]>
Commit | Line | Data |
---|---|---|
064af421 | 1 | /* |
c5f81b20 | 2 | * Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014 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" |
da4a6191 | 28 | #include "connectivity.h" |
19a87e36 | 29 | #include "connmgr.h" |
064af421 | 30 | #include "coverage.h" |
4f2cad2c | 31 | #include "dynamic-string.h" |
ca0f572c BP |
32 | #include "hash.h" |
33 | #include "hmap.h" | |
254750ce | 34 | #include "meta-flow.h" |
064af421 | 35 | #include "netdev.h" |
09246b99 | 36 | #include "nx-match.h" |
f25d0cf3 | 37 | #include "ofp-actions.h" |
90bf1e07 | 38 | #include "ofp-errors.h" |
982697a4 | 39 | #include "ofp-msgs.h" |
064af421 | 40 | #include "ofp-print.h" |
fa37b408 | 41 | #include "ofp-util.h" |
064af421 | 42 | #include "ofpbuf.h" |
5bee6e26 | 43 | #include "ofproto-provider.h" |
064af421 BP |
44 | #include "openflow/nicira-ext.h" |
45 | #include "openflow/openflow.h" | |
06a0f3e2 | 46 | #include "ovs-rcu.h" |
064af421 BP |
47 | #include "packets.h" |
48 | #include "pinsched.h" | |
49 | #include "pktbuf.h" | |
50 | #include "poll-loop.h" | |
254750ce | 51 | #include "random.h" |
da4a6191 | 52 | #include "seq.h" |
064af421 | 53 | #include "shash.h" |
0d085684 | 54 | #include "simap.h" |
e8f9a7bb | 55 | #include "smap.h" |
b3c01ed3 | 56 | #include "sset.h" |
064af421 | 57 | #include "timeval.h" |
c4617b3c | 58 | #include "unaligned.h" |
4f2cad2c | 59 | #include "unixctl.h" |
5136ce49 | 60 | #include "vlog.h" |
777af88d | 61 | #include "bundles.h" |
064af421 | 62 | |
d98e6007 | 63 | VLOG_DEFINE_THIS_MODULE(ofproto); |
064af421 | 64 | |
d76f09ea | 65 | COVERAGE_DEFINE(ofproto_flush); |
d76f09ea BP |
66 | COVERAGE_DEFINE(ofproto_packet_out); |
67 | COVERAGE_DEFINE(ofproto_queue_req); | |
68 | COVERAGE_DEFINE(ofproto_recv_openflow); | |
69 | COVERAGE_DEFINE(ofproto_reinit_ports); | |
d76f09ea BP |
70 | COVERAGE_DEFINE(ofproto_update_port); |
71 | ||
f017d986 JR |
72 | /* Default fields to use for prefix tries in each flow table, unless something |
73 | * else is configured. */ | |
74 | const enum mf_field_id default_prefix_fields[2] = | |
75 | { MFF_IPV4_DST, MFF_IPV4_SRC }; | |
76 | ||
d0918789 BP |
77 | /* oftable. */ |
78 | static void oftable_init(struct oftable *); | |
79 | static void oftable_destroy(struct oftable *); | |
878ae780 | 80 | |
254750ce BP |
81 | static void oftable_set_name(struct oftable *, const char *name); |
82 | ||
834fe5cb BP |
83 | static enum ofperr evict_rules_from_table(struct oftable *, |
84 | unsigned int extra_space) | |
85 | OVS_REQUIRES(ofproto_mutex); | |
254750ce BP |
86 | static void oftable_disable_eviction(struct oftable *); |
87 | static void oftable_enable_eviction(struct oftable *, | |
88 | const struct mf_subfield *fields, | |
89 | size_t n_fields); | |
90 | ||
15aaf599 | 91 | static void oftable_remove_rule(struct rule *rule) OVS_REQUIRES(ofproto_mutex); |
8b81d1ef | 92 | static void oftable_remove_rule__(struct ofproto *, struct rule *) |
15aaf599 | 93 | OVS_REQUIRES(ofproto_mutex); |
064af421 | 94 | |
254750ce BP |
95 | /* A set of rules within a single OpenFlow table (oftable) that have the same |
96 | * values for the oftable's eviction_fields. A rule to be evicted, when one is | |
97 | * needed, is taken from the eviction group that contains the greatest number | |
98 | * of rules. | |
99 | * | |
100 | * An oftable owns any number of eviction groups, each of which contains any | |
101 | * number of rules. | |
102 | * | |
103 | * Membership in an eviction group is imprecise, based on the hash of the | |
104 | * oftable's eviction_fields (in the eviction_group's id_node.hash member). | |
105 | * That is, if two rules have different eviction_fields, but those | |
106 | * eviction_fields hash to the same value, then they will belong to the same | |
107 | * eviction_group anyway. | |
108 | * | |
109 | * (When eviction is not enabled on an oftable, we don't track any eviction | |
110 | * groups, to save time and space.) */ | |
111 | struct eviction_group { | |
112 | struct hmap_node id_node; /* In oftable's "eviction_groups_by_id". */ | |
113 | struct heap_node size_node; /* In oftable's "eviction_groups_by_size". */ | |
114 | struct heap rules; /* Contains "struct rule"s. */ | |
115 | }; | |
116 | ||
3d900aa7 BP |
117 | static bool choose_rule_to_evict(struct oftable *table, struct rule **rulep) |
118 | OVS_REQUIRES(ofproto_mutex); | |
3d900aa7 BP |
119 | static uint32_t rule_eviction_priority(struct ofproto *ofproto, struct rule *) |
120 | OVS_REQUIRES(ofproto_mutex);; | |
121 | static void eviction_group_add_rule(struct rule *) | |
122 | OVS_REQUIRES(ofproto_mutex); | |
123 | static void eviction_group_remove_rule(struct rule *) | |
124 | OVS_REQUIRES(ofproto_mutex); | |
f29152ca | 125 | |
a9b22b7f BP |
126 | /* Criteria that flow_mod and other operations use for selecting rules on |
127 | * which to operate. */ | |
128 | struct rule_criteria { | |
129 | /* An OpenFlow table or 255 for all tables. */ | |
130 | uint8_t table_id; | |
131 | ||
132 | /* OpenFlow matching criteria. Interpreted different in "loose" way by | |
133 | * collect_rules_loose() and "strict" way by collect_rules_strict(), as | |
134 | * defined in the OpenFlow spec. */ | |
135 | struct cls_rule cr; | |
136 | ||
137 | /* Matching criteria for the OpenFlow cookie. Consider a bit B in a rule's | |
138 | * cookie and the corresponding bits C in 'cookie' and M in 'cookie_mask'. | |
139 | * The rule will not be selected if M is 1 and B != C. */ | |
140 | ovs_be64 cookie; | |
141 | ovs_be64 cookie_mask; | |
142 | ||
143 | /* Selection based on actions within a rule: | |
144 | * | |
145 | * If out_port != OFPP_ANY, selects only rules that output to out_port. | |
146 | * If out_group != OFPG_ALL, select only rules that output to out_group. */ | |
147 | ofp_port_t out_port; | |
148 | uint32_t out_group; | |
dd51dae2 BP |
149 | |
150 | /* If true, collects only rules that are modifiable. */ | |
151 | bool include_hidden; | |
152 | bool include_readonly; | |
a9b22b7f BP |
153 | }; |
154 | ||
155 | static void rule_criteria_init(struct rule_criteria *, uint8_t table_id, | |
156 | const struct match *match, | |
157 | unsigned int priority, | |
158 | ovs_be64 cookie, ovs_be64 cookie_mask, | |
159 | ofp_port_t out_port, uint32_t out_group); | |
dd51dae2 BP |
160 | static void rule_criteria_require_rw(struct rule_criteria *, |
161 | bool can_write_readonly); | |
a9b22b7f BP |
162 | static void rule_criteria_destroy(struct rule_criteria *); |
163 | ||
35f48b8b BP |
164 | static enum ofperr collect_rules_loose(struct ofproto *, |
165 | const struct rule_criteria *, | |
166 | struct rule_collection *); | |
167 | ||
15aaf599 BP |
168 | /* A packet that needs to be passed to rule_execute(). |
169 | * | |
170 | * (We can't do this immediately from ofopgroup_complete() because that holds | |
171 | * ofproto_mutex, which rule_execute() needs released.) */ | |
35412852 BP |
172 | struct rule_execute { |
173 | struct list list_node; /* In struct ofproto's "rule_executes" list. */ | |
174 | struct rule *rule; /* Owns a reference to the rule. */ | |
175 | ofp_port_t in_port; | |
176 | struct ofpbuf *packet; /* Owns the packet. */ | |
177 | }; | |
178 | ||
15aaf599 | 179 | static void run_rule_executes(struct ofproto *) OVS_EXCLUDED(ofproto_mutex); |
35412852 BP |
180 | static void destroy_rule_executes(struct ofproto *); |
181 | ||
35f48b8b BP |
182 | struct learned_cookie { |
183 | union { | |
184 | /* In struct ofproto's 'learned_cookies' hmap. */ | |
185 | struct hmap_node hmap_node OVS_GUARDED_BY(ofproto_mutex); | |
186 | ||
187 | /* In 'dead_cookies' list when removed from hmap. */ | |
188 | struct list list_node; | |
189 | } u; | |
190 | ||
191 | /* Key. */ | |
192 | ovs_be64 cookie OVS_GUARDED_BY(ofproto_mutex); | |
193 | uint8_t table_id OVS_GUARDED_BY(ofproto_mutex); | |
194 | ||
195 | /* Number of references from "learn" actions. | |
196 | * | |
197 | * When this drops to 0, all of the flows in 'table_id' with the specified | |
198 | * 'cookie' are deleted. */ | |
199 | int n OVS_GUARDED_BY(ofproto_mutex); | |
200 | }; | |
201 | ||
202 | static const struct ofpact_learn *next_learn_with_delete( | |
203 | const struct rule_actions *, const struct ofpact_learn *start); | |
204 | ||
205 | static void learned_cookies_inc(struct ofproto *, const struct rule_actions *) | |
206 | OVS_REQUIRES(ofproto_mutex); | |
207 | static void learned_cookies_dec(struct ofproto *, const struct rule_actions *, | |
208 | struct list *dead_cookies) | |
209 | OVS_REQUIRES(ofproto_mutex); | |
210 | static void learned_cookies_flush(struct ofproto *, struct list *dead_cookies) | |
211 | OVS_REQUIRES(ofproto_mutex); | |
212 | ||
d0918789 | 213 | /* ofport. */ |
15aaf599 | 214 | static void ofport_destroy__(struct ofport *) OVS_EXCLUDED(ofproto_mutex); |
d0918789 BP |
215 | static void ofport_destroy(struct ofport *); |
216 | ||
217 | static void update_port(struct ofproto *, const char *devname); | |
218 | static int init_ports(struct ofproto *); | |
219 | static void reinit_ports(struct ofproto *); | |
7ee20df1 | 220 | |
fdcea803 GS |
221 | static long long int ofport_get_usage(const struct ofproto *, |
222 | ofp_port_t ofp_port); | |
223 | static void ofport_set_usage(struct ofproto *, ofp_port_t ofp_port, | |
224 | long long int last_used); | |
865b26a4 | 225 | static void ofport_remove_usage(struct ofproto *, ofp_port_t ofp_port); |
fdcea803 GS |
226 | |
227 | /* Ofport usage. | |
228 | * | |
229 | * Keeps track of the currently used and recently used ofport values and is | |
230 | * used to prevent immediate recycling of ofport values. */ | |
231 | struct ofport_usage { | |
232 | struct hmap_node hmap_node; /* In struct ofproto's "ofport_usage" hmap. */ | |
233 | ofp_port_t ofp_port; /* OpenFlow port number. */ | |
234 | long long int last_used; /* Last time the 'ofp_port' was used. LLONG_MAX | |
235 | represents in-use ofports. */ | |
236 | }; | |
237 | ||
254750ce | 238 | /* rule. */ |
254750ce | 239 | static void ofproto_rule_send_removed(struct rule *, uint8_t reason); |
834fe5cb | 240 | static bool rule_is_readonly(const struct rule *); |
254750ce | 241 | |
baae3d02 BP |
242 | /* The source of a flow_mod request, in the code that processes flow_mods. |
243 | * | |
244 | * A flow table modification request can be generated externally, via OpenFlow, | |
245 | * or internally through a function call. This structure indicates the source | |
246 | * of an OpenFlow-generated flow_mod. For an internal flow_mod, it isn't | |
247 | * meaningful and thus supplied as NULL. */ | |
248 | struct flow_mod_requester { | |
249 | struct ofconn *ofconn; /* Connection on which flow_mod arrived. */ | |
834fe5cb | 250 | ovs_be32 xid; /* OpenFlow xid of flow_mod request. */ |
baae3d02 BP |
251 | }; |
252 | ||
d0918789 | 253 | /* OpenFlow. */ |
baae3d02 BP |
254 | static enum ofperr add_flow(struct ofproto *, struct ofputil_flow_mod *, |
255 | const struct flow_mod_requester *); | |
256 | ||
257 | static enum ofperr modify_flows__(struct ofproto *, struct ofputil_flow_mod *, | |
258 | const struct rule_collection *, | |
259 | const struct flow_mod_requester *); | |
9ca4a86f BP |
260 | static void delete_flows__(const struct rule_collection *, |
261 | enum ofp_flow_removed_reason, | |
262 | const struct flow_mod_requester *) | |
15aaf599 | 263 | OVS_REQUIRES(ofproto_mutex); |
834fe5cb BP |
264 | |
265 | static enum ofperr send_buffered_packet(struct ofconn *, uint32_t buffer_id, | |
266 | struct rule *) | |
267 | OVS_REQUIRES(ofproto_mutex); | |
268 | ||
7e9f8266 BP |
269 | static bool ofproto_group_exists__(const struct ofproto *ofproto, |
270 | uint32_t group_id) | |
271 | OVS_REQ_RDLOCK(ofproto->groups_rwlock); | |
84d68566 SH |
272 | static bool ofproto_group_exists(const struct ofproto *ofproto, |
273 | uint32_t group_id) | |
7e9f8266 | 274 | OVS_EXCLUDED(ofproto->groups_rwlock); |
7395c052 | 275 | static enum ofperr add_group(struct ofproto *, struct ofputil_group_mod *); |
b20f4073 | 276 | static void handle_openflow(struct ofconn *, const struct ofpbuf *); |
baae3d02 | 277 | static enum ofperr handle_flow_mod__(struct ofproto *, |
e3b56933 | 278 | struct ofputil_flow_mod *, |
baae3d02 | 279 | const struct flow_mod_requester *) |
15aaf599 | 280 | OVS_EXCLUDED(ofproto_mutex); |
65e0be10 BP |
281 | static void calc_duration(long long int start, long long int now, |
282 | uint32_t *sec, uint32_t *nsec); | |
f29152ca | 283 | |
d0918789 BP |
284 | /* ofproto. */ |
285 | static uint64_t pick_datapath_id(const struct ofproto *); | |
286 | static uint64_t pick_fallback_dpid(void); | |
287 | static void ofproto_destroy__(struct ofproto *); | |
ada3428f | 288 | static void update_mtu(struct ofproto *, struct ofport *); |
6b3f7f02 | 289 | static void meter_delete(struct ofproto *, uint32_t first, uint32_t last); |
062fea06 | 290 | static void meter_insert_rule(struct rule *); |
f29152ca | 291 | |
d0918789 | 292 | /* unixctl. */ |
abe529af | 293 | static void ofproto_unixctl_init(void); |
f29152ca | 294 | |
abe529af BP |
295 | /* All registered ofproto classes, in probe order. */ |
296 | static const struct ofproto_class **ofproto_classes; | |
297 | static size_t n_ofproto_classes; | |
298 | static size_t allocated_ofproto_classes; | |
7aa697dd | 299 | |
15aaf599 BP |
300 | /* Global lock that protects all flow table operations. */ |
301 | struct ovs_mutex ofproto_mutex = OVS_MUTEX_INITIALIZER; | |
abe7b10f | 302 | |
e79a6c83 | 303 | unsigned ofproto_flow_limit = OFPROTO_FLOW_LIMIT_DEFAULT; |
72310b04 | 304 | unsigned ofproto_max_idle = OFPROTO_MAX_IDLE_DEFAULT; |
380f49c4 | 305 | |
e79a6c83 | 306 | size_t n_handlers, n_revalidators; |
6567010f | 307 | |
f797957a | 308 | /* Map from datapath name to struct ofproto, for use by unixctl commands. */ |
abe529af | 309 | static struct hmap all_ofprotos = HMAP_INITIALIZER(&all_ofprotos); |
ebe482fd | 310 | |
e1b1d06a JP |
311 | /* Initial mappings of port to OpenFlow number mappings. */ |
312 | static struct shash init_ofp_ports = SHASH_INITIALIZER(&init_ofp_ports); | |
313 | ||
abe529af | 314 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); |
f29152ca | 315 | |
40358701 GS |
316 | /* The default value of true waits for flow restore. */ |
317 | static bool flow_restore_wait = true; | |
318 | ||
b0408fca JP |
319 | /* Must be called to initialize the ofproto library. |
320 | * | |
321 | * The caller may pass in 'iface_hints', which contains an shash of | |
322 | * "iface_hint" elements indexed by the interface's name. The provider | |
323 | * may use these hints to describe the startup configuration in order to | |
324 | * reinitialize its state. The caller owns the provided data, so a | |
325 | * provider will make copies of anything required. An ofproto provider | |
326 | * will remove any existing state that is not described by the hint, and | |
327 | * may choose to remove it all. */ | |
328 | void | |
329 | ofproto_init(const struct shash *iface_hints) | |
abe529af | 330 | { |
e1b1d06a | 331 | struct shash_node *node; |
b0408fca | 332 | size_t i; |
f29152ca | 333 | |
b0408fca JP |
334 | ofproto_class_register(&ofproto_dpif_class); |
335 | ||
e1b1d06a JP |
336 | /* Make a local copy, since we don't own 'iface_hints' elements. */ |
337 | SHASH_FOR_EACH(node, iface_hints) { | |
338 | const struct iface_hint *orig_hint = node->data; | |
339 | struct iface_hint *new_hint = xmalloc(sizeof *new_hint); | |
340 | const char *br_type = ofproto_normalize_type(orig_hint->br_type); | |
341 | ||
342 | new_hint->br_name = xstrdup(orig_hint->br_name); | |
343 | new_hint->br_type = xstrdup(br_type); | |
344 | new_hint->ofp_port = orig_hint->ofp_port; | |
345 | ||
346 | shash_add(&init_ofp_ports, node->name, new_hint); | |
347 | } | |
348 | ||
b0408fca | 349 | for (i = 0; i < n_ofproto_classes; i++) { |
e1b1d06a | 350 | ofproto_classes[i]->init(&init_ofp_ports); |
abe529af BP |
351 | } |
352 | } | |
f29152ca | 353 | |
abe529af BP |
354 | /* 'type' should be a normalized datapath type, as returned by |
355 | * ofproto_normalize_type(). Returns the corresponding ofproto_class | |
356 | * structure, or a null pointer if there is none registered for 'type'. */ | |
357 | static const struct ofproto_class * | |
358 | ofproto_class_find__(const char *type) | |
359 | { | |
360 | size_t i; | |
f29152ca | 361 | |
abe529af BP |
362 | for (i = 0; i < n_ofproto_classes; i++) { |
363 | const struct ofproto_class *class = ofproto_classes[i]; | |
364 | struct sset types; | |
365 | bool found; | |
064af421 | 366 | |
abe529af BP |
367 | sset_init(&types); |
368 | class->enumerate_types(&types); | |
369 | found = sset_contains(&types, type); | |
370 | sset_destroy(&types); | |
bcf84111 | 371 | |
abe529af BP |
372 | if (found) { |
373 | return class; | |
374 | } | |
375 | } | |
376 | VLOG_WARN("unknown datapath type %s", type); | |
377 | return NULL; | |
378 | } | |
064af421 | 379 | |
abe529af BP |
380 | /* Registers a new ofproto class. After successful registration, new ofprotos |
381 | * of that type can be created using ofproto_create(). */ | |
382 | int | |
383 | ofproto_class_register(const struct ofproto_class *new_class) | |
384 | { | |
385 | size_t i; | |
7aa697dd | 386 | |
abe529af BP |
387 | for (i = 0; i < n_ofproto_classes; i++) { |
388 | if (ofproto_classes[i] == new_class) { | |
389 | return EEXIST; | |
390 | } | |
391 | } | |
064af421 | 392 | |
abe529af BP |
393 | if (n_ofproto_classes >= allocated_ofproto_classes) { |
394 | ofproto_classes = x2nrealloc(ofproto_classes, | |
395 | &allocated_ofproto_classes, | |
396 | sizeof *ofproto_classes); | |
397 | } | |
398 | ofproto_classes[n_ofproto_classes++] = new_class; | |
399 | return 0; | |
400 | } | |
064af421 | 401 | |
abe529af BP |
402 | /* Unregisters a datapath provider. 'type' must have been previously |
403 | * registered and not currently be in use by any ofprotos. After | |
404 | * unregistration new datapaths of that type cannot be opened using | |
405 | * ofproto_create(). */ | |
406 | int | |
407 | ofproto_class_unregister(const struct ofproto_class *class) | |
408 | { | |
409 | size_t i; | |
76ce9432 | 410 | |
abe529af BP |
411 | for (i = 0; i < n_ofproto_classes; i++) { |
412 | if (ofproto_classes[i] == class) { | |
413 | for (i++; i < n_ofproto_classes; i++) { | |
414 | ofproto_classes[i - 1] = ofproto_classes[i]; | |
415 | } | |
416 | n_ofproto_classes--; | |
417 | return 0; | |
418 | } | |
419 | } | |
420 | VLOG_WARN("attempted to unregister an ofproto class that is not " | |
421 | "registered"); | |
422 | return EAFNOSUPPORT; | |
423 | } | |
4a4cdb3b | 424 | |
f79e673f BP |
425 | /* Clears 'types' and enumerates all registered ofproto types into it. The |
426 | * caller must first initialize the sset. */ | |
427 | void | |
428 | ofproto_enumerate_types(struct sset *types) | |
429 | { | |
abe529af | 430 | size_t i; |
064af421 | 431 | |
c799c306 | 432 | sset_clear(types); |
abe529af BP |
433 | for (i = 0; i < n_ofproto_classes; i++) { |
434 | ofproto_classes[i]->enumerate_types(types); | |
435 | } | |
f79e673f | 436 | } |
064af421 | 437 | |
f79e673f BP |
438 | /* Returns the fully spelled out name for the given ofproto 'type'. |
439 | * | |
440 | * Normalized type string can be compared with strcmp(). Unnormalized type | |
441 | * string might be the same even if they have different spellings. */ | |
442 | const char * | |
443 | ofproto_normalize_type(const char *type) | |
444 | { | |
abe529af | 445 | return type && type[0] ? type : "system"; |
f79e673f | 446 | } |
064af421 | 447 | |
f79e673f BP |
448 | /* Clears 'names' and enumerates the names of all known created ofprotos with |
449 | * the given 'type'. The caller must first initialize the sset. Returns 0 if | |
450 | * successful, otherwise a positive errno value. | |
451 | * | |
452 | * Some kinds of datapaths might not be practically enumerable. This is not | |
453 | * considered an error. */ | |
454 | int | |
455 | ofproto_enumerate_names(const char *type, struct sset *names) | |
456 | { | |
abe529af BP |
457 | const struct ofproto_class *class = ofproto_class_find__(type); |
458 | return class ? class->enumerate_names(type, names) : EAFNOSUPPORT; | |
239ad7d1 | 459 | } |
7aa697dd | 460 | |
064af421 | 461 | int |
abe529af | 462 | ofproto_create(const char *datapath_name, const char *datapath_type, |
064af421 BP |
463 | struct ofproto **ofprotop) |
464 | { | |
abe529af BP |
465 | const struct ofproto_class *class; |
466 | struct ofproto *ofproto; | |
064af421 | 467 | int error; |
c2f0373a | 468 | int i; |
064af421 BP |
469 | |
470 | *ofprotop = NULL; | |
471 | ||
7aa697dd BP |
472 | ofproto_unixctl_init(); |
473 | ||
abe529af BP |
474 | datapath_type = ofproto_normalize_type(datapath_type); |
475 | class = ofproto_class_find__(datapath_type); | |
476 | if (!class) { | |
477 | VLOG_WARN("could not create datapath %s of unknown type %s", | |
478 | datapath_name, datapath_type); | |
479 | return EAFNOSUPPORT; | |
064af421 BP |
480 | } |
481 | ||
abe529af BP |
482 | ofproto = class->alloc(); |
483 | if (!ofproto) { | |
484 | VLOG_ERR("failed to allocate datapath %s of type %s", | |
485 | datapath_name, datapath_type); | |
486 | return ENOMEM; | |
487 | } | |
488 | ||
489 | /* Initialize. */ | |
abe7b10f | 490 | ovs_mutex_lock(&ofproto_mutex); |
abe529af BP |
491 | memset(ofproto, 0, sizeof *ofproto); |
492 | ofproto->ofproto_class = class; | |
493 | ofproto->name = xstrdup(datapath_name); | |
494 | ofproto->type = xstrdup(datapath_type); | |
495 | hmap_insert(&all_ofprotos, &ofproto->hmap_node, | |
496 | hash_string(ofproto->name, 0)); | |
497 | ofproto->datapath_id = 0; | |
8402c74b | 498 | ofproto->forward_bpdu = false; |
abe529af | 499 | ofproto->fallback_dpid = pick_fallback_dpid(); |
061bfea4 BP |
500 | ofproto->mfr_desc = NULL; |
501 | ofproto->hw_desc = NULL; | |
502 | ofproto->sw_desc = NULL; | |
503 | ofproto->serial_desc = NULL; | |
504 | ofproto->dp_desc = NULL; | |
7257b535 | 505 | ofproto->frag_handling = OFPC_FRAG_NORMAL; |
abe529af | 506 | hmap_init(&ofproto->ports); |
fdcea803 | 507 | hmap_init(&ofproto->ofport_usage); |
abe529af | 508 | shash_init(&ofproto->port_by_name); |
e1b1d06a | 509 | simap_init(&ofproto->ofp_requests); |
430dbb14 | 510 | ofproto->max_ports = ofp_to_u16(OFPP_MAX); |
448c2fa8 | 511 | ofproto->eviction_group_timer = LLONG_MIN; |
6c1491fb BP |
512 | ofproto->tables = NULL; |
513 | ofproto->n_tables = 0; | |
98eaac36 | 514 | hindex_init(&ofproto->cookies); |
35f48b8b | 515 | hmap_init(&ofproto->learned_cookies); |
e503cc19 | 516 | list_init(&ofproto->expirable); |
abe529af | 517 | ofproto->connmgr = connmgr_create(ofproto, datapath_name, datapath_name); |
35412852 | 518 | guarded_list_init(&ofproto->rule_executes); |
52a90c29 BP |
519 | ofproto->vlan_bitmap = NULL; |
520 | ofproto->vlans_changed = false; | |
ada3428f | 521 | ofproto->min_mtu = INT_MAX; |
7395c052 NZ |
522 | ovs_rwlock_init(&ofproto->groups_rwlock); |
523 | hmap_init(&ofproto->groups); | |
abe7b10f | 524 | ovs_mutex_unlock(&ofproto_mutex); |
7cb279c2 SH |
525 | ofproto->ogf.capabilities = OFPGFC_CHAINING | OFPGFC_SELECT_LIVENESS | |
526 | OFPGFC_SELECT_WEIGHT; | |
f4fb341b | 527 | ofproto->ogf.max_groups[OFPGT11_ALL] = OFPG_MAX; |
fe7e5749 | 528 | ofproto->ogf.max_groups[OFPGT11_SELECT] = OFPG_MAX; |
f4fb341b | 529 | ofproto->ogf.max_groups[OFPGT11_INDIRECT] = OFPG_MAX; |
dd8cd4b4 | 530 | ofproto->ogf.max_groups[OFPGT11_FF] = OFPG_MAX; |
ddc627ad | 531 | ofproto->ogf.actions[0] = |
f0e7025f BP |
532 | (1 << OFPAT11_OUTPUT) | |
533 | (1 << OFPAT11_COPY_TTL_OUT) | | |
534 | (1 << OFPAT11_COPY_TTL_IN) | | |
535 | (1 << OFPAT11_SET_MPLS_TTL) | | |
536 | (1 << OFPAT11_DEC_MPLS_TTL) | | |
537 | (1 << OFPAT11_PUSH_VLAN) | | |
538 | (1 << OFPAT11_POP_VLAN) | | |
539 | (1 << OFPAT11_PUSH_MPLS) | | |
540 | (1 << OFPAT11_POP_MPLS) | | |
541 | (1 << OFPAT11_SET_QUEUE) | | |
542 | (1 << OFPAT11_GROUP) | | |
543 | (1 << OFPAT11_SET_NW_TTL) | | |
544 | (1 << OFPAT11_DEC_NW_TTL) | | |
545 | (1 << OFPAT12_SET_FIELD); | |
546 | /* not supported: | |
547 | * (1 << OFPAT13_PUSH_PBB) | | |
548 | * (1 << OFPAT13_POP_PBB) */ | |
abe529af | 549 | |
0f5f95a9 | 550 | error = ofproto->ofproto_class->construct(ofproto); |
19a87e36 | 551 | if (error) { |
abe529af | 552 | VLOG_ERR("failed to open datapath %s: %s", |
10a89ef0 | 553 | datapath_name, ovs_strerror(error)); |
abe529af | 554 | ofproto_destroy__(ofproto); |
19a87e36 BP |
555 | return error; |
556 | } | |
073e2a6f | 557 | |
c2f0373a | 558 | /* Check that hidden tables, if any, are at the end. */ |
cb22974d | 559 | ovs_assert(ofproto->n_tables); |
c2f0373a BP |
560 | for (i = 0; i + 1 < ofproto->n_tables; i++) { |
561 | enum oftable_flags flags = ofproto->tables[i].flags; | |
562 | enum oftable_flags next_flags = ofproto->tables[i + 1].flags; | |
563 | ||
cb22974d | 564 | ovs_assert(!(flags & OFTABLE_HIDDEN) || next_flags & OFTABLE_HIDDEN); |
c2f0373a | 565 | } |
19a87e36 | 566 | |
abe529af | 567 | ofproto->datapath_id = pick_datapath_id(ofproto); |
abe529af | 568 | init_ports(ofproto); |
7aa697dd | 569 | |
9cae45dc JR |
570 | /* Initialize meters table. */ |
571 | if (ofproto->ofproto_class->meter_get_features) { | |
572 | ofproto->ofproto_class->meter_get_features(ofproto, | |
573 | &ofproto->meter_features); | |
574 | } else { | |
575 | memset(&ofproto->meter_features, 0, sizeof ofproto->meter_features); | |
576 | } | |
577 | ofproto->meters = xzalloc((ofproto->meter_features.max_meters + 1) | |
578 | * sizeof(struct meter *)); | |
579 | ||
abe529af | 580 | *ofprotop = ofproto; |
064af421 BP |
581 | return 0; |
582 | } | |
583 | ||
91858960 BP |
584 | /* Must be called (only) by an ofproto implementation in its constructor |
585 | * function. See the large comment on 'construct' in struct ofproto_class for | |
586 | * details. */ | |
0f5f95a9 BP |
587 | void |
588 | ofproto_init_tables(struct ofproto *ofproto, int n_tables) | |
589 | { | |
590 | struct oftable *table; | |
591 | ||
cb22974d BP |
592 | ovs_assert(!ofproto->n_tables); |
593 | ovs_assert(n_tables >= 1 && n_tables <= 255); | |
0f5f95a9 BP |
594 | |
595 | ofproto->n_tables = n_tables; | |
596 | ofproto->tables = xmalloc(n_tables * sizeof *ofproto->tables); | |
597 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { | |
598 | oftable_init(table); | |
599 | } | |
600 | } | |
601 | ||
91858960 BP |
602 | /* To be optionally called (only) by an ofproto implementation in its |
603 | * constructor function. See the large comment on 'construct' in struct | |
604 | * ofproto_class for details. | |
605 | * | |
606 | * Sets the maximum number of ports to 'max_ports'. The ofproto generic layer | |
607 | * will then ensure that actions passed into the ofproto implementation will | |
608 | * not refer to OpenFlow ports numbered 'max_ports' or higher. If this | |
609 | * function is not called, there will be no such restriction. | |
610 | * | |
611 | * Reserved ports numbered OFPP_MAX and higher are special and not subject to | |
612 | * the 'max_ports' restriction. */ | |
613 | void | |
430dbb14 | 614 | ofproto_init_max_ports(struct ofproto *ofproto, uint16_t max_ports) |
91858960 | 615 | { |
430dbb14 | 616 | ovs_assert(max_ports <= ofp_to_u16(OFPP_MAX)); |
91858960 BP |
617 | ofproto->max_ports = max_ports; |
618 | } | |
619 | ||
e825ace2 BP |
620 | uint64_t |
621 | ofproto_get_datapath_id(const struct ofproto *ofproto) | |
622 | { | |
623 | return ofproto->datapath_id; | |
624 | } | |
625 | ||
064af421 BP |
626 | void |
627 | ofproto_set_datapath_id(struct ofproto *p, uint64_t datapath_id) | |
628 | { | |
629 | uint64_t old_dpid = p->datapath_id; | |
fa60c019 | 630 | p->datapath_id = datapath_id ? datapath_id : pick_datapath_id(p); |
064af421 | 631 | if (p->datapath_id != old_dpid) { |
76ce9432 BP |
632 | /* Force all active connections to reconnect, since there is no way to |
633 | * notify a controller that the datapath ID has changed. */ | |
fa05809b | 634 | ofproto_reconnect_controllers(p); |
064af421 BP |
635 | } |
636 | } | |
637 | ||
76ce9432 BP |
638 | void |
639 | ofproto_set_controllers(struct ofproto *p, | |
640 | const struct ofproto_controller *controllers, | |
1d9ffc17 | 641 | size_t n_controllers, uint32_t allowed_versions) |
76ce9432 | 642 | { |
1d9ffc17 SH |
643 | connmgr_set_controllers(p->connmgr, controllers, n_controllers, |
644 | allowed_versions); | |
064af421 BP |
645 | } |
646 | ||
31681a5d JP |
647 | void |
648 | ofproto_set_fail_mode(struct ofproto *p, enum ofproto_fail_mode fail_mode) | |
649 | { | |
19a87e36 | 650 | connmgr_set_fail_mode(p->connmgr, fail_mode); |
31681a5d JP |
651 | } |
652 | ||
fa05809b BP |
653 | /* Drops the connections between 'ofproto' and all of its controllers, forcing |
654 | * them to reconnect. */ | |
655 | void | |
656 | ofproto_reconnect_controllers(struct ofproto *ofproto) | |
657 | { | |
19a87e36 | 658 | connmgr_reconnect(ofproto->connmgr); |
917e50e1 BP |
659 | } |
660 | ||
661 | /* Sets the 'n' TCP port addresses in 'extras' as ones to which 'ofproto''s | |
662 | * in-band control should guarantee access, in the same way that in-band | |
663 | * control guarantees access to OpenFlow controllers. */ | |
664 | void | |
665 | ofproto_set_extra_in_band_remotes(struct ofproto *ofproto, | |
666 | const struct sockaddr_in *extras, size_t n) | |
667 | { | |
19a87e36 | 668 | connmgr_set_extra_in_band_remotes(ofproto->connmgr, extras, n); |
917e50e1 BP |
669 | } |
670 | ||
b1da6250 BP |
671 | /* Sets the OpenFlow queue used by flows set up by in-band control on |
672 | * 'ofproto' to 'queue_id'. If 'queue_id' is negative, then in-band control | |
673 | * flows will use the default queue. */ | |
674 | void | |
675 | ofproto_set_in_band_queue(struct ofproto *ofproto, int queue_id) | |
676 | { | |
19a87e36 | 677 | connmgr_set_in_band_queue(ofproto->connmgr, queue_id); |
b1da6250 BP |
678 | } |
679 | ||
084f5290 SH |
680 | /* Sets the number of flows at which eviction from the kernel flow table |
681 | * will occur. */ | |
682 | void | |
e79a6c83 | 683 | ofproto_set_flow_limit(unsigned limit) |
084f5290 | 684 | { |
e79a6c83 | 685 | ofproto_flow_limit = limit; |
084f5290 SH |
686 | } |
687 | ||
72310b04 JS |
688 | /* Sets the maximum idle time for flows in the datapath before they are |
689 | * expired. */ | |
690 | void | |
691 | ofproto_set_max_idle(unsigned max_idle) | |
692 | { | |
693 | ofproto_max_idle = max_idle; | |
694 | } | |
695 | ||
b53055f4 | 696 | /* If forward_bpdu is true, the NORMAL action will forward frames with |
8402c74b SS |
697 | * reserved (e.g. STP) destination Ethernet addresses. if forward_bpdu is false, |
698 | * the NORMAL action will drop these frames. */ | |
699 | void | |
700 | ofproto_set_forward_bpdu(struct ofproto *ofproto, bool forward_bpdu) | |
701 | { | |
702 | bool old_val = ofproto->forward_bpdu; | |
703 | ofproto->forward_bpdu = forward_bpdu; | |
704 | if (old_val != ofproto->forward_bpdu) { | |
705 | if (ofproto->ofproto_class->forward_bpdu_changed) { | |
706 | ofproto->ofproto_class->forward_bpdu_changed(ofproto); | |
707 | } | |
b53055f4 | 708 | } |
8402c74b SS |
709 | } |
710 | ||
e764773c | 711 | /* Sets the MAC aging timeout for the OFPP_NORMAL action on 'ofproto' to |
c4069512 BP |
712 | * 'idle_time', in seconds, and the maximum number of MAC table entries to |
713 | * 'max_entries'. */ | |
e764773c | 714 | void |
c4069512 BP |
715 | ofproto_set_mac_table_config(struct ofproto *ofproto, unsigned idle_time, |
716 | size_t max_entries) | |
e764773c | 717 | { |
c4069512 BP |
718 | if (ofproto->ofproto_class->set_mac_table_config) { |
719 | ofproto->ofproto_class->set_mac_table_config(ofproto, idle_time, | |
720 | max_entries); | |
e764773c BP |
721 | } |
722 | } | |
723 | ||
7c38d0a5 FL |
724 | /* Multicast snooping configuration. */ |
725 | ||
726 | /* Configures multicast snooping on 'ofproto' using the settings | |
727 | * defined in 's'. If 's' is NULL, disables multicast snooping. | |
728 | * | |
729 | * Returns 0 if successful, otherwise a positive errno value. */ | |
730 | int | |
731 | ofproto_set_mcast_snooping(struct ofproto *ofproto, | |
732 | const struct ofproto_mcast_snooping_settings *s) | |
733 | { | |
734 | return (ofproto->ofproto_class->set_mcast_snooping | |
735 | ? ofproto->ofproto_class->set_mcast_snooping(ofproto, s) | |
736 | : EOPNOTSUPP); | |
737 | } | |
738 | ||
739 | /* Configures multicast snooping flood setting on 'ofp_port' of 'ofproto'. | |
740 | * | |
741 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
742 | int | |
743 | ofproto_port_set_mcast_snooping(struct ofproto *ofproto, void *aux, bool flood) | |
744 | { | |
745 | return (ofproto->ofproto_class->set_mcast_snooping_port | |
746 | ? ofproto->ofproto_class->set_mcast_snooping_port(ofproto, aux, | |
747 | flood) | |
748 | : EOPNOTSUPP); | |
749 | } | |
750 | ||
448a4b2f | 751 | void |
30ea0da7 | 752 | ofproto_set_threads(int n_handlers_, int n_revalidators_) |
448a4b2f | 753 | { |
e79a6c83 EJ |
754 | int threads = MAX(count_cpu_cores(), 2); |
755 | ||
30ea0da7 GS |
756 | n_revalidators = MAX(n_revalidators_, 0); |
757 | n_handlers = MAX(n_handlers_, 0); | |
e79a6c83 EJ |
758 | |
759 | if (!n_revalidators) { | |
760 | n_revalidators = n_handlers | |
761 | ? MAX(threads - (int) n_handlers, 1) | |
762 | : threads / 4 + 1; | |
763 | } | |
764 | ||
765 | if (!n_handlers) { | |
766 | n_handlers = MAX(threads - (int) n_revalidators, 1); | |
767 | } | |
448a4b2f AW |
768 | } |
769 | ||
8b6ff729 BP |
770 | void |
771 | ofproto_set_dp_desc(struct ofproto *p, const char *dp_desc) | |
772 | { | |
773 | free(p->dp_desc); | |
774 | p->dp_desc = dp_desc ? xstrdup(dp_desc) : NULL; | |
775 | } | |
776 | ||
064af421 | 777 | int |
81e2083f | 778 | ofproto_set_snoops(struct ofproto *ofproto, const struct sset *snoops) |
064af421 | 779 | { |
19a87e36 | 780 | return connmgr_set_snoops(ofproto->connmgr, snoops); |
064af421 BP |
781 | } |
782 | ||
783 | int | |
0193b2af JG |
784 | ofproto_set_netflow(struct ofproto *ofproto, |
