]>
Commit | Line | Data |
---|---|---|
064af421 | 1 | /* |
39cc5c4a | 2 | * Copyright (c) 2009-2016 Nicira, Inc. |
43253595 | 3 | * Copyright (c) 2010 Jean Tourrilhes - HP-Labs. |
064af421 | 4 | * |
a14bc59f BP |
5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
6 | * you may not use this file except in compliance with the License. | |
7 | * You may obtain a copy of the License at: | |
064af421 | 8 | * |
a14bc59f BP |
9 | * http://www.apache.org/licenses/LICENSE-2.0 |
10 | * | |
11 | * Unless required by applicable law or agreed to in writing, software | |
12 | * distributed under the License is distributed on an "AS IS" BASIS, | |
13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
14 | * See the License for the specific language governing permissions and | |
15 | * limitations under the License. | |
064af421 BP |
16 | */ |
17 | ||
18 | #include <config.h> | |
19 | #include "ofproto.h" | |
20 | #include <errno.h> | |
21 | #include <inttypes.h> | |
064af421 BP |
22 | #include <stdbool.h> |
23 | #include <stdlib.h> | |
448a4b2f | 24 | #include <unistd.h> |
52a90c29 | 25 | #include "bitmap.h" |
10a24935 | 26 | #include "byte-order.h" |
064af421 | 27 | #include "classifier.h" |
da4a6191 | 28 | #include "connectivity.h" |
19a87e36 | 29 | #include "connmgr.h" |
064af421 | 30 | #include "coverage.h" |
4f2cad2c | 31 | #include "dynamic-string.h" |
ca0f572c BP |
32 | #include "hash.h" |
33 | #include "hmap.h" | |
254750ce | 34 | #include "meta-flow.h" |
064af421 | 35 | #include "netdev.h" |
09246b99 | 36 | #include "nx-match.h" |
f25d0cf3 | 37 | #include "ofp-actions.h" |
90bf1e07 | 38 | #include "ofp-errors.h" |
982697a4 | 39 | #include "ofp-msgs.h" |
064af421 | 40 | #include "ofp-print.h" |
fa37b408 | 41 | #include "ofp-util.h" |
064af421 | 42 | #include "ofpbuf.h" |
5bee6e26 | 43 | #include "ofproto-provider.h" |
064af421 BP |
44 | #include "openflow/nicira-ext.h" |
45 | #include "openflow/openflow.h" | |
06a0f3e2 | 46 | #include "ovs-rcu.h" |
cf62fa4c | 47 | #include "dp-packet.h" |
064af421 BP |
48 | #include "packets.h" |
49 | #include "pinsched.h" | |
50 | #include "pktbuf.h" | |
51 | #include "poll-loop.h" | |
254750ce | 52 | #include "random.h" |
da4a6191 | 53 | #include "seq.h" |
064af421 | 54 | #include "shash.h" |
0d085684 | 55 | #include "simap.h" |
e8f9a7bb | 56 | #include "smap.h" |
b3c01ed3 | 57 | #include "sset.h" |
064af421 | 58 | #include "timeval.h" |
9558d2a5 | 59 | #include "tun-metadata.h" |
c4617b3c | 60 | #include "unaligned.h" |
4f2cad2c | 61 | #include "unixctl.h" |
e6211adc | 62 | #include "openvswitch/vlog.h" |
777af88d | 63 | #include "bundles.h" |
064af421 | 64 | |
d98e6007 | 65 | VLOG_DEFINE_THIS_MODULE(ofproto); |
064af421 | 66 | |
d76f09ea | 67 | COVERAGE_DEFINE(ofproto_flush); |
d76f09ea BP |
68 | COVERAGE_DEFINE(ofproto_packet_out); |
69 | COVERAGE_DEFINE(ofproto_queue_req); | |
70 | COVERAGE_DEFINE(ofproto_recv_openflow); | |
71 | COVERAGE_DEFINE(ofproto_reinit_ports); | |
d76f09ea BP |
72 | COVERAGE_DEFINE(ofproto_update_port); |
73 | ||
f017d986 JR |
74 | /* Default fields to use for prefix tries in each flow table, unless something |
75 | * else is configured. */ | |
76 | const enum mf_field_id default_prefix_fields[2] = | |
77 | { MFF_IPV4_DST, MFF_IPV4_SRC }; | |
78 | ||
d0918789 BP |
79 | /* oftable. */ |
80 | static void oftable_init(struct oftable *); | |
81 | static void oftable_destroy(struct oftable *); | |
878ae780 | 82 | |
254750ce BP |
83 | static void oftable_set_name(struct oftable *, const char *name); |
84 | ||
6787a49f | 85 | static enum ofperr evict_rules_from_table(struct oftable *) |
834fe5cb | 86 | OVS_REQUIRES(ofproto_mutex); |
82c22d34 BP |
87 | static void oftable_configure_eviction(struct oftable *, |
88 | unsigned int eviction, | |
89 | const struct mf_subfield *fields, | |
90 | size_t n_fields) | |
7394b8fb | 91 | OVS_REQUIRES(ofproto_mutex); |
254750ce | 92 | |
82c22d34 BP |
93 | /* This is the only combination of OpenFlow eviction flags that OVS supports: a |
94 | * combination of OF1.4+ importance, the remaining lifetime of the flow, and | |
95 | * fairness based on user-specified fields. */ | |
96 | #define OFPROTO_EVICTION_FLAGS \ | |
97 | (OFPTMPEF14_OTHER | OFPTMPEF14_IMPORTANCE | OFPTMPEF14_LIFETIME) | |
98 | ||
254750ce BP |
99 | /* A set of rules within a single OpenFlow table (oftable) that have the same |
100 | * values for the oftable's eviction_fields. A rule to be evicted, when one is | |
101 | * needed, is taken from the eviction group that contains the greatest number | |
102 | * of rules. | |
103 | * | |
104 | * An oftable owns any number of eviction groups, each of which contains any | |
105 | * number of rules. | |
106 | * | |
107 | * Membership in an eviction group is imprecise, based on the hash of the | |
108 | * oftable's eviction_fields (in the eviction_group's id_node.hash member). | |
109 | * That is, if two rules have different eviction_fields, but those | |
110 | * eviction_fields hash to the same value, then they will belong to the same | |
111 | * eviction_group anyway. | |
112 | * | |
113 | * (When eviction is not enabled on an oftable, we don't track any eviction | |
114 | * groups, to save time and space.) */ | |
115 | struct eviction_group { | |
116 | struct hmap_node id_node; /* In oftable's "eviction_groups_by_id". */ | |
117 | struct heap_node size_node; /* In oftable's "eviction_groups_by_size". */ | |
118 | struct heap rules; /* Contains "struct rule"s. */ | |
119 | }; | |
120 | ||
3d900aa7 BP |
121 | static bool choose_rule_to_evict(struct oftable *table, struct rule **rulep) |
122 | OVS_REQUIRES(ofproto_mutex); | |
f70b94de BP |
123 | static uint64_t rule_eviction_priority(struct ofproto *ofproto, struct rule *) |
124 | OVS_REQUIRES(ofproto_mutex); | |
3d900aa7 BP |
125 | static void eviction_group_add_rule(struct rule *) |
126 | OVS_REQUIRES(ofproto_mutex); | |
127 | static void eviction_group_remove_rule(struct rule *) | |
128 | OVS_REQUIRES(ofproto_mutex); | |
f29152ca | 129 | |
a9b22b7f BP |
