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064af421 | 1 | /* |
04f48a68 | 2 | * Copyright (c) 2009-2017 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" |
0d71302e | 44 | #include "openvswitch/ofp-bundle.h" |
d271907f | 45 | #include "openvswitch/ofp-errors.h" |
0d71302e | 46 | #include "openvswitch/ofp-match.h" |
d271907f | 47 | #include "openvswitch/ofp-msgs.h" |
0d71302e | 48 | #include "openvswitch/ofp-monitor.h" |
25d436fb | 49 | #include "openvswitch/ofp-print.h" |
0d71302e | 50 | #include "openvswitch/ofp-queue.h" |
d271907f BW |
51 | #include "openvswitch/ofp-util.h" |
52 | #include "openvswitch/ofpbuf.h" | |
53 | #include "openvswitch/vlog.h" | |
06a0f3e2 | 54 | #include "ovs-rcu.h" |
064af421 BP |
55 | #include "packets.h" |
56 | #include "pinsched.h" | |
fd016ae3 | 57 | #include "openvswitch/poll-loop.h" |
254750ce | 58 | #include "random.h" |
da4a6191 | 59 | #include "seq.h" |
ee89ea7b | 60 | #include "openvswitch/shash.h" |
0d085684 | 61 | #include "simap.h" |
e8f9a7bb | 62 | #include "smap.h" |
b3c01ed3 | 63 | #include "sset.h" |
064af421 | 64 | #include "timeval.h" |
9558d2a5 | 65 | #include "tun-metadata.h" |
c4617b3c | 66 | #include "unaligned.h" |
4f2cad2c | 67 | #include "unixctl.h" |
ee89ea7b | 68 | #include "util.h" |
064af421 | 69 | |
d98e6007 | 70 | VLOG_DEFINE_THIS_MODULE(ofproto); |
064af421 | 71 | |
d76f09ea | 72 | COVERAGE_DEFINE(ofproto_flush); |
d76f09ea BP |
73 | COVERAGE_DEFINE(ofproto_packet_out); |
74 | COVERAGE_DEFINE(ofproto_queue_req); | |
75 | COVERAGE_DEFINE(ofproto_recv_openflow); | |
76 | COVERAGE_DEFINE(ofproto_reinit_ports); | |
d76f09ea BP |
77 | COVERAGE_DEFINE(ofproto_update_port); |
78 | ||
f017d986 JR |
79 | /* Default fields to use for prefix tries in each flow table, unless something |
80 | * else is configured. */ | |
81 | const enum mf_field_id default_prefix_fields[2] = | |
82 | { MFF_IPV4_DST, MFF_IPV4_SRC }; | |
83 | ||
d0918789 BP |
84 | /* oftable. */ |
85 | static void oftable_init(struct oftable *); | |
86 | static void oftable_destroy(struct oftable *); | |
878ae780 | 87 | |
254750ce BP |
88 | static void oftable_set_name(struct oftable *, const char *name); |
89 | ||
6787a49f | 90 | static enum ofperr evict_rules_from_table(struct oftable *) |
834fe5cb | 91 | OVS_REQUIRES(ofproto_mutex); |
82c22d34 BP |
92 | static void oftable_configure_eviction(struct oftable *, |
93 | unsigned int eviction, | |
94 | const struct mf_subfield *fields, | |
95 | size_t n_fields) | |
7394b8fb | 96 | OVS_REQUIRES(ofproto_mutex); |
254750ce | 97 | |
82c22d34 BP |
98 | /* This is the only combination of OpenFlow eviction flags that OVS supports: a |
99 | * combination of OF1.4+ importance, the remaining lifetime of the flow, and | |
100 | * fairness based on user-specified fields. */ | |
101 | #define OFPROTO_EVICTION_FLAGS \ | |
102 | (OFPTMPEF14_OTHER | OFPTMPEF14_IMPORTANCE | OFPTMPEF14_LIFETIME) | |
103 | ||
254750ce BP |
104 | /* A set of rules within a single OpenFlow table (oftable) that have the same |
105 | * values for the oftable's eviction_fields. A rule to be evicted, when one is | |
106 | * needed, is taken from the eviction group that contains the greatest number | |
107 | * of rules. | |
108 | * | |
109 | * An oftable owns any number of eviction groups, each of which contains any | |
110 | * number of rules. | |
111 | * | |
112 | * Membership in an eviction group is imprecise, based on the hash of the | |
113 | * oftable's eviction_fields (in the eviction_group's id_node.hash member). | |
114 | * That is, if two rules have different eviction_fields, but those | |
115 | * eviction_fields hash to the same value, then they will belong to the same | |
116 | * eviction_group anyway. | |
117 | * | |
118 | * (When eviction is not enabled on an oftable, we don't track any eviction | |
119 | * groups, to save time and space.) */ | |
120 | struct eviction_group { | |
121 | struct hmap_node id_node; /* In oftable's "eviction_groups_by_id". */ | |
122 | struct heap_node size_node; /* In oftable's "eviction_groups_by_size". */ | |
123 | struct heap rules; /* Contains "struct rule"s. */ | |
124 | }; | |
125 | ||
3d900aa7 BP |
126 | static bool choose_rule_to_evict(struct oftable *table, struct rule **rulep) |
127 | OVS_REQUIRES(ofproto_mutex); | |
f70b94de BP |
128 | static uint64_t rule_eviction_priority(struct ofproto *ofproto, struct rule *) |
129 | OVS_REQUIRES(ofproto_mutex); | |
3d900aa7 BP |
130 | static void eviction_group_add_rule(struct rule *) |
131 | OVS_REQUIRES(ofproto_mutex); | |
132 | static void eviction_group_remove_rule(struct rule *) | |
133 | OVS_REQUIRES(ofproto_mutex); | |
f29152ca | 134 | |
a9b22b7f | 135 | static void rule_criteria_init(struct rule_criteria *, uint8_t table_id, |
6a6b7060 | 136 | const struct minimatch *match, int priority, |
44e0c35d | 137 | ovs_version_t version, |
a9b22b7f BP |
138 | ovs_be64 cookie, ovs_be64 cookie_mask, |
139 | ofp_port_t out_port, uint32_t out_group); | |
dd51dae2 BP |
140 | static void rule_criteria_require_rw(struct rule_criteria *, |
141 | bool can_write_readonly); | |
a9b22b7f BP |
142 | static void rule_criteria_destroy(struct rule_criteria *); |
143 | ||
35f48b8b BP |
144 | static enum ofperr collect_rules_loose(struct ofproto *, |
145 | const struct rule_criteria *, | |
146 | struct rule_collection *); | |
147 | ||
35f48b8b BP |
148 | struct learned_cookie { |
149 | union { | |
150 | /* In struct ofproto's 'learned_cookies' hmap. */ | |
151 | struct hmap_node hmap_node OVS_GUARDED_BY(ofproto_mutex); | |
152 | ||
153 | /* In 'dead_cookies' list when removed from hmap. */ | |
ca6ba700 | 154 | struct ovs_list list_node; |
fa37affa | 155 | }; |
35f48b8b BP |
156 | |
157 | /* Key. */ | |
158 | ovs_be64 cookie OVS_GUARDED_BY(ofproto_mutex); | |
159 | uint8_t table_id OVS_GUARDED_BY(ofproto_mutex); | |
160 | ||
161 | /* Number of references from "learn" actions. | |
162 | * | |
163 | * When this drops to 0, all of the flows in 'table_id' with the specified | |
164 | * 'cookie' are deleted. */ | |
165 | int n OVS_GUARDED_BY(ofproto_mutex); | |
166 | }; | |
167 | ||
168 | static const struct ofpact_learn *next_learn_with_delete( | |
169 | const struct rule_actions *, const struct ofpact_learn *start); | |
170 | ||
171 | static void learned_cookies_inc(struct ofproto *, const struct rule_actions *) | |
172 | OVS_REQUIRES(ofproto_mutex); | |
173 | static void learned_cookies_dec(struct ofproto *, const struct rule_actions *, | |
ca6ba700 | 174 | struct ovs_list *dead_cookies) |
35f48b8b | 175 | OVS_REQUIRES(ofproto_mutex); |
ca6ba700 | 176 | static void learned_cookies_flush(struct ofproto *, struct ovs_list *dead_cookies) |
35f48b8b BP |
177 | OVS_REQUIRES(ofproto_mutex); |
178 | ||
d0918789 | 179 | /* ofport. */ |
15aaf599 | 180 | static void ofport_destroy__(struct ofport *) OVS_EXCLUDED(ofproto_mutex); |
9aad5a5a | 181 | static void ofport_destroy(struct ofport *, bool del); |
3a414a0a DDP |
182 | static bool ofport_is_mtu_overridden(const struct ofproto *, |
183 | const struct ofport *); | |
d0918789 | 184 | |
01c77073 | 185 | static int update_port(struct ofproto *, const char *devname); |
d0918789 BP |
186 | static int init_ports(struct ofproto *); |
187 | static void reinit_ports(struct ofproto *); | |
7ee20df1 | 188 | |
fdcea803 GS |
189 | static long long int ofport_get_usage(const struct ofproto *, |
190 | ofp_port_t ofp_port); | |
191 | static void ofport_set_usage(struct ofproto *, ofp_port_t ofp_port, | |
192 | long long int last_used); | |
865b26a4 | 193 | static void ofport_remove_usage(struct ofproto *, ofp_port_t ofp_port); |
fdcea803 GS |
194 | |
195 | /* Ofport usage. | |
196 | * | |
197 | * Keeps track of the currently used and recently used ofport values and is | |
198 | * used to prevent immediate recycling of ofport values. */ | |
199 | struct ofport_usage { | |
200 | struct hmap_node hmap_node; /* In struct ofproto's "ofport_usage" hmap. */ | |
201 | ofp_port_t ofp_port; /* OpenFlow port number. */ | |
202 | long long int last_used; /* Last time the 'ofp_port' was used. LLONG_MAX | |
203 | represents in-use ofports. */ | |
204 | }; | |
205 | ||
254750ce | 206 | /* rule. */ |
f695ebfa JR |
207 | static void ofproto_rule_send_removed(struct rule *) |
208 | OVS_EXCLUDED(ofproto_mutex); | |
834fe5cb | 209 | static bool rule_is_readonly(const struct rule *); |
bc5e6a91 JR |
210 | static void ofproto_rule_insert__(struct ofproto *, struct rule *) |
211 | OVS_REQUIRES(ofproto_mutex); | |
802f84ff JR |
212 | static void ofproto_rule_remove__(struct ofproto *, struct rule *) |
213 | OVS_REQUIRES(ofproto_mutex); | |
254750ce | 214 | |
0a0d9385 | 215 | /* The source of an OpenFlow request. |
baae3d02 | 216 | * |
0a0d9385 JR |
217 | * A table modification request can be generated externally, via OpenFlow, or |
218 | * internally through a function call. This structure indicates the source of | |
219 | * an OpenFlow-generated table modification. For an internal flow_mod, it | |
220 | * isn't meaningful and thus supplied as NULL. */ | |
221 | struct openflow_mod_requester { | |
baae3d02 | 222 | struct ofconn *ofconn; /* Connection on which flow_mod arrived. */ |
c84d8691 | 223 | const struct ofp_header *request; |
baae3d02 BP |
224 | }; |
225 | ||
d0918789 | 226 | /* OpenFlow. */ |
5bacd5cd JR |
227 | static enum ofperr ofproto_rule_create(struct ofproto *, struct cls_rule *, |
228 | uint8_t table_id, ovs_be64 new_cookie, | |
229 | uint16_t idle_timeout, | |
230 | uint16_t hard_timeout, | |
231 | enum ofputil_flow_mod_flags flags, | |
232 | uint16_t importance, | |
233 | const struct ofpact *ofpacts, | |
234 | size_t ofpacts_len, | |
5c7c16d8 YHW |
235 | uint64_t match_tlv_bitmap, |
236 | uint64_t ofpacts_tlv_bitmap, | |
39c94593 | 237 | struct rule **new_rule) |
5bacd5cd | 238 | OVS_NO_THREAD_SAFETY_ANALYSIS; |
39c94593 | 239 | |
5bacd5cd JR |
240 | static void replace_rule_start(struct ofproto *, struct ofproto_flow_mod *, |
241 | struct rule *old_rule, struct rule *new_rule) | |
dd27be82 | 242 | OVS_REQUIRES(ofproto_mutex); |
39c94593 | 243 | |
6787a49f JR |
244 | static void replace_rule_revert(struct ofproto *, struct rule *old_rule, |
245 | struct rule *new_rule) | |
39c94593 JR |
246 | OVS_REQUIRES(ofproto_mutex); |
247 | ||
81dee635 | 248 | static void replace_rule_finish(struct ofproto *, struct ofproto_flow_mod *, |
0a0d9385 | 249 | const struct openflow_mod_requester *, |
39c94593 JR |
250 | struct rule *old_rule, struct rule *new_rule, |
251 | struct ovs_list *dead_cookies) | |
dd27be82 | 252 | OVS_REQUIRES(ofproto_mutex); |
39c94593 | 253 | static void delete_flows__(struct rule_collection *, |
9ca4a86f | 254 | enum ofp_flow_removed_reason, |
0a0d9385 | 255 | const struct openflow_mod_requester *) |
15aaf599 | 256 | OVS_REQUIRES(ofproto_mutex); |
834fe5cb | 257 | |
d3b84833 BP |
258 | static void ofproto_group_delete_all__(struct ofproto *) |
259 | OVS_REQUIRES(ofproto_mutex); | |
db88b35c | 260 | static bool ofproto_group_exists(const struct ofproto *, uint32_t group_id); |
b20f4073 | 261 | static void handle_openflow(struct ofconn *, const struct ofpbuf *); |
5bacd5cd JR |
262 | static enum ofperr ofproto_flow_mod_init(struct ofproto *, |
263 | struct ofproto_flow_mod *, | |
2c7ee524 JR |
264 | const struct ofputil_flow_mod *fm, |
265 | struct rule *) | |
5bacd5cd | 266 | OVS_EXCLUDED(ofproto_mutex); |
8be00367 JR |
267 | static enum ofperr ofproto_flow_mod_start(struct ofproto *, |
268 | struct ofproto_flow_mod *) | |
1f42be1c | 269 | OVS_REQUIRES(ofproto_mutex); |
6dd3c787 JR |
270 | static void ofproto_flow_mod_revert(struct ofproto *, |
271 | struct ofproto_flow_mod *) | |
272 | OVS_REQUIRES(ofproto_mutex); | |
8be00367 JR |
273 | static void ofproto_flow_mod_finish(struct ofproto *, |
274 | struct ofproto_flow_mod *, | |
0a0d9385 | 275 | const struct openflow_mod_requester *) |
1f42be1c | 276 | OVS_REQUIRES(ofproto_mutex); |
baae3d02 | 277 | static enum ofperr handle_flow_mod__(struct ofproto *, |
7338102b | 278 | const struct ofputil_flow_mod *, |
0a0d9385 | 279 | const struct openflow_mod_requester *) |
15aaf599 | 280 | OVS_EXCLUDED(ofproto_mutex); |
65e0be10 BP |
281 | static void calc_duration(long long int start, long long int now, |
282 | uint32_t *sec, uint32_t *nsec); | |
f29152ca | 283 | |
d0918789 BP |
284 | /* ofproto. */ |
285 | static uint64_t pick_datapath_id(const struct ofproto *); | |
286 | static uint64_t pick_fallback_dpid(void); | |
287 | static void ofproto_destroy__(struct ofproto *); | |
ada3428f | 288 | static void update_mtu(struct ofproto *, struct ofport *); |
0670b5d0 | 289 | static void update_mtu_ofproto(struct ofproto *); |
ba8cff36 AZ |
290 | static void meter_delete(struct ofproto *, uint32_t); |
291 | static void meter_delete_all(struct ofproto *); | |
062fea06 | 292 | static void meter_insert_rule(struct rule *); |
f29152ca | 293 | |
d0918789 | 294 | /* unixctl. */ |
abe529af | 295 | static void ofproto_unixctl_init(void); |
f29152ca | 296 | |
abe529af BP |
297 | /* All registered ofproto classes, in probe order. */ |
298 | static const struct ofproto_class **ofproto_classes; | |
299 | static size_t n_ofproto_classes; | |
300 | static size_t allocated_ofproto_classes; | |
7aa697dd | 301 | |
15aaf599 BP |
302 | /* Global lock that protects all flow table operations. */ |
303 | struct ovs_mutex ofproto_mutex = OVS_MUTEX_INITIALIZER; | |
abe7b10f | 304 | |
e79a6c83 | 305 | unsigned ofproto_flow_limit = OFPROTO_FLOW_LIMIT_DEFAULT; |
72310b04 | 306 | unsigned ofproto_max_idle = OFPROTO_MAX_IDLE_DEFAULT; |
380f49c4 | 307 | |
e79a6c83 | 308 | size_t n_handlers, n_revalidators; |
6567010f | 309 | |
f797957a | 310 | /* Map from datapath name to struct ofproto, for use by unixctl commands. */ |
abe529af | 311 | static struct hmap all_ofprotos = HMAP_INITIALIZER(&all_ofprotos); |
ebe482fd | 312 | |
e1b1d06a JP |
313 | /* Initial mappings of port to OpenFlow number mappings. */ |
314 | static struct shash init_ofp_ports = SHASH_INITIALIZER(&init_ofp_ports); | |
315 | ||
abe529af | 316 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); |
f29152ca | 317 | |
40358701 GS |
318 | /* The default value of true waits for flow restore. */ |
319 | static bool flow_restore_wait = true; | |
320 | ||
b0408fca JP |
321 | /* Must be called to initialize the ofproto library. |
322 | * | |
323 | * The caller may pass in 'iface_hints', which contains an shash of | |
324 | * "iface_hint" elements indexed by the interface's name. The provider | |
325 | * may use these hints to describe the startup configuration in order to | |
326 | * reinitialize its state. The caller owns the provided data, so a | |
327 | * provider will make copies of anything required. An ofproto provider | |
328 | * will remove any existing state that is not described by the hint, and | |
329 | * may choose to remove it all. */ | |
330 | void | |
331 | ofproto_init(const struct shash *iface_hints) | |
abe529af | 332 | { |
e1b1d06a | 333 | struct shash_node *node; |
b0408fca | 334 | size_t i; |
f29152ca | 335 | |
b0408fca JP |
336 | ofproto_class_register(&ofproto_dpif_class); |
337 | ||
e1b1d06a JP |
338 | /* Make a local copy, since we don't own 'iface_hints' elements. */ |
339 | SHASH_FOR_EACH(node, iface_hints) { | |
340 | const struct iface_hint *orig_hint = node->data; | |
341 | struct iface_hint *new_hint = xmalloc(sizeof *new_hint); | |
342 | const char *br_type = ofproto_normalize_type(orig_hint->br_type); | |
343 | ||
344 | new_hint->br_name = xstrdup(orig_hint->br_name); | |
345 | new_hint->br_type = xstrdup(br_type); | |
346 | new_hint->ofp_port = orig_hint->ofp_port; | |
347 | ||
348 | shash_add(&init_ofp_ports, node->name, new_hint); | |
349 | } | |
350 | ||
b0408fca | 351 | for (i = 0; i < n_ofproto_classes; i++) { |
e1b1d06a | 352 | ofproto_classes[i]->init(&init_ofp_ports); |
abe529af | 353 | } |
0fc1f5c0 HH |
354 | |
355 | ofproto_unixctl_init(); | |
abe529af | 356 | } |
f29152ca | 357 | |
abe529af BP |
358 | /* 'type' should be a normalized datapath type, as returned by |
359 | * ofproto_normalize_type(). Returns the corresponding ofproto_class | |
360 | * structure, or a null pointer if there is none registered for 'type'. */ | |
361 | static const struct ofproto_class * | |
362 | ofproto_class_find__(const char *type) | |
363 | { | |
364 | size_t i; | |
f29152ca | 365 | |
abe529af BP |
366 | for (i = 0; i < n_ofproto_classes; i++) { |
367 | const struct ofproto_class *class = ofproto_classes[i]; | |
368 | struct sset types; | |
369 | bool found; | |
064af421 | 370 | |
abe529af BP |
371 | sset_init(&types); |
372 | class->enumerate_types(&types); | |
373 | found = sset_contains(&types, type); | |
374 | sset_destroy(&types); | |
bcf84111 | 375 | |
abe529af BP |
376 | if (found) { |
377 | return class; | |
378 | } | |
379 | } | |
380 | VLOG_WARN("unknown datapath type %s", type); | |
381 | return NULL; | |
382 | } | |
064af421 | 383 | |
abe529af BP |
384 | /* Registers a new ofproto class. After successful registration, new ofprotos |
385 | * of that type can be created using ofproto_create(). */ | |
386 | int | |
387 | ofproto_class_register(const struct ofproto_class *new_class) | |
388 | { | |
389 | size_t i; | |
7aa697dd | 390 | |
abe529af BP |
391 | for (i = 0; i < n_ofproto_classes; i++) { |
392 | if (ofproto_classes[i] == new_class) { | |
393 | return EEXIST; | |
394 | } | |
395 | } | |
064af421 | 396 | |
abe529af BP |
397 | if (n_ofproto_classes >= allocated_ofproto_classes) { |
398 | ofproto_classes = x2nrealloc(ofproto_classes, | |
399 | &allocated_ofproto_classes, | |
400 | sizeof *ofproto_classes); | |
401 | } | |
402 | ofproto_classes[n_ofproto_classes++] = new_class; | |
403 | return 0; | |
404 | } | |
064af421 | 405 | |
abe529af BP |
406 | /* Unregisters a datapath provider. 'type' must have been previously |
407 | * registered and not currently be in use by any ofprotos. After | |
408 | * unregistration new datapaths of that type cannot be opened using | |
409 | * ofproto_create(). */ | |
410 | int | |
411 | ofproto_class_unregister(const struct ofproto_class *class) | |
412 | { | |
413 | size_t i; | |
76ce9432 | 414 | |
abe529af BP |
415 | for (i = 0; i < n_ofproto_classes; i++) { |
416 | if (ofproto_classes[i] == class) { | |
417 | for (i++; i < n_ofproto_classes; i++) { | |
418 | ofproto_classes[i - 1] = ofproto_classes[i]; | |
419 | } | |
420 | n_ofproto_classes--; | |
421 | return 0; | |
422 | } | |
423 | } | |
424 | VLOG_WARN("attempted to unregister an ofproto class that is not " | |
425 | "registered"); | |
426 | return EAFNOSUPPORT; | |
427 | } | |
4a4cdb3b | 428 | |
f79e673f BP |
429 | /* Clears 'types' and enumerates all registered ofproto types into it. The |
430 | * caller must first initialize the sset. */ | |
431 | void | |
432 | ofproto_enumerate_types(struct sset *types) | |
433 | { | |
abe529af | 434 | size_t i; |
064af421 | 435 | |
c799c306 | 436 | sset_clear(types); |
abe529af BP |
437 | for (i = 0; i < n_ofproto_classes; i++) { |
438 | ofproto_classes[i]->enumerate_types(types); | |
439 | } | |
f79e673f | 440 | } |
064af421 | 441 | |
f79e673f BP |
442 | /* Returns the fully spelled out name for the given ofproto 'type'. |
443 | * | |
444 | * Normalized type string can be compared with strcmp(). Unnormalized type | |
445 | * string might be the same even if they have different spellings. */ | |
446 | const char * | |
447 | ofproto_normalize_type(const char *type) | |
448 | { | |
abe529af | 449 | return type && type[0] ? type : "system"; |
f79e673f | 450 | } |
064af421 | 451 | |
f79e673f BP |
452 | /* Clears 'names' and enumerates the names of all known created ofprotos with |
453 | * the given 'type'. The caller must first initialize the sset. Returns 0 if | |
454 | * successful, otherwise a positive errno value. | |
455 | * | |
456 | * Some kinds of datapaths might not be practically enumerable. This is not | |
457 | * considered an error. */ | |
458 | int | |
459 | ofproto_enumerate_names(const char *type, struct sset *names) | |
460 | { | |
abe529af BP |
461 | const struct ofproto_class *class = ofproto_class_find__(type); |
462 | return class ? class->enumerate_names(type, names) : EAFNOSUPPORT; | |
239ad7d1 | 463 | } |
7aa697dd | 464 | |
39c94593 JR |
465 | static void |
466 | ofproto_bump_tables_version(struct ofproto *ofproto) | |
467 | { | |
468 | ++ofproto->tables_version; | |
469 | ofproto->ofproto_class->set_tables_version(ofproto, | |
470 | ofproto->tables_version); | |
471 | } | |
472 | ||
064af421 | 473 | int |
abe529af | 474 | ofproto_create(const char *datapath_name, const char *datapath_type, |
064af421 | 475 | struct ofproto **ofprotop) |
25010c68 | 476 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 477 | { |
abe529af BP |
478 | const struct ofproto_class *class; |
479 | struct ofproto *ofproto; | |
064af421 | 480 | int error; |
c2f0373a | 481 | int i; |
064af421 BP |
482 | |
483 | *ofprotop = NULL; | |
484 | ||
abe529af BP |
485 | datapath_type = ofproto_normalize_type(datapath_type); |
486 | class = ofproto_class_find__(datapath_type); | |
487 | if (!class) { | |
488 | VLOG_WARN("could not create datapath %s of unknown type %s", | |
489 | datapath_name, datapath_type); | |
490 | return EAFNOSUPPORT; | |
064af421 BP |
491 | } |
492 | ||
abe529af BP |
493 | ofproto = class->alloc(); |
494 | if (!ofproto) { | |
495 | VLOG_ERR("failed to allocate datapath %s of type %s", | |
496 | datapath_name, datapath_type); | |
497 | return ENOMEM; | |
498 | } | |
499 | ||
500 | /* Initialize. */ | |
abe7b10f | 501 | ovs_mutex_lock(&ofproto_mutex); |
abe529af BP |
502 | memset(ofproto, 0, sizeof *ofproto); |
503 | ofproto->ofproto_class = class; | |
504 | ofproto->name = xstrdup(datapath_name); | |
505 | ofproto->type = xstrdup(datapath_type); | |
506 | hmap_insert(&all_ofprotos, &ofproto->hmap_node, | |
507 | hash_string(ofproto->name, 0)); | |
508 | ofproto->datapath_id = 0; | |
8402c74b | 509 | ofproto->forward_bpdu = false; |
abe529af | 510 | ofproto->fallback_dpid = pick_fallback_dpid(); |
061bfea4 BP |
511 | ofproto->mfr_desc = NULL; |
512 | ofproto->hw_desc = NULL; | |
513 | ofproto->sw_desc = NULL; | |
514 | ofproto->serial_desc = NULL; | |
515 | ofproto->dp_desc = NULL; | |
ad99e2ed | 516 | ofproto->frag_handling = OFPUTIL_FRAG_NORMAL; |
abe529af | 517 | hmap_init(&ofproto->ports); |
fdcea803 | 518 | hmap_init(&ofproto->ofport_usage); |
abe529af | 519 | shash_init(&ofproto->port_by_name); |
e1b1d06a | 520 | simap_init(&ofproto->ofp_requests); |
430dbb14 | 521 | ofproto->max_ports = ofp_to_u16(OFPP_MAX); |
448c2fa8 | 522 | ofproto->eviction_group_timer = LLONG_MIN; |
6c1491fb BP |
523 | ofproto->tables = NULL; |
524 | ofproto->n_tables = 0; | |
44e0c35d | 525 | ofproto->tables_version = OVS_VERSION_MIN; |
98eaac36 | 526 | hindex_init(&ofproto->cookies); |
35f48b8b | 527 | hmap_init(&ofproto->learned_cookies); |
417e7e66 | 528 | ovs_list_init(&ofproto->expirable); |
abe529af | 529 | ofproto->connmgr = connmgr_create(ofproto, datapath_name, datapath_name); |
7478b5a2 | 530 | ofproto->min_mtu = INT_MAX; |
db88b35c | 531 | cmap_init(&ofproto->groups); |
abe7b10f | 532 | ovs_mutex_unlock(&ofproto_mutex); |
0ae01c64 | 533 | ofproto->ogf.types = 0xf; |
7cb279c2 SH |
534 | ofproto->ogf.capabilities = OFPGFC_CHAINING | OFPGFC_SELECT_LIVENESS | |
535 | OFPGFC_SELECT_WEIGHT; | |
08d1e234 BP |
536 | for (i = 0; i < 4; i++) { |
537 | ofproto->ogf.max_groups[i] = OFPG_MAX; | |
538 | ofproto->ogf.ofpacts[i] = (UINT64_C(1) << N_OFPACTS) - 1; | |
539 | } | |
8d8ab6c2 | 540 | ovsrcu_set(&ofproto->metadata_tab, tun_metadata_alloc(NULL)); |
abe529af | 541 | |
04f48a68 YHW |
542 | ovs_mutex_init(&ofproto->vl_mff_map.mutex); |
543 | cmap_init(&ofproto->vl_mff_map.cmap); | |
544 | ||
0f5f95a9 | 545 | error = ofproto->ofproto_class->construct(ofproto); |
19a87e36 | 546 | if (error) { |
abe529af | 547 | VLOG_ERR("failed to open datapath %s: %s", |
10a89ef0 | 548 | datapath_name, ovs_strerror(error)); |
25010c68 | 549 | ovs_mutex_lock(&ofproto_mutex); |
58f19539 | 550 | connmgr_destroy(ofproto->connmgr); |
25010c68 JR |
551 | ofproto->connmgr = NULL; |
552 | ovs_mutex_unlock(&ofproto_mutex); | |
abe529af | 553 | ofproto_destroy__(ofproto); |
19a87e36 BP |
554 | return error; |
555 | } | |
073e2a6f | 556 | |
c2f0373a | 557 | /* Check that hidden tables, if any, are at the end. */ |
cb22974d | 558 | ovs_assert(ofproto->n_tables); |
c2f0373a BP |
559 | for (i = 0; i + 1 < ofproto->n_tables; i++) { |
560 | enum oftable_flags flags = ofproto->tables[i].flags; | |
561 | enum oftable_flags next_flags = ofproto->tables[i + 1].flags; | |
562 | ||
cb22974d | 563 | ovs_assert(!(flags & OFTABLE_HIDDEN) || next_flags & OFTABLE_HIDDEN); |
c2f0373a | 564 | } |
19a87e36 | 565 | |
abe529af | 566 | ofproto->datapath_id = pick_datapath_id(ofproto); |
abe529af | 567 | init_ports(ofproto); |
7aa697dd | 568 | |
9cae45dc JR |
569 | /* Initialize meters table. */ |
570 | if (ofproto->ofproto_class->meter_get_features) { | |
571 | ofproto->ofproto_class->meter_get_features(ofproto, | |
572 | &ofproto->meter_features); | |
573 | } else { | |
574 | memset(&ofproto->meter_features, 0, sizeof ofproto->meter_features); | |
575 | } | |
ba8cff36 | 576 | hmap_init(&ofproto->meters); |
9e638f22 AZ |
577 | ofproto->slowpath_meter_id = UINT32_MAX; |
578 | ofproto->controller_meter_id = UINT32_MAX; | |
9cae45dc | 579 | |
621b8064 | 580 | /* Set the initial tables version. */ |
39c94593 | 581 | ofproto_bump_tables_version(ofproto); |
621b8064 | 582 | |
abe529af | 583 | *ofprotop = ofproto; |
064af421 BP |
584 | return 0; |
585 | } | |
586 | ||
91858960 BP |
587 | /* Must be called (only) by an ofproto implementation in its constructor |
588 | * function. See the large comment on 'construct' in struct ofproto_class for | |
589 | * details. */ | |
0f5f95a9 BP |
590 | void |
591 | ofproto_init_tables(struct ofproto *ofproto, int n_tables) | |
592 | { | |
593 | struct oftable *table; | |
594 | ||
cb22974d BP |
595 | ovs_assert(!ofproto->n_tables); |
596 | ovs_assert(n_tables >= 1 && n_tables <= 255); | |
0f5f95a9 BP |
597 | |
598 | ofproto->n_tables = n_tables; | |
599 | ofproto->tables = xmalloc(n_tables * sizeof *ofproto->tables); | |
600 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { | |
601 | oftable_init(table); | |
602 | } | |
603 | } | |
604 | ||
91858960 BP |
605 | /* To be optionally called (only) by an ofproto implementation in its |
606 | * constructor function. See the large comment on 'construct' in struct | |
607 | * ofproto_class for details. | |
608 | * | |
609 | * Sets the maximum number of ports to 'max_ports'. The ofproto generic layer | |
610 | * will then ensure that actions passed into the ofproto implementation will | |
611 | * not refer to OpenFlow ports numbered 'max_ports' or higher. If this | |
612 | * function is not called, there will be no such restriction. | |
613 | * | |
614 | * Reserved ports numbered OFPP_MAX and higher are special and not subject to | |
615 | * the 'max_ports' restriction. */ | |
616 | void | |
430dbb14 | 617 | ofproto_init_max_ports(struct ofproto *ofproto, uint16_t max_ports) |
91858960 | 618 | { |
430dbb14 | 619 | ovs_assert(max_ports <= ofp_to_u16(OFPP_MAX)); |
91858960 BP |
620 | ofproto->max_ports = max_ports; |
621 | } | |
622 | ||
e825ace2 BP |
623 | uint64_t |
624 | ofproto_get_datapath_id(const struct ofproto *ofproto) | |
625 | { | |
626 | return ofproto->datapath_id; | |
627 | } | |
628 | ||
064af421 BP |
629 | void |
630 | ofproto_set_datapath_id(struct ofproto *p, uint64_t datapath_id) | |
631 | { | |
632 | uint64_t old_dpid = p->datapath_id; | |
fa60c019 | 633 | p->datapath_id = datapath_id ? datapath_id : pick_datapath_id(p); |
064af421 | 634 | if (p->datapath_id != old_dpid) { |
76ce9432 BP |
635 | /* Force all active connections to reconnect, since there is no way to |
636 | * notify a controller that the datapath ID has changed. */ | |
fa05809b | 637 | ofproto_reconnect_controllers(p); |
064af421 BP |
638 | } |
639 | } | |
640 | ||
76ce9432 BP |
641 | void |
642 | ofproto_set_controllers(struct ofproto *p, | |
643 | const struct ofproto_controller *controllers, | |
1d9ffc17 | 644 | size_t n_controllers, uint32_t allowed_versions) |
76ce9432 | 645 | { |
1d9ffc17 SH |
646 | connmgr_set_controllers(p->connmgr, controllers, n_controllers, |
647 | allowed_versions); | |
064af421 BP |
648 | } |
649 | ||
31681a5d JP |
650 | void |
651 | ofproto_set_fail_mode(struct ofproto *p, enum ofproto_fail_mode fail_mode) | |
652 | { | |
19a87e36 | 653 | connmgr_set_fail_mode(p->connmgr, fail_mode); |
31681a5d JP |
654 | } |
655 | ||
fa05809b BP |
656 | /* Drops the connections between 'ofproto' and all of its controllers, forcing |
657 | * them to reconnect. */ | |
658 | void | |
659 | ofproto_reconnect_controllers(struct ofproto *ofproto) | |
660 | { | |
19a87e36 | 661 | connmgr_reconnect(ofproto->connmgr); |
917e50e1 BP |
662 | } |
663 | ||
664 | /* Sets the 'n' TCP port addresses in 'extras' as ones to which 'ofproto''s | |
665 | * in-band control should guarantee access, in the same way that in-band | |
666 | * control guarantees access to OpenFlow controllers. */ | |
667 | void | |
668 | ofproto_set_extra_in_band_remotes(struct ofproto *ofproto, | |
669 | const struct sockaddr_in *extras, size_t n) | |
670 | { | |
19a87e36 | 671 | connmgr_set_extra_in_band_remotes(ofproto->connmgr, extras, n); |
917e50e1 BP |
672 | } |
673 | ||
b1da6250 BP |
674 | /* Sets the OpenFlow queue used by flows set up by in-band control on |
675 | * 'ofproto' to 'queue_id'. If 'queue_id' is negative, then in-band control | |
676 | * flows will use the default queue. */ | |
677 | void | |
678 | ofproto_set_in_band_queue(struct ofproto *ofproto, int queue_id) | |
679 | { | |
19a87e36 | 680 | connmgr_set_in_band_queue(ofproto->connmgr, queue_id); |
b1da6250 BP |
681 | } |
682 | ||
7fdd2082 FL |
683 | /* Sets the bundle max idle timeout */ |
684 | void | |
685 | ofproto_set_bundle_idle_timeout(unsigned timeout) | |
686 | { | |
687 | connmgr_set_bundle_idle_timeout(timeout); | |
688 | } | |
689 | ||
084f5290 SH |
690 | /* Sets the number of flows at which eviction from the kernel flow table |
691 | * will occur. */ | |
692 | void | |
e79a6c83 | 693 | ofproto_set_flow_limit(unsigned limit) |
084f5290 | 694 | { |
e79a6c83 | 695 | ofproto_flow_limit = limit; |
084f5290 SH |
696 | } |
697 | ||
72310b04 JS |
698 | /* Sets the maximum idle time for flows in the datapath before they are |
699 | * expired. */ | |
700 | void | |
701 | ofproto_set_max_idle(unsigned max_idle) | |
702 | { | |
703 | ofproto_max_idle = max_idle; | |
704 | } | |
705 | ||
b53055f4 | 706 | /* If forward_bpdu is true, the NORMAL action will forward frames with |
8402c74b SS |
707 | * reserved (e.g. STP) destination Ethernet addresses. if forward_bpdu is false, |
708 | * the NORMAL action will drop these frames. */ | |
709 | void | |
710 | ofproto_set_forward_bpdu(struct ofproto *ofproto, bool forward_bpdu) | |
711 | { | |
712 | bool old_val = ofproto->forward_bpdu; | |
713 | ofproto->forward_bpdu = forward_bpdu; | |
714 | if (old_val != ofproto->forward_bpdu) { | |
715 | if (ofproto->ofproto_class->forward_bpdu_changed) { | |
716 | ofproto->ofproto_class->forward_bpdu_changed(ofproto); | |
717 | } | |
b53055f4 | 718 | } |
8402c74b SS |
719 | } |
720 | ||
e764773c | 721 | /* Sets the MAC aging timeout for the OFPP_NORMAL action on 'ofproto' to |
c4069512 BP |
722 | * 'idle_time', in seconds, and the maximum number of MAC table entries to |
723 | * 'max_entries'. */ | |
e764773c | 724 | void |
c4069512 BP |
725 | ofproto_set_mac_table_config(struct ofproto *ofproto, unsigned idle_time, |
726 | size_t max_entries) | |
e764773c | 727 | { |
c4069512 BP |
728 | if (ofproto->ofproto_class->set_mac_table_config) { |
729 | ofproto->ofproto_class->set_mac_table_config(ofproto, idle_time, | |
730 | max_entries); | |
e764773c BP |
731 | } |
732 | } | |
733 | ||
7c38d0a5 FL |
734 | /* Multicast snooping configuration. */ |
735 | ||
736 | /* Configures multicast snooping on 'ofproto' using the settings | |
737 | * defined in 's'. If 's' is NULL, disables multicast snooping. | |
738 | * | |
739 | * Returns 0 if successful, otherwise a positive errno value. */ | |
740 | int | |
741 | ofproto_set_mcast_snooping(struct ofproto *ofproto, | |
742 | const struct ofproto_mcast_snooping_settings *s) | |
743 | { | |
744 | return (ofproto->ofproto_class->set_mcast_snooping | |
745 | ? ofproto->ofproto_class->set_mcast_snooping(ofproto, s) | |
746 | : EOPNOTSUPP); | |
747 | } | |
748 | ||
8e04a33f | 749 | /* Configures multicast snooping flood settings on 'ofp_port' of 'ofproto'. |
7c38d0a5 FL |
750 | * |
751 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
752 | int | |
8e04a33f FL |
753 | ofproto_port_set_mcast_snooping(struct ofproto *ofproto, void *aux, |
754 | const struct ofproto_mcast_snooping_port_settings *s) | |
7c38d0a5 FL |
755 | { |
756 | return (ofproto->ofproto_class->set_mcast_snooping_port | |
8e04a33f | 757 | ? ofproto->ofproto_class->set_mcast_snooping_port(ofproto, aux, s) |
7c38d0a5 FL |
758 | : EOPNOTSUPP); |
759 | } | |
760 | ||
f2eee189 | 761 | void |
d4f6865c | 762 | ofproto_type_set_config(const char *datapath_type, const struct smap *cfg) |
f2eee189 | 763 | { |
d4f6865c DDP |
764 | const struct ofproto_class *class; |
765 | ||
766 | datapath_type = ofproto_normalize_type(datapath_type); | |
767 | class = ofproto_class_find__(datapath_type); | |
768 | ||
769 | if (class->type_set_config) { | |
770 | class->type_set_config(datapath_type, cfg); | |
771 | } | |
f2eee189 AW |
772 | } |
773 | ||
448a4b2f | 774 | void |
30ea0da7 | 775 | ofproto_set_threads(int n_handlers_, int n_revalidators_) |
448a4b2f | 776 | { |
e79a6c83 EJ |
777 | int threads = MAX(count_cpu_cores(), 2); |
778 | ||
30ea0da7 GS |
779 | n_revalidators = MAX(n_revalidators_, 0); |
780 | n_handlers = MAX(n_handlers_, 0); | |
e79a6c83 EJ |
781 | |
782 | if (!n_revalidators) { | |
783 | n_revalidators = n_handlers | |
784 | ? MAX(threads - (int) n_handlers, 1) | |
785 | : threads / 4 + 1; | |
786 | } | |
787 | ||
788 | if (!n_handlers) { | |
789 | n_handlers = MAX(threads - (int) n_revalidators, 1); | |
790 | } | |
448a4b2f AW |
791 | } |
792 | ||
8b6ff729 BP |
793 | void |
794 | ofproto_set_dp_desc(struct ofproto *p, const char *dp_desc) | |
795 | { | |
796 | free(p->dp_desc); | |
2225c0b9 | 797 | p->dp_desc = nullable_xstrdup(dp_desc); |
8b6ff729 BP |
798 | } |
799 | ||
064af421 | 800 | int |
81e2083f | 801 | ofproto_set_snoops(struct ofproto *ofproto, const struct sset *snoops) |
064af421 | 802 | { |
19a87e36 | 803 | return connmgr_set_snoops(ofproto->connmgr, snoops); |
064af421 BP |
804 | } |
805 | ||
806 | int | |
0193b2af JG |
807 | ofproto_set_netflow(struct ofproto *ofproto, |
808 | const struct netflow_options *nf_options) | |
064af421 | 809 | { |
abe529af BP |
810 | if (nf_options && sset_is_empty(&nf_options->collectors)) { |
811 | nf_options = NULL; | |
812 | } | |
813 | ||
814 | if (ofproto->ofproto_class->set_netflow) { | |
815 | return ofproto->ofproto_class->set_netflow(ofproto, nf_options); | |
064af421 | 816 | } else { |
abe529af | 817 | return nf_options ? EOPNOTSUPP : 0; |
064af421 BP |
818 | } |
819 | } | |
820 | ||
abe529af | 821 | int |
72b06300 BP |
822 | ofproto_set_sflow(struct ofproto *ofproto, |
823 | const struct ofproto_sflow_options *oso) | |
824 | { | |
abe529af BP |
825 | if (oso && sset_is_empty(&oso->targets)) { |
826 | oso = NULL; | |
827 | } | |
72b06300 | 828 | |
abe529af BP |
829 | if (ofproto->ofproto_class->set_sflow) { |
830 | return ofproto->ofproto_class->set_sflow(ofproto, oso); | |
72b06300 | 831 | } else { |
abe529af | 832 | return oso ? EOPNOTSUPP : 0; |
72b06300 BP |
833 | } |
834 | } | |
29089a54 RL |
835 | |
836 | int | |
837 | ofproto_set_ipfix(struct ofproto *ofproto, | |
838 | const struct ofproto_ipfix_bridge_exporter_options *bo, | |
839 | const struct ofproto_ipfix_flow_exporter_options *fo, | |
840 | size_t n_fo) | |
841 | { | |
842 | if (ofproto->ofproto_class->set_ipfix) { | |
843 | return ofproto->ofproto_class->set_ipfix(ofproto, bo, fo, n_fo); | |
844 | } else { | |
845 | return (bo || fo) ? EOPNOTSUPP : 0; | |
846 | } | |
847 | } | |
40358701 | 848 | |
fb8f22c1 BY |
849 | static int |
850 | ofproto_get_ipfix_stats(struct ofproto *ofproto, | |
851 | bool bridge_ipfix, | |
852 | struct ovs_list *replies) | |
853 | { | |
854 | int error; | |
855 | ||
856 | if (ofproto->ofproto_class->get_ipfix_stats) { | |
857 | error = ofproto->ofproto_class->get_ipfix_stats(ofproto, | |
858 | bridge_ipfix, | |
859 | replies); | |
860 | } else { | |
861 | error = EOPNOTSUPP; | |
862 | } | |
863 | ||
864 | return error; | |
865 | } | |
866 | ||
867 | static enum ofperr | |
868 | handle_ipfix_bridge_stats_request(struct ofconn *ofconn, | |
869 | const struct ofp_header *request) | |
870 | { | |
871 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
872 | struct ovs_list replies; | |
873 | enum ofperr error; | |
874 | ||
875 | ofpmp_init(&replies, request); | |
876 | error = ofproto_get_ipfix_stats(ofproto, true, &replies); | |
877 | ||
878 | if (!error) { | |
879 | ofconn_send_replies(ofconn, &replies); | |
880 | } else { | |
881 | ofpbuf_list_delete(&replies); | |
882 | } | |
883 | ||
884 | return error; | |
885 | } | |
886 | ||
887 | static enum ofperr | |
888 | handle_ipfix_flow_stats_request(struct ofconn *ofconn, | |
889 | const struct ofp_header *request) | |
890 | { | |
891 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
892 | struct ovs_list replies; | |
893 | enum ofperr error; | |
894 | ||
895 | ofpmp_init(&replies, request); | |
896 | error = ofproto_get_ipfix_stats(ofproto, false, &replies); | |
897 | ||
898 | if (!error) { | |
899 | ofconn_send_replies(ofconn, &replies); | |
900 | } else { | |
901 | ofpbuf_list_delete(&replies); | |
902 | } | |
903 | ||
904 | return error; | |
905 | } | |
906 | ||
2a7c4805 JP |
907 | static enum ofperr |
908 | handle_nxt_ct_flush_zone(struct ofconn *ofconn, const struct ofp_header *oh) | |
909 | { | |
910 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
911 | const struct nx_zone_id *nzi = ofpmsg_body(oh); | |
912 | ||
913 | if (!is_all_zeros(nzi->zero, sizeof nzi->zero)) { | |
914 | return OFPERR_NXBRC_MUST_BE_ZERO; | |
915 | } | |
916 | ||
917 | uint16_t zone = ntohs(nzi->zone_id); | |
918 | if (ofproto->ofproto_class->ct_flush) { | |
919 | ofproto->ofproto_class->ct_flush(ofproto, &zone); | |
920 | } else { | |
921 | return EOPNOTSUPP; | |
922 | } | |
923 | ||
924 | return 0; | |
925 | } | |
926 | ||
40358701 GS |
927 | void |
928 | ofproto_set_flow_restore_wait(bool flow_restore_wait_db) | |
929 | { | |
930 | flow_restore_wait = flow_restore_wait_db; | |
931 | } | |
932 | ||
933 | bool | |
934 | ofproto_get_flow_restore_wait(void) | |
935 | { | |
936 | return flow_restore_wait; | |
937 | } | |
938 | ||
e7934396 | 939 | \f |
21f7563c JP |
940 | /* Spanning Tree Protocol (STP) configuration. */ |
941 | ||
942 | /* Configures STP on 'ofproto' using the settings defined in 's'. If | |
943 | * 's' is NULL, disables STP. | |
944 | * | |
945 | * Returns 0 if successful, otherwise a positive errno value. */ | |
946 | int | |
947 | ofproto_set_stp(struct ofproto *ofproto, | |
948 | const struct ofproto_stp_settings *s) | |
949 | { | |
950 | return (ofproto->ofproto_class->set_stp | |
951 | ? ofproto->ofproto_class->set_stp(ofproto, s) | |
952 | : EOPNOTSUPP); | |
953 | } | |
954 | ||
955 | /* Retrieves STP status of 'ofproto' and stores it in 's'. If the | |
956 | * 'enabled' member of 's' is false, then the other members are not | |
957 | * meaningful. | |
958 | * | |
959 | * Returns 0 if successful, otherwise a positive errno value. */ | |
960 | int | |
961 | ofproto_get_stp_status(struct ofproto *ofproto, | |
962 | struct ofproto_stp_status *s) | |
963 | { | |
964 | return (ofproto->ofproto_class->get_stp_status | |
965 | ? ofproto->ofproto_class->get_stp_status(ofproto, s) | |
966 | : EOPNOTSUPP); | |
967 | } | |
968 | ||
969 | /* Configures STP on 'ofp_port' of 'ofproto' using the settings defined | |
970 | * in 's'. The caller is responsible for assigning STP port numbers | |
971 | * (using the 'port_num' member in the range of 1 through 255, inclusive) | |
972 | * and ensuring there are no duplicates. If the 's' is NULL, then STP | |
973 | * is disabled on the port. | |
974 | * | |
975 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
976 | int | |
4e022ec0 | 977 | ofproto_port_set_stp(struct ofproto *ofproto, ofp_port_t ofp_port, |
21f7563c JP |
978 | const struct ofproto_port_stp_settings *s) |
979 | { | |
980 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
981 | if (!ofport) { | |
94783c7c | 982 | VLOG_WARN("%s: cannot configure STP on nonexistent port %"PRIu32, |
21f7563c JP |
983 | ofproto->name, ofp_port); |
984 | return ENODEV; | |
985 | } | |
986 | ||
987 | return (ofproto->ofproto_class->set_stp_port | |
988 | ? ofproto->ofproto_class->set_stp_port(ofport, s) | |
989 | : EOPNOTSUPP); | |
990 | } | |
991 | ||
992 | /* Retrieves STP port status of 'ofp_port' on 'ofproto' and stores it in | |
993 | * 's'. If the 'enabled' member in 's' is false, then the other members | |
994 | * are not meaningful. | |
995 | * | |
996 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
997 | int | |
4e022ec0 | 998 | ofproto_port_get_stp_status(struct ofproto *ofproto, ofp_port_t ofp_port, |
21f7563c JP |
999 | struct ofproto_port_stp_status *s) |
1000 | { | |
1001 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1002 | if (!ofport) { | |
b0a5c43b | 1003 | VLOG_WARN_RL(&rl, "%s: cannot get STP status on nonexistent " |
94783c7c | 1004 | "port %"PRIu32, ofproto->name, ofp_port); |
21f7563c JP |
1005 | return ENODEV; |
1006 | } | |
1007 | ||
1008 | return (ofproto->ofproto_class->get_stp_port_status | |
1009 | ? ofproto->ofproto_class->get_stp_port_status(ofport, s) | |
1010 | : EOPNOTSUPP); | |
1011 | } | |
fd28ce3a JS |
1012 | |
1013 | /* Retrieves STP port statistics of 'ofp_port' on 'ofproto' and stores it in | |
1014 | * 's'. If the 'enabled' member in 's' is false, then the other members | |
1015 | * are not meaningful. | |
1016 | * | |
1017 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
1018 | int | |
1019 | ofproto_port_get_stp_stats(struct ofproto *ofproto, ofp_port_t ofp_port, | |
1020 | struct ofproto_port_stp_stats *s) | |
1021 | { | |
1022 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1023 | if (!ofport) { | |
1024 | VLOG_WARN_RL(&rl, "%s: cannot get STP stats on nonexistent " | |
94783c7c | 1025 | "port %"PRIu32, ofproto->name, ofp_port); |
fd28ce3a JS |
1026 | return ENODEV; |
1027 | } | |
1028 | ||
1029 | return (ofproto->ofproto_class->get_stp_port_stats | |
1030 | ? ofproto->ofproto_class->get_stp_port_stats(ofport, s) | |
1031 | : EOPNOTSUPP); | |
1032 | } | |
9efd308e DV |
1033 | |
1034 | /* Rapid Spanning Tree Protocol (RSTP) configuration. */ | |
1035 | ||
1036 | /* Configures RSTP on 'ofproto' using the settings defined in 's'. If | |
1037 | * 's' is NULL, disables RSTP. | |
1038 | * | |
1039 | * Returns 0 if successful, otherwise a positive errno value. */ | |
1040 | int | |
1041 | ofproto_set_rstp(struct ofproto *ofproto, | |
1042 | const struct ofproto_rstp_settings *s) | |
1043 | { | |
1044 | if (!ofproto->ofproto_class->set_rstp) { | |
1045 | return EOPNOTSUPP; | |
1046 | } | |
1047 | ofproto->ofproto_class->set_rstp(ofproto, s); | |
1048 | return 0; | |
1049 | } | |
1050 | ||
1051 | /* Retrieves RSTP status of 'ofproto' and stores it in 's'. If the | |
1052 | * 'enabled' member of 's' is false, then the other members are not | |
1053 | * meaningful. | |
1054 | * | |
1055 | * Returns 0 if successful, otherwise a positive errno value. */ | |
1056 | int | |
1057 | ofproto_get_rstp_status(struct ofproto *ofproto, | |
1058 | struct ofproto_rstp_status *s) | |
1059 | { | |
1060 | if (!ofproto->ofproto_class->get_rstp_status) { | |
1061 | return EOPNOTSUPP; | |
1062 | } | |
1063 | ofproto->ofproto_class->get_rstp_status(ofproto, s); | |
1064 | return 0; | |
1065 | } | |
1066 | ||
1067 | /* Configures RSTP on 'ofp_port' of 'ofproto' using the settings defined | |
1068 | * in 's'. The caller is responsible for assigning RSTP port numbers | |
1069 | * (using the 'port_num' member in the range of 1 through 255, inclusive) | |
1070 | * and ensuring there are no duplicates. If the 's' is NULL, then RSTP | |
1071 | * is disabled on the port. | |
1072 | * | |
1073 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
1074 | int | |
1075 | ofproto_port_set_rstp(struct ofproto *ofproto, ofp_port_t ofp_port, | |
1076 | const struct ofproto_port_rstp_settings *s) | |
1077 | { | |
1078 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1079 | if (!ofport) { | |
94783c7c | 1080 | VLOG_WARN("%s: cannot configure RSTP on nonexistent port %"PRIu32, |
9efd308e DV |
1081 | ofproto->name, ofp_port); |
1082 | return ENODEV; | |
1083 | } | |
1084 | ||
1085 | if (!ofproto->ofproto_class->set_rstp_port) { | |
1086 | return EOPNOTSUPP; | |
1087 | } | |
1088 | ofproto->ofproto_class->set_rstp_port(ofport, s); | |
1089 | return 0; | |
1090 | } | |
1091 | ||
1092 | /* Retrieves RSTP port status of 'ofp_port' on 'ofproto' and stores it in | |
1093 | * 's'. If the 'enabled' member in 's' is false, then the other members | |
1094 | * are not meaningful. | |
1095 | * | |
1096 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
1097 | int | |
1098 | ofproto_port_get_rstp_status(struct ofproto *ofproto, ofp_port_t ofp_port, | |
1099 | struct ofproto_port_rstp_status *s) | |
1100 | { | |
1101 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1102 | if (!ofport) { | |
1103 | VLOG_WARN_RL(&rl, "%s: cannot get RSTP status on nonexistent " | |
94783c7c | 1104 | "port %"PRIu32, ofproto->name, ofp_port); |
9efd308e DV |
1105 | return ENODEV; |
1106 | } | |
1107 | ||
1108 | if (!ofproto->ofproto_class->get_rstp_port_status) { | |
1109 | return EOPNOTSUPP; | |
1110 | } | |
1111 | ofproto->ofproto_class->get_rstp_port_status(ofport, s); | |
