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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 | ||
146ee626 AP |
250 | static enum ofperr replace_rule_finish(struct ofproto *, struct ofproto_flow_mod *, |
251 | const struct openflow_mod_requester *, | |
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); | |
146ee626 AP |
275 | static enum ofperr ofproto_flow_mod_finish(struct ofproto *, |
276 | struct ofproto_flow_mod *, | |
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; |
b6bdc3cd | 309 | unsigned ofproto_max_revalidator = OFPROTO_MAX_REVALIDATOR_DEFAULT; |
e31ecf58 | 310 | unsigned ofproto_min_revalidate_pps = OFPROTO_MIN_REVALIDATE_PPS_DEFAULT; |
380f49c4 | 311 | |
e79a6c83 | 312 | size_t n_handlers, n_revalidators; |
6567010f | 313 | |
f797957a | 314 | /* Map from datapath name to struct ofproto, for use by unixctl commands. */ |
abe529af | 315 | static struct hmap all_ofprotos = HMAP_INITIALIZER(&all_ofprotos); |
ebe482fd | 316 | |
e1b1d06a JP |
317 | /* Initial mappings of port to OpenFlow number mappings. */ |
318 | static struct shash init_ofp_ports = SHASH_INITIALIZER(&init_ofp_ports); | |
319 | ||
abe529af | 320 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); |
f29152ca | 321 | |
40358701 GS |
322 | /* The default value of true waits for flow restore. */ |
323 | static bool flow_restore_wait = true; | |
324 | ||
b0408fca JP |
325 | /* Must be called to initialize the ofproto library. |
326 | * | |
327 | * The caller may pass in 'iface_hints', which contains an shash of | |
328 | * "iface_hint" elements indexed by the interface's name. The provider | |
329 | * may use these hints to describe the startup configuration in order to | |
330 | * reinitialize its state. The caller owns the provided data, so a | |
331 | * provider will make copies of anything required. An ofproto provider | |
332 | * will remove any existing state that is not described by the hint, and | |
333 | * may choose to remove it all. */ | |
334 | void | |
335 | ofproto_init(const struct shash *iface_hints) | |
abe529af | 336 | { |
e1b1d06a | 337 | struct shash_node *node; |
b0408fca | 338 | size_t i; |
f29152ca | 339 | |
b0408fca JP |
340 | ofproto_class_register(&ofproto_dpif_class); |
341 | ||
e1b1d06a JP |
342 | /* Make a local copy, since we don't own 'iface_hints' elements. */ |
343 | SHASH_FOR_EACH(node, iface_hints) { | |
344 | const struct iface_hint *orig_hint = node->data; | |
345 | struct iface_hint *new_hint = xmalloc(sizeof *new_hint); | |
346 | const char *br_type = ofproto_normalize_type(orig_hint->br_type); | |
347 | ||
348 | new_hint->br_name = xstrdup(orig_hint->br_name); | |
349 | new_hint->br_type = xstrdup(br_type); | |
350 | new_hint->ofp_port = orig_hint->ofp_port; | |
351 | ||
352 | shash_add(&init_ofp_ports, node->name, new_hint); | |
353 | } | |
354 | ||
b0408fca | 355 | for (i = 0; i < n_ofproto_classes; i++) { |
e1b1d06a | 356 | ofproto_classes[i]->init(&init_ofp_ports); |
abe529af | 357 | } |
0fc1f5c0 HH |
358 | |
359 | ofproto_unixctl_init(); | |
abe529af | 360 | } |
f29152ca | 361 | |
abe529af BP |
362 | /* 'type' should be a normalized datapath type, as returned by |
363 | * ofproto_normalize_type(). Returns the corresponding ofproto_class | |
364 | * structure, or a null pointer if there is none registered for 'type'. */ | |
365 | static const struct ofproto_class * | |
366 | ofproto_class_find__(const char *type) | |
367 | { | |
368 | size_t i; | |
f29152ca | 369 | |
abe529af BP |
370 | for (i = 0; i < n_ofproto_classes; i++) { |
371 | const struct ofproto_class *class = ofproto_classes[i]; | |
372 | struct sset types; | |
373 | bool found; | |
064af421 | 374 | |
abe529af BP |
375 | sset_init(&types); |
376 | class->enumerate_types(&types); | |
377 | found = sset_contains(&types, type); | |
378 | sset_destroy(&types); | |
bcf84111 | 379 | |
abe529af BP |
380 | if (found) { |
381 | return class; | |
382 | } | |
383 | } | |
384 | VLOG_WARN("unknown datapath type %s", type); | |
385 | return NULL; | |
386 | } | |
064af421 | 387 | |
abe529af BP |
388 | /* Registers a new ofproto class. After successful registration, new ofprotos |
389 | * of that type can be created using ofproto_create(). */ | |
390 | int | |
391 | ofproto_class_register(const struct ofproto_class *new_class) | |
392 | { | |
393 | size_t i; | |
7aa697dd | 394 | |
abe529af BP |
395 | for (i = 0; i < n_ofproto_classes; i++) { |
396 | if (ofproto_classes[i] == new_class) { | |
397 | return EEXIST; | |
398 | } | |
399 | } | |
064af421 | 400 | |
abe529af BP |
401 | if (n_ofproto_classes >= allocated_ofproto_classes) { |
402 | ofproto_classes = x2nrealloc(ofproto_classes, | |
403 | &allocated_ofproto_classes, | |
404 | sizeof *ofproto_classes); | |
405 | } | |
406 | ofproto_classes[n_ofproto_classes++] = new_class; | |
407 | return 0; | |
408 | } | |
064af421 | 409 | |
abe529af BP |
410 | /* Unregisters a datapath provider. 'type' must have been previously |
411 | * registered and not currently be in use by any ofprotos. After | |
412 | * unregistration new datapaths of that type cannot be opened using | |
413 | * ofproto_create(). */ | |
414 | int | |
415 | ofproto_class_unregister(const struct ofproto_class *class) | |
416 | { | |
417 | size_t i; | |
76ce9432 | 418 | |
abe529af BP |
419 | for (i = 0; i < n_ofproto_classes; i++) { |
420 | if (ofproto_classes[i] == class) { | |
421 | for (i++; i < n_ofproto_classes; i++) { | |
422 | ofproto_classes[i - 1] = ofproto_classes[i]; | |
423 | } | |
424 | n_ofproto_classes--; | |
425 | return 0; | |
426 | } | |
427 | } | |
428 | VLOG_WARN("attempted to unregister an ofproto class that is not " | |
429 | "registered"); | |
430 | return EAFNOSUPPORT; | |
431 | } | |
4a4cdb3b | 432 | |
f79e673f BP |
433 | /* Clears 'types' and enumerates all registered ofproto types into it. The |
434 | * caller must first initialize the sset. */ | |
435 | void | |
436 | ofproto_enumerate_types(struct sset *types) | |
437 | { | |
abe529af | 438 | size_t i; |
064af421 | 439 | |
c799c306 | 440 | sset_clear(types); |
abe529af BP |
441 | for (i = 0; i < n_ofproto_classes; i++) { |
442 | ofproto_classes[i]->enumerate_types(types); | |
443 | } | |
f79e673f | 444 | } |
064af421 | 445 | |
f79e673f BP |
446 | /* Returns the fully spelled out name for the given ofproto 'type'. |
447 | * | |
448 | * Normalized type string can be compared with strcmp(). Unnormalized type | |
449 | * string might be the same even if they have different spellings. */ | |
450 | const char * | |
451 | ofproto_normalize_type(const char *type) | |
452 | { | |
abe529af | 453 | return type && type[0] ? type : "system"; |
f79e673f | 454 | } |
064af421 | 455 | |
f79e673f BP |
456 | /* Clears 'names' and enumerates the names of all known created ofprotos with |
457 | * the given 'type'. The caller must first initialize the sset. Returns 0 if | |
458 | * successful, otherwise a positive errno value. | |
459 | * | |
460 | * Some kinds of datapaths might not be practically enumerable. This is not | |
461 | * considered an error. */ | |
462 | int | |
463 | ofproto_enumerate_names(const char *type, struct sset *names) | |
464 | { | |
abe529af BP |
465 | const struct ofproto_class *class = ofproto_class_find__(type); |
466 | return class ? class->enumerate_names(type, names) : EAFNOSUPPORT; | |
239ad7d1 | 467 | } |
7aa697dd | 468 | |
39c94593 JR |
469 | static void |
470 | ofproto_bump_tables_version(struct ofproto *ofproto) | |
471 | { | |
472 | ++ofproto->tables_version; | |
473 | ofproto->ofproto_class->set_tables_version(ofproto, | |
474 | ofproto->tables_version); | |
475 | } | |
476 | ||
064af421 | 477 | int |
abe529af | 478 | ofproto_create(const char *datapath_name, const char *datapath_type, |
064af421 | 479 | struct ofproto **ofprotop) |
25010c68 | 480 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 481 | { |
abe529af BP |
482 | const struct ofproto_class *class; |
483 | struct ofproto *ofproto; | |
064af421 | 484 | int error; |
c2f0373a | 485 | int i; |
064af421 BP |
486 | |
487 | *ofprotop = NULL; | |
488 | ||
abe529af BP |
489 | datapath_type = ofproto_normalize_type(datapath_type); |
490 | class = ofproto_class_find__(datapath_type); | |
491 | if (!class) { | |
492 | VLOG_WARN("could not create datapath %s of unknown type %s", | |
493 | datapath_name, datapath_type); | |
494 | return EAFNOSUPPORT; | |
064af421 BP |
495 | } |
496 | ||
abe529af BP |
497 | ofproto = class->alloc(); |
498 | if (!ofproto) { | |
499 | VLOG_ERR("failed to allocate datapath %s of type %s", | |
500 | datapath_name, datapath_type); | |
501 | return ENOMEM; | |
502 | } | |
503 | ||
504 | /* Initialize. */ | |
abe7b10f | 505 | ovs_mutex_lock(&ofproto_mutex); |
abe529af BP |
506 | memset(ofproto, 0, sizeof *ofproto); |
507 | ofproto->ofproto_class = class; | |
508 | ofproto->name = xstrdup(datapath_name); | |
509 | ofproto->type = xstrdup(datapath_type); | |
510 | hmap_insert(&all_ofprotos, &ofproto->hmap_node, | |
511 | hash_string(ofproto->name, 0)); | |
512 | ofproto->datapath_id = 0; | |
8402c74b | 513 | ofproto->forward_bpdu = false; |
abe529af | 514 | ofproto->fallback_dpid = pick_fallback_dpid(); |
061bfea4 BP |
515 | ofproto->mfr_desc = NULL; |
516 | ofproto->hw_desc = NULL; | |
517 | ofproto->sw_desc = NULL; | |
518 | ofproto->serial_desc = NULL; | |
519 | ofproto->dp_desc = NULL; | |
ad99e2ed | 520 | ofproto->frag_handling = OFPUTIL_FRAG_NORMAL; |
abe529af | 521 | hmap_init(&ofproto->ports); |
fdcea803 | 522 | hmap_init(&ofproto->ofport_usage); |
abe529af | 523 | shash_init(&ofproto->port_by_name); |
e1b1d06a | 524 | simap_init(&ofproto->ofp_requests); |
430dbb14 | 525 | ofproto->max_ports = ofp_to_u16(OFPP_MAX); |
448c2fa8 | 526 | ofproto->eviction_group_timer = LLONG_MIN; |
6c1491fb BP |
527 | ofproto->tables = NULL; |
528 | ofproto->n_tables = 0; | |
44e0c35d | 529 | ofproto->tables_version = OVS_VERSION_MIN; |
98eaac36 | 530 | hindex_init(&ofproto->cookies); |
35f48b8b | 531 | hmap_init(&ofproto->learned_cookies); |
417e7e66 | 532 | ovs_list_init(&ofproto->expirable); |
abe529af | 533 | ofproto->connmgr = connmgr_create(ofproto, datapath_name, datapath_name); |
7478b5a2 | 534 | ofproto->min_mtu = INT_MAX; |
db88b35c | 535 | cmap_init(&ofproto->groups); |
abe7b10f | 536 | ovs_mutex_unlock(&ofproto_mutex); |
0ae01c64 | 537 | ofproto->ogf.types = 0xf; |
7cb279c2 SH |
538 | ofproto->ogf.capabilities = OFPGFC_CHAINING | OFPGFC_SELECT_LIVENESS | |
539 | OFPGFC_SELECT_WEIGHT; | |
08d1e234 BP |
540 | for (i = 0; i < 4; i++) { |
541 | ofproto->ogf.max_groups[i] = OFPG_MAX; | |
542 | ofproto->ogf.ofpacts[i] = (UINT64_C(1) << N_OFPACTS) - 1; | |
543 | } | |
8d8ab6c2 | 544 | ovsrcu_set(&ofproto->metadata_tab, tun_metadata_alloc(NULL)); |
abe529af | 545 | |
04f48a68 YHW |
546 | ovs_mutex_init(&ofproto->vl_mff_map.mutex); |
547 | cmap_init(&ofproto->vl_mff_map.cmap); | |
548 | ||
0f5f95a9 | 549 | error = ofproto->ofproto_class->construct(ofproto); |
19a87e36 | 550 | if (error) { |
abe529af | 551 | VLOG_ERR("failed to open datapath %s: %s", |
10a89ef0 | 552 | datapath_name, ovs_strerror(error)); |
25010c68 | 553 | ovs_mutex_lock(&ofproto_mutex); |
58f19539 | 554 | connmgr_destroy(ofproto->connmgr); |
25010c68 JR |
555 | ofproto->connmgr = NULL; |
556 | ovs_mutex_unlock(&ofproto_mutex); | |
abe529af | 557 | ofproto_destroy__(ofproto); |
19a87e36 BP |
558 | return error; |
559 | } | |
073e2a6f | 560 | |
c2f0373a | 561 | /* Check that hidden tables, if any, are at the end. */ |
cb22974d | 562 | ovs_assert(ofproto->n_tables); |
c2f0373a BP |
563 | for (i = 0; i + 1 < ofproto->n_tables; i++) { |
564 | enum oftable_flags flags = ofproto->tables[i].flags; | |
565 | enum oftable_flags next_flags = ofproto->tables[i + 1].flags; | |
566 | ||
cb22974d | 567 | ovs_assert(!(flags & OFTABLE_HIDDEN) || next_flags & OFTABLE_HIDDEN); |
c2f0373a | 568 | } |
19a87e36 | 569 | |
abe529af | 570 | ofproto->datapath_id = pick_datapath_id(ofproto); |
abe529af | 571 | init_ports(ofproto); |
7aa697dd | 572 | |
9cae45dc JR |
573 | /* Initialize meters table. */ |
574 | if (ofproto->ofproto_class->meter_get_features) { | |
575 | ofproto->ofproto_class->meter_get_features(ofproto, | |
576 | &ofproto->meter_features); | |
577 | } else { | |
578 | memset(&ofproto->meter_features, 0, sizeof ofproto->meter_features); | |
579 | } | |
ba8cff36 | 580 | hmap_init(&ofproto->meters); |
9e638f22 AZ |
581 | ofproto->slowpath_meter_id = UINT32_MAX; |
582 | ofproto->controller_meter_id = UINT32_MAX; | |
9cae45dc | 583 | |
621b8064 | 584 | /* Set the initial tables version. */ |
39c94593 | 585 | ofproto_bump_tables_version(ofproto); |
621b8064 | 586 | |
abe529af | 587 | *ofprotop = ofproto; |
064af421 BP |
588 | return 0; |
589 | } | |
590 | ||
91858960 BP |
591 | /* Must be called (only) by an ofproto implementation in its constructor |
592 | * function. See the large comment on 'construct' in struct ofproto_class for | |
593 | * details. */ | |
0f5f95a9 BP |
594 | void |
595 | ofproto_init_tables(struct ofproto *ofproto, int n_tables) | |
596 | { | |
597 | struct oftable *table; | |
598 | ||
cb22974d BP |
599 | ovs_assert(!ofproto->n_tables); |
600 | ovs_assert(n_tables >= 1 && n_tables <= 255); | |
0f5f95a9 BP |
601 | |
602 | ofproto->n_tables = n_tables; | |
603 | ofproto->tables = xmalloc(n_tables * sizeof *ofproto->tables); | |
604 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { | |
605 | oftable_init(table); | |
606 | } | |
607 | } | |
608 | ||
91858960 BP |
609 | /* To be optionally called (only) by an ofproto implementation in its |
610 | * constructor function. See the large comment on 'construct' in struct | |
611 | * ofproto_class for details. | |
612 | * | |
613 | * Sets the maximum number of ports to 'max_ports'. The ofproto generic layer | |
614 | * will then ensure that actions passed into the ofproto implementation will | |
615 | * not refer to OpenFlow ports numbered 'max_ports' or higher. If this | |
616 | * function is not called, there will be no such restriction. | |
617 | * | |
618 | * Reserved ports numbered OFPP_MAX and higher are special and not subject to | |
619 | * the 'max_ports' restriction. */ | |
620 | void | |
430dbb14 | 621 | ofproto_init_max_ports(struct ofproto *ofproto, uint16_t max_ports) |
91858960 | 622 | { |
430dbb14 | 623 | ovs_assert(max_ports <= ofp_to_u16(OFPP_MAX)); |
91858960 BP |
624 | ofproto->max_ports = max_ports; |
625 | } | |
626 | ||
e825ace2 BP |
627 | uint64_t |
628 | ofproto_get_datapath_id(const struct ofproto *ofproto) | |
629 | { | |
630 | return ofproto->datapath_id; | |
631 | } | |
632 | ||
064af421 BP |
633 | void |
634 | ofproto_set_datapath_id(struct ofproto *p, uint64_t datapath_id) | |
635 | { | |
636 | uint64_t old_dpid = p->datapath_id; | |
fa60c019 | 637 | p->datapath_id = datapath_id ? datapath_id : pick_datapath_id(p); |
064af421 | 638 | if (p->datapath_id != old_dpid) { |
76ce9432 BP |
639 | /* Force all active connections to reconnect, since there is no way to |
640 | * notify a controller that the datapath ID has changed. */ | |
fa05809b | 641 | ofproto_reconnect_controllers(p); |
064af421 BP |
642 | } |
643 | } | |
644 | ||
76ce9432 | 645 | void |
af26093a | 646 | ofproto_set_controllers(struct ofproto *p, struct shash *controllers) |
76ce9432 | 647 | { |
af26093a | 648 | connmgr_set_controllers(p->connmgr, controllers); |
064af421 BP |
649 | } |
650 | ||
31681a5d JP |
651 | void |
652 | ofproto_set_fail_mode(struct ofproto *p, enum ofproto_fail_mode fail_mode) | |
653 | { | |
19a87e36 | 654 | connmgr_set_fail_mode(p->connmgr, fail_mode); |
31681a5d JP |
655 | } |
656 | ||
fa05809b BP |
657 | /* Drops the connections between 'ofproto' and all of its controllers, forcing |
658 | * them to reconnect. */ | |
659 | void | |
660 | ofproto_reconnect_controllers(struct ofproto *ofproto) | |
661 | { | |
19a87e36 | 662 | connmgr_reconnect(ofproto->connmgr); |
917e50e1 BP |
663 | } |
664 | ||
665 | /* Sets the 'n' TCP port addresses in 'extras' as ones to which 'ofproto''s | |
666 | * in-band control should guarantee access, in the same way that in-band | |
667 | * control guarantees access to OpenFlow controllers. */ | |
668 | void | |
669 | ofproto_set_extra_in_band_remotes(struct ofproto *ofproto, | |
670 | const struct sockaddr_in *extras, size_t n) | |
671 | { | |
19a87e36 | 672 | connmgr_set_extra_in_band_remotes(ofproto->connmgr, extras, n); |
917e50e1 BP |
673 | } |
674 | ||
b1da6250 BP |
675 | /* Sets the OpenFlow queue used by flows set up by in-band control on |
676 | * 'ofproto' to 'queue_id'. If 'queue_id' is negative, then in-band control | |
677 | * flows will use the default queue. */ | |
678 | void | |
679 | ofproto_set_in_band_queue(struct ofproto *ofproto, int queue_id) | |
680 | { | |
19a87e36 | 681 | connmgr_set_in_band_queue(ofproto->connmgr, queue_id); |
b1da6250 BP |
682 | } |
683 | ||
7fdd2082 FL |
684 | /* Sets the bundle max idle timeout */ |
685 | void | |
686 | ofproto_set_bundle_idle_timeout(unsigned timeout) | |
687 | { | |
688 | connmgr_set_bundle_idle_timeout(timeout); | |
689 | } | |
690 | ||
084f5290 SH |
691 | /* Sets the number of flows at which eviction from the kernel flow table |
692 | * will occur. */ | |
693 | void | |
e79a6c83 | 694 | ofproto_set_flow_limit(unsigned limit) |
084f5290 | 695 | { |
e79a6c83 | 696 | ofproto_flow_limit = limit; |
084f5290 SH |
697 | } |
698 | ||
72310b04 JS |
699 | /* Sets the maximum idle time for flows in the datapath before they are |
700 | * expired. */ | |
701 | void | |
702 | ofproto_set_max_idle(unsigned max_idle) | |
703 | { | |
704 | ofproto_max_idle = max_idle; | |
705 | } | |
706 | ||
b6bdc3cd VB |
707 | /* Sets the maximum allowed revalidator timeout. */ |
708 | void | |
709 | ofproto_set_max_revalidator(unsigned max_revalidator) | |
710 | { | |
711 | if (max_revalidator >= 100) { | |
712 | ofproto_max_revalidator = max_revalidator; | |
713 | } | |
714 | } | |
715 | ||
e31ecf58 VB |
716 | /* Set minimum pps that flow must have in order to be revalidated when |
717 | * revalidation duration exceeds half of max-revalidator config variable. */ | |
718 | void | |
719 | ofproto_set_min_revalidate_pps(unsigned min_revalidate_pps) | |
720 | { | |
721 | ofproto_min_revalidate_pps = min_revalidate_pps ? min_revalidate_pps : 1; | |
722 | } | |
723 | ||
b53055f4 | 724 | /* If forward_bpdu is true, the NORMAL action will forward frames with |
8402c74b SS |
725 | * reserved (e.g. STP) destination Ethernet addresses. if forward_bpdu is false, |
726 | * the NORMAL action will drop these frames. */ | |
727 | void | |
728 | ofproto_set_forward_bpdu(struct ofproto *ofproto, bool forward_bpdu) | |
729 | { | |
730 | bool old_val = ofproto->forward_bpdu; | |
731 | ofproto->forward_bpdu = forward_bpdu; | |
732 | if (old_val != ofproto->forward_bpdu) { | |
733 | if (ofproto->ofproto_class->forward_bpdu_changed) { | |
734 | ofproto->ofproto_class->forward_bpdu_changed(ofproto); | |
735 | } | |
b53055f4 | 736 | } |
8402c74b SS |
737 | } |
738 | ||
e764773c | 739 | /* Sets the MAC aging timeout for the OFPP_NORMAL action on 'ofproto' to |
c4069512 BP |
740 | * 'idle_time', in seconds, and the maximum number of MAC table entries to |
741 | * 'max_entries'. */ | |
e764773c | 742 | void |
c4069512 BP |
743 | ofproto_set_mac_table_config(struct ofproto *ofproto, unsigned idle_time, |
744 | size_t max_entries) | |
e764773c | 745 | { |
c4069512 BP |
746 | if (ofproto->ofproto_class->set_mac_table_config) { |
747 | ofproto->ofproto_class->set_mac_table_config(ofproto, idle_time, | |
748 | max_entries); | |
e764773c BP |
749 | } |
750 | } | |
751 | ||
7c38d0a5 FL |
752 | /* Multicast snooping configuration. */ |
753 | ||
754 | /* Configures multicast snooping on 'ofproto' using the settings | |
755 | * defined in 's'. If 's' is NULL, disables multicast snooping. | |
756 | * | |
757 | * Returns 0 if successful, otherwise a positive errno value. */ | |
758 | int | |
759 | ofproto_set_mcast_snooping(struct ofproto *ofproto, | |
760 | const struct ofproto_mcast_snooping_settings *s) | |
761 | { | |
762 | return (ofproto->ofproto_class->set_mcast_snooping | |
763 | ? ofproto->ofproto_class->set_mcast_snooping(ofproto, s) | |
764 | : EOPNOTSUPP); | |
765 | } | |
766 | ||
8e04a33f | 767 | /* Configures multicast snooping flood settings on 'ofp_port' of 'ofproto'. |
7c38d0a5 FL |
768 | * |
769 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
770 | int | |
8e04a33f FL |
771 | ofproto_port_set_mcast_snooping(struct ofproto *ofproto, void *aux, |
772 | const struct ofproto_mcast_snooping_port_settings *s) | |
7c38d0a5 FL |
773 | { |
774 | return (ofproto->ofproto_class->set_mcast_snooping_port | |
8e04a33f | 775 | ? ofproto->ofproto_class->set_mcast_snooping_port(ofproto, aux, s) |
7c38d0a5 FL |
776 | : EOPNOTSUPP); |
777 | } | |
778 | ||
f2eee189 | 779 | void |
d4f6865c | 780 | ofproto_type_set_config(const char *datapath_type, const struct smap *cfg) |
f2eee189 | 781 | { |
d4f6865c DDP |
782 | const struct ofproto_class *class; |
783 | ||
784 | datapath_type = ofproto_normalize_type(datapath_type); | |
785 | class = ofproto_class_find__(datapath_type); | |
786 | ||
787 | if (class->type_set_config) { | |
788 | class->type_set_config(datapath_type, cfg); | |
789 | } | |
f2eee189 AW |
790 | } |
791 | ||
448a4b2f | 792 | void |
30ea0da7 | 793 | ofproto_set_threads(int n_handlers_, int n_revalidators_) |
448a4b2f | 794 | { |
e79a6c83 EJ |
795 | int threads = MAX(count_cpu_cores(), 2); |
796 | ||
30ea0da7 GS |
797 | n_revalidators = MAX(n_revalidators_, 0); |
798 | n_handlers = MAX(n_handlers_, 0); | |
e79a6c83 EJ |
799 | |
800 | if (!n_revalidators) { | |
801 | n_revalidators = n_handlers | |
802 | ? MAX(threads - (int) n_handlers, 1) | |
803 | : threads / 4 + 1; | |
804 | } | |
805 | ||
806 | if (!n_handlers) { | |
807 | n_handlers = MAX(threads - (int) n_revalidators, 1); | |
808 | } | |
448a4b2f AW |
809 | } |
810 | ||
8b6ff729 BP |
811 | void |
812 | ofproto_set_dp_desc(struct ofproto *p, const char *dp_desc) | |
813 | { | |
814 | free(p->dp_desc); | |
2225c0b9 | 815 | p->dp_desc = nullable_xstrdup(dp_desc); |
8b6ff729 BP |
816 | } |
817 | ||
8e371aa4 KK |
818 | void |
819 | ofproto_set_serial_desc(struct ofproto *p, const char *serial_desc) | |
820 | { | |
821 | free(p->serial_desc); | |
822 | p->serial_desc = nullable_xstrdup(serial_desc); | |
823 | } | |
824 | ||
064af421 | 825 | int |
81e2083f | 826 | ofproto_set_snoops(struct ofproto *ofproto, const struct sset *snoops) |
064af421 | 827 | { |
19a87e36 | 828 | return connmgr_set_snoops(ofproto->connmgr, snoops); |
064af421 BP |
829 | } |
830 | ||
831 | int | |
0193b2af JG |
832 | ofproto_set_netflow(struct ofproto *ofproto, |
833 | const struct netflow_options *nf_options) | |
064af421 | 834 | { |
abe529af BP |
835 | if (nf_options && sset_is_empty(&nf_options->collectors)) { |
836 | nf_options = NULL; | |
837 | } | |
838 | ||
839 | if (ofproto->ofproto_class->set_netflow) { | |
840 | return ofproto->ofproto_class->set_netflow(ofproto, nf_options); | |
064af421 | 841 | } else { |
abe529af | 842 | return nf_options ? EOPNOTSUPP : 0; |
064af421 BP |
843 | } |
844 | } | |
845 | ||
abe529af | 846 | int |
72b06300 BP |
847 | ofproto_set_sflow(struct ofproto *ofproto, |
848 | const struct ofproto_sflow_options *oso) | |
849 | { | |
abe529af BP |
850 | if (oso && sset_is_empty(&oso->targets)) { |
851 | oso = NULL; | |
852 | } | |
72b06300 | 853 | |
abe529af BP |
854 | if (ofproto->ofproto_class->set_sflow) { |
855 | return ofproto->ofproto_class->set_sflow(ofproto, oso); | |
72b06300 | 856 | } else { |
abe529af | 857 | return oso ? EOPNOTSUPP : 0; |
72b06300 BP |
858 | } |
859 | } | |
29089a54 RL |
860 | |
861 | int | |
862 | ofproto_set_ipfix(struct ofproto *ofproto, | |
863 | const struct ofproto_ipfix_bridge_exporter_options *bo, | |
864 | const struct ofproto_ipfix_flow_exporter_options *fo, | |
865 | size_t n_fo) | |
866 | { | |
867 | if (ofproto->ofproto_class->set_ipfix) { | |
868 | return ofproto->ofproto_class->set_ipfix(ofproto, bo, fo, n_fo); | |
869 | } else { | |
870 | return (bo || fo) ? EOPNOTSUPP : 0; | |
871 | } | |
872 | } | |
40358701 | 873 | |
fb8f22c1 BY |
874 | static int |
875 | ofproto_get_ipfix_stats(struct ofproto *ofproto, | |
876 | bool bridge_ipfix, | |
877 | struct ovs_list *replies) | |
878 | { | |
879 | int error; | |
880 | ||
881 | if (ofproto->ofproto_class->get_ipfix_stats) { | |
882 | error = ofproto->ofproto_class->get_ipfix_stats(ofproto, | |
883 | bridge_ipfix, | |
884 | replies); | |
885 | } else { | |
886 | error = EOPNOTSUPP; | |
887 | } | |
888 | ||
889 | return error; | |
890 | } | |
891 | ||
892 | static enum ofperr | |
893 | handle_ipfix_bridge_stats_request(struct ofconn *ofconn, | |
894 | const struct ofp_header *request) | |
895 | { | |
896 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
897 | struct ovs_list replies; | |
898 | enum ofperr error; | |
899 | ||
900 | ofpmp_init(&replies, request); | |
901 | error = ofproto_get_ipfix_stats(ofproto, true, &replies); | |
902 | ||
903 | if (!error) { | |
904 | ofconn_send_replies(ofconn, &replies); | |
905 | } else { | |
906 | ofpbuf_list_delete(&replies); | |
907 | } | |
908 | ||
909 | return error; | |
910 | } | |
911 | ||
912 | static enum ofperr | |
913 | handle_ipfix_flow_stats_request(struct ofconn *ofconn, | |
914 | const struct ofp_header *request) | |
915 | { | |
916 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
917 | struct ovs_list replies; | |
918 | enum ofperr error; | |
919 | ||
920 | ofpmp_init(&replies, request); | |
921 | error = ofproto_get_ipfix_stats(ofproto, false, &replies); | |
922 | ||
923 | if (!error) { | |
924 | ofconn_send_replies(ofconn, &replies); | |
925 | } else { | |
926 | ofpbuf_list_delete(&replies); | |
927 | } | |
928 | ||
929 | return error; | |
930 | } | |
931 | ||
2a7c4805 JP |
932 | static enum ofperr |
933 | handle_nxt_ct_flush_zone(struct ofconn *ofconn, const struct ofp_header *oh) | |
934 | { | |
935 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
936 | const struct nx_zone_id *nzi = ofpmsg_body(oh); | |
937 | ||
938 | if (!is_all_zeros(nzi->zero, sizeof nzi->zero)) { | |
939 | return OFPERR_NXBRC_MUST_BE_ZERO; | |
940 | } | |
941 | ||
942 | uint16_t zone = ntohs(nzi->zone_id); | |
943 | if (ofproto->ofproto_class->ct_flush) { | |
944 | ofproto->ofproto_class->ct_flush(ofproto, &zone); | |
945 | } else { | |
946 | return EOPNOTSUPP; | |
947 | } | |
948 | ||
949 | return 0; | |
950 | } | |
951 | ||
40358701 GS |
952 | void |
953 | ofproto_set_flow_restore_wait(bool flow_restore_wait_db) | |
954 | { | |
955 | flow_restore_wait = flow_restore_wait_db; | |
956 | } | |
957 | ||
958 | bool | |
959 | ofproto_get_flow_restore_wait(void) | |
960 | { | |
961 | return flow_restore_wait; | |
962 | } | |
963 | ||
27501802 WT |
964 | /* Retrieve datapath capabilities. */ |
965 | void | |
966 | ofproto_get_datapath_cap(const char *datapath_type, struct smap *dp_cap) | |
967 | { | |
968 | datapath_type = ofproto_normalize_type(datapath_type); | |
969 | const struct ofproto_class *class = ofproto_class_find__(datapath_type); | |
970 | ||
971 | if (class->get_datapath_cap) { | |
972 | class->get_datapath_cap(datapath_type, dp_cap); | |
973 | } | |
974 | } | |
975 | ||
993cae67 YHW |
976 | /* Connection tracking configuration. */ |
977 | void | |
978 | ofproto_ct_set_zone_timeout_policy(const char *datapath_type, uint16_t zone_id, | |
979 | struct simap *timeout_policy) | |
980 | { | |
981 | datapath_type = ofproto_normalize_type(datapath_type); | |
982 | const struct ofproto_class *class = ofproto_class_find__(datapath_type); | |
983 | ||
984 | if (class->ct_set_zone_timeout_policy) { | |
985 | class->ct_set_zone_timeout_policy(datapath_type, zone_id, | |
986 | timeout_policy); | |
987 | } | |
988 | } | |
989 | ||
990 | void | |
991 | ofproto_ct_del_zone_timeout_policy(const char *datapath_type, uint16_t zone_id) | |
992 | { | |
993 | datapath_type = ofproto_normalize_type(datapath_type); | |
994 | const struct ofproto_class *class = ofproto_class_find__(datapath_type); | |
995 | ||
996 | if (class->ct_del_zone_timeout_policy) { | |
997 | class->ct_del_zone_timeout_policy(datapath_type, zone_id); | |
998 | } | |
999 | ||
1000 | } | |
1001 | ||
e7934396 | 1002 | \f |
21f7563c JP |
1003 | /* Spanning Tree Protocol (STP) configuration. */ |
1004 | ||
1005 | /* Configures STP on 'ofproto' using the settings defined in 's'. If | |
1006 | * 's' is NULL, disables STP. | |
1007 | * | |
1008 | * Returns 0 if successful, otherwise a positive errno value. */ | |
1009 | int | |
1010 | ofproto_set_stp(struct ofproto *ofproto, | |
1011 | const struct ofproto_stp_settings *s) | |
1012 | { | |
1013 | return (ofproto->ofproto_class->set_stp | |
1014 | ? ofproto->ofproto_class->set_stp(ofproto, s) | |
1015 | : EOPNOTSUPP); | |
1016 | } | |
1017 | ||
1018 | /* Retrieves STP status of 'ofproto' and stores it in 's'. If the | |
1019 | * 'enabled' member of 's' is false, then the other members are not | |
1020 | * meaningful. | |
1021 | * | |
1022 | * Returns 0 if successful, otherwise a positive errno value. */ | |
1023 | int | |
1024 | ofproto_get_stp_status(struct ofproto *ofproto, | |
1025 | struct ofproto_stp_status *s) | |
1026 | { | |
1027 | return (ofproto->ofproto_class->get_stp_status | |
1028 | ? ofproto->ofproto_class->get_stp_status(ofproto, s) | |
1029 | : EOPNOTSUPP); | |
1030 | } | |
1031 | ||
1032 | /* Configures STP on 'ofp_port' of 'ofproto' using the settings defined | |
1033 | * in 's'. The caller is responsible for assigning STP port numbers | |
1034 | * (using the 'port_num' member in the range of 1 through 255, inclusive) | |
1035 | * and ensuring there are no duplicates. If the 's' is NULL, then STP | |
1036 | * is disabled on the port. | |
1037 | * | |
1038 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
1039 | int | |
4e022ec0 | 1040 | ofproto_port_set_stp(struct ofproto *ofproto, ofp_port_t ofp_port, |
21f7563c JP |
1041 | const struct ofproto_port_stp_settings *s) |
1042 | { | |
1043 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1044 | if (!ofport) { | |
94783c7c | 1045 | VLOG_WARN("%s: cannot configure STP on nonexistent port %"PRIu32, |
21f7563c JP |
1046 | ofproto->name, ofp_port); |
1047 | return ENODEV; | |
1048 | } | |
1049 | ||
1050 | return (ofproto->ofproto_class->set_stp_port | |
1051 | ? ofproto->ofproto_class->set_stp_port(ofport, s) | |
1052 | : EOPNOTSUPP); | |
1053 | } | |
1054 | ||
1055 | /* Retrieves STP port status of 'ofp_port' on 'ofproto' and stores it in | |
1056 | * 's'. If the 'enabled' member in 's' is false, then the other members | |
1057 | * are not meaningful. | |
1058 | * | |
1059 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
1060 | int | |
4e022ec0 | 1061 | ofproto_port_get_stp_status(struct ofproto *ofproto, ofp_port_t ofp_port, |
21f7563c JP |
1062 | struct ofproto_port_stp_status *s) |
1063 | { | |
1064 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1065 | if (!ofport) { | |
b0a5c43b | 1066 | VLOG_WARN_RL(&rl, "%s: cannot get STP status on nonexistent " |
94783c7c | 1067 | "port %"PRIu32, ofproto->name, ofp_port); |
21f7563c JP |
1068 | return ENODEV; |
1069 | } | |
1070 | ||
1071 | return (ofproto->ofproto_class->get_stp_port_status | |
1072 | ? ofproto->ofproto_class->get_stp_port_status(ofport, s) | |
1073 | : EOPNOTSUPP); | |
1074 | } | |
fd28ce3a JS |
1075 | |
1076 | /* Retrieves STP port statistics of 'ofp_port' on 'ofproto' and stores it in | |
1077 | * 's'. If the 'enabled' member in 's' is false, then the other members | |
1078 | * are not meaningful. | |
1079 | * | |
1080 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
1081 | int | |
1082 | ofproto_port_get_stp_stats(struct ofproto *ofproto, ofp_port_t ofp_port, | |
1083 | struct ofproto_port_stp_stats *s) | |
1084 | { | |
1085 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1086 | if (!ofport) { | |
1087 | VLOG_WARN_RL(&rl, "%s: cannot get STP stats on nonexistent " | |
94783c7c | 1088 | "port %"PRIu32, ofproto->name, ofp_port); |
fd28ce3a JS |
1089 | return ENODEV; |
1090 | } | |
1091 | ||
1092 | return (ofproto->ofproto_class->get_stp_port_stats | |
1093 | ? ofproto->ofproto_class->get_stp_port_stats(ofport, s) | |
1094 | : EOPNOTSUPP); | |
1095 | } | |
9efd308e DV |
1096 | |
1097 | /* Rapid Spanning Tree Protocol (RSTP) configuration. */ | |
1098 | ||
1099 | /* Configures RSTP on 'ofproto' using the settings defined in 's'. If | |
1100 | * 's' is NULL, disables RSTP. | |
1101 | * | |
1102 | * Returns 0 if successful, otherwise a positive errno value. */ | |
1103 | int | |
1104 | ofproto_set_rstp(struct ofproto *ofproto, | |
1105 | const struct ofproto_rstp_settings *s) | |
1106 | { | |
1107 | if (!ofproto->ofproto_class->set_rstp) { | |
1108 | return EOPNOTSUPP; | |
1109 | } | |
1110 | ofproto->ofproto_class->set_rstp(ofproto, s); | |
1111 | return 0; | |
1112 | } | |
1113 | ||
1114 | /* Retrieves RSTP status of 'ofproto' and stores it in 's'. If the | |
1115 | * 'enabled' member of 's' is false, then the other members are not | |
1116 | * meaningful. | |
1117 | * | |
1118 | * Returns 0 if successful, otherwise a positive errno value. */ | |
1119 | int | |
1120 | ofproto_get_rstp_status(struct ofproto *ofproto, | |
1121 | struct ofproto_rstp_status *s) | |
1122 | { | |
1123 | if (!ofproto->ofproto_class->get_rstp_status) { | |
1124 | return EOPNOTSUPP; | |
1125 | } | |
1126 | ofproto->ofproto_class->get_rstp_status(ofproto, s); | |
1127 | return 0; | |
1128 | } | |
1129 | ||
1130 | /* Configures RSTP on 'ofp_port' of 'ofproto' using the settings defined | |
1131 | * in 's'. The caller is responsible for assigning RSTP port numbers | |
1132 | * (using the 'port_num' member in the range of 1 through 255, inclusive) | |
1133 | * and ensuring there are no duplicates. If the 's' is NULL, then RSTP | |
1134 | * is disabled on the port. | |
1135 | * | |
1136 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
1137 | int | |
1138 | ofproto_port_set_rstp(struct ofproto *ofproto, ofp_port_t ofp_port, | |
1139 | const struct ofproto_port_rstp_settings *s) | |
1140 | { | |
1141 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1142 | if (!ofport) { | |
94783c7c | 1143 | VLOG_WARN("%s: cannot configure RSTP on nonexistent port %"PRIu32, |
9efd308e DV |
1144 | ofproto->name, ofp_port); |
1145 | return ENODEV; | |
1146 | } | |
1147 | ||
1148 | if (!ofproto->ofproto_class->set_rstp_port) { | |
1149 | return EOPNOTSUPP; | |
1150 | } | |
1151 | ofproto->ofproto_class->set_rstp_port(ofport, s); | |
1152 | return 0; | |
1153 | } | |
1154 | ||
1155 | /* Retrieves RSTP port status of 'ofp_port' on 'ofproto' and stores it in | |
1156 | * 's'. If the 'enabled' member in 's' is false, then the other members | |
1157 | * are not meaningful. | |
1158 | * | |
1159 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
1160 | int | |
1161 | ofproto_port_get_rstp_status(struct ofproto *ofproto, ofp_port_t ofp_port, | |
1162 | struct ofproto_port_rstp_status *s) | |
1163 | { | |
1164 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1165 | if (!ofport) { | |
1166 | VLOG_WARN_RL(&rl, "%s: cannot get RSTP status on nonexistent " | |
94783c7c | 1167 | "port %"PRIu32, ofproto->name, ofp_port); |
9efd308e DV |
1168 | return ENODEV; |
1169 | } | |
1170 | ||
1171 | if (!ofproto->ofproto_class->get_rstp_port_status) { | |
1172 | return EOPNOTSUPP; | |
1173 | } | |
1174 | ofproto->ofproto_class->get_rstp_port_status(ofport, s); | |
1175 | return 0; | |
1176 | } | |
21f7563c | 1177 | \f |
8b36f51e EJ |
1178 | /* Queue DSCP configuration. */ |
1179 | ||
1180 | /* Registers meta-data associated with the 'n_qdscp' Qualities of Service | |
1181 | * 'queues' attached to 'ofport'. This data is not intended to be sufficient | |
1182 | * to implement QoS. Instead, it is used to implement features which require | |
1183 | * knowledge of what queues exist on a port, and some basic information about | |
1184 | * them. | |
1185 | * | |
1186 | * Returns 0 if successful, otherwise a positive errno value. */ | |
1187 | int | |
4e022ec0 | 1188 | ofproto_port_set_queues(struct ofproto *ofproto, ofp_port_t ofp_port, |
8b36f51e EJ |
1189 | const struct ofproto_port_queue *queues, |
1190 | size_t n_queues) | |
1191 | { | |
1192 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1193 | ||
1194 | if (!ofport) { | |
94783c7c | 1195 | VLOG_WARN("%s: cannot set queues on nonexistent port %"PRIu32, |
8b36f51e EJ |
1196 | ofproto->name, ofp_port); |
1197 | return ENODEV; | |
1198 | } | |
1199 | ||
1200 | return (ofproto->ofproto_class->set_queues | |
1201 | ? ofproto->ofproto_class->set_queues(ofport, queues, n_queues) | |
1202 | : EOPNOTSUPP); | |
1203 | } | |
1204 | \f | |
0477baa9 DF |
1205 | /* LLDP configuration. */ |
1206 | void | |
1207 | ofproto_port_set_lldp(struct ofproto *ofproto, | |
1208 | ofp_port_t ofp_port, | |
1209 | const struct smap *cfg) | |
1210 | { | |
1211 | struct ofport *ofport; | |
1212 | int error; | |
1213 | ||
1214 | ofport = ofproto_get_port(ofproto, ofp_port); | |
1215 | if (!ofport) { | |
94783c7c | 1216 | VLOG_WARN("%s: cannot configure LLDP on nonexistent port %"PRIu32, |
0477baa9 DF |
1217 | ofproto->name, ofp_port); |
1218 | return; | |
1219 | } | |
1220 | error = (ofproto->ofproto_class->set_lldp | |
1221 | ? ofproto->ofproto_class->set_lldp(ofport, cfg) | |
1222 | : EOPNOTSUPP); | |
1223 | if (error) { | |
94783c7c | 1224 | VLOG_WARN("%s: lldp configuration on port %"PRIu32" (%s) failed (%s)", |
0477baa9 DF |
1225 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), |
1226 | ovs_strerror(error)); | |
1227 | } | |
1228 | } | |
1229 | ||
1230 | int | |
1231 | ofproto_set_aa(struct ofproto *ofproto, void *aux OVS_UNUSED, | |
1232 | const struct aa_settings *s) | |
1233 | { | |
1234 | if (!ofproto->ofproto_class->set_aa) { | |
1235 | return EOPNOTSUPP; | |
1236 | } | |
1237 | ofproto->ofproto_class->set_aa(ofproto, s); | |
1238 | return 0; | |
1239 | } | |
1240 | ||
1241 | int | |
1242 | ofproto_aa_mapping_register(struct ofproto *ofproto, void *aux, | |
1243 | const struct aa_mapping_settings *s) | |
1244 | { | |
1245 | if (!ofproto->ofproto_class->aa_mapping_set) { | |
1246 | return EOPNOTSUPP; | |
1247 | } | |
1248 | ofproto->ofproto_class->aa_mapping_set(ofproto, aux, s); | |
1249 | return 0; | |
1250 | } | |
1251 | ||
1252 | int | |
1253 | ofproto_aa_mapping_unregister(struct ofproto *ofproto, void *aux) | |
1254 | { | |
1255 | if (!ofproto->ofproto_class->aa_mapping_unset) { | |
1256 | return EOPNOTSUPP; | |
1257 | } | |
1258 | ofproto->ofproto_class->aa_mapping_unset(ofproto, aux); | |
1259 | return 0; | |
1260 | } | |
1261 | ||
1262 | int | |
1263 | ofproto_aa_vlan_get_queued(struct ofproto *ofproto, | |
1264 | struct ovs_list *list) | |
1265 | { | |
1266 | if (!ofproto->ofproto_class->aa_vlan_get_queued) { | |
1267 | return EOPNOTSUPP; | |
1268 | } | |
1269 | ofproto->ofproto_class->aa_vlan_get_queued(ofproto, list); | |
1270 | return 0; | |
1271 | } | |
1272 | ||
1273 | unsigned int | |
1274 | ofproto_aa_vlan_get_queue_size(struct ofproto *ofproto) | |
1275 | { | |
1276 | if (!ofproto->ofproto_class->aa_vlan_get_queue_size) { | |
1277 | return EOPNOTSUPP; | |
1278 | } | |
1279 | return ofproto->ofproto_class->aa_vlan_get_queue_size(ofproto); | |
1280 | } | |
1281 | ||
e7934396 BP |
1282 | /* Connectivity Fault Management configuration. */ |
1283 | ||
892815f5 | 1284 | /* Clears the CFM configuration from 'ofp_port' on 'ofproto'. */ |
e7934396 | 1285 | void |
4e022ec0 | 1286 | ofproto_port_clear_cfm(struct ofproto *ofproto, ofp_port_t ofp_port) |
e7934396 | 1287 | { |
abe529af BP |
1288 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1289 | if (ofport && ofproto->ofproto_class->set_cfm) { | |
a5610457 | 1290 | ofproto->ofproto_class->set_cfm(ofport, NULL); |
e7934396 BP |
1291 | } |
1292 | } | |
72b06300 | 1293 | |
892815f5 | 1294 | /* Configures connectivity fault management on 'ofp_port' in 'ofproto'. Takes |
93b8df38 EJ |
1295 | * basic configuration from the configuration members in 'cfm', and the remote |
1296 | * maintenance point ID from remote_mpid. Ignores the statistics members of | |
1297 | * 'cfm'. | |
e7934396 | 1298 | * |
892815f5 | 1299 | * This function has no effect if 'ofproto' does not have a port 'ofp_port'. */ |
e7934396 | 1300 | void |
4e022ec0 | 1301 | ofproto_port_set_cfm(struct ofproto *ofproto, ofp_port_t ofp_port, |
a5610457 | 1302 | const struct cfm_settings *s) |
e7934396 BP |
1303 | { |
1304 | struct ofport *ofport; | |
abe529af | 1305 | int error; |
e7934396 | 1306 | |
abe529af | 1307 | ofport = ofproto_get_port(ofproto, ofp_port); |
e7934396 | 1308 | if (!ofport) { |
94783c7c | 1309 | VLOG_WARN("%s: cannot configure CFM on nonexistent port %"PRIu32, |
892815f5 | 1310 | ofproto->name, ofp_port); |
e7934396 BP |
1311 | return; |
1312 | } | |
1313 | ||
93b8df38 EJ |
1314 | /* XXX: For configuration simplicity, we only support one remote_mpid |
1315 | * outside of the CFM module. It's not clear if this is the correct long | |
1316 | * term solution or not. */ | |
abe529af | 1317 | error = (ofproto->ofproto_class->set_cfm |
a5610457 | 1318 | ? ofproto->ofproto_class->set_cfm(ofport, s) |
abe529af BP |
1319 | : EOPNOTSUPP); |
1320 | if (error) { | |
94783c7c | 1321 | VLOG_WARN("%s: CFM configuration on port %"PRIu32" (%s) failed (%s)", |
abe529af | 1322 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), |
10a89ef0 | 1323 | ovs_strerror(error)); |
e7934396 | 1324 | } |
e7934396 | 1325 | } |
e7934396 | 1326 | |
ccc09689 EJ |
1327 | /* Configures BFD on 'ofp_port' in 'ofproto'. This function has no effect if |
1328 | * 'ofproto' does not have a port 'ofp_port'. */ | |
1329 | void | |
4e022ec0 | 1330 | ofproto_port_set_bfd(struct ofproto *ofproto, ofp_port_t ofp_port, |
ccc09689 EJ |
1331 | const struct smap *cfg) |
1332 | { | |
1333 | struct ofport *ofport; | |
1334 | int error; | |
1335 | ||
1336 | ofport = ofproto_get_port(ofproto, ofp_port); | |
1337 | if (!ofport) { | |
94783c7c | 1338 | VLOG_WARN("%s: cannot configure bfd on nonexistent port %"PRIu32, |
ccc09689 | 1339 | ofproto->name, ofp_port); |
e8999bdc | 1340 | return; |
ccc09689 EJ |
1341 | } |
1342 | ||
1343 | error = (ofproto->ofproto_class->set_bfd | |
1344 | ? ofproto->ofproto_class->set_bfd(ofport, cfg) | |
1345 | : EOPNOTSUPP); | |
1346 | if (error) { | |
94783c7c | 1347 | VLOG_WARN("%s: bfd configuration on port %"PRIu32" (%s) failed (%s)", |
ccc09689 | 1348 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), |
10a89ef0 | 1349 | ovs_strerror(error)); |
ccc09689 EJ |
1350 | } |
1351 | } | |
1352 | ||
8f5514fe AW |
1353 | /* Checks the status change of BFD on 'ofport'. |
1354 | * | |
1355 | * Returns true if 'ofproto_class' does not support 'bfd_status_changed'. */ | |
1356 | bool | |
1357 | ofproto_port_bfd_status_changed(struct ofproto *ofproto, ofp_port_t ofp_port) | |
1358 | { | |
1359 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1360 | return (ofport && ofproto->ofproto_class->bfd_status_changed | |
1361 | ? ofproto->ofproto_class->bfd_status_changed(ofport) | |
1362 | : true); | |
1363 | } | |
1364 | ||
88bf179a | 1365 | /* Populates 'status' with the status of BFD on 'ofport'. Returns 0 on |
8f5514fe AW |
1366 | * success. Returns a positive errno otherwise. Has no effect if 'ofp_port' |
1367 | * is not an OpenFlow port in 'ofproto'. | |
88bf179a AW |
1368 | * |
1369 | * The caller must provide and own '*status'. */ | |
ccc09689 | 1370 | int |
4e022ec0 | 1371 | ofproto_port_get_bfd_status(struct ofproto *ofproto, ofp_port_t ofp_port, |
ccc09689 EJ |
1372 | struct smap *status) |
1373 | { | |
1374 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1375 | return (ofport && ofproto->ofproto_class->get_bfd_status | |
1376 | ? ofproto->ofproto_class->get_bfd_status(ofport, status) | |
1377 | : EOPNOTSUPP); | |
1378 | } | |
1379 | ||
fa066f01 BP |
1380 | /* Checks the status of LACP negotiation for 'ofp_port' within ofproto. |
1381 | * Returns 1 if LACP partner information for 'ofp_port' is up-to-date, | |
1382 | * 0 if LACP partner information is not current (generally indicating a | |
1383 | * connectivity problem), or -1 if LACP is not enabled on 'ofp_port'. */ | |
1384 | int | |
4e022ec0 | 1385 | ofproto_port_is_lacp_current(struct ofproto *ofproto, ofp_port_t ofp_port) |
fa066f01 | 1386 | { |
abe529af BP |
1387 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1388 | return (ofport && ofproto->ofproto_class->port_is_lacp_current | |
1389 | ? ofproto->ofproto_class->port_is_lacp_current(ofport) | |
fa066f01 | 1390 | : -1); |
e7934396 | 1391 | } |
50b9699f NM |
1392 | |
1393 | int | |
91fc374a BP |
1394 | ofproto_port_get_lacp_stats(const struct ofport *port, |
1395 | struct lacp_member_stats *stats) | |
50b9699f NM |
1396 | { |
1397 | struct ofproto *ofproto = port->ofproto; | |
1398 | int error; | |
1399 | ||
1400 | if (ofproto->ofproto_class->port_get_lacp_stats) { | |
1401 | error = ofproto->ofproto_class->port_get_lacp_stats(port, stats); | |
1402 | } else { | |
1403 | error = EOPNOTSUPP; | |
1404 | } | |
1405 | ||
1406 | return error; | |
1407 | } | |
e7934396 | 1408 | \f |
fa066f01 | 1409 | /* Bundles. */ |
e7934396 | 1410 | |
abe529af BP |
1411 | /* Registers a "bundle" associated with client data pointer 'aux' in 'ofproto'. |
1412 | * A bundle is the same concept as a Port in OVSDB, that is, it consists of one | |
91fc374a BP |
1413 | * or more "member" devices (Interfaces, in OVSDB) along with a VLAN |
1414 | * configuration plus, if there is more than one member, a bonding | |
abe529af BP |
1415 | * configuration. |
1416 | * | |
1417 | * If 'aux' is already registered then this function updates its configuration | |
1418 | * to 's'. Otherwise, this function registers a new bundle. | |
1419 | * | |
1420 | * Bundles only affect the NXAST_AUTOPATH action and output to the OFPP_NORMAL | |
1421 | * port. */ | |
1422 | int | |
1423 | ofproto_bundle_register(struct ofproto *ofproto, void *aux, | |
1424 | const struct ofproto_bundle_settings *s) | |
fa066f01 | 1425 | { |
abe529af BP |
1426 | return (ofproto->ofproto_class->bundle_set |
1427 | ? ofproto->ofproto_class->bundle_set(ofproto, aux, s) | |
1428 | : EOPNOTSUPP); | |
fa066f01 BP |
1429 | } |
1430 | ||
abe529af BP |
1431 | /* Unregisters the bundle registered on 'ofproto' with auxiliary data 'aux'. |
1432 | * If no such bundle has been registered, this has no effect. */ | |
1433 | int | |
1434 | ofproto_bundle_unregister(struct ofproto *ofproto, void *aux) | |
e7934396 | 1435 | { |
