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064af421 | 1 | /* |
39cc5c4a | 2 | * Copyright (c) 2009-2016 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> | |
064af421 BP |
19 | #include <errno.h> |
20 | #include <inttypes.h> | |
064af421 BP |
21 | #include <stdbool.h> |
22 | #include <stdlib.h> | |
448a4b2f | 23 | #include <unistd.h> |
b598f214 | 24 | |
52a90c29 | 25 | #include "bitmap.h" |
b598f214 | 26 | #include "bundles.h" |
10a24935 | 27 | #include "byte-order.h" |
064af421 | 28 | #include "classifier.h" |
da4a6191 | 29 | #include "connectivity.h" |
19a87e36 | 30 | #include "connmgr.h" |
064af421 | 31 | #include "coverage.h" |
b598f214 | 32 | #include "dp-packet.h" |
ca0f572c | 33 | #include "hash.h" |
ee89ea7b | 34 | #include "openvswitch/hmap.h" |
064af421 | 35 | #include "netdev.h" |
09246b99 | 36 | #include "nx-match.h" |
b598f214 | 37 | #include "ofproto.h" |
5bee6e26 | 38 | #include "ofproto-provider.h" |
064af421 BP |
39 | #include "openflow/nicira-ext.h" |
40 | #include "openflow/openflow.h" | |
d271907f BW |
41 | #include "openvswitch/dynamic-string.h" |
42 | #include "openvswitch/meta-flow.h" | |
b598f214 | 43 | #include "openvswitch/ofp-actions.h" |
d271907f BW |
44 | #include "openvswitch/ofp-errors.h" |
45 | #include "openvswitch/ofp-msgs.h" | |
25d436fb | 46 | #include "openvswitch/ofp-print.h" |
d271907f BW |
47 | #include "openvswitch/ofp-util.h" |
48 | #include "openvswitch/ofpbuf.h" | |
49 | #include "openvswitch/vlog.h" | |
06a0f3e2 | 50 | #include "ovs-rcu.h" |
064af421 BP |
51 | #include "packets.h" |
52 | #include "pinsched.h" | |
064af421 | 53 | #include "poll-loop.h" |
254750ce | 54 | #include "random.h" |
da4a6191 | 55 | #include "seq.h" |
ee89ea7b | 56 | #include "openvswitch/shash.h" |
0d085684 | 57 | #include "simap.h" |
e8f9a7bb | 58 | #include "smap.h" |
b3c01ed3 | 59 | #include "sset.h" |
064af421 | 60 | #include "timeval.h" |
9558d2a5 | 61 | #include "tun-metadata.h" |
c4617b3c | 62 | #include "unaligned.h" |
4f2cad2c | 63 | #include "unixctl.h" |
ee89ea7b | 64 | #include "util.h" |
064af421 | 65 | |
d98e6007 | 66 | VLOG_DEFINE_THIS_MODULE(ofproto); |
064af421 | 67 | |
d76f09ea | 68 | COVERAGE_DEFINE(ofproto_flush); |
d76f09ea BP |
69 | COVERAGE_DEFINE(ofproto_packet_out); |
70 | COVERAGE_DEFINE(ofproto_queue_req); | |
71 | COVERAGE_DEFINE(ofproto_recv_openflow); | |
72 | COVERAGE_DEFINE(ofproto_reinit_ports); | |
d76f09ea BP |
73 | COVERAGE_DEFINE(ofproto_update_port); |
74 | ||
f017d986 JR |
75 | /* Default fields to use for prefix tries in each flow table, unless something |
76 | * else is configured. */ | |
77 | const enum mf_field_id default_prefix_fields[2] = | |
78 | { MFF_IPV4_DST, MFF_IPV4_SRC }; | |
79 | ||
d0918789 BP |
80 | /* oftable. */ |
81 | static void oftable_init(struct oftable *); | |
82 | static void oftable_destroy(struct oftable *); | |
878ae780 | 83 | |
254750ce BP |
84 | static void oftable_set_name(struct oftable *, const char *name); |
85 | ||
6787a49f | 86 | static enum ofperr evict_rules_from_table(struct oftable *) |
834fe5cb | 87 | OVS_REQUIRES(ofproto_mutex); |
82c22d34 BP |
88 | static void oftable_configure_eviction(struct oftable *, |
89 | unsigned int eviction, | |
90 | const struct mf_subfield *fields, | |
91 | size_t n_fields) | |
7394b8fb | 92 | OVS_REQUIRES(ofproto_mutex); |
254750ce | 93 | |
82c22d34 BP |
94 | /* This is the only combination of OpenFlow eviction flags that OVS supports: a |
95 | * combination of OF1.4+ importance, the remaining lifetime of the flow, and | |
96 | * fairness based on user-specified fields. */ | |
97 | #define OFPROTO_EVICTION_FLAGS \ | |
98 | (OFPTMPEF14_OTHER | OFPTMPEF14_IMPORTANCE | OFPTMPEF14_LIFETIME) | |
99 | ||
254750ce BP |
100 | /* A set of rules within a single OpenFlow table (oftable) that have the same |
101 | * values for the oftable's eviction_fields. A rule to be evicted, when one is | |
102 | * needed, is taken from the eviction group that contains the greatest number | |
103 | * of rules. | |
104 | * | |
105 | * An oftable owns any number of eviction groups, each of which contains any | |
106 | * number of rules. | |
107 | * | |
108 | * Membership in an eviction group is imprecise, based on the hash of the | |
109 | * oftable's eviction_fields (in the eviction_group's id_node.hash member). | |
110 | * That is, if two rules have different eviction_fields, but those | |
111 | * eviction_fields hash to the same value, then they will belong to the same | |
112 | * eviction_group anyway. | |
113 | * | |
114 | * (When eviction is not enabled on an oftable, we don't track any eviction | |
115 | * groups, to save time and space.) */ | |
116 | struct eviction_group { | |
117 | struct hmap_node id_node; /* In oftable's "eviction_groups_by_id". */ | |
118 | struct heap_node size_node; /* In oftable's "eviction_groups_by_size". */ | |
119 | struct heap rules; /* Contains "struct rule"s. */ | |
120 | }; | |
121 | ||
3d900aa7 BP |
122 | static bool choose_rule_to_evict(struct oftable *table, struct rule **rulep) |
123 | OVS_REQUIRES(ofproto_mutex); | |
f70b94de BP |
124 | static uint64_t rule_eviction_priority(struct ofproto *ofproto, struct rule *) |
125 | OVS_REQUIRES(ofproto_mutex); | |
3d900aa7 BP |
126 | static void eviction_group_add_rule(struct rule *) |
127 | OVS_REQUIRES(ofproto_mutex); | |
128 | static void eviction_group_remove_rule(struct rule *) | |
129 | OVS_REQUIRES(ofproto_mutex); | |
f29152ca | 130 | |
a9b22b7f | 131 | static void rule_criteria_init(struct rule_criteria *, uint8_t table_id, |
eb391b76 | 132 | const struct match *match, int priority, |
44e0c35d | 133 | ovs_version_t version, |
a9b22b7f BP |
134 | ovs_be64 cookie, ovs_be64 cookie_mask, |
135 | ofp_port_t out_port, uint32_t out_group); | |
dd51dae2 BP |
136 | static void rule_criteria_require_rw(struct rule_criteria *, |
137 | bool can_write_readonly); | |
a9b22b7f BP |
138 | static void rule_criteria_destroy(struct rule_criteria *); |
139 | ||
35f48b8b BP |
140 | static enum ofperr collect_rules_loose(struct ofproto *, |
141 | const struct rule_criteria *, | |
142 | struct rule_collection *); | |
143 | ||
35f48b8b BP |
144 | struct learned_cookie { |
145 | union { | |
146 | /* In struct ofproto's 'learned_cookies' hmap. */ | |
147 | struct hmap_node hmap_node OVS_GUARDED_BY(ofproto_mutex); | |
148 | ||
149 | /* In 'dead_cookies' list when removed from hmap. */ | |
ca6ba700 | 150 | struct ovs_list list_node; |
35f48b8b BP |
151 | } u; |
152 | ||
153 | /* Key. */ | |
154 | ovs_be64 cookie OVS_GUARDED_BY(ofproto_mutex); | |
155 | uint8_t table_id OVS_GUARDED_BY(ofproto_mutex); | |
156 | ||
157 | /* Number of references from "learn" actions. | |
158 | * | |
159 | * When this drops to 0, all of the flows in 'table_id' with the specified | |
160 | * 'cookie' are deleted. */ | |
161 | int n OVS_GUARDED_BY(ofproto_mutex); | |
162 | }; | |
163 | ||
164 | static const struct ofpact_learn *next_learn_with_delete( | |
165 | const struct rule_actions *, const struct ofpact_learn *start); | |
166 | ||
167 | static void learned_cookies_inc(struct ofproto *, const struct rule_actions *) | |
168 | OVS_REQUIRES(ofproto_mutex); | |
169 | static void learned_cookies_dec(struct ofproto *, const struct rule_actions *, | |
ca6ba700 | 170 | struct ovs_list *dead_cookies) |
35f48b8b | 171 | OVS_REQUIRES(ofproto_mutex); |
ca6ba700 | 172 | static void learned_cookies_flush(struct ofproto *, struct ovs_list *dead_cookies) |
35f48b8b BP |
173 | OVS_REQUIRES(ofproto_mutex); |
174 | ||
d0918789 | 175 | /* ofport. */ |
15aaf599 | 176 | static void ofport_destroy__(struct ofport *) OVS_EXCLUDED(ofproto_mutex); |
9aad5a5a | 177 | static void ofport_destroy(struct ofport *, bool del); |
3a414a0a DDP |
178 | static bool ofport_is_mtu_overridden(const struct ofproto *, |
179 | const struct ofport *); | |
d0918789 | 180 | |
01c77073 | 181 | static int update_port(struct ofproto *, const char *devname); |
d0918789 BP |
182 | static int init_ports(struct ofproto *); |
183 | static void reinit_ports(struct ofproto *); | |
7ee20df1 | 184 | |
fdcea803 GS |
185 | static long long int ofport_get_usage(const struct ofproto *, |
186 | ofp_port_t ofp_port); | |
187 | static void ofport_set_usage(struct ofproto *, ofp_port_t ofp_port, | |
188 | long long int last_used); | |
865b26a4 | 189 | static void ofport_remove_usage(struct ofproto *, ofp_port_t ofp_port); |
fdcea803 GS |
190 | |
191 | /* Ofport usage. | |
192 | * | |
193 | * Keeps track of the currently used and recently used ofport values and is | |
194 | * used to prevent immediate recycling of ofport values. */ | |
195 | struct ofport_usage { | |
196 | struct hmap_node hmap_node; /* In struct ofproto's "ofport_usage" hmap. */ | |
197 | ofp_port_t ofp_port; /* OpenFlow port number. */ | |
198 | long long int last_used; /* Last time the 'ofp_port' was used. LLONG_MAX | |
199 | represents in-use ofports. */ | |
200 | }; | |
201 | ||
254750ce | 202 | /* rule. */ |
f695ebfa JR |
203 | static void ofproto_rule_send_removed(struct rule *) |
204 | OVS_EXCLUDED(ofproto_mutex); | |
834fe5cb | 205 | static bool rule_is_readonly(const struct rule *); |
bc5e6a91 JR |
206 | static void ofproto_rule_insert__(struct ofproto *, struct rule *) |
207 | OVS_REQUIRES(ofproto_mutex); | |
802f84ff JR |
208 | static void ofproto_rule_remove__(struct ofproto *, struct rule *) |
209 | OVS_REQUIRES(ofproto_mutex); | |
254750ce | 210 | |
0a0d9385 | 211 | /* The source of an OpenFlow request. |
baae3d02 | 212 | * |
0a0d9385 JR |
213 | * A table modification request can be generated externally, via OpenFlow, or |
214 | * internally through a function call. This structure indicates the source of | |
215 | * an OpenFlow-generated table modification. For an internal flow_mod, it | |
216 | * isn't meaningful and thus supplied as NULL. */ | |
217 | struct openflow_mod_requester { | |
baae3d02 | 218 | struct ofconn *ofconn; /* Connection on which flow_mod arrived. */ |
c84d8691 | 219 | const struct ofp_header *request; |
baae3d02 BP |
220 | }; |
221 | ||
d0918789 | 222 | /* OpenFlow. */ |
5bacd5cd JR |
223 | static enum ofperr ofproto_rule_create(struct ofproto *, struct cls_rule *, |
224 | uint8_t table_id, ovs_be64 new_cookie, | |
225 | uint16_t idle_timeout, | |
226 | uint16_t hard_timeout, | |
227 | enum ofputil_flow_mod_flags flags, | |
228 | uint16_t importance, | |
229 | const struct ofpact *ofpacts, | |
230 | size_t ofpacts_len, | |
39c94593 | 231 | struct rule **new_rule) |
5bacd5cd | 232 | OVS_NO_THREAD_SAFETY_ANALYSIS; |
39c94593 | 233 | |
5bacd5cd JR |
234 | static void replace_rule_start(struct ofproto *, struct ofproto_flow_mod *, |
235 | struct rule *old_rule, struct rule *new_rule) | |
dd27be82 | 236 | OVS_REQUIRES(ofproto_mutex); |
39c94593 | 237 | |
6787a49f JR |
238 | static void replace_rule_revert(struct ofproto *, struct rule *old_rule, |
239 | struct rule *new_rule) | |
39c94593 JR |
240 | OVS_REQUIRES(ofproto_mutex); |
241 | ||
81dee635 | 242 | static void replace_rule_finish(struct ofproto *, struct ofproto_flow_mod *, |
0a0d9385 | 243 | const struct openflow_mod_requester *, |
39c94593 JR |
244 | struct rule *old_rule, struct rule *new_rule, |
245 | struct ovs_list *dead_cookies) | |
dd27be82 | 246 | OVS_REQUIRES(ofproto_mutex); |
39c94593 | 247 | static void delete_flows__(struct rule_collection *, |
9ca4a86f | 248 | enum ofp_flow_removed_reason, |
0a0d9385 | 249 | const struct openflow_mod_requester *) |
15aaf599 | 250 | OVS_REQUIRES(ofproto_mutex); |
834fe5cb | 251 | |
db88b35c | 252 | static bool ofproto_group_exists(const struct ofproto *, uint32_t group_id); |
b20f4073 | 253 | static void handle_openflow(struct ofconn *, const struct ofpbuf *); |
5bacd5cd JR |
254 | static enum ofperr ofproto_flow_mod_init(struct ofproto *, |
255 | struct ofproto_flow_mod *, | |
256 | const struct ofputil_flow_mod *fm) | |
257 | OVS_EXCLUDED(ofproto_mutex); | |
8be00367 JR |
258 | static enum ofperr ofproto_flow_mod_start(struct ofproto *, |
259 | struct ofproto_flow_mod *) | |
1f42be1c | 260 | OVS_REQUIRES(ofproto_mutex); |
8be00367 JR |
261 | static void ofproto_flow_mod_finish(struct ofproto *, |
262 | struct ofproto_flow_mod *, | |
0a0d9385 | 263 | const struct openflow_mod_requester *) |
1f42be1c | 264 | OVS_REQUIRES(ofproto_mutex); |
baae3d02 | 265 | static enum ofperr handle_flow_mod__(struct ofproto *, |
7338102b | 266 | const struct ofputil_flow_mod *, |
0a0d9385 | 267 | const struct openflow_mod_requester *) |
15aaf599 | 268 | OVS_EXCLUDED(ofproto_mutex); |
65e0be10 BP |
269 | static void calc_duration(long long int start, long long int now, |
270 | uint32_t *sec, uint32_t *nsec); | |
f29152ca | 271 | |
d0918789 BP |
272 | /* ofproto. */ |
273 | static uint64_t pick_datapath_id(const struct ofproto *); | |
274 | static uint64_t pick_fallback_dpid(void); | |
275 | static void ofproto_destroy__(struct ofproto *); | |
ada3428f | 276 | static void update_mtu(struct ofproto *, struct ofport *); |
0670b5d0 | 277 | static void update_mtu_ofproto(struct ofproto *); |
6b3f7f02 | 278 | static void meter_delete(struct ofproto *, uint32_t first, uint32_t last); |
062fea06 | 279 | static void meter_insert_rule(struct rule *); |
f29152ca | 280 | |
d0918789 | 281 | /* unixctl. */ |
abe529af | 282 | static void ofproto_unixctl_init(void); |
f29152ca | 283 | |
abe529af BP |
284 | /* All registered ofproto classes, in probe order. */ |
285 | static const struct ofproto_class **ofproto_classes; | |
286 | static size_t n_ofproto_classes; | |
287 | static size_t allocated_ofproto_classes; | |
7aa697dd | 288 | |
15aaf599 BP |
289 | /* Global lock that protects all flow table operations. */ |
290 | struct ovs_mutex ofproto_mutex = OVS_MUTEX_INITIALIZER; | |
abe7b10f | 291 | |
e79a6c83 | 292 | unsigned ofproto_flow_limit = OFPROTO_FLOW_LIMIT_DEFAULT; |
72310b04 | 293 | unsigned ofproto_max_idle = OFPROTO_MAX_IDLE_DEFAULT; |
380f49c4 | 294 | |
e79a6c83 | 295 | size_t n_handlers, n_revalidators; |
f2eee189 | 296 | char *pmd_cpu_mask; |
6567010f | 297 | |
f797957a | 298 | /* Map from datapath name to struct ofproto, for use by unixctl commands. */ |
abe529af | 299 | static struct hmap all_ofprotos = HMAP_INITIALIZER(&all_ofprotos); |
ebe482fd | 300 | |
e1b1d06a JP |
301 | /* Initial mappings of port to OpenFlow number mappings. */ |
302 | static struct shash init_ofp_ports = SHASH_INITIALIZER(&init_ofp_ports); | |
303 | ||
abe529af | 304 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); |
f29152ca | 305 | |
40358701 GS |
306 | /* The default value of true waits for flow restore. */ |
307 | static bool flow_restore_wait = true; | |
308 | ||
b0408fca JP |
309 | /* Must be called to initialize the ofproto library. |
310 | * | |
311 | * The caller may pass in 'iface_hints', which contains an shash of | |
312 | * "iface_hint" elements indexed by the interface's name. The provider | |
313 | * may use these hints to describe the startup configuration in order to | |
314 | * reinitialize its state. The caller owns the provided data, so a | |
315 | * provider will make copies of anything required. An ofproto provider | |
316 | * will remove any existing state that is not described by the hint, and | |
317 | * may choose to remove it all. */ | |
318 | void | |
319 | ofproto_init(const struct shash *iface_hints) | |
abe529af | 320 | { |
e1b1d06a | 321 | struct shash_node *node; |
b0408fca | 322 | size_t i; |
f29152ca | 323 | |
b0408fca JP |
324 | ofproto_class_register(&ofproto_dpif_class); |
325 | ||
e1b1d06a JP |
326 | /* Make a local copy, since we don't own 'iface_hints' elements. */ |
327 | SHASH_FOR_EACH(node, iface_hints) { | |
328 | const struct iface_hint *orig_hint = node->data; | |
329 | struct iface_hint *new_hint = xmalloc(sizeof *new_hint); | |
330 | const char *br_type = ofproto_normalize_type(orig_hint->br_type); | |
331 | ||
332 | new_hint->br_name = xstrdup(orig_hint->br_name); | |
333 | new_hint->br_type = xstrdup(br_type); | |
334 | new_hint->ofp_port = orig_hint->ofp_port; | |
335 | ||
336 | shash_add(&init_ofp_ports, node->name, new_hint); | |
337 | } | |
338 | ||
b0408fca | 339 | for (i = 0; i < n_ofproto_classes; i++) { |
e1b1d06a | 340 | ofproto_classes[i]->init(&init_ofp_ports); |
abe529af | 341 | } |
0fc1f5c0 HH |
342 | |
343 | ofproto_unixctl_init(); | |
abe529af | 344 | } |
f29152ca | 345 | |
abe529af BP |
346 | /* 'type' should be a normalized datapath type, as returned by |
347 | * ofproto_normalize_type(). Returns the corresponding ofproto_class | |
348 | * structure, or a null pointer if there is none registered for 'type'. */ | |
349 | static const struct ofproto_class * | |
350 | ofproto_class_find__(const char *type) | |
351 | { | |
352 | size_t i; | |
f29152ca | 353 | |
abe529af BP |
354 | for (i = 0; i < n_ofproto_classes; i++) { |
355 | const struct ofproto_class *class = ofproto_classes[i]; | |
356 | struct sset types; | |
357 | bool found; | |
064af421 | 358 | |
abe529af BP |
359 | sset_init(&types); |
360 | class->enumerate_types(&types); | |
361 | found = sset_contains(&types, type); | |
362 | sset_destroy(&types); | |
bcf84111 | 363 | |
abe529af BP |
364 | if (found) { |
365 | return class; | |
366 | } | |
367 | } | |
368 | VLOG_WARN("unknown datapath type %s", type); | |
369 | return NULL; | |
370 | } | |
064af421 | 371 | |
abe529af BP |
372 | /* Registers a new ofproto class. After successful registration, new ofprotos |
373 | * of that type can be created using ofproto_create(). */ | |
374 | int | |
375 | ofproto_class_register(const struct ofproto_class *new_class) | |
376 | { | |
377 | size_t i; | |
7aa697dd | 378 | |
abe529af BP |
379 | for (i = 0; i < n_ofproto_classes; i++) { |
380 | if (ofproto_classes[i] == new_class) { | |
381 | return EEXIST; | |
382 | } | |
383 | } | |
064af421 | 384 | |
abe529af BP |
385 | if (n_ofproto_classes >= allocated_ofproto_classes) { |
386 | ofproto_classes = x2nrealloc(ofproto_classes, | |
387 | &allocated_ofproto_classes, | |
388 | sizeof *ofproto_classes); | |
389 | } | |
390 | ofproto_classes[n_ofproto_classes++] = new_class; | |
391 | return 0; | |
392 | } | |
064af421 | 393 | |
abe529af BP |
394 | /* Unregisters a datapath provider. 'type' must have been previously |
395 | * registered and not currently be in use by any ofprotos. After | |
396 | * unregistration new datapaths of that type cannot be opened using | |
397 | * ofproto_create(). */ | |
398 | int | |
399 | ofproto_class_unregister(const struct ofproto_class *class) | |
400 | { | |
401 | size_t i; | |
76ce9432 | 402 | |
abe529af BP |
403 | for (i = 0; i < n_ofproto_classes; i++) { |
404 | if (ofproto_classes[i] == class) { | |
405 | for (i++; i < n_ofproto_classes; i++) { | |
406 | ofproto_classes[i - 1] = ofproto_classes[i]; | |
407 | } | |
408 | n_ofproto_classes--; | |
409 | return 0; | |
410 | } | |
411 | } | |
412 | VLOG_WARN("attempted to unregister an ofproto class that is not " | |
413 | "registered"); | |
414 | return EAFNOSUPPORT; | |
415 | } | |
4a4cdb3b | 416 | |
f79e673f BP |
417 | /* Clears 'types' and enumerates all registered ofproto types into it. The |
418 | * caller must first initialize the sset. */ | |
419 | void | |
420 | ofproto_enumerate_types(struct sset *types) | |
421 | { | |
abe529af | 422 | size_t i; |
064af421 | 423 | |
c799c306 | 424 | sset_clear(types); |
abe529af BP |
425 | for (i = 0; i < n_ofproto_classes; i++) { |
426 | ofproto_classes[i]->enumerate_types(types); | |
427 | } | |
f79e673f | 428 | } |
064af421 | 429 | |
f79e673f BP |
430 | /* Returns the fully spelled out name for the given ofproto 'type'. |
431 | * | |
432 | * Normalized type string can be compared with strcmp(). Unnormalized type | |
433 | * string might be the same even if they have different spellings. */ | |
434 | const char * | |
435 | ofproto_normalize_type(const char *type) | |
436 | { | |
abe529af | 437 | return type && type[0] ? type : "system"; |
f79e673f | 438 | } |
064af421 | 439 | |
f79e673f BP |
440 | /* Clears 'names' and enumerates the names of all known created ofprotos with |
441 | * the given 'type'. The caller must first initialize the sset. Returns 0 if | |
442 | * successful, otherwise a positive errno value. | |
443 | * | |
444 | * Some kinds of datapaths might not be practically enumerable. This is not | |
445 | * considered an error. */ | |
446 | int | |
447 | ofproto_enumerate_names(const char *type, struct sset *names) | |
448 | { | |
abe529af BP |
449 | const struct ofproto_class *class = ofproto_class_find__(type); |
450 | return class ? class->enumerate_names(type, names) : EAFNOSUPPORT; | |
239ad7d1 | 451 | } |
7aa697dd | 452 | |
39c94593 JR |
453 | static void |
454 | ofproto_bump_tables_version(struct ofproto *ofproto) | |
455 | { | |
456 | ++ofproto->tables_version; | |
457 | ofproto->ofproto_class->set_tables_version(ofproto, | |
458 | ofproto->tables_version); | |
459 | } | |
460 | ||
064af421 | 461 | int |
abe529af | 462 | ofproto_create(const char *datapath_name, const char *datapath_type, |
064af421 | 463 | struct ofproto **ofprotop) |
25010c68 | 464 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 465 | { |
abe529af BP |
466 | const struct ofproto_class *class; |
467 | struct ofproto *ofproto; | |
064af421 | 468 | int error; |
c2f0373a | 469 | int i; |
064af421 BP |
470 | |
471 | *ofprotop = NULL; | |
472 | ||
abe529af BP |
473 | datapath_type = ofproto_normalize_type(datapath_type); |
474 | class = ofproto_class_find__(datapath_type); | |
475 | if (!class) { | |
476 | VLOG_WARN("could not create datapath %s of unknown type %s", | |
477 | datapath_name, datapath_type); | |
478 | return EAFNOSUPPORT; | |
064af421 BP |
479 | } |
480 | ||
abe529af BP |
481 | ofproto = class->alloc(); |
482 | if (!ofproto) { | |
483 | VLOG_ERR("failed to allocate datapath %s of type %s", | |
484 | datapath_name, datapath_type); | |
485 | return ENOMEM; | |
486 | } | |
487 | ||
488 | /* Initialize. */ | |
abe7b10f | 489 | ovs_mutex_lock(&ofproto_mutex); |
abe529af BP |
490 | memset(ofproto, 0, sizeof *ofproto); |
491 | ofproto->ofproto_class = class; | |
492 | ofproto->name = xstrdup(datapath_name); | |
493 | ofproto->type = xstrdup(datapath_type); | |
494 | hmap_insert(&all_ofprotos, &ofproto->hmap_node, | |
495 | hash_string(ofproto->name, 0)); | |
496 | ofproto->datapath_id = 0; | |
8402c74b | 497 | ofproto->forward_bpdu = false; |
abe529af | 498 | ofproto->fallback_dpid = pick_fallback_dpid(); |
061bfea4 BP |
499 | ofproto->mfr_desc = NULL; |
500 | ofproto->hw_desc = NULL; | |
501 | ofproto->sw_desc = NULL; | |
502 | ofproto->serial_desc = NULL; | |
503 | ofproto->dp_desc = NULL; | |
ad99e2ed | 504 | ofproto->frag_handling = OFPUTIL_FRAG_NORMAL; |
abe529af | 505 | hmap_init(&ofproto->ports); |
fdcea803 | 506 | hmap_init(&ofproto->ofport_usage); |
abe529af | 507 | shash_init(&ofproto->port_by_name); |
e1b1d06a | 508 | simap_init(&ofproto->ofp_requests); |
430dbb14 | 509 | ofproto->max_ports = ofp_to_u16(OFPP_MAX); |
448c2fa8 | 510 | ofproto->eviction_group_timer = LLONG_MIN; |
6c1491fb BP |
511 | ofproto->tables = NULL; |
512 | ofproto->n_tables = 0; | |
44e0c35d | 513 | ofproto->tables_version = OVS_VERSION_MIN; |
98eaac36 | 514 | hindex_init(&ofproto->cookies); |
35f48b8b | 515 | hmap_init(&ofproto->learned_cookies); |
417e7e66 | 516 | ovs_list_init(&ofproto->expirable); |
abe529af | 517 | ofproto->connmgr = connmgr_create(ofproto, datapath_name, datapath_name); |
7478b5a2 | 518 | ofproto->min_mtu = INT_MAX; |
db88b35c | 519 | cmap_init(&ofproto->groups); |
abe7b10f | 520 | ovs_mutex_unlock(&ofproto_mutex); |
0ae01c64 | 521 | ofproto->ogf.types = 0xf; |
7cb279c2 SH |
522 | ofproto->ogf.capabilities = OFPGFC_CHAINING | OFPGFC_SELECT_LIVENESS | |
523 | OFPGFC_SELECT_WEIGHT; | |
08d1e234 BP |
524 | for (i = 0; i < 4; i++) { |
525 | ofproto->ogf.max_groups[i] = OFPG_MAX; | |
526 | ofproto->ogf.ofpacts[i] = (UINT64_C(1) << N_OFPACTS) - 1; | |
527 | } | |
9558d2a5 | 528 | tun_metadata_init(); |
abe529af | 529 | |
0f5f95a9 | 530 | error = ofproto->ofproto_class->construct(ofproto); |
19a87e36 | 531 | if (error) { |
abe529af | 532 | VLOG_ERR("failed to open datapath %s: %s", |
10a89ef0 | 533 | datapath_name, ovs_strerror(error)); |
25010c68 | 534 | ovs_mutex_lock(&ofproto_mutex); |
58f19539 | 535 | connmgr_destroy(ofproto->connmgr); |
25010c68 JR |
536 | ofproto->connmgr = NULL; |
537 | ovs_mutex_unlock(&ofproto_mutex); | |
abe529af | 538 | ofproto_destroy__(ofproto); |
19a87e36 BP |
539 | return error; |
540 | } | |
073e2a6f | 541 | |
c2f0373a | 542 | /* Check that hidden tables, if any, are at the end. */ |
cb22974d | 543 | ovs_assert(ofproto->n_tables); |
c2f0373a BP |
544 | for (i = 0; i + 1 < ofproto->n_tables; i++) { |
545 | enum oftable_flags flags = ofproto->tables[i].flags; | |
546 | enum oftable_flags next_flags = ofproto->tables[i + 1].flags; | |
547 | ||
cb22974d | 548 | ovs_assert(!(flags & OFTABLE_HIDDEN) || next_flags & OFTABLE_HIDDEN); |
c2f0373a | 549 | } |
19a87e36 | 550 | |
abe529af | 551 | ofproto->datapath_id = pick_datapath_id(ofproto); |
abe529af | 552 | init_ports(ofproto); |
7aa697dd | 553 | |
9cae45dc JR |
554 | /* Initialize meters table. */ |
555 | if (ofproto->ofproto_class->meter_get_features) { | |
556 | ofproto->ofproto_class->meter_get_features(ofproto, | |
557 | &ofproto->meter_features); | |
558 | } else { | |
559 | memset(&ofproto->meter_features, 0, sizeof ofproto->meter_features); | |
560 | } | |
561 | ofproto->meters = xzalloc((ofproto->meter_features.max_meters + 1) | |
562 | * sizeof(struct meter *)); | |
563 | ||
621b8064 | 564 | /* Set the initial tables version. */ |
39c94593 | 565 | ofproto_bump_tables_version(ofproto); |
621b8064 | 566 | |
abe529af | 567 | *ofprotop = ofproto; |
064af421 BP |
568 | return 0; |
569 | } | |
570 | ||
91858960 BP |
571 | /* Must be called (only) by an ofproto implementation in its constructor |
572 | * function. See the large comment on 'construct' in struct ofproto_class for | |
573 | * details. */ | |
0f5f95a9 BP |
574 | void |
575 | ofproto_init_tables(struct ofproto *ofproto, int n_tables) | |
576 | { | |
577 | struct oftable *table; | |
578 | ||
cb22974d BP |
579 | ovs_assert(!ofproto->n_tables); |
580 | ovs_assert(n_tables >= 1 && n_tables <= 255); | |
0f5f95a9 BP |
581 | |
582 | ofproto->n_tables = n_tables; | |
583 | ofproto->tables = xmalloc(n_tables * sizeof *ofproto->tables); | |
584 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { | |
585 | oftable_init(table); | |
586 | } | |
587 | } | |
588 | ||
91858960 BP |
589 | /* To be optionally called (only) by an ofproto implementation in its |
590 | * constructor function. See the large comment on 'construct' in struct | |
591 | * ofproto_class for details. | |
592 | * | |
593 | * Sets the maximum number of ports to 'max_ports'. The ofproto generic layer | |
594 | * will then ensure that actions passed into the ofproto implementation will | |
595 | * not refer to OpenFlow ports numbered 'max_ports' or higher. If this | |
596 | * function is not called, there will be no such restriction. | |
597 | * | |
598 | * Reserved ports numbered OFPP_MAX and higher are special and not subject to | |
599 | * the 'max_ports' restriction. */ | |
600 | void | |
430dbb14 | 601 | ofproto_init_max_ports(struct ofproto *ofproto, uint16_t max_ports) |
91858960 | 602 | { |
430dbb14 | 603 | ovs_assert(max_ports <= ofp_to_u16(OFPP_MAX)); |
91858960 BP |
604 | ofproto->max_ports = max_ports; |
605 | } | |
606 | ||
e825ace2 BP |
607 | uint64_t |
608 | ofproto_get_datapath_id(const struct ofproto *ofproto) | |
609 | { | |
610 | return ofproto->datapath_id; | |
611 | } | |
612 | ||
064af421 BP |
613 | void |
614 | ofproto_set_datapath_id(struct ofproto *p, uint64_t datapath_id) | |
615 | { | |
616 | uint64_t old_dpid = p->datapath_id; | |
fa60c019 | 617 | p->datapath_id = datapath_id ? datapath_id : pick_datapath_id(p); |
064af421 | 618 | if (p->datapath_id != old_dpid) { |
76ce9432 BP |
619 | /* Force all active connections to reconnect, since there is no way to |
620 | * notify a controller that the datapath ID has changed. */ | |
fa05809b | 621 | ofproto_reconnect_controllers(p); |
064af421 BP |
622 | } |
623 | } | |
624 | ||
76ce9432 BP |
625 | void |
626 | ofproto_set_controllers(struct ofproto *p, | |
627 | const struct ofproto_controller *controllers, | |
1d9ffc17 | 628 | size_t n_controllers, uint32_t allowed_versions) |
76ce9432 | 629 | { |
1d9ffc17 SH |
630 | connmgr_set_controllers(p->connmgr, controllers, n_controllers, |
631 | allowed_versions); | |
064af421 BP |
632 | } |
633 | ||
31681a5d JP |
634 | void |
635 | ofproto_set_fail_mode(struct ofproto *p, enum ofproto_fail_mode fail_mode) | |
636 | { | |
19a87e36 | 637 | connmgr_set_fail_mode(p->connmgr, fail_mode); |
31681a5d JP |
638 | } |
639 | ||
fa05809b BP |
640 | /* Drops the connections between 'ofproto' and all of its controllers, forcing |
641 | * them to reconnect. */ | |
642 | void | |
643 | ofproto_reconnect_controllers(struct ofproto *ofproto) | |
644 | { | |
19a87e36 | 645 | connmgr_reconnect(ofproto->connmgr); |
917e50e1 BP |
646 | } |
647 | ||
648 | /* Sets the 'n' TCP port addresses in 'extras' as ones to which 'ofproto''s | |
649 | * in-band control should guarantee access, in the same way that in-band | |
650 | * control guarantees access to OpenFlow controllers. */ | |
651 | void | |
652 | ofproto_set_extra_in_band_remotes(struct ofproto *ofproto, | |
653 | const struct sockaddr_in *extras, size_t n) | |
654 | { | |
19a87e36 | 655 | connmgr_set_extra_in_band_remotes(ofproto->connmgr, extras, n); |
917e50e1 BP |
656 | } |
657 | ||
b1da6250 BP |
658 | /* Sets the OpenFlow queue used by flows set up by in-band control on |
659 | * 'ofproto' to 'queue_id'. If 'queue_id' is negative, then in-band control | |
660 | * flows will use the default queue. */ | |
661 | void | |
662 | ofproto_set_in_band_queue(struct ofproto *ofproto, int queue_id) | |
663 | { | |
19a87e36 | 664 | connmgr_set_in_band_queue(ofproto->connmgr, queue_id); |
b1da6250 BP |
665 | } |
666 | ||
084f5290 SH |
667 | /* Sets the number of flows at which eviction from the kernel flow table |
668 | * will occur. */ | |
669 | void | |
e79a6c83 | 670 | ofproto_set_flow_limit(unsigned limit) |
084f5290 | 671 | { |
e79a6c83 | 672 | ofproto_flow_limit = limit; |
084f5290 SH |
673 | } |
674 | ||
72310b04 JS |
675 | /* Sets the maximum idle time for flows in the datapath before they are |
676 | * expired. */ | |
677 | void | |
678 | ofproto_set_max_idle(unsigned max_idle) | |
679 | { | |
680 | ofproto_max_idle = max_idle; | |
681 | } | |
682 | ||
b53055f4 | 683 | /* If forward_bpdu is true, the NORMAL action will forward frames with |
8402c74b SS |
684 | * reserved (e.g. STP) destination Ethernet addresses. if forward_bpdu is false, |
685 | * the NORMAL action will drop these frames. */ | |
686 | void | |
687 | ofproto_set_forward_bpdu(struct ofproto *ofproto, bool forward_bpdu) | |
688 | { | |
689 | bool old_val = ofproto->forward_bpdu; | |
690 | ofproto->forward_bpdu = forward_bpdu; | |
691 | if (old_val != ofproto->forward_bpdu) { | |
692 | if (ofproto->ofproto_class->forward_bpdu_changed) { | |
693 | ofproto->ofproto_class->forward_bpdu_changed(ofproto); | |
694 | } | |
b53055f4 | 695 | } |
8402c74b SS |
696 | } |
697 | ||
e764773c | 698 | /* Sets the MAC aging timeout for the OFPP_NORMAL action on 'ofproto' to |
c4069512 BP |
699 | * 'idle_time', in seconds, and the maximum number of MAC table entries to |
700 | * 'max_entries'. */ | |
e764773c | 701 | void |
c4069512 BP |
702 | ofproto_set_mac_table_config(struct ofproto *ofproto, unsigned idle_time, |
703 | size_t max_entries) | |
e764773c | 704 | { |
c4069512 BP |
705 | if (ofproto->ofproto_class->set_mac_table_config) { |
706 | ofproto->ofproto_class->set_mac_table_config(ofproto, idle_time, | |
707 | max_entries); | |
e764773c BP |
708 | } |
709 | } | |
710 | ||
7c38d0a5 FL |
711 | /* Multicast snooping configuration. */ |
712 | ||
713 | /* Configures multicast snooping on 'ofproto' using the settings | |
714 | * defined in 's'. If 's' is NULL, disables multicast snooping. | |
715 | * | |
716 | * Returns 0 if successful, otherwise a positive errno value. */ | |
717 | int | |
718 | ofproto_set_mcast_snooping(struct ofproto *ofproto, | |
719 | const struct ofproto_mcast_snooping_settings *s) | |
720 | { | |
721 | return (ofproto->ofproto_class->set_mcast_snooping | |
722 | ? ofproto->ofproto_class->set_mcast_snooping(ofproto, s) | |
723 | : EOPNOTSUPP); | |
724 | } | |
725 | ||
8e04a33f | 726 | /* Configures multicast snooping flood settings on 'ofp_port' of 'ofproto'. |
7c38d0a5 FL |
727 | * |
728 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
729 | int | |
8e04a33f FL |
730 | ofproto_port_set_mcast_snooping(struct ofproto *ofproto, void *aux, |
731 | const struct ofproto_mcast_snooping_port_settings *s) | |
7c38d0a5 FL |
732 | { |
733 | return (ofproto->ofproto_class->set_mcast_snooping_port | |
8e04a33f | 734 | ? ofproto->ofproto_class->set_mcast_snooping_port(ofproto, aux, s) |
7c38d0a5 FL |
735 | : EOPNOTSUPP); |
736 | } | |
737 | ||
f2eee189 AW |
738 | void |
739 | ofproto_set_cpu_mask(const char *cmask) | |
740 | { | |
741 | free(pmd_cpu_mask); | |
2225c0b9 | 742 | pmd_cpu_mask = nullable_xstrdup(cmask); |
f2eee189 AW |
743 | } |
744 | ||
448a4b2f | 745 | void |
30ea0da7 | 746 | ofproto_set_threads(int n_handlers_, int n_revalidators_) |
448a4b2f | 747 | { |
e79a6c83 EJ |
748 | int threads = MAX(count_cpu_cores(), 2); |
749 | ||
30ea0da7 GS |
750 | n_revalidators = MAX(n_revalidators_, 0); |
751 | n_handlers = MAX(n_handlers_, 0); | |
e79a6c83 EJ |
752 | |
753 | if (!n_revalidators) { | |
754 | n_revalidators = n_handlers | |
755 | ? MAX(threads - (int) n_handlers, 1) | |
756 | : threads / 4 + 1; | |
757 | } | |
758 | ||
759 | if (!n_handlers) { | |
760 | n_handlers = MAX(threads - (int) n_revalidators, 1); | |
761 | } | |
448a4b2f AW |
762 | } |
763 | ||
8b6ff729 BP |
764 | void |
765 | ofproto_set_dp_desc(struct ofproto *p, const char *dp_desc) | |
766 | { | |
767 | free(p->dp_desc); | |
2225c0b9 | 768 | p->dp_desc = nullable_xstrdup(dp_desc); |
8b6ff729 BP |
769 | } |
770 | ||
064af421 | 771 | int |
81e2083f | 772 | ofproto_set_snoops(struct ofproto *ofproto, const struct sset *snoops) |
064af421 | 773 | { |
19a87e36 | 774 | return connmgr_set_snoops(ofproto->connmgr, snoops); |
064af421 BP |
775 | } |
776 | ||
777 | int | |
0193b2af JG |
778 | ofproto_set_netflow(struct ofproto *ofproto, |
779 | const struct netflow_options *nf_options) | |
064af421 | 780 | { |
abe529af BP |
781 | if (nf_options && sset_is_empty(&nf_options->collectors)) { |
782 | nf_options = NULL; | |
783 | } | |
784 | ||
785 | if (ofproto->ofproto_class->set_netflow) { | |
786 | return ofproto->ofproto_class->set_netflow(ofproto, nf_options); | |
064af421 | 787 | } else { |
abe529af | 788 | return nf_options ? EOPNOTSUPP : 0; |
064af421 BP |
789 | } |
790 | } | |
791 | ||
abe529af | 792 | int |
72b06300 BP |
793 | ofproto_set_sflow(struct ofproto *ofproto, |
794 | const struct ofproto_sflow_options *oso) | |
795 | { | |
abe529af BP |
796 | if (oso && sset_is_empty(&oso->targets)) { |
797 | oso = NULL; | |
798 | } | |
72b06300 | 799 | |
abe529af BP |
800 | if (ofproto->ofproto_class->set_sflow) { |
801 | return ofproto->ofproto_class->set_sflow(ofproto, oso); | |
72b06300 | 802 | } else { |
abe529af | 803 | return oso ? EOPNOTSUPP : 0; |
72b06300 BP |
804 | } |
805 | } | |
29089a54 RL |
806 | |
807 | int | |
808 | ofproto_set_ipfix(struct ofproto *ofproto, | |
809 | const struct ofproto_ipfix_bridge_exporter_options *bo, | |
810 | const struct ofproto_ipfix_flow_exporter_options *fo, | |
811 | size_t n_fo) | |
812 | { | |
813 | if (ofproto->ofproto_class->set_ipfix) { | |
814 | return ofproto->ofproto_class->set_ipfix(ofproto, bo, fo, n_fo); | |
815 | } else { | |
816 | return (bo || fo) ? EOPNOTSUPP : 0; | |
817 | } | |
818 | } | |
40358701 | 819 | |
fb8f22c1 BY |
820 | static int |
821 | ofproto_get_ipfix_stats(struct ofproto *ofproto, | |
822 | bool bridge_ipfix, | |
823 | struct ovs_list *replies) | |
824 | { | |
825 | int error; | |
826 | ||
827 | if (ofproto->ofproto_class->get_ipfix_stats) { | |
828 | error = ofproto->ofproto_class->get_ipfix_stats(ofproto, | |
829 | bridge_ipfix, | |
830 | replies); | |
831 | } else { | |
832 | error = EOPNOTSUPP; | |
833 | } | |
834 | ||
835 | return error; | |
836 | } | |
837 | ||
838 | static enum ofperr | |
839 | handle_ipfix_bridge_stats_request(struct ofconn *ofconn, | |
840 | const struct ofp_header *request) | |
841 | { | |
842 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
843 | struct ovs_list replies; | |
844 | enum ofperr error; | |
845 | ||
846 | ofpmp_init(&replies, request); | |
847 | error = ofproto_get_ipfix_stats(ofproto, true, &replies); | |
848 | ||
849 | if (!error) { | |
850 | ofconn_send_replies(ofconn, &replies); | |
851 | } else { | |
852 | ofpbuf_list_delete(&replies); | |
853 | } | |
854 | ||
855 | return error; | |
856 | } | |
857 | ||
858 | static enum ofperr | |
859 | handle_ipfix_flow_stats_request(struct ofconn *ofconn, | |
860 | const struct ofp_header *request) | |
861 | { | |
862 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
863 | struct ovs_list replies; | |
864 | enum ofperr error; | |
865 | ||
866 | ofpmp_init(&replies, request); | |
867 | error = ofproto_get_ipfix_stats(ofproto, false, &replies); | |
868 | ||
869 | if (!error) { | |
870 | ofconn_send_replies(ofconn, &replies); | |
871 | } else { | |
872 | ofpbuf_list_delete(&replies); | |
873 | } | |
874 | ||
875 | return error; | |
876 | } | |
877 | ||
40358701 GS |
878 | void |
879 | ofproto_set_flow_restore_wait(bool flow_restore_wait_db) | |
880 | { | |
881 | flow_restore_wait = flow_restore_wait_db; | |
882 | } | |
883 | ||
884 | bool | |
885 | ofproto_get_flow_restore_wait(void) | |
886 | { | |
887 | return flow_restore_wait; | |
888 | } | |
889 | ||
e7934396 | 890 | \f |
21f7563c JP |
891 | /* Spanning Tree Protocol (STP) configuration. */ |
892 | ||
893 | /* Configures STP on 'ofproto' using the settings defined in 's'. If | |
894 | * 's' is NULL, disables STP. | |
895 | * | |
896 | * Returns 0 if successful, otherwise a positive errno value. */ | |
897 | int | |
898 | ofproto_set_stp(struct ofproto *ofproto, | |
899 | const struct ofproto_stp_settings *s) | |
900 | { | |
901 | return (ofproto->ofproto_class->set_stp | |
902 | ? ofproto->ofproto_class->set_stp(ofproto, s) | |
903 | : EOPNOTSUPP); | |
904 | } | |
905 | ||
906 | /* Retrieves STP status of 'ofproto' and stores it in 's'. If the | |
907 | * 'enabled' member of 's' is false, then the other members are not | |
908 | * meaningful. | |
909 | * | |
910 | * Returns 0 if successful, otherwise a positive errno value. */ | |
911 | int | |
912 | ofproto_get_stp_status(struct ofproto *ofproto, | |
913 | struct ofproto_stp_status *s) | |
914 | { | |
915 | return (ofproto->ofproto_class->get_stp_status | |
916 | ? ofproto->ofproto_class->get_stp_status(ofproto, s) | |
917 | : EOPNOTSUPP); | |
918 | } | |
919 | ||
920 | /* Configures STP on 'ofp_port' of 'ofproto' using the settings defined | |
921 | * in 's'. The caller is responsible for assigning STP port numbers | |
922 | * (using the 'port_num' member in the range of 1 through 255, inclusive) | |
923 | * and ensuring there are no duplicates. If the 's' is NULL, then STP | |
924 | * is disabled on the port. | |
925 | * | |
926 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
927 | int | |
4e022ec0 | 928 | ofproto_port_set_stp(struct ofproto *ofproto, ofp_port_t ofp_port, |
21f7563c JP |
929 | const struct ofproto_port_stp_settings *s) |
930 | { | |
931 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
932 | if (!ofport) { | |
933 | VLOG_WARN("%s: cannot configure STP on nonexistent port %"PRIu16, | |
934 | ofproto->name, ofp_port); | |
935 | return ENODEV; | |
936 | } | |
937 | ||
938 | return (ofproto->ofproto_class->set_stp_port | |
939 | ? ofproto->ofproto_class->set_stp_port(ofport, s) | |
940 | : EOPNOTSUPP); | |
941 | } | |
942 | ||
943 | /* Retrieves STP port status of 'ofp_port' on 'ofproto' and stores it in | |
944 | * 's'. If the 'enabled' member in 's' is false, then the other members | |
945 | * are not meaningful. | |
946 | * | |
947 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
948 | int | |
4e022ec0 | 949 | ofproto_port_get_stp_status(struct ofproto *ofproto, ofp_port_t ofp_port, |
21f7563c JP |
950 | struct ofproto_port_stp_status *s) |
951 | { | |
952 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
953 | if (!ofport) { | |
b0a5c43b JP |
954 | VLOG_WARN_RL(&rl, "%s: cannot get STP status on nonexistent " |
955 | "port %"PRIu16, ofproto->name, ofp_port); | |
21f7563c JP |
956 | return ENODEV; |
957 | } | |
958 | ||
959 | return (ofproto->ofproto_class->get_stp_port_status | |
960 | ? ofproto->ofproto_class->get_stp_port_status(ofport, s) | |
961 | : EOPNOTSUPP); | |
962 | } | |
fd28ce3a JS |
963 | |
964 | /* Retrieves STP port statistics of 'ofp_port' on 'ofproto' and stores it in | |
965 | * 's'. If the 'enabled' member in 's' is false, then the other members | |
966 | * are not meaningful. | |
967 | * | |
968 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
969 | int | |
970 | ofproto_port_get_stp_stats(struct ofproto *ofproto, ofp_port_t ofp_port, | |
971 | struct ofproto_port_stp_stats *s) | |
972 | { | |
973 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
974 | if (!ofport) { | |
975 | VLOG_WARN_RL(&rl, "%s: cannot get STP stats on nonexistent " | |
976 | "port %"PRIu16, ofproto->name, ofp_port); | |
977 | return ENODEV; | |
978 | } | |
979 | ||
980 | return (ofproto->ofproto_class->get_stp_port_stats | |
981 | ? ofproto->ofproto_class->get_stp_port_stats(ofport, s) | |
982 | : EOPNOTSUPP); | |
983 | } | |
9efd308e DV |
984 | |
985 | /* Rapid Spanning Tree Protocol (RSTP) configuration. */ | |
986 | ||
987 | /* Configures RSTP on 'ofproto' using the settings defined in 's'. If | |
988 | * 's' is NULL, disables RSTP. | |
989 | * | |
990 | * Returns 0 if successful, otherwise a positive errno value. */ | |
991 | int | |
992 | ofproto_set_rstp(struct ofproto *ofproto, | |
993 | const struct ofproto_rstp_settings *s) | |
994 | { | |
995 | if (!ofproto->ofproto_class->set_rstp) { | |
996 | return EOPNOTSUPP; | |
997 | } | |
998 | ofproto->ofproto_class->set_rstp(ofproto, s); | |
999 | return 0; | |
1000 | } | |
1001 | ||
1002 | /* Retrieves RSTP status of 'ofproto' and stores it in 's'. If the | |
1003 | * 'enabled' member of 's' is false, then the other members are not | |
1004 | * meaningful. | |
1005 | * | |
1006 | * Returns 0 if successful, otherwise a positive errno value. */ | |
1007 | int | |
1008 | ofproto_get_rstp_status(struct ofproto *ofproto, | |