130 | /* Criteria that flow_mod and other operations use for selecting rules on |
131 | * which to operate. */ | |
132 | struct rule_criteria { | |
133 | /* An OpenFlow table or 255 for all tables. */ | |
134 | uint8_t table_id; | |
135 | ||
136 | /* OpenFlow matching criteria. Interpreted different in "loose" way by | |
137 | * collect_rules_loose() and "strict" way by collect_rules_strict(), as | |
138 | * defined in the OpenFlow spec. */ | |
139 | struct cls_rule cr; | |
bd53aa17 | 140 | cls_version_t version; |
a9b22b7f BP |
141 | |
142 | /* Matching criteria for the OpenFlow cookie. Consider a bit B in a rule's | |
143 | * cookie and the corresponding bits C in 'cookie' and M in 'cookie_mask'. | |
144 | * The rule will not be selected if M is 1 and B != C. */ | |
145 | ovs_be64 cookie; | |
146 | ovs_be64 cookie_mask; | |
147 | ||
148 | /* Selection based on actions within a rule: | |
149 | * | |
150 | * If out_port != OFPP_ANY, selects only rules that output to out_port. | |
151 | * If out_group != OFPG_ALL, select only rules that output to out_group. */ | |
152 | ofp_port_t out_port; | |
153 | uint32_t out_group; | |
dd51dae2 BP |
154 | |
155 | /* If true, collects only rules that are modifiable. */ | |
156 | bool include_hidden; | |
157 | bool include_readonly; | |
a9b22b7f BP |
158 | }; |
159 | ||
160 | static void rule_criteria_init(struct rule_criteria *, uint8_t table_id, | |
eb391b76 | 161 | const struct match *match, int priority, |
18721c4a | 162 | cls_version_t version, |
a9b22b7f BP |
163 | ovs_be64 cookie, ovs_be64 cookie_mask, |
164 | ofp_port_t out_port, uint32_t out_group); | |
dd51dae2 BP |
165 | static void rule_criteria_require_rw(struct rule_criteria *, |
166 | bool can_write_readonly); | |
a9b22b7f BP |
167 | static void rule_criteria_destroy(struct rule_criteria *); |
168 | ||
35f48b8b BP |
169 | static enum ofperr collect_rules_loose(struct ofproto *, |
170 | const struct rule_criteria *, | |
171 | struct rule_collection *); | |
172 | ||
15aaf599 BP |
173 | /* A packet that needs to be passed to rule_execute(). |
174 | * | |
175 | * (We can't do this immediately from ofopgroup_complete() because that holds | |
176 | * ofproto_mutex, which rule_execute() needs released.) */ | |
35412852 | 177 | struct rule_execute { |
ca6ba700 | 178 | struct ovs_list list_node; /* In struct ofproto's "rule_executes" list. */ |
35412852 BP |
179 | struct rule *rule; /* Owns a reference to the rule. */ |
180 | ofp_port_t in_port; | |
cf62fa4c | 181 | struct dp_packet *packet; /* Owns the packet. */ |
35412852 BP |
182 | }; |
183 | ||
15aaf599 | 184 | static void run_rule_executes(struct ofproto *) OVS_EXCLUDED(ofproto_mutex); |
35412852 BP |
185 | static void destroy_rule_executes(struct ofproto *); |
186 | ||
35f48b8b BP |
187 | struct learned_cookie { |
188 | union { | |
189 | /* In struct ofproto's 'learned_cookies' hmap. */ | |
190 | struct hmap_node hmap_node OVS_GUARDED_BY(ofproto_mutex); | |
191 | ||
192 | /* In 'dead_cookies' list when removed from hmap. */ | |
ca6ba700 | 193 | struct ovs_list list_node; |
35f48b8b BP |
194 | } u; |
195 | ||
196 | /* Key. */ | |
197 | ovs_be64 cookie OVS_GUARDED_BY(ofproto_mutex); | |
198 | uint8_t table_id OVS_GUARDED_BY(ofproto_mutex); | |
199 | ||
200 | /* Number of references from "learn" actions. | |
201 | * | |
202 | * When this drops to 0, all of the flows in 'table_id' with the specified | |
203 | * 'cookie' are deleted. */ | |
204 | int n OVS_GUARDED_BY(ofproto_mutex); | |
205 | }; | |
206 | ||
207 | static const struct ofpact_learn *next_learn_with_delete( | |
208 | const struct rule_actions *, const struct ofpact_learn *start); | |
209 | ||
210 | static void learned_cookies_inc(struct ofproto *, const struct rule_actions *) | |
211 | OVS_REQUIRES(ofproto_mutex); | |
212 | static void learned_cookies_dec(struct ofproto *, const struct rule_actions *, | |
ca6ba700 | 213 | struct ovs_list *dead_cookies) |
35f48b8b | 214 | OVS_REQUIRES(ofproto_mutex); |
ca6ba700 | 215 | static void learned_cookies_flush(struct ofproto *, struct ovs_list *dead_cookies) |
35f48b8b BP |
216 | OVS_REQUIRES(ofproto_mutex); |
217 | ||
d0918789 | 218 | /* ofport. */ |
15aaf599 | 219 | static void ofport_destroy__(struct ofport *) OVS_EXCLUDED(ofproto_mutex); |
d0918789 BP |
220 | static void ofport_destroy(struct ofport *); |
221 | ||
222 | static void update_port(struct ofproto *, const char *devname); | |
223 | static int init_ports(struct ofproto *); | |
224 | static void reinit_ports(struct ofproto *); | |
7ee20df1 | 225 | |
fdcea803 GS |
226 | static long long int ofport_get_usage(const struct ofproto *, |
227 | ofp_port_t ofp_port); | |
228 | static void ofport_set_usage(struct ofproto *, ofp_port_t ofp_port, | |
229 | long long int last_used); | |
865b26a4 | 230 | static void ofport_remove_usage(struct ofproto *, ofp_port_t ofp_port); |
fdcea803 GS |
231 | |
232 | /* Ofport usage. | |
233 | * | |
234 | * Keeps track of the currently used and recently used ofport values and is | |
235 | * used to prevent immediate recycling of ofport values. */ | |
236 | struct ofport_usage { | |
237 | struct hmap_node hmap_node; /* In struct ofproto's "ofport_usage" hmap. */ | |
238 | ofp_port_t ofp_port; /* OpenFlow port number. */ | |
239 | long long int last_used; /* Last time the 'ofp_port' was used. LLONG_MAX | |
240 | represents in-use ofports. */ | |
241 | }; | |
242 | ||
254750ce | 243 | /* rule. */ |
f695ebfa JR |
244 | static void ofproto_rule_send_removed(struct rule *) |
245 | OVS_EXCLUDED(ofproto_mutex); | |
834fe5cb | 246 | static bool rule_is_readonly(const struct rule *); |
bc5e6a91 JR |
247 | static void ofproto_rule_insert__(struct ofproto *, struct rule *) |
248 | OVS_REQUIRES(ofproto_mutex); | |
802f84ff JR |
249 | static void ofproto_rule_remove__(struct ofproto *, struct rule *) |
250 | OVS_REQUIRES(ofproto_mutex); | |
254750ce | 251 | |
baae3d02 BP |
252 | /* The source of a flow_mod request, in the code that processes flow_mods. |
253 | * | |
