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064af421 | 1 | /* |
3fbbcba7 | 2 | * Copyright (c) 2009-2015 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" |
cf62fa4c | 47 | #include "dp-packet.h" |
064af421 BP |
48 | #include "packets.h" |
49 | #include "pinsched.h" | |
50 | #include "pktbuf.h" | |
51 | #include "poll-loop.h" | |
254750ce | 52 | #include "random.h" |
da4a6191 | 53 | #include "seq.h" |
064af421 | 54 | #include "shash.h" |
0d085684 | 55 | #include "simap.h" |
e8f9a7bb | 56 | #include "smap.h" |
b3c01ed3 | 57 | #include "sset.h" |
064af421 | 58 | #include "timeval.h" |
9558d2a5 | 59 | #include "tun-metadata.h" |
c4617b3c | 60 | #include "unaligned.h" |
4f2cad2c | 61 | #include "unixctl.h" |
e6211adc | 62 | #include "openvswitch/vlog.h" |
777af88d | 63 | #include "bundles.h" |
064af421 | 64 | |
d98e6007 | 65 | VLOG_DEFINE_THIS_MODULE(ofproto); |
064af421 | 66 | |
d76f09ea | 67 | COVERAGE_DEFINE(ofproto_flush); |
d76f09ea BP |
68 | COVERAGE_DEFINE(ofproto_packet_out); |
69 | COVERAGE_DEFINE(ofproto_queue_req); | |
70 | COVERAGE_DEFINE(ofproto_recv_openflow); | |
71 | COVERAGE_DEFINE(ofproto_reinit_ports); | |
d76f09ea BP |
72 | COVERAGE_DEFINE(ofproto_update_port); |
73 | ||
f017d986 JR |
74 | /* Default fields to use for prefix tries in each flow table, unless something |
75 | * else is configured. */ | |
76 | const enum mf_field_id default_prefix_fields[2] = | |
77 | { MFF_IPV4_DST, MFF_IPV4_SRC }; | |
78 | ||
d0918789 BP |
79 | /* oftable. */ |
80 | static void oftable_init(struct oftable *); | |
81 | static void oftable_destroy(struct oftable *); | |
878ae780 | 82 | |
254750ce BP |
83 | static void oftable_set_name(struct oftable *, const char *name); |
84 | ||
6787a49f | 85 | static enum ofperr evict_rules_from_table(struct oftable *) |
834fe5cb | 86 | OVS_REQUIRES(ofproto_mutex); |
82c22d34 BP |
87 | static void oftable_configure_eviction(struct oftable *, |
88 | unsigned int eviction, | |
89 | const struct mf_subfield *fields, | |
90 | size_t n_fields) | |
7394b8fb | 91 | OVS_REQUIRES(ofproto_mutex); |
254750ce | 92 | |
82c22d34 BP |
93 | /* This is the only combination of OpenFlow eviction flags that OVS supports: a |
94 | * combination of OF1.4+ importance, the remaining lifetime of the flow, and | |
95 | * fairness based on user-specified fields. */ | |
96 | #define OFPROTO_EVICTION_FLAGS \ | |
97 | (OFPTMPEF14_OTHER | OFPTMPEF14_IMPORTANCE | OFPTMPEF14_LIFETIME) | |
98 | ||
254750ce BP |
99 | /* A set of rules within a single OpenFlow table (oftable) that have the same |
100 | * values for the oftable's eviction_fields. A rule to be evicted, when one is | |
101 | * needed, is taken from the eviction group that contains the greatest number | |
102 | * of rules. | |
103 | * | |
104 | * An oftable owns any number of eviction groups, each of which contains any | |
105 | * number of rules. | |
106 | * | |
107 | * Membership in an eviction group is imprecise, based on the hash of the | |
108 | * oftable's eviction_fields (in the eviction_group's id_node.hash member). | |
109 | * That is, if two rules have different eviction_fields, but those | |
110 | * eviction_fields hash to the same value, then they will belong to the same | |
111 | * eviction_group anyway. | |
112 | * | |
113 | * (When eviction is not enabled on an oftable, we don't track any eviction | |
114 | * groups, to save time and space.) */ | |
115 | struct eviction_group { | |
116 | struct hmap_node id_node; /* In oftable's "eviction_groups_by_id". */ | |
117 | struct heap_node size_node; /* In oftable's "eviction_groups_by_size". */ | |
118 | struct heap rules; /* Contains "struct rule"s. */ | |
119 | }; | |
120 | ||
3d900aa7 BP |
121 | static bool choose_rule_to_evict(struct oftable *table, struct rule **rulep) |
122 | OVS_REQUIRES(ofproto_mutex); | |
f70b94de BP |
123 | static uint64_t rule_eviction_priority(struct ofproto *ofproto, struct rule *) |
124 | OVS_REQUIRES(ofproto_mutex); | |
3d900aa7 BP |
125 | static void eviction_group_add_rule(struct rule *) |
126 | OVS_REQUIRES(ofproto_mutex); | |
127 | static void eviction_group_remove_rule(struct rule *) | |
128 | OVS_REQUIRES(ofproto_mutex); | |
f29152ca | 129 | |
a9b22b7f BP |
130 | /* Criteria that flow_mod and other operations use for selecting rules on |
131 | * which to operate. */ | |
132 | struct rule_criteria { | |
133 | /* An OpenFlow table or 255 for all tables. */ | |
134 | uint8_t table_id; | |
135 | ||
136 | /* OpenFlow matching criteria. Interpreted different in "loose" way by | |
137 | * collect_rules_loose() and "strict" way by collect_rules_strict(), as | |
138 | * defined in the OpenFlow spec. */ | |
139 | struct cls_rule cr; | |
bd53aa17 | 140 | cls_version_t version; |
a9b22b7f BP |
141 | |
142 | /* Matching criteria for the OpenFlow cookie. Consider a bit B in a rule's | |
143 | * cookie and the corresponding bits C in 'cookie' and M in 'cookie_mask'. | |
144 | * The rule will not be selected if M is 1 and B != C. */ | |
145 | ovs_be64 cookie; | |
146 | ovs_be64 cookie_mask; | |
147 | ||
148 | /* Selection based on actions within a rule: | |
149 | * | |
150 | * If out_port != OFPP_ANY, selects only rules that output to out_port. | |
151 | * If out_group != OFPG_ALL, select only rules that output to out_group. */ | |
152 | ofp_port_t out_port; | |
153 | uint32_t out_group; | |
dd51dae2 BP |
154 | |
155 | /* If true, collects only rules that are modifiable. */ | |
156 | bool include_hidden; | |
157 | bool include_readonly; | |
a9b22b7f BP |
158 | }; |
159 | ||
160 | static void rule_criteria_init(struct rule_criteria *, uint8_t table_id, | |
eb391b76 | 161 | const struct match *match, int priority, |
18721c4a | 162 | cls_version_t version, |
a9b22b7f BP |
163 | ovs_be64 cookie, ovs_be64 cookie_mask, |
164 | ofp_port_t out_port, uint32_t out_group); | |
dd51dae2 BP |
165 | static void rule_criteria_require_rw(struct rule_criteria *, |
166 | bool can_write_readonly); | |
a9b22b7f BP |
167 | static void rule_criteria_destroy(struct rule_criteria *); |
168 | ||
35f48b8b BP |
169 | static enum ofperr collect_rules_loose(struct ofproto *, |
170 | const struct rule_criteria *, | |
171 | struct rule_collection *); | |
172 | ||
15aaf599 BP |
173 | /* A packet that needs to be passed to rule_execute(). |
174 | * | |
175 | * (We can't do this immediately from ofopgroup_complete() because that holds | |
176 | * ofproto_mutex, which rule_execute() needs released.) */ | |
35412852 | 177 | struct rule_execute { |
ca6ba700 | 178 | struct ovs_list list_node; /* In struct ofproto's "rule_executes" list. */ |
35412852 BP |
179 | struct rule *rule; /* Owns a reference to the rule. */ |
180 | ofp_port_t in_port; | |
cf62fa4c | 181 | struct dp_packet *packet; /* Owns the packet. */ |
35412852 BP |
182 | }; |
183 | ||
15aaf599 | 184 | static void run_rule_executes(struct ofproto *) OVS_EXCLUDED(ofproto_mutex); |
35412852 BP |
185 | static void destroy_rule_executes(struct ofproto *); |
186 | ||
35f48b8b BP |
187 | struct learned_cookie { |
188 | union { | |
189 | /* In struct ofproto's 'learned_cookies' hmap. */ | |
190 | struct hmap_node hmap_node OVS_GUARDED_BY(ofproto_mutex); | |
191 | ||
192 | /* In 'dead_cookies' list when removed from hmap. */ | |
ca6ba700 | 193 | struct ovs_list list_node; |
35f48b8b BP |
194 | } u; |
195 | ||
196 | /* Key. */ | |
197 | ovs_be64 cookie OVS_GUARDED_BY(ofproto_mutex); | |
198 | uint8_t table_id OVS_GUARDED_BY(ofproto_mutex); | |
199 | ||
200 | /* Number of references from "learn" actions. | |
201 | * | |
202 | * When this drops to 0, all of the flows in 'table_id' with the specified | |
203 | * 'cookie' are deleted. */ | |
204 | int n OVS_GUARDED_BY(ofproto_mutex); | |
205 | }; | |
206 | ||
207 | static const struct ofpact_learn *next_learn_with_delete( | |
208 | const struct rule_actions *, const struct ofpact_learn *start); | |
209 | ||
210 | static void learned_cookies_inc(struct ofproto *, const struct rule_actions *) | |
211 | OVS_REQUIRES(ofproto_mutex); | |
212 | static void learned_cookies_dec(struct ofproto *, const struct rule_actions *, | |
ca6ba700 | 213 | struct ovs_list *dead_cookies) |
35f48b8b | 214 | OVS_REQUIRES(ofproto_mutex); |
ca6ba700 | 215 | static void learned_cookies_flush(struct ofproto *, struct ovs_list *dead_cookies) |
35f48b8b BP |
216 | OVS_REQUIRES(ofproto_mutex); |
217 | ||
d0918789 | 218 | /* ofport. */ |
15aaf599 | 219 | static void ofport_destroy__(struct ofport *) OVS_EXCLUDED(ofproto_mutex); |
d0918789 BP |
220 | static void ofport_destroy(struct ofport *); |
221 | ||
222 | static void update_port(struct ofproto *, const char *devname); | |
223 | static int init_ports(struct ofproto *); | |
224 | static void reinit_ports(struct ofproto *); | |
7ee20df1 | 225 | |
fdcea803 GS |
226 | static long long int ofport_get_usage(const struct ofproto *, |
227 | ofp_port_t ofp_port); | |
228 | static void ofport_set_usage(struct ofproto *, ofp_port_t ofp_port, | |
229 | long long int last_used); | |
865b26a4 | 230 | static void ofport_remove_usage(struct ofproto *, ofp_port_t ofp_port); |
fdcea803 GS |
231 | |
232 | /* Ofport usage. | |
233 | * | |
234 | * Keeps track of the currently used and recently used ofport values and is | |
235 | * used to prevent immediate recycling of ofport values. */ | |
236 | struct ofport_usage { | |
237 | struct hmap_node hmap_node; /* In struct ofproto's "ofport_usage" hmap. */ | |
238 | ofp_port_t ofp_port; /* OpenFlow port number. */ | |
239 | long long int last_used; /* Last time the 'ofp_port' was used. LLONG_MAX | |
240 | represents in-use ofports. */ | |
241 | }; | |
242 | ||
254750ce | 243 | /* rule. */ |
f695ebfa JR |
244 | static void ofproto_rule_send_removed(struct rule *) |
245 | OVS_EXCLUDED(ofproto_mutex); | |
834fe5cb | 246 | static bool rule_is_readonly(const struct rule *); |
bc5e6a91 JR |
247 | static void ofproto_rule_insert__(struct ofproto *, struct rule *) |
248 | OVS_REQUIRES(ofproto_mutex); | |
802f84ff JR |
249 | static void ofproto_rule_remove__(struct ofproto *, struct rule *) |
250 | OVS_REQUIRES(ofproto_mutex); | |
254750ce | 251 | |
baae3d02 BP |
252 | /* The source of a flow_mod request, in the code that processes flow_mods. |
253 | * | |
254 | * A flow table modification request can be generated externally, via OpenFlow, | |
255 | * or internally through a function call. This structure indicates the source | |
256 | * of an OpenFlow-generated flow_mod. For an internal flow_mod, it isn't | |
257 | * meaningful and thus supplied as NULL. */ | |
258 | struct flow_mod_requester { | |
259 | struct ofconn *ofconn; /* Connection on which flow_mod arrived. */ | |
c84d8691 | 260 | const struct ofp_header *request; |
baae3d02 BP |
261 | }; |
262 | ||
d0918789 | 263 | /* OpenFlow. */ |
39c94593 | 264 | static enum ofperr replace_rule_create(struct ofproto *, |
dd27be82 | 265 | struct ofputil_flow_mod *, |
39c94593 JR |
266 | struct cls_rule *cr, uint8_t table_id, |
267 | struct rule *old_rule, | |
268 | struct rule **new_rule) | |
269 | OVS_REQUIRES(ofproto_mutex); | |
270 | ||
8be00367 JR |
271 | static void replace_rule_start(struct ofproto *, cls_version_t version, |
272 | struct rule *old_rule, struct rule *new_rule, | |
39c94593 | 273 | struct cls_conjunction *, size_t n_conjs) |
dd27be82 | 274 | OVS_REQUIRES(ofproto_mutex); |
39c94593 | 275 | |
6787a49f JR |
276 | static void replace_rule_revert(struct ofproto *, struct rule *old_rule, |
277 | struct rule *new_rule) | |
39c94593 JR |
278 | OVS_REQUIRES(ofproto_mutex); |
279 | ||
280 | static void replace_rule_finish(struct ofproto *, struct ofputil_flow_mod *, | |
281 | const struct flow_mod_requester *, | |
282 | struct rule *old_rule, struct rule *new_rule, | |
283 | struct ovs_list *dead_cookies) | |
dd27be82 | 284 | OVS_REQUIRES(ofproto_mutex); |
39c94593 | 285 | static void delete_flows__(struct rule_collection *, |
9ca4a86f BP |
286 | enum ofp_flow_removed_reason, |
287 | const struct flow_mod_requester *) | |
15aaf599 | 288 | OVS_REQUIRES(ofproto_mutex); |
834fe5cb | 289 | |
c84d8691 JR |
290 | static void send_buffered_packet(const struct flow_mod_requester *, |
291 | uint32_t buffer_id, struct rule *) | |
834fe5cb BP |
292 | OVS_REQUIRES(ofproto_mutex); |
293 | ||
7e9f8266 BP |
294 | static bool ofproto_group_exists__(const struct ofproto *ofproto, |
295 | uint32_t group_id) | |
296 | OVS_REQ_RDLOCK(ofproto->groups_rwlock); | |
84d68566 SH |
297 | static bool ofproto_group_exists(const struct ofproto *ofproto, |
298 | uint32_t group_id) | |
7e9f8266 | 299 | OVS_EXCLUDED(ofproto->groups_rwlock); |
7395c052 | 300 | static enum ofperr add_group(struct ofproto *, struct ofputil_group_mod *); |
b20f4073 | 301 | static void handle_openflow(struct ofconn *, const struct ofpbuf *); |
8be00367 JR |
302 | static enum ofperr ofproto_flow_mod_start(struct ofproto *, |
303 | struct ofproto_flow_mod *) | |
1f42be1c | 304 | OVS_REQUIRES(ofproto_mutex); |
8be00367 JR |
305 | static void ofproto_flow_mod_finish(struct ofproto *, |
306 | struct ofproto_flow_mod *, | |
307 | const struct flow_mod_requester *) | |
1f42be1c | 308 | OVS_REQUIRES(ofproto_mutex); |
baae3d02 | 309 | static enum ofperr handle_flow_mod__(struct ofproto *, |
8be00367 | 310 | struct ofproto_flow_mod *, |
baae3d02 | 311 | const struct flow_mod_requester *) |
15aaf599 | 312 | OVS_EXCLUDED(ofproto_mutex); |
65e0be10 BP |
313 | static void calc_duration(long long int start, long long int now, |
314 | uint32_t *sec, uint32_t *nsec); | |
f29152ca | 315 | |
d0918789 BP |
316 | /* ofproto. */ |
317 | static uint64_t pick_datapath_id(const struct ofproto *); | |
318 | static uint64_t pick_fallback_dpid(void); | |
319 | static void ofproto_destroy__(struct ofproto *); | |
ada3428f | 320 | static void update_mtu(struct ofproto *, struct ofport *); |
6b3f7f02 | 321 | static void meter_delete(struct ofproto *, uint32_t first, uint32_t last); |
062fea06 | 322 | static void meter_insert_rule(struct rule *); |
f29152ca | 323 | |
d0918789 | 324 | /* unixctl. */ |
abe529af | 325 | static void ofproto_unixctl_init(void); |
f29152ca | 326 | |
abe529af BP |
327 | /* All registered ofproto classes, in probe order. */ |
328 | static const struct ofproto_class **ofproto_classes; | |
329 | static size_t n_ofproto_classes; | |
330 | static size_t allocated_ofproto_classes; | |
7aa697dd | 331 | |
15aaf599 BP |
332 | /* Global lock that protects all flow table operations. */ |
333 | struct ovs_mutex ofproto_mutex = OVS_MUTEX_INITIALIZER; | |
abe7b10f | 334 | |
e79a6c83 | 335 | unsigned ofproto_flow_limit = OFPROTO_FLOW_LIMIT_DEFAULT; |
72310b04 | 336 | unsigned ofproto_max_idle = OFPROTO_MAX_IDLE_DEFAULT; |
380f49c4 | 337 | |
e79a6c83 | 338 | size_t n_handlers, n_revalidators; |
f2eee189 AW |
339 | size_t n_dpdk_rxqs; |
340 | char *pmd_cpu_mask; | |
6567010f | 341 | |
f797957a | 342 | /* Map from datapath name to struct ofproto, for use by unixctl commands. */ |
abe529af | 343 | static struct hmap all_ofprotos = HMAP_INITIALIZER(&all_ofprotos); |
ebe482fd | 344 | |
e1b1d06a JP |
345 | /* Initial mappings of port to OpenFlow number mappings. */ |
346 | static struct shash init_ofp_ports = SHASH_INITIALIZER(&init_ofp_ports); | |
347 | ||
abe529af | 348 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); |
f29152ca | 349 | |
40358701 GS |
350 | /* The default value of true waits for flow restore. */ |
351 | static bool flow_restore_wait = true; | |
352 | ||
b0408fca JP |
353 | /* Must be called to initialize the ofproto library. |
354 | * | |
355 | * The caller may pass in 'iface_hints', which contains an shash of | |
356 | * "iface_hint" elements indexed by the interface's name. The provider | |
357 | * may use these hints to describe the startup configuration in order to | |
358 | * reinitialize its state. The caller owns the provided data, so a | |
359 | * provider will make copies of anything required. An ofproto provider | |
360 | * will remove any existing state that is not described by the hint, and | |
361 | * may choose to remove it all. */ | |
362 | void | |
363 | ofproto_init(const struct shash *iface_hints) | |
abe529af | 364 | { |
e1b1d06a | 365 | struct shash_node *node; |
b0408fca | 366 | size_t i; |
f29152ca | 367 | |
b0408fca JP |
368 | ofproto_class_register(&ofproto_dpif_class); |
369 | ||
e1b1d06a JP |
370 | /* Make a local copy, since we don't own 'iface_hints' elements. */ |
371 | SHASH_FOR_EACH(node, iface_hints) { | |
372 | const struct iface_hint *orig_hint = node->data; | |
373 | struct iface_hint *new_hint = xmalloc(sizeof *new_hint); | |
374 | const char *br_type = ofproto_normalize_type(orig_hint->br_type); | |
375 | ||
376 | new_hint->br_name = xstrdup(orig_hint->br_name); | |
377 | new_hint->br_type = xstrdup(br_type); | |
378 | new_hint->ofp_port = orig_hint->ofp_port; | |
379 | ||
380 | shash_add(&init_ofp_ports, node->name, new_hint); | |
381 | } | |
382 | ||
b0408fca | 383 | for (i = 0; i < n_ofproto_classes; i++) { |
e1b1d06a | 384 | ofproto_classes[i]->init(&init_ofp_ports); |
abe529af BP |
385 | } |
386 | } | |
f29152ca | 387 | |
abe529af BP |
388 | /* 'type' should be a normalized datapath type, as returned by |
389 | * ofproto_normalize_type(). Returns the corresponding ofproto_class | |
390 | * structure, or a null pointer if there is none registered for 'type'. */ | |
391 | static const struct ofproto_class * | |
392 | ofproto_class_find__(const char *type) | |
393 | { | |
394 | size_t i; | |
f29152ca | 395 | |
abe529af BP |
396 | for (i = 0; i < n_ofproto_classes; i++) { |
397 | const struct ofproto_class *class = ofproto_classes[i]; | |
398 | struct sset types; | |
399 | bool found; | |
064af421 | 400 | |
abe529af BP |
401 | sset_init(&types); |
402 | class->enumerate_types(&types); | |
403 | found = sset_contains(&types, type); | |
404 | sset_destroy(&types); | |
bcf84111 | 405 | |
abe529af BP |
406 | if (found) { |
407 | return class; | |
408 | } | |
409 | } | |
410 | VLOG_WARN("unknown datapath type %s", type); | |
411 | return NULL; | |
412 | } | |
064af421 | 413 | |
abe529af BP |
414 | /* Registers a new ofproto class. After successful registration, new ofprotos |
415 | * of that type can be created using ofproto_create(). */ | |
416 | int | |
417 | ofproto_class_register(const struct ofproto_class *new_class) | |
418 | { | |
419 | size_t i; | |
7aa697dd | 420 | |
abe529af BP |
421 | for (i = 0; i < n_ofproto_classes; i++) { |
422 | if (ofproto_classes[i] == new_class) { | |
423 | return EEXIST; | |
424 | } | |
425 | } | |
064af421 | 426 | |
abe529af BP |
427 | if (n_ofproto_classes >= allocated_ofproto_classes) { |
428 | ofproto_classes = x2nrealloc(ofproto_classes, | |
429 | &allocated_ofproto_classes, | |
430 | sizeof *ofproto_classes); | |
431 | } | |
432 | ofproto_classes[n_ofproto_classes++] = new_class; | |
433 | return 0; | |
434 | } | |
064af421 | 435 | |
abe529af BP |
436 | /* Unregisters a datapath provider. 'type' must have been previously |
437 | * registered and not currently be in use by any ofprotos. After | |
438 | * unregistration new datapaths of that type cannot be opened using | |
439 | * ofproto_create(). */ | |
440 | int | |
441 | ofproto_class_unregister(const struct ofproto_class *class) | |
442 | { | |
443 | size_t i; | |
76ce9432 | 444 | |
abe529af BP |
445 | for (i = 0; i < n_ofproto_classes; i++) { |
446 | if (ofproto_classes[i] == class) { | |
447 | for (i++; i < n_ofproto_classes; i++) { | |
448 | ofproto_classes[i - 1] = ofproto_classes[i]; | |
449 | } | |
450 | n_ofproto_classes--; | |
451 | return 0; | |
452 | } | |
453 | } | |
454 | VLOG_WARN("attempted to unregister an ofproto class that is not " | |
455 | "registered"); | |
456 | return EAFNOSUPPORT; | |
457 | } | |
4a4cdb3b | 458 | |
f79e673f BP |
459 | /* Clears 'types' and enumerates all registered ofproto types into it. The |
460 | * caller must first initialize the sset. */ | |
461 | void | |
462 | ofproto_enumerate_types(struct sset *types) | |
463 | { | |
abe529af | 464 | size_t i; |
064af421 | 465 | |
c799c306 | 466 | sset_clear(types); |
abe529af BP |
467 | for (i = 0; i < n_ofproto_classes; i++) { |
468 | ofproto_classes[i]->enumerate_types(types); | |
469 | } | |
f79e673f | 470 | } |
064af421 | 471 | |
f79e673f BP |
472 | /* Returns the fully spelled out name for the given ofproto 'type'. |
473 | * | |
474 | * Normalized type string can be compared with strcmp(). Unnormalized type | |
475 | * string might be the same even if they have different spellings. */ | |
476 | const char * | |
477 | ofproto_normalize_type(const char *type) | |
478 | { | |
abe529af | 479 | return type && type[0] ? type : "system"; |
f79e673f | 480 | } |
064af421 | 481 | |
f79e673f BP |
482 | /* Clears 'names' and enumerates the names of all known created ofprotos with |
483 | * the given 'type'. The caller must first initialize the sset. Returns 0 if | |
484 | * successful, otherwise a positive errno value. | |
485 | * | |
486 | * Some kinds of datapaths might not be practically enumerable. This is not | |
487 | * considered an error. */ | |
488 | int | |
489 | ofproto_enumerate_names(const char *type, struct sset *names) | |
490 | { | |
abe529af BP |
491 | const struct ofproto_class *class = ofproto_class_find__(type); |
492 | return class ? class->enumerate_names(type, names) : EAFNOSUPPORT; | |
239ad7d1 | 493 | } |
7aa697dd | 494 | |
39c94593 JR |
495 | static void |
496 | ofproto_bump_tables_version(struct ofproto *ofproto) | |
497 | { | |
498 | ++ofproto->tables_version; | |
499 | ofproto->ofproto_class->set_tables_version(ofproto, | |
500 | ofproto->tables_version); | |
501 | } | |
502 | ||
064af421 | 503 | int |
abe529af | 504 | ofproto_create(const char *datapath_name, const char *datapath_type, |
064af421 BP |
505 | struct ofproto **ofprotop) |
506 | { | |
abe529af BP |
507 | const struct ofproto_class *class; |
508 | struct ofproto *ofproto; | |
064af421 | 509 | int error; |
c2f0373a | 510 | int i; |
064af421 BP |
511 | |
512 | *ofprotop = NULL; | |
513 | ||
7aa697dd BP |
514 | ofproto_unixctl_init(); |
515 | ||
abe529af BP |
516 | datapath_type = ofproto_normalize_type(datapath_type); |
517 | class = ofproto_class_find__(datapath_type); | |
518 | if (!class) { | |
519 | VLOG_WARN("could not create datapath %s of unknown type %s", | |
520 | datapath_name, datapath_type); | |
521 | return EAFNOSUPPORT; | |
064af421 BP |
522 | } |
523 | ||
abe529af BP |
524 | ofproto = class->alloc(); |
525 | if (!ofproto) { | |
526 | VLOG_ERR("failed to allocate datapath %s of type %s", | |
527 | datapath_name, datapath_type); | |
528 | return ENOMEM; | |
529 | } | |
530 | ||
531 | /* Initialize. */ | |
abe7b10f | 532 | ovs_mutex_lock(&ofproto_mutex); |
abe529af BP |
533 | memset(ofproto, 0, sizeof *ofproto); |
534 | ofproto->ofproto_class = class; | |
535 | ofproto->name = xstrdup(datapath_name); | |
536 | ofproto->type = xstrdup(datapath_type); | |
537 | hmap_insert(&all_ofprotos, &ofproto->hmap_node, | |
538 | hash_string(ofproto->name, 0)); | |
539 | ofproto->datapath_id = 0; | |
8402c74b | 540 | ofproto->forward_bpdu = false; |
abe529af | 541 | ofproto->fallback_dpid = pick_fallback_dpid(); |
061bfea4 BP |
542 | ofproto->mfr_desc = NULL; |
543 | ofproto->hw_desc = NULL; | |
544 | ofproto->sw_desc = NULL; | |
545 | ofproto->serial_desc = NULL; | |
546 | ofproto->dp_desc = NULL; | |
7257b535 | 547 | ofproto->frag_handling = OFPC_FRAG_NORMAL; |
abe529af | 548 | hmap_init(&ofproto->ports); |
fdcea803 | 549 | hmap_init(&ofproto->ofport_usage); |
abe529af | 550 | shash_init(&ofproto->port_by_name); |
e1b1d06a | 551 | simap_init(&ofproto->ofp_requests); |
430dbb14 | 552 | ofproto->max_ports = ofp_to_u16(OFPP_MAX); |
448c2fa8 | 553 | ofproto->eviction_group_timer = LLONG_MIN; |
6c1491fb BP |
554 | ofproto->tables = NULL; |
555 | ofproto->n_tables = 0; | |
621b8064 | 556 | ofproto->tables_version = CLS_MIN_VERSION; |
98eaac36 | 557 | hindex_init(&ofproto->cookies); |
35f48b8b | 558 | hmap_init(&ofproto->learned_cookies); |
e503cc19 | 559 | list_init(&ofproto->expirable); |
abe529af | 560 | ofproto->connmgr = connmgr_create(ofproto, datapath_name, datapath_name); |
35412852 | 561 | guarded_list_init(&ofproto->rule_executes); |
52a90c29 BP |
562 | ofproto->vlan_bitmap = NULL; |
563 | ofproto->vlans_changed = false; | |
ada3428f | 564 | ofproto->min_mtu = INT_MAX; |
7395c052 NZ |
565 | ovs_rwlock_init(&ofproto->groups_rwlock); |
566 | hmap_init(&ofproto->groups); | |
abe7b10f | 567 | ovs_mutex_unlock(&ofproto_mutex); |
0ae01c64 | 568 | ofproto->ogf.types = 0xf; |
7cb279c2 SH |
569 | ofproto->ogf.capabilities = OFPGFC_CHAINING | OFPGFC_SELECT_LIVENESS | |
570 | OFPGFC_SELECT_WEIGHT; | |
08d1e234 BP |
571 | for (i = 0; i < 4; i++) { |
572 | ofproto->ogf.max_groups[i] = OFPG_MAX; | |
573 | ofproto->ogf.ofpacts[i] = (UINT64_C(1) << N_OFPACTS) - 1; | |
574 | } | |
9558d2a5 | 575 | tun_metadata_init(); |
abe529af | 576 | |
0f5f95a9 | 577 | error = ofproto->ofproto_class->construct(ofproto); |
19a87e36 | 578 | if (error) { |
abe529af | 579 | VLOG_ERR("failed to open datapath %s: %s", |
10a89ef0 | 580 | datapath_name, ovs_strerror(error)); |
58f19539 | 581 | connmgr_destroy(ofproto->connmgr); |
abe529af | 582 | ofproto_destroy__(ofproto); |
19a87e36 BP |
583 | return error; |
584 | } | |
073e2a6f | 585 | |
c2f0373a | 586 | /* Check that hidden tables, if any, are at the end. */ |
cb22974d | 587 | ovs_assert(ofproto->n_tables); |
c2f0373a BP |
588 | for (i = 0; i + 1 < ofproto->n_tables; i++) { |
589 | enum oftable_flags flags = ofproto->tables[i].flags; | |
590 | enum oftable_flags next_flags = ofproto->tables[i + 1].flags; | |
591 | ||
cb22974d | 592 | ovs_assert(!(flags & OFTABLE_HIDDEN) || next_flags & OFTABLE_HIDDEN); |
c2f0373a | 593 | } |
19a87e36 | 594 | |
abe529af | 595 | ofproto->datapath_id = pick_datapath_id(ofproto); |
abe529af | 596 | init_ports(ofproto); |
7aa697dd | 597 | |
9cae45dc JR |
598 | /* Initialize meters table. */ |
599 | if (ofproto->ofproto_class->meter_get_features) { | |
600 | ofproto->ofproto_class->meter_get_features(ofproto, | |
601 | &ofproto->meter_features); | |
602 | } else { | |
603 | memset(&ofproto->meter_features, 0, sizeof ofproto->meter_features); | |
604 | } | |
605 | ofproto->meters = xzalloc((ofproto->meter_features.max_meters + 1) | |
606 | * sizeof(struct meter *)); | |
607 | ||
621b8064 | 608 | /* Set the initial tables version. */ |
39c94593 | 609 | ofproto_bump_tables_version(ofproto); |
621b8064 | 610 | |
abe529af | 611 | *ofprotop = ofproto; |
064af421 BP |
612 | return 0; |
613 | } | |
614 | ||
91858960 BP |
615 | /* Must be called (only) by an ofproto implementation in its constructor |
616 | * function. See the large comment on 'construct' in struct ofproto_class for | |
617 | * details. */ | |
0f5f95a9 BP |
618 | void |
619 | ofproto_init_tables(struct ofproto *ofproto, int n_tables) | |
620 | { | |
621 | struct oftable *table; | |
622 | ||
cb22974d BP |
623 | ovs_assert(!ofproto->n_tables); |
624 | ovs_assert(n_tables >= 1 && n_tables <= 255); | |
0f5f95a9 BP |
625 | |
626 | ofproto->n_tables = n_tables; | |
627 | ofproto->tables = xmalloc(n_tables * sizeof *ofproto->tables); | |
628 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { | |
629 | oftable_init(table); | |
630 | } | |
631 | } | |
632 | ||
91858960 BP |
633 | /* To be optionally called (only) by an ofproto implementation in its |
634 | * constructor function. See the large comment on 'construct' in struct | |
635 | * ofproto_class for details. | |
636 | * | |
637 | * Sets the maximum number of ports to 'max_ports'. The ofproto generic layer | |
638 | * will then ensure that actions passed into the ofproto implementation will | |
639 | * not refer to OpenFlow ports numbered 'max_ports' or higher. If this | |
640 | * function is not called, there will be no such restriction. | |
641 | * | |
642 | * Reserved ports numbered OFPP_MAX and higher are special and not subject to | |
643 | * the 'max_ports' restriction. */ | |
644 | void | |
430dbb14 | 645 | ofproto_init_max_ports(struct ofproto *ofproto, uint16_t max_ports) |
91858960 | 646 | { |
430dbb14 | 647 | ovs_assert(max_ports <= ofp_to_u16(OFPP_MAX)); |
91858960 BP |
648 | ofproto->max_ports = max_ports; |
649 | } | |
650 | ||
e825ace2 BP |
651 | uint64_t |
652 | ofproto_get_datapath_id(const struct ofproto *ofproto) | |
653 | { | |
654 | return ofproto->datapath_id; | |
655 | } | |
656 | ||
064af421 BP |
657 | void |
658 | ofproto_set_datapath_id(struct ofproto *p, uint64_t datapath_id) | |
659 | { | |
660 | uint64_t old_dpid = p->datapath_id; | |
fa60c019 | 661 | p->datapath_id = datapath_id ? datapath_id : pick_datapath_id(p); |
064af421 | 662 | if (p->datapath_id != old_dpid) { |
76ce9432 BP |
663 | /* Force all active connections to reconnect, since there is no way to |
664 | * notify a controller that the datapath ID has changed. */ | |
fa05809b | 665 | ofproto_reconnect_controllers(p); |
064af421 BP |
666 | } |
667 | } | |
668 | ||
76ce9432 BP |
669 | void |
670 | ofproto_set_controllers(struct ofproto *p, | |
671 | const struct ofproto_controller *controllers, | |
1d9ffc17 | 672 | size_t n_controllers, uint32_t allowed_versions) |
76ce9432 | 673 | { |
1d9ffc17 SH |
674 | connmgr_set_controllers(p->connmgr, controllers, n_controllers, |
675 | allowed_versions); | |
064af421 BP |
676 | } |
677 | ||
31681a5d JP |
678 | void |
679 | ofproto_set_fail_mode(struct ofproto *p, enum ofproto_fail_mode fail_mode) | |
680 | { | |
19a87e36 | 681 | connmgr_set_fail_mode(p->connmgr, fail_mode); |
31681a5d JP |
682 | } |
683 | ||
fa05809b BP |
684 | /* Drops the connections between 'ofproto' and all of its controllers, forcing |
685 | * them to reconnect. */ | |
686 | void | |
687 | ofproto_reconnect_controllers(struct ofproto *ofproto) | |
688 | { | |
19a87e36 | 689 | connmgr_reconnect(ofproto->connmgr); |
917e50e1 BP |
690 | } |
691 | ||
692 | /* Sets the 'n' TCP port addresses in 'extras' as ones to which 'ofproto''s | |
693 | * in-band control should guarantee access, in the same way that in-band | |
694 | * control guarantees access to OpenFlow controllers. */ | |
695 | void | |
696 | ofproto_set_extra_in_band_remotes(struct ofproto *ofproto, | |
697 | const struct sockaddr_in *extras, size_t n) | |
698 | { | |
19a87e36 | 699 | connmgr_set_extra_in_band_remotes(ofproto->connmgr, extras, n); |
917e50e1 BP |
700 | } |
701 | ||
b1da6250 BP |
702 | /* Sets the OpenFlow queue used by flows set up by in-band control on |
703 | * 'ofproto' to 'queue_id'. If 'queue_id' is negative, then in-band control | |
704 | * flows will use the default queue. */ | |
705 | void | |
706 | ofproto_set_in_band_queue(struct ofproto *ofproto, int queue_id) | |
707 | { | |
19a87e36 | 708 | connmgr_set_in_band_queue(ofproto->connmgr, queue_id); |
b1da6250 BP |
709 | } |
710 | ||
084f5290 SH |
711 | /* Sets the number of flows at which eviction from the kernel flow table |
712 | * will occur. */ | |
713 | void | |
e79a6c83 | 714 | ofproto_set_flow_limit(unsigned limit) |
084f5290 | 715 | { |
e79a6c83 | 716 | ofproto_flow_limit = limit; |
084f5290 SH |
717 | } |
718 | ||
72310b04 JS |
719 | /* Sets the maximum idle time for flows in the datapath before they are |
720 | * expired. */ | |
721 | void | |
722 | ofproto_set_max_idle(unsigned max_idle) | |
723 | { | |
724 | ofproto_max_idle = max_idle; | |
725 | } | |
726 | ||
b53055f4 | 727 | /* If forward_bpdu is true, the NORMAL action will forward frames with |
8402c74b SS |
728 | * reserved (e.g. STP) destination Ethernet addresses. if forward_bpdu is false, |
729 | * the NORMAL action will drop these frames. */ | |
730 | void | |
731 | ofproto_set_forward_bpdu(struct ofproto *ofproto, bool forward_bpdu) | |
732 | { | |
733 | bool old_val = ofproto->forward_bpdu; | |
734 | ofproto->forward_bpdu = forward_bpdu; | |
735 | if (old_val != ofproto->forward_bpdu) { | |
736 | if (ofproto->ofproto_class->forward_bpdu_changed) { | |
737 | ofproto->ofproto_class->forward_bpdu_changed(ofproto); | |
738 | } | |
b53055f4 | 739 | } |
8402c74b SS |
740 | } |
741 | ||
e764773c | 742 | /* Sets the MAC aging timeout for the OFPP_NORMAL action on 'ofproto' to |
c4069512 BP |
743 | * 'idle_time', in seconds, and the maximum number of MAC table entries to |
744 | * 'max_entries'. */ | |
e764773c | 745 | void |
c4069512 BP |
746 | ofproto_set_mac_table_config(struct ofproto *ofproto, unsigned idle_time, |
747 | size_t max_entries) | |
e764773c | 748 | { |
c4069512 BP |
749 | if (ofproto->ofproto_class->set_mac_table_config) { |
750 | ofproto->ofproto_class->set_mac_table_config(ofproto, idle_time, | |
751 | max_entries); | |
e764773c BP |
752 | } |
753 | } | |
754 | ||
7c38d0a5 FL |
755 | /* Multicast snooping configuration. */ |
756 | ||
757 | /* Configures multicast snooping on 'ofproto' using the settings | |
758 | * defined in 's'. If 's' is NULL, disables multicast snooping. | |
759 | * | |
760 | * Returns 0 if successful, otherwise a positive errno value. */ | |
761 | int | |
762 | ofproto_set_mcast_snooping(struct ofproto *ofproto, | |
763 | const struct ofproto_mcast_snooping_settings *s) | |
764 | { | |
765 | return (ofproto->ofproto_class->set_mcast_snooping | |
766 | ? ofproto->ofproto_class->set_mcast_snooping(ofproto, s) | |
767 | : EOPNOTSUPP); | |
768 | } | |
769 | ||
8e04a33f | 770 | /* Configures multicast snooping flood settings on 'ofp_port' of 'ofproto'. |
7c38d0a5 FL |
771 | * |
772 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
773 | int | |
8e04a33f FL |
774 | ofproto_port_set_mcast_snooping(struct ofproto *ofproto, void *aux, |
775 | const struct ofproto_mcast_snooping_port_settings *s) | |
7c38d0a5 FL |
776 | { |
777 | return (ofproto->ofproto_class->set_mcast_snooping_port | |
8e04a33f | 778 | ? ofproto->ofproto_class->set_mcast_snooping_port(ofproto, aux, s) |
7c38d0a5 FL |
779 | : EOPNOTSUPP); |
780 | } | |
781 | ||
f2eee189 AW |
782 | void |
783 | ofproto_set_n_dpdk_rxqs(int n_rxqs) | |
784 | { | |
785 | n_dpdk_rxqs = MAX(n_rxqs, 0); | |
786 | } | |
787 | ||
788 | void | |
789 | ofproto_set_cpu_mask(const char *cmask) | |
790 | { | |
791 | free(pmd_cpu_mask); | |
792 | ||
793 | pmd_cpu_mask = cmask ? xstrdup(cmask) : NULL; | |
794 | } | |
795 | ||
448a4b2f | 796 | void |
30ea0da7 | 797 | ofproto_set_threads(int n_handlers_, int n_revalidators_) |
448a4b2f | 798 | { |
e79a6c83 EJ |
799 | int threads = MAX(count_cpu_cores(), 2); |
800 | ||
30ea0da7 GS |
801 | n_revalidators = MAX(n_revalidators_, 0); |
802 | n_handlers = MAX(n_handlers_, 0); | |
e79a6c83 EJ |
803 | |
804 | if (!n_revalidators) { | |
805 | n_revalidators = n_handlers | |
806 | ? MAX(threads - (int) n_handlers, 1) | |
807 | : threads / 4 + 1; | |
808 | } | |
809 | ||
810 | if (!n_handlers) { | |
811 | n_handlers = MAX(threads - (int) n_revalidators, 1); | |
812 | } | |
448a4b2f AW |
813 | } |
814 | ||
8b6ff729 BP |
815 | void |
816 | ofproto_set_dp_desc(struct ofproto *p, const char *dp_desc) | |
817 | { | |
818 | free(p->dp_desc); | |
819 | p->dp_desc = dp_desc ? xstrdup(dp_desc) : NULL; | |
820 | } | |
821 | ||
064af421 | 822 | int |
81e2083f | 823 | ofproto_set_snoops(struct ofproto *ofproto, const struct sset *snoops) |
064af421 | 824 | { |
19a87e36 | 825 | return connmgr_set_snoops(ofproto->connmgr, snoops); |
064af421 BP |
826 | } |
827 | ||
828 | int | |
0193b2af JG |
829 | ofproto_set_netflow(struct ofproto *ofproto, |
830 | const struct netflow_options *nf_options) | |
064af421 | 831 | { |
abe529af BP |
832 | if (nf_options && sset_is_empty(&nf_options->collectors)) { |
833 | nf_options = NULL; | |
834 | } | |
835 | ||
836 | if (ofproto->ofproto_class->set_netflow) { | |
837 | return ofproto->ofproto_class->set_netflow(ofproto, nf_options); | |
064af421 | 838 | } else { |
abe529af | 839 | return nf_options ? EOPNOTSUPP : 0; |
064af421 BP |
840 | } |
841 | } | |
842 | ||
abe529af | 843 | int |
72b06300 BP |
844 | ofproto_set_sflow(struct ofproto *ofproto, |
845 | const struct ofproto_sflow_options *oso) | |
846 | { | |
abe529af BP |
847 | if (oso && sset_is_empty(&oso->targets)) { |
848 | oso = NULL; | |
849 | } | |
72b06300 | 850 | |
abe529af BP |
851 | if (ofproto->ofproto_class->set_sflow) { |
852 | return ofproto->ofproto_class->set_sflow(ofproto, oso); | |
72b06300 | 853 | } else { |
abe529af | 854 | return oso ? EOPNOTSUPP : 0; |
72b06300 BP |
855 | } |
856 | } | |
29089a54 RL |
857 | |
858 | int | |
859 | ofproto_set_ipfix(struct ofproto *ofproto, | |
860 | const struct ofproto_ipfix_bridge_exporter_options *bo, | |
861 | const struct ofproto_ipfix_flow_exporter_options *fo, | |
862 | size_t n_fo) | |
863 | { | |
864 | if (ofproto->ofproto_class->set_ipfix) { | |
865 | return ofproto->ofproto_class->set_ipfix(ofproto, bo, fo, n_fo); | |
866 | } else { | |
867 | return (bo || fo) ? EOPNOTSUPP : 0; | |
868 | } | |
869 | } | |
40358701 GS |
870 | |
871 | void | |
872 | ofproto_set_flow_restore_wait(bool flow_restore_wait_db) | |
873 | { | |
874 | flow_restore_wait = flow_restore_wait_db; | |
875 | } | |
876 | ||
877 | bool | |
878 | ofproto_get_flow_restore_wait(void) | |
879 | { | |
880 | return flow_restore_wait; | |
881 | } | |
882 | ||
e7934396 | 883 | \f |
21f7563c JP |
884 | /* Spanning Tree Protocol (STP) configuration. */ |
885 | ||
886 | /* Configures STP on 'ofproto' using the settings defined in 's'. If | |
887 | * 's' is NULL, disables STP. | |
888 | * | |
889 | * Returns 0 if successful, otherwise a positive errno value. */ | |
890 | int | |
891 | ofproto_set_stp(struct ofproto *ofproto, | |
892 | const struct ofproto_stp_settings *s) | |
893 | { | |
894 | return (ofproto->ofproto_class->set_stp | |
895 | ? ofproto->ofproto_class->set_stp(ofproto, s) | |
896 | : EOPNOTSUPP); | |
897 | } | |
898 | ||
899 | /* Retrieves STP status of 'ofproto' and stores it in 's'. If the | |
900 | * 'enabled' member of 's' is false, then the other members are not | |
901 | * meaningful. | |
902 | * | |
903 | * Returns 0 if successful, otherwise a positive errno value. */ | |
904 | int | |
905 | ofproto_get_stp_status(struct ofproto *ofproto, | |
906 | struct ofproto_stp_status *s) | |
907 | { | |
908 | return (ofproto->ofproto_class->get_stp_status | |
909 | ? ofproto->ofproto_class->get_stp_status(ofproto, s) | |
910 | : EOPNOTSUPP); | |
911 | } | |
912 | ||
913 | /* Configures STP on 'ofp_port' of 'ofproto' using the settings defined | |
914 | * in 's'. The caller is responsible for assigning STP port numbers | |
915 | * (using the 'port_num' member in the range of 1 through 255, inclusive) | |
916 | * and ensuring there are no duplicates. If the 's' is NULL, then STP | |
917 | * is disabled on the port. | |
918 | * | |
919 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
920 | int | |
4e022ec0 | 921 | ofproto_port_set_stp(struct ofproto *ofproto, ofp_port_t ofp_port, |
21f7563c JP |
922 | const struct ofproto_port_stp_settings *s) |
923 | { | |
924 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
925 | if (!ofport) { | |
926 | VLOG_WARN("%s: cannot configure STP on nonexistent port %"PRIu16, | |
927 | ofproto->name, ofp_port); | |
928 | return ENODEV; | |
929 | } | |
930 | ||
931 | return (ofproto->ofproto_class->set_stp_port | |
932 | ? ofproto->ofproto_class->set_stp_port(ofport, s) | |
933 | : EOPNOTSUPP); | |
934 | } | |
935 | ||
936 | /* Retrieves STP port status of 'ofp_port' on 'ofproto' and stores it in | |
937 | * 's'. If the 'enabled' member in 's' is false, then the other members | |
938 | * are not meaningful. | |
939 | * | |
940 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
941 | int | |
4e022ec0 | 942 | ofproto_port_get_stp_status(struct ofproto *ofproto, ofp_port_t ofp_port, |
21f7563c JP |
943 | struct ofproto_port_stp_status *s) |
944 | { | |
945 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
946 | if (!ofport) { | |
b0a5c43b JP |
947 | VLOG_WARN_RL(&rl, "%s: cannot get STP status on nonexistent " |
948 | "port %"PRIu16, ofproto->name, ofp_port); | |
21f7563c JP |
949 | return ENODEV; |
950 | } | |
951 | ||
952 | return (ofproto->ofproto_class->get_stp_port_status | |
953 | ? ofproto->ofproto_class->get_stp_port_status(ofport, s) | |
954 | : EOPNOTSUPP); | |
955 | } | |
fd28ce3a JS |
956 | |
957 | /* Retrieves STP port statistics of 'ofp_port' on 'ofproto' and stores it in | |
958 | * 's'. If the 'enabled' member in 's' is false, then the other members | |
959 | * are not meaningful. | |
960 | * | |
961 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
962 | int | |