1009 | struct ofproto_rstp_status *s) | |
1010 | { | |
1011 | if (!ofproto->ofproto_class->get_rstp_status) { | |
1012 | return EOPNOTSUPP; | |
1013 | } | |
1014 | ofproto->ofproto_class->get_rstp_status(ofproto, s); | |
1015 | return 0; | |
1016 | } | |
1017 | ||
1018 | /* Configures RSTP on 'ofp_port' of 'ofproto' using the settings defined | |
1019 | * in 's'. The caller is responsible for assigning RSTP port numbers | |
1020 | * (using the 'port_num' member in the range of 1 through 255, inclusive) | |
1021 | * and ensuring there are no duplicates. If the 's' is NULL, then RSTP | |
1022 | * is disabled on the port. | |
1023 | * | |
1024 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
1025 | int | |
1026 | ofproto_port_set_rstp(struct ofproto *ofproto, ofp_port_t ofp_port, | |
1027 | const struct ofproto_port_rstp_settings *s) | |
1028 | { | |
1029 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1030 | if (!ofport) { | |
1031 | VLOG_WARN("%s: cannot configure RSTP on nonexistent port %"PRIu16, | |
1032 | ofproto->name, ofp_port); | |
1033 | return ENODEV; | |
1034 | } | |
1035 | ||
1036 | if (!ofproto->ofproto_class->set_rstp_port) { | |
1037 | return EOPNOTSUPP; | |
1038 | } | |
1039 | ofproto->ofproto_class->set_rstp_port(ofport, s); | |
1040 | return 0; | |
1041 | } | |
1042 | ||
1043 | /* Retrieves RSTP port status of 'ofp_port' on 'ofproto' and stores it in | |
1044 | * 's'. If the 'enabled' member in 's' is false, then the other members | |
1045 | * are not meaningful. | |
1046 | * | |
1047 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
1048 | int | |
1049 | ofproto_port_get_rstp_status(struct ofproto *ofproto, ofp_port_t ofp_port, | |
1050 | struct ofproto_port_rstp_status *s) | |
1051 | { | |
1052 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1053 | if (!ofport) { | |
1054 | VLOG_WARN_RL(&rl, "%s: cannot get RSTP status on nonexistent " | |
1055 | "port %"PRIu16, ofproto->name, ofp_port); | |
1056 | return ENODEV; | |
1057 | } | |
1058 | ||
1059 | if (!ofproto->ofproto_class->get_rstp_port_status) { | |
1060 | return EOPNOTSUPP; | |
1061 | } | |
1062 | ofproto->ofproto_class->get_rstp_port_status(ofport, s); | |
1063 | return 0; | |
1064 | } | |
21f7563c | 1065 | \f |
8b36f51e EJ |
1066 | /* Queue DSCP configuration. */ |
1067 | ||
1068 | /* Registers meta-data associated with the 'n_qdscp' Qualities of Service | |
1069 | * 'queues' attached to 'ofport'. This data is not intended to be sufficient | |
1070 | * to implement QoS. Instead, it is used to implement features which require | |
1071 | * knowledge of what queues exist on a port, and some basic information about | |
1072 | * them. | |
1073 | * | |
1074 | * Returns 0 if successful, otherwise a positive errno value. */ | |
1075 | int | |
4e022ec0 | 1076 | ofproto_port_set_queues(struct ofproto *ofproto, ofp_port_t ofp_port, |
8b36f51e EJ |
1077 | const struct ofproto_port_queue *queues, |
1078 | size_t n_queues) | |
1079 | { | |
1080 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1081 | ||
1082 | if (!ofport) { | |
1083 | VLOG_WARN("%s: cannot set queues on nonexistent port %"PRIu16, | |
1084 | ofproto->name, ofp_port); | |
1085 | return ENODEV; | |
1086 | } | |
1087 | ||
1088 | return (ofproto->ofproto_class->set_queues | |
1089 | ? ofproto->ofproto_class->set_queues(ofport, queues, n_queues) | |
1090 | : EOPNOTSUPP); | |
1091 | } | |
1092 | \f | |
0477baa9 DF |
1093 | /* LLDP configuration. */ |
1094 | void | |
1095 | ofproto_port_set_lldp(struct ofproto *ofproto, | |
1096 | ofp_port_t ofp_port, | |
1097 | const struct smap *cfg) | |
1098 | { | |
1099 | struct ofport *ofport; | |
1100 | int error; | |
1101 | ||
1102 | ofport = ofproto_get_port(ofproto, ofp_port); | |
1103 | if (!ofport) { | |
1104 | VLOG_WARN("%s: cannot configure LLDP on nonexistent port %"PRIu16, | |
1105 | ofproto->name, ofp_port); | |
1106 | return; | |
1107 | } | |
1108 | error = (ofproto->ofproto_class->set_lldp | |
1109 | ? ofproto->ofproto_class->set_lldp(ofport, cfg) | |
1110 | : EOPNOTSUPP); | |
1111 | if (error) { | |
1112 | VLOG_WARN("%s: lldp configuration on port %"PRIu16" (%s) failed (%s)", | |
1113 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), | |
1114 | ovs_strerror(error)); | |
1115 | } | |
1116 | } | |
1117 | ||
1118 | int | |
1119 | ofproto_set_aa(struct ofproto *ofproto, void *aux OVS_UNUSED, | |
1120 | const struct aa_settings *s) | |
1121 | { | |
1122 | if (!ofproto->ofproto_class->set_aa) { | |
1123 | return EOPNOTSUPP; | |
1124 | } | |
1125 | ofproto->ofproto_class->set_aa(ofproto, s); | |
1126 | return 0; | |
1127 | } | |
1128 | ||
1129 | int | |
1130 | ofproto_aa_mapping_register(struct ofproto *ofproto, void *aux, | |
1131 | const struct aa_mapping_settings *s) | |
1132 | { | |
1133 | if (!ofproto->ofproto_class->aa_mapping_set) { | |
1134 | return EOPNOTSUPP; | |
1135 | } | |
1136 | ofproto->ofproto_class->aa_mapping_set(ofproto, aux, s); | |
1137 | return 0; | |
1138 | } | |
1139 | ||
1140 | int | |
1141 | ofproto_aa_mapping_unregister(struct ofproto *ofproto, void *aux) | |
1142 | { | |
1143 | if (!ofproto->ofproto_class->aa_mapping_unset) { | |
1144 | return EOPNOTSUPP; | |
1145 | } | |
1146 | ofproto->ofproto_class->aa_mapping_unset(ofproto, aux); | |
1147 | return 0; | |
1148 | } | |
1149 | ||
1150 | int | |
1151 | ofproto_aa_vlan_get_queued(struct ofproto *ofproto, | |
1152 | struct ovs_list *list) | |
1153 | { | |
1154 | if (!ofproto->ofproto_class->aa_vlan_get_queued) { | |
1155 | return EOPNOTSUPP; | |
1156 | } | |
1157 | ofproto->ofproto_class->aa_vlan_get_queued(ofproto, list); | |
1158 | return 0; | |
1159 | } | |
1160 | ||
1161 | unsigned int | |
1162 | ofproto_aa_vlan_get_queue_size(struct ofproto *ofproto) | |
1163 | { | |
1164 | if (!ofproto->ofproto_class->aa_vlan_get_queue_size) { | |
1165 | return EOPNOTSUPP; | |
1166 | } | |
1167 | return ofproto->ofproto_class->aa_vlan_get_queue_size(ofproto); | |
1168 | } | |
1169 | ||
e7934396 BP |
1170 | /* Connectivity Fault Management configuration. */ |
1171 | ||
892815f5 | 1172 | /* Clears the CFM configuration from 'ofp_port' on 'ofproto'. */ |
e7934396 | 1173 | void |
4e022ec0 | 1174 | ofproto_port_clear_cfm(struct ofproto *ofproto, ofp_port_t ofp_port) |
e7934396 | 1175 | { |
abe529af BP |
1176 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1177 | if (ofport && ofproto->ofproto_class->set_cfm) { | |
a5610457 | 1178 | ofproto->ofproto_class->set_cfm(ofport, NULL); |
e7934396 BP |
1179 | } |
1180 | } | |
72b06300 | 1181 | |
892815f5 | 1182 | /* Configures connectivity fault management on 'ofp_port' in 'ofproto'. Takes |
93b8df38 EJ |
1183 | * basic configuration from the configuration members in 'cfm', and the remote |
1184 | * maintenance point ID from remote_mpid. Ignores the statistics members of | |
1185 | * 'cfm'. | |
e7934396 | 1186 | * |
892815f5 | 1187 | * This function has no effect if 'ofproto' does not have a port 'ofp_port'. */ |
e7934396 | 1188 | void |
4e022ec0 | 1189 | ofproto_port_set_cfm(struct ofproto *ofproto, ofp_port_t ofp_port, |
a5610457 | 1190 | const struct cfm_settings *s) |
e7934396 BP |
1191 | { |
1192 | struct ofport *ofport; | |
abe529af | 1193 | int error; |
e7934396 | 1194 | |
abe529af | 1195 | ofport = ofproto_get_port(ofproto, ofp_port); |
e7934396 | 1196 | if (!ofport) { |
892815f5 BP |
1197 | VLOG_WARN("%s: cannot configure CFM on nonexistent port %"PRIu16, |
1198 | ofproto->name, ofp_port); | |
e7934396 BP |
1199 | return; |
1200 | } | |
1201 | ||
93b8df38 EJ |
1202 | /* XXX: For configuration simplicity, we only support one remote_mpid |
1203 | * outside of the CFM module. It's not clear if this is the correct long | |
1204 | * term solution or not. */ | |
abe529af | 1205 | error = (ofproto->ofproto_class->set_cfm |
a5610457 | 1206 | ? ofproto->ofproto_class->set_cfm(ofport, s) |
abe529af BP |
1207 | : EOPNOTSUPP); |
1208 | if (error) { | |
1209 | VLOG_WARN("%s: CFM configuration on port %"PRIu16" (%s) failed (%s)", | |
1210 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), | |
10a89ef0 | 1211 | ovs_strerror(error)); |
e7934396 | 1212 | } |
e7934396 | 1213 | } |
e7934396 | 1214 | |
ccc09689 EJ |
1215 | /* Configures BFD on 'ofp_port' in 'ofproto'. This function has no effect if |
1216 | * 'ofproto' does not have a port 'ofp_port'. */ | |
1217 | void | |
4e022ec0 | 1218 | ofproto_port_set_bfd(struct ofproto *ofproto, ofp_port_t ofp_port, |
ccc09689 EJ |
1219 | const struct smap *cfg) |
1220 | { | |
1221 | struct ofport *ofport; | |
1222 | int error; | |
1223 | ||
1224 | ofport = ofproto_get_port(ofproto, ofp_port); | |
1225 | if (!ofport) { | |
1226 | VLOG_WARN("%s: cannot configure bfd on nonexistent port %"PRIu16, | |
1227 | ofproto->name, ofp_port); | |
e8999bdc | 1228 | return; |
ccc09689 EJ |
1229 | } |
1230 | ||
1231 | error = (ofproto->ofproto_class->set_bfd | |
1232 | ? ofproto->ofproto_class->set_bfd(ofport, cfg) | |
1233 | : EOPNOTSUPP); | |
1234 | if (error) { | |
1235 | VLOG_WARN("%s: bfd configuration on port %"PRIu16" (%s) failed (%s)", | |
1236 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), | |
10a89ef0 | 1237 | ovs_strerror(error)); |
ccc09689 EJ |
1238 | } |
1239 | } | |
1240 | ||
8f5514fe AW |
1241 | /* Checks the status change of BFD on 'ofport'. |
1242 | * | |
1243 | * Returns true if 'ofproto_class' does not support 'bfd_status_changed'. */ | |
1244 | bool | |
1245 | ofproto_port_bfd_status_changed(struct ofproto *ofproto, ofp_port_t ofp_port) | |
1246 | { | |
1247 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1248 | return (ofport && ofproto->ofproto_class->bfd_status_changed | |
1249 | ? ofproto->ofproto_class->bfd_status_changed(ofport) | |
1250 | : true); | |
1251 | } | |
1252 | ||
88bf179a | 1253 | /* Populates 'status' with the status of BFD on 'ofport'. Returns 0 on |
8f5514fe AW |
1254 | * success. Returns a positive errno otherwise. Has no effect if 'ofp_port' |
1255 | * is not an OpenFlow port in 'ofproto'. | |
88bf179a AW |
1256 | * |
1257 | * The caller must provide and own '*status'. */ | |
ccc09689 | 1258 | int |
4e022ec0 | 1259 | ofproto_port_get_bfd_status(struct ofproto *ofproto, ofp_port_t ofp_port, |
ccc09689 EJ |
1260 | struct smap *status) |
1261 | { | |
1262 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1263 | return (ofport && ofproto->ofproto_class->get_bfd_status | |
1264 | ? ofproto->ofproto_class->get_bfd_status(ofport, status) | |
1265 | : EOPNOTSUPP); | |
1266 | } | |
1267 | ||
fa066f01 BP |
1268 | /* Checks the status of LACP negotiation for 'ofp_port' within ofproto. |
1269 | * Returns 1 if LACP partner information for 'ofp_port' is up-to-date, | |
1270 | * 0 if LACP partner information is not current (generally indicating a | |
1271 | * connectivity problem), or -1 if LACP is not enabled on 'ofp_port'. */ | |
1272 | int | |
4e022ec0 | 1273 | ofproto_port_is_lacp_current(struct ofproto *ofproto, ofp_port_t ofp_port) |
fa066f01 | 1274 | { |
abe529af BP |
1275 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1276 | return (ofport && ofproto->ofproto_class->port_is_lacp_current | |
1277 | ? ofproto->ofproto_class->port_is_lacp_current(ofport) | |
fa066f01 | 1278 | : -1); |
e7934396 | 1279 | } |
50b9699f NM |
1280 | |
1281 | int | |
1282 | ofproto_port_get_lacp_stats(const struct ofport *port, struct lacp_slave_stats *stats) | |
1283 | { | |
1284 | struct ofproto *ofproto = port->ofproto; | |
1285 | int error; | |
1286 | ||
1287 | if (ofproto->ofproto_class->port_get_lacp_stats) { | |
1288 | error = ofproto->ofproto_class->port_get_lacp_stats(port, stats); | |
1289 | } else { | |
1290 | error = EOPNOTSUPP; | |
1291 | } | |
1292 | ||
1293 | return error; | |
1294 | } | |
e7934396 | 1295 | \f |
fa066f01 | 1296 | /* Bundles. */ |
e7934396 | 1297 | |
abe529af BP |
1298 | /* Registers a "bundle" associated with client data pointer 'aux' in 'ofproto'. |
1299 | * A bundle is the same concept as a Port in OVSDB, that is, it consists of one | |
1300 | * or more "slave" devices (Interfaces, in OVSDB) along with a VLAN | |
1301 | * configuration plus, if there is more than one slave, a bonding | |
1302 | * configuration. | |
1303 | * | |
1304 | * If 'aux' is already registered then this function updates its configuration | |
1305 | * to 's'. Otherwise, this function registers a new bundle. | |
1306 | * | |
1307 | * Bundles only affect the NXAST_AUTOPATH action and output to the OFPP_NORMAL | |
1308 | * port. */ | |
1309 | int | |
1310 | ofproto_bundle_register(struct ofproto *ofproto, void *aux, | |
1311 | const struct ofproto_bundle_settings *s) | |
fa066f01 | 1312 | { |
abe529af BP |
1313 | return (ofproto->ofproto_class->bundle_set |
1314 | ? ofproto->ofproto_class->bundle_set(ofproto, aux, s) | |
1315 | : EOPNOTSUPP); | |
fa066f01 BP |
1316 | } |
1317 | ||
abe529af BP |
1318 | /* Unregisters the bundle registered on 'ofproto' with auxiliary data 'aux'. |
1319 | * If no such bundle has been registered, this has no effect. */ | |
1320 | int | |
1321 | ofproto_bundle_unregister(struct ofproto *ofproto, void *aux) | |
e7934396 | 1322 | { |
abe529af | 1323 | return ofproto_bundle_register(ofproto, aux, NULL); |
e7934396 | 1324 | } |
fa066f01 | 1325 | |
e7934396 | 1326 | \f |
abe529af BP |
1327 | /* Registers a mirror associated with client data pointer 'aux' in 'ofproto'. |
1328 | * If 'aux' is already registered then this function updates its configuration | |
c06bba01 | 1329 | * to 's'. Otherwise, this function registers a new mirror. */ |
abe529af BP |
1330 | int |
1331 | ofproto_mirror_register(struct ofproto *ofproto, void *aux, | |
1332 | const struct ofproto_mirror_settings *s) | |
064af421 | 1333 | { |
abe529af BP |
1334 | return (ofproto->ofproto_class->mirror_set |
1335 | ? ofproto->ofproto_class->mirror_set(ofproto, aux, s) | |
1336 | : EOPNOTSUPP); | |
064af421 BP |
1337 | } |
1338 | ||
abe529af BP |
1339 | /* Unregisters the mirror registered on 'ofproto' with auxiliary data 'aux'. |
1340 | * If no mirror has been registered, this has no effect. */ | |
1341 | int | |
1342 | ofproto_mirror_unregister(struct ofproto *ofproto, void *aux) | |
064af421 | 1343 | { |
abe529af | 1344 | return ofproto_mirror_register(ofproto, aux, NULL); |
064af421 BP |
1345 | } |
1346 | ||
9d24de3b JP |
1347 | /* Retrieves statistics from mirror associated with client data pointer |
1348 | * 'aux' in 'ofproto'. Stores packet and byte counts in 'packets' and | |
1349 | * 'bytes', respectively. If a particular counters is not supported, | |
0477baa9 DF |
1350 | * the appropriate argument is set to UINT64_MAX. |
1351 | */ | |
9d24de3b JP |
1352 | int |
1353 | ofproto_mirror_get_stats(struct ofproto *ofproto, void *aux, | |
1354 | uint64_t *packets, uint64_t *bytes) | |
1355 | { | |
1356 | if (!ofproto->ofproto_class->mirror_get_stats) { | |
1357 | *packets = *bytes = UINT64_MAX; | |
1358 | return EOPNOTSUPP; | |
1359 | } | |
1360 | ||
1361 | return ofproto->ofproto_class->mirror_get_stats(ofproto, aux, | |
1362 | packets, bytes); | |
1363 | } | |
1364 | ||
abe529af BP |
1365 | /* Configures the VLANs whose bits are set to 1 in 'flood_vlans' as VLANs on |
1366 | * which all packets are flooded, instead of using MAC learning. If | |
1367 | * 'flood_vlans' is NULL, then MAC learning applies to all VLANs. | |
1368 | * | |
1369 | * Flood VLANs affect only the treatment of packets output to the OFPP_NORMAL | |
1370 | * port. */ | |
1371 | int | |
1372 | ofproto_set_flood_vlans(struct ofproto *ofproto, unsigned long *flood_vlans) | |
abdfe474 | 1373 | { |
abe529af BP |
1374 | return (ofproto->ofproto_class->set_flood_vlans |
1375 | ? ofproto->ofproto_class->set_flood_vlans(ofproto, flood_vlans) | |
1376 | : EOPNOTSUPP); | |
abdfe474 JP |
1377 | } |
1378 | ||
abe529af BP |
1379 | /* Returns true if 'aux' is a registered bundle that is currently in use as the |
1380 | * output for a mirror. */ | |
1381 | bool | |
b4affc74 | 1382 | ofproto_is_mirror_output_bundle(const struct ofproto *ofproto, void *aux) |
abe529af BP |
1383 | { |
1384 | return (ofproto->ofproto_class->is_mirror_output_bundle | |
1385 | ? ofproto->ofproto_class->is_mirror_output_bundle(ofproto, aux) | |
1386 | : false); | |
1387 | } | |
1388 | \f | |
254750ce BP |
1389 | /* Configuration of OpenFlow tables. */ |
1390 | ||
1391 | /* Returns the number of OpenFlow tables in 'ofproto'. */ | |
1392 | int | |
1393 | ofproto_get_n_tables(const struct ofproto *ofproto) | |
1394 | { | |
1395 | return ofproto->n_tables; | |
1396 | } | |
1397 | ||
adcf00ba AZ |
1398 | /* Returns the number of Controller visible OpenFlow tables |
1399 | * in 'ofproto'. This number will exclude Hidden tables. | |
1400 | * This funtion's return value should be less or equal to that of | |
1401 | * ofproto_get_n_tables() . */ | |
1402 | uint8_t | |
1403 | ofproto_get_n_visible_tables(const struct ofproto *ofproto) | |
1404 | { | |
1405 | uint8_t n = ofproto->n_tables; | |
1406 | ||
1407 | /* Count only non-hidden tables in the number of tables. (Hidden tables, | |
1408 | * if present, are always at the end.) */ | |
1409 | while(n && (ofproto->tables[n - 1].flags & OFTABLE_HIDDEN)) { | |
1410 | n--; | |
1411 | } | |
1412 | ||
1413 | return n; | |
1414 | } | |
1415 | ||
254750ce BP |
1416 | /* Configures the OpenFlow table in 'ofproto' with id 'table_id' with the |
1417 | * settings from 's'. 'table_id' must be in the range 0 through the number of | |
1418 | * OpenFlow tables in 'ofproto' minus 1, inclusive. | |
1419 | * | |
1420 | * For read-only tables, only the name may be configured. */ | |
1421 | void | |
1422 | ofproto_configure_table(struct ofproto *ofproto, int table_id, | |
1423 | const struct ofproto_table_settings *s) | |
1424 | { | |
1425 | struct oftable *table; | |
1426 | ||
cb22974d | 1427 | ovs_assert(table_id >= 0 && table_id < ofproto->n_tables); |
254750ce BP |
1428 | table = &ofproto->tables[table_id]; |
1429 | ||
1430 | oftable_set_name(table, s->name); | |
1431 | ||
1432 | if (table->flags & OFTABLE_READONLY) { | |
1433 | return; | |
1434 | } | |
1435 | ||
f358a2cb JR |
1436 | if (classifier_set_prefix_fields(&table->cls, |
1437 | s->prefix_fields, s->n_prefix_fields)) { | |
1438 | /* XXX: Trigger revalidation. */ | |
1439 | } | |
834fe5cb BP |
1440 | |
1441 | ovs_mutex_lock(&ofproto_mutex); | |
82c22d34 BP |
1442 | unsigned int new_eviction = (s->enable_eviction |
1443 | ? table->eviction | EVICTION_CLIENT | |
1444 | : table->eviction & ~EVICTION_CLIENT); | |
1445 | oftable_configure_eviction(table, new_eviction, s->groups, s->n_groups); | |
7394b8fb | 1446 | table->max_flows = s->max_flows; |
6787a49f | 1447 | evict_rules_from_table(table); |
834fe5cb | 1448 | ovs_mutex_unlock(&ofproto_mutex); |
254750ce BP |
1449 | } |
1450 | \f | |
81e2083f BP |
1451 | bool |
1452 | ofproto_has_snoops(const struct ofproto *ofproto) | |
1453 | { | |
1454 | return connmgr_has_snoops(ofproto->connmgr); | |
1455 | } | |
1456 | ||
064af421 | 1457 | void |
81e2083f | 1458 | ofproto_get_snoops(const struct ofproto *ofproto, struct sset *snoops) |
064af421 | 1459 | { |
19a87e36 | 1460 | connmgr_get_snoops(ofproto->connmgr, snoops); |
064af421 BP |
1461 | } |
1462 | ||
a73fcd71 | 1463 | /* Deletes 'rule' from 'ofproto'. |
8037acb4 | 1464 | * |
b74cb5d8 BP |
1465 | * Within an ofproto implementation, this function allows an ofproto |
1466 | * implementation to destroy any rules that remain when its ->destruct() | |
1467 | * function is called. This function is not suitable for use elsewhere in an | |
1468 | * ofproto implementation. | |
1469 | * | |
b74cb5d8 | 1470 | * This function implements steps 4.4 and 4.5 in the section titled "Rule Life |
8b81d1ef | 1471 | * Cycle" in ofproto-provider.h. */ |
b74cb5d8 | 1472 | void |
8b81d1ef | 1473 | ofproto_rule_delete(struct ofproto *ofproto, struct rule *rule) |
15aaf599 | 1474 | OVS_EXCLUDED(ofproto_mutex) |
7ee20df1 | 1475 | { |
834fe5cb BP |
1476 | /* This skips the ofmonitor and flow-removed notifications because the |
1477 | * switch is being deleted and any OpenFlow channels have been or soon will | |
1478 | * be killed. */ | |
15aaf599 | 1479 | ovs_mutex_lock(&ofproto_mutex); |
39c94593 | 1480 | |
30d0452c | 1481 | if (rule->state == RULE_INSERTED) { |
39c94593 | 1482 | /* Make sure there is no postponed removal of the rule. */ |
44e0c35d | 1483 | ovs_assert(cls_rule_visible_in_version(&rule->cr, OVS_VERSION_MAX)); |
39c94593 JR |
1484 | |
1485 | if (!classifier_remove(&rule->ofproto->tables[rule->table_id].cls, | |
1486 | &rule->cr)) { | |
1487 | OVS_NOT_REACHED(); | |
1488 | } | |
1489 | ofproto_rule_remove__(rule->ofproto, rule); | |
1fc71871 JR |
1490 | if (ofproto->ofproto_class->rule_delete) { |
1491 | ofproto->ofproto_class->rule_delete(rule); | |
1492 | } | |
25010c68 JR |
1493 | |
1494 | /* This may not be the last reference to the rule. */ | |
39c94593 JR |
1495 | ofproto_rule_unref(rule); |
1496 | } | |
15aaf599 | 1497 | ovs_mutex_unlock(&ofproto_mutex); |
8037acb4 BP |
1498 | } |
1499 | ||
1500 | static void | |
1501 | ofproto_flush__(struct ofproto *ofproto) | |
15aaf599 | 1502 | OVS_EXCLUDED(ofproto_mutex) |
8037acb4 | 1503 | { |
d0918789 | 1504 | struct oftable *table; |
7ee20df1 | 1505 | |
3948503a | 1506 | /* This will flush all datapath flows. */ |
7ee20df1 BP |
1507 | if (ofproto->ofproto_class->flush) { |
1508 | ofproto->ofproto_class->flush(ofproto); | |
1509 | } | |
1510 | ||
3948503a JR |
1511 | /* XXX: There is a small race window here, where new datapath flows can be |
1512 | * created by upcall handlers based on the existing flow table. We can not | |
1513 | * call ofproto class flush while holding 'ofproto_mutex' to prevent this, | |
1514 | * as then we could deadlock on syncing with the handler threads waiting on | |
1515 | * the same mutex. */ | |
1516 | ||
15aaf599 | 1517 | ovs_mutex_lock(&ofproto_mutex); |
b772ded8 | 1518 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
802f84ff | 1519 | struct rule_collection rules; |
78c8df12 | 1520 | struct rule *rule; |
7ee20df1 | 1521 | |
5c67e4af BP |
1522 | if (table->flags & OFTABLE_HIDDEN) { |
1523 | continue; | |
1524 | } | |
1525 | ||
802f84ff JR |
1526 | rule_collection_init(&rules); |
1527 | ||
de4ad4a2 | 1528 | CLS_FOR_EACH (rule, cr, &table->cls) { |
802f84ff | 1529 | rule_collection_add(&rules, rule); |
7ee20df1 | 1530 | } |
802f84ff | 1531 | delete_flows__(&rules, OFPRR_DELETE, NULL); |
7ee20df1 | 1532 | } |
3948503a JR |
1533 | /* XXX: Concurrent handler threads may insert new learned flows based on |
1534 | * learn actions of the now deleted flows right after we release | |
1535 | * 'ofproto_mutex'. */ | |
15aaf599 | 1536 | ovs_mutex_unlock(&ofproto_mutex); |
7ee20df1 BP |
1537 | } |
1538 | ||
abe529af BP |
1539 | static void |
1540 | ofproto_destroy__(struct ofproto *ofproto) | |
15aaf599 | 1541 | OVS_EXCLUDED(ofproto_mutex) |
abe529af | 1542 | { |
d0918789 | 1543 | struct oftable *table; |
6c1491fb | 1544 | |
db88b35c | 1545 | cmap_destroy(&ofproto->groups); |
7395c052 | 1546 | |
abe529af BP |
1547 | hmap_remove(&all_ofprotos, &ofproto->hmap_node); |
1548 | free(ofproto->name); | |
955a7127 | 1549 | free(ofproto->type); |
abe529af BP |
1550 | free(ofproto->mfr_desc); |
1551 | free(ofproto->hw_desc); | |
1552 | free(ofproto->sw_desc); | |
1553 | free(ofproto->serial_desc); | |
1554 | free(ofproto->dp_desc); | |
abe529af | 1555 | hmap_destroy(&ofproto->ports); |
fdcea803 | 1556 | hmap_destroy(&ofproto->ofport_usage); |
abe529af | 1557 | shash_destroy(&ofproto->port_by_name); |
e1b1d06a | 1558 | simap_destroy(&ofproto->ofp_requests); |
6c1491fb | 1559 | |
b772ded8 | 1560 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
d0918789 | 1561 | oftable_destroy(table); |
6c1491fb BP |
1562 | } |
1563 | free(ofproto->tables); | |
fa066f01 | 1564 | |
1406c79b BP |
1565 | ovs_assert(hindex_is_empty(&ofproto->cookies)); |
1566 | hindex_destroy(&ofproto->cookies); | |
1567 | ||
35f48b8b BP |
1568 | ovs_assert(hmap_is_empty(&ofproto->learned_cookies)); |
1569 | hmap_destroy(&ofproto->learned_cookies); | |
1570 | ||
abe529af BP |
1571 | ofproto->ofproto_class->dealloc(ofproto); |
1572 | } | |
fa066f01 | 1573 | |
39c94593 JR |
1574 | /* Destroying rules is doubly deferred, must have 'ofproto' around for them. |
1575 | * - 1st we defer the removal of the rules from the classifier | |
1576 | * - 2nd we defer the actual destruction of the rules. */ | |
1577 | static void | |
1578 | ofproto_destroy_defer__(struct ofproto *ofproto) | |
1579 | OVS_EXCLUDED(ofproto_mutex) | |
1580 | { | |
1581 | ovsrcu_postpone(ofproto_destroy__, ofproto); | |
1582 | } | |
1583 | ||
064af421 | 1584 | void |
9aad5a5a | 1585 | ofproto_destroy(struct ofproto *p, bool del) |
15aaf599 | 1586 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 1587 | { |
ca0f572c | 1588 | struct ofport *ofport, *next_ofport; |
4ec3d7c7 | 1589 | struct ofport_usage *usage; |
064af421 BP |
1590 | |
1591 | if (!p) { | |
1592 | return; | |
1593 | } | |
1594 | ||
717de9ff JR |
1595 | if (p->meters) { |
1596 | meter_delete(p, 1, p->meter_features.max_meters); | |
1597 | p->meter_features.max_meters = 0; | |
1598 | free(p->meters); | |
1599 | p->meters = NULL; | |
1600 | } | |
1601 | ||
7ee20df1 | 1602 | ofproto_flush__(p); |
4e8e4213 | 1603 | HMAP_FOR_EACH_SAFE (ofport, next_ofport, hmap_node, &p->ports) { |
9aad5a5a | 1604 | ofport_destroy(ofport, del); |
064af421 | 1605 | } |
064af421 | 1606 | |
4ec3d7c7 | 1607 | HMAP_FOR_EACH_POP (usage, hmap_node, &p->ofport_usage) { |
fdcea803 GS |
1608 | free(usage); |
1609 | } | |
1610 | ||
abe529af | 1611 | p->ofproto_class->destruct(p); |
58f19539 DDP |
1612 | |
1613 | /* We should not postpone this because it involves deleting a listening | |
25010c68 JR |
1614 | * socket which we may want to reopen soon. 'connmgr' may be used by other |
1615 | * threads only if they take the ofproto_mutex and read a non-NULL | |
1616 | * 'ofproto->connmgr'. */ | |
1617 | ovs_mutex_lock(&ofproto_mutex); | |
58f19539 | 1618 | connmgr_destroy(p->connmgr); |
25010c68 JR |
1619 | p->connmgr = NULL; |
1620 | ovs_mutex_unlock(&ofproto_mutex); | |
58f19539 | 1621 | |
f416c8d6 | 1622 | /* Destroying rules is deferred, must have 'ofproto' around for them. */ |
39c94593 | 1623 | ovsrcu_postpone(ofproto_destroy_defer__, p); |
064af421 BP |
1624 | } |
1625 | ||
abe529af BP |
1626 | /* Destroys the datapath with the respective 'name' and 'type'. With the Linux |
1627 | * kernel datapath, for example, this destroys the datapath in the kernel, and | |
1628 | * with the netdev-based datapath, it tears down the data structures that | |
1629 | * represent the datapath. | |
1630 | * | |
1631 | * The datapath should not be currently open as an ofproto. */ | |
064af421 | 1632 | int |
abe529af | 1633 | ofproto_delete(const char *name, const char *type) |
064af421 | 1634 | { |
abe529af BP |
1635 | const struct ofproto_class *class = ofproto_class_find__(type); |
1636 | return (!class ? EAFNOSUPPORT | |
1637 | : !class->del ? EACCES | |
1638 | : class->del(type, name)); | |
064af421 BP |
1639 | } |
1640 | ||
e9e28be3 BP |
1641 | static void |
1642 | process_port_change(struct ofproto *ofproto, int error, char *devname) | |
1643 | { | |
1644 | if (error == ENOBUFS) { | |
1645 | reinit_ports(ofproto); | |
1646 | } else if (!error) { | |
1647 | update_port(ofproto, devname); | |
1648 | free(devname); | |
1649 | } | |
1650 | } | |
1651 | ||
11a574a7 JP |
1652 | int |
1653 | ofproto_type_run(const char *datapath_type) | |
1654 | { | |
1655 | const struct ofproto_class *class; | |
1656 | int error; | |
1657 | ||
1658 | datapath_type = ofproto_normalize_type(datapath_type); | |
1659 | class = ofproto_class_find__(datapath_type); | |
1660 | ||
1661 | error = class->type_run ? class->type_run(datapath_type) : 0; | |
1662 | if (error && error != EAGAIN) { | |
1663 | VLOG_ERR_RL(&rl, "%s: type_run failed (%s)", | |
10a89ef0 | 1664 | datapath_type, ovs_strerror(error)); |
11a574a7 JP |
1665 | } |
1666 | return error; | |
1667 | } | |
1668 | ||
11a574a7 JP |
1669 | void |
1670 | ofproto_type_wait(const char *datapath_type) | |
1671 | { | |
1672 | const struct ofproto_class *class; | |
1673 | ||
1674 | datapath_type = ofproto_normalize_type(datapath_type); | |
1675 | class = ofproto_class_find__(datapath_type); | |
1676 | ||
1677 | if (class->type_wait) { | |
1678 | class->type_wait(datapath_type); | |
1679 | } | |
1680 | } | |
1681 | ||
064af421 | 1682 | int |
abe529af | 1683 | ofproto_run(struct ofproto *p) |
064af421 | 1684 | { |
064af421 | 1685 | int error; |
da4a6191 | 1686 | uint64_t new_seq; |
064af421 | 1687 | |
abe529af | 1688 | error = p->ofproto_class->run(p); |
5fcc0d00 | 1689 | if (error && error != EAGAIN) { |
10a89ef0 | 1690 | VLOG_ERR_RL(&rl, "%s: run failed (%s)", p->name, ovs_strerror(error)); |
149f577a JG |
1691 | } |
1692 | ||
448c2fa8 EJ |
1693 | /* Restore the eviction group heap invariant occasionally. */ |
1694 | if (p->eviction_group_timer < time_msec()) { | |
1695 | size_t i; | |
1696 | ||
1697 | p->eviction_group_timer = time_msec() + 1000; | |
1698 | ||
1699 | for (i = 0; i < p->n_tables; i++) { | |
1700 | struct oftable *table = &p->tables[i]; | |
1701 | struct eviction_group *evg; | |
448c2fa8 EJ |
1702 | struct rule *rule; |
1703 | ||
82c22d34 | 1704 | if (!table->eviction) { |
448c2fa8 EJ |
1705 | continue; |
1706 | } | |
1707 | ||
d79e3d70 | 1708 | if (table->n_flows > 100000) { |
1a9bb326 EJ |
1709 | static struct vlog_rate_limit count_rl = |
1710 | VLOG_RATE_LIMIT_INIT(1, 1); | |
1711 | VLOG_WARN_RL(&count_rl, "Table %"PRIuSIZE" has an excessive" | |
d79e3d70 | 1712 | " number of rules: %d", i, table->n_flows); |
1a9bb326 EJ |
1713 | } |
1714 | ||
15aaf599 | 1715 | ovs_mutex_lock(&ofproto_mutex); |
5f0476ce | 1716 | CLS_FOR_EACH (rule, cr, &table->cls) { |
6d56c1f1 K |
1717 | if (rule->idle_timeout || rule->hard_timeout) { |
1718 | if (!rule->eviction_group) { | |
1719 | eviction_group_add_rule(rule); | |
1720 | } else { | |
1721 | heap_raw_change(&rule->evg_node, | |
1722 | rule_eviction_priority(p, rule)); | |
1723 | } | |
448c2fa8 EJ |
1724 | } |
1725 | } | |
6d56c1f1 K |
1726 | |
1727 | HEAP_FOR_EACH (evg, size_node, &table->eviction_groups_by_size) { | |
1728 | heap_rebuild(&evg->rules); | |
1729 | } | |
15aaf599 | 1730 | ovs_mutex_unlock(&ofproto_mutex); |
448c2fa8 EJ |
1731 | } |
1732 | } | |
1733 | ||
5bf0e941 | 1734 | if (p->ofproto_class->port_poll) { |
7436ed80 BP |
1735 | char *devname; |
1736 | ||
5bf0e941 BP |
1737 | while ((error = p->ofproto_class->port_poll(p, &devname)) != EAGAIN) { |
1738 | process_port_change(p, error, devname); | |
064af421 | 1739 | } |
e9e28be3 | 1740 | } |
031d8bff | 1741 | |
da4a6191 JS |
1742 | new_seq = seq_read(connectivity_seq_get()); |
1743 | if (new_seq != p->change_seq) { | |
1744 | struct sset devnames; | |
1745 | const char *devname; | |
1746 | struct ofport *ofport; | |
1747 | ||
1748 | /* Update OpenFlow port status for any port whose netdev has changed. | |
1749 | * | |
1750 | * Refreshing a given 'ofport' can cause an arbitrary ofport to be | |
1751 | * destroyed, so it's not safe to update ports directly from the | |
1752 | * HMAP_FOR_EACH loop, or even to use HMAP_FOR_EACH_SAFE. Instead, we | |
1753 | * need this two-phase approach. */ | |
1754 | sset_init(&devnames); | |
1755 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
61501798 AW |
1756 | uint64_t port_change_seq; |
1757 | ||
1758 | port_change_seq = netdev_get_change_seq(ofport->netdev); | |
1759 | if (ofport->change_seq != port_change_seq) { | |
1760 | ofport->change_seq = port_change_seq; | |
1761 | sset_add(&devnames, netdev_get_name(ofport->netdev)); | |
1762 | } | |
031d8bff | 1763 | } |
da4a6191 JS |
1764 | SSET_FOR_EACH (devname, &devnames) { |
1765 | update_port(p, devname); | |
1766 | } | |
1767 | sset_destroy(&devnames); | |
1768 | ||
1769 | p->change_seq = new_seq; | |
064af421 BP |
1770 | } |
1771 | ||
834fe5cb | 1772 | connmgr_run(p->connmgr, handle_openflow); |
064af421 | 1773 | |
5fcc0d00 BP |
1774 | return error; |
1775 | } | |
1776 | ||
064af421 BP |
1777 | void |
1778 | ofproto_wait(struct ofproto *p) | |
1779 | { | |
abe529af | 1780 | p->ofproto_class->wait(p); |
5bf0e941 BP |
1781 | if (p->ofproto_class->port_poll_wait) { |
1782 | p->ofproto_class->port_poll_wait(p); | |
e7934396 | 1783 | } |
da4a6191 | 1784 | seq_wait(connectivity_seq_get(), p->change_seq); |
834fe5cb | 1785 | connmgr_wait(p->connmgr); |
064af421 BP |
1786 | } |
1787 | ||
064af421 BP |
1788 | bool |
1789 | ofproto_is_alive(const struct ofproto *p) | |
1790 | { | |
19a87e36 | 1791 | return connmgr_has_controllers(p->connmgr); |
064af421 BP |
1792 | } |
1793 | ||
0d085684 BP |
1794 | /* Adds some memory usage statistics for 'ofproto' into 'usage', for use with |
1795 | * memory_report(). */ | |
1796 | void | |
1797 | ofproto_get_memory_usage(const struct ofproto *ofproto, struct simap *usage) | |
1798 | { | |
1799 | const struct oftable *table; | |
1800 | unsigned int n_rules; | |
1801 | ||
1802 | simap_increase(usage, "ports", hmap_count(&ofproto->ports)); | |
15aaf599 | 1803 | |
0d085684 BP |
1804 | n_rules = 0; |
1805 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { | |
d79e3d70 | 1806 | n_rules += table->n_flows; |
0d085684 BP |
1807 | } |
1808 | simap_increase(usage, "rules", n_rules); | |
1809 | ||
1810 | if (ofproto->ofproto_class->get_memory_usage) { | |
1811 | ofproto->ofproto_class->get_memory_usage(ofproto, usage); | |
1812 | } | |
1813 | ||
1814 | connmgr_get_memory_usage(ofproto->connmgr, usage); | |
1815 | } | |
1816 | ||
1c030aa5 EJ |
1817 | void |
1818 | ofproto_type_get_memory_usage(const char *datapath_type, struct simap *usage) | |
1819 | { | |
1820 | const struct ofproto_class *class; | |
1821 | ||
1822 | datapath_type = ofproto_normalize_type(datapath_type); | |
1823 | class = ofproto_class_find__(datapath_type); | |
1824 | ||
1825 | if (class && class->type_get_memory_usage) { | |
1826 | class->type_get_memory_usage(datapath_type, usage); | |
1827 | } | |
1828 | } | |
1829 | ||
bffc0589 | 1830 | void |
2cdcb898 | 1831 | ofproto_get_ofproto_controller_info(const struct ofproto *ofproto, |
bffc0589 AE |
1832 | struct shash *info) |
1833 | { | |
19a87e36 | 1834 | connmgr_get_controller_info(ofproto->connmgr, info); |
bffc0589 AE |
1835 | } |
1836 | ||
1837 | void | |
1838 | ofproto_free_ofproto_controller_info(struct shash *info) | |
1839 | { | |
72ba2ed3 | 1840 | connmgr_free_controller_info(info); |
bffc0589 AE |
1841 | } |
1842 | ||
b5827b24 BP |
1843 | /* Makes a deep copy of 'old' into 'port'. */ |
1844 | void | |
1845 | ofproto_port_clone(struct ofproto_port *port, const struct ofproto_port *old) | |
1846 | { | |
1847 | port->name = xstrdup(old->name); | |
1848 | port->type = xstrdup(old->type); | |
1849 | port->ofp_port = old->ofp_port; | |
1850 | } | |
1851 | ||
1852 | /* Frees memory allocated to members of 'ofproto_port'. | |
3a6ccc8c | 1853 | * |
b5827b24 BP |
1854 | * Do not call this function on an ofproto_port obtained from |
1855 | * ofproto_port_dump_next(): that function retains ownership of the data in the | |
1856 | * ofproto_port. */ | |
1857 | void | |
1858 | ofproto_port_destroy(struct ofproto_port *ofproto_port) | |
1859 | { | |
1860 | free(ofproto_port->name); | |
1861 | free(ofproto_port->type); | |
1862 | } | |
1863 | ||
b5827b24 | 1864 | /* Initializes 'dump' to begin dumping the ports in an ofproto. |
3a6ccc8c | 1865 | * |
b5827b24 BP |
1866 | * This function provides no status indication. An error status for the entire |
1867 | * dump operation is provided when it is completed by calling | |
1868 | * ofproto_port_dump_done(). | |
1869 | */ | |
1870 | void | |
1871 | ofproto_port_dump_start(struct ofproto_port_dump *dump, | |
1872 | const struct ofproto *ofproto) | |
1873 | { | |
abe529af BP |
1874 | dump->ofproto = ofproto; |
1875 | dump->error = ofproto->ofproto_class->port_dump_start(ofproto, | |
1876 | &dump->state); | |
b5827b24 BP |
1877 | } |
1878 | ||
1879 | /* Attempts to retrieve another port from 'dump', which must have been created | |
1880 | * with ofproto_port_dump_start(). On success, stores a new ofproto_port into | |
1881 | * 'port' and returns true. On failure, returns false. | |
1882 | * | |
1883 | * Failure might indicate an actual error or merely that the last port has been | |
1884 | * dumped. An error status for the entire dump operation is provided when it | |
1885 | * is completed by calling ofproto_port_dump_done(). | |
1886 | * | |
1887 | * The ofproto owns the data stored in 'port'. It will remain valid until at | |
1888 | * least the next time 'dump' is passed to ofproto_port_dump_next() or | |
1889 | * ofproto_port_dump_done(). */ | |
1890 | bool | |
1891 | ofproto_port_dump_next(struct ofproto_port_dump *dump, | |
1892 | struct ofproto_port *port) | |
1893 | { | |
abe529af BP |
1894 | const struct ofproto *ofproto = dump->ofproto; |
1895 | ||
1896 | if (dump->error) { | |
1897 | return false; | |
1898 | } | |
b5827b24 | 1899 | |
abe529af BP |
1900 | dump->error = ofproto->ofproto_class->port_dump_next(ofproto, dump->state, |
1901 | port); | |
1902 | if (dump->error) { | |
1903 | ofproto->ofproto_class->port_dump_done(ofproto, dump->state); | |
1904 | return false; | |
b5827b24 | 1905 | } |
abe529af | 1906 | return true; |
b5827b24 BP |
1907 | } |
1908 | ||
1909 | /* Completes port table dump operation 'dump', which must have been created | |
1910 | * with ofproto_port_dump_start(). Returns 0 if the dump operation was | |
1911 | * error-free, otherwise a positive errno value describing the problem. */ | |
3a6ccc8c | 1912 | int |
b5827b24 | 1913 | ofproto_port_dump_done(struct ofproto_port_dump *dump) |
3a6ccc8c | 1914 | { |
abe529af BP |
1915 | const struct ofproto *ofproto = dump->ofproto; |
1916 | if (!dump->error) { | |
1917 | dump->error = ofproto->ofproto_class->port_dump_done(ofproto, | |
1918 | dump->state); | |
1919 | } | |
1920 | return dump->error == EOF ? 0 : dump->error; | |
b5827b24 BP |
1921 | } |
1922 | ||
0aeaabc8 JP |
1923 | /* Returns the type to pass to netdev_open() when a datapath of type |
1924 | * 'datapath_type' has a port of type 'port_type', for a few special | |
1925 | * cases when a netdev type differs from a port type. For example, when | |
1926 | * using the userspace datapath, a port of type "internal" needs to be | |
1927 | * opened as "tap". | |
1928 | * | |
1929 | * Returns either 'type' itself or a string literal, which must not be | |
1930 | * freed. */ | |
1931 | const char * | |
1932 | ofproto_port_open_type(const char *datapath_type, const char *port_type) | |
1933 | { | |
1934 | const struct ofproto_class *class; | |
1935 | ||
1936 | datapath_type = ofproto_normalize_type(datapath_type); | |
1937 | class = ofproto_class_find__(datapath_type); | |
1938 | if (!class) { | |
1939 | return port_type; | |
1940 | } | |
1941 | ||
1942 | return (class->port_open_type | |
1943 | ? class->port_open_type(datapath_type, port_type) | |
1944 | : port_type); | |
1945 | } | |
1946 | ||
81816a5f JP |
1947 | /* Attempts to add 'netdev' as a port on 'ofproto'. If 'ofp_portp' is |
1948 | * non-null and '*ofp_portp' is not OFPP_NONE, attempts to use that as | |
1949 | * the port's OpenFlow port number. | |
1950 | * | |
1951 | * If successful, returns 0 and sets '*ofp_portp' to the new port's | |
1952 | * OpenFlow port number (if 'ofp_portp' is non-null). On failure, | |
1953 | * returns a positive errno value and sets '*ofp_portp' to OFPP_NONE (if | |
1954 | * 'ofp_portp' is non-null). */ | |
b5827b24 BP |
1955 | int |
1956 | ofproto_port_add(struct ofproto *ofproto, struct netdev *netdev, | |
4e022ec0 | 1957 | ofp_port_t *ofp_portp) |
b5827b24 | 1958 | { |
4e022ec0 | 1959 | ofp_port_t ofp_port = ofp_portp ? *ofp_portp : OFPP_NONE; |
3a6ccc8c BP |
1960 | int error; |
1961 | ||
e1b1d06a | 1962 | error = ofproto->ofproto_class->port_add(ofproto, netdev); |
1fa24dea | 1963 | if (!error) { |
e1b1d06a JP |
1964 | const char *netdev_name = netdev_get_name(netdev); |
1965 | ||
4e022ec0 AW |
1966 | simap_put(&ofproto->ofp_requests, netdev_name, |
1967 | ofp_to_u16(ofp_port)); | |
01c77073 | 1968 | error = update_port(ofproto, netdev_name); |
1fa24dea | 1969 | } |
b5827b24 | 1970 | if (ofp_portp) { |
17f69db5 BP |
1971 | *ofp_portp = OFPP_NONE; |
1972 | if (!error) { | |
1973 | struct ofproto_port ofproto_port; | |
1974 | ||
1975 | error = ofproto_port_query_by_name(ofproto, | |
1976 | netdev_get_name(netdev), | |
1977 | &ofproto_port); | |
1978 | if (!error) { | |
1979 | *ofp_portp = ofproto_port.ofp_port; | |
1980 | ofproto_port_destroy(&ofproto_port); | |
1981 | } | |
1982 | } | |
3a6ccc8c BP |
1983 | } |
1984 | return error; | |
1985 | } | |
1986 | ||
b5827b24 BP |
1987 | /* Looks up a port named 'devname' in 'ofproto'. On success, returns 0 and |
1988 | * initializes '*port' appropriately; on failure, returns a positive errno | |
1989 | * value. | |
1990 | * | |
abe529af | 1991 | * The caller owns the data in 'ofproto_port' and must free it with |
b5827b24 BP |
1992 | * ofproto_port_destroy() when it is no longer needed. */ |
1993 | int | |
1994 | ofproto_port_query_by_name(const struct ofproto *ofproto, const char *devname, | |
1995 | struct ofproto_port *port) | |
a4e2e1f2 | 1996 | { |
b5827b24 BP |
1997 | int error; |
1998 | ||
abe529af BP |
1999 | error = ofproto->ofproto_class->port_query_by_name(ofproto, devname, port); |
2000 | if (error) { | |
2001 | memset(port, 0, sizeof *port); | |
b5827b24 BP |
2002 | } |
2003 | return error; | |
a4e2e1f2 EJ |
2004 | } |
2005 | ||
b5827b24 | 2006 | /* Deletes port number 'ofp_port' from the datapath for 'ofproto'. |
3a6ccc8c | 2007 | * Returns 0 if successful, otherwise a positive errno. */ |
064af421 | 2008 | int |
4e022ec0 | 2009 | ofproto_port_del(struct ofproto *ofproto, ofp_port_t ofp_port) |
064af421 | 2010 | { |
abe529af | 2011 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1264ec95 | 2012 | const char *name = ofport ? netdev_get_name(ofport->netdev) : "<unknown>"; |
e1b1d06a | 2013 | struct simap_node *ofp_request_node; |
3cf10406 | 2014 | int error; |
cdee00fd | 2015 | |
e1b1d06a JP |
2016 | ofp_request_node = simap_find(&ofproto->ofp_requests, name); |
2017 | if (ofp_request_node) { | |
2018 | simap_delete(&ofproto->ofp_requests, ofp_request_node); | |
2019 | } | |
2020 | ||
abe529af | 2021 | error = ofproto->ofproto_class->port_del(ofproto, ofp_port); |
892815f5 | 2022 | if (!error && ofport) { |
1264ec95 BP |
2023 | /* 'name' is the netdev's name and update_port() is going to close the |
2024 | * netdev. Just in case update_port() refers to 'name' after it | |
3a6ccc8c BP |
2025 | * destroys 'ofport', make a copy of it around the update_port() |
2026 | * call. */ | |
2027 | char *devname = xstrdup(name); | |