254 | * A flow table modification request can be generated externally, via OpenFlow, | |
255 | * or internally through a function call. This structure indicates the source | |
256 | * of an OpenFlow-generated flow_mod. For an internal flow_mod, it isn't | |
257 | * meaningful and thus supplied as NULL. */ | |
258 | struct flow_mod_requester { | |
259 | struct ofconn *ofconn; /* Connection on which flow_mod arrived. */ | |
c84d8691 | 260 | const struct ofp_header *request; |
baae3d02 BP |
261 | }; |
262 | ||
d0918789 | 263 | /* OpenFlow. */ |
39c94593 | 264 | static enum ofperr replace_rule_create(struct ofproto *, |
dd27be82 | 265 | struct ofputil_flow_mod *, |
39c94593 JR |
266 | struct cls_rule *cr, uint8_t table_id, |
267 | struct rule *old_rule, | |
268 | struct rule **new_rule) | |
269 | OVS_REQUIRES(ofproto_mutex); | |
270 | ||
8be00367 JR |
271 | static void replace_rule_start(struct ofproto *, cls_version_t version, |
272 | struct rule *old_rule, struct rule *new_rule, | |
39c94593 | 273 | struct cls_conjunction *, size_t n_conjs) |
dd27be82 | 274 | OVS_REQUIRES(ofproto_mutex); |
39c94593 | 275 | |
6787a49f JR |
276 | static void replace_rule_revert(struct ofproto *, struct rule *old_rule, |
277 | struct rule *new_rule) | |
39c94593 JR |
278 | OVS_REQUIRES(ofproto_mutex); |
279 | ||
280 | static void replace_rule_finish(struct ofproto *, struct ofputil_flow_mod *, | |
281 | const struct flow_mod_requester *, | |
282 | struct rule *old_rule, struct rule *new_rule, | |
283 | struct ovs_list *dead_cookies) | |
dd27be82 | 284 | OVS_REQUIRES(ofproto_mutex); |
39c94593 | 285 | static void delete_flows__(struct rule_collection *, |
9ca4a86f BP |
286 | enum ofp_flow_removed_reason, |
287 | const struct flow_mod_requester *) | |
15aaf599 | 288 | OVS_REQUIRES(ofproto_mutex); |
834fe5cb | 289 | |
c84d8691 JR |
290 | static void send_buffered_packet(const struct flow_mod_requester *, |
291 | uint32_t buffer_id, struct rule *) | |
834fe5cb BP |
292 | OVS_REQUIRES(ofproto_mutex); |
293 | ||
7e9f8266 BP |
294 | static bool ofproto_group_exists__(const struct ofproto *ofproto, |
295 | uint32_t group_id) | |
296 | OVS_REQ_RDLOCK(ofproto->groups_rwlock); | |
84d68566 SH |
297 | static bool ofproto_group_exists(const struct ofproto *ofproto, |
298 | uint32_t group_id) | |
7e9f8266 | 299 | OVS_EXCLUDED(ofproto->groups_rwlock); |
63eded98 BP |
300 | static enum ofperr add_group(struct ofproto *, |
301 | const struct ofputil_group_mod *); | |
b20f4073 | 302 | static void handle_openflow(struct ofconn *, const struct ofpbuf *); |
8be00367 JR |
303 | static enum ofperr ofproto_flow_mod_start(struct ofproto *, |
304 | struct ofproto_flow_mod *) | |
1f42be1c | 305 | OVS_REQUIRES(ofproto_mutex); |
8be00367 JR |
306 | static void ofproto_flow_mod_finish(struct ofproto *, |
307 | struct ofproto_flow_mod *, | |
308 | const struct flow_mod_requester *) | |
1f42be1c | 309 | OVS_REQUIRES(ofproto_mutex); |
baae3d02 | 310 | static enum ofperr handle_flow_mod__(struct ofproto *, |
8be00367 | 311 | struct ofproto_flow_mod *, |
baae3d02 | 312 | const struct flow_mod_requester *) |
15aaf599 | 313 | OVS_EXCLUDED(ofproto_mutex); |
65e0be10 BP |
314 | static void calc_duration(long long int start, long long int now, |
315 | uint32_t *sec, uint32_t *nsec); | |
f29152ca | 316 | |
d0918789 BP |
317 | /* ofproto. */ |
318 | static uint64_t pick_datapath_id(const struct ofproto *); | |
319 | static uint64_t pick_fallback_dpid(void); | |
320 | static void ofproto_destroy__(struct ofproto *); | |
ada3428f | 321 | static void update_mtu(struct ofproto *, struct ofport *); |
6b3f7f02 | 322 | static void meter_delete(struct ofproto *, uint32_t first, uint32_t last); |
062fea06 | 323 | static void meter_insert_rule(struct rule *); |
f29152ca | 324 | |
d0918789 | 325 | /* unixctl. */ |
abe529af | 326 | static void ofproto_unixctl_init(void); |
f29152ca | 327 | |
abe529af BP |
328 | /* All registered ofproto classes, in probe order. */ |
329 | static const struct ofproto_class **ofproto_classes; | |
330 | static size_t n_ofproto_classes; | |
331 | static size_t allocated_ofproto_classes; | |
7aa697dd | 332 | |
15aaf599 BP |
333 | /* Global lock that protects all flow table operations. */ |
334 | struct ovs_mutex ofproto_mutex = OVS_MUTEX_INITIALIZER; | |
abe7b10f | 335 | |
e79a6c83 | 336 | unsigned ofproto_flow_limit = OFPROTO_FLOW_LIMIT_DEFAULT; |
72310b04 | 337 | unsigned ofproto_max_idle = OFPROTO_MAX_IDLE_DEFAULT; |
380f49c4 | 338 | |
e79a6c83 | 339 | size_t n_handlers, n_revalidators; |
f2eee189 AW |
340 | size_t n_dpdk_rxqs; |
341 | char *pmd_cpu_mask; | |
6567010f | 342 | |
f797957a | 343 | /* Map from datapath name to struct ofproto, for use by unixctl commands. */ |
abe529af | 344 | static struct hmap all_ofprotos = HMAP_INITIALIZER(&all_ofprotos); |
ebe482fd | 345 | |
e1b1d06a JP |
346 | /* Initial mappings of port to OpenFlow number mappings. */ |
347 | static struct shash init_ofp_ports = SHASH_INITIALIZER(&init_ofp_ports); | |
348 | ||
abe529af | 349 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); |
f29152ca | 350 | |
40358701 GS |
351 | /* The default value of true waits for flow restore. */ |
352 | static bool flow_restore_wait = true; | |
353 | ||
b0408fca JP |
354 | /* Must be called to initialize the ofproto library. |
355 | * | |
356 | * The caller may pass in 'iface_hints', which contains an shash of | |
357 | * "iface_hint" elements indexed by the interface's name. The provider | |
358 | * may use these hints to describe the startup configuration in order to | |
359 | * reinitialize its state. The caller owns the provided data, so a | |
360 | * provider will make copies of anything required. An ofproto provider | |
361 | * will remove any existing state that is not described by the hint, and | |
362 | * may choose to remove it all. */ | |
363 | void | |
364 | ofproto_init(const struct shash *iface_hints) | |
abe529af | 365 | { |
e1b1d06a | 366 | struct shash_node *node; |
b0408fca | 367 | size_t i; |
f29152ca | 368 | |
b0408fca JP |