abe529af | 1436 | return ofproto_bundle_register(ofproto, aux, NULL); |
e7934396 | 1437 | } |
fa066f01 | 1438 | |
e7934396 | 1439 | \f |
abe529af BP |
1440 | /* Registers a mirror associated with client data pointer 'aux' in 'ofproto'. |
1441 | * If 'aux' is already registered then this function updates its configuration | |
c06bba01 | 1442 | * to 's'. Otherwise, this function registers a new mirror. */ |
abe529af BP |
1443 | int |
1444 | ofproto_mirror_register(struct ofproto *ofproto, void *aux, | |
1445 | const struct ofproto_mirror_settings *s) | |
064af421 | 1446 | { |
abe529af BP |
1447 | return (ofproto->ofproto_class->mirror_set |
1448 | ? ofproto->ofproto_class->mirror_set(ofproto, aux, s) | |
1449 | : EOPNOTSUPP); | |
064af421 BP |
1450 | } |
1451 | ||
abe529af BP |
1452 | /* Unregisters the mirror registered on 'ofproto' with auxiliary data 'aux'. |
1453 | * If no mirror has been registered, this has no effect. */ | |
1454 | int | |
1455 | ofproto_mirror_unregister(struct ofproto *ofproto, void *aux) | |
064af421 | 1456 | { |
abe529af | 1457 | return ofproto_mirror_register(ofproto, aux, NULL); |
064af421 BP |
1458 | } |
1459 | ||
9d24de3b JP |
1460 | /* Retrieves statistics from mirror associated with client data pointer |
1461 | * 'aux' in 'ofproto'. Stores packet and byte counts in 'packets' and | |
1462 | * 'bytes', respectively. If a particular counters is not supported, | |
0477baa9 DF |
1463 | * the appropriate argument is set to UINT64_MAX. |
1464 | */ | |
9d24de3b JP |
1465 | int |
1466 | ofproto_mirror_get_stats(struct ofproto *ofproto, void *aux, | |
1467 | uint64_t *packets, uint64_t *bytes) | |
1468 | { | |
1469 | if (!ofproto->ofproto_class->mirror_get_stats) { | |
1470 | *packets = *bytes = UINT64_MAX; | |
1471 | return EOPNOTSUPP; | |
1472 | } | |
1473 | ||
1474 | return ofproto->ofproto_class->mirror_get_stats(ofproto, aux, | |
1475 | packets, bytes); | |
1476 | } | |
1477 | ||
abe529af BP |
1478 | /* Configures the VLANs whose bits are set to 1 in 'flood_vlans' as VLANs on |
1479 | * which all packets are flooded, instead of using MAC learning. If | |
1480 | * 'flood_vlans' is NULL, then MAC learning applies to all VLANs. | |
1481 | * | |
1482 | * Flood VLANs affect only the treatment of packets output to the OFPP_NORMAL | |
1483 | * port. */ | |
1484 | int | |
1485 | ofproto_set_flood_vlans(struct ofproto *ofproto, unsigned long *flood_vlans) | |
abdfe474 | 1486 | { |
abe529af BP |
1487 | return (ofproto->ofproto_class->set_flood_vlans |
1488 | ? ofproto->ofproto_class->set_flood_vlans(ofproto, flood_vlans) | |
1489 | : EOPNOTSUPP); | |
abdfe474 JP |
1490 | } |
1491 | ||
abe529af BP |
1492 | /* Returns true if 'aux' is a registered bundle that is currently in use as the |
1493 | * output for a mirror. */ | |
1494 | bool | |
b4affc74 | 1495 | ofproto_is_mirror_output_bundle(const struct ofproto *ofproto, void *aux) |
abe529af BP |
1496 | { |
1497 | return (ofproto->ofproto_class->is_mirror_output_bundle | |
1498 | ? ofproto->ofproto_class->is_mirror_output_bundle(ofproto, aux) | |
1499 | : false); | |
1500 | } | |
1501 | \f | |
254750ce BP |
1502 | /* Configuration of OpenFlow tables. */ |
1503 | ||
1504 | /* Returns the number of OpenFlow tables in 'ofproto'. */ | |
1505 | int | |
1506 | ofproto_get_n_tables(const struct ofproto *ofproto) | |
1507 | { | |
1508 | return ofproto->n_tables; | |
1509 | } | |
1510 | ||
adcf00ba AZ |
1511 | /* Returns the number of Controller visible OpenFlow tables |
1512 | * in 'ofproto'. This number will exclude Hidden tables. | |
1513 | * This funtion's return value should be less or equal to that of | |
1514 | * ofproto_get_n_tables() . */ | |
1515 | uint8_t | |
1516 | ofproto_get_n_visible_tables(const struct ofproto *ofproto) | |
1517 | { | |
1518 | uint8_t n = ofproto->n_tables; | |
1519 | ||
1520 | /* Count only non-hidden tables in the number of tables. (Hidden tables, | |
1521 | * if present, are always at the end.) */ | |
1522 | while(n && (ofproto->tables[n - 1].flags & OFTABLE_HIDDEN)) { | |
1523 | n--; | |
1524 | } | |
1525 | ||
1526 | return n; | |
1527 | } | |
1528 | ||
254750ce BP |
1529 | /* Configures the OpenFlow table in 'ofproto' with id 'table_id' with the |
1530 | * settings from 's'. 'table_id' must be in the range 0 through the number of | |
1531 | * OpenFlow tables in 'ofproto' minus 1, inclusive. | |
1532 | * | |
1533 | * For read-only tables, only the name may be configured. */ | |
1534 | void | |
1535 | ofproto_configure_table(struct ofproto *ofproto, int table_id, | |
1536 | const struct ofproto_table_settings *s) | |
1537 | { | |
1538 | struct oftable *table; | |
1539 | ||
cb22974d | 1540 | ovs_assert(table_id >= 0 && table_id < ofproto->n_tables); |
254750ce BP |
1541 | table = &ofproto->tables[table_id]; |
1542 | ||
4e413ac8 | 1543 | oftable_set_name(table, s->name, 2); |
254750ce BP |
1544 | |
1545 | if (table->flags & OFTABLE_READONLY) { | |
1546 | return; | |
1547 | } | |
1548 | ||
f358a2cb JR |
1549 | if (classifier_set_prefix_fields(&table->cls, |
1550 | s->prefix_fields, s->n_prefix_fields)) { | |
1551 | /* XXX: Trigger revalidation. */ | |
1552 | } | |
834fe5cb BP |
1553 | |
1554 | ovs_mutex_lock(&ofproto_mutex); | |
82c22d34 BP |
1555 | unsigned int new_eviction = (s->enable_eviction |
1556 | ? table->eviction | EVICTION_CLIENT | |
1557 | : table->eviction & ~EVICTION_CLIENT); | |
1558 | oftable_configure_eviction(table, new_eviction, s->groups, s->n_groups); | |
7394b8fb | 1559 | table->max_flows = s->max_flows; |
6787a49f | 1560 | evict_rules_from_table(table); |
834fe5cb | 1561 | ovs_mutex_unlock(&ofproto_mutex); |
254750ce BP |
1562 | } |
1563 | \f | |
81e2083f BP |
1564 | bool |
1565 | ofproto_has_snoops(const struct ofproto *ofproto) | |
1566 | { | |
1567 | return connmgr_has_snoops(ofproto->connmgr); | |
1568 | } | |
1569 | ||
064af421 | 1570 | void |
81e2083f | 1571 | ofproto_get_snoops(const struct ofproto *ofproto, struct sset *snoops) |
064af421 | 1572 | { |
19a87e36 | 1573 | connmgr_get_snoops(ofproto->connmgr, snoops); |
064af421 BP |
1574 | } |
1575 | ||
a73fcd71 | 1576 | /* Deletes 'rule' from 'ofproto'. |
8037acb4 | 1577 | * |
b74cb5d8 BP |
1578 | * Within an ofproto implementation, this function allows an ofproto |
1579 | * implementation to destroy any rules that remain when its ->destruct() | |
1580 | * function is called. This function is not suitable for use elsewhere in an | |
1581 | * ofproto implementation. | |
1582 | * | |
b74cb5d8 | 1583 | * This function implements steps 4.4 and 4.5 in the section titled "Rule Life |
8b81d1ef | 1584 | * Cycle" in ofproto-provider.h. */ |
b74cb5d8 | 1585 | void |
8b81d1ef | 1586 | ofproto_rule_delete(struct ofproto *ofproto, struct rule *rule) |
15aaf599 | 1587 | OVS_EXCLUDED(ofproto_mutex) |
7ee20df1 | 1588 | { |
834fe5cb BP |
1589 | /* This skips the ofmonitor and flow-removed notifications because the |
1590 | * switch is being deleted and any OpenFlow channels have been or soon will | |
1591 | * be killed. */ | |
15aaf599 | 1592 | ovs_mutex_lock(&ofproto_mutex); |
39c94593 | 1593 | |
30d0452c | 1594 | if (rule->state == RULE_INSERTED) { |
39c94593 | 1595 | /* Make sure there is no postponed removal of the rule. */ |
44e0c35d | 1596 | ovs_assert(cls_rule_visible_in_version(&rule->cr, OVS_VERSION_MAX)); |
39c94593 | 1597 | |
46ab60bf BP |
1598 | classifier_remove_assert(&rule->ofproto->tables[rule->table_id].cls, |
1599 | &rule->cr); | |
39c94593 | 1600 | ofproto_rule_remove__(rule->ofproto, rule); |
1fc71871 JR |
1601 | if (ofproto->ofproto_class->rule_delete) { |
1602 | ofproto->ofproto_class->rule_delete(rule); | |
1603 | } | |
25010c68 JR |
1604 | |
1605 | /* This may not be the last reference to the rule. */ | |
39c94593 JR |
1606 | ofproto_rule_unref(rule); |
1607 | } | |
15aaf599 | 1608 | ovs_mutex_unlock(&ofproto_mutex); |
8037acb4 BP |
1609 | } |
1610 | ||
1611 | static void | |
79eadafe | 1612 | ofproto_flush__(struct ofproto *ofproto, bool del) |
15aaf599 | 1613 | OVS_EXCLUDED(ofproto_mutex) |
8037acb4 | 1614 | { |
d0918789 | 1615 | struct oftable *table; |
7ee20df1 | 1616 | |
3948503a | 1617 | /* This will flush all datapath flows. */ |
79eadafe | 1618 | if (del && ofproto->ofproto_class->flush) { |
7ee20df1 BP |
1619 | ofproto->ofproto_class->flush(ofproto); |
1620 | } | |
1621 | ||
3948503a JR |
1622 | /* XXX: There is a small race window here, where new datapath flows can be |
1623 | * created by upcall handlers based on the existing flow table. We can not | |
1624 | * call ofproto class flush while holding 'ofproto_mutex' to prevent this, | |
1625 | * as then we could deadlock on syncing with the handler threads waiting on | |
1626 | * the same mutex. */ | |
1627 | ||
15aaf599 | 1628 | ovs_mutex_lock(&ofproto_mutex); |
b772ded8 | 1629 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
802f84ff | 1630 | struct rule_collection rules; |
78c8df12 | 1631 | struct rule *rule; |
7ee20df1 | 1632 | |
5c67e4af BP |
1633 | if (table->flags & OFTABLE_HIDDEN) { |
1634 | continue; | |
1635 | } | |
1636 | ||
802f84ff JR |
1637 | rule_collection_init(&rules); |
1638 | ||
de4ad4a2 | 1639 | CLS_FOR_EACH (rule, cr, &table->cls) { |
802f84ff | 1640 | rule_collection_add(&rules, rule); |
7ee20df1 | 1641 | } |
802f84ff | 1642 | delete_flows__(&rules, OFPRR_DELETE, NULL); |
7ee20df1 | 1643 | } |
d3b84833 BP |
1644 | ofproto_group_delete_all__(ofproto); |
1645 | meter_delete_all(ofproto); | |
3948503a JR |
1646 | /* XXX: Concurrent handler threads may insert new learned flows based on |
1647 | * learn actions of the now deleted flows right after we release | |
1648 | * 'ofproto_mutex'. */ | |
15aaf599 | 1649 | ovs_mutex_unlock(&ofproto_mutex); |
7ee20df1 BP |
1650 | } |
1651 | ||
abe529af BP |
1652 | static void |
1653 | ofproto_destroy__(struct ofproto *ofproto) | |
15aaf599 | 1654 | OVS_EXCLUDED(ofproto_mutex) |
abe529af | 1655 | { |
d0918789 | 1656 | struct oftable *table; |
6c1491fb | 1657 | |
db88b35c | 1658 | cmap_destroy(&ofproto->groups); |
7395c052 | 1659 | |
6d917cd2 | 1660 | ovs_mutex_lock(&ofproto_mutex); |
abe529af | 1661 | hmap_remove(&all_ofprotos, &ofproto->hmap_node); |
6d917cd2 | 1662 | ovs_mutex_unlock(&ofproto_mutex); |
04f48a68 | 1663 | |
abe529af | 1664 | free(ofproto->name); |
955a7127 | 1665 | free(ofproto->type); |
abe529af BP |
1666 | free(ofproto->mfr_desc); |
1667 | free(ofproto->hw_desc); | |
1668 | free(ofproto->sw_desc); | |
1669 | free(ofproto->serial_desc); | |
1670 | free(ofproto->dp_desc); | |
abe529af | 1671 | hmap_destroy(&ofproto->ports); |
fdcea803 | 1672 | hmap_destroy(&ofproto->ofport_usage); |
abe529af | 1673 | shash_destroy(&ofproto->port_by_name); |
e1b1d06a | 1674 | simap_destroy(&ofproto->ofp_requests); |
6c1491fb | 1675 | |
b772ded8 | 1676 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
d0918789 | 1677 | oftable_destroy(table); |
6c1491fb BP |
1678 | } |
1679 | free(ofproto->tables); | |
fa066f01 | 1680 | |
d3b84833 BP |
1681 | hmap_destroy(&ofproto->meters); |
1682 | ||
a70436a3 YHW |
1683 | ovs_mutex_lock(&ofproto->vl_mff_map.mutex); |
1684 | mf_vl_mff_map_clear(&ofproto->vl_mff_map, true); | |
1685 | ovs_mutex_unlock(&ofproto->vl_mff_map.mutex); | |
1686 | cmap_destroy(&ofproto->vl_mff_map.cmap); | |
1687 | ovs_mutex_destroy(&ofproto->vl_mff_map.mutex); | |
1688 | tun_metadata_free(ovsrcu_get_protected(struct tun_table *, | |
1689 | &ofproto->metadata_tab)); | |
1690 | ||
1406c79b BP |
1691 | ovs_assert(hindex_is_empty(&ofproto->cookies)); |
1692 | hindex_destroy(&ofproto->cookies); | |
1693 | ||
35f48b8b BP |
1694 | ovs_assert(hmap_is_empty(&ofproto->learned_cookies)); |
1695 | hmap_destroy(&ofproto->learned_cookies); | |
1696 | ||
abe529af BP |
1697 | ofproto->ofproto_class->dealloc(ofproto); |
1698 | } | |
fa066f01 | 1699 | |
39c94593 JR |
1700 | /* Destroying rules is doubly deferred, must have 'ofproto' around for them. |
1701 | * - 1st we defer the removal of the rules from the classifier | |
1702 | * - 2nd we defer the actual destruction of the rules. */ | |
1703 | static void | |
1704 | ofproto_destroy_defer__(struct ofproto *ofproto) | |
1705 | OVS_EXCLUDED(ofproto_mutex) | |
1706 | { | |
1707 | ovsrcu_postpone(ofproto_destroy__, ofproto); | |
1708 | } | |
1709 | ||
064af421 | 1710 | void |
9aad5a5a | 1711 | ofproto_destroy(struct ofproto *p, bool del) |
15aaf599 | 1712 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 1713 | { |
ca0f572c | 1714 | struct ofport *ofport, *next_ofport; |
4ec3d7c7 | 1715 | struct ofport_usage *usage; |
064af421 BP |
1716 | |
1717 | if (!p) { | |
1718 | return; | |
1719 | } | |
1720 | ||
79eadafe | 1721 | ofproto_flush__(p, del); |
4e8e4213 | 1722 | HMAP_FOR_EACH_SAFE (ofport, next_ofport, hmap_node, &p->ports) { |
9aad5a5a | 1723 | ofport_destroy(ofport, del); |
064af421 | 1724 | } |
064af421 | 1725 | |
4ec3d7c7 | 1726 | HMAP_FOR_EACH_POP (usage, hmap_node, &p->ofport_usage) { |
fdcea803 GS |
1727 | free(usage); |
1728 | } | |
1729 | ||
fe13ccdc | 1730 | p->ofproto_class->destruct(p, del); |
58f19539 DDP |
1731 | |
1732 | /* We should not postpone this because it involves deleting a listening | |
25010c68 JR |
1733 | * socket which we may want to reopen soon. 'connmgr' may be used by other |
1734 | * threads only if they take the ofproto_mutex and read a non-NULL | |
1735 | * 'ofproto->connmgr'. */ | |
1736 | ovs_mutex_lock(&ofproto_mutex); | |
58f19539 | 1737 | connmgr_destroy(p->connmgr); |
25010c68 JR |
1738 | p->connmgr = NULL; |
1739 | ovs_mutex_unlock(&ofproto_mutex); | |
58f19539 | 1740 | |
f416c8d6 | 1741 | /* Destroying rules is deferred, must have 'ofproto' around for them. */ |
39c94593 | 1742 | ovsrcu_postpone(ofproto_destroy_defer__, p); |
064af421 BP |
1743 | } |
1744 | ||
abe529af BP |
1745 | /* Destroys the datapath with the respective 'name' and 'type'. With the Linux |
1746 | * kernel datapath, for example, this destroys the datapath in the kernel, and | |
1747 | * with the netdev-based datapath, it tears down the data structures that | |
1748 | * represent the datapath. | |
1749 | * | |
1750 | * The datapath should not be currently open as an ofproto. */ | |
064af421 | 1751 | int |
abe529af | 1752 | ofproto_delete(const char *name, const char *type) |
064af421 | 1753 | { |
abe529af BP |
1754 | const struct ofproto_class *class = ofproto_class_find__(type); |
1755 | return (!class ? EAFNOSUPPORT | |
1756 | : !class->del ? EACCES | |
1757 | : class->del(type, name)); | |
064af421 BP |
1758 | } |
1759 | ||
e9e28be3 BP |
1760 | static void |
1761 | process_port_change(struct ofproto *ofproto, int error, char *devname) | |
1762 | { | |
1763 | if (error == ENOBUFS) { | |
1764 | reinit_ports(ofproto); | |
1765 | } else if (!error) { | |
1766 | update_port(ofproto, devname); | |
1767 | free(devname); | |
1768 | } | |
1769 | } | |
1770 | ||
11a574a7 JP |
1771 | int |
1772 | ofproto_type_run(const char *datapath_type) | |
1773 | { | |
1774 | const struct ofproto_class *class; | |
1775 | int error; | |
1776 | ||
1777 | datapath_type = ofproto_normalize_type(datapath_type); | |
1778 | class = ofproto_class_find__(datapath_type); | |
1779 | ||
1780 | error = class->type_run ? class->type_run(datapath_type) : 0; | |
1781 | if (error && error != EAGAIN) { | |
1782 | VLOG_ERR_RL(&rl, "%s: type_run failed (%s)", | |
10a89ef0 | 1783 | datapath_type, ovs_strerror(error)); |
11a574a7 JP |
1784 | } |
1785 | return error; | |
1786 | } | |
1787 | ||
11a574a7 JP |
1788 | void |
1789 | ofproto_type_wait(const char *datapath_type) | |
1790 | { | |
1791 | const struct ofproto_class *class; | |
1792 | ||
1793 | datapath_type = ofproto_normalize_type(datapath_type); | |
1794 | class = ofproto_class_find__(datapath_type); | |
1795 | ||
1796 | if (class->type_wait) { | |
1797 | class->type_wait(datapath_type); | |
1798 | } | |
1799 | } | |
1800 | ||
064af421 | 1801 | int |
abe529af | 1802 | ofproto_run(struct ofproto *p) |
064af421 | 1803 | { |
064af421 | 1804 | int error; |
da4a6191 | 1805 | uint64_t new_seq; |
064af421 | 1806 | |
abe529af | 1807 | error = p->ofproto_class->run(p); |
5fcc0d00 | 1808 | if (error && error != EAGAIN) { |
10a89ef0 | 1809 | VLOG_ERR_RL(&rl, "%s: run failed (%s)", p->name, ovs_strerror(error)); |
149f577a JG |
1810 | } |
1811 | ||
448c2fa8 EJ |
1812 | /* Restore the eviction group heap invariant occasionally. */ |
1813 | if (p->eviction_group_timer < time_msec()) { | |
1814 | size_t i; | |
1815 | ||
1816 | p->eviction_group_timer = time_msec() + 1000; | |
1817 | ||
1818 | for (i = 0; i < p->n_tables; i++) { | |
1819 | struct oftable *table = &p->tables[i]; | |
1820 | struct eviction_group *evg; | |
448c2fa8 EJ |
1821 | struct rule *rule; |
1822 | ||
82c22d34 | 1823 | if (!table->eviction) { |
448c2fa8 EJ |
1824 | continue; |
1825 | } | |
1826 | ||
d79e3d70 | 1827 | if (table->n_flows > 100000) { |
1a9bb326 EJ |
1828 | static struct vlog_rate_limit count_rl = |
1829 | VLOG_RATE_LIMIT_INIT(1, 1); | |
1830 | VLOG_WARN_RL(&count_rl, "Table %"PRIuSIZE" has an excessive" | |
d79e3d70 | 1831 | " number of rules: %d", i, table->n_flows); |
1a9bb326 EJ |
1832 | } |
1833 | ||
15aaf599 | 1834 | ovs_mutex_lock(&ofproto_mutex); |
5f0476ce | 1835 | CLS_FOR_EACH (rule, cr, &table->cls) { |
6d56c1f1 K |
1836 | if (rule->idle_timeout || rule->hard_timeout) { |
1837 | if (!rule->eviction_group) { | |
1838 | eviction_group_add_rule(rule); | |
1839 | } else { | |
1840 | heap_raw_change(&rule->evg_node, | |
1841 | rule_eviction_priority(p, rule)); | |
1842 | } | |
448c2fa8 EJ |
1843 | } |
1844 | } | |
6d56c1f1 K |
1845 | |
1846 | HEAP_FOR_EACH (evg, size_node, &table->eviction_groups_by_size) { | |
1847 | heap_rebuild(&evg->rules); | |
1848 | } | |
15aaf599 | 1849 | ovs_mutex_unlock(&ofproto_mutex); |
448c2fa8 EJ |
1850 | } |
1851 | } | |
1852 | ||
5bf0e941 | 1853 | if (p->ofproto_class->port_poll) { |
7436ed80 BP |
1854 | char *devname; |
1855 | ||
5bf0e941 BP |
1856 | while ((error = p->ofproto_class->port_poll(p, &devname)) != EAGAIN) { |
1857 | process_port_change(p, error, devname); | |
064af421 | 1858 | } |
e9e28be3 | 1859 | } |
031d8bff | 1860 | |
da4a6191 JS |
1861 | new_seq = seq_read(connectivity_seq_get()); |
1862 | if (new_seq != p->change_seq) { | |
1863 | struct sset devnames; | |
1864 | const char *devname; | |
1865 | struct ofport *ofport; | |
1866 | ||
1867 | /* Update OpenFlow port status for any port whose netdev has changed. | |
1868 | * | |
1869 | * Refreshing a given 'ofport' can cause an arbitrary ofport to be | |
1870 | * destroyed, so it's not safe to update ports directly from the | |
1871 | * HMAP_FOR_EACH loop, or even to use HMAP_FOR_EACH_SAFE. Instead, we | |
1872 | * need this two-phase approach. */ | |
1873 | sset_init(&devnames); | |
1874 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
61501798 AW |
1875 | uint64_t port_change_seq; |
1876 | ||
1877 | port_change_seq = netdev_get_change_seq(ofport->netdev); | |
1878 | if (ofport->change_seq != port_change_seq) { | |
1879 | ofport->change_seq = port_change_seq; | |
1880 | sset_add(&devnames, netdev_get_name(ofport->netdev)); | |
1881 | } | |
031d8bff | 1882 | } |
da4a6191 JS |
1883 | SSET_FOR_EACH (devname, &devnames) { |
1884 | update_port(p, devname); | |
1885 | } | |
1886 | sset_destroy(&devnames); | |
1887 | ||
1888 | p->change_seq = new_seq; | |
064af421 BP |
1889 | } |
1890 | ||
834fe5cb | 1891 | connmgr_run(p->connmgr, handle_openflow); |
064af421 | 1892 | |
5fcc0d00 BP |
1893 | return error; |
1894 | } | |
1895 | ||
064af421 BP |
1896 | void |
1897 | ofproto_wait(struct ofproto *p) | |
1898 | { | |
abe529af | 1899 | p->ofproto_class->wait(p); |
5bf0e941 BP |
1900 | if (p->ofproto_class->port_poll_wait) { |
1901 | p->ofproto_class->port_poll_wait(p); | |
e7934396 | 1902 | } |
da4a6191 | 1903 | seq_wait(connectivity_seq_get(), p->change_seq); |
834fe5cb | 1904 | connmgr_wait(p->connmgr); |
064af421 BP |
1905 | } |
1906 | ||
064af421 BP |
1907 | bool |
1908 | ofproto_is_alive(const struct ofproto *p) | |
1909 | { | |
44810e6d VDA |
1910 | return (connmgr_has_controllers(p->connmgr) |
1911 | && connmgr_is_any_controller_admitted(p->connmgr)); | |
064af421 BP |
1912 | } |
1913 | ||
0d085684 BP |
1914 | /* Adds some memory usage statistics for 'ofproto' into 'usage', for use with |
1915 | * memory_report(). */ | |
1916 | void | |
1917 | ofproto_get_memory_usage(const struct ofproto *ofproto, struct simap *usage) | |
1918 | { | |
1919 | const struct oftable *table; | |
1920 | unsigned int n_rules; | |
1921 | ||
1922 | simap_increase(usage, "ports", hmap_count(&ofproto->ports)); | |
15aaf599 | 1923 | |
0d085684 BP |
1924 | n_rules = 0; |
1925 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { | |
d79e3d70 | 1926 | n_rules += table->n_flows; |
0d085684 BP |
1927 | } |
1928 | simap_increase(usage, "rules", n_rules); | |
1929 | ||
1930 | if (ofproto->ofproto_class->get_memory_usage) { | |
1931 | ofproto->ofproto_class->get_memory_usage(ofproto, usage); | |
1932 | } | |
1933 | ||
1934 | connmgr_get_memory_usage(ofproto->connmgr, usage); | |
1935 | } | |
1936 | ||
1c030aa5 EJ |
1937 | void |
1938 | ofproto_type_get_memory_usage(const char *datapath_type, struct simap *usage) | |
1939 | { | |
1940 | const struct ofproto_class *class; | |
1941 | ||
1942 | datapath_type = ofproto_normalize_type(datapath_type); | |
1943 | class = ofproto_class_find__(datapath_type); | |
1944 | ||
1945 | if (class && class->type_get_memory_usage) { | |
1946 | class->type_get_memory_usage(datapath_type, usage); | |
1947 | } | |
1948 | } | |
1949 | ||
bffc0589 | 1950 | void |
2cdcb898 | 1951 | ofproto_get_ofproto_controller_info(const struct ofproto *ofproto, |
bffc0589 AE |
1952 | struct shash *info) |
1953 | { | |
19a87e36 | 1954 | connmgr_get_controller_info(ofproto->connmgr, info); |
bffc0589 AE |
1955 | } |
1956 | ||
1957 | void | |
1958 | ofproto_free_ofproto_controller_info(struct shash *info) | |
1959 | { | |
72ba2ed3 | 1960 | connmgr_free_controller_info(info); |
bffc0589 AE |
1961 | } |
1962 | ||
c66be90b BP |
1963 | const char * |
1964 | ofconn_type_to_string(enum ofconn_type type) | |
1965 | { | |
1966 | return type == OFCONN_PRIMARY ? "primary" : "service"; | |
1967 | } | |
1968 | ||
b5827b24 BP |
1969 | /* Makes a deep copy of 'old' into 'port'. */ |
1970 | void | |
1971 | ofproto_port_clone(struct ofproto_port *port, const struct ofproto_port *old) | |
1972 | { | |
1973 | port->name = xstrdup(old->name); | |
1974 | port->type = xstrdup(old->type); | |
1975 | port->ofp_port = old->ofp_port; | |
1976 | } | |
1977 | ||
1978 | /* Frees memory allocated to members of 'ofproto_port'. | |
3a6ccc8c | 1979 | * |
b5827b24 BP |
1980 | * Do not call this function on an ofproto_port obtained from |
1981 | * ofproto_port_dump_next(): that function retains ownership of the data in the | |
1982 | * ofproto_port. */ | |
1983 | void | |
1984 | ofproto_port_destroy(struct ofproto_port *ofproto_port) | |
1985 | { | |
1986 | free(ofproto_port->name); | |
1987 | free(ofproto_port->type); | |
1988 | } | |
1989 | ||
b5827b24 | 1990 | /* Initializes 'dump' to begin dumping the ports in an ofproto. |
3a6ccc8c | 1991 | * |
b5827b24 BP |
1992 | * This function provides no status indication. An error status for the entire |
1993 | * dump operation is provided when it is completed by calling | |
1994 | * ofproto_port_dump_done(). | |
1995 | */ | |
1996 | void | |
1997 | ofproto_port_dump_start(struct ofproto_port_dump *dump, | |
1998 | const struct ofproto *ofproto) | |
1999 | { | |
abe529af BP |
2000 | dump->ofproto = ofproto; |
2001 | dump->error = ofproto->ofproto_class->port_dump_start(ofproto, | |
2002 | &dump->state); | |
b5827b24 BP |
2003 | } |
2004 | ||
2005 | /* Attempts to retrieve another port from 'dump', which must have been created | |
2006 | * with ofproto_port_dump_start(). On success, stores a new ofproto_port into | |
2007 | * 'port' and returns true. On failure, returns false. | |
2008 | * | |
2009 | * Failure might indicate an actual error or merely that the last port has been | |
2010 | * dumped. An error status for the entire dump operation is provided when it | |
2011 | * is completed by calling ofproto_port_dump_done(). | |
2012 | * | |
2013 | * The ofproto owns the data stored in 'port'. It will remain valid until at | |
2014 | * least the next time 'dump' is passed to ofproto_port_dump_next() or | |
2015 | * ofproto_port_dump_done(). */ | |
2016 | bool | |
2017 | ofproto_port_dump_next(struct ofproto_port_dump *dump, | |
2018 | struct ofproto_port *port) | |
2019 | { | |
abe529af BP |
2020 | const struct ofproto *ofproto = dump->ofproto; |
2021 | ||
2022 | if (dump->error) { | |
2023 | return false; | |
2024 | } | |
b5827b24 | 2025 | |
abe529af BP |
2026 | dump->error = ofproto->ofproto_class->port_dump_next(ofproto, dump->state, |
2027 | port); | |
2028 | if (dump->error) { | |
2029 | ofproto->ofproto_class->port_dump_done(ofproto, dump->state); | |
2030 | return false; | |
b5827b24 | 2031 | } |
abe529af | 2032 | return true; |
b5827b24 BP |
2033 | } |
2034 | ||
2035 | /* Completes port table dump operation 'dump', which must have been created | |
2036 | * with ofproto_port_dump_start(). Returns 0 if the dump operation was | |
2037 | * error-free, otherwise a positive errno value describing the problem. */ | |
3a6ccc8c | 2038 | int |
b5827b24 | 2039 | ofproto_port_dump_done(struct ofproto_port_dump *dump) |
3a6ccc8c | 2040 | { |
abe529af BP |
2041 | const struct ofproto *ofproto = dump->ofproto; |
2042 | if (!dump->error) { | |
2043 | dump->error = ofproto->ofproto_class->port_dump_done(ofproto, | |
2044 | dump->state); | |
2045 | } | |
2046 | return dump->error == EOF ? 0 : dump->error; | |
b5827b24 BP |
2047 | } |
2048 | ||
c381bca5 BP |
2049 | /* Returns the type to pass to netdev_open() when 'ofproto' has a port of type |
2050 | * 'port_type', for a few special cases when a netdev type differs from a port | |
2051 | * type. For example, when using the userspace datapath, a port of type | |
2052 | * "internal" needs to be opened as "tap". | |
0aeaabc8 JP |
2053 | * |
2054 | * Returns either 'type' itself or a string literal, which must not be | |
2055 | * freed. */ | |
2056 | const char * | |
c381bca5 | 2057 | ofproto_port_open_type(const struct ofproto *ofproto, const char *port_type) |
0aeaabc8 | 2058 | { |
c381bca5 BP |
2059 | return (ofproto->ofproto_class->port_open_type |
2060 | ? ofproto->ofproto_class->port_open_type(ofproto->type, port_type) | |
0aeaabc8 JP |
2061 | : port_type); |
2062 | } | |
2063 | ||
81816a5f JP |
2064 | /* Attempts to add 'netdev' as a port on 'ofproto'. If 'ofp_portp' is |
2065 | * non-null and '*ofp_portp' is not OFPP_NONE, attempts to use that as | |
2066 | * the port's OpenFlow port number. | |
2067 | * | |
2068 | * If successful, returns 0 and sets '*ofp_portp' to the new port's | |
2069 | * OpenFlow port number (if 'ofp_portp' is non-null). On failure, | |
2070 | * returns a positive errno value and sets '*ofp_portp' to OFPP_NONE (if | |
2071 | * 'ofp_portp' is non-null). */ | |
b5827b24 BP |
2072 | int |
2073 | ofproto_port_add(struct ofproto *ofproto, struct netdev *netdev, | |
4e022ec0 | 2074 | ofp_port_t *ofp_portp) |
b5827b24 | 2075 | { |
4e022ec0 | 2076 | ofp_port_t ofp_port = ofp_portp ? *ofp_portp : OFPP_NONE; |
3a6ccc8c BP |
2077 | int error; |
2078 | ||
e1b1d06a | 2079 | error = ofproto->ofproto_class->port_add(ofproto, netdev); |
1fa24dea | 2080 | if (!error) { |
e1b1d06a JP |
2081 | const char *netdev_name = netdev_get_name(netdev); |
2082 | ||
4e022ec0 AW |
2083 | simap_put(&ofproto->ofp_requests, netdev_name, |
2084 | ofp_to_u16(ofp_port)); | |
01c77073 | 2085 | error = update_port(ofproto, netdev_name); |
1fa24dea | 2086 | } |
b5827b24 | 2087 | if (ofp_portp) { |
17f69db5 BP |
2088 | *ofp_portp = OFPP_NONE; |
2089 | if (!error) { | |
2090 | struct ofproto_port ofproto_port; | |
2091 | ||
2092 | error = ofproto_port_query_by_name(ofproto, | |
2093 | netdev_get_name(netdev), | |
2094 | &ofproto_port); | |
2095 | if (!error) { | |
2096 | *ofp_portp = ofproto_port.ofp_port; | |
2097 | ofproto_port_destroy(&ofproto_port); | |
2098 | } | |
2099 | } | |
3a6ccc8c BP |
2100 | } |
2101 | return error; | |
2102 | } | |
2103 | ||
b5827b24 BP |
2104 | /* Looks up a port named 'devname' in 'ofproto'. On success, returns 0 and |
2105 | * initializes '*port' appropriately; on failure, returns a positive errno | |
2106 | * value. | |
2107 | * | |
abe529af | 2108 | * The caller owns the data in 'ofproto_port' and must free it with |
b5827b24 BP |
2109 | * ofproto_port_destroy() when it is no longer needed. */ |
2110 | int | |
2111 | ofproto_port_query_by_name(const struct ofproto *ofproto, const char *devname, | |
2112 | struct ofproto_port *port) | |
a4e2e1f2 | 2113 | { |
b5827b24 BP |
2114 | int error; |
2115 | ||
abe529af BP |
2116 | error = ofproto->ofproto_class->port_query_by_name(ofproto, devname, port); |
2117 | if (error) { | |
2118 | memset(port, 0, sizeof *port); | |
b5827b24 BP |
2119 | } |
2120 | return error; | |
a4e2e1f2 EJ |
2121 | } |
2122 | ||
b5827b24 | 2123 | /* Deletes port number 'ofp_port' from the datapath for 'ofproto'. |
3a6ccc8c | 2124 | * Returns 0 if successful, otherwise a positive errno. */ |
064af421 | 2125 | int |
4e022ec0 | 2126 | ofproto_port_del(struct ofproto *ofproto, ofp_port_t ofp_port) |
064af421 | 2127 | { |
abe529af | 2128 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1264ec95 | 2129 | const char *name = ofport ? netdev_get_name(ofport->netdev) : "<unknown>"; |
e1b1d06a | 2130 | struct simap_node *ofp_request_node; |
3cf10406 | 2131 | int error; |
cdee00fd | 2132 | |
e1b1d06a JP |
2133 | ofp_request_node = simap_find(&ofproto->ofp_requests, name); |
2134 | if (ofp_request_node) { | |
2135 | simap_delete(&ofproto->ofp_requests, ofp_request_node); | |
2136 | } | |
2137 | ||
abe529af | 2138 | error = ofproto->ofproto_class->port_del(ofproto, ofp_port); |
892815f5 | 2139 | if (!error && ofport) { |
1264ec95 BP |
2140 | /* 'name' is the netdev's name and update_port() is going to close the |
2141 | * netdev. Just in case update_port() refers to 'name' after it | |
3a6ccc8c BP |
2142 | * destroys 'ofport', make a copy of it around the update_port() |
2143 | * call. */ | |
2144 | char *devname = xstrdup(name); | |
2145 | update_port(ofproto, devname); | |
2146 | free(devname); | |
3cf10406 BP |
2147 | } |
2148 | return error; | |
064af421 BP |
2149 | } |
2150 | ||
91364d18 IM |
2151 | /* Refreshes datapath configuration of port number 'ofp_port' in 'ofproto'. |
2152 | * | |
2153 | * This function has no effect if 'ofproto' does not have a port 'ofp_port'. */ | |
2154 | void | |
2155 | ofproto_port_set_config(struct ofproto *ofproto, ofp_port_t ofp_port, | |
2156 | const struct smap *cfg) | |
2157 | { | |
2158 | struct ofport *ofport; | |
2159 | int error; | |
2160 | ||
2161 | ofport = ofproto_get_port(ofproto, ofp_port); | |
2162 | if (!ofport) { | |
94783c7c | 2163 | VLOG_WARN("%s: cannot configure datapath on nonexistent port %"PRIu32, |
91364d18 IM |
2164 | ofproto->name, ofp_port); |
2165 | return; | |
2166 | } | |
2167 | ||
2168 | error = (ofproto->ofproto_class->port_set_config | |
2169 | ? ofproto->ofproto_class->port_set_config(ofport, cfg) | |
2170 | : EOPNOTSUPP); | |
2171 | if (error) { | |
94783c7c | 2172 | VLOG_WARN("%s: datapath configuration on port %"PRIu32 |
91364d18 IM |
2173 | " (%s) failed (%s)", |
2174 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), | |
2175 | ovs_strerror(error)); | |
2176 | } | |
2177 | } | |
2178 | ||
2179 | ||
276f6518 SH |
2180 | static void |
2181 | flow_mod_init(struct ofputil_flow_mod *fm, | |
eb391b76 | 2182 | const struct match *match, int priority, |
276f6518 SH |
2183 | const struct ofpact *ofpacts, size_t ofpacts_len, |
2184 | enum ofp_flow_mod_command command) | |
2185 | { | |
39cc5c4a | 2186 | *fm = (struct ofputil_flow_mod) { |
39cc5c4a BP |
2187 | .priority = priority, |
2188 | .table_id = 0, | |
2189 | .command = command, | |
2190 | .buffer_id = UINT32_MAX, | |
2191 | .out_port = OFPP_ANY, | |
2192 | .out_group = OFPG_ANY, | |
2193 | .ofpacts = CONST_CAST(struct ofpact *, ofpacts), | |
2194 | .ofpacts_len = ofpacts_len, | |
39cc5c4a | 2195 | }; |
6a6b7060 | 2196 | minimatch_init(&fm->match, match); |
276f6518 SH |
2197 | } |
2198 | ||
97f63e57 BP |
2199 | static int |
2200 | simple_flow_mod(struct ofproto *ofproto, | |
eb391b76 | 2201 | const struct match *match, int priority, |
97f63e57 BP |
2202 | const struct ofpact *ofpacts, size_t ofpacts_len, |
2203 | enum ofp_flow_mod_command command) | |
2204 | { | |
7338102b | 2205 | struct ofputil_flow_mod fm; |
7338102b | 2206 | flow_mod_init(&fm, match, priority, ofpacts, ofpacts_len, command); |
6a6b7060 BP |
2207 | enum ofperr error = handle_flow_mod__(ofproto, &fm, NULL); |
2208 | minimatch_destroy(&fm.match); | |
2209 | return error; | |
97f63e57 BP |
2210 | } |
2211 | ||
6c1491fb | 2212 | /* Adds a flow to OpenFlow flow table 0 in 'p' that matches 'cls_rule' and |
fa8b054f BP |
2213 | * performs the 'n_actions' actions in 'actions'. The new flow will not |
2214 | * timeout. | |
2215 | * | |
2216 | * If cls_rule->priority is in the range of priorities supported by OpenFlow | |
2217 | * (0...65535, inclusive) then the flow will be visible to OpenFlow | |
2218 | * controllers; otherwise, it will be hidden. | |
2219 | * | |
f25d0cf3 | 2220 | * The caller retains ownership of 'cls_rule' and 'ofpacts'. |
6c1491fb BP |
2221 | * |
2222 | * This is a helper function for in-band control and fail-open. */ | |
064af421 | 2223 | void |
81a76618 | 2224 | ofproto_add_flow(struct ofproto *ofproto, const struct match *match, |
eb391b76 | 2225 | int priority, |
f25d0cf3 | 2226 | const struct ofpact *ofpacts, size_t ofpacts_len) |
15aaf599 | 2227 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 2228 | { |
7ee20df1 | 2229 | const struct rule *rule; |
6f00e29b | 2230 | bool must_add; |
7ee20df1 | 2231 | |
97f63e57 BP |
2232 | /* First do a cheap check whether the rule we're looking for already exists |
2233 | * with the actions that we want. If it does, then we're done. */ | |
81a76618 | 2234 | rule = rule_from_cls_rule(classifier_find_match_exactly( |
2b7b1427 | 2235 | &ofproto->tables[0].cls, match, priority, |
44e0c35d | 2236 | OVS_VERSION_MAX)); |
6f00e29b | 2237 | if (rule) { |
dc723c44 | 2238 | const struct rule_actions *actions = rule_get_actions(rule); |
06a0f3e2 | 2239 | must_add = !ofpacts_equal(actions->ofpacts, actions->ofpacts_len, |
6f00e29b | 2240 | ofpacts, ofpacts_len); |
6f00e29b BP |
2241 | } else { |
2242 | must_add = true; | |
2243 | } | |
97f63e57 BP |
2244 | |
2245 | /* If there's no such rule or the rule doesn't have the actions we want, | |
2246 | * fall back to a executing a full flow mod. We can't optimize this at | |
2247 | * all because we didn't take enough locks above to ensure that the flow | |
2248 | * table didn't already change beneath us. */ | |
6f00e29b | 2249 | if (must_add) { |
97f63e57 BP |
2250 | simple_flow_mod(ofproto, match, priority, ofpacts, ofpacts_len, |
2251 | OFPFC_MODIFY_STRICT); | |
7ee20df1 | 2252 | } |
064af421 BP |
2253 | } |
2254 | ||
d51c8b71 JR |
2255 | /* Executes the flow modification specified in 'fm'. Returns 0 on success, or |
2256 | * an OFPERR_* OpenFlow error code on failure. | |
75a75043 | 2257 | * |
2c7ee524 | 2258 | * This is a helper function for in-band control and fail-open. */ |
d51c8b71 | 2259 | enum ofperr |
7338102b | 2260 | ofproto_flow_mod(struct ofproto *ofproto, const struct ofputil_flow_mod *fm) |
15aaf599 | 2261 | OVS_EXCLUDED(ofproto_mutex) |
75a75043 | 2262 | { |
7338102b | 2263 | return handle_flow_mod__(ofproto, fm, NULL); |
75a75043 BP |
2264 | } |
2265 | ||
6c1491fb BP |
2266 | /* Searches for a rule with matching criteria exactly equal to 'target' in |
2267 | * ofproto's table 0 and, if it finds one, deletes it. | |
2268 | * | |
2269 | * This is a helper function for in-band control and fail-open. */ | |
b20f4073 | 2270 | void |
81a76618 | 2271 | ofproto_delete_flow(struct ofproto *ofproto, |
eb391b76 | 2272 | const struct match *target, int priority) |
25010c68 | 2273 | OVS_REQUIRES(ofproto_mutex) |
064af421 | 2274 | { |
8037acb4 | 2275 | struct classifier *cls = &ofproto->tables[0].cls; |
064af421 BP |
2276 | struct rule *rule; |
2277 | ||
97f63e57 BP |
2278 | /* First do a cheap check whether the rule we're looking for has already |
2279 | * been deleted. If so, then we're done. */ | |
39c94593 | 2280 | rule = rule_from_cls_rule(classifier_find_match_exactly( |
44e0c35d | 2281 | cls, target, priority, OVS_VERSION_MAX)); |
834fe5cb BP |
2282 | if (!rule) { |
2283 | return; | |
bcf84111 | 2284 | } |
834fe5cb | 2285 | |
25010c68 JR |
2286 | struct rule_collection rules; |
2287 | ||
2288 | rule_collection_init(&rules); | |
2289 | rule_collection_add(&rules, rule); | |
2290 | delete_flows__(&rules, OFPRR_DELETE, NULL); | |
2291 | rule_collection_destroy(&rules); | |
142e1f5c BP |
2292 | } |
2293 | ||
834fe5cb BP |
2294 | /* Delete all of the flows from all of ofproto's flow tables, then reintroduce |
2295 | * the flows required by in-band control and fail-open. */ | |
142e1f5c BP |
2296 | void |
2297 | ofproto_flush_flows(struct ofproto *ofproto) | |
2298 | { | |
7ee20df1 | 2299 | COVERAGE_INC(ofproto_flush); |
79eadafe | 2300 | ofproto_flush__(ofproto, false); |
834fe5cb | 2301 | connmgr_flushed(ofproto->connmgr); |
064af421 BP |
2302 | } |
2303 | \f | |
2304 | static void | |
2305 | reinit_ports(struct ofproto *p) | |
2306 | { | |
abe529af | 2307 | struct ofproto_port_dump dump; |
b3c01ed3 | 2308 | struct sset devnames; |
064af421 | 2309 | struct ofport *ofport; |
abe529af | 2310 | struct ofproto_port ofproto_port; |
b3c01ed3 | 2311 | const char *devname; |
064af421 | 2312 | |
898bf89d JP |
2313 | COVERAGE_INC(ofproto_reinit_ports); |
2314 | ||
b3c01ed3 | 2315 | sset_init(&devnames); |
4e8e4213 | 2316 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { |
1264ec95 | 2317 | sset_add(&devnames, netdev_get_name(ofport->netdev)); |
064af421 | 2318 | } |
abe529af BP |
2319 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { |
2320 | sset_add(&devnames, ofproto_port.name); | |
064af421 | 2321 | } |
064af421 | 2322 | |
b3c01ed3 BP |
2323 | SSET_FOR_EACH (devname, &devnames) { |
2324 | update_port(p, devname); | |
064af421 | 2325 | } |
b3c01ed3 | 2326 | sset_destroy(&devnames); |
064af421 BP |
2327 | } |
2328 | ||
4e022ec0 | 2329 | static ofp_port_t |
e1b1d06a JP |
2330 | alloc_ofp_port(struct ofproto *ofproto, const char *netdev_name) |
2331 | { | |
4e022ec0 | 2332 | uint16_t port_idx; |
e1b1d06a | 2333 | |
4e022ec0 | 2334 | port_idx = simap_get(&ofproto->ofp_requests, netdev_name); |
430dbb14 | 2335 | port_idx = port_idx ? port_idx : UINT16_MAX; |
4e022ec0 | 2336 | |
430dbb14 | 2337 | if (port_idx >= ofproto->max_ports |
fdcea803 GS |
2338 | || ofport_get_usage(ofproto, u16_to_ofp(port_idx)) == LLONG_MAX) { |
2339 | uint16_t lru_ofport = 0, end_port_no = ofproto->alloc_port_no; | |
2340 | long long int last_used_at, lru = LLONG_MAX; | |
e1b1d06a | 2341 | |
e1b1d06a JP |
2342 | /* Search for a free OpenFlow port number. We try not to |
2343 | * immediately reuse them to prevent problems due to old | |
484c8355 BP |
2344 | * flows. |
2345 | * | |
2346 | * We limit the automatically assigned port numbers to the lower half | |
2347 | * of the port range, to reserve the upper half for assignment by | |
2348 | * controllers. */ | |
6033d9d9 | 2349 | for (;;) { |
484c8355 | 2350 | if (++ofproto->alloc_port_no >= MIN(ofproto->max_ports, 32768)) { |
fdcea803 | 2351 | ofproto->alloc_port_no = 1; |
6033d9d9 | 2352 | } |
fdcea803 GS |
2353 | last_used_at = ofport_get_usage(ofproto, |
2354 | u16_to_ofp(ofproto->alloc_port_no)); | |
2355 | if (!last_used_at) { | |
430dbb14 | 2356 | port_idx = ofproto->alloc_port_no; |
6033d9d9 | 2357 | break; |
865b26a4 GS |
2358 | } else if ( last_used_at < time_msec() - 60*60*1000) { |
2359 | /* If the port with ofport 'ofproto->alloc_port_no' was deleted | |
2360 | * more than an hour ago, consider it usable. */ | |
2361 | ofport_remove_usage(ofproto, | |
2362 | u16_to_ofp(ofproto->alloc_port_no)); | |
2363 | port_idx = ofproto->alloc_port_no; | |
2364 | break; | |
fdcea803 GS |
2365 | } else if (last_used_at < lru) { |
2366 | lru = last_used_at; | |
2367 | lru_ofport = ofproto->alloc_port_no; | |
e1b1d06a | 2368 | } |
fdcea803 | 2369 | |
430dbb14 | 2370 | if (ofproto->alloc_port_no == end_port_no) { |
fdcea803 GS |
2371 | if (lru_ofport) { |
2372 | port_idx = lru_ofport; | |
2373 | break; | |
2374 | } | |
6033d9d9 | 2375 | return OFPP_NONE; |
e1b1d06a JP |
2376 | } |
2377 | } | |
2378 | } | |
fdcea803 | 2379 | ofport_set_usage(ofproto, u16_to_ofp(port_idx), LLONG_MAX); |
4e022ec0 | 2380 | return u16_to_ofp(port_idx); |
e1b1d06a JP |
2381 | } |
2382 | ||
2383 | static void | |
fdcea803 | 2384 | dealloc_ofp_port(struct ofproto *ofproto, ofp_port_t ofp_port) |
e1b1d06a | 2385 | { |
430dbb14 | 2386 | if (ofp_to_u16(ofp_port) < ofproto->max_ports) { |
fdcea803 | 2387 | ofport_set_usage(ofproto, ofp_port, time_msec()); |
40fa9417 | 2388 | } |
e1b1d06a JP |
2389 | } |
2390 | ||
8fa5a281 HZ |
2391 | /* Opens a netdev for 'ofproto_port' in 'ofproto' and set to p_netdev, |
2392 | * or a null pointer if the netdev cannot be opened. On success, also | |
2393 | * fills in '*pp'. Returns 0 on success, or a positive error number. */ | |
2394 | static int | |
e1b1d06a JP |
2395 | ofport_open(struct ofproto *ofproto, |
2396 | struct ofproto_port *ofproto_port, | |
8fa5a281 HZ |
2397 | struct ofputil_phy_port *pp, |
2398 | struct netdev **p_netdev) | |
064af421 BP |
2399 | { |
2400 | enum netdev_flags flags; | |
064af421 | 2401 | struct netdev *netdev; |
064af421 BP |
2402 | int error; |
2403 | ||
8fa5a281 | 2404 | *p_netdev = NULL; |
18812dff | 2405 | error = netdev_open(ofproto_port->name, ofproto_port->type, &netdev); |
064af421 | 2406 | if (error) { |
94783c7c | 2407 | VLOG_WARN_RL(&rl, "%s: ignoring port %s (%"PRIu32") because netdev %s " |
064af421 | 2408 | "cannot be opened (%s)", |
fbfa2911 | 2409 | ofproto->name, |
abe529af | 2410 | ofproto_port->name, ofproto_port->ofp_port, |
10a89ef0 | 2411 | ofproto_port->name, ovs_strerror(error)); |
8fa5a281 | 2412 | return 0; |
064af421 BP |
2413 | } |
2414 | ||
e1b1d06a JP |
2415 | if (ofproto_port->ofp_port == OFPP_NONE) { |
2416 | if (!strcmp(ofproto->name, ofproto_port->name)) { | |
2417 | ofproto_port->ofp_port = OFPP_LOCAL; | |
2418 | } else { | |
8fa5a281 HZ |
2419 | ofp_port_t ofp_port = alloc_ofp_port(ofproto, |
2420 | ofproto_port->name); | |
2421 | if (ofp_port == OFPP_NONE) { | |
2422 | VLOG_WARN_RL(&rl, "%s: failed to allocated ofp port number " | |
2423 | "for %s.", ofproto->name, ofproto_port->name); | |
2424 | netdev_close(netdev); | |
2425 | return ENOSPC; | |
2426 | } | |
2427 | ofproto_port->ofp_port = ofp_port; | |
e1b1d06a JP |
2428 | } |
2429 | } | |
9e1fd49b | 2430 | pp->port_no = ofproto_port->ofp_port; |
74ff3298 | 2431 | netdev_get_etheraddr(netdev, &pp->hw_addr); |
9e1fd49b | 2432 | ovs_strlcpy(pp->name, ofproto_port->name, sizeof pp->name); |
064af421 | 2433 | netdev_get_flags(netdev, &flags); |
9e1fd49b BP |
2434 | pp->config = flags & NETDEV_UP ? 0 : OFPUTIL_PC_PORT_DOWN; |
2435 | pp->state = netdev_get_carrier(netdev) ? 0 : OFPUTIL_PS_LINK_DOWN; | |
2436 | netdev_get_features(netdev, &pp->curr, &pp->advertised, | |
2437 | &pp->supported, &pp->peer); | |
cd65125d BP |
2438 | pp->curr_speed = netdev_features_to_bps(pp->curr, 0) / 1000; |
2439 | pp->max_speed = netdev_features_to_bps(pp->supported, 0) / 1000; | |
118c4676 | 2440 | |
8fa5a281 HZ |
2441 | *p_netdev = netdev; |
2442 | return 0; | |
064af421 BP |
2443 | } |
2444 | ||
b40fc02a BP |
2445 | /* Returns true if most fields of 'a' and 'b' are equal. Differences in name |
2446 | * and port number are disregarded. */ | |
b33951b8 | 2447 | static bool |
9e1fd49b BP |
2448 | ofport_equal(const struct ofputil_phy_port *a, |
2449 | const struct ofputil_phy_port *b) | |
064af421 | 2450 | { |
9e1fd49b | 2451 | return (eth_addr_equals(a->hw_addr, b->hw_addr) |
064af421 | 2452 | && a->state == b->state |
b40fc02a | 2453 | && a->config == b->config |
064af421 BP |
2454 | && a->curr == b->curr |
2455 | && a->advertised == b->advertised | |
2456 | && a->supported == b->supported | |
9e1fd49b BP |
2457 | && a->peer == b->peer |
2458 | && a->curr_speed == b->curr_speed | |
2459 | && a->max_speed == b->max_speed); | |
064af421 BP |
2460 | } |
2461 | ||
b33951b8 BP |
2462 | /* Adds an ofport to 'p' initialized based on the given 'netdev' and 'opp'. |
2463 | * The caller must ensure that 'p' does not have a conflicting ofport (that is, | |
2464 | * one with the same name or port number). */ | |
01c77073 | 2465 | static int |
b33951b8 | 2466 | ofport_install(struct ofproto *p, |
9e1fd49b | 2467 | struct netdev *netdev, const struct ofputil_phy_port *pp) |
064af421 | 2468 | { |
b33951b8 BP |
2469 | const char *netdev_name = netdev_get_name(netdev); |
2470 | struct ofport *ofport; | |
abe529af | 2471 | int error; |
72b06300 | 2472 | |
b33951b8 | 2473 | /* Create ofport. */ |
abe529af BP |
2474 | ofport = p->ofproto_class->port_alloc(); |
2475 | if (!ofport) { | |
2476 | error = ENOMEM; | |
2477 | goto error; | |
2478 | } | |
0f7d71a5 | 2479 | ofport->ofproto = p; |
b33951b8 | 2480 | ofport->netdev = netdev; |
61501798 | 2481 | ofport->change_seq = netdev_get_change_seq(netdev); |
9e1fd49b BP |
2482 | ofport->pp = *pp; |
2483 | ofport->ofp_port = pp->port_no; | |
65e0be10 | 2484 | ofport->created = time_msec(); |
16361b11 | 2485 | ofport->may_enable = false; |
b33951b8 BP |
2486 | |
2487 | /* Add port to 'p'. */ | |
4e022ec0 | 2488 | hmap_insert(&p->ports, &ofport->hmap_node, |
f9c0c3ec | 2489 | hash_ofp_port(ofport->ofp_port)); |
72b06300 | 2490 | shash_add(&p->port_by_name, netdev_name, ofport); |
abe529af | 2491 | |
ada3428f | 2492 | update_mtu(p, ofport); |
9197df76 | 2493 | |
abe529af BP |
2494 | /* Let the ofproto_class initialize its private data. */ |
2495 | error = p->ofproto_class->port_construct(ofport); | |
2496 | if (error) { | |
2497 | goto error; | |
2498 | } | |
042b8f42 | 2499 | connmgr_send_port_status(p->connmgr, NULL, NULL, pp, OFPPR_ADD); |
01c77073 | 2500 | return 0; |
abe529af BP |
2501 | |
2502 | error: | |
2503 | VLOG_WARN_RL(&rl, "%s: could not add port %s (%s)", | |
10a89ef0 | 2504 | p->name, netdev_name, ovs_strerror(error)); |
abe529af BP |
2505 | if (ofport) { |
2506 | ofport_destroy__(ofport); | |
2507 | } else { | |
2508 | netdev_close(netdev); | |
72b06300 | 2509 | } |
01c77073 | 2510 | return error; |
064af421 BP |
2511 | } |