1112 | return 0; | |
1113 | } | |
21f7563c | 1114 | \f |
8b36f51e EJ |
1115 | /* Queue DSCP configuration. */ |
1116 | ||
1117 | /* Registers meta-data associated with the 'n_qdscp' Qualities of Service | |
1118 | * 'queues' attached to 'ofport'. This data is not intended to be sufficient | |
1119 | * to implement QoS. Instead, it is used to implement features which require | |
1120 | * knowledge of what queues exist on a port, and some basic information about | |
1121 | * them. | |
1122 | * | |
1123 | * Returns 0 if successful, otherwise a positive errno value. */ | |
1124 | int | |
4e022ec0 | 1125 | ofproto_port_set_queues(struct ofproto *ofproto, ofp_port_t ofp_port, |
8b36f51e EJ |
1126 | const struct ofproto_port_queue *queues, |
1127 | size_t n_queues) | |
1128 | { | |
1129 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1130 | ||
1131 | if (!ofport) { | |
94783c7c | 1132 | VLOG_WARN("%s: cannot set queues on nonexistent port %"PRIu32, |
8b36f51e EJ |
1133 | ofproto->name, ofp_port); |
1134 | return ENODEV; | |
1135 | } | |
1136 | ||
1137 | return (ofproto->ofproto_class->set_queues | |
1138 | ? ofproto->ofproto_class->set_queues(ofport, queues, n_queues) | |
1139 | : EOPNOTSUPP); | |
1140 | } | |
1141 | \f | |
0477baa9 DF |
1142 | /* LLDP configuration. */ |
1143 | void | |
1144 | ofproto_port_set_lldp(struct ofproto *ofproto, | |
1145 | ofp_port_t ofp_port, | |
1146 | const struct smap *cfg) | |
1147 | { | |
1148 | struct ofport *ofport; | |
1149 | int error; | |
1150 | ||
1151 | ofport = ofproto_get_port(ofproto, ofp_port); | |
1152 | if (!ofport) { | |
94783c7c | 1153 | VLOG_WARN("%s: cannot configure LLDP on nonexistent port %"PRIu32, |
0477baa9 DF |
1154 | ofproto->name, ofp_port); |
1155 | return; | |
1156 | } | |
1157 | error = (ofproto->ofproto_class->set_lldp | |
1158 | ? ofproto->ofproto_class->set_lldp(ofport, cfg) | |
1159 | : EOPNOTSUPP); | |
1160 | if (error) { | |
94783c7c | 1161 | VLOG_WARN("%s: lldp configuration on port %"PRIu32" (%s) failed (%s)", |
0477baa9 DF |
1162 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), |
1163 | ovs_strerror(error)); | |
1164 | } | |
1165 | } | |
1166 | ||
1167 | int | |
1168 | ofproto_set_aa(struct ofproto *ofproto, void *aux OVS_UNUSED, | |
1169 | const struct aa_settings *s) | |
1170 | { | |
1171 | if (!ofproto->ofproto_class->set_aa) { | |
1172 | return EOPNOTSUPP; | |
1173 | } | |
1174 | ofproto->ofproto_class->set_aa(ofproto, s); | |
1175 | return 0; | |
1176 | } | |
1177 | ||
1178 | int | |
1179 | ofproto_aa_mapping_register(struct ofproto *ofproto, void *aux, | |
1180 | const struct aa_mapping_settings *s) | |
1181 | { | |
1182 | if (!ofproto->ofproto_class->aa_mapping_set) { | |
1183 | return EOPNOTSUPP; | |
1184 | } | |
1185 | ofproto->ofproto_class->aa_mapping_set(ofproto, aux, s); | |
1186 | return 0; | |
1187 | } | |
1188 | ||
1189 | int | |
1190 | ofproto_aa_mapping_unregister(struct ofproto *ofproto, void *aux) | |
1191 | { | |
1192 | if (!ofproto->ofproto_class->aa_mapping_unset) { | |
1193 | return EOPNOTSUPP; | |
1194 | } | |
1195 | ofproto->ofproto_class->aa_mapping_unset(ofproto, aux); | |
1196 | return 0; | |
1197 | } | |
1198 | ||
1199 | int | |
1200 | ofproto_aa_vlan_get_queued(struct ofproto *ofproto, | |
1201 | struct ovs_list *list) | |
1202 | { | |
1203 | if (!ofproto->ofproto_class->aa_vlan_get_queued) { | |
1204 | return EOPNOTSUPP; | |
1205 | } | |
1206 | ofproto->ofproto_class->aa_vlan_get_queued(ofproto, list); | |
1207 | return 0; | |
1208 | } | |
1209 | ||
1210 | unsigned int | |
1211 | ofproto_aa_vlan_get_queue_size(struct ofproto *ofproto) | |
1212 | { | |
1213 | if (!ofproto->ofproto_class->aa_vlan_get_queue_size) { | |
1214 | return EOPNOTSUPP; | |
1215 | } | |
1216 | return ofproto->ofproto_class->aa_vlan_get_queue_size(ofproto); | |
1217 | } | |
1218 | ||
e7934396 BP |
1219 | /* Connectivity Fault Management configuration. */ |
1220 | ||
892815f5 | 1221 | /* Clears the CFM configuration from 'ofp_port' on 'ofproto'. */ |
e7934396 | 1222 | void |
4e022ec0 | 1223 | ofproto_port_clear_cfm(struct ofproto *ofproto, ofp_port_t ofp_port) |
e7934396 | 1224 | { |
abe529af BP |
1225 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1226 | if (ofport && ofproto->ofproto_class->set_cfm) { | |
a5610457 | 1227 | ofproto->ofproto_class->set_cfm(ofport, NULL); |
e7934396 BP |
1228 | } |
1229 | } | |
72b06300 | 1230 | |
892815f5 | 1231 | /* Configures connectivity fault management on 'ofp_port' in 'ofproto'. Takes |
93b8df38 EJ |
1232 | * basic configuration from the configuration members in 'cfm', and the remote |
1233 | * maintenance point ID from remote_mpid. Ignores the statistics members of | |
1234 | * 'cfm'. | |
e7934396 | 1235 | * |
892815f5 | 1236 | * This function has no effect if 'ofproto' does not have a port 'ofp_port'. */ |
e7934396 | 1237 | void |
4e022ec0 | 1238 | ofproto_port_set_cfm(struct ofproto *ofproto, ofp_port_t ofp_port, |
a5610457 | 1239 | const struct cfm_settings *s) |
e7934396 BP |
1240 | { |
1241 | struct ofport *ofport; | |
abe529af | 1242 | int error; |
e7934396 | 1243 | |
abe529af | 1244 | ofport = ofproto_get_port(ofproto, ofp_port); |
e7934396 | 1245 | if (!ofport) { |
94783c7c | 1246 | VLOG_WARN("%s: cannot configure CFM on nonexistent port %"PRIu32, |
892815f5 | 1247 | ofproto->name, ofp_port); |
e7934396 BP |
1248 | return; |
1249 | } | |
1250 | ||
93b8df38 EJ |
1251 | /* XXX: For configuration simplicity, we only support one remote_mpid |
1252 | * outside of the CFM module. It's not clear if this is the correct long | |
1253 | * term solution or not. */ | |
abe529af | 1254 | error = (ofproto->ofproto_class->set_cfm |
a5610457 | 1255 | ? ofproto->ofproto_class->set_cfm(ofport, s) |
abe529af BP |
1256 | : EOPNOTSUPP); |
1257 | if (error) { | |
94783c7c | 1258 | VLOG_WARN("%s: CFM configuration on port %"PRIu32" (%s) failed (%s)", |
abe529af | 1259 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), |
10a89ef0 | 1260 | ovs_strerror(error)); |
e7934396 | 1261 | } |
e7934396 | 1262 | } |
e7934396 | 1263 | |
ccc09689 EJ |
1264 | /* Configures BFD on 'ofp_port' in 'ofproto'. This function has no effect if |
1265 | * 'ofproto' does not have a port 'ofp_port'. */ | |
1266 | void | |
4e022ec0 | 1267 | ofproto_port_set_bfd(struct ofproto *ofproto, ofp_port_t ofp_port, |
ccc09689 EJ |
1268 | const struct smap *cfg) |
1269 | { | |
1270 | struct ofport *ofport; | |
1271 | int error; | |
1272 | ||
1273 | ofport = ofproto_get_port(ofproto, ofp_port); | |
1274 | if (!ofport) { | |
94783c7c | 1275 | VLOG_WARN("%s: cannot configure bfd on nonexistent port %"PRIu32, |
ccc09689 | 1276 | ofproto->name, ofp_port); |
e8999bdc | 1277 | return; |
ccc09689 EJ |
1278 | } |
1279 | ||
1280 | error = (ofproto->ofproto_class->set_bfd | |
1281 | ? ofproto->ofproto_class->set_bfd(ofport, cfg) | |
1282 | : EOPNOTSUPP); | |
1283 | if (error) { | |
94783c7c | 1284 | VLOG_WARN("%s: bfd configuration on port %"PRIu32" (%s) failed (%s)", |
ccc09689 | 1285 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), |
10a89ef0 | 1286 | ovs_strerror(error)); |
ccc09689 EJ |
1287 | } |
1288 | } | |
1289 | ||
8f5514fe AW |
1290 | /* Checks the status change of BFD on 'ofport'. |
1291 | * | |
1292 | * Returns true if 'ofproto_class' does not support 'bfd_status_changed'. */ | |
1293 | bool | |
1294 | ofproto_port_bfd_status_changed(struct ofproto *ofproto, ofp_port_t ofp_port) | |
1295 | { | |
1296 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1297 | return (ofport && ofproto->ofproto_class->bfd_status_changed | |
1298 | ? ofproto->ofproto_class->bfd_status_changed(ofport) | |
1299 | : true); | |
1300 | } | |
1301 | ||
88bf179a | 1302 | /* Populates 'status' with the status of BFD on 'ofport'. Returns 0 on |
8f5514fe AW |
1303 | * success. Returns a positive errno otherwise. Has no effect if 'ofp_port' |
1304 | * is not an OpenFlow port in 'ofproto'. | |
88bf179a AW |
1305 | * |
1306 | * The caller must provide and own '*status'. */ | |
ccc09689 | 1307 | int |
4e022ec0 | 1308 | ofproto_port_get_bfd_status(struct ofproto *ofproto, ofp_port_t ofp_port, |
ccc09689 EJ |
1309 | struct smap *status) |
1310 | { | |
1311 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1312 | return (ofport && ofproto->ofproto_class->get_bfd_status | |
1313 | ? ofproto->ofproto_class->get_bfd_status(ofport, status) | |
1314 | : EOPNOTSUPP); | |
1315 | } | |
1316 | ||
fa066f01 BP |
1317 | /* Checks the status of LACP negotiation for 'ofp_port' within ofproto. |
1318 | * Returns 1 if LACP partner information for 'ofp_port' is up-to-date, | |
1319 | * 0 if LACP partner information is not current (generally indicating a | |
1320 | * connectivity problem), or -1 if LACP is not enabled on 'ofp_port'. */ | |
1321 | int | |
4e022ec0 | 1322 | ofproto_port_is_lacp_current(struct ofproto *ofproto, ofp_port_t ofp_port) |
fa066f01 | 1323 | { |
abe529af BP |
1324 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1325 | return (ofport && ofproto->ofproto_class->port_is_lacp_current | |
1326 | ? ofproto->ofproto_class->port_is_lacp_current(ofport) | |
fa066f01 | 1327 | : -1); |
e7934396 | 1328 | } |
50b9699f NM |
1329 | |
1330 | int | |
1331 | ofproto_port_get_lacp_stats(const struct ofport *port, struct lacp_slave_stats *stats) | |
1332 | { | |
1333 | struct ofproto *ofproto = port->ofproto; | |
1334 | int error; | |
1335 | ||
1336 | if (ofproto->ofproto_class->port_get_lacp_stats) { | |
1337 | error = ofproto->ofproto_class->port_get_lacp_stats(port, stats); | |
1338 | } else { | |
1339 | error = EOPNOTSUPP; | |
1340 | } | |
1341 | ||
1342 | return error; | |
1343 | } | |
e7934396 | 1344 | \f |
fa066f01 | 1345 | /* Bundles. */ |
e7934396 | 1346 | |
abe529af BP |
1347 | /* Registers a "bundle" associated with client data pointer 'aux' in 'ofproto'. |
1348 | * A bundle is the same concept as a Port in OVSDB, that is, it consists of one | |
1349 | * or more "slave" devices (Interfaces, in OVSDB) along with a VLAN | |
1350 | * configuration plus, if there is more than one slave, a bonding | |
1351 | * configuration. | |
1352 | * | |
1353 | * If 'aux' is already registered then this function updates its configuration | |
1354 | * to 's'. Otherwise, this function registers a new bundle. | |
1355 | * | |
1356 | * Bundles only affect the NXAST_AUTOPATH action and output to the OFPP_NORMAL | |
1357 | * port. */ | |
1358 | int | |
1359 | ofproto_bundle_register(struct ofproto *ofproto, void *aux, | |
1360 | const struct ofproto_bundle_settings *s) | |
fa066f01 | 1361 | { |
abe529af BP |
1362 | return (ofproto->ofproto_class->bundle_set |
1363 | ? ofproto->ofproto_class->bundle_set(ofproto, aux, s) | |
1364 | : EOPNOTSUPP); | |
fa066f01 BP |
1365 | } |
1366 | ||
abe529af BP |
1367 | /* Unregisters the bundle registered on 'ofproto' with auxiliary data 'aux'. |
1368 | * If no such bundle has been registered, this has no effect. */ | |
1369 | int | |
1370 | ofproto_bundle_unregister(struct ofproto *ofproto, void *aux) | |
e7934396 | 1371 | { |
abe529af | 1372 | return ofproto_bundle_register(ofproto, aux, NULL); |
e7934396 | 1373 | } |
fa066f01 | 1374 | |
e7934396 | 1375 | \f |
abe529af BP |
1376 | /* Registers a mirror associated with client data pointer 'aux' in 'ofproto'. |
1377 | * If 'aux' is already registered then this function updates its configuration | |
c06bba01 | 1378 | * to 's'. Otherwise, this function registers a new mirror. */ |
abe529af BP |
1379 | int |
1380 | ofproto_mirror_register(struct ofproto *ofproto, void *aux, | |
1381 | const struct ofproto_mirror_settings *s) | |
064af421 | 1382 | { |
abe529af BP |
1383 | return (ofproto->ofproto_class->mirror_set |
1384 | ? ofproto->ofproto_class->mirror_set(ofproto, aux, s) | |
1385 | : EOPNOTSUPP); | |
064af421 BP |
1386 | } |
1387 | ||
abe529af BP |
1388 | /* Unregisters the mirror registered on 'ofproto' with auxiliary data 'aux'. |
1389 | * If no mirror has been registered, this has no effect. */ | |
1390 | int | |
1391 | ofproto_mirror_unregister(struct ofproto *ofproto, void *aux) | |
064af421 | 1392 | { |
abe529af | 1393 | return ofproto_mirror_register(ofproto, aux, NULL); |
064af421 BP |
1394 | } |
1395 | ||
9d24de3b JP |
1396 | /* Retrieves statistics from mirror associated with client data pointer |
1397 | * 'aux' in 'ofproto'. Stores packet and byte counts in 'packets' and | |
1398 | * 'bytes', respectively. If a particular counters is not supported, | |
0477baa9 DF |
1399 | * the appropriate argument is set to UINT64_MAX. |
1400 | */ | |
9d24de3b JP |
1401 | int |
1402 | ofproto_mirror_get_stats(struct ofproto *ofproto, void *aux, | |
1403 | uint64_t *packets, uint64_t *bytes) | |
1404 | { | |
1405 | if (!ofproto->ofproto_class->mirror_get_stats) { | |
1406 | *packets = *bytes = UINT64_MAX; | |
1407 | return EOPNOTSUPP; | |
1408 | } | |
1409 | ||
1410 | return ofproto->ofproto_class->mirror_get_stats(ofproto, aux, | |
1411 | packets, bytes); | |
1412 | } | |
1413 | ||
abe529af BP |
1414 | /* Configures the VLANs whose bits are set to 1 in 'flood_vlans' as VLANs on |
1415 | * which all packets are flooded, instead of using MAC learning. If | |
1416 | * 'flood_vlans' is NULL, then MAC learning applies to all VLANs. | |
1417 | * | |
1418 | * Flood VLANs affect only the treatment of packets output to the OFPP_NORMAL | |
1419 | * port. */ | |
1420 | int | |
1421 | ofproto_set_flood_vlans(struct ofproto *ofproto, unsigned long *flood_vlans) | |
abdfe474 | 1422 | { |
abe529af BP |
1423 | return (ofproto->ofproto_class->set_flood_vlans |
1424 | ? ofproto->ofproto_class->set_flood_vlans(ofproto, flood_vlans) | |
1425 | : EOPNOTSUPP); | |
abdfe474 JP |
1426 | } |
1427 | ||
abe529af BP |
1428 | /* Returns true if 'aux' is a registered bundle that is currently in use as the |
1429 | * output for a mirror. */ | |
1430 | bool | |
b4affc74 | 1431 | ofproto_is_mirror_output_bundle(const struct ofproto *ofproto, void *aux) |
abe529af BP |
1432 | { |
1433 | return (ofproto->ofproto_class->is_mirror_output_bundle | |
1434 | ? ofproto->ofproto_class->is_mirror_output_bundle(ofproto, aux) | |
1435 | : false); | |
1436 | } | |
1437 | \f | |
254750ce BP |
1438 | /* Configuration of OpenFlow tables. */ |
1439 | ||
1440 | /* Returns the number of OpenFlow tables in 'ofproto'. */ | |
1441 | int | |
1442 | ofproto_get_n_tables(const struct ofproto *ofproto) | |
1443 | { | |
1444 | return ofproto->n_tables; | |
1445 | } | |
1446 | ||
adcf00ba AZ |
1447 | /* Returns the number of Controller visible OpenFlow tables |
1448 | * in 'ofproto'. This number will exclude Hidden tables. | |
1449 | * This funtion's return value should be less or equal to that of | |
1450 | * ofproto_get_n_tables() . */ | |
1451 | uint8_t | |
1452 | ofproto_get_n_visible_tables(const struct ofproto *ofproto) | |
1453 | { | |
1454 | uint8_t n = ofproto->n_tables; | |
1455 | ||
1456 | /* Count only non-hidden tables in the number of tables. (Hidden tables, | |
1457 | * if present, are always at the end.) */ | |
1458 | while(n && (ofproto->tables[n - 1].flags & OFTABLE_HIDDEN)) { | |
1459 | n--; | |
1460 | } | |
1461 | ||
1462 | return n; | |
1463 | } | |
1464 | ||
254750ce BP |
1465 | /* Configures the OpenFlow table in 'ofproto' with id 'table_id' with the |
1466 | * settings from 's'. 'table_id' must be in the range 0 through the number of | |
1467 | * OpenFlow tables in 'ofproto' minus 1, inclusive. | |
1468 | * | |
1469 | * For read-only tables, only the name may be configured. */ | |
1470 | void | |
1471 | ofproto_configure_table(struct ofproto *ofproto, int table_id, | |
1472 | const struct ofproto_table_settings *s) | |
1473 | { | |
1474 | struct oftable *table; | |
1475 | ||
cb22974d | 1476 | ovs_assert(table_id >= 0 && table_id < ofproto->n_tables); |
254750ce BP |
1477 | table = &ofproto->tables[table_id]; |
1478 | ||
1479 | oftable_set_name(table, s->name); | |
1480 | ||
1481 | if (table->flags & OFTABLE_READONLY) { | |
1482 | return; | |
1483 | } | |
1484 | ||
f358a2cb JR |
1485 | if (classifier_set_prefix_fields(&table->cls, |
1486 | s->prefix_fields, s->n_prefix_fields)) { | |
1487 | /* XXX: Trigger revalidation. */ | |
1488 | } | |
834fe5cb BP |
1489 | |
1490 | ovs_mutex_lock(&ofproto_mutex); | |
82c22d34 BP |
1491 | unsigned int new_eviction = (s->enable_eviction |
1492 | ? table->eviction | EVICTION_CLIENT | |
1493 | : table->eviction & ~EVICTION_CLIENT); | |
1494 | oftable_configure_eviction(table, new_eviction, s->groups, s->n_groups); | |
7394b8fb | 1495 | table->max_flows = s->max_flows; |
6787a49f | 1496 | evict_rules_from_table(table); |
834fe5cb | 1497 | ovs_mutex_unlock(&ofproto_mutex); |
254750ce BP |
1498 | } |
1499 | \f | |
81e2083f BP |
1500 | bool |
1501 | ofproto_has_snoops(const struct ofproto *ofproto) | |
1502 | { | |
1503 | return connmgr_has_snoops(ofproto->connmgr); | |
1504 | } | |
1505 | ||
064af421 | 1506 | void |
81e2083f | 1507 | ofproto_get_snoops(const struct ofproto *ofproto, struct sset *snoops) |
064af421 | 1508 | { |
19a87e36 | 1509 | connmgr_get_snoops(ofproto->connmgr, snoops); |
064af421 BP |
1510 | } |
1511 | ||
a73fcd71 | 1512 | /* Deletes 'rule' from 'ofproto'. |
8037acb4 | 1513 | * |
b74cb5d8 BP |
1514 | * Within an ofproto implementation, this function allows an ofproto |
1515 | * implementation to destroy any rules that remain when its ->destruct() | |
1516 | * function is called. This function is not suitable for use elsewhere in an | |
1517 | * ofproto implementation. | |
1518 | * | |
b74cb5d8 | 1519 | * This function implements steps 4.4 and 4.5 in the section titled "Rule Life |
8b81d1ef | 1520 | * Cycle" in ofproto-provider.h. */ |
b74cb5d8 | 1521 | void |
8b81d1ef | 1522 | ofproto_rule_delete(struct ofproto *ofproto, struct rule *rule) |
15aaf599 | 1523 | OVS_EXCLUDED(ofproto_mutex) |
7ee20df1 | 1524 | { |
834fe5cb BP |
1525 | /* This skips the ofmonitor and flow-removed notifications because the |
1526 | * switch is being deleted and any OpenFlow channels have been or soon will | |
1527 | * be killed. */ | |
15aaf599 | 1528 | ovs_mutex_lock(&ofproto_mutex); |
39c94593 | 1529 | |
30d0452c | 1530 | if (rule->state == RULE_INSERTED) { |
39c94593 | 1531 | /* Make sure there is no postponed removal of the rule. */ |
44e0c35d | 1532 | ovs_assert(cls_rule_visible_in_version(&rule->cr, OVS_VERSION_MAX)); |
39c94593 | 1533 | |
46ab60bf BP |
1534 | classifier_remove_assert(&rule->ofproto->tables[rule->table_id].cls, |
1535 | &rule->cr); | |
39c94593 | 1536 | ofproto_rule_remove__(rule->ofproto, rule); |
1fc71871 JR |
1537 | if (ofproto->ofproto_class->rule_delete) { |
1538 | ofproto->ofproto_class->rule_delete(rule); | |
1539 | } | |
25010c68 JR |
1540 | |
1541 | /* This may not be the last reference to the rule. */ | |
39c94593 JR |
1542 | ofproto_rule_unref(rule); |
1543 | } | |
15aaf599 | 1544 | ovs_mutex_unlock(&ofproto_mutex); |
8037acb4 BP |
1545 | } |
1546 | ||
1547 | static void | |
1548 | ofproto_flush__(struct ofproto *ofproto) | |
15aaf599 | 1549 | OVS_EXCLUDED(ofproto_mutex) |
8037acb4 | 1550 | { |
d0918789 | 1551 | struct oftable *table; |
7ee20df1 | 1552 | |
3948503a | 1553 | /* This will flush all datapath flows. */ |
7ee20df1 BP |
1554 | if (ofproto->ofproto_class->flush) { |
1555 | ofproto->ofproto_class->flush(ofproto); | |
1556 | } | |
1557 | ||
3948503a JR |
1558 | /* XXX: There is a small race window here, where new datapath flows can be |
1559 | * created by upcall handlers based on the existing flow table. We can not | |
1560 | * call ofproto class flush while holding 'ofproto_mutex' to prevent this, | |
1561 | * as then we could deadlock on syncing with the handler threads waiting on | |
1562 | * the same mutex. */ | |
1563 | ||
15aaf599 | 1564 | ovs_mutex_lock(&ofproto_mutex); |
b772ded8 | 1565 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
802f84ff | 1566 | struct rule_collection rules; |
78c8df12 | 1567 | struct rule *rule; |
7ee20df1 | 1568 | |
5c67e4af BP |
1569 | if (table->flags & OFTABLE_HIDDEN) { |
1570 | continue; | |
1571 | } | |
1572 | ||
802f84ff JR |
1573 | rule_collection_init(&rules); |
1574 | ||
de4ad4a2 | 1575 | CLS_FOR_EACH (rule, cr, &table->cls) { |
802f84ff | 1576 | rule_collection_add(&rules, rule); |
7ee20df1 | 1577 | } |
802f84ff | 1578 | delete_flows__(&rules, OFPRR_DELETE, NULL); |
7ee20df1 | 1579 | } |
d3b84833 BP |
1580 | ofproto_group_delete_all__(ofproto); |
1581 | meter_delete_all(ofproto); | |
3948503a JR |
1582 | /* XXX: Concurrent handler threads may insert new learned flows based on |
1583 | * learn actions of the now deleted flows right after we release | |
1584 | * 'ofproto_mutex'. */ | |
15aaf599 | 1585 | ovs_mutex_unlock(&ofproto_mutex); |
7ee20df1 BP |
1586 | } |
1587 | ||
abe529af BP |
1588 | static void |
1589 | ofproto_destroy__(struct ofproto *ofproto) | |
15aaf599 | 1590 | OVS_EXCLUDED(ofproto_mutex) |
abe529af | 1591 | { |
d0918789 | 1592 | struct oftable *table; |
6c1491fb | 1593 | |
db88b35c | 1594 | cmap_destroy(&ofproto->groups); |
7395c052 | 1595 | |
6d917cd2 | 1596 | ovs_mutex_lock(&ofproto_mutex); |
abe529af | 1597 | hmap_remove(&all_ofprotos, &ofproto->hmap_node); |
6d917cd2 | 1598 | ovs_mutex_unlock(&ofproto_mutex); |
04f48a68 | 1599 | |
abe529af | 1600 | free(ofproto->name); |
955a7127 | 1601 | free(ofproto->type); |
abe529af BP |
1602 | free(ofproto->mfr_desc); |
1603 | free(ofproto->hw_desc); | |
1604 | free(ofproto->sw_desc); | |
1605 | free(ofproto->serial_desc); | |
1606 | free(ofproto->dp_desc); | |
abe529af | 1607 | hmap_destroy(&ofproto->ports); |
fdcea803 | 1608 | hmap_destroy(&ofproto->ofport_usage); |
abe529af | 1609 | shash_destroy(&ofproto->port_by_name); |
e1b1d06a | 1610 | simap_destroy(&ofproto->ofp_requests); |
6c1491fb | 1611 | |
b772ded8 | 1612 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
d0918789 | 1613 | oftable_destroy(table); |
6c1491fb BP |
1614 | } |
1615 | free(ofproto->tables); | |
fa066f01 | 1616 | |
d3b84833 BP |
1617 | hmap_destroy(&ofproto->meters); |
1618 | ||
a70436a3 YHW |
1619 | ovs_mutex_lock(&ofproto->vl_mff_map.mutex); |
1620 | mf_vl_mff_map_clear(&ofproto->vl_mff_map, true); | |
1621 | ovs_mutex_unlock(&ofproto->vl_mff_map.mutex); | |
1622 | cmap_destroy(&ofproto->vl_mff_map.cmap); | |
1623 | ovs_mutex_destroy(&ofproto->vl_mff_map.mutex); | |
1624 | tun_metadata_free(ovsrcu_get_protected(struct tun_table *, | |
1625 | &ofproto->metadata_tab)); | |
1626 | ||
1406c79b BP |
1627 | ovs_assert(hindex_is_empty(&ofproto->cookies)); |
1628 | hindex_destroy(&ofproto->cookies); | |
1629 | ||
35f48b8b BP |
1630 | ovs_assert(hmap_is_empty(&ofproto->learned_cookies)); |
1631 | hmap_destroy(&ofproto->learned_cookies); | |
1632 | ||
abe529af BP |
1633 | ofproto->ofproto_class->dealloc(ofproto); |
1634 | } | |
fa066f01 | 1635 | |
39c94593 JR |
1636 | /* Destroying rules is doubly deferred, must have 'ofproto' around for them. |
1637 | * - 1st we defer the removal of the rules from the classifier | |
1638 | * - 2nd we defer the actual destruction of the rules. */ | |
1639 | static void | |
1640 | ofproto_destroy_defer__(struct ofproto *ofproto) | |
1641 | OVS_EXCLUDED(ofproto_mutex) | |
1642 | { | |
1643 | ovsrcu_postpone(ofproto_destroy__, ofproto); | |
1644 | } | |
1645 | ||
064af421 | 1646 | void |
9aad5a5a | 1647 | ofproto_destroy(struct ofproto *p, bool del) |
15aaf599 | 1648 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 1649 | { |
ca0f572c | 1650 | struct ofport *ofport, *next_ofport; |
4ec3d7c7 | 1651 | struct ofport_usage *usage; |
064af421 BP |
1652 | |
1653 | if (!p) { | |
1654 | return; | |
1655 | } | |
1656 | ||
7ee20df1 | 1657 | ofproto_flush__(p); |
4e8e4213 | 1658 | HMAP_FOR_EACH_SAFE (ofport, next_ofport, hmap_node, &p->ports) { |
9aad5a5a | 1659 | ofport_destroy(ofport, del); |
064af421 | 1660 | } |
064af421 | 1661 | |
4ec3d7c7 | 1662 | HMAP_FOR_EACH_POP (usage, hmap_node, &p->ofport_usage) { |
fdcea803 GS |
1663 | free(usage); |
1664 | } | |
1665 | ||
fe13ccdc | 1666 | p->ofproto_class->destruct(p, del); |
58f19539 DDP |
1667 | |
1668 | /* We should not postpone this because it involves deleting a listening | |
25010c68 JR |
1669 | * socket which we may want to reopen soon. 'connmgr' may be used by other |
1670 | * threads only if they take the ofproto_mutex and read a non-NULL | |
1671 | * 'ofproto->connmgr'. */ | |
1672 | ovs_mutex_lock(&ofproto_mutex); | |
58f19539 | 1673 | connmgr_destroy(p->connmgr); |
25010c68 JR |
1674 | p->connmgr = NULL; |
1675 | ovs_mutex_unlock(&ofproto_mutex); | |
58f19539 | 1676 | |
f416c8d6 | 1677 | /* Destroying rules is deferred, must have 'ofproto' around for them. */ |
39c94593 | 1678 | ovsrcu_postpone(ofproto_destroy_defer__, p); |
064af421 BP |
1679 | } |
1680 | ||
abe529af BP |
1681 | /* Destroys the datapath with the respective 'name' and 'type'. With the Linux |
1682 | * kernel datapath, for example, this destroys the datapath in the kernel, and | |
1683 | * with the netdev-based datapath, it tears down the data structures that | |
1684 | * represent the datapath. | |
1685 | * | |
1686 | * The datapath should not be currently open as an ofproto. */ | |
064af421 | 1687 | int |
abe529af | 1688 | ofproto_delete(const char *name, const char *type) |
064af421 | 1689 | { |
abe529af BP |
1690 | const struct ofproto_class *class = ofproto_class_find__(type); |
1691 | return (!class ? EAFNOSUPPORT | |
1692 | : !class->del ? EACCES | |
1693 | : class->del(type, name)); | |
064af421 BP |
1694 | } |
1695 | ||
e9e28be3 BP |
1696 | static void |
1697 | process_port_change(struct ofproto *ofproto, int error, char *devname) | |
1698 | { | |
1699 | if (error == ENOBUFS) { | |
1700 | reinit_ports(ofproto); | |
1701 | } else if (!error) { | |
1702 | update_port(ofproto, devname); | |
1703 | free(devname); | |
1704 | } | |
1705 | } | |
1706 | ||
11a574a7 JP |
1707 | int |
1708 | ofproto_type_run(const char *datapath_type) | |
1709 | { | |
1710 | const struct ofproto_class *class; | |
1711 | int error; | |
1712 | ||
1713 | datapath_type = ofproto_normalize_type(datapath_type); | |
1714 | class = ofproto_class_find__(datapath_type); | |
1715 | ||
1716 | error = class->type_run ? class->type_run(datapath_type) : 0; | |
1717 | if (error && error != EAGAIN) { | |
1718 | VLOG_ERR_RL(&rl, "%s: type_run failed (%s)", | |
10a89ef0 | 1719 | datapath_type, ovs_strerror(error)); |
11a574a7 JP |
1720 | } |
1721 | return error; | |
1722 | } | |
1723 | ||
11a574a7 JP |
1724 | void |
1725 | ofproto_type_wait(const char *datapath_type) | |
1726 | { | |
1727 | const struct ofproto_class *class; | |
1728 | ||
1729 | datapath_type = ofproto_normalize_type(datapath_type); | |
1730 | class = ofproto_class_find__(datapath_type); | |
1731 | ||
1732 | if (class->type_wait) { | |
1733 | class->type_wait(datapath_type); | |
1734 | } | |
1735 | } | |
1736 | ||
064af421 | 1737 | int |
abe529af | 1738 | ofproto_run(struct ofproto *p) |
064af421 | 1739 | { |
064af421 | 1740 | int error; |
da4a6191 | 1741 | uint64_t new_seq; |
064af421 | 1742 | |
abe529af | 1743 | error = p->ofproto_class->run(p); |
5fcc0d00 | 1744 | if (error && error != EAGAIN) { |
10a89ef0 | 1745 | VLOG_ERR_RL(&rl, "%s: run failed (%s)", p->name, ovs_strerror(error)); |
149f577a JG |
1746 | } |
1747 | ||
448c2fa8 EJ |
1748 | /* Restore the eviction group heap invariant occasionally. */ |
1749 | if (p->eviction_group_timer < time_msec()) { | |
1750 | size_t i; | |
1751 | ||
1752 | p->eviction_group_timer = time_msec() + 1000; | |
1753 | ||
1754 | for (i = 0; i < p->n_tables; i++) { | |
1755 | struct oftable *table = &p->tables[i]; | |
1756 | struct eviction_group *evg; | |
448c2fa8 EJ |
1757 | struct rule *rule; |
1758 | ||
82c22d34 | 1759 | if (!table->eviction) { |
448c2fa8 EJ |
1760 | continue; |
1761 | } | |
1762 | ||
d79e3d70 | 1763 | if (table->n_flows > 100000) { |
1a9bb326 EJ |
1764 | static struct vlog_rate_limit count_rl = |
1765 | VLOG_RATE_LIMIT_INIT(1, 1); | |
1766 | VLOG_WARN_RL(&count_rl, "Table %"PRIuSIZE" has an excessive" | |
d79e3d70 | 1767 | " number of rules: %d", i, table->n_flows); |
1a9bb326 EJ |
1768 | } |
1769 | ||
15aaf599 | 1770 | ovs_mutex_lock(&ofproto_mutex); |
5f0476ce | 1771 | CLS_FOR_EACH (rule, cr, &table->cls) { |
6d56c1f1 K |
1772 | if (rule->idle_timeout || rule->hard_timeout) { |
1773 | if (!rule->eviction_group) { | |
1774 | eviction_group_add_rule(rule); | |
1775 | } else { | |
1776 | heap_raw_change(&rule->evg_node, | |
1777 | rule_eviction_priority(p, rule)); | |
1778 | } | |
448c2fa8 EJ |
1779 | } |
1780 | } | |
6d56c1f1 K |
1781 | |
1782 | HEAP_FOR_EACH (evg, size_node, &table->eviction_groups_by_size) { | |
1783 | heap_rebuild(&evg->rules); | |
1784 | } | |
15aaf599 | 1785 | ovs_mutex_unlock(&ofproto_mutex); |
448c2fa8 EJ |
1786 | } |
1787 | } | |
1788 | ||
5bf0e941 | 1789 | if (p->ofproto_class->port_poll) { |
7436ed80 BP |
1790 | char *devname; |
1791 | ||
5bf0e941 BP |
1792 | while ((error = p->ofproto_class->port_poll(p, &devname)) != EAGAIN) { |
1793 | process_port_change(p, error, devname); | |
064af421 | 1794 | } |
e9e28be3 | 1795 | } |
031d8bff | 1796 | |
da4a6191 JS |
1797 | new_seq = seq_read(connectivity_seq_get()); |
1798 | if (new_seq != p->change_seq) { | |
1799 | struct sset devnames; | |
1800 | const char *devname; | |
1801 | struct ofport *ofport; | |
1802 | ||
1803 | /* Update OpenFlow port status for any port whose netdev has changed. | |
1804 | * | |
1805 | * Refreshing a given 'ofport' can cause an arbitrary ofport to be | |
1806 | * destroyed, so it's not safe to update ports directly from the | |
1807 | * HMAP_FOR_EACH loop, or even to use HMAP_FOR_EACH_SAFE. Instead, we | |
1808 | * need this two-phase approach. */ | |
1809 | sset_init(&devnames); | |
1810 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
61501798 AW |
1811 | uint64_t port_change_seq; |
1812 | ||
1813 | port_change_seq = netdev_get_change_seq(ofport->netdev); | |
1814 | if (ofport->change_seq != port_change_seq) { | |
1815 | ofport->change_seq = port_change_seq; | |
1816 | sset_add(&devnames, netdev_get_name(ofport->netdev)); | |
1817 | } | |
031d8bff | 1818 | } |
da4a6191 JS |
1819 | SSET_FOR_EACH (devname, &devnames) { |
1820 | update_port(p, devname); | |
1821 | } | |
1822 | sset_destroy(&devnames); | |
1823 | ||
1824 | p->change_seq = new_seq; | |
064af421 BP |
1825 | } |
1826 | ||
834fe5cb | 1827 | connmgr_run(p->connmgr, handle_openflow); |
064af421 | 1828 | |
5fcc0d00 BP |
1829 | return error; |
1830 | } | |
1831 | ||
064af421 BP |
1832 | void |
1833 | ofproto_wait(struct ofproto *p) | |
1834 | { | |
abe529af | 1835 | p->ofproto_class->wait(p); |
5bf0e941 BP |
1836 | if (p->ofproto_class->port_poll_wait) { |
1837 | p->ofproto_class->port_poll_wait(p); | |
e7934396 | 1838 | } |
da4a6191 | 1839 | seq_wait(connectivity_seq_get(), p->change_seq); |
834fe5cb | 1840 | connmgr_wait(p->connmgr); |
064af421 BP |
1841 | } |
1842 | ||
064af421 BP |
1843 | bool |
1844 | ofproto_is_alive(const struct ofproto *p) | |
1845 | { | |
19a87e36 | 1846 | return connmgr_has_controllers(p->connmgr); |
064af421 BP |
1847 | } |
1848 | ||
0d085684 BP |
1849 | /* Adds some memory usage statistics for 'ofproto' into 'usage', for use with |
1850 | * memory_report(). */ | |
1851 | void | |
1852 | ofproto_get_memory_usage(const struct ofproto *ofproto, struct simap *usage) | |
1853 | { | |
1854 | const struct oftable *table; | |
1855 | unsigned int n_rules; | |
1856 | ||
1857 | simap_increase(usage, "ports", hmap_count(&ofproto->ports)); | |
15aaf599 | 1858 | |
0d085684 BP |
1859 | n_rules = 0; |
1860 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { | |
d79e3d70 | 1861 | n_rules += table->n_flows; |
0d085684 BP |
1862 | } |
1863 | simap_increase(usage, "rules", n_rules); | |
1864 | ||
1865 | if (ofproto->ofproto_class->get_memory_usage) { | |
1866 | ofproto->ofproto_class->get_memory_usage(ofproto, usage); | |
1867 | } | |
1868 | ||
1869 | connmgr_get_memory_usage(ofproto->connmgr, usage); | |
1870 | } | |
1871 | ||
1c030aa5 EJ |
1872 | void |
1873 | ofproto_type_get_memory_usage(const char *datapath_type, struct simap *usage) | |
1874 | { | |
1875 | const struct ofproto_class *class; | |
1876 | ||
1877 | datapath_type = ofproto_normalize_type(datapath_type); | |
1878 | class = ofproto_class_find__(datapath_type); | |
1879 | ||
1880 | if (class && class->type_get_memory_usage) { | |
1881 | class->type_get_memory_usage(datapath_type, usage); | |
1882 | } | |
1883 | } | |
1884 | ||
bffc0589 | 1885 | void |
2cdcb898 | 1886 | ofproto_get_ofproto_controller_info(const struct ofproto *ofproto, |
bffc0589 AE |
1887 | struct shash *info) |
1888 | { | |
19a87e36 | 1889 | connmgr_get_controller_info(ofproto->connmgr, info); |
bffc0589 AE |
1890 | } |
1891 | ||
1892 | void | |
1893 | ofproto_free_ofproto_controller_info(struct shash *info) | |
1894 | { | |
72ba2ed3 | 1895 | connmgr_free_controller_info(info); |
bffc0589 AE |
1896 | } |
1897 | ||
b5827b24 BP |
1898 | /* Makes a deep copy of 'old' into 'port'. */ |
1899 | void | |
1900 | ofproto_port_clone(struct ofproto_port *port, const struct ofproto_port *old) | |
1901 | { | |
1902 | port->name = xstrdup(old->name); | |
1903 | port->type = xstrdup(old->type); | |
1904 | port->ofp_port = old->ofp_port; | |
1905 | } | |
1906 | ||
1907 | /* Frees memory allocated to members of 'ofproto_port'. | |
3a6ccc8c | 1908 | * |
b5827b24 BP |
1909 | * Do not call this function on an ofproto_port obtained from |
1910 | * ofproto_port_dump_next(): that function retains ownership of the data in the | |
1911 | * ofproto_port. */ | |
1912 | void | |
1913 | ofproto_port_destroy(struct ofproto_port *ofproto_port) | |
1914 | { | |
1915 | free(ofproto_port->name); | |
1916 | free(ofproto_port->type); | |
1917 | } | |
1918 | ||
b5827b24 | 1919 | /* Initializes 'dump' to begin dumping the ports in an ofproto. |
3a6ccc8c | 1920 | * |
b5827b24 BP |
1921 | * This function provides no status indication. An error status for the entire |
1922 | * dump operation is provided when it is completed by calling | |
1923 | * ofproto_port_dump_done(). | |
1924 | */ | |
1925 | void | |
1926 | ofproto_port_dump_start(struct ofproto_port_dump *dump, | |
1927 | const struct ofproto *ofproto) | |
1928 | { | |
abe529af BP |
1929 | dump->ofproto = ofproto; |
1930 | dump->error = ofproto->ofproto_class->port_dump_start(ofproto, | |
1931 | &dump->state); | |
b5827b24 BP |
1932 | } |
1933 | ||
1934 | /* Attempts to retrieve another port from 'dump', which must have been created | |
1935 | * with ofproto_port_dump_start(). On success, stores a new ofproto_port into | |
1936 | * 'port' and returns true. On failure, returns false. | |
1937 | * | |
1938 | * Failure might indicate an actual error or merely that the last port has been | |
1939 | * dumped. An error status for the entire dump operation is provided when it | |
1940 | * is completed by calling ofproto_port_dump_done(). | |
1941 | * | |
1942 | * The ofproto owns the data stored in 'port'. It will remain valid until at | |
1943 | * least the next time 'dump' is passed to ofproto_port_dump_next() or | |
1944 | * ofproto_port_dump_done(). */ | |
1945 | bool | |
1946 | ofproto_port_dump_next(struct ofproto_port_dump *dump, | |
1947 | struct ofproto_port *port) | |
1948 | { | |
abe529af BP |
1949 | const struct ofproto *ofproto = dump->ofproto; |
1950 | ||
1951 | if (dump->error) { | |
1952 | return false; | |
1953 | } | |
b5827b24 | 1954 | |
abe529af BP |
1955 | dump->error = ofproto->ofproto_class->port_dump_next(ofproto, dump->state, |
1956 | port); | |
1957 | if (dump->error) { | |
1958 | ofproto->ofproto_class->port_dump_done(ofproto, dump->state); | |
1959 | return false; | |
b5827b24 | 1960 | } |
abe529af | 1961 | return true; |
b5827b24 BP |
1962 | } |
1963 | ||
1964 | /* Completes port table dump operation 'dump', which must have been created | |
1965 | * with ofproto_port_dump_start(). Returns 0 if the dump operation was | |
1966 | * error-free, otherwise a positive errno value describing the problem. */ | |
3a6ccc8c | 1967 | int |
b5827b24 | 1968 | ofproto_port_dump_done(struct ofproto_port_dump *dump) |
3a6ccc8c | 1969 | { |
abe529af BP |
1970 | const struct ofproto *ofproto = dump->ofproto; |
1971 | if (!dump->error) { | |
1972 | dump->error = ofproto->ofproto_class->port_dump_done(ofproto, | |
1973 | dump->state); | |
1974 | } | |
1975 | return dump->error == EOF ? 0 : dump->error; | |
b5827b24 BP |
1976 | } |
1977 | ||
c381bca5 BP |
1978 | /* Returns the type to pass to netdev_open() when 'ofproto' has a port of type |
1979 | * 'port_type', for a few special cases when a netdev type differs from a port | |
1980 | * type. For example, when using the userspace datapath, a port of type | |
1981 | * "internal" needs to be opened as "tap". | |
0aeaabc8 JP |
1982 | * |
1983 | * Returns either 'type' itself or a string literal, which must not be | |
1984 | * freed. */ | |
1985 | const char * | |
c381bca5 | 1986 | ofproto_port_open_type(const struct ofproto *ofproto, const char *port_type) |
0aeaabc8 | 1987 | { |
c381bca5 BP |
1988 | return (ofproto->ofproto_class->port_open_type |
1989 | ? ofproto->ofproto_class->port_open_type(ofproto->type, port_type) | |
0aeaabc8 JP |
1990 | : port_type); |
1991 | } | |
1992 | ||
81816a5f JP |
1993 | /* Attempts to add 'netdev' as a port on 'ofproto'. If 'ofp_portp' is |
1994 | * non-null and '*ofp_portp' is not OFPP_NONE, attempts to use that as | |
1995 | * the port's OpenFlow port number. | |
1996 | * | |
1997 | * If successful, returns 0 and sets '*ofp_portp' to the new port's | |
1998 | * OpenFlow port number (if 'ofp_portp' is non-null). On failure, | |
1999 | * returns a positive errno value and sets '*ofp_portp' to OFPP_NONE (if | |
2000 | * 'ofp_portp' is non-null). */ | |
b5827b24 BP |
2001 | int |
2002 | ofproto_port_add(struct ofproto *ofproto, struct netdev *netdev, | |
4e022ec0 | 2003 | ofp_port_t *ofp_portp) |
b5827b24 | 2004 | { |
4e022ec0 | 2005 | ofp_port_t ofp_port = ofp_portp ? *ofp_portp : OFPP_NONE; |
3a6ccc8c BP |
2006 | int error; |
2007 | ||
e1b1d06a | 2008 | error = ofproto->ofproto_class->port_add(ofproto, netdev); |
1fa24dea | 2009 | if (!error) { |
e1b1d06a JP |
2010 | const char *netdev_name = netdev_get_name(netdev); |
2011 | ||
4e022ec0 AW |
2012 | simap_put(&ofproto->ofp_requests, netdev_name, |
2013 | ofp_to_u16(ofp_port)); | |
01c77073 | 2014 | error = update_port(ofproto, netdev_name); |
1fa24dea | 2015 | } |
b5827b24 | 2016 | if (ofp_portp) { |
17f69db5 BP |
2017 | *ofp_portp = OFPP_NONE; |
2018 | if (!error) { | |
2019 | struct ofproto_port ofproto_port; | |
2020 | ||
2021 | error = ofproto_port_query_by_name(ofproto, | |
2022 | netdev_get_name(netdev), | |
2023 | &ofproto_port); | |
2024 | if (!error) { | |
2025 | *ofp_portp = ofproto_port.ofp_port; | |
2026 | ofproto_port_destroy(&ofproto_port); | |
2027 | } | |
2028 | } | |
3a6ccc8c BP |
2029 | } |
2030 | return error; | |
2031 | } | |
2032 | ||
b5827b24 BP |
2033 | /* Looks up a port named 'devname' in 'ofproto'. On success, returns 0 and |
2034 | * initializes '*port' appropriately; on failure, returns a positive errno | |
2035 | * value. | |
2036 | * | |
abe529af | 2037 | * The caller owns the data in 'ofproto_port' and must free it with |
b5827b24 BP |
2038 | * ofproto_port_destroy() when it is no longer needed. */ |
2039 | int | |
2040 | ofproto_port_query_by_name(const struct ofproto *ofproto, const char *devname, | |
2041 | struct ofproto_port *port) | |
a4e2e1f2 | 2042 | { |
b5827b24 BP |
2043 | int error; |
2044 | ||
abe529af BP |
2045 | error = ofproto->ofproto_class->port_query_by_name(ofproto, devname, port); |
2046 | if (error) { | |
2047 | memset(port, 0, sizeof *port); | |
b5827b24 BP |
2048 | } |
2049 | return error; | |
a4e2e1f2 EJ |
2050 | } |
2051 | ||
b5827b24 | 2052 | /* Deletes port number 'ofp_port' from the datapath for 'ofproto'. |
3a6ccc8c | 2053 | * Returns 0 if successful, otherwise a positive errno. */ |
064af421 | 2054 | int |
4e022ec0 | 2055 | ofproto_port_del(struct ofproto *ofproto, ofp_port_t ofp_port) |
064af421 | 2056 | { |
abe529af | 2057 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1264ec95 | 2058 | const char *name = ofport ? netdev_get_name(ofport->netdev) : "<unknown>"; |
e1b1d06a | 2059 | struct simap_node *ofp_request_node; |
3cf10406 | 2060 | int error; |
cdee00fd | 2061 | |
e1b1d06a JP |
2062 | ofp_request_node = simap_find(&ofproto->ofp_requests, name); |
2063 | if (ofp_request_node) { | |
2064 | simap_delete(&ofproto->ofp_requests, ofp_request_node); | |
2065 | } | |
2066 | ||
abe529af | 2067 | error = ofproto->ofproto_class->port_del(ofproto, ofp_port); |
892815f5 | 2068 | if (!error && ofport) { |
1264ec95 BP |
2069 | /* 'name' is the netdev's name and update_port() is going to close the |
2070 | * netdev. Just in case update_port() refers to 'name' after it | |
3a6ccc8c BP |
2071 | * destroys 'ofport', make a copy of it around the update_port() |
2072 | * call. */ | |
2073 | char *devname = xstrdup(name); | |
2074 | update_port(ofproto, devname); | |
2075 | free(devname); | |
3cf10406 BP |
2076 | } |
2077 | return error; | |
064af421 BP |
2078 | } |
2079 | ||
91364d18 IM |
2080 | /* Refreshes datapath configuration of port number 'ofp_port' in 'ofproto'. |
2081 | * | |
2082 | * This function has no effect if 'ofproto' does not have a port 'ofp_port'. */ | |
2083 | void | |
2084 | ofproto_port_set_config(struct ofproto *ofproto, ofp_port_t ofp_port, | |
2085 | const struct smap *cfg) | |
2086 | { | |
2087 | struct ofport *ofport; | |
2088 | int error; | |
2089 | ||
2090 | ofport = ofproto_get_port(ofproto, ofp_port); | |
2091 | if (!ofport) { | |
94783c7c | 2092 | VLOG_WARN("%s: cannot configure datapath on nonexistent port %"PRIu32, |
91364d18 IM |
2093 | ofproto->name, ofp_port); |
2094 | return; | |
2095 | } | |
2096 | ||
2097 | error = (ofproto->ofproto_class->port_set_config | |
2098 | ? ofproto->ofproto_class->port_set_config(ofport, cfg) | |
2099 | : EOPNOTSUPP); | |
2100 | if (error) { | |
94783c7c | 2101 | VLOG_WARN("%s: datapath configuration on port %"PRIu32 |
91364d18 IM |
2102 | " (%s) failed (%s)", |
2103 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), | |
2104 | ovs_strerror(error)); | |
2105 | } | |
2106 | } | |
2107 | ||
2108 | ||
276f6518 SH |
2109 | static void |
2110 | flow_mod_init(struct ofputil_flow_mod *fm, | |
eb391b76 | 2111 | const struct match *match, int priority, |
276f6518 SH |
2112 | const struct ofpact *ofpacts, size_t ofpacts_len, |
2113 | enum ofp_flow_mod_command command) | |
2114 | { | |
39cc5c4a | 2115 | *fm = (struct ofputil_flow_mod) { |
39cc5c4a BP |
2116 | .priority = priority, |
2117 | .table_id = 0, | |
2118 | .command = command, | |
2119 | .buffer_id = UINT32_MAX, | |
2120 | .out_port = OFPP_ANY, | |
2121 | .out_group = OFPG_ANY, | |
2122 | .ofpacts = CONST_CAST(struct ofpact *, ofpacts), | |
2123 | .ofpacts_len = ofpacts_len, | |
39cc5c4a | 2124 | }; |
6a6b7060 | 2125 | minimatch_init(&fm->match, match); |
276f6518 SH |
2126 | } |
2127 | ||
97f63e57 BP |
2128 | static int |
2129 | simple_flow_mod(struct ofproto *ofproto, | |
eb391b76 | 2130 | const struct match *match, int priority, |
97f63e57 BP |
2131 | const struct ofpact *ofpacts, size_t ofpacts_len, |
2132 | enum ofp_flow_mod_command command) | |
2133 | { | |
7338102b | 2134 | struct ofputil_flow_mod fm; |
7338102b | 2135 | flow_mod_init(&fm, match, priority, ofpacts, ofpacts_len, command); |
6a6b7060 BP |
2136 | enum ofperr error = handle_flow_mod__(ofproto, &fm, NULL); |
2137 | minimatch_destroy(&fm.match); | |
2138 | return error; | |
97f63e57 BP |
2139 | } |
2140 | ||
6c1491fb | 2141 | /* Adds a flow to OpenFlow flow table 0 in 'p' that matches 'cls_rule' and |
fa8b054f BP |
2142 | * performs the 'n_actions' actions in 'actions'. The new flow will not |
2143 | * timeout. | |
2144 | * | |
2145 | * If cls_rule->priority is in the range of priorities supported by OpenFlow | |
2146 | * (0...65535, inclusive) then the flow will be visible to OpenFlow | |
2147 | * controllers; otherwise, it will be hidden. | |
2148 | * | |
f25d0cf3 | 2149 | * The caller retains ownership of 'cls_rule' and 'ofpacts'. |
6c1491fb BP |
2150 | * |
2151 | * This is a helper function for in-band control and fail-open. */ | |
064af421 | 2152 | void |
81a76618 | 2153 | ofproto_add_flow(struct ofproto *ofproto, const struct match *match, |
eb391b76 | 2154 | int priority, |
f25d0cf3 | 2155 | const struct ofpact *ofpacts, size_t ofpacts_len) |
15aaf599 | 2156 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 2157 | { |
7ee20df1 | 2158 | const struct rule *rule; |
6f00e29b | 2159 | bool must_add; |
7ee20df1 | 2160 | |
97f63e57 BP |
2161 | /* First do a cheap check whether the rule we're looking for already exists |
2162 | * with the actions that we want. If it does, then we're done. */ | |
81a76618 | 2163 | rule = rule_from_cls_rule(classifier_find_match_exactly( |
2b7b1427 | 2164 | &ofproto->tables[0].cls, match, priority, |
44e0c35d | 2165 | OVS_VERSION_MAX)); |
6f00e29b | 2166 | if (rule) { |
dc723c44 | 2167 | const struct rule_actions *actions = rule_get_actions(rule); |
06a0f3e2 | 2168 | must_add = !ofpacts_equal(actions->ofpacts, actions->ofpacts_len, |
6f00e29b | 2169 | ofpacts, ofpacts_len); |
6f00e29b BP |
2170 | } else { |
2171 | must_add = true; | |
2172 | } | |
97f63e57 BP |
2173 | |
2174 | /* If there's no such rule or the rule doesn't have the actions we want, | |
2175 | * fall back to a executing a full flow mod. We can't optimize this at | |
2176 | * all because we didn't take enough locks above to ensure that the flow | |
2177 | * table didn't already change beneath us. */ | |
6f00e29b | 2178 | if (must_add) { |
97f63e57 BP |
2179 | simple_flow_mod(ofproto, match, priority, ofpacts, ofpacts_len, |
2180 | OFPFC_MODIFY_STRICT); | |
7ee20df1 | 2181 | } |
064af421 BP |
2182 | } |
2183 | ||
d51c8b71 JR |
2184 | /* Executes the flow modification specified in 'fm'. Returns 0 on success, or |
2185 | * an OFPERR_* OpenFlow error code on failure. | |
75a75043 | 2186 | * |
2c7ee524 | 2187 | * This is a helper function for in-band control and fail-open. */ |
d51c8b71 | 2188 | enum ofperr |