369 | ofproto_class_register(&ofproto_dpif_class); |
370 | ||
e1b1d06a JP |
371 | /* Make a local copy, since we don't own 'iface_hints' elements. */ |
372 | SHASH_FOR_EACH(node, iface_hints) { | |
373 | const struct iface_hint *orig_hint = node->data; | |
374 | struct iface_hint *new_hint = xmalloc(sizeof *new_hint); | |
375 | const char *br_type = ofproto_normalize_type(orig_hint->br_type); | |
376 | ||
377 | new_hint->br_name = xstrdup(orig_hint->br_name); | |
378 | new_hint->br_type = xstrdup(br_type); | |
379 | new_hint->ofp_port = orig_hint->ofp_port; | |
380 | ||
381 | shash_add(&init_ofp_ports, node->name, new_hint); | |
382 | } | |
383 | ||
b0408fca | 384 | for (i = 0; i < n_ofproto_classes; i++) { |
e1b1d06a | 385 | ofproto_classes[i]->init(&init_ofp_ports); |
abe529af | 386 | } |
0fc1f5c0 HH |
387 | |
388 | ofproto_unixctl_init(); | |
abe529af | 389 | } |
f29152ca | 390 | |
abe529af BP |
391 | /* 'type' should be a normalized datapath type, as returned by |
392 | * ofproto_normalize_type(). Returns the corresponding ofproto_class | |
393 | * structure, or a null pointer if there is none registered for 'type'. */ | |
394 | static const struct ofproto_class * | |
395 | ofproto_class_find__(const char *type) | |
396 | { | |
397 | size_t i; | |
f29152ca | 398 | |
abe529af BP |
399 | for (i = 0; i < n_ofproto_classes; i++) { |
400 | const struct ofproto_class *class = ofproto_classes[i]; | |
401 | struct sset types; | |
402 | bool found; | |
064af421 | 403 | |
abe529af BP |
404 | sset_init(&types); |
405 | class->enumerate_types(&types); | |
406 | found = sset_contains(&types, type); | |
407 | sset_destroy(&types); | |
bcf84111 | 408 | |
abe529af BP |
409 | if (found) { |
410 | return class; | |
411 | } | |
412 | } | |
413 | VLOG_WARN("unknown datapath type %s", type); | |
414 | return NULL; | |
415 | } | |
064af421 | 416 | |
abe529af BP |
417 | /* Registers a new ofproto class. After successful registration, new ofprotos |
418 | * of that type can be created using ofproto_create(). */ | |
419 | int | |
420 | ofproto_class_register(const struct ofproto_class *new_class) | |
421 | { | |
422 | size_t i; | |
7aa697dd | 423 | |
abe529af BP |
424 | for (i = 0; i < n_ofproto_classes; i++) { |
425 | if (ofproto_classes[i] == new_class) { | |
426 | return EEXIST; | |
427 | } | |
428 | } | |
064af421 | 429 | |
abe529af BP |
430 | if (n_ofproto_classes >= allocated_ofproto_classes) { |
431 | ofproto_classes = x2nrealloc(ofproto_classes, | |
432 | &allocated_ofproto_classes, | |
433 | sizeof *ofproto_classes); | |
434 | } | |
435 | ofproto_classes[n_ofproto_classes++] = new_class; | |
436 | return 0; | |
437 | } | |
064af421 | 438 | |
abe529af BP |
439 | /* Unregisters a datapath provider. 'type' must have been previously |
440 | * registered and not currently be in use by any ofprotos. After | |
441 | * unregistration new datapaths of that type cannot be opened using | |
442 | * ofproto_create(). */ | |
443 | int | |
444 | ofproto_class_unregister(const struct ofproto_class *class) | |
445 | { | |
446 | size_t i; | |
76ce9432 | 447 | |
abe529af BP |
448 | for (i = 0; i < n_ofproto_classes; i++) { |
449 | if (ofproto_classes[i] == class) { | |
450 | for (i++; i < n_ofproto_classes; i++) { | |
451 | ofproto_classes[i - 1] = ofproto_classes[i]; | |
452 | } | |
453 | n_ofproto_classes--; | |
454 | return 0; | |
455 | } | |
456 | } | |
457 | VLOG_WARN("attempted to unregister an ofproto class that is not " | |
458 | "registered"); | |
459 | return EAFNOSUPPORT; | |
460 | } | |
4a4cdb3b | 461 | |
f79e673f BP |
462 | /* Clears 'types' and enumerates all registered ofproto types into it. The |
463 | * caller must first initialize the sset. */ | |
464 | void | |
465 | ofproto_enumerate_types(struct sset *types) | |
466 | { | |
abe529af | 467 | size_t i; |
064af421 | 468 | |
c799c306 | 469 | sset_clear(types); |
abe529af BP |
470 | for (i = 0; i < n_ofproto_classes; i++) { |
471 | ofproto_classes[i]->enumerate_types(types); | |
472 | } | |
f79e673f | 473 | } |
064af421 | 474 | |
f79e673f BP |
475 | /* Returns the fully spelled out name for the given ofproto 'type'. |
476 | * | |
477 | * Normalized type string can be compared with strcmp(). Unnormalized type | |
478 | * string might be the same even if they have different spellings. */ | |
479 | const char * | |
480 | ofproto_normalize_type(const char *type) | |
481 | { | |
abe529af | 482 | return type && type[0] ? type : "system"; |
f79e673f | 483 | } |
064af421 | 484 | |
f79e673f BP |
485 | /* Clears 'names' and enumerates the names of all known created ofprotos with |
486 | * the given 'type'. The caller must first initialize the sset. Returns 0 if | |
487 | * successful, otherwise a positive errno value. | |
488 | * | |
489 | * Some kinds of datapaths might not be practically enumerable. This is not | |
490 | * considered an error. */ | |
491 | int | |
492 | ofproto_enumerate_names(const char *type, struct sset *names) | |
493 | { | |
abe529af BP |
494 | const struct ofproto_class *class = ofproto_class_find__(type); |
495 | return class ? class->enumerate_names(type, names) : EAFNOSUPPORT; | |
239ad7d1 | 496 | } |
7aa697dd | 497 | |
39c94593 JR |
498 | static void |
499 | ofproto_bump_tables_version(struct ofproto *ofproto) | |
500 | { | |
501 | ++ofproto->tables_version; | |
502 | ofproto->ofproto_class->set_tables_version(ofproto, | |
503 | ofproto->tables_version); | |
504 | } | |
505 | ||
064af421 | 506 | int |
abe529af | 507 | ofproto_create(const char *datapath_name, const char *datapath_type, |
064af421 BP |
508 | struct ofproto **ofprotop) |
509 | { | |
abe529af BP |
510 | const struct ofproto_class *class; |
511 | struct ofproto *ofproto; | |
064af421 | 512 | int error; |
c2f0373a | 513 | int i; |
064af421 BP |
514 | |
515 | *ofprotop = NULL; | |
516 | ||
abe529af BP |
517 | datapath_type = ofproto_normalize_type(datapath_type); |
518 | class = ofproto_class_find__(datapath_type); | |
519 | if (!class) { | |
520 | VLOG_WARN("could not create datapath %s of unknown type %s", | |