2512 | ||
b33951b8 | 2513 | /* Removes 'ofport' from 'p' and destroys it. */ |
064af421 | 2514 | static void |
0f7d71a5 | 2515 | ofport_remove(struct ofport *ofport) |
064af421 | 2516 | { |
0670b5d0 | 2517 | struct ofproto *p = ofport->ofproto; |
3a414a0a | 2518 | bool is_mtu_overridden = ofport_is_mtu_overridden(p, ofport); |
0670b5d0 | 2519 | |
042b8f42 | 2520 | connmgr_send_port_status(ofport->ofproto->connmgr, NULL, NULL, &ofport->pp, |
fa066f01 | 2521 | OFPPR_DELETE); |
9aad5a5a | 2522 | ofport_destroy(ofport, true); |
3a414a0a | 2523 | if (!is_mtu_overridden) { |
0670b5d0 | 2524 | update_mtu_ofproto(p); |
2525 | } | |
b33951b8 BP |
2526 | } |
2527 | ||
2528 | /* If 'ofproto' contains an ofport named 'name', removes it from 'ofproto' and | |
2529 | * destroys it. */ | |
2530 | static void | |
2531 | ofport_remove_with_name(struct ofproto *ofproto, const char *name) | |
2532 | { | |
2533 | struct ofport *port = shash_find_data(&ofproto->port_by_name, name); | |
2534 | if (port) { | |
0f7d71a5 | 2535 | ofport_remove(port); |
b33951b8 BP |
2536 | } |
2537 | } | |
2538 | ||
6d57dea9 BP |
2539 | static enum ofputil_port_state |
2540 | normalize_state(enum ofputil_port_config config, | |
2541 | enum ofputil_port_state state, | |
2542 | bool may_enable) | |
2543 | { | |
2544 | return (config & OFPUTIL_PC_PORT_DOWN | |
2545 | || state & OFPUTIL_PS_LINK_DOWN | |
2546 | || !may_enable | |
2547 | ? state & ~OFPUTIL_PS_LIVE | |
2548 | : state | OFPUTIL_PS_LIVE); | |
2549 | } | |
2550 | ||
2551 | void | |
2552 | ofproto_port_set_enable(struct ofport *port, bool enable) | |
2553 | { | |
2554 | if (enable != port->may_enable) { | |
2555 | port->may_enable = enable; | |
2556 | ofproto_port_set_state(port, normalize_state(port->pp.config, | |
2557 | port->pp.state, | |
2558 | port->may_enable)); | |
2559 | } | |
2560 | } | |
064af421 | 2561 | |
5a2dfd47 JP |
2562 | /* Update OpenFlow 'state' in 'port' and notify controller. */ |
2563 | void | |
9e1fd49b | 2564 | ofproto_port_set_state(struct ofport *port, enum ofputil_port_state state) |
5a2dfd47 | 2565 | { |
6d57dea9 | 2566 | state = normalize_state(port->pp.config, state, port->may_enable); |
9e1fd49b | 2567 | if (port->pp.state != state) { |
042b8f42 | 2568 | struct ofputil_phy_port old_pp = port->pp; |
9e1fd49b | 2569 | port->pp.state = state; |
042b8f42 | 2570 | connmgr_send_port_status(port->ofproto->connmgr, NULL, &old_pp, |
2a6f78e0 | 2571 | &port->pp, OFPPR_MODIFY); |
5a2dfd47 JP |
2572 | } |
2573 | } | |
2574 | ||
abe529af | 2575 | void |
4e022ec0 | 2576 | ofproto_port_unregister(struct ofproto *ofproto, ofp_port_t ofp_port) |
e7934396 | 2577 | { |
abe529af BP |
2578 | struct ofport *port = ofproto_get_port(ofproto, ofp_port); |
2579 | if (port) { | |
f0497750 SR |
2580 | if (port->ofproto->ofproto_class->set_lldp) { |
2581 | port->ofproto->ofproto_class->set_lldp(port, NULL); | |
2582 | } | |
b308140a JP |
2583 | if (port->ofproto->ofproto_class->set_stp_port) { |
2584 | port->ofproto->ofproto_class->set_stp_port(port, NULL); | |
2585 | } | |
9efd308e DV |
2586 | if (port->ofproto->ofproto_class->set_rstp_port) { |
2587 | port->ofproto->ofproto_class->set_rstp_port(port, NULL); | |
2588 | } | |
abe529af | 2589 | if (port->ofproto->ofproto_class->set_cfm) { |
a5610457 | 2590 | port->ofproto->ofproto_class->set_cfm(port, NULL); |
abe529af BP |
2591 | } |
2592 | if (port->ofproto->ofproto_class->bundle_remove) { | |
2593 | port->ofproto->ofproto_class->bundle_remove(port); | |
e7934396 BP |
2594 | } |
2595 | } | |
2596 | } | |
2597 | ||
2598 | static void | |
abe529af | 2599 | ofport_destroy__(struct ofport *port) |
e7934396 | 2600 | { |
abe529af BP |
2601 | struct ofproto *ofproto = port->ofproto; |
2602 | const char *name = netdev_get_name(port->netdev); | |
fa066f01 | 2603 | |
f7fc8a30 | 2604 | dealloc_ofp_port(port->ofproto, port->ofp_port); |
abe529af | 2605 | hmap_remove(&ofproto->ports, &port->hmap_node); |
5978c2e3 | 2606 | shash_find_and_delete(&ofproto->port_by_name, name); |
fa066f01 | 2607 | |
abe529af BP |
2608 | netdev_close(port->netdev); |
2609 | ofproto->ofproto_class->port_dealloc(port); | |
e7934396 BP |
2610 | } |
2611 | ||
064af421 | 2612 | static void |
9aad5a5a | 2613 | ofport_destroy(struct ofport *port, bool del) |
064af421 | 2614 | { |
fa066f01 | 2615 | if (port) { |
9aad5a5a | 2616 | port->ofproto->ofproto_class->port_destruct(port, del); |
abe529af BP |
2617 | ofport_destroy__(port); |
2618 | } | |
064af421 BP |
2619 | } |
2620 | ||
abe529af | 2621 | struct ofport * |
4e022ec0 | 2622 | ofproto_get_port(const struct ofproto *ofproto, ofp_port_t ofp_port) |
ca0f572c BP |
2623 | { |
2624 | struct ofport *port; | |
2625 | ||
f9c0c3ec | 2626 | HMAP_FOR_EACH_IN_BUCKET (port, hmap_node, hash_ofp_port(ofp_port), |
4e022ec0 | 2627 | &ofproto->ports) { |
abe529af | 2628 | if (port->ofp_port == ofp_port) { |
ca0f572c BP |
2629 | return port; |
2630 | } | |
2631 | } | |
2632 | return NULL; | |
2633 | } | |
2634 | ||
fdcea803 GS |
2635 | static long long int |
2636 | ofport_get_usage(const struct ofproto *ofproto, ofp_port_t ofp_port) | |
2637 | { | |
2638 | struct ofport_usage *usage; | |
2639 | ||
2640 | HMAP_FOR_EACH_IN_BUCKET (usage, hmap_node, hash_ofp_port(ofp_port), | |
2641 | &ofproto->ofport_usage) { | |
2642 | if (usage->ofp_port == ofp_port) { | |
2643 | return usage->last_used; | |
2644 | } | |
2645 | } | |
2646 | return 0; | |
2647 | } | |
2648 | ||
2649 | static void | |
2650 | ofport_set_usage(struct ofproto *ofproto, ofp_port_t ofp_port, | |
2651 | long long int last_used) | |
2652 | { | |
2653 | struct ofport_usage *usage; | |
2654 | HMAP_FOR_EACH_IN_BUCKET (usage, hmap_node, hash_ofp_port(ofp_port), | |
2655 | &ofproto->ofport_usage) { | |
2656 | if (usage->ofp_port == ofp_port) { | |
2657 | usage->last_used = last_used; | |
2658 | return; | |
2659 | } | |
2660 | } | |
2661 | ovs_assert(last_used == LLONG_MAX); | |
2662 | ||
2663 | usage = xmalloc(sizeof *usage); | |
2664 | usage->ofp_port = ofp_port; | |
2665 | usage->last_used = last_used; | |
2666 | hmap_insert(&ofproto->ofport_usage, &usage->hmap_node, | |
2667 | hash_ofp_port(ofp_port)); | |
2668 | } | |
2669 | ||
865b26a4 GS |
2670 | static void |
2671 | ofport_remove_usage(struct ofproto *ofproto, ofp_port_t ofp_port) | |
2672 | { | |
2673 | struct ofport_usage *usage; | |
2674 | HMAP_FOR_EACH_IN_BUCKET (usage, hmap_node, hash_ofp_port(ofp_port), | |
2675 | &ofproto->ofport_usage) { | |
2676 | if (usage->ofp_port == ofp_port) { | |
2677 | hmap_remove(&ofproto->ofport_usage, &usage->hmap_node); | |
2678 | free(usage); | |
2679 | break; | |
2680 | } | |
2681 | } | |
2682 | } | |
2683 | ||
6527c598 PS |
2684 | int |
2685 | ofproto_port_get_stats(const struct ofport *port, struct netdev_stats *stats) | |
2686 | { | |
2687 | struct ofproto *ofproto = port->ofproto; | |
2688 | int error; | |
2689 | ||
2690 | if (ofproto->ofproto_class->port_get_stats) { | |
2691 | error = ofproto->ofproto_class->port_get_stats(port, stats); | |
2692 | } else { | |
2693 | error = EOPNOTSUPP; | |
2694 | } | |
2695 | ||
2696 | return error; | |
2697 | } | |
2698 | ||
723b6ab2 IM |
2699 | int |
2700 | ofproto_vport_get_status(const struct ofproto *ofproto, ofp_port_t ofp_port, | |
2701 | char **errp) | |
2702 | { | |
2703 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
2704 | ||
2705 | return (ofport && ofproto->ofproto_class->vport_get_status) | |
2706 | ? ofproto->ofproto_class->vport_get_status(ofport, errp) | |
2707 | : EOPNOTSUPP; | |
2708 | } | |
2709 | ||
01c77073 | 2710 | static int |
b33951b8 | 2711 | update_port(struct ofproto *ofproto, const char *name) |
064af421 | 2712 | { |
abe529af | 2713 | struct ofproto_port ofproto_port; |
9e1fd49b | 2714 | struct ofputil_phy_port pp; |
b33951b8 BP |
2715 | struct netdev *netdev; |
2716 | struct ofport *port; | |
01c77073 | 2717 | int error = 0; |
064af421 BP |
2718 | |
2719 | COVERAGE_INC(ofproto_update_port); | |
c874dc6d | 2720 | |
b33951b8 | 2721 | /* Fetch 'name''s location and properties from the datapath. */ |
8fa5a281 HZ |
2722 | if (ofproto_port_query_by_name(ofproto, name, &ofproto_port)) { |
2723 | netdev = NULL; | |
2724 | } else { | |
2725 | error = ofport_open(ofproto, &ofproto_port, &pp, &netdev); | |
2726 | } | |
4e022ec0 | 2727 | |
b33951b8 | 2728 | if (netdev) { |
abe529af | 2729 | port = ofproto_get_port(ofproto, ofproto_port.ofp_port); |
b33951b8 | 2730 | if (port && !strcmp(netdev_get_name(port->netdev), name)) { |
e65942a0 BP |
2731 | struct netdev *old_netdev = port->netdev; |
2732 | ||
b40fc02a | 2733 | /* ofport_open() only sets OFPUTIL_PC_PORT_DOWN and |
6d57dea9 BP |
2734 | * OFPUTIL_PS_LINK_DOWN. Keep the other config and state bits (but |
2735 | * a port that is down cannot be live). */ | |
b40fc02a BP |
2736 | pp.config |= port->pp.config & ~OFPUTIL_PC_PORT_DOWN; |
2737 | pp.state |= port->pp.state & ~OFPUTIL_PS_LINK_DOWN; | |
6d57dea9 | 2738 | pp.state = normalize_state(pp.config, pp.state, port->may_enable); |
b40fc02a | 2739 | |
b33951b8 | 2740 | /* 'name' hasn't changed location. Any properties changed? */ |
6d57dea9 BP |
2741 | if (!ofport_equal(&port->pp, &pp)) { |
2742 | connmgr_send_port_status(port->ofproto->connmgr, NULL, | |
2743 | &port->pp, &pp, OFPPR_MODIFY); | |
b40fc02a | 2744 | port->pp = pp; |
abe529af BP |
2745 | } |
2746 | ||
ada3428f | 2747 | update_mtu(ofproto, port); |
9197df76 | 2748 | |
e65942a0 BP |
2749 | /* Install the newly opened netdev in case it has changed. |
2750 | * Don't close the old netdev yet in case port_modified has to | |
2751 | * remove a retained reference to it.*/ | |
abe529af | 2752 | port->netdev = netdev; |
61501798 | 2753 | port->change_seq = netdev_get_change_seq(netdev); |
abe529af BP |
2754 | |
2755 | if (port->ofproto->ofproto_class->port_modified) { | |
2756 | port->ofproto->ofproto_class->port_modified(port); | |
b33951b8 | 2757 | } |
e65942a0 BP |
2758 | |
2759 | netdev_close(old_netdev); | |
b33951b8 BP |
2760 | } else { |
2761 | /* If 'port' is nonnull then its name differs from 'name' and thus | |
2762 | * we should delete it. If we think there's a port named 'name' | |
2763 | * then its port number must be wrong now so delete it too. */ | |
2764 | if (port) { | |
0f7d71a5 | 2765 | ofport_remove(port); |
b33951b8 BP |
2766 | } |
2767 | ofport_remove_with_name(ofproto, name); | |
01c77073 | 2768 | error = ofport_install(ofproto, netdev, &pp); |
c874dc6d | 2769 | } |
b33951b8 BP |
2770 | } else { |
2771 | /* Any port named 'name' is gone now. */ | |
2772 | ofport_remove_with_name(ofproto, name); | |
c874dc6d | 2773 | } |
abe529af | 2774 | ofproto_port_destroy(&ofproto_port); |
01c77073 BP |
2775 | |
2776 | return error; | |
064af421 BP |
2777 | } |
2778 | ||
2779 | static int | |
2780 | init_ports(struct ofproto *p) | |
2781 | { | |
abe529af BP |
2782 | struct ofproto_port_dump dump; |
2783 | struct ofproto_port ofproto_port; | |
e1b1d06a | 2784 | struct shash_node *node, *next; |
abe529af BP |
2785 | |
2786 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { | |
e1b1d06a JP |
2787 | const char *name = ofproto_port.name; |
2788 | ||
2789 | if (shash_find(&p->port_by_name, name)) { | |
fbfa2911 | 2790 | VLOG_WARN_RL(&rl, "%s: ignoring duplicate device %s in datapath", |
e1b1d06a | 2791 | p->name, name); |
abe529af | 2792 | } else { |
9e1fd49b | 2793 | struct ofputil_phy_port pp; |
b33951b8 BP |
2794 | struct netdev *netdev; |
2795 | ||
e1b1d06a JP |
2796 | /* Check if an OpenFlow port number had been requested. */ |
2797 | node = shash_find(&init_ofp_ports, name); | |
2798 | if (node) { | |
2799 | const struct iface_hint *iface_hint = node->data; | |
4e022ec0 AW |
2800 | simap_put(&p->ofp_requests, name, |
2801 | ofp_to_u16(iface_hint->ofp_port)); | |
e1b1d06a JP |
2802 | } |
2803 | ||
8fa5a281 | 2804 | ofport_open(p, &ofproto_port, &pp, &netdev); |
b33951b8 | 2805 | if (netdev) { |
9e1fd49b | 2806 | ofport_install(p, netdev, &pp); |
430dbb14 | 2807 | if (ofp_to_u16(ofproto_port.ofp_port) < p->max_ports) { |
7c35397c | 2808 | p->alloc_port_no = MAX(p->alloc_port_no, |
430dbb14 | 2809 | ofp_to_u16(ofproto_port.ofp_port)); |
7c35397c | 2810 | } |
064af421 BP |
2811 | } |
2812 | } | |
2813 | } | |
b0ec0f27 | 2814 | |
e1b1d06a | 2815 | SHASH_FOR_EACH_SAFE(node, next, &init_ofp_ports) { |
4f9e08a5 | 2816 | struct iface_hint *iface_hint = node->data; |
e1b1d06a JP |
2817 | |
2818 | if (!strcmp(iface_hint->br_name, p->name)) { | |
2819 | free(iface_hint->br_name); | |
2820 | free(iface_hint->br_type); | |
4f9e08a5 | 2821 | free(iface_hint); |
e1b1d06a JP |
2822 | shash_delete(&init_ofp_ports, node); |
2823 | } | |
2824 | } | |
2825 | ||
064af421 BP |
2826 | return 0; |
2827 | } | |
9197df76 | 2828 | |
3a414a0a | 2829 | static bool |
8c319e8b | 2830 | ofport_is_internal_or_patch(const struct ofproto *p, const struct ofport *port) |
0670b5d0 | 2831 | { |
c381bca5 BP |
2832 | const char *netdev_type = netdev_get_type(port->netdev); |
2833 | return !strcmp(netdev_type, ofproto_port_open_type(p, "internal")) || | |
2834 | !strcmp(netdev_type, ofproto_port_open_type(p, "patch")); | |
0670b5d0 | 2835 | } |
2836 | ||
8c319e8b NS |
2837 | /* If 'port' is internal or patch and if the user didn't explicitly specify an |
2838 | * mtu through the database, we have to override it. */ | |
3a414a0a DDP |
2839 | static bool |
2840 | ofport_is_mtu_overridden(const struct ofproto *p, const struct ofport *port) | |
2841 | { | |
8c319e8b | 2842 | return ofport_is_internal_or_patch(p, port) |
3a414a0a DDP |
2843 | && !netdev_mtu_is_user_config(port->netdev); |
2844 | } | |
2845 | ||
2846 | /* Find the minimum MTU of all non-overridden devices attached to 'p'. | |
9197df76 JP |
2847 | * Returns ETH_PAYLOAD_MAX or the minimum of the ports. */ |
2848 | static int | |
2849 | find_min_mtu(struct ofproto *p) | |
2850 | { | |
2851 | struct ofport *ofport; | |
2852 | int mtu = 0; | |
2853 | ||
2854 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
2855 | struct netdev *netdev = ofport->netdev; | |
2856 | int dev_mtu; | |
2857 | ||
3a414a0a DDP |
2858 | /* Skip any overridden port, since that's what we're trying to set. */ |
2859 | if (ofport_is_mtu_overridden(p, ofport)) { | |
9197df76 JP |
2860 | continue; |
2861 | } | |
2862 | ||
2863 | if (netdev_get_mtu(netdev, &dev_mtu)) { | |
2864 | continue; | |
2865 | } | |
2866 | if (!mtu || dev_mtu < mtu) { | |
2867 | mtu = dev_mtu; | |
2868 | } | |
2869 | } | |
2870 | ||
2871 | return mtu ? mtu: ETH_PAYLOAD_MAX; | |
2872 | } | |
2873 | ||
3a414a0a DDP |
2874 | /* Update MTU of all overridden devices on 'p' to the minimum of the |
2875 | * non-overridden ports in event of 'port' added or changed. */ | |
9197df76 | 2876 | static void |
ada3428f | 2877 | update_mtu(struct ofproto *p, struct ofport *port) |
9197df76 | 2878 | { |
ada3428f | 2879 | struct netdev *netdev = port->netdev; |
0670b5d0 | 2880 | int dev_mtu; |
ada3428f PS |
2881 | |
2882 | if (netdev_get_mtu(netdev, &dev_mtu)) { | |
2883 | port->mtu = 0; | |
2884 | return; | |
2885 | } | |
3a414a0a | 2886 | if (ofport_is_mtu_overridden(p, port)) { |
7478b5a2 | 2887 | if (dev_mtu > p->min_mtu) { |
3a414a0a DDP |
2888 | if (!netdev_set_mtu(port->netdev, p->min_mtu)) { |
2889 | dev_mtu = p->min_mtu; | |
2890 | } | |
ada3428f PS |
2891 | } |
2892 | port->mtu = dev_mtu; | |
2893 | return; | |
2894 | } | |
2895 | ||
ada3428f | 2896 | port->mtu = dev_mtu; |
3a414a0a DDP |
2897 | /* For non-overridden port find new min mtu. */ |
2898 | ||
0670b5d0 | 2899 | update_mtu_ofproto(p); |
2900 | } | |
2901 | ||
2902 | static void | |
2903 | update_mtu_ofproto(struct ofproto *p) | |
2904 | { | |
0670b5d0 | 2905 | struct ofport *ofport; |
2906 | int old_min = p->min_mtu; | |
2907 | ||
ada3428f PS |
2908 | p->min_mtu = find_min_mtu(p); |
2909 | if (p->min_mtu == old_min) { | |
2910 | return; | |
2911 | } | |
9197df76 JP |
2912 | |
2913 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
2914 | struct netdev *netdev = ofport->netdev; | |
2915 | ||
3a414a0a | 2916 | if (ofport_is_mtu_overridden(p, ofport)) { |
ada3428f PS |
2917 | if (!netdev_set_mtu(netdev, p->min_mtu)) { |
2918 | ofport->mtu = p->min_mtu; | |
2919 | } | |
9197df76 JP |
2920 | } |
2921 | } | |
2922 | } | |
064af421 | 2923 | \f |
f416c8d6 JR |
2924 | static void |
2925 | ofproto_rule_destroy__(struct rule *rule) | |
2926 | OVS_NO_THREAD_SAFETY_ANALYSIS | |
2927 | { | |
2928 | cls_rule_destroy(CONST_CAST(struct cls_rule *, &rule->cr)); | |
2929 | rule_actions_destroy(rule_get_actions(rule)); | |
2930 | ovs_mutex_destroy(&rule->mutex); | |
2931 | rule->ofproto->ofproto_class->rule_dealloc(rule); | |
2932 | } | |
2933 | ||
2934 | static void | |
2935 | rule_destroy_cb(struct rule *rule) | |
f695ebfa | 2936 | OVS_NO_THREAD_SAFETY_ANALYSIS |
f416c8d6 | 2937 | { |
f695ebfa JR |
2938 | /* Send rule removed if needed. */ |
2939 | if (rule->flags & OFPUTIL_FF_SEND_FLOW_REM | |
2940 | && rule->removed_reason != OVS_OFPRR_NONE | |
2941 | && !rule_is_hidden(rule)) { | |
2942 | ofproto_rule_send_removed(rule); | |
2943 | } | |
f416c8d6 | 2944 | rule->ofproto->ofproto_class->rule_destruct(rule); |
5c7c16d8 YHW |
2945 | mf_vl_mff_unref(&rule->ofproto->vl_mff_map, rule->match_tlv_bitmap); |
2946 | mf_vl_mff_unref(&rule->ofproto->vl_mff_map, rule->ofpacts_tlv_bitmap); | |
f416c8d6 JR |
2947 | ofproto_rule_destroy__(rule); |
2948 | } | |
2949 | ||
a2143702 BP |
2950 | void |
2951 | ofproto_rule_ref(struct rule *rule) | |
064af421 | 2952 | { |
1eae3d33 | 2953 | if (rule) { |
37bec3d3 | 2954 | ovs_refcount_ref(&rule->ref_count); |
a2143702 BP |
2955 | } |
2956 | } | |
2957 | ||
f5d16e55 JR |
2958 | bool |
2959 | ofproto_rule_try_ref(struct rule *rule) | |
2960 | { | |
2961 | if (rule) { | |
2962 | return ovs_refcount_try_ref_rcu(&rule->ref_count); | |
2963 | } | |
2964 | return false; | |
2965 | } | |
2966 | ||
f416c8d6 JR |
2967 | /* Decrements 'rule''s ref_count and schedules 'rule' to be destroyed if the |
2968 | * ref_count reaches 0. | |
2969 | * | |
2970 | * Use of RCU allows short term use (between RCU quiescent periods) without | |
2971 | * keeping a reference. A reference must be taken if the rule needs to | |
2972 | * stay around accross the RCU quiescent periods. */ | |
a2143702 BP |
2973 | void |
2974 | ofproto_rule_unref(struct rule *rule) | |
2975 | { | |
24f83812 | 2976 | if (rule && ovs_refcount_unref_relaxed(&rule->ref_count) == 1) { |
2c7ee524 | 2977 | ovs_assert(rule->state != RULE_INSERTED); |
f416c8d6 | 2978 | ovsrcu_postpone(rule_destroy_cb, rule); |
1eae3d33 | 2979 | } |
064af421 BP |
2980 | } |
2981 | ||
39c94593 JR |
2982 | static void |
2983 | remove_rule_rcu__(struct rule *rule) | |
2984 | OVS_REQUIRES(ofproto_mutex) | |
2985 | { | |
2986 | struct ofproto *ofproto = rule->ofproto; | |
2987 | struct oftable *table = &ofproto->tables[rule->table_id]; | |
2988 | ||
44e0c35d | 2989 | ovs_assert(!cls_rule_visible_in_version(&rule->cr, OVS_VERSION_MAX)); |
46ab60bf | 2990 | classifier_remove_assert(&table->cls, &rule->cr); |
1fc71871 JR |
2991 | if (ofproto->ofproto_class->rule_delete) { |
2992 | ofproto->ofproto_class->rule_delete(rule); | |
2993 | } | |
39c94593 JR |
2994 | ofproto_rule_unref(rule); |
2995 | } | |
2996 | ||
2997 | static void | |
2998 | remove_rule_rcu(struct rule *rule) | |
2999 | OVS_EXCLUDED(ofproto_mutex) | |
3000 | { | |
3001 | ovs_mutex_lock(&ofproto_mutex); | |
3002 | remove_rule_rcu__(rule); | |
3003 | ovs_mutex_unlock(&ofproto_mutex); | |
3004 | } | |
3005 | ||
3006 | /* Removes and deletes rules from a NULL-terminated array of rule pointers. */ | |
3007 | static void | |
3008 | remove_rules_rcu(struct rule **rules) | |
3009 | OVS_EXCLUDED(ofproto_mutex) | |
3010 | { | |
3011 | struct rule **orig_rules = rules; | |
3012 | ||
3013 | if (*rules) { | |
3014 | struct ofproto *ofproto = rules[0]->ofproto; | |
3015 | unsigned long tables[BITMAP_N_LONGS(256)]; | |
3016 | struct rule *rule; | |
3017 | size_t table_id; | |
3018 | ||
3019 | memset(tables, 0, sizeof tables); | |
3020 | ||
3021 | ovs_mutex_lock(&ofproto_mutex); | |
3022 | while ((rule = *rules++)) { | |
3023 | /* Defer once for each new table. This defers the subtable cleanup | |
3024 | * until later, so that when removing large number of flows the | |
3025 | * operation is faster. */ | |
3026 | if (!bitmap_is_set(tables, rule->table_id)) { | |
3027 | struct classifier *cls = &ofproto->tables[rule->table_id].cls; | |
3028 | ||
3029 | bitmap_set1(tables, rule->table_id); | |
3030 | classifier_defer(cls); | |
3031 | } | |
3032 | remove_rule_rcu__(rule); | |
3033 | } | |
3034 | ||
3035 | BITMAP_FOR_EACH_1(table_id, 256, tables) { | |
3036 | struct classifier *cls = &ofproto->tables[table_id].cls; | |
3037 | ||
3038 | classifier_publish(cls); | |
3039 | } | |
3040 | ovs_mutex_unlock(&ofproto_mutex); | |
3041 | } | |
3042 | ||
3043 | free(orig_rules); | |
3044 | } | |
3045 | ||
809c7548 RW |
3046 | void |
3047 | ofproto_group_ref(struct ofgroup *group) | |
3048 | { | |
3049 | if (group) { | |
3050 | ovs_refcount_ref(&group->ref_count); | |
3051 | } | |
3052 | } | |
3053 | ||
db88b35c JR |
3054 | bool |
3055 | ofproto_group_try_ref(struct ofgroup *group) | |
3056 | { | |
3057 | if (group) { | |
3058 | return ovs_refcount_try_ref_rcu(&group->ref_count); | |
3059 | } | |
3060 | return false; | |
3061 | } | |
3062 | ||
3063 | static void | |
3064 | group_destroy_cb(struct ofgroup *group) | |
3065 | { | |
3066 | group->ofproto->ofproto_class->group_destruct(group); | |
e8dba719 JR |
3067 | ofputil_group_properties_destroy(CONST_CAST(struct ofputil_group_props *, |
3068 | &group->props)); | |
db88b35c JR |
3069 | ofputil_bucket_list_destroy(CONST_CAST(struct ovs_list *, |
3070 | &group->buckets)); | |
3071 | group->ofproto->ofproto_class->group_dealloc(group); | |
3072 | } | |
3073 | ||
809c7548 RW |
3074 | void |
3075 | ofproto_group_unref(struct ofgroup *group) | |
cc099268 | 3076 | OVS_NO_THREAD_SAFETY_ANALYSIS |
809c7548 | 3077 | { |
db88b35c | 3078 | if (group && ovs_refcount_unref_relaxed(&group->ref_count) == 1) { |
fe59694b | 3079 | ovs_assert(rule_collection_n(&group->rules) == 0); |
db88b35c | 3080 | ovsrcu_postpone(group_destroy_cb, group); |
809c7548 RW |
3081 | } |
3082 | } | |
3083 | ||
5d08a275 JR |
3084 | static void |
3085 | remove_group_rcu__(struct ofgroup *group) | |
3086 | OVS_REQUIRES(ofproto_mutex) | |
3087 | { | |
3088 | struct ofproto *ofproto = group->ofproto; | |
3089 | ||
3090 | ovs_assert(!versions_visible_in_version(&group->versions, OVS_VERSION_MAX)); | |
3091 | ||
3092 | cmap_remove(&ofproto->groups, &group->cmap_node, | |
3093 | hash_int(group->group_id, 0)); | |
3094 | ofproto_group_unref(group); | |
3095 | } | |
3096 | ||
3097 | static void | |
3098 | remove_group_rcu(struct ofgroup *group) | |
3099 | OVS_EXCLUDED(ofproto_mutex) | |
3100 | { | |
3101 | ovs_mutex_lock(&ofproto_mutex); | |
3102 | remove_group_rcu__(group); | |
3103 | ovs_mutex_unlock(&ofproto_mutex); | |
3104 | } | |
3105 | ||
3106 | /* Removes and deletes groups from a NULL-terminated array of group | |
3107 | * pointers. */ | |
3108 | static void | |
3109 | remove_groups_rcu(struct ofgroup **groups) | |
3110 | OVS_EXCLUDED(ofproto_mutex) | |
3111 | { | |
3112 | ovs_mutex_lock(&ofproto_mutex); | |
3113 | for (struct ofgroup **g = groups; *g; g++) { | |
3114 | remove_group_rcu__(*g); | |
3115 | } | |
3116 | ovs_mutex_unlock(&ofproto_mutex); | |
3117 | free(groups); | |
3118 | } | |
3119 | ||
076caa2f JR |
3120 | static bool ofproto_fix_meter_action(const struct ofproto *, |
3121 | struct ofpact_meter *); | |
65efd2ab | 3122 | |
206ddb9a JP |
3123 | static bool ofproto_fix_controller_action(const struct ofproto *, |
3124 | struct ofpact_controller *); | |
3125 | ||
dc723c44 JR |
3126 | /* Creates and returns a new 'struct rule_actions', whose actions are a copy |
3127 | * of from the 'ofpacts_len' bytes of 'ofpacts'. */ | |
3128 | const struct rule_actions * | |
4c7562c5 | 3129 | rule_actions_create(const struct ofpact *ofpacts, size_t ofpacts_len) |
6f00e29b BP |
3130 | { |
3131 | struct rule_actions *actions; | |
3132 | ||
dc723c44 | 3133 | actions = xmalloc(sizeof *actions + ofpacts_len); |
6f00e29b | 3134 | actions->ofpacts_len = ofpacts_len; |
dc723c44 | 3135 | memcpy(actions->ofpacts, ofpacts, ofpacts_len); |
cc099268 JR |
3136 | actions->has_meter = ofpacts_get_meter(ofpacts, ofpacts_len) != 0; |
3137 | actions->has_groups = | |
3138 | (ofpact_find_type_flattened(ofpacts, OFPACT_GROUP, | |
3139 | ofpact_end(ofpacts, ofpacts_len)) | |
3140 | != NULL); | |
35f48b8b BP |
3141 | actions->has_learn_with_delete = (next_learn_with_delete(actions, NULL) |
3142 | != NULL); | |
3143 | ||
6f00e29b BP |
3144 | return actions; |
3145 | } | |
3146 | ||
dc723c44 | 3147 | /* Free the actions after the RCU quiescent period is reached. */ |
6f00e29b | 3148 | void |
dc723c44 | 3149 | rule_actions_destroy(const struct rule_actions *actions) |
6f00e29b | 3150 | { |
06a0f3e2 | 3151 | if (actions) { |
dc723c44 | 3152 | ovsrcu_postpone(free, CONST_CAST(struct rule_actions *, actions)); |
6f00e29b BP |
3153 | } |
3154 | } | |
3155 | ||
bcf84111 | 3156 | /* Returns true if 'rule' has an OpenFlow OFPAT_OUTPUT or OFPAT_ENQUEUE action |
f25d0cf3 | 3157 | * that outputs to 'port' (output to OFPP_FLOOD and OFPP_ALL doesn't count). */ |
cdbdeeda | 3158 | bool |
4e022ec0 | 3159 | ofproto_rule_has_out_port(const struct rule *rule, ofp_port_t port) |
15aaf599 | 3160 | OVS_REQUIRES(ofproto_mutex) |
064af421 | 3161 | { |
06a0f3e2 BP |
3162 | if (port == OFPP_ANY) { |
3163 | return true; | |
3164 | } else { | |
3165 | const struct rule_actions *actions = rule_get_actions(rule); | |
3166 | return ofpacts_output_to_port(actions->ofpacts, | |
3167 | actions->ofpacts_len, port); | |
3168 | } | |
064af421 BP |
3169 | } |
3170 | ||
7395c052 | 3171 | /* Returns true if 'rule' has group and equals group_id. */ |
74e79b7c | 3172 | static bool |
7395c052 | 3173 | ofproto_rule_has_out_group(const struct rule *rule, uint32_t group_id) |
15aaf599 | 3174 | OVS_REQUIRES(ofproto_mutex) |
7395c052 | 3175 | { |
06a0f3e2 BP |
3176 | if (group_id == OFPG_ANY) { |
3177 | return true; | |
3178 | } else { | |
3179 | const struct rule_actions *actions = rule_get_actions(rule); | |
3180 | return ofpacts_output_to_group(actions->ofpacts, | |
3181 | actions->ofpacts_len, group_id); | |
3182 | } | |
7395c052 NZ |
3183 | } |
3184 | ||
adcf00ba | 3185 | static bool |
834fe5cb | 3186 | rule_is_readonly(const struct rule *rule) |
5c67e4af | 3187 | { |
834fe5cb BP |
3188 | const struct oftable *table = &rule->ofproto->tables[rule->table_id]; |
3189 | return (table->flags & OFTABLE_READONLY) != 0; | |
5c67e4af | 3190 | } |
fa066f01 | 3191 | \f |
35f48b8b BP |
3192 | static uint32_t |
3193 | hash_learned_cookie(ovs_be64 cookie_, uint8_t table_id) | |
3194 | { | |
3195 | uint64_t cookie = (OVS_FORCE uint64_t) cookie_; | |
3196 | return hash_3words(cookie, cookie >> 32, table_id); | |
3197 | } | |
3198 | ||
3199 | static void | |
3200 | learned_cookies_update_one__(struct ofproto *ofproto, | |
3201 | const struct ofpact_learn *learn, | |
ca6ba700 | 3202 | int delta, struct ovs_list *dead_cookies) |
35f48b8b BP |
3203 | OVS_REQUIRES(ofproto_mutex) |
3204 | { | |
3205 | uint32_t hash = hash_learned_cookie(learn->cookie, learn->table_id); | |
3206 | struct learned_cookie *c; | |
3207 | ||
fa37affa | 3208 | HMAP_FOR_EACH_WITH_HASH (c, hmap_node, hash, &ofproto->learned_cookies) { |
35f48b8b BP |
3209 | if (c->cookie == learn->cookie && c->table_id == learn->table_id) { |
3210 | c->n += delta; | |
3211 | ovs_assert(c->n >= 0); | |
3212 | ||
3213 | if (!c->n) { | |
fa37affa BP |
3214 | hmap_remove(&ofproto->learned_cookies, &c->hmap_node); |
3215 | ovs_list_push_back(dead_cookies, &c->list_node); | |
35f48b8b BP |
3216 | } |
3217 | ||
3218 | return; | |
3219 | } | |
3220 | } | |
3221 | ||
3222 | ovs_assert(delta > 0); | |
3223 | c = xmalloc(sizeof *c); | |
fa37affa | 3224 | hmap_insert(&ofproto->learned_cookies, &c->hmap_node, hash); |
35f48b8b BP |
3225 | c->cookie = learn->cookie; |
3226 | c->table_id = learn->table_id; | |
3227 | c->n = delta; | |
3228 | } | |
3229 | ||
3230 | static const struct ofpact_learn * | |
3231 | next_learn_with_delete(const struct rule_actions *actions, | |
3232 | const struct ofpact_learn *start) | |
3233 | { | |
3234 | const struct ofpact *pos; | |
3235 | ||
3236 | for (pos = start ? ofpact_next(&start->ofpact) : actions->ofpacts; | |
3237 | pos < ofpact_end(actions->ofpacts, actions->ofpacts_len); | |
3238 | pos = ofpact_next(pos)) { | |
3239 | if (pos->type == OFPACT_LEARN) { | |
3240 | const struct ofpact_learn *learn = ofpact_get_LEARN(pos); | |
3241 | if (learn->flags & NX_LEARN_F_DELETE_LEARNED) { | |
3242 | return learn; | |
3243 | } | |
3244 | } | |
3245 | } | |
3246 | ||
3247 | return NULL; | |
3248 | } | |
3249 | ||
3250 | static void | |
3251 | learned_cookies_update__(struct ofproto *ofproto, | |
3252 | const struct rule_actions *actions, | |
ca6ba700 | 3253 | int delta, struct ovs_list *dead_cookies) |
35f48b8b BP |
3254 | OVS_REQUIRES(ofproto_mutex) |
3255 | { | |
3256 | if (actions->has_learn_with_delete) { | |
3257 | const struct ofpact_learn *learn; | |
3258 | ||
3259 | for (learn = next_learn_with_delete(actions, NULL); learn; | |
3260 | learn = next_learn_with_delete(actions, learn)) { | |
3261 | learned_cookies_update_one__(ofproto, learn, delta, dead_cookies); | |
3262 | } | |
3263 | } | |
3264 | } | |
3265 | ||
3266 | static void | |
3267 | learned_cookies_inc(struct ofproto *ofproto, | |
3268 | const struct rule_actions *actions) | |
3269 | OVS_REQUIRES(ofproto_mutex) | |
3270 | { | |
3271 | learned_cookies_update__(ofproto, actions, +1, NULL); | |
3272 | } | |
3273 | ||
3274 | static void | |
3275 | learned_cookies_dec(struct ofproto *ofproto, | |
3276 | const struct rule_actions *actions, | |
ca6ba700 | 3277 | struct ovs_list *dead_cookies) |
35f48b8b BP |
3278 | OVS_REQUIRES(ofproto_mutex) |
3279 | { | |
3280 | learned_cookies_update__(ofproto, actions, -1, dead_cookies); | |
3281 | } | |
3282 | ||
3283 | static void | |
ca6ba700 | 3284 | learned_cookies_flush(struct ofproto *ofproto, struct ovs_list *dead_cookies) |
35f48b8b BP |
3285 | OVS_REQUIRES(ofproto_mutex) |
3286 | { | |
5f03c983 | 3287 | struct learned_cookie *c; |
35f48b8b | 3288 | |
6a6b7060 BP |
3289 | struct minimatch match; |
3290 | ||
3291 | minimatch_init_catchall(&match); | |
fa37affa | 3292 | LIST_FOR_EACH_POP (c, list_node, dead_cookies) { |
35f48b8b BP |
3293 | struct rule_criteria criteria; |
3294 | struct rule_collection rules; | |
44e0c35d | 3295 | rule_criteria_init(&criteria, c->table_id, &match, 0, OVS_VERSION_MAX, |
35f48b8b BP |
3296 | c->cookie, OVS_BE64_MAX, OFPP_ANY, OFPG_ANY); |
3297 | rule_criteria_require_rw(&criteria, false); | |
3298 | collect_rules_loose(ofproto, &criteria, &rules); | |
35f48b8b | 3299 | rule_criteria_destroy(&criteria); |
39c94593 | 3300 | delete_flows__(&rules, OFPRR_DELETE, NULL); |
35f48b8b | 3301 | |
35f48b8b BP |
3302 | free(c); |
3303 | } | |
6a6b7060 | 3304 | minimatch_destroy(&match); |
35f48b8b BP |
3305 | } |
3306 | \f | |
90bf1e07 | 3307 | static enum ofperr |
d1e2cf21 | 3308 | handle_echo_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3309 | { |
d9cea8f5 | 3310 | ofconn_send_reply(ofconn, ofputil_encode_echo_reply(oh)); |
064af421 | 3311 | return 0; |
064af421 BP |
3312 | } |
3313 | ||
3c1bb396 BP |
3314 | static void |
3315 | query_tables(struct ofproto *ofproto, | |
3316 | struct ofputil_table_features **featuresp, | |
3317 | struct ofputil_table_stats **statsp) | |
3318 | { | |
178742f9 BP |
3319 | struct mf_bitmap rw_fields = oxm_writable_fields(); |
3320 | struct mf_bitmap match = oxm_matchable_fields(); | |
3321 | struct mf_bitmap mask = oxm_maskable_fields(); | |
3c1bb396 BP |
3322 | |
3323 | struct ofputil_table_features *features; | |
3324 | struct ofputil_table_stats *stats; | |
3325 | int i; | |
3326 | ||
3c1bb396 BP |
3327 | features = *featuresp = xcalloc(ofproto->n_tables, sizeof *features); |
3328 | for (i = 0; i < ofproto->n_tables; i++) { | |
3329 | struct ofputil_table_features *f = &features[i]; | |
3330 | ||
3331 | f->table_id = i; | |
4bc938cc | 3332 | f->name[0] = '\0'; |
3c1bb396 BP |
3333 | f->metadata_match = OVS_BE64_MAX; |
3334 | f->metadata_write = OVS_BE64_MAX; | |
afcea9ea | 3335 | atomic_read_relaxed(&ofproto->tables[i].miss_config, &f->miss_config); |
3c1bb396 BP |
3336 | f->max_entries = 1000000; |
3337 | ||
4e413ac8 BP |
3338 | f->any_properties = true; |
3339 | ||
5dc7516b BP |
3340 | bool more_tables = false; |
3341 | for (int j = i + 1; j < ofproto->n_tables; j++) { | |
3342 | if (!(ofproto->tables[j].flags & OFTABLE_HIDDEN)) { | |
3343 | bitmap_set1(f->nonmiss.next, j); | |
3344 | more_tables = true; | |
3345 | } | |
3346 | } | |
3c1bb396 | 3347 | f->nonmiss.instructions = (1u << N_OVS_INSTRUCTIONS) - 1; |
5dc7516b | 3348 | if (!more_tables) { |
3c1bb396 BP |
3349 | f->nonmiss.instructions &= ~(1u << OVSINST_OFPIT11_GOTO_TABLE); |
3350 | } | |
3351 | f->nonmiss.write.ofpacts = (UINT64_C(1) << N_OFPACTS) - 1; | |
3352 | f->nonmiss.write.set_fields = rw_fields; | |
3353 | f->nonmiss.apply = f->nonmiss.write; | |
3354 | f->miss = f->nonmiss; | |
3355 | ||
3356 | f->match = match; | |
3357 | f->mask = mask; | |
3358 | f->wildcard = match; | |
3359 | } | |
3360 | ||
3361 | if (statsp) { | |
3362 | stats = *statsp = xcalloc(ofproto->n_tables, sizeof *stats); | |
3363 | for (i = 0; i < ofproto->n_tables; i++) { | |
3364 | struct ofputil_table_stats *s = &stats[i]; | |
3c1bb396 BP |
3365 | |
3366 | s->table_id = i; | |
d79e3d70 | 3367 | s->active_count = ofproto->tables[i].n_flows; |
3fbbcba7 BP |
3368 | if (i == 0) { |
3369 | s->active_count -= connmgr_count_hidden_rules( | |
3370 | ofproto->connmgr); | |
3371 | } | |
3c1bb396 BP |
3372 | } |
3373 | } else { | |
3374 | stats = NULL; | |
3375 | } | |
3376 | ||
3377 | ofproto->ofproto_class->query_tables(ofproto, features, stats); | |
3378 | ||
3379 | for (i = 0; i < ofproto->n_tables; i++) { | |
3380 | const struct oftable *table = &ofproto->tables[i]; | |
3381 | struct ofputil_table_features *f = &features[i]; | |
3382 | ||
3383 | if (table->name) { | |
3384 | ovs_strzcpy(f->name, table->name, sizeof f->name); | |
3385 | } | |
3386 | ||
3387 | if (table->max_flows < f->max_entries) { | |
3388 | f->max_entries = table->max_flows; | |
3389 | } | |
3390 | } | |
3391 | } | |
3392 | ||
3393 | static void | |
3394 | query_switch_features(struct ofproto *ofproto, | |
3395 | bool *arp_match_ip, uint64_t *ofpacts) | |
3396 | { | |
3397 | struct ofputil_table_features *features, *f; | |
3398 | ||
3399 | *arp_match_ip = false; | |
3400 | *ofpacts = 0; | |
3401 | ||
3402 | query_tables(ofproto, &features, NULL); | |
3403 | for (f = features; f < &features[ofproto->n_tables]; f++) { | |
3404 | *ofpacts |= f->nonmiss.apply.ofpacts | f->miss.apply.ofpacts; | |
3405 | if (bitmap_is_set(f->match.bm, MFF_ARP_SPA) || | |
3406 | bitmap_is_set(f->match.bm, MFF_ARP_TPA)) { | |
3407 | *arp_match_ip = true; | |
3408 | } | |
3409 | } | |
3410 | free(features); | |
3411 | ||
3412 | /* Sanity check. */ | |
3413 | ovs_assert(*ofpacts & (UINT64_C(1) << OFPACT_OUTPUT)); | |
3414 | } | |
3415 | ||
90bf1e07 | 3416 | static enum ofperr |
d1e2cf21 | 3417 | handle_features_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3418 | { |
64ff1d96 | 3419 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
9e1fd49b | 3420 | struct ofputil_switch_features features; |
064af421 | 3421 | struct ofport *port; |
6c1491fb | 3422 | bool arp_match_ip; |
9e1fd49b | 3423 | struct ofpbuf *b; |
064af421 | 3424 | |
3c1bb396 | 3425 | query_switch_features(ofproto, &arp_match_ip, &features.ofpacts); |
064af421 | 3426 | |
9e1fd49b | 3427 | features.datapath_id = ofproto->datapath_id; |
c184807c | 3428 | features.n_buffers = 0; |
adcf00ba | 3429 | features.n_tables = ofproto_get_n_visible_tables(ofproto); |
9e1fd49b | 3430 | features.capabilities = (OFPUTIL_C_FLOW_STATS | OFPUTIL_C_TABLE_STATS | |
4efe455d | 3431 | OFPUTIL_C_PORT_STATS | OFPUTIL_C_QUEUE_STATS | |
50b73fe1 | 3432 | OFPUTIL_C_GROUP_STATS | OFPUTIL_C_BUNDLES); |
6c1491fb | 3433 | if (arp_match_ip) { |
9e1fd49b | 3434 | features.capabilities |= OFPUTIL_C_ARP_MATCH_IP; |
6c1491fb | 3435 | } |
2e1ae200 JR |
3436 | /* FIXME: Fill in proper features.auxiliary_id for auxiliary connections */ |
3437 | features.auxiliary_id = 0; | |
9e1fd49b BP |
3438 | b = ofputil_encode_switch_features(&features, ofconn_get_protocol(ofconn), |
3439 | oh->xid); | |
64ff1d96 | 3440 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
9e1fd49b | 3441 | ofputil_put_switch_features_port(&port->pp, b); |
064af421 | 3442 | } |
064af421 | 3443 | |
9e1fd49b | 3444 | ofconn_send_reply(ofconn, b); |
064af421 BP |
3445 | return 0; |
3446 | } | |
064af421 | 3447 | |
90bf1e07 | 3448 | static enum ofperr |
d1e2cf21 | 3449 | handle_get_config_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3450 | { |
ad99e2ed BP |
3451 | struct ofputil_switch_config config; |
3452 | config.frag = ofconn_get_ofproto(ofconn)->frag_handling; | |
3453 | config.invalid_ttl_to_controller | |
3454 | = ofconn_get_invalid_ttl_to_controller(ofconn); | |
3455 | config.miss_send_len = ofconn_get_miss_send_len(ofconn); | |
3456 | ||
3457 | ofconn_send_reply(ofconn, ofputil_encode_get_config_reply(oh, &config)); | |
2d70a31a | 3458 | |
064af421 BP |
3459 | return 0; |
3460 | } | |
064af421 | 3461 | |
90bf1e07 | 3462 | static enum ofperr |
982697a4 | 3463 | handle_set_config(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3464 | { |
64ff1d96 | 3465 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
ad99e2ed BP |
3466 | struct ofputil_switch_config config; |
3467 | enum ofperr error; | |
3468 | ||
3469 | error = ofputil_decode_set_config(oh, &config); | |
3470 | if (error) { | |
3471 | return error; | |
3472 | } | |
2d70a31a | 3473 | |
7257b535 | 3474 | if (ofconn_get_type(ofconn) != OFCONN_PRIMARY |
807152a4 | 3475 | || ofconn_get_role(ofconn) != OFPCR12_ROLE_SECONDARY) { |
ad99e2ed BP |
3476 | enum ofputil_frag_handling cur = ofproto->frag_handling; |
3477 | enum ofputil_frag_handling next = config.frag; | |
7257b535 | 3478 | |
7257b535 BP |
3479 | if (cur != next) { |
3480 | if (ofproto->ofproto_class->set_frag_handling(ofproto, next)) { | |
3481 | ofproto->frag_handling = next; | |
3482 | } else { | |
3483 | VLOG_WARN_RL(&rl, "%s: unsupported fragment handling mode %s", | |
3484 | ofproto->name, | |
3485 | ofputil_frag_handling_to_string(next)); | |
3486 | } | |
064af421 BP |
3487 | } |
3488 | } | |
ebe482fd | 3489 | |
ad99e2ed BP |
3490 | if (config.invalid_ttl_to_controller >= 0) { |
3491 | ofconn_set_invalid_ttl_to_controller(ofconn, | |
3492 | config.invalid_ttl_to_controller); | |
3493 | } | |
3494 | ||
3495 | ofconn_set_miss_send_len(ofconn, config.miss_send_len); | |
0ad9b732 | 3496 | |
064af421 | 3497 | return 0; |
064af421 BP |
3498 | } |
3499 | ||
807152a4 BP |
3500 | /* Checks whether 'ofconn' is a secondary controller. If so, returns an |
3501 | * OpenFlow error message code for the caller to propagate upward. Otherwise, | |
3502 | * returns 0. | |
90bf1e07 BP |
3503 | * |
3504 | * The log message mentions 'msg_type'. */ | |
3505 | static enum ofperr | |
807152a4 | 3506 | reject_secondary_controller(struct ofconn *ofconn) |
9deba63b | 3507 | { |
807152a4 BP |
3508 | if (ofconn_get_role(ofconn) == OFPCR12_ROLE_SECONDARY) { |
3509 | return OFPERR_OFPBRC_IS_SECONDARY; | |
9deba63b BP |
3510 | } else { |
3511 | return 0; | |
3512 | } | |
3513 | } | |
3514 | ||
7e9f8266 BP |
3515 | /* Checks that the 'ofpacts_len' bytes of action in 'ofpacts' are appropriate |
3516 | * for 'ofproto': | |
3517 | * | |
3518 | * - If they use a meter, then 'ofproto' has that meter configured. | |
076caa2f | 3519 | * Updates the meter action with ofproto's datapath's provider_meter_id. |
7e9f8266 BP |
3520 | * |
3521 | * - If they use any groups, then 'ofproto' has that group configured. | |
3522 | * | |
1f4a8933 JR |
3523 | * Returns 0 if successful, otherwise an OpenFlow error. Caller must hold |
3524 | * 'ofproto_mutex' for the result to be valid also after this function | |
3525 | * returns. */ | |
89108874 | 3526 | enum ofperr |
9cae45dc | 3527 | ofproto_check_ofpacts(struct ofproto *ofproto, |
7e9f8266 | 3528 | const struct ofpact ofpacts[], size_t ofpacts_len) |
1f4a8933 | 3529 | OVS_REQUIRES(ofproto_mutex) |
9cae45dc | 3530 | { |
076caa2f | 3531 | const struct ofpact *a; |
9cae45dc | 3532 | |
076caa2f JR |
3533 | OFPACT_FOR_EACH_FLATTENED (a, ofpacts, ofpacts_len) { |
3534 | if (a->type == OFPACT_METER && | |
3535 | !ofproto_fix_meter_action(ofproto, ofpact_get_METER(a))) { | |
3536 | return OFPERR_OFPMMFC_INVALID_METER; | |
3537 | } | |
9cae45dc | 3538 | |
206ddb9a JP |
3539 | if (a->type == OFPACT_CONTROLLER) { |
3540 | struct ofpact_controller *ca = ofpact_get_CONTROLLER(a); | |
3541 | ||
3542 | if (!ofproto_fix_controller_action(ofproto, ca)) { | |
3543 | static struct vlog_rate_limit rl2 = VLOG_RATE_LIMIT_INIT(1, 5); | |
3544 | VLOG_INFO_RL(&rl2, "%s: controller action specified an " | |
3545 | "unknown meter id: %d", | |
3546 | ofproto->name, ca->meter_id); | |
3547 | } | |
3548 | } | |
3549 | ||
076caa2f JR |
3550 | if (a->type == OFPACT_GROUP |
3551 | && !ofproto_group_exists(ofproto, ofpact_get_GROUP(a)->group_id)) { | |
7e9f8266 | 3552 | return OFPERR_OFPBAC_BAD_OUT_GROUP; |
84d68566 SH |
3553 | } |
3554 | } | |
3555 | ||
9cae45dc JR |
3556 | return 0; |
3557 | } | |
3558 | ||
1f4a8933 JR |
3559 | void |
3560 | ofproto_packet_out_uninit(struct ofproto_packet_out *opo) | |
3561 | { | |
3562 | dp_packet_delete(opo->packet); | |
3563 | opo->packet = NULL; | |
3564 | free(opo->flow); | |
3565 | opo->flow = NULL; | |
3566 | free(opo->ofpacts); | |
3567 | opo->ofpacts = NULL; | |
3568 | opo->ofpacts_len = 0; | |
3569 | ovs_assert(!opo->aux); | |
3570 | } | |
3571 | ||
3572 | /* Takes ownership of po->ofpacts, which must have been malloc'ed. */ | |
3573 | static enum ofperr | |
3574 | ofproto_packet_out_init(struct ofproto *ofproto, | |
3575 | struct ofconn *ofconn, | |
3576 | struct ofproto_packet_out *opo, | |
3577 | const struct ofputil_packet_out *po) | |
3578 | { | |
3579 | enum ofperr error; | |
67210a55 | 3580 | struct match match; |
d7892c81 YHW |
3581 | struct { |
3582 | struct miniflow mf; | |
3583 | uint64_t buf[FLOW_U64S]; | |
3584 | } m; | |
1f4a8933 | 3585 | |
35eb6326 YHW |
3586 | uint16_t in_port = ofp_to_u16(po->flow_metadata.flow.in_port.ofp_port); |
3587 | if (in_port >= ofproto->max_ports && in_port < ofp_to_u16(OFPP_MAX)) { | |
1f4a8933 JR |
3588 | return OFPERR_OFPBRC_BAD_PORT; |
3589 | } | |
3590 | ||
3591 | /* Get payload. */ | |
3592 | if (po->buffer_id != UINT32_MAX) { | |
3593 | return OFPERR_OFPBRC_BUFFER_UNKNOWN; | |
3594 | } | |
3595 | ||
3596 | /* Ensure that the L3 header is 32-bit aligned. */ | |
3597 | opo->packet = dp_packet_clone_data_with_headroom(po->packet, | |
3598 | po->packet_len, 2); | |
cb1145d1 ZB |
3599 | /* Take the received packet_tpye as packet_type of the packet. */ |
3600 | opo->packet->packet_type = po->flow_metadata.flow.packet_type; | |
3601 | ||
1f4a8933 JR |
3602 | /* Store struct flow. */ |
3603 | opo->flow = xmalloc(sizeof *opo->flow); | |
d7892c81 YHW |
3604 | *opo->flow = po->flow_metadata.flow; |
3605 | miniflow_extract(opo->packet, &m.mf); | |
3606 | flow_union_with_miniflow(opo->flow, &m.mf); | |
1f4a8933 JR |
3607 | |
3608 | /* Check actions like for flow mods. We pass a 'table_id' of 0 to | |
3609 | * ofproto_check_consistency(), which isn't strictly correct because these | |
3610 | * actions aren't in any table. This is OK as 'table_id' is only used to | |
3611 | * check instructions (e.g., goto-table), which can't appear on the action | |
3612 | * list of a packet-out. */ | |
67210a55 | 3613 | match_wc_init(&match, opo->flow); |
ae6f7530 BP |
3614 | struct ofpact_check_params cp = { |
3615 | .match = &match, | |
3616 | .max_ports = u16_to_ofp(ofproto->max_ports), | |
3617 | .table_id = 0, | |
3618 | .n_tables = ofproto->n_tables | |
3619 | }; | |
3620 | error = ofpacts_check_consistency(po->ofpacts, po->ofpacts_len, | |
3621 | ofconn_get_protocol(ofconn), &cp); | |
1f4a8933 JR |
3622 | if (error) { |
3623 | dp_packet_delete(opo->packet); | |
3624 | free(opo->flow); | |
3625 | return error; | |
3626 | } | |
3627 | ||
3628 | opo->ofpacts = po->ofpacts; | |
3629 | opo->ofpacts_len = po->ofpacts_len; | |
3630 | ||
3631 | opo->aux = NULL; | |
3632 | return 0; | |
3633 | } | |
3634 | ||
3635 | static enum ofperr | |
3636 | ofproto_packet_out_start(struct ofproto *ofproto, | |
3637 | struct ofproto_packet_out *opo) | |
3638 | OVS_REQUIRES(ofproto_mutex) | |
3639 | { | |
3640 | enum ofperr error; | |
3641 | ||
3642 | error = ofproto_check_ofpacts(ofproto, opo->ofpacts, opo->ofpacts_len); | |
3643 | if (error) { | |
3644 | return error; | |
3645 | } | |
3646 | ||
3647 | return ofproto->ofproto_class->packet_xlate(ofproto, opo); | |
3648 | } | |
3649 | ||
6dd3c787 JR |
3650 | static void |
3651 | ofproto_packet_out_revert(struct ofproto *ofproto, | |
3652 | struct ofproto_packet_out *opo) | |
3653 | OVS_REQUIRES(ofproto_mutex) | |
3654 | { | |
3655 | ofproto->ofproto_class->packet_xlate_revert(ofproto, opo); | |
3656 | } | |
3657 | ||
47f8743e IM |
3658 | static void |
3659 | ofproto_packet_out_prepare(struct ofproto *ofproto, | |
3660 | struct ofproto_packet_out *opo) | |
3661 | OVS_REQUIRES(ofproto_mutex) | |
3662 | { | |
3663 | ofproto->ofproto_class->packet_execute_prepare(ofproto, opo); | |
3664 | } | |
3665 | ||
3666 | /* Execution of packet_out action in datapath could end up in upcall with | |
3667 | * subsequent flow translations and possible rule modifications. | |
3668 | * So, the caller should not hold 'ofproto_mutex'. */ | |
1f4a8933 JR |
3669 | static void |
3670 | ofproto_packet_out_finish(struct ofproto *ofproto, | |
3671 | struct ofproto_packet_out *opo) | |
47f8743e | 3672 | OVS_EXCLUDED(ofproto_mutex) |
1f4a8933 JR |
3673 | { |
3674 | ofproto->ofproto_class->packet_execute(ofproto, opo); | |
3675 | } | |
3676 | ||
90bf1e07 | 3677 | static enum ofperr |
982697a4 | 3678 | handle_packet_out(struct ofconn *ofconn, const struct ofp_header *oh) |
1f4a8933 | 3679 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 3680 | { |
64ff1d96 | 3681 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
c6a93eb7 | 3682 | struct ofputil_packet_out po; |
1f4a8933 | 3683 | struct ofproto_packet_out opo; |
f25d0cf3 BP |
3684 | uint64_t ofpacts_stub[1024 / 8]; |
3685 | struct ofpbuf ofpacts; | |