963 | ofproto_port_get_stp_stats(struct ofproto *ofproto, ofp_port_t ofp_port, | |
964 | struct ofproto_port_stp_stats *s) | |
965 | { | |
966 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
967 | if (!ofport) { | |
968 | VLOG_WARN_RL(&rl, "%s: cannot get STP stats on nonexistent " | |
969 | "port %"PRIu16, ofproto->name, ofp_port); | |
970 | return ENODEV; | |
971 | } | |
972 | ||
973 | return (ofproto->ofproto_class->get_stp_port_stats | |
974 | ? ofproto->ofproto_class->get_stp_port_stats(ofport, s) | |
975 | : EOPNOTSUPP); | |
976 | } | |
9efd308e DV |
977 | |
978 | /* Rapid Spanning Tree Protocol (RSTP) configuration. */ | |
979 | ||
980 | /* Configures RSTP on 'ofproto' using the settings defined in 's'. If | |
981 | * 's' is NULL, disables RSTP. | |
982 | * | |
983 | * Returns 0 if successful, otherwise a positive errno value. */ | |
984 | int | |
985 | ofproto_set_rstp(struct ofproto *ofproto, | |
986 | const struct ofproto_rstp_settings *s) | |
987 | { | |
988 | if (!ofproto->ofproto_class->set_rstp) { | |
989 | return EOPNOTSUPP; | |
990 | } | |
991 | ofproto->ofproto_class->set_rstp(ofproto, s); | |
992 | return 0; | |
993 | } | |
994 | ||
995 | /* Retrieves RSTP status of 'ofproto' and stores it in 's'. If the | |
996 | * 'enabled' member of 's' is false, then the other members are not | |
997 | * meaningful. | |
998 | * | |
999 | * Returns 0 if successful, otherwise a positive errno value. */ | |
1000 | int | |
1001 | ofproto_get_rstp_status(struct ofproto *ofproto, | |
1002 | struct ofproto_rstp_status *s) | |
1003 | { | |
1004 | if (!ofproto->ofproto_class->get_rstp_status) { | |
1005 | return EOPNOTSUPP; | |
1006 | } | |
1007 | ofproto->ofproto_class->get_rstp_status(ofproto, s); | |
1008 | return 0; | |
1009 | } | |
1010 | ||
1011 | /* Configures RSTP on 'ofp_port' of 'ofproto' using the settings defined | |
1012 | * in 's'. The caller is responsible for assigning RSTP port numbers | |
1013 | * (using the 'port_num' member in the range of 1 through 255, inclusive) | |
1014 | * and ensuring there are no duplicates. If the 's' is NULL, then RSTP | |
1015 | * is disabled on the port. | |
1016 | * | |
1017 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
1018 | int | |
1019 | ofproto_port_set_rstp(struct ofproto *ofproto, ofp_port_t ofp_port, | |
1020 | const struct ofproto_port_rstp_settings *s) | |
1021 | { | |
1022 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1023 | if (!ofport) { | |
1024 | VLOG_WARN("%s: cannot configure RSTP on nonexistent port %"PRIu16, | |
1025 | ofproto->name, ofp_port); | |
1026 | return ENODEV; | |
1027 | } | |
1028 | ||
1029 | if (!ofproto->ofproto_class->set_rstp_port) { | |
1030 | return EOPNOTSUPP; | |
1031 | } | |
1032 | ofproto->ofproto_class->set_rstp_port(ofport, s); | |
1033 | return 0; | |
1034 | } | |
1035 | ||
1036 | /* Retrieves RSTP port status of 'ofp_port' on 'ofproto' and stores it in | |
1037 | * 's'. If the 'enabled' member in 's' is false, then the other members | |
1038 | * are not meaningful. | |
1039 | * | |
1040 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
1041 | int | |
1042 | ofproto_port_get_rstp_status(struct ofproto *ofproto, ofp_port_t ofp_port, | |
1043 | struct ofproto_port_rstp_status *s) | |
1044 | { | |
1045 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1046 | if (!ofport) { | |
1047 | VLOG_WARN_RL(&rl, "%s: cannot get RSTP status on nonexistent " | |
1048 | "port %"PRIu16, ofproto->name, ofp_port); | |
1049 | return ENODEV; | |
1050 | } | |
1051 | ||
1052 | if (!ofproto->ofproto_class->get_rstp_port_status) { | |
1053 | return EOPNOTSUPP; | |
1054 | } | |
1055 | ofproto->ofproto_class->get_rstp_port_status(ofport, s); | |
1056 | return 0; | |
1057 | } | |
21f7563c | 1058 | \f |
8b36f51e EJ |
1059 | /* Queue DSCP configuration. */ |
1060 | ||
1061 | /* Registers meta-data associated with the 'n_qdscp' Qualities of Service | |
1062 | * 'queues' attached to 'ofport'. This data is not intended to be sufficient | |
1063 | * to implement QoS. Instead, it is used to implement features which require | |
1064 | * knowledge of what queues exist on a port, and some basic information about | |
1065 | * them. | |
1066 | * | |
1067 | * Returns 0 if successful, otherwise a positive errno value. */ | |
1068 | int | |
4e022ec0 | 1069 | ofproto_port_set_queues(struct ofproto *ofproto, ofp_port_t ofp_port, |
8b36f51e EJ |
1070 | const struct ofproto_port_queue *queues, |
1071 | size_t n_queues) | |
1072 | { | |
1073 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1074 | ||
1075 | if (!ofport) { | |
1076 | VLOG_WARN("%s: cannot set queues on nonexistent port %"PRIu16, | |
1077 | ofproto->name, ofp_port); | |
1078 | return ENODEV; | |
1079 | } | |
1080 | ||
1081 | return (ofproto->ofproto_class->set_queues | |
1082 | ? ofproto->ofproto_class->set_queues(ofport, queues, n_queues) | |
1083 | : EOPNOTSUPP); | |
1084 | } | |
1085 | \f | |
0477baa9 DF |
1086 | /* LLDP configuration. */ |
1087 | void | |
1088 | ofproto_port_set_lldp(struct ofproto *ofproto, | |
1089 | ofp_port_t ofp_port, | |
1090 | const struct smap *cfg) | |
1091 | { | |
1092 | struct ofport *ofport; | |
1093 | int error; | |
1094 | ||
1095 | ofport = ofproto_get_port(ofproto, ofp_port); | |
1096 | if (!ofport) { | |
1097 | VLOG_WARN("%s: cannot configure LLDP on nonexistent port %"PRIu16, | |
1098 | ofproto->name, ofp_port); | |
1099 | return; | |
1100 | } | |
1101 | error = (ofproto->ofproto_class->set_lldp | |
1102 | ? ofproto->ofproto_class->set_lldp(ofport, cfg) | |
1103 | : EOPNOTSUPP); | |
1104 | if (error) { | |
1105 | VLOG_WARN("%s: lldp configuration on port %"PRIu16" (%s) failed (%s)", | |
1106 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), | |
1107 | ovs_strerror(error)); | |
1108 | } | |
1109 | } | |
1110 | ||
1111 | int | |
1112 | ofproto_set_aa(struct ofproto *ofproto, void *aux OVS_UNUSED, | |
1113 | const struct aa_settings *s) | |
1114 | { | |
1115 | if (!ofproto->ofproto_class->set_aa) { | |
1116 | return EOPNOTSUPP; | |
1117 | } | |
1118 | ofproto->ofproto_class->set_aa(ofproto, s); | |
1119 | return 0; | |
1120 | } | |
1121 | ||
1122 | int | |
1123 | ofproto_aa_mapping_register(struct ofproto *ofproto, void *aux, | |
1124 | const struct aa_mapping_settings *s) | |
1125 | { | |
1126 | if (!ofproto->ofproto_class->aa_mapping_set) { | |
1127 | return EOPNOTSUPP; | |
1128 | } | |
1129 | ofproto->ofproto_class->aa_mapping_set(ofproto, aux, s); | |
1130 | return 0; | |
1131 | } | |
1132 | ||
1133 | int | |
1134 | ofproto_aa_mapping_unregister(struct ofproto *ofproto, void *aux) | |
1135 | { | |
1136 | if (!ofproto->ofproto_class->aa_mapping_unset) { | |
1137 | return EOPNOTSUPP; | |
1138 | } | |
1139 | ofproto->ofproto_class->aa_mapping_unset(ofproto, aux); | |
1140 | return 0; | |
1141 | } | |
1142 | ||
1143 | int | |
1144 | ofproto_aa_vlan_get_queued(struct ofproto *ofproto, | |
1145 | struct ovs_list *list) | |
1146 | { | |
1147 | if (!ofproto->ofproto_class->aa_vlan_get_queued) { | |
1148 | return EOPNOTSUPP; | |
1149 | } | |
1150 | ofproto->ofproto_class->aa_vlan_get_queued(ofproto, list); | |
1151 | return 0; | |
1152 | } | |
1153 | ||
1154 | unsigned int | |
1155 | ofproto_aa_vlan_get_queue_size(struct ofproto *ofproto) | |
1156 | { | |
1157 | if (!ofproto->ofproto_class->aa_vlan_get_queue_size) { | |
1158 | return EOPNOTSUPP; | |
1159 | } | |
1160 | return ofproto->ofproto_class->aa_vlan_get_queue_size(ofproto); | |
1161 | } | |
1162 | ||
e7934396 BP |
1163 | /* Connectivity Fault Management configuration. */ |
1164 | ||
892815f5 | 1165 | /* Clears the CFM configuration from 'ofp_port' on 'ofproto'. */ |
e7934396 | 1166 | void |
4e022ec0 | 1167 | ofproto_port_clear_cfm(struct ofproto *ofproto, ofp_port_t ofp_port) |
e7934396 | 1168 | { |
abe529af BP |
1169 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1170 | if (ofport && ofproto->ofproto_class->set_cfm) { | |
a5610457 | 1171 | ofproto->ofproto_class->set_cfm(ofport, NULL); |
e7934396 BP |
1172 | } |
1173 | } | |
72b06300 | 1174 | |
892815f5 | 1175 | /* Configures connectivity fault management on 'ofp_port' in 'ofproto'. Takes |
93b8df38 EJ |
1176 | * basic configuration from the configuration members in 'cfm', and the remote |
1177 | * maintenance point ID from remote_mpid. Ignores the statistics members of | |
1178 | * 'cfm'. | |
e7934396 | 1179 | * |
892815f5 | 1180 | * This function has no effect if 'ofproto' does not have a port 'ofp_port'. */ |
e7934396 | 1181 | void |
4e022ec0 | 1182 | ofproto_port_set_cfm(struct ofproto *ofproto, ofp_port_t ofp_port, |
a5610457 | 1183 | const struct cfm_settings *s) |
e7934396 BP |
1184 | { |
1185 | struct ofport *ofport; | |
abe529af | 1186 | int error; |
e7934396 | 1187 | |
abe529af | 1188 | ofport = ofproto_get_port(ofproto, ofp_port); |
e7934396 | 1189 | if (!ofport) { |
892815f5 BP |
1190 | VLOG_WARN("%s: cannot configure CFM on nonexistent port %"PRIu16, |
1191 | ofproto->name, ofp_port); | |
e7934396 BP |
1192 | return; |
1193 | } | |
1194 | ||
93b8df38 EJ |
1195 | /* XXX: For configuration simplicity, we only support one remote_mpid |
1196 | * outside of the CFM module. It's not clear if this is the correct long | |
1197 | * term solution or not. */ | |
abe529af | 1198 | error = (ofproto->ofproto_class->set_cfm |
a5610457 | 1199 | ? ofproto->ofproto_class->set_cfm(ofport, s) |
abe529af BP |
1200 | : EOPNOTSUPP); |
1201 | if (error) { | |
1202 | VLOG_WARN("%s: CFM configuration on port %"PRIu16" (%s) failed (%s)", | |
1203 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), | |
10a89ef0 | 1204 | ovs_strerror(error)); |
e7934396 | 1205 | } |
e7934396 | 1206 | } |
e7934396 | 1207 | |
ccc09689 EJ |
1208 | /* Configures BFD on 'ofp_port' in 'ofproto'. This function has no effect if |
1209 | * 'ofproto' does not have a port 'ofp_port'. */ | |
1210 | void | |
4e022ec0 | 1211 | ofproto_port_set_bfd(struct ofproto *ofproto, ofp_port_t ofp_port, |
ccc09689 EJ |
1212 | const struct smap *cfg) |
1213 | { | |
1214 | struct ofport *ofport; | |
1215 | int error; | |
1216 | ||
1217 | ofport = ofproto_get_port(ofproto, ofp_port); | |
1218 | if (!ofport) { | |
1219 | VLOG_WARN("%s: cannot configure bfd on nonexistent port %"PRIu16, | |
1220 | ofproto->name, ofp_port); | |
e8999bdc | 1221 | return; |
ccc09689 EJ |
1222 | } |
1223 | ||
1224 | error = (ofproto->ofproto_class->set_bfd | |
1225 | ? ofproto->ofproto_class->set_bfd(ofport, cfg) | |
1226 | : EOPNOTSUPP); | |
1227 | if (error) { | |
1228 | VLOG_WARN("%s: bfd configuration on port %"PRIu16" (%s) failed (%s)", | |
1229 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), | |
10a89ef0 | 1230 | ovs_strerror(error)); |
ccc09689 EJ |
1231 | } |
1232 | } | |
1233 | ||
8f5514fe AW |
1234 | /* Checks the status change of BFD on 'ofport'. |
1235 | * | |
1236 | * Returns true if 'ofproto_class' does not support 'bfd_status_changed'. */ | |
1237 | bool | |
1238 | ofproto_port_bfd_status_changed(struct ofproto *ofproto, ofp_port_t ofp_port) | |
1239 | { | |
1240 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1241 | return (ofport && ofproto->ofproto_class->bfd_status_changed | |
1242 | ? ofproto->ofproto_class->bfd_status_changed(ofport) | |
1243 | : true); | |
1244 | } | |
1245 | ||
88bf179a | 1246 | /* Populates 'status' with the status of BFD on 'ofport'. Returns 0 on |
8f5514fe AW |
1247 | * success. Returns a positive errno otherwise. Has no effect if 'ofp_port' |
1248 | * is not an OpenFlow port in 'ofproto'. | |
88bf179a AW |
1249 | * |
1250 | * The caller must provide and own '*status'. */ | |
ccc09689 | 1251 | int |
4e022ec0 | 1252 | ofproto_port_get_bfd_status(struct ofproto *ofproto, ofp_port_t ofp_port, |
ccc09689 EJ |
1253 | struct smap *status) |
1254 | { | |
1255 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1256 | return (ofport && ofproto->ofproto_class->get_bfd_status | |
1257 | ? ofproto->ofproto_class->get_bfd_status(ofport, status) | |
1258 | : EOPNOTSUPP); | |
1259 | } | |
1260 | ||
fa066f01 BP |
1261 | /* Checks the status of LACP negotiation for 'ofp_port' within ofproto. |
1262 | * Returns 1 if LACP partner information for 'ofp_port' is up-to-date, | |
1263 | * 0 if LACP partner information is not current (generally indicating a | |
1264 | * connectivity problem), or -1 if LACP is not enabled on 'ofp_port'. */ | |
1265 | int | |
4e022ec0 | 1266 | ofproto_port_is_lacp_current(struct ofproto *ofproto, ofp_port_t ofp_port) |
fa066f01 | 1267 | { |
abe529af BP |
1268 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1269 | return (ofport && ofproto->ofproto_class->port_is_lacp_current | |
1270 | ? ofproto->ofproto_class->port_is_lacp_current(ofport) | |
fa066f01 | 1271 | : -1); |
e7934396 | 1272 | } |
50b9699f NM |
1273 | |
1274 | int | |
1275 | ofproto_port_get_lacp_stats(const struct ofport *port, struct lacp_slave_stats *stats) | |
1276 | { | |
1277 | struct ofproto *ofproto = port->ofproto; | |
1278 | int error; | |
1279 | ||
1280 | if (ofproto->ofproto_class->port_get_lacp_stats) { | |
1281 | error = ofproto->ofproto_class->port_get_lacp_stats(port, stats); | |
1282 | } else { | |
1283 | error = EOPNOTSUPP; | |
1284 | } | |
1285 | ||
1286 | return error; | |
1287 | } | |
e7934396 | 1288 | \f |
fa066f01 | 1289 | /* Bundles. */ |
e7934396 | 1290 | |
abe529af BP |
1291 | /* Registers a "bundle" associated with client data pointer 'aux' in 'ofproto'. |
1292 | * A bundle is the same concept as a Port in OVSDB, that is, it consists of one | |
1293 | * or more "slave" devices (Interfaces, in OVSDB) along with a VLAN | |
1294 | * configuration plus, if there is more than one slave, a bonding | |
1295 | * configuration. | |
1296 | * | |
1297 | * If 'aux' is already registered then this function updates its configuration | |
1298 | * to 's'. Otherwise, this function registers a new bundle. | |
1299 | * | |
1300 | * Bundles only affect the NXAST_AUTOPATH action and output to the OFPP_NORMAL | |
1301 | * port. */ | |
1302 | int | |
1303 | ofproto_bundle_register(struct ofproto *ofproto, void *aux, | |
1304 | const struct ofproto_bundle_settings *s) | |
fa066f01 | 1305 | { |
abe529af BP |
1306 | return (ofproto->ofproto_class->bundle_set |
1307 | ? ofproto->ofproto_class->bundle_set(ofproto, aux, s) | |
1308 | : EOPNOTSUPP); | |
fa066f01 BP |
1309 | } |
1310 | ||
abe529af BP |
1311 | /* Unregisters the bundle registered on 'ofproto' with auxiliary data 'aux'. |
1312 | * If no such bundle has been registered, this has no effect. */ | |
1313 | int | |
1314 | ofproto_bundle_unregister(struct ofproto *ofproto, void *aux) | |
e7934396 | 1315 | { |
abe529af | 1316 | return ofproto_bundle_register(ofproto, aux, NULL); |
e7934396 | 1317 | } |
fa066f01 | 1318 | |
e7934396 | 1319 | \f |
abe529af BP |
1320 | /* Registers a mirror associated with client data pointer 'aux' in 'ofproto'. |
1321 | * If 'aux' is already registered then this function updates its configuration | |
c06bba01 | 1322 | * to 's'. Otherwise, this function registers a new mirror. */ |
abe529af BP |
1323 | int |
1324 | ofproto_mirror_register(struct ofproto *ofproto, void *aux, | |
1325 | const struct ofproto_mirror_settings *s) | |
064af421 | 1326 | { |
abe529af BP |
1327 | return (ofproto->ofproto_class->mirror_set |
1328 | ? ofproto->ofproto_class->mirror_set(ofproto, aux, s) | |
1329 | : EOPNOTSUPP); | |
064af421 BP |
1330 | } |
1331 | ||
abe529af BP |
1332 | /* Unregisters the mirror registered on 'ofproto' with auxiliary data 'aux'. |
1333 | * If no mirror has been registered, this has no effect. */ | |
1334 | int | |
1335 | ofproto_mirror_unregister(struct ofproto *ofproto, void *aux) | |
064af421 | 1336 | { |
abe529af | 1337 | return ofproto_mirror_register(ofproto, aux, NULL); |
064af421 BP |
1338 | } |
1339 | ||
9d24de3b JP |
1340 | /* Retrieves statistics from mirror associated with client data pointer |
1341 | * 'aux' in 'ofproto'. Stores packet and byte counts in 'packets' and | |
1342 | * 'bytes', respectively. If a particular counters is not supported, | |
0477baa9 DF |
1343 | * the appropriate argument is set to UINT64_MAX. |
1344 | */ | |
9d24de3b JP |
1345 | int |
1346 | ofproto_mirror_get_stats(struct ofproto *ofproto, void *aux, | |
1347 | uint64_t *packets, uint64_t *bytes) | |
1348 | { | |
1349 | if (!ofproto->ofproto_class->mirror_get_stats) { | |
1350 | *packets = *bytes = UINT64_MAX; | |
1351 | return EOPNOTSUPP; | |
1352 | } | |
1353 | ||
1354 | return ofproto->ofproto_class->mirror_get_stats(ofproto, aux, | |
1355 | packets, bytes); | |
1356 | } | |
1357 | ||
abe529af BP |
1358 | /* Configures the VLANs whose bits are set to 1 in 'flood_vlans' as VLANs on |
1359 | * which all packets are flooded, instead of using MAC learning. If | |
1360 | * 'flood_vlans' is NULL, then MAC learning applies to all VLANs. | |
1361 | * | |
1362 | * Flood VLANs affect only the treatment of packets output to the OFPP_NORMAL | |
1363 | * port. */ | |
1364 | int | |
1365 | ofproto_set_flood_vlans(struct ofproto *ofproto, unsigned long *flood_vlans) | |
abdfe474 | 1366 | { |
abe529af BP |
1367 | return (ofproto->ofproto_class->set_flood_vlans |
1368 | ? ofproto->ofproto_class->set_flood_vlans(ofproto, flood_vlans) | |
1369 | : EOPNOTSUPP); | |
abdfe474 JP |
1370 | } |
1371 | ||
abe529af BP |
1372 | /* Returns true if 'aux' is a registered bundle that is currently in use as the |
1373 | * output for a mirror. */ | |
1374 | bool | |
b4affc74 | 1375 | ofproto_is_mirror_output_bundle(const struct ofproto *ofproto, void *aux) |
abe529af BP |
1376 | { |
1377 | return (ofproto->ofproto_class->is_mirror_output_bundle | |
1378 | ? ofproto->ofproto_class->is_mirror_output_bundle(ofproto, aux) | |
1379 | : false); | |
1380 | } | |
1381 | \f | |
254750ce BP |
1382 | /* Configuration of OpenFlow tables. */ |
1383 | ||
1384 | /* Returns the number of OpenFlow tables in 'ofproto'. */ | |
1385 | int | |
1386 | ofproto_get_n_tables(const struct ofproto *ofproto) | |
1387 | { | |
1388 | return ofproto->n_tables; | |
1389 | } | |
1390 | ||
adcf00ba AZ |
1391 | /* Returns the number of Controller visible OpenFlow tables |
1392 | * in 'ofproto'. This number will exclude Hidden tables. | |
1393 | * This funtion's return value should be less or equal to that of | |
1394 | * ofproto_get_n_tables() . */ | |
1395 | uint8_t | |
1396 | ofproto_get_n_visible_tables(const struct ofproto *ofproto) | |
1397 | { | |
1398 | uint8_t n = ofproto->n_tables; | |
1399 | ||
1400 | /* Count only non-hidden tables in the number of tables. (Hidden tables, | |
1401 | * if present, are always at the end.) */ | |
1402 | while(n && (ofproto->tables[n - 1].flags & OFTABLE_HIDDEN)) { | |
1403 | n--; | |
1404 | } | |
1405 | ||
1406 | return n; | |
1407 | } | |
1408 | ||
254750ce BP |
1409 | /* Configures the OpenFlow table in 'ofproto' with id 'table_id' with the |
1410 | * settings from 's'. 'table_id' must be in the range 0 through the number of | |
1411 | * OpenFlow tables in 'ofproto' minus 1, inclusive. | |
1412 | * | |
1413 | * For read-only tables, only the name may be configured. */ | |
1414 | void | |
1415 | ofproto_configure_table(struct ofproto *ofproto, int table_id, | |
1416 | const struct ofproto_table_settings *s) | |
1417 | { | |
1418 | struct oftable *table; | |
1419 | ||
cb22974d | 1420 | ovs_assert(table_id >= 0 && table_id < ofproto->n_tables); |
254750ce BP |
1421 | table = &ofproto->tables[table_id]; |
1422 | ||
1423 | oftable_set_name(table, s->name); | |
1424 | ||
1425 | if (table->flags & OFTABLE_READONLY) { | |
1426 | return; | |
1427 | } | |
1428 | ||
f358a2cb JR |
1429 | if (classifier_set_prefix_fields(&table->cls, |
1430 | s->prefix_fields, s->n_prefix_fields)) { | |
1431 | /* XXX: Trigger revalidation. */ | |
1432 | } | |
834fe5cb BP |
1433 | |
1434 | ovs_mutex_lock(&ofproto_mutex); | |
82c22d34 BP |
1435 | unsigned int new_eviction = (s->enable_eviction |
1436 | ? table->eviction | EVICTION_CLIENT | |
1437 | : table->eviction & ~EVICTION_CLIENT); | |
1438 | oftable_configure_eviction(table, new_eviction, s->groups, s->n_groups); | |
7394b8fb | 1439 | table->max_flows = s->max_flows; |
6787a49f | 1440 | evict_rules_from_table(table); |
834fe5cb | 1441 | ovs_mutex_unlock(&ofproto_mutex); |
254750ce BP |
1442 | } |
1443 | \f | |
81e2083f BP |
1444 | bool |
1445 | ofproto_has_snoops(const struct ofproto *ofproto) | |
1446 | { | |
1447 | return connmgr_has_snoops(ofproto->connmgr); | |
1448 | } | |
1449 | ||
064af421 | 1450 | void |
81e2083f | 1451 | ofproto_get_snoops(const struct ofproto *ofproto, struct sset *snoops) |
064af421 | 1452 | { |
19a87e36 | 1453 | connmgr_get_snoops(ofproto->connmgr, snoops); |
064af421 BP |
1454 | } |
1455 | ||
a73fcd71 | 1456 | /* Deletes 'rule' from 'ofproto'. |
8037acb4 | 1457 | * |
b74cb5d8 BP |
1458 | * Within an ofproto implementation, this function allows an ofproto |
1459 | * implementation to destroy any rules that remain when its ->destruct() | |
1460 | * function is called. This function is not suitable for use elsewhere in an | |
1461 | * ofproto implementation. | |
1462 | * | |
b74cb5d8 | 1463 | * This function implements steps 4.4 and 4.5 in the section titled "Rule Life |
8b81d1ef | 1464 | * Cycle" in ofproto-provider.h. */ |
b74cb5d8 | 1465 | void |
8b81d1ef | 1466 | ofproto_rule_delete(struct ofproto *ofproto, struct rule *rule) |
15aaf599 | 1467 | OVS_EXCLUDED(ofproto_mutex) |
7ee20df1 | 1468 | { |
834fe5cb BP |
1469 | /* This skips the ofmonitor and flow-removed notifications because the |
1470 | * switch is being deleted and any OpenFlow channels have been or soon will | |
1471 | * be killed. */ | |
15aaf599 | 1472 | ovs_mutex_lock(&ofproto_mutex); |
39c94593 JR |
1473 | |
1474 | if (!rule->removed) { | |
1475 | /* Make sure there is no postponed removal of the rule. */ | |
1476 | ovs_assert(cls_rule_visible_in_version(&rule->cr, CLS_MAX_VERSION)); | |
1477 | ||
1478 | if (!classifier_remove(&rule->ofproto->tables[rule->table_id].cls, | |
1479 | &rule->cr)) { | |
1480 | OVS_NOT_REACHED(); | |
1481 | } | |
1482 | ofproto_rule_remove__(rule->ofproto, rule); | |
1483 | ofproto->ofproto_class->rule_delete(rule); | |
1484 | ofproto_rule_unref(rule); | |
1485 | } | |
15aaf599 | 1486 | ovs_mutex_unlock(&ofproto_mutex); |
8037acb4 BP |
1487 | } |
1488 | ||
1489 | static void | |
1490 | ofproto_flush__(struct ofproto *ofproto) | |
15aaf599 | 1491 | OVS_EXCLUDED(ofproto_mutex) |
8037acb4 | 1492 | { |
d0918789 | 1493 | struct oftable *table; |
7ee20df1 | 1494 | |
3948503a | 1495 | /* This will flush all datapath flows. */ |
7ee20df1 BP |
1496 | if (ofproto->ofproto_class->flush) { |
1497 | ofproto->ofproto_class->flush(ofproto); | |
1498 | } | |
1499 | ||
3948503a JR |
1500 | /* XXX: There is a small race window here, where new datapath flows can be |
1501 | * created by upcall handlers based on the existing flow table. We can not | |
1502 | * call ofproto class flush while holding 'ofproto_mutex' to prevent this, | |
1503 | * as then we could deadlock on syncing with the handler threads waiting on | |
1504 | * the same mutex. */ | |
1505 | ||
15aaf599 | 1506 | ovs_mutex_lock(&ofproto_mutex); |
b772ded8 | 1507 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
802f84ff | 1508 | struct rule_collection rules; |
78c8df12 | 1509 | struct rule *rule; |
7ee20df1 | 1510 | |
5c67e4af BP |
1511 | if (table->flags & OFTABLE_HIDDEN) { |
1512 | continue; | |
1513 | } | |
1514 | ||
802f84ff JR |
1515 | rule_collection_init(&rules); |
1516 | ||
de4ad4a2 | 1517 | CLS_FOR_EACH (rule, cr, &table->cls) { |
802f84ff | 1518 | rule_collection_add(&rules, rule); |
7ee20df1 | 1519 | } |
802f84ff | 1520 | delete_flows__(&rules, OFPRR_DELETE, NULL); |
7ee20df1 | 1521 | } |
3948503a JR |
1522 | /* XXX: Concurrent handler threads may insert new learned flows based on |
1523 | * learn actions of the now deleted flows right after we release | |
1524 | * 'ofproto_mutex'. */ | |
15aaf599 | 1525 | ovs_mutex_unlock(&ofproto_mutex); |
7ee20df1 BP |
1526 | } |
1527 | ||
7395c052 NZ |
1528 | static void delete_group(struct ofproto *ofproto, uint32_t group_id); |
1529 | ||
abe529af BP |
1530 | static void |
1531 | ofproto_destroy__(struct ofproto *ofproto) | |
15aaf599 | 1532 | OVS_EXCLUDED(ofproto_mutex) |
abe529af | 1533 | { |
d0918789 | 1534 | struct oftable *table; |
6c1491fb | 1535 | |
35412852 | 1536 | destroy_rule_executes(ofproto); |
5c09b672 GS |
1537 | |
1538 | guarded_list_destroy(&ofproto->rule_executes); | |
7395c052 NZ |
1539 | ovs_rwlock_destroy(&ofproto->groups_rwlock); |
1540 | hmap_destroy(&ofproto->groups); | |
1541 | ||
abe529af BP |
1542 | hmap_remove(&all_ofprotos, &ofproto->hmap_node); |
1543 | free(ofproto->name); | |
955a7127 | 1544 | free(ofproto->type); |
abe529af BP |
1545 | free(ofproto->mfr_desc); |
1546 | free(ofproto->hw_desc); | |
1547 | free(ofproto->sw_desc); | |
1548 | free(ofproto->serial_desc); | |
1549 | free(ofproto->dp_desc); | |
abe529af | 1550 | hmap_destroy(&ofproto->ports); |
fdcea803 | 1551 | hmap_destroy(&ofproto->ofport_usage); |
abe529af | 1552 | shash_destroy(&ofproto->port_by_name); |
e1b1d06a | 1553 | simap_destroy(&ofproto->ofp_requests); |
6c1491fb | 1554 | |
b772ded8 | 1555 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
d0918789 | 1556 | oftable_destroy(table); |
6c1491fb BP |
1557 | } |
1558 | free(ofproto->tables); | |
fa066f01 | 1559 | |
1406c79b BP |
1560 | ovs_assert(hindex_is_empty(&ofproto->cookies)); |
1561 | hindex_destroy(&ofproto->cookies); | |
1562 | ||
35f48b8b BP |
1563 | ovs_assert(hmap_is_empty(&ofproto->learned_cookies)); |
1564 | hmap_destroy(&ofproto->learned_cookies); | |
1565 | ||
52a90c29 BP |
1566 | free(ofproto->vlan_bitmap); |
1567 | ||
abe529af BP |
1568 | ofproto->ofproto_class->dealloc(ofproto); |
1569 | } | |
fa066f01 | 1570 | |
39c94593 JR |
1571 | /* Destroying rules is doubly deferred, must have 'ofproto' around for them. |
1572 | * - 1st we defer the removal of the rules from the classifier | |
1573 | * - 2nd we defer the actual destruction of the rules. */ | |
1574 | static void | |
1575 | ofproto_destroy_defer__(struct ofproto *ofproto) | |
1576 | OVS_EXCLUDED(ofproto_mutex) | |
1577 | { | |
1578 | ovsrcu_postpone(ofproto_destroy__, ofproto); | |
1579 | } | |
1580 | ||
064af421 BP |
1581 | void |
1582 | ofproto_destroy(struct ofproto *p) | |
15aaf599 | 1583 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 1584 | { |
ca0f572c | 1585 | struct ofport *ofport, *next_ofport; |
fdcea803 | 1586 | struct ofport_usage *usage, *next_usage; |
064af421 BP |
1587 | |
1588 | if (!p) { | |
1589 | return; | |
1590 | } | |
1591 | ||
717de9ff JR |
1592 | if (p->meters) { |
1593 | meter_delete(p, 1, p->meter_features.max_meters); | |
1594 | p->meter_features.max_meters = 0; | |
1595 | free(p->meters); | |
1596 | p->meters = NULL; | |
1597 | } | |
1598 | ||
7ee20df1 | 1599 | ofproto_flush__(p); |
4e8e4213 | 1600 | HMAP_FOR_EACH_SAFE (ofport, next_ofport, hmap_node, &p->ports) { |
abe529af | 1601 | ofport_destroy(ofport); |
064af421 | 1602 | } |
064af421 | 1603 | |
fdcea803 GS |
1604 | HMAP_FOR_EACH_SAFE (usage, next_usage, hmap_node, &p->ofport_usage) { |
1605 | hmap_remove(&p->ofport_usage, &usage->hmap_node); | |
1606 | free(usage); | |
1607 | } | |
1608 | ||
abe529af | 1609 | p->ofproto_class->destruct(p); |
58f19539 DDP |
1610 | |
1611 | /* We should not postpone this because it involves deleting a listening | |
1612 | * socket which we may want to reopen soon. 'connmgr' should not be used | |
1613 | * by other threads */ | |
1614 | connmgr_destroy(p->connmgr); | |
1615 | ||
f416c8d6 | 1616 | /* Destroying rules is deferred, must have 'ofproto' around for them. */ |
39c94593 | 1617 | ovsrcu_postpone(ofproto_destroy_defer__, p); |
064af421 BP |
1618 | } |
1619 | ||
abe529af BP |
1620 | /* Destroys the datapath with the respective 'name' and 'type'. With the Linux |
1621 | * kernel datapath, for example, this destroys the datapath in the kernel, and | |
1622 | * with the netdev-based datapath, it tears down the data structures that | |
1623 | * represent the datapath. | |
1624 | * | |
1625 | * The datapath should not be currently open as an ofproto. */ | |
064af421 | 1626 | int |
abe529af | 1627 | ofproto_delete(const char *name, const char *type) |
064af421 | 1628 | { |
abe529af BP |
1629 | const struct ofproto_class *class = ofproto_class_find__(type); |
1630 | return (!class ? EAFNOSUPPORT | |
1631 | : !class->del ? EACCES | |
1632 | : class->del(type, name)); | |
064af421 BP |
1633 | } |
1634 | ||
e9e28be3 BP |
1635 | static void |
1636 | process_port_change(struct ofproto *ofproto, int error, char *devname) | |
1637 | { | |
1638 | if (error == ENOBUFS) { | |
1639 | reinit_ports(ofproto); | |
1640 | } else if (!error) { | |
1641 | update_port(ofproto, devname); | |
1642 | free(devname); | |
1643 | } | |
1644 | } | |
1645 | ||
11a574a7 JP |
1646 | int |
1647 | ofproto_type_run(const char *datapath_type) | |
1648 | { | |
1649 | const struct ofproto_class *class; | |
1650 | int error; | |
1651 | ||
1652 | datapath_type = ofproto_normalize_type(datapath_type); | |
1653 | class = ofproto_class_find__(datapath_type); | |
1654 | ||
1655 | error = class->type_run ? class->type_run(datapath_type) : 0; | |
1656 | if (error && error != EAGAIN) { | |
1657 | VLOG_ERR_RL(&rl, "%s: type_run failed (%s)", | |
10a89ef0 | 1658 | datapath_type, ovs_strerror(error)); |
11a574a7 JP |
1659 | } |
1660 | return error; | |
1661 | } | |
1662 | ||
11a574a7 JP |
1663 | void |
1664 | ofproto_type_wait(const char *datapath_type) | |
1665 | { | |
1666 | const struct ofproto_class *class; | |
1667 | ||
1668 | datapath_type = ofproto_normalize_type(datapath_type); | |
1669 | class = ofproto_class_find__(datapath_type); | |
1670 | ||
1671 | if (class->type_wait) { | |
1672 | class->type_wait(datapath_type); | |
1673 | } | |
1674 | } | |
1675 | ||
064af421 | 1676 | int |
abe529af | 1677 | ofproto_run(struct ofproto *p) |
064af421 | 1678 | { |
064af421 | 1679 | int error; |
da4a6191 | 1680 | uint64_t new_seq; |
064af421 | 1681 | |
abe529af | 1682 | error = p->ofproto_class->run(p); |
5fcc0d00 | 1683 | if (error && error != EAGAIN) { |
10a89ef0 | 1684 | VLOG_ERR_RL(&rl, "%s: run failed (%s)", p->name, ovs_strerror(error)); |
149f577a JG |
1685 | } |
1686 | ||
35412852 BP |
1687 | run_rule_executes(p); |
1688 | ||
448c2fa8 EJ |
1689 | /* Restore the eviction group heap invariant occasionally. */ |
1690 | if (p->eviction_group_timer < time_msec()) { | |
1691 | size_t i; | |
1692 | ||
1693 | p->eviction_group_timer = time_msec() + 1000; | |
1694 | ||
1695 | for (i = 0; i < p->n_tables; i++) { | |
1696 | struct oftable *table = &p->tables[i]; | |
1697 | struct eviction_group *evg; | |
448c2fa8 EJ |
1698 | struct rule *rule; |
1699 | ||
82c22d34 | 1700 | if (!table->eviction) { |
448c2fa8 EJ |
1701 | continue; |
1702 | } | |
1703 | ||
d79e3d70 | 1704 | if (table->n_flows > 100000) { |
1a9bb326 EJ |
1705 | static struct vlog_rate_limit count_rl = |
1706 | VLOG_RATE_LIMIT_INIT(1, 1); | |
1707 | VLOG_WARN_RL(&count_rl, "Table %"PRIuSIZE" has an excessive" | |
d79e3d70 | 1708 | " number of rules: %d", i, table->n_flows); |
1a9bb326 EJ |
1709 | } |
1710 | ||
15aaf599 | 1711 | ovs_mutex_lock(&ofproto_mutex); |
5f0476ce | 1712 | CLS_FOR_EACH (rule, cr, &table->cls) { |
6d56c1f1 K |
1713 | if (rule->idle_timeout || rule->hard_timeout) { |
1714 | if (!rule->eviction_group) { | |
1715 | eviction_group_add_rule(rule); | |
1716 | } else { | |
1717 | heap_raw_change(&rule->evg_node, | |
1718 | rule_eviction_priority(p, rule)); | |
1719 | } | |
448c2fa8 EJ |
1720 | } |
1721 | } | |
6d56c1f1 K |
1722 | |
1723 | HEAP_FOR_EACH (evg, size_node, &table->eviction_groups_by_size) { | |
1724 | heap_rebuild(&evg->rules); | |
1725 | } | |
15aaf599 | 1726 | ovs_mutex_unlock(&ofproto_mutex); |
448c2fa8 EJ |
1727 | } |
1728 | } | |
1729 | ||
5bf0e941 | 1730 | if (p->ofproto_class->port_poll) { |
7436ed80 BP |
1731 | char *devname; |
1732 | ||
5bf0e941 BP |
1733 | while ((error = p->ofproto_class->port_poll(p, &devname)) != EAGAIN) { |
1734 | process_port_change(p, error, devname); | |
064af421 | 1735 | } |
e9e28be3 | 1736 | } |
031d8bff | 1737 | |
da4a6191 JS |
1738 | new_seq = seq_read(connectivity_seq_get()); |
1739 | if (new_seq != p->change_seq) { | |
1740 | struct sset devnames; | |
1741 | const char *devname; | |
1742 | struct ofport *ofport; | |
1743 | ||
1744 | /* Update OpenFlow port status for any port whose netdev has changed. | |
1745 | * | |
1746 | * Refreshing a given 'ofport' can cause an arbitrary ofport to be | |
1747 | * destroyed, so it's not safe to update ports directly from the | |
1748 | * HMAP_FOR_EACH loop, or even to use HMAP_FOR_EACH_SAFE. Instead, we | |
1749 | * need this two-phase approach. */ | |
1750 | sset_init(&devnames); | |
1751 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
61501798 AW |
1752 | uint64_t port_change_seq; |
1753 | ||
1754 | port_change_seq = netdev_get_change_seq(ofport->netdev); | |
1755 | if (ofport->change_seq != port_change_seq) { | |
1756 | ofport->change_seq = port_change_seq; | |
1757 | sset_add(&devnames, netdev_get_name(ofport->netdev)); | |
1758 | } | |
031d8bff | 1759 | } |
da4a6191 JS |
1760 | SSET_FOR_EACH (devname, &devnames) { |
1761 | update_port(p, devname); | |
1762 | } | |
1763 | sset_destroy(&devnames); | |
1764 | ||
1765 | p->change_seq = new_seq; | |
064af421 BP |
1766 | } |
1767 | ||
834fe5cb | 1768 | connmgr_run(p->connmgr, handle_openflow); |
064af421 | 1769 | |
5fcc0d00 BP |
1770 | return error; |
1771 | } | |
1772 | ||
064af421 BP |
1773 | void |
1774 | ofproto_wait(struct ofproto *p) | |
1775 | { | |
abe529af | 1776 | p->ofproto_class->wait(p); |
5bf0e941 BP |
1777 | if (p->ofproto_class->port_poll_wait) { |
1778 | p->ofproto_class->port_poll_wait(p); | |
e7934396 | 1779 | } |
da4a6191 | 1780 | seq_wait(connectivity_seq_get(), p->change_seq); |
834fe5cb | 1781 | connmgr_wait(p->connmgr); |
064af421 BP |
1782 | } |
1783 | ||
064af421 BP |
1784 | bool |
1785 | ofproto_is_alive(const struct ofproto *p) | |
1786 | { | |
19a87e36 | 1787 | return connmgr_has_controllers(p->connmgr); |
064af421 BP |
1788 | } |
1789 | ||
0d085684 BP |
1790 | /* Adds some memory usage statistics for 'ofproto' into 'usage', for use with |
1791 | * memory_report(). */ | |
1792 | void | |
1793 | ofproto_get_memory_usage(const struct ofproto *ofproto, struct simap *usage) | |
1794 | { | |
1795 | const struct oftable *table; | |
1796 | unsigned int n_rules; | |
1797 | ||
1798 | simap_increase(usage, "ports", hmap_count(&ofproto->ports)); | |
15aaf599 | 1799 | |
0d085684 BP |
1800 | n_rules = 0; |
1801 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { | |
d79e3d70 | 1802 | n_rules += table->n_flows; |
0d085684 BP |
1803 | } |
1804 | simap_increase(usage, "rules", n_rules); | |
1805 | ||
1806 | if (ofproto->ofproto_class->get_memory_usage) { | |
1807 | ofproto->ofproto_class->get_memory_usage(ofproto, usage); | |
1808 | } | |
1809 | ||
1810 | connmgr_get_memory_usage(ofproto->connmgr, usage); | |
1811 | } | |
1812 | ||
1c030aa5 EJ |
1813 | void |
1814 | ofproto_type_get_memory_usage(const char *datapath_type, struct simap *usage) | |
1815 | { | |
1816 | const struct ofproto_class *class; | |
1817 | ||
1818 | datapath_type = ofproto_normalize_type(datapath_type); | |
1819 | class = ofproto_class_find__(datapath_type); | |
1820 | ||
1821 | if (class && class->type_get_memory_usage) { | |
1822 | class->type_get_memory_usage(datapath_type, usage); | |
1823 | } | |
1824 | } | |
1825 | ||
bffc0589 | 1826 | void |
2cdcb898 | 1827 | ofproto_get_ofproto_controller_info(const struct ofproto *ofproto, |
bffc0589 AE |
1828 | struct shash *info) |
1829 | { | |
19a87e36 | 1830 | connmgr_get_controller_info(ofproto->connmgr, info); |
bffc0589 AE |
1831 | } |
1832 | ||
1833 | void | |
1834 | ofproto_free_ofproto_controller_info(struct shash *info) | |
1835 | { | |
72ba2ed3 | 1836 | connmgr_free_controller_info(info); |
bffc0589 AE |
1837 | } |
1838 | ||
b5827b24 BP |
1839 | /* Makes a deep copy of 'old' into 'port'. */ |
1840 | void | |
1841 | ofproto_port_clone(struct ofproto_port *port, const struct ofproto_port *old) | |
1842 | { | |
1843 | port->name = xstrdup(old->name); | |
1844 | port->type = xstrdup(old->type); | |
1845 | port->ofp_port = old->ofp_port; | |
1846 | } | |
1847 | ||
1848 | /* Frees memory allocated to members of 'ofproto_port'. | |
3a6ccc8c | 1849 | * |
b5827b24 BP |
1850 | * Do not call this function on an ofproto_port obtained from |
1851 | * ofproto_port_dump_next(): that function retains ownership of the data in the | |
1852 | * ofproto_port. */ | |
1853 | void | |
1854 | ofproto_port_destroy(struct ofproto_port *ofproto_port) | |
1855 | { | |
1856 | free(ofproto_port->name); | |
1857 | free(ofproto_port->type); | |
1858 | } | |
1859 | ||
b5827b24 | 1860 | /* Initializes 'dump' to begin dumping the ports in an ofproto. |
3a6ccc8c | 1861 | * |
b5827b24 BP |
1862 | * This function provides no status indication. An error status for the entire |
1863 | * dump operation is provided when it is completed by calling | |
1864 | * ofproto_port_dump_done(). | |
1865 | */ | |
1866 | void | |
1867 | ofproto_port_dump_start(struct ofproto_port_dump *dump, | |
1868 | const struct ofproto *ofproto) | |
1869 | { | |
abe529af BP |
1870 | dump->ofproto = ofproto; |
1871 | dump->error = ofproto->ofproto_class->port_dump_start(ofproto, | |
1872 | &dump->state); | |
b5827b24 BP |
1873 | } |
1874 | ||
1875 | /* Attempts to retrieve another port from 'dump', which must have been created | |
1876 | * with ofproto_port_dump_start(). On success, stores a new ofproto_port into | |
1877 | * 'port' and returns true. On failure, returns false. | |
1878 | * | |
1879 | * Failure might indicate an actual error or merely that the last port has been | |
1880 | * dumped. An error status for the entire dump operation is provided when it | |
1881 | * is completed by calling ofproto_port_dump_done(). | |
1882 | * | |
1883 | * The ofproto owns the data stored in 'port'. It will remain valid until at | |
1884 | * least the next time 'dump' is passed to ofproto_port_dump_next() or | |
1885 | * ofproto_port_dump_done(). */ | |
1886 | bool | |
1887 | ofproto_port_dump_next(struct ofproto_port_dump *dump, | |
1888 | struct ofproto_port *port) | |
1889 | { | |
abe529af BP |
1890 | const struct ofproto *ofproto = dump->ofproto; |
1891 | ||
1892 | if (dump->error) { | |
1893 | return false; | |
1894 | } | |
b5827b24 | 1895 | |
abe529af BP |
1896 | dump->error = ofproto->ofproto_class->port_dump_next(ofproto, dump->state, |
1897 | port); | |
1898 | if (dump->error) { | |
1899 | ofproto->ofproto_class->port_dump_done(ofproto, dump->state); | |
1900 | return false; | |
b5827b24 | 1901 | } |
abe529af | 1902 | return true; |
b5827b24 BP |
1903 | } |
1904 | ||
1905 | /* Completes port table dump operation 'dump', which must have been created | |
1906 | * with ofproto_port_dump_start(). Returns 0 if the dump operation was | |
1907 | * error-free, otherwise a positive errno value describing the problem. */ | |
3a6ccc8c | 1908 | int |
b5827b24 | 1909 | ofproto_port_dump_done(struct ofproto_port_dump *dump) |
3a6ccc8c | 1910 | { |
abe529af BP |
1911 | const struct ofproto *ofproto = dump->ofproto; |
1912 | if (!dump->error) { | |
1913 | dump->error = ofproto->ofproto_class->port_dump_done(ofproto, | |
1914 | dump->state); | |
1915 | } | |
1916 | return dump->error == EOF ? 0 : dump->error; | |
b5827b24 BP |
1917 | } |
1918 | ||
0aeaabc8 JP |
1919 | /* Returns the type to pass to netdev_open() when a datapath of type |
1920 | * 'datapath_type' has a port of type 'port_type', for a few special | |
1921 | * cases when a netdev type differs from a port type. For example, when | |
1922 | * using the userspace datapath, a port of type "internal" needs to be | |
1923 | * opened as "tap". | |
1924 | * | |
1925 | * Returns either 'type' itself or a string literal, which must not be | |
1926 | * freed. */ | |
1927 | const char * | |
1928 | ofproto_port_open_type(const char *datapath_type, const char *port_type) | |
1929 | { | |
1930 | const struct ofproto_class *class; | |
1931 | ||
1932 | datapath_type = ofproto_normalize_type(datapath_type); | |
1933 | class = ofproto_class_find__(datapath_type); | |
1934 | if (!class) { | |
1935 | return port_type; | |
1936 | } | |
1937 | ||
1938 | return (class->port_open_type | |
1939 | ? class->port_open_type(datapath_type, port_type) | |
1940 | : port_type); | |
1941 | } | |
1942 | ||
81816a5f JP |