7338102b | 2189 | ofproto_flow_mod(struct ofproto *ofproto, const struct ofputil_flow_mod *fm) |
15aaf599 | 2190 | OVS_EXCLUDED(ofproto_mutex) |
75a75043 | 2191 | { |
7338102b | 2192 | return handle_flow_mod__(ofproto, fm, NULL); |
75a75043 BP |
2193 | } |
2194 | ||
6c1491fb BP |
2195 | /* Searches for a rule with matching criteria exactly equal to 'target' in |
2196 | * ofproto's table 0 and, if it finds one, deletes it. | |
2197 | * | |
2198 | * This is a helper function for in-band control and fail-open. */ | |
b20f4073 | 2199 | void |
81a76618 | 2200 | ofproto_delete_flow(struct ofproto *ofproto, |
eb391b76 | 2201 | const struct match *target, int priority) |
25010c68 | 2202 | OVS_REQUIRES(ofproto_mutex) |
064af421 | 2203 | { |
8037acb4 | 2204 | struct classifier *cls = &ofproto->tables[0].cls; |
064af421 BP |
2205 | struct rule *rule; |
2206 | ||
97f63e57 BP |
2207 | /* First do a cheap check whether the rule we're looking for has already |
2208 | * been deleted. If so, then we're done. */ | |
39c94593 | 2209 | rule = rule_from_cls_rule(classifier_find_match_exactly( |
44e0c35d | 2210 | cls, target, priority, OVS_VERSION_MAX)); |
834fe5cb BP |
2211 | if (!rule) { |
2212 | return; | |
bcf84111 | 2213 | } |
834fe5cb | 2214 | |
25010c68 JR |
2215 | struct rule_collection rules; |
2216 | ||
2217 | rule_collection_init(&rules); | |
2218 | rule_collection_add(&rules, rule); | |
2219 | delete_flows__(&rules, OFPRR_DELETE, NULL); | |
2220 | rule_collection_destroy(&rules); | |
142e1f5c BP |
2221 | } |
2222 | ||
834fe5cb BP |
2223 | /* Delete all of the flows from all of ofproto's flow tables, then reintroduce |
2224 | * the flows required by in-band control and fail-open. */ | |
142e1f5c BP |
2225 | void |
2226 | ofproto_flush_flows(struct ofproto *ofproto) | |
2227 | { | |
7ee20df1 | 2228 | COVERAGE_INC(ofproto_flush); |
834fe5cb BP |
2229 | ofproto_flush__(ofproto); |
2230 | connmgr_flushed(ofproto->connmgr); | |
064af421 BP |
2231 | } |
2232 | \f | |
2233 | static void | |
2234 | reinit_ports(struct ofproto *p) | |
2235 | { | |
abe529af | 2236 | struct ofproto_port_dump dump; |
b3c01ed3 | 2237 | struct sset devnames; |
064af421 | 2238 | struct ofport *ofport; |
abe529af | 2239 | struct ofproto_port ofproto_port; |
b3c01ed3 | 2240 | const char *devname; |
064af421 | 2241 | |
898bf89d JP |
2242 | COVERAGE_INC(ofproto_reinit_ports); |
2243 | ||
b3c01ed3 | 2244 | sset_init(&devnames); |
4e8e4213 | 2245 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { |
1264ec95 | 2246 | sset_add(&devnames, netdev_get_name(ofport->netdev)); |
064af421 | 2247 | } |
abe529af BP |
2248 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { |
2249 | sset_add(&devnames, ofproto_port.name); | |
064af421 | 2250 | } |
064af421 | 2251 | |
b3c01ed3 BP |
2252 | SSET_FOR_EACH (devname, &devnames) { |
2253 | update_port(p, devname); | |
064af421 | 2254 | } |
b3c01ed3 | 2255 | sset_destroy(&devnames); |
064af421 BP |
2256 | } |
2257 | ||
4e022ec0 | 2258 | static ofp_port_t |
e1b1d06a JP |
2259 | alloc_ofp_port(struct ofproto *ofproto, const char *netdev_name) |
2260 | { | |
4e022ec0 | 2261 | uint16_t port_idx; |
e1b1d06a | 2262 | |
4e022ec0 | 2263 | port_idx = simap_get(&ofproto->ofp_requests, netdev_name); |
430dbb14 | 2264 | port_idx = port_idx ? port_idx : UINT16_MAX; |
4e022ec0 | 2265 | |
430dbb14 | 2266 | if (port_idx >= ofproto->max_ports |
fdcea803 GS |
2267 | || ofport_get_usage(ofproto, u16_to_ofp(port_idx)) == LLONG_MAX) { |
2268 | uint16_t lru_ofport = 0, end_port_no = ofproto->alloc_port_no; | |
2269 | long long int last_used_at, lru = LLONG_MAX; | |
e1b1d06a | 2270 | |
e1b1d06a JP |
2271 | /* Search for a free OpenFlow port number. We try not to |
2272 | * immediately reuse them to prevent problems due to old | |
484c8355 BP |
2273 | * flows. |
2274 | * | |
2275 | * We limit the automatically assigned port numbers to the lower half | |
2276 | * of the port range, to reserve the upper half for assignment by | |
2277 | * controllers. */ | |
6033d9d9 | 2278 | for (;;) { |
484c8355 | 2279 | if (++ofproto->alloc_port_no >= MIN(ofproto->max_ports, 32768)) { |
fdcea803 | 2280 | ofproto->alloc_port_no = 1; |
6033d9d9 | 2281 | } |
fdcea803 GS |
2282 | last_used_at = ofport_get_usage(ofproto, |
2283 | u16_to_ofp(ofproto->alloc_port_no)); | |
2284 | if (!last_used_at) { | |
430dbb14 | 2285 | port_idx = ofproto->alloc_port_no; |
6033d9d9 | 2286 | break; |
865b26a4 GS |
2287 | } else if ( last_used_at < time_msec() - 60*60*1000) { |
2288 | /* If the port with ofport 'ofproto->alloc_port_no' was deleted | |
2289 | * more than an hour ago, consider it usable. */ | |
2290 | ofport_remove_usage(ofproto, | |
2291 | u16_to_ofp(ofproto->alloc_port_no)); | |
2292 | port_idx = ofproto->alloc_port_no; | |
2293 | break; | |
fdcea803 GS |
2294 | } else if (last_used_at < lru) { |
2295 | lru = last_used_at; | |
2296 | lru_ofport = ofproto->alloc_port_no; | |
e1b1d06a | 2297 | } |
fdcea803 | 2298 | |
430dbb14 | 2299 | if (ofproto->alloc_port_no == end_port_no) { |
fdcea803 GS |
2300 | if (lru_ofport) { |
2301 | port_idx = lru_ofport; | |
2302 | break; | |
2303 | } | |
6033d9d9 | 2304 | return OFPP_NONE; |
e1b1d06a JP |
2305 | } |
2306 | } | |
2307 | } | |
fdcea803 | 2308 | ofport_set_usage(ofproto, u16_to_ofp(port_idx), LLONG_MAX); |
4e022ec0 | 2309 | return u16_to_ofp(port_idx); |
e1b1d06a JP |
2310 | } |
2311 | ||
2312 | static void | |
fdcea803 | 2313 | dealloc_ofp_port(struct ofproto *ofproto, ofp_port_t ofp_port) |
e1b1d06a | 2314 | { |
430dbb14 | 2315 | if (ofp_to_u16(ofp_port) < ofproto->max_ports) { |
fdcea803 | 2316 | ofport_set_usage(ofproto, ofp_port, time_msec()); |
40fa9417 | 2317 | } |
e1b1d06a JP |
2318 | } |
2319 | ||
fbfa2911 BP |
2320 | /* Opens and returns a netdev for 'ofproto_port' in 'ofproto', or a null |
2321 | * pointer if the netdev cannot be opened. On success, also fills in | |
d7d92203 | 2322 | * '*pp'. */ |
b33951b8 | 2323 | static struct netdev * |
e1b1d06a JP |
2324 | ofport_open(struct ofproto *ofproto, |
2325 | struct ofproto_port *ofproto_port, | |
9e1fd49b | 2326 | struct ofputil_phy_port *pp) |
064af421 BP |
2327 | { |
2328 | enum netdev_flags flags; | |
064af421 | 2329 | struct netdev *netdev; |
064af421 BP |
2330 | int error; |
2331 | ||
18812dff | 2332 | error = netdev_open(ofproto_port->name, ofproto_port->type, &netdev); |
064af421 | 2333 | if (error) { |
94783c7c | 2334 | VLOG_WARN_RL(&rl, "%s: ignoring port %s (%"PRIu32") because netdev %s " |
064af421 | 2335 | "cannot be opened (%s)", |
fbfa2911 | 2336 | ofproto->name, |
abe529af | 2337 | ofproto_port->name, ofproto_port->ofp_port, |
10a89ef0 | 2338 | ofproto_port->name, ovs_strerror(error)); |
064af421 BP |
2339 | return NULL; |
2340 | } | |
2341 | ||
e1b1d06a JP |
2342 | if (ofproto_port->ofp_port == OFPP_NONE) { |
2343 | if (!strcmp(ofproto->name, ofproto_port->name)) { | |
2344 | ofproto_port->ofp_port = OFPP_LOCAL; | |
2345 | } else { | |
2346 | ofproto_port->ofp_port = alloc_ofp_port(ofproto, | |
2347 | ofproto_port->name); | |
2348 | } | |
2349 | } | |
9e1fd49b | 2350 | pp->port_no = ofproto_port->ofp_port; |
74ff3298 | 2351 | netdev_get_etheraddr(netdev, &pp->hw_addr); |
2f2b904f | 2352 | pp->hw_addr64 = eth_addr64_zero; |
9e1fd49b | 2353 | ovs_strlcpy(pp->name, ofproto_port->name, sizeof pp->name); |
064af421 | 2354 | netdev_get_flags(netdev, &flags); |
9e1fd49b BP |
2355 | pp->config = flags & NETDEV_UP ? 0 : OFPUTIL_PC_PORT_DOWN; |
2356 | pp->state = netdev_get_carrier(netdev) ? 0 : OFPUTIL_PS_LINK_DOWN; | |
2357 | netdev_get_features(netdev, &pp->curr, &pp->advertised, | |
2358 | &pp->supported, &pp->peer); | |
cd65125d BP |
2359 | pp->curr_speed = netdev_features_to_bps(pp->curr, 0) / 1000; |
2360 | pp->max_speed = netdev_features_to_bps(pp->supported, 0) / 1000; | |
118c4676 | 2361 | |
b33951b8 | 2362 | return netdev; |
064af421 BP |
2363 | } |
2364 | ||
b33951b8 | 2365 | /* Returns true if most fields of 'a' and 'b' are equal. Differences in name, |
d7d92203 | 2366 | * port number, and 'config' bits other than OFPUTIL_PC_PORT_DOWN are |
b33951b8 BP |
2367 | * disregarded. */ |
2368 | static bool | |
9e1fd49b BP |
2369 | ofport_equal(const struct ofputil_phy_port *a, |
2370 | const struct ofputil_phy_port *b) | |
064af421 | 2371 | { |
9e1fd49b | 2372 | return (eth_addr_equals(a->hw_addr, b->hw_addr) |
2f2b904f | 2373 | && eth_addr64_equals(a->hw_addr64, b->hw_addr64) |
064af421 | 2374 | && a->state == b->state |
9e1fd49b | 2375 | && !((a->config ^ b->config) & OFPUTIL_PC_PORT_DOWN) |
064af421 BP |
2376 | && a->curr == b->curr |
2377 | && a->advertised == b->advertised | |
2378 | && a->supported == b->supported | |
9e1fd49b BP |
2379 | && a->peer == b->peer |
2380 | && a->curr_speed == b->curr_speed | |
2381 | && a->max_speed == b->max_speed); | |
064af421 BP |
2382 | } |
2383 | ||
b33951b8 BP |
2384 | /* Adds an ofport to 'p' initialized based on the given 'netdev' and 'opp'. |
2385 | * The caller must ensure that 'p' does not have a conflicting ofport (that is, | |
2386 | * one with the same name or port number). */ | |
01c77073 | 2387 | static int |
b33951b8 | 2388 | ofport_install(struct ofproto *p, |
9e1fd49b | 2389 | struct netdev *netdev, const struct ofputil_phy_port *pp) |
064af421 | 2390 | { |
b33951b8 BP |
2391 | const char *netdev_name = netdev_get_name(netdev); |
2392 | struct ofport *ofport; | |
abe529af | 2393 | int error; |
72b06300 | 2394 | |
b33951b8 | 2395 | /* Create ofport. */ |
abe529af BP |
2396 | ofport = p->ofproto_class->port_alloc(); |
2397 | if (!ofport) { | |
2398 | error = ENOMEM; | |
2399 | goto error; | |
2400 | } | |
0f7d71a5 | 2401 | ofport->ofproto = p; |
b33951b8 | 2402 | ofport->netdev = netdev; |
61501798 | 2403 | ofport->change_seq = netdev_get_change_seq(netdev); |
9e1fd49b BP |
2404 | ofport->pp = *pp; |
2405 | ofport->ofp_port = pp->port_no; | |
65e0be10 | 2406 | ofport->created = time_msec(); |
b33951b8 BP |
2407 | |
2408 | /* Add port to 'p'. */ | |
4e022ec0 | 2409 | hmap_insert(&p->ports, &ofport->hmap_node, |
f9c0c3ec | 2410 | hash_ofp_port(ofport->ofp_port)); |
72b06300 | 2411 | shash_add(&p->port_by_name, netdev_name, ofport); |
abe529af | 2412 | |
ada3428f | 2413 | update_mtu(p, ofport); |
9197df76 | 2414 | |
abe529af BP |
2415 | /* Let the ofproto_class initialize its private data. */ |
2416 | error = p->ofproto_class->port_construct(ofport); | |
2417 | if (error) { | |
2418 | goto error; | |
2419 | } | |
2a6f78e0 | 2420 | connmgr_send_port_status(p->connmgr, NULL, pp, OFPPR_ADD); |
01c77073 | 2421 | return 0; |
abe529af BP |
2422 | |
2423 | error: | |
2424 | VLOG_WARN_RL(&rl, "%s: could not add port %s (%s)", | |
10a89ef0 | 2425 | p->name, netdev_name, ovs_strerror(error)); |
abe529af BP |
2426 | if (ofport) { |
2427 | ofport_destroy__(ofport); | |
2428 | } else { | |
2429 | netdev_close(netdev); | |
72b06300 | 2430 | } |
01c77073 | 2431 | return error; |
064af421 BP |
2432 | } |
2433 | ||
b33951b8 | 2434 | /* Removes 'ofport' from 'p' and destroys it. */ |
064af421 | 2435 | static void |
0f7d71a5 | 2436 | ofport_remove(struct ofport *ofport) |
064af421 | 2437 | { |
0670b5d0 | 2438 | struct ofproto *p = ofport->ofproto; |
3a414a0a | 2439 | bool is_mtu_overridden = ofport_is_mtu_overridden(p, ofport); |
0670b5d0 | 2440 | |
2a6f78e0 | 2441 | connmgr_send_port_status(ofport->ofproto->connmgr, NULL, &ofport->pp, |
fa066f01 | 2442 | OFPPR_DELETE); |
9aad5a5a | 2443 | ofport_destroy(ofport, true); |
3a414a0a | 2444 | if (!is_mtu_overridden) { |
0670b5d0 | 2445 | update_mtu_ofproto(p); |
2446 | } | |
b33951b8 BP |
2447 | } |
2448 | ||
2449 | /* If 'ofproto' contains an ofport named 'name', removes it from 'ofproto' and | |
2450 | * destroys it. */ | |
2451 | static void | |
2452 | ofport_remove_with_name(struct ofproto *ofproto, const char *name) | |
2453 | { | |
2454 | struct ofport *port = shash_find_data(&ofproto->port_by_name, name); | |
2455 | if (port) { | |
0f7d71a5 | 2456 | ofport_remove(port); |
b33951b8 BP |
2457 | } |
2458 | } | |
2459 | ||
9e1fd49b | 2460 | /* Updates 'port' with new 'pp' description. |
b33951b8 BP |
2461 | * |
2462 | * Does not handle a name or port number change. The caller must implement | |
2463 | * such a change as a delete followed by an add. */ | |
2464 | static void | |
9e1fd49b | 2465 | ofport_modified(struct ofport *port, struct ofputil_phy_port *pp) |
b33951b8 | 2466 | { |
74ff3298 | 2467 | port->pp.hw_addr = pp->hw_addr; |
2f2b904f | 2468 | port->pp.hw_addr64 = pp->hw_addr64; |
9e1fd49b BP |
2469 | port->pp.config = ((port->pp.config & ~OFPUTIL_PC_PORT_DOWN) |
2470 | | (pp->config & OFPUTIL_PC_PORT_DOWN)); | |
53fd5c7c BP |
2471 | port->pp.state = ((port->pp.state & ~OFPUTIL_PS_LINK_DOWN) |
2472 | | (pp->state & OFPUTIL_PS_LINK_DOWN)); | |
9e1fd49b BP |
2473 | port->pp.curr = pp->curr; |
2474 | port->pp.advertised = pp->advertised; | |
2475 | port->pp.supported = pp->supported; | |
2476 | port->pp.peer = pp->peer; | |
2477 | port->pp.curr_speed = pp->curr_speed; | |
2478 | port->pp.max_speed = pp->max_speed; | |
064af421 BP |
2479 | } |
2480 | ||
5a2dfd47 JP |
2481 | /* Update OpenFlow 'state' in 'port' and notify controller. */ |
2482 | void | |
9e1fd49b | 2483 | ofproto_port_set_state(struct ofport *port, enum ofputil_port_state state) |
5a2dfd47 | 2484 | { |
9e1fd49b BP |
2485 | if (port->pp.state != state) { |
2486 | port->pp.state = state; | |
2a6f78e0 BP |
2487 | connmgr_send_port_status(port->ofproto->connmgr, NULL, |
2488 | &port->pp, OFPPR_MODIFY); | |
5a2dfd47 JP |
2489 | } |
2490 | } | |
2491 | ||
abe529af | 2492 | void |
4e022ec0 | 2493 | ofproto_port_unregister(struct ofproto *ofproto, ofp_port_t ofp_port) |
e7934396 | 2494 | { |
abe529af BP |
2495 | struct ofport *port = ofproto_get_port(ofproto, ofp_port); |
2496 | if (port) { | |
b308140a JP |
2497 | if (port->ofproto->ofproto_class->set_stp_port) { |
2498 | port->ofproto->ofproto_class->set_stp_port(port, NULL); | |
2499 | } | |
9efd308e DV |
2500 | if (port->ofproto->ofproto_class->set_rstp_port) { |
2501 | port->ofproto->ofproto_class->set_rstp_port(port, NULL); | |
2502 | } | |
abe529af | 2503 | if (port->ofproto->ofproto_class->set_cfm) { |
a5610457 | 2504 | port->ofproto->ofproto_class->set_cfm(port, NULL); |
abe529af BP |
2505 | } |
2506 | if (port->ofproto->ofproto_class->bundle_remove) { | |
2507 | port->ofproto->ofproto_class->bundle_remove(port); | |
e7934396 BP |
2508 | } |
2509 | } | |
2510 | } | |
2511 | ||
2512 | static void | |
abe529af | 2513 | ofport_destroy__(struct ofport *port) |
e7934396 | 2514 | { |
abe529af BP |
2515 | struct ofproto *ofproto = port->ofproto; |
2516 | const char *name = netdev_get_name(port->netdev); | |
fa066f01 | 2517 | |
abe529af | 2518 | hmap_remove(&ofproto->ports, &port->hmap_node); |
5978c2e3 | 2519 | shash_find_and_delete(&ofproto->port_by_name, name); |
fa066f01 | 2520 | |
abe529af BP |
2521 | netdev_close(port->netdev); |
2522 | ofproto->ofproto_class->port_dealloc(port); | |
e7934396 BP |
2523 | } |
2524 | ||
064af421 | 2525 | static void |
9aad5a5a | 2526 | ofport_destroy(struct ofport *port, bool del) |
064af421 | 2527 | { |
fa066f01 | 2528 | if (port) { |
e1b1d06a | 2529 | dealloc_ofp_port(port->ofproto, port->ofp_port); |
9aad5a5a | 2530 | port->ofproto->ofproto_class->port_destruct(port, del); |
abe529af BP |
2531 | ofport_destroy__(port); |
2532 | } | |
064af421 BP |
2533 | } |
2534 | ||
abe529af | 2535 | struct ofport * |
4e022ec0 | 2536 | ofproto_get_port(const struct ofproto *ofproto, ofp_port_t ofp_port) |
ca0f572c BP |
2537 | { |
2538 | struct ofport *port; | |
2539 | ||
f9c0c3ec | 2540 | HMAP_FOR_EACH_IN_BUCKET (port, hmap_node, hash_ofp_port(ofp_port), |
4e022ec0 | 2541 | &ofproto->ports) { |
abe529af | 2542 | if (port->ofp_port == ofp_port) { |
ca0f572c BP |
2543 | return port; |
2544 | } | |
2545 | } | |
2546 | return NULL; | |
2547 | } | |
2548 | ||
fdcea803 GS |
2549 | static long long int |
2550 | ofport_get_usage(const struct ofproto *ofproto, ofp_port_t ofp_port) | |
2551 | { | |
2552 | struct ofport_usage *usage; | |
2553 | ||
2554 | HMAP_FOR_EACH_IN_BUCKET (usage, hmap_node, hash_ofp_port(ofp_port), | |
2555 | &ofproto->ofport_usage) { | |
2556 | if (usage->ofp_port == ofp_port) { | |
2557 | return usage->last_used; | |
2558 | } | |
2559 | } | |
2560 | return 0; | |
2561 | } | |
2562 | ||
2563 | static void | |
2564 | ofport_set_usage(struct ofproto *ofproto, ofp_port_t ofp_port, | |
2565 | long long int last_used) | |
2566 | { | |
2567 | struct ofport_usage *usage; | |
2568 | HMAP_FOR_EACH_IN_BUCKET (usage, hmap_node, hash_ofp_port(ofp_port), | |
2569 | &ofproto->ofport_usage) { | |
2570 | if (usage->ofp_port == ofp_port) { | |
2571 | usage->last_used = last_used; | |
2572 | return; | |
2573 | } | |
2574 | } | |
2575 | ovs_assert(last_used == LLONG_MAX); | |
2576 | ||
2577 | usage = xmalloc(sizeof *usage); | |
2578 | usage->ofp_port = ofp_port; | |
2579 | usage->last_used = last_used; | |
2580 | hmap_insert(&ofproto->ofport_usage, &usage->hmap_node, | |
2581 | hash_ofp_port(ofp_port)); | |
2582 | } | |
2583 | ||
865b26a4 GS |
2584 | static void |
2585 | ofport_remove_usage(struct ofproto *ofproto, ofp_port_t ofp_port) | |
2586 | { | |
2587 | struct ofport_usage *usage; | |
2588 | HMAP_FOR_EACH_IN_BUCKET (usage, hmap_node, hash_ofp_port(ofp_port), | |
2589 | &ofproto->ofport_usage) { | |
2590 | if (usage->ofp_port == ofp_port) { | |
2591 | hmap_remove(&ofproto->ofport_usage, &usage->hmap_node); | |
2592 | free(usage); | |
2593 | break; | |
2594 | } | |
2595 | } | |
2596 | } | |
2597 | ||
6527c598 PS |
2598 | int |
2599 | ofproto_port_get_stats(const struct ofport *port, struct netdev_stats *stats) | |
2600 | { | |
2601 | struct ofproto *ofproto = port->ofproto; | |
2602 | int error; | |
2603 | ||
2604 | if (ofproto->ofproto_class->port_get_stats) { | |
2605 | error = ofproto->ofproto_class->port_get_stats(port, stats); | |
2606 | } else { | |
2607 | error = EOPNOTSUPP; | |
2608 | } | |
2609 | ||
2610 | return error; | |
2611 | } | |
2612 | ||
01c77073 | 2613 | static int |
b33951b8 | 2614 | update_port(struct ofproto *ofproto, const char *name) |
064af421 | 2615 | { |
abe529af | 2616 | struct ofproto_port ofproto_port; |
9e1fd49b | 2617 | struct ofputil_phy_port pp; |
b33951b8 BP |
2618 | struct netdev *netdev; |
2619 | struct ofport *port; | |
01c77073 | 2620 | int error = 0; |
064af421 BP |
2621 | |
2622 | COVERAGE_INC(ofproto_update_port); | |
c874dc6d | 2623 | |
b33951b8 | 2624 | /* Fetch 'name''s location and properties from the datapath. */ |
abe529af | 2625 | netdev = (!ofproto_port_query_by_name(ofproto, name, &ofproto_port) |
fbfa2911 | 2626 | ? ofport_open(ofproto, &ofproto_port, &pp) |
b33951b8 | 2627 | : NULL); |
4e022ec0 | 2628 | |
b33951b8 | 2629 | if (netdev) { |
abe529af | 2630 | port = ofproto_get_port(ofproto, ofproto_port.ofp_port); |
b33951b8 | 2631 | if (port && !strcmp(netdev_get_name(port->netdev), name)) { |
e65942a0 BP |
2632 | struct netdev *old_netdev = port->netdev; |
2633 | ||
b33951b8 | 2634 | /* 'name' hasn't changed location. Any properties changed? */ |
f73b83fd LS |
2635 | bool port_changed = !ofport_equal(&port->pp, &pp); |
2636 | if (port_changed) { | |
9e1fd49b | 2637 | ofport_modified(port, &pp); |
abe529af BP |
2638 | } |
2639 | ||
ada3428f | 2640 | update_mtu(ofproto, port); |
9197df76 | 2641 | |
e65942a0 BP |
2642 | /* Install the newly opened netdev in case it has changed. |
2643 | * Don't close the old netdev yet in case port_modified has to | |
2644 | * remove a retained reference to it.*/ | |
abe529af | 2645 | port->netdev = netdev; |
61501798 | 2646 | port->change_seq = netdev_get_change_seq(netdev); |
abe529af BP |
2647 | |
2648 | if (port->ofproto->ofproto_class->port_modified) { | |
2649 | port->ofproto->ofproto_class->port_modified(port); | |
b33951b8 | 2650 | } |
e65942a0 | 2651 | |
f73b83fd LS |
2652 | /* Send status update, if any port property changed */ |
2653 | if (port_changed) { | |
2654 | connmgr_send_port_status(port->ofproto->connmgr, NULL, | |
2655 | &port->pp, OFPPR_MODIFY); | |
2656 | } | |
2657 | ||
e65942a0 | 2658 | netdev_close(old_netdev); |
b33951b8 BP |
2659 | } else { |
2660 | /* If 'port' is nonnull then its name differs from 'name' and thus | |
2661 | * we should delete it. If we think there's a port named 'name' | |
2662 | * then its port number must be wrong now so delete it too. */ | |
2663 | if (port) { | |
0f7d71a5 | 2664 | ofport_remove(port); |
b33951b8 BP |
2665 | } |
2666 | ofport_remove_with_name(ofproto, name); | |
01c77073 | 2667 | error = ofport_install(ofproto, netdev, &pp); |
c874dc6d | 2668 | } |
b33951b8 BP |
2669 | } else { |
2670 | /* Any port named 'name' is gone now. */ | |
2671 | ofport_remove_with_name(ofproto, name); | |
c874dc6d | 2672 | } |
abe529af | 2673 | ofproto_port_destroy(&ofproto_port); |
01c77073 BP |
2674 | |
2675 | return error; | |
064af421 BP |
2676 | } |
2677 | ||
2678 | static int | |
2679 | init_ports(struct ofproto *p) | |
2680 | { | |
abe529af BP |
2681 | struct ofproto_port_dump dump; |
2682 | struct ofproto_port ofproto_port; | |
e1b1d06a | 2683 | struct shash_node *node, *next; |
abe529af BP |
2684 | |
2685 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { | |
e1b1d06a JP |
2686 | const char *name = ofproto_port.name; |
2687 | ||
2688 | if (shash_find(&p->port_by_name, name)) { | |
fbfa2911 | 2689 | VLOG_WARN_RL(&rl, "%s: ignoring duplicate device %s in datapath", |
e1b1d06a | 2690 | p->name, name); |
abe529af | 2691 | } else { |
9e1fd49b | 2692 | struct ofputil_phy_port pp; |
b33951b8 BP |
2693 | struct netdev *netdev; |
2694 | ||
e1b1d06a JP |
2695 | /* Check if an OpenFlow port number had been requested. */ |
2696 | node = shash_find(&init_ofp_ports, name); | |
2697 | if (node) { | |
2698 | const struct iface_hint *iface_hint = node->data; | |
4e022ec0 AW |
2699 | simap_put(&p->ofp_requests, name, |
2700 | ofp_to_u16(iface_hint->ofp_port)); | |
e1b1d06a JP |
2701 | } |
2702 | ||
fbfa2911 | 2703 | netdev = ofport_open(p, &ofproto_port, &pp); |
b33951b8 | 2704 | if (netdev) { |
9e1fd49b | 2705 | ofport_install(p, netdev, &pp); |
430dbb14 | 2706 | if (ofp_to_u16(ofproto_port.ofp_port) < p->max_ports) { |
7c35397c | 2707 | p->alloc_port_no = MAX(p->alloc_port_no, |
430dbb14 | 2708 | ofp_to_u16(ofproto_port.ofp_port)); |
7c35397c | 2709 | } |
064af421 BP |
2710 | } |
2711 | } | |
2712 | } | |
b0ec0f27 | 2713 | |
e1b1d06a | 2714 | SHASH_FOR_EACH_SAFE(node, next, &init_ofp_ports) { |
4f9e08a5 | 2715 | struct iface_hint *iface_hint = node->data; |
e1b1d06a JP |
2716 | |
2717 | if (!strcmp(iface_hint->br_name, p->name)) { | |
2718 | free(iface_hint->br_name); | |
2719 | free(iface_hint->br_type); | |
4f9e08a5 | 2720 | free(iface_hint); |
e1b1d06a JP |
2721 | shash_delete(&init_ofp_ports, node); |
2722 | } | |
2723 | } | |
2724 | ||
064af421 BP |
2725 | return 0; |
2726 | } | |
9197df76 | 2727 | |
3a414a0a | 2728 | static bool |
8c319e8b | 2729 | ofport_is_internal_or_patch(const struct ofproto *p, const struct ofport *port) |
0670b5d0 | 2730 | { |
c381bca5 BP |
2731 | const char *netdev_type = netdev_get_type(port->netdev); |
2732 | return !strcmp(netdev_type, ofproto_port_open_type(p, "internal")) || | |
2733 | !strcmp(netdev_type, ofproto_port_open_type(p, "patch")); | |
0670b5d0 | 2734 | } |
2735 | ||
8c319e8b NS |
2736 | /* If 'port' is internal or patch and if the user didn't explicitly specify an |
2737 | * mtu through the database, we have to override it. */ | |
3a414a0a DDP |
2738 | static bool |
2739 | ofport_is_mtu_overridden(const struct ofproto *p, const struct ofport *port) | |
2740 | { | |
8c319e8b | 2741 | return ofport_is_internal_or_patch(p, port) |
3a414a0a DDP |
2742 | && !netdev_mtu_is_user_config(port->netdev); |
2743 | } | |
2744 | ||
2745 | /* Find the minimum MTU of all non-overridden devices attached to 'p'. | |
9197df76 JP |
2746 | * Returns ETH_PAYLOAD_MAX or the minimum of the ports. */ |
2747 | static int | |
2748 | find_min_mtu(struct ofproto *p) | |
2749 | { | |
2750 | struct ofport *ofport; | |
2751 | int mtu = 0; | |
2752 | ||
2753 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
2754 | struct netdev *netdev = ofport->netdev; | |
2755 | int dev_mtu; | |
2756 | ||
3a414a0a DDP |
2757 | /* Skip any overridden port, since that's what we're trying to set. */ |
2758 | if (ofport_is_mtu_overridden(p, ofport)) { | |
9197df76 JP |
2759 | continue; |
2760 | } | |
2761 | ||
2762 | if (netdev_get_mtu(netdev, &dev_mtu)) { | |
2763 | continue; | |
2764 | } | |
2765 | if (!mtu || dev_mtu < mtu) { | |
2766 | mtu = dev_mtu; | |
2767 | } | |
2768 | } | |
2769 | ||
2770 | return mtu ? mtu: ETH_PAYLOAD_MAX; | |
2771 | } | |
2772 | ||
3a414a0a DDP |
2773 | /* Update MTU of all overridden devices on 'p' to the minimum of the |
2774 | * non-overridden ports in event of 'port' added or changed. */ | |
9197df76 | 2775 | static void |
ada3428f | 2776 | update_mtu(struct ofproto *p, struct ofport *port) |
9197df76 | 2777 | { |
ada3428f | 2778 | struct netdev *netdev = port->netdev; |
0670b5d0 | 2779 | int dev_mtu; |
ada3428f PS |
2780 | |
2781 | if (netdev_get_mtu(netdev, &dev_mtu)) { | |
2782 | port->mtu = 0; | |
2783 | return; | |
2784 | } | |
3a414a0a | 2785 | if (ofport_is_mtu_overridden(p, port)) { |
7478b5a2 | 2786 | if (dev_mtu > p->min_mtu) { |
3a414a0a DDP |
2787 | if (!netdev_set_mtu(port->netdev, p->min_mtu)) { |
2788 | dev_mtu = p->min_mtu; | |
2789 | } | |
ada3428f PS |
2790 | } |
2791 | port->mtu = dev_mtu; | |
2792 | return; | |
2793 | } | |
2794 | ||
ada3428f | 2795 | port->mtu = dev_mtu; |
3a414a0a DDP |
2796 | /* For non-overridden port find new min mtu. */ |
2797 | ||
0670b5d0 | 2798 | update_mtu_ofproto(p); |
2799 | } | |
2800 | ||
2801 | static void | |
2802 | update_mtu_ofproto(struct ofproto *p) | |
2803 | { | |
0670b5d0 | 2804 | struct ofport *ofport; |
2805 | int old_min = p->min_mtu; | |
2806 | ||
ada3428f PS |
2807 | p->min_mtu = find_min_mtu(p); |
2808 | if (p->min_mtu == old_min) { | |
2809 | return; | |
2810 | } | |
9197df76 JP |
2811 | |
2812 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
2813 | struct netdev *netdev = ofport->netdev; | |
2814 | ||
3a414a0a | 2815 | if (ofport_is_mtu_overridden(p, ofport)) { |
ada3428f PS |
2816 | if (!netdev_set_mtu(netdev, p->min_mtu)) { |
2817 | ofport->mtu = p->min_mtu; | |
2818 | } | |
9197df76 JP |
2819 | } |
2820 | } | |
2821 | } | |
064af421 | 2822 | \f |
f416c8d6 JR |
2823 | static void |
2824 | ofproto_rule_destroy__(struct rule *rule) | |
2825 | OVS_NO_THREAD_SAFETY_ANALYSIS | |
2826 | { | |
2827 | cls_rule_destroy(CONST_CAST(struct cls_rule *, &rule->cr)); | |
2828 | rule_actions_destroy(rule_get_actions(rule)); | |
2829 | ovs_mutex_destroy(&rule->mutex); | |
2830 | rule->ofproto->ofproto_class->rule_dealloc(rule); | |
2831 | } | |
2832 | ||
2833 | static void | |
2834 | rule_destroy_cb(struct rule *rule) | |
f695ebfa | 2835 | OVS_NO_THREAD_SAFETY_ANALYSIS |
f416c8d6 | 2836 | { |
f695ebfa JR |
2837 | /* Send rule removed if needed. */ |
2838 | if (rule->flags & OFPUTIL_FF_SEND_FLOW_REM | |
2839 | && rule->removed_reason != OVS_OFPRR_NONE | |
2840 | && !rule_is_hidden(rule)) { | |
2841 | ofproto_rule_send_removed(rule); | |
2842 | } | |
f416c8d6 | 2843 | rule->ofproto->ofproto_class->rule_destruct(rule); |
5c7c16d8 YHW |
2844 | mf_vl_mff_unref(&rule->ofproto->vl_mff_map, rule->match_tlv_bitmap); |
2845 | mf_vl_mff_unref(&rule->ofproto->vl_mff_map, rule->ofpacts_tlv_bitmap); | |
f416c8d6 JR |
2846 | ofproto_rule_destroy__(rule); |
2847 | } | |
2848 | ||
a2143702 BP |
2849 | void |
2850 | ofproto_rule_ref(struct rule *rule) | |
064af421 | 2851 | { |
1eae3d33 | 2852 | if (rule) { |
37bec3d3 | 2853 | ovs_refcount_ref(&rule->ref_count); |
a2143702 BP |
2854 | } |
2855 | } | |
2856 | ||
f5d16e55 JR |
2857 | bool |
2858 | ofproto_rule_try_ref(struct rule *rule) | |
2859 | { | |
2860 | if (rule) { | |
2861 | return ovs_refcount_try_ref_rcu(&rule->ref_count); | |
2862 | } | |
2863 | return false; | |
2864 | } | |
2865 | ||
f416c8d6 JR |
2866 | /* Decrements 'rule''s ref_count and schedules 'rule' to be destroyed if the |
2867 | * ref_count reaches 0. | |
2868 | * | |
2869 | * Use of RCU allows short term use (between RCU quiescent periods) without | |
2870 | * keeping a reference. A reference must be taken if the rule needs to | |
2871 | * stay around accross the RCU quiescent periods. */ | |
a2143702 BP |
2872 | void |
2873 | ofproto_rule_unref(struct rule *rule) | |
2874 | { | |
24f83812 | 2875 | if (rule && ovs_refcount_unref_relaxed(&rule->ref_count) == 1) { |
2c7ee524 | 2876 | ovs_assert(rule->state != RULE_INSERTED); |
f416c8d6 | 2877 | ovsrcu_postpone(rule_destroy_cb, rule); |
1eae3d33 | 2878 | } |
064af421 BP |
2879 | } |
2880 | ||
39c94593 JR |
2881 | static void |
2882 | remove_rule_rcu__(struct rule *rule) | |
2883 | OVS_REQUIRES(ofproto_mutex) | |
2884 | { | |
2885 | struct ofproto *ofproto = rule->ofproto; | |
2886 | struct oftable *table = &ofproto->tables[rule->table_id]; | |
2887 | ||
44e0c35d | 2888 | ovs_assert(!cls_rule_visible_in_version(&rule->cr, OVS_VERSION_MAX)); |
46ab60bf | 2889 | classifier_remove_assert(&table->cls, &rule->cr); |
1fc71871 JR |
2890 | if (ofproto->ofproto_class->rule_delete) { |
2891 | ofproto->ofproto_class->rule_delete(rule); | |
2892 | } | |
39c94593 JR |
2893 | ofproto_rule_unref(rule); |
2894 | } | |
2895 | ||
2896 | static void | |
2897 | remove_rule_rcu(struct rule *rule) | |
2898 | OVS_EXCLUDED(ofproto_mutex) | |
2899 | { | |
2900 | ovs_mutex_lock(&ofproto_mutex); | |
2901 | remove_rule_rcu__(rule); | |
2902 | ovs_mutex_unlock(&ofproto_mutex); | |
2903 | } | |
2904 | ||
2905 | /* Removes and deletes rules from a NULL-terminated array of rule pointers. */ | |
2906 | static void | |
2907 | remove_rules_rcu(struct rule **rules) | |
2908 | OVS_EXCLUDED(ofproto_mutex) | |
2909 | { | |
2910 | struct rule **orig_rules = rules; | |
2911 | ||
2912 | if (*rules) { | |
2913 | struct ofproto *ofproto = rules[0]->ofproto; | |
2914 | unsigned long tables[BITMAP_N_LONGS(256)]; | |
2915 | struct rule *rule; | |
2916 | size_t table_id; | |
2917 | ||
2918 | memset(tables, 0, sizeof tables); | |
2919 | ||
2920 | ovs_mutex_lock(&ofproto_mutex); | |
2921 | while ((rule = *rules++)) { | |
2922 | /* Defer once for each new table. This defers the subtable cleanup | |
2923 | * until later, so that when removing large number of flows the | |
2924 | * operation is faster. */ | |
2925 | if (!bitmap_is_set(tables, rule->table_id)) { | |
2926 | struct classifier *cls = &ofproto->tables[rule->table_id].cls; | |
2927 | ||
2928 | bitmap_set1(tables, rule->table_id); | |
2929 | classifier_defer(cls); | |
2930 | } | |
2931 | remove_rule_rcu__(rule); | |
2932 | } | |
2933 | ||
2934 | BITMAP_FOR_EACH_1(table_id, 256, tables) { | |
2935 | struct classifier *cls = &ofproto->tables[table_id].cls; | |
2936 | ||
2937 | classifier_publish(cls); | |
2938 | } | |
2939 | ovs_mutex_unlock(&ofproto_mutex); | |
2940 | } | |
2941 | ||
2942 | free(orig_rules); | |
2943 | } | |
2944 | ||
809c7548 RW |
2945 | void |
2946 | ofproto_group_ref(struct ofgroup *group) | |
2947 | { | |
2948 | if (group) { | |
2949 | ovs_refcount_ref(&group->ref_count); | |
2950 | } | |
2951 | } | |
2952 | ||
db88b35c JR |
2953 | bool |
2954 | ofproto_group_try_ref(struct ofgroup *group) | |
2955 | { | |
2956 | if (group) { | |
2957 | return ovs_refcount_try_ref_rcu(&group->ref_count); | |
2958 | } | |
2959 | return false; | |
2960 | } | |
2961 | ||
2962 | static void | |
2963 | group_destroy_cb(struct ofgroup *group) | |
2964 | { | |
2965 | group->ofproto->ofproto_class->group_destruct(group); | |
e8dba719 JR |
2966 | ofputil_group_properties_destroy(CONST_CAST(struct ofputil_group_props *, |
2967 | &group->props)); | |
db88b35c JR |
2968 | ofputil_bucket_list_destroy(CONST_CAST(struct ovs_list *, |
2969 | &group->buckets)); | |
2970 | group->ofproto->ofproto_class->group_dealloc(group); | |
2971 | } | |
2972 | ||
809c7548 RW |
2973 | void |
2974 | ofproto_group_unref(struct ofgroup *group) | |
cc099268 | 2975 | OVS_NO_THREAD_SAFETY_ANALYSIS |
809c7548 | 2976 | { |
db88b35c | 2977 | if (group && ovs_refcount_unref_relaxed(&group->ref_count) == 1) { |
fe59694b | 2978 | ovs_assert(rule_collection_n(&group->rules) == 0); |
db88b35c | 2979 | ovsrcu_postpone(group_destroy_cb, group); |
809c7548 RW |
2980 | } |
2981 | } | |
2982 | ||
5d08a275 JR |
2983 | static void |
2984 | remove_group_rcu__(struct ofgroup *group) | |
2985 | OVS_REQUIRES(ofproto_mutex) | |
2986 | { | |
2987 | struct ofproto *ofproto = group->ofproto; | |
2988 | ||
2989 | ovs_assert(!versions_visible_in_version(&group->versions, OVS_VERSION_MAX)); | |
2990 | ||
2991 | cmap_remove(&ofproto->groups, &group->cmap_node, | |
2992 | hash_int(group->group_id, 0)); | |
2993 | ofproto_group_unref(group); | |
2994 | } | |
2995 | ||
2996 | static void | |
2997 | remove_group_rcu(struct ofgroup *group) | |
2998 | OVS_EXCLUDED(ofproto_mutex) | |
2999 | { | |
3000 | ovs_mutex_lock(&ofproto_mutex); | |
3001 | remove_group_rcu__(group); | |
3002 | ovs_mutex_unlock(&ofproto_mutex); | |
3003 | } | |
3004 | ||
3005 | /* Removes and deletes groups from a NULL-terminated array of group | |
3006 | * pointers. */ | |
3007 | static void | |
3008 | remove_groups_rcu(struct ofgroup **groups) | |
3009 | OVS_EXCLUDED(ofproto_mutex) | |
3010 | { | |
3011 | ovs_mutex_lock(&ofproto_mutex); | |
3012 | for (struct ofgroup **g = groups; *g; g++) { | |
3013 | remove_group_rcu__(*g); | |
3014 | } | |
3015 | ovs_mutex_unlock(&ofproto_mutex); | |
3016 | free(groups); | |
3017 | } | |
3018 | ||
076caa2f JR |
3019 | static bool ofproto_fix_meter_action(const struct ofproto *, |
3020 | struct ofpact_meter *); | |
65efd2ab | 3021 | |
206ddb9a JP |
3022 | static bool ofproto_fix_controller_action(const struct ofproto *, |
3023 | struct ofpact_controller *); | |
3024 | ||
dc723c44 JR |
3025 | /* Creates and returns a new 'struct rule_actions', whose actions are a copy |
3026 | * of from the 'ofpacts_len' bytes of 'ofpacts'. */ | |
3027 | const struct rule_actions * | |
4c7562c5 | 3028 | rule_actions_create(const struct ofpact *ofpacts, size_t ofpacts_len) |
6f00e29b BP |
3029 | { |
3030 | struct rule_actions *actions; | |
3031 | ||
dc723c44 | 3032 | actions = xmalloc(sizeof *actions + ofpacts_len); |
6f00e29b | 3033 | actions->ofpacts_len = ofpacts_len; |
dc723c44 | 3034 | memcpy(actions->ofpacts, ofpacts, ofpacts_len); |
cc099268 JR |
3035 | actions->has_meter = ofpacts_get_meter(ofpacts, ofpacts_len) != 0; |
3036 | actions->has_groups = | |
3037 | (ofpact_find_type_flattened(ofpacts, OFPACT_GROUP, | |
3038 | ofpact_end(ofpacts, ofpacts_len)) | |
3039 | != NULL); | |
35f48b8b BP |
3040 | actions->has_learn_with_delete = (next_learn_with_delete(actions, NULL) |
3041 | != NULL); | |
3042 | ||
6f00e29b BP |
3043 | return actions; |
3044 | } | |
3045 | ||
dc723c44 | 3046 | /* Free the actions after the RCU quiescent period is reached. */ |
6f00e29b | 3047 | void |
dc723c44 | 3048 | rule_actions_destroy(const struct rule_actions *actions) |
6f00e29b | 3049 | { |
06a0f3e2 | 3050 | if (actions) { |
dc723c44 | 3051 | ovsrcu_postpone(free, CONST_CAST(struct rule_actions *, actions)); |
6f00e29b BP |
3052 | } |
3053 | } | |
3054 | ||
bcf84111 | 3055 | /* Returns true if 'rule' has an OpenFlow OFPAT_OUTPUT or OFPAT_ENQUEUE action |
f25d0cf3 | 3056 | * that outputs to 'port' (output to OFPP_FLOOD and OFPP_ALL doesn't count). */ |
cdbdeeda | 3057 | bool |
4e022ec0 | 3058 | ofproto_rule_has_out_port(const struct rule *rule, ofp_port_t port) |
15aaf599 | 3059 | OVS_REQUIRES(ofproto_mutex) |
064af421 | 3060 | { |
06a0f3e2 BP |
3061 | if (port == OFPP_ANY) { |
3062 | return true; | |
3063 | } else { | |
3064 | const struct rule_actions *actions = rule_get_actions(rule); | |
3065 | return ofpacts_output_to_port(actions->ofpacts, | |
3066 | actions->ofpacts_len, port); | |
3067 | } | |
064af421 BP |
3068 | } |
3069 | ||
7395c052 | 3070 | /* Returns true if 'rule' has group and equals group_id. */ |
74e79b7c | 3071 | static bool |
7395c052 | 3072 | ofproto_rule_has_out_group(const struct rule *rule, uint32_t group_id) |
15aaf599 | 3073 | OVS_REQUIRES(ofproto_mutex) |
7395c052 | 3074 | { |
06a0f3e2 BP |
3075 | if (group_id == OFPG_ANY) { |
3076 | return true; | |
3077 | } else { | |
3078 | const struct rule_actions *actions = rule_get_actions(rule); | |
3079 | return ofpacts_output_to_group(actions->ofpacts, | |
3080 | actions->ofpacts_len, group_id); | |
3081 | } | |
7395c052 NZ |
3082 | } |
3083 | ||
adcf00ba | 3084 | static bool |
834fe5cb | 3085 | rule_is_readonly(const struct rule *rule) |
5c67e4af | 3086 | { |
834fe5cb BP |
3087 | const struct oftable *table = &rule->ofproto->tables[rule->table_id]; |
3088 | return (table->flags & OFTABLE_READONLY) != 0; | |
5c67e4af | 3089 | } |
fa066f01 | 3090 | \f |
35f48b8b BP |
3091 | static uint32_t |
3092 | hash_learned_cookie(ovs_be64 cookie_, uint8_t table_id) | |
3093 | { | |
3094 | uint64_t cookie = (OVS_FORCE uint64_t) cookie_; | |
3095 | return hash_3words(cookie, cookie >> 32, table_id); | |
3096 | } | |
3097 | ||
3098 | static void | |
3099 | learned_cookies_update_one__(struct ofproto *ofproto, | |
3100 | const struct ofpact_learn *learn, | |
ca6ba700 | 3101 | int delta, struct ovs_list *dead_cookies) |
35f48b8b BP |
3102 | OVS_REQUIRES(ofproto_mutex) |
3103 | { | |
3104 | uint32_t hash = hash_learned_cookie(learn->cookie, learn->table_id); | |
3105 | struct learned_cookie *c; | |
3106 | ||
fa37affa | 3107 | HMAP_FOR_EACH_WITH_HASH (c, hmap_node, hash, &ofproto->learned_cookies) { |
35f48b8b BP |
3108 | if (c->cookie == learn->cookie && c->table_id == learn->table_id) { |
3109 | c->n += delta; | |
3110 | ovs_assert(c->n >= 0); | |
3111 | ||
3112 | if (!c->n) { | |
fa37affa BP |
3113 | hmap_remove(&ofproto->learned_cookies, &c->hmap_node); |
3114 | ovs_list_push_back(dead_cookies, &c->list_node); | |
35f48b8b BP |
3115 | } |
3116 | ||
3117 | return; | |
3118 | } | |
3119 | } | |
3120 | ||
3121 | ovs_assert(delta > 0); | |
3122 | c = xmalloc(sizeof *c); | |
fa37affa | 3123 | hmap_insert(&ofproto->learned_cookies, &c->hmap_node, hash); |
35f48b8b BP |
3124 | c->cookie = learn->cookie; |
3125 | c->table_id = learn->table_id; | |
3126 | c->n = delta; | |
3127 | } | |
3128 | ||
3129 | static const struct ofpact_learn * | |
3130 | next_learn_with_delete(const struct rule_actions *actions, | |
3131 | const struct ofpact_learn *start) | |
3132 | { | |
3133 | const struct ofpact *pos; | |
3134 | ||
3135 | for (pos = start ? ofpact_next(&start->ofpact) : actions->ofpacts; | |
3136 | pos < ofpact_end(actions->ofpacts, actions->ofpacts_len); | |
3137 | pos = ofpact_next(pos)) { | |
3138 | if (pos->type == OFPACT_LEARN) { | |
3139 | const struct ofpact_learn *learn = ofpact_get_LEARN(pos); | |
3140 | if (learn->flags & NX_LEARN_F_DELETE_LEARNED) { | |
3141 | return learn; | |
3142 | } | |
3143 | } | |
3144 | } | |
3145 | ||
3146 | return NULL; | |
3147 | } | |
3148 | ||
3149 | static void | |
3150 | learned_cookies_update__(struct ofproto *ofproto, | |
3151 | const struct rule_actions *actions, | |
ca6ba700 | 3152 | int delta, struct ovs_list *dead_cookies) |
35f48b8b BP |
3153 | OVS_REQUIRES(ofproto_mutex) |
3154 | { | |
3155 | if (actions->has_learn_with_delete) { | |
3156 | const struct ofpact_learn *learn; | |
3157 | ||
3158 | for (learn = next_learn_with_delete(actions, NULL); learn; | |
3159 | learn = next_learn_with_delete(actions, learn)) { | |
3160 | learned_cookies_update_one__(ofproto, learn, delta, dead_cookies); | |
3161 | } | |
3162 | } | |
3163 | } | |
3164 | ||
3165 | static void | |
3166 | learned_cookies_inc(struct ofproto *ofproto, | |
3167 | const struct rule_actions *actions) | |
3168 | OVS_REQUIRES(ofproto_mutex) | |
3169 | { | |
3170 | learned_cookies_update__(ofproto, actions, +1, NULL); | |
3171 | } | |
3172 | ||
3173 | static void | |
3174 | learned_cookies_dec(struct ofproto *ofproto, | |
3175 | const struct rule_actions *actions, | |
ca6ba700 | 3176 | struct ovs_list *dead_cookies) |
35f48b8b BP |
3177 | OVS_REQUIRES(ofproto_mutex) |
3178 | { | |
3179 | learned_cookies_update__(ofproto, actions, -1, dead_cookies); | |
3180 | } | |
3181 | ||
3182 | static void | |
ca6ba700 | 3183 | learned_cookies_flush(struct ofproto *ofproto, struct ovs_list *dead_cookies) |
35f48b8b BP |
3184 | OVS_REQUIRES(ofproto_mutex) |
3185 | { | |
5f03c983 | 3186 | struct learned_cookie *c; |
35f48b8b | 3187 | |
6a6b7060 BP |
3188 | struct minimatch match; |
3189 | ||
3190 | minimatch_init_catchall(&match); | |
fa37affa | 3191 | LIST_FOR_EACH_POP (c, list_node, dead_cookies) { |
35f48b8b BP |
3192 | struct rule_criteria criteria; |
3193 | struct rule_collection rules; | |
44e0c35d | 3194 | rule_criteria_init(&criteria, c->table_id, &match, 0, OVS_VERSION_MAX, |
35f48b8b BP |
3195 | c->cookie, OVS_BE64_MAX, OFPP_ANY, OFPG_ANY); |
3196 | rule_criteria_require_rw(&criteria, false); | |
3197 | collect_rules_loose(ofproto, &criteria, &rules); | |
35f48b8b | 3198 | rule_criteria_destroy(&criteria); |
39c94593 | 3199 | delete_flows__(&rules, OFPRR_DELETE, NULL); |
35f48b8b | 3200 | |
35f48b8b BP |
3201 | free(c); |
3202 | } | |
6a6b7060 | 3203 | minimatch_destroy(&match); |
35f48b8b BP |
3204 | } |
3205 | \f | |
90bf1e07 | 3206 | static enum ofperr |
d1e2cf21 | 3207 | handle_echo_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3208 | { |
d9cea8f5 | 3209 | ofconn_send_reply(ofconn, ofputil_encode_echo_reply(oh)); |
064af421 | 3210 | return 0; |
064af421 BP |
3211 | } |
3212 | ||
3c1bb396 BP |
3213 | static void |
3214 | query_tables(struct ofproto *ofproto, | |
3215 | struct ofputil_table_features **featuresp, | |
3216 | struct ofputil_table_stats **statsp) | |
3217 | { | |
178742f9 BP |
3218 | struct mf_bitmap rw_fields = oxm_writable_fields(); |
3219 | struct mf_bitmap match = oxm_matchable_fields(); | |
3220 | struct mf_bitmap mask = oxm_maskable_fields(); | |
3c1bb396 BP |
3221 | |
3222 | struct ofputil_table_features *features; | |
3223 | struct ofputil_table_stats *stats; | |
3224 | int i; | |
3225 | ||
3c1bb396 BP |
3226 | features = *featuresp = xcalloc(ofproto->n_tables, sizeof *features); |
3227 | for (i = 0; i < ofproto->n_tables; i++) { | |
3228 | struct ofputil_table_features *f = &features[i]; | |
3229 | ||
3230 | f->table_id = i; | |
4bc938cc | 3231 | f->name[0] = '\0'; |
3c1bb396 BP |
3232 | f->metadata_match = OVS_BE64_MAX; |
3233 | f->metadata_write = OVS_BE64_MAX; | |
afcea9ea | 3234 | atomic_read_relaxed(&ofproto->tables[i].miss_config, &f->miss_config); |
3c1bb396 BP |
3235 | f->max_entries = 1000000; |
3236 | ||
5dc7516b BP |
3237 | bool more_tables = false; |
3238 | for (int j = i + 1; j < ofproto->n_tables; j++) { | |
3239 | if (!(ofproto->tables[j].flags & OFTABLE_HIDDEN)) { | |
3240 | bitmap_set1(f->nonmiss.next, j); | |
3241 | more_tables = true; | |
3242 | } | |
3243 | } | |
3c1bb396 | 3244 | f->nonmiss.instructions = (1u << N_OVS_INSTRUCTIONS) - 1; |
5dc7516b | 3245 | if (!more_tables) { |
3c1bb396 BP |
3246 | f->nonmiss.instructions &= ~(1u << OVSINST_OFPIT11_GOTO_TABLE); |
3247 | } | |
3248 | f->nonmiss.write.ofpacts = (UINT64_C(1) << N_OFPACTS) - 1; | |
3249 | f->nonmiss.write.set_fields = rw_fields; | |
3250 | f->nonmiss.apply = f->nonmiss.write; | |
3251 | f->miss = f->nonmiss; | |
3252 | ||
3253 | f->match = match; | |
3254 | f->mask = mask; | |
3255 | f->wildcard = match; | |
3256 | } | |
3257 | ||
3258 | if (statsp) { | |
3259 | stats = *statsp = xcalloc(ofproto->n_tables, sizeof *stats); | |
3260 | for (i = 0; i < ofproto->n_tables; i++) { | |
3261 | struct ofputil_table_stats *s = &stats[i]; | |
3c1bb396 BP |
3262 | |
3263 | s->table_id = i; | |
d79e3d70 | 3264 | s->active_count = ofproto->tables[i].n_flows; |
3fbbcba7 BP |
3265 | if (i == 0) { |
3266 | s->active_count -= connmgr_count_hidden_rules( | |
3267 | ofproto->connmgr); | |
3268 | } | |
3c1bb396 BP |
3269 | } |
3270 | } else { | |
3271 | stats = NULL; | |
3272 | } | |
3273 | ||
3274 | ofproto->ofproto_class->query_tables(ofproto, features, stats); | |
3275 | ||
3276 | for (i = 0; i < ofproto->n_tables; i++) { | |
3277 | const struct oftable *table = &ofproto->tables[i]; | |
3278 | struct ofputil_table_features *f = &features[i]; | |
3279 | ||
3280 | if (table->name) { | |
3281 | ovs_strzcpy(f->name, table->name, sizeof f->name); | |
3282 | } | |
3283 | ||
3284 | if (table->max_flows < f->max_entries) { | |
3285 | f->max_entries = table->max_flows; | |
3286 | } | |
3287 | } | |
3288 | } | |
3289 | ||
3290 | static void | |
3291 | query_switch_features(struct ofproto *ofproto, | |
3292 | bool *arp_match_ip, uint64_t *ofpacts) | |
3293 | { | |
3294 | struct ofputil_table_features *features, *f; | |
3295 | ||
3296 | *arp_match_ip = false; | |
3297 | *ofpacts = 0; | |
3298 | ||
3299 | query_tables(ofproto, &features, NULL); | |
3300 | for (f = features; f < &features[ofproto->n_tables]; f++) { | |
3301 | *ofpacts |= f->nonmiss.apply.ofpacts | f->miss.apply.ofpacts; | |
3302 | if (bitmap_is_set(f->match.bm, MFF_ARP_SPA) || | |
3303 | bitmap_is_set(f->match.bm, MFF_ARP_TPA)) { | |
3304 | *arp_match_ip = true; | |
3305 | } | |
3306 | } | |
3307 | free(features); | |
3308 | ||
3309 | /* Sanity check. */ | |
3310 | ovs_assert(*ofpacts & (UINT64_C(1) << OFPACT_OUTPUT)); | |
3311 | } | |
3312 | ||
90bf1e07 | 3313 | static enum ofperr |
d1e2cf21 | 3314 | handle_features_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3315 | { |
64ff1d96 | 3316 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
9e1fd49b | 3317 | struct ofputil_switch_features features; |
064af421 | 3318 | struct ofport *port; |
6c1491fb | 3319 | bool arp_match_ip; |
9e1fd49b | 3320 | struct ofpbuf *b; |
064af421 | 3321 | |
3c1bb396 | 3322 | query_switch_features(ofproto, &arp_match_ip, &features.ofpacts); |
064af421 | 3323 | |
9e1fd49b | 3324 | features.datapath_id = ofproto->datapath_id; |
c184807c | 3325 | features.n_buffers = 0; |
adcf00ba | 3326 | features.n_tables = ofproto_get_n_visible_tables(ofproto); |
9e1fd49b | 3327 | features.capabilities = (OFPUTIL_C_FLOW_STATS | OFPUTIL_C_TABLE_STATS | |
