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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 | |
4e413ac8 BP |
88 | static void oftable_set_name(struct oftable *, const char *name, int level); |
89 | static bool oftable_may_set_name(const struct oftable *, | |
90 | const char *name, int level); | |
254750ce | 91 | |
6787a49f | 92 | static enum ofperr evict_rules_from_table(struct oftable *) |
834fe5cb | 93 | OVS_REQUIRES(ofproto_mutex); |
82c22d34 BP |
94 | static void oftable_configure_eviction(struct oftable *, |
95 | unsigned int eviction, | |
96 | const struct mf_subfield *fields, | |
97 | size_t n_fields) | |
7394b8fb | 98 | OVS_REQUIRES(ofproto_mutex); |
254750ce | 99 | |
82c22d34 BP |
100 | /* This is the only combination of OpenFlow eviction flags that OVS supports: a |
101 | * combination of OF1.4+ importance, the remaining lifetime of the flow, and | |
102 | * fairness based on user-specified fields. */ | |
103 | #define OFPROTO_EVICTION_FLAGS \ | |
104 | (OFPTMPEF14_OTHER | OFPTMPEF14_IMPORTANCE | OFPTMPEF14_LIFETIME) | |
105 | ||
254750ce BP |
106 | /* A set of rules within a single OpenFlow table (oftable) that have the same |
107 | * values for the oftable's eviction_fields. A rule to be evicted, when one is | |
108 | * needed, is taken from the eviction group that contains the greatest number | |
109 | * of rules. | |
110 | * | |
111 | * An oftable owns any number of eviction groups, each of which contains any | |
112 | * number of rules. | |
113 | * | |
114 | * Membership in an eviction group is imprecise, based on the hash of the | |
115 | * oftable's eviction_fields (in the eviction_group's id_node.hash member). | |
116 | * That is, if two rules have different eviction_fields, but those | |
117 | * eviction_fields hash to the same value, then they will belong to the same | |
118 | * eviction_group anyway. | |
119 | * | |
120 | * (When eviction is not enabled on an oftable, we don't track any eviction | |
121 | * groups, to save time and space.) */ | |
122 | struct eviction_group { | |
123 | struct hmap_node id_node; /* In oftable's "eviction_groups_by_id". */ | |
124 | struct heap_node size_node; /* In oftable's "eviction_groups_by_size". */ | |
125 | struct heap rules; /* Contains "struct rule"s. */ | |
126 | }; | |
127 | ||
3d900aa7 BP |
128 | static bool choose_rule_to_evict(struct oftable *table, struct rule **rulep) |
129 | OVS_REQUIRES(ofproto_mutex); | |
f70b94de BP |
130 | static uint64_t rule_eviction_priority(struct ofproto *ofproto, struct rule *) |
131 | OVS_REQUIRES(ofproto_mutex); | |
3d900aa7 BP |
132 | static void eviction_group_add_rule(struct rule *) |
133 | OVS_REQUIRES(ofproto_mutex); | |
134 | static void eviction_group_remove_rule(struct rule *) | |
135 | OVS_REQUIRES(ofproto_mutex); | |
f29152ca | 136 | |
a9b22b7f | 137 | static void rule_criteria_init(struct rule_criteria *, uint8_t table_id, |
6a6b7060 | 138 | const struct minimatch *match, int priority, |
44e0c35d | 139 | ovs_version_t version, |
a9b22b7f BP |
140 | ovs_be64 cookie, ovs_be64 cookie_mask, |
141 | ofp_port_t out_port, uint32_t out_group); | |
dd51dae2 BP |
142 | static void rule_criteria_require_rw(struct rule_criteria *, |
143 | bool can_write_readonly); | |
a9b22b7f BP |
144 | static void rule_criteria_destroy(struct rule_criteria *); |
145 | ||
35f48b8b BP |
146 | static enum ofperr collect_rules_loose(struct ofproto *, |
147 | const struct rule_criteria *, | |
148 | struct rule_collection *); | |
149 | ||
35f48b8b BP |
150 | struct learned_cookie { |
151 | union { | |
152 | /* In struct ofproto's 'learned_cookies' hmap. */ | |
153 | struct hmap_node hmap_node OVS_GUARDED_BY(ofproto_mutex); | |
154 | ||
155 | /* In 'dead_cookies' list when removed from hmap. */ | |
ca6ba700 | 156 | struct ovs_list list_node; |
fa37affa | 157 | }; |
35f48b8b BP |
158 | |
159 | /* Key. */ | |
160 | ovs_be64 cookie OVS_GUARDED_BY(ofproto_mutex); | |
161 | uint8_t table_id OVS_GUARDED_BY(ofproto_mutex); | |
162 | ||
163 | /* Number of references from "learn" actions. | |
164 | * | |
165 | * When this drops to 0, all of the flows in 'table_id' with the specified | |
166 | * 'cookie' are deleted. */ | |
167 | int n OVS_GUARDED_BY(ofproto_mutex); | |
168 | }; | |
169 | ||
170 | static const struct ofpact_learn *next_learn_with_delete( | |
171 | const struct rule_actions *, const struct ofpact_learn *start); | |
172 | ||
173 | static void learned_cookies_inc(struct ofproto *, const struct rule_actions *) | |
174 | OVS_REQUIRES(ofproto_mutex); | |
175 | static void learned_cookies_dec(struct ofproto *, const struct rule_actions *, | |
ca6ba700 | 176 | struct ovs_list *dead_cookies) |
35f48b8b | 177 | OVS_REQUIRES(ofproto_mutex); |
ca6ba700 | 178 | static void learned_cookies_flush(struct ofproto *, struct ovs_list *dead_cookies) |
35f48b8b BP |
179 | OVS_REQUIRES(ofproto_mutex); |
180 | ||
d0918789 | 181 | /* ofport. */ |
15aaf599 | 182 | static void ofport_destroy__(struct ofport *) OVS_EXCLUDED(ofproto_mutex); |
9aad5a5a | 183 | static void ofport_destroy(struct ofport *, bool del); |
3a414a0a DDP |
184 | static bool ofport_is_mtu_overridden(const struct ofproto *, |
185 | const struct ofport *); | |
d0918789 | 186 | |
01c77073 | 187 | static int update_port(struct ofproto *, const char *devname); |
d0918789 BP |
188 | static int init_ports(struct ofproto *); |
189 | static void reinit_ports(struct ofproto *); | |
7ee20df1 | 190 | |
fdcea803 GS |
191 | static long long int ofport_get_usage(const struct ofproto *, |
192 | ofp_port_t ofp_port); | |
193 | static void ofport_set_usage(struct ofproto *, ofp_port_t ofp_port, | |
194 | long long int last_used); | |
865b26a4 | 195 | static void ofport_remove_usage(struct ofproto *, ofp_port_t ofp_port); |
fdcea803 GS |
196 | |
197 | /* Ofport usage. | |
198 | * | |
199 | * Keeps track of the currently used and recently used ofport values and is | |
200 | * used to prevent immediate recycling of ofport values. */ | |
201 | struct ofport_usage { | |
202 | struct hmap_node hmap_node; /* In struct ofproto's "ofport_usage" hmap. */ | |
203 | ofp_port_t ofp_port; /* OpenFlow port number. */ | |
204 | long long int last_used; /* Last time the 'ofp_port' was used. LLONG_MAX | |
205 | represents in-use ofports. */ | |
206 | }; | |
207 | ||
254750ce | 208 | /* rule. */ |
f695ebfa JR |
209 | static void ofproto_rule_send_removed(struct rule *) |
210 | OVS_EXCLUDED(ofproto_mutex); | |
834fe5cb | 211 | static bool rule_is_readonly(const struct rule *); |
bc5e6a91 JR |
212 | static void ofproto_rule_insert__(struct ofproto *, struct rule *) |
213 | OVS_REQUIRES(ofproto_mutex); | |
802f84ff JR |
214 | static void ofproto_rule_remove__(struct ofproto *, struct rule *) |
215 | OVS_REQUIRES(ofproto_mutex); | |
254750ce | 216 | |
0a0d9385 | 217 | /* The source of an OpenFlow request. |
baae3d02 | 218 | * |
0a0d9385 JR |
219 | * A table modification request can be generated externally, via OpenFlow, or |
220 | * internally through a function call. This structure indicates the source of | |
221 | * an OpenFlow-generated table modification. For an internal flow_mod, it | |
222 | * isn't meaningful and thus supplied as NULL. */ | |
223 | struct openflow_mod_requester { | |
baae3d02 | 224 | struct ofconn *ofconn; /* Connection on which flow_mod arrived. */ |
c84d8691 | 225 | const struct ofp_header *request; |
baae3d02 BP |
226 | }; |
227 | ||
d0918789 | 228 | /* OpenFlow. */ |
5bacd5cd JR |
229 | static enum ofperr ofproto_rule_create(struct ofproto *, struct cls_rule *, |
230 | uint8_t table_id, ovs_be64 new_cookie, | |
231 | uint16_t idle_timeout, | |
232 | uint16_t hard_timeout, | |
233 | enum ofputil_flow_mod_flags flags, | |
234 | uint16_t importance, | |
235 | const struct ofpact *ofpacts, | |
236 | size_t ofpacts_len, | |
5c7c16d8 YHW |
237 | uint64_t match_tlv_bitmap, |
238 | uint64_t ofpacts_tlv_bitmap, | |
39c94593 | 239 | struct rule **new_rule) |
5bacd5cd | 240 | OVS_NO_THREAD_SAFETY_ANALYSIS; |
39c94593 | 241 | |
5bacd5cd JR |
242 | static void replace_rule_start(struct ofproto *, struct ofproto_flow_mod *, |
243 | struct rule *old_rule, struct rule *new_rule) | |
dd27be82 | 244 | OVS_REQUIRES(ofproto_mutex); |
39c94593 | 245 | |
6787a49f JR |
246 | static void replace_rule_revert(struct ofproto *, struct rule *old_rule, |
247 | struct rule *new_rule) | |
39c94593 JR |
248 | OVS_REQUIRES(ofproto_mutex); |
249 | ||
81dee635 | 250 | static void replace_rule_finish(struct ofproto *, struct ofproto_flow_mod *, |
0a0d9385 | 251 | const struct openflow_mod_requester *, |
39c94593 JR |
252 | struct rule *old_rule, struct rule *new_rule, |
253 | struct ovs_list *dead_cookies) | |
dd27be82 | 254 | OVS_REQUIRES(ofproto_mutex); |
39c94593 | 255 | static void delete_flows__(struct rule_collection *, |
9ca4a86f | 256 | enum ofp_flow_removed_reason, |
0a0d9385 | 257 | const struct openflow_mod_requester *) |
15aaf599 | 258 | OVS_REQUIRES(ofproto_mutex); |
834fe5cb | 259 | |
d3b84833 BP |
260 | static void ofproto_group_delete_all__(struct ofproto *) |
261 | OVS_REQUIRES(ofproto_mutex); | |
db88b35c | 262 | static bool ofproto_group_exists(const struct ofproto *, uint32_t group_id); |
fd4b7a0e | 263 | static void handle_openflow(struct ofconn *, const struct ovs_list *msgs); |
5bacd5cd JR |
264 | static enum ofperr ofproto_flow_mod_init(struct ofproto *, |
265 | struct ofproto_flow_mod *, | |
2c7ee524 JR |
266 | const struct ofputil_flow_mod *fm, |
267 | struct rule *) | |
5bacd5cd | 268 | OVS_EXCLUDED(ofproto_mutex); |
8be00367 JR |
269 | static enum ofperr ofproto_flow_mod_start(struct ofproto *, |
270 | struct ofproto_flow_mod *) | |
1f42be1c | 271 | OVS_REQUIRES(ofproto_mutex); |
6dd3c787 JR |
272 | static void ofproto_flow_mod_revert(struct ofproto *, |
273 | struct ofproto_flow_mod *) | |
274 | OVS_REQUIRES(ofproto_mutex); | |
8be00367 JR |
275 | static void ofproto_flow_mod_finish(struct ofproto *, |
276 | struct ofproto_flow_mod *, | |
0a0d9385 | 277 | const struct openflow_mod_requester *) |
1f42be1c | 278 | OVS_REQUIRES(ofproto_mutex); |
baae3d02 | 279 | static enum ofperr handle_flow_mod__(struct ofproto *, |
7338102b | 280 | const struct ofputil_flow_mod *, |
0a0d9385 | 281 | const struct openflow_mod_requester *) |
15aaf599 | 282 | OVS_EXCLUDED(ofproto_mutex); |
65e0be10 BP |
283 | static void calc_duration(long long int start, long long int now, |
284 | uint32_t *sec, uint32_t *nsec); | |
f29152ca | 285 | |
d0918789 BP |
286 | /* ofproto. */ |
287 | static uint64_t pick_datapath_id(const struct ofproto *); | |
288 | static uint64_t pick_fallback_dpid(void); | |
289 | static void ofproto_destroy__(struct ofproto *); | |
ada3428f | 290 | static void update_mtu(struct ofproto *, struct ofport *); |
0670b5d0 | 291 | static void update_mtu_ofproto(struct ofproto *); |
ba8cff36 AZ |
292 | static void meter_delete(struct ofproto *, uint32_t); |
293 | static void meter_delete_all(struct ofproto *); | |
062fea06 | 294 | static void meter_insert_rule(struct rule *); |
f29152ca | 295 | |
d0918789 | 296 | /* unixctl. */ |
abe529af | 297 | static void ofproto_unixctl_init(void); |
f29152ca | 298 | |
abe529af BP |
299 | /* All registered ofproto classes, in probe order. */ |
300 | static const struct ofproto_class **ofproto_classes; | |
301 | static size_t n_ofproto_classes; | |
302 | static size_t allocated_ofproto_classes; | |
7aa697dd | 303 | |
15aaf599 BP |
304 | /* Global lock that protects all flow table operations. */ |
305 | struct ovs_mutex ofproto_mutex = OVS_MUTEX_INITIALIZER; | |
abe7b10f | 306 | |
e79a6c83 | 307 | unsigned ofproto_flow_limit = OFPROTO_FLOW_LIMIT_DEFAULT; |
72310b04 | 308 | unsigned ofproto_max_idle = OFPROTO_MAX_IDLE_DEFAULT; |
380f49c4 | 309 | |
e79a6c83 | 310 | size_t n_handlers, n_revalidators; |
6567010f | 311 | |
f797957a | 312 | /* Map from datapath name to struct ofproto, for use by unixctl commands. */ |
abe529af | 313 | static struct hmap all_ofprotos = HMAP_INITIALIZER(&all_ofprotos); |
ebe482fd | 314 | |
e1b1d06a JP |
315 | /* Initial mappings of port to OpenFlow number mappings. */ |
316 | static struct shash init_ofp_ports = SHASH_INITIALIZER(&init_ofp_ports); | |
317 | ||
abe529af | 318 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); |
f29152ca | 319 | |
40358701 GS |
320 | /* The default value of true waits for flow restore. */ |
321 | static bool flow_restore_wait = true; | |
322 | ||
b0408fca JP |
323 | /* Must be called to initialize the ofproto library. |
324 | * | |
325 | * The caller may pass in 'iface_hints', which contains an shash of | |
326 | * "iface_hint" elements indexed by the interface's name. The provider | |
327 | * may use these hints to describe the startup configuration in order to | |
328 | * reinitialize its state. The caller owns the provided data, so a | |
329 | * provider will make copies of anything required. An ofproto provider | |
330 | * will remove any existing state that is not described by the hint, and | |
331 | * may choose to remove it all. */ | |
332 | void | |
333 | ofproto_init(const struct shash *iface_hints) | |
abe529af | 334 | { |
e1b1d06a | 335 | struct shash_node *node; |
b0408fca | 336 | size_t i; |
f29152ca | 337 | |
b0408fca JP |
338 | ofproto_class_register(&ofproto_dpif_class); |
339 | ||
e1b1d06a JP |
340 | /* Make a local copy, since we don't own 'iface_hints' elements. */ |
341 | SHASH_FOR_EACH(node, iface_hints) { | |
342 | const struct iface_hint *orig_hint = node->data; | |
343 | struct iface_hint *new_hint = xmalloc(sizeof *new_hint); | |
344 | const char *br_type = ofproto_normalize_type(orig_hint->br_type); | |
345 | ||
346 | new_hint->br_name = xstrdup(orig_hint->br_name); | |
347 | new_hint->br_type = xstrdup(br_type); | |
348 | new_hint->ofp_port = orig_hint->ofp_port; | |
349 | ||
350 | shash_add(&init_ofp_ports, node->name, new_hint); | |
351 | } | |
352 | ||
b0408fca | 353 | for (i = 0; i < n_ofproto_classes; i++) { |
e1b1d06a | 354 | ofproto_classes[i]->init(&init_ofp_ports); |
abe529af | 355 | } |
0fc1f5c0 HH |
356 | |
357 | ofproto_unixctl_init(); | |
abe529af | 358 | } |
f29152ca | 359 | |
abe529af BP |
360 | /* 'type' should be a normalized datapath type, as returned by |
361 | * ofproto_normalize_type(). Returns the corresponding ofproto_class | |
362 | * structure, or a null pointer if there is none registered for 'type'. */ | |
363 | static const struct ofproto_class * | |
364 | ofproto_class_find__(const char *type) | |
365 | { | |
366 | size_t i; | |
f29152ca | 367 | |
abe529af BP |
368 | for (i = 0; i < n_ofproto_classes; i++) { |
369 | const struct ofproto_class *class = ofproto_classes[i]; | |
370 | struct sset types; | |
371 | bool found; | |
064af421 | 372 | |
abe529af BP |
373 | sset_init(&types); |
374 | class->enumerate_types(&types); | |
375 | found = sset_contains(&types, type); | |
376 | sset_destroy(&types); | |
bcf84111 | 377 | |
abe529af BP |
378 | if (found) { |
379 | return class; | |
380 | } | |
381 | } | |
382 | VLOG_WARN("unknown datapath type %s", type); | |
383 | return NULL; | |
384 | } | |
064af421 | 385 | |
abe529af BP |
386 | /* Registers a new ofproto class. After successful registration, new ofprotos |
387 | * of that type can be created using ofproto_create(). */ | |
388 | int | |
389 | ofproto_class_register(const struct ofproto_class *new_class) | |
390 | { | |
391 | size_t i; | |
7aa697dd | 392 | |
abe529af BP |
393 | for (i = 0; i < n_ofproto_classes; i++) { |
394 | if (ofproto_classes[i] == new_class) { | |
395 | return EEXIST; | |
396 | } | |
397 | } | |
064af421 | 398 | |
abe529af BP |
399 | if (n_ofproto_classes >= allocated_ofproto_classes) { |
400 | ofproto_classes = x2nrealloc(ofproto_classes, | |
401 | &allocated_ofproto_classes, | |
402 | sizeof *ofproto_classes); | |
403 | } | |
404 | ofproto_classes[n_ofproto_classes++] = new_class; | |
405 | return 0; | |
406 | } | |
064af421 | 407 | |
abe529af BP |
408 | /* Unregisters a datapath provider. 'type' must have been previously |
409 | * registered and not currently be in use by any ofprotos. After | |
410 | * unregistration new datapaths of that type cannot be opened using | |
411 | * ofproto_create(). */ | |
412 | int | |
413 | ofproto_class_unregister(const struct ofproto_class *class) | |
414 | { | |
415 | size_t i; | |
76ce9432 | 416 | |
abe529af BP |
417 | for (i = 0; i < n_ofproto_classes; i++) { |
418 | if (ofproto_classes[i] == class) { | |
419 | for (i++; i < n_ofproto_classes; i++) { | |
420 | ofproto_classes[i - 1] = ofproto_classes[i]; | |
421 | } | |
422 | n_ofproto_classes--; | |
423 | return 0; | |
424 | } | |
425 | } | |
426 | VLOG_WARN("attempted to unregister an ofproto class that is not " | |
427 | "registered"); | |
428 | return EAFNOSUPPORT; | |
429 | } | |
4a4cdb3b | 430 | |
f79e673f BP |
431 | /* Clears 'types' and enumerates all registered ofproto types into it. The |
432 | * caller must first initialize the sset. */ | |
433 | void | |
434 | ofproto_enumerate_types(struct sset *types) | |
435 | { | |
abe529af | 436 | size_t i; |
064af421 | 437 | |
c799c306 | 438 | sset_clear(types); |
abe529af BP |
439 | for (i = 0; i < n_ofproto_classes; i++) { |
440 | ofproto_classes[i]->enumerate_types(types); | |
441 | } | |
f79e673f | 442 | } |
064af421 | 443 | |
f79e673f BP |
444 | /* Returns the fully spelled out name for the given ofproto 'type'. |
445 | * | |
446 | * Normalized type string can be compared with strcmp(). Unnormalized type | |
447 | * string might be the same even if they have different spellings. */ | |
448 | const char * | |
449 | ofproto_normalize_type(const char *type) | |
450 | { | |
abe529af | 451 | return type && type[0] ? type : "system"; |
f79e673f | 452 | } |
064af421 | 453 | |
f79e673f BP |
454 | /* Clears 'names' and enumerates the names of all known created ofprotos with |
455 | * the given 'type'. The caller must first initialize the sset. Returns 0 if | |
456 | * successful, otherwise a positive errno value. | |
457 | * | |
458 | * Some kinds of datapaths might not be practically enumerable. This is not | |
459 | * considered an error. */ | |
460 | int | |
461 | ofproto_enumerate_names(const char *type, struct sset *names) | |
462 | { | |
abe529af BP |
463 | const struct ofproto_class *class = ofproto_class_find__(type); |
464 | return class ? class->enumerate_names(type, names) : EAFNOSUPPORT; | |
239ad7d1 | 465 | } |
7aa697dd | 466 | |
39c94593 JR |
467 | static void |
468 | ofproto_bump_tables_version(struct ofproto *ofproto) | |
469 | { | |
470 | ++ofproto->tables_version; | |
471 | ofproto->ofproto_class->set_tables_version(ofproto, | |
472 | ofproto->tables_version); | |
473 | } | |
474 | ||
064af421 | 475 | int |
abe529af | 476 | ofproto_create(const char *datapath_name, const char *datapath_type, |
064af421 | 477 | struct ofproto **ofprotop) |
25010c68 | 478 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 479 | { |
abe529af BP |
480 | const struct ofproto_class *class; |
481 | struct ofproto *ofproto; | |
064af421 | 482 | int error; |
c2f0373a | 483 | int i; |
064af421 BP |
484 | |
485 | *ofprotop = NULL; | |
486 | ||
abe529af BP |
487 | datapath_type = ofproto_normalize_type(datapath_type); |
488 | class = ofproto_class_find__(datapath_type); | |
489 | if (!class) { | |
490 | VLOG_WARN("could not create datapath %s of unknown type %s", | |
491 | datapath_name, datapath_type); | |
492 | return EAFNOSUPPORT; | |
064af421 BP |
493 | } |
494 | ||
abe529af BP |
495 | ofproto = class->alloc(); |
496 | if (!ofproto) { | |
497 | VLOG_ERR("failed to allocate datapath %s of type %s", | |
498 | datapath_name, datapath_type); | |
499 | return ENOMEM; | |
500 | } | |
501 | ||
502 | /* Initialize. */ | |
abe7b10f | 503 | ovs_mutex_lock(&ofproto_mutex); |
abe529af BP |
504 | memset(ofproto, 0, sizeof *ofproto); |
505 | ofproto->ofproto_class = class; | |
506 | ofproto->name = xstrdup(datapath_name); | |
507 | ofproto->type = xstrdup(datapath_type); | |
508 | hmap_insert(&all_ofprotos, &ofproto->hmap_node, | |
509 | hash_string(ofproto->name, 0)); | |
510 | ofproto->datapath_id = 0; | |
8402c74b | 511 | ofproto->forward_bpdu = false; |
abe529af | 512 | ofproto->fallback_dpid = pick_fallback_dpid(); |
061bfea4 BP |
513 | ofproto->mfr_desc = NULL; |
514 | ofproto->hw_desc = NULL; | |
515 | ofproto->sw_desc = NULL; | |
516 | ofproto->serial_desc = NULL; | |
517 | ofproto->dp_desc = NULL; | |
ad99e2ed | 518 | ofproto->frag_handling = OFPUTIL_FRAG_NORMAL; |
abe529af | 519 | hmap_init(&ofproto->ports); |
fdcea803 | 520 | hmap_init(&ofproto->ofport_usage); |
abe529af | 521 | shash_init(&ofproto->port_by_name); |
e1b1d06a | 522 | simap_init(&ofproto->ofp_requests); |
430dbb14 | 523 | ofproto->max_ports = ofp_to_u16(OFPP_MAX); |
448c2fa8 | 524 | ofproto->eviction_group_timer = LLONG_MIN; |
6c1491fb BP |
525 | ofproto->tables = NULL; |
526 | ofproto->n_tables = 0; | |
44e0c35d | 527 | ofproto->tables_version = OVS_VERSION_MIN; |
98eaac36 | 528 | hindex_init(&ofproto->cookies); |
35f48b8b | 529 | hmap_init(&ofproto->learned_cookies); |
417e7e66 | 530 | ovs_list_init(&ofproto->expirable); |
abe529af | 531 | ofproto->connmgr = connmgr_create(ofproto, datapath_name, datapath_name); |
7478b5a2 | 532 | ofproto->min_mtu = INT_MAX; |
db88b35c | 533 | cmap_init(&ofproto->groups); |
abe7b10f | 534 | ovs_mutex_unlock(&ofproto_mutex); |
0ae01c64 | 535 | ofproto->ogf.types = 0xf; |
7cb279c2 SH |
536 | ofproto->ogf.capabilities = OFPGFC_CHAINING | OFPGFC_SELECT_LIVENESS | |
537 | OFPGFC_SELECT_WEIGHT; | |
08d1e234 BP |
538 | for (i = 0; i < 4; i++) { |
539 | ofproto->ogf.max_groups[i] = OFPG_MAX; | |
540 | ofproto->ogf.ofpacts[i] = (UINT64_C(1) << N_OFPACTS) - 1; | |
541 | } | |
8d8ab6c2 | 542 | ovsrcu_set(&ofproto->metadata_tab, tun_metadata_alloc(NULL)); |
abe529af | 543 | |
04f48a68 YHW |
544 | ovs_mutex_init(&ofproto->vl_mff_map.mutex); |
545 | cmap_init(&ofproto->vl_mff_map.cmap); | |
546 | ||
0f5f95a9 | 547 | error = ofproto->ofproto_class->construct(ofproto); |
19a87e36 | 548 | if (error) { |
abe529af | 549 | VLOG_ERR("failed to open datapath %s: %s", |
10a89ef0 | 550 | datapath_name, ovs_strerror(error)); |
25010c68 | 551 | ovs_mutex_lock(&ofproto_mutex); |
58f19539 | 552 | connmgr_destroy(ofproto->connmgr); |
25010c68 JR |
553 | ofproto->connmgr = NULL; |
554 | ovs_mutex_unlock(&ofproto_mutex); | |
abe529af | 555 | ofproto_destroy__(ofproto); |
19a87e36 BP |
556 | return error; |
557 | } | |
073e2a6f | 558 | |
c2f0373a | 559 | /* Check that hidden tables, if any, are at the end. */ |
cb22974d | 560 | ovs_assert(ofproto->n_tables); |
c2f0373a BP |
561 | for (i = 0; i + 1 < ofproto->n_tables; i++) { |
562 | enum oftable_flags flags = ofproto->tables[i].flags; | |
563 | enum oftable_flags next_flags = ofproto->tables[i + 1].flags; | |
564 | ||
cb22974d | 565 | ovs_assert(!(flags & OFTABLE_HIDDEN) || next_flags & OFTABLE_HIDDEN); |
c2f0373a | 566 | } |
19a87e36 | 567 | |
abe529af | 568 | ofproto->datapath_id = pick_datapath_id(ofproto); |
abe529af | 569 | init_ports(ofproto); |
7aa697dd | 570 | |
9cae45dc JR |
571 | /* Initialize meters table. */ |
572 | if (ofproto->ofproto_class->meter_get_features) { | |
573 | ofproto->ofproto_class->meter_get_features(ofproto, | |
574 | &ofproto->meter_features); | |
575 | } else { | |
576 | memset(&ofproto->meter_features, 0, sizeof ofproto->meter_features); | |
577 | } | |
ba8cff36 | 578 | hmap_init(&ofproto->meters); |
9e638f22 AZ |
579 | ofproto->slowpath_meter_id = UINT32_MAX; |
580 | ofproto->controller_meter_id = UINT32_MAX; | |
9cae45dc | 581 | |
621b8064 | 582 | /* Set the initial tables version. */ |
39c94593 | 583 | ofproto_bump_tables_version(ofproto); |
621b8064 | 584 | |
abe529af | 585 | *ofprotop = ofproto; |
064af421 BP |
586 | return 0; |
587 | } | |
588 | ||
91858960 BP |
589 | /* Must be called (only) by an ofproto implementation in its constructor |
590 | * function. See the large comment on 'construct' in struct ofproto_class for | |
591 | * details. */ | |
0f5f95a9 BP |
592 | void |
593 | ofproto_init_tables(struct ofproto *ofproto, int n_tables) | |
594 | { | |
595 | struct oftable *table; | |
596 | ||
cb22974d BP |
597 | ovs_assert(!ofproto->n_tables); |
598 | ovs_assert(n_tables >= 1 && n_tables <= 255); | |
0f5f95a9 BP |
599 | |
600 | ofproto->n_tables = n_tables; | |
601 | ofproto->tables = xmalloc(n_tables * sizeof *ofproto->tables); | |
602 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { | |
603 | oftable_init(table); | |
604 | } | |
605 | } | |
606 | ||
91858960 BP |
607 | /* To be optionally called (only) by an ofproto implementation in its |
608 | * constructor function. See the large comment on 'construct' in struct | |
609 | * ofproto_class for details. | |
610 | * | |
611 | * Sets the maximum number of ports to 'max_ports'. The ofproto generic layer | |
612 | * will then ensure that actions passed into the ofproto implementation will | |
613 | * not refer to OpenFlow ports numbered 'max_ports' or higher. If this | |
614 | * function is not called, there will be no such restriction. | |
615 | * | |
616 | * Reserved ports numbered OFPP_MAX and higher are special and not subject to | |
617 | * the 'max_ports' restriction. */ | |
618 | void | |
430dbb14 | 619 | ofproto_init_max_ports(struct ofproto *ofproto, uint16_t max_ports) |
91858960 | 620 | { |
430dbb14 | 621 | ovs_assert(max_ports <= ofp_to_u16(OFPP_MAX)); |
91858960 BP |
622 | ofproto->max_ports = max_ports; |
623 | } | |
624 | ||
e825ace2 BP |
625 | uint64_t |
626 | ofproto_get_datapath_id(const struct ofproto *ofproto) | |
627 | { | |
628 | return ofproto->datapath_id; | |
629 | } | |
630 | ||
064af421 BP |
631 | void |
632 | ofproto_set_datapath_id(struct ofproto *p, uint64_t datapath_id) | |
633 | { | |
634 | uint64_t old_dpid = p->datapath_id; | |
fa60c019 | 635 | p->datapath_id = datapath_id ? datapath_id : pick_datapath_id(p); |
064af421 | 636 | if (p->datapath_id != old_dpid) { |
76ce9432 BP |
637 | /* Force all active connections to reconnect, since there is no way to |
638 | * notify a controller that the datapath ID has changed. */ | |
fa05809b | 639 | ofproto_reconnect_controllers(p); |
064af421 BP |
640 | } |
641 | } | |
642 | ||
76ce9432 | 643 | void |
af26093a | 644 | ofproto_set_controllers(struct ofproto *p, struct shash *controllers) |
76ce9432 | 645 | { |
af26093a | 646 | connmgr_set_controllers(p->connmgr, controllers); |
064af421 BP |
647 | } |
648 | ||
31681a5d JP |
649 | void |
650 | ofproto_set_fail_mode(struct ofproto *p, enum ofproto_fail_mode fail_mode) | |
651 | { | |
19a87e36 | 652 | connmgr_set_fail_mode(p->connmgr, fail_mode); |
31681a5d JP |
653 | } |
654 | ||
fa05809b BP |
655 | /* Drops the connections between 'ofproto' and all of its controllers, forcing |
656 | * them to reconnect. */ | |
657 | void | |
658 | ofproto_reconnect_controllers(struct ofproto *ofproto) | |
659 | { | |
19a87e36 | 660 | connmgr_reconnect(ofproto->connmgr); |
917e50e1 BP |
661 | } |
662 | ||
663 | /* Sets the 'n' TCP port addresses in 'extras' as ones to which 'ofproto''s | |
664 | * in-band control should guarantee access, in the same way that in-band | |
665 | * control guarantees access to OpenFlow controllers. */ | |
666 | void | |
667 | ofproto_set_extra_in_band_remotes(struct ofproto *ofproto, | |
668 | const struct sockaddr_in *extras, size_t n) | |
669 | { | |
19a87e36 | 670 | connmgr_set_extra_in_band_remotes(ofproto->connmgr, extras, n); |
917e50e1 BP |
671 | } |
672 | ||
b1da6250 BP |
673 | /* Sets the OpenFlow queue used by flows set up by in-band control on |
674 | * 'ofproto' to 'queue_id'. If 'queue_id' is negative, then in-band control | |
675 | * flows will use the default queue. */ | |
676 | void | |
677 | ofproto_set_in_band_queue(struct ofproto *ofproto, int queue_id) | |
678 | { | |
19a87e36 | 679 | connmgr_set_in_band_queue(ofproto->connmgr, queue_id); |
b1da6250 BP |
680 | } |
681 | ||
7fdd2082 FL |
682 | /* Sets the bundle max idle timeout */ |
683 | void | |
684 | ofproto_set_bundle_idle_timeout(unsigned timeout) | |
685 | { | |
686 | connmgr_set_bundle_idle_timeout(timeout); | |
687 | } | |
688 | ||
084f5290 SH |
689 | /* Sets the number of flows at which eviction from the kernel flow table |
690 | * will occur. */ | |
691 | void | |
e79a6c83 | 692 | ofproto_set_flow_limit(unsigned limit) |
084f5290 | 693 | { |
e79a6c83 | 694 | ofproto_flow_limit = limit; |
084f5290 SH |
695 | } |
696 | ||
72310b04 JS |
697 | /* Sets the maximum idle time for flows in the datapath before they are |
698 | * expired. */ | |
699 | void | |
700 | ofproto_set_max_idle(unsigned max_idle) | |
701 | { | |
702 | ofproto_max_idle = max_idle; | |
703 | } | |
704 | ||
b53055f4 | 705 | /* If forward_bpdu is true, the NORMAL action will forward frames with |
8402c74b SS |
706 | * reserved (e.g. STP) destination Ethernet addresses. if forward_bpdu is false, |
707 | * the NORMAL action will drop these frames. */ | |
708 | void | |
709 | ofproto_set_forward_bpdu(struct ofproto *ofproto, bool forward_bpdu) | |
710 | { | |
711 | bool old_val = ofproto->forward_bpdu; | |
712 | ofproto->forward_bpdu = forward_bpdu; | |
713 | if (old_val != ofproto->forward_bpdu) { | |
714 | if (ofproto->ofproto_class->forward_bpdu_changed) { | |
715 | ofproto->ofproto_class->forward_bpdu_changed(ofproto); | |
716 | } | |
b53055f4 | 717 | } |
8402c74b SS |
718 | } |
719 | ||
e764773c | 720 | /* Sets the MAC aging timeout for the OFPP_NORMAL action on 'ofproto' to |
c4069512 BP |
721 | * 'idle_time', in seconds, and the maximum number of MAC table entries to |
722 | * 'max_entries'. */ | |
e764773c | 723 | void |
c4069512 BP |
724 | ofproto_set_mac_table_config(struct ofproto *ofproto, unsigned idle_time, |
725 | size_t max_entries) | |
e764773c | 726 | { |
c4069512 BP |
727 | if (ofproto->ofproto_class->set_mac_table_config) { |
728 | ofproto->ofproto_class->set_mac_table_config(ofproto, idle_time, | |
729 | max_entries); | |
e764773c BP |
730 | } |
731 | } | |
732 | ||
7c38d0a5 FL |
733 | /* Multicast snooping configuration. */ |
734 | ||
735 | /* Configures multicast snooping on 'ofproto' using the settings | |
736 | * defined in 's'. If 's' is NULL, disables multicast snooping. | |
737 | * | |
738 | * Returns 0 if successful, otherwise a positive errno value. */ | |
739 | int | |
740 | ofproto_set_mcast_snooping(struct ofproto *ofproto, | |
741 | const struct ofproto_mcast_snooping_settings *s) | |
742 | { | |
743 | return (ofproto->ofproto_class->set_mcast_snooping | |
744 | ? ofproto->ofproto_class->set_mcast_snooping(ofproto, s) | |
745 | : EOPNOTSUPP); | |
746 | } | |
747 | ||
8e04a33f | 748 | /* Configures multicast snooping flood settings on 'ofp_port' of 'ofproto'. |
7c38d0a5 FL |
749 | * |
750 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
751 | int | |
8e04a33f FL |
752 | ofproto_port_set_mcast_snooping(struct ofproto *ofproto, void *aux, |
753 | const struct ofproto_mcast_snooping_port_settings *s) | |
7c38d0a5 FL |
754 | { |
755 | return (ofproto->ofproto_class->set_mcast_snooping_port | |
8e04a33f | 756 | ? ofproto->ofproto_class->set_mcast_snooping_port(ofproto, aux, s) |
7c38d0a5 FL |
757 | : EOPNOTSUPP); |
758 | } | |
759 | ||
f2eee189 | 760 | void |
d4f6865c | 761 | ofproto_type_set_config(const char *datapath_type, const struct smap *cfg) |
f2eee189 | 762 | { |
d4f6865c DDP |
763 | const struct ofproto_class *class; |
764 | ||
765 | datapath_type = ofproto_normalize_type(datapath_type); | |
766 | class = ofproto_class_find__(datapath_type); | |
767 | ||
768 | if (class->type_set_config) { | |
769 | class->type_set_config(datapath_type, cfg); | |
770 | } | |
f2eee189 AW |
771 | } |
772 | ||
448a4b2f | 773 | void |
30ea0da7 | 774 | ofproto_set_threads(int n_handlers_, int n_revalidators_) |
448a4b2f | 775 | { |
e79a6c83 EJ |
776 | int threads = MAX(count_cpu_cores(), 2); |
777 | ||
30ea0da7 GS |
778 | n_revalidators = MAX(n_revalidators_, 0); |
779 | n_handlers = MAX(n_handlers_, 0); | |
e79a6c83 EJ |
780 | |
781 | if (!n_revalidators) { | |
782 | n_revalidators = n_handlers | |
783 | ? MAX(threads - (int) n_handlers, 1) | |
784 | : threads / 4 + 1; | |
785 | } | |
786 | ||
787 | if (!n_handlers) { | |
788 | n_handlers = MAX(threads - (int) n_revalidators, 1); | |
789 | } | |
448a4b2f AW |
790 | } |
791 | ||
8b6ff729 BP |
792 | void |
793 | ofproto_set_dp_desc(struct ofproto *p, const char *dp_desc) | |
794 | { | |
795 | free(p->dp_desc); | |
2225c0b9 | 796 | p->dp_desc = nullable_xstrdup(dp_desc); |
8b6ff729 BP |
797 | } |
798 | ||
064af421 | 799 | int |
81e2083f | 800 | ofproto_set_snoops(struct ofproto *ofproto, const struct sset *snoops) |
064af421 | 801 | { |
19a87e36 | 802 | return connmgr_set_snoops(ofproto->connmgr, snoops); |
064af421 BP |
803 | } |
804 | ||
805 | int | |
0193b2af JG |
806 | ofproto_set_netflow(struct ofproto *ofproto, |
807 | const struct netflow_options *nf_options) | |
064af421 | 808 | { |
abe529af BP |
809 | if (nf_options && sset_is_empty(&nf_options->collectors)) { |
810 | nf_options = NULL; | |
811 | } | |
812 | ||
813 | if (ofproto->ofproto_class->set_netflow) { | |
814 | return ofproto->ofproto_class->set_netflow(ofproto, nf_options); | |
064af421 | 815 | } else { |
abe529af | 816 | return nf_options ? EOPNOTSUPP : 0; |
064af421 BP |
817 | } |
818 | } | |
819 | ||
abe529af | 820 | int |
72b06300 BP |
821 | ofproto_set_sflow(struct ofproto *ofproto, |
822 | const struct ofproto_sflow_options *oso) | |
823 | { | |
abe529af BP |
824 | if (oso && sset_is_empty(&oso->targets)) { |
825 | oso = NULL; | |
826 | } | |
72b06300 | 827 | |
abe529af BP |
828 | if (ofproto->ofproto_class->set_sflow) { |
829 | return ofproto->ofproto_class->set_sflow(ofproto, oso); | |
72b06300 | 830 | } else { |
abe529af | 831 | return oso ? EOPNOTSUPP : 0; |
72b06300 BP |
832 | } |
833 | } | |
29089a54 RL |
834 | |
835 | int | |
836 | ofproto_set_ipfix(struct ofproto *ofproto, | |
837 | const struct ofproto_ipfix_bridge_exporter_options *bo, | |
838 | const struct ofproto_ipfix_flow_exporter_options *fo, | |
839 | size_t n_fo) | |
840 | { | |
841 | if (ofproto->ofproto_class->set_ipfix) { | |
842 | return ofproto->ofproto_class->set_ipfix(ofproto, bo, fo, n_fo); | |
843 | } else { | |
844 | return (bo || fo) ? EOPNOTSUPP : 0; | |
845 | } | |
846 | } | |
40358701 | 847 | |
fb8f22c1 BY |
848 | static int |
849 | ofproto_get_ipfix_stats(struct ofproto *ofproto, | |
850 | bool bridge_ipfix, | |
851 | struct ovs_list *replies) | |
852 | { | |
853 | int error; | |
854 | ||
855 | if (ofproto->ofproto_class->get_ipfix_stats) { | |
856 | error = ofproto->ofproto_class->get_ipfix_stats(ofproto, | |
857 | bridge_ipfix, | |
858 | replies); | |
859 | } else { | |
860 | error = EOPNOTSUPP; | |
861 | } | |
862 | ||
863 | return error; | |
864 | } | |
865 | ||
866 | static enum ofperr | |
867 | handle_ipfix_bridge_stats_request(struct ofconn *ofconn, | |
868 | const struct ofp_header *request) | |
869 | { | |
870 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
871 | struct ovs_list replies; | |
872 | enum ofperr error; | |
873 | ||
874 | ofpmp_init(&replies, request); | |
875 | error = ofproto_get_ipfix_stats(ofproto, true, &replies); | |
876 | ||
877 | if (!error) { | |
878 | ofconn_send_replies(ofconn, &replies); | |
879 | } else { | |
880 | ofpbuf_list_delete(&replies); | |
881 | } | |
882 | ||
883 | return error; | |
884 | } | |
885 | ||
886 | static enum ofperr | |
887 | handle_ipfix_flow_stats_request(struct ofconn *ofconn, | |
888 | const struct ofp_header *request) | |
889 | { | |
890 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
891 | struct ovs_list replies; | |
892 | enum ofperr error; | |
893 | ||
894 | ofpmp_init(&replies, request); | |
895 | error = ofproto_get_ipfix_stats(ofproto, false, &replies); | |
896 | ||
897 | if (!error) { | |
898 | ofconn_send_replies(ofconn, &replies); | |
899 | } else { | |
900 | ofpbuf_list_delete(&replies); | |
901 | } | |
902 | ||
903 | return error; | |
904 | } | |
905 | ||
2a7c4805 JP |
906 | static enum ofperr |
907 | handle_nxt_ct_flush_zone(struct ofconn *ofconn, const struct ofp_header *oh) | |
908 | { | |
909 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
910 | const struct nx_zone_id *nzi = ofpmsg_body(oh); | |
911 | ||
912 | if (!is_all_zeros(nzi->zero, sizeof nzi->zero)) { | |
913 | return OFPERR_NXBRC_MUST_BE_ZERO; | |
914 | } | |
915 | ||
916 | uint16_t zone = ntohs(nzi->zone_id); | |
917 | if (ofproto->ofproto_class->ct_flush) { | |
918 | ofproto->ofproto_class->ct_flush(ofproto, &zone); | |
919 | } else { | |
920 | return EOPNOTSUPP; | |
921 | } | |
922 | ||
923 | return 0; | |
924 | } | |
925 | ||
40358701 GS |
926 | void |
927 | ofproto_set_flow_restore_wait(bool flow_restore_wait_db) | |
928 | { | |
929 | flow_restore_wait = flow_restore_wait_db; | |
930 | } | |
931 | ||
932 | bool | |
933 | ofproto_get_flow_restore_wait(void) | |
934 | { | |
935 | return flow_restore_wait; | |
936 | } | |
937 | ||
e7934396 | 938 | \f |
21f7563c JP |
939 | /* Spanning Tree Protocol (STP) configuration. */ |
940 | ||
941 | /* Configures STP on 'ofproto' using the settings defined in 's'. If | |
942 | * 's' is NULL, disables STP. | |
943 | * | |
944 | * Returns 0 if successful, otherwise a positive errno value. */ | |
945 | int | |
946 | ofproto_set_stp(struct ofproto *ofproto, | |
947 | const struct ofproto_stp_settings *s) | |
948 | { | |
949 | return (ofproto->ofproto_class->set_stp | |
950 | ? ofproto->ofproto_class->set_stp(ofproto, s) | |
951 | : EOPNOTSUPP); | |
952 | } | |
953 | ||
954 | /* Retrieves STP status of 'ofproto' and stores it in 's'. If the | |
955 | * 'enabled' member of 's' is false, then the other members are not | |
956 | * meaningful. | |
957 | * | |
958 | * Returns 0 if successful, otherwise a positive errno value. */ | |
959 | int | |
960 | ofproto_get_stp_status(struct ofproto *ofproto, | |
961 | struct ofproto_stp_status *s) | |
962 | { | |
963 | return (ofproto->ofproto_class->get_stp_status | |
964 | ? ofproto->ofproto_class->get_stp_status(ofproto, s) | |
965 | : EOPNOTSUPP); | |
966 | } | |
967 | ||
968 | /* Configures STP on 'ofp_port' of 'ofproto' using the settings defined | |
969 | * in 's'. The caller is responsible for assigning STP port numbers | |
970 | * (using the 'port_num' member in the range of 1 through 255, inclusive) | |
971 | * and ensuring there are no duplicates. If the 's' is NULL, then STP | |
972 | * is disabled on the port. | |
973 | * | |
974 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
975 | int | |
4e022ec0 | 976 | ofproto_port_set_stp(struct ofproto *ofproto, ofp_port_t ofp_port, |
21f7563c JP |
977 | const struct ofproto_port_stp_settings *s) |
978 | { | |
979 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
980 | if (!ofport) { | |
94783c7c | 981 | VLOG_WARN("%s: cannot configure STP on nonexistent port %"PRIu32, |
21f7563c JP |
982 | ofproto->name, ofp_port); |
983 | return ENODEV; | |
984 | } | |
985 | ||
986 | return (ofproto->ofproto_class->set_stp_port | |
987 | ? ofproto->ofproto_class->set_stp_port(ofport, s) | |
988 | : EOPNOTSUPP); | |
989 | } | |
990 | ||
991 | /* Retrieves STP port status of 'ofp_port' on 'ofproto' and stores it in | |
992 | * 's'. If the 'enabled' member in 's' is false, then the other members | |
993 | * are not meaningful. | |
994 | * | |
995 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
996 | int | |
4e022ec0 | 997 | ofproto_port_get_stp_status(struct ofproto *ofproto, ofp_port_t ofp_port, |
21f7563c JP |
998 | struct ofproto_port_stp_status *s) |
999 | { | |
1000 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1001 | if (!ofport) { | |
b0a5c43b | 1002 | VLOG_WARN_RL(&rl, "%s: cannot get STP status on nonexistent " |
94783c7c | 1003 | "port %"PRIu32, ofproto->name, ofp_port); |
21f7563c JP |
1004 | return ENODEV; |
1005 | } | |
1006 | ||
1007 | return (ofproto->ofproto_class->get_stp_port_status | |
1008 | ? ofproto->ofproto_class->get_stp_port_status(ofport, s) | |
1009 | : EOPNOTSUPP); | |
1010 | } | |
fd28ce3a JS |
1011 | |
1012 | /* Retrieves STP port statistics of 'ofp_port' on 'ofproto' and stores it in | |
1013 | * 's'. If the 'enabled' member in 's' is false, then the other members | |
1014 | * are not meaningful. | |
1015 | * | |
1016 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
1017 | int | |
1018 | ofproto_port_get_stp_stats(struct ofproto *ofproto, ofp_port_t ofp_port, | |
1019 | struct ofproto_port_stp_stats *s) | |
1020 | { | |
1021 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1022 | if (!ofport) { | |
1023 | VLOG_WARN_RL(&rl, "%s: cannot get STP stats on nonexistent " | |
94783c7c | 1024 | "port %"PRIu32, ofproto->name, ofp_port); |
fd28ce3a JS |
1025 | return ENODEV; |
1026 | } | |
1027 | ||
1028 | return (ofproto->ofproto_class->get_stp_port_stats | |
1029 | ? ofproto->ofproto_class->get_stp_port_stats(ofport, s) | |
1030 | : EOPNOTSUPP); | |
1031 | } | |
9efd308e DV |
1032 | |
1033 | /* Rapid Spanning Tree Protocol (RSTP) configuration. */ | |
1034 | ||
1035 | /* Configures RSTP on 'ofproto' using the settings defined in 's'. If | |
1036 | * 's' is NULL, disables RSTP. | |
1037 | * | |
1038 | * Returns 0 if successful, otherwise a positive errno value. */ | |
1039 | int | |
1040 | ofproto_set_rstp(struct ofproto *ofproto, | |
1041 | const struct ofproto_rstp_settings *s) | |
1042 | { | |
1043 | if (!ofproto->ofproto_class->set_rstp) { | |
1044 | return EOPNOTSUPP; | |
1045 | } | |
1046 | ofproto->ofproto_class->set_rstp(ofproto, s); | |
1047 | return 0; | |
1048 | } | |
1049 | ||
1050 | /* Retrieves RSTP status of 'ofproto' and stores it in 's'. If the | |
1051 | * 'enabled' member of 's' is false, then the other members are not | |
1052 | * meaningful. | |
1053 | * | |
1054 | * Returns 0 if successful, otherwise a positive errno value. */ | |
1055 | int | |
1056 | ofproto_get_rstp_status(struct ofproto *ofproto, | |
1057 | struct ofproto_rstp_status *s) | |
1058 | { | |
1059 | if (!ofproto->ofproto_class->get_rstp_status) { | |
1060 | return EOPNOTSUPP; | |
1061 | } | |
1062 | ofproto->ofproto_class->get_rstp_status(ofproto, s); | |
1063 | return 0; | |
1064 | } | |
1065 | ||
1066 | /* Configures RSTP on 'ofp_port' of 'ofproto' using the settings defined | |
1067 | * in 's'. The caller is responsible for assigning RSTP port numbers | |
1068 | * (using the 'port_num' member in the range of 1 through 255, inclusive) | |
1069 | * and ensuring there are no duplicates. If the 's' is NULL, then RSTP | |
1070 | * is disabled on the port. | |
1071 | * | |
1072 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
1073 | int | |
1074 | ofproto_port_set_rstp(struct ofproto *ofproto, ofp_port_t ofp_port, | |
1075 | const struct ofproto_port_rstp_settings *s) | |
1076 | { | |
1077 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1078 | if (!ofport) { | |
94783c7c | 1079 | VLOG_WARN("%s: cannot configure RSTP on nonexistent port %"PRIu32, |
9efd308e DV |
1080 | ofproto->name, ofp_port); |
1081 | return ENODEV; | |
1082 | } | |
1083 | ||
1084 | if (!ofproto->ofproto_class->set_rstp_port) { | |
1085 | return EOPNOTSUPP; | |
1086 | } | |
1087 | ofproto->ofproto_class->set_rstp_port(ofport, s); | |
1088 | return 0; | |
1089 | } | |
1090 | ||
1091 | /* Retrieves RSTP port status of 'ofp_port' on 'ofproto' and stores it in | |
1092 | * 's'. If the 'enabled' member in 's' is false, then the other members | |
1093 | * are not meaningful. | |
1094 | * | |
1095 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
1096 | int | |
1097 | ofproto_port_get_rstp_status(struct ofproto *ofproto, ofp_port_t ofp_port, | |
1098 | struct ofproto_port_rstp_status *s) | |
1099 | { | |
1100 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1101 | if (!ofport) { | |
1102 | VLOG_WARN_RL(&rl, "%s: cannot get RSTP status on nonexistent " | |
94783c7c | 1103 | "port %"PRIu32, ofproto->name, ofp_port); |
9efd308e DV |
1104 | return ENODEV; |
1105 | } | |
1106 | ||
1107 | if (!ofproto->ofproto_class->get_rstp_port_status) { | |
1108 | return EOPNOTSUPP; | |
1109 | } | |
1110 | ofproto->ofproto_class->get_rstp_port_status(ofport, s); | |
1111 | return 0; | |
1112 | } | |
21f7563c | 1113 | \f |
8b36f51e EJ |
1114 | /* Queue DSCP configuration. */ |
1115 | ||
1116 | /* Registers meta-data associated with the 'n_qdscp' Qualities of Service | |
1117 | * 'queues' attached to 'ofport'. This data is not intended to be sufficient | |
1118 | * to implement QoS. Instead, it is used to implement features which require | |
1119 | * knowledge of what queues exist on a port, and some basic information about | |
1120 | * them. | |
1121 | * | |
1122 | * Returns 0 if successful, otherwise a positive errno value. */ | |
1123 | int | |
4e022ec0 | 1124 | ofproto_port_set_queues(struct ofproto *ofproto, ofp_port_t ofp_port, |
8b36f51e EJ |
1125 | const struct ofproto_port_queue *queues, |
1126 | size_t n_queues) | |
1127 | { | |
1128 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1129 | ||
1130 | if (!ofport) { | |
94783c7c | 1131 | VLOG_WARN("%s: cannot set queues on nonexistent port %"PRIu32, |
8b36f51e EJ |
1132 | ofproto->name, ofp_port); |
1133 | return ENODEV; | |
1134 | } | |
1135 | ||
1136 | return (ofproto->ofproto_class->set_queues | |
1137 | ? ofproto->ofproto_class->set_queues(ofport, queues, n_queues) | |
1138 | : EOPNOTSUPP); | |
1139 | } | |
1140 | \f | |
0477baa9 DF |
1141 | /* LLDP configuration. */ |
1142 | void | |
1143 | ofproto_port_set_lldp(struct ofproto *ofproto, | |
1144 | ofp_port_t ofp_port, | |
1145 | const struct smap *cfg) | |
1146 | { | |
1147 | struct ofport *ofport; | |
1148 | int error; | |
1149 | ||
1150 | ofport = ofproto_get_port(ofproto, ofp_port); | |
1151 | if (!ofport) { | |
94783c7c | 1152 | VLOG_WARN("%s: cannot configure LLDP on nonexistent port %"PRIu32, |
0477baa9 DF |
1153 | ofproto->name, ofp_port); |
1154 | return; | |
1155 | } | |
1156 | error = (ofproto->ofproto_class->set_lldp | |
1157 | ? ofproto->ofproto_class->set_lldp(ofport, cfg) | |
1158 | : EOPNOTSUPP); | |
1159 | if (error) { | |
94783c7c | 1160 | VLOG_WARN("%s: lldp configuration on port %"PRIu32" (%s) failed (%s)", |
0477baa9 DF |
1161 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), |
1162 | ovs_strerror(error)); | |
1163 | } | |
1164 | } | |
1165 | ||
1166 | int | |
1167 | ofproto_set_aa(struct ofproto *ofproto, void *aux OVS_UNUSED, | |
1168 | const struct aa_settings *s) | |
1169 | { | |
1170 | if (!ofproto->ofproto_class->set_aa) { | |
1171 | return EOPNOTSUPP; | |
1172 | } | |
1173 | ofproto->ofproto_class->set_aa(ofproto, s); | |
1174 | return 0; | |
1175 | } | |
1176 | ||
1177 | int | |
1178 | ofproto_aa_mapping_register(struct ofproto *ofproto, void *aux, | |
1179 | const struct aa_mapping_settings *s) | |
1180 | { | |
1181 | if (!ofproto->ofproto_class->aa_mapping_set) { | |
1182 | return EOPNOTSUPP; | |
1183 | } | |
1184 | ofproto->ofproto_class->aa_mapping_set(ofproto, aux, s); | |
1185 | return 0; | |
1186 | } | |
1187 | ||
1188 | int | |
1189 | ofproto_aa_mapping_unregister(struct ofproto *ofproto, void *aux) | |
1190 | { | |