1943 | /* Attempts to add 'netdev' as a port on 'ofproto'. If 'ofp_portp' is |
1944 | * non-null and '*ofp_portp' is not OFPP_NONE, attempts to use that as | |
1945 | * the port's OpenFlow port number. | |
1946 | * | |
1947 | * If successful, returns 0 and sets '*ofp_portp' to the new port's | |
1948 | * OpenFlow port number (if 'ofp_portp' is non-null). On failure, | |
1949 | * returns a positive errno value and sets '*ofp_portp' to OFPP_NONE (if | |
1950 | * 'ofp_portp' is non-null). */ | |
b5827b24 BP |
1951 | int |
1952 | ofproto_port_add(struct ofproto *ofproto, struct netdev *netdev, | |
4e022ec0 | 1953 | ofp_port_t *ofp_portp) |
b5827b24 | 1954 | { |
4e022ec0 | 1955 | ofp_port_t ofp_port = ofp_portp ? *ofp_portp : OFPP_NONE; |
3a6ccc8c BP |
1956 | int error; |
1957 | ||
e1b1d06a | 1958 | error = ofproto->ofproto_class->port_add(ofproto, netdev); |
1fa24dea | 1959 | if (!error) { |
e1b1d06a JP |
1960 | const char *netdev_name = netdev_get_name(netdev); |
1961 | ||
4e022ec0 AW |
1962 | simap_put(&ofproto->ofp_requests, netdev_name, |
1963 | ofp_to_u16(ofp_port)); | |
e1b1d06a | 1964 | update_port(ofproto, netdev_name); |
1fa24dea | 1965 | } |
b5827b24 | 1966 | if (ofp_portp) { |
17f69db5 BP |
1967 | *ofp_portp = OFPP_NONE; |
1968 | if (!error) { | |
1969 | struct ofproto_port ofproto_port; | |
1970 | ||
1971 | error = ofproto_port_query_by_name(ofproto, | |
1972 | netdev_get_name(netdev), | |
1973 | &ofproto_port); | |
1974 | if (!error) { | |
1975 | *ofp_portp = ofproto_port.ofp_port; | |
1976 | ofproto_port_destroy(&ofproto_port); | |
1977 | } | |
1978 | } | |
3a6ccc8c BP |
1979 | } |
1980 | return error; | |
1981 | } | |
1982 | ||
b5827b24 BP |
1983 | /* Looks up a port named 'devname' in 'ofproto'. On success, returns 0 and |
1984 | * initializes '*port' appropriately; on failure, returns a positive errno | |
1985 | * value. | |
1986 | * | |
abe529af | 1987 | * The caller owns the data in 'ofproto_port' and must free it with |
b5827b24 BP |
1988 | * ofproto_port_destroy() when it is no longer needed. */ |
1989 | int | |
1990 | ofproto_port_query_by_name(const struct ofproto *ofproto, const char *devname, | |
1991 | struct ofproto_port *port) | |
a4e2e1f2 | 1992 | { |
b5827b24 BP |
1993 | int error; |
1994 | ||
abe529af BP |
1995 | error = ofproto->ofproto_class->port_query_by_name(ofproto, devname, port); |
1996 | if (error) { | |
1997 | memset(port, 0, sizeof *port); | |
b5827b24 BP |
1998 | } |
1999 | return error; | |
a4e2e1f2 EJ |
2000 | } |
2001 | ||
b5827b24 | 2002 | /* Deletes port number 'ofp_port' from the datapath for 'ofproto'. |
3a6ccc8c | 2003 | * Returns 0 if successful, otherwise a positive errno. */ |
064af421 | 2004 | int |
4e022ec0 | 2005 | ofproto_port_del(struct ofproto *ofproto, ofp_port_t ofp_port) |
064af421 | 2006 | { |
abe529af | 2007 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1264ec95 | 2008 | const char *name = ofport ? netdev_get_name(ofport->netdev) : "<unknown>"; |
e1b1d06a | 2009 | struct simap_node *ofp_request_node; |
3cf10406 | 2010 | int error; |
cdee00fd | 2011 | |
e1b1d06a JP |
2012 | ofp_request_node = simap_find(&ofproto->ofp_requests, name); |
2013 | if (ofp_request_node) { | |
2014 | simap_delete(&ofproto->ofp_requests, ofp_request_node); | |
2015 | } | |
2016 | ||
abe529af | 2017 | error = ofproto->ofproto_class->port_del(ofproto, ofp_port); |
892815f5 | 2018 | if (!error && ofport) { |
1264ec95 BP |
2019 | /* 'name' is the netdev's name and update_port() is going to close the |
2020 | * netdev. Just in case update_port() refers to 'name' after it | |
3a6ccc8c BP |
2021 | * destroys 'ofport', make a copy of it around the update_port() |
2022 | * call. */ | |
2023 | char *devname = xstrdup(name); | |
2024 | update_port(ofproto, devname); | |
2025 | free(devname); | |
3cf10406 BP |
2026 | } |
2027 | return error; | |
064af421 BP |
2028 | } |
2029 | ||
276f6518 SH |
2030 | static void |
2031 | flow_mod_init(struct ofputil_flow_mod *fm, | |
eb391b76 | 2032 | const struct match *match, int priority, |
276f6518 SH |
2033 | const struct ofpact *ofpacts, size_t ofpacts_len, |
2034 | enum ofp_flow_mod_command command) | |
2035 | { | |
2036 | memset(fm, 0, sizeof *fm); | |
2037 | fm->match = *match; | |
2038 | fm->priority = priority; | |
2039 | fm->cookie = 0; | |
2040 | fm->new_cookie = 0; | |
2041 | fm->modify_cookie = false; | |
2042 | fm->table_id = 0; | |
2043 | fm->command = command; | |
2044 | fm->idle_timeout = 0; | |
2045 | fm->hard_timeout = 0; | |
ca26eb44 | 2046 | fm->importance = 0; |
276f6518 SH |
2047 | fm->buffer_id = UINT32_MAX; |
2048 | fm->out_port = OFPP_ANY; | |
2049 | fm->out_group = OFPG_ANY; | |
2050 | fm->flags = 0; | |
2051 | fm->ofpacts = CONST_CAST(struct ofpact *, ofpacts); | |
2052 | fm->ofpacts_len = ofpacts_len; | |
cc40d06b | 2053 | fm->delete_reason = OFPRR_DELETE; |
276f6518 SH |
2054 | } |
2055 | ||
97f63e57 BP |
2056 | static int |
2057 | simple_flow_mod(struct ofproto *ofproto, | |
eb391b76 | 2058 | const struct match *match, int priority, |
97f63e57 BP |
2059 | const struct ofpact *ofpacts, size_t ofpacts_len, |
2060 | enum ofp_flow_mod_command command) | |
2061 | { | |
8be00367 | 2062 | struct ofproto_flow_mod ofm; |
97f63e57 | 2063 | |
8be00367 | 2064 | flow_mod_init(&ofm.fm, match, priority, ofpacts, ofpacts_len, command); |
15aaf599 | 2065 | |
8be00367 | 2066 | return handle_flow_mod__(ofproto, &ofm, NULL); |
97f63e57 BP |
2067 | } |
2068 | ||
6c1491fb | 2069 | /* Adds a flow to OpenFlow flow table 0 in 'p' that matches 'cls_rule' and |
fa8b054f BP |
2070 | * performs the 'n_actions' actions in 'actions'. The new flow will not |
2071 | * timeout. | |
2072 | * | |
2073 | * If cls_rule->priority is in the range of priorities supported by OpenFlow | |
2074 | * (0...65535, inclusive) then the flow will be visible to OpenFlow | |
2075 | * controllers; otherwise, it will be hidden. | |
2076 | * | |
f25d0cf3 | 2077 | * The caller retains ownership of 'cls_rule' and 'ofpacts'. |
6c1491fb BP |
2078 | * |
2079 | * This is a helper function for in-band control and fail-open. */ | |
064af421 | 2080 | void |
81a76618 | 2081 | ofproto_add_flow(struct ofproto *ofproto, const struct match *match, |
eb391b76 | 2082 | int priority, |
f25d0cf3 | 2083 | const struct ofpact *ofpacts, size_t ofpacts_len) |
15aaf599 | 2084 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 2085 | { |
7ee20df1 | 2086 | const struct rule *rule; |
6f00e29b | 2087 | bool must_add; |
7ee20df1 | 2088 | |
97f63e57 BP |
2089 | /* First do a cheap check whether the rule we're looking for already exists |
2090 | * with the actions that we want. If it does, then we're done. */ | |
81a76618 | 2091 | rule = rule_from_cls_rule(classifier_find_match_exactly( |
2b7b1427 JR |
2092 | &ofproto->tables[0].cls, match, priority, |
2093 | CLS_MAX_VERSION)); | |
6f00e29b | 2094 | if (rule) { |
dc723c44 | 2095 | const struct rule_actions *actions = rule_get_actions(rule); |
06a0f3e2 | 2096 | must_add = !ofpacts_equal(actions->ofpacts, actions->ofpacts_len, |
6f00e29b | 2097 | ofpacts, ofpacts_len); |
6f00e29b BP |
2098 | } else { |
2099 | must_add = true; | |
2100 | } | |
97f63e57 BP |
2101 | |
2102 | /* If there's no such rule or the rule doesn't have the actions we want, | |
2103 | * fall back to a executing a full flow mod. We can't optimize this at | |
2104 | * all because we didn't take enough locks above to ensure that the flow | |
2105 | * table didn't already change beneath us. */ | |
6f00e29b | 2106 | if (must_add) { |
97f63e57 BP |
2107 | simple_flow_mod(ofproto, match, priority, ofpacts, ofpacts_len, |
2108 | OFPFC_MODIFY_STRICT); | |
7ee20df1 | 2109 | } |
064af421 BP |
2110 | } |
2111 | ||
d51c8b71 JR |
2112 | /* Executes the flow modification specified in 'fm'. Returns 0 on success, or |
2113 | * an OFPERR_* OpenFlow error code on failure. | |
75a75043 | 2114 | * |
1b63b91e BP |
2115 | * This is a helper function for in-band control and fail-open and the "learn" |
2116 | * action. */ | |
d51c8b71 | 2117 | enum ofperr |
8be00367 | 2118 | ofproto_flow_mod(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
15aaf599 | 2119 | OVS_EXCLUDED(ofproto_mutex) |
75a75043 | 2120 | { |
8be00367 JR |
2121 | struct ofputil_flow_mod *fm = &ofm->fm; |
2122 | ||
b90d6ee5 JR |
2123 | /* Optimize for the most common case of a repeated learn action. |
2124 | * If an identical flow already exists we only need to update its | |
2125 | * 'modified' time. */ | |
2126 | if (fm->command == OFPFC_MODIFY_STRICT && fm->table_id != OFPTT_ALL | |
2127 | && !(fm->flags & OFPUTIL_FF_RESET_COUNTS)) { | |
2128 | struct oftable *table = &ofproto->tables[fm->table_id]; | |
b90d6ee5 JR |
2129 | struct rule *rule; |
2130 | bool done = false; | |
2131 | ||
2b7b1427 | 2132 | rule = rule_from_cls_rule(classifier_find_match_exactly( |
39c94593 JR |
2133 | &table->cls, &fm->match, fm->priority, |
2134 | CLS_MAX_VERSION)); | |
b90d6ee5 JR |
2135 | if (rule) { |
2136 | /* Reading many of the rule fields and writing on 'modified' | |
2137 | * requires the rule->mutex. Also, rule->actions may change | |
2138 | * if rule->mutex is not held. */ | |
06a0f3e2 BP |
2139 | const struct rule_actions *actions; |
2140 | ||
b90d6ee5 | 2141 | ovs_mutex_lock(&rule->mutex); |
06a0f3e2 | 2142 | actions = rule_get_actions(rule); |
b90d6ee5 JR |
2143 | if (rule->idle_timeout == fm->idle_timeout |
2144 | && rule->hard_timeout == fm->hard_timeout | |
ca26eb44 | 2145 | && rule->importance == fm->importance |
b90d6ee5 JR |
2146 | && rule->flags == (fm->flags & OFPUTIL_FF_STATE) |
2147 | && (!fm->modify_cookie || (fm->new_cookie == rule->flow_cookie)) | |
2148 | && ofpacts_equal(fm->ofpacts, fm->ofpacts_len, | |
06a0f3e2 | 2149 | actions->ofpacts, actions->ofpacts_len)) { |
b90d6ee5 JR |
2150 | /* Rule already exists and need not change, only update the |
2151 | modified timestamp. */ | |
2152 | rule->modified = time_msec(); | |
2153 | done = true; | |
2154 | } | |
2155 | ovs_mutex_unlock(&rule->mutex); | |
2156 | } | |
b90d6ee5 JR |
2157 | |
2158 | if (done) { | |
2159 | return 0; | |
2160 | } | |
2161 | } | |
2162 | ||
8be00367 | 2163 | return handle_flow_mod__(ofproto, ofm, NULL); |
75a75043 BP |
2164 | } |
2165 | ||
6c1491fb BP |
2166 | /* Searches for a rule with matching criteria exactly equal to 'target' in |
2167 | * ofproto's table 0 and, if it finds one, deletes it. | |
2168 | * | |
2169 | * This is a helper function for in-band control and fail-open. */ | |
b20f4073 | 2170 | void |
81a76618 | 2171 | ofproto_delete_flow(struct ofproto *ofproto, |
eb391b76 | 2172 | const struct match *target, int priority) |
15aaf599 | 2173 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 2174 | { |
8037acb4 | 2175 | struct classifier *cls = &ofproto->tables[0].cls; |
064af421 BP |
2176 | struct rule *rule; |
2177 | ||
97f63e57 BP |
2178 | /* First do a cheap check whether the rule we're looking for has already |
2179 | * been deleted. If so, then we're done. */ | |
39c94593 JR |
2180 | rule = rule_from_cls_rule(classifier_find_match_exactly( |
2181 | cls, target, priority, CLS_MAX_VERSION)); | |
834fe5cb BP |
2182 | if (!rule) { |
2183 | return; | |
bcf84111 | 2184 | } |
834fe5cb BP |
2185 | |
2186 | /* Execute a flow mod. We can't optimize this at all because we didn't | |
2187 | * take enough locks above to ensure that the flow table didn't already | |
2188 | * change beneath us. */ | |
2189 | simple_flow_mod(ofproto, target, priority, NULL, 0, OFPFC_DELETE_STRICT); | |
142e1f5c BP |
2190 | } |
2191 | ||
834fe5cb BP |
2192 | /* Delete all of the flows from all of ofproto's flow tables, then reintroduce |
2193 | * the flows required by in-band control and fail-open. */ | |
142e1f5c BP |
2194 | void |
2195 | ofproto_flush_flows(struct ofproto *ofproto) | |
2196 | { | |
7ee20df1 | 2197 | COVERAGE_INC(ofproto_flush); |
834fe5cb BP |
2198 | ofproto_flush__(ofproto); |
2199 | connmgr_flushed(ofproto->connmgr); | |
064af421 BP |
2200 | } |
2201 | \f | |
2202 | static void | |
2203 | reinit_ports(struct ofproto *p) | |
2204 | { | |
abe529af | 2205 | struct ofproto_port_dump dump; |
b3c01ed3 | 2206 | struct sset devnames; |
064af421 | 2207 | struct ofport *ofport; |
abe529af | 2208 | struct ofproto_port ofproto_port; |
b3c01ed3 | 2209 | const char *devname; |
064af421 | 2210 | |
898bf89d JP |
2211 | COVERAGE_INC(ofproto_reinit_ports); |
2212 | ||
b3c01ed3 | 2213 | sset_init(&devnames); |
4e8e4213 | 2214 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { |
1264ec95 | 2215 | sset_add(&devnames, netdev_get_name(ofport->netdev)); |
064af421 | 2216 | } |
abe529af BP |
2217 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { |
2218 | sset_add(&devnames, ofproto_port.name); | |
064af421 | 2219 | } |
064af421 | 2220 | |
b3c01ed3 BP |
2221 | SSET_FOR_EACH (devname, &devnames) { |
2222 | update_port(p, devname); | |
064af421 | 2223 | } |
b3c01ed3 | 2224 | sset_destroy(&devnames); |
064af421 BP |
2225 | } |
2226 | ||
4e022ec0 | 2227 | static ofp_port_t |
e1b1d06a JP |
2228 | alloc_ofp_port(struct ofproto *ofproto, const char *netdev_name) |
2229 | { | |
4e022ec0 | 2230 | uint16_t port_idx; |
e1b1d06a | 2231 | |
4e022ec0 | 2232 | port_idx = simap_get(&ofproto->ofp_requests, netdev_name); |
430dbb14 | 2233 | port_idx = port_idx ? port_idx : UINT16_MAX; |
4e022ec0 | 2234 | |
430dbb14 | 2235 | if (port_idx >= ofproto->max_ports |
fdcea803 GS |
2236 | || ofport_get_usage(ofproto, u16_to_ofp(port_idx)) == LLONG_MAX) { |
2237 | uint16_t lru_ofport = 0, end_port_no = ofproto->alloc_port_no; | |
2238 | long long int last_used_at, lru = LLONG_MAX; | |
e1b1d06a | 2239 | |
e1b1d06a JP |
2240 | /* Search for a free OpenFlow port number. We try not to |
2241 | * immediately reuse them to prevent problems due to old | |
484c8355 BP |
2242 | * flows. |
2243 | * | |
2244 | * We limit the automatically assigned port numbers to the lower half | |
2245 | * of the port range, to reserve the upper half for assignment by | |
2246 | * controllers. */ | |
6033d9d9 | 2247 | for (;;) { |
484c8355 | 2248 | if (++ofproto->alloc_port_no >= MIN(ofproto->max_ports, 32768)) { |
fdcea803 | 2249 | ofproto->alloc_port_no = 1; |
6033d9d9 | 2250 | } |
fdcea803 GS |
2251 | last_used_at = ofport_get_usage(ofproto, |
2252 | u16_to_ofp(ofproto->alloc_port_no)); | |
2253 | if (!last_used_at) { | |
430dbb14 | 2254 | port_idx = ofproto->alloc_port_no; |
6033d9d9 | 2255 | break; |
865b26a4 GS |
2256 | } else if ( last_used_at < time_msec() - 60*60*1000) { |
2257 | /* If the port with ofport 'ofproto->alloc_port_no' was deleted | |
2258 | * more than an hour ago, consider it usable. */ | |
2259 | ofport_remove_usage(ofproto, | |
2260 | u16_to_ofp(ofproto->alloc_port_no)); | |
2261 | port_idx = ofproto->alloc_port_no; | |
2262 | break; | |
fdcea803 GS |
2263 | } else if (last_used_at < lru) { |
2264 | lru = last_used_at; | |
2265 | lru_ofport = ofproto->alloc_port_no; | |
e1b1d06a | 2266 | } |
fdcea803 | 2267 | |
430dbb14 | 2268 | if (ofproto->alloc_port_no == end_port_no) { |
fdcea803 GS |
2269 | if (lru_ofport) { |
2270 | port_idx = lru_ofport; | |
2271 | break; | |
2272 | } | |
6033d9d9 | 2273 | return OFPP_NONE; |
e1b1d06a JP |
2274 | } |
2275 | } | |
2276 | } | |
fdcea803 | 2277 | ofport_set_usage(ofproto, u16_to_ofp(port_idx), LLONG_MAX); |
4e022ec0 | 2278 | return u16_to_ofp(port_idx); |
e1b1d06a JP |
2279 | } |
2280 | ||
2281 | static void | |
fdcea803 | 2282 | dealloc_ofp_port(struct ofproto *ofproto, ofp_port_t ofp_port) |
e1b1d06a | 2283 | { |
430dbb14 | 2284 | if (ofp_to_u16(ofp_port) < ofproto->max_ports) { |
fdcea803 | 2285 | ofport_set_usage(ofproto, ofp_port, time_msec()); |
40fa9417 | 2286 | } |
e1b1d06a JP |
2287 | } |
2288 | ||
fbfa2911 BP |
2289 | /* Opens and returns a netdev for 'ofproto_port' in 'ofproto', or a null |
2290 | * pointer if the netdev cannot be opened. On success, also fills in | |
d7d92203 | 2291 | * '*pp'. */ |
b33951b8 | 2292 | static struct netdev * |
e1b1d06a JP |
2293 | ofport_open(struct ofproto *ofproto, |
2294 | struct ofproto_port *ofproto_port, | |
9e1fd49b | 2295 | struct ofputil_phy_port *pp) |
064af421 BP |
2296 | { |
2297 | enum netdev_flags flags; | |
064af421 | 2298 | struct netdev *netdev; |
064af421 BP |
2299 | int error; |
2300 | ||
18812dff | 2301 | error = netdev_open(ofproto_port->name, ofproto_port->type, &netdev); |
064af421 | 2302 | if (error) { |
fbfa2911 | 2303 | VLOG_WARN_RL(&rl, "%s: ignoring port %s (%"PRIu16") because netdev %s " |
064af421 | 2304 | "cannot be opened (%s)", |
fbfa2911 | 2305 | ofproto->name, |
abe529af | 2306 | ofproto_port->name, ofproto_port->ofp_port, |
10a89ef0 | 2307 | ofproto_port->name, ovs_strerror(error)); |
064af421 BP |
2308 | return NULL; |
2309 | } | |
2310 | ||
e1b1d06a JP |
2311 | if (ofproto_port->ofp_port == OFPP_NONE) { |
2312 | if (!strcmp(ofproto->name, ofproto_port->name)) { | |
2313 | ofproto_port->ofp_port = OFPP_LOCAL; | |
2314 | } else { | |
2315 | ofproto_port->ofp_port = alloc_ofp_port(ofproto, | |
2316 | ofproto_port->name); | |
2317 | } | |
2318 | } | |
9e1fd49b BP |
2319 | pp->port_no = ofproto_port->ofp_port; |
2320 | netdev_get_etheraddr(netdev, pp->hw_addr); | |
2321 | ovs_strlcpy(pp->name, ofproto_port->name, sizeof pp->name); | |
064af421 | 2322 | netdev_get_flags(netdev, &flags); |
9e1fd49b BP |
2323 | pp->config = flags & NETDEV_UP ? 0 : OFPUTIL_PC_PORT_DOWN; |
2324 | pp->state = netdev_get_carrier(netdev) ? 0 : OFPUTIL_PS_LINK_DOWN; | |
2325 | netdev_get_features(netdev, &pp->curr, &pp->advertised, | |
2326 | &pp->supported, &pp->peer); | |
cd65125d BP |
2327 | pp->curr_speed = netdev_features_to_bps(pp->curr, 0) / 1000; |
2328 | pp->max_speed = netdev_features_to_bps(pp->supported, 0) / 1000; | |
118c4676 | 2329 | |
b33951b8 | 2330 | return netdev; |
064af421 BP |
2331 | } |
2332 | ||
b33951b8 | 2333 | /* Returns true if most fields of 'a' and 'b' are equal. Differences in name, |
d7d92203 | 2334 | * port number, and 'config' bits other than OFPUTIL_PC_PORT_DOWN are |
b33951b8 BP |
2335 | * disregarded. */ |
2336 | static bool | |
9e1fd49b BP |
2337 | ofport_equal(const struct ofputil_phy_port *a, |
2338 | const struct ofputil_phy_port *b) | |
064af421 | 2339 | { |
9e1fd49b | 2340 | return (eth_addr_equals(a->hw_addr, b->hw_addr) |
064af421 | 2341 | && a->state == b->state |
9e1fd49b | 2342 | && !((a->config ^ b->config) & OFPUTIL_PC_PORT_DOWN) |
064af421 BP |
2343 | && a->curr == b->curr |
2344 | && a->advertised == b->advertised | |
2345 | && a->supported == b->supported | |
9e1fd49b BP |
2346 | && a->peer == b->peer |
2347 | && a->curr_speed == b->curr_speed | |
2348 | && a->max_speed == b->max_speed); | |
064af421 BP |
2349 | } |
2350 | ||
b33951b8 BP |
2351 | /* Adds an ofport to 'p' initialized based on the given 'netdev' and 'opp'. |
2352 | * The caller must ensure that 'p' does not have a conflicting ofport (that is, | |
2353 | * one with the same name or port number). */ | |
064af421 | 2354 | static void |
b33951b8 | 2355 | ofport_install(struct ofproto *p, |
9e1fd49b | 2356 | struct netdev *netdev, const struct ofputil_phy_port *pp) |
064af421 | 2357 | { |
b33951b8 BP |
2358 | const char *netdev_name = netdev_get_name(netdev); |
2359 | struct ofport *ofport; | |
abe529af | 2360 | int error; |
72b06300 | 2361 | |
b33951b8 | 2362 | /* Create ofport. */ |
abe529af BP |
2363 | ofport = p->ofproto_class->port_alloc(); |
2364 | if (!ofport) { | |
2365 | error = ENOMEM; | |
2366 | goto error; | |
2367 | } | |
0f7d71a5 | 2368 | ofport->ofproto = p; |
b33951b8 | 2369 | ofport->netdev = netdev; |
61501798 | 2370 | ofport->change_seq = netdev_get_change_seq(netdev); |
9e1fd49b BP |
2371 | ofport->pp = *pp; |
2372 | ofport->ofp_port = pp->port_no; | |
65e0be10 | 2373 | ofport->created = time_msec(); |
b33951b8 BP |
2374 | |
2375 | /* Add port to 'p'. */ | |
4e022ec0 | 2376 | hmap_insert(&p->ports, &ofport->hmap_node, |
f9c0c3ec | 2377 | hash_ofp_port(ofport->ofp_port)); |
72b06300 | 2378 | shash_add(&p->port_by_name, netdev_name, ofport); |
abe529af | 2379 | |
ada3428f | 2380 | update_mtu(p, ofport); |
9197df76 | 2381 | |
abe529af BP |
2382 | /* Let the ofproto_class initialize its private data. */ |
2383 | error = p->ofproto_class->port_construct(ofport); | |
2384 | if (error) { | |
2385 | goto error; | |
2386 | } | |
2a6f78e0 | 2387 | connmgr_send_port_status(p->connmgr, NULL, pp, OFPPR_ADD); |
abe529af BP |
2388 | return; |
2389 | ||
2390 | error: | |
2391 | VLOG_WARN_RL(&rl, "%s: could not add port %s (%s)", | |
10a89ef0 | 2392 | p->name, netdev_name, ovs_strerror(error)); |
abe529af BP |
2393 | if (ofport) { |
2394 | ofport_destroy__(ofport); | |
2395 | } else { | |
2396 | netdev_close(netdev); | |
72b06300 | 2397 | } |
064af421 BP |
2398 | } |
2399 | ||
b33951b8 | 2400 | /* Removes 'ofport' from 'p' and destroys it. */ |
064af421 | 2401 | static void |
0f7d71a5 | 2402 | ofport_remove(struct ofport *ofport) |
064af421 | 2403 | { |
2a6f78e0 | 2404 | connmgr_send_port_status(ofport->ofproto->connmgr, NULL, &ofport->pp, |
fa066f01 | 2405 | OFPPR_DELETE); |
abe529af | 2406 | ofport_destroy(ofport); |
b33951b8 BP |
2407 | } |
2408 | ||
2409 | /* If 'ofproto' contains an ofport named 'name', removes it from 'ofproto' and | |
2410 | * destroys it. */ | |
2411 | static void | |
2412 | ofport_remove_with_name(struct ofproto *ofproto, const char *name) | |
2413 | { | |
2414 | struct ofport *port = shash_find_data(&ofproto->port_by_name, name); | |
2415 | if (port) { | |
0f7d71a5 | 2416 | ofport_remove(port); |
b33951b8 BP |
2417 | } |
2418 | } | |
2419 | ||
9e1fd49b | 2420 | /* Updates 'port' with new 'pp' description. |
b33951b8 BP |
2421 | * |
2422 | * Does not handle a name or port number change. The caller must implement | |
2423 | * such a change as a delete followed by an add. */ | |
2424 | static void | |
9e1fd49b | 2425 | ofport_modified(struct ofport *port, struct ofputil_phy_port *pp) |
b33951b8 | 2426 | { |
9e1fd49b BP |
2427 | memcpy(port->pp.hw_addr, pp->hw_addr, ETH_ADDR_LEN); |
2428 | port->pp.config = ((port->pp.config & ~OFPUTIL_PC_PORT_DOWN) | |
2429 | | (pp->config & OFPUTIL_PC_PORT_DOWN)); | |
53fd5c7c BP |
2430 | port->pp.state = ((port->pp.state & ~OFPUTIL_PS_LINK_DOWN) |
2431 | | (pp->state & OFPUTIL_PS_LINK_DOWN)); | |
9e1fd49b BP |
2432 | port->pp.curr = pp->curr; |
2433 | port->pp.advertised = pp->advertised; | |
2434 | port->pp.supported = pp->supported; | |
2435 | port->pp.peer = pp->peer; | |
2436 | port->pp.curr_speed = pp->curr_speed; | |
2437 | port->pp.max_speed = pp->max_speed; | |
b33951b8 | 2438 | |
2a6f78e0 BP |
2439 | connmgr_send_port_status(port->ofproto->connmgr, NULL, |
2440 | &port->pp, OFPPR_MODIFY); | |
064af421 BP |
2441 | } |
2442 | ||
5a2dfd47 JP |
2443 | /* Update OpenFlow 'state' in 'port' and notify controller. */ |
2444 | void | |
9e1fd49b | 2445 | ofproto_port_set_state(struct ofport *port, enum ofputil_port_state state) |
5a2dfd47 | 2446 | { |
9e1fd49b BP |
2447 | if (port->pp.state != state) { |
2448 | port->pp.state = state; | |
2a6f78e0 BP |
2449 | connmgr_send_port_status(port->ofproto->connmgr, NULL, |
2450 | &port->pp, OFPPR_MODIFY); | |
5a2dfd47 JP |
2451 | } |
2452 | } | |
2453 | ||
abe529af | 2454 | void |
4e022ec0 | 2455 | ofproto_port_unregister(struct ofproto *ofproto, ofp_port_t ofp_port) |
e7934396 | 2456 | { |
abe529af BP |
2457 | struct ofport *port = ofproto_get_port(ofproto, ofp_port); |
2458 | if (port) { | |
52a90c29 BP |
2459 | if (port->ofproto->ofproto_class->set_realdev) { |
2460 | port->ofproto->ofproto_class->set_realdev(port, 0, 0); | |
2461 | } | |
b308140a JP |
2462 | if (port->ofproto->ofproto_class->set_stp_port) { |
2463 | port->ofproto->ofproto_class->set_stp_port(port, NULL); | |
2464 | } | |
9efd308e DV |
2465 | if (port->ofproto->ofproto_class->set_rstp_port) { |
2466 | port->ofproto->ofproto_class->set_rstp_port(port, NULL); | |
2467 | } | |
abe529af | 2468 | if (port->ofproto->ofproto_class->set_cfm) { |
a5610457 | 2469 | port->ofproto->ofproto_class->set_cfm(port, NULL); |
abe529af BP |
2470 | } |
2471 | if (port->ofproto->ofproto_class->bundle_remove) { | |
2472 | port->ofproto->ofproto_class->bundle_remove(port); | |
e7934396 BP |
2473 | } |
2474 | } | |
2475 | } | |
2476 | ||
2477 | static void | |
abe529af | 2478 | ofport_destroy__(struct ofport *port) |
e7934396 | 2479 | { |
abe529af BP |
2480 | struct ofproto *ofproto = port->ofproto; |
2481 | const char *name = netdev_get_name(port->netdev); | |
fa066f01 | 2482 | |
abe529af BP |
2483 | hmap_remove(&ofproto->ports, &port->hmap_node); |
2484 | shash_delete(&ofproto->port_by_name, | |
2485 | shash_find(&ofproto->port_by_name, name)); | |
fa066f01 | 2486 | |
abe529af BP |
2487 | netdev_close(port->netdev); |
2488 | ofproto->ofproto_class->port_dealloc(port); | |
e7934396 BP |
2489 | } |
2490 | ||
064af421 | 2491 | static void |
abe529af | 2492 | ofport_destroy(struct ofport *port) |
064af421 | 2493 | { |
fa066f01 | 2494 | if (port) { |
e1b1d06a | 2495 | dealloc_ofp_port(port->ofproto, port->ofp_port); |
abe529af BP |
2496 | port->ofproto->ofproto_class->port_destruct(port); |
2497 | ofport_destroy__(port); | |
2498 | } | |
064af421 BP |
2499 | } |
2500 | ||
abe529af | 2501 | struct ofport * |
4e022ec0 | 2502 | ofproto_get_port(const struct ofproto *ofproto, ofp_port_t ofp_port) |
ca0f572c BP |
2503 | { |
2504 | struct ofport *port; | |
2505 | ||
f9c0c3ec | 2506 | HMAP_FOR_EACH_IN_BUCKET (port, hmap_node, hash_ofp_port(ofp_port), |
4e022ec0 | 2507 | &ofproto->ports) { |
abe529af | 2508 | if (port->ofp_port == ofp_port) { |
ca0f572c BP |
2509 | return port; |
2510 | } | |
2511 | } | |
2512 | return NULL; | |
2513 | } | |
2514 | ||
fdcea803 GS |
2515 | static long long int |
2516 | ofport_get_usage(const struct ofproto *ofproto, ofp_port_t ofp_port) | |
2517 | { | |
2518 | struct ofport_usage *usage; | |
2519 | ||
2520 | HMAP_FOR_EACH_IN_BUCKET (usage, hmap_node, hash_ofp_port(ofp_port), | |
2521 | &ofproto->ofport_usage) { | |
2522 | if (usage->ofp_port == ofp_port) { | |
2523 | return usage->last_used; | |
2524 | } | |
2525 | } | |
2526 | return 0; | |
2527 | } | |
2528 | ||
2529 | static void | |
2530 | ofport_set_usage(struct ofproto *ofproto, ofp_port_t ofp_port, | |
2531 | long long int last_used) | |
2532 | { | |
2533 | struct ofport_usage *usage; | |
2534 | HMAP_FOR_EACH_IN_BUCKET (usage, hmap_node, hash_ofp_port(ofp_port), | |
2535 | &ofproto->ofport_usage) { | |
2536 | if (usage->ofp_port == ofp_port) { | |
2537 | usage->last_used = last_used; | |
2538 | return; | |
2539 | } | |
2540 | } | |
2541 | ovs_assert(last_used == LLONG_MAX); | |
2542 | ||
2543 | usage = xmalloc(sizeof *usage); | |
2544 | usage->ofp_port = ofp_port; | |
2545 | usage->last_used = last_used; | |
2546 | hmap_insert(&ofproto->ofport_usage, &usage->hmap_node, | |
2547 | hash_ofp_port(ofp_port)); | |
2548 | } | |
2549 | ||
865b26a4 GS |
2550 | static void |
2551 | ofport_remove_usage(struct ofproto *ofproto, ofp_port_t ofp_port) | |
2552 | { | |
2553 | struct ofport_usage *usage; | |
2554 | HMAP_FOR_EACH_IN_BUCKET (usage, hmap_node, hash_ofp_port(ofp_port), | |
2555 | &ofproto->ofport_usage) { | |
2556 | if (usage->ofp_port == ofp_port) { | |
2557 | hmap_remove(&ofproto->ofport_usage, &usage->hmap_node); | |
2558 | free(usage); | |
2559 | break; | |
2560 | } | |
2561 | } | |
2562 | } | |
2563 | ||
6527c598 PS |
2564 | int |
2565 | ofproto_port_get_stats(const struct ofport *port, struct netdev_stats *stats) | |
2566 | { | |
2567 | struct ofproto *ofproto = port->ofproto; | |
2568 | int error; | |
2569 | ||
2570 | if (ofproto->ofproto_class->port_get_stats) { | |
2571 | error = ofproto->ofproto_class->port_get_stats(port, stats); | |
2572 | } else { | |
2573 | error = EOPNOTSUPP; | |
2574 | } | |
2575 | ||
2576 | return error; | |
2577 | } | |
2578 | ||
064af421 | 2579 | static void |
b33951b8 | 2580 | update_port(struct ofproto *ofproto, const char *name) |
064af421 | 2581 | { |
abe529af | 2582 | struct ofproto_port ofproto_port; |
9e1fd49b | 2583 | struct ofputil_phy_port pp; |
b33951b8 BP |
2584 | struct netdev *netdev; |
2585 | struct ofport *port; | |
064af421 BP |
2586 | |
2587 | COVERAGE_INC(ofproto_update_port); | |
c874dc6d | 2588 | |
b33951b8 | 2589 | /* Fetch 'name''s location and properties from the datapath. */ |
abe529af | 2590 | netdev = (!ofproto_port_query_by_name(ofproto, name, &ofproto_port) |
fbfa2911 | 2591 | ? ofport_open(ofproto, &ofproto_port, &pp) |
b33951b8 | 2592 | : NULL); |
4e022ec0 | 2593 | |
b33951b8 | 2594 | if (netdev) { |
abe529af | 2595 | port = ofproto_get_port(ofproto, ofproto_port.ofp_port); |
b33951b8 | 2596 | if (port && !strcmp(netdev_get_name(port->netdev), name)) { |
e65942a0 BP |
2597 | struct netdev *old_netdev = port->netdev; |
2598 | ||
b33951b8 | 2599 | /* 'name' hasn't changed location. Any properties changed? */ |
9e1fd49b BP |
2600 | if (!ofport_equal(&port->pp, &pp)) { |
2601 | ofport_modified(port, &pp); | |
abe529af BP |
2602 | } |
2603 | ||
ada3428f | 2604 | update_mtu(ofproto, port); |
9197df76 | 2605 | |
e65942a0 BP |
2606 | /* Install the newly opened netdev in case it has changed. |
2607 | * Don't close the old netdev yet in case port_modified has to | |
2608 | * remove a retained reference to it.*/ | |
abe529af | 2609 | port->netdev = netdev; |
61501798 | 2610 | port->change_seq = netdev_get_change_seq(netdev); |
abe529af BP |
2611 | |
2612 | if (port->ofproto->ofproto_class->port_modified) { | |
2613 | port->ofproto->ofproto_class->port_modified(port); | |
b33951b8 | 2614 | } |
e65942a0 BP |
2615 | |
2616 | netdev_close(old_netdev); | |
b33951b8 BP |
2617 | } else { |
2618 | /* If 'port' is nonnull then its name differs from 'name' and thus | |
2619 | * we should delete it. If we think there's a port named 'name' | |
2620 | * then its port number must be wrong now so delete it too. */ | |
2621 | if (port) { | |
0f7d71a5 | 2622 | ofport_remove(port); |
b33951b8 BP |
2623 | } |
2624 | ofport_remove_with_name(ofproto, name); | |
9e1fd49b | 2625 | ofport_install(ofproto, netdev, &pp); |
c874dc6d | 2626 | } |
b33951b8 BP |
2627 | } else { |
2628 | /* Any port named 'name' is gone now. */ | |
2629 | ofport_remove_with_name(ofproto, name); | |
c874dc6d | 2630 | } |
abe529af | 2631 | ofproto_port_destroy(&ofproto_port); |
064af421 BP |
2632 | } |
2633 | ||
2634 | static int | |
2635 | init_ports(struct ofproto *p) | |
2636 | { | |
abe529af BP |
2637 | struct ofproto_port_dump dump; |
2638 | struct ofproto_port ofproto_port; | |
e1b1d06a | 2639 | struct shash_node *node, *next; |
abe529af BP |
2640 | |
2641 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { | |
e1b1d06a JP |
2642 | const char *name = ofproto_port.name; |
2643 | ||
2644 | if (shash_find(&p->port_by_name, name)) { | |
fbfa2911 | 2645 | VLOG_WARN_RL(&rl, "%s: ignoring duplicate device %s in datapath", |
e1b1d06a | 2646 | p->name, name); |
abe529af | 2647 | } else { |
9e1fd49b | 2648 | struct ofputil_phy_port pp; |
b33951b8 BP |
2649 | struct netdev *netdev; |
2650 | ||
e1b1d06a JP |
2651 | /* Check if an OpenFlow port number had been requested. */ |
2652 | node = shash_find(&init_ofp_ports, name); | |
2653 | if (node) { | |
2654 | const struct iface_hint *iface_hint = node->data; | |
4e022ec0 AW |
2655 | simap_put(&p->ofp_requests, name, |
2656 | ofp_to_u16(iface_hint->ofp_port)); | |
e1b1d06a JP |
2657 | } |
2658 | ||
fbfa2911 | 2659 | netdev = ofport_open(p, &ofproto_port, &pp); |
b33951b8 | 2660 | if (netdev) { |
9e1fd49b | 2661 | ofport_install(p, netdev, &pp); |
430dbb14 | 2662 | if (ofp_to_u16(ofproto_port.ofp_port) < p->max_ports) { |
7c35397c | 2663 | p->alloc_port_no = MAX(p->alloc_port_no, |
430dbb14 | 2664 | ofp_to_u16(ofproto_port.ofp_port)); |
7c35397c | 2665 | } |
064af421 BP |
2666 | } |
2667 | } | |
2668 | } | |
b0ec0f27 | 2669 | |
e1b1d06a | 2670 | SHASH_FOR_EACH_SAFE(node, next, &init_ofp_ports) { |
4f9e08a5 | 2671 | struct iface_hint *iface_hint = node->data; |
e1b1d06a JP |
2672 | |
2673 | if (!strcmp(iface_hint->br_name, p->name)) { | |
2674 | free(iface_hint->br_name); | |
2675 | free(iface_hint->br_type); | |
4f9e08a5 | 2676 | free(iface_hint); |
e1b1d06a JP |
2677 | shash_delete(&init_ofp_ports, node); |
2678 | } | |
2679 | } | |
2680 | ||
064af421 BP |
2681 | return 0; |
2682 | } | |
9197df76 JP |
2683 | |
2684 | /* Find the minimum MTU of all non-datapath devices attached to 'p'. | |
2685 | * Returns ETH_PAYLOAD_MAX or the minimum of the ports. */ | |
2686 | static int | |
2687 | find_min_mtu(struct ofproto *p) | |
2688 | { | |
2689 | struct ofport *ofport; | |
2690 | int mtu = 0; | |
2691 | ||
2692 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
2693 | struct netdev *netdev = ofport->netdev; | |
2694 | int dev_mtu; | |
2695 | ||
2696 | /* Skip any internal ports, since that's what we're trying to | |
2697 | * set. */ | |
2698 | if (!strcmp(netdev_get_type(netdev), "internal")) { | |
2699 | continue; | |
2700 | } | |
2701 | ||
2702 | if (netdev_get_mtu(netdev, &dev_mtu)) { | |
2703 | continue; | |
2704 | } | |
2705 | if (!mtu || dev_mtu < mtu) { | |
2706 | mtu = dev_mtu; | |
2707 | } | |
2708 | } | |
2709 | ||
2710 | return mtu ? mtu: ETH_PAYLOAD_MAX; | |
2711 | } | |
2712 | ||
ada3428f PS |
2713 | /* Update MTU of all datapath devices on 'p' to the minimum of the |
2714 | * non-datapath ports in event of 'port' added or changed. */ | |
9197df76 | 2715 | static void |
ada3428f | 2716 | update_mtu(struct ofproto *p, struct ofport *port) |
9197df76 JP |
2717 | { |
2718 | struct ofport *ofport; | |
ada3428f PS |
2719 | struct netdev *netdev = port->netdev; |
2720 | int dev_mtu, old_min; | |
2721 | ||
2722 | if (netdev_get_mtu(netdev, &dev_mtu)) { | |
2723 | port->mtu = 0; | |
2724 | return; | |
2725 | } | |
2726 | if (!strcmp(netdev_get_type(port->netdev), "internal")) { | |
2727 | if (dev_mtu > p->min_mtu) { | |
2728 | if (!netdev_set_mtu(port->netdev, p->min_mtu)) { | |
2729 | dev_mtu = p->min_mtu; | |
2730 | } | |
2731 | } | |
2732 | port->mtu = dev_mtu; | |
2733 | return; | |
2734 | } | |
2735 | ||
2736 | /* For non-internal port find new min mtu. */ | |
2737 | old_min = p->min_mtu; | |
2738 | port->mtu = dev_mtu; | |
2739 | p->min_mtu = find_min_mtu(p); | |
2740 | if (p->min_mtu == old_min) { | |
2741 | return; | |
2742 | } | |
9197df76 JP |
2743 | |
2744 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
2745 | struct netdev *netdev = ofport->netdev; | |
2746 | ||
2747 | if (!strcmp(netdev_get_type(netdev), "internal")) { | |
ada3428f PS |
2748 | if (!netdev_set_mtu(netdev, p->min_mtu)) { |
2749 | ofport->mtu = p->min_mtu; | |
2750 | } | |
9197df76 JP |
2751 | } |
2752 | } | |
2753 | } | |
064af421 | 2754 | \f |
f416c8d6 JR |
2755 | static void |
2756 | ofproto_rule_destroy__(struct rule *rule) | |
2757 | OVS_NO_THREAD_SAFETY_ANALYSIS | |
2758 | { | |
2759 | cls_rule_destroy(CONST_CAST(struct cls_rule *, &rule->cr)); | |
2760 | rule_actions_destroy(rule_get_actions(rule)); | |
2761 | ovs_mutex_destroy(&rule->mutex); | |
2762 | rule->ofproto->ofproto_class->rule_dealloc(rule); | |
2763 | } | |
2764 | ||
2765 | static void | |
2766 | rule_destroy_cb(struct rule *rule) | |
f695ebfa | 2767 | OVS_NO_THREAD_SAFETY_ANALYSIS |
f416c8d6 | 2768 | { |
f695ebfa JR |
2769 | /* Send rule removed if needed. */ |
2770 | if (rule->flags & OFPUTIL_FF_SEND_FLOW_REM | |
2771 | && rule->removed_reason != OVS_OFPRR_NONE | |
2772 | && !rule_is_hidden(rule)) { | |
2773 | ofproto_rule_send_removed(rule); | |
2774 | } | |
f416c8d6 JR |
2775 | rule->ofproto->ofproto_class->rule_destruct(rule); |
2776 | ofproto_rule_destroy__(rule); | |
2777 | } | |
2778 | ||
a2143702 BP |
2779 | void |
2780 | ofproto_rule_ref(struct rule *rule) | |
064af421 | 2781 | { |
1eae3d33 | 2782 | if (rule) { |
37bec3d3 | 2783 | ovs_refcount_ref(&rule->ref_count); |
a2143702 BP |
2784 | } |
2785 | } | |
2786 | ||
f5d16e55 JR |
2787 | bool |
2788 | ofproto_rule_try_ref(struct rule *rule) | |
2789 | { | |
2790 | if (rule) { | |
2791 | return ovs_refcount_try_ref_rcu(&rule->ref_count); | |
2792 | } | |
2793 | return false; | |
2794 | } | |
2795 | ||
f416c8d6 JR |
2796 | /* Decrements 'rule''s ref_count and schedules 'rule' to be destroyed if the |
2797 | * ref_count reaches 0. | |
2798 | * | |
2799 | * Use of RCU allows short term use (between RCU quiescent periods) without | |
2800 | * keeping a reference. A reference must be taken if the rule needs to | |
2801 | * stay around accross the RCU quiescent periods. */ | |
a2143702 BP |
2802 | void |
2803 | ofproto_rule_unref(struct rule *rule) | |
2804 | { | |
24f83812 | 2805 | if (rule && ovs_refcount_unref_relaxed(&rule->ref_count) == 1) { |
f416c8d6 | 2806 | ovsrcu_postpone(rule_destroy_cb, rule); |
1eae3d33 | 2807 | } |
064af421 BP |
2808 | } |
2809 | ||
39c94593 JR |
2810 | static void |
2811 | remove_rule_rcu__(struct rule *rule) | |
2812 | OVS_REQUIRES(ofproto_mutex) | |
2813 | { | |
2814 | struct ofproto *ofproto = rule->ofproto; | |
2815 | struct oftable *table = &ofproto->tables[rule->table_id]; | |
2816 | ||
2817 | ovs_assert(!cls_rule_visible_in_version(&rule->cr, CLS_MAX_VERSION)); | |
2818 | if (!classifier_remove(&table->cls, &rule->cr)) { | |
2819 | OVS_NOT_REACHED(); | |
2820 | } | |
2821 | ofproto->ofproto_class->rule_delete(rule); | |
2822 | ofproto_rule_unref(rule); | |
2823 | } | |
2824 | ||
2825 | static void | |
2826 | remove_rule_rcu(struct rule *rule) | |
2827 | OVS_EXCLUDED(ofproto_mutex) | |
2828 | { | |
2829 | ovs_mutex_lock(&ofproto_mutex); | |
2830 | remove_rule_rcu__(rule); | |
2831 | ovs_mutex_unlock(&ofproto_mutex); | |
2832 | } | |
2833 | ||
2834 | /* Removes and deletes rules from a NULL-terminated array of rule pointers. */ | |
2835 | static void | |
2836 | remove_rules_rcu(struct rule **rules) | |
2837 | OVS_EXCLUDED(ofproto_mutex) | |
2838 | { | |
2839 | struct rule **orig_rules = rules; | |
2840 | ||
2841 | if (*rules) { | |
2842 | struct ofproto *ofproto = rules[0]->ofproto; | |
2843 | unsigned long tables[BITMAP_N_LONGS(256)]; | |
2844 | struct rule *rule; | |
2845 | size_t table_id; | |
2846 | ||
2847 | memset(tables, 0, sizeof tables); | |
2848 | ||
2849 | ovs_mutex_lock(&ofproto_mutex); | |
2850 | while ((rule = *rules++)) { | |
2851 | /* Defer once for each new table. This defers the subtable cleanup | |
2852 | * until later, so that when removing large number of flows the | |
2853 | * operation is faster. */ | |
2854 | if (!bitmap_is_set(tables, rule->table_id)) { | |
2855 | struct classifier *cls = &ofproto->tables[rule->table_id].cls; | |
2856 | ||
2857 | bitmap_set1(tables, rule->table_id); | |
2858 | classifier_defer(cls); | |
2859 | } | |
2860 | remove_rule_rcu__(rule); | |
2861 | } | |
2862 | ||
2863 | BITMAP_FOR_EACH_1(table_id, 256, tables) { | |
2864 | struct classifier *cls = &ofproto->tables[table_id].cls; | |
2865 | ||
2866 | classifier_publish(cls); | |
2867 | } | |
2868 | ovs_mutex_unlock(&ofproto_mutex); | |
2869 | } | |
2870 | ||
2871 | free(orig_rules); | |
2872 | } | |
2873 | ||
809c7548 RW |
2874 | void |
2875 | ofproto_group_ref(struct ofgroup *group) | |
2876 | { | |
2877 | if (group) { | |
2878 | ovs_refcount_ref(&group->ref_count); | |
2879 | } | |
2880 | } | |
2881 | ||
2882 | void | |
2883 | ofproto_group_unref(struct ofgroup *group) | |
2884 | { | |
2885 | if (group && ovs_refcount_unref(&group->ref_count) == 1) { | |
2886 | group->ofproto->ofproto_class->group_destruct(group); | |
2887 | ofputil_bucket_list_destroy(&group->buckets); | |
2888 | group->ofproto->ofproto_class->group_dealloc(group); | |
2889 | } | |
2890 | } | |
2891 | ||
65efd2ab JR |
2892 | static uint32_t get_provider_meter_id(const struct ofproto *, |
2893 | uint32_t of_meter_id); | |
2894 | ||
dc723c44 JR |
2895 | /* Creates and returns a new 'struct rule_actions', whose actions are a copy |
2896 | * of from the 'ofpacts_len' bytes of 'ofpacts'. */ | |
2897 | const struct rule_actions * | |
4c7562c5 | 2898 | rule_actions_create(const struct ofpact *ofpacts, size_t ofpacts_len) |
6f00e29b BP |
2899 | { |
2900 | struct rule_actions *actions; | |
2901 | ||
dc723c44 | 2902 | actions = xmalloc(sizeof *actions + ofpacts_len); |
6f00e29b | 2903 | actions->ofpacts_len = ofpacts_len; |
4c7562c5 | 2904 | actions->has_meter = ofpacts_get_meter(ofpacts, ofpacts_len) != 0; |
dc723c44 | 2905 | memcpy(actions->ofpacts, ofpacts, ofpacts_len); |
65efd2ab | 2906 | |
35f48b8b BP |
2907 | actions->has_learn_with_delete = (next_learn_with_delete(actions, NULL) |
2908 | != NULL); | |
2909 | ||
6f00e29b BP |
2910 | return actions; |
