0 : dump->error; | |
b5827b24 BP |
1582 | } |
1583 | ||
0aeaabc8 JP |
1584 | /* Returns the type to pass to netdev_open() when a datapath of type |
1585 | * 'datapath_type' has a port of type 'port_type', for a few special | |
1586 | * cases when a netdev type differs from a port type. For example, when | |
1587 | * using the userspace datapath, a port of type "internal" needs to be | |
1588 | * opened as "tap". | |
1589 | * | |
1590 | * Returns either 'type' itself or a string literal, which must not be | |
1591 | * freed. */ | |
1592 | const char * | |
1593 | ofproto_port_open_type(const char *datapath_type, const char *port_type) | |
1594 | { | |
1595 | const struct ofproto_class *class; | |
1596 | ||
1597 | datapath_type = ofproto_normalize_type(datapath_type); | |
1598 | class = ofproto_class_find__(datapath_type); | |
1599 | if (!class) { | |
1600 | return port_type; | |
1601 | } | |
1602 | ||
1603 | return (class->port_open_type | |
1604 | ? class->port_open_type(datapath_type, port_type) | |
1605 | : port_type); | |
1606 | } | |
1607 | ||
81816a5f JP |
1608 | /* Attempts to add 'netdev' as a port on 'ofproto'. If 'ofp_portp' is |
1609 | * non-null and '*ofp_portp' is not OFPP_NONE, attempts to use that as | |
1610 | * the port's OpenFlow port number. | |
1611 | * | |
1612 | * If successful, returns 0 and sets '*ofp_portp' to the new port's | |
1613 | * OpenFlow port number (if 'ofp_portp' is non-null). On failure, | |
1614 | * returns a positive errno value and sets '*ofp_portp' to OFPP_NONE (if | |
1615 | * 'ofp_portp' is non-null). */ | |
b5827b24 BP |
1616 | int |
1617 | ofproto_port_add(struct ofproto *ofproto, struct netdev *netdev, | |
4e022ec0 | 1618 | ofp_port_t *ofp_portp) |
b5827b24 | 1619 | { |
4e022ec0 | 1620 | ofp_port_t ofp_port = ofp_portp ? *ofp_portp : OFPP_NONE; |
3a6ccc8c BP |
1621 | int error; |
1622 | ||
e1b1d06a | 1623 | error = ofproto->ofproto_class->port_add(ofproto, netdev); |
1fa24dea | 1624 | if (!error) { |
e1b1d06a JP |
1625 | const char *netdev_name = netdev_get_name(netdev); |
1626 | ||
4e022ec0 AW |
1627 | simap_put(&ofproto->ofp_requests, netdev_name, |
1628 | ofp_to_u16(ofp_port)); | |
e1b1d06a | 1629 | update_port(ofproto, netdev_name); |
1fa24dea | 1630 | } |
b5827b24 | 1631 | if (ofp_portp) { |
e1b1d06a JP |
1632 | struct ofproto_port ofproto_port; |
1633 | ||
1634 | ofproto_port_query_by_name(ofproto, netdev_get_name(netdev), | |
1635 | &ofproto_port); | |
1636 | *ofp_portp = error ? OFPP_NONE : ofproto_port.ofp_port; | |
1637 | ofproto_port_destroy(&ofproto_port); | |
3a6ccc8c BP |
1638 | } |
1639 | return error; | |
1640 | } | |
1641 | ||
b5827b24 BP |
1642 | /* Looks up a port named 'devname' in 'ofproto'. On success, returns 0 and |
1643 | * initializes '*port' appropriately; on failure, returns a positive errno | |
1644 | * value. | |
1645 | * | |
abe529af | 1646 | * The caller owns the data in 'ofproto_port' and must free it with |
b5827b24 BP |
1647 | * ofproto_port_destroy() when it is no longer needed. */ |
1648 | int | |
1649 | ofproto_port_query_by_name(const struct ofproto *ofproto, const char *devname, | |
1650 | struct ofproto_port *port) | |
a4e2e1f2 | 1651 | { |
b5827b24 BP |
1652 | int error; |
1653 | ||
abe529af BP |
1654 | error = ofproto->ofproto_class->port_query_by_name(ofproto, devname, port); |
1655 | if (error) { | |
1656 | memset(port, 0, sizeof *port); | |
b5827b24 BP |
1657 | } |
1658 | return error; | |
a4e2e1f2 EJ |
1659 | } |
1660 | ||
b5827b24 | 1661 | /* Deletes port number 'ofp_port' from the datapath for 'ofproto'. |
3a6ccc8c | 1662 | * Returns 0 if successful, otherwise a positive errno. */ |
064af421 | 1663 | int |
4e022ec0 | 1664 | ofproto_port_del(struct ofproto *ofproto, ofp_port_t ofp_port) |
064af421 | 1665 | { |
abe529af | 1666 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1264ec95 | 1667 | const char *name = ofport ? netdev_get_name(ofport->netdev) : "<unknown>"; |
e1b1d06a | 1668 | struct simap_node *ofp_request_node; |
3cf10406 | 1669 | int error; |
cdee00fd | 1670 | |
e1b1d06a JP |
1671 | ofp_request_node = simap_find(&ofproto->ofp_requests, name); |
1672 | if (ofp_request_node) { | |
1673 | simap_delete(&ofproto->ofp_requests, ofp_request_node); | |
1674 | } | |
1675 | ||
abe529af | 1676 | error = ofproto->ofproto_class->port_del(ofproto, ofp_port); |
892815f5 | 1677 | if (!error && ofport) { |
1264ec95 BP |
1678 | /* 'name' is the netdev's name and update_port() is going to close the |
1679 | * netdev. Just in case update_port() refers to 'name' after it | |
3a6ccc8c BP |
1680 | * destroys 'ofport', make a copy of it around the update_port() |
1681 | * call. */ | |
1682 | char *devname = xstrdup(name); | |
1683 | update_port(ofproto, devname); | |
1684 | free(devname); | |
3cf10406 BP |
1685 | } |
1686 | return error; | |
064af421 BP |
1687 | } |
1688 | ||
6c1491fb | 1689 | /* Adds a flow to OpenFlow flow table 0 in 'p' that matches 'cls_rule' and |
fa8b054f BP |
1690 | * performs the 'n_actions' actions in 'actions'. The new flow will not |
1691 | * timeout. | |
1692 | * | |
1693 | * If cls_rule->priority is in the range of priorities supported by OpenFlow | |
1694 | * (0...65535, inclusive) then the flow will be visible to OpenFlow | |
1695 | * controllers; otherwise, it will be hidden. | |
1696 | * | |
f25d0cf3 | 1697 | * The caller retains ownership of 'cls_rule' and 'ofpacts'. |
6c1491fb BP |
1698 | * |
1699 | * This is a helper function for in-band control and fail-open. */ | |
064af421 | 1700 | void |
81a76618 BP |
1701 | ofproto_add_flow(struct ofproto *ofproto, const struct match *match, |
1702 | unsigned int priority, | |
f25d0cf3 | 1703 | const struct ofpact *ofpacts, size_t ofpacts_len) |
064af421 | 1704 | { |
7ee20df1 BP |
1705 | const struct rule *rule; |
1706 | ||
0b4f2078 | 1707 | ovs_rwlock_rdlock(&ofproto->tables[0].cls.rwlock); |
81a76618 BP |
1708 | rule = rule_from_cls_rule(classifier_find_match_exactly( |
1709 | &ofproto->tables[0].cls, match, priority)); | |
0b4f2078 | 1710 | ovs_rwlock_unlock(&ofproto->tables[0].cls.rwlock); |
f25d0cf3 BP |
1711 | if (!rule || !ofpacts_equal(rule->ofpacts, rule->ofpacts_len, |
1712 | ofpacts, ofpacts_len)) { | |
a9a2da38 | 1713 | struct ofputil_flow_mod fm; |
7ee20df1 BP |
1714 | |
1715 | memset(&fm, 0, sizeof fm); | |
81a76618 BP |
1716 | fm.match = *match; |
1717 | fm.priority = priority; | |
7ee20df1 | 1718 | fm.buffer_id = UINT32_MAX; |
f25d0cf3 BP |
1719 | fm.ofpacts = xmemdup(ofpacts, ofpacts_len); |
1720 | fm.ofpacts_len = ofpacts_len; | |
7ee20df1 | 1721 | add_flow(ofproto, NULL, &fm, NULL); |
f25d0cf3 | 1722 | free(fm.ofpacts); |
7ee20df1 | 1723 | } |
064af421 BP |
1724 | } |
1725 | ||
75a75043 | 1726 | /* Executes the flow modification specified in 'fm'. Returns 0 on success, an |
90bf1e07 BP |
1727 | * OFPERR_* OpenFlow error code on failure, or OFPROTO_POSTPONE if the |
1728 | * operation cannot be initiated now but may be retried later. | |
75a75043 BP |
1729 | * |
1730 | * This is a helper function for in-band control and fail-open. */ | |
1731 | int | |
e3b56933 | 1732 | ofproto_flow_mod(struct ofproto *ofproto, struct ofputil_flow_mod *fm) |
75a75043 BP |
1733 | { |
1734 | return handle_flow_mod__(ofproto, NULL, fm, NULL); | |
1735 | } | |
1736 | ||
6c1491fb BP |
1737 | /* Searches for a rule with matching criteria exactly equal to 'target' in |
1738 | * ofproto's table 0 and, if it finds one, deletes it. | |
1739 | * | |
1740 | * This is a helper function for in-band control and fail-open. */ | |
7ee20df1 | 1741 | bool |
81a76618 BP |
1742 | ofproto_delete_flow(struct ofproto *ofproto, |
1743 | const struct match *target, unsigned int priority) | |
064af421 | 1744 | { |
8037acb4 | 1745 | struct classifier *cls = &ofproto->tables[0].cls; |
064af421 BP |
1746 | struct rule *rule; |
1747 | ||
8037acb4 BP |
1748 | ovs_rwlock_rdlock(&cls->rwlock); |
1749 | rule = rule_from_cls_rule(classifier_find_match_exactly(cls, target, | |
1750 | priority)); | |
1751 | ovs_rwlock_unlock(&cls->rwlock); | |
7ee20df1 BP |
1752 | if (!rule) { |
1753 | /* No such rule -> success. */ | |
1754 | return true; | |
1755 | } else if (rule->pending) { | |
1756 | /* An operation on the rule is already pending -> failure. | |
1757 | * Caller must retry later if it's important. */ | |
1758 | return false; | |
1759 | } else { | |
1760 | /* Initiate deletion -> success. */ | |
8037acb4 BP |
1761 | ovs_rwlock_wrlock(&cls->rwlock); |
1762 | ofproto_delete_rule(ofproto, cls, rule); | |
1763 | ovs_rwlock_unlock(&cls->rwlock); | |
1764 | ||
7ee20df1 | 1765 | return true; |
bcf84111 | 1766 | } |
5ecc9d81 | 1767 | |
142e1f5c BP |
1768 | } |
1769 | ||
7ee20df1 BP |
1770 | /* Starts the process of deleting all of the flows from all of ofproto's flow |
1771 | * tables and then reintroducing the flows required by in-band control and | |
1772 | * fail-open. The process will complete in a later call to ofproto_run(). */ | |
142e1f5c BP |
1773 | void |
1774 | ofproto_flush_flows(struct ofproto *ofproto) | |
1775 | { | |
7ee20df1 BP |
1776 | COVERAGE_INC(ofproto_flush); |
1777 | ofproto->state = S_FLUSH; | |
064af421 BP |
1778 | } |
1779 | \f | |
1780 | static void | |
1781 | reinit_ports(struct ofproto *p) | |
1782 | { | |
abe529af | 1783 | struct ofproto_port_dump dump; |
b3c01ed3 | 1784 | struct sset devnames; |
064af421 | 1785 | struct ofport *ofport; |
abe529af | 1786 | struct ofproto_port ofproto_port; |
b3c01ed3 | 1787 | const char *devname; |
064af421 | 1788 | |
898bf89d JP |
1789 | COVERAGE_INC(ofproto_reinit_ports); |
1790 | ||
b3c01ed3 | 1791 | sset_init(&devnames); |
4e8e4213 | 1792 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { |
1264ec95 | 1793 | sset_add(&devnames, netdev_get_name(ofport->netdev)); |
064af421 | 1794 | } |
abe529af BP |
1795 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { |
1796 | sset_add(&devnames, ofproto_port.name); | |
064af421 | 1797 | } |
064af421 | 1798 | |
b3c01ed3 BP |
1799 | SSET_FOR_EACH (devname, &devnames) { |
1800 | update_port(p, devname); | |
064af421 | 1801 | } |
b3c01ed3 | 1802 | sset_destroy(&devnames); |
064af421 BP |
1803 | } |
1804 | ||
4e022ec0 | 1805 | static ofp_port_t |
e1b1d06a JP |
1806 | alloc_ofp_port(struct ofproto *ofproto, const char *netdev_name) |
1807 | { | |
4e022ec0 | 1808 | uint16_t port_idx; |
e1b1d06a | 1809 | |
4e022ec0 | 1810 | port_idx = simap_get(&ofproto->ofp_requests, netdev_name); |
430dbb14 | 1811 | port_idx = port_idx ? port_idx : UINT16_MAX; |
4e022ec0 | 1812 | |
430dbb14 | 1813 | if (port_idx >= ofproto->max_ports |
4e022ec0 | 1814 | || bitmap_is_set(ofproto->ofp_port_ids, port_idx)) { |
430dbb14 | 1815 | uint16_t end_port_no = ofproto->alloc_port_no; |
e1b1d06a | 1816 | |
e1b1d06a JP |
1817 | /* Search for a free OpenFlow port number. We try not to |
1818 | * immediately reuse them to prevent problems due to old | |
1819 | * flows. */ | |
6033d9d9 | 1820 | for (;;) { |
430dbb14 AW |
1821 | if (++ofproto->alloc_port_no >= ofproto->max_ports) { |
1822 | ofproto->alloc_port_no = 0; | |
6033d9d9 | 1823 | } |
430dbb14 AW |
1824 | if (!bitmap_is_set(ofproto->ofp_port_ids, |
1825 | ofproto->alloc_port_no)) { | |
1826 | port_idx = ofproto->alloc_port_no; | |
6033d9d9 | 1827 | break; |
e1b1d06a | 1828 | } |
430dbb14 | 1829 | if (ofproto->alloc_port_no == end_port_no) { |
6033d9d9 | 1830 | return OFPP_NONE; |
e1b1d06a JP |
1831 | } |
1832 | } | |
1833 | } | |
4e022ec0 AW |
1834 | bitmap_set1(ofproto->ofp_port_ids, port_idx); |
1835 | return u16_to_ofp(port_idx); | |
e1b1d06a JP |
1836 | } |
1837 | ||
1838 | static void | |
4e022ec0 | 1839 | dealloc_ofp_port(const struct ofproto *ofproto, ofp_port_t ofp_port) |
e1b1d06a | 1840 | { |
430dbb14 | 1841 | if (ofp_to_u16(ofp_port) < ofproto->max_ports) { |
4e022ec0 | 1842 | bitmap_set0(ofproto->ofp_port_ids, ofp_to_u16(ofp_port)); |
40fa9417 | 1843 | } |
e1b1d06a JP |
1844 | } |
1845 | ||
fbfa2911 BP |
1846 | /* Opens and returns a netdev for 'ofproto_port' in 'ofproto', or a null |
1847 | * pointer if the netdev cannot be opened. On success, also fills in | |
1848 | * 'opp'. */ | |
b33951b8 | 1849 | static struct netdev * |
e1b1d06a JP |
1850 | ofport_open(struct ofproto *ofproto, |
1851 | struct ofproto_port *ofproto_port, | |
9e1fd49b | 1852 | struct ofputil_phy_port *pp) |
064af421 BP |
1853 | { |
1854 | enum netdev_flags flags; | |
064af421 | 1855 | struct netdev *netdev; |
064af421 BP |
1856 | int error; |
1857 | ||
18812dff | 1858 | error = netdev_open(ofproto_port->name, ofproto_port->type, &netdev); |
064af421 | 1859 | if (error) { |
fbfa2911 | 1860 | VLOG_WARN_RL(&rl, "%s: ignoring port %s (%"PRIu16") because netdev %s " |
064af421 | 1861 | "cannot be opened (%s)", |
fbfa2911 | 1862 | ofproto->name, |
abe529af | 1863 | ofproto_port->name, ofproto_port->ofp_port, |
10a89ef0 | 1864 | ofproto_port->name, ovs_strerror(error)); |
064af421 BP |
1865 | return NULL; |
1866 | } | |
1867 | ||
e1b1d06a JP |
1868 | if (ofproto_port->ofp_port == OFPP_NONE) { |
1869 | if (!strcmp(ofproto->name, ofproto_port->name)) { | |
1870 | ofproto_port->ofp_port = OFPP_LOCAL; | |
1871 | } else { | |
1872 | ofproto_port->ofp_port = alloc_ofp_port(ofproto, | |
1873 | ofproto_port->name); | |
1874 | } | |
1875 | } | |
9e1fd49b BP |
1876 | pp->port_no = ofproto_port->ofp_port; |
1877 | netdev_get_etheraddr(netdev, pp->hw_addr); | |
1878 | ovs_strlcpy(pp->name, ofproto_port->name, sizeof pp->name); | |
064af421 | 1879 | netdev_get_flags(netdev, &flags); |
9e1fd49b BP |
1880 | pp->config = flags & NETDEV_UP ? 0 : OFPUTIL_PC_PORT_DOWN; |
1881 | pp->state = netdev_get_carrier(netdev) ? 0 : OFPUTIL_PS_LINK_DOWN; | |
1882 | netdev_get_features(netdev, &pp->curr, &pp->advertised, | |
1883 | &pp->supported, &pp->peer); | |
cd65125d BP |
1884 | pp->curr_speed = netdev_features_to_bps(pp->curr, 0) / 1000; |
1885 | pp->max_speed = netdev_features_to_bps(pp->supported, 0) / 1000; | |
118c4676 | 1886 | |
b33951b8 | 1887 | return netdev; |
064af421 BP |
1888 | } |
1889 | ||
b33951b8 | 1890 | /* Returns true if most fields of 'a' and 'b' are equal. Differences in name, |
9e1fd49b | 1891 | * port number, and 'config' bits other than OFPUTIL_PS_LINK_DOWN are |
b33951b8 BP |
1892 | * disregarded. */ |
1893 | static bool | |
9e1fd49b BP |
1894 | ofport_equal(const struct ofputil_phy_port *a, |
1895 | const struct ofputil_phy_port *b) | |
064af421 | 1896 | { |
9e1fd49b | 1897 | return (eth_addr_equals(a->hw_addr, b->hw_addr) |
064af421 | 1898 | && a->state == b->state |
9e1fd49b | 1899 | && !((a->config ^ b->config) & OFPUTIL_PC_PORT_DOWN) |
064af421 BP |
1900 | && a->curr == b->curr |
1901 | && a->advertised == b->advertised | |
1902 | && a->supported == b->supported | |
9e1fd49b BP |
1903 | && a->peer == b->peer |
1904 | && a->curr_speed == b->curr_speed | |
1905 | && a->max_speed == b->max_speed); | |
064af421 BP |
1906 | } |
1907 | ||
b33951b8 BP |
1908 | /* Adds an ofport to 'p' initialized based on the given 'netdev' and 'opp'. |
1909 | * The caller must ensure that 'p' does not have a conflicting ofport (that is, | |
1910 | * one with the same name or port number). */ | |
064af421 | 1911 | static void |
b33951b8 | 1912 | ofport_install(struct ofproto *p, |
9e1fd49b | 1913 | struct netdev *netdev, const struct ofputil_phy_port *pp) |
064af421 | 1914 | { |
b33951b8 BP |
1915 | const char *netdev_name = netdev_get_name(netdev); |
1916 | struct ofport *ofport; | |
abe529af | 1917 | int error; |
72b06300 | 1918 | |
b33951b8 | 1919 | /* Create ofport. */ |
abe529af BP |
1920 | ofport = p->ofproto_class->port_alloc(); |
1921 | if (!ofport) { | |
1922 | error = ENOMEM; | |
1923 | goto error; | |
1924 | } | |
0f7d71a5 | 1925 | ofport->ofproto = p; |
b33951b8 | 1926 | ofport->netdev = netdev; |
031d8bff | 1927 | ofport->change_seq = netdev_change_seq(netdev); |
9e1fd49b BP |
1928 | ofport->pp = *pp; |
1929 | ofport->ofp_port = pp->port_no; | |
65e0be10 | 1930 | ofport->created = time_msec(); |
b33951b8 BP |
1931 | |
1932 | /* Add port to 'p'. */ | |
4e022ec0 | 1933 | hmap_insert(&p->ports, &ofport->hmap_node, |
f9c0c3ec | 1934 | hash_ofp_port(ofport->ofp_port)); |
72b06300 | 1935 | shash_add(&p->port_by_name, netdev_name, ofport); |
abe529af | 1936 | |
ada3428f | 1937 | update_mtu(p, ofport); |
9197df76 | 1938 | |
abe529af BP |
1939 | /* Let the ofproto_class initialize its private data. */ |
1940 | error = p->ofproto_class->port_construct(ofport); | |
1941 | if (error) { | |
1942 | goto error; | |
1943 | } | |
9e1fd49b | 1944 | connmgr_send_port_status(p->connmgr, pp, OFPPR_ADD); |
abe529af BP |
1945 | return; |
1946 | ||
1947 | error: | |
1948 | VLOG_WARN_RL(&rl, "%s: could not add port %s (%s)", | |
10a89ef0 | 1949 | p->name, netdev_name, ovs_strerror(error)); |
abe529af BP |
1950 | if (ofport) { |
1951 | ofport_destroy__(ofport); | |
1952 | } else { | |
1953 | netdev_close(netdev); | |
72b06300 | 1954 | } |
064af421 BP |
1955 | } |
1956 | ||
b33951b8 | 1957 | /* Removes 'ofport' from 'p' and destroys it. */ |
064af421 | 1958 | static void |
0f7d71a5 | 1959 | ofport_remove(struct ofport *ofport) |
064af421 | 1960 | { |
9e1fd49b | 1961 | connmgr_send_port_status(ofport->ofproto->connmgr, &ofport->pp, |
fa066f01 | 1962 | OFPPR_DELETE); |
abe529af | 1963 | ofport_destroy(ofport); |
b33951b8 BP |
1964 | } |
1965 | ||
1966 | /* If 'ofproto' contains an ofport named 'name', removes it from 'ofproto' and | |
1967 | * destroys it. */ | |
1968 | static void | |
1969 | ofport_remove_with_name(struct ofproto *ofproto, const char *name) | |
1970 | { | |
1971 | struct ofport *port = shash_find_data(&ofproto->port_by_name, name); | |
1972 | if (port) { | |
0f7d71a5 | 1973 | ofport_remove(port); |
b33951b8 BP |
1974 | } |
1975 | } | |
1976 | ||
9e1fd49b | 1977 | /* Updates 'port' with new 'pp' description. |
b33951b8 BP |
1978 | * |
1979 | * Does not handle a name or port number change. The caller must implement | |
1980 | * such a change as a delete followed by an add. */ | |
1981 | static void | |
9e1fd49b | 1982 | ofport_modified(struct ofport *port, struct ofputil_phy_port *pp) |
b33951b8 | 1983 | { |
9e1fd49b BP |
1984 | memcpy(port->pp.hw_addr, pp->hw_addr, ETH_ADDR_LEN); |
1985 | port->pp.config = ((port->pp.config & ~OFPUTIL_PC_PORT_DOWN) | |
1986 | | (pp->config & OFPUTIL_PC_PORT_DOWN)); | |
1987 | port->pp.state = pp->state; | |
1988 | port->pp.curr = pp->curr; | |
1989 | port->pp.advertised = pp->advertised; | |
1990 | port->pp.supported = pp->supported; | |
1991 | port->pp.peer = pp->peer; | |
1992 | port->pp.curr_speed = pp->curr_speed; | |
1993 | port->pp.max_speed = pp->max_speed; | |
b33951b8 | 1994 | |
9e1fd49b | 1995 | connmgr_send_port_status(port->ofproto->connmgr, &port->pp, OFPPR_MODIFY); |
064af421 BP |
1996 | } |
1997 | ||
5a2dfd47 JP |
1998 | /* Update OpenFlow 'state' in 'port' and notify controller. */ |
1999 | void | |
9e1fd49b | 2000 | ofproto_port_set_state(struct ofport *port, enum ofputil_port_state state) |
5a2dfd47 | 2001 | { |
9e1fd49b BP |
2002 | if (port->pp.state != state) { |
2003 | port->pp.state = state; | |
2004 | connmgr_send_port_status(port->ofproto->connmgr, &port->pp, | |
5a2dfd47 JP |
2005 | OFPPR_MODIFY); |
2006 | } | |
2007 | } | |
2008 | ||
abe529af | 2009 | void |
4e022ec0 | 2010 | ofproto_port_unregister(struct ofproto *ofproto, ofp_port_t ofp_port) |
e7934396 | 2011 | { |
abe529af BP |
2012 | struct ofport *port = ofproto_get_port(ofproto, ofp_port); |
2013 | if (port) { | |
52a90c29 BP |
2014 | if (port->ofproto->ofproto_class->set_realdev) { |
2015 | port->ofproto->ofproto_class->set_realdev(port, 0, 0); | |
2016 | } | |
b308140a JP |
2017 | if (port->ofproto->ofproto_class->set_stp_port) { |
2018 | port->ofproto->ofproto_class->set_stp_port(port, NULL); | |
2019 | } | |
abe529af | 2020 | if (port->ofproto->ofproto_class->set_cfm) { |
a5610457 | 2021 | port->ofproto->ofproto_class->set_cfm(port, NULL); |
abe529af BP |
2022 | } |
2023 | if (port->ofproto->ofproto_class->bundle_remove) { | |
2024 | port->ofproto->ofproto_class->bundle_remove(port); | |
e7934396 BP |
2025 | } |
2026 | } | |
2027 | } | |
2028 | ||
2029 | static void | |
abe529af | 2030 | ofport_destroy__(struct ofport *port) |
e7934396 | 2031 | { |
abe529af BP |
2032 | struct ofproto *ofproto = port->ofproto; |
2033 | const char *name = netdev_get_name(port->netdev); | |
fa066f01 | 2034 | |
abe529af BP |
2035 | hmap_remove(&ofproto->ports, &port->hmap_node); |
2036 | shash_delete(&ofproto->port_by_name, | |
2037 | shash_find(&ofproto->port_by_name, name)); | |
fa066f01 | 2038 | |
abe529af BP |
2039 | netdev_close(port->netdev); |
2040 | ofproto->ofproto_class->port_dealloc(port); | |
e7934396 BP |
2041 | } |
2042 | ||
064af421 | 2043 | static void |
abe529af | 2044 | ofport_destroy(struct ofport *port) |
064af421 | 2045 | { |
fa066f01 | 2046 | if (port) { |
e1b1d06a | 2047 | dealloc_ofp_port(port->ofproto, port->ofp_port); |
abe529af BP |
2048 | port->ofproto->ofproto_class->port_destruct(port); |
2049 | ofport_destroy__(port); | |
2050 | } | |
064af421 BP |
2051 | } |
2052 | ||
abe529af | 2053 | struct ofport * |
4e022ec0 | 2054 | ofproto_get_port(const struct ofproto *ofproto, ofp_port_t ofp_port) |
ca0f572c BP |
2055 | { |
2056 | struct ofport *port; | |
2057 | ||
f9c0c3ec | 2058 | HMAP_FOR_EACH_IN_BUCKET (port, hmap_node, hash_ofp_port(ofp_port), |
4e022ec0 | 2059 | &ofproto->ports) { |
abe529af | 2060 | if (port->ofp_port == ofp_port) { |
ca0f572c BP |
2061 | return port; |
2062 | } | |
2063 | } | |
2064 | return NULL; | |
2065 | } | |
2066 | ||
6527c598 PS |
2067 | int |
2068 | ofproto_port_get_stats(const struct ofport *port, struct netdev_stats *stats) | |
2069 | { | |
2070 | struct ofproto *ofproto = port->ofproto; | |
2071 | int error; | |
2072 | ||
2073 | if (ofproto->ofproto_class->port_get_stats) { | |
2074 | error = ofproto->ofproto_class->port_get_stats(port, stats); | |
2075 | } else { | |
2076 | error = EOPNOTSUPP; | |
2077 | } | |
2078 | ||
2079 | return error; | |
2080 | } | |
2081 | ||
064af421 | 2082 | static void |
b33951b8 | 2083 | update_port(struct ofproto *ofproto, const char *name) |
064af421 | 2084 | { |
abe529af | 2085 | struct ofproto_port ofproto_port; |
9e1fd49b | 2086 | struct ofputil_phy_port pp; |
b33951b8 BP |
2087 | struct netdev *netdev; |
2088 | struct ofport *port; | |
064af421 BP |
2089 | |
2090 | COVERAGE_INC(ofproto_update_port); | |
c874dc6d | 2091 | |
b33951b8 | 2092 | /* Fetch 'name''s location and properties from the datapath. */ |
abe529af | 2093 | netdev = (!ofproto_port_query_by_name(ofproto, name, &ofproto_port) |
fbfa2911 | 2094 | ? ofport_open(ofproto, &ofproto_port, &pp) |
b33951b8 | 2095 | : NULL); |
4e022ec0 | 2096 | |
b33951b8 | 2097 | if (netdev) { |
abe529af | 2098 | port = ofproto_get_port(ofproto, ofproto_port.ofp_port); |
b33951b8 | 2099 | if (port && !strcmp(netdev_get_name(port->netdev), name)) { |
e65942a0 BP |
2100 | struct netdev *old_netdev = port->netdev; |
2101 | ||
b33951b8 | 2102 | /* 'name' hasn't changed location. Any properties changed? */ |
9e1fd49b BP |
2103 | if (!ofport_equal(&port->pp, &pp)) { |
2104 | ofport_modified(port, &pp); | |
abe529af BP |
2105 | } |
2106 | ||
ada3428f | 2107 | update_mtu(ofproto, port); |
9197df76 | 2108 | |
e65942a0 BP |
2109 | /* Install the newly opened netdev in case it has changed. |
2110 | * Don't close the old netdev yet in case port_modified has to | |
2111 | * remove a retained reference to it.*/ | |
abe529af | 2112 | port->netdev = netdev; |
031d8bff | 2113 | port->change_seq = netdev_change_seq(netdev); |
abe529af BP |
2114 | |
2115 | if (port->ofproto->ofproto_class->port_modified) { | |