90bf1e07 | 3686 | enum ofperr error; |
064af421 | 3687 | |
ac51afaf BP |
3688 | COVERAGE_INC(ofproto_packet_out); |
3689 | ||
807152a4 | 3690 | error = reject_secondary_controller(ofconn); |
9deba63b | 3691 | if (error) { |
1f4a8933 | 3692 | return error; |
9deba63b BP |
3693 | } |
3694 | ||
c6a93eb7 | 3695 | /* Decode message. */ |
f25d0cf3 | 3696 | ofpbuf_use_stub(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); |
89d7927b YHW |
3697 | error = ofputil_decode_packet_out(&po, oh, ofproto_get_tun_tab(p), |
3698 | &ofpacts); | |
064af421 | 3699 | if (error) { |
1f4a8933 JR |
3700 | ofpbuf_uninit(&ofpacts); |
3701 | return error; | |
91858960 | 3702 | } |
064af421 | 3703 | |
1f4a8933 JR |
3704 | po.ofpacts = ofpbuf_steal_data(&ofpacts); /* Move to heap. */ |
3705 | error = ofproto_packet_out_init(p, ofconn, &opo, &po); | |
3706 | if (error) { | |
3707 | free(po.ofpacts); | |
3708 | return error; | |
e1154f71 | 3709 | } |
89108874 | 3710 | |
1f4a8933 JR |
3711 | ovs_mutex_lock(&ofproto_mutex); |
3712 | opo.version = p->tables_version; | |
3713 | error = ofproto_packet_out_start(p, &opo); | |
548de4dd | 3714 | if (!error) { |
47f8743e | 3715 | ofproto_packet_out_prepare(p, &opo); |
548de4dd | 3716 | } |
1f4a8933 | 3717 | ovs_mutex_unlock(&ofproto_mutex); |
abe529af | 3718 | |
47f8743e IM |
3719 | if (!error) { |
3720 | ofproto_packet_out_finish(p, &opo); | |
3721 | } | |
1f4a8933 | 3722 | ofproto_packet_out_uninit(&opo); |
abe529af | 3723 | return error; |
064af421 BP |
3724 | } |
3725 | ||
77ab5fd2 BP |
3726 | static enum ofperr |
3727 | handle_nxt_resume(struct ofconn *ofconn, const struct ofp_header *oh) | |
3728 | { | |
3729 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
3730 | struct ofputil_packet_in_private pin; | |
3731 | enum ofperr error; | |
3732 | ||
8d8ab6c2 | 3733 | error = ofputil_decode_packet_in_private(oh, false, |
3cddeff0 YHW |
3734 | ofproto_get_tun_tab(ofproto), |
3735 | &ofproto->vl_mff_map, &pin, NULL, | |
3736 | NULL); | |
77ab5fd2 BP |
3737 | if (error) { |
3738 | return error; | |
3739 | } | |
3740 | ||
3741 | error = (ofproto->ofproto_class->nxt_resume | |
3742 | ? ofproto->ofproto_class->nxt_resume(ofproto, &pin) | |
3743 | : OFPERR_NXR_NOT_SUPPORTED); | |
3744 | ||
3745 | ofputil_packet_in_private_destroy(&pin); | |
3746 | ||
3747 | return error; | |
3748 | } | |
3749 | ||
064af421 | 3750 | static void |
2a6f78e0 | 3751 | update_port_config(struct ofconn *ofconn, struct ofport *port, |
9e1fd49b BP |
3752 | enum ofputil_port_config config, |
3753 | enum ofputil_port_config mask) | |
064af421 | 3754 | { |
2a6f78e0 | 3755 | enum ofputil_port_config toggle = (config ^ port->pp.config) & mask; |
abe529af | 3756 | |
2a6f78e0 BP |
3757 | if (toggle & OFPUTIL_PC_PORT_DOWN |
3758 | && (config & OFPUTIL_PC_PORT_DOWN | |
3759 | ? netdev_turn_flags_off(port->netdev, NETDEV_UP, NULL) | |
3760 | : netdev_turn_flags_on(port->netdev, NETDEV_UP, NULL))) { | |
3761 | /* We tried to bring the port up or down, but it failed, so don't | |
3762 | * update the "down" bit. */ | |
9e1fd49b | 3763 | toggle &= ~OFPUTIL_PC_PORT_DOWN; |
064af421 | 3764 | } |
abe529af | 3765 | |
2a6f78e0 | 3766 | if (toggle) { |
042b8f42 | 3767 | struct ofputil_phy_port old_pp = port->pp; |
6d57dea9 | 3768 | |
2a6f78e0 | 3769 | port->pp.config ^= toggle; |
6d57dea9 BP |
3770 | port->pp.state = normalize_state(port->pp.config, port->pp.state, |
3771 | port->may_enable); | |
3772 | ||
042b8f42 BP |
3773 | port->ofproto->ofproto_class->port_reconfigured(port, old_pp.config); |
3774 | connmgr_send_port_status(port->ofproto->connmgr, ofconn, &old_pp, | |
3775 | &port->pp, OFPPR_MODIFY); | |
064af421 BP |
3776 | } |
3777 | } | |
3778 | ||
90bf1e07 | 3779 | static enum ofperr |
1c38055d JR |
3780 | port_mod_start(struct ofconn *ofconn, struct ofputil_port_mod *pm, |
3781 | struct ofport **port) | |
064af421 | 3782 | { |
64ff1d96 | 3783 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
1c38055d JR |
3784 | |
3785 | *port = ofproto_get_port(p, pm->port_no); | |
3786 | if (!*port) { | |
3787 | return OFPERR_OFPPMFC_BAD_PORT; | |
3788 | } | |
29718ad4 | 3789 | if (!eth_addr_equals((*port)->pp.hw_addr, pm->hw_addr)) { |
1c38055d JR |
3790 | return OFPERR_OFPPMFC_BAD_HW_ADDR; |
3791 | } | |
3792 | return 0; | |
3793 | } | |
3794 | ||
3795 | static void | |
3796 | port_mod_finish(struct ofconn *ofconn, struct ofputil_port_mod *pm, | |
3797 | struct ofport *port) | |
3798 | { | |
3799 | update_port_config(ofconn, port, pm->config, pm->mask); | |
3800 | if (pm->advertise) { | |
3801 | netdev_set_advertisements(port->netdev, pm->advertise); | |
3802 | } | |
3803 | } | |
3804 | ||
3805 | static enum ofperr | |
3806 | handle_port_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
3807 | { | |
9e1fd49b | 3808 | struct ofputil_port_mod pm; |
064af421 | 3809 | struct ofport *port; |
9e1fd49b | 3810 | enum ofperr error; |
064af421 | 3811 | |
807152a4 | 3812 | error = reject_secondary_controller(ofconn); |
9deba63b BP |
3813 | if (error) { |
3814 | return error; | |
3815 | } | |
064af421 | 3816 | |
18cc69d9 | 3817 | error = ofputil_decode_port_mod(oh, &pm, false); |
9e1fd49b BP |
3818 | if (error) { |
3819 | return error; | |
3820 | } | |
3821 | ||
1c38055d JR |
3822 | error = port_mod_start(ofconn, &pm, &port); |
3823 | if (!error) { | |
3824 | port_mod_finish(ofconn, &pm, port); | |
064af421 | 3825 | } |
1c38055d | 3826 | return error; |
064af421 BP |
3827 | } |
3828 | ||
90bf1e07 | 3829 | static enum ofperr |
3269c562 | 3830 | handle_desc_stats_request(struct ofconn *ofconn, |
982697a4 | 3831 | const struct ofp_header *request) |
064af421 | 3832 | { |
061bfea4 BP |
3833 | static const char *default_mfr_desc = "Nicira, Inc."; |
3834 | static const char *default_hw_desc = "Open vSwitch"; | |
3835 | static const char *default_sw_desc = VERSION; | |
3836 | static const char *default_serial_desc = "None"; | |
3837 | static const char *default_dp_desc = "None"; | |
3838 | ||
64ff1d96 | 3839 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 BP |
3840 | struct ofp_desc_stats *ods; |
3841 | struct ofpbuf *msg; | |
3842 | ||
982697a4 BP |
3843 | msg = ofpraw_alloc_stats_reply(request, 0); |
3844 | ods = ofpbuf_put_zeros(msg, sizeof *ods); | |
061bfea4 BP |
3845 | ovs_strlcpy(ods->mfr_desc, p->mfr_desc ? p->mfr_desc : default_mfr_desc, |
3846 | sizeof ods->mfr_desc); | |
3847 | ovs_strlcpy(ods->hw_desc, p->hw_desc ? p->hw_desc : default_hw_desc, | |
3848 | sizeof ods->hw_desc); | |
3849 | ovs_strlcpy(ods->sw_desc, p->sw_desc ? p->sw_desc : default_sw_desc, | |
3850 | sizeof ods->sw_desc); | |
3851 | ovs_strlcpy(ods->serial_num, | |
3852 | p->serial_desc ? p->serial_desc : default_serial_desc, | |
3853 | sizeof ods->serial_num); | |
3854 | ovs_strlcpy(ods->dp_desc, p->dp_desc ? p->dp_desc : default_dp_desc, | |
3855 | sizeof ods->dp_desc); | |
b0421aa2 | 3856 | ofconn_send_reply(ofconn, msg); |
064af421 BP |
3857 | |
3858 | return 0; | |
3859 | } | |
3860 | ||
90bf1e07 | 3861 | static enum ofperr |
3269c562 | 3862 | handle_table_stats_request(struct ofconn *ofconn, |
982697a4 | 3863 | const struct ofp_header *request) |
064af421 | 3864 | { |
3c1bb396 BP |
3865 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
3866 | struct ofputil_table_features *features; | |
08d1e234 | 3867 | struct ofputil_table_stats *stats; |
3c1bb396 | 3868 | struct ofpbuf *reply; |
6c1491fb | 3869 | size_t i; |
064af421 | 3870 | |
3c1bb396 | 3871 | query_tables(ofproto, &features, &stats); |
254750ce | 3872 | |
3c1bb396 BP |
3873 | reply = ofputil_encode_table_stats_reply(request); |
3874 | for (i = 0; i < ofproto->n_tables; i++) { | |
3875 | if (!(ofproto->tables[i].flags & OFTABLE_HIDDEN)) { | |
3876 | ofputil_append_table_stats_reply(reply, &stats[i], &features[i]); | |
254750ce BP |
3877 | } |
3878 | } | |
3c1bb396 | 3879 | ofconn_send_reply(ofconn, reply); |
254750ce | 3880 | |
3c1bb396 | 3881 | free(features); |
08d1e234 | 3882 | free(stats); |
307975da | 3883 | |
064af421 BP |
3884 | return 0; |
3885 | } | |
3886 | ||
4e413ac8 BP |
3887 | /* OpenFlow 1.5.1 section 7.3.5.18.1 "Table Features request and reply" |
3888 | * says: | |
3889 | * | |
3890 | * If a table feature included in the request has an empty list of | |
3891 | * properties, the list of properties for that flow table is unchanged and | |
3892 | * only the other features of that flow table are updated. | |
3893 | * | |
3894 | * This function copies the "list of properties" from '*src' to '*dst'. */ | |
3895 | static void | |
3896 | copy_properties(struct ofputil_table_features *dst, | |
3897 | const struct ofputil_table_features *src) | |
3898 | { | |
3899 | dst->any_properties = src->any_properties; | |
3900 | if (src->any_properties) { | |
3901 | dst->nonmiss = src->nonmiss; | |
3902 | dst->miss = src->miss; | |
3903 | dst->match = src->match; | |
3904 | dst->mask = src->mask; | |
3905 | dst->wildcard = src->wildcard; | |
3906 | } | |
3907 | } | |
3908 | ||
3909 | /* Attempts to change the table features of the ofproto backing 'ofconn' to | |
3910 | * those specified in the table features request in 'msgs', given that the | |
3911 | * features are currently those in 'old'. | |
3912 | * | |
3913 | * Returns 0 if successful, an OpenFlow error if the caller should send an | |
3914 | * error message for the request as a whole, or -1 if the function already sent | |
3915 | * an error message for some message in 'msgs'. */ | |
3916 | static int | |
3917 | handle_table_features_change(struct ofconn *ofconn, | |
3918 | const struct ovs_list *msgs, | |
3919 | const struct ofputil_table_features old[]) | |
3c4e10fb BP |
3920 | { |
3921 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
4e413ac8 BP |
3922 | |
3923 | enum ofp15_table_features_command command = OFPTFC15_REPLACE; | |
3924 | struct ofputil_table_features new[255]; | |
3925 | ||
3926 | unsigned long int seen[BITMAP_N_LONGS(255)]; | |
3927 | memset(seen, 0, sizeof seen); | |
3928 | ||
3929 | struct ofpbuf *msg; | |
3930 | int n = 0; | |
3931 | LIST_FOR_EACH (msg, list_node, msgs) { | |
3932 | for (;;) { | |
3933 | struct ofputil_table_features tf; | |
3934 | int retval = ofputil_decode_table_features(msg, &tf, NULL); | |
3935 | if (retval == EOF) { | |
3936 | break; | |
3937 | } else if (retval) { | |
3938 | ofconn_send_error(ofconn, msg->header, retval); | |
3939 | return -1; | |
3940 | } | |
3941 | ||
3942 | /* Get command from first request. */ | |
3943 | if (!n) { | |
3944 | command = tf.command; | |
3945 | } | |
3946 | n++; | |
3947 | ||
3948 | /* Avoid duplicate tables. */ | |
3949 | if (bitmap_is_set(seen, tf.table_id)) { | |
3950 | VLOG_INFO_RL(&rl, "duplicate table %"PRIu8, tf.table_id); | |
3951 | ofconn_send_error(ofconn, msg->header, | |
3952 | OFPERR_NXTFFC_DUP_TABLE); | |
3953 | return -1; | |
3954 | } | |
3955 | bitmap_set1(seen, tf.table_id); | |
3956 | ||
3957 | /* Save table. */ | |
3958 | new[tf.table_id] = tf; | |
3959 | } | |
3960 | } | |
3961 | ||
3962 | if (!n) { | |
3963 | return 0; | |
3964 | } | |
3965 | ||
3966 | for (size_t i = 0; i < ofproto->n_tables; i++) { | |
3967 | if (ofproto->tables[i].flags & OFTABLE_HIDDEN) { | |
3968 | if (bitmap_is_set(seen, i)) { | |
3969 | VLOG_INFO_RL(&rl, "can't modify hidden table %"PRIuSIZE, i); | |
3970 | return OFPERR_OFPTFFC_EPERM; | |
3971 | } | |
3972 | ||
3973 | new[i] = old[i]; | |
3974 | bitmap_set1(seen, i); | |
3975 | } | |
3976 | } | |
3977 | ||
3978 | switch (command) { | |
3979 | case OFPTFC15_REPLACE: | |
3980 | break; | |
3981 | ||
3982 | case OFPTFC15_MODIFY: | |
3983 | for (size_t i = 0; i < ofproto->n_tables; i++) { | |
3984 | if (!bitmap_is_set(seen, i)) { | |
3985 | new[i] = old[i]; | |
3986 | bitmap_set1(seen, i); | |
3987 | } else if (!new[i].any_properties) { | |
3988 | copy_properties(&new[i], &old[i]); | |
3989 | } | |
3990 | } | |
3991 | break; | |
3992 | ||
3993 | case OFPTFC15_ENABLE: | |
3994 | case OFPTFC15_DISABLE: | |
3995 | /* It really isn't clear what these commands are supposed to do in an | |
3996 | * Open vSwitch context. OVS doesn't have a concept of tables that | |
3997 | * exist but are not in the pipeline, and OVS table ids are always | |
3998 | * sequential from 0. */ | |
3c4e10fb BP |
3999 | return OFPERR_OFPTFFC_EPERM; |
4000 | } | |
4001 | ||
4e413ac8 BP |
4002 | /* Make sure that the new number of tables is the same as the old number, |
4003 | * because we don't support changing the number of tables or disabling | |
4004 | * tables. */ | |
4005 | int n_tables = bitmap_scan(seen, 0, 0, 255); | |
4006 | bool skipped_tables = bitmap_scan(seen, 1, n_tables, 255) != 255; | |
4007 | if (n_tables != ofproto->n_tables || skipped_tables) { | |
4008 | if (skipped_tables) { | |
4009 | VLOG_INFO_RL(&rl, "can't disable table %d", n_tables); | |
4010 | } else { | |
4011 | VLOG_INFO_RL(&rl, "can't change number of tables from %d to %d", | |
4012 | ofproto->n_tables, n_tables); | |
4013 | } | |
4014 | return (n_tables > ofproto->n_tables | |
4015 | ? OFPERR_OFPTFFC_TOO_MANY | |
4016 | : OFPERR_OFPTFFC_EPERM); | |
4017 | } | |
4018 | ||
4019 | /* OpenFlow 1.5.1 section 7.3.5.18.1 "Table Features request and reply" | |
4020 | * says: | |
4021 | * | |
4022 | * "All fields in ofp_table_features may be requested to be changed by | |
4023 | * the controller with the exception of the max_entries field, this is | |
4024 | * read only and returned by the switch." | |
4025 | * | |
4026 | * so forbid the controller from attempting to change it. | |
4027 | * | |
4028 | * (This seems like a particularly arbitrary prohibition since OVS could | |
4029 | * easily implement such a feature. Whatever.) */ | |
4030 | for (size_t i = 0; i < n_tables; i++) { | |
4031 | if (old[i].max_entries != new[i].max_entries) { | |
4032 | VLOG_INFO_RL(&rl, "can't change max_entries"); | |
4033 | return OFPERR_OFPTFFC_EPERM; | |
4034 | } | |
4035 | } | |
4036 | ||
4037 | /* Check that we can set table names. */ | |
4038 | for (size_t i = 0; i < n_tables; i++) { | |
4039 | if (!oftable_may_set_name(&ofproto->tables[i], new[i].name, 1)) { | |
4040 | const char *name = ofproto->tables[i].name; | |
4041 | VLOG_INFO_RL(&rl, "can't change name of table %"PRIuSIZE" " | |
4042 | "to %s because it is already set to %s via OVSDB", | |
4043 | i, new[i].name, name ? name : "\"\""); | |
4044 | return OFPERR_OFPTFFC_EPERM; | |
4045 | } | |
4046 | } | |
4047 | ||
4048 | /* Ask the provider to update its features. | |
4049 | * | |
4050 | * If the provider can't update features, just make sure that the | |
4051 | * controller isn't asking to enable new features. OpenFlow says it's OK | |
4052 | * if a superset of the requested features are actually enabled. */ | |
4053 | if (ofproto->ofproto_class->modify_tables) { | |
4054 | enum ofperr error = ofproto->ofproto_class->modify_tables(ofproto, | |
4055 | old, new); | |
4056 | if (error) { | |
4057 | VLOG_INFO_RL(&rl, "can't change table features"); | |
4058 | return error; | |
4059 | } | |
4060 | } else { | |
4061 | for (size_t i = 0; i < n_tables; i++) { | |
4062 | if (!ofputil_table_features_are_superset(&old[i], &new[i])) { | |
4063 | VLOG_INFO_RL(&rl, "can't increase table features " | |
4064 | "for table %"PRIuSIZE, i); | |
4065 | return OFPERR_OFPTFFC_EPERM; | |
4066 | } | |
4067 | } | |
4068 | } | |
4069 | ||
4070 | /* Update table names. */ | |
4071 | for (size_t i = 0; i < n_tables; i++) { | |
4072 | oftable_set_name(&ofproto->tables[i], new[i].name, 1); | |
4073 | } | |
4074 | ||
4075 | return 0; | |
4076 | } | |
4077 | ||
4078 | static void | |
4079 | handle_table_features_request(struct ofconn *ofconn, | |
4080 | const struct ovs_list *msgs) | |
4081 | { | |
4082 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
4083 | ||
4084 | struct ofpbuf *msg = ofpbuf_from_list(ovs_list_back(msgs)); | |
4085 | const struct ofp_header *request = msg->data; | |
4086 | ofpraw_pull_assert(msg); | |
4087 | ||
4088 | /* Update the table features configuration, if requested. */ | |
0a2869d5 | 4089 | struct ofputil_table_features *features; |
3c4e10fb | 4090 | query_tables(ofproto, &features, NULL); |
4e413ac8 BP |
4091 | if (!ovs_list_is_singleton(msgs) || msg->size) { |
4092 | int retval = handle_table_features_change(ofconn, msgs, features); | |
4093 | free(features); | |
4094 | if (retval) { | |
4095 | if (retval < 0) { | |
4096 | /* handle_table_features_change() already sent an error. */ | |
4097 | } else { | |
4098 | ofconn_send_error(ofconn, request, retval); | |
4099 | } | |
4100 | return; | |
4101 | } | |
4102 | ||
4103 | /* Features may have changed, re-query. */ | |
4104 | query_tables(ofproto, &features, NULL); | |
4105 | } | |
3c4e10fb | 4106 | |
4e413ac8 | 4107 | /* Reply the controller with the table configuration. */ |
0a2869d5 | 4108 | struct ovs_list replies; |
3c4e10fb | 4109 | ofpmp_init(&replies, request); |
0a2869d5 | 4110 | for (size_t i = 0; i < ofproto->n_tables; i++) { |
3c4e10fb | 4111 | if (!(ofproto->tables[i].flags & OFTABLE_HIDDEN)) { |
4e413ac8 | 4112 | ofputil_append_table_features(&features[i], NULL, &replies); |
3c4e10fb BP |
4113 | } |
4114 | } | |
4115 | ofconn_send_replies(ofconn, &replies); | |
4116 | ||
4117 | free(features); | |
3c4e10fb BP |
4118 | } |
4119 | ||
6c6eedc5 SJ |
4120 | /* Returns the vacancy of 'oftable', a number that ranges from 0 (if the table |
4121 | * is full) to 100 (if the table is empty). | |
4122 | * | |
4123 | * A table without a limit on flows is considered to be empty. */ | |
4124 | static uint8_t | |
4125 | oftable_vacancy(const struct oftable *t) | |
4126 | { | |
4127 | return (!t->max_flows ? 100 | |
4128 | : t->n_flows >= t->max_flows ? 0 | |
4129 | : (t->max_flows - t->n_flows) * 100.0 / t->max_flows); | |
4130 | } | |
4131 | ||
bab86012 SJ |
4132 | static void |
4133 | query_table_desc__(struct ofputil_table_desc *td, | |
4134 | struct ofproto *ofproto, uint8_t table_id) | |
4135 | { | |
6c6eedc5 | 4136 | const struct oftable *t = &ofproto->tables[table_id]; |
bab86012 SJ |
4137 | |
4138 | td->table_id = table_id; | |
6c6eedc5 | 4139 | td->eviction = (t->eviction & EVICTION_OPENFLOW |
bab86012 SJ |
4140 | ? OFPUTIL_TABLE_EVICTION_ON |
4141 | : OFPUTIL_TABLE_EVICTION_OFF); | |
4142 | td->eviction_flags = OFPROTO_EVICTION_FLAGS; | |
6c6eedc5 | 4143 | td->vacancy = (t->vacancy_event |
bab86012 SJ |
4144 | ? OFPUTIL_TABLE_VACANCY_ON |
4145 | : OFPUTIL_TABLE_VACANCY_OFF); | |
6c6eedc5 SJ |
4146 | td->table_vacancy.vacancy_down = t->vacancy_down; |
4147 | td->table_vacancy.vacancy_up = t->vacancy_up; | |
4148 | td->table_vacancy.vacancy = oftable_vacancy(t); | |
bab86012 SJ |
4149 | } |
4150 | ||
03c72922 BP |
4151 | /* This function queries the database for dumping table-desc. */ |
4152 | static void | |
4153 | query_tables_desc(struct ofproto *ofproto, struct ofputil_table_desc **descp) | |
4154 | { | |
4155 | struct ofputil_table_desc *table_desc; | |
4156 | size_t i; | |
4157 | ||
4158 | table_desc = *descp = xcalloc(ofproto->n_tables, sizeof *table_desc); | |
4159 | for (i = 0; i < ofproto->n_tables; i++) { | |
4160 | struct ofputil_table_desc *td = &table_desc[i]; | |
bab86012 | 4161 | query_table_desc__(td, ofproto, i); |
03c72922 BP |
4162 | } |
4163 | } | |
4164 | ||
4165 | /* Function to handle dump-table-desc request. */ | |
4166 | static enum ofperr | |
4167 | handle_table_desc_request(struct ofconn *ofconn, | |
4168 | const struct ofp_header *request) | |
4169 | { | |
4170 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
4171 | struct ofputil_table_desc *table_desc; | |
4172 | struct ovs_list replies; | |
4173 | size_t i; | |
4174 | ||
4175 | query_tables_desc(ofproto, &table_desc); | |
4176 | ofpmp_init(&replies, request); | |
4177 | for (i = 0; i < ofproto->n_tables; i++) { | |
4178 | if (!(ofproto->tables[i].flags & OFTABLE_HIDDEN)) { | |
4179 | ofputil_append_table_desc_reply(&table_desc[i], &replies, | |
4180 | request->version); | |
4181 | } | |
4182 | } | |
4183 | ofconn_send_replies(ofconn, &replies); | |
4184 | free(table_desc); | |
4185 | return 0; | |
4186 | } | |
4187 | ||
6c6eedc5 SJ |
4188 | /* This function determines and sends the vacancy event, based on the value |
4189 | * of current vacancy and threshold vacancy. If the current vacancy is less | |
4190 | * than or equal to vacancy_down, vacancy up events must be enabled, and when | |
4191 | * the current vacancy is greater or equal to vacancy_up, vacancy down events | |
4192 | * must be enabled. */ | |
4193 | static void | |
4194 | send_table_status(struct ofproto *ofproto, uint8_t table_id) | |
4195 | { | |
4196 | struct oftable *t = &ofproto->tables[table_id]; | |
4197 | if (!t->vacancy_event) { | |
4198 | return; | |
4199 | } | |
4200 | ||
4201 | uint8_t vacancy = oftable_vacancy(t); | |
4202 | enum ofp14_table_reason event; | |
4203 | if (vacancy < t->vacancy_down) { | |
4204 | event = OFPTR_VACANCY_DOWN; | |
4205 | } else if (vacancy > t->vacancy_up) { | |
4206 | event = OFPTR_VACANCY_UP; | |
4207 | } else { | |
4208 | return; | |
4209 | } | |
4210 | ||
4211 | if (event == t->vacancy_event) { | |
4212 | struct ofputil_table_desc td; | |
4213 | query_table_desc__(&td, ofproto, table_id); | |
4214 | connmgr_send_table_status(ofproto->connmgr, &td, event); | |
4215 | ||
4216 | t->vacancy_event = (event == OFPTR_VACANCY_DOWN | |
4217 | ? OFPTR_VACANCY_UP | |
4218 | : OFPTR_VACANCY_DOWN); | |
4219 | } | |
4220 | } | |
4221 | ||
abaad8cf | 4222 | static void |
ca6ba700 | 4223 | append_port_stat(struct ofport *port, struct ovs_list *replies) |
abaad8cf | 4224 | { |
f8e4867e | 4225 | struct ofputil_port_stats ops = { .port_no = port->pp.port_no }; |
abaad8cf | 4226 | |
65e0be10 BP |
4227 | calc_duration(port->created, time_msec(), |
4228 | &ops.duration_sec, &ops.duration_nsec); | |
4229 | ||
d295e8e9 JP |
4230 | /* Intentionally ignore return value, since errors will set |
4231 | * 'stats' to all-1s, which is correct for OpenFlow, and | |
abaad8cf | 4232 | * netdev_get_stats() will log errors. */ |
f8e4867e | 4233 | ofproto_port_get_stats(port, &ops.stats); |
971f4b39 | 4234 | netdev_get_custom_stats(port->netdev, &ops.custom_stats); |
f8e4867e SH |
4235 | |
4236 | ofputil_append_port_stat(replies, &ops); | |
971f4b39 MW |
4237 | |
4238 | netdev_free_custom_stats_counters(&ops.custom_stats); | |
abaad8cf JP |
4239 | } |
4240 | ||
70ae4f93 BP |
4241 | static void |
4242 | handle_port_request(struct ofconn *ofconn, | |
4243 | const struct ofp_header *request, ofp_port_t port_no, | |
ca6ba700 | 4244 | void (*cb)(struct ofport *, struct ovs_list *replies)) |
064af421 | 4245 | { |
70ae4f93 | 4246 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
064af421 | 4247 | struct ofport *port; |
ca6ba700 | 4248 | struct ovs_list replies; |
064af421 | 4249 | |
982697a4 | 4250 | ofpmp_init(&replies, request); |
7f05e7ab | 4251 | if (port_no != OFPP_ANY) { |
70ae4f93 | 4252 | port = ofproto_get_port(ofproto, port_no); |
abaad8cf | 4253 | if (port) { |
70ae4f93 | 4254 | cb(port, &replies); |
abaad8cf JP |
4255 | } |
4256 | } else { | |
70ae4f93 BP |
4257 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
4258 | cb(port, &replies); | |
abaad8cf | 4259 | } |
064af421 BP |
4260 | } |
4261 | ||
63f2140a | 4262 | ofconn_send_replies(ofconn, &replies); |
70ae4f93 BP |
4263 | } |
4264 | ||
4265 | static enum ofperr | |
4266 | handle_port_stats_request(struct ofconn *ofconn, | |
4267 | const struct ofp_header *request) | |
4268 | { | |
4269 | ofp_port_t port_no; | |
4270 | enum ofperr error; | |
4271 | ||
4272 | error = ofputil_decode_port_stats_request(request, &port_no); | |
4273 | if (!error) { | |
4274 | handle_port_request(ofconn, request, port_no, append_port_stat); | |
4275 | } | |
4276 | return error; | |
4277 | } | |
4278 | ||
4279 | static void | |
ca6ba700 | 4280 | append_port_desc(struct ofport *port, struct ovs_list *replies) |
70ae4f93 BP |
4281 | { |
4282 | ofputil_append_port_desc_stats_reply(&port->pp, replies); | |
064af421 BP |
4283 | } |
4284 | ||
2be393ed JP |
4285 | static enum ofperr |
4286 | handle_port_desc_stats_request(struct ofconn *ofconn, | |
982697a4 | 4287 | const struct ofp_header *request) |
2be393ed | 4288 | { |
70ae4f93 BP |
4289 | ofp_port_t port_no; |
4290 | enum ofperr error; | |
2be393ed | 4291 | |
70ae4f93 BP |
4292 | error = ofputil_decode_port_desc_stats_request(request, &port_no); |
4293 | if (!error) { | |
4294 | handle_port_request(ofconn, request, port_no, append_port_desc); | |
2be393ed | 4295 | } |
70ae4f93 | 4296 | return error; |
2be393ed JP |
4297 | } |
4298 | ||
98eaac36 JR |
4299 | static uint32_t |
4300 | hash_cookie(ovs_be64 cookie) | |
4301 | { | |
965607c8 | 4302 | return hash_uint64((OVS_FORCE uint64_t)cookie); |
98eaac36 JR |
4303 | } |
4304 | ||
4305 | static void | |
4306 | cookies_insert(struct ofproto *ofproto, struct rule *rule) | |
2c916028 | 4307 | OVS_REQUIRES(ofproto_mutex) |
98eaac36 JR |
4308 | { |
4309 | hindex_insert(&ofproto->cookies, &rule->cookie_node, | |
4310 | hash_cookie(rule->flow_cookie)); | |
4311 | } | |
4312 | ||
4313 | static void | |
4314 | cookies_remove(struct ofproto *ofproto, struct rule *rule) | |
2c916028 | 4315 | OVS_REQUIRES(ofproto_mutex) |
98eaac36 JR |
4316 | { |
4317 | hindex_remove(&ofproto->cookies, &rule->cookie_node); | |
4318 | } | |
4319 | ||
c6ebb8fb | 4320 | static void |
65e0be10 BP |
4321 | calc_duration(long long int start, long long int now, |
4322 | uint32_t *sec, uint32_t *nsec) | |
c6ebb8fb | 4323 | { |
f27f2134 | 4324 | long long int msecs = now - start; |
588cd7b5 BP |
4325 | *sec = msecs / 1000; |
4326 | *nsec = (msecs % 1000) * (1000 * 1000); | |
4327 | } | |
4328 | ||
48266274 | 4329 | /* Checks whether 'table_id' is 0xff or a valid table ID in 'ofproto'. Returns |
554764d1 SH |
4330 | * true if 'table_id' is OK, false otherwise. */ |
4331 | static bool | |
48266274 BP |
4332 | check_table_id(const struct ofproto *ofproto, uint8_t table_id) |
4333 | { | |
554764d1 | 4334 | return table_id == OFPTT_ALL || table_id < ofproto->n_tables; |
48266274 BP |
4335 | } |
4336 | ||
5c67e4af | 4337 | static struct oftable * |
d4ce8a49 | 4338 | next_visible_table(const struct ofproto *ofproto, uint8_t table_id) |
5c67e4af BP |
4339 | { |
4340 | struct oftable *table; | |
4341 | ||
4342 | for (table = &ofproto->tables[table_id]; | |
4343 | table < &ofproto->tables[ofproto->n_tables]; | |
4344 | table++) { | |
4345 | if (!(table->flags & OFTABLE_HIDDEN)) { | |
4346 | return table; | |
4347 | } | |
4348 | } | |
4349 | ||
4350 | return NULL; | |
4351 | } | |
4352 | ||
d0918789 | 4353 | static struct oftable * |
d4ce8a49 | 4354 | first_matching_table(const struct ofproto *ofproto, uint8_t table_id) |
064af421 | 4355 | { |
6c1491fb | 4356 | if (table_id == 0xff) { |
5c67e4af | 4357 | return next_visible_table(ofproto, 0); |
6c1491fb BP |
4358 | } else if (table_id < ofproto->n_tables) { |
4359 | return &ofproto->tables[table_id]; | |
a02e5331 | 4360 | } else { |
6c1491fb | 4361 | return NULL; |
a02e5331 | 4362 | } |
064af421 BP |
4363 | } |
4364 | ||
d0918789 | 4365 | static struct oftable * |
d4ce8a49 BP |
4366 | next_matching_table(const struct ofproto *ofproto, |
4367 | const struct oftable *table, uint8_t table_id) | |
6c1491fb | 4368 | { |
5c67e4af BP |
4369 | return (table_id == 0xff |
4370 | ? next_visible_table(ofproto, (table - ofproto->tables) + 1) | |
6c1491fb BP |
4371 | : NULL); |
4372 | } | |
4373 | ||
d0918789 | 4374 | /* Assigns TABLE to each oftable, in turn, that matches TABLE_ID in OFPROTO: |
6c1491fb BP |
4375 | * |
4376 | * - If TABLE_ID is 0xff, this iterates over every classifier table in | |
5c67e4af | 4377 | * OFPROTO, skipping tables marked OFTABLE_HIDDEN. |
6c1491fb BP |
4378 | * |
4379 | * - If TABLE_ID is the number of a table in OFPROTO, then the loop iterates | |
5c67e4af BP |
4380 | * only once, for that table. (This can be used to access tables marked |
4381 | * OFTABLE_HIDDEN.) | |
6c1491fb | 4382 | * |
48266274 BP |
4383 | * - Otherwise, TABLE_ID isn't valid for OFPROTO, so the loop won't be |
4384 | * entered at all. (Perhaps you should have validated TABLE_ID with | |
4385 | * check_table_id().) | |
6c1491fb BP |
4386 | * |
4387 | * All parameters are evaluated multiple times. | |
4388 | */ | |
d0918789 BP |
4389 | #define FOR_EACH_MATCHING_TABLE(TABLE, TABLE_ID, OFPROTO) \ |
4390 | for ((TABLE) = first_matching_table(OFPROTO, TABLE_ID); \ | |
4391 | (TABLE) != NULL; \ | |
4392 | (TABLE) = next_matching_table(OFPROTO, TABLE, TABLE_ID)) | |
6c1491fb | 4393 | |
a9b22b7f BP |
4394 | /* Initializes 'criteria' in a straightforward way based on the other |
4395 | * parameters. | |
4396 | * | |
dd51dae2 BP |
4397 | * By default, the criteria include flows that are read-only, on the assumption |
4398 | * that the collected flows won't be modified. Call rule_criteria_require_rw() | |
4399 | * if flows will be modified. | |
4400 | * | |
a9b22b7f BP |
4401 | * For "loose" matching, the 'priority' parameter is unimportant and may be |
4402 | * supplied as 0. */ | |
4403 | static void | |
4404 | rule_criteria_init(struct rule_criteria *criteria, uint8_t table_id, | |
6a6b7060 | 4405 | const struct minimatch *match, int priority, |
44e0c35d | 4406 | ovs_version_t version, ovs_be64 cookie, |
18721c4a JR |
4407 | ovs_be64 cookie_mask, ofp_port_t out_port, |
4408 | uint32_t out_group) | |
a9b22b7f BP |
4409 | { |
4410 | criteria->table_id = table_id; | |
6a6b7060 | 4411 | cls_rule_init_from_minimatch(&criteria->cr, match, priority); |
bd53aa17 | 4412 | criteria->version = version; |
a9b22b7f BP |
4413 | criteria->cookie = cookie; |
4414 | criteria->cookie_mask = cookie_mask; | |
4415 | criteria->out_port = out_port; | |
4416 | criteria->out_group = out_group; | |
dd51dae2 BP |
4417 | |
4418 | /* We ordinarily want to skip hidden rules, but there has to be a way for | |
4419 | * code internal to OVS to modify and delete them, so if the criteria | |
4420 | * specify a priority that can only be for a hidden flow, then allow hidden | |
4421 | * rules to be selected. (This doesn't allow OpenFlow clients to meddle | |
4422 | * with hidden flows because OpenFlow uses only a 16-bit field to specify | |
4423 | * priority.) */ | |
4424 | criteria->include_hidden = priority > UINT16_MAX; | |
4425 | ||
4426 | /* We assume that the criteria are being used to collect flows for reading | |
4427 | * but not modification. Thus, we should collect read-only flows. */ | |
4428 | criteria->include_readonly = true; | |
4429 | } | |
4430 | ||
4431 | /* By default, criteria initialized by rule_criteria_init() will match flows | |
4432 | * that are read-only, on the assumption that the collected flows won't be | |
4433 | * modified. Call this function to match only flows that are be modifiable. | |
4434 | * | |
4435 | * Specify 'can_write_readonly' as false in ordinary circumstances, true if the | |
4436 | * caller has special privileges that allow it to modify even "read-only" | |
4437 | * flows. */ | |
4438 | static void | |
4439 | rule_criteria_require_rw(struct rule_criteria *criteria, | |
4440 | bool can_write_readonly) | |
4441 | { | |
4442 | criteria->include_readonly = can_write_readonly; | |
a9b22b7f BP |
4443 | } |
4444 | ||
4445 | static void | |
4446 | rule_criteria_destroy(struct rule_criteria *criteria) | |
4447 | { | |
4448 | cls_rule_destroy(&criteria->cr); | |
5bacd5cd | 4449 | criteria->version = OVS_VERSION_NOT_REMOVED; /* Mark as destroyed. */ |
a9b22b7f BP |
4450 | } |
4451 | ||
39c94593 JR |
4452 | /* Schedules postponed removal of rules, destroys 'rules'. */ |
4453 | static void | |
cc099268 | 4454 | remove_rules_postponed(struct rule_collection *rules) |
39c94593 JR |
4455 | OVS_REQUIRES(ofproto_mutex) |
4456 | { | |
fe59694b JR |
4457 | if (rule_collection_n(rules) > 0) { |
4458 | if (rule_collection_n(rules) == 1) { | |
4459 | ovsrcu_postpone(remove_rule_rcu, rule_collection_rules(rules)[0]); | |
4460 | rule_collection_init(rules); | |
39c94593 JR |
4461 | } else { |
4462 | ovsrcu_postpone(remove_rules_rcu, rule_collection_detach(rules)); | |
4463 | } | |
4464 | } | |
4465 | } | |
4466 | ||
5d08a275 JR |
4467 | /* Schedules postponed removal of groups, destroys 'groups'. */ |
4468 | static void | |
4469 | remove_groups_postponed(struct group_collection *groups) | |
4470 | OVS_REQUIRES(ofproto_mutex) | |
4471 | { | |
4472 | if (group_collection_n(groups) > 0) { | |
4473 | if (group_collection_n(groups) == 1) { | |
4474 | ovsrcu_postpone(remove_group_rcu, | |
4475 | group_collection_groups(groups)[0]); | |
4476 | group_collection_init(groups); | |
4477 | } else { | |
4478 | ovsrcu_postpone(remove_groups_rcu, | |
4479 | group_collection_detach(groups)); | |
4480 | } | |
4481 | } | |
4482 | } | |
4483 | ||
dd51dae2 BP |
4484 | /* Checks whether 'rule' matches 'c' and, if so, adds it to 'rules'. This |
4485 | * function verifies most of the criteria in 'c' itself, but the caller must | |
4486 | * check 'c->cr' itself. | |
4487 | * | |
2b7b1427 | 4488 | * Rules that have already been marked for removal are not collected. |
ce59413f | 4489 | * |
dd51dae2 | 4490 | * Increments '*n_readonly' if 'rule' wasn't added because it's read-only (and |
b20f4073 BP |
4491 | * 'c' only includes modifiable rules). */ |
4492 | static void | |
a9b22b7f | 4493 | collect_rule(struct rule *rule, const struct rule_criteria *c, |
dd51dae2 | 4494 | struct rule_collection *rules, size_t *n_readonly) |
15aaf599 | 4495 | OVS_REQUIRES(ofproto_mutex) |
6c1d7642 | 4496 | { |
dd51dae2 BP |
4497 | if ((c->table_id == rule->table_id || c->table_id == 0xff) |
4498 | && ofproto_rule_has_out_port(rule, c->out_port) | |
4499 | && ofproto_rule_has_out_group(rule, c->out_group) | |
4500 | && !((rule->flow_cookie ^ c->cookie) & c->cookie_mask) | |
ce59413f | 4501 | && (!rule_is_hidden(rule) || c->include_hidden) |
bd53aa17 | 4502 | && cls_rule_visible_in_version(&rule->cr, c->version)) { |
dd51dae2 | 4503 | /* Rule matches all the criteria... */ |
834fe5cb | 4504 | if (!rule_is_readonly(rule) || c->include_readonly) { |
dd51dae2 | 4505 | /* ...add it. */ |
a8e547c1 | 4506 | rule_collection_add(rules, rule); |
dd51dae2 BP |
4507 | } else { |
4508 | /* ...except it's read-only. */ | |
4509 | ++*n_readonly; | |
6c1d7642 | 4510 | } |
6c1d7642 BP |
4511 | } |
4512 | } | |
4513 | ||
a9b22b7f BP |
4514 | /* Searches 'ofproto' for rules that match the criteria in 'criteria'. Matches |
4515 | * on classifiers rules are done in the "loose" way required for OpenFlow | |
4516 | * OFPFC_MODIFY and OFPFC_DELETE requests. Puts the selected rules on list | |
9ed18e46 BP |
4517 | * 'rules'. |
4518 | * | |
9ed18e46 | 4519 | * Returns 0 on success, otherwise an OpenFlow error code. */ |
90bf1e07 | 4520 | static enum ofperr |
a9b22b7f | 4521 | collect_rules_loose(struct ofproto *ofproto, |
a8e547c1 BP |
4522 | const struct rule_criteria *criteria, |
4523 | struct rule_collection *rules) | |
15aaf599 | 4524 | OVS_REQUIRES(ofproto_mutex) |
9ed18e46 | 4525 | { |
d0918789 | 4526 | struct oftable *table; |
554764d1 | 4527 | enum ofperr error = 0; |
dd51dae2 | 4528 | size_t n_readonly = 0; |
48266274 | 4529 | |
a8e547c1 BP |
4530 | rule_collection_init(rules); |
4531 | ||
554764d1 SH |
4532 | if (!check_table_id(ofproto, criteria->table_id)) { |
4533 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
a8e547c1 | 4534 | goto exit; |
48266274 | 4535 | } |
9ed18e46 | 4536 | |
b8266395 | 4537 | if (criteria->cookie_mask == OVS_BE64_MAX) { |
98eaac36 JR |
4538 | struct rule *rule; |
4539 | ||
a9b22b7f BP |
4540 | HINDEX_FOR_EACH_WITH_HASH (rule, cookie_node, |
4541 | hash_cookie(criteria->cookie), | |
98eaac36 | 4542 | &ofproto->cookies) { |
a9b22b7f | 4543 | if (cls_rule_is_loose_match(&rule->cr, &criteria->cr.match)) { |
b20f4073 | 4544 | collect_rule(rule, criteria, rules, &n_readonly); |
98eaac36 JR |
4545 | } |
4546 | } | |
6c1d7642 | 4547 | } else { |
a9b22b7f | 4548 | FOR_EACH_MATCHING_TABLE (table, criteria->table_id, ofproto) { |
6c1d7642 | 4549 | struct rule *rule; |
9ed18e46 | 4550 | |
bd53aa17 JR |
4551 | CLS_FOR_EACH_TARGET (rule, cr, &table->cls, &criteria->cr, |
4552 | criteria->version) { | |
b20f4073 | 4553 | collect_rule(rule, criteria, rules, &n_readonly); |
9ed18e46 BP |
4554 | } |
4555 | } | |
4556 | } | |
48d28ac1 | 4557 | |
a8e547c1 | 4558 | exit: |
fe59694b | 4559 | if (!error && !rule_collection_n(rules) && n_readonly) { |
dd51dae2 BP |
4560 | /* We didn't find any rules to modify. We did find some read-only |
4561 | * rules that we're not allowed to modify, so report that. */ | |
4562 | error = OFPERR_OFPBRC_EPERM; | |
4563 | } | |
a8e547c1 BP |
4564 | if (error) { |
4565 | rule_collection_destroy(rules); | |
4566 | } | |
48d28ac1 | 4567 | return error; |
9ed18e46 BP |
4568 | } |
4569 | ||
a9b22b7f BP |
4570 | /* Searches 'ofproto' for rules that match the criteria in 'criteria'. Matches |
4571 | * on classifiers rules are done in the "strict" way required for OpenFlow | |
4572 | * OFPFC_MODIFY_STRICT and OFPFC_DELETE_STRICT requests. Puts the selected | |
4573 | * rules on list 'rules'. | |
9ed18e46 | 4574 | * |
9ed18e46 | 4575 | * Returns 0 on success, otherwise an OpenFlow error code. */ |
90bf1e07 | 4576 | static enum ofperr |
a9b22b7f | 4577 | collect_rules_strict(struct ofproto *ofproto, |
a8e547c1 BP |
4578 | const struct rule_criteria *criteria, |
4579 | struct rule_collection *rules) | |
15aaf599 | 4580 | OVS_REQUIRES(ofproto_mutex) |
9ed18e46 | 4581 | { |
d0918789 | 4582 | struct oftable *table; |
dd51dae2 | 4583 | size_t n_readonly = 0; |
d51c8b71 | 4584 | enum ofperr error = 0; |
48266274 | 4585 | |
a8e547c1 BP |
4586 | rule_collection_init(rules); |
4587 | ||
554764d1 SH |
4588 | if (!check_table_id(ofproto, criteria->table_id)) { |
4589 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
a8e547c1 | 4590 | goto exit; |
48266274 | 4591 | } |
9ed18e46 | 4592 | |
b8266395 | 4593 | if (criteria->cookie_mask == OVS_BE64_MAX) { |
98eaac36 JR |
4594 | struct rule *rule; |
4595 | ||
a9b22b7f BP |
4596 | HINDEX_FOR_EACH_WITH_HASH (rule, cookie_node, |
4597 | hash_cookie(criteria->cookie), | |
98eaac36 | 4598 | &ofproto->cookies) { |
a9b22b7f | 4599 | if (cls_rule_equal(&rule->cr, &criteria->cr)) { |
b20f4073 | 4600 | collect_rule(rule, criteria, rules, &n_readonly); |
98eaac36 JR |
4601 | } |
4602 | } | |
6c1d7642 | 4603 | } else { |
a9b22b7f | 4604 | FOR_EACH_MATCHING_TABLE (table, criteria->table_id, ofproto) { |
6c1d7642 | 4605 | struct rule *rule; |
9ed18e46 | 4606 | |
a9b22b7f | 4607 | rule = rule_from_cls_rule(classifier_find_rule_exactly( |
bd53aa17 JR |
4608 | &table->cls, &criteria->cr, |
4609 | criteria->version)); | |
6c1d7642 | 4610 | if (rule) { |
b20f4073 | 4611 | collect_rule(rule, criteria, rules, &n_readonly); |
9ed18e46 BP |
4612 | } |
4613 | } | |
4614 | } | |
48d28ac1 | 4615 | |
a8e547c1 | 4616 | exit: |
fe59694b | 4617 | if (!error && !rule_collection_n(rules) && n_readonly) { |
b20f4073 BP |
4618 | /* We didn't find any rules to modify. We did find some read-only |
4619 | * rules that we're not allowed to modify, so report that. */ | |
4620 | error = OFPERR_OFPBRC_EPERM; | |
4621 | } | |
a8e547c1 BP |
4622 | if (error) { |
4623 | rule_collection_destroy(rules); | |
4624 | } | |
6c1d7642 | 4625 | return error; |
9ed18e46 BP |
4626 | } |
4627 | ||
f27f2134 BP |
4628 | /* Returns 'age_ms' (a duration in milliseconds), converted to seconds and |
4629 | * forced into the range of a uint16_t. */ | |
4630 | static int | |
4631 | age_secs(long long int age_ms) | |
4632 | { | |
4633 | return (age_ms < 0 ? 0 | |
4634 | : age_ms >= UINT16_MAX * 1000 ? UINT16_MAX | |
4635 | : (unsigned int) age_ms / 1000); | |
4636 | } | |
4637 | ||
90bf1e07 | 4638 | static enum ofperr |
63f2140a | 4639 | handle_flow_stats_request(struct ofconn *ofconn, |
982697a4 | 4640 | const struct ofp_header *request) |
15aaf599 | 4641 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 4642 | { |
64ff1d96 | 4643 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
81d1ea94 | 4644 | struct ofputil_flow_stats_request fsr; |
a9b22b7f | 4645 | struct rule_criteria criteria; |
a8e547c1 | 4646 | struct rule_collection rules; |
ca6ba700 | 4647 | struct ovs_list replies; |
90bf1e07 | 4648 | enum ofperr error; |
09246b99 | 4649 | |
8d8ab6c2 | 4650 | error = ofputil_decode_flow_stats_request(&fsr, request, |
3cddeff0 YHW |
4651 | ofproto_get_tun_tab(ofproto), |
4652 | &ofproto->vl_mff_map); | |
09246b99 BP |
4653 | if (error) { |
4654 | return error; | |
4655 | } | |
4656 | ||
6a6b7060 BP |
4657 | struct minimatch match; |
4658 | minimatch_init(&match, &fsr.match); | |
4659 | rule_criteria_init(&criteria, fsr.table_id, &match, 0, OVS_VERSION_MAX, | |
2b7b1427 JR |
4660 | fsr.cookie, fsr.cookie_mask, fsr.out_port, |
4661 | fsr.out_group); | |
6a6b7060 | 4662 | minimatch_destroy(&match); |
15aaf599 BP |
4663 | |
4664 | ovs_mutex_lock(&ofproto_mutex); | |
a9b22b7f BP |
4665 | error = collect_rules_loose(ofproto, &criteria, &rules); |
4666 | rule_criteria_destroy(&criteria); | |
15aaf599 BP |
4667 | if (!error) { |
4668 | rule_collection_ref(&rules); | |
4669 | } | |
4670 | ovs_mutex_unlock(&ofproto_mutex); | |
4671 | ||
9ed18e46 BP |
4672 | if (error) { |
4673 | return error; | |
4674 | } | |
5ecc9d81 | 4675 | |
982697a4 | 4676 | ofpmp_init(&replies, request); |
fe59694b JR |
4677 | struct rule *rule; |
4678 | RULE_COLLECTION_FOR_EACH (rule, &rules) { | |
f27f2134 | 4679 | long long int now = time_msec(); |
9ed18e46 | 4680 | struct ofputil_flow_stats fs; |
16441315 | 4681 | struct pkt_stats stats; |
15aaf599 | 4682 | long long int created, used, modified; |
dc723c44 | 4683 | const struct rule_actions *actions; |
15aaf599 | 4684 | enum ofputil_flow_mod_flags flags; |
a3779dbc | 4685 | |
d10976b7 | 4686 | ovs_mutex_lock(&rule->mutex); |
15aaf599 | 4687 | fs.cookie = rule->flow_cookie; |
a3779dbc EJ |
4688 | fs.idle_timeout = rule->idle_timeout; |
4689 | fs.hard_timeout = rule->hard_timeout; | |
ca26eb44 | 4690 | fs.importance = rule->importance; |
15aaf599 | 4691 | created = rule->created; |
15aaf599 | 4692 | modified = rule->modified; |
06a0f3e2 | 4693 | actions = rule_get_actions(rule); |
15aaf599 | 4694 | flags = rule->flags; |
d10976b7 | 4695 | ovs_mutex_unlock(&rule->mutex); |
a3779dbc | 4696 | |
16441315 | 4697 | ofproto->ofproto_class->rule_get_stats(rule, &stats, &used); |
4698 | fs.packet_count = stats.n_packets; | |
4699 | fs.byte_count = stats.n_bytes; | |
dc437090 | 4700 | |
15aaf599 BP |
4701 | minimatch_expand(&rule->cr.match, &fs.match); |
4702 | fs.table_id = rule->table_id; | |
4703 | calc_duration(created, now, &fs.duration_sec, &fs.duration_nsec); | |
4704 | fs.priority = rule->cr.priority; | |
4705 | fs.idle_age = age_secs(now - used); | |
4706 | fs.hard_age = age_secs(now - modified); | |
15aaf599 BP |
4707 | fs.ofpacts = actions->ofpacts; |
4708 | fs.ofpacts_len = actions->ofpacts_len; | |
3f517bcd | 4709 | |
15aaf599 | 4710 | fs.flags = flags; |
8d8ab6c2 JG |
4711 | ofputil_append_flow_stats_reply(&fs, &replies, |
4712 | ofproto_get_tun_tab(ofproto)); | |
3c4486a5 | 4713 | } |
15aaf599 BP |
4714 | |
4715 | rule_collection_unref(&rules); | |
a8e547c1 BP |
4716 | rule_collection_destroy(&rules); |
4717 | ||
63f2140a | 4718 | ofconn_send_replies(ofconn, &replies); |
5ecc9d81 | 4719 | |
09246b99 BP |
4720 | return 0; |
4721 | } | |
4722 | ||
4f2cad2c | 4723 | static void |
16441315 | 4724 | flow_stats_ds(struct ofproto *ofproto, struct rule *rule, struct ds *results, |
4725 | bool offload_stats) | |
4f2cad2c | 4726 | { |
16441315 | 4727 | struct pkt_stats stats; |
dc723c44 | 4728 | const struct rule_actions *actions; |
dc437090 | 4729 | long long int created, used; |
4f2cad2c | 4730 | |
16441315 | 4731 | rule->ofproto->ofproto_class->rule_get_stats(rule, &stats, &used); |
4f2cad2c | 4732 | |
15aaf599 | 4733 | ovs_mutex_lock(&rule->mutex); |
06a0f3e2 | 4734 | actions = rule_get_actions(rule); |
15aaf599 BP |
4735 | created = rule->created; |
4736 | ovs_mutex_unlock(&rule->mutex); | |
4737 | ||
6c1491fb BP |
4738 | if (rule->table_id != 0) { |
4739 | ds_put_format(results, "table_id=%"PRIu8", ", rule->table_id); | |
4740 | } | |
15aaf599 | 4741 | ds_put_format(results, "duration=%llds, ", (time_msec() - created) / 1000); |
16441315 | 4742 | ds_put_format(results, "n_packets=%"PRIu64", ", stats.n_packets); |
4743 | ds_put_format(results, "n_bytes=%"PRIu64", ", stats.n_bytes); | |
4744 | if (offload_stats) { | |
4745 | ds_put_format(results, "n_offload_packets=%"PRIu64", ", | |
4746 | stats.n_offload_packets); | |
4747 | ds_put_format(results, "n_offload_bytes=%"PRIu64", ", | |
4748 | stats.n_offload_bytes); | |
4749 | } | |
50f96b10 | 4750 | cls_rule_format(&rule->cr, ofproto_get_tun_tab(ofproto), NULL, results); |
a5df0e72 | 4751 | ds_put_char(results, ','); |
15aaf599 | 4752 | |
455ecd77 | 4753 | ds_put_cstr(results, "actions="); |
efefbcae BP |
4754 | struct ofpact_format_params fp = { .s = results }; |
4755 | ofpacts_format(actions->ofpacts, actions->ofpacts_len, &fp); | |
15aaf599 | 4756 | |
4f2cad2c JP |
4757 | ds_put_cstr(results, "\n"); |
4758 | } | |
4759 | ||
d295e8e9 | 4760 | /* Adds a pretty-printed description of all flows to 'results', including |
ee8b231c | 4761 | * hidden flows (e.g., set up by in-band control). */ |
4f2cad2c | 4762 | void |
16441315 | 4763 | ofproto_get_all_flows(struct ofproto *p, struct ds *results, |
4764 | bool offload_stats) | |
4f2cad2c | 4765 | { |
d0918789 | 4766 | struct oftable *table; |
6c1491fb | 4767 | |
d0918789 | 4768 | OFPROTO_FOR_EACH_TABLE (table, p) { |
6c1491fb | 4769 | struct rule *rule; |
064af421 | 4770 | |
5f0476ce | 4771 | CLS_FOR_EACH (rule, cr, &table->cls) { |
16441315 | 4772 | flow_stats_ds(p, rule, results, offload_stats); |
6c1491fb | 4773 | } |
064af421 | 4774 | } |
064af421 BP |
4775 | } |
4776 | ||
b5827b24 BP |
4777 | /* Obtains the NetFlow engine type and engine ID for 'ofproto' into |
4778 | * '*engine_type' and '*engine_id', respectively. */ | |
4779 | void | |
4780 | ofproto_get_netflow_ids(const struct ofproto *ofproto, | |
4781 | uint8_t *engine_type, uint8_t *engine_id) | |
4782 | { | |
abe529af | 4783 | ofproto->ofproto_class->get_netflow_ids(ofproto, engine_type, engine_id); |
b5827b24 BP |
4784 | } |
4785 | ||
8f5514fe AW |
4786 | /* Checks the status change of CFM on 'ofport'. |
4787 | * | |
4788 | * Returns true if 'ofproto_class' does not support 'cfm_status_changed'. */ | |
4789 | bool | |
4790 | ofproto_port_cfm_status_changed(struct ofproto *ofproto, ofp_port_t ofp_port) | |
4791 | { | |
4792 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
4793 | return (ofport && ofproto->ofproto_class->cfm_status_changed | |