2911 | } | |
2912 | ||
dc723c44 | 2913 | /* Free the actions after the RCU quiescent period is reached. */ |
6f00e29b | 2914 | void |
dc723c44 | 2915 | rule_actions_destroy(const struct rule_actions *actions) |
6f00e29b | 2916 | { |
06a0f3e2 | 2917 | if (actions) { |
dc723c44 | 2918 | ovsrcu_postpone(free, CONST_CAST(struct rule_actions *, actions)); |
6f00e29b BP |
2919 | } |
2920 | } | |
2921 | ||
bcf84111 | 2922 | /* Returns true if 'rule' has an OpenFlow OFPAT_OUTPUT or OFPAT_ENQUEUE action |
f25d0cf3 | 2923 | * that outputs to 'port' (output to OFPP_FLOOD and OFPP_ALL doesn't count). */ |
cdbdeeda | 2924 | bool |
4e022ec0 | 2925 | ofproto_rule_has_out_port(const struct rule *rule, ofp_port_t port) |
15aaf599 | 2926 | OVS_REQUIRES(ofproto_mutex) |
064af421 | 2927 | { |
06a0f3e2 BP |
2928 | if (port == OFPP_ANY) { |
2929 | return true; | |
2930 | } else { | |
2931 | const struct rule_actions *actions = rule_get_actions(rule); | |
2932 | return ofpacts_output_to_port(actions->ofpacts, | |
2933 | actions->ofpacts_len, port); | |
2934 | } | |
064af421 BP |
2935 | } |
2936 | ||
7395c052 | 2937 | /* Returns true if 'rule' has group and equals group_id. */ |
74e79b7c | 2938 | static bool |
7395c052 | 2939 | ofproto_rule_has_out_group(const struct rule *rule, uint32_t group_id) |
15aaf599 | 2940 | OVS_REQUIRES(ofproto_mutex) |
7395c052 | 2941 | { |
06a0f3e2 BP |
2942 | if (group_id == OFPG_ANY) { |
2943 | return true; | |
2944 | } else { | |
2945 | const struct rule_actions *actions = rule_get_actions(rule); | |
2946 | return ofpacts_output_to_group(actions->ofpacts, | |
2947 | actions->ofpacts_len, group_id); | |
2948 | } | |
7395c052 NZ |
2949 | } |
2950 | ||
35412852 BP |
2951 | static void |
2952 | rule_execute_destroy(struct rule_execute *e) | |
eedc0097 | 2953 | { |
35412852 BP |
2954 | ofproto_rule_unref(e->rule); |
2955 | list_remove(&e->list_node); | |
2956 | free(e); | |
2957 | } | |
eedc0097 | 2958 | |
35412852 BP |
2959 | /* Executes all "rule_execute" operations queued up in ofproto->rule_executes, |
2960 | * by passing them to the ofproto provider. */ | |
2961 | static void | |
2962 | run_rule_executes(struct ofproto *ofproto) | |
15aaf599 | 2963 | OVS_EXCLUDED(ofproto_mutex) |
35412852 BP |
2964 | { |
2965 | struct rule_execute *e, *next; | |
ca6ba700 | 2966 | struct ovs_list executes; |
35412852 BP |
2967 | |
2968 | guarded_list_pop_all(&ofproto->rule_executes, &executes); | |
2969 | LIST_FOR_EACH_SAFE (e, next, list_node, &executes) { | |
35412852 BP |
2970 | struct flow flow; |
2971 | ||
cf62fa4c | 2972 | flow_extract(e->packet, &flow); |
b5e7e61a | 2973 | flow.in_port.ofp_port = e->in_port; |
35412852 BP |
2974 | ofproto->ofproto_class->rule_execute(e->rule, &flow, e->packet); |
2975 | ||
2976 | rule_execute_destroy(e); | |
2977 | } | |
2978 | } | |
2979 | ||
2980 | /* Destroys and discards all "rule_execute" operations queued up in | |
2981 | * ofproto->rule_executes. */ | |
2982 | static void | |
2983 | destroy_rule_executes(struct ofproto *ofproto) | |
2984 | { | |
2985 | struct rule_execute *e, *next; | |
ca6ba700 | 2986 | struct ovs_list executes; |
35412852 BP |
2987 | |
2988 | guarded_list_pop_all(&ofproto->rule_executes, &executes); | |
2989 | LIST_FOR_EACH_SAFE (e, next, list_node, &executes) { | |
cf62fa4c | 2990 | dp_packet_delete(e->packet); |
35412852 BP |
2991 | rule_execute_destroy(e); |
2992 | } | |
350a665f BP |
2993 | } |
2994 | ||
adcf00ba | 2995 | static bool |
834fe5cb | 2996 | rule_is_readonly(const struct rule *rule) |
5c67e4af | 2997 | { |
834fe5cb BP |
2998 | const struct oftable *table = &rule->ofproto->tables[rule->table_id]; |
2999 | return (table->flags & OFTABLE_READONLY) != 0; | |
5c67e4af | 3000 | } |
fa066f01 | 3001 | \f |
35f48b8b BP |
3002 | static uint32_t |
3003 | hash_learned_cookie(ovs_be64 cookie_, uint8_t table_id) | |
3004 | { | |
3005 | uint64_t cookie = (OVS_FORCE uint64_t) cookie_; | |
3006 | return hash_3words(cookie, cookie >> 32, table_id); | |
3007 | } | |
3008 | ||
3009 | static void | |
3010 | learned_cookies_update_one__(struct ofproto *ofproto, | |
3011 | const struct ofpact_learn *learn, | |
ca6ba700 | 3012 | int delta, struct ovs_list *dead_cookies) |
35f48b8b BP |
3013 | OVS_REQUIRES(ofproto_mutex) |
3014 | { | |
3015 | uint32_t hash = hash_learned_cookie(learn->cookie, learn->table_id); | |
3016 | struct learned_cookie *c; | |
3017 | ||
3018 | HMAP_FOR_EACH_WITH_HASH (c, u.hmap_node, hash, &ofproto->learned_cookies) { | |
3019 | if (c->cookie == learn->cookie && c->table_id == learn->table_id) { | |
3020 | c->n += delta; | |
3021 | ovs_assert(c->n >= 0); | |
3022 | ||
3023 | if (!c->n) { | |
3024 | hmap_remove(&ofproto->learned_cookies, &c->u.hmap_node); | |
3025 | list_push_back(dead_cookies, &c->u.list_node); | |
3026 | } | |
3027 | ||
3028 | return; | |
3029 | } | |
3030 | } | |
3031 | ||
3032 | ovs_assert(delta > 0); | |
3033 | c = xmalloc(sizeof *c); | |
3034 | hmap_insert(&ofproto->learned_cookies, &c->u.hmap_node, hash); | |
3035 | c->cookie = learn->cookie; | |
3036 | c->table_id = learn->table_id; | |
3037 | c->n = delta; | |
3038 | } | |
3039 | ||
3040 | static const struct ofpact_learn * | |
3041 | next_learn_with_delete(const struct rule_actions *actions, | |
3042 | const struct ofpact_learn *start) | |
3043 | { | |
3044 | const struct ofpact *pos; | |
3045 | ||
3046 | for (pos = start ? ofpact_next(&start->ofpact) : actions->ofpacts; | |
3047 | pos < ofpact_end(actions->ofpacts, actions->ofpacts_len); | |
3048 | pos = ofpact_next(pos)) { | |
3049 | if (pos->type == OFPACT_LEARN) { | |
3050 | const struct ofpact_learn *learn = ofpact_get_LEARN(pos); | |
3051 | if (learn->flags & NX_LEARN_F_DELETE_LEARNED) { | |
3052 | return learn; | |
3053 | } | |
3054 | } | |
3055 | } | |
3056 | ||
3057 | return NULL; | |
3058 | } | |
3059 | ||
3060 | static void | |
3061 | learned_cookies_update__(struct ofproto *ofproto, | |
3062 | const struct rule_actions *actions, | |
ca6ba700 | 3063 | int delta, struct ovs_list *dead_cookies) |
35f48b8b BP |
3064 | OVS_REQUIRES(ofproto_mutex) |
3065 | { | |
3066 | if (actions->has_learn_with_delete) { | |
3067 | const struct ofpact_learn *learn; | |
3068 | ||
3069 | for (learn = next_learn_with_delete(actions, NULL); learn; | |
3070 | learn = next_learn_with_delete(actions, learn)) { | |
3071 | learned_cookies_update_one__(ofproto, learn, delta, dead_cookies); | |
3072 | } | |
3073 | } | |
3074 | } | |
3075 | ||
3076 | static void | |
3077 | learned_cookies_inc(struct ofproto *ofproto, | |
3078 | const struct rule_actions *actions) | |
3079 | OVS_REQUIRES(ofproto_mutex) | |
3080 | { | |
3081 | learned_cookies_update__(ofproto, actions, +1, NULL); | |
3082 | } | |
3083 | ||
3084 | static void | |
3085 | learned_cookies_dec(struct ofproto *ofproto, | |
3086 | const struct rule_actions *actions, | |
ca6ba700 | 3087 | struct ovs_list *dead_cookies) |
35f48b8b BP |
3088 | OVS_REQUIRES(ofproto_mutex) |
3089 | { | |
3090 | learned_cookies_update__(ofproto, actions, -1, dead_cookies); | |
3091 | } | |
3092 | ||
3093 | static void | |
ca6ba700 | 3094 | learned_cookies_flush(struct ofproto *ofproto, struct ovs_list *dead_cookies) |
35f48b8b BP |
3095 | OVS_REQUIRES(ofproto_mutex) |
3096 | { | |
5f03c983 | 3097 | struct learned_cookie *c; |
35f48b8b | 3098 | |
5f03c983 | 3099 | LIST_FOR_EACH_POP (c, u.list_node, dead_cookies) { |
35f48b8b BP |
3100 | struct rule_criteria criteria; |
3101 | struct rule_collection rules; | |
3102 | struct match match; | |
3103 | ||
3104 | match_init_catchall(&match); | |
2b7b1427 | 3105 | rule_criteria_init(&criteria, c->table_id, &match, 0, CLS_MAX_VERSION, |
35f48b8b BP |
3106 | c->cookie, OVS_BE64_MAX, OFPP_ANY, OFPG_ANY); |
3107 | rule_criteria_require_rw(&criteria, false); | |
3108 | collect_rules_loose(ofproto, &criteria, &rules); | |
35f48b8b | 3109 | rule_criteria_destroy(&criteria); |
39c94593 | 3110 | delete_flows__(&rules, OFPRR_DELETE, NULL); |
35f48b8b | 3111 | |
35f48b8b BP |
3112 | free(c); |
3113 | } | |
3114 | } | |
3115 | \f | |
90bf1e07 | 3116 | static enum ofperr |
d1e2cf21 | 3117 | handle_echo_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3118 | { |
b0421aa2 | 3119 | ofconn_send_reply(ofconn, make_echo_reply(oh)); |
064af421 | 3120 | return 0; |
064af421 BP |
3121 | } |
3122 | ||
3c1bb396 BP |
3123 | static void |
3124 | query_tables(struct ofproto *ofproto, | |
3125 | struct ofputil_table_features **featuresp, | |
3126 | struct ofputil_table_stats **statsp) | |
3127 | { | |
178742f9 BP |
3128 | struct mf_bitmap rw_fields = oxm_writable_fields(); |
3129 | struct mf_bitmap match = oxm_matchable_fields(); | |
3130 | struct mf_bitmap mask = oxm_maskable_fields(); | |
3c1bb396 BP |
3131 | |
3132 | struct ofputil_table_features *features; | |
3133 | struct ofputil_table_stats *stats; | |
3134 | int i; | |
3135 | ||
3c1bb396 BP |
3136 | features = *featuresp = xcalloc(ofproto->n_tables, sizeof *features); |
3137 | for (i = 0; i < ofproto->n_tables; i++) { | |
3138 | struct ofputil_table_features *f = &features[i]; | |
3139 | ||
3140 | f->table_id = i; | |
3141 | sprintf(f->name, "table%d", i); | |
3142 | f->metadata_match = OVS_BE64_MAX; | |
3143 | f->metadata_write = OVS_BE64_MAX; | |
afcea9ea | 3144 | atomic_read_relaxed(&ofproto->tables[i].miss_config, &f->miss_config); |
3c1bb396 BP |
3145 | f->max_entries = 1000000; |
3146 | ||
5dc7516b BP |
3147 | bool more_tables = false; |
3148 | for (int j = i + 1; j < ofproto->n_tables; j++) { | |
3149 | if (!(ofproto->tables[j].flags & OFTABLE_HIDDEN)) { | |
3150 | bitmap_set1(f->nonmiss.next, j); | |
3151 | more_tables = true; | |
3152 | } | |
3153 | } | |
3c1bb396 | 3154 | f->nonmiss.instructions = (1u << N_OVS_INSTRUCTIONS) - 1; |
5dc7516b | 3155 | if (!more_tables) { |
3c1bb396 BP |
3156 | f->nonmiss.instructions &= ~(1u << OVSINST_OFPIT11_GOTO_TABLE); |
3157 | } | |
3158 | f->nonmiss.write.ofpacts = (UINT64_C(1) << N_OFPACTS) - 1; | |
3159 | f->nonmiss.write.set_fields = rw_fields; | |
3160 | f->nonmiss.apply = f->nonmiss.write; | |
3161 | f->miss = f->nonmiss; | |
3162 | ||
3163 | f->match = match; | |
3164 | f->mask = mask; | |
3165 | f->wildcard = match; | |
3166 | } | |
3167 | ||
3168 | if (statsp) { | |
3169 | stats = *statsp = xcalloc(ofproto->n_tables, sizeof *stats); | |
3170 | for (i = 0; i < ofproto->n_tables; i++) { | |
3171 | struct ofputil_table_stats *s = &stats[i]; | |
3c1bb396 BP |
3172 | |
3173 | s->table_id = i; | |
d79e3d70 | 3174 | s->active_count = ofproto->tables[i].n_flows; |
3fbbcba7 BP |
3175 | if (i == 0) { |
3176 | s->active_count -= connmgr_count_hidden_rules( | |
3177 | ofproto->connmgr); | |
3178 | } | |
3c1bb396 BP |
3179 | } |
3180 | } else { | |
3181 | stats = NULL; | |
3182 | } | |
3183 | ||
3184 | ofproto->ofproto_class->query_tables(ofproto, features, stats); | |
3185 | ||
3186 | for (i = 0; i < ofproto->n_tables; i++) { | |
3187 | const struct oftable *table = &ofproto->tables[i]; | |
3188 | struct ofputil_table_features *f = &features[i]; | |
3189 | ||
3190 | if (table->name) { | |
3191 | ovs_strzcpy(f->name, table->name, sizeof f->name); | |
3192 | } | |
3193 | ||
3194 | if (table->max_flows < f->max_entries) { | |
3195 | f->max_entries = table->max_flows; | |
3196 | } | |
3197 | } | |
3198 | } | |
3199 | ||
3200 | static void | |
3201 | query_switch_features(struct ofproto *ofproto, | |
3202 | bool *arp_match_ip, uint64_t *ofpacts) | |
3203 | { | |
3204 | struct ofputil_table_features *features, *f; | |
3205 | ||
3206 | *arp_match_ip = false; | |
3207 | *ofpacts = 0; | |
3208 | ||
3209 | query_tables(ofproto, &features, NULL); | |
3210 | for (f = features; f < &features[ofproto->n_tables]; f++) { | |
3211 | *ofpacts |= f->nonmiss.apply.ofpacts | f->miss.apply.ofpacts; | |
3212 | if (bitmap_is_set(f->match.bm, MFF_ARP_SPA) || | |
3213 | bitmap_is_set(f->match.bm, MFF_ARP_TPA)) { | |
3214 | *arp_match_ip = true; | |
3215 | } | |
3216 | } | |
3217 | free(features); | |
3218 | ||
3219 | /* Sanity check. */ | |
3220 | ovs_assert(*ofpacts & (UINT64_C(1) << OFPACT_OUTPUT)); | |
3221 | } | |
3222 | ||
90bf1e07 | 3223 | static enum ofperr |
d1e2cf21 | 3224 | handle_features_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3225 | { |
64ff1d96 | 3226 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
9e1fd49b | 3227 | struct ofputil_switch_features features; |
064af421 | 3228 | struct ofport *port; |
6c1491fb | 3229 | bool arp_match_ip; |
9e1fd49b | 3230 | struct ofpbuf *b; |
064af421 | 3231 | |
3c1bb396 | 3232 | query_switch_features(ofproto, &arp_match_ip, &features.ofpacts); |
064af421 | 3233 | |
9e1fd49b BP |
3234 | features.datapath_id = ofproto->datapath_id; |
3235 | features.n_buffers = pktbuf_capacity(); | |
adcf00ba | 3236 | features.n_tables = ofproto_get_n_visible_tables(ofproto); |
9e1fd49b | 3237 | features.capabilities = (OFPUTIL_C_FLOW_STATS | OFPUTIL_C_TABLE_STATS | |
4efe455d BP |
3238 | OFPUTIL_C_PORT_STATS | OFPUTIL_C_QUEUE_STATS | |
3239 | OFPUTIL_C_GROUP_STATS); | |
6c1491fb | 3240 | if (arp_match_ip) { |
9e1fd49b | 3241 | features.capabilities |= OFPUTIL_C_ARP_MATCH_IP; |
6c1491fb | 3242 | } |
2e1ae200 JR |
3243 | /* FIXME: Fill in proper features.auxiliary_id for auxiliary connections */ |
3244 | features.auxiliary_id = 0; | |
9e1fd49b BP |
3245 | b = ofputil_encode_switch_features(&features, ofconn_get_protocol(ofconn), |
3246 | oh->xid); | |
64ff1d96 | 3247 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
9e1fd49b | 3248 | ofputil_put_switch_features_port(&port->pp, b); |
064af421 | 3249 | } |
064af421 | 3250 | |
9e1fd49b | 3251 | ofconn_send_reply(ofconn, b); |
064af421 BP |
3252 | return 0; |
3253 | } | |
064af421 | 3254 | |
90bf1e07 | 3255 | static enum ofperr |
d1e2cf21 | 3256 | handle_get_config_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3257 | { |
64ff1d96 | 3258 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
064af421 | 3259 | struct ofp_switch_config *osc; |
f0fd1a17 | 3260 | enum ofp_config_flags flags; |
7257b535 | 3261 | struct ofpbuf *buf; |
959a2ecd | 3262 | |
064af421 | 3263 | /* Send reply. */ |
982697a4 BP |
3264 | buf = ofpraw_alloc_reply(OFPRAW_OFPT_GET_CONFIG_REPLY, oh, 0); |
3265 | osc = ofpbuf_put_uninit(buf, sizeof *osc); | |
f0fd1a17 | 3266 | flags = ofproto->frag_handling; |
2e1ae200 JR |
3267 | /* OFPC_INVALID_TTL_TO_CONTROLLER is deprecated in OF 1.3 */ |
3268 | if (oh->version < OFP13_VERSION | |
3269 | && ofconn_get_invalid_ttl_to_controller(ofconn)) { | |
f0fd1a17 PS |
3270 | flags |= OFPC_INVALID_TTL_TO_CONTROLLER; |
3271 | } | |
3272 | osc->flags = htons(flags); | |
810605a2 | 3273 | osc->miss_send_len = htons(ofconn_get_miss_send_len(ofconn)); |
b0421aa2 | 3274 | ofconn_send_reply(ofconn, buf); |
2d70a31a | 3275 | |
064af421 BP |
3276 | return 0; |
3277 | } | |
064af421 | 3278 | |
90bf1e07 | 3279 | static enum ofperr |
982697a4 | 3280 | handle_set_config(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3281 | { |
982697a4 | 3282 | const struct ofp_switch_config *osc = ofpmsg_body(oh); |
64ff1d96 | 3283 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
d1e2cf21 | 3284 | uint16_t flags = ntohs(osc->flags); |
2d70a31a | 3285 | |
7257b535 | 3286 | if (ofconn_get_type(ofconn) != OFCONN_PRIMARY |
f4f1ea7e | 3287 | || ofconn_get_role(ofconn) != OFPCR12_ROLE_SLAVE) { |
7257b535 BP |
3288 | enum ofp_config_flags cur = ofproto->frag_handling; |
3289 | enum ofp_config_flags next = flags & OFPC_FRAG_MASK; | |
3290 | ||
cb22974d | 3291 | ovs_assert((cur & OFPC_FRAG_MASK) == cur); |
7257b535 BP |
3292 | if (cur != next) { |
3293 | if (ofproto->ofproto_class->set_frag_handling(ofproto, next)) { | |
3294 | ofproto->frag_handling = next; | |
3295 | } else { | |
3296 | VLOG_WARN_RL(&rl, "%s: unsupported fragment handling mode %s", | |
3297 | ofproto->name, | |
3298 | ofputil_frag_handling_to_string(next)); | |
3299 | } | |
064af421 BP |
3300 | } |
3301 | } | |
2e1ae200 | 3302 | /* OFPC_INVALID_TTL_TO_CONTROLLER is deprecated in OF 1.3 */ |
f0fd1a17 | 3303 | ofconn_set_invalid_ttl_to_controller(ofconn, |
2e1ae200 JR |
3304 | (oh->version < OFP13_VERSION |
3305 | && flags & OFPC_INVALID_TTL_TO_CONTROLLER)); | |
ebe482fd | 3306 | |
810605a2 | 3307 | ofconn_set_miss_send_len(ofconn, ntohs(osc->miss_send_len)); |
0ad9b732 | 3308 | |
064af421 | 3309 | return 0; |
064af421 BP |
3310 | } |
3311 | ||
9deba63b | 3312 | /* Checks whether 'ofconn' is a slave controller. If so, returns an OpenFlow |
90bf1e07 BP |
3313 | * error message code for the caller to propagate upward. Otherwise, returns |
3314 | * 0. | |
3315 | * | |
3316 | * The log message mentions 'msg_type'. */ | |
3317 | static enum ofperr | |
3318 | reject_slave_controller(struct ofconn *ofconn) | |
9deba63b | 3319 | { |
1ce0a5fa | 3320 | if (ofconn_get_type(ofconn) == OFCONN_PRIMARY |
f4f1ea7e | 3321 | && ofconn_get_role(ofconn) == OFPCR12_ROLE_SLAVE) { |
20e4ec1a | 3322 | return OFPERR_OFPBRC_IS_SLAVE; |
9deba63b BP |
3323 | } else { |
3324 | return 0; | |
3325 | } | |
3326 | } | |
3327 | ||
7e9f8266 BP |
3328 | /* Checks that the 'ofpacts_len' bytes of action in 'ofpacts' are appropriate |
3329 | * for 'ofproto': | |
3330 | * | |
3331 | * - If they use a meter, then 'ofproto' has that meter configured. | |
3332 | * | |
3333 | * - If they use any groups, then 'ofproto' has that group configured. | |
3334 | * | |
3335 | * Returns 0 if successful, otherwise an OpenFlow error. */ | |
9cae45dc JR |
3336 | static enum ofperr |
3337 | ofproto_check_ofpacts(struct ofproto *ofproto, | |
7e9f8266 | 3338 | const struct ofpact ofpacts[], size_t ofpacts_len) |
9cae45dc | 3339 | { |
84d68566 | 3340 | const struct ofpact *a; |
9cae45dc JR |
3341 | uint32_t mid; |
3342 | ||
7e9f8266 BP |
3343 | mid = ofpacts_get_meter(ofpacts, ofpacts_len); |
3344 | if (mid && get_provider_meter_id(ofproto, mid) == UINT32_MAX) { | |
3345 | return OFPERR_OFPMMFC_INVALID_METER; | |
9cae45dc JR |
3346 | } |
3347 | ||
84d68566 | 3348 | OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) { |
7e9f8266 BP |
3349 | if (a->type == OFPACT_GROUP |
3350 | && !ofproto_group_exists(ofproto, ofpact_get_GROUP(a)->group_id)) { | |
3351 | return OFPERR_OFPBAC_BAD_OUT_GROUP; | |
84d68566 SH |
3352 | } |
3353 | } | |
3354 | ||
9cae45dc JR |
3355 | return 0; |
3356 | } | |
3357 | ||
90bf1e07 | 3358 | static enum ofperr |
982697a4 | 3359 | handle_packet_out(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3360 | { |
64ff1d96 | 3361 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
c6a93eb7 | 3362 | struct ofputil_packet_out po; |
cf62fa4c | 3363 | struct dp_packet *payload; |
f25d0cf3 BP |
3364 | uint64_t ofpacts_stub[1024 / 8]; |
3365 | struct ofpbuf ofpacts; | |
ae412e7d | 3366 | struct flow flow; |
90bf1e07 | 3367 | enum ofperr error; |
064af421 | 3368 | |
ac51afaf BP |
3369 | COVERAGE_INC(ofproto_packet_out); |
3370 | ||
76589937 | 3371 | error = reject_slave_controller(ofconn); |
9deba63b | 3372 | if (error) { |
f25d0cf3 | 3373 | goto exit; |
9deba63b BP |
3374 | } |
3375 | ||
c6a93eb7 | 3376 | /* Decode message. */ |
f25d0cf3 | 3377 | ofpbuf_use_stub(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); |
982697a4 | 3378 | error = ofputil_decode_packet_out(&po, oh, &ofpacts); |
064af421 | 3379 | if (error) { |
f25d0cf3 | 3380 | goto exit_free_ofpacts; |
064af421 | 3381 | } |
430dbb14 | 3382 | if (ofp_to_u16(po.in_port) >= p->max_ports |
4e022ec0 | 3383 | && ofp_to_u16(po.in_port) < ofp_to_u16(OFPP_MAX)) { |
2e1bfcb6 | 3384 | error = OFPERR_OFPBRC_BAD_PORT; |
91858960 BP |
3385 | goto exit_free_ofpacts; |
3386 | } | |
064af421 | 3387 | |
ac51afaf | 3388 | /* Get payload. */ |
c6a93eb7 BP |
3389 | if (po.buffer_id != UINT32_MAX) { |
3390 | error = ofconn_pktbuf_retrieve(ofconn, po.buffer_id, &payload, NULL); | |
3391 | if (error || !payload) { | |
f25d0cf3 | 3392 | goto exit_free_ofpacts; |
064af421 | 3393 | } |
064af421 | 3394 | } else { |
bb622f82 | 3395 | /* Ensure that the L3 header is 32-bit aligned. */ |
cf62fa4c | 3396 | payload = dp_packet_clone_data_with_headroom(po.packet, po.packet_len, 2); |
e1154f71 BP |
3397 | } |
3398 | ||
548de4dd | 3399 | /* Verify actions against packet, then send packet if successful. */ |
cf62fa4c | 3400 | flow_extract(payload, &flow); |
b5e7e61a | 3401 | flow.in_port.ofp_port = po.in_port; |
7e9f8266 | 3402 | error = ofproto_check_ofpacts(p, po.ofpacts, po.ofpacts_len); |
548de4dd BP |
3403 | if (!error) { |
3404 | error = p->ofproto_class->packet_out(p, payload, &flow, | |
3405 | po.ofpacts, po.ofpacts_len); | |
3406 | } | |
cf62fa4c | 3407 | dp_packet_delete(payload); |
abe529af | 3408 | |
f25d0cf3 BP |
3409 | exit_free_ofpacts: |
3410 | ofpbuf_uninit(&ofpacts); | |
3411 | exit: | |
abe529af | 3412 | return error; |
064af421 BP |
3413 | } |
3414 | ||
3415 | static void | |
2a6f78e0 | 3416 | update_port_config(struct ofconn *ofconn, struct ofport *port, |
9e1fd49b BP |
3417 | enum ofputil_port_config config, |
3418 | enum ofputil_port_config mask) | |
064af421 | 3419 | { |
2a6f78e0 | 3420 | enum ofputil_port_config toggle = (config ^ port->pp.config) & mask; |
abe529af | 3421 | |
2a6f78e0 BP |
3422 | if (toggle & OFPUTIL_PC_PORT_DOWN |
3423 | && (config & OFPUTIL_PC_PORT_DOWN | |
3424 | ? netdev_turn_flags_off(port->netdev, NETDEV_UP, NULL) | |
3425 | : netdev_turn_flags_on(port->netdev, NETDEV_UP, NULL))) { | |
3426 | /* We tried to bring the port up or down, but it failed, so don't | |
3427 | * update the "down" bit. */ | |
9e1fd49b | 3428 | toggle &= ~OFPUTIL_PC_PORT_DOWN; |
064af421 | 3429 | } |
abe529af | 3430 | |
2a6f78e0 BP |
3431 | if (toggle) { |
3432 | enum ofputil_port_config old_config = port->pp.config; | |
3433 | port->pp.config ^= toggle; | |
abe529af | 3434 | port->ofproto->ofproto_class->port_reconfigured(port, old_config); |
2a6f78e0 BP |
3435 | connmgr_send_port_status(port->ofproto->connmgr, ofconn, &port->pp, |
3436 | OFPPR_MODIFY); | |
064af421 BP |
3437 | } |
3438 | } | |
3439 | ||
90bf1e07 | 3440 | static enum ofperr |
1c38055d JR |
3441 | port_mod_start(struct ofconn *ofconn, struct ofputil_port_mod *pm, |
3442 | struct ofport **port) | |
064af421 | 3443 | { |
64ff1d96 | 3444 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
1c38055d JR |
3445 | |
3446 | *port = ofproto_get_port(p, pm->port_no); | |
3447 | if (!*port) { | |
3448 | return OFPERR_OFPPMFC_BAD_PORT; | |
3449 | } | |
3450 | if (!eth_addr_equals((*port)->pp.hw_addr, pm->hw_addr)) { | |
3451 | return OFPERR_OFPPMFC_BAD_HW_ADDR; | |
3452 | } | |
3453 | return 0; | |
3454 | } | |
3455 | ||
3456 | static void | |
3457 | port_mod_finish(struct ofconn *ofconn, struct ofputil_port_mod *pm, | |
3458 | struct ofport *port) | |
3459 | { | |
3460 | update_port_config(ofconn, port, pm->config, pm->mask); | |
3461 | if (pm->advertise) { | |
3462 | netdev_set_advertisements(port->netdev, pm->advertise); | |
3463 | } | |
3464 | } | |
3465 | ||
3466 | static enum ofperr | |
3467 | handle_port_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
3468 | { | |
9e1fd49b | 3469 | struct ofputil_port_mod pm; |
064af421 | 3470 | struct ofport *port; |
9e1fd49b | 3471 | enum ofperr error; |
064af421 | 3472 | |
76589937 | 3473 | error = reject_slave_controller(ofconn); |
9deba63b BP |
3474 | if (error) { |
3475 | return error; | |
3476 | } | |
064af421 | 3477 | |
18cc69d9 | 3478 | error = ofputil_decode_port_mod(oh, &pm, false); |
9e1fd49b BP |
3479 | if (error) { |
3480 | return error; | |
3481 | } | |
3482 | ||
1c38055d JR |
3483 | error = port_mod_start(ofconn, &pm, &port); |
3484 | if (!error) { | |
3485 | port_mod_finish(ofconn, &pm, port); | |
064af421 | 3486 | } |
1c38055d | 3487 | return error; |
064af421 BP |
3488 | } |
3489 | ||
90bf1e07 | 3490 | static enum ofperr |
3269c562 | 3491 | handle_desc_stats_request(struct ofconn *ofconn, |
982697a4 | 3492 | const struct ofp_header *request) |
064af421 | 3493 | { |
061bfea4 BP |
3494 | static const char *default_mfr_desc = "Nicira, Inc."; |
3495 | static const char *default_hw_desc = "Open vSwitch"; | |
3496 | static const char *default_sw_desc = VERSION; | |
3497 | static const char *default_serial_desc = "None"; | |
3498 | static const char *default_dp_desc = "None"; | |
3499 | ||
64ff1d96 | 3500 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 BP |
3501 | struct ofp_desc_stats *ods; |
3502 | struct ofpbuf *msg; | |
3503 | ||
982697a4 BP |
3504 | msg = ofpraw_alloc_stats_reply(request, 0); |
3505 | ods = ofpbuf_put_zeros(msg, sizeof *ods); | |
061bfea4 BP |
3506 | ovs_strlcpy(ods->mfr_desc, p->mfr_desc ? p->mfr_desc : default_mfr_desc, |
3507 | sizeof ods->mfr_desc); | |
3508 | ovs_strlcpy(ods->hw_desc, p->hw_desc ? p->hw_desc : default_hw_desc, | |
3509 | sizeof ods->hw_desc); | |
3510 | ovs_strlcpy(ods->sw_desc, p->sw_desc ? p->sw_desc : default_sw_desc, | |
3511 | sizeof ods->sw_desc); | |
3512 | ovs_strlcpy(ods->serial_num, | |
3513 | p->serial_desc ? p->serial_desc : default_serial_desc, | |
3514 | sizeof ods->serial_num); | |
3515 | ovs_strlcpy(ods->dp_desc, p->dp_desc ? p->dp_desc : default_dp_desc, | |
3516 | sizeof ods->dp_desc); | |
b0421aa2 | 3517 | ofconn_send_reply(ofconn, msg); |
064af421 BP |
3518 | |
3519 | return 0; | |
3520 | } | |
3521 | ||
90bf1e07 | 3522 | static enum ofperr |
3269c562 | 3523 | handle_table_stats_request(struct ofconn *ofconn, |
982697a4 | 3524 | const struct ofp_header *request) |
064af421 | 3525 | { |
3c1bb396 BP |
3526 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
3527 | struct ofputil_table_features *features; | |
08d1e234 | 3528 | struct ofputil_table_stats *stats; |
3c1bb396 | 3529 | struct ofpbuf *reply; |
6c1491fb | 3530 | size_t i; |
064af421 | 3531 | |
3c1bb396 | 3532 | query_tables(ofproto, &features, &stats); |
254750ce | 3533 | |
3c1bb396 BP |
3534 | reply = ofputil_encode_table_stats_reply(request); |
3535 | for (i = 0; i < ofproto->n_tables; i++) { | |
3536 | if (!(ofproto->tables[i].flags & OFTABLE_HIDDEN)) { | |
3537 | ofputil_append_table_stats_reply(reply, &stats[i], &features[i]); | |
254750ce BP |
3538 | } |
3539 | } | |
3c1bb396 | 3540 | ofconn_send_reply(ofconn, reply); |
254750ce | 3541 | |
3c1bb396 | 3542 | free(features); |
08d1e234 | 3543 | free(stats); |
307975da | 3544 | |
064af421 BP |
3545 | return 0; |
3546 | } | |
3547 | ||
3c4e10fb BP |
3548 | static enum ofperr |
3549 | handle_table_features_request(struct ofconn *ofconn, | |
3550 | const struct ofp_header *request) | |
3551 | { | |
3552 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
3553 | struct ofputil_table_features *features; | |
ca6ba700 | 3554 | struct ovs_list replies; |
3c4e10fb BP |
3555 | struct ofpbuf msg; |
3556 | size_t i; | |
3557 | ||
3558 | ofpbuf_use_const(&msg, request, ntohs(request->length)); | |
3559 | ofpraw_pull_assert(&msg); | |
6fd6ed71 | 3560 | if (msg.size || ofpmp_more(request)) { |
3c4e10fb BP |
3561 | return OFPERR_OFPTFFC_EPERM; |
3562 | } | |
3563 | ||
3564 | query_tables(ofproto, &features, NULL); | |
3565 | ||
3566 | ofpmp_init(&replies, request); | |
3567 | for (i = 0; i < ofproto->n_tables; i++) { | |
3568 | if (!(ofproto->tables[i].flags & OFTABLE_HIDDEN)) { | |
3569 | ofputil_append_table_features_reply(&features[i], &replies); | |
3570 | } | |
3571 | } | |
3572 | ofconn_send_replies(ofconn, &replies); | |
3573 | ||
3574 | free(features); | |
3575 | ||
3576 | return 0; | |
3577 | } | |
3578 | ||
03c72922 BP |
3579 | /* This function queries the database for dumping table-desc. */ |
3580 | static void | |
3581 | query_tables_desc(struct ofproto *ofproto, struct ofputil_table_desc **descp) | |
3582 | { | |
3583 | struct ofputil_table_desc *table_desc; | |
3584 | size_t i; | |
3585 | ||
3586 | table_desc = *descp = xcalloc(ofproto->n_tables, sizeof *table_desc); | |
3587 | for (i = 0; i < ofproto->n_tables; i++) { | |
3588 | struct ofputil_table_desc *td = &table_desc[i]; | |
3589 | td->table_id = i; | |
3590 | td->eviction = (ofproto->tables[i].eviction & EVICTION_OPENFLOW | |
3591 | ? OFPUTIL_TABLE_EVICTION_ON | |
3592 | : OFPUTIL_TABLE_EVICTION_OFF); | |
3593 | td->eviction_flags = OFPROTO_EVICTION_FLAGS; | |
3594 | } | |
3595 | } | |
3596 | ||
3597 | /* Function to handle dump-table-desc request. */ | |
3598 | static enum ofperr | |
3599 | handle_table_desc_request(struct ofconn *ofconn, | |
3600 | const struct ofp_header *request) | |
3601 | { | |
3602 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
3603 | struct ofputil_table_desc *table_desc; | |
3604 | struct ovs_list replies; | |
3605 | size_t i; | |
3606 | ||
3607 | query_tables_desc(ofproto, &table_desc); | |
3608 | ofpmp_init(&replies, request); | |
3609 | for (i = 0; i < ofproto->n_tables; i++) { | |
3610 | if (!(ofproto->tables[i].flags & OFTABLE_HIDDEN)) { | |
3611 | ofputil_append_table_desc_reply(&table_desc[i], &replies, | |
3612 | request->version); | |
3613 | } | |
3614 | } | |
3615 | ofconn_send_replies(ofconn, &replies); | |
3616 | free(table_desc); | |
3617 | return 0; | |
3618 | } | |
3619 | ||
abaad8cf | 3620 | static void |
ca6ba700 | 3621 | append_port_stat(struct ofport *port, struct ovs_list *replies) |
abaad8cf | 3622 | { |
f8e4867e | 3623 | struct ofputil_port_stats ops = { .port_no = port->pp.port_no }; |
abaad8cf | 3624 | |
65e0be10 BP |
3625 | calc_duration(port->created, time_msec(), |
3626 | &ops.duration_sec, &ops.duration_nsec); | |
3627 | ||
d295e8e9 JP |
3628 | /* Intentionally ignore return value, since errors will set |
3629 | * 'stats' to all-1s, which is correct for OpenFlow, and | |
abaad8cf | 3630 | * netdev_get_stats() will log errors. */ |
f8e4867e SH |
3631 | ofproto_port_get_stats(port, &ops.stats); |
3632 | ||
3633 | ofputil_append_port_stat(replies, &ops); | |
abaad8cf JP |
3634 | } |
3635 | ||
70ae4f93 BP |
3636 | static void |
3637 | handle_port_request(struct ofconn *ofconn, | |
3638 | const struct ofp_header *request, ofp_port_t port_no, | |
ca6ba700 | 3639 | void (*cb)(struct ofport *, struct ovs_list *replies)) |
064af421 | 3640 | { |
70ae4f93 | 3641 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
064af421 | 3642 | struct ofport *port; |
ca6ba700 | 3643 | struct ovs_list replies; |
064af421 | 3644 | |
982697a4 | 3645 | ofpmp_init(&replies, request); |
7f05e7ab | 3646 | if (port_no != OFPP_ANY) { |
70ae4f93 | 3647 | port = ofproto_get_port(ofproto, port_no); |
abaad8cf | 3648 | if (port) { |
70ae4f93 | 3649 | cb(port, &replies); |
abaad8cf JP |
3650 | } |
3651 | } else { | |
70ae4f93 BP |
3652 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
3653 | cb(port, &replies); | |
abaad8cf | 3654 | } |
064af421 BP |
3655 | } |
3656 | ||
63f2140a | 3657 | ofconn_send_replies(ofconn, &replies); |
70ae4f93 BP |
3658 | } |
3659 | ||
3660 | static enum ofperr | |
3661 | handle_port_stats_request(struct ofconn *ofconn, | |
3662 | const struct ofp_header *request) | |
3663 | { | |
3664 | ofp_port_t port_no; | |
3665 | enum ofperr error; | |
3666 | ||
3667 | error = ofputil_decode_port_stats_request(request, &port_no); | |
3668 | if (!error) { | |
3669 | handle_port_request(ofconn, request, port_no, append_port_stat); | |
3670 | } | |
3671 | return error; | |
3672 | } | |
3673 | ||
3674 | static void | |
ca6ba700 | 3675 | append_port_desc(struct ofport *port, struct ovs_list *replies) |
70ae4f93 BP |
3676 | { |
3677 | ofputil_append_port_desc_stats_reply(&port->pp, replies); | |
064af421 BP |
3678 | } |
3679 | ||
2be393ed JP |
3680 | static enum ofperr |
3681 | handle_port_desc_stats_request(struct ofconn *ofconn, | |
982697a4 | 3682 | const struct ofp_header *request) |
2be393ed | 3683 | { |
70ae4f93 BP |
3684 | ofp_port_t port_no; |
3685 | enum ofperr error; | |
2be393ed | 3686 | |
70ae4f93 BP |
3687 | error = ofputil_decode_port_desc_stats_request(request, &port_no); |
3688 | if (!error) { | |
3689 | handle_port_request(ofconn, request, port_no, append_port_desc); | |
2be393ed | 3690 | } |
70ae4f93 | 3691 | return error; |
2be393ed JP |
3692 | } |
3693 | ||
98eaac36 JR |
3694 | static uint32_t |
3695 | hash_cookie(ovs_be64 cookie) | |
3696 | { | |
965607c8 | 3697 | return hash_uint64((OVS_FORCE uint64_t)cookie); |
98eaac36 JR |
3698 | } |
3699 | ||
3700 | static void | |
3701 | cookies_insert(struct ofproto *ofproto, struct rule *rule) | |
2c916028 | 3702 | OVS_REQUIRES(ofproto_mutex) |
98eaac36 JR |
3703 | { |
3704 | hindex_insert(&ofproto->cookies, &rule->cookie_node, | |
3705 | hash_cookie(rule->flow_cookie)); | |
3706 | } | |
3707 | ||
3708 | static void | |
3709 | cookies_remove(struct ofproto *ofproto, struct rule *rule) | |
2c916028 | 3710 | OVS_REQUIRES(ofproto_mutex) |
98eaac36 JR |
3711 | { |
3712 | hindex_remove(&ofproto->cookies, &rule->cookie_node); | |
3713 | } | |
3714 | ||
c6ebb8fb | 3715 | static void |
65e0be10 BP |
3716 | calc_duration(long long int start, long long int now, |
3717 | uint32_t *sec, uint32_t *nsec) | |
c6ebb8fb | 3718 | { |
f27f2134 | 3719 | long long int msecs = now - start; |
588cd7b5 BP |
3720 | *sec = msecs / 1000; |
3721 | *nsec = (msecs % 1000) * (1000 * 1000); | |
3722 | } | |
3723 | ||
48266274 | 3724 | /* Checks whether 'table_id' is 0xff or a valid table ID in 'ofproto'. Returns |
554764d1 SH |
3725 | * true if 'table_id' is OK, false otherwise. */ |
3726 | static bool | |
48266274 BP |
3727 | check_table_id(const struct ofproto *ofproto, uint8_t table_id) |
3728 | { | |
554764d1 | 3729 | return table_id == OFPTT_ALL || table_id < ofproto->n_tables; |
48266274 BP |
3730 | } |
3731 | ||
5c67e4af | 3732 | static struct oftable * |
d4ce8a49 | 3733 | next_visible_table(const struct ofproto *ofproto, uint8_t table_id) |
5c67e4af BP |
3734 | { |
3735 | struct oftable *table; | |
3736 | ||
3737 | for (table = &ofproto->tables[table_id]; | |
3738 | table < &ofproto->tables[ofproto->n_tables]; | |
3739 | table++) { | |
3740 | if (!(table->flags & OFTABLE_HIDDEN)) { | |
3741 | return table; | |
3742 | } | |
3743 | } | |
3744 | ||
3745 | return NULL; | |
3746 | } | |
3747 | ||
d0918789 | 3748 | static struct oftable * |
d4ce8a49 | 3749 | first_matching_table(const struct ofproto *ofproto, uint8_t table_id) |
064af421 | 3750 | { |
6c1491fb | 3751 | if (table_id == 0xff) { |
5c67e4af | 3752 | return next_visible_table(ofproto, 0); |
6c1491fb BP |
3753 | } else if (table_id < ofproto->n_tables) { |
3754 | return &ofproto->tables[table_id]; | |
a02e5331 | 3755 | } else { |
6c1491fb | 3756 | return NULL; |
a02e5331 | 3757 | } |
064af421 BP |
3758 | } |
3759 | ||
d0918789 | 3760 | static struct oftable * |
d4ce8a49 BP |
3761 | next_matching_table(const struct ofproto *ofproto, |
3762 | const struct oftable *table, uint8_t table_id) | |
6c1491fb | 3763 | { |
5c67e4af BP |
3764 | return (table_id == 0xff |
3765 | ? next_visible_table(ofproto, (table - ofproto->tables) + 1) | |
6c1491fb BP |
3766 | : NULL); |
3767 | } | |
3768 | ||
d0918789 | 3769 | /* Assigns TABLE to each oftable, in turn, that matches TABLE_ID in OFPROTO: |
6c1491fb BP |
3770 | * |
3771 | * - If TABLE_ID is 0xff, this iterates over every classifier table in | |
5c67e4af | 3772 | * OFPROTO, skipping tables marked OFTABLE_HIDDEN. |
6c1491fb BP |
3773 | * |
3774 | * - If TABLE_ID is the number of a table in OFPROTO, then the loop iterates | |
5c67e4af BP |
3775 | * only once, for that table. (This can be used to access tables marked |
3776 | * OFTABLE_HIDDEN.) | |
6c1491fb | 3777 | * |
48266274 BP |
3778 | * - Otherwise, TABLE_ID isn't valid for OFPROTO, so the loop won't be |
3779 | * entered at all. (Perhaps you should have validated TABLE_ID with | |
3780 | * check_table_id().) | |
6c1491fb BP |
3781 | * |
3782 | * All parameters are evaluated multiple times. | |
3783 | */ | |
d0918789 BP |
3784 | #define FOR_EACH_MATCHING_TABLE(TABLE, TABLE_ID, OFPROTO) \ |
3785 | for ((TABLE) = first_matching_table(OFPROTO, TABLE_ID); \ | |
3786 | (TABLE) != NULL; \ | |
3787 | (TABLE) = next_matching_table(OFPROTO, TABLE, TABLE_ID)) | |
6c1491fb | 3788 | |
a9b22b7f BP |
3789 | /* Initializes 'criteria' in a straightforward way based on the other |
3790 | * parameters. | |
3791 | * | |
dd51dae2 BP |
3792 | * By default, the criteria include flows that are read-only, on the assumption |
3793 | * that the collected flows won't be modified. Call rule_criteria_require_rw() | |
3794 | * if flows will be modified. | |
3795 | * | |
a9b22b7f BP |
3796 | * For "loose" matching, the 'priority' parameter is unimportant and may be |
3797 | * supplied as 0. */ | |
3798 | static void | |
3799 | rule_criteria_init(struct rule_criteria *criteria, uint8_t table_id, | |
18721c4a JR |
3800 | const struct match *match, int priority, |
3801 | cls_version_t version, ovs_be64 cookie, | |
3802 | ovs_be64 cookie_mask, ofp_port_t out_port, | |
3803 | uint32_t out_group) | |
a9b22b7f BP |
3804 | { |
3805 | criteria->table_id = table_id; | |
bd53aa17 JR |
3806 | cls_rule_init(&criteria->cr, match, priority); |
3807 | criteria->version = version; | |
a9b22b7f BP |
3808 | criteria->cookie = cookie; |
3809 | criteria->cookie_mask = cookie_mask; | |
3810 | criteria->out_port = out_port; | |
3811 | criteria->out_group = out_group; | |
dd51dae2 BP |
3812 | |
3813 | /* We ordinarily want to skip hidden rules, but there has to be a way for | |
3814 | * code internal to OVS to modify and delete them, so if the criteria | |
3815 | * specify a priority that can only be for a hidden flow, then allow hidden | |
3816 | * rules to be selected. (This doesn't allow OpenFlow clients to meddle | |
3817 | * with hidden flows because OpenFlow uses only a 16-bit field to specify | |
3818 | * priority.) */ | |
3819 | criteria->include_hidden = priority > UINT16_MAX; | |
3820 | ||
3821 | /* We assume that the criteria are being used to collect flows for reading | |
3822 | * but not modification. Thus, we should collect read-only flows. */ | |
3823 | criteria->include_readonly = true; | |
3824 | } | |
3825 | ||
3826 | /* By default, criteria initialized by rule_criteria_init() will match flows | |
3827 | * that are read-only, on the assumption that the collected flows won't be | |
3828 | * modified. Call this function to match only flows that are be modifiable. | |
3829 | * | |
3830 | * Specify 'can_write_readonly' as false in ordinary circumstances, true if the | |
3831 | * caller has special privileges that allow it to modify even "read-only" | |
3832 | * flows. */ | |
3833 | static void | |
3834 | rule_criteria_require_rw(struct rule_criteria *criteria, | |
3835 | bool can_write_readonly) | |
3836 | { | |
3837 | criteria->include_readonly = can_write_readonly; | |
a9b22b7f BP |
3838 | } |
3839 | ||
3840 | static void | |
3841 | rule_criteria_destroy(struct rule_criteria *criteria) | |
3842 | { | |
3843 | cls_rule_destroy(&criteria->cr); | |
3844 | } | |
3845 | ||
a8e547c1 BP |
3846 | void |
3847 | rule_collection_init(struct rule_collection *rules) | |
3848 | { | |
3849 | rules->rules = rules->stub; | |
3850 | rules->n = 0; | |
3851 | rules->capacity = ARRAY_SIZE(rules->stub); | |
3852 | } | |
3853 | ||
3854 | void | |
3855 | rule_collection_add(struct rule_collection *rules, struct rule *rule) | |
3856 | { | |
3857 | if (rules->n >= rules->capacity) { | |
3858 | size_t old_size, new_size; | |
3859 | ||
3860 | old_size = rules->capacity * sizeof *rules->rules; | |
3861 | rules->capacity *= 2; | |
3862 | new_size = rules->capacity * sizeof *rules->rules; | |
3863 | ||
3864 | if (rules->rules == rules->stub) { | |
3865 | rules->rules = xmalloc(new_size); | |
3866 | memcpy(rules->rules, rules->stub, old_size); | |
3867 | } else { | |
3868 | rules->rules = xrealloc(rules->rules, new_size); | |
3869 | } | |
3870 | } | |
3871 | ||
3872 | rules->rules[rules->n++] = rule; | |
3873 | } | |
3874 | ||
15aaf599 BP |
3875 | void |
3876 | rule_collection_ref(struct rule_collection *rules) | |
3877 | OVS_REQUIRES(ofproto_mutex) | |
3878 | { | |
3879 | size_t i; | |
3880 | ||
3881 | for (i = 0; i < rules->n; i++) { | |
3882 | ofproto_rule_ref(rules->rules[i]); | |
3883 | } | |
3884 | } | |
3885 | ||
3886 | void | |
3887 | rule_collection_unref(struct rule_collection *rules) | |
3888 | { | |
3889 | size_t i; | |
3890 | ||
3891 | for (i = 0; i < rules->n; i++) { | |
3892 | ofproto_rule_unref(rules->rules[i]); | |
3893 | } | |
3894 | } | |
3895 | ||
39c94593 JR |
3896 | /* Returns a NULL-terminated array of rule pointers, |
3897 | * destroys 'rules'. */ | |
3898 | static struct rule ** | |
3899 | rule_collection_detach(struct rule_collection *rules) | |
3900 | { | |
3901 | struct rule **rule_array; | |
3902 | ||
3903 | rule_collection_add(rules, NULL); | |