521 | datapath_name, datapath_type); | |
522 | return EAFNOSUPPORT; | |
064af421 BP |
523 | } |
524 | ||
abe529af BP |
525 | ofproto = class->alloc(); |
526 | if (!ofproto) { | |
527 | VLOG_ERR("failed to allocate datapath %s of type %s", | |
528 | datapath_name, datapath_type); | |
529 | return ENOMEM; | |
530 | } | |
531 | ||
532 | /* Initialize. */ | |
abe7b10f | 533 | ovs_mutex_lock(&ofproto_mutex); |
abe529af BP |
534 | memset(ofproto, 0, sizeof *ofproto); |
535 | ofproto->ofproto_class = class; | |
536 | ofproto->name = xstrdup(datapath_name); | |
537 | ofproto->type = xstrdup(datapath_type); | |
538 | hmap_insert(&all_ofprotos, &ofproto->hmap_node, | |
539 | hash_string(ofproto->name, 0)); | |
540 | ofproto->datapath_id = 0; | |
8402c74b | 541 | ofproto->forward_bpdu = false; |
abe529af | 542 | ofproto->fallback_dpid = pick_fallback_dpid(); |
061bfea4 BP |
543 | ofproto->mfr_desc = NULL; |
544 | ofproto->hw_desc = NULL; | |
545 | ofproto->sw_desc = NULL; | |
546 | ofproto->serial_desc = NULL; | |
547 | ofproto->dp_desc = NULL; | |
ad99e2ed | 548 | ofproto->frag_handling = OFPUTIL_FRAG_NORMAL; |
abe529af | 549 | hmap_init(&ofproto->ports); |
fdcea803 | 550 | hmap_init(&ofproto->ofport_usage); |
abe529af | 551 | shash_init(&ofproto->port_by_name); |
e1b1d06a | 552 | simap_init(&ofproto->ofp_requests); |
430dbb14 | 553 | ofproto->max_ports = ofp_to_u16(OFPP_MAX); |
448c2fa8 | 554 | ofproto->eviction_group_timer = LLONG_MIN; |
6c1491fb BP |
555 | ofproto->tables = NULL; |
556 | ofproto->n_tables = 0; | |
621b8064 | 557 | ofproto->tables_version = CLS_MIN_VERSION; |
98eaac36 | 558 | hindex_init(&ofproto->cookies); |
35f48b8b | 559 | hmap_init(&ofproto->learned_cookies); |
e503cc19 | 560 | list_init(&ofproto->expirable); |
abe529af | 561 | ofproto->connmgr = connmgr_create(ofproto, datapath_name, datapath_name); |
35412852 | 562 | guarded_list_init(&ofproto->rule_executes); |
52a90c29 BP |
563 | ofproto->vlan_bitmap = NULL; |
564 | ofproto->vlans_changed = false; | |
ada3428f | 565 | ofproto->min_mtu = INT_MAX; |
7395c052 NZ |
566 | ovs_rwlock_init(&ofproto->groups_rwlock); |
567 | hmap_init(&ofproto->groups); | |
abe7b10f | 568 | ovs_mutex_unlock(&ofproto_mutex); |
0ae01c64 | 569 | ofproto->ogf.types = 0xf; |
7cb279c2 SH |
570 | ofproto->ogf.capabilities = OFPGFC_CHAINING | OFPGFC_SELECT_LIVENESS | |
571 | OFPGFC_SELECT_WEIGHT; | |
08d1e234 BP |
572 | for (i = 0; i < 4; i++) { |
573 | ofproto->ogf.max_groups[i] = OFPG_MAX; | |
574 | ofproto->ogf.ofpacts[i] = (UINT64_C(1) << N_OFPACTS) - 1; | |
575 | } | |
9558d2a5 | 576 | tun_metadata_init(); |
abe529af | 577 | |
0f5f95a9 | 578 | error = ofproto->ofproto_class->construct(ofproto); |
19a87e36 | 579 | if (error) { |
abe529af | 580 | VLOG_ERR("failed to open datapath %s: %s", |
10a89ef0 | 581 | datapath_name, ovs_strerror(error)); |
58f19539 | 582 | connmgr_destroy(ofproto->connmgr); |
abe529af | 583 | ofproto_destroy__(ofproto); |
19a87e36 BP |
584 | return error; |
585 | } | |
073e2a6f | 586 | |
c2f0373a | 587 | /* Check that hidden tables, if any, are at the end. */ |
cb22974d | 588 | ovs_assert(ofproto->n_tables); |
c2f0373a BP |
589 | for (i = 0; i + 1 < ofproto->n_tables; i++) { |
590 | enum oftable_flags flags = ofproto->tables[i].flags; | |
591 | enum oftable_flags next_flags = ofproto->tables[i + 1].flags; | |
592 | ||
cb22974d | 593 | ovs_assert(!(flags & OFTABLE_HIDDEN) || next_flags & OFTABLE_HIDDEN); |
c2f0373a | 594 | } |
19a87e36 | 595 | |
abe529af | 596 | ofproto->datapath_id = pick_datapath_id(ofproto); |
abe529af | 597 | init_ports(ofproto); |
7aa697dd | 598 | |
9cae45dc JR |
599 | /* Initialize meters table. */ |
600 | if (ofproto->ofproto_class->meter_get_features) { | |
601 | ofproto->ofproto_class->meter_get_features(ofproto, | |
602 | &ofproto->meter_features); | |
603 | } else { | |
604 | memset(&ofproto->meter_features, 0, sizeof ofproto->meter_features); | |
605 | } | |
606 | ofproto->meters = xzalloc((ofproto->meter_features.max_meters + 1) | |
607 | * sizeof(struct meter *)); | |
608 | ||
621b8064 | 609 | /* Set the initial tables version. */ |
39c94593 | 610 | ofproto_bump_tables_version(ofproto); |
621b8064 | 611 | |
abe529af | 612 | *ofprotop = ofproto; |
064af421 BP |
613 | return 0; |
614 | } | |
615 | ||
91858960 BP |
616 | /* Must be called (only) by an ofproto implementation in its constructor |
617 | * function. See the large comment on 'construct' in struct ofproto_class for | |
618 | * details. */ | |
0f5f95a9 BP |
619 | void |
620 | ofproto_init_tables(struct ofproto *ofproto, int n_tables) | |
621 | { | |
622 | struct oftable *table; | |
623 | ||
cb22974d BP |
624 | ovs_assert(!ofproto->n_tables); |
625 | ovs_assert(n_tables >= 1 && n_tables <= 255); | |
0f5f95a9 BP |
626 | |
627 | ofproto->n_tables = n_tables; | |
628 | ofproto->tables = xmalloc(n_tables * sizeof *ofproto->tables); | |
629 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { | |
630 | oftable_init(table); | |
631 | } | |
632 | } | |
633 | ||
91858960 BP |
634 | /* To be optionally called (only) by an ofproto implementation in its |
635 | * constructor function. See the large comment on 'construct' in struct | |
636 | * ofproto_class for details. | |
637 | * | |
638 | * Sets the maximum number of ports to 'max_ports'. The ofproto generic layer | |
639 | * will then ensure that actions passed into the ofproto implementation will | |
640 | * not refer to OpenFlow ports numbered 'max_ports' or higher. If this | |
641 | * function is not called, there will be no such restriction. | |
642 | * | |
643 | * Reserved ports numbered OFPP_MAX and higher are special and not subject to | |
644 | * the 'max_ports' restriction. */ | |
645 | void | |
430dbb14 | 646 | ofproto_init_max_ports(struct ofproto *ofproto, uint16_t max_ports) |
91858960 | 647 | { |
430dbb14 | 648 | ovs_assert(max_ports <= ofp_to_u16(OFPP_MAX)); |
91858960 BP |
649 | ofproto->max_ports = max_ports; |
650 | } | |
651 | ||
e825ace2 BP |
652 | uint64_t |