4794 | ? ofproto->ofproto_class->cfm_status_changed(ofport) | |
4795 | : true); | |
4796 | } | |
4797 | ||
88bf179a AW |
4798 | /* Checks the status of CFM configured on 'ofp_port' within 'ofproto'. |
4799 | * Returns 0 if the port's CFM status was successfully stored into | |
4800 | * '*status'. Returns positive errno if the port did not have CFM | |
8f5514fe | 4801 | * configured. |
9a9e3786 | 4802 | * |
88bf179a AW |
4803 | * The caller must provide and own '*status', and must free 'status->rmps'. |
4804 | * '*status' is indeterminate if the return value is non-zero. */ | |
4805 | int | |
4e022ec0 | 4806 | ofproto_port_get_cfm_status(const struct ofproto *ofproto, ofp_port_t ofp_port, |
685acfd9 | 4807 | struct cfm_status *status) |
3967a833 MM |
4808 | { |
4809 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
88bf179a AW |
4810 | return (ofport && ofproto->ofproto_class->get_cfm_status |
4811 | ? ofproto->ofproto_class->get_cfm_status(ofport, status) | |
4812 | : EOPNOTSUPP); | |
3967a833 MM |
4813 | } |
4814 | ||
90bf1e07 | 4815 | static enum ofperr |
76c93b22 | 4816 | handle_aggregate_stats_request(struct ofconn *ofconn, |
982697a4 | 4817 | const struct ofp_header *oh) |
15aaf599 | 4818 | OVS_EXCLUDED(ofproto_mutex) |
27d34fce | 4819 | { |
76c93b22 | 4820 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
81d1ea94 | 4821 | struct ofputil_flow_stats_request request; |
76c93b22 | 4822 | struct ofputil_aggregate_stats stats; |
5e9d0469 | 4823 | bool unknown_packets, unknown_bytes; |
a9b22b7f | 4824 | struct rule_criteria criteria; |
a8e547c1 | 4825 | struct rule_collection rules; |
76c93b22 | 4826 | struct ofpbuf *reply; |
90bf1e07 | 4827 | enum ofperr error; |
27d34fce | 4828 | |
8d8ab6c2 | 4829 | error = ofputil_decode_flow_stats_request(&request, oh, |
3cddeff0 YHW |
4830 | ofproto_get_tun_tab(ofproto), |
4831 | &ofproto->vl_mff_map); | |
76c93b22 BP |
4832 | if (error) { |
4833 | return error; | |
4834 | } | |
5ecc9d81 | 4835 | |
6a6b7060 BP |
4836 | struct minimatch match; |
4837 | minimatch_init(&match, &request.match); | |
4838 | rule_criteria_init(&criteria, request.table_id, &match, 0, | |
44e0c35d | 4839 | OVS_VERSION_MAX, request.cookie, request.cookie_mask, |
a9b22b7f | 4840 | request.out_port, request.out_group); |
6a6b7060 | 4841 | minimatch_destroy(&match); |
15aaf599 BP |
4842 | |
4843 | ovs_mutex_lock(&ofproto_mutex); | |
a9b22b7f BP |
4844 | error = collect_rules_loose(ofproto, &criteria, &rules); |
4845 | rule_criteria_destroy(&criteria); | |
15aaf599 BP |
4846 | if (!error) { |
4847 | rule_collection_ref(&rules); | |
4848 | } | |
4849 | ovs_mutex_unlock(&ofproto_mutex); | |
4850 | ||
9ed18e46 BP |
4851 | if (error) { |
4852 | return error; | |
4853 | } | |
3c4486a5 | 4854 | |
9ed18e46 | 4855 | memset(&stats, 0, sizeof stats); |
5e9d0469 | 4856 | unknown_packets = unknown_bytes = false; |
fe59694b JR |
4857 | |
4858 | struct rule *rule; | |
4859 | RULE_COLLECTION_FOR_EACH (rule, &rules) { | |
16441315 | 4860 | struct pkt_stats pkt_stats; |
dc437090 | 4861 | long long int used; |
5ecc9d81 | 4862 | |
16441315 | 4863 | ofproto->ofproto_class->rule_get_stats(rule, &pkt_stats, &used); |
5ecc9d81 | 4864 | |
16441315 | 4865 | if (pkt_stats.n_packets == UINT64_MAX) { |
5e9d0469 BP |
4866 | unknown_packets = true; |
4867 | } else { | |
16441315 | 4868 | stats.packet_count += pkt_stats.n_packets; |
5e9d0469 BP |
4869 | } |
4870 | ||
16441315 | 4871 | if (pkt_stats.n_bytes == UINT64_MAX) { |
5e9d0469 BP |
4872 | unknown_bytes = true; |
4873 | } else { | |
16441315 | 4874 | stats.byte_count += pkt_stats.n_bytes; |
5e9d0469 BP |
4875 | } |
4876 | ||
9ed18e46 | 4877 | stats.flow_count++; |
3c4486a5 | 4878 | } |
5e9d0469 BP |
4879 | if (unknown_packets) { |
4880 | stats.packet_count = UINT64_MAX; | |
4881 | } | |
4882 | if (unknown_bytes) { | |
4883 | stats.byte_count = UINT64_MAX; | |
4884 | } | |
27d34fce | 4885 | |
15aaf599 | 4886 | rule_collection_unref(&rules); |
a8e547c1 BP |
4887 | rule_collection_destroy(&rules); |
4888 | ||
982697a4 | 4889 | reply = ofputil_encode_aggregate_stats_reply(&stats, oh); |
76c93b22 | 4890 | ofconn_send_reply(ofconn, reply); |
09246b99 BP |
4891 | |
4892 | return 0; | |
4893 | } | |
4894 | ||
c1c9c9c4 | 4895 | struct queue_stats_cbdata { |
ca0f572c | 4896 | struct ofport *ofport; |
ca6ba700 | 4897 | struct ovs_list replies; |
6dc34a0d | 4898 | long long int now; |
c1c9c9c4 BP |
4899 | }; |
4900 | ||
4901 | static void | |
db9220c3 | 4902 | put_queue_stats(struct queue_stats_cbdata *cbdata, uint32_t queue_id, |
c1c9c9c4 BP |
4903 | const struct netdev_queue_stats *stats) |
4904 | { | |
6dc34a0d | 4905 | struct ofputil_queue_stats oqs; |
c1c9c9c4 | 4906 | |
6dc34a0d BP |
4907 | oqs.port_no = cbdata->ofport->pp.port_no; |
4908 | oqs.queue_id = queue_id; | |
4909 | oqs.tx_bytes = stats->tx_bytes; | |
4910 | oqs.tx_packets = stats->tx_packets; | |
4911 | oqs.tx_errors = stats->tx_errors; | |
4912 | if (stats->created != LLONG_MIN) { | |
4913 | calc_duration(stats->created, cbdata->now, | |
4914 | &oqs.duration_sec, &oqs.duration_nsec); | |
4915 | } else { | |
4916 | oqs.duration_sec = oqs.duration_nsec = UINT32_MAX; | |
4917 | } | |
64626975 | 4918 | ofputil_append_queue_stat(&cbdata->replies, &oqs); |
c1c9c9c4 BP |
4919 | } |
4920 | ||
4921 | static void | |
db9220c3 | 4922 | handle_queue_stats_dump_cb(uint32_t queue_id, |
c1c9c9c4 BP |
4923 | struct netdev_queue_stats *stats, |
4924 | void *cbdata_) | |
4925 | { | |
4926 | struct queue_stats_cbdata *cbdata = cbdata_; | |
4927 | ||
4928 | put_queue_stats(cbdata, queue_id, stats); | |
4929 | } | |
4930 | ||
0414d158 | 4931 | static enum ofperr |
ca0f572c | 4932 | handle_queue_stats_for_port(struct ofport *port, uint32_t queue_id, |
c1c9c9c4 BP |
4933 | struct queue_stats_cbdata *cbdata) |
4934 | { | |
ca0f572c | 4935 | cbdata->ofport = port; |
c1c9c9c4 BP |
4936 | if (queue_id == OFPQ_ALL) { |
4937 | netdev_dump_queue_stats(port->netdev, | |
4938 | handle_queue_stats_dump_cb, cbdata); | |
4939 | } else { | |
4940 | struct netdev_queue_stats stats; | |
4941 | ||
1ac788f6 BP |
4942 | if (!netdev_get_queue_stats(port->netdev, queue_id, &stats)) { |
4943 | put_queue_stats(cbdata, queue_id, &stats); | |
0414d158 BP |
4944 | } else { |
4945 | return OFPERR_OFPQOFC_BAD_QUEUE; | |
1ac788f6 | 4946 | } |
c1c9c9c4 | 4947 | } |
0414d158 | 4948 | return 0; |
c1c9c9c4 BP |
4949 | } |
4950 | ||
90bf1e07 | 4951 | static enum ofperr |
63f2140a | 4952 | handle_queue_stats_request(struct ofconn *ofconn, |
982697a4 | 4953 | const struct ofp_header *rq) |
c1c9c9c4 | 4954 | { |
64ff1d96 | 4955 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
c1c9c9c4 | 4956 | struct queue_stats_cbdata cbdata; |
0414d158 | 4957 | struct ofport *port; |
0414d158 | 4958 | enum ofperr error; |
64626975 | 4959 | struct ofputil_queue_stats_request oqsr; |
c1c9c9c4 | 4960 | |
c1c9c9c4 BP |
4961 | COVERAGE_INC(ofproto_queue_req); |
4962 | ||
982697a4 | 4963 | ofpmp_init(&cbdata.replies, rq); |
6dc34a0d | 4964 | cbdata.now = time_msec(); |
c1c9c9c4 | 4965 | |
64626975 SH |
4966 | error = ofputil_decode_queue_stats_request(rq, &oqsr); |
4967 | if (error) { | |
4968 | return error; | |
4969 | } | |
4970 | ||
7f05e7ab | 4971 | if (oqsr.port_no == OFPP_ANY) { |
0414d158 | 4972 | error = OFPERR_OFPQOFC_BAD_QUEUE; |
4e8e4213 | 4973 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
64626975 | 4974 | if (!handle_queue_stats_for_port(port, oqsr.queue_id, &cbdata)) { |
0414d158 BP |
4975 | error = 0; |
4976 | } | |
c1c9c9c4 | 4977 | } |
0414d158 | 4978 | } else { |
64626975 | 4979 | port = ofproto_get_port(ofproto, oqsr.port_no); |
0414d158 | 4980 | error = (port |
64626975 | 4981 | ? handle_queue_stats_for_port(port, oqsr.queue_id, &cbdata) |
0414d158 BP |
4982 | : OFPERR_OFPQOFC_BAD_PORT); |
4983 | } | |
4984 | if (!error) { | |
4985 | ofconn_send_replies(ofconn, &cbdata.replies); | |
c1c9c9c4 | 4986 | } else { |
63f2140a | 4987 | ofpbuf_list_delete(&cbdata.replies); |
c1c9c9c4 | 4988 | } |
c1c9c9c4 | 4989 | |
0414d158 | 4990 | return error; |
c1c9c9c4 | 4991 | } |
7ee20df1 | 4992 | |
2e31a9b8 | 4993 | static enum ofperr |
6787a49f | 4994 | evict_rules_from_table(struct oftable *table) |
15aaf599 | 4995 | OVS_REQUIRES(ofproto_mutex) |
2e31a9b8 | 4996 | { |
802f84ff JR |
4997 | enum ofperr error = 0; |
4998 | struct rule_collection rules; | |
6787a49f | 4999 | unsigned int count = table->n_flows; |
802f84ff JR |
5000 | unsigned int max_flows = table->max_flows; |
5001 | ||
5002 | rule_collection_init(&rules); | |
5003 | ||
5004 | while (count-- > max_flows) { | |
2e31a9b8 | 5005 | struct rule *rule; |
8037acb4 | 5006 | |
2e31a9b8 | 5007 | if (!choose_rule_to_evict(table, &rule)) { |
802f84ff JR |
5008 | error = OFPERR_OFPFMFC_TABLE_FULL; |
5009 | break; | |
2e31a9b8 | 5010 | } else { |
802f84ff JR |
5011 | eviction_group_remove_rule(rule); |
5012 | rule_collection_add(&rules, rule); | |
2e31a9b8 | 5013 | } |
8037acb4 | 5014 | } |
802f84ff | 5015 | delete_flows__(&rules, OFPRR_EVICTION, NULL); |
2e31a9b8 | 5016 | |
802f84ff | 5017 | return error; |
8037acb4 BP |
5018 | } |
5019 | ||
18080541 BP |
5020 | static void |
5021 | get_conjunctions(const struct ofputil_flow_mod *fm, | |
5022 | struct cls_conjunction **conjsp, size_t *n_conjsp) | |
18080541 BP |
5023 | { |
5024 | struct cls_conjunction *conjs = NULL; | |
5025 | int n_conjs = 0; | |
5026 | ||
f08e39dd BP |
5027 | const struct ofpact *ofpact; |
5028 | OFPACT_FOR_EACH (ofpact, fm->ofpacts, fm->ofpacts_len) { | |
5029 | if (ofpact->type == OFPACT_CONJUNCTION) { | |
18080541 | 5030 | n_conjs++; |
f08e39dd BP |
5031 | } else if (ofpact->type != OFPACT_NOTE) { |
5032 | /* "conjunction" may appear with "note" actions but not with any | |
5033 | * other type of actions. */ | |
5034 | ovs_assert(!n_conjs); | |
5035 | break; | |
18080541 | 5036 | } |
f08e39dd BP |
5037 | } |
5038 | if (n_conjs) { | |
5039 | int i = 0; | |
18080541 BP |
5040 | |
5041 | conjs = xzalloc(n_conjs * sizeof *conjs); | |
18080541 | 5042 | OFPACT_FOR_EACH (ofpact, fm->ofpacts, fm->ofpacts_len) { |
f08e39dd BP |
5043 | if (ofpact->type == OFPACT_CONJUNCTION) { |
5044 | struct ofpact_conjunction *oc = ofpact_get_CONJUNCTION(ofpact); | |
5045 | conjs[i].clause = oc->clause; | |
5046 | conjs[i].n_clauses = oc->n_clauses; | |
5047 | conjs[i].id = oc->id; | |
5048 | i++; | |
5049 | } | |
18080541 BP |
5050 | } |
5051 | } | |
5052 | ||
5053 | *conjsp = conjs; | |
5054 | *n_conjsp = n_conjs; | |
5055 | } | |
5056 | ||
5bacd5cd JR |
5057 | /* add_flow_init(), add_flow_start(), add_flow_revert(), and add_flow_finish() |
5058 | * implement OFPFC_ADD and the cases for OFPFC_MODIFY and OFPFC_MODIFY_STRICT | |
1f42be1c JR |
5059 | * in which no matching flow already exists in the flow table. |
5060 | * | |
5bacd5cd JR |
5061 | * add_flow_init() creates a new flow according to 'fm' and stores it to 'ofm' |
5062 | * for later reference. If the flow replaces other flow, it will be updated to | |
5063 | * match modify semantics later by add_flow_start() (by calling | |
5064 | * replace_rule_start()). | |
1f42be1c | 5065 | * |
5bacd5cd | 5066 | * Returns 0 on success, or an OpenFlow error code on failure. |
1f42be1c | 5067 | * |
5bacd5cd JR |
5068 | * On successful return the caller must complete the operation by calling |
5069 | * add_flow_start(), and if that succeeds, then either add_flow_finish(), or | |
5070 | * add_flow_revert() if the operation needs to be reverted due to a later | |
5071 | * failure. | |
5072 | */ | |
90bf1e07 | 5073 | static enum ofperr |
5bacd5cd JR |
5074 | add_flow_init(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
5075 | const struct ofputil_flow_mod *fm) | |
5076 | OVS_EXCLUDED(ofproto_mutex) | |
064af421 | 5077 | { |
d0918789 | 5078 | struct oftable *table; |
8037acb4 | 5079 | struct cls_rule cr; |
5a361239 | 5080 | uint8_t table_id; |
39c94593 | 5081 | enum ofperr error; |
064af421 | 5082 | |
554764d1 | 5083 | if (!check_table_id(ofproto, fm->table_id)) { |
5bacd5cd | 5084 | return OFPERR_OFPBRC_BAD_TABLE_ID; |
48266274 BP |
5085 | } |
5086 | ||
7ee20df1 BP |
5087 | /* Pick table. */ |
5088 | if (fm->table_id == 0xff) { | |
13521ff5 | 5089 | if (ofproto->ofproto_class->rule_choose_table) { |
81a76618 BP |
5090 | error = ofproto->ofproto_class->rule_choose_table(ofproto, |
5091 | &fm->match, | |
7ee20df1 BP |
5092 | &table_id); |
5093 | if (error) { | |
5094 | return error; | |
5095 | } | |
cb22974d | 5096 | ovs_assert(table_id < ofproto->n_tables); |
7ee20df1 | 5097 | } else { |
5a361239 | 5098 | table_id = 0; |
7ee20df1 BP |
5099 | } |
5100 | } else if (fm->table_id < ofproto->n_tables) { | |
5a361239 | 5101 | table_id = fm->table_id; |
7ee20df1 | 5102 | } else { |
c22c56bd | 5103 | return OFPERR_OFPBRC_BAD_TABLE_ID; |
064af421 BP |
5104 | } |
5105 | ||
5a361239 | 5106 | table = &ofproto->tables[table_id]; |
834fe5cb BP |
5107 | if (table->flags & OFTABLE_READONLY |
5108 | && !(fm->flags & OFPUTIL_FF_NO_READONLY)) { | |
5c67e4af BP |
5109 | return OFPERR_OFPBRC_EPERM; |
5110 | } | |
5111 | ||
c84d8691 | 5112 | if (!(fm->flags & OFPUTIL_FF_HIDDEN_FIELDS) |
6a6b7060 | 5113 | && !minimatch_has_default_hidden_fields(&fm->match)) { |
c84d8691 JR |
5114 | VLOG_WARN_RL(&rl, "%s: (add_flow) only internal flows can set " |
5115 | "non-default values to hidden fields", ofproto->name); | |
5116 | return OFPERR_OFPBRC_EPERM; | |
adcf00ba AZ |
5117 | } |
5118 | ||
2c7ee524 | 5119 | if (!ofm->temp_rule) { |
6a6b7060 | 5120 | cls_rule_init_from_minimatch(&cr, &fm->match, fm->priority); |
8037acb4 | 5121 | |
2c7ee524 | 5122 | /* Allocate new rule. Destroys 'cr'. */ |
6a6b7060 | 5123 | uint64_t map = miniflow_get_tun_metadata_present_map(fm->match.flow); |
2c7ee524 JR |
5124 | error = ofproto_rule_create(ofproto, &cr, table - ofproto->tables, |
5125 | fm->new_cookie, fm->idle_timeout, | |
5126 | fm->hard_timeout, fm->flags, | |
5127 | fm->importance, fm->ofpacts, | |
6a6b7060 | 5128 | fm->ofpacts_len, map, |
5c7c16d8 | 5129 | fm->ofpacts_tlv_bitmap, &ofm->temp_rule); |
2c7ee524 JR |
5130 | if (error) { |
5131 | return error; | |
5132 | } | |
5bacd5cd | 5133 | |
2c7ee524 JR |
5134 | get_conjunctions(fm, &ofm->conjs, &ofm->n_conjs); |
5135 | } | |
5bacd5cd JR |
5136 | return 0; |
5137 | } | |
5138 | ||
2c7ee524 | 5139 | /* ofm->temp_rule is consumed only in the successful case. */ |
5bacd5cd JR |
5140 | static enum ofperr |
5141 | add_flow_start(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) | |
5142 | OVS_REQUIRES(ofproto_mutex) | |
5143 | { | |
5144 | struct rule *old_rule = NULL; | |
5145 | struct rule *new_rule = ofm->temp_rule; | |
5146 | const struct rule_actions *actions = rule_get_actions(new_rule); | |
5147 | struct oftable *table = &ofproto->tables[new_rule->table_id]; | |
5148 | enum ofperr error; | |
5149 | ||
5150 | /* Must check actions while holding ofproto_mutex to avoid a race. */ | |
5151 | error = ofproto_check_ofpacts(ofproto, actions->ofpacts, | |
5152 | actions->ofpacts_len); | |
5153 | if (error) { | |
5154 | return error; | |
5155 | } | |
5156 | ||
1f42be1c | 5157 | /* Check for the existence of an identical rule. |
2b7b1427 | 5158 | * This will not return rules earlier marked for removal. */ |
5bacd5cd JR |
5159 | old_rule = rule_from_cls_rule(classifier_find_rule_exactly(&table->cls, |
5160 | &new_rule->cr, | |
5161 | ofm->version)); | |
5162 | if (!old_rule) { | |
c84d8691 | 5163 | /* Check for overlap, if requested. */ |
5bacd5cd JR |
5164 | if (new_rule->flags & OFPUTIL_FF_CHECK_OVERLAP |
5165 | && classifier_rule_overlaps(&table->cls, &new_rule->cr, | |
5166 | ofm->version)) { | |
c84d8691 | 5167 | return OFPERR_OFPFMFC_OVERLAP; |
dd27be82 | 5168 | } |
b277c7cc | 5169 | |
c84d8691 | 5170 | /* If necessary, evict an existing rule to clear out space. */ |
6787a49f | 5171 | if (table->n_flows >= table->max_flows) { |
5bacd5cd JR |
5172 | if (!choose_rule_to_evict(table, &old_rule)) { |
5173 | return OFPERR_OFPFMFC_TABLE_FULL; | |
6787a49f | 5174 | } |
5bacd5cd JR |
5175 | eviction_group_remove_rule(old_rule); |
5176 | /* Marks 'old_rule' as an evicted rule rather than replaced rule. | |
6787a49f | 5177 | */ |
5bacd5cd | 5178 | old_rule->removed_reason = OFPRR_EVICTION; |
c09f755d | 5179 | } |
39c94593 | 5180 | } else { |
7338102b | 5181 | ofm->modify_cookie = true; |
39c94593 | 5182 | } |
81a76618 | 5183 | |
5bacd5cd JR |
5184 | if (old_rule) { |
5185 | rule_collection_add(&ofm->old_rules, old_rule); | |
064af421 | 5186 | } |
5bacd5cd | 5187 | /* Take ownership of the temp_rule. */ |
58026109 | 5188 | rule_collection_add(&ofm->new_rules, new_rule); |
5bacd5cd | 5189 | ofm->temp_rule = NULL; |
8037acb4 | 5190 | |
5bacd5cd | 5191 | replace_rule_start(ofproto, ofm, old_rule, new_rule); |
c84d8691 JR |
5192 | return 0; |
5193 | } | |
1ebeaaa7 | 5194 | |
6787a49f | 5195 | /* Revert the effects of add_flow_start(). */ |
1f42be1c | 5196 | static void |
8be00367 | 5197 | add_flow_revert(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
1f42be1c JR |
5198 | OVS_REQUIRES(ofproto_mutex) |
5199 | { | |
5bacd5cd | 5200 | struct rule *old_rule = rule_collection_n(&ofm->old_rules) |
58026109 JR |
5201 | ? rule_collection_rules(&ofm->old_rules)[0] : NULL; |
5202 | struct rule *new_rule = rule_collection_rules(&ofm->new_rules)[0]; | |
8be00367 | 5203 | |
39c94593 | 5204 | replace_rule_revert(ofproto, old_rule, new_rule); |
1f42be1c JR |
5205 | } |
5206 | ||
39c94593 | 5207 | /* To be called after version bump. */ |
146ee626 | 5208 | static enum ofperr |
8be00367 | 5209 | add_flow_finish(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
0a0d9385 | 5210 | const struct openflow_mod_requester *req) |
c84d8691 JR |
5211 | OVS_REQUIRES(ofproto_mutex) |
5212 | { | |
5bacd5cd | 5213 | struct rule *old_rule = rule_collection_n(&ofm->old_rules) |
58026109 JR |
5214 | ? rule_collection_rules(&ofm->old_rules)[0] : NULL; |
5215 | struct rule *new_rule = rule_collection_rules(&ofm->new_rules)[0]; | |
39c94593 | 5216 | struct ovs_list dead_cookies = OVS_LIST_INITIALIZER(&dead_cookies); |
146ee626 AP |
5217 | enum ofperr error = 0; |
5218 | ||
5219 | error = replace_rule_finish(ofproto, ofm, req, old_rule, new_rule, | |
5220 | &dead_cookies); | |
5221 | if (error) { | |
5222 | return error; | |
5223 | } | |
8037acb4 | 5224 | |
39c94593 | 5225 | learned_cookies_flush(ofproto, &dead_cookies); |
802f84ff | 5226 | |
39c94593 JR |
5227 | if (old_rule) { |
5228 | ovsrcu_postpone(remove_rule_rcu, old_rule); | |
5229 | } else { | |
39c94593 | 5230 | ofmonitor_report(ofproto->connmgr, new_rule, NXFME_ADDED, 0, |
c84d8691 JR |
5231 | req ? req->ofconn : NULL, |
5232 | req ? req->request->xid : 0, NULL); | |
6c6eedc5 SJ |
5233 | |
5234 | /* Send Vacancy Events for OF1.4+. */ | |
5235 | send_table_status(ofproto, new_rule->table_id); | |
c84d8691 | 5236 | } |
146ee626 AP |
5237 | |
5238 | return error; | |
c84d8691 | 5239 | } |
79eee1eb BP |
5240 | \f |
5241 | /* OFPFC_MODIFY and OFPFC_MODIFY_STRICT. */ | |
064af421 | 5242 | |
5bacd5cd | 5243 | /* Create a new rule. Note that the rule is NOT inserted into a any data |
2c7ee524 JR |
5244 | * structures yet. Takes ownership of 'cr'. Only assigns '*new_rule' if |
5245 | * successful. */ | |
90bf1e07 | 5246 | static enum ofperr |
5bacd5cd JR |
5247 | ofproto_rule_create(struct ofproto *ofproto, struct cls_rule *cr, |
5248 | uint8_t table_id, ovs_be64 new_cookie, | |
5249 | uint16_t idle_timeout, uint16_t hard_timeout, | |
5250 | enum ofputil_flow_mod_flags flags, uint16_t importance, | |
5251 | const struct ofpact *ofpacts, size_t ofpacts_len, | |
5c7c16d8 | 5252 | uint64_t match_tlv_bitmap, uint64_t ofpacts_tlv_bitmap, |
5bacd5cd JR |
5253 | struct rule **new_rule) |
5254 | OVS_NO_THREAD_SAFETY_ANALYSIS | |
79eee1eb | 5255 | { |
39c94593 | 5256 | struct rule *rule; |
dd27be82 | 5257 | enum ofperr error; |
79eee1eb | 5258 | |
39c94593 JR |
5259 | /* Allocate new rule. */ |
5260 | rule = ofproto->ofproto_class->rule_alloc(); | |
5261 | if (!rule) { | |
5262 | cls_rule_destroy(cr); | |
5263 | VLOG_WARN_RL(&rl, "%s: failed to allocate a rule.", ofproto->name); | |
5264 | return OFPERR_OFPFMFC_UNKNOWN; | |
af822017 BP |
5265 | } |
5266 | ||
39c94593 JR |
5267 | /* Initialize base state. */ |
5268 | *CONST_CAST(struct ofproto **, &rule->ofproto) = ofproto; | |
5269 | cls_rule_move(CONST_CAST(struct cls_rule *, &rule->cr), cr); | |
5270 | ovs_refcount_init(&rule->ref_count); | |
834fe5cb | 5271 | |
39c94593 JR |
5272 | ovs_mutex_init(&rule->mutex); |
5273 | ovs_mutex_lock(&rule->mutex); | |
82a3160e | 5274 | *CONST_CAST(ovs_be64 *, &rule->flow_cookie) = new_cookie; |
5bacd5cd JR |
5275 | rule->created = rule->modified = time_msec(); |
5276 | rule->idle_timeout = idle_timeout; | |
5277 | rule->hard_timeout = hard_timeout; | |
5278 | *CONST_CAST(uint16_t *, &rule->importance) = importance; | |
f695ebfa | 5279 | rule->removed_reason = OVS_OFPRR_NONE; |
834fe5cb | 5280 | |
39c94593 | 5281 | *CONST_CAST(uint8_t *, &rule->table_id) = table_id; |
5bacd5cd JR |
5282 | rule->flags = flags & OFPUTIL_FF_STATE; |
5283 | ||
39c94593 | 5284 | *CONST_CAST(const struct rule_actions **, &rule->actions) |
5bacd5cd JR |
5285 | = rule_actions_create(ofpacts, ofpacts_len); |
5286 | ||
417e7e66 | 5287 | ovs_list_init(&rule->meter_list_node); |
39c94593 | 5288 | rule->eviction_group = NULL; |
39c94593 JR |
5289 | rule->monitor_flags = 0; |
5290 | rule->add_seqno = 0; | |
5291 | rule->modify_seqno = 0; | |
5bacd5cd | 5292 | ovs_list_init(&rule->expirable); |
dd27be82 JR |
5293 | ovs_mutex_unlock(&rule->mutex); |
5294 | ||
39c94593 JR |
5295 | /* Construct rule, initializing derived state. */ |
5296 | error = ofproto->ofproto_class->rule_construct(rule); | |
5297 | if (error) { | |
5298 | ofproto_rule_destroy__(rule); | |
5299 | return error; | |
dd27be82 | 5300 | } |
b277c7cc | 5301 | |
30d0452c | 5302 | rule->state = RULE_INITIALIZED; |
5c7c16d8 YHW |
5303 | rule->match_tlv_bitmap = match_tlv_bitmap; |
5304 | rule->ofpacts_tlv_bitmap = ofpacts_tlv_bitmap; | |
5305 | mf_vl_mff_ref(&rule->ofproto->vl_mff_map, match_tlv_bitmap); | |
5306 | mf_vl_mff_ref(&rule->ofproto->vl_mff_map, ofpacts_tlv_bitmap); | |
dd27be82 | 5307 | |
39c94593 JR |
5308 | *new_rule = rule; |
5309 | return 0; | |
5310 | } | |
884e1dc4 | 5311 | |
2c7ee524 JR |
5312 | /* Initialize 'ofm' for a learn action. If the rule already existed, reference |
5313 | * to that rule is taken, otherwise a new rule is created. 'ofm' keeps the | |
5314 | * rule reference in both. This does not take the global 'ofproto_mutex'. */ | |
5315 | enum ofperr | |
5316 | ofproto_flow_mod_init_for_learn(struct ofproto *ofproto, | |
5317 | const struct ofputil_flow_mod *fm, | |
5318 | struct ofproto_flow_mod *ofm) | |
5319 | OVS_EXCLUDED(ofproto_mutex) | |
5320 | { | |
2c7ee524 JR |
5321 | /* Reject flow mods that do not look like they were generated by a learn |
5322 | * action. */ | |
5323 | if (fm->command != OFPFC_MODIFY_STRICT || fm->table_id == OFPTT_ALL | |
5324 | || fm->flags & OFPUTIL_FF_RESET_COUNTS | |
5325 | || fm->buffer_id != UINT32_MAX) { | |
5326 | return OFPERR_OFPFMFC_UNKNOWN; | |
5327 | } | |
5328 | ||
5329 | /* Check if the rule already exists, and we can get a reference to it. */ | |
5330 | struct oftable *table = &ofproto->tables[fm->table_id]; | |
5331 | struct rule *rule; | |
5332 | ||
6a6b7060 | 5333 | rule = rule_from_cls_rule(classifier_find_minimatch_exactly( |
2c7ee524 JR |
5334 | &table->cls, &fm->match, fm->priority, |
5335 | OVS_VERSION_MAX)); | |
5336 | if (rule) { | |
5337 | /* Check if the rule's attributes match as well. */ | |
5338 | const struct rule_actions *actions; | |
5339 | ||
5340 | ovs_mutex_lock(&rule->mutex); | |
5341 | actions = rule_get_actions(rule); | |
5342 | if (rule->idle_timeout == fm->idle_timeout | |
5343 | && rule->hard_timeout == fm->hard_timeout | |
5344 | && rule->importance == fm->importance | |
5345 | && rule->flags == (fm->flags & OFPUTIL_FF_STATE) | |
5346 | && (!fm->modify_cookie || (fm->new_cookie == rule->flow_cookie)) | |
5347 | && ofpacts_equal(fm->ofpacts, fm->ofpacts_len, | |
5348 | actions->ofpacts, actions->ofpacts_len)) { | |
5349 | /* Rule already exists and need not change, except for the modified | |
5350 | * timestamp. Get a reference to the existing rule. */ | |
5351 | ovs_mutex_unlock(&rule->mutex); | |
5352 | if (!ofproto_rule_try_ref(rule)) { | |
5353 | rule = NULL; /* Pretend it did not exist. */ | |
5354 | } | |
5355 | } else { | |
5356 | ovs_mutex_unlock(&rule->mutex); | |
5357 | rule = NULL; | |
5358 | } | |
5359 | } | |
5360 | ||
6399df6a | 5361 | return ofproto_flow_mod_init(ofproto, ofm, fm, rule); |
2c7ee524 JR |
5362 | } |
5363 | ||
2c7ee524 | 5364 | enum ofperr |
1f4a8933 | 5365 | ofproto_flow_mod_learn_refresh(struct ofproto_flow_mod *ofm) |
2c7ee524 JR |
5366 | { |
5367 | enum ofperr error = 0; | |
5368 | ||
5369 | /* ofm->temp_rule is our reference to the learned rule. We have a | |
5370 | * reference to an existing rule, if it already was in the classifier, | |
5371 | * otherwise we may have a fresh rule that we need to insert. */ | |
5372 | struct rule *rule = ofm->temp_rule; | |
5373 | if (!rule) { | |
5374 | return OFPERR_OFPFMFC_UNKNOWN; | |
5375 | } | |
2c7ee524 JR |
5376 | |
5377 | /* Create a new rule if the current one has been removed from the | |
5378 | * classifier. We need to do this since RCU does not allow a current rule | |
5379 | * to be reinserted before all threads have quiesced. | |
5380 | * | |
5381 | * It is possible that the rule is removed asynchronously, e.g., right | |
1f4a8933 | 5382 | * after we have read the 'rule->state' below. In this case the next time |
2c7ee524 | 5383 | * this function is executed the rule will be reinstated. */ |
1f4a8933 | 5384 | if (rule->state == RULE_REMOVED) { |
2c7ee524 JR |
5385 | struct cls_rule cr; |
5386 | ||
5387 | cls_rule_clone(&cr, &rule->cr); | |
5388 | ovs_mutex_lock(&rule->mutex); | |
1f4a8933 | 5389 | error = ofproto_rule_create(rule->ofproto, &cr, rule->table_id, |
2c7ee524 JR |
5390 | rule->flow_cookie, |
5391 | rule->idle_timeout, | |
5392 | rule->hard_timeout, rule->flags, | |
5393 | rule->importance, | |
5394 | rule->actions->ofpacts, | |
5395 | rule->actions->ofpacts_len, | |
5c7c16d8 YHW |
5396 | rule->match_tlv_bitmap, |
5397 | rule->ofpacts_tlv_bitmap, | |
2c7ee524 JR |
5398 | &ofm->temp_rule); |
5399 | ovs_mutex_unlock(&rule->mutex); | |
2c7ee524 | 5400 | if (!error) { |
1f4a8933 | 5401 | ofproto_rule_unref(rule); /* Release old reference. */ |
2c7ee524 | 5402 | } |
2c7ee524 JR |
5403 | } else { |
5404 | /* Refresh the existing rule. */ | |
5405 | ovs_mutex_lock(&rule->mutex); | |
5406 | rule->modified = time_msec(); | |
5407 | ovs_mutex_unlock(&rule->mutex); | |
5408 | } | |
1f4a8933 JR |
5409 | return error; |
5410 | } | |
5411 | ||
5412 | enum ofperr | |
5413 | ofproto_flow_mod_learn_start(struct ofproto_flow_mod *ofm) | |
5414 | OVS_REQUIRES(ofproto_mutex) | |
5415 | { | |
5416 | struct rule *rule = ofm->temp_rule; | |
5417 | ||
5418 | /* ofproto_flow_mod_start() consumes the reference, so we | |
5419 | * take a new one. */ | |
5420 | ofproto_rule_ref(rule); | |
5421 | enum ofperr error = ofproto_flow_mod_start(rule->ofproto, ofm); | |
5422 | ofm->temp_rule = rule; | |
5423 | ||
5424 | return error; | |
5425 | } | |
5426 | ||
6dd3c787 JR |
5427 | void |
5428 | ofproto_flow_mod_learn_revert(struct ofproto_flow_mod *ofm) | |
5429 | OVS_REQUIRES(ofproto_mutex) | |
5430 | { | |
5431 | struct rule *rule = rule_collection_rules(&ofm->new_rules)[0]; | |
5432 | ofproto_flow_mod_revert(rule->ofproto, ofm); | |
5433 | } | |
5434 | ||
146ee626 | 5435 | enum ofperr |
1f4a8933 JR |
5436 | ofproto_flow_mod_learn_finish(struct ofproto_flow_mod *ofm, |
5437 | struct ofproto *orig_ofproto) | |
5438 | OVS_REQUIRES(ofproto_mutex) | |
5439 | { | |
5440 | struct rule *rule = rule_collection_rules(&ofm->new_rules)[0]; | |
146ee626 | 5441 | enum ofperr error = 0; |
1f4a8933 JR |
5442 | |
5443 | /* If learning on a different bridge, must bump its version | |
5444 | * number and flush connmgr afterwards. */ | |
5445 | if (rule->ofproto != orig_ofproto) { | |
5446 | ofproto_bump_tables_version(rule->ofproto); | |
5447 | } | |
146ee626 | 5448 | error = ofproto_flow_mod_finish(rule->ofproto, ofm, NULL); |
1f4a8933 JR |
5449 | if (rule->ofproto != orig_ofproto) { |
5450 | ofmonitor_flush(rule->ofproto->connmgr); | |
5451 | } | |
146ee626 AP |
5452 | |
5453 | return error; | |
1f4a8933 JR |
5454 | } |
5455 | ||
5456 | /* Refresh 'ofm->temp_rule', for which the caller holds a reference, if already | |
5457 | * in the classifier, insert it otherwise. If the rule has already been | |
5458 | * removed from the classifier, a new rule is created using 'ofm->temp_rule' as | |
5459 | * a template and the reference to the old 'ofm->temp_rule' is freed. If | |
5460 | * 'keep_ref' is true, then a reference to the current rule is held, otherwise | |
5461 | * it is released and 'ofm->temp_rule' is set to NULL. | |
5462 | * | |
4c71600d DDP |
5463 | * If 'limit' != 0, insertion will fail if there are more than 'limit' rules |
5464 | * in the same table with the same cookie. If insertion succeeds, | |
86b7637c JS |
5465 | * '*below_limitp' will be set to true. If insertion fails '*below_limitp' |
5466 | * will be set to false. | |
4c71600d | 5467 | * |
1f4a8933 JR |
5468 | * Caller needs to be the exclusive owner of 'ofm' as it is being manipulated |
5469 | * during the call. */ | |
5470 | enum ofperr | |
4c71600d | 5471 | ofproto_flow_mod_learn(struct ofproto_flow_mod *ofm, bool keep_ref, |
86b7637c | 5472 | unsigned limit, bool *below_limitp) |
1f4a8933 JR |
5473 | OVS_EXCLUDED(ofproto_mutex) |
5474 | { | |
5475 | enum ofperr error = ofproto_flow_mod_learn_refresh(ofm); | |
5476 | struct rule *rule = ofm->temp_rule; | |
86b7637c | 5477 | bool below_limit = true; |
1f4a8933 JR |
5478 | |
5479 | /* Do we need to insert the rule? */ | |
5480 | if (!error && rule->state == RULE_INITIALIZED) { | |
5481 | ovs_mutex_lock(&ofproto_mutex); | |
4c71600d DDP |
5482 | |
5483 | if (limit) { | |
5484 | struct rule_criteria criteria; | |
5485 | struct rule_collection rules; | |
6a6b7060 | 5486 | struct minimatch match; |
4c71600d | 5487 | |
6a6b7060 | 5488 | minimatch_init_catchall(&match); |
4c71600d DDP |
5489 | rule_criteria_init(&criteria, rule->table_id, &match, 0, |
5490 | OVS_VERSION_MAX, rule->flow_cookie, | |
5491 | OVS_BE64_MAX, OFPP_ANY, OFPG_ANY); | |
6a6b7060 BP |
5492 | minimatch_destroy(&match); |
5493 | ||
4c71600d DDP |
5494 | rule_criteria_require_rw(&criteria, false); |
5495 | collect_rules_loose(rule->ofproto, &criteria, &rules); | |
5496 | if (rule_collection_n(&rules) >= limit) { | |
86b7637c | 5497 | below_limit = false; |
4c71600d DDP |
5498 | } |
5499 | rule_collection_destroy(&rules); | |
5500 | rule_criteria_destroy(&criteria); | |
5501 | } | |
5502 | ||
86b7637c | 5503 | if (below_limit) { |
4c71600d DDP |
5504 | ofm->version = rule->ofproto->tables_version + 1; |
5505 | ||
5506 | error = ofproto_flow_mod_learn_start(ofm); | |
5507 | if (!error) { | |
146ee626 | 5508 | error = ofproto_flow_mod_learn_finish(ofm, NULL); |
4c71600d DDP |
5509 | } |
5510 | } else { | |
7ed58d4a JP |
5511 | static struct vlog_rate_limit rll = VLOG_RATE_LIMIT_INIT(1, 5); |
5512 | VLOG_INFO_RL(&rll, "Learn limit for flow %"PRIu64" reached.", | |
05b1dd23 BP |
5513 | rule->flow_cookie); |
5514 | ||
4c71600d | 5515 | ofproto_flow_mod_uninit(ofm); |
1f4a8933 JR |
5516 | } |
5517 | ovs_mutex_unlock(&ofproto_mutex); | |
5518 | } | |
2c7ee524 | 5519 | |
86b7637c | 5520 | if (!keep_ref && below_limit) { |
2c7ee524 JR |
5521 | ofproto_rule_unref(rule); |
5522 | ofm->temp_rule = NULL; | |
5523 | } | |
86b7637c JS |
5524 | if (below_limitp) { |
5525 | *below_limitp = below_limit; | |
4c71600d | 5526 | } |
2c7ee524 JR |
5527 | return error; |
5528 | } | |
5529 | ||
39c94593 | 5530 | static void |
5bacd5cd JR |
5531 | replace_rule_start(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
5532 | struct rule *old_rule, struct rule *new_rule) | |
39c94593 JR |
5533 | { |
5534 | struct oftable *table = &ofproto->tables[new_rule->table_id]; | |
834fe5cb | 5535 | |
6787a49f | 5536 | /* 'old_rule' may be either an evicted rule or replaced rule. */ |
39c94593 | 5537 | if (old_rule) { |
5bacd5cd JR |
5538 | /* Copy values from old rule for modify semantics. */ |
5539 | if (old_rule->removed_reason != OFPRR_EVICTION) { | |
5540 | bool change_cookie = (ofm->modify_cookie | |
5541 | && new_rule->flow_cookie != OVS_BE64_MAX | |
5542 | && new_rule->flow_cookie != old_rule->flow_cookie); | |
5543 | ||
5544 | ovs_mutex_lock(&new_rule->mutex); | |
5545 | ovs_mutex_lock(&old_rule->mutex); | |
5546 | if (ofm->command != OFPFC_ADD) { | |
5547 | new_rule->idle_timeout = old_rule->idle_timeout; | |
5548 | new_rule->hard_timeout = old_rule->hard_timeout; | |
5549 | *CONST_CAST(uint16_t *, &new_rule->importance) = old_rule->importance; | |
5550 | new_rule->flags = old_rule->flags; | |
5551 | new_rule->created = old_rule->created; | |
5552 | } | |
5553 | if (!change_cookie) { | |
82a3160e BP |
5554 | *CONST_CAST(ovs_be64 *, &new_rule->flow_cookie) |
5555 | = old_rule->flow_cookie; | |
5bacd5cd JR |
5556 | } |
5557 | ovs_mutex_unlock(&old_rule->mutex); | |
5558 | ovs_mutex_unlock(&new_rule->mutex); | |
5559 | } | |
5560 | ||
39c94593 | 5561 | /* Mark the old rule for removal in the next version. */ |
5bacd5cd | 5562 | cls_rule_make_invisible_in_version(&old_rule->cr, ofm->version); |
9bab38ff JR |
5563 | |
5564 | /* Remove the old rule from data structures. */ | |
5565 | ofproto_rule_remove__(ofproto, old_rule); | |
d79e3d70 JR |
5566 | } else { |
5567 | table->n_flows++; | |
dd27be82 | 5568 | } |
cc099268 JR |
5569 | /* Insert flow to ofproto data structures, so that later flow_mods may |
5570 | * relate to it. This is reversible, in case later errors require this to | |
39c94593 JR |
5571 | * be reverted. */ |
5572 | ofproto_rule_insert__(ofproto, new_rule); | |
5573 | /* Make the new rule visible for classifier lookups only from the next | |
5574 | * version. */ | |
5bacd5cd JR |
5575 | classifier_insert(&table->cls, &new_rule->cr, ofm->version, ofm->conjs, |
5576 | ofm->n_conjs); | |
39c94593 JR |
5577 | } |
5578 | ||
cc099268 JR |
5579 | static void |
5580 | replace_rule_revert(struct ofproto *ofproto, | |
5581 | struct rule *old_rule, struct rule *new_rule) | |
39c94593 JR |
5582 | { |
5583 | struct oftable *table = &ofproto->tables[new_rule->table_id]; | |
35f48b8b | 5584 | |
39c94593 | 5585 | if (old_rule) { |
5bacd5cd JR |
5586 | if (old_rule->removed_reason == OFPRR_EVICTION) { |
5587 | /* Revert the eviction. */ | |
5588 | eviction_group_add_rule(old_rule); | |
5589 | } | |
5590 | ||
9bab38ff JR |
5591 | /* Restore the old rule to data structures. */ |
5592 | ofproto_rule_insert__(ofproto, old_rule); | |
5593 | ||
d79e3d70 | 5594 | /* Restore the original visibility of the old rule. */ |
39c94593 | 5595 | cls_rule_restore_visibility(&old_rule->cr); |
d79e3d70 JR |
5596 | } else { |
5597 | /* Restore table's rule count. */ | |
5598 | table->n_flows--; | |
834fe5cb BP |
5599 | } |
5600 | ||
39c94593 | 5601 | /* Remove the new rule immediately. It was never visible to lookups. */ |
46ab60bf | 5602 | classifier_remove_assert(&table->cls, &new_rule->cr); |
39c94593 | 5603 | ofproto_rule_remove__(ofproto, new_rule); |
39c94593 | 5604 | ofproto_rule_unref(new_rule); |
dd27be82 | 5605 | } |
79eee1eb | 5606 | |
39c94593 | 5607 | /* Adds the 'new_rule', replacing the 'old_rule'. */ |
146ee626 | 5608 | static enum ofperr |
81dee635 | 5609 | replace_rule_finish(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
0a0d9385 | 5610 | const struct openflow_mod_requester *req, |
39c94593 JR |
5611 | struct rule *old_rule, struct rule *new_rule, |
5612 | struct ovs_list *dead_cookies) | |
dd27be82 JR |
5613 | OVS_REQUIRES(ofproto_mutex) |
5614 | { | |
6787a49f | 5615 | struct rule *replaced_rule; |
146ee626 AP |
5616 | enum ofperr error = 0; |
5617 | struct oftable *table = &ofproto->tables[new_rule->table_id]; | |
6787a49f | 5618 | |
5aacc3e2 JR |
5619 | replaced_rule = (old_rule && old_rule->removed_reason != OFPRR_EVICTION) |
5620 | ? old_rule : NULL; | |
dd27be82 | 5621 | |
6787a49f JR |
5622 | /* Insert the new flow to the ofproto provider. A non-NULL 'replaced_rule' |
5623 | * is a duplicate rule the 'new_rule' is replacing. The provider should | |
748eb2f5 | 5624 | * link the packet and byte counts from the old rule to the new one if |
8b6987d7 JR |
5625 | * 'modify_keep_counts' is 'true'. The 'replaced_rule' will be deleted |
5626 | * right after this call. */ | |
146ee626 AP |
5627 | error = ofproto->ofproto_class->rule_insert(new_rule, replaced_rule, |
5628 | ofm->modify_keep_counts); | |
5629 | if (error) { | |
5630 | if (classifier_remove(&table->cls, &new_rule->cr)) { | |
5631 | ofproto_rule_destroy__(new_rule); | |
5632 | } | |
5633 | return error; | |
5634 | } | |
5635 | ||
39c94593 JR |
5636 | learned_cookies_inc(ofproto, rule_get_actions(new_rule)); |
5637 | ||
5638 | if (old_rule) { | |
5639 | const struct rule_actions *old_actions = rule_get_actions(old_rule); | |
81dee635 | 5640 | const struct rule_actions *new_actions = rule_get_actions(new_rule); |
39c94593 | 5641 | |
39c94593 JR |
5642 | learned_cookies_dec(ofproto, old_actions, dead_cookies); |
5643 | ||
6787a49f | 5644 | if (replaced_rule) { |
5bacd5cd JR |
5645 | enum nx_flow_update_event event = ofm->command == OFPFC_ADD |
5646 | ? NXFME_ADDED : NXFME_MODIFIED; | |
5647 | ||
81dee635 JR |
5648 | bool changed_cookie = (new_rule->flow_cookie |
5649 | != old_rule->flow_cookie); | |
6787a49f | 5650 | |
81dee635 JR |
5651 | bool changed_actions = !ofpacts_equal(new_actions->ofpacts, |
5652 | new_actions->ofpacts_len, | |
5653 | old_actions->ofpacts, | |
5654 | old_actions->ofpacts_len); | |
6787a49f | 5655 | |
5bacd5cd | 5656 | if (event != NXFME_MODIFIED || changed_actions |
81dee635 | 5657 | || changed_cookie) { |
5bacd5cd | 5658 | ofmonitor_report(ofproto->connmgr, new_rule, event, 0, |
6787a49f JR |
5659 | req ? req->ofconn : NULL, |
5660 | req ? req->request->xid : 0, | |
81dee635 | 5661 | changed_actions ? old_actions : NULL); |
6787a49f JR |
5662 | } |
5663 | } else { | |
5664 | /* XXX: This is slight duplication with delete_flows_finish__() */ | |
6787a49f JR |
5665 | ofmonitor_report(ofproto->connmgr, old_rule, NXFME_DELETED, |
5666 | OFPRR_EVICTION, | |
39c94593 | 5667 | req ? req->ofconn : NULL, |
6787a49f | 5668 | req ? req->request->xid : 0, NULL); |
39c94593 | 5669 | } |
dd27be82 | 5670 | } |
146ee626 AP |
5671 | |
5672 | return error; | |
9ed18e46 BP |
5673 | } |
5674 | ||
2c7ee524 | 5675 | /* ofm->temp_rule is consumed only in the successful case. */ |
9387b970 | 5676 | static enum ofperr |
8be00367 | 5677 | modify_flows_start__(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
dd27be82 JR |
5678 | OVS_REQUIRES(ofproto_mutex) |
5679 | { | |
8be00367 JR |
5680 | struct rule_collection *old_rules = &ofm->old_rules; |
5681 | struct rule_collection *new_rules = &ofm->new_rules; | |
dd27be82 JR |
5682 | enum ofperr error; |
5683 | ||
fe59694b | 5684 | if (rule_collection_n(old_rules) > 0) { |
39c94593 | 5685 | /* Create a new 'modified' rule for each old rule. */ |
5bacd5cd JR |
5686 | struct rule *old_rule, *new_rule; |
5687 | const struct rule_actions *actions = rule_get_actions(ofm->temp_rule); | |
39c94593 | 5688 | |
5bacd5cd JR |
5689 | /* Must check actions while holding ofproto_mutex to avoid a race. */ |
5690 | error = ofproto_check_ofpacts(ofproto, actions->ofpacts, | |
5691 | actions->ofpacts_len); | |
5692 | if (error) { | |
5693 | return error; | |
5694 | } | |
5695 | ||
5696 | /* Use the temp rule as the first new rule, and as the template for | |
5697 | * the rest. */ | |
5698 | struct rule *temp = ofm->temp_rule; | |
5699 | ofm->temp_rule = NULL; /* We consume the template. */ | |
5700 | ||
5701 | bool first = true; | |
5702 | RULE_COLLECTION_FOR_EACH (old_rule, old_rules) { | |
5703 | if (first) { | |
5704 | /* The template rule's match is possibly a loose one, so it | |
5705 | * must be replaced with the old rule's match so that the new | |
5706 | * rule actually replaces the old one. */ | |
5707 | cls_rule_destroy(CONST_CAST(struct cls_rule *, &temp->cr)); | |
5708 | cls_rule_clone(CONST_CAST(struct cls_rule *, &temp->cr), | |
5709 | &old_rule->cr); | |
5c7c16d8 YHW |
5710 | if (temp->match_tlv_bitmap != old_rule->match_tlv_bitmap) { |
5711 | mf_vl_mff_unref(&temp->ofproto->vl_mff_map, | |
5712 | temp->match_tlv_bitmap); | |
5713 | temp->match_tlv_bitmap = old_rule->match_tlv_bitmap; | |
5714 | mf_vl_mff_ref(&temp->ofproto->vl_mff_map, | |
5715 | temp->match_tlv_bitmap); | |
5716 | } | |
5bacd5cd JR |
5717 | *CONST_CAST(uint8_t *, &temp->table_id) = old_rule->table_id; |
5718 | rule_collection_add(new_rules, temp); | |
5719 | first = false; | |
39c94593 | 5720 | } else { |
5bacd5cd JR |
5721 | struct cls_rule cr; |
5722 | cls_rule_clone(&cr, &old_rule->cr); | |
5723 | error = ofproto_rule_create(ofproto, &cr, old_rule->table_id, | |
5724 | temp->flow_cookie, | |
5725 | temp->idle_timeout, | |
5726 | temp->hard_timeout, temp->flags, | |
5727 | temp->importance, | |
5728 | temp->actions->ofpacts, | |
5729 | temp->actions->ofpacts_len, | |
5c7c16d8 YHW |
5730 | old_rule->match_tlv_bitmap, |
5731 | temp->ofpacts_tlv_bitmap, | |
5bacd5cd JR |
5732 | &new_rule); |
5733 | if (!error) { | |
5734 | rule_collection_add(new_rules, new_rule); | |
5735 | } else { | |
2c7ee524 JR |
5736 | /* Return the template rule in place in the error case. */ |
5737 | ofm->temp_rule = temp; | |
5738 | rule_collection_rules(new_rules)[0] = NULL; | |
5739 | ||
5bacd5cd JR |
5740 | rule_collection_unref(new_rules); |
5741 | rule_collection_destroy(new_rules); | |
5742 | return error; | |
5743 | } | |
39c94593 JR |
5744 | } |
5745 | } | |
fe59694b JR |
5746 | ovs_assert(rule_collection_n(new_rules) |
5747 | == rule_collection_n(old_rules)); | |
39c94593 | 5748 | |
fe59694b | 5749 | RULE_COLLECTIONS_FOR_EACH (old_rule, new_rule, old_rules, new_rules) { |
5bacd5cd | 5750 | replace_rule_start(ofproto, ofm, old_rule, new_rule); |
39c94593 | 5751 | } |
81dee635 | 5752 | } else if (ofm->modify_may_add_flow) { |
5bacd5cd | 5753 | /* No match, add a new flow, consumes 'temp'. */ |
8be00367 | 5754 | error = add_flow_start(ofproto, ofm); |
dd27be82 | 5755 | } else { |
2c7ee524 JR |
5756 | /* No flow to modify and may not add a flow. */ |
5757 | ofproto_rule_unref(ofm->temp_rule); | |
5758 | ofm->temp_rule = NULL; /* We consume the template. */ | |
d99f64d7 | 5759 | error = 0; |
dd27be82 | 5760 | } |
39c94593 | 5761 | |
dd27be82 JR |
5762 | return error; |
5763 | } | |
5764 | ||
5bacd5cd JR |
5765 | static enum ofperr |
5766 | modify_flows_init_loose(struct ofproto *ofproto, | |
5767 | struct ofproto_flow_mod *ofm, | |
5768 | const struct ofputil_flow_mod *fm) | |
5769 | OVS_EXCLUDED(ofproto_mutex) | |
5770 | { | |
5771 | rule_criteria_init(&ofm->criteria, fm->table_id, &fm->match, 0, | |
5772 | OVS_VERSION_MAX, fm->cookie, fm->cookie_mask, OFPP_ANY, | |
5773 | OFPG_ANY); | |
5774 | rule_criteria_require_rw(&ofm->criteria, | |
5775 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
5776 | /* Must create a new flow in advance for the case that no matches are | |
5777 | * found. Also used for template for multiple modified flows. */ | |
d2ede8c0 | 5778 | return add_flow_init(ofproto, ofm, fm); |
5bacd5cd JR |
5779 | } |
5780 | ||
90bf1e07 | 5781 | /* Implements OFPFC_MODIFY. Returns 0 on success or an OpenFlow error code on |
c184807c | 5782 | * failure. */ |
90bf1e07 | 5783 | static enum ofperr |
8be00367 | 5784 | modify_flows_start_loose(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
15aaf599 | 5785 | OVS_REQUIRES(ofproto_mutex) |
9ed18e46 | 5786 | { |
8be00367 | 5787 | struct rule_collection *old_rules = &ofm->old_rules; |
d51c8b71 | 5788 | enum ofperr error; |
9ed18e46 | 5789 | |
5bacd5cd | 5790 | error = collect_rules_loose(ofproto, &ofm->criteria, old_rules); |
a9b22b7f | 5791 | |
a8e547c1 | 5792 | if (!error) { |
8be00367 | 5793 | error = modify_flows_start__(ofproto, ofm); |
d99f64d7 JR |
5794 | } |
5795 | ||
5796 | if (error) { | |
39c94593 | 5797 | rule_collection_destroy(old_rules); |
d99f64d7 | 5798 | } |
5bacd5cd | 5799 | |
d99f64d7 JR |
5800 | return error; |
5801 | } | |
5802 | ||
1f42be1c | 5803 | static void |
8be00367 | 5804 | modify_flows_revert(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
1f42be1c JR |
5805 | OVS_REQUIRES(ofproto_mutex) |
5806 | { | |
8be00367 JR |
5807 | struct rule_collection *old_rules = &ofm->old_rules; |
5808 | struct rule_collection *new_rules = &ofm->new_rules; | |
5809 | ||
39c94593 | 5810 | /* Old rules were not changed yet, only need to revert new rules. */ |
5bacd5cd | 5811 | if (rule_collection_n(old_rules) > 0) { |
fe59694b JR |
5812 | struct rule *old_rule, *new_rule; |
5813 | RULE_COLLECTIONS_FOR_EACH (old_rule, new_rule, old_rules, new_rules) { | |
5814 | replace_rule_revert(ofproto, old_rule, new_rule); | |
39c94593 JR |
5815 | } |
5816 | rule_collection_destroy(new_rules); | |
5817 | rule_collection_destroy(old_rules); | |
1f42be1c | 5818 | } |
1f42be1c JR |
5819 | } |
5820 | ||
146ee626 | 5821 | static enum ofperr |
8be00367 | 5822 | modify_flows_finish(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
0a0d9385 | 5823 | const struct openflow_mod_requester *req) |
d99f64d7 JR |
5824 | OVS_REQUIRES(ofproto_mutex) |
5825 | { | |
8be00367 JR |
5826 | struct rule_collection *old_rules = &ofm->old_rules; |
5827 | struct rule_collection *new_rules = &ofm->new_rules; | |
146ee626 | 5828 | enum ofperr error = 0; |
8be00367 | 5829 | |
fe59694b JR |
5830 | if (rule_collection_n(old_rules) == 0 |
5831 | && rule_collection_n(new_rules) == 1) { | |
146ee626 | 5832 | error = add_flow_finish(ofproto, ofm, req); |
fe59694b | 5833 | } else if (rule_collection_n(old_rules) > 0) { |
39c94593 JR |
5834 | struct ovs_list dead_cookies = OVS_LIST_INITIALIZER(&dead_cookies); |
5835 | ||
fe59694b JR |
5836 | ovs_assert(rule_collection_n(new_rules) |
5837 | == rule_collection_n(old_rules)); | |
39c94593 | 5838 | |
fe59694b JR |
5839 | struct rule *old_rule, *new_rule; |
5840 | RULE_COLLECTIONS_FOR_EACH (old_rule, new_rule, old_rules, new_rules) { | |
146ee626 AP |
5841 | error = replace_rule_finish(ofproto, ofm, req, old_rule, new_rule, |
5842 | &dead_cookies); | |
5843 | if (error) { | |
5844 | return error; | |
5845 | } | |
39c94593 JR |
5846 | } |
5847 | learned_cookies_flush(ofproto, &dead_cookies); | |