2028 | update_port(ofproto, devname); | |
2029 | free(devname); | |
3cf10406 BP |
2030 | } |
2031 | return error; | |
064af421 BP |
2032 | } |
2033 | ||
91364d18 IM |
2034 | /* Refreshes datapath configuration of port number 'ofp_port' in 'ofproto'. |
2035 | * | |
2036 | * This function has no effect if 'ofproto' does not have a port 'ofp_port'. */ | |
2037 | void | |
2038 | ofproto_port_set_config(struct ofproto *ofproto, ofp_port_t ofp_port, | |
2039 | const struct smap *cfg) | |
2040 | { | |
2041 | struct ofport *ofport; | |
2042 | int error; | |
2043 | ||
2044 | ofport = ofproto_get_port(ofproto, ofp_port); | |
2045 | if (!ofport) { | |
2046 | VLOG_WARN("%s: cannot configure datapath on nonexistent port %"PRIu16, | |
2047 | ofproto->name, ofp_port); | |
2048 | return; | |
2049 | } | |
2050 | ||
2051 | error = (ofproto->ofproto_class->port_set_config | |
2052 | ? ofproto->ofproto_class->port_set_config(ofport, cfg) | |
2053 | : EOPNOTSUPP); | |
2054 | if (error) { | |
2055 | VLOG_WARN("%s: datapath configuration on port %"PRIu16 | |
2056 | " (%s) failed (%s)", | |
2057 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), | |
2058 | ovs_strerror(error)); | |
2059 | } | |
2060 | } | |
2061 | ||
2062 | ||
276f6518 SH |
2063 | static void |
2064 | flow_mod_init(struct ofputil_flow_mod *fm, | |
eb391b76 | 2065 | const struct match *match, int priority, |
276f6518 SH |
2066 | const struct ofpact *ofpacts, size_t ofpacts_len, |
2067 | enum ofp_flow_mod_command command) | |
2068 | { | |
39cc5c4a BP |
2069 | *fm = (struct ofputil_flow_mod) { |
2070 | .match = *match, | |
2071 | .priority = priority, | |
2072 | .table_id = 0, | |
2073 | .command = command, | |
2074 | .buffer_id = UINT32_MAX, | |
2075 | .out_port = OFPP_ANY, | |
2076 | .out_group = OFPG_ANY, | |
2077 | .ofpacts = CONST_CAST(struct ofpact *, ofpacts), | |
2078 | .ofpacts_len = ofpacts_len, | |
39cc5c4a | 2079 | }; |
276f6518 SH |
2080 | } |
2081 | ||
97f63e57 BP |
2082 | static int |
2083 | simple_flow_mod(struct ofproto *ofproto, | |
eb391b76 | 2084 | const struct match *match, int priority, |
97f63e57 BP |
2085 | const struct ofpact *ofpacts, size_t ofpacts_len, |
2086 | enum ofp_flow_mod_command command) | |
2087 | { | |
7338102b | 2088 | struct ofputil_flow_mod fm; |
97f63e57 | 2089 | |
7338102b | 2090 | flow_mod_init(&fm, match, priority, ofpacts, ofpacts_len, command); |
15aaf599 | 2091 | |
7338102b | 2092 | return handle_flow_mod__(ofproto, &fm, NULL); |
97f63e57 BP |
2093 | } |
2094 | ||
6c1491fb | 2095 | /* Adds a flow to OpenFlow flow table 0 in 'p' that matches 'cls_rule' and |
fa8b054f BP |
2096 | * performs the 'n_actions' actions in 'actions'. The new flow will not |
2097 | * timeout. | |
2098 | * | |
2099 | * If cls_rule->priority is in the range of priorities supported by OpenFlow | |
2100 | * (0...65535, inclusive) then the flow will be visible to OpenFlow | |
2101 | * controllers; otherwise, it will be hidden. | |
2102 | * | |
f25d0cf3 | 2103 | * The caller retains ownership of 'cls_rule' and 'ofpacts'. |
6c1491fb BP |
2104 | * |
2105 | * This is a helper function for in-band control and fail-open. */ | |
064af421 | 2106 | void |
81a76618 | 2107 | ofproto_add_flow(struct ofproto *ofproto, const struct match *match, |
eb391b76 | 2108 | int priority, |
f25d0cf3 | 2109 | const struct ofpact *ofpacts, size_t ofpacts_len) |
15aaf599 | 2110 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 2111 | { |
7ee20df1 | 2112 | const struct rule *rule; |
6f00e29b | 2113 | bool must_add; |
7ee20df1 | 2114 | |
97f63e57 BP |
2115 | /* First do a cheap check whether the rule we're looking for already exists |
2116 | * with the actions that we want. If it does, then we're done. */ | |
81a76618 | 2117 | rule = rule_from_cls_rule(classifier_find_match_exactly( |
2b7b1427 | 2118 | &ofproto->tables[0].cls, match, priority, |
44e0c35d | 2119 | OVS_VERSION_MAX)); |
6f00e29b | 2120 | if (rule) { |
dc723c44 | 2121 | const struct rule_actions *actions = rule_get_actions(rule); |
06a0f3e2 | 2122 | must_add = !ofpacts_equal(actions->ofpacts, actions->ofpacts_len, |
6f00e29b | 2123 | ofpacts, ofpacts_len); |
6f00e29b BP |
2124 | } else { |
2125 | must_add = true; | |
2126 | } | |
97f63e57 BP |
2127 | |
2128 | /* If there's no such rule or the rule doesn't have the actions we want, | |
2129 | * fall back to a executing a full flow mod. We can't optimize this at | |
2130 | * all because we didn't take enough locks above to ensure that the flow | |
2131 | * table didn't already change beneath us. */ | |
6f00e29b | 2132 | if (must_add) { |
97f63e57 BP |
2133 | simple_flow_mod(ofproto, match, priority, ofpacts, ofpacts_len, |
2134 | OFPFC_MODIFY_STRICT); | |
7ee20df1 | 2135 | } |
064af421 BP |
2136 | } |
2137 | ||
d51c8b71 JR |
2138 | /* Executes the flow modification specified in 'fm'. Returns 0 on success, or |
2139 | * an OFPERR_* OpenFlow error code on failure. | |
75a75043 | 2140 | * |
1b63b91e BP |
2141 | * This is a helper function for in-band control and fail-open and the "learn" |
2142 | * action. */ | |
d51c8b71 | 2143 | enum ofperr |
7338102b | 2144 | ofproto_flow_mod(struct ofproto *ofproto, const struct ofputil_flow_mod *fm) |
15aaf599 | 2145 | OVS_EXCLUDED(ofproto_mutex) |
75a75043 | 2146 | { |
b90d6ee5 JR |
2147 | /* Optimize for the most common case of a repeated learn action. |
2148 | * If an identical flow already exists we only need to update its | |
2149 | * 'modified' time. */ | |
2150 | if (fm->command == OFPFC_MODIFY_STRICT && fm->table_id != OFPTT_ALL | |
2151 | && !(fm->flags & OFPUTIL_FF_RESET_COUNTS)) { | |
2152 | struct oftable *table = &ofproto->tables[fm->table_id]; | |
b90d6ee5 JR |
2153 | struct rule *rule; |
2154 | bool done = false; | |
2155 | ||
2b7b1427 | 2156 | rule = rule_from_cls_rule(classifier_find_match_exactly( |
39c94593 | 2157 | &table->cls, &fm->match, fm->priority, |
44e0c35d | 2158 | OVS_VERSION_MAX)); |
b90d6ee5 JR |
2159 | if (rule) { |
2160 | /* Reading many of the rule fields and writing on 'modified' | |
5bacd5cd | 2161 | * requires the rule->mutex. */ |
06a0f3e2 BP |
2162 | const struct rule_actions *actions; |
2163 | ||
b90d6ee5 | 2164 | ovs_mutex_lock(&rule->mutex); |
06a0f3e2 | 2165 | actions = rule_get_actions(rule); |
b90d6ee5 JR |
2166 | if (rule->idle_timeout == fm->idle_timeout |
2167 | && rule->hard_timeout == fm->hard_timeout | |
ca26eb44 | 2168 | && rule->importance == fm->importance |
b90d6ee5 JR |
2169 | && rule->flags == (fm->flags & OFPUTIL_FF_STATE) |
2170 | && (!fm->modify_cookie || (fm->new_cookie == rule->flow_cookie)) | |
2171 | && ofpacts_equal(fm->ofpacts, fm->ofpacts_len, | |
06a0f3e2 | 2172 | actions->ofpacts, actions->ofpacts_len)) { |
b90d6ee5 JR |
2173 | /* Rule already exists and need not change, only update the |
2174 | modified timestamp. */ | |
2175 | rule->modified = time_msec(); | |
2176 | done = true; | |
2177 | } | |
2178 | ovs_mutex_unlock(&rule->mutex); | |
2179 | } | |
b90d6ee5 JR |
2180 | |
2181 | if (done) { | |
2182 | return 0; | |
2183 | } | |
2184 | } | |
2185 | ||
7338102b | 2186 | return handle_flow_mod__(ofproto, fm, NULL); |
75a75043 BP |
2187 | } |
2188 | ||
6c1491fb BP |
2189 | /* Searches for a rule with matching criteria exactly equal to 'target' in |
2190 | * ofproto's table 0 and, if it finds one, deletes it. | |
2191 | * | |
2192 | * This is a helper function for in-band control and fail-open. */ | |
b20f4073 | 2193 | void |
81a76618 | 2194 | ofproto_delete_flow(struct ofproto *ofproto, |
eb391b76 | 2195 | const struct match *target, int priority) |
25010c68 | 2196 | OVS_REQUIRES(ofproto_mutex) |
064af421 | 2197 | { |
8037acb4 | 2198 | struct classifier *cls = &ofproto->tables[0].cls; |
064af421 BP |
2199 | struct rule *rule; |
2200 | ||
97f63e57 BP |
2201 | /* First do a cheap check whether the rule we're looking for has already |
2202 | * been deleted. If so, then we're done. */ | |
39c94593 | 2203 | rule = rule_from_cls_rule(classifier_find_match_exactly( |
44e0c35d | 2204 | cls, target, priority, OVS_VERSION_MAX)); |
834fe5cb BP |
2205 | if (!rule) { |
2206 | return; | |
bcf84111 | 2207 | } |
834fe5cb | 2208 | |
25010c68 JR |
2209 | struct rule_collection rules; |
2210 | ||
2211 | rule_collection_init(&rules); | |
2212 | rule_collection_add(&rules, rule); | |
2213 | delete_flows__(&rules, OFPRR_DELETE, NULL); | |
2214 | rule_collection_destroy(&rules); | |
142e1f5c BP |
2215 | } |
2216 | ||
834fe5cb BP |
2217 | /* Delete all of the flows from all of ofproto's flow tables, then reintroduce |
2218 | * the flows required by in-band control and fail-open. */ | |
142e1f5c BP |
2219 | void |
2220 | ofproto_flush_flows(struct ofproto *ofproto) | |
2221 | { | |
7ee20df1 | 2222 | COVERAGE_INC(ofproto_flush); |
834fe5cb BP |
2223 | ofproto_flush__(ofproto); |
2224 | connmgr_flushed(ofproto->connmgr); | |
064af421 BP |
2225 | } |
2226 | \f | |
2227 | static void | |
2228 | reinit_ports(struct ofproto *p) | |
2229 | { | |
abe529af | 2230 | struct ofproto_port_dump dump; |
b3c01ed3 | 2231 | struct sset devnames; |
064af421 | 2232 | struct ofport *ofport; |
abe529af | 2233 | struct ofproto_port ofproto_port; |
b3c01ed3 | 2234 | const char *devname; |
064af421 | 2235 | |
898bf89d JP |
2236 | COVERAGE_INC(ofproto_reinit_ports); |
2237 | ||
b3c01ed3 | 2238 | sset_init(&devnames); |
4e8e4213 | 2239 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { |
1264ec95 | 2240 | sset_add(&devnames, netdev_get_name(ofport->netdev)); |
064af421 | 2241 | } |
abe529af BP |
2242 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { |
2243 | sset_add(&devnames, ofproto_port.name); | |
064af421 | 2244 | } |
064af421 | 2245 | |
b3c01ed3 BP |
2246 | SSET_FOR_EACH (devname, &devnames) { |
2247 | update_port(p, devname); | |
064af421 | 2248 | } |
b3c01ed3 | 2249 | sset_destroy(&devnames); |
064af421 BP |
2250 | } |
2251 | ||
4e022ec0 | 2252 | static ofp_port_t |
e1b1d06a JP |
2253 | alloc_ofp_port(struct ofproto *ofproto, const char *netdev_name) |
2254 | { | |
4e022ec0 | 2255 | uint16_t port_idx; |
e1b1d06a | 2256 | |
4e022ec0 | 2257 | port_idx = simap_get(&ofproto->ofp_requests, netdev_name); |
430dbb14 | 2258 | port_idx = port_idx ? port_idx : UINT16_MAX; |
4e022ec0 | 2259 | |
430dbb14 | 2260 | if (port_idx >= ofproto->max_ports |
fdcea803 GS |
2261 | || ofport_get_usage(ofproto, u16_to_ofp(port_idx)) == LLONG_MAX) { |
2262 | uint16_t lru_ofport = 0, end_port_no = ofproto->alloc_port_no; | |
2263 | long long int last_used_at, lru = LLONG_MAX; | |
e1b1d06a | 2264 | |
e1b1d06a JP |
2265 | /* Search for a free OpenFlow port number. We try not to |
2266 | * immediately reuse them to prevent problems due to old | |
484c8355 BP |
2267 | * flows. |
2268 | * | |
2269 | * We limit the automatically assigned port numbers to the lower half | |
2270 | * of the port range, to reserve the upper half for assignment by | |
2271 | * controllers. */ | |
6033d9d9 | 2272 | for (;;) { |
484c8355 | 2273 | if (++ofproto->alloc_port_no >= MIN(ofproto->max_ports, 32768)) { |
fdcea803 | 2274 | ofproto->alloc_port_no = 1; |
6033d9d9 | 2275 | } |
fdcea803 GS |
2276 | last_used_at = ofport_get_usage(ofproto, |
2277 | u16_to_ofp(ofproto->alloc_port_no)); | |
2278 | if (!last_used_at) { | |
430dbb14 | 2279 | port_idx = ofproto->alloc_port_no; |
6033d9d9 | 2280 | break; |
865b26a4 GS |
2281 | } else if ( last_used_at < time_msec() - 60*60*1000) { |
2282 | /* If the port with ofport 'ofproto->alloc_port_no' was deleted | |
2283 | * more than an hour ago, consider it usable. */ | |
2284 | ofport_remove_usage(ofproto, | |
2285 | u16_to_ofp(ofproto->alloc_port_no)); | |
2286 | port_idx = ofproto->alloc_port_no; | |
2287 | break; | |
fdcea803 GS |
2288 | } else if (last_used_at < lru) { |
2289 | lru = last_used_at; | |
2290 | lru_ofport = ofproto->alloc_port_no; | |
e1b1d06a | 2291 | } |
fdcea803 | 2292 | |
430dbb14 | 2293 | if (ofproto->alloc_port_no == end_port_no) { |
fdcea803 GS |
2294 | if (lru_ofport) { |
2295 | port_idx = lru_ofport; | |
2296 | break; | |
2297 | } | |
6033d9d9 | 2298 | return OFPP_NONE; |
e1b1d06a JP |
2299 | } |
2300 | } | |
2301 | } | |
fdcea803 | 2302 | ofport_set_usage(ofproto, u16_to_ofp(port_idx), LLONG_MAX); |
4e022ec0 | 2303 | return u16_to_ofp(port_idx); |
e1b1d06a JP |
2304 | } |
2305 | ||
2306 | static void | |
fdcea803 | 2307 | dealloc_ofp_port(struct ofproto *ofproto, ofp_port_t ofp_port) |
e1b1d06a | 2308 | { |
430dbb14 | 2309 | if (ofp_to_u16(ofp_port) < ofproto->max_ports) { |
fdcea803 | 2310 | ofport_set_usage(ofproto, ofp_port, time_msec()); |
40fa9417 | 2311 | } |
e1b1d06a JP |
2312 | } |
2313 | ||
fbfa2911 BP |
2314 | /* Opens and returns a netdev for 'ofproto_port' in 'ofproto', or a null |
2315 | * pointer if the netdev cannot be opened. On success, also fills in | |
d7d92203 | 2316 | * '*pp'. */ |
b33951b8 | 2317 | static struct netdev * |
e1b1d06a JP |
2318 | ofport_open(struct ofproto *ofproto, |
2319 | struct ofproto_port *ofproto_port, | |
9e1fd49b | 2320 | struct ofputil_phy_port *pp) |
064af421 BP |
2321 | { |
2322 | enum netdev_flags flags; | |
064af421 | 2323 | struct netdev *netdev; |
064af421 BP |
2324 | int error; |
2325 | ||
18812dff | 2326 | error = netdev_open(ofproto_port->name, ofproto_port->type, &netdev); |
064af421 | 2327 | if (error) { |
fbfa2911 | 2328 | VLOG_WARN_RL(&rl, "%s: ignoring port %s (%"PRIu16") because netdev %s " |
064af421 | 2329 | "cannot be opened (%s)", |
fbfa2911 | 2330 | ofproto->name, |
abe529af | 2331 | ofproto_port->name, ofproto_port->ofp_port, |
10a89ef0 | 2332 | ofproto_port->name, ovs_strerror(error)); |
064af421 BP |
2333 | return NULL; |
2334 | } | |
2335 | ||
e1b1d06a JP |
2336 | if (ofproto_port->ofp_port == OFPP_NONE) { |
2337 | if (!strcmp(ofproto->name, ofproto_port->name)) { | |
2338 | ofproto_port->ofp_port = OFPP_LOCAL; | |
2339 | } else { | |
2340 | ofproto_port->ofp_port = alloc_ofp_port(ofproto, | |
2341 | ofproto_port->name); | |
2342 | } | |
2343 | } | |
9e1fd49b | 2344 | pp->port_no = ofproto_port->ofp_port; |
74ff3298 | 2345 | netdev_get_etheraddr(netdev, &pp->hw_addr); |
9e1fd49b | 2346 | ovs_strlcpy(pp->name, ofproto_port->name, sizeof pp->name); |
064af421 | 2347 | netdev_get_flags(netdev, &flags); |
9e1fd49b BP |
2348 | pp->config = flags & NETDEV_UP ? 0 : OFPUTIL_PC_PORT_DOWN; |
2349 | pp->state = netdev_get_carrier(netdev) ? 0 : OFPUTIL_PS_LINK_DOWN; | |
2350 | netdev_get_features(netdev, &pp->curr, &pp->advertised, | |
2351 | &pp->supported, &pp->peer); | |
cd65125d BP |
2352 | pp->curr_speed = netdev_features_to_bps(pp->curr, 0) / 1000; |
2353 | pp->max_speed = netdev_features_to_bps(pp->supported, 0) / 1000; | |
118c4676 | 2354 | |
b33951b8 | 2355 | return netdev; |
064af421 BP |
2356 | } |
2357 | ||
b33951b8 | 2358 | /* Returns true if most fields of 'a' and 'b' are equal. Differences in name, |
d7d92203 | 2359 | * port number, and 'config' bits other than OFPUTIL_PC_PORT_DOWN are |
b33951b8 BP |
2360 | * disregarded. */ |
2361 | static bool | |
9e1fd49b BP |
2362 | ofport_equal(const struct ofputil_phy_port *a, |
2363 | const struct ofputil_phy_port *b) | |
064af421 | 2364 | { |
9e1fd49b | 2365 | return (eth_addr_equals(a->hw_addr, b->hw_addr) |
064af421 | 2366 | && a->state == b->state |
9e1fd49b | 2367 | && !((a->config ^ b->config) & OFPUTIL_PC_PORT_DOWN) |
064af421 BP |
2368 | && a->curr == b->curr |
2369 | && a->advertised == b->advertised | |
2370 | && a->supported == b->supported | |
9e1fd49b BP |
2371 | && a->peer == b->peer |
2372 | && a->curr_speed == b->curr_speed | |
2373 | && a->max_speed == b->max_speed); | |
064af421 BP |
2374 | } |
2375 | ||
b33951b8 BP |
2376 | /* Adds an ofport to 'p' initialized based on the given 'netdev' and 'opp'. |
2377 | * The caller must ensure that 'p' does not have a conflicting ofport (that is, | |
2378 | * one with the same name or port number). */ | |
01c77073 | 2379 | static int |
b33951b8 | 2380 | ofport_install(struct ofproto *p, |
9e1fd49b | 2381 | struct netdev *netdev, const struct ofputil_phy_port *pp) |
064af421 | 2382 | { |
b33951b8 BP |
2383 | const char *netdev_name = netdev_get_name(netdev); |
2384 | struct ofport *ofport; | |
abe529af | 2385 | int error; |
72b06300 | 2386 | |
b33951b8 | 2387 | /* Create ofport. */ |
abe529af BP |
2388 | ofport = p->ofproto_class->port_alloc(); |
2389 | if (!ofport) { | |
2390 | error = ENOMEM; | |
2391 | goto error; | |
2392 | } | |
0f7d71a5 | 2393 | ofport->ofproto = p; |
b33951b8 | 2394 | ofport->netdev = netdev; |
61501798 | 2395 | ofport->change_seq = netdev_get_change_seq(netdev); |
9e1fd49b BP |
2396 | ofport->pp = *pp; |
2397 | ofport->ofp_port = pp->port_no; | |
65e0be10 | 2398 | ofport->created = time_msec(); |
b33951b8 BP |
2399 | |
2400 | /* Add port to 'p'. */ | |
4e022ec0 | 2401 | hmap_insert(&p->ports, &ofport->hmap_node, |
f9c0c3ec | 2402 | hash_ofp_port(ofport->ofp_port)); |
72b06300 | 2403 | shash_add(&p->port_by_name, netdev_name, ofport); |
abe529af | 2404 | |
ada3428f | 2405 | update_mtu(p, ofport); |
9197df76 | 2406 | |
abe529af BP |
2407 | /* Let the ofproto_class initialize its private data. */ |
2408 | error = p->ofproto_class->port_construct(ofport); | |
2409 | if (error) { | |
2410 | goto error; | |
2411 | } | |
2a6f78e0 | 2412 | connmgr_send_port_status(p->connmgr, NULL, pp, OFPPR_ADD); |
01c77073 | 2413 | return 0; |
abe529af BP |
2414 | |
2415 | error: | |
2416 | VLOG_WARN_RL(&rl, "%s: could not add port %s (%s)", | |
10a89ef0 | 2417 | p->name, netdev_name, ovs_strerror(error)); |
abe529af BP |
2418 | if (ofport) { |
2419 | ofport_destroy__(ofport); | |
2420 | } else { | |
2421 | netdev_close(netdev); | |
72b06300 | 2422 | } |
01c77073 | 2423 | return error; |
064af421 BP |
2424 | } |
2425 | ||
b33951b8 | 2426 | /* Removes 'ofport' from 'p' and destroys it. */ |
064af421 | 2427 | static void |
0f7d71a5 | 2428 | ofport_remove(struct ofport *ofport) |
064af421 | 2429 | { |
0670b5d0 | 2430 | struct ofproto *p = ofport->ofproto; |
3a414a0a | 2431 | bool is_mtu_overridden = ofport_is_mtu_overridden(p, ofport); |
0670b5d0 | 2432 | |
2a6f78e0 | 2433 | connmgr_send_port_status(ofport->ofproto->connmgr, NULL, &ofport->pp, |
fa066f01 | 2434 | OFPPR_DELETE); |
9aad5a5a | 2435 | ofport_destroy(ofport, true); |
3a414a0a | 2436 | if (!is_mtu_overridden) { |
0670b5d0 | 2437 | update_mtu_ofproto(p); |
2438 | } | |
b33951b8 BP |
2439 | } |
2440 | ||
2441 | /* If 'ofproto' contains an ofport named 'name', removes it from 'ofproto' and | |
2442 | * destroys it. */ | |
2443 | static void | |
2444 | ofport_remove_with_name(struct ofproto *ofproto, const char *name) | |
2445 | { | |
2446 | struct ofport *port = shash_find_data(&ofproto->port_by_name, name); | |
2447 | if (port) { | |
0f7d71a5 | 2448 | ofport_remove(port); |
b33951b8 BP |
2449 | } |
2450 | } | |
2451 | ||
9e1fd49b | 2452 | /* Updates 'port' with new 'pp' description. |
b33951b8 BP |
2453 | * |
2454 | * Does not handle a name or port number change. The caller must implement | |
2455 | * such a change as a delete followed by an add. */ | |
2456 | static void | |
9e1fd49b | 2457 | ofport_modified(struct ofport *port, struct ofputil_phy_port *pp) |
b33951b8 | 2458 | { |
74ff3298 | 2459 | port->pp.hw_addr = pp->hw_addr; |
9e1fd49b BP |
2460 | port->pp.config = ((port->pp.config & ~OFPUTIL_PC_PORT_DOWN) |
2461 | | (pp->config & OFPUTIL_PC_PORT_DOWN)); | |
53fd5c7c BP |
2462 | port->pp.state = ((port->pp.state & ~OFPUTIL_PS_LINK_DOWN) |
2463 | | (pp->state & OFPUTIL_PS_LINK_DOWN)); | |
9e1fd49b BP |
2464 | port->pp.curr = pp->curr; |
2465 | port->pp.advertised = pp->advertised; | |
2466 | port->pp.supported = pp->supported; | |
2467 | port->pp.peer = pp->peer; | |
2468 | port->pp.curr_speed = pp->curr_speed; | |
2469 | port->pp.max_speed = pp->max_speed; | |
b33951b8 | 2470 | |
2a6f78e0 BP |
2471 | connmgr_send_port_status(port->ofproto->connmgr, NULL, |
2472 | &port->pp, OFPPR_MODIFY); | |
064af421 BP |
2473 | } |
2474 | ||
5a2dfd47 JP |
2475 | /* Update OpenFlow 'state' in 'port' and notify controller. */ |
2476 | void | |
9e1fd49b | 2477 | ofproto_port_set_state(struct ofport *port, enum ofputil_port_state state) |
5a2dfd47 | 2478 | { |
9e1fd49b BP |
2479 | if (port->pp.state != state) { |
2480 | port->pp.state = state; | |
2a6f78e0 BP |
2481 | connmgr_send_port_status(port->ofproto->connmgr, NULL, |
2482 | &port->pp, OFPPR_MODIFY); | |
5a2dfd47 JP |
2483 | } |
2484 | } | |
2485 | ||
abe529af | 2486 | void |
4e022ec0 | 2487 | ofproto_port_unregister(struct ofproto *ofproto, ofp_port_t ofp_port) |
e7934396 | 2488 | { |
abe529af BP |
2489 | struct ofport *port = ofproto_get_port(ofproto, ofp_port); |
2490 | if (port) { | |
b308140a JP |
2491 | if (port->ofproto->ofproto_class->set_stp_port) { |
2492 | port->ofproto->ofproto_class->set_stp_port(port, NULL); | |
2493 | } | |
9efd308e DV |
2494 | if (port->ofproto->ofproto_class->set_rstp_port) { |
2495 | port->ofproto->ofproto_class->set_rstp_port(port, NULL); | |
2496 | } | |
abe529af | 2497 | if (port->ofproto->ofproto_class->set_cfm) { |
a5610457 | 2498 | port->ofproto->ofproto_class->set_cfm(port, NULL); |
abe529af BP |
2499 | } |
2500 | if (port->ofproto->ofproto_class->bundle_remove) { | |
2501 | port->ofproto->ofproto_class->bundle_remove(port); | |
e7934396 BP |
2502 | } |
2503 | } | |
2504 | } | |
2505 | ||
2506 | static void | |
abe529af | 2507 | ofport_destroy__(struct ofport *port) |
e7934396 | 2508 | { |
abe529af BP |
2509 | struct ofproto *ofproto = port->ofproto; |
2510 | const char *name = netdev_get_name(port->netdev); | |
fa066f01 | 2511 | |
abe529af BP |
2512 | hmap_remove(&ofproto->ports, &port->hmap_node); |
2513 | shash_delete(&ofproto->port_by_name, | |
2514 | shash_find(&ofproto->port_by_name, name)); | |
fa066f01 | 2515 | |
abe529af BP |
2516 | netdev_close(port->netdev); |
2517 | ofproto->ofproto_class->port_dealloc(port); | |
e7934396 BP |
2518 | } |
2519 | ||
064af421 | 2520 | static void |
9aad5a5a | 2521 | ofport_destroy(struct ofport *port, bool del) |
064af421 | 2522 | { |
fa066f01 | 2523 | if (port) { |
e1b1d06a | 2524 | dealloc_ofp_port(port->ofproto, port->ofp_port); |
9aad5a5a | 2525 | port->ofproto->ofproto_class->port_destruct(port, del); |
abe529af BP |
2526 | ofport_destroy__(port); |
2527 | } | |
064af421 BP |
2528 | } |
2529 | ||
abe529af | 2530 | struct ofport * |
4e022ec0 | 2531 | ofproto_get_port(const struct ofproto *ofproto, ofp_port_t ofp_port) |
ca0f572c BP |
2532 | { |
2533 | struct ofport *port; | |
2534 | ||
f9c0c3ec | 2535 | HMAP_FOR_EACH_IN_BUCKET (port, hmap_node, hash_ofp_port(ofp_port), |
4e022ec0 | 2536 | &ofproto->ports) { |
abe529af | 2537 | if (port->ofp_port == ofp_port) { |
ca0f572c BP |
2538 | return port; |
2539 | } | |
2540 | } | |
2541 | return NULL; | |
2542 | } | |
2543 | ||
fdcea803 GS |
2544 | static long long int |
2545 | ofport_get_usage(const struct ofproto *ofproto, ofp_port_t ofp_port) | |
2546 | { | |
2547 | struct ofport_usage *usage; | |
2548 | ||
2549 | HMAP_FOR_EACH_IN_BUCKET (usage, hmap_node, hash_ofp_port(ofp_port), | |
2550 | &ofproto->ofport_usage) { | |
2551 | if (usage->ofp_port == ofp_port) { | |
2552 | return usage->last_used; | |
2553 | } | |
2554 | } | |
2555 | return 0; | |
2556 | } | |
2557 | ||
2558 | static void | |
2559 | ofport_set_usage(struct ofproto *ofproto, ofp_port_t ofp_port, | |
2560 | long long int last_used) | |
2561 | { | |
2562 | struct ofport_usage *usage; | |
2563 | HMAP_FOR_EACH_IN_BUCKET (usage, hmap_node, hash_ofp_port(ofp_port), | |
2564 | &ofproto->ofport_usage) { | |
2565 | if (usage->ofp_port == ofp_port) { | |
2566 | usage->last_used = last_used; | |
2567 | return; | |
2568 | } | |
2569 | } | |
2570 | ovs_assert(last_used == LLONG_MAX); | |
2571 | ||
2572 | usage = xmalloc(sizeof *usage); | |
2573 | usage->ofp_port = ofp_port; | |
2574 | usage->last_used = last_used; | |
2575 | hmap_insert(&ofproto->ofport_usage, &usage->hmap_node, | |
2576 | hash_ofp_port(ofp_port)); | |
2577 | } | |
2578 | ||
865b26a4 GS |
2579 | static void |
2580 | ofport_remove_usage(struct ofproto *ofproto, ofp_port_t ofp_port) | |
2581 | { | |
2582 | struct ofport_usage *usage; | |
2583 | HMAP_FOR_EACH_IN_BUCKET (usage, hmap_node, hash_ofp_port(ofp_port), | |
2584 | &ofproto->ofport_usage) { | |
2585 | if (usage->ofp_port == ofp_port) { | |
2586 | hmap_remove(&ofproto->ofport_usage, &usage->hmap_node); | |
2587 | free(usage); | |
2588 | break; | |
2589 | } | |
2590 | } | |
2591 | } | |
2592 | ||
6527c598 PS |
2593 | int |
2594 | ofproto_port_get_stats(const struct ofport *port, struct netdev_stats *stats) | |
2595 | { | |
2596 | struct ofproto *ofproto = port->ofproto; | |
2597 | int error; | |
2598 | ||
2599 | if (ofproto->ofproto_class->port_get_stats) { | |
2600 | error = ofproto->ofproto_class->port_get_stats(port, stats); | |
2601 | } else { | |
2602 | error = EOPNOTSUPP; | |
2603 | } | |
2604 | ||
2605 | return error; | |
2606 | } | |
2607 | ||
01c77073 | 2608 | static int |
b33951b8 | 2609 | update_port(struct ofproto *ofproto, const char *name) |
064af421 | 2610 | { |
abe529af | 2611 | struct ofproto_port ofproto_port; |
9e1fd49b | 2612 | struct ofputil_phy_port pp; |
b33951b8 BP |
2613 | struct netdev *netdev; |
2614 | struct ofport *port; | |
01c77073 | 2615 | int error = 0; |
064af421 BP |
2616 | |
2617 | COVERAGE_INC(ofproto_update_port); | |
c874dc6d | 2618 | |
b33951b8 | 2619 | /* Fetch 'name''s location and properties from the datapath. */ |
abe529af | 2620 | netdev = (!ofproto_port_query_by_name(ofproto, name, &ofproto_port) |
fbfa2911 | 2621 | ? ofport_open(ofproto, &ofproto_port, &pp) |
b33951b8 | 2622 | : NULL); |
4e022ec0 | 2623 | |
b33951b8 | 2624 | if (netdev) { |
abe529af | 2625 | port = ofproto_get_port(ofproto, ofproto_port.ofp_port); |
b33951b8 | 2626 | if (port && !strcmp(netdev_get_name(port->netdev), name)) { |
e65942a0 BP |
2627 | struct netdev *old_netdev = port->netdev; |
2628 | ||
b33951b8 | 2629 | /* 'name' hasn't changed location. Any properties changed? */ |
9e1fd49b BP |
2630 | if (!ofport_equal(&port->pp, &pp)) { |
2631 | ofport_modified(port, &pp); | |
abe529af BP |
2632 | } |
2633 | ||
ada3428f | 2634 | update_mtu(ofproto, port); |
9197df76 | 2635 | |
e65942a0 BP |
2636 | /* Install the newly opened netdev in case it has changed. |
2637 | * Don't close the old netdev yet in case port_modified has to | |
2638 | * remove a retained reference to it.*/ | |
abe529af | 2639 | port->netdev = netdev; |
61501798 | 2640 | port->change_seq = netdev_get_change_seq(netdev); |
abe529af BP |
2641 | |
2642 | if (port->ofproto->ofproto_class->port_modified) { | |
2643 | port->ofproto->ofproto_class->port_modified(port); | |
b33951b8 | 2644 | } |
e65942a0 BP |
2645 | |
2646 | netdev_close(old_netdev); | |
b33951b8 BP |
2647 | } else { |
2648 | /* If 'port' is nonnull then its name differs from 'name' and thus | |
2649 | * we should delete it. If we think there's a port named 'name' | |
2650 | * then its port number must be wrong now so delete it too. */ | |
2651 | if (port) { | |
0f7d71a5 | 2652 | ofport_remove(port); |
b33951b8 BP |
2653 | } |
2654 | ofport_remove_with_name(ofproto, name); | |
01c77073 | 2655 | error = ofport_install(ofproto, netdev, &pp); |
c874dc6d | 2656 | } |
b33951b8 BP |
2657 | } else { |
2658 | /* Any port named 'name' is gone now. */ | |
2659 | ofport_remove_with_name(ofproto, name); | |
c874dc6d | 2660 | } |
abe529af | 2661 | ofproto_port_destroy(&ofproto_port); |
01c77073 BP |
2662 | |
2663 | return error; | |
064af421 BP |
2664 | } |
2665 | ||
2666 | static int | |
2667 | init_ports(struct ofproto *p) | |
2668 | { | |
abe529af BP |
2669 | struct ofproto_port_dump dump; |
2670 | struct ofproto_port ofproto_port; | |
e1b1d06a | 2671 | struct shash_node *node, *next; |
abe529af BP |
2672 | |
2673 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { | |
e1b1d06a JP |
2674 | const char *name = ofproto_port.name; |
2675 | ||
2676 | if (shash_find(&p->port_by_name, name)) { | |
fbfa2911 | 2677 | VLOG_WARN_RL(&rl, "%s: ignoring duplicate device %s in datapath", |
e1b1d06a | 2678 | p->name, name); |
abe529af | 2679 | } else { |
9e1fd49b | 2680 | struct ofputil_phy_port pp; |
b33951b8 BP |
2681 | struct netdev *netdev; |
2682 | ||
e1b1d06a JP |
2683 | /* Check if an OpenFlow port number had been requested. */ |
2684 | node = shash_find(&init_ofp_ports, name); | |
2685 | if (node) { | |
2686 | const struct iface_hint *iface_hint = node->data; | |
4e022ec0 AW |
2687 | simap_put(&p->ofp_requests, name, |
2688 | ofp_to_u16(iface_hint->ofp_port)); | |
e1b1d06a JP |
2689 | } |
2690 | ||
fbfa2911 | 2691 | netdev = ofport_open(p, &ofproto_port, &pp); |
b33951b8 | 2692 | if (netdev) { |
9e1fd49b | 2693 | ofport_install(p, netdev, &pp); |
430dbb14 | 2694 | if (ofp_to_u16(ofproto_port.ofp_port) < p->max_ports) { |
7c35397c | 2695 | p->alloc_port_no = MAX(p->alloc_port_no, |
430dbb14 | 2696 | ofp_to_u16(ofproto_port.ofp_port)); |
7c35397c | 2697 | } |
064af421 BP |
2698 | } |
2699 | } | |
2700 | } | |
b0ec0f27 | 2701 | |
e1b1d06a | 2702 | SHASH_FOR_EACH_SAFE(node, next, &init_ofp_ports) { |
4f9e08a5 | 2703 | struct iface_hint *iface_hint = node->data; |
e1b1d06a JP |
2704 | |
2705 | if (!strcmp(iface_hint->br_name, p->name)) { | |
2706 | free(iface_hint->br_name); | |
2707 | free(iface_hint->br_type); | |
4f9e08a5 | 2708 | free(iface_hint); |
e1b1d06a JP |
2709 | shash_delete(&init_ofp_ports, node); |
2710 | } | |
2711 | } | |
2712 | ||
064af421 BP |
2713 | return 0; |
2714 | } | |
9197df76 | 2715 | |
3a414a0a | 2716 | static bool |
86fce577 | 2717 | ofport_is_internal(const struct ofproto *p, const struct ofport *port) |
0670b5d0 | 2718 | { |
86fce577 DDP |
2719 | return !strcmp(netdev_get_type(port->netdev), |
2720 | ofproto_port_open_type(p->type, "internal")); | |
0670b5d0 | 2721 | } |
2722 | ||
3a414a0a DDP |
2723 | /* If 'port' is internal and if the user didn't explicitly specify an mtu |
2724 | * through the database, we have to override it. */ | |
2725 | static bool | |
2726 | ofport_is_mtu_overridden(const struct ofproto *p, const struct ofport *port) | |
2727 | { | |
2728 | return ofport_is_internal(p, port) | |
2729 | && !netdev_mtu_is_user_config(port->netdev); | |
2730 | } | |
2731 | ||
2732 | /* Find the minimum MTU of all non-overridden devices attached to 'p'. | |
9197df76 JP |
2733 | * Returns ETH_PAYLOAD_MAX or the minimum of the ports. */ |
2734 | static int | |
2735 | find_min_mtu(struct ofproto *p) | |
2736 | { | |
2737 | struct ofport *ofport; | |
2738 | int mtu = 0; | |
2739 | ||
2740 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
2741 | struct netdev *netdev = ofport->netdev; | |
2742 | int dev_mtu; | |
2743 | ||
3a414a0a DDP |
2744 | /* Skip any overridden port, since that's what we're trying to set. */ |
2745 | if (ofport_is_mtu_overridden(p, ofport)) { | |
9197df76 JP |
2746 | continue; |
2747 | } | |
2748 | ||
2749 | if (netdev_get_mtu(netdev, &dev_mtu)) { | |
2750 | continue; | |
2751 | } | |
2752 | if (!mtu || dev_mtu < mtu) { | |
2753 | mtu = dev_mtu; | |
2754 | } | |
2755 | } | |
2756 | ||
2757 | return mtu ? mtu: ETH_PAYLOAD_MAX; | |
2758 | } | |
2759 | ||
3a414a0a DDP |
2760 | /* Update MTU of all overridden devices on 'p' to the minimum of the |
2761 | * non-overridden ports in event of 'port' added or changed. */ | |
9197df76 | 2762 | static void |
ada3428f | 2763 | update_mtu(struct ofproto *p, struct ofport *port) |
9197df76 | 2764 | { |
ada3428f | 2765 | struct netdev *netdev = port->netdev; |
0670b5d0 | 2766 | int dev_mtu; |
ada3428f PS |
2767 | |
2768 | if (netdev_get_mtu(netdev, &dev_mtu)) { | |
2769 | port->mtu = 0; | |
2770 | return; | |
2771 | } | |
3a414a0a | 2772 | if (ofport_is_mtu_overridden(p, port)) { |
7478b5a2 | 2773 | if (dev_mtu > p->min_mtu) { |
3a414a0a DDP |
2774 | if (!netdev_set_mtu(port->netdev, p->min_mtu)) { |
2775 | dev_mtu = p->min_mtu; | |
2776 | } | |
ada3428f PS |
2777 | } |
2778 | port->mtu = dev_mtu; | |
2779 | return; | |
2780 | } | |
2781 | ||
ada3428f | 2782 | port->mtu = dev_mtu; |
3a414a0a DDP |
2783 | /* For non-overridden port find new min mtu. */ |
2784 | ||
0670b5d0 | 2785 | update_mtu_ofproto(p); |
2786 | } | |
2787 | ||
2788 | static void | |
2789 | update_mtu_ofproto(struct ofproto *p) | |
2790 | { | |
0670b5d0 | 2791 | struct ofport *ofport; |
2792 | int old_min = p->min_mtu; | |
2793 | ||
ada3428f PS |
2794 | p->min_mtu = find_min_mtu(p); |
2795 | if (p->min_mtu == old_min) { | |
2796 | return; | |
2797 | } | |
9197df76 JP |
2798 | |
2799 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
2800 | struct netdev *netdev = ofport->netdev; | |
2801 | ||
3a414a0a | 2802 | if (ofport_is_mtu_overridden(p, ofport)) { |
ada3428f PS |
2803 | if (!netdev_set_mtu(netdev, p->min_mtu)) { |
2804 | ofport->mtu = p->min_mtu; | |
2805 | } | |
9197df76 JP |
2806 | } |
2807 | } | |
2808 | } | |
064af421 | 2809 | \f |
f416c8d6 JR |
2810 | static void |
2811 | ofproto_rule_destroy__(struct rule *rule) | |
2812 | OVS_NO_THREAD_SAFETY_ANALYSIS | |
2813 | { | |
2814 | cls_rule_destroy(CONST_CAST(struct cls_rule *, &rule->cr)); | |
2815 | rule_actions_destroy(rule_get_actions(rule)); | |
2816 | ovs_mutex_destroy(&rule->mutex); | |
2817 | rule->ofproto->ofproto_class->rule_dealloc(rule); | |
2818 | } | |
2819 | ||
2820 | static void | |
2821 | rule_destroy_cb(struct rule *rule) | |
f695ebfa | 2822 | OVS_NO_THREAD_SAFETY_ANALYSIS |
f416c8d6 | 2823 | { |
f695ebfa JR |
2824 | /* Send rule removed if needed. */ |
2825 | if (rule->flags & OFPUTIL_FF_SEND_FLOW_REM | |
2826 | && rule->removed_reason != OVS_OFPRR_NONE | |
2827 | && !rule_is_hidden(rule)) { | |
2828 | ofproto_rule_send_removed(rule); | |
2829 | } | |
f416c8d6 JR |
2830 | rule->ofproto->ofproto_class->rule_destruct(rule); |
2831 | ofproto_rule_destroy__(rule); | |
2832 | } | |
2833 | ||
a2143702 BP |
2834 | void |
2835 | ofproto_rule_ref(struct rule *rule) | |
064af421 | 2836 | { |
1eae3d33 | 2837 | if (rule) { |
37bec3d3 | 2838 | ovs_refcount_ref(&rule->ref_count); |
a2143702 BP |
2839 | } |
2840 | } | |
2841 | ||
f5d16e55 JR |
2842 | bool |
2843 | ofproto_rule_try_ref(struct rule *rule) | |
2844 | { | |
2845 | if (rule) { | |
2846 | return ovs_refcount_try_ref_rcu(&rule->ref_count); | |
2847 | } | |
2848 | return false; | |
2849 | } | |
2850 | ||
f416c8d6 JR |
2851 | /* Decrements 'rule''s ref_count and schedules 'rule' to be destroyed if the |
2852 | * ref_count reaches 0. | |
2853 | * | |
2854 | * Use of RCU allows short term use (between RCU quiescent periods) without | |
2855 | * keeping a reference. A reference must be taken if the rule needs to | |
2856 | * stay around accross the RCU quiescent periods. */ | |
a2143702 BP |
2857 | void |
2858 | ofproto_rule_unref(struct rule *rule) | |
2859 | { | |
24f83812 | 2860 | if (rule && ovs_refcount_unref_relaxed(&rule->ref_count) == 1) { |
f416c8d6 | 2861 | ovsrcu_postpone(rule_destroy_cb, rule); |
1eae3d33 | 2862 | } |
064af421 BP |
2863 | } |
2864 | ||
39c94593 JR |
2865 | static void |
2866 | remove_rule_rcu__(struct rule *rule) | |
2867 | OVS_REQUIRES(ofproto_mutex) | |
2868 | { | |
2869 | struct ofproto *ofproto = rule->ofproto; | |
2870 | struct oftable *table = &ofproto->tables[rule->table_id]; | |
2871 | ||
44e0c35d | 2872 | ovs_assert(!cls_rule_visible_in_version(&rule->cr, OVS_VERSION_MAX)); |
39c94593 JR |
2873 | if (!classifier_remove(&table->cls, &rule->cr)) { |
2874 | OVS_NOT_REACHED(); | |
2875 | } | |
1fc71871 JR |
2876 | if (ofproto->ofproto_class->rule_delete) { |
2877 | ofproto->ofproto_class->rule_delete(rule); | |
2878 | } | |
39c94593 JR |
2879 | ofproto_rule_unref(rule); |
2880 | } | |
2881 | ||
2882 | static void | |
2883 | remove_rule_rcu(struct rule *rule) | |
2884 | OVS_EXCLUDED(ofproto_mutex) | |
2885 | { | |
2886 | ovs_mutex_lock(&ofproto_mutex); | |
2887 | remove_rule_rcu__(rule); | |
2888 | ovs_mutex_unlock(&ofproto_mutex); | |
2889 | } | |
2890 | ||
2891 | /* Removes and deletes rules from a NULL-terminated array of rule pointers. */ | |
2892 | static void | |
2893 | remove_rules_rcu(struct rule **rules) | |
2894 | OVS_EXCLUDED(ofproto_mutex) | |
2895 | { | |
2896 | struct rule **orig_rules = rules; | |
2897 | ||
2898 | if (*rules) { | |
2899 | struct ofproto *ofproto = rules[0]->ofproto; | |
2900 | unsigned long tables[BITMAP_N_LONGS(256)]; | |
2901 | struct rule *rule; | |
2902 | size_t table_id; | |
2903 | ||
2904 | memset(tables, 0, sizeof tables); | |
2905 | ||
2906 | ovs_mutex_lock(&ofproto_mutex); | |
2907 | while ((rule = *rules++)) { | |
2908 | /* Defer once for each new table. This defers the subtable cleanup | |
2909 | * until later, so that when removing large number of flows the | |
2910 | * operation is faster. */ | |
2911 | if (!bitmap_is_set(tables, rule->table_id)) { | |
2912 | struct classifier *cls = &ofproto->tables[rule->table_id].cls; | |
2913 | ||
2914 | bitmap_set1(tables, rule->table_id); | |
2915 | classifier_defer(cls); | |
2916 | } | |
2917 | remove_rule_rcu__(rule); | |
2918 | } | |
2919 | ||
2920 | BITMAP_FOR_EACH_1(table_id, 256, tables) { | |
2921 | struct classifier *cls = &ofproto->tables[table_id].cls; | |
2922 | ||
2923 | classifier_publish(cls); | |
2924 | } | |
2925 | ovs_mutex_unlock(&ofproto_mutex); | |
2926 | } | |
2927 | ||
2928 | free(orig_rules); | |
2929 | } | |
2930 | ||
809c7548 RW |
2931 | void |
2932 | ofproto_group_ref(struct ofgroup *group) | |
2933 | { | |
2934 | if (group) { | |
2935 | ovs_refcount_ref(&group->ref_count); | |
2936 | } | |
2937 | } | |
2938 | ||
db88b35c JR |
2939 | bool |
2940 | ofproto_group_try_ref(struct ofgroup *group) | |
2941 | { | |
2942 | if (group) { | |
2943 | return ovs_refcount_try_ref_rcu(&group->ref_count); | |
2944 | } | |
2945 | return false; | |
2946 | } | |
2947 | ||
2948 | static void | |
2949 | group_destroy_cb(struct ofgroup *group) | |
2950 | { | |
2951 | group->ofproto->ofproto_class->group_destruct(group); | |
e8dba719 JR |
2952 | ofputil_group_properties_destroy(CONST_CAST(struct ofputil_group_props *, |
2953 | &group->props)); | |
db88b35c JR |
2954 | ofputil_bucket_list_destroy(CONST_CAST(struct ovs_list *, |
2955 | &group->buckets)); | |
2956 | group->ofproto->ofproto_class->group_dealloc(group); | |
2957 | } | |
2958 | ||
809c7548 RW |
2959 | void |
2960 | ofproto_group_unref(struct ofgroup *group) | |
cc099268 | 2961 | OVS_NO_THREAD_SAFETY_ANALYSIS |
809c7548 | 2962 | { |
db88b35c | 2963 | if (group && ovs_refcount_unref_relaxed(&group->ref_count) == 1) { |
fe59694b | 2964 | ovs_assert(rule_collection_n(&group->rules) == 0); |
db88b35c | 2965 | ovsrcu_postpone(group_destroy_cb, group); |
809c7548 RW |
2966 | } |
2967 | } | |
2968 | ||
5d08a275 JR |
2969 | static void |
2970 | remove_group_rcu__(struct ofgroup *group) | |
2971 | OVS_REQUIRES(ofproto_mutex) | |
2972 | { | |
2973 | struct ofproto *ofproto = group->ofproto; | |
2974 | ||
2975 | ovs_assert(!versions_visible_in_version(&group->versions, OVS_VERSION_MAX)); | |
2976 | ||
2977 | cmap_remove(&ofproto->groups, &group->cmap_node, | |
2978 | hash_int(group->group_id, 0)); | |
2979 | ofproto_group_unref(group); | |
2980 | } | |
2981 | ||
2982 | static void | |
2983 | remove_group_rcu(struct ofgroup *group) | |
2984 | OVS_EXCLUDED(ofproto_mutex) | |
2985 | { | |
2986 | ovs_mutex_lock(&ofproto_mutex); | |
2987 | remove_group_rcu__(group); | |
2988 | ovs_mutex_unlock(&ofproto_mutex); | |
2989 | } | |
2990 | ||
2991 | /* Removes and deletes groups from a NULL-terminated array of group | |
2992 | * pointers. */ | |
2993 | static void | |
2994 | remove_groups_rcu(struct ofgroup **groups) | |
2995 | OVS_EXCLUDED(ofproto_mutex) | |
2996 | { | |
2997 | ovs_mutex_lock(&ofproto_mutex); | |
2998 | for (struct ofgroup **g = groups; *g; g++) { | |
2999 | remove_group_rcu__(*g); | |
3000 | } | |
3001 | ovs_mutex_unlock(&ofproto_mutex); | |
3002 | free(groups); | |
3003 | } | |
3004 | ||
65efd2ab JR |
3005 | static uint32_t get_provider_meter_id(const struct ofproto *, |
3006 | uint32_t of_meter_id); | |
3007 | ||
dc723c44 JR |
3008 | /* Creates and returns a new 'struct rule_actions', whose actions are a copy |
3009 | * of from the 'ofpacts_len' bytes of 'ofpacts'. */ | |
3010 | const struct rule_actions * | |
4c7562c5 | 3011 | rule_actions_create(const struct ofpact *ofpacts, size_t ofpacts_len) |
6f00e29b BP |
3012 | { |
3013 | struct rule_actions *actions; | |
3014 | ||
dc723c44 | 3015 | actions = xmalloc(sizeof *actions + ofpacts_len); |
6f00e29b | 3016 | actions->ofpacts_len = ofpacts_len; |
dc723c44 | 3017 | memcpy(actions->ofpacts, ofpacts, ofpacts_len); |
cc099268 JR |
3018 | actions->has_meter = ofpacts_get_meter(ofpacts, ofpacts_len) != 0; |
3019 | actions->has_groups = | |
3020 | (ofpact_find_type_flattened(ofpacts, OFPACT_GROUP, | |
3021 | ofpact_end(ofpacts, ofpacts_len)) | |
3022 | != NULL); | |
35f48b8b BP |
3023 | actions->has_learn_with_delete = (next_learn_with_delete(actions, NULL) |
3024 | != NULL); | |
3025 | ||
6f00e29b BP |
3026 | return actions; |
3027 | } | |
3028 | ||
dc723c44 | 3029 | /* Free the actions after the RCU quiescent period is reached. */ |
6f00e29b | 3030 | void |
dc723c44 | 3031 | rule_actions_destroy(const struct rule_actions *actions) |
6f00e29b | 3032 | { |
06a0f3e2 | 3033 | if (actions) { |
dc723c44 | 3034 | ovsrcu_postpone(free, CONST_CAST(struct rule_actions *, actions)); |
6f00e29b BP |
3035 | } |
3036 | } | |
3037 | ||
bcf84111 | 3038 | /* Returns true if 'rule' has an OpenFlow OFPAT_OUTPUT or OFPAT_ENQUEUE action |
f25d0cf3 | 3039 | * that outputs to 'port' (output to OFPP_FLOOD and OFPP_ALL doesn't count). */ |
cdbdeeda | 3040 | bool |
4e022ec0 | 3041 | ofproto_rule_has_out_port(const struct rule *rule, ofp_port_t port) |
15aaf599 | 3042 | OVS_REQUIRES(ofproto_mutex) |
064af421 | 3043 | { |
06a0f3e2 BP |
3044 | if (port == OFPP_ANY) { |
3045 | return true; | |
3046 | } else { | |
3047 | const struct rule_actions *actions = rule_get_actions(rule); | |
3048 | return ofpacts_output_to_port(actions->ofpacts, | |
3049 | actions->ofpacts_len, port); | |
3050 | } | |
064af421 BP |
3051 | } |
3052 | ||
7395c052 | 3053 | /* Returns true if 'rule' has group and equals group_id. */ |
74e79b7c | 3054 | static bool |
7395c052 | 3055 | ofproto_rule_has_out_group(const struct rule *rule, uint32_t group_id) |
15aaf599 | 3056 | OVS_REQUIRES(ofproto_mutex) |
7395c052 | 3057 | { |
06a0f3e2 BP |
3058 | if (group_id == OFPG_ANY) { |
3059 | return true; | |
3060 | } else { | |
3061 | const struct rule_actions *actions = rule_get_actions(rule); | |
3062 | return ofpacts_output_to_group(actions->ofpacts, | |
3063 | actions->ofpacts_len, group_id); | |
3064 | } | |
7395c052 NZ |
3065 | } |
3066 | ||
adcf00ba | 3067 | static bool |
834fe5cb | 3068 | rule_is_readonly(const struct rule *rule) |
5c67e4af | 3069 | { |
834fe5cb BP |
3070 | const struct oftable *table = &rule->ofproto->tables[rule->table_id]; |