4efe455d | 3328 | OFPUTIL_C_PORT_STATS | OFPUTIL_C_QUEUE_STATS | |
50b73fe1 | 3329 | OFPUTIL_C_GROUP_STATS | OFPUTIL_C_BUNDLES); |
6c1491fb | 3330 | if (arp_match_ip) { |
9e1fd49b | 3331 | features.capabilities |= OFPUTIL_C_ARP_MATCH_IP; |
6c1491fb | 3332 | } |
2e1ae200 JR |
3333 | /* FIXME: Fill in proper features.auxiliary_id for auxiliary connections */ |
3334 | features.auxiliary_id = 0; | |
9e1fd49b BP |
3335 | b = ofputil_encode_switch_features(&features, ofconn_get_protocol(ofconn), |
3336 | oh->xid); | |
64ff1d96 | 3337 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
9e1fd49b | 3338 | ofputil_put_switch_features_port(&port->pp, b); |
064af421 | 3339 | } |
064af421 | 3340 | |
9e1fd49b | 3341 | ofconn_send_reply(ofconn, b); |
064af421 BP |
3342 | return 0; |
3343 | } | |
064af421 | 3344 | |
90bf1e07 | 3345 | static enum ofperr |
d1e2cf21 | 3346 | handle_get_config_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3347 | { |
ad99e2ed BP |
3348 | struct ofputil_switch_config config; |
3349 | config.frag = ofconn_get_ofproto(ofconn)->frag_handling; | |
3350 | config.invalid_ttl_to_controller | |
3351 | = ofconn_get_invalid_ttl_to_controller(ofconn); | |
3352 | config.miss_send_len = ofconn_get_miss_send_len(ofconn); | |
3353 | ||
3354 | ofconn_send_reply(ofconn, ofputil_encode_get_config_reply(oh, &config)); | |
2d70a31a | 3355 | |
064af421 BP |
3356 | return 0; |
3357 | } | |
064af421 | 3358 | |
90bf1e07 | 3359 | static enum ofperr |
982697a4 | 3360 | handle_set_config(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3361 | { |
64ff1d96 | 3362 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
ad99e2ed BP |
3363 | struct ofputil_switch_config config; |
3364 | enum ofperr error; | |
3365 | ||
3366 | error = ofputil_decode_set_config(oh, &config); | |
3367 | if (error) { | |
3368 | return error; | |
3369 | } | |
2d70a31a | 3370 | |
7257b535 | 3371 | if (ofconn_get_type(ofconn) != OFCONN_PRIMARY |
f4f1ea7e | 3372 | || ofconn_get_role(ofconn) != OFPCR12_ROLE_SLAVE) { |
ad99e2ed BP |
3373 | enum ofputil_frag_handling cur = ofproto->frag_handling; |
3374 | enum ofputil_frag_handling next = config.frag; | |
7257b535 | 3375 | |
7257b535 BP |
3376 | if (cur != next) { |
3377 | if (ofproto->ofproto_class->set_frag_handling(ofproto, next)) { | |
3378 | ofproto->frag_handling = next; | |
3379 | } else { | |
3380 | VLOG_WARN_RL(&rl, "%s: unsupported fragment handling mode %s", | |
3381 | ofproto->name, | |
3382 | ofputil_frag_handling_to_string(next)); | |
3383 | } | |
064af421 BP |
3384 | } |
3385 | } | |
ebe482fd | 3386 | |
ad99e2ed BP |
3387 | if (config.invalid_ttl_to_controller >= 0) { |
3388 | ofconn_set_invalid_ttl_to_controller(ofconn, | |
3389 | config.invalid_ttl_to_controller); | |
3390 | } | |
3391 | ||
3392 | ofconn_set_miss_send_len(ofconn, config.miss_send_len); | |
0ad9b732 | 3393 | |
064af421 | 3394 | return 0; |
064af421 BP |
3395 | } |
3396 | ||
9deba63b | 3397 | /* Checks whether 'ofconn' is a slave controller. If so, returns an OpenFlow |
90bf1e07 BP |
3398 | * error message code for the caller to propagate upward. Otherwise, returns |
3399 | * 0. | |
3400 | * | |
3401 | * The log message mentions 'msg_type'. */ | |
3402 | static enum ofperr | |
3403 | reject_slave_controller(struct ofconn *ofconn) | |
9deba63b | 3404 | { |
1ce0a5fa | 3405 | if (ofconn_get_type(ofconn) == OFCONN_PRIMARY |
f4f1ea7e | 3406 | && ofconn_get_role(ofconn) == OFPCR12_ROLE_SLAVE) { |
20e4ec1a | 3407 | return OFPERR_OFPBRC_IS_SLAVE; |
9deba63b BP |
3408 | } else { |
3409 | return 0; | |
3410 | } | |
3411 | } | |
3412 | ||
7e9f8266 BP |
3413 | /* Checks that the 'ofpacts_len' bytes of action in 'ofpacts' are appropriate |
3414 | * for 'ofproto': | |
3415 | * | |
3416 | * - If they use a meter, then 'ofproto' has that meter configured. | |
076caa2f | 3417 | * Updates the meter action with ofproto's datapath's provider_meter_id. |
7e9f8266 BP |
3418 | * |
3419 | * - If they use any groups, then 'ofproto' has that group configured. | |
3420 | * | |
1f4a8933 JR |
3421 | * Returns 0 if successful, otherwise an OpenFlow error. Caller must hold |
3422 | * 'ofproto_mutex' for the result to be valid also after this function | |
3423 | * returns. */ | |
89108874 | 3424 | enum ofperr |
9cae45dc | 3425 | ofproto_check_ofpacts(struct ofproto *ofproto, |
7e9f8266 | 3426 | const struct ofpact ofpacts[], size_t ofpacts_len) |
1f4a8933 | 3427 | OVS_REQUIRES(ofproto_mutex) |
9cae45dc | 3428 | { |
076caa2f | 3429 | const struct ofpact *a; |
9cae45dc | 3430 | |
076caa2f JR |
3431 | OFPACT_FOR_EACH_FLATTENED (a, ofpacts, ofpacts_len) { |
3432 | if (a->type == OFPACT_METER && | |
3433 | !ofproto_fix_meter_action(ofproto, ofpact_get_METER(a))) { | |
3434 | return OFPERR_OFPMMFC_INVALID_METER; | |
3435 | } | |
9cae45dc | 3436 | |
206ddb9a JP |
3437 | if (a->type == OFPACT_CONTROLLER) { |
3438 | struct ofpact_controller *ca = ofpact_get_CONTROLLER(a); | |
3439 | ||
3440 | if (!ofproto_fix_controller_action(ofproto, ca)) { | |
3441 | static struct vlog_rate_limit rl2 = VLOG_RATE_LIMIT_INIT(1, 5); | |
3442 | VLOG_INFO_RL(&rl2, "%s: controller action specified an " | |
3443 | "unknown meter id: %d", | |
3444 | ofproto->name, ca->meter_id); | |
3445 | } | |
3446 | } | |
3447 | ||
076caa2f JR |
3448 | if (a->type == OFPACT_GROUP |
3449 | && !ofproto_group_exists(ofproto, ofpact_get_GROUP(a)->group_id)) { | |
7e9f8266 | 3450 | return OFPERR_OFPBAC_BAD_OUT_GROUP; |
84d68566 SH |
3451 | } |
3452 | } | |
3453 | ||
9cae45dc JR |
3454 | return 0; |
3455 | } | |
3456 | ||
1f4a8933 JR |
3457 | void |
3458 | ofproto_packet_out_uninit(struct ofproto_packet_out *opo) | |
3459 | { | |
3460 | dp_packet_delete(opo->packet); | |
3461 | opo->packet = NULL; | |
3462 | free(opo->flow); | |
3463 | opo->flow = NULL; | |
3464 | free(opo->ofpacts); | |
3465 | opo->ofpacts = NULL; | |
3466 | opo->ofpacts_len = 0; | |
3467 | ovs_assert(!opo->aux); | |
3468 | } | |
3469 | ||
3470 | /* Takes ownership of po->ofpacts, which must have been malloc'ed. */ | |
3471 | static enum ofperr | |
3472 | ofproto_packet_out_init(struct ofproto *ofproto, | |
3473 | struct ofconn *ofconn, | |
3474 | struct ofproto_packet_out *opo, | |
3475 | const struct ofputil_packet_out *po) | |
3476 | { | |
3477 | enum ofperr error; | |
67210a55 | 3478 | struct match match; |
d7892c81 YHW |
3479 | struct { |
3480 | struct miniflow mf; | |
3481 | uint64_t buf[FLOW_U64S]; | |
3482 | } m; | |
1f4a8933 | 3483 | |
35eb6326 YHW |
3484 | uint16_t in_port = ofp_to_u16(po->flow_metadata.flow.in_port.ofp_port); |
3485 | if (in_port >= ofproto->max_ports && in_port < ofp_to_u16(OFPP_MAX)) { | |
1f4a8933 JR |
3486 | return OFPERR_OFPBRC_BAD_PORT; |
3487 | } | |
3488 | ||
3489 | /* Get payload. */ | |
3490 | if (po->buffer_id != UINT32_MAX) { | |
3491 | return OFPERR_OFPBRC_BUFFER_UNKNOWN; | |
3492 | } | |
3493 | ||
3494 | /* Ensure that the L3 header is 32-bit aligned. */ | |
3495 | opo->packet = dp_packet_clone_data_with_headroom(po->packet, | |
3496 | po->packet_len, 2); | |
cb1145d1 ZB |
3497 | /* Take the received packet_tpye as packet_type of the packet. */ |
3498 | opo->packet->packet_type = po->flow_metadata.flow.packet_type; | |
3499 | ||
1f4a8933 JR |
3500 | /* Store struct flow. */ |
3501 | opo->flow = xmalloc(sizeof *opo->flow); | |
d7892c81 YHW |
3502 | *opo->flow = po->flow_metadata.flow; |
3503 | miniflow_extract(opo->packet, &m.mf); | |
3504 | flow_union_with_miniflow(opo->flow, &m.mf); | |
1f4a8933 JR |
3505 | |
3506 | /* Check actions like for flow mods. We pass a 'table_id' of 0 to | |
3507 | * ofproto_check_consistency(), which isn't strictly correct because these | |
3508 | * actions aren't in any table. This is OK as 'table_id' is only used to | |
3509 | * check instructions (e.g., goto-table), which can't appear on the action | |
3510 | * list of a packet-out. */ | |
67210a55 | 3511 | match_wc_init(&match, opo->flow); |
ae6f7530 BP |
3512 | struct ofpact_check_params cp = { |
3513 | .match = &match, | |
3514 | .max_ports = u16_to_ofp(ofproto->max_ports), | |
3515 | .table_id = 0, | |
3516 | .n_tables = ofproto->n_tables | |
3517 | }; | |
3518 | error = ofpacts_check_consistency(po->ofpacts, po->ofpacts_len, | |
3519 | ofconn_get_protocol(ofconn), &cp); | |
1f4a8933 JR |
3520 | if (error) { |
3521 | dp_packet_delete(opo->packet); | |
3522 | free(opo->flow); | |
3523 | return error; | |
3524 | } | |
3525 | ||
3526 | opo->ofpacts = po->ofpacts; | |
3527 | opo->ofpacts_len = po->ofpacts_len; | |
3528 | ||
3529 | opo->aux = NULL; | |
3530 | return 0; | |
3531 | } | |
3532 | ||
3533 | static enum ofperr | |
3534 | ofproto_packet_out_start(struct ofproto *ofproto, | |
3535 | struct ofproto_packet_out *opo) | |
3536 | OVS_REQUIRES(ofproto_mutex) | |
3537 | { | |
3538 | enum ofperr error; | |
3539 | ||
3540 | error = ofproto_check_ofpacts(ofproto, opo->ofpacts, opo->ofpacts_len); | |
3541 | if (error) { | |
3542 | return error; | |
3543 | } | |
3544 | ||
3545 | return ofproto->ofproto_class->packet_xlate(ofproto, opo); | |
3546 | } | |
3547 | ||
6dd3c787 JR |
3548 | static void |
3549 | ofproto_packet_out_revert(struct ofproto *ofproto, | |
3550 | struct ofproto_packet_out *opo) | |
3551 | OVS_REQUIRES(ofproto_mutex) | |
3552 | { | |
3553 | ofproto->ofproto_class->packet_xlate_revert(ofproto, opo); | |
3554 | } | |
3555 | ||
1f4a8933 JR |
3556 | static void |
3557 | ofproto_packet_out_finish(struct ofproto *ofproto, | |
3558 | struct ofproto_packet_out *opo) | |
3559 | OVS_REQUIRES(ofproto_mutex) | |
3560 | { | |
3561 | ofproto->ofproto_class->packet_execute(ofproto, opo); | |
3562 | } | |
3563 | ||
90bf1e07 | 3564 | static enum ofperr |
982697a4 | 3565 | handle_packet_out(struct ofconn *ofconn, const struct ofp_header *oh) |
1f4a8933 | 3566 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 3567 | { |
64ff1d96 | 3568 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
c6a93eb7 | 3569 | struct ofputil_packet_out po; |
1f4a8933 | 3570 | struct ofproto_packet_out opo; |
f25d0cf3 BP |
3571 | uint64_t ofpacts_stub[1024 / 8]; |
3572 | struct ofpbuf ofpacts; | |
90bf1e07 | 3573 | enum ofperr error; |
064af421 | 3574 | |
ac51afaf BP |
3575 | COVERAGE_INC(ofproto_packet_out); |
3576 | ||
76589937 | 3577 | error = reject_slave_controller(ofconn); |
9deba63b | 3578 | if (error) { |
1f4a8933 | 3579 | return error; |
9deba63b BP |
3580 | } |
3581 | ||
c6a93eb7 | 3582 | /* Decode message. */ |
f25d0cf3 | 3583 | ofpbuf_use_stub(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); |
89d7927b YHW |
3584 | error = ofputil_decode_packet_out(&po, oh, ofproto_get_tun_tab(p), |
3585 | &ofpacts); | |
064af421 | 3586 | if (error) { |
1f4a8933 JR |
3587 | ofpbuf_uninit(&ofpacts); |
3588 | return error; | |
91858960 | 3589 | } |
064af421 | 3590 | |
1f4a8933 JR |
3591 | po.ofpacts = ofpbuf_steal_data(&ofpacts); /* Move to heap. */ |
3592 | error = ofproto_packet_out_init(p, ofconn, &opo, &po); | |
3593 | if (error) { | |
3594 | free(po.ofpacts); | |
3595 | return error; | |
e1154f71 | 3596 | } |
89108874 | 3597 | |
1f4a8933 JR |
3598 | ovs_mutex_lock(&ofproto_mutex); |
3599 | opo.version = p->tables_version; | |
3600 | error = ofproto_packet_out_start(p, &opo); | |
548de4dd | 3601 | if (!error) { |
1f4a8933 | 3602 | ofproto_packet_out_finish(p, &opo); |
548de4dd | 3603 | } |
1f4a8933 | 3604 | ovs_mutex_unlock(&ofproto_mutex); |
abe529af | 3605 | |
1f4a8933 | 3606 | ofproto_packet_out_uninit(&opo); |
abe529af | 3607 | return error; |
064af421 BP |
3608 | } |
3609 | ||
77ab5fd2 BP |
3610 | static enum ofperr |
3611 | handle_nxt_resume(struct ofconn *ofconn, const struct ofp_header *oh) | |
3612 | { | |
3613 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
3614 | struct ofputil_packet_in_private pin; | |
3615 | enum ofperr error; | |
3616 | ||
8d8ab6c2 | 3617 | error = ofputil_decode_packet_in_private(oh, false, |
3cddeff0 YHW |
3618 | ofproto_get_tun_tab(ofproto), |
3619 | &ofproto->vl_mff_map, &pin, NULL, | |
3620 | NULL); | |
77ab5fd2 BP |
3621 | if (error) { |
3622 | return error; | |
3623 | } | |
3624 | ||
3625 | error = (ofproto->ofproto_class->nxt_resume | |
3626 | ? ofproto->ofproto_class->nxt_resume(ofproto, &pin) | |
3627 | : OFPERR_NXR_NOT_SUPPORTED); | |
3628 | ||
3629 | ofputil_packet_in_private_destroy(&pin); | |
3630 | ||
3631 | return error; | |
3632 | } | |
3633 | ||
064af421 | 3634 | static void |
2a6f78e0 | 3635 | update_port_config(struct ofconn *ofconn, struct ofport *port, |
9e1fd49b BP |
3636 | enum ofputil_port_config config, |
3637 | enum ofputil_port_config mask) | |
064af421 | 3638 | { |
2a6f78e0 | 3639 | enum ofputil_port_config toggle = (config ^ port->pp.config) & mask; |
abe529af | 3640 | |
2a6f78e0 BP |
3641 | if (toggle & OFPUTIL_PC_PORT_DOWN |
3642 | && (config & OFPUTIL_PC_PORT_DOWN | |
3643 | ? netdev_turn_flags_off(port->netdev, NETDEV_UP, NULL) | |
3644 | : netdev_turn_flags_on(port->netdev, NETDEV_UP, NULL))) { | |
3645 | /* We tried to bring the port up or down, but it failed, so don't | |
3646 | * update the "down" bit. */ | |
9e1fd49b | 3647 | toggle &= ~OFPUTIL_PC_PORT_DOWN; |
064af421 | 3648 | } |
abe529af | 3649 | |
2a6f78e0 BP |
3650 | if (toggle) { |
3651 | enum ofputil_port_config old_config = port->pp.config; | |
3652 | port->pp.config ^= toggle; | |
abe529af | 3653 | port->ofproto->ofproto_class->port_reconfigured(port, old_config); |
2a6f78e0 BP |
3654 | connmgr_send_port_status(port->ofproto->connmgr, ofconn, &port->pp, |
3655 | OFPPR_MODIFY); | |
064af421 BP |
3656 | } |
3657 | } | |
3658 | ||
90bf1e07 | 3659 | static enum ofperr |
1c38055d JR |
3660 | port_mod_start(struct ofconn *ofconn, struct ofputil_port_mod *pm, |
3661 | struct ofport **port) | |
064af421 | 3662 | { |
64ff1d96 | 3663 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
1c38055d JR |
3664 | |
3665 | *port = ofproto_get_port(p, pm->port_no); | |
3666 | if (!*port) { | |
3667 | return OFPERR_OFPPMFC_BAD_PORT; | |
3668 | } | |
2f2b904f BP |
3669 | if (!eth_addr_equals((*port)->pp.hw_addr, pm->hw_addr) || |
3670 | !eth_addr64_equals((*port)->pp.hw_addr64, pm->hw_addr64)) { | |
1c38055d JR |
3671 | return OFPERR_OFPPMFC_BAD_HW_ADDR; |
3672 | } | |
3673 | return 0; | |
3674 | } | |
3675 | ||
3676 | static void | |
3677 | port_mod_finish(struct ofconn *ofconn, struct ofputil_port_mod *pm, | |
3678 | struct ofport *port) | |
3679 | { | |
3680 | update_port_config(ofconn, port, pm->config, pm->mask); | |
3681 | if (pm->advertise) { | |
3682 | netdev_set_advertisements(port->netdev, pm->advertise); | |
3683 | } | |
3684 | } | |
3685 | ||
3686 | static enum ofperr | |
3687 | handle_port_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
3688 | { | |
9e1fd49b | 3689 | struct ofputil_port_mod pm; |
064af421 | 3690 | struct ofport *port; |
9e1fd49b | 3691 | enum ofperr error; |
064af421 | 3692 | |
76589937 | 3693 | error = reject_slave_controller(ofconn); |
9deba63b BP |
3694 | if (error) { |
3695 | return error; | |
3696 | } | |
064af421 | 3697 | |
18cc69d9 | 3698 | error = ofputil_decode_port_mod(oh, &pm, false); |
9e1fd49b BP |
3699 | if (error) { |
3700 | return error; | |
3701 | } | |
3702 | ||
1c38055d JR |
3703 | error = port_mod_start(ofconn, &pm, &port); |
3704 | if (!error) { | |
3705 | port_mod_finish(ofconn, &pm, port); | |
064af421 | 3706 | } |
1c38055d | 3707 | return error; |
064af421 BP |
3708 | } |
3709 | ||
90bf1e07 | 3710 | static enum ofperr |
3269c562 | 3711 | handle_desc_stats_request(struct ofconn *ofconn, |
982697a4 | 3712 | const struct ofp_header *request) |
064af421 | 3713 | { |
061bfea4 BP |
3714 | static const char *default_mfr_desc = "Nicira, Inc."; |
3715 | static const char *default_hw_desc = "Open vSwitch"; | |
3716 | static const char *default_sw_desc = VERSION; | |
3717 | static const char *default_serial_desc = "None"; | |
3718 | static const char *default_dp_desc = "None"; | |
3719 | ||
64ff1d96 | 3720 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 BP |
3721 | struct ofp_desc_stats *ods; |
3722 | struct ofpbuf *msg; | |
3723 | ||
982697a4 BP |
3724 | msg = ofpraw_alloc_stats_reply(request, 0); |
3725 | ods = ofpbuf_put_zeros(msg, sizeof *ods); | |
061bfea4 BP |
3726 | ovs_strlcpy(ods->mfr_desc, p->mfr_desc ? p->mfr_desc : default_mfr_desc, |
3727 | sizeof ods->mfr_desc); | |
3728 | ovs_strlcpy(ods->hw_desc, p->hw_desc ? p->hw_desc : default_hw_desc, | |
3729 | sizeof ods->hw_desc); | |
3730 | ovs_strlcpy(ods->sw_desc, p->sw_desc ? p->sw_desc : default_sw_desc, | |
3731 | sizeof ods->sw_desc); | |
3732 | ovs_strlcpy(ods->serial_num, | |
3733 | p->serial_desc ? p->serial_desc : default_serial_desc, | |
3734 | sizeof ods->serial_num); | |
3735 | ovs_strlcpy(ods->dp_desc, p->dp_desc ? p->dp_desc : default_dp_desc, | |
3736 | sizeof ods->dp_desc); | |
b0421aa2 | 3737 | ofconn_send_reply(ofconn, msg); |
064af421 BP |
3738 | |
3739 | return 0; | |
3740 | } | |
3741 | ||
90bf1e07 | 3742 | static enum ofperr |
3269c562 | 3743 | handle_table_stats_request(struct ofconn *ofconn, |
982697a4 | 3744 | const struct ofp_header *request) |
064af421 | 3745 | { |
3c1bb396 BP |
3746 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
3747 | struct ofputil_table_features *features; | |
08d1e234 | 3748 | struct ofputil_table_stats *stats; |
3c1bb396 | 3749 | struct ofpbuf *reply; |
6c1491fb | 3750 | size_t i; |
064af421 | 3751 | |
3c1bb396 | 3752 | query_tables(ofproto, &features, &stats); |
254750ce | 3753 | |
3c1bb396 BP |
3754 | reply = ofputil_encode_table_stats_reply(request); |
3755 | for (i = 0; i < ofproto->n_tables; i++) { | |
3756 | if (!(ofproto->tables[i].flags & OFTABLE_HIDDEN)) { | |
3757 | ofputil_append_table_stats_reply(reply, &stats[i], &features[i]); | |
254750ce BP |
3758 | } |
3759 | } | |
3c1bb396 | 3760 | ofconn_send_reply(ofconn, reply); |
254750ce | 3761 | |
3c1bb396 | 3762 | free(features); |
08d1e234 | 3763 | free(stats); |
307975da | 3764 | |
064af421 BP |
3765 | return 0; |
3766 | } | |
3767 | ||
3c4e10fb BP |
3768 | static enum ofperr |
3769 | handle_table_features_request(struct ofconn *ofconn, | |
3770 | const struct ofp_header *request) | |
3771 | { | |
3772 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
0a2869d5 BP |
3773 | struct ofpbuf msg = ofpbuf_const_initializer(request, |
3774 | ntohs(request->length)); | |
3c4e10fb | 3775 | ofpraw_pull_assert(&msg); |
6fd6ed71 | 3776 | if (msg.size || ofpmp_more(request)) { |
3c4e10fb BP |
3777 | return OFPERR_OFPTFFC_EPERM; |
3778 | } | |
3779 | ||
0a2869d5 | 3780 | struct ofputil_table_features *features; |
3c4e10fb BP |
3781 | query_tables(ofproto, &features, NULL); |
3782 | ||
0a2869d5 | 3783 | struct ovs_list replies; |
3c4e10fb | 3784 | ofpmp_init(&replies, request); |
0a2869d5 | 3785 | for (size_t i = 0; i < ofproto->n_tables; i++) { |
3c4e10fb BP |
3786 | if (!(ofproto->tables[i].flags & OFTABLE_HIDDEN)) { |
3787 | ofputil_append_table_features_reply(&features[i], &replies); | |
3788 | } | |
3789 | } | |
3790 | ofconn_send_replies(ofconn, &replies); | |
3791 | ||
3792 | free(features); | |
3793 | ||
3794 | return 0; | |
3795 | } | |
3796 | ||
6c6eedc5 SJ |
3797 | /* Returns the vacancy of 'oftable', a number that ranges from 0 (if the table |
3798 | * is full) to 100 (if the table is empty). | |
3799 | * | |
3800 | * A table without a limit on flows is considered to be empty. */ | |
3801 | static uint8_t | |
3802 | oftable_vacancy(const struct oftable *t) | |
3803 | { | |
3804 | return (!t->max_flows ? 100 | |
3805 | : t->n_flows >= t->max_flows ? 0 | |
3806 | : (t->max_flows - t->n_flows) * 100.0 / t->max_flows); | |
3807 | } | |
3808 | ||
bab86012 SJ |
3809 | static void |
3810 | query_table_desc__(struct ofputil_table_desc *td, | |
3811 | struct ofproto *ofproto, uint8_t table_id) | |
3812 | { | |
6c6eedc5 | 3813 | const struct oftable *t = &ofproto->tables[table_id]; |
bab86012 SJ |
3814 | |
3815 | td->table_id = table_id; | |
6c6eedc5 | 3816 | td->eviction = (t->eviction & EVICTION_OPENFLOW |
bab86012 SJ |
3817 | ? OFPUTIL_TABLE_EVICTION_ON |
3818 | : OFPUTIL_TABLE_EVICTION_OFF); | |
3819 | td->eviction_flags = OFPROTO_EVICTION_FLAGS; | |
6c6eedc5 | 3820 | td->vacancy = (t->vacancy_event |
bab86012 SJ |
3821 | ? OFPUTIL_TABLE_VACANCY_ON |
3822 | : OFPUTIL_TABLE_VACANCY_OFF); | |
6c6eedc5 SJ |
3823 | td->table_vacancy.vacancy_down = t->vacancy_down; |
3824 | td->table_vacancy.vacancy_up = t->vacancy_up; | |
3825 | td->table_vacancy.vacancy = oftable_vacancy(t); | |
bab86012 SJ |
3826 | } |
3827 | ||
03c72922 BP |
3828 | /* This function queries the database for dumping table-desc. */ |
3829 | static void | |
3830 | query_tables_desc(struct ofproto *ofproto, struct ofputil_table_desc **descp) | |
3831 | { | |
3832 | struct ofputil_table_desc *table_desc; | |
3833 | size_t i; | |
3834 | ||
3835 | table_desc = *descp = xcalloc(ofproto->n_tables, sizeof *table_desc); | |
3836 | for (i = 0; i < ofproto->n_tables; i++) { | |
3837 | struct ofputil_table_desc *td = &table_desc[i]; | |
bab86012 | 3838 | query_table_desc__(td, ofproto, i); |
03c72922 BP |
3839 | } |
3840 | } | |
3841 | ||
3842 | /* Function to handle dump-table-desc request. */ | |
3843 | static enum ofperr | |
3844 | handle_table_desc_request(struct ofconn *ofconn, | |
3845 | const struct ofp_header *request) | |
3846 | { | |
3847 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
3848 | struct ofputil_table_desc *table_desc; | |
3849 | struct ovs_list replies; | |
3850 | size_t i; | |
3851 | ||
3852 | query_tables_desc(ofproto, &table_desc); | |
3853 | ofpmp_init(&replies, request); | |
3854 | for (i = 0; i < ofproto->n_tables; i++) { | |
3855 | if (!(ofproto->tables[i].flags & OFTABLE_HIDDEN)) { | |
3856 | ofputil_append_table_desc_reply(&table_desc[i], &replies, | |
3857 | request->version); | |
3858 | } | |
3859 | } | |
3860 | ofconn_send_replies(ofconn, &replies); | |
3861 | free(table_desc); | |
3862 | return 0; | |
3863 | } | |
3864 | ||
6c6eedc5 SJ |
3865 | /* This function determines and sends the vacancy event, based on the value |
3866 | * of current vacancy and threshold vacancy. If the current vacancy is less | |
3867 | * than or equal to vacancy_down, vacancy up events must be enabled, and when | |
3868 | * the current vacancy is greater or equal to vacancy_up, vacancy down events | |
3869 | * must be enabled. */ | |
3870 | static void | |
3871 | send_table_status(struct ofproto *ofproto, uint8_t table_id) | |
3872 | { | |
3873 | struct oftable *t = &ofproto->tables[table_id]; | |
3874 | if (!t->vacancy_event) { | |
3875 | return; | |
3876 | } | |
3877 | ||
3878 | uint8_t vacancy = oftable_vacancy(t); | |
3879 | enum ofp14_table_reason event; | |
3880 | if (vacancy < t->vacancy_down) { | |
3881 | event = OFPTR_VACANCY_DOWN; | |
3882 | } else if (vacancy > t->vacancy_up) { | |
3883 | event = OFPTR_VACANCY_UP; | |
3884 | } else { | |
3885 | return; | |
3886 | } | |
3887 | ||
3888 | if (event == t->vacancy_event) { | |
3889 | struct ofputil_table_desc td; | |
3890 | query_table_desc__(&td, ofproto, table_id); | |
3891 | connmgr_send_table_status(ofproto->connmgr, &td, event); | |
3892 | ||
3893 | t->vacancy_event = (event == OFPTR_VACANCY_DOWN | |
3894 | ? OFPTR_VACANCY_UP | |
3895 | : OFPTR_VACANCY_DOWN); | |
3896 | } | |
3897 | } | |
3898 | ||
abaad8cf | 3899 | static void |
ca6ba700 | 3900 | append_port_stat(struct ofport *port, struct ovs_list *replies) |
abaad8cf | 3901 | { |
f8e4867e | 3902 | struct ofputil_port_stats ops = { .port_no = port->pp.port_no }; |
abaad8cf | 3903 | |
65e0be10 BP |
3904 | calc_duration(port->created, time_msec(), |
3905 | &ops.duration_sec, &ops.duration_nsec); | |
3906 | ||
d295e8e9 JP |
3907 | /* Intentionally ignore return value, since errors will set |
3908 | * 'stats' to all-1s, which is correct for OpenFlow, and | |
abaad8cf | 3909 | * netdev_get_stats() will log errors. */ |
f8e4867e | 3910 | ofproto_port_get_stats(port, &ops.stats); |
971f4b39 | 3911 | netdev_get_custom_stats(port->netdev, &ops.custom_stats); |
f8e4867e SH |
3912 | |
3913 | ofputil_append_port_stat(replies, &ops); | |
971f4b39 MW |
3914 | |
3915 | netdev_free_custom_stats_counters(&ops.custom_stats); | |
abaad8cf JP |
3916 | } |
3917 | ||
70ae4f93 BP |
3918 | static void |
3919 | handle_port_request(struct ofconn *ofconn, | |
3920 | const struct ofp_header *request, ofp_port_t port_no, | |
ca6ba700 | 3921 | void (*cb)(struct ofport *, struct ovs_list *replies)) |
064af421 | 3922 | { |
70ae4f93 | 3923 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
064af421 | 3924 | struct ofport *port; |
ca6ba700 | 3925 | struct ovs_list replies; |
064af421 | 3926 | |
982697a4 | 3927 | ofpmp_init(&replies, request); |
7f05e7ab | 3928 | if (port_no != OFPP_ANY) { |
70ae4f93 | 3929 | port = ofproto_get_port(ofproto, port_no); |
abaad8cf | 3930 | if (port) { |
70ae4f93 | 3931 | cb(port, &replies); |
abaad8cf JP |
3932 | } |
3933 | } else { | |
70ae4f93 BP |
3934 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
3935 | cb(port, &replies); | |
abaad8cf | 3936 | } |
064af421 BP |
3937 | } |
3938 | ||
63f2140a | 3939 | ofconn_send_replies(ofconn, &replies); |
70ae4f93 BP |
3940 | } |
3941 | ||
3942 | static enum ofperr | |
3943 | handle_port_stats_request(struct ofconn *ofconn, | |
3944 | const struct ofp_header *request) | |
3945 | { | |
3946 | ofp_port_t port_no; | |
3947 | enum ofperr error; | |
3948 | ||
3949 | error = ofputil_decode_port_stats_request(request, &port_no); | |
3950 | if (!error) { | |
3951 | handle_port_request(ofconn, request, port_no, append_port_stat); | |
3952 | } | |
3953 | return error; | |
3954 | } | |
3955 | ||
3956 | static void | |
ca6ba700 | 3957 | append_port_desc(struct ofport *port, struct ovs_list *replies) |
70ae4f93 BP |
3958 | { |
3959 | ofputil_append_port_desc_stats_reply(&port->pp, replies); | |
064af421 BP |
3960 | } |
3961 | ||
2be393ed JP |
3962 | static enum ofperr |
3963 | handle_port_desc_stats_request(struct ofconn *ofconn, | |
982697a4 | 3964 | const struct ofp_header *request) |
2be393ed | 3965 | { |
70ae4f93 BP |
3966 | ofp_port_t port_no; |
3967 | enum ofperr error; | |
2be393ed | 3968 | |
70ae4f93 BP |
3969 | error = ofputil_decode_port_desc_stats_request(request, &port_no); |
3970 | if (!error) { | |
3971 | handle_port_request(ofconn, request, port_no, append_port_desc); | |
2be393ed | 3972 | } |
70ae4f93 | 3973 | return error; |
2be393ed JP |
3974 | } |
3975 | ||
98eaac36 JR |
3976 | static uint32_t |
3977 | hash_cookie(ovs_be64 cookie) | |
3978 | { | |
965607c8 | 3979 | return hash_uint64((OVS_FORCE uint64_t)cookie); |
98eaac36 JR |
3980 | } |
3981 | ||
3982 | static void | |
3983 | cookies_insert(struct ofproto *ofproto, struct rule *rule) | |
2c916028 | 3984 | OVS_REQUIRES(ofproto_mutex) |
98eaac36 JR |
3985 | { |
3986 | hindex_insert(&ofproto->cookies, &rule->cookie_node, | |
3987 | hash_cookie(rule->flow_cookie)); | |
3988 | } | |
3989 | ||
3990 | static void | |
3991 | cookies_remove(struct ofproto *ofproto, struct rule *rule) | |
2c916028 | 3992 | OVS_REQUIRES(ofproto_mutex) |
98eaac36 JR |
3993 | { |
3994 | hindex_remove(&ofproto->cookies, &rule->cookie_node); | |
3995 | } | |
3996 | ||
c6ebb8fb | 3997 | static void |
65e0be10 BP |
3998 | calc_duration(long long int start, long long int now, |
3999 | uint32_t *sec, uint32_t *nsec) | |
c6ebb8fb | 4000 | { |
f27f2134 | 4001 | long long int msecs = now - start; |
588cd7b5 BP |
4002 | *sec = msecs / 1000; |
4003 | *nsec = (msecs % 1000) * (1000 * 1000); | |
4004 | } | |
4005 | ||
48266274 | 4006 | /* Checks whether 'table_id' is 0xff or a valid table ID in 'ofproto'. Returns |
554764d1 SH |
4007 | * true if 'table_id' is OK, false otherwise. */ |
4008 | static bool | |
48266274 BP |
4009 | check_table_id(const struct ofproto *ofproto, uint8_t table_id) |
4010 | { | |
554764d1 | 4011 | return table_id == OFPTT_ALL || table_id < ofproto->n_tables; |
48266274 BP |
4012 | } |
4013 | ||
5c67e4af | 4014 | static struct oftable * |
d4ce8a49 | 4015 | next_visible_table(const struct ofproto *ofproto, uint8_t table_id) |
5c67e4af BP |
4016 | { |
4017 | struct oftable *table; | |
4018 | ||
4019 | for (table = &ofproto->tables[table_id]; | |
4020 | table < &ofproto->tables[ofproto->n_tables]; | |
4021 | table++) { | |
4022 | if (!(table->flags & OFTABLE_HIDDEN)) { | |
4023 | return table; | |
4024 | } | |
4025 | } | |
4026 | ||
4027 | return NULL; | |
4028 | } | |
4029 | ||
d0918789 | 4030 | static struct oftable * |
d4ce8a49 | 4031 | first_matching_table(const struct ofproto *ofproto, uint8_t table_id) |
064af421 | 4032 | { |
6c1491fb | 4033 | if (table_id == 0xff) { |
5c67e4af | 4034 | return next_visible_table(ofproto, 0); |
6c1491fb BP |
4035 | } else if (table_id < ofproto->n_tables) { |
4036 | return &ofproto->tables[table_id]; | |
a02e5331 | 4037 | } else { |
6c1491fb | 4038 | return NULL; |
a02e5331 | 4039 | } |
064af421 BP |
4040 | } |
4041 | ||
d0918789 | 4042 | static struct oftable * |
d4ce8a49 BP |
4043 | next_matching_table(const struct ofproto *ofproto, |
4044 | const struct oftable *table, uint8_t table_id) | |
6c1491fb | 4045 | { |
5c67e4af BP |
4046 | return (table_id == 0xff |
4047 | ? next_visible_table(ofproto, (table - ofproto->tables) + 1) | |
6c1491fb BP |
4048 | : NULL); |
4049 | } | |
4050 | ||
d0918789 | 4051 | /* Assigns TABLE to each oftable, in turn, that matches TABLE_ID in OFPROTO: |
6c1491fb BP |
4052 | * |
4053 | * - If TABLE_ID is 0xff, this iterates over every classifier table in | |
5c67e4af | 4054 | * OFPROTO, skipping tables marked OFTABLE_HIDDEN. |
6c1491fb BP |
4055 | * |
4056 | * - If TABLE_ID is the number of a table in OFPROTO, then the loop iterates | |
5c67e4af BP |
4057 | * only once, for that table. (This can be used to access tables marked |
4058 | * OFTABLE_HIDDEN.) | |
6c1491fb | 4059 | * |
48266274 BP |
4060 | * - Otherwise, TABLE_ID isn't valid for OFPROTO, so the loop won't be |
4061 | * entered at all. (Perhaps you should have validated TABLE_ID with | |
4062 | * check_table_id().) | |
6c1491fb BP |
4063 | * |
4064 | * All parameters are evaluated multiple times. | |
4065 | */ | |
d0918789 BP |
4066 | #define FOR_EACH_MATCHING_TABLE(TABLE, TABLE_ID, OFPROTO) \ |
4067 | for ((TABLE) = first_matching_table(OFPROTO, TABLE_ID); \ | |
4068 | (TABLE) != NULL; \ | |
4069 | (TABLE) = next_matching_table(OFPROTO, TABLE, TABLE_ID)) | |
6c1491fb | 4070 | |
a9b22b7f BP |
4071 | /* Initializes 'criteria' in a straightforward way based on the other |
4072 | * parameters. | |
4073 | * | |
dd51dae2 BP |
4074 | * By default, the criteria include flows that are read-only, on the assumption |
4075 | * that the collected flows won't be modified. Call rule_criteria_require_rw() | |
4076 | * if flows will be modified. | |
4077 | * | |
a9b22b7f BP |
4078 | * For "loose" matching, the 'priority' parameter is unimportant and may be |
4079 | * supplied as 0. */ | |
4080 | static void | |
4081 | rule_criteria_init(struct rule_criteria *criteria, uint8_t table_id, | |
6a6b7060 | 4082 | const struct minimatch *match, int priority, |
44e0c35d | 4083 | ovs_version_t version, ovs_be64 cookie, |
18721c4a JR |
4084 | ovs_be64 cookie_mask, ofp_port_t out_port, |
4085 | uint32_t out_group) | |
a9b22b7f BP |
4086 | { |
4087 | criteria->table_id = table_id; | |
6a6b7060 | 4088 | cls_rule_init_from_minimatch(&criteria->cr, match, priority); |
bd53aa17 | 4089 | criteria->version = version; |
a9b22b7f BP |
4090 | criteria->cookie = cookie; |
4091 | criteria->cookie_mask = cookie_mask; | |
4092 | criteria->out_port = out_port; | |
4093 | criteria->out_group = out_group; | |
dd51dae2 BP |
4094 | |
4095 | /* We ordinarily want to skip hidden rules, but there has to be a way for | |
4096 | * code internal to OVS to modify and delete them, so if the criteria | |
4097 | * specify a priority that can only be for a hidden flow, then allow hidden | |
4098 | * rules to be selected. (This doesn't allow OpenFlow clients to meddle | |
4099 | * with hidden flows because OpenFlow uses only a 16-bit field to specify | |
4100 | * priority.) */ | |
4101 | criteria->include_hidden = priority > UINT16_MAX; | |
4102 | ||
4103 | /* We assume that the criteria are being used to collect flows for reading | |
4104 | * but not modification. Thus, we should collect read-only flows. */ | |
4105 | criteria->include_readonly = true; | |
4106 | } | |
4107 | ||
4108 | /* By default, criteria initialized by rule_criteria_init() will match flows | |
4109 | * that are read-only, on the assumption that the collected flows won't be | |
4110 | * modified. Call this function to match only flows that are be modifiable. | |
4111 | * | |
4112 | * Specify 'can_write_readonly' as false in ordinary circumstances, true if the | |
4113 | * caller has special privileges that allow it to modify even "read-only" | |
4114 | * flows. */ | |
4115 | static void | |
4116 | rule_criteria_require_rw(struct rule_criteria *criteria, | |
4117 | bool can_write_readonly) | |
4118 | { | |
4119 | criteria->include_readonly = can_write_readonly; | |
a9b22b7f BP |
4120 | } |
4121 | ||
4122 | static void | |
4123 | rule_criteria_destroy(struct rule_criteria *criteria) | |
4124 | { | |
4125 | cls_rule_destroy(&criteria->cr); | |
5bacd5cd | 4126 | criteria->version = OVS_VERSION_NOT_REMOVED; /* Mark as destroyed. */ |
a9b22b7f BP |
4127 | } |
4128 | ||
39c94593 JR |
4129 | /* Schedules postponed removal of rules, destroys 'rules'. */ |
4130 | static void | |
cc099268 | 4131 | remove_rules_postponed(struct rule_collection *rules) |
39c94593 JR |
4132 | OVS_REQUIRES(ofproto_mutex) |
4133 | { | |
fe59694b JR |
4134 | if (rule_collection_n(rules) > 0) { |
4135 | if (rule_collection_n(rules) == 1) { | |
4136 | ovsrcu_postpone(remove_rule_rcu, rule_collection_rules(rules)[0]); | |
4137 | rule_collection_init(rules); | |
39c94593 JR |
4138 | } else { |
4139 | ovsrcu_postpone(remove_rules_rcu, rule_collection_detach(rules)); | |
4140 | } | |
4141 | } | |
4142 | } | |
4143 | ||
5d08a275 JR |
4144 | /* Schedules postponed removal of groups, destroys 'groups'. */ |
4145 | static void | |
4146 | remove_groups_postponed(struct group_collection *groups) | |
4147 | OVS_REQUIRES(ofproto_mutex) | |
4148 | { | |
4149 | if (group_collection_n(groups) > 0) { | |
4150 | if (group_collection_n(groups) == 1) { | |
4151 | ovsrcu_postpone(remove_group_rcu, | |
4152 | group_collection_groups(groups)[0]); | |
4153 | group_collection_init(groups); | |
4154 | } else { | |
4155 | ovsrcu_postpone(remove_groups_rcu, | |
4156 | group_collection_detach(groups)); | |
4157 | } | |
4158 | } | |
4159 | } | |
4160 | ||
dd51dae2 BP |
4161 | /* Checks whether 'rule' matches 'c' and, if so, adds it to 'rules'. This |
4162 | * function verifies most of the criteria in 'c' itself, but the caller must | |
4163 | * check 'c->cr' itself. | |
4164 | * | |
2b7b1427 | 4165 | * Rules that have already been marked for removal are not collected. |
ce59413f | 4166 | * |
dd51dae2 | 4167 | * Increments '*n_readonly' if 'rule' wasn't added because it's read-only (and |
b20f4073 BP |
4168 | * 'c' only includes modifiable rules). */ |
4169 | static void | |
a9b22b7f | 4170 | collect_rule(struct rule *rule, const struct rule_criteria *c, |
dd51dae2 | 4171 | struct rule_collection *rules, size_t *n_readonly) |
15aaf599 | 4172 | OVS_REQUIRES(ofproto_mutex) |
6c1d7642 | 4173 | { |
dd51dae2 BP |
4174 | if ((c->table_id == rule->table_id || c->table_id == 0xff) |
4175 | && ofproto_rule_has_out_port(rule, c->out_port) | |
4176 | && ofproto_rule_has_out_group(rule, c->out_group) | |
4177 | && !((rule->flow_cookie ^ c->cookie) & c->cookie_mask) | |
ce59413f | 4178 | && (!rule_is_hidden(rule) || c->include_hidden) |
bd53aa17 | 4179 | && cls_rule_visible_in_version(&rule->cr, c->version)) { |
dd51dae2 | 4180 | /* Rule matches all the criteria... */ |
834fe5cb | 4181 | if (!rule_is_readonly(rule) || c->include_readonly) { |
dd51dae2 | 4182 | /* ...add it. */ |
a8e547c1 | 4183 | rule_collection_add(rules, rule); |
dd51dae2 BP |
4184 | } else { |
4185 | /* ...except it's read-only. */ | |
4186 | ++*n_readonly; | |
6c1d7642 | 4187 | } |
6c1d7642 BP |
4188 | } |
4189 | } | |
4190 | ||
a9b22b7f BP |
4191 | /* Searches 'ofproto' for rules that match the criteria in 'criteria'. Matches |
4192 | * on classifiers rules are done in the "loose" way required for OpenFlow | |
4193 | * OFPFC_MODIFY and OFPFC_DELETE requests. Puts the selected rules on list | |
9ed18e46 BP |
4194 | * 'rules'. |
4195 | * | |
9ed18e46 | 4196 | * Returns 0 on success, otherwise an OpenFlow error code. */ |
90bf1e07 | 4197 | static enum ofperr |
a9b22b7f | 4198 | collect_rules_loose(struct ofproto *ofproto, |
a8e547c1 BP |
4199 | const struct rule_criteria *criteria, |
4200 | struct rule_collection *rules) | |
15aaf599 | 4201 | OVS_REQUIRES(ofproto_mutex) |
9ed18e46 | 4202 | { |
d0918789 | 4203 | struct oftable *table; |
554764d1 | 4204 | enum ofperr error = 0; |
dd51dae2 | 4205 | size_t n_readonly = 0; |
48266274 | 4206 | |
a8e547c1 BP |
4207 | rule_collection_init(rules); |
4208 | ||
554764d1 SH |
4209 | if (!check_table_id(ofproto, criteria->table_id)) { |
4210 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
a8e547c1 | 4211 | goto exit; |
48266274 | 4212 | } |
9ed18e46 | 4213 | |
b8266395 | 4214 | if (criteria->cookie_mask == OVS_BE64_MAX) { |
98eaac36 JR |
4215 | struct rule *rule; |
4216 | ||
a9b22b7f BP |
4217 | HINDEX_FOR_EACH_WITH_HASH (rule, cookie_node, |
4218 | hash_cookie(criteria->cookie), | |
98eaac36 | 4219 | &ofproto->cookies) { |
a9b22b7f | 4220 | if (cls_rule_is_loose_match(&rule->cr, &criteria->cr.match)) { |
b20f4073 | 4221 | collect_rule(rule, criteria, rules, &n_readonly); |
98eaac36 JR |
4222 | } |
4223 | } | |
6c1d7642 | 4224 | } else { |
a9b22b7f | 4225 | FOR_EACH_MATCHING_TABLE (table, criteria->table_id, ofproto) { |
6c1d7642 | 4226 | struct rule *rule; |
9ed18e46 | 4227 | |
bd53aa17 JR |
4228 | CLS_FOR_EACH_TARGET (rule, cr, &table->cls, &criteria->cr, |
4229 | criteria->version) { | |
b20f4073 | 4230 | collect_rule(rule, criteria, rules, &n_readonly); |
9ed18e46 BP |
4231 | } |
4232 | } | |
4233 | } | |
48d28ac1 | 4234 | |
a8e547c1 | 4235 | exit: |
fe59694b | 4236 | if (!error && !rule_collection_n(rules) && n_readonly) { |
dd51dae2 BP |
4237 | /* We didn't find any rules to modify. We did find some read-only |
4238 | * rules that we're not allowed to modify, so report that. */ | |
4239 | error = OFPERR_OFPBRC_EPERM; | |
4240 | } | |
a8e547c1 BP |
4241 | if (error) { |
4242 | rule_collection_destroy(rules); | |
4243 | } | |
48d28ac1 | 4244 | return error; |
9ed18e46 BP |
4245 | } |
4246 | ||
a9b22b7f BP |
4247 | /* Searches 'ofproto' for rules that match the criteria in 'criteria'. Matches |
4248 | * on classifiers rules are done in the "strict" way required for OpenFlow | |
4249 | * OFPFC_MODIFY_STRICT and OFPFC_DELETE_STRICT requests. Puts the selected | |
4250 | * rules on list 'rules'. | |
9ed18e46 | 4251 | * |
9ed18e46 | 4252 | * Returns 0 on success, otherwise an OpenFlow error code. */ |
90bf1e07 | 4253 | static enum ofperr |
a9b22b7f | 4254 | collect_rules_strict(struct ofproto *ofproto, |
a8e547c1 BP |
4255 | const struct rule_criteria *criteria, |
4256 | struct rule_collection *rules) | |
15aaf599 | 4257 | OVS_REQUIRES(ofproto_mutex) |
9ed18e46 | 4258 | { |
d0918789 | 4259 | struct oftable *table; |
dd51dae2 | 4260 | size_t n_readonly = 0; |
d51c8b71 | 4261 | enum ofperr error = 0; |
48266274 | 4262 | |
a8e547c1 BP |
4263 | rule_collection_init(rules); |
4264 | ||
554764d1 SH |
4265 | if (!check_table_id(ofproto, criteria->table_id)) { |
4266 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
a8e547c1 | 4267 | goto exit; |
48266274 | 4268 | } |
9ed18e46 | 4269 | |
b8266395 | 4270 | if (criteria->cookie_mask == OVS_BE64_MAX) { |
98eaac36 JR |
4271 | struct rule *rule; |
4272 | ||
a9b22b7f BP |
4273 | HINDEX_FOR_EACH_WITH_HASH (rule, cookie_node, |
4274 | hash_cookie(criteria->cookie), | |
98eaac36 | 4275 | &ofproto->cookies) { |
a9b22b7f | 4276 | if (cls_rule_equal(&rule->cr, &criteria->cr)) { |
b20f4073 | 4277 | collect_rule(rule, criteria, rules, &n_readonly); |
98eaac36 JR |
4278 | } |
4279 | } | |
6c1d7642 | 4280 | } else { |
a9b22b7f | 4281 | FOR_EACH_MATCHING_TABLE (table, criteria->table_id, ofproto) { |
6c1d7642 | 4282 | struct rule *rule; |
9ed18e46 | 4283 | |
a9b22b7f | 4284 | rule = rule_from_cls_rule(classifier_find_rule_exactly( |
bd53aa17 JR |
4285 | &table->cls, &criteria->cr, |
4286 | criteria->version)); | |
6c1d7642 | 4287 | if (rule) { |
b20f4073 | 4288 | collect_rule(rule, criteria, rules, &n_readonly); |
9ed18e46 BP |
4289 | } |
4290 | } | |
4291 | } | |
48d28ac1 | 4292 | |
a8e547c1 | 4293 | exit: |
fe59694b | 4294 | if (!error && !rule_collection_n(rules) && n_readonly) { |
b20f4073 BP |
4295 | /* We didn't find any rules to modify. We did find some read-only |
4296 | * rules that we're not allowed to modify, so report that. */ | |
4297 | error = OFPERR_OFPBRC_EPERM; | |
4298 | } | |
a8e547c1 BP |
4299 | if (error) { |
4300 | rule_collection_destroy(rules); | |
4301 | } | |
6c1d7642 | 4302 | return error; |
9ed18e46 BP |
4303 | } |
4304 | ||
f27f2134 BP |
4305 | /* Returns 'age_ms' (a duration in milliseconds), converted to seconds and |
4306 | * forced into the range of a uint16_t. */ | |
4307 | static int | |
4308 | age_secs(long long int age_ms) | |
4309 | { | |
4310 | return (age_ms < 0 ? 0 | |
4311 | : age_ms >= UINT16_MAX * 1000 ? UINT16_MAX | |
4312 | : (unsigned int) age_ms / 1000); | |
4313 | } | |
4314 | ||
90bf1e07 | 4315 | static enum ofperr |
63f2140a | 4316 | handle_flow_stats_request(struct ofconn *ofconn, |
982697a4 | 4317 | const struct ofp_header *request) |
15aaf599 | 4318 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 4319 | { |
64ff1d96 | 4320 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
81d1ea94 | 4321 | struct ofputil_flow_stats_request fsr; |
a9b22b7f | 4322 | struct rule_criteria criteria; |
a8e547c1 | 4323 | struct rule_collection rules; |
ca6ba700 | 4324 | struct ovs_list replies; |
90bf1e07 | 4325 | enum ofperr error; |
09246b99 | 4326 | |
8d8ab6c2 | 4327 | error = ofputil_decode_flow_stats_request(&fsr, request, |
3cddeff0 YHW |
4328 | ofproto_get_tun_tab(ofproto), |
4329 | &ofproto->vl_mff_map); | |
09246b99 BP |
4330 | if (error) { |
4331 | return error; | |
4332 | } | |
4333 | ||
6a6b7060 BP |
4334 | struct minimatch match; |
4335 | minimatch_init(&match, &fsr.match); | |
4336 | rule_criteria_init(&criteria, fsr.table_id, &match, 0, OVS_VERSION_MAX, | |
2b7b1427 JR |
4337 | fsr.cookie, fsr.cookie_mask, fsr.out_port, |
4338 | fsr.out_group); | |
6a6b7060 | 4339 | minimatch_destroy(&match); |
15aaf599 BP |
4340 | |
4341 | ovs_mutex_lock(&ofproto_mutex); | |
a9b22b7f BP |
4342 | error = collect_rules_loose(ofproto, &criteria, &rules); |
4343 | rule_criteria_destroy(&criteria); | |
15aaf599 BP |
4344 | if (!error) { |
4345 | rule_collection_ref(&rules); | |
4346 | } | |
4347 | ovs_mutex_unlock(&ofproto_mutex); | |
4348 | ||
9ed18e46 BP |
4349 | if (error) { |
4350 | return error; | |
4351 | } | |
5ecc9d81 | 4352 | |
982697a4 | 4353 | ofpmp_init(&replies, request); |
fe59694b JR |
4354 | struct rule *rule; |
4355 | RULE_COLLECTION_FOR_EACH (rule, &rules) { | |
f27f2134 | 4356 | long long int now = time_msec(); |
9ed18e46 | 4357 | struct ofputil_flow_stats fs; |
15aaf599 | 4358 | long long int created, used, modified; |
dc723c44 | 4359 | const struct rule_actions *actions; |
15aaf599 | 4360 | enum ofputil_flow_mod_flags flags; |
a3779dbc | 4361 | |
d10976b7 | 4362 | ovs_mutex_lock(&rule->mutex); |
15aaf599 | 4363 | fs.cookie = rule->flow_cookie; |
a3779dbc EJ |
4364 | fs.idle_timeout = rule->idle_timeout; |
4365 | fs.hard_timeout = rule->hard_timeout; | |
ca26eb44 | 4366 | fs.importance = rule->importance; |
15aaf599 | 4367 | created = rule->created; |
15aaf599 | 4368 | modified = rule->modified; |
06a0f3e2 | 4369 | actions = rule_get_actions(rule); |
15aaf599 | 4370 | flags = rule->flags; |
d10976b7 | 4371 | ovs_mutex_unlock(&rule->mutex); |
a3779dbc | 4372 | |
dc437090 JR |
4373 | ofproto->ofproto_class->rule_get_stats(rule, &fs.packet_count, |
4374 | &fs.byte_count, &used); | |
4375 | ||
15aaf599 BP |
4376 | minimatch_expand(&rule->cr.match, &fs.match); |
4377 | fs.table_id = rule->table_id; | |
4378 | calc_duration(created, now, &fs.duration_sec, &fs.duration_nsec); | |
4379 | fs.priority = rule->cr.priority; | |
4380 | fs.idle_age = age_secs(now - used); | |
4381 | fs.hard_age = age_secs(now - modified); | |
15aaf599 BP |
4382 | fs.ofpacts = actions->ofpacts; |
4383 | fs.ofpacts_len = actions->ofpacts_len; | |
3f517bcd | 4384 | |
15aaf599 | 4385 | fs.flags = flags; |
8d8ab6c2 JG |
4386 | ofputil_append_flow_stats_reply(&fs, &replies, |
4387 | ofproto_get_tun_tab(ofproto)); | |
3c4486a5 | 4388 | } |
15aaf599 BP |
4389 | |
4390 | rule_collection_unref(&rules); | |
a8e547c1 BP |
4391 | rule_collection_destroy(&rules); |
4392 | ||
63f2140a | 4393 | ofconn_send_replies(ofconn, &replies); |
5ecc9d81 | 4394 | |
09246b99 BP |
4395 | return 0; |
4396 | } | |
4397 | ||
4f2cad2c | 4398 | static void |
8d8ab6c2 | 4399 | flow_stats_ds(struct ofproto *ofproto, struct rule *rule, struct ds *results) |
4f2cad2c | 4400 | { |
4f2cad2c | 4401 | uint64_t packet_count, byte_count; |
dc723c44 | 4402 | const struct rule_actions *actions; |
dc437090 | 4403 | long long int created, used; |
4f2cad2c | 4404 | |
dc437090 JR |
4405 | rule->ofproto->ofproto_class->rule_get_stats(rule, &packet_count, |
4406 | &byte_count, &used); | |
4f2cad2c | 4407 | |
15aaf599 | 4408 | ovs_mutex_lock(&rule->mutex); |
06a0f3e2 | 4409 | actions = rule_get_actions(rule); |
15aaf599 BP |
4410 | created = rule->created; |
4411 | ovs_mutex_unlock(&rule->mutex); | |
4412 | ||
6c1491fb BP |
4413 | if (rule->table_id != 0) { |
4414 | ds_put_format(results, "table_id=%"PRIu8", ", rule->table_id); | |
4415 | } | |
15aaf599 | 4416 | ds_put_format(results, "duration=%llds, ", (time_msec() - created) / 1000); |
4f2cad2c JP |
4417 | ds_put_format(results, "n_packets=%"PRIu64", ", packet_count); |
4418 | ds_put_format(results, "n_bytes=%"PRIu64", ", byte_count); | |