cc099268 | 5848 | remove_rules_postponed(old_rules); |
d99f64d7 | 5849 | } |
146ee626 AP |
5850 | |
5851 | return error; | |
d99f64d7 JR |
5852 | } |
5853 | ||
5bacd5cd JR |
5854 | static enum ofperr |
5855 | modify_flow_init_strict(struct ofproto *ofproto OVS_UNUSED, | |
5856 | struct ofproto_flow_mod *ofm, | |
5857 | const struct ofputil_flow_mod *fm) | |
5858 | OVS_EXCLUDED(ofproto_mutex) | |
5859 | { | |
5860 | rule_criteria_init(&ofm->criteria, fm->table_id, &fm->match, fm->priority, | |
5861 | OVS_VERSION_MAX, fm->cookie, fm->cookie_mask, OFPP_ANY, | |
5862 | OFPG_ANY); | |
5863 | rule_criteria_require_rw(&ofm->criteria, | |
5864 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
5865 | /* Must create a new flow in advance for the case that no matches are | |
5866 | * found. Also used for template for multiple modified flows. */ | |
d2ede8c0 | 5867 | return add_flow_init(ofproto, ofm, fm); |
5bacd5cd JR |
5868 | } |
5869 | ||
79eee1eb | 5870 | /* Implements OFPFC_MODIFY_STRICT. Returns 0 on success or an OpenFlow error |
baae3d02 | 5871 | * code on failure. */ |
90bf1e07 | 5872 | static enum ofperr |
8be00367 | 5873 | modify_flow_start_strict(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
15aaf599 | 5874 | OVS_REQUIRES(ofproto_mutex) |
79eee1eb | 5875 | { |
8be00367 | 5876 | struct rule_collection *old_rules = &ofm->old_rules; |
d51c8b71 | 5877 | enum ofperr error; |
6c1491fb | 5878 | |
5bacd5cd | 5879 | error = collect_rules_strict(ofproto, &ofm->criteria, old_rules); |
a9b22b7f | 5880 | |
a8e547c1 | 5881 | if (!error) { |
dd27be82 | 5882 | /* collect_rules_strict() can return max 1 rule. */ |
8be00367 | 5883 | error = modify_flows_start__(ofproto, ofm); |
d99f64d7 JR |
5884 | } |
5885 | ||
d99f64d7 JR |
5886 | return error; |
5887 | } | |
9ed18e46 BP |
5888 | \f |
5889 | /* OFPFC_DELETE implementation. */ | |
79eee1eb | 5890 | |
254750ce | 5891 | static void |
44e0c35d | 5892 | delete_flows_start__(struct ofproto *ofproto, ovs_version_t version, |
39c94593 JR |
5893 | const struct rule_collection *rules) |
5894 | OVS_REQUIRES(ofproto_mutex) | |
5895 | { | |
fe59694b JR |
5896 | struct rule *rule; |
5897 | ||
5898 | RULE_COLLECTION_FOR_EACH (rule, rules) { | |
d79e3d70 JR |
5899 | struct oftable *table = &ofproto->tables[rule->table_id]; |
5900 | ||
5901 | table->n_flows--; | |
8be00367 | 5902 | cls_rule_make_invisible_in_version(&rule->cr, version); |
9bab38ff JR |
5903 | |
5904 | /* Remove rule from ofproto data structures. */ | |
5905 | ofproto_rule_remove__(ofproto, rule); | |
39c94593 JR |
5906 | } |
5907 | } | |
5908 | ||
25070e04 JR |
5909 | static void |
5910 | delete_flows_revert__(struct ofproto *ofproto, | |
5911 | const struct rule_collection *rules) | |
5912 | OVS_REQUIRES(ofproto_mutex) | |
5913 | { | |
5914 | struct rule *rule; | |
5915 | ||
5916 | RULE_COLLECTION_FOR_EACH (rule, rules) { | |
5917 | struct oftable *table = &ofproto->tables[rule->table_id]; | |
5918 | ||
5919 | /* Add rule back to ofproto data structures. */ | |
5920 | ofproto_rule_insert__(ofproto, rule); | |
5921 | ||
5922 | /* Restore table's rule count. */ | |
5923 | table->n_flows++; | |
5924 | ||
5925 | /* Restore the original visibility of the rule. */ | |
5926 | cls_rule_restore_visibility(&rule->cr); | |
5927 | } | |
5928 | } | |
5929 | ||
39c94593 JR |
5930 | static void |
5931 | delete_flows_finish__(struct ofproto *ofproto, | |
5932 | struct rule_collection *rules, | |
5933 | enum ofp_flow_removed_reason reason, | |
0a0d9385 | 5934 | const struct openflow_mod_requester *req) |
15aaf599 | 5935 | OVS_REQUIRES(ofproto_mutex) |
064af421 | 5936 | { |
fe59694b | 5937 | if (rule_collection_n(rules)) { |
55951e15 | 5938 | struct ovs_list dead_cookies = OVS_LIST_INITIALIZER(&dead_cookies); |
fe59694b | 5939 | struct rule *rule; |
79eee1eb | 5940 | |
fe59694b | 5941 | RULE_COLLECTION_FOR_EACH (rule, rules) { |
f695ebfa JR |
5942 | /* This value will be used to send the flow removed message right |
5943 | * before the rule is actually destroyed. */ | |
5944 | rule->removed_reason = reason; | |
5945 | ||
9ca4a86f | 5946 | ofmonitor_report(ofproto->connmgr, rule, NXFME_DELETED, reason, |
c84d8691 JR |
5947 | req ? req->ofconn : NULL, |
5948 | req ? req->request->xid : 0, NULL); | |
6c6eedc5 SJ |
5949 | |
5950 | /* Send Vacancy Event for OF1.4+. */ | |
5951 | send_table_status(ofproto, rule->table_id); | |
5952 | ||
802f84ff JR |
5953 | learned_cookies_dec(ofproto, rule_get_actions(rule), |
5954 | &dead_cookies); | |
9ca4a86f | 5955 | } |
cc099268 | 5956 | remove_rules_postponed(rules); |
39c94593 | 5957 | |
35f48b8b | 5958 | learned_cookies_flush(ofproto, &dead_cookies); |
39c94593 JR |
5959 | } |
5960 | } | |
5961 | ||
5962 | /* Deletes the rules listed in 'rules'. | |
5963 | * The deleted rules will become invisible to the lookups in the next version. | |
5964 | * Destroys 'rules'. */ | |
5965 | static void | |
5966 | delete_flows__(struct rule_collection *rules, | |
5967 | enum ofp_flow_removed_reason reason, | |
0a0d9385 | 5968 | const struct openflow_mod_requester *req) |
39c94593 JR |
5969 | OVS_REQUIRES(ofproto_mutex) |
5970 | { | |
fe59694b JR |
5971 | if (rule_collection_n(rules)) { |
5972 | struct ofproto *ofproto = rule_collection_rules(rules)[0]->ofproto; | |
39c94593 | 5973 | |
8be00367 | 5974 | delete_flows_start__(ofproto, ofproto->tables_version + 1, rules); |
39c94593 JR |
5975 | ofproto_bump_tables_version(ofproto); |
5976 | delete_flows_finish__(ofproto, rules, reason, req); | |
9ca4a86f BP |
5977 | ofmonitor_flush(ofproto->connmgr); |
5978 | } | |
79eee1eb | 5979 | } |
79eee1eb | 5980 | |
5bacd5cd JR |
5981 | static enum ofperr |
5982 | delete_flows_init_loose(struct ofproto *ofproto OVS_UNUSED, | |
5983 | struct ofproto_flow_mod *ofm, | |
5984 | const struct ofputil_flow_mod *fm) | |
5985 | OVS_EXCLUDED(ofproto_mutex) | |
5986 | { | |
5987 | rule_criteria_init(&ofm->criteria, fm->table_id, &fm->match, 0, | |
5988 | OVS_VERSION_MAX, fm->cookie, fm->cookie_mask, | |
5989 | fm->out_port, fm->out_group); | |
5990 | rule_criteria_require_rw(&ofm->criteria, | |
5991 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
5992 | return 0; | |
5993 | } | |
5994 | ||
79eee1eb | 5995 | /* Implements OFPFC_DELETE. */ |
90bf1e07 | 5996 | static enum ofperr |
8be00367 | 5997 | delete_flows_start_loose(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
15aaf599 | 5998 | OVS_REQUIRES(ofproto_mutex) |
79eee1eb | 5999 | { |
8be00367 | 6000 | struct rule_collection *rules = &ofm->old_rules; |
90bf1e07 | 6001 | enum ofperr error; |
064af421 | 6002 | |
5bacd5cd | 6003 | error = collect_rules_loose(ofproto, &ofm->criteria, rules); |
a9b22b7f | 6004 | |
802f84ff | 6005 | if (!error) { |
8be00367 | 6006 | delete_flows_start__(ofproto, ofm->version, rules); |
a8e547c1 | 6007 | } |
a8e547c1 BP |
6008 | |
6009 | return error; | |
064af421 BP |
6010 | } |
6011 | ||
ce59413f | 6012 | static void |
8be00367 | 6013 | delete_flows_revert(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
ce59413f JR |
6014 | OVS_REQUIRES(ofproto_mutex) |
6015 | { | |
25070e04 | 6016 | delete_flows_revert__(ofproto, &ofm->old_rules); |
ce59413f JR |
6017 | } |
6018 | ||
1f42be1c | 6019 | static void |
2c7ee524 | 6020 | delete_flows_finish(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
0a0d9385 | 6021 | const struct openflow_mod_requester *req) |
15aaf599 | 6022 | OVS_REQUIRES(ofproto_mutex) |
79eee1eb | 6023 | { |
5aacc3e2 | 6024 | delete_flows_finish__(ofproto, &ofm->old_rules, OFPRR_DELETE, req); |
ce59413f JR |
6025 | } |
6026 | ||
5bacd5cd JR |
6027 | static enum ofperr |
6028 | delete_flows_init_strict(struct ofproto *ofproto OVS_UNUSED, | |
6029 | struct ofproto_flow_mod *ofm, | |
6030 | const struct ofputil_flow_mod *fm) | |
6031 | OVS_EXCLUDED(ofproto_mutex) | |
6032 | { | |
6033 | rule_criteria_init(&ofm->criteria, fm->table_id, &fm->match, fm->priority, | |
6034 | OVS_VERSION_MAX, fm->cookie, fm->cookie_mask, | |
6035 | fm->out_port, fm->out_group); | |
6036 | rule_criteria_require_rw(&ofm->criteria, | |
6037 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
6038 | return 0; | |
6039 | } | |
6040 | ||
ce59413f JR |
6041 | /* Implements OFPFC_DELETE_STRICT. */ |
6042 | static enum ofperr | |
2c7ee524 | 6043 | delete_flow_start_strict(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
ce59413f JR |
6044 | OVS_REQUIRES(ofproto_mutex) |
6045 | { | |
8be00367 | 6046 | struct rule_collection *rules = &ofm->old_rules; |
ce59413f JR |
6047 | enum ofperr error; |
6048 | ||
5bacd5cd | 6049 | error = collect_rules_strict(ofproto, &ofm->criteria, rules); |
a9b22b7f | 6050 | |
802f84ff | 6051 | if (!error) { |
8be00367 | 6052 | delete_flows_start__(ofproto, ofm->version, rules); |
ce59413f JR |
6053 | } |
6054 | ||
6055 | return error; | |
6056 | } | |
6057 | ||
f695ebfa | 6058 | /* This may only be called by rule_destroy_cb()! */ |
abe529af | 6059 | static void |
f695ebfa JR |
6060 | ofproto_rule_send_removed(struct rule *rule) |
6061 | OVS_EXCLUDED(ofproto_mutex) | |
abe529af BP |
6062 | { |
6063 | struct ofputil_flow_removed fr; | |
dc437090 | 6064 | long long int used; |
16441315 | 6065 | struct pkt_stats stats; |
abe529af | 6066 | |
5cb7a798 | 6067 | minimatch_expand(&rule->cr.match, &fr.match); |
81a76618 | 6068 | fr.priority = rule->cr.priority; |
f695ebfa | 6069 | |
25010c68 JR |
6070 | /* Synchronize with connmgr_destroy() calls to prevent connmgr disappearing |
6071 | * while we use it. */ | |
f695ebfa | 6072 | ovs_mutex_lock(&ofproto_mutex); |
25010c68 JR |
6073 | struct connmgr *connmgr = rule->ofproto->connmgr; |
6074 | if (!connmgr) { | |
6075 | ovs_mutex_unlock(&ofproto_mutex); | |
6076 | return; | |
6077 | } | |
6078 | ||
abe529af | 6079 | fr.cookie = rule->flow_cookie; |
f695ebfa | 6080 | fr.reason = rule->removed_reason; |
95216219 | 6081 | fr.table_id = rule->table_id; |
65e0be10 BP |
6082 | calc_duration(rule->created, time_msec(), |
6083 | &fr.duration_sec, &fr.duration_nsec); | |
d10976b7 | 6084 | ovs_mutex_lock(&rule->mutex); |
abe529af | 6085 | fr.idle_timeout = rule->idle_timeout; |
fa2bad0f | 6086 | fr.hard_timeout = rule->hard_timeout; |
d10976b7 | 6087 | ovs_mutex_unlock(&rule->mutex); |
16441315 | 6088 | rule->ofproto->ofproto_class->rule_get_stats(rule, &stats, &used); |
c36bba35 IM |
6089 | fr.packet_count = stats.n_packets; |
6090 | fr.byte_count = stats.n_bytes; | |
25010c68 | 6091 | connmgr_send_flow_removed(connmgr, &fr); |
f695ebfa | 6092 | ovs_mutex_unlock(&ofproto_mutex); |
abe529af BP |
6093 | } |
6094 | ||
6095 | /* Sends an OpenFlow "flow removed" message with the given 'reason' (either | |
6096 | * OFPRR_HARD_TIMEOUT or OFPRR_IDLE_TIMEOUT), and then removes 'rule' from its | |
6097 | * ofproto. | |
6098 | * | |
6099 | * ofproto implementation ->run() functions should use this function to expire | |
6100 | * OpenFlow flows. */ | |
6101 | void | |
6102 | ofproto_rule_expire(struct rule *rule, uint8_t reason) | |
15aaf599 | 6103 | OVS_REQUIRES(ofproto_mutex) |
abe529af | 6104 | { |
802f84ff JR |
6105 | struct rule_collection rules; |
6106 | ||
fe59694b JR |
6107 | rule_collection_init(&rules); |
6108 | rule_collection_add(&rules, rule); | |
802f84ff | 6109 | delete_flows__(&rules, reason, NULL); |
79eee1eb | 6110 | } |
994c9973 BP |
6111 | |
6112 | /* Reduces '*timeout' to no more than 'max'. A value of zero in either case | |
6113 | * means "infinite". */ | |
6114 | static void | |
6115 | reduce_timeout(uint16_t max, uint16_t *timeout) | |
6116 | { | |
6117 | if (max && (!*timeout || *timeout > max)) { | |
6118 | *timeout = max; | |
6119 | } | |
6120 | } | |
6121 | ||
6122 | /* If 'idle_timeout' is nonzero, and 'rule' has no idle timeout or an idle | |
6123 | * timeout greater than 'idle_timeout', lowers 'rule''s idle timeout to | |
6124 | * 'idle_timeout' seconds. Similarly for 'hard_timeout'. | |
6125 | * | |
6126 | * Suitable for implementing OFPACT_FIN_TIMEOUT. */ | |
1f4a8933 JR |
6127 | void |
6128 | ofproto_rule_reduce_timeouts__(struct rule *rule, | |
6129 | uint16_t idle_timeout, uint16_t hard_timeout) | |
6130 | OVS_REQUIRES(ofproto_mutex) | |
6131 | OVS_EXCLUDED(rule->mutex) | |
6132 | { | |
6133 | if (!idle_timeout && !hard_timeout) { | |
6134 | return; | |
6135 | } | |
6136 | ||
6137 | if (ovs_list_is_empty(&rule->expirable)) { | |
6138 | ovs_list_insert(&rule->ofproto->expirable, &rule->expirable); | |
6139 | } | |
6140 | ||
6141 | ovs_mutex_lock(&rule->mutex); | |
6142 | reduce_timeout(idle_timeout, &rule->idle_timeout); | |
6143 | reduce_timeout(hard_timeout, &rule->hard_timeout); | |
6144 | ovs_mutex_unlock(&rule->mutex); | |
6145 | } | |
6146 | ||
994c9973 BP |
6147 | void |
6148 | ofproto_rule_reduce_timeouts(struct rule *rule, | |
6149 | uint16_t idle_timeout, uint16_t hard_timeout) | |
d10976b7 | 6150 | OVS_EXCLUDED(ofproto_mutex, rule->mutex) |
994c9973 BP |
6151 | { |
6152 | if (!idle_timeout && !hard_timeout) { | |
6153 | return; | |
6154 | } | |
6155 | ||
abe7b10f | 6156 | ovs_mutex_lock(&ofproto_mutex); |
417e7e66 BW |
6157 | if (ovs_list_is_empty(&rule->expirable)) { |
6158 | ovs_list_insert(&rule->ofproto->expirable, &rule->expirable); | |
994c9973 | 6159 | } |
abe7b10f | 6160 | ovs_mutex_unlock(&ofproto_mutex); |
994c9973 | 6161 | |
d10976b7 | 6162 | ovs_mutex_lock(&rule->mutex); |
994c9973 BP |
6163 | reduce_timeout(idle_timeout, &rule->idle_timeout); |
6164 | reduce_timeout(hard_timeout, &rule->hard_timeout); | |
d10976b7 | 6165 | ovs_mutex_unlock(&rule->mutex); |
994c9973 | 6166 | } |
79eee1eb | 6167 | \f |
90bf1e07 | 6168 | static enum ofperr |
2e4f5fcf | 6169 | handle_flow_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
15aaf599 | 6170 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 6171 | { |
a5b8d268 | 6172 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
7338102b | 6173 | struct ofputil_flow_mod fm; |
f25d0cf3 BP |
6174 | uint64_t ofpacts_stub[1024 / 8]; |
6175 | struct ofpbuf ofpacts; | |
90bf1e07 | 6176 | enum ofperr error; |
064af421 | 6177 | |
807152a4 | 6178 | error = reject_secondary_controller(ofconn); |
9deba63b | 6179 | if (error) { |
b0d38b2f | 6180 | return error; |
9deba63b | 6181 | } |
3052b0c5 | 6182 | |
f25d0cf3 | 6183 | ofpbuf_use_stub(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); |
7338102b | 6184 | error = ofputil_decode_flow_mod(&fm, oh, ofconn_get_protocol(ofconn), |
04f48a68 YHW |
6185 | ofproto_get_tun_tab(ofproto), |
6186 | &ofproto->vl_mff_map, &ofpacts, | |
7e9f8266 BP |
6187 | u16_to_ofp(ofproto->max_ports), |
6188 | ofproto->n_tables); | |
548de4dd | 6189 | if (!error) { |
0a0d9385 | 6190 | struct openflow_mod_requester req = { ofconn, oh }; |
7338102b | 6191 | error = handle_flow_mod__(ofproto, &fm, &req); |
6a6b7060 | 6192 | minimatch_destroy(&fm.match); |
49bdc010 | 6193 | } |
2e310801 | 6194 | |
f25d0cf3 | 6195 | ofpbuf_uninit(&ofpacts); |
f25d0cf3 | 6196 | return error; |
75a75043 BP |
6197 | } |
6198 | ||
90bf1e07 | 6199 | static enum ofperr |
7338102b | 6200 | handle_flow_mod__(struct ofproto *ofproto, const struct ofputil_flow_mod *fm, |
0a0d9385 | 6201 | const struct openflow_mod_requester *req) |
15aaf599 | 6202 | OVS_EXCLUDED(ofproto_mutex) |
75a75043 | 6203 | { |
7338102b | 6204 | struct ofproto_flow_mod ofm; |
35412852 | 6205 | enum ofperr error; |
75a75043 | 6206 | |
2c7ee524 | 6207 | error = ofproto_flow_mod_init(ofproto, &ofm, fm, NULL); |
5bacd5cd JR |
6208 | if (error) { |
6209 | return error; | |
6210 | } | |
7338102b | 6211 | |
15aaf599 | 6212 | ovs_mutex_lock(&ofproto_mutex); |
7338102b JR |
6213 | ofm.version = ofproto->tables_version + 1; |
6214 | error = ofproto_flow_mod_start(ofproto, &ofm); | |
1f42be1c | 6215 | if (!error) { |
39c94593 | 6216 | ofproto_bump_tables_version(ofproto); |
146ee626 | 6217 | error = ofproto_flow_mod_finish(ofproto, &ofm, req); |
2c7ee524 | 6218 | ofmonitor_flush(ofproto->connmgr); |
3052b0c5 | 6219 | } |
15aaf599 | 6220 | ovs_mutex_unlock(&ofproto_mutex); |
35412852 | 6221 | |
35412852 | 6222 | return error; |
3052b0c5 BP |
6223 | } |
6224 | ||
90bf1e07 | 6225 | static enum ofperr |
d1e2cf21 | 6226 | handle_role_request(struct ofconn *ofconn, const struct ofp_header *oh) |
9deba63b | 6227 | { |
f4f1ea7e BP |
6228 | struct ofputil_role_request request; |
6229 | struct ofputil_role_request reply; | |
9deba63b | 6230 | struct ofpbuf *buf; |
6ea4776b JR |
6231 | enum ofperr error; |
6232 | ||
f4f1ea7e | 6233 | error = ofputil_decode_role_message(oh, &request); |
6ea4776b JR |
6234 | if (error) { |
6235 | return error; | |
6236 | } | |
9deba63b | 6237 | |
f4f1ea7e | 6238 | if (request.role != OFPCR12_ROLE_NOCHANGE) { |
d26eda9f BP |
6239 | if (request.role != OFPCR12_ROLE_EQUAL |
6240 | && request.have_generation_id | |
807152a4 | 6241 | && !ofconn_set_primary_election_id(ofconn, request.generation_id)) { |
f4f1ea7e | 6242 | return OFPERR_OFPRRFC_STALE; |
6ea4776b | 6243 | } |
6ea4776b | 6244 | |
f4f1ea7e BP |
6245 | ofconn_set_role(ofconn, request.role); |
6246 | } | |
9deba63b | 6247 | |
f4f1ea7e | 6248 | reply.role = ofconn_get_role(ofconn); |
807152a4 | 6249 | reply.have_generation_id = ofconn_get_primary_election_id( |
147cc9d3 | 6250 | ofconn, &reply.generation_id); |
f4f1ea7e | 6251 | buf = ofputil_encode_role_reply(oh, &reply); |
b0421aa2 | 6252 | ofconn_send_reply(ofconn, buf); |
9deba63b BP |
6253 | |
6254 | return 0; | |
6255 | } | |
6256 | ||
90bf1e07 | 6257 | static enum ofperr |
6c1491fb BP |
6258 | handle_nxt_flow_mod_table_id(struct ofconn *ofconn, |
6259 | const struct ofp_header *oh) | |
6260 | { | |
225c33ba BP |
6261 | bool enable = ofputil_decode_nx_flow_mod_table_id(oh); |
6262 | enum ofputil_protocol cur = ofconn_get_protocol(ofconn); | |
6263 | ofconn_set_protocol(ofconn, ofputil_protocol_set_tid(cur, enable)); | |
6c1491fb | 6264 | |
6c1491fb BP |
6265 | return 0; |
6266 | } | |
6267 | ||
90bf1e07 | 6268 | static enum ofperr |
d1e2cf21 | 6269 | handle_nxt_set_flow_format(struct ofconn *ofconn, const struct ofp_header *oh) |
09246b99 | 6270 | { |
225c33ba | 6271 | enum ofputil_protocol next_base = ofputil_decode_nx_set_flow_format(oh); |
27527aa0 | 6272 | if (!next_base) { |
90bf1e07 | 6273 | return OFPERR_OFPBRC_EPERM; |
09246b99 | 6274 | } |
7ee20df1 | 6275 | |
225c33ba BP |
6276 | enum ofputil_protocol cur = ofconn_get_protocol(ofconn); |
6277 | ofconn_set_protocol(ofconn, ofputil_protocol_set_base(cur, next_base)); | |
b20f4073 | 6278 | |
7ee20df1 | 6279 | return 0; |
09246b99 BP |
6280 | } |
6281 | ||
90bf1e07 | 6282 | static enum ofperr |
54834960 EJ |
6283 | handle_nxt_set_packet_in_format(struct ofconn *ofconn, |
6284 | const struct ofp_header *oh) | |
6285 | { | |
d8790c08 BP |
6286 | enum ofputil_packet_in_format format; |
6287 | enum ofperr error = ofputil_decode_set_packet_in_format(oh, &format); | |
6288 | if (!error) { | |
6289 | ofconn_set_packet_in_format(ofconn, format); | |
54834960 | 6290 | } |
d8790c08 | 6291 | return error; |
54834960 EJ |
6292 | } |
6293 | ||
80d5aefd BP |
6294 | static enum ofperr |
6295 | handle_nxt_set_async_config(struct ofconn *ofconn, const struct ofp_header *oh) | |
6296 | { | |
5876b4db BP |
6297 | struct ofputil_async_cfg basis = ofconn_get_async_config(ofconn); |
6298 | struct ofputil_async_cfg ac; | |
d18cc1ee | 6299 | enum ofperr error; |
80d5aefd | 6300 | |
5876b4db | 6301 | error = ofputil_decode_set_async_config(oh, false, &basis, &ac); |
d18cc1ee AA |
6302 | if (error) { |
6303 | return error; | |
6304 | } | |
80d5aefd | 6305 | |
a930d4c5 | 6306 | ofconn_set_async_config(ofconn, &ac); |
4550b647 MM |
6307 | if (ofconn_get_type(ofconn) == OFCONN_SERVICE && |
6308 | !ofconn_get_miss_send_len(ofconn)) { | |
6309 | ofconn_set_miss_send_len(ofconn, OFP_DEFAULT_MISS_SEND_LEN); | |
6310 | } | |
80d5aefd BP |
6311 | |
6312 | return 0; | |
6313 | } | |
6314 | ||
c423b3b3 AC |
6315 | static enum ofperr |
6316 | handle_nxt_get_async_request(struct ofconn *ofconn, const struct ofp_header *oh) | |
6317 | { | |
a930d4c5 | 6318 | struct ofputil_async_cfg ac = ofconn_get_async_config(ofconn); |
af7bc161 | 6319 | ofconn_send_reply(ofconn, ofputil_encode_get_async_reply(oh, &ac)); |
c423b3b3 AC |
6320 | |
6321 | return 0; | |
6322 | } | |
6323 | ||
a7349929 BP |
6324 | static enum ofperr |
6325 | handle_nxt_set_controller_id(struct ofconn *ofconn, | |
6326 | const struct ofp_header *oh) | |
6327 | { | |
982697a4 | 6328 | const struct nx_controller_id *nci = ofpmsg_body(oh); |
a7349929 | 6329 | |
a7349929 BP |
6330 | if (!is_all_zeros(nci->zero, sizeof nci->zero)) { |
6331 | return OFPERR_NXBRC_MUST_BE_ZERO; | |
6332 | } | |
6333 | ||
6334 | ofconn_set_controller_id(ofconn, ntohs(nci->controller_id)); | |
6335 | return 0; | |
6336 | } | |
6337 | ||
90bf1e07 | 6338 | static enum ofperr |
d1e2cf21 | 6339 | handle_barrier_request(struct ofconn *ofconn, const struct ofp_header *oh) |
246e61ea | 6340 | { |
246e61ea JP |
6341 | struct ofpbuf *buf; |
6342 | ||
982697a4 BP |
6343 | buf = ofpraw_alloc_reply((oh->version == OFP10_VERSION |
6344 | ? OFPRAW_OFPT10_BARRIER_REPLY | |
6345 | : OFPRAW_OFPT11_BARRIER_REPLY), oh, 0); | |
b0421aa2 | 6346 | ofconn_send_reply(ofconn, buf); |
246e61ea JP |
6347 | return 0; |
6348 | } | |
6349 | ||
2b07c8b1 BP |
6350 | static void |
6351 | ofproto_compose_flow_refresh_update(const struct rule *rule, | |
6352 | enum nx_flow_monitor_flags flags, | |
140f36ba DDP |
6353 | struct ovs_list *msgs, |
6354 | const struct tun_table *tun_table) | |
15aaf599 | 6355 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 | 6356 | { |
6f00e29b | 6357 | const struct rule_actions *actions; |
2b07c8b1 BP |
6358 | struct ofputil_flow_update fu; |
6359 | ||
2b07c8b1 BP |
6360 | fu.event = (flags & (NXFMF_INITIAL | NXFMF_ADD) |
6361 | ? NXFME_ADDED : NXFME_MODIFIED); | |
6362 | fu.reason = 0; | |
d10976b7 | 6363 | ovs_mutex_lock(&rule->mutex); |
2b07c8b1 BP |
6364 | fu.idle_timeout = rule->idle_timeout; |
6365 | fu.hard_timeout = rule->hard_timeout; | |
d10976b7 | 6366 | ovs_mutex_unlock(&rule->mutex); |
2b07c8b1 BP |
6367 | fu.table_id = rule->table_id; |
6368 | fu.cookie = rule->flow_cookie; | |
140f36ba | 6369 | minimatch_expand(&rule->cr.match, &fu.match); |
6b140a4e | 6370 | fu.priority = rule->cr.priority; |
6f00e29b | 6371 | |
b20f4073 | 6372 | actions = flags & NXFMF_ACTIONS ? rule_get_actions(rule) : NULL; |
6f00e29b BP |
6373 | fu.ofpacts = actions ? actions->ofpacts : NULL; |
6374 | fu.ofpacts_len = actions ? actions->ofpacts_len : 0; | |
2b07c8b1 | 6375 | |
417e7e66 | 6376 | if (ovs_list_is_empty(msgs)) { |
2b07c8b1 BP |
6377 | ofputil_start_flow_update(msgs); |
6378 | } | |
140f36ba | 6379 | ofputil_append_flow_update(&fu, msgs, tun_table); |
2b07c8b1 BP |
6380 | } |
6381 | ||
6382 | void | |
a8e547c1 | 6383 | ofmonitor_compose_refresh_updates(struct rule_collection *rules, |
ca6ba700 | 6384 | struct ovs_list *msgs) |
15aaf599 | 6385 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 | 6386 | { |
fe59694b | 6387 | struct rule *rule; |
2b07c8b1 | 6388 | |
fe59694b | 6389 | RULE_COLLECTION_FOR_EACH (rule, rules) { |
2b07c8b1 BP |
6390 | enum nx_flow_monitor_flags flags = rule->monitor_flags; |
6391 | rule->monitor_flags = 0; | |
6392 | ||
140f36ba DDP |
6393 | ofproto_compose_flow_refresh_update(rule, flags, msgs, |
6394 | ofproto_get_tun_tab(rule->ofproto)); | |
2b07c8b1 BP |
6395 | } |
6396 | } | |
6397 | ||
6398 | static void | |
6399 | ofproto_collect_ofmonitor_refresh_rule(const struct ofmonitor *m, | |
6400 | struct rule *rule, uint64_t seqno, | |
a8e547c1 | 6401 | struct rule_collection *rules) |
15aaf599 | 6402 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
6403 | { |
6404 | enum nx_flow_monitor_flags update; | |
6405 | ||
5e8b38b0 | 6406 | if (rule_is_hidden(rule)) { |
2b07c8b1 BP |
6407 | return; |
6408 | } | |
6409 | ||
b20f4073 | 6410 | if (!ofproto_rule_has_out_port(rule, m->out_port)) { |
2b07c8b1 BP |
6411 | return; |
6412 | } | |
6413 | ||
6414 | if (seqno) { | |
6415 | if (rule->add_seqno > seqno) { | |
6416 | update = NXFMF_ADD | NXFMF_MODIFY; | |
6417 | } else if (rule->modify_seqno > seqno) { | |
6418 | update = NXFMF_MODIFY; | |
6419 | } else { | |
6420 | return; | |
6421 | } | |
6422 | ||
6423 | if (!(m->flags & update)) { | |
6424 | return; | |
6425 | } | |
6426 | } else { | |
6427 | update = NXFMF_INITIAL; | |
6428 | } | |
6429 | ||
6430 | if (!rule->monitor_flags) { | |
a8e547c1 | 6431 | rule_collection_add(rules, rule); |
2b07c8b1 BP |
6432 | } |
6433 | rule->monitor_flags |= update | (m->flags & NXFMF_ACTIONS); | |
6434 | } | |
6435 | ||
6436 | static void | |
6437 | ofproto_collect_ofmonitor_refresh_rules(const struct ofmonitor *m, | |
6438 | uint64_t seqno, | |
a8e547c1 | 6439 | struct rule_collection *rules) |
15aaf599 | 6440 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
6441 | { |
6442 | const struct ofproto *ofproto = ofconn_get_ofproto(m->ofconn); | |
2b07c8b1 | 6443 | const struct oftable *table; |
81a76618 | 6444 | struct cls_rule target; |
2b07c8b1 | 6445 | |
bd53aa17 | 6446 | cls_rule_init_from_minimatch(&target, &m->match, 0); |
2b07c8b1 | 6447 | FOR_EACH_MATCHING_TABLE (table, m->table_id, ofproto) { |
2b07c8b1 BP |
6448 | struct rule *rule; |
6449 | ||
44e0c35d | 6450 | CLS_FOR_EACH_TARGET (rule, cr, &table->cls, &target, OVS_VERSION_MAX) { |
2b07c8b1 BP |
6451 | ofproto_collect_ofmonitor_refresh_rule(m, rule, seqno, rules); |
6452 | } | |
6453 | } | |
48d28ac1 | 6454 | cls_rule_destroy(&target); |
2b07c8b1 BP |
6455 | } |
6456 | ||
6457 | static void | |
6458 | ofproto_collect_ofmonitor_initial_rules(struct ofmonitor *m, | |
a8e547c1 | 6459 | struct rule_collection *rules) |
15aaf599 | 6460 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
6461 | { |
6462 | if (m->flags & NXFMF_INITIAL) { | |
6463 | ofproto_collect_ofmonitor_refresh_rules(m, 0, rules); | |
6464 | } | |
6465 | } | |
6466 | ||
6467 | void | |
6468 | ofmonitor_collect_resume_rules(struct ofmonitor *m, | |
a8e547c1 | 6469 | uint64_t seqno, struct rule_collection *rules) |
15aaf599 | 6470 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
6471 | { |
6472 | ofproto_collect_ofmonitor_refresh_rules(m, seqno, rules); | |
6473 | } | |
6474 | ||
7b900689 SH |
6475 | static enum ofperr |
6476 | flow_monitor_delete(struct ofconn *ofconn, uint32_t id) | |
6477 | OVS_REQUIRES(ofproto_mutex) | |
6478 | { | |
6479 | struct ofmonitor *m; | |
6480 | enum ofperr error; | |
6481 | ||
6482 | m = ofmonitor_lookup(ofconn, id); | |
6483 | if (m) { | |
6484 | ofmonitor_destroy(m); | |
6485 | error = 0; | |
6486 | } else { | |
6487 | error = OFPERR_OFPMOFC_UNKNOWN_MONITOR; | |
6488 | } | |
6489 | ||
6490 | return error; | |
6491 | } | |
6492 | ||
2b07c8b1 | 6493 | static enum ofperr |
af3c51ae | 6494 | handle_flow_monitor_request(struct ofconn *ofconn, const struct ovs_list *msgs) |
15aaf599 | 6495 | OVS_EXCLUDED(ofproto_mutex) |
2b07c8b1 BP |
6496 | { |
6497 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
2b07c8b1 | 6498 | |
0a2869d5 BP |
6499 | struct ofmonitor **monitors = NULL; |
6500 | size_t allocated_monitors = 0; | |
6501 | size_t n_monitors = 0; | |
6502 | ||
15aaf599 | 6503 | ovs_mutex_lock(&ofproto_mutex); |
af3c51ae BP |
6504 | struct ofpbuf *b; |
6505 | LIST_FOR_EACH (b, list_node, msgs) { | |
6506 | for (;;) { | |
6507 | enum ofperr error; | |
2b07c8b1 | 6508 | |
af3c51ae BP |
6509 | struct ofputil_flow_monitor_request request; |
6510 | int retval = ofputil_decode_flow_monitor_request(&request, b); | |
6511 | if (retval == EOF) { | |
6512 | break; | |
6513 | } else if (retval) { | |
6514 | error = retval; | |
6515 | goto error; | |
6516 | } | |
2b07c8b1 | 6517 | |
af3c51ae BP |
6518 | if (request.table_id != OFPTT_ALL |
6519 | && request.table_id >= ofproto->n_tables) { | |
6520 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
6521 | goto error; | |
6522 | } | |
2b07c8b1 | 6523 | |
af3c51ae BP |
6524 | struct ofmonitor *m; |
6525 | error = ofmonitor_create(&request, ofconn, &m); | |
6526 | if (error) { | |
6527 | goto error; | |
6528 | } | |
6529 | ||
6530 | if (n_monitors >= allocated_monitors) { | |
6531 | monitors = x2nrealloc(monitors, &allocated_monitors, | |
6532 | sizeof *monitors); | |
6533 | } | |
6534 | monitors[n_monitors++] = m; | |
6535 | continue; | |
6536 | ||
6537 | error: | |
6538 | ofconn_send_error(ofconn, b->data, error); | |
6539 | ||
6540 | for (size_t i = 0; i < n_monitors; i++) { | |
6541 | ofmonitor_destroy(monitors[i]); | |
6542 | } | |
6543 | free(monitors); | |
6544 | ovs_mutex_unlock(&ofproto_mutex); | |
2b07c8b1 | 6545 | |
af3c51ae | 6546 | return error; |
2b07c8b1 | 6547 | } |
2b07c8b1 BP |
6548 | } |
6549 | ||
0a2869d5 | 6550 | struct rule_collection rules; |
a8e547c1 | 6551 | rule_collection_init(&rules); |
0a2869d5 | 6552 | for (size_t i = 0; i < n_monitors; i++) { |
2b07c8b1 BP |
6553 | ofproto_collect_ofmonitor_initial_rules(monitors[i], &rules); |
6554 | } | |
6555 | ||
0a2869d5 | 6556 | struct ovs_list replies; |
af3c51ae | 6557 | ofpmp_init(&replies, ofpbuf_from_list(ovs_list_back(msgs))->header); |
2b07c8b1 | 6558 | ofmonitor_compose_refresh_updates(&rules, &replies); |
15aaf599 BP |
6559 | ovs_mutex_unlock(&ofproto_mutex); |
6560 | ||
a8e547c1 BP |
6561 | rule_collection_destroy(&rules); |
6562 | ||
2b07c8b1 | 6563 | ofconn_send_replies(ofconn, &replies); |
2b07c8b1 BP |
6564 | free(monitors); |
6565 | ||
6566 | return 0; | |
2b07c8b1 BP |
6567 | } |
6568 | ||
6569 | static enum ofperr | |
6570 | handle_flow_monitor_cancel(struct ofconn *ofconn, const struct ofp_header *oh) | |
15aaf599 | 6571 | OVS_EXCLUDED(ofproto_mutex) |
2b07c8b1 | 6572 | { |
15aaf599 | 6573 | enum ofperr error; |
2b07c8b1 BP |
6574 | uint32_t id; |
6575 | ||
6576 | id = ofputil_decode_flow_monitor_cancel(oh); | |
15aaf599 BP |
6577 | |
6578 | ovs_mutex_lock(&ofproto_mutex); | |
7b900689 | 6579 | error = flow_monitor_delete(ofconn, id); |
15aaf599 | 6580 | ovs_mutex_unlock(&ofproto_mutex); |
2b07c8b1 | 6581 | |
15aaf599 | 6582 | return error; |
2b07c8b1 BP |
6583 | } |
6584 | ||
9cae45dc JR |
6585 | /* Meters implementation. |
6586 | * | |
6587 | * Meter table entry, indexed by the OpenFlow meter_id. | |
9cae45dc JR |
6588 | * 'created' is used to compute the duration for meter stats. |
6589 | * 'list rules' is needed so that we can delete the dependent rules when the | |
6590 | * meter table entry is deleted. | |
6591 | * 'provider_meter_id' is for the provider's private use. | |
6592 | */ | |
6593 | struct meter { | |
ba8cff36 | 6594 | struct hmap_node node; /* In ofproto->meters. */ |
9cae45dc | 6595 | long long int created; /* Time created. */ |
ca6ba700 | 6596 | struct ovs_list rules; /* List of "struct rule_dpif"s. */ |
ba8cff36 | 6597 | uint32_t id; /* OpenFlow meter_id. */ |
9cae45dc JR |
6598 | ofproto_meter_id provider_meter_id; |
6599 | uint16_t flags; /* Meter flags. */ | |
6600 | uint16_t n_bands; /* Number of meter bands. */ | |
6601 | struct ofputil_meter_band *bands; | |
6602 | }; | |
6603 | ||
ba8cff36 AZ |
6604 | static struct meter * |
6605 | ofproto_get_meter(const struct ofproto *ofproto, uint32_t meter_id) | |
6606 | { | |
6607 | struct meter *meter; | |
6608 | uint32_t hash = hash_int(meter_id, 0); | |
6609 | ||
6610 | HMAP_FOR_EACH_WITH_HASH (meter, node, hash, &ofproto->meters) { | |
6611 | if (meter->id == meter_id) { | |
6612 | return meter; | |
6613 | } | |
6614 | } | |
6615 | ||
6616 | return NULL; | |
6617 | } | |
6618 | ||
9e638f22 AZ |
6619 | static uint32_t * |
6620 | ofproto_upcall_meter_ptr(struct ofproto *ofproto, uint32_t meter_id) | |
6621 | { | |
6622 | switch(meter_id) { | |
6623 | case OFPM13_SLOWPATH: | |
6624 | return &ofproto->slowpath_meter_id; | |
6625 | break; | |
6626 | case OFPM13_CONTROLLER: | |
6627 | return &ofproto->controller_meter_id; | |
6628 | break; | |
6629 | case OFPM13_ALL: | |
6630 | OVS_NOT_REACHED(); | |
6631 | default: | |
6632 | return NULL; | |
6633 | } | |
6634 | } | |
6635 | ||
ba8cff36 AZ |
6636 | static void |
6637 | ofproto_add_meter(struct ofproto *ofproto, struct meter *meter) | |
6638 | { | |
9e638f22 AZ |
6639 | uint32_t *upcall_meter_ptr = ofproto_upcall_meter_ptr(ofproto, meter->id); |
6640 | ||
6641 | /* Cache datapath meter IDs of special meters. */ | |
6642 | if (upcall_meter_ptr) { | |
6643 | *upcall_meter_ptr = meter->provider_meter_id.uint32; | |
6644 | } | |
6645 | ||
ba8cff36 AZ |
6646 | hmap_insert(&ofproto->meters, &meter->node, hash_int(meter->id, 0)); |
6647 | } | |
6648 | ||
9cae45dc | 6649 | /* |
076caa2f JR |
6650 | * This is used in instruction validation at flow set-up time, to map |
6651 | * the OpenFlow meter ID to the corresponding datapath provider meter | |
6652 | * ID. If either does not exist, returns false. Otherwise updates | |
6653 | * the meter action and returns true. | |
9cae45dc | 6654 | */ |
076caa2f JR |
6655 | static bool |
6656 | ofproto_fix_meter_action(const struct ofproto *ofproto, | |
6657 | struct ofpact_meter *ma) | |
6658 | { | |
ba8cff36 AZ |
6659 | if (ma->meter_id) { |
6660 | const struct meter *meter = ofproto_get_meter(ofproto, ma->meter_id); | |
076caa2f JR |
6661 | |
6662 | if (meter && meter->provider_meter_id.uint32 != UINT32_MAX) { | |
6663 | /* Update the action with the provider's meter ID, so that we | |
6664 | * do not need any synchronization between ofproto_dpif_xlate | |
6665 | * and ofproto for meter table access. */ | |
6666 | ma->provider_meter_id = meter->provider_meter_id.uint32; | |
6667 | return true; | |
9cae45dc JR |
6668 | } |
6669 | } | |
076caa2f | 6670 | return false; |
9cae45dc JR |
6671 | } |
6672 | ||
206ddb9a JP |
6673 | /* This is used in instruction validation at flow set-up time, to map |
6674 | * the OpenFlow meter ID in a controller action to the corresponding | |
6675 | * datapath provider meter ID. If either does not exist, sets the | |
6676 | * provider meter id to a value to prevent the provider from using it | |
6677 | * and returns false. Otherwise, updates the meter action and returns | |
6678 | * true. */ | |
6679 | static bool | |
6680 | ofproto_fix_controller_action(const struct ofproto *ofproto, | |
6681 | struct ofpact_controller *ca) | |
6682 | { | |
6683 | if (ca->meter_id == NX_CTLR_NO_METER) { | |
6684 | ca->provider_meter_id = UINT32_MAX; | |
6685 | return true; | |
6686 | } | |
6687 | ||
6688 | const struct meter *meter = ofproto_get_meter(ofproto, ca->meter_id); | |
6689 | ||
6690 | if (meter && meter->provider_meter_id.uint32 != UINT32_MAX) { | |
6691 | /* Update the action with the provider's meter ID, so that we | |
6692 | * do not need any synchronization between ofproto_dpif_xlate | |
6693 | * and ofproto for meter table access. */ | |
6694 | ca->provider_meter_id = meter->provider_meter_id.uint32; | |
6695 | return true; | |
6696 | } | |
6697 | ||
6698 | /* Prevent the meter from being set by the ofproto provider. */ | |
6699 | ca->provider_meter_id = UINT32_MAX; | |
6700 | return false; | |
6701 | } | |
6702 | ||
062fea06 BP |
6703 | /* Finds the meter invoked by 'rule''s actions and adds 'rule' to the meter's |
6704 | * list of rules. */ | |
6705 | static void | |
6706 | meter_insert_rule(struct rule *rule) | |
6707 | { | |
6708 | const struct rule_actions *a = rule_get_actions(rule); | |
6709 | uint32_t meter_id = ofpacts_get_meter(a->ofpacts, a->ofpacts_len); | |
ba8cff36 | 6710 | struct meter *meter = ofproto_get_meter(rule->ofproto, meter_id); |
062fea06 | 6711 | |
417e7e66 | 6712 | ovs_list_insert(&meter->rules, &rule->meter_list_node); |
062fea06 BP |
6713 | } |
6714 | ||
9cae45dc JR |
6715 | static void |
6716 | meter_update(struct meter *meter, const struct ofputil_meter_config *config) | |
6717 | { | |
6718 | free(meter->bands); | |
6719 | ||
6720 | meter->flags = config->flags; | |
6721 | meter->n_bands = config->n_bands; | |
6722 | meter->bands = xmemdup(config->bands, | |
6723 | config->n_bands * sizeof *meter->bands); | |
6724 | } | |
6725 | ||
6726 | static struct meter * | |
6727 | meter_create(const struct ofputil_meter_config *config, | |
6728 | ofproto_meter_id provider_meter_id) | |
6729 | { | |
6730 | struct meter *meter; | |
6731 | ||
6732 | meter = xzalloc(sizeof *meter); | |
6733 | meter->provider_meter_id = provider_meter_id; | |
6734 | meter->created = time_msec(); | |
ba8cff36 | 6735 | meter->id = config->meter_id; |
417e7e66 | 6736 | ovs_list_init(&meter->rules); |
9cae45dc JR |
6737 | |
6738 | meter_update(meter, config); | |
6739 | ||
6740 | return meter; | |
6741 | } | |
6742 | ||
6b3f7f02 | 6743 | static void |
ba8cff36 | 6744 | meter_destroy(struct ofproto *ofproto, struct meter *meter) |
15aaf599 | 6745 | OVS_REQUIRES(ofproto_mutex) |
6b3f7f02 | 6746 | { |
9e638f22 AZ |
6747 | uint32_t *upcall_meter_ptr; |
6748 | upcall_meter_ptr = ofproto_upcall_meter_ptr(ofproto, meter->id); | |
6749 | if (upcall_meter_ptr) { | |
6750 | *upcall_meter_ptr = UINT32_MAX; | |
6751 | } | |
6752 | ||
ba8cff36 AZ |
6753 | if (!ovs_list_is_empty(&meter->rules)) { |
6754 | struct rule_collection rules; | |
6755 | struct rule *rule; | |
3059d7e5 | 6756 | |
ba8cff36 AZ |
6757 | rule_collection_init(&rules); |
6758 | LIST_FOR_EACH (rule, meter_list_node, &meter->rules) { | |
6759 | rule_collection_add(&rules, rule); | |
6760 | } | |
6761 | delete_flows__(&rules, OFPRR_METER_DELETE, NULL); | |
6762 | } | |
3059d7e5 | 6763 | |
ba8cff36 AZ |
6764 | ofproto->ofproto_class->meter_del(ofproto, meter->provider_meter_id); |
6765 | free(meter->bands); | |
6766 | free(meter); | |
6767 | } | |
3059d7e5 | 6768 | |
ba8cff36 AZ |
6769 | static void |
6770 | meter_delete(struct ofproto *ofproto, uint32_t meter_id) | |
6771 | OVS_REQUIRES(ofproto_mutex) | |
6772 | { | |
6773 | struct meter *meter = ofproto_get_meter(ofproto, meter_id); | |
6774 | ||
6775 | if (meter) { | |
6776 | hmap_remove(&ofproto->meters, &meter->node); | |
6777 | meter_destroy(ofproto, meter); | |
6778 | } | |
6779 | } | |
6780 | ||
6781 | static void | |
6782 | meter_delete_all(struct ofproto *ofproto) | |
6783 | OVS_REQUIRES(ofproto_mutex) | |
6784 | { | |
6785 | struct meter *meter, *next; | |
6786 | ||
6787 | HMAP_FOR_EACH_SAFE (meter, next, node, &ofproto->meters) { | |
6788 | hmap_remove(&ofproto->meters, &meter->node); | |
6789 | meter_destroy(ofproto, meter); | |
6b3f7f02 JR |
6790 | } |
6791 | } | |
6792 | ||
9cae45dc JR |
6793 | static enum ofperr |
6794 | handle_add_meter(struct ofproto *ofproto, struct ofputil_meter_mod *mm) | |
6795 | { | |
6796 | ofproto_meter_id provider_meter_id = { UINT32_MAX }; | |
ba8cff36 | 6797 | struct meter *meter = ofproto_get_meter(ofproto, mm->meter.meter_id); |
9cae45dc JR |
6798 | enum ofperr error; |
6799 | ||
ba8cff36 | 6800 | if (meter) { |
9cae45dc JR |
6801 | return OFPERR_OFPMMFC_METER_EXISTS; |
6802 | } | |
6803 | ||
6804 | error = ofproto->ofproto_class->meter_set(ofproto, &provider_meter_id, | |
6805 | &mm->meter); | |
6806 | if (!error) { | |
6807 | ovs_assert(provider_meter_id.uint32 != UINT32_MAX); | |
ba8cff36 AZ |
6808 | meter = meter_create(&mm->meter, provider_meter_id); |
6809 | ofproto_add_meter(ofproto, meter); | |
9cae45dc | 6810 | } |
f0f8c6c2 | 6811 | return error; |
9cae45dc JR |
6812 | } |
6813 | ||
6814 | static enum ofperr | |
6815 | handle_modify_meter(struct ofproto *ofproto, struct ofputil_meter_mod *mm) | |
6816 | { | |
ba8cff36 | 6817 | struct meter *meter = ofproto_get_meter(ofproto, mm->meter.meter_id); |
9cae45dc | 6818 | enum ofperr error; |
e555eb7c | 6819 | uint32_t provider_meter_id; |
9cae45dc JR |
6820 | |
6821 | if (!meter) { | |
6822 | return OFPERR_OFPMMFC_UNKNOWN_METER; | |
6823 | } | |
6824 | ||
e555eb7c | 6825 | provider_meter_id = meter->provider_meter_id.uint32; |
9cae45dc JR |
6826 | error = ofproto->ofproto_class->meter_set(ofproto, |
6827 | &meter->provider_meter_id, | |
6828 | &mm->meter); | |
e555eb7c | 6829 | ovs_assert(meter->provider_meter_id.uint32 == provider_meter_id); |
9cae45dc JR |
6830 | if (!error) { |
6831 | meter_update(meter, &mm->meter); | |
6832 | } | |
6833 | return error; | |
6834 | } | |
6835 | ||
6836 | static enum ofperr | |
baae3d02 | 6837 | handle_delete_meter(struct ofconn *ofconn, struct ofputil_meter_mod *mm) |
15aaf599 | 6838 | OVS_EXCLUDED(ofproto_mutex) |
9cae45dc JR |
6839 | { |
6840 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
6841 | uint32_t meter_id = mm->meter.meter_id; | |
9cae45dc | 6842 | |
ba8cff36 AZ |
6843 | /* OpenFlow does not support Meter ID 0. */ |
6844 | if (meter_id) { | |
6845 | ovs_mutex_lock(&ofproto_mutex); | |
6846 | ||
6847 | if (meter_id == OFPM13_ALL) { | |
6848 | meter_delete_all(ofproto); | |
6849 | } else { | |
6850 | meter_delete(ofproto, meter_id); | |
9cae45dc | 6851 | } |
9cae45dc | 6852 | |
ba8cff36 AZ |
6853 | ovs_mutex_unlock(&ofproto_mutex); |
6854 | } | |
a8e547c1 | 6855 | |
ba8cff36 | 6856 | return 0; |
9cae45dc JR |
6857 | } |
6858 | ||
6859 | static enum ofperr | |
6860 | handle_meter_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
6861 | { | |
6862 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
6863 | struct ofputil_meter_mod mm; | |
6864 | uint64_t bands_stub[256 / 8]; | |
6865 | struct ofpbuf bands; | |
6866 | uint32_t meter_id; | |
6867 | enum ofperr error; | |
6868 | ||
807152a4 | 6869 | error = reject_secondary_controller(ofconn); |
9cae45dc JR |
6870 | if (error) { |
6871 | return error; | |
6872 | } | |
6873 | ||
6874 | ofpbuf_use_stub(&bands, bands_stub, sizeof bands_stub); | |
6875 | ||
6876 | error = ofputil_decode_meter_mod(oh, &mm, &bands); | |
6877 | if (error) { | |
6878 | goto exit_free_bands; | |
6879 | } | |
6880 | ||
6881 | meter_id = mm.meter.meter_id; | |
6882 | ||
6883 | if (mm.command != OFPMC13_DELETE) { | |
6884 | /* Fails also when meters are not implemented by the provider. */ | |
9e638f22 | 6885 | if (ofproto->meter_features.max_meters == 0) { |
9cae45dc JR |
6886 | error = OFPERR_OFPMMFC_INVALID_METER; |
6887 | goto exit_free_bands; | |
9e638f22 AZ |
6888 | } |
6889 | ||
6890 | if (meter_id == 0) { | |
6891 | error = OFPERR_OFPMMFC_INVALID_METER; | |
b31e8700 | 6892 | goto exit_free_bands; |
9e638f22 AZ |
6893 | } else if (meter_id > OFPM13_MAX) { |
6894 | switch(meter_id) { | |
6895 | case OFPM13_SLOWPATH: | |
6896 | case OFPM13_CONTROLLER: | |
6897 | break; | |
6898 | case OFPM13_ALL: | |
6899 | default: | |
6900 | error = OFPERR_OFPMMFC_INVALID_METER; | |
6901 | goto exit_free_bands; | |
6902 | } | |
9cae45dc JR |
6903 | } |
6904 | if (mm.meter.n_bands > ofproto->meter_features.max_bands) { | |
6905 | error = OFPERR_OFPMMFC_OUT_OF_BANDS; | |
6906 | goto exit_free_bands; | |
6907 | } | |
6908 | } | |
6909 | ||
6910 | switch (mm.command) { | |
6911 | case OFPMC13_ADD: | |
6912 | error = handle_add_meter(ofproto, &mm); | |
6913 | break; | |
6914 | ||
6915 | case OFPMC13_MODIFY: | |
6916 | error = handle_modify_meter(ofproto, &mm); | |
6917 | break; | |
6918 | ||
6919 | case OFPMC13_DELETE: | |
baae3d02 | 6920 | error = handle_delete_meter(ofconn, &mm); |
9cae45dc JR |
6921 | break; |
6922 | ||
6923 | default: | |
6924 | error = OFPERR_OFPMMFC_BAD_COMMAND; | |
6925 | break; | |
6926 | } | |
6927 | ||
3c35db62 NR |
6928 | if (!error) { |
6929 | struct ofputil_requestforward rf; | |
6930 | rf.xid = oh->xid; | |
6931 | rf.reason = OFPRFR_METER_MOD; | |
6932 | rf.meter_mod = &mm; | |
6933 | connmgr_send_requestforward(ofproto->connmgr, ofconn, &rf); | |
6934 | } | |
6935 | ||
9cae45dc JR |
6936 | exit_free_bands: |
6937 | ofpbuf_uninit(&bands); | |
6938 | return error; | |
6939 | } | |
6940 | ||
6941 | static enum ofperr | |
6942 | handle_meter_features_request(struct ofconn *ofconn, | |
6943 | const struct ofp_header *request) | |
6944 | { | |
6945 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
6946 | struct ofputil_meter_features features; | |
6947 | struct ofpbuf *b; | |
6948 | ||
6949 | if (ofproto->ofproto_class->meter_get_features) { | |
6950 | ofproto->ofproto_class->meter_get_features(ofproto, &features); | |
6951 | } else { | |
6952 | memset(&features, 0, sizeof features); | |
6953 | } | |
6954 | b = ofputil_encode_meter_features_reply(&features, request); | |
6955 | ||
6956 | ofconn_send_reply(ofconn, b); | |
6957 | return 0; | |
6958 | } | |
6959 | ||
ba8cff36 AZ |
6960 | static void |
6961 | meter_request_reply(struct ofproto *ofproto, struct meter *meter, | |
6962 | enum ofptype type, struct ovs_list *replies) | |
6963 | { | |
6964 | uint64_t bands_stub[256 / 8]; | |
6965 | struct ofpbuf bands; | |
6966 | ||
6967 | ofpbuf_use_stub(&bands, bands_stub, sizeof bands_stub); | |
6968 | ||
6969 | if (type == OFPTYPE_METER_STATS_REQUEST) { | |
6970 | struct ofputil_meter_stats stats; | |
6971 | ||
6972 | stats.meter_id = meter->id; | |
6973 | ||
6974 | /* Provider sets the packet and byte counts, we do the rest. */ | |
6975 | stats.flow_count = ovs_list_size(&meter->rules); | |
6976 | calc_duration(meter->created, time_msec(), | |
6977 | &stats.duration_sec, &stats.duration_nsec); | |
6978 | stats.n_bands = meter->n_bands; | |
6979 | ofpbuf_clear(&bands); | |
6980 | stats.bands = ofpbuf_put_uninit(&bands, meter->n_bands | |
6981 | * sizeof *stats.bands); | |
6982 | ||
6983 | if (!ofproto->ofproto_class->meter_get(ofproto, | |
6984 | meter->provider_meter_id, | |
6985 | &stats, meter->n_bands)) { | |
6986 | ofputil_append_meter_stats(replies, &stats); | |
6987 | } | |
6988 | } else { /* type == OFPTYPE_METER_CONFIG_REQUEST */ | |
6989 | struct ofputil_meter_config config; | |
6990 | ||
6991 | config.meter_id = meter->id; | |
6992 | config.flags = meter->flags; | |
6993 | config.n_bands = meter->n_bands; | |
6994 | config.bands = meter->bands; | |
6995 | ofputil_append_meter_config(replies, &config); | |
6996 | } | |
6997 | ||
6998 | ofpbuf_uninit(&bands); | |
6999 | } | |
7000 | ||
7001 | static void | |
7002 | meter_request_reply_all(struct ofproto *ofproto, enum ofptype type, | |
7003 | struct ovs_list *replies) | |
7004 | { | |
7005 | struct meter *meter; | |
7006 | ||
7007 | HMAP_FOR_EACH (meter, node, &ofproto->meters) { | |
7008 | meter_request_reply(ofproto, meter, type, replies); | |
7009 | } | |
7010 | } | |
7011 | ||
9cae45dc JR |
7012 | static enum ofperr |
7013 | handle_meter_request(struct ofconn *ofconn, const struct ofp_header *request, | |
7014 | enum ofptype type) | |
7015 | { | |
7016 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
ca6ba700 | 7017 | struct ovs_list replies; |
ba8cff36 AZ |
7018 | uint32_t meter_id; |
7019 | struct meter *meter; | |
9cae45dc JR |
7020 | |
7021 | ofputil_decode_meter_request(request, &meter_id); | |
7022 | ||
ba8cff36 AZ |
7023 | if (meter_id != OFPM13_ALL) { |
7024 | meter = ofproto_get_meter(ofproto, meter_id); | |
7025 | if (!meter) { | |