1191 | if (!ofproto->ofproto_class->aa_mapping_unset) { | |
1192 | return EOPNOTSUPP; | |
1193 | } | |
1194 | ofproto->ofproto_class->aa_mapping_unset(ofproto, aux); | |
1195 | return 0; | |
1196 | } | |
1197 | ||
1198 | int | |
1199 | ofproto_aa_vlan_get_queued(struct ofproto *ofproto, | |
1200 | struct ovs_list *list) | |
1201 | { | |
1202 | if (!ofproto->ofproto_class->aa_vlan_get_queued) { | |
1203 | return EOPNOTSUPP; | |
1204 | } | |
1205 | ofproto->ofproto_class->aa_vlan_get_queued(ofproto, list); | |
1206 | return 0; | |
1207 | } | |
1208 | ||
1209 | unsigned int | |
1210 | ofproto_aa_vlan_get_queue_size(struct ofproto *ofproto) | |
1211 | { | |
1212 | if (!ofproto->ofproto_class->aa_vlan_get_queue_size) { | |
1213 | return EOPNOTSUPP; | |
1214 | } | |
1215 | return ofproto->ofproto_class->aa_vlan_get_queue_size(ofproto); | |
1216 | } | |
1217 | ||
e7934396 BP |
1218 | /* Connectivity Fault Management configuration. */ |
1219 | ||
892815f5 | 1220 | /* Clears the CFM configuration from 'ofp_port' on 'ofproto'. */ |
e7934396 | 1221 | void |
4e022ec0 | 1222 | ofproto_port_clear_cfm(struct ofproto *ofproto, ofp_port_t ofp_port) |
e7934396 | 1223 | { |
abe529af BP |
1224 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1225 | if (ofport && ofproto->ofproto_class->set_cfm) { | |
a5610457 | 1226 | ofproto->ofproto_class->set_cfm(ofport, NULL); |
e7934396 BP |
1227 | } |
1228 | } | |
72b06300 | 1229 | |
892815f5 | 1230 | /* Configures connectivity fault management on 'ofp_port' in 'ofproto'. Takes |
93b8df38 EJ |
1231 | * basic configuration from the configuration members in 'cfm', and the remote |
1232 | * maintenance point ID from remote_mpid. Ignores the statistics members of | |
1233 | * 'cfm'. | |
e7934396 | 1234 | * |
892815f5 | 1235 | * This function has no effect if 'ofproto' does not have a port 'ofp_port'. */ |
e7934396 | 1236 | void |
4e022ec0 | 1237 | ofproto_port_set_cfm(struct ofproto *ofproto, ofp_port_t ofp_port, |
a5610457 | 1238 | const struct cfm_settings *s) |
e7934396 BP |
1239 | { |
1240 | struct ofport *ofport; | |
abe529af | 1241 | int error; |
e7934396 | 1242 | |
abe529af | 1243 | ofport = ofproto_get_port(ofproto, ofp_port); |
e7934396 | 1244 | if (!ofport) { |
94783c7c | 1245 | VLOG_WARN("%s: cannot configure CFM on nonexistent port %"PRIu32, |
892815f5 | 1246 | ofproto->name, ofp_port); |
e7934396 BP |
1247 | return; |
1248 | } | |
1249 | ||
93b8df38 EJ |
1250 | /* XXX: For configuration simplicity, we only support one remote_mpid |
1251 | * outside of the CFM module. It's not clear if this is the correct long | |
1252 | * term solution or not. */ | |
abe529af | 1253 | error = (ofproto->ofproto_class->set_cfm |
a5610457 | 1254 | ? ofproto->ofproto_class->set_cfm(ofport, s) |
abe529af BP |
1255 | : EOPNOTSUPP); |
1256 | if (error) { | |
94783c7c | 1257 | VLOG_WARN("%s: CFM configuration on port %"PRIu32" (%s) failed (%s)", |
abe529af | 1258 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), |
10a89ef0 | 1259 | ovs_strerror(error)); |
e7934396 | 1260 | } |
e7934396 | 1261 | } |
e7934396 | 1262 | |
ccc09689 EJ |
1263 | /* Configures BFD on 'ofp_port' in 'ofproto'. This function has no effect if |
1264 | * 'ofproto' does not have a port 'ofp_port'. */ | |
1265 | void | |
4e022ec0 | 1266 | ofproto_port_set_bfd(struct ofproto *ofproto, ofp_port_t ofp_port, |
ccc09689 EJ |
1267 | const struct smap *cfg) |
1268 | { | |
1269 | struct ofport *ofport; | |
1270 | int error; | |
1271 | ||
1272 | ofport = ofproto_get_port(ofproto, ofp_port); | |
1273 | if (!ofport) { | |
94783c7c | 1274 | VLOG_WARN("%s: cannot configure bfd on nonexistent port %"PRIu32, |
ccc09689 | 1275 | ofproto->name, ofp_port); |
e8999bdc | 1276 | return; |
ccc09689 EJ |
1277 | } |
1278 | ||
1279 | error = (ofproto->ofproto_class->set_bfd | |
1280 | ? ofproto->ofproto_class->set_bfd(ofport, cfg) | |
1281 | : EOPNOTSUPP); | |
1282 | if (error) { | |
94783c7c | 1283 | VLOG_WARN("%s: bfd configuration on port %"PRIu32" (%s) failed (%s)", |
ccc09689 | 1284 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), |
10a89ef0 | 1285 | ovs_strerror(error)); |
ccc09689 EJ |
1286 | } |
1287 | } | |
1288 | ||
8f5514fe AW |
1289 | /* Checks the status change of BFD on 'ofport'. |
1290 | * | |
1291 | * Returns true if 'ofproto_class' does not support 'bfd_status_changed'. */ | |
1292 | bool | |
1293 | ofproto_port_bfd_status_changed(struct ofproto *ofproto, ofp_port_t ofp_port) | |
1294 | { | |
1295 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1296 | return (ofport && ofproto->ofproto_class->bfd_status_changed | |
1297 | ? ofproto->ofproto_class->bfd_status_changed(ofport) | |
1298 | : true); | |
1299 | } | |
1300 | ||
88bf179a | 1301 | /* Populates 'status' with the status of BFD on 'ofport'. Returns 0 on |
8f5514fe AW |
1302 | * success. Returns a positive errno otherwise. Has no effect if 'ofp_port' |
1303 | * is not an OpenFlow port in 'ofproto'. | |
88bf179a AW |
1304 | * |
1305 | * The caller must provide and own '*status'. */ | |
ccc09689 | 1306 | int |
4e022ec0 | 1307 | ofproto_port_get_bfd_status(struct ofproto *ofproto, ofp_port_t ofp_port, |
ccc09689 EJ |
1308 | struct smap *status) |
1309 | { | |
1310 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1311 | return (ofport && ofproto->ofproto_class->get_bfd_status | |
1312 | ? ofproto->ofproto_class->get_bfd_status(ofport, status) | |
1313 | : EOPNOTSUPP); | |
1314 | } | |
1315 | ||
fa066f01 BP |
1316 | /* Checks the status of LACP negotiation for 'ofp_port' within ofproto. |
1317 | * Returns 1 if LACP partner information for 'ofp_port' is up-to-date, | |
1318 | * 0 if LACP partner information is not current (generally indicating a | |
1319 | * connectivity problem), or -1 if LACP is not enabled on 'ofp_port'. */ | |
1320 | int | |
4e022ec0 | 1321 | ofproto_port_is_lacp_current(struct ofproto *ofproto, ofp_port_t ofp_port) |
fa066f01 | 1322 | { |
abe529af BP |
1323 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1324 | return (ofport && ofproto->ofproto_class->port_is_lacp_current | |
1325 | ? ofproto->ofproto_class->port_is_lacp_current(ofport) | |
fa066f01 | 1326 | : -1); |
e7934396 | 1327 | } |
50b9699f NM |
1328 | |
1329 | int | |
1330 | ofproto_port_get_lacp_stats(const struct ofport *port, struct lacp_slave_stats *stats) | |
1331 | { | |
1332 | struct ofproto *ofproto = port->ofproto; | |
1333 | int error; | |
1334 | ||
1335 | if (ofproto->ofproto_class->port_get_lacp_stats) { | |
1336 | error = ofproto->ofproto_class->port_get_lacp_stats(port, stats); | |
1337 | } else { | |
1338 | error = EOPNOTSUPP; | |
1339 | } | |
1340 | ||
1341 | return error; | |
1342 | } | |
e7934396 | 1343 | \f |
fa066f01 | 1344 | /* Bundles. */ |
e7934396 | 1345 | |
abe529af BP |
1346 | /* Registers a "bundle" associated with client data pointer 'aux' in 'ofproto'. |
1347 | * A bundle is the same concept as a Port in OVSDB, that is, it consists of one | |
1348 | * or more "slave" devices (Interfaces, in OVSDB) along with a VLAN | |
1349 | * configuration plus, if there is more than one slave, a bonding | |
1350 | * configuration. | |
1351 | * | |
1352 | * If 'aux' is already registered then this function updates its configuration | |
1353 | * to 's'. Otherwise, this function registers a new bundle. | |
1354 | * | |
1355 | * Bundles only affect the NXAST_AUTOPATH action and output to the OFPP_NORMAL | |
1356 | * port. */ | |
1357 | int | |
1358 | ofproto_bundle_register(struct ofproto *ofproto, void *aux, | |
1359 | const struct ofproto_bundle_settings *s) | |
fa066f01 | 1360 | { |
abe529af BP |
1361 | return (ofproto->ofproto_class->bundle_set |
1362 | ? ofproto->ofproto_class->bundle_set(ofproto, aux, s) | |
1363 | : EOPNOTSUPP); | |
fa066f01 BP |
1364 | } |
1365 | ||
abe529af BP |
1366 | /* Unregisters the bundle registered on 'ofproto' with auxiliary data 'aux'. |
1367 | * If no such bundle has been registered, this has no effect. */ | |
1368 | int | |
1369 | ofproto_bundle_unregister(struct ofproto *ofproto, void *aux) | |
e7934396 | 1370 | { |
abe529af | 1371 | return ofproto_bundle_register(ofproto, aux, NULL); |
e7934396 | 1372 | } |
fa066f01 | 1373 | |
e7934396 | 1374 | \f |
abe529af BP |
1375 | /* Registers a mirror associated with client data pointer 'aux' in 'ofproto'. |
1376 | * If 'aux' is already registered then this function updates its configuration | |
c06bba01 | 1377 | * to 's'. Otherwise, this function registers a new mirror. */ |
abe529af BP |
1378 | int |
1379 | ofproto_mirror_register(struct ofproto *ofproto, void *aux, | |
1380 | const struct ofproto_mirror_settings *s) | |
064af421 | 1381 | { |
abe529af BP |
1382 | return (ofproto->ofproto_class->mirror_set |
1383 | ? ofproto->ofproto_class->mirror_set(ofproto, aux, s) | |
1384 | : EOPNOTSUPP); | |
064af421 BP |
1385 | } |
1386 | ||
abe529af BP |
1387 | /* Unregisters the mirror registered on 'ofproto' with auxiliary data 'aux'. |
1388 | * If no mirror has been registered, this has no effect. */ | |
1389 | int | |
1390 | ofproto_mirror_unregister(struct ofproto *ofproto, void *aux) | |
064af421 | 1391 | { |
abe529af | 1392 | return ofproto_mirror_register(ofproto, aux, NULL); |
064af421 BP |
1393 | } |
1394 | ||
9d24de3b JP |
1395 | /* Retrieves statistics from mirror associated with client data pointer |
1396 | * 'aux' in 'ofproto'. Stores packet and byte counts in 'packets' and | |
1397 | * 'bytes', respectively. If a particular counters is not supported, | |
0477baa9 DF |
1398 | * the appropriate argument is set to UINT64_MAX. |
1399 | */ | |
9d24de3b JP |
1400 | int |
1401 | ofproto_mirror_get_stats(struct ofproto *ofproto, void *aux, | |
1402 | uint64_t *packets, uint64_t *bytes) | |
1403 | { | |
1404 | if (!ofproto->ofproto_class->mirror_get_stats) { | |
1405 | *packets = *bytes = UINT64_MAX; | |
1406 | return EOPNOTSUPP; | |
1407 | } | |
1408 | ||
1409 | return ofproto->ofproto_class->mirror_get_stats(ofproto, aux, | |
1410 | packets, bytes); | |
1411 | } | |
1412 | ||
abe529af BP |
1413 | /* Configures the VLANs whose bits are set to 1 in 'flood_vlans' as VLANs on |
1414 | * which all packets are flooded, instead of using MAC learning. If | |
1415 | * 'flood_vlans' is NULL, then MAC learning applies to all VLANs. | |
1416 | * | |
1417 | * Flood VLANs affect only the treatment of packets output to the OFPP_NORMAL | |
1418 | * port. */ | |
1419 | int | |
1420 | ofproto_set_flood_vlans(struct ofproto *ofproto, unsigned long *flood_vlans) | |
abdfe474 | 1421 | { |
abe529af BP |
1422 | return (ofproto->ofproto_class->set_flood_vlans |
1423 | ? ofproto->ofproto_class->set_flood_vlans(ofproto, flood_vlans) | |
1424 | : EOPNOTSUPP); | |
abdfe474 JP |
1425 | } |
1426 | ||
abe529af BP |
1427 | /* Returns true if 'aux' is a registered bundle that is currently in use as the |
1428 | * output for a mirror. */ | |
1429 | bool | |
b4affc74 | 1430 | ofproto_is_mirror_output_bundle(const struct ofproto *ofproto, void *aux) |
abe529af BP |
1431 | { |
1432 | return (ofproto->ofproto_class->is_mirror_output_bundle | |
1433 | ? ofproto->ofproto_class->is_mirror_output_bundle(ofproto, aux) | |
1434 | : false); | |
1435 | } | |
1436 | \f | |
254750ce BP |
1437 | /* Configuration of OpenFlow tables. */ |
1438 | ||
1439 | /* Returns the number of OpenFlow tables in 'ofproto'. */ | |
1440 | int | |
1441 | ofproto_get_n_tables(const struct ofproto *ofproto) | |
1442 | { | |
1443 | return ofproto->n_tables; | |
1444 | } | |
1445 | ||
adcf00ba AZ |
1446 | /* Returns the number of Controller visible OpenFlow tables |
1447 | * in 'ofproto'. This number will exclude Hidden tables. | |
1448 | * This funtion's return value should be less or equal to that of | |
1449 | * ofproto_get_n_tables() . */ | |
1450 | uint8_t | |
1451 | ofproto_get_n_visible_tables(const struct ofproto *ofproto) | |
1452 | { | |
1453 | uint8_t n = ofproto->n_tables; | |
1454 | ||
1455 | /* Count only non-hidden tables in the number of tables. (Hidden tables, | |
1456 | * if present, are always at the end.) */ | |
1457 | while(n && (ofproto->tables[n - 1].flags & OFTABLE_HIDDEN)) { | |
1458 | n--; | |
1459 | } | |
1460 | ||
1461 | return n; | |
1462 | } | |
1463 | ||
254750ce BP |
1464 | /* Configures the OpenFlow table in 'ofproto' with id 'table_id' with the |
1465 | * settings from 's'. 'table_id' must be in the range 0 through the number of | |
1466 | * OpenFlow tables in 'ofproto' minus 1, inclusive. | |
1467 | * | |
1468 | * For read-only tables, only the name may be configured. */ | |
1469 | void | |
1470 | ofproto_configure_table(struct ofproto *ofproto, int table_id, | |
1471 | const struct ofproto_table_settings *s) | |
1472 | { | |
1473 | struct oftable *table; | |
1474 | ||
cb22974d | 1475 | ovs_assert(table_id >= 0 && table_id < ofproto->n_tables); |
254750ce BP |
1476 | table = &ofproto->tables[table_id]; |
1477 | ||
4e413ac8 | 1478 | oftable_set_name(table, s->name, 2); |
254750ce BP |
1479 | |
1480 | if (table->flags & OFTABLE_READONLY) { | |
1481 | return; | |
1482 | } | |
1483 | ||
f358a2cb JR |
1484 | if (classifier_set_prefix_fields(&table->cls, |
1485 | s->prefix_fields, s->n_prefix_fields)) { | |
1486 | /* XXX: Trigger revalidation. */ | |
1487 | } | |
834fe5cb BP |
1488 | |
1489 | ovs_mutex_lock(&ofproto_mutex); | |
82c22d34 BP |
1490 | unsigned int new_eviction = (s->enable_eviction |
1491 | ? table->eviction | EVICTION_CLIENT | |
1492 | : table->eviction & ~EVICTION_CLIENT); | |
1493 | oftable_configure_eviction(table, new_eviction, s->groups, s->n_groups); | |
7394b8fb | 1494 | table->max_flows = s->max_flows; |
6787a49f | 1495 | evict_rules_from_table(table); |
834fe5cb | 1496 | ovs_mutex_unlock(&ofproto_mutex); |
254750ce BP |
1497 | } |
1498 | \f | |
81e2083f BP |
1499 | bool |
1500 | ofproto_has_snoops(const struct ofproto *ofproto) | |
1501 | { | |
1502 | return connmgr_has_snoops(ofproto->connmgr); | |
1503 | } | |
1504 | ||
064af421 | 1505 | void |
81e2083f | 1506 | ofproto_get_snoops(const struct ofproto *ofproto, struct sset *snoops) |
064af421 | 1507 | { |
19a87e36 | 1508 | connmgr_get_snoops(ofproto->connmgr, snoops); |
064af421 BP |
1509 | } |
1510 | ||
a73fcd71 | 1511 | /* Deletes 'rule' from 'ofproto'. |
8037acb4 | 1512 | * |
b74cb5d8 BP |
1513 | * Within an ofproto implementation, this function allows an ofproto |
1514 | * implementation to destroy any rules that remain when its ->destruct() | |
1515 | * function is called. This function is not suitable for use elsewhere in an | |
1516 | * ofproto implementation. | |
1517 | * | |
b74cb5d8 | 1518 | * This function implements steps 4.4 and 4.5 in the section titled "Rule Life |
8b81d1ef | 1519 | * Cycle" in ofproto-provider.h. */ |
b74cb5d8 | 1520 | void |
8b81d1ef | 1521 | ofproto_rule_delete(struct ofproto *ofproto, struct rule *rule) |
15aaf599 | 1522 | OVS_EXCLUDED(ofproto_mutex) |
7ee20df1 | 1523 | { |
834fe5cb BP |
1524 | /* This skips the ofmonitor and flow-removed notifications because the |
1525 | * switch is being deleted and any OpenFlow channels have been or soon will | |
1526 | * be killed. */ | |
15aaf599 | 1527 | ovs_mutex_lock(&ofproto_mutex); |
39c94593 | 1528 | |
30d0452c | 1529 | if (rule->state == RULE_INSERTED) { |
39c94593 | 1530 | /* Make sure there is no postponed removal of the rule. */ |
44e0c35d | 1531 | ovs_assert(cls_rule_visible_in_version(&rule->cr, OVS_VERSION_MAX)); |
39c94593 | 1532 | |
46ab60bf BP |
1533 | classifier_remove_assert(&rule->ofproto->tables[rule->table_id].cls, |
1534 | &rule->cr); | |
39c94593 | 1535 | ofproto_rule_remove__(rule->ofproto, rule); |
1fc71871 JR |
1536 | if (ofproto->ofproto_class->rule_delete) { |
1537 | ofproto->ofproto_class->rule_delete(rule); | |
1538 | } | |
25010c68 JR |
1539 | |
1540 | /* This may not be the last reference to the rule. */ | |
39c94593 JR |
1541 | ofproto_rule_unref(rule); |
1542 | } | |
15aaf599 | 1543 | ovs_mutex_unlock(&ofproto_mutex); |
8037acb4 BP |
1544 | } |
1545 | ||
1546 | static void | |
1547 | ofproto_flush__(struct ofproto *ofproto) | |
15aaf599 | 1548 | OVS_EXCLUDED(ofproto_mutex) |
8037acb4 | 1549 | { |
d0918789 | 1550 | struct oftable *table; |
7ee20df1 | 1551 | |
3948503a | 1552 | /* This will flush all datapath flows. */ |
7ee20df1 BP |
1553 | if (ofproto->ofproto_class->flush) { |
1554 | ofproto->ofproto_class->flush(ofproto); | |
1555 | } | |
1556 | ||
3948503a JR |
1557 | /* XXX: There is a small race window here, where new datapath flows can be |
1558 | * created by upcall handlers based on the existing flow table. We can not | |
1559 | * call ofproto class flush while holding 'ofproto_mutex' to prevent this, | |
1560 | * as then we could deadlock on syncing with the handler threads waiting on | |
1561 | * the same mutex. */ | |
1562 | ||
15aaf599 | 1563 | ovs_mutex_lock(&ofproto_mutex); |
b772ded8 | 1564 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
802f84ff | 1565 | struct rule_collection rules; |
78c8df12 | 1566 | struct rule *rule; |
7ee20df1 | 1567 | |
5c67e4af BP |
1568 | if (table->flags & OFTABLE_HIDDEN) { |
1569 | continue; | |
1570 | } | |
1571 | ||
802f84ff JR |
1572 | rule_collection_init(&rules); |
1573 | ||
de4ad4a2 | 1574 | CLS_FOR_EACH (rule, cr, &table->cls) { |
802f84ff | 1575 | rule_collection_add(&rules, rule); |
7ee20df1 | 1576 | } |
802f84ff | 1577 | delete_flows__(&rules, OFPRR_DELETE, NULL); |
7ee20df1 | 1578 | } |
d3b84833 BP |
1579 | ofproto_group_delete_all__(ofproto); |
1580 | meter_delete_all(ofproto); | |
3948503a JR |
1581 | /* XXX: Concurrent handler threads may insert new learned flows based on |
1582 | * learn actions of the now deleted flows right after we release | |
1583 | * 'ofproto_mutex'. */ | |
15aaf599 | 1584 | ovs_mutex_unlock(&ofproto_mutex); |
7ee20df1 BP |
1585 | } |
1586 | ||
abe529af BP |
1587 | static void |
1588 | ofproto_destroy__(struct ofproto *ofproto) | |
15aaf599 | 1589 | OVS_EXCLUDED(ofproto_mutex) |
abe529af | 1590 | { |
d0918789 | 1591 | struct oftable *table; |
6c1491fb | 1592 | |
db88b35c | 1593 | cmap_destroy(&ofproto->groups); |
7395c052 | 1594 | |
6d917cd2 | 1595 | ovs_mutex_lock(&ofproto_mutex); |
abe529af | 1596 | hmap_remove(&all_ofprotos, &ofproto->hmap_node); |
6d917cd2 | 1597 | ovs_mutex_unlock(&ofproto_mutex); |
04f48a68 | 1598 | |
abe529af | 1599 | free(ofproto->name); |
955a7127 | 1600 | free(ofproto->type); |
abe529af BP |
1601 | free(ofproto->mfr_desc); |
1602 | free(ofproto->hw_desc); | |
1603 | free(ofproto->sw_desc); | |
1604 | free(ofproto->serial_desc); | |
1605 | free(ofproto->dp_desc); | |
abe529af | 1606 | hmap_destroy(&ofproto->ports); |
fdcea803 | 1607 | hmap_destroy(&ofproto->ofport_usage); |
abe529af | 1608 | shash_destroy(&ofproto->port_by_name); |
e1b1d06a | 1609 | simap_destroy(&ofproto->ofp_requests); |
6c1491fb | 1610 | |
b772ded8 | 1611 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
d0918789 | 1612 | oftable_destroy(table); |
6c1491fb BP |
1613 | } |
1614 | free(ofproto->tables); | |
fa066f01 | 1615 | |
d3b84833 BP |
1616 | hmap_destroy(&ofproto->meters); |
1617 | ||
a70436a3 YHW |
1618 | ovs_mutex_lock(&ofproto->vl_mff_map.mutex); |
1619 | mf_vl_mff_map_clear(&ofproto->vl_mff_map, true); | |
1620 | ovs_mutex_unlock(&ofproto->vl_mff_map.mutex); | |
1621 | cmap_destroy(&ofproto->vl_mff_map.cmap); | |
1622 | ovs_mutex_destroy(&ofproto->vl_mff_map.mutex); | |
1623 | tun_metadata_free(ovsrcu_get_protected(struct tun_table *, | |
1624 | &ofproto->metadata_tab)); | |
1625 | ||
1406c79b BP |
1626 | ovs_assert(hindex_is_empty(&ofproto->cookies)); |
1627 | hindex_destroy(&ofproto->cookies); | |
1628 | ||
35f48b8b BP |
1629 | ovs_assert(hmap_is_empty(&ofproto->learned_cookies)); |
1630 | hmap_destroy(&ofproto->learned_cookies); | |
1631 | ||
abe529af BP |
1632 | ofproto->ofproto_class->dealloc(ofproto); |
1633 | } | |
fa066f01 | 1634 | |
39c94593 JR |
1635 | /* Destroying rules is doubly deferred, must have 'ofproto' around for them. |
1636 | * - 1st we defer the removal of the rules from the classifier | |
1637 | * - 2nd we defer the actual destruction of the rules. */ | |
1638 | static void | |
1639 | ofproto_destroy_defer__(struct ofproto *ofproto) | |
1640 | OVS_EXCLUDED(ofproto_mutex) | |
1641 | { | |
1642 | ovsrcu_postpone(ofproto_destroy__, ofproto); | |
1643 | } | |
1644 | ||
064af421 | 1645 | void |
9aad5a5a | 1646 | ofproto_destroy(struct ofproto *p, bool del) |
15aaf599 | 1647 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 1648 | { |
ca0f572c | 1649 | struct ofport *ofport, *next_ofport; |
4ec3d7c7 | 1650 | struct ofport_usage *usage; |
064af421 BP |
1651 | |
1652 | if (!p) { | |
1653 | return; | |
1654 | } | |
1655 | ||
7ee20df1 | 1656 | ofproto_flush__(p); |
4e8e4213 | 1657 | HMAP_FOR_EACH_SAFE (ofport, next_ofport, hmap_node, &p->ports) { |
9aad5a5a | 1658 | ofport_destroy(ofport, del); |
064af421 | 1659 | } |
064af421 | 1660 | |
4ec3d7c7 | 1661 | HMAP_FOR_EACH_POP (usage, hmap_node, &p->ofport_usage) { |
fdcea803 GS |
1662 | free(usage); |
1663 | } | |
1664 | ||
fe13ccdc | 1665 | p->ofproto_class->destruct(p, del); |
58f19539 DDP |
1666 | |
1667 | /* We should not postpone this because it involves deleting a listening | |
25010c68 JR |
1668 | * socket which we may want to reopen soon. 'connmgr' may be used by other |
1669 | * threads only if they take the ofproto_mutex and read a non-NULL | |
1670 | * 'ofproto->connmgr'. */ | |
1671 | ovs_mutex_lock(&ofproto_mutex); | |
58f19539 | 1672 | connmgr_destroy(p->connmgr); |
25010c68 JR |
1673 | p->connmgr = NULL; |
1674 | ovs_mutex_unlock(&ofproto_mutex); | |
58f19539 | 1675 | |
f416c8d6 | 1676 | /* Destroying rules is deferred, must have 'ofproto' around for them. */ |
39c94593 | 1677 | ovsrcu_postpone(ofproto_destroy_defer__, p); |
064af421 BP |
1678 | } |
1679 | ||
abe529af BP |
1680 | /* Destroys the datapath with the respective 'name' and 'type'. With the Linux |
1681 | * kernel datapath, for example, this destroys the datapath in the kernel, and | |
1682 | * with the netdev-based datapath, it tears down the data structures that | |
1683 | * represent the datapath. | |
1684 | * | |
1685 | * The datapath should not be currently open as an ofproto. */ | |
064af421 | 1686 | int |
abe529af | 1687 | ofproto_delete(const char *name, const char *type) |
064af421 | 1688 | { |
abe529af BP |
1689 | const struct ofproto_class *class = ofproto_class_find__(type); |
1690 | return (!class ? EAFNOSUPPORT | |
1691 | : !class->del ? EACCES | |
1692 | : class->del(type, name)); | |
064af421 BP |
1693 | } |
1694 | ||
e9e28be3 BP |
1695 | static void |
1696 | process_port_change(struct ofproto *ofproto, int error, char *devname) | |
1697 | { | |
1698 | if (error == ENOBUFS) { | |
1699 | reinit_ports(ofproto); | |
1700 | } else if (!error) { | |
1701 | update_port(ofproto, devname); | |
1702 | free(devname); | |
1703 | } | |
1704 | } | |
1705 | ||
11a574a7 JP |
1706 | int |
1707 | ofproto_type_run(const char *datapath_type) | |
1708 | { | |
1709 | const struct ofproto_class *class; | |
1710 | int error; | |
1711 | ||
1712 | datapath_type = ofproto_normalize_type(datapath_type); | |
1713 | class = ofproto_class_find__(datapath_type); | |
1714 | ||
1715 | error = class->type_run ? class->type_run(datapath_type) : 0; | |
1716 | if (error && error != EAGAIN) { | |
1717 | VLOG_ERR_RL(&rl, "%s: type_run failed (%s)", | |
10a89ef0 | 1718 | datapath_type, ovs_strerror(error)); |
11a574a7 JP |
1719 | } |
1720 | return error; | |
1721 | } | |
1722 | ||
11a574a7 JP |
1723 | void |
1724 | ofproto_type_wait(const char *datapath_type) | |
1725 | { | |
1726 | const struct ofproto_class *class; | |
1727 | ||
1728 | datapath_type = ofproto_normalize_type(datapath_type); | |
1729 | class = ofproto_class_find__(datapath_type); | |
1730 | ||
1731 | if (class->type_wait) { | |
1732 | class->type_wait(datapath_type); | |
1733 | } | |
1734 | } | |
1735 | ||
064af421 | 1736 | int |
abe529af | 1737 | ofproto_run(struct ofproto *p) |
064af421 | 1738 | { |
064af421 | 1739 | int error; |
da4a6191 | 1740 | uint64_t new_seq; |
064af421 | 1741 | |
abe529af | 1742 | error = p->ofproto_class->run(p); |
5fcc0d00 | 1743 | if (error && error != EAGAIN) { |
10a89ef0 | 1744 | VLOG_ERR_RL(&rl, "%s: run failed (%s)", p->name, ovs_strerror(error)); |
149f577a JG |
1745 | } |
1746 | ||
448c2fa8 EJ |
1747 | /* Restore the eviction group heap invariant occasionally. */ |
1748 | if (p->eviction_group_timer < time_msec()) { | |
1749 | size_t i; | |
1750 | ||
1751 | p->eviction_group_timer = time_msec() + 1000; | |
1752 | ||
1753 | for (i = 0; i < p->n_tables; i++) { | |
1754 | struct oftable *table = &p->tables[i]; | |
1755 | struct eviction_group *evg; | |
448c2fa8 EJ |
1756 | struct rule *rule; |
1757 | ||
82c22d34 | 1758 | if (!table->eviction) { |
448c2fa8 EJ |
1759 | continue; |
1760 | } | |
1761 | ||
d79e3d70 | 1762 | if (table->n_flows > 100000) { |
1a9bb326 EJ |
1763 | static struct vlog_rate_limit count_rl = |
1764 | VLOG_RATE_LIMIT_INIT(1, 1); | |
1765 | VLOG_WARN_RL(&count_rl, "Table %"PRIuSIZE" has an excessive" | |
d79e3d70 | 1766 | " number of rules: %d", i, table->n_flows); |
1a9bb326 EJ |
1767 | } |
1768 | ||
15aaf599 | 1769 | ovs_mutex_lock(&ofproto_mutex); |
5f0476ce | 1770 | CLS_FOR_EACH (rule, cr, &table->cls) { |
6d56c1f1 K |
1771 | if (rule->idle_timeout || rule->hard_timeout) { |
1772 | if (!rule->eviction_group) { | |
1773 | eviction_group_add_rule(rule); | |
1774 | } else { | |
1775 | heap_raw_change(&rule->evg_node, | |
1776 | rule_eviction_priority(p, rule)); | |
1777 | } | |
448c2fa8 EJ |
1778 | } |
1779 | } | |
6d56c1f1 K |
1780 | |
1781 | HEAP_FOR_EACH (evg, size_node, &table->eviction_groups_by_size) { | |
1782 | heap_rebuild(&evg->rules); | |
1783 | } | |
15aaf599 | 1784 | ovs_mutex_unlock(&ofproto_mutex); |
448c2fa8 EJ |
1785 | } |
1786 | } | |
1787 | ||
5bf0e941 | 1788 | if (p->ofproto_class->port_poll) { |
7436ed80 BP |
1789 | char *devname; |
1790 | ||
5bf0e941 BP |
1791 | while ((error = p->ofproto_class->port_poll(p, &devname)) != EAGAIN) { |
1792 | process_port_change(p, error, devname); | |
064af421 | 1793 | } |
e9e28be3 | 1794 | } |
031d8bff | 1795 | |
da4a6191 JS |
1796 | new_seq = seq_read(connectivity_seq_get()); |
1797 | if (new_seq != p->change_seq) { | |
1798 | struct sset devnames; | |
1799 | const char *devname; | |
1800 | struct ofport *ofport; | |
1801 | ||
1802 | /* Update OpenFlow port status for any port whose netdev has changed. | |
1803 | * | |
1804 | * Refreshing a given 'ofport' can cause an arbitrary ofport to be | |
1805 | * destroyed, so it's not safe to update ports directly from the | |
1806 | * HMAP_FOR_EACH loop, or even to use HMAP_FOR_EACH_SAFE. Instead, we | |
1807 | * need this two-phase approach. */ | |
1808 | sset_init(&devnames); | |
1809 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
61501798 AW |
1810 | uint64_t port_change_seq; |
1811 | ||
1812 | port_change_seq = netdev_get_change_seq(ofport->netdev); | |
1813 | if (ofport->change_seq != port_change_seq) { | |
1814 | ofport->change_seq = port_change_seq; | |
1815 | sset_add(&devnames, netdev_get_name(ofport->netdev)); | |
1816 | } | |
031d8bff | 1817 | } |
da4a6191 JS |
1818 | SSET_FOR_EACH (devname, &devnames) { |
1819 | update_port(p, devname); | |
1820 | } | |
1821 | sset_destroy(&devnames); | |
1822 | ||
1823 | p->change_seq = new_seq; | |
064af421 BP |
1824 | } |
1825 | ||
834fe5cb | 1826 | connmgr_run(p->connmgr, handle_openflow); |
064af421 | 1827 | |
5fcc0d00 BP |
1828 | return error; |
1829 | } | |
1830 | ||
064af421 BP |
1831 | void |
1832 | ofproto_wait(struct ofproto *p) | |
1833 | { | |
abe529af | 1834 | p->ofproto_class->wait(p); |
5bf0e941 BP |
1835 | if (p->ofproto_class->port_poll_wait) { |
1836 | p->ofproto_class->port_poll_wait(p); | |
e7934396 | 1837 | } |
da4a6191 | 1838 | seq_wait(connectivity_seq_get(), p->change_seq); |
834fe5cb | 1839 | connmgr_wait(p->connmgr); |
064af421 BP |
1840 | } |
1841 | ||
064af421 BP |
1842 | bool |
1843 | ofproto_is_alive(const struct ofproto *p) | |
1844 | { | |
19a87e36 | 1845 | return connmgr_has_controllers(p->connmgr); |
064af421 BP |
1846 | } |
1847 | ||
0d085684 BP |
1848 | /* Adds some memory usage statistics for 'ofproto' into 'usage', for use with |
1849 | * memory_report(). */ | |
1850 | void | |
1851 | ofproto_get_memory_usage(const struct ofproto *ofproto, struct simap *usage) | |
1852 | { | |
1853 | const struct oftable *table; | |
1854 | unsigned int n_rules; | |
1855 | ||
1856 | simap_increase(usage, "ports", hmap_count(&ofproto->ports)); | |
15aaf599 | 1857 | |
0d085684 BP |
1858 | n_rules = 0; |
1859 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { | |
d79e3d70 | 1860 | n_rules += table->n_flows; |
0d085684 BP |
1861 | } |
1862 | simap_increase(usage, "rules", n_rules); | |
1863 | ||
1864 | if (ofproto->ofproto_class->get_memory_usage) { | |
1865 | ofproto->ofproto_class->get_memory_usage(ofproto, usage); | |
1866 | } | |
1867 | ||
1868 | connmgr_get_memory_usage(ofproto->connmgr, usage); | |
1869 | } | |
1870 | ||
1c030aa5 EJ |
1871 | void |
1872 | ofproto_type_get_memory_usage(const char *datapath_type, struct simap *usage) | |
1873 | { | |
1874 | const struct ofproto_class *class; | |
1875 | ||
1876 | datapath_type = ofproto_normalize_type(datapath_type); | |
1877 | class = ofproto_class_find__(datapath_type); | |
1878 | ||
1879 | if (class && class->type_get_memory_usage) { | |
1880 | class->type_get_memory_usage(datapath_type, usage); | |
1881 | } | |
1882 | } | |
1883 | ||
bffc0589 | 1884 | void |
2cdcb898 | 1885 | ofproto_get_ofproto_controller_info(const struct ofproto *ofproto, |
bffc0589 AE |
1886 | struct shash *info) |
1887 | { | |
19a87e36 | 1888 | connmgr_get_controller_info(ofproto->connmgr, info); |
bffc0589 AE |
1889 | } |
1890 | ||
1891 | void | |
1892 | ofproto_free_ofproto_controller_info(struct shash *info) | |
1893 | { | |
72ba2ed3 | 1894 | connmgr_free_controller_info(info); |
bffc0589 AE |
1895 | } |
1896 | ||
b5827b24 BP |
1897 | /* Makes a deep copy of 'old' into 'port'. */ |
1898 | void | |
1899 | ofproto_port_clone(struct ofproto_port *port, const struct ofproto_port *old) | |
1900 | { | |
1901 | port->name = xstrdup(old->name); | |
1902 | port->type = xstrdup(old->type); | |
1903 | port->ofp_port = old->ofp_port; | |
1904 | } | |
1905 | ||
1906 | /* Frees memory allocated to members of 'ofproto_port'. | |
3a6ccc8c | 1907 | * |
b5827b24 BP |
1908 | * Do not call this function on an ofproto_port obtained from |
1909 | * ofproto_port_dump_next(): that function retains ownership of the data in the | |
1910 | * ofproto_port. */ | |
1911 | void | |
1912 | ofproto_port_destroy(struct ofproto_port *ofproto_port) | |
1913 | { | |
1914 | free(ofproto_port->name); | |
1915 | free(ofproto_port->type); | |
1916 | } | |
1917 | ||
b5827b24 | 1918 | /* Initializes 'dump' to begin dumping the ports in an ofproto. |
3a6ccc8c | 1919 | * |
b5827b24 BP |
1920 | * This function provides no status indication. An error status for the entire |
1921 | * dump operation is provided when it is completed by calling | |
1922 | * ofproto_port_dump_done(). | |
1923 | */ | |
1924 | void | |
1925 | ofproto_port_dump_start(struct ofproto_port_dump *dump, | |
1926 | const struct ofproto *ofproto) | |
1927 | { | |
abe529af BP |
1928 | dump->ofproto = ofproto; |
1929 | dump->error = ofproto->ofproto_class->port_dump_start(ofproto, | |
1930 | &dump->state); | |
b5827b24 BP |
1931 | } |
1932 | ||
1933 | /* Attempts to retrieve another port from 'dump', which must have been created | |
1934 | * with ofproto_port_dump_start(). On success, stores a new ofproto_port into | |
1935 | * 'port' and returns true. On failure, returns false. | |
1936 | * | |
1937 | * Failure might indicate an actual error or merely that the last port has been | |
1938 | * dumped. An error status for the entire dump operation is provided when it | |
1939 | * is completed by calling ofproto_port_dump_done(). | |
1940 | * | |
1941 | * The ofproto owns the data stored in 'port'. It will remain valid until at | |
1942 | * least the next time 'dump' is passed to ofproto_port_dump_next() or | |
1943 | * ofproto_port_dump_done(). */ | |
1944 | bool | |
1945 | ofproto_port_dump_next(struct ofproto_port_dump *dump, | |
1946 | struct ofproto_port *port) | |
1947 | { | |
abe529af BP |
1948 | const struct ofproto *ofproto = dump->ofproto; |
1949 | ||
1950 | if (dump->error) { | |
1951 | return false; | |
1952 | } | |
b5827b24 | 1953 | |
abe529af BP |
1954 | dump->error = ofproto->ofproto_class->port_dump_next(ofproto, dump->state, |
1955 | port); | |
1956 | if (dump->error) { | |
1957 | ofproto->ofproto_class->port_dump_done(ofproto, dump->state); | |
1958 | return false; | |
b5827b24 | 1959 | } |
abe529af | 1960 | return true; |
b5827b24 BP |
1961 | } |
1962 | ||
1963 | /* Completes port table dump operation 'dump', which must have been created | |
1964 | * with ofproto_port_dump_start(). Returns 0 if the dump operation was | |
1965 | * error-free, otherwise a positive errno value describing the problem. */ | |
3a6ccc8c | 1966 | int |
b5827b24 | 1967 | ofproto_port_dump_done(struct ofproto_port_dump *dump) |
3a6ccc8c | 1968 | { |
abe529af BP |
1969 | const struct ofproto *ofproto = dump->ofproto; |
1970 | if (!dump->error) { | |
1971 | dump->error = ofproto->ofproto_class->port_dump_done(ofproto, | |
1972 | dump->state); | |
1973 | } | |
1974 | return dump->error == EOF ? 0 : dump->error; | |
b5827b24 BP |
1975 | } |
1976 | ||
c381bca5 BP |
1977 | /* Returns the type to pass to netdev_open() when 'ofproto' has a port of type |
1978 | * 'port_type', for a few special cases when a netdev type differs from a port | |
1979 | * type. For example, when using the userspace datapath, a port of type | |
1980 | * "internal" needs to be opened as "tap". | |
0aeaabc8 JP |
1981 | * |
1982 | * Returns either 'type' itself or a string literal, which must not be | |
1983 | * freed. */ | |
1984 | const char * | |
c381bca5 | 1985 | ofproto_port_open_type(const struct ofproto *ofproto, const char *port_type) |
0aeaabc8 | 1986 | { |
c381bca5 BP |
1987 | return (ofproto->ofproto_class->port_open_type |
1988 | ? ofproto->ofproto_class->port_open_type(ofproto->type, port_type) | |
0aeaabc8 JP |
1989 | : port_type); |
1990 | } | |
1991 | ||
81816a5f JP |
1992 | /* Attempts to add 'netdev' as a port on 'ofproto'. If 'ofp_portp' is |
1993 | * non-null and '*ofp_portp' is not OFPP_NONE, attempts to use that as | |
1994 | * the port's OpenFlow port number. | |
1995 | * | |
1996 | * If successful, returns 0 and sets '*ofp_portp' to the new port's | |
1997 | * OpenFlow port number (if 'ofp_portp' is non-null). On failure, | |
1998 | * returns a positive errno value and sets '*ofp_portp' to OFPP_NONE (if | |
1999 | * 'ofp_portp' is non-null). */ | |
b5827b24 BP |
2000 | int |
2001 | ofproto_port_add(struct ofproto *ofproto, struct netdev *netdev, | |
4e022ec0 | 2002 | ofp_port_t *ofp_portp) |
b5827b24 | 2003 | { |
4e022ec0 | 2004 | ofp_port_t ofp_port = ofp_portp ? *ofp_portp : OFPP_NONE; |
3a6ccc8c BP |
2005 | int error; |
2006 | ||
e1b1d06a | 2007 | error = ofproto->ofproto_class->port_add(ofproto, netdev); |
1fa24dea | 2008 | if (!error) { |
e1b1d06a JP |
2009 | const char *netdev_name = netdev_get_name(netdev); |
2010 | ||
4e022ec0 AW |
2011 | simap_put(&ofproto->ofp_requests, netdev_name, |
2012 | ofp_to_u16(ofp_port)); | |
01c77073 | 2013 | error = update_port(ofproto, netdev_name); |
1fa24dea | 2014 | } |
b5827b24 | 2015 | if (ofp_portp) { |
17f69db5 BP |
2016 | *ofp_portp = OFPP_NONE; |
2017 | if (!error) { | |
2018 | struct ofproto_port ofproto_port; | |
2019 | ||
2020 | error = ofproto_port_query_by_name(ofproto, | |
2021 | netdev_get_name(netdev), | |
2022 | &ofproto_port); | |
2023 | if (!error) { | |
2024 | *ofp_portp = ofproto_port.ofp_port; | |
2025 | ofproto_port_destroy(&ofproto_port); | |
2026 | } | |
2027 | } | |
3a6ccc8c BP |
2028 | } |
2029 | return error; | |
2030 | } | |
2031 | ||
b5827b24 BP |
2032 | /* Looks up a port named 'devname' in 'ofproto'. On success, returns 0 and |
2033 | * initializes '*port' appropriately; on failure, returns a positive errno | |
2034 | * value. | |
2035 | * | |
abe529af | 2036 | * The caller owns the data in 'ofproto_port' and must free it with |
b5827b24 BP |
2037 | * ofproto_port_destroy() when it is no longer needed. */ |
2038 | int | |
2039 | ofproto_port_query_by_name(const struct ofproto *ofproto, const char *devname, | |
2040 | struct ofproto_port *port) | |
a4e2e1f2 | 2041 | { |
b5827b24 BP |
2042 | int error; |
2043 | ||
abe529af BP |
2044 | error = ofproto->ofproto_class->port_query_by_name(ofproto, devname, port); |
2045 | if (error) { | |
2046 | memset(port, 0, sizeof *port); | |
b5827b24 BP |
2047 | } |
2048 | return error; | |
a4e2e1f2 EJ |
2049 | } |
2050 | ||
b5827b24 | 2051 | /* Deletes port number 'ofp_port' from the datapath for 'ofproto'. |
3a6ccc8c | 2052 | * Returns 0 if successful, otherwise a positive errno. */ |
064af421 | 2053 | int |
4e022ec0 | 2054 | ofproto_port_del(struct ofproto *ofproto, ofp_port_t ofp_port) |
064af421 | 2055 | { |
abe529af | 2056 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1264ec95 | 2057 | const char *name = ofport ? netdev_get_name(ofport->netdev) : "<unknown>"; |
e1b1d06a | 2058 | struct simap_node *ofp_request_node; |
3cf10406 | 2059 | int error; |
cdee00fd | 2060 | |
e1b1d06a JP |
2061 | ofp_request_node = simap_find(&ofproto->ofp_requests, name); |
2062 | if (ofp_request_node) { | |
2063 | simap_delete(&ofproto->ofp_requests, ofp_request_node); | |
2064 | } | |
2065 | ||
abe529af | 2066 | error = ofproto->ofproto_class->port_del(ofproto, ofp_port); |
892815f5 | 2067 | if (!error && ofport) { |
1264ec95 BP |
2068 | /* 'name' is the netdev's name and update_port() is going to close the |
2069 | * netdev. Just in case update_port() refers to 'name' after it | |
3a6ccc8c BP |
2070 | * destroys 'ofport', make a copy of it around the update_port() |
2071 | * call. */ | |
2072 | char *devname = xstrdup(name); | |
2073 | update_port(ofproto, devname); | |
2074 | free(devname); | |
3cf10406 BP |
2075 | } |
2076 | return error; | |
064af421 BP |
2077 | } |
2078 | ||
91364d18 IM |
2079 | /* Refreshes datapath configuration of port number 'ofp_port' in 'ofproto'. |
2080 | * | |
2081 | * This function has no effect if 'ofproto' does not have a port 'ofp_port'. */ | |
2082 | void | |
2083 | ofproto_port_set_config(struct ofproto *ofproto, ofp_port_t ofp_port, | |
2084 | const struct smap *cfg) | |
2085 | { | |
2086 | struct ofport *ofport; | |
2087 | int error; | |
2088 | ||
2089 | ofport = ofproto_get_port(ofproto, ofp_port); | |
2090 | if (!ofport) { | |
94783c7c | 2091 | VLOG_WARN("%s: cannot configure datapath on nonexistent port %"PRIu32, |
91364d18 IM |
2092 | ofproto->name, ofp_port); |
2093 | return; | |
2094 | } | |
2095 | ||
2096 | error = (ofproto->ofproto_class->port_set_config | |
2097 | ? ofproto->ofproto_class->port_set_config(ofport, cfg) | |
2098 | : EOPNOTSUPP); | |
2099 | if (error) { | |
94783c7c | 2100 | VLOG_WARN("%s: datapath configuration on port %"PRIu32 |
91364d18 IM |
2101 | " (%s) failed (%s)", |
2102 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), | |
2103 | ovs_strerror(error)); | |
2104 | } | |
2105 | } | |
2106 | ||
2107 | ||
276f6518 SH |
2108 | static void |
2109 | flow_mod_init(struct ofputil_flow_mod *fm, | |
eb391b76 | 2110 | const struct match *match, int priority, |
276f6518 SH |
2111 | const struct ofpact *ofpacts, size_t ofpacts_len, |
2112 | enum ofp_flow_mod_command command) | |
2113 | { | |
39cc5c4a | 2114 | *fm = (struct ofputil_flow_mod) { |
39cc5c4a BP |
2115 | .priority = priority, |
2116 | .table_id = 0, | |
2117 | .command = command, | |
2118 | .buffer_id = UINT32_MAX, | |
2119 | .out_port = OFPP_ANY, | |
2120 | .out_group = OFPG_ANY, | |
2121 | .ofpacts = CONST_CAST(struct ofpact *, ofpacts), | |
2122 | .ofpacts_len = ofpacts_len, | |
39cc5c4a | 2123 | }; |
6a6b7060 | 2124 | minimatch_init(&fm->match, match); |
276f6518 SH |
2125 | } |
2126 | ||
97f63e57 BP |
2127 | static int |
2128 | simple_flow_mod(struct ofproto *ofproto, | |
eb391b76 | 2129 | const struct match *match, int priority, |
97f63e57 BP |
2130 | const struct ofpact *ofpacts, size_t ofpacts_len, |
2131 | enum ofp_flow_mod_command command) | |
2132 | { | |
7338102b | 2133 | struct ofputil_flow_mod fm; |
7338102b | 2134 | flow_mod_init(&fm, match, priority, ofpacts, ofpacts_len, command); |
6a6b7060 BP |
2135 | enum ofperr error = handle_flow_mod__(ofproto, &fm, NULL); |
2136 | minimatch_destroy(&fm.match); | |
2137 | return error; | |
97f63e57 BP |
2138 | } |
2139 | ||
6c1491fb | 2140 | /* Adds a flow to OpenFlow flow table 0 in 'p' that matches 'cls_rule' and |
fa8b054f BP |
2141 | * performs the 'n_actions' actions in 'actions'. The new flow will not |
2142 | * timeout. | |
2143 | * | |
2144 | * If cls_rule->priority is in the range of priorities supported by OpenFlow | |
2145 | * (0...65535, inclusive) then the flow will be visible to OpenFlow | |
2146 | * controllers; otherwise, it will be hidden. | |
2147 | * | |
f25d0cf3 | 2148 | * The caller retains ownership of 'cls_rule' and 'ofpacts'. |
6c1491fb BP |
2149 | * |
2150 | * This is a helper function for in-band control and fail-open. */ | |
064af421 | 2151 | void |
81a76618 | 2152 | ofproto_add_flow(struct ofproto *ofproto, const struct match *match, |
eb391b76 | 2153 | int priority, |
f25d0cf3 | 2154 | const struct ofpact *ofpacts, size_t ofpacts_len) |
15aaf599 | 2155 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 2156 | { |
7ee20df1 | 2157 | const struct rule *rule; |
6f00e29b | 2158 | bool must_add; |
7ee20df1 | 2159 | |
97f63e57 BP |
2160 | /* First do a cheap check whether the rule we're looking for already exists |
2161 | * with the actions that we want. If it does, then we're done. */ | |
81a76618 | 2162 | rule = rule_from_cls_rule(classifier_find_match_exactly( |
2b7b1427 | 2163 | &ofproto->tables[0].cls, match, priority, |
44e0c35d | 2164 | OVS_VERSION_MAX)); |
6f00e29b | 2165 | if (rule) { |
dc723c44 | 2166 | const struct rule_actions *actions = rule_get_actions(rule); |
06a0f3e2 | 2167 | must_add = !ofpacts_equal(actions->ofpacts, actions->ofpacts_len, |
6f00e29b | 2168 | ofpacts, ofpacts_len); |
6f00e29b BP |
2169 | } else { |
2170 | must_add = true; | |
2171 | } | |
97f63e57 BP |
2172 | |
2173 | /* If there's no such rule or the rule doesn't have the actions we want, | |
2174 | * fall back to a executing a full flow mod. We can't optimize this at | |
2175 | * all because we didn't take enough locks above to ensure that the flow | |
2176 | * table didn't already change beneath us. */ | |
6f00e29b | 2177 | if (must_add) { |
97f63e57 BP |
2178 | simple_flow_mod(ofproto, match, priority, ofpacts, ofpacts_len, |
2179 | OFPFC_MODIFY_STRICT); | |
7ee20df1 | 2180 | } |
064af421 BP |
2181 | } |
2182 | ||
d51c8b71 JR |
2183 | /* Executes the flow modification specified in 'fm'. Returns 0 on success, or |
2184 | * an OFPERR_* OpenFlow error code on failure. | |
75a75043 | 2185 | * |
2c7ee524 | 2186 | * This is a helper function for in-band control and fail-open. */ |
d51c8b71 | 2187 | enum ofperr |
7338102b | 2188 | ofproto_flow_mod(struct ofproto *ofproto, const struct ofputil_flow_mod *fm) |
15aaf599 | 2189 | OVS_EXCLUDED(ofproto_mutex) |
75a75043 | 2190 | { |
7338102b | 2191 | return handle_flow_mod__(ofproto, fm, NULL); |
75a75043 BP |
2192 | } |
2193 | ||
6c1491fb BP |
2194 | /* Searches for a rule with matching criteria exactly equal to 'target' in |
2195 | * ofproto's table 0 and, if it finds one, deletes it. | |
2196 | * | |
2197 | * This is a helper function for in-band control and fail-open. */ | |
b20f4073 | 2198 | void |
81a76618 | 2199 | ofproto_delete_flow(struct ofproto *ofproto, |
eb391b76 | 2200 | const struct match *target, int priority) |
25010c68 | 2201 | OVS_REQUIRES(ofproto_mutex) |
064af421 | 2202 | { |
8037acb4 | 2203 | struct classifier *cls = &ofproto->tables[0].cls; |
064af421 BP |
2204 | struct rule *rule; |
2205 | ||
97f63e57 BP |
2206 | /* First do a cheap check whether the rule we're looking for has already |
2207 | * been deleted. If so, then we're done. */ | |
39c94593 | 2208 | rule = rule_from_cls_rule(classifier_find_match_exactly( |
44e0c35d | 2209 | cls, target, priority, OVS_VERSION_MAX)); |
834fe5cb BP |
2210 | if (!rule) { |
2211 | return; | |
bcf84111 | 2212 | } |
834fe5cb | 2213 | |
25010c68 JR |
2214 | struct rule_collection rules; |
2215 | ||
2216 | rule_collection_init(&rules); | |
2217 | rule_collection_add(&rules, rule); | |
2218 | delete_flows__(&rules, OFPRR_DELETE, NULL); | |
2219 | rule_collection_destroy(&rules); | |
142e1f5c BP |
2220 | } |
2221 | ||
834fe5cb BP |
2222 | /* Delete all of the flows from all of ofproto's flow tables, then reintroduce |
2223 | * the flows required by in-band control and fail-open. */ | |
142e1f5c BP |
2224 | void |
2225 | ofproto_flush_flows(struct ofproto *ofproto) | |
2226 | { | |
7ee20df1 | 2227 | COVERAGE_INC(ofproto_flush); |
834fe5cb BP |
2228 | ofproto_flush__(ofproto); |
2229 | connmgr_flushed(ofproto->connmgr); | |
064af421 BP |
2230 | } |
2231 | \f | |
2232 | static void | |
2233 | reinit_ports(struct ofproto *p) | |
2234 | { | |
abe529af | 2235 | struct ofproto_port_dump dump; |
b3c01ed3 | 2236 | struct sset devnames; |
064af421 | 2237 | struct ofport *ofport; |
abe529af | 2238 | struct ofproto_port ofproto_port; |
b3c01ed3 | 2239 | const char *devname; |
064af421 | 2240 | |
898bf89d JP |
2241 | COVERAGE_INC(ofproto_reinit_ports); |
2242 | ||
b3c01ed3 | 2243 | sset_init(&devnames); |
4e8e4213 | 2244 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { |
1264ec95 | 2245 | sset_add(&devnames, netdev_get_name(ofport->netdev)); |
064af421 | 2246 | } |
abe529af BP |
2247 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { |
2248 | sset_add(&devnames, ofproto_port.name); | |
064af421 | 2249 | } |
064af421 | 2250 | |
b3c01ed3 BP |
2251 | SSET_FOR_EACH (devname, &devnames) { |
2252 | update_port(p, devname); | |
064af421 | 2253 | } |
b3c01ed3 | 2254 | sset_destroy(&devnames); |
064af421 BP |
2255 | } |
2256 | ||
4e022ec0 | 2257 | static ofp_port_t |
e1b1d06a JP |
2258 | alloc_ofp_port(struct ofproto *ofproto, const char *netdev_name) |
2259 | { | |
4e022ec0 | 2260 | uint16_t port_idx; |
e1b1d06a | 2261 | |
4e022ec0 | 2262 | port_idx = simap_get(&ofproto->ofp_requests, netdev_name); |
430dbb14 | 2263 | port_idx = port_idx ? port_idx : UINT16_MAX; |
4e022ec0 | 2264 | |
430dbb14 | 2265 | if (port_idx >= ofproto->max_ports |
fdcea803 GS |
2266 | || ofport_get_usage(ofproto, u16_to_ofp(port_idx)) == LLONG_MAX) { |
2267 | uint16_t lru_ofport = 0, end_port_no = ofproto->alloc_port_no; | |
2268 | long long int last_used_at, lru = LLONG_MAX; | |
e1b1d06a | 2269 | |
e1b1d06a JP |
2270 | /* Search for a free OpenFlow port number. We try not to |
2271 | * immediately reuse them to prevent problems due to old | |
484c8355 BP |
2272 | * flows. |
2273 | * | |
2274 | * We limit the automatically assigned port numbers to the lower half | |
2275 | * of the port range, to reserve the upper half for assignment by | |