50f96b10 | 4419 | cls_rule_format(&rule->cr, ofproto_get_tun_tab(ofproto), NULL, results); |
a5df0e72 | 4420 | ds_put_char(results, ','); |
15aaf599 | 4421 | |
455ecd77 | 4422 | ds_put_cstr(results, "actions="); |
efefbcae BP |
4423 | struct ofpact_format_params fp = { .s = results }; |
4424 | ofpacts_format(actions->ofpacts, actions->ofpacts_len, &fp); | |
15aaf599 | 4425 | |
4f2cad2c JP |
4426 | ds_put_cstr(results, "\n"); |
4427 | } | |
4428 | ||
d295e8e9 | 4429 | /* Adds a pretty-printed description of all flows to 'results', including |
ee8b231c | 4430 | * hidden flows (e.g., set up by in-band control). */ |
4f2cad2c JP |
4431 | void |
4432 | ofproto_get_all_flows(struct ofproto *p, struct ds *results) | |
4433 | { | |
d0918789 | 4434 | struct oftable *table; |
6c1491fb | 4435 | |
d0918789 | 4436 | OFPROTO_FOR_EACH_TABLE (table, p) { |
6c1491fb | 4437 | struct rule *rule; |
064af421 | 4438 | |
5f0476ce | 4439 | CLS_FOR_EACH (rule, cr, &table->cls) { |
8d8ab6c2 | 4440 | flow_stats_ds(p, rule, results); |
6c1491fb | 4441 | } |
064af421 | 4442 | } |
064af421 BP |
4443 | } |
4444 | ||
b5827b24 BP |
4445 | /* Obtains the NetFlow engine type and engine ID for 'ofproto' into |
4446 | * '*engine_type' and '*engine_id', respectively. */ | |
4447 | void | |
4448 | ofproto_get_netflow_ids(const struct ofproto *ofproto, | |
4449 | uint8_t *engine_type, uint8_t *engine_id) | |
4450 | { | |
abe529af | 4451 | ofproto->ofproto_class->get_netflow_ids(ofproto, engine_type, engine_id); |
b5827b24 BP |
4452 | } |
4453 | ||
8f5514fe AW |
4454 | /* Checks the status change of CFM on 'ofport'. |
4455 | * | |
4456 | * Returns true if 'ofproto_class' does not support 'cfm_status_changed'. */ | |
4457 | bool | |
4458 | ofproto_port_cfm_status_changed(struct ofproto *ofproto, ofp_port_t ofp_port) | |
4459 | { | |
4460 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
4461 | return (ofport && ofproto->ofproto_class->cfm_status_changed | |
4462 | ? ofproto->ofproto_class->cfm_status_changed(ofport) | |
4463 | : true); | |
4464 | } | |
4465 | ||
88bf179a AW |
4466 | /* Checks the status of CFM configured on 'ofp_port' within 'ofproto'. |
4467 | * Returns 0 if the port's CFM status was successfully stored into | |
4468 | * '*status'. Returns positive errno if the port did not have CFM | |
8f5514fe | 4469 | * configured. |
9a9e3786 | 4470 | * |
88bf179a AW |
4471 | * The caller must provide and own '*status', and must free 'status->rmps'. |
4472 | * '*status' is indeterminate if the return value is non-zero. */ | |
4473 | int | |
4e022ec0 | 4474 | ofproto_port_get_cfm_status(const struct ofproto *ofproto, ofp_port_t ofp_port, |
685acfd9 | 4475 | struct cfm_status *status) |
3967a833 MM |
4476 | { |
4477 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
88bf179a AW |
4478 | return (ofport && ofproto->ofproto_class->get_cfm_status |
4479 | ? ofproto->ofproto_class->get_cfm_status(ofport, status) | |
4480 | : EOPNOTSUPP); | |
3967a833 MM |
4481 | } |
4482 | ||
90bf1e07 | 4483 | static enum ofperr |
76c93b22 | 4484 | handle_aggregate_stats_request(struct ofconn *ofconn, |
982697a4 | 4485 | const struct ofp_header *oh) |
15aaf599 | 4486 | OVS_EXCLUDED(ofproto_mutex) |
27d34fce | 4487 | { |
76c93b22 | 4488 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
81d1ea94 | 4489 | struct ofputil_flow_stats_request request; |
76c93b22 | 4490 | struct ofputil_aggregate_stats stats; |
5e9d0469 | 4491 | bool unknown_packets, unknown_bytes; |
a9b22b7f | 4492 | struct rule_criteria criteria; |
a8e547c1 | 4493 | struct rule_collection rules; |
76c93b22 | 4494 | struct ofpbuf *reply; |
90bf1e07 | 4495 | enum ofperr error; |
27d34fce | 4496 | |
8d8ab6c2 | 4497 | error = ofputil_decode_flow_stats_request(&request, oh, |
3cddeff0 YHW |
4498 | ofproto_get_tun_tab(ofproto), |
4499 | &ofproto->vl_mff_map); | |
76c93b22 BP |
4500 | if (error) { |
4501 | return error; | |
4502 | } | |
5ecc9d81 | 4503 | |
6a6b7060 BP |
4504 | struct minimatch match; |
4505 | minimatch_init(&match, &request.match); | |
4506 | rule_criteria_init(&criteria, request.table_id, &match, 0, | |
44e0c35d | 4507 | OVS_VERSION_MAX, request.cookie, request.cookie_mask, |
a9b22b7f | 4508 | request.out_port, request.out_group); |
6a6b7060 | 4509 | minimatch_destroy(&match); |
15aaf599 BP |
4510 | |
4511 | ovs_mutex_lock(&ofproto_mutex); | |
a9b22b7f BP |
4512 | error = collect_rules_loose(ofproto, &criteria, &rules); |
4513 | rule_criteria_destroy(&criteria); | |
15aaf599 BP |
4514 | if (!error) { |
4515 | rule_collection_ref(&rules); | |
4516 | } | |
4517 | ovs_mutex_unlock(&ofproto_mutex); | |
4518 | ||
9ed18e46 BP |
4519 | if (error) { |
4520 | return error; | |
4521 | } | |
3c4486a5 | 4522 | |
9ed18e46 | 4523 | memset(&stats, 0, sizeof stats); |
5e9d0469 | 4524 | unknown_packets = unknown_bytes = false; |
fe59694b JR |
4525 | |
4526 | struct rule *rule; | |
4527 | RULE_COLLECTION_FOR_EACH (rule, &rules) { | |
9ed18e46 BP |
4528 | uint64_t packet_count; |
4529 | uint64_t byte_count; | |
dc437090 | 4530 | long long int used; |
5ecc9d81 | 4531 | |
9ed18e46 | 4532 | ofproto->ofproto_class->rule_get_stats(rule, &packet_count, |
dc437090 | 4533 | &byte_count, &used); |
5ecc9d81 | 4534 | |
5e9d0469 BP |
4535 | if (packet_count == UINT64_MAX) { |
4536 | unknown_packets = true; | |
4537 | } else { | |
4538 | stats.packet_count += packet_count; | |
4539 | } | |
4540 | ||
4541 | if (byte_count == UINT64_MAX) { | |
4542 | unknown_bytes = true; | |
4543 | } else { | |
4544 | stats.byte_count += byte_count; | |
4545 | } | |
4546 | ||
9ed18e46 | 4547 | stats.flow_count++; |
3c4486a5 | 4548 | } |
5e9d0469 BP |
4549 | if (unknown_packets) { |
4550 | stats.packet_count = UINT64_MAX; | |
4551 | } | |
4552 | if (unknown_bytes) { | |
4553 | stats.byte_count = UINT64_MAX; | |
4554 | } | |
27d34fce | 4555 | |
15aaf599 | 4556 | rule_collection_unref(&rules); |
a8e547c1 BP |
4557 | rule_collection_destroy(&rules); |
4558 | ||
982697a4 | 4559 | reply = ofputil_encode_aggregate_stats_reply(&stats, oh); |
76c93b22 | 4560 | ofconn_send_reply(ofconn, reply); |
09246b99 BP |
4561 | |
4562 | return 0; | |
4563 | } | |
4564 | ||
c1c9c9c4 | 4565 | struct queue_stats_cbdata { |
ca0f572c | 4566 | struct ofport *ofport; |
ca6ba700 | 4567 | struct ovs_list replies; |
6dc34a0d | 4568 | long long int now; |
c1c9c9c4 BP |
4569 | }; |
4570 | ||
4571 | static void | |
db9220c3 | 4572 | put_queue_stats(struct queue_stats_cbdata *cbdata, uint32_t queue_id, |
c1c9c9c4 BP |
4573 | const struct netdev_queue_stats *stats) |
4574 | { | |
6dc34a0d | 4575 | struct ofputil_queue_stats oqs; |
c1c9c9c4 | 4576 | |
6dc34a0d BP |
4577 | oqs.port_no = cbdata->ofport->pp.port_no; |
4578 | oqs.queue_id = queue_id; | |
4579 | oqs.tx_bytes = stats->tx_bytes; | |
4580 | oqs.tx_packets = stats->tx_packets; | |
4581 | oqs.tx_errors = stats->tx_errors; | |
4582 | if (stats->created != LLONG_MIN) { | |
4583 | calc_duration(stats->created, cbdata->now, | |
4584 | &oqs.duration_sec, &oqs.duration_nsec); | |
4585 | } else { | |
4586 | oqs.duration_sec = oqs.duration_nsec = UINT32_MAX; | |
4587 | } | |
64626975 | 4588 | ofputil_append_queue_stat(&cbdata->replies, &oqs); |
c1c9c9c4 BP |
4589 | } |
4590 | ||
4591 | static void | |
db9220c3 | 4592 | handle_queue_stats_dump_cb(uint32_t queue_id, |
c1c9c9c4 BP |
4593 | struct netdev_queue_stats *stats, |
4594 | void *cbdata_) | |
4595 | { | |
4596 | struct queue_stats_cbdata *cbdata = cbdata_; | |
4597 | ||
4598 | put_queue_stats(cbdata, queue_id, stats); | |
4599 | } | |
4600 | ||
0414d158 | 4601 | static enum ofperr |
ca0f572c | 4602 | handle_queue_stats_for_port(struct ofport *port, uint32_t queue_id, |
c1c9c9c4 BP |
4603 | struct queue_stats_cbdata *cbdata) |
4604 | { | |
ca0f572c | 4605 | cbdata->ofport = port; |
c1c9c9c4 BP |
4606 | if (queue_id == OFPQ_ALL) { |
4607 | netdev_dump_queue_stats(port->netdev, | |
4608 | handle_queue_stats_dump_cb, cbdata); | |
4609 | } else { | |
4610 | struct netdev_queue_stats stats; | |
4611 | ||
1ac788f6 BP |
4612 | if (!netdev_get_queue_stats(port->netdev, queue_id, &stats)) { |
4613 | put_queue_stats(cbdata, queue_id, &stats); | |
0414d158 BP |
4614 | } else { |
4615 | return OFPERR_OFPQOFC_BAD_QUEUE; | |
1ac788f6 | 4616 | } |
c1c9c9c4 | 4617 | } |
0414d158 | 4618 | return 0; |
c1c9c9c4 BP |
4619 | } |
4620 | ||
90bf1e07 | 4621 | static enum ofperr |
63f2140a | 4622 | handle_queue_stats_request(struct ofconn *ofconn, |
982697a4 | 4623 | const struct ofp_header *rq) |
c1c9c9c4 | 4624 | { |
64ff1d96 | 4625 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
c1c9c9c4 | 4626 | struct queue_stats_cbdata cbdata; |
0414d158 | 4627 | struct ofport *port; |
0414d158 | 4628 | enum ofperr error; |
64626975 | 4629 | struct ofputil_queue_stats_request oqsr; |
c1c9c9c4 | 4630 | |
c1c9c9c4 BP |
4631 | COVERAGE_INC(ofproto_queue_req); |
4632 | ||
982697a4 | 4633 | ofpmp_init(&cbdata.replies, rq); |
6dc34a0d | 4634 | cbdata.now = time_msec(); |
c1c9c9c4 | 4635 | |
64626975 SH |
4636 | error = ofputil_decode_queue_stats_request(rq, &oqsr); |
4637 | if (error) { | |
4638 | return error; | |
4639 | } | |
4640 | ||
7f05e7ab | 4641 | if (oqsr.port_no == OFPP_ANY) { |
0414d158 | 4642 | error = OFPERR_OFPQOFC_BAD_QUEUE; |
4e8e4213 | 4643 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
64626975 | 4644 | if (!handle_queue_stats_for_port(port, oqsr.queue_id, &cbdata)) { |
0414d158 BP |
4645 | error = 0; |
4646 | } | |
c1c9c9c4 | 4647 | } |
0414d158 | 4648 | } else { |
64626975 | 4649 | port = ofproto_get_port(ofproto, oqsr.port_no); |
0414d158 | 4650 | error = (port |
64626975 | 4651 | ? handle_queue_stats_for_port(port, oqsr.queue_id, &cbdata) |
0414d158 BP |
4652 | : OFPERR_OFPQOFC_BAD_PORT); |
4653 | } | |
4654 | if (!error) { | |
4655 | ofconn_send_replies(ofconn, &cbdata.replies); | |
c1c9c9c4 | 4656 | } else { |
63f2140a | 4657 | ofpbuf_list_delete(&cbdata.replies); |
c1c9c9c4 | 4658 | } |
c1c9c9c4 | 4659 | |
0414d158 | 4660 | return error; |
c1c9c9c4 | 4661 | } |
7ee20df1 | 4662 | |
2e31a9b8 | 4663 | static enum ofperr |
6787a49f | 4664 | evict_rules_from_table(struct oftable *table) |
15aaf599 | 4665 | OVS_REQUIRES(ofproto_mutex) |
2e31a9b8 | 4666 | { |
802f84ff JR |
4667 | enum ofperr error = 0; |
4668 | struct rule_collection rules; | |
6787a49f | 4669 | unsigned int count = table->n_flows; |
802f84ff JR |
4670 | unsigned int max_flows = table->max_flows; |
4671 | ||
4672 | rule_collection_init(&rules); | |
4673 | ||
4674 | while (count-- > max_flows) { | |
2e31a9b8 | 4675 | struct rule *rule; |
8037acb4 | 4676 | |
2e31a9b8 | 4677 | if (!choose_rule_to_evict(table, &rule)) { |
802f84ff JR |
4678 | error = OFPERR_OFPFMFC_TABLE_FULL; |
4679 | break; | |
2e31a9b8 | 4680 | } else { |
802f84ff JR |
4681 | eviction_group_remove_rule(rule); |
4682 | rule_collection_add(&rules, rule); | |
2e31a9b8 | 4683 | } |
8037acb4 | 4684 | } |
802f84ff | 4685 | delete_flows__(&rules, OFPRR_EVICTION, NULL); |
2e31a9b8 | 4686 | |
802f84ff | 4687 | return error; |
8037acb4 BP |
4688 | } |
4689 | ||
18080541 BP |
4690 | static void |
4691 | get_conjunctions(const struct ofputil_flow_mod *fm, | |
4692 | struct cls_conjunction **conjsp, size_t *n_conjsp) | |
18080541 BP |
4693 | { |
4694 | struct cls_conjunction *conjs = NULL; | |
4695 | int n_conjs = 0; | |
4696 | ||
f08e39dd BP |
4697 | const struct ofpact *ofpact; |
4698 | OFPACT_FOR_EACH (ofpact, fm->ofpacts, fm->ofpacts_len) { | |
4699 | if (ofpact->type == OFPACT_CONJUNCTION) { | |
18080541 | 4700 | n_conjs++; |
f08e39dd BP |
4701 | } else if (ofpact->type != OFPACT_NOTE) { |
4702 | /* "conjunction" may appear with "note" actions but not with any | |
4703 | * other type of actions. */ | |
4704 | ovs_assert(!n_conjs); | |
4705 | break; | |
18080541 | 4706 | } |
f08e39dd BP |
4707 | } |
4708 | if (n_conjs) { | |
4709 | int i = 0; | |
18080541 BP |
4710 | |
4711 | conjs = xzalloc(n_conjs * sizeof *conjs); | |
18080541 | 4712 | OFPACT_FOR_EACH (ofpact, fm->ofpacts, fm->ofpacts_len) { |
f08e39dd BP |
4713 | if (ofpact->type == OFPACT_CONJUNCTION) { |
4714 | struct ofpact_conjunction *oc = ofpact_get_CONJUNCTION(ofpact); | |
4715 | conjs[i].clause = oc->clause; | |
4716 | conjs[i].n_clauses = oc->n_clauses; | |
4717 | conjs[i].id = oc->id; | |
4718 | i++; | |
4719 | } | |
18080541 BP |
4720 | } |
4721 | } | |
4722 | ||
4723 | *conjsp = conjs; | |
4724 | *n_conjsp = n_conjs; | |
4725 | } | |
4726 | ||
5bacd5cd JR |
4727 | /* add_flow_init(), add_flow_start(), add_flow_revert(), and add_flow_finish() |
4728 | * implement OFPFC_ADD and the cases for OFPFC_MODIFY and OFPFC_MODIFY_STRICT | |
1f42be1c JR |
4729 | * in which no matching flow already exists in the flow table. |
4730 | * | |
5bacd5cd JR |
4731 | * add_flow_init() creates a new flow according to 'fm' and stores it to 'ofm' |
4732 | * for later reference. If the flow replaces other flow, it will be updated to | |
4733 | * match modify semantics later by add_flow_start() (by calling | |
4734 | * replace_rule_start()). | |
1f42be1c | 4735 | * |
5bacd5cd | 4736 | * Returns 0 on success, or an OpenFlow error code on failure. |
1f42be1c | 4737 | * |
5bacd5cd JR |
4738 | * On successful return the caller must complete the operation by calling |
4739 | * add_flow_start(), and if that succeeds, then either add_flow_finish(), or | |
4740 | * add_flow_revert() if the operation needs to be reverted due to a later | |
4741 | * failure. | |
4742 | */ | |
90bf1e07 | 4743 | static enum ofperr |
5bacd5cd JR |
4744 | add_flow_init(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
4745 | const struct ofputil_flow_mod *fm) | |
4746 | OVS_EXCLUDED(ofproto_mutex) | |
064af421 | 4747 | { |
d0918789 | 4748 | struct oftable *table; |
8037acb4 | 4749 | struct cls_rule cr; |
5a361239 | 4750 | uint8_t table_id; |
39c94593 | 4751 | enum ofperr error; |
064af421 | 4752 | |
554764d1 | 4753 | if (!check_table_id(ofproto, fm->table_id)) { |
5bacd5cd | 4754 | return OFPERR_OFPBRC_BAD_TABLE_ID; |
48266274 BP |
4755 | } |
4756 | ||
7ee20df1 BP |
4757 | /* Pick table. */ |
4758 | if (fm->table_id == 0xff) { | |
13521ff5 | 4759 | if (ofproto->ofproto_class->rule_choose_table) { |
81a76618 BP |
4760 | error = ofproto->ofproto_class->rule_choose_table(ofproto, |
4761 | &fm->match, | |
7ee20df1 BP |
4762 | &table_id); |
4763 | if (error) { | |
4764 | return error; | |
4765 | } | |
cb22974d | 4766 | ovs_assert(table_id < ofproto->n_tables); |
7ee20df1 | 4767 | } else { |
5a361239 | 4768 | table_id = 0; |
7ee20df1 BP |
4769 | } |
4770 | } else if (fm->table_id < ofproto->n_tables) { | |
5a361239 | 4771 | table_id = fm->table_id; |
7ee20df1 | 4772 | } else { |
c22c56bd | 4773 | return OFPERR_OFPBRC_BAD_TABLE_ID; |
064af421 BP |
4774 | } |
4775 | ||
5a361239 | 4776 | table = &ofproto->tables[table_id]; |
834fe5cb BP |
4777 | if (table->flags & OFTABLE_READONLY |
4778 | && !(fm->flags & OFPUTIL_FF_NO_READONLY)) { | |
5c67e4af BP |
4779 | return OFPERR_OFPBRC_EPERM; |
4780 | } | |
4781 | ||
c84d8691 | 4782 | if (!(fm->flags & OFPUTIL_FF_HIDDEN_FIELDS) |
6a6b7060 | 4783 | && !minimatch_has_default_hidden_fields(&fm->match)) { |
c84d8691 JR |
4784 | VLOG_WARN_RL(&rl, "%s: (add_flow) only internal flows can set " |
4785 | "non-default values to hidden fields", ofproto->name); | |
4786 | return OFPERR_OFPBRC_EPERM; | |
adcf00ba AZ |
4787 | } |
4788 | ||
2c7ee524 | 4789 | if (!ofm->temp_rule) { |
6a6b7060 | 4790 | cls_rule_init_from_minimatch(&cr, &fm->match, fm->priority); |
8037acb4 | 4791 | |
2c7ee524 | 4792 | /* Allocate new rule. Destroys 'cr'. */ |
6a6b7060 | 4793 | uint64_t map = miniflow_get_tun_metadata_present_map(fm->match.flow); |
2c7ee524 JR |
4794 | error = ofproto_rule_create(ofproto, &cr, table - ofproto->tables, |
4795 | fm->new_cookie, fm->idle_timeout, | |
4796 | fm->hard_timeout, fm->flags, | |
4797 | fm->importance, fm->ofpacts, | |
6a6b7060 | 4798 | fm->ofpacts_len, map, |
5c7c16d8 | 4799 | fm->ofpacts_tlv_bitmap, &ofm->temp_rule); |
2c7ee524 JR |
4800 | if (error) { |
4801 | return error; | |
4802 | } | |
5bacd5cd | 4803 | |
2c7ee524 JR |
4804 | get_conjunctions(fm, &ofm->conjs, &ofm->n_conjs); |
4805 | } | |
5bacd5cd JR |
4806 | return 0; |
4807 | } | |
4808 | ||
2c7ee524 | 4809 | /* ofm->temp_rule is consumed only in the successful case. */ |
5bacd5cd JR |
4810 | static enum ofperr |
4811 | add_flow_start(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) | |
4812 | OVS_REQUIRES(ofproto_mutex) | |
4813 | { | |
4814 | struct rule *old_rule = NULL; | |
4815 | struct rule *new_rule = ofm->temp_rule; | |
4816 | const struct rule_actions *actions = rule_get_actions(new_rule); | |
4817 | struct oftable *table = &ofproto->tables[new_rule->table_id]; | |
4818 | enum ofperr error; | |
4819 | ||
4820 | /* Must check actions while holding ofproto_mutex to avoid a race. */ | |
4821 | error = ofproto_check_ofpacts(ofproto, actions->ofpacts, | |
4822 | actions->ofpacts_len); | |
4823 | if (error) { | |
4824 | return error; | |
4825 | } | |
4826 | ||
1f42be1c | 4827 | /* Check for the existence of an identical rule. |
2b7b1427 | 4828 | * This will not return rules earlier marked for removal. */ |
5bacd5cd JR |
4829 | old_rule = rule_from_cls_rule(classifier_find_rule_exactly(&table->cls, |
4830 | &new_rule->cr, | |
4831 | ofm->version)); | |
4832 | if (!old_rule) { | |
c84d8691 | 4833 | /* Check for overlap, if requested. */ |
5bacd5cd JR |
4834 | if (new_rule->flags & OFPUTIL_FF_CHECK_OVERLAP |
4835 | && classifier_rule_overlaps(&table->cls, &new_rule->cr, | |
4836 | ofm->version)) { | |
c84d8691 | 4837 | return OFPERR_OFPFMFC_OVERLAP; |
dd27be82 | 4838 | } |
b277c7cc | 4839 | |
c84d8691 | 4840 | /* If necessary, evict an existing rule to clear out space. */ |
6787a49f | 4841 | if (table->n_flows >= table->max_flows) { |
5bacd5cd JR |
4842 | if (!choose_rule_to_evict(table, &old_rule)) { |
4843 | return OFPERR_OFPFMFC_TABLE_FULL; | |
6787a49f | 4844 | } |
5bacd5cd JR |
4845 | eviction_group_remove_rule(old_rule); |
4846 | /* Marks 'old_rule' as an evicted rule rather than replaced rule. | |
6787a49f | 4847 | */ |
5bacd5cd | 4848 | old_rule->removed_reason = OFPRR_EVICTION; |
c09f755d | 4849 | } |
39c94593 | 4850 | } else { |
7338102b | 4851 | ofm->modify_cookie = true; |
39c94593 | 4852 | } |
81a76618 | 4853 | |
5bacd5cd JR |
4854 | if (old_rule) { |
4855 | rule_collection_add(&ofm->old_rules, old_rule); | |
064af421 | 4856 | } |
5bacd5cd | 4857 | /* Take ownership of the temp_rule. */ |
58026109 | 4858 | rule_collection_add(&ofm->new_rules, new_rule); |
5bacd5cd | 4859 | ofm->temp_rule = NULL; |
8037acb4 | 4860 | |
5bacd5cd | 4861 | replace_rule_start(ofproto, ofm, old_rule, new_rule); |
c84d8691 JR |
4862 | return 0; |
4863 | } | |
1ebeaaa7 | 4864 | |
6787a49f | 4865 | /* Revert the effects of add_flow_start(). */ |
1f42be1c | 4866 | static void |
8be00367 | 4867 | add_flow_revert(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
1f42be1c JR |
4868 | OVS_REQUIRES(ofproto_mutex) |
4869 | { | |
5bacd5cd | 4870 | struct rule *old_rule = rule_collection_n(&ofm->old_rules) |
58026109 JR |
4871 | ? rule_collection_rules(&ofm->old_rules)[0] : NULL; |
4872 | struct rule *new_rule = rule_collection_rules(&ofm->new_rules)[0]; | |
8be00367 | 4873 | |
39c94593 | 4874 | replace_rule_revert(ofproto, old_rule, new_rule); |
1f42be1c JR |
4875 | } |
4876 | ||
39c94593 | 4877 | /* To be called after version bump. */ |
c84d8691 | 4878 | static void |
8be00367 | 4879 | add_flow_finish(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
0a0d9385 | 4880 | const struct openflow_mod_requester *req) |
c84d8691 JR |
4881 | OVS_REQUIRES(ofproto_mutex) |
4882 | { | |
5bacd5cd | 4883 | struct rule *old_rule = rule_collection_n(&ofm->old_rules) |
58026109 JR |
4884 | ? rule_collection_rules(&ofm->old_rules)[0] : NULL; |
4885 | struct rule *new_rule = rule_collection_rules(&ofm->new_rules)[0]; | |
39c94593 | 4886 | struct ovs_list dead_cookies = OVS_LIST_INITIALIZER(&dead_cookies); |
8037acb4 | 4887 | |
81dee635 | 4888 | replace_rule_finish(ofproto, ofm, req, old_rule, new_rule, &dead_cookies); |
39c94593 | 4889 | learned_cookies_flush(ofproto, &dead_cookies); |
802f84ff | 4890 | |
39c94593 JR |
4891 | if (old_rule) { |
4892 | ovsrcu_postpone(remove_rule_rcu, old_rule); | |
4893 | } else { | |
39c94593 | 4894 | ofmonitor_report(ofproto->connmgr, new_rule, NXFME_ADDED, 0, |
c84d8691 JR |
4895 | req ? req->ofconn : NULL, |
4896 | req ? req->request->xid : 0, NULL); | |
6c6eedc5 SJ |
4897 | |
4898 | /* Send Vacancy Events for OF1.4+. */ | |
4899 | send_table_status(ofproto, new_rule->table_id); | |
c84d8691 | 4900 | } |
c84d8691 | 4901 | } |
79eee1eb BP |
4902 | \f |
4903 | /* OFPFC_MODIFY and OFPFC_MODIFY_STRICT. */ | |
064af421 | 4904 | |
5bacd5cd | 4905 | /* Create a new rule. Note that the rule is NOT inserted into a any data |
2c7ee524 JR |
4906 | * structures yet. Takes ownership of 'cr'. Only assigns '*new_rule' if |
4907 | * successful. */ | |
90bf1e07 | 4908 | static enum ofperr |
5bacd5cd JR |
4909 | ofproto_rule_create(struct ofproto *ofproto, struct cls_rule *cr, |
4910 | uint8_t table_id, ovs_be64 new_cookie, | |
4911 | uint16_t idle_timeout, uint16_t hard_timeout, | |
4912 | enum ofputil_flow_mod_flags flags, uint16_t importance, | |
4913 | const struct ofpact *ofpacts, size_t ofpacts_len, | |
5c7c16d8 | 4914 | uint64_t match_tlv_bitmap, uint64_t ofpacts_tlv_bitmap, |
5bacd5cd JR |
4915 | struct rule **new_rule) |
4916 | OVS_NO_THREAD_SAFETY_ANALYSIS | |
79eee1eb | 4917 | { |
39c94593 | 4918 | struct rule *rule; |
dd27be82 | 4919 | enum ofperr error; |
79eee1eb | 4920 | |
39c94593 JR |
4921 | /* Allocate new rule. */ |
4922 | rule = ofproto->ofproto_class->rule_alloc(); | |
4923 | if (!rule) { | |
4924 | cls_rule_destroy(cr); | |
4925 | VLOG_WARN_RL(&rl, "%s: failed to allocate a rule.", ofproto->name); | |
4926 | return OFPERR_OFPFMFC_UNKNOWN; | |
af822017 BP |
4927 | } |
4928 | ||
39c94593 JR |
4929 | /* Initialize base state. */ |
4930 | *CONST_CAST(struct ofproto **, &rule->ofproto) = ofproto; | |
4931 | cls_rule_move(CONST_CAST(struct cls_rule *, &rule->cr), cr); | |
4932 | ovs_refcount_init(&rule->ref_count); | |
834fe5cb | 4933 | |
39c94593 JR |
4934 | ovs_mutex_init(&rule->mutex); |
4935 | ovs_mutex_lock(&rule->mutex); | |
82a3160e | 4936 | *CONST_CAST(ovs_be64 *, &rule->flow_cookie) = new_cookie; |
5bacd5cd JR |
4937 | rule->created = rule->modified = time_msec(); |
4938 | rule->idle_timeout = idle_timeout; | |
4939 | rule->hard_timeout = hard_timeout; | |
4940 | *CONST_CAST(uint16_t *, &rule->importance) = importance; | |
f695ebfa | 4941 | rule->removed_reason = OVS_OFPRR_NONE; |
834fe5cb | 4942 | |
39c94593 | 4943 | *CONST_CAST(uint8_t *, &rule->table_id) = table_id; |
5bacd5cd JR |
4944 | rule->flags = flags & OFPUTIL_FF_STATE; |
4945 | ||
39c94593 | 4946 | *CONST_CAST(const struct rule_actions **, &rule->actions) |
5bacd5cd JR |
4947 | = rule_actions_create(ofpacts, ofpacts_len); |
4948 | ||
417e7e66 | 4949 | ovs_list_init(&rule->meter_list_node); |
39c94593 | 4950 | rule->eviction_group = NULL; |
39c94593 JR |
4951 | rule->monitor_flags = 0; |
4952 | rule->add_seqno = 0; | |
4953 | rule->modify_seqno = 0; | |
5bacd5cd | 4954 | ovs_list_init(&rule->expirable); |
dd27be82 JR |
4955 | ovs_mutex_unlock(&rule->mutex); |
4956 | ||
39c94593 JR |
4957 | /* Construct rule, initializing derived state. */ |
4958 | error = ofproto->ofproto_class->rule_construct(rule); | |
4959 | if (error) { | |
4960 | ofproto_rule_destroy__(rule); | |
4961 | return error; | |
dd27be82 | 4962 | } |
b277c7cc | 4963 | |
30d0452c | 4964 | rule->state = RULE_INITIALIZED; |
5c7c16d8 YHW |
4965 | rule->match_tlv_bitmap = match_tlv_bitmap; |
4966 | rule->ofpacts_tlv_bitmap = ofpacts_tlv_bitmap; | |
4967 | mf_vl_mff_ref(&rule->ofproto->vl_mff_map, match_tlv_bitmap); | |
4968 | mf_vl_mff_ref(&rule->ofproto->vl_mff_map, ofpacts_tlv_bitmap); | |
dd27be82 | 4969 | |
39c94593 JR |
4970 | *new_rule = rule; |
4971 | return 0; | |
4972 | } | |
884e1dc4 | 4973 | |
2c7ee524 JR |
4974 | /* Initialize 'ofm' for a learn action. If the rule already existed, reference |
4975 | * to that rule is taken, otherwise a new rule is created. 'ofm' keeps the | |
4976 | * rule reference in both. This does not take the global 'ofproto_mutex'. */ | |
4977 | enum ofperr | |
4978 | ofproto_flow_mod_init_for_learn(struct ofproto *ofproto, | |
4979 | const struct ofputil_flow_mod *fm, | |
4980 | struct ofproto_flow_mod *ofm) | |
4981 | OVS_EXCLUDED(ofproto_mutex) | |
4982 | { | |
2c7ee524 JR |
4983 | /* Reject flow mods that do not look like they were generated by a learn |
4984 | * action. */ | |
4985 | if (fm->command != OFPFC_MODIFY_STRICT || fm->table_id == OFPTT_ALL | |
4986 | || fm->flags & OFPUTIL_FF_RESET_COUNTS | |
4987 | || fm->buffer_id != UINT32_MAX) { | |
4988 | return OFPERR_OFPFMFC_UNKNOWN; | |
4989 | } | |
4990 | ||
4991 | /* Check if the rule already exists, and we can get a reference to it. */ | |
4992 | struct oftable *table = &ofproto->tables[fm->table_id]; | |
4993 | struct rule *rule; | |
4994 | ||
6a6b7060 | 4995 | rule = rule_from_cls_rule(classifier_find_minimatch_exactly( |
2c7ee524 JR |
4996 | &table->cls, &fm->match, fm->priority, |
4997 | OVS_VERSION_MAX)); | |
4998 | if (rule) { | |
4999 | /* Check if the rule's attributes match as well. */ | |
5000 | const struct rule_actions *actions; | |
5001 | ||
5002 | ovs_mutex_lock(&rule->mutex); | |
5003 | actions = rule_get_actions(rule); | |
5004 | if (rule->idle_timeout == fm->idle_timeout | |
5005 | && rule->hard_timeout == fm->hard_timeout | |
5006 | && rule->importance == fm->importance | |
5007 | && rule->flags == (fm->flags & OFPUTIL_FF_STATE) | |
5008 | && (!fm->modify_cookie || (fm->new_cookie == rule->flow_cookie)) | |
5009 | && ofpacts_equal(fm->ofpacts, fm->ofpacts_len, | |
5010 | actions->ofpacts, actions->ofpacts_len)) { | |
5011 | /* Rule already exists and need not change, except for the modified | |
5012 | * timestamp. Get a reference to the existing rule. */ | |
5013 | ovs_mutex_unlock(&rule->mutex); | |
5014 | if (!ofproto_rule_try_ref(rule)) { | |
5015 | rule = NULL; /* Pretend it did not exist. */ | |
5016 | } | |
5017 | } else { | |
5018 | ovs_mutex_unlock(&rule->mutex); | |
5019 | rule = NULL; | |
5020 | } | |
5021 | } | |
5022 | ||
6399df6a | 5023 | return ofproto_flow_mod_init(ofproto, ofm, fm, rule); |
2c7ee524 JR |
5024 | } |
5025 | ||
2c7ee524 | 5026 | enum ofperr |
1f4a8933 | 5027 | ofproto_flow_mod_learn_refresh(struct ofproto_flow_mod *ofm) |
2c7ee524 JR |
5028 | { |
5029 | enum ofperr error = 0; | |
5030 | ||
5031 | /* ofm->temp_rule is our reference to the learned rule. We have a | |
5032 | * reference to an existing rule, if it already was in the classifier, | |
5033 | * otherwise we may have a fresh rule that we need to insert. */ | |
5034 | struct rule *rule = ofm->temp_rule; | |
5035 | if (!rule) { | |
5036 | return OFPERR_OFPFMFC_UNKNOWN; | |
5037 | } | |
2c7ee524 JR |
5038 | |
5039 | /* Create a new rule if the current one has been removed from the | |
5040 | * classifier. We need to do this since RCU does not allow a current rule | |
5041 | * to be reinserted before all threads have quiesced. | |
5042 | * | |
5043 | * It is possible that the rule is removed asynchronously, e.g., right | |
1f4a8933 | 5044 | * after we have read the 'rule->state' below. In this case the next time |
2c7ee524 | 5045 | * this function is executed the rule will be reinstated. */ |
1f4a8933 | 5046 | if (rule->state == RULE_REMOVED) { |
2c7ee524 JR |
5047 | struct cls_rule cr; |
5048 | ||
5049 | cls_rule_clone(&cr, &rule->cr); | |
5050 | ovs_mutex_lock(&rule->mutex); | |
1f4a8933 | 5051 | error = ofproto_rule_create(rule->ofproto, &cr, rule->table_id, |
2c7ee524 JR |
5052 | rule->flow_cookie, |
5053 | rule->idle_timeout, | |
5054 | rule->hard_timeout, rule->flags, | |
5055 | rule->importance, | |
5056 | rule->actions->ofpacts, | |
5057 | rule->actions->ofpacts_len, | |
5c7c16d8 YHW |
5058 | rule->match_tlv_bitmap, |
5059 | rule->ofpacts_tlv_bitmap, | |
2c7ee524 JR |
5060 | &ofm->temp_rule); |
5061 | ovs_mutex_unlock(&rule->mutex); | |
2c7ee524 | 5062 | if (!error) { |
1f4a8933 | 5063 | ofproto_rule_unref(rule); /* Release old reference. */ |
2c7ee524 | 5064 | } |
2c7ee524 JR |
5065 | } else { |
5066 | /* Refresh the existing rule. */ | |
5067 | ovs_mutex_lock(&rule->mutex); | |
5068 | rule->modified = time_msec(); | |
5069 | ovs_mutex_unlock(&rule->mutex); | |
5070 | } | |
1f4a8933 JR |
5071 | return error; |
5072 | } | |
5073 | ||
5074 | enum ofperr | |
5075 | ofproto_flow_mod_learn_start(struct ofproto_flow_mod *ofm) | |
5076 | OVS_REQUIRES(ofproto_mutex) | |
5077 | { | |
5078 | struct rule *rule = ofm->temp_rule; | |
5079 | ||
5080 | /* ofproto_flow_mod_start() consumes the reference, so we | |
5081 | * take a new one. */ | |
5082 | ofproto_rule_ref(rule); | |
5083 | enum ofperr error = ofproto_flow_mod_start(rule->ofproto, ofm); | |
5084 | ofm->temp_rule = rule; | |
5085 | ||
5086 | return error; | |
5087 | } | |
5088 | ||
6dd3c787 JR |
5089 | void |
5090 | ofproto_flow_mod_learn_revert(struct ofproto_flow_mod *ofm) | |
5091 | OVS_REQUIRES(ofproto_mutex) | |
5092 | { | |
5093 | struct rule *rule = rule_collection_rules(&ofm->new_rules)[0]; | |
5094 | ofproto_flow_mod_revert(rule->ofproto, ofm); | |
5095 | } | |
5096 | ||
1f4a8933 JR |
5097 | void |
5098 | ofproto_flow_mod_learn_finish(struct ofproto_flow_mod *ofm, | |
5099 | struct ofproto *orig_ofproto) | |
5100 | OVS_REQUIRES(ofproto_mutex) | |
5101 | { | |
5102 | struct rule *rule = rule_collection_rules(&ofm->new_rules)[0]; | |
5103 | ||
5104 | /* If learning on a different bridge, must bump its version | |
5105 | * number and flush connmgr afterwards. */ | |
5106 | if (rule->ofproto != orig_ofproto) { | |
5107 | ofproto_bump_tables_version(rule->ofproto); | |
5108 | } | |
5109 | ofproto_flow_mod_finish(rule->ofproto, ofm, NULL); | |
5110 | if (rule->ofproto != orig_ofproto) { | |
5111 | ofmonitor_flush(rule->ofproto->connmgr); | |
5112 | } | |
5113 | } | |
5114 | ||
5115 | /* Refresh 'ofm->temp_rule', for which the caller holds a reference, if already | |
5116 | * in the classifier, insert it otherwise. If the rule has already been | |
5117 | * removed from the classifier, a new rule is created using 'ofm->temp_rule' as | |
5118 | * a template and the reference to the old 'ofm->temp_rule' is freed. If | |
5119 | * 'keep_ref' is true, then a reference to the current rule is held, otherwise | |
5120 | * it is released and 'ofm->temp_rule' is set to NULL. | |
5121 | * | |
4c71600d DDP |
5122 | * If 'limit' != 0, insertion will fail if there are more than 'limit' rules |
5123 | * in the same table with the same cookie. If insertion succeeds, | |
86b7637c JS |
5124 | * '*below_limitp' will be set to true. If insertion fails '*below_limitp' |
5125 | * will be set to false. | |
4c71600d | 5126 | * |
1f4a8933 JR |
5127 | * Caller needs to be the exclusive owner of 'ofm' as it is being manipulated |
5128 | * during the call. */ | |
5129 | enum ofperr | |
4c71600d | 5130 | ofproto_flow_mod_learn(struct ofproto_flow_mod *ofm, bool keep_ref, |
86b7637c | 5131 | unsigned limit, bool *below_limitp) |
1f4a8933 JR |
5132 | OVS_EXCLUDED(ofproto_mutex) |
5133 | { | |
5134 | enum ofperr error = ofproto_flow_mod_learn_refresh(ofm); | |
5135 | struct rule *rule = ofm->temp_rule; | |
86b7637c | 5136 | bool below_limit = true; |
1f4a8933 JR |
5137 | |
5138 | /* Do we need to insert the rule? */ | |
5139 | if (!error && rule->state == RULE_INITIALIZED) { | |
5140 | ovs_mutex_lock(&ofproto_mutex); | |
4c71600d DDP |
5141 | |
5142 | if (limit) { | |
5143 | struct rule_criteria criteria; | |
5144 | struct rule_collection rules; | |
6a6b7060 | 5145 | struct minimatch match; |
4c71600d | 5146 | |
6a6b7060 | 5147 | minimatch_init_catchall(&match); |
4c71600d DDP |
5148 | rule_criteria_init(&criteria, rule->table_id, &match, 0, |
5149 | OVS_VERSION_MAX, rule->flow_cookie, | |
5150 | OVS_BE64_MAX, OFPP_ANY, OFPG_ANY); | |
6a6b7060 BP |
5151 | minimatch_destroy(&match); |
5152 | ||
4c71600d DDP |
5153 | rule_criteria_require_rw(&criteria, false); |
5154 | collect_rules_loose(rule->ofproto, &criteria, &rules); | |
5155 | if (rule_collection_n(&rules) >= limit) { | |
86b7637c | 5156 | below_limit = false; |
4c71600d DDP |
5157 | } |
5158 | rule_collection_destroy(&rules); | |
5159 | rule_criteria_destroy(&criteria); | |
5160 | } | |
5161 | ||
86b7637c | 5162 | if (below_limit) { |
4c71600d DDP |
5163 | ofm->version = rule->ofproto->tables_version + 1; |
5164 | ||
5165 | error = ofproto_flow_mod_learn_start(ofm); | |
5166 | if (!error) { | |
5167 | ofproto_flow_mod_learn_finish(ofm, NULL); | |
5168 | } | |
5169 | } else { | |
7ed58d4a JP |
5170 | static struct vlog_rate_limit rll = VLOG_RATE_LIMIT_INIT(1, 5); |
5171 | VLOG_INFO_RL(&rll, "Learn limit for flow %"PRIu64" reached.", | |
05b1dd23 BP |
5172 | rule->flow_cookie); |
5173 | ||
4c71600d | 5174 | ofproto_flow_mod_uninit(ofm); |
1f4a8933 JR |
5175 | } |
5176 | ovs_mutex_unlock(&ofproto_mutex); | |
5177 | } | |
2c7ee524 | 5178 | |
86b7637c | 5179 | if (!keep_ref && below_limit) { |
2c7ee524 JR |
5180 | ofproto_rule_unref(rule); |
5181 | ofm->temp_rule = NULL; | |
5182 | } | |
86b7637c JS |
5183 | if (below_limitp) { |
5184 | *below_limitp = below_limit; | |
4c71600d | 5185 | } |
2c7ee524 JR |
5186 | return error; |
5187 | } | |
5188 | ||
39c94593 | 5189 | static void |
5bacd5cd JR |
5190 | replace_rule_start(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
5191 | struct rule *old_rule, struct rule *new_rule) | |
39c94593 JR |
5192 | { |
5193 | struct oftable *table = &ofproto->tables[new_rule->table_id]; | |
834fe5cb | 5194 | |
6787a49f | 5195 | /* 'old_rule' may be either an evicted rule or replaced rule. */ |
39c94593 | 5196 | if (old_rule) { |
5bacd5cd JR |
5197 | /* Copy values from old rule for modify semantics. */ |
5198 | if (old_rule->removed_reason != OFPRR_EVICTION) { | |
5199 | bool change_cookie = (ofm->modify_cookie | |
5200 | && new_rule->flow_cookie != OVS_BE64_MAX | |
5201 | && new_rule->flow_cookie != old_rule->flow_cookie); | |
5202 | ||
5203 | ovs_mutex_lock(&new_rule->mutex); | |
5204 | ovs_mutex_lock(&old_rule->mutex); | |
5205 | if (ofm->command != OFPFC_ADD) { | |
5206 | new_rule->idle_timeout = old_rule->idle_timeout; | |
5207 | new_rule->hard_timeout = old_rule->hard_timeout; | |
5208 | *CONST_CAST(uint16_t *, &new_rule->importance) = old_rule->importance; | |
5209 | new_rule->flags = old_rule->flags; | |
5210 | new_rule->created = old_rule->created; | |
5211 | } | |
5212 | if (!change_cookie) { | |
82a3160e BP |
5213 | *CONST_CAST(ovs_be64 *, &new_rule->flow_cookie) |
5214 | = old_rule->flow_cookie; | |
5bacd5cd JR |
5215 | } |
5216 | ovs_mutex_unlock(&old_rule->mutex); | |
5217 | ovs_mutex_unlock(&new_rule->mutex); | |
5218 | } | |
5219 | ||
39c94593 | 5220 | /* Mark the old rule for removal in the next version. */ |
5bacd5cd | 5221 | cls_rule_make_invisible_in_version(&old_rule->cr, ofm->version); |
9bab38ff JR |
5222 | |
5223 | /* Remove the old rule from data structures. */ | |
5224 | ofproto_rule_remove__(ofproto, old_rule); | |
d79e3d70 JR |
5225 | } else { |
5226 | table->n_flows++; | |
dd27be82 | 5227 | } |
cc099268 JR |
5228 | /* Insert flow to ofproto data structures, so that later flow_mods may |
5229 | * relate to it. This is reversible, in case later errors require this to | |
39c94593 JR |
5230 | * be reverted. */ |
5231 | ofproto_rule_insert__(ofproto, new_rule); | |
5232 | /* Make the new rule visible for classifier lookups only from the next | |
5233 | * version. */ | |
5bacd5cd JR |
5234 | classifier_insert(&table->cls, &new_rule->cr, ofm->version, ofm->conjs, |
5235 | ofm->n_conjs); | |
39c94593 JR |
5236 | } |
5237 | ||
cc099268 JR |
5238 | static void |
5239 | replace_rule_revert(struct ofproto *ofproto, | |
5240 | struct rule *old_rule, struct rule *new_rule) | |
39c94593 JR |
5241 | { |
5242 | struct oftable *table = &ofproto->tables[new_rule->table_id]; | |
35f48b8b | 5243 | |
39c94593 | 5244 | if (old_rule) { |
5bacd5cd JR |
5245 | if (old_rule->removed_reason == OFPRR_EVICTION) { |
5246 | /* Revert the eviction. */ | |
5247 | eviction_group_add_rule(old_rule); | |
5248 | } | |
5249 | ||
9bab38ff JR |
5250 | /* Restore the old rule to data structures. */ |
5251 | ofproto_rule_insert__(ofproto, old_rule); | |
5252 | ||
d79e3d70 | 5253 | /* Restore the original visibility of the old rule. */ |
39c94593 | 5254 | cls_rule_restore_visibility(&old_rule->cr); |
d79e3d70 JR |
5255 | } else { |
5256 | /* Restore table's rule count. */ | |
5257 | table->n_flows--; | |
834fe5cb BP |
5258 | } |
5259 | ||
39c94593 | 5260 | /* Remove the new rule immediately. It was never visible to lookups. */ |
46ab60bf | 5261 | classifier_remove_assert(&table->cls, &new_rule->cr); |
39c94593 | 5262 | ofproto_rule_remove__(ofproto, new_rule); |
39c94593 | 5263 | ofproto_rule_unref(new_rule); |
dd27be82 | 5264 | } |
79eee1eb | 5265 | |
39c94593 | 5266 | /* Adds the 'new_rule', replacing the 'old_rule'. */ |
dd27be82 | 5267 | static void |
81dee635 | 5268 | replace_rule_finish(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
0a0d9385 | 5269 | const struct openflow_mod_requester *req, |
39c94593 JR |
5270 | struct rule *old_rule, struct rule *new_rule, |
5271 | struct ovs_list *dead_cookies) | |
dd27be82 JR |
5272 | OVS_REQUIRES(ofproto_mutex) |
5273 | { | |
6787a49f JR |
5274 | struct rule *replaced_rule; |
5275 | ||
5aacc3e2 JR |
5276 | replaced_rule = (old_rule && old_rule->removed_reason != OFPRR_EVICTION) |
5277 | ? old_rule : NULL; | |
dd27be82 | 5278 | |
6787a49f JR |
5279 | /* Insert the new flow to the ofproto provider. A non-NULL 'replaced_rule' |
5280 | * is a duplicate rule the 'new_rule' is replacing. The provider should | |
748eb2f5 | 5281 | * link the packet and byte counts from the old rule to the new one if |
8b6987d7 JR |
5282 | * 'modify_keep_counts' is 'true'. The 'replaced_rule' will be deleted |
5283 | * right after this call. */ | |
6787a49f | 5284 | ofproto->ofproto_class->rule_insert(new_rule, replaced_rule, |
8b6987d7 | 5285 | ofm->modify_keep_counts); |
39c94593 JR |
5286 | learned_cookies_inc(ofproto, rule_get_actions(new_rule)); |
5287 | ||
5288 | if (old_rule) { | |
5289 | const struct rule_actions *old_actions = rule_get_actions(old_rule); | |
81dee635 | 5290 | const struct rule_actions *new_actions = rule_get_actions(new_rule); |
39c94593 | 5291 | |
39c94593 JR |
5292 | learned_cookies_dec(ofproto, old_actions, dead_cookies); |
5293 | ||
6787a49f | 5294 | if (replaced_rule) { |
5bacd5cd JR |
5295 | enum nx_flow_update_event event = ofm->command == OFPFC_ADD |
5296 | ? NXFME_ADDED : NXFME_MODIFIED; | |
5297 | ||
81dee635 JR |
5298 | bool changed_cookie = (new_rule->flow_cookie |
5299 | != old_rule->flow_cookie); | |
6787a49f | 5300 | |
81dee635 JR |
5301 | bool changed_actions = !ofpacts_equal(new_actions->ofpacts, |
5302 | new_actions->ofpacts_len, | |
5303 | old_actions->ofpacts, | |
5304 | old_actions->ofpacts_len); | |
6787a49f | 5305 | |
5bacd5cd | 5306 | if (event != NXFME_MODIFIED || changed_actions |
81dee635 | 5307 | || changed_cookie) { |
5bacd5cd | 5308 | ofmonitor_report(ofproto->connmgr, new_rule, event, 0, |
6787a49f JR |
5309 | req ? req->ofconn : NULL, |
5310 | req ? req->request->xid : 0, | |
81dee635 | 5311 | changed_actions ? old_actions : NULL); |
6787a49f JR |
5312 | } |
5313 | } else { | |
5314 | /* XXX: This is slight duplication with delete_flows_finish__() */ | |
6787a49f JR |
5315 | ofmonitor_report(ofproto->connmgr, old_rule, NXFME_DELETED, |
5316 | OFPRR_EVICTION, | |
39c94593 | 5317 | req ? req->ofconn : NULL, |
6787a49f | 5318 | req ? req->request->xid : 0, NULL); |
39c94593 | 5319 | } |
dd27be82 | 5320 | } |
9ed18e46 BP |
5321 | } |
5322 | ||
2c7ee524 | 5323 | /* ofm->temp_rule is consumed only in the successful case. */ |
9387b970 | 5324 | static enum ofperr |
8be00367 | 5325 | modify_flows_start__(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
dd27be82 JR |
5326 | OVS_REQUIRES(ofproto_mutex) |
5327 | { | |
8be00367 JR |
5328 | struct rule_collection *old_rules = &ofm->old_rules; |
5329 | struct rule_collection *new_rules = &ofm->new_rules; | |
dd27be82 JR |
5330 | enum ofperr error; |
5331 | ||
fe59694b | 5332 | if (rule_collection_n(old_rules) > 0) { |
39c94593 | 5333 | /* Create a new 'modified' rule for each old rule. */ |
5bacd5cd JR |
5334 | struct rule *old_rule, *new_rule; |
5335 | const struct rule_actions *actions = rule_get_actions(ofm->temp_rule); | |
39c94593 | 5336 | |
5bacd5cd JR |
5337 | /* Must check actions while holding ofproto_mutex to avoid a race. */ |
5338 | error = ofproto_check_ofpacts(ofproto, actions->ofpacts, | |
5339 | actions->ofpacts_len); | |
5340 | if (error) { | |
5341 | return error; | |
5342 | } | |
5343 | ||
5344 | /* Use the temp rule as the first new rule, and as the template for | |
5345 | * the rest. */ | |
5346 | struct rule *temp = ofm->temp_rule; | |
5347 | ofm->temp_rule = NULL; /* We consume the template. */ | |
5348 | ||
5349 | bool first = true; | |
5350 | RULE_COLLECTION_FOR_EACH (old_rule, old_rules) { | |
5351 | if (first) { | |
5352 | /* The template rule's match is possibly a loose one, so it | |
5353 | * must be replaced with the old rule's match so that the new | |
5354 | * rule actually replaces the old one. */ | |
5355 | cls_rule_destroy(CONST_CAST(struct cls_rule *, &temp->cr)); | |
5356 | cls_rule_clone(CONST_CAST(struct cls_rule *, &temp->cr), | |
5357 | &old_rule->cr); | |
5c7c16d8 YHW |
5358 | if (temp->match_tlv_bitmap != old_rule->match_tlv_bitmap) { |
5359 | mf_vl_mff_unref(&temp->ofproto->vl_mff_map, | |
5360 | temp->match_tlv_bitmap); | |
5361 | temp->match_tlv_bitmap = old_rule->match_tlv_bitmap; | |
5362 | mf_vl_mff_ref(&temp->ofproto->vl_mff_map, | |
5363 | temp->match_tlv_bitmap); | |
5364 | } | |
5bacd5cd JR |
5365 | *CONST_CAST(uint8_t *, &temp->table_id) = old_rule->table_id; |
5366 | rule_collection_add(new_rules, temp); | |
5367 | first = false; | |
39c94593 | 5368 | } else { |
5bacd5cd JR |
5369 | struct cls_rule cr; |
5370 | cls_rule_clone(&cr, &old_rule->cr); | |
5371 | error = ofproto_rule_create(ofproto, &cr, old_rule->table_id, | |
5372 | temp->flow_cookie, | |
5373 | temp->idle_timeout, | |
5374 | temp->hard_timeout, temp->flags, | |
5375 | temp->importance, | |
5376 | temp->actions->ofpacts, | |
5377 | temp->actions->ofpacts_len, | |
5c7c16d8 YHW |
5378 | old_rule->match_tlv_bitmap, |
5379 | temp->ofpacts_tlv_bitmap, | |
5bacd5cd JR |
5380 | &new_rule); |
5381 | if (!error) { | |
5382 | rule_collection_add(new_rules, new_rule); | |
5383 | } else { | |
2c7ee524 JR |
5384 | /* Return the template rule in place in the error case. */ |
5385 | ofm->temp_rule = temp; | |
5386 | rule_collection_rules(new_rules)[0] = NULL; | |
5387 | ||
5bacd5cd JR |
5388 | rule_collection_unref(new_rules); |
5389 | rule_collection_destroy(new_rules); | |
5390 | return error; | |
5391 | } | |
39c94593 JR |
5392 | } |
5393 | } | |
fe59694b JR |
5394 | ovs_assert(rule_collection_n(new_rules) |
5395 | == rule_collection_n(old_rules)); | |
39c94593 | 5396 | |
fe59694b | 5397 | RULE_COLLECTIONS_FOR_EACH (old_rule, new_rule, old_rules, new_rules) { |
5bacd5cd | 5398 | replace_rule_start(ofproto, ofm, old_rule, new_rule); |
39c94593 | 5399 | } |
81dee635 | 5400 | } else if (ofm->modify_may_add_flow) { |
5bacd5cd | 5401 | /* No match, add a new flow, consumes 'temp'. */ |
8be00367 | 5402 | error = add_flow_start(ofproto, ofm); |
dd27be82 | 5403 | } else { |
2c7ee524 JR |
5404 | /* No flow to modify and may not add a flow. */ |
5405 | ofproto_rule_unref(ofm->temp_rule); | |
5406 | ofm->temp_rule = NULL; /* We consume the template. */ | |
d99f64d7 | 5407 | error = 0; |
dd27be82 | 5408 | } |
39c94593 | 5409 | |
dd27be82 JR |
5410 | return error; |
5411 | } | |
5412 | ||
5bacd5cd JR |
5413 | static enum ofperr |
5414 | modify_flows_init_loose(struct ofproto *ofproto, | |
5415 | struct ofproto_flow_mod *ofm, | |
5416 | const struct ofputil_flow_mod *fm) | |
5417 | OVS_EXCLUDED(ofproto_mutex) | |
5418 | { | |
5419 | rule_criteria_init(&ofm->criteria, fm->table_id, &fm->match, 0, | |
5420 | OVS_VERSION_MAX, fm->cookie, fm->cookie_mask, OFPP_ANY, | |
5421 | OFPG_ANY); | |
5422 | rule_criteria_require_rw(&ofm->criteria, | |
5423 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
5424 | /* Must create a new flow in advance for the case that no matches are | |
5425 | * found. Also used for template for multiple modified flows. */ | |
5426 | add_flow_init(ofproto, ofm, fm); | |
5427 | ||
5428 | return 0; | |
5429 | } | |
5430 | ||
90bf1e07 | 5431 | /* Implements OFPFC_MODIFY. Returns 0 on success or an OpenFlow error code on |
c184807c | 5432 | * failure. */ |
90bf1e07 | 5433 | static enum ofperr |
8be00367 | 5434 | modify_flows_start_loose(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
15aaf599 | 5435 | OVS_REQUIRES(ofproto_mutex) |
9ed18e46 | 5436 | { |
8be00367 | 5437 | struct rule_collection *old_rules = &ofm->old_rules; |
d51c8b71 | 5438 | enum ofperr error; |
9ed18e46 | 5439 | |
5bacd5cd | 5440 | error = collect_rules_loose(ofproto, &ofm->criteria, old_rules); |
a9b22b7f | 5441 | |
a8e547c1 | 5442 | if (!error) { |
8be00367 | 5443 | error = modify_flows_start__(ofproto, ofm); |
d99f64d7 JR |
5444 | } |
5445 | ||
5446 | if (error) { | |
39c94593 | 5447 | rule_collection_destroy(old_rules); |
d99f64d7 | 5448 | } |
5bacd5cd | 5449 | |
d99f64d7 JR |
5450 | return error; |
5451 | } | |
5452 | ||
1f42be1c | 5453 | static void |
8be00367 | 5454 | modify_flows_revert(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
1f42be1c JR |
5455 | OVS_REQUIRES(ofproto_mutex) |
5456 | { | |
8be00367 JR |
5457 | struct rule_collection *old_rules = &ofm->old_rules; |
5458 | struct rule_collection *new_rules = &ofm->new_rules; | |
5459 | ||
39c94593 | 5460 | /* Old rules were not changed yet, only need to revert new rules. */ |
5bacd5cd | 5461 | if (rule_collection_n(old_rules) > 0) { |
fe59694b JR |