7026 | /* Meter does not exist. */ | |
9cae45dc JR |
7027 | return OFPERR_OFPMMFC_UNKNOWN_METER; |
7028 | } | |
ba8cff36 AZ |
7029 | } else { |
7030 | /* GCC 4.9.2 complains about 'meter' can potentially be used | |
7031 | * uninitialized. Logically, this is a false alarm since | |
7032 | * meter is only used when meter_id != OFPM13_ALL. | |
7033 | * Set NULL to make compiler happy. */ | |
7034 | meter = NULL; | |
9cae45dc JR |
7035 | } |
7036 | ||
9cae45dc | 7037 | ofpmp_init(&replies, request); |
ba8cff36 AZ |
7038 | if (meter_id == OFPM13_ALL) { |
7039 | meter_request_reply_all(ofproto, type, &replies); | |
7040 | } else { | |
7041 | meter_request_reply(ofproto, meter, type, &replies); | |
9cae45dc | 7042 | } |
9cae45dc | 7043 | ofconn_send_replies(ofconn, &replies); |
9cae45dc JR |
7044 | return 0; |
7045 | } | |
7046 | ||
db88b35c JR |
7047 | /* Returned group is RCU protected. */ |
7048 | static struct ofgroup * | |
5d08a275 JR |
7049 | ofproto_group_lookup__(const struct ofproto *ofproto, uint32_t group_id, |
7050 | ovs_version_t version) | |
db88b35c JR |
7051 | { |
7052 | struct ofgroup *group; | |
7053 | ||
7054 | CMAP_FOR_EACH_WITH_HASH (group, cmap_node, hash_int(group_id, 0), | |
7055 | &ofproto->groups) { | |
5d08a275 JR |
7056 | if (group->group_id == group_id |
7057 | && versions_visible_in_version(&group->versions, version)) { | |
db88b35c | 7058 | return group; |
7395c052 NZ |
7059 | } |
7060 | } | |
3fc3b679 | 7061 | |
db88b35c | 7062 | return NULL; |
7395c052 NZ |
7063 | } |
7064 | ||
3fc3b679 AZ |
7065 | /* If the group exists, this function increments the groups's reference count. |
7066 | * | |
7067 | * Make sure to call ofproto_group_unref() after no longer needing to maintain | |
7068 | * a reference to the group. */ | |
db88b35c | 7069 | struct ofgroup * |
76973237 | 7070 | ofproto_group_lookup(const struct ofproto *ofproto, uint32_t group_id, |
5d08a275 | 7071 | ovs_version_t version, bool take_ref) |
7395c052 | 7072 | { |
db88b35c | 7073 | struct ofgroup *group; |
7395c052 | 7074 | |
5d08a275 | 7075 | group = ofproto_group_lookup__(ofproto, group_id, version); |
76973237 | 7076 | if (group && take_ref) { |
db88b35c JR |
7077 | /* Not holding a lock, so it is possible that another thread releases |
7078 | * the last reference just before we manage to get one. */ | |
7079 | return ofproto_group_try_ref(group) ? group : NULL; | |
7395c052 | 7080 | } |
76973237 | 7081 | return group; |
7395c052 NZ |
7082 | } |
7083 | ||
cc099268 | 7084 | /* Caller should hold 'ofproto_mutex' if it is important that the |
db88b35c | 7085 | * group is not removed by someone else. */ |
7e9f8266 BP |
7086 | static bool |
7087 | ofproto_group_exists(const struct ofproto *ofproto, uint32_t group_id) | |
7e9f8266 | 7088 | { |
5d08a275 | 7089 | return ofproto_group_lookup__(ofproto, group_id, OVS_VERSION_MAX) != NULL; |
7e9f8266 BP |
7090 | } |
7091 | ||
cc099268 JR |
7092 | static void |
7093 | group_add_rule(struct ofgroup *group, struct rule *rule) | |
732feb93 | 7094 | { |
cc099268 JR |
7095 | rule_collection_add(&group->rules, rule); |
7096 | } | |
732feb93 | 7097 | |
cc099268 JR |
7098 | static void |
7099 | group_remove_rule(struct ofgroup *group, struct rule *rule) | |
7100 | { | |
7101 | rule_collection_remove(&group->rules, rule); | |
732feb93 SH |
7102 | } |
7103 | ||
7395c052 | 7104 | static void |
ca6ba700 | 7105 | append_group_stats(struct ofgroup *group, struct ovs_list *replies) |
cc099268 | 7106 | OVS_REQUIRES(ofproto_mutex) |
7395c052 NZ |
7107 | { |
7108 | struct ofputil_group_stats ogs; | |
eaf004bd | 7109 | const struct ofproto *ofproto = group->ofproto; |
7395c052 NZ |
7110 | long long int now = time_msec(); |
7111 | int error; | |
7112 | ||
646b2a9c SH |
7113 | ogs.bucket_stats = xmalloc(group->n_buckets * sizeof *ogs.bucket_stats); |
7114 | ||
732feb93 | 7115 | /* Provider sets the packet and byte counts, we do the rest. */ |
fe59694b | 7116 | ogs.ref_count = rule_collection_n(&group->rules); |
732feb93 SH |
7117 | ogs.n_buckets = group->n_buckets; |
7118 | ||
7395c052 NZ |
7119 | error = (ofproto->ofproto_class->group_get_stats |
7120 | ? ofproto->ofproto_class->group_get_stats(group, &ogs) | |
7121 | : EOPNOTSUPP); | |
7122 | if (error) { | |
7395c052 NZ |
7123 | ogs.packet_count = UINT64_MAX; |
7124 | ogs.byte_count = UINT64_MAX; | |
7395c052 NZ |
7125 | memset(ogs.bucket_stats, 0xff, |
7126 | ogs.n_buckets * sizeof *ogs.bucket_stats); | |
7127 | } | |
7128 | ||
7129 | ogs.group_id = group->group_id; | |
7130 | calc_duration(group->created, now, &ogs.duration_sec, &ogs.duration_nsec); | |
7131 | ||
7132 | ofputil_append_group_stats(replies, &ogs); | |
646b2a9c SH |
7133 | |
7134 | free(ogs.bucket_stats); | |
7395c052 NZ |
7135 | } |
7136 | ||
19187a71 BP |
7137 | static void |
7138 | handle_group_request(struct ofconn *ofconn, | |
7139 | const struct ofp_header *request, uint32_t group_id, | |
ca6ba700 | 7140 | void (*cb)(struct ofgroup *, struct ovs_list *replies)) |
cc099268 | 7141 | OVS_EXCLUDED(ofproto_mutex) |
7395c052 NZ |
7142 | { |
7143 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
7395c052 | 7144 | struct ofgroup *group; |
ca6ba700 | 7145 | struct ovs_list replies; |
7395c052 NZ |
7146 | |
7147 | ofpmp_init(&replies, request); | |
cc099268 JR |
7148 | /* Must exclude modifications to guarantee iterating groups. */ |
7149 | ovs_mutex_lock(&ofproto_mutex); | |
7395c052 | 7150 | if (group_id == OFPG_ALL) { |
db88b35c | 7151 | CMAP_FOR_EACH (group, cmap_node, &ofproto->groups) { |
3a46eaaf BP |
7152 | if (versions_visible_in_version(&group->versions, |
7153 | OVS_VERSION_MAX)) { | |
7154 | cb(group, &replies); | |
7155 | } | |
7395c052 | 7156 | } |
7395c052 | 7157 | } else { |
5d08a275 | 7158 | group = ofproto_group_lookup__(ofproto, group_id, OVS_VERSION_MAX); |
db88b35c | 7159 | if (group) { |
19187a71 | 7160 | cb(group, &replies); |
7395c052 NZ |
7161 | } |
7162 | } | |
cc099268 | 7163 | ovs_mutex_unlock(&ofproto_mutex); |
7395c052 | 7164 | ofconn_send_replies(ofconn, &replies); |
7395c052 NZ |
7165 | } |
7166 | ||
7167 | static enum ofperr | |
19187a71 BP |
7168 | handle_group_stats_request(struct ofconn *ofconn, |
7169 | const struct ofp_header *request) | |
7395c052 | 7170 | { |
19187a71 BP |
7171 | uint32_t group_id; |
7172 | enum ofperr error; | |
7395c052 | 7173 | |
19187a71 BP |
7174 | error = ofputil_decode_group_stats_request(request, &group_id); |
7175 | if (error) { | |
7176 | return error; | |
7395c052 | 7177 | } |
7395c052 | 7178 | |
19187a71 BP |
7179 | handle_group_request(ofconn, request, group_id, append_group_stats); |
7180 | return 0; | |
7181 | } | |
7182 | ||
7183 | static void | |
ca6ba700 | 7184 | append_group_desc(struct ofgroup *group, struct ovs_list *replies) |
19187a71 BP |
7185 | { |
7186 | struct ofputil_group_desc gds; | |
7395c052 | 7187 | |
19187a71 BP |
7188 | gds.group_id = group->group_id; |
7189 | gds.type = group->type; | |
53eb84a5 SH |
7190 | gds.props = group->props; |
7191 | ||
19187a71 BP |
7192 | ofputil_append_group_desc_reply(&gds, &group->buckets, replies); |
7193 | } | |
7194 | ||
7195 | static enum ofperr | |
7196 | handle_group_desc_stats_request(struct ofconn *ofconn, | |
7197 | const struct ofp_header *request) | |
7198 | { | |
7199 | handle_group_request(ofconn, request, | |
7200 | ofputil_decode_group_desc_request(request), | |
7201 | append_group_desc); | |
7395c052 NZ |
7202 | return 0; |
7203 | } | |
7204 | ||
7205 | static enum ofperr | |
7206 | handle_group_features_stats_request(struct ofconn *ofconn, | |
7207 | const struct ofp_header *request) | |
7208 | { | |
7209 | struct ofproto *p = ofconn_get_ofproto(ofconn); | |
7210 | struct ofpbuf *msg; | |
7211 | ||
7212 | msg = ofputil_encode_group_features_reply(&p->ogf, request); | |
7213 | if (msg) { | |
7214 | ofconn_send_reply(ofconn, msg); | |
7215 | } | |
7216 | ||
7217 | return 0; | |
7218 | } | |
7219 | ||
56085be5 | 7220 | static void |
e016fb63 BP |
7221 | put_queue_get_config_reply(struct ofport *port, uint32_t queue, |
7222 | struct ovs_list *replies) | |
e8f9a7bb | 7223 | { |
e016fb63 | 7224 | struct ofputil_queue_config qc; |
e8f9a7bb | 7225 | |
e016fb63 BP |
7226 | /* None of the existing queues have compatible properties, so we hard-code |
7227 | * omitting min_rate and max_rate. */ | |
7228 | qc.port = port->ofp_port; | |
7229 | qc.queue = queue; | |
7230 | qc.min_rate = UINT16_MAX; | |
7231 | qc.max_rate = UINT16_MAX; | |
7232 | ofputil_append_queue_get_config_reply(&qc, replies); | |
7233 | } | |
e8f9a7bb | 7234 | |
e016fb63 BP |
7235 | static int |
7236 | handle_queue_get_config_request_for_port(struct ofport *port, uint32_t queue, | |
7237 | struct ovs_list *replies) | |
7238 | { | |
7239 | struct smap details = SMAP_INITIALIZER(&details); | |
7240 | if (queue != OFPQ_ALL) { | |
7241 | int error = netdev_get_queue(port->netdev, queue, &details); | |
7242 | switch (error) { | |
7243 | case 0: | |
7244 | put_queue_get_config_reply(port, queue, replies); | |
7245 | break; | |
7246 | case EOPNOTSUPP: | |
7247 | case EINVAL: | |
7248 | return OFPERR_OFPQOFC_BAD_QUEUE; | |
7249 | default: | |
7250 | return OFPERR_NXQOFC_QUEUE_ERROR; | |
7251 | } | |
7252 | } else { | |
7253 | struct netdev_queue_dump queue_dump; | |
7254 | uint32_t queue_id; | |
7255 | ||
7256 | NETDEV_QUEUE_FOR_EACH (&queue_id, &details, &queue_dump, | |
7257 | port->netdev) { | |
7258 | put_queue_get_config_reply(port, queue_id, replies); | |
7259 | } | |
7260 | } | |
7261 | smap_destroy(&details); | |
7262 | return 0; | |
56085be5 BP |
7263 | } |
7264 | ||
7265 | static enum ofperr | |
7266 | handle_queue_get_config_request(struct ofconn *ofconn, | |
7267 | const struct ofp_header *oh) | |
7268 | { | |
e016fb63 BP |
7269 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
7270 | struct ovs_list replies; | |
7271 | struct ofport *port; | |
7272 | ofp_port_t req_port; | |
7273 | uint32_t req_queue; | |
7274 | enum ofperr error; | |
7275 | ||
7276 | error = ofputil_decode_queue_get_config_request(oh, &req_port, &req_queue); | |
7277 | if (error) { | |
7278 | return error; | |
7279 | } | |
7280 | ||
7281 | ofputil_start_queue_get_config_reply(oh, &replies); | |
7282 | if (req_port == OFPP_ANY) { | |
7283 | error = OFPERR_OFPQOFC_BAD_QUEUE; | |
7284 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { | |
7285 | if (!handle_queue_get_config_request_for_port(port, req_queue, | |
7286 | &replies)) { | |
7287 | error = 0; | |
7288 | } | |
7289 | } | |
7290 | } else { | |
7291 | port = ofproto_get_port(ofproto, req_port); | |
7292 | error = (port | |
7293 | ? handle_queue_get_config_request_for_port(port, req_queue, | |
7294 | &replies) | |
7295 | : OFPERR_OFPQOFC_BAD_PORT); | |
7296 | } | |
7297 | if (!error) { | |
7298 | ofconn_send_replies(ofconn, &replies); | |
7299 | } else { | |
7300 | ofpbuf_list_delete(&replies); | |
7301 | } | |
7302 | ||
7303 | return error; | |
e8f9a7bb VG |
7304 | } |
7305 | ||
836476ce BP |
7306 | /* Allocates, initializes, and constructs a new group in 'ofproto', obtaining |
7307 | * all the attributes for it from 'gm', and stores a pointer to it in | |
7308 | * '*ofgroup'. Makes the new group visible from the flow table starting from | |
7309 | * 'version'. | |
7310 | * | |
7311 | * Returns 0 if successful, otherwise an error code. If there is an error then | |
7312 | * '*ofgroup' is indeterminate upon return. */ | |
809c7548 | 7313 | static enum ofperr |
63eded98 | 7314 | init_group(struct ofproto *ofproto, const struct ofputil_group_mod *gm, |
5d08a275 | 7315 | ovs_version_t version, struct ofgroup **ofgroup) |
809c7548 RW |
7316 | { |
7317 | enum ofperr error; | |
eaf004bd | 7318 | const long long int now = time_msec(); |
809c7548 RW |
7319 | |
7320 | if (gm->group_id > OFPG_MAX) { | |
7321 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
7322 | } | |
7323 | if (gm->type > OFPGT11_FF) { | |
7324 | return OFPERR_OFPGMFC_BAD_TYPE; | |
7325 | } | |
7326 | ||
7327 | *ofgroup = ofproto->ofproto_class->group_alloc(); | |
7328 | if (!*ofgroup) { | |
7329 | VLOG_WARN_RL(&rl, "%s: failed to allocate group", ofproto->name); | |
7330 | return OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
7331 | } | |
7332 | ||
5d08a275 | 7333 | *CONST_CAST(struct ofproto **, &(*ofgroup)->ofproto) = ofproto; |
eaf004bd AZ |
7334 | *CONST_CAST(uint32_t *, &((*ofgroup)->group_id)) = gm->group_id; |
7335 | *CONST_CAST(enum ofp11_group_type *, &(*ofgroup)->type) = gm->type; | |
7336 | *CONST_CAST(long long int *, &((*ofgroup)->created)) = now; | |
7337 | *CONST_CAST(long long int *, &((*ofgroup)->modified)) = now; | |
809c7548 | 7338 | ovs_refcount_init(&(*ofgroup)->ref_count); |
cc099268 | 7339 | (*ofgroup)->being_deleted = false; |
809c7548 | 7340 | |
db88b35c JR |
7341 | ovs_list_init(CONST_CAST(struct ovs_list *, &(*ofgroup)->buckets)); |
7342 | ofputil_bucket_clone_list(CONST_CAST(struct ovs_list *, | |
7343 | &(*ofgroup)->buckets), | |
7344 | &gm->buckets, NULL); | |
63eded98 | 7345 | |
eaf004bd | 7346 | *CONST_CAST(uint32_t *, &(*ofgroup)->n_buckets) = |
417e7e66 | 7347 | ovs_list_size(&(*ofgroup)->buckets); |
809c7548 | 7348 | |
e8dba719 JR |
7349 | ofputil_group_properties_copy(CONST_CAST(struct ofputil_group_props *, |
7350 | &(*ofgroup)->props), | |
7351 | &gm->props); | |
cc099268 | 7352 | rule_collection_init(&(*ofgroup)->rules); |
bc65c25a | 7353 | |
5d08a275 JR |
7354 | /* Make group visible from 'version'. */ |
7355 | (*ofgroup)->versions = VERSIONS_INITIALIZER(version, | |
7356 | OVS_VERSION_NOT_REMOVED); | |
7357 | ||
809c7548 RW |
7358 | /* Construct called BEFORE any locks are held. */ |
7359 | error = ofproto->ofproto_class->group_construct(*ofgroup); | |
7360 | if (error) { | |
e8dba719 JR |
7361 | ofputil_group_properties_destroy(CONST_CAST(struct ofputil_group_props *, |
7362 | &(*ofgroup)->props)); | |
db88b35c JR |
7363 | ofputil_bucket_list_destroy(CONST_CAST(struct ovs_list *, |
7364 | &(*ofgroup)->buckets)); | |
809c7548 RW |
7365 | ofproto->ofproto_class->group_dealloc(*ofgroup); |
7366 | } | |
7367 | return error; | |
7368 | } | |
7369 | ||
6c5b90ce BP |
7370 | /* Implements the OFPGC11_ADD operation specified by 'gm', adding a group to |
7371 | * 'ofproto''s group table. Returns 0 on success or an OpenFlow error code on | |
7372 | * failure. */ | |
7395c052 | 7373 | static enum ofperr |
2b0b0b80 | 7374 | add_group_start(struct ofproto *ofproto, struct ofproto_group_mod *ogm) |
cc099268 | 7375 | OVS_REQUIRES(ofproto_mutex) |
7395c052 | 7376 | { |
7395c052 NZ |
7377 | enum ofperr error; |
7378 | ||
2b0b0b80 JR |
7379 | if (ofproto_group_exists(ofproto, ogm->gm.group_id)) { |
7380 | return OFPERR_OFPGMFC_GROUP_EXISTS; | |
7395c052 NZ |
7381 | } |
7382 | ||
2b0b0b80 JR |
7383 | if (ofproto->n_groups[ogm->gm.type] |
7384 | >= ofproto->ogf.max_groups[ogm->gm.type]) { | |
7385 | return OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
7395c052 NZ |
7386 | } |
7387 | ||
2b0b0b80 | 7388 | /* Allocate new group and initialize it. */ |
5d08a275 | 7389 | error = init_group(ofproto, &ogm->gm, ogm->version, &ogm->new_group); |
2b0b0b80 JR |
7390 | if (!error) { |
7391 | /* Insert new group. */ | |
7392 | cmap_insert(&ofproto->groups, &ogm->new_group->cmap_node, | |
7393 | hash_int(ogm->new_group->group_id, 0)); | |
7394 | ofproto->n_groups[ogm->new_group->type]++; | |
7395c052 | 7395 | } |
7395c052 NZ |
7396 | return error; |
7397 | } | |
7398 | ||
fce4730c SH |
7399 | /* Adds all of the buckets from 'ofgroup' to 'new_ofgroup'. The buckets |
7400 | * already in 'new_ofgroup' will be placed just after the (copy of the) bucket | |
7401 | * in 'ofgroup' with bucket ID 'command_bucket_id'. Special | |
7402 | * 'command_bucket_id' values OFPG15_BUCKET_FIRST and OFPG15_BUCKET_LAST are | |
7403 | * also honored. */ | |
7404 | static enum ofperr | |
7405 | copy_buckets_for_insert_bucket(const struct ofgroup *ofgroup, | |
7406 | struct ofgroup *new_ofgroup, | |
7407 | uint32_t command_bucket_id) | |
7408 | { | |
7409 | struct ofputil_bucket *last = NULL; | |
7410 | ||
7411 | if (command_bucket_id <= OFPG15_BUCKET_MAX) { | |
7412 | /* Check here to ensure that a bucket corresponding to | |
7413 | * command_bucket_id exists in the old bucket list. | |
7414 | * | |
7415 | * The subsequent search of below of new_ofgroup covers | |
7416 | * both buckets in the old bucket list and buckets added | |
7417 | * by the insert buckets group mod message this function processes. */ | |
7418 | if (!ofputil_bucket_find(&ofgroup->buckets, command_bucket_id)) { | |
7419 | return OFPERR_OFPGMFC_UNKNOWN_BUCKET; | |
7420 | } | |
7421 | ||
417e7e66 | 7422 | if (!ovs_list_is_empty(&new_ofgroup->buckets)) { |
fce4730c SH |
7423 | last = ofputil_bucket_list_back(&new_ofgroup->buckets); |
7424 | } | |
7425 | } | |
7426 | ||
db88b35c JR |
7427 | ofputil_bucket_clone_list(CONST_CAST(struct ovs_list *, |
7428 | &new_ofgroup->buckets), | |
7429 | &ofgroup->buckets, NULL); | |
fce4730c | 7430 | |
23a31238 | 7431 | if (ofputil_bucket_check_duplicate_id(&new_ofgroup->buckets)) { |
d2873d53 | 7432 | VLOG_INFO_RL(&rl, "Duplicate bucket id"); |
fce4730c SH |
7433 | return OFPERR_OFPGMFC_BUCKET_EXISTS; |
7434 | } | |
7435 | ||
7436 | /* Rearrange list according to command_bucket_id */ | |
7437 | if (command_bucket_id == OFPG15_BUCKET_LAST) { | |
417e7e66 | 7438 | if (!ovs_list_is_empty(&ofgroup->buckets)) { |
8e19e655 BP |
7439 | struct ofputil_bucket *new_first; |
7440 | const struct ofputil_bucket *first; | |
fce4730c | 7441 | |
8e19e655 BP |
7442 | first = ofputil_bucket_list_front(&ofgroup->buckets); |
7443 | new_first = ofputil_bucket_find(&new_ofgroup->buckets, | |
7444 | first->bucket_id); | |
fce4730c | 7445 | |
417e7e66 | 7446 | ovs_list_splice(new_ofgroup->buckets.next, &new_first->list_node, |
db88b35c JR |
7447 | CONST_CAST(struct ovs_list *, |
7448 | &new_ofgroup->buckets)); | |
8e19e655 | 7449 | } |
fce4730c SH |
7450 | } else if (command_bucket_id <= OFPG15_BUCKET_MAX && last) { |
7451 | struct ofputil_bucket *after; | |
7452 | ||
7453 | /* Presence of bucket is checked above so after should never be NULL */ | |
7454 | after = ofputil_bucket_find(&new_ofgroup->buckets, command_bucket_id); | |
7455 | ||
417e7e66 | 7456 | ovs_list_splice(after->list_node.next, new_ofgroup->buckets.next, |
fce4730c SH |
7457 | last->list_node.next); |
7458 | } | |
7459 | ||
7460 | return 0; | |
7461 | } | |
7462 | ||
7463 | /* Appends all of the a copy of all the buckets from 'ofgroup' to 'new_ofgroup' | |
7464 | * with the exception of the bucket whose bucket id is 'command_bucket_id'. | |
7465 | * Special 'command_bucket_id' values OFPG15_BUCKET_FIRST, OFPG15_BUCKET_LAST | |
7466 | * and OFPG15_BUCKET_ALL are also honored. */ | |
7467 | static enum ofperr | |
7468 | copy_buckets_for_remove_bucket(const struct ofgroup *ofgroup, | |
7469 | struct ofgroup *new_ofgroup, | |
7470 | uint32_t command_bucket_id) | |
7471 | { | |
7472 | const struct ofputil_bucket *skip = NULL; | |
7473 | ||
7474 | if (command_bucket_id == OFPG15_BUCKET_ALL) { | |
7475 | return 0; | |
7476 | } | |
7477 | ||
7478 | if (command_bucket_id == OFPG15_BUCKET_FIRST) { | |
417e7e66 | 7479 | if (!ovs_list_is_empty(&ofgroup->buckets)) { |
fce4730c SH |
7480 | skip = ofputil_bucket_list_front(&ofgroup->buckets); |
7481 | } | |
7482 | } else if (command_bucket_id == OFPG15_BUCKET_LAST) { | |
417e7e66 | 7483 | if (!ovs_list_is_empty(&ofgroup->buckets)) { |
fce4730c SH |
7484 | skip = ofputil_bucket_list_back(&ofgroup->buckets); |
7485 | } | |
7486 | } else { | |
7487 | skip = ofputil_bucket_find(&ofgroup->buckets, command_bucket_id); | |
7488 | if (!skip) { | |
7489 | return OFPERR_OFPGMFC_UNKNOWN_BUCKET; | |
7490 | } | |
7491 | } | |
7492 | ||
db88b35c JR |
7493 | ofputil_bucket_clone_list(CONST_CAST(struct ovs_list *, |
7494 | &new_ofgroup->buckets), | |
7495 | &ofgroup->buckets, skip); | |
fce4730c SH |
7496 | |
7497 | return 0; | |
7498 | } | |
7499 | ||
7500 | /* Implements OFPGC11_MODIFY, OFPGC15_INSERT_BUCKET and | |
7501 | * OFPGC15_REMOVE_BUCKET. Returns 0 on success or an OpenFlow error code | |
6c5b90ce | 7502 | * on failure. |
7395c052 | 7503 | * |
809c7548 RW |
7504 | * Note that the group is re-created and then replaces the old group in |
7505 | * ofproto's ofgroup hash map. Thus, the group is never altered while users of | |
6c5b90ce | 7506 | * the xlate module hold a pointer to the group. */ |
7395c052 | 7507 | static enum ofperr |
2b0b0b80 | 7508 | modify_group_start(struct ofproto *ofproto, struct ofproto_group_mod *ogm) |
cc099268 | 7509 | OVS_REQUIRES(ofproto_mutex) |
7395c052 | 7510 | { |
2b0b0b80 JR |
7511 | struct ofgroup *old_group; /* Modified group. */ |
7512 | struct ofgroup *new_group; | |
7395c052 NZ |
7513 | enum ofperr error; |
7514 | ||
5d08a275 JR |
7515 | old_group = ofproto_group_lookup__(ofproto, ogm->gm.group_id, |
7516 | OVS_VERSION_MAX); | |
2b0b0b80 JR |
7517 | if (!old_group) { |
7518 | return OFPERR_OFPGMFC_UNKNOWN_GROUP; | |
7395c052 NZ |
7519 | } |
7520 | ||
836476ce BP |
7521 | /* Inserting or deleting a bucket should not change the group's type or |
7522 | * properties, so change the group mod so that these aspects match the old | |
7523 | * group. (See EXT-570.) */ | |
7524 | if (ogm->gm.command == OFPGC15_INSERT_BUCKET || | |
7525 | ogm->gm.command == OFPGC15_REMOVE_BUCKET) { | |
7526 | ogm->gm.type = old_group->type; | |
7527 | ofputil_group_properties_destroy(&ogm->gm.props); | |
7528 | ofputil_group_properties_copy(&ogm->gm.props, &old_group->props); | |
7529 | } | |
7530 | ||
2b0b0b80 JR |
7531 | if (old_group->type != ogm->gm.type |
7532 | && (ofproto->n_groups[ogm->gm.type] | |
7533 | >= ofproto->ogf.max_groups[ogm->gm.type])) { | |
7534 | return OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
7395c052 | 7535 | } |
809c7548 | 7536 | |
5d08a275 | 7537 | error = init_group(ofproto, &ogm->gm, ogm->version, &ogm->new_group); |
2b0b0b80 JR |
7538 | if (error) { |
7539 | return error; | |
7395c052 | 7540 | } |
2b0b0b80 | 7541 | new_group = ogm->new_group; |
7395c052 | 7542 | |
fce4730c | 7543 | /* Manipulate bucket list for bucket commands */ |
2b0b0b80 JR |
7544 | if (ogm->gm.command == OFPGC15_INSERT_BUCKET) { |
7545 | error = copy_buckets_for_insert_bucket(old_group, new_group, | |
7546 | ogm->gm.command_bucket_id); | |
7547 | } else if (ogm->gm.command == OFPGC15_REMOVE_BUCKET) { | |
7548 | error = copy_buckets_for_remove_bucket(old_group, new_group, | |
7549 | ogm->gm.command_bucket_id); | |
fce4730c SH |
7550 | } |
7551 | if (error) { | |
7552 | goto out; | |
7553 | } | |
7554 | ||
809c7548 | 7555 | /* The group creation time does not change during modification. */ |
2b0b0b80 JR |
7556 | *CONST_CAST(long long int *, &(new_group->created)) = old_group->created; |
7557 | *CONST_CAST(long long int *, &(new_group->modified)) = time_msec(); | |
7395c052 | 7558 | |
304c8075 LW |
7559 | *CONST_CAST(uint32_t *, &(new_group->n_buckets)) = |
7560 | ovs_list_size(&(new_group->buckets)); | |
2b0b0b80 | 7561 | group_collection_add(&ogm->old_groups, old_group); |
db88b35c | 7562 | |
5d08a275 JR |
7563 | /* Mark the old group for deletion. */ |
7564 | versions_set_remove_version(&old_group->versions, ogm->version); | |
7565 | /* Insert replacement group. */ | |
7566 | cmap_insert(&ofproto->groups, &new_group->cmap_node, | |
7567 | hash_int(new_group->group_id, 0)); | |
cc099268 | 7568 | /* Transfer rules. */ |
2b0b0b80 | 7569 | rule_collection_move(&new_group->rules, &old_group->rules); |
db88b35c | 7570 | |
2b0b0b80 JR |
7571 | if (old_group->type != new_group->type) { |
7572 | ofproto->n_groups[old_group->type]--; | |
7573 | ofproto->n_groups[new_group->type]++; | |
7395c052 | 7574 | } |
2b0b0b80 | 7575 | return 0; |
7395c052 | 7576 | |
809c7548 | 7577 | out: |
2b0b0b80 | 7578 | ofproto_group_unref(new_group); |
7395c052 NZ |
7579 | return error; |
7580 | } | |
7581 | ||
88b87a36 JS |
7582 | /* Implements the OFPGC11_ADD_OR_MOD command which creates the group when it does not |
7583 | * exist yet and modifies it otherwise */ | |
7584 | static enum ofperr | |
2b0b0b80 JR |
7585 | add_or_modify_group_start(struct ofproto *ofproto, |
7586 | struct ofproto_group_mod *ogm) | |
cc099268 | 7587 | OVS_REQUIRES(ofproto_mutex) |
88b87a36 | 7588 | { |
88b87a36 | 7589 | enum ofperr error; |
88b87a36 | 7590 | |
2b0b0b80 JR |
7591 | if (!ofproto_group_exists(ofproto, ogm->gm.group_id)) { |
7592 | error = add_group_start(ofproto, ogm); | |
88b87a36 | 7593 | } else { |
2b0b0b80 | 7594 | error = modify_group_start(ofproto, ogm); |
88b87a36 | 7595 | } |
cc099268 | 7596 | |
88b87a36 JS |
7597 | return error; |
7598 | } | |
7599 | ||
7395c052 | 7600 | static void |
5d08a275 JR |
7601 | delete_group_start(struct ofproto *ofproto, ovs_version_t version, |
7602 | struct group_collection *groups, struct ofgroup *group) | |
cc099268 | 7603 | OVS_REQUIRES(ofproto_mutex) |
7395c052 | 7604 | { |
2b0b0b80 | 7605 | /* Makes flow deletion code leave the rule pointers in 'group->rules' |
cc099268 JR |
7606 | * intact, so that we can later refer to the rules deleted due to the group |
7607 | * deletion. Rule pointers will be removed from all other groups, if any, | |
7608 | * so we will never try to delete the same rule twice. */ | |
2b0b0b80 JR |
7609 | group->being_deleted = true; |
7610 | ||
7611 | /* Mark all the referring groups for deletion. */ | |
5d08a275 | 7612 | delete_flows_start__(ofproto, version, &group->rules); |
2b0b0b80 | 7613 | group_collection_add(groups, group); |
5d08a275 | 7614 | versions_set_remove_version(&group->versions, version); |
2b0b0b80 JR |
7615 | ofproto->n_groups[group->type]--; |
7616 | } | |
276f6518 | 7617 | |
2b0b0b80 JR |
7618 | static void |
7619 | delete_group_finish(struct ofproto *ofproto, struct ofgroup *group) | |
7620 | OVS_REQUIRES(ofproto_mutex) | |
7621 | { | |
7622 | /* Finish deletion of all flow entries containing this group in a group | |
7623 | * action. */ | |
7624 | delete_flows_finish__(ofproto, &group->rules, OFPRR_GROUP_DELETE, NULL); | |
276f6518 | 7625 | |
5d08a275 | 7626 | /* Group removal is postponed by the caller. */ |
7395c052 NZ |
7627 | } |
7628 | ||
6c5b90ce | 7629 | /* Implements OFPGC11_DELETE. */ |
7395c052 | 7630 | static void |
2b0b0b80 | 7631 | delete_groups_start(struct ofproto *ofproto, struct ofproto_group_mod *ogm) |
cc099268 | 7632 | OVS_REQUIRES(ofproto_mutex) |
7395c052 | 7633 | { |
2b0b0b80 | 7634 | struct ofgroup *group; |
7395c052 | 7635 | |
2b0b0b80 JR |
7636 | if (ogm->gm.group_id == OFPG_ALL) { |
7637 | CMAP_FOR_EACH (group, cmap_node, &ofproto->groups) { | |
5d08a275 JR |
7638 | if (versions_visible_in_version(&group->versions, ogm->version)) { |
7639 | delete_group_start(ofproto, ogm->version, &ogm->old_groups, | |
7640 | group); | |
7641 | } | |
7395c052 NZ |
7642 | } |
7643 | } else { | |
5d08a275 JR |
7644 | group = ofproto_group_lookup__(ofproto, ogm->gm.group_id, ogm->version); |
7645 | if (group) { | |
7646 | delete_group_start(ofproto, ogm->version, &ogm->old_groups, group); | |
7395c052 NZ |
7647 | } |
7648 | } | |
7395c052 NZ |
7649 | } |
7650 | ||
7651 | static enum ofperr | |
2b0b0b80 JR |
7652 | ofproto_group_mod_start(struct ofproto *ofproto, struct ofproto_group_mod *ogm) |
7653 | OVS_REQUIRES(ofproto_mutex) | |
7395c052 | 7654 | { |
7395c052 NZ |
7655 | enum ofperr error; |
7656 | ||
2b0b0b80 JR |
7657 | ogm->new_group = NULL; |
7658 | group_collection_init(&ogm->old_groups); | |
7395c052 | 7659 | |
2b0b0b80 | 7660 | switch (ogm->gm.command) { |
7395c052 | 7661 | case OFPGC11_ADD: |
2b0b0b80 | 7662 | error = add_group_start(ofproto, ogm); |
3c35db62 | 7663 | break; |
7395c052 NZ |
7664 | |
7665 | case OFPGC11_MODIFY: | |
2b0b0b80 | 7666 | error = modify_group_start(ofproto, ogm); |
3c35db62 | 7667 | break; |
7395c052 | 7668 | |
88b87a36 | 7669 | case OFPGC11_ADD_OR_MOD: |
2b0b0b80 | 7670 | error = add_or_modify_group_start(ofproto, ogm); |
88b87a36 JS |
7671 | break; |
7672 | ||
7395c052 | 7673 | case OFPGC11_DELETE: |
2b0b0b80 | 7674 | delete_groups_start(ofproto, ogm); |
3c35db62 NR |
7675 | error = 0; |
7676 | break; | |
7395c052 | 7677 | |
fce4730c | 7678 | case OFPGC15_INSERT_BUCKET: |
2b0b0b80 | 7679 | error = modify_group_start(ofproto, ogm); |
3c35db62 | 7680 | break; |
fce4730c SH |
7681 | |
7682 | case OFPGC15_REMOVE_BUCKET: | |
2b0b0b80 | 7683 | error = modify_group_start(ofproto, ogm); |
3c35db62 | 7684 | break; |
fce4730c | 7685 | |
7395c052 | 7686 | default: |
2b0b0b80 | 7687 | if (ogm->gm.command > OFPGC11_DELETE) { |
d2873d53 | 7688 | VLOG_INFO_RL(&rl, "%s: Invalid group_mod command type %d", |
2b0b0b80 | 7689 | ofproto->name, ogm->gm.command); |
7395c052 | 7690 | } |
63eded98 | 7691 | error = OFPERR_OFPGMFC_BAD_COMMAND; |
2b0b0b80 | 7692 | break; |
7395c052 | 7693 | } |
2b0b0b80 JR |
7694 | return error; |
7695 | } | |
3c35db62 | 7696 | |
25070e04 JR |
7697 | static void |
7698 | ofproto_group_mod_revert(struct ofproto *ofproto, | |
7699 | struct ofproto_group_mod *ogm) | |
7700 | OVS_REQUIRES(ofproto_mutex) | |
7701 | { | |
7702 | struct ofgroup *new_group = ogm->new_group; | |
7703 | struct ofgroup *old_group; | |
7704 | ||
7705 | /* Restore replaced or deleted groups. */ | |
7706 | GROUP_COLLECTION_FOR_EACH (old_group, &ogm->old_groups) { | |
7707 | ofproto->n_groups[old_group->type]++; | |
7708 | if (new_group) { | |
7709 | ovs_assert(group_collection_n(&ogm->old_groups) == 1); | |
7710 | /* Transfer rules back. */ | |
7711 | rule_collection_move(&old_group->rules, &new_group->rules); | |
7712 | } else { | |
7713 | old_group->being_deleted = false; | |
7714 | /* Revert rule deletion. */ | |
7715 | delete_flows_revert__(ofproto, &old_group->rules); | |
7716 | } | |
7717 | /* Restore visibility. */ | |
7718 | versions_set_remove_version(&old_group->versions, | |
7719 | OVS_VERSION_NOT_REMOVED); | |
7720 | } | |
7721 | if (new_group) { | |
7722 | /* Remove the new group immediately. It was never visible to | |
7723 | * lookups. */ | |
7724 | cmap_remove(&ofproto->groups, &new_group->cmap_node, | |
7725 | hash_int(new_group->group_id, 0)); | |
7726 | ofproto->n_groups[new_group->type]--; | |
7727 | ofproto_group_unref(new_group); | |
7728 | } | |
7729 | } | |
7730 | ||
2b0b0b80 JR |
7731 | static void |
7732 | ofproto_group_mod_finish(struct ofproto *ofproto, | |
7733 | struct ofproto_group_mod *ogm, | |
7734 | const struct openflow_mod_requester *req) | |
7735 | OVS_REQUIRES(ofproto_mutex) | |
7736 | { | |
7737 | struct ofgroup *new_group = ogm->new_group; | |
7738 | struct ofgroup *old_group; | |
7739 | ||
ccb3bc08 JR |
7740 | if (new_group && group_collection_n(&ogm->old_groups) && |
7741 | ofproto->ofproto_class->group_modify) { | |
2b0b0b80 JR |
7742 | /* Modify a group. */ |
7743 | ovs_assert(group_collection_n(&ogm->old_groups) == 1); | |
2b0b0b80 JR |
7744 | |
7745 | /* XXX: OK to lose old group's stats? */ | |
7746 | ofproto->ofproto_class->group_modify(new_group); | |
5d08a275 | 7747 | } |
2b0b0b80 | 7748 | |
5d08a275 JR |
7749 | /* Delete old groups. */ |
7750 | GROUP_COLLECTION_FOR_EACH(old_group, &ogm->old_groups) { | |
7751 | delete_group_finish(ofproto, old_group); | |
2b0b0b80 | 7752 | } |
5d08a275 | 7753 | remove_groups_postponed(&ogm->old_groups); |
2b0b0b80 JR |
7754 | |
7755 | if (req) { | |
d31ac3b3 BP |
7756 | struct ofputil_requestforward rf; |
7757 | rf.xid = req->request->xid; | |
7758 | rf.reason = OFPRFR_GROUP_MOD; | |
7759 | rf.group_mod = &ogm->gm; | |
7760 | rf.new_buckets = new_group ? &new_group->buckets : NULL; | |
7761 | rf.group_existed = group_collection_n(&ogm->old_groups) > 0; | |
2b0b0b80 JR |
7762 | connmgr_send_requestforward(ofproto->connmgr, req->ofconn, &rf); |
7763 | } | |
7764 | } | |
7765 | ||
7766 | /* Delete all groups from 'ofproto'. | |
7767 | * | |
7768 | * This is intended for use within an ofproto provider's 'destruct' | |
7769 | * function. */ | |
d3b84833 BP |
7770 | static void |
7771 | ofproto_group_delete_all__(struct ofproto *ofproto) | |
7772 | OVS_REQUIRES(ofproto_mutex) | |
2b0b0b80 JR |
7773 | { |
7774 | struct ofproto_group_mod ogm; | |
2b0b0b80 JR |
7775 | ogm.gm.command = OFPGC11_DELETE; |
7776 | ogm.gm.group_id = OFPG_ALL; | |
5d08a275 | 7777 | ogm.version = ofproto->tables_version + 1; |
d3b84833 | 7778 | |
2b0b0b80 | 7779 | ofproto_group_mod_start(ofproto, &ogm); |
5d08a275 | 7780 | ofproto_bump_tables_version(ofproto); |
2b0b0b80 | 7781 | ofproto_group_mod_finish(ofproto, &ogm, NULL); |
d3b84833 BP |
7782 | } |
7783 | ||
7784 | /* Delete all groups from 'ofproto'. | |
7785 | * | |
7786 | * This is intended for use within an ofproto provider's 'destruct' | |
7787 | * function. */ | |
7788 | void | |
7789 | ofproto_group_delete_all(struct ofproto *ofproto) | |
7790 | OVS_EXCLUDED(ofproto_mutex) | |
7791 | { | |
7792 | ovs_mutex_lock(&ofproto_mutex); | |
7793 | ofproto_group_delete_all__(ofproto); | |
2b0b0b80 JR |
7794 | ovs_mutex_unlock(&ofproto_mutex); |
7795 | } | |
7796 | ||
7797 | static enum ofperr | |
7798 | handle_group_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
7799 | OVS_EXCLUDED(ofproto_mutex) | |
7800 | { | |
7801 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
7802 | struct ofproto_group_mod ogm; | |
7803 | enum ofperr error; | |
7804 | ||
807152a4 | 7805 | error = reject_secondary_controller(ofconn); |
2b0b0b80 JR |
7806 | if (error) { |
7807 | return error; | |
7808 | } | |
7809 | ||
7810 | error = ofputil_decode_group_mod(oh, &ogm.gm); | |
7811 | if (error) { | |
7812 | return error; | |
3c35db62 | 7813 | } |
2b0b0b80 JR |
7814 | |
7815 | ovs_mutex_lock(&ofproto_mutex); | |
5d08a275 | 7816 | ogm.version = ofproto->tables_version + 1; |
2b0b0b80 JR |
7817 | error = ofproto_group_mod_start(ofproto, &ogm); |
7818 | if (!error) { | |
7819 | struct openflow_mod_requester req = { ofconn, oh }; | |
5d08a275 JR |
7820 | |
7821 | ofproto_bump_tables_version(ofproto); | |
2b0b0b80 | 7822 | ofproto_group_mod_finish(ofproto, &ogm, &req); |
2c7ee524 | 7823 | ofmonitor_flush(ofproto->connmgr); |
2b0b0b80 | 7824 | } |
2b0b0b80 JR |
7825 | ovs_mutex_unlock(&ofproto_mutex); |
7826 | ||
75868d0e | 7827 | ofputil_uninit_group_mod(&ogm.gm); |
63eded98 | 7828 | |
3c35db62 | 7829 | return error; |
7395c052 NZ |
7830 | } |
7831 | ||
3c1bb396 BP |
7832 | enum ofputil_table_miss |
7833 | ofproto_table_get_miss_config(const struct ofproto *ofproto, uint8_t table_id) | |
6d328fa2 | 7834 | { |
82c22d34 BP |
7835 | enum ofputil_table_miss miss; |
7836 | ||
7837 | atomic_read_relaxed(&ofproto->tables[table_id].miss_config, &miss); | |
7838 | return miss; | |
7839 | } | |
7840 | ||
7841 | static void | |
7842 | table_mod__(struct oftable *oftable, | |
de7d3c07 | 7843 | const struct ofputil_table_mod *tm) |
82c22d34 | 7844 | { |
de7d3c07 | 7845 | if (tm->miss == OFPUTIL_TABLE_MISS_DEFAULT) { |
82c22d34 BP |
7846 | /* This is how an OFPT_TABLE_MOD decodes if it doesn't specify any |
7847 | * table-miss configuration (because the protocol used doesn't have | |
7848 | * such a concept), so there's nothing to do. */ | |
7849 | } else { | |
de7d3c07 | 7850 | atomic_store_relaxed(&oftable->miss_config, tm->miss); |
82c22d34 BP |
7851 | } |
7852 | ||
7853 | unsigned int new_eviction = oftable->eviction; | |
de7d3c07 | 7854 | if (tm->eviction == OFPUTIL_TABLE_EVICTION_ON) { |
82c22d34 | 7855 | new_eviction |= EVICTION_OPENFLOW; |
de7d3c07 | 7856 | } else if (tm->eviction == OFPUTIL_TABLE_EVICTION_OFF) { |
82c22d34 BP |
7857 | new_eviction &= ~EVICTION_OPENFLOW; |
7858 | } | |
afcea9ea | 7859 | |
82c22d34 BP |
7860 | if (new_eviction != oftable->eviction) { |
7861 | ovs_mutex_lock(&ofproto_mutex); | |
7862 | oftable_configure_eviction(oftable, new_eviction, | |
7863 | oftable->eviction_fields, | |
7864 | oftable->n_eviction_fields); | |
7865 | ovs_mutex_unlock(&ofproto_mutex); | |
7866 | } | |
de7d3c07 SJ |
7867 | |
7868 | if (tm->vacancy != OFPUTIL_TABLE_VACANCY_DEFAULT) { | |
7869 | ovs_mutex_lock(&ofproto_mutex); | |
de7d3c07 SJ |
7870 | oftable->vacancy_down = tm->table_vacancy.vacancy_down; |
7871 | oftable->vacancy_up = tm->table_vacancy.vacancy_up; | |
6c6eedc5 SJ |
7872 | if (tm->vacancy == OFPUTIL_TABLE_VACANCY_OFF) { |
7873 | oftable->vacancy_event = 0; | |
7874 | } else if (!oftable->vacancy_event) { | |
7875 | uint8_t vacancy = oftable_vacancy(oftable); | |
7876 | oftable->vacancy_event = (vacancy < oftable->vacancy_up | |
7877 | ? OFPTR_VACANCY_UP | |
7878 | : OFPTR_VACANCY_DOWN); | |
7879 | } | |
de7d3c07 SJ |
7880 | ovs_mutex_unlock(&ofproto_mutex); |
7881 | } | |
6d328fa2 SH |
7882 | } |
7883 | ||
67761761 SH |
7884 | static enum ofperr |
7885 | table_mod(struct ofproto *ofproto, const struct ofputil_table_mod *tm) | |
7886 | { | |
3c1bb396 | 7887 | if (!check_table_id(ofproto, tm->table_id)) { |
67761761 | 7888 | return OFPERR_OFPTMFC_BAD_TABLE; |
82c22d34 BP |
7889 | } |
7890 | ||
7891 | /* Don't allow the eviction flags to be changed (except to the only fixed | |
7892 | * value that OVS supports). OF1.4 says this is normal: "The | |
7893 | * OFPTMPT_EVICTION property usually cannot be modified using a | |
7894 | * OFP_TABLE_MOD request, because the eviction mechanism is switch | |
7895 | * defined". */ | |
7896 | if (tm->eviction_flags != UINT32_MAX | |
7897 | && tm->eviction_flags != OFPROTO_EVICTION_FLAGS) { | |
7898 | return OFPERR_OFPTMFC_BAD_CONFIG; | |
7899 | } | |
7900 | ||
7901 | if (tm->table_id == OFPTT_ALL) { | |
7902 | struct oftable *oftable; | |
7903 | OFPROTO_FOR_EACH_TABLE (oftable, ofproto) { | |
7904 | if (!(oftable->flags & (OFTABLE_HIDDEN | OFTABLE_READONLY))) { | |
de7d3c07 | 7905 | table_mod__(oftable, tm); |
3c1bb396 | 7906 | } |
3c1bb396 | 7907 | } |
82c22d34 BP |
7908 | } else { |
7909 | struct oftable *oftable = &ofproto->tables[tm->table_id]; | |
7910 | if (oftable->flags & OFTABLE_READONLY) { | |
7911 | return OFPERR_OFPTMFC_EPERM; | |
7912 | } | |
de7d3c07 | 7913 | table_mod__(oftable, tm); |
67761761 | 7914 | } |
82c22d34 | 7915 | |
67761761 SH |
7916 | return 0; |
7917 | } | |
7918 | ||
918f2b82 AZ |
7919 | static enum ofperr |
7920 | handle_table_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
7921 | { | |
67761761 | 7922 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
918f2b82 AZ |
7923 | struct ofputil_table_mod tm; |
7924 | enum ofperr error; | |
7925 | ||
807152a4 | 7926 | error = reject_secondary_controller(ofconn); |
918f2b82 AZ |
7927 | if (error) { |
7928 | return error; | |
7929 | } | |
7930 | ||
7931 | error = ofputil_decode_table_mod(oh, &tm); | |
7932 | if (error) { | |
7933 | return error; | |
7934 | } | |
7935 | ||
67761761 | 7936 | return table_mod(ofproto, &tm); |
918f2b82 AZ |
7937 | } |
7938 | ||
5bacd5cd JR |
7939 | /* Free resources that may be allocated by ofproto_flow_mod_init(). */ |
7940 | void | |
7941 | ofproto_flow_mod_uninit(struct ofproto_flow_mod *ofm) | |
7942 | { | |
7943 | if (ofm->temp_rule) { | |
7944 | ofproto_rule_unref(ofm->temp_rule); | |
7945 | ofm->temp_rule = NULL; | |
7946 | } | |
7947 | if (ofm->criteria.version != OVS_VERSION_NOT_REMOVED) { | |
7948 | rule_criteria_destroy(&ofm->criteria); | |
7949 | } | |
7950 | if (ofm->conjs) { | |
7951 | free(ofm->conjs); | |
7952 | ofm->conjs = NULL; | |
7953 | ofm->n_conjs = 0; | |
7954 | } | |
7955 | } | |
7956 | ||
6399df6a BP |
7957 | /* Initializes 'ofm' with 'ofproto', 'fm', and 'rule'. 'rule' may be null, but |
7958 | * if it is nonnull then the caller must own a reference to it, which on | |
7959 | * success is transferred to 'ofm' and on failure is unreffed. */ | |
777af88d | 7960 | static enum ofperr |
5bacd5cd | 7961 | ofproto_flow_mod_init(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
2c7ee524 | 7962 | const struct ofputil_flow_mod *fm, struct rule *rule) |
5bacd5cd | 7963 | OVS_EXCLUDED(ofproto_mutex) |
777af88d | 7964 | { |
5bacd5cd JR |
7965 | enum ofperr error; |
7966 | ||
7967 | /* Forward flow mod fields we need later. */ | |
7968 | ofm->command = fm->command; | |
5bacd5cd JR |
7969 | ofm->modify_cookie = fm->modify_cookie; |
7970 | ||
7971 | ofm->modify_may_add_flow = (fm->new_cookie != OVS_BE64_MAX | |
7972 | && fm->cookie_mask == htonll(0)); | |
8b6987d7 JR |
7973 | /* Old flags must be kept when modifying a flow, but we still must |
7974 | * honor the reset counts flag if present in the flow mod. */ | |
7975 | ofm->modify_keep_counts = !(fm->flags & OFPUTIL_FF_RESET_COUNTS); | |
5bacd5cd JR |
7976 | |
7977 | /* Initialize state needed by ofproto_flow_mod_uninit(). */ | |
2c7ee524 | 7978 | ofm->temp_rule = rule; |
5bacd5cd JR |
7979 | ofm->criteria.version = OVS_VERSION_NOT_REMOVED; |
7980 | ofm->conjs = NULL; | |
7981 | ofm->n_conjs = 0; | |
7982 | ||
c184807c JR |
7983 | bool check_buffer_id = false; |
7984 | ||
5bacd5cd JR |
7985 | switch (ofm->command) { |
7986 | case OFPFC_ADD: | |
c184807c | 7987 | check_buffer_id = true; |
5bacd5cd JR |
7988 | error = add_flow_init(ofproto, ofm, fm); |
7989 | break; | |
7990 | case OFPFC_MODIFY: | |
c184807c | 7991 | check_buffer_id = true; |
5bacd5cd JR |
7992 | error = modify_flows_init_loose(ofproto, ofm, fm); |
7993 | break; | |
7994 | case OFPFC_MODIFY_STRICT: | |
c184807c | 7995 | check_buffer_id = true; |
5bacd5cd JR |
7996 | error = modify_flow_init_strict(ofproto, ofm, fm); |
7997 | break; | |
7998 | case OFPFC_DELETE: | |
7999 | error = delete_flows_init_loose(ofproto, ofm, fm); | |
8000 | break; | |
8001 | case OFPFC_DELETE_STRICT: | |
8002 | error = delete_flows_init_strict(ofproto, ofm, fm); | |
8003 | break; | |
8004 | default: | |
8005 | error = OFPERR_OFPFMFC_BAD_COMMAND; | |
8006 | break; | |
8007 | } | |
c184807c JR |
8008 | if (!error && check_buffer_id && fm->buffer_id != UINT32_MAX) { |
8009 | error = OFPERR_OFPBRC_BUFFER_UNKNOWN; | |
8010 | } | |
8011 | ||
cc099268 | 8012 | if (error) { |
5bacd5cd | 8013 | ofproto_flow_mod_uninit(ofm); |
cc099268 | 8014 | } |
5bacd5cd JR |
8015 | return error; |
8016 | } | |
cc099268 | 8017 | |
5bacd5cd JR |
8018 | static enum ofperr |
8019 | ofproto_flow_mod_start(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) | |
8020 | OVS_REQUIRES(ofproto_mutex) | |
8021 | { | |
8022 | enum ofperr error; | |
81dee635 | 8023 | |
5bacd5cd JR |
8024 | rule_collection_init(&ofm->old_rules); |
8025 | rule_collection_init(&ofm->new_rules); | |
81dee635 | 8026 | |
5a27991d | 8027 | switch (ofm->command) { |
1f42be1c | 8028 | case OFPFC_ADD: |
5bacd5cd JR |
8029 | error = add_flow_start(ofproto, ofm); |
8030 | break; | |
1f42be1c | 8031 | case OFPFC_MODIFY: |
5bacd5cd JR |
8032 | error = modify_flows_start_loose(ofproto, ofm); |
8033 | break; | |
1f42be1c | 8034 | case OFPFC_MODIFY_STRICT: |
5bacd5cd JR |
8035 | error = modify_flow_start_strict(ofproto, ofm); |
8036 | break; | |
1f42be1c | 8037 | case OFPFC_DELETE: |
5bacd5cd JR |
8038 | error = delete_flows_start_loose(ofproto, ofm); |
8039 | break; | |
1f42be1c | 8040 | case OFPFC_DELETE_STRICT: |
5bacd5cd JR |
8041 | error = delete_flow_start_strict(ofproto, ofm); |
8042 | break; | |
8043 | default: | |
8044 | OVS_NOT_REACHED(); | |
1f42be1c | 8045 | } |
5bacd5cd JR |
8046 | /* Release resources not needed after start. */ |
8047 | ofproto_flow_mod_uninit(ofm); | |
1f42be1c | 8048 | |
5bacd5cd JR |
8049 | if (error) { |
8050 | rule_collection_destroy(&ofm->old_rules); | |
8051 | rule_collection_destroy(&ofm->new_rules); | |
8052 | } | |
8053 | return error; | |
1f42be1c JR |
8054 | } |
8055 | ||
8056 | static void | |
8be00367 | 8057 | ofproto_flow_mod_revert(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
1f42be1c JR |
8058 | OVS_REQUIRES(ofproto_mutex) |
8059 | { | |
5a27991d | 8060 | switch (ofm->command) { |
1f42be1c | 8061 | case OFPFC_ADD: |
8be00367 | 8062 | add_flow_revert(ofproto, ofm); |
1f42be1c JR |
8063 | break; |
8064 | ||
8065 | case OFPFC_MODIFY: | |
8066 | case OFPFC_MODIFY_STRICT: | |
8be00367 | 8067 | modify_flows_revert(ofproto, ofm); |
1f42be1c JR |
8068 | break; |
8069 | ||
8070 | case OFPFC_DELETE: | |
8071 | case OFPFC_DELETE_STRICT: | |
8be00367 | 8072 | delete_flows_revert(ofproto, ofm); |
1f42be1c JR |
8073 | break; |
8074 | ||
8075 | default: | |
8076 | break; | |
8077 | } | |
2c7ee524 | 8078 | |
5bacd5cd JR |
8079 | rule_collection_destroy(&ofm->old_rules); |
8080 | rule_collection_destroy(&ofm->new_rules); | |
1f42be1c JR |
8081 | } |
8082 | ||
146ee626 | 8083 | static enum ofperr |
2c7ee524 | 8084 | ofproto_flow_mod_finish(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
0a0d9385 | 8085 | const struct openflow_mod_requester *req) |
1f42be1c JR |
8086 | OVS_REQUIRES(ofproto_mutex) |
8087 | { | |
146ee626 AP |
8088 | enum ofperr error = 0; |
8089 | ||
5a27991d | 8090 | switch (ofm->command) { |
1f42be1c | 8091 | case OFPFC_ADD: |
146ee626 | 8092 | error = add_flow_finish(ofproto, ofm, req); |
1f42be1c JR |
8093 | break; |
8094 | ||
8095 | case OFPFC_MODIFY: | |
8096 | case OFPFC_MODIFY_STRICT: | |
146ee626 | 8097 | error = modify_flows_finish(ofproto, ofm, req); |
1f42be1c JR |
8098 | break; |
8099 | ||
8100 | case OFPFC_DELETE: | |
8101 | case OFPFC_DELETE_STRICT: | |
8be00367 | 8102 | delete_flows_finish(ofproto, ofm, req); |
1f42be1c JR |
8103 | break; |
8104 | ||
8105 | default: | |
8106 | break; | |
8107 | } | |
b0d38b2f | 8108 | |
5bacd5cd JR |
8109 | rule_collection_destroy(&ofm->old_rules); |
8110 | rule_collection_destroy(&ofm->new_rules); | |
8111 | ||
b0d38b2f | 8112 | if (req) { |
5a27991d | 8113 | ofconn_report_flow_mod(req->ofconn, ofm->command); |
b0d38b2f | 8114 | } |
146ee626 AP |
8115 | |
8116 | return error; | |
1f42be1c JR |
8117 | } |
8118 | ||
39c94593 JR |
8119 | /* Commit phases (all while locking ofproto_mutex): |
8120 | * | |
8121 | * 1. Begin: Gather resources and make changes visible in the next version. | |
8122 | * - Mark affected rules for removal in the next version. | |
8123 | * - Create new replacement rules, make visible in the next | |
8124 | * version. | |
8125 | * - Do not send any events or notifications. | |
8126 | * | |
8127 | * 2. Revert: Fail if any errors are found. After this point no errors are | |
8128 | * possible. No visible changes were made, so rollback is minimal (remove | |
8129 | * added invisible rules, restore visibility of rules marked for removal). | |
8130 | * | |
1c38055d JR |
8131 | * 3. Finish: Make the changes visible for lookups. Insert replacement rules to |
8132 | * the ofproto provider. Remove replaced and deleted rules from ofproto data | |
8133 | * structures, and Schedule postponed removal of deleted rules from the | |
8134 | * classifier. Send notifications, buffered packets, etc. | |
39c94593 | 8135 | */ |
1f42be1c JR |
8136 | static enum ofperr |