785 | const struct netflow_options *nf_options) | |
064af421 | 786 | { |
abe529af BP |
787 | if (nf_options && sset_is_empty(&nf_options->collectors)) { |
788 | nf_options = NULL; | |
789 | } | |
790 | ||
791 | if (ofproto->ofproto_class->set_netflow) { | |
792 | return ofproto->ofproto_class->set_netflow(ofproto, nf_options); | |
064af421 | 793 | } else { |
abe529af | 794 | return nf_options ? EOPNOTSUPP : 0; |
064af421 BP |
795 | } |
796 | } | |
797 | ||
abe529af | 798 | int |
72b06300 BP |
799 | ofproto_set_sflow(struct ofproto *ofproto, |
800 | const struct ofproto_sflow_options *oso) | |
801 | { | |
abe529af BP |
802 | if (oso && sset_is_empty(&oso->targets)) { |
803 | oso = NULL; | |
804 | } | |
72b06300 | 805 | |
abe529af BP |
806 | if (ofproto->ofproto_class->set_sflow) { |
807 | return ofproto->ofproto_class->set_sflow(ofproto, oso); | |
72b06300 | 808 | } else { |
abe529af | 809 | return oso ? EOPNOTSUPP : 0; |
72b06300 BP |
810 | } |
811 | } | |
29089a54 RL |
812 | |
813 | int | |
814 | ofproto_set_ipfix(struct ofproto *ofproto, | |
815 | const struct ofproto_ipfix_bridge_exporter_options *bo, | |
816 | const struct ofproto_ipfix_flow_exporter_options *fo, | |
817 | size_t n_fo) | |
818 | { | |
819 | if (ofproto->ofproto_class->set_ipfix) { | |
820 | return ofproto->ofproto_class->set_ipfix(ofproto, bo, fo, n_fo); | |
821 | } else { | |
822 | return (bo || fo) ? EOPNOTSUPP : 0; | |
823 | } | |
824 | } | |
40358701 GS |
825 | |
826 | void | |
827 | ofproto_set_flow_restore_wait(bool flow_restore_wait_db) | |
828 | { | |
829 | flow_restore_wait = flow_restore_wait_db; | |
830 | } | |
831 | ||
832 | bool | |
833 | ofproto_get_flow_restore_wait(void) | |
834 | { | |
835 | return flow_restore_wait; | |
836 | } | |
837 | ||
e7934396 | 838 | \f |
21f7563c JP |
839 | /* Spanning Tree Protocol (STP) configuration. */ |
840 | ||
841 | /* Configures STP on 'ofproto' using the settings defined in 's'. If | |
842 | * 's' is NULL, disables STP. | |
843 | * | |
844 | * Returns 0 if successful, otherwise a positive errno value. */ | |
845 | int | |
846 | ofproto_set_stp(struct ofproto *ofproto, | |
847 | const struct ofproto_stp_settings *s) | |
848 | { | |
849 | return (ofproto->ofproto_class->set_stp | |
850 | ? ofproto->ofproto_class->set_stp(ofproto, s) | |
851 | : EOPNOTSUPP); | |
852 | } | |
853 | ||
854 | /* Retrieves STP status of 'ofproto' and stores it in 's'. If the | |
855 | * 'enabled' member of 's' is false, then the other members are not | |
856 | * meaningful. | |
857 | * | |
858 | * Returns 0 if successful, otherwise a positive errno value. */ | |
859 | int | |
860 | ofproto_get_stp_status(struct ofproto *ofproto, | |
861 | struct ofproto_stp_status *s) | |
862 | { | |
863 | return (ofproto->ofproto_class->get_stp_status | |
864 | ? ofproto->ofproto_class->get_stp_status(ofproto, s) | |
865 | : EOPNOTSUPP); | |
866 | } | |
867 | ||
868 | /* Configures STP on 'ofp_port' of 'ofproto' using the settings defined | |
869 | * in 's'. The caller is responsible for assigning STP port numbers | |
870 | * (using the 'port_num' member in the range of 1 through 255, inclusive) | |
871 | * and ensuring there are no duplicates. If the 's' is NULL, then STP | |
872 | * is disabled on the port. | |
873 | * | |
874 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
875 | int | |
4e022ec0 | 876 | ofproto_port_set_stp(struct ofproto *ofproto, ofp_port_t ofp_port, |
21f7563c JP |
877 | const struct ofproto_port_stp_settings *s) |
878 | { | |
879 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
880 | if (!ofport) { | |
881 | VLOG_WARN("%s: cannot configure STP on nonexistent port %"PRIu16, | |
882 | ofproto->name, ofp_port); | |
883 | return ENODEV; | |
884 | } | |
885 | ||
886 | return (ofproto->ofproto_class->set_stp_port | |
887 | ? ofproto->ofproto_class->set_stp_port(ofport, s) | |
888 | : EOPNOTSUPP); | |
889 | } | |
890 | ||
891 | /* Retrieves STP port status of 'ofp_port' on 'ofproto' and stores it in | |
892 | * 's'. If the 'enabled' member in 's' is false, then the other members | |
893 | * are not meaningful. | |
894 | * | |
895 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
896 | int | |
4e022ec0 | 897 | ofproto_port_get_stp_status(struct ofproto *ofproto, ofp_port_t ofp_port, |
21f7563c JP |
898 | struct ofproto_port_stp_status *s) |
899 | { | |
900 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
901 | if (!ofport) { | |
b0a5c43b JP |
902 | VLOG_WARN_RL(&rl, "%s: cannot get STP status on nonexistent " |
903 | "port %"PRIu16, ofproto->name, ofp_port); | |
21f7563c JP |
904 | return ENODEV; |
905 | } | |
906 | ||
907 | return (ofproto->ofproto_class->get_stp_port_status | |
908 | ? ofproto->ofproto_class->get_stp_port_status(ofport, s) | |
909 | : EOPNOTSUPP); | |
910 | } | |
fd28ce3a JS |
911 | |
912 | /* Retrieves STP port statistics of 'ofp_port' on 'ofproto' and stores it in | |
913 | * 's'. If the 'enabled' member in 's' is false, then the other members | |
914 | * are not meaningful. | |
915 | * | |
916 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
917 | int | |
918 | ofproto_port_get_stp_stats(struct ofproto *ofproto, ofp_port_t ofp_port, | |
919 | struct ofproto_port_stp_stats *s) | |
920 | { | |
921 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
922 | if (!ofport) { | |
923 | VLOG_WARN_RL(&rl, "%s: cannot get STP stats on nonexistent " | |
924 | "port %"PRIu16, ofproto->name, ofp_port); | |
925 | return ENODEV; | |
926 | } | |
927 | ||
928 | return (ofproto->ofproto_class->get_stp_port_stats | |
929 | ? ofproto->ofproto_class->get_stp_port_stats(ofport, s) | |
930 | : EOPNOTSUPP); | |
931 | } | |
21f7563c | 932 | \f |
8b36f51e EJ |
933 | /* Queue DSCP configuration. */ |
934 | ||
935 | /* Registers meta-data associated with the 'n_qdscp' Qualities of Service | |
936 | * 'queues' attached to 'ofport'. This data is not intended to be sufficient | |
937 | * to implement QoS. Instead, it is used to implement features which require | |
938 | * knowledge of what queues exist on a port, and some basic information about | |
939 | * them. | |
940 | * | |
941 | * Returns 0 if successful, otherwise a positive errno value. */ | |
942 | int | |
4e022ec0 | 943 | ofproto_port_set_queues(struct ofproto *ofproto, ofp_port_t ofp_port, |
8b36f51e EJ |
944 | const struct ofproto_port_queue *queues, |
945 | size_t n_queues) | |
946 | { | |
947 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
948 | ||
949 | if (!ofport) { | |
950 | VLOG_WARN("%s: cannot set queues on nonexistent port %"PRIu16, | |
951 | ofproto->name, ofp_port); | |
952 | return ENODEV; | |
953 | } | |
954 | ||
955 | return (ofproto->ofproto_class->set_queues | |
956 | ? ofproto->ofproto_class->set_queues(ofport, queues, n_queues) | |
957 | : EOPNOTSUPP); | |
958 | } | |
959 | \f | |
e7934396 BP |
960 | /* Connectivity Fault Management configuration. */ |
961 | ||
892815f5 | 962 | /* Clears the CFM configuration from 'ofp_port' on 'ofproto'. */ |
e7934396 | 963 | void |
4e022ec0 | 964 | ofproto_port_clear_cfm(struct ofproto *ofproto, ofp_port_t ofp_port) |
e7934396 | 965 | { |
abe529af BP |
966 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
967 | if (ofport && ofproto->ofproto_class->set_cfm) { | |
a5610457 | 968 | ofproto->ofproto_class->set_cfm(ofport, NULL); |
e7934396 BP |
969 | } |
970 | } | |
72b06300 | 971 | |
892815f5 | 972 | /* Configures connectivity fault management on 'ofp_port' in 'ofproto'. Takes |
93b8df38 EJ |
973 | * basic configuration from the configuration members in 'cfm', and the remote |
974 | * maintenance point ID from remote_mpid. Ignores the statistics members of | |
975 | * 'cfm'. | |
e7934396 | 976 | * |
892815f5 | 977 | * This function has no effect if 'ofproto' does not have a port 'ofp_port'. */ |
e7934396 | 978 | void |
4e022ec0 | 979 | ofproto_port_set_cfm(struct ofproto *ofproto, ofp_port_t ofp_port, |
a5610457 | 980 | const struct cfm_settings *s) |
e7934396 BP |
981 | { |
982 | struct ofport *ofport; | |
abe529af | 983 | int error; |
e7934396 | 984 | |
abe529af | 985 | ofport = ofproto_get_port(ofproto, ofp_port); |
e7934396 | 986 | if (!ofport) { |
892815f5 BP |
987 | VLOG_WARN("%s: cannot configure CFM on nonexistent port %"PRIu16, |
988 | ofproto->name, ofp_port); | |
e7934396 BP |
989 | return; |
990 | } | |
991 | ||
93b8df38 EJ |
992 | /* XXX: For configuration simplicity, we only support one remote_mpid |
993 | * outside of the CFM module. It's not clear if this is the correct long | |
994 | * term solution or not. */ | |
abe529af | 995 | error = (ofproto->ofproto_class->set_cfm |
a5610457 | 996 | ? ofproto->ofproto_class->set_cfm(ofport, s) |
abe529af BP |
997 | : EOPNOTSUPP); |
998 | if (error) { | |
999 | VLOG_WARN("%s: CFM configuration on port %"PRIu16" (%s) failed (%s)", | |
1000 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), | |
10a89ef0 | 1001 | ovs_strerror(error)); |
e7934396 | 1002 | } |
e7934396 | 1003 | } |
e7934396 | 1004 | |
ccc09689 EJ |
1005 | /* Configures BFD on 'ofp_port' in 'ofproto'. This function has no effect if |
1006 | * 'ofproto' does not have a port 'ofp_port'. */ | |
1007 | void | |
4e022ec0 | 1008 | ofproto_port_set_bfd(struct ofproto *ofproto, ofp_port_t ofp_port, |
ccc09689 EJ |
1009 | const struct smap *cfg) |
1010 | { | |
1011 | struct ofport *ofport; | |
1012 | int error; | |
1013 | ||
1014 | ofport = ofproto_get_port(ofproto, ofp_port); | |
1015 | if (!ofport) { | |
1016 | VLOG_WARN("%s: cannot configure bfd on nonexistent port %"PRIu16, | |
1017 | ofproto->name, ofp_port); | |
e8999bdc | 1018 | return; |
ccc09689 EJ |
1019 | } |
1020 | ||
1021 | error = (ofproto->ofproto_class->set_bfd | |
1022 | ? ofproto->ofproto_class->set_bfd(ofport, cfg) | |
1023 | : EOPNOTSUPP); | |
1024 | if (error) { | |
1025 | VLOG_WARN("%s: bfd configuration on port %"PRIu16" (%s) failed (%s)", | |
1026 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), | |
10a89ef0 | 1027 | ovs_strerror(error)); |
ccc09689 EJ |
1028 | } |
1029 | } | |
1030 | ||
8f5514fe AW |
1031 | /* Checks the status change of BFD on 'ofport'. |
1032 | * | |
1033 | * Returns true if 'ofproto_class' does not support 'bfd_status_changed'. */ | |
1034 | bool | |
1035 | ofproto_port_bfd_status_changed(struct ofproto *ofproto, ofp_port_t ofp_port) | |
1036 | { | |
1037 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1038 | return (ofport && ofproto->ofproto_class->bfd_status_changed | |
1039 | ? ofproto->ofproto_class->bfd_status_changed(ofport) | |
1040 | : true); | |
1041 | } | |
1042 | ||
88bf179a | 1043 | /* Populates 'status' with the status of BFD on 'ofport'. Returns 0 on |
8f5514fe AW |
1044 | * success. Returns a positive errno otherwise. Has no effect if 'ofp_port' |
1045 | * is not an OpenFlow port in 'ofproto'. | |
88bf179a AW |
1046 | * |
1047 | * The caller must provide and own '*status'. */ | |
ccc09689 | 1048 | int |
4e022ec0 | 1049 | ofproto_port_get_bfd_status(struct ofproto *ofproto, ofp_port_t ofp_port, |
ccc09689 EJ |
1050 | struct smap *status) |
1051 | { | |
1052 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1053 | return (ofport && ofproto->ofproto_class->get_bfd_status | |
1054 | ? ofproto->ofproto_class->get_bfd_status(ofport, status) | |
1055 | : EOPNOTSUPP); | |
1056 | } | |
1057 | ||
fa066f01 BP |
1058 | /* Checks the status of LACP negotiation for 'ofp_port' within ofproto. |
1059 | * Returns 1 if LACP partner information for 'ofp_port' is up-to-date, | |
1060 | * 0 if LACP partner information is not current (generally indicating a | |
1061 | * connectivity problem), or -1 if LACP is not enabled on 'ofp_port'. */ | |
1062 | int | |
4e022ec0 | 1063 | ofproto_port_is_lacp_current(struct ofproto *ofproto, ofp_port_t ofp_port) |
fa066f01 | 1064 | { |
abe529af BP |
1065 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1066 | return (ofport && ofproto->ofproto_class->port_is_lacp_current | |
1067 | ? ofproto->ofproto_class->port_is_lacp_current(ofport) | |
fa066f01 | 1068 | : -1); |
e7934396 | 1069 | } |
e7934396 | 1070 | \f |
fa066f01 | 1071 | /* Bundles. */ |
e7934396 | 1072 | |
abe529af BP |
1073 | /* Registers a "bundle" associated with client data pointer 'aux' in 'ofproto'. |
1074 | * A bundle is the same concept as a Port in OVSDB, that is, it consists of one | |
1075 | * or more "slave" devices (Interfaces, in OVSDB) along with a VLAN | |
1076 | * configuration plus, if there is more than one slave, a bonding | |
1077 | * configuration. | |
1078 | * | |
1079 | * If 'aux' is already registered then this function updates its configuration | |
1080 | * to 's'. Otherwise, this function registers a new bundle. | |
1081 | * | |
1082 | * Bundles only affect the NXAST_AUTOPATH action and output to the OFPP_NORMAL | |
1083 | * port. */ | |
1084 | int | |
1085 | ofproto_bundle_register(struct ofproto *ofproto, void *aux, | |
1086 | const struct ofproto_bundle_settings *s) | |
fa066f01 | 1087 | { |
abe529af BP |
1088 | return (ofproto->ofproto_class->bundle_set |
1089 | ? ofproto->ofproto_class->bundle_set(ofproto, aux, s) | |
1090 | : EOPNOTSUPP); | |
fa066f01 BP |
1091 | } |
1092 | ||
abe529af BP |
1093 | /* Unregisters the bundle registered on 'ofproto' with auxiliary data 'aux'. |
1094 | * If no such bundle has been registered, this has no effect. */ | |
1095 | int | |
1096 | ofproto_bundle_unregister(struct ofproto *ofproto, void *aux) | |
e7934396 | 1097 | { |
abe529af | 1098 | return ofproto_bundle_register(ofproto, aux, NULL); |
e7934396 | 1099 | } |
fa066f01 | 1100 | |
e7934396 | 1101 | \f |
abe529af BP |
1102 | /* Registers a mirror associated with client data pointer 'aux' in 'ofproto'. |
1103 | * If 'aux' is already registered then this function updates its configuration | |
c06bba01 | 1104 | * to 's'. Otherwise, this function registers a new mirror. */ |
abe529af BP |
1105 | int |
1106 | ofproto_mirror_register(struct ofproto *ofproto, void *aux, | |
1107 | const struct ofproto_mirror_settings *s) | |
064af421 | 1108 | { |
abe529af BP |
1109 | return (ofproto->ofproto_class->mirror_set |
1110 | ? ofproto->ofproto_class->mirror_set(ofproto, aux, s) | |
1111 | : EOPNOTSUPP); | |
064af421 BP |
1112 | } |
1113 | ||
abe529af BP |
1114 | /* Unregisters the mirror registered on 'ofproto' with auxiliary data 'aux'. |
1115 | * If no mirror has been registered, this has no effect. */ | |
1116 | int | |
1117 | ofproto_mirror_unregister(struct ofproto *ofproto, void *aux) | |
064af421 | 1118 | { |
abe529af | 1119 | return ofproto_mirror_register(ofproto, aux, NULL); |
064af421 BP |
1120 | } |
1121 | ||
9d24de3b JP |
1122 | /* Retrieves statistics from mirror associated with client data pointer |
1123 | * 'aux' in 'ofproto'. Stores packet and byte counts in 'packets' and | |
1124 | * 'bytes', respectively. If a particular counters is not supported, | |
1125 | * the appropriate argument is set to UINT64_MAX. */ | |
1126 | int | |
1127 | ofproto_mirror_get_stats(struct ofproto *ofproto, void *aux, | |
1128 | uint64_t *packets, uint64_t *bytes) | |
1129 | { | |
1130 | if (!ofproto->ofproto_class->mirror_get_stats) { | |
1131 | *packets = *bytes = UINT64_MAX; | |
1132 | return EOPNOTSUPP; | |
1133 | } | |
1134 | ||
1135 | return ofproto->ofproto_class->mirror_get_stats(ofproto, aux, | |
1136 | packets, bytes); | |
1137 | } | |
1138 | ||
abe529af BP |
1139 | /* Configures the VLANs whose bits are set to 1 in 'flood_vlans' as VLANs on |
1140 | * which all packets are flooded, instead of using MAC learning. If | |
1141 | * 'flood_vlans' is NULL, then MAC learning applies to all VLANs. | |
1142 | * | |
1143 | * Flood VLANs affect only the treatment of packets output to the OFPP_NORMAL | |
1144 | * port. */ | |
1145 | int | |
1146 | ofproto_set_flood_vlans(struct ofproto *ofproto, unsigned long *flood_vlans) | |
abdfe474 | 1147 | { |
abe529af BP |
1148 | return (ofproto->ofproto_class->set_flood_vlans |
1149 | ? ofproto->ofproto_class->set_flood_vlans(ofproto, flood_vlans) | |
1150 | : EOPNOTSUPP); | |
abdfe474 JP |
1151 | } |
1152 | ||
abe529af BP |
1153 | /* Returns true if 'aux' is a registered bundle that is currently in use as the |
1154 | * output for a mirror. */ | |
1155 | bool | |
b4affc74 | 1156 | ofproto_is_mirror_output_bundle(const struct ofproto *ofproto, void *aux) |
abe529af BP |
1157 | { |
1158 | return (ofproto->ofproto_class->is_mirror_output_bundle | |
1159 | ? ofproto->ofproto_class->is_mirror_output_bundle(ofproto, aux) | |
1160 | : false); | |
1161 | } | |
1162 | \f | |
254750ce BP |
1163 | /* Configuration of OpenFlow tables. */ |
1164 | ||
1165 | /* Returns the number of OpenFlow tables in 'ofproto'. */ | |
1166 | int | |
1167 | ofproto_get_n_tables(const struct ofproto *ofproto) | |
1168 | { | |
1169 | return ofproto->n_tables; | |
1170 | } | |
1171 | ||
adcf00ba AZ |
1172 | /* Returns the number of Controller visible OpenFlow tables |
1173 | * in 'ofproto'. This number will exclude Hidden tables. | |
1174 | * This funtion's return value should be less or equal to that of | |
1175 | * ofproto_get_n_tables() . */ | |
1176 | uint8_t | |
1177 | ofproto_get_n_visible_tables(const struct ofproto *ofproto) | |
1178 | { | |
1179 | uint8_t n = ofproto->n_tables; | |
1180 | ||
1181 | /* Count only non-hidden tables in the number of tables. (Hidden tables, | |
1182 | * if present, are always at the end.) */ | |
1183 | while(n && (ofproto->tables[n - 1].flags & OFTABLE_HIDDEN)) { | |
1184 | n--; | |
1185 | } | |
1186 | ||
1187 | return n; | |
1188 | } | |
1189 | ||
254750ce BP |
1190 | /* Configures the OpenFlow table in 'ofproto' with id 'table_id' with the |
1191 | * settings from 's'. 'table_id' must be in the range 0 through the number of | |
1192 | * OpenFlow tables in 'ofproto' minus 1, inclusive. | |
1193 | * | |
1194 | * For read-only tables, only the name may be configured. */ | |
1195 | void | |
1196 | ofproto_configure_table(struct ofproto *ofproto, int table_id, | |
1197 | const struct ofproto_table_settings *s) | |
1198 | { | |
1199 | struct oftable *table; | |
1200 | ||
cb22974d | 1201 | ovs_assert(table_id >= 0 && table_id < ofproto->n_tables); |
254750ce BP |
1202 | table = &ofproto->tables[table_id]; |
1203 | ||
1204 | oftable_set_name(table, s->name); | |
1205 | ||
1206 | if (table->flags & OFTABLE_READONLY) { | |
1207 | return; | |
1208 | } | |
1209 | ||
1210 | if (s->groups) { | |
1211 | oftable_enable_eviction(table, s->groups, s->n_groups); | |
1212 | } else { | |
1213 | oftable_disable_eviction(table); | |
1214 | } | |
1215 | ||
1216 | table->max_flows = s->max_flows; | |
afae68b1 | 1217 | |
f358a2cb JR |
1218 | if (classifier_set_prefix_fields(&table->cls, |
1219 | s->prefix_fields, s->n_prefix_fields)) { | |
1220 | /* XXX: Trigger revalidation. */ | |
1221 | } | |
834fe5cb BP |
1222 | |
1223 | ovs_mutex_lock(&ofproto_mutex); | |
1224 | evict_rules_from_table(table, 0); | |
1225 | ovs_mutex_unlock(&ofproto_mutex); | |
254750ce BP |
1226 | } |
1227 | \f | |
81e2083f BP |
1228 | bool |
1229 | ofproto_has_snoops(const struct ofproto *ofproto) | |
1230 | { | |
1231 | return connmgr_has_snoops(ofproto->connmgr); | |
1232 | } | |
1233 | ||
064af421 | 1234 | void |
81e2083f | 1235 | ofproto_get_snoops(const struct ofproto *ofproto, struct sset *snoops) |
064af421 | 1236 | { |
19a87e36 | 1237 | connmgr_get_snoops(ofproto->connmgr, snoops); |
064af421 BP |
1238 | } |
1239 | ||
15aaf599 | 1240 | static void |
b20f4073 | 1241 | ofproto_rule_delete__(struct rule *rule, uint8_t reason) |
15aaf599 BP |
1242 | OVS_REQUIRES(ofproto_mutex) |
1243 | { | |
9ca4a86f | 1244 | struct rule_collection rules; |
15aaf599 | 1245 | |
9ca4a86f BP |
1246 | rules.rules = rules.stub; |
1247 | rules.n = 1; | |
1248 | rules.stub[0] = rule; | |
1249 | delete_flows__(&rules, reason, NULL); | |
15aaf599 BP |
1250 | } |
1251 | ||
a73fcd71 | 1252 | /* Deletes 'rule' from 'ofproto'. |
8037acb4 | 1253 | * |
b74cb5d8 BP |
1254 | * Within an ofproto implementation, this function allows an ofproto |
1255 | * implementation to destroy any rules that remain when its ->destruct() | |
1256 | * function is called. This function is not suitable for use elsewhere in an | |
1257 | * ofproto implementation. | |
1258 | * | |
b74cb5d8 | 1259 | * This function implements steps 4.4 and 4.5 in the section titled "Rule Life |
8b81d1ef | 1260 | * Cycle" in ofproto-provider.h. */ |
b74cb5d8 | 1261 | void |
8b81d1ef | 1262 | ofproto_rule_delete(struct ofproto *ofproto, struct rule *rule) |
15aaf599 | 1263 | OVS_EXCLUDED(ofproto_mutex) |
7ee20df1 | 1264 | { |
834fe5cb BP |
1265 | /* This skips the ofmonitor and flow-removed notifications because the |
1266 | * switch is being deleted and any OpenFlow channels have been or soon will | |
1267 | * be killed. */ | |
15aaf599 | 1268 | ovs_mutex_lock(&ofproto_mutex); |
8b81d1ef | 1269 | oftable_remove_rule__(ofproto, rule); |
8037acb4 | 1270 | ofproto->ofproto_class->rule_delete(rule); |
15aaf599 | 1271 | ovs_mutex_unlock(&ofproto_mutex); |
8037acb4 BP |
1272 | } |
1273 | ||
1274 | static void | |
1275 | ofproto_flush__(struct ofproto *ofproto) | |
15aaf599 | 1276 | OVS_EXCLUDED(ofproto_mutex) |
8037acb4 | 1277 | { |
d0918789 | 1278 | struct oftable *table; |
7ee20df1 BP |
1279 | |
1280 | if (ofproto->ofproto_class->flush) { | |
1281 | ofproto->ofproto_class->flush(ofproto); | |
1282 | } | |
1283 | ||
15aaf599 | 1284 | ovs_mutex_lock(&ofproto_mutex); |
b772ded8 | 1285 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
78c8df12 | 1286 | struct rule *rule; |
7ee20df1 | 1287 | |
5c67e4af BP |
1288 | if (table->flags & OFTABLE_HIDDEN) { |
1289 | continue; | |
1290 | } | |
1291 | ||
78c8df12 | 1292 | CLS_FOR_EACH_SAFE (rule, cr, &table->cls) { |
b20f4073 | 1293 | ofproto_rule_delete__(rule, OFPRR_DELETE); |
7ee20df1 BP |
1294 | } |
1295 | } | |
15aaf599 | 1296 | ovs_mutex_unlock(&ofproto_mutex); |
7ee20df1 BP |
1297 | } |
1298 | ||
7395c052 NZ |
1299 | static void delete_group(struct ofproto *ofproto, uint32_t group_id); |
1300 | ||
abe529af BP |
1301 | static void |
1302 | ofproto_destroy__(struct ofproto *ofproto) | |
15aaf599 | 1303 | OVS_EXCLUDED(ofproto_mutex) |
abe529af | 1304 | { |
d0918789 | 1305 | struct oftable *table; |
6c1491fb | 1306 | |
35412852 | 1307 | destroy_rule_executes(ofproto); |
7395c052 | 1308 | delete_group(ofproto, OFPG_ALL); |
5c09b672 GS |
1309 | |
1310 | guarded_list_destroy(&ofproto->rule_executes); | |
7395c052 NZ |
1311 | ovs_rwlock_destroy(&ofproto->groups_rwlock); |
1312 | hmap_destroy(&ofproto->groups); | |
1313 | ||
abe529af | 1314 | connmgr_destroy(ofproto->connmgr); |
fa066f01 | 1315 | |
abe529af BP |
1316 | hmap_remove(&all_ofprotos, &ofproto->hmap_node); |
1317 | free(ofproto->name); | |
955a7127 | 1318 | free(ofproto->type); |
abe529af BP |
1319 | free(ofproto->mfr_desc); |
1320 | free(ofproto->hw_desc); | |
1321 | free(ofproto->sw_desc); | |
1322 | free(ofproto->serial_desc); | |
1323 | free(ofproto->dp_desc); | |
abe529af | 1324 | hmap_destroy(&ofproto->ports); |
fdcea803 | 1325 | hmap_destroy(&ofproto->ofport_usage); |
abe529af | 1326 | shash_destroy(&ofproto->port_by_name); |
e1b1d06a | 1327 | simap_destroy(&ofproto->ofp_requests); |
6c1491fb | 1328 | |
b772ded8 | 1329 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
d0918789 | 1330 | oftable_destroy(table); |
6c1491fb BP |
1331 | } |
1332 | free(ofproto->tables); | |
fa066f01 | 1333 | |
1406c79b BP |
1334 | ovs_assert(hindex_is_empty(&ofproto->cookies)); |
1335 | hindex_destroy(&ofproto->cookies); | |
1336 | ||
35f48b8b BP |
1337 | ovs_assert(hmap_is_empty(&ofproto->learned_cookies)); |
1338 | hmap_destroy(&ofproto->learned_cookies); | |
1339 | ||
52a90c29 BP |
1340 | free(ofproto->vlan_bitmap); |
1341 | ||
abe529af BP |
1342 | ofproto->ofproto_class->dealloc(ofproto); |
1343 | } | |
fa066f01 | 1344 | |
064af421 BP |
1345 | void |
1346 | ofproto_destroy(struct ofproto *p) | |
15aaf599 | 1347 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 1348 | { |
ca0f572c | 1349 | struct ofport *ofport, *next_ofport; |
fdcea803 | 1350 | struct ofport_usage *usage, *next_usage; |
064af421 BP |
1351 | |
1352 | if (!p) { | |
1353 | return; | |
1354 | } | |
1355 | ||
717de9ff JR |
1356 | if (p->meters) { |
1357 | meter_delete(p, 1, p->meter_features.max_meters); | |
1358 | p->meter_features.max_meters = 0; | |
1359 | free(p->meters); | |
1360 | p->meters = NULL; | |
1361 | } | |
1362 | ||
7ee20df1 | 1363 | ofproto_flush__(p); |
4e8e4213 | 1364 | HMAP_FOR_EACH_SAFE (ofport, next_ofport, hmap_node, &p->ports) { |
abe529af | 1365 | ofport_destroy(ofport); |
064af421 | 1366 | } |
064af421 | 1367 | |
fdcea803 GS |
1368 | HMAP_FOR_EACH_SAFE (usage, next_usage, hmap_node, &p->ofport_usage) { |
1369 | hmap_remove(&p->ofport_usage, &usage->hmap_node); | |
1370 | free(usage); | |
1371 | } | |
1372 | ||
abe529af | 1373 | p->ofproto_class->destruct(p); |
f416c8d6 JR |
1374 | /* Destroying rules is deferred, must have 'ofproto' around for them. */ |
1375 | ovsrcu_postpone(ofproto_destroy__, p); | |
064af421 BP |
1376 | } |
1377 | ||
abe529af BP |
1378 | /* Destroys the datapath with the respective 'name' and 'type'. With the Linux |
1379 | * kernel datapath, for example, this destroys the datapath in the kernel, and | |
1380 | * with the netdev-based datapath, it tears down the data structures that | |
1381 | * represent the datapath. | |
1382 | * | |
1383 | * The datapath should not be currently open as an ofproto. */ | |
064af421 | 1384 | int |
abe529af | 1385 | ofproto_delete(const char *name, const char *type) |
064af421 | 1386 | { |
abe529af BP |
1387 | const struct ofproto_class *class = ofproto_class_find__(type); |
1388 | return (!class ? EAFNOSUPPORT | |
1389 | : !class->del ? EACCES | |
1390 | : class->del(type, name)); | |
064af421 BP |
1391 | } |
1392 | ||
e9e28be3 BP |
1393 | static void |
1394 | process_port_change(struct ofproto *ofproto, int error, char *devname) | |
1395 | { | |
1396 | if (error == ENOBUFS) { | |
1397 | reinit_ports(ofproto); | |
1398 | } else if (!error) { | |
1399 | update_port(ofproto, devname); | |
1400 | free(devname); | |
1401 | } | |
1402 | } | |
1403 | ||
11a574a7 JP |
1404 | int |
1405 | ofproto_type_run(const char *datapath_type) | |
1406 | { | |
1407 | const struct ofproto_class *class; | |
1408 | int error; | |
1409 | ||
1410 | datapath_type = ofproto_normalize_type(datapath_type); | |
1411 | class = ofproto_class_find__(datapath_type); | |
1412 | ||
1413 | error = class->type_run ? class->type_run(datapath_type) : 0; | |
1414 | if (error && error != EAGAIN) { | |
1415 | VLOG_ERR_RL(&rl, "%s: type_run failed (%s)", | |
10a89ef0 | 1416 | datapath_type, ovs_strerror(error)); |
11a574a7 JP |
1417 | } |
1418 | return error; | |
1419 | } | |
1420 | ||
11a574a7 JP |
1421 | void |
1422 | ofproto_type_wait(const char *datapath_type) | |
1423 | { | |
1424 | const struct ofproto_class *class; | |
1425 | ||
1426 | datapath_type = ofproto_normalize_type(datapath_type); | |
1427 | class = ofproto_class_find__(datapath_type); | |
1428 | ||
1429 | if (class->type_wait) { | |
1430 | class->type_wait(datapath_type); | |
1431 | } | |
1432 | } | |
1433 | ||
064af421 | 1434 | int |
abe529af | 1435 | ofproto_run(struct ofproto *p) |
064af421 | 1436 | { |
064af421 | 1437 | int error; |
da4a6191 | 1438 | uint64_t new_seq; |
064af421 | 1439 | |
abe529af | 1440 | error = p->ofproto_class->run(p); |
5fcc0d00 | 1441 | if (error && error != EAGAIN) { |
10a89ef0 | 1442 | VLOG_ERR_RL(&rl, "%s: run failed (%s)", p->name, ovs_strerror(error)); |
149f577a JG |
1443 | } |
1444 | ||
35412852 BP |
1445 | run_rule_executes(p); |
1446 | ||
448c2fa8 EJ |
1447 | /* Restore the eviction group heap invariant occasionally. */ |
1448 | if (p->eviction_group_timer < time_msec()) { | |
1449 | size_t i; | |
1450 | ||
1451 | p->eviction_group_timer = time_msec() + 1000; | |
1452 | ||
1453 | for (i = 0; i < p->n_tables; i++) { | |
1454 | struct oftable *table = &p->tables[i]; | |
1455 | struct eviction_group *evg; | |
448c2fa8 EJ |
1456 | struct rule *rule; |
1457 | ||
1458 | if (!table->eviction_fields) { | |
1459 | continue; | |
1460 | } | |
1461 | ||
15aaf599 | 1462 | ovs_mutex_lock(&ofproto_mutex); |
5f0476ce | 1463 | CLS_FOR_EACH (rule, cr, &table->cls) { |
6d56c1f1 K |
1464 | if (rule->idle_timeout || rule->hard_timeout) { |
1465 | if (!rule->eviction_group) { | |
1466 | eviction_group_add_rule(rule); | |
1467 | } else { | |
1468 | heap_raw_change(&rule->evg_node, | |
1469 | rule_eviction_priority(p, rule)); | |
1470 | } | |
448c2fa8 EJ |
1471 | } |
1472 | } | |
6d56c1f1 K |
1473 | |
1474 | HEAP_FOR_EACH (evg, size_node, &table->eviction_groups_by_size) { | |
1475 | heap_rebuild(&evg->rules); | |
1476 | } | |
15aaf599 | 1477 | ovs_mutex_unlock(&ofproto_mutex); |
448c2fa8 EJ |
1478 | } |
1479 | } | |
1480 | ||
5bf0e941 | 1481 | if (p->ofproto_class->port_poll) { |
7436ed80 BP |
1482 | char *devname; |
1483 | ||
5bf0e941 BP |
1484 | while ((error = p->ofproto_class->port_poll(p, &devname)) != EAGAIN) { |
1485 | process_port_change(p, error, devname); | |
064af421 | 1486 | } |
e9e28be3 | 1487 | } |
031d8bff | 1488 | |
da4a6191 JS |
1489 | new_seq = seq_read(connectivity_seq_get()); |
1490 | if (new_seq != p->change_seq) { | |
1491 | struct sset devnames; | |
1492 | const char *devname; | |
1493 | struct ofport *ofport; | |
1494 | ||
1495 | /* Update OpenFlow port status for any port whose netdev has changed. | |
1496 | * | |
1497 | * Refreshing a given 'ofport' can cause an arbitrary ofport to be | |
1498 | * destroyed, so it's not safe to update ports directly from the | |
1499 | * HMAP_FOR_EACH loop, or even to use HMAP_FOR_EACH_SAFE. Instead, we | |
1500 | * need this two-phase approach. */ | |
1501 | sset_init(&devnames); | |
1502 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
61501798 AW |
1503 | uint64_t port_change_seq; |
1504 | ||
1505 | port_change_seq = netdev_get_change_seq(ofport->netdev); | |
1506 | if (ofport->change_seq != port_change_seq) { | |
1507 | ofport->change_seq = port_change_seq; | |
1508 | sset_add(&devnames, netdev_get_name(ofport->netdev)); | |
1509 | } | |
031d8bff | 1510 | } |
da4a6191 JS |
1511 | SSET_FOR_EACH (devname, &devnames) { |
1512 | update_port(p, devname); | |
1513 | } | |
1514 | sset_destroy(&devnames); | |
1515 | ||
1516 | p->change_seq = new_seq; | |
064af421 BP |
1517 | } |
1518 | ||
834fe5cb | 1519 | connmgr_run(p->connmgr, handle_openflow); |
064af421 | 1520 | |
5fcc0d00 BP |
1521 | return error; |
1522 | } | |
1523 | ||
064af421 BP |
1524 | void |
1525 | ofproto_wait(struct ofproto *p) | |
1526 | { | |
abe529af | 1527 | p->ofproto_class->wait(p); |
5bf0e941 BP |
1528 | if (p->ofproto_class->port_poll_wait) { |
1529 | p->ofproto_class->port_poll_wait(p); | |
e7934396 | 1530 | } |
da4a6191 | 1531 | seq_wait(connectivity_seq_get(), p->change_seq); |
834fe5cb | 1532 | connmgr_wait(p->connmgr); |
064af421 BP |
1533 | } |
1534 | ||
064af421 BP |
1535 | bool |
1536 | ofproto_is_alive(const struct ofproto *p) | |
1537 | { | |
19a87e36 | 1538 | return connmgr_has_controllers(p->connmgr); |
064af421 BP |
1539 | } |
1540 | ||
0d085684 BP |
1541 | /* Adds some memory usage statistics for 'ofproto' into 'usage', for use with |
1542 | * memory_report(). */ | |
1543 | void | |
1544 | ofproto_get_memory_usage(const struct ofproto *ofproto, struct simap *usage) | |
1545 | { | |
1546 | const struct oftable *table; | |
1547 | unsigned int n_rules; | |
1548 | ||
1549 | simap_increase(usage, "ports", hmap_count(&ofproto->ports)); | |
15aaf599 | 1550 | |
0d085684 BP |
1551 | n_rules = 0; |
1552 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { | |
1553 | n_rules += classifier_count(&table->cls); | |
1554 | } | |
1555 | simap_increase(usage, "rules", n_rules); | |
1556 | ||
1557 | if (ofproto->ofproto_class->get_memory_usage) { | |
1558 | ofproto->ofproto_class->get_memory_usage(ofproto, usage); | |
1559 | } | |
1560 | ||
1561 | connmgr_get_memory_usage(ofproto->connmgr, usage); | |
1562 | } | |
1563 | ||
1c030aa5 EJ |
1564 | void |
1565 | ofproto_type_get_memory_usage(const char *datapath_type, struct simap *usage) | |
1566 | { | |
1567 | const struct ofproto_class *class; | |
1568 | ||
1569 | datapath_type = ofproto_normalize_type(datapath_type); | |
1570 | class = ofproto_class_find__(datapath_type); | |
1571 | ||
1572 | if (class && class->type_get_memory_usage) { | |
1573 | class->type_get_memory_usage(datapath_type, usage); | |
1574 | } | |
1575 | } | |
1576 | ||
bffc0589 | 1577 | void |
2cdcb898 | 1578 | ofproto_get_ofproto_controller_info(const struct ofproto *ofproto, |
bffc0589 AE |
1579 | struct shash *info) |
1580 | { | |
19a87e36 | 1581 | connmgr_get_controller_info(ofproto->connmgr, info); |
bffc0589 AE |
1582 | } |
1583 | ||
1584 | void | |
1585 | ofproto_free_ofproto_controller_info(struct shash *info) | |
1586 | { | |
72ba2ed3 | 1587 | connmgr_free_controller_info(info); |
bffc0589 AE |
1588 | } |
1589 | ||
b5827b24 BP |
1590 | /* Makes a deep copy of 'old' into 'port'. */ |
1591 | void | |
1592 | ofproto_port_clone(struct ofproto_port *port, const struct ofproto_port *old) | |
1593 | { | |
1594 | port->name = xstrdup(old->name); | |
1595 | port->type = xstrdup(old->type); | |
1596 | port->ofp_port = old->ofp_port; | |
1597 | } | |
1598 | ||
1599 | /* Frees memory allocated to members of 'ofproto_port'. | |
3a6ccc8c | 1600 | * |
b5827b24 BP |
1601 | * Do not call this function on an ofproto_port obtained from |
1602 | * ofproto_port_dump_next(): that function retains ownership of the data in the | |
1603 | * ofproto_port. */ | |
1604 | void | |
1605 | ofproto_port_destroy(struct ofproto_port *ofproto_port) | |
1606 | { | |
1607 | free(ofproto_port->name); | |
1608 | free(ofproto_port->type); | |
1609 | } | |
1610 | ||
b5827b24 | 1611 | /* Initializes 'dump' to begin dumping the ports in an ofproto. |
3a6ccc8c | 1612 | * |
b5827b24 BP |
1613 | * This function provides no status indication. An error status for the entire |
1614 | * dump operation is provided when it is completed by calling | |
1615 | * ofproto_port_dump_done(). | |