3071 | return (table->flags & OFTABLE_READONLY) != 0; | |
5c67e4af | 3072 | } |
fa066f01 | 3073 | \f |
35f48b8b BP |
3074 | static uint32_t |
3075 | hash_learned_cookie(ovs_be64 cookie_, uint8_t table_id) | |
3076 | { | |
3077 | uint64_t cookie = (OVS_FORCE uint64_t) cookie_; | |
3078 | return hash_3words(cookie, cookie >> 32, table_id); | |
3079 | } | |
3080 | ||
3081 | static void | |
3082 | learned_cookies_update_one__(struct ofproto *ofproto, | |
3083 | const struct ofpact_learn *learn, | |
ca6ba700 | 3084 | int delta, struct ovs_list *dead_cookies) |
35f48b8b BP |
3085 | OVS_REQUIRES(ofproto_mutex) |
3086 | { | |
3087 | uint32_t hash = hash_learned_cookie(learn->cookie, learn->table_id); | |
3088 | struct learned_cookie *c; | |
3089 | ||
3090 | HMAP_FOR_EACH_WITH_HASH (c, u.hmap_node, hash, &ofproto->learned_cookies) { | |
3091 | if (c->cookie == learn->cookie && c->table_id == learn->table_id) { | |
3092 | c->n += delta; | |
3093 | ovs_assert(c->n >= 0); | |
3094 | ||
3095 | if (!c->n) { | |
3096 | hmap_remove(&ofproto->learned_cookies, &c->u.hmap_node); | |
417e7e66 | 3097 | ovs_list_push_back(dead_cookies, &c->u.list_node); |
35f48b8b BP |
3098 | } |
3099 | ||
3100 | return; | |
3101 | } | |
3102 | } | |
3103 | ||
3104 | ovs_assert(delta > 0); | |
3105 | c = xmalloc(sizeof *c); | |
3106 | hmap_insert(&ofproto->learned_cookies, &c->u.hmap_node, hash); | |
3107 | c->cookie = learn->cookie; | |
3108 | c->table_id = learn->table_id; | |
3109 | c->n = delta; | |
3110 | } | |
3111 | ||
3112 | static const struct ofpact_learn * | |
3113 | next_learn_with_delete(const struct rule_actions *actions, | |
3114 | const struct ofpact_learn *start) | |
3115 | { | |
3116 | const struct ofpact *pos; | |
3117 | ||
3118 | for (pos = start ? ofpact_next(&start->ofpact) : actions->ofpacts; | |
3119 | pos < ofpact_end(actions->ofpacts, actions->ofpacts_len); | |
3120 | pos = ofpact_next(pos)) { | |
3121 | if (pos->type == OFPACT_LEARN) { | |
3122 | const struct ofpact_learn *learn = ofpact_get_LEARN(pos); | |
3123 | if (learn->flags & NX_LEARN_F_DELETE_LEARNED) { | |
3124 | return learn; | |
3125 | } | |
3126 | } | |
3127 | } | |
3128 | ||
3129 | return NULL; | |
3130 | } | |
3131 | ||
3132 | static void | |
3133 | learned_cookies_update__(struct ofproto *ofproto, | |
3134 | const struct rule_actions *actions, | |
ca6ba700 | 3135 | int delta, struct ovs_list *dead_cookies) |
35f48b8b BP |
3136 | OVS_REQUIRES(ofproto_mutex) |
3137 | { | |
3138 | if (actions->has_learn_with_delete) { | |
3139 | const struct ofpact_learn *learn; | |
3140 | ||
3141 | for (learn = next_learn_with_delete(actions, NULL); learn; | |
3142 | learn = next_learn_with_delete(actions, learn)) { | |
3143 | learned_cookies_update_one__(ofproto, learn, delta, dead_cookies); | |
3144 | } | |
3145 | } | |
3146 | } | |
3147 | ||
3148 | static void | |
3149 | learned_cookies_inc(struct ofproto *ofproto, | |
3150 | const struct rule_actions *actions) | |
3151 | OVS_REQUIRES(ofproto_mutex) | |
3152 | { | |
3153 | learned_cookies_update__(ofproto, actions, +1, NULL); | |
3154 | } | |
3155 | ||
3156 | static void | |
3157 | learned_cookies_dec(struct ofproto *ofproto, | |
3158 | const struct rule_actions *actions, | |
ca6ba700 | 3159 | struct ovs_list *dead_cookies) |
35f48b8b BP |
3160 | OVS_REQUIRES(ofproto_mutex) |
3161 | { | |
3162 | learned_cookies_update__(ofproto, actions, -1, dead_cookies); | |
3163 | } | |
3164 | ||
3165 | static void | |
ca6ba700 | 3166 | learned_cookies_flush(struct ofproto *ofproto, struct ovs_list *dead_cookies) |
35f48b8b BP |
3167 | OVS_REQUIRES(ofproto_mutex) |
3168 | { | |
5f03c983 | 3169 | struct learned_cookie *c; |
35f48b8b | 3170 | |
5f03c983 | 3171 | LIST_FOR_EACH_POP (c, u.list_node, dead_cookies) { |
35f48b8b BP |
3172 | struct rule_criteria criteria; |
3173 | struct rule_collection rules; | |
3174 | struct match match; | |
3175 | ||
3176 | match_init_catchall(&match); | |
44e0c35d | 3177 | rule_criteria_init(&criteria, c->table_id, &match, 0, OVS_VERSION_MAX, |
35f48b8b BP |
3178 | c->cookie, OVS_BE64_MAX, OFPP_ANY, OFPG_ANY); |
3179 | rule_criteria_require_rw(&criteria, false); | |
3180 | collect_rules_loose(ofproto, &criteria, &rules); | |
35f48b8b | 3181 | rule_criteria_destroy(&criteria); |
39c94593 | 3182 | delete_flows__(&rules, OFPRR_DELETE, NULL); |
35f48b8b | 3183 | |
35f48b8b BP |
3184 | free(c); |
3185 | } | |
3186 | } | |
3187 | \f | |
90bf1e07 | 3188 | static enum ofperr |
d1e2cf21 | 3189 | handle_echo_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3190 | { |
b0421aa2 | 3191 | ofconn_send_reply(ofconn, make_echo_reply(oh)); |
064af421 | 3192 | return 0; |
064af421 BP |
3193 | } |
3194 | ||
3c1bb396 BP |
3195 | static void |
3196 | query_tables(struct ofproto *ofproto, | |
3197 | struct ofputil_table_features **featuresp, | |
3198 | struct ofputil_table_stats **statsp) | |
3199 | { | |
178742f9 BP |
3200 | struct mf_bitmap rw_fields = oxm_writable_fields(); |
3201 | struct mf_bitmap match = oxm_matchable_fields(); | |
3202 | struct mf_bitmap mask = oxm_maskable_fields(); | |
3c1bb396 BP |
3203 | |
3204 | struct ofputil_table_features *features; | |
3205 | struct ofputil_table_stats *stats; | |
3206 | int i; | |
3207 | ||
3c1bb396 BP |
3208 | features = *featuresp = xcalloc(ofproto->n_tables, sizeof *features); |
3209 | for (i = 0; i < ofproto->n_tables; i++) { | |
3210 | struct ofputil_table_features *f = &features[i]; | |
3211 | ||
3212 | f->table_id = i; | |
3213 | sprintf(f->name, "table%d", i); | |
3214 | f->metadata_match = OVS_BE64_MAX; | |
3215 | f->metadata_write = OVS_BE64_MAX; | |
afcea9ea | 3216 | atomic_read_relaxed(&ofproto->tables[i].miss_config, &f->miss_config); |
3c1bb396 BP |
3217 | f->max_entries = 1000000; |
3218 | ||
5dc7516b BP |
3219 | bool more_tables = false; |
3220 | for (int j = i + 1; j < ofproto->n_tables; j++) { | |
3221 | if (!(ofproto->tables[j].flags & OFTABLE_HIDDEN)) { | |
3222 | bitmap_set1(f->nonmiss.next, j); | |
3223 | more_tables = true; | |
3224 | } | |
3225 | } | |
3c1bb396 | 3226 | f->nonmiss.instructions = (1u << N_OVS_INSTRUCTIONS) - 1; |
5dc7516b | 3227 | if (!more_tables) { |
3c1bb396 BP |
3228 | f->nonmiss.instructions &= ~(1u << OVSINST_OFPIT11_GOTO_TABLE); |
3229 | } | |
3230 | f->nonmiss.write.ofpacts = (UINT64_C(1) << N_OFPACTS) - 1; | |
3231 | f->nonmiss.write.set_fields = rw_fields; | |
3232 | f->nonmiss.apply = f->nonmiss.write; | |
3233 | f->miss = f->nonmiss; | |
3234 | ||
3235 | f->match = match; | |
3236 | f->mask = mask; | |
3237 | f->wildcard = match; | |
3238 | } | |
3239 | ||
3240 | if (statsp) { | |
3241 | stats = *statsp = xcalloc(ofproto->n_tables, sizeof *stats); | |
3242 | for (i = 0; i < ofproto->n_tables; i++) { | |
3243 | struct ofputil_table_stats *s = &stats[i]; | |
3c1bb396 BP |
3244 | |
3245 | s->table_id = i; | |
d79e3d70 | 3246 | s->active_count = ofproto->tables[i].n_flows; |
3fbbcba7 BP |
3247 | if (i == 0) { |
3248 | s->active_count -= connmgr_count_hidden_rules( | |
3249 | ofproto->connmgr); | |
3250 | } | |
3c1bb396 BP |
3251 | } |
3252 | } else { | |
3253 | stats = NULL; | |
3254 | } | |
3255 | ||
3256 | ofproto->ofproto_class->query_tables(ofproto, features, stats); | |
3257 | ||
3258 | for (i = 0; i < ofproto->n_tables; i++) { | |
3259 | const struct oftable *table = &ofproto->tables[i]; | |
3260 | struct ofputil_table_features *f = &features[i]; | |
3261 | ||
3262 | if (table->name) { | |
3263 | ovs_strzcpy(f->name, table->name, sizeof f->name); | |
3264 | } | |
3265 | ||
3266 | if (table->max_flows < f->max_entries) { | |
3267 | f->max_entries = table->max_flows; | |
3268 | } | |
3269 | } | |
3270 | } | |
3271 | ||
3272 | static void | |
3273 | query_switch_features(struct ofproto *ofproto, | |
3274 | bool *arp_match_ip, uint64_t *ofpacts) | |
3275 | { | |
3276 | struct ofputil_table_features *features, *f; | |
3277 | ||
3278 | *arp_match_ip = false; | |
3279 | *ofpacts = 0; | |
3280 | ||
3281 | query_tables(ofproto, &features, NULL); | |
3282 | for (f = features; f < &features[ofproto->n_tables]; f++) { | |
3283 | *ofpacts |= f->nonmiss.apply.ofpacts | f->miss.apply.ofpacts; | |
3284 | if (bitmap_is_set(f->match.bm, MFF_ARP_SPA) || | |
3285 | bitmap_is_set(f->match.bm, MFF_ARP_TPA)) { | |
3286 | *arp_match_ip = true; | |
3287 | } | |
3288 | } | |
3289 | free(features); | |
3290 | ||
3291 | /* Sanity check. */ | |
3292 | ovs_assert(*ofpacts & (UINT64_C(1) << OFPACT_OUTPUT)); | |
3293 | } | |
3294 | ||
90bf1e07 | 3295 | static enum ofperr |
d1e2cf21 | 3296 | handle_features_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3297 | { |
64ff1d96 | 3298 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
9e1fd49b | 3299 | struct ofputil_switch_features features; |
064af421 | 3300 | struct ofport *port; |
6c1491fb | 3301 | bool arp_match_ip; |
9e1fd49b | 3302 | struct ofpbuf *b; |
064af421 | 3303 | |
3c1bb396 | 3304 | query_switch_features(ofproto, &arp_match_ip, &features.ofpacts); |
064af421 | 3305 | |
9e1fd49b | 3306 | features.datapath_id = ofproto->datapath_id; |
c184807c | 3307 | features.n_buffers = 0; |
adcf00ba | 3308 | features.n_tables = ofproto_get_n_visible_tables(ofproto); |
9e1fd49b | 3309 | features.capabilities = (OFPUTIL_C_FLOW_STATS | OFPUTIL_C_TABLE_STATS | |
4efe455d BP |
3310 | OFPUTIL_C_PORT_STATS | OFPUTIL_C_QUEUE_STATS | |
3311 | OFPUTIL_C_GROUP_STATS); | |
6c1491fb | 3312 | if (arp_match_ip) { |
9e1fd49b | 3313 | features.capabilities |= OFPUTIL_C_ARP_MATCH_IP; |
6c1491fb | 3314 | } |
2e1ae200 JR |
3315 | /* FIXME: Fill in proper features.auxiliary_id for auxiliary connections */ |
3316 | features.auxiliary_id = 0; | |
9e1fd49b BP |
3317 | b = ofputil_encode_switch_features(&features, ofconn_get_protocol(ofconn), |
3318 | oh->xid); | |
64ff1d96 | 3319 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
9e1fd49b | 3320 | ofputil_put_switch_features_port(&port->pp, b); |
064af421 | 3321 | } |
064af421 | 3322 | |
9e1fd49b | 3323 | ofconn_send_reply(ofconn, b); |
064af421 BP |
3324 | return 0; |
3325 | } | |
064af421 | 3326 | |
90bf1e07 | 3327 | static enum ofperr |
d1e2cf21 | 3328 | handle_get_config_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3329 | { |
ad99e2ed BP |
3330 | struct ofputil_switch_config config; |
3331 | config.frag = ofconn_get_ofproto(ofconn)->frag_handling; | |
3332 | config.invalid_ttl_to_controller | |
3333 | = ofconn_get_invalid_ttl_to_controller(ofconn); | |
3334 | config.miss_send_len = ofconn_get_miss_send_len(ofconn); | |
3335 | ||
3336 | ofconn_send_reply(ofconn, ofputil_encode_get_config_reply(oh, &config)); | |
2d70a31a | 3337 | |
064af421 BP |
3338 | return 0; |
3339 | } | |
064af421 | 3340 | |
90bf1e07 | 3341 | static enum ofperr |
982697a4 | 3342 | handle_set_config(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3343 | { |
64ff1d96 | 3344 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
ad99e2ed BP |
3345 | struct ofputil_switch_config config; |
3346 | enum ofperr error; | |
3347 | ||
3348 | error = ofputil_decode_set_config(oh, &config); | |
3349 | if (error) { | |
3350 | return error; | |
3351 | } | |
2d70a31a | 3352 | |
7257b535 | 3353 | if (ofconn_get_type(ofconn) != OFCONN_PRIMARY |
f4f1ea7e | 3354 | || ofconn_get_role(ofconn) != OFPCR12_ROLE_SLAVE) { |
ad99e2ed BP |
3355 | enum ofputil_frag_handling cur = ofproto->frag_handling; |
3356 | enum ofputil_frag_handling next = config.frag; | |
7257b535 | 3357 | |
7257b535 BP |
3358 | if (cur != next) { |
3359 | if (ofproto->ofproto_class->set_frag_handling(ofproto, next)) { | |
3360 | ofproto->frag_handling = next; | |
3361 | } else { | |
3362 | VLOG_WARN_RL(&rl, "%s: unsupported fragment handling mode %s", | |
3363 | ofproto->name, | |
3364 | ofputil_frag_handling_to_string(next)); | |
3365 | } | |
064af421 BP |
3366 | } |
3367 | } | |
ebe482fd | 3368 | |
ad99e2ed BP |
3369 | if (config.invalid_ttl_to_controller >= 0) { |
3370 | ofconn_set_invalid_ttl_to_controller(ofconn, | |
3371 | config.invalid_ttl_to_controller); | |
3372 | } | |
3373 | ||
3374 | ofconn_set_miss_send_len(ofconn, config.miss_send_len); | |
0ad9b732 | 3375 | |
064af421 | 3376 | return 0; |
064af421 BP |
3377 | } |
3378 | ||
9deba63b | 3379 | /* Checks whether 'ofconn' is a slave controller. If so, returns an OpenFlow |
90bf1e07 BP |
3380 | * error message code for the caller to propagate upward. Otherwise, returns |
3381 | * 0. | |
3382 | * | |
3383 | * The log message mentions 'msg_type'. */ | |
3384 | static enum ofperr | |
3385 | reject_slave_controller(struct ofconn *ofconn) | |
9deba63b | 3386 | { |
1ce0a5fa | 3387 | if (ofconn_get_type(ofconn) == OFCONN_PRIMARY |
f4f1ea7e | 3388 | && ofconn_get_role(ofconn) == OFPCR12_ROLE_SLAVE) { |
20e4ec1a | 3389 | return OFPERR_OFPBRC_IS_SLAVE; |
9deba63b BP |
3390 | } else { |
3391 | return 0; | |
3392 | } | |
3393 | } | |
3394 | ||
7e9f8266 BP |
3395 | /* Checks that the 'ofpacts_len' bytes of action in 'ofpacts' are appropriate |
3396 | * for 'ofproto': | |
3397 | * | |
3398 | * - If they use a meter, then 'ofproto' has that meter configured. | |
3399 | * | |
3400 | * - If they use any groups, then 'ofproto' has that group configured. | |
3401 | * | |
3402 | * Returns 0 if successful, otherwise an OpenFlow error. */ | |
89108874 | 3403 | enum ofperr |
9cae45dc | 3404 | ofproto_check_ofpacts(struct ofproto *ofproto, |
7e9f8266 | 3405 | const struct ofpact ofpacts[], size_t ofpacts_len) |
9cae45dc | 3406 | { |
9cae45dc JR |
3407 | uint32_t mid; |
3408 | ||
7e9f8266 BP |
3409 | mid = ofpacts_get_meter(ofpacts, ofpacts_len); |
3410 | if (mid && get_provider_meter_id(ofproto, mid) == UINT32_MAX) { | |
3411 | return OFPERR_OFPMMFC_INVALID_METER; | |
9cae45dc JR |
3412 | } |
3413 | ||
cc099268 JR |
3414 | const struct ofpact_group *a; |
3415 | OFPACT_FOR_EACH_TYPE_FLATTENED (a, GROUP, ofpacts, ofpacts_len) { | |
3416 | if (!ofproto_group_exists(ofproto, a->group_id)) { | |
7e9f8266 | 3417 | return OFPERR_OFPBAC_BAD_OUT_GROUP; |
84d68566 SH |
3418 | } |
3419 | } | |
3420 | ||
9cae45dc JR |
3421 | return 0; |
3422 | } | |
3423 | ||
90bf1e07 | 3424 | static enum ofperr |
982697a4 | 3425 | handle_packet_out(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3426 | { |
64ff1d96 | 3427 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
c6a93eb7 | 3428 | struct ofputil_packet_out po; |
cf62fa4c | 3429 | struct dp_packet *payload; |
f25d0cf3 BP |
3430 | uint64_t ofpacts_stub[1024 / 8]; |
3431 | struct ofpbuf ofpacts; | |
ae412e7d | 3432 | struct flow flow; |
90bf1e07 | 3433 | enum ofperr error; |
064af421 | 3434 | |
ac51afaf BP |
3435 | COVERAGE_INC(ofproto_packet_out); |
3436 | ||
76589937 | 3437 | error = reject_slave_controller(ofconn); |
9deba63b | 3438 | if (error) { |
f25d0cf3 | 3439 | goto exit; |
9deba63b BP |
3440 | } |
3441 | ||
c6a93eb7 | 3442 | /* Decode message. */ |
f25d0cf3 | 3443 | ofpbuf_use_stub(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); |
982697a4 | 3444 | error = ofputil_decode_packet_out(&po, oh, &ofpacts); |
064af421 | 3445 | if (error) { |
f25d0cf3 | 3446 | goto exit_free_ofpacts; |
064af421 | 3447 | } |
430dbb14 | 3448 | if (ofp_to_u16(po.in_port) >= p->max_ports |
4e022ec0 | 3449 | && ofp_to_u16(po.in_port) < ofp_to_u16(OFPP_MAX)) { |
2e1bfcb6 | 3450 | error = OFPERR_OFPBRC_BAD_PORT; |
91858960 BP |
3451 | goto exit_free_ofpacts; |
3452 | } | |
064af421 | 3453 | |
ac51afaf | 3454 | /* Get payload. */ |
c6a93eb7 | 3455 | if (po.buffer_id != UINT32_MAX) { |
c184807c JR |
3456 | error = OFPERR_OFPBRC_BUFFER_UNKNOWN; |
3457 | goto exit_free_ofpacts; | |
e1154f71 | 3458 | } |
c184807c JR |
3459 | /* Ensure that the L3 header is 32-bit aligned. */ |
3460 | payload = dp_packet_clone_data_with_headroom(po.packet, po.packet_len, 2); | |
e1154f71 | 3461 | |
548de4dd | 3462 | /* Verify actions against packet, then send packet if successful. */ |
cf62fa4c | 3463 | flow_extract(payload, &flow); |
b5e7e61a | 3464 | flow.in_port.ofp_port = po.in_port; |
89108874 JR |
3465 | |
3466 | /* Check actions like for flow mods. We pass a 'table_id' of 0 to | |
3467 | * ofproto_check_consistency(), which isn't strictly correct because these | |
3468 | * actions aren't in any table. This is OK as 'table_id' is only used to | |
3469 | * check instructions (e.g., goto-table), which can't appear on the action | |
3470 | * list of a packet-out. */ | |
3471 | error = ofpacts_check_consistency(po.ofpacts, po.ofpacts_len, | |
3472 | &flow, u16_to_ofp(p->max_ports), | |
3473 | 0, p->n_tables, | |
3474 | ofconn_get_protocol(ofconn)); | |
548de4dd | 3475 | if (!error) { |
cc099268 JR |
3476 | /* Should hold ofproto_mutex to guarantee state don't |
3477 | * change between the check and the execution. */ | |
89108874 JR |
3478 | error = ofproto_check_ofpacts(p, po.ofpacts, po.ofpacts_len); |
3479 | if (!error) { | |
3480 | error = p->ofproto_class->packet_out(p, payload, &flow, | |
3481 | po.ofpacts, po.ofpacts_len); | |
3482 | } | |
548de4dd | 3483 | } |
cf62fa4c | 3484 | dp_packet_delete(payload); |
abe529af | 3485 | |
f25d0cf3 BP |
3486 | exit_free_ofpacts: |
3487 | ofpbuf_uninit(&ofpacts); | |
3488 | exit: | |
abe529af | 3489 | return error; |
064af421 BP |
3490 | } |
3491 | ||
77ab5fd2 BP |
3492 | static enum ofperr |
3493 | handle_nxt_resume(struct ofconn *ofconn, const struct ofp_header *oh) | |
3494 | { | |
3495 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
3496 | struct ofputil_packet_in_private pin; | |
3497 | enum ofperr error; | |
3498 | ||
3499 | error = ofputil_decode_packet_in_private(oh, false, &pin, NULL, NULL); | |
3500 | if (error) { | |
3501 | return error; | |
3502 | } | |
3503 | ||
3504 | error = (ofproto->ofproto_class->nxt_resume | |
3505 | ? ofproto->ofproto_class->nxt_resume(ofproto, &pin) | |
3506 | : OFPERR_NXR_NOT_SUPPORTED); | |
3507 | ||
3508 | ofputil_packet_in_private_destroy(&pin); | |
3509 | ||
3510 | return error; | |
3511 | } | |
3512 | ||
064af421 | 3513 | static void |
2a6f78e0 | 3514 | update_port_config(struct ofconn *ofconn, struct ofport *port, |
9e1fd49b BP |
3515 | enum ofputil_port_config config, |
3516 | enum ofputil_port_config mask) | |
064af421 | 3517 | { |
2a6f78e0 | 3518 | enum ofputil_port_config toggle = (config ^ port->pp.config) & mask; |
abe529af | 3519 | |
2a6f78e0 BP |
3520 | if (toggle & OFPUTIL_PC_PORT_DOWN |
3521 | && (config & OFPUTIL_PC_PORT_DOWN | |
3522 | ? netdev_turn_flags_off(port->netdev, NETDEV_UP, NULL) | |
3523 | : netdev_turn_flags_on(port->netdev, NETDEV_UP, NULL))) { | |
3524 | /* We tried to bring the port up or down, but it failed, so don't | |
3525 | * update the "down" bit. */ | |
9e1fd49b | 3526 | toggle &= ~OFPUTIL_PC_PORT_DOWN; |
064af421 | 3527 | } |
abe529af | 3528 | |
2a6f78e0 BP |
3529 | if (toggle) { |
3530 | enum ofputil_port_config old_config = port->pp.config; | |
3531 | port->pp.config ^= toggle; | |
abe529af | 3532 | port->ofproto->ofproto_class->port_reconfigured(port, old_config); |
2a6f78e0 BP |
3533 | connmgr_send_port_status(port->ofproto->connmgr, ofconn, &port->pp, |
3534 | OFPPR_MODIFY); | |
064af421 BP |
3535 | } |
3536 | } | |
3537 | ||
90bf1e07 | 3538 | static enum ofperr |
1c38055d JR |
3539 | port_mod_start(struct ofconn *ofconn, struct ofputil_port_mod *pm, |
3540 | struct ofport **port) | |
064af421 | 3541 | { |
64ff1d96 | 3542 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
1c38055d JR |
3543 | |
3544 | *port = ofproto_get_port(p, pm->port_no); | |
3545 | if (!*port) { | |
3546 | return OFPERR_OFPPMFC_BAD_PORT; | |
3547 | } | |
3548 | if (!eth_addr_equals((*port)->pp.hw_addr, pm->hw_addr)) { | |
3549 | return OFPERR_OFPPMFC_BAD_HW_ADDR; | |
3550 | } | |
3551 | return 0; | |
3552 | } | |
3553 | ||
3554 | static void | |
3555 | port_mod_finish(struct ofconn *ofconn, struct ofputil_port_mod *pm, | |
3556 | struct ofport *port) | |
3557 | { | |
3558 | update_port_config(ofconn, port, pm->config, pm->mask); | |
3559 | if (pm->advertise) { | |
3560 | netdev_set_advertisements(port->netdev, pm->advertise); | |
3561 | } | |
3562 | } | |
3563 | ||
3564 | static enum ofperr | |
3565 | handle_port_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
3566 | { | |
9e1fd49b | 3567 | struct ofputil_port_mod pm; |
064af421 | 3568 | struct ofport *port; |
9e1fd49b | 3569 | enum ofperr error; |
064af421 | 3570 | |
76589937 | 3571 | error = reject_slave_controller(ofconn); |
9deba63b BP |
3572 | if (error) { |
3573 | return error; | |
3574 | } | |
064af421 | 3575 | |
18cc69d9 | 3576 | error = ofputil_decode_port_mod(oh, &pm, false); |
9e1fd49b BP |
3577 | if (error) { |
3578 | return error; | |
3579 | } | |
3580 | ||
1c38055d JR |
3581 | error = port_mod_start(ofconn, &pm, &port); |
3582 | if (!error) { | |
3583 | port_mod_finish(ofconn, &pm, port); | |
064af421 | 3584 | } |
1c38055d | 3585 | return error; |
064af421 BP |
3586 | } |
3587 | ||
90bf1e07 | 3588 | static enum ofperr |
3269c562 | 3589 | handle_desc_stats_request(struct ofconn *ofconn, |
982697a4 | 3590 | const struct ofp_header *request) |
064af421 | 3591 | { |
061bfea4 BP |
3592 | static const char *default_mfr_desc = "Nicira, Inc."; |
3593 | static const char *default_hw_desc = "Open vSwitch"; | |
3594 | static const char *default_sw_desc = VERSION; | |
3595 | static const char *default_serial_desc = "None"; | |
3596 | static const char *default_dp_desc = "None"; | |
3597 | ||
64ff1d96 | 3598 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 BP |
3599 | struct ofp_desc_stats *ods; |
3600 | struct ofpbuf *msg; | |
3601 | ||
982697a4 BP |
3602 | msg = ofpraw_alloc_stats_reply(request, 0); |
3603 | ods = ofpbuf_put_zeros(msg, sizeof *ods); | |
061bfea4 BP |
3604 | ovs_strlcpy(ods->mfr_desc, p->mfr_desc ? p->mfr_desc : default_mfr_desc, |
3605 | sizeof ods->mfr_desc); | |
3606 | ovs_strlcpy(ods->hw_desc, p->hw_desc ? p->hw_desc : default_hw_desc, | |
3607 | sizeof ods->hw_desc); | |
3608 | ovs_strlcpy(ods->sw_desc, p->sw_desc ? p->sw_desc : default_sw_desc, | |
3609 | sizeof ods->sw_desc); | |
3610 | ovs_strlcpy(ods->serial_num, | |
3611 | p->serial_desc ? p->serial_desc : default_serial_desc, | |
3612 | sizeof ods->serial_num); | |
3613 | ovs_strlcpy(ods->dp_desc, p->dp_desc ? p->dp_desc : default_dp_desc, | |
3614 | sizeof ods->dp_desc); | |
b0421aa2 | 3615 | ofconn_send_reply(ofconn, msg); |
064af421 BP |
3616 | |
3617 | return 0; | |
3618 | } | |
3619 | ||
90bf1e07 | 3620 | static enum ofperr |
3269c562 | 3621 | handle_table_stats_request(struct ofconn *ofconn, |
982697a4 | 3622 | const struct ofp_header *request) |
064af421 | 3623 | { |
3c1bb396 BP |
3624 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
3625 | struct ofputil_table_features *features; | |
08d1e234 | 3626 | struct ofputil_table_stats *stats; |
3c1bb396 | 3627 | struct ofpbuf *reply; |
6c1491fb | 3628 | size_t i; |
064af421 | 3629 | |
3c1bb396 | 3630 | query_tables(ofproto, &features, &stats); |
254750ce | 3631 | |
3c1bb396 BP |
3632 | reply = ofputil_encode_table_stats_reply(request); |
3633 | for (i = 0; i < ofproto->n_tables; i++) { | |
3634 | if (!(ofproto->tables[i].flags & OFTABLE_HIDDEN)) { | |
3635 | ofputil_append_table_stats_reply(reply, &stats[i], &features[i]); | |
254750ce BP |
3636 | } |
3637 | } | |
3c1bb396 | 3638 | ofconn_send_reply(ofconn, reply); |
254750ce | 3639 | |
3c1bb396 | 3640 | free(features); |
08d1e234 | 3641 | free(stats); |
307975da | 3642 | |
064af421 BP |
3643 | return 0; |
3644 | } | |
3645 | ||
3c4e10fb BP |
3646 | static enum ofperr |
3647 | handle_table_features_request(struct ofconn *ofconn, | |
3648 | const struct ofp_header *request) | |
3649 | { | |
3650 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
0a2869d5 BP |
3651 | struct ofpbuf msg = ofpbuf_const_initializer(request, |
3652 | ntohs(request->length)); | |
3c4e10fb | 3653 | ofpraw_pull_assert(&msg); |
6fd6ed71 | 3654 | if (msg.size || ofpmp_more(request)) { |
3c4e10fb BP |
3655 | return OFPERR_OFPTFFC_EPERM; |
3656 | } | |
3657 | ||
0a2869d5 | 3658 | struct ofputil_table_features *features; |
3c4e10fb BP |
3659 | query_tables(ofproto, &features, NULL); |
3660 | ||
0a2869d5 | 3661 | struct ovs_list replies; |
3c4e10fb | 3662 | ofpmp_init(&replies, request); |
0a2869d5 | 3663 | for (size_t i = 0; i < ofproto->n_tables; i++) { |
3c4e10fb BP |
3664 | if (!(ofproto->tables[i].flags & OFTABLE_HIDDEN)) { |
3665 | ofputil_append_table_features_reply(&features[i], &replies); | |
3666 | } | |
3667 | } | |
3668 | ofconn_send_replies(ofconn, &replies); | |
3669 | ||
3670 | free(features); | |
3671 | ||
3672 | return 0; | |
3673 | } | |
3674 | ||
6c6eedc5 SJ |
3675 | /* Returns the vacancy of 'oftable', a number that ranges from 0 (if the table |
3676 | * is full) to 100 (if the table is empty). | |
3677 | * | |
3678 | * A table without a limit on flows is considered to be empty. */ | |
3679 | static uint8_t | |
3680 | oftable_vacancy(const struct oftable *t) | |
3681 | { | |
3682 | return (!t->max_flows ? 100 | |
3683 | : t->n_flows >= t->max_flows ? 0 | |
3684 | : (t->max_flows - t->n_flows) * 100.0 / t->max_flows); | |
3685 | } | |
3686 | ||
bab86012 SJ |
3687 | static void |
3688 | query_table_desc__(struct ofputil_table_desc *td, | |
3689 | struct ofproto *ofproto, uint8_t table_id) | |
3690 | { | |
6c6eedc5 | 3691 | const struct oftable *t = &ofproto->tables[table_id]; |
bab86012 SJ |
3692 | |
3693 | td->table_id = table_id; | |
6c6eedc5 | 3694 | td->eviction = (t->eviction & EVICTION_OPENFLOW |
bab86012 SJ |
3695 | ? OFPUTIL_TABLE_EVICTION_ON |
3696 | : OFPUTIL_TABLE_EVICTION_OFF); | |
3697 | td->eviction_flags = OFPROTO_EVICTION_FLAGS; | |
6c6eedc5 | 3698 | td->vacancy = (t->vacancy_event |
bab86012 SJ |
3699 | ? OFPUTIL_TABLE_VACANCY_ON |
3700 | : OFPUTIL_TABLE_VACANCY_OFF); | |
6c6eedc5 SJ |
3701 | td->table_vacancy.vacancy_down = t->vacancy_down; |
3702 | td->table_vacancy.vacancy_up = t->vacancy_up; | |
3703 | td->table_vacancy.vacancy = oftable_vacancy(t); | |
bab86012 SJ |
3704 | } |
3705 | ||
03c72922 BP |
3706 | /* This function queries the database for dumping table-desc. */ |
3707 | static void | |
3708 | query_tables_desc(struct ofproto *ofproto, struct ofputil_table_desc **descp) | |
3709 | { | |
3710 | struct ofputil_table_desc *table_desc; | |
3711 | size_t i; | |
3712 | ||
3713 | table_desc = *descp = xcalloc(ofproto->n_tables, sizeof *table_desc); | |
3714 | for (i = 0; i < ofproto->n_tables; i++) { | |
3715 | struct ofputil_table_desc *td = &table_desc[i]; | |
bab86012 | 3716 | query_table_desc__(td, ofproto, i); |
03c72922 BP |
3717 | } |
3718 | } | |
3719 | ||
3720 | /* Function to handle dump-table-desc request. */ | |
3721 | static enum ofperr | |
3722 | handle_table_desc_request(struct ofconn *ofconn, | |
3723 | const struct ofp_header *request) | |
3724 | { | |
3725 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
3726 | struct ofputil_table_desc *table_desc; | |
3727 | struct ovs_list replies; | |
3728 | size_t i; | |
3729 | ||
3730 | query_tables_desc(ofproto, &table_desc); | |
3731 | ofpmp_init(&replies, request); | |
3732 | for (i = 0; i < ofproto->n_tables; i++) { | |
3733 | if (!(ofproto->tables[i].flags & OFTABLE_HIDDEN)) { | |
3734 | ofputil_append_table_desc_reply(&table_desc[i], &replies, | |
3735 | request->version); | |
3736 | } | |
3737 | } | |
3738 | ofconn_send_replies(ofconn, &replies); | |
3739 | free(table_desc); | |
3740 | return 0; | |
3741 | } | |
3742 | ||
6c6eedc5 SJ |
3743 | /* This function determines and sends the vacancy event, based on the value |
3744 | * of current vacancy and threshold vacancy. If the current vacancy is less | |
3745 | * than or equal to vacancy_down, vacancy up events must be enabled, and when | |
3746 | * the current vacancy is greater or equal to vacancy_up, vacancy down events | |
3747 | * must be enabled. */ | |
3748 | static void | |
3749 | send_table_status(struct ofproto *ofproto, uint8_t table_id) | |
3750 | { | |
3751 | struct oftable *t = &ofproto->tables[table_id]; | |
3752 | if (!t->vacancy_event) { | |
3753 | return; | |
3754 | } | |
3755 | ||
3756 | uint8_t vacancy = oftable_vacancy(t); | |
3757 | enum ofp14_table_reason event; | |
3758 | if (vacancy < t->vacancy_down) { | |
3759 | event = OFPTR_VACANCY_DOWN; | |
3760 | } else if (vacancy > t->vacancy_up) { | |
3761 | event = OFPTR_VACANCY_UP; | |
3762 | } else { | |
3763 | return; | |
3764 | } | |
3765 | ||
3766 | if (event == t->vacancy_event) { | |
3767 | struct ofputil_table_desc td; | |
3768 | query_table_desc__(&td, ofproto, table_id); | |
3769 | connmgr_send_table_status(ofproto->connmgr, &td, event); | |
3770 | ||
3771 | t->vacancy_event = (event == OFPTR_VACANCY_DOWN | |
3772 | ? OFPTR_VACANCY_UP | |
3773 | : OFPTR_VACANCY_DOWN); | |
3774 | } | |
3775 | } | |
3776 | ||
abaad8cf | 3777 | static void |
ca6ba700 | 3778 | append_port_stat(struct ofport *port, struct ovs_list *replies) |
abaad8cf | 3779 | { |
f8e4867e | 3780 | struct ofputil_port_stats ops = { .port_no = port->pp.port_no }; |
abaad8cf | 3781 | |
65e0be10 BP |
3782 | calc_duration(port->created, time_msec(), |
3783 | &ops.duration_sec, &ops.duration_nsec); | |
3784 | ||
d295e8e9 JP |
3785 | /* Intentionally ignore return value, since errors will set |
3786 | * 'stats' to all-1s, which is correct for OpenFlow, and | |
abaad8cf | 3787 | * netdev_get_stats() will log errors. */ |
f8e4867e SH |
3788 | ofproto_port_get_stats(port, &ops.stats); |
3789 | ||
3790 | ofputil_append_port_stat(replies, &ops); | |
abaad8cf JP |
3791 | } |
3792 | ||
70ae4f93 BP |
3793 | static void |
3794 | handle_port_request(struct ofconn *ofconn, | |
3795 | const struct ofp_header *request, ofp_port_t port_no, | |
ca6ba700 | 3796 | void (*cb)(struct ofport *, struct ovs_list *replies)) |
064af421 | 3797 | { |
70ae4f93 | 3798 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
064af421 | 3799 | struct ofport *port; |
ca6ba700 | 3800 | struct ovs_list replies; |
064af421 | 3801 | |
982697a4 | 3802 | ofpmp_init(&replies, request); |
7f05e7ab | 3803 | if (port_no != OFPP_ANY) { |
70ae4f93 | 3804 | port = ofproto_get_port(ofproto, port_no); |
abaad8cf | 3805 | if (port) { |
70ae4f93 | 3806 | cb(port, &replies); |
abaad8cf JP |
3807 | } |
3808 | } else { | |
70ae4f93 BP |
3809 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
3810 | cb(port, &replies); | |
abaad8cf | 3811 | } |
064af421 BP |
3812 | } |
3813 | ||
63f2140a | 3814 | ofconn_send_replies(ofconn, &replies); |
70ae4f93 BP |
3815 | } |
3816 | ||
3817 | static enum ofperr | |
3818 | handle_port_stats_request(struct ofconn *ofconn, | |
3819 | const struct ofp_header *request) | |
3820 | { | |
3821 | ofp_port_t port_no; | |
3822 | enum ofperr error; | |
3823 | ||
3824 | error = ofputil_decode_port_stats_request(request, &port_no); | |
3825 | if (!error) { | |
3826 | handle_port_request(ofconn, request, port_no, append_port_stat); | |
3827 | } | |
3828 | return error; | |
3829 | } | |
3830 | ||
3831 | static void | |
ca6ba700 | 3832 | append_port_desc(struct ofport *port, struct ovs_list *replies) |
70ae4f93 BP |
3833 | { |
3834 | ofputil_append_port_desc_stats_reply(&port->pp, replies); | |
064af421 BP |
3835 | } |
3836 | ||
2be393ed JP |
3837 | static enum ofperr |
3838 | handle_port_desc_stats_request(struct ofconn *ofconn, | |
982697a4 | 3839 | const struct ofp_header *request) |
2be393ed | 3840 | { |
70ae4f93 BP |
3841 | ofp_port_t port_no; |
3842 | enum ofperr error; | |
2be393ed | 3843 | |
70ae4f93 BP |
3844 | error = ofputil_decode_port_desc_stats_request(request, &port_no); |
3845 | if (!error) { | |
3846 | handle_port_request(ofconn, request, port_no, append_port_desc); | |
2be393ed | 3847 | } |
70ae4f93 | 3848 | return error; |
2be393ed JP |
3849 | } |
3850 | ||
98eaac36 JR |
3851 | static uint32_t |
3852 | hash_cookie(ovs_be64 cookie) | |
3853 | { | |
965607c8 | 3854 | return hash_uint64((OVS_FORCE uint64_t)cookie); |
98eaac36 JR |
3855 | } |
3856 | ||
3857 | static void | |
3858 | cookies_insert(struct ofproto *ofproto, struct rule *rule) | |
2c916028 | 3859 | OVS_REQUIRES(ofproto_mutex) |
98eaac36 JR |
3860 | { |
3861 | hindex_insert(&ofproto->cookies, &rule->cookie_node, | |
3862 | hash_cookie(rule->flow_cookie)); | |
3863 | } | |
3864 | ||
3865 | static void | |
3866 | cookies_remove(struct ofproto *ofproto, struct rule *rule) | |
2c916028 | 3867 | OVS_REQUIRES(ofproto_mutex) |
98eaac36 JR |
3868 | { |
3869 | hindex_remove(&ofproto->cookies, &rule->cookie_node); | |
3870 | } | |
3871 | ||
c6ebb8fb | 3872 | static void |
65e0be10 BP |
3873 | calc_duration(long long int start, long long int now, |
3874 | uint32_t *sec, uint32_t *nsec) | |
c6ebb8fb | 3875 | { |
f27f2134 | 3876 | long long int msecs = now - start; |
588cd7b5 BP |
3877 | *sec = msecs / 1000; |
3878 | *nsec = (msecs % 1000) * (1000 * 1000); | |
3879 | } | |
3880 | ||
48266274 | 3881 | /* Checks whether 'table_id' is 0xff or a valid table ID in 'ofproto'. Returns |
554764d1 SH |
3882 | * true if 'table_id' is OK, false otherwise. */ |
3883 | static bool | |
48266274 BP |
3884 | check_table_id(const struct ofproto *ofproto, uint8_t table_id) |
3885 | { | |
554764d1 | 3886 | return table_id == OFPTT_ALL || table_id < ofproto->n_tables; |
48266274 BP |
3887 | } |
3888 | ||
5c67e4af | 3889 | static struct oftable * |
d4ce8a49 | 3890 | next_visible_table(const struct ofproto *ofproto, uint8_t table_id) |
5c67e4af BP |
3891 | { |
3892 | struct oftable *table; | |
3893 | ||
3894 | for (table = &ofproto->tables[table_id]; | |
3895 | table < &ofproto->tables[ofproto->n_tables]; | |
3896 | table++) { | |
3897 | if (!(table->flags & OFTABLE_HIDDEN)) { | |
3898 | return table; | |
3899 | } | |
3900 | } | |
3901 | ||
3902 | return NULL; | |
3903 | } | |
3904 | ||
d0918789 | 3905 | static struct oftable * |
d4ce8a49 | 3906 | first_matching_table(const struct ofproto *ofproto, uint8_t table_id) |
064af421 | 3907 | { |
6c1491fb | 3908 | if (table_id == 0xff) { |
5c67e4af | 3909 | return next_visible_table(ofproto, 0); |
6c1491fb BP |
3910 | } else if (table_id < ofproto->n_tables) { |
3911 | return &ofproto->tables[table_id]; | |
a02e5331 | 3912 | } else { |
6c1491fb | 3913 | return NULL; |
a02e5331 | 3914 | } |
064af421 BP |
3915 | } |
3916 | ||
d0918789 | 3917 | static struct oftable * |
d4ce8a49 BP |
3918 | next_matching_table(const struct ofproto *ofproto, |
3919 | const struct oftable *table, uint8_t table_id) | |
6c1491fb | 3920 | { |
5c67e4af BP |
3921 | return (table_id == 0xff |
3922 | ? next_visible_table(ofproto, (table - ofproto->tables) + 1) | |
6c1491fb BP |
3923 | : NULL); |
3924 | } | |
3925 | ||
d0918789 | 3926 | /* Assigns TABLE to each oftable, in turn, that matches TABLE_ID in OFPROTO: |
6c1491fb BP |
3927 | * |
3928 | * - If TABLE_ID is 0xff, this iterates over every classifier table in | |
5c67e4af | 3929 | * OFPROTO, skipping tables marked OFTABLE_HIDDEN. |
6c1491fb BP |
3930 | * |
3931 | * - If TABLE_ID is the number of a table in OFPROTO, then the loop iterates | |
5c67e4af BP |
3932 | * only once, for that table. (This can be used to access tables marked |
3933 | * OFTABLE_HIDDEN.) | |
6c1491fb | 3934 | * |
48266274 BP |
3935 | * - Otherwise, TABLE_ID isn't valid for OFPROTO, so the loop won't be |
3936 | * entered at all. (Perhaps you should have validated TABLE_ID with | |
3937 | * check_table_id().) | |
6c1491fb BP |
3938 | * |
3939 | * All parameters are evaluated multiple times. | |
3940 | */ | |
d0918789 BP |
3941 | #define FOR_EACH_MATCHING_TABLE(TABLE, TABLE_ID, OFPROTO) \ |
3942 | for ((TABLE) = first_matching_table(OFPROTO, TABLE_ID); \ | |
3943 | (TABLE) != NULL; \ | |
3944 | (TABLE) = next_matching_table(OFPROTO, TABLE, TABLE_ID)) | |
6c1491fb | 3945 | |
a9b22b7f BP |
3946 | /* Initializes 'criteria' in a straightforward way based on the other |
3947 | * parameters. | |
3948 | * | |
dd51dae2 BP |
3949 | * By default, the criteria include flows that are read-only, on the assumption |
3950 | * that the collected flows won't be modified. Call rule_criteria_require_rw() | |
3951 | * if flows will be modified. | |
3952 | * | |
a9b22b7f BP |
3953 | * For "loose" matching, the 'priority' parameter is unimportant and may be |
3954 | * supplied as 0. */ | |
3955 | static void | |
3956 | rule_criteria_init(struct rule_criteria *criteria, uint8_t table_id, | |
18721c4a | 3957 | const struct match *match, int priority, |
44e0c35d | 3958 | ovs_version_t version, ovs_be64 cookie, |
18721c4a JR |
3959 | ovs_be64 cookie_mask, ofp_port_t out_port, |
3960 | uint32_t out_group) | |
a9b22b7f BP |
3961 | { |
3962 | criteria->table_id = table_id; | |
bd53aa17 JR |
3963 | cls_rule_init(&criteria->cr, match, priority); |
3964 | criteria->version = version; | |
a9b22b7f BP |
3965 | criteria->cookie = cookie; |
3966 | criteria->cookie_mask = cookie_mask; | |
3967 | criteria->out_port = out_port; | |
3968 | criteria->out_group = out_group; | |
dd51dae2 BP |
3969 | |
3970 | /* We ordinarily want to skip hidden rules, but there has to be a way for | |
3971 | * code internal to OVS to modify and delete them, so if the criteria | |
3972 | * specify a priority that can only be for a hidden flow, then allow hidden | |
3973 | * rules to be selected. (This doesn't allow OpenFlow clients to meddle | |
3974 | * with hidden flows because OpenFlow uses only a 16-bit field to specify | |
3975 | * priority.) */ | |
3976 | criteria->include_hidden = priority > UINT16_MAX; | |
3977 | ||
3978 | /* We assume that the criteria are being used to collect flows for reading | |
3979 | * but not modification. Thus, we should collect read-only flows. */ | |
3980 | criteria->include_readonly = true; | |
3981 | } | |
3982 | ||
3983 | /* By default, criteria initialized by rule_criteria_init() will match flows | |
3984 | * that are read-only, on the assumption that the collected flows won't be | |
3985 | * modified. Call this function to match only flows that are be modifiable. | |
3986 | * | |
3987 | * Specify 'can_write_readonly' as false in ordinary circumstances, true if the | |
3988 | * caller has special privileges that allow it to modify even "read-only" | |
3989 | * flows. */ | |
3990 | static void | |
3991 | rule_criteria_require_rw(struct rule_criteria *criteria, | |
3992 | bool can_write_readonly) | |
3993 | { | |
3994 | criteria->include_readonly = can_write_readonly; | |
a9b22b7f BP |
3995 | } |
3996 | ||
3997 | static void | |
3998 | rule_criteria_destroy(struct rule_criteria *criteria) | |
3999 | { | |
4000 | cls_rule_destroy(&criteria->cr); | |
5bacd5cd | 4001 | criteria->version = OVS_VERSION_NOT_REMOVED; /* Mark as destroyed. */ |
a9b22b7f BP |
4002 | } |
4003 | ||
39c94593 JR |
4004 | /* Schedules postponed removal of rules, destroys 'rules'. */ |
4005 | static void | |
cc099268 | 4006 | remove_rules_postponed(struct rule_collection *rules) |
39c94593 JR |
4007 | OVS_REQUIRES(ofproto_mutex) |
4008 | { | |
fe59694b JR |
4009 | if (rule_collection_n(rules) > 0) { |
4010 | if (rule_collection_n(rules) == 1) { | |
4011 | ovsrcu_postpone(remove_rule_rcu, rule_collection_rules(rules)[0]); | |
4012 | rule_collection_init(rules); | |
39c94593 JR |
4013 | } else { |
4014 | ovsrcu_postpone(remove_rules_rcu, rule_collection_detach(rules)); | |
4015 | } | |
4016 | } | |
4017 | } | |
4018 | ||
5d08a275 JR |
4019 | /* Schedules postponed removal of groups, destroys 'groups'. */ |
4020 | static void | |
4021 | remove_groups_postponed(struct group_collection *groups) | |
4022 | OVS_REQUIRES(ofproto_mutex) | |
4023 | { | |
4024 | if (group_collection_n(groups) > 0) { | |
4025 | if (group_collection_n(groups) == 1) { | |
4026 | ovsrcu_postpone(remove_group_rcu, | |
4027 | group_collection_groups(groups)[0]); | |
4028 | group_collection_init(groups); | |
4029 | } else { | |
4030 | ovsrcu_postpone(remove_groups_rcu, | |
4031 | group_collection_detach(groups)); | |
4032 | } | |
4033 | } | |
4034 | } | |
4035 | ||
dd51dae2 BP |
4036 | /* Checks whether 'rule' matches 'c' and, if so, adds it to 'rules'. This |
4037 | * function verifies most of the criteria in 'c' itself, but the caller must | |
4038 | * check 'c->cr' itself. | |
4039 | * | |
2b7b1427 | 4040 | * Rules that have already been marked for removal are not collected. |
ce59413f | 4041 | * |
dd51dae2 | 4042 | * Increments '*n_readonly' if 'rule' wasn't added because it's read-only (and |
b20f4073 BP |
4043 | * 'c' only includes modifiable rules). */ |
4044 | static void | |
a9b22b7f | 4045 | collect_rule(struct rule *rule, const struct rule_criteria *c, |
dd51dae2 | 4046 | struct rule_collection *rules, size_t *n_readonly) |
15aaf599 | 4047 | OVS_REQUIRES(ofproto_mutex) |
6c1d7642 | 4048 | { |
dd51dae2 BP |
4049 | if ((c->table_id == rule->table_id || c->table_id == 0xff) |
4050 | && ofproto_rule_has_out_port(rule, c->out_port) | |
4051 | && ofproto_rule_has_out_group(rule, c->out_group) | |
4052 | && !((rule->flow_cookie ^ c->cookie) & c->cookie_mask) | |
ce59413f | 4053 | && (!rule_is_hidden(rule) || c->include_hidden) |
bd53aa17 | 4054 | && cls_rule_visible_in_version(&rule->cr, c->version)) { |
dd51dae2 | 4055 | /* Rule matches all the criteria... */ |
834fe5cb | 4056 | if (!rule_is_readonly(rule) || c->include_readonly) { |
dd51dae2 | 4057 | /* ...add it. */ |
a8e547c1 | 4058 | rule_collection_add(rules, rule); |
dd51dae2 BP |
4059 | } else { |
4060 | /* ...except it's read-only. */ | |
4061 | ++*n_readonly; | |
6c1d7642 | 4062 | } |
6c1d7642 BP |
4063 | } |
4064 | } | |
4065 | ||
a9b22b7f BP |
4066 | /* Searches 'ofproto' for rules that match the criteria in 'criteria'. Matches |
4067 | * on classifiers rules are done in the "loose" way required for OpenFlow | |
4068 | * OFPFC_MODIFY and OFPFC_DELETE requests. Puts the selected rules on list | |
9ed18e46 BP |
4069 | * 'rules'. |
4070 | * | |
9ed18e46 | 4071 | * Returns 0 on success, otherwise an OpenFlow error code. */ |
90bf1e07 | 4072 | static enum ofperr |
a9b22b7f | 4073 | collect_rules_loose(struct ofproto *ofproto, |
a8e547c1 BP |
4074 | const struct rule_criteria *criteria, |
4075 | struct rule_collection *rules) | |
15aaf599 | 4076 | OVS_REQUIRES(ofproto_mutex) |
9ed18e46 | 4077 | { |
d0918789 | 4078 | struct oftable *table; |
554764d1 | 4079 | enum ofperr error = 0; |
dd51dae2 | 4080 | size_t n_readonly = 0; |
48266274 | 4081 | |
a8e547c1 BP |
4082 | rule_collection_init(rules); |
4083 | ||
554764d1 SH |
4084 | if (!check_table_id(ofproto, criteria->table_id)) { |
4085 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
a8e547c1 | 4086 | goto exit; |
48266274 | 4087 | } |
9ed18e46 | 4088 | |
b8266395 | 4089 | if (criteria->cookie_mask == OVS_BE64_MAX) { |
98eaac36 JR |
4090 | struct rule *rule; |
4091 | ||
a9b22b7f BP |
4092 | HINDEX_FOR_EACH_WITH_HASH (rule, cookie_node, |
4093 | hash_cookie(criteria->cookie), | |
98eaac36 | 4094 | &ofproto->cookies) { |