3904 | ||
3905 | if (rules->rules == rules->stub) { | |
3906 | rules->rules = xmemdup(rules->rules, rules->n * sizeof *rules->rules); | |
3907 | } | |
3908 | ||
3909 | rule_array = rules->rules; | |
3910 | rule_collection_init(rules); | |
3911 | ||
3912 | return rule_array; | |
3913 | } | |
3914 | ||
a8e547c1 BP |
3915 | void |
3916 | rule_collection_destroy(struct rule_collection *rules) | |
3917 | { | |
3918 | if (rules->rules != rules->stub) { | |
3919 | free(rules->rules); | |
3920 | } | |
bfd3dbf6 BP |
3921 | |
3922 | /* Make repeated destruction harmless. */ | |
3923 | rule_collection_init(rules); | |
a8e547c1 BP |
3924 | } |
3925 | ||
39c94593 JR |
3926 | /* Schedules postponed removal of rules, destroys 'rules'. */ |
3927 | static void | |
3928 | rule_collection_remove_postponed(struct rule_collection *rules) | |
3929 | OVS_REQUIRES(ofproto_mutex) | |
3930 | { | |
3931 | if (rules->n > 0) { | |
3932 | if (rules->n == 1) { | |
3933 | ovsrcu_postpone(remove_rule_rcu, rules->rules[0]); | |
3934 | } else { | |
3935 | ovsrcu_postpone(remove_rules_rcu, rule_collection_detach(rules)); | |
3936 | } | |
3937 | } | |
3938 | } | |
3939 | ||
dd51dae2 BP |
3940 | /* Checks whether 'rule' matches 'c' and, if so, adds it to 'rules'. This |
3941 | * function verifies most of the criteria in 'c' itself, but the caller must | |
3942 | * check 'c->cr' itself. | |
3943 | * | |
2b7b1427 | 3944 | * Rules that have already been marked for removal are not collected. |
ce59413f | 3945 | * |
dd51dae2 | 3946 | * Increments '*n_readonly' if 'rule' wasn't added because it's read-only (and |
b20f4073 BP |
3947 | * 'c' only includes modifiable rules). */ |
3948 | static void | |
a9b22b7f | 3949 | collect_rule(struct rule *rule, const struct rule_criteria *c, |
dd51dae2 | 3950 | struct rule_collection *rules, size_t *n_readonly) |
15aaf599 | 3951 | OVS_REQUIRES(ofproto_mutex) |
6c1d7642 | 3952 | { |
dd51dae2 BP |
3953 | if ((c->table_id == rule->table_id || c->table_id == 0xff) |
3954 | && ofproto_rule_has_out_port(rule, c->out_port) | |
3955 | && ofproto_rule_has_out_group(rule, c->out_group) | |
3956 | && !((rule->flow_cookie ^ c->cookie) & c->cookie_mask) | |
ce59413f | 3957 | && (!rule_is_hidden(rule) || c->include_hidden) |
bd53aa17 | 3958 | && cls_rule_visible_in_version(&rule->cr, c->version)) { |
dd51dae2 | 3959 | /* Rule matches all the criteria... */ |
834fe5cb | 3960 | if (!rule_is_readonly(rule) || c->include_readonly) { |
dd51dae2 | 3961 | /* ...add it. */ |
a8e547c1 | 3962 | rule_collection_add(rules, rule); |
dd51dae2 BP |
3963 | } else { |
3964 | /* ...except it's read-only. */ | |
3965 | ++*n_readonly; | |
6c1d7642 | 3966 | } |
6c1d7642 BP |
3967 | } |
3968 | } | |
3969 | ||
a9b22b7f BP |
3970 | /* Searches 'ofproto' for rules that match the criteria in 'criteria'. Matches |
3971 | * on classifiers rules are done in the "loose" way required for OpenFlow | |
3972 | * OFPFC_MODIFY and OFPFC_DELETE requests. Puts the selected rules on list | |
9ed18e46 BP |
3973 | * 'rules'. |
3974 | * | |
9ed18e46 | 3975 | * Returns 0 on success, otherwise an OpenFlow error code. */ |
90bf1e07 | 3976 | static enum ofperr |
a9b22b7f | 3977 | collect_rules_loose(struct ofproto *ofproto, |
a8e547c1 BP |
3978 | const struct rule_criteria *criteria, |
3979 | struct rule_collection *rules) | |
15aaf599 | 3980 | OVS_REQUIRES(ofproto_mutex) |
9ed18e46 | 3981 | { |
d0918789 | 3982 | struct oftable *table; |
554764d1 | 3983 | enum ofperr error = 0; |
dd51dae2 | 3984 | size_t n_readonly = 0; |
48266274 | 3985 | |
a8e547c1 BP |
3986 | rule_collection_init(rules); |
3987 | ||
554764d1 SH |
3988 | if (!check_table_id(ofproto, criteria->table_id)) { |
3989 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
a8e547c1 | 3990 | goto exit; |
48266274 | 3991 | } |
9ed18e46 | 3992 | |
b8266395 | 3993 | if (criteria->cookie_mask == OVS_BE64_MAX) { |
98eaac36 JR |
3994 | struct rule *rule; |
3995 | ||
a9b22b7f BP |
3996 | HINDEX_FOR_EACH_WITH_HASH (rule, cookie_node, |
3997 | hash_cookie(criteria->cookie), | |
98eaac36 | 3998 | &ofproto->cookies) { |
a9b22b7f | 3999 | if (cls_rule_is_loose_match(&rule->cr, &criteria->cr.match)) { |
b20f4073 | 4000 | collect_rule(rule, criteria, rules, &n_readonly); |
98eaac36 JR |
4001 | } |
4002 | } | |
6c1d7642 | 4003 | } else { |
a9b22b7f | 4004 | FOR_EACH_MATCHING_TABLE (table, criteria->table_id, ofproto) { |
6c1d7642 | 4005 | struct rule *rule; |
9ed18e46 | 4006 | |
bd53aa17 JR |
4007 | CLS_FOR_EACH_TARGET (rule, cr, &table->cls, &criteria->cr, |
4008 | criteria->version) { | |
b20f4073 | 4009 | collect_rule(rule, criteria, rules, &n_readonly); |
9ed18e46 BP |
4010 | } |
4011 | } | |
4012 | } | |
48d28ac1 | 4013 | |
a8e547c1 | 4014 | exit: |
dd51dae2 BP |
4015 | if (!error && !rules->n && n_readonly) { |
4016 | /* We didn't find any rules to modify. We did find some read-only | |
4017 | * rules that we're not allowed to modify, so report that. */ | |
4018 | error = OFPERR_OFPBRC_EPERM; | |
4019 | } | |
a8e547c1 BP |
4020 | if (error) { |
4021 | rule_collection_destroy(rules); | |
4022 | } | |
48d28ac1 | 4023 | return error; |
9ed18e46 BP |
4024 | } |
4025 | ||
a9b22b7f BP |
4026 | /* Searches 'ofproto' for rules that match the criteria in 'criteria'. Matches |
4027 | * on classifiers rules are done in the "strict" way required for OpenFlow | |
4028 | * OFPFC_MODIFY_STRICT and OFPFC_DELETE_STRICT requests. Puts the selected | |
4029 | * rules on list 'rules'. | |
9ed18e46 | 4030 | * |
9ed18e46 | 4031 | * Returns 0 on success, otherwise an OpenFlow error code. */ |
90bf1e07 | 4032 | static enum ofperr |
a9b22b7f | 4033 | collect_rules_strict(struct ofproto *ofproto, |
a8e547c1 BP |
4034 | const struct rule_criteria *criteria, |
4035 | struct rule_collection *rules) | |
15aaf599 | 4036 | OVS_REQUIRES(ofproto_mutex) |
9ed18e46 | 4037 | { |
d0918789 | 4038 | struct oftable *table; |
dd51dae2 | 4039 | size_t n_readonly = 0; |
d51c8b71 | 4040 | enum ofperr error = 0; |
48266274 | 4041 | |
a8e547c1 BP |
4042 | rule_collection_init(rules); |
4043 | ||
554764d1 SH |
4044 | if (!check_table_id(ofproto, criteria->table_id)) { |
4045 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
a8e547c1 | 4046 | goto exit; |
48266274 | 4047 | } |
9ed18e46 | 4048 | |
b8266395 | 4049 | if (criteria->cookie_mask == OVS_BE64_MAX) { |
98eaac36 JR |
4050 | struct rule *rule; |
4051 | ||
a9b22b7f BP |
4052 | HINDEX_FOR_EACH_WITH_HASH (rule, cookie_node, |
4053 | hash_cookie(criteria->cookie), | |
98eaac36 | 4054 | &ofproto->cookies) { |
a9b22b7f | 4055 | if (cls_rule_equal(&rule->cr, &criteria->cr)) { |
b20f4073 | 4056 | collect_rule(rule, criteria, rules, &n_readonly); |
98eaac36 JR |
4057 | } |
4058 | } | |
6c1d7642 | 4059 | } else { |
a9b22b7f | 4060 | FOR_EACH_MATCHING_TABLE (table, criteria->table_id, ofproto) { |
6c1d7642 | 4061 | struct rule *rule; |
9ed18e46 | 4062 | |
a9b22b7f | 4063 | rule = rule_from_cls_rule(classifier_find_rule_exactly( |
bd53aa17 JR |
4064 | &table->cls, &criteria->cr, |
4065 | criteria->version)); | |
6c1d7642 | 4066 | if (rule) { |
b20f4073 | 4067 | collect_rule(rule, criteria, rules, &n_readonly); |
9ed18e46 BP |
4068 | } |
4069 | } | |
4070 | } | |
48d28ac1 | 4071 | |
a8e547c1 | 4072 | exit: |
b20f4073 BP |
4073 | if (!error && !rules->n && n_readonly) { |
4074 | /* We didn't find any rules to modify. We did find some read-only | |
4075 | * rules that we're not allowed to modify, so report that. */ | |
4076 | error = OFPERR_OFPBRC_EPERM; | |
4077 | } | |
a8e547c1 BP |
4078 | if (error) { |
4079 | rule_collection_destroy(rules); | |
4080 | } | |
6c1d7642 | 4081 | return error; |
9ed18e46 BP |
4082 | } |
4083 | ||
f27f2134 BP |
4084 | /* Returns 'age_ms' (a duration in milliseconds), converted to seconds and |
4085 | * forced into the range of a uint16_t. */ | |
4086 | static int | |
4087 | age_secs(long long int age_ms) | |
4088 | { | |
4089 | return (age_ms < 0 ? 0 | |
4090 | : age_ms >= UINT16_MAX * 1000 ? UINT16_MAX | |
4091 | : (unsigned int) age_ms / 1000); | |
4092 | } | |
4093 | ||
90bf1e07 | 4094 | static enum ofperr |
63f2140a | 4095 | handle_flow_stats_request(struct ofconn *ofconn, |
982697a4 | 4096 | const struct ofp_header *request) |
15aaf599 | 4097 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 4098 | { |
64ff1d96 | 4099 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
81d1ea94 | 4100 | struct ofputil_flow_stats_request fsr; |
a9b22b7f | 4101 | struct rule_criteria criteria; |
a8e547c1 | 4102 | struct rule_collection rules; |
ca6ba700 | 4103 | struct ovs_list replies; |
90bf1e07 | 4104 | enum ofperr error; |
a8e547c1 | 4105 | size_t i; |
09246b99 | 4106 | |
982697a4 | 4107 | error = ofputil_decode_flow_stats_request(&fsr, request); |
09246b99 BP |
4108 | if (error) { |
4109 | return error; | |
4110 | } | |
4111 | ||
2b7b1427 JR |
4112 | rule_criteria_init(&criteria, fsr.table_id, &fsr.match, 0, CLS_MAX_VERSION, |
4113 | fsr.cookie, fsr.cookie_mask, fsr.out_port, | |
4114 | fsr.out_group); | |
15aaf599 BP |
4115 | |
4116 | ovs_mutex_lock(&ofproto_mutex); | |
a9b22b7f BP |
4117 | error = collect_rules_loose(ofproto, &criteria, &rules); |
4118 | rule_criteria_destroy(&criteria); | |
15aaf599 BP |
4119 | if (!error) { |
4120 | rule_collection_ref(&rules); | |
4121 | } | |
4122 | ovs_mutex_unlock(&ofproto_mutex); | |
4123 | ||
9ed18e46 BP |
4124 | if (error) { |
4125 | return error; | |
4126 | } | |
5ecc9d81 | 4127 | |
982697a4 | 4128 | ofpmp_init(&replies, request); |
a8e547c1 BP |
4129 | for (i = 0; i < rules.n; i++) { |
4130 | struct rule *rule = rules.rules[i]; | |
f27f2134 | 4131 | long long int now = time_msec(); |
9ed18e46 | 4132 | struct ofputil_flow_stats fs; |
15aaf599 | 4133 | long long int created, used, modified; |
dc723c44 | 4134 | const struct rule_actions *actions; |
15aaf599 | 4135 | enum ofputil_flow_mod_flags flags; |
a3779dbc | 4136 | |
d10976b7 | 4137 | ovs_mutex_lock(&rule->mutex); |
15aaf599 | 4138 | fs.cookie = rule->flow_cookie; |
a3779dbc EJ |
4139 | fs.idle_timeout = rule->idle_timeout; |
4140 | fs.hard_timeout = rule->hard_timeout; | |
ca26eb44 | 4141 | fs.importance = rule->importance; |
15aaf599 | 4142 | created = rule->created; |
15aaf599 | 4143 | modified = rule->modified; |
06a0f3e2 | 4144 | actions = rule_get_actions(rule); |
15aaf599 | 4145 | flags = rule->flags; |
d10976b7 | 4146 | ovs_mutex_unlock(&rule->mutex); |
a3779dbc | 4147 | |
dc437090 JR |
4148 | ofproto->ofproto_class->rule_get_stats(rule, &fs.packet_count, |
4149 | &fs.byte_count, &used); | |
4150 | ||
15aaf599 BP |
4151 | minimatch_expand(&rule->cr.match, &fs.match); |
4152 | fs.table_id = rule->table_id; | |
4153 | calc_duration(created, now, &fs.duration_sec, &fs.duration_nsec); | |
4154 | fs.priority = rule->cr.priority; | |
4155 | fs.idle_age = age_secs(now - used); | |
4156 | fs.hard_age = age_secs(now - modified); | |
15aaf599 BP |
4157 | fs.ofpacts = actions->ofpacts; |
4158 | fs.ofpacts_len = actions->ofpacts_len; | |
3f517bcd | 4159 | |
15aaf599 | 4160 | fs.flags = flags; |
9ed18e46 | 4161 | ofputil_append_flow_stats_reply(&fs, &replies); |
3c4486a5 | 4162 | } |
15aaf599 BP |
4163 | |
4164 | rule_collection_unref(&rules); | |
a8e547c1 BP |
4165 | rule_collection_destroy(&rules); |
4166 | ||
63f2140a | 4167 | ofconn_send_replies(ofconn, &replies); |
5ecc9d81 | 4168 | |
09246b99 BP |
4169 | return 0; |
4170 | } | |
4171 | ||
4f2cad2c | 4172 | static void |
3394b5b6 | 4173 | flow_stats_ds(struct rule *rule, struct ds *results) |
4f2cad2c | 4174 | { |
4f2cad2c | 4175 | uint64_t packet_count, byte_count; |
dc723c44 | 4176 | const struct rule_actions *actions; |
dc437090 | 4177 | long long int created, used; |
4f2cad2c | 4178 | |
dc437090 JR |
4179 | rule->ofproto->ofproto_class->rule_get_stats(rule, &packet_count, |
4180 | &byte_count, &used); | |
4f2cad2c | 4181 | |
15aaf599 | 4182 | ovs_mutex_lock(&rule->mutex); |
06a0f3e2 | 4183 | actions = rule_get_actions(rule); |
15aaf599 BP |
4184 | created = rule->created; |
4185 | ovs_mutex_unlock(&rule->mutex); | |
4186 | ||
6c1491fb BP |
4187 | if (rule->table_id != 0) { |
4188 | ds_put_format(results, "table_id=%"PRIu8", ", rule->table_id); | |
4189 | } | |
15aaf599 | 4190 | ds_put_format(results, "duration=%llds, ", (time_msec() - created) / 1000); |
4f2cad2c JP |
4191 | ds_put_format(results, "n_packets=%"PRIu64", ", packet_count); |
4192 | ds_put_format(results, "n_bytes=%"PRIu64", ", byte_count); | |
cb833cf6 | 4193 | cls_rule_format(&rule->cr, results); |
a5df0e72 | 4194 | ds_put_char(results, ','); |
15aaf599 | 4195 | |
455ecd77 | 4196 | ds_put_cstr(results, "actions="); |
15aaf599 BP |
4197 | ofpacts_format(actions->ofpacts, actions->ofpacts_len, results); |
4198 | ||
4f2cad2c JP |
4199 | ds_put_cstr(results, "\n"); |
4200 | } | |
4201 | ||
d295e8e9 | 4202 | /* Adds a pretty-printed description of all flows to 'results', including |
ee8b231c | 4203 | * hidden flows (e.g., set up by in-band control). */ |
4f2cad2c JP |
4204 | void |
4205 | ofproto_get_all_flows(struct ofproto *p, struct ds *results) | |
4206 | { | |
d0918789 | 4207 | struct oftable *table; |
6c1491fb | 4208 | |
d0918789 | 4209 | OFPROTO_FOR_EACH_TABLE (table, p) { |
6c1491fb | 4210 | struct rule *rule; |
064af421 | 4211 | |
5f0476ce | 4212 | CLS_FOR_EACH (rule, cr, &table->cls) { |
6c1491fb BP |
4213 | flow_stats_ds(rule, results); |
4214 | } | |
064af421 | 4215 | } |
064af421 BP |
4216 | } |
4217 | ||
b5827b24 BP |
4218 | /* Obtains the NetFlow engine type and engine ID for 'ofproto' into |
4219 | * '*engine_type' and '*engine_id', respectively. */ | |
4220 | void | |
4221 | ofproto_get_netflow_ids(const struct ofproto *ofproto, | |
4222 | uint8_t *engine_type, uint8_t *engine_id) | |
4223 | { | |
abe529af | 4224 | ofproto->ofproto_class->get_netflow_ids(ofproto, engine_type, engine_id); |
b5827b24 BP |
4225 | } |
4226 | ||
8f5514fe AW |
4227 | /* Checks the status change of CFM on 'ofport'. |
4228 | * | |
4229 | * Returns true if 'ofproto_class' does not support 'cfm_status_changed'. */ | |
4230 | bool | |
4231 | ofproto_port_cfm_status_changed(struct ofproto *ofproto, ofp_port_t ofp_port) | |
4232 | { | |
4233 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
4234 | return (ofport && ofproto->ofproto_class->cfm_status_changed | |
4235 | ? ofproto->ofproto_class->cfm_status_changed(ofport) | |
4236 | : true); | |
4237 | } | |
4238 | ||
88bf179a AW |
4239 | /* Checks the status of CFM configured on 'ofp_port' within 'ofproto'. |
4240 | * Returns 0 if the port's CFM status was successfully stored into | |
4241 | * '*status'. Returns positive errno if the port did not have CFM | |
8f5514fe | 4242 | * configured. |
9a9e3786 | 4243 | * |
88bf179a AW |
4244 | * The caller must provide and own '*status', and must free 'status->rmps'. |
4245 | * '*status' is indeterminate if the return value is non-zero. */ | |
4246 | int | |
4e022ec0 | 4247 | ofproto_port_get_cfm_status(const struct ofproto *ofproto, ofp_port_t ofp_port, |
685acfd9 | 4248 | struct cfm_status *status) |
3967a833 MM |
4249 | { |
4250 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
88bf179a AW |
4251 | return (ofport && ofproto->ofproto_class->get_cfm_status |
4252 | ? ofproto->ofproto_class->get_cfm_status(ofport, status) | |
4253 | : EOPNOTSUPP); | |
3967a833 MM |
4254 | } |
4255 | ||
90bf1e07 | 4256 | static enum ofperr |
76c93b22 | 4257 | handle_aggregate_stats_request(struct ofconn *ofconn, |
982697a4 | 4258 | const struct ofp_header *oh) |
15aaf599 | 4259 | OVS_EXCLUDED(ofproto_mutex) |
27d34fce | 4260 | { |
76c93b22 | 4261 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
81d1ea94 | 4262 | struct ofputil_flow_stats_request request; |
76c93b22 | 4263 | struct ofputil_aggregate_stats stats; |
5e9d0469 | 4264 | bool unknown_packets, unknown_bytes; |
a9b22b7f | 4265 | struct rule_criteria criteria; |
a8e547c1 | 4266 | struct rule_collection rules; |
76c93b22 | 4267 | struct ofpbuf *reply; |
90bf1e07 | 4268 | enum ofperr error; |
a8e547c1 | 4269 | size_t i; |
27d34fce | 4270 | |
982697a4 | 4271 | error = ofputil_decode_flow_stats_request(&request, oh); |
76c93b22 BP |
4272 | if (error) { |
4273 | return error; | |
4274 | } | |
5ecc9d81 | 4275 | |
a9b22b7f | 4276 | rule_criteria_init(&criteria, request.table_id, &request.match, 0, |
2b7b1427 | 4277 | CLS_MAX_VERSION, request.cookie, request.cookie_mask, |
a9b22b7f | 4278 | request.out_port, request.out_group); |
15aaf599 BP |
4279 | |
4280 | ovs_mutex_lock(&ofproto_mutex); | |
a9b22b7f BP |
4281 | error = collect_rules_loose(ofproto, &criteria, &rules); |
4282 | rule_criteria_destroy(&criteria); | |
15aaf599 BP |
4283 | if (!error) { |
4284 | rule_collection_ref(&rules); | |
4285 | } | |
4286 | ovs_mutex_unlock(&ofproto_mutex); | |
4287 | ||
9ed18e46 BP |
4288 | if (error) { |
4289 | return error; | |
4290 | } | |
3c4486a5 | 4291 | |
9ed18e46 | 4292 | memset(&stats, 0, sizeof stats); |
5e9d0469 | 4293 | unknown_packets = unknown_bytes = false; |
a8e547c1 BP |
4294 | for (i = 0; i < rules.n; i++) { |
4295 | struct rule *rule = rules.rules[i]; | |
9ed18e46 BP |
4296 | uint64_t packet_count; |
4297 | uint64_t byte_count; | |
dc437090 | 4298 | long long int used; |
5ecc9d81 | 4299 | |
9ed18e46 | 4300 | ofproto->ofproto_class->rule_get_stats(rule, &packet_count, |
dc437090 | 4301 | &byte_count, &used); |
5ecc9d81 | 4302 | |
5e9d0469 BP |
4303 | if (packet_count == UINT64_MAX) { |
4304 | unknown_packets = true; | |
4305 | } else { | |
4306 | stats.packet_count += packet_count; | |
4307 | } | |
4308 | ||
4309 | if (byte_count == UINT64_MAX) { | |
4310 | unknown_bytes = true; | |
4311 | } else { | |
4312 | stats.byte_count += byte_count; | |
4313 | } | |
4314 | ||
9ed18e46 | 4315 | stats.flow_count++; |
3c4486a5 | 4316 | } |
5e9d0469 BP |
4317 | if (unknown_packets) { |
4318 | stats.packet_count = UINT64_MAX; | |
4319 | } | |
4320 | if (unknown_bytes) { | |
4321 | stats.byte_count = UINT64_MAX; | |
4322 | } | |
27d34fce | 4323 | |
15aaf599 | 4324 | rule_collection_unref(&rules); |
a8e547c1 BP |
4325 | rule_collection_destroy(&rules); |
4326 | ||
982697a4 | 4327 | reply = ofputil_encode_aggregate_stats_reply(&stats, oh); |
76c93b22 | 4328 | ofconn_send_reply(ofconn, reply); |
09246b99 BP |
4329 | |
4330 | return 0; | |
4331 | } | |
4332 | ||
c1c9c9c4 | 4333 | struct queue_stats_cbdata { |
ca0f572c | 4334 | struct ofport *ofport; |
ca6ba700 | 4335 | struct ovs_list replies; |
6dc34a0d | 4336 | long long int now; |
c1c9c9c4 BP |
4337 | }; |
4338 | ||
4339 | static void | |
db9220c3 | 4340 | put_queue_stats(struct queue_stats_cbdata *cbdata, uint32_t queue_id, |
c1c9c9c4 BP |
4341 | const struct netdev_queue_stats *stats) |
4342 | { | |
6dc34a0d | 4343 | struct ofputil_queue_stats oqs; |
c1c9c9c4 | 4344 | |
6dc34a0d BP |
4345 | oqs.port_no = cbdata->ofport->pp.port_no; |
4346 | oqs.queue_id = queue_id; | |
4347 | oqs.tx_bytes = stats->tx_bytes; | |
4348 | oqs.tx_packets = stats->tx_packets; | |
4349 | oqs.tx_errors = stats->tx_errors; | |
4350 | if (stats->created != LLONG_MIN) { | |
4351 | calc_duration(stats->created, cbdata->now, | |
4352 | &oqs.duration_sec, &oqs.duration_nsec); | |
4353 | } else { | |
4354 | oqs.duration_sec = oqs.duration_nsec = UINT32_MAX; | |
4355 | } | |
64626975 | 4356 | ofputil_append_queue_stat(&cbdata->replies, &oqs); |
c1c9c9c4 BP |
4357 | } |
4358 | ||
4359 | static void | |
db9220c3 | 4360 | handle_queue_stats_dump_cb(uint32_t queue_id, |
c1c9c9c4 BP |
4361 | struct netdev_queue_stats *stats, |
4362 | void *cbdata_) | |
4363 | { | |
4364 | struct queue_stats_cbdata *cbdata = cbdata_; | |
4365 | ||
4366 | put_queue_stats(cbdata, queue_id, stats); | |
4367 | } | |
4368 | ||
0414d158 | 4369 | static enum ofperr |
ca0f572c | 4370 | handle_queue_stats_for_port(struct ofport *port, uint32_t queue_id, |
c1c9c9c4 BP |
4371 | struct queue_stats_cbdata *cbdata) |
4372 | { | |
ca0f572c | 4373 | cbdata->ofport = port; |
c1c9c9c4 BP |
4374 | if (queue_id == OFPQ_ALL) { |
4375 | netdev_dump_queue_stats(port->netdev, | |
4376 | handle_queue_stats_dump_cb, cbdata); | |
4377 | } else { | |
4378 | struct netdev_queue_stats stats; | |
4379 | ||
1ac788f6 BP |
4380 | if (!netdev_get_queue_stats(port->netdev, queue_id, &stats)) { |
4381 | put_queue_stats(cbdata, queue_id, &stats); | |
0414d158 BP |
4382 | } else { |
4383 | return OFPERR_OFPQOFC_BAD_QUEUE; | |
1ac788f6 | 4384 | } |
c1c9c9c4 | 4385 | } |
0414d158 | 4386 | return 0; |
c1c9c9c4 BP |
4387 | } |
4388 | ||
90bf1e07 | 4389 | static enum ofperr |
63f2140a | 4390 | handle_queue_stats_request(struct ofconn *ofconn, |
982697a4 | 4391 | const struct ofp_header *rq) |
c1c9c9c4 | 4392 | { |
64ff1d96 | 4393 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
c1c9c9c4 | 4394 | struct queue_stats_cbdata cbdata; |
0414d158 | 4395 | struct ofport *port; |
0414d158 | 4396 | enum ofperr error; |
64626975 | 4397 | struct ofputil_queue_stats_request oqsr; |
c1c9c9c4 | 4398 | |
c1c9c9c4 BP |
4399 | COVERAGE_INC(ofproto_queue_req); |
4400 | ||
982697a4 | 4401 | ofpmp_init(&cbdata.replies, rq); |
6dc34a0d | 4402 | cbdata.now = time_msec(); |
c1c9c9c4 | 4403 | |
64626975 SH |
4404 | error = ofputil_decode_queue_stats_request(rq, &oqsr); |
4405 | if (error) { | |
4406 | return error; | |
4407 | } | |
4408 | ||
7f05e7ab | 4409 | if (oqsr.port_no == OFPP_ANY) { |
0414d158 | 4410 | error = OFPERR_OFPQOFC_BAD_QUEUE; |
4e8e4213 | 4411 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
64626975 | 4412 | if (!handle_queue_stats_for_port(port, oqsr.queue_id, &cbdata)) { |
0414d158 BP |
4413 | error = 0; |
4414 | } | |
c1c9c9c4 | 4415 | } |
0414d158 | 4416 | } else { |
64626975 | 4417 | port = ofproto_get_port(ofproto, oqsr.port_no); |
0414d158 | 4418 | error = (port |
64626975 | 4419 | ? handle_queue_stats_for_port(port, oqsr.queue_id, &cbdata) |
0414d158 BP |
4420 | : OFPERR_OFPQOFC_BAD_PORT); |
4421 | } | |
4422 | if (!error) { | |
4423 | ofconn_send_replies(ofconn, &cbdata.replies); | |
c1c9c9c4 | 4424 | } else { |
63f2140a | 4425 | ofpbuf_list_delete(&cbdata.replies); |
c1c9c9c4 | 4426 | } |
c1c9c9c4 | 4427 | |
0414d158 | 4428 | return error; |
c1c9c9c4 | 4429 | } |
7ee20df1 | 4430 | |
2e31a9b8 | 4431 | static enum ofperr |
6787a49f | 4432 | evict_rules_from_table(struct oftable *table) |
15aaf599 | 4433 | OVS_REQUIRES(ofproto_mutex) |
2e31a9b8 | 4434 | { |
802f84ff JR |
4435 | enum ofperr error = 0; |
4436 | struct rule_collection rules; | |
6787a49f | 4437 | unsigned int count = table->n_flows; |
802f84ff JR |
4438 | unsigned int max_flows = table->max_flows; |
4439 | ||
4440 | rule_collection_init(&rules); | |
4441 | ||
4442 | while (count-- > max_flows) { | |
2e31a9b8 | 4443 | struct rule *rule; |
8037acb4 | 4444 | |
2e31a9b8 | 4445 | if (!choose_rule_to_evict(table, &rule)) { |
802f84ff JR |
4446 | error = OFPERR_OFPFMFC_TABLE_FULL; |
4447 | break; | |
2e31a9b8 | 4448 | } else { |
802f84ff JR |
4449 | eviction_group_remove_rule(rule); |
4450 | rule_collection_add(&rules, rule); | |
2e31a9b8 | 4451 | } |
8037acb4 | 4452 | } |
802f84ff | 4453 | delete_flows__(&rules, OFPRR_EVICTION, NULL); |
2e31a9b8 | 4454 | |
802f84ff | 4455 | return error; |
8037acb4 BP |
4456 | } |
4457 | ||
18080541 BP |
4458 | static void |
4459 | get_conjunctions(const struct ofputil_flow_mod *fm, | |
4460 | struct cls_conjunction **conjsp, size_t *n_conjsp) | |
4461 | OVS_REQUIRES(ofproto_mutex) | |
4462 | { | |
4463 | struct cls_conjunction *conjs = NULL; | |
4464 | int n_conjs = 0; | |
4465 | ||
f08e39dd BP |
4466 | const struct ofpact *ofpact; |
4467 | OFPACT_FOR_EACH (ofpact, fm->ofpacts, fm->ofpacts_len) { | |
4468 | if (ofpact->type == OFPACT_CONJUNCTION) { | |
18080541 | 4469 | n_conjs++; |
f08e39dd BP |
4470 | } else if (ofpact->type != OFPACT_NOTE) { |
4471 | /* "conjunction" may appear with "note" actions but not with any | |
4472 | * other type of actions. */ | |
4473 | ovs_assert(!n_conjs); | |
4474 | break; | |
18080541 | 4475 | } |
f08e39dd BP |
4476 | } |
4477 | if (n_conjs) { | |
4478 | int i = 0; | |
18080541 BP |
4479 | |
4480 | conjs = xzalloc(n_conjs * sizeof *conjs); | |
18080541 | 4481 | OFPACT_FOR_EACH (ofpact, fm->ofpacts, fm->ofpacts_len) { |
f08e39dd BP |
4482 | if (ofpact->type == OFPACT_CONJUNCTION) { |
4483 | struct ofpact_conjunction *oc = ofpact_get_CONJUNCTION(ofpact); | |
4484 | conjs[i].clause = oc->clause; | |
4485 | conjs[i].n_clauses = oc->n_clauses; | |
4486 | conjs[i].id = oc->id; | |
4487 | i++; | |
4488 | } | |
18080541 BP |
4489 | } |
4490 | } | |
4491 | ||
4492 | *conjsp = conjs; | |
4493 | *n_conjsp = n_conjs; | |
4494 | } | |
4495 | ||
1f42be1c JR |
4496 | /* Implements OFPFC_ADD and the cases for OFPFC_MODIFY and OFPFC_MODIFY_STRICT |
4497 | * in which no matching flow already exists in the flow table. | |
4498 | * | |
4499 | * Adds the flow specified by 'fm', to the ofproto's flow table. Returns 0 on | |
4500 | * success, or an OpenFlow error code on failure. | |
4501 | * | |
4502 | * On successful return the caller must complete the operation either by | |
4503 | * calling add_flow_finish(), or add_flow_revert() if the operation needs to | |
4504 | * be reverted. | |
4505 | * | |
4506 | * The caller retains ownership of 'fm->ofpacts'. */ | |
90bf1e07 | 4507 | static enum ofperr |
8be00367 | 4508 | add_flow_start(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
15aaf599 | 4509 | OVS_REQUIRES(ofproto_mutex) |
064af421 | 4510 | { |
8be00367 JR |
4511 | struct ofputil_flow_mod *fm = &ofm->fm; |
4512 | struct rule **old_rule = &ofm->old_rules.stub[0]; | |
4513 | struct rule **new_rule = &ofm->new_rules.stub[0]; | |
d0918789 | 4514 | struct oftable *table; |
8037acb4 | 4515 | struct cls_rule cr; |
064af421 | 4516 | struct rule *rule; |
5a361239 | 4517 | uint8_t table_id; |
39c94593 JR |
4518 | struct cls_conjunction *conjs; |
4519 | size_t n_conjs; | |
4520 | enum ofperr error; | |
064af421 | 4521 | |
554764d1 SH |
4522 | if (!check_table_id(ofproto, fm->table_id)) { |
4523 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
48266274 BP |
4524 | return error; |
4525 | } | |
4526 | ||
7ee20df1 BP |
4527 | /* Pick table. */ |
4528 | if (fm->table_id == 0xff) { | |
13521ff5 | 4529 | if (ofproto->ofproto_class->rule_choose_table) { |
81a76618 BP |
4530 | error = ofproto->ofproto_class->rule_choose_table(ofproto, |
4531 | &fm->match, | |
7ee20df1 BP |
4532 | &table_id); |
4533 | if (error) { | |
4534 | return error; | |
4535 | } | |
cb22974d | 4536 | ovs_assert(table_id < ofproto->n_tables); |
7ee20df1 | 4537 | } else { |
5a361239 | 4538 | table_id = 0; |
7ee20df1 BP |
4539 | } |
4540 | } else if (fm->table_id < ofproto->n_tables) { | |
5a361239 | 4541 | table_id = fm->table_id; |
7ee20df1 | 4542 | } else { |
c22c56bd | 4543 | return OFPERR_OFPBRC_BAD_TABLE_ID; |
064af421 BP |
4544 | } |
4545 | ||
5a361239 | 4546 | table = &ofproto->tables[table_id]; |
834fe5cb BP |
4547 | if (table->flags & OFTABLE_READONLY |
4548 | && !(fm->flags & OFPUTIL_FF_NO_READONLY)) { | |
5c67e4af BP |
4549 | return OFPERR_OFPBRC_EPERM; |
4550 | } | |
4551 | ||
c84d8691 JR |
4552 | if (!(fm->flags & OFPUTIL_FF_HIDDEN_FIELDS) |
4553 | && !match_has_default_hidden_fields(&fm->match)) { | |
4554 | VLOG_WARN_RL(&rl, "%s: (add_flow) only internal flows can set " | |
4555 | "non-default values to hidden fields", ofproto->name); | |
4556 | return OFPERR_OFPBRC_EPERM; | |
adcf00ba AZ |
4557 | } |
4558 | ||
bd53aa17 | 4559 | cls_rule_init(&cr, &fm->match, fm->priority); |
8037acb4 | 4560 | |
1f42be1c | 4561 | /* Check for the existence of an identical rule. |
2b7b1427 | 4562 | * This will not return rules earlier marked for removal. */ |
bd53aa17 JR |
4563 | rule = rule_from_cls_rule(classifier_find_rule_exactly(&table->cls, &cr, |
4564 | ofm->version)); | |
39c94593 JR |
4565 | *old_rule = rule; |
4566 | if (!rule) { | |
c84d8691 JR |
4567 | /* Check for overlap, if requested. */ |
4568 | if (fm->flags & OFPUTIL_FF_CHECK_OVERLAP | |
bd53aa17 | 4569 | && classifier_rule_overlaps(&table->cls, &cr, ofm->version)) { |
c84d8691 JR |
4570 | cls_rule_destroy(&cr); |
4571 | return OFPERR_OFPFMFC_OVERLAP; | |
dd27be82 | 4572 | } |
b277c7cc | 4573 | |
c84d8691 | 4574 | /* If necessary, evict an existing rule to clear out space. */ |
6787a49f JR |
4575 | if (table->n_flows >= table->max_flows) { |
4576 | if (!choose_rule_to_evict(table, &rule)) { | |
4577 | error = OFPERR_OFPFMFC_TABLE_FULL; | |
4578 | cls_rule_destroy(&cr); | |
4579 | return error; | |
4580 | } | |
4581 | eviction_group_remove_rule(rule); | |
4582 | /* Marks '*old_rule' as an evicted rule rather than replaced rule. | |
4583 | */ | |
4584 | fm->delete_reason = OFPRR_EVICTION; | |
4585 | *old_rule = rule; | |
c09f755d | 4586 | } |
39c94593 JR |
4587 | } else { |
4588 | fm->modify_cookie = true; | |
4589 | } | |
81a76618 | 4590 | |
39c94593 JR |
4591 | /* Allocate new rule. */ |
4592 | error = replace_rule_create(ofproto, fm, &cr, table - ofproto->tables, | |
4593 | rule, new_rule); | |
4594 | if (error) { | |
4595 | return error; | |
064af421 | 4596 | } |
8037acb4 | 4597 | |
39c94593 | 4598 | get_conjunctions(fm, &conjs, &n_conjs); |
8be00367 | 4599 | replace_rule_start(ofproto, ofm->version, rule, *new_rule, conjs, n_conjs); |
39c94593 JR |
4600 | free(conjs); |
4601 | ||
c84d8691 JR |
4602 | return 0; |
4603 | } | |
1ebeaaa7 | 4604 | |
6787a49f | 4605 | /* Revert the effects of add_flow_start(). */ |
1f42be1c | 4606 | static void |
8be00367 | 4607 | add_flow_revert(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
1f42be1c JR |
4608 | OVS_REQUIRES(ofproto_mutex) |
4609 | { | |
8be00367 JR |
4610 | struct ofputil_flow_mod *fm = &ofm->fm; |
4611 | struct rule *old_rule = ofm->old_rules.stub[0]; | |
4612 | struct rule *new_rule = ofm->new_rules.stub[0]; | |
4613 | ||
6787a49f JR |
4614 | if (old_rule && fm->delete_reason == OFPRR_EVICTION) { |
4615 | /* Revert the eviction. */ | |
4616 | eviction_group_add_rule(old_rule); | |
4617 | } | |
4618 | ||
39c94593 | 4619 | replace_rule_revert(ofproto, old_rule, new_rule); |
1f42be1c JR |
4620 | } |
4621 | ||
39c94593 | 4622 | /* To be called after version bump. */ |
c84d8691 | 4623 | static void |
8be00367 JR |
4624 | add_flow_finish(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
4625 | const struct flow_mod_requester *req) | |
c84d8691 JR |
4626 | OVS_REQUIRES(ofproto_mutex) |
4627 | { | |
8be00367 JR |
4628 | struct ofputil_flow_mod *fm = &ofm->fm; |
4629 | struct rule *old_rule = ofm->old_rules.stub[0]; | |
4630 | struct rule *new_rule = ofm->new_rules.stub[0]; | |
39c94593 | 4631 | struct ovs_list dead_cookies = OVS_LIST_INITIALIZER(&dead_cookies); |
8037acb4 | 4632 | |
39c94593 JR |
4633 | replace_rule_finish(ofproto, fm, req, old_rule, new_rule, &dead_cookies); |
4634 | learned_cookies_flush(ofproto, &dead_cookies); | |
802f84ff | 4635 | |
39c94593 JR |
4636 | if (old_rule) { |
4637 | ovsrcu_postpone(remove_rule_rcu, old_rule); | |
4638 | } else { | |
8fd47924 | 4639 | if (minimask_get_vid_mask(new_rule->cr.match.mask) == VLAN_VID_MASK) { |
c84d8691 | 4640 | if (ofproto->vlan_bitmap) { |
8fd47924 | 4641 | uint16_t vid = miniflow_get_vid(new_rule->cr.match.flow); |
062fea06 | 4642 | |
c84d8691 JR |
4643 | if (!bitmap_is_set(ofproto->vlan_bitmap, vid)) { |
4644 | bitmap_set1(ofproto->vlan_bitmap, vid); | |
4645 | ofproto->vlans_changed = true; | |
4646 | } | |
4647 | } else { | |
834fe5cb BP |
4648 | ofproto->vlans_changed = true; |
4649 | } | |
834fe5cb | 4650 | } |
c84d8691 | 4651 | |
39c94593 | 4652 | ofmonitor_report(ofproto->connmgr, new_rule, NXFME_ADDED, 0, |
c84d8691 JR |
4653 | req ? req->ofconn : NULL, |
4654 | req ? req->request->xid : 0, NULL); | |
4655 | } | |
4656 | ||
39c94593 | 4657 | send_buffered_packet(req, fm->buffer_id, new_rule); |
c84d8691 | 4658 | } |
79eee1eb BP |
4659 | \f |
4660 | /* OFPFC_MODIFY and OFPFC_MODIFY_STRICT. */ | |
064af421 | 4661 | |
39c94593 JR |
4662 | /* Create a new rule based on attributes in 'fm', match in 'cr', 'table_id', |
4663 | * and 'old_rule'. Note that the rule is NOT inserted into a any data | |
4664 | * structures yet. Takes ownership of 'cr'. */ | |
90bf1e07 | 4665 | static enum ofperr |
39c94593 JR |
4666 | replace_rule_create(struct ofproto *ofproto, struct ofputil_flow_mod *fm, |
4667 | struct cls_rule *cr, uint8_t table_id, | |
4668 | struct rule *old_rule, struct rule **new_rule) | |
79eee1eb | 4669 | { |
39c94593 | 4670 | struct rule *rule; |
dd27be82 | 4671 | enum ofperr error; |
79eee1eb | 4672 | |
39c94593 JR |
4673 | /* Allocate new rule. */ |
4674 | rule = ofproto->ofproto_class->rule_alloc(); | |
4675 | if (!rule) { | |
4676 | cls_rule_destroy(cr); | |
4677 | VLOG_WARN_RL(&rl, "%s: failed to allocate a rule.", ofproto->name); | |
4678 | return OFPERR_OFPFMFC_UNKNOWN; | |
af822017 BP |
4679 | } |
4680 | ||
39c94593 JR |
4681 | /* Initialize base state. */ |
4682 | *CONST_CAST(struct ofproto **, &rule->ofproto) = ofproto; | |
4683 | cls_rule_move(CONST_CAST(struct cls_rule *, &rule->cr), cr); | |
4684 | ovs_refcount_init(&rule->ref_count); | |
4685 | rule->flow_cookie = fm->new_cookie; | |
4686 | rule->created = rule->modified = time_msec(); | |
834fe5cb | 4687 | |
39c94593 JR |
4688 | ovs_mutex_init(&rule->mutex); |
4689 | ovs_mutex_lock(&rule->mutex); | |
4690 | rule->idle_timeout = fm->idle_timeout; | |
4691 | rule->hard_timeout = fm->hard_timeout; | |
cf119e09 | 4692 | *CONST_CAST(uint16_t *, &rule->importance) = fm->importance; |
f695ebfa | 4693 | rule->removed_reason = OVS_OFPRR_NONE; |
834fe5cb | 4694 | |
39c94593 JR |
4695 | *CONST_CAST(uint8_t *, &rule->table_id) = table_id; |
4696 | rule->flags = fm->flags & OFPUTIL_FF_STATE; | |
4697 | *CONST_CAST(const struct rule_actions **, &rule->actions) | |
4698 | = rule_actions_create(fm->ofpacts, fm->ofpacts_len); | |
4699 | list_init(&rule->meter_list_node); | |
4700 | rule->eviction_group = NULL; | |
4701 | list_init(&rule->expirable); | |
4702 | rule->monitor_flags = 0; | |
4703 | rule->add_seqno = 0; | |
4704 | rule->modify_seqno = 0; | |
834fe5cb | 4705 | |
39c94593 | 4706 | /* Copy values from old rule for modify semantics. */ |
6787a49f | 4707 | if (old_rule && fm->delete_reason != OFPRR_EVICTION) { |
39c94593 JR |
4708 | bool change_cookie = (fm->modify_cookie |
4709 | && fm->new_cookie != OVS_BE64_MAX | |
4710 | && fm->new_cookie != old_rule->flow_cookie); | |
4711 | ||
4712 | ovs_mutex_lock(&old_rule->mutex); | |
4713 | if (fm->command != OFPFC_ADD) { | |
4714 | rule->idle_timeout = old_rule->idle_timeout; | |
4715 | rule->hard_timeout = old_rule->hard_timeout; | |
cf119e09 | 4716 | *CONST_CAST(uint16_t *, &rule->importance) = old_rule->importance; |
39c94593 JR |
4717 | rule->flags = old_rule->flags; |
4718 | rule->created = old_rule->created; | |
4719 | } | |
4720 | if (!change_cookie) { | |
4721 | rule->flow_cookie = old_rule->flow_cookie; | |
4722 | } | |
4723 | ovs_mutex_unlock(&old_rule->mutex); | |
dd27be82 | 4724 | } |
dd27be82 JR |
4725 | ovs_mutex_unlock(&rule->mutex); |
4726 | ||
39c94593 JR |
4727 | /* Construct rule, initializing derived state. */ |
4728 | error = ofproto->ofproto_class->rule_construct(rule); | |
4729 | if (error) { | |
4730 | ofproto_rule_destroy__(rule); | |
4731 | return error; | |
dd27be82 | 4732 | } |
b277c7cc | 4733 | |
39c94593 | 4734 | rule->removed = true; /* Not yet in ofproto data structures. */ |
dd27be82 | 4735 | |
39c94593 JR |
4736 | *new_rule = rule; |
4737 | return 0; | |
4738 | } | |
884e1dc4 | 4739 | |
39c94593 | 4740 | static void |
8be00367 | 4741 | replace_rule_start(struct ofproto *ofproto, cls_version_t version, |
39c94593 JR |
4742 | struct rule *old_rule, struct rule *new_rule, |
4743 | struct cls_conjunction *conjs, size_t n_conjs) | |
4744 | { | |
4745 | struct oftable *table = &ofproto->tables[new_rule->table_id]; | |
834fe5cb | 4746 | |
6787a49f | 4747 | /* 'old_rule' may be either an evicted rule or replaced rule. */ |
39c94593 JR |
4748 | if (old_rule) { |
4749 | /* Mark the old rule for removal in the next version. */ | |
8be00367 | 4750 | cls_rule_make_invisible_in_version(&old_rule->cr, version); |
d79e3d70 JR |
4751 | } else { |
4752 | table->n_flows++; | |
dd27be82 | 4753 | } |
39c94593 JR |
4754 | /* Insert flow to the classifier, so that later flow_mods may relate |
4755 | * to it. This is reversible, in case later errors require this to | |
4756 | * be reverted. */ | |
4757 | ofproto_rule_insert__(ofproto, new_rule); | |
4758 | /* Make the new rule visible for classifier lookups only from the next | |
4759 | * version. */ | |
bd53aa17 | 4760 | classifier_insert(&table->cls, &new_rule->cr, version, conjs, n_conjs); |
39c94593 JR |
4761 | } |
4762 | ||
4763 | static void replace_rule_revert(struct ofproto *ofproto, | |
4764 | struct rule *old_rule, struct rule *new_rule) | |
4765 | { | |
4766 | struct oftable *table = &ofproto->tables[new_rule->table_id]; | |
35f48b8b | 4767 | |
39c94593 | 4768 | if (old_rule) { |
d79e3d70 | 4769 | /* Restore the original visibility of the old rule. */ |
39c94593 | 4770 | cls_rule_restore_visibility(&old_rule->cr); |
d79e3d70 JR |
4771 | } else { |
4772 | /* Restore table's rule count. */ | |
4773 | table->n_flows--; | |
834fe5cb BP |
4774 | } |
4775 | ||
39c94593 JR |
4776 | /* Remove the new rule immediately. It was never visible to lookups. */ |
4777 | if (!classifier_remove(&table->cls, &new_rule->cr)) { | |
4778 | OVS_NOT_REACHED(); | |
5ecc9d81 | 4779 | } |
39c94593 JR |
4780 | ofproto_rule_remove__(ofproto, new_rule); |
4781 | /* The rule was not inserted to the ofproto provider, so we can | |
4782 | * release it without deleting it from the ofproto provider. */ | |
4783 | ofproto_rule_unref(new_rule); | |
dd27be82 | 4784 | } |
79eee1eb | 4785 | |
39c94593 | 4786 | /* Adds the 'new_rule', replacing the 'old_rule'. */ |
dd27be82 | 4787 | static void |
39c94593 JR |
4788 | replace_rule_finish(struct ofproto *ofproto, struct ofputil_flow_mod *fm, |
4789 | const struct flow_mod_requester *req, | |
4790 | struct rule *old_rule, struct rule *new_rule, | |
4791 | struct ovs_list *dead_cookies) | |
dd27be82 JR |
4792 | OVS_REQUIRES(ofproto_mutex) |
4793 | { | |
39c94593 | 4794 | bool forward_stats = !(fm->flags & OFPUTIL_FF_RESET_COUNTS); |
6787a49f JR |
4795 | struct rule *replaced_rule; |
4796 | ||
4797 | replaced_rule = fm->delete_reason != OFPRR_EVICTION ? old_rule : NULL; | |
dd27be82 | 4798 | |
6787a49f JR |
4799 | /* Insert the new flow to the ofproto provider. A non-NULL 'replaced_rule' |
4800 | * is a duplicate rule the 'new_rule' is replacing. The provider should | |
4801 | * link the stats from the old rule to the new one if 'forward_stats' is | |
4802 | * 'true'. The 'replaced_rule' will be deleted right after this call. */ | |
4803 | ofproto->ofproto_class->rule_insert(new_rule, replaced_rule, | |
4804 | forward_stats); | |
39c94593 JR |
4805 | learned_cookies_inc(ofproto, rule_get_actions(new_rule)); |
4806 | ||
4807 | if (old_rule) { | |
4808 | const struct rule_actions *old_actions = rule_get_actions(old_rule); | |
4809 | ||
39c94593 JR |
4810 | /* Remove the old rule from data structures. Removal from the |
4811 | * classifier and the deletion of the rule is RCU postponed by the | |
4812 | * caller. */ | |
4813 | ofproto_rule_remove__(ofproto, old_rule); | |
4814 | learned_cookies_dec(ofproto, old_actions, dead_cookies); | |
4815 | ||
6787a49f JR |
4816 | if (replaced_rule) { |
4817 | enum nx_flow_update_event event = fm->command == OFPFC_ADD | |
4818 | ? NXFME_ADDED : NXFME_MODIFIED; | |
4819 | ||
4820 | bool change_cookie = (fm->modify_cookie | |
4821 | && fm->new_cookie != OVS_BE64_MAX | |
4822 | && fm->new_cookie != old_rule->flow_cookie); | |
4823 | ||
4824 | bool change_actions = !ofpacts_equal(fm->ofpacts, | |
4825 | fm->ofpacts_len, | |
4826 | old_actions->ofpacts, | |
4827 | old_actions->ofpacts_len); | |
4828 | ||
4829 | if (event != NXFME_MODIFIED || change_actions || change_cookie) { | |
4830 | ofmonitor_report(ofproto->connmgr, new_rule, event, 0, | |
4831 | req ? req->ofconn : NULL, | |
4832 | req ? req->request->xid : 0, | |
4833 | change_actions ? old_actions : NULL); | |
4834 | } | |
4835 | } else { | |
4836 | /* XXX: This is slight duplication with delete_flows_finish__() */ | |
4837 | ||
f695ebfa | 4838 | old_rule->removed_reason = OFPRR_EVICTION; |
6787a49f JR |
4839 | |
4840 | ofmonitor_report(ofproto->connmgr, old_rule, NXFME_DELETED, | |
4841 | OFPRR_EVICTION, | |
39c94593 | 4842 | req ? req->ofconn : NULL, |
6787a49f | 4843 | req ? req->request->xid : 0, NULL); |
39c94593 | 4844 | } |