2276 | * controllers. */ | |
6033d9d9 | 2277 | for (;;) { |
484c8355 | 2278 | if (++ofproto->alloc_port_no >= MIN(ofproto->max_ports, 32768)) { |
fdcea803 | 2279 | ofproto->alloc_port_no = 1; |
6033d9d9 | 2280 | } |
fdcea803 GS |
2281 | last_used_at = ofport_get_usage(ofproto, |
2282 | u16_to_ofp(ofproto->alloc_port_no)); | |
2283 | if (!last_used_at) { | |
430dbb14 | 2284 | port_idx = ofproto->alloc_port_no; |
6033d9d9 | 2285 | break; |
865b26a4 GS |
2286 | } else if ( last_used_at < time_msec() - 60*60*1000) { |
2287 | /* If the port with ofport 'ofproto->alloc_port_no' was deleted | |
2288 | * more than an hour ago, consider it usable. */ | |
2289 | ofport_remove_usage(ofproto, | |
2290 | u16_to_ofp(ofproto->alloc_port_no)); | |
2291 | port_idx = ofproto->alloc_port_no; | |
2292 | break; | |
fdcea803 GS |
2293 | } else if (last_used_at < lru) { |
2294 | lru = last_used_at; | |
2295 | lru_ofport = ofproto->alloc_port_no; | |
e1b1d06a | 2296 | } |
fdcea803 | 2297 | |
430dbb14 | 2298 | if (ofproto->alloc_port_no == end_port_no) { |
fdcea803 GS |
2299 | if (lru_ofport) { |
2300 | port_idx = lru_ofport; | |
2301 | break; | |
2302 | } | |
6033d9d9 | 2303 | return OFPP_NONE; |
e1b1d06a JP |
2304 | } |
2305 | } | |
2306 | } | |
fdcea803 | 2307 | ofport_set_usage(ofproto, u16_to_ofp(port_idx), LLONG_MAX); |
4e022ec0 | 2308 | return u16_to_ofp(port_idx); |
e1b1d06a JP |
2309 | } |
2310 | ||
2311 | static void | |
fdcea803 | 2312 | dealloc_ofp_port(struct ofproto *ofproto, ofp_port_t ofp_port) |
e1b1d06a | 2313 | { |
430dbb14 | 2314 | if (ofp_to_u16(ofp_port) < ofproto->max_ports) { |
fdcea803 | 2315 | ofport_set_usage(ofproto, ofp_port, time_msec()); |
40fa9417 | 2316 | } |
e1b1d06a JP |
2317 | } |
2318 | ||
8fa5a281 HZ |
2319 | /* Opens a netdev for 'ofproto_port' in 'ofproto' and set to p_netdev, |
2320 | * or a null pointer if the netdev cannot be opened. On success, also | |
2321 | * fills in '*pp'. Returns 0 on success, or a positive error number. */ | |
2322 | static int | |
e1b1d06a JP |
2323 | ofport_open(struct ofproto *ofproto, |
2324 | struct ofproto_port *ofproto_port, | |
8fa5a281 HZ |
2325 | struct ofputil_phy_port *pp, |
2326 | struct netdev **p_netdev) | |
064af421 BP |
2327 | { |
2328 | enum netdev_flags flags; | |
064af421 | 2329 | struct netdev *netdev; |
064af421 BP |
2330 | int error; |
2331 | ||
8fa5a281 | 2332 | *p_netdev = NULL; |
18812dff | 2333 | error = netdev_open(ofproto_port->name, ofproto_port->type, &netdev); |
064af421 | 2334 | if (error) { |
94783c7c | 2335 | VLOG_WARN_RL(&rl, "%s: ignoring port %s (%"PRIu32") because netdev %s " |
064af421 | 2336 | "cannot be opened (%s)", |
fbfa2911 | 2337 | ofproto->name, |
abe529af | 2338 | ofproto_port->name, ofproto_port->ofp_port, |
10a89ef0 | 2339 | ofproto_port->name, ovs_strerror(error)); |
8fa5a281 | 2340 | return 0; |
064af421 BP |
2341 | } |
2342 | ||
e1b1d06a JP |
2343 | if (ofproto_port->ofp_port == OFPP_NONE) { |
2344 | if (!strcmp(ofproto->name, ofproto_port->name)) { | |
2345 | ofproto_port->ofp_port = OFPP_LOCAL; | |
2346 | } else { | |
8fa5a281 HZ |
2347 | ofp_port_t ofp_port = alloc_ofp_port(ofproto, |
2348 | ofproto_port->name); | |
2349 | if (ofp_port == OFPP_NONE) { | |
2350 | VLOG_WARN_RL(&rl, "%s: failed to allocated ofp port number " | |
2351 | "for %s.", ofproto->name, ofproto_port->name); | |
2352 | netdev_close(netdev); | |
2353 | return ENOSPC; | |
2354 | } | |
2355 | ofproto_port->ofp_port = ofp_port; | |
e1b1d06a JP |
2356 | } |
2357 | } | |
9e1fd49b | 2358 | pp->port_no = ofproto_port->ofp_port; |
74ff3298 | 2359 | netdev_get_etheraddr(netdev, &pp->hw_addr); |
9e1fd49b | 2360 | ovs_strlcpy(pp->name, ofproto_port->name, sizeof pp->name); |
064af421 | 2361 | netdev_get_flags(netdev, &flags); |
9e1fd49b BP |
2362 | pp->config = flags & NETDEV_UP ? 0 : OFPUTIL_PC_PORT_DOWN; |
2363 | pp->state = netdev_get_carrier(netdev) ? 0 : OFPUTIL_PS_LINK_DOWN; | |
2364 | netdev_get_features(netdev, &pp->curr, &pp->advertised, | |
2365 | &pp->supported, &pp->peer); | |
cd65125d BP |
2366 | pp->curr_speed = netdev_features_to_bps(pp->curr, 0) / 1000; |
2367 | pp->max_speed = netdev_features_to_bps(pp->supported, 0) / 1000; | |
118c4676 | 2368 | |
8fa5a281 HZ |
2369 | *p_netdev = netdev; |
2370 | return 0; | |
064af421 BP |
2371 | } |
2372 | ||
b40fc02a BP |
2373 | /* Returns true if most fields of 'a' and 'b' are equal. Differences in name |
2374 | * and port number are disregarded. */ | |
b33951b8 | 2375 | static bool |
9e1fd49b BP |
2376 | ofport_equal(const struct ofputil_phy_port *a, |
2377 | const struct ofputil_phy_port *b) | |
064af421 | 2378 | { |
9e1fd49b | 2379 | return (eth_addr_equals(a->hw_addr, b->hw_addr) |
064af421 | 2380 | && a->state == b->state |
b40fc02a | 2381 | && a->config == b->config |
064af421 BP |
2382 | && a->curr == b->curr |
2383 | && a->advertised == b->advertised | |
2384 | && a->supported == b->supported | |
9e1fd49b BP |
2385 | && a->peer == b->peer |
2386 | && a->curr_speed == b->curr_speed | |
2387 | && a->max_speed == b->max_speed); | |
064af421 BP |
2388 | } |
2389 | ||
b33951b8 BP |
2390 | /* Adds an ofport to 'p' initialized based on the given 'netdev' and 'opp'. |
2391 | * The caller must ensure that 'p' does not have a conflicting ofport (that is, | |
2392 | * one with the same name or port number). */ | |
01c77073 | 2393 | static int |
b33951b8 | 2394 | ofport_install(struct ofproto *p, |
9e1fd49b | 2395 | struct netdev *netdev, const struct ofputil_phy_port *pp) |
064af421 | 2396 | { |
b33951b8 BP |
2397 | const char *netdev_name = netdev_get_name(netdev); |
2398 | struct ofport *ofport; | |
abe529af | 2399 | int error; |
72b06300 | 2400 | |
b33951b8 | 2401 | /* Create ofport. */ |
abe529af BP |
2402 | ofport = p->ofproto_class->port_alloc(); |
2403 | if (!ofport) { | |
2404 | error = ENOMEM; | |
2405 | goto error; | |
2406 | } | |
0f7d71a5 | 2407 | ofport->ofproto = p; |
b33951b8 | 2408 | ofport->netdev = netdev; |
61501798 | 2409 | ofport->change_seq = netdev_get_change_seq(netdev); |
9e1fd49b BP |
2410 | ofport->pp = *pp; |
2411 | ofport->ofp_port = pp->port_no; | |
65e0be10 | 2412 | ofport->created = time_msec(); |
16361b11 | 2413 | ofport->may_enable = false; |
b33951b8 BP |
2414 | |
2415 | /* Add port to 'p'. */ | |
4e022ec0 | 2416 | hmap_insert(&p->ports, &ofport->hmap_node, |
f9c0c3ec | 2417 | hash_ofp_port(ofport->ofp_port)); |
72b06300 | 2418 | shash_add(&p->port_by_name, netdev_name, ofport); |
abe529af | 2419 | |
ada3428f | 2420 | update_mtu(p, ofport); |
9197df76 | 2421 | |
abe529af BP |
2422 | /* Let the ofproto_class initialize its private data. */ |
2423 | error = p->ofproto_class->port_construct(ofport); | |
2424 | if (error) { | |
2425 | goto error; | |
2426 | } | |
042b8f42 | 2427 | connmgr_send_port_status(p->connmgr, NULL, NULL, pp, OFPPR_ADD); |
01c77073 | 2428 | return 0; |
abe529af BP |
2429 | |
2430 | error: | |
2431 | VLOG_WARN_RL(&rl, "%s: could not add port %s (%s)", | |
10a89ef0 | 2432 | p->name, netdev_name, ovs_strerror(error)); |
abe529af BP |
2433 | if (ofport) { |
2434 | ofport_destroy__(ofport); | |
2435 | } else { | |
2436 | netdev_close(netdev); | |
72b06300 | 2437 | } |
01c77073 | 2438 | return error; |
064af421 BP |
2439 | } |
2440 | ||
b33951b8 | 2441 | /* Removes 'ofport' from 'p' and destroys it. */ |
064af421 | 2442 | static void |
0f7d71a5 | 2443 | ofport_remove(struct ofport *ofport) |
064af421 | 2444 | { |
0670b5d0 | 2445 | struct ofproto *p = ofport->ofproto; |
3a414a0a | 2446 | bool is_mtu_overridden = ofport_is_mtu_overridden(p, ofport); |
0670b5d0 | 2447 | |
042b8f42 | 2448 | connmgr_send_port_status(ofport->ofproto->connmgr, NULL, NULL, &ofport->pp, |
fa066f01 | 2449 | OFPPR_DELETE); |
9aad5a5a | 2450 | ofport_destroy(ofport, true); |
3a414a0a | 2451 | if (!is_mtu_overridden) { |
0670b5d0 | 2452 | update_mtu_ofproto(p); |
2453 | } | |
b33951b8 BP |
2454 | } |
2455 | ||
2456 | /* If 'ofproto' contains an ofport named 'name', removes it from 'ofproto' and | |
2457 | * destroys it. */ | |
2458 | static void | |
2459 | ofport_remove_with_name(struct ofproto *ofproto, const char *name) | |
2460 | { | |
2461 | struct ofport *port = shash_find_data(&ofproto->port_by_name, name); | |
2462 | if (port) { | |
0f7d71a5 | 2463 | ofport_remove(port); |
b33951b8 BP |
2464 | } |
2465 | } | |
2466 | ||
6d57dea9 BP |
2467 | static enum ofputil_port_state |
2468 | normalize_state(enum ofputil_port_config config, | |
2469 | enum ofputil_port_state state, | |
2470 | bool may_enable) | |
2471 | { | |
2472 | return (config & OFPUTIL_PC_PORT_DOWN | |
2473 | || state & OFPUTIL_PS_LINK_DOWN | |
2474 | || !may_enable | |
2475 | ? state & ~OFPUTIL_PS_LIVE | |
2476 | : state | OFPUTIL_PS_LIVE); | |
2477 | } | |
2478 | ||
2479 | void | |
2480 | ofproto_port_set_enable(struct ofport *port, bool enable) | |
2481 | { | |
2482 | if (enable != port->may_enable) { | |
2483 | port->may_enable = enable; | |
2484 | ofproto_port_set_state(port, normalize_state(port->pp.config, | |
2485 | port->pp.state, | |
2486 | port->may_enable)); | |
2487 | } | |
2488 | } | |
064af421 | 2489 | |
5a2dfd47 JP |
2490 | /* Update OpenFlow 'state' in 'port' and notify controller. */ |
2491 | void | |
9e1fd49b | 2492 | ofproto_port_set_state(struct ofport *port, enum ofputil_port_state state) |
5a2dfd47 | 2493 | { |
6d57dea9 | 2494 | state = normalize_state(port->pp.config, state, port->may_enable); |
9e1fd49b | 2495 | if (port->pp.state != state) { |
042b8f42 | 2496 | struct ofputil_phy_port old_pp = port->pp; |
9e1fd49b | 2497 | port->pp.state = state; |
042b8f42 | 2498 | connmgr_send_port_status(port->ofproto->connmgr, NULL, &old_pp, |
2a6f78e0 | 2499 | &port->pp, OFPPR_MODIFY); |
5a2dfd47 JP |
2500 | } |
2501 | } | |
2502 | ||
abe529af | 2503 | void |
4e022ec0 | 2504 | ofproto_port_unregister(struct ofproto *ofproto, ofp_port_t ofp_port) |
e7934396 | 2505 | { |
abe529af BP |
2506 | struct ofport *port = ofproto_get_port(ofproto, ofp_port); |
2507 | if (port) { | |
b308140a JP |
2508 | if (port->ofproto->ofproto_class->set_stp_port) { |
2509 | port->ofproto->ofproto_class->set_stp_port(port, NULL); | |
2510 | } | |
9efd308e DV |
2511 | if (port->ofproto->ofproto_class->set_rstp_port) { |
2512 | port->ofproto->ofproto_class->set_rstp_port(port, NULL); | |
2513 | } | |
abe529af | 2514 | if (port->ofproto->ofproto_class->set_cfm) { |
a5610457 | 2515 | port->ofproto->ofproto_class->set_cfm(port, NULL); |
abe529af BP |
2516 | } |
2517 | if (port->ofproto->ofproto_class->bundle_remove) { | |
2518 | port->ofproto->ofproto_class->bundle_remove(port); | |
e7934396 BP |
2519 | } |
2520 | } | |
2521 | } | |
2522 | ||
2523 | static void | |
abe529af | 2524 | ofport_destroy__(struct ofport *port) |
e7934396 | 2525 | { |
abe529af BP |
2526 | struct ofproto *ofproto = port->ofproto; |
2527 | const char *name = netdev_get_name(port->netdev); | |
fa066f01 | 2528 | |
f7fc8a30 | 2529 | dealloc_ofp_port(port->ofproto, port->ofp_port); |
abe529af | 2530 | hmap_remove(&ofproto->ports, &port->hmap_node); |
5978c2e3 | 2531 | shash_find_and_delete(&ofproto->port_by_name, name); |
fa066f01 | 2532 | |
abe529af BP |
2533 | netdev_close(port->netdev); |
2534 | ofproto->ofproto_class->port_dealloc(port); | |
e7934396 BP |
2535 | } |
2536 | ||
064af421 | 2537 | static void |
9aad5a5a | 2538 | ofport_destroy(struct ofport *port, bool del) |
064af421 | 2539 | { |
fa066f01 | 2540 | if (port) { |
9aad5a5a | 2541 | port->ofproto->ofproto_class->port_destruct(port, del); |
abe529af BP |
2542 | ofport_destroy__(port); |
2543 | } | |
064af421 BP |
2544 | } |
2545 | ||
abe529af | 2546 | struct ofport * |
4e022ec0 | 2547 | ofproto_get_port(const struct ofproto *ofproto, ofp_port_t ofp_port) |
ca0f572c BP |
2548 | { |
2549 | struct ofport *port; | |
2550 | ||
f9c0c3ec | 2551 | HMAP_FOR_EACH_IN_BUCKET (port, hmap_node, hash_ofp_port(ofp_port), |
4e022ec0 | 2552 | &ofproto->ports) { |
abe529af | 2553 | if (port->ofp_port == ofp_port) { |
ca0f572c BP |
2554 | return port; |
2555 | } | |
2556 | } | |
2557 | return NULL; | |
2558 | } | |
2559 | ||
fdcea803 GS |
2560 | static long long int |
2561 | ofport_get_usage(const struct ofproto *ofproto, ofp_port_t ofp_port) | |
2562 | { | |
2563 | struct ofport_usage *usage; | |
2564 | ||
2565 | HMAP_FOR_EACH_IN_BUCKET (usage, hmap_node, hash_ofp_port(ofp_port), | |
2566 | &ofproto->ofport_usage) { | |
2567 | if (usage->ofp_port == ofp_port) { | |
2568 | return usage->last_used; | |
2569 | } | |
2570 | } | |
2571 | return 0; | |
2572 | } | |
2573 | ||
2574 | static void | |
2575 | ofport_set_usage(struct ofproto *ofproto, ofp_port_t ofp_port, | |
2576 | long long int last_used) | |
2577 | { | |
2578 | struct ofport_usage *usage; | |
2579 | HMAP_FOR_EACH_IN_BUCKET (usage, hmap_node, hash_ofp_port(ofp_port), | |
2580 | &ofproto->ofport_usage) { | |
2581 | if (usage->ofp_port == ofp_port) { | |
2582 | usage->last_used = last_used; | |
2583 | return; | |
2584 | } | |
2585 | } | |
2586 | ovs_assert(last_used == LLONG_MAX); | |
2587 | ||
2588 | usage = xmalloc(sizeof *usage); | |
2589 | usage->ofp_port = ofp_port; | |
2590 | usage->last_used = last_used; | |
2591 | hmap_insert(&ofproto->ofport_usage, &usage->hmap_node, | |
2592 | hash_ofp_port(ofp_port)); | |
2593 | } | |
2594 | ||
865b26a4 GS |
2595 | static void |
2596 | ofport_remove_usage(struct ofproto *ofproto, ofp_port_t ofp_port) | |
2597 | { | |
2598 | struct ofport_usage *usage; | |
2599 | HMAP_FOR_EACH_IN_BUCKET (usage, hmap_node, hash_ofp_port(ofp_port), | |
2600 | &ofproto->ofport_usage) { | |
2601 | if (usage->ofp_port == ofp_port) { | |
2602 | hmap_remove(&ofproto->ofport_usage, &usage->hmap_node); | |
2603 | free(usage); | |
2604 | break; | |
2605 | } | |
2606 | } | |
2607 | } | |
2608 | ||
6527c598 PS |
2609 | int |
2610 | ofproto_port_get_stats(const struct ofport *port, struct netdev_stats *stats) | |
2611 | { | |
2612 | struct ofproto *ofproto = port->ofproto; | |
2613 | int error; | |
2614 | ||
2615 | if (ofproto->ofproto_class->port_get_stats) { | |
2616 | error = ofproto->ofproto_class->port_get_stats(port, stats); | |
2617 | } else { | |
2618 | error = EOPNOTSUPP; | |
2619 | } | |
2620 | ||
2621 | return error; | |
2622 | } | |
2623 | ||
01c77073 | 2624 | static int |
b33951b8 | 2625 | update_port(struct ofproto *ofproto, const char *name) |
064af421 | 2626 | { |
abe529af | 2627 | struct ofproto_port ofproto_port; |
9e1fd49b | 2628 | struct ofputil_phy_port pp; |
b33951b8 BP |
2629 | struct netdev *netdev; |
2630 | struct ofport *port; | |
01c77073 | 2631 | int error = 0; |
064af421 BP |
2632 | |
2633 | COVERAGE_INC(ofproto_update_port); | |
c874dc6d | 2634 | |
b33951b8 | 2635 | /* Fetch 'name''s location and properties from the datapath. */ |
8fa5a281 HZ |
2636 | if (ofproto_port_query_by_name(ofproto, name, &ofproto_port)) { |
2637 | netdev = NULL; | |
2638 | } else { | |
2639 | error = ofport_open(ofproto, &ofproto_port, &pp, &netdev); | |
2640 | } | |
4e022ec0 | 2641 | |
b33951b8 | 2642 | if (netdev) { |
abe529af | 2643 | port = ofproto_get_port(ofproto, ofproto_port.ofp_port); |
b33951b8 | 2644 | if (port && !strcmp(netdev_get_name(port->netdev), name)) { |
e65942a0 BP |
2645 | struct netdev *old_netdev = port->netdev; |
2646 | ||
b40fc02a | 2647 | /* ofport_open() only sets OFPUTIL_PC_PORT_DOWN and |
6d57dea9 BP |
2648 | * OFPUTIL_PS_LINK_DOWN. Keep the other config and state bits (but |
2649 | * a port that is down cannot be live). */ | |
b40fc02a BP |
2650 | pp.config |= port->pp.config & ~OFPUTIL_PC_PORT_DOWN; |
2651 | pp.state |= port->pp.state & ~OFPUTIL_PS_LINK_DOWN; | |
6d57dea9 | 2652 | pp.state = normalize_state(pp.config, pp.state, port->may_enable); |
b40fc02a | 2653 | |
b33951b8 | 2654 | /* 'name' hasn't changed location. Any properties changed? */ |
6d57dea9 BP |
2655 | if (!ofport_equal(&port->pp, &pp)) { |
2656 | connmgr_send_port_status(port->ofproto->connmgr, NULL, | |
2657 | &port->pp, &pp, OFPPR_MODIFY); | |
b40fc02a | 2658 | port->pp = pp; |
abe529af BP |
2659 | } |
2660 | ||
ada3428f | 2661 | update_mtu(ofproto, port); |
9197df76 | 2662 | |
e65942a0 BP |
2663 | /* Install the newly opened netdev in case it has changed. |
2664 | * Don't close the old netdev yet in case port_modified has to | |
2665 | * remove a retained reference to it.*/ | |
abe529af | 2666 | port->netdev = netdev; |
61501798 | 2667 | port->change_seq = netdev_get_change_seq(netdev); |
abe529af BP |
2668 | |
2669 | if (port->ofproto->ofproto_class->port_modified) { | |
2670 | port->ofproto->ofproto_class->port_modified(port); | |
b33951b8 | 2671 | } |
e65942a0 BP |
2672 | |
2673 | netdev_close(old_netdev); | |
b33951b8 BP |
2674 | } else { |
2675 | /* If 'port' is nonnull then its name differs from 'name' and thus | |
2676 | * we should delete it. If we think there's a port named 'name' | |
2677 | * then its port number must be wrong now so delete it too. */ | |
2678 | if (port) { | |
0f7d71a5 | 2679 | ofport_remove(port); |
b33951b8 BP |
2680 | } |
2681 | ofport_remove_with_name(ofproto, name); | |
01c77073 | 2682 | error = ofport_install(ofproto, netdev, &pp); |
c874dc6d | 2683 | } |
b33951b8 BP |
2684 | } else { |
2685 | /* Any port named 'name' is gone now. */ | |
2686 | ofport_remove_with_name(ofproto, name); | |
c874dc6d | 2687 | } |
abe529af | 2688 | ofproto_port_destroy(&ofproto_port); |
01c77073 BP |
2689 | |
2690 | return error; | |
064af421 BP |
2691 | } |
2692 | ||
2693 | static int | |
2694 | init_ports(struct ofproto *p) | |
2695 | { | |
abe529af BP |
2696 | struct ofproto_port_dump dump; |
2697 | struct ofproto_port ofproto_port; | |
e1b1d06a | 2698 | struct shash_node *node, *next; |
abe529af BP |
2699 | |
2700 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { | |
e1b1d06a JP |
2701 | const char *name = ofproto_port.name; |
2702 | ||
2703 | if (shash_find(&p->port_by_name, name)) { | |
fbfa2911 | 2704 | VLOG_WARN_RL(&rl, "%s: ignoring duplicate device %s in datapath", |
e1b1d06a | 2705 | p->name, name); |
abe529af | 2706 | } else { |
9e1fd49b | 2707 | struct ofputil_phy_port pp; |
b33951b8 BP |
2708 | struct netdev *netdev; |
2709 | ||
e1b1d06a JP |
2710 | /* Check if an OpenFlow port number had been requested. */ |
2711 | node = shash_find(&init_ofp_ports, name); | |
2712 | if (node) { | |
2713 | const struct iface_hint *iface_hint = node->data; | |
4e022ec0 AW |
2714 | simap_put(&p->ofp_requests, name, |
2715 | ofp_to_u16(iface_hint->ofp_port)); | |
e1b1d06a JP |
2716 | } |
2717 | ||
8fa5a281 | 2718 | ofport_open(p, &ofproto_port, &pp, &netdev); |
b33951b8 | 2719 | if (netdev) { |
9e1fd49b | 2720 | ofport_install(p, netdev, &pp); |
430dbb14 | 2721 | if (ofp_to_u16(ofproto_port.ofp_port) < p->max_ports) { |
7c35397c | 2722 | p->alloc_port_no = MAX(p->alloc_port_no, |
430dbb14 | 2723 | ofp_to_u16(ofproto_port.ofp_port)); |
7c35397c | 2724 | } |
064af421 BP |
2725 | } |
2726 | } | |
2727 | } | |
b0ec0f27 | 2728 | |
e1b1d06a | 2729 | SHASH_FOR_EACH_SAFE(node, next, &init_ofp_ports) { |
4f9e08a5 | 2730 | struct iface_hint *iface_hint = node->data; |
e1b1d06a JP |
2731 | |
2732 | if (!strcmp(iface_hint->br_name, p->name)) { | |
2733 | free(iface_hint->br_name); | |
2734 | free(iface_hint->br_type); | |
4f9e08a5 | 2735 | free(iface_hint); |
e1b1d06a JP |
2736 | shash_delete(&init_ofp_ports, node); |
2737 | } | |
2738 | } | |
2739 | ||
064af421 BP |
2740 | return 0; |
2741 | } | |
9197df76 | 2742 | |
3a414a0a | 2743 | static bool |
8c319e8b | 2744 | ofport_is_internal_or_patch(const struct ofproto *p, const struct ofport *port) |
0670b5d0 | 2745 | { |
c381bca5 BP |
2746 | const char *netdev_type = netdev_get_type(port->netdev); |
2747 | return !strcmp(netdev_type, ofproto_port_open_type(p, "internal")) || | |
2748 | !strcmp(netdev_type, ofproto_port_open_type(p, "patch")); | |
0670b5d0 | 2749 | } |
2750 | ||
8c319e8b NS |
2751 | /* If 'port' is internal or patch and if the user didn't explicitly specify an |
2752 | * mtu through the database, we have to override it. */ | |
3a414a0a DDP |
2753 | static bool |
2754 | ofport_is_mtu_overridden(const struct ofproto *p, const struct ofport *port) | |
2755 | { | |
8c319e8b | 2756 | return ofport_is_internal_or_patch(p, port) |
3a414a0a DDP |
2757 | && !netdev_mtu_is_user_config(port->netdev); |
2758 | } | |
2759 | ||
2760 | /* Find the minimum MTU of all non-overridden devices attached to 'p'. | |
9197df76 JP |
2761 | * Returns ETH_PAYLOAD_MAX or the minimum of the ports. */ |
2762 | static int | |
2763 | find_min_mtu(struct ofproto *p) | |
2764 | { | |
2765 | struct ofport *ofport; | |
2766 | int mtu = 0; | |
2767 | ||
2768 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
2769 | struct netdev *netdev = ofport->netdev; | |
2770 | int dev_mtu; | |
2771 | ||
3a414a0a DDP |
2772 | /* Skip any overridden port, since that's what we're trying to set. */ |
2773 | if (ofport_is_mtu_overridden(p, ofport)) { | |
9197df76 JP |
2774 | continue; |
2775 | } | |
2776 | ||
2777 | if (netdev_get_mtu(netdev, &dev_mtu)) { | |
2778 | continue; | |
2779 | } | |
2780 | if (!mtu || dev_mtu < mtu) { | |
2781 | mtu = dev_mtu; | |
2782 | } | |
2783 | } | |
2784 | ||
2785 | return mtu ? mtu: ETH_PAYLOAD_MAX; | |
2786 | } | |
2787 | ||
3a414a0a DDP |
2788 | /* Update MTU of all overridden devices on 'p' to the minimum of the |
2789 | * non-overridden ports in event of 'port' added or changed. */ | |
9197df76 | 2790 | static void |
ada3428f | 2791 | update_mtu(struct ofproto *p, struct ofport *port) |
9197df76 | 2792 | { |
ada3428f | 2793 | struct netdev *netdev = port->netdev; |
0670b5d0 | 2794 | int dev_mtu; |
ada3428f PS |
2795 | |
2796 | if (netdev_get_mtu(netdev, &dev_mtu)) { | |
2797 | port->mtu = 0; | |
2798 | return; | |
2799 | } | |
3a414a0a | 2800 | if (ofport_is_mtu_overridden(p, port)) { |
7478b5a2 | 2801 | if (dev_mtu > p->min_mtu) { |
3a414a0a DDP |
2802 | if (!netdev_set_mtu(port->netdev, p->min_mtu)) { |
2803 | dev_mtu = p->min_mtu; | |
2804 | } | |
ada3428f PS |
2805 | } |
2806 | port->mtu = dev_mtu; | |
2807 | return; | |
2808 | } | |
2809 | ||
ada3428f | 2810 | port->mtu = dev_mtu; |
3a414a0a DDP |
2811 | /* For non-overridden port find new min mtu. */ |
2812 | ||
0670b5d0 | 2813 | update_mtu_ofproto(p); |
2814 | } | |
2815 | ||
2816 | static void | |
2817 | update_mtu_ofproto(struct ofproto *p) | |
2818 | { | |
0670b5d0 | 2819 | struct ofport *ofport; |
2820 | int old_min = p->min_mtu; | |
2821 | ||
ada3428f PS |
2822 | p->min_mtu = find_min_mtu(p); |
2823 | if (p->min_mtu == old_min) { | |
2824 | return; | |
2825 | } | |
9197df76 JP |
2826 | |
2827 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
2828 | struct netdev *netdev = ofport->netdev; | |
2829 | ||
3a414a0a | 2830 | if (ofport_is_mtu_overridden(p, ofport)) { |
ada3428f PS |
2831 | if (!netdev_set_mtu(netdev, p->min_mtu)) { |
2832 | ofport->mtu = p->min_mtu; | |
2833 | } | |
9197df76 JP |
2834 | } |
2835 | } | |
2836 | } | |
064af421 | 2837 | \f |
f416c8d6 JR |
2838 | static void |
2839 | ofproto_rule_destroy__(struct rule *rule) | |
2840 | OVS_NO_THREAD_SAFETY_ANALYSIS | |
2841 | { | |
2842 | cls_rule_destroy(CONST_CAST(struct cls_rule *, &rule->cr)); | |
2843 | rule_actions_destroy(rule_get_actions(rule)); | |
2844 | ovs_mutex_destroy(&rule->mutex); | |
2845 | rule->ofproto->ofproto_class->rule_dealloc(rule); | |
2846 | } | |
2847 | ||
2848 | static void | |
2849 | rule_destroy_cb(struct rule *rule) | |
f695ebfa | 2850 | OVS_NO_THREAD_SAFETY_ANALYSIS |
f416c8d6 | 2851 | { |
f695ebfa JR |
2852 | /* Send rule removed if needed. */ |
2853 | if (rule->flags & OFPUTIL_FF_SEND_FLOW_REM | |
2854 | && rule->removed_reason != OVS_OFPRR_NONE | |
2855 | && !rule_is_hidden(rule)) { | |
2856 | ofproto_rule_send_removed(rule); | |
2857 | } | |
f416c8d6 | 2858 | rule->ofproto->ofproto_class->rule_destruct(rule); |
5c7c16d8 YHW |
2859 | mf_vl_mff_unref(&rule->ofproto->vl_mff_map, rule->match_tlv_bitmap); |
2860 | mf_vl_mff_unref(&rule->ofproto->vl_mff_map, rule->ofpacts_tlv_bitmap); | |
f416c8d6 JR |
2861 | ofproto_rule_destroy__(rule); |
2862 | } | |
2863 | ||
a2143702 BP |
2864 | void |
2865 | ofproto_rule_ref(struct rule *rule) | |
064af421 | 2866 | { |
1eae3d33 | 2867 | if (rule) { |
37bec3d3 | 2868 | ovs_refcount_ref(&rule->ref_count); |
a2143702 BP |
2869 | } |
2870 | } | |
2871 | ||
f5d16e55 JR |
2872 | bool |
2873 | ofproto_rule_try_ref(struct rule *rule) | |
2874 | { | |
2875 | if (rule) { | |
2876 | return ovs_refcount_try_ref_rcu(&rule->ref_count); | |
2877 | } | |
2878 | return false; | |
2879 | } | |
2880 | ||
f416c8d6 JR |
2881 | /* Decrements 'rule''s ref_count and schedules 'rule' to be destroyed if the |
2882 | * ref_count reaches 0. | |
2883 | * | |
2884 | * Use of RCU allows short term use (between RCU quiescent periods) without | |
2885 | * keeping a reference. A reference must be taken if the rule needs to | |
2886 | * stay around accross the RCU quiescent periods. */ | |
a2143702 BP |
2887 | void |
2888 | ofproto_rule_unref(struct rule *rule) | |
2889 | { | |
24f83812 | 2890 | if (rule && ovs_refcount_unref_relaxed(&rule->ref_count) == 1) { |
2c7ee524 | 2891 | ovs_assert(rule->state != RULE_INSERTED); |
f416c8d6 | 2892 | ovsrcu_postpone(rule_destroy_cb, rule); |
1eae3d33 | 2893 | } |
064af421 BP |
2894 | } |
2895 | ||
39c94593 JR |
2896 | static void |
2897 | remove_rule_rcu__(struct rule *rule) | |
2898 | OVS_REQUIRES(ofproto_mutex) | |
2899 | { | |
2900 | struct ofproto *ofproto = rule->ofproto; | |
2901 | struct oftable *table = &ofproto->tables[rule->table_id]; | |
2902 | ||
44e0c35d | 2903 | ovs_assert(!cls_rule_visible_in_version(&rule->cr, OVS_VERSION_MAX)); |
46ab60bf | 2904 | classifier_remove_assert(&table->cls, &rule->cr); |
1fc71871 JR |
2905 | if (ofproto->ofproto_class->rule_delete) { |
2906 | ofproto->ofproto_class->rule_delete(rule); | |
2907 | } | |
39c94593 JR |
2908 | ofproto_rule_unref(rule); |
2909 | } | |
2910 | ||
2911 | static void | |
2912 | remove_rule_rcu(struct rule *rule) | |
2913 | OVS_EXCLUDED(ofproto_mutex) | |
2914 | { | |
2915 | ovs_mutex_lock(&ofproto_mutex); | |
2916 | remove_rule_rcu__(rule); | |
2917 | ovs_mutex_unlock(&ofproto_mutex); | |
2918 | } | |
2919 | ||
2920 | /* Removes and deletes rules from a NULL-terminated array of rule pointers. */ | |
2921 | static void | |
2922 | remove_rules_rcu(struct rule **rules) | |
2923 | OVS_EXCLUDED(ofproto_mutex) | |
2924 | { | |
2925 | struct rule **orig_rules = rules; | |
2926 | ||
2927 | if (*rules) { | |
2928 | struct ofproto *ofproto = rules[0]->ofproto; | |
2929 | unsigned long tables[BITMAP_N_LONGS(256)]; | |
2930 | struct rule *rule; | |
2931 | size_t table_id; | |
2932 | ||
2933 | memset(tables, 0, sizeof tables); | |
2934 | ||
2935 | ovs_mutex_lock(&ofproto_mutex); | |
2936 | while ((rule = *rules++)) { | |
2937 | /* Defer once for each new table. This defers the subtable cleanup | |
2938 | * until later, so that when removing large number of flows the | |
2939 | * operation is faster. */ | |
2940 | if (!bitmap_is_set(tables, rule->table_id)) { | |
2941 | struct classifier *cls = &ofproto->tables[rule->table_id].cls; | |
2942 | ||
2943 | bitmap_set1(tables, rule->table_id); | |
2944 | classifier_defer(cls); | |
2945 | } | |
2946 | remove_rule_rcu__(rule); | |
2947 | } | |
2948 | ||
2949 | BITMAP_FOR_EACH_1(table_id, 256, tables) { | |
2950 | struct classifier *cls = &ofproto->tables[table_id].cls; | |
2951 | ||
2952 | classifier_publish(cls); | |
2953 | } | |
2954 | ovs_mutex_unlock(&ofproto_mutex); | |
2955 | } | |
2956 | ||
2957 | free(orig_rules); | |
2958 | } | |
2959 | ||
809c7548 RW |
2960 | void |
2961 | ofproto_group_ref(struct ofgroup *group) | |
2962 | { | |
2963 | if (group) { | |
2964 | ovs_refcount_ref(&group->ref_count); | |
2965 | } | |
2966 | } | |
2967 | ||
db88b35c JR |
2968 | bool |
2969 | ofproto_group_try_ref(struct ofgroup *group) | |
2970 | { | |
2971 | if (group) { | |
2972 | return ovs_refcount_try_ref_rcu(&group->ref_count); | |
2973 | } | |
2974 | return false; | |
2975 | } | |
2976 | ||
2977 | static void | |
2978 | group_destroy_cb(struct ofgroup *group) | |
2979 | { | |
2980 | group->ofproto->ofproto_class->group_destruct(group); | |
e8dba719 JR |
2981 | ofputil_group_properties_destroy(CONST_CAST(struct ofputil_group_props *, |
2982 | &group->props)); | |
db88b35c JR |
2983 | ofputil_bucket_list_destroy(CONST_CAST(struct ovs_list *, |
2984 | &group->buckets)); | |
2985 | group->ofproto->ofproto_class->group_dealloc(group); | |
2986 | } | |
2987 | ||
809c7548 RW |
2988 | void |
2989 | ofproto_group_unref(struct ofgroup *group) | |
cc099268 | 2990 | OVS_NO_THREAD_SAFETY_ANALYSIS |
809c7548 | 2991 | { |
db88b35c | 2992 | if (group && ovs_refcount_unref_relaxed(&group->ref_count) == 1) { |
fe59694b | 2993 | ovs_assert(rule_collection_n(&group->rules) == 0); |
db88b35c | 2994 | ovsrcu_postpone(group_destroy_cb, group); |
809c7548 RW |
2995 | } |
2996 | } | |
2997 | ||
5d08a275 JR |
2998 | static void |
2999 | remove_group_rcu__(struct ofgroup *group) | |
3000 | OVS_REQUIRES(ofproto_mutex) | |
3001 | { | |
3002 | struct ofproto *ofproto = group->ofproto; | |
3003 | ||
3004 | ovs_assert(!versions_visible_in_version(&group->versions, OVS_VERSION_MAX)); | |
3005 | ||
3006 | cmap_remove(&ofproto->groups, &group->cmap_node, | |
3007 | hash_int(group->group_id, 0)); | |
3008 | ofproto_group_unref(group); | |
3009 | } | |
3010 | ||
3011 | static void | |
3012 | remove_group_rcu(struct ofgroup *group) | |
3013 | OVS_EXCLUDED(ofproto_mutex) | |
3014 | { | |
3015 | ovs_mutex_lock(&ofproto_mutex); | |
3016 | remove_group_rcu__(group); | |
3017 | ovs_mutex_unlock(&ofproto_mutex); | |
3018 | } | |
3019 | ||
3020 | /* Removes and deletes groups from a NULL-terminated array of group | |
3021 | * pointers. */ | |
3022 | static void | |
3023 | remove_groups_rcu(struct ofgroup **groups) | |
3024 | OVS_EXCLUDED(ofproto_mutex) | |
3025 | { | |
3026 | ovs_mutex_lock(&ofproto_mutex); | |
3027 | for (struct ofgroup **g = groups; *g; g++) { | |
3028 | remove_group_rcu__(*g); | |
3029 | } | |
3030 | ovs_mutex_unlock(&ofproto_mutex); | |
3031 | free(groups); | |
3032 | } | |
3033 | ||
076caa2f JR |
3034 | static bool ofproto_fix_meter_action(const struct ofproto *, |
3035 | struct ofpact_meter *); | |
65efd2ab | 3036 | |
206ddb9a JP |
3037 | static bool ofproto_fix_controller_action(const struct ofproto *, |
3038 | struct ofpact_controller *); | |
3039 | ||
dc723c44 JR |
3040 | /* Creates and returns a new 'struct rule_actions', whose actions are a copy |
3041 | * of from the 'ofpacts_len' bytes of 'ofpacts'. */ | |
3042 | const struct rule_actions * | |
4c7562c5 | 3043 | rule_actions_create(const struct ofpact *ofpacts, size_t ofpacts_len) |
6f00e29b BP |
3044 | { |
3045 | struct rule_actions *actions; | |
3046 | ||
dc723c44 | 3047 | actions = xmalloc(sizeof *actions + ofpacts_len); |
6f00e29b | 3048 | actions->ofpacts_len = ofpacts_len; |
dc723c44 | 3049 | memcpy(actions->ofpacts, ofpacts, ofpacts_len); |
cc099268 JR |
3050 | actions->has_meter = ofpacts_get_meter(ofpacts, ofpacts_len) != 0; |
3051 | actions->has_groups = | |
3052 | (ofpact_find_type_flattened(ofpacts, OFPACT_GROUP, | |
3053 | ofpact_end(ofpacts, ofpacts_len)) | |
3054 | != NULL); | |
35f48b8b BP |
3055 | actions->has_learn_with_delete = (next_learn_with_delete(actions, NULL) |
3056 | != NULL); | |
3057 | ||
6f00e29b BP |
3058 | return actions; |
3059 | } | |
3060 | ||
dc723c44 | 3061 | /* Free the actions after the RCU quiescent period is reached. */ |
6f00e29b | 3062 | void |
dc723c44 | 3063 | rule_actions_destroy(const struct rule_actions *actions) |
6f00e29b | 3064 | { |
06a0f3e2 | 3065 | if (actions) { |
dc723c44 | 3066 | ovsrcu_postpone(free, CONST_CAST(struct rule_actions *, actions)); |
6f00e29b BP |
3067 | } |
3068 | } | |
3069 | ||
bcf84111 | 3070 | /* Returns true if 'rule' has an OpenFlow OFPAT_OUTPUT or OFPAT_ENQUEUE action |
f25d0cf3 | 3071 | * that outputs to 'port' (output to OFPP_FLOOD and OFPP_ALL doesn't count). */ |
cdbdeeda | 3072 | bool |
4e022ec0 | 3073 | ofproto_rule_has_out_port(const struct rule *rule, ofp_port_t port) |
15aaf599 | 3074 | OVS_REQUIRES(ofproto_mutex) |
064af421 | 3075 | { |
06a0f3e2 BP |
3076 | if (port == OFPP_ANY) { |
3077 | return true; | |
3078 | } else { | |
3079 | const struct rule_actions *actions = rule_get_actions(rule); | |
3080 | return ofpacts_output_to_port(actions->ofpacts, | |
3081 | actions->ofpacts_len, port); | |
3082 | } | |
064af421 BP |
3083 | } |
3084 | ||
7395c052 | 3085 | /* Returns true if 'rule' has group and equals group_id. */ |
74e79b7c | 3086 | static bool |
7395c052 | 3087 | ofproto_rule_has_out_group(const struct rule *rule, uint32_t group_id) |
15aaf599 | 3088 | OVS_REQUIRES(ofproto_mutex) |
7395c052 | 3089 | { |
06a0f3e2 BP |
3090 | if (group_id == OFPG_ANY) { |
3091 | return true; | |
3092 | } else { | |
3093 | const struct rule_actions *actions = rule_get_actions(rule); | |
3094 | return ofpacts_output_to_group(actions->ofpacts, | |
3095 | actions->ofpacts_len, group_id); | |
3096 | } | |
7395c052 NZ |
3097 | } |
3098 | ||
adcf00ba | 3099 | static bool |
834fe5cb | 3100 | rule_is_readonly(const struct rule *rule) |
5c67e4af | 3101 | { |
834fe5cb BP |
3102 | const struct oftable *table = &rule->ofproto->tables[rule->table_id]; |
3103 | return (table->flags & OFTABLE_READONLY) != 0; | |
5c67e4af | 3104 | } |
fa066f01 | 3105 | \f |
35f48b8b BP |
3106 | static uint32_t |
3107 | hash_learned_cookie(ovs_be64 cookie_, uint8_t table_id) | |
3108 | { | |
3109 | uint64_t cookie = (OVS_FORCE uint64_t) cookie_; | |
3110 | return hash_3words(cookie, cookie >> 32, table_id); | |
3111 | } | |
3112 | ||
3113 | static void | |
3114 | learned_cookies_update_one__(struct ofproto *ofproto, | |
3115 | const struct ofpact_learn *learn, | |
ca6ba700 | 3116 | int delta, struct ovs_list *dead_cookies) |
35f48b8b BP |
3117 | OVS_REQUIRES(ofproto_mutex) |
3118 | { | |
3119 | uint32_t hash = hash_learned_cookie(learn->cookie, learn->table_id); | |
3120 | struct learned_cookie *c; | |
3121 | ||
fa37affa | 3122 | HMAP_FOR_EACH_WITH_HASH (c, hmap_node, hash, &ofproto->learned_cookies) { |
35f48b8b BP |
3123 | if (c->cookie == learn->cookie && c->table_id == learn->table_id) { |
3124 | c->n += delta; | |
3125 | ovs_assert(c->n >= 0); | |
3126 | ||
3127 | if (!c->n) { | |
fa37affa BP |
3128 | hmap_remove(&ofproto->learned_cookies, &c->hmap_node); |
3129 | ovs_list_push_back(dead_cookies, &c->list_node); | |
35f48b8b BP |
3130 | } |
3131 | ||
3132 | return; | |
3133 | } | |
3134 | } | |
3135 | ||
3136 | ovs_assert(delta > 0); | |
3137 | c = xmalloc(sizeof *c); | |
fa37affa | 3138 | hmap_insert(&ofproto->learned_cookies, &c->hmap_node, hash); |
35f48b8b BP |
3139 | c->cookie = learn->cookie; |
3140 | c->table_id = learn->table_id; | |
3141 | c->n = delta; | |
3142 | } | |
3143 | ||
3144 | static const struct ofpact_learn * | |
3145 | next_learn_with_delete(const struct rule_actions *actions, | |
3146 | const struct ofpact_learn *start) | |
3147 | { | |
3148 | const struct ofpact *pos; | |
3149 | ||
3150 | for (pos = start ? ofpact_next(&start->ofpact) : actions->ofpacts; | |
3151 | pos < ofpact_end(actions->ofpacts, actions->ofpacts_len); | |
3152 | pos = ofpact_next(pos)) { | |
3153 | if (pos->type == OFPACT_LEARN) { | |
3154 | const struct ofpact_learn *learn = ofpact_get_LEARN(pos); | |
3155 | if (learn->flags & NX_LEARN_F_DELETE_LEARNED) { | |
3156 | return learn; | |
3157 | } | |
3158 | } | |
3159 | } | |
3160 | ||
3161 | return NULL; | |
3162 | } | |
3163 | ||
3164 | static void | |
3165 | learned_cookies_update__(struct ofproto *ofproto, | |
3166 | const struct rule_actions *actions, | |
ca6ba700 | 3167 | int delta, struct ovs_list *dead_cookies) |
35f48b8b BP |
3168 | OVS_REQUIRES(ofproto_mutex) |
3169 | { | |
3170 | if (actions->has_learn_with_delete) { | |
3171 | const struct ofpact_learn *learn; | |
3172 | ||
3173 | for (learn = next_learn_with_delete(actions, NULL); learn; | |
3174 | learn = next_learn_with_delete(actions, learn)) { | |
3175 | learned_cookies_update_one__(ofproto, learn, delta, dead_cookies); | |
3176 | } | |
3177 | } | |
3178 | } | |
3179 | ||
3180 | static void | |
3181 | learned_cookies_inc(struct ofproto *ofproto, | |
3182 | const struct rule_actions *actions) | |
3183 | OVS_REQUIRES(ofproto_mutex) | |
3184 | { | |
3185 | learned_cookies_update__(ofproto, actions, +1, NULL); | |
3186 | } | |
3187 | ||
3188 | static void | |
3189 | learned_cookies_dec(struct ofproto *ofproto, | |
3190 | const struct rule_actions *actions, | |
ca6ba700 | 3191 | struct ovs_list *dead_cookies) |
35f48b8b BP |
3192 | OVS_REQUIRES(ofproto_mutex) |
3193 | { | |
3194 | learned_cookies_update__(ofproto, actions, -1, dead_cookies); | |
3195 | } | |
3196 | ||
3197 | static void | |
ca6ba700 | 3198 | learned_cookies_flush(struct ofproto *ofproto, struct ovs_list *dead_cookies) |
35f48b8b BP |
3199 | OVS_REQUIRES(ofproto_mutex) |
3200 | { | |
5f03c983 | 3201 | struct learned_cookie *c; |
35f48b8b | 3202 | |
6a6b7060 BP |
3203 | struct minimatch match; |
3204 | ||
3205 | minimatch_init_catchall(&match); | |
fa37affa | 3206 | LIST_FOR_EACH_POP (c, list_node, dead_cookies) { |
35f48b8b BP |
3207 | struct rule_criteria criteria; |
3208 | struct rule_collection rules; | |
44e0c35d | 3209 | rule_criteria_init(&criteria, c->table_id, &match, 0, OVS_VERSION_MAX, |
35f48b8b BP |
3210 | c->cookie, OVS_BE64_MAX, OFPP_ANY, OFPG_ANY); |
3211 | rule_criteria_require_rw(&criteria, false); | |
3212 | collect_rules_loose(ofproto, &criteria, &rules); | |
35f48b8b | 3213 | rule_criteria_destroy(&criteria); |
39c94593 | 3214 | delete_flows__(&rules, OFPRR_DELETE, NULL); |
35f48b8b | 3215 | |
35f48b8b BP |
3216 | free(c); |
3217 | } | |
6a6b7060 | 3218 | minimatch_destroy(&match); |
35f48b8b BP |
3219 | } |
3220 | \f | |
90bf1e07 | 3221 | static enum ofperr |
d1e2cf21 | 3222 | handle_echo_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3223 | { |
d9cea8f5 | 3224 | ofconn_send_reply(ofconn, ofputil_encode_echo_reply(oh)); |
064af421 | 3225 | return 0; |
064af421 BP |
3226 | } |
3227 | ||
3c1bb396 BP |
3228 | static void |
3229 | query_tables(struct ofproto *ofproto, | |
3230 | struct ofputil_table_features **featuresp, | |
3231 | struct ofputil_table_stats **statsp) | |
3232 | { | |
178742f9 BP |
3233 | struct mf_bitmap rw_fields = oxm_writable_fields(); |
3234 | struct mf_bitmap match = oxm_matchable_fields(); | |
3235 | struct mf_bitmap mask = oxm_maskable_fields(); | |
3c1bb396 BP |
3236 | |
3237 | struct ofputil_table_features *features; | |
3238 | struct ofputil_table_stats *stats; | |
3239 | int i; | |
3240 | ||
3c1bb396 BP |
3241 | features = *featuresp = xcalloc(ofproto->n_tables, sizeof *features); |
3242 | for (i = 0; i < ofproto->n_tables; i++) { | |
3243 | struct ofputil_table_features *f = &features[i]; | |
3244 | ||
3245 | f->table_id = i; | |
4bc938cc | 3246 | f->name[0] = '\0'; |
3c1bb396 BP |
3247 | f->metadata_match = OVS_BE64_MAX; |
3248 | f->metadata_write = OVS_BE64_MAX; | |
afcea9ea | 3249 | atomic_read_relaxed(&ofproto->tables[i].miss_config, &f->miss_config); |
3c1bb396 BP |
3250 | f->max_entries = 1000000; |
3251 | ||
4e413ac8 BP |
3252 | f->any_properties = true; |
3253 | ||
5dc7516b BP |
3254 | bool more_tables = false; |
3255 | for (int j = i + 1; j < ofproto->n_tables; j++) { | |
3256 | if (!(ofproto->tables[j].flags & OFTABLE_HIDDEN)) { | |
3257 | bitmap_set1(f->nonmiss.next, j); | |
3258 | more_tables = true; | |
3259 | } | |
3260 | } | |
3c1bb396 | 3261 | f->nonmiss.instructions = (1u << N_OVS_INSTRUCTIONS) - 1; |
5dc7516b | 3262 | if (!more_tables) { |
3c1bb396 BP |
3263 | f->nonmiss.instructions &= ~(1u << OVSINST_OFPIT11_GOTO_TABLE); |
3264 | } | |
3265 | f->nonmiss.write.ofpacts = (UINT64_C(1) << N_OFPACTS) - 1; | |
3266 | f->nonmiss.write.set_fields = rw_fields; | |
3267 | f->nonmiss.apply = f->nonmiss.write; | |
3268 | f->miss = f->nonmiss; | |
3269 | ||
3270 | f->match = match; | |
3271 | f->mask = mask; | |
3272 | f->wildcard = match; | |
3273 | } | |
3274 | ||
3275 | if (statsp) { | |
3276 | stats = *statsp = xcalloc(ofproto->n_tables, sizeof *stats); | |
3277 | for (i = 0; i < ofproto->n_tables; i++) { | |
3278 | struct ofputil_table_stats *s = &stats[i]; | |
3c1bb396 BP |
3279 | |
3280 | s->table_id = i; | |
d79e3d70 | 3281 | s->active_count = ofproto->tables[i].n_flows; |
3fbbcba7 BP |
3282 | if (i == 0) { |
3283 | s->active_count -= connmgr_count_hidden_rules( | |
3284 | ofproto->connmgr); | |
3285 | } | |
3c1bb396 BP |
3286 | } |
3287 | } else { | |
3288 | stats = NULL; | |
3289 | } | |
3290 | ||
3291 | ofproto->ofproto_class->query_tables(ofproto, features, stats); | |
3292 | ||
3293 | for (i = 0; i < ofproto->n_tables; i++) { | |
3294 | const struct oftable *table = &ofproto->tables[i]; | |
3295 | struct ofputil_table_features *f = &features[i]; | |
3296 | ||
3297 | if (table->name) { | |
3298 | ovs_strzcpy(f->name, table->name, sizeof f->name); | |
3299 | } | |
3300 | ||
3301 | if (table->max_flows < f->max_entries) { | |
3302 | f->max_entries = table->max_flows; | |
3303 | } | |
3304 | } | |
3305 | } | |
3306 | ||
3307 | static void | |
3308 | query_switch_features(struct ofproto *ofproto, | |
3309 | bool *arp_match_ip, uint64_t *ofpacts) | |
3310 | { | |
3311 | struct ofputil_table_features *features, *f; | |
3312 | ||
3313 | *arp_match_ip = false; | |
3314 | *ofpacts = 0; | |
3315 | ||
3316 | query_tables(ofproto, &features, NULL); | |
3317 | for (f = features; f < &features[ofproto->n_tables]; f++) { | |
3318 | *ofpacts |= f->nonmiss.apply.ofpacts | f->miss.apply.ofpacts; | |
3319 | if (bitmap_is_set(f->match.bm, MFF_ARP_SPA) || | |
3320 | bitmap_is_set(f->match.bm, MFF_ARP_TPA)) { | |
3321 | *arp_match_ip = true; | |
3322 | } | |
3323 | } | |
3324 | free(features); | |
3325 | ||
3326 | /* Sanity check. */ | |
3327 | ovs_assert(*ofpacts & (UINT64_C(1) << OFPACT_OUTPUT)); | |
3328 | } | |
3329 | ||
90bf1e07 | 3330 | static enum ofperr |
d1e2cf21 | 3331 | handle_features_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3332 | { |
64ff1d96 | 3333 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
9e1fd49b | 3334 | struct ofputil_switch_features features; |
064af421 | 3335 | struct ofport *port; |
6c1491fb | 3336 | bool arp_match_ip; |
9e1fd49b | 3337 | struct ofpbuf *b; |
064af421 | 3338 | |
3c1bb396 | 3339 | query_switch_features(ofproto, &arp_match_ip, &features.ofpacts); |
064af421 | 3340 | |
9e1fd49b | 3341 | features.datapath_id = ofproto->datapath_id; |
c184807c | 3342 | features.n_buffers = 0; |
adcf00ba | 3343 | features.n_tables = ofproto_get_n_visible_tables(ofproto); |
9e1fd49b | 3344 | features.capabilities = (OFPUTIL_C_FLOW_STATS | OFPUTIL_C_TABLE_STATS | |
4efe455d | 3345 | OFPUTIL_C_PORT_STATS | OFPUTIL_C_QUEUE_STATS | |
50b73fe1 | 3346 | OFPUTIL_C_GROUP_STATS | OFPUTIL_C_BUNDLES); |
6c1491fb | 3347 | if (arp_match_ip) { |
9e1fd49b | 3348 | features.capabilities |= OFPUTIL_C_ARP_MATCH_IP; |
6c1491fb | 3349 | } |
2e1ae200 JR |
3350 | /* FIXME: Fill in proper features.auxiliary_id for auxiliary connections */ |
3351 | features.auxiliary_id = 0; | |
9e1fd49b BP |
3352 | b = ofputil_encode_switch_features(&features, ofconn_get_protocol(ofconn), |
3353 | oh->xid); | |
64ff1d96 | 3354 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
9e1fd49b | 3355 | ofputil_put_switch_features_port(&port->pp, b); |
064af421 | 3356 | } |
064af421 | 3357 | |
9e1fd49b | 3358 | ofconn_send_reply(ofconn, b); |
064af421 BP |
3359 | return 0; |
3360 | } | |
064af421 | 3361 | |
90bf1e07 | 3362 | static enum ofperr |
d1e2cf21 | 3363 | handle_get_config_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3364 | { |
ad99e2ed BP |
3365 | struct ofputil_switch_config config; |
3366 | config.frag = ofconn_get_ofproto(ofconn)->frag_handling; | |
3367 | config.invalid_ttl_to_controller | |
3368 | = ofconn_get_invalid_ttl_to_controller(ofconn); | |
3369 | config.miss_send_len = ofconn_get_miss_send_len(ofconn); | |
3370 | ||
3371 | ofconn_send_reply(ofconn, ofputil_encode_get_config_reply(oh, &config)); | |
2d70a31a | 3372 | |
064af421 BP |
3373 | return 0; |
3374 | } | |
064af421 | 3375 | |
90bf1e07 | 3376 | static enum ofperr |
982697a4 | 3377 | handle_set_config(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3378 | { |
64ff1d96 | 3379 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
ad99e2ed BP |
3380 | struct ofputil_switch_config config; |
3381 | enum ofperr error; | |
3382 | ||
3383 | error = ofputil_decode_set_config(oh, &config); | |
3384 | if (error) { | |
3385 | return error; | |
3386 | } | |
2d70a31a | 3387 | |
7257b535 | 3388 | if (ofconn_get_type(ofconn) != OFCONN_PRIMARY |
f4f1ea7e | 3389 | || ofconn_get_role(ofconn) != OFPCR12_ROLE_SLAVE) { |
ad99e2ed BP |
3390 | enum ofputil_frag_handling cur = ofproto->frag_handling; |
3391 | enum ofputil_frag_handling next = config.frag; | |
7257b535 | 3392 | |
7257b535 BP |
3393 | if (cur != next) { |
3394 | if (ofproto->ofproto_class->set_frag_handling(ofproto, next)) { | |
3395 | ofproto->frag_handling = next; | |
3396 | } else { | |
3397 | VLOG_WARN_RL(&rl, "%s: unsupported fragment handling mode %s", | |
3398 | ofproto->name, | |
3399 | ofputil_frag_handling_to_string(next)); | |
3400 | } | |
064af421 BP |
3401 | } |
3402 | } | |
ebe482fd | 3403 | |
ad99e2ed BP |
3404 | if (config.invalid_ttl_to_controller >= 0) { |
3405 | ofconn_set_invalid_ttl_to_controller(ofconn, | |
3406 | config.invalid_ttl_to_controller); | |
3407 | } | |
3408 | ||
3409 | ofconn_set_miss_send_len(ofconn, config.miss_send_len); | |
0ad9b732 | 3410 | |
064af421 | 3411 | return 0; |
064af421 BP |
3412 | } |
3413 | ||
9deba63b | 3414 | /* Checks whether 'ofconn' is a slave controller. If so, returns an OpenFlow |
90bf1e07 BP |
3415 | * error message code for the caller to propagate upward. Otherwise, returns |
3416 | * 0. | |
3417 | * | |
3418 | * The log message mentions 'msg_type'. */ | |
3419 | static enum ofperr | |
3420 | reject_slave_controller(struct ofconn *ofconn) | |
9deba63b | 3421 | { |
1ce0a5fa | 3422 | if (ofconn_get_type(ofconn) == OFCONN_PRIMARY |
f4f1ea7e | 3423 | && ofconn_get_role(ofconn) == OFPCR12_ROLE_SLAVE) { |
20e4ec1a | 3424 | return OFPERR_OFPBRC_IS_SLAVE; |
9deba63b BP |
3425 | } else { |
3426 | return 0; | |
3427 | } | |
3428 | } | |
3429 | ||
7e9f8266 BP |
3430 | /* Checks that the 'ofpacts_len' bytes of action in 'ofpacts' are appropriate |
3431 | * for 'ofproto': | |
3432 | * | |
3433 | * - If they use a meter, then 'ofproto' has that meter configured. | |
076caa2f | 3434 | * Updates the meter action with ofproto's datapath's provider_meter_id. |
7e9f8266 BP |
3435 | * |
3436 | * - If they use any groups, then 'ofproto' has that group configured. | |
3437 | * | |
1f4a8933 JR |
3438 | * Returns 0 if successful, otherwise an OpenFlow error. Caller must hold |
3439 | * 'ofproto_mutex' for the result to be valid also after this function | |
3440 | * returns. */ | |
89108874 | 3441 | enum ofperr |
9cae45dc | 3442 | ofproto_check_ofpacts(struct ofproto *ofproto, |
7e9f8266 | 3443 | const struct ofpact ofpacts[], size_t ofpacts_len) |
1f4a8933 | 3444 | OVS_REQUIRES(ofproto_mutex) |