653 | ofproto_get_datapath_id(const struct ofproto *ofproto) | |
654 | { | |
655 | return ofproto->datapath_id; | |
656 | } | |
657 | ||
064af421 BP |
658 | void |
659 | ofproto_set_datapath_id(struct ofproto *p, uint64_t datapath_id) | |
660 | { | |
661 | uint64_t old_dpid = p->datapath_id; | |
fa60c019 | 662 | p->datapath_id = datapath_id ? datapath_id : pick_datapath_id(p); |
064af421 | 663 | if (p->datapath_id != old_dpid) { |
76ce9432 BP |
664 | /* Force all active connections to reconnect, since there is no way to |
665 | * notify a controller that the datapath ID has changed. */ | |
fa05809b | 666 | ofproto_reconnect_controllers(p); |
064af421 BP |
667 | } |
668 | } | |
669 | ||
76ce9432 BP |
670 | void |
671 | ofproto_set_controllers(struct ofproto *p, | |
672 | const struct ofproto_controller *controllers, | |
1d9ffc17 | 673 | size_t n_controllers, uint32_t allowed_versions) |
76ce9432 | 674 | { |
1d9ffc17 SH |
675 | connmgr_set_controllers(p->connmgr, controllers, n_controllers, |
676 | allowed_versions); | |
064af421 BP |
677 | } |
678 | ||
31681a5d JP |
679 | void |
680 | ofproto_set_fail_mode(struct ofproto *p, enum ofproto_fail_mode fail_mode) | |
681 | { | |
19a87e36 | 682 | connmgr_set_fail_mode(p->connmgr, fail_mode); |
31681a5d JP |
683 | } |
684 | ||
fa05809b BP |
685 | /* Drops the connections between 'ofproto' and all of its controllers, forcing |
686 | * them to reconnect. */ | |
687 | void | |
688 | ofproto_reconnect_controllers(struct ofproto *ofproto) | |
689 | { | |
19a87e36 | 690 | connmgr_reconnect(ofproto->connmgr); |
917e50e1 BP |
691 | } |
692 | ||
693 | /* Sets the 'n' TCP port addresses in 'extras' as ones to which 'ofproto''s | |
694 | * in-band control should guarantee access, in the same way that in-band | |
695 | * control guarantees access to OpenFlow controllers. */ | |
696 | void | |
697 | ofproto_set_extra_in_band_remotes(struct ofproto *ofproto, | |
698 | const struct sockaddr_in *extras, size_t n) | |
699 | { | |
19a87e36 | 700 | connmgr_set_extra_in_band_remotes(ofproto->connmgr, extras, n); |
917e50e1 BP |
701 | } |
702 | ||
b1da6250 BP |
703 | /* Sets the OpenFlow queue used by flows set up by in-band control on |
704 | * 'ofproto' to 'queue_id'. If 'queue_id' is negative, then in-band control | |
705 | * flows will use the default queue. */ | |
706 | void | |
707 | ofproto_set_in_band_queue(struct ofproto *ofproto, int queue_id) | |
708 | { | |
19a87e36 | 709 | connmgr_set_in_band_queue(ofproto->connmgr, queue_id); |
b1da6250 BP |
710 | } |
711 | ||
084f5290 SH |
712 | /* Sets the number of flows at which eviction from the kernel flow table |
713 | * will occur. */ | |
714 | void | |
e79a6c83 | 715 | ofproto_set_flow_limit(unsigned limit) |
084f5290 | 716 | { |
e79a6c83 | 717 | ofproto_flow_limit = limit; |
084f5290 SH |
718 | } |
719 | ||
72310b04 JS |
720 | /* Sets the maximum idle time for flows in the datapath before they are |
721 | * expired. */ | |
722 | void | |
723 | ofproto_set_max_idle(unsigned max_idle) | |
724 | { | |
725 | ofproto_max_idle = max_idle; | |
726 | } | |
727 | ||
b53055f4 | 728 | /* If forward_bpdu is true, the NORMAL action will forward frames with |
8402c74b SS |
729 | * reserved (e.g. STP) destination Ethernet addresses. if forward_bpdu is false, |
730 | * the NORMAL action will drop these frames. */ | |
731 | void | |
732 | ofproto_set_forward_bpdu(struct ofproto *ofproto, bool forward_bpdu) | |
733 | { | |
734 | bool old_val = ofproto->forward_bpdu; | |
735 | ofproto->forward_bpdu = forward_bpdu; | |
736 | if (old_val != ofproto->forward_bpdu) { | |
737 | if (ofproto->ofproto_class->forward_bpdu_changed) { | |
738 | ofproto->ofproto_class->forward_bpdu_changed(ofproto); | |
739 | } | |
b53055f4 | 740 | } |
8402c74b SS |
741 | } |
742 | ||
e764773c | 743 | /* Sets the MAC aging timeout for the OFPP_NORMAL action on 'ofproto' to |
c4069512 BP |
744 | * 'idle_time', in seconds, and the maximum number of MAC table entries to |
745 | * 'max_entries'. */ | |
e764773c | 746 | void |
c4069512 BP |
747 | ofproto_set_mac_table_config(struct ofproto *ofproto, unsigned idle_time, |
748 | size_t max_entries) | |
e764773c | 749 | { |
c4069512 BP |
750 | if (ofproto->ofproto_class->set_mac_table_config) { |
751 | ofproto->ofproto_class->set_mac_table_config(ofproto, idle_time, | |
752 | max_entries); | |
e764773c BP |
753 | } |
754 | } | |
755 | ||
7c38d0a5 FL |
756 | /* Multicast snooping configuration. */ |
757 | ||
758 | /* Configures multicast snooping on 'ofproto' using the settings | |
759 | * defined in 's'. If 's' is NULL, disables multicast snooping. | |
760 | * | |
761 | * Returns 0 if successful, otherwise a positive errno value. */ | |
762 | int | |
763 | ofproto_set_mcast_snooping(struct ofproto *ofproto, | |
764 | const struct ofproto_mcast_snooping_settings *s) | |
765 | { | |
766 | return (ofproto->ofproto_class->set_mcast_snooping | |
767 | ? ofproto->ofproto_class->set_mcast_snooping(ofproto, s) | |
768 | : EOPNOTSUPP); | |
769 | } | |
770 | ||
8e04a33f | 771 | /* Configures multicast snooping flood settings on 'ofp_port' of 'ofproto'. |
7c38d0a5 FL |
772 | * |
773 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
774 | int | |
8e04a33f FL |
775 | ofproto_port_set_mcast_snooping(struct ofproto *ofproto, void *aux, |
776 | const struct ofproto_mcast_snooping_port_settings *s) | |
7c38d0a5 FL |
777 | { |
778 | return (ofproto->ofproto_class->set_mcast_snooping_port | |
8e04a33f | 779 | ? ofproto->ofproto_class->set_mcast_snooping_port(ofproto, aux, s) |
7c38d0a5 FL |
780 | : EOPNOTSUPP); |
781 | } | |
782 | ||
f2eee189 AW |
783 | void |
784 | ofproto_set_n_dpdk_rxqs(int n_rxqs) | |
785 | { | |
786 | n_dpdk_rxqs = MAX(n_rxqs, 0); | |
787 | } | |
788 | ||
789 | void | |
790 | ofproto_set_cpu_mask(const char *cmask) | |
791 | { | |
792 | free(pmd_cpu_mask); | |
793 | ||
794 | pmd_cpu_mask = cmask ? xstrdup(cmask) : NULL; | |
795 | } | |
796 | ||
448a4b2f | 797 | void |
30ea0da7 | 798 | ofproto_set_threads(int n_handlers_, int n_revalidators_) |