a9b22b7f | 4095 | if (cls_rule_is_loose_match(&rule->cr, &criteria->cr.match)) { |
b20f4073 | 4096 | collect_rule(rule, criteria, rules, &n_readonly); |
98eaac36 JR |
4097 | } |
4098 | } | |
6c1d7642 | 4099 | } else { |
a9b22b7f | 4100 | FOR_EACH_MATCHING_TABLE (table, criteria->table_id, ofproto) { |
6c1d7642 | 4101 | struct rule *rule; |
9ed18e46 | 4102 | |
bd53aa17 JR |
4103 | CLS_FOR_EACH_TARGET (rule, cr, &table->cls, &criteria->cr, |
4104 | criteria->version) { | |
b20f4073 | 4105 | collect_rule(rule, criteria, rules, &n_readonly); |
9ed18e46 BP |
4106 | } |
4107 | } | |
4108 | } | |
48d28ac1 | 4109 | |
a8e547c1 | 4110 | exit: |
fe59694b | 4111 | if (!error && !rule_collection_n(rules) && n_readonly) { |
dd51dae2 BP |
4112 | /* We didn't find any rules to modify. We did find some read-only |
4113 | * rules that we're not allowed to modify, so report that. */ | |
4114 | error = OFPERR_OFPBRC_EPERM; | |
4115 | } | |
a8e547c1 BP |
4116 | if (error) { |
4117 | rule_collection_destroy(rules); | |
4118 | } | |
48d28ac1 | 4119 | return error; |
9ed18e46 BP |
4120 | } |
4121 | ||
a9b22b7f BP |
4122 | /* Searches 'ofproto' for rules that match the criteria in 'criteria'. Matches |
4123 | * on classifiers rules are done in the "strict" way required for OpenFlow | |
4124 | * OFPFC_MODIFY_STRICT and OFPFC_DELETE_STRICT requests. Puts the selected | |
4125 | * rules on list 'rules'. | |
9ed18e46 | 4126 | * |
9ed18e46 | 4127 | * Returns 0 on success, otherwise an OpenFlow error code. */ |
90bf1e07 | 4128 | static enum ofperr |
a9b22b7f | 4129 | collect_rules_strict(struct ofproto *ofproto, |
a8e547c1 BP |
4130 | const struct rule_criteria *criteria, |
4131 | struct rule_collection *rules) | |
15aaf599 | 4132 | OVS_REQUIRES(ofproto_mutex) |
9ed18e46 | 4133 | { |
d0918789 | 4134 | struct oftable *table; |
dd51dae2 | 4135 | size_t n_readonly = 0; |
d51c8b71 | 4136 | enum ofperr error = 0; |
48266274 | 4137 | |
a8e547c1 BP |
4138 | rule_collection_init(rules); |
4139 | ||
554764d1 SH |
4140 | if (!check_table_id(ofproto, criteria->table_id)) { |
4141 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
a8e547c1 | 4142 | goto exit; |
48266274 | 4143 | } |
9ed18e46 | 4144 | |
b8266395 | 4145 | if (criteria->cookie_mask == OVS_BE64_MAX) { |
98eaac36 JR |
4146 | struct rule *rule; |
4147 | ||
a9b22b7f BP |
4148 | HINDEX_FOR_EACH_WITH_HASH (rule, cookie_node, |
4149 | hash_cookie(criteria->cookie), | |
98eaac36 | 4150 | &ofproto->cookies) { |
a9b22b7f | 4151 | if (cls_rule_equal(&rule->cr, &criteria->cr)) { |
b20f4073 | 4152 | collect_rule(rule, criteria, rules, &n_readonly); |
98eaac36 JR |
4153 | } |
4154 | } | |
6c1d7642 | 4155 | } else { |
a9b22b7f | 4156 | FOR_EACH_MATCHING_TABLE (table, criteria->table_id, ofproto) { |
6c1d7642 | 4157 | struct rule *rule; |
9ed18e46 | 4158 | |
a9b22b7f | 4159 | rule = rule_from_cls_rule(classifier_find_rule_exactly( |
bd53aa17 JR |
4160 | &table->cls, &criteria->cr, |
4161 | criteria->version)); | |
6c1d7642 | 4162 | if (rule) { |
b20f4073 | 4163 | collect_rule(rule, criteria, rules, &n_readonly); |
9ed18e46 BP |
4164 | } |
4165 | } | |
4166 | } | |
48d28ac1 | 4167 | |
a8e547c1 | 4168 | exit: |
fe59694b | 4169 | if (!error && !rule_collection_n(rules) && n_readonly) { |
b20f4073 BP |
4170 | /* We didn't find any rules to modify. We did find some read-only |
4171 | * rules that we're not allowed to modify, so report that. */ | |
4172 | error = OFPERR_OFPBRC_EPERM; | |
4173 | } | |
a8e547c1 BP |
4174 | if (error) { |
4175 | rule_collection_destroy(rules); | |
4176 | } | |
6c1d7642 | 4177 | return error; |
9ed18e46 BP |
4178 | } |
4179 | ||
f27f2134 BP |
4180 | /* Returns 'age_ms' (a duration in milliseconds), converted to seconds and |
4181 | * forced into the range of a uint16_t. */ | |
4182 | static int | |
4183 | age_secs(long long int age_ms) | |
4184 | { | |
4185 | return (age_ms < 0 ? 0 | |
4186 | : age_ms >= UINT16_MAX * 1000 ? UINT16_MAX | |
4187 | : (unsigned int) age_ms / 1000); | |
4188 | } | |
4189 | ||
90bf1e07 | 4190 | static enum ofperr |
63f2140a | 4191 | handle_flow_stats_request(struct ofconn *ofconn, |
982697a4 | 4192 | const struct ofp_header *request) |
15aaf599 | 4193 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 4194 | { |
64ff1d96 | 4195 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
81d1ea94 | 4196 | struct ofputil_flow_stats_request fsr; |
a9b22b7f | 4197 | struct rule_criteria criteria; |
a8e547c1 | 4198 | struct rule_collection rules; |
ca6ba700 | 4199 | struct ovs_list replies; |
90bf1e07 | 4200 | enum ofperr error; |
09246b99 | 4201 | |
982697a4 | 4202 | error = ofputil_decode_flow_stats_request(&fsr, request); |
09246b99 BP |
4203 | if (error) { |
4204 | return error; | |
4205 | } | |
4206 | ||
44e0c35d | 4207 | rule_criteria_init(&criteria, fsr.table_id, &fsr.match, 0, OVS_VERSION_MAX, |
2b7b1427 JR |
4208 | fsr.cookie, fsr.cookie_mask, fsr.out_port, |
4209 | fsr.out_group); | |
15aaf599 BP |
4210 | |
4211 | ovs_mutex_lock(&ofproto_mutex); | |
a9b22b7f BP |
4212 | error = collect_rules_loose(ofproto, &criteria, &rules); |
4213 | rule_criteria_destroy(&criteria); | |
15aaf599 BP |
4214 | if (!error) { |
4215 | rule_collection_ref(&rules); | |
4216 | } | |
4217 | ovs_mutex_unlock(&ofproto_mutex); | |
4218 | ||
9ed18e46 BP |
4219 | if (error) { |
4220 | return error; | |
4221 | } | |
5ecc9d81 | 4222 | |
982697a4 | 4223 | ofpmp_init(&replies, request); |
fe59694b JR |
4224 | struct rule *rule; |
4225 | RULE_COLLECTION_FOR_EACH (rule, &rules) { | |
f27f2134 | 4226 | long long int now = time_msec(); |
9ed18e46 | 4227 | struct ofputil_flow_stats fs; |
15aaf599 | 4228 | long long int created, used, modified; |
dc723c44 | 4229 | const struct rule_actions *actions; |
15aaf599 | 4230 | enum ofputil_flow_mod_flags flags; |
a3779dbc | 4231 | |
d10976b7 | 4232 | ovs_mutex_lock(&rule->mutex); |
15aaf599 | 4233 | fs.cookie = rule->flow_cookie; |
a3779dbc EJ |
4234 | fs.idle_timeout = rule->idle_timeout; |
4235 | fs.hard_timeout = rule->hard_timeout; | |
ca26eb44 | 4236 | fs.importance = rule->importance; |
15aaf599 | 4237 | created = rule->created; |
15aaf599 | 4238 | modified = rule->modified; |
06a0f3e2 | 4239 | actions = rule_get_actions(rule); |
15aaf599 | 4240 | flags = rule->flags; |
d10976b7 | 4241 | ovs_mutex_unlock(&rule->mutex); |
a3779dbc | 4242 | |
dc437090 JR |
4243 | ofproto->ofproto_class->rule_get_stats(rule, &fs.packet_count, |
4244 | &fs.byte_count, &used); | |
4245 | ||
15aaf599 BP |
4246 | minimatch_expand(&rule->cr.match, &fs.match); |
4247 | fs.table_id = rule->table_id; | |
4248 | calc_duration(created, now, &fs.duration_sec, &fs.duration_nsec); | |
4249 | fs.priority = rule->cr.priority; | |
4250 | fs.idle_age = age_secs(now - used); | |
4251 | fs.hard_age = age_secs(now - modified); | |
15aaf599 BP |
4252 | fs.ofpacts = actions->ofpacts; |
4253 | fs.ofpacts_len = actions->ofpacts_len; | |
3f517bcd | 4254 | |
15aaf599 | 4255 | fs.flags = flags; |
9ed18e46 | 4256 | ofputil_append_flow_stats_reply(&fs, &replies); |
3c4486a5 | 4257 | } |
15aaf599 BP |
4258 | |
4259 | rule_collection_unref(&rules); | |
a8e547c1 BP |
4260 | rule_collection_destroy(&rules); |
4261 | ||
63f2140a | 4262 | ofconn_send_replies(ofconn, &replies); |
5ecc9d81 | 4263 | |
09246b99 BP |
4264 | return 0; |
4265 | } | |
4266 | ||
4f2cad2c | 4267 | static void |
3394b5b6 | 4268 | flow_stats_ds(struct rule *rule, struct ds *results) |
4f2cad2c | 4269 | { |
4f2cad2c | 4270 | uint64_t packet_count, byte_count; |
dc723c44 | 4271 | const struct rule_actions *actions; |
dc437090 | 4272 | long long int created, used; |
4f2cad2c | 4273 | |
dc437090 JR |
4274 | rule->ofproto->ofproto_class->rule_get_stats(rule, &packet_count, |
4275 | &byte_count, &used); | |
4f2cad2c | 4276 | |
15aaf599 | 4277 | ovs_mutex_lock(&rule->mutex); |
06a0f3e2 | 4278 | actions = rule_get_actions(rule); |
15aaf599 BP |
4279 | created = rule->created; |
4280 | ovs_mutex_unlock(&rule->mutex); | |
4281 | ||
6c1491fb BP |
4282 | if (rule->table_id != 0) { |
4283 | ds_put_format(results, "table_id=%"PRIu8", ", rule->table_id); | |
4284 | } | |
15aaf599 | 4285 | ds_put_format(results, "duration=%llds, ", (time_msec() - created) / 1000); |
4f2cad2c JP |
4286 | ds_put_format(results, "n_packets=%"PRIu64", ", packet_count); |
4287 | ds_put_format(results, "n_bytes=%"PRIu64", ", byte_count); | |
cb833cf6 | 4288 | cls_rule_format(&rule->cr, results); |
a5df0e72 | 4289 | ds_put_char(results, ','); |
15aaf599 | 4290 | |
455ecd77 | 4291 | ds_put_cstr(results, "actions="); |
15aaf599 BP |
4292 | ofpacts_format(actions->ofpacts, actions->ofpacts_len, results); |
4293 | ||
4f2cad2c JP |
4294 | ds_put_cstr(results, "\n"); |
4295 | } | |
4296 | ||
d295e8e9 | 4297 | /* Adds a pretty-printed description of all flows to 'results', including |
ee8b231c | 4298 | * hidden flows (e.g., set up by in-band control). */ |
4f2cad2c JP |
4299 | void |
4300 | ofproto_get_all_flows(struct ofproto *p, struct ds *results) | |
4301 | { | |
d0918789 | 4302 | struct oftable *table; |
6c1491fb | 4303 | |
d0918789 | 4304 | OFPROTO_FOR_EACH_TABLE (table, p) { |
6c1491fb | 4305 | struct rule *rule; |
064af421 | 4306 | |
5f0476ce | 4307 | CLS_FOR_EACH (rule, cr, &table->cls) { |
6c1491fb BP |
4308 | flow_stats_ds(rule, results); |
4309 | } | |
064af421 | 4310 | } |
064af421 BP |
4311 | } |
4312 | ||
b5827b24 BP |
4313 | /* Obtains the NetFlow engine type and engine ID for 'ofproto' into |
4314 | * '*engine_type' and '*engine_id', respectively. */ | |
4315 | void | |
4316 | ofproto_get_netflow_ids(const struct ofproto *ofproto, | |
4317 | uint8_t *engine_type, uint8_t *engine_id) | |
4318 | { | |
abe529af | 4319 | ofproto->ofproto_class->get_netflow_ids(ofproto, engine_type, engine_id); |
b5827b24 BP |
4320 | } |
4321 | ||
8f5514fe AW |
4322 | /* Checks the status change of CFM on 'ofport'. |
4323 | * | |
4324 | * Returns true if 'ofproto_class' does not support 'cfm_status_changed'. */ | |
4325 | bool | |
4326 | ofproto_port_cfm_status_changed(struct ofproto *ofproto, ofp_port_t ofp_port) | |
4327 | { | |
4328 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
4329 | return (ofport && ofproto->ofproto_class->cfm_status_changed | |
4330 | ? ofproto->ofproto_class->cfm_status_changed(ofport) | |
4331 | : true); | |
4332 | } | |
4333 | ||
88bf179a AW |
4334 | /* Checks the status of CFM configured on 'ofp_port' within 'ofproto'. |
4335 | * Returns 0 if the port's CFM status was successfully stored into | |
4336 | * '*status'. Returns positive errno if the port did not have CFM | |
8f5514fe | 4337 | * configured. |
9a9e3786 | 4338 | * |
88bf179a AW |
4339 | * The caller must provide and own '*status', and must free 'status->rmps'. |
4340 | * '*status' is indeterminate if the return value is non-zero. */ | |
4341 | int | |
4e022ec0 | 4342 | ofproto_port_get_cfm_status(const struct ofproto *ofproto, ofp_port_t ofp_port, |
685acfd9 | 4343 | struct cfm_status *status) |
3967a833 MM |
4344 | { |
4345 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
88bf179a AW |
4346 | return (ofport && ofproto->ofproto_class->get_cfm_status |
4347 | ? ofproto->ofproto_class->get_cfm_status(ofport, status) | |
4348 | : EOPNOTSUPP); | |
3967a833 MM |
4349 | } |
4350 | ||
90bf1e07 | 4351 | static enum ofperr |
76c93b22 | 4352 | handle_aggregate_stats_request(struct ofconn *ofconn, |
982697a4 | 4353 | const struct ofp_header *oh) |
15aaf599 | 4354 | OVS_EXCLUDED(ofproto_mutex) |
27d34fce | 4355 | { |
76c93b22 | 4356 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
81d1ea94 | 4357 | struct ofputil_flow_stats_request request; |
76c93b22 | 4358 | struct ofputil_aggregate_stats stats; |
5e9d0469 | 4359 | bool unknown_packets, unknown_bytes; |
a9b22b7f | 4360 | struct rule_criteria criteria; |
a8e547c1 | 4361 | struct rule_collection rules; |
76c93b22 | 4362 | struct ofpbuf *reply; |
90bf1e07 | 4363 | enum ofperr error; |
27d34fce | 4364 | |
982697a4 | 4365 | error = ofputil_decode_flow_stats_request(&request, oh); |
76c93b22 BP |
4366 | if (error) { |
4367 | return error; | |
4368 | } | |
5ecc9d81 | 4369 | |
a9b22b7f | 4370 | rule_criteria_init(&criteria, request.table_id, &request.match, 0, |
44e0c35d | 4371 | OVS_VERSION_MAX, request.cookie, request.cookie_mask, |
a9b22b7f | 4372 | request.out_port, request.out_group); |
15aaf599 BP |
4373 | |
4374 | ovs_mutex_lock(&ofproto_mutex); | |
a9b22b7f BP |
4375 | error = collect_rules_loose(ofproto, &criteria, &rules); |
4376 | rule_criteria_destroy(&criteria); | |
15aaf599 BP |
4377 | if (!error) { |
4378 | rule_collection_ref(&rules); | |
4379 | } | |
4380 | ovs_mutex_unlock(&ofproto_mutex); | |
4381 | ||
9ed18e46 BP |
4382 | if (error) { |
4383 | return error; | |
4384 | } | |
3c4486a5 | 4385 | |
9ed18e46 | 4386 | memset(&stats, 0, sizeof stats); |
5e9d0469 | 4387 | unknown_packets = unknown_bytes = false; |
fe59694b JR |
4388 | |
4389 | struct rule *rule; | |
4390 | RULE_COLLECTION_FOR_EACH (rule, &rules) { | |
9ed18e46 BP |
4391 | uint64_t packet_count; |
4392 | uint64_t byte_count; | |
dc437090 | 4393 | long long int used; |
5ecc9d81 | 4394 | |
9ed18e46 | 4395 | ofproto->ofproto_class->rule_get_stats(rule, &packet_count, |
dc437090 | 4396 | &byte_count, &used); |
5ecc9d81 | 4397 | |
5e9d0469 BP |
4398 | if (packet_count == UINT64_MAX) { |
4399 | unknown_packets = true; | |
4400 | } else { | |
4401 | stats.packet_count += packet_count; | |
4402 | } | |
4403 | ||
4404 | if (byte_count == UINT64_MAX) { | |
4405 | unknown_bytes = true; | |
4406 | } else { | |
4407 | stats.byte_count += byte_count; | |
4408 | } | |
4409 | ||
9ed18e46 | 4410 | stats.flow_count++; |
3c4486a5 | 4411 | } |
5e9d0469 BP |
4412 | if (unknown_packets) { |
4413 | stats.packet_count = UINT64_MAX; | |
4414 | } | |
4415 | if (unknown_bytes) { | |
4416 | stats.byte_count = UINT64_MAX; | |
4417 | } | |
27d34fce | 4418 | |
15aaf599 | 4419 | rule_collection_unref(&rules); |
a8e547c1 BP |
4420 | rule_collection_destroy(&rules); |
4421 | ||
982697a4 | 4422 | reply = ofputil_encode_aggregate_stats_reply(&stats, oh); |
76c93b22 | 4423 | ofconn_send_reply(ofconn, reply); |
09246b99 BP |
4424 | |
4425 | return 0; | |
4426 | } | |
4427 | ||
c1c9c9c4 | 4428 | struct queue_stats_cbdata { |
ca0f572c | 4429 | struct ofport *ofport; |
ca6ba700 | 4430 | struct ovs_list replies; |
6dc34a0d | 4431 | long long int now; |
c1c9c9c4 BP |
4432 | }; |
4433 | ||
4434 | static void | |
db9220c3 | 4435 | put_queue_stats(struct queue_stats_cbdata *cbdata, uint32_t queue_id, |
c1c9c9c4 BP |
4436 | const struct netdev_queue_stats *stats) |
4437 | { | |
6dc34a0d | 4438 | struct ofputil_queue_stats oqs; |
c1c9c9c4 | 4439 | |
6dc34a0d BP |
4440 | oqs.port_no = cbdata->ofport->pp.port_no; |
4441 | oqs.queue_id = queue_id; | |
4442 | oqs.tx_bytes = stats->tx_bytes; | |
4443 | oqs.tx_packets = stats->tx_packets; | |
4444 | oqs.tx_errors = stats->tx_errors; | |
4445 | if (stats->created != LLONG_MIN) { | |
4446 | calc_duration(stats->created, cbdata->now, | |
4447 | &oqs.duration_sec, &oqs.duration_nsec); | |
4448 | } else { | |
4449 | oqs.duration_sec = oqs.duration_nsec = UINT32_MAX; | |
4450 | } | |
64626975 | 4451 | ofputil_append_queue_stat(&cbdata->replies, &oqs); |
c1c9c9c4 BP |
4452 | } |
4453 | ||
4454 | static void | |
db9220c3 | 4455 | handle_queue_stats_dump_cb(uint32_t queue_id, |
c1c9c9c4 BP |
4456 | struct netdev_queue_stats *stats, |
4457 | void *cbdata_) | |
4458 | { | |
4459 | struct queue_stats_cbdata *cbdata = cbdata_; | |
4460 | ||
4461 | put_queue_stats(cbdata, queue_id, stats); | |
4462 | } | |
4463 | ||
0414d158 | 4464 | static enum ofperr |
ca0f572c | 4465 | handle_queue_stats_for_port(struct ofport *port, uint32_t queue_id, |
c1c9c9c4 BP |
4466 | struct queue_stats_cbdata *cbdata) |
4467 | { | |
ca0f572c | 4468 | cbdata->ofport = port; |
c1c9c9c4 BP |
4469 | if (queue_id == OFPQ_ALL) { |
4470 | netdev_dump_queue_stats(port->netdev, | |
4471 | handle_queue_stats_dump_cb, cbdata); | |
4472 | } else { | |
4473 | struct netdev_queue_stats stats; | |
4474 | ||
1ac788f6 BP |
4475 | if (!netdev_get_queue_stats(port->netdev, queue_id, &stats)) { |
4476 | put_queue_stats(cbdata, queue_id, &stats); | |
0414d158 BP |
4477 | } else { |
4478 | return OFPERR_OFPQOFC_BAD_QUEUE; | |
1ac788f6 | 4479 | } |
c1c9c9c4 | 4480 | } |
0414d158 | 4481 | return 0; |
c1c9c9c4 BP |
4482 | } |
4483 | ||
90bf1e07 | 4484 | static enum ofperr |
63f2140a | 4485 | handle_queue_stats_request(struct ofconn *ofconn, |
982697a4 | 4486 | const struct ofp_header *rq) |
c1c9c9c4 | 4487 | { |
64ff1d96 | 4488 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
c1c9c9c4 | 4489 | struct queue_stats_cbdata cbdata; |
0414d158 | 4490 | struct ofport *port; |
0414d158 | 4491 | enum ofperr error; |
64626975 | 4492 | struct ofputil_queue_stats_request oqsr; |
c1c9c9c4 | 4493 | |
c1c9c9c4 BP |
4494 | COVERAGE_INC(ofproto_queue_req); |
4495 | ||
982697a4 | 4496 | ofpmp_init(&cbdata.replies, rq); |
6dc34a0d | 4497 | cbdata.now = time_msec(); |
c1c9c9c4 | 4498 | |
64626975 SH |
4499 | error = ofputil_decode_queue_stats_request(rq, &oqsr); |
4500 | if (error) { | |
4501 | return error; | |
4502 | } | |
4503 | ||
7f05e7ab | 4504 | if (oqsr.port_no == OFPP_ANY) { |
0414d158 | 4505 | error = OFPERR_OFPQOFC_BAD_QUEUE; |
4e8e4213 | 4506 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
64626975 | 4507 | if (!handle_queue_stats_for_port(port, oqsr.queue_id, &cbdata)) { |
0414d158 BP |
4508 | error = 0; |
4509 | } | |
c1c9c9c4 | 4510 | } |
0414d158 | 4511 | } else { |
64626975 | 4512 | port = ofproto_get_port(ofproto, oqsr.port_no); |
0414d158 | 4513 | error = (port |
64626975 | 4514 | ? handle_queue_stats_for_port(port, oqsr.queue_id, &cbdata) |
0414d158 BP |
4515 | : OFPERR_OFPQOFC_BAD_PORT); |
4516 | } | |
4517 | if (!error) { | |
4518 | ofconn_send_replies(ofconn, &cbdata.replies); | |
c1c9c9c4 | 4519 | } else { |
63f2140a | 4520 | ofpbuf_list_delete(&cbdata.replies); |
c1c9c9c4 | 4521 | } |
c1c9c9c4 | 4522 | |
0414d158 | 4523 | return error; |
c1c9c9c4 | 4524 | } |
7ee20df1 | 4525 | |
2e31a9b8 | 4526 | static enum ofperr |
6787a49f | 4527 | evict_rules_from_table(struct oftable *table) |
15aaf599 | 4528 | OVS_REQUIRES(ofproto_mutex) |
2e31a9b8 | 4529 | { |
802f84ff JR |
4530 | enum ofperr error = 0; |
4531 | struct rule_collection rules; | |
6787a49f | 4532 | unsigned int count = table->n_flows; |
802f84ff JR |
4533 | unsigned int max_flows = table->max_flows; |
4534 | ||
4535 | rule_collection_init(&rules); | |
4536 | ||
4537 | while (count-- > max_flows) { | |
2e31a9b8 | 4538 | struct rule *rule; |
8037acb4 | 4539 | |
2e31a9b8 | 4540 | if (!choose_rule_to_evict(table, &rule)) { |
802f84ff JR |
4541 | error = OFPERR_OFPFMFC_TABLE_FULL; |
4542 | break; | |
2e31a9b8 | 4543 | } else { |
802f84ff JR |
4544 | eviction_group_remove_rule(rule); |
4545 | rule_collection_add(&rules, rule); | |
2e31a9b8 | 4546 | } |
8037acb4 | 4547 | } |
802f84ff | 4548 | delete_flows__(&rules, OFPRR_EVICTION, NULL); |
2e31a9b8 | 4549 | |
802f84ff | 4550 | return error; |
8037acb4 BP |
4551 | } |
4552 | ||
18080541 BP |
4553 | static void |
4554 | get_conjunctions(const struct ofputil_flow_mod *fm, | |
4555 | struct cls_conjunction **conjsp, size_t *n_conjsp) | |
18080541 BP |
4556 | { |
4557 | struct cls_conjunction *conjs = NULL; | |
4558 | int n_conjs = 0; | |
4559 | ||
f08e39dd BP |
4560 | const struct ofpact *ofpact; |
4561 | OFPACT_FOR_EACH (ofpact, fm->ofpacts, fm->ofpacts_len) { | |
4562 | if (ofpact->type == OFPACT_CONJUNCTION) { | |
18080541 | 4563 | n_conjs++; |
f08e39dd BP |
4564 | } else if (ofpact->type != OFPACT_NOTE) { |
4565 | /* "conjunction" may appear with "note" actions but not with any | |
4566 | * other type of actions. */ | |
4567 | ovs_assert(!n_conjs); | |
4568 | break; | |
18080541 | 4569 | } |
f08e39dd BP |
4570 | } |
4571 | if (n_conjs) { | |
4572 | int i = 0; | |
18080541 BP |
4573 | |
4574 | conjs = xzalloc(n_conjs * sizeof *conjs); | |
18080541 | 4575 | OFPACT_FOR_EACH (ofpact, fm->ofpacts, fm->ofpacts_len) { |
f08e39dd BP |
4576 | if (ofpact->type == OFPACT_CONJUNCTION) { |
4577 | struct ofpact_conjunction *oc = ofpact_get_CONJUNCTION(ofpact); | |
4578 | conjs[i].clause = oc->clause; | |
4579 | conjs[i].n_clauses = oc->n_clauses; | |
4580 | conjs[i].id = oc->id; | |
4581 | i++; | |
4582 | } | |
18080541 BP |
4583 | } |
4584 | } | |
4585 | ||
4586 | *conjsp = conjs; | |
4587 | *n_conjsp = n_conjs; | |
4588 | } | |
4589 | ||
5bacd5cd JR |
4590 | /* add_flow_init(), add_flow_start(), add_flow_revert(), and add_flow_finish() |
4591 | * implement OFPFC_ADD and the cases for OFPFC_MODIFY and OFPFC_MODIFY_STRICT | |
1f42be1c JR |
4592 | * in which no matching flow already exists in the flow table. |
4593 | * | |
5bacd5cd JR |
4594 | * add_flow_init() creates a new flow according to 'fm' and stores it to 'ofm' |
4595 | * for later reference. If the flow replaces other flow, it will be updated to | |
4596 | * match modify semantics later by add_flow_start() (by calling | |
4597 | * replace_rule_start()). | |
1f42be1c | 4598 | * |
5bacd5cd | 4599 | * Returns 0 on success, or an OpenFlow error code on failure. |
1f42be1c | 4600 | * |
5bacd5cd JR |
4601 | * On successful return the caller must complete the operation by calling |
4602 | * add_flow_start(), and if that succeeds, then either add_flow_finish(), or | |
4603 | * add_flow_revert() if the operation needs to be reverted due to a later | |
4604 | * failure. | |
4605 | */ | |
90bf1e07 | 4606 | static enum ofperr |
5bacd5cd JR |
4607 | add_flow_init(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
4608 | const struct ofputil_flow_mod *fm) | |
4609 | OVS_EXCLUDED(ofproto_mutex) | |
064af421 | 4610 | { |
d0918789 | 4611 | struct oftable *table; |
8037acb4 | 4612 | struct cls_rule cr; |
5a361239 | 4613 | uint8_t table_id; |
39c94593 | 4614 | enum ofperr error; |
064af421 | 4615 | |
554764d1 | 4616 | if (!check_table_id(ofproto, fm->table_id)) { |
5bacd5cd | 4617 | return OFPERR_OFPBRC_BAD_TABLE_ID; |
48266274 BP |
4618 | } |
4619 | ||
7ee20df1 BP |
4620 | /* Pick table. */ |
4621 | if (fm->table_id == 0xff) { | |
13521ff5 | 4622 | if (ofproto->ofproto_class->rule_choose_table) { |
81a76618 BP |
4623 | error = ofproto->ofproto_class->rule_choose_table(ofproto, |
4624 | &fm->match, | |
7ee20df1 BP |
4625 | &table_id); |
4626 | if (error) { | |
4627 | return error; | |
4628 | } | |
cb22974d | 4629 | ovs_assert(table_id < ofproto->n_tables); |
7ee20df1 | 4630 | } else { |
5a361239 | 4631 | table_id = 0; |
7ee20df1 BP |
4632 | } |
4633 | } else if (fm->table_id < ofproto->n_tables) { | |
5a361239 | 4634 | table_id = fm->table_id; |
7ee20df1 | 4635 | } else { |
c22c56bd | 4636 | return OFPERR_OFPBRC_BAD_TABLE_ID; |
064af421 BP |
4637 | } |
4638 | ||
5a361239 | 4639 | table = &ofproto->tables[table_id]; |
834fe5cb BP |
4640 | if (table->flags & OFTABLE_READONLY |
4641 | && !(fm->flags & OFPUTIL_FF_NO_READONLY)) { | |
5c67e4af BP |
4642 | return OFPERR_OFPBRC_EPERM; |
4643 | } | |
4644 | ||
c84d8691 JR |
4645 | if (!(fm->flags & OFPUTIL_FF_HIDDEN_FIELDS) |
4646 | && !match_has_default_hidden_fields(&fm->match)) { | |
4647 | VLOG_WARN_RL(&rl, "%s: (add_flow) only internal flows can set " | |
4648 | "non-default values to hidden fields", ofproto->name); | |
4649 | return OFPERR_OFPBRC_EPERM; | |
adcf00ba AZ |
4650 | } |
4651 | ||
bd53aa17 | 4652 | cls_rule_init(&cr, &fm->match, fm->priority); |
8037acb4 | 4653 | |
5bacd5cd JR |
4654 | /* Allocate new rule. Destroys 'cr'. */ |
4655 | error = ofproto_rule_create(ofproto, &cr, table - ofproto->tables, | |
4656 | fm->new_cookie, fm->idle_timeout, | |
4657 | fm->hard_timeout, fm->flags, fm->importance, | |
4658 | fm->ofpacts, fm->ofpacts_len, &ofm->temp_rule); | |
4659 | if (error) { | |
4660 | return error; | |
4661 | } | |
4662 | ||
4663 | get_conjunctions(fm, &ofm->conjs, &ofm->n_conjs); | |
4664 | return 0; | |
4665 | } | |
4666 | ||
4667 | static enum ofperr | |
4668 | add_flow_start(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) | |
4669 | OVS_REQUIRES(ofproto_mutex) | |
4670 | { | |
4671 | struct rule *old_rule = NULL; | |
4672 | struct rule *new_rule = ofm->temp_rule; | |
4673 | const struct rule_actions *actions = rule_get_actions(new_rule); | |
4674 | struct oftable *table = &ofproto->tables[new_rule->table_id]; | |
4675 | enum ofperr error; | |
4676 | ||
4677 | /* Must check actions while holding ofproto_mutex to avoid a race. */ | |
4678 | error = ofproto_check_ofpacts(ofproto, actions->ofpacts, | |
4679 | actions->ofpacts_len); | |
4680 | if (error) { | |
4681 | return error; | |
4682 | } | |
4683 | ||
1f42be1c | 4684 | /* Check for the existence of an identical rule. |
2b7b1427 | 4685 | * This will not return rules earlier marked for removal. */ |
5bacd5cd JR |
4686 | old_rule = rule_from_cls_rule(classifier_find_rule_exactly(&table->cls, |
4687 | &new_rule->cr, | |
4688 | ofm->version)); | |
4689 | if (!old_rule) { | |
c84d8691 | 4690 | /* Check for overlap, if requested. */ |
5bacd5cd JR |
4691 | if (new_rule->flags & OFPUTIL_FF_CHECK_OVERLAP |
4692 | && classifier_rule_overlaps(&table->cls, &new_rule->cr, | |
4693 | ofm->version)) { | |
c84d8691 | 4694 | return OFPERR_OFPFMFC_OVERLAP; |
dd27be82 | 4695 | } |
b277c7cc | 4696 | |
c84d8691 | 4697 | /* If necessary, evict an existing rule to clear out space. */ |
6787a49f | 4698 | if (table->n_flows >= table->max_flows) { |
5bacd5cd JR |
4699 | if (!choose_rule_to_evict(table, &old_rule)) { |
4700 | return OFPERR_OFPFMFC_TABLE_FULL; | |
6787a49f | 4701 | } |
5bacd5cd JR |
4702 | eviction_group_remove_rule(old_rule); |
4703 | /* Marks 'old_rule' as an evicted rule rather than replaced rule. | |
6787a49f | 4704 | */ |
5bacd5cd | 4705 | old_rule->removed_reason = OFPRR_EVICTION; |
c09f755d | 4706 | } |
39c94593 | 4707 | } else { |
7338102b | 4708 | ofm->modify_cookie = true; |
39c94593 | 4709 | } |
81a76618 | 4710 | |
5bacd5cd JR |
4711 | if (old_rule) { |
4712 | rule_collection_add(&ofm->old_rules, old_rule); | |
064af421 | 4713 | } |
5bacd5cd | 4714 | /* Take ownership of the temp_rule. */ |
58026109 | 4715 | rule_collection_add(&ofm->new_rules, new_rule); |
5bacd5cd | 4716 | ofm->temp_rule = NULL; |
8037acb4 | 4717 | |
5bacd5cd | 4718 | replace_rule_start(ofproto, ofm, old_rule, new_rule); |
c84d8691 JR |
4719 | return 0; |
4720 | } | |
1ebeaaa7 | 4721 | |
6787a49f | 4722 | /* Revert the effects of add_flow_start(). */ |
1f42be1c | 4723 | static void |
8be00367 | 4724 | add_flow_revert(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
1f42be1c JR |
4725 | OVS_REQUIRES(ofproto_mutex) |
4726 | { | |
5bacd5cd | 4727 | struct rule *old_rule = rule_collection_n(&ofm->old_rules) |
58026109 JR |
4728 | ? rule_collection_rules(&ofm->old_rules)[0] : NULL; |
4729 | struct rule *new_rule = rule_collection_rules(&ofm->new_rules)[0]; | |
8be00367 | 4730 | |
39c94593 | 4731 | replace_rule_revert(ofproto, old_rule, new_rule); |
1f42be1c JR |
4732 | } |
4733 | ||
39c94593 | 4734 | /* To be called after version bump. */ |
c84d8691 | 4735 | static void |
8be00367 | 4736 | add_flow_finish(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
0a0d9385 | 4737 | const struct openflow_mod_requester *req) |
c84d8691 JR |
4738 | OVS_REQUIRES(ofproto_mutex) |
4739 | { | |
5bacd5cd | 4740 | struct rule *old_rule = rule_collection_n(&ofm->old_rules) |
58026109 JR |
4741 | ? rule_collection_rules(&ofm->old_rules)[0] : NULL; |
4742 | struct rule *new_rule = rule_collection_rules(&ofm->new_rules)[0]; | |
39c94593 | 4743 | struct ovs_list dead_cookies = OVS_LIST_INITIALIZER(&dead_cookies); |
8037acb4 | 4744 | |
81dee635 | 4745 | replace_rule_finish(ofproto, ofm, req, old_rule, new_rule, &dead_cookies); |
39c94593 | 4746 | learned_cookies_flush(ofproto, &dead_cookies); |
802f84ff | 4747 | |
39c94593 JR |
4748 | if (old_rule) { |
4749 | ovsrcu_postpone(remove_rule_rcu, old_rule); | |
4750 | } else { | |
39c94593 | 4751 | ofmonitor_report(ofproto->connmgr, new_rule, NXFME_ADDED, 0, |
c84d8691 JR |
4752 | req ? req->ofconn : NULL, |
4753 | req ? req->request->xid : 0, NULL); | |
6c6eedc5 SJ |
4754 | |
4755 | /* Send Vacancy Events for OF1.4+. */ | |
4756 | send_table_status(ofproto, new_rule->table_id); | |
c84d8691 | 4757 | } |
c84d8691 | 4758 | } |
79eee1eb BP |
4759 | \f |
4760 | /* OFPFC_MODIFY and OFPFC_MODIFY_STRICT. */ | |
064af421 | 4761 | |
5bacd5cd | 4762 | /* Create a new rule. Note that the rule is NOT inserted into a any data |
39c94593 | 4763 | * structures yet. Takes ownership of 'cr'. */ |
90bf1e07 | 4764 | static enum ofperr |
5bacd5cd JR |
4765 | ofproto_rule_create(struct ofproto *ofproto, struct cls_rule *cr, |
4766 | uint8_t table_id, ovs_be64 new_cookie, | |
4767 | uint16_t idle_timeout, uint16_t hard_timeout, | |
4768 | enum ofputil_flow_mod_flags flags, uint16_t importance, | |
4769 | const struct ofpact *ofpacts, size_t ofpacts_len, | |
4770 | struct rule **new_rule) | |
4771 | OVS_NO_THREAD_SAFETY_ANALYSIS | |
79eee1eb | 4772 | { |
39c94593 | 4773 | struct rule *rule; |
dd27be82 | 4774 | enum ofperr error; |
79eee1eb | 4775 | |
39c94593 JR |
4776 | /* Allocate new rule. */ |
4777 | rule = ofproto->ofproto_class->rule_alloc(); | |
4778 | if (!rule) { | |
4779 | cls_rule_destroy(cr); | |
4780 | VLOG_WARN_RL(&rl, "%s: failed to allocate a rule.", ofproto->name); | |
4781 | return OFPERR_OFPFMFC_UNKNOWN; | |
af822017 BP |
4782 | } |
4783 | ||
39c94593 JR |
4784 | /* Initialize base state. */ |
4785 | *CONST_CAST(struct ofproto **, &rule->ofproto) = ofproto; | |
4786 | cls_rule_move(CONST_CAST(struct cls_rule *, &rule->cr), cr); | |
4787 | ovs_refcount_init(&rule->ref_count); | |
834fe5cb | 4788 | |
39c94593 JR |
4789 | ovs_mutex_init(&rule->mutex); |
4790 | ovs_mutex_lock(&rule->mutex); | |
5bacd5cd JR |
4791 | rule->flow_cookie = new_cookie; |
4792 | rule->created = rule->modified = time_msec(); | |
4793 | rule->idle_timeout = idle_timeout; | |
4794 | rule->hard_timeout = hard_timeout; | |
4795 | *CONST_CAST(uint16_t *, &rule->importance) = importance; | |
f695ebfa | 4796 | rule->removed_reason = OVS_OFPRR_NONE; |
834fe5cb | 4797 | |
39c94593 | 4798 | *CONST_CAST(uint8_t *, &rule->table_id) = table_id; |
5bacd5cd JR |
4799 | rule->flags = flags & OFPUTIL_FF_STATE; |
4800 | ||
39c94593 | 4801 | *CONST_CAST(const struct rule_actions **, &rule->actions) |
5bacd5cd JR |
4802 | = rule_actions_create(ofpacts, ofpacts_len); |
4803 | ||
417e7e66 | 4804 | ovs_list_init(&rule->meter_list_node); |
39c94593 | 4805 | rule->eviction_group = NULL; |
39c94593 JR |
4806 | rule->monitor_flags = 0; |
4807 | rule->add_seqno = 0; | |
4808 | rule->modify_seqno = 0; | |
5bacd5cd | 4809 | ovs_list_init(&rule->expirable); |
dd27be82 JR |
4810 | ovs_mutex_unlock(&rule->mutex); |
4811 | ||
39c94593 JR |
4812 | /* Construct rule, initializing derived state. */ |
4813 | error = ofproto->ofproto_class->rule_construct(rule); | |
4814 | if (error) { | |
4815 | ofproto_rule_destroy__(rule); | |
4816 | return error; | |
dd27be82 | 4817 | } |
b277c7cc | 4818 | |
30d0452c | 4819 | rule->state = RULE_INITIALIZED; |
dd27be82 | 4820 | |
39c94593 JR |
4821 | *new_rule = rule; |
4822 | return 0; | |
4823 | } | |
884e1dc4 | 4824 | |
39c94593 | 4825 | static void |
5bacd5cd JR |
4826 | replace_rule_start(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
4827 | struct rule *old_rule, struct rule *new_rule) | |
39c94593 JR |
4828 | { |
4829 | struct oftable *table = &ofproto->tables[new_rule->table_id]; | |
834fe5cb | 4830 | |
6787a49f | 4831 | /* 'old_rule' may be either an evicted rule or replaced rule. */ |
39c94593 | 4832 | if (old_rule) { |
5bacd5cd JR |
4833 | /* Copy values from old rule for modify semantics. */ |
4834 | if (old_rule->removed_reason != OFPRR_EVICTION) { | |
4835 | bool change_cookie = (ofm->modify_cookie | |
4836 | && new_rule->flow_cookie != OVS_BE64_MAX | |
4837 | && new_rule->flow_cookie != old_rule->flow_cookie); | |
4838 | ||
4839 | ovs_mutex_lock(&new_rule->mutex); | |
4840 | ovs_mutex_lock(&old_rule->mutex); | |
4841 | if (ofm->command != OFPFC_ADD) { | |
4842 | new_rule->idle_timeout = old_rule->idle_timeout; | |
4843 | new_rule->hard_timeout = old_rule->hard_timeout; | |
4844 | *CONST_CAST(uint16_t *, &new_rule->importance) = old_rule->importance; | |
4845 | new_rule->flags = old_rule->flags; | |
4846 | new_rule->created = old_rule->created; | |
4847 | } | |
4848 | if (!change_cookie) { | |
4849 | new_rule->flow_cookie = old_rule->flow_cookie; | |
4850 | } | |
4851 | ovs_mutex_unlock(&old_rule->mutex); | |
4852 | ovs_mutex_unlock(&new_rule->mutex); | |
4853 | } | |
4854 | ||
39c94593 | 4855 | /* Mark the old rule for removal in the next version. */ |
5bacd5cd | 4856 | cls_rule_make_invisible_in_version(&old_rule->cr, ofm->version); |
9bab38ff JR |
4857 | |
4858 | /* Remove the old rule from data structures. */ | |
4859 | ofproto_rule_remove__(ofproto, old_rule); | |
d79e3d70 JR |
4860 | } else { |
4861 | table->n_flows++; | |
dd27be82 | 4862 | } |
cc099268 JR |
4863 | /* Insert flow to ofproto data structures, so that later flow_mods may |
4864 | * relate to it. This is reversible, in case later errors require this to | |
39c94593 JR |
4865 | * be reverted. */ |
4866 | ofproto_rule_insert__(ofproto, new_rule); | |
4867 | /* Make the new rule visible for classifier lookups only from the next | |
4868 | * version. */ | |
5bacd5cd JR |
4869 | classifier_insert(&table->cls, &new_rule->cr, ofm->version, ofm->conjs, |
4870 | ofm->n_conjs); | |
39c94593 JR |
4871 | } |
4872 | ||
cc099268 JR |
4873 | static void |
4874 | replace_rule_revert(struct ofproto *ofproto, | |
4875 | struct rule *old_rule, struct rule *new_rule) | |
39c94593 JR |
4876 | { |
4877 | struct oftable *table = &ofproto->tables[new_rule->table_id]; | |
35f48b8b | 4878 | |
39c94593 | 4879 | if (old_rule) { |
5bacd5cd JR |
4880 | if (old_rule->removed_reason == OFPRR_EVICTION) { |
4881 | /* Revert the eviction. */ | |
4882 | eviction_group_add_rule(old_rule); | |
4883 | } | |
4884 | ||
9bab38ff JR |
4885 | /* Restore the old rule to data structures. */ |
4886 | ofproto_rule_insert__(ofproto, old_rule); | |
4887 | ||
d79e3d70 | 4888 | /* Restore the original visibility of the old rule. */ |
39c94593 | 4889 | cls_rule_restore_visibility(&old_rule->cr); |
d79e3d70 JR |
4890 | } else { |
4891 | /* Restore table's rule count. */ | |
4892 | table->n_flows--; | |
834fe5cb BP |
4893 | } |
4894 | ||
39c94593 JR |
4895 | /* Remove the new rule immediately. It was never visible to lookups. */ |
4896 | if (!classifier_remove(&table->cls, &new_rule->cr)) { | |
4897 | OVS_NOT_REACHED(); | |
5ecc9d81 | 4898 | } |
39c94593 | 4899 | ofproto_rule_remove__(ofproto, new_rule); |
39c94593 | 4900 | ofproto_rule_unref(new_rule); |
dd27be82 | 4901 | } |
79eee1eb | 4902 | |
39c94593 | 4903 | /* Adds the 'new_rule', replacing the 'old_rule'. */ |
dd27be82 | 4904 | static void |
81dee635 | 4905 | replace_rule_finish(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
0a0d9385 | 4906 | const struct openflow_mod_requester *req, |
39c94593 JR |
4907 | struct rule *old_rule, struct rule *new_rule, |
4908 | struct ovs_list *dead_cookies) | |
dd27be82 JR |
4909 | OVS_REQUIRES(ofproto_mutex) |
4910 | { | |
748eb2f5 | 4911 | bool forward_counts = !(new_rule->flags & OFPUTIL_FF_RESET_COUNTS); |
6787a49f JR |
4912 | struct rule *replaced_rule; |
4913 | ||
5aacc3e2 JR |
4914 | replaced_rule = (old_rule && old_rule->removed_reason != OFPRR_EVICTION) |
4915 | ? old_rule : NULL; | |
dd27be82 | 4916 | |
6787a49f JR |
4917 | /* Insert the new flow to the ofproto provider. A non-NULL 'replaced_rule' |
4918 | * is a duplicate rule the 'new_rule' is replacing. The provider should | |
748eb2f5 JR |
4919 | * link the packet and byte counts from the old rule to the new one if |
4920 | * 'forward_counts' is 'true'. The 'replaced_rule' will be deleted right | |
4921 | * after this call. */ | |
6787a49f | 4922 | ofproto->ofproto_class->rule_insert(new_rule, replaced_rule, |
748eb2f5 | 4923 | forward_counts); |
39c94593 JR |
4924 | learned_cookies_inc(ofproto, rule_get_actions(new_rule)); |
4925 | ||
4926 | if (old_rule) { | |
4927 | const struct rule_actions *old_actions = rule_get_actions(old_rule); | |
81dee635 | 4928 | const struct rule_actions *new_actions = rule_get_actions(new_rule); |
39c94593 | 4929 | |
39c94593 JR |
4930 | learned_cookies_dec(ofproto, old_actions, dead_cookies); |
4931 | ||
6787a49f | 4932 | if (replaced_rule) { |
5bacd5cd JR |
4933 | enum nx_flow_update_event event = ofm->command == OFPFC_ADD |
4934 | ? NXFME_ADDED : NXFME_MODIFIED; | |
4935 | ||
81dee635 JR |
4936 | bool changed_cookie = (new_rule->flow_cookie |
4937 | != old_rule->flow_cookie); | |
6787a49f | 4938 | |
81dee635 JR |
4939 | bool changed_actions = !ofpacts_equal(new_actions->ofpacts, |
4940 | new_actions->ofpacts_len, | |
4941 | old_actions->ofpacts, | |
4942 | old_actions->ofpacts_len); | |
6787a49f | 4943 | |
5bacd5cd | 4944 | if (event != NXFME_MODIFIED || changed_actions |
81dee635 | 4945 | || changed_cookie) { |
5bacd5cd | 4946 | ofmonitor_report(ofproto->connmgr, new_rule, event, 0, |
6787a49f JR |
4947 | req ? req->ofconn : NULL, |
4948 | req ? req->request->xid : 0, | |
81dee635 | 4949 | changed_actions ? old_actions : NULL); |
6787a49f JR |
4950 | } |
4951 | } else { | |
4952 | /* XXX: This is slight duplication with delete_flows_finish__() */ | |
6787a49f JR |
4953 | ofmonitor_report(ofproto->connmgr, old_rule, NXFME_DELETED, |
4954 | OFPRR_EVICTION, | |
39c94593 | 4955 | req ? req->ofconn : NULL, |
6787a49f | 4956 | req ? req->request->xid : 0, NULL); |
39c94593 | 4957 | } |
dd27be82 | 4958 | } |
9ed18e46 BP |
4959 | } |
4960 | ||
9387b970 | 4961 | static enum ofperr |
8be00367 | 4962 | modify_flows_start__(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
dd27be82 JR |
4963 | OVS_REQUIRES(ofproto_mutex) |
4964 | { | |
8be00367 JR |
4965 | struct rule_collection *old_rules = &ofm->old_rules; |
4966 | struct rule_collection *new_rules = &ofm->new_rules; | |
dd27be82 JR |
4967 | enum ofperr error; |
4968 | ||
fe59694b | 4969 | if (rule_collection_n(old_rules) > 0) { |
39c94593 | 4970 | /* Create a new 'modified' rule for each old rule. */ |
5bacd5cd JR |
4971 | struct rule *old_rule, *new_rule; |
4972 | const struct rule_actions *actions = rule_get_actions(ofm->temp_rule); | |
39c94593 | 4973 | |
5bacd5cd JR |
4974 | /* Must check actions while holding ofproto_mutex to avoid a race. */ |
4975 | error = ofproto_check_ofpacts(ofproto, actions->ofpacts, | |
4976 | actions->ofpacts_len); | |
4977 | if (error) { | |
4978 | return error; | |
4979 | } | |
4980 | ||
4981 | /* Use the temp rule as the first new rule, and as the template for | |
4982 | * the rest. */ | |
4983 | struct rule *temp = ofm->temp_rule; | |
4984 | ofm->temp_rule = NULL; /* We consume the template. */ | |
4985 | ||
4986 | bool first = true; | |
4987 | RULE_COLLECTION_FOR_EACH (old_rule, old_rules) { | |
4988 | if (first) { | |
4989 | /* The template rule's match is possibly a loose one, so it | |
4990 | * must be replaced with the old rule's match so that the new | |
4991 | * rule actually replaces the old one. */ | |
4992 | cls_rule_destroy(CONST_CAST(struct cls_rule *, &temp->cr)); | |
4993 | cls_rule_clone(CONST_CAST(struct cls_rule *, &temp->cr), | |
4994 | &old_rule->cr); | |
4995 | *CONST_CAST(uint8_t *, &temp->table_id) = old_rule->table_id; | |
4996 | rule_collection_add(new_rules, temp); | |
4997 | first = false; | |
39c94593 | 4998 | } else { |
5bacd5cd JR |
4999 | struct cls_rule cr; |
5000 | cls_rule_clone(&cr, &old_rule->cr); | |
5001 | error = ofproto_rule_create(ofproto, &cr, old_rule->table_id, | |
5002 | temp->flow_cookie, | |
5003 | temp->idle_timeout, | |
5004 | temp->hard_timeout, temp->flags, | |
5005 | temp->importance, | |
5006 | temp->actions->ofpacts, | |
5007 | temp->actions->ofpacts_len, | |
5008 | &new_rule); | |
5009 | if (!error) { | |
5010 | rule_collection_add(new_rules, new_rule); | |
5011 | } else { | |
5012 | rule_collection_unref(new_rules); | |
5013 | rule_collection_destroy(new_rules); | |
5014 | return error; | |
5015 | } | |
39c94593 JR |
5016 | } |
5017 | } | |
fe59694b JR |
5018 | ovs_assert(rule_collection_n(new_rules) |
5019 | == rule_collection_n(old_rules)); | |
39c94593 | 5020 | |
fe59694b | 5021 | RULE_COLLECTIONS_FOR_EACH (old_rule, new_rule, old_rules, new_rules) { |
5bacd5cd | 5022 | replace_rule_start(ofproto, ofm, old_rule, new_rule); |
39c94593 | 5023 | } |
81dee635 | 5024 | } else if (ofm->modify_may_add_flow) { |
5bacd5cd | 5025 | /* No match, add a new flow, consumes 'temp'. */ |
8be00367 | 5026 | error = add_flow_start(ofproto, ofm); |
fe59694b | 5027 | new_rules->collection.n = 1; |
dd27be82 | 5028 | } else { |
d99f64d7 | 5029 | error = 0; |
dd27be82 | 5030 | } |
39c94593 | 5031 | |
dd27be82 JR |
5032 | return error; |
5033 | } | |
5034 | ||
5bacd5cd JR |
5035 | static enum ofperr |
5036 | modify_flows_init_loose(struct ofproto *ofproto, | |
5037 | struct ofproto_flow_mod *ofm, | |
5038 | const struct ofputil_flow_mod *fm) | |
5039 | OVS_EXCLUDED(ofproto_mutex) | |
5040 | { | |
5041 | rule_criteria_init(&ofm->criteria, fm->table_id, &fm->match, 0, | |
5042 | OVS_VERSION_MAX, fm->cookie, fm->cookie_mask, OFPP_ANY, | |
5043 | OFPG_ANY); | |
5044 | rule_criteria_require_rw(&ofm->criteria, | |
5045 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
5046 | /* Must create a new flow in advance for the case that no matches are | |
5047 | * found. Also used for template for multiple modified flows. */ | |
5048 | add_flow_init(ofproto, ofm, fm); | |
5049 | ||
5050 | return 0; | |
5051 | } | |
5052 | ||
90bf1e07 | 5053 | /* Implements OFPFC_MODIFY. Returns 0 on success or an OpenFlow error code on |
c184807c | 5054 | * failure. */ |
90bf1e07 | 5055 | static enum ofperr |
8be00367 | 5056 | modify_flows_start_loose(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
15aaf599 | 5057 | OVS_REQUIRES(ofproto_mutex) |
9ed18e46 | 5058 | { |
8be00367 | 5059 | struct rule_collection *old_rules = &ofm->old_rules; |
d51c8b71 | 5060 | enum ofperr error; |
9ed18e46 | 5061 | |
5bacd5cd | 5062 | error = collect_rules_loose(ofproto, &ofm->criteria, old_rules); |
a9b22b7f | 5063 | |
a8e547c1 | 5064 | if (!error) { |
8be00367 | 5065 | error = modify_flows_start__(ofproto, ofm); |
d99f64d7 JR |
5066 | } |
5067 | ||
5068 | if (error) { | |
39c94593 | 5069 | rule_collection_destroy(old_rules); |
d99f64d7 | 5070 | } |
5bacd5cd | 5071 | |
d99f64d7 JR |
5072 | return error; |
5073 | } | |
5074 | ||
1f42be1c | 5075 | static void |
8be00367 | 5076 | modify_flows_revert(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
1f42be1c JR |
5077 | OVS_REQUIRES(ofproto_mutex) |
5078 | { | |
8be00367 JR |
5079 | struct rule_collection *old_rules = &ofm->old_rules; |