9cae45dc | 3445 | { |
076caa2f | 3446 | const struct ofpact *a; |
9cae45dc | 3447 | |
076caa2f JR |
3448 | OFPACT_FOR_EACH_FLATTENED (a, ofpacts, ofpacts_len) { |
3449 | if (a->type == OFPACT_METER && | |
3450 | !ofproto_fix_meter_action(ofproto, ofpact_get_METER(a))) { | |
3451 | return OFPERR_OFPMMFC_INVALID_METER; | |
3452 | } | |
9cae45dc | 3453 | |
206ddb9a JP |
3454 | if (a->type == OFPACT_CONTROLLER) { |
3455 | struct ofpact_controller *ca = ofpact_get_CONTROLLER(a); | |
3456 | ||
3457 | if (!ofproto_fix_controller_action(ofproto, ca)) { | |
3458 | static struct vlog_rate_limit rl2 = VLOG_RATE_LIMIT_INIT(1, 5); | |
3459 | VLOG_INFO_RL(&rl2, "%s: controller action specified an " | |
3460 | "unknown meter id: %d", | |
3461 | ofproto->name, ca->meter_id); | |
3462 | } | |
3463 | } | |
3464 | ||
076caa2f JR |
3465 | if (a->type == OFPACT_GROUP |
3466 | && !ofproto_group_exists(ofproto, ofpact_get_GROUP(a)->group_id)) { | |
7e9f8266 | 3467 | return OFPERR_OFPBAC_BAD_OUT_GROUP; |
84d68566 SH |
3468 | } |
3469 | } | |
3470 | ||
9cae45dc JR |
3471 | return 0; |
3472 | } | |
3473 | ||
1f4a8933 JR |
3474 | void |
3475 | ofproto_packet_out_uninit(struct ofproto_packet_out *opo) | |
3476 | { | |
3477 | dp_packet_delete(opo->packet); | |
3478 | opo->packet = NULL; | |
3479 | free(opo->flow); | |
3480 | opo->flow = NULL; | |
3481 | free(opo->ofpacts); | |
3482 | opo->ofpacts = NULL; | |
3483 | opo->ofpacts_len = 0; | |
3484 | ovs_assert(!opo->aux); | |
3485 | } | |
3486 | ||
3487 | /* Takes ownership of po->ofpacts, which must have been malloc'ed. */ | |
3488 | static enum ofperr | |
3489 | ofproto_packet_out_init(struct ofproto *ofproto, | |
3490 | struct ofconn *ofconn, | |
3491 | struct ofproto_packet_out *opo, | |
3492 | const struct ofputil_packet_out *po) | |
3493 | { | |
3494 | enum ofperr error; | |
67210a55 | 3495 | struct match match; |
d7892c81 YHW |
3496 | struct { |
3497 | struct miniflow mf; | |
3498 | uint64_t buf[FLOW_U64S]; | |
3499 | } m; | |
1f4a8933 | 3500 | |
35eb6326 YHW |
3501 | uint16_t in_port = ofp_to_u16(po->flow_metadata.flow.in_port.ofp_port); |
3502 | if (in_port >= ofproto->max_ports && in_port < ofp_to_u16(OFPP_MAX)) { | |
1f4a8933 JR |
3503 | return OFPERR_OFPBRC_BAD_PORT; |
3504 | } | |
3505 | ||
3506 | /* Get payload. */ | |
3507 | if (po->buffer_id != UINT32_MAX) { | |
3508 | return OFPERR_OFPBRC_BUFFER_UNKNOWN; | |
3509 | } | |
3510 | ||
3511 | /* Ensure that the L3 header is 32-bit aligned. */ | |
3512 | opo->packet = dp_packet_clone_data_with_headroom(po->packet, | |
3513 | po->packet_len, 2); | |
cb1145d1 ZB |
3514 | /* Take the received packet_tpye as packet_type of the packet. */ |
3515 | opo->packet->packet_type = po->flow_metadata.flow.packet_type; | |
3516 | ||
1f4a8933 JR |
3517 | /* Store struct flow. */ |
3518 | opo->flow = xmalloc(sizeof *opo->flow); | |
d7892c81 YHW |
3519 | *opo->flow = po->flow_metadata.flow; |
3520 | miniflow_extract(opo->packet, &m.mf); | |
3521 | flow_union_with_miniflow(opo->flow, &m.mf); | |
1f4a8933 JR |
3522 | |
3523 | /* Check actions like for flow mods. We pass a 'table_id' of 0 to | |
3524 | * ofproto_check_consistency(), which isn't strictly correct because these | |
3525 | * actions aren't in any table. This is OK as 'table_id' is only used to | |
3526 | * check instructions (e.g., goto-table), which can't appear on the action | |
3527 | * list of a packet-out. */ | |
67210a55 | 3528 | match_wc_init(&match, opo->flow); |
ae6f7530 BP |
3529 | struct ofpact_check_params cp = { |
3530 | .match = &match, | |
3531 | .max_ports = u16_to_ofp(ofproto->max_ports), | |
3532 | .table_id = 0, | |
3533 | .n_tables = ofproto->n_tables | |
3534 | }; | |
3535 | error = ofpacts_check_consistency(po->ofpacts, po->ofpacts_len, | |
3536 | ofconn_get_protocol(ofconn), &cp); | |
1f4a8933 JR |
3537 | if (error) { |
3538 | dp_packet_delete(opo->packet); | |
3539 | free(opo->flow); | |
3540 | return error; | |
3541 | } | |
3542 | ||
3543 | opo->ofpacts = po->ofpacts; | |
3544 | opo->ofpacts_len = po->ofpacts_len; | |
3545 | ||
3546 | opo->aux = NULL; | |
3547 | return 0; | |
3548 | } | |
3549 | ||
3550 | static enum ofperr | |
3551 | ofproto_packet_out_start(struct ofproto *ofproto, | |
3552 | struct ofproto_packet_out *opo) | |
3553 | OVS_REQUIRES(ofproto_mutex) | |
3554 | { | |
3555 | enum ofperr error; | |
3556 | ||
3557 | error = ofproto_check_ofpacts(ofproto, opo->ofpacts, opo->ofpacts_len); | |
3558 | if (error) { | |
3559 | return error; | |
3560 | } | |
3561 | ||
3562 | return ofproto->ofproto_class->packet_xlate(ofproto, opo); | |
3563 | } | |
3564 | ||
6dd3c787 JR |
3565 | static void |
3566 | ofproto_packet_out_revert(struct ofproto *ofproto, | |
3567 | struct ofproto_packet_out *opo) | |
3568 | OVS_REQUIRES(ofproto_mutex) | |
3569 | { | |
3570 | ofproto->ofproto_class->packet_xlate_revert(ofproto, opo); | |
3571 | } | |
3572 | ||
1f4a8933 JR |
3573 | static void |
3574 | ofproto_packet_out_finish(struct ofproto *ofproto, | |
3575 | struct ofproto_packet_out *opo) | |
3576 | OVS_REQUIRES(ofproto_mutex) | |
3577 | { | |
3578 | ofproto->ofproto_class->packet_execute(ofproto, opo); | |
3579 | } | |
3580 | ||
90bf1e07 | 3581 | static enum ofperr |
982697a4 | 3582 | handle_packet_out(struct ofconn *ofconn, const struct ofp_header *oh) |
1f4a8933 | 3583 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 3584 | { |
64ff1d96 | 3585 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
c6a93eb7 | 3586 | struct ofputil_packet_out po; |
1f4a8933 | 3587 | struct ofproto_packet_out opo; |
f25d0cf3 BP |
3588 | uint64_t ofpacts_stub[1024 / 8]; |
3589 | struct ofpbuf ofpacts; | |
90bf1e07 | 3590 | enum ofperr error; |
064af421 | 3591 | |
ac51afaf BP |
3592 | COVERAGE_INC(ofproto_packet_out); |
3593 | ||
76589937 | 3594 | error = reject_slave_controller(ofconn); |
9deba63b | 3595 | if (error) { |
1f4a8933 | 3596 | return error; |
9deba63b BP |
3597 | } |
3598 | ||
c6a93eb7 | 3599 | /* Decode message. */ |
f25d0cf3 | 3600 | ofpbuf_use_stub(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); |
89d7927b YHW |
3601 | error = ofputil_decode_packet_out(&po, oh, ofproto_get_tun_tab(p), |
3602 | &ofpacts); | |
064af421 | 3603 | if (error) { |
1f4a8933 JR |
3604 | ofpbuf_uninit(&ofpacts); |
3605 | return error; | |
91858960 | 3606 | } |
064af421 | 3607 | |
1f4a8933 JR |
3608 | po.ofpacts = ofpbuf_steal_data(&ofpacts); /* Move to heap. */ |
3609 | error = ofproto_packet_out_init(p, ofconn, &opo, &po); | |
3610 | if (error) { | |
3611 | free(po.ofpacts); | |
3612 | return error; | |
e1154f71 | 3613 | } |
89108874 | 3614 | |
1f4a8933 JR |
3615 | ovs_mutex_lock(&ofproto_mutex); |
3616 | opo.version = p->tables_version; | |
3617 | error = ofproto_packet_out_start(p, &opo); | |
548de4dd | 3618 | if (!error) { |
1f4a8933 | 3619 | ofproto_packet_out_finish(p, &opo); |
548de4dd | 3620 | } |
1f4a8933 | 3621 | ovs_mutex_unlock(&ofproto_mutex); |
abe529af | 3622 | |
1f4a8933 | 3623 | ofproto_packet_out_uninit(&opo); |
abe529af | 3624 | return error; |
064af421 BP |
3625 | } |
3626 | ||
77ab5fd2 BP |
3627 | static enum ofperr |
3628 | handle_nxt_resume(struct ofconn *ofconn, const struct ofp_header *oh) | |
3629 | { | |
3630 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
3631 | struct ofputil_packet_in_private pin; | |
3632 | enum ofperr error; | |
3633 | ||
8d8ab6c2 | 3634 | error = ofputil_decode_packet_in_private(oh, false, |
3cddeff0 YHW |
3635 | ofproto_get_tun_tab(ofproto), |
3636 | &ofproto->vl_mff_map, &pin, NULL, | |
3637 | NULL); | |
77ab5fd2 BP |
3638 | if (error) { |
3639 | return error; | |
3640 | } | |
3641 | ||
3642 | error = (ofproto->ofproto_class->nxt_resume | |
3643 | ? ofproto->ofproto_class->nxt_resume(ofproto, &pin) | |
3644 | : OFPERR_NXR_NOT_SUPPORTED); | |
3645 | ||
3646 | ofputil_packet_in_private_destroy(&pin); | |
3647 | ||
3648 | return error; | |
3649 | } | |
3650 | ||
064af421 | 3651 | static void |
2a6f78e0 | 3652 | update_port_config(struct ofconn *ofconn, struct ofport *port, |
9e1fd49b BP |
3653 | enum ofputil_port_config config, |
3654 | enum ofputil_port_config mask) | |
064af421 | 3655 | { |
2a6f78e0 | 3656 | enum ofputil_port_config toggle = (config ^ port->pp.config) & mask; |
abe529af | 3657 | |
2a6f78e0 BP |
3658 | if (toggle & OFPUTIL_PC_PORT_DOWN |
3659 | && (config & OFPUTIL_PC_PORT_DOWN | |
3660 | ? netdev_turn_flags_off(port->netdev, NETDEV_UP, NULL) | |
3661 | : netdev_turn_flags_on(port->netdev, NETDEV_UP, NULL))) { | |
3662 | /* We tried to bring the port up or down, but it failed, so don't | |
3663 | * update the "down" bit. */ | |
9e1fd49b | 3664 | toggle &= ~OFPUTIL_PC_PORT_DOWN; |
064af421 | 3665 | } |
abe529af | 3666 | |
2a6f78e0 | 3667 | if (toggle) { |
042b8f42 | 3668 | struct ofputil_phy_port old_pp = port->pp; |
6d57dea9 | 3669 | |
2a6f78e0 | 3670 | port->pp.config ^= toggle; |
6d57dea9 BP |
3671 | port->pp.state = normalize_state(port->pp.config, port->pp.state, |
3672 | port->may_enable); | |
3673 | ||
042b8f42 BP |
3674 | port->ofproto->ofproto_class->port_reconfigured(port, old_pp.config); |
3675 | connmgr_send_port_status(port->ofproto->connmgr, ofconn, &old_pp, | |
3676 | &port->pp, OFPPR_MODIFY); | |
064af421 BP |
3677 | } |
3678 | } | |
3679 | ||
90bf1e07 | 3680 | static enum ofperr |
1c38055d JR |
3681 | port_mod_start(struct ofconn *ofconn, struct ofputil_port_mod *pm, |
3682 | struct ofport **port) | |
064af421 | 3683 | { |
64ff1d96 | 3684 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
1c38055d JR |
3685 | |
3686 | *port = ofproto_get_port(p, pm->port_no); | |
3687 | if (!*port) { | |
3688 | return OFPERR_OFPPMFC_BAD_PORT; | |
3689 | } | |
29718ad4 | 3690 | if (!eth_addr_equals((*port)->pp.hw_addr, pm->hw_addr)) { |
1c38055d JR |
3691 | return OFPERR_OFPPMFC_BAD_HW_ADDR; |
3692 | } | |
3693 | return 0; | |
3694 | } | |
3695 | ||
3696 | static void | |
3697 | port_mod_finish(struct ofconn *ofconn, struct ofputil_port_mod *pm, | |
3698 | struct ofport *port) | |
3699 | { | |
3700 | update_port_config(ofconn, port, pm->config, pm->mask); | |
3701 | if (pm->advertise) { | |
3702 | netdev_set_advertisements(port->netdev, pm->advertise); | |
3703 | } | |
3704 | } | |
3705 | ||
3706 | static enum ofperr | |
3707 | handle_port_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
3708 | { | |
9e1fd49b | 3709 | struct ofputil_port_mod pm; |
064af421 | 3710 | struct ofport *port; |
9e1fd49b | 3711 | enum ofperr error; |
064af421 | 3712 | |
76589937 | 3713 | error = reject_slave_controller(ofconn); |
9deba63b BP |
3714 | if (error) { |
3715 | return error; | |
3716 | } | |
064af421 | 3717 | |
18cc69d9 | 3718 | error = ofputil_decode_port_mod(oh, &pm, false); |
9e1fd49b BP |
3719 | if (error) { |
3720 | return error; | |
3721 | } | |
3722 | ||
1c38055d JR |
3723 | error = port_mod_start(ofconn, &pm, &port); |
3724 | if (!error) { | |
3725 | port_mod_finish(ofconn, &pm, port); | |
064af421 | 3726 | } |
1c38055d | 3727 | return error; |
064af421 BP |
3728 | } |
3729 | ||
90bf1e07 | 3730 | static enum ofperr |
3269c562 | 3731 | handle_desc_stats_request(struct ofconn *ofconn, |
982697a4 | 3732 | const struct ofp_header *request) |
064af421 | 3733 | { |
061bfea4 BP |
3734 | static const char *default_mfr_desc = "Nicira, Inc."; |
3735 | static const char *default_hw_desc = "Open vSwitch"; | |
3736 | static const char *default_sw_desc = VERSION; | |
3737 | static const char *default_serial_desc = "None"; | |
3738 | static const char *default_dp_desc = "None"; | |
3739 | ||
64ff1d96 | 3740 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 BP |
3741 | struct ofp_desc_stats *ods; |
3742 | struct ofpbuf *msg; | |
3743 | ||
982697a4 BP |
3744 | msg = ofpraw_alloc_stats_reply(request, 0); |
3745 | ods = ofpbuf_put_zeros(msg, sizeof *ods); | |
061bfea4 BP |
3746 | ovs_strlcpy(ods->mfr_desc, p->mfr_desc ? p->mfr_desc : default_mfr_desc, |
3747 | sizeof ods->mfr_desc); | |
3748 | ovs_strlcpy(ods->hw_desc, p->hw_desc ? p->hw_desc : default_hw_desc, | |
3749 | sizeof ods->hw_desc); | |
3750 | ovs_strlcpy(ods->sw_desc, p->sw_desc ? p->sw_desc : default_sw_desc, | |
3751 | sizeof ods->sw_desc); | |
3752 | ovs_strlcpy(ods->serial_num, | |
3753 | p->serial_desc ? p->serial_desc : default_serial_desc, | |
3754 | sizeof ods->serial_num); | |
3755 | ovs_strlcpy(ods->dp_desc, p->dp_desc ? p->dp_desc : default_dp_desc, | |
3756 | sizeof ods->dp_desc); | |
b0421aa2 | 3757 | ofconn_send_reply(ofconn, msg); |
064af421 BP |
3758 | |
3759 | return 0; | |
3760 | } | |
3761 | ||
90bf1e07 | 3762 | static enum ofperr |
3269c562 | 3763 | handle_table_stats_request(struct ofconn *ofconn, |
982697a4 | 3764 | const struct ofp_header *request) |
064af421 | 3765 | { |
3c1bb396 BP |
3766 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
3767 | struct ofputil_table_features *features; | |
08d1e234 | 3768 | struct ofputil_table_stats *stats; |
3c1bb396 | 3769 | struct ofpbuf *reply; |
6c1491fb | 3770 | size_t i; |
064af421 | 3771 | |
3c1bb396 | 3772 | query_tables(ofproto, &features, &stats); |
254750ce | 3773 | |
3c1bb396 BP |
3774 | reply = ofputil_encode_table_stats_reply(request); |
3775 | for (i = 0; i < ofproto->n_tables; i++) { | |
3776 | if (!(ofproto->tables[i].flags & OFTABLE_HIDDEN)) { | |
3777 | ofputil_append_table_stats_reply(reply, &stats[i], &features[i]); | |
254750ce BP |
3778 | } |
3779 | } | |
3c1bb396 | 3780 | ofconn_send_reply(ofconn, reply); |
254750ce | 3781 | |
3c1bb396 | 3782 | free(features); |
08d1e234 | 3783 | free(stats); |
307975da | 3784 | |
064af421 BP |
3785 | return 0; |
3786 | } | |
3787 | ||
4e413ac8 BP |
3788 | /* OpenFlow 1.5.1 section 7.3.5.18.1 "Table Features request and reply" |
3789 | * says: | |
3790 | * | |
3791 | * If a table feature included in the request has an empty list of | |
3792 | * properties, the list of properties for that flow table is unchanged and | |
3793 | * only the other features of that flow table are updated. | |
3794 | * | |
3795 | * This function copies the "list of properties" from '*src' to '*dst'. */ | |
3796 | static void | |
3797 | copy_properties(struct ofputil_table_features *dst, | |
3798 | const struct ofputil_table_features *src) | |
3799 | { | |
3800 | dst->any_properties = src->any_properties; | |
3801 | if (src->any_properties) { | |
3802 | dst->nonmiss = src->nonmiss; | |
3803 | dst->miss = src->miss; | |
3804 | dst->match = src->match; | |
3805 | dst->mask = src->mask; | |
3806 | dst->wildcard = src->wildcard; | |
3807 | } | |
3808 | } | |
3809 | ||
3810 | /* Attempts to change the table features of the ofproto backing 'ofconn' to | |
3811 | * those specified in the table features request in 'msgs', given that the | |
3812 | * features are currently those in 'old'. | |
3813 | * | |
3814 | * Returns 0 if successful, an OpenFlow error if the caller should send an | |
3815 | * error message for the request as a whole, or -1 if the function already sent | |
3816 | * an error message for some message in 'msgs'. */ | |
3817 | static int | |
3818 | handle_table_features_change(struct ofconn *ofconn, | |
3819 | const struct ovs_list *msgs, | |
3820 | const struct ofputil_table_features old[]) | |
3c4e10fb BP |
3821 | { |
3822 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
4e413ac8 BP |
3823 | |
3824 | enum ofp15_table_features_command command = OFPTFC15_REPLACE; | |
3825 | struct ofputil_table_features new[255]; | |
3826 | ||
3827 | unsigned long int seen[BITMAP_N_LONGS(255)]; | |
3828 | memset(seen, 0, sizeof seen); | |
3829 | ||
3830 | struct ofpbuf *msg; | |
3831 | int n = 0; | |
3832 | LIST_FOR_EACH (msg, list_node, msgs) { | |
3833 | for (;;) { | |
3834 | struct ofputil_table_features tf; | |
3835 | int retval = ofputil_decode_table_features(msg, &tf, NULL); | |
3836 | if (retval == EOF) { | |
3837 | break; | |
3838 | } else if (retval) { | |
3839 | ofconn_send_error(ofconn, msg->header, retval); | |
3840 | return -1; | |
3841 | } | |
3842 | ||
3843 | /* Get command from first request. */ | |
3844 | if (!n) { | |
3845 | command = tf.command; | |
3846 | } | |
3847 | n++; | |
3848 | ||
3849 | /* Avoid duplicate tables. */ | |
3850 | if (bitmap_is_set(seen, tf.table_id)) { | |
3851 | VLOG_INFO_RL(&rl, "duplicate table %"PRIu8, tf.table_id); | |
3852 | ofconn_send_error(ofconn, msg->header, | |
3853 | OFPERR_NXTFFC_DUP_TABLE); | |
3854 | return -1; | |
3855 | } | |
3856 | bitmap_set1(seen, tf.table_id); | |
3857 | ||
3858 | /* Save table. */ | |
3859 | new[tf.table_id] = tf; | |
3860 | } | |
3861 | } | |
3862 | ||
3863 | if (!n) { | |
3864 | return 0; | |
3865 | } | |
3866 | ||
3867 | for (size_t i = 0; i < ofproto->n_tables; i++) { | |
3868 | if (ofproto->tables[i].flags & OFTABLE_HIDDEN) { | |
3869 | if (bitmap_is_set(seen, i)) { | |
3870 | VLOG_INFO_RL(&rl, "can't modify hidden table %"PRIuSIZE, i); | |
3871 | return OFPERR_OFPTFFC_EPERM; | |
3872 | } | |
3873 | ||
3874 | new[i] = old[i]; | |
3875 | bitmap_set1(seen, i); | |
3876 | } | |
3877 | } | |
3878 | ||
3879 | switch (command) { | |
3880 | case OFPTFC15_REPLACE: | |
3881 | break; | |
3882 | ||
3883 | case OFPTFC15_MODIFY: | |
3884 | for (size_t i = 0; i < ofproto->n_tables; i++) { | |
3885 | if (!bitmap_is_set(seen, i)) { | |
3886 | new[i] = old[i]; | |
3887 | bitmap_set1(seen, i); | |
3888 | } else if (!new[i].any_properties) { | |
3889 | copy_properties(&new[i], &old[i]); | |
3890 | } | |
3891 | } | |
3892 | break; | |
3893 | ||
3894 | case OFPTFC15_ENABLE: | |
3895 | case OFPTFC15_DISABLE: | |
3896 | /* It really isn't clear what these commands are supposed to do in an | |
3897 | * Open vSwitch context. OVS doesn't have a concept of tables that | |
3898 | * exist but are not in the pipeline, and OVS table ids are always | |
3899 | * sequential from 0. */ | |
3c4e10fb BP |
3900 | return OFPERR_OFPTFFC_EPERM; |
3901 | } | |
3902 | ||
4e413ac8 BP |
3903 | /* Make sure that the new number of tables is the same as the old number, |
3904 | * because we don't support changing the number of tables or disabling | |
3905 | * tables. */ | |
3906 | int n_tables = bitmap_scan(seen, 0, 0, 255); | |
3907 | bool skipped_tables = bitmap_scan(seen, 1, n_tables, 255) != 255; | |
3908 | if (n_tables != ofproto->n_tables || skipped_tables) { | |
3909 | if (skipped_tables) { | |
3910 | VLOG_INFO_RL(&rl, "can't disable table %d", n_tables); | |
3911 | } else { | |
3912 | VLOG_INFO_RL(&rl, "can't change number of tables from %d to %d", | |
3913 | ofproto->n_tables, n_tables); | |
3914 | } | |
3915 | return (n_tables > ofproto->n_tables | |
3916 | ? OFPERR_OFPTFFC_TOO_MANY | |
3917 | : OFPERR_OFPTFFC_EPERM); | |
3918 | } | |
3919 | ||
3920 | /* OpenFlow 1.5.1 section 7.3.5.18.1 "Table Features request and reply" | |
3921 | * says: | |
3922 | * | |
3923 | * "All fields in ofp_table_features may be requested to be changed by | |
3924 | * the controller with the exception of the max_entries field, this is | |
3925 | * read only and returned by the switch." | |
3926 | * | |
3927 | * so forbid the controller from attempting to change it. | |
3928 | * | |
3929 | * (This seems like a particularly arbitrary prohibition since OVS could | |
3930 | * easily implement such a feature. Whatever.) */ | |
3931 | for (size_t i = 0; i < n_tables; i++) { | |
3932 | if (old[i].max_entries != new[i].max_entries) { | |
3933 | VLOG_INFO_RL(&rl, "can't change max_entries"); | |
3934 | return OFPERR_OFPTFFC_EPERM; | |
3935 | } | |
3936 | } | |
3937 | ||
3938 | /* Check that we can set table names. */ | |
3939 | for (size_t i = 0; i < n_tables; i++) { | |
3940 | if (!oftable_may_set_name(&ofproto->tables[i], new[i].name, 1)) { | |
3941 | const char *name = ofproto->tables[i].name; | |
3942 | VLOG_INFO_RL(&rl, "can't change name of table %"PRIuSIZE" " | |
3943 | "to %s because it is already set to %s via OVSDB", | |
3944 | i, new[i].name, name ? name : "\"\""); | |
3945 | return OFPERR_OFPTFFC_EPERM; | |
3946 | } | |
3947 | } | |
3948 | ||
3949 | /* Ask the provider to update its features. | |
3950 | * | |
3951 | * If the provider can't update features, just make sure that the | |
3952 | * controller isn't asking to enable new features. OpenFlow says it's OK | |
3953 | * if a superset of the requested features are actually enabled. */ | |
3954 | if (ofproto->ofproto_class->modify_tables) { | |
3955 | enum ofperr error = ofproto->ofproto_class->modify_tables(ofproto, | |
3956 | old, new); | |
3957 | if (error) { | |
3958 | VLOG_INFO_RL(&rl, "can't change table features"); | |
3959 | return error; | |
3960 | } | |
3961 | } else { | |
3962 | for (size_t i = 0; i < n_tables; i++) { | |
3963 | if (!ofputil_table_features_are_superset(&old[i], &new[i])) { | |
3964 | VLOG_INFO_RL(&rl, "can't increase table features " | |
3965 | "for table %"PRIuSIZE, i); | |
3966 | return OFPERR_OFPTFFC_EPERM; | |
3967 | } | |
3968 | } | |
3969 | } | |
3970 | ||
3971 | /* Update table names. */ | |
3972 | for (size_t i = 0; i < n_tables; i++) { | |
3973 | oftable_set_name(&ofproto->tables[i], new[i].name, 1); | |
3974 | } | |
3975 | ||
3976 | return 0; | |
3977 | } | |
3978 | ||
3979 | static void | |
3980 | handle_table_features_request(struct ofconn *ofconn, | |
3981 | const struct ovs_list *msgs) | |
3982 | { | |
3983 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
3984 | ||
3985 | struct ofpbuf *msg = ofpbuf_from_list(ovs_list_back(msgs)); | |
3986 | const struct ofp_header *request = msg->data; | |
3987 | ofpraw_pull_assert(msg); | |
3988 | ||
3989 | /* Update the table features configuration, if requested. */ | |
0a2869d5 | 3990 | struct ofputil_table_features *features; |
3c4e10fb | 3991 | query_tables(ofproto, &features, NULL); |
4e413ac8 BP |
3992 | if (!ovs_list_is_singleton(msgs) || msg->size) { |
3993 | int retval = handle_table_features_change(ofconn, msgs, features); | |
3994 | free(features); | |
3995 | if (retval) { | |
3996 | if (retval < 0) { | |
3997 | /* handle_table_features_change() already sent an error. */ | |
3998 | } else { | |
3999 | ofconn_send_error(ofconn, request, retval); | |
4000 | } | |
4001 | return; | |
4002 | } | |
4003 | ||
4004 | /* Features may have changed, re-query. */ | |
4005 | query_tables(ofproto, &features, NULL); | |
4006 | } | |
3c4e10fb | 4007 | |
4e413ac8 | 4008 | /* Reply the controller with the table configuration. */ |
0a2869d5 | 4009 | struct ovs_list replies; |
3c4e10fb | 4010 | ofpmp_init(&replies, request); |
0a2869d5 | 4011 | for (size_t i = 0; i < ofproto->n_tables; i++) { |
3c4e10fb | 4012 | if (!(ofproto->tables[i].flags & OFTABLE_HIDDEN)) { |
4e413ac8 | 4013 | ofputil_append_table_features(&features[i], NULL, &replies); |
3c4e10fb BP |
4014 | } |
4015 | } | |
4016 | ofconn_send_replies(ofconn, &replies); | |
4017 | ||
4018 | free(features); | |
3c4e10fb BP |
4019 | } |
4020 | ||
6c6eedc5 SJ |
4021 | /* Returns the vacancy of 'oftable', a number that ranges from 0 (if the table |
4022 | * is full) to 100 (if the table is empty). | |
4023 | * | |
4024 | * A table without a limit on flows is considered to be empty. */ | |
4025 | static uint8_t | |
4026 | oftable_vacancy(const struct oftable *t) | |
4027 | { | |
4028 | return (!t->max_flows ? 100 | |
4029 | : t->n_flows >= t->max_flows ? 0 | |
4030 | : (t->max_flows - t->n_flows) * 100.0 / t->max_flows); | |
4031 | } | |
4032 | ||
bab86012 SJ |
4033 | static void |
4034 | query_table_desc__(struct ofputil_table_desc *td, | |
4035 | struct ofproto *ofproto, uint8_t table_id) | |
4036 | { | |
6c6eedc5 | 4037 | const struct oftable *t = &ofproto->tables[table_id]; |
bab86012 SJ |
4038 | |
4039 | td->table_id = table_id; | |
6c6eedc5 | 4040 | td->eviction = (t->eviction & EVICTION_OPENFLOW |
bab86012 SJ |
4041 | ? OFPUTIL_TABLE_EVICTION_ON |
4042 | : OFPUTIL_TABLE_EVICTION_OFF); | |
4043 | td->eviction_flags = OFPROTO_EVICTION_FLAGS; | |
6c6eedc5 | 4044 | td->vacancy = (t->vacancy_event |
bab86012 SJ |
4045 | ? OFPUTIL_TABLE_VACANCY_ON |
4046 | : OFPUTIL_TABLE_VACANCY_OFF); | |
6c6eedc5 SJ |
4047 | td->table_vacancy.vacancy_down = t->vacancy_down; |
4048 | td->table_vacancy.vacancy_up = t->vacancy_up; | |
4049 | td->table_vacancy.vacancy = oftable_vacancy(t); | |
bab86012 SJ |
4050 | } |
4051 | ||
03c72922 BP |
4052 | /* This function queries the database for dumping table-desc. */ |
4053 | static void | |
4054 | query_tables_desc(struct ofproto *ofproto, struct ofputil_table_desc **descp) | |
4055 | { | |
4056 | struct ofputil_table_desc *table_desc; | |
4057 | size_t i; | |
4058 | ||
4059 | table_desc = *descp = xcalloc(ofproto->n_tables, sizeof *table_desc); | |
4060 | for (i = 0; i < ofproto->n_tables; i++) { | |
4061 | struct ofputil_table_desc *td = &table_desc[i]; | |
bab86012 | 4062 | query_table_desc__(td, ofproto, i); |
03c72922 BP |
4063 | } |
4064 | } | |
4065 | ||
4066 | /* Function to handle dump-table-desc request. */ | |
4067 | static enum ofperr | |
4068 | handle_table_desc_request(struct ofconn *ofconn, | |
4069 | const struct ofp_header *request) | |
4070 | { | |
4071 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
4072 | struct ofputil_table_desc *table_desc; | |
4073 | struct ovs_list replies; | |
4074 | size_t i; | |
4075 | ||
4076 | query_tables_desc(ofproto, &table_desc); | |
4077 | ofpmp_init(&replies, request); | |
4078 | for (i = 0; i < ofproto->n_tables; i++) { | |
4079 | if (!(ofproto->tables[i].flags & OFTABLE_HIDDEN)) { | |
4080 | ofputil_append_table_desc_reply(&table_desc[i], &replies, | |
4081 | request->version); | |
4082 | } | |
4083 | } | |
4084 | ofconn_send_replies(ofconn, &replies); | |
4085 | free(table_desc); | |
4086 | return 0; | |
4087 | } | |
4088 | ||
6c6eedc5 SJ |
4089 | /* This function determines and sends the vacancy event, based on the value |
4090 | * of current vacancy and threshold vacancy. If the current vacancy is less | |
4091 | * than or equal to vacancy_down, vacancy up events must be enabled, and when | |
4092 | * the current vacancy is greater or equal to vacancy_up, vacancy down events | |
4093 | * must be enabled. */ | |
4094 | static void | |
4095 | send_table_status(struct ofproto *ofproto, uint8_t table_id) | |
4096 | { | |
4097 | struct oftable *t = &ofproto->tables[table_id]; | |
4098 | if (!t->vacancy_event) { | |
4099 | return; | |
4100 | } | |
4101 | ||
4102 | uint8_t vacancy = oftable_vacancy(t); | |
4103 | enum ofp14_table_reason event; | |
4104 | if (vacancy < t->vacancy_down) { | |
4105 | event = OFPTR_VACANCY_DOWN; | |
4106 | } else if (vacancy > t->vacancy_up) { | |
4107 | event = OFPTR_VACANCY_UP; | |
4108 | } else { | |
4109 | return; | |
4110 | } | |
4111 | ||
4112 | if (event == t->vacancy_event) { | |
4113 | struct ofputil_table_desc td; | |
4114 | query_table_desc__(&td, ofproto, table_id); | |
4115 | connmgr_send_table_status(ofproto->connmgr, &td, event); | |
4116 | ||
4117 | t->vacancy_event = (event == OFPTR_VACANCY_DOWN | |
4118 | ? OFPTR_VACANCY_UP | |
4119 | : OFPTR_VACANCY_DOWN); | |
4120 | } | |
4121 | } | |
4122 | ||
abaad8cf | 4123 | static void |
ca6ba700 | 4124 | append_port_stat(struct ofport *port, struct ovs_list *replies) |
abaad8cf | 4125 | { |
f8e4867e | 4126 | struct ofputil_port_stats ops = { .port_no = port->pp.port_no }; |
abaad8cf | 4127 | |
65e0be10 BP |
4128 | calc_duration(port->created, time_msec(), |
4129 | &ops.duration_sec, &ops.duration_nsec); | |
4130 | ||
d295e8e9 JP |
4131 | /* Intentionally ignore return value, since errors will set |
4132 | * 'stats' to all-1s, which is correct for OpenFlow, and | |
abaad8cf | 4133 | * netdev_get_stats() will log errors. */ |
f8e4867e | 4134 | ofproto_port_get_stats(port, &ops.stats); |
971f4b39 | 4135 | netdev_get_custom_stats(port->netdev, &ops.custom_stats); |
f8e4867e SH |
4136 | |
4137 | ofputil_append_port_stat(replies, &ops); | |
971f4b39 MW |
4138 | |
4139 | netdev_free_custom_stats_counters(&ops.custom_stats); | |
abaad8cf JP |
4140 | } |
4141 | ||
70ae4f93 BP |
4142 | static void |
4143 | handle_port_request(struct ofconn *ofconn, | |
4144 | const struct ofp_header *request, ofp_port_t port_no, | |
ca6ba700 | 4145 | void (*cb)(struct ofport *, struct ovs_list *replies)) |
064af421 | 4146 | { |
70ae4f93 | 4147 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
064af421 | 4148 | struct ofport *port; |
ca6ba700 | 4149 | struct ovs_list replies; |
064af421 | 4150 | |
982697a4 | 4151 | ofpmp_init(&replies, request); |
7f05e7ab | 4152 | if (port_no != OFPP_ANY) { |
70ae4f93 | 4153 | port = ofproto_get_port(ofproto, port_no); |
abaad8cf | 4154 | if (port) { |
70ae4f93 | 4155 | cb(port, &replies); |
abaad8cf JP |
4156 | } |
4157 | } else { | |
70ae4f93 BP |
4158 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
4159 | cb(port, &replies); | |
abaad8cf | 4160 | } |
064af421 BP |
4161 | } |
4162 | ||
63f2140a | 4163 | ofconn_send_replies(ofconn, &replies); |
70ae4f93 BP |
4164 | } |
4165 | ||
4166 | static enum ofperr | |
4167 | handle_port_stats_request(struct ofconn *ofconn, | |
4168 | const struct ofp_header *request) | |
4169 | { | |
4170 | ofp_port_t port_no; | |
4171 | enum ofperr error; | |
4172 | ||
4173 | error = ofputil_decode_port_stats_request(request, &port_no); | |
4174 | if (!error) { | |
4175 | handle_port_request(ofconn, request, port_no, append_port_stat); | |
4176 | } | |
4177 | return error; | |
4178 | } | |
4179 | ||
4180 | static void | |
ca6ba700 | 4181 | append_port_desc(struct ofport *port, struct ovs_list *replies) |
70ae4f93 BP |
4182 | { |
4183 | ofputil_append_port_desc_stats_reply(&port->pp, replies); | |
064af421 BP |
4184 | } |
4185 | ||
2be393ed JP |
4186 | static enum ofperr |
4187 | handle_port_desc_stats_request(struct ofconn *ofconn, | |
982697a4 | 4188 | const struct ofp_header *request) |
2be393ed | 4189 | { |
70ae4f93 BP |
4190 | ofp_port_t port_no; |
4191 | enum ofperr error; | |
2be393ed | 4192 | |
70ae4f93 BP |
4193 | error = ofputil_decode_port_desc_stats_request(request, &port_no); |
4194 | if (!error) { | |
4195 | handle_port_request(ofconn, request, port_no, append_port_desc); | |
2be393ed | 4196 | } |
70ae4f93 | 4197 | return error; |
2be393ed JP |
4198 | } |
4199 | ||
98eaac36 JR |
4200 | static uint32_t |
4201 | hash_cookie(ovs_be64 cookie) | |
4202 | { | |
965607c8 | 4203 | return hash_uint64((OVS_FORCE uint64_t)cookie); |
98eaac36 JR |
4204 | } |
4205 | ||
4206 | static void | |
4207 | cookies_insert(struct ofproto *ofproto, struct rule *rule) | |
2c916028 | 4208 | OVS_REQUIRES(ofproto_mutex) |
98eaac36 JR |
4209 | { |
4210 | hindex_insert(&ofproto->cookies, &rule->cookie_node, | |
4211 | hash_cookie(rule->flow_cookie)); | |
4212 | } | |
4213 | ||
4214 | static void | |
4215 | cookies_remove(struct ofproto *ofproto, struct rule *rule) | |
2c916028 | 4216 | OVS_REQUIRES(ofproto_mutex) |
98eaac36 JR |
4217 | { |
4218 | hindex_remove(&ofproto->cookies, &rule->cookie_node); | |
4219 | } | |
4220 | ||
c6ebb8fb | 4221 | static void |
65e0be10 BP |
4222 | calc_duration(long long int start, long long int now, |
4223 | uint32_t *sec, uint32_t *nsec) | |
c6ebb8fb | 4224 | { |
f27f2134 | 4225 | long long int msecs = now - start; |
588cd7b5 BP |
4226 | *sec = msecs / 1000; |
4227 | *nsec = (msecs % 1000) * (1000 * 1000); | |
4228 | } | |
4229 | ||
48266274 | 4230 | /* Checks whether 'table_id' is 0xff or a valid table ID in 'ofproto'. Returns |
554764d1 SH |
4231 | * true if 'table_id' is OK, false otherwise. */ |
4232 | static bool | |
48266274 BP |
4233 | check_table_id(const struct ofproto *ofproto, uint8_t table_id) |
4234 | { | |
554764d1 | 4235 | return table_id == OFPTT_ALL || table_id < ofproto->n_tables; |
48266274 BP |
4236 | } |
4237 | ||
5c67e4af | 4238 | static struct oftable * |
d4ce8a49 | 4239 | next_visible_table(const struct ofproto *ofproto, uint8_t table_id) |
5c67e4af BP |
4240 | { |
4241 | struct oftable *table; | |
4242 | ||
4243 | for (table = &ofproto->tables[table_id]; | |
4244 | table < &ofproto->tables[ofproto->n_tables]; | |
4245 | table++) { | |
4246 | if (!(table->flags & OFTABLE_HIDDEN)) { | |
4247 | return table; | |
4248 | } | |
4249 | } | |
4250 | ||
4251 | return NULL; | |
4252 | } | |
4253 | ||
d0918789 | 4254 | static struct oftable * |
d4ce8a49 | 4255 | first_matching_table(const struct ofproto *ofproto, uint8_t table_id) |
064af421 | 4256 | { |
6c1491fb | 4257 | if (table_id == 0xff) { |
5c67e4af | 4258 | return next_visible_table(ofproto, 0); |
6c1491fb BP |
4259 | } else if (table_id < ofproto->n_tables) { |
4260 | return &ofproto->tables[table_id]; | |
a02e5331 | 4261 | } else { |
6c1491fb | 4262 | return NULL; |
a02e5331 | 4263 | } |
064af421 BP |
4264 | } |
4265 | ||
d0918789 | 4266 | static struct oftable * |
d4ce8a49 BP |
4267 | next_matching_table(const struct ofproto *ofproto, |
4268 | const struct oftable *table, uint8_t table_id) | |
6c1491fb | 4269 | { |
5c67e4af BP |
4270 | return (table_id == 0xff |
4271 | ? next_visible_table(ofproto, (table - ofproto->tables) + 1) | |
6c1491fb BP |
4272 | : NULL); |
4273 | } | |
4274 | ||
d0918789 | 4275 | /* Assigns TABLE to each oftable, in turn, that matches TABLE_ID in OFPROTO: |
6c1491fb BP |
4276 | * |
4277 | * - If TABLE_ID is 0xff, this iterates over every classifier table in | |
5c67e4af | 4278 | * OFPROTO, skipping tables marked OFTABLE_HIDDEN. |
6c1491fb BP |
4279 | * |
4280 | * - If TABLE_ID is the number of a table in OFPROTO, then the loop iterates | |
5c67e4af BP |
4281 | * only once, for that table. (This can be used to access tables marked |
4282 | * OFTABLE_HIDDEN.) | |
6c1491fb | 4283 | * |
48266274 BP |
4284 | * - Otherwise, TABLE_ID isn't valid for OFPROTO, so the loop won't be |
4285 | * entered at all. (Perhaps you should have validated TABLE_ID with | |
4286 | * check_table_id().) | |
6c1491fb BP |
4287 | * |
4288 | * All parameters are evaluated multiple times. | |
4289 | */ | |
d0918789 BP |
4290 | #define FOR_EACH_MATCHING_TABLE(TABLE, TABLE_ID, OFPROTO) \ |
4291 | for ((TABLE) = first_matching_table(OFPROTO, TABLE_ID); \ | |
4292 | (TABLE) != NULL; \ | |
4293 | (TABLE) = next_matching_table(OFPROTO, TABLE, TABLE_ID)) | |
6c1491fb | 4294 | |
a9b22b7f BP |
4295 | /* Initializes 'criteria' in a straightforward way based on the other |
4296 | * parameters. | |
4297 | * | |
dd51dae2 BP |
4298 | * By default, the criteria include flows that are read-only, on the assumption |
4299 | * that the collected flows won't be modified. Call rule_criteria_require_rw() | |
4300 | * if flows will be modified. | |
4301 | * | |
a9b22b7f BP |
4302 | * For "loose" matching, the 'priority' parameter is unimportant and may be |
4303 | * supplied as 0. */ | |
4304 | static void | |
4305 | rule_criteria_init(struct rule_criteria *criteria, uint8_t table_id, | |
6a6b7060 | 4306 | const struct minimatch *match, int priority, |
44e0c35d | 4307 | ovs_version_t version, ovs_be64 cookie, |
18721c4a JR |
4308 | ovs_be64 cookie_mask, ofp_port_t out_port, |
4309 | uint32_t out_group) | |
a9b22b7f BP |
4310 | { |
4311 | criteria->table_id = table_id; | |
6a6b7060 | 4312 | cls_rule_init_from_minimatch(&criteria->cr, match, priority); |
bd53aa17 | 4313 | criteria->version = version; |
a9b22b7f BP |
4314 | criteria->cookie = cookie; |
4315 | criteria->cookie_mask = cookie_mask; | |
4316 | criteria->out_port = out_port; | |
4317 | criteria->out_group = out_group; | |
dd51dae2 BP |
4318 | |
4319 | /* We ordinarily want to skip hidden rules, but there has to be a way for | |
4320 | * code internal to OVS to modify and delete them, so if the criteria | |
4321 | * specify a priority that can only be for a hidden flow, then allow hidden | |
4322 | * rules to be selected. (This doesn't allow OpenFlow clients to meddle | |
4323 | * with hidden flows because OpenFlow uses only a 16-bit field to specify | |
4324 | * priority.) */ | |
4325 | criteria->include_hidden = priority > UINT16_MAX; | |
4326 | ||
4327 | /* We assume that the criteria are being used to collect flows for reading | |
4328 | * but not modification. Thus, we should collect read-only flows. */ | |
4329 | criteria->include_readonly = true; | |
4330 | } | |
4331 | ||
4332 | /* By default, criteria initialized by rule_criteria_init() will match flows | |
4333 | * that are read-only, on the assumption that the collected flows won't be | |
4334 | * modified. Call this function to match only flows that are be modifiable. | |
4335 | * | |
4336 | * Specify 'can_write_readonly' as false in ordinary circumstances, true if the | |
4337 | * caller has special privileges that allow it to modify even "read-only" | |
4338 | * flows. */ | |
4339 | static void | |
4340 | rule_criteria_require_rw(struct rule_criteria *criteria, | |
4341 | bool can_write_readonly) | |
4342 | { | |
4343 | criteria->include_readonly = can_write_readonly; | |
a9b22b7f BP |
4344 | } |
4345 | ||
4346 | static void | |
4347 | rule_criteria_destroy(struct rule_criteria *criteria) | |
4348 | { | |
4349 | cls_rule_destroy(&criteria->cr); | |
5bacd5cd | 4350 | criteria->version = OVS_VERSION_NOT_REMOVED; /* Mark as destroyed. */ |
a9b22b7f BP |
4351 | } |
4352 | ||
39c94593 JR |
4353 | /* Schedules postponed removal of rules, destroys 'rules'. */ |
4354 | static void | |
cc099268 | 4355 | remove_rules_postponed(struct rule_collection *rules) |
39c94593 JR |
4356 | OVS_REQUIRES(ofproto_mutex) |
4357 | { | |
fe59694b JR |
4358 | if (rule_collection_n(rules) > 0) { |
4359 | if (rule_collection_n(rules) == 1) { | |
4360 | ovsrcu_postpone(remove_rule_rcu, rule_collection_rules(rules)[0]); | |
4361 | rule_collection_init(rules); | |
39c94593 JR |
4362 | } else { |
4363 | ovsrcu_postpone(remove_rules_rcu, rule_collection_detach(rules)); | |
4364 | } | |
4365 | } | |
4366 | } | |
4367 | ||
5d08a275 JR |
4368 | /* Schedules postponed removal of groups, destroys 'groups'. */ |
4369 | static void | |
4370 | remove_groups_postponed(struct group_collection *groups) | |
4371 | OVS_REQUIRES(ofproto_mutex) | |
4372 | { | |
4373 | if (group_collection_n(groups) > 0) { | |
4374 | if (group_collection_n(groups) == 1) { | |
4375 | ovsrcu_postpone(remove_group_rcu, | |
4376 | group_collection_groups(groups)[0]); | |
4377 | group_collection_init(groups); | |
4378 | } else { | |
4379 | ovsrcu_postpone(remove_groups_rcu, | |
4380 | group_collection_detach(groups)); | |
4381 | } | |
4382 | } | |
4383 | } | |
4384 | ||
dd51dae2 BP |
4385 | /* Checks whether 'rule' matches 'c' and, if so, adds it to 'rules'. This |
4386 | * function verifies most of the criteria in 'c' itself, but the caller must | |
4387 | * check 'c->cr' itself. | |
4388 | * | |
2b7b1427 | 4389 | * Rules that have already been marked for removal are not collected. |
ce59413f | 4390 | * |
dd51dae2 | 4391 | * Increments '*n_readonly' if 'rule' wasn't added because it's read-only (and |
b20f4073 BP |
4392 | * 'c' only includes modifiable rules). */ |
4393 | static void | |
a9b22b7f | 4394 | collect_rule(struct rule *rule, const struct rule_criteria *c, |
dd51dae2 | 4395 | struct rule_collection *rules, size_t *n_readonly) |
15aaf599 | 4396 | OVS_REQUIRES(ofproto_mutex) |
6c1d7642 | 4397 | { |
dd51dae2 BP |
4398 | if ((c->table_id == rule->table_id || c->table_id == 0xff) |
4399 | && ofproto_rule_has_out_port(rule, c->out_port) | |
4400 | && ofproto_rule_has_out_group(rule, c->out_group) | |
4401 | && !((rule->flow_cookie ^ c->cookie) & c->cookie_mask) | |
ce59413f | 4402 | && (!rule_is_hidden(rule) || c->include_hidden) |
bd53aa17 | 4403 | && cls_rule_visible_in_version(&rule->cr, c->version)) { |
dd51dae2 | 4404 | /* Rule matches all the criteria... */ |
834fe5cb | 4405 | if (!rule_is_readonly(rule) || c->include_readonly) { |
dd51dae2 | 4406 | /* ...add it. */ |
a8e547c1 | 4407 | rule_collection_add(rules, rule); |
dd51dae2 BP |
4408 | } else { |
4409 | /* ...except it's read-only. */ | |
4410 | ++*n_readonly; | |
6c1d7642 | 4411 | } |
6c1d7642 BP |
4412 | } |
4413 | } | |
4414 | ||
a9b22b7f BP |
4415 | /* Searches 'ofproto' for rules that match the criteria in 'criteria'. Matches |
4416 | * on classifiers rules are done in the "loose" way required for OpenFlow | |
4417 | * OFPFC_MODIFY and OFPFC_DELETE requests. Puts the selected rules on list | |
9ed18e46 BP |
4418 | * 'rules'. |
4419 | * | |
9ed18e46 | 4420 | * Returns 0 on success, otherwise an OpenFlow error code. */ |
90bf1e07 | 4421 | static enum ofperr |
a9b22b7f | 4422 | collect_rules_loose(struct ofproto *ofproto, |
a8e547c1 BP |
4423 | const struct rule_criteria *criteria, |
4424 | struct rule_collection *rules) | |
15aaf599 | 4425 | OVS_REQUIRES(ofproto_mutex) |
9ed18e46 | 4426 | { |
d0918789 | 4427 | struct oftable *table; |
554764d1 | 4428 | enum ofperr error = 0; |
dd51dae2 | 4429 | size_t n_readonly = 0; |
48266274 | 4430 | |
a8e547c1 BP |
4431 | rule_collection_init(rules); |
4432 | ||
554764d1 SH |
4433 | if (!check_table_id(ofproto, criteria->table_id)) { |
4434 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
a8e547c1 | 4435 | goto exit; |
48266274 | 4436 | } |
9ed18e46 | 4437 | |
b8266395 | 4438 | if (criteria->cookie_mask == OVS_BE64_MAX) { |
98eaac36 JR |
4439 | struct rule *rule; |
4440 | ||
a9b22b7f BP |
4441 | HINDEX_FOR_EACH_WITH_HASH (rule, cookie_node, |
4442 | hash_cookie(criteria->cookie), | |
98eaac36 | 4443 | &ofproto->cookies) { |
a9b22b7f | 4444 | if (cls_rule_is_loose_match(&rule->cr, &criteria->cr.match)) { |
b20f4073 | 4445 | collect_rule(rule, criteria, rules, &n_readonly); |
98eaac36 JR |
4446 | } |
4447 | } | |
6c1d7642 | 4448 | } else { |
a9b22b7f | 4449 | FOR_EACH_MATCHING_TABLE (table, criteria->table_id, ofproto) { |
6c1d7642 | 4450 | struct rule *rule; |
9ed18e46 | 4451 | |
bd53aa17 JR |
4452 | CLS_FOR_EACH_TARGET (rule, cr, &table->cls, &criteria->cr, |
4453 | criteria->version) { | |
b20f4073 | 4454 | collect_rule(rule, criteria, rules, &n_readonly); |
9ed18e46 BP |
4455 | } |
4456 | } | |
4457 | } | |
48d28ac1 | 4458 | |
a8e547c1 | 4459 | exit: |
fe59694b | 4460 | if (!error && !rule_collection_n(rules) && n_readonly) { |
dd51dae2 BP |
4461 | /* We didn't find any rules to modify. We did find some read-only |
4462 | * rules that we're not allowed to modify, so report that. */ | |
4463 | error = OFPERR_OFPBRC_EPERM; | |
4464 | } | |
a8e547c1 BP |
4465 | if (error) { |
4466 | rule_collection_destroy(rules); | |
4467 | } | |
48d28ac1 | 4468 | return error; |
9ed18e46 BP |
4469 | } |
4470 | ||
a9b22b7f BP |
4471 | /* Searches 'ofproto' for rules that match the criteria in 'criteria'. Matches |
4472 | * on classifiers rules are done in the "strict" way required for OpenFlow | |
4473 | * OFPFC_MODIFY_STRICT and OFPFC_DELETE_STRICT requests. Puts the selected | |
4474 | * rules on list 'rules'. | |
9ed18e46 | 4475 | * |
9ed18e46 | 4476 | * Returns 0 on success, otherwise an OpenFlow error code. */ |
90bf1e07 | 4477 | static enum ofperr |
a9b22b7f | 4478 | collect_rules_strict(struct ofproto *ofproto, |
a8e547c1 BP |
4479 | const struct rule_criteria *criteria, |
4480 | struct rule_collection *rules) | |
15aaf599 | 4481 | OVS_REQUIRES(ofproto_mutex) |
9ed18e46 | 4482 | { |
d0918789 | 4483 | struct oftable *table; |
dd51dae2 | 4484 | size_t n_readonly = 0; |
d51c8b71 | 4485 | enum ofperr error = 0; |
48266274 | 4486 | |
a8e547c1 BP |
4487 | rule_collection_init(rules); |
4488 | ||
554764d1 SH |
4489 | if (!check_table_id(ofproto, criteria->table_id)) { |
4490 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
a8e547c1 | 4491 | goto exit; |
48266274 | 4492 | } |
9ed18e46 | 4493 | |
b8266395 | 4494 | if (criteria->cookie_mask == OVS_BE64_MAX) { |
98eaac36 JR |
4495 | struct rule *rule; |
4496 | ||
a9b22b7f BP |
4497 | HINDEX_FOR_EACH_WITH_HASH (rule, cookie_node, |
4498 | hash_cookie(criteria->cookie), | |
98eaac36 | 4499 | &ofproto->cookies) { |
a9b22b7f | 4500 | if (cls_rule_equal(&rule->cr, &criteria->cr)) { |
b20f4073 | 4501 | collect_rule(rule, criteria, rules, &n_readonly); |
98eaac36 JR |
4502 | } |
4503 | } | |
6c1d7642 | 4504 | } else { |
a9b22b7f | 4505 | FOR_EACH_MATCHING_TABLE (table, criteria->table_id, ofproto) { |
6c1d7642 | 4506 | struct rule *rule; |
9ed18e46 | 4507 | |
a9b22b7f | 4508 | rule = rule_from_cls_rule(classifier_find_rule_exactly( |
bd53aa17 JR |
4509 | &table->cls, &criteria->cr, |
4510 | criteria->version)); | |
6c1d7642 | 4511 | if (rule) { |
b20f4073 | 4512 | collect_rule(rule, criteria, rules, &n_readonly); |
9ed18e46 BP |
4513 | } |
4514 | } | |
4515 | } | |
48d28ac1 | 4516 | |
a8e547c1 | 4517 | exit: |
fe59694b | 4518 | if (!error && !rule_collection_n(rules) && n_readonly) { |
b20f4073 BP |
4519 | /* We didn't find any rules to modify. We did find some read-only |
4520 | * rules that we're not allowed to modify, so report that. */ | |
4521 | error = OFPERR_OFPBRC_EPERM; | |
4522 | } | |
a8e547c1 BP |
4523 | if (error) { |
4524 | rule_collection_destroy(rules); | |
4525 | } | |
6c1d7642 | 4526 | return error; |
9ed18e46 BP |
4527 | } |
4528 | ||
f27f2134 BP |
4529 | /* Returns 'age_ms' (a duration in milliseconds), converted to seconds and |
4530 | * forced into the range of a uint16_t. */ | |
4531 | static int | |
4532 | age_secs(long long int age_ms) | |
4533 | { | |
4534 | return (age_ms < 0 ? 0 | |
4535 | : age_ms >= UINT16_MAX * 1000 ? UINT16_MAX | |
4536 | : (unsigned int) age_ms / 1000); | |
4537 | } | |
4538 | ||
90bf1e07 | 4539 | static enum ofperr |
63f2140a | 4540 | handle_flow_stats_request(struct ofconn *ofconn, |
982697a4 | 4541 | const struct ofp_header *request) |
15aaf599 | 4542 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 4543 | { |
64ff1d96 | 4544 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
81d1ea94 | 4545 | struct ofputil_flow_stats_request fsr; |
a9b22b7f | 4546 | struct rule_criteria criteria; |
a8e547c1 | 4547 | struct rule_collection rules; |
ca6ba700 | 4548 | struct ovs_list replies; |
90bf1e07 | 4549 | enum ofperr error; |
09246b99 | 4550 | |
8d8ab6c2 | 4551 | error = ofputil_decode_flow_stats_request(&fsr, request, |
3cddeff0 YHW |
4552 | ofproto_get_tun_tab(ofproto), |
4553 | &ofproto->vl_mff_map); | |
09246b99 BP |
4554 | if (error) { |
4555 | return error; | |
4556 | } | |
4557 | ||
6a6b7060 BP |
4558 | struct minimatch match; |
4559 | minimatch_init(&match, &fsr.match); | |
4560 | rule_criteria_init(&criteria, fsr.table_id, &match, 0, OVS_VERSION_MAX, | |
2b7b1427 JR |
4561 | fsr.cookie, fsr.cookie_mask, fsr.out_port, |
4562 | fsr.out_group); | |
6a6b7060 | 4563 | minimatch_destroy(&match); |
15aaf599 BP |
4564 | |
4565 | ovs_mutex_lock(&ofproto_mutex); | |
a9b22b7f BP |
4566 | error = collect_rules_loose(ofproto, &criteria, &rules); |
4567 | rule_criteria_destroy(&criteria); | |
15aaf599 BP |
4568 | if (!error) { |
4569 | rule_collection_ref(&rules); | |
4570 | } | |
4571 | ovs_mutex_unlock(&ofproto_mutex); | |
4572 | ||
9ed18e46 BP |
4573 | if (error) { |
4574 | return error; | |
4575 | } | |
5ecc9d81 | 4576 | |
982697a4 | 4577 | ofpmp_init(&replies, request); |
fe59694b JR |
4578 | struct rule *rule; |
4579 | RULE_COLLECTION_FOR_EACH (rule, &rules) { | |
f27f2134 | 4580 | long long int now = time_msec(); |
9ed18e46 | 4581 | struct ofputil_flow_stats fs; |
15aaf599 | 4582 | long long int created, used, modified; |
dc723c44 | 4583 | const struct rule_actions *actions; |