8137 | do_bundle_commit(struct ofconn *ofconn, uint32_t id, uint16_t flags) | |
8138 | { | |
8139 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
44e0c35d | 8140 | ovs_version_t version = ofproto->tables_version + 1; |
1f42be1c JR |
8141 | struct ofp_bundle *bundle; |
8142 | struct ofp_bundle_entry *be; | |
777af88d | 8143 | enum ofperr error; |
1f42be1c JR |
8144 | |
8145 | bundle = ofconn_get_bundle(ofconn, id); | |
8146 | ||
8147 | if (!bundle) { | |
8148 | return OFPERR_OFPBFC_BAD_ID; | |
8149 | } | |
8150 | if (bundle->flags != flags) { | |
8151 | error = OFPERR_OFPBFC_BAD_FLAGS; | |
8152 | } else { | |
1c38055d JR |
8153 | bool prev_is_port_mod = false; |
8154 | ||
1f42be1c JR |
8155 | error = 0; |
8156 | ovs_mutex_lock(&ofproto_mutex); | |
39c94593 JR |
8157 | |
8158 | /* 1. Begin. */ | |
1f42be1c JR |
8159 | LIST_FOR_EACH (be, node, &bundle->msg_list) { |
8160 | if (be->type == OFPTYPE_PORT_MOD) { | |
1c38055d JR |
8161 | /* Our port mods are not atomic. */ |
8162 | if (flags & OFPBF_ATOMIC) { | |
8163 | error = OFPERR_OFPBFC_MSG_FAILED; | |
8164 | } else { | |
8165 | prev_is_port_mod = true; | |
8be00367 | 8166 | error = port_mod_start(ofconn, &be->opm.pm, &be->opm.port); |
1c38055d | 8167 | } |
25070e04 JR |
8168 | } else { |
8169 | /* Flow & group mods between port mods are applied as a single | |
8170 | * version, but the versions are published only after we know | |
8171 | * the commit is successful. */ | |
1c38055d | 8172 | if (prev_is_port_mod) { |
25070e04 | 8173 | prev_is_port_mod = false; |
8be00367 | 8174 | ++version; |
1c38055d | 8175 | } |
25070e04 JR |
8176 | if (be->type == OFPTYPE_FLOW_MOD) { |
8177 | /* Store the version in which the changes should take | |
8178 | * effect. */ | |
8179 | be->ofm.version = version; | |
8180 | error = ofproto_flow_mod_start(ofproto, &be->ofm); | |
8181 | } else if (be->type == OFPTYPE_GROUP_MOD) { | |
8182 | /* Store the version in which the changes should take | |
8183 | * effect. */ | |
8184 | be->ogm.version = version; | |
8185 | error = ofproto_group_mod_start(ofproto, &be->ogm); | |
6dd3c787 JR |
8186 | } else if (be->type == OFPTYPE_PACKET_OUT) { |
8187 | be->opo.version = version; | |
8188 | error = ofproto_packet_out_start(ofproto, &be->opo); | |
25070e04 JR |
8189 | } else { |
8190 | OVS_NOT_REACHED(); | |
8191 | } | |
1f42be1c JR |
8192 | } |
8193 | if (error) { | |
8194 | break; | |
8195 | } | |
8196 | } | |
1c38055d | 8197 | |
1f42be1c JR |
8198 | if (error) { |
8199 | /* Send error referring to the original message. */ | |
146ee626 AP |
8200 | ofconn_send_error(ofconn, be->msg, error); |
8201 | error = OFPERR_OFPBFC_MSG_FAILED; | |
8202 | ||
39c94593 | 8203 | /* 2. Revert. Undo all the changes made above. */ |
1f42be1c JR |
8204 | LIST_FOR_EACH_REVERSE_CONTINUE(be, node, &bundle->msg_list) { |
8205 | if (be->type == OFPTYPE_FLOW_MOD) { | |
8be00367 | 8206 | ofproto_flow_mod_revert(ofproto, &be->ofm); |
25070e04 JR |
8207 | } else if (be->type == OFPTYPE_GROUP_MOD) { |
8208 | ofproto_group_mod_revert(ofproto, &be->ogm); | |
6dd3c787 JR |
8209 | } else if (be->type == OFPTYPE_PACKET_OUT) { |
8210 | ofproto_packet_out_revert(ofproto, &be->opo); | |
1f42be1c | 8211 | } |
1c38055d | 8212 | /* Nothing needs to be reverted for a port mod. */ |
1f42be1c JR |
8213 | } |
8214 | } else { | |
39c94593 | 8215 | /* 4. Finish. */ |
1f42be1c | 8216 | LIST_FOR_EACH (be, node, &bundle->msg_list) { |
25070e04 | 8217 | if (be->type == OFPTYPE_PORT_MOD) { |
1c38055d JR |
8218 | /* Perform the actual port mod. This is not atomic, i.e., |
8219 | * the effects will be immediately seen by upcall | |
8220 | * processing regardless of the lookup version. It should | |
8221 | * be noted that port configuration changes can originate | |
8222 | * also from OVSDB changes asynchronously to all upcall | |
8223 | * processing. */ | |
8be00367 | 8224 | port_mod_finish(ofconn, &be->opm.pm, be->opm.port); |
25070e04 | 8225 | } else { |
6dd3c787 JR |
8226 | version = |
8227 | (be->type == OFPTYPE_FLOW_MOD) ? be->ofm.version : | |
8228 | (be->type == OFPTYPE_GROUP_MOD) ? be->ogm.version : | |
8229 | (be->type == OFPTYPE_PACKET_OUT) ? be->opo.version : | |
8230 | version; | |
8231 | ||
8232 | /* Bump the lookup version to the one of the current | |
8233 | * message. This makes all the changes in the bundle at | |
8234 | * this version visible to lookups at once. */ | |
8235 | if (ofproto->tables_version < version) { | |
8236 | ofproto->tables_version = version; | |
8237 | ofproto->ofproto_class->set_tables_version( | |
8238 | ofproto, ofproto->tables_version); | |
8239 | } | |
8240 | ||
52c57cbb | 8241 | struct openflow_mod_requester req = { ofconn, be->msg }; |
25070e04 | 8242 | |
6dd3c787 | 8243 | if (be->type == OFPTYPE_FLOW_MOD) { |
146ee626 AP |
8244 | error = ofproto_flow_mod_finish(ofproto, &be->ofm, |
8245 | &req); | |
25070e04 | 8246 | } else if (be->type == OFPTYPE_GROUP_MOD) { |
25070e04 | 8247 | ofproto_group_mod_finish(ofproto, &be->ogm, &req); |
6dd3c787 | 8248 | } else if (be->type == OFPTYPE_PACKET_OUT) { |
47f8743e | 8249 | ofproto_packet_out_prepare(ofproto, &be->opo); |
25070e04 | 8250 | } |
1f42be1c | 8251 | } |
146ee626 AP |
8252 | if (error) { |
8253 | break; | |
8254 | } | |
8255 | } | |
8256 | if (error) { | |
8257 | /* Send error referring to the original message. */ | |
8258 | ofconn_send_error(ofconn, be->msg, error); | |
8259 | error = OFPERR_OFPBFC_MSG_FAILED; | |
47f8743e | 8260 | |
146ee626 AP |
8261 | /* Revert. Undo all the changes made above. */ |
8262 | LIST_FOR_EACH_REVERSE_CONTINUE (be, node, &bundle->msg_list) { | |
8263 | if (be->type == OFPTYPE_FLOW_MOD) { | |
8264 | ofproto_flow_mod_revert(ofproto, &be->ofm); | |
8265 | } else if (be->type == OFPTYPE_GROUP_MOD) { | |
8266 | ofproto_group_mod_revert(ofproto, &be->ogm); | |
8267 | } else if (be->type == OFPTYPE_PACKET_OUT) { | |
8268 | ofproto_packet_out_revert(ofproto, &be->opo); | |
8269 | } | |
8270 | /* Nothing needs to be reverted for a port mod. */ | |
8271 | } | |
1f42be1c JR |
8272 | } |
8273 | } | |
1c38055d | 8274 | |
1f42be1c JR |
8275 | ofmonitor_flush(ofproto->connmgr); |
8276 | ovs_mutex_unlock(&ofproto_mutex); | |
1f42be1c JR |
8277 | } |
8278 | ||
47f8743e IM |
8279 | /* Executing remaining datapath actions. */ |
8280 | LIST_FOR_EACH (be, node, &bundle->msg_list) { | |
8281 | if (be->type == OFPTYPE_PACKET_OUT) { | |
8282 | ofproto_packet_out_finish(ofproto, &be->opo); | |
8283 | } | |
8284 | } | |
8285 | ||
1f42be1c | 8286 | /* The bundle is discarded regardless the outcome. */ |
0c78eebe | 8287 | ofp_bundle_remove__(ofconn, bundle); |
1f42be1c JR |
8288 | return error; |
8289 | } | |
8290 | ||
8291 | static enum ofperr | |
8292 | handle_bundle_control(struct ofconn *ofconn, const struct ofp_header *oh) | |
8293 | { | |
777af88d | 8294 | struct ofputil_bundle_ctrl_msg bctrl; |
777af88d | 8295 | struct ofputil_bundle_ctrl_msg reply; |
1f42be1c JR |
8296 | struct ofpbuf *buf; |
8297 | enum ofperr error; | |
777af88d | 8298 | |
807152a4 | 8299 | error = reject_secondary_controller(ofconn); |
ba9d374a JR |
8300 | if (error) { |
8301 | return error; | |
8302 | } | |
8303 | ||
777af88d AC |
8304 | error = ofputil_decode_bundle_ctrl(oh, &bctrl); |
8305 | if (error) { | |
8306 | return error; | |
8307 | } | |
8308 | reply.flags = 0; | |
8309 | reply.bundle_id = bctrl.bundle_id; | |
8310 | ||
8311 | switch (bctrl.type) { | |
51bb26fa JR |
8312 | case OFPBCT_OPEN_REQUEST: |
8313 | error = ofp_bundle_open(ofconn, bctrl.bundle_id, bctrl.flags, oh); | |
777af88d AC |
8314 | reply.type = OFPBCT_OPEN_REPLY; |
8315 | break; | |
8316 | case OFPBCT_CLOSE_REQUEST: | |
8317 | error = ofp_bundle_close(ofconn, bctrl.bundle_id, bctrl.flags); | |
ea53e3a8 | 8318 | reply.type = OFPBCT_CLOSE_REPLY; |
777af88d AC |
8319 | break; |
8320 | case OFPBCT_COMMIT_REQUEST: | |
1f42be1c | 8321 | error = do_bundle_commit(ofconn, bctrl.bundle_id, bctrl.flags); |
777af88d AC |
8322 | reply.type = OFPBCT_COMMIT_REPLY; |
8323 | break; | |
8324 | case OFPBCT_DISCARD_REQUEST: | |
8325 | error = ofp_bundle_discard(ofconn, bctrl.bundle_id); | |
8326 | reply.type = OFPBCT_DISCARD_REPLY; | |
8327 | break; | |
8328 | ||
8329 | case OFPBCT_OPEN_REPLY: | |
8330 | case OFPBCT_CLOSE_REPLY: | |
8331 | case OFPBCT_COMMIT_REPLY: | |
8332 | case OFPBCT_DISCARD_REPLY: | |
8333 | return OFPERR_OFPBFC_BAD_TYPE; | |
8334 | break; | |
8335 | } | |
8336 | ||
8337 | if (!error) { | |
8338 | buf = ofputil_encode_bundle_ctrl_reply(oh, &reply); | |
8339 | ofconn_send_reply(ofconn, buf); | |
8340 | } | |
8341 | return error; | |
8342 | } | |
8343 | ||
777af88d AC |
8344 | static enum ofperr |
8345 | handle_bundle_add(struct ofconn *ofconn, const struct ofp_header *oh) | |
5bacd5cd | 8346 | OVS_EXCLUDED(ofproto_mutex) |
777af88d | 8347 | { |
7ac27a04 | 8348 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
777af88d AC |
8349 | enum ofperr error; |
8350 | struct ofputil_bundle_add_msg badd; | |
7ac27a04 | 8351 | enum ofptype type; |
777af88d | 8352 | |
807152a4 | 8353 | error = reject_secondary_controller(ofconn); |
ba9d374a JR |
8354 | if (error) { |
8355 | return error; | |
8356 | } | |
8357 | ||
7ac27a04 | 8358 | error = ofputil_decode_bundle_add(oh, &badd, &type); |
777af88d AC |
8359 | if (error) { |
8360 | return error; | |
8361 | } | |
8362 | ||
d0485f48 AT |
8363 | /* Allocate bundle entry and decode the embedded message. */ |
8364 | struct ofp_bundle_entry *bmsg = xmalloc(sizeof *bmsg); | |
7ac27a04 | 8365 | |
6dd3c787 JR |
8366 | struct ofpbuf ofpacts; |
8367 | uint64_t ofpacts_stub[1024 / 8]; | |
8368 | ofpbuf_use_stub(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); | |
8369 | ||
7ac27a04 | 8370 | if (type == OFPTYPE_PORT_MOD) { |
8be00367 | 8371 | error = ofputil_decode_port_mod(badd.msg, &bmsg->opm.pm, false); |
7ac27a04 | 8372 | } else if (type == OFPTYPE_FLOW_MOD) { |
5bacd5cd | 8373 | struct ofputil_flow_mod fm; |
7ac27a04 | 8374 | |
5bacd5cd | 8375 | error = ofputil_decode_flow_mod(&fm, badd.msg, |
7ac27a04 | 8376 | ofconn_get_protocol(ofconn), |
8d8ab6c2 | 8377 | ofproto_get_tun_tab(ofproto), |
04f48a68 | 8378 | &ofproto->vl_mff_map, &ofpacts, |
7ac27a04 JR |
8379 | u16_to_ofp(ofproto->max_ports), |
8380 | ofproto->n_tables); | |
5bacd5cd | 8381 | if (!error) { |
2c7ee524 | 8382 | error = ofproto_flow_mod_init(ofproto, &bmsg->ofm, &fm, NULL); |
6a6b7060 | 8383 | minimatch_destroy(&fm.match); |
5bacd5cd | 8384 | } |
25070e04 JR |
8385 | } else if (type == OFPTYPE_GROUP_MOD) { |
8386 | error = ofputil_decode_group_mod(badd.msg, &bmsg->ogm.gm); | |
6dd3c787 JR |
8387 | } else if (type == OFPTYPE_PACKET_OUT) { |
8388 | struct ofputil_packet_out po; | |
8389 | ||
8390 | COVERAGE_INC(ofproto_packet_out); | |
8391 | ||
8392 | /* Decode message. */ | |
89d7927b YHW |
8393 | error = ofputil_decode_packet_out(&po, badd.msg, |
8394 | ofproto_get_tun_tab(ofproto), | |
8395 | &ofpacts); | |
6dd3c787 JR |
8396 | if (!error) { |
8397 | po.ofpacts = ofpbuf_steal_data(&ofpacts); /* Move to heap. */ | |
8398 | error = ofproto_packet_out_init(ofproto, ofconn, &bmsg->opo, &po); | |
8399 | } | |
7ac27a04 JR |
8400 | } else { |
8401 | OVS_NOT_REACHED(); | |
8402 | } | |
6dd3c787 | 8403 | ofpbuf_uninit(&ofpacts); |
d0485f48 AT |
8404 | if (error) { |
8405 | free(bmsg); | |
8406 | return error; | |
7ac27a04 JR |
8407 | } |
8408 | ||
d0485f48 AT |
8409 | /* Now that the embedded message has been successfully decoded, finish up |
8410 | * initializing the bundle entry. */ | |
8411 | bmsg->type = type; | |
8412 | bmsg->msg = xmemdup(oh, ntohs(oh->length)); | |
8413 | ||
8414 | /* Add bundle entry to bundle. */ | |
8415 | error = ofp_bundle_add_message(ofconn, badd.bundle_id, badd.flags, | |
8416 | bmsg, oh); | |
7ac27a04 JR |
8417 | if (error) { |
8418 | ofp_bundle_entry_free(bmsg); | |
8419 | } | |
7ac27a04 | 8420 | return error; |
777af88d AC |
8421 | } |
8422 | ||
6159c531 | 8423 | static enum ofperr |
4e548ad9 | 8424 | handle_tlv_table_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
6159c531 | 8425 | { |
8d8ab6c2 JG |
8426 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
8427 | struct tun_table *old_tab, *new_tab; | |
4e548ad9 | 8428 | struct ofputil_tlv_table_mod ttm; |
6159c531 JG |
8429 | enum ofperr error; |
8430 | ||
807152a4 | 8431 | error = reject_secondary_controller(ofconn); |
6159c531 JG |
8432 | if (error) { |
8433 | return error; | |
8434 | } | |
8435 | ||
4e548ad9 | 8436 | error = ofputil_decode_tlv_table_mod(oh, &ttm); |
6159c531 JG |
8437 | if (error) { |
8438 | return error; | |
8439 | } | |
8440 | ||
8d8ab6c2 JG |
8441 | old_tab = ovsrcu_get_protected(struct tun_table *, &ofproto->metadata_tab); |
8442 | error = tun_metadata_table_mod(&ttm, old_tab, &new_tab); | |
8443 | if (!error) { | |
04f48a68 YHW |
8444 | ovs_mutex_lock(&ofproto->vl_mff_map.mutex); |
8445 | error = mf_vl_mff_map_mod_from_tun_metadata(&ofproto->vl_mff_map, | |
8446 | &ttm); | |
8447 | ovs_mutex_unlock(&ofproto->vl_mff_map.mutex); | |
5c7c16d8 YHW |
8448 | if (!error) { |
8449 | ovsrcu_set(&ofproto->metadata_tab, new_tab); | |
8450 | tun_metadata_postpone_free(old_tab); | |
bc36c3a8 YHW |
8451 | } else { |
8452 | tun_metadata_free(new_tab); | |
5c7c16d8 | 8453 | } |
8d8ab6c2 | 8454 | } |
9558d2a5 | 8455 | |
4e548ad9 | 8456 | ofputil_uninit_tlv_table(&ttm.mappings); |
9558d2a5 | 8457 | return error; |
6159c531 JG |
8458 | } |
8459 | ||
8460 | static enum ofperr | |
4e548ad9 | 8461 | handle_tlv_table_request(struct ofconn *ofconn, const struct ofp_header *oh) |
6159c531 | 8462 | { |
8d8ab6c2 | 8463 | const struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
4e548ad9 | 8464 | struct ofputil_tlv_table_reply ttr; |
9558d2a5 JG |
8465 | struct ofpbuf *b; |
8466 | ||
8d8ab6c2 JG |
8467 | tun_metadata_table_request(ofproto_get_tun_tab(ofproto), &ttr); |
8468 | ||
4e548ad9 ML |
8469 | b = ofputil_encode_tlv_table_reply(oh, &ttr); |
8470 | ofputil_uninit_tlv_table(&ttr.mappings); | |
9558d2a5 JG |
8471 | |
8472 | ofconn_send_reply(ofconn, b); | |
8473 | return 0; | |
6159c531 JG |
8474 | } |
8475 | ||
fd4b7a0e BP |
8476 | /* Processes the single-part OpenFlow message 'oh' that was received on |
8477 | * 'ofconn'. Returns an ofperr that, if nonzero, the caller should send back | |
8478 | * to the controller. */ | |
90bf1e07 | 8479 | static enum ofperr |
fd4b7a0e BP |
8480 | handle_single_part_openflow(struct ofconn *ofconn, const struct ofp_header *oh, |
8481 | enum ofptype type) | |
15aaf599 | 8482 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 8483 | { |
982697a4 | 8484 | switch (type) { |
d1e2cf21 | 8485 | /* OpenFlow requests. */ |
982697a4 | 8486 | case OFPTYPE_ECHO_REQUEST: |
d1e2cf21 | 8487 | return handle_echo_request(ofconn, oh); |
064af421 | 8488 | |
982697a4 | 8489 | case OFPTYPE_FEATURES_REQUEST: |
d1e2cf21 | 8490 | return handle_features_request(ofconn, oh); |
064af421 | 8491 | |
982697a4 | 8492 | case OFPTYPE_GET_CONFIG_REQUEST: |
d1e2cf21 | 8493 | return handle_get_config_request(ofconn, oh); |
064af421 | 8494 | |
982697a4 BP |
8495 | case OFPTYPE_SET_CONFIG: |
8496 | return handle_set_config(ofconn, oh); | |
064af421 | 8497 | |
982697a4 BP |
8498 | case OFPTYPE_PACKET_OUT: |
8499 | return handle_packet_out(ofconn, oh); | |
064af421 | 8500 | |
982697a4 | 8501 | case OFPTYPE_PORT_MOD: |
d1e2cf21 | 8502 | return handle_port_mod(ofconn, oh); |
064af421 | 8503 | |
982697a4 | 8504 | case OFPTYPE_FLOW_MOD: |
2e4f5fcf | 8505 | return handle_flow_mod(ofconn, oh); |
064af421 | 8506 | |
7395c052 NZ |
8507 | case OFPTYPE_GROUP_MOD: |
8508 | return handle_group_mod(ofconn, oh); | |
8509 | ||
918f2b82 AZ |
8510 | case OFPTYPE_TABLE_MOD: |
8511 | return handle_table_mod(ofconn, oh); | |
8512 | ||
9cae45dc JR |
8513 | case OFPTYPE_METER_MOD: |
8514 | return handle_meter_mod(ofconn, oh); | |
8515 | ||
982697a4 | 8516 | case OFPTYPE_BARRIER_REQUEST: |
d1e2cf21 | 8517 | return handle_barrier_request(ofconn, oh); |
064af421 | 8518 | |
6ea4776b JR |
8519 | case OFPTYPE_ROLE_REQUEST: |
8520 | return handle_role_request(ofconn, oh); | |
8521 | ||
d1e2cf21 | 8522 | /* OpenFlow replies. */ |
982697a4 | 8523 | case OFPTYPE_ECHO_REPLY: |
d1e2cf21 | 8524 | return 0; |
246e61ea | 8525 | |
d1e2cf21 | 8526 | /* Nicira extension requests. */ |
982697a4 | 8527 | case OFPTYPE_FLOW_MOD_TABLE_ID: |
6c1491fb | 8528 | return handle_nxt_flow_mod_table_id(ofconn, oh); |
d1e2cf21 | 8529 | |
982697a4 | 8530 | case OFPTYPE_SET_FLOW_FORMAT: |
d1e2cf21 BP |
8531 | return handle_nxt_set_flow_format(ofconn, oh); |
8532 | ||
982697a4 | 8533 | case OFPTYPE_SET_PACKET_IN_FORMAT: |
54834960 EJ |
8534 | return handle_nxt_set_packet_in_format(ofconn, oh); |
8535 | ||
982697a4 | 8536 | case OFPTYPE_SET_CONTROLLER_ID: |
a7349929 BP |
8537 | return handle_nxt_set_controller_id(ofconn, oh); |
8538 | ||
982697a4 | 8539 | case OFPTYPE_FLOW_AGE: |
f27f2134 BP |
8540 | /* Nothing to do. */ |
8541 | return 0; | |
8542 | ||
982697a4 | 8543 | case OFPTYPE_FLOW_MONITOR_CANCEL: |
2b07c8b1 BP |
8544 | return handle_flow_monitor_cancel(ofconn, oh); |
8545 | ||
982697a4 | 8546 | case OFPTYPE_SET_ASYNC_CONFIG: |
80d5aefd BP |
8547 | return handle_nxt_set_async_config(ofconn, oh); |
8548 | ||
c423b3b3 AC |
8549 | case OFPTYPE_GET_ASYNC_REQUEST: |
8550 | return handle_nxt_get_async_request(ofconn, oh); | |
8551 | ||
77ab5fd2 BP |
8552 | case OFPTYPE_NXT_RESUME: |
8553 | return handle_nxt_resume(ofconn, oh); | |
8554 | ||
349adfb2 | 8555 | /* Statistics requests. */ |
982697a4 BP |
8556 | case OFPTYPE_DESC_STATS_REQUEST: |
8557 | return handle_desc_stats_request(ofconn, oh); | |
8558 | ||
8559 | case OFPTYPE_FLOW_STATS_REQUEST: | |
8560 | return handle_flow_stats_request(ofconn, oh); | |
8561 | ||
8562 | case OFPTYPE_AGGREGATE_STATS_REQUEST: | |
8563 | return handle_aggregate_stats_request(ofconn, oh); | |
8564 | ||
8565 | case OFPTYPE_TABLE_STATS_REQUEST: | |
8566 | return handle_table_stats_request(ofconn, oh); | |
8567 | ||
03c72922 BP |
8568 | case OFPTYPE_TABLE_DESC_REQUEST: |
8569 | return handle_table_desc_request(ofconn, oh); | |
8570 | ||
982697a4 BP |
8571 | case OFPTYPE_PORT_STATS_REQUEST: |
8572 | return handle_port_stats_request(ofconn, oh); | |
8573 | ||
8574 | case OFPTYPE_QUEUE_STATS_REQUEST: | |
8575 | return handle_queue_stats_request(ofconn, oh); | |
8576 | ||
8577 | case OFPTYPE_PORT_DESC_STATS_REQUEST: | |
8578 | return handle_port_desc_stats_request(ofconn, oh); | |
8579 | ||
af3c51ae | 8580 | case OFPTYPE_TABLE_FEATURES_STATS_REQUEST: |
982697a4 | 8581 | case OFPTYPE_FLOW_MONITOR_STATS_REQUEST: |
af3c51ae BP |
8582 | /* Handled as multipart requests in handle_openflow(). */ |
8583 | OVS_NOT_REACHED(); | |
982697a4 | 8584 | |
261bd854 BP |
8585 | case OFPTYPE_METER_STATS_REQUEST: |
8586 | case OFPTYPE_METER_CONFIG_STATS_REQUEST: | |
9cae45dc JR |
8587 | return handle_meter_request(ofconn, oh, type); |
8588 | ||
261bd854 | 8589 | case OFPTYPE_METER_FEATURES_STATS_REQUEST: |
9cae45dc JR |
8590 | return handle_meter_features_request(ofconn, oh); |
8591 | ||
261bd854 | 8592 | case OFPTYPE_GROUP_STATS_REQUEST: |
7395c052 NZ |
8593 | return handle_group_stats_request(ofconn, oh); |
8594 | ||
261bd854 | 8595 | case OFPTYPE_GROUP_DESC_STATS_REQUEST: |
7395c052 NZ |
8596 | return handle_group_desc_stats_request(ofconn, oh); |
8597 | ||
261bd854 | 8598 | case OFPTYPE_GROUP_FEATURES_STATS_REQUEST: |
7395c052 NZ |
8599 | return handle_group_features_stats_request(ofconn, oh); |
8600 | ||
7395c052 | 8601 | case OFPTYPE_QUEUE_GET_CONFIG_REQUEST: |
e8f9a7bb | 8602 | return handle_queue_get_config_request(ofconn, oh); |
2e1ae200 | 8603 | |
777af88d AC |
8604 | case OFPTYPE_BUNDLE_CONTROL: |
8605 | return handle_bundle_control(ofconn, oh); | |
8606 | ||
8607 | case OFPTYPE_BUNDLE_ADD_MESSAGE: | |
8608 | return handle_bundle_add(ofconn, oh); | |
8609 | ||
4e548ad9 ML |
8610 | case OFPTYPE_NXT_TLV_TABLE_MOD: |
8611 | return handle_tlv_table_mod(ofconn, oh); | |
6159c531 | 8612 | |
4e548ad9 ML |
8613 | case OFPTYPE_NXT_TLV_TABLE_REQUEST: |
8614 | return handle_tlv_table_request(ofconn, oh); | |
6159c531 | 8615 | |
fb8f22c1 BY |
8616 | case OFPTYPE_IPFIX_BRIDGE_STATS_REQUEST: |
8617 | return handle_ipfix_bridge_stats_request(ofconn, oh); | |
8618 | ||
8619 | case OFPTYPE_IPFIX_FLOW_STATS_REQUEST: | |
8620 | return handle_ipfix_flow_stats_request(ofconn, oh); | |
8621 | ||
2a7c4805 JP |
8622 | case OFPTYPE_CT_FLUSH_ZONE: |
8623 | return handle_nxt_ct_flush_zone(ofconn, oh); | |
8624 | ||
982697a4 BP |
8625 | case OFPTYPE_HELLO: |
8626 | case OFPTYPE_ERROR: | |
8627 | case OFPTYPE_FEATURES_REPLY: | |
8628 | case OFPTYPE_GET_CONFIG_REPLY: | |
8629 | case OFPTYPE_PACKET_IN: | |
8630 | case OFPTYPE_FLOW_REMOVED: | |
8631 | case OFPTYPE_PORT_STATUS: | |
8632 | case OFPTYPE_BARRIER_REPLY: | |
c545d38d | 8633 | case OFPTYPE_QUEUE_GET_CONFIG_REPLY: |
982697a4 BP |
8634 | case OFPTYPE_DESC_STATS_REPLY: |
8635 | case OFPTYPE_FLOW_STATS_REPLY: | |
8636 | case OFPTYPE_QUEUE_STATS_REPLY: | |
8637 | case OFPTYPE_PORT_STATS_REPLY: | |
8638 | case OFPTYPE_TABLE_STATS_REPLY: | |
8639 | case OFPTYPE_AGGREGATE_STATS_REPLY: | |
8640 | case OFPTYPE_PORT_DESC_STATS_REPLY: | |
8641 | case OFPTYPE_ROLE_REPLY: | |
8642 | case OFPTYPE_FLOW_MONITOR_PAUSED: | |
8643 | case OFPTYPE_FLOW_MONITOR_RESUMED: | |
8644 | case OFPTYPE_FLOW_MONITOR_STATS_REPLY: | |
2e1ae200 | 8645 | case OFPTYPE_GET_ASYNC_REPLY: |
261bd854 BP |
8646 | case OFPTYPE_GROUP_STATS_REPLY: |
8647 | case OFPTYPE_GROUP_DESC_STATS_REPLY: | |
8648 | case OFPTYPE_GROUP_FEATURES_STATS_REPLY: | |
8649 | case OFPTYPE_METER_STATS_REPLY: | |
8650 | case OFPTYPE_METER_CONFIG_STATS_REPLY: | |
8651 | case OFPTYPE_METER_FEATURES_STATS_REPLY: | |
8652 | case OFPTYPE_TABLE_FEATURES_STATS_REPLY: | |
03c72922 | 8653 | case OFPTYPE_TABLE_DESC_REPLY: |
252f3411 | 8654 | case OFPTYPE_ROLE_STATUS: |
3c35db62 | 8655 | case OFPTYPE_REQUESTFORWARD: |
6c6eedc5 | 8656 | case OFPTYPE_TABLE_STATUS: |
4e548ad9 | 8657 | case OFPTYPE_NXT_TLV_TABLE_REPLY: |
fb8f22c1 BY |
8658 | case OFPTYPE_IPFIX_BRIDGE_STATS_REPLY: |
8659 | case OFPTYPE_IPFIX_FLOW_STATS_REPLY: | |
064af421 | 8660 | default: |
76ec08e0 YT |
8661 | if (ofpmsg_is_stat_request(oh)) { |
8662 | return OFPERR_OFPBRC_BAD_STAT; | |
8663 | } else { | |
8664 | return OFPERR_OFPBRC_BAD_TYPE; | |
8665 | } | |
064af421 | 8666 | } |
d1e2cf21 | 8667 | } |
064af421 | 8668 | |
b20f4073 | 8669 | static void |
fd4b7a0e | 8670 | handle_openflow(struct ofconn *ofconn, const struct ovs_list *msgs) |
15aaf599 | 8671 | OVS_EXCLUDED(ofproto_mutex) |
d1e2cf21 | 8672 | { |
fd4b7a0e | 8673 | COVERAGE_INC(ofproto_recv_openflow); |
d51c8b71 | 8674 | |
fd4b7a0e BP |
8675 | struct ofpbuf *msg = ofpbuf_from_list(ovs_list_front(msgs)); |
8676 | enum ofptype type; | |
8677 | enum ofperr error = ofptype_decode(&type, msg->data); | |
8678 | if (!error) { | |
4e413ac8 BP |
8679 | if (type == OFPTYPE_TABLE_FEATURES_STATS_REQUEST) { |
8680 | handle_table_features_request(ofconn, msgs); | |
af3c51ae BP |
8681 | } else if (type == OFPTYPE_FLOW_MONITOR_STATS_REQUEST) { |
8682 | handle_flow_monitor_request(ofconn, msgs); | |
4e413ac8 | 8683 | } else if (!ovs_list_is_short(msgs)) { |
fd4b7a0e BP |
8684 | error = OFPERR_OFPBRC_BAD_STAT; |
8685 | } else { | |
8686 | error = handle_single_part_openflow(ofconn, msg->data, type); | |
8687 | } | |
8688 | } | |
b20f4073 | 8689 | if (error) { |
fd4b7a0e | 8690 | ofconn_send_error(ofconn, msg->data, error); |
064af421 | 8691 | } |
7ee20df1 BP |
8692 | } |
8693 | \f | |
064af421 | 8694 | static uint64_t |
fa60c019 | 8695 | pick_datapath_id(const struct ofproto *ofproto) |
064af421 | 8696 | { |
fa60c019 | 8697 | const struct ofport *port; |
064af421 | 8698 | |
abe529af | 8699 | port = ofproto_get_port(ofproto, OFPP_LOCAL); |
fa60c019 | 8700 | if (port) { |
74ff3298 | 8701 | struct eth_addr ea; |
fa60c019 BP |
8702 | int error; |
8703 | ||
74ff3298 | 8704 | error = netdev_get_etheraddr(port->netdev, &ea); |
064af421 BP |
8705 | if (!error) { |
8706 | return eth_addr_to_uint64(ea); | |
8707 | } | |
fbfa2911 BP |
8708 | VLOG_WARN("%s: could not get MAC address for %s (%s)", |
8709 | ofproto->name, netdev_get_name(port->netdev), | |
10a89ef0 | 8710 | ovs_strerror(error)); |
064af421 | 8711 | } |
fa60c019 | 8712 | return ofproto->fallback_dpid; |
064af421 BP |
8713 | } |
8714 | ||
8715 | static uint64_t | |
8716 | pick_fallback_dpid(void) | |
8717 | { | |
74ff3298 JR |
8718 | struct eth_addr ea; |
8719 | eth_addr_nicira_random(&ea); | |
064af421 BP |
8720 | return eth_addr_to_uint64(ea); |
8721 | } | |
8722 | \f | |
254750ce BP |
8723 | /* Table overflow policy. */ |
8724 | ||
ad3efdcb EJ |
8725 | /* Chooses and updates 'rulep' with a rule to evict from 'table'. Sets 'rulep' |
8726 | * to NULL if the table is not configured to evict rules or if the table | |
8727 | * contains no evictable rules. (Rules with a readlock on their evict rwlock, | |
8728 | * or with no timeouts are not evictable.) */ | |
8729 | static bool | |
8730 | choose_rule_to_evict(struct oftable *table, struct rule **rulep) | |
15aaf599 | 8731 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
8732 | { |
8733 | struct eviction_group *evg; | |
8734 | ||
ad3efdcb | 8735 | *rulep = NULL; |
82c22d34 | 8736 | if (!table->eviction) { |
ad3efdcb | 8737 | return false; |
254750ce BP |
8738 | } |
8739 | ||
8740 | /* In the common case, the outer and inner loops here will each be entered | |
8741 | * exactly once: | |
8742 | * | |
8743 | * - The inner loop normally "return"s in its first iteration. If the | |
8744 | * eviction group has any evictable rules, then it always returns in | |
8745 | * some iteration. | |
8746 | * | |
8747 | * - The outer loop only iterates more than once if the largest eviction | |
8748 | * group has no evictable rules. | |
8749 | * | |
8750 | * - The outer loop can exit only if table's 'max_flows' is all filled up | |
afe2143d | 8751 | * by unevictable rules. */ |
254750ce BP |
8752 | HEAP_FOR_EACH (evg, size_node, &table->eviction_groups_by_size) { |
8753 | struct rule *rule; | |
8754 | ||
8755 | HEAP_FOR_EACH (rule, evg_node, &evg->rules) { | |
15aaf599 BP |
8756 | *rulep = rule; |
8757 | return true; | |
254750ce BP |
8758 | } |
8759 | } | |
8760 | ||
ad3efdcb | 8761 | return false; |
254750ce | 8762 | } |
254750ce BP |
8763 | \f |
8764 | /* Eviction groups. */ | |
8765 | ||
8766 | /* Returns the priority to use for an eviction_group that contains 'n_rules' | |
8767 | * rules. The priority contains low-order random bits to ensure that eviction | |
8768 | * groups with the same number of rules are prioritized randomly. */ | |
8769 | static uint32_t | |
8770 | eviction_group_priority(size_t n_rules) | |
8771 | { | |
8772 | uint16_t size = MIN(UINT16_MAX, n_rules); | |
8773 | return (size << 16) | random_uint16(); | |
8774 | } | |
8775 | ||
8776 | /* Updates 'evg', an eviction_group within 'table', following a change that | |
8777 | * adds or removes rules in 'evg'. */ | |
8778 | static void | |
8779 | eviction_group_resized(struct oftable *table, struct eviction_group *evg) | |
15aaf599 | 8780 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
8781 | { |
8782 | heap_change(&table->eviction_groups_by_size, &evg->size_node, | |
8783 | eviction_group_priority(heap_count(&evg->rules))); | |
8784 | } | |
8785 | ||
8786 | /* Destroys 'evg', an eviction_group within 'table': | |
8787 | * | |
8788 | * - Removes all the rules, if any, from 'evg'. (It doesn't destroy the | |
8789 | * rules themselves, just removes them from the eviction group.) | |
8790 | * | |
8791 | * - Removes 'evg' from 'table'. | |
8792 | * | |
8793 | * - Frees 'evg'. */ | |
8794 | static void | |
8795 | eviction_group_destroy(struct oftable *table, struct eviction_group *evg) | |
15aaf599 | 8796 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
8797 | { |
8798 | while (!heap_is_empty(&evg->rules)) { | |
8799 | struct rule *rule; | |
8800 | ||
8801 | rule = CONTAINER_OF(heap_pop(&evg->rules), struct rule, evg_node); | |
8802 | rule->eviction_group = NULL; | |
8803 | } | |
8804 | hmap_remove(&table->eviction_groups_by_id, &evg->id_node); | |
8805 | heap_remove(&table->eviction_groups_by_size, &evg->size_node); | |
8806 | heap_destroy(&evg->rules); | |
8807 | free(evg); | |
8808 | } | |
8809 | ||
8810 | /* Removes 'rule' from its eviction group, if any. */ | |
8811 | static void | |
8812 | eviction_group_remove_rule(struct rule *rule) | |
15aaf599 | 8813 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
8814 | { |
8815 | if (rule->eviction_group) { | |
8816 | struct oftable *table = &rule->ofproto->tables[rule->table_id]; | |
8817 | struct eviction_group *evg = rule->eviction_group; | |
8818 | ||
8819 | rule->eviction_group = NULL; | |
8820 | heap_remove(&evg->rules, &rule->evg_node); | |
8821 | if (heap_is_empty(&evg->rules)) { | |
8822 | eviction_group_destroy(table, evg); | |
8823 | } else { | |
8824 | eviction_group_resized(table, evg); | |
8825 | } | |
8826 | } | |
8827 | } | |
8828 | ||
8829 | /* Hashes the 'rule''s values for the eviction_fields of 'rule''s table, and | |
8830 | * returns the hash value. */ | |
8831 | static uint32_t | |
8832 | eviction_group_hash_rule(struct rule *rule) | |
15aaf599 | 8833 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
8834 | { |
8835 | struct oftable *table = &rule->ofproto->tables[rule->table_id]; | |
8836 | const struct mf_subfield *sf; | |
5cb7a798 | 8837 | struct flow flow; |
254750ce BP |
8838 | uint32_t hash; |
8839 | ||
8840 | hash = table->eviction_group_id_basis; | |
8fd47924 | 8841 | miniflow_expand(rule->cr.match.flow, &flow); |
254750ce BP |
8842 | for (sf = table->eviction_fields; |
8843 | sf < &table->eviction_fields[table->n_eviction_fields]; | |
8844 | sf++) | |
8845 | { | |
aff49b8c | 8846 | if (mf_are_prereqs_ok(sf->field, &flow, NULL)) { |
254750ce BP |
8847 | union mf_value value; |
8848 | ||
5cb7a798 | 8849 | mf_get_value(sf->field, &flow, &value); |
254750ce BP |
8850 | if (sf->ofs) { |
8851 | bitwise_zero(&value, sf->field->n_bytes, 0, sf->ofs); | |
8852 | } | |
8853 | if (sf->ofs + sf->n_bits < sf->field->n_bytes * 8) { | |
8854 | unsigned int start = sf->ofs + sf->n_bits; | |
8855 | bitwise_zero(&value, sf->field->n_bytes, start, | |
8856 | sf->field->n_bytes * 8 - start); | |
8857 | } | |
8858 | hash = hash_bytes(&value, sf->field->n_bytes, hash); | |
8859 | } else { | |
8860 | hash = hash_int(hash, 0); | |
8861 | } | |
8862 | } | |
8863 | ||
8864 | return hash; | |
8865 | } | |
8866 | ||
8867 | /* Returns an eviction group within 'table' with the given 'id', creating one | |
8868 | * if necessary. */ | |
8869 | static struct eviction_group * | |
8870 | eviction_group_find(struct oftable *table, uint32_t id) | |
15aaf599 | 8871 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
8872 | { |
8873 | struct eviction_group *evg; | |
8874 | ||
8875 | HMAP_FOR_EACH_WITH_HASH (evg, id_node, id, &table->eviction_groups_by_id) { | |
8876 | return evg; | |
8877 | } | |
8878 | ||
8879 | evg = xmalloc(sizeof *evg); | |
8880 | hmap_insert(&table->eviction_groups_by_id, &evg->id_node, id); | |
8881 | heap_insert(&table->eviction_groups_by_size, &evg->size_node, | |
8882 | eviction_group_priority(0)); | |
8883 | heap_init(&evg->rules); | |
8884 | ||
8885 | return evg; | |
8886 | } | |
8887 | ||
8888 | /* Returns an eviction priority for 'rule'. The return value should be | |
f70b94de BP |
8889 | * interpreted so that higher priorities make a rule a more attractive |
8890 | * candidate for eviction. */ | |
8891 | static uint64_t | |
dc437090 | 8892 | rule_eviction_priority(struct ofproto *ofproto, struct rule *rule) |
15aaf599 | 8893 | OVS_REQUIRES(ofproto_mutex) |
254750ce | 8894 | { |
f70b94de BP |
8895 | /* Calculate absolute time when this flow will expire. If it will never |
8896 | * expire, then return 0 to make it unevictable. */ | |
dc437090 | 8897 | long long int expiration = LLONG_MAX; |
dc437090 | 8898 | if (rule->hard_timeout) { |
f70b94de BP |
8899 | /* 'modified' needs protection even when we hold 'ofproto_mutex'. */ |
8900 | ovs_mutex_lock(&rule->mutex); | |
8901 | long long int modified = rule->modified; | |
8902 | ovs_mutex_unlock(&rule->mutex); | |
8903 | ||
dc437090 JR |
8904 | expiration = modified + rule->hard_timeout * 1000; |
8905 | } | |
8906 | if (rule->idle_timeout) { | |
16441315 | 8907 | struct pkt_stats stats; |
dc437090 JR |
8908 | long long int used; |
8909 | long long int idle_expiration; | |
8910 | ||
16441315 | 8911 | ofproto->ofproto_class->rule_get_stats(rule, &stats, &used); |
dc437090 JR |
8912 | idle_expiration = used + rule->idle_timeout * 1000; |
8913 | expiration = MIN(expiration, idle_expiration); | |
8914 | } | |
254750ce BP |
8915 | if (expiration == LLONG_MAX) { |
8916 | return 0; | |
8917 | } | |
8918 | ||
8919 | /* Calculate the time of expiration as a number of (approximate) seconds | |
8920 | * after program startup. | |
8921 | * | |
8922 | * This should work OK for program runs that last UINT32_MAX seconds or | |
8923 | * less. Therefore, please restart OVS at least once every 136 years. */ | |
f70b94de | 8924 | uint32_t expiration_ofs = (expiration >> 10) - (time_boot_msec() >> 10); |
254750ce | 8925 | |
f70b94de BP |
8926 | /* Combine expiration time with OpenFlow "importance" to form a single |
8927 | * priority value. We want flows with relatively low "importance" to be | |
8928 | * evicted before even considering expiration time, so put "importance" in | |
8929 | * the most significant bits and expiration time in the least significant | |
8930 | * bits. | |
8931 | * | |
8932 | * Small 'priority' should be evicted before those with large 'priority'. | |
8933 | * The caller expects the opposite convention (a large return value being | |
8934 | * more attractive for eviction) so we invert it before returning. */ | |
8935 | uint64_t priority = ((uint64_t) rule->importance << 32) + expiration_ofs; | |
8936 | return UINT64_MAX - priority; | |
254750ce BP |
8937 | } |
8938 | ||
8939 | /* Adds 'rule' to an appropriate eviction group for its oftable's | |
8940 | * configuration. Does nothing if 'rule''s oftable doesn't have eviction | |
8941 | * enabled, or if 'rule' is a permanent rule (one that will never expire on its | |
8942 | * own). | |
8943 | * | |
8944 | * The caller must ensure that 'rule' is not already in an eviction group. */ | |
8945 | static void | |
8946 | eviction_group_add_rule(struct rule *rule) | |
15aaf599 | 8947 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
8948 | { |
8949 | struct ofproto *ofproto = rule->ofproto; | |
8950 | struct oftable *table = &ofproto->tables[rule->table_id]; | |
a3779dbc | 8951 | bool has_timeout; |
254750ce | 8952 | |
dc437090 JR |
8953 | /* Timeouts may be modified only when holding 'ofproto_mutex'. We have it |
8954 | * so no additional protection is needed. */ | |
a3779dbc | 8955 | has_timeout = rule->hard_timeout || rule->idle_timeout; |
a3779dbc | 8956 | |
82c22d34 | 8957 | if (table->eviction && has_timeout) { |
254750ce BP |
8958 | struct eviction_group *evg; |
8959 | ||
8960 | evg = eviction_group_find(table, eviction_group_hash_rule(rule)); | |
8961 | ||
8962 | rule->eviction_group = evg; | |
8963 | heap_insert(&evg->rules, &rule->evg_node, | |
dc437090 | 8964 | rule_eviction_priority(ofproto, rule)); |
254750ce BP |
8965 | eviction_group_resized(table, evg); |
8966 | } | |
8967 | } | |
8968 | \f | |
d0918789 BP |
8969 | /* oftables. */ |
8970 | ||
8971 | /* Initializes 'table'. */ | |
8972 | static void | |
8973 | oftable_init(struct oftable *table) | |
8974 | { | |
5c67e4af | 8975 | memset(table, 0, sizeof *table); |
d70e8c28 | 8976 | classifier_init(&table->cls, flow_segment_u64s); |
ec1c5c7e | 8977 | table->max_flows = UINT_MAX; |
d79e3d70 | 8978 | table->n_flows = 0; |
82c22d34 BP |
8979 | hmap_init(&table->eviction_groups_by_id); |
8980 | heap_init(&table->eviction_groups_by_size); | |
3c1bb396 | 8981 | atomic_init(&table->miss_config, OFPUTIL_TABLE_MISS_DEFAULT); |
f017d986 | 8982 | |
f017d986 JR |
8983 | classifier_set_prefix_fields(&table->cls, default_prefix_fields, |
8984 | ARRAY_SIZE(default_prefix_fields)); | |
d611866c SH |
8985 | |
8986 | atomic_init(&table->n_matched, 0); | |
8987 | atomic_init(&table->n_missed, 0); | |
d0918789 BP |
8988 | } |
8989 | ||
254750ce | 8990 | /* Destroys 'table', including its classifier and eviction groups. |
d0918789 BP |
8991 | * |
8992 | * The caller is responsible for freeing 'table' itself. */ | |
8993 | static void | |
8994 | oftable_destroy(struct oftable *table) | |
8995 | { | |
cb22974d | 8996 | ovs_assert(classifier_is_empty(&table->cls)); |
82c22d34 | 8997 | |
7394b8fb | 8998 | ovs_mutex_lock(&ofproto_mutex); |
82c22d34 | 8999 | oftable_configure_eviction(table, 0, NULL, 0); |
7394b8fb | 9000 | ovs_mutex_unlock(&ofproto_mutex); |
82c22d34 BP |
9001 | |
9002 | hmap_destroy(&table->eviction_groups_by_id); | |
9003 | heap_destroy(&table->eviction_groups_by_size); | |
d0918789 | 9004 | classifier_destroy(&table->cls); |
254750ce BP |
9005 | free(table->name); |
9006 | } | |
9007 | ||
4e413ac8 BP |
9008 | /* Changes the name of 'table' to 'name'. Null or empty string 'name' unsets |
9009 | * the name. | |
9010 | * | |
9011 | * 'level' should be 1 if the name is being set via OpenFlow, or 2 if the name | |
9012 | * is being set via OVSDB. Higher levels get precedence. | |
254750ce BP |
9013 | * |
9014 | * This only affects the name exposed for a table exposed through the OpenFlow | |
9015 | * OFPST_TABLE (as printed by "ovs-ofctl dump-tables"). */ | |
9016 | static void | |
4e413ac8 BP |
9017 | oftable_set_name(struct oftable *table, const char *name, int level) |
9018 | { | |
9019 | int len = name ? strnlen(name, OFP_MAX_TABLE_NAME_LEN) : 0; | |
9020 | if (level >= table->name_level) { | |
9021 | if (name) { | |
9022 | if (name[0]) { | |
9023 | if (!table->name || strncmp(name, table->name, len)) { | |
9024 | free(table->name); | |
9025 | table->name = xmemdup0(name, len); | |
9026 | } | |
9027 | } else { | |
9028 | free(table->name); | |
9029 | table->name = NULL; | |
9030 | } | |
9031 | table->name_level = level; | |
9032 | } else if (table->name_level == level) { | |
254750ce | 9033 | free(table->name); |
4e413ac8 BP |
9034 | table->name = NULL; |
9035 | table->name_level = 0; | |
254750ce | 9036 | } |
254750ce BP |
9037 | } |
9038 | } | |
9039 | ||
4e413ac8 BP |
9040 | /* Returns true if oftable_set_name(table, name, level) would be effective, |
9041 | * false otherwise. */ | |
9042 | static bool | |
9043 | oftable_may_set_name(const struct oftable *table, const char *name, int level) | |
9044 | { | |
9045 | return (level >= table->name_level | |
9046 | || !name | |
9047 | || !table->name | |
9048 | || !strncmp(name, table->name, | |
9049 | strnlen(name, OFP_MAX_TABLE_NAME_LEN))); | |
9050 | } | |
9051 | ||
254750ce BP |
9052 | /* oftables support a choice of two policies when adding a rule would cause the |
9053 | * number of flows in the table to exceed the configured maximum number: either | |
9054 | * they can refuse to add the new flow or they can evict some existing flow. | |
9055 | * This function configures the latter policy on 'table', with fairness based | |
9056 | * on the values of the 'n_fields' fields specified in 'fields'. (Specifying | |
9057 | * 'n_fields' as 0 disables fairness.) */ | |
9058 | static void | |
82c22d34 BP |
9059 | oftable_configure_eviction(struct oftable *table, unsigned int eviction, |
9060 | const struct mf_subfield *fields, size_t n_fields) | |
15aaf599 | 9061 | OVS_REQUIRES(ofproto_mutex) |
254750ce | 9062 | { |
254750ce BP |
9063 | struct rule *rule; |
9064 | ||
82c22d34 | 9065 | if ((table->eviction != 0) == (eviction != 0) |
254750ce BP |
9066 | && n_fields == table->n_eviction_fields |
9067 | && (!n_fields | |
9068 | || !memcmp(fields, table->eviction_fields, | |
9069 | n_fields * sizeof *fields))) { | |
82c22d34 BP |
9070 | /* The set of eviction fields did not change. If 'eviction' changed, |
9071 | * it remains nonzero, so that we can just update table->eviction | |
9072 | * without fussing with the eviction groups. */ | |
9073 | table->eviction = eviction; | |
254750ce BP |
9074 | return; |
9075 | } | |
9076 | ||
82c22d34 BP |
9077 | /* Destroy existing eviction groups, then destroy and recreate data |
9078 | * structures to recover memory. */ | |
9079 | struct eviction_group *evg, *next; | |
9080 | HMAP_FOR_EACH_SAFE (evg, next, id_node, &table->eviction_groups_by_id) { | |
9081 | eviction_group_destroy(table, evg); | |
9082 | } | |
9083 | hmap_destroy(&table->eviction_groups_by_id); | |
254750ce | 9084 | hmap_init(&table->eviction_groups_by_id); |
82c22d34 | 9085 | heap_destroy(&table->eviction_groups_by_size); |
254750ce BP |
9086 | heap_init(&table->eviction_groups_by_size); |
9087 | ||
82c22d34 BP |
9088 | /* Replace eviction groups by the new ones, if there is a change. Free the |
9089 | * old fields only after allocating the new ones, because 'fields == | |
9090 | * table->eviction_fields' is possible. */ | |
9091 | struct mf_subfield *old_fields = table->eviction_fields; | |
9092 | table->n_eviction_fields = n_fields; | |
9093 | table->eviction_fields = (fields | |
9094 | ? xmemdup(fields, n_fields * sizeof *fields) | |
9095 | : NULL); | |
9096 | free(old_fields); | |
9097 | ||
9098 | /* Add the new eviction groups, if enabled. */ | |
9099 | table->eviction = eviction; | |
9100 | if (table->eviction) { | |
9101 | table->eviction_group_id_basis = random_uint32(); | |
9102 | CLS_FOR_EACH (rule, cr, &table->cls) { | |
9103 | eviction_group_add_rule(rule); | |
9104 | } | |
254750ce | 9105 | } |
d0918789 BP |
9106 | } |
9107 | ||
bc5e6a91 JR |
9108 | /* Inserts 'rule' from the ofproto data structures BEFORE caller has inserted |
9109 | * it to the classifier. */ | |
9110 | static void | |
9111 | ofproto_rule_insert__(struct ofproto *ofproto, struct rule *rule) | |
9112 | OVS_REQUIRES(ofproto_mutex) | |
9113 | { | |
9114 | const struct rule_actions *actions = rule_get_actions(rule); | |
9115 | ||
30d0452c | 9116 | /* A rule may not be reinserted. */ |
9a0ac025 | 9117 | ovs_assert(rule->state != RULE_INSERTED); |
39c94593 | 9118 | |
bc5e6a91 | 9119 | if (rule->hard_timeout || rule->idle_timeout) { |
417e7e66 | 9120 | ovs_list_insert(&ofproto->expirable, &rule->expirable); |
bc5e6a91 JR |
9121 | } |
9122 | cookies_insert(ofproto, rule); | |
9123 | eviction_group_add_rule(rule); | |
9124 | if (actions->has_meter) { | |
9125 | meter_insert_rule(rule); | |
9126 | } | |
cc099268 JR |
9127 | if (actions->has_groups) { |
9128 | const struct ofpact_group *a; | |
9129 | OFPACT_FOR_EACH_TYPE_FLATTENED (a, GROUP, actions->ofpacts, | |
9130 | actions->ofpacts_len) { | |
9131 | struct ofgroup *group; | |
9132 | ||
5d08a275 JR |
9133 | group = ofproto_group_lookup(ofproto, a->group_id, OVS_VERSION_MAX, |
9134 | false); | |
cc099268 JR |
9135 | ovs_assert(group != NULL); |
9136 | group_add_rule(group, rule); | |
9137 | } | |
9138 | } | |
9139 | ||
30d0452c | 9140 | rule->state = RULE_INSERTED; |
bc5e6a91 JR |
9141 | } |
9142 | ||
6787a49f JR |
9143 | /* Removes 'rule' from the ofproto data structures. Caller may have deferred |
9144 | * the removal from the classifier. */ | |
d0918789 | 9145 | static void |
802f84ff | 9146 | ofproto_rule_remove__(struct ofproto *ofproto, struct rule *rule) |
15aaf599 | 9147 | OVS_REQUIRES(ofproto_mutex) |
d0918789 | 9148 | { |
30d0452c | 9149 | ovs_assert(rule->state == RULE_INSERTED); |
39c94593 | 9150 | |
98eaac36 | 9151 | cookies_remove(ofproto, rule); |
2c916028 | 9152 | |
254750ce | 9153 | eviction_group_remove_rule(rule); |
417e7e66 BW |
9154 | if (!ovs_list_is_empty(&rule->expirable)) { |
9155 | ovs_list_remove(&rule->expirable); | |
e503cc19 | 9156 | } |
417e7e66 BW |
9157 | if (!ovs_list_is_empty(&rule->meter_list_node)) { |
9158 | ovs_list_remove(&rule->meter_list_node); | |
9159 | ovs_list_init(&rule->meter_list_node); | |
9cae45dc | 9160 | } |
802f84ff | 9161 | |
cc099268 JR |
9162 | /* Remove the rule from any groups, except from the group that is being |
9163 | * deleted, if any. */ | |
9164 | const struct rule_actions *actions = rule_get_actions(rule); | |
9165 | ||
9166 | if (actions->has_groups) { | |
9167 | const struct ofpact_group *a; | |
9168 | ||
8483173b | 9169 | OFPACT_FOR_EACH_TYPE_FLATTENED(a, GROUP, actions->ofpacts, |
cc099268 JR |
9170 | actions->ofpacts_len) { |
9171 | struct ofgroup *group; | |
9172 | ||
5d08a275 JR |
9173 | group = ofproto_group_lookup(ofproto, a->group_id, OVS_VERSION_MAX, |
9174 | false); | |
cc099268 JR |
9175 | ovs_assert(group); |
9176 | ||
9177 | /* Leave the rule for the group that is being deleted, if any, | |
9178 | * as we still need the list of rules for clean-up. */ | |
9179 | if (!group->being_deleted) { | |
9180 | group_remove_rule(group, rule); | |
9181 | } | |
9182 | } | |
9183 | } | |
9184 | ||
30d0452c | 9185 | rule->state = RULE_REMOVED; |
0b4f2078 | 9186 | } |
d0918789 | 9187 | \f |
abe529af | 9188 | /* unixctl commands. */ |
7aa697dd | 9189 | |
abe529af | 9190 | struct ofproto * |
2ac6bedd | 9191 | ofproto_lookup(const char *name) |
7aa697dd | 9192 | { |
2ac6bedd | 9193 | struct ofproto *ofproto; |
7aa697dd | 9194 | |
2ac6bedd BP |
9195 | HMAP_FOR_EACH_WITH_HASH (ofproto, hmap_node, hash_string(name, 0), |
9196 | &all_ofprotos) { | |
9197 | if (!strcmp(ofproto->name, name)) { | |
9198 | return ofproto; | |
9199 | } | |
7aa697dd | 9200 | } |
2ac6bedd | 9201 | return NULL; |
7aa697dd BP |
9202 | } |
9203 | ||
9204 | static void | |
0e15264f BP |
9205 | ofproto_unixctl_list(struct unixctl_conn *conn, int argc OVS_UNUSED, |
9206 | const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED) | |
7aa697dd | 9207 | { |
7aa697dd | 9208 | struct ofproto *ofproto; |
7aa697dd | 9209 | struct ds results; |
7aa697dd | 9210 | |
7aa697dd | 9211 | ds_init(&results); |
2ac6bedd BP |
9212 | HMAP_FOR_EACH (ofproto, hmap_node, &all_ofprotos) { |
9213 | ds_put_format(&results, "%s\n", ofproto->name); | |
7aa697dd | 9214 | } |
bde9f75d | 9215 | unixctl_command_reply(conn, ds_cstr(&results)); |
7aa697dd | 9216 | ds_destroy(&results); |
7aa697dd BP |
9217 | } |
9218 | ||
9219 | static void | |
9220 | ofproto_unixctl_init(void) | |
9221 | { | |
9222 | static bool registered; | |
9223 | if (registered) { | |
9224 | return; | |
9225 | } | |
9226 | registered = true; | |
9227 | ||
0e15264f BP |
9228 | unixctl_command_register("ofproto/list", "", 0, 0, |
9229 | ofproto_unixctl_list, NULL); | |
064af421 | 9230 | } |
f0fb825a EG |
9231 | |
9232 | void | |
9233 | ofproto_set_vlan_limit(int vlan_limit) | |
9234 | { | |
9235 | flow_limit_vlans(vlan_limit); | |
9236 | } |