1616 | */ | |
1617 | void | |
1618 | ofproto_port_dump_start(struct ofproto_port_dump *dump, | |
1619 | const struct ofproto *ofproto) | |
1620 | { | |
abe529af BP |
1621 | dump->ofproto = ofproto; |
1622 | dump->error = ofproto->ofproto_class->port_dump_start(ofproto, | |
1623 | &dump->state); | |
b5827b24 BP |
1624 | } |
1625 | ||
1626 | /* Attempts to retrieve another port from 'dump', which must have been created | |
1627 | * with ofproto_port_dump_start(). On success, stores a new ofproto_port into | |
1628 | * 'port' and returns true. On failure, returns false. | |
1629 | * | |
1630 | * Failure might indicate an actual error or merely that the last port has been | |
1631 | * dumped. An error status for the entire dump operation is provided when it | |
1632 | * is completed by calling ofproto_port_dump_done(). | |
1633 | * | |
1634 | * The ofproto owns the data stored in 'port'. It will remain valid until at | |
1635 | * least the next time 'dump' is passed to ofproto_port_dump_next() or | |
1636 | * ofproto_port_dump_done(). */ | |
1637 | bool | |
1638 | ofproto_port_dump_next(struct ofproto_port_dump *dump, | |
1639 | struct ofproto_port *port) | |
1640 | { | |
abe529af BP |
1641 | const struct ofproto *ofproto = dump->ofproto; |
1642 | ||
1643 | if (dump->error) { | |
1644 | return false; | |
1645 | } | |
b5827b24 | 1646 | |
abe529af BP |
1647 | dump->error = ofproto->ofproto_class->port_dump_next(ofproto, dump->state, |
1648 | port); | |
1649 | if (dump->error) { | |
1650 | ofproto->ofproto_class->port_dump_done(ofproto, dump->state); | |
1651 | return false; | |
b5827b24 | 1652 | } |
abe529af | 1653 | return true; |
b5827b24 BP |
1654 | } |
1655 | ||
1656 | /* Completes port table dump operation 'dump', which must have been created | |
1657 | * with ofproto_port_dump_start(). Returns 0 if the dump operation was | |
1658 | * error-free, otherwise a positive errno value describing the problem. */ | |
3a6ccc8c | 1659 | int |
b5827b24 | 1660 | ofproto_port_dump_done(struct ofproto_port_dump *dump) |
3a6ccc8c | 1661 | { |
abe529af BP |
1662 | const struct ofproto *ofproto = dump->ofproto; |
1663 | if (!dump->error) { | |
1664 | dump->error = ofproto->ofproto_class->port_dump_done(ofproto, | |
1665 | dump->state); | |
1666 | } | |
1667 | return dump->error == EOF ? 0 : dump->error; | |
b5827b24 BP |
1668 | } |
1669 | ||
0aeaabc8 JP |
1670 | /* Returns the type to pass to netdev_open() when a datapath of type |
1671 | * 'datapath_type' has a port of type 'port_type', for a few special | |
1672 | * cases when a netdev type differs from a port type. For example, when | |
1673 | * using the userspace datapath, a port of type "internal" needs to be | |
1674 | * opened as "tap". | |
1675 | * | |
1676 | * Returns either 'type' itself or a string literal, which must not be | |
1677 | * freed. */ | |
1678 | const char * | |
1679 | ofproto_port_open_type(const char *datapath_type, const char *port_type) | |
1680 | { | |
1681 | const struct ofproto_class *class; | |
1682 | ||
1683 | datapath_type = ofproto_normalize_type(datapath_type); | |
1684 | class = ofproto_class_find__(datapath_type); | |
1685 | if (!class) { | |
1686 | return port_type; | |
1687 | } | |
1688 | ||
1689 | return (class->port_open_type | |
1690 | ? class->port_open_type(datapath_type, port_type) | |
1691 | : port_type); | |
1692 | } | |
1693 | ||
81816a5f JP |
1694 | /* Attempts to add 'netdev' as a port on 'ofproto'. If 'ofp_portp' is |
1695 | * non-null and '*ofp_portp' is not OFPP_NONE, attempts to use that as | |
1696 | * the port's OpenFlow port number. | |
1697 | * | |
1698 | * If successful, returns 0 and sets '*ofp_portp' to the new port's | |
1699 | * OpenFlow port number (if 'ofp_portp' is non-null). On failure, | |
1700 | * returns a positive errno value and sets '*ofp_portp' to OFPP_NONE (if | |
1701 | * 'ofp_portp' is non-null). */ | |
b5827b24 BP |
1702 | int |
1703 | ofproto_port_add(struct ofproto *ofproto, struct netdev *netdev, | |
4e022ec0 | 1704 | ofp_port_t *ofp_portp) |
b5827b24 | 1705 | { |
4e022ec0 | 1706 | ofp_port_t ofp_port = ofp_portp ? *ofp_portp : OFPP_NONE; |
3a6ccc8c BP |
1707 | int error; |
1708 | ||
e1b1d06a | 1709 | error = ofproto->ofproto_class->port_add(ofproto, netdev); |
1fa24dea | 1710 | if (!error) { |
e1b1d06a JP |
1711 | const char *netdev_name = netdev_get_name(netdev); |
1712 | ||
4e022ec0 AW |
1713 | simap_put(&ofproto->ofp_requests, netdev_name, |
1714 | ofp_to_u16(ofp_port)); | |
e1b1d06a | 1715 | update_port(ofproto, netdev_name); |
1fa24dea | 1716 | } |
b5827b24 | 1717 | if (ofp_portp) { |
17f69db5 BP |
1718 | *ofp_portp = OFPP_NONE; |
1719 | if (!error) { | |
1720 | struct ofproto_port ofproto_port; | |
1721 | ||
1722 | error = ofproto_port_query_by_name(ofproto, | |
1723 | netdev_get_name(netdev), | |
1724 | &ofproto_port); | |
1725 | if (!error) { | |
1726 | *ofp_portp = ofproto_port.ofp_port; | |
1727 | ofproto_port_destroy(&ofproto_port); | |
1728 | } | |
1729 | } | |
3a6ccc8c BP |
1730 | } |
1731 | return error; | |
1732 | } | |
1733 | ||
b5827b24 BP |
1734 | /* Looks up a port named 'devname' in 'ofproto'. On success, returns 0 and |
1735 | * initializes '*port' appropriately; on failure, returns a positive errno | |
1736 | * value. | |
1737 | * | |
abe529af | 1738 | * The caller owns the data in 'ofproto_port' and must free it with |
b5827b24 BP |
1739 | * ofproto_port_destroy() when it is no longer needed. */ |
1740 | int | |
1741 | ofproto_port_query_by_name(const struct ofproto *ofproto, const char *devname, | |
1742 | struct ofproto_port *port) | |
a4e2e1f2 | 1743 | { |
b5827b24 BP |
1744 | int error; |
1745 | ||
abe529af BP |
1746 | error = ofproto->ofproto_class->port_query_by_name(ofproto, devname, port); |
1747 | if (error) { | |
1748 | memset(port, 0, sizeof *port); | |
b5827b24 BP |
1749 | } |
1750 | return error; | |
a4e2e1f2 EJ |
1751 | } |
1752 | ||
b5827b24 | 1753 | /* Deletes port number 'ofp_port' from the datapath for 'ofproto'. |
3a6ccc8c | 1754 | * Returns 0 if successful, otherwise a positive errno. */ |
064af421 | 1755 | int |
4e022ec0 | 1756 | ofproto_port_del(struct ofproto *ofproto, ofp_port_t ofp_port) |
064af421 | 1757 | { |
abe529af | 1758 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1264ec95 | 1759 | const char *name = ofport ? netdev_get_name(ofport->netdev) : "<unknown>"; |
e1b1d06a | 1760 | struct simap_node *ofp_request_node; |
3cf10406 | 1761 | int error; |
cdee00fd | 1762 | |
e1b1d06a JP |
1763 | ofp_request_node = simap_find(&ofproto->ofp_requests, name); |
1764 | if (ofp_request_node) { | |
1765 | simap_delete(&ofproto->ofp_requests, ofp_request_node); | |
1766 | } | |
1767 | ||
abe529af | 1768 | error = ofproto->ofproto_class->port_del(ofproto, ofp_port); |
892815f5 | 1769 | if (!error && ofport) { |
1264ec95 BP |
1770 | /* 'name' is the netdev's name and update_port() is going to close the |
1771 | * netdev. Just in case update_port() refers to 'name' after it | |
3a6ccc8c BP |
1772 | * destroys 'ofport', make a copy of it around the update_port() |
1773 | * call. */ | |
1774 | char *devname = xstrdup(name); | |
1775 | update_port(ofproto, devname); | |
1776 | free(devname); | |
3cf10406 BP |
1777 | } |
1778 | return error; | |
064af421 BP |
1779 | } |
1780 | ||
276f6518 SH |
1781 | static void |
1782 | flow_mod_init(struct ofputil_flow_mod *fm, | |
1783 | const struct match *match, unsigned int priority, | |
1784 | const struct ofpact *ofpacts, size_t ofpacts_len, | |
1785 | enum ofp_flow_mod_command command) | |
1786 | { | |
1787 | memset(fm, 0, sizeof *fm); | |
1788 | fm->match = *match; | |
1789 | fm->priority = priority; | |
1790 | fm->cookie = 0; | |
1791 | fm->new_cookie = 0; | |
1792 | fm->modify_cookie = false; | |
1793 | fm->table_id = 0; | |
1794 | fm->command = command; | |
1795 | fm->idle_timeout = 0; | |
1796 | fm->hard_timeout = 0; | |
1797 | fm->buffer_id = UINT32_MAX; | |
1798 | fm->out_port = OFPP_ANY; | |
1799 | fm->out_group = OFPG_ANY; | |
1800 | fm->flags = 0; | |
1801 | fm->ofpacts = CONST_CAST(struct ofpact *, ofpacts); | |
1802 | fm->ofpacts_len = ofpacts_len; | |
cc40d06b | 1803 | fm->delete_reason = OFPRR_DELETE; |
276f6518 SH |
1804 | } |
1805 | ||
97f63e57 BP |
1806 | static int |
1807 | simple_flow_mod(struct ofproto *ofproto, | |
1808 | const struct match *match, unsigned int priority, | |
1809 | const struct ofpact *ofpacts, size_t ofpacts_len, | |
1810 | enum ofp_flow_mod_command command) | |
1811 | { | |
1812 | struct ofputil_flow_mod fm; | |
1813 | ||
276f6518 | 1814 | flow_mod_init(&fm, match, priority, ofpacts, ofpacts_len, command); |
15aaf599 | 1815 | |
baae3d02 | 1816 | return handle_flow_mod__(ofproto, &fm, NULL); |
97f63e57 BP |
1817 | } |
1818 | ||
6c1491fb | 1819 | /* Adds a flow to OpenFlow flow table 0 in 'p' that matches 'cls_rule' and |
fa8b054f BP |
1820 | * performs the 'n_actions' actions in 'actions'. The new flow will not |
1821 | * timeout. | |
1822 | * | |
1823 | * If cls_rule->priority is in the range of priorities supported by OpenFlow | |
1824 | * (0...65535, inclusive) then the flow will be visible to OpenFlow | |
1825 | * controllers; otherwise, it will be hidden. | |
1826 | * | |
f25d0cf3 | 1827 | * The caller retains ownership of 'cls_rule' and 'ofpacts'. |
6c1491fb BP |
1828 | * |
1829 | * This is a helper function for in-band control and fail-open. */ | |
064af421 | 1830 | void |
81a76618 BP |
1831 | ofproto_add_flow(struct ofproto *ofproto, const struct match *match, |
1832 | unsigned int priority, | |
f25d0cf3 | 1833 | const struct ofpact *ofpacts, size_t ofpacts_len) |
15aaf599 | 1834 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 1835 | { |
7ee20df1 | 1836 | const struct rule *rule; |
6f00e29b | 1837 | bool must_add; |
7ee20df1 | 1838 | |
97f63e57 BP |
1839 | /* First do a cheap check whether the rule we're looking for already exists |
1840 | * with the actions that we want. If it does, then we're done. */ | |
81a76618 BP |
1841 | rule = rule_from_cls_rule(classifier_find_match_exactly( |
1842 | &ofproto->tables[0].cls, match, priority)); | |
6f00e29b | 1843 | if (rule) { |
dc723c44 | 1844 | const struct rule_actions *actions = rule_get_actions(rule); |
06a0f3e2 | 1845 | must_add = !ofpacts_equal(actions->ofpacts, actions->ofpacts_len, |
6f00e29b | 1846 | ofpacts, ofpacts_len); |
6f00e29b BP |
1847 | } else { |
1848 | must_add = true; | |
1849 | } | |
97f63e57 BP |
1850 | |
1851 | /* If there's no such rule or the rule doesn't have the actions we want, | |
1852 | * fall back to a executing a full flow mod. We can't optimize this at | |
1853 | * all because we didn't take enough locks above to ensure that the flow | |
1854 | * table didn't already change beneath us. */ | |
6f00e29b | 1855 | if (must_add) { |
97f63e57 BP |
1856 | simple_flow_mod(ofproto, match, priority, ofpacts, ofpacts_len, |
1857 | OFPFC_MODIFY_STRICT); | |
7ee20df1 | 1858 | } |
064af421 BP |
1859 | } |
1860 | ||
75a75043 | 1861 | /* Executes the flow modification specified in 'fm'. Returns 0 on success, an |
90bf1e07 BP |
1862 | * OFPERR_* OpenFlow error code on failure, or OFPROTO_POSTPONE if the |
1863 | * operation cannot be initiated now but may be retried later. | |
75a75043 | 1864 | * |
1b63b91e BP |
1865 | * This is a helper function for in-band control and fail-open and the "learn" |
1866 | * action. */ | |
75a75043 | 1867 | int |
e3b56933 | 1868 | ofproto_flow_mod(struct ofproto *ofproto, struct ofputil_flow_mod *fm) |
15aaf599 | 1869 | OVS_EXCLUDED(ofproto_mutex) |
75a75043 | 1870 | { |
b90d6ee5 JR |
1871 | /* Optimize for the most common case of a repeated learn action. |
1872 | * If an identical flow already exists we only need to update its | |
1873 | * 'modified' time. */ | |
1874 | if (fm->command == OFPFC_MODIFY_STRICT && fm->table_id != OFPTT_ALL | |
1875 | && !(fm->flags & OFPUTIL_FF_RESET_COUNTS)) { | |
1876 | struct oftable *table = &ofproto->tables[fm->table_id]; | |
b90d6ee5 JR |
1877 | struct rule *rule; |
1878 | bool done = false; | |
1879 | ||
0ef165ec EJ |
1880 | rule = rule_from_cls_rule(classifier_find_match_exactly(&table->cls, |
1881 | &fm->match, | |
1882 | fm->priority)); | |
b90d6ee5 JR |
1883 | if (rule) { |
1884 | /* Reading many of the rule fields and writing on 'modified' | |
1885 | * requires the rule->mutex. Also, rule->actions may change | |
1886 | * if rule->mutex is not held. */ | |
06a0f3e2 BP |
1887 | const struct rule_actions *actions; |
1888 | ||
b90d6ee5 | 1889 | ovs_mutex_lock(&rule->mutex); |
06a0f3e2 | 1890 | actions = rule_get_actions(rule); |
b90d6ee5 JR |
1891 | if (rule->idle_timeout == fm->idle_timeout |
1892 | && rule->hard_timeout == fm->hard_timeout | |
1893 | && rule->flags == (fm->flags & OFPUTIL_FF_STATE) | |
1894 | && (!fm->modify_cookie || (fm->new_cookie == rule->flow_cookie)) | |
1895 | && ofpacts_equal(fm->ofpacts, fm->ofpacts_len, | |
06a0f3e2 | 1896 | actions->ofpacts, actions->ofpacts_len)) { |
b90d6ee5 JR |
1897 | /* Rule already exists and need not change, only update the |
1898 | modified timestamp. */ | |
1899 | rule->modified = time_msec(); | |
1900 | done = true; | |
1901 | } | |
1902 | ovs_mutex_unlock(&rule->mutex); | |
1903 | } | |
b90d6ee5 JR |
1904 | |
1905 | if (done) { | |
1906 | return 0; | |
1907 | } | |
1908 | } | |
1909 | ||
baae3d02 | 1910 | return handle_flow_mod__(ofproto, fm, NULL); |
75a75043 BP |
1911 | } |
1912 | ||
6c1491fb BP |
1913 | /* Searches for a rule with matching criteria exactly equal to 'target' in |
1914 | * ofproto's table 0 and, if it finds one, deletes it. | |
1915 | * | |
1916 | * This is a helper function for in-band control and fail-open. */ | |
b20f4073 | 1917 | void |
81a76618 BP |
1918 | ofproto_delete_flow(struct ofproto *ofproto, |
1919 | const struct match *target, unsigned int priority) | |
15aaf599 | 1920 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 1921 | { |
8037acb4 | 1922 | struct classifier *cls = &ofproto->tables[0].cls; |
064af421 BP |
1923 | struct rule *rule; |
1924 | ||
97f63e57 BP |
1925 | /* First do a cheap check whether the rule we're looking for has already |
1926 | * been deleted. If so, then we're done. */ | |
8037acb4 BP |
1927 | rule = rule_from_cls_rule(classifier_find_match_exactly(cls, target, |
1928 | priority)); | |
834fe5cb BP |
1929 | if (!rule) { |
1930 | return; | |
bcf84111 | 1931 | } |
834fe5cb BP |
1932 | |
1933 | /* Execute a flow mod. We can't optimize this at all because we didn't | |
1934 | * take enough locks above to ensure that the flow table didn't already | |
1935 | * change beneath us. */ | |
1936 | simple_flow_mod(ofproto, target, priority, NULL, 0, OFPFC_DELETE_STRICT); | |
142e1f5c BP |
1937 | } |
1938 | ||
834fe5cb BP |
1939 | /* Delete all of the flows from all of ofproto's flow tables, then reintroduce |
1940 | * the flows required by in-band control and fail-open. */ | |
142e1f5c BP |
1941 | void |
1942 | ofproto_flush_flows(struct ofproto *ofproto) | |
1943 | { | |
7ee20df1 | 1944 | COVERAGE_INC(ofproto_flush); |
834fe5cb BP |
1945 | ofproto_flush__(ofproto); |
1946 | connmgr_flushed(ofproto->connmgr); | |
064af421 BP |
1947 | } |
1948 | \f | |
1949 | static void | |
1950 | reinit_ports(struct ofproto *p) | |
1951 | { | |
abe529af | 1952 | struct ofproto_port_dump dump; |
b3c01ed3 | 1953 | struct sset devnames; |
064af421 | 1954 | struct ofport *ofport; |
abe529af | 1955 | struct ofproto_port ofproto_port; |
b3c01ed3 | 1956 | const char *devname; |
064af421 | 1957 | |
898bf89d JP |
1958 | COVERAGE_INC(ofproto_reinit_ports); |
1959 | ||
b3c01ed3 | 1960 | sset_init(&devnames); |
4e8e4213 | 1961 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { |
1264ec95 | 1962 | sset_add(&devnames, netdev_get_name(ofport->netdev)); |
064af421 | 1963 | } |
abe529af BP |
1964 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { |
1965 | sset_add(&devnames, ofproto_port.name); | |
064af421 | 1966 | } |
064af421 | 1967 | |
b3c01ed3 BP |
1968 | SSET_FOR_EACH (devname, &devnames) { |
1969 | update_port(p, devname); | |
064af421 | 1970 | } |
b3c01ed3 | 1971 | sset_destroy(&devnames); |
064af421 BP |
1972 | } |
1973 | ||
4e022ec0 | 1974 | static ofp_port_t |
e1b1d06a JP |
1975 | alloc_ofp_port(struct ofproto *ofproto, const char *netdev_name) |
1976 | { | |
4e022ec0 | 1977 | uint16_t port_idx; |
e1b1d06a | 1978 | |
4e022ec0 | 1979 | port_idx = simap_get(&ofproto->ofp_requests, netdev_name); |
430dbb14 | 1980 | port_idx = port_idx ? port_idx : UINT16_MAX; |
4e022ec0 | 1981 | |
430dbb14 | 1982 | if (port_idx >= ofproto->max_ports |
fdcea803 GS |
1983 | || ofport_get_usage(ofproto, u16_to_ofp(port_idx)) == LLONG_MAX) { |
1984 | uint16_t lru_ofport = 0, end_port_no = ofproto->alloc_port_no; | |
1985 | long long int last_used_at, lru = LLONG_MAX; | |
e1b1d06a | 1986 | |
e1b1d06a JP |
1987 | /* Search for a free OpenFlow port number. We try not to |
1988 | * immediately reuse them to prevent problems due to old | |
484c8355 BP |
1989 | * flows. |
1990 | * | |
1991 | * We limit the automatically assigned port numbers to the lower half | |
1992 | * of the port range, to reserve the upper half for assignment by | |
1993 | * controllers. */ | |
6033d9d9 | 1994 | for (;;) { |
484c8355 | 1995 | if (++ofproto->alloc_port_no >= MIN(ofproto->max_ports, 32768)) { |
fdcea803 | 1996 | ofproto->alloc_port_no = 1; |
6033d9d9 | 1997 | } |
fdcea803 GS |
1998 | last_used_at = ofport_get_usage(ofproto, |
1999 | u16_to_ofp(ofproto->alloc_port_no)); | |
2000 | if (!last_used_at) { | |
430dbb14 | 2001 | port_idx = ofproto->alloc_port_no; |
6033d9d9 | 2002 | break; |
865b26a4 GS |
2003 | } else if ( last_used_at < time_msec() - 60*60*1000) { |
2004 | /* If the port with ofport 'ofproto->alloc_port_no' was deleted | |
2005 | * more than an hour ago, consider it usable. */ | |
2006 | ofport_remove_usage(ofproto, | |
2007 | u16_to_ofp(ofproto->alloc_port_no)); | |
2008 | port_idx = ofproto->alloc_port_no; | |
2009 | break; | |
fdcea803 GS |
2010 | } else if (last_used_at < lru) { |
2011 | lru = last_used_at; | |
2012 | lru_ofport = ofproto->alloc_port_no; | |
e1b1d06a | 2013 | } |
fdcea803 | 2014 | |
430dbb14 | 2015 | if (ofproto->alloc_port_no == end_port_no) { |
fdcea803 GS |
2016 | if (lru_ofport) { |
2017 | port_idx = lru_ofport; | |
2018 | break; | |
2019 | } | |
6033d9d9 | 2020 | return OFPP_NONE; |
e1b1d06a JP |
2021 | } |
2022 | } | |
2023 | } | |
fdcea803 | 2024 | ofport_set_usage(ofproto, u16_to_ofp(port_idx), LLONG_MAX); |
4e022ec0 | 2025 | return u16_to_ofp(port_idx); |
e1b1d06a JP |
2026 | } |
2027 | ||
2028 | static void | |
fdcea803 | 2029 | dealloc_ofp_port(struct ofproto *ofproto, ofp_port_t ofp_port) |
e1b1d06a | 2030 | { |
430dbb14 | 2031 | if (ofp_to_u16(ofp_port) < ofproto->max_ports) { |
fdcea803 | 2032 | ofport_set_usage(ofproto, ofp_port, time_msec()); |
40fa9417 | 2033 | } |
e1b1d06a JP |
2034 | } |
2035 | ||
fbfa2911 BP |
2036 | /* Opens and returns a netdev for 'ofproto_port' in 'ofproto', or a null |
2037 | * pointer if the netdev cannot be opened. On success, also fills in | |
d7d92203 | 2038 | * '*pp'. */ |
b33951b8 | 2039 | static struct netdev * |
e1b1d06a JP |
2040 | ofport_open(struct ofproto *ofproto, |
2041 | struct ofproto_port *ofproto_port, | |
9e1fd49b | 2042 | struct ofputil_phy_port *pp) |
064af421 BP |
2043 | { |
2044 | enum netdev_flags flags; | |
064af421 | 2045 | struct netdev *netdev; |
064af421 BP |
2046 | int error; |
2047 | ||
18812dff | 2048 | error = netdev_open(ofproto_port->name, ofproto_port->type, &netdev); |
064af421 | 2049 | if (error) { |
fbfa2911 | 2050 | VLOG_WARN_RL(&rl, "%s: ignoring port %s (%"PRIu16") because netdev %s " |
064af421 | 2051 | "cannot be opened (%s)", |
fbfa2911 | 2052 | ofproto->name, |
abe529af | 2053 | ofproto_port->name, ofproto_port->ofp_port, |
10a89ef0 | 2054 | ofproto_port->name, ovs_strerror(error)); |
064af421 BP |
2055 | return NULL; |
2056 | } | |
2057 | ||
e1b1d06a JP |
2058 | if (ofproto_port->ofp_port == OFPP_NONE) { |
2059 | if (!strcmp(ofproto->name, ofproto_port->name)) { | |
2060 | ofproto_port->ofp_port = OFPP_LOCAL; | |
2061 | } else { | |
2062 | ofproto_port->ofp_port = alloc_ofp_port(ofproto, | |
2063 | ofproto_port->name); | |
2064 | } | |
2065 | } | |
9e1fd49b BP |
2066 | pp->port_no = ofproto_port->ofp_port; |
2067 | netdev_get_etheraddr(netdev, pp->hw_addr); | |
2068 | ovs_strlcpy(pp->name, ofproto_port->name, sizeof pp->name); | |
064af421 | 2069 | netdev_get_flags(netdev, &flags); |
9e1fd49b BP |
2070 | pp->config = flags & NETDEV_UP ? 0 : OFPUTIL_PC_PORT_DOWN; |
2071 | pp->state = netdev_get_carrier(netdev) ? 0 : OFPUTIL_PS_LINK_DOWN; | |
2072 | netdev_get_features(netdev, &pp->curr, &pp->advertised, | |
2073 | &pp->supported, &pp->peer); | |
cd65125d BP |
2074 | pp->curr_speed = netdev_features_to_bps(pp->curr, 0) / 1000; |
2075 | pp->max_speed = netdev_features_to_bps(pp->supported, 0) / 1000; | |
118c4676 | 2076 | |
b33951b8 | 2077 | return netdev; |
064af421 BP |
2078 | } |
2079 | ||
b33951b8 | 2080 | /* Returns true if most fields of 'a' and 'b' are equal. Differences in name, |
d7d92203 | 2081 | * port number, and 'config' bits other than OFPUTIL_PC_PORT_DOWN are |
b33951b8 BP |
2082 | * disregarded. */ |
2083 | static bool | |
9e1fd49b BP |
2084 | ofport_equal(const struct ofputil_phy_port *a, |
2085 | const struct ofputil_phy_port *b) | |
064af421 | 2086 | { |
9e1fd49b | 2087 | return (eth_addr_equals(a->hw_addr, b->hw_addr) |
064af421 | 2088 | && a->state == b->state |
9e1fd49b | 2089 | && !((a->config ^ b->config) & OFPUTIL_PC_PORT_DOWN) |
064af421 BP |
2090 | && a->curr == b->curr |
2091 | && a->advertised == b->advertised | |
2092 | && a->supported == b->supported | |
9e1fd49b BP |
2093 | && a->peer == b->peer |
2094 | && a->curr_speed == b->curr_speed | |
2095 | && a->max_speed == b->max_speed); | |
064af421 BP |
2096 | } |
2097 | ||
b33951b8 BP |
2098 | /* Adds an ofport to 'p' initialized based on the given 'netdev' and 'opp'. |
2099 | * The caller must ensure that 'p' does not have a conflicting ofport (that is, | |
2100 | * one with the same name or port number). */ | |
064af421 | 2101 | static void |
b33951b8 | 2102 | ofport_install(struct ofproto *p, |
9e1fd49b | 2103 | struct netdev *netdev, const struct ofputil_phy_port *pp) |
064af421 | 2104 | { |
b33951b8 BP |
2105 | const char *netdev_name = netdev_get_name(netdev); |
2106 | struct ofport *ofport; | |
abe529af | 2107 | int error; |
72b06300 | 2108 | |
b33951b8 | 2109 | /* Create ofport. */ |
abe529af BP |
2110 | ofport = p->ofproto_class->port_alloc(); |
2111 | if (!ofport) { | |
2112 | error = ENOMEM; | |
2113 | goto error; | |
2114 | } | |
0f7d71a5 | 2115 | ofport->ofproto = p; |
b33951b8 | 2116 | ofport->netdev = netdev; |
61501798 | 2117 | ofport->change_seq = netdev_get_change_seq(netdev); |
9e1fd49b BP |
2118 | ofport->pp = *pp; |
2119 | ofport->ofp_port = pp->port_no; | |
65e0be10 | 2120 | ofport->created = time_msec(); |
b33951b8 BP |
2121 | |
2122 | /* Add port to 'p'. */ | |
4e022ec0 | 2123 | hmap_insert(&p->ports, &ofport->hmap_node, |
f9c0c3ec | 2124 | hash_ofp_port(ofport->ofp_port)); |
72b06300 | 2125 | shash_add(&p->port_by_name, netdev_name, ofport); |
abe529af | 2126 | |
ada3428f | 2127 | update_mtu(p, ofport); |
9197df76 | 2128 | |
abe529af BP |
2129 | /* Let the ofproto_class initialize its private data. */ |
2130 | error = p->ofproto_class->port_construct(ofport); | |
2131 | if (error) { | |
2132 | goto error; | |
2133 | } | |
2a6f78e0 | 2134 | connmgr_send_port_status(p->connmgr, NULL, pp, OFPPR_ADD); |
abe529af BP |
2135 | return; |
2136 | ||
2137 | error: | |
2138 | VLOG_WARN_RL(&rl, "%s: could not add port %s (%s)", | |
10a89ef0 | 2139 | p->name, netdev_name, ovs_strerror(error)); |
abe529af BP |
2140 | if (ofport) { |
2141 | ofport_destroy__(ofport); | |
2142 | } else { | |
2143 | netdev_close(netdev); | |
72b06300 | 2144 | } |
064af421 BP |
2145 | } |
2146 | ||
b33951b8 | 2147 | /* Removes 'ofport' from 'p' and destroys it. */ |
064af421 | 2148 | static void |
0f7d71a5 | 2149 | ofport_remove(struct ofport *ofport) |
064af421 | 2150 | { |
2a6f78e0 | 2151 | connmgr_send_port_status(ofport->ofproto->connmgr, NULL, &ofport->pp, |
fa066f01 | 2152 | OFPPR_DELETE); |
abe529af | 2153 | ofport_destroy(ofport); |
b33951b8 BP |
2154 | } |
2155 | ||
2156 | /* If 'ofproto' contains an ofport named 'name', removes it from 'ofproto' and | |
2157 | * destroys it. */ | |
2158 | static void | |
2159 | ofport_remove_with_name(struct ofproto *ofproto, const char *name) | |
2160 | { | |
2161 | struct ofport *port = shash_find_data(&ofproto->port_by_name, name); | |
2162 | if (port) { | |
0f7d71a5 | 2163 | ofport_remove(port); |
b33951b8 BP |
2164 | } |
2165 | } | |
2166 | ||
9e1fd49b | 2167 | /* Updates 'port' with new 'pp' description. |
b33951b8 BP |
2168 | * |
2169 | * Does not handle a name or port number change. The caller must implement | |
2170 | * such a change as a delete followed by an add. */ | |
2171 | static void | |
9e1fd49b | 2172 | ofport_modified(struct ofport *port, struct ofputil_phy_port *pp) |
b33951b8 | 2173 | { |
9e1fd49b BP |
2174 | memcpy(port->pp.hw_addr, pp->hw_addr, ETH_ADDR_LEN); |
2175 | port->pp.config = ((port->pp.config & ~OFPUTIL_PC_PORT_DOWN) | |
2176 | | (pp->config & OFPUTIL_PC_PORT_DOWN)); | |
53fd5c7c BP |
2177 | port->pp.state = ((port->pp.state & ~OFPUTIL_PS_LINK_DOWN) |
2178 | | (pp->state & OFPUTIL_PS_LINK_DOWN)); | |
9e1fd49b BP |
2179 | port->pp.curr = pp->curr; |
2180 | port->pp.advertised = pp->advertised; | |
2181 | port->pp.supported = pp->supported; | |
2182 | port->pp.peer = pp->peer; | |
2183 | port->pp.curr_speed = pp->curr_speed; | |
2184 | port->pp.max_speed = pp->max_speed; | |
b33951b8 | 2185 | |
2a6f78e0 BP |
2186 | connmgr_send_port_status(port->ofproto->connmgr, NULL, |
2187 | &port->pp, OFPPR_MODIFY); | |
064af421 BP |
2188 | } |
2189 | ||
5a2dfd47 JP |
2190 | /* Update OpenFlow 'state' in 'port' and notify controller. */ |
2191 | void | |
9e1fd49b | 2192 | ofproto_port_set_state(struct ofport *port, enum ofputil_port_state state) |
5a2dfd47 | 2193 | { |
9e1fd49b BP |
2194 | if (port->pp.state != state) { |
2195 | port->pp.state = state; | |
2a6f78e0 BP |
2196 | connmgr_send_port_status(port->ofproto->connmgr, NULL, |
2197 | &port->pp, OFPPR_MODIFY); | |
5a2dfd47 JP |
2198 | } |
2199 | } | |
2200 | ||
abe529af | 2201 | void |
4e022ec0 | 2202 | ofproto_port_unregister(struct ofproto *ofproto, ofp_port_t ofp_port) |
e7934396 | 2203 | { |
abe529af BP |
2204 | struct ofport *port = ofproto_get_port(ofproto, ofp_port); |
2205 | if (port) { | |
52a90c29 BP |
2206 | if (port->ofproto->ofproto_class->set_realdev) { |
2207 | port->ofproto->ofproto_class->set_realdev(port, 0, 0); | |
2208 | } | |
b308140a JP |
2209 | if (port->ofproto->ofproto_class->set_stp_port) { |
2210 | port->ofproto->ofproto_class->set_stp_port(port, NULL); | |
2211 | } | |
abe529af | 2212 | if (port->ofproto->ofproto_class->set_cfm) { |
a5610457 | 2213 | port->ofproto->ofproto_class->set_cfm(port, NULL); |
abe529af BP |
2214 | } |
2215 | if (port->ofproto->ofproto_class->bundle_remove) { | |
2216 | port->ofproto->ofproto_class->bundle_remove(port); | |
e7934396 BP |
2217 | } |
2218 | } | |
2219 | } | |
2220 | ||
2221 | static void | |
abe529af | 2222 | ofport_destroy__(struct ofport *port) |
e7934396 | 2223 | { |
abe529af BP |
2224 | struct ofproto *ofproto = port->ofproto; |
2225 | const char *name = netdev_get_name(port->netdev); | |
fa066f01 | 2226 | |
abe529af BP |
2227 | hmap_remove(&ofproto->ports, &port->hmap_node); |
2228 | shash_delete(&ofproto->port_by_name, | |
2229 | shash_find(&ofproto->port_by_name, name)); | |
fa066f01 | 2230 | |
abe529af BP |
2231 | netdev_close(port->netdev); |
2232 | ofproto->ofproto_class->port_dealloc(port); | |
e7934396 BP |
2233 | } |
2234 | ||
064af421 | 2235 | static void |
abe529af | 2236 | ofport_destroy(struct ofport *port) |
064af421 | 2237 | { |
fa066f01 | 2238 | if (port) { |
e1b1d06a | 2239 | dealloc_ofp_port(port->ofproto, port->ofp_port); |
abe529af BP |
2240 | port->ofproto->ofproto_class->port_destruct(port); |
2241 | ofport_destroy__(port); | |
2242 | } | |
064af421 BP |
2243 | } |
2244 | ||
abe529af | 2245 | struct ofport * |
4e022ec0 | 2246 | ofproto_get_port(const struct ofproto *ofproto, ofp_port_t ofp_port) |
ca0f572c BP |
2247 | { |
2248 | struct ofport *port; | |
2249 | ||
f9c0c3ec | 2250 | HMAP_FOR_EACH_IN_BUCKET (port, hmap_node, hash_ofp_port(ofp_port), |
4e022ec0 | 2251 | &ofproto->ports) { |
abe529af | 2252 | if (port->ofp_port == ofp_port) { |
ca0f572c BP |
2253 | return port; |
2254 | } | |
2255 | } | |
2256 | return NULL; | |
2257 | } | |
2258 | ||
fdcea803 GS |
2259 | static long long int |
2260 | ofport_get_usage(const struct ofproto *ofproto, ofp_port_t ofp_port) | |
2261 | { | |
2262 | struct ofport_usage *usage; | |
2263 | ||
2264 | HMAP_FOR_EACH_IN_BUCKET (usage, hmap_node, hash_ofp_port(ofp_port), | |
2265 | &ofproto->ofport_usage) { | |
2266 | if (usage->ofp_port == ofp_port) { | |
2267 | return usage->last_used; | |
2268 | } | |
2269 | } | |
2270 | return 0; | |
2271 | } | |
2272 | ||
2273 | static void | |
2274 | ofport_set_usage(struct ofproto *ofproto, ofp_port_t ofp_port, | |
2275 | long long int last_used) | |
2276 | { | |
2277 | struct ofport_usage *usage; | |
2278 | HMAP_FOR_EACH_IN_BUCKET (usage, hmap_node, hash_ofp_port(ofp_port), | |
2279 | &ofproto->ofport_usage) { | |
2280 | if (usage->ofp_port == ofp_port) { | |
2281 | usage->last_used = last_used; | |
2282 | return; | |
2283 | } | |
2284 | } | |
2285 | ovs_assert(last_used == LLONG_MAX); | |
2286 | ||
2287 | usage = xmalloc(sizeof *usage); | |
2288 | usage->ofp_port = ofp_port; | |
2289 | usage->last_used = last_used; | |
2290 | hmap_insert(&ofproto->ofport_usage, &usage->hmap_node, | |
2291 | hash_ofp_port(ofp_port)); | |
2292 | } | |
2293 | ||
865b26a4 GS |
2294 | static void |
2295 | ofport_remove_usage(struct ofproto *ofproto, ofp_port_t ofp_port) | |
2296 | { | |
2297 | struct ofport_usage *usage; | |
2298 | HMAP_FOR_EACH_IN_BUCKET (usage, hmap_node, hash_ofp_port(ofp_port), | |
2299 | &ofproto->ofport_usage) { | |
2300 | if (usage->ofp_port == ofp_port) { | |
2301 | hmap_remove(&ofproto->ofport_usage, &usage->hmap_node); | |
2302 | free(usage); | |
2303 | break; | |
2304 | } | |
2305 | } | |
2306 | } | |
2307 | ||
6527c598 PS |
2308 | int |
2309 | ofproto_port_get_stats(const struct ofport *port, struct netdev_stats *stats) | |
2310 | { | |
2311 | struct ofproto *ofproto = port->ofproto; | |
2312 | int error; | |
2313 | ||
2314 | if (ofproto->ofproto_class->port_get_stats) { | |
2315 | error = ofproto->ofproto_class->port_get_stats(port, stats); | |
2316 | } else { | |
2317 | error = EOPNOTSUPP; | |
2318 | } | |
2319 | ||
2320 | return error; | |
2321 | } | |
2322 | ||
064af421 | 2323 | static void |
b33951b8 | 2324 | update_port(struct ofproto *ofproto, const char *name) |
064af421 | 2325 | { |
abe529af | 2326 | struct ofproto_port ofproto_port; |
9e1fd49b | 2327 | struct ofputil_phy_port pp; |
b33951b8 BP |
2328 | struct netdev *netdev; |
2329 | struct ofport *port; | |
064af421 BP |
2330 | |
2331 | COVERAGE_INC(ofproto_update_port); | |
c874dc6d | 2332 | |
b33951b8 | 2333 | /* Fetch 'name''s location and properties from the datapath. */ |
abe529af | 2334 | netdev = (!ofproto_port_query_by_name(ofproto, name, &ofproto_port) |
fbfa2911 | 2335 | ? ofport_open(ofproto, &ofproto_port, &pp) |
b33951b8 | 2336 | : NULL); |
4e022ec0 | 2337 | |
b33951b8 | 2338 | if (netdev) { |
abe529af | 2339 | port = ofproto_get_port(ofproto, ofproto_port.ofp_port); |
b33951b8 | 2340 | if (port && !strcmp(netdev_get_name(port->netdev), name)) { |
e65942a0 BP |
2341 | struct netdev *old_netdev = port->netdev; |
2342 | ||
b33951b8 | 2343 | /* 'name' hasn't changed location. Any properties changed? */ |
9e1fd49b BP |
2344 | if (!ofport_equal(&port->pp, &pp)) { |
2345 | ofport_modified(port, &pp); | |
abe529af BP |
2346 | } |
2347 | ||
ada3428f | 2348 | update_mtu(ofproto, port); |
9197df76 | 2349 | |
e65942a0 BP |
2350 | /* Install the newly opened netdev in case it has changed. |
2351 | * Don't close the old netdev yet in case port_modified has to | |
2352 | * remove a retained reference to it.*/ | |
abe529af | 2353 | port->netdev = netdev; |
61501798 | 2354 | port->change_seq = netdev_get_change_seq(netdev); |
abe529af BP |
2355 | |
2356 | if (port->ofproto->ofproto_class->port_modified) { | |
2357 | port->ofproto->ofproto_class->port_modified(port); | |
b33951b8 | 2358 | } |
e65942a0 BP |
2359 | |
2360 | netdev_close(old_netdev); | |
b33951b8 BP |
2361 | } else { |
2362 | /* If 'port' is nonnull then its name differs from 'name' and thus | |
2363 | * we should delete it. If we think there's a port named 'name' | |
2364 | * then its port number must be wrong now so delete it too. */ | |
2365 | if (port) { | |
0f7d71a5 | 2366 | ofport_remove(port); |
b33951b8 BP |
2367 | } |
2368 | ofport_remove_with_name(ofproto, name); | |
9e1fd49b | 2369 | ofport_install(ofproto, netdev, &pp); |
c874dc6d | 2370 | } |
b33951b8 BP |
2371 | } else { |
2372 | /* Any port named 'name' is gone now. */ | |
2373 | ofport_remove_with_name(ofproto, name); | |
c874dc6d | 2374 | } |
abe529af | 2375 | ofproto_port_destroy(&ofproto_port); |
064af421 BP |
2376 | } |
2377 | ||
2378 | static int | |
2379 | init_ports(struct ofproto *p) | |
2380 | { | |
abe529af BP |
2381 | struct ofproto_port_dump dump; |
2382 | struct ofproto_port ofproto_port; | |
e1b1d06a | 2383 | struct shash_node *node, *next; |
abe529af BP |
2384 | |
2385 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { | |
e1b1d06a JP |
2386 | const char *name = ofproto_port.name; |
2387 | ||
2388 | if (shash_find(&p->port_by_name, name)) { | |
fbfa2911 | 2389 | VLOG_WARN_RL(&rl, "%s: ignoring duplicate device %s in datapath", |
e1b1d06a | 2390 | p->name, name); |
abe529af | 2391 | } else { |
9e1fd49b | 2392 | struct ofputil_phy_port pp; |
b33951b8 BP |
2393 | struct netdev *netdev; |
2394 | ||