2116 | port->ofproto->ofproto_class->port_modified(port); | |
b33951b8 | 2117 | } |
e65942a0 BP |
2118 | |
2119 | netdev_close(old_netdev); | |
b33951b8 BP |
2120 | } else { |
2121 | /* If 'port' is nonnull then its name differs from 'name' and thus | |
2122 | * we should delete it. If we think there's a port named 'name' | |
2123 | * then its port number must be wrong now so delete it too. */ | |
2124 | if (port) { | |
0f7d71a5 | 2125 | ofport_remove(port); |
b33951b8 BP |
2126 | } |
2127 | ofport_remove_with_name(ofproto, name); | |
9e1fd49b | 2128 | ofport_install(ofproto, netdev, &pp); |
c874dc6d | 2129 | } |
b33951b8 BP |
2130 | } else { |
2131 | /* Any port named 'name' is gone now. */ | |
2132 | ofport_remove_with_name(ofproto, name); | |
c874dc6d | 2133 | } |
abe529af | 2134 | ofproto_port_destroy(&ofproto_port); |
064af421 BP |
2135 | } |
2136 | ||
2137 | static int | |
2138 | init_ports(struct ofproto *p) | |
2139 | { | |
abe529af BP |
2140 | struct ofproto_port_dump dump; |
2141 | struct ofproto_port ofproto_port; | |
e1b1d06a | 2142 | struct shash_node *node, *next; |
abe529af BP |
2143 | |
2144 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { | |
e1b1d06a JP |
2145 | const char *name = ofproto_port.name; |
2146 | ||
2147 | if (shash_find(&p->port_by_name, name)) { | |
fbfa2911 | 2148 | VLOG_WARN_RL(&rl, "%s: ignoring duplicate device %s in datapath", |
e1b1d06a | 2149 | p->name, name); |
abe529af | 2150 | } else { |
9e1fd49b | 2151 | struct ofputil_phy_port pp; |
b33951b8 BP |
2152 | struct netdev *netdev; |
2153 | ||
e1b1d06a JP |
2154 | /* Check if an OpenFlow port number had been requested. */ |
2155 | node = shash_find(&init_ofp_ports, name); | |
2156 | if (node) { | |
2157 | const struct iface_hint *iface_hint = node->data; | |
4e022ec0 AW |
2158 | simap_put(&p->ofp_requests, name, |
2159 | ofp_to_u16(iface_hint->ofp_port)); | |
e1b1d06a JP |
2160 | } |
2161 | ||
fbfa2911 | 2162 | netdev = ofport_open(p, &ofproto_port, &pp); |
b33951b8 | 2163 | if (netdev) { |
9e1fd49b | 2164 | ofport_install(p, netdev, &pp); |
430dbb14 | 2165 | if (ofp_to_u16(ofproto_port.ofp_port) < p->max_ports) { |
7c35397c | 2166 | p->alloc_port_no = MAX(p->alloc_port_no, |
430dbb14 | 2167 | ofp_to_u16(ofproto_port.ofp_port)); |
7c35397c | 2168 | } |
064af421 BP |
2169 | } |
2170 | } | |
2171 | } | |
b0ec0f27 | 2172 | |
e1b1d06a | 2173 | SHASH_FOR_EACH_SAFE(node, next, &init_ofp_ports) { |
4f9e08a5 | 2174 | struct iface_hint *iface_hint = node->data; |
e1b1d06a JP |
2175 | |
2176 | if (!strcmp(iface_hint->br_name, p->name)) { | |
2177 | free(iface_hint->br_name); | |
2178 | free(iface_hint->br_type); | |
4f9e08a5 | 2179 | free(iface_hint); |
e1b1d06a JP |
2180 | shash_delete(&init_ofp_ports, node); |
2181 | } | |
2182 | } | |
2183 | ||
064af421 BP |
2184 | return 0; |
2185 | } | |
9197df76 JP |
2186 | |
2187 | /* Find the minimum MTU of all non-datapath devices attached to 'p'. | |
2188 | * Returns ETH_PAYLOAD_MAX or the minimum of the ports. */ | |
2189 | static int | |
2190 | find_min_mtu(struct ofproto *p) | |
2191 | { | |
2192 | struct ofport *ofport; | |
2193 | int mtu = 0; | |
2194 | ||
2195 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
2196 | struct netdev *netdev = ofport->netdev; | |
2197 | int dev_mtu; | |
2198 | ||
2199 | /* Skip any internal ports, since that's what we're trying to | |
2200 | * set. */ | |
2201 | if (!strcmp(netdev_get_type(netdev), "internal")) { | |
2202 | continue; | |
2203 | } | |
2204 | ||
2205 | if (netdev_get_mtu(netdev, &dev_mtu)) { | |
2206 | continue; | |
2207 | } | |
2208 | if (!mtu || dev_mtu < mtu) { | |
2209 | mtu = dev_mtu; | |
2210 | } | |
2211 | } | |
2212 | ||
2213 | return mtu ? mtu: ETH_PAYLOAD_MAX; | |
2214 | } | |
2215 | ||
ada3428f PS |
2216 | /* Update MTU of all datapath devices on 'p' to the minimum of the |
2217 | * non-datapath ports in event of 'port' added or changed. */ | |
9197df76 | 2218 | static void |
ada3428f | 2219 | update_mtu(struct ofproto *p, struct ofport *port) |
9197df76 JP |
2220 | { |
2221 | struct ofport *ofport; | |
ada3428f PS |
2222 | struct netdev *netdev = port->netdev; |
2223 | int dev_mtu, old_min; | |
2224 | ||
2225 | if (netdev_get_mtu(netdev, &dev_mtu)) { | |
2226 | port->mtu = 0; | |
2227 | return; | |
2228 | } | |
2229 | if (!strcmp(netdev_get_type(port->netdev), "internal")) { | |
2230 | if (dev_mtu > p->min_mtu) { | |
2231 | if (!netdev_set_mtu(port->netdev, p->min_mtu)) { | |
2232 | dev_mtu = p->min_mtu; | |
2233 | } | |
2234 | } | |
2235 | port->mtu = dev_mtu; | |
2236 | return; | |
2237 | } | |
2238 | ||
2239 | /* For non-internal port find new min mtu. */ | |
2240 | old_min = p->min_mtu; | |
2241 | port->mtu = dev_mtu; | |
2242 | p->min_mtu = find_min_mtu(p); | |
2243 | if (p->min_mtu == old_min) { | |
2244 | return; | |
2245 | } | |
9197df76 JP |
2246 | |
2247 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
2248 | struct netdev *netdev = ofport->netdev; | |
2249 | ||
2250 | if (!strcmp(netdev_get_type(netdev), "internal")) { | |
ada3428f PS |
2251 | if (!netdev_set_mtu(netdev, p->min_mtu)) { |
2252 | ofport->mtu = p->min_mtu; | |
2253 | } | |
9197df76 JP |
2254 | } |
2255 | } | |
2256 | } | |
064af421 | 2257 | \f |
064af421 | 2258 | static void |
abe529af | 2259 | ofproto_rule_destroy__(struct rule *rule) |
064af421 | 2260 | { |
1eae3d33 | 2261 | if (rule) { |
8037acb4 | 2262 | rule->ofproto->ofproto_class->rule_destruct(rule); |
48d28ac1 | 2263 | cls_rule_destroy(&rule->cr); |
f25d0cf3 | 2264 | free(rule->ofpacts); |
a3779dbc | 2265 | ovs_mutex_destroy(&rule->timeout_mutex); |
884e1dc4 | 2266 | ovs_rwlock_destroy(&rule->rwlock); |
1eae3d33 BP |
2267 | rule->ofproto->ofproto_class->rule_dealloc(rule); |
2268 | } | |
064af421 BP |
2269 | } |
2270 | ||
7ee20df1 | 2271 | /* This function allows an ofproto implementation to destroy any rules that |
8037acb4 BP |
2272 | * remain when its ->destruct() function is called.. This function implements |
2273 | * steps 4.4 and 4.5 in the section titled "Rule Life Cycle" in | |
2274 | * ofproto-provider.h. | |
7ee20df1 BP |
2275 | * |
2276 | * This function should only be called from an ofproto implementation's | |
2277 | * ->destruct() function. It is not suitable elsewhere. */ | |
abe529af | 2278 | void |
8037acb4 BP |
2279 | ofproto_rule_delete(struct ofproto *ofproto, struct classifier *cls, |
2280 | struct rule *rule) | |
2281 | OVS_REQ_WRLOCK(cls->rwlock) | |
064af421 | 2282 | { |
8037acb4 | 2283 | ofproto_delete_rule(ofproto, cls, rule); |
064af421 BP |
2284 | } |
2285 | ||
bcf84111 | 2286 | /* Returns true if 'rule' has an OpenFlow OFPAT_OUTPUT or OFPAT_ENQUEUE action |
f25d0cf3 | 2287 | * that outputs to 'port' (output to OFPP_FLOOD and OFPP_ALL doesn't count). */ |
2b07c8b1 | 2288 | bool |
4e022ec0 | 2289 | ofproto_rule_has_out_port(const struct rule *rule, ofp_port_t port) |
064af421 | 2290 | { |
7f05e7ab | 2291 | return (port == OFPP_ANY |
f25d0cf3 | 2292 | || ofpacts_output_to_port(rule->ofpacts, rule->ofpacts_len, port)); |
064af421 BP |
2293 | } |
2294 | ||
7395c052 NZ |
2295 | /* Returns true if 'rule' has group and equals group_id. */ |
2296 | bool | |
2297 | ofproto_rule_has_out_group(const struct rule *rule, uint32_t group_id) | |
2298 | { | |
2299 | return (group_id == OFPG11_ANY | |
2300 | || ofpacts_output_to_group(rule->ofpacts, rule->ofpacts_len, group_id)); | |
2301 | } | |
2302 | ||
2b07c8b1 BP |
2303 | /* Returns true if a rule related to 'op' has an OpenFlow OFPAT_OUTPUT or |
2304 | * OFPAT_ENQUEUE action that outputs to 'out_port'. */ | |
2305 | bool | |
4e022ec0 | 2306 | ofoperation_has_out_port(const struct ofoperation *op, ofp_port_t out_port) |
2b07c8b1 BP |
2307 | { |
2308 | if (ofproto_rule_has_out_port(op->rule, out_port)) { | |
2309 | return true; | |
2310 | } | |
2311 | ||
2312 | switch (op->type) { | |
2313 | case OFOPERATION_ADD: | |
2b07c8b1 BP |
2314 | case OFOPERATION_DELETE: |
2315 | return false; | |
2316 | ||
2317 | case OFOPERATION_MODIFY: | |
b277c7cc | 2318 | case OFOPERATION_REPLACE: |
2b07c8b1 BP |
2319 | return ofpacts_output_to_port(op->ofpacts, op->ofpacts_len, out_port); |
2320 | } | |
2321 | ||
2322 | NOT_REACHED(); | |
2323 | } | |
2324 | ||
bcf84111 | 2325 | /* Executes the actions indicated by 'rule' on 'packet' and credits 'rule''s |
a69553be | 2326 | * statistics appropriately. |
064af421 | 2327 | * |
bcf84111 BP |
2328 | * 'packet' doesn't necessarily have to match 'rule'. 'rule' will be credited |
2329 | * with statistics for 'packet' either way. | |
2330 | * | |
2331 | * Takes ownership of 'packet'. */ | |
5bf0e941 | 2332 | static int |
4e022ec0 | 2333 | rule_execute(struct rule *rule, ofp_port_t in_port, struct ofpbuf *packet) |
eedc0097 | 2334 | { |
bcf84111 | 2335 | struct flow flow; |
4e022ec0 | 2336 | union flow_in_port in_port_; |
eedc0097 | 2337 | |
4e022ec0 AW |
2338 | in_port_.ofp_port = in_port; |
2339 | flow_extract(packet, 0, 0, NULL, &in_port_, &flow); | |
5bf0e941 | 2340 | return rule->ofproto->ofproto_class->rule_execute(rule, &flow, packet); |
350a665f BP |
2341 | } |
2342 | ||
abe529af BP |
2343 | /* Returns true if 'rule' should be hidden from the controller. |
2344 | * | |
2345 | * Rules with priority higher than UINT16_MAX are set up by ofproto itself | |
2346 | * (e.g. by in-band control) and are intentionally hidden from the | |
2347 | * controller. */ | |
2b07c8b1 BP |
2348 | bool |
2349 | ofproto_rule_is_hidden(const struct rule *rule) | |
b6c9e612 | 2350 | { |
abe529af | 2351 | return rule->cr.priority > UINT16_MAX; |
7b064a79 | 2352 | } |
5c67e4af BP |
2353 | |
2354 | static enum oftable_flags | |
2355 | rule_get_flags(const struct rule *rule) | |
2356 | { | |
2357 | return rule->ofproto->tables[rule->table_id].flags; | |
2358 | } | |
2359 | ||
2360 | static bool | |
2361 | rule_is_modifiable(const struct rule *rule) | |
2362 | { | |
2363 | return !(rule_get_flags(rule) & OFTABLE_READONLY); | |
2364 | } | |
fa066f01 | 2365 | \f |
90bf1e07 | 2366 | static enum ofperr |
d1e2cf21 | 2367 | handle_echo_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 2368 | { |
b0421aa2 | 2369 | ofconn_send_reply(ofconn, make_echo_reply(oh)); |
064af421 | 2370 | return 0; |
064af421 BP |
2371 | } |
2372 | ||
90bf1e07 | 2373 | static enum ofperr |
d1e2cf21 | 2374 | handle_features_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 2375 | { |
64ff1d96 | 2376 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
9e1fd49b | 2377 | struct ofputil_switch_features features; |
064af421 | 2378 | struct ofport *port; |
6c1491fb | 2379 | bool arp_match_ip; |
9e1fd49b | 2380 | struct ofpbuf *b; |
c2f0373a BP |
2381 | int n_tables; |
2382 | int i; | |
064af421 | 2383 | |
9e1fd49b BP |
2384 | ofproto->ofproto_class->get_features(ofproto, &arp_match_ip, |
2385 | &features.actions); | |
cb22974d | 2386 | ovs_assert(features.actions & OFPUTIL_A_OUTPUT); /* sanity check */ |
064af421 | 2387 | |
c2f0373a BP |
2388 | /* Count only non-hidden tables in the number of tables. (Hidden tables, |
2389 | * if present, are always at the end.) */ | |
2390 | n_tables = ofproto->n_tables; | |
2391 | for (i = 0; i < ofproto->n_tables; i++) { | |
2392 | if (ofproto->tables[i].flags & OFTABLE_HIDDEN) { | |
2393 | n_tables = i; | |
2394 | break; | |
2395 | } | |
2396 | } | |
2397 | ||
9e1fd49b BP |
2398 | features.datapath_id = ofproto->datapath_id; |
2399 | features.n_buffers = pktbuf_capacity(); | |
c2f0373a | 2400 | features.n_tables = n_tables; |
9e1fd49b BP |
2401 | features.capabilities = (OFPUTIL_C_FLOW_STATS | OFPUTIL_C_TABLE_STATS | |
2402 | OFPUTIL_C_PORT_STATS | OFPUTIL_C_QUEUE_STATS); | |
6c1491fb | 2403 | if (arp_match_ip) { |
9e1fd49b | 2404 | features.capabilities |= OFPUTIL_C_ARP_MATCH_IP; |
6c1491fb | 2405 | } |
2e1ae200 JR |
2406 | /* FIXME: Fill in proper features.auxiliary_id for auxiliary connections */ |
2407 | features.auxiliary_id = 0; | |
9e1fd49b BP |
2408 | b = ofputil_encode_switch_features(&features, ofconn_get_protocol(ofconn), |
2409 | oh->xid); | |
64ff1d96 | 2410 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
9e1fd49b | 2411 | ofputil_put_switch_features_port(&port->pp, b); |
064af421 | 2412 | } |
064af421 | 2413 | |
9e1fd49b | 2414 | ofconn_send_reply(ofconn, b); |
064af421 BP |
2415 | return 0; |
2416 | } | |
064af421 | 2417 | |
90bf1e07 | 2418 | static enum ofperr |
d1e2cf21 | 2419 | handle_get_config_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 2420 | { |
64ff1d96 | 2421 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
064af421 | 2422 | struct ofp_switch_config *osc; |
f0fd1a17 | 2423 | enum ofp_config_flags flags; |
7257b535 | 2424 | struct ofpbuf *buf; |
959a2ecd | 2425 | |
064af421 | 2426 | /* Send reply. */ |
982697a4 BP |
2427 | buf = ofpraw_alloc_reply(OFPRAW_OFPT_GET_CONFIG_REPLY, oh, 0); |
2428 | osc = ofpbuf_put_uninit(buf, sizeof *osc); | |
f0fd1a17 | 2429 | flags = ofproto->frag_handling; |
2e1ae200 JR |
2430 | /* OFPC_INVALID_TTL_TO_CONTROLLER is deprecated in OF 1.3 */ |
2431 | if (oh->version < OFP13_VERSION | |
2432 | && ofconn_get_invalid_ttl_to_controller(ofconn)) { | |
f0fd1a17 PS |
2433 | flags |= OFPC_INVALID_TTL_TO_CONTROLLER; |
2434 | } | |
2435 | osc->flags = htons(flags); | |
810605a2 | 2436 | osc->miss_send_len = htons(ofconn_get_miss_send_len(ofconn)); |
b0421aa2 | 2437 | ofconn_send_reply(ofconn, buf); |
2d70a31a | 2438 | |
064af421 BP |
2439 | return 0; |
2440 | } | |
064af421 | 2441 | |
90bf1e07 | 2442 | static enum ofperr |
982697a4 | 2443 | handle_set_config(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 2444 | { |
982697a4 | 2445 | const struct ofp_switch_config *osc = ofpmsg_body(oh); |
64ff1d96 | 2446 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
d1e2cf21 | 2447 | uint16_t flags = ntohs(osc->flags); |
2d70a31a | 2448 | |
7257b535 | 2449 | if (ofconn_get_type(ofconn) != OFCONN_PRIMARY |
f4f1ea7e | 2450 | || ofconn_get_role(ofconn) != OFPCR12_ROLE_SLAVE) { |
7257b535 BP |
2451 | enum ofp_config_flags cur = ofproto->frag_handling; |
2452 | enum ofp_config_flags next = flags & OFPC_FRAG_MASK; | |
2453 | ||
cb22974d | 2454 | ovs_assert((cur & OFPC_FRAG_MASK) == cur); |
7257b535 BP |
2455 | if (cur != next) { |
2456 | if (ofproto->ofproto_class->set_frag_handling(ofproto, next)) { | |
2457 | ofproto->frag_handling = next; | |
2458 | } else { | |
2459 | VLOG_WARN_RL(&rl, "%s: unsupported fragment handling mode %s", | |
2460 | ofproto->name, | |
2461 | ofputil_frag_handling_to_string(next)); | |
2462 | } | |
064af421 BP |
2463 | } |
2464 | } | |
2e1ae200 | 2465 | /* OFPC_INVALID_TTL_TO_CONTROLLER is deprecated in OF 1.3 */ |
f0fd1a17 | 2466 | ofconn_set_invalid_ttl_to_controller(ofconn, |
2e1ae200 JR |
2467 | (oh->version < OFP13_VERSION |
2468 | && flags & OFPC_INVALID_TTL_TO_CONTROLLER)); | |
ebe482fd | 2469 | |
810605a2 | 2470 | ofconn_set_miss_send_len(ofconn, ntohs(osc->miss_send_len)); |
0ad9b732 | 2471 | |
064af421 | 2472 | return 0; |
064af421 BP |
2473 | } |
2474 | ||
9deba63b | 2475 | /* Checks whether 'ofconn' is a slave controller. If so, returns an OpenFlow |
90bf1e07 BP |
2476 | * error message code for the caller to propagate upward. Otherwise, returns |
2477 | * 0. | |
2478 | * | |
2479 | * The log message mentions 'msg_type'. */ | |
2480 | static enum ofperr | |
2481 | reject_slave_controller(struct ofconn *ofconn) | |
9deba63b | 2482 | { |
1ce0a5fa | 2483 | if (ofconn_get_type(ofconn) == OFCONN_PRIMARY |
f4f1ea7e | 2484 | && ofconn_get_role(ofconn) == OFPCR12_ROLE_SLAVE) { |
90bf1e07 | 2485 | return OFPERR_OFPBRC_EPERM; |
9deba63b BP |
2486 | } else { |
2487 | return 0; | |
2488 | } | |
2489 | } | |
2490 | ||
9cae45dc JR |
2491 | /* Finds the OFPACT_METER action, if any, in the 'ofpacts_len' bytes of |
2492 | * 'ofpacts'. If found, returns its meter ID; if not, returns 0. | |
2493 | * | |
2494 | * This function relies on the order of 'ofpacts' being correct (as checked by | |
2495 | * ofpacts_verify()). */ | |
2496 | static uint32_t | |
2497 | find_meter(const struct ofpact ofpacts[], size_t ofpacts_len) | |
2498 | { | |
2499 | const struct ofpact *a; | |
2500 | ||
2501 | OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) { | |
2502 | enum ovs_instruction_type inst; | |
2503 | ||
2504 | inst = ovs_instruction_type_from_ofpact_type(a->type); | |
2505 | if (a->type == OFPACT_METER) { | |
2506 | return ofpact_get_METER(a)->meter_id; | |
2507 | } else if (inst > OVSINST_OFPIT13_METER) { | |
2508 | break; | |
2509 | } | |
2510 | } | |
2511 | ||
2512 | return 0; | |
2513 | } | |
2514 | ||
e3b56933 JR |
2515 | /* Checks that the 'ofpacts_len' bytes of actions in 'ofpacts' are appropriate |
2516 | * for a packet with the prerequisites satisfied by 'flow' in table 'table_id'. | |
9cae45dc JR |
2517 | * 'flow' may be temporarily modified, but is restored at return. |
2518 | */ | |
2519 | static enum ofperr | |
2520 | ofproto_check_ofpacts(struct ofproto *ofproto, | |
2521 | const struct ofpact ofpacts[], size_t ofpacts_len, | |
e3b56933 | 2522 | struct flow *flow, uint8_t table_id) |
9cae45dc JR |
2523 | { |
2524 | enum ofperr error; | |
2525 | uint32_t mid; | |
2526 | ||
430dbb14 AW |
2527 | error = ofpacts_check(ofpacts, ofpacts_len, flow, |
2528 | u16_to_ofp(ofproto->max_ports), table_id); | |
9cae45dc JR |
2529 | if (error) { |
2530 | return error; | |
2531 | } | |
2532 | ||
2533 | mid = find_meter(ofpacts, ofpacts_len); | |
2534 | if (mid && ofproto_get_provider_meter_id(ofproto, mid) == UINT32_MAX) { | |
2535 | return OFPERR_OFPMMFC_INVALID_METER; | |
2536 | } | |
2537 | return 0; | |
2538 | } | |
2539 | ||
90bf1e07 | 2540 | static enum ofperr |
982697a4 | 2541 | handle_packet_out(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 2542 | { |
64ff1d96 | 2543 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
c6a93eb7 BP |
2544 | struct ofputil_packet_out po; |
2545 | struct ofpbuf *payload; | |
f25d0cf3 BP |
2546 | uint64_t ofpacts_stub[1024 / 8]; |
2547 | struct ofpbuf ofpacts; | |
ae412e7d | 2548 | struct flow flow; |
4e022ec0 | 2549 | union flow_in_port in_port_; |
90bf1e07 | 2550 | enum ofperr error; |
064af421 | 2551 | |
ac51afaf BP |
2552 | COVERAGE_INC(ofproto_packet_out); |
2553 | ||
76589937 | 2554 | error = reject_slave_controller(ofconn); |
9deba63b | 2555 | if (error) { |
f25d0cf3 | 2556 | goto exit; |
9deba63b BP |
2557 | } |
2558 | ||
c6a93eb7 | 2559 | /* Decode message. */ |
f25d0cf3 | 2560 | ofpbuf_use_stub(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); |
982697a4 | 2561 | error = ofputil_decode_packet_out(&po, oh, &ofpacts); |
064af421 | 2562 | if (error) { |
f25d0cf3 | 2563 | goto exit_free_ofpacts; |
064af421 | 2564 | } |
430dbb14 | 2565 | if (ofp_to_u16(po.in_port) >= p->max_ports |
4e022ec0 | 2566 | && ofp_to_u16(po.in_port) < ofp_to_u16(OFPP_MAX)) { |
2e1bfcb6 | 2567 | error = OFPERR_OFPBRC_BAD_PORT; |
91858960 BP |
2568 | goto exit_free_ofpacts; |
2569 | } | |
064af421 | 2570 | |
5cb7a798 | 2571 | |
ac51afaf | 2572 | /* Get payload. */ |
c6a93eb7 BP |
2573 | if (po.buffer_id != UINT32_MAX) { |
2574 | error = ofconn_pktbuf_retrieve(ofconn, po.buffer_id, &payload, NULL); | |
2575 | if (error || !payload) { | |
f25d0cf3 | 2576 | goto exit_free_ofpacts; |
064af421 | 2577 | } |
064af421 | 2578 | } else { |
bb622f82 BP |
2579 | /* Ensure that the L3 header is 32-bit aligned. */ |
2580 | payload = ofpbuf_clone_data_with_headroom(po.packet, po.packet_len, 2); | |
e1154f71 BP |
2581 | } |
2582 | ||
548de4dd | 2583 | /* Verify actions against packet, then send packet if successful. */ |
4e022ec0 AW |
2584 | in_port_.ofp_port = po.in_port; |
2585 | flow_extract(payload, 0, 0, NULL, &in_port_, &flow); | |
e3b56933 | 2586 | error = ofproto_check_ofpacts(p, po.ofpacts, po.ofpacts_len, &flow, 0); |
548de4dd BP |
2587 | if (!error) { |
2588 | error = p->ofproto_class->packet_out(p, payload, &flow, | |
2589 | po.ofpacts, po.ofpacts_len); | |
2590 | } | |
c6a93eb7 | 2591 | ofpbuf_delete(payload); |
abe529af | 2592 | |
f25d0cf3 BP |
2593 | exit_free_ofpacts: |
2594 | ofpbuf_uninit(&ofpacts); | |
2595 | exit: | |
abe529af | 2596 | return error; |
064af421 BP |
2597 | } |
2598 | ||
2599 | static void | |
9e1fd49b BP |
2600 | update_port_config(struct ofport *port, |
2601 | enum ofputil_port_config config, | |
2602 | enum ofputil_port_config mask) | |
064af421 | 2603 | { |
9e1fd49b BP |
2604 | enum ofputil_port_config old_config = port->pp.config; |
2605 | enum ofputil_port_config toggle; | |
abe529af | 2606 | |
9e1fd49b BP |
2607 | toggle = (config ^ port->pp.config) & mask; |
2608 | if (toggle & OFPUTIL_PC_PORT_DOWN) { | |
2609 | if (config & OFPUTIL_PC_PORT_DOWN) { | |
4b609110 | 2610 | netdev_turn_flags_off(port->netdev, NETDEV_UP, NULL); |
064af421 | 2611 | } else { |
4b609110 | 2612 | netdev_turn_flags_on(port->netdev, NETDEV_UP, NULL); |
064af421 | 2613 | } |
9e1fd49b | 2614 | toggle &= ~OFPUTIL_PC_PORT_DOWN; |
064af421 | 2615 | } |
abe529af | 2616 | |
9e1fd49b BP |
2617 | port->pp.config ^= toggle; |
2618 | if (port->pp.config != old_config) { | |
abe529af | 2619 | port->ofproto->ofproto_class->port_reconfigured(port, old_config); |
064af421 BP |
2620 | } |
2621 | } | |
2622 | ||
90bf1e07 | 2623 | static enum ofperr |
d1e2cf21 | 2624 | handle_port_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 2625 | { |
64ff1d96 | 2626 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
9e1fd49b | 2627 | struct ofputil_port_mod pm; |
064af421 | 2628 | struct ofport *port; |
9e1fd49b | 2629 | enum ofperr error; |
064af421 | 2630 | |
76589937 | 2631 | error = reject_slave_controller(ofconn); |
9deba63b BP |
2632 | if (error) { |
2633 | return error; | |
2634 | } | |
064af421 | 2635 | |
9e1fd49b BP |
2636 | error = ofputil_decode_port_mod(oh, &pm); |
2637 | if (error) { | |
2638 | return error; | |
2639 | } | |
2640 | ||
2641 | port = ofproto_get_port(p, pm.port_no); | |
064af421 | 2642 | if (!port) { |
90bf1e07 | 2643 | return OFPERR_OFPPMFC_BAD_PORT; |
9e1fd49b | 2644 | } else if (!eth_addr_equals(port->pp.hw_addr, pm.hw_addr)) { |
90bf1e07 | 2645 | return OFPERR_OFPPMFC_BAD_HW_ADDR; |
064af421 | 2646 | } else { |
9e1fd49b BP |
2647 | update_port_config(port, pm.config, pm.mask); |
2648 | if (pm.advertise) { | |
2649 | netdev_set_advertisements(port->netdev, pm.advertise); | |
064af421 BP |
2650 | } |
2651 | } | |
2652 | return 0; | |
2653 | } | |
2654 | ||
90bf1e07 | 2655 | static enum ofperr |
3269c562 | 2656 | handle_desc_stats_request(struct ofconn *ofconn, |
982697a4 | 2657 | const struct ofp_header *request) |
064af421 | 2658 | { |
061bfea4 BP |
2659 | static const char *default_mfr_desc = "Nicira, Inc."; |
2660 | static const char *default_hw_desc = "Open vSwitch"; | |
2661 | static const char *default_sw_desc = VERSION; | |
2662 | static const char *default_serial_desc = "None"; | |
2663 | static const char *default_dp_desc = "None"; | |
2664 | ||
64ff1d96 | 2665 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 BP |
2666 | struct ofp_desc_stats *ods; |
2667 | struct ofpbuf *msg; | |
2668 | ||
982697a4 BP |
2669 | msg = ofpraw_alloc_stats_reply(request, 0); |
2670 | ods = ofpbuf_put_zeros(msg, sizeof *ods); | |
061bfea4 BP |
2671 | ovs_strlcpy(ods->mfr_desc, p->mfr_desc ? p->mfr_desc : default_mfr_desc, |
2672 | sizeof ods->mfr_desc); | |
2673 | ovs_strlcpy(ods->hw_desc, p->hw_desc ? p->hw_desc : default_hw_desc, | |
2674 | sizeof ods->hw_desc); | |
2675 | ovs_strlcpy(ods->sw_desc, p->sw_desc ? p->sw_desc : default_sw_desc, | |
2676 | sizeof ods->sw_desc); | |
2677 | ovs_strlcpy(ods->serial_num, | |
2678 | p->serial_desc ? p->serial_desc : default_serial_desc, | |
2679 | sizeof ods->serial_num); | |