15aaf599 | 4584 | enum ofputil_flow_mod_flags flags; |
a3779dbc | 4585 | |
d10976b7 | 4586 | ovs_mutex_lock(&rule->mutex); |
15aaf599 | 4587 | fs.cookie = rule->flow_cookie; |
a3779dbc EJ |
4588 | fs.idle_timeout = rule->idle_timeout; |
4589 | fs.hard_timeout = rule->hard_timeout; | |
ca26eb44 | 4590 | fs.importance = rule->importance; |
15aaf599 | 4591 | created = rule->created; |
15aaf599 | 4592 | modified = rule->modified; |
06a0f3e2 | 4593 | actions = rule_get_actions(rule); |
15aaf599 | 4594 | flags = rule->flags; |
d10976b7 | 4595 | ovs_mutex_unlock(&rule->mutex); |
a3779dbc | 4596 | |
dc437090 JR |
4597 | ofproto->ofproto_class->rule_get_stats(rule, &fs.packet_count, |
4598 | &fs.byte_count, &used); | |
4599 | ||
15aaf599 BP |
4600 | minimatch_expand(&rule->cr.match, &fs.match); |
4601 | fs.table_id = rule->table_id; | |
4602 | calc_duration(created, now, &fs.duration_sec, &fs.duration_nsec); | |
4603 | fs.priority = rule->cr.priority; | |
4604 | fs.idle_age = age_secs(now - used); | |
4605 | fs.hard_age = age_secs(now - modified); | |
15aaf599 BP |
4606 | fs.ofpacts = actions->ofpacts; |
4607 | fs.ofpacts_len = actions->ofpacts_len; | |
3f517bcd | 4608 | |
15aaf599 | 4609 | fs.flags = flags; |
8d8ab6c2 JG |
4610 | ofputil_append_flow_stats_reply(&fs, &replies, |
4611 | ofproto_get_tun_tab(ofproto)); | |
3c4486a5 | 4612 | } |
15aaf599 BP |
4613 | |
4614 | rule_collection_unref(&rules); | |
a8e547c1 BP |
4615 | rule_collection_destroy(&rules); |
4616 | ||
63f2140a | 4617 | ofconn_send_replies(ofconn, &replies); |
5ecc9d81 | 4618 | |
09246b99 BP |
4619 | return 0; |
4620 | } | |
4621 | ||
4f2cad2c | 4622 | static void |
8d8ab6c2 | 4623 | flow_stats_ds(struct ofproto *ofproto, struct rule *rule, struct ds *results) |
4f2cad2c | 4624 | { |
4f2cad2c | 4625 | uint64_t packet_count, byte_count; |
dc723c44 | 4626 | const struct rule_actions *actions; |
dc437090 | 4627 | long long int created, used; |
4f2cad2c | 4628 | |
dc437090 JR |
4629 | rule->ofproto->ofproto_class->rule_get_stats(rule, &packet_count, |
4630 | &byte_count, &used); | |
4f2cad2c | 4631 | |
15aaf599 | 4632 | ovs_mutex_lock(&rule->mutex); |
06a0f3e2 | 4633 | actions = rule_get_actions(rule); |
15aaf599 BP |
4634 | created = rule->created; |
4635 | ovs_mutex_unlock(&rule->mutex); | |
4636 | ||
6c1491fb BP |
4637 | if (rule->table_id != 0) { |
4638 | ds_put_format(results, "table_id=%"PRIu8", ", rule->table_id); | |
4639 | } | |
15aaf599 | 4640 | ds_put_format(results, "duration=%llds, ", (time_msec() - created) / 1000); |
4f2cad2c JP |
4641 | ds_put_format(results, "n_packets=%"PRIu64", ", packet_count); |
4642 | ds_put_format(results, "n_bytes=%"PRIu64", ", byte_count); | |
50f96b10 | 4643 | cls_rule_format(&rule->cr, ofproto_get_tun_tab(ofproto), NULL, results); |
a5df0e72 | 4644 | ds_put_char(results, ','); |
15aaf599 | 4645 | |
455ecd77 | 4646 | ds_put_cstr(results, "actions="); |
efefbcae BP |
4647 | struct ofpact_format_params fp = { .s = results }; |
4648 | ofpacts_format(actions->ofpacts, actions->ofpacts_len, &fp); | |
15aaf599 | 4649 | |
4f2cad2c JP |
4650 | ds_put_cstr(results, "\n"); |
4651 | } | |
4652 | ||
d295e8e9 | 4653 | /* Adds a pretty-printed description of all flows to 'results', including |
ee8b231c | 4654 | * hidden flows (e.g., set up by in-band control). */ |
4f2cad2c JP |
4655 | void |
4656 | ofproto_get_all_flows(struct ofproto *p, struct ds *results) | |
4657 | { | |
d0918789 | 4658 | struct oftable *table; |
6c1491fb | 4659 | |
d0918789 | 4660 | OFPROTO_FOR_EACH_TABLE (table, p) { |
6c1491fb | 4661 | struct rule *rule; |
064af421 | 4662 | |
5f0476ce | 4663 | CLS_FOR_EACH (rule, cr, &table->cls) { |
8d8ab6c2 | 4664 | flow_stats_ds(p, rule, results); |
6c1491fb | 4665 | } |
064af421 | 4666 | } |
064af421 BP |
4667 | } |
4668 | ||
b5827b24 BP |
4669 | /* Obtains the NetFlow engine type and engine ID for 'ofproto' into |
4670 | * '*engine_type' and '*engine_id', respectively. */ | |
4671 | void | |
4672 | ofproto_get_netflow_ids(const struct ofproto *ofproto, | |
4673 | uint8_t *engine_type, uint8_t *engine_id) | |
4674 | { | |
abe529af | 4675 | ofproto->ofproto_class->get_netflow_ids(ofproto, engine_type, engine_id); |
b5827b24 BP |
4676 | } |
4677 | ||
8f5514fe AW |
4678 | /* Checks the status change of CFM on 'ofport'. |
4679 | * | |
4680 | * Returns true if 'ofproto_class' does not support 'cfm_status_changed'. */ | |
4681 | bool | |
4682 | ofproto_port_cfm_status_changed(struct ofproto *ofproto, ofp_port_t ofp_port) | |
4683 | { | |
4684 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
4685 | return (ofport && ofproto->ofproto_class->cfm_status_changed | |
4686 | ? ofproto->ofproto_class->cfm_status_changed(ofport) | |
4687 | : true); | |
4688 | } | |
4689 | ||
88bf179a AW |
4690 | /* Checks the status of CFM configured on 'ofp_port' within 'ofproto'. |
4691 | * Returns 0 if the port's CFM status was successfully stored into | |
4692 | * '*status'. Returns positive errno if the port did not have CFM | |
8f5514fe | 4693 | * configured. |
9a9e3786 | 4694 | * |
88bf179a AW |
4695 | * The caller must provide and own '*status', and must free 'status->rmps'. |
4696 | * '*status' is indeterminate if the return value is non-zero. */ | |
4697 | int | |
4e022ec0 | 4698 | ofproto_port_get_cfm_status(const struct ofproto *ofproto, ofp_port_t ofp_port, |
685acfd9 | 4699 | struct cfm_status *status) |
3967a833 MM |
4700 | { |
4701 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
88bf179a AW |
4702 | return (ofport && ofproto->ofproto_class->get_cfm_status |
4703 | ? ofproto->ofproto_class->get_cfm_status(ofport, status) | |
4704 | : EOPNOTSUPP); | |
3967a833 MM |
4705 | } |
4706 | ||
90bf1e07 | 4707 | static enum ofperr |
76c93b22 | 4708 | handle_aggregate_stats_request(struct ofconn *ofconn, |
982697a4 | 4709 | const struct ofp_header *oh) |
15aaf599 | 4710 | OVS_EXCLUDED(ofproto_mutex) |
27d34fce | 4711 | { |
76c93b22 | 4712 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
81d1ea94 | 4713 | struct ofputil_flow_stats_request request; |
76c93b22 | 4714 | struct ofputil_aggregate_stats stats; |
5e9d0469 | 4715 | bool unknown_packets, unknown_bytes; |
a9b22b7f | 4716 | struct rule_criteria criteria; |
a8e547c1 | 4717 | struct rule_collection rules; |
76c93b22 | 4718 | struct ofpbuf *reply; |
90bf1e07 | 4719 | enum ofperr error; |
27d34fce | 4720 | |
8d8ab6c2 | 4721 | error = ofputil_decode_flow_stats_request(&request, oh, |
3cddeff0 YHW |
4722 | ofproto_get_tun_tab(ofproto), |
4723 | &ofproto->vl_mff_map); | |
76c93b22 BP |
4724 | if (error) { |
4725 | return error; | |
4726 | } | |
5ecc9d81 | 4727 | |
6a6b7060 BP |
4728 | struct minimatch match; |
4729 | minimatch_init(&match, &request.match); | |
4730 | rule_criteria_init(&criteria, request.table_id, &match, 0, | |
44e0c35d | 4731 | OVS_VERSION_MAX, request.cookie, request.cookie_mask, |
a9b22b7f | 4732 | request.out_port, request.out_group); |
6a6b7060 | 4733 | minimatch_destroy(&match); |
15aaf599 BP |
4734 | |
4735 | ovs_mutex_lock(&ofproto_mutex); | |
a9b22b7f BP |
4736 | error = collect_rules_loose(ofproto, &criteria, &rules); |
4737 | rule_criteria_destroy(&criteria); | |
15aaf599 BP |
4738 | if (!error) { |
4739 | rule_collection_ref(&rules); | |
4740 | } | |
4741 | ovs_mutex_unlock(&ofproto_mutex); | |
4742 | ||
9ed18e46 BP |
4743 | if (error) { |
4744 | return error; | |
4745 | } | |
3c4486a5 | 4746 | |
9ed18e46 | 4747 | memset(&stats, 0, sizeof stats); |
5e9d0469 | 4748 | unknown_packets = unknown_bytes = false; |
fe59694b JR |
4749 | |
4750 | struct rule *rule; | |
4751 | RULE_COLLECTION_FOR_EACH (rule, &rules) { | |
9ed18e46 BP |
4752 | uint64_t packet_count; |
4753 | uint64_t byte_count; | |
dc437090 | 4754 | long long int used; |
5ecc9d81 | 4755 | |
9ed18e46 | 4756 | ofproto->ofproto_class->rule_get_stats(rule, &packet_count, |
dc437090 | 4757 | &byte_count, &used); |
5ecc9d81 | 4758 | |
5e9d0469 BP |
4759 | if (packet_count == UINT64_MAX) { |
4760 | unknown_packets = true; | |
4761 | } else { | |
4762 | stats.packet_count += packet_count; | |
4763 | } | |
4764 | ||
4765 | if (byte_count == UINT64_MAX) { | |
4766 | unknown_bytes = true; | |
4767 | } else { | |
4768 | stats.byte_count += byte_count; | |
4769 | } | |
4770 | ||
9ed18e46 | 4771 | stats.flow_count++; |
3c4486a5 | 4772 | } |
5e9d0469 BP |
4773 | if (unknown_packets) { |
4774 | stats.packet_count = UINT64_MAX; | |
4775 | } | |
4776 | if (unknown_bytes) { | |
4777 | stats.byte_count = UINT64_MAX; | |
4778 | } | |
27d34fce | 4779 | |
15aaf599 | 4780 | rule_collection_unref(&rules); |
a8e547c1 BP |
4781 | rule_collection_destroy(&rules); |
4782 | ||
982697a4 | 4783 | reply = ofputil_encode_aggregate_stats_reply(&stats, oh); |
76c93b22 | 4784 | ofconn_send_reply(ofconn, reply); |
09246b99 BP |
4785 | |
4786 | return 0; | |
4787 | } | |
4788 | ||
c1c9c9c4 | 4789 | struct queue_stats_cbdata { |
ca0f572c | 4790 | struct ofport *ofport; |
ca6ba700 | 4791 | struct ovs_list replies; |
6dc34a0d | 4792 | long long int now; |
c1c9c9c4 BP |
4793 | }; |
4794 | ||
4795 | static void | |
db9220c3 | 4796 | put_queue_stats(struct queue_stats_cbdata *cbdata, uint32_t queue_id, |
c1c9c9c4 BP |
4797 | const struct netdev_queue_stats *stats) |
4798 | { | |
6dc34a0d | 4799 | struct ofputil_queue_stats oqs; |
c1c9c9c4 | 4800 | |
6dc34a0d BP |
4801 | oqs.port_no = cbdata->ofport->pp.port_no; |
4802 | oqs.queue_id = queue_id; | |
4803 | oqs.tx_bytes = stats->tx_bytes; | |
4804 | oqs.tx_packets = stats->tx_packets; | |
4805 | oqs.tx_errors = stats->tx_errors; | |
4806 | if (stats->created != LLONG_MIN) { | |
4807 | calc_duration(stats->created, cbdata->now, | |
4808 | &oqs.duration_sec, &oqs.duration_nsec); | |
4809 | } else { | |
4810 | oqs.duration_sec = oqs.duration_nsec = UINT32_MAX; | |
4811 | } | |
64626975 | 4812 | ofputil_append_queue_stat(&cbdata->replies, &oqs); |
c1c9c9c4 BP |
4813 | } |
4814 | ||
4815 | static void | |
db9220c3 | 4816 | handle_queue_stats_dump_cb(uint32_t queue_id, |
c1c9c9c4 BP |
4817 | struct netdev_queue_stats *stats, |
4818 | void *cbdata_) | |
4819 | { | |
4820 | struct queue_stats_cbdata *cbdata = cbdata_; | |
4821 | ||
4822 | put_queue_stats(cbdata, queue_id, stats); | |
4823 | } | |
4824 | ||
0414d158 | 4825 | static enum ofperr |
ca0f572c | 4826 | handle_queue_stats_for_port(struct ofport *port, uint32_t queue_id, |
c1c9c9c4 BP |
4827 | struct queue_stats_cbdata *cbdata) |
4828 | { | |
ca0f572c | 4829 | cbdata->ofport = port; |
c1c9c9c4 BP |
4830 | if (queue_id == OFPQ_ALL) { |
4831 | netdev_dump_queue_stats(port->netdev, | |
4832 | handle_queue_stats_dump_cb, cbdata); | |
4833 | } else { | |
4834 | struct netdev_queue_stats stats; | |
4835 | ||
1ac788f6 BP |
4836 | if (!netdev_get_queue_stats(port->netdev, queue_id, &stats)) { |
4837 | put_queue_stats(cbdata, queue_id, &stats); | |
0414d158 BP |
4838 | } else { |
4839 | return OFPERR_OFPQOFC_BAD_QUEUE; | |
1ac788f6 | 4840 | } |
c1c9c9c4 | 4841 | } |
0414d158 | 4842 | return 0; |
c1c9c9c4 BP |
4843 | } |
4844 | ||
90bf1e07 | 4845 | static enum ofperr |
63f2140a | 4846 | handle_queue_stats_request(struct ofconn *ofconn, |
982697a4 | 4847 | const struct ofp_header *rq) |
c1c9c9c4 | 4848 | { |
64ff1d96 | 4849 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
c1c9c9c4 | 4850 | struct queue_stats_cbdata cbdata; |
0414d158 | 4851 | struct ofport *port; |
0414d158 | 4852 | enum ofperr error; |
64626975 | 4853 | struct ofputil_queue_stats_request oqsr; |
c1c9c9c4 | 4854 | |
c1c9c9c4 BP |
4855 | COVERAGE_INC(ofproto_queue_req); |
4856 | ||
982697a4 | 4857 | ofpmp_init(&cbdata.replies, rq); |
6dc34a0d | 4858 | cbdata.now = time_msec(); |
c1c9c9c4 | 4859 | |
64626975 SH |
4860 | error = ofputil_decode_queue_stats_request(rq, &oqsr); |
4861 | if (error) { | |
4862 | return error; | |
4863 | } | |
4864 | ||
7f05e7ab | 4865 | if (oqsr.port_no == OFPP_ANY) { |
0414d158 | 4866 | error = OFPERR_OFPQOFC_BAD_QUEUE; |
4e8e4213 | 4867 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
64626975 | 4868 | if (!handle_queue_stats_for_port(port, oqsr.queue_id, &cbdata)) { |
0414d158 BP |
4869 | error = 0; |
4870 | } | |
c1c9c9c4 | 4871 | } |
0414d158 | 4872 | } else { |
64626975 | 4873 | port = ofproto_get_port(ofproto, oqsr.port_no); |
0414d158 | 4874 | error = (port |
64626975 | 4875 | ? handle_queue_stats_for_port(port, oqsr.queue_id, &cbdata) |
0414d158 BP |
4876 | : OFPERR_OFPQOFC_BAD_PORT); |
4877 | } | |
4878 | if (!error) { | |
4879 | ofconn_send_replies(ofconn, &cbdata.replies); | |
c1c9c9c4 | 4880 | } else { |
63f2140a | 4881 | ofpbuf_list_delete(&cbdata.replies); |
c1c9c9c4 | 4882 | } |
c1c9c9c4 | 4883 | |
0414d158 | 4884 | return error; |
c1c9c9c4 | 4885 | } |
7ee20df1 | 4886 | |
2e31a9b8 | 4887 | static enum ofperr |
6787a49f | 4888 | evict_rules_from_table(struct oftable *table) |
15aaf599 | 4889 | OVS_REQUIRES(ofproto_mutex) |
2e31a9b8 | 4890 | { |
802f84ff JR |
4891 | enum ofperr error = 0; |
4892 | struct rule_collection rules; | |
6787a49f | 4893 | unsigned int count = table->n_flows; |
802f84ff JR |
4894 | unsigned int max_flows = table->max_flows; |
4895 | ||
4896 | rule_collection_init(&rules); | |
4897 | ||
4898 | while (count-- > max_flows) { | |
2e31a9b8 | 4899 | struct rule *rule; |
8037acb4 | 4900 | |
2e31a9b8 | 4901 | if (!choose_rule_to_evict(table, &rule)) { |
802f84ff JR |
4902 | error = OFPERR_OFPFMFC_TABLE_FULL; |
4903 | break; | |
2e31a9b8 | 4904 | } else { |
802f84ff JR |
4905 | eviction_group_remove_rule(rule); |
4906 | rule_collection_add(&rules, rule); | |
2e31a9b8 | 4907 | } |
8037acb4 | 4908 | } |
802f84ff | 4909 | delete_flows__(&rules, OFPRR_EVICTION, NULL); |
2e31a9b8 | 4910 | |
802f84ff | 4911 | return error; |
8037acb4 BP |
4912 | } |
4913 | ||
18080541 BP |
4914 | static void |
4915 | get_conjunctions(const struct ofputil_flow_mod *fm, | |
4916 | struct cls_conjunction **conjsp, size_t *n_conjsp) | |
18080541 BP |
4917 | { |
4918 | struct cls_conjunction *conjs = NULL; | |
4919 | int n_conjs = 0; | |
4920 | ||
f08e39dd BP |
4921 | const struct ofpact *ofpact; |
4922 | OFPACT_FOR_EACH (ofpact, fm->ofpacts, fm->ofpacts_len) { | |
4923 | if (ofpact->type == OFPACT_CONJUNCTION) { | |
18080541 | 4924 | n_conjs++; |
f08e39dd BP |
4925 | } else if (ofpact->type != OFPACT_NOTE) { |
4926 | /* "conjunction" may appear with "note" actions but not with any | |
4927 | * other type of actions. */ | |
4928 | ovs_assert(!n_conjs); | |
4929 | break; | |
18080541 | 4930 | } |
f08e39dd BP |
4931 | } |
4932 | if (n_conjs) { | |
4933 | int i = 0; | |
18080541 BP |
4934 | |
4935 | conjs = xzalloc(n_conjs * sizeof *conjs); | |
18080541 | 4936 | OFPACT_FOR_EACH (ofpact, fm->ofpacts, fm->ofpacts_len) { |
f08e39dd BP |
4937 | if (ofpact->type == OFPACT_CONJUNCTION) { |
4938 | struct ofpact_conjunction *oc = ofpact_get_CONJUNCTION(ofpact); | |
4939 | conjs[i].clause = oc->clause; | |
4940 | conjs[i].n_clauses = oc->n_clauses; | |
4941 | conjs[i].id = oc->id; | |
4942 | i++; | |
4943 | } | |
18080541 BP |
4944 | } |
4945 | } | |
4946 | ||
4947 | *conjsp = conjs; | |
4948 | *n_conjsp = n_conjs; | |
4949 | } | |
4950 | ||
5bacd5cd JR |
4951 | /* add_flow_init(), add_flow_start(), add_flow_revert(), and add_flow_finish() |
4952 | * implement OFPFC_ADD and the cases for OFPFC_MODIFY and OFPFC_MODIFY_STRICT | |
1f42be1c JR |
4953 | * in which no matching flow already exists in the flow table. |
4954 | * | |
5bacd5cd JR |
4955 | * add_flow_init() creates a new flow according to 'fm' and stores it to 'ofm' |
4956 | * for later reference. If the flow replaces other flow, it will be updated to | |
4957 | * match modify semantics later by add_flow_start() (by calling | |
4958 | * replace_rule_start()). | |
1f42be1c | 4959 | * |
5bacd5cd | 4960 | * Returns 0 on success, or an OpenFlow error code on failure. |
1f42be1c | 4961 | * |
5bacd5cd JR |
4962 | * On successful return the caller must complete the operation by calling |
4963 | * add_flow_start(), and if that succeeds, then either add_flow_finish(), or | |
4964 | * add_flow_revert() if the operation needs to be reverted due to a later | |
4965 | * failure. | |
4966 | */ | |
90bf1e07 | 4967 | static enum ofperr |
5bacd5cd JR |
4968 | add_flow_init(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
4969 | const struct ofputil_flow_mod *fm) | |
4970 | OVS_EXCLUDED(ofproto_mutex) | |
064af421 | 4971 | { |
d0918789 | 4972 | struct oftable *table; |
8037acb4 | 4973 | struct cls_rule cr; |
5a361239 | 4974 | uint8_t table_id; |
39c94593 | 4975 | enum ofperr error; |
064af421 | 4976 | |
554764d1 | 4977 | if (!check_table_id(ofproto, fm->table_id)) { |
5bacd5cd | 4978 | return OFPERR_OFPBRC_BAD_TABLE_ID; |
48266274 BP |
4979 | } |
4980 | ||
7ee20df1 BP |
4981 | /* Pick table. */ |
4982 | if (fm->table_id == 0xff) { | |
13521ff5 | 4983 | if (ofproto->ofproto_class->rule_choose_table) { |
81a76618 BP |
4984 | error = ofproto->ofproto_class->rule_choose_table(ofproto, |
4985 | &fm->match, | |
7ee20df1 BP |
4986 | &table_id); |
4987 | if (error) { | |
4988 | return error; | |
4989 | } | |
cb22974d | 4990 | ovs_assert(table_id < ofproto->n_tables); |
7ee20df1 | 4991 | } else { |
5a361239 | 4992 | table_id = 0; |
7ee20df1 BP |
4993 | } |
4994 | } else if (fm->table_id < ofproto->n_tables) { | |
5a361239 | 4995 | table_id = fm->table_id; |
7ee20df1 | 4996 | } else { |
c22c56bd | 4997 | return OFPERR_OFPBRC_BAD_TABLE_ID; |
064af421 BP |
4998 | } |
4999 | ||
5a361239 | 5000 | table = &ofproto->tables[table_id]; |
834fe5cb BP |
5001 | if (table->flags & OFTABLE_READONLY |
5002 | && !(fm->flags & OFPUTIL_FF_NO_READONLY)) { | |
5c67e4af BP |
5003 | return OFPERR_OFPBRC_EPERM; |
5004 | } | |
5005 | ||
c84d8691 | 5006 | if (!(fm->flags & OFPUTIL_FF_HIDDEN_FIELDS) |
6a6b7060 | 5007 | && !minimatch_has_default_hidden_fields(&fm->match)) { |
c84d8691 JR |
5008 | VLOG_WARN_RL(&rl, "%s: (add_flow) only internal flows can set " |
5009 | "non-default values to hidden fields", ofproto->name); | |
5010 | return OFPERR_OFPBRC_EPERM; | |
adcf00ba AZ |
5011 | } |
5012 | ||
2c7ee524 | 5013 | if (!ofm->temp_rule) { |
6a6b7060 | 5014 | cls_rule_init_from_minimatch(&cr, &fm->match, fm->priority); |
8037acb4 | 5015 | |
2c7ee524 | 5016 | /* Allocate new rule. Destroys 'cr'. */ |
6a6b7060 | 5017 | uint64_t map = miniflow_get_tun_metadata_present_map(fm->match.flow); |
2c7ee524 JR |
5018 | error = ofproto_rule_create(ofproto, &cr, table - ofproto->tables, |
5019 | fm->new_cookie, fm->idle_timeout, | |
5020 | fm->hard_timeout, fm->flags, | |
5021 | fm->importance, fm->ofpacts, | |
6a6b7060 | 5022 | fm->ofpacts_len, map, |
5c7c16d8 | 5023 | fm->ofpacts_tlv_bitmap, &ofm->temp_rule); |
2c7ee524 JR |
5024 | if (error) { |
5025 | return error; | |
5026 | } | |
5bacd5cd | 5027 | |
2c7ee524 JR |
5028 | get_conjunctions(fm, &ofm->conjs, &ofm->n_conjs); |
5029 | } | |
5bacd5cd JR |
5030 | return 0; |
5031 | } | |
5032 | ||
2c7ee524 | 5033 | /* ofm->temp_rule is consumed only in the successful case. */ |
5bacd5cd JR |
5034 | static enum ofperr |
5035 | add_flow_start(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) | |
5036 | OVS_REQUIRES(ofproto_mutex) | |
5037 | { | |
5038 | struct rule *old_rule = NULL; | |
5039 | struct rule *new_rule = ofm->temp_rule; | |
5040 | const struct rule_actions *actions = rule_get_actions(new_rule); | |
5041 | struct oftable *table = &ofproto->tables[new_rule->table_id]; | |
5042 | enum ofperr error; | |
5043 | ||
5044 | /* Must check actions while holding ofproto_mutex to avoid a race. */ | |
5045 | error = ofproto_check_ofpacts(ofproto, actions->ofpacts, | |
5046 | actions->ofpacts_len); | |
5047 | if (error) { | |
5048 | return error; | |
5049 | } | |
5050 | ||
1f42be1c | 5051 | /* Check for the existence of an identical rule. |
2b7b1427 | 5052 | * This will not return rules earlier marked for removal. */ |
5bacd5cd JR |
5053 | old_rule = rule_from_cls_rule(classifier_find_rule_exactly(&table->cls, |
5054 | &new_rule->cr, | |
5055 | ofm->version)); | |
5056 | if (!old_rule) { | |
c84d8691 | 5057 | /* Check for overlap, if requested. */ |
5bacd5cd JR |
5058 | if (new_rule->flags & OFPUTIL_FF_CHECK_OVERLAP |
5059 | && classifier_rule_overlaps(&table->cls, &new_rule->cr, | |
5060 | ofm->version)) { | |
c84d8691 | 5061 | return OFPERR_OFPFMFC_OVERLAP; |
dd27be82 | 5062 | } |
b277c7cc | 5063 | |
c84d8691 | 5064 | /* If necessary, evict an existing rule to clear out space. */ |
6787a49f | 5065 | if (table->n_flows >= table->max_flows) { |
5bacd5cd JR |
5066 | if (!choose_rule_to_evict(table, &old_rule)) { |
5067 | return OFPERR_OFPFMFC_TABLE_FULL; | |
6787a49f | 5068 | } |
5bacd5cd JR |
5069 | eviction_group_remove_rule(old_rule); |
5070 | /* Marks 'old_rule' as an evicted rule rather than replaced rule. | |
6787a49f | 5071 | */ |
5bacd5cd | 5072 | old_rule->removed_reason = OFPRR_EVICTION; |
c09f755d | 5073 | } |
39c94593 | 5074 | } else { |
7338102b | 5075 | ofm->modify_cookie = true; |
39c94593 | 5076 | } |
81a76618 | 5077 | |
5bacd5cd JR |
5078 | if (old_rule) { |
5079 | rule_collection_add(&ofm->old_rules, old_rule); | |
064af421 | 5080 | } |
5bacd5cd | 5081 | /* Take ownership of the temp_rule. */ |
58026109 | 5082 | rule_collection_add(&ofm->new_rules, new_rule); |
5bacd5cd | 5083 | ofm->temp_rule = NULL; |
8037acb4 | 5084 | |
5bacd5cd | 5085 | replace_rule_start(ofproto, ofm, old_rule, new_rule); |
c84d8691 JR |
5086 | return 0; |
5087 | } | |
1ebeaaa7 | 5088 | |
6787a49f | 5089 | /* Revert the effects of add_flow_start(). */ |
1f42be1c | 5090 | static void |
8be00367 | 5091 | add_flow_revert(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
1f42be1c JR |
5092 | OVS_REQUIRES(ofproto_mutex) |
5093 | { | |
5bacd5cd | 5094 | struct rule *old_rule = rule_collection_n(&ofm->old_rules) |
58026109 JR |
5095 | ? rule_collection_rules(&ofm->old_rules)[0] : NULL; |
5096 | struct rule *new_rule = rule_collection_rules(&ofm->new_rules)[0]; | |
8be00367 | 5097 | |
39c94593 | 5098 | replace_rule_revert(ofproto, old_rule, new_rule); |
1f42be1c JR |
5099 | } |
5100 | ||
39c94593 | 5101 | /* To be called after version bump. */ |
c84d8691 | 5102 | static void |
8be00367 | 5103 | add_flow_finish(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
0a0d9385 | 5104 | const struct openflow_mod_requester *req) |
c84d8691 JR |
5105 | OVS_REQUIRES(ofproto_mutex) |
5106 | { | |
5bacd5cd | 5107 | struct rule *old_rule = rule_collection_n(&ofm->old_rules) |
58026109 JR |
5108 | ? rule_collection_rules(&ofm->old_rules)[0] : NULL; |
5109 | struct rule *new_rule = rule_collection_rules(&ofm->new_rules)[0]; | |
39c94593 | 5110 | struct ovs_list dead_cookies = OVS_LIST_INITIALIZER(&dead_cookies); |
8037acb4 | 5111 | |
81dee635 | 5112 | replace_rule_finish(ofproto, ofm, req, old_rule, new_rule, &dead_cookies); |
39c94593 | 5113 | learned_cookies_flush(ofproto, &dead_cookies); |
802f84ff | 5114 | |
39c94593 JR |
5115 | if (old_rule) { |
5116 | ovsrcu_postpone(remove_rule_rcu, old_rule); | |
5117 | } else { | |
39c94593 | 5118 | ofmonitor_report(ofproto->connmgr, new_rule, NXFME_ADDED, 0, |
c84d8691 JR |
5119 | req ? req->ofconn : NULL, |
5120 | req ? req->request->xid : 0, NULL); | |
6c6eedc5 SJ |
5121 | |
5122 | /* Send Vacancy Events for OF1.4+. */ | |
5123 | send_table_status(ofproto, new_rule->table_id); | |
c84d8691 | 5124 | } |
c84d8691 | 5125 | } |
79eee1eb BP |
5126 | \f |
5127 | /* OFPFC_MODIFY and OFPFC_MODIFY_STRICT. */ | |
064af421 | 5128 | |
5bacd5cd | 5129 | /* Create a new rule. Note that the rule is NOT inserted into a any data |
2c7ee524 JR |
5130 | * structures yet. Takes ownership of 'cr'. Only assigns '*new_rule' if |
5131 | * successful. */ | |
90bf1e07 | 5132 | static enum ofperr |
5bacd5cd JR |
5133 | ofproto_rule_create(struct ofproto *ofproto, struct cls_rule *cr, |
5134 | uint8_t table_id, ovs_be64 new_cookie, | |
5135 | uint16_t idle_timeout, uint16_t hard_timeout, | |
5136 | enum ofputil_flow_mod_flags flags, uint16_t importance, | |
5137 | const struct ofpact *ofpacts, size_t ofpacts_len, | |
5c7c16d8 | 5138 | uint64_t match_tlv_bitmap, uint64_t ofpacts_tlv_bitmap, |
5bacd5cd JR |
5139 | struct rule **new_rule) |
5140 | OVS_NO_THREAD_SAFETY_ANALYSIS | |
79eee1eb | 5141 | { |
39c94593 | 5142 | struct rule *rule; |
dd27be82 | 5143 | enum ofperr error; |
79eee1eb | 5144 | |
39c94593 JR |
5145 | /* Allocate new rule. */ |
5146 | rule = ofproto->ofproto_class->rule_alloc(); | |
5147 | if (!rule) { | |
5148 | cls_rule_destroy(cr); | |
5149 | VLOG_WARN_RL(&rl, "%s: failed to allocate a rule.", ofproto->name); | |
5150 | return OFPERR_OFPFMFC_UNKNOWN; | |
af822017 BP |
5151 | } |
5152 | ||
39c94593 JR |
5153 | /* Initialize base state. */ |
5154 | *CONST_CAST(struct ofproto **, &rule->ofproto) = ofproto; | |
5155 | cls_rule_move(CONST_CAST(struct cls_rule *, &rule->cr), cr); | |
5156 | ovs_refcount_init(&rule->ref_count); | |
834fe5cb | 5157 | |
39c94593 JR |
5158 | ovs_mutex_init(&rule->mutex); |
5159 | ovs_mutex_lock(&rule->mutex); | |
82a3160e | 5160 | *CONST_CAST(ovs_be64 *, &rule->flow_cookie) = new_cookie; |
5bacd5cd JR |
5161 | rule->created = rule->modified = time_msec(); |
5162 | rule->idle_timeout = idle_timeout; | |
5163 | rule->hard_timeout = hard_timeout; | |
5164 | *CONST_CAST(uint16_t *, &rule->importance) = importance; | |
f695ebfa | 5165 | rule->removed_reason = OVS_OFPRR_NONE; |
834fe5cb | 5166 | |
39c94593 | 5167 | *CONST_CAST(uint8_t *, &rule->table_id) = table_id; |
5bacd5cd JR |
5168 | rule->flags = flags & OFPUTIL_FF_STATE; |
5169 | ||
39c94593 | 5170 | *CONST_CAST(const struct rule_actions **, &rule->actions) |
5bacd5cd JR |
5171 | = rule_actions_create(ofpacts, ofpacts_len); |
5172 | ||
417e7e66 | 5173 | ovs_list_init(&rule->meter_list_node); |
39c94593 | 5174 | rule->eviction_group = NULL; |
39c94593 JR |
5175 | rule->monitor_flags = 0; |
5176 | rule->add_seqno = 0; | |
5177 | rule->modify_seqno = 0; | |
5bacd5cd | 5178 | ovs_list_init(&rule->expirable); |
dd27be82 JR |
5179 | ovs_mutex_unlock(&rule->mutex); |
5180 | ||
39c94593 JR |
5181 | /* Construct rule, initializing derived state. */ |
5182 | error = ofproto->ofproto_class->rule_construct(rule); | |
5183 | if (error) { | |
5184 | ofproto_rule_destroy__(rule); | |
5185 | return error; | |
dd27be82 | 5186 | } |
b277c7cc | 5187 | |
30d0452c | 5188 | rule->state = RULE_INITIALIZED; |
5c7c16d8 YHW |
5189 | rule->match_tlv_bitmap = match_tlv_bitmap; |
5190 | rule->ofpacts_tlv_bitmap = ofpacts_tlv_bitmap; | |
5191 | mf_vl_mff_ref(&rule->ofproto->vl_mff_map, match_tlv_bitmap); | |
5192 | mf_vl_mff_ref(&rule->ofproto->vl_mff_map, ofpacts_tlv_bitmap); | |
dd27be82 | 5193 | |
39c94593 JR |
5194 | *new_rule = rule; |
5195 | return 0; | |
5196 | } | |
884e1dc4 | 5197 | |
2c7ee524 JR |
5198 | /* Initialize 'ofm' for a learn action. If the rule already existed, reference |
5199 | * to that rule is taken, otherwise a new rule is created. 'ofm' keeps the | |
5200 | * rule reference in both. This does not take the global 'ofproto_mutex'. */ | |
5201 | enum ofperr | |
5202 | ofproto_flow_mod_init_for_learn(struct ofproto *ofproto, | |
5203 | const struct ofputil_flow_mod *fm, | |
5204 | struct ofproto_flow_mod *ofm) | |
5205 | OVS_EXCLUDED(ofproto_mutex) | |
5206 | { | |
2c7ee524 JR |
5207 | /* Reject flow mods that do not look like they were generated by a learn |
5208 | * action. */ | |
5209 | if (fm->command != OFPFC_MODIFY_STRICT || fm->table_id == OFPTT_ALL | |
5210 | || fm->flags & OFPUTIL_FF_RESET_COUNTS | |
5211 | || fm->buffer_id != UINT32_MAX) { | |
5212 | return OFPERR_OFPFMFC_UNKNOWN; | |
5213 | } | |
5214 | ||
5215 | /* Check if the rule already exists, and we can get a reference to it. */ | |
5216 | struct oftable *table = &ofproto->tables[fm->table_id]; | |
5217 | struct rule *rule; | |
5218 | ||
6a6b7060 | 5219 | rule = rule_from_cls_rule(classifier_find_minimatch_exactly( |
2c7ee524 JR |
5220 | &table->cls, &fm->match, fm->priority, |
5221 | OVS_VERSION_MAX)); | |
5222 | if (rule) { | |
5223 | /* Check if the rule's attributes match as well. */ | |
5224 | const struct rule_actions *actions; | |
5225 | ||
5226 | ovs_mutex_lock(&rule->mutex); | |
5227 | actions = rule_get_actions(rule); | |
5228 | if (rule->idle_timeout == fm->idle_timeout | |
5229 | && rule->hard_timeout == fm->hard_timeout | |
5230 | && rule->importance == fm->importance | |
5231 | && rule->flags == (fm->flags & OFPUTIL_FF_STATE) | |
5232 | && (!fm->modify_cookie || (fm->new_cookie == rule->flow_cookie)) | |
5233 | && ofpacts_equal(fm->ofpacts, fm->ofpacts_len, | |
5234 | actions->ofpacts, actions->ofpacts_len)) { | |
5235 | /* Rule already exists and need not change, except for the modified | |
5236 | * timestamp. Get a reference to the existing rule. */ | |
5237 | ovs_mutex_unlock(&rule->mutex); | |
5238 | if (!ofproto_rule_try_ref(rule)) { | |
5239 | rule = NULL; /* Pretend it did not exist. */ | |
5240 | } | |
5241 | } else { | |
5242 | ovs_mutex_unlock(&rule->mutex); | |
5243 | rule = NULL; | |
5244 | } | |
5245 | } | |
5246 | ||
6399df6a | 5247 | return ofproto_flow_mod_init(ofproto, ofm, fm, rule); |
2c7ee524 JR |
5248 | } |
5249 | ||
2c7ee524 | 5250 | enum ofperr |
1f4a8933 | 5251 | ofproto_flow_mod_learn_refresh(struct ofproto_flow_mod *ofm) |
2c7ee524 JR |
5252 | { |
5253 | enum ofperr error = 0; | |
5254 | ||
5255 | /* ofm->temp_rule is our reference to the learned rule. We have a | |
5256 | * reference to an existing rule, if it already was in the classifier, | |
5257 | * otherwise we may have a fresh rule that we need to insert. */ | |
5258 | struct rule *rule = ofm->temp_rule; | |
5259 | if (!rule) { | |
5260 | return OFPERR_OFPFMFC_UNKNOWN; | |
5261 | } | |
2c7ee524 JR |
5262 | |
5263 | /* Create a new rule if the current one has been removed from the | |
5264 | * classifier. We need to do this since RCU does not allow a current rule | |
5265 | * to be reinserted before all threads have quiesced. | |
5266 | * | |
5267 | * It is possible that the rule is removed asynchronously, e.g., right | |
1f4a8933 | 5268 | * after we have read the 'rule->state' below. In this case the next time |
2c7ee524 | 5269 | * this function is executed the rule will be reinstated. */ |
1f4a8933 | 5270 | if (rule->state == RULE_REMOVED) { |
2c7ee524 JR |
5271 | struct cls_rule cr; |
5272 | ||
5273 | cls_rule_clone(&cr, &rule->cr); | |
5274 | ovs_mutex_lock(&rule->mutex); | |
1f4a8933 | 5275 | error = ofproto_rule_create(rule->ofproto, &cr, rule->table_id, |
2c7ee524 JR |
5276 | rule->flow_cookie, |
5277 | rule->idle_timeout, | |
5278 | rule->hard_timeout, rule->flags, | |
5279 | rule->importance, | |
5280 | rule->actions->ofpacts, | |
5281 | rule->actions->ofpacts_len, | |
5c7c16d8 YHW |
5282 | rule->match_tlv_bitmap, |
5283 | rule->ofpacts_tlv_bitmap, | |
2c7ee524 JR |
5284 | &ofm->temp_rule); |
5285 | ovs_mutex_unlock(&rule->mutex); | |
2c7ee524 | 5286 | if (!error) { |
1f4a8933 | 5287 | ofproto_rule_unref(rule); /* Release old reference. */ |
2c7ee524 | 5288 | } |
2c7ee524 JR |
5289 | } else { |
5290 | /* Refresh the existing rule. */ | |
5291 | ovs_mutex_lock(&rule->mutex); | |
5292 | rule->modified = time_msec(); | |
5293 | ovs_mutex_unlock(&rule->mutex); | |
5294 | } | |
1f4a8933 JR |
5295 | return error; |
5296 | } | |
5297 | ||
5298 | enum ofperr | |
5299 | ofproto_flow_mod_learn_start(struct ofproto_flow_mod *ofm) | |
5300 | OVS_REQUIRES(ofproto_mutex) | |
5301 | { | |
5302 | struct rule *rule = ofm->temp_rule; | |
5303 | ||
5304 | /* ofproto_flow_mod_start() consumes the reference, so we | |
5305 | * take a new one. */ | |
5306 | ofproto_rule_ref(rule); | |
5307 | enum ofperr error = ofproto_flow_mod_start(rule->ofproto, ofm); | |
5308 | ofm->temp_rule = rule; | |
5309 | ||
5310 | return error; | |
5311 | } | |
5312 | ||
6dd3c787 JR |
5313 | void |
5314 | ofproto_flow_mod_learn_revert(struct ofproto_flow_mod *ofm) | |
5315 | OVS_REQUIRES(ofproto_mutex) | |
5316 | { | |
5317 | struct rule *rule = rule_collection_rules(&ofm->new_rules)[0]; | |
5318 | ofproto_flow_mod_revert(rule->ofproto, ofm); | |
5319 | } | |
5320 | ||
1f4a8933 JR |
5321 | void |
5322 | ofproto_flow_mod_learn_finish(struct ofproto_flow_mod *ofm, | |
5323 | struct ofproto *orig_ofproto) | |
5324 | OVS_REQUIRES(ofproto_mutex) | |
5325 | { | |
5326 | struct rule *rule = rule_collection_rules(&ofm->new_rules)[0]; | |
5327 | ||
5328 | /* If learning on a different bridge, must bump its version | |
5329 | * number and flush connmgr afterwards. */ | |
5330 | if (rule->ofproto != orig_ofproto) { | |
5331 | ofproto_bump_tables_version(rule->ofproto); | |
5332 | } | |
5333 | ofproto_flow_mod_finish(rule->ofproto, ofm, NULL); | |
5334 | if (rule->ofproto != orig_ofproto) { | |
5335 | ofmonitor_flush(rule->ofproto->connmgr); | |
5336 | } | |
5337 | } | |
5338 | ||
5339 | /* Refresh 'ofm->temp_rule', for which the caller holds a reference, if already | |
5340 | * in the classifier, insert it otherwise. If the rule has already been | |
5341 | * removed from the classifier, a new rule is created using 'ofm->temp_rule' as | |
5342 | * a template and the reference to the old 'ofm->temp_rule' is freed. If | |
5343 | * 'keep_ref' is true, then a reference to the current rule is held, otherwise | |
5344 | * it is released and 'ofm->temp_rule' is set to NULL. | |
5345 | * | |
4c71600d DDP |
5346 | * If 'limit' != 0, insertion will fail if there are more than 'limit' rules |
5347 | * in the same table with the same cookie. If insertion succeeds, | |
86b7637c JS |
5348 | * '*below_limitp' will be set to true. If insertion fails '*below_limitp' |
5349 | * will be set to false. | |
4c71600d | 5350 | * |
1f4a8933 JR |
5351 | * Caller needs to be the exclusive owner of 'ofm' as it is being manipulated |
5352 | * during the call. */ | |
5353 | enum ofperr | |
4c71600d | 5354 | ofproto_flow_mod_learn(struct ofproto_flow_mod *ofm, bool keep_ref, |
86b7637c | 5355 | unsigned limit, bool *below_limitp) |
1f4a8933 JR |
5356 | OVS_EXCLUDED(ofproto_mutex) |
5357 | { | |
5358 | enum ofperr error = ofproto_flow_mod_learn_refresh(ofm); | |
5359 | struct rule *rule = ofm->temp_rule; | |
86b7637c | 5360 | bool below_limit = true; |
1f4a8933 JR |
5361 | |
5362 | /* Do we need to insert the rule? */ | |
5363 | if (!error && rule->state == RULE_INITIALIZED) { | |
5364 | ovs_mutex_lock(&ofproto_mutex); | |
4c71600d DDP |
5365 | |
5366 | if (limit) { | |
5367 | struct rule_criteria criteria; | |
5368 | struct rule_collection rules; | |
6a6b7060 | 5369 | struct minimatch match; |
4c71600d | 5370 | |
6a6b7060 | 5371 | minimatch_init_catchall(&match); |
4c71600d DDP |
5372 | rule_criteria_init(&criteria, rule->table_id, &match, 0, |
5373 | OVS_VERSION_MAX, rule->flow_cookie, | |
5374 | OVS_BE64_MAX, OFPP_ANY, OFPG_ANY); | |
6a6b7060 BP |
5375 | minimatch_destroy(&match); |
5376 | ||
4c71600d DDP |
5377 | rule_criteria_require_rw(&criteria, false); |
5378 | collect_rules_loose(rule->ofproto, &criteria, &rules); | |
5379 | if (rule_collection_n(&rules) >= limit) { | |
86b7637c | 5380 | below_limit = false; |
4c71600d DDP |
5381 | } |
5382 | rule_collection_destroy(&rules); | |
5383 | rule_criteria_destroy(&criteria); | |
5384 | } | |
5385 | ||
86b7637c | 5386 | if (below_limit) { |
4c71600d DDP |
5387 | ofm->version = rule->ofproto->tables_version + 1; |
5388 | ||
5389 | error = ofproto_flow_mod_learn_start(ofm); | |
5390 | if (!error) { | |
5391 | ofproto_flow_mod_learn_finish(ofm, NULL); | |
5392 | } | |
5393 | } else { | |
7ed58d4a JP |
5394 | static struct vlog_rate_limit rll = VLOG_RATE_LIMIT_INIT(1, 5); |
5395 | VLOG_INFO_RL(&rll, "Learn limit for flow %"PRIu64" reached.", | |
05b1dd23 BP |
5396 | rule->flow_cookie); |
5397 | ||
4c71600d | 5398 | ofproto_flow_mod_uninit(ofm); |
1f4a8933 JR |
5399 | } |
5400 | ovs_mutex_unlock(&ofproto_mutex); | |
5401 | } | |
2c7ee524 | 5402 | |
86b7637c | 5403 | if (!keep_ref && below_limit) { |
2c7ee524 JR |
5404 | ofproto_rule_unref(rule); |
5405 | ofm->temp_rule = NULL; | |
5406 | } | |
86b7637c JS |
5407 | if (below_limitp) { |
5408 | *below_limitp = below_limit; | |
4c71600d | 5409 | } |
2c7ee524 JR |
5410 | return error; |
5411 | } | |
5412 | ||
39c94593 | 5413 | static void |
5bacd5cd JR |
5414 | replace_rule_start(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
5415 | struct rule *old_rule, struct rule *new_rule) | |
39c94593 JR |
5416 | { |
5417 | struct oftable *table = &ofproto->tables[new_rule->table_id]; | |
834fe5cb | 5418 | |
6787a49f | 5419 | /* 'old_rule' may be either an evicted rule or replaced rule. */ |
39c94593 | 5420 | if (old_rule) { |
5bacd5cd JR |
5421 | /* Copy values from old rule for modify semantics. */ |
5422 | if (old_rule->removed_reason != OFPRR_EVICTION) { | |
5423 | bool change_cookie = (ofm->modify_cookie | |
5424 | && new_rule->flow_cookie != OVS_BE64_MAX | |
5425 | && new_rule->flow_cookie != old_rule->flow_cookie); | |
5426 | ||
5427 | ovs_mutex_lock(&new_rule->mutex); | |
5428 | ovs_mutex_lock(&old_rule->mutex); | |
5429 | if (ofm->command != OFPFC_ADD) { | |
5430 | new_rule->idle_timeout = old_rule->idle_timeout; | |
5431 | new_rule->hard_timeout = old_rule->hard_timeout; | |
5432 | *CONST_CAST(uint16_t *, &new_rule->importance) = old_rule->importance; | |
5433 | new_rule->flags = old_rule->flags; | |
5434 | new_rule->created = old_rule->created; | |
5435 | } | |
5436 | if (!change_cookie) { | |
82a3160e BP |
5437 | *CONST_CAST(ovs_be64 *, &new_rule->flow_cookie) |
5438 | = old_rule->flow_cookie; | |
5bacd5cd JR |
5439 | } |
5440 | ovs_mutex_unlock(&old_rule->mutex); | |
5441 | ovs_mutex_unlock(&new_rule->mutex); | |
5442 | } | |
5443 | ||
39c94593 | 5444 | /* Mark the old rule for removal in the next version. */ |
5bacd5cd | 5445 | cls_rule_make_invisible_in_version(&old_rule->cr, ofm->version); |
9bab38ff JR |
5446 | |
5447 | /* Remove the old rule from data structures. */ | |
5448 | ofproto_rule_remove__(ofproto, old_rule); | |
d79e3d70 JR |
5449 | } else { |
5450 | table->n_flows++; | |
dd27be82 | 5451 | } |
cc099268 JR |
5452 | /* Insert flow to ofproto data structures, so that later flow_mods may |
5453 | * relate to it. This is reversible, in case later errors require this to | |
39c94593 JR |
5454 | * be reverted. */ |
5455 | ofproto_rule_insert__(ofproto, new_rule); | |
5456 | /* Make the new rule visible for classifier lookups only from the next | |
5457 | * version. */ | |
5bacd5cd JR |
5458 | classifier_insert(&table->cls, &new_rule->cr, ofm->version, ofm->conjs, |
5459 | ofm->n_conjs); | |
39c94593 JR |
5460 | } |
5461 | ||
cc099268 JR |
5462 | static void |
5463 | replace_rule_revert(struct ofproto *ofproto, | |
5464 | struct rule *old_rule, struct rule *new_rule) | |
39c94593 JR |
5465 | { |
5466 | struct oftable *table = &ofproto->tables[new_rule->table_id]; | |
35f48b8b | 5467 | |
39c94593 | 5468 | if (old_rule) { |
5bacd5cd JR |
5469 | if (old_rule->removed_reason == OFPRR_EVICTION) { |
5470 | /* Revert the eviction. */ | |
5471 | eviction_group_add_rule(old_rule); | |
5472 | } | |
5473 | ||
9bab38ff JR |
5474 | /* Restore the old rule to data structures. */ |
5475 | ofproto_rule_insert__(ofproto, old_rule); | |
5476 | ||
d79e3d70 | 5477 | /* Restore the original visibility of the old rule. */ |
39c94593 | 5478 | cls_rule_restore_visibility(&old_rule->cr); |
d79e3d70 JR |
5479 | } else { |
5480 | /* Restore table's rule count. */ | |
5481 | table->n_flows--; | |
834fe5cb BP |
5482 | } |
5483 | ||
39c94593 | 5484 | /* Remove the new rule immediately. It was never visible to lookups. */ |
46ab60bf | 5485 | classifier_remove_assert(&table->cls, &new_rule->cr); |
39c94593 | 5486 | ofproto_rule_remove__(ofproto, new_rule); |
39c94593 | 5487 | ofproto_rule_unref(new_rule); |
dd27be82 | 5488 | } |
79eee1eb | 5489 | |
39c94593 | 5490 | /* Adds the 'new_rule', replacing the 'old_rule'. */ |
dd27be82 | 5491 | static void |
81dee635 | 5492 | replace_rule_finish(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
0a0d9385 | 5493 | const struct openflow_mod_requester *req, |
39c94593 JR |
5494 | struct rule *old_rule, struct rule *new_rule, |
5495 | struct ovs_list *dead_cookies) | |
dd27be82 JR |
5496 | OVS_REQUIRES(ofproto_mutex) |
5497 | { | |
6787a49f JR |
5498 | struct rule *replaced_rule; |
5499 | ||
5aacc3e2 JR |
5500 | replaced_rule = (old_rule && old_rule->removed_reason != OFPRR_EVICTION) |
5501 | ? old_rule : NULL; | |
dd27be82 | 5502 | |
6787a49f JR |
5503 | /* Insert the new flow to the ofproto provider. A non-NULL 'replaced_rule' |
5504 | * is a duplicate rule the 'new_rule' is replacing. The provider should | |
748eb2f5 | 5505 | * link the packet and byte counts from the old rule to the new one if |
8b6987d7 JR |
5506 | * 'modify_keep_counts' is 'true'. The 'replaced_rule' will be deleted |
5507 | * right after this call. */ | |
6787a49f | 5508 | ofproto->ofproto_class->rule_insert(new_rule, replaced_rule, |
8b6987d7 | 5509 | ofm->modify_keep_counts); |
39c94593 JR |
5510 | learned_cookies_inc(ofproto, rule_get_actions(new_rule)); |
5511 | ||
5512 | if (old_rule) { | |
5513 | const struct rule_actions *old_actions = rule_get_actions(old_rule); | |
81dee635 | 5514 | const struct rule_actions *new_actions = rule_get_actions(new_rule); |
39c94593 | 5515 | |
39c94593 JR |
5516 | learned_cookies_dec(ofproto, old_actions, dead_cookies); |
5517 | ||
6787a49f | 5518 | if (replaced_rule) { |
5bacd5cd JR |
5519 | enum nx_flow_update_event event = ofm->command == OFPFC_ADD |
5520 | ? NXFME_ADDED : NXFME_MODIFIED; | |
5521 | ||
81dee635 JR |
5522 | bool changed_cookie = (new_rule->flow_cookie |
5523 | != old_rule->flow_cookie); | |
6787a49f | 5524 | |
81dee635 JR |
5525 | bool changed_actions = !ofpacts_equal(new_actions->ofpacts, |
5526 | new_actions->ofpacts_len, | |
5527 | old_actions->ofpacts, | |
5528 | old_actions->ofpacts_len); | |
6787a49f | 5529 | |
5bacd5cd | 5530 | if (event != NXFME_MODIFIED || changed_actions |
81dee635 | 5531 | || changed_cookie) { |
5bacd5cd | 5532 | ofmonitor_report(ofproto->connmgr, new_rule, event, 0, |
6787a49f JR |
5533 | req ? req->ofconn : NULL, |
5534 | req ? req->request->xid : 0, | |
81dee635 | 5535 | changed_actions ? old_actions : NULL); |
6787a49f JR |
5536 | } |
5537 | } else { | |
5538 | /* XXX: This is slight duplication with delete_flows_finish__() */ | |
6787a49f JR |
5539 | ofmonitor_report(ofproto->connmgr, old_rule, NXFME_DELETED, |
5540 | OFPRR_EVICTION, | |
39c94593 | 5541 | req ? req->ofconn : NULL, |
6787a49f | 5542 | req ? req->request->xid : 0, NULL); |
39c94593 | 5543 | } |
dd27be82 | 5544 | } |
9ed18e46 BP |
5545 | } |
5546 | ||
2c7ee524 | 5547 | /* ofm->temp_rule is consumed only in the successful case. */ |
9387b970 | 5548 | static enum ofperr |
8be00367 | 5549 | modify_flows_start__(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
dd27be82 JR |
5550 | OVS_REQUIRES(ofproto_mutex) |
5551 | { | |
8be00367 JR |
5552 | struct rule_collection *old_rules = &ofm->old_rules; |
5553 | struct rule_collection *new_rules = &ofm->new_rules; | |
dd27be82 JR |
5554 | enum ofperr error; |
5555 | ||
fe59694b | 5556 | if (rule_collection_n(old_rules) > 0) { |
39c94593 | 5557 | /* Create a new 'modified' rule for each old rule. */ |
5bacd5cd JR |
5558 | struct rule *old_rule, *new_rule; |
5559 | const struct rule_actions *actions = rule_get_actions(ofm->temp_rule); | |
39c94593 | 5560 | |
5bacd5cd JR |
5561 | /* Must check actions while holding ofproto_mutex to avoid a race. */ |
5562 | error = ofproto_check_ofpacts(ofproto, actions->ofpacts, | |
5563 | actions->ofpacts_len); | |
5564 | if (error) { | |
5565 | return error; | |
5566 | } | |
5567 | ||
5568 | /* Use the temp rule as the first new rule, and as the template for | |
5569 | * the rest. */ | |
5570 | struct rule *temp = ofm->temp_rule; | |
5571 | ofm->temp_rule = NULL; /* We consume the template. */ | |
5572 | ||
5573 | bool first = true; | |
5574 | RULE_COLLECTION_FOR_EACH (old_rule, old_rules) { | |
5575 | if (first) { | |
5576 | /* The template rule's match is possibly a loose one, so it | |
5577 | * must be replaced with the old rule's match so that the new | |
5578 | * rule actually replaces the old one. */ | |
5579 | cls_rule_destroy(CONST_CAST(struct cls_rule *, &temp->cr)); | |
5580 | cls_rule_clone(CONST_CAST(struct cls_rule *, &temp->cr), | |
5581 | &old_rule->cr); | |
5c7c16d8 YHW |
5582 | if (temp->match_tlv_bitmap != old_rule->match_tlv_bitmap) { |
5583 | mf_vl_mff_unref(&temp->ofproto->vl_mff_map, | |
5584 | temp->match_tlv_bitmap); | |
5585 | temp->match_tlv_bitmap = old_rule->match_tlv_bitmap; | |
5586 | mf_vl_mff_ref(&temp->ofproto->vl_mff_map, | |
5587 | temp->match_tlv_bitmap); | |
5588 | } | |
5bacd5cd JR |
5589 | *CONST_CAST(uint8_t *, &temp->table_id) = old_rule->table_id; |
5590 | rule_collection_add(new_rules, temp); | |
5591 | first = false; | |
39c94593 | 5592 | } else { |
5bacd5cd JR |
5593 | struct cls_rule cr; |
5594 | cls_rule_clone(&cr, &old_rule->cr); | |
5595 | error = ofproto_rule_create(ofproto, &cr, old_rule->table_id, | |
5596 | temp->flow_cookie, | |
5597 | temp->idle_timeout, | |
5598 | temp->hard_timeout, temp->flags, | |
5599 | temp->importance, | |
5600 | temp->actions->ofpacts, | |
5601 | temp->actions->ofpacts_len, | |
5c7c16d8 YHW |
5602 | old_rule->match_tlv_bitmap, |
5603 | temp->ofpacts_tlv_bitmap, | |
5bacd5cd JR |
5604 | &new_rule); |
5605 | if (!error) { | |
5606 | rule_collection_add(new_rules, new_rule); | |
5607 | } else { | |
2c7ee524 JR |
5608 | /* Return the template rule in place in the error case. */ |
5609 | ofm->temp_rule = temp; | |
5610 | rule_collection_rules(new_rules)[0] = NULL; | |
5611 | ||
5bacd5cd JR |
5612 | rule_collection_unref(new_rules); |
5613 | rule_collection_destroy(new_rules); | |
5614 | return error; | |
5615 | } | |
39c94593 JR |
5616 | } |
5617 | } | |
fe59694b JR |
5618 | ovs_assert(rule_collection_n(new_rules) |
5619 | == rule_collection_n(old_rules)); | |
39c94593 | 5620 | |
fe59694b | 5621 | RULE_COLLECTIONS_FOR_EACH (old_rule, new_rule, old_rules, new_rules) { |
5bacd5cd | 5622 | replace_rule_start(ofproto, ofm, old_rule, new_rule); |
39c94593 | 5623 | } |
81dee635 | 5624 | } else if (ofm->modify_may_add_flow) { |
5bacd5cd | 5625 | /* No match, add a new flow, consumes 'temp'. */ |
8be00367 | 5626 | error = add_flow_start(ofproto, ofm); |
dd27be82 | 5627 | } else { |
2c7ee524 JR |
5628 | /* No flow to modify and may not add a flow. */ |
5629 | ofproto_rule_unref(ofm->temp_rule); | |
5630 | ofm->temp_rule = NULL; /* We consume the template. */ | |
d99f64d7 | 5631 | error = 0; |
dd27be82 | 5632 | } |
39c94593 | 5633 | |
dd27be82 JR |
5634 | return error; |
5635 | } | |
5636 | ||
5bacd5cd JR |
5637 | static enum ofperr |
5638 | modify_flows_init_loose(struct ofproto *ofproto, | |
5639 | struct ofproto_flow_mod *ofm, | |
5640 | const struct ofputil_flow_mod *fm) | |
5641 | OVS_EXCLUDED(ofproto_mutex) | |
5642 | { | |
5643 | rule_criteria_init(&ofm->criteria, fm->table_id, &fm->match, 0, | |
5644 | OVS_VERSION_MAX, fm->cookie, fm->cookie_mask, OFPP_ANY, | |
5645 | OFPG_ANY); | |
5646 | rule_criteria_require_rw(&ofm->criteria, | |
5647 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