e1b1d06a JP |
2395 | /* Check if an OpenFlow port number had been requested. */ |
2396 | node = shash_find(&init_ofp_ports, name); | |
2397 | if (node) { | |
2398 | const struct iface_hint *iface_hint = node->data; | |
4e022ec0 AW |
2399 | simap_put(&p->ofp_requests, name, |
2400 | ofp_to_u16(iface_hint->ofp_port)); | |
e1b1d06a JP |
2401 | } |
2402 | ||
fbfa2911 | 2403 | netdev = ofport_open(p, &ofproto_port, &pp); |
b33951b8 | 2404 | if (netdev) { |
9e1fd49b | 2405 | ofport_install(p, netdev, &pp); |
430dbb14 | 2406 | if (ofp_to_u16(ofproto_port.ofp_port) < p->max_ports) { |
7c35397c | 2407 | p->alloc_port_no = MAX(p->alloc_port_no, |
430dbb14 | 2408 | ofp_to_u16(ofproto_port.ofp_port)); |
7c35397c | 2409 | } |
064af421 BP |
2410 | } |
2411 | } | |
2412 | } | |
b0ec0f27 | 2413 | |
e1b1d06a | 2414 | SHASH_FOR_EACH_SAFE(node, next, &init_ofp_ports) { |
4f9e08a5 | 2415 | struct iface_hint *iface_hint = node->data; |
e1b1d06a JP |
2416 | |
2417 | if (!strcmp(iface_hint->br_name, p->name)) { | |
2418 | free(iface_hint->br_name); | |
2419 | free(iface_hint->br_type); | |
4f9e08a5 | 2420 | free(iface_hint); |
e1b1d06a JP |
2421 | shash_delete(&init_ofp_ports, node); |
2422 | } | |
2423 | } | |
2424 | ||
064af421 BP |
2425 | return 0; |
2426 | } | |
9197df76 JP |
2427 | |
2428 | /* Find the minimum MTU of all non-datapath devices attached to 'p'. | |
2429 | * Returns ETH_PAYLOAD_MAX or the minimum of the ports. */ | |
2430 | static int | |
2431 | find_min_mtu(struct ofproto *p) | |
2432 | { | |
2433 | struct ofport *ofport; | |
2434 | int mtu = 0; | |
2435 | ||
2436 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
2437 | struct netdev *netdev = ofport->netdev; | |
2438 | int dev_mtu; | |
2439 | ||
2440 | /* Skip any internal ports, since that's what we're trying to | |
2441 | * set. */ | |
2442 | if (!strcmp(netdev_get_type(netdev), "internal")) { | |
2443 | continue; | |
2444 | } | |
2445 | ||
2446 | if (netdev_get_mtu(netdev, &dev_mtu)) { | |
2447 | continue; | |
2448 | } | |
2449 | if (!mtu || dev_mtu < mtu) { | |
2450 | mtu = dev_mtu; | |
2451 | } | |
2452 | } | |
2453 | ||
2454 | return mtu ? mtu: ETH_PAYLOAD_MAX; | |
2455 | } | |
2456 | ||
ada3428f PS |
2457 | /* Update MTU of all datapath devices on 'p' to the minimum of the |
2458 | * non-datapath ports in event of 'port' added or changed. */ | |
9197df76 | 2459 | static void |
ada3428f | 2460 | update_mtu(struct ofproto *p, struct ofport *port) |
9197df76 JP |
2461 | { |
2462 | struct ofport *ofport; | |
ada3428f PS |
2463 | struct netdev *netdev = port->netdev; |
2464 | int dev_mtu, old_min; | |
2465 | ||
2466 | if (netdev_get_mtu(netdev, &dev_mtu)) { | |
2467 | port->mtu = 0; | |
2468 | return; | |
2469 | } | |
2470 | if (!strcmp(netdev_get_type(port->netdev), "internal")) { | |
2471 | if (dev_mtu > p->min_mtu) { | |
2472 | if (!netdev_set_mtu(port->netdev, p->min_mtu)) { | |
2473 | dev_mtu = p->min_mtu; | |
2474 | } | |
2475 | } | |
2476 | port->mtu = dev_mtu; | |
2477 | return; | |
2478 | } | |
2479 | ||
2480 | /* For non-internal port find new min mtu. */ | |
2481 | old_min = p->min_mtu; | |
2482 | port->mtu = dev_mtu; | |
2483 | p->min_mtu = find_min_mtu(p); | |
2484 | if (p->min_mtu == old_min) { | |
2485 | return; | |
2486 | } | |
9197df76 JP |
2487 | |
2488 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
2489 | struct netdev *netdev = ofport->netdev; | |
2490 | ||
2491 | if (!strcmp(netdev_get_type(netdev), "internal")) { | |
ada3428f PS |
2492 | if (!netdev_set_mtu(netdev, p->min_mtu)) { |
2493 | ofport->mtu = p->min_mtu; | |
2494 | } | |
9197df76 JP |
2495 | } |
2496 | } | |
2497 | } | |
064af421 | 2498 | \f |
f416c8d6 JR |
2499 | static void |
2500 | ofproto_rule_destroy__(struct rule *rule) | |
2501 | OVS_NO_THREAD_SAFETY_ANALYSIS | |
2502 | { | |
2503 | cls_rule_destroy(CONST_CAST(struct cls_rule *, &rule->cr)); | |
2504 | rule_actions_destroy(rule_get_actions(rule)); | |
2505 | ovs_mutex_destroy(&rule->mutex); | |
2506 | rule->ofproto->ofproto_class->rule_dealloc(rule); | |
2507 | } | |
2508 | ||
2509 | static void | |
2510 | rule_destroy_cb(struct rule *rule) | |
2511 | { | |
2512 | rule->ofproto->ofproto_class->rule_destruct(rule); | |
2513 | ofproto_rule_destroy__(rule); | |
2514 | } | |
2515 | ||
a2143702 BP |
2516 | void |
2517 | ofproto_rule_ref(struct rule *rule) | |
064af421 | 2518 | { |
1eae3d33 | 2519 | if (rule) { |
37bec3d3 | 2520 | ovs_refcount_ref(&rule->ref_count); |
a2143702 BP |
2521 | } |
2522 | } | |
2523 | ||
f5d16e55 JR |
2524 | bool |
2525 | ofproto_rule_try_ref(struct rule *rule) | |
2526 | { | |
2527 | if (rule) { | |
2528 | return ovs_refcount_try_ref_rcu(&rule->ref_count); | |
2529 | } | |
2530 | return false; | |
2531 | } | |
2532 | ||
f416c8d6 JR |
2533 | /* Decrements 'rule''s ref_count and schedules 'rule' to be destroyed if the |
2534 | * ref_count reaches 0. | |
2535 | * | |
2536 | * Use of RCU allows short term use (between RCU quiescent periods) without | |
2537 | * keeping a reference. A reference must be taken if the rule needs to | |
2538 | * stay around accross the RCU quiescent periods. */ | |
a2143702 BP |
2539 | void |
2540 | ofproto_rule_unref(struct rule *rule) | |
2541 | { | |
24f83812 | 2542 | if (rule && ovs_refcount_unref_relaxed(&rule->ref_count) == 1) { |
f416c8d6 | 2543 | ovsrcu_postpone(rule_destroy_cb, rule); |
1eae3d33 | 2544 | } |
064af421 BP |
2545 | } |
2546 | ||
809c7548 RW |
2547 | void |
2548 | ofproto_group_ref(struct ofgroup *group) | |
2549 | { | |
2550 | if (group) { | |
2551 | ovs_refcount_ref(&group->ref_count); | |
2552 | } | |
2553 | } | |
2554 | ||
2555 | void | |
2556 | ofproto_group_unref(struct ofgroup *group) | |
2557 | { | |
2558 | if (group && ovs_refcount_unref(&group->ref_count) == 1) { | |
2559 | group->ofproto->ofproto_class->group_destruct(group); | |
2560 | ofputil_bucket_list_destroy(&group->buckets); | |
2561 | group->ofproto->ofproto_class->group_dealloc(group); | |
2562 | } | |
2563 | } | |
2564 | ||
65efd2ab JR |
2565 | static uint32_t get_provider_meter_id(const struct ofproto *, |
2566 | uint32_t of_meter_id); | |
2567 | ||
dc723c44 JR |
2568 | /* Creates and returns a new 'struct rule_actions', whose actions are a copy |
2569 | * of from the 'ofpacts_len' bytes of 'ofpacts'. */ | |
2570 | const struct rule_actions * | |
4c7562c5 | 2571 | rule_actions_create(const struct ofpact *ofpacts, size_t ofpacts_len) |
6f00e29b BP |
2572 | { |
2573 | struct rule_actions *actions; | |
2574 | ||
dc723c44 | 2575 | actions = xmalloc(sizeof *actions + ofpacts_len); |
6f00e29b | 2576 | actions->ofpacts_len = ofpacts_len; |
4c7562c5 | 2577 | actions->has_meter = ofpacts_get_meter(ofpacts, ofpacts_len) != 0; |
dc723c44 | 2578 | memcpy(actions->ofpacts, ofpacts, ofpacts_len); |
65efd2ab | 2579 | |
35f48b8b BP |
2580 | actions->has_learn_with_delete = (next_learn_with_delete(actions, NULL) |
2581 | != NULL); | |
2582 | ||
6f00e29b BP |
2583 | return actions; |
2584 | } | |
2585 | ||
dc723c44 | 2586 | /* Free the actions after the RCU quiescent period is reached. */ |
6f00e29b | 2587 | void |
dc723c44 | 2588 | rule_actions_destroy(const struct rule_actions *actions) |
6f00e29b | 2589 | { |
06a0f3e2 | 2590 | if (actions) { |
dc723c44 | 2591 | ovsrcu_postpone(free, CONST_CAST(struct rule_actions *, actions)); |
6f00e29b BP |
2592 | } |
2593 | } | |
2594 | ||
bcf84111 | 2595 | /* Returns true if 'rule' has an OpenFlow OFPAT_OUTPUT or OFPAT_ENQUEUE action |
f25d0cf3 | 2596 | * that outputs to 'port' (output to OFPP_FLOOD and OFPP_ALL doesn't count). */ |
cdbdeeda | 2597 | bool |
4e022ec0 | 2598 | ofproto_rule_has_out_port(const struct rule *rule, ofp_port_t port) |
15aaf599 | 2599 | OVS_REQUIRES(ofproto_mutex) |
064af421 | 2600 | { |
06a0f3e2 BP |
2601 | if (port == OFPP_ANY) { |
2602 | return true; | |
2603 | } else { | |
2604 | const struct rule_actions *actions = rule_get_actions(rule); | |
2605 | return ofpacts_output_to_port(actions->ofpacts, | |
2606 | actions->ofpacts_len, port); | |
2607 | } | |
064af421 BP |
2608 | } |
2609 | ||
7395c052 | 2610 | /* Returns true if 'rule' has group and equals group_id. */ |
74e79b7c | 2611 | static bool |
7395c052 | 2612 | ofproto_rule_has_out_group(const struct rule *rule, uint32_t group_id) |
15aaf599 | 2613 | OVS_REQUIRES(ofproto_mutex) |
7395c052 | 2614 | { |
06a0f3e2 BP |
2615 | if (group_id == OFPG_ANY) { |
2616 | return true; | |
2617 | } else { | |
2618 | const struct rule_actions *actions = rule_get_actions(rule); | |
2619 | return ofpacts_output_to_group(actions->ofpacts, | |
2620 | actions->ofpacts_len, group_id); | |
2621 | } | |
7395c052 NZ |
2622 | } |
2623 | ||
35412852 BP |
2624 | static void |
2625 | rule_execute_destroy(struct rule_execute *e) | |
eedc0097 | 2626 | { |
35412852 BP |
2627 | ofproto_rule_unref(e->rule); |
2628 | list_remove(&e->list_node); | |
2629 | free(e); | |
2630 | } | |
eedc0097 | 2631 | |
35412852 BP |
2632 | /* Executes all "rule_execute" operations queued up in ofproto->rule_executes, |
2633 | * by passing them to the ofproto provider. */ | |
2634 | static void | |
2635 | run_rule_executes(struct ofproto *ofproto) | |
15aaf599 | 2636 | OVS_EXCLUDED(ofproto_mutex) |
35412852 BP |
2637 | { |
2638 | struct rule_execute *e, *next; | |
2639 | struct list executes; | |
2640 | ||
2641 | guarded_list_pop_all(&ofproto->rule_executes, &executes); | |
2642 | LIST_FOR_EACH_SAFE (e, next, list_node, &executes) { | |
35412852 BP |
2643 | struct flow flow; |
2644 | ||
b5e7e61a AZ |
2645 | flow_extract(e->packet, NULL, &flow); |
2646 | flow.in_port.ofp_port = e->in_port; | |
35412852 BP |
2647 | ofproto->ofproto_class->rule_execute(e->rule, &flow, e->packet); |
2648 | ||
2649 | rule_execute_destroy(e); | |
2650 | } | |
2651 | } | |
2652 | ||
2653 | /* Destroys and discards all "rule_execute" operations queued up in | |
2654 | * ofproto->rule_executes. */ | |
2655 | static void | |
2656 | destroy_rule_executes(struct ofproto *ofproto) | |
2657 | { | |
2658 | struct rule_execute *e, *next; | |
2659 | struct list executes; | |
2660 | ||
2661 | guarded_list_pop_all(&ofproto->rule_executes, &executes); | |
2662 | LIST_FOR_EACH_SAFE (e, next, list_node, &executes) { | |
2663 | ofpbuf_delete(e->packet); | |
2664 | rule_execute_destroy(e); | |
2665 | } | |
350a665f BP |
2666 | } |
2667 | ||
adcf00ba | 2668 | static bool |
834fe5cb | 2669 | rule_is_readonly(const struct rule *rule) |
5c67e4af | 2670 | { |
834fe5cb BP |
2671 | const struct oftable *table = &rule->ofproto->tables[rule->table_id]; |
2672 | return (table->flags & OFTABLE_READONLY) != 0; | |
5c67e4af | 2673 | } |
fa066f01 | 2674 | \f |
35f48b8b BP |
2675 | static uint32_t |
2676 | hash_learned_cookie(ovs_be64 cookie_, uint8_t table_id) | |
2677 | { | |
2678 | uint64_t cookie = (OVS_FORCE uint64_t) cookie_; | |
2679 | return hash_3words(cookie, cookie >> 32, table_id); | |
2680 | } | |
2681 | ||
2682 | static void | |
2683 | learned_cookies_update_one__(struct ofproto *ofproto, | |
2684 | const struct ofpact_learn *learn, | |
2685 | int delta, struct list *dead_cookies) | |
2686 | OVS_REQUIRES(ofproto_mutex) | |
2687 | { | |
2688 | uint32_t hash = hash_learned_cookie(learn->cookie, learn->table_id); | |
2689 | struct learned_cookie *c; | |
2690 | ||
2691 | HMAP_FOR_EACH_WITH_HASH (c, u.hmap_node, hash, &ofproto->learned_cookies) { | |
2692 | if (c->cookie == learn->cookie && c->table_id == learn->table_id) { | |
2693 | c->n += delta; | |
2694 | ovs_assert(c->n >= 0); | |
2695 | ||
2696 | if (!c->n) { | |
2697 | hmap_remove(&ofproto->learned_cookies, &c->u.hmap_node); | |
2698 | list_push_back(dead_cookies, &c->u.list_node); | |
2699 | } | |
2700 | ||
2701 | return; | |
2702 | } | |
2703 | } | |
2704 | ||
2705 | ovs_assert(delta > 0); | |
2706 | c = xmalloc(sizeof *c); | |
2707 | hmap_insert(&ofproto->learned_cookies, &c->u.hmap_node, hash); | |
2708 | c->cookie = learn->cookie; | |
2709 | c->table_id = learn->table_id; | |
2710 | c->n = delta; | |
2711 | } | |
2712 | ||
2713 | static const struct ofpact_learn * | |
2714 | next_learn_with_delete(const struct rule_actions *actions, | |
2715 | const struct ofpact_learn *start) | |
2716 | { | |
2717 | const struct ofpact *pos; | |
2718 | ||
2719 | for (pos = start ? ofpact_next(&start->ofpact) : actions->ofpacts; | |
2720 | pos < ofpact_end(actions->ofpacts, actions->ofpacts_len); | |
2721 | pos = ofpact_next(pos)) { | |
2722 | if (pos->type == OFPACT_LEARN) { | |
2723 | const struct ofpact_learn *learn = ofpact_get_LEARN(pos); | |
2724 | if (learn->flags & NX_LEARN_F_DELETE_LEARNED) { | |
2725 | return learn; | |
2726 | } | |
2727 | } | |
2728 | } | |
2729 | ||
2730 | return NULL; | |
2731 | } | |
2732 | ||
2733 | static void | |
2734 | learned_cookies_update__(struct ofproto *ofproto, | |
2735 | const struct rule_actions *actions, | |
2736 | int delta, struct list *dead_cookies) | |
2737 | OVS_REQUIRES(ofproto_mutex) | |
2738 | { | |
2739 | if (actions->has_learn_with_delete) { | |
2740 | const struct ofpact_learn *learn; | |
2741 | ||
2742 | for (learn = next_learn_with_delete(actions, NULL); learn; | |
2743 | learn = next_learn_with_delete(actions, learn)) { | |
2744 | learned_cookies_update_one__(ofproto, learn, delta, dead_cookies); | |
2745 | } | |
2746 | } | |
2747 | } | |
2748 | ||
2749 | static void | |
2750 | learned_cookies_inc(struct ofproto *ofproto, | |
2751 | const struct rule_actions *actions) | |
2752 | OVS_REQUIRES(ofproto_mutex) | |
2753 | { | |
2754 | learned_cookies_update__(ofproto, actions, +1, NULL); | |
2755 | } | |
2756 | ||
2757 | static void | |
2758 | learned_cookies_dec(struct ofproto *ofproto, | |
2759 | const struct rule_actions *actions, | |
2760 | struct list *dead_cookies) | |
2761 | OVS_REQUIRES(ofproto_mutex) | |
2762 | { | |
2763 | learned_cookies_update__(ofproto, actions, -1, dead_cookies); | |
2764 | } | |
2765 | ||
2766 | static void | |
2767 | learned_cookies_flush(struct ofproto *ofproto, struct list *dead_cookies) | |
2768 | OVS_REQUIRES(ofproto_mutex) | |
2769 | { | |
2770 | struct learned_cookie *c, *next; | |
2771 | ||
2772 | LIST_FOR_EACH_SAFE (c, next, u.list_node, dead_cookies) { | |
2773 | struct rule_criteria criteria; | |
2774 | struct rule_collection rules; | |
2775 | struct match match; | |
2776 | ||
2777 | match_init_catchall(&match); | |
2778 | rule_criteria_init(&criteria, c->table_id, &match, 0, | |
2779 | c->cookie, OVS_BE64_MAX, OFPP_ANY, OFPG_ANY); | |
2780 | rule_criteria_require_rw(&criteria, false); | |
2781 | collect_rules_loose(ofproto, &criteria, &rules); | |
2782 | delete_flows__(&rules, OFPRR_DELETE, NULL); | |
2783 | rule_criteria_destroy(&criteria); | |
2784 | rule_collection_destroy(&rules); | |
2785 | ||
2786 | list_remove(&c->u.list_node); | |
2787 | free(c); | |
2788 | } | |
2789 | } | |
2790 | \f | |
90bf1e07 | 2791 | static enum ofperr |
d1e2cf21 | 2792 | handle_echo_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 2793 | { |
b0421aa2 | 2794 | ofconn_send_reply(ofconn, make_echo_reply(oh)); |
064af421 | 2795 | return 0; |
064af421 BP |
2796 | } |
2797 | ||
90bf1e07 | 2798 | static enum ofperr |
d1e2cf21 | 2799 | handle_features_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 2800 | { |
64ff1d96 | 2801 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
9e1fd49b | 2802 | struct ofputil_switch_features features; |
064af421 | 2803 | struct ofport *port; |
6c1491fb | 2804 | bool arp_match_ip; |
9e1fd49b | 2805 | struct ofpbuf *b; |
064af421 | 2806 | |
9e1fd49b BP |
2807 | ofproto->ofproto_class->get_features(ofproto, &arp_match_ip, |
2808 | &features.actions); | |
cb22974d | 2809 | ovs_assert(features.actions & OFPUTIL_A_OUTPUT); /* sanity check */ |
064af421 | 2810 | |
9e1fd49b BP |
2811 | features.datapath_id = ofproto->datapath_id; |
2812 | features.n_buffers = pktbuf_capacity(); | |
adcf00ba | 2813 | features.n_tables = ofproto_get_n_visible_tables(ofproto); |
9e1fd49b BP |
2814 | features.capabilities = (OFPUTIL_C_FLOW_STATS | OFPUTIL_C_TABLE_STATS | |
2815 | OFPUTIL_C_PORT_STATS | OFPUTIL_C_QUEUE_STATS); | |
6c1491fb | 2816 | if (arp_match_ip) { |
9e1fd49b | 2817 | features.capabilities |= OFPUTIL_C_ARP_MATCH_IP; |
6c1491fb | 2818 | } |
2e1ae200 JR |
2819 | /* FIXME: Fill in proper features.auxiliary_id for auxiliary connections */ |
2820 | features.auxiliary_id = 0; | |
9e1fd49b BP |
2821 | b = ofputil_encode_switch_features(&features, ofconn_get_protocol(ofconn), |
2822 | oh->xid); | |
64ff1d96 | 2823 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
9e1fd49b | 2824 | ofputil_put_switch_features_port(&port->pp, b); |
064af421 | 2825 | } |
064af421 | 2826 | |
9e1fd49b | 2827 | ofconn_send_reply(ofconn, b); |
064af421 BP |
2828 | return 0; |
2829 | } | |
064af421 | 2830 | |
90bf1e07 | 2831 | static enum ofperr |
d1e2cf21 | 2832 | handle_get_config_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 2833 | { |
64ff1d96 | 2834 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
064af421 | 2835 | struct ofp_switch_config *osc; |
f0fd1a17 | 2836 | enum ofp_config_flags flags; |
7257b535 | 2837 | struct ofpbuf *buf; |
959a2ecd | 2838 | |
064af421 | 2839 | /* Send reply. */ |
982697a4 BP |
2840 | buf = ofpraw_alloc_reply(OFPRAW_OFPT_GET_CONFIG_REPLY, oh, 0); |
2841 | osc = ofpbuf_put_uninit(buf, sizeof *osc); | |
f0fd1a17 | 2842 | flags = ofproto->frag_handling; |
2e1ae200 JR |
2843 | /* OFPC_INVALID_TTL_TO_CONTROLLER is deprecated in OF 1.3 */ |
2844 | if (oh->version < OFP13_VERSION | |
2845 | && ofconn_get_invalid_ttl_to_controller(ofconn)) { | |
f0fd1a17 PS |
2846 | flags |= OFPC_INVALID_TTL_TO_CONTROLLER; |
2847 | } | |
2848 | osc->flags = htons(flags); | |
810605a2 | 2849 | osc->miss_send_len = htons(ofconn_get_miss_send_len(ofconn)); |
b0421aa2 | 2850 | ofconn_send_reply(ofconn, buf); |
2d70a31a | 2851 | |
064af421 BP |
2852 | return 0; |
2853 | } | |
064af421 | 2854 | |
90bf1e07 | 2855 | static enum ofperr |
982697a4 | 2856 | handle_set_config(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 2857 | { |
982697a4 | 2858 | const struct ofp_switch_config *osc = ofpmsg_body(oh); |
64ff1d96 | 2859 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
d1e2cf21 | 2860 | uint16_t flags = ntohs(osc->flags); |
2d70a31a | 2861 | |
7257b535 | 2862 | if (ofconn_get_type(ofconn) != OFCONN_PRIMARY |
f4f1ea7e | 2863 | || ofconn_get_role(ofconn) != OFPCR12_ROLE_SLAVE) { |
7257b535 BP |
2864 | enum ofp_config_flags cur = ofproto->frag_handling; |
2865 | enum ofp_config_flags next = flags & OFPC_FRAG_MASK; | |
2866 | ||
cb22974d | 2867 | ovs_assert((cur & OFPC_FRAG_MASK) == cur); |
7257b535 BP |
2868 | if (cur != next) { |
2869 | if (ofproto->ofproto_class->set_frag_handling(ofproto, next)) { | |
2870 | ofproto->frag_handling = next; | |
2871 | } else { | |
2872 | VLOG_WARN_RL(&rl, "%s: unsupported fragment handling mode %s", | |
2873 | ofproto->name, | |
2874 | ofputil_frag_handling_to_string(next)); | |
2875 | } | |
064af421 BP |
2876 | } |
2877 | } | |
2e1ae200 | 2878 | /* OFPC_INVALID_TTL_TO_CONTROLLER is deprecated in OF 1.3 */ |
f0fd1a17 | 2879 | ofconn_set_invalid_ttl_to_controller(ofconn, |
2e1ae200 JR |
2880 | (oh->version < OFP13_VERSION |
2881 | && flags & OFPC_INVALID_TTL_TO_CONTROLLER)); | |
ebe482fd | 2882 | |
810605a2 | 2883 | ofconn_set_miss_send_len(ofconn, ntohs(osc->miss_send_len)); |
0ad9b732 | 2884 | |
064af421 | 2885 | return 0; |
064af421 BP |
2886 | } |
2887 | ||
9deba63b | 2888 | /* Checks whether 'ofconn' is a slave controller. If so, returns an OpenFlow |
90bf1e07 BP |
2889 | * error message code for the caller to propagate upward. Otherwise, returns |
2890 | * 0. | |
2891 | * | |
2892 | * The log message mentions 'msg_type'. */ | |
2893 | static enum ofperr | |
2894 | reject_slave_controller(struct ofconn *ofconn) | |
9deba63b | 2895 | { |
1ce0a5fa | 2896 | if (ofconn_get_type(ofconn) == OFCONN_PRIMARY |
f4f1ea7e | 2897 | && ofconn_get_role(ofconn) == OFPCR12_ROLE_SLAVE) { |
90bf1e07 | 2898 | return OFPERR_OFPBRC_EPERM; |
9deba63b BP |
2899 | } else { |
2900 | return 0; | |
2901 | } | |
2902 | } | |
2903 | ||
7e9f8266 BP |
2904 | /* Checks that the 'ofpacts_len' bytes of action in 'ofpacts' are appropriate |
2905 | * for 'ofproto': | |
2906 | * | |
2907 | * - If they use a meter, then 'ofproto' has that meter configured. | |
2908 | * | |
2909 | * - If they use any groups, then 'ofproto' has that group configured. | |
2910 | * | |
2911 | * Returns 0 if successful, otherwise an OpenFlow error. */ | |
9cae45dc JR |
2912 | static enum ofperr |
2913 | ofproto_check_ofpacts(struct ofproto *ofproto, | |
7e9f8266 | 2914 | const struct ofpact ofpacts[], size_t ofpacts_len) |
9cae45dc | 2915 | { |
84d68566 | 2916 | const struct ofpact *a; |
9cae45dc JR |
2917 | uint32_t mid; |
2918 | ||
7e9f8266 BP |
2919 | mid = ofpacts_get_meter(ofpacts, ofpacts_len); |
2920 | if (mid && get_provider_meter_id(ofproto, mid) == UINT32_MAX) { | |
2921 | return OFPERR_OFPMMFC_INVALID_METER; | |
9cae45dc JR |
2922 | } |
2923 | ||
84d68566 | 2924 | OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) { |
7e9f8266 BP |
2925 | if (a->type == OFPACT_GROUP |
2926 | && !ofproto_group_exists(ofproto, ofpact_get_GROUP(a)->group_id)) { | |
2927 | return OFPERR_OFPBAC_BAD_OUT_GROUP; | |
84d68566 SH |
2928 | } |
2929 | } | |
2930 | ||
9cae45dc JR |
2931 | return 0; |
2932 | } | |
2933 | ||
90bf1e07 | 2934 | static enum ofperr |
982697a4 | 2935 | handle_packet_out(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 2936 | { |
64ff1d96 | 2937 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
c6a93eb7 BP |
2938 | struct ofputil_packet_out po; |
2939 | struct ofpbuf *payload; | |
f25d0cf3 BP |
2940 | uint64_t ofpacts_stub[1024 / 8]; |
2941 | struct ofpbuf ofpacts; | |
ae412e7d | 2942 | struct flow flow; |
90bf1e07 | 2943 | enum ofperr error; |
064af421 | 2944 | |
ac51afaf BP |
2945 | COVERAGE_INC(ofproto_packet_out); |
2946 | ||
76589937 | 2947 | error = reject_slave_controller(ofconn); |
9deba63b | 2948 | if (error) { |
f25d0cf3 | 2949 | goto exit; |
9deba63b BP |
2950 | } |
2951 | ||
c6a93eb7 | 2952 | /* Decode message. */ |
f25d0cf3 | 2953 | ofpbuf_use_stub(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); |
982697a4 | 2954 | error = ofputil_decode_packet_out(&po, oh, &ofpacts); |
064af421 | 2955 | if (error) { |
f25d0cf3 | 2956 | goto exit_free_ofpacts; |
064af421 | 2957 | } |
430dbb14 | 2958 | if (ofp_to_u16(po.in_port) >= p->max_ports |
4e022ec0 | 2959 | && ofp_to_u16(po.in_port) < ofp_to_u16(OFPP_MAX)) { |
2e1bfcb6 | 2960 | error = OFPERR_OFPBRC_BAD_PORT; |
91858960 BP |
2961 | goto exit_free_ofpacts; |
2962 | } | |
064af421 | 2963 | |
ac51afaf | 2964 | /* Get payload. */ |
c6a93eb7 BP |
2965 | if (po.buffer_id != UINT32_MAX) { |
2966 | error = ofconn_pktbuf_retrieve(ofconn, po.buffer_id, &payload, NULL); | |
2967 | if (error || !payload) { | |
f25d0cf3 | 2968 | goto exit_free_ofpacts; |
064af421 | 2969 | } |
064af421 | 2970 | } else { |
bb622f82 BP |
2971 | /* Ensure that the L3 header is 32-bit aligned. */ |
2972 | payload = ofpbuf_clone_data_with_headroom(po.packet, po.packet_len, 2); | |
e1154f71 BP |
2973 | } |
2974 | ||
548de4dd | 2975 | /* Verify actions against packet, then send packet if successful. */ |
b5e7e61a AZ |
2976 | flow_extract(payload, NULL, &flow); |
2977 | flow.in_port.ofp_port = po.in_port; | |
7e9f8266 | 2978 | error = ofproto_check_ofpacts(p, po.ofpacts, po.ofpacts_len); |
548de4dd BP |
2979 | if (!error) { |
2980 | error = p->ofproto_class->packet_out(p, payload, &flow, | |
2981 | po.ofpacts, po.ofpacts_len); | |
2982 | } | |
c6a93eb7 | 2983 | ofpbuf_delete(payload); |
abe529af | 2984 | |
f25d0cf3 BP |
2985 | exit_free_ofpacts: |
2986 | ofpbuf_uninit(&ofpacts); | |
2987 | exit: | |
abe529af | 2988 | return error; |
064af421 BP |
2989 | } |
2990 | ||
2991 | static void | |
2a6f78e0 | 2992 | update_port_config(struct ofconn *ofconn, struct ofport *port, |
9e1fd49b BP |
2993 | enum ofputil_port_config config, |
2994 | enum ofputil_port_config mask) | |
064af421 | 2995 | { |
2a6f78e0 | 2996 | enum ofputil_port_config toggle = (config ^ port->pp.config) & mask; |
abe529af | 2997 | |
2a6f78e0 BP |
2998 | if (toggle & OFPUTIL_PC_PORT_DOWN |
2999 | && (config & OFPUTIL_PC_PORT_DOWN | |
3000 | ? netdev_turn_flags_off(port->netdev, NETDEV_UP, NULL) | |
3001 | : netdev_turn_flags_on(port->netdev, NETDEV_UP, NULL))) { | |
3002 | /* We tried to bring the port up or down, but it failed, so don't | |
3003 | * update the "down" bit. */ | |
9e1fd49b | 3004 | toggle &= ~OFPUTIL_PC_PORT_DOWN; |
064af421 | 3005 | } |
abe529af | 3006 | |
2a6f78e0 BP |
3007 | if (toggle) { |
3008 | enum ofputil_port_config old_config = port->pp.config; | |
3009 | port->pp.config ^= toggle; | |
abe529af | 3010 | port->ofproto->ofproto_class->port_reconfigured(port, old_config); |
2a6f78e0 BP |
3011 | connmgr_send_port_status(port->ofproto->connmgr, ofconn, &port->pp, |
3012 | OFPPR_MODIFY); | |
064af421 BP |
3013 | } |
3014 | } | |
3015 | ||
90bf1e07 | 3016 | static enum ofperr |
d1e2cf21 | 3017 | handle_port_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3018 | { |
64ff1d96 | 3019 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
9e1fd49b | 3020 | struct ofputil_port_mod pm; |
064af421 | 3021 | struct ofport *port; |
9e1fd49b | 3022 | enum ofperr error; |
064af421 | 3023 | |
76589937 | 3024 | error = reject_slave_controller(ofconn); |
9deba63b BP |
3025 | if (error) { |
3026 | return error; | |
3027 | } | |
064af421 | 3028 | |
18cc69d9 | 3029 | error = ofputil_decode_port_mod(oh, &pm, false); |
9e1fd49b BP |
3030 | if (error) { |
3031 | return error; | |
3032 | } | |
3033 | ||
3034 | port = ofproto_get_port(p, pm.port_no); | |
064af421 | 3035 | if (!port) { |
90bf1e07 | 3036 | return OFPERR_OFPPMFC_BAD_PORT; |
9e1fd49b | 3037 | } else if (!eth_addr_equals(port->pp.hw_addr, pm.hw_addr)) { |
90bf1e07 | 3038 | return OFPERR_OFPPMFC_BAD_HW_ADDR; |
064af421 | 3039 | } else { |
2a6f78e0 | 3040 | update_port_config(ofconn, port, pm.config, pm.mask); |
9e1fd49b BP |
3041 | if (pm.advertise) { |
3042 | netdev_set_advertisements(port->netdev, pm.advertise); | |
064af421 BP |
3043 | } |
3044 | } | |
3045 | return 0; | |
3046 | } | |
3047 | ||
90bf1e07 | 3048 | static enum ofperr |
3269c562 | 3049 | handle_desc_stats_request(struct ofconn *ofconn, |
982697a4 | 3050 | const struct ofp_header *request) |
064af421 | 3051 | { |
061bfea4 BP |
3052 | static const char *default_mfr_desc = "Nicira, Inc."; |
3053 | static const char *default_hw_desc = "Open vSwitch"; | |
3054 | static const char *default_sw_desc = VERSION; | |
3055 | static const char *default_serial_desc = "None"; | |
3056 | static const char *default_dp_desc = "None"; | |
3057 | ||
64ff1d96 | 3058 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 BP |
3059 | struct ofp_desc_stats *ods; |
3060 | struct ofpbuf *msg; | |
3061 | ||
982697a4 BP |
3062 | msg = ofpraw_alloc_stats_reply(request, 0); |
3063 | ods = ofpbuf_put_zeros(msg, sizeof *ods); | |
061bfea4 BP |
3064 | ovs_strlcpy(ods->mfr_desc, p->mfr_desc ? p->mfr_desc : default_mfr_desc, |
3065 | sizeof ods->mfr_desc); | |
3066 | ovs_strlcpy(ods->hw_desc, p->hw_desc ? p->hw_desc : default_hw_desc, | |
3067 | sizeof ods->hw_desc); | |
3068 | ovs_strlcpy(ods->sw_desc, p->sw_desc ? p->sw_desc : default_sw_desc, | |
3069 | sizeof ods->sw_desc); | |
3070 | ovs_strlcpy(ods->serial_num, | |
3071 | p->serial_desc ? p->serial_desc : default_serial_desc, | |
3072 | sizeof ods->serial_num); | |
3073 | ovs_strlcpy(ods->dp_desc, p->dp_desc ? p->dp_desc : default_dp_desc, | |
3074 | sizeof ods->dp_desc); | |
b0421aa2 | 3075 | ofconn_send_reply(ofconn, msg); |
064af421 BP |
3076 | |
3077 | return 0; | |
3078 | } | |
3079 | ||
90bf1e07 | 3080 | static enum ofperr |
3269c562 | 3081 | handle_table_stats_request(struct ofconn *ofconn, |
982697a4 | 3082 | const struct ofp_header *request) |
064af421 | 3083 | { |
64ff1d96 | 3084 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
307975da | 3085 | struct ofp12_table_stats *ots; |
064af421 | 3086 | struct ofpbuf *msg; |
c2f0373a | 3087 | int n_tables; |
6c1491fb | 3088 | size_t i; |
064af421 | 3089 | |
307975da SH |
3090 | /* Set up default values. |
3091 | * | |
3092 | * ofp12_table_stats is used as a generic structure as | |
3093 | * it is able to hold all the fields for ofp10_table_stats | |
3094 | * and ofp11_table_stats (and of course itself). | |
3095 | */ | |
3096 | ots = xcalloc(p->n_tables, sizeof *ots); | |
6c1491fb BP |
3097 | for (i = 0; i < p->n_tables; i++) { |
3098 | ots[i].table_id = i; | |
34582733 | 3099 | sprintf(ots[i].name, "table%"PRIuSIZE, i); |
6240624b BP |
3100 | ots[i].match = htonll(OFPXMT13_MASK); |
3101 | ots[i].wildcards = htonll(OFPXMT13_MASK); | |
e78b61f6 BP |
3102 | ots[i].write_actions = htonl(OFPAT11_OUTPUT); |
3103 | ots[i].apply_actions = htonl(OFPAT11_OUTPUT); | |
6240624b BP |
3104 | ots[i].write_setfields = htonll(OFPXMT13_MASK); |
3105 | ots[i].apply_setfields = htonll(OFPXMT13_MASK); | |
b8266395 BP |
3106 | ots[i].metadata_match = OVS_BE64_MAX; |
3107 | ots[i].metadata_write = OVS_BE64_MAX; | |
307975da SH |
3108 | ots[i].instructions = htonl(OFPIT11_ALL); |
3109 | ots[i].config = htonl(OFPTC11_TABLE_MISS_MASK); | |
6c1491fb | 3110 | ots[i].max_entries = htonl(1000000); /* An arbitrary big number. */ |
d0918789 | 3111 | ots[i].active_count = htonl(classifier_count(&p->tables[i].cls)); |
6c1491fb | 3112 | } |
064af421 | 3113 | |
6c1491fb | 3114 | p->ofproto_class->get_tables(p, ots); |
064af421 | 3115 | |
c2f0373a BP |
3116 | /* Post-process the tables, dropping hidden tables. */ |
3117 | n_tables = p->n_tables; | |
254750ce BP |
3118 | for (i = 0; i < p->n_tables; i++) { |
3119 | const struct oftable *table = &p->tables[i]; | |
3120 | ||
c2f0373a BP |
3121 | if (table->flags & OFTABLE_HIDDEN) { |
3122 | n_tables = i; | |
3123 | break; | |
3124 | } | |
3125 | ||
254750ce BP |
3126 | if (table->name) { |
3127 | ovs_strzcpy(ots[i].name, table->name, sizeof ots[i].name); | |
3128 | } | |
3129 | ||
3130 | if (table->max_flows < ntohl(ots[i].max_entries)) { | |
3131 | ots[i].max_entries = htonl(table->max_flows); | |
3132 | } | |
3133 | } | |
3134 | ||
c2f0373a | 3135 | msg = ofputil_encode_table_stats_reply(ots, n_tables, request); |
b0421aa2 | 3136 | ofconn_send_reply(ofconn, msg); |
307975da SH |
3137 | |
3138 | free(ots); | |
3139 | ||
064af421 BP |
3140 | return 0; |
3141 | } | |
3142 | ||
abaad8cf | 3143 | static void |
63f2140a | 3144 | append_port_stat(struct ofport *port, struct list *replies) |
abaad8cf | 3145 | { |
f8e4867e | 3146 | struct ofputil_port_stats ops = { .port_no = port->pp.port_no }; |
abaad8cf | 3147 | |
65e0be10 BP |
3148 | calc_duration(port->created, time_msec(), |
3149 | &ops.duration_sec, &ops.duration_nsec); | |
3150 | ||
d295e8e9 JP |
3151 | /* Intentionally ignore return value, since errors will set |
3152 | * 'stats' to all-1s, which is correct for OpenFlow, and | |
abaad8cf | 3153 | * netdev_get_stats() will log errors. */ |
f8e4867e SH |
3154 | ofproto_port_get_stats(port, &ops.stats); |
3155 | ||
3156 | ofputil_append_port_stat(replies, &ops); | |
abaad8cf JP |
3157 | } |
3158 | ||
70ae4f93 BP |
3159 | static void |
3160 | handle_port_request(struct ofconn *ofconn, | |
3161 | const struct ofp_header *request, ofp_port_t port_no, | |
3162 | void (*cb)(struct ofport *, struct list *replies)) | |
064af421 | 3163 | { |
70ae4f93 | 3164 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
064af421 | 3165 | struct ofport *port; |
63f2140a | 3166 | struct list replies; |
064af421 | 3167 | |
982697a4 | 3168 | ofpmp_init(&replies, request); |
7f05e7ab | 3169 | if (port_no != OFPP_ANY) { |
70ae4f93 | 3170 | port = ofproto_get_port(ofproto, port_no); |
abaad8cf | 3171 | if (port) { |
70ae4f93 | 3172 | cb(port, &replies); |
abaad8cf JP |
3173 | } |
3174 | } else { | |
70ae4f93 BP |
3175 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
3176 | cb(port, &replies); | |
abaad8cf | 3177 | } |
064af421 BP |
3178 | } |
3179 | ||
63f2140a | 3180 | ofconn_send_replies(ofconn, &replies); |
70ae4f93 BP |
3181 | } |
3182 | ||
3183 | static enum ofperr | |
3184 | handle_port_stats_request(struct ofconn *ofconn, | |
3185 | const struct ofp_header *request) | |
3186 | { | |
3187 | ofp_port_t port_no; | |
3188 | enum ofperr error; | |
3189 | ||
3190 | error = ofputil_decode_port_stats_request(request, &port_no); | |
3191 | if (!error) { | |
3192 | handle_port_request(ofconn, request, port_no, append_port_stat); | |
3193 | } | |
3194 | return error; | |
3195 | } | |
3196 | ||
3197 | static void | |
3198 | append_port_desc(struct ofport *port, struct list *replies) | |
3199 | { | |
3200 | ofputil_append_port_desc_stats_reply(&port->pp, replies); | |
064af421 BP |
3201 | } |
3202 | ||
2be393ed JP |
3203 | static enum ofperr |
3204 | handle_port_desc_stats_request(struct ofconn *ofconn, | |
982697a4 | 3205 | const struct ofp_header *request) |
2be393ed | 3206 | { |
70ae4f93 BP |
3207 | ofp_port_t port_no; |
3208 | enum ofperr error; | |
2be393ed | 3209 | |
70ae4f93 BP |
3210 | error = ofputil_decode_port_desc_stats_request(request, &port_no); |
3211 | if (!error) { | |
3212 | handle_port_request(ofconn, request, port_no, append_port_desc); | |
2be393ed | 3213 | } |
70ae4f93 | 3214 | return error; |
2be393ed JP |
3215 | } |
3216 | ||
98eaac36 JR |
3217 | static uint32_t |
3218 | hash_cookie(ovs_be64 cookie) | |
3219 | { | |
965607c8 | 3220 | return hash_uint64((OVS_FORCE uint64_t)cookie); |
98eaac36 JR |
3221 | } |
3222 | ||
3223 | static void | |
3224 | cookies_insert(struct ofproto *ofproto, struct rule *rule) | |
2c916028 | 3225 | OVS_REQUIRES(ofproto_mutex) |
98eaac36 JR |
3226 | { |
3227 | hindex_insert(&ofproto->cookies, &rule->cookie_node, | |
3228 | hash_cookie(rule->flow_cookie)); | |
3229 | } | |
3230 | ||
3231 | static void | |
3232 | cookies_remove(struct ofproto *ofproto, struct rule *rule) | |
2c916028 | 3233 | OVS_REQUIRES(ofproto_mutex) |
98eaac36 JR |
3234 | { |
3235 | hindex_remove(&ofproto->cookies, &rule->cookie_node); | |