2680 | ovs_strlcpy(ods->dp_desc, p->dp_desc ? p->dp_desc : default_dp_desc, | |
2681 | sizeof ods->dp_desc); | |
b0421aa2 | 2682 | ofconn_send_reply(ofconn, msg); |
064af421 BP |
2683 | |
2684 | return 0; | |
2685 | } | |
2686 | ||
90bf1e07 | 2687 | static enum ofperr |
3269c562 | 2688 | handle_table_stats_request(struct ofconn *ofconn, |
982697a4 | 2689 | const struct ofp_header *request) |
064af421 | 2690 | { |
64ff1d96 | 2691 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
307975da | 2692 | struct ofp12_table_stats *ots; |
064af421 | 2693 | struct ofpbuf *msg; |
c2f0373a | 2694 | int n_tables; |
6c1491fb | 2695 | size_t i; |
064af421 | 2696 | |
307975da SH |
2697 | /* Set up default values. |
2698 | * | |
2699 | * ofp12_table_stats is used as a generic structure as | |
2700 | * it is able to hold all the fields for ofp10_table_stats | |
2701 | * and ofp11_table_stats (and of course itself). | |
2702 | */ | |
2703 | ots = xcalloc(p->n_tables, sizeof *ots); | |
6c1491fb BP |
2704 | for (i = 0; i < p->n_tables; i++) { |
2705 | ots[i].table_id = i; | |
35aa7a21 | 2706 | sprintf(ots[i].name, "table%zu", i); |
307975da SH |
2707 | ots[i].match = htonll(OFPXMT12_MASK); |
2708 | ots[i].wildcards = htonll(OFPXMT12_MASK); | |
e78b61f6 BP |
2709 | ots[i].write_actions = htonl(OFPAT11_OUTPUT); |
2710 | ots[i].apply_actions = htonl(OFPAT11_OUTPUT); | |
307975da SH |
2711 | ots[i].write_setfields = htonll(OFPXMT12_MASK); |
2712 | ots[i].apply_setfields = htonll(OFPXMT12_MASK); | |
2713 | ots[i].metadata_match = htonll(UINT64_MAX); | |
2714 | ots[i].metadata_write = htonll(UINT64_MAX); | |
2715 | ots[i].instructions = htonl(OFPIT11_ALL); | |
2716 | ots[i].config = htonl(OFPTC11_TABLE_MISS_MASK); | |
6c1491fb | 2717 | ots[i].max_entries = htonl(1000000); /* An arbitrary big number. */ |
0b4f2078 | 2718 | ovs_rwlock_rdlock(&p->tables[i].cls.rwlock); |
d0918789 | 2719 | ots[i].active_count = htonl(classifier_count(&p->tables[i].cls)); |
0b4f2078 | 2720 | ovs_rwlock_unlock(&p->tables[i].cls.rwlock); |
6c1491fb | 2721 | } |
064af421 | 2722 | |
6c1491fb | 2723 | p->ofproto_class->get_tables(p, ots); |
064af421 | 2724 | |
c2f0373a BP |
2725 | /* Post-process the tables, dropping hidden tables. */ |
2726 | n_tables = p->n_tables; | |
254750ce BP |
2727 | for (i = 0; i < p->n_tables; i++) { |
2728 | const struct oftable *table = &p->tables[i]; | |
2729 | ||
c2f0373a BP |
2730 | if (table->flags & OFTABLE_HIDDEN) { |
2731 | n_tables = i; | |
2732 | break; | |
2733 | } | |
2734 | ||
254750ce BP |
2735 | if (table->name) { |
2736 | ovs_strzcpy(ots[i].name, table->name, sizeof ots[i].name); | |
2737 | } | |
2738 | ||
2739 | if (table->max_flows < ntohl(ots[i].max_entries)) { | |
2740 | ots[i].max_entries = htonl(table->max_flows); | |
2741 | } | |
2742 | } | |
2743 | ||
c2f0373a | 2744 | msg = ofputil_encode_table_stats_reply(ots, n_tables, request); |
b0421aa2 | 2745 | ofconn_send_reply(ofconn, msg); |
307975da SH |
2746 | |
2747 | free(ots); | |
2748 | ||
064af421 BP |
2749 | return 0; |
2750 | } | |
2751 | ||
abaad8cf | 2752 | static void |
63f2140a | 2753 | append_port_stat(struct ofport *port, struct list *replies) |
abaad8cf | 2754 | { |
f8e4867e | 2755 | struct ofputil_port_stats ops = { .port_no = port->pp.port_no }; |
abaad8cf | 2756 | |
65e0be10 BP |
2757 | calc_duration(port->created, time_msec(), |
2758 | &ops.duration_sec, &ops.duration_nsec); | |
2759 | ||
d295e8e9 JP |
2760 | /* Intentionally ignore return value, since errors will set |
2761 | * 'stats' to all-1s, which is correct for OpenFlow, and | |
abaad8cf | 2762 | * netdev_get_stats() will log errors. */ |
f8e4867e SH |
2763 | ofproto_port_get_stats(port, &ops.stats); |
2764 | ||
2765 | ofputil_append_port_stat(replies, &ops); | |
abaad8cf JP |
2766 | } |
2767 | ||
90bf1e07 | 2768 | static enum ofperr |
63f2140a | 2769 | handle_port_stats_request(struct ofconn *ofconn, |
982697a4 | 2770 | const struct ofp_header *request) |
064af421 | 2771 | { |
64ff1d96 | 2772 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 | 2773 | struct ofport *port; |
63f2140a | 2774 | struct list replies; |
4e022ec0 | 2775 | ofp_port_t port_no; |
f8e4867e SH |
2776 | enum ofperr error; |
2777 | ||
2778 | error = ofputil_decode_port_stats_request(request, &port_no); | |
2779 | if (error) { | |
2780 | return error; | |
2781 | } | |
064af421 | 2782 | |
982697a4 | 2783 | ofpmp_init(&replies, request); |
7f05e7ab | 2784 | if (port_no != OFPP_ANY) { |
f8e4867e | 2785 | port = ofproto_get_port(p, port_no); |
abaad8cf | 2786 | if (port) { |
63f2140a | 2787 | append_port_stat(port, &replies); |
abaad8cf JP |
2788 | } |
2789 | } else { | |
4e8e4213 | 2790 | HMAP_FOR_EACH (port, hmap_node, &p->ports) { |
63f2140a | 2791 | append_port_stat(port, &replies); |
abaad8cf | 2792 | } |
064af421 BP |
2793 | } |
2794 | ||
63f2140a | 2795 | ofconn_send_replies(ofconn, &replies); |
064af421 BP |
2796 | return 0; |
2797 | } | |
2798 | ||
2be393ed JP |
2799 | static enum ofperr |
2800 | handle_port_desc_stats_request(struct ofconn *ofconn, | |
982697a4 | 2801 | const struct ofp_header *request) |
2be393ed JP |
2802 | { |
2803 | struct ofproto *p = ofconn_get_ofproto(ofconn); | |
2e3fa633 | 2804 | enum ofp_version version; |
2be393ed JP |
2805 | struct ofport *port; |
2806 | struct list replies; | |
2807 | ||
982697a4 | 2808 | ofpmp_init(&replies, request); |
2be393ed | 2809 | |
2e3fa633 | 2810 | version = ofputil_protocol_to_ofp_version(ofconn_get_protocol(ofconn)); |
2be393ed | 2811 | HMAP_FOR_EACH (port, hmap_node, &p->ports) { |
2e3fa633 | 2812 | ofputil_append_port_desc_stats_reply(version, &port->pp, &replies); |
2be393ed JP |
2813 | } |
2814 | ||
2815 | ofconn_send_replies(ofconn, &replies); | |
2816 | return 0; | |
2817 | } | |
2818 | ||
98eaac36 JR |
2819 | static uint32_t |
2820 | hash_cookie(ovs_be64 cookie) | |
2821 | { | |
2822 | return hash_2words((OVS_FORCE uint64_t)cookie >> 32, | |
2823 | (OVS_FORCE uint64_t)cookie); | |
2824 | } | |
2825 | ||
2826 | static void | |
2827 | cookies_insert(struct ofproto *ofproto, struct rule *rule) | |
2828 | { | |
2829 | hindex_insert(&ofproto->cookies, &rule->cookie_node, | |
2830 | hash_cookie(rule->flow_cookie)); | |
2831 | } | |
2832 | ||
2833 | static void | |
2834 | cookies_remove(struct ofproto *ofproto, struct rule *rule) | |
2835 | { | |
2836 | hindex_remove(&ofproto->cookies, &rule->cookie_node); | |
2837 | } | |
2838 | ||
2839 | static void | |
2840 | ofproto_rule_change_cookie(struct ofproto *ofproto, struct rule *rule, | |
2841 | ovs_be64 new_cookie) | |
2842 | { | |
2843 | if (new_cookie != rule->flow_cookie) { | |
2844 | cookies_remove(ofproto, rule); | |
2845 | ||
884e1dc4 | 2846 | ovs_rwlock_wrlock(&rule->rwlock); |
98eaac36 | 2847 | rule->flow_cookie = new_cookie; |
884e1dc4 | 2848 | ovs_rwlock_unlock(&rule->rwlock); |
98eaac36 JR |
2849 | |
2850 | cookies_insert(ofproto, rule); | |
2851 | } | |
2852 | } | |
2853 | ||
c6ebb8fb | 2854 | static void |
65e0be10 BP |
2855 | calc_duration(long long int start, long long int now, |
2856 | uint32_t *sec, uint32_t *nsec) | |
c6ebb8fb | 2857 | { |
f27f2134 | 2858 | long long int msecs = now - start; |
588cd7b5 BP |
2859 | *sec = msecs / 1000; |
2860 | *nsec = (msecs % 1000) * (1000 * 1000); | |
2861 | } | |
2862 | ||
48266274 BP |
2863 | /* Checks whether 'table_id' is 0xff or a valid table ID in 'ofproto'. Returns |
2864 | * 0 if 'table_id' is OK, otherwise an OpenFlow error code. */ | |
90bf1e07 | 2865 | static enum ofperr |
48266274 BP |
2866 | check_table_id(const struct ofproto *ofproto, uint8_t table_id) |
2867 | { | |
2868 | return (table_id == 0xff || table_id < ofproto->n_tables | |
2869 | ? 0 | |
c22c56bd | 2870 | : OFPERR_OFPBRC_BAD_TABLE_ID); |
48266274 BP |
2871 | |
2872 | } | |
2873 | ||
5c67e4af | 2874 | static struct oftable * |
d4ce8a49 | 2875 | next_visible_table(const struct ofproto *ofproto, uint8_t table_id) |
5c67e4af BP |
2876 | { |
2877 | struct oftable *table; | |
2878 | ||
2879 | for (table = &ofproto->tables[table_id]; | |
2880 | table < &ofproto->tables[ofproto->n_tables]; | |
2881 | table++) { | |
2882 | if (!(table->flags & OFTABLE_HIDDEN)) { | |
2883 | return table; | |
2884 | } | |
2885 | } | |
2886 | ||
2887 | return NULL; | |
2888 | } | |
2889 | ||
d0918789 | 2890 | static struct oftable * |
d4ce8a49 | 2891 | first_matching_table(const struct ofproto *ofproto, uint8_t table_id) |
064af421 | 2892 | { |
6c1491fb | 2893 | if (table_id == 0xff) { |
5c67e4af | 2894 | return next_visible_table(ofproto, 0); |
6c1491fb BP |
2895 | } else if (table_id < ofproto->n_tables) { |
2896 | return &ofproto->tables[table_id]; | |
a02e5331 | 2897 | } else { |
6c1491fb | 2898 | return NULL; |
a02e5331 | 2899 | } |
064af421 BP |
2900 | } |
2901 | ||
d0918789 | 2902 | static struct oftable * |
d4ce8a49 BP |
2903 | next_matching_table(const struct ofproto *ofproto, |
2904 | const struct oftable *table, uint8_t table_id) | |
6c1491fb | 2905 | { |
5c67e4af BP |
2906 | return (table_id == 0xff |
2907 | ? next_visible_table(ofproto, (table - ofproto->tables) + 1) | |
6c1491fb BP |
2908 | : NULL); |
2909 | } | |
2910 | ||
d0918789 | 2911 | /* Assigns TABLE to each oftable, in turn, that matches TABLE_ID in OFPROTO: |
6c1491fb BP |
2912 | * |
2913 | * - If TABLE_ID is 0xff, this iterates over every classifier table in | |
5c67e4af | 2914 | * OFPROTO, skipping tables marked OFTABLE_HIDDEN. |
6c1491fb BP |
2915 | * |
2916 | * - If TABLE_ID is the number of a table in OFPROTO, then the loop iterates | |
5c67e4af BP |
2917 | * only once, for that table. (This can be used to access tables marked |
2918 | * OFTABLE_HIDDEN.) | |
6c1491fb | 2919 | * |
48266274 BP |
2920 | * - Otherwise, TABLE_ID isn't valid for OFPROTO, so the loop won't be |
2921 | * entered at all. (Perhaps you should have validated TABLE_ID with | |
2922 | * check_table_id().) | |
6c1491fb BP |
2923 | * |
2924 | * All parameters are evaluated multiple times. | |
2925 | */ | |
d0918789 BP |
2926 | #define FOR_EACH_MATCHING_TABLE(TABLE, TABLE_ID, OFPROTO) \ |
2927 | for ((TABLE) = first_matching_table(OFPROTO, TABLE_ID); \ | |
2928 | (TABLE) != NULL; \ | |
2929 | (TABLE) = next_matching_table(OFPROTO, TABLE, TABLE_ID)) | |
6c1491fb | 2930 | |
9ed18e46 BP |
2931 | /* Searches 'ofproto' for rules in table 'table_id' (or in all tables, if |
2932 | * 'table_id' is 0xff) that match 'match' in the "loose" way required for | |
2933 | * OpenFlow OFPFC_MODIFY and OFPFC_DELETE requests and puts them on list | |
2934 | * 'rules'. | |
2935 | * | |
7f05e7ab | 2936 | * If 'out_port' is anything other than OFPP_ANY, then only rules that output |
9ed18e46 BP |
2937 | * to 'out_port' are included. |
2938 | * | |
2939 | * Hidden rules are always omitted. | |
2940 | * | |
2941 | * Returns 0 on success, otherwise an OpenFlow error code. */ | |
90bf1e07 | 2942 | static enum ofperr |
9ed18e46 | 2943 | collect_rules_loose(struct ofproto *ofproto, uint8_t table_id, |
81a76618 | 2944 | const struct match *match, |
e729e793 | 2945 | ovs_be64 cookie, ovs_be64 cookie_mask, |
7395c052 NZ |
2946 | ofp_port_t out_port, uint32_t out_group, |
2947 | struct list *rules) | |
9ed18e46 | 2948 | { |
d0918789 | 2949 | struct oftable *table; |
81a76618 | 2950 | struct cls_rule cr; |
90bf1e07 | 2951 | enum ofperr error; |
48266274 BP |
2952 | |
2953 | error = check_table_id(ofproto, table_id); | |
2954 | if (error) { | |
2955 | return error; | |
2956 | } | |
9ed18e46 BP |
2957 | |
2958 | list_init(rules); | |
81a76618 | 2959 | cls_rule_init(&cr, match, 0); |
98eaac36 JR |
2960 | |
2961 | if (cookie_mask == htonll(UINT64_MAX)) { | |
2962 | struct rule *rule; | |
2963 | ||
2964 | HINDEX_FOR_EACH_WITH_HASH (rule, cookie_node, hash_cookie(cookie), | |
2965 | &ofproto->cookies) { | |
2966 | if (table_id != rule->table_id && table_id != 0xff) { | |
2967 | continue; | |
2968 | } | |
2969 | if (ofproto_rule_is_hidden(rule)) { | |
2970 | continue; | |
2971 | } | |
2972 | if (cls_rule_is_loose_match(&rule->cr, &cr.match)) { | |
2973 | if (rule->pending) { | |
2974 | error = OFPROTO_POSTPONE; | |
2975 | goto exit; | |
2976 | } | |
2977 | if (rule->flow_cookie == cookie /* Hash collisions possible. */ | |
2978 | && ofproto_rule_has_out_port(rule, out_port)) { | |
2979 | list_push_back(rules, &rule->ofproto_node); | |
2980 | } | |
2981 | } | |
2982 | } | |
2983 | goto exit; | |
2984 | } | |
2985 | ||
d0918789 | 2986 | FOR_EACH_MATCHING_TABLE (table, table_id, ofproto) { |
9ed18e46 BP |
2987 | struct cls_cursor cursor; |
2988 | struct rule *rule; | |
2989 | ||
0b4f2078 | 2990 | ovs_rwlock_rdlock(&table->cls.rwlock); |
81a76618 | 2991 | cls_cursor_init(&cursor, &table->cls, &cr); |
9ed18e46 | 2992 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { |
7ee20df1 | 2993 | if (rule->pending) { |
0b4f2078 | 2994 | ovs_rwlock_unlock(&table->cls.rwlock); |
48d28ac1 BP |
2995 | error = OFPROTO_POSTPONE; |
2996 | goto exit; | |
7ee20df1 | 2997 | } |
2b07c8b1 BP |
2998 | if (!ofproto_rule_is_hidden(rule) |
2999 | && ofproto_rule_has_out_port(rule, out_port) | |
7395c052 | 3000 | && ofproto_rule_has_out_group(rule, out_group) |
e729e793 | 3001 | && !((rule->flow_cookie ^ cookie) & cookie_mask)) { |
9ed18e46 BP |
3002 | list_push_back(rules, &rule->ofproto_node); |
3003 | } | |
3004 | } | |
0b4f2078 | 3005 | ovs_rwlock_unlock(&table->cls.rwlock); |
9ed18e46 | 3006 | } |
48d28ac1 BP |
3007 | |
3008 | exit: | |
3009 | cls_rule_destroy(&cr); | |
3010 | return error; | |
9ed18e46 BP |
3011 | } |
3012 | ||
3013 | /* Searches 'ofproto' for rules in table 'table_id' (or in all tables, if | |
3014 | * 'table_id' is 0xff) that match 'match' in the "strict" way required for | |
3015 | * OpenFlow OFPFC_MODIFY_STRICT and OFPFC_DELETE_STRICT requests and puts them | |
3016 | * on list 'rules'. | |
3017 | * | |
7f05e7ab | 3018 | * If 'out_port' is anything other than OFPP_ANY, then only rules that output |
9ed18e46 BP |
3019 | * to 'out_port' are included. |
3020 | * | |
3021 | * Hidden rules are always omitted. | |
3022 | * | |
3023 | * Returns 0 on success, otherwise an OpenFlow error code. */ | |
90bf1e07 | 3024 | static enum ofperr |
9ed18e46 | 3025 | collect_rules_strict(struct ofproto *ofproto, uint8_t table_id, |
81a76618 | 3026 | const struct match *match, unsigned int priority, |
e729e793 | 3027 | ovs_be64 cookie, ovs_be64 cookie_mask, |
7395c052 NZ |
3028 | ofp_port_t out_port, uint32_t out_group, |
3029 | struct list *rules) | |
9ed18e46 | 3030 | { |
d0918789 | 3031 | struct oftable *table; |
81a76618 | 3032 | struct cls_rule cr; |
48266274 BP |
3033 | int error; |
3034 | ||
3035 | error = check_table_id(ofproto, table_id); | |
3036 | if (error) { | |
3037 | return error; | |
3038 | } | |
9ed18e46 BP |
3039 | |
3040 | list_init(rules); | |
81a76618 | 3041 | cls_rule_init(&cr, match, priority); |
98eaac36 JR |
3042 | |
3043 | if (cookie_mask == htonll(UINT64_MAX)) { | |
3044 | struct rule *rule; | |
3045 | ||
3046 | HINDEX_FOR_EACH_WITH_HASH (rule, cookie_node, hash_cookie(cookie), | |
3047 | &ofproto->cookies) { | |
3048 | if (table_id != rule->table_id && table_id != 0xff) { | |
3049 | continue; | |
3050 | } | |
3051 | if (ofproto_rule_is_hidden(rule)) { | |
3052 | continue; | |
3053 | } | |
3054 | if (cls_rule_equal(&rule->cr, &cr)) { | |
3055 | if (rule->pending) { | |
3056 | error = OFPROTO_POSTPONE; | |
3057 | goto exit; | |
3058 | } | |
3059 | if (rule->flow_cookie == cookie /* Hash collisions possible. */ | |
3060 | && ofproto_rule_has_out_port(rule, out_port)) { | |
3061 | list_push_back(rules, &rule->ofproto_node); | |
3062 | } | |
3063 | } | |
3064 | } | |
3065 | goto exit; | |
3066 | } | |
3067 | ||
d0918789 | 3068 | FOR_EACH_MATCHING_TABLE (table, table_id, ofproto) { |
9ed18e46 BP |
3069 | struct rule *rule; |
3070 | ||
0b4f2078 | 3071 | ovs_rwlock_rdlock(&table->cls.rwlock); |
d0918789 | 3072 | rule = rule_from_cls_rule(classifier_find_rule_exactly(&table->cls, |
81a76618 | 3073 | &cr)); |
0b4f2078 | 3074 | ovs_rwlock_unlock(&table->cls.rwlock); |
9ed18e46 | 3075 | if (rule) { |
7ee20df1 | 3076 | if (rule->pending) { |
48d28ac1 BP |
3077 | error = OFPROTO_POSTPONE; |
3078 | goto exit; | |
7ee20df1 | 3079 | } |
2b07c8b1 BP |
3080 | if (!ofproto_rule_is_hidden(rule) |
3081 | && ofproto_rule_has_out_port(rule, out_port) | |
7395c052 | 3082 | && ofproto_rule_has_out_group(rule, out_group) |
e729e793 | 3083 | && !((rule->flow_cookie ^ cookie) & cookie_mask)) { |
9ed18e46 BP |
3084 | list_push_back(rules, &rule->ofproto_node); |
3085 | } | |
3086 | } | |
3087 | } | |
48d28ac1 BP |
3088 | |
3089 | exit: | |
3090 | cls_rule_destroy(&cr); | |
9ed18e46 BP |
3091 | return 0; |
3092 | } | |
3093 | ||
f27f2134 BP |
3094 | /* Returns 'age_ms' (a duration in milliseconds), converted to seconds and |
3095 | * forced into the range of a uint16_t. */ | |
3096 | static int | |
3097 | age_secs(long long int age_ms) | |
3098 | { | |
3099 | return (age_ms < 0 ? 0 | |
3100 | : age_ms >= UINT16_MAX * 1000 ? UINT16_MAX | |
3101 | : (unsigned int) age_ms / 1000); | |
3102 | } | |
3103 | ||
90bf1e07 | 3104 | static enum ofperr |
63f2140a | 3105 | handle_flow_stats_request(struct ofconn *ofconn, |
982697a4 | 3106 | const struct ofp_header *request) |
064af421 | 3107 | { |
64ff1d96 | 3108 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
81d1ea94 | 3109 | struct ofputil_flow_stats_request fsr; |
63f2140a | 3110 | struct list replies; |
9ed18e46 BP |
3111 | struct list rules; |
3112 | struct rule *rule; | |
90bf1e07 | 3113 | enum ofperr error; |
09246b99 | 3114 | |
982697a4 | 3115 | error = ofputil_decode_flow_stats_request(&fsr, request); |
09246b99 BP |
3116 | if (error) { |
3117 | return error; | |
3118 | } | |
3119 | ||
9ed18e46 | 3120 | error = collect_rules_loose(ofproto, fsr.table_id, &fsr.match, |
e729e793 | 3121 | fsr.cookie, fsr.cookie_mask, |
7395c052 | 3122 | fsr.out_port, fsr.out_group, &rules); |
9ed18e46 BP |
3123 | if (error) { |
3124 | return error; | |
3125 | } | |
5ecc9d81 | 3126 | |
982697a4 | 3127 | ofpmp_init(&replies, request); |
9ed18e46 | 3128 | LIST_FOR_EACH (rule, ofproto_node, &rules) { |
f27f2134 | 3129 | long long int now = time_msec(); |
9ed18e46 BP |
3130 | struct ofputil_flow_stats fs; |
3131 | ||
5cb7a798 | 3132 | minimatch_expand(&rule->cr.match, &fs.match); |
81a76618 | 3133 | fs.priority = rule->cr.priority; |
9ed18e46 BP |
3134 | fs.cookie = rule->flow_cookie; |
3135 | fs.table_id = rule->table_id; | |
65e0be10 | 3136 | calc_duration(rule->created, now, &fs.duration_sec, &fs.duration_nsec); |
f27f2134 BP |
3137 | fs.idle_age = age_secs(now - rule->used); |
3138 | fs.hard_age = age_secs(now - rule->modified); | |
9ed18e46 BP |
3139 | ofproto->ofproto_class->rule_get_stats(rule, &fs.packet_count, |
3140 | &fs.byte_count); | |
f25d0cf3 BP |
3141 | fs.ofpacts = rule->ofpacts; |
3142 | fs.ofpacts_len = rule->ofpacts_len; | |
a3779dbc EJ |
3143 | |
3144 | ovs_mutex_lock(&rule->timeout_mutex); | |
3145 | fs.idle_timeout = rule->idle_timeout; | |
3146 | fs.hard_timeout = rule->hard_timeout; | |
3147 | ovs_mutex_unlock(&rule->timeout_mutex); | |
3148 | ||
0fb88c18 | 3149 | fs.flags = 0; |
2e1ae200 | 3150 | if (rule->send_flow_removed) { |
0fb88c18 BP |
3151 | fs.flags |= OFPUTIL_FF_SEND_FLOW_REM; |
3152 | /* FIXME: Implement OFPUTIL_FF_NO_PKT_COUNTS and | |
3153 | OFPUTIL_FF_NO_BYT_COUNTS. */ | |
2e1ae200 | 3154 | } |
9ed18e46 | 3155 | ofputil_append_flow_stats_reply(&fs, &replies); |
3c4486a5 | 3156 | } |
63f2140a | 3157 | ofconn_send_replies(ofconn, &replies); |
5ecc9d81 | 3158 | |
09246b99 BP |
3159 | return 0; |
3160 | } | |
3161 | ||
4f2cad2c | 3162 | static void |
3394b5b6 | 3163 | flow_stats_ds(struct rule *rule, struct ds *results) |
4f2cad2c | 3164 | { |
4f2cad2c | 3165 | uint64_t packet_count, byte_count; |
4f2cad2c | 3166 | |
abe529af BP |
3167 | rule->ofproto->ofproto_class->rule_get_stats(rule, |
3168 | &packet_count, &byte_count); | |
4f2cad2c | 3169 | |
6c1491fb BP |
3170 | if (rule->table_id != 0) { |
3171 | ds_put_format(results, "table_id=%"PRIu8", ", rule->table_id); | |
3172 | } | |
4f2cad2c JP |
3173 | ds_put_format(results, "duration=%llds, ", |
3174 | (time_msec() - rule->created) / 1000); | |
52ae00b3 | 3175 | ds_put_format(results, "priority=%u, ", rule->cr.priority); |
4f2cad2c JP |
3176 | ds_put_format(results, "n_packets=%"PRIu64", ", packet_count); |
3177 | ds_put_format(results, "n_bytes=%"PRIu64", ", byte_count); | |
cb833cf6 | 3178 | cls_rule_format(&rule->cr, results); |
a5df0e72 | 3179 | ds_put_char(results, ','); |
aa30ae4e | 3180 | ofpacts_format(rule->ofpacts, rule->ofpacts_len, results); |
4f2cad2c JP |
3181 | ds_put_cstr(results, "\n"); |
3182 | } | |
3183 | ||
d295e8e9 | 3184 | /* Adds a pretty-printed description of all flows to 'results', including |
ee8b231c | 3185 | * hidden flows (e.g., set up by in-band control). */ |
4f2cad2c JP |
3186 | void |
3187 | ofproto_get_all_flows(struct ofproto *p, struct ds *results) | |
3188 | { | |
d0918789 | 3189 | struct oftable *table; |
6c1491fb | 3190 | |
d0918789 | 3191 | OFPROTO_FOR_EACH_TABLE (table, p) { |
6c1491fb BP |
3192 | struct cls_cursor cursor; |
3193 | struct rule *rule; | |
064af421 | 3194 | |
0b4f2078 | 3195 | ovs_rwlock_rdlock(&table->cls.rwlock); |
d0918789 | 3196 | cls_cursor_init(&cursor, &table->cls, NULL); |
6c1491fb BP |
3197 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { |
3198 | flow_stats_ds(rule, results); | |
3199 | } | |
0b4f2078 | 3200 | ovs_rwlock_unlock(&table->cls.rwlock); |
064af421 | 3201 | } |
064af421 BP |
3202 | } |
3203 | ||
b5827b24 BP |
3204 | /* Obtains the NetFlow engine type and engine ID for 'ofproto' into |
3205 | * '*engine_type' and '*engine_id', respectively. */ | |
3206 | void | |
3207 | ofproto_get_netflow_ids(const struct ofproto *ofproto, | |
3208 | uint8_t *engine_type, uint8_t *engine_id) | |
3209 | { | |
abe529af | 3210 | ofproto->ofproto_class->get_netflow_ids(ofproto, engine_type, engine_id); |
b5827b24 BP |
3211 | } |
3212 | ||
9a9e3786 BP |
3213 | /* Checks the status of CFM configured on 'ofp_port' within 'ofproto'. Returns |
3214 | * true if the port's CFM status was successfully stored into '*status'. | |
3215 | * Returns false if the port did not have CFM configured, in which case | |
3216 | * '*status' is indeterminate. | |
3217 | * | |
13b1b2ae | 3218 | * The caller must provide and owns '*status', and must free 'status->rmps'. */ |
9a9e3786 | 3219 | bool |
4e022ec0 | 3220 | ofproto_port_get_cfm_status(const struct ofproto *ofproto, ofp_port_t ofp_port, |
9a9e3786 | 3221 | struct ofproto_cfm_status *status) |
3967a833 MM |
3222 | { |
3223 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
9a9e3786 BP |
3224 | return (ofport |
3225 | && ofproto->ofproto_class->get_cfm_status | |
3226 | && ofproto->ofproto_class->get_cfm_status(ofport, status)); | |
3967a833 MM |
3227 | } |
3228 | ||
90bf1e07 | 3229 | static enum ofperr |
76c93b22 | 3230 | handle_aggregate_stats_request(struct ofconn *ofconn, |
982697a4 | 3231 | const struct ofp_header *oh) |
27d34fce | 3232 | { |
76c93b22 | 3233 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
81d1ea94 | 3234 | struct ofputil_flow_stats_request request; |
76c93b22 | 3235 | struct ofputil_aggregate_stats stats; |
5e9d0469 | 3236 | bool unknown_packets, unknown_bytes; |
76c93b22 | 3237 | struct ofpbuf *reply; |
9ed18e46 BP |
3238 | struct list rules; |
3239 | struct rule *rule; | |
90bf1e07 | 3240 | enum ofperr error; |
27d34fce | 3241 | |
982697a4 | 3242 | error = ofputil_decode_flow_stats_request(&request, oh); |
76c93b22 BP |
3243 | if (error) { |
3244 | return error; | |
3245 | } | |
5ecc9d81 | 3246 | |