5080 | struct rule_collection *new_rules = &ofm->new_rules; | |
5081 | ||
39c94593 | 5082 | /* Old rules were not changed yet, only need to revert new rules. */ |
5bacd5cd | 5083 | if (rule_collection_n(old_rules) > 0) { |
fe59694b JR |
5084 | struct rule *old_rule, *new_rule; |
5085 | RULE_COLLECTIONS_FOR_EACH (old_rule, new_rule, old_rules, new_rules) { | |
5086 | replace_rule_revert(ofproto, old_rule, new_rule); | |
39c94593 JR |
5087 | } |
5088 | rule_collection_destroy(new_rules); | |
5089 | rule_collection_destroy(old_rules); | |
1f42be1c | 5090 | } |
1f42be1c JR |
5091 | } |
5092 | ||
d99f64d7 | 5093 | static void |
8be00367 | 5094 | modify_flows_finish(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
0a0d9385 | 5095 | const struct openflow_mod_requester *req) |
d99f64d7 JR |
5096 | OVS_REQUIRES(ofproto_mutex) |
5097 | { | |
8be00367 JR |
5098 | struct rule_collection *old_rules = &ofm->old_rules; |
5099 | struct rule_collection *new_rules = &ofm->new_rules; | |
5100 | ||
fe59694b JR |
5101 | if (rule_collection_n(old_rules) == 0 |
5102 | && rule_collection_n(new_rules) == 1) { | |
8be00367 | 5103 | add_flow_finish(ofproto, ofm, req); |
fe59694b | 5104 | } else if (rule_collection_n(old_rules) > 0) { |
39c94593 JR |
5105 | struct ovs_list dead_cookies = OVS_LIST_INITIALIZER(&dead_cookies); |
5106 | ||
fe59694b JR |
5107 | ovs_assert(rule_collection_n(new_rules) |
5108 | == rule_collection_n(old_rules)); | |
39c94593 | 5109 | |
fe59694b JR |
5110 | struct rule *old_rule, *new_rule; |
5111 | RULE_COLLECTIONS_FOR_EACH (old_rule, new_rule, old_rules, new_rules) { | |
81dee635 | 5112 | replace_rule_finish(ofproto, ofm, req, old_rule, new_rule, |
fe59694b | 5113 | &dead_cookies); |
39c94593 JR |
5114 | } |
5115 | learned_cookies_flush(ofproto, &dead_cookies); | |
cc099268 | 5116 | remove_rules_postponed(old_rules); |
39c94593 | 5117 | rule_collection_destroy(new_rules); |
d99f64d7 | 5118 | } |
d99f64d7 JR |
5119 | } |
5120 | ||
5bacd5cd JR |
5121 | static enum ofperr |
5122 | modify_flow_init_strict(struct ofproto *ofproto OVS_UNUSED, | |
5123 | struct ofproto_flow_mod *ofm, | |
5124 | const struct ofputil_flow_mod *fm) | |
5125 | OVS_EXCLUDED(ofproto_mutex) | |
5126 | { | |
5127 | rule_criteria_init(&ofm->criteria, fm->table_id, &fm->match, fm->priority, | |
5128 | OVS_VERSION_MAX, fm->cookie, fm->cookie_mask, OFPP_ANY, | |
5129 | OFPG_ANY); | |
5130 | rule_criteria_require_rw(&ofm->criteria, | |
5131 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
5132 | /* Must create a new flow in advance for the case that no matches are | |
5133 | * found. Also used for template for multiple modified flows. */ | |
5134 | add_flow_init(ofproto, ofm, fm); | |
5135 | ||
5136 | return 0; | |
5137 | } | |
5138 | ||
79eee1eb | 5139 | /* Implements OFPFC_MODIFY_STRICT. Returns 0 on success or an OpenFlow error |
baae3d02 | 5140 | * code on failure. */ |
90bf1e07 | 5141 | static enum ofperr |
8be00367 | 5142 | modify_flow_start_strict(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
15aaf599 | 5143 | OVS_REQUIRES(ofproto_mutex) |
79eee1eb | 5144 | { |
8be00367 | 5145 | struct rule_collection *old_rules = &ofm->old_rules; |
d51c8b71 | 5146 | enum ofperr error; |
6c1491fb | 5147 | |
5bacd5cd | 5148 | error = collect_rules_strict(ofproto, &ofm->criteria, old_rules); |
a9b22b7f | 5149 | |
a8e547c1 | 5150 | if (!error) { |
dd27be82 | 5151 | /* collect_rules_strict() can return max 1 rule. */ |
8be00367 | 5152 | error = modify_flows_start__(ofproto, ofm); |
d99f64d7 JR |
5153 | } |
5154 | ||
d99f64d7 JR |
5155 | return error; |
5156 | } | |
9ed18e46 BP |
5157 | \f |
5158 | /* OFPFC_DELETE implementation. */ | |
79eee1eb | 5159 | |
254750ce | 5160 | static void |
44e0c35d | 5161 | delete_flows_start__(struct ofproto *ofproto, ovs_version_t version, |
39c94593 JR |
5162 | const struct rule_collection *rules) |
5163 | OVS_REQUIRES(ofproto_mutex) | |
5164 | { | |
fe59694b JR |
5165 | struct rule *rule; |
5166 | ||
5167 | RULE_COLLECTION_FOR_EACH (rule, rules) { | |
d79e3d70 JR |
5168 | struct oftable *table = &ofproto->tables[rule->table_id]; |
5169 | ||
5170 | table->n_flows--; | |
8be00367 | 5171 | cls_rule_make_invisible_in_version(&rule->cr, version); |
9bab38ff JR |
5172 | |
5173 | /* Remove rule from ofproto data structures. */ | |
5174 | ofproto_rule_remove__(ofproto, rule); | |
39c94593 JR |
5175 | } |
5176 | } | |
5177 | ||
25070e04 JR |
5178 | static void |
5179 | delete_flows_revert__(struct ofproto *ofproto, | |
5180 | const struct rule_collection *rules) | |
5181 | OVS_REQUIRES(ofproto_mutex) | |
5182 | { | |
5183 | struct rule *rule; | |
5184 | ||
5185 | RULE_COLLECTION_FOR_EACH (rule, rules) { | |
5186 | struct oftable *table = &ofproto->tables[rule->table_id]; | |
5187 | ||
5188 | /* Add rule back to ofproto data structures. */ | |
5189 | ofproto_rule_insert__(ofproto, rule); | |
5190 | ||
5191 | /* Restore table's rule count. */ | |
5192 | table->n_flows++; | |
5193 | ||
5194 | /* Restore the original visibility of the rule. */ | |
5195 | cls_rule_restore_visibility(&rule->cr); | |
5196 | } | |
5197 | } | |
5198 | ||
39c94593 JR |
5199 | static void |
5200 | delete_flows_finish__(struct ofproto *ofproto, | |
5201 | struct rule_collection *rules, | |
5202 | enum ofp_flow_removed_reason reason, | |
0a0d9385 | 5203 | const struct openflow_mod_requester *req) |
15aaf599 | 5204 | OVS_REQUIRES(ofproto_mutex) |
064af421 | 5205 | { |
fe59694b | 5206 | if (rule_collection_n(rules)) { |
55951e15 | 5207 | struct ovs_list dead_cookies = OVS_LIST_INITIALIZER(&dead_cookies); |
fe59694b | 5208 | struct rule *rule; |
79eee1eb | 5209 | |
fe59694b | 5210 | RULE_COLLECTION_FOR_EACH (rule, rules) { |
f695ebfa JR |
5211 | /* This value will be used to send the flow removed message right |
5212 | * before the rule is actually destroyed. */ | |
5213 | rule->removed_reason = reason; | |
5214 | ||
9ca4a86f | 5215 | ofmonitor_report(ofproto->connmgr, rule, NXFME_DELETED, reason, |
c84d8691 JR |
5216 | req ? req->ofconn : NULL, |
5217 | req ? req->request->xid : 0, NULL); | |
6c6eedc5 SJ |
5218 | |
5219 | /* Send Vacancy Event for OF1.4+. */ | |
5220 | send_table_status(ofproto, rule->table_id); | |
5221 | ||
802f84ff JR |
5222 | learned_cookies_dec(ofproto, rule_get_actions(rule), |
5223 | &dead_cookies); | |
9ca4a86f | 5224 | } |
cc099268 | 5225 | remove_rules_postponed(rules); |
39c94593 | 5226 | |
35f48b8b | 5227 | learned_cookies_flush(ofproto, &dead_cookies); |
39c94593 JR |
5228 | } |
5229 | } | |
5230 | ||
5231 | /* Deletes the rules listed in 'rules'. | |
5232 | * The deleted rules will become invisible to the lookups in the next version. | |
5233 | * Destroys 'rules'. */ | |
5234 | static void | |
5235 | delete_flows__(struct rule_collection *rules, | |
5236 | enum ofp_flow_removed_reason reason, | |
0a0d9385 | 5237 | const struct openflow_mod_requester *req) |
39c94593 JR |
5238 | OVS_REQUIRES(ofproto_mutex) |
5239 | { | |
fe59694b JR |
5240 | if (rule_collection_n(rules)) { |
5241 | struct ofproto *ofproto = rule_collection_rules(rules)[0]->ofproto; | |
39c94593 | 5242 | |
8be00367 | 5243 | delete_flows_start__(ofproto, ofproto->tables_version + 1, rules); |
39c94593 JR |
5244 | ofproto_bump_tables_version(ofproto); |
5245 | delete_flows_finish__(ofproto, rules, reason, req); | |
9ca4a86f BP |
5246 | ofmonitor_flush(ofproto->connmgr); |
5247 | } | |
79eee1eb | 5248 | } |
79eee1eb | 5249 | |
5bacd5cd JR |
5250 | static enum ofperr |
5251 | delete_flows_init_loose(struct ofproto *ofproto OVS_UNUSED, | |
5252 | struct ofproto_flow_mod *ofm, | |
5253 | const struct ofputil_flow_mod *fm) | |
5254 | OVS_EXCLUDED(ofproto_mutex) | |
5255 | { | |
5256 | rule_criteria_init(&ofm->criteria, fm->table_id, &fm->match, 0, | |
5257 | OVS_VERSION_MAX, fm->cookie, fm->cookie_mask, | |
5258 | fm->out_port, fm->out_group); | |
5259 | rule_criteria_require_rw(&ofm->criteria, | |
5260 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
5261 | return 0; | |
5262 | } | |
5263 | ||
79eee1eb | 5264 | /* Implements OFPFC_DELETE. */ |
90bf1e07 | 5265 | static enum ofperr |
8be00367 | 5266 | delete_flows_start_loose(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
15aaf599 | 5267 | OVS_REQUIRES(ofproto_mutex) |
79eee1eb | 5268 | { |
8be00367 | 5269 | struct rule_collection *rules = &ofm->old_rules; |
90bf1e07 | 5270 | enum ofperr error; |
064af421 | 5271 | |
5bacd5cd | 5272 | error = collect_rules_loose(ofproto, &ofm->criteria, rules); |
a9b22b7f | 5273 | |
802f84ff | 5274 | if (!error) { |
8be00367 | 5275 | delete_flows_start__(ofproto, ofm->version, rules); |
a8e547c1 | 5276 | } |
a8e547c1 BP |
5277 | |
5278 | return error; | |
064af421 BP |
5279 | } |
5280 | ||
ce59413f | 5281 | static void |
8be00367 | 5282 | delete_flows_revert(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
ce59413f JR |
5283 | OVS_REQUIRES(ofproto_mutex) |
5284 | { | |
25070e04 | 5285 | delete_flows_revert__(ofproto, &ofm->old_rules); |
ce59413f JR |
5286 | } |
5287 | ||
1f42be1c | 5288 | static void |
39c94593 | 5289 | delete_flows_finish(struct ofproto *ofproto, |
8be00367 | 5290 | struct ofproto_flow_mod *ofm, |
0a0d9385 | 5291 | const struct openflow_mod_requester *req) |
15aaf599 | 5292 | OVS_REQUIRES(ofproto_mutex) |
79eee1eb | 5293 | { |
5aacc3e2 | 5294 | delete_flows_finish__(ofproto, &ofm->old_rules, OFPRR_DELETE, req); |
ce59413f JR |
5295 | } |
5296 | ||
5bacd5cd JR |
5297 | static enum ofperr |
5298 | delete_flows_init_strict(struct ofproto *ofproto OVS_UNUSED, | |
5299 | struct ofproto_flow_mod *ofm, | |
5300 | const struct ofputil_flow_mod *fm) | |
5301 | OVS_EXCLUDED(ofproto_mutex) | |
5302 | { | |
5303 | rule_criteria_init(&ofm->criteria, fm->table_id, &fm->match, fm->priority, | |
5304 | OVS_VERSION_MAX, fm->cookie, fm->cookie_mask, | |
5305 | fm->out_port, fm->out_group); | |
5306 | rule_criteria_require_rw(&ofm->criteria, | |
5307 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
5308 | return 0; | |
5309 | } | |
5310 | ||
ce59413f JR |
5311 | /* Implements OFPFC_DELETE_STRICT. */ |
5312 | static enum ofperr | |
4fcb2083 | 5313 | delete_flow_start_strict(struct ofproto *ofproto, |
8be00367 | 5314 | struct ofproto_flow_mod *ofm) |
ce59413f JR |
5315 | OVS_REQUIRES(ofproto_mutex) |
5316 | { | |
8be00367 | 5317 | struct rule_collection *rules = &ofm->old_rules; |
ce59413f JR |
5318 | enum ofperr error; |
5319 | ||
5bacd5cd | 5320 | error = collect_rules_strict(ofproto, &ofm->criteria, rules); |
a9b22b7f | 5321 | |
802f84ff | 5322 | if (!error) { |
8be00367 | 5323 | delete_flows_start__(ofproto, ofm->version, rules); |
ce59413f JR |
5324 | } |
5325 | ||
5326 | return error; | |
5327 | } | |
5328 | ||
f695ebfa | 5329 | /* This may only be called by rule_destroy_cb()! */ |
abe529af | 5330 | static void |
f695ebfa JR |
5331 | ofproto_rule_send_removed(struct rule *rule) |
5332 | OVS_EXCLUDED(ofproto_mutex) | |
abe529af BP |
5333 | { |
5334 | struct ofputil_flow_removed fr; | |
dc437090 | 5335 | long long int used; |
abe529af | 5336 | |
5cb7a798 | 5337 | minimatch_expand(&rule->cr.match, &fr.match); |
81a76618 | 5338 | fr.priority = rule->cr.priority; |
f695ebfa | 5339 | |
25010c68 JR |
5340 | /* Synchronize with connmgr_destroy() calls to prevent connmgr disappearing |
5341 | * while we use it. */ | |
f695ebfa | 5342 | ovs_mutex_lock(&ofproto_mutex); |
25010c68 JR |
5343 | struct connmgr *connmgr = rule->ofproto->connmgr; |
5344 | if (!connmgr) { | |
5345 | ovs_mutex_unlock(&ofproto_mutex); | |
5346 | return; | |
5347 | } | |
5348 | ||
abe529af | 5349 | fr.cookie = rule->flow_cookie; |
f695ebfa | 5350 | fr.reason = rule->removed_reason; |
95216219 | 5351 | fr.table_id = rule->table_id; |
65e0be10 BP |
5352 | calc_duration(rule->created, time_msec(), |
5353 | &fr.duration_sec, &fr.duration_nsec); | |
d10976b7 | 5354 | ovs_mutex_lock(&rule->mutex); |
abe529af | 5355 | fr.idle_timeout = rule->idle_timeout; |
fa2bad0f | 5356 | fr.hard_timeout = rule->hard_timeout; |
d10976b7 | 5357 | ovs_mutex_unlock(&rule->mutex); |
abe529af | 5358 | rule->ofproto->ofproto_class->rule_get_stats(rule, &fr.packet_count, |
dc437090 | 5359 | &fr.byte_count, &used); |
25010c68 | 5360 | connmgr_send_flow_removed(connmgr, &fr); |
f695ebfa | 5361 | ovs_mutex_unlock(&ofproto_mutex); |
abe529af BP |
5362 | } |
5363 | ||
5364 | /* Sends an OpenFlow "flow removed" message with the given 'reason' (either | |
5365 | * OFPRR_HARD_TIMEOUT or OFPRR_IDLE_TIMEOUT), and then removes 'rule' from its | |
5366 | * ofproto. | |
5367 | * | |
5368 | * ofproto implementation ->run() functions should use this function to expire | |
5369 | * OpenFlow flows. */ | |
5370 | void | |
5371 | ofproto_rule_expire(struct rule *rule, uint8_t reason) | |
15aaf599 | 5372 | OVS_REQUIRES(ofproto_mutex) |
abe529af | 5373 | { |
802f84ff JR |
5374 | struct rule_collection rules; |
5375 | ||
fe59694b JR |
5376 | rule_collection_init(&rules); |
5377 | rule_collection_add(&rules, rule); | |
802f84ff | 5378 | delete_flows__(&rules, reason, NULL); |
79eee1eb | 5379 | } |
994c9973 BP |
5380 | |
5381 | /* Reduces '*timeout' to no more than 'max'. A value of zero in either case | |
5382 | * means "infinite". */ | |
5383 | static void | |
5384 | reduce_timeout(uint16_t max, uint16_t *timeout) | |
5385 | { | |
5386 | if (max && (!*timeout || *timeout > max)) { | |
5387 | *timeout = max; | |
5388 | } | |
5389 | } | |
5390 | ||
5391 | /* If 'idle_timeout' is nonzero, and 'rule' has no idle timeout or an idle | |
5392 | * timeout greater than 'idle_timeout', lowers 'rule''s idle timeout to | |
5393 | * 'idle_timeout' seconds. Similarly for 'hard_timeout'. | |
5394 | * | |
5395 | * Suitable for implementing OFPACT_FIN_TIMEOUT. */ | |
5396 | void | |
5397 | ofproto_rule_reduce_timeouts(struct rule *rule, | |
5398 | uint16_t idle_timeout, uint16_t hard_timeout) | |
d10976b7 | 5399 | OVS_EXCLUDED(ofproto_mutex, rule->mutex) |
994c9973 BP |
5400 | { |
5401 | if (!idle_timeout && !hard_timeout) { | |
5402 | return; | |
5403 | } | |
5404 | ||
abe7b10f | 5405 | ovs_mutex_lock(&ofproto_mutex); |
417e7e66 BW |
5406 | if (ovs_list_is_empty(&rule->expirable)) { |
5407 | ovs_list_insert(&rule->ofproto->expirable, &rule->expirable); | |
994c9973 | 5408 | } |
abe7b10f | 5409 | ovs_mutex_unlock(&ofproto_mutex); |
994c9973 | 5410 | |
d10976b7 | 5411 | ovs_mutex_lock(&rule->mutex); |
994c9973 BP |
5412 | reduce_timeout(idle_timeout, &rule->idle_timeout); |
5413 | reduce_timeout(hard_timeout, &rule->hard_timeout); | |
d10976b7 | 5414 | ovs_mutex_unlock(&rule->mutex); |
994c9973 | 5415 | } |
79eee1eb | 5416 | \f |
90bf1e07 | 5417 | static enum ofperr |
2e4f5fcf | 5418 | handle_flow_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
15aaf599 | 5419 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 5420 | { |
a5b8d268 | 5421 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
7338102b | 5422 | struct ofputil_flow_mod fm; |
f25d0cf3 BP |
5423 | uint64_t ofpacts_stub[1024 / 8]; |
5424 | struct ofpbuf ofpacts; | |
90bf1e07 | 5425 | enum ofperr error; |
064af421 | 5426 | |
76589937 | 5427 | error = reject_slave_controller(ofconn); |
9deba63b | 5428 | if (error) { |
b0d38b2f | 5429 | return error; |
9deba63b | 5430 | } |
3052b0c5 | 5431 | |
f25d0cf3 | 5432 | ofpbuf_use_stub(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); |
7338102b | 5433 | error = ofputil_decode_flow_mod(&fm, oh, ofconn_get_protocol(ofconn), |
7e9f8266 BP |
5434 | &ofpacts, |
5435 | u16_to_ofp(ofproto->max_ports), | |
5436 | ofproto->n_tables); | |
548de4dd | 5437 | if (!error) { |
0a0d9385 | 5438 | struct openflow_mod_requester req = { ofconn, oh }; |
7338102b | 5439 | error = handle_flow_mod__(ofproto, &fm, &req); |
49bdc010 | 5440 | } |
2e310801 | 5441 | |
f25d0cf3 | 5442 | ofpbuf_uninit(&ofpacts); |
f25d0cf3 | 5443 | return error; |
75a75043 BP |
5444 | } |
5445 | ||
90bf1e07 | 5446 | static enum ofperr |
7338102b | 5447 | handle_flow_mod__(struct ofproto *ofproto, const struct ofputil_flow_mod *fm, |
0a0d9385 | 5448 | const struct openflow_mod_requester *req) |
15aaf599 | 5449 | OVS_EXCLUDED(ofproto_mutex) |
75a75043 | 5450 | { |
7338102b | 5451 | struct ofproto_flow_mod ofm; |
35412852 | 5452 | enum ofperr error; |
75a75043 | 5453 | |
5bacd5cd JR |
5454 | error = ofproto_flow_mod_init(ofproto, &ofm, fm); |
5455 | if (error) { | |
5456 | return error; | |
5457 | } | |
7338102b | 5458 | |
15aaf599 | 5459 | ovs_mutex_lock(&ofproto_mutex); |
7338102b JR |
5460 | ofm.version = ofproto->tables_version + 1; |
5461 | error = ofproto_flow_mod_start(ofproto, &ofm); | |
1f42be1c | 5462 | if (!error) { |
39c94593 | 5463 | ofproto_bump_tables_version(ofproto); |
7338102b | 5464 | ofproto_flow_mod_finish(ofproto, &ofm, req); |
3052b0c5 | 5465 | } |
baae3d02 | 5466 | ofmonitor_flush(ofproto->connmgr); |
15aaf599 | 5467 | ovs_mutex_unlock(&ofproto_mutex); |
35412852 | 5468 | |
35412852 | 5469 | return error; |
3052b0c5 BP |
5470 | } |
5471 | ||
90bf1e07 | 5472 | static enum ofperr |
d1e2cf21 | 5473 | handle_role_request(struct ofconn *ofconn, const struct ofp_header *oh) |
9deba63b | 5474 | { |
f4f1ea7e BP |
5475 | struct ofputil_role_request request; |
5476 | struct ofputil_role_request reply; | |
9deba63b | 5477 | struct ofpbuf *buf; |
6ea4776b JR |
5478 | enum ofperr error; |
5479 | ||
f4f1ea7e | 5480 | error = ofputil_decode_role_message(oh, &request); |
6ea4776b JR |
5481 | if (error) { |
5482 | return error; | |
5483 | } | |
9deba63b | 5484 | |
f4f1ea7e | 5485 | if (request.role != OFPCR12_ROLE_NOCHANGE) { |
d26eda9f BP |
5486 | if (request.role != OFPCR12_ROLE_EQUAL |
5487 | && request.have_generation_id | |
f4f1ea7e BP |
5488 | && !ofconn_set_master_election_id(ofconn, request.generation_id)) { |
5489 | return OFPERR_OFPRRFC_STALE; | |
6ea4776b | 5490 | } |
6ea4776b | 5491 | |
f4f1ea7e BP |
5492 | ofconn_set_role(ofconn, request.role); |
5493 | } | |
9deba63b | 5494 | |
f4f1ea7e | 5495 | reply.role = ofconn_get_role(ofconn); |
147cc9d3 BP |
5496 | reply.have_generation_id = ofconn_get_master_election_id( |
5497 | ofconn, &reply.generation_id); | |
f4f1ea7e | 5498 | buf = ofputil_encode_role_reply(oh, &reply); |
b0421aa2 | 5499 | ofconn_send_reply(ofconn, buf); |
9deba63b BP |
5500 | |
5501 | return 0; | |
5502 | } | |
5503 | ||
90bf1e07 | 5504 | static enum ofperr |
6c1491fb BP |
5505 | handle_nxt_flow_mod_table_id(struct ofconn *ofconn, |
5506 | const struct ofp_header *oh) | |
5507 | { | |
982697a4 | 5508 | const struct nx_flow_mod_table_id *msg = ofpmsg_body(oh); |
27527aa0 BP |
5509 | enum ofputil_protocol cur, next; |
5510 | ||
5511 | cur = ofconn_get_protocol(ofconn); | |
5512 | next = ofputil_protocol_set_tid(cur, msg->set != 0); | |
5513 | ofconn_set_protocol(ofconn, next); | |
6c1491fb | 5514 | |
6c1491fb BP |
5515 | return 0; |
5516 | } | |
5517 | ||
90bf1e07 | 5518 | static enum ofperr |
d1e2cf21 | 5519 | handle_nxt_set_flow_format(struct ofconn *ofconn, const struct ofp_header *oh) |
09246b99 | 5520 | { |
982697a4 | 5521 | const struct nx_set_flow_format *msg = ofpmsg_body(oh); |
27527aa0 BP |
5522 | enum ofputil_protocol cur, next; |
5523 | enum ofputil_protocol next_base; | |
09246b99 | 5524 | |
27527aa0 BP |
5525 | next_base = ofputil_nx_flow_format_to_protocol(ntohl(msg->format)); |
5526 | if (!next_base) { | |
90bf1e07 | 5527 | return OFPERR_OFPBRC_EPERM; |
09246b99 | 5528 | } |
7ee20df1 | 5529 | |
27527aa0 BP |
5530 | cur = ofconn_get_protocol(ofconn); |
5531 | next = ofputil_protocol_set_base(cur, next_base); | |
27527aa0 | 5532 | ofconn_set_protocol(ofconn, next); |
b20f4073 | 5533 | |
7ee20df1 | 5534 | return 0; |
09246b99 BP |
5535 | } |
5536 | ||
90bf1e07 | 5537 | static enum ofperr |
54834960 EJ |
5538 | handle_nxt_set_packet_in_format(struct ofconn *ofconn, |
5539 | const struct ofp_header *oh) | |
5540 | { | |
982697a4 | 5541 | const struct nx_set_packet_in_format *msg = ofpmsg_body(oh); |
54834960 EJ |
5542 | uint32_t format; |
5543 | ||
54834960 | 5544 | format = ntohl(msg->format); |
6409e008 | 5545 | if (!ofputil_packet_in_format_is_valid(format)) { |
90bf1e07 | 5546 | return OFPERR_OFPBRC_EPERM; |
54834960 EJ |
5547 | } |
5548 | ||
54834960 EJ |
5549 | ofconn_set_packet_in_format(ofconn, format); |
5550 | return 0; | |
5551 | } | |
5552 | ||
80d5aefd BP |
5553 | static enum ofperr |
5554 | handle_nxt_set_async_config(struct ofconn *ofconn, const struct ofp_header *oh) | |
5555 | { | |
5876b4db BP |
5556 | struct ofputil_async_cfg basis = ofconn_get_async_config(ofconn); |
5557 | struct ofputil_async_cfg ac; | |
d18cc1ee | 5558 | enum ofperr error; |
80d5aefd | 5559 | |
5876b4db | 5560 | error = ofputil_decode_set_async_config(oh, false, &basis, &ac); |
d18cc1ee AA |
5561 | if (error) { |
5562 | return error; | |
5563 | } | |
80d5aefd | 5564 | |
a930d4c5 | 5565 | ofconn_set_async_config(ofconn, &ac); |
4550b647 MM |
5566 | if (ofconn_get_type(ofconn) == OFCONN_SERVICE && |
5567 | !ofconn_get_miss_send_len(ofconn)) { | |
5568 | ofconn_set_miss_send_len(ofconn, OFP_DEFAULT_MISS_SEND_LEN); | |
5569 | } | |
80d5aefd BP |
5570 | |
5571 | return 0; | |
5572 | } | |
5573 | ||
c423b3b3 AC |
5574 | static enum ofperr |
5575 | handle_nxt_get_async_request(struct ofconn *ofconn, const struct ofp_header *oh) | |
5576 | { | |
a930d4c5 | 5577 | struct ofputil_async_cfg ac = ofconn_get_async_config(ofconn); |
af7bc161 | 5578 | ofconn_send_reply(ofconn, ofputil_encode_get_async_reply(oh, &ac)); |
c423b3b3 AC |
5579 | |
5580 | return 0; | |
5581 | } | |
5582 | ||
a7349929 BP |
5583 | static enum ofperr |
5584 | handle_nxt_set_controller_id(struct ofconn *ofconn, | |
5585 | const struct ofp_header *oh) | |
5586 | { | |
982697a4 | 5587 | const struct nx_controller_id *nci = ofpmsg_body(oh); |
a7349929 | 5588 | |
a7349929 BP |
5589 | if (!is_all_zeros(nci->zero, sizeof nci->zero)) { |
5590 | return OFPERR_NXBRC_MUST_BE_ZERO; | |
5591 | } | |
5592 | ||
5593 | ofconn_set_controller_id(ofconn, ntohs(nci->controller_id)); | |
5594 | return 0; | |
5595 | } | |
5596 | ||
90bf1e07 | 5597 | static enum ofperr |
d1e2cf21 | 5598 | handle_barrier_request(struct ofconn *ofconn, const struct ofp_header *oh) |
246e61ea | 5599 | { |
246e61ea JP |
5600 | struct ofpbuf *buf; |
5601 | ||
982697a4 BP |
5602 | buf = ofpraw_alloc_reply((oh->version == OFP10_VERSION |
5603 | ? OFPRAW_OFPT10_BARRIER_REPLY | |
5604 | : OFPRAW_OFPT11_BARRIER_REPLY), oh, 0); | |
b0421aa2 | 5605 | ofconn_send_reply(ofconn, buf); |
246e61ea JP |
5606 | return 0; |
5607 | } | |
5608 | ||
2b07c8b1 BP |
5609 | static void |
5610 | ofproto_compose_flow_refresh_update(const struct rule *rule, | |
5611 | enum nx_flow_monitor_flags flags, | |
ca6ba700 | 5612 | struct ovs_list *msgs) |
15aaf599 | 5613 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 | 5614 | { |
6f00e29b | 5615 | const struct rule_actions *actions; |
2b07c8b1 | 5616 | struct ofputil_flow_update fu; |
5cb7a798 | 5617 | struct match match; |
2b07c8b1 | 5618 | |
2b07c8b1 BP |
5619 | fu.event = (flags & (NXFMF_INITIAL | NXFMF_ADD) |
5620 | ? NXFME_ADDED : NXFME_MODIFIED); | |
5621 | fu.reason = 0; | |
d10976b7 | 5622 | ovs_mutex_lock(&rule->mutex); |
2b07c8b1 BP |
5623 | fu.idle_timeout = rule->idle_timeout; |
5624 | fu.hard_timeout = rule->hard_timeout; | |
d10976b7 | 5625 | ovs_mutex_unlock(&rule->mutex); |
2b07c8b1 BP |
5626 | fu.table_id = rule->table_id; |
5627 | fu.cookie = rule->flow_cookie; | |
5cb7a798 BP |
5628 | minimatch_expand(&rule->cr.match, &match); |
5629 | fu.match = &match; | |
6b140a4e | 5630 | fu.priority = rule->cr.priority; |
6f00e29b | 5631 | |
b20f4073 | 5632 | actions = flags & NXFMF_ACTIONS ? rule_get_actions(rule) : NULL; |
6f00e29b BP |
5633 | fu.ofpacts = actions ? actions->ofpacts : NULL; |
5634 | fu.ofpacts_len = actions ? actions->ofpacts_len : 0; | |
2b07c8b1 | 5635 | |
417e7e66 | 5636 | if (ovs_list_is_empty(msgs)) { |
2b07c8b1 BP |
5637 | ofputil_start_flow_update(msgs); |
5638 | } | |
5639 | ofputil_append_flow_update(&fu, msgs); | |
5640 | } | |
5641 | ||
5642 | void | |
a8e547c1 | 5643 | ofmonitor_compose_refresh_updates(struct rule_collection *rules, |
ca6ba700 | 5644 | struct ovs_list *msgs) |
15aaf599 | 5645 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 | 5646 | { |
fe59694b | 5647 | struct rule *rule; |
2b07c8b1 | 5648 | |
fe59694b | 5649 | RULE_COLLECTION_FOR_EACH (rule, rules) { |
2b07c8b1 BP |
5650 | enum nx_flow_monitor_flags flags = rule->monitor_flags; |
5651 | rule->monitor_flags = 0; | |
5652 | ||
5653 | ofproto_compose_flow_refresh_update(rule, flags, msgs); | |
5654 | } | |
5655 | } | |
5656 | ||
5657 | static void | |
5658 | ofproto_collect_ofmonitor_refresh_rule(const struct ofmonitor *m, | |
5659 | struct rule *rule, uint64_t seqno, | |
a8e547c1 | 5660 | struct rule_collection *rules) |
15aaf599 | 5661 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
5662 | { |
5663 | enum nx_flow_monitor_flags update; | |
5664 | ||
5e8b38b0 | 5665 | if (rule_is_hidden(rule)) { |
2b07c8b1 BP |
5666 | return; |
5667 | } | |
5668 | ||
b20f4073 | 5669 | if (!ofproto_rule_has_out_port(rule, m->out_port)) { |
2b07c8b1 BP |
5670 | return; |
5671 | } | |
5672 | ||
5673 | if (seqno) { | |
5674 | if (rule->add_seqno > seqno) { | |
5675 | update = NXFMF_ADD | NXFMF_MODIFY; | |
5676 | } else if (rule->modify_seqno > seqno) { | |
5677 | update = NXFMF_MODIFY; | |
5678 | } else { | |
5679 | return; | |
5680 | } | |
5681 | ||
5682 | if (!(m->flags & update)) { | |
5683 | return; | |
5684 | } | |
5685 | } else { | |
5686 | update = NXFMF_INITIAL; | |
5687 | } | |
5688 | ||
5689 | if (!rule->monitor_flags) { | |
a8e547c1 | 5690 | rule_collection_add(rules, rule); |
2b07c8b1 BP |
5691 | } |
5692 | rule->monitor_flags |= update | (m->flags & NXFMF_ACTIONS); | |
5693 | } | |
5694 | ||
5695 | static void | |
5696 | ofproto_collect_ofmonitor_refresh_rules(const struct ofmonitor *m, | |
5697 | uint64_t seqno, | |
a8e547c1 | 5698 | struct rule_collection *rules) |
15aaf599 | 5699 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
5700 | { |
5701 | const struct ofproto *ofproto = ofconn_get_ofproto(m->ofconn); | |
2b07c8b1 | 5702 | const struct oftable *table; |
81a76618 | 5703 | struct cls_rule target; |
2b07c8b1 | 5704 | |
bd53aa17 | 5705 | cls_rule_init_from_minimatch(&target, &m->match, 0); |
2b07c8b1 | 5706 | FOR_EACH_MATCHING_TABLE (table, m->table_id, ofproto) { |
2b07c8b1 BP |
5707 | struct rule *rule; |
5708 | ||
44e0c35d | 5709 | CLS_FOR_EACH_TARGET (rule, cr, &table->cls, &target, OVS_VERSION_MAX) { |
2b07c8b1 BP |
5710 | ofproto_collect_ofmonitor_refresh_rule(m, rule, seqno, rules); |
5711 | } | |
5712 | } | |
48d28ac1 | 5713 | cls_rule_destroy(&target); |
2b07c8b1 BP |
5714 | } |
5715 | ||
5716 | static void | |
5717 | ofproto_collect_ofmonitor_initial_rules(struct ofmonitor *m, | |
a8e547c1 | 5718 | struct rule_collection *rules) |
15aaf599 | 5719 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
5720 | { |
5721 | if (m->flags & NXFMF_INITIAL) { | |
5722 | ofproto_collect_ofmonitor_refresh_rules(m, 0, rules); | |
5723 | } | |
5724 | } | |
5725 | ||
5726 | void | |
5727 | ofmonitor_collect_resume_rules(struct ofmonitor *m, | |
a8e547c1 | 5728 | uint64_t seqno, struct rule_collection *rules) |
15aaf599 | 5729 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
5730 | { |
5731 | ofproto_collect_ofmonitor_refresh_rules(m, seqno, rules); | |
5732 | } | |
5733 | ||
7b900689 SH |
5734 | static enum ofperr |
5735 | flow_monitor_delete(struct ofconn *ofconn, uint32_t id) | |
5736 | OVS_REQUIRES(ofproto_mutex) | |
5737 | { | |
5738 | struct ofmonitor *m; | |
5739 | enum ofperr error; | |
5740 | ||
5741 | m = ofmonitor_lookup(ofconn, id); | |
5742 | if (m) { | |
5743 | ofmonitor_destroy(m); | |
5744 | error = 0; | |
5745 | } else { | |
5746 | error = OFPERR_OFPMOFC_UNKNOWN_MONITOR; | |
5747 | } | |
5748 | ||
5749 | return error; | |
5750 | } | |
5751 | ||
2b07c8b1 | 5752 | static enum ofperr |
982697a4 | 5753 | handle_flow_monitor_request(struct ofconn *ofconn, const struct ofp_header *oh) |
15aaf599 | 5754 | OVS_EXCLUDED(ofproto_mutex) |
2b07c8b1 BP |
5755 | { |
5756 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
2b07c8b1 | 5757 | |
0a2869d5 BP |
5758 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
5759 | ||
5760 | struct ofmonitor **monitors = NULL; | |
5761 | size_t allocated_monitors = 0; | |
5762 | size_t n_monitors = 0; | |
5763 | ||
5764 | enum ofperr error; | |
15aaf599 BP |
5765 | |
5766 | ovs_mutex_lock(&ofproto_mutex); | |
2b07c8b1 BP |
5767 | for (;;) { |
5768 | struct ofputil_flow_monitor_request request; | |
5769 | struct ofmonitor *m; | |
5770 | int retval; | |
5771 | ||
5772 | retval = ofputil_decode_flow_monitor_request(&request, &b); | |
5773 | if (retval == EOF) { | |
5774 | break; | |
5775 | } else if (retval) { | |
5776 | error = retval; | |
5777 | goto error; | |
5778 | } | |
5779 | ||
5780 | if (request.table_id != 0xff | |
5781 | && request.table_id >= ofproto->n_tables) { | |
5782 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
5783 | goto error; | |
5784 | } | |
5785 | ||
5786 | error = ofmonitor_create(&request, ofconn, &m); | |
5787 | if (error) { | |
5788 | goto error; | |
5789 | } | |
5790 | ||
5791 | if (n_monitors >= allocated_monitors) { | |
5792 | monitors = x2nrealloc(monitors, &allocated_monitors, | |
5793 | sizeof *monitors); | |
5794 | } | |
5795 | monitors[n_monitors++] = m; | |
5796 | } | |
5797 | ||
0a2869d5 | 5798 | struct rule_collection rules; |
a8e547c1 | 5799 | rule_collection_init(&rules); |
0a2869d5 | 5800 | for (size_t i = 0; i < n_monitors; i++) { |
2b07c8b1 BP |
5801 | ofproto_collect_ofmonitor_initial_rules(monitors[i], &rules); |
5802 | } | |
5803 | ||
0a2869d5 | 5804 | struct ovs_list replies; |
982697a4 | 5805 | ofpmp_init(&replies, oh); |
2b07c8b1 | 5806 | ofmonitor_compose_refresh_updates(&rules, &replies); |
15aaf599 BP |
5807 | ovs_mutex_unlock(&ofproto_mutex); |
5808 | ||
a8e547c1 BP |
5809 | rule_collection_destroy(&rules); |
5810 | ||
2b07c8b1 | 5811 | ofconn_send_replies(ofconn, &replies); |
2b07c8b1 BP |
5812 | free(monitors); |
5813 | ||
5814 | return 0; | |
5815 | ||
5816 | error: | |
0a2869d5 | 5817 | for (size_t i = 0; i < n_monitors; i++) { |
2b07c8b1 BP |
5818 | ofmonitor_destroy(monitors[i]); |
5819 | } | |
5820 | free(monitors); | |
4cd1bc9d BP |
5821 | ovs_mutex_unlock(&ofproto_mutex); |
5822 | ||
2b07c8b1 BP |
5823 | return error; |
5824 | } | |
5825 | ||
5826 | static enum ofperr | |
5827 | handle_flow_monitor_cancel(struct ofconn *ofconn, const struct ofp_header *oh) | |
15aaf599 | 5828 | OVS_EXCLUDED(ofproto_mutex) |
2b07c8b1 | 5829 | { |
15aaf599 | 5830 | enum ofperr error; |
2b07c8b1 BP |
5831 | uint32_t id; |
5832 | ||
5833 | id = ofputil_decode_flow_monitor_cancel(oh); | |
15aaf599 BP |
5834 | |
5835 | ovs_mutex_lock(&ofproto_mutex); | |
7b900689 | 5836 | error = flow_monitor_delete(ofconn, id); |
15aaf599 | 5837 | ovs_mutex_unlock(&ofproto_mutex); |
2b07c8b1 | 5838 | |
15aaf599 | 5839 | return error; |
2b07c8b1 BP |
5840 | } |
5841 | ||
9cae45dc JR |
5842 | /* Meters implementation. |
5843 | * | |
5844 | * Meter table entry, indexed by the OpenFlow meter_id. | |
9cae45dc JR |
5845 | * 'created' is used to compute the duration for meter stats. |
5846 | * 'list rules' is needed so that we can delete the dependent rules when the | |
5847 | * meter table entry is deleted. | |
5848 | * 'provider_meter_id' is for the provider's private use. | |
5849 | */ | |
5850 | struct meter { | |
5851 | long long int created; /* Time created. */ | |
ca6ba700 | 5852 | struct ovs_list rules; /* List of "struct rule_dpif"s. */ |
9cae45dc JR |
5853 | ofproto_meter_id provider_meter_id; |
5854 | uint16_t flags; /* Meter flags. */ | |
5855 | uint16_t n_bands; /* Number of meter bands. */ | |
5856 | struct ofputil_meter_band *bands; | |
5857 | }; | |
5858 | ||
5859 | /* | |
5860 | * This is used in instruction validation at flow set-up time, | |
5861 | * as flows may not use non-existing meters. | |
9cae45dc JR |
5862 | * Return value of UINT32_MAX signifies an invalid meter. |
5863 | */ | |
65efd2ab JR |
5864 | static uint32_t |
5865 | get_provider_meter_id(const struct ofproto *ofproto, uint32_t of_meter_id) | |
9cae45dc JR |
5866 | { |
5867 | if (of_meter_id && of_meter_id <= ofproto->meter_features.max_meters) { | |
5868 | const struct meter *meter = ofproto->meters[of_meter_id]; | |
5869 | if (meter) { | |
5870 | return meter->provider_meter_id.uint32; | |
5871 | } | |
5872 | } | |
5873 | return UINT32_MAX; | |
5874 | } | |
5875 | ||
062fea06 BP |
5876 | /* Finds the meter invoked by 'rule''s actions and adds 'rule' to the meter's |
5877 | * list of rules. */ | |
5878 | static void | |
5879 | meter_insert_rule(struct rule *rule) | |
5880 | { | |
5881 | const struct rule_actions *a = rule_get_actions(rule); | |
5882 | uint32_t meter_id = ofpacts_get_meter(a->ofpacts, a->ofpacts_len); | |
5883 | struct meter *meter = rule->ofproto->meters[meter_id]; | |
5884 | ||
417e7e66 | 5885 | ovs_list_insert(&meter->rules, &rule->meter_list_node); |
062fea06 BP |
5886 | } |
5887 | ||
9cae45dc JR |
5888 | static void |
5889 | meter_update(struct meter *meter, const struct ofputil_meter_config *config) | |
5890 | { | |
5891 | free(meter->bands); | |
5892 | ||
5893 | meter->flags = config->flags; | |
5894 | meter->n_bands = config->n_bands; | |
5895 | meter->bands = xmemdup(config->bands, | |
5896 | config->n_bands * sizeof *meter->bands); | |
5897 | } | |
5898 | ||
5899 | static struct meter * | |
5900 | meter_create(const struct ofputil_meter_config *config, | |
5901 | ofproto_meter_id provider_meter_id) | |
5902 | { | |
5903 | struct meter *meter; | |
5904 | ||
5905 | meter = xzalloc(sizeof *meter); | |
5906 | meter->provider_meter_id = provider_meter_id; | |
5907 | meter->created = time_msec(); | |
417e7e66 | 5908 | ovs_list_init(&meter->rules); |
9cae45dc JR |
5909 | |
5910 | meter_update(meter, config); | |
5911 | ||
5912 | return meter; | |
5913 | } | |
5914 | ||
6b3f7f02 JR |
5915 | static void |
5916 | meter_delete(struct ofproto *ofproto, uint32_t first, uint32_t last) | |
15aaf599 | 5917 | OVS_REQUIRES(ofproto_mutex) |
6b3f7f02 JR |
5918 | { |
5919 | uint32_t mid; | |
5920 | for (mid = first; mid <= last; ++mid) { | |
5921 | struct meter *meter = ofproto->meters[mid]; | |
5922 | if (meter) { | |
5923 | ofproto->meters[mid] = NULL; | |
5924 | ofproto->ofproto_class->meter_del(ofproto, | |
5925 | meter->provider_meter_id); | |
5926 | free(meter->bands); | |
5927 | free(meter); | |
5928 | } | |
5929 | } | |
5930 | } | |
5931 | ||
9cae45dc JR |
5932 | static enum ofperr |
5933 | handle_add_meter(struct ofproto *ofproto, struct ofputil_meter_mod *mm) | |
5934 | { | |
5935 | ofproto_meter_id provider_meter_id = { UINT32_MAX }; | |
5936 | struct meter **meterp = &ofproto->meters[mm->meter.meter_id]; | |
5937 | enum ofperr error; | |
5938 | ||
5939 | if (*meterp) { | |
5940 | return OFPERR_OFPMMFC_METER_EXISTS; | |
5941 | } | |
5942 | ||
5943 | error = ofproto->ofproto_class->meter_set(ofproto, &provider_meter_id, | |
5944 | &mm->meter); | |
5945 | if (!error) { | |
5946 | ovs_assert(provider_meter_id.uint32 != UINT32_MAX); | |
5947 | *meterp = meter_create(&mm->meter, provider_meter_id); | |
5948 | } | |
f0f8c6c2 | 5949 | return error; |
9cae45dc JR |
5950 | } |
5951 | ||
5952 | static enum ofperr | |
5953 | handle_modify_meter(struct ofproto *ofproto, struct ofputil_meter_mod *mm) | |
5954 | { | |
5955 | struct meter *meter = ofproto->meters[mm->meter.meter_id]; | |
5956 | enum ofperr error; | |
e555eb7c | 5957 | uint32_t provider_meter_id; |
9cae45dc JR |
5958 | |
5959 | if (!meter) { | |
5960 | return OFPERR_OFPMMFC_UNKNOWN_METER; | |
5961 | } | |
5962 | ||
e555eb7c | 5963 | provider_meter_id = meter->provider_meter_id.uint32; |
9cae45dc JR |
5964 | error = ofproto->ofproto_class->meter_set(ofproto, |
5965 | &meter->provider_meter_id, | |
5966 | &mm->meter); | |
e555eb7c | 5967 | ovs_assert(meter->provider_meter_id.uint32 == provider_meter_id); |
9cae45dc JR |
5968 | if (!error) { |
5969 | meter_update(meter, &mm->meter); | |
5970 | } | |
5971 | return error; | |
5972 | } | |
5973 | ||
5974 | static enum ofperr | |
baae3d02 | 5975 | handle_delete_meter(struct ofconn *ofconn, struct ofputil_meter_mod *mm) |
15aaf599 | 5976 | OVS_EXCLUDED(ofproto_mutex) |
9cae45dc JR |
5977 | { |
5978 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
5979 | uint32_t meter_id = mm->meter.meter_id; | |
a8e547c1 BP |
5980 | struct rule_collection rules; |
5981 | enum ofperr error = 0; | |
9cae45dc | 5982 | uint32_t first, last; |
9cae45dc JR |
5983 | |
5984 | if (meter_id == OFPM13_ALL) { | |
5985 | first = 1; | |
5986 | last = ofproto->meter_features.max_meters; | |
5987 | } else { | |
5988 | if (!meter_id || meter_id > ofproto->meter_features.max_meters) { | |
5989 | return 0; | |
5990 | } | |
5991 | first = last = meter_id; | |
5992 | } | |
5993 | ||
5994 | /* First delete the rules that use this meter. If any of those rules are | |
5995 | * currently being modified, postpone the whole operation until later. */ | |
a8e547c1 | 5996 | rule_collection_init(&rules); |
15aaf599 | 5997 | ovs_mutex_lock(&ofproto_mutex); |
9cae45dc JR |
5998 | for (meter_id = first; meter_id <= last; ++meter_id) { |
5999 | struct meter *meter = ofproto->meters[meter_id]; | |
417e7e66 | 6000 | if (meter && !ovs_list_is_empty(&meter->rules)) { |
9cae45dc JR |
6001 | struct rule *rule; |
6002 | ||
6003 | LIST_FOR_EACH (rule, meter_list_node, &meter->rules) { | |
a8e547c1 | 6004 | rule_collection_add(&rules, rule); |
9cae45dc JR |
6005 | } |
6006 | } | |
6007 | } | |
802f84ff | 6008 | delete_flows__(&rules, OFPRR_METER_DELETE, NULL); |
9cae45dc JR |
6009 | |
6010 | /* Delete the meters. */ | |
6b3f7f02 | 6011 | meter_delete(ofproto, first, last); |
9cae45dc | 6012 | |
15aaf599 | 6013 | ovs_mutex_unlock(&ofproto_mutex); |
a8e547c1 BP |
6014 | |
6015 | return error; | |
9cae45dc JR |
6016 | } |
6017 | ||
6018 | static enum ofperr | |
6019 | handle_meter_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
6020 | { | |
6021 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
6022 | struct ofputil_meter_mod mm; | |
6023 | uint64_t bands_stub[256 / 8]; | |
6024 | struct ofpbuf bands; | |
6025 | uint32_t meter_id; | |
6026 | enum ofperr error; | |
6027 | ||
6028 | error = reject_slave_controller(ofconn); | |
6029 | if (error) { | |
6030 | return error; | |
6031 | } | |
6032 | ||
6033 | ofpbuf_use_stub(&bands, bands_stub, sizeof bands_stub); | |
6034 | ||
6035 | error = ofputil_decode_meter_mod(oh, &mm, &bands); | |
6036 | if (error) { | |
6037 | goto exit_free_bands; | |
6038 | } | |
6039 | ||
6040 | meter_id = mm.meter.meter_id; | |
6041 | ||
6042 | if (mm.command != OFPMC13_DELETE) { | |
6043 | /* Fails also when meters are not implemented by the provider. */ | |
b31e8700 | 6044 | if (meter_id == 0 || meter_id > OFPM13_MAX) { |
9cae45dc JR |
6045 | error = OFPERR_OFPMMFC_INVALID_METER; |
6046 | goto exit_free_bands; | |
b31e8700 JR |
6047 | } else if (meter_id > ofproto->meter_features.max_meters) { |
6048 | error = OFPERR_OFPMMFC_OUT_OF_METERS; | |
6049 | goto exit_free_bands; | |
9cae45dc JR |
6050 | } |
6051 | if (mm.meter.n_bands > ofproto->meter_features.max_bands) { | |
6052 | error = OFPERR_OFPMMFC_OUT_OF_BANDS; | |
6053 | goto exit_free_bands; | |
6054 | } | |
6055 | } | |
6056 | ||
6057 | switch (mm.command) { | |
6058 | case OFPMC13_ADD: | |
6059 | error = handle_add_meter(ofproto, &mm); | |
6060 | break; | |
6061 | ||
6062 | case OFPMC13_MODIFY: | |
6063 | error = handle_modify_meter(ofproto, &mm); | |
6064 | break; | |
6065 | ||
6066 | case OFPMC13_DELETE: | |
baae3d02 | 6067 | error = handle_delete_meter(ofconn, &mm); |
9cae45dc JR |
6068 | break; |
6069 | ||
6070 | default: | |
6071 | error = OFPERR_OFPMMFC_BAD_COMMAND; | |
6072 | break; | |
6073 | } | |
6074 | ||
3c35db62 NR |
6075 | if (!error) { |
6076 | struct ofputil_requestforward rf; | |
6077 | rf.xid = oh->xid; | |
6078 | rf.reason = OFPRFR_METER_MOD; | |
6079 | rf.meter_mod = &mm; | |
6080 | connmgr_send_requestforward(ofproto->connmgr, ofconn, &rf); | |
6081 | } | |
6082 | ||
9cae45dc JR |
6083 | exit_free_bands: |
6084 | ofpbuf_uninit(&bands); | |
6085 | return error; | |
6086 | } | |
6087 | ||
6088 | static enum ofperr | |
6089 | handle_meter_features_request(struct ofconn *ofconn, | |
6090 | const struct ofp_header *request) | |
6091 | { | |
6092 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
6093 | struct ofputil_meter_features features; | |
6094 | struct ofpbuf *b; | |
6095 | ||
6096 | if (ofproto->ofproto_class->meter_get_features) { | |
6097 | ofproto->ofproto_class->meter_get_features(ofproto, &features); | |
6098 | } else { | |
6099 | memset(&features, 0, sizeof features); | |
6100 | } | |
6101 | b = ofputil_encode_meter_features_reply(&features, request); | |
6102 | ||
6103 | ofconn_send_reply(ofconn, b); | |
6104 | return 0; | |
6105 | } | |
6106 | ||
6107 | static enum ofperr | |
6108 | handle_meter_request(struct ofconn *ofconn, const struct ofp_header *request, | |
6109 | enum ofptype type) | |
6110 | { | |
6111 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
ca6ba700 | 6112 | struct ovs_list replies; |
9cae45dc JR |
6113 | uint64_t bands_stub[256 / 8]; |
6114 | struct ofpbuf bands; | |
6115 | uint32_t meter_id, first, last; | |
6116 | ||
6117 | ofputil_decode_meter_request(request, &meter_id); | |
6118 | ||
6119 | if (meter_id == OFPM13_ALL) { | |
6120 | first = 1; | |
6121 | last = ofproto->meter_features.max_meters; | |
6122 | } else { | |
6123 | if (!meter_id || meter_id > ofproto->meter_features.max_meters || | |
6124 | !ofproto->meters[meter_id]) { | |
6125 | return OFPERR_OFPMMFC_UNKNOWN_METER; | |
6126 | } | |
6127 | first = last = meter_id; | |
6128 | } | |
6129 | ||
6130 | ofpbuf_use_stub(&bands, bands_stub, sizeof bands_stub); | |
6131 | ofpmp_init(&replies, request); | |
6132 | ||
6133 | for (meter_id = first; meter_id <= last; ++meter_id) { | |
6134 | struct meter *meter = ofproto->meters[meter_id]; | |
6135 | if (!meter) { | |
6136 | continue; /* Skip non-existing meters. */ | |
6137 | } | |
261bd854 | 6138 | if (type == OFPTYPE_METER_STATS_REQUEST) { |
9cae45dc JR |
6139 | struct ofputil_meter_stats stats; |
6140 | ||
6141 | stats.meter_id = meter_id; | |
6142 | ||
6143 | /* Provider sets the packet and byte counts, we do the rest. */ | |
417e7e66 | 6144 | stats.flow_count = ovs_list_size(&meter->rules); |
9cae45dc JR |
6145 | calc_duration(meter->created, time_msec(), |
6146 | &stats.duration_sec, &stats.duration_nsec); | |
6147 | stats.n_bands = meter->n_bands; | |
6148 | ofpbuf_clear(&bands); | |
6149 | stats.bands | |
6150 | = ofpbuf_put_uninit(&bands, | |
6151 | meter->n_bands * sizeof *stats.bands); | |
6152 | ||