5648 | /* Must create a new flow in advance for the case that no matches are | |
5649 | * found. Also used for template for multiple modified flows. */ | |
5650 | add_flow_init(ofproto, ofm, fm); | |
5651 | ||
5652 | return 0; | |
5653 | } | |
5654 | ||
90bf1e07 | 5655 | /* Implements OFPFC_MODIFY. Returns 0 on success or an OpenFlow error code on |
c184807c | 5656 | * failure. */ |
90bf1e07 | 5657 | static enum ofperr |
8be00367 | 5658 | modify_flows_start_loose(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
15aaf599 | 5659 | OVS_REQUIRES(ofproto_mutex) |
9ed18e46 | 5660 | { |
8be00367 | 5661 | struct rule_collection *old_rules = &ofm->old_rules; |
d51c8b71 | 5662 | enum ofperr error; |
9ed18e46 | 5663 | |
5bacd5cd | 5664 | error = collect_rules_loose(ofproto, &ofm->criteria, old_rules); |
a9b22b7f | 5665 | |
a8e547c1 | 5666 | if (!error) { |
8be00367 | 5667 | error = modify_flows_start__(ofproto, ofm); |
d99f64d7 JR |
5668 | } |
5669 | ||
5670 | if (error) { | |
39c94593 | 5671 | rule_collection_destroy(old_rules); |
d99f64d7 | 5672 | } |
5bacd5cd | 5673 | |
d99f64d7 JR |
5674 | return error; |
5675 | } | |
5676 | ||
1f42be1c | 5677 | static void |
8be00367 | 5678 | modify_flows_revert(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
1f42be1c JR |
5679 | OVS_REQUIRES(ofproto_mutex) |
5680 | { | |
8be00367 JR |
5681 | struct rule_collection *old_rules = &ofm->old_rules; |
5682 | struct rule_collection *new_rules = &ofm->new_rules; | |
5683 | ||
39c94593 | 5684 | /* Old rules were not changed yet, only need to revert new rules. */ |
5bacd5cd | 5685 | if (rule_collection_n(old_rules) > 0) { |
fe59694b JR |
5686 | struct rule *old_rule, *new_rule; |
5687 | RULE_COLLECTIONS_FOR_EACH (old_rule, new_rule, old_rules, new_rules) { | |
5688 | replace_rule_revert(ofproto, old_rule, new_rule); | |
39c94593 JR |
5689 | } |
5690 | rule_collection_destroy(new_rules); | |
5691 | rule_collection_destroy(old_rules); | |
1f42be1c | 5692 | } |
1f42be1c JR |
5693 | } |
5694 | ||
d99f64d7 | 5695 | static void |
8be00367 | 5696 | modify_flows_finish(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
0a0d9385 | 5697 | const struct openflow_mod_requester *req) |
d99f64d7 JR |
5698 | OVS_REQUIRES(ofproto_mutex) |
5699 | { | |
8be00367 JR |
5700 | struct rule_collection *old_rules = &ofm->old_rules; |
5701 | struct rule_collection *new_rules = &ofm->new_rules; | |
5702 | ||
fe59694b JR |
5703 | if (rule_collection_n(old_rules) == 0 |
5704 | && rule_collection_n(new_rules) == 1) { | |
8be00367 | 5705 | add_flow_finish(ofproto, ofm, req); |
fe59694b | 5706 | } else if (rule_collection_n(old_rules) > 0) { |
39c94593 JR |
5707 | struct ovs_list dead_cookies = OVS_LIST_INITIALIZER(&dead_cookies); |
5708 | ||
fe59694b JR |
5709 | ovs_assert(rule_collection_n(new_rules) |
5710 | == rule_collection_n(old_rules)); | |
39c94593 | 5711 | |
fe59694b JR |
5712 | struct rule *old_rule, *new_rule; |
5713 | RULE_COLLECTIONS_FOR_EACH (old_rule, new_rule, old_rules, new_rules) { | |
81dee635 | 5714 | replace_rule_finish(ofproto, ofm, req, old_rule, new_rule, |
fe59694b | 5715 | &dead_cookies); |
39c94593 JR |
5716 | } |
5717 | learned_cookies_flush(ofproto, &dead_cookies); | |
cc099268 | 5718 | remove_rules_postponed(old_rules); |
d99f64d7 | 5719 | } |
d99f64d7 JR |
5720 | } |
5721 | ||
5bacd5cd JR |
5722 | static enum ofperr |
5723 | modify_flow_init_strict(struct ofproto *ofproto OVS_UNUSED, | |
5724 | struct ofproto_flow_mod *ofm, | |
5725 | const struct ofputil_flow_mod *fm) | |
5726 | OVS_EXCLUDED(ofproto_mutex) | |
5727 | { | |
5728 | rule_criteria_init(&ofm->criteria, fm->table_id, &fm->match, fm->priority, | |
5729 | OVS_VERSION_MAX, fm->cookie, fm->cookie_mask, OFPP_ANY, | |
5730 | OFPG_ANY); | |
5731 | rule_criteria_require_rw(&ofm->criteria, | |
5732 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
5733 | /* Must create a new flow in advance for the case that no matches are | |
5734 | * found. Also used for template for multiple modified flows. */ | |
5735 | add_flow_init(ofproto, ofm, fm); | |
5736 | ||
5737 | return 0; | |
5738 | } | |
5739 | ||
79eee1eb | 5740 | /* Implements OFPFC_MODIFY_STRICT. Returns 0 on success or an OpenFlow error |
baae3d02 | 5741 | * code on failure. */ |
90bf1e07 | 5742 | static enum ofperr |
8be00367 | 5743 | modify_flow_start_strict(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
15aaf599 | 5744 | OVS_REQUIRES(ofproto_mutex) |
79eee1eb | 5745 | { |
8be00367 | 5746 | struct rule_collection *old_rules = &ofm->old_rules; |
d51c8b71 | 5747 | enum ofperr error; |
6c1491fb | 5748 | |
5bacd5cd | 5749 | error = collect_rules_strict(ofproto, &ofm->criteria, old_rules); |
a9b22b7f | 5750 | |
a8e547c1 | 5751 | if (!error) { |
dd27be82 | 5752 | /* collect_rules_strict() can return max 1 rule. */ |
8be00367 | 5753 | error = modify_flows_start__(ofproto, ofm); |
d99f64d7 JR |
5754 | } |
5755 | ||
d99f64d7 JR |
5756 | return error; |
5757 | } | |
9ed18e46 BP |
5758 | \f |
5759 | /* OFPFC_DELETE implementation. */ | |
79eee1eb | 5760 | |
254750ce | 5761 | static void |
44e0c35d | 5762 | delete_flows_start__(struct ofproto *ofproto, ovs_version_t version, |
39c94593 JR |
5763 | const struct rule_collection *rules) |
5764 | OVS_REQUIRES(ofproto_mutex) | |
5765 | { | |
fe59694b JR |
5766 | struct rule *rule; |
5767 | ||
5768 | RULE_COLLECTION_FOR_EACH (rule, rules) { | |
d79e3d70 JR |
5769 | struct oftable *table = &ofproto->tables[rule->table_id]; |
5770 | ||
5771 | table->n_flows--; | |
8be00367 | 5772 | cls_rule_make_invisible_in_version(&rule->cr, version); |
9bab38ff JR |
5773 | |
5774 | /* Remove rule from ofproto data structures. */ | |
5775 | ofproto_rule_remove__(ofproto, rule); | |
39c94593 JR |
5776 | } |
5777 | } | |
5778 | ||
25070e04 JR |
5779 | static void |
5780 | delete_flows_revert__(struct ofproto *ofproto, | |
5781 | const struct rule_collection *rules) | |
5782 | OVS_REQUIRES(ofproto_mutex) | |
5783 | { | |
5784 | struct rule *rule; | |
5785 | ||
5786 | RULE_COLLECTION_FOR_EACH (rule, rules) { | |
5787 | struct oftable *table = &ofproto->tables[rule->table_id]; | |
5788 | ||
5789 | /* Add rule back to ofproto data structures. */ | |
5790 | ofproto_rule_insert__(ofproto, rule); | |
5791 | ||
5792 | /* Restore table's rule count. */ | |
5793 | table->n_flows++; | |
5794 | ||
5795 | /* Restore the original visibility of the rule. */ | |
5796 | cls_rule_restore_visibility(&rule->cr); | |
5797 | } | |
5798 | } | |
5799 | ||
39c94593 JR |
5800 | static void |
5801 | delete_flows_finish__(struct ofproto *ofproto, | |
5802 | struct rule_collection *rules, | |
5803 | enum ofp_flow_removed_reason reason, | |
0a0d9385 | 5804 | const struct openflow_mod_requester *req) |
15aaf599 | 5805 | OVS_REQUIRES(ofproto_mutex) |
064af421 | 5806 | { |
fe59694b | 5807 | if (rule_collection_n(rules)) { |
55951e15 | 5808 | struct ovs_list dead_cookies = OVS_LIST_INITIALIZER(&dead_cookies); |
fe59694b | 5809 | struct rule *rule; |
79eee1eb | 5810 | |
fe59694b | 5811 | RULE_COLLECTION_FOR_EACH (rule, rules) { |
f695ebfa JR |
5812 | /* This value will be used to send the flow removed message right |
5813 | * before the rule is actually destroyed. */ | |
5814 | rule->removed_reason = reason; | |
5815 | ||
9ca4a86f | 5816 | ofmonitor_report(ofproto->connmgr, rule, NXFME_DELETED, reason, |
c84d8691 JR |
5817 | req ? req->ofconn : NULL, |
5818 | req ? req->request->xid : 0, NULL); | |
6c6eedc5 SJ |
5819 | |
5820 | /* Send Vacancy Event for OF1.4+. */ | |
5821 | send_table_status(ofproto, rule->table_id); | |
5822 | ||
802f84ff JR |
5823 | learned_cookies_dec(ofproto, rule_get_actions(rule), |
5824 | &dead_cookies); | |
9ca4a86f | 5825 | } |
cc099268 | 5826 | remove_rules_postponed(rules); |
39c94593 | 5827 | |
35f48b8b | 5828 | learned_cookies_flush(ofproto, &dead_cookies); |
39c94593 JR |
5829 | } |
5830 | } | |
5831 | ||
5832 | /* Deletes the rules listed in 'rules'. | |
5833 | * The deleted rules will become invisible to the lookups in the next version. | |
5834 | * Destroys 'rules'. */ | |
5835 | static void | |
5836 | delete_flows__(struct rule_collection *rules, | |
5837 | enum ofp_flow_removed_reason reason, | |
0a0d9385 | 5838 | const struct openflow_mod_requester *req) |
39c94593 JR |
5839 | OVS_REQUIRES(ofproto_mutex) |
5840 | { | |
fe59694b JR |
5841 | if (rule_collection_n(rules)) { |
5842 | struct ofproto *ofproto = rule_collection_rules(rules)[0]->ofproto; | |
39c94593 | 5843 | |
8be00367 | 5844 | delete_flows_start__(ofproto, ofproto->tables_version + 1, rules); |
39c94593 JR |
5845 | ofproto_bump_tables_version(ofproto); |
5846 | delete_flows_finish__(ofproto, rules, reason, req); | |
9ca4a86f BP |
5847 | ofmonitor_flush(ofproto->connmgr); |
5848 | } | |
79eee1eb | 5849 | } |
79eee1eb | 5850 | |
5bacd5cd JR |
5851 | static enum ofperr |
5852 | delete_flows_init_loose(struct ofproto *ofproto OVS_UNUSED, | |
5853 | struct ofproto_flow_mod *ofm, | |
5854 | const struct ofputil_flow_mod *fm) | |
5855 | OVS_EXCLUDED(ofproto_mutex) | |
5856 | { | |
5857 | rule_criteria_init(&ofm->criteria, fm->table_id, &fm->match, 0, | |
5858 | OVS_VERSION_MAX, fm->cookie, fm->cookie_mask, | |
5859 | fm->out_port, fm->out_group); | |
5860 | rule_criteria_require_rw(&ofm->criteria, | |
5861 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
5862 | return 0; | |
5863 | } | |
5864 | ||
79eee1eb | 5865 | /* Implements OFPFC_DELETE. */ |
90bf1e07 | 5866 | static enum ofperr |
8be00367 | 5867 | delete_flows_start_loose(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
15aaf599 | 5868 | OVS_REQUIRES(ofproto_mutex) |
79eee1eb | 5869 | { |
8be00367 | 5870 | struct rule_collection *rules = &ofm->old_rules; |
90bf1e07 | 5871 | enum ofperr error; |
064af421 | 5872 | |
5bacd5cd | 5873 | error = collect_rules_loose(ofproto, &ofm->criteria, rules); |
a9b22b7f | 5874 | |
802f84ff | 5875 | if (!error) { |
8be00367 | 5876 | delete_flows_start__(ofproto, ofm->version, rules); |
a8e547c1 | 5877 | } |
a8e547c1 BP |
5878 | |
5879 | return error; | |
064af421 BP |
5880 | } |
5881 | ||
ce59413f | 5882 | static void |
8be00367 | 5883 | delete_flows_revert(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
ce59413f JR |
5884 | OVS_REQUIRES(ofproto_mutex) |
5885 | { | |
25070e04 | 5886 | delete_flows_revert__(ofproto, &ofm->old_rules); |
ce59413f JR |
5887 | } |
5888 | ||
1f42be1c | 5889 | static void |
2c7ee524 | 5890 | delete_flows_finish(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
0a0d9385 | 5891 | const struct openflow_mod_requester *req) |
15aaf599 | 5892 | OVS_REQUIRES(ofproto_mutex) |
79eee1eb | 5893 | { |
5aacc3e2 | 5894 | delete_flows_finish__(ofproto, &ofm->old_rules, OFPRR_DELETE, req); |
ce59413f JR |
5895 | } |
5896 | ||
5bacd5cd JR |
5897 | static enum ofperr |
5898 | delete_flows_init_strict(struct ofproto *ofproto OVS_UNUSED, | |
5899 | struct ofproto_flow_mod *ofm, | |
5900 | const struct ofputil_flow_mod *fm) | |
5901 | OVS_EXCLUDED(ofproto_mutex) | |
5902 | { | |
5903 | rule_criteria_init(&ofm->criteria, fm->table_id, &fm->match, fm->priority, | |
5904 | OVS_VERSION_MAX, fm->cookie, fm->cookie_mask, | |
5905 | fm->out_port, fm->out_group); | |
5906 | rule_criteria_require_rw(&ofm->criteria, | |
5907 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
5908 | return 0; | |
5909 | } | |
5910 | ||
ce59413f JR |
5911 | /* Implements OFPFC_DELETE_STRICT. */ |
5912 | static enum ofperr | |
2c7ee524 | 5913 | delete_flow_start_strict(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
ce59413f JR |
5914 | OVS_REQUIRES(ofproto_mutex) |
5915 | { | |
8be00367 | 5916 | struct rule_collection *rules = &ofm->old_rules; |
ce59413f JR |
5917 | enum ofperr error; |
5918 | ||
5bacd5cd | 5919 | error = collect_rules_strict(ofproto, &ofm->criteria, rules); |
a9b22b7f | 5920 | |
802f84ff | 5921 | if (!error) { |
8be00367 | 5922 | delete_flows_start__(ofproto, ofm->version, rules); |
ce59413f JR |
5923 | } |
5924 | ||
5925 | return error; | |
5926 | } | |
5927 | ||
f695ebfa | 5928 | /* This may only be called by rule_destroy_cb()! */ |
abe529af | 5929 | static void |
f695ebfa JR |
5930 | ofproto_rule_send_removed(struct rule *rule) |
5931 | OVS_EXCLUDED(ofproto_mutex) | |
abe529af BP |
5932 | { |
5933 | struct ofputil_flow_removed fr; | |
dc437090 | 5934 | long long int used; |
abe529af | 5935 | |
5cb7a798 | 5936 | minimatch_expand(&rule->cr.match, &fr.match); |
81a76618 | 5937 | fr.priority = rule->cr.priority; |
f695ebfa | 5938 | |
25010c68 JR |
5939 | /* Synchronize with connmgr_destroy() calls to prevent connmgr disappearing |
5940 | * while we use it. */ | |
f695ebfa | 5941 | ovs_mutex_lock(&ofproto_mutex); |
25010c68 JR |
5942 | struct connmgr *connmgr = rule->ofproto->connmgr; |
5943 | if (!connmgr) { | |
5944 | ovs_mutex_unlock(&ofproto_mutex); | |
5945 | return; | |
5946 | } | |
5947 | ||
abe529af | 5948 | fr.cookie = rule->flow_cookie; |
f695ebfa | 5949 | fr.reason = rule->removed_reason; |
95216219 | 5950 | fr.table_id = rule->table_id; |
65e0be10 BP |
5951 | calc_duration(rule->created, time_msec(), |
5952 | &fr.duration_sec, &fr.duration_nsec); | |
d10976b7 | 5953 | ovs_mutex_lock(&rule->mutex); |
abe529af | 5954 | fr.idle_timeout = rule->idle_timeout; |
fa2bad0f | 5955 | fr.hard_timeout = rule->hard_timeout; |
d10976b7 | 5956 | ovs_mutex_unlock(&rule->mutex); |
abe529af | 5957 | rule->ofproto->ofproto_class->rule_get_stats(rule, &fr.packet_count, |
dc437090 | 5958 | &fr.byte_count, &used); |
25010c68 | 5959 | connmgr_send_flow_removed(connmgr, &fr); |
f695ebfa | 5960 | ovs_mutex_unlock(&ofproto_mutex); |
abe529af BP |
5961 | } |
5962 | ||
5963 | /* Sends an OpenFlow "flow removed" message with the given 'reason' (either | |
5964 | * OFPRR_HARD_TIMEOUT or OFPRR_IDLE_TIMEOUT), and then removes 'rule' from its | |
5965 | * ofproto. | |
5966 | * | |
5967 | * ofproto implementation ->run() functions should use this function to expire | |
5968 | * OpenFlow flows. */ | |
5969 | void | |
5970 | ofproto_rule_expire(struct rule *rule, uint8_t reason) | |
15aaf599 | 5971 | OVS_REQUIRES(ofproto_mutex) |
abe529af | 5972 | { |
802f84ff JR |
5973 | struct rule_collection rules; |
5974 | ||
fe59694b JR |
5975 | rule_collection_init(&rules); |
5976 | rule_collection_add(&rules, rule); | |
802f84ff | 5977 | delete_flows__(&rules, reason, NULL); |
79eee1eb | 5978 | } |
994c9973 BP |
5979 | |
5980 | /* Reduces '*timeout' to no more than 'max'. A value of zero in either case | |
5981 | * means "infinite". */ | |
5982 | static void | |
5983 | reduce_timeout(uint16_t max, uint16_t *timeout) | |
5984 | { | |
5985 | if (max && (!*timeout || *timeout > max)) { | |
5986 | *timeout = max; | |
5987 | } | |
5988 | } | |
5989 | ||
5990 | /* If 'idle_timeout' is nonzero, and 'rule' has no idle timeout or an idle | |
5991 | * timeout greater than 'idle_timeout', lowers 'rule''s idle timeout to | |
5992 | * 'idle_timeout' seconds. Similarly for 'hard_timeout'. | |
5993 | * | |
5994 | * Suitable for implementing OFPACT_FIN_TIMEOUT. */ | |
1f4a8933 JR |
5995 | void |
5996 | ofproto_rule_reduce_timeouts__(struct rule *rule, | |
5997 | uint16_t idle_timeout, uint16_t hard_timeout) | |
5998 | OVS_REQUIRES(ofproto_mutex) | |
5999 | OVS_EXCLUDED(rule->mutex) | |
6000 | { | |
6001 | if (!idle_timeout && !hard_timeout) { | |
6002 | return; | |
6003 | } | |
6004 | ||
6005 | if (ovs_list_is_empty(&rule->expirable)) { | |
6006 | ovs_list_insert(&rule->ofproto->expirable, &rule->expirable); | |
6007 | } | |
6008 | ||
6009 | ovs_mutex_lock(&rule->mutex); | |
6010 | reduce_timeout(idle_timeout, &rule->idle_timeout); | |
6011 | reduce_timeout(hard_timeout, &rule->hard_timeout); | |
6012 | ovs_mutex_unlock(&rule->mutex); | |
6013 | } | |
6014 | ||
994c9973 BP |
6015 | void |
6016 | ofproto_rule_reduce_timeouts(struct rule *rule, | |
6017 | uint16_t idle_timeout, uint16_t hard_timeout) | |
d10976b7 | 6018 | OVS_EXCLUDED(ofproto_mutex, rule->mutex) |
994c9973 BP |
6019 | { |
6020 | if (!idle_timeout && !hard_timeout) { | |
6021 | return; | |
6022 | } | |
6023 | ||
abe7b10f | 6024 | ovs_mutex_lock(&ofproto_mutex); |
417e7e66 BW |
6025 | if (ovs_list_is_empty(&rule->expirable)) { |
6026 | ovs_list_insert(&rule->ofproto->expirable, &rule->expirable); | |
994c9973 | 6027 | } |
abe7b10f | 6028 | ovs_mutex_unlock(&ofproto_mutex); |
994c9973 | 6029 | |
d10976b7 | 6030 | ovs_mutex_lock(&rule->mutex); |
994c9973 BP |
6031 | reduce_timeout(idle_timeout, &rule->idle_timeout); |
6032 | reduce_timeout(hard_timeout, &rule->hard_timeout); | |
d10976b7 | 6033 | ovs_mutex_unlock(&rule->mutex); |
994c9973 | 6034 | } |
79eee1eb | 6035 | \f |
90bf1e07 | 6036 | static enum ofperr |
2e4f5fcf | 6037 | handle_flow_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
15aaf599 | 6038 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 6039 | { |
a5b8d268 | 6040 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
7338102b | 6041 | struct ofputil_flow_mod fm; |
f25d0cf3 BP |
6042 | uint64_t ofpacts_stub[1024 / 8]; |
6043 | struct ofpbuf ofpacts; | |
90bf1e07 | 6044 | enum ofperr error; |
064af421 | 6045 | |
76589937 | 6046 | error = reject_slave_controller(ofconn); |
9deba63b | 6047 | if (error) { |
b0d38b2f | 6048 | return error; |
9deba63b | 6049 | } |
3052b0c5 | 6050 | |
f25d0cf3 | 6051 | ofpbuf_use_stub(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); |
7338102b | 6052 | error = ofputil_decode_flow_mod(&fm, oh, ofconn_get_protocol(ofconn), |
04f48a68 YHW |
6053 | ofproto_get_tun_tab(ofproto), |
6054 | &ofproto->vl_mff_map, &ofpacts, | |
7e9f8266 BP |
6055 | u16_to_ofp(ofproto->max_ports), |
6056 | ofproto->n_tables); | |
548de4dd | 6057 | if (!error) { |
0a0d9385 | 6058 | struct openflow_mod_requester req = { ofconn, oh }; |
7338102b | 6059 | error = handle_flow_mod__(ofproto, &fm, &req); |
6a6b7060 | 6060 | minimatch_destroy(&fm.match); |
49bdc010 | 6061 | } |
2e310801 | 6062 | |
f25d0cf3 | 6063 | ofpbuf_uninit(&ofpacts); |
f25d0cf3 | 6064 | return error; |
75a75043 BP |
6065 | } |
6066 | ||
90bf1e07 | 6067 | static enum ofperr |
7338102b | 6068 | handle_flow_mod__(struct ofproto *ofproto, const struct ofputil_flow_mod *fm, |
0a0d9385 | 6069 | const struct openflow_mod_requester *req) |
15aaf599 | 6070 | OVS_EXCLUDED(ofproto_mutex) |
75a75043 | 6071 | { |
7338102b | 6072 | struct ofproto_flow_mod ofm; |
35412852 | 6073 | enum ofperr error; |
75a75043 | 6074 | |
2c7ee524 | 6075 | error = ofproto_flow_mod_init(ofproto, &ofm, fm, NULL); |
5bacd5cd JR |
6076 | if (error) { |
6077 | return error; | |
6078 | } | |
7338102b | 6079 | |
15aaf599 | 6080 | ovs_mutex_lock(&ofproto_mutex); |
7338102b JR |
6081 | ofm.version = ofproto->tables_version + 1; |
6082 | error = ofproto_flow_mod_start(ofproto, &ofm); | |
1f42be1c | 6083 | if (!error) { |
39c94593 | 6084 | ofproto_bump_tables_version(ofproto); |
7338102b | 6085 | ofproto_flow_mod_finish(ofproto, &ofm, req); |
2c7ee524 | 6086 | ofmonitor_flush(ofproto->connmgr); |
3052b0c5 | 6087 | } |
15aaf599 | 6088 | ovs_mutex_unlock(&ofproto_mutex); |
35412852 | 6089 | |
35412852 | 6090 | return error; |
3052b0c5 BP |
6091 | } |
6092 | ||
90bf1e07 | 6093 | static enum ofperr |
d1e2cf21 | 6094 | handle_role_request(struct ofconn *ofconn, const struct ofp_header *oh) |
9deba63b | 6095 | { |
f4f1ea7e BP |
6096 | struct ofputil_role_request request; |
6097 | struct ofputil_role_request reply; | |
9deba63b | 6098 | struct ofpbuf *buf; |
6ea4776b JR |
6099 | enum ofperr error; |
6100 | ||
f4f1ea7e | 6101 | error = ofputil_decode_role_message(oh, &request); |
6ea4776b JR |
6102 | if (error) { |
6103 | return error; | |
6104 | } | |
9deba63b | 6105 | |
f4f1ea7e | 6106 | if (request.role != OFPCR12_ROLE_NOCHANGE) { |
d26eda9f BP |
6107 | if (request.role != OFPCR12_ROLE_EQUAL |
6108 | && request.have_generation_id | |
f4f1ea7e BP |
6109 | && !ofconn_set_master_election_id(ofconn, request.generation_id)) { |
6110 | return OFPERR_OFPRRFC_STALE; | |
6ea4776b | 6111 | } |
6ea4776b | 6112 | |
f4f1ea7e BP |
6113 | ofconn_set_role(ofconn, request.role); |
6114 | } | |
9deba63b | 6115 | |
f4f1ea7e | 6116 | reply.role = ofconn_get_role(ofconn); |
147cc9d3 BP |
6117 | reply.have_generation_id = ofconn_get_master_election_id( |
6118 | ofconn, &reply.generation_id); | |
f4f1ea7e | 6119 | buf = ofputil_encode_role_reply(oh, &reply); |
b0421aa2 | 6120 | ofconn_send_reply(ofconn, buf); |
9deba63b BP |
6121 | |
6122 | return 0; | |
6123 | } | |
6124 | ||
90bf1e07 | 6125 | static enum ofperr |
6c1491fb BP |
6126 | handle_nxt_flow_mod_table_id(struct ofconn *ofconn, |
6127 | const struct ofp_header *oh) | |
6128 | { | |
225c33ba BP |
6129 | bool enable = ofputil_decode_nx_flow_mod_table_id(oh); |
6130 | enum ofputil_protocol cur = ofconn_get_protocol(ofconn); | |
6131 | ofconn_set_protocol(ofconn, ofputil_protocol_set_tid(cur, enable)); | |
6c1491fb | 6132 | |
6c1491fb BP |
6133 | return 0; |
6134 | } | |
6135 | ||
90bf1e07 | 6136 | static enum ofperr |
d1e2cf21 | 6137 | handle_nxt_set_flow_format(struct ofconn *ofconn, const struct ofp_header *oh) |
09246b99 | 6138 | { |
225c33ba | 6139 | enum ofputil_protocol next_base = ofputil_decode_nx_set_flow_format(oh); |
27527aa0 | 6140 | if (!next_base) { |
90bf1e07 | 6141 | return OFPERR_OFPBRC_EPERM; |
09246b99 | 6142 | } |
7ee20df1 | 6143 | |
225c33ba BP |
6144 | enum ofputil_protocol cur = ofconn_get_protocol(ofconn); |
6145 | ofconn_set_protocol(ofconn, ofputil_protocol_set_base(cur, next_base)); | |
b20f4073 | 6146 | |
7ee20df1 | 6147 | return 0; |
09246b99 BP |
6148 | } |
6149 | ||
90bf1e07 | 6150 | static enum ofperr |
54834960 EJ |
6151 | handle_nxt_set_packet_in_format(struct ofconn *ofconn, |
6152 | const struct ofp_header *oh) | |
6153 | { | |
d8790c08 BP |
6154 | enum ofputil_packet_in_format format; |
6155 | enum ofperr error = ofputil_decode_set_packet_in_format(oh, &format); | |
6156 | if (!error) { | |
6157 | ofconn_set_packet_in_format(ofconn, format); | |
54834960 | 6158 | } |
d8790c08 | 6159 | return error; |
54834960 EJ |
6160 | } |
6161 | ||
80d5aefd BP |
6162 | static enum ofperr |
6163 | handle_nxt_set_async_config(struct ofconn *ofconn, const struct ofp_header *oh) | |
6164 | { | |
5876b4db BP |
6165 | struct ofputil_async_cfg basis = ofconn_get_async_config(ofconn); |
6166 | struct ofputil_async_cfg ac; | |
d18cc1ee | 6167 | enum ofperr error; |
80d5aefd | 6168 | |
5876b4db | 6169 | error = ofputil_decode_set_async_config(oh, false, &basis, &ac); |
d18cc1ee AA |
6170 | if (error) { |
6171 | return error; | |
6172 | } | |
80d5aefd | 6173 | |
a930d4c5 | 6174 | ofconn_set_async_config(ofconn, &ac); |
4550b647 MM |
6175 | if (ofconn_get_type(ofconn) == OFCONN_SERVICE && |
6176 | !ofconn_get_miss_send_len(ofconn)) { | |
6177 | ofconn_set_miss_send_len(ofconn, OFP_DEFAULT_MISS_SEND_LEN); | |
6178 | } | |
80d5aefd BP |
6179 | |
6180 | return 0; | |
6181 | } | |
6182 | ||
c423b3b3 AC |
6183 | static enum ofperr |
6184 | handle_nxt_get_async_request(struct ofconn *ofconn, const struct ofp_header *oh) | |
6185 | { | |
a930d4c5 | 6186 | struct ofputil_async_cfg ac = ofconn_get_async_config(ofconn); |
af7bc161 | 6187 | ofconn_send_reply(ofconn, ofputil_encode_get_async_reply(oh, &ac)); |
c423b3b3 AC |
6188 | |
6189 | return 0; | |
6190 | } | |
6191 | ||
a7349929 BP |
6192 | static enum ofperr |
6193 | handle_nxt_set_controller_id(struct ofconn *ofconn, | |
6194 | const struct ofp_header *oh) | |
6195 | { | |
982697a4 | 6196 | const struct nx_controller_id *nci = ofpmsg_body(oh); |
a7349929 | 6197 | |
a7349929 BP |
6198 | if (!is_all_zeros(nci->zero, sizeof nci->zero)) { |
6199 | return OFPERR_NXBRC_MUST_BE_ZERO; | |
6200 | } | |
6201 | ||
6202 | ofconn_set_controller_id(ofconn, ntohs(nci->controller_id)); | |
6203 | return 0; | |
6204 | } | |
6205 | ||
90bf1e07 | 6206 | static enum ofperr |
d1e2cf21 | 6207 | handle_barrier_request(struct ofconn *ofconn, const struct ofp_header *oh) |
246e61ea | 6208 | { |
246e61ea JP |
6209 | struct ofpbuf *buf; |
6210 | ||
982697a4 BP |
6211 | buf = ofpraw_alloc_reply((oh->version == OFP10_VERSION |
6212 | ? OFPRAW_OFPT10_BARRIER_REPLY | |
6213 | : OFPRAW_OFPT11_BARRIER_REPLY), oh, 0); | |
b0421aa2 | 6214 | ofconn_send_reply(ofconn, buf); |
246e61ea JP |
6215 | return 0; |
6216 | } | |
6217 | ||
2b07c8b1 BP |
6218 | static void |
6219 | ofproto_compose_flow_refresh_update(const struct rule *rule, | |
6220 | enum nx_flow_monitor_flags flags, | |
140f36ba DDP |
6221 | struct ovs_list *msgs, |
6222 | const struct tun_table *tun_table) | |
15aaf599 | 6223 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 | 6224 | { |
6f00e29b | 6225 | const struct rule_actions *actions; |
2b07c8b1 BP |
6226 | struct ofputil_flow_update fu; |
6227 | ||
2b07c8b1 BP |
6228 | fu.event = (flags & (NXFMF_INITIAL | NXFMF_ADD) |
6229 | ? NXFME_ADDED : NXFME_MODIFIED); | |
6230 | fu.reason = 0; | |
d10976b7 | 6231 | ovs_mutex_lock(&rule->mutex); |
2b07c8b1 BP |
6232 | fu.idle_timeout = rule->idle_timeout; |
6233 | fu.hard_timeout = rule->hard_timeout; | |
d10976b7 | 6234 | ovs_mutex_unlock(&rule->mutex); |
2b07c8b1 BP |
6235 | fu.table_id = rule->table_id; |
6236 | fu.cookie = rule->flow_cookie; | |
140f36ba | 6237 | minimatch_expand(&rule->cr.match, &fu.match); |
6b140a4e | 6238 | fu.priority = rule->cr.priority; |
6f00e29b | 6239 | |
b20f4073 | 6240 | actions = flags & NXFMF_ACTIONS ? rule_get_actions(rule) : NULL; |
6f00e29b BP |
6241 | fu.ofpacts = actions ? actions->ofpacts : NULL; |
6242 | fu.ofpacts_len = actions ? actions->ofpacts_len : 0; | |
2b07c8b1 | 6243 | |
417e7e66 | 6244 | if (ovs_list_is_empty(msgs)) { |
2b07c8b1 BP |
6245 | ofputil_start_flow_update(msgs); |
6246 | } | |
140f36ba | 6247 | ofputil_append_flow_update(&fu, msgs, tun_table); |
2b07c8b1 BP |
6248 | } |
6249 | ||
6250 | void | |
a8e547c1 | 6251 | ofmonitor_compose_refresh_updates(struct rule_collection *rules, |
ca6ba700 | 6252 | struct ovs_list *msgs) |
15aaf599 | 6253 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 | 6254 | { |
fe59694b | 6255 | struct rule *rule; |
2b07c8b1 | 6256 | |
fe59694b | 6257 | RULE_COLLECTION_FOR_EACH (rule, rules) { |
2b07c8b1 BP |
6258 | enum nx_flow_monitor_flags flags = rule->monitor_flags; |
6259 | rule->monitor_flags = 0; | |
6260 | ||
140f36ba DDP |
6261 | ofproto_compose_flow_refresh_update(rule, flags, msgs, |
6262 | ofproto_get_tun_tab(rule->ofproto)); | |
2b07c8b1 BP |
6263 | } |
6264 | } | |
6265 | ||
6266 | static void | |
6267 | ofproto_collect_ofmonitor_refresh_rule(const struct ofmonitor *m, | |
6268 | struct rule *rule, uint64_t seqno, | |
a8e547c1 | 6269 | struct rule_collection *rules) |
15aaf599 | 6270 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
6271 | { |
6272 | enum nx_flow_monitor_flags update; | |
6273 | ||
5e8b38b0 | 6274 | if (rule_is_hidden(rule)) { |
2b07c8b1 BP |
6275 | return; |
6276 | } | |
6277 | ||
b20f4073 | 6278 | if (!ofproto_rule_has_out_port(rule, m->out_port)) { |
2b07c8b1 BP |
6279 | return; |
6280 | } | |
6281 | ||
6282 | if (seqno) { | |
6283 | if (rule->add_seqno > seqno) { | |
6284 | update = NXFMF_ADD | NXFMF_MODIFY; | |
6285 | } else if (rule->modify_seqno > seqno) { | |
6286 | update = NXFMF_MODIFY; | |
6287 | } else { | |
6288 | return; | |
6289 | } | |
6290 | ||
6291 | if (!(m->flags & update)) { | |
6292 | return; | |
6293 | } | |
6294 | } else { | |
6295 | update = NXFMF_INITIAL; | |
6296 | } | |
6297 | ||
6298 | if (!rule->monitor_flags) { | |
a8e547c1 | 6299 | rule_collection_add(rules, rule); |
2b07c8b1 BP |
6300 | } |
6301 | rule->monitor_flags |= update | (m->flags & NXFMF_ACTIONS); | |
6302 | } | |
6303 | ||
6304 | static void | |
6305 | ofproto_collect_ofmonitor_refresh_rules(const struct ofmonitor *m, | |
6306 | uint64_t seqno, | |
a8e547c1 | 6307 | struct rule_collection *rules) |
15aaf599 | 6308 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
6309 | { |
6310 | const struct ofproto *ofproto = ofconn_get_ofproto(m->ofconn); | |
2b07c8b1 | 6311 | const struct oftable *table; |
81a76618 | 6312 | struct cls_rule target; |
2b07c8b1 | 6313 | |
bd53aa17 | 6314 | cls_rule_init_from_minimatch(&target, &m->match, 0); |
2b07c8b1 | 6315 | FOR_EACH_MATCHING_TABLE (table, m->table_id, ofproto) { |
2b07c8b1 BP |
6316 | struct rule *rule; |
6317 | ||
44e0c35d | 6318 | CLS_FOR_EACH_TARGET (rule, cr, &table->cls, &target, OVS_VERSION_MAX) { |
2b07c8b1 BP |
6319 | ofproto_collect_ofmonitor_refresh_rule(m, rule, seqno, rules); |
6320 | } | |
6321 | } | |
48d28ac1 | 6322 | cls_rule_destroy(&target); |
2b07c8b1 BP |
6323 | } |
6324 | ||
6325 | static void | |
6326 | ofproto_collect_ofmonitor_initial_rules(struct ofmonitor *m, | |
a8e547c1 | 6327 | struct rule_collection *rules) |
15aaf599 | 6328 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
6329 | { |
6330 | if (m->flags & NXFMF_INITIAL) { | |
6331 | ofproto_collect_ofmonitor_refresh_rules(m, 0, rules); | |
6332 | } | |
6333 | } | |
6334 | ||
6335 | void | |
6336 | ofmonitor_collect_resume_rules(struct ofmonitor *m, | |
a8e547c1 | 6337 | uint64_t seqno, struct rule_collection *rules) |
15aaf599 | 6338 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
6339 | { |
6340 | ofproto_collect_ofmonitor_refresh_rules(m, seqno, rules); | |
6341 | } | |
6342 | ||
7b900689 SH |
6343 | static enum ofperr |
6344 | flow_monitor_delete(struct ofconn *ofconn, uint32_t id) | |
6345 | OVS_REQUIRES(ofproto_mutex) | |
6346 | { | |
6347 | struct ofmonitor *m; | |
6348 | enum ofperr error; | |
6349 | ||
6350 | m = ofmonitor_lookup(ofconn, id); | |
6351 | if (m) { | |
6352 | ofmonitor_destroy(m); | |
6353 | error = 0; | |
6354 | } else { | |
6355 | error = OFPERR_OFPMOFC_UNKNOWN_MONITOR; | |
6356 | } | |
6357 | ||
6358 | return error; | |
6359 | } | |
6360 | ||
2b07c8b1 | 6361 | static enum ofperr |
af3c51ae | 6362 | handle_flow_monitor_request(struct ofconn *ofconn, const struct ovs_list *msgs) |
15aaf599 | 6363 | OVS_EXCLUDED(ofproto_mutex) |
2b07c8b1 BP |
6364 | { |
6365 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
2b07c8b1 | 6366 | |
0a2869d5 BP |
6367 | struct ofmonitor **monitors = NULL; |
6368 | size_t allocated_monitors = 0; | |
6369 | size_t n_monitors = 0; | |
6370 | ||
15aaf599 | 6371 | ovs_mutex_lock(&ofproto_mutex); |
af3c51ae BP |
6372 | struct ofpbuf *b; |
6373 | LIST_FOR_EACH (b, list_node, msgs) { | |
6374 | for (;;) { | |
6375 | enum ofperr error; | |
2b07c8b1 | 6376 | |
af3c51ae BP |
6377 | struct ofputil_flow_monitor_request request; |
6378 | int retval = ofputil_decode_flow_monitor_request(&request, b); | |
6379 | if (retval == EOF) { | |
6380 | break; | |
6381 | } else if (retval) { | |
6382 | error = retval; | |
6383 | goto error; | |
6384 | } | |
2b07c8b1 | 6385 | |
af3c51ae BP |
6386 | if (request.table_id != OFPTT_ALL |
6387 | && request.table_id >= ofproto->n_tables) { | |
6388 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
6389 | goto error; | |
6390 | } | |
2b07c8b1 | 6391 | |
af3c51ae BP |
6392 | struct ofmonitor *m; |
6393 | error = ofmonitor_create(&request, ofconn, &m); | |
6394 | if (error) { | |
6395 | goto error; | |
6396 | } | |
6397 | ||
6398 | if (n_monitors >= allocated_monitors) { | |
6399 | monitors = x2nrealloc(monitors, &allocated_monitors, | |
6400 | sizeof *monitors); | |
6401 | } | |
6402 | monitors[n_monitors++] = m; | |
6403 | continue; | |
6404 | ||
6405 | error: | |
6406 | ofconn_send_error(ofconn, b->data, error); | |
6407 | ||
6408 | for (size_t i = 0; i < n_monitors; i++) { | |
6409 | ofmonitor_destroy(monitors[i]); | |
6410 | } | |
6411 | free(monitors); | |
6412 | ovs_mutex_unlock(&ofproto_mutex); | |
2b07c8b1 | 6413 | |
af3c51ae | 6414 | return error; |
2b07c8b1 | 6415 | } |
2b07c8b1 BP |
6416 | } |
6417 | ||
0a2869d5 | 6418 | struct rule_collection rules; |
a8e547c1 | 6419 | rule_collection_init(&rules); |
0a2869d5 | 6420 | for (size_t i = 0; i < n_monitors; i++) { |
2b07c8b1 BP |
6421 | ofproto_collect_ofmonitor_initial_rules(monitors[i], &rules); |
6422 | } | |
6423 | ||
0a2869d5 | 6424 | struct ovs_list replies; |
af3c51ae | 6425 | ofpmp_init(&replies, ofpbuf_from_list(ovs_list_back(msgs))->header); |
2b07c8b1 | 6426 | ofmonitor_compose_refresh_updates(&rules, &replies); |
15aaf599 BP |
6427 | ovs_mutex_unlock(&ofproto_mutex); |
6428 | ||
a8e547c1 BP |
6429 | rule_collection_destroy(&rules); |
6430 | ||
2b07c8b1 | 6431 | ofconn_send_replies(ofconn, &replies); |
2b07c8b1 BP |
6432 | free(monitors); |
6433 | ||
6434 | return 0; | |
2b07c8b1 BP |
6435 | } |
6436 | ||
6437 | static enum ofperr | |
6438 | handle_flow_monitor_cancel(struct ofconn *ofconn, const struct ofp_header *oh) | |
15aaf599 | 6439 | OVS_EXCLUDED(ofproto_mutex) |
2b07c8b1 | 6440 | { |
15aaf599 | 6441 | enum ofperr error; |
2b07c8b1 BP |
6442 | uint32_t id; |
6443 | ||
6444 | id = ofputil_decode_flow_monitor_cancel(oh); | |
15aaf599 BP |
6445 | |
6446 | ovs_mutex_lock(&ofproto_mutex); | |
7b900689 | 6447 | error = flow_monitor_delete(ofconn, id); |
15aaf599 | 6448 | ovs_mutex_unlock(&ofproto_mutex); |
2b07c8b1 | 6449 | |
15aaf599 | 6450 | return error; |
2b07c8b1 BP |
6451 | } |
6452 | ||
9cae45dc JR |
6453 | /* Meters implementation. |
6454 | * | |
6455 | * Meter table entry, indexed by the OpenFlow meter_id. | |
9cae45dc JR |
6456 | * 'created' is used to compute the duration for meter stats. |
6457 | * 'list rules' is needed so that we can delete the dependent rules when the | |
6458 | * meter table entry is deleted. | |
6459 | * 'provider_meter_id' is for the provider's private use. | |
6460 | */ | |
6461 | struct meter { | |
ba8cff36 | 6462 | struct hmap_node node; /* In ofproto->meters. */ |
9cae45dc | 6463 | long long int created; /* Time created. */ |
ca6ba700 | 6464 | struct ovs_list rules; /* List of "struct rule_dpif"s. */ |
ba8cff36 | 6465 | uint32_t id; /* OpenFlow meter_id. */ |
9cae45dc JR |
6466 | ofproto_meter_id provider_meter_id; |
6467 | uint16_t flags; /* Meter flags. */ | |
6468 | uint16_t n_bands; /* Number of meter bands. */ | |
6469 | struct ofputil_meter_band *bands; | |
6470 | }; | |
6471 | ||
ba8cff36 AZ |
6472 | static struct meter * |
6473 | ofproto_get_meter(const struct ofproto *ofproto, uint32_t meter_id) | |
6474 | { | |
6475 | struct meter *meter; | |
6476 | uint32_t hash = hash_int(meter_id, 0); | |
6477 | ||
6478 | HMAP_FOR_EACH_WITH_HASH (meter, node, hash, &ofproto->meters) { | |
6479 | if (meter->id == meter_id) { | |
6480 | return meter; | |
6481 | } | |
6482 | } | |
6483 | ||
6484 | return NULL; | |
6485 | } | |
6486 | ||
9e638f22 AZ |
6487 | static uint32_t * |
6488 | ofproto_upcall_meter_ptr(struct ofproto *ofproto, uint32_t meter_id) | |
6489 | { | |
6490 | switch(meter_id) { | |
6491 | case OFPM13_SLOWPATH: | |
6492 | return &ofproto->slowpath_meter_id; | |
6493 | break; | |
6494 | case OFPM13_CONTROLLER: | |
6495 | return &ofproto->controller_meter_id; | |
6496 | break; | |
6497 | case OFPM13_ALL: | |
6498 | OVS_NOT_REACHED(); | |
6499 | default: | |
6500 | return NULL; | |
6501 | } | |
6502 | } | |
6503 | ||
ba8cff36 AZ |
6504 | static void |
6505 | ofproto_add_meter(struct ofproto *ofproto, struct meter *meter) | |
6506 | { | |
9e638f22 AZ |
6507 | uint32_t *upcall_meter_ptr = ofproto_upcall_meter_ptr(ofproto, meter->id); |
6508 | ||
6509 | /* Cache datapath meter IDs of special meters. */ | |
6510 | if (upcall_meter_ptr) { | |
6511 | *upcall_meter_ptr = meter->provider_meter_id.uint32; | |
6512 | } | |
6513 | ||
ba8cff36 AZ |
6514 | hmap_insert(&ofproto->meters, &meter->node, hash_int(meter->id, 0)); |
6515 | } | |
6516 | ||
9cae45dc | 6517 | /* |
076caa2f JR |
6518 | * This is used in instruction validation at flow set-up time, to map |
6519 | * the OpenFlow meter ID to the corresponding datapath provider meter | |
6520 | * ID. If either does not exist, returns false. Otherwise updates | |
6521 | * the meter action and returns true. | |
9cae45dc | 6522 | */ |
076caa2f JR |
6523 | static bool |
6524 | ofproto_fix_meter_action(const struct ofproto *ofproto, | |
6525 | struct ofpact_meter *ma) | |
6526 | { | |
ba8cff36 AZ |
6527 | if (ma->meter_id) { |
6528 | const struct meter *meter = ofproto_get_meter(ofproto, ma->meter_id); | |
076caa2f JR |
6529 | |
6530 | if (meter && meter->provider_meter_id.uint32 != UINT32_MAX) { | |
6531 | /* Update the action with the provider's meter ID, so that we | |
6532 | * do not need any synchronization between ofproto_dpif_xlate | |
6533 | * and ofproto for meter table access. */ | |
6534 | ma->provider_meter_id = meter->provider_meter_id.uint32; | |
6535 | return true; | |
9cae45dc JR |
6536 | } |
6537 | } | |
076caa2f | 6538 | return false; |
9cae45dc JR |
6539 | } |
6540 | ||
206ddb9a JP |
6541 | /* This is used in instruction validation at flow set-up time, to map |
6542 | * the OpenFlow meter ID in a controller action to the corresponding | |
6543 | * datapath provider meter ID. If either does not exist, sets the | |
6544 | * provider meter id to a value to prevent the provider from using it | |
6545 | * and returns false. Otherwise, updates the meter action and returns | |
6546 | * true. */ | |
6547 | static bool | |
6548 | ofproto_fix_controller_action(const struct ofproto *ofproto, | |
6549 | struct ofpact_controller *ca) | |
6550 | { | |
6551 | if (ca->meter_id == NX_CTLR_NO_METER) { | |
6552 | ca->provider_meter_id = UINT32_MAX; | |
6553 | return true; | |
6554 | } | |
6555 | ||
6556 | const struct meter *meter = ofproto_get_meter(ofproto, ca->meter_id); | |
6557 | ||
6558 | if (meter && meter->provider_meter_id.uint32 != UINT32_MAX) { | |
6559 | /* Update the action with the provider's meter ID, so that we | |
6560 | * do not need any synchronization between ofproto_dpif_xlate | |
6561 | * and ofproto for meter table access. */ | |
6562 | ca->provider_meter_id = meter->provider_meter_id.uint32; | |
6563 | return true; | |
6564 | } | |
6565 | ||
6566 | /* Prevent the meter from being set by the ofproto provider. */ | |
6567 | ca->provider_meter_id = UINT32_MAX; | |
6568 | return false; | |
6569 | } | |
6570 | ||
062fea06 BP |
6571 | /* Finds the meter invoked by 'rule''s actions and adds 'rule' to the meter's |
6572 | * list of rules. */ | |
6573 | static void | |
6574 | meter_insert_rule(struct rule *rule) | |
6575 | { | |
6576 | const struct rule_actions *a = rule_get_actions(rule); | |
6577 | uint32_t meter_id = ofpacts_get_meter(a->ofpacts, a->ofpacts_len); | |
ba8cff36 | 6578 | struct meter *meter = ofproto_get_meter(rule->ofproto, meter_id); |
062fea06 | 6579 | |
417e7e66 | 6580 | ovs_list_insert(&meter->rules, &rule->meter_list_node); |
062fea06 BP |
6581 | } |
6582 | ||
9cae45dc JR |
6583 | static void |
6584 | meter_update(struct meter *meter, const struct ofputil_meter_config *config) | |
6585 | { | |
6586 | free(meter->bands); | |
6587 | ||
6588 | meter->flags = config->flags; | |
6589 | meter->n_bands = config->n_bands; | |
6590 | meter->bands = xmemdup(config->bands, | |
6591 | config->n_bands * sizeof *meter->bands); | |
6592 | } | |
6593 | ||
6594 | static struct meter * | |
6595 | meter_create(const struct ofputil_meter_config *config, | |
6596 | ofproto_meter_id provider_meter_id) | |
6597 | { | |
6598 | struct meter *meter; | |
6599 | ||
6600 | meter = xzalloc(sizeof *meter); | |
6601 | meter->provider_meter_id = provider_meter_id; | |
6602 | meter->created = time_msec(); | |
ba8cff36 | 6603 | meter->id = config->meter_id; |
417e7e66 | 6604 | ovs_list_init(&meter->rules); |
9cae45dc JR |
6605 | |
6606 | meter_update(meter, config); | |
6607 | ||
6608 | return meter; | |
6609 | } | |
6610 | ||
6b3f7f02 | 6611 | static void |
ba8cff36 | 6612 | meter_destroy(struct ofproto *ofproto, struct meter *meter) |
15aaf599 | 6613 | OVS_REQUIRES(ofproto_mutex) |
6b3f7f02 | 6614 | { |
9e638f22 AZ |
6615 | uint32_t *upcall_meter_ptr; |
6616 | upcall_meter_ptr = ofproto_upcall_meter_ptr(ofproto, meter->id); | |
6617 | if (upcall_meter_ptr) { | |
6618 | *upcall_meter_ptr = UINT32_MAX; | |
6619 | } | |
6620 | ||
ba8cff36 AZ |
6621 | if (!ovs_list_is_empty(&meter->rules)) { |
6622 | struct rule_collection rules; | |
6623 | struct rule *rule; | |
3059d7e5 | 6624 | |
ba8cff36 AZ |
6625 | rule_collection_init(&rules); |
6626 | LIST_FOR_EACH (rule, meter_list_node, &meter->rules) { | |
6627 | rule_collection_add(&rules, rule); | |
6628 | } | |
6629 | delete_flows__(&rules, OFPRR_METER_DELETE, NULL); | |
6630 | } | |
3059d7e5 | 6631 | |
ba8cff36 AZ |
6632 | ofproto->ofproto_class->meter_del(ofproto, meter->provider_meter_id); |
6633 | free(meter->bands); | |
6634 | free(meter); | |
6635 | } | |
3059d7e5 | 6636 | |
ba8cff36 AZ |
6637 | static void |
6638 | meter_delete(struct ofproto *ofproto, uint32_t meter_id) | |
6639 | OVS_REQUIRES(ofproto_mutex) | |
6640 | { | |
6641 | struct meter *meter = ofproto_get_meter(ofproto, meter_id); | |
6642 | ||
6643 | if (meter) { | |
6644 | hmap_remove(&ofproto->meters, &meter->node); | |
6645 | meter_destroy(ofproto, meter); | |
6646 | } | |
6647 | } | |
6648 | ||
6649 | static void | |
6650 | meter_delete_all(struct ofproto *ofproto) | |
6651 | OVS_REQUIRES(ofproto_mutex) | |
6652 | { | |
6653 | struct meter *meter, *next; | |
6654 | ||
6655 | HMAP_FOR_EACH_SAFE (meter, next, node, &ofproto->meters) { | |
6656 | hmap_remove(&ofproto->meters, &meter->node); | |
6657 | meter_destroy(ofproto, meter); | |
6b3f7f02 JR |
6658 | } |
6659 | } | |
6660 | ||
9cae45dc JR |
6661 | static enum ofperr |
6662 | handle_add_meter(struct ofproto *ofproto, struct ofputil_meter_mod *mm) | |
6663 | { | |
6664 | ofproto_meter_id provider_meter_id = { UINT32_MAX }; | |
ba8cff36 | 6665 | struct meter *meter = ofproto_get_meter(ofproto, mm->meter.meter_id); |
9cae45dc JR |
6666 | enum ofperr error; |
6667 | ||
ba8cff36 | 6668 | if (meter) { |
9cae45dc JR |
6669 | return OFPERR_OFPMMFC_METER_EXISTS; |
6670 | } | |
6671 | ||
6672 | error = ofproto->ofproto_class->meter_set(ofproto, &provider_meter_id, | |
6673 | &mm->meter); | |
6674 | if (!error) { | |
6675 | ovs_assert(provider_meter_id.uint32 != UINT32_MAX); | |
ba8cff36 AZ |
6676 | meter = meter_create(&mm->meter, provider_meter_id); |
6677 | ofproto_add_meter(ofproto, meter); | |
9cae45dc | 6678 | } |
f0f8c6c2 | 6679 | return error; |
9cae45dc JR |
6680 | } |
6681 | ||
6682 | static enum ofperr | |
6683 | handle_modify_meter(struct ofproto *ofproto, struct ofputil_meter_mod *mm) | |
6684 | { | |
ba8cff36 | 6685 | struct meter *meter = ofproto_get_meter(ofproto, mm->meter.meter_id); |
9cae45dc | 6686 | enum ofperr error; |
e555eb7c | 6687 | uint32_t provider_meter_id; |
9cae45dc JR |
6688 | |
6689 | if (!meter) { | |
6690 | return OFPERR_OFPMMFC_UNKNOWN_METER; | |
6691 | } | |
6692 | ||
e555eb7c | 6693 | provider_meter_id = meter->provider_meter_id.uint32; |
9cae45dc JR |
6694 | error = ofproto->ofproto_class->meter_set(ofproto, |
6695 | &meter->provider_meter_id, | |
6696 | &mm->meter); | |
e555eb7c | 6697 | ovs_assert(meter->provider_meter_id.uint32 == provider_meter_id); |
9cae45dc JR |
6698 | if (!error) { |
6699 | meter_update(meter, &mm->meter); | |
6700 | } | |
6701 | return error; | |
6702 | } | |
6703 | ||
6704 | static enum ofperr | |
baae3d02 | 6705 | handle_delete_meter(struct ofconn *ofconn, struct ofputil_meter_mod *mm) |
15aaf599 | 6706 | OVS_EXCLUDED(ofproto_mutex) |
9cae45dc JR |
6707 | { |
6708 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
6709 | uint32_t meter_id = mm->meter.meter_id; | |
9cae45dc | 6710 | |
ba8cff36 AZ |
6711 | /* OpenFlow does not support Meter ID 0. */ |
6712 | if (meter_id) { | |
6713 | ovs_mutex_lock(&ofproto_mutex); | |
6714 | ||
6715 | if (meter_id == OFPM13_ALL) { | |
6716 | meter_delete_all(ofproto); | |
6717 | } else { | |
6718 | meter_delete(ofproto, meter_id); | |
9cae45dc | 6719 | } |
9cae45dc | 6720 | |
ba8cff36 AZ |
6721 | ovs_mutex_unlock(&ofproto_mutex); |
6722 | } | |
a8e547c1 | 6723 | |
ba8cff36 | 6724 | return 0; |
9cae45dc JR |
6725 | } |
6726 | ||
6727 | static enum ofperr | |
6728 | handle_meter_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
6729 | { | |
6730 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
6731 | struct ofputil_meter_mod mm; | |
6732 | uint64_t bands_stub[256 / 8]; | |
6733 | struct ofpbuf bands; | |
6734 | uint32_t meter_id; | |
6735 | enum ofperr error; | |
6736 | ||
6737 | error = reject_slave_controller(ofconn); | |
6738 | if (error) { | |
6739 | return error; | |
6740 | } | |
6741 | ||
6742 | ofpbuf_use_stub(&bands, bands_stub, sizeof bands_stub); | |
6743 | ||
6744 | error = ofputil_decode_meter_mod(oh, &mm, &bands); | |
6745 | if (error) { | |
6746 | goto exit_free_bands; | |
6747 | } | |
6748 | ||
6749 | meter_id = mm.meter.meter_id; | |
6750 | ||
6751 | if (mm.command != OFPMC13_DELETE) { | |
6752 | /* Fails also when meters are not implemented by the provider. */ | |
9e638f22 | 6753 | if (ofproto->meter_features.max_meters == 0) { |
9cae45dc JR |
6754 | error = OFPERR_OFPMMFC_INVALID_METER; |
6755 | goto exit_free_bands; | |
9e638f22 AZ |
6756 | } |
6757 | ||
6758 | if (meter_id == 0) { | |
6759 | error = OFPERR_OFPMMFC_INVALID_METER; | |
b31e8700 | 6760 | goto exit_free_bands; |
9e638f22 AZ |
6761 | } else if (meter_id > OFPM13_MAX) { |
6762 | switch(meter_id) { | |
6763 | case OFPM13_SLOWPATH: | |
6764 | case OFPM13_CONTROLLER: | |
6765 | break; | |
6766 | case OFPM13_ALL: | |
6767 | default: | |
6768 | error = OFPERR_OFPMMFC_INVALID_METER; | |
6769 | goto exit_free_bands; | |
6770 | } | |
9cae45dc JR |
6771 | } |
6772 | if (mm.meter.n_bands > ofproto->meter_features.max_bands) { | |
6773 | error = OFPERR_OFPMMFC_OUT_OF_BANDS; | |
6774 | goto exit_free_bands; | |
6775 | } | |
6776 | } | |
6777 | ||
6778 | switch (mm.command) { | |
6779 | case OFPMC13_ADD: | |
6780 | error = handle_add_meter(ofproto, &mm); | |
6781 | break; | |
6782 | ||
6783 | case OFPMC13_MODIFY: | |
6784 | error = handle_modify_meter(ofproto, &mm); | |
6785 | break; | |
6786 | ||
6787 | case OFPMC13_DELETE: | |
baae3d02 | 6788 | error = handle_delete_meter(ofconn, &mm); |
9cae45dc JR |
6789 | break; |
6790 | ||
6791 | default: | |
6792 | error = OFPERR_OFPMMFC_BAD_COMMAND; | |
6793 | break; | |
6794 | } | |
6795 | ||
3c35db62 NR |
6796 | if (!error) { |
6797 | struct ofputil_requestforward rf; | |
6798 | rf.xid = oh->xid; | |
6799 | rf.reason = OFPRFR_METER_MOD; | |
6800 | rf.meter_mod = &mm; | |
6801 | connmgr_send_requestforward(ofproto->connmgr, ofconn, &rf); | |
6802 | } | |
6803 | ||
9cae45dc JR |
6804 | exit_free_bands: |
6805 | ofpbuf_uninit(&bands); | |
6806 | return error; | |
6807 | } | |
6808 | ||
6809 | static enum ofperr | |
6810 | handle_meter_features_request(struct ofconn *ofconn, | |
6811 | const struct ofp_header *request) | |
6812 | { | |
6813 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
6814 | struct ofputil_meter_features features; | |
6815 | struct ofpbuf *b; | |
6816 | ||
6817 | if (ofproto->ofproto_class->meter_get_features) { | |
6818 | ofproto->ofproto_class->meter_get_features(ofproto, &features); | |
6819 | } else { | |
6820 | memset(&features, 0, sizeof features); | |
6821 | } | |
6822 | b = ofputil_encode_meter_features_reply(&features, request); | |
6823 | ||
6824 | ofconn_send_reply(ofconn, b); | |
6825 | return 0; | |