9ed18e46 | 3247 | error = collect_rules_loose(ofproto, request.table_id, &request.match, |
e729e793 | 3248 | request.cookie, request.cookie_mask, |
7395c052 | 3249 | request.out_port, request.out_group, &rules); |
9ed18e46 BP |
3250 | if (error) { |
3251 | return error; | |
3252 | } | |
3c4486a5 | 3253 | |
9ed18e46 | 3254 | memset(&stats, 0, sizeof stats); |
5e9d0469 | 3255 | unknown_packets = unknown_bytes = false; |
9ed18e46 BP |
3256 | LIST_FOR_EACH (rule, ofproto_node, &rules) { |
3257 | uint64_t packet_count; | |
3258 | uint64_t byte_count; | |
5ecc9d81 | 3259 | |
9ed18e46 BP |
3260 | ofproto->ofproto_class->rule_get_stats(rule, &packet_count, |
3261 | &byte_count); | |
5ecc9d81 | 3262 | |
5e9d0469 BP |
3263 | if (packet_count == UINT64_MAX) { |
3264 | unknown_packets = true; | |
3265 | } else { | |
3266 | stats.packet_count += packet_count; | |
3267 | } | |
3268 | ||
3269 | if (byte_count == UINT64_MAX) { | |
3270 | unknown_bytes = true; | |
3271 | } else { | |
3272 | stats.byte_count += byte_count; | |
3273 | } | |
3274 | ||
9ed18e46 | 3275 | stats.flow_count++; |
3c4486a5 | 3276 | } |
5e9d0469 BP |
3277 | if (unknown_packets) { |
3278 | stats.packet_count = UINT64_MAX; | |
3279 | } | |
3280 | if (unknown_bytes) { | |
3281 | stats.byte_count = UINT64_MAX; | |
3282 | } | |
27d34fce | 3283 | |
982697a4 | 3284 | reply = ofputil_encode_aggregate_stats_reply(&stats, oh); |
76c93b22 | 3285 | ofconn_send_reply(ofconn, reply); |
09246b99 BP |
3286 | |
3287 | return 0; | |
3288 | } | |
3289 | ||
c1c9c9c4 | 3290 | struct queue_stats_cbdata { |
ca0f572c | 3291 | struct ofport *ofport; |
63f2140a | 3292 | struct list replies; |
6dc34a0d | 3293 | long long int now; |
c1c9c9c4 BP |
3294 | }; |
3295 | ||
3296 | static void | |
db9220c3 | 3297 | put_queue_stats(struct queue_stats_cbdata *cbdata, uint32_t queue_id, |
c1c9c9c4 BP |
3298 | const struct netdev_queue_stats *stats) |
3299 | { | |
6dc34a0d | 3300 | struct ofputil_queue_stats oqs; |
c1c9c9c4 | 3301 | |
6dc34a0d BP |
3302 | oqs.port_no = cbdata->ofport->pp.port_no; |
3303 | oqs.queue_id = queue_id; | |
3304 | oqs.tx_bytes = stats->tx_bytes; | |
3305 | oqs.tx_packets = stats->tx_packets; | |
3306 | oqs.tx_errors = stats->tx_errors; | |
3307 | if (stats->created != LLONG_MIN) { | |
3308 | calc_duration(stats->created, cbdata->now, | |
3309 | &oqs.duration_sec, &oqs.duration_nsec); | |
3310 | } else { | |
3311 | oqs.duration_sec = oqs.duration_nsec = UINT32_MAX; | |
3312 | } | |
64626975 | 3313 | ofputil_append_queue_stat(&cbdata->replies, &oqs); |
c1c9c9c4 BP |
3314 | } |
3315 | ||
3316 | static void | |
db9220c3 | 3317 | handle_queue_stats_dump_cb(uint32_t queue_id, |
c1c9c9c4 BP |
3318 | struct netdev_queue_stats *stats, |
3319 | void *cbdata_) | |
3320 | { | |
3321 | struct queue_stats_cbdata *cbdata = cbdata_; | |
3322 | ||
3323 | put_queue_stats(cbdata, queue_id, stats); | |
3324 | } | |
3325 | ||
0414d158 | 3326 | static enum ofperr |
ca0f572c | 3327 | handle_queue_stats_for_port(struct ofport *port, uint32_t queue_id, |
c1c9c9c4 BP |
3328 | struct queue_stats_cbdata *cbdata) |
3329 | { | |
ca0f572c | 3330 | cbdata->ofport = port; |
c1c9c9c4 BP |
3331 | if (queue_id == OFPQ_ALL) { |
3332 | netdev_dump_queue_stats(port->netdev, | |
3333 | handle_queue_stats_dump_cb, cbdata); | |
3334 | } else { | |
3335 | struct netdev_queue_stats stats; | |
3336 | ||
1ac788f6 BP |
3337 | if (!netdev_get_queue_stats(port->netdev, queue_id, &stats)) { |
3338 | put_queue_stats(cbdata, queue_id, &stats); | |
0414d158 BP |
3339 | } else { |
3340 | return OFPERR_OFPQOFC_BAD_QUEUE; | |
1ac788f6 | 3341 | } |
c1c9c9c4 | 3342 | } |
0414d158 | 3343 | return 0; |
c1c9c9c4 BP |
3344 | } |
3345 | ||
90bf1e07 | 3346 | static enum ofperr |
63f2140a | 3347 | handle_queue_stats_request(struct ofconn *ofconn, |
982697a4 | 3348 | const struct ofp_header *rq) |
c1c9c9c4 | 3349 | { |
64ff1d96 | 3350 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
c1c9c9c4 | 3351 | struct queue_stats_cbdata cbdata; |
0414d158 | 3352 | struct ofport *port; |
0414d158 | 3353 | enum ofperr error; |
64626975 | 3354 | struct ofputil_queue_stats_request oqsr; |
c1c9c9c4 | 3355 | |
c1c9c9c4 BP |
3356 | COVERAGE_INC(ofproto_queue_req); |
3357 | ||
982697a4 | 3358 | ofpmp_init(&cbdata.replies, rq); |
6dc34a0d | 3359 | cbdata.now = time_msec(); |
c1c9c9c4 | 3360 | |
64626975 SH |
3361 | error = ofputil_decode_queue_stats_request(rq, &oqsr); |
3362 | if (error) { | |
3363 | return error; | |
3364 | } | |
3365 | ||
7f05e7ab | 3366 | if (oqsr.port_no == OFPP_ANY) { |
0414d158 | 3367 | error = OFPERR_OFPQOFC_BAD_QUEUE; |
4e8e4213 | 3368 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
64626975 | 3369 | if (!handle_queue_stats_for_port(port, oqsr.queue_id, &cbdata)) { |
0414d158 BP |
3370 | error = 0; |
3371 | } | |
c1c9c9c4 | 3372 | } |
0414d158 | 3373 | } else { |
64626975 | 3374 | port = ofproto_get_port(ofproto, oqsr.port_no); |
0414d158 | 3375 | error = (port |
64626975 | 3376 | ? handle_queue_stats_for_port(port, oqsr.queue_id, &cbdata) |
0414d158 BP |
3377 | : OFPERR_OFPQOFC_BAD_PORT); |
3378 | } | |
3379 | if (!error) { | |
3380 | ofconn_send_replies(ofconn, &cbdata.replies); | |
c1c9c9c4 | 3381 | } else { |
63f2140a | 3382 | ofpbuf_list_delete(&cbdata.replies); |
c1c9c9c4 | 3383 | } |
c1c9c9c4 | 3384 | |
0414d158 | 3385 | return error; |
c1c9c9c4 | 3386 | } |
7ee20df1 BP |
3387 | |
3388 | static bool | |
3389 | is_flow_deletion_pending(const struct ofproto *ofproto, | |
3390 | const struct cls_rule *cls_rule, | |
3391 | uint8_t table_id) | |
3392 | { | |
3393 | if (!hmap_is_empty(&ofproto->deletions)) { | |
3394 | struct ofoperation *op; | |
3395 | ||
3396 | HMAP_FOR_EACH_WITH_HASH (op, hmap_node, | |
3397 | cls_rule_hash(cls_rule, table_id), | |
3398 | &ofproto->deletions) { | |
3399 | if (cls_rule_equal(cls_rule, &op->rule->cr)) { | |
3400 | return true; | |
3401 | } | |
3402 | } | |
3403 | } | |
3404 | ||
3405 | return false; | |
3406 | } | |
3407 | ||
8037acb4 BP |
3408 | static enum ofperr |
3409 | evict_rule_from_table(struct ofproto *ofproto, struct oftable *table) | |
3410 | { | |
3411 | struct rule *rule; | |
3412 | size_t n_rules; | |
3413 | ||
3414 | ovs_rwlock_rdlock(&table->cls.rwlock); | |
3415 | n_rules = classifier_count(&table->cls); | |
3416 | ovs_rwlock_unlock(&table->cls.rwlock); | |
3417 | ||
3418 | if (n_rules < table->max_flows) { | |
3419 | return 0; | |
3420 | } else if (!choose_rule_to_evict(table, &rule)) { | |
3421 | return OFPERR_OFPFMFC_TABLE_FULL; | |
3422 | } else if (rule->pending) { | |
884e1dc4 | 3423 | ovs_rwlock_unlock(&rule->rwlock); |
8037acb4 BP |
3424 | return OFPROTO_POSTPONE; |
3425 | } else { | |
3426 | struct ofopgroup *group; | |
3427 | ||
3428 | group = ofopgroup_create_unattached(ofproto); | |
3429 | delete_flow__(rule, group, OFPRR_EVICTION); | |
3430 | ofopgroup_submit(group); | |
3431 | ||
3432 | return 0; | |
3433 | } | |
3434 | } | |
3435 | ||
79eee1eb BP |
3436 | /* Implements OFPFC_ADD and the cases for OFPFC_MODIFY and OFPFC_MODIFY_STRICT |
3437 | * in which no matching flow already exists in the flow table. | |
3438 | * | |
3439 | * Adds the flow specified by 'ofm', which is followed by 'n_actions' | |
75a75043 | 3440 | * ofp_actions, to the ofproto's flow table. Returns 0 on success, an OpenFlow |
90bf1e07 BP |
3441 | * error code on failure, or OFPROTO_POSTPONE if the operation cannot be |
3442 | * initiated now but may be retried later. | |
79eee1eb | 3443 | * |
f25d0cf3 BP |
3444 | * Upon successful return, takes ownership of 'fm->ofpacts'. On failure, |
3445 | * ownership remains with the caller. | |
3446 | * | |
79eee1eb BP |
3447 | * 'ofconn' is used to retrieve the packet buffer specified in ofm->buffer_id, |
3448 | * if any. */ | |
90bf1e07 | 3449 | static enum ofperr |
a9a2da38 | 3450 | add_flow(struct ofproto *ofproto, struct ofconn *ofconn, |
e3b56933 | 3451 | struct ofputil_flow_mod *fm, const struct ofp_header *request) |
064af421 | 3452 | { |
d0918789 | 3453 | struct oftable *table; |
7ee20df1 | 3454 | struct ofopgroup *group; |
8037acb4 | 3455 | struct cls_rule cr; |
064af421 | 3456 | struct rule *rule; |
5a361239 | 3457 | uint8_t table_id; |
064af421 BP |
3458 | int error; |
3459 | ||
48266274 BP |
3460 | error = check_table_id(ofproto, fm->table_id); |
3461 | if (error) { | |
3462 | return error; | |
3463 | } | |
3464 | ||
7ee20df1 BP |
3465 | /* Pick table. */ |
3466 | if (fm->table_id == 0xff) { | |
13521ff5 | 3467 | if (ofproto->ofproto_class->rule_choose_table) { |
81a76618 BP |
3468 | error = ofproto->ofproto_class->rule_choose_table(ofproto, |
3469 | &fm->match, | |
7ee20df1 BP |
3470 | &table_id); |
3471 | if (error) { | |
3472 | return error; | |
3473 | } | |
cb22974d | 3474 | ovs_assert(table_id < ofproto->n_tables); |
7ee20df1 | 3475 | } else { |
5a361239 | 3476 | table_id = 0; |
7ee20df1 BP |
3477 | } |
3478 | } else if (fm->table_id < ofproto->n_tables) { | |
5a361239 | 3479 | table_id = fm->table_id; |
7ee20df1 | 3480 | } else { |
c22c56bd | 3481 | return OFPERR_OFPBRC_BAD_TABLE_ID; |
064af421 BP |
3482 | } |
3483 | ||
5a361239 JR |
3484 | table = &ofproto->tables[table_id]; |
3485 | ||
5c67e4af BP |
3486 | if (table->flags & OFTABLE_READONLY) { |
3487 | return OFPERR_OFPBRC_EPERM; | |
3488 | } | |
3489 | ||
8037acb4 BP |
3490 | cls_rule_init(&cr, &fm->match, fm->priority); |
3491 | ||
b277c7cc BP |
3492 | /* Transform "add" into "modify" if there's an existing identical flow. */ |
3493 | ovs_rwlock_rdlock(&table->cls.rwlock); | |
8037acb4 | 3494 | rule = rule_from_cls_rule(classifier_find_rule_exactly(&table->cls, &cr)); |
b277c7cc BP |
3495 | ovs_rwlock_unlock(&table->cls.rwlock); |
3496 | if (rule) { | |
8037acb4 | 3497 | cls_rule_destroy(&cr); |
b277c7cc BP |
3498 | if (!rule_is_modifiable(rule)) { |
3499 | return OFPERR_OFPBRC_EPERM; | |
3500 | } else if (rule->pending) { | |
3501 | return OFPROTO_POSTPONE; | |
3502 | } else { | |
3503 | struct list rules; | |
3504 | ||
3505 | list_init(&rules); | |
3506 | list_push_back(&rules, &rule->ofproto_node); | |
3507 | fm->modify_cookie = true; | |
3508 | return modify_flows__(ofproto, ofconn, fm, request, &rules); | |
3509 | } | |
3510 | } | |
3511 | ||
e3b56933 JR |
3512 | /* Verify actions. */ |
3513 | error = ofproto_check_ofpacts(ofproto, fm->ofpacts, fm->ofpacts_len, | |
3514 | &fm->match.flow, table_id); | |
3515 | if (error) { | |
3ef7ad56 | 3516 | cls_rule_destroy(&cr); |
e3b56933 JR |
3517 | return error; |
3518 | } | |
3519 | ||
7ee20df1 | 3520 | /* Serialize against pending deletion. */ |
8037acb4 BP |
3521 | if (is_flow_deletion_pending(ofproto, &cr, table_id)) { |
3522 | cls_rule_destroy(&cr); | |
7ee20df1 | 3523 | return OFPROTO_POSTPONE; |
afe75089 | 3524 | } |
064af421 | 3525 | |
81a76618 | 3526 | /* Check for overlap, if requested. */ |
0fb88c18 | 3527 | if (fm->flags & OFPUTIL_FF_CHECK_OVERLAP) { |
c09f755d BP |
3528 | bool overlaps; |
3529 | ||
3530 | ovs_rwlock_rdlock(&table->cls.rwlock); | |
8037acb4 | 3531 | overlaps = classifier_rule_overlaps(&table->cls, &cr); |
c09f755d BP |
3532 | ovs_rwlock_unlock(&table->cls.rwlock); |
3533 | ||
3534 | if (overlaps) { | |
8037acb4 | 3535 | cls_rule_destroy(&cr); |
c09f755d BP |
3536 | return OFPERR_OFPFMFC_OVERLAP; |
3537 | } | |
7ee20df1 | 3538 | } |
81a76618 | 3539 | |
8037acb4 BP |
3540 | /* If necessary, evict an existing rule to clear out space. */ |
3541 | error = evict_rule_from_table(ofproto, table); | |
3542 | if (error) { | |
3543 | cls_rule_destroy(&cr); | |
3544 | return error; | |
3545 | } | |
2e1ae200 | 3546 | |
8037acb4 BP |
3547 | /* Allocate new rule. */ |
3548 | rule = ofproto->ofproto_class->rule_alloc(); | |
3549 | if (!rule) { | |
3550 | cls_rule_destroy(&cr); | |
3551 | VLOG_WARN_RL(&rl, "%s: failed to create rule (%s)", | |
3552 | ofproto->name, ovs_strerror(error)); | |
3553 | return ENOMEM; | |
3554 | } | |
3555 | ||
3556 | /* Initialize base state. */ | |
7ee20df1 | 3557 | rule->ofproto = ofproto; |
8037acb4 | 3558 | cls_rule_move(&rule->cr, &cr); |
7ee20df1 | 3559 | rule->pending = NULL; |
623e1caf | 3560 | rule->flow_cookie = fm->new_cookie; |
1745cd08 | 3561 | rule->created = rule->modified = rule->used = time_msec(); |
a3779dbc | 3562 | |
834d6caf | 3563 | ovs_mutex_init(&rule->timeout_mutex); |
a3779dbc | 3564 | ovs_mutex_lock(&rule->timeout_mutex); |
7ee20df1 BP |
3565 | rule->idle_timeout = fm->idle_timeout; |
3566 | rule->hard_timeout = fm->hard_timeout; | |
a3779dbc EJ |
3567 | ovs_mutex_unlock(&rule->timeout_mutex); |
3568 | ||
7ee20df1 | 3569 | rule->table_id = table - ofproto->tables; |
0fb88c18 | 3570 | rule->send_flow_removed = (fm->flags & OFPUTIL_FF_SEND_FLOW_REM) != 0; |
f25d0cf3 BP |
3571 | rule->ofpacts = xmemdup(fm->ofpacts, fm->ofpacts_len); |
3572 | rule->ofpacts_len = fm->ofpacts_len; | |
9cae45dc JR |
3573 | rule->meter_id = find_meter(rule->ofpacts, rule->ofpacts_len); |
3574 | list_init(&rule->meter_list_node); | |
254750ce | 3575 | rule->eviction_group = NULL; |
e503cc19 | 3576 | list_init(&rule->expirable); |
2b07c8b1 BP |
3577 | rule->monitor_flags = 0; |
3578 | rule->add_seqno = 0; | |
3579 | rule->modify_seqno = 0; | |
884e1dc4 | 3580 | ovs_rwlock_init(&rule->rwlock); |
7ee20df1 | 3581 | |
8037acb4 | 3582 | /* Construct rule, initializing derived state. */ |
b277c7cc BP |
3583 | error = ofproto->ofproto_class->rule_construct(rule); |
3584 | if (error) { | |
8037acb4 BP |
3585 | ofproto_rule_destroy__(rule); |
3586 | return error; | |
064af421 | 3587 | } |
8037acb4 BP |
3588 | |
3589 | /* Insert rule. */ | |
3590 | oftable_insert_rule(rule); | |
3591 | ||
3592 | group = ofopgroup_create(ofproto, ofconn, request, fm->buffer_id); | |
3593 | ofoperation_create(group, rule, OFOPERATION_ADD, 0); | |
3594 | ofproto->ofproto_class->rule_insert(rule); | |
b277c7cc | 3595 | ofopgroup_submit(group); |
79eee1eb | 3596 | |
7ee20df1 | 3597 | return error; |
064af421 | 3598 | } |
79eee1eb BP |
3599 | \f |
3600 | /* OFPFC_MODIFY and OFPFC_MODIFY_STRICT. */ | |
064af421 | 3601 | |
9ed18e46 BP |
3602 | /* Modifies the rules listed in 'rules', changing their actions to match those |
3603 | * in 'fm'. | |
79eee1eb | 3604 | * |
9ed18e46 BP |
3605 | * 'ofconn' is used to retrieve the packet buffer specified in fm->buffer_id, |
3606 | * if any. | |
3607 | * | |
3608 | * Returns 0 on success, otherwise an OpenFlow error code. */ | |
90bf1e07 | 3609 | static enum ofperr |
7024dffe | 3610 | modify_flows__(struct ofproto *ofproto, struct ofconn *ofconn, |
e3b56933 | 3611 | struct ofputil_flow_mod *fm, const struct ofp_header *request, |
9cae45dc | 3612 | struct list *rules) |
79eee1eb | 3613 | { |
b277c7cc | 3614 | enum ofoperation_type type; |
7ee20df1 | 3615 | struct ofopgroup *group; |
9ed18e46 | 3616 | struct rule *rule; |
5c67e4af | 3617 | enum ofperr error; |
79eee1eb | 3618 | |
b277c7cc | 3619 | type = fm->command == OFPFC_ADD ? OFOPERATION_REPLACE : OFOPERATION_MODIFY; |
7024dffe | 3620 | group = ofopgroup_create(ofproto, ofconn, request, fm->buffer_id); |
5c67e4af | 3621 | error = OFPERR_OFPBRC_EPERM; |
9ed18e46 | 3622 | LIST_FOR_EACH (rule, ofproto_node, rules) { |
08043761 BP |
3623 | struct ofoperation *op; |
3624 | bool actions_changed; | |
b277c7cc | 3625 | bool reset_counters; |
08043761 | 3626 | |
0fb88c18 | 3627 | /* FIXME: Implement OFPFUTIL_FF_RESET_COUNTS */ |
2e1ae200 | 3628 | |
5c67e4af BP |
3629 | if (rule_is_modifiable(rule)) { |
3630 | /* At least one rule is modifiable, don't report EPERM error. */ | |
3631 | error = 0; | |
3632 | } else { | |
3633 | continue; | |
3634 | } | |
3635 | ||
e3b56933 JR |
3636 | /* Verify actions. */ |
3637 | error = ofpacts_check(fm->ofpacts, fm->ofpacts_len, &fm->match.flow, | |
430dbb14 | 3638 | u16_to_ofp(ofproto->max_ports), rule->table_id); |
e3b56933 JR |
3639 | if (error) { |
3640 | return error; | |
3641 | } | |
3642 | ||
08043761 BP |
3643 | actions_changed = !ofpacts_equal(fm->ofpacts, fm->ofpacts_len, |
3644 | rule->ofpacts, rule->ofpacts_len); | |
a7d94793 | 3645 | |
b277c7cc | 3646 | op = ofoperation_create(group, rule, type, 0); |
98eaac36 | 3647 | |
23342857 | 3648 | if (fm->modify_cookie && fm->new_cookie != htonll(UINT64_MAX)) { |
98eaac36 JR |
3649 | ofproto_rule_change_cookie(ofproto, rule, fm->new_cookie); |
3650 | } | |
b277c7cc BP |
3651 | if (type == OFOPERATION_REPLACE) { |
3652 | ovs_mutex_lock(&rule->timeout_mutex); | |
3653 | rule->idle_timeout = fm->idle_timeout; | |
3654 | rule->hard_timeout = fm->hard_timeout; | |
3655 | ovs_mutex_unlock(&rule->timeout_mutex); | |
3656 | ||
3657 | rule->send_flow_removed = (fm->flags | |
3658 | & OFPUTIL_FF_SEND_FLOW_REM) != 0; | |
3659 | ||
3660 | if (fm->idle_timeout || fm->hard_timeout) { | |
3661 | if (!rule->eviction_group) { | |
3662 | eviction_group_add_rule(rule); | |
3663 | } | |
3664 | } else { | |
3665 | eviction_group_remove_rule(rule); | |
3666 | } | |
3667 | } | |
3668 | ||
3669 | reset_counters = (fm->flags & OFPUTIL_FF_RESET_COUNTS) != 0; | |
3670 | if (actions_changed || reset_counters) { | |
a7d94793 BP |
3671 | op->ofpacts = rule->ofpacts; |
3672 | op->ofpacts_len = rule->ofpacts_len; | |
9cae45dc | 3673 | op->meter_id = rule->meter_id; |
884e1dc4 EJ |
3674 | |
3675 | ovs_rwlock_wrlock(&rule->rwlock); | |
f25d0cf3 BP |
3676 | rule->ofpacts = xmemdup(fm->ofpacts, fm->ofpacts_len); |
3677 | rule->ofpacts_len = fm->ofpacts_len; | |
884e1dc4 EJ |
3678 | ovs_rwlock_unlock(&rule->rwlock); |
3679 | ||
9cae45dc | 3680 | rule->meter_id = find_meter(rule->ofpacts, rule->ofpacts_len); |
b277c7cc BP |
3681 | rule->ofproto->ofproto_class->rule_modify_actions(rule, |
3682 | reset_counters); | |
308881af | 3683 | } else { |
08043761 | 3684 | ofoperation_complete(op, 0); |
623e1caf | 3685 | } |
5ecc9d81 | 3686 | } |
7ee20df1 | 3687 | ofopgroup_submit(group); |
79eee1eb | 3688 | |
5c67e4af | 3689 | return error; |
9ed18e46 BP |
3690 | } |
3691 | ||
9387b970 SH |
3692 | static enum ofperr |
3693 | modify_flows_add(struct ofproto *ofproto, struct ofconn *ofconn, | |
e3b56933 | 3694 | struct ofputil_flow_mod *fm, const struct ofp_header *request) |
9387b970 SH |
3695 | { |
3696 | if (fm->cookie_mask != htonll(0) || fm->new_cookie == htonll(UINT64_MAX)) { | |
3697 | return 0; | |
3698 | } | |
3699 | return add_flow(ofproto, ofconn, fm, request); | |
3700 | } | |
3701 | ||
90bf1e07 BP |
3702 | /* Implements OFPFC_MODIFY. Returns 0 on success or an OpenFlow error code on |
3703 | * failure. | |
9ed18e46 BP |
3704 | * |
3705 | * 'ofconn' is used to retrieve the packet buffer specified in fm->buffer_id, | |
3706 | * if any. */ | |
90bf1e07 | 3707 | static enum ofperr |
7024dffe | 3708 | modify_flows_loose(struct ofproto *ofproto, struct ofconn *ofconn, |
e3b56933 | 3709 | struct ofputil_flow_mod *fm, |
7ee20df1 | 3710 | const struct ofp_header *request) |
9ed18e46 | 3711 | { |
9ed18e46 BP |
3712 | struct list rules; |
3713 | int error; | |
3714 | ||
81a76618 | 3715 | error = collect_rules_loose(ofproto, fm->table_id, &fm->match, |
e729e793 | 3716 | fm->cookie, fm->cookie_mask, |
7395c052 | 3717 | OFPP_ANY, OFPG11_ANY, &rules); |
623e1caf JP |
3718 | if (error) { |
3719 | return error; | |
3720 | } else if (list_is_empty(&rules)) { | |
9387b970 | 3721 | return modify_flows_add(ofproto, ofconn, fm, request); |
623e1caf JP |
3722 | } else { |
3723 | return modify_flows__(ofproto, ofconn, fm, request, &rules); | |
3724 | } | |
79eee1eb BP |
3725 | } |
3726 | ||
3727 | /* Implements OFPFC_MODIFY_STRICT. Returns 0 on success or an OpenFlow error | |
90bf1e07 | 3728 | * code on failure. |
79eee1eb | 3729 | * |
9ed18e46 | 3730 | * 'ofconn' is used to retrieve the packet buffer specified in fm->buffer_id, |
79eee1eb | 3731 | * if any. */ |
90bf1e07 | 3732 | static enum ofperr |
7024dffe | 3733 | modify_flow_strict(struct ofproto *ofproto, struct ofconn *ofconn, |
e3b56933 | 3734 | struct ofputil_flow_mod *fm, |
7ee20df1 | 3735 | const struct ofp_header *request) |
79eee1eb | 3736 | { |
9ed18e46 | 3737 | struct list rules; |
6c1491fb BP |
3738 | int error; |
3739 | ||
81a76618 BP |
3740 | error = collect_rules_strict(ofproto, fm->table_id, &fm->match, |
3741 | fm->priority, fm->cookie, fm->cookie_mask, | |
7395c052 | 3742 | OFPP_ANY, OFPG11_ANY, &rules); |
623e1caf JP |
3743 | if (error) { |
3744 | return error; | |
3745 | } else if (list_is_empty(&rules)) { | |
9387b970 | 3746 | return modify_flows_add(ofproto, ofconn, fm, request); |
623e1caf JP |
3747 | } else { |
3748 | return list_is_singleton(&rules) ? modify_flows__(ofproto, ofconn, | |
3749 | fm, request, &rules) | |
3750 | : 0; | |
3751 | } | |
79eee1eb | 3752 | } |
9ed18e46 BP |
3753 | \f |
3754 | /* OFPFC_DELETE implementation. */ | |
79eee1eb | 3755 | |
254750ce | 3756 | static void |
ca311b2f JR |
3757 | delete_flow__(struct rule *rule, struct ofopgroup *group, |
3758 | enum ofp_flow_removed_reason reason) | |
254750ce BP |
3759 | { |
3760 | struct ofproto *ofproto = rule->ofproto; | |
3761 | ||
ca311b2f | 3762 | ofproto_rule_send_removed(rule, reason); |
254750ce | 3763 | |
ca311b2f | 3764 | ofoperation_create(group, rule, OFOPERATION_DELETE, reason); |
254750ce | 3765 | oftable_remove_rule(rule); |
8037acb4 | 3766 | ofproto->ofproto_class->rule_delete(rule); |
254750ce BP |
3767 | } |
3768 | ||
9ed18e46 BP |
3769 | /* Deletes the rules listed in 'rules'. |
3770 | * | |
3771 | * Returns 0 on success, otherwise an OpenFlow error code. */ | |
90bf1e07 | 3772 | static enum ofperr |
7024dffe | 3773 | delete_flows__(struct ofproto *ofproto, struct ofconn *ofconn, |
ca311b2f JR |
3774 | const struct ofp_header *request, struct list *rules, |
3775 | enum ofp_flow_removed_reason reason) | |
064af421 | 3776 | { |
9ed18e46 | 3777 | struct rule *rule, *next; |
7ee20df1 | 3778 | struct ofopgroup *group; |
79eee1eb | 3779 | |
7024dffe | 3780 | group = ofopgroup_create(ofproto, ofconn, request, UINT32_MAX); |
9ed18e46 | 3781 | LIST_FOR_EACH_SAFE (rule, next, ofproto_node, rules) { |
884e1dc4 | 3782 | ovs_rwlock_wrlock(&rule->rwlock); |
ca311b2f | 3783 | delete_flow__(rule, group, reason); |
79eee1eb | 3784 | } |
7ee20df1 | 3785 | ofopgroup_submit(group); |
79eee1eb | 3786 | |
9ed18e46 | 3787 | return 0; |
79eee1eb | 3788 | } |
79eee1eb BP |
3789 | |
3790 | /* Implements OFPFC_DELETE. */ | |
90bf1e07 | 3791 | static enum ofperr |
7024dffe BP |
3792 | delete_flows_loose(struct ofproto *ofproto, struct ofconn *ofconn, |
3793 | const struct ofputil_flow_mod *fm, | |
7ee20df1 | 3794 | const struct ofp_header *request) |
79eee1eb | 3795 | { |
9ed18e46 | 3796 | struct list rules; |
90bf1e07 | 3797 | enum ofperr error; |
064af421 | 3798 | |
81a76618 | 3799 | error = collect_rules_loose(ofproto, fm->table_id, &fm->match, |
e729e793 | 3800 | fm->cookie, fm->cookie_mask, |
7395c052 | 3801 | fm->out_port, fm->out_group, &rules); |
9ed18e46 | 3802 | return (error ? error |
7024dffe | 3803 | : !list_is_empty(&rules) ? delete_flows__(ofproto, ofconn, request, |
ca311b2f | 3804 | &rules, OFPRR_DELETE) |
9ed18e46 | 3805 | : 0); |
064af421 BP |
3806 | } |
3807 | ||
79eee1eb | 3808 | /* Implements OFPFC_DELETE_STRICT. */ |
90bf1e07 | 3809 | static enum ofperr |
7024dffe | 3810 | delete_flow_strict(struct ofproto *ofproto, struct ofconn *ofconn, |
1b9d6420 | 3811 | const struct ofputil_flow_mod *fm, |
7ee20df1 | 3812 | const struct ofp_header *request) |
79eee1eb | 3813 | { |
9ed18e46 | 3814 | struct list rules; |
90bf1e07 | 3815 | enum ofperr error; |
79eee1eb | 3816 | |
81a76618 BP |
3817 | error = collect_rules_strict(ofproto, fm->table_id, &fm->match, |
3818 | fm->priority, fm->cookie, fm->cookie_mask, | |
7395c052 | 3819 | fm->out_port, fm->out_group, &rules); |
9ed18e46 | 3820 | return (error ? error |