3236 | } | |
3237 | ||
c6ebb8fb | 3238 | static void |
65e0be10 BP |
3239 | calc_duration(long long int start, long long int now, |
3240 | uint32_t *sec, uint32_t *nsec) | |
c6ebb8fb | 3241 | { |
f27f2134 | 3242 | long long int msecs = now - start; |
588cd7b5 BP |
3243 | *sec = msecs / 1000; |
3244 | *nsec = (msecs % 1000) * (1000 * 1000); | |
3245 | } | |
3246 | ||
48266274 | 3247 | /* Checks whether 'table_id' is 0xff or a valid table ID in 'ofproto'. Returns |
554764d1 SH |
3248 | * true if 'table_id' is OK, false otherwise. */ |
3249 | static bool | |
48266274 BP |
3250 | check_table_id(const struct ofproto *ofproto, uint8_t table_id) |
3251 | { | |
554764d1 | 3252 | return table_id == OFPTT_ALL || table_id < ofproto->n_tables; |
48266274 BP |
3253 | } |
3254 | ||
5c67e4af | 3255 | static struct oftable * |
d4ce8a49 | 3256 | next_visible_table(const struct ofproto *ofproto, uint8_t table_id) |
5c67e4af BP |
3257 | { |
3258 | struct oftable *table; | |
3259 | ||
3260 | for (table = &ofproto->tables[table_id]; | |
3261 | table < &ofproto->tables[ofproto->n_tables]; | |
3262 | table++) { | |
3263 | if (!(table->flags & OFTABLE_HIDDEN)) { | |
3264 | return table; | |
3265 | } | |
3266 | } | |
3267 | ||
3268 | return NULL; | |
3269 | } | |
3270 | ||
d0918789 | 3271 | static struct oftable * |
d4ce8a49 | 3272 | first_matching_table(const struct ofproto *ofproto, uint8_t table_id) |
064af421 | 3273 | { |
6c1491fb | 3274 | if (table_id == 0xff) { |
5c67e4af | 3275 | return next_visible_table(ofproto, 0); |
6c1491fb BP |
3276 | } else if (table_id < ofproto->n_tables) { |
3277 | return &ofproto->tables[table_id]; | |
a02e5331 | 3278 | } else { |
6c1491fb | 3279 | return NULL; |
a02e5331 | 3280 | } |
064af421 BP |
3281 | } |
3282 | ||
d0918789 | 3283 | static struct oftable * |
d4ce8a49 BP |
3284 | next_matching_table(const struct ofproto *ofproto, |
3285 | const struct oftable *table, uint8_t table_id) | |
6c1491fb | 3286 | { |
5c67e4af BP |
3287 | return (table_id == 0xff |
3288 | ? next_visible_table(ofproto, (table - ofproto->tables) + 1) | |
6c1491fb BP |
3289 | : NULL); |
3290 | } | |
3291 | ||
d0918789 | 3292 | /* Assigns TABLE to each oftable, in turn, that matches TABLE_ID in OFPROTO: |
6c1491fb BP |
3293 | * |
3294 | * - If TABLE_ID is 0xff, this iterates over every classifier table in | |
5c67e4af | 3295 | * OFPROTO, skipping tables marked OFTABLE_HIDDEN. |
6c1491fb BP |
3296 | * |
3297 | * - If TABLE_ID is the number of a table in OFPROTO, then the loop iterates | |
5c67e4af BP |
3298 | * only once, for that table. (This can be used to access tables marked |
3299 | * OFTABLE_HIDDEN.) | |
6c1491fb | 3300 | * |
48266274 BP |
3301 | * - Otherwise, TABLE_ID isn't valid for OFPROTO, so the loop won't be |
3302 | * entered at all. (Perhaps you should have validated TABLE_ID with | |
3303 | * check_table_id().) | |
6c1491fb BP |
3304 | * |
3305 | * All parameters are evaluated multiple times. | |
3306 | */ | |
d0918789 BP |
3307 | #define FOR_EACH_MATCHING_TABLE(TABLE, TABLE_ID, OFPROTO) \ |
3308 | for ((TABLE) = first_matching_table(OFPROTO, TABLE_ID); \ | |
3309 | (TABLE) != NULL; \ | |
3310 | (TABLE) = next_matching_table(OFPROTO, TABLE, TABLE_ID)) | |
6c1491fb | 3311 | |
a9b22b7f BP |
3312 | /* Initializes 'criteria' in a straightforward way based on the other |
3313 | * parameters. | |
3314 | * | |
dd51dae2 BP |
3315 | * By default, the criteria include flows that are read-only, on the assumption |
3316 | * that the collected flows won't be modified. Call rule_criteria_require_rw() | |
3317 | * if flows will be modified. | |
3318 | * | |
a9b22b7f BP |
3319 | * For "loose" matching, the 'priority' parameter is unimportant and may be |
3320 | * supplied as 0. */ | |
3321 | static void | |
3322 | rule_criteria_init(struct rule_criteria *criteria, uint8_t table_id, | |
3323 | const struct match *match, unsigned int priority, | |
3324 | ovs_be64 cookie, ovs_be64 cookie_mask, | |
3325 | ofp_port_t out_port, uint32_t out_group) | |
3326 | { | |
3327 | criteria->table_id = table_id; | |
3328 | cls_rule_init(&criteria->cr, match, priority); | |
3329 | criteria->cookie = cookie; | |
3330 | criteria->cookie_mask = cookie_mask; | |
3331 | criteria->out_port = out_port; | |
3332 | criteria->out_group = out_group; | |
dd51dae2 BP |
3333 | |
3334 | /* We ordinarily want to skip hidden rules, but there has to be a way for | |
3335 | * code internal to OVS to modify and delete them, so if the criteria | |
3336 | * specify a priority that can only be for a hidden flow, then allow hidden | |
3337 | * rules to be selected. (This doesn't allow OpenFlow clients to meddle | |
3338 | * with hidden flows because OpenFlow uses only a 16-bit field to specify | |
3339 | * priority.) */ | |
3340 | criteria->include_hidden = priority > UINT16_MAX; | |
3341 | ||
3342 | /* We assume that the criteria are being used to collect flows for reading | |
3343 | * but not modification. Thus, we should collect read-only flows. */ | |
3344 | criteria->include_readonly = true; | |
3345 | } | |
3346 | ||
3347 | /* By default, criteria initialized by rule_criteria_init() will match flows | |
3348 | * that are read-only, on the assumption that the collected flows won't be | |
3349 | * modified. Call this function to match only flows that are be modifiable. | |
3350 | * | |
3351 | * Specify 'can_write_readonly' as false in ordinary circumstances, true if the | |
3352 | * caller has special privileges that allow it to modify even "read-only" | |
3353 | * flows. */ | |
3354 | static void | |
3355 | rule_criteria_require_rw(struct rule_criteria *criteria, | |
3356 | bool can_write_readonly) | |
3357 | { | |
3358 | criteria->include_readonly = can_write_readonly; | |
a9b22b7f BP |
3359 | } |
3360 | ||
3361 | static void | |
3362 | rule_criteria_destroy(struct rule_criteria *criteria) | |
3363 | { | |
3364 | cls_rule_destroy(&criteria->cr); | |
3365 | } | |
3366 | ||
a8e547c1 BP |
3367 | void |
3368 | rule_collection_init(struct rule_collection *rules) | |
3369 | { | |
3370 | rules->rules = rules->stub; | |
3371 | rules->n = 0; | |
3372 | rules->capacity = ARRAY_SIZE(rules->stub); | |
3373 | } | |
3374 | ||
3375 | void | |
3376 | rule_collection_add(struct rule_collection *rules, struct rule *rule) | |
3377 | { | |
3378 | if (rules->n >= rules->capacity) { | |
3379 | size_t old_size, new_size; | |
3380 | ||
3381 | old_size = rules->capacity * sizeof *rules->rules; | |
3382 | rules->capacity *= 2; | |
3383 | new_size = rules->capacity * sizeof *rules->rules; | |
3384 | ||
3385 | if (rules->rules == rules->stub) { | |
3386 | rules->rules = xmalloc(new_size); | |
3387 | memcpy(rules->rules, rules->stub, old_size); | |
3388 | } else { | |
3389 | rules->rules = xrealloc(rules->rules, new_size); | |
3390 | } | |
3391 | } | |
3392 | ||
3393 | rules->rules[rules->n++] = rule; | |
3394 | } | |
3395 | ||
15aaf599 BP |
3396 | void |
3397 | rule_collection_ref(struct rule_collection *rules) | |
3398 | OVS_REQUIRES(ofproto_mutex) | |
3399 | { | |
3400 | size_t i; | |
3401 | ||
3402 | for (i = 0; i < rules->n; i++) { | |
3403 | ofproto_rule_ref(rules->rules[i]); | |
3404 | } | |
3405 | } | |
3406 | ||
3407 | void | |
3408 | rule_collection_unref(struct rule_collection *rules) | |
3409 | { | |
3410 | size_t i; | |
3411 | ||
3412 | for (i = 0; i < rules->n; i++) { | |
3413 | ofproto_rule_unref(rules->rules[i]); | |
3414 | } | |
3415 | } | |
3416 | ||
a8e547c1 BP |
3417 | void |
3418 | rule_collection_destroy(struct rule_collection *rules) | |
3419 | { | |
3420 | if (rules->rules != rules->stub) { | |
3421 | free(rules->rules); | |
3422 | } | |
bfd3dbf6 BP |
3423 | |
3424 | /* Make repeated destruction harmless. */ | |
3425 | rule_collection_init(rules); | |
a8e547c1 BP |
3426 | } |
3427 | ||
dd51dae2 BP |
3428 | /* Checks whether 'rule' matches 'c' and, if so, adds it to 'rules'. This |
3429 | * function verifies most of the criteria in 'c' itself, but the caller must | |
3430 | * check 'c->cr' itself. | |
3431 | * | |
3432 | * Increments '*n_readonly' if 'rule' wasn't added because it's read-only (and | |
b20f4073 BP |
3433 | * 'c' only includes modifiable rules). */ |
3434 | static void | |
a9b22b7f | 3435 | collect_rule(struct rule *rule, const struct rule_criteria *c, |
dd51dae2 | 3436 | struct rule_collection *rules, size_t *n_readonly) |
15aaf599 | 3437 | OVS_REQUIRES(ofproto_mutex) |
6c1d7642 | 3438 | { |
dd51dae2 BP |
3439 | if ((c->table_id == rule->table_id || c->table_id == 0xff) |
3440 | && ofproto_rule_has_out_port(rule, c->out_port) | |
3441 | && ofproto_rule_has_out_group(rule, c->out_group) | |
3442 | && !((rule->flow_cookie ^ c->cookie) & c->cookie_mask) | |
3443 | && (!rule_is_hidden(rule) || c->include_hidden)) { | |
dd51dae2 | 3444 | /* Rule matches all the criteria... */ |
834fe5cb | 3445 | if (!rule_is_readonly(rule) || c->include_readonly) { |
dd51dae2 | 3446 | /* ...add it. */ |
a8e547c1 | 3447 | rule_collection_add(rules, rule); |
dd51dae2 BP |
3448 | } else { |
3449 | /* ...except it's read-only. */ | |
3450 | ++*n_readonly; | |
6c1d7642 | 3451 | } |
6c1d7642 BP |
3452 | } |
3453 | } | |
3454 | ||
a9b22b7f BP |
3455 | /* Searches 'ofproto' for rules that match the criteria in 'criteria'. Matches |
3456 | * on classifiers rules are done in the "loose" way required for OpenFlow | |
3457 | * OFPFC_MODIFY and OFPFC_DELETE requests. Puts the selected rules on list | |
9ed18e46 BP |
3458 | * 'rules'. |
3459 | * | |
9ed18e46 | 3460 | * Returns 0 on success, otherwise an OpenFlow error code. */ |
90bf1e07 | 3461 | static enum ofperr |
a9b22b7f | 3462 | collect_rules_loose(struct ofproto *ofproto, |
a8e547c1 BP |
3463 | const struct rule_criteria *criteria, |
3464 | struct rule_collection *rules) | |
15aaf599 | 3465 | OVS_REQUIRES(ofproto_mutex) |
9ed18e46 | 3466 | { |
d0918789 | 3467 | struct oftable *table; |
554764d1 | 3468 | enum ofperr error = 0; |
dd51dae2 | 3469 | size_t n_readonly = 0; |
48266274 | 3470 | |
a8e547c1 BP |
3471 | rule_collection_init(rules); |
3472 | ||
554764d1 SH |
3473 | if (!check_table_id(ofproto, criteria->table_id)) { |
3474 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
a8e547c1 | 3475 | goto exit; |
48266274 | 3476 | } |
9ed18e46 | 3477 | |
b8266395 | 3478 | if (criteria->cookie_mask == OVS_BE64_MAX) { |
98eaac36 JR |
3479 | struct rule *rule; |
3480 | ||
a9b22b7f BP |
3481 | HINDEX_FOR_EACH_WITH_HASH (rule, cookie_node, |
3482 | hash_cookie(criteria->cookie), | |
98eaac36 | 3483 | &ofproto->cookies) { |
a9b22b7f | 3484 | if (cls_rule_is_loose_match(&rule->cr, &criteria->cr.match)) { |
b20f4073 | 3485 | collect_rule(rule, criteria, rules, &n_readonly); |
98eaac36 JR |
3486 | } |
3487 | } | |
6c1d7642 | 3488 | } else { |
a9b22b7f | 3489 | FOR_EACH_MATCHING_TABLE (table, criteria->table_id, ofproto) { |
6c1d7642 | 3490 | struct rule *rule; |
9ed18e46 | 3491 | |
5f0476ce | 3492 | CLS_FOR_EACH_TARGET (rule, cr, &table->cls, &criteria->cr) { |
b20f4073 | 3493 | collect_rule(rule, criteria, rules, &n_readonly); |
9ed18e46 BP |
3494 | } |
3495 | } | |
3496 | } | |
48d28ac1 | 3497 | |
a8e547c1 | 3498 | exit: |
dd51dae2 BP |
3499 | if (!error && !rules->n && n_readonly) { |
3500 | /* We didn't find any rules to modify. We did find some read-only | |
3501 | * rules that we're not allowed to modify, so report that. */ | |
3502 | error = OFPERR_OFPBRC_EPERM; | |
3503 | } | |
a8e547c1 BP |
3504 | if (error) { |
3505 | rule_collection_destroy(rules); | |
3506 | } | |
48d28ac1 | 3507 | return error; |
9ed18e46 BP |
3508 | } |
3509 | ||
a9b22b7f BP |
3510 | /* Searches 'ofproto' for rules that match the criteria in 'criteria'. Matches |
3511 | * on classifiers rules are done in the "strict" way required for OpenFlow | |
3512 | * OFPFC_MODIFY_STRICT and OFPFC_DELETE_STRICT requests. Puts the selected | |
3513 | * rules on list 'rules'. | |
9ed18e46 | 3514 | * |
9ed18e46 | 3515 | * Returns 0 on success, otherwise an OpenFlow error code. */ |
90bf1e07 | 3516 | static enum ofperr |
a9b22b7f | 3517 | collect_rules_strict(struct ofproto *ofproto, |
a8e547c1 BP |
3518 | const struct rule_criteria *criteria, |
3519 | struct rule_collection *rules) | |
15aaf599 | 3520 | OVS_REQUIRES(ofproto_mutex) |
9ed18e46 | 3521 | { |
d0918789 | 3522 | struct oftable *table; |
dd51dae2 | 3523 | size_t n_readonly = 0; |
554764d1 | 3524 | int error = 0; |
48266274 | 3525 | |
a8e547c1 BP |
3526 | rule_collection_init(rules); |
3527 | ||
554764d1 SH |
3528 | if (!check_table_id(ofproto, criteria->table_id)) { |
3529 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
a8e547c1 | 3530 | goto exit; |
48266274 | 3531 | } |
9ed18e46 | 3532 | |
b8266395 | 3533 | if (criteria->cookie_mask == OVS_BE64_MAX) { |
98eaac36 JR |
3534 | struct rule *rule; |
3535 | ||
a9b22b7f BP |
3536 | HINDEX_FOR_EACH_WITH_HASH (rule, cookie_node, |
3537 | hash_cookie(criteria->cookie), | |
98eaac36 | 3538 | &ofproto->cookies) { |
a9b22b7f | 3539 | if (cls_rule_equal(&rule->cr, &criteria->cr)) { |
b20f4073 | 3540 | collect_rule(rule, criteria, rules, &n_readonly); |
98eaac36 JR |
3541 | } |
3542 | } | |
6c1d7642 | 3543 | } else { |
a9b22b7f | 3544 | FOR_EACH_MATCHING_TABLE (table, criteria->table_id, ofproto) { |
6c1d7642 | 3545 | struct rule *rule; |
9ed18e46 | 3546 | |
a9b22b7f BP |
3547 | rule = rule_from_cls_rule(classifier_find_rule_exactly( |
3548 | &table->cls, &criteria->cr)); | |
6c1d7642 | 3549 | if (rule) { |
b20f4073 | 3550 | collect_rule(rule, criteria, rules, &n_readonly); |
9ed18e46 BP |
3551 | } |
3552 | } | |
3553 | } | |
48d28ac1 | 3554 | |
a8e547c1 | 3555 | exit: |
b20f4073 BP |
3556 | if (!error && !rules->n && n_readonly) { |
3557 | /* We didn't find any rules to modify. We did find some read-only | |
3558 | * rules that we're not allowed to modify, so report that. */ | |
3559 | error = OFPERR_OFPBRC_EPERM; | |
3560 | } | |
a8e547c1 BP |
3561 | if (error) { |
3562 | rule_collection_destroy(rules); | |
3563 | } | |
6c1d7642 | 3564 | return error; |
9ed18e46 BP |
3565 | } |
3566 | ||
f27f2134 BP |
3567 | /* Returns 'age_ms' (a duration in milliseconds), converted to seconds and |
3568 | * forced into the range of a uint16_t. */ | |
3569 | static int | |
3570 | age_secs(long long int age_ms) | |
3571 | { | |
3572 | return (age_ms < 0 ? 0 | |
3573 | : age_ms >= UINT16_MAX * 1000 ? UINT16_MAX | |
3574 | : (unsigned int) age_ms / 1000); | |
3575 | } | |
3576 | ||
90bf1e07 | 3577 | static enum ofperr |
63f2140a | 3578 | handle_flow_stats_request(struct ofconn *ofconn, |
982697a4 | 3579 | const struct ofp_header *request) |
15aaf599 | 3580 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 3581 | { |
64ff1d96 | 3582 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
81d1ea94 | 3583 | struct ofputil_flow_stats_request fsr; |
a9b22b7f | 3584 | struct rule_criteria criteria; |
a8e547c1 | 3585 | struct rule_collection rules; |
63f2140a | 3586 | struct list replies; |
90bf1e07 | 3587 | enum ofperr error; |
a8e547c1 | 3588 | size_t i; |
09246b99 | 3589 | |
982697a4 | 3590 | error = ofputil_decode_flow_stats_request(&fsr, request); |
09246b99 BP |
3591 | if (error) { |
3592 | return error; | |
3593 | } | |
3594 | ||
a9b22b7f BP |
3595 | rule_criteria_init(&criteria, fsr.table_id, &fsr.match, 0, fsr.cookie, |
3596 | fsr.cookie_mask, fsr.out_port, fsr.out_group); | |
15aaf599 BP |
3597 | |
3598 | ovs_mutex_lock(&ofproto_mutex); | |
a9b22b7f BP |
3599 | error = collect_rules_loose(ofproto, &criteria, &rules); |
3600 | rule_criteria_destroy(&criteria); | |
15aaf599 BP |
3601 | if (!error) { |
3602 | rule_collection_ref(&rules); | |
3603 | } | |
3604 | ovs_mutex_unlock(&ofproto_mutex); | |
3605 | ||
9ed18e46 BP |
3606 | if (error) { |
3607 | return error; | |
3608 | } | |
5ecc9d81 | 3609 | |
982697a4 | 3610 | ofpmp_init(&replies, request); |
a8e547c1 BP |
3611 | for (i = 0; i < rules.n; i++) { |
3612 | struct rule *rule = rules.rules[i]; | |
f27f2134 | 3613 | long long int now = time_msec(); |
9ed18e46 | 3614 | struct ofputil_flow_stats fs; |
15aaf599 | 3615 | long long int created, used, modified; |
dc723c44 | 3616 | const struct rule_actions *actions; |
15aaf599 | 3617 | enum ofputil_flow_mod_flags flags; |
a3779dbc | 3618 | |
d10976b7 | 3619 | ovs_mutex_lock(&rule->mutex); |
15aaf599 | 3620 | fs.cookie = rule->flow_cookie; |
a3779dbc EJ |
3621 | fs.idle_timeout = rule->idle_timeout; |
3622 | fs.hard_timeout = rule->hard_timeout; | |
15aaf599 | 3623 | created = rule->created; |
15aaf599 | 3624 | modified = rule->modified; |
06a0f3e2 | 3625 | actions = rule_get_actions(rule); |
15aaf599 | 3626 | flags = rule->flags; |
d10976b7 | 3627 | ovs_mutex_unlock(&rule->mutex); |
a3779dbc | 3628 | |
dc437090 JR |
3629 | ofproto->ofproto_class->rule_get_stats(rule, &fs.packet_count, |
3630 | &fs.byte_count, &used); | |
3631 | ||
15aaf599 BP |
3632 | minimatch_expand(&rule->cr.match, &fs.match); |
3633 | fs.table_id = rule->table_id; | |
3634 | calc_duration(created, now, &fs.duration_sec, &fs.duration_nsec); | |
3635 | fs.priority = rule->cr.priority; | |
3636 | fs.idle_age = age_secs(now - used); | |
3637 | fs.hard_age = age_secs(now - modified); | |
15aaf599 BP |
3638 | fs.ofpacts = actions->ofpacts; |
3639 | fs.ofpacts_len = actions->ofpacts_len; | |
3f517bcd | 3640 | |
15aaf599 | 3641 | fs.flags = flags; |
9ed18e46 | 3642 | ofputil_append_flow_stats_reply(&fs, &replies); |
3c4486a5 | 3643 | } |
15aaf599 BP |
3644 | |
3645 | rule_collection_unref(&rules); | |
a8e547c1 BP |
3646 | rule_collection_destroy(&rules); |
3647 | ||
63f2140a | 3648 | ofconn_send_replies(ofconn, &replies); |
5ecc9d81 | 3649 | |
09246b99 BP |
3650 | return 0; |
3651 | } | |
3652 | ||
4f2cad2c | 3653 | static void |
3394b5b6 | 3654 | flow_stats_ds(struct rule *rule, struct ds *results) |
4f2cad2c | 3655 | { |
4f2cad2c | 3656 | uint64_t packet_count, byte_count; |
dc723c44 | 3657 | const struct rule_actions *actions; |
dc437090 | 3658 | long long int created, used; |
4f2cad2c | 3659 | |
dc437090 JR |
3660 | rule->ofproto->ofproto_class->rule_get_stats(rule, &packet_count, |
3661 | &byte_count, &used); | |
4f2cad2c | 3662 | |
15aaf599 | 3663 | ovs_mutex_lock(&rule->mutex); |
06a0f3e2 | 3664 | actions = rule_get_actions(rule); |
15aaf599 BP |
3665 | created = rule->created; |
3666 | ovs_mutex_unlock(&rule->mutex); | |
3667 | ||
6c1491fb BP |
3668 | if (rule->table_id != 0) { |
3669 | ds_put_format(results, "table_id=%"PRIu8", ", rule->table_id); | |
3670 | } | |
15aaf599 | 3671 | ds_put_format(results, "duration=%llds, ", (time_msec() - created) / 1000); |
4f2cad2c JP |
3672 | ds_put_format(results, "n_packets=%"PRIu64", ", packet_count); |
3673 | ds_put_format(results, "n_bytes=%"PRIu64", ", byte_count); | |
cb833cf6 | 3674 | cls_rule_format(&rule->cr, results); |
a5df0e72 | 3675 | ds_put_char(results, ','); |
15aaf599 | 3676 | |
455ecd77 | 3677 | ds_put_cstr(results, "actions="); |
15aaf599 BP |
3678 | ofpacts_format(actions->ofpacts, actions->ofpacts_len, results); |
3679 | ||
4f2cad2c JP |
3680 | ds_put_cstr(results, "\n"); |
3681 | } | |
3682 | ||
d295e8e9 | 3683 | /* Adds a pretty-printed description of all flows to 'results', including |
ee8b231c | 3684 | * hidden flows (e.g., set up by in-band control). */ |
4f2cad2c JP |
3685 | void |
3686 | ofproto_get_all_flows(struct ofproto *p, struct ds *results) | |
3687 | { | |
d0918789 | 3688 | struct oftable *table; |
6c1491fb | 3689 | |
d0918789 | 3690 | OFPROTO_FOR_EACH_TABLE (table, p) { |
6c1491fb | 3691 | struct rule *rule; |
064af421 | 3692 | |
5f0476ce | 3693 | CLS_FOR_EACH (rule, cr, &table->cls) { |
6c1491fb BP |
3694 | flow_stats_ds(rule, results); |
3695 | } | |
064af421 | 3696 | } |
064af421 BP |
3697 | } |
3698 | ||
b5827b24 BP |
3699 | /* Obtains the NetFlow engine type and engine ID for 'ofproto' into |
3700 | * '*engine_type' and '*engine_id', respectively. */ | |
3701 | void | |
3702 | ofproto_get_netflow_ids(const struct ofproto *ofproto, | |
3703 | uint8_t *engine_type, uint8_t *engine_id) | |
3704 | { | |
abe529af | 3705 | ofproto->ofproto_class->get_netflow_ids(ofproto, engine_type, engine_id); |
b5827b24 BP |
3706 | } |
3707 | ||
8f5514fe AW |
3708 | /* Checks the status change of CFM on 'ofport'. |
3709 | * | |
3710 | * Returns true if 'ofproto_class' does not support 'cfm_status_changed'. */ | |
3711 | bool | |
3712 | ofproto_port_cfm_status_changed(struct ofproto *ofproto, ofp_port_t ofp_port) | |
3713 | { | |
3714 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
3715 | return (ofport && ofproto->ofproto_class->cfm_status_changed | |
3716 | ? ofproto->ofproto_class->cfm_status_changed(ofport) | |
3717 | : true); | |
3718 | } | |
3719 | ||
88bf179a AW |
3720 | /* Checks the status of CFM configured on 'ofp_port' within 'ofproto'. |
3721 | * Returns 0 if the port's CFM status was successfully stored into | |
3722 | * '*status'. Returns positive errno if the port did not have CFM | |
8f5514fe | 3723 | * configured. |
9a9e3786 | 3724 | * |
88bf179a AW |
3725 | * The caller must provide and own '*status', and must free 'status->rmps'. |
3726 | * '*status' is indeterminate if the return value is non-zero. */ | |
3727 | int | |
4e022ec0 | 3728 | ofproto_port_get_cfm_status(const struct ofproto *ofproto, ofp_port_t ofp_port, |
685acfd9 | 3729 | struct cfm_status *status) |
3967a833 MM |
3730 | { |
3731 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
88bf179a AW |
3732 | return (ofport && ofproto->ofproto_class->get_cfm_status |
3733 | ? ofproto->ofproto_class->get_cfm_status(ofport, status) | |
3734 | : EOPNOTSUPP); | |
3967a833 MM |
3735 | } |
3736 | ||
90bf1e07 | 3737 | static enum ofperr |
76c93b22 | 3738 | handle_aggregate_stats_request(struct ofconn *ofconn, |
982697a4 | 3739 | const struct ofp_header *oh) |
15aaf599 | 3740 | OVS_EXCLUDED(ofproto_mutex) |
27d34fce | 3741 | { |
76c93b22 | 3742 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
81d1ea94 | 3743 | struct ofputil_flow_stats_request request; |
76c93b22 | 3744 | struct ofputil_aggregate_stats stats; |
5e9d0469 | 3745 | bool unknown_packets, unknown_bytes; |
a9b22b7f | 3746 | struct rule_criteria criteria; |
a8e547c1 | 3747 | struct rule_collection rules; |
76c93b22 | 3748 | struct ofpbuf *reply; |
90bf1e07 | 3749 | enum ofperr error; |
a8e547c1 | 3750 | size_t i; |
27d34fce | 3751 | |
982697a4 | 3752 | error = ofputil_decode_flow_stats_request(&request, oh); |
76c93b22 BP |
3753 | if (error) { |
3754 | return error; | |
3755 | } | |
5ecc9d81 | 3756 | |
a9b22b7f BP |
3757 | rule_criteria_init(&criteria, request.table_id, &request.match, 0, |
3758 | request.cookie, request.cookie_mask, | |
3759 | request.out_port, request.out_group); | |
15aaf599 BP |
3760 | |
3761 | ovs_mutex_lock(&ofproto_mutex); | |
a9b22b7f BP |
3762 | error = collect_rules_loose(ofproto, &criteria, &rules); |
3763 | rule_criteria_destroy(&criteria); | |
15aaf599 BP |
3764 | if (!error) { |
3765 | rule_collection_ref(&rules); | |
3766 | } | |
3767 | ovs_mutex_unlock(&ofproto_mutex); | |
3768 | ||
9ed18e46 BP |
3769 | if (error) { |
3770 | return error; | |
3771 | } | |
3c4486a5 | 3772 | |
9ed18e46 | 3773 | memset(&stats, 0, sizeof stats); |
5e9d0469 | 3774 | unknown_packets = unknown_bytes = false; |
a8e547c1 BP |
3775 | for (i = 0; i < rules.n; i++) { |
3776 | struct rule *rule = rules.rules[i]; | |
9ed18e46 BP |
3777 | uint64_t packet_count; |
3778 | uint64_t byte_count; | |
dc437090 | 3779 | long long int used; |
5ecc9d81 | 3780 | |
9ed18e46 | 3781 | ofproto->ofproto_class->rule_get_stats(rule, &packet_count, |
dc437090 | 3782 | &byte_count, &used); |
5ecc9d81 | 3783 | |
5e9d0469 BP |
3784 | if (packet_count == UINT64_MAX) { |
3785 | unknown_packets = true; | |
3786 | } else { | |
3787 | stats.packet_count += packet_count; | |
3788 | } | |
3789 | ||
3790 | if (byte_count == UINT64_MAX) { | |
3791 | unknown_bytes = true; | |
3792 | } else { | |
3793 | stats.byte_count += byte_count; | |
3794 | } | |
3795 | ||
9ed18e46 | 3796 | stats.flow_count++; |
3c4486a5 | 3797 | } |
5e9d0469 BP |
3798 | if (unknown_packets) { |
3799 | stats.packet_count = UINT64_MAX; | |
3800 | } | |
3801 | if (unknown_bytes) { | |
3802 | stats.byte_count = UINT64_MAX; | |
3803 | } | |
27d34fce | 3804 | |
15aaf599 | 3805 | rule_collection_unref(&rules); |
a8e547c1 BP |
3806 | rule_collection_destroy(&rules); |
3807 | ||
982697a4 | 3808 | reply = ofputil_encode_aggregate_stats_reply(&stats, oh); |
76c93b22 | 3809 | ofconn_send_reply(ofconn, reply); |
09246b99 BP |
3810 | |
3811 | return 0; | |
3812 | } | |
3813 | ||
c1c9c9c4 | 3814 | struct queue_stats_cbdata { |
ca0f572c | 3815 | struct ofport *ofport; |
63f2140a | 3816 | struct list replies; |
6dc34a0d | 3817 | long long int now; |
c1c9c9c4 BP |
3818 | }; |
3819 | ||
3820 | static void | |
db9220c3 | 3821 | put_queue_stats(struct queue_stats_cbdata *cbdata, uint32_t queue_id, |
c1c9c9c4 BP |
3822 | const struct netdev_queue_stats *stats) |
3823 | { | |
6dc34a0d | 3824 | struct ofputil_queue_stats oqs; |
c1c9c9c4 | 3825 | |
6dc34a0d BP |
3826 | oqs.port_no = cbdata->ofport->pp.port_no; |
3827 | oqs.queue_id = queue_id; | |
3828 | oqs.tx_bytes = stats->tx_bytes; | |
3829 | oqs.tx_packets = stats->tx_packets; | |
3830 | oqs.tx_errors = stats->tx_errors; | |
3831 | if (stats->created != LLONG_MIN) { | |
3832 | calc_duration(stats->created, cbdata->now, | |
3833 | &oqs.duration_sec, &oqs.duration_nsec); | |
3834 | } else { | |
3835 | oqs.duration_sec = oqs.duration_nsec = UINT32_MAX; | |
3836 | } | |
64626975 | 3837 | ofputil_append_queue_stat(&cbdata->replies, &oqs); |
c1c9c9c4 BP |
3838 | } |
3839 | ||
3840 | static void | |
db9220c3 | 3841 | handle_queue_stats_dump_cb(uint32_t queue_id, |
c1c9c9c4 BP |
3842 | struct netdev_queue_stats *stats, |
3843 | void *cbdata_) | |
3844 | { | |
3845 | struct queue_stats_cbdata *cbdata = cbdata_; | |
3846 | ||
3847 | put_queue_stats(cbdata, queue_id, stats); | |
3848 | } | |
3849 | ||
0414d158 | 3850 | static enum ofperr |
ca0f572c | 3851 | handle_queue_stats_for_port(struct ofport *port, uint32_t queue_id, |
c1c9c9c4 BP |
3852 | struct queue_stats_cbdata *cbdata) |
3853 | { | |
ca0f572c | 3854 | cbdata->ofport = port; |
c1c9c9c4 BP |
3855 | if (queue_id == OFPQ_ALL) { |
3856 | netdev_dump_queue_stats(port->netdev, | |
3857 | handle_queue_stats_dump_cb, cbdata); | |
3858 | } else { | |
3859 | struct netdev_queue_stats stats; | |
3860 | ||
1ac788f6 BP |
3861 | if (!netdev_get_queue_stats(port->netdev, queue_id, &stats)) { |
3862 | put_queue_stats(cbdata, queue_id, &stats); | |
0414d158 BP |
3863 | } else { |
3864 | return OFPERR_OFPQOFC_BAD_QUEUE; | |
1ac788f6 | 3865 | } |
c1c9c9c4 | 3866 | } |
0414d158 | 3867 | return 0; |
c1c9c9c4 BP |
3868 | } |
3869 | ||
90bf1e07 | 3870 | static enum ofperr |
63f2140a | 3871 | handle_queue_stats_request(struct ofconn *ofconn, |
982697a4 | 3872 | const struct ofp_header *rq) |
c1c9c9c4 | 3873 | { |
64ff1d96 | 3874 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
c1c9c9c4 | 3875 | struct queue_stats_cbdata cbdata; |
0414d158 | 3876 | struct ofport *port; |
0414d158 | 3877 | enum ofperr error; |
64626975 | 3878 | struct ofputil_queue_stats_request oqsr; |
c1c9c9c4 | 3879 | |
c1c9c9c4 BP |
3880 | COVERAGE_INC(ofproto_queue_req); |
3881 | ||
982697a4 | 3882 | ofpmp_init(&cbdata.replies, rq); |
6dc34a0d | 3883 | cbdata.now = time_msec(); |
c1c9c9c4 | 3884 | |
64626975 SH |
3885 | error = ofputil_decode_queue_stats_request(rq, &oqsr); |
3886 | if (error) { | |
3887 | return error; | |
3888 | } | |
3889 | ||
7f05e7ab | 3890 | if (oqsr.port_no == OFPP_ANY) { |
0414d158 | 3891 | error = OFPERR_OFPQOFC_BAD_QUEUE; |
4e8e4213 | 3892 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
64626975 | 3893 | if (!handle_queue_stats_for_port(port, oqsr.queue_id, &cbdata)) { |
0414d158 BP |
3894 | error = 0; |
3895 | } | |
c1c9c9c4 | 3896 | } |
0414d158 | 3897 | } else { |
64626975 | 3898 | port = ofproto_get_port(ofproto, oqsr.port_no); |
0414d158 | 3899 | error = (port |
64626975 | 3900 | ? handle_queue_stats_for_port(port, oqsr.queue_id, &cbdata) |
0414d158 BP |
3901 | : OFPERR_OFPQOFC_BAD_PORT); |
3902 | } | |
3903 | if (!error) { | |
3904 | ofconn_send_replies(ofconn, &cbdata.replies); | |
c1c9c9c4 | 3905 | } else { |
63f2140a | 3906 | ofpbuf_list_delete(&cbdata.replies); |
c1c9c9c4 | 3907 | } |
c1c9c9c4 | 3908 | |
0414d158 | 3909 | return error; |
c1c9c9c4 | 3910 | } |
7ee20df1 | 3911 | |
2e31a9b8 BP |
3912 | static bool |
3913 | should_evict_a_rule(struct oftable *table, unsigned int extra_space) | |
15aaf599 BP |
3914 | OVS_REQUIRES(ofproto_mutex) |
3915 | OVS_NO_THREAD_SAFETY_ANALYSIS | |
8037acb4 | 3916 | { |
15aaf599 | 3917 | return classifier_count(&table->cls) + extra_space > table->max_flows; |
2e31a9b8 | 3918 | } |
8037acb4 | 3919 | |
2e31a9b8 | 3920 | static enum ofperr |
834fe5cb | 3921 | evict_rules_from_table(struct oftable *table, unsigned int extra_space) |
15aaf599 | 3922 | OVS_REQUIRES(ofproto_mutex) |
2e31a9b8 BP |
3923 | { |
3924 | while (should_evict_a_rule(table, extra_space)) { | |
3925 | struct rule *rule; | |
8037acb4 | 3926 | |
2e31a9b8 BP |
3927 | if (!choose_rule_to_evict(table, &rule)) { |
3928 | return OFPERR_OFPFMFC_TABLE_FULL; | |
2e31a9b8 | 3929 | } else { |
834fe5cb | 3930 | ofproto_rule_delete__(rule, OFPRR_EVICTION); |
2e31a9b8 | 3931 | } |
8037acb4 | 3932 | } |
2e31a9b8 BP |
3933 | |
3934 | return 0; | |
8037acb4 BP |
3935 | } |
3936 | ||
79eee1eb BP |
3937 | /* Implements OFPFC_ADD and the cases for OFPFC_MODIFY and OFPFC_MODIFY_STRICT |
3938 | * in which no matching flow already exists in the flow table. | |
3939 | * | |
3940 | * Adds the flow specified by 'ofm', which is followed by 'n_actions' | |
75a75043 | 3941 | * ofp_actions, to the ofproto's flow table. Returns 0 on success, an OpenFlow |
90bf1e07 BP |
3942 | * error code on failure, or OFPROTO_POSTPONE if the operation cannot be |
3943 | * initiated now but may be retried later. | |
79eee1eb | 3944 | * |
2509616e | 3945 | * The caller retains ownership of 'fm->ofpacts'. |
f25d0cf3 | 3946 | * |
79eee1eb BP |
3947 | * 'ofconn' is used to retrieve the packet buffer specified in ofm->buffer_id, |
3948 | * if any. */ | |
90bf1e07 | 3949 | static enum ofperr |
baae3d02 BP |
3950 | add_flow(struct ofproto *ofproto, struct ofputil_flow_mod *fm, |
3951 | const struct flow_mod_requester *req) | |
15aaf599 | 3952 | OVS_REQUIRES(ofproto_mutex) |
064af421 | 3953 | { |
062fea06 | 3954 | const struct rule_actions *actions; |
d0918789 | 3955 | struct oftable *table; |
8037acb4 | 3956 | struct cls_rule cr; |
064af421 | 3957 | struct rule *rule; |
5a361239 | 3958 | uint8_t table_id; |
554764d1 | 3959 | int error = 0; |
064af421 | 3960 | |
554764d1 SH |
3961 | if (!check_table_id(ofproto, fm->table_id)) { |
3962 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
48266274 BP |
3963 | return error; |
3964 | } | |
3965 | ||
7ee20df1 BP |
3966 | /* Pick table. */ |
3967 | if (fm->table_id == 0xff) { | |
13521ff5 | 3968 | if (ofproto->ofproto_class->rule_choose_table) { |
81a76618 BP |
3969 | error = ofproto->ofproto_class->rule_choose_table(ofproto, |
3970 | &fm->match, | |
7ee20df1 BP |
3971 | &table_id); |
3972 | if (error) { | |
3973 | return error; | |
3974 | } | |
cb22974d | 3975 | ovs_assert(table_id < ofproto->n_tables); |
7ee20df1 | 3976 | } else { |
5a361239 | 3977 | table_id = 0; |
7ee20df1 BP |
3978 | } |
3979 | } else if (fm->table_id < ofproto->n_tables) { | |
5a361239 | 3980 | table_id = fm->table_id; |
7ee20df1 | 3981 | } else { |
c22c56bd | 3982 | return OFPERR_OFPBRC_BAD_TABLE_ID; |
064af421 BP |
3983 | } |
3984 | ||
5a361239 | 3985 | table = &ofproto->tables[table_id]; |
834fe5cb BP |
3986 | if (table->flags & OFTABLE_READONLY |
3987 | && !(fm->flags & OFPUTIL_FF_NO_READONLY)) { | |
5c67e4af BP |
3988 | return OFPERR_OFPBRC_EPERM; |
3989 | } | |
3990 | ||
adcf00ba AZ |
3991 | if (!(fm->flags & OFPUTIL_FF_HIDDEN_FIELDS)) { |
3992 | if (!match_has_default_hidden_fields(&fm->match)) { | |
3993 | VLOG_WARN_RL(&rl, "%s: (add_flow) only internal flows can set " | |
3994 | "non-default values to hidden fields", ofproto->name); | |
3995 | return OFPERR_OFPBRC_EPERM; | |
3996 | } | |
3997 | } | |
3998 | ||
8037acb4 BP |
3999 | cls_rule_init(&cr, &fm->match, fm->priority); |
4000 | ||
b277c7cc | 4001 | /* Transform "add" into "modify" if there's an existing identical flow. */ |
8037acb4 | 4002 | rule = rule_from_cls_rule(classifier_find_rule_exactly(&table->cls, &cr)); |
b277c7cc | 4003 | if (rule) { |
834fe5cb BP |
4004 | struct rule_collection rules; |
4005 | ||
8037acb4 | 4006 | cls_rule_destroy(&cr); |
b277c7cc | 4007 | |
834fe5cb BP |
4008 | rule_collection_init(&rules); |
4009 | rule_collection_add(&rules, rule); | |
4010 | fm->modify_cookie = true; | |
4011 | error = modify_flows__(ofproto, fm, &rules, req); | |
4012 | rule_collection_destroy(&rules); | |
a8e547c1 | 4013 | |
834fe5cb | 4014 | return error; |
b277c7cc BP |
4015 | } |
4016 | ||
81a76618 | 4017 | /* Check for overlap, if requested. */ |
0fb88c18 | 4018 | if (fm->flags & OFPUTIL_FF_CHECK_OVERLAP) { |
afae68b1 | 4019 | if (classifier_rule_overlaps(&table->cls, &cr)) { |
8037acb4 | 4020 | cls_rule_destroy(&cr); |
c09f755d BP |
4021 | return OFPERR_OFPFMFC_OVERLAP; |
4022 | } | |
7ee20df1 | 4023 | } |
81a76618 | 4024 | |
8037acb4 | 4025 | /* If necessary, evict an existing rule to clear out space. */ |
834fe5cb | 4026 | error = evict_rules_from_table(table, 1); |
8037acb4 BP |
4027 | if (error) { |
4028 | cls_rule_destroy(&cr); | |
4029 | return error; | |
4030 | } | |
2e1ae200 | 4031 | |
8037acb4 BP |
4032 | /* Allocate new rule. */ |
4033 | rule = ofproto->ofproto_class->rule_alloc(); | |
4034 | if (!rule) { | |
4035 | cls_rule_destroy(&cr); | |
4036 | VLOG_WARN_RL(&rl, "%s: failed to create rule (%s)", | |
4037 | ofproto->name, ovs_strerror(error)); | |
4038 | return ENOMEM; | |
4039 | } | |
4040 | ||
4041 | /* Initialize base state. */ | |
49a0e0eb BP |
4042 | *CONST_CAST(struct ofproto **, &rule->ofproto) = ofproto; |
4043 | cls_rule_move(CONST_CAST(struct cls_rule *, &rule->cr), &cr); | |