dd27be82 | 4845 | } |
9ed18e46 BP |
4846 | } |
4847 | ||
9387b970 | 4848 | static enum ofperr |
8be00367 | 4849 | modify_flows_start__(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
dd27be82 JR |
4850 | OVS_REQUIRES(ofproto_mutex) |
4851 | { | |
8be00367 JR |
4852 | struct ofputil_flow_mod *fm = &ofm->fm; |
4853 | struct rule_collection *old_rules = &ofm->old_rules; | |
4854 | struct rule_collection *new_rules = &ofm->new_rules; | |
dd27be82 JR |
4855 | enum ofperr error; |
4856 | ||
39c94593 JR |
4857 | rule_collection_init(new_rules); |
4858 | ||
4859 | if (old_rules->n > 0) { | |
4860 | struct cls_conjunction *conjs; | |
4861 | size_t n_conjs; | |
4862 | size_t i; | |
4863 | ||
4864 | /* Create a new 'modified' rule for each old rule. */ | |
4865 | for (i = 0; i < old_rules->n; i++) { | |
4866 | struct rule *old_rule = old_rules->rules[i]; | |
4867 | struct rule *new_rule; | |
4868 | struct cls_rule cr; | |
4869 | ||
bd53aa17 | 4870 | cls_rule_clone(&cr, &old_rule->cr); |
39c94593 JR |
4871 | error = replace_rule_create(ofproto, fm, &cr, old_rule->table_id, |
4872 | old_rule, &new_rule); | |
4873 | if (!error) { | |
4874 | rule_collection_add(new_rules, new_rule); | |
4875 | } else { | |
4876 | rule_collection_unref(new_rules); | |
4877 | rule_collection_destroy(new_rules); | |
4878 | return error; | |
4879 | } | |
4880 | } | |
4881 | ovs_assert(new_rules->n == old_rules->n); | |
4882 | ||
4883 | get_conjunctions(fm, &conjs, &n_conjs); | |
4884 | for (i = 0; i < old_rules->n; i++) { | |
8be00367 | 4885 | replace_rule_start(ofproto, ofm->version, old_rules->rules[i], |
39c94593 JR |
4886 | new_rules->rules[i], conjs, n_conjs); |
4887 | } | |
4888 | free(conjs); | |
d99f64d7 JR |
4889 | } else if (!(fm->cookie_mask != htonll(0) |
4890 | || fm->new_cookie == OVS_BE64_MAX)) { | |
39c94593 | 4891 | /* No match, add a new flow. */ |
8be00367 | 4892 | error = add_flow_start(ofproto, ofm); |
dd27be82 | 4893 | if (!error) { |
6787a49f JR |
4894 | ovs_assert(fm->delete_reason == OFPRR_EVICTION |
4895 | || !old_rules->rules[0]); | |
dd27be82 | 4896 | } |
39c94593 | 4897 | new_rules->n = 1; |
dd27be82 | 4898 | } else { |
d99f64d7 | 4899 | error = 0; |
dd27be82 | 4900 | } |
39c94593 | 4901 | |
dd27be82 JR |
4902 | return error; |
4903 | } | |
4904 | ||
90bf1e07 BP |
4905 | /* Implements OFPFC_MODIFY. Returns 0 on success or an OpenFlow error code on |
4906 | * failure. | |
9ed18e46 BP |
4907 | * |
4908 | * 'ofconn' is used to retrieve the packet buffer specified in fm->buffer_id, | |
4909 | * if any. */ | |
90bf1e07 | 4910 | static enum ofperr |
8be00367 | 4911 | modify_flows_start_loose(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
15aaf599 | 4912 | OVS_REQUIRES(ofproto_mutex) |
9ed18e46 | 4913 | { |
8be00367 JR |
4914 | struct ofputil_flow_mod *fm = &ofm->fm; |
4915 | struct rule_collection *old_rules = &ofm->old_rules; | |
a9b22b7f | 4916 | struct rule_criteria criteria; |
d51c8b71 | 4917 | enum ofperr error; |
9ed18e46 | 4918 | |
2b7b1427 | 4919 | rule_criteria_init(&criteria, fm->table_id, &fm->match, 0, CLS_MAX_VERSION, |
a9b22b7f | 4920 | fm->cookie, fm->cookie_mask, OFPP_ANY, OFPG11_ANY); |
dd51dae2 BP |
4921 | rule_criteria_require_rw(&criteria, |
4922 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
39c94593 | 4923 | error = collect_rules_loose(ofproto, &criteria, old_rules); |
a9b22b7f BP |
4924 | rule_criteria_destroy(&criteria); |
4925 | ||
a8e547c1 | 4926 | if (!error) { |
8be00367 | 4927 | error = modify_flows_start__(ofproto, ofm); |
d99f64d7 JR |
4928 | } |
4929 | ||
4930 | if (error) { | |
39c94593 | 4931 | rule_collection_destroy(old_rules); |
d99f64d7 JR |
4932 | } |
4933 | return error; | |
4934 | } | |
4935 | ||
1f42be1c | 4936 | static void |
8be00367 | 4937 | modify_flows_revert(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
1f42be1c JR |
4938 | OVS_REQUIRES(ofproto_mutex) |
4939 | { | |
8be00367 JR |
4940 | struct rule_collection *old_rules = &ofm->old_rules; |
4941 | struct rule_collection *new_rules = &ofm->new_rules; | |
4942 | ||
39c94593 JR |
4943 | /* Old rules were not changed yet, only need to revert new rules. */ |
4944 | if (old_rules->n == 0 && new_rules->n == 1) { | |
8be00367 | 4945 | add_flow_revert(ofproto, ofm); |
39c94593 JR |
4946 | } else if (old_rules->n > 0) { |
4947 | for (size_t i = 0; i < old_rules->n; i++) { | |
4948 | replace_rule_revert(ofproto, old_rules->rules[i], | |
4949 | new_rules->rules[i]); | |
4950 | } | |
4951 | rule_collection_destroy(new_rules); | |
4952 | rule_collection_destroy(old_rules); | |
1f42be1c | 4953 | } |
1f42be1c JR |
4954 | } |
4955 | ||
d99f64d7 | 4956 | static void |
8be00367 JR |
4957 | modify_flows_finish(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
4958 | const struct flow_mod_requester *req) | |
d99f64d7 JR |
4959 | OVS_REQUIRES(ofproto_mutex) |
4960 | { | |
8be00367 JR |
4961 | struct ofputil_flow_mod *fm = &ofm->fm; |
4962 | struct rule_collection *old_rules = &ofm->old_rules; | |
4963 | struct rule_collection *new_rules = &ofm->new_rules; | |
4964 | ||
39c94593 | 4965 | if (old_rules->n == 0 && new_rules->n == 1) { |
8be00367 | 4966 | add_flow_finish(ofproto, ofm, req); |
39c94593 JR |
4967 | } else if (old_rules->n > 0) { |
4968 | struct ovs_list dead_cookies = OVS_LIST_INITIALIZER(&dead_cookies); | |
4969 | ||
4970 | ovs_assert(new_rules->n == old_rules->n); | |
4971 | ||
4972 | for (size_t i = 0; i < old_rules->n; i++) { | |
4973 | replace_rule_finish(ofproto, fm, req, old_rules->rules[i], | |
4974 | new_rules->rules[i], &dead_cookies); | |
4975 | } | |
4976 | learned_cookies_flush(ofproto, &dead_cookies); | |
4977 | rule_collection_remove_postponed(old_rules); | |
4978 | ||
4979 | send_buffered_packet(req, fm->buffer_id, new_rules->rules[0]); | |
4980 | rule_collection_destroy(new_rules); | |
d99f64d7 | 4981 | } |
d99f64d7 JR |
4982 | } |
4983 | ||
79eee1eb | 4984 | /* Implements OFPFC_MODIFY_STRICT. Returns 0 on success or an OpenFlow error |
baae3d02 | 4985 | * code on failure. */ |
90bf1e07 | 4986 | static enum ofperr |
8be00367 | 4987 | modify_flow_start_strict(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
15aaf599 | 4988 | OVS_REQUIRES(ofproto_mutex) |
79eee1eb | 4989 | { |
8be00367 JR |
4990 | struct ofputil_flow_mod *fm = &ofm->fm; |
4991 | struct rule_collection *old_rules = &ofm->old_rules; | |
a9b22b7f | 4992 | struct rule_criteria criteria; |
d51c8b71 | 4993 | enum ofperr error; |
6c1491fb | 4994 | |
a9b22b7f | 4995 | rule_criteria_init(&criteria, fm->table_id, &fm->match, fm->priority, |
2b7b1427 JR |
4996 | CLS_MAX_VERSION, fm->cookie, fm->cookie_mask, OFPP_ANY, |
4997 | OFPG11_ANY); | |
dd51dae2 BP |
4998 | rule_criteria_require_rw(&criteria, |
4999 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
39c94593 | 5000 | error = collect_rules_strict(ofproto, &criteria, old_rules); |
a9b22b7f BP |
5001 | rule_criteria_destroy(&criteria); |
5002 | ||
a8e547c1 | 5003 | if (!error) { |
dd27be82 | 5004 | /* collect_rules_strict() can return max 1 rule. */ |
8be00367 | 5005 | error = modify_flows_start__(ofproto, ofm); |
d99f64d7 JR |
5006 | } |
5007 | ||
5008 | if (error) { | |
39c94593 | 5009 | rule_collection_destroy(old_rules); |
d99f64d7 JR |
5010 | } |
5011 | return error; | |
5012 | } | |
9ed18e46 BP |
5013 | \f |
5014 | /* OFPFC_DELETE implementation. */ | |
79eee1eb | 5015 | |
254750ce | 5016 | static void |
8be00367 | 5017 | delete_flows_start__(struct ofproto *ofproto, cls_version_t version, |
39c94593 JR |
5018 | const struct rule_collection *rules) |
5019 | OVS_REQUIRES(ofproto_mutex) | |
5020 | { | |
5021 | for (size_t i = 0; i < rules->n; i++) { | |
d79e3d70 JR |
5022 | struct rule *rule = rules->rules[i]; |
5023 | struct oftable *table = &ofproto->tables[rule->table_id]; | |
5024 | ||
5025 | table->n_flows--; | |
8be00367 | 5026 | cls_rule_make_invisible_in_version(&rule->cr, version); |
39c94593 JR |
5027 | } |
5028 | } | |
5029 | ||
5030 | static void | |
5031 | delete_flows_finish__(struct ofproto *ofproto, | |
5032 | struct rule_collection *rules, | |
5033 | enum ofp_flow_removed_reason reason, | |
5034 | const struct flow_mod_requester *req) | |
15aaf599 | 5035 | OVS_REQUIRES(ofproto_mutex) |
064af421 | 5036 | { |
9ca4a86f | 5037 | if (rules->n) { |
55951e15 | 5038 | struct ovs_list dead_cookies = OVS_LIST_INITIALIZER(&dead_cookies); |
79eee1eb | 5039 | |
39c94593 JR |
5040 | for (size_t i = 0; i < rules->n; i++) { |
5041 | struct rule *rule = rules->rules[i]; | |
79eee1eb | 5042 | |
f695ebfa JR |
5043 | /* This value will be used to send the flow removed message right |
5044 | * before the rule is actually destroyed. */ | |
5045 | rule->removed_reason = reason; | |
5046 | ||
9ca4a86f | 5047 | ofmonitor_report(ofproto->connmgr, rule, NXFME_DELETED, reason, |
c84d8691 JR |
5048 | req ? req->ofconn : NULL, |
5049 | req ? req->request->xid : 0, NULL); | |
802f84ff | 5050 | ofproto_rule_remove__(ofproto, rule); |
802f84ff JR |
5051 | learned_cookies_dec(ofproto, rule_get_actions(rule), |
5052 | &dead_cookies); | |
9ca4a86f | 5053 | } |
39c94593 JR |
5054 | rule_collection_remove_postponed(rules); |
5055 | ||
35f48b8b | 5056 | learned_cookies_flush(ofproto, &dead_cookies); |
39c94593 JR |
5057 | } |
5058 | } | |
5059 | ||
5060 | /* Deletes the rules listed in 'rules'. | |
5061 | * The deleted rules will become invisible to the lookups in the next version. | |
5062 | * Destroys 'rules'. */ | |
5063 | static void | |
5064 | delete_flows__(struct rule_collection *rules, | |
5065 | enum ofp_flow_removed_reason reason, | |
5066 | const struct flow_mod_requester *req) | |
5067 | OVS_REQUIRES(ofproto_mutex) | |
5068 | { | |
5069 | if (rules->n) { | |
5070 | struct ofproto *ofproto = rules->rules[0]->ofproto; | |
5071 | ||
8be00367 | 5072 | delete_flows_start__(ofproto, ofproto->tables_version + 1, rules); |
39c94593 JR |
5073 | ofproto_bump_tables_version(ofproto); |
5074 | delete_flows_finish__(ofproto, rules, reason, req); | |
9ca4a86f BP |
5075 | ofmonitor_flush(ofproto->connmgr); |
5076 | } | |
79eee1eb | 5077 | } |
79eee1eb BP |
5078 | |
5079 | /* Implements OFPFC_DELETE. */ | |
90bf1e07 | 5080 | static enum ofperr |
8be00367 | 5081 | delete_flows_start_loose(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
15aaf599 | 5082 | OVS_REQUIRES(ofproto_mutex) |
79eee1eb | 5083 | { |
8be00367 JR |
5084 | const struct ofputil_flow_mod *fm = &ofm->fm; |
5085 | struct rule_collection *rules = &ofm->old_rules; | |
a9b22b7f | 5086 | struct rule_criteria criteria; |
90bf1e07 | 5087 | enum ofperr error; |
064af421 | 5088 | |
2b7b1427 | 5089 | rule_criteria_init(&criteria, fm->table_id, &fm->match, 0, CLS_MAX_VERSION, |
39c94593 JR |
5090 | fm->cookie, fm->cookie_mask, fm->out_port, |
5091 | fm->out_group); | |
dd51dae2 BP |
5092 | rule_criteria_require_rw(&criteria, |
5093 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
ce59413f | 5094 | error = collect_rules_loose(ofproto, &criteria, rules); |
a9b22b7f BP |
5095 | rule_criteria_destroy(&criteria); |
5096 | ||
802f84ff | 5097 | if (!error) { |
8be00367 | 5098 | delete_flows_start__(ofproto, ofm->version, rules); |
a8e547c1 | 5099 | } |
a8e547c1 BP |
5100 | |
5101 | return error; | |
064af421 BP |
5102 | } |
5103 | ||
ce59413f | 5104 | static void |
8be00367 | 5105 | delete_flows_revert(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
ce59413f JR |
5106 | OVS_REQUIRES(ofproto_mutex) |
5107 | { | |
8be00367 JR |
5108 | struct rule_collection *rules = &ofm->old_rules; |
5109 | ||
1f42be1c | 5110 | for (size_t i = 0; i < rules->n; i++) { |
39c94593 | 5111 | struct rule *rule = rules->rules[i]; |
d79e3d70 JR |
5112 | struct oftable *table = &ofproto->tables[rule->table_id]; |
5113 | ||
5114 | /* Restore table's rule count. */ | |
5115 | table->n_flows++; | |
39c94593 JR |
5116 | |
5117 | /* Restore the original visibility of the rule. */ | |
5118 | cls_rule_restore_visibility(&rule->cr); | |
1f42be1c | 5119 | } |
ce59413f JR |
5120 | rule_collection_destroy(rules); |
5121 | } | |
5122 | ||
1f42be1c | 5123 | static void |
39c94593 | 5124 | delete_flows_finish(struct ofproto *ofproto, |
8be00367 JR |
5125 | struct ofproto_flow_mod *ofm, |
5126 | const struct flow_mod_requester *req) | |
15aaf599 | 5127 | OVS_REQUIRES(ofproto_mutex) |
79eee1eb | 5128 | { |
8be00367 JR |
5129 | delete_flows_finish__(ofproto, &ofm->old_rules, ofm->fm.delete_reason, |
5130 | req); | |
ce59413f JR |
5131 | } |
5132 | ||
5133 | /* Implements OFPFC_DELETE_STRICT. */ | |
5134 | static enum ofperr | |
4fcb2083 | 5135 | delete_flow_start_strict(struct ofproto *ofproto, |
8be00367 | 5136 | struct ofproto_flow_mod *ofm) |
ce59413f JR |
5137 | OVS_REQUIRES(ofproto_mutex) |
5138 | { | |
8be00367 JR |
5139 | const struct ofputil_flow_mod *fm = &ofm->fm; |
5140 | struct rule_collection *rules = &ofm->old_rules; | |
ce59413f JR |
5141 | struct rule_criteria criteria; |
5142 | enum ofperr error; | |
5143 | ||
a9b22b7f | 5144 | rule_criteria_init(&criteria, fm->table_id, &fm->match, fm->priority, |
2b7b1427 | 5145 | CLS_MAX_VERSION, fm->cookie, fm->cookie_mask, |
a9b22b7f | 5146 | fm->out_port, fm->out_group); |
dd51dae2 BP |
5147 | rule_criteria_require_rw(&criteria, |
5148 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
ce59413f | 5149 | error = collect_rules_strict(ofproto, &criteria, rules); |
a9b22b7f BP |
5150 | rule_criteria_destroy(&criteria); |
5151 | ||
802f84ff | 5152 | if (!error) { |
8be00367 | 5153 | delete_flows_start__(ofproto, ofm->version, rules); |
ce59413f JR |
5154 | } |
5155 | ||
5156 | return error; | |
5157 | } | |
5158 | ||
f695ebfa | 5159 | /* This may only be called by rule_destroy_cb()! */ |
abe529af | 5160 | static void |
f695ebfa JR |
5161 | ofproto_rule_send_removed(struct rule *rule) |
5162 | OVS_EXCLUDED(ofproto_mutex) | |
abe529af BP |
5163 | { |
5164 | struct ofputil_flow_removed fr; | |
dc437090 | 5165 | long long int used; |
abe529af | 5166 | |
5cb7a798 | 5167 | minimatch_expand(&rule->cr.match, &fr.match); |
81a76618 | 5168 | fr.priority = rule->cr.priority; |
f695ebfa JR |
5169 | |
5170 | ovs_mutex_lock(&ofproto_mutex); | |
abe529af | 5171 | fr.cookie = rule->flow_cookie; |
f695ebfa | 5172 | fr.reason = rule->removed_reason; |
95216219 | 5173 | fr.table_id = rule->table_id; |
65e0be10 BP |
5174 | calc_duration(rule->created, time_msec(), |
5175 | &fr.duration_sec, &fr.duration_nsec); | |
d10976b7 | 5176 | ovs_mutex_lock(&rule->mutex); |
abe529af | 5177 | fr.idle_timeout = rule->idle_timeout; |
fa2bad0f | 5178 | fr.hard_timeout = rule->hard_timeout; |
d10976b7 | 5179 | ovs_mutex_unlock(&rule->mutex); |
abe529af | 5180 | rule->ofproto->ofproto_class->rule_get_stats(rule, &fr.packet_count, |
dc437090 | 5181 | &fr.byte_count, &used); |
abe529af | 5182 | connmgr_send_flow_removed(rule->ofproto->connmgr, &fr); |
f695ebfa | 5183 | ovs_mutex_unlock(&ofproto_mutex); |
abe529af BP |
5184 | } |
5185 | ||
5186 | /* Sends an OpenFlow "flow removed" message with the given 'reason' (either | |
5187 | * OFPRR_HARD_TIMEOUT or OFPRR_IDLE_TIMEOUT), and then removes 'rule' from its | |
5188 | * ofproto. | |
5189 | * | |
5190 | * ofproto implementation ->run() functions should use this function to expire | |
5191 | * OpenFlow flows. */ | |
5192 | void | |
5193 | ofproto_rule_expire(struct rule *rule, uint8_t reason) | |
15aaf599 | 5194 | OVS_REQUIRES(ofproto_mutex) |
abe529af | 5195 | { |
802f84ff JR |
5196 | struct rule_collection rules; |
5197 | ||
5198 | rules.rules = rules.stub; | |
5199 | rules.n = 1; | |
5200 | rules.stub[0] = rule; | |
5201 | delete_flows__(&rules, reason, NULL); | |
79eee1eb | 5202 | } |
994c9973 BP |
5203 | |
5204 | /* Reduces '*timeout' to no more than 'max'. A value of zero in either case | |
5205 | * means "infinite". */ | |
5206 | static void | |
5207 | reduce_timeout(uint16_t max, uint16_t *timeout) | |
5208 | { | |
5209 | if (max && (!*timeout || *timeout > max)) { | |
5210 | *timeout = max; | |
5211 | } | |
5212 | } | |
5213 | ||
5214 | /* If 'idle_timeout' is nonzero, and 'rule' has no idle timeout or an idle | |
5215 | * timeout greater than 'idle_timeout', lowers 'rule''s idle timeout to | |
5216 | * 'idle_timeout' seconds. Similarly for 'hard_timeout'. | |
5217 | * | |
5218 | * Suitable for implementing OFPACT_FIN_TIMEOUT. */ | |
5219 | void | |
5220 | ofproto_rule_reduce_timeouts(struct rule *rule, | |
5221 | uint16_t idle_timeout, uint16_t hard_timeout) | |
d10976b7 | 5222 | OVS_EXCLUDED(ofproto_mutex, rule->mutex) |
994c9973 BP |
5223 | { |
5224 | if (!idle_timeout && !hard_timeout) { | |
5225 | return; | |
5226 | } | |
5227 | ||
abe7b10f | 5228 | ovs_mutex_lock(&ofproto_mutex); |
994c9973 BP |
5229 | if (list_is_empty(&rule->expirable)) { |
5230 | list_insert(&rule->ofproto->expirable, &rule->expirable); | |
5231 | } | |
abe7b10f | 5232 | ovs_mutex_unlock(&ofproto_mutex); |
994c9973 | 5233 | |
d10976b7 | 5234 | ovs_mutex_lock(&rule->mutex); |
994c9973 BP |
5235 | reduce_timeout(idle_timeout, &rule->idle_timeout); |
5236 | reduce_timeout(hard_timeout, &rule->hard_timeout); | |
d10976b7 | 5237 | ovs_mutex_unlock(&rule->mutex); |
994c9973 | 5238 | } |
79eee1eb | 5239 | \f |
90bf1e07 | 5240 | static enum ofperr |
2e4f5fcf | 5241 | handle_flow_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
15aaf599 | 5242 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 5243 | { |
a5b8d268 | 5244 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
8be00367 | 5245 | struct ofproto_flow_mod ofm; |
f25d0cf3 BP |
5246 | uint64_t ofpacts_stub[1024 / 8]; |
5247 | struct ofpbuf ofpacts; | |
90bf1e07 | 5248 | enum ofperr error; |
064af421 | 5249 | |
76589937 | 5250 | error = reject_slave_controller(ofconn); |
9deba63b | 5251 | if (error) { |
f25d0cf3 | 5252 | goto exit; |
9deba63b | 5253 | } |
3052b0c5 | 5254 | |
f25d0cf3 | 5255 | ofpbuf_use_stub(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); |
8be00367 | 5256 | error = ofputil_decode_flow_mod(&ofm.fm, oh, ofconn_get_protocol(ofconn), |
7e9f8266 BP |
5257 | &ofpacts, |
5258 | u16_to_ofp(ofproto->max_ports), | |
5259 | ofproto->n_tables); | |
5260 | if (!error) { | |
8be00367 JR |
5261 | error = ofproto_check_ofpacts(ofproto, ofm.fm.ofpacts, |
5262 | ofm.fm.ofpacts_len); | |
7e9f8266 | 5263 | } |
548de4dd | 5264 | if (!error) { |
baae3d02 BP |
5265 | struct flow_mod_requester req; |
5266 | ||
5267 | req.ofconn = ofconn; | |
c84d8691 | 5268 | req.request = oh; |
8be00367 | 5269 | error = handle_flow_mod__(ofproto, &ofm, &req); |
49bdc010 | 5270 | } |
a5b8d268 | 5271 | if (error) { |
f25d0cf3 | 5272 | goto exit_free_ofpacts; |
a5b8d268 | 5273 | } |
2e310801 | 5274 | |
8be00367 | 5275 | ofconn_report_flow_mod(ofconn, ofm.fm.command); |
a5b8d268 | 5276 | |
f25d0cf3 BP |
5277 | exit_free_ofpacts: |
5278 | ofpbuf_uninit(&ofpacts); | |
5279 | exit: | |
5280 | return error; | |
75a75043 BP |
5281 | } |
5282 | ||
90bf1e07 | 5283 | static enum ofperr |
8be00367 | 5284 | handle_flow_mod__(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
baae3d02 | 5285 | const struct flow_mod_requester *req) |
15aaf599 | 5286 | OVS_EXCLUDED(ofproto_mutex) |
75a75043 | 5287 | { |
35412852 | 5288 | enum ofperr error; |
75a75043 | 5289 | |
15aaf599 | 5290 | ovs_mutex_lock(&ofproto_mutex); |
8be00367 JR |
5291 | ofm->version = ofproto->tables_version + 1; |
5292 | error = ofproto_flow_mod_start(ofproto, ofm); | |
1f42be1c | 5293 | if (!error) { |
39c94593 | 5294 | ofproto_bump_tables_version(ofproto); |
8be00367 | 5295 | ofproto_flow_mod_finish(ofproto, ofm, req); |
3052b0c5 | 5296 | } |
baae3d02 | 5297 | ofmonitor_flush(ofproto->connmgr); |
15aaf599 | 5298 | ovs_mutex_unlock(&ofproto_mutex); |
35412852 BP |
5299 | |
5300 | run_rule_executes(ofproto); | |
5301 | return error; | |
3052b0c5 BP |
5302 | } |
5303 | ||
90bf1e07 | 5304 | static enum ofperr |
d1e2cf21 | 5305 | handle_role_request(struct ofconn *ofconn, const struct ofp_header *oh) |
9deba63b | 5306 | { |
f4f1ea7e BP |
5307 | struct ofputil_role_request request; |
5308 | struct ofputil_role_request reply; | |
9deba63b | 5309 | struct ofpbuf *buf; |
6ea4776b JR |
5310 | enum ofperr error; |
5311 | ||
f4f1ea7e | 5312 | error = ofputil_decode_role_message(oh, &request); |
6ea4776b JR |
5313 | if (error) { |
5314 | return error; | |
5315 | } | |
9deba63b | 5316 | |
f4f1ea7e | 5317 | if (request.role != OFPCR12_ROLE_NOCHANGE) { |
f4f1ea7e BP |
5318 | if (request.have_generation_id |
5319 | && !ofconn_set_master_election_id(ofconn, request.generation_id)) { | |
5320 | return OFPERR_OFPRRFC_STALE; | |
6ea4776b | 5321 | } |
6ea4776b | 5322 | |
f4f1ea7e BP |
5323 | ofconn_set_role(ofconn, request.role); |
5324 | } | |
9deba63b | 5325 | |
f4f1ea7e | 5326 | reply.role = ofconn_get_role(ofconn); |
147cc9d3 BP |
5327 | reply.have_generation_id = ofconn_get_master_election_id( |
5328 | ofconn, &reply.generation_id); | |
f4f1ea7e | 5329 | buf = ofputil_encode_role_reply(oh, &reply); |
b0421aa2 | 5330 | ofconn_send_reply(ofconn, buf); |
9deba63b BP |
5331 | |
5332 | return 0; | |
5333 | } | |
5334 | ||
90bf1e07 | 5335 | static enum ofperr |
6c1491fb BP |
5336 | handle_nxt_flow_mod_table_id(struct ofconn *ofconn, |
5337 | const struct ofp_header *oh) | |
5338 | { | |
982697a4 | 5339 | const struct nx_flow_mod_table_id *msg = ofpmsg_body(oh); |
27527aa0 BP |
5340 | enum ofputil_protocol cur, next; |
5341 | ||
5342 | cur = ofconn_get_protocol(ofconn); | |
5343 | next = ofputil_protocol_set_tid(cur, msg->set != 0); | |
5344 | ofconn_set_protocol(ofconn, next); | |
6c1491fb | 5345 | |
6c1491fb BP |
5346 | return 0; |
5347 | } | |
5348 | ||
90bf1e07 | 5349 | static enum ofperr |
d1e2cf21 | 5350 | handle_nxt_set_flow_format(struct ofconn *ofconn, const struct ofp_header *oh) |
09246b99 | 5351 | { |
982697a4 | 5352 | const struct nx_set_flow_format *msg = ofpmsg_body(oh); |
27527aa0 BP |
5353 | enum ofputil_protocol cur, next; |
5354 | enum ofputil_protocol next_base; | |
09246b99 | 5355 | |
27527aa0 BP |
5356 | next_base = ofputil_nx_flow_format_to_protocol(ntohl(msg->format)); |
5357 | if (!next_base) { | |
90bf1e07 | 5358 | return OFPERR_OFPBRC_EPERM; |
09246b99 | 5359 | } |
7ee20df1 | 5360 | |
27527aa0 BP |
5361 | cur = ofconn_get_protocol(ofconn); |
5362 | next = ofputil_protocol_set_base(cur, next_base); | |
27527aa0 | 5363 | ofconn_set_protocol(ofconn, next); |
b20f4073 | 5364 | |
7ee20df1 | 5365 | return 0; |
09246b99 BP |
5366 | } |
5367 | ||
90bf1e07 | 5368 | static enum ofperr |
54834960 EJ |
5369 | handle_nxt_set_packet_in_format(struct ofconn *ofconn, |
5370 | const struct ofp_header *oh) | |
5371 | { | |
982697a4 | 5372 | const struct nx_set_packet_in_format *msg = ofpmsg_body(oh); |
54834960 EJ |
5373 | uint32_t format; |
5374 | ||
54834960 | 5375 | format = ntohl(msg->format); |
a15f0eeb | 5376 | if (format != NXPIF_OPENFLOW10 && format != NXPIF_NXM) { |
90bf1e07 | 5377 | return OFPERR_OFPBRC_EPERM; |
54834960 EJ |
5378 | } |
5379 | ||
54834960 EJ |
5380 | ofconn_set_packet_in_format(ofconn, format); |
5381 | return 0; | |
5382 | } | |
5383 | ||
80d5aefd BP |
5384 | static enum ofperr |
5385 | handle_nxt_set_async_config(struct ofconn *ofconn, const struct ofp_header *oh) | |
5386 | { | |
982697a4 | 5387 | const struct nx_async_config *msg = ofpmsg_body(oh); |
80d5aefd BP |
5388 | uint32_t master[OAM_N_TYPES]; |
5389 | uint32_t slave[OAM_N_TYPES]; | |
5390 | ||
5391 | master[OAM_PACKET_IN] = ntohl(msg->packet_in_mask[0]); | |
5392 | master[OAM_PORT_STATUS] = ntohl(msg->port_status_mask[0]); | |
5393 | master[OAM_FLOW_REMOVED] = ntohl(msg->flow_removed_mask[0]); | |
5394 | ||
5395 | slave[OAM_PACKET_IN] = ntohl(msg->packet_in_mask[1]); | |
5396 | slave[OAM_PORT_STATUS] = ntohl(msg->port_status_mask[1]); | |
5397 | slave[OAM_FLOW_REMOVED] = ntohl(msg->flow_removed_mask[1]); | |
5398 | ||
5399 | ofconn_set_async_config(ofconn, master, slave); | |
4550b647 MM |
5400 | if (ofconn_get_type(ofconn) == OFCONN_SERVICE && |
5401 | !ofconn_get_miss_send_len(ofconn)) { | |
5402 | ofconn_set_miss_send_len(ofconn, OFP_DEFAULT_MISS_SEND_LEN); | |
5403 | } | |
80d5aefd BP |
5404 | |
5405 | return 0; | |
5406 | } | |
5407 | ||
c423b3b3 AC |
5408 | static enum ofperr |
5409 | handle_nxt_get_async_request(struct ofconn *ofconn, const struct ofp_header *oh) | |
5410 | { | |
5411 | struct ofpbuf *buf; | |
5412 | uint32_t master[OAM_N_TYPES]; | |
5413 | uint32_t slave[OAM_N_TYPES]; | |
5414 | struct nx_async_config *msg; | |
5415 | ||
5416 | ofconn_get_async_config(ofconn, master, slave); | |
5417 | buf = ofpraw_alloc_reply(OFPRAW_OFPT13_GET_ASYNC_REPLY, oh, 0); | |
5418 | msg = ofpbuf_put_zeros(buf, sizeof *msg); | |
5419 | ||
5420 | msg->packet_in_mask[0] = htonl(master[OAM_PACKET_IN]); | |
5421 | msg->port_status_mask[0] = htonl(master[OAM_PORT_STATUS]); | |
5422 | msg->flow_removed_mask[0] = htonl(master[OAM_FLOW_REMOVED]); | |
5423 | ||
5424 | msg->packet_in_mask[1] = htonl(slave[OAM_PACKET_IN]); | |
5425 | msg->port_status_mask[1] = htonl(slave[OAM_PORT_STATUS]); | |
5426 | msg->flow_removed_mask[1] = htonl(slave[OAM_FLOW_REMOVED]); | |
5427 | ||
5428 | ofconn_send_reply(ofconn, buf); | |
5429 | ||
5430 | return 0; | |
5431 | } | |
5432 | ||
a7349929 BP |
5433 | static enum ofperr |
5434 | handle_nxt_set_controller_id(struct ofconn *ofconn, | |
5435 | const struct ofp_header *oh) | |
5436 | { | |
982697a4 | 5437 | const struct nx_controller_id *nci = ofpmsg_body(oh); |
a7349929 | 5438 | |
a7349929 BP |
5439 | if (!is_all_zeros(nci->zero, sizeof nci->zero)) { |
5440 | return OFPERR_NXBRC_MUST_BE_ZERO; | |
5441 | } | |
5442 | ||
5443 | ofconn_set_controller_id(ofconn, ntohs(nci->controller_id)); | |
5444 | return 0; | |
5445 | } | |
5446 | ||
90bf1e07 | 5447 | static enum ofperr |
d1e2cf21 | 5448 | handle_barrier_request(struct ofconn *ofconn, const struct ofp_header *oh) |
246e61ea | 5449 | { |
246e61ea JP |
5450 | struct ofpbuf *buf; |
5451 | ||
982697a4 BP |
5452 | buf = ofpraw_alloc_reply((oh->version == OFP10_VERSION |
5453 | ? OFPRAW_OFPT10_BARRIER_REPLY | |
5454 | : OFPRAW_OFPT11_BARRIER_REPLY), oh, 0); | |
b0421aa2 | 5455 | ofconn_send_reply(ofconn, buf); |
246e61ea JP |
5456 | return 0; |
5457 | } | |
5458 | ||
2b07c8b1 BP |
5459 | static void |
5460 | ofproto_compose_flow_refresh_update(const struct rule *rule, | |
5461 | enum nx_flow_monitor_flags flags, | |
ca6ba700 | 5462 | struct ovs_list *msgs) |
15aaf599 | 5463 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 | 5464 | { |
6f00e29b | 5465 | const struct rule_actions *actions; |
2b07c8b1 | 5466 | struct ofputil_flow_update fu; |
5cb7a798 | 5467 | struct match match; |
2b07c8b1 | 5468 | |
2b07c8b1 BP |
5469 | fu.event = (flags & (NXFMF_INITIAL | NXFMF_ADD) |
5470 | ? NXFME_ADDED : NXFME_MODIFIED); | |
5471 | fu.reason = 0; | |
d10976b7 | 5472 | ovs_mutex_lock(&rule->mutex); |
2b07c8b1 BP |
5473 | fu.idle_timeout = rule->idle_timeout; |
5474 | fu.hard_timeout = rule->hard_timeout; | |
d10976b7 | 5475 | ovs_mutex_unlock(&rule->mutex); |
2b07c8b1 BP |
5476 | fu.table_id = rule->table_id; |
5477 | fu.cookie = rule->flow_cookie; | |
5cb7a798 BP |
5478 | minimatch_expand(&rule->cr.match, &match); |
5479 | fu.match = &match; | |
6b140a4e | 5480 | fu.priority = rule->cr.priority; |
6f00e29b | 5481 | |
b20f4073 | 5482 | actions = flags & NXFMF_ACTIONS ? rule_get_actions(rule) : NULL; |
6f00e29b BP |
5483 | fu.ofpacts = actions ? actions->ofpacts : NULL; |
5484 | fu.ofpacts_len = actions ? actions->ofpacts_len : 0; | |
2b07c8b1 BP |
5485 | |
5486 | if (list_is_empty(msgs)) { | |
5487 | ofputil_start_flow_update(msgs); | |
5488 | } | |
5489 | ofputil_append_flow_update(&fu, msgs); | |
5490 | } | |
5491 | ||
5492 | void | |
a8e547c1 | 5493 | ofmonitor_compose_refresh_updates(struct rule_collection *rules, |
ca6ba700 | 5494 | struct ovs_list *msgs) |
15aaf599 | 5495 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 | 5496 | { |
a8e547c1 | 5497 | size_t i; |
2b07c8b1 | 5498 | |
a8e547c1 BP |
5499 | for (i = 0; i < rules->n; i++) { |
5500 | struct rule *rule = rules->rules[i]; | |
2b07c8b1 BP |
5501 | enum nx_flow_monitor_flags flags = rule->monitor_flags; |
5502 | rule->monitor_flags = 0; | |
5503 | ||
5504 | ofproto_compose_flow_refresh_update(rule, flags, msgs); | |
5505 | } | |
5506 | } | |
5507 | ||
5508 | static void | |
5509 | ofproto_collect_ofmonitor_refresh_rule(const struct ofmonitor *m, | |
5510 | struct rule *rule, uint64_t seqno, | |
a8e547c1 | 5511 | struct rule_collection *rules) |
15aaf599 | 5512 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
5513 | { |
5514 | enum nx_flow_monitor_flags update; | |
5515 | ||
5e8b38b0 | 5516 | if (rule_is_hidden(rule)) { |
2b07c8b1 BP |
5517 | return; |
5518 | } | |
5519 | ||
b20f4073 | 5520 | if (!ofproto_rule_has_out_port(rule, m->out_port)) { |
2b07c8b1 BP |
5521 | return; |
5522 | } | |
5523 | ||
5524 | if (seqno) { | |
5525 | if (rule->add_seqno > seqno) { | |
5526 | update = NXFMF_ADD | NXFMF_MODIFY; | |
5527 | } else if (rule->modify_seqno > seqno) { | |
5528 | update = NXFMF_MODIFY; | |
5529 | } else { | |
5530 | return; | |
5531 | } | |
5532 | ||
5533 | if (!(m->flags & update)) { | |
5534 | return; | |
5535 | } | |
5536 | } else { | |
5537 | update = NXFMF_INITIAL; | |
5538 | } | |
5539 | ||
5540 | if (!rule->monitor_flags) { | |
a8e547c1 | 5541 | rule_collection_add(rules, rule); |
2b07c8b1 BP |
5542 | } |
5543 | rule->monitor_flags |= update | (m->flags & NXFMF_ACTIONS); | |
5544 | } | |
5545 | ||
5546 | static void | |
5547 | ofproto_collect_ofmonitor_refresh_rules(const struct ofmonitor *m, | |
5548 | uint64_t seqno, | |
a8e547c1 | 5549 | struct rule_collection *rules) |
15aaf599 | 5550 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
5551 | { |
5552 | const struct ofproto *ofproto = ofconn_get_ofproto(m->ofconn); | |
2b07c8b1 | 5553 | const struct oftable *table; |
81a76618 | 5554 | struct cls_rule target; |
2b07c8b1 | 5555 | |
bd53aa17 | 5556 | cls_rule_init_from_minimatch(&target, &m->match, 0); |
2b07c8b1 | 5557 | FOR_EACH_MATCHING_TABLE (table, m->table_id, ofproto) { |
2b07c8b1 BP |
5558 | struct rule *rule; |
5559 | ||
bd53aa17 | 5560 | CLS_FOR_EACH_TARGET (rule, cr, &table->cls, &target, CLS_MAX_VERSION) { |
2b07c8b1 BP |
5561 | ofproto_collect_ofmonitor_refresh_rule(m, rule, seqno, rules); |
5562 | } | |
5563 | } | |
48d28ac1 | 5564 | cls_rule_destroy(&target); |
2b07c8b1 BP |
5565 | } |
5566 | ||
5567 | static void | |
5568 | ofproto_collect_ofmonitor_initial_rules(struct ofmonitor *m, | |
a8e547c1 | 5569 | struct rule_collection *rules) |
15aaf599 | 5570 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
5571 | { |
5572 | if (m->flags & NXFMF_INITIAL) { | |
5573 | ofproto_collect_ofmonitor_refresh_rules(m, 0, rules); | |
5574 | } | |
5575 | } | |
5576 | ||
5577 | void | |
5578 | ofmonitor_collect_resume_rules(struct ofmonitor *m, | |
a8e547c1 | 5579 | uint64_t seqno, struct rule_collection *rules) |
15aaf599 | 5580 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
5581 | { |
5582 | ofproto_collect_ofmonitor_refresh_rules(m, seqno, rules); | |
5583 | } | |
5584 | ||
7b900689 SH |
5585 | static enum ofperr |
5586 | flow_monitor_delete(struct ofconn *ofconn, uint32_t id) | |
5587 | OVS_REQUIRES(ofproto_mutex) | |
5588 | { | |
5589 | struct ofmonitor *m; | |
5590 | enum ofperr error; | |
5591 | ||
5592 | m = ofmonitor_lookup(ofconn, id); | |
5593 | if (m) { | |
5594 | ofmonitor_destroy(m); | |
5595 | error = 0; | |
5596 | } else { | |
5597 | error = OFPERR_OFPMOFC_UNKNOWN_MONITOR; | |
5598 | } | |
5599 | ||
5600 | return error; | |
5601 | } | |
5602 | ||
2b07c8b1 | 5603 | static enum ofperr |
982697a4 | 5604 | handle_flow_monitor_request(struct ofconn *ofconn, const struct ofp_header *oh) |
15aaf599 | 5605 | OVS_EXCLUDED(ofproto_mutex) |
2b07c8b1 BP |
5606 | { |
5607 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
5608 | struct ofmonitor **monitors; | |
5609 | size_t n_monitors, allocated_monitors; | |
a8e547c1 | 5610 | struct rule_collection rules; |
ca6ba700 | 5611 | struct ovs_list replies; |
2b07c8b1 | 5612 | enum ofperr error; |
2b07c8b1 BP |
5613 | struct ofpbuf b; |
5614 | size_t i; | |
5615 | ||
982697a4 | 5616 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
2b07c8b1 BP |
5617 | monitors = NULL; |
5618 | n_monitors = allocated_monitors = 0; | |
15aaf599 BP |
5619 | |
5620 | ovs_mutex_lock(&ofproto_mutex); | |
2b07c8b1 BP |
5621 | for (;;) { |
5622 | struct ofputil_flow_monitor_request request; | |
5623 | struct ofmonitor *m; | |
5624 | int retval; | |
5625 | ||
5626 | retval = ofputil_decode_flow_monitor_request(&request, &b); | |
5627 | if (retval == EOF) { | |
5628 | break; | |
5629 | } else if (retval) { | |
5630 | error = retval; | |
5631 | goto error; | |
5632 | } | |
5633 | ||
5634 | if (request.table_id != 0xff | |
5635 | && request.table_id >= ofproto->n_tables) { | |
5636 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
5637 | goto error; | |
5638 | } | |
5639 | ||
5640 | error = ofmonitor_create(&request, ofconn, &m); | |
5641 | if (error) { | |
5642 | goto error; | |
5643 | } | |
5644 | ||
5645 | if (n_monitors >= allocated_monitors) { | |
5646 | monitors = x2nrealloc(monitors, &allocated_monitors, | |
5647 | sizeof *monitors); | |
5648 | } | |
5649 | monitors[n_monitors++] = m; | |
5650 | } | |
5651 | ||
a8e547c1 | 5652 | rule_collection_init(&rules); |
2b07c8b1 BP |
5653 | for (i = 0; i < n_monitors; i++) { |
5654 | ofproto_collect_ofmonitor_initial_rules(monitors[i], &rules); | |
5655 | } | |
5656 | ||
982697a4 | 5657 | ofpmp_init(&replies, oh); |
2b07c8b1 | 5658 | ofmonitor_compose_refresh_updates(&rules, &replies); |
15aaf599 BP |
5659 | ovs_mutex_unlock(&ofproto_mutex); |
5660 | ||
a8e547c1 BP |
5661 | rule_collection_destroy(&rules); |
5662 | ||
2b07c8b1 | 5663 | ofconn_send_replies(ofconn, &replies); |
2b07c8b1 BP |
5664 | free(monitors); |
5665 | ||
5666 | return 0; | |
5667 | ||
5668 | error: | |
5669 | for (i = 0; i < n_monitors; i++) { | |
5670 | ofmonitor_destroy(monitors[i]); | |
5671 | } | |
5672 | free(monitors); | |
4cd1bc9d BP |
5673 | ovs_mutex_unlock(&ofproto_mutex); |
5674 | ||
2b07c8b1 BP |
5675 | return error; |
5676 | } | |
5677 | ||
5678 | static enum ofperr | |
5679 | handle_flow_monitor_cancel(struct ofconn *ofconn, const struct ofp_header *oh) | |
15aaf599 | 5680 | OVS_EXCLUDED(ofproto_mutex) |
2b07c8b1 | 5681 | { |
15aaf599 | 5682 | enum ofperr error; |
2b07c8b1 BP |
5683 | uint32_t id; |
5684 | ||
5685 | id = ofputil_decode_flow_monitor_cancel(oh); | |
15aaf599 BP |
5686 | |
5687 | ovs_mutex_lock(&ofproto_mutex); | |
7b900689 | 5688 | error = flow_monitor_delete(ofconn, id); |
15aaf599 | 5689 | ovs_mutex_unlock(&ofproto_mutex); |
2b07c8b1 | 5690 | |
15aaf599 | 5691 | return error; |
2b07c8b1 BP |
5692 | } |
5693 | ||
9cae45dc JR |
5694 | /* Meters implementation. |
5695 | * | |
5696 | * Meter table entry, indexed by the OpenFlow meter_id. | |
9cae45dc JR |
5697 | * 'created' is used to compute the duration for meter stats. |
5698 | * 'list rules' is needed so that we can delete the dependent rules when the | |
5699 | * meter table entry is deleted. | |
5700 | * 'provider_meter_id' is for the provider's private use. | |
5701 | */ | |
5702 | struct meter { | |
5703 | long long int created; /* Time created. */ | |
ca6ba700 | 5704 | struct ovs_list rules; /* List of "struct rule_dpif"s. */ |
9cae45dc JR |
5705 | ofproto_meter_id provider_meter_id; |
5706 | uint16_t flags; /* Meter flags. */ | |
5707 | uint16_t n_bands; /* Number of meter bands. */ | |
5708 | struct ofputil_meter_band *bands; | |
5709 | }; | |
5710 | ||
5711 | /* | |
5712 | * This is used in instruction validation at flow set-up time, | |
5713 | * as flows may not use non-existing meters. | |
9cae45dc JR |
5714 | * Return value of UINT32_MAX signifies an invalid meter. |
5715 | */ | |
65efd2ab JR |
5716 | static uint32_t |
5717 | get_provider_meter_id(const struct ofproto *ofproto, uint32_t of_meter_id) | |
9cae45dc JR |
5718 | { |
5719 | if (of_meter_id && of_meter_id <= ofproto->meter_features.max_meters) { | |
5720 | const struct meter *meter = ofproto->meters[of_meter_id]; | |
5721 | if (meter) { | |
5722 | return meter->provider_meter_id.uint32; | |
5723 | } | |
5724 | } | |
5725 | return UINT32_MAX; | |
5726 | } | |
5727 | ||
062fea06 BP |
5728 | /* Finds the meter invoked by 'rule''s actions and adds 'rule' to the meter's |
5729 | * list of rules. */ | |
5730 | static void | |
5731 | meter_insert_rule(struct rule *rule) | |
5732 | { | |
5733 | const struct rule_actions *a = rule_get_actions(rule); | |
5734 | uint32_t meter_id = ofpacts_get_meter(a->ofpacts, a->ofpacts_len); | |
5735 | struct meter *meter = rule->ofproto->meters[meter_id]; | |
5736 | ||
5737 | list_insert(&meter->rules, &rule->meter_list_node); | |
5738 | } | |
5739 | ||
9cae45dc JR |
5740 | static void |
5741 | meter_update(struct meter *meter, const struct ofputil_meter_config *config) | |
5742 | { | |
5743 | free(meter->bands); | |
5744 | ||
5745 | meter->flags = config->flags; | |
5746 | meter->n_bands = config->n_bands; | |
5747 | meter->bands = xmemdup(config->bands, | |
5748 | config->n_bands * sizeof *meter->bands); | |
5749 | } | |
5750 | ||
5751 | static struct meter * | |
5752 | meter_create(const struct ofputil_meter_config *config, | |
5753 | ofproto_meter_id provider_meter_id) | |
5754 | { | |
5755 | struct meter *meter; | |
5756 | ||
5757 | meter = xzalloc(sizeof *meter); | |
5758 | meter->provider_meter_id = provider_meter_id; | |
5759 | meter->created = time_msec(); | |
5760 | list_init(&meter->rules); | |
5761 | ||
5762 | meter_update(meter, config); | |
5763 | ||
5764 | return meter; | |
5765 | } | |
5766 | ||
6b3f7f02 JR |
5767 | static void |
5768 | meter_delete(struct ofproto *ofproto, uint32_t first, uint32_t last) | |
15aaf599 | 5769 | OVS_REQUIRES(ofproto_mutex) |
6b3f7f02 JR |
5770 | { |
5771 | uint32_t mid; | |
5772 | for (mid = first; mid <= last; ++mid) { | |
5773 | struct meter *meter = ofproto->meters[mid]; | |
5774 | if (meter) { | |
5775 | ofproto->meters[mid] = NULL; | |
5776 | ofproto->ofproto_class->meter_del(ofproto, | |
5777 | meter->provider_meter_id); | |
5778 | free(meter->bands); | |
5779 | free(meter); | |
5780 | } | |
5781 | } | |
5782 | } | |
5783 | ||
9cae45dc JR |
5784 | static enum ofperr |
5785 | handle_add_meter(struct ofproto *ofproto, struct ofputil_meter_mod *mm) | |
5786 | { | |
5787 | ofproto_meter_id provider_meter_id = { UINT32_MAX }; | |
5788 | struct meter **meterp = &ofproto->meters[mm->meter.meter_id]; | |
5789 | enum ofperr error; | |
5790 | ||
5791 | if (*meterp) { | |
5792 | return OFPERR_OFPMMFC_METER_EXISTS; | |
5793 | } | |
5794 | ||
5795 | error = ofproto->ofproto_class->meter_set(ofproto, &provider_meter_id, | |
5796 | &mm->meter); | |
5797 | if (!error) { | |
5798 | ovs_assert(provider_meter_id.uint32 != UINT32_MAX); | |
5799 | *meterp = meter_create(&mm->meter, provider_meter_id); | |
5800 | } | |
f0f8c6c2 | 5801 | return error; |
9cae45dc JR |
5802 | } |
5803 | ||
5804 | static enum ofperr | |
5805 | handle_modify_meter(struct ofproto *ofproto, struct ofputil_meter_mod *mm) | |
5806 | { | |
5807 | struct meter *meter = ofproto->meters[mm->meter.meter_id]; | |
5808 | enum ofperr error; | |
e555eb7c | 5809 | uint32_t provider_meter_id; |
9cae45dc JR |
5810 | |
5811 | if (!meter) { | |
5812 | return OFPERR_OFPMMFC_UNKNOWN_METER; | |
5813 | } | |
5814 | ||
e555eb7c | 5815 | provider_meter_id = meter->provider_meter_id.uint32; |
9cae45dc JR |
5816 | error = ofproto->ofproto_class->meter_set(ofproto, |
5817 | &meter->provider_meter_id, | |
5818 | &mm->meter); | |
e555eb7c | 5819 | ovs_assert(meter->provider_meter_id.uint32 == provider_meter_id); |
9cae45dc JR |
5820 | if (!error) { |
5821 | meter_update(meter, &mm->meter); | |
5822 | } | |
5823 | return error; | |
5824 | } | |
5825 | ||
5826 | static enum ofperr | |
baae3d02 | 5827 | handle_delete_meter(struct ofconn *ofconn, struct ofputil_meter_mod *mm) |
15aaf599 | 5828 | OVS_EXCLUDED(ofproto_mutex) |
9cae45dc JR |
5829 | { |
5830 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
5831 | uint32_t meter_id = mm->meter.meter_id; | |
a8e547c1 BP |
5832 | struct rule_collection rules; |
5833 | enum ofperr error = 0; | |
9cae45dc | 5834 | uint32_t first, last; |
9cae45dc JR |
5835 | |
5836 | if (meter_id == OFPM13_ALL) { | |
5837 | first = 1; | |
5838 | last = ofproto->meter_features.max_meters; | |
5839 | } else { | |
5840 | if (!meter_id || meter_id > ofproto->meter_features.max_meters) { | |
5841 | return 0; | |