7024dffe | 3821 | : list_is_singleton(&rules) ? delete_flows__(ofproto, ofconn, |
ca311b2f JR |
3822 | request, &rules, |
3823 | OFPRR_DELETE) | |
9ed18e46 | 3824 | : 0); |
abe529af BP |
3825 | } |
3826 | ||
3827 | static void | |
3828 | ofproto_rule_send_removed(struct rule *rule, uint8_t reason) | |
3829 | { | |
3830 | struct ofputil_flow_removed fr; | |
3831 | ||
2b07c8b1 | 3832 | if (ofproto_rule_is_hidden(rule) || !rule->send_flow_removed) { |
abe529af BP |
3833 | return; |
3834 | } | |
3835 | ||
5cb7a798 | 3836 | minimatch_expand(&rule->cr.match, &fr.match); |
81a76618 | 3837 | fr.priority = rule->cr.priority; |
abe529af BP |
3838 | fr.cookie = rule->flow_cookie; |
3839 | fr.reason = reason; | |
95216219 | 3840 | fr.table_id = rule->table_id; |
65e0be10 BP |
3841 | calc_duration(rule->created, time_msec(), |
3842 | &fr.duration_sec, &fr.duration_nsec); | |
a3779dbc | 3843 | ovs_mutex_lock(&rule->timeout_mutex); |
abe529af | 3844 | fr.idle_timeout = rule->idle_timeout; |
fa2bad0f | 3845 | fr.hard_timeout = rule->hard_timeout; |
a3779dbc | 3846 | ovs_mutex_unlock(&rule->timeout_mutex); |
abe529af BP |
3847 | rule->ofproto->ofproto_class->rule_get_stats(rule, &fr.packet_count, |
3848 | &fr.byte_count); | |
3849 | ||
3850 | connmgr_send_flow_removed(rule->ofproto->connmgr, &fr); | |
3851 | } | |
3852 | ||
3853 | /* Sends an OpenFlow "flow removed" message with the given 'reason' (either | |
3854 | * OFPRR_HARD_TIMEOUT or OFPRR_IDLE_TIMEOUT), and then removes 'rule' from its | |
3855 | * ofproto. | |
3856 | * | |
e2a3d183 BP |
3857 | * 'rule' must not have a pending operation (that is, 'rule->pending' must be |
3858 | * NULL). | |
3859 | * | |
abe529af BP |
3860 | * ofproto implementation ->run() functions should use this function to expire |
3861 | * OpenFlow flows. */ | |
3862 | void | |
3863 | ofproto_rule_expire(struct rule *rule, uint8_t reason) | |
3864 | { | |
7ee20df1 | 3865 | struct ofproto *ofproto = rule->ofproto; |
8037acb4 | 3866 | struct classifier *cls = &ofproto->tables[rule->table_id].cls; |
7ee20df1 | 3867 | |
7395c052 NZ |
3868 | ovs_assert(reason == OFPRR_HARD_TIMEOUT || reason == OFPRR_IDLE_TIMEOUT |
3869 | || reason == OFPRR_DELETE || reason == OFPRR_GROUP_DELETE); | |
abe529af | 3870 | ofproto_rule_send_removed(rule, reason); |
7ee20df1 | 3871 | |
8037acb4 BP |
3872 | ovs_rwlock_wrlock(&cls->rwlock); |
3873 | ofproto_delete_rule(ofproto, cls, rule); | |
3874 | ovs_rwlock_unlock(&cls->rwlock); | |
79eee1eb | 3875 | } |
994c9973 BP |
3876 | |
3877 | /* Reduces '*timeout' to no more than 'max'. A value of zero in either case | |
3878 | * means "infinite". */ | |
3879 | static void | |
3880 | reduce_timeout(uint16_t max, uint16_t *timeout) | |
3881 | { | |
3882 | if (max && (!*timeout || *timeout > max)) { | |
3883 | *timeout = max; | |
3884 | } | |
3885 | } | |
3886 | ||
3887 | /* If 'idle_timeout' is nonzero, and 'rule' has no idle timeout or an idle | |
3888 | * timeout greater than 'idle_timeout', lowers 'rule''s idle timeout to | |
3889 | * 'idle_timeout' seconds. Similarly for 'hard_timeout'. | |
3890 | * | |
3891 | * Suitable for implementing OFPACT_FIN_TIMEOUT. */ | |
3892 | void | |
3893 | ofproto_rule_reduce_timeouts(struct rule *rule, | |
3894 | uint16_t idle_timeout, uint16_t hard_timeout) | |
3895 | OVS_EXCLUDED(rule->ofproto->expirable_mutex, rule->timeout_mutex) | |
3896 | { | |
3897 | if (!idle_timeout && !hard_timeout) { | |
3898 | return; | |
3899 | } | |
3900 | ||
3901 | ovs_mutex_lock(&rule->ofproto->expirable_mutex); | |
3902 | if (list_is_empty(&rule->expirable)) { | |
3903 | list_insert(&rule->ofproto->expirable, &rule->expirable); | |
3904 | } | |
3905 | ovs_mutex_unlock(&rule->ofproto->expirable_mutex); | |
3906 | ||
3907 | ovs_mutex_lock(&rule->timeout_mutex); | |
3908 | reduce_timeout(idle_timeout, &rule->idle_timeout); | |
3909 | reduce_timeout(hard_timeout, &rule->hard_timeout); | |
3910 | ovs_mutex_unlock(&rule->timeout_mutex); | |
994c9973 | 3911 | } |
79eee1eb | 3912 | \f |
90bf1e07 | 3913 | static enum ofperr |
2e4f5fcf | 3914 | handle_flow_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3915 | { |
a5b8d268 | 3916 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
a9a2da38 | 3917 | struct ofputil_flow_mod fm; |
f25d0cf3 BP |
3918 | uint64_t ofpacts_stub[1024 / 8]; |
3919 | struct ofpbuf ofpacts; | |
90bf1e07 | 3920 | enum ofperr error; |
a5b8d268 | 3921 | long long int now; |
064af421 | 3922 | |
76589937 | 3923 | error = reject_slave_controller(ofconn); |
9deba63b | 3924 | if (error) { |
f25d0cf3 | 3925 | goto exit; |
9deba63b | 3926 | } |
3052b0c5 | 3927 | |
f25d0cf3 BP |
3928 | ofpbuf_use_stub(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); |
3929 | error = ofputil_decode_flow_mod(&fm, oh, ofconn_get_protocol(ofconn), | |
3930 | &ofpacts); | |
548de4dd | 3931 | if (!error) { |
f1822532 | 3932 | error = handle_flow_mod__(ofproto, ofconn, &fm, oh); |
49bdc010 | 3933 | } |
a5b8d268 | 3934 | if (error) { |
f25d0cf3 | 3935 | goto exit_free_ofpacts; |
a5b8d268 | 3936 | } |
2e310801 | 3937 | |
a5b8d268 BP |
3938 | /* Record the operation for logging a summary report. */ |
3939 | switch (fm.command) { | |
3940 | case OFPFC_ADD: | |
3941 | ofproto->n_add++; | |
3942 | break; | |
3943 | ||
3944 | case OFPFC_MODIFY: | |
3945 | case OFPFC_MODIFY_STRICT: | |
3946 | ofproto->n_modify++; | |
3947 | break; | |
3948 | ||
3949 | case OFPFC_DELETE: | |
3950 | case OFPFC_DELETE_STRICT: | |
3951 | ofproto->n_delete++; | |
3952 | break; | |
3953 | } | |
3954 | ||
3955 | now = time_msec(); | |
3956 | if (ofproto->next_op_report == LLONG_MAX) { | |
3957 | ofproto->first_op = now; | |
3958 | ofproto->next_op_report = MAX(now + 10 * 1000, | |
3959 | ofproto->op_backoff); | |
3960 | ofproto->op_backoff = ofproto->next_op_report + 60 * 1000; | |
3961 | } | |
3962 | ofproto->last_op = now; | |
3963 | ||
f25d0cf3 BP |
3964 | exit_free_ofpacts: |
3965 | ofpbuf_uninit(&ofpacts); | |
3966 | exit: | |
3967 | return error; | |
75a75043 BP |
3968 | } |
3969 | ||
90bf1e07 | 3970 | static enum ofperr |
75a75043 | 3971 | handle_flow_mod__(struct ofproto *ofproto, struct ofconn *ofconn, |
e3b56933 | 3972 | struct ofputil_flow_mod *fm, const struct ofp_header *oh) |
75a75043 BP |
3973 | { |
3974 | if (ofproto->n_pending >= 50) { | |
cb22974d | 3975 | ovs_assert(!list_is_empty(&ofproto->pending)); |
75a75043 BP |
3976 | return OFPROTO_POSTPONE; |
3977 | } | |
3978 | ||
3979 | switch (fm->command) { | |
3052b0c5 | 3980 | case OFPFC_ADD: |
75a75043 | 3981 | return add_flow(ofproto, ofconn, fm, oh); |
3052b0c5 BP |
3982 | |
3983 | case OFPFC_MODIFY: | |
75a75043 | 3984 | return modify_flows_loose(ofproto, ofconn, fm, oh); |
3052b0c5 BP |
3985 | |
3986 | case OFPFC_MODIFY_STRICT: | |
75a75043 | 3987 | return modify_flow_strict(ofproto, ofconn, fm, oh); |
3052b0c5 BP |
3988 | |
3989 | case OFPFC_DELETE: | |
75a75043 | 3990 | return delete_flows_loose(ofproto, ofconn, fm, oh); |
3052b0c5 BP |
3991 | |
3992 | case OFPFC_DELETE_STRICT: | |
75a75043 | 3993 | return delete_flow_strict(ofproto, ofconn, fm, oh); |
3052b0c5 BP |
3994 | |
3995 | default: | |
75a75043 | 3996 | if (fm->command > 0xff) { |
fbfa2911 BP |
3997 | VLOG_WARN_RL(&rl, "%s: flow_mod has explicit table_id but " |
3998 | "flow_mod_table_id extension is not enabled", | |
3999 | ofproto->name); | |
6c1491fb | 4000 | } |
90bf1e07 | 4001 | return OFPERR_OFPFMFC_BAD_COMMAND; |
3052b0c5 BP |
4002 | } |
4003 | } | |
4004 | ||
90bf1e07 | 4005 | static enum ofperr |
d1e2cf21 | 4006 | handle_role_request(struct ofconn *ofconn, const struct ofp_header *oh) |
9deba63b | 4007 | { |
f4f1ea7e BP |
4008 | struct ofputil_role_request request; |
4009 | struct ofputil_role_request reply; | |
9deba63b | 4010 | struct ofpbuf *buf; |
6ea4776b JR |
4011 | enum ofperr error; |
4012 | ||
f4f1ea7e | 4013 | error = ofputil_decode_role_message(oh, &request); |
6ea4776b JR |
4014 | if (error) { |
4015 | return error; | |
4016 | } | |
9deba63b | 4017 | |
f4f1ea7e BP |
4018 | if (request.role != OFPCR12_ROLE_NOCHANGE) { |
4019 | if (ofconn_get_role(ofconn) != request.role | |
4020 | && ofconn_has_pending_opgroups(ofconn)) { | |
4021 | return OFPROTO_POSTPONE; | |
4022 | } | |
7ee20df1 | 4023 | |
f4f1ea7e BP |
4024 | if (request.have_generation_id |
4025 | && !ofconn_set_master_election_id(ofconn, request.generation_id)) { | |
4026 | return OFPERR_OFPRRFC_STALE; | |
6ea4776b | 4027 | } |
6ea4776b | 4028 | |
f4f1ea7e BP |
4029 | ofconn_set_role(ofconn, request.role); |
4030 | } | |
9deba63b | 4031 | |
f4f1ea7e | 4032 | reply.role = ofconn_get_role(ofconn); |
147cc9d3 BP |
4033 | reply.have_generation_id = ofconn_get_master_election_id( |
4034 | ofconn, &reply.generation_id); | |
f4f1ea7e | 4035 | buf = ofputil_encode_role_reply(oh, &reply); |
b0421aa2 | 4036 | ofconn_send_reply(ofconn, buf); |
9deba63b BP |
4037 | |
4038 | return 0; | |
4039 | } | |
4040 | ||
90bf1e07 | 4041 | static enum ofperr |
6c1491fb BP |
4042 | handle_nxt_flow_mod_table_id(struct ofconn *ofconn, |
4043 | const struct ofp_header *oh) | |
4044 | { | |
982697a4 | 4045 | const struct nx_flow_mod_table_id *msg = ofpmsg_body(oh); |
27527aa0 BP |
4046 | enum ofputil_protocol cur, next; |
4047 | ||
4048 | cur = ofconn_get_protocol(ofconn); | |
4049 | next = ofputil_protocol_set_tid(cur, msg->set != 0); | |
4050 | ofconn_set_protocol(ofconn, next); | |
6c1491fb | 4051 | |
6c1491fb BP |
4052 | return 0; |
4053 | } | |
4054 | ||
90bf1e07 | 4055 | static enum ofperr |
d1e2cf21 | 4056 | handle_nxt_set_flow_format(struct ofconn *ofconn, const struct ofp_header *oh) |
09246b99 | 4057 | { |
982697a4 | 4058 | const struct nx_set_flow_format *msg = ofpmsg_body(oh); |
27527aa0 BP |
4059 | enum ofputil_protocol cur, next; |
4060 | enum ofputil_protocol next_base; | |
09246b99 | 4061 | |
27527aa0 BP |
4062 | next_base = ofputil_nx_flow_format_to_protocol(ntohl(msg->format)); |
4063 | if (!next_base) { | |
90bf1e07 | 4064 | return OFPERR_OFPBRC_EPERM; |
09246b99 | 4065 | } |
7ee20df1 | 4066 | |
27527aa0 BP |
4067 | cur = ofconn_get_protocol(ofconn); |
4068 | next = ofputil_protocol_set_base(cur, next_base); | |
4069 | if (cur != next && ofconn_has_pending_opgroups(ofconn)) { | |
4070 | /* Avoid sending async messages in surprising protocol. */ | |
7ee20df1 BP |
4071 | return OFPROTO_POSTPONE; |
4072 | } | |
4073 | ||
27527aa0 | 4074 | ofconn_set_protocol(ofconn, next); |
7ee20df1 | 4075 | return 0; |
09246b99 BP |
4076 | } |
4077 | ||
90bf1e07 | 4078 | static enum ofperr |
54834960 EJ |
4079 | handle_nxt_set_packet_in_format(struct ofconn *ofconn, |
4080 | const struct ofp_header *oh) | |
4081 | { | |
982697a4 | 4082 | const struct nx_set_packet_in_format *msg = ofpmsg_body(oh); |
54834960 EJ |
4083 | uint32_t format; |
4084 | ||
54834960 | 4085 | format = ntohl(msg->format); |
a15f0eeb | 4086 | if (format != NXPIF_OPENFLOW10 && format != NXPIF_NXM) { |
90bf1e07 | 4087 | return OFPERR_OFPBRC_EPERM; |
54834960 EJ |
4088 | } |
4089 | ||
4090 | if (format != ofconn_get_packet_in_format(ofconn) | |
4091 | && ofconn_has_pending_opgroups(ofconn)) { | |
4092 | /* Avoid sending async message in surprsing packet in format. */ | |
4093 | return OFPROTO_POSTPONE; | |
4094 | } | |
4095 | ||
4096 | ofconn_set_packet_in_format(ofconn, format); | |
4097 | return 0; | |
4098 | } | |
4099 | ||
80d5aefd BP |
4100 | static enum ofperr |
4101 | handle_nxt_set_async_config(struct ofconn *ofconn, const struct ofp_header *oh) | |
4102 | { | |
982697a4 | 4103 | const struct nx_async_config *msg = ofpmsg_body(oh); |
80d5aefd BP |
4104 | uint32_t master[OAM_N_TYPES]; |
4105 | uint32_t slave[OAM_N_TYPES]; | |
4106 | ||
4107 | master[OAM_PACKET_IN] = ntohl(msg->packet_in_mask[0]); | |
4108 | master[OAM_PORT_STATUS] = ntohl(msg->port_status_mask[0]); | |
4109 | master[OAM_FLOW_REMOVED] = ntohl(msg->flow_removed_mask[0]); | |
4110 | ||
4111 | slave[OAM_PACKET_IN] = ntohl(msg->packet_in_mask[1]); | |
4112 | slave[OAM_PORT_STATUS] = ntohl(msg->port_status_mask[1]); | |
4113 | slave[OAM_FLOW_REMOVED] = ntohl(msg->flow_removed_mask[1]); | |
4114 | ||
4115 | ofconn_set_async_config(ofconn, master, slave); | |
4550b647 MM |
4116 | if (ofconn_get_type(ofconn) == OFCONN_SERVICE && |
4117 | !ofconn_get_miss_send_len(ofconn)) { | |
4118 | ofconn_set_miss_send_len(ofconn, OFP_DEFAULT_MISS_SEND_LEN); | |
4119 | } | |
80d5aefd BP |
4120 | |
4121 | return 0; | |
4122 | } | |
4123 | ||
c423b3b3 AC |
4124 | static enum ofperr |
4125 | handle_nxt_get_async_request(struct ofconn *ofconn, const struct ofp_header *oh) | |
4126 | { | |
4127 | struct ofpbuf *buf; | |
4128 | uint32_t master[OAM_N_TYPES]; | |
4129 | uint32_t slave[OAM_N_TYPES]; | |
4130 | struct nx_async_config *msg; | |
4131 | ||
4132 | ofconn_get_async_config(ofconn, master, slave); | |
4133 | buf = ofpraw_alloc_reply(OFPRAW_OFPT13_GET_ASYNC_REPLY, oh, 0); | |
4134 | msg = ofpbuf_put_zeros(buf, sizeof *msg); | |
4135 | ||
4136 | msg->packet_in_mask[0] = htonl(master[OAM_PACKET_IN]); | |
4137 | msg->port_status_mask[0] = htonl(master[OAM_PORT_STATUS]); | |
4138 | msg->flow_removed_mask[0] = htonl(master[OAM_FLOW_REMOVED]); | |
4139 | ||
4140 | msg->packet_in_mask[1] = htonl(slave[OAM_PACKET_IN]); | |
4141 | msg->port_status_mask[1] = htonl(slave[OAM_PORT_STATUS]); | |
4142 | msg->flow_removed_mask[1] = htonl(slave[OAM_FLOW_REMOVED]); | |
4143 | ||
4144 | ofconn_send_reply(ofconn, buf); | |
4145 | ||
4146 | return 0; | |
4147 | } | |
4148 | ||
a7349929 BP |
4149 | static enum ofperr |
4150 | handle_nxt_set_controller_id(struct ofconn *ofconn, | |
4151 | const struct ofp_header *oh) | |
4152 | { | |
982697a4 | 4153 | const struct nx_controller_id *nci = ofpmsg_body(oh); |
a7349929 | 4154 | |
a7349929 BP |
4155 | if (!is_all_zeros(nci->zero, sizeof nci->zero)) { |
4156 | return OFPERR_NXBRC_MUST_BE_ZERO; | |
4157 | } | |
4158 | ||
4159 | ofconn_set_controller_id(ofconn, ntohs(nci->controller_id)); | |
4160 | return 0; | |
4161 | } | |
4162 | ||
90bf1e07 | 4163 | static enum ofperr |
d1e2cf21 | 4164 | handle_barrier_request(struct ofconn *ofconn, const struct ofp_header *oh) |
246e61ea | 4165 | { |
246e61ea JP |
4166 | struct ofpbuf *buf; |
4167 | ||
7ee20df1 BP |
4168 | if (ofconn_has_pending_opgroups(ofconn)) { |
4169 | return OFPROTO_POSTPONE; | |
4170 | } | |
4171 | ||
982697a4 BP |
4172 | buf = ofpraw_alloc_reply((oh->version == OFP10_VERSION |
4173 | ? OFPRAW_OFPT10_BARRIER_REPLY | |
4174 | : OFPRAW_OFPT11_BARRIER_REPLY), oh, 0); | |
b0421aa2 | 4175 | ofconn_send_reply(ofconn, buf); |
246e61ea JP |
4176 | return 0; |
4177 | } | |
4178 | ||
2b07c8b1 BP |
4179 | static void |
4180 | ofproto_compose_flow_refresh_update(const struct rule *rule, | |
4181 | enum nx_flow_monitor_flags flags, | |
4182 | struct list *msgs) | |
4183 | { | |
4184 | struct ofoperation *op = rule->pending; | |
4185 | struct ofputil_flow_update fu; | |
5cb7a798 | 4186 | struct match match; |
2b07c8b1 | 4187 | |
b277c7cc | 4188 | if (op && op->type == OFOPERATION_ADD) { |
2b07c8b1 BP |
4189 | /* We'll report the final flow when the operation completes. Reporting |
4190 | * it now would cause a duplicate report later. */ | |
4191 | return; | |
4192 | } | |
4193 | ||
4194 | fu.event = (flags & (NXFMF_INITIAL | NXFMF_ADD) | |
4195 | ? NXFME_ADDED : NXFME_MODIFIED); | |
4196 | fu.reason = 0; | |
a3779dbc | 4197 | ovs_mutex_lock(&rule->timeout_mutex); |
2b07c8b1 BP |
4198 | fu.idle_timeout = rule->idle_timeout; |
4199 | fu.hard_timeout = rule->hard_timeout; | |
a3779dbc | 4200 | ovs_mutex_unlock(&rule->timeout_mutex); |
2b07c8b1 BP |
4201 | fu.table_id = rule->table_id; |
4202 | fu.cookie = rule->flow_cookie; | |
5cb7a798 BP |
4203 | minimatch_expand(&rule->cr.match, &match); |
4204 | fu.match = &match; | |
6b140a4e | 4205 | fu.priority = rule->cr.priority; |
2b07c8b1 BP |
4206 | if (!(flags & NXFMF_ACTIONS)) { |
4207 | fu.ofpacts = NULL; | |
4208 | fu.ofpacts_len = 0; | |
4209 | } else if (!op) { | |
4210 | fu.ofpacts = rule->ofpacts; | |
4211 | fu.ofpacts_len = rule->ofpacts_len; | |
4212 | } else { | |
4213 | /* An operation is in progress. Use the previous version of the flow's | |
4214 | * actions, so that when the operation commits we report the change. */ | |
4215 | switch (op->type) { | |
4216 | case OFOPERATION_ADD: | |
b277c7cc | 4217 | NOT_REACHED(); |
2b07c8b1 BP |
4218 | |
4219 | case OFOPERATION_MODIFY: | |
b277c7cc | 4220 | case OFOPERATION_REPLACE: |
2b07c8b1 BP |
4221 | if (op->ofpacts) { |
4222 | fu.ofpacts = op->ofpacts; | |
4223 | fu.ofpacts_len = op->ofpacts_len; | |
4224 | } else { | |
4225 | fu.ofpacts = rule->ofpacts; | |
4226 | fu.ofpacts_len = rule->ofpacts_len; | |
4227 | } | |
4228 | break; | |
4229 | ||
4230 | case OFOPERATION_DELETE: | |
4231 | fu.ofpacts = rule->ofpacts; | |
4232 | fu.ofpacts_len = rule->ofpacts_len; | |
4233 | break; | |
4234 | ||
4235 | default: | |
4236 | NOT_REACHED(); | |
4237 | } | |
4238 | } | |
4239 | ||
4240 | if (list_is_empty(msgs)) { | |
4241 | ofputil_start_flow_update(msgs); | |
4242 | } | |
4243 | ofputil_append_flow_update(&fu, msgs); | |
4244 | } | |
4245 | ||
4246 | void | |
4247 | ofmonitor_compose_refresh_updates(struct list *rules, struct list *msgs) | |
4248 | { | |
4249 | struct rule *rule; | |
4250 | ||
4251 | LIST_FOR_EACH (rule, ofproto_node, rules) { | |
4252 | enum nx_flow_monitor_flags flags = rule->monitor_flags; | |
4253 | rule->monitor_flags = 0; | |
4254 | ||
4255 | ofproto_compose_flow_refresh_update(rule, flags, msgs); | |
4256 | } | |
4257 | } | |
4258 | ||
4259 | static void | |
4260 | ofproto_collect_ofmonitor_refresh_rule(const struct ofmonitor *m, | |
4261 | struct rule *rule, uint64_t seqno, | |
4262 | struct list *rules) | |
4263 | { | |
4264 | enum nx_flow_monitor_flags update; | |
4265 | ||
4266 | if (ofproto_rule_is_hidden(rule)) { | |
4267 | return; | |
4268 | } | |
4269 | ||
4270 | if (!(rule->pending | |
4271 | ? ofoperation_has_out_port(rule->pending, m->out_port) | |
4272 | : ofproto_rule_has_out_port(rule, m->out_port))) { | |
4273 | return; | |
4274 | } | |
4275 | ||
4276 | if (seqno) { | |
4277 | if (rule->add_seqno > seqno) { | |
4278 | update = NXFMF_ADD | NXFMF_MODIFY; | |
4279 | } else if (rule->modify_seqno > seqno) { | |
4280 | update = NXFMF_MODIFY; | |
4281 | } else { | |
4282 | return; | |
4283 | } | |
4284 | ||
4285 | if (!(m->flags & update)) { | |
4286 | return; | |
4287 | } | |
4288 | } else { | |
4289 | update = NXFMF_INITIAL; | |
4290 | } | |
4291 | ||
4292 | if (!rule->monitor_flags) { | |
4293 | list_push_back(rules, &rule->ofproto_node); | |
4294 | } | |
4295 | rule->monitor_flags |= update | (m->flags & NXFMF_ACTIONS); | |
4296 | } | |
4297 | ||
4298 | static void | |
4299 | ofproto_collect_ofmonitor_refresh_rules(const struct ofmonitor *m, | |
4300 | uint64_t seqno, | |
4301 | struct list *rules) | |
4302 | { | |
4303 | const struct ofproto *ofproto = ofconn_get_ofproto(m->ofconn); | |
4304 | const struct ofoperation *op; | |
4305 | const struct oftable *table; | |
81a76618 | 4306 | struct cls_rule target; |
2b07c8b1 | 4307 | |
5cb7a798 | 4308 | cls_rule_init_from_minimatch(&target, &m->match, 0); |
2b07c8b1 BP |
4309 | FOR_EACH_MATCHING_TABLE (table, m->table_id, ofproto) { |
4310 | struct cls_cursor cursor; | |
4311 | struct rule *rule; | |
4312 | ||
0b4f2078 | 4313 | ovs_rwlock_rdlock(&table->cls.rwlock); |
81a76618 | 4314 | cls_cursor_init(&cursor, &table->cls, &target); |
2b07c8b1 | 4315 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { |
cb22974d | 4316 | ovs_assert(!rule->pending); /* XXX */ |
2b07c8b1 BP |
4317 | ofproto_collect_ofmonitor_refresh_rule(m, rule, seqno, rules); |
4318 | } | |
0b4f2078 | 4319 | ovs_rwlock_unlock(&table->cls.rwlock); |
2b07c8b1 BP |
4320 | } |
4321 | ||
4322 | HMAP_FOR_EACH (op, hmap_node, &ofproto->deletions) { | |
4323 | struct rule *rule = op->rule; | |
4324 | ||
4325 | if (((m->table_id == 0xff | |
4326 | ? !(ofproto->tables[rule->table_id].flags & OFTABLE_HIDDEN) | |
4327 | : m->table_id == rule->table_id)) | |
81a76618 | 4328 | && cls_rule_is_loose_match(&rule->cr, &target.match)) { |
2b07c8b1 BP |
4329 | ofproto_collect_ofmonitor_refresh_rule(m, rule, seqno, rules); |
4330 | } | |
4331 | } | |
48d28ac1 | 4332 | cls_rule_destroy(&target); |
2b07c8b1 BP |
4333 | } |
4334 | ||
4335 | static void | |
4336 | ofproto_collect_ofmonitor_initial_rules(struct ofmonitor *m, | |
4337 | struct list *rules) | |
4338 | { | |
4339 | if (m->flags & NXFMF_INITIAL) { | |
4340 | ofproto_collect_ofmonitor_refresh_rules(m, 0, rules); | |
4341 | } | |
4342 | } | |
4343 | ||
4344 | void | |
4345 | ofmonitor_collect_resume_rules(struct ofmonitor *m, | |
4346 | uint64_t seqno, struct list *rules) | |
4347 | { | |
4348 | ofproto_collect_ofmonitor_refresh_rules(m, seqno, rules); | |
4349 | } | |
4350 | ||
4351 | static enum ofperr | |
982697a4 | 4352 | handle_flow_monitor_request(struct ofconn *ofconn, const struct ofp_header *oh) |
2b07c8b1 BP |
4353 | { |
4354 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
4355 | struct ofmonitor **monitors; | |
4356 | size_t n_monitors, allocated_monitors; | |
4357 | struct list replies; | |
4358 | enum ofperr error; | |
4359 | struct list rules; | |
4360 | struct ofpbuf b; | |
4361 | size_t i; | |
4362 | ||
4363 | error = 0; | |
982697a4 | 4364 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
2b07c8b1 BP |
4365 | monitors = NULL; |
4366 | n_monitors = allocated_monitors = 0; | |
4367 | for (;;) { | |
4368 | struct ofputil_flow_monitor_request request; | |
4369 | struct ofmonitor *m; | |
4370 | int retval; | |
4371 | ||
4372 | retval = ofputil_decode_flow_monitor_request(&request, &b); | |
4373 | if (retval == EOF) { | |
4374 | break; | |
4375 | } else if (retval) { | |
4376 | error = retval; | |
4377 | goto error; | |
4378 | } | |
4379 | ||
4380 | if (request.table_id != 0xff | |
4381 | && request.table_id >= ofproto->n_tables) { | |
4382 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
4383 | goto error; | |
4384 | } | |
4385 | ||
4386 | error = ofmonitor_create(&request, ofconn, &m); | |
4387 | if (error) { | |
4388 | goto error; | |
4389 | } | |
4390 | ||
4391 | if (n_monitors >= allocated_monitors) { | |
4392 | monitors = x2nrealloc(monitors, &allocated_monitors, | |
4393 | sizeof *monitors); | |
4394 | } | |
4395 | monitors[n_monitors++] = m; | |
4396 | } | |
4397 | ||
4398 | list_init(&rules); | |
4399 | for (i = 0; i < n_monitors; i++) { | |
4400 | ofproto_collect_ofmonitor_initial_rules(monitors[i], &rules); | |
4401 | } | |
4402 | ||
982697a4 | 4403 | ofpmp_init(&replies, oh); |
2b07c8b1 BP |
4404 | ofmonitor_compose_refresh_updates(&rules, &replies); |
4405 | ofconn_send_replies(ofconn, &replies); | |
4406 | ||
4407 | free(monitors); | |
4408 | ||
4409 | return 0; | |
4410 | ||
4411 | error: | |
4412 | for (i = 0; i < n_monitors; i++) { | |
4413 | ofmonitor_destroy(monitors[i]); | |
4414 | } | |
4415 | free(monitors); | |
4416 | return error; | |
4417 | } | |
4418 | ||
4419 | static enum ofperr | |
4420 | handle_flow_monitor_cancel(struct ofconn *ofconn, const struct ofp_header *oh) | |
4421 | { | |
4422 | struct ofmonitor *m; | |
4423 | uint32_t id; | |
4424 | ||
4425 | id = ofputil_decode_flow_monitor_cancel(oh); | |
4426 | m = ofmonitor_lookup(ofconn, id); | |
4427 | if (!m) { | |
4428 | return OFPERR_NXBRC_FM_BAD_ID; | |
4429 | } | |
4430 | ||
4431 | ofmonitor_destroy(m); | |
4432 | return 0; | |
4433 | } | |
4434 | ||
9cae45dc JR |
4435 | /* Meters implementation. |
4436 | * | |
4437 | * Meter table entry, indexed by the OpenFlow meter_id. | |
4438 | * These are always dynamically allocated to allocate enough space for | |
4439 | * the bands. | |