37bec3d3 | 4044 | ovs_refcount_init(&rule->ref_count); |
623e1caf | 4045 | rule->flow_cookie = fm->new_cookie; |
dc437090 | 4046 | rule->created = rule->modified = time_msec(); |
a3779dbc | 4047 | |
d10976b7 BP |
4048 | ovs_mutex_init(&rule->mutex); |
4049 | ovs_mutex_lock(&rule->mutex); | |
7ee20df1 BP |
4050 | rule->idle_timeout = fm->idle_timeout; |
4051 | rule->hard_timeout = fm->hard_timeout; | |
d10976b7 | 4052 | ovs_mutex_unlock(&rule->mutex); |
a3779dbc | 4053 | |
49a0e0eb | 4054 | *CONST_CAST(uint8_t *, &rule->table_id) = table - ofproto->tables; |
3f517bcd | 4055 | rule->flags = fm->flags & OFPUTIL_FF_STATE; |
4c7562c5 | 4056 | actions = rule_actions_create(fm->ofpacts, fm->ofpacts_len); |
062fea06 | 4057 | ovsrcu_set(&rule->actions, actions); |
9cae45dc | 4058 | list_init(&rule->meter_list_node); |
254750ce | 4059 | rule->eviction_group = NULL; |
e503cc19 | 4060 | list_init(&rule->expirable); |
2b07c8b1 BP |
4061 | rule->monitor_flags = 0; |
4062 | rule->add_seqno = 0; | |
4063 | rule->modify_seqno = 0; | |
7ee20df1 | 4064 | |
8037acb4 | 4065 | /* Construct rule, initializing derived state. */ |
b277c7cc BP |
4066 | error = ofproto->ofproto_class->rule_construct(rule); |
4067 | if (error) { | |
8037acb4 BP |
4068 | ofproto_rule_destroy__(rule); |
4069 | return error; | |
064af421 | 4070 | } |
8037acb4 | 4071 | |
062fea06 BP |
4072 | if (fm->hard_timeout || fm->idle_timeout) { |
4073 | list_insert(&ofproto->expirable, &rule->expirable); | |
4074 | } | |
4075 | cookies_insert(ofproto, rule); | |
4076 | eviction_group_add_rule(rule); | |
4c7562c5 | 4077 | if (actions->has_meter) { |
062fea06 BP |
4078 | meter_insert_rule(rule); |
4079 | } | |
1ebeaaa7 | 4080 | |
062fea06 | 4081 | classifier_insert(&table->cls, CONST_CAST(struct cls_rule *, &rule->cr)); |
8037acb4 | 4082 | |
b20f4073 | 4083 | error = ofproto->ofproto_class->rule_insert(rule); |
834fe5cb BP |
4084 | if (error) { |
4085 | oftable_remove_rule(rule); | |
4086 | ofproto_rule_unref(rule); | |
4087 | return error; | |
4088 | } | |
35f48b8b | 4089 | learned_cookies_inc(ofproto, actions); |
062fea06 | 4090 | |
834fe5cb BP |
4091 | if (minimask_get_vid_mask(&rule->cr.match.mask) == VLAN_VID_MASK) { |
4092 | if (ofproto->vlan_bitmap) { | |
4093 | uint16_t vid = miniflow_get_vid(&rule->cr.match.flow); | |
4094 | if (!bitmap_is_set(ofproto->vlan_bitmap, vid)) { | |
4095 | bitmap_set1(ofproto->vlan_bitmap, vid); | |
4096 | ofproto->vlans_changed = true; | |
4097 | } | |
4098 | } else { | |
4099 | ofproto->vlans_changed = true; | |
4100 | } | |
4101 | } | |
4102 | ||
4103 | ofmonitor_report(ofproto->connmgr, rule, NXFME_ADDED, 0, | |
cdbdeeda | 4104 | req ? req->ofconn : NULL, req ? req->xid : 0, NULL); |
834fe5cb BP |
4105 | |
4106 | return req ? send_buffered_packet(req->ofconn, fm->buffer_id, rule) : 0; | |
064af421 | 4107 | } |
79eee1eb BP |
4108 | \f |
4109 | /* OFPFC_MODIFY and OFPFC_MODIFY_STRICT. */ | |
064af421 | 4110 | |
9ed18e46 BP |
4111 | /* Modifies the rules listed in 'rules', changing their actions to match those |
4112 | * in 'fm'. | |
79eee1eb | 4113 | * |
9ed18e46 BP |
4114 | * 'ofconn' is used to retrieve the packet buffer specified in fm->buffer_id, |
4115 | * if any. | |
4116 | * | |
4117 | * Returns 0 on success, otherwise an OpenFlow error code. */ | |
90bf1e07 | 4118 | static enum ofperr |
baae3d02 BP |
4119 | modify_flows__(struct ofproto *ofproto, struct ofputil_flow_mod *fm, |
4120 | const struct rule_collection *rules, | |
4121 | const struct flow_mod_requester *req) | |
15aaf599 | 4122 | OVS_REQUIRES(ofproto_mutex) |
79eee1eb | 4123 | { |
35f48b8b | 4124 | struct list dead_cookies = LIST_INITIALIZER(&dead_cookies); |
834fe5cb | 4125 | enum nx_flow_update_event event; |
a8e547c1 | 4126 | size_t i; |
79eee1eb | 4127 | |
af822017 BP |
4128 | if (ofproto->ofproto_class->rule_premodify_actions) { |
4129 | for (i = 0; i < rules->n; i++) { | |
4130 | struct rule *rule = rules->rules[i]; | |
cb220b39 | 4131 | enum ofperr error; |
af822017 | 4132 | |
dd51dae2 BP |
4133 | error = ofproto->ofproto_class->rule_premodify_actions( |
4134 | rule, fm->ofpacts, fm->ofpacts_len); | |
4135 | if (error) { | |
4136 | return error; | |
af822017 BP |
4137 | } |
4138 | } | |
4139 | } | |
4140 | ||
834fe5cb | 4141 | event = fm->command == OFPFC_ADD ? NXFME_ADDED : NXFME_MODIFIED; |
a8e547c1 BP |
4142 | for (i = 0; i < rules->n; i++) { |
4143 | struct rule *rule = rules->rules[i]; | |
08043761 | 4144 | |
834fe5cb BP |
4145 | /* 'fm' says that */ |
4146 | bool change_cookie = (fm->modify_cookie | |
4147 | && fm->new_cookie != OVS_BE64_MAX | |
4148 | && fm->new_cookie != rule->flow_cookie); | |
2e1ae200 | 4149 | |
834fe5cb BP |
4150 | const struct rule_actions *actions = rule_get_actions(rule); |
4151 | bool change_actions = !ofpacts_equal(fm->ofpacts, fm->ofpacts_len, | |
4152 | actions->ofpacts, | |
4153 | actions->ofpacts_len); | |
5c67e4af | 4154 | |
834fe5cb | 4155 | bool reset_counters = (fm->flags & OFPUTIL_FF_RESET_COUNTS) != 0; |
a7d94793 | 4156 | |
834fe5cb BP |
4157 | long long int now = time_msec(); |
4158 | ||
4159 | /* FIXME: Implement OFPFUTIL_FF_RESET_COUNTS */ | |
98eaac36 | 4160 | |
834fe5cb BP |
4161 | if (change_cookie) { |
4162 | cookies_remove(ofproto, rule); | |
98eaac36 | 4163 | } |
834fe5cb BP |
4164 | |
4165 | ovs_mutex_lock(&rule->mutex); | |
4166 | if (fm->command == OFPFC_ADD) { | |
b277c7cc BP |
4167 | rule->idle_timeout = fm->idle_timeout; |
4168 | rule->hard_timeout = fm->hard_timeout; | |
3f517bcd | 4169 | rule->flags = fm->flags & OFPUTIL_FF_STATE; |
834fe5cb BP |
4170 | rule->created = now; |
4171 | } | |
4172 | if (change_cookie) { | |
4173 | rule->flow_cookie = fm->new_cookie; | |
4174 | } | |
4175 | rule->modified = now; | |
4176 | ovs_mutex_unlock(&rule->mutex); | |
4177 | ||
4178 | if (change_cookie) { | |
4179 | cookies_insert(ofproto, rule); | |
4180 | } | |
4181 | if (fm->command == OFPFC_ADD) { | |
b277c7cc BP |
4182 | if (fm->idle_timeout || fm->hard_timeout) { |
4183 | if (!rule->eviction_group) { | |
4184 | eviction_group_add_rule(rule); | |
4185 | } | |
4186 | } else { | |
4187 | eviction_group_remove_rule(rule); | |
4188 | } | |
4189 | } | |
4190 | ||
834fe5cb | 4191 | if (change_actions) { |
4c7562c5 | 4192 | ovsrcu_set(&rule->actions, rule_actions_create(fm->ofpacts, |
834fe5cb | 4193 | fm->ofpacts_len)); |
834fe5cb | 4194 | } |
884e1dc4 | 4195 | |
834fe5cb | 4196 | if (change_actions || reset_counters) { |
af822017 | 4197 | ofproto->ofproto_class->rule_modify_actions(rule, reset_counters); |
623e1caf | 4198 | } |
834fe5cb BP |
4199 | |
4200 | if (event != NXFME_MODIFIED || change_actions || change_cookie) { | |
4201 | ofmonitor_report(ofproto->connmgr, rule, event, 0, | |
cdbdeeda SH |
4202 | req ? req->ofconn : NULL, req ? req->xid : 0, |
4203 | change_actions ? actions : NULL); | |
834fe5cb | 4204 | } |
35f48b8b BP |
4205 | |
4206 | if (change_actions) { | |
4207 | learned_cookies_inc(ofproto, rule_get_actions(rule)); | |
4208 | learned_cookies_dec(ofproto, actions, &dead_cookies); | |
cdbdeeda | 4209 | rule_actions_destroy(actions); |
35f48b8b | 4210 | } |
834fe5cb | 4211 | } |
35f48b8b | 4212 | learned_cookies_flush(ofproto, &dead_cookies); |
834fe5cb BP |
4213 | |
4214 | if (fm->buffer_id != UINT32_MAX && req) { | |
cb220b39 SH |
4215 | return send_buffered_packet(req->ofconn, fm->buffer_id, |
4216 | rules->rules[0]); | |
5ecc9d81 | 4217 | } |
79eee1eb | 4218 | |
cb220b39 | 4219 | return 0; |
9ed18e46 BP |
4220 | } |
4221 | ||
9387b970 | 4222 | static enum ofperr |
baae3d02 BP |
4223 | modify_flows_add(struct ofproto *ofproto, struct ofputil_flow_mod *fm, |
4224 | const struct flow_mod_requester *req) | |
15aaf599 | 4225 | OVS_REQUIRES(ofproto_mutex) |
9387b970 | 4226 | { |
b8266395 | 4227 | if (fm->cookie_mask != htonll(0) || fm->new_cookie == OVS_BE64_MAX) { |
9387b970 SH |
4228 | return 0; |
4229 | } | |
baae3d02 | 4230 | return add_flow(ofproto, fm, req); |
9387b970 SH |
4231 | } |
4232 | ||
90bf1e07 BP |
4233 | /* Implements OFPFC_MODIFY. Returns 0 on success or an OpenFlow error code on |
4234 | * failure. | |
9ed18e46 BP |
4235 | * |
4236 | * 'ofconn' is used to retrieve the packet buffer specified in fm->buffer_id, | |
4237 | * if any. */ | |
90bf1e07 | 4238 | static enum ofperr |
baae3d02 BP |
4239 | modify_flows_loose(struct ofproto *ofproto, struct ofputil_flow_mod *fm, |
4240 | const struct flow_mod_requester *req) | |
15aaf599 | 4241 | OVS_REQUIRES(ofproto_mutex) |
9ed18e46 | 4242 | { |
a9b22b7f | 4243 | struct rule_criteria criteria; |
a8e547c1 | 4244 | struct rule_collection rules; |
9ed18e46 BP |
4245 | int error; |
4246 | ||
a9b22b7f BP |
4247 | rule_criteria_init(&criteria, fm->table_id, &fm->match, 0, |
4248 | fm->cookie, fm->cookie_mask, OFPP_ANY, OFPG11_ANY); | |
dd51dae2 BP |
4249 | rule_criteria_require_rw(&criteria, |
4250 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
a9b22b7f BP |
4251 | error = collect_rules_loose(ofproto, &criteria, &rules); |
4252 | rule_criteria_destroy(&criteria); | |
4253 | ||
a8e547c1 BP |
4254 | if (!error) { |
4255 | error = (rules.n > 0 | |
baae3d02 BP |
4256 | ? modify_flows__(ofproto, fm, &rules, req) |
4257 | : modify_flows_add(ofproto, fm, req)); | |
623e1caf | 4258 | } |
a8e547c1 BP |
4259 | |
4260 | rule_collection_destroy(&rules); | |
4261 | ||
4262 | return error; | |
79eee1eb BP |
4263 | } |
4264 | ||
4265 | /* Implements OFPFC_MODIFY_STRICT. Returns 0 on success or an OpenFlow error | |
baae3d02 | 4266 | * code on failure. */ |
90bf1e07 | 4267 | static enum ofperr |
baae3d02 BP |
4268 | modify_flow_strict(struct ofproto *ofproto, struct ofputil_flow_mod *fm, |
4269 | const struct flow_mod_requester *req) | |
15aaf599 | 4270 | OVS_REQUIRES(ofproto_mutex) |
79eee1eb | 4271 | { |
a9b22b7f | 4272 | struct rule_criteria criteria; |
a8e547c1 | 4273 | struct rule_collection rules; |
6c1491fb BP |
4274 | int error; |
4275 | ||
a9b22b7f BP |
4276 | rule_criteria_init(&criteria, fm->table_id, &fm->match, fm->priority, |
4277 | fm->cookie, fm->cookie_mask, OFPP_ANY, OFPG11_ANY); | |
dd51dae2 BP |
4278 | rule_criteria_require_rw(&criteria, |
4279 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
a9b22b7f BP |
4280 | error = collect_rules_strict(ofproto, &criteria, &rules); |
4281 | rule_criteria_destroy(&criteria); | |
4282 | ||
a8e547c1 BP |
4283 | if (!error) { |
4284 | if (rules.n == 0) { | |
baae3d02 | 4285 | error = modify_flows_add(ofproto, fm, req); |
a8e547c1 | 4286 | } else if (rules.n == 1) { |
baae3d02 | 4287 | error = modify_flows__(ofproto, fm, &rules, req); |
a8e547c1 | 4288 | } |
623e1caf | 4289 | } |
a8e547c1 BP |
4290 | |
4291 | rule_collection_destroy(&rules); | |
4292 | ||
4293 | return error; | |
79eee1eb | 4294 | } |
9ed18e46 BP |
4295 | \f |
4296 | /* OFPFC_DELETE implementation. */ | |
79eee1eb | 4297 | |
9ca4a86f | 4298 | /* Deletes the rules listed in 'rules'. */ |
254750ce | 4299 | static void |
9ca4a86f | 4300 | delete_flows__(const struct rule_collection *rules, |
baae3d02 BP |
4301 | enum ofp_flow_removed_reason reason, |
4302 | const struct flow_mod_requester *req) | |
15aaf599 | 4303 | OVS_REQUIRES(ofproto_mutex) |
064af421 | 4304 | { |
9ca4a86f | 4305 | if (rules->n) { |
35f48b8b | 4306 | struct list dead_cookies = LIST_INITIALIZER(&dead_cookies); |
9ca4a86f BP |
4307 | struct ofproto *ofproto = rules->rules[0]->ofproto; |
4308 | size_t i; | |
79eee1eb | 4309 | |
9ca4a86f BP |
4310 | for (i = 0; i < rules->n; i++) { |
4311 | struct rule *rule = rules->rules[i]; | |
35f48b8b | 4312 | const struct rule_actions *actions = rule_get_actions(rule); |
79eee1eb | 4313 | |
9ca4a86f BP |
4314 | ofproto_rule_send_removed(rule, reason); |
4315 | ||
4316 | ofmonitor_report(ofproto->connmgr, rule, NXFME_DELETED, reason, | |
cdbdeeda SH |
4317 | req ? req->ofconn : NULL, req ? req->xid : 0, |
4318 | NULL); | |
9ca4a86f BP |
4319 | oftable_remove_rule(rule); |
4320 | ofproto->ofproto_class->rule_delete(rule); | |
35f48b8b BP |
4321 | |
4322 | learned_cookies_dec(ofproto, actions, &dead_cookies); | |
9ca4a86f | 4323 | } |
35f48b8b | 4324 | learned_cookies_flush(ofproto, &dead_cookies); |
9ca4a86f BP |
4325 | ofmonitor_flush(ofproto->connmgr); |
4326 | } | |
79eee1eb | 4327 | } |
79eee1eb BP |
4328 | |
4329 | /* Implements OFPFC_DELETE. */ | |
90bf1e07 | 4330 | static enum ofperr |
baae3d02 | 4331 | delete_flows_loose(struct ofproto *ofproto, |
7024dffe | 4332 | const struct ofputil_flow_mod *fm, |
baae3d02 | 4333 | const struct flow_mod_requester *req) |
15aaf599 | 4334 | OVS_REQUIRES(ofproto_mutex) |
79eee1eb | 4335 | { |
a9b22b7f | 4336 | struct rule_criteria criteria; |
a8e547c1 | 4337 | struct rule_collection rules; |
90bf1e07 | 4338 | enum ofperr error; |
064af421 | 4339 | |
a9b22b7f BP |
4340 | rule_criteria_init(&criteria, fm->table_id, &fm->match, 0, |
4341 | fm->cookie, fm->cookie_mask, | |
4342 | fm->out_port, fm->out_group); | |
dd51dae2 BP |
4343 | rule_criteria_require_rw(&criteria, |
4344 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
a9b22b7f BP |
4345 | error = collect_rules_loose(ofproto, &criteria, &rules); |
4346 | rule_criteria_destroy(&criteria); | |
4347 | ||
a8e547c1 | 4348 | if (!error && rules.n > 0) { |
9ca4a86f | 4349 | delete_flows__(&rules, fm->delete_reason, req); |
a8e547c1 BP |
4350 | } |
4351 | rule_collection_destroy(&rules); | |
4352 | ||
4353 | return error; | |
064af421 BP |
4354 | } |
4355 | ||
79eee1eb | 4356 | /* Implements OFPFC_DELETE_STRICT. */ |
90bf1e07 | 4357 | static enum ofperr |
baae3d02 BP |
4358 | delete_flow_strict(struct ofproto *ofproto, const struct ofputil_flow_mod *fm, |
4359 | const struct flow_mod_requester *req) | |
15aaf599 | 4360 | OVS_REQUIRES(ofproto_mutex) |
79eee1eb | 4361 | { |
a9b22b7f | 4362 | struct rule_criteria criteria; |
a8e547c1 | 4363 | struct rule_collection rules; |
90bf1e07 | 4364 | enum ofperr error; |
79eee1eb | 4365 | |
a9b22b7f BP |
4366 | rule_criteria_init(&criteria, fm->table_id, &fm->match, fm->priority, |
4367 | fm->cookie, fm->cookie_mask, | |
4368 | fm->out_port, fm->out_group); | |
dd51dae2 BP |
4369 | rule_criteria_require_rw(&criteria, |
4370 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
a9b22b7f BP |
4371 | error = collect_rules_strict(ofproto, &criteria, &rules); |
4372 | rule_criteria_destroy(&criteria); | |
4373 | ||
a8e547c1 | 4374 | if (!error && rules.n > 0) { |
9ca4a86f | 4375 | delete_flows__(&rules, fm->delete_reason, req); |
a8e547c1 BP |
4376 | } |
4377 | rule_collection_destroy(&rules); | |
4378 | ||
4379 | return error; | |
abe529af BP |
4380 | } |
4381 | ||
4382 | static void | |
4383 | ofproto_rule_send_removed(struct rule *rule, uint8_t reason) | |
15aaf599 | 4384 | OVS_REQUIRES(ofproto_mutex) |
abe529af BP |
4385 | { |
4386 | struct ofputil_flow_removed fr; | |
dc437090 | 4387 | long long int used; |
abe529af | 4388 | |
834fe5cb BP |
4389 | if (rule_is_hidden(rule) || |
4390 | !(rule->flags & OFPUTIL_FF_SEND_FLOW_REM)) { | |
abe529af BP |
4391 | return; |
4392 | } | |
4393 | ||
5cb7a798 | 4394 | minimatch_expand(&rule->cr.match, &fr.match); |
81a76618 | 4395 | fr.priority = rule->cr.priority; |
abe529af BP |
4396 | fr.cookie = rule->flow_cookie; |
4397 | fr.reason = reason; | |
95216219 | 4398 | fr.table_id = rule->table_id; |
65e0be10 BP |
4399 | calc_duration(rule->created, time_msec(), |
4400 | &fr.duration_sec, &fr.duration_nsec); | |
d10976b7 | 4401 | ovs_mutex_lock(&rule->mutex); |
abe529af | 4402 | fr.idle_timeout = rule->idle_timeout; |
fa2bad0f | 4403 | fr.hard_timeout = rule->hard_timeout; |
d10976b7 | 4404 | ovs_mutex_unlock(&rule->mutex); |
abe529af | 4405 | rule->ofproto->ofproto_class->rule_get_stats(rule, &fr.packet_count, |
dc437090 | 4406 | &fr.byte_count, &used); |
abe529af BP |
4407 | |
4408 | connmgr_send_flow_removed(rule->ofproto->connmgr, &fr); | |
4409 | } | |
4410 | ||
4411 | /* Sends an OpenFlow "flow removed" message with the given 'reason' (either | |
4412 | * OFPRR_HARD_TIMEOUT or OFPRR_IDLE_TIMEOUT), and then removes 'rule' from its | |
4413 | * ofproto. | |
4414 | * | |
4415 | * ofproto implementation ->run() functions should use this function to expire | |
4416 | * OpenFlow flows. */ | |
4417 | void | |
4418 | ofproto_rule_expire(struct rule *rule, uint8_t reason) | |
15aaf599 | 4419 | OVS_REQUIRES(ofproto_mutex) |
abe529af | 4420 | { |
b20f4073 | 4421 | ofproto_rule_delete__(rule, reason); |
79eee1eb | 4422 | } |
994c9973 BP |
4423 | |
4424 | /* Reduces '*timeout' to no more than 'max'. A value of zero in either case | |
4425 | * means "infinite". */ | |
4426 | static void | |
4427 | reduce_timeout(uint16_t max, uint16_t *timeout) | |
4428 | { | |
4429 | if (max && (!*timeout || *timeout > max)) { | |
4430 | *timeout = max; | |
4431 | } | |
4432 | } | |
4433 | ||
4434 | /* If 'idle_timeout' is nonzero, and 'rule' has no idle timeout or an idle | |
4435 | * timeout greater than 'idle_timeout', lowers 'rule''s idle timeout to | |
4436 | * 'idle_timeout' seconds. Similarly for 'hard_timeout'. | |
4437 | * | |
4438 | * Suitable for implementing OFPACT_FIN_TIMEOUT. */ | |
4439 | void | |
4440 | ofproto_rule_reduce_timeouts(struct rule *rule, | |
4441 | uint16_t idle_timeout, uint16_t hard_timeout) | |
d10976b7 | 4442 | OVS_EXCLUDED(ofproto_mutex, rule->mutex) |
994c9973 BP |
4443 | { |
4444 | if (!idle_timeout && !hard_timeout) { | |
4445 | return; | |
4446 | } | |
4447 | ||
abe7b10f | 4448 | ovs_mutex_lock(&ofproto_mutex); |
994c9973 BP |
4449 | if (list_is_empty(&rule->expirable)) { |
4450 | list_insert(&rule->ofproto->expirable, &rule->expirable); | |
4451 | } | |
abe7b10f | 4452 | ovs_mutex_unlock(&ofproto_mutex); |
994c9973 | 4453 | |
d10976b7 | 4454 | ovs_mutex_lock(&rule->mutex); |
994c9973 BP |
4455 | reduce_timeout(idle_timeout, &rule->idle_timeout); |
4456 | reduce_timeout(hard_timeout, &rule->hard_timeout); | |
d10976b7 | 4457 | ovs_mutex_unlock(&rule->mutex); |
994c9973 | 4458 | } |
79eee1eb | 4459 | \f |
90bf1e07 | 4460 | static enum ofperr |
2e4f5fcf | 4461 | handle_flow_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
15aaf599 | 4462 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 4463 | { |
a5b8d268 | 4464 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
a9a2da38 | 4465 | struct ofputil_flow_mod fm; |
f25d0cf3 BP |
4466 | uint64_t ofpacts_stub[1024 / 8]; |
4467 | struct ofpbuf ofpacts; | |
90bf1e07 | 4468 | enum ofperr error; |
064af421 | 4469 | |
76589937 | 4470 | error = reject_slave_controller(ofconn); |
9deba63b | 4471 | if (error) { |
f25d0cf3 | 4472 | goto exit; |
9deba63b | 4473 | } |
3052b0c5 | 4474 | |
f25d0cf3 BP |
4475 | ofpbuf_use_stub(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); |
4476 | error = ofputil_decode_flow_mod(&fm, oh, ofconn_get_protocol(ofconn), | |
7e9f8266 BP |
4477 | &ofpacts, |
4478 | u16_to_ofp(ofproto->max_ports), | |
4479 | ofproto->n_tables); | |
4480 | if (!error) { | |
4481 | error = ofproto_check_ofpacts(ofproto, fm.ofpacts, fm.ofpacts_len); | |
4482 | } | |
548de4dd | 4483 | if (!error) { |
baae3d02 BP |
4484 | struct flow_mod_requester req; |
4485 | ||
4486 | req.ofconn = ofconn; | |
834fe5cb | 4487 | req.xid = oh->xid; |
baae3d02 | 4488 | error = handle_flow_mod__(ofproto, &fm, &req); |
49bdc010 | 4489 | } |
a5b8d268 | 4490 | if (error) { |
f25d0cf3 | 4491 | goto exit_free_ofpacts; |
a5b8d268 | 4492 | } |
2e310801 | 4493 | |
696d1bcf | 4494 | ofconn_report_flow_mod(ofconn, fm.command); |
a5b8d268 | 4495 | |
f25d0cf3 BP |
4496 | exit_free_ofpacts: |
4497 | ofpbuf_uninit(&ofpacts); | |
4498 | exit: | |
4499 | return error; | |
75a75043 BP |
4500 | } |
4501 | ||
90bf1e07 | 4502 | static enum ofperr |
baae3d02 BP |
4503 | handle_flow_mod__(struct ofproto *ofproto, struct ofputil_flow_mod *fm, |
4504 | const struct flow_mod_requester *req) | |
15aaf599 | 4505 | OVS_EXCLUDED(ofproto_mutex) |
75a75043 | 4506 | { |
35412852 | 4507 | enum ofperr error; |
75a75043 | 4508 | |
15aaf599 | 4509 | ovs_mutex_lock(&ofproto_mutex); |
baae3d02 BP |
4510 | switch (fm->command) { |
4511 | case OFPFC_ADD: | |
4512 | error = add_flow(ofproto, fm, req); | |
4513 | break; | |
3052b0c5 | 4514 | |
baae3d02 BP |
4515 | case OFPFC_MODIFY: |
4516 | error = modify_flows_loose(ofproto, fm, req); | |
4517 | break; | |
3052b0c5 | 4518 | |
baae3d02 BP |
4519 | case OFPFC_MODIFY_STRICT: |
4520 | error = modify_flow_strict(ofproto, fm, req); | |
4521 | break; | |
3052b0c5 | 4522 | |
baae3d02 BP |
4523 | case OFPFC_DELETE: |
4524 | error = delete_flows_loose(ofproto, fm, req); | |
4525 | break; | |
3052b0c5 | 4526 | |
baae3d02 BP |
4527 | case OFPFC_DELETE_STRICT: |
4528 | error = delete_flow_strict(ofproto, fm, req); | |
4529 | break; | |
3052b0c5 | 4530 | |
baae3d02 BP |
4531 | default: |
4532 | if (fm->command > 0xff) { | |
4533 | VLOG_WARN_RL(&rl, "%s: flow_mod has explicit table_id but " | |
4534 | "flow_mod_table_id extension is not enabled", | |
4535 | ofproto->name); | |
6c1491fb | 4536 | } |
baae3d02 BP |
4537 | error = OFPERR_OFPFMFC_BAD_COMMAND; |
4538 | break; | |
3052b0c5 | 4539 | } |
baae3d02 | 4540 | ofmonitor_flush(ofproto->connmgr); |
15aaf599 | 4541 | ovs_mutex_unlock(&ofproto_mutex); |
35412852 BP |
4542 | |
4543 | run_rule_executes(ofproto); | |
4544 | return error; | |
3052b0c5 BP |
4545 | } |
4546 | ||
90bf1e07 | 4547 | static enum ofperr |
d1e2cf21 | 4548 | handle_role_request(struct ofconn *ofconn, const struct ofp_header *oh) |
9deba63b | 4549 | { |
f4f1ea7e BP |
4550 | struct ofputil_role_request request; |
4551 | struct ofputil_role_request reply; | |
9deba63b | 4552 | struct ofpbuf *buf; |
6ea4776b JR |
4553 | enum ofperr error; |
4554 | ||
f4f1ea7e | 4555 | error = ofputil_decode_role_message(oh, &request); |
6ea4776b JR |
4556 | if (error) { |
4557 | return error; | |
4558 | } | |
9deba63b | 4559 | |
f4f1ea7e | 4560 | if (request.role != OFPCR12_ROLE_NOCHANGE) { |
f4f1ea7e BP |
4561 | if (request.have_generation_id |
4562 | && !ofconn_set_master_election_id(ofconn, request.generation_id)) { | |
4563 | return OFPERR_OFPRRFC_STALE; | |
6ea4776b | 4564 | } |
6ea4776b | 4565 | |
f4f1ea7e BP |
4566 | ofconn_set_role(ofconn, request.role); |
4567 | } | |
9deba63b | 4568 | |
f4f1ea7e | 4569 | reply.role = ofconn_get_role(ofconn); |
147cc9d3 BP |
4570 | reply.have_generation_id = ofconn_get_master_election_id( |
4571 | ofconn, &reply.generation_id); | |
f4f1ea7e | 4572 | buf = ofputil_encode_role_reply(oh, &reply); |
b0421aa2 | 4573 | ofconn_send_reply(ofconn, buf); |
9deba63b BP |
4574 | |
4575 | return 0; | |
4576 | } | |
4577 | ||
90bf1e07 | 4578 | static enum ofperr |
6c1491fb BP |
4579 | handle_nxt_flow_mod_table_id(struct ofconn *ofconn, |
4580 | const struct ofp_header *oh) | |
4581 | { | |
982697a4 | 4582 | const struct nx_flow_mod_table_id *msg = ofpmsg_body(oh); |
27527aa0 BP |
4583 | enum ofputil_protocol cur, next; |
4584 | ||
4585 | cur = ofconn_get_protocol(ofconn); | |
4586 | next = ofputil_protocol_set_tid(cur, msg->set != 0); | |
4587 | ofconn_set_protocol(ofconn, next); | |
6c1491fb | 4588 | |
6c1491fb BP |
4589 | return 0; |
4590 | } | |
4591 | ||
90bf1e07 | 4592 | static enum ofperr |
d1e2cf21 | 4593 | handle_nxt_set_flow_format(struct ofconn *ofconn, const struct ofp_header *oh) |
09246b99 | 4594 | { |
982697a4 | 4595 | const struct nx_set_flow_format *msg = ofpmsg_body(oh); |
27527aa0 BP |
4596 | enum ofputil_protocol cur, next; |
4597 | enum ofputil_protocol next_base; | |
09246b99 | 4598 | |
27527aa0 BP |
4599 | next_base = ofputil_nx_flow_format_to_protocol(ntohl(msg->format)); |
4600 | if (!next_base) { | |
90bf1e07 | 4601 | return OFPERR_OFPBRC_EPERM; |
09246b99 | 4602 | } |
7ee20df1 | 4603 | |
27527aa0 BP |
4604 | cur = ofconn_get_protocol(ofconn); |
4605 | next = ofputil_protocol_set_base(cur, next_base); | |
27527aa0 | 4606 | ofconn_set_protocol(ofconn, next); |
b20f4073 | 4607 | |
7ee20df1 | 4608 | return 0; |
09246b99 BP |
4609 | } |
4610 | ||
90bf1e07 | 4611 | static enum ofperr |
54834960 EJ |
4612 | handle_nxt_set_packet_in_format(struct ofconn *ofconn, |
4613 | const struct ofp_header *oh) | |
4614 | { | |
982697a4 | 4615 | const struct nx_set_packet_in_format *msg = ofpmsg_body(oh); |
54834960 EJ |
4616 | uint32_t format; |
4617 | ||
54834960 | 4618 | format = ntohl(msg->format); |
a15f0eeb | 4619 | if (format != NXPIF_OPENFLOW10 && format != NXPIF_NXM) { |
90bf1e07 | 4620 | return OFPERR_OFPBRC_EPERM; |
54834960 EJ |
4621 | } |
4622 | ||
54834960 EJ |
4623 | ofconn_set_packet_in_format(ofconn, format); |
4624 | return 0; | |
4625 | } | |
4626 | ||
80d5aefd BP |
4627 | static enum ofperr |
4628 | handle_nxt_set_async_config(struct ofconn *ofconn, const struct ofp_header *oh) | |
4629 | { | |
982697a4 | 4630 | const struct nx_async_config *msg = ofpmsg_body(oh); |
80d5aefd BP |
4631 | uint32_t master[OAM_N_TYPES]; |
4632 | uint32_t slave[OAM_N_TYPES]; | |
4633 | ||
4634 | master[OAM_PACKET_IN] = ntohl(msg->packet_in_mask[0]); | |
4635 | master[OAM_PORT_STATUS] = ntohl(msg->port_status_mask[0]); | |
4636 | master[OAM_FLOW_REMOVED] = ntohl(msg->flow_removed_mask[0]); | |
4637 | ||
4638 | slave[OAM_PACKET_IN] = ntohl(msg->packet_in_mask[1]); | |
4639 | slave[OAM_PORT_STATUS] = ntohl(msg->port_status_mask[1]); | |
4640 | slave[OAM_FLOW_REMOVED] = ntohl(msg->flow_removed_mask[1]); | |
4641 | ||
4642 | ofconn_set_async_config(ofconn, master, slave); | |
4550b647 MM |
4643 | if (ofconn_get_type(ofconn) == OFCONN_SERVICE && |
4644 | !ofconn_get_miss_send_len(ofconn)) { | |
4645 | ofconn_set_miss_send_len(ofconn, OFP_DEFAULT_MISS_SEND_LEN); | |
4646 | } | |
80d5aefd BP |
4647 | |
4648 | return 0; | |
4649 | } | |
4650 | ||
c423b3b3 AC |
4651 | static enum ofperr |
4652 | handle_nxt_get_async_request(struct ofconn *ofconn, const struct ofp_header *oh) | |
4653 | { | |
4654 | struct ofpbuf *buf; | |
4655 | uint32_t master[OAM_N_TYPES]; | |
4656 | uint32_t slave[OAM_N_TYPES]; | |
4657 | struct nx_async_config *msg; | |
4658 | ||
4659 | ofconn_get_async_config(ofconn, master, slave); | |
4660 | buf = ofpraw_alloc_reply(OFPRAW_OFPT13_GET_ASYNC_REPLY, oh, 0); | |
4661 | msg = ofpbuf_put_zeros(buf, sizeof *msg); | |
4662 | ||
4663 | msg->packet_in_mask[0] = htonl(master[OAM_PACKET_IN]); | |
4664 | msg->port_status_mask[0] = htonl(master[OAM_PORT_STATUS]); | |
4665 | msg->flow_removed_mask[0] = htonl(master[OAM_FLOW_REMOVED]); | |
4666 | ||
4667 | msg->packet_in_mask[1] = htonl(slave[OAM_PACKET_IN]); | |
4668 | msg->port_status_mask[1] = htonl(slave[OAM_PORT_STATUS]); | |
4669 | msg->flow_removed_mask[1] = htonl(slave[OAM_FLOW_REMOVED]); | |
4670 | ||
4671 | ofconn_send_reply(ofconn, buf); | |
4672 | ||
4673 | return 0; | |
4674 | } | |
4675 | ||
a7349929 BP |
4676 | static enum ofperr |
4677 | handle_nxt_set_controller_id(struct ofconn *ofconn, | |
4678 | const struct ofp_header *oh) | |
4679 | { | |
982697a4 | 4680 | const struct nx_controller_id *nci = ofpmsg_body(oh); |
a7349929 | 4681 | |
a7349929 BP |
4682 | if (!is_all_zeros(nci->zero, sizeof nci->zero)) { |
4683 | return OFPERR_NXBRC_MUST_BE_ZERO; | |
4684 | } | |
4685 | ||
4686 | ofconn_set_controller_id(ofconn, ntohs(nci->controller_id)); | |
4687 | return 0; | |
4688 | } | |
4689 | ||
90bf1e07 | 4690 | static enum ofperr |
d1e2cf21 | 4691 | handle_barrier_request(struct ofconn *ofconn, const struct ofp_header *oh) |
246e61ea | 4692 | { |
246e61ea JP |
4693 | struct ofpbuf *buf; |
4694 | ||
982697a4 BP |
4695 | buf = ofpraw_alloc_reply((oh->version == OFP10_VERSION |
4696 | ? OFPRAW_OFPT10_BARRIER_REPLY | |
4697 | : OFPRAW_OFPT11_BARRIER_REPLY), oh, 0); | |
b0421aa2 | 4698 | ofconn_send_reply(ofconn, buf); |
246e61ea JP |
4699 | return 0; |
4700 | } | |
4701 | ||
2b07c8b1 BP |
4702 | static void |
4703 | ofproto_compose_flow_refresh_update(const struct rule *rule, | |
4704 | enum nx_flow_monitor_flags flags, | |
4705 | struct list *msgs) | |
15aaf599 | 4706 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 | 4707 | { |
6f00e29b | 4708 | const struct rule_actions *actions; |
2b07c8b1 | 4709 | struct ofputil_flow_update fu; |
5cb7a798 | 4710 | struct match match; |
2b07c8b1 | 4711 | |
2b07c8b1 BP |
4712 | fu.event = (flags & (NXFMF_INITIAL | NXFMF_ADD) |
4713 | ? NXFME_ADDED : NXFME_MODIFIED); | |
4714 | fu.reason = 0; | |
d10976b7 | 4715 | ovs_mutex_lock(&rule->mutex); |
2b07c8b1 BP |
4716 | fu.idle_timeout = rule->idle_timeout; |
4717 | fu.hard_timeout = rule->hard_timeout; | |
d10976b7 | 4718 | ovs_mutex_unlock(&rule->mutex); |
2b07c8b1 BP |
4719 | fu.table_id = rule->table_id; |
4720 | fu.cookie = rule->flow_cookie; | |
5cb7a798 BP |
4721 | minimatch_expand(&rule->cr.match, &match); |
4722 | fu.match = &match; | |
6b140a4e | 4723 | fu.priority = rule->cr.priority; |
6f00e29b | 4724 | |
b20f4073 | 4725 | actions = flags & NXFMF_ACTIONS ? rule_get_actions(rule) : NULL; |
6f00e29b BP |
4726 | fu.ofpacts = actions ? actions->ofpacts : NULL; |
4727 | fu.ofpacts_len = actions ? actions->ofpacts_len : 0; | |
2b07c8b1 BP |
4728 | |
4729 | if (list_is_empty(msgs)) { | |
4730 | ofputil_start_flow_update(msgs); | |
4731 | } | |
4732 | ofputil_append_flow_update(&fu, msgs); | |
4733 | } | |
4734 | ||
4735 | void | |
a8e547c1 BP |
4736 | ofmonitor_compose_refresh_updates(struct rule_collection *rules, |
4737 | struct list *msgs) | |
15aaf599 | 4738 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 | 4739 | { |
a8e547c1 | 4740 | size_t i; |
2b07c8b1 | 4741 | |
a8e547c1 BP |
4742 | for (i = 0; i < rules->n; i++) { |
4743 | struct rule *rule = rules->rules[i]; | |
2b07c8b1 BP |
4744 | enum nx_flow_monitor_flags flags = rule->monitor_flags; |
4745 | rule->monitor_flags = 0; | |
4746 | ||
4747 | ofproto_compose_flow_refresh_update(rule, flags, msgs); | |
4748 | } | |
4749 | } | |
4750 | ||
4751 | static void | |
4752 | ofproto_collect_ofmonitor_refresh_rule(const struct ofmonitor *m, | |
4753 | struct rule *rule, uint64_t seqno, | |
a8e547c1 | 4754 | struct rule_collection *rules) |
15aaf599 | 4755 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
4756 | { |
4757 | enum nx_flow_monitor_flags update; | |
4758 | ||
5e8b38b0 | 4759 | if (rule_is_hidden(rule)) { |
2b07c8b1 BP |
4760 | return; |
4761 | } | |
4762 | ||
b20f4073 | 4763 | if (!ofproto_rule_has_out_port(rule, m->out_port)) { |
2b07c8b1 BP |
4764 | return; |
4765 | } | |
4766 | ||
4767 | if (seqno) { | |
4768 | if (rule->add_seqno > seqno) { | |
4769 | update = NXFMF_ADD | NXFMF_MODIFY; | |
4770 | } else if (rule->modify_seqno > seqno) { | |
4771 | update = NXFMF_MODIFY; | |
4772 | } else { | |
4773 | return; | |
4774 | } | |
4775 | ||
4776 | if (!(m->flags & update)) { | |
4777 | return; | |
4778 | } | |
4779 | } else { | |
4780 | update = NXFMF_INITIAL; | |
4781 | } | |
4782 | ||
4783 | if (!rule->monitor_flags) { | |
a8e547c1 | 4784 | rule_collection_add(rules, rule); |
2b07c8b1 BP |
4785 | } |
4786 | rule->monitor_flags |= update | (m->flags & NXFMF_ACTIONS); | |
4787 | } | |
4788 | ||
4789 | static void | |
4790 | ofproto_collect_ofmonitor_refresh_rules(const struct ofmonitor *m, | |
4791 | uint64_t seqno, | |
a8e547c1 | 4792 | struct rule_collection *rules) |
15aaf599 | 4793 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
4794 | { |
4795 | const struct ofproto *ofproto = ofconn_get_ofproto(m->ofconn); | |
2b07c8b1 | 4796 | const struct oftable *table; |
81a76618 | 4797 | struct cls_rule target; |
2b07c8b1 | 4798 | |
5cb7a798 | 4799 | cls_rule_init_from_minimatch(&target, &m->match, 0); |
2b07c8b1 | 4800 | FOR_EACH_MATCHING_TABLE (table, m->table_id, ofproto) { |
2b07c8b1 BP |
4801 | struct rule *rule; |
4802 | ||
5f0476ce | 4803 | CLS_FOR_EACH_TARGET (rule, cr, &table->cls, &target) { |
2b07c8b1 BP |
4804 | ofproto_collect_ofmonitor_refresh_rule(m, rule, seqno, rules); |
4805 | } | |
4806 | } | |
48d28ac1 | 4807 | cls_rule_destroy(&target); |
2b07c8b1 BP |
4808 | } |
4809 | ||
4810 | static void | |
4811 | ofproto_collect_ofmonitor_initial_rules(struct ofmonitor *m, | |
a8e547c1 | 4812 | struct rule_collection *rules) |
15aaf599 | 4813 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
4814 | { |
4815 | if (m->flags & NXFMF_INITIAL) { | |
4816 | ofproto_collect_ofmonitor_refresh_rules(m, 0, rules); | |
4817 | } | |
4818 | } | |
4819 | ||
4820 | void | |
4821 | ofmonitor_collect_resume_rules(struct ofmonitor *m, | |
a8e547c1 | 4822 | uint64_t seqno, struct rule_collection *rules) |
15aaf599 | 4823 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
4824 | { |
4825 | ofproto_collect_ofmonitor_refresh_rules(m, seqno, rules); | |
4826 | } | |
4827 | ||
7b900689 SH |
4828 | static enum ofperr |
4829 | flow_monitor_delete(struct ofconn *ofconn, uint32_t id) | |
4830 | OVS_REQUIRES(ofproto_mutex) | |
4831 | { | |
4832 | struct ofmonitor *m; | |
4833 | enum ofperr error; | |
4834 | ||
4835 | m = ofmonitor_lookup(ofconn, id); | |
4836 | if (m) { | |
4837 | ofmonitor_destroy(m); | |
4838 | error = 0; | |
4839 | } else { | |
4840 | error = OFPERR_OFPMOFC_UNKNOWN_MONITOR; | |
4841 | } | |
4842 | ||
4843 | return error; | |
4844 | } | |
4845 | ||
2b07c8b1 | 4846 | static enum ofperr |
982697a4 | 4847 | handle_flow_monitor_request(struct ofconn *ofconn, const struct ofp_header *oh) |
15aaf599 | 4848 | OVS_EXCLUDED(ofproto_mutex) |
2b07c8b1 BP |
4849 | { |
4850 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
4851 | struct ofmonitor **monitors; | |
4852 | size_t n_monitors, allocated_monitors; | |
a8e547c1 | 4853 | struct rule_collection rules; |
2b07c8b1 BP |
4854 | struct list replies; |
4855 | enum ofperr error; | |
2b07c8b1 BP |
4856 | struct ofpbuf b; |
4857 | size_t i; | |
4858 | ||
982697a4 | 4859 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
2b07c8b1 BP |
4860 | monitors = NULL; |
4861 | n_monitors = allocated_monitors = 0; | |
15aaf599 BP |
4862 | |
4863 | ovs_mutex_lock(&ofproto_mutex); | |
2b07c8b1 BP |
4864 | for (;;) { |
4865 | struct ofputil_flow_monitor_request request; | |
4866 | struct ofmonitor *m; | |
4867 | int retval; | |
4868 | ||
4869 | retval = ofputil_decode_flow_monitor_request(&request, &b); | |
4870 | if (retval == EOF) { | |