5462 | struct rule *old_rule, *new_rule; |
5463 | RULE_COLLECTIONS_FOR_EACH (old_rule, new_rule, old_rules, new_rules) { | |
5464 | replace_rule_revert(ofproto, old_rule, new_rule); | |
39c94593 JR |
5465 | } |
5466 | rule_collection_destroy(new_rules); | |
5467 | rule_collection_destroy(old_rules); | |
1f42be1c | 5468 | } |
1f42be1c JR |
5469 | } |
5470 | ||
d99f64d7 | 5471 | static void |
8be00367 | 5472 | modify_flows_finish(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
0a0d9385 | 5473 | const struct openflow_mod_requester *req) |
d99f64d7 JR |
5474 | OVS_REQUIRES(ofproto_mutex) |
5475 | { | |
8be00367 JR |
5476 | struct rule_collection *old_rules = &ofm->old_rules; |
5477 | struct rule_collection *new_rules = &ofm->new_rules; | |
5478 | ||
fe59694b JR |
5479 | if (rule_collection_n(old_rules) == 0 |
5480 | && rule_collection_n(new_rules) == 1) { | |
8be00367 | 5481 | add_flow_finish(ofproto, ofm, req); |
fe59694b | 5482 | } else if (rule_collection_n(old_rules) > 0) { |
39c94593 JR |
5483 | struct ovs_list dead_cookies = OVS_LIST_INITIALIZER(&dead_cookies); |
5484 | ||
fe59694b JR |
5485 | ovs_assert(rule_collection_n(new_rules) |
5486 | == rule_collection_n(old_rules)); | |
39c94593 | 5487 | |
fe59694b JR |
5488 | struct rule *old_rule, *new_rule; |
5489 | RULE_COLLECTIONS_FOR_EACH (old_rule, new_rule, old_rules, new_rules) { | |
81dee635 | 5490 | replace_rule_finish(ofproto, ofm, req, old_rule, new_rule, |
fe59694b | 5491 | &dead_cookies); |
39c94593 JR |
5492 | } |
5493 | learned_cookies_flush(ofproto, &dead_cookies); | |
cc099268 | 5494 | remove_rules_postponed(old_rules); |
d99f64d7 | 5495 | } |
d99f64d7 JR |
5496 | } |
5497 | ||
5bacd5cd JR |
5498 | static enum ofperr |
5499 | modify_flow_init_strict(struct ofproto *ofproto OVS_UNUSED, | |
5500 | struct ofproto_flow_mod *ofm, | |
5501 | const struct ofputil_flow_mod *fm) | |
5502 | OVS_EXCLUDED(ofproto_mutex) | |
5503 | { | |
5504 | rule_criteria_init(&ofm->criteria, fm->table_id, &fm->match, fm->priority, | |
5505 | OVS_VERSION_MAX, fm->cookie, fm->cookie_mask, OFPP_ANY, | |
5506 | OFPG_ANY); | |
5507 | rule_criteria_require_rw(&ofm->criteria, | |
5508 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
5509 | /* Must create a new flow in advance for the case that no matches are | |
5510 | * found. Also used for template for multiple modified flows. */ | |
5511 | add_flow_init(ofproto, ofm, fm); | |
5512 | ||
5513 | return 0; | |
5514 | } | |
5515 | ||
79eee1eb | 5516 | /* Implements OFPFC_MODIFY_STRICT. Returns 0 on success or an OpenFlow error |
baae3d02 | 5517 | * code on failure. */ |
90bf1e07 | 5518 | static enum ofperr |
8be00367 | 5519 | modify_flow_start_strict(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
15aaf599 | 5520 | OVS_REQUIRES(ofproto_mutex) |
79eee1eb | 5521 | { |
8be00367 | 5522 | struct rule_collection *old_rules = &ofm->old_rules; |
d51c8b71 | 5523 | enum ofperr error; |
6c1491fb | 5524 | |
5bacd5cd | 5525 | error = collect_rules_strict(ofproto, &ofm->criteria, old_rules); |
a9b22b7f | 5526 | |
a8e547c1 | 5527 | if (!error) { |
dd27be82 | 5528 | /* collect_rules_strict() can return max 1 rule. */ |
8be00367 | 5529 | error = modify_flows_start__(ofproto, ofm); |
d99f64d7 JR |
5530 | } |
5531 | ||
d99f64d7 JR |
5532 | return error; |
5533 | } | |
9ed18e46 BP |
5534 | \f |
5535 | /* OFPFC_DELETE implementation. */ | |
79eee1eb | 5536 | |
254750ce | 5537 | static void |
44e0c35d | 5538 | delete_flows_start__(struct ofproto *ofproto, ovs_version_t version, |
39c94593 JR |
5539 | const struct rule_collection *rules) |
5540 | OVS_REQUIRES(ofproto_mutex) | |
5541 | { | |
fe59694b JR |
5542 | struct rule *rule; |
5543 | ||
5544 | RULE_COLLECTION_FOR_EACH (rule, rules) { | |
d79e3d70 JR |
5545 | struct oftable *table = &ofproto->tables[rule->table_id]; |
5546 | ||
5547 | table->n_flows--; | |
8be00367 | 5548 | cls_rule_make_invisible_in_version(&rule->cr, version); |
9bab38ff JR |
5549 | |
5550 | /* Remove rule from ofproto data structures. */ | |
5551 | ofproto_rule_remove__(ofproto, rule); | |
39c94593 JR |
5552 | } |
5553 | } | |
5554 | ||
25070e04 JR |
5555 | static void |
5556 | delete_flows_revert__(struct ofproto *ofproto, | |
5557 | const struct rule_collection *rules) | |
5558 | OVS_REQUIRES(ofproto_mutex) | |
5559 | { | |
5560 | struct rule *rule; | |
5561 | ||
5562 | RULE_COLLECTION_FOR_EACH (rule, rules) { | |
5563 | struct oftable *table = &ofproto->tables[rule->table_id]; | |
5564 | ||
5565 | /* Add rule back to ofproto data structures. */ | |
5566 | ofproto_rule_insert__(ofproto, rule); | |
5567 | ||
5568 | /* Restore table's rule count. */ | |
5569 | table->n_flows++; | |
5570 | ||
5571 | /* Restore the original visibility of the rule. */ | |
5572 | cls_rule_restore_visibility(&rule->cr); | |
5573 | } | |
5574 | } | |
5575 | ||
39c94593 JR |
5576 | static void |
5577 | delete_flows_finish__(struct ofproto *ofproto, | |
5578 | struct rule_collection *rules, | |
5579 | enum ofp_flow_removed_reason reason, | |
0a0d9385 | 5580 | const struct openflow_mod_requester *req) |
15aaf599 | 5581 | OVS_REQUIRES(ofproto_mutex) |
064af421 | 5582 | { |
fe59694b | 5583 | if (rule_collection_n(rules)) { |
55951e15 | 5584 | struct ovs_list dead_cookies = OVS_LIST_INITIALIZER(&dead_cookies); |
fe59694b | 5585 | struct rule *rule; |
79eee1eb | 5586 | |
fe59694b | 5587 | RULE_COLLECTION_FOR_EACH (rule, rules) { |
f695ebfa JR |
5588 | /* This value will be used to send the flow removed message right |
5589 | * before the rule is actually destroyed. */ | |
5590 | rule->removed_reason = reason; | |
5591 | ||
9ca4a86f | 5592 | ofmonitor_report(ofproto->connmgr, rule, NXFME_DELETED, reason, |
c84d8691 JR |
5593 | req ? req->ofconn : NULL, |
5594 | req ? req->request->xid : 0, NULL); | |
6c6eedc5 SJ |
5595 | |
5596 | /* Send Vacancy Event for OF1.4+. */ | |
5597 | send_table_status(ofproto, rule->table_id); | |
5598 | ||
802f84ff JR |
5599 | learned_cookies_dec(ofproto, rule_get_actions(rule), |
5600 | &dead_cookies); | |
9ca4a86f | 5601 | } |
cc099268 | 5602 | remove_rules_postponed(rules); |
39c94593 | 5603 | |
35f48b8b | 5604 | learned_cookies_flush(ofproto, &dead_cookies); |
39c94593 JR |
5605 | } |
5606 | } | |
5607 | ||
5608 | /* Deletes the rules listed in 'rules'. | |
5609 | * The deleted rules will become invisible to the lookups in the next version. | |
5610 | * Destroys 'rules'. */ | |
5611 | static void | |
5612 | delete_flows__(struct rule_collection *rules, | |
5613 | enum ofp_flow_removed_reason reason, | |
0a0d9385 | 5614 | const struct openflow_mod_requester *req) |
39c94593 JR |
5615 | OVS_REQUIRES(ofproto_mutex) |
5616 | { | |
fe59694b JR |
5617 | if (rule_collection_n(rules)) { |
5618 | struct ofproto *ofproto = rule_collection_rules(rules)[0]->ofproto; | |
39c94593 | 5619 | |
8be00367 | 5620 | delete_flows_start__(ofproto, ofproto->tables_version + 1, rules); |
39c94593 JR |
5621 | ofproto_bump_tables_version(ofproto); |
5622 | delete_flows_finish__(ofproto, rules, reason, req); | |
9ca4a86f BP |
5623 | ofmonitor_flush(ofproto->connmgr); |
5624 | } | |
79eee1eb | 5625 | } |
79eee1eb | 5626 | |
5bacd5cd JR |
5627 | static enum ofperr |
5628 | delete_flows_init_loose(struct ofproto *ofproto OVS_UNUSED, | |
5629 | struct ofproto_flow_mod *ofm, | |
5630 | const struct ofputil_flow_mod *fm) | |
5631 | OVS_EXCLUDED(ofproto_mutex) | |
5632 | { | |
5633 | rule_criteria_init(&ofm->criteria, fm->table_id, &fm->match, 0, | |
5634 | OVS_VERSION_MAX, fm->cookie, fm->cookie_mask, | |
5635 | fm->out_port, fm->out_group); | |
5636 | rule_criteria_require_rw(&ofm->criteria, | |
5637 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
5638 | return 0; | |
5639 | } | |
5640 | ||
79eee1eb | 5641 | /* Implements OFPFC_DELETE. */ |
90bf1e07 | 5642 | static enum ofperr |
8be00367 | 5643 | delete_flows_start_loose(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
15aaf599 | 5644 | OVS_REQUIRES(ofproto_mutex) |
79eee1eb | 5645 | { |
8be00367 | 5646 | struct rule_collection *rules = &ofm->old_rules; |
90bf1e07 | 5647 | enum ofperr error; |
064af421 | 5648 | |
5bacd5cd | 5649 | error = collect_rules_loose(ofproto, &ofm->criteria, rules); |
a9b22b7f | 5650 | |
802f84ff | 5651 | if (!error) { |
8be00367 | 5652 | delete_flows_start__(ofproto, ofm->version, rules); |
a8e547c1 | 5653 | } |
a8e547c1 BP |
5654 | |
5655 | return error; | |
064af421 BP |
5656 | } |
5657 | ||
ce59413f | 5658 | static void |
8be00367 | 5659 | delete_flows_revert(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
ce59413f JR |
5660 | OVS_REQUIRES(ofproto_mutex) |
5661 | { | |
25070e04 | 5662 | delete_flows_revert__(ofproto, &ofm->old_rules); |
ce59413f JR |
5663 | } |
5664 | ||
1f42be1c | 5665 | static void |
2c7ee524 | 5666 | delete_flows_finish(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
0a0d9385 | 5667 | const struct openflow_mod_requester *req) |
15aaf599 | 5668 | OVS_REQUIRES(ofproto_mutex) |
79eee1eb | 5669 | { |
5aacc3e2 | 5670 | delete_flows_finish__(ofproto, &ofm->old_rules, OFPRR_DELETE, req); |
ce59413f JR |
5671 | } |
5672 | ||
5bacd5cd JR |
5673 | static enum ofperr |
5674 | delete_flows_init_strict(struct ofproto *ofproto OVS_UNUSED, | |
5675 | struct ofproto_flow_mod *ofm, | |
5676 | const struct ofputil_flow_mod *fm) | |
5677 | OVS_EXCLUDED(ofproto_mutex) | |
5678 | { | |
5679 | rule_criteria_init(&ofm->criteria, fm->table_id, &fm->match, fm->priority, | |
5680 | OVS_VERSION_MAX, fm->cookie, fm->cookie_mask, | |
5681 | fm->out_port, fm->out_group); | |
5682 | rule_criteria_require_rw(&ofm->criteria, | |
5683 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
5684 | return 0; | |
5685 | } | |
5686 | ||
ce59413f JR |
5687 | /* Implements OFPFC_DELETE_STRICT. */ |
5688 | static enum ofperr | |
2c7ee524 | 5689 | delete_flow_start_strict(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
ce59413f JR |
5690 | OVS_REQUIRES(ofproto_mutex) |
5691 | { | |
8be00367 | 5692 | struct rule_collection *rules = &ofm->old_rules; |
ce59413f JR |
5693 | enum ofperr error; |
5694 | ||
5bacd5cd | 5695 | error = collect_rules_strict(ofproto, &ofm->criteria, rules); |
a9b22b7f | 5696 | |
802f84ff | 5697 | if (!error) { |
8be00367 | 5698 | delete_flows_start__(ofproto, ofm->version, rules); |
ce59413f JR |
5699 | } |
5700 | ||
5701 | return error; | |
5702 | } | |
5703 | ||
f695ebfa | 5704 | /* This may only be called by rule_destroy_cb()! */ |
abe529af | 5705 | static void |
f695ebfa JR |
5706 | ofproto_rule_send_removed(struct rule *rule) |
5707 | OVS_EXCLUDED(ofproto_mutex) | |
abe529af BP |
5708 | { |
5709 | struct ofputil_flow_removed fr; | |
dc437090 | 5710 | long long int used; |
abe529af | 5711 | |
5cb7a798 | 5712 | minimatch_expand(&rule->cr.match, &fr.match); |
81a76618 | 5713 | fr.priority = rule->cr.priority; |
f695ebfa | 5714 | |
25010c68 JR |
5715 | /* Synchronize with connmgr_destroy() calls to prevent connmgr disappearing |
5716 | * while we use it. */ | |
f695ebfa | 5717 | ovs_mutex_lock(&ofproto_mutex); |
25010c68 JR |
5718 | struct connmgr *connmgr = rule->ofproto->connmgr; |
5719 | if (!connmgr) { | |
5720 | ovs_mutex_unlock(&ofproto_mutex); | |
5721 | return; | |
5722 | } | |
5723 | ||
abe529af | 5724 | fr.cookie = rule->flow_cookie; |
f695ebfa | 5725 | fr.reason = rule->removed_reason; |
95216219 | 5726 | fr.table_id = rule->table_id; |
65e0be10 BP |
5727 | calc_duration(rule->created, time_msec(), |
5728 | &fr.duration_sec, &fr.duration_nsec); | |
d10976b7 | 5729 | ovs_mutex_lock(&rule->mutex); |
abe529af | 5730 | fr.idle_timeout = rule->idle_timeout; |
fa2bad0f | 5731 | fr.hard_timeout = rule->hard_timeout; |
d10976b7 | 5732 | ovs_mutex_unlock(&rule->mutex); |
abe529af | 5733 | rule->ofproto->ofproto_class->rule_get_stats(rule, &fr.packet_count, |
dc437090 | 5734 | &fr.byte_count, &used); |
25010c68 | 5735 | connmgr_send_flow_removed(connmgr, &fr); |
f695ebfa | 5736 | ovs_mutex_unlock(&ofproto_mutex); |
abe529af BP |
5737 | } |
5738 | ||
5739 | /* Sends an OpenFlow "flow removed" message with the given 'reason' (either | |
5740 | * OFPRR_HARD_TIMEOUT or OFPRR_IDLE_TIMEOUT), and then removes 'rule' from its | |
5741 | * ofproto. | |
5742 | * | |
5743 | * ofproto implementation ->run() functions should use this function to expire | |
5744 | * OpenFlow flows. */ | |
5745 | void | |
5746 | ofproto_rule_expire(struct rule *rule, uint8_t reason) | |
15aaf599 | 5747 | OVS_REQUIRES(ofproto_mutex) |
abe529af | 5748 | { |
802f84ff JR |
5749 | struct rule_collection rules; |
5750 | ||
fe59694b JR |
5751 | rule_collection_init(&rules); |
5752 | rule_collection_add(&rules, rule); | |
802f84ff | 5753 | delete_flows__(&rules, reason, NULL); |
79eee1eb | 5754 | } |
994c9973 BP |
5755 | |
5756 | /* Reduces '*timeout' to no more than 'max'. A value of zero in either case | |
5757 | * means "infinite". */ | |
5758 | static void | |
5759 | reduce_timeout(uint16_t max, uint16_t *timeout) | |
5760 | { | |
5761 | if (max && (!*timeout || *timeout > max)) { | |
5762 | *timeout = max; | |
5763 | } | |
5764 | } | |
5765 | ||
5766 | /* If 'idle_timeout' is nonzero, and 'rule' has no idle timeout or an idle | |
5767 | * timeout greater than 'idle_timeout', lowers 'rule''s idle timeout to | |
5768 | * 'idle_timeout' seconds. Similarly for 'hard_timeout'. | |
5769 | * | |
5770 | * Suitable for implementing OFPACT_FIN_TIMEOUT. */ | |
1f4a8933 JR |
5771 | void |
5772 | ofproto_rule_reduce_timeouts__(struct rule *rule, | |
5773 | uint16_t idle_timeout, uint16_t hard_timeout) | |
5774 | OVS_REQUIRES(ofproto_mutex) | |
5775 | OVS_EXCLUDED(rule->mutex) | |
5776 | { | |
5777 | if (!idle_timeout && !hard_timeout) { | |
5778 | return; | |
5779 | } | |
5780 | ||
5781 | if (ovs_list_is_empty(&rule->expirable)) { | |
5782 | ovs_list_insert(&rule->ofproto->expirable, &rule->expirable); | |
5783 | } | |
5784 | ||
5785 | ovs_mutex_lock(&rule->mutex); | |
5786 | reduce_timeout(idle_timeout, &rule->idle_timeout); | |
5787 | reduce_timeout(hard_timeout, &rule->hard_timeout); | |
5788 | ovs_mutex_unlock(&rule->mutex); | |
5789 | } | |
5790 | ||
994c9973 BP |
5791 | void |
5792 | ofproto_rule_reduce_timeouts(struct rule *rule, | |
5793 | uint16_t idle_timeout, uint16_t hard_timeout) | |
d10976b7 | 5794 | OVS_EXCLUDED(ofproto_mutex, rule->mutex) |
994c9973 BP |
5795 | { |
5796 | if (!idle_timeout && !hard_timeout) { | |
5797 | return; | |
5798 | } | |
5799 | ||
abe7b10f | 5800 | ovs_mutex_lock(&ofproto_mutex); |
417e7e66 BW |
5801 | if (ovs_list_is_empty(&rule->expirable)) { |
5802 | ovs_list_insert(&rule->ofproto->expirable, &rule->expirable); | |
994c9973 | 5803 | } |
abe7b10f | 5804 | ovs_mutex_unlock(&ofproto_mutex); |
994c9973 | 5805 | |
d10976b7 | 5806 | ovs_mutex_lock(&rule->mutex); |
994c9973 BP |
5807 | reduce_timeout(idle_timeout, &rule->idle_timeout); |
5808 | reduce_timeout(hard_timeout, &rule->hard_timeout); | |
d10976b7 | 5809 | ovs_mutex_unlock(&rule->mutex); |
994c9973 | 5810 | } |
79eee1eb | 5811 | \f |
90bf1e07 | 5812 | static enum ofperr |
2e4f5fcf | 5813 | handle_flow_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
15aaf599 | 5814 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 5815 | { |
a5b8d268 | 5816 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
7338102b | 5817 | struct ofputil_flow_mod fm; |
f25d0cf3 BP |
5818 | uint64_t ofpacts_stub[1024 / 8]; |
5819 | struct ofpbuf ofpacts; | |
90bf1e07 | 5820 | enum ofperr error; |
064af421 | 5821 | |
76589937 | 5822 | error = reject_slave_controller(ofconn); |
9deba63b | 5823 | if (error) { |
b0d38b2f | 5824 | return error; |
9deba63b | 5825 | } |
3052b0c5 | 5826 | |
f25d0cf3 | 5827 | ofpbuf_use_stub(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); |
7338102b | 5828 | error = ofputil_decode_flow_mod(&fm, oh, ofconn_get_protocol(ofconn), |
04f48a68 YHW |
5829 | ofproto_get_tun_tab(ofproto), |
5830 | &ofproto->vl_mff_map, &ofpacts, | |
7e9f8266 BP |
5831 | u16_to_ofp(ofproto->max_ports), |
5832 | ofproto->n_tables); | |
548de4dd | 5833 | if (!error) { |
0a0d9385 | 5834 | struct openflow_mod_requester req = { ofconn, oh }; |
7338102b | 5835 | error = handle_flow_mod__(ofproto, &fm, &req); |
6a6b7060 | 5836 | minimatch_destroy(&fm.match); |
49bdc010 | 5837 | } |
2e310801 | 5838 | |
f25d0cf3 | 5839 | ofpbuf_uninit(&ofpacts); |
f25d0cf3 | 5840 | return error; |
75a75043 BP |
5841 | } |
5842 | ||
90bf1e07 | 5843 | static enum ofperr |
7338102b | 5844 | handle_flow_mod__(struct ofproto *ofproto, const struct ofputil_flow_mod *fm, |
0a0d9385 | 5845 | const struct openflow_mod_requester *req) |
15aaf599 | 5846 | OVS_EXCLUDED(ofproto_mutex) |
75a75043 | 5847 | { |
7338102b | 5848 | struct ofproto_flow_mod ofm; |
35412852 | 5849 | enum ofperr error; |
75a75043 | 5850 | |
2c7ee524 | 5851 | error = ofproto_flow_mod_init(ofproto, &ofm, fm, NULL); |
5bacd5cd JR |
5852 | if (error) { |
5853 | return error; | |
5854 | } | |
7338102b | 5855 | |
15aaf599 | 5856 | ovs_mutex_lock(&ofproto_mutex); |
7338102b JR |
5857 | ofm.version = ofproto->tables_version + 1; |
5858 | error = ofproto_flow_mod_start(ofproto, &ofm); | |
1f42be1c | 5859 | if (!error) { |
39c94593 | 5860 | ofproto_bump_tables_version(ofproto); |
7338102b | 5861 | ofproto_flow_mod_finish(ofproto, &ofm, req); |
2c7ee524 | 5862 | ofmonitor_flush(ofproto->connmgr); |
3052b0c5 | 5863 | } |
15aaf599 | 5864 | ovs_mutex_unlock(&ofproto_mutex); |
35412852 | 5865 | |
35412852 | 5866 | return error; |
3052b0c5 BP |
5867 | } |
5868 | ||
90bf1e07 | 5869 | static enum ofperr |
d1e2cf21 | 5870 | handle_role_request(struct ofconn *ofconn, const struct ofp_header *oh) |
9deba63b | 5871 | { |
f4f1ea7e BP |
5872 | struct ofputil_role_request request; |
5873 | struct ofputil_role_request reply; | |
9deba63b | 5874 | struct ofpbuf *buf; |
6ea4776b JR |
5875 | enum ofperr error; |
5876 | ||
f4f1ea7e | 5877 | error = ofputil_decode_role_message(oh, &request); |
6ea4776b JR |
5878 | if (error) { |
5879 | return error; | |
5880 | } | |
9deba63b | 5881 | |
f4f1ea7e | 5882 | if (request.role != OFPCR12_ROLE_NOCHANGE) { |
d26eda9f BP |
5883 | if (request.role != OFPCR12_ROLE_EQUAL |
5884 | && request.have_generation_id | |
f4f1ea7e BP |
5885 | && !ofconn_set_master_election_id(ofconn, request.generation_id)) { |
5886 | return OFPERR_OFPRRFC_STALE; | |
6ea4776b | 5887 | } |
6ea4776b | 5888 | |
f4f1ea7e BP |
5889 | ofconn_set_role(ofconn, request.role); |
5890 | } | |
9deba63b | 5891 | |
f4f1ea7e | 5892 | reply.role = ofconn_get_role(ofconn); |
147cc9d3 BP |
5893 | reply.have_generation_id = ofconn_get_master_election_id( |
5894 | ofconn, &reply.generation_id); | |
f4f1ea7e | 5895 | buf = ofputil_encode_role_reply(oh, &reply); |
b0421aa2 | 5896 | ofconn_send_reply(ofconn, buf); |
9deba63b BP |
5897 | |
5898 | return 0; | |
5899 | } | |
5900 | ||
90bf1e07 | 5901 | static enum ofperr |
6c1491fb BP |
5902 | handle_nxt_flow_mod_table_id(struct ofconn *ofconn, |
5903 | const struct ofp_header *oh) | |
5904 | { | |
225c33ba BP |
5905 | bool enable = ofputil_decode_nx_flow_mod_table_id(oh); |
5906 | enum ofputil_protocol cur = ofconn_get_protocol(ofconn); | |
5907 | ofconn_set_protocol(ofconn, ofputil_protocol_set_tid(cur, enable)); | |
6c1491fb | 5908 | |
6c1491fb BP |
5909 | return 0; |
5910 | } | |
5911 | ||
90bf1e07 | 5912 | static enum ofperr |
d1e2cf21 | 5913 | handle_nxt_set_flow_format(struct ofconn *ofconn, const struct ofp_header *oh) |
09246b99 | 5914 | { |
225c33ba | 5915 | enum ofputil_protocol next_base = ofputil_decode_nx_set_flow_format(oh); |
27527aa0 | 5916 | if (!next_base) { |
90bf1e07 | 5917 | return OFPERR_OFPBRC_EPERM; |
09246b99 | 5918 | } |
7ee20df1 | 5919 | |
225c33ba BP |
5920 | enum ofputil_protocol cur = ofconn_get_protocol(ofconn); |
5921 | ofconn_set_protocol(ofconn, ofputil_protocol_set_base(cur, next_base)); | |
b20f4073 | 5922 | |
7ee20df1 | 5923 | return 0; |
09246b99 BP |
5924 | } |
5925 | ||
90bf1e07 | 5926 | static enum ofperr |
54834960 EJ |
5927 | handle_nxt_set_packet_in_format(struct ofconn *ofconn, |
5928 | const struct ofp_header *oh) | |
5929 | { | |
d8790c08 BP |
5930 | enum ofputil_packet_in_format format; |
5931 | enum ofperr error = ofputil_decode_set_packet_in_format(oh, &format); | |
5932 | if (!error) { | |
5933 | ofconn_set_packet_in_format(ofconn, format); | |
54834960 | 5934 | } |
d8790c08 | 5935 | return error; |
54834960 EJ |
5936 | } |
5937 | ||
80d5aefd BP |
5938 | static enum ofperr |
5939 | handle_nxt_set_async_config(struct ofconn *ofconn, const struct ofp_header *oh) | |
5940 | { | |
5876b4db BP |
5941 | struct ofputil_async_cfg basis = ofconn_get_async_config(ofconn); |
5942 | struct ofputil_async_cfg ac; | |
d18cc1ee | 5943 | enum ofperr error; |
80d5aefd | 5944 | |
5876b4db | 5945 | error = ofputil_decode_set_async_config(oh, false, &basis, &ac); |
d18cc1ee AA |
5946 | if (error) { |
5947 | return error; | |
5948 | } | |
80d5aefd | 5949 | |
a930d4c5 | 5950 | ofconn_set_async_config(ofconn, &ac); |
4550b647 MM |
5951 | if (ofconn_get_type(ofconn) == OFCONN_SERVICE && |
5952 | !ofconn_get_miss_send_len(ofconn)) { | |
5953 | ofconn_set_miss_send_len(ofconn, OFP_DEFAULT_MISS_SEND_LEN); | |
5954 | } | |
80d5aefd BP |
5955 | |
5956 | return 0; | |
5957 | } | |
5958 | ||
c423b3b3 AC |
5959 | static enum ofperr |
5960 | handle_nxt_get_async_request(struct ofconn *ofconn, const struct ofp_header *oh) | |
5961 | { | |
a930d4c5 | 5962 | struct ofputil_async_cfg ac = ofconn_get_async_config(ofconn); |
af7bc161 | 5963 | ofconn_send_reply(ofconn, ofputil_encode_get_async_reply(oh, &ac)); |
c423b3b3 AC |
5964 | |
5965 | return 0; | |
5966 | } | |
5967 | ||
a7349929 BP |
5968 | static enum ofperr |
5969 | handle_nxt_set_controller_id(struct ofconn *ofconn, | |
5970 | const struct ofp_header *oh) | |
5971 | { | |
982697a4 | 5972 | const struct nx_controller_id *nci = ofpmsg_body(oh); |
a7349929 | 5973 | |
a7349929 BP |
5974 | if (!is_all_zeros(nci->zero, sizeof nci->zero)) { |
5975 | return OFPERR_NXBRC_MUST_BE_ZERO; | |
5976 | } | |
5977 | ||
5978 | ofconn_set_controller_id(ofconn, ntohs(nci->controller_id)); | |
5979 | return 0; | |
5980 | } | |
5981 | ||
90bf1e07 | 5982 | static enum ofperr |
d1e2cf21 | 5983 | handle_barrier_request(struct ofconn *ofconn, const struct ofp_header *oh) |
246e61ea | 5984 | { |
246e61ea JP |
5985 | struct ofpbuf *buf; |
5986 | ||
982697a4 BP |
5987 | buf = ofpraw_alloc_reply((oh->version == OFP10_VERSION |
5988 | ? OFPRAW_OFPT10_BARRIER_REPLY | |
5989 | : OFPRAW_OFPT11_BARRIER_REPLY), oh, 0); | |
b0421aa2 | 5990 | ofconn_send_reply(ofconn, buf); |
246e61ea JP |
5991 | return 0; |
5992 | } | |
5993 | ||
2b07c8b1 BP |
5994 | static void |
5995 | ofproto_compose_flow_refresh_update(const struct rule *rule, | |
5996 | enum nx_flow_monitor_flags flags, | |
140f36ba DDP |
5997 | struct ovs_list *msgs, |
5998 | const struct tun_table *tun_table) | |
15aaf599 | 5999 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 | 6000 | { |
6f00e29b | 6001 | const struct rule_actions *actions; |
2b07c8b1 BP |
6002 | struct ofputil_flow_update fu; |
6003 | ||
2b07c8b1 BP |
6004 | fu.event = (flags & (NXFMF_INITIAL | NXFMF_ADD) |
6005 | ? NXFME_ADDED : NXFME_MODIFIED); | |
6006 | fu.reason = 0; | |
d10976b7 | 6007 | ovs_mutex_lock(&rule->mutex); |
2b07c8b1 BP |
6008 | fu.idle_timeout = rule->idle_timeout; |
6009 | fu.hard_timeout = rule->hard_timeout; | |
d10976b7 | 6010 | ovs_mutex_unlock(&rule->mutex); |
2b07c8b1 BP |
6011 | fu.table_id = rule->table_id; |
6012 | fu.cookie = rule->flow_cookie; | |
140f36ba | 6013 | minimatch_expand(&rule->cr.match, &fu.match); |
6b140a4e | 6014 | fu.priority = rule->cr.priority; |
6f00e29b | 6015 | |
b20f4073 | 6016 | actions = flags & NXFMF_ACTIONS ? rule_get_actions(rule) : NULL; |
6f00e29b BP |
6017 | fu.ofpacts = actions ? actions->ofpacts : NULL; |
6018 | fu.ofpacts_len = actions ? actions->ofpacts_len : 0; | |
2b07c8b1 | 6019 | |
417e7e66 | 6020 | if (ovs_list_is_empty(msgs)) { |
2b07c8b1 BP |
6021 | ofputil_start_flow_update(msgs); |
6022 | } | |
140f36ba | 6023 | ofputil_append_flow_update(&fu, msgs, tun_table); |
2b07c8b1 BP |
6024 | } |
6025 | ||
6026 | void | |
a8e547c1 | 6027 | ofmonitor_compose_refresh_updates(struct rule_collection *rules, |
ca6ba700 | 6028 | struct ovs_list *msgs) |
15aaf599 | 6029 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 | 6030 | { |
fe59694b | 6031 | struct rule *rule; |
2b07c8b1 | 6032 | |
fe59694b | 6033 | RULE_COLLECTION_FOR_EACH (rule, rules) { |
2b07c8b1 BP |
6034 | enum nx_flow_monitor_flags flags = rule->monitor_flags; |
6035 | rule->monitor_flags = 0; | |
6036 | ||
140f36ba DDP |
6037 | ofproto_compose_flow_refresh_update(rule, flags, msgs, |
6038 | ofproto_get_tun_tab(rule->ofproto)); | |
2b07c8b1 BP |
6039 | } |
6040 | } | |
6041 | ||
6042 | static void | |
6043 | ofproto_collect_ofmonitor_refresh_rule(const struct ofmonitor *m, | |
6044 | struct rule *rule, uint64_t seqno, | |
a8e547c1 | 6045 | struct rule_collection *rules) |
15aaf599 | 6046 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
6047 | { |
6048 | enum nx_flow_monitor_flags update; | |
6049 | ||
5e8b38b0 | 6050 | if (rule_is_hidden(rule)) { |
2b07c8b1 BP |
6051 | return; |
6052 | } | |
6053 | ||
b20f4073 | 6054 | if (!ofproto_rule_has_out_port(rule, m->out_port)) { |
2b07c8b1 BP |
6055 | return; |
6056 | } | |
6057 | ||
6058 | if (seqno) { | |
6059 | if (rule->add_seqno > seqno) { | |
6060 | update = NXFMF_ADD | NXFMF_MODIFY; | |
6061 | } else if (rule->modify_seqno > seqno) { | |
6062 | update = NXFMF_MODIFY; | |
6063 | } else { | |
6064 | return; | |
6065 | } | |
6066 | ||
6067 | if (!(m->flags & update)) { | |
6068 | return; | |
6069 | } | |
6070 | } else { | |
6071 | update = NXFMF_INITIAL; | |
6072 | } | |
6073 | ||
6074 | if (!rule->monitor_flags) { | |
a8e547c1 | 6075 | rule_collection_add(rules, rule); |
2b07c8b1 BP |
6076 | } |
6077 | rule->monitor_flags |= update | (m->flags & NXFMF_ACTIONS); | |
6078 | } | |
6079 | ||
6080 | static void | |
6081 | ofproto_collect_ofmonitor_refresh_rules(const struct ofmonitor *m, | |
6082 | uint64_t seqno, | |
a8e547c1 | 6083 | struct rule_collection *rules) |
15aaf599 | 6084 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
6085 | { |
6086 | const struct ofproto *ofproto = ofconn_get_ofproto(m->ofconn); | |
2b07c8b1 | 6087 | const struct oftable *table; |
81a76618 | 6088 | struct cls_rule target; |
2b07c8b1 | 6089 | |
bd53aa17 | 6090 | cls_rule_init_from_minimatch(&target, &m->match, 0); |
2b07c8b1 | 6091 | FOR_EACH_MATCHING_TABLE (table, m->table_id, ofproto) { |
2b07c8b1 BP |
6092 | struct rule *rule; |
6093 | ||
44e0c35d | 6094 | CLS_FOR_EACH_TARGET (rule, cr, &table->cls, &target, OVS_VERSION_MAX) { |
2b07c8b1 BP |
6095 | ofproto_collect_ofmonitor_refresh_rule(m, rule, seqno, rules); |
6096 | } | |
6097 | } | |
48d28ac1 | 6098 | cls_rule_destroy(&target); |
2b07c8b1 BP |
6099 | } |
6100 | ||
6101 | static void | |
6102 | ofproto_collect_ofmonitor_initial_rules(struct ofmonitor *m, | |
a8e547c1 | 6103 | struct rule_collection *rules) |
15aaf599 | 6104 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
6105 | { |
6106 | if (m->flags & NXFMF_INITIAL) { | |
6107 | ofproto_collect_ofmonitor_refresh_rules(m, 0, rules); | |
6108 | } | |
6109 | } | |
6110 | ||
6111 | void | |
6112 | ofmonitor_collect_resume_rules(struct ofmonitor *m, | |
a8e547c1 | 6113 | uint64_t seqno, struct rule_collection *rules) |
15aaf599 | 6114 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
6115 | { |
6116 | ofproto_collect_ofmonitor_refresh_rules(m, seqno, rules); | |
6117 | } | |
6118 | ||
7b900689 SH |
6119 | static enum ofperr |
6120 | flow_monitor_delete(struct ofconn *ofconn, uint32_t id) | |
6121 | OVS_REQUIRES(ofproto_mutex) | |
6122 | { | |
6123 | struct ofmonitor *m; | |
6124 | enum ofperr error; | |
6125 | ||
6126 | m = ofmonitor_lookup(ofconn, id); | |
6127 | if (m) { | |
6128 | ofmonitor_destroy(m); | |
6129 | error = 0; | |
6130 | } else { | |
6131 | error = OFPERR_OFPMOFC_UNKNOWN_MONITOR; | |
6132 | } | |
6133 | ||
6134 | return error; | |
6135 | } | |
6136 | ||
2b07c8b1 | 6137 | static enum ofperr |
982697a4 | 6138 | handle_flow_monitor_request(struct ofconn *ofconn, const struct ofp_header *oh) |
15aaf599 | 6139 | OVS_EXCLUDED(ofproto_mutex) |
2b07c8b1 BP |
6140 | { |
6141 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
2b07c8b1 | 6142 | |
0a2869d5 BP |
6143 | struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length)); |
6144 | ||
6145 | struct ofmonitor **monitors = NULL; | |
6146 | size_t allocated_monitors = 0; | |
6147 | size_t n_monitors = 0; | |
6148 | ||
6149 | enum ofperr error; | |
15aaf599 BP |
6150 | |
6151 | ovs_mutex_lock(&ofproto_mutex); | |
2b07c8b1 BP |
6152 | for (;;) { |
6153 | struct ofputil_flow_monitor_request request; | |
6154 | struct ofmonitor *m; | |
6155 | int retval; | |
6156 | ||
6157 | retval = ofputil_decode_flow_monitor_request(&request, &b); | |
6158 | if (retval == EOF) { | |
6159 | break; | |
6160 | } else if (retval) { | |
6161 | error = retval; | |
6162 | goto error; | |
6163 | } | |
6164 | ||
6165 | if (request.table_id != 0xff | |
6166 | && request.table_id >= ofproto->n_tables) { | |
6167 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
6168 | goto error; | |
6169 | } | |
6170 | ||
6171 | error = ofmonitor_create(&request, ofconn, &m); | |
6172 | if (error) { | |
6173 | goto error; | |
6174 | } | |
6175 | ||
6176 | if (n_monitors >= allocated_monitors) { | |
6177 | monitors = x2nrealloc(monitors, &allocated_monitors, | |
6178 | sizeof *monitors); | |
6179 | } | |
6180 | monitors[n_monitors++] = m; | |
6181 | } | |
6182 | ||
0a2869d5 | 6183 | struct rule_collection rules; |
a8e547c1 | 6184 | rule_collection_init(&rules); |
0a2869d5 | 6185 | for (size_t i = 0; i < n_monitors; i++) { |
2b07c8b1 BP |
6186 | ofproto_collect_ofmonitor_initial_rules(monitors[i], &rules); |
6187 | } | |
6188 | ||
0a2869d5 | 6189 | struct ovs_list replies; |
982697a4 | 6190 | ofpmp_init(&replies, oh); |
2b07c8b1 | 6191 | ofmonitor_compose_refresh_updates(&rules, &replies); |
15aaf599 BP |
6192 | ovs_mutex_unlock(&ofproto_mutex); |
6193 | ||
a8e547c1 BP |
6194 | rule_collection_destroy(&rules); |
6195 | ||
2b07c8b1 | 6196 | ofconn_send_replies(ofconn, &replies); |
2b07c8b1 BP |
6197 | free(monitors); |
6198 | ||
6199 | return 0; | |
6200 | ||
6201 | error: | |
0a2869d5 | 6202 | for (size_t i = 0; i < n_monitors; i++) { |
2b07c8b1 BP |
6203 | ofmonitor_destroy(monitors[i]); |
6204 | } | |
6205 | free(monitors); | |
4cd1bc9d BP |
6206 | ovs_mutex_unlock(&ofproto_mutex); |
6207 | ||
2b07c8b1 BP |
6208 | return error; |
6209 | } | |
6210 | ||
6211 | static enum ofperr | |
6212 | handle_flow_monitor_cancel(struct ofconn *ofconn, const struct ofp_header *oh) | |
15aaf599 | 6213 | OVS_EXCLUDED(ofproto_mutex) |
2b07c8b1 | 6214 | { |
15aaf599 | 6215 | enum ofperr error; |
2b07c8b1 BP |
6216 | uint32_t id; |
6217 | ||
6218 | id = ofputil_decode_flow_monitor_cancel(oh); | |
15aaf599 BP |
6219 | |
6220 | ovs_mutex_lock(&ofproto_mutex); | |
7b900689 | 6221 | error = flow_monitor_delete(ofconn, id); |
15aaf599 | 6222 | ovs_mutex_unlock(&ofproto_mutex); |
2b07c8b1 | 6223 | |
15aaf599 | 6224 | return error; |
2b07c8b1 BP |
6225 | } |
6226 | ||
9cae45dc JR |
6227 | /* Meters implementation. |
6228 | * | |
6229 | * Meter table entry, indexed by the OpenFlow meter_id. | |
9cae45dc JR |
6230 | * 'created' is used to compute the duration for meter stats. |
6231 | * 'list rules' is needed so that we can delete the dependent rules when the | |
6232 | * meter table entry is deleted. | |
6233 | * 'provider_meter_id' is for the provider's private use. | |
6234 | */ | |
6235 | struct meter { | |
ba8cff36 | 6236 | struct hmap_node node; /* In ofproto->meters. */ |
9cae45dc | 6237 | long long int created; /* Time created. */ |
ca6ba700 | 6238 | struct ovs_list rules; /* List of "struct rule_dpif"s. */ |
ba8cff36 | 6239 | uint32_t id; /* OpenFlow meter_id. */ |
9cae45dc JR |
6240 | ofproto_meter_id provider_meter_id; |
6241 | uint16_t flags; /* Meter flags. */ | |
6242 | uint16_t n_bands; /* Number of meter bands. */ | |
6243 | struct ofputil_meter_band *bands; | |
6244 | }; | |
6245 | ||
ba8cff36 AZ |
6246 | static struct meter * |
6247 | ofproto_get_meter(const struct ofproto *ofproto, uint32_t meter_id) | |
6248 | { | |
6249 | struct meter *meter; | |
6250 | uint32_t hash = hash_int(meter_id, 0); | |
6251 | ||
6252 | HMAP_FOR_EACH_WITH_HASH (meter, node, hash, &ofproto->meters) { | |
6253 | if (meter->id == meter_id) { | |
6254 | return meter; | |
6255 | } | |
6256 | } | |
6257 | ||
6258 | return NULL; | |
6259 | } | |
6260 | ||
9e638f22 AZ |
6261 | static uint32_t * |
6262 | ofproto_upcall_meter_ptr(struct ofproto *ofproto, uint32_t meter_id) | |
6263 | { | |
6264 | switch(meter_id) { | |
6265 | case OFPM13_SLOWPATH: | |
6266 | return &ofproto->slowpath_meter_id; | |
6267 | break; | |
6268 | case OFPM13_CONTROLLER: | |
6269 | return &ofproto->controller_meter_id; | |
6270 | break; | |
6271 | case OFPM13_ALL: | |
6272 | OVS_NOT_REACHED(); | |
6273 | default: | |
6274 | return NULL; | |
6275 | } | |
6276 | } | |
6277 | ||
ba8cff36 AZ |
6278 | static void |
6279 | ofproto_add_meter(struct ofproto *ofproto, struct meter *meter) | |
6280 | { | |
9e638f22 AZ |
6281 | uint32_t *upcall_meter_ptr = ofproto_upcall_meter_ptr(ofproto, meter->id); |
6282 | ||
6283 | /* Cache datapath meter IDs of special meters. */ | |
6284 | if (upcall_meter_ptr) { | |
6285 | *upcall_meter_ptr = meter->provider_meter_id.uint32; | |
6286 | } | |
6287 | ||
ba8cff36 AZ |
6288 | hmap_insert(&ofproto->meters, &meter->node, hash_int(meter->id, 0)); |
6289 | } | |
6290 | ||
9cae45dc | 6291 | /* |
076caa2f JR |
6292 | * This is used in instruction validation at flow set-up time, to map |
6293 | * the OpenFlow meter ID to the corresponding datapath provider meter | |
6294 | * ID. If either does not exist, returns false. Otherwise updates | |
6295 | * the meter action and returns true. | |
9cae45dc | 6296 | */ |
076caa2f JR |
6297 | static bool |
6298 | ofproto_fix_meter_action(const struct ofproto *ofproto, | |
6299 | struct ofpact_meter *ma) | |
6300 | { | |
ba8cff36 AZ |
6301 | if (ma->meter_id) { |
6302 | const struct meter *meter = ofproto_get_meter(ofproto, ma->meter_id); | |
076caa2f JR |
6303 | |
6304 | if (meter && meter->provider_meter_id.uint32 != UINT32_MAX) { | |
6305 | /* Update the action with the provider's meter ID, so that we | |
6306 | * do not need any synchronization between ofproto_dpif_xlate | |
6307 | * and ofproto for meter table access. */ | |
6308 | ma->provider_meter_id = meter->provider_meter_id.uint32; | |
6309 | return true; | |
9cae45dc JR |
6310 | } |
6311 | } | |
076caa2f | 6312 | return false; |
9cae45dc JR |
6313 | } |
6314 | ||
206ddb9a JP |
6315 | /* This is used in instruction validation at flow set-up time, to map |
6316 | * the OpenFlow meter ID in a controller action to the corresponding | |
6317 | * datapath provider meter ID. If either does not exist, sets the | |
6318 | * provider meter id to a value to prevent the provider from using it | |
6319 | * and returns false. Otherwise, updates the meter action and returns | |
6320 | * true. */ | |
6321 | static bool | |
6322 | ofproto_fix_controller_action(const struct ofproto *ofproto, | |
6323 | struct ofpact_controller *ca) | |
6324 | { | |
6325 | if (ca->meter_id == NX_CTLR_NO_METER) { | |
6326 | ca->provider_meter_id = UINT32_MAX; | |
6327 | return true; | |
6328 | } | |
6329 | ||
6330 | const struct meter *meter = ofproto_get_meter(ofproto, ca->meter_id); | |
6331 | ||
6332 | if (meter && meter->provider_meter_id.uint32 != UINT32_MAX) { | |
6333 | /* Update the action with the provider's meter ID, so that we | |
6334 | * do not need any synchronization between ofproto_dpif_xlate | |
6335 | * and ofproto for meter table access. */ | |
6336 | ca->provider_meter_id = meter->provider_meter_id.uint32; | |
6337 | return true; | |
6338 | } | |
6339 | ||
6340 | /* Prevent the meter from being set by the ofproto provider. */ | |
6341 | ca->provider_meter_id = UINT32_MAX; | |
6342 | return false; | |
6343 | } | |
6344 | ||
062fea06 BP |
6345 | /* Finds the meter invoked by 'rule''s actions and adds 'rule' to the meter's |
6346 | * list of rules. */ | |
6347 | static void | |
6348 | meter_insert_rule(struct rule *rule) | |
6349 | { | |
6350 | const struct rule_actions *a = rule_get_actions(rule); | |
6351 | uint32_t meter_id = ofpacts_get_meter(a->ofpacts, a->ofpacts_len); | |
ba8cff36 | 6352 | struct meter *meter = ofproto_get_meter(rule->ofproto, meter_id); |
062fea06 | 6353 | |
417e7e66 | 6354 | ovs_list_insert(&meter->rules, &rule->meter_list_node); |
062fea06 BP |
6355 | } |
6356 | ||
9cae45dc JR |
6357 | static void |
6358 | meter_update(struct meter *meter, const struct ofputil_meter_config *config) | |
6359 | { | |
6360 | free(meter->bands); | |
6361 | ||
6362 | meter->flags = config->flags; | |
6363 | meter->n_bands = config->n_bands; | |
6364 | meter->bands = xmemdup(config->bands, | |
6365 | config->n_bands * sizeof *meter->bands); | |
6366 | } | |
6367 | ||
6368 | static struct meter * | |
6369 | meter_create(const struct ofputil_meter_config *config, | |
6370 | ofproto_meter_id provider_meter_id) | |
6371 | { | |
6372 | struct meter *meter; | |
6373 | ||
6374 | meter = xzalloc(sizeof *meter); | |
6375 | meter->provider_meter_id = provider_meter_id; | |
6376 | meter->created = time_msec(); | |
ba8cff36 | 6377 | meter->id = config->meter_id; |
417e7e66 | 6378 | ovs_list_init(&meter->rules); |
9cae45dc JR |
6379 | |
6380 | meter_update(meter, config); | |
6381 | ||
6382 | return meter; | |
6383 | } | |
6384 | ||
6b3f7f02 | 6385 | static void |
ba8cff36 | 6386 | meter_destroy(struct ofproto *ofproto, struct meter *meter) |
15aaf599 | 6387 | OVS_REQUIRES(ofproto_mutex) |
6b3f7f02 | 6388 | { |
9e638f22 AZ |
6389 | uint32_t *upcall_meter_ptr; |
6390 | upcall_meter_ptr = ofproto_upcall_meter_ptr(ofproto, meter->id); | |
6391 | if (upcall_meter_ptr) { | |
6392 | *upcall_meter_ptr = UINT32_MAX; | |
6393 | } | |
6394 | ||
ba8cff36 AZ |
6395 | if (!ovs_list_is_empty(&meter->rules)) { |
6396 | struct rule_collection rules; | |
6397 | struct rule *rule; | |
3059d7e5 | 6398 | |
ba8cff36 AZ |
6399 | rule_collection_init(&rules); |
6400 | LIST_FOR_EACH (rule, meter_list_node, &meter->rules) { | |
6401 | rule_collection_add(&rules, rule); | |
6402 | } | |
6403 | delete_flows__(&rules, OFPRR_METER_DELETE, NULL); | |
6404 | } | |
3059d7e5 | 6405 | |
ba8cff36 AZ |
6406 | ofproto->ofproto_class->meter_del(ofproto, meter->provider_meter_id); |
6407 | free(meter->bands); | |
6408 | free(meter); | |
6409 | } | |
3059d7e5 | 6410 | |
ba8cff36 AZ |
6411 | static void |
6412 | meter_delete(struct ofproto *ofproto, uint32_t meter_id) | |
6413 | OVS_REQUIRES(ofproto_mutex) | |
6414 | { | |
6415 | struct meter *meter = ofproto_get_meter(ofproto, meter_id); | |
6416 | ||
6417 | if (meter) { | |
6418 | hmap_remove(&ofproto->meters, &meter->node); | |
6419 | meter_destroy(ofproto, meter); | |
6420 | } | |
6421 | } | |
6422 | ||
6423 | static void | |
6424 | meter_delete_all(struct ofproto *ofproto) | |
6425 | OVS_REQUIRES(ofproto_mutex) | |
6426 | { | |
6427 | struct meter *meter, *next; | |
6428 | ||
6429 | HMAP_FOR_EACH_SAFE (meter, next, node, &ofproto->meters) { | |
6430 | hmap_remove(&ofproto->meters, &meter->node); | |
6431 | meter_destroy(ofproto, meter); | |
6b3f7f02 JR |
6432 | } |
6433 | } | |
6434 | ||
9cae45dc JR |
6435 | static enum ofperr |
6436 | handle_add_meter(struct ofproto *ofproto, struct ofputil_meter_mod *mm) | |
6437 | { | |
6438 | ofproto_meter_id provider_meter_id = { UINT32_MAX }; | |
ba8cff36 | 6439 | struct meter *meter = ofproto_get_meter(ofproto, mm->meter.meter_id); |
9cae45dc JR |
6440 | enum ofperr error; |
6441 | ||
ba8cff36 | 6442 | if (meter) { |
9cae45dc JR |
6443 | return OFPERR_OFPMMFC_METER_EXISTS; |
6444 | } | |
6445 | ||
6446 | error = ofproto->ofproto_class->meter_set(ofproto, &provider_meter_id, | |
6447 | &mm->meter); | |
6448 | if (!error) { | |
6449 | ovs_assert(provider_meter_id.uint32 != UINT32_MAX); | |
ba8cff36 AZ |
6450 | meter = meter_create(&mm->meter, provider_meter_id); |
6451 | ofproto_add_meter(ofproto, meter); | |
9cae45dc | 6452 | } |
f0f8c6c2 | 6453 | return error; |
9cae45dc JR |
6454 | } |
6455 | ||
6456 | static enum ofperr | |
6457 | handle_modify_meter(struct ofproto *ofproto, struct ofputil_meter_mod *mm) | |
6458 | { | |
ba8cff36 | 6459 | struct meter *meter = ofproto_get_meter(ofproto, mm->meter.meter_id); |
9cae45dc | 6460 | enum ofperr error; |
e555eb7c | 6461 | uint32_t provider_meter_id; |
9cae45dc JR |
6462 | |
6463 | if (!meter) { | |
6464 | return OFPERR_OFPMMFC_UNKNOWN_METER; | |
6465 | } | |
6466 | ||
e555eb7c | 6467 | provider_meter_id = meter->provider_meter_id.uint32; |
9cae45dc JR |
6468 | error = ofproto->ofproto_class->meter_set(ofproto, |
6469 | &meter->provider_meter_id, | |
6470 | &mm->meter); | |
e555eb7c | 6471 | ovs_assert(meter->provider_meter_id.uint32 == provider_meter_id); |
9cae45dc JR |
6472 | if (!error) { |
6473 | meter_update(meter, &mm->meter); | |
6474 | } | |
6475 | return error; | |
6476 | } | |
6477 | ||
6478 | static enum ofperr | |
baae3d02 | 6479 | handle_delete_meter(struct ofconn *ofconn, struct ofputil_meter_mod *mm) |
15aaf599 | 6480 | OVS_EXCLUDED(ofproto_mutex) |
9cae45dc JR |
6481 | { |
6482 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
6483 | uint32_t meter_id = mm->meter.meter_id; | |
9cae45dc | 6484 | |
ba8cff36 AZ |
6485 | /* OpenFlow does not support Meter ID 0. */ |
6486 | if (meter_id) { | |
6487 | ovs_mutex_lock(&ofproto_mutex); | |
6488 | ||
6489 | if (meter_id == OFPM13_ALL) { | |
6490 | meter_delete_all(ofproto); | |
6491 | } else { | |
6492 | meter_delete(ofproto, meter_id); | |
9cae45dc | 6493 | } |
9cae45dc | 6494 | |
ba8cff36 AZ |
6495 | ovs_mutex_unlock(&ofproto_mutex); |
6496 | } | |
a8e547c1 | 6497 | |
ba8cff36 | 6498 | return 0; |
9cae45dc JR |
6499 | } |
6500 | ||
6501 | static enum ofperr | |
6502 | handle_meter_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
6503 | { | |
6504 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
6505 | struct ofputil_meter_mod mm; | |
6506 | uint64_t bands_stub[256 / 8]; | |
6507 | struct ofpbuf bands; | |
6508 | uint32_t meter_id; | |
6509 | enum ofperr error; | |
6510 | ||
6511 | error = reject_slave_controller(ofconn); | |
6512 | if (error) { | |
6513 | return error; | |
6514 | } | |
6515 | ||
6516 | ofpbuf_use_stub(&bands, bands_stub, sizeof bands_stub); | |
6517 | ||
6518 | error = ofputil_decode_meter_mod(oh, &mm, &bands); | |
6519 | if (error) { | |
6520 | goto exit_free_bands; | |
6521 | } | |
6522 | ||
6523 | meter_id = mm.meter.meter_id; | |
6524 | ||
6525 | if (mm.command != OFPMC13_DELETE) { | |
6526 | /* Fails also when meters are not implemented by the provider. */ | |
9e638f22 | 6527 | if (ofproto->meter_features.max_meters == 0) { |
9cae45dc JR |
6528 | error = OFPERR_OFPMMFC_INVALID_METER; |
6529 | goto exit_free_bands; | |
9e638f22 AZ |
6530 | } |
6531 | ||
6532 | if (meter_id == 0) { | |
6533 | error = OFPERR_OFPMMFC_INVALID_METER; | |
b31e8700 | 6534 | goto exit_free_bands; |
9e638f22 AZ |
6535 | } else if (meter_id > OFPM13_MAX) { |
6536 | switch(meter_id) { | |
6537 | case OFPM13_SLOWPATH: | |
6538 | case OFPM13_CONTROLLER: | |
6539 | break; | |
6540 | case OFPM13_ALL: | |
6541 | default: | |
6542 | error = OFPERR_OFPMMFC_INVALID_METER; | |
6543 | goto exit_free_bands; | |
6544 | } | |
9cae45dc JR |
6545 | } |
6546 | if (mm.meter.n_bands > ofproto->meter_features.max_bands) { | |
6547 | error = OFPERR_OFPMMFC_OUT_OF_BANDS; | |
6548 | goto exit_free_bands; | |
6549 | } | |
6550 | } | |
6551 | ||
6552 | switch (mm.command) { | |
6553 | case OFPMC13_ADD: | |
6554 | error = handle_add_meter(ofproto, &mm); | |
6555 | break; | |
6556 | ||
6557 | case OFPMC13_MODIFY: | |
6558 | error = handle_modify_meter(ofproto, &mm); | |
6559 | break; | |
6560 | ||
6561 | case OFPMC13_DELETE: | |
baae3d02 | 6562 | error = handle_delete_meter(ofconn, &mm); |
9cae45dc JR |
6563 | break; |
6564 | ||
6565 | default: | |
6566 | error = OFPERR_OFPMMFC_BAD_COMMAND; | |
6567 | break; | |
6568 | } | |
6569 | ||
3c35db62 NR |
6570 | if (!error) { |
6571 | struct ofputil_requestforward rf; | |
6572 | rf.xid = oh->xid; | |
6573 | rf.reason = OFPRFR_METER_MOD; | |
6574 | rf.meter_mod = &mm; | |
6575 | connmgr_send_requestforward(ofproto->connmgr, ofconn, &rf); | |
6576 | } | |
6577 | ||
9cae45dc JR |
6578 | exit_free_bands: |
6579 | ofpbuf_uninit(&bands); | |
6580 | return error; | |
6581 | } | |
6582 | ||
6583 | static enum ofperr | |
6584 | handle_meter_features_request(struct ofconn *ofconn, | |
6585 | const struct ofp_header *request) | |
6586 | { | |
6587 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
6588 | struct ofputil_meter_features features; | |
6589 | struct ofpbuf *b; | |
6590 | ||
6591 | if (ofproto->ofproto_class->meter_get_features) { | |
6592 | ofproto->ofproto_class->meter_get_features(ofproto, &features); | |
6593 | } else { | |
6594 | memset(&features, 0, sizeof features); | |
6595 | } | |
6596 | b = ofputil_encode_meter_features_reply(&features, request); | |
6597 | ||
6598 | ofconn_send_reply(ofconn, b); | |
6599 | return 0; | |
6600 | } | |
6601 | ||
ba8cff36 AZ |
6602 | static void |
6603 | meter_request_reply(struct ofproto *ofproto, struct meter *meter, | |
6604 | enum ofptype type, struct ovs_list *replies) | |
6605 | { | |
6606 | uint64_t bands_stub[256 / 8]; | |
6607 | struct ofpbuf bands; | |
6608 | ||
6609 | ofpbuf_use_stub(&bands, bands_stub, sizeof bands_stub); | |
6610 | ||
6611 | if (type == OFPTYPE_METER_STATS_REQUEST) { | |
6612 | struct ofputil_meter_stats stats; | |
6613 | ||
6614 | stats.meter_id = meter->id; | |
6615 | ||
6616 | /* Provider sets the packet and byte counts, we do the rest. */ | |
6617 | stats.flow_count = ovs_list_size(&meter->rules); | |
6618 | calc_duration(meter->created, time_msec(), | |
6619 | &stats.duration_sec, &stats.duration_nsec); | |
6620 | stats.n_bands = meter->n_bands; | |