5842 | } | |
5843 | first = last = meter_id; | |
5844 | } | |
5845 | ||
5846 | /* First delete the rules that use this meter. If any of those rules are | |
5847 | * currently being modified, postpone the whole operation until later. */ | |
a8e547c1 | 5848 | rule_collection_init(&rules); |
15aaf599 | 5849 | ovs_mutex_lock(&ofproto_mutex); |
9cae45dc JR |
5850 | for (meter_id = first; meter_id <= last; ++meter_id) { |
5851 | struct meter *meter = ofproto->meters[meter_id]; | |
5852 | if (meter && !list_is_empty(&meter->rules)) { | |
5853 | struct rule *rule; | |
5854 | ||
5855 | LIST_FOR_EACH (rule, meter_list_node, &meter->rules) { | |
a8e547c1 | 5856 | rule_collection_add(&rules, rule); |
9cae45dc JR |
5857 | } |
5858 | } | |
5859 | } | |
802f84ff | 5860 | delete_flows__(&rules, OFPRR_METER_DELETE, NULL); |
9cae45dc JR |
5861 | |
5862 | /* Delete the meters. */ | |
6b3f7f02 | 5863 | meter_delete(ofproto, first, last); |
9cae45dc | 5864 | |
15aaf599 | 5865 | ovs_mutex_unlock(&ofproto_mutex); |
a8e547c1 BP |
5866 | |
5867 | return error; | |
9cae45dc JR |
5868 | } |
5869 | ||
5870 | static enum ofperr | |
5871 | handle_meter_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
5872 | { | |
5873 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
5874 | struct ofputil_meter_mod mm; | |
5875 | uint64_t bands_stub[256 / 8]; | |
5876 | struct ofpbuf bands; | |
5877 | uint32_t meter_id; | |
5878 | enum ofperr error; | |
5879 | ||
5880 | error = reject_slave_controller(ofconn); | |
5881 | if (error) { | |
5882 | return error; | |
5883 | } | |
5884 | ||
5885 | ofpbuf_use_stub(&bands, bands_stub, sizeof bands_stub); | |
5886 | ||
5887 | error = ofputil_decode_meter_mod(oh, &mm, &bands); | |
5888 | if (error) { | |
5889 | goto exit_free_bands; | |
5890 | } | |
5891 | ||
5892 | meter_id = mm.meter.meter_id; | |
5893 | ||
5894 | if (mm.command != OFPMC13_DELETE) { | |
5895 | /* Fails also when meters are not implemented by the provider. */ | |
b31e8700 | 5896 | if (meter_id == 0 || meter_id > OFPM13_MAX) { |
9cae45dc JR |
5897 | error = OFPERR_OFPMMFC_INVALID_METER; |
5898 | goto exit_free_bands; | |
b31e8700 JR |
5899 | } else if (meter_id > ofproto->meter_features.max_meters) { |
5900 | error = OFPERR_OFPMMFC_OUT_OF_METERS; | |
5901 | goto exit_free_bands; | |
9cae45dc JR |
5902 | } |
5903 | if (mm.meter.n_bands > ofproto->meter_features.max_bands) { | |
5904 | error = OFPERR_OFPMMFC_OUT_OF_BANDS; | |
5905 | goto exit_free_bands; | |
5906 | } | |
5907 | } | |
5908 | ||
5909 | switch (mm.command) { | |
5910 | case OFPMC13_ADD: | |
5911 | error = handle_add_meter(ofproto, &mm); | |
5912 | break; | |
5913 | ||
5914 | case OFPMC13_MODIFY: | |
5915 | error = handle_modify_meter(ofproto, &mm); | |
5916 | break; | |
5917 | ||
5918 | case OFPMC13_DELETE: | |
baae3d02 | 5919 | error = handle_delete_meter(ofconn, &mm); |
9cae45dc JR |
5920 | break; |
5921 | ||
5922 | default: | |
5923 | error = OFPERR_OFPMMFC_BAD_COMMAND; | |
5924 | break; | |
5925 | } | |
5926 | ||
5927 | exit_free_bands: | |
5928 | ofpbuf_uninit(&bands); | |
5929 | return error; | |
5930 | } | |
5931 | ||
5932 | static enum ofperr | |
5933 | handle_meter_features_request(struct ofconn *ofconn, | |
5934 | const struct ofp_header *request) | |
5935 | { | |
5936 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
5937 | struct ofputil_meter_features features; | |
5938 | struct ofpbuf *b; | |
5939 | ||
5940 | if (ofproto->ofproto_class->meter_get_features) { | |
5941 | ofproto->ofproto_class->meter_get_features(ofproto, &features); | |
5942 | } else { | |
5943 | memset(&features, 0, sizeof features); | |
5944 | } | |
5945 | b = ofputil_encode_meter_features_reply(&features, request); | |
5946 | ||
5947 | ofconn_send_reply(ofconn, b); | |
5948 | return 0; | |
5949 | } | |
5950 | ||
5951 | static enum ofperr | |
5952 | handle_meter_request(struct ofconn *ofconn, const struct ofp_header *request, | |
5953 | enum ofptype type) | |
5954 | { | |
5955 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
ca6ba700 | 5956 | struct ovs_list replies; |
9cae45dc JR |
5957 | uint64_t bands_stub[256 / 8]; |
5958 | struct ofpbuf bands; | |
5959 | uint32_t meter_id, first, last; | |
5960 | ||
5961 | ofputil_decode_meter_request(request, &meter_id); | |
5962 | ||
5963 | if (meter_id == OFPM13_ALL) { | |
5964 | first = 1; | |
5965 | last = ofproto->meter_features.max_meters; | |
5966 | } else { | |
5967 | if (!meter_id || meter_id > ofproto->meter_features.max_meters || | |
5968 | !ofproto->meters[meter_id]) { | |
5969 | return OFPERR_OFPMMFC_UNKNOWN_METER; | |
5970 | } | |
5971 | first = last = meter_id; | |
5972 | } | |
5973 | ||
5974 | ofpbuf_use_stub(&bands, bands_stub, sizeof bands_stub); | |
5975 | ofpmp_init(&replies, request); | |
5976 | ||
5977 | for (meter_id = first; meter_id <= last; ++meter_id) { | |
5978 | struct meter *meter = ofproto->meters[meter_id]; | |
5979 | if (!meter) { | |
5980 | continue; /* Skip non-existing meters. */ | |
5981 | } | |
261bd854 | 5982 | if (type == OFPTYPE_METER_STATS_REQUEST) { |
9cae45dc JR |
5983 | struct ofputil_meter_stats stats; |
5984 | ||
5985 | stats.meter_id = meter_id; | |
5986 | ||
5987 | /* Provider sets the packet and byte counts, we do the rest. */ | |
5988 | stats.flow_count = list_size(&meter->rules); | |
5989 | calc_duration(meter->created, time_msec(), | |
5990 | &stats.duration_sec, &stats.duration_nsec); | |
5991 | stats.n_bands = meter->n_bands; | |
5992 | ofpbuf_clear(&bands); | |
5993 | stats.bands | |
5994 | = ofpbuf_put_uninit(&bands, | |
5995 | meter->n_bands * sizeof *stats.bands); | |
5996 | ||
5997 | if (!ofproto->ofproto_class->meter_get(ofproto, | |
5998 | meter->provider_meter_id, | |
5999 | &stats)) { | |
6000 | ofputil_append_meter_stats(&replies, &stats); | |
6001 | } | |
6002 | } else { /* type == OFPTYPE_METER_CONFIG_REQUEST */ | |
6003 | struct ofputil_meter_config config; | |
6004 | ||
6005 | config.meter_id = meter_id; | |
6006 | config.flags = meter->flags; | |
6007 | config.n_bands = meter->n_bands; | |
6008 | config.bands = meter->bands; | |
6009 | ofputil_append_meter_config(&replies, &config); | |
6010 | } | |
6011 | } | |
6012 | ||
6013 | ofconn_send_replies(ofconn, &replies); | |
6014 | ofpbuf_uninit(&bands); | |
6015 | return 0; | |
6016 | } | |
6017 | ||
3fc3b679 AZ |
6018 | static bool |
6019 | ofproto_group_lookup__(const struct ofproto *ofproto, uint32_t group_id, | |
6020 | struct ofgroup **group) | |
6021 | OVS_REQ_RDLOCK(ofproto->groups_rwlock) | |
7395c052 | 6022 | { |
7395c052 NZ |
6023 | HMAP_FOR_EACH_IN_BUCKET (*group, hmap_node, |
6024 | hash_int(group_id, 0), &ofproto->groups) { | |
6025 | if ((*group)->group_id == group_id) { | |
7395c052 NZ |
6026 | return true; |
6027 | } | |
6028 | } | |
3fc3b679 | 6029 | |
7395c052 NZ |
6030 | return false; |
6031 | } | |
6032 | ||
3fc3b679 AZ |
6033 | /* If the group exists, this function increments the groups's reference count. |
6034 | * | |
6035 | * Make sure to call ofproto_group_unref() after no longer needing to maintain | |
6036 | * a reference to the group. */ | |
6037 | bool | |
6038 | ofproto_group_lookup(const struct ofproto *ofproto, uint32_t group_id, | |
6039 | struct ofgroup **group) | |
7395c052 | 6040 | { |
3fc3b679 AZ |
6041 | bool found; |
6042 | ||
6043 | ovs_rwlock_rdlock(&ofproto->groups_rwlock); | |
6044 | found = ofproto_group_lookup__(ofproto, group_id, group); | |
6045 | if (found) { | |
6046 | ofproto_group_ref(*group); | |
7395c052 | 6047 | } |
3fc3b679 AZ |
6048 | ovs_rwlock_unlock(&ofproto->groups_rwlock); |
6049 | return found; | |
7395c052 NZ |
6050 | } |
6051 | ||
6052 | static bool | |
7e9f8266 | 6053 | ofproto_group_exists__(const struct ofproto *ofproto, uint32_t group_id) |
7395c052 NZ |
6054 | OVS_REQ_RDLOCK(ofproto->groups_rwlock) |
6055 | { | |
6056 | struct ofgroup *grp; | |
6057 | ||
6058 | HMAP_FOR_EACH_IN_BUCKET (grp, hmap_node, | |
6059 | hash_int(group_id, 0), &ofproto->groups) { | |
6060 | if (grp->group_id == group_id) { | |
6061 | return true; | |
6062 | } | |
6063 | } | |
6064 | return false; | |
6065 | } | |
6066 | ||
7e9f8266 BP |
6067 | static bool |
6068 | ofproto_group_exists(const struct ofproto *ofproto, uint32_t group_id) | |
6069 | OVS_EXCLUDED(ofproto->groups_rwlock) | |
6070 | { | |
6071 | bool exists; | |
6072 | ||
6073 | ovs_rwlock_rdlock(&ofproto->groups_rwlock); | |
6074 | exists = ofproto_group_exists__(ofproto, group_id); | |
6075 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
6076 | ||
6077 | return exists; | |
6078 | } | |
6079 | ||
732feb93 SH |
6080 | static uint32_t |
6081 | group_get_ref_count(struct ofgroup *group) | |
6082 | OVS_EXCLUDED(ofproto_mutex) | |
6083 | { | |
eaf004bd | 6084 | struct ofproto *ofproto = CONST_CAST(struct ofproto *, group->ofproto); |
732feb93 SH |
6085 | struct rule_criteria criteria; |
6086 | struct rule_collection rules; | |
6087 | struct match match; | |
6088 | enum ofperr error; | |
6089 | uint32_t count; | |
6090 | ||
6091 | match_init_catchall(&match); | |
2b7b1427 JR |
6092 | rule_criteria_init(&criteria, 0xff, &match, 0, CLS_MAX_VERSION, htonll(0), |
6093 | htonll(0), OFPP_ANY, group->group_id); | |
732feb93 SH |
6094 | ovs_mutex_lock(&ofproto_mutex); |
6095 | error = collect_rules_loose(ofproto, &criteria, &rules); | |
6096 | ovs_mutex_unlock(&ofproto_mutex); | |
6097 | rule_criteria_destroy(&criteria); | |
6098 | ||
6099 | count = !error && rules.n < UINT32_MAX ? rules.n : UINT32_MAX; | |
6100 | ||
6101 | rule_collection_destroy(&rules); | |
6102 | return count; | |
6103 | } | |
6104 | ||
7395c052 | 6105 | static void |
ca6ba700 | 6106 | append_group_stats(struct ofgroup *group, struct ovs_list *replies) |
7395c052 NZ |
6107 | { |
6108 | struct ofputil_group_stats ogs; | |
eaf004bd | 6109 | const struct ofproto *ofproto = group->ofproto; |
7395c052 NZ |
6110 | long long int now = time_msec(); |
6111 | int error; | |
6112 | ||
646b2a9c SH |
6113 | ogs.bucket_stats = xmalloc(group->n_buckets * sizeof *ogs.bucket_stats); |
6114 | ||
732feb93 SH |
6115 | /* Provider sets the packet and byte counts, we do the rest. */ |
6116 | ogs.ref_count = group_get_ref_count(group); | |
6117 | ogs.n_buckets = group->n_buckets; | |
6118 | ||
7395c052 NZ |
6119 | error = (ofproto->ofproto_class->group_get_stats |
6120 | ? ofproto->ofproto_class->group_get_stats(group, &ogs) | |
6121 | : EOPNOTSUPP); | |
6122 | if (error) { | |
7395c052 NZ |
6123 | ogs.packet_count = UINT64_MAX; |
6124 | ogs.byte_count = UINT64_MAX; | |
7395c052 NZ |
6125 | memset(ogs.bucket_stats, 0xff, |
6126 | ogs.n_buckets * sizeof *ogs.bucket_stats); | |
6127 | } | |
6128 | ||
6129 | ogs.group_id = group->group_id; | |
6130 | calc_duration(group->created, now, &ogs.duration_sec, &ogs.duration_nsec); | |
6131 | ||
6132 | ofputil_append_group_stats(replies, &ogs); | |
646b2a9c SH |
6133 | |
6134 | free(ogs.bucket_stats); | |
7395c052 NZ |
6135 | } |
6136 | ||
19187a71 BP |
6137 | static void |
6138 | handle_group_request(struct ofconn *ofconn, | |
6139 | const struct ofp_header *request, uint32_t group_id, | |
ca6ba700 | 6140 | void (*cb)(struct ofgroup *, struct ovs_list *replies)) |
7395c052 NZ |
6141 | { |
6142 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
7395c052 | 6143 | struct ofgroup *group; |
ca6ba700 | 6144 | struct ovs_list replies; |
7395c052 NZ |
6145 | |
6146 | ofpmp_init(&replies, request); | |
7395c052 NZ |
6147 | if (group_id == OFPG_ALL) { |
6148 | ovs_rwlock_rdlock(&ofproto->groups_rwlock); | |
6149 | HMAP_FOR_EACH (group, hmap_node, &ofproto->groups) { | |
19187a71 | 6150 | cb(group, &replies); |
7395c052 NZ |
6151 | } |
6152 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
6153 | } else { | |
6154 | if (ofproto_group_lookup(ofproto, group_id, &group)) { | |
19187a71 | 6155 | cb(group, &replies); |
809c7548 | 6156 | ofproto_group_unref(group); |
7395c052 NZ |
6157 | } |
6158 | } | |
7395c052 | 6159 | ofconn_send_replies(ofconn, &replies); |
7395c052 NZ |
6160 | } |
6161 | ||
6162 | static enum ofperr | |
19187a71 BP |
6163 | handle_group_stats_request(struct ofconn *ofconn, |
6164 | const struct ofp_header *request) | |
7395c052 | 6165 | { |
19187a71 BP |
6166 | uint32_t group_id; |
6167 | enum ofperr error; | |
7395c052 | 6168 | |
19187a71 BP |
6169 | error = ofputil_decode_group_stats_request(request, &group_id); |
6170 | if (error) { | |
6171 | return error; | |
7395c052 | 6172 | } |
7395c052 | 6173 | |
19187a71 BP |
6174 | handle_group_request(ofconn, request, group_id, append_group_stats); |
6175 | return 0; | |
6176 | } | |
6177 | ||
6178 | static void | |
ca6ba700 | 6179 | append_group_desc(struct ofgroup *group, struct ovs_list *replies) |
19187a71 BP |
6180 | { |
6181 | struct ofputil_group_desc gds; | |
7395c052 | 6182 | |
19187a71 BP |
6183 | gds.group_id = group->group_id; |
6184 | gds.type = group->type; | |
53eb84a5 SH |
6185 | gds.props = group->props; |
6186 | ||
19187a71 BP |
6187 | ofputil_append_group_desc_reply(&gds, &group->buckets, replies); |
6188 | } | |
6189 | ||
6190 | static enum ofperr | |
6191 | handle_group_desc_stats_request(struct ofconn *ofconn, | |
6192 | const struct ofp_header *request) | |
6193 | { | |
6194 | handle_group_request(ofconn, request, | |
6195 | ofputil_decode_group_desc_request(request), | |
6196 | append_group_desc); | |
7395c052 NZ |
6197 | return 0; |
6198 | } | |
6199 | ||
6200 | static enum ofperr | |
6201 | handle_group_features_stats_request(struct ofconn *ofconn, | |
6202 | const struct ofp_header *request) | |
6203 | { | |
6204 | struct ofproto *p = ofconn_get_ofproto(ofconn); | |
6205 | struct ofpbuf *msg; | |
6206 | ||
6207 | msg = ofputil_encode_group_features_reply(&p->ogf, request); | |
6208 | if (msg) { | |
6209 | ofconn_send_reply(ofconn, msg); | |
6210 | } | |
6211 | ||
6212 | return 0; | |
6213 | } | |
6214 | ||
e8f9a7bb VG |
6215 | static enum ofperr |
6216 | handle_queue_get_config_request(struct ofconn *ofconn, | |
6217 | const struct ofp_header *oh) | |
6218 | { | |
6219 | struct ofproto *p = ofconn_get_ofproto(ofconn); | |
6220 | struct netdev_queue_dump queue_dump; | |
6221 | struct ofport *ofport; | |
6222 | unsigned int queue_id; | |
6223 | struct ofpbuf *reply; | |
6224 | struct smap details; | |
6225 | ofp_port_t request; | |
6226 | enum ofperr error; | |
6227 | ||
6228 | error = ofputil_decode_queue_get_config_request(oh, &request); | |
6229 | if (error) { | |
6230 | return error; | |
6231 | } | |
6232 | ||
6233 | ofport = ofproto_get_port(p, request); | |
6234 | if (!ofport) { | |
6235 | return OFPERR_OFPQOFC_BAD_PORT; | |
6236 | } | |
6237 | ||
6238 | reply = ofputil_encode_queue_get_config_reply(oh); | |
6239 | ||
6240 | smap_init(&details); | |
6241 | NETDEV_QUEUE_FOR_EACH (&queue_id, &details, &queue_dump, ofport->netdev) { | |
6242 | struct ofputil_queue_config queue; | |
6243 | ||
6244 | /* None of the existing queues have compatible properties, so we | |
6245 | * hard-code omitting min_rate and max_rate. */ | |
6246 | queue.queue_id = queue_id; | |
6247 | queue.min_rate = UINT16_MAX; | |
6248 | queue.max_rate = UINT16_MAX; | |
6249 | ofputil_append_queue_get_config_reply(reply, &queue); | |
6250 | } | |
6251 | smap_destroy(&details); | |
6252 | ||
6253 | ofconn_send_reply(ofconn, reply); | |
6254 | ||
6255 | return 0; | |
6256 | } | |
6257 | ||
809c7548 RW |
6258 | static enum ofperr |
6259 | init_group(struct ofproto *ofproto, struct ofputil_group_mod *gm, | |
6260 | struct ofgroup **ofgroup) | |
6261 | { | |
6262 | enum ofperr error; | |
eaf004bd | 6263 | const long long int now = time_msec(); |
809c7548 RW |
6264 | |
6265 | if (gm->group_id > OFPG_MAX) { | |
6266 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
6267 | } | |
6268 | if (gm->type > OFPGT11_FF) { | |
6269 | return OFPERR_OFPGMFC_BAD_TYPE; | |
6270 | } | |
6271 | ||
6272 | *ofgroup = ofproto->ofproto_class->group_alloc(); | |
6273 | if (!*ofgroup) { | |
6274 | VLOG_WARN_RL(&rl, "%s: failed to allocate group", ofproto->name); | |
6275 | return OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
6276 | } | |
6277 | ||
eaf004bd AZ |
6278 | (*ofgroup)->ofproto = ofproto; |
6279 | *CONST_CAST(uint32_t *, &((*ofgroup)->group_id)) = gm->group_id; | |
6280 | *CONST_CAST(enum ofp11_group_type *, &(*ofgroup)->type) = gm->type; | |
6281 | *CONST_CAST(long long int *, &((*ofgroup)->created)) = now; | |
6282 | *CONST_CAST(long long int *, &((*ofgroup)->modified)) = now; | |
809c7548 RW |
6283 | ovs_refcount_init(&(*ofgroup)->ref_count); |
6284 | ||
6285 | list_move(&(*ofgroup)->buckets, &gm->buckets); | |
eaf004bd AZ |
6286 | *CONST_CAST(uint32_t *, &(*ofgroup)->n_buckets) = |
6287 | list_size(&(*ofgroup)->buckets); | |
809c7548 | 6288 | |
bc65c25a SH |
6289 | memcpy(CONST_CAST(struct ofputil_group_props *, &(*ofgroup)->props), |
6290 | &gm->props, sizeof (struct ofputil_group_props)); | |
6291 | ||
809c7548 RW |
6292 | /* Construct called BEFORE any locks are held. */ |
6293 | error = ofproto->ofproto_class->group_construct(*ofgroup); | |
6294 | if (error) { | |
6295 | ofputil_bucket_list_destroy(&(*ofgroup)->buckets); | |
6296 | ofproto->ofproto_class->group_dealloc(*ofgroup); | |
6297 | } | |
6298 | return error; | |
6299 | } | |
6300 | ||
6c5b90ce BP |
6301 | /* Implements the OFPGC11_ADD operation specified by 'gm', adding a group to |
6302 | * 'ofproto''s group table. Returns 0 on success or an OpenFlow error code on | |
6303 | * failure. */ | |
7395c052 NZ |
6304 | static enum ofperr |
6305 | add_group(struct ofproto *ofproto, struct ofputil_group_mod *gm) | |
6306 | { | |
6307 | struct ofgroup *ofgroup; | |
6308 | enum ofperr error; | |
6309 | ||
7395c052 | 6310 | /* Allocate new group and initialize it. */ |
809c7548 | 6311 | error = init_group(ofproto, gm, &ofgroup); |
7395c052 | 6312 | if (error) { |
809c7548 | 6313 | return error; |
7395c052 NZ |
6314 | } |
6315 | ||
6316 | /* We wrlock as late as possible to minimize the time we jam any other | |
6317 | * threads: No visible state changes before acquiring the lock. */ | |
6318 | ovs_rwlock_wrlock(&ofproto->groups_rwlock); | |
6319 | ||
6320 | if (ofproto->n_groups[gm->type] >= ofproto->ogf.max_groups[gm->type]) { | |
6321 | error = OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
6322 | goto unlock_out; | |
6323 | } | |
6324 | ||
7e9f8266 | 6325 | if (ofproto_group_exists__(ofproto, gm->group_id)) { |
7395c052 NZ |
6326 | error = OFPERR_OFPGMFC_GROUP_EXISTS; |
6327 | goto unlock_out; | |
6328 | } | |
6329 | ||
6330 | if (!error) { | |
6331 | /* Insert new group. */ | |
6332 | hmap_insert(&ofproto->groups, &ofgroup->hmap_node, | |
6333 | hash_int(ofgroup->group_id, 0)); | |
6334 | ofproto->n_groups[ofgroup->type]++; | |
6335 | ||
6336 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
6337 | return error; | |
6338 | } | |
6339 | ||
6340 | unlock_out: | |
6341 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
6342 | ofproto->ofproto_class->group_destruct(ofgroup); | |
7395c052 NZ |
6343 | ofputil_bucket_list_destroy(&ofgroup->buckets); |
6344 | ofproto->ofproto_class->group_dealloc(ofgroup); | |
6345 | ||
6346 | return error; | |
6347 | } | |
6348 | ||
fce4730c SH |
6349 | /* Adds all of the buckets from 'ofgroup' to 'new_ofgroup'. The buckets |
6350 | * already in 'new_ofgroup' will be placed just after the (copy of the) bucket | |
6351 | * in 'ofgroup' with bucket ID 'command_bucket_id'. Special | |
6352 | * 'command_bucket_id' values OFPG15_BUCKET_FIRST and OFPG15_BUCKET_LAST are | |
6353 | * also honored. */ | |
6354 | static enum ofperr | |
6355 | copy_buckets_for_insert_bucket(const struct ofgroup *ofgroup, | |
6356 | struct ofgroup *new_ofgroup, | |
6357 | uint32_t command_bucket_id) | |
6358 | { | |
6359 | struct ofputil_bucket *last = NULL; | |
6360 | ||
6361 | if (command_bucket_id <= OFPG15_BUCKET_MAX) { | |
6362 | /* Check here to ensure that a bucket corresponding to | |
6363 | * command_bucket_id exists in the old bucket list. | |
6364 | * | |
6365 | * The subsequent search of below of new_ofgroup covers | |
6366 | * both buckets in the old bucket list and buckets added | |
6367 | * by the insert buckets group mod message this function processes. */ | |
6368 | if (!ofputil_bucket_find(&ofgroup->buckets, command_bucket_id)) { | |
6369 | return OFPERR_OFPGMFC_UNKNOWN_BUCKET; | |
6370 | } | |
6371 | ||
6372 | if (!list_is_empty(&new_ofgroup->buckets)) { | |
6373 | last = ofputil_bucket_list_back(&new_ofgroup->buckets); | |
6374 | } | |
6375 | } | |
6376 | ||
6377 | ofputil_bucket_clone_list(&new_ofgroup->buckets, &ofgroup->buckets, NULL); | |
6378 | ||
6379 | if (ofputil_bucket_check_duplicate_id(&ofgroup->buckets)) { | |
6380 | VLOG_WARN_RL(&rl, "Duplicate bucket id"); | |
6381 | return OFPERR_OFPGMFC_BUCKET_EXISTS; | |
6382 | } | |
6383 | ||
6384 | /* Rearrange list according to command_bucket_id */ | |
6385 | if (command_bucket_id == OFPG15_BUCKET_LAST) { | |
6386 | struct ofputil_bucket *new_first; | |
6387 | const struct ofputil_bucket *first; | |
6388 | ||
6389 | first = ofputil_bucket_list_front(&ofgroup->buckets); | |
6390 | new_first = ofputil_bucket_find(&new_ofgroup->buckets, | |
6391 | first->bucket_id); | |
6392 | ||
6393 | list_splice(new_ofgroup->buckets.next, &new_first->list_node, | |
6394 | &new_ofgroup->buckets); | |
6395 | } else if (command_bucket_id <= OFPG15_BUCKET_MAX && last) { | |
6396 | struct ofputil_bucket *after; | |
6397 | ||
6398 | /* Presence of bucket is checked above so after should never be NULL */ | |
6399 | after = ofputil_bucket_find(&new_ofgroup->buckets, command_bucket_id); | |
6400 | ||
6401 | list_splice(after->list_node.next, new_ofgroup->buckets.next, | |
6402 | last->list_node.next); | |
6403 | } | |
6404 | ||
6405 | return 0; | |
6406 | } | |
6407 | ||
6408 | /* Appends all of the a copy of all the buckets from 'ofgroup' to 'new_ofgroup' | |
6409 | * with the exception of the bucket whose bucket id is 'command_bucket_id'. | |
6410 | * Special 'command_bucket_id' values OFPG15_BUCKET_FIRST, OFPG15_BUCKET_LAST | |
6411 | * and OFPG15_BUCKET_ALL are also honored. */ | |
6412 | static enum ofperr | |
6413 | copy_buckets_for_remove_bucket(const struct ofgroup *ofgroup, | |
6414 | struct ofgroup *new_ofgroup, | |
6415 | uint32_t command_bucket_id) | |
6416 | { | |
6417 | const struct ofputil_bucket *skip = NULL; | |
6418 | ||
6419 | if (command_bucket_id == OFPG15_BUCKET_ALL) { | |
6420 | return 0; | |
6421 | } | |
6422 | ||
6423 | if (command_bucket_id == OFPG15_BUCKET_FIRST) { | |
6424 | if (!list_is_empty(&ofgroup->buckets)) { | |
6425 | skip = ofputil_bucket_list_front(&ofgroup->buckets); | |
6426 | } | |
6427 | } else if (command_bucket_id == OFPG15_BUCKET_LAST) { | |
6428 | if (!list_is_empty(&ofgroup->buckets)) { | |
6429 | skip = ofputil_bucket_list_back(&ofgroup->buckets); | |
6430 | } | |
6431 | } else { | |
6432 | skip = ofputil_bucket_find(&ofgroup->buckets, command_bucket_id); | |
6433 | if (!skip) { | |
6434 | return OFPERR_OFPGMFC_UNKNOWN_BUCKET; | |
6435 | } | |
6436 | } | |
6437 | ||
6438 | ofputil_bucket_clone_list(&new_ofgroup->buckets, &ofgroup->buckets, skip); | |
6439 | ||
6440 | return 0; | |
6441 | } | |
6442 | ||
6443 | /* Implements OFPGC11_MODIFY, OFPGC15_INSERT_BUCKET and | |
6444 | * OFPGC15_REMOVE_BUCKET. Returns 0 on success or an OpenFlow error code | |
6c5b90ce | 6445 | * on failure. |
7395c052 | 6446 | * |
809c7548 RW |
6447 | * Note that the group is re-created and then replaces the old group in |
6448 | * ofproto's ofgroup hash map. Thus, the group is never altered while users of | |
6c5b90ce | 6449 | * the xlate module hold a pointer to the group. */ |
7395c052 NZ |
6450 | static enum ofperr |
6451 | modify_group(struct ofproto *ofproto, struct ofputil_group_mod *gm) | |
6452 | { | |
809c7548 | 6453 | struct ofgroup *ofgroup, *new_ofgroup, *retiring; |
7395c052 NZ |
6454 | enum ofperr error; |
6455 | ||
809c7548 RW |
6456 | error = init_group(ofproto, gm, &new_ofgroup); |
6457 | if (error) { | |
6458 | return error; | |
7395c052 NZ |
6459 | } |
6460 | ||
809c7548 | 6461 | retiring = new_ofgroup; |
7395c052 | 6462 | |
3fc3b679 AZ |
6463 | ovs_rwlock_wrlock(&ofproto->groups_rwlock); |
6464 | if (!ofproto_group_lookup__(ofproto, gm->group_id, &ofgroup)) { | |
7395c052 | 6465 | error = OFPERR_OFPGMFC_UNKNOWN_GROUP; |
809c7548 | 6466 | goto out; |
7395c052 | 6467 | } |
809c7548 RW |
6468 | |
6469 | /* Ofproto's group write lock is held now. */ | |
7395c052 NZ |
6470 | if (ofgroup->type != gm->type |
6471 | && ofproto->n_groups[gm->type] >= ofproto->ogf.max_groups[gm->type]) { | |
6472 | error = OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
809c7548 | 6473 | goto out; |
7395c052 NZ |
6474 | } |
6475 | ||
fce4730c SH |
6476 | /* Manipulate bucket list for bucket commands */ |
6477 | if (gm->command == OFPGC15_INSERT_BUCKET) { | |
6478 | error = copy_buckets_for_insert_bucket(ofgroup, new_ofgroup, | |
6479 | gm->command_bucket_id); | |
6480 | } else if (gm->command == OFPGC15_REMOVE_BUCKET) { | |
6481 | error = copy_buckets_for_remove_bucket(ofgroup, new_ofgroup, | |
6482 | gm->command_bucket_id); | |
6483 | } | |
6484 | if (error) { | |
6485 | goto out; | |
6486 | } | |
6487 | ||
809c7548 | 6488 | /* The group creation time does not change during modification. */ |
eaf004bd AZ |
6489 | *CONST_CAST(long long int *, &(new_ofgroup->created)) = ofgroup->created; |
6490 | *CONST_CAST(long long int *, &(new_ofgroup->modified)) = time_msec(); | |
7395c052 | 6491 | |
809c7548 RW |
6492 | error = ofproto->ofproto_class->group_modify(new_ofgroup); |
6493 | if (error) { | |
6494 | goto out; | |
6495 | } | |
7395c052 | 6496 | |
809c7548 RW |
6497 | retiring = ofgroup; |
6498 | /* Replace ofgroup in ofproto's groups hash map with new_ofgroup. */ | |
6499 | hmap_remove(&ofproto->groups, &ofgroup->hmap_node); | |
6500 | hmap_insert(&ofproto->groups, &new_ofgroup->hmap_node, | |
6501 | hash_int(new_ofgroup->group_id, 0)); | |
6502 | if (ofgroup->type != new_ofgroup->type) { | |
6503 | ofproto->n_groups[ofgroup->type]--; | |
6504 | ofproto->n_groups[new_ofgroup->type]++; | |
7395c052 NZ |
6505 | } |
6506 | ||
809c7548 RW |
6507 | out: |
6508 | ofproto_group_unref(retiring); | |
7395c052 | 6509 | ovs_rwlock_unlock(&ofproto->groups_rwlock); |
7395c052 NZ |
6510 | return error; |
6511 | } | |
6512 | ||
6513 | static void | |
6514 | delete_group__(struct ofproto *ofproto, struct ofgroup *ofgroup) | |
6515 | OVS_RELEASES(ofproto->groups_rwlock) | |
6516 | { | |
276f6518 | 6517 | struct match match; |
8be00367 | 6518 | struct ofproto_flow_mod ofm; |
276f6518 SH |
6519 | |
6520 | /* Delete all flow entries containing this group in a group action */ | |
6521 | match_init_catchall(&match); | |
8be00367 JR |
6522 | flow_mod_init(&ofm.fm, &match, 0, NULL, 0, OFPFC_DELETE); |
6523 | ofm.fm.delete_reason = OFPRR_GROUP_DELETE; | |
6524 | ofm.fm.out_group = ofgroup->group_id; | |
6525 | handle_flow_mod__(ofproto, &ofm, NULL); | |
276f6518 | 6526 | |
7395c052 NZ |
6527 | hmap_remove(&ofproto->groups, &ofgroup->hmap_node); |
6528 | /* No-one can find this group any more. */ | |
6529 | ofproto->n_groups[ofgroup->type]--; | |
6530 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
809c7548 | 6531 | ofproto_group_unref(ofgroup); |
7395c052 NZ |
6532 | } |
6533 | ||
6c5b90ce | 6534 | /* Implements OFPGC11_DELETE. */ |
7395c052 NZ |
6535 | static void |
6536 | delete_group(struct ofproto *ofproto, uint32_t group_id) | |
6537 | { | |
6538 | struct ofgroup *ofgroup; | |
6539 | ||
6540 | ovs_rwlock_wrlock(&ofproto->groups_rwlock); | |
6541 | if (group_id == OFPG_ALL) { | |
6542 | for (;;) { | |
6543 | struct hmap_node *node = hmap_first(&ofproto->groups); | |
6544 | if (!node) { | |
6545 | break; | |
6546 | } | |
6547 | ofgroup = CONTAINER_OF(node, struct ofgroup, hmap_node); | |
6548 | delete_group__(ofproto, ofgroup); | |
6549 | /* Lock for each node separately, so that we will not jam the | |
6550 | * other threads for too long time. */ | |
6551 | ovs_rwlock_wrlock(&ofproto->groups_rwlock); | |
6552 | } | |
6553 | } else { | |
6554 | HMAP_FOR_EACH_IN_BUCKET (ofgroup, hmap_node, | |
6555 | hash_int(group_id, 0), &ofproto->groups) { | |
6556 | if (ofgroup->group_id == group_id) { | |
6557 | delete_group__(ofproto, ofgroup); | |
6558 | return; | |
6559 | } | |
6560 | } | |
6561 | } | |
6562 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
6563 | } | |
6564 | ||
daab0ae6 BP |
6565 | /* Delete all groups from 'ofproto'. |
6566 | * | |
6567 | * This is intended for use within an ofproto provider's 'destruct' | |
6568 | * function. */ | |
6569 | void | |
6570 | ofproto_group_delete_all(struct ofproto *ofproto) | |
6571 | { | |
6572 | delete_group(ofproto, OFPG_ALL); | |
6573 | } | |
6574 | ||
7395c052 NZ |
6575 | static enum ofperr |
6576 | handle_group_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
6577 | { | |
6578 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
6579 | struct ofputil_group_mod gm; | |
6580 | enum ofperr error; | |
6581 | ||
6582 | error = reject_slave_controller(ofconn); | |
6583 | if (error) { | |
6584 | return error; | |
6585 | } | |
6586 | ||
6587 | error = ofputil_decode_group_mod(oh, &gm); | |
6588 | if (error) { | |
6589 | return error; | |
6590 | } | |
6591 | ||
6592 | switch (gm.command) { | |
6593 | case OFPGC11_ADD: | |
6594 | return add_group(ofproto, &gm); | |
6595 | ||
6596 | case OFPGC11_MODIFY: | |
6597 | return modify_group(ofproto, &gm); | |
6598 | ||
6599 | case OFPGC11_DELETE: | |
6600 | delete_group(ofproto, gm.group_id); | |
6601 | return 0; | |
6602 | ||
fce4730c SH |
6603 | case OFPGC15_INSERT_BUCKET: |
6604 | return modify_group(ofproto, &gm); | |
6605 | ||
6606 | case OFPGC15_REMOVE_BUCKET: | |
6607 | return modify_group(ofproto, &gm); | |
6608 | ||
7395c052 NZ |
6609 | default: |
6610 | if (gm.command > OFPGC11_DELETE) { | |
6611 | VLOG_WARN_RL(&rl, "%s: Invalid group_mod command type %d", | |
6612 | ofproto->name, gm.command); | |
6613 | } | |
6614 | return OFPERR_OFPGMFC_BAD_COMMAND; | |
6615 | } | |
6616 | } | |
6617 | ||
3c1bb396 BP |
6618 | enum ofputil_table_miss |
6619 | ofproto_table_get_miss_config(const struct ofproto *ofproto, uint8_t table_id) | |
6d328fa2 | 6620 | { |
82c22d34 BP |
6621 | enum ofputil_table_miss miss; |
6622 | ||
6623 | atomic_read_relaxed(&ofproto->tables[table_id].miss_config, &miss); | |
6624 | return miss; | |
6625 | } | |
6626 | ||
6627 | static void | |
6628 | table_mod__(struct oftable *oftable, | |
6629 | enum ofputil_table_miss miss, enum ofputil_table_eviction eviction) | |
6630 | { | |
6631 | if (miss == OFPUTIL_TABLE_MISS_DEFAULT) { | |
6632 | /* This is how an OFPT_TABLE_MOD decodes if it doesn't specify any | |
6633 | * table-miss configuration (because the protocol used doesn't have | |
6634 | * such a concept), so there's nothing to do. */ | |
6635 | } else { | |
6636 | atomic_store_relaxed(&oftable->miss_config, miss); | |
6637 | } | |
6638 | ||
6639 | unsigned int new_eviction = oftable->eviction; | |
6640 | if (eviction == OFPUTIL_TABLE_EVICTION_ON) { | |
6641 | new_eviction |= EVICTION_OPENFLOW; | |
6642 | } else if (eviction == OFPUTIL_TABLE_EVICTION_OFF) { | |
6643 | new_eviction &= ~EVICTION_OPENFLOW; | |
6644 | } | |
afcea9ea | 6645 | |
82c22d34 BP |
6646 | if (new_eviction != oftable->eviction) { |
6647 | ovs_mutex_lock(&ofproto_mutex); | |
6648 | oftable_configure_eviction(oftable, new_eviction, | |
6649 | oftable->eviction_fields, | |
6650 | oftable->n_eviction_fields); | |
6651 | ovs_mutex_unlock(&ofproto_mutex); | |
6652 | } | |
6d328fa2 SH |
6653 | } |
6654 | ||
67761761 SH |
6655 | static enum ofperr |
6656 | table_mod(struct ofproto *ofproto, const struct ofputil_table_mod *tm) | |
6657 | { | |
3c1bb396 | 6658 | if (!check_table_id(ofproto, tm->table_id)) { |
67761761 | 6659 | return OFPERR_OFPTMFC_BAD_TABLE; |
82c22d34 BP |
6660 | } |
6661 | ||
6662 | /* Don't allow the eviction flags to be changed (except to the only fixed | |
6663 | * value that OVS supports). OF1.4 says this is normal: "The | |
6664 | * OFPTMPT_EVICTION property usually cannot be modified using a | |
6665 | * OFP_TABLE_MOD request, because the eviction mechanism is switch | |
6666 | * defined". */ | |
6667 | if (tm->eviction_flags != UINT32_MAX | |
6668 | && tm->eviction_flags != OFPROTO_EVICTION_FLAGS) { | |
6669 | return OFPERR_OFPTMFC_BAD_CONFIG; | |
6670 | } | |
6671 | ||
6672 | if (tm->table_id == OFPTT_ALL) { | |
6673 | struct oftable *oftable; | |
6674 | OFPROTO_FOR_EACH_TABLE (oftable, ofproto) { | |
6675 | if (!(oftable->flags & (OFTABLE_HIDDEN | OFTABLE_READONLY))) { | |
6676 | table_mod__(oftable, tm->miss, tm->eviction); | |
3c1bb396 | 6677 | } |
3c1bb396 | 6678 | } |
82c22d34 BP |
6679 | } else { |
6680 | struct oftable *oftable = &ofproto->tables[tm->table_id]; | |
6681 | if (oftable->flags & OFTABLE_READONLY) { | |
6682 | return OFPERR_OFPTMFC_EPERM; | |
6683 | } | |
6684 | table_mod__(oftable, tm->miss, tm->eviction); | |
67761761 | 6685 | } |
82c22d34 | 6686 | |
67761761 SH |
6687 | return 0; |
6688 | } | |
6689 | ||
918f2b82 AZ |
6690 | static enum ofperr |
6691 | handle_table_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
6692 | { | |
67761761 | 6693 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
918f2b82 AZ |
6694 | struct ofputil_table_mod tm; |
6695 | enum ofperr error; | |
6696 | ||
6697 | error = reject_slave_controller(ofconn); | |
6698 | if (error) { | |
6699 | return error; | |
6700 | } | |
6701 | ||
6702 | error = ofputil_decode_table_mod(oh, &tm); | |
6703 | if (error) { | |
6704 | return error; | |
6705 | } | |
6706 | ||
67761761 | 6707 | return table_mod(ofproto, &tm); |
918f2b82 AZ |
6708 | } |
6709 | ||
777af88d | 6710 | static enum ofperr |
8be00367 | 6711 | ofproto_flow_mod_start(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
1f42be1c | 6712 | OVS_REQUIRES(ofproto_mutex) |
777af88d | 6713 | { |
8be00367 | 6714 | switch (ofm->fm.command) { |
1f42be1c | 6715 | case OFPFC_ADD: |
8be00367 JR |
6716 | return add_flow_start(ofproto, ofm); |
6717 | /* , &be->old_rules.stub[0], | |
6718 | &be->new_rules.stub[0]); */ | |
1f42be1c | 6719 | case OFPFC_MODIFY: |
8be00367 | 6720 | return modify_flows_start_loose(ofproto, ofm); |
1f42be1c | 6721 | case OFPFC_MODIFY_STRICT: |
8be00367 | 6722 | return modify_flow_start_strict(ofproto, ofm); |
1f42be1c | 6723 | case OFPFC_DELETE: |
8be00367 | 6724 | return delete_flows_start_loose(ofproto, ofm); |
1f42be1c JR |
6725 | |
6726 | case OFPFC_DELETE_STRICT: | |
8be00367 | 6727 | return delete_flow_start_strict(ofproto, ofm); |
1f42be1c JR |
6728 | } |
6729 | ||
6730 | return OFPERR_OFPFMFC_BAD_COMMAND; | |
6731 | } | |
6732 | ||
6733 | static void | |
8be00367 | 6734 | ofproto_flow_mod_revert(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
1f42be1c JR |
6735 | OVS_REQUIRES(ofproto_mutex) |
6736 | { | |
8be00367 | 6737 | switch (ofm->fm.command) { |
1f42be1c | 6738 | case OFPFC_ADD: |
8be00367 | 6739 | add_flow_revert(ofproto, ofm); |
1f42be1c JR |
6740 | break; |
6741 | ||
6742 | case OFPFC_MODIFY: | |
6743 | case OFPFC_MODIFY_STRICT: | |
8be00367 | 6744 | modify_flows_revert(ofproto, ofm); |
1f42be1c JR |
6745 | break; |
6746 | ||
6747 | case OFPFC_DELETE: | |
6748 | case OFPFC_DELETE_STRICT: | |
8be00367 | 6749 | delete_flows_revert(ofproto, ofm); |
1f42be1c JR |
6750 | break; |
6751 | ||
6752 | default: | |
6753 | break; | |
6754 | } | |
6755 | } | |
6756 | ||
6757 | static void | |
8be00367 JR |
6758 | ofproto_flow_mod_finish(struct ofproto *ofproto, |
6759 | struct ofproto_flow_mod *ofm, | |
6760 | const struct flow_mod_requester *req) | |
1f42be1c JR |
6761 | OVS_REQUIRES(ofproto_mutex) |
6762 | { | |
8be00367 | 6763 | switch (ofm->fm.command) { |
1f42be1c | 6764 | case OFPFC_ADD: |
8be00367 | 6765 | add_flow_finish(ofproto, ofm, req); |
1f42be1c JR |
6766 | break; |
6767 | ||
6768 | case OFPFC_MODIFY: | |
6769 | case OFPFC_MODIFY_STRICT: | |
8be00367 | 6770 | modify_flows_finish(ofproto, ofm, req); |
1f42be1c JR |
6771 | break; |
6772 | ||
6773 | case OFPFC_DELETE: | |
6774 | case OFPFC_DELETE_STRICT: | |
8be00367 | 6775 | delete_flows_finish(ofproto, ofm, req); |
1f42be1c JR |
6776 | break; |
6777 | ||
6778 | default: | |
6779 | break; | |
6780 | } | |
6781 | } | |
6782 | ||
39c94593 JR |
6783 | /* Commit phases (all while locking ofproto_mutex): |
6784 | * | |
6785 | * 1. Begin: Gather resources and make changes visible in the next version. | |
6786 | * - Mark affected rules for removal in the next version. | |
6787 | * - Create new replacement rules, make visible in the next | |
6788 | * version. | |
6789 | * - Do not send any events or notifications. | |
6790 | * | |
6791 | * 2. Revert: Fail if any errors are found. After this point no errors are | |
6792 | * possible. No visible changes were made, so rollback is minimal (remove | |
6793 | * added invisible rules, restore visibility of rules marked for removal). | |
6794 | * | |
1c38055d JR |
6795 | * 3. Finish: Make the changes visible for lookups. Insert replacement rules to |
6796 | * the ofproto provider. Remove replaced and deleted rules from ofproto data | |
6797 | * structures, and Schedule postponed removal of deleted rules from the | |
6798 | * classifier. Send notifications, buffered packets, etc. | |
39c94593 | 6799 | */ |
1f42be1c JR |
6800 | static enum ofperr |
6801 | do_bundle_commit(struct ofconn *ofconn, uint32_t id, uint16_t flags) | |
6802 | { | |
6803 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
8be00367 | 6804 | cls_version_t version = ofproto->tables_version + 1; |
1f42be1c JR |
6805 | struct ofp_bundle *bundle; |
6806 | struct ofp_bundle_entry *be; | |
777af88d | 6807 | enum ofperr error; |
1f42be1c JR |
6808 | |
6809 | bundle = ofconn_get_bundle(ofconn, id); | |
6810 | ||
6811 | if (!bundle) { | |
6812 | return OFPERR_OFPBFC_BAD_ID; | |
6813 | } | |
6814 | if (bundle->flags != flags) { | |
6815 | error = OFPERR_OFPBFC_BAD_FLAGS; | |
6816 | } else { | |
1c38055d JR |
6817 | bool prev_is_port_mod = false; |
6818 | ||
1f42be1c JR |
6819 | error = 0; |
6820 | ovs_mutex_lock(&ofproto_mutex); | |
39c94593 JR |
6821 | |
6822 | /* 1. Begin. */ | |
1f42be1c JR |
6823 | LIST_FOR_EACH (be, node, &bundle->msg_list) { |
6824 | if (be->type == OFPTYPE_PORT_MOD) { | |
1c38055d JR |
6825 | /* Our port mods are not atomic. */ |
6826 | if (flags & OFPBF_ATOMIC) { | |
6827 | error = OFPERR_OFPBFC_MSG_FAILED; | |
6828 | } else { | |
6829 | prev_is_port_mod = true; | |
8be00367 | 6830 | error = port_mod_start(ofconn, &be->opm.pm, &be->opm.port); |
1c38055d | 6831 | } |
1f42be1c | 6832 | } else if (be->type == OFPTYPE_FLOW_MOD) { |
1c38055d JR |
6833 | /* Flow mods between port mods are applied as a single |
6834 | * version, but the versions are published only after | |
6835 | * we know the commit is successful. */ | |
6836 | if (prev_is_port_mod) { | |
8be00367 | 6837 | ++version; |
1c38055d JR |
6838 | } |
6839 | prev_is_port_mod = false; | |
8be00367 JR |
6840 | /* Store the version in which the changes should take |
6841 | * effect. */ | |
6842 | be->ofm.version = version; | |
6843 | error = ofproto_flow_mod_start(ofproto, &be->ofm); | |
1f42be1c JR |
6844 | } else { |
6845 | OVS_NOT_REACHED(); | |
6846 | } | |
6847 | if (error) { | |
6848 | break; | |
6849 | } | |
6850 | } | |
1c38055d | 6851 | |
1f42be1c JR |
6852 | if (error) { |
6853 | /* Send error referring to the original message. */ | |
6854 | if (error) { | |
6855 | ofconn_send_error(ofconn, be->ofp_msg, error); | |
6856 | error = OFPERR_OFPBFC_MSG_FAILED; | |
6857 | } | |
6858 | ||
39c94593 | 6859 | /* 2. Revert. Undo all the changes made above. */ |
1f42be1c JR |
6860 | LIST_FOR_EACH_REVERSE_CONTINUE(be, node, &bundle->msg_list) { |
6861 | if (be->type == OFPTYPE_FLOW_MOD) { | |
8be00367 | 6862 | ofproto_flow_mod_revert(ofproto, &be->ofm); |
1f42be1c | 6863 | } |
1c38055d | 6864 | /* Nothing needs to be reverted for a port mod. */ |
1f42be1c JR |
6865 | } |
6866 | } else { | |
39c94593 | 6867 | /* 4. Finish. */ |
1f42be1c JR |
6868 | LIST_FOR_EACH (be, node, &bundle->msg_list) { |
6869 | if (be->type == OFPTYPE_FLOW_MOD) { | |
6870 | struct flow_mod_requester req = { ofconn, be->ofp_msg }; | |
6871 | ||
8be00367 JR |
6872 | /* Bump the lookup version to the one of the current |
6873 | * message. This makes all the changes in the bundle at | |
6874 | * this version visible to lookups at once. */ | |
6875 | if (ofproto->tables_version < be->ofm.version) { | |
6876 | ofproto->tables_version = be->ofm.version; | |