4440 | * 'created' is used to compute the duration for meter stats. | |
4441 | * 'list rules' is needed so that we can delete the dependent rules when the | |
4442 | * meter table entry is deleted. | |
4443 | * 'provider_meter_id' is for the provider's private use. | |
4444 | */ | |
4445 | struct meter { | |
4446 | long long int created; /* Time created. */ | |
4447 | struct list rules; /* List of "struct rule_dpif"s. */ | |
4448 | ofproto_meter_id provider_meter_id; | |
4449 | uint16_t flags; /* Meter flags. */ | |
4450 | uint16_t n_bands; /* Number of meter bands. */ | |
4451 | struct ofputil_meter_band *bands; | |
4452 | }; | |
4453 | ||
4454 | /* | |
4455 | * This is used in instruction validation at flow set-up time, | |
4456 | * as flows may not use non-existing meters. | |
4457 | * This is also used by ofproto-providers to translate OpenFlow meter_ids | |
4458 | * in METER instructions to the corresponding provider meter IDs. | |
4459 | * Return value of UINT32_MAX signifies an invalid meter. | |
4460 | */ | |
4461 | uint32_t | |
4462 | ofproto_get_provider_meter_id(const struct ofproto * ofproto, | |
4463 | uint32_t of_meter_id) | |
4464 | { | |
4465 | if (of_meter_id && of_meter_id <= ofproto->meter_features.max_meters) { | |
4466 | const struct meter *meter = ofproto->meters[of_meter_id]; | |
4467 | if (meter) { | |
4468 | return meter->provider_meter_id.uint32; | |
4469 | } | |
4470 | } | |
4471 | return UINT32_MAX; | |
4472 | } | |
4473 | ||
4474 | static void | |
4475 | meter_update(struct meter *meter, const struct ofputil_meter_config *config) | |
4476 | { | |
4477 | free(meter->bands); | |
4478 | ||
4479 | meter->flags = config->flags; | |
4480 | meter->n_bands = config->n_bands; | |
4481 | meter->bands = xmemdup(config->bands, | |
4482 | config->n_bands * sizeof *meter->bands); | |
4483 | } | |
4484 | ||
4485 | static struct meter * | |
4486 | meter_create(const struct ofputil_meter_config *config, | |
4487 | ofproto_meter_id provider_meter_id) | |
4488 | { | |
4489 | struct meter *meter; | |
4490 | ||
4491 | meter = xzalloc(sizeof *meter); | |
4492 | meter->provider_meter_id = provider_meter_id; | |
4493 | meter->created = time_msec(); | |
4494 | list_init(&meter->rules); | |
4495 | ||
4496 | meter_update(meter, config); | |
4497 | ||
4498 | return meter; | |
4499 | } | |
4500 | ||
6b3f7f02 JR |
4501 | static void |
4502 | meter_delete(struct ofproto *ofproto, uint32_t first, uint32_t last) | |
4503 | { | |
4504 | uint32_t mid; | |
4505 | for (mid = first; mid <= last; ++mid) { | |
4506 | struct meter *meter = ofproto->meters[mid]; | |
4507 | if (meter) { | |
4508 | ofproto->meters[mid] = NULL; | |
4509 | ofproto->ofproto_class->meter_del(ofproto, | |
4510 | meter->provider_meter_id); | |
4511 | free(meter->bands); | |
4512 | free(meter); | |
4513 | } | |
4514 | } | |
4515 | } | |
4516 | ||
9cae45dc JR |
4517 | static enum ofperr |
4518 | handle_add_meter(struct ofproto *ofproto, struct ofputil_meter_mod *mm) | |
4519 | { | |
4520 | ofproto_meter_id provider_meter_id = { UINT32_MAX }; | |
4521 | struct meter **meterp = &ofproto->meters[mm->meter.meter_id]; | |
4522 | enum ofperr error; | |
4523 | ||
4524 | if (*meterp) { | |
4525 | return OFPERR_OFPMMFC_METER_EXISTS; | |
4526 | } | |
4527 | ||
4528 | error = ofproto->ofproto_class->meter_set(ofproto, &provider_meter_id, | |
4529 | &mm->meter); | |
4530 | if (!error) { | |
4531 | ovs_assert(provider_meter_id.uint32 != UINT32_MAX); | |
4532 | *meterp = meter_create(&mm->meter, provider_meter_id); | |
4533 | } | |
4534 | return 0; | |
4535 | } | |
4536 | ||
4537 | static enum ofperr | |
4538 | handle_modify_meter(struct ofproto *ofproto, struct ofputil_meter_mod *mm) | |
4539 | { | |
4540 | struct meter *meter = ofproto->meters[mm->meter.meter_id]; | |
4541 | enum ofperr error; | |
4542 | ||
4543 | if (!meter) { | |
4544 | return OFPERR_OFPMMFC_UNKNOWN_METER; | |
4545 | } | |
4546 | ||
4547 | error = ofproto->ofproto_class->meter_set(ofproto, | |
4548 | &meter->provider_meter_id, | |
4549 | &mm->meter); | |
4550 | ovs_assert(meter->provider_meter_id.uint32 != UINT32_MAX); | |
4551 | if (!error) { | |
4552 | meter_update(meter, &mm->meter); | |
4553 | } | |
4554 | return error; | |
4555 | } | |
4556 | ||
4557 | static enum ofperr | |
4558 | handle_delete_meter(struct ofconn *ofconn, const struct ofp_header *oh, | |
4559 | struct ofputil_meter_mod *mm) | |
4560 | { | |
4561 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
4562 | uint32_t meter_id = mm->meter.meter_id; | |
4563 | uint32_t first, last; | |
4564 | struct list rules; | |
4565 | ||
4566 | if (meter_id == OFPM13_ALL) { | |
4567 | first = 1; | |
4568 | last = ofproto->meter_features.max_meters; | |
4569 | } else { | |
4570 | if (!meter_id || meter_id > ofproto->meter_features.max_meters) { | |
4571 | return 0; | |
4572 | } | |
4573 | first = last = meter_id; | |
4574 | } | |
4575 | ||
4576 | /* First delete the rules that use this meter. If any of those rules are | |
4577 | * currently being modified, postpone the whole operation until later. */ | |
4578 | list_init(&rules); | |
4579 | for (meter_id = first; meter_id <= last; ++meter_id) { | |
4580 | struct meter *meter = ofproto->meters[meter_id]; | |
4581 | if (meter && !list_is_empty(&meter->rules)) { | |
4582 | struct rule *rule; | |
4583 | ||
4584 | LIST_FOR_EACH (rule, meter_list_node, &meter->rules) { | |
4585 | if (rule->pending) { | |
4586 | return OFPROTO_POSTPONE; | |
4587 | } | |
4588 | list_push_back(&rules, &rule->ofproto_node); | |
4589 | } | |
4590 | } | |
4591 | } | |
4592 | if (!list_is_empty(&rules)) { | |
4593 | delete_flows__(ofproto, ofconn, oh, &rules, OFPRR_METER_DELETE); | |
4594 | } | |
4595 | ||
4596 | /* Delete the meters. */ | |
6b3f7f02 | 4597 | meter_delete(ofproto, first, last); |
9cae45dc JR |
4598 | |
4599 | return 0; | |
4600 | } | |
4601 | ||
4602 | static enum ofperr | |
4603 | handle_meter_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
4604 | { | |
4605 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
4606 | struct ofputil_meter_mod mm; | |
4607 | uint64_t bands_stub[256 / 8]; | |
4608 | struct ofpbuf bands; | |
4609 | uint32_t meter_id; | |
4610 | enum ofperr error; | |
4611 | ||
4612 | error = reject_slave_controller(ofconn); | |
4613 | if (error) { | |
4614 | return error; | |
4615 | } | |
4616 | ||
4617 | ofpbuf_use_stub(&bands, bands_stub, sizeof bands_stub); | |
4618 | ||
4619 | error = ofputil_decode_meter_mod(oh, &mm, &bands); | |
4620 | if (error) { | |
4621 | goto exit_free_bands; | |
4622 | } | |
4623 | ||
4624 | meter_id = mm.meter.meter_id; | |
4625 | ||
4626 | if (mm.command != OFPMC13_DELETE) { | |
4627 | /* Fails also when meters are not implemented by the provider. */ | |
4628 | if (!meter_id || meter_id > ofproto->meter_features.max_meters) { | |
4629 | error = OFPERR_OFPMMFC_INVALID_METER; | |
4630 | goto exit_free_bands; | |
4631 | } | |
4632 | if (mm.meter.n_bands > ofproto->meter_features.max_bands) { | |
4633 | error = OFPERR_OFPMMFC_OUT_OF_BANDS; | |
4634 | goto exit_free_bands; | |
4635 | } | |
4636 | } | |
4637 | ||
4638 | switch (mm.command) { | |
4639 | case OFPMC13_ADD: | |
4640 | error = handle_add_meter(ofproto, &mm); | |
4641 | break; | |
4642 | ||
4643 | case OFPMC13_MODIFY: | |
4644 | error = handle_modify_meter(ofproto, &mm); | |
4645 | break; | |
4646 | ||
4647 | case OFPMC13_DELETE: | |
4648 | error = handle_delete_meter(ofconn, oh, &mm); | |
4649 | break; | |
4650 | ||
4651 | default: | |
4652 | error = OFPERR_OFPMMFC_BAD_COMMAND; | |
4653 | break; | |
4654 | } | |
4655 | ||
4656 | exit_free_bands: | |
4657 | ofpbuf_uninit(&bands); | |
4658 | return error; | |
4659 | } | |
4660 | ||
4661 | static enum ofperr | |
4662 | handle_meter_features_request(struct ofconn *ofconn, | |
4663 | const struct ofp_header *request) | |
4664 | { | |
4665 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
4666 | struct ofputil_meter_features features; | |
4667 | struct ofpbuf *b; | |
4668 | ||
4669 | if (ofproto->ofproto_class->meter_get_features) { | |
4670 | ofproto->ofproto_class->meter_get_features(ofproto, &features); | |
4671 | } else { | |
4672 | memset(&features, 0, sizeof features); | |
4673 | } | |
4674 | b = ofputil_encode_meter_features_reply(&features, request); | |
4675 | ||
4676 | ofconn_send_reply(ofconn, b); | |
4677 | return 0; | |
4678 | } | |
4679 | ||
4680 | static enum ofperr | |
4681 | handle_meter_request(struct ofconn *ofconn, const struct ofp_header *request, | |
4682 | enum ofptype type) | |
4683 | { | |
4684 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
4685 | struct list replies; | |
4686 | uint64_t bands_stub[256 / 8]; | |
4687 | struct ofpbuf bands; | |
4688 | uint32_t meter_id, first, last; | |
4689 | ||
4690 | ofputil_decode_meter_request(request, &meter_id); | |
4691 | ||
4692 | if (meter_id == OFPM13_ALL) { | |
4693 | first = 1; | |
4694 | last = ofproto->meter_features.max_meters; | |
4695 | } else { | |
4696 | if (!meter_id || meter_id > ofproto->meter_features.max_meters || | |
4697 | !ofproto->meters[meter_id]) { | |
4698 | return OFPERR_OFPMMFC_UNKNOWN_METER; | |
4699 | } | |
4700 | first = last = meter_id; | |
4701 | } | |
4702 | ||
4703 | ofpbuf_use_stub(&bands, bands_stub, sizeof bands_stub); | |
4704 | ofpmp_init(&replies, request); | |
4705 | ||
4706 | for (meter_id = first; meter_id <= last; ++meter_id) { | |
4707 | struct meter *meter = ofproto->meters[meter_id]; | |
4708 | if (!meter) { | |
4709 | continue; /* Skip non-existing meters. */ | |
4710 | } | |
261bd854 | 4711 | if (type == OFPTYPE_METER_STATS_REQUEST) { |
9cae45dc JR |
4712 | struct ofputil_meter_stats stats; |
4713 | ||
4714 | stats.meter_id = meter_id; | |
4715 | ||
4716 | /* Provider sets the packet and byte counts, we do the rest. */ | |
4717 | stats.flow_count = list_size(&meter->rules); | |
4718 | calc_duration(meter->created, time_msec(), | |
4719 | &stats.duration_sec, &stats.duration_nsec); | |
4720 | stats.n_bands = meter->n_bands; | |
4721 | ofpbuf_clear(&bands); | |
4722 | stats.bands | |
4723 | = ofpbuf_put_uninit(&bands, | |
4724 | meter->n_bands * sizeof *stats.bands); | |
4725 | ||
4726 | if (!ofproto->ofproto_class->meter_get(ofproto, | |
4727 | meter->provider_meter_id, | |
4728 | &stats)) { | |
4729 | ofputil_append_meter_stats(&replies, &stats); | |
4730 | } | |
4731 | } else { /* type == OFPTYPE_METER_CONFIG_REQUEST */ | |
4732 | struct ofputil_meter_config config; | |
4733 | ||
4734 | config.meter_id = meter_id; | |
4735 | config.flags = meter->flags; | |
4736 | config.n_bands = meter->n_bands; | |
4737 | config.bands = meter->bands; | |
4738 | ofputil_append_meter_config(&replies, &config); | |
4739 | } | |
4740 | } | |
4741 | ||
4742 | ofconn_send_replies(ofconn, &replies); | |
4743 | ofpbuf_uninit(&bands); | |
4744 | return 0; | |
4745 | } | |
4746 | ||
7395c052 NZ |
4747 | bool |
4748 | ofproto_group_lookup(const struct ofproto *ofproto, uint32_t group_id, | |
4749 | struct ofgroup **group) | |
4750 | OVS_TRY_RDLOCK(true, (*group)->rwlock) | |
4751 | { | |
4752 | ovs_rwlock_rdlock(&ofproto->groups_rwlock); | |
4753 | HMAP_FOR_EACH_IN_BUCKET (*group, hmap_node, | |
4754 | hash_int(group_id, 0), &ofproto->groups) { | |
4755 | if ((*group)->group_id == group_id) { | |
4756 | ovs_rwlock_rdlock(&(*group)->rwlock); | |
4757 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
4758 | return true; | |
4759 | } | |
4760 | } | |
4761 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
4762 | return false; | |
4763 | } | |
4764 | ||
4765 | void | |
4766 | ofproto_group_release(struct ofgroup *group) | |
4767 | OVS_RELEASES(group->rwlock) | |
4768 | { | |
4769 | ovs_rwlock_unlock(&group->rwlock); | |
4770 | } | |
4771 | ||
4772 | static bool | |
4773 | ofproto_group_write_lookup(const struct ofproto *ofproto, uint32_t group_id, | |
4774 | struct ofgroup **group) | |
4775 | OVS_TRY_WRLOCK(true, ofproto->groups_rwlock) | |
4776 | OVS_TRY_WRLOCK(true, (*group)->rwlock) | |
4777 | { | |
4778 | ovs_rwlock_wrlock(&ofproto->groups_rwlock); | |
4779 | HMAP_FOR_EACH_IN_BUCKET (*group, hmap_node, | |
4780 | hash_int(group_id, 0), &ofproto->groups) { | |
4781 | if ((*group)->group_id == group_id) { | |
4782 | ovs_rwlock_wrlock(&(*group)->rwlock); | |
4783 | return true; | |
4784 | } | |
4785 | } | |
4786 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
4787 | return false; | |
4788 | } | |
4789 | ||
4790 | static bool | |
4791 | ofproto_group_exists(const struct ofproto *ofproto, uint32_t group_id) | |
4792 | OVS_REQ_RDLOCK(ofproto->groups_rwlock) | |
4793 | { | |
4794 | struct ofgroup *grp; | |
4795 | ||
4796 | HMAP_FOR_EACH_IN_BUCKET (grp, hmap_node, | |
4797 | hash_int(group_id, 0), &ofproto->groups) { | |
4798 | if (grp->group_id == group_id) { | |
4799 | return true; | |
4800 | } | |
4801 | } | |
4802 | return false; | |
4803 | } | |
4804 | ||
4805 | static void | |
4806 | append_group_stats(struct ofgroup *group, struct list *replies) | |
4807 | OVS_REQ_RDLOCK(group->rwlock) | |
4808 | { | |
4809 | struct ofputil_group_stats ogs; | |
4810 | struct ofproto *ofproto = group->ofproto; | |
4811 | long long int now = time_msec(); | |
4812 | int error; | |
4813 | ||
646b2a9c SH |
4814 | ogs.bucket_stats = xmalloc(group->n_buckets * sizeof *ogs.bucket_stats); |
4815 | ||
7395c052 NZ |
4816 | error = (ofproto->ofproto_class->group_get_stats |
4817 | ? ofproto->ofproto_class->group_get_stats(group, &ogs) | |
4818 | : EOPNOTSUPP); | |
4819 | if (error) { | |
4820 | ogs.ref_count = UINT32_MAX; | |
4821 | ogs.packet_count = UINT64_MAX; | |
4822 | ogs.byte_count = UINT64_MAX; | |
4823 | ogs.n_buckets = group->n_buckets; | |
4824 | memset(ogs.bucket_stats, 0xff, | |
4825 | ogs.n_buckets * sizeof *ogs.bucket_stats); | |
4826 | } | |
4827 | ||
4828 | ogs.group_id = group->group_id; | |
4829 | calc_duration(group->created, now, &ogs.duration_sec, &ogs.duration_nsec); | |
4830 | ||
4831 | ofputil_append_group_stats(replies, &ogs); | |
646b2a9c SH |
4832 | |
4833 | free(ogs.bucket_stats); | |
7395c052 NZ |
4834 | } |
4835 | ||
4836 | static enum ofperr | |
4837 | handle_group_stats_request(struct ofconn *ofconn, | |
4838 | const struct ofp_header *request) | |
4839 | { | |
4840 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
4841 | struct list replies; | |
4842 | enum ofperr error; | |
4843 | struct ofgroup *group; | |
4844 | uint32_t group_id; | |
4845 | ||
4846 | error = ofputil_decode_group_stats_request(request, &group_id); | |
4847 | if (error) { | |
4848 | return error; | |
4849 | } | |
4850 | ||
4851 | ofpmp_init(&replies, request); | |
4852 | ||
4853 | if (group_id == OFPG_ALL) { | |
4854 | ovs_rwlock_rdlock(&ofproto->groups_rwlock); | |
4855 | HMAP_FOR_EACH (group, hmap_node, &ofproto->groups) { | |
4856 | ovs_rwlock_rdlock(&group->rwlock); | |
4857 | append_group_stats(group, &replies); | |
4858 | ovs_rwlock_unlock(&group->rwlock); | |
4859 | } | |
4860 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
4861 | } else { | |
4862 | if (ofproto_group_lookup(ofproto, group_id, &group)) { | |
4863 | append_group_stats(group, &replies); | |
4864 | ofproto_group_release(group); | |
4865 | } | |
4866 | } | |
4867 | ||
4868 | ofconn_send_replies(ofconn, &replies); | |
4869 | ||
4870 | return 0; | |
4871 | } | |
4872 | ||
4873 | static enum ofperr | |
4874 | handle_group_desc_stats_request(struct ofconn *ofconn, | |
4875 | const struct ofp_header *request) | |
4876 | { | |
4877 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
4878 | struct list replies; | |
4879 | struct ofputil_group_desc gds; | |
4880 | struct ofgroup *group; | |
4881 | ||
4882 | ofpmp_init(&replies, request); | |
4883 | ||
4884 | ovs_rwlock_rdlock(&ofproto->groups_rwlock); | |
4885 | HMAP_FOR_EACH (group, hmap_node, &ofproto->groups) { | |
4886 | gds.group_id = group->group_id; | |
4887 | gds.type = group->type; | |
4888 | ofputil_append_group_desc_reply(&gds, &group->buckets, &replies); | |
4889 | } | |
4890 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
4891 | ||
4892 | ofconn_send_replies(ofconn, &replies); | |
4893 | ||
4894 | return 0; | |
4895 | } | |
4896 | ||
4897 | static enum ofperr | |
4898 | handle_group_features_stats_request(struct ofconn *ofconn, | |
4899 | const struct ofp_header *request) | |
4900 | { | |
4901 | struct ofproto *p = ofconn_get_ofproto(ofconn); | |
4902 | struct ofpbuf *msg; | |
4903 | ||
4904 | msg = ofputil_encode_group_features_reply(&p->ogf, request); | |
4905 | if (msg) { | |
4906 | ofconn_send_reply(ofconn, msg); | |
4907 | } | |
4908 | ||
4909 | return 0; | |
4910 | } | |
4911 | ||
4912 | /* Implements OFPGC11_ADD | |
4913 | * in which no matching flow already exists in the flow table. | |
4914 | * | |
4915 | * Adds the flow specified by 'ofm', which is followed by 'n_actions' | |
4916 | * ofp_actions, to the ofproto's flow table. Returns 0 on success, an OpenFlow | |
4917 | * error code on failure, or OFPROTO_POSTPONE if the operation cannot be | |
4918 | * initiated now but may be retried later. | |
4919 | * | |
4920 | * Upon successful return, takes ownership of 'fm->ofpacts'. On failure, | |
4921 | * ownership remains with the caller. | |
4922 | * | |
4923 | * 'ofconn' is used to retrieve the packet buffer specified in ofm->buffer_id, | |
4924 | * if any. */ | |
4925 | static enum ofperr | |
4926 | add_group(struct ofproto *ofproto, struct ofputil_group_mod *gm) | |
4927 | { | |
4928 | struct ofgroup *ofgroup; | |
4929 | enum ofperr error; | |
4930 | ||
4931 | if (gm->group_id > OFPG_MAX) { | |
4932 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
4933 | } | |
4934 | if (gm->type > OFPGT11_FF) { | |
4935 | return OFPERR_OFPGMFC_BAD_TYPE; | |
4936 | } | |
4937 | ||
4938 | /* Allocate new group and initialize it. */ | |
4939 | ofgroup = ofproto->ofproto_class->group_alloc(); | |
4940 | if (!ofgroup) { | |
4941 | VLOG_WARN_RL(&rl, "%s: failed to create group", ofproto->name); | |
4942 | return OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
4943 | } | |
4944 | ||
4945 | ovs_rwlock_init(&ofgroup->rwlock); | |
4946 | ofgroup->ofproto = ofproto; | |
4947 | ofgroup->group_id = gm->group_id; | |
4948 | ofgroup->type = gm->type; | |
4949 | ofgroup->created = ofgroup->modified = time_msec(); | |
4950 | ||
4951 | list_move(&ofgroup->buckets, &gm->buckets); | |
4952 | ofgroup->n_buckets = list_size(&ofgroup->buckets); | |
4953 | ||
4954 | /* Construct called BEFORE any locks are held. */ | |
4955 | error = ofproto->ofproto_class->group_construct(ofgroup); | |
4956 | if (error) { | |
4957 | goto free_out; | |
4958 | } | |
4959 | ||
4960 | /* We wrlock as late as possible to minimize the time we jam any other | |
4961 | * threads: No visible state changes before acquiring the lock. */ | |
4962 | ovs_rwlock_wrlock(&ofproto->groups_rwlock); | |
4963 | ||
4964 | if (ofproto->n_groups[gm->type] >= ofproto->ogf.max_groups[gm->type]) { | |
4965 | error = OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
4966 | goto unlock_out; | |
4967 | } | |
4968 | ||
4969 | if (ofproto_group_exists(ofproto, gm->group_id)) { | |
4970 | error = OFPERR_OFPGMFC_GROUP_EXISTS; | |
4971 | goto unlock_out; | |
4972 | } | |
4973 | ||
4974 | if (!error) { | |
4975 | /* Insert new group. */ | |
4976 | hmap_insert(&ofproto->groups, &ofgroup->hmap_node, | |
4977 | hash_int(ofgroup->group_id, 0)); | |
4978 | ofproto->n_groups[ofgroup->type]++; | |
4979 | ||
4980 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
4981 | return error; | |
4982 | } | |
4983 | ||
4984 | unlock_out: | |
4985 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
4986 | ofproto->ofproto_class->group_destruct(ofgroup); | |
4987 | free_out: | |
4988 | ofputil_bucket_list_destroy(&ofgroup->buckets); | |
4989 | ofproto->ofproto_class->group_dealloc(ofgroup); | |
4990 | ||
4991 | return error; | |
4992 | } | |
4993 | ||
4994 | /* Implements OFPFC_MODIFY. Returns 0 on success or an OpenFlow error code on | |
4995 | * failure. | |
4996 | * | |
4997 | * 'ofconn' is used to retrieve the packet buffer specified in fm->buffer_id, | |
4998 | * if any. */ | |
4999 | static enum ofperr | |
5000 | modify_group(struct ofproto *ofproto, struct ofputil_group_mod *gm) | |
5001 | { | |
5002 | struct ofgroup *ofgroup; | |
5003 | struct ofgroup *victim; | |
5004 | enum ofperr error; | |
5005 | ||
5006 | if (gm->group_id > OFPG_MAX) { | |
5007 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
5008 | } | |
5009 | ||
5010 | if (gm->type > OFPGT11_FF) { | |
5011 | return OFPERR_OFPGMFC_BAD_TYPE; | |
5012 | } | |
5013 | ||
5014 | victim = ofproto->ofproto_class->group_alloc(); | |
5015 | if (!victim) { | |
5016 | VLOG_WARN_RL(&rl, "%s: failed to allocate group", ofproto->name); | |
5017 | return OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
5018 | } | |
5019 | ||
5020 | if (!ofproto_group_write_lookup(ofproto, gm->group_id, &ofgroup)) { | |
5021 | error = OFPERR_OFPGMFC_UNKNOWN_GROUP; | |
5022 | goto free_out; | |
5023 | } | |
5024 | /* Both group's and its container's write locks held now. | |
5025 | * Also, n_groups[] is protected by ofproto->groups_rwlock. */ | |
5026 | if (ofgroup->type != gm->type | |
5027 | && ofproto->n_groups[gm->type] >= ofproto->ogf.max_groups[gm->type]) { | |
5028 | error = OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
5029 | goto unlock_out; | |
5030 | } | |
5031 | ||
5032 | *victim = *ofgroup; | |
5033 | list_move(&victim->buckets, &ofgroup->buckets); | |
5034 | ||
5035 | ofgroup->type = gm->type; | |
5036 | list_move(&ofgroup->buckets, &gm->buckets); | |
5037 | ofgroup->n_buckets = list_size(&ofgroup->buckets); | |
5038 | ||
5039 | error = ofproto->ofproto_class->group_modify(ofgroup, victim); | |
5040 | if (!error) { | |
5041 | ofputil_bucket_list_destroy(&victim->buckets); | |
5042 | ofproto->n_groups[victim->type]--; | |
5043 | ofproto->n_groups[ofgroup->type]++; | |
5044 | ofgroup->modified = time_msec(); | |
5045 | } else { | |
5046 | ofputil_bucket_list_destroy(&ofgroup->buckets); | |
5047 | ||
5048 | *ofgroup = *victim; | |
5049 | list_move(&ofgroup->buckets, &victim->buckets); | |
5050 | } | |
5051 | ||
5052 | unlock_out: | |
5053 | ovs_rwlock_unlock(&ofgroup->rwlock); | |
5054 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
5055 | free_out: | |
5056 | ofproto->ofproto_class->group_dealloc(victim); | |
5057 | return error; | |
5058 | } | |
5059 | ||
5060 | static void | |
5061 | delete_group__(struct ofproto *ofproto, struct ofgroup *ofgroup) | |
5062 | OVS_RELEASES(ofproto->groups_rwlock) | |
5063 | { | |
5064 | /* Must wait until existing readers are done, | |
5065 | * while holding the container's write lock at the same time. */ | |
5066 | ovs_rwlock_wrlock(&ofgroup->rwlock); | |
5067 | hmap_remove(&ofproto->groups, &ofgroup->hmap_node); | |
5068 | /* No-one can find this group any more. */ | |
5069 | ofproto->n_groups[ofgroup->type]--; | |
5070 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
5071 | ||
5072 | ofproto->ofproto_class->group_destruct(ofgroup); | |
5073 | ofputil_bucket_list_destroy(&ofgroup->buckets); | |
5074 | ovs_rwlock_unlock(&ofgroup->rwlock); | |
5075 | ovs_rwlock_destroy(&ofgroup->rwlock); | |
5076 | ofproto->ofproto_class->group_dealloc(ofgroup); | |
5077 | } | |
5078 | ||
5079 | /* Implements OFPGC_DELETE. */ | |
5080 | static void | |
5081 | delete_group(struct ofproto *ofproto, uint32_t group_id) | |
5082 | { | |
5083 | struct ofgroup *ofgroup; | |
5084 | ||
5085 | ovs_rwlock_wrlock(&ofproto->groups_rwlock); | |
5086 | if (group_id == OFPG_ALL) { | |
5087 | for (;;) { | |
5088 | struct hmap_node *node = hmap_first(&ofproto->groups); | |