6153 | if (!ofproto->ofproto_class->meter_get(ofproto, | |
6154 | meter->provider_meter_id, | |
6155 | &stats)) { | |
6156 | ofputil_append_meter_stats(&replies, &stats); | |
6157 | } | |
6158 | } else { /* type == OFPTYPE_METER_CONFIG_REQUEST */ | |
6159 | struct ofputil_meter_config config; | |
6160 | ||
6161 | config.meter_id = meter_id; | |
6162 | config.flags = meter->flags; | |
6163 | config.n_bands = meter->n_bands; | |
6164 | config.bands = meter->bands; | |
6165 | ofputil_append_meter_config(&replies, &config); | |
6166 | } | |
6167 | } | |
6168 | ||
6169 | ofconn_send_replies(ofconn, &replies); | |
6170 | ofpbuf_uninit(&bands); | |
6171 | return 0; | |
6172 | } | |
6173 | ||
db88b35c JR |
6174 | /* Returned group is RCU protected. */ |
6175 | static struct ofgroup * | |
5d08a275 JR |
6176 | ofproto_group_lookup__(const struct ofproto *ofproto, uint32_t group_id, |
6177 | ovs_version_t version) | |
db88b35c JR |
6178 | { |
6179 | struct ofgroup *group; | |
6180 | ||
6181 | CMAP_FOR_EACH_WITH_HASH (group, cmap_node, hash_int(group_id, 0), | |
6182 | &ofproto->groups) { | |
5d08a275 JR |
6183 | if (group->group_id == group_id |
6184 | && versions_visible_in_version(&group->versions, version)) { | |
db88b35c | 6185 | return group; |
7395c052 NZ |
6186 | } |
6187 | } | |
3fc3b679 | 6188 | |
db88b35c | 6189 | return NULL; |
7395c052 NZ |
6190 | } |
6191 | ||
3fc3b679 AZ |
6192 | /* If the group exists, this function increments the groups's reference count. |
6193 | * | |
6194 | * Make sure to call ofproto_group_unref() after no longer needing to maintain | |
6195 | * a reference to the group. */ | |
db88b35c | 6196 | struct ofgroup * |
76973237 | 6197 | ofproto_group_lookup(const struct ofproto *ofproto, uint32_t group_id, |
5d08a275 | 6198 | ovs_version_t version, bool take_ref) |
7395c052 | 6199 | { |
db88b35c | 6200 | struct ofgroup *group; |
7395c052 | 6201 | |
5d08a275 | 6202 | group = ofproto_group_lookup__(ofproto, group_id, version); |
76973237 | 6203 | if (group && take_ref) { |
db88b35c JR |
6204 | /* Not holding a lock, so it is possible that another thread releases |
6205 | * the last reference just before we manage to get one. */ | |
6206 | return ofproto_group_try_ref(group) ? group : NULL; | |
7395c052 | 6207 | } |
76973237 | 6208 | return group; |
7395c052 NZ |
6209 | } |
6210 | ||
cc099268 | 6211 | /* Caller should hold 'ofproto_mutex' if it is important that the |
db88b35c | 6212 | * group is not removed by someone else. */ |
7e9f8266 BP |
6213 | static bool |
6214 | ofproto_group_exists(const struct ofproto *ofproto, uint32_t group_id) | |
7e9f8266 | 6215 | { |
5d08a275 | 6216 | return ofproto_group_lookup__(ofproto, group_id, OVS_VERSION_MAX) != NULL; |
7e9f8266 BP |
6217 | } |
6218 | ||
cc099268 JR |
6219 | static void |
6220 | group_add_rule(struct ofgroup *group, struct rule *rule) | |
732feb93 | 6221 | { |
cc099268 JR |
6222 | rule_collection_add(&group->rules, rule); |
6223 | } | |
732feb93 | 6224 | |
cc099268 JR |
6225 | static void |
6226 | group_remove_rule(struct ofgroup *group, struct rule *rule) | |
6227 | { | |
6228 | rule_collection_remove(&group->rules, rule); | |
732feb93 SH |
6229 | } |
6230 | ||
7395c052 | 6231 | static void |
ca6ba700 | 6232 | append_group_stats(struct ofgroup *group, struct ovs_list *replies) |
cc099268 | 6233 | OVS_REQUIRES(ofproto_mutex) |
7395c052 NZ |
6234 | { |
6235 | struct ofputil_group_stats ogs; | |
eaf004bd | 6236 | const struct ofproto *ofproto = group->ofproto; |
7395c052 NZ |
6237 | long long int now = time_msec(); |
6238 | int error; | |
6239 | ||
646b2a9c SH |
6240 | ogs.bucket_stats = xmalloc(group->n_buckets * sizeof *ogs.bucket_stats); |
6241 | ||
732feb93 | 6242 | /* Provider sets the packet and byte counts, we do the rest. */ |
fe59694b | 6243 | ogs.ref_count = rule_collection_n(&group->rules); |
732feb93 SH |
6244 | ogs.n_buckets = group->n_buckets; |
6245 | ||
7395c052 NZ |
6246 | error = (ofproto->ofproto_class->group_get_stats |
6247 | ? ofproto->ofproto_class->group_get_stats(group, &ogs) | |
6248 | : EOPNOTSUPP); | |
6249 | if (error) { | |
7395c052 NZ |
6250 | ogs.packet_count = UINT64_MAX; |
6251 | ogs.byte_count = UINT64_MAX; | |
7395c052 NZ |
6252 | memset(ogs.bucket_stats, 0xff, |
6253 | ogs.n_buckets * sizeof *ogs.bucket_stats); | |
6254 | } | |
6255 | ||
6256 | ogs.group_id = group->group_id; | |
6257 | calc_duration(group->created, now, &ogs.duration_sec, &ogs.duration_nsec); | |
6258 | ||
6259 | ofputil_append_group_stats(replies, &ogs); | |
646b2a9c SH |
6260 | |
6261 | free(ogs.bucket_stats); | |
7395c052 NZ |
6262 | } |
6263 | ||
19187a71 BP |
6264 | static void |
6265 | handle_group_request(struct ofconn *ofconn, | |
6266 | const struct ofp_header *request, uint32_t group_id, | |
ca6ba700 | 6267 | void (*cb)(struct ofgroup *, struct ovs_list *replies)) |
cc099268 | 6268 | OVS_EXCLUDED(ofproto_mutex) |
7395c052 NZ |
6269 | { |
6270 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
7395c052 | 6271 | struct ofgroup *group; |
ca6ba700 | 6272 | struct ovs_list replies; |
7395c052 NZ |
6273 | |
6274 | ofpmp_init(&replies, request); | |
cc099268 JR |
6275 | /* Must exclude modifications to guarantee iterating groups. */ |
6276 | ovs_mutex_lock(&ofproto_mutex); | |
7395c052 | 6277 | if (group_id == OFPG_ALL) { |
db88b35c | 6278 | CMAP_FOR_EACH (group, cmap_node, &ofproto->groups) { |
19187a71 | 6279 | cb(group, &replies); |
7395c052 | 6280 | } |
7395c052 | 6281 | } else { |
5d08a275 | 6282 | group = ofproto_group_lookup__(ofproto, group_id, OVS_VERSION_MAX); |
db88b35c | 6283 | if (group) { |
19187a71 | 6284 | cb(group, &replies); |
7395c052 NZ |
6285 | } |
6286 | } | |
cc099268 | 6287 | ovs_mutex_unlock(&ofproto_mutex); |
7395c052 | 6288 | ofconn_send_replies(ofconn, &replies); |
7395c052 NZ |
6289 | } |
6290 | ||
6291 | static enum ofperr | |
19187a71 BP |
6292 | handle_group_stats_request(struct ofconn *ofconn, |
6293 | const struct ofp_header *request) | |
7395c052 | 6294 | { |
19187a71 BP |
6295 | uint32_t group_id; |
6296 | enum ofperr error; | |
7395c052 | 6297 | |
19187a71 BP |
6298 | error = ofputil_decode_group_stats_request(request, &group_id); |
6299 | if (error) { | |
6300 | return error; | |
7395c052 | 6301 | } |
7395c052 | 6302 | |
19187a71 BP |
6303 | handle_group_request(ofconn, request, group_id, append_group_stats); |
6304 | return 0; | |
6305 | } | |
6306 | ||
6307 | static void | |
ca6ba700 | 6308 | append_group_desc(struct ofgroup *group, struct ovs_list *replies) |
19187a71 BP |
6309 | { |
6310 | struct ofputil_group_desc gds; | |
7395c052 | 6311 | |
19187a71 BP |
6312 | gds.group_id = group->group_id; |
6313 | gds.type = group->type; | |
53eb84a5 SH |
6314 | gds.props = group->props; |
6315 | ||
19187a71 BP |
6316 | ofputil_append_group_desc_reply(&gds, &group->buckets, replies); |
6317 | } | |
6318 | ||
6319 | static enum ofperr | |
6320 | handle_group_desc_stats_request(struct ofconn *ofconn, | |
6321 | const struct ofp_header *request) | |
6322 | { | |
6323 | handle_group_request(ofconn, request, | |
6324 | ofputil_decode_group_desc_request(request), | |
6325 | append_group_desc); | |
7395c052 NZ |
6326 | return 0; |
6327 | } | |
6328 | ||
6329 | static enum ofperr | |
6330 | handle_group_features_stats_request(struct ofconn *ofconn, | |
6331 | const struct ofp_header *request) | |
6332 | { | |
6333 | struct ofproto *p = ofconn_get_ofproto(ofconn); | |
6334 | struct ofpbuf *msg; | |
6335 | ||
6336 | msg = ofputil_encode_group_features_reply(&p->ogf, request); | |
6337 | if (msg) { | |
6338 | ofconn_send_reply(ofconn, msg); | |
6339 | } | |
6340 | ||
6341 | return 0; | |
6342 | } | |
6343 | ||
56085be5 | 6344 | static void |
e016fb63 BP |
6345 | put_queue_get_config_reply(struct ofport *port, uint32_t queue, |
6346 | struct ovs_list *replies) | |
e8f9a7bb | 6347 | { |
e016fb63 | 6348 | struct ofputil_queue_config qc; |
e8f9a7bb | 6349 | |
e016fb63 BP |
6350 | /* None of the existing queues have compatible properties, so we hard-code |
6351 | * omitting min_rate and max_rate. */ | |
6352 | qc.port = port->ofp_port; | |
6353 | qc.queue = queue; | |
6354 | qc.min_rate = UINT16_MAX; | |
6355 | qc.max_rate = UINT16_MAX; | |
6356 | ofputil_append_queue_get_config_reply(&qc, replies); | |
6357 | } | |
e8f9a7bb | 6358 | |
e016fb63 BP |
6359 | static int |
6360 | handle_queue_get_config_request_for_port(struct ofport *port, uint32_t queue, | |
6361 | struct ovs_list *replies) | |
6362 | { | |
6363 | struct smap details = SMAP_INITIALIZER(&details); | |
6364 | if (queue != OFPQ_ALL) { | |
6365 | int error = netdev_get_queue(port->netdev, queue, &details); | |
6366 | switch (error) { | |
6367 | case 0: | |
6368 | put_queue_get_config_reply(port, queue, replies); | |
6369 | break; | |
6370 | case EOPNOTSUPP: | |
6371 | case EINVAL: | |
6372 | return OFPERR_OFPQOFC_BAD_QUEUE; | |
6373 | default: | |
6374 | return OFPERR_NXQOFC_QUEUE_ERROR; | |
6375 | } | |
6376 | } else { | |
6377 | struct netdev_queue_dump queue_dump; | |
6378 | uint32_t queue_id; | |
6379 | ||
6380 | NETDEV_QUEUE_FOR_EACH (&queue_id, &details, &queue_dump, | |
6381 | port->netdev) { | |
6382 | put_queue_get_config_reply(port, queue_id, replies); | |
6383 | } | |
6384 | } | |
6385 | smap_destroy(&details); | |
6386 | return 0; | |
56085be5 BP |
6387 | } |
6388 | ||
6389 | static enum ofperr | |
6390 | handle_queue_get_config_request(struct ofconn *ofconn, | |
6391 | const struct ofp_header *oh) | |
6392 | { | |
e016fb63 BP |
6393 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
6394 | struct ovs_list replies; | |
6395 | struct ofport *port; | |
6396 | ofp_port_t req_port; | |
6397 | uint32_t req_queue; | |
6398 | enum ofperr error; | |
6399 | ||
6400 | error = ofputil_decode_queue_get_config_request(oh, &req_port, &req_queue); | |
6401 | if (error) { | |
6402 | return error; | |
6403 | } | |
6404 | ||
6405 | ofputil_start_queue_get_config_reply(oh, &replies); | |
6406 | if (req_port == OFPP_ANY) { | |
6407 | error = OFPERR_OFPQOFC_BAD_QUEUE; | |
6408 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { | |
6409 | if (!handle_queue_get_config_request_for_port(port, req_queue, | |
6410 | &replies)) { | |
6411 | error = 0; | |
6412 | } | |
6413 | } | |
6414 | } else { | |
6415 | port = ofproto_get_port(ofproto, req_port); | |
6416 | error = (port | |
6417 | ? handle_queue_get_config_request_for_port(port, req_queue, | |
6418 | &replies) | |
6419 | : OFPERR_OFPQOFC_BAD_PORT); | |
6420 | } | |
6421 | if (!error) { | |
6422 | ofconn_send_replies(ofconn, &replies); | |
6423 | } else { | |
6424 | ofpbuf_list_delete(&replies); | |
6425 | } | |
6426 | ||
6427 | return error; | |
e8f9a7bb VG |
6428 | } |
6429 | ||
809c7548 | 6430 | static enum ofperr |
63eded98 | 6431 | init_group(struct ofproto *ofproto, const struct ofputil_group_mod *gm, |
5d08a275 | 6432 | ovs_version_t version, struct ofgroup **ofgroup) |
809c7548 RW |
6433 | { |
6434 | enum ofperr error; | |
eaf004bd | 6435 | const long long int now = time_msec(); |
809c7548 RW |
6436 | |
6437 | if (gm->group_id > OFPG_MAX) { | |
6438 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
6439 | } | |
6440 | if (gm->type > OFPGT11_FF) { | |
6441 | return OFPERR_OFPGMFC_BAD_TYPE; | |
6442 | } | |
6443 | ||
6444 | *ofgroup = ofproto->ofproto_class->group_alloc(); | |
6445 | if (!*ofgroup) { | |
6446 | VLOG_WARN_RL(&rl, "%s: failed to allocate group", ofproto->name); | |
6447 | return OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
6448 | } | |
6449 | ||
5d08a275 | 6450 | *CONST_CAST(struct ofproto **, &(*ofgroup)->ofproto) = ofproto; |
eaf004bd AZ |
6451 | *CONST_CAST(uint32_t *, &((*ofgroup)->group_id)) = gm->group_id; |
6452 | *CONST_CAST(enum ofp11_group_type *, &(*ofgroup)->type) = gm->type; | |
6453 | *CONST_CAST(long long int *, &((*ofgroup)->created)) = now; | |
6454 | *CONST_CAST(long long int *, &((*ofgroup)->modified)) = now; | |
809c7548 | 6455 | ovs_refcount_init(&(*ofgroup)->ref_count); |
cc099268 | 6456 | (*ofgroup)->being_deleted = false; |
809c7548 | 6457 | |
db88b35c JR |
6458 | ovs_list_init(CONST_CAST(struct ovs_list *, &(*ofgroup)->buckets)); |
6459 | ofputil_bucket_clone_list(CONST_CAST(struct ovs_list *, | |
6460 | &(*ofgroup)->buckets), | |
6461 | &gm->buckets, NULL); | |
63eded98 | 6462 | |
eaf004bd | 6463 | *CONST_CAST(uint32_t *, &(*ofgroup)->n_buckets) = |
417e7e66 | 6464 | ovs_list_size(&(*ofgroup)->buckets); |
809c7548 | 6465 | |
e8dba719 JR |
6466 | ofputil_group_properties_copy(CONST_CAST(struct ofputil_group_props *, |
6467 | &(*ofgroup)->props), | |
6468 | &gm->props); | |
cc099268 | 6469 | rule_collection_init(&(*ofgroup)->rules); |
bc65c25a | 6470 | |
5d08a275 JR |
6471 | /* Make group visible from 'version'. */ |
6472 | (*ofgroup)->versions = VERSIONS_INITIALIZER(version, | |
6473 | OVS_VERSION_NOT_REMOVED); | |
6474 | ||
809c7548 RW |
6475 | /* Construct called BEFORE any locks are held. */ |
6476 | error = ofproto->ofproto_class->group_construct(*ofgroup); | |
6477 | if (error) { | |
e8dba719 JR |
6478 | ofputil_group_properties_destroy(CONST_CAST(struct ofputil_group_props *, |
6479 | &(*ofgroup)->props)); | |
db88b35c JR |
6480 | ofputil_bucket_list_destroy(CONST_CAST(struct ovs_list *, |
6481 | &(*ofgroup)->buckets)); | |
809c7548 RW |
6482 | ofproto->ofproto_class->group_dealloc(*ofgroup); |
6483 | } | |
6484 | return error; | |
6485 | } | |
6486 | ||
6c5b90ce BP |
6487 | /* Implements the OFPGC11_ADD operation specified by 'gm', adding a group to |
6488 | * 'ofproto''s group table. Returns 0 on success or an OpenFlow error code on | |
6489 | * failure. */ | |
7395c052 | 6490 | static enum ofperr |
2b0b0b80 | 6491 | add_group_start(struct ofproto *ofproto, struct ofproto_group_mod *ogm) |
cc099268 | 6492 | OVS_REQUIRES(ofproto_mutex) |
7395c052 | 6493 | { |
7395c052 NZ |
6494 | enum ofperr error; |
6495 | ||
2b0b0b80 JR |
6496 | if (ofproto_group_exists(ofproto, ogm->gm.group_id)) { |
6497 | return OFPERR_OFPGMFC_GROUP_EXISTS; | |
7395c052 NZ |
6498 | } |
6499 | ||
2b0b0b80 JR |
6500 | if (ofproto->n_groups[ogm->gm.type] |
6501 | >= ofproto->ogf.max_groups[ogm->gm.type]) { | |
6502 | return OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
7395c052 NZ |
6503 | } |
6504 | ||
2b0b0b80 | 6505 | /* Allocate new group and initialize it. */ |
5d08a275 | 6506 | error = init_group(ofproto, &ogm->gm, ogm->version, &ogm->new_group); |
2b0b0b80 JR |
6507 | if (!error) { |
6508 | /* Insert new group. */ | |
6509 | cmap_insert(&ofproto->groups, &ogm->new_group->cmap_node, | |
6510 | hash_int(ogm->new_group->group_id, 0)); | |
6511 | ofproto->n_groups[ogm->new_group->type]++; | |
7395c052 | 6512 | } |
7395c052 NZ |
6513 | return error; |
6514 | } | |
6515 | ||
fce4730c SH |
6516 | /* Adds all of the buckets from 'ofgroup' to 'new_ofgroup'. The buckets |
6517 | * already in 'new_ofgroup' will be placed just after the (copy of the) bucket | |
6518 | * in 'ofgroup' with bucket ID 'command_bucket_id'. Special | |
6519 | * 'command_bucket_id' values OFPG15_BUCKET_FIRST and OFPG15_BUCKET_LAST are | |
6520 | * also honored. */ | |
6521 | static enum ofperr | |
6522 | copy_buckets_for_insert_bucket(const struct ofgroup *ofgroup, | |
6523 | struct ofgroup *new_ofgroup, | |
6524 | uint32_t command_bucket_id) | |
6525 | { | |
6526 | struct ofputil_bucket *last = NULL; | |
6527 | ||
6528 | if (command_bucket_id <= OFPG15_BUCKET_MAX) { | |
6529 | /* Check here to ensure that a bucket corresponding to | |
6530 | * command_bucket_id exists in the old bucket list. | |
6531 | * | |
6532 | * The subsequent search of below of new_ofgroup covers | |
6533 | * both buckets in the old bucket list and buckets added | |
6534 | * by the insert buckets group mod message this function processes. */ | |
6535 | if (!ofputil_bucket_find(&ofgroup->buckets, command_bucket_id)) { | |
6536 | return OFPERR_OFPGMFC_UNKNOWN_BUCKET; | |
6537 | } | |
6538 | ||
417e7e66 | 6539 | if (!ovs_list_is_empty(&new_ofgroup->buckets)) { |
fce4730c SH |
6540 | last = ofputil_bucket_list_back(&new_ofgroup->buckets); |
6541 | } | |
6542 | } | |
6543 | ||
db88b35c JR |
6544 | ofputil_bucket_clone_list(CONST_CAST(struct ovs_list *, |
6545 | &new_ofgroup->buckets), | |
6546 | &ofgroup->buckets, NULL); | |
fce4730c | 6547 | |
23a31238 | 6548 | if (ofputil_bucket_check_duplicate_id(&new_ofgroup->buckets)) { |
d2873d53 | 6549 | VLOG_INFO_RL(&rl, "Duplicate bucket id"); |
fce4730c SH |
6550 | return OFPERR_OFPGMFC_BUCKET_EXISTS; |
6551 | } | |
6552 | ||
6553 | /* Rearrange list according to command_bucket_id */ | |
6554 | if (command_bucket_id == OFPG15_BUCKET_LAST) { | |
417e7e66 | 6555 | if (!ovs_list_is_empty(&ofgroup->buckets)) { |
8e19e655 BP |
6556 | struct ofputil_bucket *new_first; |
6557 | const struct ofputil_bucket *first; | |
fce4730c | 6558 | |
8e19e655 BP |
6559 | first = ofputil_bucket_list_front(&ofgroup->buckets); |
6560 | new_first = ofputil_bucket_find(&new_ofgroup->buckets, | |
6561 | first->bucket_id); | |
fce4730c | 6562 | |
417e7e66 | 6563 | ovs_list_splice(new_ofgroup->buckets.next, &new_first->list_node, |
db88b35c JR |
6564 | CONST_CAST(struct ovs_list *, |
6565 | &new_ofgroup->buckets)); | |
8e19e655 | 6566 | } |
fce4730c SH |
6567 | } else if (command_bucket_id <= OFPG15_BUCKET_MAX && last) { |
6568 | struct ofputil_bucket *after; | |
6569 | ||
6570 | /* Presence of bucket is checked above so after should never be NULL */ | |
6571 | after = ofputil_bucket_find(&new_ofgroup->buckets, command_bucket_id); | |
6572 | ||
417e7e66 | 6573 | ovs_list_splice(after->list_node.next, new_ofgroup->buckets.next, |
fce4730c SH |
6574 | last->list_node.next); |
6575 | } | |
6576 | ||
6577 | return 0; | |
6578 | } | |
6579 | ||
6580 | /* Appends all of the a copy of all the buckets from 'ofgroup' to 'new_ofgroup' | |
6581 | * with the exception of the bucket whose bucket id is 'command_bucket_id'. | |
6582 | * Special 'command_bucket_id' values OFPG15_BUCKET_FIRST, OFPG15_BUCKET_LAST | |
6583 | * and OFPG15_BUCKET_ALL are also honored. */ | |
6584 | static enum ofperr | |
6585 | copy_buckets_for_remove_bucket(const struct ofgroup *ofgroup, | |
6586 | struct ofgroup *new_ofgroup, | |
6587 | uint32_t command_bucket_id) | |
6588 | { | |
6589 | const struct ofputil_bucket *skip = NULL; | |
6590 | ||
6591 | if (command_bucket_id == OFPG15_BUCKET_ALL) { | |
6592 | return 0; | |
6593 | } | |
6594 | ||
6595 | if (command_bucket_id == OFPG15_BUCKET_FIRST) { | |
417e7e66 | 6596 | if (!ovs_list_is_empty(&ofgroup->buckets)) { |
fce4730c SH |
6597 | skip = ofputil_bucket_list_front(&ofgroup->buckets); |
6598 | } | |
6599 | } else if (command_bucket_id == OFPG15_BUCKET_LAST) { | |
417e7e66 | 6600 | if (!ovs_list_is_empty(&ofgroup->buckets)) { |
fce4730c SH |
6601 | skip = ofputil_bucket_list_back(&ofgroup->buckets); |
6602 | } | |
6603 | } else { | |
6604 | skip = ofputil_bucket_find(&ofgroup->buckets, command_bucket_id); | |
6605 | if (!skip) { | |
6606 | return OFPERR_OFPGMFC_UNKNOWN_BUCKET; | |
6607 | } | |
6608 | } | |
6609 | ||
db88b35c JR |
6610 | ofputil_bucket_clone_list(CONST_CAST(struct ovs_list *, |
6611 | &new_ofgroup->buckets), | |
6612 | &ofgroup->buckets, skip); | |
fce4730c SH |
6613 | |
6614 | return 0; | |
6615 | } | |
6616 | ||
6617 | /* Implements OFPGC11_MODIFY, OFPGC15_INSERT_BUCKET and | |
6618 | * OFPGC15_REMOVE_BUCKET. Returns 0 on success or an OpenFlow error code | |
6c5b90ce | 6619 | * on failure. |
7395c052 | 6620 | * |
809c7548 RW |
6621 | * Note that the group is re-created and then replaces the old group in |
6622 | * ofproto's ofgroup hash map. Thus, the group is never altered while users of | |
6c5b90ce | 6623 | * the xlate module hold a pointer to the group. */ |
7395c052 | 6624 | static enum ofperr |
2b0b0b80 | 6625 | modify_group_start(struct ofproto *ofproto, struct ofproto_group_mod *ogm) |
cc099268 | 6626 | OVS_REQUIRES(ofproto_mutex) |
7395c052 | 6627 | { |
2b0b0b80 JR |
6628 | struct ofgroup *old_group; /* Modified group. */ |
6629 | struct ofgroup *new_group; | |
7395c052 NZ |
6630 | enum ofperr error; |
6631 | ||
5d08a275 JR |
6632 | old_group = ofproto_group_lookup__(ofproto, ogm->gm.group_id, |
6633 | OVS_VERSION_MAX); | |
2b0b0b80 JR |
6634 | if (!old_group) { |
6635 | return OFPERR_OFPGMFC_UNKNOWN_GROUP; | |
7395c052 NZ |
6636 | } |
6637 | ||
2b0b0b80 JR |
6638 | if (old_group->type != ogm->gm.type |
6639 | && (ofproto->n_groups[ogm->gm.type] | |
6640 | >= ofproto->ogf.max_groups[ogm->gm.type])) { | |
6641 | return OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
7395c052 | 6642 | } |
809c7548 | 6643 | |
5d08a275 | 6644 | error = init_group(ofproto, &ogm->gm, ogm->version, &ogm->new_group); |
2b0b0b80 JR |
6645 | if (error) { |
6646 | return error; | |
7395c052 | 6647 | } |
2b0b0b80 | 6648 | new_group = ogm->new_group; |
7395c052 | 6649 | |
fce4730c | 6650 | /* Manipulate bucket list for bucket commands */ |
2b0b0b80 JR |
6651 | if (ogm->gm.command == OFPGC15_INSERT_BUCKET) { |
6652 | error = copy_buckets_for_insert_bucket(old_group, new_group, | |
6653 | ogm->gm.command_bucket_id); | |
6654 | } else if (ogm->gm.command == OFPGC15_REMOVE_BUCKET) { | |
6655 | error = copy_buckets_for_remove_bucket(old_group, new_group, | |
6656 | ogm->gm.command_bucket_id); | |
fce4730c SH |
6657 | } |
6658 | if (error) { | |
6659 | goto out; | |
6660 | } | |
6661 | ||
809c7548 | 6662 | /* The group creation time does not change during modification. */ |
2b0b0b80 JR |
6663 | *CONST_CAST(long long int *, &(new_group->created)) = old_group->created; |
6664 | *CONST_CAST(long long int *, &(new_group->modified)) = time_msec(); | |
7395c052 | 6665 | |
2b0b0b80 | 6666 | group_collection_add(&ogm->old_groups, old_group); |
db88b35c | 6667 | |
5d08a275 JR |
6668 | /* Mark the old group for deletion. */ |
6669 | versions_set_remove_version(&old_group->versions, ogm->version); | |
6670 | /* Insert replacement group. */ | |
6671 | cmap_insert(&ofproto->groups, &new_group->cmap_node, | |
6672 | hash_int(new_group->group_id, 0)); | |
cc099268 | 6673 | /* Transfer rules. */ |
2b0b0b80 | 6674 | rule_collection_move(&new_group->rules, &old_group->rules); |
db88b35c | 6675 | |
2b0b0b80 JR |
6676 | if (old_group->type != new_group->type) { |
6677 | ofproto->n_groups[old_group->type]--; | |
6678 | ofproto->n_groups[new_group->type]++; | |
7395c052 | 6679 | } |
2b0b0b80 | 6680 | return 0; |
7395c052 | 6681 | |
809c7548 | 6682 | out: |
2b0b0b80 | 6683 | ofproto_group_unref(new_group); |
7395c052 NZ |
6684 | return error; |
6685 | } | |
6686 | ||
88b87a36 JS |
6687 | /* Implements the OFPGC11_ADD_OR_MOD command which creates the group when it does not |
6688 | * exist yet and modifies it otherwise */ | |
6689 | static enum ofperr | |
2b0b0b80 JR |
6690 | add_or_modify_group_start(struct ofproto *ofproto, |
6691 | struct ofproto_group_mod *ogm) | |
cc099268 | 6692 | OVS_REQUIRES(ofproto_mutex) |
88b87a36 | 6693 | { |
88b87a36 | 6694 | enum ofperr error; |
88b87a36 | 6695 | |
2b0b0b80 JR |
6696 | if (!ofproto_group_exists(ofproto, ogm->gm.group_id)) { |
6697 | error = add_group_start(ofproto, ogm); | |
88b87a36 | 6698 | } else { |
2b0b0b80 | 6699 | error = modify_group_start(ofproto, ogm); |
88b87a36 | 6700 | } |
cc099268 | 6701 | |
88b87a36 JS |
6702 | return error; |
6703 | } | |
6704 | ||
7395c052 | 6705 | static void |
5d08a275 JR |
6706 | delete_group_start(struct ofproto *ofproto, ovs_version_t version, |
6707 | struct group_collection *groups, struct ofgroup *group) | |
cc099268 | 6708 | OVS_REQUIRES(ofproto_mutex) |
7395c052 | 6709 | { |
2b0b0b80 | 6710 | /* Makes flow deletion code leave the rule pointers in 'group->rules' |
cc099268 JR |
6711 | * intact, so that we can later refer to the rules deleted due to the group |
6712 | * deletion. Rule pointers will be removed from all other groups, if any, | |
6713 | * so we will never try to delete the same rule twice. */ | |
2b0b0b80 JR |
6714 | group->being_deleted = true; |
6715 | ||
6716 | /* Mark all the referring groups for deletion. */ | |
5d08a275 | 6717 | delete_flows_start__(ofproto, version, &group->rules); |
2b0b0b80 | 6718 | group_collection_add(groups, group); |
5d08a275 | 6719 | versions_set_remove_version(&group->versions, version); |
2b0b0b80 JR |
6720 | ofproto->n_groups[group->type]--; |
6721 | } | |
276f6518 | 6722 | |
2b0b0b80 JR |
6723 | static void |
6724 | delete_group_finish(struct ofproto *ofproto, struct ofgroup *group) | |
6725 | OVS_REQUIRES(ofproto_mutex) | |
6726 | { | |
6727 | /* Finish deletion of all flow entries containing this group in a group | |
6728 | * action. */ | |
6729 | delete_flows_finish__(ofproto, &group->rules, OFPRR_GROUP_DELETE, NULL); | |
276f6518 | 6730 | |
5d08a275 | 6731 | /* Group removal is postponed by the caller. */ |
7395c052 NZ |
6732 | } |
6733 | ||
6c5b90ce | 6734 | /* Implements OFPGC11_DELETE. */ |
7395c052 | 6735 | static void |
2b0b0b80 | 6736 | delete_groups_start(struct ofproto *ofproto, struct ofproto_group_mod *ogm) |
cc099268 | 6737 | OVS_REQUIRES(ofproto_mutex) |
7395c052 | 6738 | { |
2b0b0b80 | 6739 | struct ofgroup *group; |
7395c052 | 6740 | |
2b0b0b80 JR |
6741 | if (ogm->gm.group_id == OFPG_ALL) { |
6742 | CMAP_FOR_EACH (group, cmap_node, &ofproto->groups) { | |
5d08a275 JR |
6743 | if (versions_visible_in_version(&group->versions, ogm->version)) { |
6744 | delete_group_start(ofproto, ogm->version, &ogm->old_groups, | |
6745 | group); | |
6746 | } | |
7395c052 NZ |
6747 | } |
6748 | } else { | |
5d08a275 JR |
6749 | group = ofproto_group_lookup__(ofproto, ogm->gm.group_id, ogm->version); |
6750 | if (group) { | |
6751 | delete_group_start(ofproto, ogm->version, &ogm->old_groups, group); | |
7395c052 NZ |
6752 | } |
6753 | } | |
7395c052 NZ |
6754 | } |
6755 | ||
6756 | static enum ofperr | |
2b0b0b80 JR |
6757 | ofproto_group_mod_start(struct ofproto *ofproto, struct ofproto_group_mod *ogm) |
6758 | OVS_REQUIRES(ofproto_mutex) | |
7395c052 | 6759 | { |
7395c052 NZ |
6760 | enum ofperr error; |
6761 | ||
2b0b0b80 JR |
6762 | ogm->new_group = NULL; |
6763 | group_collection_init(&ogm->old_groups); | |
7395c052 | 6764 | |
2b0b0b80 | 6765 | switch (ogm->gm.command) { |
7395c052 | 6766 | case OFPGC11_ADD: |
2b0b0b80 | 6767 | error = add_group_start(ofproto, ogm); |
3c35db62 | 6768 | break; |
7395c052 NZ |
6769 | |
6770 | case OFPGC11_MODIFY: | |
2b0b0b80 | 6771 | error = modify_group_start(ofproto, ogm); |
3c35db62 | 6772 | break; |
7395c052 | 6773 | |
88b87a36 | 6774 | case OFPGC11_ADD_OR_MOD: |
2b0b0b80 | 6775 | error = add_or_modify_group_start(ofproto, ogm); |
88b87a36 JS |
6776 | break; |
6777 | ||
7395c052 | 6778 | case OFPGC11_DELETE: |
2b0b0b80 | 6779 | delete_groups_start(ofproto, ogm); |
3c35db62 NR |
6780 | error = 0; |
6781 | break; | |
7395c052 | 6782 | |
fce4730c | 6783 | case OFPGC15_INSERT_BUCKET: |
2b0b0b80 | 6784 | error = modify_group_start(ofproto, ogm); |
3c35db62 | 6785 | break; |
fce4730c SH |
6786 | |
6787 | case OFPGC15_REMOVE_BUCKET: | |
2b0b0b80 | 6788 | error = modify_group_start(ofproto, ogm); |
3c35db62 | 6789 | break; |
fce4730c | 6790 | |
7395c052 | 6791 | default: |
2b0b0b80 | 6792 | if (ogm->gm.command > OFPGC11_DELETE) { |
d2873d53 | 6793 | VLOG_INFO_RL(&rl, "%s: Invalid group_mod command type %d", |
2b0b0b80 | 6794 | ofproto->name, ogm->gm.command); |
7395c052 | 6795 | } |
63eded98 | 6796 | error = OFPERR_OFPGMFC_BAD_COMMAND; |
2b0b0b80 | 6797 | break; |
7395c052 | 6798 | } |
2b0b0b80 JR |
6799 | return error; |
6800 | } | |
3c35db62 | 6801 | |
25070e04 JR |
6802 | static void |
6803 | ofproto_group_mod_revert(struct ofproto *ofproto, | |
6804 | struct ofproto_group_mod *ogm) | |
6805 | OVS_REQUIRES(ofproto_mutex) | |
6806 | { | |
6807 | struct ofgroup *new_group = ogm->new_group; | |
6808 | struct ofgroup *old_group; | |
6809 | ||
6810 | /* Restore replaced or deleted groups. */ | |
6811 | GROUP_COLLECTION_FOR_EACH (old_group, &ogm->old_groups) { | |
6812 | ofproto->n_groups[old_group->type]++; | |
6813 | if (new_group) { | |
6814 | ovs_assert(group_collection_n(&ogm->old_groups) == 1); | |
6815 | /* Transfer rules back. */ | |
6816 | rule_collection_move(&old_group->rules, &new_group->rules); | |
6817 | } else { | |
6818 | old_group->being_deleted = false; | |
6819 | /* Revert rule deletion. */ | |
6820 | delete_flows_revert__(ofproto, &old_group->rules); | |
6821 | } | |
6822 | /* Restore visibility. */ | |
6823 | versions_set_remove_version(&old_group->versions, | |
6824 | OVS_VERSION_NOT_REMOVED); | |
6825 | } | |
6826 | if (new_group) { | |
6827 | /* Remove the new group immediately. It was never visible to | |
6828 | * lookups. */ | |
6829 | cmap_remove(&ofproto->groups, &new_group->cmap_node, | |
6830 | hash_int(new_group->group_id, 0)); | |
6831 | ofproto->n_groups[new_group->type]--; | |
6832 | ofproto_group_unref(new_group); | |
6833 | } | |
6834 | } | |
6835 | ||
2b0b0b80 JR |
6836 | static void |
6837 | ofproto_group_mod_finish(struct ofproto *ofproto, | |
6838 | struct ofproto_group_mod *ogm, | |
6839 | const struct openflow_mod_requester *req) | |
6840 | OVS_REQUIRES(ofproto_mutex) | |
6841 | { | |
6842 | struct ofgroup *new_group = ogm->new_group; | |
6843 | struct ofgroup *old_group; | |
6844 | ||
5d08a275 | 6845 | if (new_group && group_collection_n(&ogm->old_groups)) { |
2b0b0b80 JR |
6846 | /* Modify a group. */ |
6847 | ovs_assert(group_collection_n(&ogm->old_groups) == 1); | |
2b0b0b80 JR |
6848 | |
6849 | /* XXX: OK to lose old group's stats? */ | |
6850 | ofproto->ofproto_class->group_modify(new_group); | |
5d08a275 | 6851 | } |
2b0b0b80 | 6852 | |
5d08a275 JR |
6853 | /* Delete old groups. */ |
6854 | GROUP_COLLECTION_FOR_EACH(old_group, &ogm->old_groups) { | |
6855 | delete_group_finish(ofproto, old_group); | |
2b0b0b80 | 6856 | } |
5d08a275 | 6857 | remove_groups_postponed(&ogm->old_groups); |
2b0b0b80 JR |
6858 | |
6859 | if (req) { | |
3c35db62 | 6860 | struct ofputil_requestforward rf; |
2b0b0b80 | 6861 | rf.xid = req->request->xid; |
3c35db62 | 6862 | rf.reason = OFPRFR_GROUP_MOD; |
2b0b0b80 JR |
6863 | rf.group_mod = &ogm->gm; |
6864 | connmgr_send_requestforward(ofproto->connmgr, req->ofconn, &rf); | |
6865 | } | |
6866 | } | |
6867 | ||
6868 | /* Delete all groups from 'ofproto'. | |
6869 | * | |
6870 | * This is intended for use within an ofproto provider's 'destruct' | |
6871 | * function. */ | |
6872 | void | |
6873 | ofproto_group_delete_all(struct ofproto *ofproto) | |
6874 | OVS_EXCLUDED(ofproto_mutex) | |
6875 | { | |
6876 | struct ofproto_group_mod ogm; | |
6877 | ||
6878 | ogm.gm.command = OFPGC11_DELETE; | |
6879 | ogm.gm.group_id = OFPG_ALL; | |
6880 | ||
6881 | ovs_mutex_lock(&ofproto_mutex); | |
5d08a275 | 6882 | ogm.version = ofproto->tables_version + 1; |
2b0b0b80 | 6883 | ofproto_group_mod_start(ofproto, &ogm); |
5d08a275 | 6884 | ofproto_bump_tables_version(ofproto); |
2b0b0b80 JR |
6885 | ofproto_group_mod_finish(ofproto, &ogm, NULL); |
6886 | ovs_mutex_unlock(&ofproto_mutex); | |
6887 | } | |
6888 | ||
6889 | static enum ofperr | |
6890 | handle_group_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
6891 | OVS_EXCLUDED(ofproto_mutex) | |
6892 | { | |
6893 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
6894 | struct ofproto_group_mod ogm; | |
6895 | enum ofperr error; | |
6896 | ||
6897 | error = reject_slave_controller(ofconn); | |
6898 | if (error) { | |
6899 | return error; | |
6900 | } | |
6901 | ||
6902 | error = ofputil_decode_group_mod(oh, &ogm.gm); | |
6903 | if (error) { | |
6904 | return error; | |
3c35db62 | 6905 | } |
2b0b0b80 JR |
6906 | |
6907 | ovs_mutex_lock(&ofproto_mutex); | |
5d08a275 | 6908 | ogm.version = ofproto->tables_version + 1; |
2b0b0b80 JR |
6909 | error = ofproto_group_mod_start(ofproto, &ogm); |
6910 | if (!error) { | |
6911 | struct openflow_mod_requester req = { ofconn, oh }; | |
5d08a275 JR |
6912 | |
6913 | ofproto_bump_tables_version(ofproto); | |
2b0b0b80 JR |
6914 | ofproto_group_mod_finish(ofproto, &ogm, &req); |
6915 | } | |
6916 | ofmonitor_flush(ofproto->connmgr); | |
6917 | ovs_mutex_unlock(&ofproto_mutex); | |
6918 | ||
75868d0e | 6919 | ofputil_uninit_group_mod(&ogm.gm); |
63eded98 | 6920 | |
3c35db62 | 6921 | return error; |
7395c052 NZ |
6922 | } |
6923 | ||
3c1bb396 BP |
6924 | enum ofputil_table_miss |
6925 | ofproto_table_get_miss_config(const struct ofproto *ofproto, uint8_t table_id) | |
6d328fa2 | 6926 | { |
82c22d34 BP |
6927 | enum ofputil_table_miss miss; |
6928 | ||
6929 | atomic_read_relaxed(&ofproto->tables[table_id].miss_config, &miss); | |
6930 | return miss; | |
6931 | } | |
6932 | ||
6933 | static void | |
6934 | table_mod__(struct oftable *oftable, | |
de7d3c07 | 6935 | const struct ofputil_table_mod *tm) |
82c22d34 | 6936 | { |
de7d3c07 | 6937 | if (tm->miss == OFPUTIL_TABLE_MISS_DEFAULT) { |
82c22d34 BP |
6938 | /* This is how an OFPT_TABLE_MOD decodes if it doesn't specify any |
6939 | * table-miss configuration (because the protocol used doesn't have | |
6940 | * such a concept), so there's nothing to do. */ | |
6941 | } else { | |
de7d3c07 | 6942 | atomic_store_relaxed(&oftable->miss_config, tm->miss); |
82c22d34 BP |
6943 | } |
6944 | ||
6945 | unsigned int new_eviction = oftable->eviction; | |
de7d3c07 | 6946 | if (tm->eviction == OFPUTIL_TABLE_EVICTION_ON) { |
82c22d34 | 6947 | new_eviction |= EVICTION_OPENFLOW; |
de7d3c07 | 6948 | } else if (tm->eviction == OFPUTIL_TABLE_EVICTION_OFF) { |
82c22d34 BP |
6949 | new_eviction &= ~EVICTION_OPENFLOW; |
6950 | } | |
afcea9ea | 6951 | |
82c22d34 BP |
6952 | if (new_eviction != oftable->eviction) { |
6953 | ovs_mutex_lock(&ofproto_mutex); | |
6954 | oftable_configure_eviction(oftable, new_eviction, | |
6955 | oftable->eviction_fields, | |
6956 | oftable->n_eviction_fields); | |
6957 | ovs_mutex_unlock(&ofproto_mutex); | |
6958 | } | |
de7d3c07 SJ |
6959 | |
6960 | if (tm->vacancy != OFPUTIL_TABLE_VACANCY_DEFAULT) { | |
6961 | ovs_mutex_lock(&ofproto_mutex); | |
de7d3c07 SJ |
6962 | oftable->vacancy_down = tm->table_vacancy.vacancy_down; |
6963 | oftable->vacancy_up = tm->table_vacancy.vacancy_up; | |
6c6eedc5 SJ |
6964 | if (tm->vacancy == OFPUTIL_TABLE_VACANCY_OFF) { |
6965 | oftable->vacancy_event = 0; | |
6966 | } else if (!oftable->vacancy_event) { | |
6967 | uint8_t vacancy = oftable_vacancy(oftable); | |
6968 | oftable->vacancy_event = (vacancy < oftable->vacancy_up | |
6969 | ? OFPTR_VACANCY_UP | |
6970 | : OFPTR_VACANCY_DOWN); | |
6971 | } | |
de7d3c07 SJ |
6972 | ovs_mutex_unlock(&ofproto_mutex); |
6973 | } | |
6d328fa2 SH |
6974 | } |
6975 | ||
67761761 SH |
6976 | static enum ofperr |
6977 | table_mod(struct ofproto *ofproto, const struct ofputil_table_mod *tm) | |
6978 | { | |
3c1bb396 | 6979 | if (!check_table_id(ofproto, tm->table_id)) { |
67761761 | 6980 | return OFPERR_OFPTMFC_BAD_TABLE; |
82c22d34 BP |
6981 | } |
6982 | ||
6983 | /* Don't allow the eviction flags to be changed (except to the only fixed | |
6984 | * value that OVS supports). OF1.4 says this is normal: "The | |
6985 | * OFPTMPT_EVICTION property usually cannot be modified using a | |
6986 | * OFP_TABLE_MOD request, because the eviction mechanism is switch | |
6987 | * defined". */ | |
6988 | if (tm->eviction_flags != UINT32_MAX | |
6989 | && tm->eviction_flags != OFPROTO_EVICTION_FLAGS) { | |
6990 | return OFPERR_OFPTMFC_BAD_CONFIG; | |
6991 | } | |
6992 | ||
6993 | if (tm->table_id == OFPTT_ALL) { | |
6994 | struct oftable *oftable; | |
6995 | OFPROTO_FOR_EACH_TABLE (oftable, ofproto) { | |
6996 | if (!(oftable->flags & (OFTABLE_HIDDEN | OFTABLE_READONLY))) { | |
de7d3c07 | 6997 | table_mod__(oftable, tm); |
3c1bb396 | 6998 | } |
3c1bb396 | 6999 | } |
82c22d34 BP |
7000 | } else { |
7001 | struct oftable *oftable = &ofproto->tables[tm->table_id]; | |
7002 | if (oftable->flags & OFTABLE_READONLY) { | |
7003 | return OFPERR_OFPTMFC_EPERM; | |
7004 | } | |
de7d3c07 | 7005 | table_mod__(oftable, tm); |
67761761 | 7006 | } |
82c22d34 | 7007 | |
67761761 SH |
7008 | return 0; |
7009 | } | |
7010 | ||
918f2b82 AZ |
7011 | static enum ofperr |
7012 | handle_table_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
7013 | { | |
67761761 | 7014 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
918f2b82 AZ |
7015 | struct ofputil_table_mod tm; |
7016 | enum ofperr error; | |
7017 | ||
7018 | error = reject_slave_controller(ofconn); | |
7019 | if (error) { | |
7020 | return error; | |
7021 | } | |
7022 | ||
7023 | error = ofputil_decode_table_mod(oh, &tm); | |
7024 | if (error) { | |
7025 | return error; | |
7026 | } | |
7027 | ||
67761761 | 7028 | return table_mod(ofproto, &tm); |
918f2b82 AZ |
7029 | } |
7030 | ||
5bacd5cd JR |
7031 | /* Free resources that may be allocated by ofproto_flow_mod_init(). */ |
7032 | void | |
7033 | ofproto_flow_mod_uninit(struct ofproto_flow_mod *ofm) | |
7034 | { | |
7035 | if (ofm->temp_rule) { | |
7036 | ofproto_rule_unref(ofm->temp_rule); | |
7037 | ofm->temp_rule = NULL; | |
7038 | } | |
7039 | if (ofm->criteria.version != OVS_VERSION_NOT_REMOVED) { | |
7040 | rule_criteria_destroy(&ofm->criteria); | |
7041 | } | |
7042 | if (ofm->conjs) { | |
7043 | free(ofm->conjs); | |
7044 | ofm->conjs = NULL; | |
7045 | ofm->n_conjs = 0; | |
7046 | } | |
7047 | } | |
7048 | ||
777af88d | 7049 | static enum ofperr |
5bacd5cd JR |
7050 | ofproto_flow_mod_init(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
7051 | const struct ofputil_flow_mod *fm) | |
7052 | OVS_EXCLUDED(ofproto_mutex) | |
777af88d | 7053 | { |
5bacd5cd JR |
7054 | enum ofperr error; |
7055 | ||
7056 | /* Forward flow mod fields we need later. */ | |
7057 | ofm->command = fm->command; | |
5bacd5cd JR |
7058 | ofm->modify_cookie = fm->modify_cookie; |
7059 | ||
7060 | ofm->modify_may_add_flow = (fm->new_cookie != OVS_BE64_MAX | |
7061 | && fm->cookie_mask == htonll(0)); | |
7062 | ||
7063 | /* Initialize state needed by ofproto_flow_mod_uninit(). */ | |
7064 | ofm->temp_rule = NULL; | |
7065 | ofm->criteria.version = OVS_VERSION_NOT_REMOVED; | |
7066 | ofm->conjs = NULL; | |
7067 | ofm->n_conjs = 0; | |
7068 | ||
c184807c JR |
7069 | bool check_buffer_id = false; |
7070 | ||
5bacd5cd JR |
7071 | switch (ofm->command) { |
7072 | case OFPFC_ADD: | |
c184807c | 7073 | check_buffer_id = true; |
5bacd5cd JR |
7074 | error = add_flow_init(ofproto, ofm, fm); |
7075 | break; | |
7076 | case OFPFC_MODIFY: | |
c184807c | 7077 | check_buffer_id = true; |
5bacd5cd JR |
7078 | error = modify_flows_init_loose(ofproto, ofm, fm); |
7079 | break; | |
7080 | case OFPFC_MODIFY_STRICT: | |
c184807c | 7081 | check_buffer_id = true; |
5bacd5cd JR |
7082 | error = modify_flow_init_strict(ofproto, ofm, fm); |
7083 | break; | |
7084 | case OFPFC_DELETE: | |
7085 | error = delete_flows_init_loose(ofproto, ofm, fm); | |
7086 | break; | |
7087 | case OFPFC_DELETE_STRICT: | |
7088 | error = delete_flows_init_strict(ofproto, ofm, fm); | |
7089 | break; | |
7090 | default: | |
7091 | error = OFPERR_OFPFMFC_BAD_COMMAND; | |
7092 | break; | |
7093 | } | |
c184807c JR |
7094 | if (!error && check_buffer_id && fm->buffer_id != UINT32_MAX) { |
7095 | error = OFPERR_OFPBRC_BUFFER_UNKNOWN; | |
7096 | } | |
7097 | ||
cc099268 | 7098 | if (error) { |
5bacd5cd | 7099 | ofproto_flow_mod_uninit(ofm); |
cc099268 | 7100 | } |
5bacd5cd JR |
7101 | return error; |
7102 | } | |
cc099268 | 7103 | |
5bacd5cd JR |
7104 | static enum ofperr |
7105 | ofproto_flow_mod_start(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) | |
7106 | OVS_REQUIRES(ofproto_mutex) | |
7107 | { | |
7108 | enum ofperr error; | |
81dee635 | 7109 | |
5bacd5cd JR |
7110 | rule_collection_init(&ofm->old_rules); |
7111 | rule_collection_init(&ofm->new_rules); | |
81dee635 | 7112 | |
5a27991d | 7113 | switch (ofm->command) { |
1f42be1c | 7114 | case OFPFC_ADD: |
5bacd5cd JR |
7115 | error = add_flow_start(ofproto, ofm); |
7116 | break; | |
1f42be1c | 7117 | case OFPFC_MODIFY: |
5bacd5cd JR |
7118 | error = modify_flows_start_loose(ofproto, ofm); |
7119 | break; | |
1f42be1c | 7120 | case OFPFC_MODIFY_STRICT: |
5bacd5cd JR |
7121 | error = modify_flow_start_strict(ofproto, ofm); |
7122 | break; | |
1f42be1c | 7123 | case OFPFC_DELETE: |
5bacd5cd JR |
7124 | error = delete_flows_start_loose(ofproto, ofm); |
7125 | break; | |
1f42be1c | 7126 | case OFPFC_DELETE_STRICT: |
5bacd5cd JR |
7127 | error = delete_flow_start_strict(ofproto, ofm); |
7128 | break; | |
7129 | default: | |
7130 | OVS_NOT_REACHED(); | |
1f42be1c | 7131 | } |
5bacd5cd JR |
7132 | /* Release resources not needed after start. */ |
7133 | ofproto_flow_mod_uninit(ofm); | |
1f42be1c | 7134 | |
5bacd5cd JR |
7135 | if (error) { |
7136 | rule_collection_destroy(&ofm->old_rules); | |
7137 | rule_collection_destroy(&ofm->new_rules); | |
7138 | } | |
7139 | return error; | |
1f42be1c JR |
7140 | } |
7141 | ||
7142 | static void | |
8be00367 | 7143 | ofproto_flow_mod_revert(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
1f42be1c JR |
7144 | OVS_REQUIRES(ofproto_mutex) |
7145 | { | |
5a27991d | 7146 | switch (ofm->command) { |
1f42be1c | 7147 | case OFPFC_ADD: |
8be00367 | 7148 | add_flow_revert(ofproto, ofm); |
1f42be1c JR |
7149 | break; |
7150 | ||
7151 | case OFPFC_MODIFY: | |
7152 | case OFPFC_MODIFY_STRICT: | |
8be00367 | 7153 | modify_flows_revert(ofproto, ofm); |
1f42be1c JR |
7154 | break; |
7155 | ||
7156 | case OFPFC_DELETE: | |
7157 | case OFPFC_DELETE_STRICT: | |
8be00367 | 7158 | delete_flows_revert(ofproto, ofm); |
1f42be1c JR |
7159 | break; |
7160 | ||
7161 | default: | |
7162 | break; | |
7163 | } | |
5bacd5cd JR |
7164 | rule_collection_destroy(&ofm->old_rules); |
7165 | rule_collection_destroy(&ofm->new_rules); | |
1f42be1c JR |
7166 | } |
7167 | ||
7168 | static void | |
8be00367 JR |
7169 | ofproto_flow_mod_finish(struct ofproto *ofproto, |
7170 | struct ofproto_flow_mod *ofm, | |
0a0d9385 | 7171 | const struct openflow_mod_requester *req) |
1f42be1c JR |
7172 | OVS_REQUIRES(ofproto_mutex) |
7173 | { | |
5a27991d | 7174 | switch (ofm->command) { |
1f42be1c | 7175 | case OFPFC_ADD: |
8be00367 | 7176 | add_flow_finish(ofproto, ofm, req); |
1f42be1c JR |
7177 | break; |
7178 | ||
7179 | case OFPFC_MODIFY: | |
7180 | case OFPFC_MODIFY_STRICT: | |
8be00367 | 7181 | modify_flows_finish(ofproto, ofm, req); |
1f42be1c JR |
7182 | break; |
7183 | ||
7184 | case OFPFC_DELETE: | |
7185 | case OFPFC_DELETE_STRICT: | |
8be00367 | 7186 | delete_flows_finish(ofproto, ofm, req); |
1f42be1c JR |
7187 | break; |
7188 | ||
7189 | default: | |
7190 | break; | |
7191 | } | |
b0d38b2f | 7192 | |
5bacd5cd JR |
7193 | rule_collection_destroy(&ofm->old_rules); |
7194 | rule_collection_destroy(&ofm->new_rules); | |
7195 | ||
b0d38b2f | 7196 | if (req) { |
5a27991d | 7197 | ofconn_report_flow_mod(req->ofconn, ofm->command); |
b0d38b2f | 7198 | } |
1f42be1c JR |
7199 | } |