6877 | ofproto->ofproto_class->set_tables_version( | |
6878 | ofproto, ofproto->tables_version); | |
6879 | } | |
6880 | ||
6881 | ofproto_flow_mod_finish(ofproto, &be->ofm, &req); | |
1c38055d JR |
6882 | } else if (be->type == OFPTYPE_PORT_MOD) { |
6883 | /* Perform the actual port mod. This is not atomic, i.e., | |
6884 | * the effects will be immediately seen by upcall | |
6885 | * processing regardless of the lookup version. It should | |
6886 | * be noted that port configuration changes can originate | |
6887 | * also from OVSDB changes asynchronously to all upcall | |
6888 | * processing. */ | |
8be00367 | 6889 | port_mod_finish(ofconn, &be->opm.pm, be->opm.port); |
1f42be1c JR |
6890 | } |
6891 | } | |
6892 | } | |
1c38055d | 6893 | |
1f42be1c JR |
6894 | ofmonitor_flush(ofproto->connmgr); |
6895 | ovs_mutex_unlock(&ofproto_mutex); | |
6896 | ||
6897 | run_rule_executes(ofproto); | |
6898 | } | |
6899 | ||
6900 | /* The bundle is discarded regardless the outcome. */ | |
6901 | ofp_bundle_remove__(ofconn, bundle, !error); | |
6902 | return error; | |
6903 | } | |
6904 | ||
6905 | static enum ofperr | |
6906 | handle_bundle_control(struct ofconn *ofconn, const struct ofp_header *oh) | |
6907 | { | |
777af88d | 6908 | struct ofputil_bundle_ctrl_msg bctrl; |
777af88d | 6909 | struct ofputil_bundle_ctrl_msg reply; |
1f42be1c JR |
6910 | struct ofpbuf *buf; |
6911 | enum ofperr error; | |
777af88d | 6912 | |
ba9d374a JR |
6913 | error = reject_slave_controller(ofconn); |
6914 | if (error) { | |
6915 | return error; | |
6916 | } | |
6917 | ||
777af88d AC |
6918 | error = ofputil_decode_bundle_ctrl(oh, &bctrl); |
6919 | if (error) { | |
6920 | return error; | |
6921 | } | |
6922 | reply.flags = 0; | |
6923 | reply.bundle_id = bctrl.bundle_id; | |
6924 | ||
6925 | switch (bctrl.type) { | |
6926 | case OFPBCT_OPEN_REQUEST: | |
6927 | error = ofp_bundle_open(ofconn, bctrl.bundle_id, bctrl.flags); | |
6928 | reply.type = OFPBCT_OPEN_REPLY; | |
6929 | break; | |
6930 | case OFPBCT_CLOSE_REQUEST: | |
6931 | error = ofp_bundle_close(ofconn, bctrl.bundle_id, bctrl.flags); | |
6932 | reply.type = OFPBCT_CLOSE_REPLY;; | |
6933 | break; | |
6934 | case OFPBCT_COMMIT_REQUEST: | |
1f42be1c | 6935 | error = do_bundle_commit(ofconn, bctrl.bundle_id, bctrl.flags); |
777af88d AC |
6936 | reply.type = OFPBCT_COMMIT_REPLY; |
6937 | break; | |
6938 | case OFPBCT_DISCARD_REQUEST: | |
6939 | error = ofp_bundle_discard(ofconn, bctrl.bundle_id); | |
6940 | reply.type = OFPBCT_DISCARD_REPLY; | |
6941 | break; | |
6942 | ||
6943 | case OFPBCT_OPEN_REPLY: | |
6944 | case OFPBCT_CLOSE_REPLY: | |
6945 | case OFPBCT_COMMIT_REPLY: | |
6946 | case OFPBCT_DISCARD_REPLY: | |
6947 | return OFPERR_OFPBFC_BAD_TYPE; | |
6948 | break; | |
6949 | } | |
6950 | ||
6951 | if (!error) { | |
6952 | buf = ofputil_encode_bundle_ctrl_reply(oh, &reply); | |
6953 | ofconn_send_reply(ofconn, buf); | |
6954 | } | |
6955 | return error; | |
6956 | } | |
6957 | ||
777af88d AC |
6958 | static enum ofperr |
6959 | handle_bundle_add(struct ofconn *ofconn, const struct ofp_header *oh) | |
6960 | { | |
7ac27a04 | 6961 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
777af88d AC |
6962 | enum ofperr error; |
6963 | struct ofputil_bundle_add_msg badd; | |
7ac27a04 JR |
6964 | struct ofp_bundle_entry *bmsg; |
6965 | enum ofptype type; | |
777af88d | 6966 | |
ba9d374a JR |
6967 | error = reject_slave_controller(ofconn); |
6968 | if (error) { | |
6969 | return error; | |
6970 | } | |
6971 | ||
7ac27a04 | 6972 | error = ofputil_decode_bundle_add(oh, &badd, &type); |
777af88d AC |
6973 | if (error) { |
6974 | return error; | |
6975 | } | |
6976 | ||
1f42be1c | 6977 | bmsg = ofp_bundle_entry_alloc(type, badd.msg); |
7ac27a04 JR |
6978 | |
6979 | if (type == OFPTYPE_PORT_MOD) { | |
8be00367 | 6980 | error = ofputil_decode_port_mod(badd.msg, &bmsg->opm.pm, false); |
7ac27a04 JR |
6981 | } else if (type == OFPTYPE_FLOW_MOD) { |
6982 | struct ofpbuf ofpacts; | |
6983 | uint64_t ofpacts_stub[1024 / 8]; | |
6984 | ||
6985 | ofpbuf_use_stub(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); | |
8be00367 | 6986 | error = ofputil_decode_flow_mod(&bmsg->ofm.fm, badd.msg, |
7ac27a04 JR |
6987 | ofconn_get_protocol(ofconn), |
6988 | &ofpacts, | |
6989 | u16_to_ofp(ofproto->max_ports), | |
6990 | ofproto->n_tables); | |
6991 | /* Move actions to heap. */ | |
8be00367 | 6992 | bmsg->ofm.fm.ofpacts = ofpbuf_steal_data(&ofpacts); |
7ac27a04 | 6993 | |
8be00367 JR |
6994 | if (!error && bmsg->ofm.fm.ofpacts_len) { |
6995 | error = ofproto_check_ofpacts(ofproto, bmsg->ofm.fm.ofpacts, | |
6996 | bmsg->ofm.fm.ofpacts_len); | |
7ac27a04 JR |
6997 | } |
6998 | } else { | |
6999 | OVS_NOT_REACHED(); | |
7000 | } | |
7001 | ||
7002 | if (!error) { | |
7003 | error = ofp_bundle_add_message(ofconn, badd.bundle_id, badd.flags, | |
7004 | bmsg); | |
7005 | } | |
7006 | ||
7007 | if (error) { | |
7008 | ofp_bundle_entry_free(bmsg); | |
7009 | } | |
7010 | ||
7011 | return error; | |
777af88d AC |
7012 | } |
7013 | ||
6159c531 JG |
7014 | static enum ofperr |
7015 | handle_geneve_table_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
7016 | { | |
7017 | struct ofputil_geneve_table_mod gtm; | |
7018 | enum ofperr error; | |
7019 | ||
7020 | error = reject_slave_controller(ofconn); | |
7021 | if (error) { | |
7022 | return error; | |
7023 | } | |
7024 | ||
7025 | error = ofputil_decode_geneve_table_mod(oh, >m); | |
7026 | if (error) { | |
7027 | return error; | |
7028 | } | |
7029 | ||
9558d2a5 JG |
7030 | error = tun_metadata_table_mod(>m); |
7031 | ||
6159c531 | 7032 | ofputil_uninit_geneve_table(>m.mappings); |
9558d2a5 | 7033 | return error; |
6159c531 JG |
7034 | } |
7035 | ||
7036 | static enum ofperr | |
9558d2a5 | 7037 | handle_geneve_table_request(struct ofconn *ofconn, const struct ofp_header *oh) |
6159c531 | 7038 | { |
9558d2a5 JG |
7039 | struct ofputil_geneve_table_reply gtr; |
7040 | struct ofpbuf *b; | |
7041 | ||
7042 | tun_metadata_table_request(>r); | |
7043 | b = ofputil_encode_geneve_table_reply(oh, >r); | |
7044 | ofputil_uninit_geneve_table(>r.mappings); | |
7045 | ||
7046 | ofconn_send_reply(ofconn, b); | |
7047 | return 0; | |
6159c531 JG |
7048 | } |
7049 | ||
90bf1e07 | 7050 | static enum ofperr |
d1e2cf21 | 7051 | handle_openflow__(struct ofconn *ofconn, const struct ofpbuf *msg) |
15aaf599 | 7052 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 7053 | { |
6fd6ed71 | 7054 | const struct ofp_header *oh = msg->data; |
982697a4 | 7055 | enum ofptype type; |
90bf1e07 | 7056 | enum ofperr error; |
064af421 | 7057 | |
982697a4 | 7058 | error = ofptype_decode(&type, oh); |
d1e2cf21 BP |
7059 | if (error) { |
7060 | return error; | |
7061 | } | |
ff3c2c63 YT |
7062 | if (oh->version >= OFP13_VERSION && ofpmsg_is_stat_request(oh) |
7063 | && ofpmp_more(oh)) { | |
7064 | /* We have no buffer implementation for multipart requests. | |
7065 | * Report overflow for requests which consists of multiple | |
7066 | * messages. */ | |
7067 | return OFPERR_OFPBRC_MULTIPART_BUFFER_OVERFLOW; | |
7068 | } | |
064af421 | 7069 | |
982697a4 | 7070 | switch (type) { |
d1e2cf21 | 7071 | /* OpenFlow requests. */ |
982697a4 | 7072 | case OFPTYPE_ECHO_REQUEST: |
d1e2cf21 | 7073 | return handle_echo_request(ofconn, oh); |
064af421 | 7074 | |
982697a4 | 7075 | case OFPTYPE_FEATURES_REQUEST: |
d1e2cf21 | 7076 | return handle_features_request(ofconn, oh); |
064af421 | 7077 | |
982697a4 | 7078 | case OFPTYPE_GET_CONFIG_REQUEST: |
d1e2cf21 | 7079 | return handle_get_config_request(ofconn, oh); |
064af421 | 7080 | |
982697a4 BP |
7081 | case OFPTYPE_SET_CONFIG: |
7082 | return handle_set_config(ofconn, oh); | |
064af421 | 7083 | |
982697a4 BP |
7084 | case OFPTYPE_PACKET_OUT: |
7085 | return handle_packet_out(ofconn, oh); | |
064af421 | 7086 | |
982697a4 | 7087 | case OFPTYPE_PORT_MOD: |
d1e2cf21 | 7088 | return handle_port_mod(ofconn, oh); |
064af421 | 7089 | |
982697a4 | 7090 | case OFPTYPE_FLOW_MOD: |
2e4f5fcf | 7091 | return handle_flow_mod(ofconn, oh); |
064af421 | 7092 | |
7395c052 NZ |
7093 | case OFPTYPE_GROUP_MOD: |
7094 | return handle_group_mod(ofconn, oh); | |
7095 | ||
918f2b82 AZ |
7096 | case OFPTYPE_TABLE_MOD: |
7097 | return handle_table_mod(ofconn, oh); | |
7098 | ||
9cae45dc JR |
7099 | case OFPTYPE_METER_MOD: |
7100 | return handle_meter_mod(ofconn, oh); | |
7101 | ||
982697a4 | 7102 | case OFPTYPE_BARRIER_REQUEST: |
d1e2cf21 | 7103 | return handle_barrier_request(ofconn, oh); |
064af421 | 7104 | |
6ea4776b JR |
7105 | case OFPTYPE_ROLE_REQUEST: |
7106 | return handle_role_request(ofconn, oh); | |
7107 | ||
d1e2cf21 | 7108 | /* OpenFlow replies. */ |
982697a4 | 7109 | case OFPTYPE_ECHO_REPLY: |
d1e2cf21 | 7110 | return 0; |
246e61ea | 7111 | |
d1e2cf21 | 7112 | /* Nicira extension requests. */ |
982697a4 | 7113 | case OFPTYPE_FLOW_MOD_TABLE_ID: |
6c1491fb | 7114 | return handle_nxt_flow_mod_table_id(ofconn, oh); |
d1e2cf21 | 7115 | |
982697a4 | 7116 | case OFPTYPE_SET_FLOW_FORMAT: |
d1e2cf21 BP |
7117 | return handle_nxt_set_flow_format(ofconn, oh); |
7118 | ||
982697a4 | 7119 | case OFPTYPE_SET_PACKET_IN_FORMAT: |
54834960 EJ |
7120 | return handle_nxt_set_packet_in_format(ofconn, oh); |
7121 | ||
982697a4 | 7122 | case OFPTYPE_SET_CONTROLLER_ID: |
a7349929 BP |
7123 | return handle_nxt_set_controller_id(ofconn, oh); |
7124 | ||
982697a4 | 7125 | case OFPTYPE_FLOW_AGE: |
f27f2134 BP |
7126 | /* Nothing to do. */ |
7127 | return 0; | |
7128 | ||
982697a4 | 7129 | case OFPTYPE_FLOW_MONITOR_CANCEL: |
2b07c8b1 BP |
7130 | return handle_flow_monitor_cancel(ofconn, oh); |
7131 | ||
982697a4 | 7132 | case OFPTYPE_SET_ASYNC_CONFIG: |
80d5aefd BP |
7133 | return handle_nxt_set_async_config(ofconn, oh); |
7134 | ||
c423b3b3 AC |
7135 | case OFPTYPE_GET_ASYNC_REQUEST: |
7136 | return handle_nxt_get_async_request(ofconn, oh); | |
7137 | ||
349adfb2 | 7138 | /* Statistics requests. */ |
982697a4 BP |
7139 | case OFPTYPE_DESC_STATS_REQUEST: |
7140 | return handle_desc_stats_request(ofconn, oh); | |
7141 | ||
7142 | case OFPTYPE_FLOW_STATS_REQUEST: | |
7143 | return handle_flow_stats_request(ofconn, oh); | |
7144 | ||
7145 | case OFPTYPE_AGGREGATE_STATS_REQUEST: | |
7146 | return handle_aggregate_stats_request(ofconn, oh); | |
7147 | ||
7148 | case OFPTYPE_TABLE_STATS_REQUEST: | |
7149 | return handle_table_stats_request(ofconn, oh); | |
7150 | ||
3c4e10fb BP |
7151 | case OFPTYPE_TABLE_FEATURES_STATS_REQUEST: |
7152 | return handle_table_features_request(ofconn, oh); | |
7153 | ||
03c72922 BP |
7154 | case OFPTYPE_TABLE_DESC_REQUEST: |
7155 | return handle_table_desc_request(ofconn, oh); | |
7156 | ||
982697a4 BP |
7157 | case OFPTYPE_PORT_STATS_REQUEST: |
7158 | return handle_port_stats_request(ofconn, oh); | |
7159 | ||
7160 | case OFPTYPE_QUEUE_STATS_REQUEST: | |
7161 | return handle_queue_stats_request(ofconn, oh); | |
7162 | ||
7163 | case OFPTYPE_PORT_DESC_STATS_REQUEST: | |
7164 | return handle_port_desc_stats_request(ofconn, oh); | |
7165 | ||
7166 | case OFPTYPE_FLOW_MONITOR_STATS_REQUEST: | |
7167 | return handle_flow_monitor_request(ofconn, oh); | |
7168 | ||
261bd854 BP |
7169 | case OFPTYPE_METER_STATS_REQUEST: |
7170 | case OFPTYPE_METER_CONFIG_STATS_REQUEST: | |
9cae45dc JR |
7171 | return handle_meter_request(ofconn, oh, type); |
7172 | ||
261bd854 | 7173 | case OFPTYPE_METER_FEATURES_STATS_REQUEST: |
9cae45dc JR |
7174 | return handle_meter_features_request(ofconn, oh); |
7175 | ||
261bd854 | 7176 | case OFPTYPE_GROUP_STATS_REQUEST: |
7395c052 NZ |
7177 | return handle_group_stats_request(ofconn, oh); |
7178 | ||
261bd854 | 7179 | case OFPTYPE_GROUP_DESC_STATS_REQUEST: |
7395c052 NZ |
7180 | return handle_group_desc_stats_request(ofconn, oh); |
7181 | ||
261bd854 | 7182 | case OFPTYPE_GROUP_FEATURES_STATS_REQUEST: |
7395c052 NZ |
7183 | return handle_group_features_stats_request(ofconn, oh); |
7184 | ||
7395c052 | 7185 | case OFPTYPE_QUEUE_GET_CONFIG_REQUEST: |
e8f9a7bb | 7186 | return handle_queue_get_config_request(ofconn, oh); |
2e1ae200 | 7187 | |
777af88d AC |
7188 | case OFPTYPE_BUNDLE_CONTROL: |
7189 | return handle_bundle_control(ofconn, oh); | |
7190 | ||
7191 | case OFPTYPE_BUNDLE_ADD_MESSAGE: | |
7192 | return handle_bundle_add(ofconn, oh); | |
7193 | ||
6159c531 JG |
7194 | case OFPTYPE_NXT_GENEVE_TABLE_MOD: |
7195 | return handle_geneve_table_mod(ofconn, oh); | |
7196 | ||
7197 | case OFPTYPE_NXT_GENEVE_TABLE_REQUEST: | |
7198 | return handle_geneve_table_request(ofconn, oh); | |
7199 | ||
982697a4 BP |
7200 | case OFPTYPE_HELLO: |
7201 | case OFPTYPE_ERROR: | |
7202 | case OFPTYPE_FEATURES_REPLY: | |
7203 | case OFPTYPE_GET_CONFIG_REPLY: | |
7204 | case OFPTYPE_PACKET_IN: | |
7205 | case OFPTYPE_FLOW_REMOVED: | |
7206 | case OFPTYPE_PORT_STATUS: | |
7207 | case OFPTYPE_BARRIER_REPLY: | |
c545d38d | 7208 | case OFPTYPE_QUEUE_GET_CONFIG_REPLY: |
982697a4 BP |
7209 | case OFPTYPE_DESC_STATS_REPLY: |
7210 | case OFPTYPE_FLOW_STATS_REPLY: | |
7211 | case OFPTYPE_QUEUE_STATS_REPLY: | |
7212 | case OFPTYPE_PORT_STATS_REPLY: | |
7213 | case OFPTYPE_TABLE_STATS_REPLY: | |
7214 | case OFPTYPE_AGGREGATE_STATS_REPLY: | |
7215 | case OFPTYPE_PORT_DESC_STATS_REPLY: | |
7216 | case OFPTYPE_ROLE_REPLY: | |
7217 | case OFPTYPE_FLOW_MONITOR_PAUSED: | |
7218 | case OFPTYPE_FLOW_MONITOR_RESUMED: | |
7219 | case OFPTYPE_FLOW_MONITOR_STATS_REPLY: | |
2e1ae200 | 7220 | case OFPTYPE_GET_ASYNC_REPLY: |
261bd854 BP |
7221 | case OFPTYPE_GROUP_STATS_REPLY: |
7222 | case OFPTYPE_GROUP_DESC_STATS_REPLY: | |
7223 | case OFPTYPE_GROUP_FEATURES_STATS_REPLY: | |
7224 | case OFPTYPE_METER_STATS_REPLY: | |
7225 | case OFPTYPE_METER_CONFIG_STATS_REPLY: | |
7226 | case OFPTYPE_METER_FEATURES_STATS_REPLY: | |
7227 | case OFPTYPE_TABLE_FEATURES_STATS_REPLY: | |
03c72922 | 7228 | case OFPTYPE_TABLE_DESC_REPLY: |
252f3411 | 7229 | case OFPTYPE_ROLE_STATUS: |
6159c531 | 7230 | case OFPTYPE_NXT_GENEVE_TABLE_REPLY: |
064af421 | 7231 | default: |
76ec08e0 YT |
7232 | if (ofpmsg_is_stat_request(oh)) { |
7233 | return OFPERR_OFPBRC_BAD_STAT; | |
7234 | } else { | |
7235 | return OFPERR_OFPBRC_BAD_TYPE; | |
7236 | } | |
064af421 | 7237 | } |
d1e2cf21 | 7238 | } |
064af421 | 7239 | |
b20f4073 | 7240 | static void |
e03248b7 | 7241 | handle_openflow(struct ofconn *ofconn, const struct ofpbuf *ofp_msg) |
15aaf599 | 7242 | OVS_EXCLUDED(ofproto_mutex) |
d1e2cf21 | 7243 | { |
d51c8b71 JR |
7244 | enum ofperr error = handle_openflow__(ofconn, ofp_msg); |
7245 | ||
b20f4073 | 7246 | if (error) { |
6fd6ed71 | 7247 | ofconn_send_error(ofconn, ofp_msg->data, error); |
064af421 | 7248 | } |
d1e2cf21 | 7249 | COVERAGE_INC(ofproto_recv_openflow); |
7ee20df1 BP |
7250 | } |
7251 | \f | |
7252 | /* Asynchronous operations. */ | |
7253 | ||
c84d8691 JR |
7254 | static void |
7255 | send_buffered_packet(const struct flow_mod_requester *req, uint32_t buffer_id, | |
834fe5cb | 7256 | struct rule *rule) |
15aaf599 | 7257 | OVS_REQUIRES(ofproto_mutex) |
7ee20df1 | 7258 | { |
c84d8691 JR |
7259 | if (req && req->ofconn && buffer_id != UINT32_MAX) { |
7260 | struct ofproto *ofproto = ofconn_get_ofproto(req->ofconn); | |
cf62fa4c | 7261 | struct dp_packet *packet; |
834fe5cb | 7262 | ofp_port_t in_port; |
c84d8691 | 7263 | enum ofperr error; |
b277c7cc | 7264 | |
c84d8691 JR |
7265 | error = ofconn_pktbuf_retrieve(req->ofconn, buffer_id, &packet, |
7266 | &in_port); | |
834fe5cb BP |
7267 | if (packet) { |
7268 | struct rule_execute *re; | |
b277c7cc | 7269 | |
834fe5cb | 7270 | ofproto_rule_ref(rule); |
b277c7cc | 7271 | |
834fe5cb BP |
7272 | re = xmalloc(sizeof *re); |
7273 | re->rule = rule; | |
7274 | re->in_port = in_port; | |
7275 | re->packet = packet; | |
b277c7cc | 7276 | |
834fe5cb BP |
7277 | if (!guarded_list_push_back(&ofproto->rule_executes, |
7278 | &re->list_node, 1024)) { | |
a2143702 | 7279 | ofproto_rule_unref(rule); |
cf62fa4c | 7280 | dp_packet_delete(re->packet); |
834fe5cb | 7281 | free(re); |
e615b0a3 | 7282 | } |
c84d8691 JR |
7283 | } else { |
7284 | ofconn_send_error(req->ofconn, req->request, error); | |
af822017 | 7285 | } |
7ee20df1 | 7286 | } |
7ee20df1 | 7287 | } |
064af421 | 7288 | \f |
064af421 | 7289 | static uint64_t |
fa60c019 | 7290 | pick_datapath_id(const struct ofproto *ofproto) |
064af421 | 7291 | { |
fa60c019 | 7292 | const struct ofport *port; |
064af421 | 7293 | |
abe529af | 7294 | port = ofproto_get_port(ofproto, OFPP_LOCAL); |
fa60c019 BP |
7295 | if (port) { |
7296 | uint8_t ea[ETH_ADDR_LEN]; | |
7297 | int error; | |
7298 | ||
7299 | error = netdev_get_etheraddr(port->netdev, ea); | |
064af421 BP |
7300 | if (!error) { |
7301 | return eth_addr_to_uint64(ea); | |
7302 | } | |
fbfa2911 BP |
7303 | VLOG_WARN("%s: could not get MAC address for %s (%s)", |
7304 | ofproto->name, netdev_get_name(port->netdev), | |
10a89ef0 | 7305 | ovs_strerror(error)); |
064af421 | 7306 | } |
fa60c019 | 7307 | return ofproto->fallback_dpid; |
064af421 BP |
7308 | } |
7309 | ||
7310 | static uint64_t | |
7311 | pick_fallback_dpid(void) | |
7312 | { | |
7313 | uint8_t ea[ETH_ADDR_LEN]; | |
70150daf | 7314 | eth_addr_nicira_random(ea); |
064af421 BP |
7315 | return eth_addr_to_uint64(ea); |
7316 | } | |
7317 | \f | |
254750ce BP |
7318 | /* Table overflow policy. */ |
7319 | ||
ad3efdcb EJ |
7320 | /* Chooses and updates 'rulep' with a rule to evict from 'table'. Sets 'rulep' |
7321 | * to NULL if the table is not configured to evict rules or if the table | |
7322 | * contains no evictable rules. (Rules with a readlock on their evict rwlock, | |
7323 | * or with no timeouts are not evictable.) */ | |
7324 | static bool | |
7325 | choose_rule_to_evict(struct oftable *table, struct rule **rulep) | |
15aaf599 | 7326 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
7327 | { |
7328 | struct eviction_group *evg; | |
7329 | ||
ad3efdcb | 7330 | *rulep = NULL; |
82c22d34 | 7331 | if (!table->eviction) { |
ad3efdcb | 7332 | return false; |
254750ce BP |
7333 | } |
7334 | ||
7335 | /* In the common case, the outer and inner loops here will each be entered | |
7336 | * exactly once: | |
7337 | * | |
7338 | * - The inner loop normally "return"s in its first iteration. If the | |
7339 | * eviction group has any evictable rules, then it always returns in | |
7340 | * some iteration. | |
7341 | * | |
7342 | * - The outer loop only iterates more than once if the largest eviction | |
7343 | * group has no evictable rules. | |
7344 | * | |
7345 | * - The outer loop can exit only if table's 'max_flows' is all filled up | |
afe2143d | 7346 | * by unevictable rules. */ |
254750ce BP |
7347 | HEAP_FOR_EACH (evg, size_node, &table->eviction_groups_by_size) { |
7348 | struct rule *rule; | |
7349 | ||
7350 | HEAP_FOR_EACH (rule, evg_node, &evg->rules) { | |
15aaf599 BP |
7351 | *rulep = rule; |
7352 | return true; | |
254750ce BP |
7353 | } |
7354 | } | |
7355 | ||
ad3efdcb | 7356 | return false; |
254750ce | 7357 | } |
254750ce BP |
7358 | \f |
7359 | /* Eviction groups. */ | |
7360 | ||
7361 | /* Returns the priority to use for an eviction_group that contains 'n_rules' | |
7362 | * rules. The priority contains low-order random bits to ensure that eviction | |
7363 | * groups with the same number of rules are prioritized randomly. */ | |
7364 | static uint32_t | |
7365 | eviction_group_priority(size_t n_rules) | |
7366 | { | |
7367 | uint16_t size = MIN(UINT16_MAX, n_rules); | |
7368 | return (size << 16) | random_uint16(); | |
7369 | } | |
7370 | ||
7371 | /* Updates 'evg', an eviction_group within 'table', following a change that | |
7372 | * adds or removes rules in 'evg'. */ | |
7373 | static void | |
7374 | eviction_group_resized(struct oftable *table, struct eviction_group *evg) | |
15aaf599 | 7375 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
7376 | { |
7377 | heap_change(&table->eviction_groups_by_size, &evg->size_node, | |
7378 | eviction_group_priority(heap_count(&evg->rules))); | |
7379 | } | |
7380 | ||
7381 | /* Destroys 'evg', an eviction_group within 'table': | |
7382 | * | |
7383 | * - Removes all the rules, if any, from 'evg'. (It doesn't destroy the | |
7384 | * rules themselves, just removes them from the eviction group.) | |
7385 | * | |
7386 | * - Removes 'evg' from 'table'. | |
7387 | * | |
7388 | * - Frees 'evg'. */ | |
7389 | static void | |
7390 | eviction_group_destroy(struct oftable *table, struct eviction_group *evg) | |
15aaf599 | 7391 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
7392 | { |
7393 | while (!heap_is_empty(&evg->rules)) { | |
7394 | struct rule *rule; | |
7395 | ||
7396 | rule = CONTAINER_OF(heap_pop(&evg->rules), struct rule, evg_node); | |
7397 | rule->eviction_group = NULL; | |
7398 | } | |
7399 | hmap_remove(&table->eviction_groups_by_id, &evg->id_node); | |
7400 | heap_remove(&table->eviction_groups_by_size, &evg->size_node); | |
7401 | heap_destroy(&evg->rules); | |
7402 | free(evg); | |
7403 | } | |
7404 | ||
7405 | /* Removes 'rule' from its eviction group, if any. */ | |
7406 | static void | |
7407 | eviction_group_remove_rule(struct rule *rule) | |
15aaf599 | 7408 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
7409 | { |
7410 | if (rule->eviction_group) { | |
7411 | struct oftable *table = &rule->ofproto->tables[rule->table_id]; | |
7412 | struct eviction_group *evg = rule->eviction_group; | |
7413 | ||
7414 | rule->eviction_group = NULL; | |
7415 | heap_remove(&evg->rules, &rule->evg_node); | |
7416 | if (heap_is_empty(&evg->rules)) { | |
7417 | eviction_group_destroy(table, evg); | |
7418 | } else { | |
7419 | eviction_group_resized(table, evg); | |
7420 | } | |
7421 | } | |
7422 | } | |
7423 | ||
7424 | /* Hashes the 'rule''s values for the eviction_fields of 'rule''s table, and | |
7425 | * returns the hash value. */ | |
7426 | static uint32_t | |
7427 | eviction_group_hash_rule(struct rule *rule) | |
15aaf599 | 7428 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
7429 | { |
7430 | struct oftable *table = &rule->ofproto->tables[rule->table_id]; | |
7431 | const struct mf_subfield *sf; | |
5cb7a798 | 7432 | struct flow flow; |
254750ce BP |
7433 | uint32_t hash; |
7434 | ||
7435 | hash = table->eviction_group_id_basis; | |
8fd47924 | 7436 | miniflow_expand(rule->cr.match.flow, &flow); |
254750ce BP |
7437 | for (sf = table->eviction_fields; |
7438 | sf < &table->eviction_fields[table->n_eviction_fields]; | |
7439 | sf++) | |
7440 | { | |
5cb7a798 | 7441 | if (mf_are_prereqs_ok(sf->field, &flow)) { |
254750ce BP |
7442 | union mf_value value; |
7443 | ||
5cb7a798 | 7444 | mf_get_value(sf->field, &flow, &value); |
254750ce BP |
7445 | if (sf->ofs) { |
7446 | bitwise_zero(&value, sf->field->n_bytes, 0, sf->ofs); | |
7447 | } | |
7448 | if (sf->ofs + sf->n_bits < sf->field->n_bytes * 8) { | |
7449 | unsigned int start = sf->ofs + sf->n_bits; | |
7450 | bitwise_zero(&value, sf->field->n_bytes, start, | |
7451 | sf->field->n_bytes * 8 - start); | |
7452 | } | |
7453 | hash = hash_bytes(&value, sf->field->n_bytes, hash); | |
7454 | } else { | |
7455 | hash = hash_int(hash, 0); | |
7456 | } | |
7457 | } | |
7458 | ||
7459 | return hash; | |
7460 | } | |
7461 | ||
7462 | /* Returns an eviction group within 'table' with the given 'id', creating one | |
7463 | * if necessary. */ | |
7464 | static struct eviction_group * | |
7465 | eviction_group_find(struct oftable *table, uint32_t id) | |
15aaf599 | 7466 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
7467 | { |
7468 | struct eviction_group *evg; | |
7469 | ||
7470 | HMAP_FOR_EACH_WITH_HASH (evg, id_node, id, &table->eviction_groups_by_id) { | |
7471 | return evg; | |
7472 | } | |
7473 | ||
7474 | evg = xmalloc(sizeof *evg); | |
7475 | hmap_insert(&table->eviction_groups_by_id, &evg->id_node, id); | |
7476 | heap_insert(&table->eviction_groups_by_size, &evg->size_node, | |
7477 | eviction_group_priority(0)); | |
7478 | heap_init(&evg->rules); | |
7479 | ||
7480 | return evg; | |
7481 | } | |
7482 | ||
7483 | /* Returns an eviction priority for 'rule'. The return value should be | |
f70b94de BP |
7484 | * interpreted so that higher priorities make a rule a more attractive |
7485 | * candidate for eviction. */ | |
7486 | static uint64_t | |
dc437090 | 7487 | rule_eviction_priority(struct ofproto *ofproto, struct rule *rule) |
15aaf599 | 7488 | OVS_REQUIRES(ofproto_mutex) |
254750ce | 7489 | { |
f70b94de BP |
7490 | /* Calculate absolute time when this flow will expire. If it will never |
7491 | * expire, then return 0 to make it unevictable. */ | |
dc437090 | 7492 | long long int expiration = LLONG_MAX; |
dc437090 | 7493 | if (rule->hard_timeout) { |
f70b94de BP |
7494 | /* 'modified' needs protection even when we hold 'ofproto_mutex'. */ |
7495 | ovs_mutex_lock(&rule->mutex); | |
7496 | long long int modified = rule->modified; | |
7497 | ovs_mutex_unlock(&rule->mutex); | |
7498 | ||
dc437090 JR |
7499 | expiration = modified + rule->hard_timeout * 1000; |
7500 | } | |
7501 | if (rule->idle_timeout) { | |
7502 | uint64_t packets, bytes; | |
7503 | long long int used; | |
7504 | long long int idle_expiration; | |
7505 | ||
7506 | ofproto->ofproto_class->rule_get_stats(rule, &packets, &bytes, &used); | |
7507 | idle_expiration = used + rule->idle_timeout * 1000; | |
7508 | expiration = MIN(expiration, idle_expiration); | |
7509 | } | |
254750ce BP |
7510 | if (expiration == LLONG_MAX) { |
7511 | return 0; | |
7512 | } | |
7513 | ||
7514 | /* Calculate the time of expiration as a number of (approximate) seconds | |
7515 | * after program startup. | |
7516 | * | |
7517 | * This should work OK for program runs that last UINT32_MAX seconds or | |
7518 | * less. Therefore, please restart OVS at least once every 136 years. */ | |
f70b94de | 7519 | uint32_t expiration_ofs = (expiration >> 10) - (time_boot_msec() >> 10); |
254750ce | 7520 | |
f70b94de BP |
7521 | /* Combine expiration time with OpenFlow "importance" to form a single |
7522 | * priority value. We want flows with relatively low "importance" to be | |
7523 | * evicted before even considering expiration time, so put "importance" in | |
7524 | * the most significant bits and expiration time in the least significant | |
7525 | * bits. | |
7526 | * | |
7527 | * Small 'priority' should be evicted before those with large 'priority'. | |
7528 | * The caller expects the opposite convention (a large return value being | |
7529 | * more attractive for eviction) so we invert it before returning. */ | |
7530 | uint64_t priority = ((uint64_t) rule->importance << 32) + expiration_ofs; | |
7531 | return UINT64_MAX - priority; | |
254750ce BP |
7532 | } |
7533 | ||
7534 | /* Adds 'rule' to an appropriate eviction group for its oftable's | |
7535 | * configuration. Does nothing if 'rule''s oftable doesn't have eviction | |
7536 | * enabled, or if 'rule' is a permanent rule (one that will never expire on its | |
7537 | * own). | |
7538 | * | |
7539 | * The caller must ensure that 'rule' is not already in an eviction group. */ | |
7540 | static void | |
7541 | eviction_group_add_rule(struct rule *rule) | |
15aaf599 | 7542 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
7543 | { |
7544 | struct ofproto *ofproto = rule->ofproto; | |
7545 | struct oftable *table = &ofproto->tables[rule->table_id]; | |
a3779dbc | 7546 | bool has_timeout; |
254750ce | 7547 | |
dc437090 JR |
7548 | /* Timeouts may be modified only when holding 'ofproto_mutex'. We have it |
7549 | * so no additional protection is needed. */ | |
a3779dbc | 7550 | has_timeout = rule->hard_timeout || rule->idle_timeout; |
a3779dbc | 7551 | |
82c22d34 | 7552 | if (table->eviction && has_timeout) { |
254750ce BP |
7553 | struct eviction_group *evg; |
7554 | ||
7555 | evg = eviction_group_find(table, eviction_group_hash_rule(rule)); | |
7556 | ||
7557 | rule->eviction_group = evg; | |
7558 | heap_insert(&evg->rules, &rule->evg_node, | |
dc437090 | 7559 | rule_eviction_priority(ofproto, rule)); |
254750ce BP |
7560 | eviction_group_resized(table, evg); |
7561 | } | |
7562 | } | |
7563 | \f | |
d0918789 BP |
7564 | /* oftables. */ |
7565 | ||
7566 | /* Initializes 'table'. */ | |
7567 | static void | |
7568 | oftable_init(struct oftable *table) | |
7569 | { | |
5c67e4af | 7570 | memset(table, 0, sizeof *table); |
d70e8c28 | 7571 | classifier_init(&table->cls, flow_segment_u64s); |
ec1c5c7e | 7572 | table->max_flows = UINT_MAX; |
d79e3d70 | 7573 | table->n_flows = 0; |
82c22d34 BP |
7574 | hmap_init(&table->eviction_groups_by_id); |
7575 | heap_init(&table->eviction_groups_by_size); | |
3c1bb396 | 7576 | atomic_init(&table->miss_config, OFPUTIL_TABLE_MISS_DEFAULT); |
f017d986 | 7577 | |
f017d986 JR |
7578 | classifier_set_prefix_fields(&table->cls, default_prefix_fields, |
7579 | ARRAY_SIZE(default_prefix_fields)); | |
d611866c SH |
7580 | |
7581 | atomic_init(&table->n_matched, 0); | |
7582 | atomic_init(&table->n_missed, 0); | |
d0918789 BP |
7583 | } |
7584 | ||
254750ce | 7585 | /* Destroys 'table', including its classifier and eviction groups. |
d0918789 BP |
7586 | * |
7587 | * The caller is responsible for freeing 'table' itself. */ | |
7588 | static void | |
7589 | oftable_destroy(struct oftable *table) | |
7590 | { | |
cb22974d | 7591 | ovs_assert(classifier_is_empty(&table->cls)); |
82c22d34 | 7592 | |
7394b8fb | 7593 | ovs_mutex_lock(&ofproto_mutex); |
82c22d34 | 7594 | oftable_configure_eviction(table, 0, NULL, 0); |
7394b8fb | 7595 | ovs_mutex_unlock(&ofproto_mutex); |
82c22d34 BP |
7596 | |
7597 | hmap_destroy(&table->eviction_groups_by_id); | |
7598 | heap_destroy(&table->eviction_groups_by_size); | |
d0918789 | 7599 | classifier_destroy(&table->cls); |
254750ce BP |
7600 | free(table->name); |
7601 | } | |
7602 | ||
7603 | /* Changes the name of 'table' to 'name'. If 'name' is NULL or the empty | |
7604 | * string, then 'table' will use its default name. | |
7605 | * | |
7606 | * This only affects the name exposed for a table exposed through the OpenFlow | |
7607 | * OFPST_TABLE (as printed by "ovs-ofctl dump-tables"). */ | |
7608 | static void | |
7609 | oftable_set_name(struct oftable *table, const char *name) | |
7610 | { | |
7611 | if (name && name[0]) { | |
7612 | int len = strnlen(name, OFP_MAX_TABLE_NAME_LEN); | |
7613 | if (!table->name || strncmp(name, table->name, len)) { | |
7614 | free(table->name); | |
7615 | table->name = xmemdup0(name, len); | |
7616 | } | |
7617 | } else { | |
7618 | free(table->name); | |
7619 | table->name = NULL; | |
7620 | } | |
7621 | } | |
7622 | ||
254750ce BP |
7623 | /* oftables support a choice of two policies when adding a rule would cause the |
7624 | * number of flows in the table to exceed the configured maximum number: either | |
7625 | * they can refuse to add the new flow or they can evict some existing flow. | |
7626 | * This function configures the latter policy on 'table', with fairness based | |
7627 | * on the values of the 'n_fields' fields specified in 'fields'. (Specifying | |
7628 | * 'n_fields' as 0 disables fairness.) */ | |
7629 | static void | |
82c22d34 BP |
7630 | oftable_configure_eviction(struct oftable *table, unsigned int eviction, |
7631 | const struct mf_subfield *fields, size_t n_fields) | |
15aaf599 | 7632 | OVS_REQUIRES(ofproto_mutex) |
254750ce | 7633 | { |
254750ce BP |
7634 | struct rule *rule; |
7635 | ||
82c22d34 | 7636 | if ((table->eviction != 0) == (eviction != 0) |
254750ce BP |
7637 | && n_fields == table->n_eviction_fields |
7638 | && (!n_fields | |
7639 | || !memcmp(fields, table->eviction_fields, | |
7640 | n_fields * sizeof *fields))) { | |
82c22d34 BP |
7641 | /* The set of eviction fields did not change. If 'eviction' changed, |
7642 | * it remains nonzero, so that we can just update table->eviction | |
7643 | * without fussing with the eviction groups. */ | |
7644 | table->eviction = eviction; | |
254750ce BP |
7645 | return; |
7646 | } | |
7647 | ||
82c22d34 BP |
7648 | /* Destroy existing eviction groups, then destroy and recreate data |
7649 | * structures to recover memory. */ | |
7650 | struct eviction_group *evg, *next; | |
7651 | HMAP_FOR_EACH_SAFE (evg, next, id_node, &table->eviction_groups_by_id) { | |
7652 | eviction_group_destroy(table, evg); | |
7653 | } | |
7654 | hmap_destroy(&table->eviction_groups_by_id); | |
254750ce | 7655 | hmap_init(&table->eviction_groups_by_id); |
82c22d34 | 7656 | heap_destroy(&table->eviction_groups_by_size); |
254750ce BP |
7657 | heap_init(&table->eviction_groups_by_size); |
7658 | ||
82c22d34 BP |
7659 | /* Replace eviction groups by the new ones, if there is a change. Free the |
7660 | * old fields only after allocating the new ones, because 'fields == | |
7661 | * table->eviction_fields' is possible. */ | |
7662 | struct mf_subfield *old_fields = table->eviction_fields; | |
7663 | table->n_eviction_fields = n_fields; | |
7664 | table->eviction_fields = (fields | |
7665 | ? xmemdup(fields, n_fields * sizeof *fields) | |
7666 | : NULL); | |
7667 | free(old_fields); | |
7668 | ||
7669 | /* Add the new eviction groups, if enabled. */ | |
7670 | table->eviction = eviction; | |
7671 | if (table->eviction) { | |
7672 | table->eviction_group_id_basis = random_uint32(); | |
7673 | CLS_FOR_EACH (rule, cr, &table->cls) { | |
7674 | eviction_group_add_rule(rule); | |
7675 | } | |
254750ce | 7676 | } |
d0918789 BP |
7677 | } |
7678 | ||
bc5e6a91 JR |
7679 | /* Inserts 'rule' from the ofproto data structures BEFORE caller has inserted |
7680 | * it to the classifier. */ | |
7681 | static void | |
7682 | ofproto_rule_insert__(struct ofproto *ofproto, struct rule *rule) | |
7683 | OVS_REQUIRES(ofproto_mutex) | |
7684 | { | |
7685 | const struct rule_actions *actions = rule_get_actions(rule); | |
7686 | ||
39c94593 JR |
7687 | ovs_assert(rule->removed); |
7688 | ||
bc5e6a91 JR |
7689 | if (rule->hard_timeout || rule->idle_timeout) { |
7690 | list_insert(&ofproto->expirable, &rule->expirable); | |
7691 | } | |
7692 | cookies_insert(ofproto, rule); | |
7693 | eviction_group_add_rule(rule); | |
7694 | if (actions->has_meter) { | |
7695 | meter_insert_rule(rule); | |
7696 | } | |
39c94593 | 7697 | rule->removed = false; |
bc5e6a91 JR |
7698 | } |
7699 | ||
6787a49f JR |
7700 | /* Removes 'rule' from the ofproto data structures. Caller may have deferred |
7701 | * the removal from the classifier. */ | |
d0918789 | 7702 | static void |
802f84ff | 7703 | ofproto_rule_remove__(struct ofproto *ofproto, struct rule *rule) |
15aaf599 | 7704 | OVS_REQUIRES(ofproto_mutex) |
d0918789 | 7705 | { |
39c94593 JR |
7706 | ovs_assert(!rule->removed); |
7707 | ||
98eaac36 | 7708 | cookies_remove(ofproto, rule); |
2c916028 | 7709 | |
254750ce | 7710 | eviction_group_remove_rule(rule); |
e503cc19 SH |
7711 | if (!list_is_empty(&rule->expirable)) { |
7712 | list_remove(&rule->expirable); | |
7713 | } | |
9cae45dc JR |
7714 | if (!list_is_empty(&rule->meter_list_node)) { |
7715 | list_remove(&rule->meter_list_node); | |
51b50dfd | 7716 | list_init(&rule->meter_list_node); |
9cae45dc | 7717 | } |
802f84ff | 7718 | |
39c94593 | 7719 | rule->removed = true; |
0b4f2078 | 7720 | } |
d0918789 | 7721 | \f |
abe529af | 7722 | /* unixctl commands. */ |
7aa697dd | 7723 | |
abe529af | 7724 | struct ofproto * |
2ac6bedd | 7725 | ofproto_lookup(const char *name) |
7aa697dd | 7726 | { |
2ac6bedd | 7727 | struct ofproto *ofproto; |
7aa697dd | 7728 | |
2ac6bedd BP |
7729 | HMAP_FOR_EACH_WITH_HASH (ofproto, hmap_node, hash_string(name, 0), |
7730 | &all_ofprotos) { | |
7731 | if (!strcmp(ofproto->name, name)) { | |
7732 | return ofproto; | |
7733 | } | |
7aa697dd | 7734 | } |
2ac6bedd | 7735 | return NULL; |
7aa697dd BP |
7736 | } |
7737 | ||
7738 | static void | |
0e15264f BP |
7739 | ofproto_unixctl_list(struct unixctl_conn *conn, int argc OVS_UNUSED, |
7740 | const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED) | |
7aa697dd | 7741 | { |
7aa697dd | 7742 | struct ofproto *ofproto; |
7aa697dd | 7743 | struct ds results; |
7aa697dd | 7744 | |
7aa697dd | 7745 | ds_init(&results); |
2ac6bedd BP |
7746 | HMAP_FOR_EACH (ofproto, hmap_node, &all_ofprotos) { |
7747 | ds_put_format(&results, "%s\n", ofproto->name); | |
7aa697dd | 7748 | } |
bde9f75d | 7749 | unixctl_command_reply(conn, ds_cstr(&results)); |
7aa697dd | 7750 | ds_destroy(&results); |
7aa697dd BP |
7751 | } |
7752 | ||
7753 | static void | |
7754 | ofproto_unixctl_init(void) | |
7755 | { | |
7756 | static bool registered; | |
7757 | if (registered) { | |
7758 | return; | |
7759 | } | |
7760 | registered = true; | |
7761 | ||
0e15264f BP |
7762 | unixctl_command_register("ofproto/list", "", 0, 0, |
7763 | ofproto_unixctl_list, NULL); | |
064af421 | 7764 | } |
52a90c29 BP |
7765 | \f |
7766 | /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.) | |
7767 | * | |
7768 | * This is deprecated. It is only for compatibility with broken device drivers | |
7769 | * in old versions of Linux that do not properly support VLANs when VLAN | |
7770 | * devices are not used. When broken device drivers are no longer in | |
7771 | * widespread use, we will delete these interfaces. */ | |
7772 | ||
7773 | /* Sets a 1-bit in the 4096-bit 'vlan_bitmap' for each VLAN ID that is matched | |
7774 | * (exactly) by an OpenFlow rule in 'ofproto'. */ | |
7775 | void | |
7776 | ofproto_get_vlan_usage(struct ofproto *ofproto, unsigned long int *vlan_bitmap) | |
7777 | { | |
ac4aa4c8 JR |
7778 | struct match match; |
7779 | struct cls_rule target; | |
d0918789 | 7780 | const struct oftable *oftable; |
52a90c29 | 7781 | |
ac4aa4c8 JR |
7782 | match_init_catchall(&match); |
7783 | match_set_vlan_vid_masked(&match, htons(VLAN_CFI), htons(VLAN_CFI)); | |
bd53aa17 | 7784 | cls_rule_init(&target, &match, 0); |
ac4aa4c8 | 7785 | |
52a90c29 BP |
7786 | free(ofproto->vlan_bitmap); |
7787 | ofproto->vlan_bitmap = bitmap_allocate(4096); | |
7788 | ofproto->vlans_changed = false; | |
7789 | ||
d0918789 | 7790 | OFPROTO_FOR_EACH_TABLE (oftable, ofproto) { |
ac4aa4c8 | 7791 | struct rule *rule; |
52a90c29 | 7792 | |
bd53aa17 JR |
7793 | CLS_FOR_EACH_TARGET (rule, cr, &oftable->cls, &target, |
7794 | CLS_MAX_VERSION) { | |
8fd47924 JR |
7795 | if (minimask_get_vid_mask(rule->cr.match.mask) == VLAN_VID_MASK) { |
7796 | uint16_t vid = miniflow_get_vid(rule->cr.match.flow); | |
ac4aa4c8 JR |
7797 | |
7798 | bitmap_set1(vlan_bitmap, vid); | |
7799 | bitmap_set1(ofproto->vlan_bitmap, vid); | |
52a90c29 BP |
7800 | } |
7801 | } | |
7802 | } | |
059ef3c6 EJ |
7803 | |
7804 | cls_rule_destroy(&target); | |
52a90c29 BP |
7805 | } |
7806 | ||
7807 | /* Returns true if new VLANs have come into use by the flow table since the | |
7808 | * last call to ofproto_get_vlan_usage(). | |
7809 | * | |
7810 | * We don't track when old VLANs stop being used. */ | |
7811 | bool | |
7812 | ofproto_has_vlan_usage_changed(const struct ofproto *ofproto) | |
7813 | { | |
7814 | return ofproto->vlans_changed; | |
7815 | } | |
7816 | ||
7817 | /* Configures a VLAN splinter binding between the ports identified by OpenFlow | |
7818 | * port numbers 'vlandev_ofp_port' and 'realdev_ofp_port'. If | |
7819 | * 'realdev_ofp_port' is nonzero, then the VLAN device is enslaved to the real | |
7820 | * device as a VLAN splinter for VLAN ID 'vid'. If 'realdev_ofp_port' is zero, | |
7821 | * then the VLAN device is un-enslaved. */ | |
7822 | int | |
4e022ec0 AW |
7823 | ofproto_port_set_realdev(struct ofproto *ofproto, ofp_port_t vlandev_ofp_port, |
7824 | ofp_port_t realdev_ofp_port, int vid) | |
52a90c29 BP |
7825 | { |
7826 | struct ofport *ofport; | |
7827 | int error; | |
7828 | ||
cb22974d | 7829 | ovs_assert(vlandev_ofp_port != realdev_ofp_port); |
52a90c29 BP |
7830 | |
7831 | ofport = ofproto_get_port(ofproto, vlandev_ofp_port); | |
7832 | if (!ofport) { | |
7833 | VLOG_WARN("%s: cannot set realdev on nonexistent port %"PRIu16, | |
7834 | ofproto->name, vlandev_ofp_port); | |
7835 | return EINVAL; | |
7836 | } | |
7837 | ||
7838 | if (!ofproto->ofproto_class->set_realdev) { | |
7839 | if (!vlandev_ofp_port) { | |
7840 | return 0; | |
7841 | } | |
7842 | VLOG_WARN("%s: vlan splinters not supported", ofproto->name); | |
7843 | return EOPNOTSUPP; | |
7844 | } | |
7845 | ||
7846 | error = ofproto->ofproto_class->set_realdev(ofport, realdev_ofp_port, vid); | |
7847 | if (error) { | |
7848 | VLOG_WARN("%s: setting realdev on port %"PRIu16" (%s) failed (%s)", | |
7849 | ofproto->name, vlandev_ofp_port, | |
10a89ef0 | 7850 | netdev_get_name(ofport->netdev), ovs_strerror(error)); |
52a90c29 BP |
7851 | } |
7852 | return error; | |
7853 | } |