6621 | ofpbuf_clear(&bands); | |
6622 | stats.bands = ofpbuf_put_uninit(&bands, meter->n_bands | |
6623 | * sizeof *stats.bands); | |
6624 | ||
6625 | if (!ofproto->ofproto_class->meter_get(ofproto, | |
6626 | meter->provider_meter_id, | |
6627 | &stats, meter->n_bands)) { | |
6628 | ofputil_append_meter_stats(replies, &stats); | |
6629 | } | |
6630 | } else { /* type == OFPTYPE_METER_CONFIG_REQUEST */ | |
6631 | struct ofputil_meter_config config; | |
6632 | ||
6633 | config.meter_id = meter->id; | |
6634 | config.flags = meter->flags; | |
6635 | config.n_bands = meter->n_bands; | |
6636 | config.bands = meter->bands; | |
6637 | ofputil_append_meter_config(replies, &config); | |
6638 | } | |
6639 | ||
6640 | ofpbuf_uninit(&bands); | |
6641 | } | |
6642 | ||
6643 | static void | |
6644 | meter_request_reply_all(struct ofproto *ofproto, enum ofptype type, | |
6645 | struct ovs_list *replies) | |
6646 | { | |
6647 | struct meter *meter; | |
6648 | ||
6649 | HMAP_FOR_EACH (meter, node, &ofproto->meters) { | |
6650 | meter_request_reply(ofproto, meter, type, replies); | |
6651 | } | |
6652 | } | |
6653 | ||
9cae45dc JR |
6654 | static enum ofperr |
6655 | handle_meter_request(struct ofconn *ofconn, const struct ofp_header *request, | |
6656 | enum ofptype type) | |
6657 | { | |
6658 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
ca6ba700 | 6659 | struct ovs_list replies; |
ba8cff36 AZ |
6660 | uint32_t meter_id; |
6661 | struct meter *meter; | |
9cae45dc JR |
6662 | |
6663 | ofputil_decode_meter_request(request, &meter_id); | |
6664 | ||
ba8cff36 AZ |
6665 | if (meter_id != OFPM13_ALL) { |
6666 | meter = ofproto_get_meter(ofproto, meter_id); | |
6667 | if (!meter) { | |
6668 | /* Meter does not exist. */ | |
9cae45dc JR |
6669 | return OFPERR_OFPMMFC_UNKNOWN_METER; |
6670 | } | |
ba8cff36 AZ |
6671 | } else { |
6672 | /* GCC 4.9.2 complains about 'meter' can potentially be used | |
6673 | * uninitialized. Logically, this is a false alarm since | |
6674 | * meter is only used when meter_id != OFPM13_ALL. | |
6675 | * Set NULL to make compiler happy. */ | |
6676 | meter = NULL; | |
9cae45dc JR |
6677 | } |
6678 | ||
9cae45dc | 6679 | ofpmp_init(&replies, request); |
ba8cff36 AZ |
6680 | if (meter_id == OFPM13_ALL) { |
6681 | meter_request_reply_all(ofproto, type, &replies); | |
6682 | } else { | |
6683 | meter_request_reply(ofproto, meter, type, &replies); | |
9cae45dc | 6684 | } |
9cae45dc | 6685 | ofconn_send_replies(ofconn, &replies); |
9cae45dc JR |
6686 | return 0; |
6687 | } | |
6688 | ||
db88b35c JR |
6689 | /* Returned group is RCU protected. */ |
6690 | static struct ofgroup * | |
5d08a275 JR |
6691 | ofproto_group_lookup__(const struct ofproto *ofproto, uint32_t group_id, |
6692 | ovs_version_t version) | |
db88b35c JR |
6693 | { |
6694 | struct ofgroup *group; | |
6695 | ||
6696 | CMAP_FOR_EACH_WITH_HASH (group, cmap_node, hash_int(group_id, 0), | |
6697 | &ofproto->groups) { | |
5d08a275 JR |
6698 | if (group->group_id == group_id |
6699 | && versions_visible_in_version(&group->versions, version)) { | |
db88b35c | 6700 | return group; |
7395c052 NZ |
6701 | } |
6702 | } | |
3fc3b679 | 6703 | |
db88b35c | 6704 | return NULL; |
7395c052 NZ |
6705 | } |
6706 | ||
3fc3b679 AZ |
6707 | /* If the group exists, this function increments the groups's reference count. |
6708 | * | |
6709 | * Make sure to call ofproto_group_unref() after no longer needing to maintain | |
6710 | * a reference to the group. */ | |
db88b35c | 6711 | struct ofgroup * |
76973237 | 6712 | ofproto_group_lookup(const struct ofproto *ofproto, uint32_t group_id, |
5d08a275 | 6713 | ovs_version_t version, bool take_ref) |
7395c052 | 6714 | { |
db88b35c | 6715 | struct ofgroup *group; |
7395c052 | 6716 | |
5d08a275 | 6717 | group = ofproto_group_lookup__(ofproto, group_id, version); |
76973237 | 6718 | if (group && take_ref) { |
db88b35c JR |
6719 | /* Not holding a lock, so it is possible that another thread releases |
6720 | * the last reference just before we manage to get one. */ | |
6721 | return ofproto_group_try_ref(group) ? group : NULL; | |
7395c052 | 6722 | } |
76973237 | 6723 | return group; |
7395c052 NZ |
6724 | } |
6725 | ||
cc099268 | 6726 | /* Caller should hold 'ofproto_mutex' if it is important that the |
db88b35c | 6727 | * group is not removed by someone else. */ |
7e9f8266 BP |
6728 | static bool |
6729 | ofproto_group_exists(const struct ofproto *ofproto, uint32_t group_id) | |
7e9f8266 | 6730 | { |
5d08a275 | 6731 | return ofproto_group_lookup__(ofproto, group_id, OVS_VERSION_MAX) != NULL; |
7e9f8266 BP |
6732 | } |
6733 | ||
cc099268 JR |
6734 | static void |
6735 | group_add_rule(struct ofgroup *group, struct rule *rule) | |
732feb93 | 6736 | { |
cc099268 JR |
6737 | rule_collection_add(&group->rules, rule); |
6738 | } | |
732feb93 | 6739 | |
cc099268 JR |
6740 | static void |
6741 | group_remove_rule(struct ofgroup *group, struct rule *rule) | |
6742 | { | |
6743 | rule_collection_remove(&group->rules, rule); | |
732feb93 SH |
6744 | } |
6745 | ||
7395c052 | 6746 | static void |
ca6ba700 | 6747 | append_group_stats(struct ofgroup *group, struct ovs_list *replies) |
cc099268 | 6748 | OVS_REQUIRES(ofproto_mutex) |
7395c052 NZ |
6749 | { |
6750 | struct ofputil_group_stats ogs; | |
eaf004bd | 6751 | const struct ofproto *ofproto = group->ofproto; |
7395c052 NZ |
6752 | long long int now = time_msec(); |
6753 | int error; | |
6754 | ||
646b2a9c SH |
6755 | ogs.bucket_stats = xmalloc(group->n_buckets * sizeof *ogs.bucket_stats); |
6756 | ||
732feb93 | 6757 | /* Provider sets the packet and byte counts, we do the rest. */ |
fe59694b | 6758 | ogs.ref_count = rule_collection_n(&group->rules); |
732feb93 SH |
6759 | ogs.n_buckets = group->n_buckets; |
6760 | ||
7395c052 NZ |
6761 | error = (ofproto->ofproto_class->group_get_stats |
6762 | ? ofproto->ofproto_class->group_get_stats(group, &ogs) | |
6763 | : EOPNOTSUPP); | |
6764 | if (error) { | |
7395c052 NZ |
6765 | ogs.packet_count = UINT64_MAX; |
6766 | ogs.byte_count = UINT64_MAX; | |
7395c052 NZ |
6767 | memset(ogs.bucket_stats, 0xff, |
6768 | ogs.n_buckets * sizeof *ogs.bucket_stats); | |
6769 | } | |
6770 | ||
6771 | ogs.group_id = group->group_id; | |
6772 | calc_duration(group->created, now, &ogs.duration_sec, &ogs.duration_nsec); | |
6773 | ||
6774 | ofputil_append_group_stats(replies, &ogs); | |
646b2a9c SH |
6775 | |
6776 | free(ogs.bucket_stats); | |
7395c052 NZ |
6777 | } |
6778 | ||
19187a71 BP |
6779 | static void |
6780 | handle_group_request(struct ofconn *ofconn, | |
6781 | const struct ofp_header *request, uint32_t group_id, | |
ca6ba700 | 6782 | void (*cb)(struct ofgroup *, struct ovs_list *replies)) |
cc099268 | 6783 | OVS_EXCLUDED(ofproto_mutex) |
7395c052 NZ |
6784 | { |
6785 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
7395c052 | 6786 | struct ofgroup *group; |
ca6ba700 | 6787 | struct ovs_list replies; |
7395c052 NZ |
6788 | |
6789 | ofpmp_init(&replies, request); | |
cc099268 JR |
6790 | /* Must exclude modifications to guarantee iterating groups. */ |
6791 | ovs_mutex_lock(&ofproto_mutex); | |
7395c052 | 6792 | if (group_id == OFPG_ALL) { |
db88b35c | 6793 | CMAP_FOR_EACH (group, cmap_node, &ofproto->groups) { |
3a46eaaf BP |
6794 | if (versions_visible_in_version(&group->versions, |
6795 | OVS_VERSION_MAX)) { | |
6796 | cb(group, &replies); | |
6797 | } | |
7395c052 | 6798 | } |
7395c052 | 6799 | } else { |
5d08a275 | 6800 | group = ofproto_group_lookup__(ofproto, group_id, OVS_VERSION_MAX); |
db88b35c | 6801 | if (group) { |
19187a71 | 6802 | cb(group, &replies); |
7395c052 NZ |
6803 | } |
6804 | } | |
cc099268 | 6805 | ovs_mutex_unlock(&ofproto_mutex); |
7395c052 | 6806 | ofconn_send_replies(ofconn, &replies); |
7395c052 NZ |
6807 | } |
6808 | ||
6809 | static enum ofperr | |
19187a71 BP |
6810 | handle_group_stats_request(struct ofconn *ofconn, |
6811 | const struct ofp_header *request) | |
7395c052 | 6812 | { |
19187a71 BP |
6813 | uint32_t group_id; |
6814 | enum ofperr error; | |
7395c052 | 6815 | |
19187a71 BP |
6816 | error = ofputil_decode_group_stats_request(request, &group_id); |
6817 | if (error) { | |
6818 | return error; | |
7395c052 | 6819 | } |
7395c052 | 6820 | |
19187a71 BP |
6821 | handle_group_request(ofconn, request, group_id, append_group_stats); |
6822 | return 0; | |
6823 | } | |
6824 | ||
6825 | static void | |
ca6ba700 | 6826 | append_group_desc(struct ofgroup *group, struct ovs_list *replies) |
19187a71 BP |
6827 | { |
6828 | struct ofputil_group_desc gds; | |
7395c052 | 6829 | |
19187a71 BP |
6830 | gds.group_id = group->group_id; |
6831 | gds.type = group->type; | |
53eb84a5 SH |
6832 | gds.props = group->props; |
6833 | ||
19187a71 BP |
6834 | ofputil_append_group_desc_reply(&gds, &group->buckets, replies); |
6835 | } | |
6836 | ||
6837 | static enum ofperr | |
6838 | handle_group_desc_stats_request(struct ofconn *ofconn, | |
6839 | const struct ofp_header *request) | |
6840 | { | |
6841 | handle_group_request(ofconn, request, | |
6842 | ofputil_decode_group_desc_request(request), | |
6843 | append_group_desc); | |
7395c052 NZ |
6844 | return 0; |
6845 | } | |
6846 | ||
6847 | static enum ofperr | |
6848 | handle_group_features_stats_request(struct ofconn *ofconn, | |
6849 | const struct ofp_header *request) | |
6850 | { | |
6851 | struct ofproto *p = ofconn_get_ofproto(ofconn); | |
6852 | struct ofpbuf *msg; | |
6853 | ||
6854 | msg = ofputil_encode_group_features_reply(&p->ogf, request); | |
6855 | if (msg) { | |
6856 | ofconn_send_reply(ofconn, msg); | |
6857 | } | |
6858 | ||
6859 | return 0; | |
6860 | } | |
6861 | ||
56085be5 | 6862 | static void |
e016fb63 BP |
6863 | put_queue_get_config_reply(struct ofport *port, uint32_t queue, |
6864 | struct ovs_list *replies) | |
e8f9a7bb | 6865 | { |
e016fb63 | 6866 | struct ofputil_queue_config qc; |
e8f9a7bb | 6867 | |
e016fb63 BP |
6868 | /* None of the existing queues have compatible properties, so we hard-code |
6869 | * omitting min_rate and max_rate. */ | |
6870 | qc.port = port->ofp_port; | |
6871 | qc.queue = queue; | |
6872 | qc.min_rate = UINT16_MAX; | |
6873 | qc.max_rate = UINT16_MAX; | |
6874 | ofputil_append_queue_get_config_reply(&qc, replies); | |
6875 | } | |
e8f9a7bb | 6876 | |
e016fb63 BP |
6877 | static int |
6878 | handle_queue_get_config_request_for_port(struct ofport *port, uint32_t queue, | |
6879 | struct ovs_list *replies) | |
6880 | { | |
6881 | struct smap details = SMAP_INITIALIZER(&details); | |
6882 | if (queue != OFPQ_ALL) { | |
6883 | int error = netdev_get_queue(port->netdev, queue, &details); | |
6884 | switch (error) { | |
6885 | case 0: | |
6886 | put_queue_get_config_reply(port, queue, replies); | |
6887 | break; | |
6888 | case EOPNOTSUPP: | |
6889 | case EINVAL: | |
6890 | return OFPERR_OFPQOFC_BAD_QUEUE; | |
6891 | default: | |
6892 | return OFPERR_NXQOFC_QUEUE_ERROR; | |
6893 | } | |
6894 | } else { | |
6895 | struct netdev_queue_dump queue_dump; | |
6896 | uint32_t queue_id; | |
6897 | ||
6898 | NETDEV_QUEUE_FOR_EACH (&queue_id, &details, &queue_dump, | |
6899 | port->netdev) { | |
6900 | put_queue_get_config_reply(port, queue_id, replies); | |
6901 | } | |
6902 | } | |
6903 | smap_destroy(&details); | |
6904 | return 0; | |
56085be5 BP |
6905 | } |
6906 | ||
6907 | static enum ofperr | |
6908 | handle_queue_get_config_request(struct ofconn *ofconn, | |
6909 | const struct ofp_header *oh) | |
6910 | { | |
e016fb63 BP |
6911 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
6912 | struct ovs_list replies; | |
6913 | struct ofport *port; | |
6914 | ofp_port_t req_port; | |
6915 | uint32_t req_queue; | |
6916 | enum ofperr error; | |
6917 | ||
6918 | error = ofputil_decode_queue_get_config_request(oh, &req_port, &req_queue); | |
6919 | if (error) { | |
6920 | return error; | |
6921 | } | |
6922 | ||
6923 | ofputil_start_queue_get_config_reply(oh, &replies); | |
6924 | if (req_port == OFPP_ANY) { | |
6925 | error = OFPERR_OFPQOFC_BAD_QUEUE; | |
6926 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { | |
6927 | if (!handle_queue_get_config_request_for_port(port, req_queue, | |
6928 | &replies)) { | |
6929 | error = 0; | |
6930 | } | |
6931 | } | |
6932 | } else { | |
6933 | port = ofproto_get_port(ofproto, req_port); | |
6934 | error = (port | |
6935 | ? handle_queue_get_config_request_for_port(port, req_queue, | |
6936 | &replies) | |
6937 | : OFPERR_OFPQOFC_BAD_PORT); | |
6938 | } | |
6939 | if (!error) { | |
6940 | ofconn_send_replies(ofconn, &replies); | |
6941 | } else { | |
6942 | ofpbuf_list_delete(&replies); | |
6943 | } | |
6944 | ||
6945 | return error; | |
e8f9a7bb VG |
6946 | } |
6947 | ||
836476ce BP |
6948 | /* Allocates, initializes, and constructs a new group in 'ofproto', obtaining |
6949 | * all the attributes for it from 'gm', and stores a pointer to it in | |
6950 | * '*ofgroup'. Makes the new group visible from the flow table starting from | |
6951 | * 'version'. | |
6952 | * | |
6953 | * Returns 0 if successful, otherwise an error code. If there is an error then | |
6954 | * '*ofgroup' is indeterminate upon return. */ | |
809c7548 | 6955 | static enum ofperr |
63eded98 | 6956 | init_group(struct ofproto *ofproto, const struct ofputil_group_mod *gm, |
5d08a275 | 6957 | ovs_version_t version, struct ofgroup **ofgroup) |
809c7548 RW |
6958 | { |
6959 | enum ofperr error; | |
eaf004bd | 6960 | const long long int now = time_msec(); |
809c7548 RW |
6961 | |
6962 | if (gm->group_id > OFPG_MAX) { | |
6963 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
6964 | } | |
6965 | if (gm->type > OFPGT11_FF) { | |
6966 | return OFPERR_OFPGMFC_BAD_TYPE; | |
6967 | } | |
6968 | ||
6969 | *ofgroup = ofproto->ofproto_class->group_alloc(); | |
6970 | if (!*ofgroup) { | |
6971 | VLOG_WARN_RL(&rl, "%s: failed to allocate group", ofproto->name); | |
6972 | return OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
6973 | } | |
6974 | ||
5d08a275 | 6975 | *CONST_CAST(struct ofproto **, &(*ofgroup)->ofproto) = ofproto; |
eaf004bd AZ |
6976 | *CONST_CAST(uint32_t *, &((*ofgroup)->group_id)) = gm->group_id; |
6977 | *CONST_CAST(enum ofp11_group_type *, &(*ofgroup)->type) = gm->type; | |
6978 | *CONST_CAST(long long int *, &((*ofgroup)->created)) = now; | |
6979 | *CONST_CAST(long long int *, &((*ofgroup)->modified)) = now; | |
809c7548 | 6980 | ovs_refcount_init(&(*ofgroup)->ref_count); |
cc099268 | 6981 | (*ofgroup)->being_deleted = false; |
809c7548 | 6982 | |
db88b35c JR |
6983 | ovs_list_init(CONST_CAST(struct ovs_list *, &(*ofgroup)->buckets)); |
6984 | ofputil_bucket_clone_list(CONST_CAST(struct ovs_list *, | |
6985 | &(*ofgroup)->buckets), | |
6986 | &gm->buckets, NULL); | |
63eded98 | 6987 | |
eaf004bd | 6988 | *CONST_CAST(uint32_t *, &(*ofgroup)->n_buckets) = |
417e7e66 | 6989 | ovs_list_size(&(*ofgroup)->buckets); |
809c7548 | 6990 | |
e8dba719 JR |
6991 | ofputil_group_properties_copy(CONST_CAST(struct ofputil_group_props *, |
6992 | &(*ofgroup)->props), | |
6993 | &gm->props); | |
cc099268 | 6994 | rule_collection_init(&(*ofgroup)->rules); |
bc65c25a | 6995 | |
5d08a275 JR |
6996 | /* Make group visible from 'version'. */ |
6997 | (*ofgroup)->versions = VERSIONS_INITIALIZER(version, | |
6998 | OVS_VERSION_NOT_REMOVED); | |
6999 | ||
809c7548 RW |
7000 | /* Construct called BEFORE any locks are held. */ |
7001 | error = ofproto->ofproto_class->group_construct(*ofgroup); | |
7002 | if (error) { | |
e8dba719 JR |
7003 | ofputil_group_properties_destroy(CONST_CAST(struct ofputil_group_props *, |
7004 | &(*ofgroup)->props)); | |
db88b35c JR |
7005 | ofputil_bucket_list_destroy(CONST_CAST(struct ovs_list *, |
7006 | &(*ofgroup)->buckets)); | |
809c7548 RW |
7007 | ofproto->ofproto_class->group_dealloc(*ofgroup); |
7008 | } | |
7009 | return error; | |
7010 | } | |
7011 | ||
6c5b90ce BP |
7012 | /* Implements the OFPGC11_ADD operation specified by 'gm', adding a group to |
7013 | * 'ofproto''s group table. Returns 0 on success or an OpenFlow error code on | |
7014 | * failure. */ | |
7395c052 | 7015 | static enum ofperr |
2b0b0b80 | 7016 | add_group_start(struct ofproto *ofproto, struct ofproto_group_mod *ogm) |
cc099268 | 7017 | OVS_REQUIRES(ofproto_mutex) |
7395c052 | 7018 | { |
7395c052 NZ |
7019 | enum ofperr error; |
7020 | ||
2b0b0b80 JR |
7021 | if (ofproto_group_exists(ofproto, ogm->gm.group_id)) { |
7022 | return OFPERR_OFPGMFC_GROUP_EXISTS; | |
7395c052 NZ |
7023 | } |
7024 | ||
2b0b0b80 JR |
7025 | if (ofproto->n_groups[ogm->gm.type] |
7026 | >= ofproto->ogf.max_groups[ogm->gm.type]) { | |
7027 | return OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
7395c052 NZ |
7028 | } |
7029 | ||
2b0b0b80 | 7030 | /* Allocate new group and initialize it. */ |
5d08a275 | 7031 | error = init_group(ofproto, &ogm->gm, ogm->version, &ogm->new_group); |
2b0b0b80 JR |
7032 | if (!error) { |
7033 | /* Insert new group. */ | |
7034 | cmap_insert(&ofproto->groups, &ogm->new_group->cmap_node, | |
7035 | hash_int(ogm->new_group->group_id, 0)); | |
7036 | ofproto->n_groups[ogm->new_group->type]++; | |
7395c052 | 7037 | } |
7395c052 NZ |
7038 | return error; |
7039 | } | |
7040 | ||
fce4730c SH |
7041 | /* Adds all of the buckets from 'ofgroup' to 'new_ofgroup'. The buckets |
7042 | * already in 'new_ofgroup' will be placed just after the (copy of the) bucket | |
7043 | * in 'ofgroup' with bucket ID 'command_bucket_id'. Special | |
7044 | * 'command_bucket_id' values OFPG15_BUCKET_FIRST and OFPG15_BUCKET_LAST are | |
7045 | * also honored. */ | |
7046 | static enum ofperr | |
7047 | copy_buckets_for_insert_bucket(const struct ofgroup *ofgroup, | |
7048 | struct ofgroup *new_ofgroup, | |
7049 | uint32_t command_bucket_id) | |
7050 | { | |
7051 | struct ofputil_bucket *last = NULL; | |
7052 | ||
7053 | if (command_bucket_id <= OFPG15_BUCKET_MAX) { | |
7054 | /* Check here to ensure that a bucket corresponding to | |
7055 | * command_bucket_id exists in the old bucket list. | |
7056 | * | |
7057 | * The subsequent search of below of new_ofgroup covers | |
7058 | * both buckets in the old bucket list and buckets added | |
7059 | * by the insert buckets group mod message this function processes. */ | |
7060 | if (!ofputil_bucket_find(&ofgroup->buckets, command_bucket_id)) { | |
7061 | return OFPERR_OFPGMFC_UNKNOWN_BUCKET; | |
7062 | } | |
7063 | ||
417e7e66 | 7064 | if (!ovs_list_is_empty(&new_ofgroup->buckets)) { |
fce4730c SH |
7065 | last = ofputil_bucket_list_back(&new_ofgroup->buckets); |
7066 | } | |
7067 | } | |
7068 | ||
db88b35c JR |
7069 | ofputil_bucket_clone_list(CONST_CAST(struct ovs_list *, |
7070 | &new_ofgroup->buckets), | |
7071 | &ofgroup->buckets, NULL); | |
fce4730c | 7072 | |
23a31238 | 7073 | if (ofputil_bucket_check_duplicate_id(&new_ofgroup->buckets)) { |
d2873d53 | 7074 | VLOG_INFO_RL(&rl, "Duplicate bucket id"); |
fce4730c SH |
7075 | return OFPERR_OFPGMFC_BUCKET_EXISTS; |
7076 | } | |
7077 | ||
7078 | /* Rearrange list according to command_bucket_id */ | |
7079 | if (command_bucket_id == OFPG15_BUCKET_LAST) { | |
417e7e66 | 7080 | if (!ovs_list_is_empty(&ofgroup->buckets)) { |
8e19e655 BP |
7081 | struct ofputil_bucket *new_first; |
7082 | const struct ofputil_bucket *first; | |
fce4730c | 7083 | |
8e19e655 BP |
7084 | first = ofputil_bucket_list_front(&ofgroup->buckets); |
7085 | new_first = ofputil_bucket_find(&new_ofgroup->buckets, | |
7086 | first->bucket_id); | |
fce4730c | 7087 | |
417e7e66 | 7088 | ovs_list_splice(new_ofgroup->buckets.next, &new_first->list_node, |
db88b35c JR |
7089 | CONST_CAST(struct ovs_list *, |
7090 | &new_ofgroup->buckets)); | |
8e19e655 | 7091 | } |
fce4730c SH |
7092 | } else if (command_bucket_id <= OFPG15_BUCKET_MAX && last) { |
7093 | struct ofputil_bucket *after; | |
7094 | ||
7095 | /* Presence of bucket is checked above so after should never be NULL */ | |
7096 | after = ofputil_bucket_find(&new_ofgroup->buckets, command_bucket_id); | |
7097 | ||
417e7e66 | 7098 | ovs_list_splice(after->list_node.next, new_ofgroup->buckets.next, |
fce4730c SH |
7099 | last->list_node.next); |
7100 | } | |
7101 | ||
7102 | return 0; | |
7103 | } | |
7104 | ||
7105 | /* Appends all of the a copy of all the buckets from 'ofgroup' to 'new_ofgroup' | |
7106 | * with the exception of the bucket whose bucket id is 'command_bucket_id'. | |
7107 | * Special 'command_bucket_id' values OFPG15_BUCKET_FIRST, OFPG15_BUCKET_LAST | |
7108 | * and OFPG15_BUCKET_ALL are also honored. */ | |
7109 | static enum ofperr | |
7110 | copy_buckets_for_remove_bucket(const struct ofgroup *ofgroup, | |
7111 | struct ofgroup *new_ofgroup, | |
7112 | uint32_t command_bucket_id) | |
7113 | { | |
7114 | const struct ofputil_bucket *skip = NULL; | |
7115 | ||
7116 | if (command_bucket_id == OFPG15_BUCKET_ALL) { | |
7117 | return 0; | |
7118 | } | |
7119 | ||
7120 | if (command_bucket_id == OFPG15_BUCKET_FIRST) { | |
417e7e66 | 7121 | if (!ovs_list_is_empty(&ofgroup->buckets)) { |
fce4730c SH |
7122 | skip = ofputil_bucket_list_front(&ofgroup->buckets); |
7123 | } | |
7124 | } else if (command_bucket_id == OFPG15_BUCKET_LAST) { | |
417e7e66 | 7125 | if (!ovs_list_is_empty(&ofgroup->buckets)) { |
fce4730c SH |
7126 | skip = ofputil_bucket_list_back(&ofgroup->buckets); |
7127 | } | |
7128 | } else { | |
7129 | skip = ofputil_bucket_find(&ofgroup->buckets, command_bucket_id); | |
7130 | if (!skip) { | |
7131 | return OFPERR_OFPGMFC_UNKNOWN_BUCKET; | |
7132 | } | |
7133 | } | |
7134 | ||
db88b35c JR |
7135 | ofputil_bucket_clone_list(CONST_CAST(struct ovs_list *, |
7136 | &new_ofgroup->buckets), | |
7137 | &ofgroup->buckets, skip); | |
fce4730c SH |
7138 | |
7139 | return 0; | |
7140 | } | |
7141 | ||
7142 | /* Implements OFPGC11_MODIFY, OFPGC15_INSERT_BUCKET and | |
7143 | * OFPGC15_REMOVE_BUCKET. Returns 0 on success or an OpenFlow error code | |
6c5b90ce | 7144 | * on failure. |
7395c052 | 7145 | * |
809c7548 RW |
7146 | * Note that the group is re-created and then replaces the old group in |
7147 | * ofproto's ofgroup hash map. Thus, the group is never altered while users of | |
6c5b90ce | 7148 | * the xlate module hold a pointer to the group. */ |
7395c052 | 7149 | static enum ofperr |
2b0b0b80 | 7150 | modify_group_start(struct ofproto *ofproto, struct ofproto_group_mod *ogm) |
cc099268 | 7151 | OVS_REQUIRES(ofproto_mutex) |
7395c052 | 7152 | { |
2b0b0b80 JR |
7153 | struct ofgroup *old_group; /* Modified group. */ |
7154 | struct ofgroup *new_group; | |
7395c052 NZ |
7155 | enum ofperr error; |
7156 | ||
5d08a275 JR |
7157 | old_group = ofproto_group_lookup__(ofproto, ogm->gm.group_id, |
7158 | OVS_VERSION_MAX); | |
2b0b0b80 JR |
7159 | if (!old_group) { |
7160 | return OFPERR_OFPGMFC_UNKNOWN_GROUP; | |
7395c052 NZ |
7161 | } |
7162 | ||
836476ce BP |
7163 | /* Inserting or deleting a bucket should not change the group's type or |
7164 | * properties, so change the group mod so that these aspects match the old | |
7165 | * group. (See EXT-570.) */ | |
7166 | if (ogm->gm.command == OFPGC15_INSERT_BUCKET || | |
7167 | ogm->gm.command == OFPGC15_REMOVE_BUCKET) { | |
7168 | ogm->gm.type = old_group->type; | |
7169 | ofputil_group_properties_destroy(&ogm->gm.props); | |
7170 | ofputil_group_properties_copy(&ogm->gm.props, &old_group->props); | |
7171 | } | |
7172 | ||
2b0b0b80 JR |
7173 | if (old_group->type != ogm->gm.type |
7174 | && (ofproto->n_groups[ogm->gm.type] | |
7175 | >= ofproto->ogf.max_groups[ogm->gm.type])) { | |
7176 | return OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
7395c052 | 7177 | } |
809c7548 | 7178 | |
5d08a275 | 7179 | error = init_group(ofproto, &ogm->gm, ogm->version, &ogm->new_group); |
2b0b0b80 JR |
7180 | if (error) { |
7181 | return error; | |
7395c052 | 7182 | } |
2b0b0b80 | 7183 | new_group = ogm->new_group; |
7395c052 | 7184 | |
fce4730c | 7185 | /* Manipulate bucket list for bucket commands */ |
2b0b0b80 JR |
7186 | if (ogm->gm.command == OFPGC15_INSERT_BUCKET) { |
7187 | error = copy_buckets_for_insert_bucket(old_group, new_group, | |
7188 | ogm->gm.command_bucket_id); | |
7189 | } else if (ogm->gm.command == OFPGC15_REMOVE_BUCKET) { | |
7190 | error = copy_buckets_for_remove_bucket(old_group, new_group, | |
7191 | ogm->gm.command_bucket_id); | |
fce4730c SH |
7192 | } |
7193 | if (error) { | |
7194 | goto out; | |
7195 | } | |
7196 | ||
809c7548 | 7197 | /* The group creation time does not change during modification. */ |
2b0b0b80 JR |
7198 | *CONST_CAST(long long int *, &(new_group->created)) = old_group->created; |
7199 | *CONST_CAST(long long int *, &(new_group->modified)) = time_msec(); | |
7395c052 | 7200 | |
2b0b0b80 | 7201 | group_collection_add(&ogm->old_groups, old_group); |
db88b35c | 7202 | |
5d08a275 JR |
7203 | /* Mark the old group for deletion. */ |
7204 | versions_set_remove_version(&old_group->versions, ogm->version); | |
7205 | /* Insert replacement group. */ | |
7206 | cmap_insert(&ofproto->groups, &new_group->cmap_node, | |
7207 | hash_int(new_group->group_id, 0)); | |
cc099268 | 7208 | /* Transfer rules. */ |
2b0b0b80 | 7209 | rule_collection_move(&new_group->rules, &old_group->rules); |
db88b35c | 7210 | |
2b0b0b80 JR |
7211 | if (old_group->type != new_group->type) { |
7212 | ofproto->n_groups[old_group->type]--; | |
7213 | ofproto->n_groups[new_group->type]++; | |
7395c052 | 7214 | } |
2b0b0b80 | 7215 | return 0; |
7395c052 | 7216 | |
809c7548 | 7217 | out: |
2b0b0b80 | 7218 | ofproto_group_unref(new_group); |
7395c052 NZ |
7219 | return error; |
7220 | } | |
7221 | ||
88b87a36 JS |
7222 | /* Implements the OFPGC11_ADD_OR_MOD command which creates the group when it does not |
7223 | * exist yet and modifies it otherwise */ | |
7224 | static enum ofperr | |
2b0b0b80 JR |
7225 | add_or_modify_group_start(struct ofproto *ofproto, |
7226 | struct ofproto_group_mod *ogm) | |
cc099268 | 7227 | OVS_REQUIRES(ofproto_mutex) |
88b87a36 | 7228 | { |
88b87a36 | 7229 | enum ofperr error; |
88b87a36 | 7230 | |
2b0b0b80 JR |
7231 | if (!ofproto_group_exists(ofproto, ogm->gm.group_id)) { |
7232 | error = add_group_start(ofproto, ogm); | |
88b87a36 | 7233 | } else { |
2b0b0b80 | 7234 | error = modify_group_start(ofproto, ogm); |
88b87a36 | 7235 | } |
cc099268 | 7236 | |
88b87a36 JS |
7237 | return error; |
7238 | } | |
7239 | ||
7395c052 | 7240 | static void |
5d08a275 JR |
7241 | delete_group_start(struct ofproto *ofproto, ovs_version_t version, |
7242 | struct group_collection *groups, struct ofgroup *group) | |
cc099268 | 7243 | OVS_REQUIRES(ofproto_mutex) |
7395c052 | 7244 | { |
2b0b0b80 | 7245 | /* Makes flow deletion code leave the rule pointers in 'group->rules' |
cc099268 JR |
7246 | * intact, so that we can later refer to the rules deleted due to the group |
7247 | * deletion. Rule pointers will be removed from all other groups, if any, | |
7248 | * so we will never try to delete the same rule twice. */ | |
2b0b0b80 JR |
7249 | group->being_deleted = true; |
7250 | ||
7251 | /* Mark all the referring groups for deletion. */ | |
5d08a275 | 7252 | delete_flows_start__(ofproto, version, &group->rules); |
2b0b0b80 | 7253 | group_collection_add(groups, group); |
5d08a275 | 7254 | versions_set_remove_version(&group->versions, version); |
2b0b0b80 JR |
7255 | ofproto->n_groups[group->type]--; |
7256 | } | |
276f6518 | 7257 | |
2b0b0b80 JR |
7258 | static void |
7259 | delete_group_finish(struct ofproto *ofproto, struct ofgroup *group) | |
7260 | OVS_REQUIRES(ofproto_mutex) | |
7261 | { | |
7262 | /* Finish deletion of all flow entries containing this group in a group | |
7263 | * action. */ | |
7264 | delete_flows_finish__(ofproto, &group->rules, OFPRR_GROUP_DELETE, NULL); | |
276f6518 | 7265 | |
5d08a275 | 7266 | /* Group removal is postponed by the caller. */ |
7395c052 NZ |
7267 | } |
7268 | ||
6c5b90ce | 7269 | /* Implements OFPGC11_DELETE. */ |
7395c052 | 7270 | static void |
2b0b0b80 | 7271 | delete_groups_start(struct ofproto *ofproto, struct ofproto_group_mod *ogm) |
cc099268 | 7272 | OVS_REQUIRES(ofproto_mutex) |
7395c052 | 7273 | { |
2b0b0b80 | 7274 | struct ofgroup *group; |
7395c052 | 7275 | |
2b0b0b80 JR |
7276 | if (ogm->gm.group_id == OFPG_ALL) { |
7277 | CMAP_FOR_EACH (group, cmap_node, &ofproto->groups) { | |
5d08a275 JR |
7278 | if (versions_visible_in_version(&group->versions, ogm->version)) { |
7279 | delete_group_start(ofproto, ogm->version, &ogm->old_groups, | |
7280 | group); | |
7281 | } | |
7395c052 NZ |
7282 | } |
7283 | } else { | |
5d08a275 JR |
7284 | group = ofproto_group_lookup__(ofproto, ogm->gm.group_id, ogm->version); |
7285 | if (group) { | |
7286 | delete_group_start(ofproto, ogm->version, &ogm->old_groups, group); | |
7395c052 NZ |
7287 | } |
7288 | } | |
7395c052 NZ |
7289 | } |
7290 | ||
7291 | static enum ofperr | |
2b0b0b80 JR |
7292 | ofproto_group_mod_start(struct ofproto *ofproto, struct ofproto_group_mod *ogm) |
7293 | OVS_REQUIRES(ofproto_mutex) | |
7395c052 | 7294 | { |
7395c052 NZ |
7295 | enum ofperr error; |
7296 | ||
2b0b0b80 JR |
7297 | ogm->new_group = NULL; |
7298 | group_collection_init(&ogm->old_groups); | |
7395c052 | 7299 | |
2b0b0b80 | 7300 | switch (ogm->gm.command) { |
7395c052 | 7301 | case OFPGC11_ADD: |
2b0b0b80 | 7302 | error = add_group_start(ofproto, ogm); |
3c35db62 | 7303 | break; |
7395c052 NZ |
7304 | |
7305 | case OFPGC11_MODIFY: | |
2b0b0b80 | 7306 | error = modify_group_start(ofproto, ogm); |
3c35db62 | 7307 | break; |
7395c052 | 7308 | |
88b87a36 | 7309 | case OFPGC11_ADD_OR_MOD: |
2b0b0b80 | 7310 | error = add_or_modify_group_start(ofproto, ogm); |
88b87a36 JS |
7311 | break; |
7312 | ||
7395c052 | 7313 | case OFPGC11_DELETE: |
2b0b0b80 | 7314 | delete_groups_start(ofproto, ogm); |
3c35db62 NR |
7315 | error = 0; |
7316 | break; | |
7395c052 | 7317 | |
fce4730c | 7318 | case OFPGC15_INSERT_BUCKET: |
2b0b0b80 | 7319 | error = modify_group_start(ofproto, ogm); |
3c35db62 | 7320 | break; |
fce4730c SH |
7321 | |
7322 | case OFPGC15_REMOVE_BUCKET: | |
2b0b0b80 | 7323 | error = modify_group_start(ofproto, ogm); |
3c35db62 | 7324 | break; |
fce4730c | 7325 | |
7395c052 | 7326 | default: |
2b0b0b80 | 7327 | if (ogm->gm.command > OFPGC11_DELETE) { |
d2873d53 | 7328 | VLOG_INFO_RL(&rl, "%s: Invalid group_mod command type %d", |
2b0b0b80 | 7329 | ofproto->name, ogm->gm.command); |
7395c052 | 7330 | } |
63eded98 | 7331 | error = OFPERR_OFPGMFC_BAD_COMMAND; |
2b0b0b80 | 7332 | break; |
7395c052 | 7333 | } |
2b0b0b80 JR |
7334 | return error; |
7335 | } | |
3c35db62 | 7336 | |
25070e04 JR |
7337 | static void |
7338 | ofproto_group_mod_revert(struct ofproto *ofproto, | |
7339 | struct ofproto_group_mod *ogm) | |
7340 | OVS_REQUIRES(ofproto_mutex) | |
7341 | { | |
7342 | struct ofgroup *new_group = ogm->new_group; | |
7343 | struct ofgroup *old_group; | |
7344 | ||
7345 | /* Restore replaced or deleted groups. */ | |
7346 | GROUP_COLLECTION_FOR_EACH (old_group, &ogm->old_groups) { | |
7347 | ofproto->n_groups[old_group->type]++; | |
7348 | if (new_group) { | |
7349 | ovs_assert(group_collection_n(&ogm->old_groups) == 1); | |
7350 | /* Transfer rules back. */ | |
7351 | rule_collection_move(&old_group->rules, &new_group->rules); | |
7352 | } else { | |
7353 | old_group->being_deleted = false; | |
7354 | /* Revert rule deletion. */ | |
7355 | delete_flows_revert__(ofproto, &old_group->rules); | |
7356 | } | |
7357 | /* Restore visibility. */ | |
7358 | versions_set_remove_version(&old_group->versions, | |
7359 | OVS_VERSION_NOT_REMOVED); | |
7360 | } | |
7361 | if (new_group) { | |
7362 | /* Remove the new group immediately. It was never visible to | |
7363 | * lookups. */ | |
7364 | cmap_remove(&ofproto->groups, &new_group->cmap_node, | |
7365 | hash_int(new_group->group_id, 0)); | |
7366 | ofproto->n_groups[new_group->type]--; | |
7367 | ofproto_group_unref(new_group); | |
7368 | } | |
7369 | } | |
7370 | ||
2b0b0b80 JR |
7371 | static void |
7372 | ofproto_group_mod_finish(struct ofproto *ofproto, | |
7373 | struct ofproto_group_mod *ogm, | |
7374 | const struct openflow_mod_requester *req) | |
7375 | OVS_REQUIRES(ofproto_mutex) | |
7376 | { | |
7377 | struct ofgroup *new_group = ogm->new_group; | |
7378 | struct ofgroup *old_group; | |
7379 | ||
ccb3bc08 JR |
7380 | if (new_group && group_collection_n(&ogm->old_groups) && |
7381 | ofproto->ofproto_class->group_modify) { | |
2b0b0b80 JR |
7382 | /* Modify a group. */ |
7383 | ovs_assert(group_collection_n(&ogm->old_groups) == 1); | |
2b0b0b80 JR |
7384 | |
7385 | /* XXX: OK to lose old group's stats? */ | |
7386 | ofproto->ofproto_class->group_modify(new_group); | |
5d08a275 | 7387 | } |
2b0b0b80 | 7388 | |
5d08a275 JR |
7389 | /* Delete old groups. */ |
7390 | GROUP_COLLECTION_FOR_EACH(old_group, &ogm->old_groups) { | |
7391 | delete_group_finish(ofproto, old_group); | |
2b0b0b80 | 7392 | } |
5d08a275 | 7393 | remove_groups_postponed(&ogm->old_groups); |
2b0b0b80 JR |
7394 | |
7395 | if (req) { | |
f836888d BP |
7396 | struct ofputil_requestforward rf = { |
7397 | .xid = req->request->xid, | |
7398 | .reason = OFPRFR_GROUP_MOD, | |
7399 | .group_mod = &ogm->gm, | |
7400 | .new_buckets = new_group ? &new_group->buckets : NULL, | |
7401 | .group_existed = group_collection_n(&ogm->old_groups) > 0, | |
7402 | }; | |
2b0b0b80 JR |
7403 | connmgr_send_requestforward(ofproto->connmgr, req->ofconn, &rf); |
7404 | } | |
7405 | } | |
7406 | ||
7407 | /* Delete all groups from 'ofproto'. | |
7408 | * | |
7409 | * This is intended for use within an ofproto provider's 'destruct' | |
7410 | * function. */ | |
d3b84833 BP |
7411 | static void |
7412 | ofproto_group_delete_all__(struct ofproto *ofproto) | |
7413 | OVS_REQUIRES(ofproto_mutex) | |
2b0b0b80 JR |
7414 | { |
7415 | struct ofproto_group_mod ogm; | |
2b0b0b80 JR |
7416 | ogm.gm.command = OFPGC11_DELETE; |
7417 | ogm.gm.group_id = OFPG_ALL; | |
5d08a275 | 7418 | ogm.version = ofproto->tables_version + 1; |
d3b84833 | 7419 | |
2b0b0b80 | 7420 | ofproto_group_mod_start(ofproto, &ogm); |
5d08a275 | 7421 | ofproto_bump_tables_version(ofproto); |
2b0b0b80 | 7422 | ofproto_group_mod_finish(ofproto, &ogm, NULL); |
d3b84833 BP |
7423 | } |
7424 | ||
7425 | /* Delete all groups from 'ofproto'. | |
7426 | * | |
7427 | * This is intended for use within an ofproto provider's 'destruct' | |
7428 | * function. */ | |
7429 | void | |
7430 | ofproto_group_delete_all(struct ofproto *ofproto) | |
7431 | OVS_EXCLUDED(ofproto_mutex) | |
7432 | { | |
7433 | ovs_mutex_lock(&ofproto_mutex); | |
7434 | ofproto_group_delete_all__(ofproto); | |
2b0b0b80 JR |
7435 | ovs_mutex_unlock(&ofproto_mutex); |
7436 | } | |
7437 | ||
7438 | static enum ofperr | |
7439 | handle_group_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
7440 | OVS_EXCLUDED(ofproto_mutex) | |
7441 | { | |
7442 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
7443 | struct ofproto_group_mod ogm; | |
7444 | enum ofperr error; | |
7445 | ||
7446 | error = reject_slave_controller(ofconn); | |
7447 | if (error) { | |
7448 | return error; | |
7449 | } | |
7450 | ||
7451 | error = ofputil_decode_group_mod(oh, &ogm.gm); | |
7452 | if (error) { | |
7453 | return error; | |
3c35db62 | 7454 | } |
2b0b0b80 JR |
7455 | |
7456 | ovs_mutex_lock(&ofproto_mutex); | |
5d08a275 | 7457 | ogm.version = ofproto->tables_version + 1; |
2b0b0b80 JR |
7458 | error = ofproto_group_mod_start(ofproto, &ogm); |
7459 | if (!error) { | |
7460 | struct openflow_mod_requester req = { ofconn, oh }; | |
5d08a275 JR |
7461 | |
7462 | ofproto_bump_tables_version(ofproto); | |
2b0b0b80 | 7463 | ofproto_group_mod_finish(ofproto, &ogm, &req); |
2c7ee524 | 7464 | ofmonitor_flush(ofproto->connmgr); |
2b0b0b80 | 7465 | } |
2b0b0b80 JR |
7466 | ovs_mutex_unlock(&ofproto_mutex); |
7467 | ||
75868d0e | 7468 | ofputil_uninit_group_mod(&ogm.gm); |
63eded98 | 7469 | |
3c35db62 | 7470 | return error; |
7395c052 NZ |
7471 | } |
7472 | ||
3c1bb396 BP |
7473 | enum ofputil_table_miss |
7474 | ofproto_table_get_miss_config(const struct ofproto *ofproto, uint8_t table_id) | |
6d328fa2 | 7475 | { |
82c22d34 BP |
7476 | enum ofputil_table_miss miss; |
7477 | ||
7478 | atomic_read_relaxed(&ofproto->tables[table_id].miss_config, &miss); | |
7479 | return miss; | |
7480 | } | |
7481 | ||
7482 | static void | |
7483 | table_mod__(struct oftable *oftable, | |
de7d3c07 | 7484 | const struct ofputil_table_mod *tm) |
82c22d34 | 7485 | { |
de7d3c07 | 7486 | if (tm->miss == OFPUTIL_TABLE_MISS_DEFAULT) { |
82c22d34 BP |
7487 | /* This is how an OFPT_TABLE_MOD decodes if it doesn't specify any |
7488 | * table-miss configuration (because the protocol used doesn't have | |
7489 | * such a concept), so there's nothing to do. */ | |
7490 | } else { | |
de7d3c07 | 7491 | atomic_store_relaxed(&oftable->miss_config, tm->miss); |
82c22d34 BP |
7492 | } |
7493 | ||
7494 | unsigned int new_eviction = oftable->eviction; | |
de7d3c07 | 7495 | if (tm->eviction == OFPUTIL_TABLE_EVICTION_ON) { |
82c22d34 | 7496 | new_eviction |= EVICTION_OPENFLOW; |
de7d3c07 | 7497 | } else if (tm->eviction == OFPUTIL_TABLE_EVICTION_OFF) { |
82c22d34 BP |
7498 | new_eviction &= ~EVICTION_OPENFLOW; |
7499 | } | |
afcea9ea | 7500 | |
82c22d34 BP |
7501 | if (new_eviction != oftable->eviction) { |
7502 | ovs_mutex_lock(&ofproto_mutex); | |
7503 | oftable_configure_eviction(oftable, new_eviction, | |
7504 | oftable->eviction_fields, | |
7505 | oftable->n_eviction_fields); | |
7506 | ovs_mutex_unlock(&ofproto_mutex); | |
7507 | } | |
de7d3c07 SJ |
7508 | |
7509 | if (tm->vacancy != OFPUTIL_TABLE_VACANCY_DEFAULT) { | |
7510 | ovs_mutex_lock(&ofproto_mutex); | |
de7d3c07 SJ |
7511 | oftable->vacancy_down = tm->table_vacancy.vacancy_down; |
7512 | oftable->vacancy_up = tm->table_vacancy.vacancy_up; | |
6c6eedc5 SJ |
7513 | if (tm->vacancy == OFPUTIL_TABLE_VACANCY_OFF) { |
7514 | oftable->vacancy_event = 0; | |
7515 | } else if (!oftable->vacancy_event) { | |
7516 | uint8_t vacancy = oftable_vacancy(oftable); | |
7517 | oftable->vacancy_event = (vacancy < oftable->vacancy_up | |
7518 | ? OFPTR_VACANCY_UP | |
7519 | : OFPTR_VACANCY_DOWN); | |
7520 | } | |
de7d3c07 SJ |
7521 | ovs_mutex_unlock(&ofproto_mutex); |
7522 | } | |
6d328fa2 SH |
7523 | } |
7524 | ||
67761761 SH |
7525 | static enum ofperr |
7526 | table_mod(struct ofproto *ofproto, const struct ofputil_table_mod *tm) | |
7527 | { | |
3c1bb396 | 7528 | if (!check_table_id(ofproto, tm->table_id)) { |
67761761 | 7529 | return OFPERR_OFPTMFC_BAD_TABLE; |
82c22d34 BP |
7530 | } |
7531 | ||
7532 | /* Don't allow the eviction flags to be changed (except to the only fixed | |
7533 | * value that OVS supports). OF1.4 says this is normal: "The | |
7534 | * OFPTMPT_EVICTION property usually cannot be modified using a | |
7535 | * OFP_TABLE_MOD request, because the eviction mechanism is switch | |
7536 | * defined". */ | |
7537 | if (tm->eviction_flags != UINT32_MAX | |
7538 | && tm->eviction_flags != OFPROTO_EVICTION_FLAGS) { | |
7539 | return OFPERR_OFPTMFC_BAD_CONFIG; | |
7540 | } | |
7541 | ||
7542 | if (tm->table_id == OFPTT_ALL) { | |
7543 | struct oftable *oftable; | |
7544 | OFPROTO_FOR_EACH_TABLE (oftable, ofproto) { | |
7545 | if (!(oftable->flags & (OFTABLE_HIDDEN | OFTABLE_READONLY))) { | |
de7d3c07 | 7546 | table_mod__(oftable, tm); |
3c1bb396 | 7547 | } |
3c1bb396 | 7548 | } |
82c22d34 BP |
7549 | } else { |
7550 | struct oftable *oftable = &ofproto->tables[tm->table_id]; | |
7551 | if (oftable->flags & OFTABLE_READONLY) { | |
7552 | return OFPERR_OFPTMFC_EPERM; | |
7553 | } | |
de7d3c07 | 7554 | table_mod__(oftable, tm); |
67761761 | 7555 | } |
82c22d34 | 7556 | |
67761761 SH |
7557 | return 0; |
7558 | } | |
7559 | ||
918f2b82 AZ |
7560 | static enum ofperr |
7561 | handle_table_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
7562 | { | |
67761761 | 7563 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
918f2b82 AZ |
7564 | struct ofputil_table_mod tm; |
7565 | enum ofperr error; | |
7566 | ||
7567 | error = reject_slave_controller(ofconn); | |
7568 | if (error) { | |
7569 | return error; | |
7570 | } | |
7571 | ||
7572 | error = ofputil_decode_table_mod(oh, &tm); | |
7573 | if (error) { | |
7574 | return error; | |
7575 | } | |
7576 | ||
67761761 | 7577 | return table_mod(ofproto, &tm); |
918f2b82 AZ |
7578 | } |
7579 | ||
5bacd5cd JR |
7580 | /* Free resources that may be allocated by ofproto_flow_mod_init(). */ |
7581 | void | |
7582 | ofproto_flow_mod_uninit(struct ofproto_flow_mod *ofm) | |
7583 | { | |
7584 | if (ofm->temp_rule) { | |
7585 | ofproto_rule_unref(ofm->temp_rule); | |
7586 | ofm->temp_rule = NULL; | |
7587 | } | |
7588 | if (ofm->criteria.version != OVS_VERSION_NOT_REMOVED) { | |
7589 | rule_criteria_destroy(&ofm->criteria); | |
7590 | } | |
7591 | if (ofm->conjs) { | |
7592 | free(ofm->conjs); | |
7593 | ofm->conjs = NULL; | |
7594 | ofm->n_conjs = 0; | |
7595 | } | |
7596 | } | |
7597 | ||
6399df6a BP |
7598 | /* Initializes 'ofm' with 'ofproto', 'fm', and 'rule'. 'rule' may be null, but |
7599 | * if it is nonnull then the caller must own a reference to it, which on | |
7600 | * success is transferred to 'ofm' and on failure is unreffed. */ | |
777af88d | 7601 | static enum ofperr |
5bacd5cd | 7602 | ofproto_flow_mod_init(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
2c7ee524 | 7603 | const struct ofputil_flow_mod *fm, struct rule *rule) |
5bacd5cd | 7604 | OVS_EXCLUDED(ofproto_mutex) |
777af88d | 7605 | { |
5bacd5cd JR |
7606 | enum ofperr error; |
7607 | ||
7608 | /* Forward flow mod fields we need later. */ | |
7609 | ofm->command = fm->command; | |
5bacd5cd JR |
7610 | ofm->modify_cookie = fm->modify_cookie; |
7611 | ||
7612 | ofm->modify_may_add_flow = (fm->new_cookie != OVS_BE64_MAX | |
7613 | && fm->cookie_mask == htonll(0)); | |
8b6987d7 JR |
7614 | /* Old flags must be kept when modifying a flow, but we still must |
7615 | * honor the reset counts flag if present in the flow mod. */ | |
7616 | ofm->modify_keep_counts = !(fm->flags & OFPUTIL_FF_RESET_COUNTS); | |
5bacd5cd JR |
7617 | |
7618 | /* Initialize state needed by ofproto_flow_mod_uninit(). */ | |
2c7ee524 | 7619 | ofm->temp_rule = rule; |
5bacd5cd JR |
7620 | ofm->criteria.version = OVS_VERSION_NOT_REMOVED; |
7621 | ofm->conjs = NULL; | |
7622 | ofm->n_conjs = 0; | |
7623 | ||
c184807c JR |
7624 | bool check_buffer_id = false; |
7625 | ||
5bacd5cd JR |
7626 | switch (ofm->command) { |
7627 | case OFPFC_ADD: | |
c184807c | 7628 | check_buffer_id = true; |
5bacd5cd JR |
7629 | error = add_flow_init(ofproto, ofm, fm); |
7630 | break; | |
7631 | case OFPFC_MODIFY: | |
c184807c | 7632 | check_buffer_id = true; |
5bacd5cd JR |
7633 | error = modify_flows_init_loose(ofproto, ofm, fm); |
7634 | break; | |
7635 | case OFPFC_MODIFY_STRICT: | |
c184807c | 7636 | check_buffer_id = true; |
5bacd5cd JR |
7637 | error = modify_flow_init_strict(ofproto, ofm, fm); |
7638 | break; | |
7639 | case OFPFC_DELETE: | |
7640 | error = delete_flows_init_loose(ofproto, ofm, fm); | |
7641 | break; | |
7642 | case OFPFC_DELETE_STRICT: | |
7643 | error = delete_flows_init_strict(ofproto, ofm, fm); | |
7644 | break; | |
7645 | default: | |
7646 | error = OFPERR_OFPFMFC_BAD_COMMAND; | |
7647 | break; | |
7648 | } | |
c184807c JR |
7649 | if (!error && check_buffer_id && fm->buffer_id != UINT32_MAX) { |
7650 | error = OFPERR_OFPBRC_BUFFER_UNKNOWN; | |
7651 | } | |
7652 | ||
cc099268 | 7653 | if (error) { |
5bacd5cd | 7654 | ofproto_flow_mod_uninit(ofm); |
cc099268 | 7655 | } |
5bacd5cd JR |
7656 | return error; |
7657 | } | |
cc099268 | 7658 | |
5bacd5cd JR |
7659 | static enum ofperr |
7660 | ofproto_flow_mod_start(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) | |
7661 | OVS_REQUIRES(ofproto_mutex) | |
7662 | { | |
7663 | enum ofperr error; | |
81dee635 | 7664 | |
5bacd5cd JR |
7665 | rule_collection_init(&ofm->old_rules); |
7666 | rule_collection_init(&ofm->new_rules); | |
81dee635 | 7667 | |
5a27991d | 7668 | switch (ofm->command) { |
1f42be1c | 7669 | case OFPFC_ADD: |
5bacd5cd JR |
7670 | error = add_flow_start(ofproto, ofm); |
7671 | break; | |
1f42be1c | 7672 | case OFPFC_MODIFY: |
5bacd5cd JR |
7673 | error = modify_flows_start_loose(ofproto, ofm); |
7674 | break; | |
1f42be1c | 7675 | case OFPFC_MODIFY_STRICT: |
5bacd5cd JR |
7676 | error = modify_flow_start_strict(ofproto, ofm); |
7677 | break; | |
1f42be1c | 7678 | case OFPFC_DELETE: |
5bacd5cd JR |
7679 | error = delete_flows_start_loose(ofproto, ofm); |
7680 | break; | |
1f42be1c | 7681 | case OFPFC_DELETE_STRICT: |
5bacd5cd JR |
7682 | error = delete_flow_start_strict(ofproto, ofm); |
7683 | break; | |
7684 | default: | |
7685 | OVS_NOT_REACHED(); | |
1f42be1c | 7686 | } |
5bacd5cd JR |
7687 | /* Release resources not needed after start. */ |
7688 | ofproto_flow_mod_uninit(ofm); | |
1f42be1c | 7689 | |
5bacd5cd JR |
7690 | if (error) { |
7691 | rule_collection_destroy(&ofm->old_rules); | |
7692 | rule_collection_destroy(&ofm->new_rules); | |
7693 | } | |
7694 | return error; | |
1f42be1c JR |
7695 | } |
7696 | ||
7697 | static void | |
8be00367 | 7698 | ofproto_flow_mod_revert(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
1f42be1c JR |
7699 | OVS_REQUIRES(ofproto_mutex) |
7700 | { | |
5a27991d | 7701 | switch (ofm->command) { |
1f42be1c | 7702 | case OFPFC_ADD: |
8be00367 | 7703 | add_flow_revert(ofproto, ofm); |
1f42be1c JR |
7704 | break; |
7705 | ||
7706 | case OFPFC_MODIFY: | |
7707 | case OFPFC_MODIFY_STRICT: | |
8be00367 | 7708 | modify_flows_revert(ofproto, ofm); |
1f42be1c JR |
7709 | break; |
7710 | ||
7711 | case OFPFC_DELETE: | |
7712 | case OFPFC_DELETE_STRICT: | |
8be00367 | 7713 | delete_flows_revert(ofproto, ofm); |
1f42be1c JR |
7714 | break; |
7715 | ||
7716 | default: | |
7717 | break; | |
7718 | } | |
2c7ee524 | 7719 | |
5bacd5cd JR |
7720 | rule_collection_destroy(&ofm->old_rules); |
7721 | rule_collection_destroy(&ofm->new_rules); | |
1f42be1c JR |
7722 | } |
7723 | ||
7724 | static void | |
2c7ee524 | 7725 | ofproto_flow_mod_finish(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
0a0d9385 | 7726 | const struct openflow_mod_requester *req) |
1f42be1c JR |
7727 | OVS_REQUIRES(ofproto_mutex) |
7728 | { | |
5a27991d | 7729 | switch (ofm->command) { |