7200 | ||
39c94593 JR |
7201 | /* Commit phases (all while locking ofproto_mutex): |
7202 | * | |
7203 | * 1. Begin: Gather resources and make changes visible in the next version. | |
7204 | * - Mark affected rules for removal in the next version. | |
7205 | * - Create new replacement rules, make visible in the next | |
7206 | * version. | |
7207 | * - Do not send any events or notifications. | |
7208 | * | |
7209 | * 2. Revert: Fail if any errors are found. After this point no errors are | |
7210 | * possible. No visible changes were made, so rollback is minimal (remove | |
7211 | * added invisible rules, restore visibility of rules marked for removal). | |
7212 | * | |
1c38055d JR |
7213 | * 3. Finish: Make the changes visible for lookups. Insert replacement rules to |
7214 | * the ofproto provider. Remove replaced and deleted rules from ofproto data | |
7215 | * structures, and Schedule postponed removal of deleted rules from the | |
7216 | * classifier. Send notifications, buffered packets, etc. | |
39c94593 | 7217 | */ |
1f42be1c JR |
7218 | static enum ofperr |
7219 | do_bundle_commit(struct ofconn *ofconn, uint32_t id, uint16_t flags) | |
7220 | { | |
7221 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
44e0c35d | 7222 | ovs_version_t version = ofproto->tables_version + 1; |
1f42be1c JR |
7223 | struct ofp_bundle *bundle; |
7224 | struct ofp_bundle_entry *be; | |
777af88d | 7225 | enum ofperr error; |
1f42be1c JR |
7226 | |
7227 | bundle = ofconn_get_bundle(ofconn, id); | |
7228 | ||
7229 | if (!bundle) { | |
7230 | return OFPERR_OFPBFC_BAD_ID; | |
7231 | } | |
7232 | if (bundle->flags != flags) { | |
7233 | error = OFPERR_OFPBFC_BAD_FLAGS; | |
7234 | } else { | |
1c38055d JR |
7235 | bool prev_is_port_mod = false; |
7236 | ||
1f42be1c JR |
7237 | error = 0; |
7238 | ovs_mutex_lock(&ofproto_mutex); | |
39c94593 JR |
7239 | |
7240 | /* 1. Begin. */ | |
1f42be1c JR |
7241 | LIST_FOR_EACH (be, node, &bundle->msg_list) { |
7242 | if (be->type == OFPTYPE_PORT_MOD) { | |
1c38055d JR |
7243 | /* Our port mods are not atomic. */ |
7244 | if (flags & OFPBF_ATOMIC) { | |
7245 | error = OFPERR_OFPBFC_MSG_FAILED; | |
7246 | } else { | |
7247 | prev_is_port_mod = true; | |
8be00367 | 7248 | error = port_mod_start(ofconn, &be->opm.pm, &be->opm.port); |
1c38055d | 7249 | } |
25070e04 JR |
7250 | } else { |
7251 | /* Flow & group mods between port mods are applied as a single | |
7252 | * version, but the versions are published only after we know | |
7253 | * the commit is successful. */ | |
1c38055d | 7254 | if (prev_is_port_mod) { |
25070e04 | 7255 | prev_is_port_mod = false; |
8be00367 | 7256 | ++version; |
1c38055d | 7257 | } |
25070e04 JR |
7258 | if (be->type == OFPTYPE_FLOW_MOD) { |
7259 | /* Store the version in which the changes should take | |
7260 | * effect. */ | |
7261 | be->ofm.version = version; | |
7262 | error = ofproto_flow_mod_start(ofproto, &be->ofm); | |
7263 | } else if (be->type == OFPTYPE_GROUP_MOD) { | |
7264 | /* Store the version in which the changes should take | |
7265 | * effect. */ | |
7266 | be->ogm.version = version; | |
7267 | error = ofproto_group_mod_start(ofproto, &be->ogm); | |
7268 | } else { | |
7269 | OVS_NOT_REACHED(); | |
7270 | } | |
1f42be1c JR |
7271 | } |
7272 | if (error) { | |
7273 | break; | |
7274 | } | |
7275 | } | |
1c38055d | 7276 | |
1f42be1c JR |
7277 | if (error) { |
7278 | /* Send error referring to the original message. */ | |
7279 | if (error) { | |
51bb26fa | 7280 | ofconn_send_error(ofconn, &be->ofp_msg, error); |
1f42be1c JR |
7281 | error = OFPERR_OFPBFC_MSG_FAILED; |
7282 | } | |
7283 | ||
39c94593 | 7284 | /* 2. Revert. Undo all the changes made above. */ |
1f42be1c JR |
7285 | LIST_FOR_EACH_REVERSE_CONTINUE(be, node, &bundle->msg_list) { |
7286 | if (be->type == OFPTYPE_FLOW_MOD) { | |
8be00367 | 7287 | ofproto_flow_mod_revert(ofproto, &be->ofm); |
25070e04 JR |
7288 | } else if (be->type == OFPTYPE_GROUP_MOD) { |
7289 | ofproto_group_mod_revert(ofproto, &be->ogm); | |
1f42be1c | 7290 | } |
25070e04 | 7291 | |
1c38055d | 7292 | /* Nothing needs to be reverted for a port mod. */ |
1f42be1c JR |
7293 | } |
7294 | } else { | |
39c94593 | 7295 | /* 4. Finish. */ |
1f42be1c | 7296 | LIST_FOR_EACH (be, node, &bundle->msg_list) { |
25070e04 | 7297 | if (be->type == OFPTYPE_PORT_MOD) { |
1c38055d JR |
7298 | /* Perform the actual port mod. This is not atomic, i.e., |
7299 | * the effects will be immediately seen by upcall | |
7300 | * processing regardless of the lookup version. It should | |
7301 | * be noted that port configuration changes can originate | |
7302 | * also from OVSDB changes asynchronously to all upcall | |
7303 | * processing. */ | |
8be00367 | 7304 | port_mod_finish(ofconn, &be->opm.pm, be->opm.port); |
25070e04 JR |
7305 | } else { |
7306 | struct openflow_mod_requester req = { ofconn, | |
51bb26fa | 7307 | &be->ofp_msg }; |
25070e04 JR |
7308 | if (be->type == OFPTYPE_FLOW_MOD) { |
7309 | /* Bump the lookup version to the one of the current | |
7310 | * message. This makes all the changes in the bundle | |
7311 | * at this version visible to lookups at once. */ | |
7312 | if (ofproto->tables_version < be->ofm.version) { | |
7313 | ofproto->tables_version = be->ofm.version; | |
7314 | ofproto->ofproto_class->set_tables_version( | |
7315 | ofproto, ofproto->tables_version); | |
7316 | } | |
7317 | ||
7318 | ofproto_flow_mod_finish(ofproto, &be->ofm, &req); | |
7319 | } else if (be->type == OFPTYPE_GROUP_MOD) { | |
7320 | /* Bump the lookup version to the one of the current | |
7321 | * message. This makes all the changes in the bundle | |
7322 | * at this version visible to lookups at once. */ | |
7323 | if (ofproto->tables_version < be->ogm.version) { | |
7324 | ofproto->tables_version = be->ogm.version; | |
7325 | ofproto->ofproto_class->set_tables_version( | |
7326 | ofproto, ofproto->tables_version); | |
7327 | } | |
7328 | ||
7329 | ofproto_group_mod_finish(ofproto, &be->ogm, &req); | |
7330 | } | |
1f42be1c JR |
7331 | } |
7332 | } | |
7333 | } | |
1c38055d | 7334 | |
1f42be1c JR |
7335 | ofmonitor_flush(ofproto->connmgr); |
7336 | ovs_mutex_unlock(&ofproto_mutex); | |
1f42be1c JR |
7337 | } |
7338 | ||
7339 | /* The bundle is discarded regardless the outcome. */ | |
7340 | ofp_bundle_remove__(ofconn, bundle, !error); | |
7341 | return error; | |
7342 | } | |
7343 | ||
7344 | static enum ofperr | |
7345 | handle_bundle_control(struct ofconn *ofconn, const struct ofp_header *oh) | |
7346 | { | |
777af88d | 7347 | struct ofputil_bundle_ctrl_msg bctrl; |
777af88d | 7348 | struct ofputil_bundle_ctrl_msg reply; |
1f42be1c JR |
7349 | struct ofpbuf *buf; |
7350 | enum ofperr error; | |
777af88d | 7351 | |
ba9d374a JR |
7352 | error = reject_slave_controller(ofconn); |
7353 | if (error) { | |
7354 | return error; | |
7355 | } | |
7356 | ||
777af88d AC |
7357 | error = ofputil_decode_bundle_ctrl(oh, &bctrl); |
7358 | if (error) { | |
7359 | return error; | |
7360 | } | |
7361 | reply.flags = 0; | |
7362 | reply.bundle_id = bctrl.bundle_id; | |
7363 | ||
7364 | switch (bctrl.type) { | |
51bb26fa JR |
7365 | case OFPBCT_OPEN_REQUEST: |
7366 | error = ofp_bundle_open(ofconn, bctrl.bundle_id, bctrl.flags, oh); | |
777af88d AC |
7367 | reply.type = OFPBCT_OPEN_REPLY; |
7368 | break; | |
7369 | case OFPBCT_CLOSE_REQUEST: | |
7370 | error = ofp_bundle_close(ofconn, bctrl.bundle_id, bctrl.flags); | |
ea53e3a8 | 7371 | reply.type = OFPBCT_CLOSE_REPLY; |
777af88d AC |
7372 | break; |
7373 | case OFPBCT_COMMIT_REQUEST: | |
1f42be1c | 7374 | error = do_bundle_commit(ofconn, bctrl.bundle_id, bctrl.flags); |
777af88d AC |
7375 | reply.type = OFPBCT_COMMIT_REPLY; |
7376 | break; | |
7377 | case OFPBCT_DISCARD_REQUEST: | |
7378 | error = ofp_bundle_discard(ofconn, bctrl.bundle_id); | |
7379 | reply.type = OFPBCT_DISCARD_REPLY; | |
7380 | break; | |
7381 | ||
7382 | case OFPBCT_OPEN_REPLY: | |
7383 | case OFPBCT_CLOSE_REPLY: | |
7384 | case OFPBCT_COMMIT_REPLY: | |
7385 | case OFPBCT_DISCARD_REPLY: | |
7386 | return OFPERR_OFPBFC_BAD_TYPE; | |
7387 | break; | |
7388 | } | |
7389 | ||
7390 | if (!error) { | |
7391 | buf = ofputil_encode_bundle_ctrl_reply(oh, &reply); | |
7392 | ofconn_send_reply(ofconn, buf); | |
7393 | } | |
7394 | return error; | |
7395 | } | |
7396 | ||
777af88d AC |
7397 | static enum ofperr |
7398 | handle_bundle_add(struct ofconn *ofconn, const struct ofp_header *oh) | |
5bacd5cd | 7399 | OVS_EXCLUDED(ofproto_mutex) |
777af88d | 7400 | { |
7ac27a04 | 7401 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
777af88d AC |
7402 | enum ofperr error; |
7403 | struct ofputil_bundle_add_msg badd; | |
7ac27a04 JR |
7404 | struct ofp_bundle_entry *bmsg; |
7405 | enum ofptype type; | |
777af88d | 7406 | |
ba9d374a JR |
7407 | error = reject_slave_controller(ofconn); |
7408 | if (error) { | |
7409 | return error; | |
7410 | } | |
7411 | ||
7ac27a04 | 7412 | error = ofputil_decode_bundle_add(oh, &badd, &type); |
777af88d AC |
7413 | if (error) { |
7414 | return error; | |
7415 | } | |
7416 | ||
1f42be1c | 7417 | bmsg = ofp_bundle_entry_alloc(type, badd.msg); |
7ac27a04 JR |
7418 | |
7419 | if (type == OFPTYPE_PORT_MOD) { | |
8be00367 | 7420 | error = ofputil_decode_port_mod(badd.msg, &bmsg->opm.pm, false); |
7ac27a04 | 7421 | } else if (type == OFPTYPE_FLOW_MOD) { |
5bacd5cd | 7422 | struct ofputil_flow_mod fm; |
7ac27a04 JR |
7423 | struct ofpbuf ofpacts; |
7424 | uint64_t ofpacts_stub[1024 / 8]; | |
7425 | ||
7426 | ofpbuf_use_stub(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); | |
5bacd5cd | 7427 | error = ofputil_decode_flow_mod(&fm, badd.msg, |
7ac27a04 JR |
7428 | ofconn_get_protocol(ofconn), |
7429 | &ofpacts, | |
7430 | u16_to_ofp(ofproto->max_ports), | |
7431 | ofproto->n_tables); | |
5bacd5cd JR |
7432 | if (!error) { |
7433 | error = ofproto_flow_mod_init(ofproto, &bmsg->ofm, &fm); | |
7434 | } | |
7435 | ofpbuf_uninit(&ofpacts); | |
25070e04 JR |
7436 | } else if (type == OFPTYPE_GROUP_MOD) { |
7437 | error = ofputil_decode_group_mod(badd.msg, &bmsg->ogm.gm); | |
7ac27a04 JR |
7438 | } else { |
7439 | OVS_NOT_REACHED(); | |
7440 | } | |
7441 | ||
7442 | if (!error) { | |
7443 | error = ofp_bundle_add_message(ofconn, badd.bundle_id, badd.flags, | |
51bb26fa | 7444 | bmsg, oh); |
7ac27a04 JR |
7445 | } |
7446 | ||
7447 | if (error) { | |
7448 | ofp_bundle_entry_free(bmsg); | |
7449 | } | |
7450 | ||
7451 | return error; | |
777af88d AC |
7452 | } |
7453 | ||
6159c531 | 7454 | static enum ofperr |
4e548ad9 | 7455 | handle_tlv_table_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
6159c531 | 7456 | { |
4e548ad9 | 7457 | struct ofputil_tlv_table_mod ttm; |
6159c531 JG |
7458 | enum ofperr error; |
7459 | ||
7460 | error = reject_slave_controller(ofconn); | |
7461 | if (error) { | |
7462 | return error; | |
7463 | } | |
7464 | ||
4e548ad9 | 7465 | error = ofputil_decode_tlv_table_mod(oh, &ttm); |
6159c531 JG |
7466 | if (error) { |
7467 | return error; | |
7468 | } | |
7469 | ||
4e548ad9 | 7470 | error = tun_metadata_table_mod(&ttm); |
9558d2a5 | 7471 | |
4e548ad9 | 7472 | ofputil_uninit_tlv_table(&ttm.mappings); |
9558d2a5 | 7473 | return error; |
6159c531 JG |
7474 | } |
7475 | ||
7476 | static enum ofperr | |
4e548ad9 | 7477 | handle_tlv_table_request(struct ofconn *ofconn, const struct ofp_header *oh) |
6159c531 | 7478 | { |
4e548ad9 | 7479 | struct ofputil_tlv_table_reply ttr; |
9558d2a5 JG |
7480 | struct ofpbuf *b; |
7481 | ||
4e548ad9 ML |
7482 | tun_metadata_table_request(&ttr); |
7483 | b = ofputil_encode_tlv_table_reply(oh, &ttr); | |
7484 | ofputil_uninit_tlv_table(&ttr.mappings); | |
9558d2a5 JG |
7485 | |
7486 | ofconn_send_reply(ofconn, b); | |
7487 | return 0; | |
6159c531 JG |
7488 | } |
7489 | ||
90bf1e07 | 7490 | static enum ofperr |
d1e2cf21 | 7491 | handle_openflow__(struct ofconn *ofconn, const struct ofpbuf *msg) |
15aaf599 | 7492 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 7493 | { |
6fd6ed71 | 7494 | const struct ofp_header *oh = msg->data; |
982697a4 | 7495 | enum ofptype type; |
90bf1e07 | 7496 | enum ofperr error; |
064af421 | 7497 | |
982697a4 | 7498 | error = ofptype_decode(&type, oh); |
d1e2cf21 BP |
7499 | if (error) { |
7500 | return error; | |
7501 | } | |
ff3c2c63 YT |
7502 | if (oh->version >= OFP13_VERSION && ofpmsg_is_stat_request(oh) |
7503 | && ofpmp_more(oh)) { | |
7504 | /* We have no buffer implementation for multipart requests. | |
7505 | * Report overflow for requests which consists of multiple | |
7506 | * messages. */ | |
7507 | return OFPERR_OFPBRC_MULTIPART_BUFFER_OVERFLOW; | |
7508 | } | |
064af421 | 7509 | |
982697a4 | 7510 | switch (type) { |
d1e2cf21 | 7511 | /* OpenFlow requests. */ |
982697a4 | 7512 | case OFPTYPE_ECHO_REQUEST: |
d1e2cf21 | 7513 | return handle_echo_request(ofconn, oh); |
064af421 | 7514 | |
982697a4 | 7515 | case OFPTYPE_FEATURES_REQUEST: |
d1e2cf21 | 7516 | return handle_features_request(ofconn, oh); |
064af421 | 7517 | |
982697a4 | 7518 | case OFPTYPE_GET_CONFIG_REQUEST: |
d1e2cf21 | 7519 | return handle_get_config_request(ofconn, oh); |
064af421 | 7520 | |
982697a4 BP |
7521 | case OFPTYPE_SET_CONFIG: |
7522 | return handle_set_config(ofconn, oh); | |
064af421 | 7523 | |
982697a4 BP |
7524 | case OFPTYPE_PACKET_OUT: |
7525 | return handle_packet_out(ofconn, oh); | |
064af421 | 7526 | |
982697a4 | 7527 | case OFPTYPE_PORT_MOD: |
d1e2cf21 | 7528 | return handle_port_mod(ofconn, oh); |
064af421 | 7529 | |
982697a4 | 7530 | case OFPTYPE_FLOW_MOD: |
2e4f5fcf | 7531 | return handle_flow_mod(ofconn, oh); |
064af421 | 7532 | |
7395c052 NZ |
7533 | case OFPTYPE_GROUP_MOD: |
7534 | return handle_group_mod(ofconn, oh); | |
7535 | ||
918f2b82 AZ |
7536 | case OFPTYPE_TABLE_MOD: |
7537 | return handle_table_mod(ofconn, oh); | |
7538 | ||
9cae45dc JR |
7539 | case OFPTYPE_METER_MOD: |
7540 | return handle_meter_mod(ofconn, oh); | |
7541 | ||
982697a4 | 7542 | case OFPTYPE_BARRIER_REQUEST: |
d1e2cf21 | 7543 | return handle_barrier_request(ofconn, oh); |
064af421 | 7544 | |
6ea4776b JR |
7545 | case OFPTYPE_ROLE_REQUEST: |
7546 | return handle_role_request(ofconn, oh); | |
7547 | ||
d1e2cf21 | 7548 | /* OpenFlow replies. */ |
982697a4 | 7549 | case OFPTYPE_ECHO_REPLY: |
d1e2cf21 | 7550 | return 0; |
246e61ea | 7551 | |
d1e2cf21 | 7552 | /* Nicira extension requests. */ |
982697a4 | 7553 | case OFPTYPE_FLOW_MOD_TABLE_ID: |
6c1491fb | 7554 | return handle_nxt_flow_mod_table_id(ofconn, oh); |
d1e2cf21 | 7555 | |
982697a4 | 7556 | case OFPTYPE_SET_FLOW_FORMAT: |
d1e2cf21 BP |
7557 | return handle_nxt_set_flow_format(ofconn, oh); |
7558 | ||
982697a4 | 7559 | case OFPTYPE_SET_PACKET_IN_FORMAT: |
54834960 EJ |
7560 | return handle_nxt_set_packet_in_format(ofconn, oh); |
7561 | ||
982697a4 | 7562 | case OFPTYPE_SET_CONTROLLER_ID: |
a7349929 BP |
7563 | return handle_nxt_set_controller_id(ofconn, oh); |
7564 | ||
982697a4 | 7565 | case OFPTYPE_FLOW_AGE: |
f27f2134 BP |
7566 | /* Nothing to do. */ |
7567 | return 0; | |
7568 | ||
982697a4 | 7569 | case OFPTYPE_FLOW_MONITOR_CANCEL: |
2b07c8b1 BP |
7570 | return handle_flow_monitor_cancel(ofconn, oh); |
7571 | ||
982697a4 | 7572 | case OFPTYPE_SET_ASYNC_CONFIG: |
80d5aefd BP |
7573 | return handle_nxt_set_async_config(ofconn, oh); |
7574 | ||
c423b3b3 AC |
7575 | case OFPTYPE_GET_ASYNC_REQUEST: |
7576 | return handle_nxt_get_async_request(ofconn, oh); | |
7577 | ||
77ab5fd2 BP |
7578 | case OFPTYPE_NXT_RESUME: |
7579 | return handle_nxt_resume(ofconn, oh); | |
7580 | ||
349adfb2 | 7581 | /* Statistics requests. */ |
982697a4 BP |
7582 | case OFPTYPE_DESC_STATS_REQUEST: |
7583 | return handle_desc_stats_request(ofconn, oh); | |
7584 | ||
7585 | case OFPTYPE_FLOW_STATS_REQUEST: | |
7586 | return handle_flow_stats_request(ofconn, oh); | |
7587 | ||
7588 | case OFPTYPE_AGGREGATE_STATS_REQUEST: | |
7589 | return handle_aggregate_stats_request(ofconn, oh); | |
7590 | ||
7591 | case OFPTYPE_TABLE_STATS_REQUEST: | |
7592 | return handle_table_stats_request(ofconn, oh); | |
7593 | ||
3c4e10fb BP |
7594 | case OFPTYPE_TABLE_FEATURES_STATS_REQUEST: |
7595 | return handle_table_features_request(ofconn, oh); | |
7596 | ||
03c72922 BP |
7597 | case OFPTYPE_TABLE_DESC_REQUEST: |
7598 | return handle_table_desc_request(ofconn, oh); | |
7599 | ||
982697a4 BP |
7600 | case OFPTYPE_PORT_STATS_REQUEST: |
7601 | return handle_port_stats_request(ofconn, oh); | |
7602 | ||
7603 | case OFPTYPE_QUEUE_STATS_REQUEST: | |
7604 | return handle_queue_stats_request(ofconn, oh); | |
7605 | ||
7606 | case OFPTYPE_PORT_DESC_STATS_REQUEST: | |
7607 | return handle_port_desc_stats_request(ofconn, oh); | |
7608 | ||
7609 | case OFPTYPE_FLOW_MONITOR_STATS_REQUEST: | |
7610 | return handle_flow_monitor_request(ofconn, oh); | |
7611 | ||
261bd854 BP |
7612 | case OFPTYPE_METER_STATS_REQUEST: |
7613 | case OFPTYPE_METER_CONFIG_STATS_REQUEST: | |
9cae45dc JR |
7614 | return handle_meter_request(ofconn, oh, type); |
7615 | ||
261bd854 | 7616 | case OFPTYPE_METER_FEATURES_STATS_REQUEST: |
9cae45dc JR |
7617 | return handle_meter_features_request(ofconn, oh); |
7618 | ||
261bd854 | 7619 | case OFPTYPE_GROUP_STATS_REQUEST: |
7395c052 NZ |
7620 | return handle_group_stats_request(ofconn, oh); |
7621 | ||
261bd854 | 7622 | case OFPTYPE_GROUP_DESC_STATS_REQUEST: |
7395c052 NZ |
7623 | return handle_group_desc_stats_request(ofconn, oh); |
7624 | ||
261bd854 | 7625 | case OFPTYPE_GROUP_FEATURES_STATS_REQUEST: |
7395c052 NZ |
7626 | return handle_group_features_stats_request(ofconn, oh); |
7627 | ||
7395c052 | 7628 | case OFPTYPE_QUEUE_GET_CONFIG_REQUEST: |
e8f9a7bb | 7629 | return handle_queue_get_config_request(ofconn, oh); |
2e1ae200 | 7630 | |
777af88d AC |
7631 | case OFPTYPE_BUNDLE_CONTROL: |
7632 | return handle_bundle_control(ofconn, oh); | |
7633 | ||
7634 | case OFPTYPE_BUNDLE_ADD_MESSAGE: | |
7635 | return handle_bundle_add(ofconn, oh); | |
7636 | ||
4e548ad9 ML |
7637 | case OFPTYPE_NXT_TLV_TABLE_MOD: |
7638 | return handle_tlv_table_mod(ofconn, oh); | |
6159c531 | 7639 | |
4e548ad9 ML |
7640 | case OFPTYPE_NXT_TLV_TABLE_REQUEST: |
7641 | return handle_tlv_table_request(ofconn, oh); | |
6159c531 | 7642 | |
fb8f22c1 BY |
7643 | case OFPTYPE_IPFIX_BRIDGE_STATS_REQUEST: |
7644 | return handle_ipfix_bridge_stats_request(ofconn, oh); | |
7645 | ||
7646 | case OFPTYPE_IPFIX_FLOW_STATS_REQUEST: | |
7647 | return handle_ipfix_flow_stats_request(ofconn, oh); | |
7648 | ||
982697a4 BP |
7649 | case OFPTYPE_HELLO: |
7650 | case OFPTYPE_ERROR: | |
7651 | case OFPTYPE_FEATURES_REPLY: | |
7652 | case OFPTYPE_GET_CONFIG_REPLY: | |
7653 | case OFPTYPE_PACKET_IN: | |
7654 | case OFPTYPE_FLOW_REMOVED: | |
7655 | case OFPTYPE_PORT_STATUS: | |
7656 | case OFPTYPE_BARRIER_REPLY: | |
c545d38d | 7657 | case OFPTYPE_QUEUE_GET_CONFIG_REPLY: |
982697a4 BP |
7658 | case OFPTYPE_DESC_STATS_REPLY: |
7659 | case OFPTYPE_FLOW_STATS_REPLY: | |
7660 | case OFPTYPE_QUEUE_STATS_REPLY: | |
7661 | case OFPTYPE_PORT_STATS_REPLY: | |
7662 | case OFPTYPE_TABLE_STATS_REPLY: | |
7663 | case OFPTYPE_AGGREGATE_STATS_REPLY: | |
7664 | case OFPTYPE_PORT_DESC_STATS_REPLY: | |
7665 | case OFPTYPE_ROLE_REPLY: | |
7666 | case OFPTYPE_FLOW_MONITOR_PAUSED: | |
7667 | case OFPTYPE_FLOW_MONITOR_RESUMED: | |
7668 | case OFPTYPE_FLOW_MONITOR_STATS_REPLY: | |
2e1ae200 | 7669 | case OFPTYPE_GET_ASYNC_REPLY: |
261bd854 BP |
7670 | case OFPTYPE_GROUP_STATS_REPLY: |
7671 | case OFPTYPE_GROUP_DESC_STATS_REPLY: | |
7672 | case OFPTYPE_GROUP_FEATURES_STATS_REPLY: | |
7673 | case OFPTYPE_METER_STATS_REPLY: | |
7674 | case OFPTYPE_METER_CONFIG_STATS_REPLY: | |
7675 | case OFPTYPE_METER_FEATURES_STATS_REPLY: | |
7676 | case OFPTYPE_TABLE_FEATURES_STATS_REPLY: | |
03c72922 | 7677 | case OFPTYPE_TABLE_DESC_REPLY: |
252f3411 | 7678 | case OFPTYPE_ROLE_STATUS: |
3c35db62 | 7679 | case OFPTYPE_REQUESTFORWARD: |
6c6eedc5 | 7680 | case OFPTYPE_TABLE_STATUS: |
4e548ad9 | 7681 | case OFPTYPE_NXT_TLV_TABLE_REPLY: |
fb8f22c1 BY |
7682 | case OFPTYPE_IPFIX_BRIDGE_STATS_REPLY: |
7683 | case OFPTYPE_IPFIX_FLOW_STATS_REPLY: | |
064af421 | 7684 | default: |
76ec08e0 YT |
7685 | if (ofpmsg_is_stat_request(oh)) { |
7686 | return OFPERR_OFPBRC_BAD_STAT; | |
7687 | } else { | |
7688 | return OFPERR_OFPBRC_BAD_TYPE; | |
7689 | } | |
064af421 | 7690 | } |
d1e2cf21 | 7691 | } |
064af421 | 7692 | |
b20f4073 | 7693 | static void |
e03248b7 | 7694 | handle_openflow(struct ofconn *ofconn, const struct ofpbuf *ofp_msg) |
15aaf599 | 7695 | OVS_EXCLUDED(ofproto_mutex) |
d1e2cf21 | 7696 | { |
d51c8b71 JR |
7697 | enum ofperr error = handle_openflow__(ofconn, ofp_msg); |
7698 | ||
b20f4073 | 7699 | if (error) { |
6fd6ed71 | 7700 | ofconn_send_error(ofconn, ofp_msg->data, error); |
064af421 | 7701 | } |
d1e2cf21 | 7702 | COVERAGE_INC(ofproto_recv_openflow); |
7ee20df1 BP |
7703 | } |
7704 | \f | |
064af421 | 7705 | static uint64_t |
fa60c019 | 7706 | pick_datapath_id(const struct ofproto *ofproto) |
064af421 | 7707 | { |
fa60c019 | 7708 | const struct ofport *port; |
064af421 | 7709 | |
abe529af | 7710 | port = ofproto_get_port(ofproto, OFPP_LOCAL); |
fa60c019 | 7711 | if (port) { |
74ff3298 | 7712 | struct eth_addr ea; |
fa60c019 BP |
7713 | int error; |
7714 | ||
74ff3298 | 7715 | error = netdev_get_etheraddr(port->netdev, &ea); |
064af421 BP |
7716 | if (!error) { |
7717 | return eth_addr_to_uint64(ea); | |
7718 | } | |
fbfa2911 BP |
7719 | VLOG_WARN("%s: could not get MAC address for %s (%s)", |
7720 | ofproto->name, netdev_get_name(port->netdev), | |
10a89ef0 | 7721 | ovs_strerror(error)); |
064af421 | 7722 | } |
fa60c019 | 7723 | return ofproto->fallback_dpid; |
064af421 BP |
7724 | } |
7725 | ||
7726 | static uint64_t | |
7727 | pick_fallback_dpid(void) | |
7728 | { | |
74ff3298 JR |
7729 | struct eth_addr ea; |
7730 | eth_addr_nicira_random(&ea); | |
064af421 BP |
7731 | return eth_addr_to_uint64(ea); |
7732 | } | |
7733 | \f | |
254750ce BP |
7734 | /* Table overflow policy. */ |
7735 | ||
ad3efdcb EJ |
7736 | /* Chooses and updates 'rulep' with a rule to evict from 'table'. Sets 'rulep' |
7737 | * to NULL if the table is not configured to evict rules or if the table | |
7738 | * contains no evictable rules. (Rules with a readlock on their evict rwlock, | |
7739 | * or with no timeouts are not evictable.) */ | |
7740 | static bool | |
7741 | choose_rule_to_evict(struct oftable *table, struct rule **rulep) | |
15aaf599 | 7742 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
7743 | { |
7744 | struct eviction_group *evg; | |
7745 | ||
ad3efdcb | 7746 | *rulep = NULL; |
82c22d34 | 7747 | if (!table->eviction) { |
ad3efdcb | 7748 | return false; |
254750ce BP |
7749 | } |
7750 | ||
7751 | /* In the common case, the outer and inner loops here will each be entered | |
7752 | * exactly once: | |
7753 | * | |
7754 | * - The inner loop normally "return"s in its first iteration. If the | |
7755 | * eviction group has any evictable rules, then it always returns in | |
7756 | * some iteration. | |
7757 | * | |
7758 | * - The outer loop only iterates more than once if the largest eviction | |
7759 | * group has no evictable rules. | |
7760 | * | |
7761 | * - The outer loop can exit only if table's 'max_flows' is all filled up | |
afe2143d | 7762 | * by unevictable rules. */ |
254750ce BP |
7763 | HEAP_FOR_EACH (evg, size_node, &table->eviction_groups_by_size) { |
7764 | struct rule *rule; | |
7765 | ||
7766 | HEAP_FOR_EACH (rule, evg_node, &evg->rules) { | |
15aaf599 BP |
7767 | *rulep = rule; |
7768 | return true; | |
254750ce BP |
7769 | } |
7770 | } | |
7771 | ||
ad3efdcb | 7772 | return false; |
254750ce | 7773 | } |
254750ce BP |
7774 | \f |
7775 | /* Eviction groups. */ | |
7776 | ||
7777 | /* Returns the priority to use for an eviction_group that contains 'n_rules' | |
7778 | * rules. The priority contains low-order random bits to ensure that eviction | |
7779 | * groups with the same number of rules are prioritized randomly. */ | |
7780 | static uint32_t | |
7781 | eviction_group_priority(size_t n_rules) | |
7782 | { | |
7783 | uint16_t size = MIN(UINT16_MAX, n_rules); | |
7784 | return (size << 16) | random_uint16(); | |
7785 | } | |
7786 | ||
7787 | /* Updates 'evg', an eviction_group within 'table', following a change that | |
7788 | * adds or removes rules in 'evg'. */ | |
7789 | static void | |
7790 | eviction_group_resized(struct oftable *table, struct eviction_group *evg) | |
15aaf599 | 7791 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
7792 | { |
7793 | heap_change(&table->eviction_groups_by_size, &evg->size_node, | |
7794 | eviction_group_priority(heap_count(&evg->rules))); | |
7795 | } | |
7796 | ||
7797 | /* Destroys 'evg', an eviction_group within 'table': | |
7798 | * | |
7799 | * - Removes all the rules, if any, from 'evg'. (It doesn't destroy the | |
7800 | * rules themselves, just removes them from the eviction group.) | |
7801 | * | |
7802 | * - Removes 'evg' from 'table'. | |
7803 | * | |
7804 | * - Frees 'evg'. */ | |
7805 | static void | |
7806 | eviction_group_destroy(struct oftable *table, struct eviction_group *evg) | |
15aaf599 | 7807 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
7808 | { |
7809 | while (!heap_is_empty(&evg->rules)) { | |
7810 | struct rule *rule; | |
7811 | ||
7812 | rule = CONTAINER_OF(heap_pop(&evg->rules), struct rule, evg_node); | |
7813 | rule->eviction_group = NULL; | |
7814 | } | |
7815 | hmap_remove(&table->eviction_groups_by_id, &evg->id_node); | |
7816 | heap_remove(&table->eviction_groups_by_size, &evg->size_node); | |
7817 | heap_destroy(&evg->rules); | |
7818 | free(evg); | |
7819 | } | |
7820 | ||
7821 | /* Removes 'rule' from its eviction group, if any. */ | |
7822 | static void | |
7823 | eviction_group_remove_rule(struct rule *rule) | |
15aaf599 | 7824 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
7825 | { |
7826 | if (rule->eviction_group) { | |
7827 | struct oftable *table = &rule->ofproto->tables[rule->table_id]; | |
7828 | struct eviction_group *evg = rule->eviction_group; | |
7829 | ||
7830 | rule->eviction_group = NULL; | |
7831 | heap_remove(&evg->rules, &rule->evg_node); | |
7832 | if (heap_is_empty(&evg->rules)) { | |
7833 | eviction_group_destroy(table, evg); | |
7834 | } else { | |
7835 | eviction_group_resized(table, evg); | |
7836 | } | |
7837 | } | |
7838 | } | |
7839 | ||
7840 | /* Hashes the 'rule''s values for the eviction_fields of 'rule''s table, and | |
7841 | * returns the hash value. */ | |
7842 | static uint32_t | |
7843 | eviction_group_hash_rule(struct rule *rule) | |
15aaf599 | 7844 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
7845 | { |
7846 | struct oftable *table = &rule->ofproto->tables[rule->table_id]; | |
7847 | const struct mf_subfield *sf; | |
5cb7a798 | 7848 | struct flow flow; |
254750ce BP |
7849 | uint32_t hash; |
7850 | ||
7851 | hash = table->eviction_group_id_basis; | |
8fd47924 | 7852 | miniflow_expand(rule->cr.match.flow, &flow); |
254750ce BP |
7853 | for (sf = table->eviction_fields; |
7854 | sf < &table->eviction_fields[table->n_eviction_fields]; | |
7855 | sf++) | |
7856 | { | |
aff49b8c | 7857 | if (mf_are_prereqs_ok(sf->field, &flow, NULL)) { |
254750ce BP |
7858 | union mf_value value; |
7859 | ||
5cb7a798 | 7860 | mf_get_value(sf->field, &flow, &value); |
254750ce BP |
7861 | if (sf->ofs) { |
7862 | bitwise_zero(&value, sf->field->n_bytes, 0, sf->ofs); | |
7863 | } | |
7864 | if (sf->ofs + sf->n_bits < sf->field->n_bytes * 8) { | |
7865 | unsigned int start = sf->ofs + sf->n_bits; | |
7866 | bitwise_zero(&value, sf->field->n_bytes, start, | |
7867 | sf->field->n_bytes * 8 - start); | |
7868 | } | |
7869 | hash = hash_bytes(&value, sf->field->n_bytes, hash); | |
7870 | } else { | |
7871 | hash = hash_int(hash, 0); | |
7872 | } | |
7873 | } | |
7874 | ||
7875 | return hash; | |
7876 | } | |
7877 | ||
7878 | /* Returns an eviction group within 'table' with the given 'id', creating one | |
7879 | * if necessary. */ | |
7880 | static struct eviction_group * | |
7881 | eviction_group_find(struct oftable *table, uint32_t id) | |
15aaf599 | 7882 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
7883 | { |
7884 | struct eviction_group *evg; | |
7885 | ||
7886 | HMAP_FOR_EACH_WITH_HASH (evg, id_node, id, &table->eviction_groups_by_id) { | |
7887 | return evg; | |
7888 | } | |
7889 | ||
7890 | evg = xmalloc(sizeof *evg); | |
7891 | hmap_insert(&table->eviction_groups_by_id, &evg->id_node, id); | |
7892 | heap_insert(&table->eviction_groups_by_size, &evg->size_node, | |
7893 | eviction_group_priority(0)); | |
7894 | heap_init(&evg->rules); | |
7895 | ||
7896 | return evg; | |
7897 | } | |
7898 | ||
7899 | /* Returns an eviction priority for 'rule'. The return value should be | |
f70b94de BP |
7900 | * interpreted so that higher priorities make a rule a more attractive |
7901 | * candidate for eviction. */ | |
7902 | static uint64_t | |
dc437090 | 7903 | rule_eviction_priority(struct ofproto *ofproto, struct rule *rule) |
15aaf599 | 7904 | OVS_REQUIRES(ofproto_mutex) |
254750ce | 7905 | { |
f70b94de BP |
7906 | /* Calculate absolute time when this flow will expire. If it will never |
7907 | * expire, then return 0 to make it unevictable. */ | |
dc437090 | 7908 | long long int expiration = LLONG_MAX; |
dc437090 | 7909 | if (rule->hard_timeout) { |
f70b94de BP |
7910 | /* 'modified' needs protection even when we hold 'ofproto_mutex'. */ |
7911 | ovs_mutex_lock(&rule->mutex); | |
7912 | long long int modified = rule->modified; | |
7913 | ovs_mutex_unlock(&rule->mutex); | |
7914 | ||
dc437090 JR |
7915 | expiration = modified + rule->hard_timeout * 1000; |
7916 | } | |
7917 | if (rule->idle_timeout) { | |
7918 | uint64_t packets, bytes; | |
7919 | long long int used; | |
7920 | long long int idle_expiration; | |
7921 | ||
7922 | ofproto->ofproto_class->rule_get_stats(rule, &packets, &bytes, &used); | |
7923 | idle_expiration = used + rule->idle_timeout * 1000; | |
7924 | expiration = MIN(expiration, idle_expiration); | |
7925 | } | |
254750ce BP |
7926 | if (expiration == LLONG_MAX) { |
7927 | return 0; | |
7928 | } | |
7929 | ||
7930 | /* Calculate the time of expiration as a number of (approximate) seconds | |
7931 | * after program startup. | |
7932 | * | |
7933 | * This should work OK for program runs that last UINT32_MAX seconds or | |
7934 | * less. Therefore, please restart OVS at least once every 136 years. */ | |
f70b94de | 7935 | uint32_t expiration_ofs = (expiration >> 10) - (time_boot_msec() >> 10); |
254750ce | 7936 | |
f70b94de BP |
7937 | /* Combine expiration time with OpenFlow "importance" to form a single |
7938 | * priority value. We want flows with relatively low "importance" to be | |
7939 | * evicted before even considering expiration time, so put "importance" in | |
7940 | * the most significant bits and expiration time in the least significant | |
7941 | * bits. | |
7942 | * | |
7943 | * Small 'priority' should be evicted before those with large 'priority'. | |
7944 | * The caller expects the opposite convention (a large return value being | |
7945 | * more attractive for eviction) so we invert it before returning. */ | |
7946 | uint64_t priority = ((uint64_t) rule->importance << 32) + expiration_ofs; | |
7947 | return UINT64_MAX - priority; | |
254750ce BP |
7948 | } |
7949 | ||
7950 | /* Adds 'rule' to an appropriate eviction group for its oftable's | |
7951 | * configuration. Does nothing if 'rule''s oftable doesn't have eviction | |
7952 | * enabled, or if 'rule' is a permanent rule (one that will never expire on its | |
7953 | * own). | |
7954 | * | |
7955 | * The caller must ensure that 'rule' is not already in an eviction group. */ | |
7956 | static void | |
7957 | eviction_group_add_rule(struct rule *rule) | |
15aaf599 | 7958 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
7959 | { |
7960 | struct ofproto *ofproto = rule->ofproto; | |
7961 | struct oftable *table = &ofproto->tables[rule->table_id]; | |
a3779dbc | 7962 | bool has_timeout; |
254750ce | 7963 | |
dc437090 JR |
7964 | /* Timeouts may be modified only when holding 'ofproto_mutex'. We have it |
7965 | * so no additional protection is needed. */ | |
a3779dbc | 7966 | has_timeout = rule->hard_timeout || rule->idle_timeout; |
a3779dbc | 7967 | |
82c22d34 | 7968 | if (table->eviction && has_timeout) { |
254750ce BP |
7969 | struct eviction_group *evg; |
7970 | ||
7971 | evg = eviction_group_find(table, eviction_group_hash_rule(rule)); | |
7972 | ||
7973 | rule->eviction_group = evg; | |
7974 | heap_insert(&evg->rules, &rule->evg_node, | |
dc437090 | 7975 | rule_eviction_priority(ofproto, rule)); |
254750ce BP |
7976 | eviction_group_resized(table, evg); |
7977 | } | |
7978 | } | |
7979 | \f | |
d0918789 BP |
7980 | /* oftables. */ |
7981 | ||
7982 | /* Initializes 'table'. */ | |
7983 | static void | |
7984 | oftable_init(struct oftable *table) | |
7985 | { | |
5c67e4af | 7986 | memset(table, 0, sizeof *table); |
d70e8c28 | 7987 | classifier_init(&table->cls, flow_segment_u64s); |
ec1c5c7e | 7988 | table->max_flows = UINT_MAX; |
d79e3d70 | 7989 | table->n_flows = 0; |
82c22d34 BP |
7990 | hmap_init(&table->eviction_groups_by_id); |
7991 | heap_init(&table->eviction_groups_by_size); | |
3c1bb396 | 7992 | atomic_init(&table->miss_config, OFPUTIL_TABLE_MISS_DEFAULT); |
f017d986 | 7993 | |
f017d986 JR |
7994 | classifier_set_prefix_fields(&table->cls, default_prefix_fields, |
7995 | ARRAY_SIZE(default_prefix_fields)); | |
d611866c SH |
7996 | |
7997 | atomic_init(&table->n_matched, 0); | |
7998 | atomic_init(&table->n_missed, 0); | |
d0918789 BP |
7999 | } |
8000 | ||
254750ce | 8001 | /* Destroys 'table', including its classifier and eviction groups. |
d0918789 BP |
8002 | * |
8003 | * The caller is responsible for freeing 'table' itself. */ | |
8004 | static void | |
8005 | oftable_destroy(struct oftable *table) | |
8006 | { | |
cb22974d | 8007 | ovs_assert(classifier_is_empty(&table->cls)); |
82c22d34 | 8008 | |
7394b8fb | 8009 | ovs_mutex_lock(&ofproto_mutex); |
82c22d34 | 8010 | oftable_configure_eviction(table, 0, NULL, 0); |
7394b8fb | 8011 | ovs_mutex_unlock(&ofproto_mutex); |
82c22d34 BP |
8012 | |
8013 | hmap_destroy(&table->eviction_groups_by_id); | |
8014 | heap_destroy(&table->eviction_groups_by_size); | |
d0918789 | 8015 | classifier_destroy(&table->cls); |
254750ce BP |
8016 | free(table->name); |
8017 | } | |
8018 | ||
8019 | /* Changes the name of 'table' to 'name'. If 'name' is NULL or the empty | |
8020 | * string, then 'table' will use its default name. | |
8021 | * | |
8022 | * This only affects the name exposed for a table exposed through the OpenFlow | |
8023 | * OFPST_TABLE (as printed by "ovs-ofctl dump-tables"). */ | |
8024 | static void | |
8025 | oftable_set_name(struct oftable *table, const char *name) | |
8026 | { | |
8027 | if (name && name[0]) { | |
8028 | int len = strnlen(name, OFP_MAX_TABLE_NAME_LEN); | |
8029 | if (!table->name || strncmp(name, table->name, len)) { | |
8030 | free(table->name); | |
8031 | table->name = xmemdup0(name, len); | |
8032 | } | |
8033 | } else { | |
8034 | free(table->name); | |
8035 | table->name = NULL; | |
8036 | } | |
8037 | } | |
8038 | ||
254750ce BP |
8039 | /* oftables support a choice of two policies when adding a rule would cause the |
8040 | * number of flows in the table to exceed the configured maximum number: either | |
8041 | * they can refuse to add the new flow or they can evict some existing flow. | |
8042 | * This function configures the latter policy on 'table', with fairness based | |
8043 | * on the values of the 'n_fields' fields specified in 'fields'. (Specifying | |
8044 | * 'n_fields' as 0 disables fairness.) */ | |
8045 | static void | |
82c22d34 BP |
8046 | oftable_configure_eviction(struct oftable *table, unsigned int eviction, |
8047 | const struct mf_subfield *fields, size_t n_fields) | |
15aaf599 | 8048 | OVS_REQUIRES(ofproto_mutex) |
254750ce | 8049 | { |
254750ce BP |
8050 | struct rule *rule; |
8051 | ||
82c22d34 | 8052 | if ((table->eviction != 0) == (eviction != 0) |
254750ce BP |
8053 | && n_fields == table->n_eviction_fields |
8054 | && (!n_fields | |
8055 | || !memcmp(fields, table->eviction_fields, | |
8056 | n_fields * sizeof *fields))) { | |
82c22d34 BP |
8057 | /* The set of eviction fields did not change. If 'eviction' changed, |
8058 | * it remains nonzero, so that we can just update table->eviction | |
8059 | * without fussing with the eviction groups. */ | |
8060 | table->eviction = eviction; | |
254750ce BP |
8061 | return; |
8062 | } | |
8063 | ||
82c22d34 BP |
8064 | /* Destroy existing eviction groups, then destroy and recreate data |
8065 | * structures to recover memory. */ | |
8066 | struct eviction_group *evg, *next; | |
8067 | HMAP_FOR_EACH_SAFE (evg, next, id_node, &table->eviction_groups_by_id) { | |
8068 | eviction_group_destroy(table, evg); | |
8069 | } | |
8070 | hmap_destroy(&table->eviction_groups_by_id); | |
254750ce | 8071 | hmap_init(&table->eviction_groups_by_id); |
82c22d34 | 8072 | heap_destroy(&table->eviction_groups_by_size); |
254750ce BP |
8073 | heap_init(&table->eviction_groups_by_size); |
8074 | ||
82c22d34 BP |
8075 | /* Replace eviction groups by the new ones, if there is a change. Free the |
8076 | * old fields only after allocating the new ones, because 'fields == | |
8077 | * table->eviction_fields' is possible. */ | |
8078 | struct mf_subfield *old_fields = table->eviction_fields; | |
8079 | table->n_eviction_fields = n_fields; | |
8080 | table->eviction_fields = (fields | |
8081 | ? xmemdup(fields, n_fields * sizeof *fields) | |
8082 | : NULL); | |
8083 | free(old_fields); | |
8084 | ||
8085 | /* Add the new eviction groups, if enabled. */ | |
8086 | table->eviction = eviction; | |
8087 | if (table->eviction) { | |
8088 | table->eviction_group_id_basis = random_uint32(); | |
8089 | CLS_FOR_EACH (rule, cr, &table->cls) { | |
8090 | eviction_group_add_rule(rule); | |
8091 | } | |
254750ce | 8092 | } |
d0918789 BP |
8093 | } |
8094 | ||
bc5e6a91 JR |
8095 | /* Inserts 'rule' from the ofproto data structures BEFORE caller has inserted |
8096 | * it to the classifier. */ | |
8097 | static void | |
8098 | ofproto_rule_insert__(struct ofproto *ofproto, struct rule *rule) | |
8099 | OVS_REQUIRES(ofproto_mutex) | |
8100 | { | |
8101 | const struct rule_actions *actions = rule_get_actions(rule); | |
8102 | ||
30d0452c JR |
8103 | /* A rule may not be reinserted. */ |
8104 | ovs_assert(rule->state == RULE_INITIALIZED); | |
39c94593 | 8105 | |
bc5e6a91 | 8106 | if (rule->hard_timeout || rule->idle_timeout) { |
417e7e66 | 8107 | ovs_list_insert(&ofproto->expirable, &rule->expirable); |
bc5e6a91 JR |
8108 | } |
8109 | cookies_insert(ofproto, rule); | |
8110 | eviction_group_add_rule(rule); | |
8111 | if (actions->has_meter) { | |
8112 | meter_insert_rule(rule); | |
8113 | } | |
cc099268 JR |
8114 | if (actions->has_groups) { |
8115 | const struct ofpact_group *a; | |
8116 | OFPACT_FOR_EACH_TYPE_FLATTENED (a, GROUP, actions->ofpacts, | |
8117 | actions->ofpacts_len) { | |
8118 | struct ofgroup *group; | |
8119 | ||
5d08a275 JR |
8120 | group = ofproto_group_lookup(ofproto, a->group_id, OVS_VERSION_MAX, |
8121 | false); | |
cc099268 JR |
8122 | ovs_assert(group != NULL); |
8123 | group_add_rule(group, rule); | |
8124 | } | |
8125 | } | |
8126 | ||
30d0452c | 8127 | rule->state = RULE_INSERTED; |
bc5e6a91 JR |
8128 | } |
8129 | ||
6787a49f JR |
8130 | /* Removes 'rule' from the ofproto data structures. Caller may have deferred |
8131 | * the removal from the classifier. */ | |
d0918789 | 8132 | static void |
802f84ff | 8133 | ofproto_rule_remove__(struct ofproto *ofproto, struct rule *rule) |
15aaf599 | 8134 | OVS_REQUIRES(ofproto_mutex) |
d0918789 | 8135 | { |
30d0452c | 8136 | ovs_assert(rule->state == RULE_INSERTED); |
39c94593 | 8137 | |
98eaac36 | 8138 | cookies_remove(ofproto, rule); |
2c916028 | 8139 | |
254750ce | 8140 | eviction_group_remove_rule(rule); |
417e7e66 BW |
8141 | if (!ovs_list_is_empty(&rule->expirable)) { |
8142 | ovs_list_remove(&rule->expirable); | |
e503cc19 | 8143 | } |
417e7e66 BW |
8144 | if (!ovs_list_is_empty(&rule->meter_list_node)) { |
8145 | ovs_list_remove(&rule->meter_list_node); | |
8146 | ovs_list_init(&rule->meter_list_node); | |
9cae45dc | 8147 | } |
802f84ff | 8148 | |
cc099268 JR |
8149 | /* Remove the rule from any groups, except from the group that is being |
8150 | * deleted, if any. */ | |
8151 | const struct rule_actions *actions = rule_get_actions(rule); | |
8152 | ||
8153 | if (actions->has_groups) { | |
8154 | const struct ofpact_group *a; | |
8155 | ||
8156 | OFPACT_FOR_EACH_TYPE (a, GROUP, actions->ofpacts, | |
8157 | actions->ofpacts_len) { | |
8158 | struct ofgroup *group; | |
8159 | ||
5d08a275 JR |
8160 | group = ofproto_group_lookup(ofproto, a->group_id, OVS_VERSION_MAX, |
8161 | false); | |
cc099268 JR |
8162 | ovs_assert(group); |
8163 | ||
8164 | /* Leave the rule for the group that is being deleted, if any, | |
8165 | * as we still need the list of rules for clean-up. */ | |
8166 | if (!group->being_deleted) { | |
8167 | group_remove_rule(group, rule); | |
8168 | } | |
8169 | } | |
8170 | } | |
8171 | ||
30d0452c | 8172 | rule->state = RULE_REMOVED; |
0b4f2078 | 8173 | } |
d0918789 | 8174 | \f |
abe529af | 8175 | /* unixctl commands. */ |
7aa697dd | 8176 | |
abe529af | 8177 | struct ofproto * |
2ac6bedd | 8178 | ofproto_lookup(const char *name) |
7aa697dd | 8179 | { |
2ac6bedd | 8180 | struct ofproto *ofproto; |
7aa697dd | 8181 | |
2ac6bedd BP |
8182 | HMAP_FOR_EACH_WITH_HASH (ofproto, hmap_node, hash_string(name, 0), |
8183 | &all_ofprotos) { | |
8184 | if (!strcmp(ofproto->name, name)) { | |
8185 | return ofproto; | |
8186 | } | |
7aa697dd | 8187 | } |
2ac6bedd | 8188 | return NULL; |
7aa697dd BP |
8189 | } |
8190 | ||
8191 | static void | |
0e15264f BP |
8192 | ofproto_unixctl_list(struct unixctl_conn *conn, int argc OVS_UNUSED, |
8193 | const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED) | |
7aa697dd | 8194 | { |
7aa697dd | 8195 | struct ofproto *ofproto; |
7aa697dd | 8196 | struct ds results; |
7aa697dd | 8197 | |
7aa697dd | 8198 | ds_init(&results); |
2ac6bedd BP |
8199 | HMAP_FOR_EACH (ofproto, hmap_node, &all_ofprotos) { |
8200 | ds_put_format(&results, "%s\n", ofproto->name); | |
7aa697dd | 8201 | } |
bde9f75d | 8202 | unixctl_command_reply(conn, ds_cstr(&results)); |
7aa697dd | 8203 | ds_destroy(&results); |
7aa697dd BP |
8204 | } |
8205 | ||
8206 | static void | |
8207 | ofproto_unixctl_init(void) | |
8208 | { | |
8209 | static bool registered; | |
8210 | if (registered) { | |
8211 | return; | |
8212 | } | |
8213 | registered = true; | |
8214 | ||
0e15264f BP |
8215 | unixctl_command_register("ofproto/list", "", 0, 0, |
8216 | ofproto_unixctl_list, NULL); | |
064af421 | 8217 | } |