448a4b2f | 799 | { |
e79a6c83 EJ |
800 | int threads = MAX(count_cpu_cores(), 2); |
801 | ||
30ea0da7 GS |
802 | n_revalidators = MAX(n_revalidators_, 0); |
803 | n_handlers = MAX(n_handlers_, 0); | |
e79a6c83 EJ |
804 | |
805 | if (!n_revalidators) { | |
806 | n_revalidators = n_handlers | |
807 | ? MAX(threads - (int) n_handlers, 1) | |
808 | : threads / 4 + 1; | |
809 | } | |
810 | ||
811 | if (!n_handlers) { | |
812 | n_handlers = MAX(threads - (int) n_revalidators, 1); | |
813 | } | |
448a4b2f AW |
814 | } |
815 | ||
8b6ff729 BP |
816 | void |
817 | ofproto_set_dp_desc(struct ofproto *p, const char *dp_desc) | |
818 | { | |
819 | free(p->dp_desc); | |
820 | p->dp_desc = dp_desc ? xstrdup(dp_desc) : NULL; | |
821 | } | |
822 | ||
064af421 | 823 | int |
81e2083f | 824 | ofproto_set_snoops(struct ofproto *ofproto, const struct sset *snoops) |
064af421 | 825 | { |
19a87e36 | 826 | return connmgr_set_snoops(ofproto->connmgr, snoops); |
064af421 BP |
827 | } |
828 | ||
829 | int | |
0193b2af JG |
830 | ofproto_set_netflow(struct ofproto *ofproto, |
831 | const struct netflow_options *nf_options) | |
064af421 | 832 | { |
abe529af BP |
833 | if (nf_options && sset_is_empty(&nf_options->collectors)) { |
834 | nf_options = NULL; | |
835 | } | |
836 | ||
837 | if (ofproto->ofproto_class->set_netflow) { | |
838 | return ofproto->ofproto_class->set_netflow(ofproto, nf_options); | |
064af421 | 839 | } else { |
abe529af | 840 | return nf_options ? EOPNOTSUPP : 0; |
064af421 BP |
841 | } |
842 | } | |
843 | ||
abe529af | 844 | int |
72b06300 BP |
845 | ofproto_set_sflow(struct ofproto *ofproto, |
846 | const struct ofproto_sflow_options *oso) | |
847 | { | |
abe529af BP |
848 | if (oso && sset_is_empty(&oso->targets)) { |
849 | oso = NULL; | |
850 | } | |
72b06300 | 851 | |
abe529af BP |
852 | if (ofproto->ofproto_class->set_sflow) { |
853 | return ofproto->ofproto_class->set_sflow(ofproto, oso); | |
72b06300 | 854 | } else { |
abe529af | 855 | return oso ? EOPNOTSUPP : 0; |
72b06300 BP |
856 | } |
857 | } | |
29089a54 RL |
858 | |
859 | int | |
860 | ofproto_set_ipfix(struct ofproto *ofproto, | |
861 | const struct ofproto_ipfix_bridge_exporter_options *bo, | |
862 | const struct ofproto_ipfix_flow_exporter_options *fo, | |
863 | size_t n_fo) | |
864 | { | |
865 | if (ofproto->ofproto_class->set_ipfix) { | |
866 | return ofproto->ofproto_class->set_ipfix(ofproto, bo, fo, n_fo); | |
867 | } else { | |
868 | return (bo || fo) ? EOPNOTSUPP : 0; | |
869 | } | |
870 | } | |
40358701 GS |
871 | |
872 | void | |
873 | ofproto_set_flow_restore_wait(bool flow_restore_wait_db) | |
874 | { | |
875 | flow_restore_wait = flow_restore_wait_db; | |
876 | } | |
877 | ||
878 | bool | |
879 | ofproto_get_flow_restore_wait(void) | |
880 | { | |
881 | return flow_restore_wait; | |
882 | } | |
883 | ||
e7934396 | 884 | \f |
21f7563c JP |
885 | /* Spanning Tree Protocol (STP) configuration. */ |
886 | ||
887 | /* Configures STP on 'ofproto' using the settings defined in 's'. If | |
888 | * 's' is NULL, disables STP. | |
889 | * | |
890 | * Returns 0 if successful, otherwise a positive errno value. */ | |
891 | int | |
892 | ofproto_set_stp(struct ofproto *ofproto, | |
893 | const struct ofproto_stp_settings *s) | |
894 | { | |
895 | return (ofproto->ofproto_class->set_stp | |
896 | ? ofproto->ofproto_class->set_stp(ofproto, s) | |
897 | : EOPNOTSUPP); | |
898 | } | |
899 | ||
900 | /* Retrieves STP status of 'ofproto' and stores it in 's'. If the | |
901 | * 'enabled' member of 's' is false, then the other members are not | |
902 | * meaningful. | |
903 | * | |
904 | * Returns 0 if successful, otherwise a positive errno value. */ | |
905 | int | |
906 | ofproto_get_stp_status(struct ofproto *ofproto, | |
907 | struct ofproto_stp_status *s) | |
908 | { | |
909 | return (ofproto->ofproto_class->get_stp_status | |
910 | ? ofproto->ofproto_class->get_stp_status(ofproto, s) | |
911 | : EOPNOTSUPP); | |
912 | } | |
913 | ||
914 | /* Configures STP on 'ofp_port' of 'ofproto' using the settings defined | |
915 | * in 's'. The caller is responsible for assigning STP port numbers | |
916 | * (using the 'port_num' member in the range of 1 through 255, inclusive) | |
917 | * and ensuring there are no duplicates. If the 's' is NULL, then STP | |
918 | * is disabled on the port. | |
919 | * | |
920 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
921 | int | |
4e022ec0 | 922 | ofproto_port_set_stp(struct ofproto *ofproto, ofp_port_t ofp_port, |
21f7563c JP |
923 | const struct ofproto_port_stp_settings *s) |
924 | { | |
925 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
926 | if (!ofport) { | |
927 | VLOG_WARN("%s: cannot configure STP on nonexistent port %"PRIu16, | |
928 | ofproto->name, ofp_port); | |
929 | return ENODEV; | |
930 | } | |
931 | ||
932 | return (ofproto->ofproto_class->set_stp_port | |
933 | ? ofproto->ofproto_class->set_stp_port(ofport, s) | |
934 | : EOPNOTSUPP); | |
935 | } | |
936 | ||
937 | /* Retrieves STP port status of 'ofp_port' on 'ofproto' and stores it in | |
938 | * 's'. If the 'enabled' member in 's' is false, then the other members | |
939 | * are not meaningful. | |
940 | * | |
941 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
942 | int | |
4e022ec0 | 943 | ofproto_port_get_stp_status(struct ofproto *ofproto, ofp_port_t ofp_port, |
21f7563c JP |
944 | struct ofproto_port_stp_status *s) |
945 | { | |
946 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
947 | if (!ofport) { | |
b0a5c43b JP |
948 | VLOG_WARN_RL(&rl, "%s: cannot get STP status on nonexistent " |
949 | "port %"PRIu16, ofproto->name, ofp_port); | |
21f7563c JP |
950 | return ENODEV; |
951 | } | |
952 | ||
953 | return (ofproto->ofproto_class->get_stp_port_status | |
954 | ? ofproto->ofproto_class->get_stp_port_status(ofport, s) | |
955 | : EOPNOTSUPP); | |
956 | } | |
fd28ce3a JS |
957 | |
958 | /* Retrieves STP port statistics of 'ofp_port' on 'ofproto' and stores it in | |
959 | * 's'. If the 'enabled' member in 's' is false, then the other members | |