6826 | } | |
6827 | ||
ba8cff36 AZ |
6828 | static void |
6829 | meter_request_reply(struct ofproto *ofproto, struct meter *meter, | |
6830 | enum ofptype type, struct ovs_list *replies) | |
6831 | { | |
6832 | uint64_t bands_stub[256 / 8]; | |
6833 | struct ofpbuf bands; | |
6834 | ||
6835 | ofpbuf_use_stub(&bands, bands_stub, sizeof bands_stub); | |
6836 | ||
6837 | if (type == OFPTYPE_METER_STATS_REQUEST) { | |
6838 | struct ofputil_meter_stats stats; | |
6839 | ||
6840 | stats.meter_id = meter->id; | |
6841 | ||
6842 | /* Provider sets the packet and byte counts, we do the rest. */ | |
6843 | stats.flow_count = ovs_list_size(&meter->rules); | |
6844 | calc_duration(meter->created, time_msec(), | |
6845 | &stats.duration_sec, &stats.duration_nsec); | |
6846 | stats.n_bands = meter->n_bands; | |
6847 | ofpbuf_clear(&bands); | |
6848 | stats.bands = ofpbuf_put_uninit(&bands, meter->n_bands | |
6849 | * sizeof *stats.bands); | |
6850 | ||
6851 | if (!ofproto->ofproto_class->meter_get(ofproto, | |
6852 | meter->provider_meter_id, | |
6853 | &stats, meter->n_bands)) { | |
6854 | ofputil_append_meter_stats(replies, &stats); | |
6855 | } | |
6856 | } else { /* type == OFPTYPE_METER_CONFIG_REQUEST */ | |
6857 | struct ofputil_meter_config config; | |
6858 | ||
6859 | config.meter_id = meter->id; | |
6860 | config.flags = meter->flags; | |
6861 | config.n_bands = meter->n_bands; | |
6862 | config.bands = meter->bands; | |
6863 | ofputil_append_meter_config(replies, &config); | |
6864 | } | |
6865 | ||
6866 | ofpbuf_uninit(&bands); | |
6867 | } | |
6868 | ||
6869 | static void | |
6870 | meter_request_reply_all(struct ofproto *ofproto, enum ofptype type, | |
6871 | struct ovs_list *replies) | |
6872 | { | |
6873 | struct meter *meter; | |
6874 | ||
6875 | HMAP_FOR_EACH (meter, node, &ofproto->meters) { | |
6876 | meter_request_reply(ofproto, meter, type, replies); | |
6877 | } | |
6878 | } | |
6879 | ||
9cae45dc JR |
6880 | static enum ofperr |
6881 | handle_meter_request(struct ofconn *ofconn, const struct ofp_header *request, | |
6882 | enum ofptype type) | |
6883 | { | |
6884 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
ca6ba700 | 6885 | struct ovs_list replies; |
ba8cff36 AZ |
6886 | uint32_t meter_id; |
6887 | struct meter *meter; | |
9cae45dc JR |
6888 | |
6889 | ofputil_decode_meter_request(request, &meter_id); | |
6890 | ||
ba8cff36 AZ |
6891 | if (meter_id != OFPM13_ALL) { |
6892 | meter = ofproto_get_meter(ofproto, meter_id); | |
6893 | if (!meter) { | |
6894 | /* Meter does not exist. */ | |
9cae45dc JR |
6895 | return OFPERR_OFPMMFC_UNKNOWN_METER; |
6896 | } | |
ba8cff36 AZ |
6897 | } else { |
6898 | /* GCC 4.9.2 complains about 'meter' can potentially be used | |
6899 | * uninitialized. Logically, this is a false alarm since | |
6900 | * meter is only used when meter_id != OFPM13_ALL. | |
6901 | * Set NULL to make compiler happy. */ | |
6902 | meter = NULL; | |
9cae45dc JR |
6903 | } |
6904 | ||
9cae45dc | 6905 | ofpmp_init(&replies, request); |
ba8cff36 AZ |
6906 | if (meter_id == OFPM13_ALL) { |
6907 | meter_request_reply_all(ofproto, type, &replies); | |
6908 | } else { | |
6909 | meter_request_reply(ofproto, meter, type, &replies); | |
9cae45dc | 6910 | } |
9cae45dc | 6911 | ofconn_send_replies(ofconn, &replies); |
9cae45dc JR |
6912 | return 0; |
6913 | } | |
6914 | ||
db88b35c JR |
6915 | /* Returned group is RCU protected. */ |
6916 | static struct ofgroup * | |
5d08a275 JR |
6917 | ofproto_group_lookup__(const struct ofproto *ofproto, uint32_t group_id, |
6918 | ovs_version_t version) | |
db88b35c JR |
6919 | { |
6920 | struct ofgroup *group; | |
6921 | ||
6922 | CMAP_FOR_EACH_WITH_HASH (group, cmap_node, hash_int(group_id, 0), | |
6923 | &ofproto->groups) { | |
5d08a275 JR |
6924 | if (group->group_id == group_id |
6925 | && versions_visible_in_version(&group->versions, version)) { | |
db88b35c | 6926 | return group; |
7395c052 NZ |
6927 | } |
6928 | } | |
3fc3b679 | 6929 | |
db88b35c | 6930 | return NULL; |
7395c052 NZ |
6931 | } |
6932 | ||
3fc3b679 AZ |
6933 | /* If the group exists, this function increments the groups's reference count. |
6934 | * | |
6935 | * Make sure to call ofproto_group_unref() after no longer needing to maintain | |
6936 | * a reference to the group. */ | |
db88b35c | 6937 | struct ofgroup * |
76973237 | 6938 | ofproto_group_lookup(const struct ofproto *ofproto, uint32_t group_id, |
5d08a275 | 6939 | ovs_version_t version, bool take_ref) |
7395c052 | 6940 | { |
db88b35c | 6941 | struct ofgroup *group; |
7395c052 | 6942 | |
5d08a275 | 6943 | group = ofproto_group_lookup__(ofproto, group_id, version); |
76973237 | 6944 | if (group && take_ref) { |
db88b35c JR |
6945 | /* Not holding a lock, so it is possible that another thread releases |
6946 | * the last reference just before we manage to get one. */ | |
6947 | return ofproto_group_try_ref(group) ? group : NULL; | |
7395c052 | 6948 | } |
76973237 | 6949 | return group; |
7395c052 NZ |
6950 | } |
6951 | ||
cc099268 | 6952 | /* Caller should hold 'ofproto_mutex' if it is important that the |
db88b35c | 6953 | * group is not removed by someone else. */ |
7e9f8266 BP |
6954 | static bool |
6955 | ofproto_group_exists(const struct ofproto *ofproto, uint32_t group_id) | |
7e9f8266 | 6956 | { |
5d08a275 | 6957 | return ofproto_group_lookup__(ofproto, group_id, OVS_VERSION_MAX) != NULL; |
7e9f8266 BP |
6958 | } |
6959 | ||
cc099268 JR |
6960 | static void |
6961 | group_add_rule(struct ofgroup *group, struct rule *rule) | |
732feb93 | 6962 | { |
cc099268 JR |
6963 | rule_collection_add(&group->rules, rule); |
6964 | } | |
732feb93 | 6965 | |
cc099268 JR |
6966 | static void |
6967 | group_remove_rule(struct ofgroup *group, struct rule *rule) | |
6968 | { | |
6969 | rule_collection_remove(&group->rules, rule); | |
732feb93 SH |
6970 | } |
6971 | ||
7395c052 | 6972 | static void |
ca6ba700 | 6973 | append_group_stats(struct ofgroup *group, struct ovs_list *replies) |
cc099268 | 6974 | OVS_REQUIRES(ofproto_mutex) |
7395c052 NZ |
6975 | { |
6976 | struct ofputil_group_stats ogs; | |
eaf004bd | 6977 | const struct ofproto *ofproto = group->ofproto; |
7395c052 NZ |
6978 | long long int now = time_msec(); |
6979 | int error; | |
6980 | ||
646b2a9c SH |
6981 | ogs.bucket_stats = xmalloc(group->n_buckets * sizeof *ogs.bucket_stats); |
6982 | ||
732feb93 | 6983 | /* Provider sets the packet and byte counts, we do the rest. */ |
fe59694b | 6984 | ogs.ref_count = rule_collection_n(&group->rules); |
732feb93 SH |
6985 | ogs.n_buckets = group->n_buckets; |
6986 | ||
7395c052 NZ |
6987 | error = (ofproto->ofproto_class->group_get_stats |
6988 | ? ofproto->ofproto_class->group_get_stats(group, &ogs) | |
6989 | : EOPNOTSUPP); | |
6990 | if (error) { | |
7395c052 NZ |
6991 | ogs.packet_count = UINT64_MAX; |
6992 | ogs.byte_count = UINT64_MAX; | |
7395c052 NZ |
6993 | memset(ogs.bucket_stats, 0xff, |
6994 | ogs.n_buckets * sizeof *ogs.bucket_stats); | |
6995 | } | |
6996 | ||
6997 | ogs.group_id = group->group_id; | |
6998 | calc_duration(group->created, now, &ogs.duration_sec, &ogs.duration_nsec); | |
6999 | ||
7000 | ofputil_append_group_stats(replies, &ogs); | |
646b2a9c SH |
7001 | |
7002 | free(ogs.bucket_stats); | |
7395c052 NZ |
7003 | } |
7004 | ||
19187a71 BP |
7005 | static void |
7006 | handle_group_request(struct ofconn *ofconn, | |
7007 | const struct ofp_header *request, uint32_t group_id, | |
ca6ba700 | 7008 | void (*cb)(struct ofgroup *, struct ovs_list *replies)) |
cc099268 | 7009 | OVS_EXCLUDED(ofproto_mutex) |
7395c052 NZ |
7010 | { |
7011 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
7395c052 | 7012 | struct ofgroup *group; |
ca6ba700 | 7013 | struct ovs_list replies; |
7395c052 NZ |
7014 | |
7015 | ofpmp_init(&replies, request); | |
cc099268 JR |
7016 | /* Must exclude modifications to guarantee iterating groups. */ |
7017 | ovs_mutex_lock(&ofproto_mutex); | |
7395c052 | 7018 | if (group_id == OFPG_ALL) { |
db88b35c | 7019 | CMAP_FOR_EACH (group, cmap_node, &ofproto->groups) { |
3a46eaaf BP |
7020 | if (versions_visible_in_version(&group->versions, |
7021 | OVS_VERSION_MAX)) { | |
7022 | cb(group, &replies); | |
7023 | } | |
7395c052 | 7024 | } |
7395c052 | 7025 | } else { |
5d08a275 | 7026 | group = ofproto_group_lookup__(ofproto, group_id, OVS_VERSION_MAX); |
db88b35c | 7027 | if (group) { |
19187a71 | 7028 | cb(group, &replies); |
7395c052 NZ |
7029 | } |
7030 | } | |
cc099268 | 7031 | ovs_mutex_unlock(&ofproto_mutex); |
7395c052 | 7032 | ofconn_send_replies(ofconn, &replies); |
7395c052 NZ |
7033 | } |
7034 | ||
7035 | static enum ofperr | |
19187a71 BP |
7036 | handle_group_stats_request(struct ofconn *ofconn, |
7037 | const struct ofp_header *request) | |
7395c052 | 7038 | { |
19187a71 BP |
7039 | uint32_t group_id; |
7040 | enum ofperr error; | |
7395c052 | 7041 | |
19187a71 BP |
7042 | error = ofputil_decode_group_stats_request(request, &group_id); |
7043 | if (error) { | |
7044 | return error; | |
7395c052 | 7045 | } |
7395c052 | 7046 | |
19187a71 BP |
7047 | handle_group_request(ofconn, request, group_id, append_group_stats); |
7048 | return 0; | |
7049 | } | |
7050 | ||
7051 | static void | |
ca6ba700 | 7052 | append_group_desc(struct ofgroup *group, struct ovs_list *replies) |
19187a71 BP |
7053 | { |
7054 | struct ofputil_group_desc gds; | |
7395c052 | 7055 | |
19187a71 BP |
7056 | gds.group_id = group->group_id; |
7057 | gds.type = group->type; | |
53eb84a5 SH |
7058 | gds.props = group->props; |
7059 | ||
19187a71 BP |
7060 | ofputil_append_group_desc_reply(&gds, &group->buckets, replies); |
7061 | } | |
7062 | ||
7063 | static enum ofperr | |
7064 | handle_group_desc_stats_request(struct ofconn *ofconn, | |
7065 | const struct ofp_header *request) | |
7066 | { | |
7067 | handle_group_request(ofconn, request, | |
7068 | ofputil_decode_group_desc_request(request), | |
7069 | append_group_desc); | |
7395c052 NZ |
7070 | return 0; |
7071 | } | |
7072 | ||
7073 | static enum ofperr | |
7074 | handle_group_features_stats_request(struct ofconn *ofconn, | |
7075 | const struct ofp_header *request) | |
7076 | { | |
7077 | struct ofproto *p = ofconn_get_ofproto(ofconn); | |
7078 | struct ofpbuf *msg; | |
7079 | ||
7080 | msg = ofputil_encode_group_features_reply(&p->ogf, request); | |
7081 | if (msg) { | |
7082 | ofconn_send_reply(ofconn, msg); | |
7083 | } | |
7084 | ||
7085 | return 0; | |
7086 | } | |
7087 | ||
56085be5 | 7088 | static void |
e016fb63 BP |
7089 | put_queue_get_config_reply(struct ofport *port, uint32_t queue, |
7090 | struct ovs_list *replies) | |
e8f9a7bb | 7091 | { |
e016fb63 | 7092 | struct ofputil_queue_config qc; |
e8f9a7bb | 7093 | |
e016fb63 BP |
7094 | /* None of the existing queues have compatible properties, so we hard-code |
7095 | * omitting min_rate and max_rate. */ | |
7096 | qc.port = port->ofp_port; | |
7097 | qc.queue = queue; | |
7098 | qc.min_rate = UINT16_MAX; | |
7099 | qc.max_rate = UINT16_MAX; | |
7100 | ofputil_append_queue_get_config_reply(&qc, replies); | |
7101 | } | |
e8f9a7bb | 7102 | |
e016fb63 BP |
7103 | static int |
7104 | handle_queue_get_config_request_for_port(struct ofport *port, uint32_t queue, | |
7105 | struct ovs_list *replies) | |
7106 | { | |
7107 | struct smap details = SMAP_INITIALIZER(&details); | |
7108 | if (queue != OFPQ_ALL) { | |
7109 | int error = netdev_get_queue(port->netdev, queue, &details); | |
7110 | switch (error) { | |
7111 | case 0: | |
7112 | put_queue_get_config_reply(port, queue, replies); | |
7113 | break; | |
7114 | case EOPNOTSUPP: | |
7115 | case EINVAL: | |
7116 | return OFPERR_OFPQOFC_BAD_QUEUE; | |
7117 | default: | |
7118 | return OFPERR_NXQOFC_QUEUE_ERROR; | |
7119 | } | |
7120 | } else { | |
7121 | struct netdev_queue_dump queue_dump; | |
7122 | uint32_t queue_id; | |
7123 | ||
7124 | NETDEV_QUEUE_FOR_EACH (&queue_id, &details, &queue_dump, | |
7125 | port->netdev) { | |
7126 | put_queue_get_config_reply(port, queue_id, replies); | |
7127 | } | |
7128 | } | |
7129 | smap_destroy(&details); | |
7130 | return 0; | |
56085be5 BP |
7131 | } |
7132 | ||
7133 | static enum ofperr | |
7134 | handle_queue_get_config_request(struct ofconn *ofconn, | |
7135 | const struct ofp_header *oh) | |
7136 | { | |
e016fb63 BP |
7137 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
7138 | struct ovs_list replies; | |
7139 | struct ofport *port; | |
7140 | ofp_port_t req_port; | |
7141 | uint32_t req_queue; | |
7142 | enum ofperr error; | |
7143 | ||
7144 | error = ofputil_decode_queue_get_config_request(oh, &req_port, &req_queue); | |
7145 | if (error) { | |
7146 | return error; | |
7147 | } | |
7148 | ||
7149 | ofputil_start_queue_get_config_reply(oh, &replies); | |
7150 | if (req_port == OFPP_ANY) { | |
7151 | error = OFPERR_OFPQOFC_BAD_QUEUE; | |
7152 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { | |
7153 | if (!handle_queue_get_config_request_for_port(port, req_queue, | |
7154 | &replies)) { | |
7155 | error = 0; | |
7156 | } | |
7157 | } | |
7158 | } else { | |
7159 | port = ofproto_get_port(ofproto, req_port); | |
7160 | error = (port | |
7161 | ? handle_queue_get_config_request_for_port(port, req_queue, | |
7162 | &replies) | |
7163 | : OFPERR_OFPQOFC_BAD_PORT); | |
7164 | } | |
7165 | if (!error) { | |
7166 | ofconn_send_replies(ofconn, &replies); | |
7167 | } else { | |
7168 | ofpbuf_list_delete(&replies); | |
7169 | } | |
7170 | ||
7171 | return error; | |
e8f9a7bb VG |
7172 | } |
7173 | ||
836476ce BP |
7174 | /* Allocates, initializes, and constructs a new group in 'ofproto', obtaining |
7175 | * all the attributes for it from 'gm', and stores a pointer to it in | |
7176 | * '*ofgroup'. Makes the new group visible from the flow table starting from | |
7177 | * 'version'. | |
7178 | * | |
7179 | * Returns 0 if successful, otherwise an error code. If there is an error then | |
7180 | * '*ofgroup' is indeterminate upon return. */ | |
809c7548 | 7181 | static enum ofperr |
63eded98 | 7182 | init_group(struct ofproto *ofproto, const struct ofputil_group_mod *gm, |
5d08a275 | 7183 | ovs_version_t version, struct ofgroup **ofgroup) |
809c7548 RW |
7184 | { |
7185 | enum ofperr error; | |
eaf004bd | 7186 | const long long int now = time_msec(); |
809c7548 RW |
7187 | |
7188 | if (gm->group_id > OFPG_MAX) { | |
7189 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
7190 | } | |
7191 | if (gm->type > OFPGT11_FF) { | |
7192 | return OFPERR_OFPGMFC_BAD_TYPE; | |
7193 | } | |
7194 | ||
7195 | *ofgroup = ofproto->ofproto_class->group_alloc(); | |
7196 | if (!*ofgroup) { | |
7197 | VLOG_WARN_RL(&rl, "%s: failed to allocate group", ofproto->name); | |
7198 | return OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
7199 | } | |
7200 | ||
5d08a275 | 7201 | *CONST_CAST(struct ofproto **, &(*ofgroup)->ofproto) = ofproto; |
eaf004bd AZ |
7202 | *CONST_CAST(uint32_t *, &((*ofgroup)->group_id)) = gm->group_id; |
7203 | *CONST_CAST(enum ofp11_group_type *, &(*ofgroup)->type) = gm->type; | |
7204 | *CONST_CAST(long long int *, &((*ofgroup)->created)) = now; | |
7205 | *CONST_CAST(long long int *, &((*ofgroup)->modified)) = now; | |
809c7548 | 7206 | ovs_refcount_init(&(*ofgroup)->ref_count); |
cc099268 | 7207 | (*ofgroup)->being_deleted = false; |
809c7548 | 7208 | |
db88b35c JR |
7209 | ovs_list_init(CONST_CAST(struct ovs_list *, &(*ofgroup)->buckets)); |
7210 | ofputil_bucket_clone_list(CONST_CAST(struct ovs_list *, | |
7211 | &(*ofgroup)->buckets), | |
7212 | &gm->buckets, NULL); | |
63eded98 | 7213 | |
eaf004bd | 7214 | *CONST_CAST(uint32_t *, &(*ofgroup)->n_buckets) = |
417e7e66 | 7215 | ovs_list_size(&(*ofgroup)->buckets); |
809c7548 | 7216 | |
e8dba719 JR |
7217 | ofputil_group_properties_copy(CONST_CAST(struct ofputil_group_props *, |
7218 | &(*ofgroup)->props), | |
7219 | &gm->props); | |
cc099268 | 7220 | rule_collection_init(&(*ofgroup)->rules); |
bc65c25a | 7221 | |
5d08a275 JR |
7222 | /* Make group visible from 'version'. */ |
7223 | (*ofgroup)->versions = VERSIONS_INITIALIZER(version, | |
7224 | OVS_VERSION_NOT_REMOVED); | |
7225 | ||
809c7548 RW |
7226 | /* Construct called BEFORE any locks are held. */ |
7227 | error = ofproto->ofproto_class->group_construct(*ofgroup); | |
7228 | if (error) { | |
e8dba719 JR |
7229 | ofputil_group_properties_destroy(CONST_CAST(struct ofputil_group_props *, |
7230 | &(*ofgroup)->props)); | |
db88b35c JR |
7231 | ofputil_bucket_list_destroy(CONST_CAST(struct ovs_list *, |
7232 | &(*ofgroup)->buckets)); | |
809c7548 RW |
7233 | ofproto->ofproto_class->group_dealloc(*ofgroup); |
7234 | } | |
7235 | return error; | |
7236 | } | |
7237 | ||
6c5b90ce BP |
7238 | /* Implements the OFPGC11_ADD operation specified by 'gm', adding a group to |
7239 | * 'ofproto''s group table. Returns 0 on success or an OpenFlow error code on | |
7240 | * failure. */ | |
7395c052 | 7241 | static enum ofperr |
2b0b0b80 | 7242 | add_group_start(struct ofproto *ofproto, struct ofproto_group_mod *ogm) |
cc099268 | 7243 | OVS_REQUIRES(ofproto_mutex) |
7395c052 | 7244 | { |
7395c052 NZ |
7245 | enum ofperr error; |
7246 | ||
2b0b0b80 JR |
7247 | if (ofproto_group_exists(ofproto, ogm->gm.group_id)) { |
7248 | return OFPERR_OFPGMFC_GROUP_EXISTS; | |
7395c052 NZ |
7249 | } |
7250 | ||
2b0b0b80 JR |
7251 | if (ofproto->n_groups[ogm->gm.type] |
7252 | >= ofproto->ogf.max_groups[ogm->gm.type]) { | |
7253 | return OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
7395c052 NZ |
7254 | } |
7255 | ||
2b0b0b80 | 7256 | /* Allocate new group and initialize it. */ |
5d08a275 | 7257 | error = init_group(ofproto, &ogm->gm, ogm->version, &ogm->new_group); |
2b0b0b80 JR |
7258 | if (!error) { |
7259 | /* Insert new group. */ | |
7260 | cmap_insert(&ofproto->groups, &ogm->new_group->cmap_node, | |
7261 | hash_int(ogm->new_group->group_id, 0)); | |
7262 | ofproto->n_groups[ogm->new_group->type]++; | |
7395c052 | 7263 | } |
7395c052 NZ |
7264 | return error; |
7265 | } | |
7266 | ||
fce4730c SH |
7267 | /* Adds all of the buckets from 'ofgroup' to 'new_ofgroup'. The buckets |
7268 | * already in 'new_ofgroup' will be placed just after the (copy of the) bucket | |
7269 | * in 'ofgroup' with bucket ID 'command_bucket_id'. Special | |
7270 | * 'command_bucket_id' values OFPG15_BUCKET_FIRST and OFPG15_BUCKET_LAST are | |
7271 | * also honored. */ | |
7272 | static enum ofperr | |
7273 | copy_buckets_for_insert_bucket(const struct ofgroup *ofgroup, | |
7274 | struct ofgroup *new_ofgroup, | |
7275 | uint32_t command_bucket_id) | |
7276 | { | |
7277 | struct ofputil_bucket *last = NULL; | |
7278 | ||
7279 | if (command_bucket_id <= OFPG15_BUCKET_MAX) { | |
7280 | /* Check here to ensure that a bucket corresponding to | |
7281 | * command_bucket_id exists in the old bucket list. | |
7282 | * | |
7283 | * The subsequent search of below of new_ofgroup covers | |
7284 | * both buckets in the old bucket list and buckets added | |
7285 | * by the insert buckets group mod message this function processes. */ | |
7286 | if (!ofputil_bucket_find(&ofgroup->buckets, command_bucket_id)) { | |
7287 | return OFPERR_OFPGMFC_UNKNOWN_BUCKET; | |
7288 | } | |
7289 | ||
417e7e66 | 7290 | if (!ovs_list_is_empty(&new_ofgroup->buckets)) { |
fce4730c SH |
7291 | last = ofputil_bucket_list_back(&new_ofgroup->buckets); |
7292 | } | |
7293 | } | |
7294 | ||
db88b35c JR |
7295 | ofputil_bucket_clone_list(CONST_CAST(struct ovs_list *, |
7296 | &new_ofgroup->buckets), | |
7297 | &ofgroup->buckets, NULL); | |
fce4730c | 7298 | |
23a31238 | 7299 | if (ofputil_bucket_check_duplicate_id(&new_ofgroup->buckets)) { |
d2873d53 | 7300 | VLOG_INFO_RL(&rl, "Duplicate bucket id"); |
fce4730c SH |
7301 | return OFPERR_OFPGMFC_BUCKET_EXISTS; |
7302 | } | |
7303 | ||
7304 | /* Rearrange list according to command_bucket_id */ | |
7305 | if (command_bucket_id == OFPG15_BUCKET_LAST) { | |
417e7e66 | 7306 | if (!ovs_list_is_empty(&ofgroup->buckets)) { |
8e19e655 BP |
7307 | struct ofputil_bucket *new_first; |
7308 | const struct ofputil_bucket *first; | |
fce4730c | 7309 | |
8e19e655 BP |
7310 | first = ofputil_bucket_list_front(&ofgroup->buckets); |
7311 | new_first = ofputil_bucket_find(&new_ofgroup->buckets, | |
7312 | first->bucket_id); | |
fce4730c | 7313 | |
417e7e66 | 7314 | ovs_list_splice(new_ofgroup->buckets.next, &new_first->list_node, |
db88b35c JR |
7315 | CONST_CAST(struct ovs_list *, |
7316 | &new_ofgroup->buckets)); | |
8e19e655 | 7317 | } |
fce4730c SH |
7318 | } else if (command_bucket_id <= OFPG15_BUCKET_MAX && last) { |
7319 | struct ofputil_bucket *after; | |
7320 | ||
7321 | /* Presence of bucket is checked above so after should never be NULL */ | |
7322 | after = ofputil_bucket_find(&new_ofgroup->buckets, command_bucket_id); | |
7323 | ||
417e7e66 | 7324 | ovs_list_splice(after->list_node.next, new_ofgroup->buckets.next, |
fce4730c SH |
7325 | last->list_node.next); |
7326 | } | |
7327 | ||
7328 | return 0; | |
7329 | } | |
7330 | ||
7331 | /* Appends all of the a copy of all the buckets from 'ofgroup' to 'new_ofgroup' | |
7332 | * with the exception of the bucket whose bucket id is 'command_bucket_id'. | |
7333 | * Special 'command_bucket_id' values OFPG15_BUCKET_FIRST, OFPG15_BUCKET_LAST | |
7334 | * and OFPG15_BUCKET_ALL are also honored. */ | |
7335 | static enum ofperr | |
7336 | copy_buckets_for_remove_bucket(const struct ofgroup *ofgroup, | |
7337 | struct ofgroup *new_ofgroup, | |
7338 | uint32_t command_bucket_id) | |
7339 | { | |
7340 | const struct ofputil_bucket *skip = NULL; | |
7341 | ||
7342 | if (command_bucket_id == OFPG15_BUCKET_ALL) { | |
7343 | return 0; | |
7344 | } | |
7345 | ||
7346 | if (command_bucket_id == OFPG15_BUCKET_FIRST) { | |
417e7e66 | 7347 | if (!ovs_list_is_empty(&ofgroup->buckets)) { |
fce4730c SH |
7348 | skip = ofputil_bucket_list_front(&ofgroup->buckets); |
7349 | } | |
7350 | } else if (command_bucket_id == OFPG15_BUCKET_LAST) { | |
417e7e66 | 7351 | if (!ovs_list_is_empty(&ofgroup->buckets)) { |
fce4730c SH |
7352 | skip = ofputil_bucket_list_back(&ofgroup->buckets); |
7353 | } | |
7354 | } else { | |
7355 | skip = ofputil_bucket_find(&ofgroup->buckets, command_bucket_id); | |
7356 | if (!skip) { | |
7357 | return OFPERR_OFPGMFC_UNKNOWN_BUCKET; | |
7358 | } | |
7359 | } | |
7360 | ||
db88b35c JR |
7361 | ofputil_bucket_clone_list(CONST_CAST(struct ovs_list *, |
7362 | &new_ofgroup->buckets), | |
7363 | &ofgroup->buckets, skip); | |
fce4730c SH |
7364 | |
7365 | return 0; | |
7366 | } | |
7367 | ||
7368 | /* Implements OFPGC11_MODIFY, OFPGC15_INSERT_BUCKET and | |
7369 | * OFPGC15_REMOVE_BUCKET. Returns 0 on success or an OpenFlow error code | |
6c5b90ce | 7370 | * on failure. |
7395c052 | 7371 | * |
809c7548 RW |
7372 | * Note that the group is re-created and then replaces the old group in |
7373 | * ofproto's ofgroup hash map. Thus, the group is never altered while users of | |
6c5b90ce | 7374 | * the xlate module hold a pointer to the group. */ |
7395c052 | 7375 | static enum ofperr |
2b0b0b80 | 7376 | modify_group_start(struct ofproto *ofproto, struct ofproto_group_mod *ogm) |
cc099268 | 7377 | OVS_REQUIRES(ofproto_mutex) |
7395c052 | 7378 | { |
2b0b0b80 JR |
7379 | struct ofgroup *old_group; /* Modified group. */ |
7380 | struct ofgroup *new_group; | |
7395c052 NZ |
7381 | enum ofperr error; |
7382 | ||
5d08a275 JR |
7383 | old_group = ofproto_group_lookup__(ofproto, ogm->gm.group_id, |
7384 | OVS_VERSION_MAX); | |
2b0b0b80 JR |
7385 | if (!old_group) { |
7386 | return OFPERR_OFPGMFC_UNKNOWN_GROUP; | |
7395c052 NZ |
7387 | } |
7388 | ||
836476ce BP |
7389 | /* Inserting or deleting a bucket should not change the group's type or |
7390 | * properties, so change the group mod so that these aspects match the old | |
7391 | * group. (See EXT-570.) */ | |
7392 | if (ogm->gm.command == OFPGC15_INSERT_BUCKET || | |
7393 | ogm->gm.command == OFPGC15_REMOVE_BUCKET) { | |
7394 | ogm->gm.type = old_group->type; | |
7395 | ofputil_group_properties_destroy(&ogm->gm.props); | |
7396 | ofputil_group_properties_copy(&ogm->gm.props, &old_group->props); | |
7397 | } | |
7398 | ||
2b0b0b80 JR |
7399 | if (old_group->type != ogm->gm.type |
7400 | && (ofproto->n_groups[ogm->gm.type] | |
7401 | >= ofproto->ogf.max_groups[ogm->gm.type])) { | |
7402 | return OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
7395c052 | 7403 | } |
809c7548 | 7404 | |
5d08a275 | 7405 | error = init_group(ofproto, &ogm->gm, ogm->version, &ogm->new_group); |
2b0b0b80 JR |
7406 | if (error) { |
7407 | return error; | |
7395c052 | 7408 | } |
2b0b0b80 | 7409 | new_group = ogm->new_group; |
7395c052 | 7410 | |
fce4730c | 7411 | /* Manipulate bucket list for bucket commands */ |
2b0b0b80 JR |
7412 | if (ogm->gm.command == OFPGC15_INSERT_BUCKET) { |
7413 | error = copy_buckets_for_insert_bucket(old_group, new_group, | |
7414 | ogm->gm.command_bucket_id); | |
7415 | } else if (ogm->gm.command == OFPGC15_REMOVE_BUCKET) { | |
7416 | error = copy_buckets_for_remove_bucket(old_group, new_group, | |
7417 | ogm->gm.command_bucket_id); | |
fce4730c SH |
7418 | } |
7419 | if (error) { | |
7420 | goto out; | |
7421 | } | |
7422 | ||
809c7548 | 7423 | /* The group creation time does not change during modification. */ |
2b0b0b80 JR |
7424 | *CONST_CAST(long long int *, &(new_group->created)) = old_group->created; |
7425 | *CONST_CAST(long long int *, &(new_group->modified)) = time_msec(); | |
7395c052 | 7426 | |
2b0b0b80 | 7427 | group_collection_add(&ogm->old_groups, old_group); |
db88b35c | 7428 | |
5d08a275 JR |
7429 | /* Mark the old group for deletion. */ |
7430 | versions_set_remove_version(&old_group->versions, ogm->version); | |
7431 | /* Insert replacement group. */ | |
7432 | cmap_insert(&ofproto->groups, &new_group->cmap_node, | |
7433 | hash_int(new_group->group_id, 0)); | |
cc099268 | 7434 | /* Transfer rules. */ |
2b0b0b80 | 7435 | rule_collection_move(&new_group->rules, &old_group->rules); |
db88b35c | 7436 | |
2b0b0b80 JR |
7437 | if (old_group->type != new_group->type) { |
7438 | ofproto->n_groups[old_group->type]--; | |
7439 | ofproto->n_groups[new_group->type]++; | |
7395c052 | 7440 | } |
2b0b0b80 | 7441 | return 0; |
7395c052 | 7442 | |
809c7548 | 7443 | out: |
2b0b0b80 | 7444 | ofproto_group_unref(new_group); |
7395c052 NZ |
7445 | return error; |
7446 | } | |
7447 | ||
88b87a36 JS |
7448 | /* Implements the OFPGC11_ADD_OR_MOD command which creates the group when it does not |
7449 | * exist yet and modifies it otherwise */ | |
7450 | static enum ofperr | |
2b0b0b80 JR |
7451 | add_or_modify_group_start(struct ofproto *ofproto, |
7452 | struct ofproto_group_mod *ogm) | |
cc099268 | 7453 | OVS_REQUIRES(ofproto_mutex) |
88b87a36 | 7454 | { |
88b87a36 | 7455 | enum ofperr error; |
88b87a36 | 7456 | |
2b0b0b80 JR |
7457 | if (!ofproto_group_exists(ofproto, ogm->gm.group_id)) { |
7458 | error = add_group_start(ofproto, ogm); | |
88b87a36 | 7459 | } else { |
2b0b0b80 | 7460 | error = modify_group_start(ofproto, ogm); |
88b87a36 | 7461 | } |
cc099268 | 7462 | |
88b87a36 JS |
7463 | return error; |
7464 | } | |
7465 | ||
7395c052 | 7466 | static void |
5d08a275 JR |
7467 | delete_group_start(struct ofproto *ofproto, ovs_version_t version, |
7468 | struct group_collection *groups, struct ofgroup *group) | |
cc099268 | 7469 | OVS_REQUIRES(ofproto_mutex) |
7395c052 | 7470 | { |
2b0b0b80 | 7471 | /* Makes flow deletion code leave the rule pointers in 'group->rules' |
cc099268 JR |
7472 | * intact, so that we can later refer to the rules deleted due to the group |
7473 | * deletion. Rule pointers will be removed from all other groups, if any, | |
7474 | * so we will never try to delete the same rule twice. */ | |
2b0b0b80 JR |
7475 | group->being_deleted = true; |
7476 | ||
7477 | /* Mark all the referring groups for deletion. */ | |
5d08a275 | 7478 | delete_flows_start__(ofproto, version, &group->rules); |
2b0b0b80 | 7479 | group_collection_add(groups, group); |
5d08a275 | 7480 | versions_set_remove_version(&group->versions, version); |
2b0b0b80 JR |
7481 | ofproto->n_groups[group->type]--; |
7482 | } | |
276f6518 | 7483 | |
2b0b0b80 JR |
7484 | static void |
7485 | delete_group_finish(struct ofproto *ofproto, struct ofgroup *group) | |
7486 | OVS_REQUIRES(ofproto_mutex) | |
7487 | { | |
7488 | /* Finish deletion of all flow entries containing this group in a group | |
7489 | * action. */ | |
7490 | delete_flows_finish__(ofproto, &group->rules, OFPRR_GROUP_DELETE, NULL); | |
276f6518 | 7491 | |
5d08a275 | 7492 | /* Group removal is postponed by the caller. */ |
7395c052 NZ |
7493 | } |
7494 | ||
6c5b90ce | 7495 | /* Implements OFPGC11_DELETE. */ |
7395c052 | 7496 | static void |
2b0b0b80 | 7497 | delete_groups_start(struct ofproto *ofproto, struct ofproto_group_mod *ogm) |
cc099268 | 7498 | OVS_REQUIRES(ofproto_mutex) |
7395c052 | 7499 | { |
2b0b0b80 | 7500 | struct ofgroup *group; |
7395c052 | 7501 | |
2b0b0b80 JR |
7502 | if (ogm->gm.group_id == OFPG_ALL) { |
7503 | CMAP_FOR_EACH (group, cmap_node, &ofproto->groups) { | |
5d08a275 JR |
7504 | if (versions_visible_in_version(&group->versions, ogm->version)) { |
7505 | delete_group_start(ofproto, ogm->version, &ogm->old_groups, | |
7506 | group); | |
7507 | } | |
7395c052 NZ |
7508 | } |
7509 | } else { | |
5d08a275 JR |
7510 | group = ofproto_group_lookup__(ofproto, ogm->gm.group_id, ogm->version); |
7511 | if (group) { | |
7512 | delete_group_start(ofproto, ogm->version, &ogm->old_groups, group); | |
7395c052 NZ |
7513 | } |
7514 | } | |
7395c052 NZ |
7515 | } |
7516 | ||
7517 | static enum ofperr | |
2b0b0b80 JR |
7518 | ofproto_group_mod_start(struct ofproto *ofproto, struct ofproto_group_mod *ogm) |
7519 | OVS_REQUIRES(ofproto_mutex) | |
7395c052 | 7520 | { |
7395c052 NZ |
7521 | enum ofperr error; |
7522 | ||
2b0b0b80 JR |
7523 | ogm->new_group = NULL; |
7524 | group_collection_init(&ogm->old_groups); | |
7395c052 | 7525 | |
2b0b0b80 | 7526 | switch (ogm->gm.command) { |
7395c052 | 7527 | case OFPGC11_ADD: |
2b0b0b80 | 7528 | error = add_group_start(ofproto, ogm); |
3c35db62 | 7529 | break; |
7395c052 NZ |
7530 | |
7531 | case OFPGC11_MODIFY: | |
2b0b0b80 | 7532 | error = modify_group_start(ofproto, ogm); |
3c35db62 | 7533 | break; |
7395c052 | 7534 | |
88b87a36 | 7535 | case OFPGC11_ADD_OR_MOD: |
2b0b0b80 | 7536 | error = add_or_modify_group_start(ofproto, ogm); |
88b87a36 JS |
7537 | break; |
7538 | ||
7395c052 | 7539 | case OFPGC11_DELETE: |
2b0b0b80 | 7540 | delete_groups_start(ofproto, ogm); |
3c35db62 NR |
7541 | error = 0; |
7542 | break; | |
7395c052 | 7543 | |
fce4730c | 7544 | case OFPGC15_INSERT_BUCKET: |
2b0b0b80 | 7545 | error = modify_group_start(ofproto, ogm); |
3c35db62 | 7546 | break; |
fce4730c SH |
7547 | |
7548 | case OFPGC15_REMOVE_BUCKET: | |
2b0b0b80 | 7549 | error = modify_group_start(ofproto, ogm); |
3c35db62 | 7550 | break; |
fce4730c | 7551 | |
7395c052 | 7552 | default: |
2b0b0b80 | 7553 | if (ogm->gm.command > OFPGC11_DELETE) { |
d2873d53 | 7554 | VLOG_INFO_RL(&rl, "%s: Invalid group_mod command type %d", |
2b0b0b80 | 7555 | ofproto->name, ogm->gm.command); |
7395c052 | 7556 | } |
63eded98 | 7557 | error = OFPERR_OFPGMFC_BAD_COMMAND; |
2b0b0b80 | 7558 | break; |
7395c052 | 7559 | } |
2b0b0b80 JR |
7560 | return error; |
7561 | } | |
3c35db62 | 7562 | |
25070e04 JR |
7563 | static void |
7564 | ofproto_group_mod_revert(struct ofproto *ofproto, | |
7565 | struct ofproto_group_mod *ogm) | |
7566 | OVS_REQUIRES(ofproto_mutex) | |
7567 | { | |
7568 | struct ofgroup *new_group = ogm->new_group; | |
7569 | struct ofgroup *old_group; | |
7570 | ||
7571 | /* Restore replaced or deleted groups. */ | |
7572 | GROUP_COLLECTION_FOR_EACH (old_group, &ogm->old_groups) { | |
7573 | ofproto->n_groups[old_group->type]++; | |
7574 | if (new_group) { | |
7575 | ovs_assert(group_collection_n(&ogm->old_groups) == 1); | |
7576 | /* Transfer rules back. */ | |
7577 | rule_collection_move(&old_group->rules, &new_group->rules); | |
7578 | } else { | |
7579 | old_group->being_deleted = false; | |
7580 | /* Revert rule deletion. */ | |
7581 | delete_flows_revert__(ofproto, &old_group->rules); | |
7582 | } | |
7583 | /* Restore visibility. */ | |
7584 | versions_set_remove_version(&old_group->versions, | |
7585 | OVS_VERSION_NOT_REMOVED); | |
7586 | } | |
7587 | if (new_group) { | |
7588 | /* Remove the new group immediately. It was never visible to | |
7589 | * lookups. */ | |
7590 | cmap_remove(&ofproto->groups, &new_group->cmap_node, | |
7591 | hash_int(new_group->group_id, 0)); | |
7592 | ofproto->n_groups[new_group->type]--; | |
7593 | ofproto_group_unref(new_group); | |
7594 | } | |
7595 | } | |
7596 | ||
2b0b0b80 JR |
7597 | static void |
7598 | ofproto_group_mod_finish(struct ofproto *ofproto, | |
7599 | struct ofproto_group_mod *ogm, | |
7600 | const struct openflow_mod_requester *req) | |
7601 | OVS_REQUIRES(ofproto_mutex) | |
7602 | { | |
7603 | struct ofgroup *new_group = ogm->new_group; | |
7604 | struct ofgroup *old_group; | |
7605 | ||
ccb3bc08 JR |
7606 | if (new_group && group_collection_n(&ogm->old_groups) && |
7607 | ofproto->ofproto_class->group_modify) { | |
2b0b0b80 JR |
7608 | /* Modify a group. */ |
7609 | ovs_assert(group_collection_n(&ogm->old_groups) == 1); | |
2b0b0b80 JR |
7610 | |
7611 | /* XXX: OK to lose old group's stats? */ | |
7612 | ofproto->ofproto_class->group_modify(new_group); | |
5d08a275 | 7613 | } |
2b0b0b80 | 7614 | |
5d08a275 JR |
7615 | /* Delete old groups. */ |
7616 | GROUP_COLLECTION_FOR_EACH(old_group, &ogm->old_groups) { | |
7617 | delete_group_finish(ofproto, old_group); | |
2b0b0b80 | 7618 | } |
5d08a275 | 7619 | remove_groups_postponed(&ogm->old_groups); |
2b0b0b80 JR |
7620 | |
7621 | if (req) { | |
d31ac3b3 BP |
7622 | struct ofputil_requestforward rf; |
7623 | rf.xid = req->request->xid; | |
7624 | rf.reason = OFPRFR_GROUP_MOD; | |
7625 | rf.group_mod = &ogm->gm; | |
7626 | rf.new_buckets = new_group ? &new_group->buckets : NULL; | |
7627 | rf.group_existed = group_collection_n(&ogm->old_groups) > 0; | |
2b0b0b80 JR |
7628 | connmgr_send_requestforward(ofproto->connmgr, req->ofconn, &rf); |
7629 | } | |
7630 | } | |
7631 | ||
7632 | /* Delete all groups from 'ofproto'. | |
7633 | * | |
7634 | * This is intended for use within an ofproto provider's 'destruct' | |
7635 | * function. */ | |
d3b84833 BP |
7636 | static void |
7637 | ofproto_group_delete_all__(struct ofproto *ofproto) | |
7638 | OVS_REQUIRES(ofproto_mutex) | |
2b0b0b80 JR |
7639 | { |
7640 | struct ofproto_group_mod ogm; | |
2b0b0b80 JR |
7641 | ogm.gm.command = OFPGC11_DELETE; |
7642 | ogm.gm.group_id = OFPG_ALL; | |
5d08a275 | 7643 | ogm.version = ofproto->tables_version + 1; |
d3b84833 | 7644 | |
2b0b0b80 | 7645 | ofproto_group_mod_start(ofproto, &ogm); |
5d08a275 | 7646 | ofproto_bump_tables_version(ofproto); |
2b0b0b80 | 7647 | ofproto_group_mod_finish(ofproto, &ogm, NULL); |
d3b84833 BP |
7648 | } |
7649 | ||
7650 | /* Delete all groups from 'ofproto'. | |
7651 | * | |
7652 | * This is intended for use within an ofproto provider's 'destruct' | |
7653 | * function. */ | |
7654 | void | |
7655 | ofproto_group_delete_all(struct ofproto *ofproto) | |
7656 | OVS_EXCLUDED(ofproto_mutex) | |
7657 | { | |
7658 | ovs_mutex_lock(&ofproto_mutex); | |
7659 | ofproto_group_delete_all__(ofproto); | |
2b0b0b80 JR |
7660 | ovs_mutex_unlock(&ofproto_mutex); |
7661 | } | |
7662 | ||
7663 | static enum ofperr | |
7664 | handle_group_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
7665 | OVS_EXCLUDED(ofproto_mutex) | |
7666 | { | |
7667 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
7668 | struct ofproto_group_mod ogm; | |
7669 | enum ofperr error; | |
7670 | ||
7671 | error = reject_slave_controller(ofconn); | |
7672 | if (error) { | |
7673 | return error; | |
7674 | } | |
7675 | ||
7676 | error = ofputil_decode_group_mod(oh, &ogm.gm); | |
7677 | if (error) { | |
7678 | return error; | |
3c35db62 | 7679 | } |
2b0b0b80 JR |
7680 | |
7681 | ovs_mutex_lock(&ofproto_mutex); | |
5d08a275 | 7682 | ogm.version = ofproto->tables_version + 1; |
2b0b0b80 JR |
7683 | error = ofproto_group_mod_start(ofproto, &ogm); |
7684 | if (!error) { | |
7685 | struct openflow_mod_requester req = { ofconn, oh }; | |
5d08a275 JR |
7686 | |
7687 | ofproto_bump_tables_version(ofproto); | |
2b0b0b80 | 7688 | ofproto_group_mod_finish(ofproto, &ogm, &req); |
2c7ee524 | 7689 | ofmonitor_flush(ofproto->connmgr); |
2b0b0b80 | 7690 | } |
2b0b0b80 JR |
7691 | ovs_mutex_unlock(&ofproto_mutex); |
7692 | ||
75868d0e | 7693 | ofputil_uninit_group_mod(&ogm.gm); |
63eded98 | 7694 | |
3c35db62 | 7695 | return error; |
7395c052 NZ |
7696 | } |
7697 | ||
3c1bb396 BP |
7698 | enum ofputil_table_miss |
7699 | ofproto_table_get_miss_config(const struct ofproto *ofproto, uint8_t table_id) | |
6d328fa2 | 7700 | { |
82c22d34 BP |
7701 | enum ofputil_table_miss miss; |
7702 | ||
7703 | atomic_read_relaxed(&ofproto->tables[table_id].miss_config, &miss); | |
7704 | return miss; | |
7705 | } | |
7706 | ||
7707 | static void | |
7708 | table_mod__(struct oftable *oftable, | |
de7d3c07 | 7709 | const struct ofputil_table_mod *tm) |
82c22d34 | 7710 | { |
de7d3c07 | 7711 | if (tm->miss == OFPUTIL_TABLE_MISS_DEFAULT) { |
82c22d34 BP |
7712 | /* This is how an OFPT_TABLE_MOD decodes if it doesn't specify any |
7713 | * table-miss configuration (because the protocol used doesn't have | |
7714 | * such a concept), so there's nothing to do. */ | |
7715 | } else { | |
de7d3c07 | 7716 | atomic_store_relaxed(&oftable->miss_config, tm->miss); |
82c22d34 BP |
7717 | } |
7718 | ||
7719 | unsigned int new_eviction = oftable->eviction; | |
de7d3c07 | 7720 | if (tm->eviction == OFPUTIL_TABLE_EVICTION_ON) { |
82c22d34 | 7721 | new_eviction |= EVICTION_OPENFLOW; |
de7d3c07 | 7722 | } else if (tm->eviction == OFPUTIL_TABLE_EVICTION_OFF) { |
82c22d34 BP |
7723 | new_eviction &= ~EVICTION_OPENFLOW; |
7724 | } | |
afcea9ea | 7725 | |
82c22d34 BP |
7726 | if (new_eviction != oftable->eviction) { |
7727 | ovs_mutex_lock(&ofproto_mutex); | |
7728 | oftable_configure_eviction(oftable, new_eviction, | |
7729 | oftable->eviction_fields, | |
7730 | oftable->n_eviction_fields); | |
7731 | ovs_mutex_unlock(&ofproto_mutex); | |
7732 | } | |
de7d3c07 SJ |
7733 | |
7734 | if (tm->vacancy != OFPUTIL_TABLE_VACANCY_DEFAULT) { | |
7735 | ovs_mutex_lock(&ofproto_mutex); | |
de7d3c07 SJ |
7736 | oftable->vacancy_down = tm->table_vacancy.vacancy_down; |
7737 | oftable->vacancy_up = tm->table_vacancy.vacancy_up; | |
6c6eedc5 SJ |
7738 | if (tm->vacancy == OFPUTIL_TABLE_VACANCY_OFF) { |
7739 | oftable->vacancy_event = 0; | |
7740 | } else if (!oftable->vacancy_event) { | |
7741 | uint8_t vacancy = oftable_vacancy(oftable); | |
7742 | oftable->vacancy_event = (vacancy < oftable->vacancy_up | |
7743 | ? OFPTR_VACANCY_UP | |
7744 | : OFPTR_VACANCY_DOWN); | |
7745 | } | |
de7d3c07 SJ |
7746 | ovs_mutex_unlock(&ofproto_mutex); |
7747 | } | |
6d328fa2 SH |
7748 | } |
7749 | ||
67761761 SH |
7750 | static enum ofperr |
7751 | table_mod(struct ofproto *ofproto, const struct ofputil_table_mod *tm) | |
7752 | { | |
3c1bb396 | 7753 | if (!check_table_id(ofproto, tm->table_id)) { |
67761761 | 7754 | return OFPERR_OFPTMFC_BAD_TABLE; |
82c22d34 BP |
7755 | } |
7756 | ||
7757 | /* Don't allow the eviction flags to be changed (except to the only fixed | |
7758 | * value that OVS supports). OF1.4 says this is normal: "The | |
7759 | * OFPTMPT_EVICTION property usually cannot be modified using a | |
7760 | * OFP_TABLE_MOD request, because the eviction mechanism is switch | |
7761 | * defined". */ | |
7762 | if (tm->eviction_flags != UINT32_MAX | |
7763 | && tm->eviction_flags != OFPROTO_EVICTION_FLAGS) { | |
7764 | return OFPERR_OFPTMFC_BAD_CONFIG; | |
7765 | } | |
7766 | ||
7767 | if (tm->table_id == OFPTT_ALL) { | |
7768 | struct oftable *oftable; | |
7769 | OFPROTO_FOR_EACH_TABLE (oftable, ofproto) { | |
7770 | if (!(oftable->flags & (OFTABLE_HIDDEN | OFTABLE_READONLY))) { | |
de7d3c07 | 7771 | table_mod__(oftable, tm); |
3c1bb396 | 7772 | } |
3c1bb396 | 7773 | } |
82c22d34 BP |
7774 | } else { |
7775 | struct oftable *oftable = &ofproto->tables[tm->table_id]; | |
7776 | if (oftable->flags & OFTABLE_READONLY) { | |
7777 | return OFPERR_OFPTMFC_EPERM; | |
7778 | } | |
de7d3c07 | 7779 | table_mod__(oftable, tm); |
67761761 | 7780 | } |
82c22d34 | 7781 | |
67761761 SH |
7782 | return 0; |
7783 | } | |
7784 | ||
918f2b82 AZ |
7785 | static enum ofperr |
7786 | handle_table_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
7787 | { | |
67761761 | 7788 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
918f2b82 AZ |
7789 | struct ofputil_table_mod tm; |
7790 | enum ofperr error; | |
7791 | ||
7792 | error = reject_slave_controller(ofconn); | |
7793 | if (error) { | |
7794 | return error; | |
7795 | } | |
7796 | ||
7797 | error = ofputil_decode_table_mod(oh, &tm); | |
7798 | if (error) { | |
7799 | return error; | |
7800 | } | |
7801 | ||
67761761 | 7802 | return table_mod(ofproto, &tm); |
918f2b82 AZ |
7803 | } |
7804 | ||
5bacd5cd JR |
7805 | /* Free resources that may be allocated by ofproto_flow_mod_init(). */ |
7806 | void | |
7807 | ofproto_flow_mod_uninit(struct ofproto_flow_mod *ofm) | |
7808 | { | |
7809 | if (ofm->temp_rule) { | |
7810 | ofproto_rule_unref(ofm->temp_rule); | |
7811 | ofm->temp_rule = NULL; | |
7812 | } | |
7813 | if (ofm->criteria.version != OVS_VERSION_NOT_REMOVED) { | |
7814 | rule_criteria_destroy(&ofm->criteria); | |
7815 | } | |
7816 | if (ofm->conjs) { | |
7817 | free(ofm->conjs); | |
7818 | ofm->conjs = NULL; | |
7819 | ofm->n_conjs = 0; | |
7820 | } | |
7821 | } | |
7822 | ||
6399df6a BP |
7823 | /* Initializes 'ofm' with 'ofproto', 'fm', and 'rule'. 'rule' may be null, but |
7824 | * if it is nonnull then the caller must own a reference to it, which on | |
7825 | * success is transferred to 'ofm' and on failure is unreffed. */ | |
777af88d | 7826 | static enum ofperr |
5bacd5cd | 7827 | ofproto_flow_mod_init(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
2c7ee524 | 7828 | const struct ofputil_flow_mod *fm, struct rule *rule) |
5bacd5cd | 7829 | OVS_EXCLUDED(ofproto_mutex) |
777af88d | 7830 | { |
5bacd5cd JR |
7831 | enum ofperr error; |
7832 | ||
7833 | /* Forward flow mod fields we need later. */ | |
7834 | ofm->command = fm->command; | |
5bacd5cd JR |
7835 | ofm->modify_cookie = fm->modify_cookie; |
7836 | ||
7837 | ofm->modify_may_add_flow = (fm->new_cookie != OVS_BE64_MAX | |
7838 | && fm->cookie_mask == htonll(0)); | |
8b6987d7 JR |
7839 | /* Old flags must be kept when modifying a flow, but we still must |
7840 | * honor the reset counts flag if present in the flow mod. */ | |
7841 | ofm->modify_keep_counts = !(fm->flags & OFPUTIL_FF_RESET_COUNTS); | |
5bacd5cd JR |
7842 | |
7843 | /* Initialize state needed by ofproto_flow_mod_uninit(). */ | |
2c7ee524 | 7844 | ofm->temp_rule = rule; |
5bacd5cd JR |
7845 | ofm->criteria.version = OVS_VERSION_NOT_REMOVED; |
7846 | ofm->conjs = NULL; | |
7847 | ofm->n_conjs = 0; | |
7848 | ||
c184807c JR |
7849 | bool check_buffer_id = false; |
7850 | ||
5bacd5cd JR |
7851 | switch (ofm->command) { |
7852 | case OFPFC_ADD: | |
c184807c | 7853 | check_buffer_id = true; |
5bacd5cd JR |
7854 | error = add_flow_init(ofproto, ofm, fm); |
7855 | break; | |
7856 | case OFPFC_MODIFY: | |
c184807c | 7857 | check_buffer_id = true; |
5bacd5cd JR |
7858 | error = modify_flows_init_loose(ofproto, ofm, fm); |
7859 | break; | |
7860 | case OFPFC_MODIFY_STRICT: | |
c184807c | 7861 | check_buffer_id = true; |
5bacd5cd JR |
7862 | error = modify_flow_init_strict(ofproto, ofm, fm); |
7863 | break; | |
7864 | case OFPFC_DELETE: | |
7865 | error = delete_flows_init_loose(ofproto, ofm, fm); | |
7866 | break; | |
7867 | case OFPFC_DELETE_STRICT: | |
7868 | error = delete_flows_init_strict(ofproto, ofm, fm); | |
7869 | break; | |
7870 | default: | |
7871 | error = OFPERR_OFPFMFC_BAD_COMMAND; | |
7872 | break; | |
7873 | } | |
c184807c JR |
7874 | if (!error && check_buffer_id && fm->buffer_id != UINT32_MAX) { |
7875 | error = OFPERR_OFPBRC_BUFFER_UNKNOWN; | |
7876 | } | |
7877 | ||
cc099268 | 7878 | if (error) { |
5bacd5cd | 7879 | ofproto_flow_mod_uninit(ofm); |
cc099268 | 7880 | } |
5bacd5cd JR |
7881 | return error; |
7882 | } | |
cc099268 | 7883 | |
5bacd5cd JR |
7884 | static enum ofperr |
7885 | ofproto_flow_mod_start(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) | |
7886 | OVS_REQUIRES(ofproto_mutex) | |
7887 | { | |
7888 | enum ofperr error; | |
81dee635 | 7889 | |
5bacd5cd JR |
7890 | rule_collection_init(&ofm->old_rules); |
7891 | rule_collection_init(&ofm->new_rules); | |
81dee635 | 7892 | |
5a27991d | 7893 | switch (ofm->command) { |
1f42be1c | 7894 | case OFPFC_ADD: |
5bacd5cd JR |
7895 | error = add_flow_start(ofproto, ofm); |
7896 | break; | |
1f42be1c | 7897 | case OFPFC_MODIFY: |
5bacd5cd JR |
7898 | error = modify_flows_start_loose(ofproto, ofm); |
7899 | break; | |
1f42be1c | 7900 | case OFPFC_MODIFY_STRICT: |
5bacd5cd JR |
7901 | error = modify_flow_start_strict(ofproto, ofm); |
7902 | break; | |
1f42be1c | 7903 | case OFPFC_DELETE: |
5bacd5cd JR |
7904 | error = delete_flows_start_loose(ofproto, ofm); |
7905 | break; | |
1f42be1c | 7906 | case OFPFC_DELETE_STRICT: |
5bacd5cd JR |
7907 | error = delete_flow_start_strict(ofproto, ofm); |
7908 | break; | |
7909 | default: | |
7910 | OVS_NOT_REACHED(); | |
1f42be1c | 7911 | } |
5bacd5cd JR |
7912 | /* Release resources not needed after start. */ |
7913 | ofproto_flow_mod_uninit(ofm); | |
1f42be1c | 7914 | |
5bacd5cd JR |
7915 | if (error) { |
7916 | rule_collection_destroy(&ofm->old_rules); | |
7917 | rule_collection_destroy(&ofm->new_rules); | |
7918 | } | |
7919 | return error; | |
1f42be1c JR |
7920 | } |
7921 | ||
7922 | static void | |
8be00367 | 7923 | ofproto_flow_mod_revert(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
1f42be1c JR |
7924 | OVS_REQUIRES(ofproto_mutex) |
7925 | { | |
5a27991d | 7926 | switch (ofm->command) { |
1f42be1c | 7927 | case OFPFC_ADD: |
8be00367 | 7928 | add_flow_revert(ofproto, ofm); |
1f42be1c JR |
7929 | break; |
7930 | ||
7931 | case OFPFC_MODIFY: | |
7932 | case OFPFC_MODIFY_STRICT: | |
8be00367 | 7933 | modify_flows_revert(ofproto, ofm); |
1f42be1c JR |
7934 | break; |
7935 | ||
7936 | case OFPFC_DELETE: | |
7937 | case OFPFC_DELETE_STRICT: | |
8be00367 | 7938 | delete_flows_revert(ofproto, ofm); |
1f42be1c JR |
7939 | break; |
7940 | ||
7941 | default: | |
7942 | break; | |
7943 | } | |
2c7ee524 | 7944 | |
5bacd5cd JR |
7945 | rule_collection_destroy(&ofm->old_rules); |
7946 | rule_collection_destroy(&ofm->new_rules); | |
1f42be1c JR |
7947 | } |
7948 | ||
7949 | static void | |
2c7ee524 | 7950 | ofproto_flow_mod_finish(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
0a0d9385 | 7951 | const struct openflow_mod_requester *req) |
1f42be1c JR |
7952 | OVS_REQUIRES(ofproto_mutex) |
7953 | { | |
5a27991d | 7954 | switch (ofm->command) { |
1f42be1c | 7955 | case OFPFC_ADD: |
8be00367 | 7956 | add_flow_finish(ofproto, ofm, req); |
1f42be1c JR |
7957 | break; |
7958 | ||
7959 | case OFPFC_MODIFY: | |
7960 | case OFPFC_MODIFY_STRICT: | |