5089 | if (!node) { | |
5090 | break; | |
5091 | } | |
5092 | ofgroup = CONTAINER_OF(node, struct ofgroup, hmap_node); | |
5093 | delete_group__(ofproto, ofgroup); | |
5094 | /* Lock for each node separately, so that we will not jam the | |
5095 | * other threads for too long time. */ | |
5096 | ovs_rwlock_wrlock(&ofproto->groups_rwlock); | |
5097 | } | |
5098 | } else { | |
5099 | HMAP_FOR_EACH_IN_BUCKET (ofgroup, hmap_node, | |
5100 | hash_int(group_id, 0), &ofproto->groups) { | |
5101 | if (ofgroup->group_id == group_id) { | |
5102 | delete_group__(ofproto, ofgroup); | |
5103 | return; | |
5104 | } | |
5105 | } | |
5106 | } | |
5107 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
5108 | } | |
5109 | ||
5110 | static enum ofperr | |
5111 | handle_group_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
5112 | { | |
5113 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
5114 | struct ofputil_group_mod gm; | |
5115 | enum ofperr error; | |
5116 | ||
5117 | error = reject_slave_controller(ofconn); | |
5118 | if (error) { | |
5119 | return error; | |
5120 | } | |
5121 | ||
5122 | error = ofputil_decode_group_mod(oh, &gm); | |
5123 | if (error) { | |
5124 | return error; | |
5125 | } | |
5126 | ||
5127 | switch (gm.command) { | |
5128 | case OFPGC11_ADD: | |
5129 | return add_group(ofproto, &gm); | |
5130 | ||
5131 | case OFPGC11_MODIFY: | |
5132 | return modify_group(ofproto, &gm); | |
5133 | ||
5134 | case OFPGC11_DELETE: | |
5135 | delete_group(ofproto, gm.group_id); | |
5136 | return 0; | |
5137 | ||
5138 | default: | |
5139 | if (gm.command > OFPGC11_DELETE) { | |
5140 | VLOG_WARN_RL(&rl, "%s: Invalid group_mod command type %d", | |
5141 | ofproto->name, gm.command); | |
5142 | } | |
5143 | return OFPERR_OFPGMFC_BAD_COMMAND; | |
5144 | } | |
5145 | } | |
5146 | ||
918f2b82 AZ |
5147 | static enum ofperr |
5148 | handle_table_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
5149 | { | |
5150 | struct ofputil_table_mod tm; | |
5151 | enum ofperr error; | |
5152 | ||
5153 | error = reject_slave_controller(ofconn); | |
5154 | if (error) { | |
5155 | return error; | |
5156 | } | |
5157 | ||
5158 | error = ofputil_decode_table_mod(oh, &tm); | |
5159 | if (error) { | |
5160 | return error; | |
5161 | } | |
5162 | ||
5163 | /* XXX Actual table mod support is not implemented yet. */ | |
5164 | return 0; | |
5165 | } | |
5166 | ||
90bf1e07 | 5167 | static enum ofperr |
d1e2cf21 | 5168 | handle_openflow__(struct ofconn *ofconn, const struct ofpbuf *msg) |
064af421 | 5169 | { |
d1e2cf21 | 5170 | const struct ofp_header *oh = msg->data; |
982697a4 | 5171 | enum ofptype type; |
90bf1e07 | 5172 | enum ofperr error; |
064af421 | 5173 | |
982697a4 | 5174 | error = ofptype_decode(&type, oh); |
d1e2cf21 BP |
5175 | if (error) { |
5176 | return error; | |
5177 | } | |
064af421 | 5178 | |
982697a4 | 5179 | switch (type) { |
d1e2cf21 | 5180 | /* OpenFlow requests. */ |
982697a4 | 5181 | case OFPTYPE_ECHO_REQUEST: |
d1e2cf21 | 5182 | return handle_echo_request(ofconn, oh); |
064af421 | 5183 | |
982697a4 | 5184 | case OFPTYPE_FEATURES_REQUEST: |
d1e2cf21 | 5185 | return handle_features_request(ofconn, oh); |
064af421 | 5186 | |
982697a4 | 5187 | case OFPTYPE_GET_CONFIG_REQUEST: |
d1e2cf21 | 5188 | return handle_get_config_request(ofconn, oh); |
064af421 | 5189 | |
982697a4 BP |
5190 | case OFPTYPE_SET_CONFIG: |
5191 | return handle_set_config(ofconn, oh); | |
064af421 | 5192 | |
982697a4 BP |
5193 | case OFPTYPE_PACKET_OUT: |
5194 | return handle_packet_out(ofconn, oh); | |
064af421 | 5195 | |
982697a4 | 5196 | case OFPTYPE_PORT_MOD: |
d1e2cf21 | 5197 | return handle_port_mod(ofconn, oh); |
064af421 | 5198 | |
982697a4 | 5199 | case OFPTYPE_FLOW_MOD: |
2e4f5fcf | 5200 | return handle_flow_mod(ofconn, oh); |
064af421 | 5201 | |
7395c052 NZ |
5202 | case OFPTYPE_GROUP_MOD: |
5203 | return handle_group_mod(ofconn, oh); | |
5204 | ||
918f2b82 AZ |
5205 | case OFPTYPE_TABLE_MOD: |
5206 | return handle_table_mod(ofconn, oh); | |
5207 | ||
9cae45dc JR |
5208 | case OFPTYPE_METER_MOD: |
5209 | return handle_meter_mod(ofconn, oh); | |
5210 | ||
982697a4 | 5211 | case OFPTYPE_BARRIER_REQUEST: |
d1e2cf21 | 5212 | return handle_barrier_request(ofconn, oh); |
064af421 | 5213 | |
6ea4776b JR |
5214 | case OFPTYPE_ROLE_REQUEST: |
5215 | return handle_role_request(ofconn, oh); | |
5216 | ||
d1e2cf21 | 5217 | /* OpenFlow replies. */ |
982697a4 | 5218 | case OFPTYPE_ECHO_REPLY: |
d1e2cf21 | 5219 | return 0; |
246e61ea | 5220 | |
d1e2cf21 | 5221 | /* Nicira extension requests. */ |
982697a4 | 5222 | case OFPTYPE_FLOW_MOD_TABLE_ID: |
6c1491fb | 5223 | return handle_nxt_flow_mod_table_id(ofconn, oh); |
d1e2cf21 | 5224 | |
982697a4 | 5225 | case OFPTYPE_SET_FLOW_FORMAT: |
d1e2cf21 BP |
5226 | return handle_nxt_set_flow_format(ofconn, oh); |
5227 | ||
982697a4 | 5228 | case OFPTYPE_SET_PACKET_IN_FORMAT: |
54834960 EJ |
5229 | return handle_nxt_set_packet_in_format(ofconn, oh); |
5230 | ||
982697a4 | 5231 | case OFPTYPE_SET_CONTROLLER_ID: |
a7349929 BP |
5232 | return handle_nxt_set_controller_id(ofconn, oh); |
5233 | ||
982697a4 | 5234 | case OFPTYPE_FLOW_AGE: |
f27f2134 BP |
5235 | /* Nothing to do. */ |
5236 | return 0; | |
5237 | ||
982697a4 | 5238 | case OFPTYPE_FLOW_MONITOR_CANCEL: |
2b07c8b1 BP |
5239 | return handle_flow_monitor_cancel(ofconn, oh); |
5240 | ||
982697a4 | 5241 | case OFPTYPE_SET_ASYNC_CONFIG: |
80d5aefd BP |
5242 | return handle_nxt_set_async_config(ofconn, oh); |
5243 | ||
c423b3b3 AC |
5244 | case OFPTYPE_GET_ASYNC_REQUEST: |
5245 | return handle_nxt_get_async_request(ofconn, oh); | |
5246 | ||
349adfb2 | 5247 | /* Statistics requests. */ |
982697a4 BP |
5248 | case OFPTYPE_DESC_STATS_REQUEST: |
5249 | return handle_desc_stats_request(ofconn, oh); | |
5250 | ||
5251 | case OFPTYPE_FLOW_STATS_REQUEST: | |
5252 | return handle_flow_stats_request(ofconn, oh); | |
5253 | ||
5254 | case OFPTYPE_AGGREGATE_STATS_REQUEST: | |
5255 | return handle_aggregate_stats_request(ofconn, oh); | |
5256 | ||
5257 | case OFPTYPE_TABLE_STATS_REQUEST: | |
5258 | return handle_table_stats_request(ofconn, oh); | |
5259 | ||
5260 | case OFPTYPE_PORT_STATS_REQUEST: | |
5261 | return handle_port_stats_request(ofconn, oh); | |
5262 | ||
5263 | case OFPTYPE_QUEUE_STATS_REQUEST: | |
5264 | return handle_queue_stats_request(ofconn, oh); | |
5265 | ||
5266 | case OFPTYPE_PORT_DESC_STATS_REQUEST: | |
5267 | return handle_port_desc_stats_request(ofconn, oh); | |
5268 | ||
5269 | case OFPTYPE_FLOW_MONITOR_STATS_REQUEST: | |
5270 | return handle_flow_monitor_request(ofconn, oh); | |
5271 | ||
261bd854 BP |
5272 | case OFPTYPE_METER_STATS_REQUEST: |
5273 | case OFPTYPE_METER_CONFIG_STATS_REQUEST: | |
9cae45dc JR |
5274 | return handle_meter_request(ofconn, oh, type); |
5275 | ||
261bd854 | 5276 | case OFPTYPE_METER_FEATURES_STATS_REQUEST: |
9cae45dc JR |
5277 | return handle_meter_features_request(ofconn, oh); |
5278 | ||
261bd854 | 5279 | case OFPTYPE_GROUP_STATS_REQUEST: |
7395c052 NZ |
5280 | return handle_group_stats_request(ofconn, oh); |
5281 | ||
261bd854 | 5282 | case OFPTYPE_GROUP_DESC_STATS_REQUEST: |
7395c052 NZ |
5283 | return handle_group_desc_stats_request(ofconn, oh); |
5284 | ||
261bd854 | 5285 | case OFPTYPE_GROUP_FEATURES_STATS_REQUEST: |
7395c052 NZ |
5286 | return handle_group_features_stats_request(ofconn, oh); |
5287 | ||
5288 | /* FIXME: Change the following once they are implemented: */ | |
5289 | case OFPTYPE_QUEUE_GET_CONFIG_REQUEST: | |
261bd854 | 5290 | case OFPTYPE_TABLE_FEATURES_STATS_REQUEST: |
2e1ae200 JR |
5291 | return OFPERR_OFPBRC_BAD_TYPE; |
5292 | ||
982697a4 BP |
5293 | case OFPTYPE_HELLO: |
5294 | case OFPTYPE_ERROR: | |
5295 | case OFPTYPE_FEATURES_REPLY: | |
5296 | case OFPTYPE_GET_CONFIG_REPLY: | |
5297 | case OFPTYPE_PACKET_IN: | |
5298 | case OFPTYPE_FLOW_REMOVED: | |
5299 | case OFPTYPE_PORT_STATUS: | |
5300 | case OFPTYPE_BARRIER_REPLY: | |
c545d38d | 5301 | case OFPTYPE_QUEUE_GET_CONFIG_REPLY: |
982697a4 BP |
5302 | case OFPTYPE_DESC_STATS_REPLY: |
5303 | case OFPTYPE_FLOW_STATS_REPLY: | |
5304 | case OFPTYPE_QUEUE_STATS_REPLY: | |
5305 | case OFPTYPE_PORT_STATS_REPLY: | |
5306 | case OFPTYPE_TABLE_STATS_REPLY: | |
5307 | case OFPTYPE_AGGREGATE_STATS_REPLY: | |
5308 | case OFPTYPE_PORT_DESC_STATS_REPLY: | |
5309 | case OFPTYPE_ROLE_REPLY: | |
5310 | case OFPTYPE_FLOW_MONITOR_PAUSED: | |
5311 | case OFPTYPE_FLOW_MONITOR_RESUMED: | |
5312 | case OFPTYPE_FLOW_MONITOR_STATS_REPLY: | |
2e1ae200 | 5313 | case OFPTYPE_GET_ASYNC_REPLY: |
261bd854 BP |
5314 | case OFPTYPE_GROUP_STATS_REPLY: |
5315 | case OFPTYPE_GROUP_DESC_STATS_REPLY: | |
5316 | case OFPTYPE_GROUP_FEATURES_STATS_REPLY: | |
5317 | case OFPTYPE_METER_STATS_REPLY: | |
5318 | case OFPTYPE_METER_CONFIG_STATS_REPLY: | |
5319 | case OFPTYPE_METER_FEATURES_STATS_REPLY: | |
5320 | case OFPTYPE_TABLE_FEATURES_STATS_REPLY: | |
064af421 | 5321 | default: |
982697a4 | 5322 | return OFPERR_OFPBRC_BAD_TYPE; |
064af421 | 5323 | } |
d1e2cf21 | 5324 | } |
064af421 | 5325 | |
7ee20df1 | 5326 | static bool |
e03248b7 | 5327 | handle_openflow(struct ofconn *ofconn, const struct ofpbuf *ofp_msg) |
d1e2cf21 BP |
5328 | { |
5329 | int error = handle_openflow__(ofconn, ofp_msg); | |
7ee20df1 | 5330 | if (error && error != OFPROTO_POSTPONE) { |
1be5ff75 | 5331 | ofconn_send_error(ofconn, ofp_msg->data, error); |
064af421 | 5332 | } |
d1e2cf21 | 5333 | COVERAGE_INC(ofproto_recv_openflow); |
7ee20df1 BP |
5334 | return error != OFPROTO_POSTPONE; |
5335 | } | |
5336 | \f | |
5337 | /* Asynchronous operations. */ | |
5338 | ||
5339 | /* Creates and returns a new ofopgroup that is not associated with any | |
5340 | * OpenFlow connection. | |
5341 | * | |
5342 | * The caller should add operations to the returned group with | |
5343 | * ofoperation_create() and then submit it with ofopgroup_submit(). */ | |
5344 | static struct ofopgroup * | |
7024dffe | 5345 | ofopgroup_create_unattached(struct ofproto *ofproto) |
7ee20df1 BP |
5346 | { |
5347 | struct ofopgroup *group = xzalloc(sizeof *group); | |
5348 | group->ofproto = ofproto; | |
5349 | list_init(&group->ofproto_node); | |
5350 | list_init(&group->ops); | |
5351 | list_init(&group->ofconn_node); | |
5352 | return group; | |
5353 | } | |
5354 | ||
7024dffe BP |
5355 | /* Creates and returns a new ofopgroup for 'ofproto'. |
5356 | * | |
5357 | * If 'ofconn' is NULL, the new ofopgroup is not associated with any OpenFlow | |
5358 | * connection. The 'request' and 'buffer_id' arguments are ignored. | |
5359 | * | |
5360 | * If 'ofconn' is nonnull, then the new ofopgroup is associated with 'ofconn'. | |
5361 | * If the ofopgroup eventually fails, then the error reply will include | |
5362 | * 'request'. If the ofopgroup eventually succeeds, then the packet with | |
5363 | * buffer id 'buffer_id' on 'ofconn' will be sent by 'ofconn''s ofproto. | |
7ee20df1 BP |
5364 | * |
5365 | * The caller should add operations to the returned group with | |
5366 | * ofoperation_create() and then submit it with ofopgroup_submit(). */ | |
5367 | static struct ofopgroup * | |
7024dffe BP |
5368 | ofopgroup_create(struct ofproto *ofproto, struct ofconn *ofconn, |
5369 | const struct ofp_header *request, uint32_t buffer_id) | |
7ee20df1 | 5370 | { |
7024dffe BP |
5371 | struct ofopgroup *group = ofopgroup_create_unattached(ofproto); |
5372 | if (ofconn) { | |
5373 | size_t request_len = ntohs(request->length); | |
7ee20df1 | 5374 | |
cb22974d | 5375 | ovs_assert(ofconn_get_ofproto(ofconn) == ofproto); |
7ee20df1 | 5376 | |
7024dffe BP |
5377 | ofconn_add_opgroup(ofconn, &group->ofconn_node); |
5378 | group->ofconn = ofconn; | |
5379 | group->request = xmemdup(request, MIN(request_len, 64)); | |
5380 | group->buffer_id = buffer_id; | |
5381 | } | |
7ee20df1 BP |
5382 | return group; |
5383 | } | |
5384 | ||
5385 | /* Submits 'group' for processing. | |
5386 | * | |
5387 | * If 'group' contains no operations (e.g. none were ever added, or all of the | |
5388 | * ones that were added completed synchronously), then it is destroyed | |
5389 | * immediately. Otherwise it is added to the ofproto's list of pending | |
5390 | * groups. */ | |
5391 | static void | |
5392 | ofopgroup_submit(struct ofopgroup *group) | |
5393 | { | |
e615b0a3 BP |
5394 | if (!group->n_running) { |
5395 | ofopgroup_complete(group); | |
7ee20df1 BP |
5396 | } else { |
5397 | list_push_back(&group->ofproto->pending, &group->ofproto_node); | |
dd5616b3 | 5398 | group->ofproto->n_pending++; |
7ee20df1 BP |
5399 | } |
5400 | } | |
5401 | ||
5402 | static void | |
e615b0a3 | 5403 | ofopgroup_complete(struct ofopgroup *group) |
7ee20df1 | 5404 | { |
e615b0a3 | 5405 | struct ofproto *ofproto = group->ofproto; |
2b07c8b1 BP |
5406 | |
5407 | struct ofconn *abbrev_ofconn; | |
5408 | ovs_be32 abbrev_xid; | |
5409 | ||
e615b0a3 BP |
5410 | struct ofoperation *op, *next_op; |
5411 | int error; | |
5412 | ||
cb22974d | 5413 | ovs_assert(!group->n_running); |
e615b0a3 BP |
5414 | |
5415 | error = 0; | |
5416 | LIST_FOR_EACH (op, group_node, &group->ops) { | |
5417 | if (op->error) { | |
5418 | error = op->error; | |
5419 | break; | |
5420 | } | |
5421 | } | |
5422 | ||
5423 | if (!error && group->ofconn && group->buffer_id != UINT32_MAX) { | |
5424 | LIST_FOR_EACH (op, group_node, &group->ops) { | |
5425 | if (op->type != OFOPERATION_DELETE) { | |
5426 | struct ofpbuf *packet; | |
4e022ec0 | 5427 | ofp_port_t in_port; |
e615b0a3 BP |
5428 | |
5429 | error = ofconn_pktbuf_retrieve(group->ofconn, group->buffer_id, | |
5430 | &packet, &in_port); | |
5431 | if (packet) { | |
cb22974d | 5432 | ovs_assert(!error); |
e615b0a3 BP |
5433 | error = rule_execute(op->rule, in_port, packet); |
5434 | } | |
5435 | break; | |
5436 | } | |
5437 | } | |
5438 | } | |
5439 | ||
2b07c8b1 BP |
5440 | if (!error && !list_is_empty(&group->ofconn_node)) { |
5441 | abbrev_ofconn = group->ofconn; | |
5442 | abbrev_xid = group->request->xid; | |
5443 | } else { | |
5444 | abbrev_ofconn = NULL; | |
5445 | abbrev_xid = htonl(0); | |
5446 | } | |
e615b0a3 BP |
5447 | LIST_FOR_EACH_SAFE (op, next_op, group_node, &group->ops) { |
5448 | struct rule *rule = op->rule; | |
2b07c8b1 | 5449 | |
644e2a7c BP |
5450 | /* We generally want to report the change to active OpenFlow flow |
5451 | monitors (e.g. NXST_FLOW_MONITOR). There are three exceptions: | |
5452 | ||
5453 | - The operation failed. | |
5454 | ||
5455 | - The affected rule is not visible to controllers. | |
5456 | ||
5457 | - The operation's only effect was to update rule->modified. */ | |
5458 | if (!(op->error | |
5459 | || ofproto_rule_is_hidden(rule) | |
5460 | || (op->type == OFOPERATION_MODIFY | |
5461 | && op->ofpacts | |
5462 | && rule->flow_cookie == op->flow_cookie))) { | |
2b07c8b1 BP |
5463 | /* Check that we can just cast from ofoperation_type to |
5464 | * nx_flow_update_event. */ | |
b277c7cc BP |
5465 | enum nx_flow_update_event event_type; |
5466 | ||
5467 | switch (op->type) { | |
5468 | case OFOPERATION_ADD: | |
5469 | case OFOPERATION_REPLACE: | |
5470 | event_type = NXFME_ADDED; | |
5471 | break; | |
5472 | ||
5473 | case OFOPERATION_DELETE: | |
5474 | event_type = NXFME_DELETED; | |
5475 | break; | |
5476 | ||
5477 | case OFOPERATION_MODIFY: | |
5478 | event_type = NXFME_MODIFIED; | |
5479 | break; | |
5480 | ||
5481 | default: | |
5482 | NOT_REACHED(); | |
5483 | } | |
5484 | ||
5485 | ofmonitor_report(ofproto->connmgr, rule, event_type, | |
2b07c8b1 BP |
5486 | op->reason, abbrev_ofconn, abbrev_xid); |
5487 | } | |
5488 | ||
e615b0a3 BP |
5489 | rule->pending = NULL; |
5490 | ||
5491 | switch (op->type) { | |
5492 | case OFOPERATION_ADD: | |
5493 | if (!op->error) { | |
5cb7a798 BP |
5494 | uint16_t vid_mask; |
5495 | ||
5cb7a798 BP |
5496 | vid_mask = minimask_get_vid_mask(&rule->cr.match.mask); |
5497 | if (vid_mask == VLAN_VID_MASK) { | |
e615b0a3 | 5498 | if (ofproto->vlan_bitmap) { |
5cb7a798 | 5499 | uint16_t vid = miniflow_get_vid(&rule->cr.match.flow); |
e615b0a3 BP |
5500 | if (!bitmap_is_set(ofproto->vlan_bitmap, vid)) { |
5501 | bitmap_set1(ofproto->vlan_bitmap, vid); | |
5502 | ofproto->vlans_changed = true; | |
5503 | } | |
5504 | } else { | |
5505 | ofproto->vlans_changed = true; | |
5506 | } | |
5507 | } | |
5508 | } else { | |
884e1dc4 | 5509 | ovs_rwlock_wrlock(&rule->rwlock); |
b277c7cc | 5510 | oftable_remove_rule(rule); |
e615b0a3 BP |
5511 | ofproto_rule_destroy__(rule); |
5512 | } | |
5513 | break; | |
5514 | ||
5515 | case OFOPERATION_DELETE: | |
cb22974d | 5516 | ovs_assert(!op->error); |
e615b0a3 BP |
5517 | ofproto_rule_destroy__(rule); |
5518 | op->rule = NULL; | |
5519 | break; | |
5520 | ||
5521 | case OFOPERATION_MODIFY: | |
b277c7cc | 5522 | case OFOPERATION_REPLACE: |
e615b0a3 | 5523 | if (!op->error) { |
b277c7cc BP |
5524 | long long int now = time_msec(); |
5525 | ||
5526 | rule->modified = now; | |
5527 | if (op->type == OFOPERATION_REPLACE) { | |
5528 | rule->created = rule->used = now; | |
5529 | } | |
e615b0a3 | 5530 | } else { |
98eaac36 | 5531 | ofproto_rule_change_cookie(ofproto, rule, op->flow_cookie); |
b277c7cc BP |
5532 | ovs_mutex_lock(&rule->timeout_mutex); |
5533 | rule->idle_timeout = op->idle_timeout; | |
5534 | rule->hard_timeout = op->hard_timeout; | |
5535 | ovs_mutex_unlock(&rule->timeout_mutex); | |
08043761 BP |
5536 | if (op->ofpacts) { |
5537 | free(rule->ofpacts); | |
884e1dc4 EJ |
5538 | |
5539 | ovs_rwlock_wrlock(&rule->rwlock); | |
08043761 BP |
5540 | rule->ofpacts = op->ofpacts; |
5541 | rule->ofpacts_len = op->ofpacts_len; | |
884e1dc4 EJ |
5542 | ovs_rwlock_unlock(&rule->rwlock); |
5543 | ||
08043761 BP |
5544 | op->ofpacts = NULL; |
5545 | op->ofpacts_len = 0; | |
5546 | } | |
b277c7cc | 5547 | rule->send_flow_removed = op->send_flow_removed; |
e615b0a3 BP |
5548 | } |
5549 | break; | |
5550 | ||
5551 | default: | |
5552 | NOT_REACHED(); | |
5553 | } | |
5554 | ||
5555 | ofoperation_destroy(op); | |
5556 | } | |
5557 | ||
2b07c8b1 BP |
5558 | ofmonitor_flush(ofproto->connmgr); |
5559 | ||
7ee20df1 | 5560 | if (!list_is_empty(&group->ofproto_node)) { |
cb22974d | 5561 | ovs_assert(ofproto->n_pending > 0); |
e615b0a3 | 5562 | ofproto->n_pending--; |
7ee20df1 BP |
5563 | list_remove(&group->ofproto_node); |
5564 | } | |
5565 | if (!list_is_empty(&group->ofconn_node)) { | |
5566 | list_remove(&group->ofconn_node); | |
e615b0a3 BP |
5567 | if (error) { |
5568 | ofconn_send_error(group->ofconn, group->request, error); | |
7ee20df1 | 5569 | } |
e615b0a3 | 5570 | connmgr_retry(ofproto->connmgr); |
7ee20df1 BP |
5571 | } |
5572 | free(group->request); | |
5573 | free(group); | |
5574 | } | |
5575 | ||
5576 | /* Initiates a new operation on 'rule', of the specified 'type', within | |
a7d94793 BP |
5577 | * 'group'. Prior to calling, 'rule' must not have any pending operation. |
5578 | * | |
2b07c8b1 BP |
5579 | * For a 'type' of OFOPERATION_DELETE, 'reason' should specify the reason that |
5580 | * the flow is being deleted. For other 'type's, 'reason' is ignored (use 0). | |
5581 | * | |
a7d94793 BP |
5582 | * Returns the newly created ofoperation (which is also available as |
5583 | * rule->pending). */ | |
5584 | static struct ofoperation * | |
7ee20df1 | 5585 | ofoperation_create(struct ofopgroup *group, struct rule *rule, |
2b07c8b1 BP |
5586 | enum ofoperation_type type, |
5587 | enum ofp_flow_removed_reason reason) | |
7ee20df1 | 5588 | { |
a5b8d268 | 5589 | struct ofproto *ofproto = group->ofproto; |
7ee20df1 BP |
5590 | struct ofoperation *op; |
5591 | ||
cb22974d | 5592 | ovs_assert(!rule->pending); |
7ee20df1 BP |
5593 | |
5594 | op = rule->pending = xzalloc(sizeof *op); | |
5595 | op->group = group; | |
5596 | list_push_back(&group->ops, &op->group_node); | |
5597 | op->rule = rule; | |
5598 | op->type = type; | |
2b07c8b1 | 5599 | op->reason = reason; |
7ee20df1 | 5600 | op->flow_cookie = rule->flow_cookie; |
b277c7cc BP |
5601 | ovs_mutex_lock(&rule->timeout_mutex); |
5602 | op->idle_timeout = rule->idle_timeout; | |
5603 | op->hard_timeout = rule->hard_timeout; | |
5604 | ovs_mutex_unlock(&rule->timeout_mutex); | |
5605 | op->send_flow_removed = rule->send_flow_removed; | |
7ee20df1 | 5606 | |
e615b0a3 BP |
5607 | group->n_running++; |
5608 | ||
7ee20df1 | 5609 | if (type == OFOPERATION_DELETE) { |
a5b8d268 | 5610 | hmap_insert(&ofproto->deletions, &op->hmap_node, |
7ee20df1 BP |
5611 | cls_rule_hash(&rule->cr, rule->table_id)); |
5612 | } | |
a7d94793 BP |
5613 | |
5614 | return op; | |
7ee20df1 BP |
5615 | } |
5616 | ||
5617 | static void | |
5618 | ofoperation_destroy(struct ofoperation *op) | |
5619 | { | |
5620 | struct ofopgroup *group = op->group; | |
5621 | ||
5622 | if (op->rule) { | |
5623 | op->rule->pending = NULL; | |
5624 | } | |
5625 | if (op->type == OFOPERATION_DELETE) { | |
5626 | hmap_remove(&group->ofproto->deletions, &op->hmap_node); | |
5627 | } | |
5628 | list_remove(&op->group_node); | |
f25d0cf3 | 5629 | free(op->ofpacts); |
7ee20df1 | 5630 | free(op); |
7ee20df1 BP |
5631 | } |
5632 | ||
5633 | /* Indicates that 'op' completed with status 'error', which is either 0 to | |
90bf1e07 | 5634 | * indicate success or an OpenFlow error code on failure. |
7ee20df1 | 5635 | * |
a6a62132 | 5636 | * If 'error' is 0, indicating success, the operation will be committed |
b277c7cc | 5637 | * permanently to the flow table. |
a6a62132 BP |
5638 | * |
5639 | * If 'error' is nonzero, then generally the operation will be rolled back: | |
5640 | * | |
5641 | * - If 'op' is an "add flow" operation, ofproto removes the new rule or | |
5642 | * restores the original rule. The caller must have uninitialized any | |
5643 | * derived state in the new rule, as in step 5 of in the "Life Cycle" in | |
5644 | * ofproto/ofproto-provider.h. ofoperation_complete() performs steps 6 and | |
5645 | * and 7 for the new rule, calling its ->rule_dealloc() function. | |
5646 | * | |
5647 | * - If 'op' is a "modify flow" operation, ofproto restores the original | |
5648 | * actions. | |
5649 | * | |
5650 | * - 'op' must not be a "delete flow" operation. Removing a rule is not | |
5651 | * allowed to fail. It must always succeed. | |
7ee20df1 | 5652 | * |
5bee6e26 JP |
5653 | * Please see the large comment in ofproto/ofproto-provider.h titled |
5654 | * "Asynchronous Operation Support" for more information. */ | |
7ee20df1 | 5655 | void |
90bf1e07 | 5656 | ofoperation_complete(struct ofoperation *op, enum ofperr error) |
7ee20df1 BP |
5657 | { |
5658 | struct ofopgroup *group = op->group; | |
7ee20df1 | 5659 | |
cb22974d BP |
5660 | ovs_assert(op->rule->pending == op); |
5661 | ovs_assert(group->n_running > 0); | |
5662 | ovs_assert(!error || op->type != OFOPERATION_DELETE); | |
9075907c | 5663 | |
e615b0a3 BP |
5664 | op->error = error; |
5665 | if (!--group->n_running && !list_is_empty(&group->ofproto_node)) { | |
5666 | ofopgroup_complete(group); | |
7ee20df1 | 5667 | } |
7ee20df1 | 5668 | } |
064af421 | 5669 | \f |
064af421 | 5670 | static uint64_t |
fa60c019 | 5671 | pick_datapath_id(const struct ofproto *ofproto) |
064af421 | 5672 | { |
fa60c019 | 5673 | const struct ofport *port; |
064af421 | 5674 | |
abe529af | 5675 | port = ofproto_get_port(ofproto, OFPP_LOCAL); |
fa60c019 BP |
5676 | if (port) { |
5677 | uint8_t ea[ETH_ADDR_LEN]; | |
5678 | int error; | |
5679 | ||
5680 | error = netdev_get_etheraddr(port->netdev, ea); | |
064af421 BP |
5681 | if (!error) { |
5682 | return eth_addr_to_uint64(ea); | |
5683 | } | |
fbfa2911 BP |
5684 | VLOG_WARN("%s: could not get MAC address for %s (%s)", |
5685 | ofproto->name, netdev_get_name(port->netdev), | |
10a89ef0 | 5686 | ovs_strerror(error)); |
064af421 | 5687 | } |