4871 | break; | |
4872 | } else if (retval) { | |
4873 | error = retval; | |
4874 | goto error; | |
4875 | } | |
4876 | ||
4877 | if (request.table_id != 0xff | |
4878 | && request.table_id >= ofproto->n_tables) { | |
4879 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
4880 | goto error; | |
4881 | } | |
4882 | ||
4883 | error = ofmonitor_create(&request, ofconn, &m); | |
4884 | if (error) { | |
4885 | goto error; | |
4886 | } | |
4887 | ||
4888 | if (n_monitors >= allocated_monitors) { | |
4889 | monitors = x2nrealloc(monitors, &allocated_monitors, | |
4890 | sizeof *monitors); | |
4891 | } | |
4892 | monitors[n_monitors++] = m; | |
4893 | } | |
4894 | ||
a8e547c1 | 4895 | rule_collection_init(&rules); |
2b07c8b1 BP |
4896 | for (i = 0; i < n_monitors; i++) { |
4897 | ofproto_collect_ofmonitor_initial_rules(monitors[i], &rules); | |
4898 | } | |
4899 | ||
982697a4 | 4900 | ofpmp_init(&replies, oh); |
2b07c8b1 | 4901 | ofmonitor_compose_refresh_updates(&rules, &replies); |
15aaf599 BP |
4902 | ovs_mutex_unlock(&ofproto_mutex); |
4903 | ||
a8e547c1 BP |
4904 | rule_collection_destroy(&rules); |
4905 | ||
2b07c8b1 | 4906 | ofconn_send_replies(ofconn, &replies); |
2b07c8b1 BP |
4907 | free(monitors); |
4908 | ||
4909 | return 0; | |
4910 | ||
4911 | error: | |
4912 | for (i = 0; i < n_monitors; i++) { | |
4913 | ofmonitor_destroy(monitors[i]); | |
4914 | } | |
4915 | free(monitors); | |
4cd1bc9d BP |
4916 | ovs_mutex_unlock(&ofproto_mutex); |
4917 | ||
2b07c8b1 BP |
4918 | return error; |
4919 | } | |
4920 | ||
4921 | static enum ofperr | |
4922 | handle_flow_monitor_cancel(struct ofconn *ofconn, const struct ofp_header *oh) | |
15aaf599 | 4923 | OVS_EXCLUDED(ofproto_mutex) |
2b07c8b1 | 4924 | { |
15aaf599 | 4925 | enum ofperr error; |
2b07c8b1 BP |
4926 | uint32_t id; |
4927 | ||
4928 | id = ofputil_decode_flow_monitor_cancel(oh); | |
15aaf599 BP |
4929 | |
4930 | ovs_mutex_lock(&ofproto_mutex); | |
7b900689 | 4931 | error = flow_monitor_delete(ofconn, id); |
15aaf599 | 4932 | ovs_mutex_unlock(&ofproto_mutex); |
2b07c8b1 | 4933 | |
15aaf599 | 4934 | return error; |
2b07c8b1 BP |
4935 | } |
4936 | ||
9cae45dc JR |
4937 | /* Meters implementation. |
4938 | * | |
4939 | * Meter table entry, indexed by the OpenFlow meter_id. | |
9cae45dc JR |
4940 | * 'created' is used to compute the duration for meter stats. |
4941 | * 'list rules' is needed so that we can delete the dependent rules when the | |
4942 | * meter table entry is deleted. | |
4943 | * 'provider_meter_id' is for the provider's private use. | |
4944 | */ | |
4945 | struct meter { | |
4946 | long long int created; /* Time created. */ | |
4947 | struct list rules; /* List of "struct rule_dpif"s. */ | |
4948 | ofproto_meter_id provider_meter_id; | |
4949 | uint16_t flags; /* Meter flags. */ | |
4950 | uint16_t n_bands; /* Number of meter bands. */ | |
4951 | struct ofputil_meter_band *bands; | |
4952 | }; | |
4953 | ||
4954 | /* | |
4955 | * This is used in instruction validation at flow set-up time, | |
4956 | * as flows may not use non-existing meters. | |
9cae45dc JR |
4957 | * Return value of UINT32_MAX signifies an invalid meter. |
4958 | */ | |
65efd2ab JR |
4959 | static uint32_t |
4960 | get_provider_meter_id(const struct ofproto *ofproto, uint32_t of_meter_id) | |
9cae45dc JR |
4961 | { |
4962 | if (of_meter_id && of_meter_id <= ofproto->meter_features.max_meters) { | |
4963 | const struct meter *meter = ofproto->meters[of_meter_id]; | |
4964 | if (meter) { | |
4965 | return meter->provider_meter_id.uint32; | |
4966 | } | |
4967 | } | |
4968 | return UINT32_MAX; | |
4969 | } | |
4970 | ||
062fea06 BP |
4971 | /* Finds the meter invoked by 'rule''s actions and adds 'rule' to the meter's |
4972 | * list of rules. */ | |
4973 | static void | |
4974 | meter_insert_rule(struct rule *rule) | |
4975 | { | |
4976 | const struct rule_actions *a = rule_get_actions(rule); | |
4977 | uint32_t meter_id = ofpacts_get_meter(a->ofpacts, a->ofpacts_len); | |
4978 | struct meter *meter = rule->ofproto->meters[meter_id]; | |
4979 | ||
4980 | list_insert(&meter->rules, &rule->meter_list_node); | |
4981 | } | |
4982 | ||
9cae45dc JR |
4983 | static void |
4984 | meter_update(struct meter *meter, const struct ofputil_meter_config *config) | |
4985 | { | |
4986 | free(meter->bands); | |
4987 | ||
4988 | meter->flags = config->flags; | |
4989 | meter->n_bands = config->n_bands; | |
4990 | meter->bands = xmemdup(config->bands, | |
4991 | config->n_bands * sizeof *meter->bands); | |
4992 | } | |
4993 | ||
4994 | static struct meter * | |
4995 | meter_create(const struct ofputil_meter_config *config, | |
4996 | ofproto_meter_id provider_meter_id) | |
4997 | { | |
4998 | struct meter *meter; | |
4999 | ||
5000 | meter = xzalloc(sizeof *meter); | |
5001 | meter->provider_meter_id = provider_meter_id; | |
5002 | meter->created = time_msec(); | |
5003 | list_init(&meter->rules); | |
5004 | ||
5005 | meter_update(meter, config); | |
5006 | ||
5007 | return meter; | |
5008 | } | |
5009 | ||
6b3f7f02 JR |
5010 | static void |
5011 | meter_delete(struct ofproto *ofproto, uint32_t first, uint32_t last) | |
15aaf599 | 5012 | OVS_REQUIRES(ofproto_mutex) |
6b3f7f02 JR |
5013 | { |
5014 | uint32_t mid; | |
5015 | for (mid = first; mid <= last; ++mid) { | |
5016 | struct meter *meter = ofproto->meters[mid]; | |
5017 | if (meter) { | |
5018 | ofproto->meters[mid] = NULL; | |
5019 | ofproto->ofproto_class->meter_del(ofproto, | |
5020 | meter->provider_meter_id); | |
5021 | free(meter->bands); | |
5022 | free(meter); | |
5023 | } | |
5024 | } | |
5025 | } | |
5026 | ||
9cae45dc JR |
5027 | static enum ofperr |
5028 | handle_add_meter(struct ofproto *ofproto, struct ofputil_meter_mod *mm) | |
5029 | { | |
5030 | ofproto_meter_id provider_meter_id = { UINT32_MAX }; | |
5031 | struct meter **meterp = &ofproto->meters[mm->meter.meter_id]; | |
5032 | enum ofperr error; | |
5033 | ||
5034 | if (*meterp) { | |
5035 | return OFPERR_OFPMMFC_METER_EXISTS; | |
5036 | } | |
5037 | ||
5038 | error = ofproto->ofproto_class->meter_set(ofproto, &provider_meter_id, | |
5039 | &mm->meter); | |
5040 | if (!error) { | |
5041 | ovs_assert(provider_meter_id.uint32 != UINT32_MAX); | |
5042 | *meterp = meter_create(&mm->meter, provider_meter_id); | |
5043 | } | |
f0f8c6c2 | 5044 | return error; |
9cae45dc JR |
5045 | } |
5046 | ||
5047 | static enum ofperr | |
5048 | handle_modify_meter(struct ofproto *ofproto, struct ofputil_meter_mod *mm) | |
5049 | { | |
5050 | struct meter *meter = ofproto->meters[mm->meter.meter_id]; | |
5051 | enum ofperr error; | |
e555eb7c | 5052 | uint32_t provider_meter_id; |
9cae45dc JR |
5053 | |
5054 | if (!meter) { | |
5055 | return OFPERR_OFPMMFC_UNKNOWN_METER; | |
5056 | } | |
5057 | ||
e555eb7c | 5058 | provider_meter_id = meter->provider_meter_id.uint32; |
9cae45dc JR |
5059 | error = ofproto->ofproto_class->meter_set(ofproto, |
5060 | &meter->provider_meter_id, | |
5061 | &mm->meter); | |
e555eb7c | 5062 | ovs_assert(meter->provider_meter_id.uint32 == provider_meter_id); |
9cae45dc JR |
5063 | if (!error) { |
5064 | meter_update(meter, &mm->meter); | |
5065 | } | |
5066 | return error; | |
5067 | } | |
5068 | ||
5069 | static enum ofperr | |
baae3d02 | 5070 | handle_delete_meter(struct ofconn *ofconn, struct ofputil_meter_mod *mm) |
15aaf599 | 5071 | OVS_EXCLUDED(ofproto_mutex) |
9cae45dc JR |
5072 | { |
5073 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
5074 | uint32_t meter_id = mm->meter.meter_id; | |
a8e547c1 BP |
5075 | struct rule_collection rules; |
5076 | enum ofperr error = 0; | |
9cae45dc | 5077 | uint32_t first, last; |
9cae45dc JR |
5078 | |
5079 | if (meter_id == OFPM13_ALL) { | |
5080 | first = 1; | |
5081 | last = ofproto->meter_features.max_meters; | |
5082 | } else { | |
5083 | if (!meter_id || meter_id > ofproto->meter_features.max_meters) { | |
5084 | return 0; | |
5085 | } | |
5086 | first = last = meter_id; | |
5087 | } | |
5088 | ||
5089 | /* First delete the rules that use this meter. If any of those rules are | |
5090 | * currently being modified, postpone the whole operation until later. */ | |
a8e547c1 | 5091 | rule_collection_init(&rules); |
15aaf599 | 5092 | ovs_mutex_lock(&ofproto_mutex); |
9cae45dc JR |
5093 | for (meter_id = first; meter_id <= last; ++meter_id) { |
5094 | struct meter *meter = ofproto->meters[meter_id]; | |
5095 | if (meter && !list_is_empty(&meter->rules)) { | |
5096 | struct rule *rule; | |
5097 | ||
5098 | LIST_FOR_EACH (rule, meter_list_node, &meter->rules) { | |
a8e547c1 | 5099 | rule_collection_add(&rules, rule); |
9cae45dc JR |
5100 | } |
5101 | } | |
5102 | } | |
a8e547c1 | 5103 | if (rules.n > 0) { |
9ca4a86f | 5104 | delete_flows__(&rules, OFPRR_METER_DELETE, NULL); |
9cae45dc JR |
5105 | } |
5106 | ||
5107 | /* Delete the meters. */ | |
6b3f7f02 | 5108 | meter_delete(ofproto, first, last); |
9cae45dc | 5109 | |
15aaf599 | 5110 | ovs_mutex_unlock(&ofproto_mutex); |
a8e547c1 BP |
5111 | rule_collection_destroy(&rules); |
5112 | ||
5113 | return error; | |
9cae45dc JR |
5114 | } |
5115 | ||
5116 | static enum ofperr | |
5117 | handle_meter_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
5118 | { | |
5119 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
5120 | struct ofputil_meter_mod mm; | |
5121 | uint64_t bands_stub[256 / 8]; | |
5122 | struct ofpbuf bands; | |
5123 | uint32_t meter_id; | |
5124 | enum ofperr error; | |
5125 | ||
5126 | error = reject_slave_controller(ofconn); | |
5127 | if (error) { | |
5128 | return error; | |
5129 | } | |
5130 | ||
5131 | ofpbuf_use_stub(&bands, bands_stub, sizeof bands_stub); | |
5132 | ||
5133 | error = ofputil_decode_meter_mod(oh, &mm, &bands); | |
5134 | if (error) { | |
5135 | goto exit_free_bands; | |
5136 | } | |
5137 | ||
5138 | meter_id = mm.meter.meter_id; | |
5139 | ||
5140 | if (mm.command != OFPMC13_DELETE) { | |
5141 | /* Fails also when meters are not implemented by the provider. */ | |
b31e8700 | 5142 | if (meter_id == 0 || meter_id > OFPM13_MAX) { |
9cae45dc JR |
5143 | error = OFPERR_OFPMMFC_INVALID_METER; |
5144 | goto exit_free_bands; | |
b31e8700 JR |
5145 | } else if (meter_id > ofproto->meter_features.max_meters) { |
5146 | error = OFPERR_OFPMMFC_OUT_OF_METERS; | |
5147 | goto exit_free_bands; | |
9cae45dc JR |
5148 | } |
5149 | if (mm.meter.n_bands > ofproto->meter_features.max_bands) { | |
5150 | error = OFPERR_OFPMMFC_OUT_OF_BANDS; | |
5151 | goto exit_free_bands; | |
5152 | } | |
5153 | } | |
5154 | ||
5155 | switch (mm.command) { | |
5156 | case OFPMC13_ADD: | |
5157 | error = handle_add_meter(ofproto, &mm); | |
5158 | break; | |
5159 | ||
5160 | case OFPMC13_MODIFY: | |
5161 | error = handle_modify_meter(ofproto, &mm); | |
5162 | break; | |
5163 | ||
5164 | case OFPMC13_DELETE: | |
baae3d02 | 5165 | error = handle_delete_meter(ofconn, &mm); |
9cae45dc JR |
5166 | break; |
5167 | ||
5168 | default: | |
5169 | error = OFPERR_OFPMMFC_BAD_COMMAND; | |
5170 | break; | |
5171 | } | |
5172 | ||
5173 | exit_free_bands: | |
5174 | ofpbuf_uninit(&bands); | |
5175 | return error; | |
5176 | } | |
5177 | ||
5178 | static enum ofperr | |
5179 | handle_meter_features_request(struct ofconn *ofconn, | |
5180 | const struct ofp_header *request) | |
5181 | { | |
5182 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
5183 | struct ofputil_meter_features features; | |
5184 | struct ofpbuf *b; | |
5185 | ||
5186 | if (ofproto->ofproto_class->meter_get_features) { | |
5187 | ofproto->ofproto_class->meter_get_features(ofproto, &features); | |
5188 | } else { | |
5189 | memset(&features, 0, sizeof features); | |
5190 | } | |
5191 | b = ofputil_encode_meter_features_reply(&features, request); | |
5192 | ||
5193 | ofconn_send_reply(ofconn, b); | |
5194 | return 0; | |
5195 | } | |
5196 | ||
5197 | static enum ofperr | |
5198 | handle_meter_request(struct ofconn *ofconn, const struct ofp_header *request, | |
5199 | enum ofptype type) | |
5200 | { | |
5201 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
5202 | struct list replies; | |
5203 | uint64_t bands_stub[256 / 8]; | |
5204 | struct ofpbuf bands; | |
5205 | uint32_t meter_id, first, last; | |
5206 | ||
5207 | ofputil_decode_meter_request(request, &meter_id); | |
5208 | ||
5209 | if (meter_id == OFPM13_ALL) { | |
5210 | first = 1; | |
5211 | last = ofproto->meter_features.max_meters; | |
5212 | } else { | |
5213 | if (!meter_id || meter_id > ofproto->meter_features.max_meters || | |
5214 | !ofproto->meters[meter_id]) { | |
5215 | return OFPERR_OFPMMFC_UNKNOWN_METER; | |
5216 | } | |
5217 | first = last = meter_id; | |
5218 | } | |
5219 | ||
5220 | ofpbuf_use_stub(&bands, bands_stub, sizeof bands_stub); | |
5221 | ofpmp_init(&replies, request); | |
5222 | ||
5223 | for (meter_id = first; meter_id <= last; ++meter_id) { | |
5224 | struct meter *meter = ofproto->meters[meter_id]; | |
5225 | if (!meter) { | |
5226 | continue; /* Skip non-existing meters. */ | |
5227 | } | |
261bd854 | 5228 | if (type == OFPTYPE_METER_STATS_REQUEST) { |
9cae45dc JR |
5229 | struct ofputil_meter_stats stats; |
5230 | ||
5231 | stats.meter_id = meter_id; | |
5232 | ||
5233 | /* Provider sets the packet and byte counts, we do the rest. */ | |
5234 | stats.flow_count = list_size(&meter->rules); | |
5235 | calc_duration(meter->created, time_msec(), | |
5236 | &stats.duration_sec, &stats.duration_nsec); | |
5237 | stats.n_bands = meter->n_bands; | |
5238 | ofpbuf_clear(&bands); | |
5239 | stats.bands | |
5240 | = ofpbuf_put_uninit(&bands, | |
5241 | meter->n_bands * sizeof *stats.bands); | |
5242 | ||
5243 | if (!ofproto->ofproto_class->meter_get(ofproto, | |
5244 | meter->provider_meter_id, | |
5245 | &stats)) { | |
5246 | ofputil_append_meter_stats(&replies, &stats); | |
5247 | } | |
5248 | } else { /* type == OFPTYPE_METER_CONFIG_REQUEST */ | |
5249 | struct ofputil_meter_config config; | |
5250 | ||
5251 | config.meter_id = meter_id; | |
5252 | config.flags = meter->flags; | |
5253 | config.n_bands = meter->n_bands; | |
5254 | config.bands = meter->bands; | |
5255 | ofputil_append_meter_config(&replies, &config); | |
5256 | } | |
5257 | } | |
5258 | ||
5259 | ofconn_send_replies(ofconn, &replies); | |
5260 | ofpbuf_uninit(&bands); | |
5261 | return 0; | |
5262 | } | |
5263 | ||
3fc3b679 AZ |
5264 | static bool |
5265 | ofproto_group_lookup__(const struct ofproto *ofproto, uint32_t group_id, | |
5266 | struct ofgroup **group) | |
5267 | OVS_REQ_RDLOCK(ofproto->groups_rwlock) | |
7395c052 | 5268 | { |
7395c052 NZ |
5269 | HMAP_FOR_EACH_IN_BUCKET (*group, hmap_node, |
5270 | hash_int(group_id, 0), &ofproto->groups) { | |
5271 | if ((*group)->group_id == group_id) { | |
7395c052 NZ |
5272 | return true; |
5273 | } | |
5274 | } | |
3fc3b679 | 5275 | |
7395c052 NZ |
5276 | return false; |
5277 | } | |
5278 | ||
3fc3b679 AZ |
5279 | /* If the group exists, this function increments the groups's reference count. |
5280 | * | |
5281 | * Make sure to call ofproto_group_unref() after no longer needing to maintain | |
5282 | * a reference to the group. */ | |
5283 | bool | |
5284 | ofproto_group_lookup(const struct ofproto *ofproto, uint32_t group_id, | |
5285 | struct ofgroup **group) | |
7395c052 | 5286 | { |
3fc3b679 AZ |
5287 | bool found; |
5288 | ||
5289 | ovs_rwlock_rdlock(&ofproto->groups_rwlock); | |
5290 | found = ofproto_group_lookup__(ofproto, group_id, group); | |
5291 | if (found) { | |
5292 | ofproto_group_ref(*group); | |
7395c052 | 5293 | } |
3fc3b679 AZ |
5294 | ovs_rwlock_unlock(&ofproto->groups_rwlock); |
5295 | return found; | |
7395c052 NZ |
5296 | } |
5297 | ||
5298 | static bool | |
7e9f8266 | 5299 | ofproto_group_exists__(const struct ofproto *ofproto, uint32_t group_id) |
7395c052 NZ |
5300 | OVS_REQ_RDLOCK(ofproto->groups_rwlock) |
5301 | { | |
5302 | struct ofgroup *grp; | |
5303 | ||
5304 | HMAP_FOR_EACH_IN_BUCKET (grp, hmap_node, | |
5305 | hash_int(group_id, 0), &ofproto->groups) { | |
5306 | if (grp->group_id == group_id) { | |
5307 | return true; | |
5308 | } | |
5309 | } | |
5310 | return false; | |
5311 | } | |
5312 | ||
7e9f8266 BP |
5313 | static bool |
5314 | ofproto_group_exists(const struct ofproto *ofproto, uint32_t group_id) | |
5315 | OVS_EXCLUDED(ofproto->groups_rwlock) | |
5316 | { | |
5317 | bool exists; | |
5318 | ||
5319 | ovs_rwlock_rdlock(&ofproto->groups_rwlock); | |
5320 | exists = ofproto_group_exists__(ofproto, group_id); | |
5321 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
5322 | ||
5323 | return exists; | |
5324 | } | |
5325 | ||
732feb93 SH |
5326 | static uint32_t |
5327 | group_get_ref_count(struct ofgroup *group) | |
5328 | OVS_EXCLUDED(ofproto_mutex) | |
5329 | { | |
eaf004bd | 5330 | struct ofproto *ofproto = CONST_CAST(struct ofproto *, group->ofproto); |
732feb93 SH |
5331 | struct rule_criteria criteria; |
5332 | struct rule_collection rules; | |
5333 | struct match match; | |
5334 | enum ofperr error; | |
5335 | uint32_t count; | |
5336 | ||
5337 | match_init_catchall(&match); | |
5338 | rule_criteria_init(&criteria, 0xff, &match, 0, htonll(0), htonll(0), | |
5339 | OFPP_ANY, group->group_id); | |
5340 | ovs_mutex_lock(&ofproto_mutex); | |
5341 | error = collect_rules_loose(ofproto, &criteria, &rules); | |
5342 | ovs_mutex_unlock(&ofproto_mutex); | |
5343 | rule_criteria_destroy(&criteria); | |
5344 | ||
5345 | count = !error && rules.n < UINT32_MAX ? rules.n : UINT32_MAX; | |
5346 | ||
5347 | rule_collection_destroy(&rules); | |
5348 | return count; | |
5349 | } | |
5350 | ||
7395c052 NZ |
5351 | static void |
5352 | append_group_stats(struct ofgroup *group, struct list *replies) | |
7395c052 NZ |
5353 | { |
5354 | struct ofputil_group_stats ogs; | |
eaf004bd | 5355 | const struct ofproto *ofproto = group->ofproto; |
7395c052 NZ |
5356 | long long int now = time_msec(); |
5357 | int error; | |
5358 | ||
646b2a9c SH |
5359 | ogs.bucket_stats = xmalloc(group->n_buckets * sizeof *ogs.bucket_stats); |
5360 | ||
732feb93 SH |
5361 | /* Provider sets the packet and byte counts, we do the rest. */ |
5362 | ogs.ref_count = group_get_ref_count(group); | |
5363 | ogs.n_buckets = group->n_buckets; | |
5364 | ||
7395c052 NZ |
5365 | error = (ofproto->ofproto_class->group_get_stats |
5366 | ? ofproto->ofproto_class->group_get_stats(group, &ogs) | |
5367 | : EOPNOTSUPP); | |
5368 | if (error) { | |
7395c052 NZ |
5369 | ogs.packet_count = UINT64_MAX; |
5370 | ogs.byte_count = UINT64_MAX; | |
7395c052 NZ |
5371 | memset(ogs.bucket_stats, 0xff, |
5372 | ogs.n_buckets * sizeof *ogs.bucket_stats); | |
5373 | } | |
5374 | ||
5375 | ogs.group_id = group->group_id; | |
5376 | calc_duration(group->created, now, &ogs.duration_sec, &ogs.duration_nsec); | |
5377 | ||
5378 | ofputil_append_group_stats(replies, &ogs); | |
646b2a9c SH |
5379 | |
5380 | free(ogs.bucket_stats); | |
7395c052 NZ |
5381 | } |
5382 | ||
19187a71 BP |
5383 | static void |
5384 | handle_group_request(struct ofconn *ofconn, | |
5385 | const struct ofp_header *request, uint32_t group_id, | |
5386 | void (*cb)(struct ofgroup *, struct list *replies)) | |
7395c052 NZ |
5387 | { |
5388 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
7395c052 | 5389 | struct ofgroup *group; |
19187a71 | 5390 | struct list replies; |
7395c052 NZ |
5391 | |
5392 | ofpmp_init(&replies, request); | |
7395c052 NZ |
5393 | if (group_id == OFPG_ALL) { |
5394 | ovs_rwlock_rdlock(&ofproto->groups_rwlock); | |
5395 | HMAP_FOR_EACH (group, hmap_node, &ofproto->groups) { | |
19187a71 | 5396 | cb(group, &replies); |
7395c052 NZ |
5397 | } |
5398 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
5399 | } else { | |
5400 | if (ofproto_group_lookup(ofproto, group_id, &group)) { | |
19187a71 | 5401 | cb(group, &replies); |
809c7548 | 5402 | ofproto_group_unref(group); |
7395c052 NZ |
5403 | } |
5404 | } | |
7395c052 | 5405 | ofconn_send_replies(ofconn, &replies); |
7395c052 NZ |
5406 | } |
5407 | ||
5408 | static enum ofperr | |
19187a71 BP |
5409 | handle_group_stats_request(struct ofconn *ofconn, |
5410 | const struct ofp_header *request) | |
7395c052 | 5411 | { |
19187a71 BP |
5412 | uint32_t group_id; |
5413 | enum ofperr error; | |
7395c052 | 5414 | |
19187a71 BP |
5415 | error = ofputil_decode_group_stats_request(request, &group_id); |
5416 | if (error) { | |
5417 | return error; | |
7395c052 | 5418 | } |
7395c052 | 5419 | |
19187a71 BP |
5420 | handle_group_request(ofconn, request, group_id, append_group_stats); |
5421 | return 0; | |
5422 | } | |
5423 | ||
5424 | static void | |
5425 | append_group_desc(struct ofgroup *group, struct list *replies) | |
5426 | { | |
5427 | struct ofputil_group_desc gds; | |
7395c052 | 5428 | |
19187a71 BP |
5429 | gds.group_id = group->group_id; |
5430 | gds.type = group->type; | |
5431 | ofputil_append_group_desc_reply(&gds, &group->buckets, replies); | |
5432 | } | |
5433 | ||
5434 | static enum ofperr | |
5435 | handle_group_desc_stats_request(struct ofconn *ofconn, | |
5436 | const struct ofp_header *request) | |
5437 | { | |
5438 | handle_group_request(ofconn, request, | |
5439 | ofputil_decode_group_desc_request(request), | |
5440 | append_group_desc); | |
7395c052 NZ |
5441 | return 0; |
5442 | } | |
5443 | ||
5444 | static enum ofperr | |
5445 | handle_group_features_stats_request(struct ofconn *ofconn, | |
5446 | const struct ofp_header *request) | |
5447 | { | |
5448 | struct ofproto *p = ofconn_get_ofproto(ofconn); | |
5449 | struct ofpbuf *msg; | |
5450 | ||
5451 | msg = ofputil_encode_group_features_reply(&p->ogf, request); | |
5452 | if (msg) { | |
5453 | ofconn_send_reply(ofconn, msg); | |
5454 | } | |
5455 | ||
5456 | return 0; | |
5457 | } | |
5458 | ||
e8f9a7bb VG |
5459 | static enum ofperr |
5460 | handle_queue_get_config_request(struct ofconn *ofconn, | |
5461 | const struct ofp_header *oh) | |
5462 | { | |
5463 | struct ofproto *p = ofconn_get_ofproto(ofconn); | |
5464 | struct netdev_queue_dump queue_dump; | |
5465 | struct ofport *ofport; | |
5466 | unsigned int queue_id; | |
5467 | struct ofpbuf *reply; | |
5468 | struct smap details; | |
5469 | ofp_port_t request; | |
5470 | enum ofperr error; | |
5471 | ||
5472 | error = ofputil_decode_queue_get_config_request(oh, &request); | |
5473 | if (error) { | |
5474 | return error; | |
5475 | } | |
5476 | ||
5477 | ofport = ofproto_get_port(p, request); | |
5478 | if (!ofport) { | |
5479 | return OFPERR_OFPQOFC_BAD_PORT; | |
5480 | } | |
5481 | ||
5482 | reply = ofputil_encode_queue_get_config_reply(oh); | |
5483 | ||
5484 | smap_init(&details); | |
5485 | NETDEV_QUEUE_FOR_EACH (&queue_id, &details, &queue_dump, ofport->netdev) { | |
5486 | struct ofputil_queue_config queue; | |
5487 | ||
5488 | /* None of the existing queues have compatible properties, so we | |
5489 | * hard-code omitting min_rate and max_rate. */ | |
5490 | queue.queue_id = queue_id; | |
5491 | queue.min_rate = UINT16_MAX; | |
5492 | queue.max_rate = UINT16_MAX; | |
5493 | ofputil_append_queue_get_config_reply(reply, &queue); | |
5494 | } | |
5495 | smap_destroy(&details); | |
5496 | ||
5497 | ofconn_send_reply(ofconn, reply); | |
5498 | ||
5499 | return 0; | |
5500 | } | |
5501 | ||
809c7548 RW |
5502 | static enum ofperr |
5503 | init_group(struct ofproto *ofproto, struct ofputil_group_mod *gm, | |
5504 | struct ofgroup **ofgroup) | |
5505 | { | |
5506 | enum ofperr error; | |
eaf004bd | 5507 | const long long int now = time_msec(); |
809c7548 RW |
5508 | |
5509 | if (gm->group_id > OFPG_MAX) { | |
5510 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
5511 | } | |
5512 | if (gm->type > OFPGT11_FF) { | |
5513 | return OFPERR_OFPGMFC_BAD_TYPE; | |
5514 | } | |
5515 | ||
5516 | *ofgroup = ofproto->ofproto_class->group_alloc(); | |
5517 | if (!*ofgroup) { | |
5518 | VLOG_WARN_RL(&rl, "%s: failed to allocate group", ofproto->name); | |
5519 | return OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
5520 | } | |
5521 | ||
eaf004bd AZ |
5522 | (*ofgroup)->ofproto = ofproto; |
5523 | *CONST_CAST(uint32_t *, &((*ofgroup)->group_id)) = gm->group_id; | |
5524 | *CONST_CAST(enum ofp11_group_type *, &(*ofgroup)->type) = gm->type; | |
5525 | *CONST_CAST(long long int *, &((*ofgroup)->created)) = now; | |
5526 | *CONST_CAST(long long int *, &((*ofgroup)->modified)) = now; | |
809c7548 RW |
5527 | ovs_refcount_init(&(*ofgroup)->ref_count); |
5528 | ||
5529 | list_move(&(*ofgroup)->buckets, &gm->buckets); | |
eaf004bd AZ |
5530 | *CONST_CAST(uint32_t *, &(*ofgroup)->n_buckets) = |
5531 | list_size(&(*ofgroup)->buckets); | |
809c7548 RW |
5532 | |
5533 | /* Construct called BEFORE any locks are held. */ | |
5534 | error = ofproto->ofproto_class->group_construct(*ofgroup); | |
5535 | if (error) { | |
5536 | ofputil_bucket_list_destroy(&(*ofgroup)->buckets); | |
5537 | ofproto->ofproto_class->group_dealloc(*ofgroup); | |
5538 | } | |
5539 | return error; | |
5540 | } | |
5541 | ||
6c5b90ce BP |
5542 | /* Implements the OFPGC11_ADD operation specified by 'gm', adding a group to |
5543 | * 'ofproto''s group table. Returns 0 on success or an OpenFlow error code on | |
5544 | * failure. */ | |
7395c052 NZ |
5545 | static enum ofperr |
5546 | add_group(struct ofproto *ofproto, struct ofputil_group_mod *gm) | |
5547 | { | |
5548 | struct ofgroup *ofgroup; | |
5549 | enum ofperr error; | |
5550 | ||
7395c052 | 5551 | /* Allocate new group and initialize it. */ |
809c7548 | 5552 | error = init_group(ofproto, gm, &ofgroup); |
7395c052 | 5553 | if (error) { |
809c7548 | 5554 | return error; |
7395c052 NZ |
5555 | } |
5556 | ||
5557 | /* We wrlock as late as possible to minimize the time we jam any other | |
5558 | * threads: No visible state changes before acquiring the lock. */ | |
5559 | ovs_rwlock_wrlock(&ofproto->groups_rwlock); | |
5560 | ||
5561 | if (ofproto->n_groups[gm->type] >= ofproto->ogf.max_groups[gm->type]) { | |
5562 | error = OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
5563 | goto unlock_out; | |
5564 | } | |
5565 | ||
7e9f8266 | 5566 | if (ofproto_group_exists__(ofproto, gm->group_id)) { |
7395c052 NZ |
5567 | error = OFPERR_OFPGMFC_GROUP_EXISTS; |
5568 | goto unlock_out; | |
5569 | } | |
5570 | ||
5571 | if (!error) { | |
5572 | /* Insert new group. */ | |
5573 | hmap_insert(&ofproto->groups, &ofgroup->hmap_node, | |
5574 | hash_int(ofgroup->group_id, 0)); | |
5575 | ofproto->n_groups[ofgroup->type]++; | |
5576 | ||
5577 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
5578 | return error; | |
5579 | } | |
5580 | ||
5581 | unlock_out: | |
5582 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
5583 | ofproto->ofproto_class->group_destruct(ofgroup); | |
7395c052 NZ |
5584 | ofputil_bucket_list_destroy(&ofgroup->buckets); |
5585 | ofproto->ofproto_class->group_dealloc(ofgroup); | |
5586 | ||
5587 | return error; | |
5588 | } | |
5589 | ||
6c5b90ce BP |
5590 | /* Implements OFPGC11_MODIFY. Returns 0 on success or an OpenFlow error code |
5591 | * on failure. | |
7395c052 | 5592 | * |
809c7548 RW |
5593 | * Note that the group is re-created and then replaces the old group in |
5594 | * ofproto's ofgroup hash map. Thus, the group is never altered while users of | |
6c5b90ce | 5595 | * the xlate module hold a pointer to the group. */ |
7395c052 NZ |
5596 | static enum ofperr |
5597 | modify_group(struct ofproto *ofproto, struct ofputil_group_mod *gm) | |
5598 | { | |
809c7548 | 5599 | struct ofgroup *ofgroup, *new_ofgroup, *retiring; |
7395c052 NZ |
5600 | enum ofperr error; |
5601 | ||
809c7548 RW |
5602 | error = init_group(ofproto, gm, &new_ofgroup); |
5603 | if (error) { | |
5604 | return error; | |
7395c052 NZ |
5605 | } |
5606 | ||
809c7548 | 5607 | retiring = new_ofgroup; |
7395c052 | 5608 | |
3fc3b679 AZ |
5609 | ovs_rwlock_wrlock(&ofproto->groups_rwlock); |
5610 | if (!ofproto_group_lookup__(ofproto, gm->group_id, &ofgroup)) { | |
7395c052 | 5611 | error = OFPERR_OFPGMFC_UNKNOWN_GROUP; |
809c7548 | 5612 | goto out; |
7395c052 | 5613 | } |
809c7548 RW |
5614 | |
5615 | /* Ofproto's group write lock is held now. */ | |
7395c052 NZ |
5616 | if (ofgroup->type != gm->type |
5617 | && ofproto->n_groups[gm->type] >= ofproto->ogf.max_groups[gm->type]) { | |
5618 | error = OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
809c7548 | 5619 | goto out; |
7395c052 NZ |
5620 | } |
5621 | ||
809c7548 | 5622 | /* The group creation time does not change during modification. */ |
eaf004bd AZ |
5623 | *CONST_CAST(long long int *, &(new_ofgroup->created)) = ofgroup->created; |
5624 | *CONST_CAST(long long int *, &(new_ofgroup->modified)) = time_msec(); | |
7395c052 | 5625 | |
809c7548 RW |
5626 | error = ofproto->ofproto_class->group_modify(new_ofgroup); |
5627 | if (error) { | |
5628 | goto out; | |
5629 | } | |
7395c052 | 5630 | |
809c7548 RW |
5631 | retiring = ofgroup; |
5632 | /* Replace ofgroup in ofproto's groups hash map with new_ofgroup. */ | |
5633 | hmap_remove(&ofproto->groups, &ofgroup->hmap_node); | |
5634 | hmap_insert(&ofproto->groups, &new_ofgroup->hmap_node, | |
5635 | hash_int(new_ofgroup->group_id, 0)); | |
5636 | if (ofgroup->type != new_ofgroup->type) { | |
5637 | ofproto->n_groups[ofgroup->type]--; | |
5638 | ofproto->n_groups[new_ofgroup->type]++; | |
7395c052 NZ |
5639 | } |
5640 | ||
809c7548 RW |
5641 | out: |
5642 | ofproto_group_unref(retiring); | |
7395c052 | 5643 | ovs_rwlock_unlock(&ofproto->groups_rwlock); |
7395c052 NZ |
5644 | return error; |
5645 | } | |
5646 | ||
5647 | static void | |
5648 | delete_group__(struct ofproto *ofproto, struct ofgroup *ofgroup) | |
5649 | OVS_RELEASES(ofproto->groups_rwlock) | |
5650 | { | |
276f6518 SH |
5651 | struct match match; |
5652 | struct ofputil_flow_mod fm; | |
5653 | ||
5654 | /* Delete all flow entries containing this group in a group action */ | |
5655 | match_init_catchall(&match); | |
5656 | flow_mod_init(&fm, &match, 0, NULL, 0, OFPFC_DELETE); | |
cc40d06b | 5657 | fm.delete_reason = OFPRR_GROUP_DELETE; |
276f6518 | 5658 | fm.out_group = ofgroup->group_id; |
baae3d02 | 5659 | handle_flow_mod__(ofproto, &fm, NULL); |
276f6518 | 5660 | |
7395c052 NZ |
5661 | hmap_remove(&ofproto->groups, &ofgroup->hmap_node); |
5662 | /* No-one can find this group any more. */ | |
5663 | ofproto->n_groups[ofgroup->type]--; | |
5664 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
809c7548 | 5665 | ofproto_group_unref(ofgroup); |
7395c052 NZ |
5666 | } |
5667 | ||
6c5b90ce | 5668 | /* Implements OFPGC11_DELETE. */ |
7395c052 NZ |
5669 | static void |
5670 | delete_group(struct ofproto *ofproto, uint32_t group_id) | |
5671 | { | |
5672 | struct ofgroup *ofgroup; | |
5673 | ||
5674 | ovs_rwlock_wrlock(&ofproto->groups_rwlock); | |
5675 | if (group_id == OFPG_ALL) { | |
5676 | for (;;) { | |
5677 | struct hmap_node *node = hmap_first(&ofproto->groups); | |
5678 | if (!node) { | |
5679 | break; | |
5680 | } | |
5681 | ofgroup = CONTAINER_OF(node, struct ofgroup, hmap_node); | |
5682 | delete_group__(ofproto, ofgroup); | |
5683 | /* Lock for each node separately, so that we will not jam the | |
5684 | * other threads for too long time. */ | |
5685 | ovs_rwlock_wrlock(&ofproto->groups_rwlock); | |
5686 | } | |
5687 | } else { | |
5688 | HMAP_FOR_EACH_IN_BUCKET (ofgroup, hmap_node, | |
5689 | hash_int(group_id, 0), &ofproto->groups) { | |
5690 | if (ofgroup->group_id == group_id) { | |
5691 | delete_group__(ofproto, ofgroup); | |
5692 | return; | |
5693 | } | |
5694 | } | |
5695 | } | |
5696 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
5697 | } | |
5698 | ||
5699 | static enum ofperr | |
5700 | handle_group_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
5701 | { | |
5702 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
5703 | struct ofputil_group_mod gm; | |
5704 | enum ofperr error; | |
5705 | ||
5706 | error = reject_slave_controller(ofconn); | |
5707 | if (error) { | |
5708 | return error; | |
5709 | } | |
5710 | ||
5711 | error = ofputil_decode_group_mod(oh, &gm); | |
5712 | if (error) { | |
5713 | return error; | |
5714 | } | |
5715 | ||
5716 | switch (gm.command) { | |
5717 | case OFPGC11_ADD: | |
5718 | return add_group(ofproto, &gm); | |
5719 | ||
5720 | case OFPGC11_MODIFY: | |
5721 | return modify_group(ofproto, &gm); | |
5722 | ||
5723 | case OFPGC11_DELETE: | |
5724 | delete_group(ofproto, gm.group_id); | |
5725 | return 0; | |
5726 | ||
5727 | default: | |
5728 | if (gm.command > OFPGC11_DELETE) { | |
5729 | VLOG_WARN_RL(&rl, "%s: Invalid group_mod command type %d", | |
5730 | ofproto->name, gm.command); | |
5731 | } | |
5732 | return OFPERR_OFPGMFC_BAD_COMMAND; | |
5733 | } | |
5734 | } | |
5735 | ||
6b83a3c5 SH |
5736 | enum ofproto_table_config |
5737 | ofproto_table_get_config(const struct ofproto *ofproto, uint8_t table_id) | |
6d328fa2 SH |
5738 | { |
5739 | unsigned int value; | |
5740 | atomic_read(&ofproto->tables[table_id].config, &value); | |
6b83a3c5 | 5741 | return (enum ofproto_table_config)value; |
6d328fa2 SH |
5742 | } |
5743 | ||
67761761 SH |
5744 | static enum ofperr |
5745 | table_mod(struct ofproto *ofproto, const struct ofputil_table_mod *tm) | |
5746 | { | |
6d328fa2 SH |
5747 | /* Only accept currently supported configurations */ |
5748 | if (tm->config & ~OFPTC11_TABLE_MISS_MASK) { | |
5749 | return OFPERR_OFPTMFC_BAD_CONFIG; | |
5750 | } | |
67761761 SH |
5751 | |
5752 | if (tm->table_id == OFPTT_ALL) { | |
5753 | int i; | |
5754 | for (i = 0; i < ofproto->n_tables; i++) { | |
5755 | atomic_store(&ofproto->tables[i].config, | |
5756 | (unsigned int)tm->config); | |
5757 | } | |
5758 | } else if (!check_table_id(ofproto, tm->table_id)) { | |
5759 | return OFPERR_OFPTMFC_BAD_TABLE; | |
5760 | } else { | |
5761 | atomic_store(&ofproto->tables[tm->table_id].config, | |
5762 | (unsigned int)tm->config); | |
5763 | } | |
5764 | ||
5765 | return 0; | |
5766 | } | |
5767 | ||
918f2b82 AZ |
5768 | static enum ofperr |
5769 | handle_table_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
5770 | { | |
67761761 | 5771 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
918f2b82 AZ |
5772 | struct ofputil_table_mod tm; |
5773 | enum ofperr error; | |