8be00367 | 7961 | modify_flows_finish(ofproto, ofm, req); |
1f42be1c JR |
7962 | break; |
7963 | ||
7964 | case OFPFC_DELETE: | |
7965 | case OFPFC_DELETE_STRICT: | |
8be00367 | 7966 | delete_flows_finish(ofproto, ofm, req); |
1f42be1c JR |
7967 | break; |
7968 | ||
7969 | default: | |
7970 | break; | |
7971 | } | |
b0d38b2f | 7972 | |
5bacd5cd JR |
7973 | rule_collection_destroy(&ofm->old_rules); |
7974 | rule_collection_destroy(&ofm->new_rules); | |
7975 | ||
b0d38b2f | 7976 | if (req) { |
5a27991d | 7977 | ofconn_report_flow_mod(req->ofconn, ofm->command); |
b0d38b2f | 7978 | } |
1f42be1c JR |
7979 | } |
7980 | ||
39c94593 JR |
7981 | /* Commit phases (all while locking ofproto_mutex): |
7982 | * | |
7983 | * 1. Begin: Gather resources and make changes visible in the next version. | |
7984 | * - Mark affected rules for removal in the next version. | |
7985 | * - Create new replacement rules, make visible in the next | |
7986 | * version. | |
7987 | * - Do not send any events or notifications. | |
7988 | * | |
7989 | * 2. Revert: Fail if any errors are found. After this point no errors are | |
7990 | * possible. No visible changes were made, so rollback is minimal (remove | |
7991 | * added invisible rules, restore visibility of rules marked for removal). | |
7992 | * | |
1c38055d JR |
7993 | * 3. Finish: Make the changes visible for lookups. Insert replacement rules to |
7994 | * the ofproto provider. Remove replaced and deleted rules from ofproto data | |
7995 | * structures, and Schedule postponed removal of deleted rules from the | |
7996 | * classifier. Send notifications, buffered packets, etc. | |
39c94593 | 7997 | */ |
1f42be1c JR |
7998 | static enum ofperr |
7999 | do_bundle_commit(struct ofconn *ofconn, uint32_t id, uint16_t flags) | |
8000 | { | |
8001 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
44e0c35d | 8002 | ovs_version_t version = ofproto->tables_version + 1; |
1f42be1c JR |
8003 | struct ofp_bundle *bundle; |
8004 | struct ofp_bundle_entry *be; | |
777af88d | 8005 | enum ofperr error; |
1f42be1c JR |
8006 | |
8007 | bundle = ofconn_get_bundle(ofconn, id); | |
8008 | ||
8009 | if (!bundle) { | |
8010 | return OFPERR_OFPBFC_BAD_ID; | |
8011 | } | |
8012 | if (bundle->flags != flags) { | |
8013 | error = OFPERR_OFPBFC_BAD_FLAGS; | |
8014 | } else { | |
1c38055d JR |
8015 | bool prev_is_port_mod = false; |
8016 | ||
1f42be1c JR |
8017 | error = 0; |
8018 | ovs_mutex_lock(&ofproto_mutex); | |
39c94593 JR |
8019 | |
8020 | /* 1. Begin. */ | |
1f42be1c JR |
8021 | LIST_FOR_EACH (be, node, &bundle->msg_list) { |
8022 | if (be->type == OFPTYPE_PORT_MOD) { | |
1c38055d JR |
8023 | /* Our port mods are not atomic. */ |
8024 | if (flags & OFPBF_ATOMIC) { | |
8025 | error = OFPERR_OFPBFC_MSG_FAILED; | |
8026 | } else { | |
8027 | prev_is_port_mod = true; | |
8be00367 | 8028 | error = port_mod_start(ofconn, &be->opm.pm, &be->opm.port); |
1c38055d | 8029 | } |
25070e04 JR |
8030 | } else { |
8031 | /* Flow & group mods between port mods are applied as a single | |
8032 | * version, but the versions are published only after we know | |
8033 | * the commit is successful. */ | |
1c38055d | 8034 | if (prev_is_port_mod) { |
25070e04 | 8035 | prev_is_port_mod = false; |
8be00367 | 8036 | ++version; |
1c38055d | 8037 | } |
25070e04 JR |
8038 | if (be->type == OFPTYPE_FLOW_MOD) { |
8039 | /* Store the version in which the changes should take | |
8040 | * effect. */ | |
8041 | be->ofm.version = version; | |
8042 | error = ofproto_flow_mod_start(ofproto, &be->ofm); | |
8043 | } else if (be->type == OFPTYPE_GROUP_MOD) { | |
8044 | /* Store the version in which the changes should take | |
8045 | * effect. */ | |
8046 | be->ogm.version = version; | |
8047 | error = ofproto_group_mod_start(ofproto, &be->ogm); | |
6dd3c787 JR |
8048 | } else if (be->type == OFPTYPE_PACKET_OUT) { |
8049 | be->opo.version = version; | |
8050 | error = ofproto_packet_out_start(ofproto, &be->opo); | |
25070e04 JR |
8051 | } else { |
8052 | OVS_NOT_REACHED(); | |
8053 | } | |
1f42be1c JR |
8054 | } |
8055 | if (error) { | |
8056 | break; | |
8057 | } | |
8058 | } | |
1c38055d | 8059 | |
1f42be1c JR |
8060 | if (error) { |
8061 | /* Send error referring to the original message. */ | |
8062 | if (error) { | |
52c57cbb | 8063 | ofconn_send_error(ofconn, be->msg, error); |
1f42be1c JR |
8064 | error = OFPERR_OFPBFC_MSG_FAILED; |
8065 | } | |
8066 | ||
39c94593 | 8067 | /* 2. Revert. Undo all the changes made above. */ |
1f42be1c JR |
8068 | LIST_FOR_EACH_REVERSE_CONTINUE(be, node, &bundle->msg_list) { |
8069 | if (be->type == OFPTYPE_FLOW_MOD) { | |
8be00367 | 8070 | ofproto_flow_mod_revert(ofproto, &be->ofm); |
25070e04 JR |
8071 | } else if (be->type == OFPTYPE_GROUP_MOD) { |
8072 | ofproto_group_mod_revert(ofproto, &be->ogm); | |
6dd3c787 JR |
8073 | } else if (be->type == OFPTYPE_PACKET_OUT) { |
8074 | ofproto_packet_out_revert(ofproto, &be->opo); | |
1f42be1c | 8075 | } |
1c38055d | 8076 | /* Nothing needs to be reverted for a port mod. */ |
1f42be1c JR |
8077 | } |
8078 | } else { | |
39c94593 | 8079 | /* 4. Finish. */ |
1f42be1c | 8080 | LIST_FOR_EACH (be, node, &bundle->msg_list) { |
25070e04 | 8081 | if (be->type == OFPTYPE_PORT_MOD) { |
1c38055d JR |
8082 | /* Perform the actual port mod. This is not atomic, i.e., |
8083 | * the effects will be immediately seen by upcall | |
8084 | * processing regardless of the lookup version. It should | |
8085 | * be noted that port configuration changes can originate | |
8086 | * also from OVSDB changes asynchronously to all upcall | |
8087 | * processing. */ | |
8be00367 | 8088 | port_mod_finish(ofconn, &be->opm.pm, be->opm.port); |
25070e04 | 8089 | } else { |
6dd3c787 JR |
8090 | version = |
8091 | (be->type == OFPTYPE_FLOW_MOD) ? be->ofm.version : | |
8092 | (be->type == OFPTYPE_GROUP_MOD) ? be->ogm.version : | |
8093 | (be->type == OFPTYPE_PACKET_OUT) ? be->opo.version : | |
8094 | version; | |
8095 | ||
8096 | /* Bump the lookup version to the one of the current | |
8097 | * message. This makes all the changes in the bundle at | |
8098 | * this version visible to lookups at once. */ | |
8099 | if (ofproto->tables_version < version) { | |
8100 | ofproto->tables_version = version; | |
8101 | ofproto->ofproto_class->set_tables_version( | |
8102 | ofproto, ofproto->tables_version); | |
8103 | } | |
8104 | ||
52c57cbb | 8105 | struct openflow_mod_requester req = { ofconn, be->msg }; |
25070e04 | 8106 | |
6dd3c787 | 8107 | if (be->type == OFPTYPE_FLOW_MOD) { |
25070e04 JR |
8108 | ofproto_flow_mod_finish(ofproto, &be->ofm, &req); |
8109 | } else if (be->type == OFPTYPE_GROUP_MOD) { | |
25070e04 | 8110 | ofproto_group_mod_finish(ofproto, &be->ogm, &req); |
6dd3c787 JR |
8111 | } else if (be->type == OFPTYPE_PACKET_OUT) { |
8112 | ofproto_packet_out_finish(ofproto, &be->opo); | |
25070e04 | 8113 | } |
1f42be1c JR |
8114 | } |
8115 | } | |
8116 | } | |
1c38055d | 8117 | |
1f42be1c JR |
8118 | ofmonitor_flush(ofproto->connmgr); |
8119 | ovs_mutex_unlock(&ofproto_mutex); | |
1f42be1c JR |
8120 | } |
8121 | ||
8122 | /* The bundle is discarded regardless the outcome. */ | |
0c78eebe | 8123 | ofp_bundle_remove__(ofconn, bundle); |
1f42be1c JR |
8124 | return error; |
8125 | } | |
8126 | ||
8127 | static enum ofperr | |
8128 | handle_bundle_control(struct ofconn *ofconn, const struct ofp_header *oh) | |
8129 | { | |
777af88d | 8130 | struct ofputil_bundle_ctrl_msg bctrl; |
777af88d | 8131 | struct ofputil_bundle_ctrl_msg reply; |
1f42be1c JR |
8132 | struct ofpbuf *buf; |
8133 | enum ofperr error; | |
777af88d | 8134 | |
ba9d374a JR |
8135 | error = reject_slave_controller(ofconn); |
8136 | if (error) { | |
8137 | return error; | |
8138 | } | |
8139 | ||
777af88d AC |
8140 | error = ofputil_decode_bundle_ctrl(oh, &bctrl); |
8141 | if (error) { | |
8142 | return error; | |
8143 | } | |
8144 | reply.flags = 0; | |
8145 | reply.bundle_id = bctrl.bundle_id; | |
8146 | ||
8147 | switch (bctrl.type) { | |
51bb26fa JR |
8148 | case OFPBCT_OPEN_REQUEST: |
8149 | error = ofp_bundle_open(ofconn, bctrl.bundle_id, bctrl.flags, oh); | |
777af88d AC |
8150 | reply.type = OFPBCT_OPEN_REPLY; |
8151 | break; | |
8152 | case OFPBCT_CLOSE_REQUEST: | |
8153 | error = ofp_bundle_close(ofconn, bctrl.bundle_id, bctrl.flags); | |
ea53e3a8 | 8154 | reply.type = OFPBCT_CLOSE_REPLY; |
777af88d AC |
8155 | break; |
8156 | case OFPBCT_COMMIT_REQUEST: | |
1f42be1c | 8157 | error = do_bundle_commit(ofconn, bctrl.bundle_id, bctrl.flags); |
777af88d AC |
8158 | reply.type = OFPBCT_COMMIT_REPLY; |
8159 | break; | |
8160 | case OFPBCT_DISCARD_REQUEST: | |
8161 | error = ofp_bundle_discard(ofconn, bctrl.bundle_id); | |
8162 | reply.type = OFPBCT_DISCARD_REPLY; | |
8163 | break; | |
8164 | ||
8165 | case OFPBCT_OPEN_REPLY: | |
8166 | case OFPBCT_CLOSE_REPLY: | |
8167 | case OFPBCT_COMMIT_REPLY: | |
8168 | case OFPBCT_DISCARD_REPLY: | |
8169 | return OFPERR_OFPBFC_BAD_TYPE; | |
8170 | break; | |
8171 | } | |
8172 | ||
8173 | if (!error) { | |
8174 | buf = ofputil_encode_bundle_ctrl_reply(oh, &reply); | |
8175 | ofconn_send_reply(ofconn, buf); | |
8176 | } | |
8177 | return error; | |
8178 | } | |
8179 | ||
777af88d AC |
8180 | static enum ofperr |
8181 | handle_bundle_add(struct ofconn *ofconn, const struct ofp_header *oh) | |
5bacd5cd | 8182 | OVS_EXCLUDED(ofproto_mutex) |
777af88d | 8183 | { |
7ac27a04 | 8184 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
777af88d AC |
8185 | enum ofperr error; |
8186 | struct ofputil_bundle_add_msg badd; | |
7ac27a04 | 8187 | enum ofptype type; |
777af88d | 8188 | |
ba9d374a JR |
8189 | error = reject_slave_controller(ofconn); |
8190 | if (error) { | |
8191 | return error; | |
8192 | } | |
8193 | ||
7ac27a04 | 8194 | error = ofputil_decode_bundle_add(oh, &badd, &type); |
777af88d AC |
8195 | if (error) { |
8196 | return error; | |
8197 | } | |
8198 | ||
d0485f48 AT |
8199 | /* Allocate bundle entry and decode the embedded message. */ |
8200 | struct ofp_bundle_entry *bmsg = xmalloc(sizeof *bmsg); | |
7ac27a04 | 8201 | |
6dd3c787 JR |
8202 | struct ofpbuf ofpacts; |
8203 | uint64_t ofpacts_stub[1024 / 8]; | |
8204 | ofpbuf_use_stub(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); | |
8205 | ||
7ac27a04 | 8206 | if (type == OFPTYPE_PORT_MOD) { |
8be00367 | 8207 | error = ofputil_decode_port_mod(badd.msg, &bmsg->opm.pm, false); |
7ac27a04 | 8208 | } else if (type == OFPTYPE_FLOW_MOD) { |
5bacd5cd | 8209 | struct ofputil_flow_mod fm; |
7ac27a04 | 8210 | |
5bacd5cd | 8211 | error = ofputil_decode_flow_mod(&fm, badd.msg, |
7ac27a04 | 8212 | ofconn_get_protocol(ofconn), |
8d8ab6c2 | 8213 | ofproto_get_tun_tab(ofproto), |
04f48a68 | 8214 | &ofproto->vl_mff_map, &ofpacts, |
7ac27a04 JR |
8215 | u16_to_ofp(ofproto->max_ports), |
8216 | ofproto->n_tables); | |
5bacd5cd | 8217 | if (!error) { |
2c7ee524 | 8218 | error = ofproto_flow_mod_init(ofproto, &bmsg->ofm, &fm, NULL); |
6a6b7060 | 8219 | minimatch_destroy(&fm.match); |
5bacd5cd | 8220 | } |
25070e04 JR |
8221 | } else if (type == OFPTYPE_GROUP_MOD) { |
8222 | error = ofputil_decode_group_mod(badd.msg, &bmsg->ogm.gm); | |
6dd3c787 JR |
8223 | } else if (type == OFPTYPE_PACKET_OUT) { |
8224 | struct ofputil_packet_out po; | |
8225 | ||
8226 | COVERAGE_INC(ofproto_packet_out); | |
8227 | ||
8228 | /* Decode message. */ | |
89d7927b YHW |
8229 | error = ofputil_decode_packet_out(&po, badd.msg, |
8230 | ofproto_get_tun_tab(ofproto), | |
8231 | &ofpacts); | |
6dd3c787 JR |
8232 | if (!error) { |
8233 | po.ofpacts = ofpbuf_steal_data(&ofpacts); /* Move to heap. */ | |
8234 | error = ofproto_packet_out_init(ofproto, ofconn, &bmsg->opo, &po); | |
8235 | } | |
7ac27a04 JR |
8236 | } else { |
8237 | OVS_NOT_REACHED(); | |
8238 | } | |
6dd3c787 | 8239 | ofpbuf_uninit(&ofpacts); |
d0485f48 AT |
8240 | if (error) { |
8241 | free(bmsg); | |
8242 | return error; | |
7ac27a04 JR |
8243 | } |
8244 | ||
d0485f48 AT |
8245 | /* Now that the embedded message has been successfully decoded, finish up |
8246 | * initializing the bundle entry. */ | |
8247 | bmsg->type = type; | |
8248 | bmsg->msg = xmemdup(oh, ntohs(oh->length)); | |
8249 | ||
8250 | /* Add bundle entry to bundle. */ | |
8251 | error = ofp_bundle_add_message(ofconn, badd.bundle_id, badd.flags, | |
8252 | bmsg, oh); | |
7ac27a04 JR |
8253 | if (error) { |
8254 | ofp_bundle_entry_free(bmsg); | |
8255 | } | |
7ac27a04 | 8256 | return error; |
777af88d AC |
8257 | } |
8258 | ||
6159c531 | 8259 | static enum ofperr |
4e548ad9 | 8260 | handle_tlv_table_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
6159c531 | 8261 | { |
8d8ab6c2 JG |
8262 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
8263 | struct tun_table *old_tab, *new_tab; | |
4e548ad9 | 8264 | struct ofputil_tlv_table_mod ttm; |
6159c531 JG |
8265 | enum ofperr error; |
8266 | ||
8267 | error = reject_slave_controller(ofconn); | |
8268 | if (error) { | |
8269 | return error; | |
8270 | } | |
8271 | ||
4e548ad9 | 8272 | error = ofputil_decode_tlv_table_mod(oh, &ttm); |
6159c531 JG |
8273 | if (error) { |
8274 | return error; | |
8275 | } | |
8276 | ||
8d8ab6c2 JG |
8277 | old_tab = ovsrcu_get_protected(struct tun_table *, &ofproto->metadata_tab); |
8278 | error = tun_metadata_table_mod(&ttm, old_tab, &new_tab); | |
8279 | if (!error) { | |
04f48a68 YHW |
8280 | ovs_mutex_lock(&ofproto->vl_mff_map.mutex); |
8281 | error = mf_vl_mff_map_mod_from_tun_metadata(&ofproto->vl_mff_map, | |
8282 | &ttm); | |
8283 | ovs_mutex_unlock(&ofproto->vl_mff_map.mutex); | |
5c7c16d8 YHW |
8284 | if (!error) { |
8285 | ovsrcu_set(&ofproto->metadata_tab, new_tab); | |
8286 | tun_metadata_postpone_free(old_tab); | |
bc36c3a8 YHW |
8287 | } else { |
8288 | tun_metadata_free(new_tab); | |
5c7c16d8 | 8289 | } |
8d8ab6c2 | 8290 | } |
9558d2a5 | 8291 | |
4e548ad9 | 8292 | ofputil_uninit_tlv_table(&ttm.mappings); |
9558d2a5 | 8293 | return error; |
6159c531 JG |
8294 | } |
8295 | ||
8296 | static enum ofperr | |
4e548ad9 | 8297 | handle_tlv_table_request(struct ofconn *ofconn, const struct ofp_header *oh) |
6159c531 | 8298 | { |
8d8ab6c2 | 8299 | const struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
4e548ad9 | 8300 | struct ofputil_tlv_table_reply ttr; |
9558d2a5 JG |
8301 | struct ofpbuf *b; |
8302 | ||
8d8ab6c2 JG |
8303 | tun_metadata_table_request(ofproto_get_tun_tab(ofproto), &ttr); |
8304 | ||
4e548ad9 ML |
8305 | b = ofputil_encode_tlv_table_reply(oh, &ttr); |
8306 | ofputil_uninit_tlv_table(&ttr.mappings); | |
9558d2a5 JG |
8307 | |
8308 | ofconn_send_reply(ofconn, b); | |
8309 | return 0; | |
6159c531 JG |
8310 | } |
8311 | ||
fd4b7a0e BP |
8312 | /* Processes the single-part OpenFlow message 'oh' that was received on |
8313 | * 'ofconn'. Returns an ofperr that, if nonzero, the caller should send back | |
8314 | * to the controller. */ | |
90bf1e07 | 8315 | static enum ofperr |
fd4b7a0e BP |
8316 | handle_single_part_openflow(struct ofconn *ofconn, const struct ofp_header *oh, |
8317 | enum ofptype type) | |
15aaf599 | 8318 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 8319 | { |
982697a4 | 8320 | switch (type) { |
d1e2cf21 | 8321 | /* OpenFlow requests. */ |
982697a4 | 8322 | case OFPTYPE_ECHO_REQUEST: |
d1e2cf21 | 8323 | return handle_echo_request(ofconn, oh); |
064af421 | 8324 | |
982697a4 | 8325 | case OFPTYPE_FEATURES_REQUEST: |
d1e2cf21 | 8326 | return handle_features_request(ofconn, oh); |
064af421 | 8327 | |
982697a4 | 8328 | case OFPTYPE_GET_CONFIG_REQUEST: |
d1e2cf21 | 8329 | return handle_get_config_request(ofconn, oh); |
064af421 | 8330 | |
982697a4 BP |
8331 | case OFPTYPE_SET_CONFIG: |
8332 | return handle_set_config(ofconn, oh); | |
064af421 | 8333 | |
982697a4 BP |
8334 | case OFPTYPE_PACKET_OUT: |
8335 | return handle_packet_out(ofconn, oh); | |
064af421 | 8336 | |
982697a4 | 8337 | case OFPTYPE_PORT_MOD: |
d1e2cf21 | 8338 | return handle_port_mod(ofconn, oh); |
064af421 | 8339 | |
982697a4 | 8340 | case OFPTYPE_FLOW_MOD: |
2e4f5fcf | 8341 | return handle_flow_mod(ofconn, oh); |
064af421 | 8342 | |
7395c052 NZ |
8343 | case OFPTYPE_GROUP_MOD: |
8344 | return handle_group_mod(ofconn, oh); | |
8345 | ||
918f2b82 AZ |
8346 | case OFPTYPE_TABLE_MOD: |
8347 | return handle_table_mod(ofconn, oh); | |
8348 | ||
9cae45dc JR |
8349 | case OFPTYPE_METER_MOD: |
8350 | return handle_meter_mod(ofconn, oh); | |
8351 | ||
982697a4 | 8352 | case OFPTYPE_BARRIER_REQUEST: |
d1e2cf21 | 8353 | return handle_barrier_request(ofconn, oh); |
064af421 | 8354 | |
6ea4776b JR |
8355 | case OFPTYPE_ROLE_REQUEST: |
8356 | return handle_role_request(ofconn, oh); | |
8357 | ||
d1e2cf21 | 8358 | /* OpenFlow replies. */ |
982697a4 | 8359 | case OFPTYPE_ECHO_REPLY: |
d1e2cf21 | 8360 | return 0; |
246e61ea | 8361 | |
d1e2cf21 | 8362 | /* Nicira extension requests. */ |
982697a4 | 8363 | case OFPTYPE_FLOW_MOD_TABLE_ID: |
6c1491fb | 8364 | return handle_nxt_flow_mod_table_id(ofconn, oh); |
d1e2cf21 | 8365 | |
982697a4 | 8366 | case OFPTYPE_SET_FLOW_FORMAT: |
d1e2cf21 BP |
8367 | return handle_nxt_set_flow_format(ofconn, oh); |
8368 | ||
982697a4 | 8369 | case OFPTYPE_SET_PACKET_IN_FORMAT: |
54834960 EJ |
8370 | return handle_nxt_set_packet_in_format(ofconn, oh); |
8371 | ||
982697a4 | 8372 | case OFPTYPE_SET_CONTROLLER_ID: |
a7349929 BP |
8373 | return handle_nxt_set_controller_id(ofconn, oh); |
8374 | ||
982697a4 | 8375 | case OFPTYPE_FLOW_AGE: |
f27f2134 BP |
8376 | /* Nothing to do. */ |
8377 | return 0; | |
8378 | ||
982697a4 | 8379 | case OFPTYPE_FLOW_MONITOR_CANCEL: |
2b07c8b1 BP |
8380 | return handle_flow_monitor_cancel(ofconn, oh); |
8381 | ||
982697a4 | 8382 | case OFPTYPE_SET_ASYNC_CONFIG: |
80d5aefd BP |
8383 | return handle_nxt_set_async_config(ofconn, oh); |
8384 | ||
c423b3b3 AC |
8385 | case OFPTYPE_GET_ASYNC_REQUEST: |
8386 | return handle_nxt_get_async_request(ofconn, oh); | |
8387 | ||
77ab5fd2 BP |
8388 | case OFPTYPE_NXT_RESUME: |
8389 | return handle_nxt_resume(ofconn, oh); | |
8390 | ||
349adfb2 | 8391 | /* Statistics requests. */ |
982697a4 BP |
8392 | case OFPTYPE_DESC_STATS_REQUEST: |
8393 | return handle_desc_stats_request(ofconn, oh); | |
8394 | ||
8395 | case OFPTYPE_FLOW_STATS_REQUEST: | |
8396 | return handle_flow_stats_request(ofconn, oh); | |
8397 | ||
8398 | case OFPTYPE_AGGREGATE_STATS_REQUEST: | |
8399 | return handle_aggregate_stats_request(ofconn, oh); | |
8400 | ||
8401 | case OFPTYPE_TABLE_STATS_REQUEST: | |
8402 | return handle_table_stats_request(ofconn, oh); | |
8403 | ||
03c72922 BP |
8404 | case OFPTYPE_TABLE_DESC_REQUEST: |
8405 | return handle_table_desc_request(ofconn, oh); | |
8406 | ||
982697a4 BP |
8407 | case OFPTYPE_PORT_STATS_REQUEST: |
8408 | return handle_port_stats_request(ofconn, oh); | |
8409 | ||
8410 | case OFPTYPE_QUEUE_STATS_REQUEST: | |
8411 | return handle_queue_stats_request(ofconn, oh); | |
8412 | ||
8413 | case OFPTYPE_PORT_DESC_STATS_REQUEST: | |
8414 | return handle_port_desc_stats_request(ofconn, oh); | |
8415 | ||
af3c51ae | 8416 | case OFPTYPE_TABLE_FEATURES_STATS_REQUEST: |
982697a4 | 8417 | case OFPTYPE_FLOW_MONITOR_STATS_REQUEST: |
af3c51ae BP |
8418 | /* Handled as multipart requests in handle_openflow(). */ |
8419 | OVS_NOT_REACHED(); | |
982697a4 | 8420 | |
261bd854 BP |
8421 | case OFPTYPE_METER_STATS_REQUEST: |
8422 | case OFPTYPE_METER_CONFIG_STATS_REQUEST: | |
9cae45dc JR |
8423 | return handle_meter_request(ofconn, oh, type); |
8424 | ||
261bd854 | 8425 | case OFPTYPE_METER_FEATURES_STATS_REQUEST: |
9cae45dc JR |
8426 | return handle_meter_features_request(ofconn, oh); |
8427 | ||
261bd854 | 8428 | case OFPTYPE_GROUP_STATS_REQUEST: |
7395c052 NZ |
8429 | return handle_group_stats_request(ofconn, oh); |
8430 | ||
261bd854 | 8431 | case OFPTYPE_GROUP_DESC_STATS_REQUEST: |
7395c052 NZ |
8432 | return handle_group_desc_stats_request(ofconn, oh); |
8433 | ||
261bd854 | 8434 | case OFPTYPE_GROUP_FEATURES_STATS_REQUEST: |
7395c052 NZ |
8435 | return handle_group_features_stats_request(ofconn, oh); |
8436 | ||
7395c052 | 8437 | case OFPTYPE_QUEUE_GET_CONFIG_REQUEST: |
e8f9a7bb | 8438 | return handle_queue_get_config_request(ofconn, oh); |
2e1ae200 | 8439 | |
777af88d AC |
8440 | case OFPTYPE_BUNDLE_CONTROL: |
8441 | return handle_bundle_control(ofconn, oh); | |
8442 | ||
8443 | case OFPTYPE_BUNDLE_ADD_MESSAGE: | |
8444 | return handle_bundle_add(ofconn, oh); | |
8445 | ||
4e548ad9 ML |
8446 | case OFPTYPE_NXT_TLV_TABLE_MOD: |
8447 | return handle_tlv_table_mod(ofconn, oh); | |
6159c531 | 8448 | |
4e548ad9 ML |
8449 | case OFPTYPE_NXT_TLV_TABLE_REQUEST: |
8450 | return handle_tlv_table_request(ofconn, oh); | |
6159c531 | 8451 | |
fb8f22c1 BY |
8452 | case OFPTYPE_IPFIX_BRIDGE_STATS_REQUEST: |
8453 | return handle_ipfix_bridge_stats_request(ofconn, oh); | |
8454 | ||
8455 | case OFPTYPE_IPFIX_FLOW_STATS_REQUEST: | |
8456 | return handle_ipfix_flow_stats_request(ofconn, oh); | |
8457 | ||
2a7c4805 JP |
8458 | case OFPTYPE_CT_FLUSH_ZONE: |
8459 | return handle_nxt_ct_flush_zone(ofconn, oh); | |
8460 | ||
982697a4 BP |
8461 | case OFPTYPE_HELLO: |
8462 | case OFPTYPE_ERROR: | |
8463 | case OFPTYPE_FEATURES_REPLY: | |
8464 | case OFPTYPE_GET_CONFIG_REPLY: | |
8465 | case OFPTYPE_PACKET_IN: | |
8466 | case OFPTYPE_FLOW_REMOVED: | |
8467 | case OFPTYPE_PORT_STATUS: | |
8468 | case OFPTYPE_BARRIER_REPLY: | |
c545d38d | 8469 | case OFPTYPE_QUEUE_GET_CONFIG_REPLY: |
982697a4 BP |
8470 | case OFPTYPE_DESC_STATS_REPLY: |
8471 | case OFPTYPE_FLOW_STATS_REPLY: | |
8472 | case OFPTYPE_QUEUE_STATS_REPLY: | |
8473 | case OFPTYPE_PORT_STATS_REPLY: | |
8474 | case OFPTYPE_TABLE_STATS_REPLY: | |
8475 | case OFPTYPE_AGGREGATE_STATS_REPLY: | |
8476 | case OFPTYPE_PORT_DESC_STATS_REPLY: | |
8477 | case OFPTYPE_ROLE_REPLY: | |
8478 | case OFPTYPE_FLOW_MONITOR_PAUSED: | |
8479 | case OFPTYPE_FLOW_MONITOR_RESUMED: | |
8480 | case OFPTYPE_FLOW_MONITOR_STATS_REPLY: | |
2e1ae200 | 8481 | case OFPTYPE_GET_ASYNC_REPLY: |
261bd854 BP |
8482 | case OFPTYPE_GROUP_STATS_REPLY: |
8483 | case OFPTYPE_GROUP_DESC_STATS_REPLY: | |
8484 | case OFPTYPE_GROUP_FEATURES_STATS_REPLY: | |
8485 | case OFPTYPE_METER_STATS_REPLY: | |
8486 | case OFPTYPE_METER_CONFIG_STATS_REPLY: | |
8487 | case OFPTYPE_METER_FEATURES_STATS_REPLY: | |
8488 | case OFPTYPE_TABLE_FEATURES_STATS_REPLY: | |
03c72922 | 8489 | case OFPTYPE_TABLE_DESC_REPLY: |
252f3411 | 8490 | case OFPTYPE_ROLE_STATUS: |
3c35db62 | 8491 | case OFPTYPE_REQUESTFORWARD: |
6c6eedc5 | 8492 | case OFPTYPE_TABLE_STATUS: |
4e548ad9 | 8493 | case OFPTYPE_NXT_TLV_TABLE_REPLY: |
fb8f22c1 BY |
8494 | case OFPTYPE_IPFIX_BRIDGE_STATS_REPLY: |
8495 | case OFPTYPE_IPFIX_FLOW_STATS_REPLY: | |
064af421 | 8496 | default: |
76ec08e0 YT |
8497 | if (ofpmsg_is_stat_request(oh)) { |
8498 | return OFPERR_OFPBRC_BAD_STAT; | |
8499 | } else { | |
8500 | return OFPERR_OFPBRC_BAD_TYPE; | |
8501 | } | |
064af421 | 8502 | } |
d1e2cf21 | 8503 | } |
064af421 | 8504 | |
b20f4073 | 8505 | static void |
fd4b7a0e | 8506 | handle_openflow(struct ofconn *ofconn, const struct ovs_list *msgs) |
15aaf599 | 8507 | OVS_EXCLUDED(ofproto_mutex) |
d1e2cf21 | 8508 | { |
fd4b7a0e | 8509 | COVERAGE_INC(ofproto_recv_openflow); |
d51c8b71 | 8510 | |
fd4b7a0e BP |
8511 | struct ofpbuf *msg = ofpbuf_from_list(ovs_list_front(msgs)); |
8512 | enum ofptype type; | |
8513 | enum ofperr error = ofptype_decode(&type, msg->data); | |
8514 | if (!error) { | |
4e413ac8 BP |
8515 | if (type == OFPTYPE_TABLE_FEATURES_STATS_REQUEST) { |
8516 | handle_table_features_request(ofconn, msgs); | |
af3c51ae BP |
8517 | } else if (type == OFPTYPE_FLOW_MONITOR_STATS_REQUEST) { |
8518 | handle_flow_monitor_request(ofconn, msgs); | |
4e413ac8 | 8519 | } else if (!ovs_list_is_short(msgs)) { |
fd4b7a0e BP |
8520 | error = OFPERR_OFPBRC_BAD_STAT; |
8521 | } else { | |
8522 | error = handle_single_part_openflow(ofconn, msg->data, type); | |
8523 | } | |
8524 | } | |
b20f4073 | 8525 | if (error) { |
fd4b7a0e | 8526 | ofconn_send_error(ofconn, msg->data, error); |
064af421 | 8527 | } |
7ee20df1 BP |
8528 | } |
8529 | \f | |
064af421 | 8530 | static uint64_t |
fa60c019 | 8531 | pick_datapath_id(const struct ofproto *ofproto) |
064af421 | 8532 | { |
fa60c019 | 8533 | const struct ofport *port; |
064af421 | 8534 | |
abe529af | 8535 | port = ofproto_get_port(ofproto, OFPP_LOCAL); |
fa60c019 | 8536 | if (port) { |
74ff3298 | 8537 | struct eth_addr ea; |
fa60c019 BP |
8538 | int error; |
8539 | ||
74ff3298 | 8540 | error = netdev_get_etheraddr(port->netdev, &ea); |
064af421 BP |
8541 | if (!error) { |
8542 | return eth_addr_to_uint64(ea); | |
8543 | } | |
fbfa2911 BP |
8544 | VLOG_WARN("%s: could not get MAC address for %s (%s)", |
8545 | ofproto->name, netdev_get_name(port->netdev), | |
10a89ef0 | 8546 | ovs_strerror(error)); |
064af421 | 8547 | } |
fa60c019 | 8548 | return ofproto->fallback_dpid; |
064af421 BP |
8549 | } |
8550 | ||
8551 | static uint64_t | |
8552 | pick_fallback_dpid(void) | |
8553 | { | |
74ff3298 JR |
8554 | struct eth_addr ea; |
8555 | eth_addr_nicira_random(&ea); | |
064af421 BP |
8556 | return eth_addr_to_uint64(ea); |
8557 | } | |
8558 | \f | |
254750ce BP |
8559 | /* Table overflow policy. */ |
8560 | ||
ad3efdcb EJ |
8561 | /* Chooses and updates 'rulep' with a rule to evict from 'table'. Sets 'rulep' |
8562 | * to NULL if the table is not configured to evict rules or if the table | |
8563 | * contains no evictable rules. (Rules with a readlock on their evict rwlock, | |
8564 | * or with no timeouts are not evictable.) */ | |
8565 | static bool | |
8566 | choose_rule_to_evict(struct oftable *table, struct rule **rulep) | |
15aaf599 | 8567 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
8568 | { |
8569 | struct eviction_group *evg; | |
8570 | ||
ad3efdcb | 8571 | *rulep = NULL; |
82c22d34 | 8572 | if (!table->eviction) { |
ad3efdcb | 8573 | return false; |
254750ce BP |
8574 | } |
8575 | ||
8576 | /* In the common case, the outer and inner loops here will each be entered | |
8577 | * exactly once: | |
8578 | * | |
8579 | * - The inner loop normally "return"s in its first iteration. If the | |
8580 | * eviction group has any evictable rules, then it always returns in | |
8581 | * some iteration. | |
8582 | * | |
8583 | * - The outer loop only iterates more than once if the largest eviction | |
8584 | * group has no evictable rules. | |
8585 | * | |
8586 | * - The outer loop can exit only if table's 'max_flows' is all filled up | |
afe2143d | 8587 | * by unevictable rules. */ |
254750ce BP |
8588 | HEAP_FOR_EACH (evg, size_node, &table->eviction_groups_by_size) { |
8589 | struct rule *rule; | |
8590 | ||
8591 | HEAP_FOR_EACH (rule, evg_node, &evg->rules) { | |
15aaf599 BP |
8592 | *rulep = rule; |
8593 | return true; | |
254750ce BP |
8594 | } |
8595 | } | |
8596 | ||
ad3efdcb | 8597 | return false; |
254750ce | 8598 | } |
254750ce BP |
8599 | \f |
8600 | /* Eviction groups. */ | |
8601 | ||
8602 | /* Returns the priority to use for an eviction_group that contains 'n_rules' | |
8603 | * rules. The priority contains low-order random bits to ensure that eviction | |
8604 | * groups with the same number of rules are prioritized randomly. */ | |
8605 | static uint32_t | |
8606 | eviction_group_priority(size_t n_rules) | |
8607 | { | |
8608 | uint16_t size = MIN(UINT16_MAX, n_rules); | |
8609 | return (size << 16) | random_uint16(); | |
8610 | } | |
8611 | ||
8612 | /* Updates 'evg', an eviction_group within 'table', following a change that | |
8613 | * adds or removes rules in 'evg'. */ | |
8614 | static void | |
8615 | eviction_group_resized(struct oftable *table, struct eviction_group *evg) | |
15aaf599 | 8616 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
8617 | { |
8618 | heap_change(&table->eviction_groups_by_size, &evg->size_node, | |
8619 | eviction_group_priority(heap_count(&evg->rules))); | |
8620 | } | |
8621 | ||
8622 | /* Destroys 'evg', an eviction_group within 'table': | |
8623 | * | |
8624 | * - Removes all the rules, if any, from 'evg'. (It doesn't destroy the | |
8625 | * rules themselves, just removes them from the eviction group.) | |
8626 | * | |
8627 | * - Removes 'evg' from 'table'. | |
8628 | * | |
8629 | * - Frees 'evg'. */ | |
8630 | static void | |
8631 | eviction_group_destroy(struct oftable *table, struct eviction_group *evg) | |
15aaf599 | 8632 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
8633 | { |
8634 | while (!heap_is_empty(&evg->rules)) { | |
8635 | struct rule *rule; | |
8636 | ||
8637 | rule = CONTAINER_OF(heap_pop(&evg->rules), struct rule, evg_node); | |
8638 | rule->eviction_group = NULL; | |
8639 | } | |
8640 | hmap_remove(&table->eviction_groups_by_id, &evg->id_node); | |
8641 | heap_remove(&table->eviction_groups_by_size, &evg->size_node); | |
8642 | heap_destroy(&evg->rules); | |
8643 | free(evg); | |
8644 | } | |
8645 | ||
8646 | /* Removes 'rule' from its eviction group, if any. */ | |
8647 | static void | |
8648 | eviction_group_remove_rule(struct rule *rule) | |
15aaf599 | 8649 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
8650 | { |
8651 | if (rule->eviction_group) { | |
8652 | struct oftable *table = &rule->ofproto->tables[rule->table_id]; | |
8653 | struct eviction_group *evg = rule->eviction_group; | |
8654 | ||
8655 | rule->eviction_group = NULL; | |
8656 | heap_remove(&evg->rules, &rule->evg_node); | |
8657 | if (heap_is_empty(&evg->rules)) { | |
8658 | eviction_group_destroy(table, evg); | |
8659 | } else { | |
8660 | eviction_group_resized(table, evg); | |
8661 | } | |
8662 | } | |
8663 | } | |
8664 | ||
8665 | /* Hashes the 'rule''s values for the eviction_fields of 'rule''s table, and | |
8666 | * returns the hash value. */ | |
8667 | static uint32_t | |
8668 | eviction_group_hash_rule(struct rule *rule) | |
15aaf599 | 8669 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
8670 | { |
8671 | struct oftable *table = &rule->ofproto->tables[rule->table_id]; | |
8672 | const struct mf_subfield *sf; | |
5cb7a798 | 8673 | struct flow flow; |
254750ce BP |
8674 | uint32_t hash; |
8675 | ||
8676 | hash = table->eviction_group_id_basis; | |
8fd47924 | 8677 | miniflow_expand(rule->cr.match.flow, &flow); |
254750ce BP |
8678 | for (sf = table->eviction_fields; |
8679 | sf < &table->eviction_fields[table->n_eviction_fields]; | |
8680 | sf++) | |
8681 | { | |
aff49b8c | 8682 | if (mf_are_prereqs_ok(sf->field, &flow, NULL)) { |
254750ce BP |
8683 | union mf_value value; |
8684 | ||
5cb7a798 | 8685 | mf_get_value(sf->field, &flow, &value); |
254750ce BP |
8686 | if (sf->ofs) { |
8687 | bitwise_zero(&value, sf->field->n_bytes, 0, sf->ofs); | |
8688 | } | |
8689 | if (sf->ofs + sf->n_bits < sf->field->n_bytes * 8) { | |
8690 | unsigned int start = sf->ofs + sf->n_bits; | |
8691 | bitwise_zero(&value, sf->field->n_bytes, start, | |
8692 | sf->field->n_bytes * 8 - start); | |
8693 | } | |
8694 | hash = hash_bytes(&value, sf->field->n_bytes, hash); | |
8695 | } else { | |
8696 | hash = hash_int(hash, 0); | |
8697 | } | |
8698 | } | |
8699 | ||
8700 | return hash; | |
8701 | } | |
8702 | ||
8703 | /* Returns an eviction group within 'table' with the given 'id', creating one | |
8704 | * if necessary. */ | |
8705 | static struct eviction_group * | |
8706 | eviction_group_find(struct oftable *table, uint32_t id) | |
15aaf599 | 8707 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
8708 | { |
8709 | struct eviction_group *evg; | |
8710 | ||
8711 | HMAP_FOR_EACH_WITH_HASH (evg, id_node, id, &table->eviction_groups_by_id) { | |
8712 | return evg; | |
8713 | } | |
8714 | ||
8715 | evg = xmalloc(sizeof *evg); | |
8716 | hmap_insert(&table->eviction_groups_by_id, &evg->id_node, id); | |
8717 | heap_insert(&table->eviction_groups_by_size, &evg->size_node, | |
8718 | eviction_group_priority(0)); | |
8719 | heap_init(&evg->rules); | |
8720 | ||
8721 | return evg; | |
8722 | } | |
8723 | ||
8724 | /* Returns an eviction priority for 'rule'. The return value should be | |
f70b94de BP |
8725 | * interpreted so that higher priorities make a rule a more attractive |
8726 | * candidate for eviction. */ | |
8727 | static uint64_t | |
dc437090 | 8728 | rule_eviction_priority(struct ofproto *ofproto, struct rule *rule) |
15aaf599 | 8729 | OVS_REQUIRES(ofproto_mutex) |
254750ce | 8730 | { |
f70b94de BP |
8731 | /* Calculate absolute time when this flow will expire. If it will never |
8732 | * expire, then return 0 to make it unevictable. */ | |
dc437090 | 8733 | long long int expiration = LLONG_MAX; |
dc437090 | 8734 | if (rule->hard_timeout) { |
f70b94de BP |
8735 | /* 'modified' needs protection even when we hold 'ofproto_mutex'. */ |
8736 | ovs_mutex_lock(&rule->mutex); | |
8737 | long long int modified = rule->modified; | |
8738 | ovs_mutex_unlock(&rule->mutex); | |
8739 | ||
dc437090 JR |
8740 | expiration = modified + rule->hard_timeout * 1000; |
8741 | } | |
8742 | if (rule->idle_timeout) { | |
8743 | uint64_t packets, bytes; | |
8744 | long long int used; | |
8745 | long long int idle_expiration; | |
8746 | ||
8747 | ofproto->ofproto_class->rule_get_stats(rule, &packets, &bytes, &used); | |
8748 | idle_expiration = used + rule->idle_timeout * 1000; | |
8749 | expiration = MIN(expiration, idle_expiration); | |
8750 | } | |
254750ce BP |
8751 | if (expiration == LLONG_MAX) { |
8752 | return 0; | |
8753 | } | |
8754 | ||
8755 | /* Calculate the time of expiration as a number of (approximate) seconds | |
8756 | * after program startup. | |
8757 | * | |
8758 | * This should work OK for program runs that last UINT32_MAX seconds or | |
8759 | * less. Therefore, please restart OVS at least once every 136 years. */ | |
f70b94de | 8760 | uint32_t expiration_ofs = (expiration >> 10) - (time_boot_msec() >> 10); |
254750ce | 8761 | |
f70b94de BP |
8762 | /* Combine expiration time with OpenFlow "importance" to form a single |
8763 | * priority value. We want flows with relatively low "importance" to be | |
8764 | * evicted before even considering expiration time, so put "importance" in | |
8765 | * the most significant bits and expiration time in the least significant | |
8766 | * bits. | |
8767 | * | |
8768 | * Small 'priority' should be evicted before those with large 'priority'. | |
8769 | * The caller expects the opposite convention (a large return value being | |
8770 | * more attractive for eviction) so we invert it before returning. */ | |
8771 | uint64_t priority = ((uint64_t) rule->importance << 32) + expiration_ofs; | |
8772 | return UINT64_MAX - priority; | |
254750ce BP |
8773 | } |
8774 | ||
8775 | /* Adds 'rule' to an appropriate eviction group for its oftable's | |
8776 | * configuration. Does nothing if 'rule''s oftable doesn't have eviction | |
8777 | * enabled, or if 'rule' is a permanent rule (one that will never expire on its | |
8778 | * own). | |
8779 | * | |
8780 | * The caller must ensure that 'rule' is not already in an eviction group. */ | |
8781 | static void | |
8782 | eviction_group_add_rule(struct rule *rule) | |
15aaf599 | 8783 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
8784 | { |
8785 | struct ofproto *ofproto = rule->ofproto; | |
8786 | struct oftable *table = &ofproto->tables[rule->table_id]; | |
a3779dbc | 8787 | bool has_timeout; |
254750ce | 8788 | |
dc437090 JR |
8789 | /* Timeouts may be modified only when holding 'ofproto_mutex'. We have it |
8790 | * so no additional protection is needed. */ | |
a3779dbc | 8791 | has_timeout = rule->hard_timeout || rule->idle_timeout; |
a3779dbc | 8792 | |
82c22d34 | 8793 | if (table->eviction && has_timeout) { |
254750ce BP |
8794 | struct eviction_group *evg; |
8795 | ||
8796 | evg = eviction_group_find(table, eviction_group_hash_rule(rule)); | |
8797 | ||
8798 | rule->eviction_group = evg; | |
8799 | heap_insert(&evg->rules, &rule->evg_node, | |
dc437090 | 8800 | rule_eviction_priority(ofproto, rule)); |
254750ce BP |
8801 | eviction_group_resized(table, evg); |
8802 | } | |
8803 | } | |
8804 | \f | |
d0918789 BP |
8805 | /* oftables. */ |
8806 | ||
8807 | /* Initializes 'table'. */ | |
8808 | static void | |
8809 | oftable_init(struct oftable *table) | |
8810 | { | |
5c67e4af | 8811 | memset(table, 0, sizeof *table); |
d70e8c28 | 8812 | classifier_init(&table->cls, flow_segment_u64s); |
ec1c5c7e | 8813 | table->max_flows = UINT_MAX; |
d79e3d70 | 8814 | table->n_flows = 0; |
82c22d34 BP |
8815 | hmap_init(&table->eviction_groups_by_id); |
8816 | heap_init(&table->eviction_groups_by_size); | |
3c1bb396 | 8817 | atomic_init(&table->miss_config, OFPUTIL_TABLE_MISS_DEFAULT); |
f017d986 | 8818 | |
f017d986 JR |
8819 | classifier_set_prefix_fields(&table->cls, default_prefix_fields, |
8820 | ARRAY_SIZE(default_prefix_fields)); | |
d611866c SH |
8821 | |
8822 | atomic_init(&table->n_matched, 0); | |
8823 | atomic_init(&table->n_missed, 0); | |
d0918789 BP |
8824 | } |
8825 | ||
254750ce | 8826 | /* Destroys 'table', including its classifier and eviction groups. |
d0918789 BP |
8827 | * |
8828 | * The caller is responsible for freeing 'table' itself. */ | |
8829 | static void | |
8830 | oftable_destroy(struct oftable *table) | |
8831 | { | |
cb22974d | 8832 | ovs_assert(classifier_is_empty(&table->cls)); |
82c22d34 | 8833 | |
7394b8fb | 8834 | ovs_mutex_lock(&ofproto_mutex); |
82c22d34 | 8835 | oftable_configure_eviction(table, 0, NULL, 0); |
7394b8fb | 8836 | ovs_mutex_unlock(&ofproto_mutex); |
82c22d34 BP |
8837 | |
8838 | hmap_destroy(&table->eviction_groups_by_id); | |
8839 | heap_destroy(&table->eviction_groups_by_size); | |
d0918789 | 8840 | classifier_destroy(&table->cls); |
254750ce BP |
8841 | free(table->name); |
8842 | } | |
8843 | ||
4e413ac8 BP |
8844 | /* Changes the name of 'table' to 'name'. Null or empty string 'name' unsets |
8845 | * the name. | |
8846 | * | |
8847 | * 'level' should be 1 if the name is being set via OpenFlow, or 2 if the name | |
8848 | * is being set via OVSDB. Higher levels get precedence. | |
254750ce BP |
8849 | * |
8850 | * This only affects the name exposed for a table exposed through the OpenFlow | |
8851 | * OFPST_TABLE (as printed by "ovs-ofctl dump-tables"). */ | |
8852 | static void | |
4e413ac8 BP |
8853 | oftable_set_name(struct oftable *table, const char *name, int level) |
8854 | { | |
8855 | int len = name ? strnlen(name, OFP_MAX_TABLE_NAME_LEN) : 0; | |
8856 | if (level >= table->name_level) { | |
8857 | if (name) { | |
8858 | if (name[0]) { | |
8859 | if (!table->name || strncmp(name, table->name, len)) { | |
8860 | free(table->name); | |
8861 | table->name = xmemdup0(name, len); | |
8862 | } | |
8863 | } else { | |
8864 | free(table->name); | |
8865 | table->name = NULL; | |
8866 | } | |
8867 | table->name_level = level; | |
8868 | } else if (table->name_level == level) { | |
254750ce | 8869 | free(table->name); |
4e413ac8 BP |
8870 | table->name = NULL; |
8871 | table->name_level = 0; | |
254750ce | 8872 | } |
254750ce BP |
8873 | } |
8874 | } | |
8875 | ||
4e413ac8 BP |
8876 | /* Returns true if oftable_set_name(table, name, level) would be effective, |
8877 | * false otherwise. */ | |
8878 | static bool | |
8879 | oftable_may_set_name(const struct oftable *table, const char *name, int level) | |
8880 | { | |
8881 | return (level >= table->name_level | |
8882 | || !name | |
8883 | || !table->name | |
8884 | || !strncmp(name, table->name, | |
8885 | strnlen(name, OFP_MAX_TABLE_NAME_LEN))); | |
8886 | } | |
8887 | ||
254750ce BP |
8888 | /* oftables support a choice of two policies when adding a rule would cause the |
8889 | * number of flows in the table to exceed the configured maximum number: either | |
8890 | * they can refuse to add the new flow or they can evict some existing flow. | |
8891 | * This function configures the latter policy on 'table', with fairness based | |
8892 | * on the values of the 'n_fields' fields specified in 'fields'. (Specifying | |
8893 | * 'n_fields' as 0 disables fairness.) */ | |
8894 | static void | |
82c22d34 BP |
8895 | oftable_configure_eviction(struct oftable *table, unsigned int eviction, |
8896 | const struct mf_subfield *fields, size_t n_fields) | |
15aaf599 | 8897 | OVS_REQUIRES(ofproto_mutex) |
254750ce | 8898 | { |
254750ce BP |
8899 | struct rule *rule; |
8900 | ||
82c22d34 | 8901 | if ((table->eviction != 0) == (eviction != 0) |
254750ce BP |
8902 | && n_fields == table->n_eviction_fields |
8903 | && (!n_fields | |
8904 | || !memcmp(fields, table->eviction_fields, | |
8905 | n_fields * sizeof *fields))) { | |
82c22d34 BP |
8906 | /* The set of eviction fields did not change. If 'eviction' changed, |
8907 | * it remains nonzero, so that we can just update table->eviction | |
8908 | * without fussing with the eviction groups. */ | |
8909 | table->eviction = eviction; | |
254750ce BP |
8910 | return; |
8911 | } | |
8912 | ||
82c22d34 BP |
8913 | /* Destroy existing eviction groups, then destroy and recreate data |
8914 | * structures to recover memory. */ | |
8915 | struct eviction_group *evg, *next; | |
8916 | HMAP_FOR_EACH_SAFE (evg, next, id_node, &table->eviction_groups_by_id) { | |
8917 | eviction_group_destroy(table, evg); | |
8918 | } | |
8919 | hmap_destroy(&table->eviction_groups_by_id); | |
254750ce | 8920 | hmap_init(&table->eviction_groups_by_id); |
82c22d34 | 8921 | heap_destroy(&table->eviction_groups_by_size); |
254750ce BP |
8922 | heap_init(&table->eviction_groups_by_size); |
8923 | ||
82c22d34 BP |
8924 | /* Replace eviction groups by the new ones, if there is a change. Free the |
8925 | * old fields only after allocating the new ones, because 'fields == | |
8926 | * table->eviction_fields' is possible. */ | |
8927 | struct mf_subfield *old_fields = table->eviction_fields; | |
8928 | table->n_eviction_fields = n_fields; | |
8929 | table->eviction_fields = (fields | |
8930 | ? xmemdup(fields, n_fields * sizeof *fields) | |
8931 | : NULL); | |
8932 | free(old_fields); | |
8933 | ||
8934 | /* Add the new eviction groups, if enabled. */ | |
8935 | table->eviction = eviction; | |
8936 | if (table->eviction) { | |
8937 | table->eviction_group_id_basis = random_uint32(); | |
8938 | CLS_FOR_EACH (rule, cr, &table->cls) { | |
8939 | eviction_group_add_rule(rule); | |
8940 | } | |
254750ce | 8941 | } |
d0918789 BP |
8942 | } |
8943 | ||
bc5e6a91 JR |
8944 | /* Inserts 'rule' from the ofproto data structures BEFORE caller has inserted |
8945 | * it to the classifier. */ | |
8946 | static void | |
8947 | ofproto_rule_insert__(struct ofproto *ofproto, struct rule *rule) | |
8948 | OVS_REQUIRES(ofproto_mutex) | |
8949 | { | |
8950 | const struct rule_actions *actions = rule_get_actions(rule); | |
8951 | ||
30d0452c | 8952 | /* A rule may not be reinserted. */ |
9a0ac025 | 8953 | ovs_assert(rule->state != RULE_INSERTED); |
39c94593 | 8954 | |
bc5e6a91 | 8955 | if (rule->hard_timeout || rule->idle_timeout) { |
417e7e66 | 8956 | ovs_list_insert(&ofproto->expirable, &rule->expirable); |
bc5e6a91 JR |
8957 | } |
8958 | cookies_insert(ofproto, rule); | |
8959 | eviction_group_add_rule(rule); | |
8960 | if (actions->has_meter) { | |
8961 | meter_insert_rule(rule); | |
8962 | } | |
cc099268 JR |
8963 | if (actions->has_groups) { |
8964 | const struct ofpact_group *a; | |
8965 | OFPACT_FOR_EACH_TYPE_FLATTENED (a, GROUP, actions->ofpacts, | |
8966 | actions->ofpacts_len) { | |
8967 | struct ofgroup *group; | |
8968 | ||
5d08a275 JR |
8969 | group = ofproto_group_lookup(ofproto, a->group_id, OVS_VERSION_MAX, |
8970 | false); | |
cc099268 JR |
8971 | ovs_assert(group != NULL); |
8972 | group_add_rule(group, rule); | |
8973 | } | |
8974 | } | |
8975 | ||
30d0452c | 8976 | rule->state = RULE_INSERTED; |
bc5e6a91 JR |
8977 | } |
8978 | ||
6787a49f JR |
8979 | /* Removes 'rule' from the ofproto data structures. Caller may have deferred |
8980 | * the removal from the classifier. */ | |
d0918789 | 8981 | static void |
802f84ff | 8982 | ofproto_rule_remove__(struct ofproto *ofproto, struct rule *rule) |
15aaf599 | 8983 | OVS_REQUIRES(ofproto_mutex) |
d0918789 | 8984 | { |
30d0452c | 8985 | ovs_assert(rule->state == RULE_INSERTED); |
39c94593 | 8986 | |
98eaac36 | 8987 | cookies_remove(ofproto, rule); |
2c916028 | 8988 | |
254750ce | 8989 | eviction_group_remove_rule(rule); |
417e7e66 BW |
8990 | if (!ovs_list_is_empty(&rule->expirable)) { |
8991 | ovs_list_remove(&rule->expirable); | |
e503cc19 | 8992 | } |
417e7e66 BW |
8993 | if (!ovs_list_is_empty(&rule->meter_list_node)) { |
8994 | ovs_list_remove(&rule->meter_list_node); | |
8995 | ovs_list_init(&rule->meter_list_node); | |
9cae45dc | 8996 | } |
802f84ff | 8997 | |
cc099268 JR |
8998 | /* Remove the rule from any groups, except from the group that is being |
8999 | * deleted, if any. */ | |
9000 | const struct rule_actions *actions = rule_get_actions(rule); | |
9001 | ||
9002 | if (actions->has_groups) { | |
9003 | const struct ofpact_group *a; | |
9004 | ||
8483173b | 9005 | OFPACT_FOR_EACH_TYPE_FLATTENED(a, GROUP, actions->ofpacts, |
cc099268 JR |
9006 | actions->ofpacts_len) { |
9007 | struct ofgroup *group; | |
9008 | ||
5d08a275 JR |
9009 | group = ofproto_group_lookup(ofproto, a->group_id, OVS_VERSION_MAX, |
9010 | false); | |
cc099268 JR |
9011 | ovs_assert(group); |
9012 | ||
9013 | /* Leave the rule for the group that is being deleted, if any, | |
9014 | * as we still need the list of rules for clean-up. */ | |
9015 | if (!group->being_deleted) { | |
9016 | group_remove_rule(group, rule); | |
9017 | } | |
9018 | } | |
9019 | } | |
9020 | ||
30d0452c | 9021 | rule->state = RULE_REMOVED; |
0b4f2078 | 9022 | } |
d0918789 | 9023 | \f |
abe529af | 9024 | /* unixctl commands. */ |
7aa697dd | 9025 | |
abe529af | 9026 | struct ofproto * |
2ac6bedd | 9027 | ofproto_lookup(const char *name) |
7aa697dd | 9028 | { |
2ac6bedd | 9029 | struct ofproto *ofproto; |
7aa697dd | 9030 | |
2ac6bedd BP |
9031 | HMAP_FOR_EACH_WITH_HASH (ofproto, hmap_node, hash_string(name, 0), |
9032 | &all_ofprotos) { | |
9033 | if (!strcmp(ofproto->name, name)) { | |
9034 | return ofproto; | |
9035 | } | |
7aa697dd | 9036 | } |
2ac6bedd | 9037 | return NULL; |
7aa697dd BP |
9038 | } |
9039 | ||
9040 | static void | |
0e15264f BP |
9041 | ofproto_unixctl_list(struct unixctl_conn *conn, int argc OVS_UNUSED, |
9042 | const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED) | |
7aa697dd | 9043 | { |
7aa697dd | 9044 | struct ofproto *ofproto; |
7aa697dd | 9045 | struct ds results; |
7aa697dd | 9046 | |
7aa697dd | 9047 | ds_init(&results); |
2ac6bedd BP |
9048 | HMAP_FOR_EACH (ofproto, hmap_node, &all_ofprotos) { |
9049 | ds_put_format(&results, "%s\n", ofproto->name); | |
7aa697dd | 9050 | } |
bde9f75d | 9051 | unixctl_command_reply(conn, ds_cstr(&results)); |
7aa697dd | 9052 | ds_destroy(&results); |
7aa697dd BP |
9053 | } |
9054 | ||
9055 | static void | |
9056 | ofproto_unixctl_init(void) | |
9057 | { | |
9058 | static bool registered; | |
9059 | if (registered) { | |
9060 | return; | |
9061 | } | |
9062 | registered = true; | |
9063 | ||
0e15264f BP |
9064 | unixctl_command_register("ofproto/list", "", 0, 0, |
9065 | ofproto_unixctl_list, NULL); | |
064af421 | 9066 | } |
f0fb825a EG |
9067 | |
9068 | void | |
9069 | ofproto_set_vlan_limit(int vlan_limit) | |
9070 | { | |
9071 | flow_limit_vlans(vlan_limit); | |
9072 | } |