fa60c019 | 5688 | return ofproto->fallback_dpid; |
064af421 BP |
5689 | } |
5690 | ||
5691 | static uint64_t | |
5692 | pick_fallback_dpid(void) | |
5693 | { | |
5694 | uint8_t ea[ETH_ADDR_LEN]; | |
70150daf | 5695 | eth_addr_nicira_random(ea); |
064af421 BP |
5696 | return eth_addr_to_uint64(ea); |
5697 | } | |
5698 | \f | |
254750ce BP |
5699 | /* Table overflow policy. */ |
5700 | ||
ad3efdcb EJ |
5701 | /* Chooses and updates 'rulep' with a rule to evict from 'table'. Sets 'rulep' |
5702 | * to NULL if the table is not configured to evict rules or if the table | |
5703 | * contains no evictable rules. (Rules with a readlock on their evict rwlock, | |
5704 | * or with no timeouts are not evictable.) */ | |
5705 | static bool | |
5706 | choose_rule_to_evict(struct oftable *table, struct rule **rulep) | |
254750ce BP |
5707 | { |
5708 | struct eviction_group *evg; | |
5709 | ||
ad3efdcb | 5710 | *rulep = NULL; |
254750ce | 5711 | if (!table->eviction_fields) { |
ad3efdcb | 5712 | return false; |
254750ce BP |
5713 | } |
5714 | ||
5715 | /* In the common case, the outer and inner loops here will each be entered | |
5716 | * exactly once: | |
5717 | * | |
5718 | * - The inner loop normally "return"s in its first iteration. If the | |
5719 | * eviction group has any evictable rules, then it always returns in | |
5720 | * some iteration. | |
5721 | * | |
5722 | * - The outer loop only iterates more than once if the largest eviction | |
5723 | * group has no evictable rules. | |
5724 | * | |
5725 | * - The outer loop can exit only if table's 'max_flows' is all filled up | |
afe2143d | 5726 | * by unevictable rules. */ |
254750ce BP |
5727 | HEAP_FOR_EACH (evg, size_node, &table->eviction_groups_by_size) { |
5728 | struct rule *rule; | |
5729 | ||
5730 | HEAP_FOR_EACH (rule, evg_node, &evg->rules) { | |
884e1dc4 | 5731 | if (!ovs_rwlock_trywrlock(&rule->rwlock)) { |
ad3efdcb EJ |
5732 | *rulep = rule; |
5733 | return true; | |
254750ce BP |
5734 | } |
5735 | } | |
5736 | } | |
5737 | ||
ad3efdcb | 5738 | return false; |
254750ce BP |
5739 | } |
5740 | ||
5741 | /* Searches 'ofproto' for tables that have more flows than their configured | |
5742 | * maximum and that have flow eviction enabled, and evicts as many flows as | |
5743 | * necessary and currently feasible from them. | |
5744 | * | |
5745 | * This triggers only when an OpenFlow table has N flows in it and then the | |
5746 | * client configures a maximum number of flows less than N. */ | |
5747 | static void | |
5748 | ofproto_evict(struct ofproto *ofproto) | |
5749 | { | |
5750 | struct ofopgroup *group; | |
5751 | struct oftable *table; | |
5752 | ||
5753 | group = ofopgroup_create_unattached(ofproto); | |
5754 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { | |
0b4f2078 | 5755 | while (table->eviction_fields) { |
254750ce | 5756 | struct rule *rule; |
0b4f2078 EJ |
5757 | size_t n_rules; |
5758 | ||
5759 | ovs_rwlock_rdlock(&table->cls.rwlock); | |
5760 | n_rules = classifier_count(&table->cls); | |
5761 | ovs_rwlock_unlock(&table->cls.rwlock); | |
5762 | ||
5763 | if (n_rules <= table->max_flows) { | |
5764 | break; | |
5765 | } | |
254750ce | 5766 | |
ad3efdcb EJ |
5767 | if (!choose_rule_to_evict(table, &rule)) { |
5768 | break; | |
5769 | } | |
5770 | ||
5771 | if (rule->pending) { | |
884e1dc4 | 5772 | ovs_rwlock_unlock(&rule->rwlock); |
254750ce BP |
5773 | break; |
5774 | } | |
5775 | ||
2b07c8b1 BP |
5776 | ofoperation_create(group, rule, |
5777 | OFOPERATION_DELETE, OFPRR_EVICTION); | |
254750ce | 5778 | oftable_remove_rule(rule); |
8037acb4 | 5779 | ofproto->ofproto_class->rule_delete(rule); |
254750ce BP |
5780 | } |
5781 | } | |
5782 | ofopgroup_submit(group); | |
5783 | } | |
5784 | \f | |
5785 | /* Eviction groups. */ | |
5786 | ||
5787 | /* Returns the priority to use for an eviction_group that contains 'n_rules' | |
5788 | * rules. The priority contains low-order random bits to ensure that eviction | |
5789 | * groups with the same number of rules are prioritized randomly. */ | |
5790 | static uint32_t | |
5791 | eviction_group_priority(size_t n_rules) | |
5792 | { | |
5793 | uint16_t size = MIN(UINT16_MAX, n_rules); | |
5794 | return (size << 16) | random_uint16(); | |
5795 | } | |
5796 | ||
5797 | /* Updates 'evg', an eviction_group within 'table', following a change that | |
5798 | * adds or removes rules in 'evg'. */ | |
5799 | static void | |
5800 | eviction_group_resized(struct oftable *table, struct eviction_group *evg) | |
5801 | { | |
5802 | heap_change(&table->eviction_groups_by_size, &evg->size_node, | |
5803 | eviction_group_priority(heap_count(&evg->rules))); | |
5804 | } | |
5805 | ||
5806 | /* Destroys 'evg', an eviction_group within 'table': | |
5807 | * | |
5808 | * - Removes all the rules, if any, from 'evg'. (It doesn't destroy the | |
5809 | * rules themselves, just removes them from the eviction group.) | |
5810 | * | |
5811 | * - Removes 'evg' from 'table'. | |
5812 | * | |
5813 | * - Frees 'evg'. */ | |
5814 | static void | |
5815 | eviction_group_destroy(struct oftable *table, struct eviction_group *evg) | |
5816 | { | |
5817 | while (!heap_is_empty(&evg->rules)) { | |
5818 | struct rule *rule; | |
5819 | ||
5820 | rule = CONTAINER_OF(heap_pop(&evg->rules), struct rule, evg_node); | |
5821 | rule->eviction_group = NULL; | |
5822 | } | |
5823 | hmap_remove(&table->eviction_groups_by_id, &evg->id_node); | |
5824 | heap_remove(&table->eviction_groups_by_size, &evg->size_node); | |
5825 | heap_destroy(&evg->rules); | |
5826 | free(evg); | |
5827 | } | |
5828 | ||
5829 | /* Removes 'rule' from its eviction group, if any. */ | |
5830 | static void | |
5831 | eviction_group_remove_rule(struct rule *rule) | |
5832 | { | |
5833 | if (rule->eviction_group) { | |
5834 | struct oftable *table = &rule->ofproto->tables[rule->table_id]; | |
5835 | struct eviction_group *evg = rule->eviction_group; | |
5836 | ||
5837 | rule->eviction_group = NULL; | |
5838 | heap_remove(&evg->rules, &rule->evg_node); | |
5839 | if (heap_is_empty(&evg->rules)) { | |
5840 | eviction_group_destroy(table, evg); | |
5841 | } else { | |
5842 | eviction_group_resized(table, evg); | |
5843 | } | |
5844 | } | |
5845 | } | |
5846 | ||
5847 | /* Hashes the 'rule''s values for the eviction_fields of 'rule''s table, and | |
5848 | * returns the hash value. */ | |
5849 | static uint32_t | |
5850 | eviction_group_hash_rule(struct rule *rule) | |
5851 | { | |
5852 | struct oftable *table = &rule->ofproto->tables[rule->table_id]; | |
5853 | const struct mf_subfield *sf; | |
5cb7a798 | 5854 | struct flow flow; |
254750ce BP |
5855 | uint32_t hash; |
5856 | ||
5857 | hash = table->eviction_group_id_basis; | |
5cb7a798 | 5858 | miniflow_expand(&rule->cr.match.flow, &flow); |
254750ce BP |
5859 | for (sf = table->eviction_fields; |
5860 | sf < &table->eviction_fields[table->n_eviction_fields]; | |
5861 | sf++) | |
5862 | { | |
5cb7a798 | 5863 | if (mf_are_prereqs_ok(sf->field, &flow)) { |
254750ce BP |
5864 | union mf_value value; |
5865 | ||
5cb7a798 | 5866 | mf_get_value(sf->field, &flow, &value); |
254750ce BP |
5867 | if (sf->ofs) { |
5868 | bitwise_zero(&value, sf->field->n_bytes, 0, sf->ofs); | |
5869 | } | |
5870 | if (sf->ofs + sf->n_bits < sf->field->n_bytes * 8) { | |
5871 | unsigned int start = sf->ofs + sf->n_bits; | |
5872 | bitwise_zero(&value, sf->field->n_bytes, start, | |
5873 | sf->field->n_bytes * 8 - start); | |
5874 | } | |
5875 | hash = hash_bytes(&value, sf->field->n_bytes, hash); | |
5876 | } else { | |
5877 | hash = hash_int(hash, 0); | |
5878 | } | |
5879 | } | |
5880 | ||
5881 | return hash; | |
5882 | } | |
5883 | ||
5884 | /* Returns an eviction group within 'table' with the given 'id', creating one | |
5885 | * if necessary. */ | |
5886 | static struct eviction_group * | |
5887 | eviction_group_find(struct oftable *table, uint32_t id) | |
5888 | { | |
5889 | struct eviction_group *evg; | |
5890 | ||
5891 | HMAP_FOR_EACH_WITH_HASH (evg, id_node, id, &table->eviction_groups_by_id) { | |
5892 | return evg; | |
5893 | } | |
5894 | ||
5895 | evg = xmalloc(sizeof *evg); | |
5896 | hmap_insert(&table->eviction_groups_by_id, &evg->id_node, id); | |
5897 | heap_insert(&table->eviction_groups_by_size, &evg->size_node, | |
5898 | eviction_group_priority(0)); | |
5899 | heap_init(&evg->rules); | |
5900 | ||
5901 | return evg; | |
5902 | } | |
5903 | ||
5904 | /* Returns an eviction priority for 'rule'. The return value should be | |
5905 | * interpreted so that higher priorities make a rule more attractive candidates | |
5906 | * for eviction. */ | |
5907 | static uint32_t | |
5908 | rule_eviction_priority(struct rule *rule) | |
5909 | { | |
5910 | long long int hard_expiration; | |
5911 | long long int idle_expiration; | |
5912 | long long int expiration; | |
5913 | uint32_t expiration_offset; | |
5914 | ||
5915 | /* Calculate time of expiration. */ | |
a3779dbc | 5916 | ovs_mutex_lock(&rule->timeout_mutex); |
254750ce BP |
5917 | hard_expiration = (rule->hard_timeout |
5918 | ? rule->modified + rule->hard_timeout * 1000 | |
5919 | : LLONG_MAX); | |
5920 | idle_expiration = (rule->idle_timeout | |
5921 | ? rule->used + rule->idle_timeout * 1000 | |
5922 | : LLONG_MAX); | |
5923 | expiration = MIN(hard_expiration, idle_expiration); | |
a3779dbc | 5924 | ovs_mutex_unlock(&rule->timeout_mutex); |
254750ce BP |
5925 | if (expiration == LLONG_MAX) { |
5926 | return 0; | |
5927 | } | |
5928 | ||
5929 | /* Calculate the time of expiration as a number of (approximate) seconds | |
5930 | * after program startup. | |
5931 | * | |
5932 | * This should work OK for program runs that last UINT32_MAX seconds or | |
5933 | * less. Therefore, please restart OVS at least once every 136 years. */ | |
5934 | expiration_offset = (expiration >> 10) - (time_boot_msec() >> 10); | |
5935 | ||
5936 | /* Invert the expiration offset because we're using a max-heap. */ | |
5937 | return UINT32_MAX - expiration_offset; | |
5938 | } | |
5939 | ||
5940 | /* Adds 'rule' to an appropriate eviction group for its oftable's | |
5941 | * configuration. Does nothing if 'rule''s oftable doesn't have eviction | |
5942 | * enabled, or if 'rule' is a permanent rule (one that will never expire on its | |
5943 | * own). | |
5944 | * | |
5945 | * The caller must ensure that 'rule' is not already in an eviction group. */ | |
5946 | static void | |
5947 | eviction_group_add_rule(struct rule *rule) | |
5948 | { | |
5949 | struct ofproto *ofproto = rule->ofproto; | |
5950 | struct oftable *table = &ofproto->tables[rule->table_id]; | |
a3779dbc | 5951 | bool has_timeout; |
254750ce | 5952 | |
a3779dbc EJ |
5953 | ovs_mutex_lock(&rule->timeout_mutex); |
5954 | has_timeout = rule->hard_timeout || rule->idle_timeout; | |
5955 | ovs_mutex_unlock(&rule->timeout_mutex); | |
5956 | ||
5957 | if (table->eviction_fields && has_timeout) { | |
254750ce BP |
5958 | struct eviction_group *evg; |
5959 | ||
5960 | evg = eviction_group_find(table, eviction_group_hash_rule(rule)); | |
5961 | ||
5962 | rule->eviction_group = evg; | |
5963 | heap_insert(&evg->rules, &rule->evg_node, | |
5964 | rule_eviction_priority(rule)); | |
5965 | eviction_group_resized(table, evg); | |
5966 | } | |
5967 | } | |
5968 | \f | |
d0918789 BP |
5969 | /* oftables. */ |
5970 | ||
5971 | /* Initializes 'table'. */ | |
5972 | static void | |
5973 | oftable_init(struct oftable *table) | |
5974 | { | |
5c67e4af | 5975 | memset(table, 0, sizeof *table); |
d0918789 | 5976 | classifier_init(&table->cls); |
ec1c5c7e | 5977 | table->max_flows = UINT_MAX; |
d0918789 BP |
5978 | } |
5979 | ||
254750ce | 5980 | /* Destroys 'table', including its classifier and eviction groups. |
d0918789 BP |
5981 | * |
5982 | * The caller is responsible for freeing 'table' itself. */ | |
5983 | static void | |
5984 | oftable_destroy(struct oftable *table) | |
5985 | { | |
0b4f2078 | 5986 | ovs_rwlock_rdlock(&table->cls.rwlock); |
cb22974d | 5987 | ovs_assert(classifier_is_empty(&table->cls)); |
0b4f2078 | 5988 | ovs_rwlock_unlock(&table->cls.rwlock); |
254750ce | 5989 | oftable_disable_eviction(table); |
d0918789 | 5990 | classifier_destroy(&table->cls); |
254750ce BP |
5991 | free(table->name); |
5992 | } | |
5993 | ||
5994 | /* Changes the name of 'table' to 'name'. If 'name' is NULL or the empty | |
5995 | * string, then 'table' will use its default name. | |
5996 | * | |
5997 | * This only affects the name exposed for a table exposed through the OpenFlow | |
5998 | * OFPST_TABLE (as printed by "ovs-ofctl dump-tables"). */ | |
5999 | static void | |
6000 | oftable_set_name(struct oftable *table, const char *name) | |
6001 | { | |
6002 | if (name && name[0]) { | |
6003 | int len = strnlen(name, OFP_MAX_TABLE_NAME_LEN); | |
6004 | if (!table->name || strncmp(name, table->name, len)) { | |
6005 | free(table->name); | |
6006 | table->name = xmemdup0(name, len); | |
6007 | } | |
6008 | } else { | |
6009 | free(table->name); | |
6010 | table->name = NULL; | |
6011 | } | |
6012 | } | |
6013 | ||
6014 | /* oftables support a choice of two policies when adding a rule would cause the | |
6015 | * number of flows in the table to exceed the configured maximum number: either | |
6016 | * they can refuse to add the new flow or they can evict some existing flow. | |
6017 | * This function configures the former policy on 'table'. */ | |
6018 | static void | |
6019 | oftable_disable_eviction(struct oftable *table) | |
6020 | { | |
6021 | if (table->eviction_fields) { | |
6022 | struct eviction_group *evg, *next; | |
6023 | ||
6024 | HMAP_FOR_EACH_SAFE (evg, next, id_node, | |
6025 | &table->eviction_groups_by_id) { | |
6026 | eviction_group_destroy(table, evg); | |
6027 | } | |
6028 | hmap_destroy(&table->eviction_groups_by_id); | |
6029 | heap_destroy(&table->eviction_groups_by_size); | |
6030 | ||
6031 | free(table->eviction_fields); | |
6032 | table->eviction_fields = NULL; | |
6033 | table->n_eviction_fields = 0; | |
6034 | } | |
6035 | } | |
6036 | ||
6037 | /* oftables support a choice of two policies when adding a rule would cause the | |
6038 | * number of flows in the table to exceed the configured maximum number: either | |
6039 | * they can refuse to add the new flow or they can evict some existing flow. | |
6040 | * This function configures the latter policy on 'table', with fairness based | |
6041 | * on the values of the 'n_fields' fields specified in 'fields'. (Specifying | |
6042 | * 'n_fields' as 0 disables fairness.) */ | |
6043 | static void | |
6044 | oftable_enable_eviction(struct oftable *table, | |
6045 | const struct mf_subfield *fields, size_t n_fields) | |
6046 | { | |
6047 | struct cls_cursor cursor; | |
6048 | struct rule *rule; | |
6049 | ||
6050 | if (table->eviction_fields | |
6051 | && n_fields == table->n_eviction_fields | |
6052 | && (!n_fields | |
6053 | || !memcmp(fields, table->eviction_fields, | |
6054 | n_fields * sizeof *fields))) { | |
6055 | /* No change. */ | |
6056 | return; | |
6057 | } | |
6058 | ||
6059 | oftable_disable_eviction(table); | |
6060 | ||
6061 | table->n_eviction_fields = n_fields; | |
6062 | table->eviction_fields = xmemdup(fields, n_fields * sizeof *fields); | |
6063 | ||
6064 | table->eviction_group_id_basis = random_uint32(); | |
6065 | hmap_init(&table->eviction_groups_by_id); | |
6066 | heap_init(&table->eviction_groups_by_size); | |
6067 | ||
0b4f2078 | 6068 | ovs_rwlock_rdlock(&table->cls.rwlock); |
254750ce BP |
6069 | cls_cursor_init(&cursor, &table->cls, NULL); |
6070 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { | |
6071 | eviction_group_add_rule(rule); | |
6072 | } | |
0b4f2078 | 6073 | ovs_rwlock_unlock(&table->cls.rwlock); |
d0918789 BP |
6074 | } |
6075 | ||
6076 | /* Removes 'rule' from the oftable that contains it. */ | |
6077 | static void | |
0b4f2078 | 6078 | oftable_remove_rule__(struct ofproto *ofproto, struct classifier *cls, |
47b52c71 | 6079 | struct rule *rule) |
884e1dc4 | 6080 | OVS_REQ_WRLOCK(cls->rwlock) OVS_RELEASES(rule->rwlock) |
d0918789 | 6081 | { |
0b4f2078 | 6082 | classifier_remove(cls, &rule->cr); |
98eaac36 | 6083 | cookies_remove(ofproto, rule); |
254750ce | 6084 | eviction_group_remove_rule(rule); |
83b16b98 | 6085 | ovs_mutex_lock(&ofproto->expirable_mutex); |
e503cc19 SH |
6086 | if (!list_is_empty(&rule->expirable)) { |
6087 | list_remove(&rule->expirable); | |
6088 | } | |
83b16b98 | 6089 | ovs_mutex_unlock(&ofproto->expirable_mutex); |
9cae45dc JR |
6090 | if (!list_is_empty(&rule->meter_list_node)) { |
6091 | list_remove(&rule->meter_list_node); | |
51b50dfd | 6092 | list_init(&rule->meter_list_node); |
9cae45dc | 6093 | } |
884e1dc4 | 6094 | ovs_rwlock_unlock(&rule->rwlock); |
d0918789 BP |
6095 | } |
6096 | ||
0b4f2078 EJ |
6097 | static void |
6098 | oftable_remove_rule(struct rule *rule) | |
6099 | { | |
6100 | struct ofproto *ofproto = rule->ofproto; | |
6101 | struct oftable *table = &ofproto->tables[rule->table_id]; | |
6102 | ||
6103 | ovs_rwlock_wrlock(&table->cls.rwlock); | |
6104 | oftable_remove_rule__(ofproto, &table->cls, rule); | |
6105 | ovs_rwlock_unlock(&table->cls.rwlock); | |
6106 | } | |
6107 | ||
b277c7cc BP |
6108 | /* Inserts 'rule' into its oftable, which must not already contain any rule for |
6109 | * the same cls_rule. */ | |
6110 | static void | |
6111 | oftable_insert_rule(struct rule *rule) | |
d0918789 BP |
6112 | { |
6113 | struct ofproto *ofproto = rule->ofproto; | |
6114 | struct oftable *table = &ofproto->tables[rule->table_id]; | |
a3779dbc EJ |
6115 | bool may_expire; |
6116 | ||
6117 | ovs_mutex_lock(&rule->timeout_mutex); | |
6118 | may_expire = rule->hard_timeout || rule->idle_timeout; | |
6119 | ovs_mutex_unlock(&rule->timeout_mutex); | |
e503cc19 SH |
6120 | |
6121 | if (may_expire) { | |
83b16b98 | 6122 | ovs_mutex_lock(&ofproto->expirable_mutex); |
e503cc19 | 6123 | list_insert(&ofproto->expirable, &rule->expirable); |
83b16b98 | 6124 | ovs_mutex_unlock(&ofproto->expirable_mutex); |
e503cc19 | 6125 | } |
98eaac36 | 6126 | cookies_insert(ofproto, rule); |
9cae45dc JR |
6127 | if (rule->meter_id) { |
6128 | struct meter *meter = ofproto->meters[rule->meter_id]; | |
6129 | list_insert(&meter->rules, &rule->meter_list_node); | |
6130 | } | |
0b4f2078 | 6131 | ovs_rwlock_wrlock(&table->cls.rwlock); |
b277c7cc | 6132 | classifier_insert(&table->cls, &rule->cr); |
0b4f2078 | 6133 | ovs_rwlock_unlock(&table->cls.rwlock); |
254750ce | 6134 | eviction_group_add_rule(rule); |
d0918789 BP |
6135 | } |
6136 | \f | |
abe529af | 6137 | /* unixctl commands. */ |
7aa697dd | 6138 | |
abe529af | 6139 | struct ofproto * |
2ac6bedd | 6140 | ofproto_lookup(const char *name) |
7aa697dd | 6141 | { |
2ac6bedd | 6142 | struct ofproto *ofproto; |
7aa697dd | 6143 | |
2ac6bedd BP |
6144 | HMAP_FOR_EACH_WITH_HASH (ofproto, hmap_node, hash_string(name, 0), |
6145 | &all_ofprotos) { | |
6146 | if (!strcmp(ofproto->name, name)) { | |
6147 | return ofproto; | |
6148 | } | |
7aa697dd | 6149 | } |
2ac6bedd | 6150 | return NULL; |
7aa697dd BP |
6151 | } |
6152 | ||
6153 | static void | |
0e15264f BP |
6154 | ofproto_unixctl_list(struct unixctl_conn *conn, int argc OVS_UNUSED, |
6155 | const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED) | |
7aa697dd | 6156 | { |
7aa697dd | 6157 | struct ofproto *ofproto; |
7aa697dd | 6158 | struct ds results; |
7aa697dd | 6159 | |
7aa697dd | 6160 | ds_init(&results); |
2ac6bedd BP |
6161 | HMAP_FOR_EACH (ofproto, hmap_node, &all_ofprotos) { |
6162 | ds_put_format(&results, "%s\n", ofproto->name); | |
7aa697dd | 6163 | } |
bde9f75d | 6164 | unixctl_command_reply(conn, ds_cstr(&results)); |
7aa697dd | 6165 | ds_destroy(&results); |
7aa697dd BP |
6166 | } |
6167 | ||
6168 | static void | |
6169 | ofproto_unixctl_init(void) | |
6170 | { | |
6171 | static bool registered; | |
6172 | if (registered) { | |
6173 | return; | |
6174 | } | |
6175 | registered = true; | |
6176 | ||
0e15264f BP |
6177 | unixctl_command_register("ofproto/list", "", 0, 0, |
6178 | ofproto_unixctl_list, NULL); | |
064af421 | 6179 | } |
52a90c29 BP |
6180 | \f |
6181 | /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.) | |
6182 | * | |
6183 | * This is deprecated. It is only for compatibility with broken device drivers | |
6184 | * in old versions of Linux that do not properly support VLANs when VLAN | |
6185 | * devices are not used. When broken device drivers are no longer in | |
6186 | * widespread use, we will delete these interfaces. */ | |
6187 | ||
6188 | /* Sets a 1-bit in the 4096-bit 'vlan_bitmap' for each VLAN ID that is matched | |
6189 | * (exactly) by an OpenFlow rule in 'ofproto'. */ | |
6190 | void | |
6191 | ofproto_get_vlan_usage(struct ofproto *ofproto, unsigned long int *vlan_bitmap) | |
6192 | { | |
d0918789 | 6193 | const struct oftable *oftable; |
52a90c29 BP |
6194 | |
6195 | free(ofproto->vlan_bitmap); | |
6196 | ofproto->vlan_bitmap = bitmap_allocate(4096); | |
6197 | ofproto->vlans_changed = false; | |
6198 | ||
d0918789 | 6199 | OFPROTO_FOR_EACH_TABLE (oftable, ofproto) { |
52a90c29 BP |
6200 | const struct cls_table *table; |
6201 | ||
d0918789 | 6202 | HMAP_FOR_EACH (table, hmap_node, &oftable->cls.tables) { |
5cb7a798 | 6203 | if (minimask_get_vid_mask(&table->mask) == VLAN_VID_MASK) { |
52a90c29 BP |
6204 | const struct cls_rule *rule; |
6205 | ||
6206 | HMAP_FOR_EACH (rule, hmap_node, &table->rules) { | |
5cb7a798 | 6207 | uint16_t vid = miniflow_get_vid(&rule->match.flow); |
52a90c29 BP |
6208 | bitmap_set1(vlan_bitmap, vid); |
6209 | bitmap_set1(ofproto->vlan_bitmap, vid); | |
6210 | } | |
6211 | } | |
6212 | } | |
6213 | } | |
6214 | } | |
6215 | ||
6216 | /* Returns true if new VLANs have come into use by the flow table since the | |
6217 | * last call to ofproto_get_vlan_usage(). | |
6218 | * | |
6219 | * We don't track when old VLANs stop being used. */ | |
6220 | bool | |
6221 | ofproto_has_vlan_usage_changed(const struct ofproto *ofproto) | |
6222 | { | |
6223 | return ofproto->vlans_changed; | |
6224 | } | |
6225 | ||
6226 | /* Configures a VLAN splinter binding between the ports identified by OpenFlow | |
6227 | * port numbers 'vlandev_ofp_port' and 'realdev_ofp_port'. If | |
6228 | * 'realdev_ofp_port' is nonzero, then the VLAN device is enslaved to the real | |
6229 | * device as a VLAN splinter for VLAN ID 'vid'. If 'realdev_ofp_port' is zero, | |
6230 | * then the VLAN device is un-enslaved. */ | |
6231 | int | |
4e022ec0 AW |
6232 | ofproto_port_set_realdev(struct ofproto *ofproto, ofp_port_t vlandev_ofp_port, |
6233 | ofp_port_t realdev_ofp_port, int vid) | |
52a90c29 BP |
6234 | { |
6235 | struct ofport *ofport; | |
6236 | int error; | |
6237 | ||
cb22974d | 6238 | ovs_assert(vlandev_ofp_port != realdev_ofp_port); |
52a90c29 BP |
6239 | |
6240 | ofport = ofproto_get_port(ofproto, vlandev_ofp_port); | |
6241 | if (!ofport) { | |
6242 | VLOG_WARN("%s: cannot set realdev on nonexistent port %"PRIu16, | |
6243 | ofproto->name, vlandev_ofp_port); | |
6244 | return EINVAL; | |
6245 | } | |
6246 | ||
6247 | if (!ofproto->ofproto_class->set_realdev) { | |
6248 | if (!vlandev_ofp_port) { | |
6249 | return 0; | |
6250 | } | |
6251 | VLOG_WARN("%s: vlan splinters not supported", ofproto->name); | |
6252 | return EOPNOTSUPP; | |
6253 | } | |
6254 | ||
6255 | error = ofproto->ofproto_class->set_realdev(ofport, realdev_ofp_port, vid); | |
6256 | if (error) { | |
6257 | VLOG_WARN("%s: setting realdev on port %"PRIu16" (%s) failed (%s)", | |
6258 | ofproto->name, vlandev_ofp_port, | |
10a89ef0 | 6259 | netdev_get_name(ofport->netdev), ovs_strerror(error)); |
52a90c29 BP |
6260 | } |
6261 | return error; | |
6262 | } |