1f42be1c | 7730 | case OFPFC_ADD: |
8be00367 | 7731 | add_flow_finish(ofproto, ofm, req); |
1f42be1c JR |
7732 | break; |
7733 | ||
7734 | case OFPFC_MODIFY: | |
7735 | case OFPFC_MODIFY_STRICT: | |
8be00367 | 7736 | modify_flows_finish(ofproto, ofm, req); |
1f42be1c JR |
7737 | break; |
7738 | ||
7739 | case OFPFC_DELETE: | |
7740 | case OFPFC_DELETE_STRICT: | |
8be00367 | 7741 | delete_flows_finish(ofproto, ofm, req); |
1f42be1c JR |
7742 | break; |
7743 | ||
7744 | default: | |
7745 | break; | |
7746 | } | |
b0d38b2f | 7747 | |
5bacd5cd JR |
7748 | rule_collection_destroy(&ofm->old_rules); |
7749 | rule_collection_destroy(&ofm->new_rules); | |
7750 | ||
b0d38b2f | 7751 | if (req) { |
5a27991d | 7752 | ofconn_report_flow_mod(req->ofconn, ofm->command); |
b0d38b2f | 7753 | } |
1f42be1c JR |
7754 | } |
7755 | ||
39c94593 JR |
7756 | /* Commit phases (all while locking ofproto_mutex): |
7757 | * | |
7758 | * 1. Begin: Gather resources and make changes visible in the next version. | |
7759 | * - Mark affected rules for removal in the next version. | |
7760 | * - Create new replacement rules, make visible in the next | |
7761 | * version. | |
7762 | * - Do not send any events or notifications. | |
7763 | * | |
7764 | * 2. Revert: Fail if any errors are found. After this point no errors are | |
7765 | * possible. No visible changes were made, so rollback is minimal (remove | |
7766 | * added invisible rules, restore visibility of rules marked for removal). | |
7767 | * | |
1c38055d JR |
7768 | * 3. Finish: Make the changes visible for lookups. Insert replacement rules to |
7769 | * the ofproto provider. Remove replaced and deleted rules from ofproto data | |
7770 | * structures, and Schedule postponed removal of deleted rules from the | |
7771 | * classifier. Send notifications, buffered packets, etc. | |
39c94593 | 7772 | */ |
1f42be1c JR |
7773 | static enum ofperr |
7774 | do_bundle_commit(struct ofconn *ofconn, uint32_t id, uint16_t flags) | |
7775 | { | |
7776 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
44e0c35d | 7777 | ovs_version_t version = ofproto->tables_version + 1; |
1f42be1c JR |
7778 | struct ofp_bundle *bundle; |
7779 | struct ofp_bundle_entry *be; | |
777af88d | 7780 | enum ofperr error; |
1f42be1c JR |
7781 | |
7782 | bundle = ofconn_get_bundle(ofconn, id); | |
7783 | ||
7784 | if (!bundle) { | |
7785 | return OFPERR_OFPBFC_BAD_ID; | |
7786 | } | |
7787 | if (bundle->flags != flags) { | |
7788 | error = OFPERR_OFPBFC_BAD_FLAGS; | |
7789 | } else { | |
1c38055d JR |
7790 | bool prev_is_port_mod = false; |
7791 | ||
1f42be1c JR |
7792 | error = 0; |
7793 | ovs_mutex_lock(&ofproto_mutex); | |
39c94593 JR |
7794 | |
7795 | /* 1. Begin. */ | |
1f42be1c JR |
7796 | LIST_FOR_EACH (be, node, &bundle->msg_list) { |
7797 | if (be->type == OFPTYPE_PORT_MOD) { | |
1c38055d JR |
7798 | /* Our port mods are not atomic. */ |
7799 | if (flags & OFPBF_ATOMIC) { | |
7800 | error = OFPERR_OFPBFC_MSG_FAILED; | |
7801 | } else { | |
7802 | prev_is_port_mod = true; | |
8be00367 | 7803 | error = port_mod_start(ofconn, &be->opm.pm, &be->opm.port); |
1c38055d | 7804 | } |
25070e04 JR |
7805 | } else { |
7806 | /* Flow & group mods between port mods are applied as a single | |
7807 | * version, but the versions are published only after we know | |
7808 | * the commit is successful. */ | |
1c38055d | 7809 | if (prev_is_port_mod) { |
25070e04 | 7810 | prev_is_port_mod = false; |
8be00367 | 7811 | ++version; |
1c38055d | 7812 | } |
25070e04 JR |
7813 | if (be->type == OFPTYPE_FLOW_MOD) { |
7814 | /* Store the version in which the changes should take | |
7815 | * effect. */ | |
7816 | be->ofm.version = version; | |
7817 | error = ofproto_flow_mod_start(ofproto, &be->ofm); | |
7818 | } else if (be->type == OFPTYPE_GROUP_MOD) { | |
7819 | /* Store the version in which the changes should take | |
7820 | * effect. */ | |
7821 | be->ogm.version = version; | |
7822 | error = ofproto_group_mod_start(ofproto, &be->ogm); | |
6dd3c787 JR |
7823 | } else if (be->type == OFPTYPE_PACKET_OUT) { |
7824 | be->opo.version = version; | |
7825 | error = ofproto_packet_out_start(ofproto, &be->opo); | |
25070e04 JR |
7826 | } else { |
7827 | OVS_NOT_REACHED(); | |
7828 | } | |
1f42be1c JR |
7829 | } |
7830 | if (error) { | |
7831 | break; | |
7832 | } | |
7833 | } | |
1c38055d | 7834 | |
1f42be1c JR |
7835 | if (error) { |
7836 | /* Send error referring to the original message. */ | |
7837 | if (error) { | |
52c57cbb | 7838 | ofconn_send_error(ofconn, be->msg, error); |
1f42be1c JR |
7839 | error = OFPERR_OFPBFC_MSG_FAILED; |
7840 | } | |
7841 | ||
39c94593 | 7842 | /* 2. Revert. Undo all the changes made above. */ |
1f42be1c JR |
7843 | LIST_FOR_EACH_REVERSE_CONTINUE(be, node, &bundle->msg_list) { |
7844 | if (be->type == OFPTYPE_FLOW_MOD) { | |
8be00367 | 7845 | ofproto_flow_mod_revert(ofproto, &be->ofm); |
25070e04 JR |
7846 | } else if (be->type == OFPTYPE_GROUP_MOD) { |
7847 | ofproto_group_mod_revert(ofproto, &be->ogm); | |
6dd3c787 JR |
7848 | } else if (be->type == OFPTYPE_PACKET_OUT) { |
7849 | ofproto_packet_out_revert(ofproto, &be->opo); | |
1f42be1c | 7850 | } |
1c38055d | 7851 | /* Nothing needs to be reverted for a port mod. */ |
1f42be1c JR |
7852 | } |
7853 | } else { | |
39c94593 | 7854 | /* 4. Finish. */ |
1f42be1c | 7855 | LIST_FOR_EACH (be, node, &bundle->msg_list) { |
25070e04 | 7856 | if (be->type == OFPTYPE_PORT_MOD) { |
1c38055d JR |
7857 | /* Perform the actual port mod. This is not atomic, i.e., |
7858 | * the effects will be immediately seen by upcall | |
7859 | * processing regardless of the lookup version. It should | |
7860 | * be noted that port configuration changes can originate | |
7861 | * also from OVSDB changes asynchronously to all upcall | |
7862 | * processing. */ | |
8be00367 | 7863 | port_mod_finish(ofconn, &be->opm.pm, be->opm.port); |
25070e04 | 7864 | } else { |
6dd3c787 JR |
7865 | version = |
7866 | (be->type == OFPTYPE_FLOW_MOD) ? be->ofm.version : | |
7867 | (be->type == OFPTYPE_GROUP_MOD) ? be->ogm.version : | |
7868 | (be->type == OFPTYPE_PACKET_OUT) ? be->opo.version : | |
7869 | version; | |
7870 | ||
7871 | /* Bump the lookup version to the one of the current | |
7872 | * message. This makes all the changes in the bundle at | |
7873 | * this version visible to lookups at once. */ | |
7874 | if (ofproto->tables_version < version) { | |
7875 | ofproto->tables_version = version; | |
7876 | ofproto->ofproto_class->set_tables_version( | |
7877 | ofproto, ofproto->tables_version); | |
7878 | } | |
7879 | ||
52c57cbb | 7880 | struct openflow_mod_requester req = { ofconn, be->msg }; |
25070e04 | 7881 | |
6dd3c787 | 7882 | if (be->type == OFPTYPE_FLOW_MOD) { |
25070e04 JR |
7883 | ofproto_flow_mod_finish(ofproto, &be->ofm, &req); |
7884 | } else if (be->type == OFPTYPE_GROUP_MOD) { | |
25070e04 | 7885 | ofproto_group_mod_finish(ofproto, &be->ogm, &req); |
6dd3c787 JR |
7886 | } else if (be->type == OFPTYPE_PACKET_OUT) { |
7887 | ofproto_packet_out_finish(ofproto, &be->opo); | |
25070e04 | 7888 | } |
1f42be1c JR |
7889 | } |
7890 | } | |
7891 | } | |
1c38055d | 7892 | |
1f42be1c JR |
7893 | ofmonitor_flush(ofproto->connmgr); |
7894 | ovs_mutex_unlock(&ofproto_mutex); | |
1f42be1c JR |
7895 | } |
7896 | ||
7897 | /* The bundle is discarded regardless the outcome. */ | |
0c78eebe | 7898 | ofp_bundle_remove__(ofconn, bundle); |
1f42be1c JR |
7899 | return error; |
7900 | } | |
7901 | ||
7902 | static enum ofperr | |
7903 | handle_bundle_control(struct ofconn *ofconn, const struct ofp_header *oh) | |
7904 | { | |
777af88d | 7905 | struct ofputil_bundle_ctrl_msg bctrl; |
777af88d | 7906 | struct ofputil_bundle_ctrl_msg reply; |
1f42be1c JR |
7907 | struct ofpbuf *buf; |
7908 | enum ofperr error; | |
777af88d | 7909 | |
ba9d374a JR |
7910 | error = reject_slave_controller(ofconn); |
7911 | if (error) { | |
7912 | return error; | |
7913 | } | |
7914 | ||
777af88d AC |
7915 | error = ofputil_decode_bundle_ctrl(oh, &bctrl); |
7916 | if (error) { | |
7917 | return error; | |
7918 | } | |
7919 | reply.flags = 0; | |
7920 | reply.bundle_id = bctrl.bundle_id; | |
7921 | ||
7922 | switch (bctrl.type) { | |
51bb26fa JR |
7923 | case OFPBCT_OPEN_REQUEST: |
7924 | error = ofp_bundle_open(ofconn, bctrl.bundle_id, bctrl.flags, oh); | |
777af88d AC |
7925 | reply.type = OFPBCT_OPEN_REPLY; |
7926 | break; | |
7927 | case OFPBCT_CLOSE_REQUEST: | |
7928 | error = ofp_bundle_close(ofconn, bctrl.bundle_id, bctrl.flags); | |
ea53e3a8 | 7929 | reply.type = OFPBCT_CLOSE_REPLY; |
777af88d AC |
7930 | break; |
7931 | case OFPBCT_COMMIT_REQUEST: | |
1f42be1c | 7932 | error = do_bundle_commit(ofconn, bctrl.bundle_id, bctrl.flags); |
777af88d AC |
7933 | reply.type = OFPBCT_COMMIT_REPLY; |
7934 | break; | |
7935 | case OFPBCT_DISCARD_REQUEST: | |
7936 | error = ofp_bundle_discard(ofconn, bctrl.bundle_id); | |
7937 | reply.type = OFPBCT_DISCARD_REPLY; | |
7938 | break; | |
7939 | ||
7940 | case OFPBCT_OPEN_REPLY: | |
7941 | case OFPBCT_CLOSE_REPLY: | |
7942 | case OFPBCT_COMMIT_REPLY: | |
7943 | case OFPBCT_DISCARD_REPLY: | |
7944 | return OFPERR_OFPBFC_BAD_TYPE; | |
7945 | break; | |
7946 | } | |
7947 | ||
7948 | if (!error) { | |
7949 | buf = ofputil_encode_bundle_ctrl_reply(oh, &reply); | |
7950 | ofconn_send_reply(ofconn, buf); | |
7951 | } | |
7952 | return error; | |
7953 | } | |
7954 | ||
777af88d AC |
7955 | static enum ofperr |
7956 | handle_bundle_add(struct ofconn *ofconn, const struct ofp_header *oh) | |
5bacd5cd | 7957 | OVS_EXCLUDED(ofproto_mutex) |
777af88d | 7958 | { |
7ac27a04 | 7959 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
777af88d AC |
7960 | enum ofperr error; |
7961 | struct ofputil_bundle_add_msg badd; | |
7ac27a04 | 7962 | enum ofptype type; |
777af88d | 7963 | |
ba9d374a JR |
7964 | error = reject_slave_controller(ofconn); |
7965 | if (error) { | |
7966 | return error; | |
7967 | } | |
7968 | ||
7ac27a04 | 7969 | error = ofputil_decode_bundle_add(oh, &badd, &type); |
777af88d AC |
7970 | if (error) { |
7971 | return error; | |
7972 | } | |
7973 | ||
d0485f48 AT |
7974 | /* Allocate bundle entry and decode the embedded message. */ |
7975 | struct ofp_bundle_entry *bmsg = xmalloc(sizeof *bmsg); | |
7ac27a04 | 7976 | |
6dd3c787 JR |
7977 | struct ofpbuf ofpacts; |
7978 | uint64_t ofpacts_stub[1024 / 8]; | |
7979 | ofpbuf_use_stub(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); | |
7980 | ||
7ac27a04 | 7981 | if (type == OFPTYPE_PORT_MOD) { |
8be00367 | 7982 | error = ofputil_decode_port_mod(badd.msg, &bmsg->opm.pm, false); |
7ac27a04 | 7983 | } else if (type == OFPTYPE_FLOW_MOD) { |
5bacd5cd | 7984 | struct ofputil_flow_mod fm; |
7ac27a04 | 7985 | |
5bacd5cd | 7986 | error = ofputil_decode_flow_mod(&fm, badd.msg, |
7ac27a04 | 7987 | ofconn_get_protocol(ofconn), |
8d8ab6c2 | 7988 | ofproto_get_tun_tab(ofproto), |
04f48a68 | 7989 | &ofproto->vl_mff_map, &ofpacts, |
7ac27a04 JR |
7990 | u16_to_ofp(ofproto->max_ports), |
7991 | ofproto->n_tables); | |
5bacd5cd | 7992 | if (!error) { |
2c7ee524 | 7993 | error = ofproto_flow_mod_init(ofproto, &bmsg->ofm, &fm, NULL); |
6a6b7060 | 7994 | minimatch_destroy(&fm.match); |
5bacd5cd | 7995 | } |
25070e04 JR |
7996 | } else if (type == OFPTYPE_GROUP_MOD) { |
7997 | error = ofputil_decode_group_mod(badd.msg, &bmsg->ogm.gm); | |
6dd3c787 JR |
7998 | } else if (type == OFPTYPE_PACKET_OUT) { |
7999 | struct ofputil_packet_out po; | |
8000 | ||
8001 | COVERAGE_INC(ofproto_packet_out); | |
8002 | ||
8003 | /* Decode message. */ | |
89d7927b YHW |
8004 | error = ofputil_decode_packet_out(&po, badd.msg, |
8005 | ofproto_get_tun_tab(ofproto), | |
8006 | &ofpacts); | |
6dd3c787 JR |
8007 | if (!error) { |
8008 | po.ofpacts = ofpbuf_steal_data(&ofpacts); /* Move to heap. */ | |
8009 | error = ofproto_packet_out_init(ofproto, ofconn, &bmsg->opo, &po); | |
8010 | } | |
7ac27a04 JR |
8011 | } else { |
8012 | OVS_NOT_REACHED(); | |
8013 | } | |
6dd3c787 | 8014 | ofpbuf_uninit(&ofpacts); |
d0485f48 AT |
8015 | if (error) { |
8016 | free(bmsg); | |
8017 | return error; | |
7ac27a04 JR |
8018 | } |
8019 | ||
d0485f48 AT |
8020 | /* Now that the embedded message has been successfully decoded, finish up |
8021 | * initializing the bundle entry. */ | |
8022 | bmsg->type = type; | |
8023 | bmsg->msg = xmemdup(oh, ntohs(oh->length)); | |
8024 | ||
8025 | /* Add bundle entry to bundle. */ | |
8026 | error = ofp_bundle_add_message(ofconn, badd.bundle_id, badd.flags, | |
8027 | bmsg, oh); | |
7ac27a04 JR |
8028 | if (error) { |
8029 | ofp_bundle_entry_free(bmsg); | |
8030 | } | |
7ac27a04 | 8031 | return error; |
777af88d AC |
8032 | } |
8033 | ||
6159c531 | 8034 | static enum ofperr |
4e548ad9 | 8035 | handle_tlv_table_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
6159c531 | 8036 | { |
8d8ab6c2 JG |
8037 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
8038 | struct tun_table *old_tab, *new_tab; | |
4e548ad9 | 8039 | struct ofputil_tlv_table_mod ttm; |
6159c531 JG |
8040 | enum ofperr error; |
8041 | ||
8042 | error = reject_slave_controller(ofconn); | |
8043 | if (error) { | |
8044 | return error; | |
8045 | } | |
8046 | ||
4e548ad9 | 8047 | error = ofputil_decode_tlv_table_mod(oh, &ttm); |
6159c531 JG |
8048 | if (error) { |
8049 | return error; | |
8050 | } | |
8051 | ||
8d8ab6c2 JG |
8052 | old_tab = ovsrcu_get_protected(struct tun_table *, &ofproto->metadata_tab); |
8053 | error = tun_metadata_table_mod(&ttm, old_tab, &new_tab); | |
8054 | if (!error) { | |
04f48a68 YHW |
8055 | ovs_mutex_lock(&ofproto->vl_mff_map.mutex); |
8056 | error = mf_vl_mff_map_mod_from_tun_metadata(&ofproto->vl_mff_map, | |
8057 | &ttm); | |
8058 | ovs_mutex_unlock(&ofproto->vl_mff_map.mutex); | |
5c7c16d8 YHW |
8059 | if (!error) { |
8060 | ovsrcu_set(&ofproto->metadata_tab, new_tab); | |
8061 | tun_metadata_postpone_free(old_tab); | |
bc36c3a8 YHW |
8062 | } else { |
8063 | tun_metadata_free(new_tab); | |
5c7c16d8 | 8064 | } |
8d8ab6c2 | 8065 | } |
9558d2a5 | 8066 | |
4e548ad9 | 8067 | ofputil_uninit_tlv_table(&ttm.mappings); |
9558d2a5 | 8068 | return error; |
6159c531 JG |
8069 | } |
8070 | ||
8071 | static enum ofperr | |
4e548ad9 | 8072 | handle_tlv_table_request(struct ofconn *ofconn, const struct ofp_header *oh) |
6159c531 | 8073 | { |
8d8ab6c2 | 8074 | const struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
4e548ad9 | 8075 | struct ofputil_tlv_table_reply ttr; |
9558d2a5 JG |
8076 | struct ofpbuf *b; |
8077 | ||
8d8ab6c2 JG |
8078 | tun_metadata_table_request(ofproto_get_tun_tab(ofproto), &ttr); |
8079 | ||
4e548ad9 ML |
8080 | b = ofputil_encode_tlv_table_reply(oh, &ttr); |
8081 | ofputil_uninit_tlv_table(&ttr.mappings); | |
9558d2a5 JG |
8082 | |
8083 | ofconn_send_reply(ofconn, b); | |
8084 | return 0; | |
6159c531 JG |
8085 | } |
8086 | ||
90bf1e07 | 8087 | static enum ofperr |
d1e2cf21 | 8088 | handle_openflow__(struct ofconn *ofconn, const struct ofpbuf *msg) |
15aaf599 | 8089 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 8090 | { |
6fd6ed71 | 8091 | const struct ofp_header *oh = msg->data; |
982697a4 | 8092 | enum ofptype type; |
90bf1e07 | 8093 | enum ofperr error; |
064af421 | 8094 | |
982697a4 | 8095 | error = ofptype_decode(&type, oh); |
d1e2cf21 BP |
8096 | if (error) { |
8097 | return error; | |
8098 | } | |
ff3c2c63 YT |
8099 | if (oh->version >= OFP13_VERSION && ofpmsg_is_stat_request(oh) |
8100 | && ofpmp_more(oh)) { | |
8101 | /* We have no buffer implementation for multipart requests. | |
8102 | * Report overflow for requests which consists of multiple | |
8103 | * messages. */ | |
8104 | return OFPERR_OFPBRC_MULTIPART_BUFFER_OVERFLOW; | |
8105 | } | |
064af421 | 8106 | |
982697a4 | 8107 | switch (type) { |
d1e2cf21 | 8108 | /* OpenFlow requests. */ |
982697a4 | 8109 | case OFPTYPE_ECHO_REQUEST: |
d1e2cf21 | 8110 | return handle_echo_request(ofconn, oh); |
064af421 | 8111 | |
982697a4 | 8112 | case OFPTYPE_FEATURES_REQUEST: |
d1e2cf21 | 8113 | return handle_features_request(ofconn, oh); |
064af421 | 8114 | |
982697a4 | 8115 | case OFPTYPE_GET_CONFIG_REQUEST: |
d1e2cf21 | 8116 | return handle_get_config_request(ofconn, oh); |
064af421 | 8117 | |
982697a4 BP |
8118 | case OFPTYPE_SET_CONFIG: |
8119 | return handle_set_config(ofconn, oh); | |
064af421 | 8120 | |
982697a4 BP |
8121 | case OFPTYPE_PACKET_OUT: |
8122 | return handle_packet_out(ofconn, oh); | |
064af421 | 8123 | |
982697a4 | 8124 | case OFPTYPE_PORT_MOD: |
d1e2cf21 | 8125 | return handle_port_mod(ofconn, oh); |
064af421 | 8126 | |
982697a4 | 8127 | case OFPTYPE_FLOW_MOD: |
2e4f5fcf | 8128 | return handle_flow_mod(ofconn, oh); |
064af421 | 8129 | |
7395c052 NZ |
8130 | case OFPTYPE_GROUP_MOD: |
8131 | return handle_group_mod(ofconn, oh); | |
8132 | ||
918f2b82 AZ |
8133 | case OFPTYPE_TABLE_MOD: |
8134 | return handle_table_mod(ofconn, oh); | |
8135 | ||
9cae45dc JR |
8136 | case OFPTYPE_METER_MOD: |
8137 | return handle_meter_mod(ofconn, oh); | |
8138 | ||
982697a4 | 8139 | case OFPTYPE_BARRIER_REQUEST: |
d1e2cf21 | 8140 | return handle_barrier_request(ofconn, oh); |
064af421 | 8141 | |
6ea4776b JR |
8142 | case OFPTYPE_ROLE_REQUEST: |
8143 | return handle_role_request(ofconn, oh); | |
8144 | ||
d1e2cf21 | 8145 | /* OpenFlow replies. */ |
982697a4 | 8146 | case OFPTYPE_ECHO_REPLY: |
d1e2cf21 | 8147 | return 0; |
246e61ea | 8148 | |
d1e2cf21 | 8149 | /* Nicira extension requests. */ |
982697a4 | 8150 | case OFPTYPE_FLOW_MOD_TABLE_ID: |
6c1491fb | 8151 | return handle_nxt_flow_mod_table_id(ofconn, oh); |
d1e2cf21 | 8152 | |
982697a4 | 8153 | case OFPTYPE_SET_FLOW_FORMAT: |
d1e2cf21 BP |
8154 | return handle_nxt_set_flow_format(ofconn, oh); |
8155 | ||
982697a4 | 8156 | case OFPTYPE_SET_PACKET_IN_FORMAT: |
54834960 EJ |
8157 | return handle_nxt_set_packet_in_format(ofconn, oh); |
8158 | ||
982697a4 | 8159 | case OFPTYPE_SET_CONTROLLER_ID: |
a7349929 BP |
8160 | return handle_nxt_set_controller_id(ofconn, oh); |
8161 | ||
982697a4 | 8162 | case OFPTYPE_FLOW_AGE: |
f27f2134 BP |
8163 | /* Nothing to do. */ |
8164 | return 0; | |
8165 | ||
982697a4 | 8166 | case OFPTYPE_FLOW_MONITOR_CANCEL: |
2b07c8b1 BP |
8167 | return handle_flow_monitor_cancel(ofconn, oh); |
8168 | ||
982697a4 | 8169 | case OFPTYPE_SET_ASYNC_CONFIG: |
80d5aefd BP |
8170 | return handle_nxt_set_async_config(ofconn, oh); |
8171 | ||
c423b3b3 AC |
8172 | case OFPTYPE_GET_ASYNC_REQUEST: |
8173 | return handle_nxt_get_async_request(ofconn, oh); | |
8174 | ||
77ab5fd2 BP |
8175 | case OFPTYPE_NXT_RESUME: |
8176 | return handle_nxt_resume(ofconn, oh); | |
8177 | ||
349adfb2 | 8178 | /* Statistics requests. */ |
982697a4 BP |
8179 | case OFPTYPE_DESC_STATS_REQUEST: |
8180 | return handle_desc_stats_request(ofconn, oh); | |
8181 | ||
8182 | case OFPTYPE_FLOW_STATS_REQUEST: | |
8183 | return handle_flow_stats_request(ofconn, oh); | |
8184 | ||
8185 | case OFPTYPE_AGGREGATE_STATS_REQUEST: | |
8186 | return handle_aggregate_stats_request(ofconn, oh); | |
8187 | ||
8188 | case OFPTYPE_TABLE_STATS_REQUEST: | |
8189 | return handle_table_stats_request(ofconn, oh); | |
8190 | ||
3c4e10fb BP |
8191 | case OFPTYPE_TABLE_FEATURES_STATS_REQUEST: |
8192 | return handle_table_features_request(ofconn, oh); | |
8193 | ||
03c72922 BP |
8194 | case OFPTYPE_TABLE_DESC_REQUEST: |
8195 | return handle_table_desc_request(ofconn, oh); | |
8196 | ||
982697a4 BP |
8197 | case OFPTYPE_PORT_STATS_REQUEST: |
8198 | return handle_port_stats_request(ofconn, oh); | |
8199 | ||
8200 | case OFPTYPE_QUEUE_STATS_REQUEST: | |
8201 | return handle_queue_stats_request(ofconn, oh); | |
8202 | ||
8203 | case OFPTYPE_PORT_DESC_STATS_REQUEST: | |
8204 | return handle_port_desc_stats_request(ofconn, oh); | |
8205 | ||
8206 | case OFPTYPE_FLOW_MONITOR_STATS_REQUEST: | |
8207 | return handle_flow_monitor_request(ofconn, oh); | |
8208 | ||
261bd854 BP |
8209 | case OFPTYPE_METER_STATS_REQUEST: |
8210 | case OFPTYPE_METER_CONFIG_STATS_REQUEST: | |
9cae45dc JR |
8211 | return handle_meter_request(ofconn, oh, type); |
8212 | ||
261bd854 | 8213 | case OFPTYPE_METER_FEATURES_STATS_REQUEST: |
9cae45dc JR |
8214 | return handle_meter_features_request(ofconn, oh); |
8215 | ||
261bd854 | 8216 | case OFPTYPE_GROUP_STATS_REQUEST: |
7395c052 NZ |
8217 | return handle_group_stats_request(ofconn, oh); |
8218 | ||
261bd854 | 8219 | case OFPTYPE_GROUP_DESC_STATS_REQUEST: |
7395c052 NZ |
8220 | return handle_group_desc_stats_request(ofconn, oh); |
8221 | ||
261bd854 | 8222 | case OFPTYPE_GROUP_FEATURES_STATS_REQUEST: |
7395c052 NZ |
8223 | return handle_group_features_stats_request(ofconn, oh); |
8224 | ||
7395c052 | 8225 | case OFPTYPE_QUEUE_GET_CONFIG_REQUEST: |
e8f9a7bb | 8226 | return handle_queue_get_config_request(ofconn, oh); |
2e1ae200 | 8227 | |
777af88d AC |
8228 | case OFPTYPE_BUNDLE_CONTROL: |
8229 | return handle_bundle_control(ofconn, oh); | |
8230 | ||
8231 | case OFPTYPE_BUNDLE_ADD_MESSAGE: | |
8232 | return handle_bundle_add(ofconn, oh); | |
8233 | ||
4e548ad9 ML |
8234 | case OFPTYPE_NXT_TLV_TABLE_MOD: |
8235 | return handle_tlv_table_mod(ofconn, oh); | |
6159c531 | 8236 | |
4e548ad9 ML |
8237 | case OFPTYPE_NXT_TLV_TABLE_REQUEST: |
8238 | return handle_tlv_table_request(ofconn, oh); | |
6159c531 | 8239 | |
fb8f22c1 BY |
8240 | case OFPTYPE_IPFIX_BRIDGE_STATS_REQUEST: |
8241 | return handle_ipfix_bridge_stats_request(ofconn, oh); | |
8242 | ||
8243 | case OFPTYPE_IPFIX_FLOW_STATS_REQUEST: | |
8244 | return handle_ipfix_flow_stats_request(ofconn, oh); | |
8245 | ||
2a7c4805 JP |
8246 | case OFPTYPE_CT_FLUSH_ZONE: |
8247 | return handle_nxt_ct_flush_zone(ofconn, oh); | |
8248 | ||
982697a4 BP |
8249 | case OFPTYPE_HELLO: |
8250 | case OFPTYPE_ERROR: | |
8251 | case OFPTYPE_FEATURES_REPLY: | |
8252 | case OFPTYPE_GET_CONFIG_REPLY: | |
8253 | case OFPTYPE_PACKET_IN: | |
8254 | case OFPTYPE_FLOW_REMOVED: | |
8255 | case OFPTYPE_PORT_STATUS: | |
8256 | case OFPTYPE_BARRIER_REPLY: | |
c545d38d | 8257 | case OFPTYPE_QUEUE_GET_CONFIG_REPLY: |
982697a4 BP |
8258 | case OFPTYPE_DESC_STATS_REPLY: |
8259 | case OFPTYPE_FLOW_STATS_REPLY: | |
8260 | case OFPTYPE_QUEUE_STATS_REPLY: | |
8261 | case OFPTYPE_PORT_STATS_REPLY: | |
8262 | case OFPTYPE_TABLE_STATS_REPLY: | |
8263 | case OFPTYPE_AGGREGATE_STATS_REPLY: | |
8264 | case OFPTYPE_PORT_DESC_STATS_REPLY: | |
8265 | case OFPTYPE_ROLE_REPLY: | |
8266 | case OFPTYPE_FLOW_MONITOR_PAUSED: | |
8267 | case OFPTYPE_FLOW_MONITOR_RESUMED: | |
8268 | case OFPTYPE_FLOW_MONITOR_STATS_REPLY: | |
2e1ae200 | 8269 | case OFPTYPE_GET_ASYNC_REPLY: |
261bd854 BP |
8270 | case OFPTYPE_GROUP_STATS_REPLY: |
8271 | case OFPTYPE_GROUP_DESC_STATS_REPLY: | |
8272 | case OFPTYPE_GROUP_FEATURES_STATS_REPLY: | |
8273 | case OFPTYPE_METER_STATS_REPLY: | |
8274 | case OFPTYPE_METER_CONFIG_STATS_REPLY: | |
8275 | case OFPTYPE_METER_FEATURES_STATS_REPLY: | |
8276 | case OFPTYPE_TABLE_FEATURES_STATS_REPLY: | |
03c72922 | 8277 | case OFPTYPE_TABLE_DESC_REPLY: |
252f3411 | 8278 | case OFPTYPE_ROLE_STATUS: |
3c35db62 | 8279 | case OFPTYPE_REQUESTFORWARD: |
6c6eedc5 | 8280 | case OFPTYPE_TABLE_STATUS: |
4e548ad9 | 8281 | case OFPTYPE_NXT_TLV_TABLE_REPLY: |
fb8f22c1 BY |
8282 | case OFPTYPE_IPFIX_BRIDGE_STATS_REPLY: |
8283 | case OFPTYPE_IPFIX_FLOW_STATS_REPLY: | |
064af421 | 8284 | default: |
76ec08e0 YT |
8285 | if (ofpmsg_is_stat_request(oh)) { |
8286 | return OFPERR_OFPBRC_BAD_STAT; | |
8287 | } else { | |
8288 | return OFPERR_OFPBRC_BAD_TYPE; | |
8289 | } | |
064af421 | 8290 | } |
d1e2cf21 | 8291 | } |
064af421 | 8292 | |
b20f4073 | 8293 | static void |
e03248b7 | 8294 | handle_openflow(struct ofconn *ofconn, const struct ofpbuf *ofp_msg) |
15aaf599 | 8295 | OVS_EXCLUDED(ofproto_mutex) |
d1e2cf21 | 8296 | { |
d51c8b71 JR |
8297 | enum ofperr error = handle_openflow__(ofconn, ofp_msg); |
8298 | ||
b20f4073 | 8299 | if (error) { |
6fd6ed71 | 8300 | ofconn_send_error(ofconn, ofp_msg->data, error); |
064af421 | 8301 | } |
d1e2cf21 | 8302 | COVERAGE_INC(ofproto_recv_openflow); |
7ee20df1 BP |
8303 | } |
8304 | \f | |
064af421 | 8305 | static uint64_t |
fa60c019 | 8306 | pick_datapath_id(const struct ofproto *ofproto) |
064af421 | 8307 | { |
fa60c019 | 8308 | const struct ofport *port; |
064af421 | 8309 | |
abe529af | 8310 | port = ofproto_get_port(ofproto, OFPP_LOCAL); |
fa60c019 | 8311 | if (port) { |
74ff3298 | 8312 | struct eth_addr ea; |
fa60c019 BP |
8313 | int error; |
8314 | ||
74ff3298 | 8315 | error = netdev_get_etheraddr(port->netdev, &ea); |
064af421 BP |
8316 | if (!error) { |
8317 | return eth_addr_to_uint64(ea); | |
8318 | } | |
fbfa2911 BP |
8319 | VLOG_WARN("%s: could not get MAC address for %s (%s)", |
8320 | ofproto->name, netdev_get_name(port->netdev), | |
10a89ef0 | 8321 | ovs_strerror(error)); |
064af421 | 8322 | } |
fa60c019 | 8323 | return ofproto->fallback_dpid; |
064af421 BP |
8324 | } |
8325 | ||
8326 | static uint64_t | |
8327 | pick_fallback_dpid(void) | |
8328 | { | |
74ff3298 JR |
8329 | struct eth_addr ea; |
8330 | eth_addr_nicira_random(&ea); | |
064af421 BP |
8331 | return eth_addr_to_uint64(ea); |
8332 | } | |
8333 | \f | |
254750ce BP |
8334 | /* Table overflow policy. */ |
8335 | ||
ad3efdcb EJ |
8336 | /* Chooses and updates 'rulep' with a rule to evict from 'table'. Sets 'rulep' |
8337 | * to NULL if the table is not configured to evict rules or if the table | |
8338 | * contains no evictable rules. (Rules with a readlock on their evict rwlock, | |
8339 | * or with no timeouts are not evictable.) */ | |
8340 | static bool | |
8341 | choose_rule_to_evict(struct oftable *table, struct rule **rulep) | |
15aaf599 | 8342 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
8343 | { |
8344 | struct eviction_group *evg; | |
8345 | ||
ad3efdcb | 8346 | *rulep = NULL; |
82c22d34 | 8347 | if (!table->eviction) { |
ad3efdcb | 8348 | return false; |
254750ce BP |
8349 | } |
8350 | ||
8351 | /* In the common case, the outer and inner loops here will each be entered | |
8352 | * exactly once: | |
8353 | * | |
8354 | * - The inner loop normally "return"s in its first iteration. If the | |
8355 | * eviction group has any evictable rules, then it always returns in | |
8356 | * some iteration. | |
8357 | * | |
8358 | * - The outer loop only iterates more than once if the largest eviction | |
8359 | * group has no evictable rules. | |
8360 | * | |
8361 | * - The outer loop can exit only if table's 'max_flows' is all filled up | |
afe2143d | 8362 | * by unevictable rules. */ |
254750ce BP |
8363 | HEAP_FOR_EACH (evg, size_node, &table->eviction_groups_by_size) { |
8364 | struct rule *rule; | |
8365 | ||
8366 | HEAP_FOR_EACH (rule, evg_node, &evg->rules) { | |
15aaf599 BP |
8367 | *rulep = rule; |
8368 | return true; | |
254750ce BP |
8369 | } |
8370 | } | |
8371 | ||
ad3efdcb | 8372 | return false; |
254750ce | 8373 | } |
254750ce BP |
8374 | \f |
8375 | /* Eviction groups. */ | |
8376 | ||
8377 | /* Returns the priority to use for an eviction_group that contains 'n_rules' | |
8378 | * rules. The priority contains low-order random bits to ensure that eviction | |
8379 | * groups with the same number of rules are prioritized randomly. */ | |
8380 | static uint32_t | |
8381 | eviction_group_priority(size_t n_rules) | |
8382 | { | |
8383 | uint16_t size = MIN(UINT16_MAX, n_rules); | |
8384 | return (size << 16) | random_uint16(); | |
8385 | } | |
8386 | ||
8387 | /* Updates 'evg', an eviction_group within 'table', following a change that | |
8388 | * adds or removes rules in 'evg'. */ | |
8389 | static void | |
8390 | eviction_group_resized(struct oftable *table, struct eviction_group *evg) | |
15aaf599 | 8391 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
8392 | { |
8393 | heap_change(&table->eviction_groups_by_size, &evg->size_node, | |
8394 | eviction_group_priority(heap_count(&evg->rules))); | |
8395 | } | |
8396 | ||
8397 | /* Destroys 'evg', an eviction_group within 'table': | |
8398 | * | |
8399 | * - Removes all the rules, if any, from 'evg'. (It doesn't destroy the | |
8400 | * rules themselves, just removes them from the eviction group.) | |
8401 | * | |
8402 | * - Removes 'evg' from 'table'. | |
8403 | * | |
8404 | * - Frees 'evg'. */ | |
8405 | static void | |
8406 | eviction_group_destroy(struct oftable *table, struct eviction_group *evg) | |
15aaf599 | 8407 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
8408 | { |
8409 | while (!heap_is_empty(&evg->rules)) { | |
8410 | struct rule *rule; | |
8411 | ||
8412 | rule = CONTAINER_OF(heap_pop(&evg->rules), struct rule, evg_node); | |
8413 | rule->eviction_group = NULL; | |
8414 | } | |
8415 | hmap_remove(&table->eviction_groups_by_id, &evg->id_node); | |
8416 | heap_remove(&table->eviction_groups_by_size, &evg->size_node); | |
8417 | heap_destroy(&evg->rules); | |
8418 | free(evg); | |
8419 | } | |
8420 | ||
8421 | /* Removes 'rule' from its eviction group, if any. */ | |
8422 | static void | |
8423 | eviction_group_remove_rule(struct rule *rule) | |
15aaf599 | 8424 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
8425 | { |
8426 | if (rule->eviction_group) { | |
8427 | struct oftable *table = &rule->ofproto->tables[rule->table_id]; | |
8428 | struct eviction_group *evg = rule->eviction_group; | |
8429 | ||
8430 | rule->eviction_group = NULL; | |
8431 | heap_remove(&evg->rules, &rule->evg_node); | |
8432 | if (heap_is_empty(&evg->rules)) { | |
8433 | eviction_group_destroy(table, evg); | |
8434 | } else { | |
8435 | eviction_group_resized(table, evg); | |
8436 | } | |
8437 | } | |
8438 | } | |
8439 | ||
8440 | /* Hashes the 'rule''s values for the eviction_fields of 'rule''s table, and | |
8441 | * returns the hash value. */ | |
8442 | static uint32_t | |
8443 | eviction_group_hash_rule(struct rule *rule) | |
15aaf599 | 8444 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
8445 | { |
8446 | struct oftable *table = &rule->ofproto->tables[rule->table_id]; | |
8447 | const struct mf_subfield *sf; | |
5cb7a798 | 8448 | struct flow flow; |
254750ce BP |
8449 | uint32_t hash; |
8450 | ||
8451 | hash = table->eviction_group_id_basis; | |
8fd47924 | 8452 | miniflow_expand(rule->cr.match.flow, &flow); |
254750ce BP |
8453 | for (sf = table->eviction_fields; |
8454 | sf < &table->eviction_fields[table->n_eviction_fields]; | |
8455 | sf++) | |
8456 | { | |
aff49b8c | 8457 | if (mf_are_prereqs_ok(sf->field, &flow, NULL)) { |
254750ce BP |
8458 | union mf_value value; |
8459 | ||
5cb7a798 | 8460 | mf_get_value(sf->field, &flow, &value); |
254750ce BP |
8461 | if (sf->ofs) { |
8462 | bitwise_zero(&value, sf->field->n_bytes, 0, sf->ofs); | |
8463 | } | |
8464 | if (sf->ofs + sf->n_bits < sf->field->n_bytes * 8) { | |
8465 | unsigned int start = sf->ofs + sf->n_bits; | |
8466 | bitwise_zero(&value, sf->field->n_bytes, start, | |
8467 | sf->field->n_bytes * 8 - start); | |
8468 | } | |
8469 | hash = hash_bytes(&value, sf->field->n_bytes, hash); | |
8470 | } else { | |
8471 | hash = hash_int(hash, 0); | |
8472 | } | |
8473 | } | |
8474 | ||
8475 | return hash; | |
8476 | } | |
8477 | ||
8478 | /* Returns an eviction group within 'table' with the given 'id', creating one | |
8479 | * if necessary. */ | |
8480 | static struct eviction_group * | |
8481 | eviction_group_find(struct oftable *table, uint32_t id) | |
15aaf599 | 8482 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
8483 | { |
8484 | struct eviction_group *evg; | |
8485 | ||
8486 | HMAP_FOR_EACH_WITH_HASH (evg, id_node, id, &table->eviction_groups_by_id) { | |
8487 | return evg; | |
8488 | } | |
8489 | ||
8490 | evg = xmalloc(sizeof *evg); | |
8491 | hmap_insert(&table->eviction_groups_by_id, &evg->id_node, id); | |
8492 | heap_insert(&table->eviction_groups_by_size, &evg->size_node, | |
8493 | eviction_group_priority(0)); | |
8494 | heap_init(&evg->rules); | |
8495 | ||
8496 | return evg; | |
8497 | } | |
8498 | ||
8499 | /* Returns an eviction priority for 'rule'. The return value should be | |
f70b94de BP |
8500 | * interpreted so that higher priorities make a rule a more attractive |
8501 | * candidate for eviction. */ | |
8502 | static uint64_t | |
dc437090 | 8503 | rule_eviction_priority(struct ofproto *ofproto, struct rule *rule) |
15aaf599 | 8504 | OVS_REQUIRES(ofproto_mutex) |
254750ce | 8505 | { |
f70b94de BP |
8506 | /* Calculate absolute time when this flow will expire. If it will never |
8507 | * expire, then return 0 to make it unevictable. */ | |
dc437090 | 8508 | long long int expiration = LLONG_MAX; |
dc437090 | 8509 | if (rule->hard_timeout) { |
f70b94de BP |
8510 | /* 'modified' needs protection even when we hold 'ofproto_mutex'. */ |
8511 | ovs_mutex_lock(&rule->mutex); | |
8512 | long long int modified = rule->modified; | |
8513 | ovs_mutex_unlock(&rule->mutex); | |
8514 | ||
dc437090 JR |
8515 | expiration = modified + rule->hard_timeout * 1000; |
8516 | } | |
8517 | if (rule->idle_timeout) { | |
8518 | uint64_t packets, bytes; | |
8519 | long long int used; | |
8520 | long long int idle_expiration; | |
8521 | ||
8522 | ofproto->ofproto_class->rule_get_stats(rule, &packets, &bytes, &used); | |
8523 | idle_expiration = used + rule->idle_timeout * 1000; | |
8524 | expiration = MIN(expiration, idle_expiration); | |
8525 | } | |
254750ce BP |
8526 | if (expiration == LLONG_MAX) { |
8527 | return 0; | |
8528 | } | |
8529 | ||
8530 | /* Calculate the time of expiration as a number of (approximate) seconds | |
8531 | * after program startup. | |
8532 | * | |
8533 | * This should work OK for program runs that last UINT32_MAX seconds or | |
8534 | * less. Therefore, please restart OVS at least once every 136 years. */ | |
f70b94de | 8535 | uint32_t expiration_ofs = (expiration >> 10) - (time_boot_msec() >> 10); |
254750ce | 8536 | |
f70b94de BP |
8537 | /* Combine expiration time with OpenFlow "importance" to form a single |
8538 | * priority value. We want flows with relatively low "importance" to be | |
8539 | * evicted before even considering expiration time, so put "importance" in | |
8540 | * the most significant bits and expiration time in the least significant | |
8541 | * bits. | |
8542 | * | |
8543 | * Small 'priority' should be evicted before those with large 'priority'. | |
8544 | * The caller expects the opposite convention (a large return value being | |
8545 | * more attractive for eviction) so we invert it before returning. */ | |
8546 | uint64_t priority = ((uint64_t) rule->importance << 32) + expiration_ofs; | |
8547 | return UINT64_MAX - priority; | |
254750ce BP |
8548 | } |
8549 | ||
8550 | /* Adds 'rule' to an appropriate eviction group for its oftable's | |
8551 | * configuration. Does nothing if 'rule''s oftable doesn't have eviction | |
8552 | * enabled, or if 'rule' is a permanent rule (one that will never expire on its | |
8553 | * own). | |
8554 | * | |
8555 | * The caller must ensure that 'rule' is not already in an eviction group. */ | |
8556 | static void | |
8557 | eviction_group_add_rule(struct rule *rule) | |
15aaf599 | 8558 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
8559 | { |
8560 | struct ofproto *ofproto = rule->ofproto; | |
8561 | struct oftable *table = &ofproto->tables[rule->table_id]; | |
a3779dbc | 8562 | bool has_timeout; |
254750ce | 8563 | |
dc437090 JR |
8564 | /* Timeouts may be modified only when holding 'ofproto_mutex'. We have it |
8565 | * so no additional protection is needed. */ | |
a3779dbc | 8566 | has_timeout = rule->hard_timeout || rule->idle_timeout; |
a3779dbc | 8567 | |
82c22d34 | 8568 | if (table->eviction && has_timeout) { |
254750ce BP |
8569 | struct eviction_group *evg; |
8570 | ||
8571 | evg = eviction_group_find(table, eviction_group_hash_rule(rule)); | |
8572 | ||
8573 | rule->eviction_group = evg; | |
8574 | heap_insert(&evg->rules, &rule->evg_node, | |
dc437090 | 8575 | rule_eviction_priority(ofproto, rule)); |
254750ce BP |
8576 | eviction_group_resized(table, evg); |
8577 | } | |
8578 | } | |
8579 | \f | |
d0918789 BP |
8580 | /* oftables. */ |
8581 | ||
8582 | /* Initializes 'table'. */ | |
8583 | static void | |
8584 | oftable_init(struct oftable *table) | |
8585 | { | |
5c67e4af | 8586 | memset(table, 0, sizeof *table); |
d70e8c28 | 8587 | classifier_init(&table->cls, flow_segment_u64s); |
ec1c5c7e | 8588 | table->max_flows = UINT_MAX; |
d79e3d70 | 8589 | table->n_flows = 0; |
82c22d34 BP |
8590 | hmap_init(&table->eviction_groups_by_id); |
8591 | heap_init(&table->eviction_groups_by_size); | |
3c1bb396 | 8592 | atomic_init(&table->miss_config, OFPUTIL_TABLE_MISS_DEFAULT); |
f017d986 | 8593 | |
f017d986 JR |
8594 | classifier_set_prefix_fields(&table->cls, default_prefix_fields, |
8595 | ARRAY_SIZE(default_prefix_fields)); | |
d611866c SH |
8596 | |
8597 | atomic_init(&table->n_matched, 0); | |
8598 | atomic_init(&table->n_missed, 0); | |
d0918789 BP |
8599 | } |
8600 | ||
254750ce | 8601 | /* Destroys 'table', including its classifier and eviction groups. |
d0918789 BP |
8602 | * |
8603 | * The caller is responsible for freeing 'table' itself. */ | |
8604 | static void | |
8605 | oftable_destroy(struct oftable *table) | |
8606 | { | |
cb22974d | 8607 | ovs_assert(classifier_is_empty(&table->cls)); |
82c22d34 | 8608 | |
7394b8fb | 8609 | ovs_mutex_lock(&ofproto_mutex); |
82c22d34 | 8610 | oftable_configure_eviction(table, 0, NULL, 0); |
7394b8fb | 8611 | ovs_mutex_unlock(&ofproto_mutex); |
82c22d34 BP |
8612 | |
8613 | hmap_destroy(&table->eviction_groups_by_id); | |
8614 | heap_destroy(&table->eviction_groups_by_size); | |
d0918789 | 8615 | classifier_destroy(&table->cls); |
254750ce BP |
8616 | free(table->name); |
8617 | } | |
8618 | ||
8619 | /* Changes the name of 'table' to 'name'. If 'name' is NULL or the empty | |
8620 | * string, then 'table' will use its default name. | |
8621 | * | |
8622 | * This only affects the name exposed for a table exposed through the OpenFlow | |
8623 | * OFPST_TABLE (as printed by "ovs-ofctl dump-tables"). */ | |
8624 | static void | |
8625 | oftable_set_name(struct oftable *table, const char *name) | |
8626 | { | |
8627 | if (name && name[0]) { | |
8628 | int len = strnlen(name, OFP_MAX_TABLE_NAME_LEN); | |
8629 | if (!table->name || strncmp(name, table->name, len)) { | |
8630 | free(table->name); | |
8631 | table->name = xmemdup0(name, len); | |
8632 | } | |
8633 | } else { | |
8634 | free(table->name); | |
8635 | table->name = NULL; | |
8636 | } | |
8637 | } | |
8638 | ||
254750ce BP |
8639 | /* oftables support a choice of two policies when adding a rule would cause the |
8640 | * number of flows in the table to exceed the configured maximum number: either | |
8641 | * they can refuse to add the new flow or they can evict some existing flow. | |
8642 | * This function configures the latter policy on 'table', with fairness based | |
8643 | * on the values of the 'n_fields' fields specified in 'fields'. (Specifying | |
8644 | * 'n_fields' as 0 disables fairness.) */ | |
8645 | static void | |
82c22d34 BP |
8646 | oftable_configure_eviction(struct oftable *table, unsigned int eviction, |
8647 | const struct mf_subfield *fields, size_t n_fields) | |
15aaf599 | 8648 | OVS_REQUIRES(ofproto_mutex) |
254750ce | 8649 | { |
254750ce BP |
8650 | struct rule *rule; |
8651 | ||
82c22d34 | 8652 | if ((table->eviction != 0) == (eviction != 0) |
254750ce BP |
8653 | && n_fields == table->n_eviction_fields |
8654 | && (!n_fields | |
8655 | || !memcmp(fields, table->eviction_fields, | |
8656 | n_fields * sizeof *fields))) { | |
82c22d34 BP |
8657 | /* The set of eviction fields did not change. If 'eviction' changed, |
8658 | * it remains nonzero, so that we can just update table->eviction | |
8659 | * without fussing with the eviction groups. */ | |
8660 | table->eviction = eviction; | |
254750ce BP |
8661 | return; |
8662 | } | |
8663 | ||
82c22d34 BP |
8664 | /* Destroy existing eviction groups, then destroy and recreate data |
8665 | * structures to recover memory. */ | |
8666 | struct eviction_group *evg, *next; | |
8667 | HMAP_FOR_EACH_SAFE (evg, next, id_node, &table->eviction_groups_by_id) { | |
8668 | eviction_group_destroy(table, evg); | |
8669 | } | |
8670 | hmap_destroy(&table->eviction_groups_by_id); | |
254750ce | 8671 | hmap_init(&table->eviction_groups_by_id); |
82c22d34 | 8672 | heap_destroy(&table->eviction_groups_by_size); |
254750ce BP |
8673 | heap_init(&table->eviction_groups_by_size); |
8674 | ||
82c22d34 BP |
8675 | /* Replace eviction groups by the new ones, if there is a change. Free the |
8676 | * old fields only after allocating the new ones, because 'fields == | |
8677 | * table->eviction_fields' is possible. */ | |
8678 | struct mf_subfield *old_fields = table->eviction_fields; | |
8679 | table->n_eviction_fields = n_fields; | |
8680 | table->eviction_fields = (fields | |
8681 | ? xmemdup(fields, n_fields * sizeof *fields) | |
8682 | : NULL); | |
8683 | free(old_fields); | |
8684 | ||
8685 | /* Add the new eviction groups, if enabled. */ | |
8686 | table->eviction = eviction; | |
8687 | if (table->eviction) { | |
8688 | table->eviction_group_id_basis = random_uint32(); | |
8689 | CLS_FOR_EACH (rule, cr, &table->cls) { | |
8690 | eviction_group_add_rule(rule); | |
8691 | } | |
254750ce | 8692 | } |
d0918789 BP |
8693 | } |
8694 | ||
bc5e6a91 JR |
8695 | /* Inserts 'rule' from the ofproto data structures BEFORE caller has inserted |
8696 | * it to the classifier. */ | |
8697 | static void | |
8698 | ofproto_rule_insert__(struct ofproto *ofproto, struct rule *rule) | |
8699 | OVS_REQUIRES(ofproto_mutex) | |
8700 | { | |
8701 | const struct rule_actions *actions = rule_get_actions(rule); | |
8702 | ||
30d0452c | 8703 | /* A rule may not be reinserted. */ |
9a0ac025 | 8704 | ovs_assert(rule->state != RULE_INSERTED); |
39c94593 | 8705 | |
bc5e6a91 | 8706 | if (rule->hard_timeout || rule->idle_timeout) { |
417e7e66 | 8707 | ovs_list_insert(&ofproto->expirable, &rule->expirable); |
bc5e6a91 JR |
8708 | } |
8709 | cookies_insert(ofproto, rule); | |
8710 | eviction_group_add_rule(rule); | |
8711 | if (actions->has_meter) { | |
8712 | meter_insert_rule(rule); | |
8713 | } | |
cc099268 JR |
8714 | if (actions->has_groups) { |
8715 | const struct ofpact_group *a; | |
8716 | OFPACT_FOR_EACH_TYPE_FLATTENED (a, GROUP, actions->ofpacts, | |
8717 | actions->ofpacts_len) { | |
8718 | struct ofgroup *group; | |
8719 | ||
5d08a275 JR |
8720 | group = ofproto_group_lookup(ofproto, a->group_id, OVS_VERSION_MAX, |
8721 | false); | |
cc099268 JR |
8722 | ovs_assert(group != NULL); |
8723 | group_add_rule(group, rule); | |
8724 | } | |
8725 | } | |
8726 | ||
30d0452c | 8727 | rule->state = RULE_INSERTED; |
bc5e6a91 JR |
8728 | } |
8729 | ||
6787a49f JR |
8730 | /* Removes 'rule' from the ofproto data structures. Caller may have deferred |
8731 | * the removal from the classifier. */ | |
d0918789 | 8732 | static void |
802f84ff | 8733 | ofproto_rule_remove__(struct ofproto *ofproto, struct rule *rule) |
15aaf599 | 8734 | OVS_REQUIRES(ofproto_mutex) |
d0918789 | 8735 | { |
30d0452c | 8736 | ovs_assert(rule->state == RULE_INSERTED); |
39c94593 | 8737 | |
98eaac36 | 8738 | cookies_remove(ofproto, rule); |
2c916028 | 8739 | |
254750ce | 8740 | eviction_group_remove_rule(rule); |
417e7e66 BW |
8741 | if (!ovs_list_is_empty(&rule->expirable)) { |
8742 | ovs_list_remove(&rule->expirable); | |
e503cc19 | 8743 | } |
417e7e66 BW |
8744 | if (!ovs_list_is_empty(&rule->meter_list_node)) { |
8745 | ovs_list_remove(&rule->meter_list_node); | |
8746 | ovs_list_init(&rule->meter_list_node); | |
9cae45dc | 8747 | } |
802f84ff | 8748 | |
cc099268 JR |
8749 | /* Remove the rule from any groups, except from the group that is being |
8750 | * deleted, if any. */ | |
8751 | const struct rule_actions *actions = rule_get_actions(rule); | |
8752 | ||
8753 | if (actions->has_groups) { | |
8754 | const struct ofpact_group *a; | |
8755 | ||
8483173b | 8756 | OFPACT_FOR_EACH_TYPE_FLATTENED(a, GROUP, actions->ofpacts, |
cc099268 JR |
8757 | actions->ofpacts_len) { |
8758 | struct ofgroup *group; | |
8759 | ||
5d08a275 JR |
8760 | group = ofproto_group_lookup(ofproto, a->group_id, OVS_VERSION_MAX, |
8761 | false); | |
cc099268 JR |
8762 | ovs_assert(group); |
8763 | ||
8764 | /* Leave the rule for the group that is being deleted, if any, | |
8765 | * as we still need the list of rules for clean-up. */ | |
8766 | if (!group->being_deleted) { | |
8767 | group_remove_rule(group, rule); | |
8768 | } | |
8769 | } | |
8770 | } | |
8771 | ||
30d0452c | 8772 | rule->state = RULE_REMOVED; |
0b4f2078 | 8773 | } |
d0918789 | 8774 | \f |
abe529af | 8775 | /* unixctl commands. */ |
7aa697dd | 8776 | |
abe529af | 8777 | struct ofproto * |
2ac6bedd | 8778 | ofproto_lookup(const char *name) |
7aa697dd | 8779 | { |
2ac6bedd | 8780 | struct ofproto *ofproto; |
7aa697dd | 8781 | |
2ac6bedd BP |
8782 | HMAP_FOR_EACH_WITH_HASH (ofproto, hmap_node, hash_string(name, 0), |
8783 | &all_ofprotos) { | |
8784 | if (!strcmp(ofproto->name, name)) { | |
8785 | return ofproto; | |
8786 | } | |
7aa697dd | 8787 | } |
2ac6bedd | 8788 | return NULL; |
7aa697dd BP |
8789 | } |
8790 | ||
8791 | static void | |
0e15264f BP |
8792 | ofproto_unixctl_list(struct unixctl_conn *conn, int argc OVS_UNUSED, |
8793 | const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED) | |
7aa697dd | 8794 | { |
7aa697dd | 8795 | struct ofproto *ofproto; |
7aa697dd | 8796 | struct ds results; |
7aa697dd | 8797 | |
7aa697dd | 8798 | ds_init(&results); |
2ac6bedd BP |
8799 | HMAP_FOR_EACH (ofproto, hmap_node, &all_ofprotos) { |
8800 | ds_put_format(&results, "%s\n", ofproto->name); | |
7aa697dd | 8801 | } |
bde9f75d | 8802 | unixctl_command_reply(conn, ds_cstr(&results)); |
7aa697dd | 8803 | ds_destroy(&results); |
7aa697dd BP |
8804 | } |
8805 | ||
8806 | static void | |
8807 | ofproto_unixctl_init(void) | |
8808 | { | |
8809 | static bool registered; | |
8810 | if (registered) { | |
8811 | return; | |
8812 | } | |
8813 | registered = true; | |
8814 | ||
0e15264f BP |
8815 | unixctl_command_register("ofproto/list", "", 0, 0, |
8816 | ofproto_unixctl_list, NULL); | |
064af421 | 8817 | } |
f0fb825a EG |
8818 | |
8819 | void | |
8820 | ofproto_set_vlan_limit(int vlan_limit) | |
8821 | { | |
8822 | flow_limit_vlans(vlan_limit); | |
8823 | } |