5774 | ||
5775 | error = reject_slave_controller(ofconn); | |
5776 | if (error) { | |
5777 | return error; | |
5778 | } | |
5779 | ||
5780 | error = ofputil_decode_table_mod(oh, &tm); | |
5781 | if (error) { | |
5782 | return error; | |
5783 | } | |
5784 | ||
67761761 | 5785 | return table_mod(ofproto, &tm); |
918f2b82 AZ |
5786 | } |
5787 | ||
777af88d AC |
5788 | static enum ofperr |
5789 | handle_bundle_control(struct ofconn *ofconn, const struct ofp_header *oh) | |
5790 | { | |
5791 | enum ofperr error; | |
5792 | struct ofputil_bundle_ctrl_msg bctrl; | |
5793 | struct ofpbuf *buf; | |
5794 | struct ofputil_bundle_ctrl_msg reply; | |
5795 | ||
5796 | error = ofputil_decode_bundle_ctrl(oh, &bctrl); | |
5797 | if (error) { | |
5798 | return error; | |
5799 | } | |
5800 | reply.flags = 0; | |
5801 | reply.bundle_id = bctrl.bundle_id; | |
5802 | ||
5803 | switch (bctrl.type) { | |
5804 | case OFPBCT_OPEN_REQUEST: | |
5805 | error = ofp_bundle_open(ofconn, bctrl.bundle_id, bctrl.flags); | |
5806 | reply.type = OFPBCT_OPEN_REPLY; | |
5807 | break; | |
5808 | case OFPBCT_CLOSE_REQUEST: | |
5809 | error = ofp_bundle_close(ofconn, bctrl.bundle_id, bctrl.flags); | |
5810 | reply.type = OFPBCT_CLOSE_REPLY;; | |
5811 | break; | |
5812 | case OFPBCT_COMMIT_REQUEST: | |
5813 | error = ofp_bundle_commit(ofconn, bctrl.bundle_id, bctrl.flags); | |
5814 | reply.type = OFPBCT_COMMIT_REPLY; | |
5815 | break; | |
5816 | case OFPBCT_DISCARD_REQUEST: | |
5817 | error = ofp_bundle_discard(ofconn, bctrl.bundle_id); | |
5818 | reply.type = OFPBCT_DISCARD_REPLY; | |
5819 | break; | |
5820 | ||
5821 | case OFPBCT_OPEN_REPLY: | |
5822 | case OFPBCT_CLOSE_REPLY: | |
5823 | case OFPBCT_COMMIT_REPLY: | |
5824 | case OFPBCT_DISCARD_REPLY: | |
5825 | return OFPERR_OFPBFC_BAD_TYPE; | |
5826 | break; | |
5827 | } | |
5828 | ||
5829 | if (!error) { | |
5830 | buf = ofputil_encode_bundle_ctrl_reply(oh, &reply); | |
5831 | ofconn_send_reply(ofconn, buf); | |
5832 | } | |
5833 | return error; | |
5834 | } | |
5835 | ||
5836 | ||
5837 | static enum ofperr | |
5838 | handle_bundle_add(struct ofconn *ofconn, const struct ofp_header *oh) | |
5839 | { | |
5840 | enum ofperr error; | |
5841 | struct ofputil_bundle_add_msg badd; | |
5842 | ||
5843 | error = ofputil_decode_bundle_add(oh, &badd); | |
5844 | if (error) { | |
5845 | return error; | |
5846 | } | |
5847 | ||
5848 | return ofp_bundle_add_message(ofconn, &badd); | |
5849 | } | |
5850 | ||
90bf1e07 | 5851 | static enum ofperr |
d1e2cf21 | 5852 | handle_openflow__(struct ofconn *ofconn, const struct ofpbuf *msg) |
15aaf599 | 5853 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 5854 | { |
1f317cb5 | 5855 | const struct ofp_header *oh = ofpbuf_data(msg); |
982697a4 | 5856 | enum ofptype type; |
90bf1e07 | 5857 | enum ofperr error; |
064af421 | 5858 | |
982697a4 | 5859 | error = ofptype_decode(&type, oh); |
d1e2cf21 BP |
5860 | if (error) { |
5861 | return error; | |
5862 | } | |
ff3c2c63 YT |
5863 | if (oh->version >= OFP13_VERSION && ofpmsg_is_stat_request(oh) |
5864 | && ofpmp_more(oh)) { | |
5865 | /* We have no buffer implementation for multipart requests. | |
5866 | * Report overflow for requests which consists of multiple | |
5867 | * messages. */ | |
5868 | return OFPERR_OFPBRC_MULTIPART_BUFFER_OVERFLOW; | |
5869 | } | |
064af421 | 5870 | |
982697a4 | 5871 | switch (type) { |
d1e2cf21 | 5872 | /* OpenFlow requests. */ |
982697a4 | 5873 | case OFPTYPE_ECHO_REQUEST: |
d1e2cf21 | 5874 | return handle_echo_request(ofconn, oh); |
064af421 | 5875 | |
982697a4 | 5876 | case OFPTYPE_FEATURES_REQUEST: |
d1e2cf21 | 5877 | return handle_features_request(ofconn, oh); |
064af421 | 5878 | |
982697a4 | 5879 | case OFPTYPE_GET_CONFIG_REQUEST: |
d1e2cf21 | 5880 | return handle_get_config_request(ofconn, oh); |
064af421 | 5881 | |
982697a4 BP |
5882 | case OFPTYPE_SET_CONFIG: |
5883 | return handle_set_config(ofconn, oh); | |
064af421 | 5884 | |
982697a4 BP |
5885 | case OFPTYPE_PACKET_OUT: |
5886 | return handle_packet_out(ofconn, oh); | |
064af421 | 5887 | |
982697a4 | 5888 | case OFPTYPE_PORT_MOD: |
d1e2cf21 | 5889 | return handle_port_mod(ofconn, oh); |
064af421 | 5890 | |
982697a4 | 5891 | case OFPTYPE_FLOW_MOD: |
2e4f5fcf | 5892 | return handle_flow_mod(ofconn, oh); |
064af421 | 5893 | |
7395c052 NZ |
5894 | case OFPTYPE_GROUP_MOD: |
5895 | return handle_group_mod(ofconn, oh); | |
5896 | ||
918f2b82 AZ |
5897 | case OFPTYPE_TABLE_MOD: |
5898 | return handle_table_mod(ofconn, oh); | |
5899 | ||
9cae45dc JR |
5900 | case OFPTYPE_METER_MOD: |
5901 | return handle_meter_mod(ofconn, oh); | |
5902 | ||
982697a4 | 5903 | case OFPTYPE_BARRIER_REQUEST: |
d1e2cf21 | 5904 | return handle_barrier_request(ofconn, oh); |
064af421 | 5905 | |
6ea4776b JR |
5906 | case OFPTYPE_ROLE_REQUEST: |
5907 | return handle_role_request(ofconn, oh); | |
5908 | ||
d1e2cf21 | 5909 | /* OpenFlow replies. */ |
982697a4 | 5910 | case OFPTYPE_ECHO_REPLY: |
d1e2cf21 | 5911 | return 0; |
246e61ea | 5912 | |
d1e2cf21 | 5913 | /* Nicira extension requests. */ |
982697a4 | 5914 | case OFPTYPE_FLOW_MOD_TABLE_ID: |
6c1491fb | 5915 | return handle_nxt_flow_mod_table_id(ofconn, oh); |
d1e2cf21 | 5916 | |
982697a4 | 5917 | case OFPTYPE_SET_FLOW_FORMAT: |
d1e2cf21 BP |
5918 | return handle_nxt_set_flow_format(ofconn, oh); |
5919 | ||
982697a4 | 5920 | case OFPTYPE_SET_PACKET_IN_FORMAT: |
54834960 EJ |
5921 | return handle_nxt_set_packet_in_format(ofconn, oh); |
5922 | ||
982697a4 | 5923 | case OFPTYPE_SET_CONTROLLER_ID: |
a7349929 BP |
5924 | return handle_nxt_set_controller_id(ofconn, oh); |
5925 | ||
982697a4 | 5926 | case OFPTYPE_FLOW_AGE: |
f27f2134 BP |
5927 | /* Nothing to do. */ |
5928 | return 0; | |
5929 | ||
982697a4 | 5930 | case OFPTYPE_FLOW_MONITOR_CANCEL: |
2b07c8b1 BP |
5931 | return handle_flow_monitor_cancel(ofconn, oh); |
5932 | ||
982697a4 | 5933 | case OFPTYPE_SET_ASYNC_CONFIG: |
80d5aefd BP |
5934 | return handle_nxt_set_async_config(ofconn, oh); |
5935 | ||
c423b3b3 AC |
5936 | case OFPTYPE_GET_ASYNC_REQUEST: |
5937 | return handle_nxt_get_async_request(ofconn, oh); | |
5938 | ||
349adfb2 | 5939 | /* Statistics requests. */ |
982697a4 BP |
5940 | case OFPTYPE_DESC_STATS_REQUEST: |
5941 | return handle_desc_stats_request(ofconn, oh); | |
5942 | ||
5943 | case OFPTYPE_FLOW_STATS_REQUEST: | |
5944 | return handle_flow_stats_request(ofconn, oh); | |
5945 | ||
5946 | case OFPTYPE_AGGREGATE_STATS_REQUEST: | |
5947 | return handle_aggregate_stats_request(ofconn, oh); | |
5948 | ||
5949 | case OFPTYPE_TABLE_STATS_REQUEST: | |
5950 | return handle_table_stats_request(ofconn, oh); | |
5951 | ||
5952 | case OFPTYPE_PORT_STATS_REQUEST: | |
5953 | return handle_port_stats_request(ofconn, oh); | |
5954 | ||
5955 | case OFPTYPE_QUEUE_STATS_REQUEST: | |
5956 | return handle_queue_stats_request(ofconn, oh); | |
5957 | ||
5958 | case OFPTYPE_PORT_DESC_STATS_REQUEST: | |
5959 | return handle_port_desc_stats_request(ofconn, oh); | |
5960 | ||
5961 | case OFPTYPE_FLOW_MONITOR_STATS_REQUEST: | |
5962 | return handle_flow_monitor_request(ofconn, oh); | |
5963 | ||
261bd854 BP |
5964 | case OFPTYPE_METER_STATS_REQUEST: |
5965 | case OFPTYPE_METER_CONFIG_STATS_REQUEST: | |
9cae45dc JR |
5966 | return handle_meter_request(ofconn, oh, type); |
5967 | ||
261bd854 | 5968 | case OFPTYPE_METER_FEATURES_STATS_REQUEST: |
9cae45dc JR |
5969 | return handle_meter_features_request(ofconn, oh); |
5970 | ||
261bd854 | 5971 | case OFPTYPE_GROUP_STATS_REQUEST: |
7395c052 NZ |
5972 | return handle_group_stats_request(ofconn, oh); |
5973 | ||
261bd854 | 5974 | case OFPTYPE_GROUP_DESC_STATS_REQUEST: |
7395c052 NZ |
5975 | return handle_group_desc_stats_request(ofconn, oh); |
5976 | ||
261bd854 | 5977 | case OFPTYPE_GROUP_FEATURES_STATS_REQUEST: |
7395c052 NZ |
5978 | return handle_group_features_stats_request(ofconn, oh); |
5979 | ||
7395c052 | 5980 | case OFPTYPE_QUEUE_GET_CONFIG_REQUEST: |
e8f9a7bb | 5981 | return handle_queue_get_config_request(ofconn, oh); |
2e1ae200 | 5982 | |
777af88d AC |
5983 | case OFPTYPE_BUNDLE_CONTROL: |
5984 | return handle_bundle_control(ofconn, oh); | |
5985 | ||
5986 | case OFPTYPE_BUNDLE_ADD_MESSAGE: | |
5987 | return handle_bundle_add(ofconn, oh); | |
5988 | ||
982697a4 BP |
5989 | case OFPTYPE_HELLO: |
5990 | case OFPTYPE_ERROR: | |
5991 | case OFPTYPE_FEATURES_REPLY: | |
5992 | case OFPTYPE_GET_CONFIG_REPLY: | |
5993 | case OFPTYPE_PACKET_IN: | |
5994 | case OFPTYPE_FLOW_REMOVED: | |
5995 | case OFPTYPE_PORT_STATUS: | |
5996 | case OFPTYPE_BARRIER_REPLY: | |
c545d38d | 5997 | case OFPTYPE_QUEUE_GET_CONFIG_REPLY: |
982697a4 BP |
5998 | case OFPTYPE_DESC_STATS_REPLY: |
5999 | case OFPTYPE_FLOW_STATS_REPLY: | |
6000 | case OFPTYPE_QUEUE_STATS_REPLY: | |
6001 | case OFPTYPE_PORT_STATS_REPLY: | |
6002 | case OFPTYPE_TABLE_STATS_REPLY: | |
6003 | case OFPTYPE_AGGREGATE_STATS_REPLY: | |
6004 | case OFPTYPE_PORT_DESC_STATS_REPLY: | |
6005 | case OFPTYPE_ROLE_REPLY: | |
6006 | case OFPTYPE_FLOW_MONITOR_PAUSED: | |
6007 | case OFPTYPE_FLOW_MONITOR_RESUMED: | |
6008 | case OFPTYPE_FLOW_MONITOR_STATS_REPLY: | |
2e1ae200 | 6009 | case OFPTYPE_GET_ASYNC_REPLY: |
261bd854 BP |
6010 | case OFPTYPE_GROUP_STATS_REPLY: |
6011 | case OFPTYPE_GROUP_DESC_STATS_REPLY: | |
6012 | case OFPTYPE_GROUP_FEATURES_STATS_REPLY: | |
6013 | case OFPTYPE_METER_STATS_REPLY: | |
6014 | case OFPTYPE_METER_CONFIG_STATS_REPLY: | |
6015 | case OFPTYPE_METER_FEATURES_STATS_REPLY: | |
e8f9a7bb | 6016 | case OFPTYPE_TABLE_FEATURES_STATS_REQUEST: |
261bd854 | 6017 | case OFPTYPE_TABLE_FEATURES_STATS_REPLY: |
252f3411 | 6018 | case OFPTYPE_ROLE_STATUS: |
064af421 | 6019 | default: |
76ec08e0 YT |
6020 | if (ofpmsg_is_stat_request(oh)) { |
6021 | return OFPERR_OFPBRC_BAD_STAT; | |
6022 | } else { | |
6023 | return OFPERR_OFPBRC_BAD_TYPE; | |
6024 | } | |
064af421 | 6025 | } |
d1e2cf21 | 6026 | } |
064af421 | 6027 | |
b20f4073 | 6028 | static void |
e03248b7 | 6029 | handle_openflow(struct ofconn *ofconn, const struct ofpbuf *ofp_msg) |
15aaf599 | 6030 | OVS_EXCLUDED(ofproto_mutex) |
d1e2cf21 BP |
6031 | { |
6032 | int error = handle_openflow__(ofconn, ofp_msg); | |
b20f4073 | 6033 | if (error) { |
1f317cb5 | 6034 | ofconn_send_error(ofconn, ofpbuf_data(ofp_msg), error); |
064af421 | 6035 | } |
d1e2cf21 | 6036 | COVERAGE_INC(ofproto_recv_openflow); |
7ee20df1 BP |
6037 | } |
6038 | \f | |
6039 | /* Asynchronous operations. */ | |
6040 | ||
834fe5cb BP |
6041 | static enum ofperr |
6042 | send_buffered_packet(struct ofconn *ofconn, uint32_t buffer_id, | |
6043 | struct rule *rule) | |
15aaf599 | 6044 | OVS_REQUIRES(ofproto_mutex) |
7ee20df1 | 6045 | { |
834fe5cb BP |
6046 | enum ofperr error = 0; |
6047 | if (ofconn && buffer_id != UINT32_MAX) { | |
6048 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
6049 | struct ofpbuf *packet; | |
6050 | ofp_port_t in_port; | |
b277c7cc | 6051 | |
834fe5cb BP |
6052 | error = ofconn_pktbuf_retrieve(ofconn, buffer_id, &packet, &in_port); |
6053 | if (packet) { | |
6054 | struct rule_execute *re; | |
b277c7cc | 6055 | |
834fe5cb | 6056 | ofproto_rule_ref(rule); |
b277c7cc | 6057 | |
834fe5cb BP |
6058 | re = xmalloc(sizeof *re); |
6059 | re->rule = rule; | |
6060 | re->in_port = in_port; | |
6061 | re->packet = packet; | |
b277c7cc | 6062 | |
834fe5cb BP |
6063 | if (!guarded_list_push_back(&ofproto->rule_executes, |
6064 | &re->list_node, 1024)) { | |
a2143702 | 6065 | ofproto_rule_unref(rule); |
834fe5cb BP |
6066 | ofpbuf_delete(re->packet); |
6067 | free(re); | |
e615b0a3 | 6068 | } |
af822017 | 6069 | } |
7ee20df1 | 6070 | } |
834fe5cb | 6071 | return error; |
7ee20df1 | 6072 | } |
064af421 | 6073 | \f |
064af421 | 6074 | static uint64_t |
fa60c019 | 6075 | pick_datapath_id(const struct ofproto *ofproto) |
064af421 | 6076 | { |
fa60c019 | 6077 | const struct ofport *port; |
064af421 | 6078 | |
abe529af | 6079 | port = ofproto_get_port(ofproto, OFPP_LOCAL); |
fa60c019 BP |
6080 | if (port) { |
6081 | uint8_t ea[ETH_ADDR_LEN]; | |
6082 | int error; | |
6083 | ||
6084 | error = netdev_get_etheraddr(port->netdev, ea); | |
064af421 BP |
6085 | if (!error) { |
6086 | return eth_addr_to_uint64(ea); | |
6087 | } | |
fbfa2911 BP |
6088 | VLOG_WARN("%s: could not get MAC address for %s (%s)", |
6089 | ofproto->name, netdev_get_name(port->netdev), | |
10a89ef0 | 6090 | ovs_strerror(error)); |
064af421 | 6091 | } |
fa60c019 | 6092 | return ofproto->fallback_dpid; |
064af421 BP |
6093 | } |
6094 | ||
6095 | static uint64_t | |
6096 | pick_fallback_dpid(void) | |
6097 | { | |
6098 | uint8_t ea[ETH_ADDR_LEN]; | |
70150daf | 6099 | eth_addr_nicira_random(ea); |
064af421 BP |
6100 | return eth_addr_to_uint64(ea); |
6101 | } | |
6102 | \f | |
254750ce BP |
6103 | /* Table overflow policy. */ |
6104 | ||
ad3efdcb EJ |
6105 | /* Chooses and updates 'rulep' with a rule to evict from 'table'. Sets 'rulep' |
6106 | * to NULL if the table is not configured to evict rules or if the table | |
6107 | * contains no evictable rules. (Rules with a readlock on their evict rwlock, | |
6108 | * or with no timeouts are not evictable.) */ | |
6109 | static bool | |
6110 | choose_rule_to_evict(struct oftable *table, struct rule **rulep) | |
15aaf599 | 6111 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
6112 | { |
6113 | struct eviction_group *evg; | |
6114 | ||
ad3efdcb | 6115 | *rulep = NULL; |
254750ce | 6116 | if (!table->eviction_fields) { |
ad3efdcb | 6117 | return false; |
254750ce BP |
6118 | } |
6119 | ||
6120 | /* In the common case, the outer and inner loops here will each be entered | |
6121 | * exactly once: | |
6122 | * | |
6123 | * - The inner loop normally "return"s in its first iteration. If the | |
6124 | * eviction group has any evictable rules, then it always returns in | |
6125 | * some iteration. | |
6126 | * | |
6127 | * - The outer loop only iterates more than once if the largest eviction | |
6128 | * group has no evictable rules. | |
6129 | * | |
6130 | * - The outer loop can exit only if table's 'max_flows' is all filled up | |
afe2143d | 6131 | * by unevictable rules. */ |
254750ce BP |
6132 | HEAP_FOR_EACH (evg, size_node, &table->eviction_groups_by_size) { |
6133 | struct rule *rule; | |
6134 | ||
6135 | HEAP_FOR_EACH (rule, evg_node, &evg->rules) { | |
15aaf599 BP |
6136 | *rulep = rule; |
6137 | return true; | |
254750ce BP |
6138 | } |
6139 | } | |
6140 | ||
ad3efdcb | 6141 | return false; |
254750ce | 6142 | } |
254750ce BP |
6143 | \f |
6144 | /* Eviction groups. */ | |
6145 | ||
6146 | /* Returns the priority to use for an eviction_group that contains 'n_rules' | |
6147 | * rules. The priority contains low-order random bits to ensure that eviction | |
6148 | * groups with the same number of rules are prioritized randomly. */ | |
6149 | static uint32_t | |
6150 | eviction_group_priority(size_t n_rules) | |
6151 | { | |
6152 | uint16_t size = MIN(UINT16_MAX, n_rules); | |
6153 | return (size << 16) | random_uint16(); | |
6154 | } | |
6155 | ||
6156 | /* Updates 'evg', an eviction_group within 'table', following a change that | |
6157 | * adds or removes rules in 'evg'. */ | |
6158 | static void | |
6159 | eviction_group_resized(struct oftable *table, struct eviction_group *evg) | |
15aaf599 | 6160 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
6161 | { |
6162 | heap_change(&table->eviction_groups_by_size, &evg->size_node, | |
6163 | eviction_group_priority(heap_count(&evg->rules))); | |
6164 | } | |
6165 | ||
6166 | /* Destroys 'evg', an eviction_group within 'table': | |
6167 | * | |
6168 | * - Removes all the rules, if any, from 'evg'. (It doesn't destroy the | |
6169 | * rules themselves, just removes them from the eviction group.) | |
6170 | * | |
6171 | * - Removes 'evg' from 'table'. | |
6172 | * | |
6173 | * - Frees 'evg'. */ | |
6174 | static void | |
6175 | eviction_group_destroy(struct oftable *table, struct eviction_group *evg) | |
15aaf599 | 6176 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
6177 | { |
6178 | while (!heap_is_empty(&evg->rules)) { | |
6179 | struct rule *rule; | |
6180 | ||
6181 | rule = CONTAINER_OF(heap_pop(&evg->rules), struct rule, evg_node); | |
6182 | rule->eviction_group = NULL; | |
6183 | } | |
6184 | hmap_remove(&table->eviction_groups_by_id, &evg->id_node); | |
6185 | heap_remove(&table->eviction_groups_by_size, &evg->size_node); | |
6186 | heap_destroy(&evg->rules); | |
6187 | free(evg); | |
6188 | } | |
6189 | ||
6190 | /* Removes 'rule' from its eviction group, if any. */ | |
6191 | static void | |
6192 | eviction_group_remove_rule(struct rule *rule) | |
15aaf599 | 6193 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
6194 | { |
6195 | if (rule->eviction_group) { | |
6196 | struct oftable *table = &rule->ofproto->tables[rule->table_id]; | |
6197 | struct eviction_group *evg = rule->eviction_group; | |
6198 | ||
6199 | rule->eviction_group = NULL; | |
6200 | heap_remove(&evg->rules, &rule->evg_node); | |
6201 | if (heap_is_empty(&evg->rules)) { | |
6202 | eviction_group_destroy(table, evg); | |
6203 | } else { | |
6204 | eviction_group_resized(table, evg); | |
6205 | } | |
6206 | } | |
6207 | } | |
6208 | ||
6209 | /* Hashes the 'rule''s values for the eviction_fields of 'rule''s table, and | |
6210 | * returns the hash value. */ | |
6211 | static uint32_t | |
6212 | eviction_group_hash_rule(struct rule *rule) | |
15aaf599 | 6213 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
6214 | { |
6215 | struct oftable *table = &rule->ofproto->tables[rule->table_id]; | |
6216 | const struct mf_subfield *sf; | |
5cb7a798 | 6217 | struct flow flow; |
254750ce BP |
6218 | uint32_t hash; |
6219 | ||
6220 | hash = table->eviction_group_id_basis; | |
5cb7a798 | 6221 | miniflow_expand(&rule->cr.match.flow, &flow); |
254750ce BP |
6222 | for (sf = table->eviction_fields; |
6223 | sf < &table->eviction_fields[table->n_eviction_fields]; | |
6224 | sf++) | |
6225 | { | |
5cb7a798 | 6226 | if (mf_are_prereqs_ok(sf->field, &flow)) { |
254750ce BP |
6227 | union mf_value value; |
6228 | ||
5cb7a798 | 6229 | mf_get_value(sf->field, &flow, &value); |
254750ce BP |
6230 | if (sf->ofs) { |
6231 | bitwise_zero(&value, sf->field->n_bytes, 0, sf->ofs); | |
6232 | } | |
6233 | if (sf->ofs + sf->n_bits < sf->field->n_bytes * 8) { | |
6234 | unsigned int start = sf->ofs + sf->n_bits; | |
6235 | bitwise_zero(&value, sf->field->n_bytes, start, | |
6236 | sf->field->n_bytes * 8 - start); | |
6237 | } | |
6238 | hash = hash_bytes(&value, sf->field->n_bytes, hash); | |
6239 | } else { | |
6240 | hash = hash_int(hash, 0); | |
6241 | } | |
6242 | } | |
6243 | ||
6244 | return hash; | |
6245 | } | |
6246 | ||
6247 | /* Returns an eviction group within 'table' with the given 'id', creating one | |
6248 | * if necessary. */ | |
6249 | static struct eviction_group * | |
6250 | eviction_group_find(struct oftable *table, uint32_t id) | |
15aaf599 | 6251 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
6252 | { |
6253 | struct eviction_group *evg; | |
6254 | ||
6255 | HMAP_FOR_EACH_WITH_HASH (evg, id_node, id, &table->eviction_groups_by_id) { | |
6256 | return evg; | |
6257 | } | |
6258 | ||
6259 | evg = xmalloc(sizeof *evg); | |
6260 | hmap_insert(&table->eviction_groups_by_id, &evg->id_node, id); | |
6261 | heap_insert(&table->eviction_groups_by_size, &evg->size_node, | |
6262 | eviction_group_priority(0)); | |
6263 | heap_init(&evg->rules); | |
6264 | ||
6265 | return evg; | |
6266 | } | |
6267 | ||
6268 | /* Returns an eviction priority for 'rule'. The return value should be | |
6269 | * interpreted so that higher priorities make a rule more attractive candidates | |
dc437090 JR |
6270 | * for eviction. |
6271 | * Called only if have a timeout. */ | |
254750ce | 6272 | static uint32_t |
dc437090 | 6273 | rule_eviction_priority(struct ofproto *ofproto, struct rule *rule) |
15aaf599 | 6274 | OVS_REQUIRES(ofproto_mutex) |
254750ce | 6275 | { |
dc437090 JR |
6276 | long long int expiration = LLONG_MAX; |
6277 | long long int modified; | |
254750ce BP |
6278 | uint32_t expiration_offset; |
6279 | ||
dc437090 | 6280 | /* 'modified' needs protection even when we hold 'ofproto_mutex'. */ |
d10976b7 | 6281 | ovs_mutex_lock(&rule->mutex); |
dc437090 | 6282 | modified = rule->modified; |
d10976b7 | 6283 | ovs_mutex_unlock(&rule->mutex); |
dc437090 JR |
6284 | |
6285 | if (rule->hard_timeout) { | |
6286 | expiration = modified + rule->hard_timeout * 1000; | |
6287 | } | |
6288 | if (rule->idle_timeout) { | |
6289 | uint64_t packets, bytes; | |
6290 | long long int used; | |
6291 | long long int idle_expiration; | |
6292 | ||
6293 | ofproto->ofproto_class->rule_get_stats(rule, &packets, &bytes, &used); | |
6294 | idle_expiration = used + rule->idle_timeout * 1000; | |
6295 | expiration = MIN(expiration, idle_expiration); | |
6296 | } | |
6297 | ||
254750ce BP |
6298 | if (expiration == LLONG_MAX) { |
6299 | return 0; | |
6300 | } | |
6301 | ||
6302 | /* Calculate the time of expiration as a number of (approximate) seconds | |
6303 | * after program startup. | |
6304 | * | |
6305 | * This should work OK for program runs that last UINT32_MAX seconds or | |
6306 | * less. Therefore, please restart OVS at least once every 136 years. */ | |
6307 | expiration_offset = (expiration >> 10) - (time_boot_msec() >> 10); | |
6308 | ||
6309 | /* Invert the expiration offset because we're using a max-heap. */ | |
6310 | return UINT32_MAX - expiration_offset; | |
6311 | } | |
6312 | ||
6313 | /* Adds 'rule' to an appropriate eviction group for its oftable's | |
6314 | * configuration. Does nothing if 'rule''s oftable doesn't have eviction | |
6315 | * enabled, or if 'rule' is a permanent rule (one that will never expire on its | |
6316 | * own). | |
6317 | * | |
6318 | * The caller must ensure that 'rule' is not already in an eviction group. */ | |
6319 | static void | |
6320 | eviction_group_add_rule(struct rule *rule) | |
15aaf599 | 6321 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
6322 | { |
6323 | struct ofproto *ofproto = rule->ofproto; | |
6324 | struct oftable *table = &ofproto->tables[rule->table_id]; | |
a3779dbc | 6325 | bool has_timeout; |
254750ce | 6326 | |
dc437090 JR |
6327 | /* Timeouts may be modified only when holding 'ofproto_mutex'. We have it |
6328 | * so no additional protection is needed. */ | |
a3779dbc | 6329 | has_timeout = rule->hard_timeout || rule->idle_timeout; |
a3779dbc EJ |
6330 | |
6331 | if (table->eviction_fields && has_timeout) { | |
254750ce BP |
6332 | struct eviction_group *evg; |
6333 | ||
6334 | evg = eviction_group_find(table, eviction_group_hash_rule(rule)); | |
6335 | ||
6336 | rule->eviction_group = evg; | |
6337 | heap_insert(&evg->rules, &rule->evg_node, | |
dc437090 | 6338 | rule_eviction_priority(ofproto, rule)); |
254750ce BP |
6339 | eviction_group_resized(table, evg); |
6340 | } | |
6341 | } | |
6342 | \f | |
d0918789 BP |
6343 | /* oftables. */ |
6344 | ||
6345 | /* Initializes 'table'. */ | |
6346 | static void | |
6347 | oftable_init(struct oftable *table) | |
6348 | { | |
5c67e4af | 6349 | memset(table, 0, sizeof *table); |
476f36e8 | 6350 | classifier_init(&table->cls, flow_segment_u32s); |
ec1c5c7e | 6351 | table->max_flows = UINT_MAX; |
6b83a3c5 | 6352 | atomic_init(&table->config, (unsigned int)OFPROTO_TABLE_MISS_DEFAULT); |
f017d986 | 6353 | |
f017d986 JR |
6354 | classifier_set_prefix_fields(&table->cls, default_prefix_fields, |
6355 | ARRAY_SIZE(default_prefix_fields)); | |
d611866c SH |
6356 | |
6357 | atomic_init(&table->n_matched, 0); | |
6358 | atomic_init(&table->n_missed, 0); | |
d0918789 BP |
6359 | } |
6360 | ||
254750ce | 6361 | /* Destroys 'table', including its classifier and eviction groups. |
d0918789 BP |
6362 | * |
6363 | * The caller is responsible for freeing 'table' itself. */ | |
6364 | static void | |
6365 | oftable_destroy(struct oftable *table) | |
6366 | { | |
cb22974d | 6367 | ovs_assert(classifier_is_empty(&table->cls)); |
254750ce | 6368 | oftable_disable_eviction(table); |
d0918789 | 6369 | classifier_destroy(&table->cls); |
254750ce BP |
6370 | free(table->name); |
6371 | } | |
6372 | ||
6373 | /* Changes the name of 'table' to 'name'. If 'name' is NULL or the empty | |
6374 | * string, then 'table' will use its default name. | |
6375 | * | |
6376 | * This only affects the name exposed for a table exposed through the OpenFlow | |
6377 | * OFPST_TABLE (as printed by "ovs-ofctl dump-tables"). */ | |
6378 | static void | |
6379 | oftable_set_name(struct oftable *table, const char *name) | |
6380 | { | |
6381 | if (name && name[0]) { | |
6382 | int len = strnlen(name, OFP_MAX_TABLE_NAME_LEN); | |
6383 | if (!table->name || strncmp(name, table->name, len)) { | |
6384 | free(table->name); | |
6385 | table->name = xmemdup0(name, len); | |
6386 | } | |
6387 | } else { | |
6388 | free(table->name); | |
6389 | table->name = NULL; | |
6390 | } | |
6391 | } | |
6392 | ||
6393 | /* oftables support a choice of two policies when adding a rule would cause the | |
6394 | * number of flows in the table to exceed the configured maximum number: either | |
6395 | * they can refuse to add the new flow or they can evict some existing flow. | |
6396 | * This function configures the former policy on 'table'. */ | |
6397 | static void | |
6398 | oftable_disable_eviction(struct oftable *table) | |
15aaf599 | 6399 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
6400 | { |
6401 | if (table->eviction_fields) { | |
6402 | struct eviction_group *evg, *next; | |
6403 | ||
6404 | HMAP_FOR_EACH_SAFE (evg, next, id_node, | |
6405 | &table->eviction_groups_by_id) { | |
6406 | eviction_group_destroy(table, evg); | |
6407 | } | |
6408 | hmap_destroy(&table->eviction_groups_by_id); | |
6409 | heap_destroy(&table->eviction_groups_by_size); | |
6410 | ||
6411 | free(table->eviction_fields); | |
6412 | table->eviction_fields = NULL; | |
6413 | table->n_eviction_fields = 0; | |
6414 | } | |
6415 | } | |
6416 | ||
6417 | /* oftables support a choice of two policies when adding a rule would cause the | |
6418 | * number of flows in the table to exceed the configured maximum number: either | |
6419 | * they can refuse to add the new flow or they can evict some existing flow. | |
6420 | * This function configures the latter policy on 'table', with fairness based | |
6421 | * on the values of the 'n_fields' fields specified in 'fields'. (Specifying | |
6422 | * 'n_fields' as 0 disables fairness.) */ | |
6423 | static void | |
6424 | oftable_enable_eviction(struct oftable *table, | |
6425 | const struct mf_subfield *fields, size_t n_fields) | |
15aaf599 | 6426 | OVS_REQUIRES(ofproto_mutex) |
254750ce | 6427 | { |
254750ce BP |
6428 | struct rule *rule; |
6429 | ||
6430 | if (table->eviction_fields | |
6431 | && n_fields == table->n_eviction_fields | |
6432 | && (!n_fields | |
6433 | || !memcmp(fields, table->eviction_fields, | |
6434 | n_fields * sizeof *fields))) { | |
6435 | /* No change. */ | |
6436 | return; | |
6437 | } | |
6438 | ||
6439 | oftable_disable_eviction(table); | |
6440 | ||
6441 | table->n_eviction_fields = n_fields; | |
6442 | table->eviction_fields = xmemdup(fields, n_fields * sizeof *fields); | |
6443 | ||
6444 | table->eviction_group_id_basis = random_uint32(); | |
6445 | hmap_init(&table->eviction_groups_by_id); | |
6446 | heap_init(&table->eviction_groups_by_size); | |
6447 | ||
5f0476ce | 6448 | CLS_FOR_EACH (rule, cr, &table->cls) { |
254750ce BP |
6449 | eviction_group_add_rule(rule); |
6450 | } | |
d0918789 BP |
6451 | } |
6452 | ||
6453 | /* Removes 'rule' from the oftable that contains it. */ | |
6454 | static void | |
8b81d1ef | 6455 | oftable_remove_rule__(struct ofproto *ofproto, struct rule *rule) |
15aaf599 | 6456 | OVS_REQUIRES(ofproto_mutex) |
d0918789 | 6457 | { |
8b81d1ef BP |
6458 | struct classifier *cls = &ofproto->tables[rule->table_id].cls; |
6459 | ||
49a0e0eb | 6460 | classifier_remove(cls, CONST_CAST(struct cls_rule *, &rule->cr)); |
2c916028 | 6461 | |
98eaac36 | 6462 | cookies_remove(ofproto, rule); |
2c916028 | 6463 | |
254750ce | 6464 | eviction_group_remove_rule(rule); |
e503cc19 SH |
6465 | if (!list_is_empty(&rule->expirable)) { |
6466 | list_remove(&rule->expirable); | |
6467 | } | |
9cae45dc JR |
6468 | if (!list_is_empty(&rule->meter_list_node)) { |
6469 | list_remove(&rule->meter_list_node); | |
51b50dfd | 6470 | list_init(&rule->meter_list_node); |
9cae45dc | 6471 | } |
d0918789 BP |
6472 | } |
6473 | ||
0b4f2078 EJ |
6474 | static void |
6475 | oftable_remove_rule(struct rule *rule) | |
15aaf599 | 6476 | OVS_REQUIRES(ofproto_mutex) |
0b4f2078 | 6477 | { |
8b81d1ef | 6478 | oftable_remove_rule__(rule->ofproto, rule); |
0b4f2078 | 6479 | } |
d0918789 | 6480 | \f |
abe529af | 6481 | /* unixctl commands. */ |
7aa697dd | 6482 | |
abe529af | 6483 | struct ofproto * |
2ac6bedd | 6484 | ofproto_lookup(const char *name) |
7aa697dd | 6485 | { |
2ac6bedd | 6486 | struct ofproto *ofproto; |
7aa697dd | 6487 | |
2ac6bedd BP |
6488 | HMAP_FOR_EACH_WITH_HASH (ofproto, hmap_node, hash_string(name, 0), |
6489 | &all_ofprotos) { | |
6490 | if (!strcmp(ofproto->name, name)) { | |
6491 | return ofproto; | |
6492 | } | |
7aa697dd | 6493 | } |
2ac6bedd | 6494 | return NULL; |
7aa697dd BP |
6495 | } |
6496 | ||
6497 | static void | |
0e15264f BP |
6498 | ofproto_unixctl_list(struct unixctl_conn *conn, int argc OVS_UNUSED, |
6499 | const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED) | |
7aa697dd | 6500 | { |
7aa697dd | 6501 | struct ofproto *ofproto; |
7aa697dd | 6502 | struct ds results; |
7aa697dd | 6503 | |
7aa697dd | 6504 | ds_init(&results); |
2ac6bedd BP |
6505 | HMAP_FOR_EACH (ofproto, hmap_node, &all_ofprotos) { |
6506 | ds_put_format(&results, "%s\n", ofproto->name); | |
7aa697dd | 6507 | } |
bde9f75d | 6508 | unixctl_command_reply(conn, ds_cstr(&results)); |
7aa697dd | 6509 | ds_destroy(&results); |
7aa697dd BP |
6510 | } |
6511 | ||
6512 | static void | |
6513 | ofproto_unixctl_init(void) | |
6514 | { | |
6515 | static bool registered; | |
6516 | if (registered) { | |
6517 | return; | |
6518 | } | |
6519 | registered = true; | |
6520 | ||
0e15264f BP |
6521 | unixctl_command_register("ofproto/list", "", 0, 0, |
6522 | ofproto_unixctl_list, NULL); | |
064af421 | 6523 | } |
52a90c29 BP |
6524 | \f |
6525 | /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.) | |
6526 | * | |
6527 | * This is deprecated. It is only for compatibility with broken device drivers | |
6528 | * in old versions of Linux that do not properly support VLANs when VLAN | |
6529 | * devices are not used. When broken device drivers are no longer in | |
6530 | * widespread use, we will delete these interfaces. */ | |
6531 | ||
6532 | /* Sets a 1-bit in the 4096-bit 'vlan_bitmap' for each VLAN ID that is matched | |
6533 | * (exactly) by an OpenFlow rule in 'ofproto'. */ | |
6534 | void | |
6535 | ofproto_get_vlan_usage(struct ofproto *ofproto, unsigned long int *vlan_bitmap) | |
6536 | { | |
ac4aa4c8 JR |
6537 | struct match match; |
6538 | struct cls_rule target; | |
d0918789 | 6539 | const struct oftable *oftable; |
52a90c29 | 6540 | |
ac4aa4c8 JR |
6541 | match_init_catchall(&match); |
6542 | match_set_vlan_vid_masked(&match, htons(VLAN_CFI), htons(VLAN_CFI)); | |
6543 | cls_rule_init(&target, &match, 0); | |
6544 | ||
52a90c29 BP |
6545 | free(ofproto->vlan_bitmap); |
6546 | ofproto->vlan_bitmap = bitmap_allocate(4096); | |
6547 | ofproto->vlans_changed = false; | |
6548 | ||
d0918789 | 6549 | OFPROTO_FOR_EACH_TABLE (oftable, ofproto) { |
ac4aa4c8 | 6550 | struct rule *rule; |
52a90c29 | 6551 | |
5f0476ce | 6552 | CLS_FOR_EACH_TARGET (rule, cr, &oftable->cls, &target) { |
ac4aa4c8 JR |
6553 | if (minimask_get_vid_mask(&rule->cr.match.mask) == VLAN_VID_MASK) { |
6554 | uint16_t vid = miniflow_get_vid(&rule->cr.match.flow); | |
6555 | ||
6556 | bitmap_set1(vlan_bitmap, vid); | |
6557 | bitmap_set1(ofproto->vlan_bitmap, vid); | |
52a90c29 BP |
6558 | } |
6559 | } | |
6560 | } | |
059ef3c6 EJ |
6561 | |
6562 | cls_rule_destroy(&target); | |
52a90c29 BP |
6563 | } |
6564 | ||
6565 | /* Returns true if new VLANs have come into use by the flow table since the | |
6566 | * last call to ofproto_get_vlan_usage(). | |
6567 | * | |
6568 | * We don't track when old VLANs stop being used. */ | |
6569 | bool | |
6570 | ofproto_has_vlan_usage_changed(const struct ofproto *ofproto) | |
6571 | { | |
6572 | return ofproto->vlans_changed; | |
6573 | } | |
6574 | ||
6575 | /* Configures a VLAN splinter binding between the ports identified by OpenFlow | |
6576 | * port numbers 'vlandev_ofp_port' and 'realdev_ofp_port'. If | |
6577 | * 'realdev_ofp_port' is nonzero, then the VLAN device is enslaved to the real | |
6578 | * device as a VLAN splinter for VLAN ID 'vid'. If 'realdev_ofp_port' is zero, | |
6579 | * then the VLAN device is un-enslaved. */ | |
6580 | int | |
4e022ec0 AW |
6581 | ofproto_port_set_realdev(struct ofproto *ofproto, ofp_port_t vlandev_ofp_port, |
6582 | ofp_port_t realdev_ofp_port, int vid) | |
52a90c29 BP |
6583 | { |
6584 | struct ofport *ofport; | |
6585 | int error; | |
6586 | ||
cb22974d | 6587 | ovs_assert(vlandev_ofp_port != realdev_ofp_port); |
52a90c29 BP |
6588 | |
6589 | ofport = ofproto_get_port(ofproto, vlandev_ofp_port); | |
6590 | if (!ofport) { | |
6591 | VLOG_WARN("%s: cannot set realdev on nonexistent port %"PRIu16, | |
6592 | ofproto->name, vlandev_ofp_port); | |
6593 | return EINVAL; | |
6594 | } | |
6595 | ||
6596 | if (!ofproto->ofproto_class->set_realdev) { | |
6597 | if (!vlandev_ofp_port) { | |
6598 | return 0; | |
6599 | } | |
6600 | VLOG_WARN("%s: vlan splinters not supported", ofproto->name); | |
6601 | return EOPNOTSUPP; | |
6602 | } | |
6603 | ||
6604 | error = ofproto->ofproto_class->set_realdev(ofport, realdev_ofp_port, vid); | |
6605 | if (error) { | |
6606 | VLOG_WARN("%s: setting realdev on port %"PRIu16" (%s) failed (%s)", | |
6607 | ofproto->name, vlandev_ofp_port, | |
10a89ef0 | 6608 | netdev_get_name(ofport->netdev), ovs_strerror(error)); |
52a90c29 BP |
6609 | } |
6610 | return error; | |
6611 | } |