960 | * are not meaningful. | |
961 | * | |
962 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
963 | int | |
964 | ofproto_port_get_stp_stats(struct ofproto *ofproto, ofp_port_t ofp_port, | |
965 | struct ofproto_port_stp_stats *s) | |
966 | { | |
967 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
968 | if (!ofport) { | |
969 | VLOG_WARN_RL(&rl, "%s: cannot get STP stats on nonexistent " | |
970 | "port %"PRIu16, ofproto->name, ofp_port); | |
971 | return ENODEV; | |
972 | } | |
973 | ||
974 | return (ofproto->ofproto_class->get_stp_port_stats | |
975 | ? ofproto->ofproto_class->get_stp_port_stats(ofport, s) | |
976 | : EOPNOTSUPP); | |
977 | } | |
9efd308e DV |
978 | |
979 | /* Rapid Spanning Tree Protocol (RSTP) configuration. */ | |
980 | ||
981 | /* Configures RSTP on 'ofproto' using the settings defined in 's'. If | |
982 | * 's' is NULL, disables RSTP. | |
983 | * | |
984 | * Returns 0 if successful, otherwise a positive errno value. */ | |
985 | int | |
986 | ofproto_set_rstp(struct ofproto *ofproto, | |
987 | const struct ofproto_rstp_settings *s) | |
988 | { | |
989 | if (!ofproto->ofproto_class->set_rstp) { | |
990 | return EOPNOTSUPP; | |
991 | } | |
992 | ofproto->ofproto_class->set_rstp(ofproto, s); | |
993 | return 0; | |
994 | } | |
995 | ||
996 | /* Retrieves RSTP status of 'ofproto' and stores it in 's'. If the | |
997 | * 'enabled' member of 's' is false, then the other members are not | |
998 | * meaningful. | |
999 | * | |
1000 | * Returns 0 if successful, otherwise a positive errno value. */ | |
1001 | int | |
1002 | ofproto_get_rstp_status(struct ofproto *ofproto, | |
1003 | struct ofproto_rstp_status *s) | |
1004 | { | |
1005 | if (!ofproto->ofproto_class->get_rstp_status) { | |
1006 | return EOPNOTSUPP; | |
1007 | } | |
1008 | ofproto->ofproto_class->get_rstp_status(ofproto, s); | |
1009 | return 0; | |
1010 | } | |
1011 | ||
1012 | /* Configures RSTP on 'ofp_port' of 'ofproto' using the settings defined | |
1013 | * in 's'. The caller is responsible for assigning RSTP port numbers | |
1014 | * (using the 'port_num' member in the range of 1 through 255, inclusive) | |
1015 | * and ensuring there are no duplicates. If the 's' is NULL, then RSTP | |
1016 | * is disabled on the port. | |
1017 | * | |
1018 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
1019 | int | |
1020 | ofproto_port_set_rstp(struct ofproto *ofproto, ofp_port_t ofp_port, | |
1021 | const struct ofproto_port_rstp_settings *s) | |
1022 | { | |
1023 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1024 | if (!ofport) { | |
1025 | VLOG_WARN("%s: cannot configure RSTP on nonexistent port %"PRIu16, | |
1026 | ofproto->name, ofp_port); | |
1027 | return ENODEV; | |
1028 | } | |
1029 | ||
1030 | if (!ofproto->ofproto_class->set_rstp_port) { | |
1031 | return EOPNOTSUPP; | |
1032 | } | |
1033 | ofproto->ofproto_class->set_rstp_port(ofport, s); | |
1034 | return 0; | |
1035 | } | |
1036 | ||
1037 | /* Retrieves RSTP port status of 'ofp_port' on 'ofproto' and stores it in | |
1038 | * 's'. If the 'enabled' member in 's' is false, then the other members | |
1039 | * are not meaningful. | |
1040 | * | |
1041 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
1042 | int | |
1043 | ofproto_port_get_rstp_status(struct ofproto *ofproto, ofp_port_t ofp_port, | |
1044 | struct ofproto_port_rstp_status *s) | |
1045 | { | |
1046 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1047 | if (!ofport) { | |
1048 | VLOG_WARN_RL(&rl, "%s: cannot get RSTP status on nonexistent " | |
1049 | "port %"PRIu16, ofproto->name, ofp_port); | |
1050 | return ENODEV; | |
1051 | } | |
1052 | ||
1053 | if (!ofproto->ofproto_class->get_rstp_port_status) { | |
1054 | return EOPNOTSUPP; | |
1055 | } | |
1056 | ofproto->ofproto_class->get_rstp_port_status(ofport, s); | |
1057 | return 0; | |
1058 | } | |
21f7563c | 1059 | \f |
8b36f51e EJ |
1060 | /* Queue DSCP configuration. */ |
1061 | ||
1062 | /* Registers meta-data associated with the 'n_qdscp' Qualities of Service | |
1063 | * 'queues' attached to 'ofport'. This data is not intended to be sufficient | |
1064 | * to implement QoS. Instead, it is used to implement features which require | |
1065 | * knowledge of what queues exist on a port, and some basic information about | |
1066 | * them. | |
1067 | * | |
1068 | * Returns 0 if successful, otherwise a positive errno value. */ | |
1069 | int | |
4e022ec0 | 1070 | ofproto_port_set_queues(struct ofproto *ofproto, ofp_port_t ofp_port, |
8b36f51e EJ |
1071 | const struct ofproto_port_queue *queues, |
1072 | size_t n_queues) | |
1073 | { | |
1074 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1075 | ||
1076 | if (!ofport) { | |
1077 | VLOG_WARN("%s: cannot set queues on nonexistent port %"PRIu16, | |
1078 | ofproto->name, ofp_port); | |
1079 | return ENODEV; | |
1080 | } | |
1081 | ||
1082 | return (ofproto->ofproto_class->set_queues | |
1083 | ? ofproto->ofproto_class->set_queues(ofport, queues, n_queues) | |
1084 | : EOPNOTSUPP); | |
1085 | } | |
1086 | \f | |
0477baa9 DF |
1087 | /* LLDP configuration. */ |
1088 | void | |
1089 | ofproto_port_set_lldp(struct ofproto *ofproto, | |
1090 | ofp_port_t ofp_port, | |
1091 | const struct smap *cfg) | |
1092 | { | |
1093 | struct ofport *ofport; | |
1094 | int error; | |
1095 | ||
1096 | ofport = ofproto_get_port(ofproto, ofp_port); | |
1097 | if (!ofport) { | |
1098 | VLOG_WARN("%s: cannot configure LLDP on nonexistent port %"PRIu16, | |
1099 | ofproto->name, ofp_port); | |
1100 | return; | |
1101 | } | |
1102 | error = (ofproto->ofproto_class->set_lldp | |
1103 | ? ofproto->ofproto_class->set_lldp(ofport, cfg) | |
1104 | : EOPNOTSUPP); | |
1105 | if (error) { | |
1106 | VLOG_WARN("%s: lldp configuration on port %"PRIu16" (%s) failed (%s)", | |
1107 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), | |
1108 | ovs_strerror(error)); | |
1109 | } | |
1110 | } | |
1111 | ||
1112 | int | |
1113 | ofproto_set_aa(struct ofproto *ofproto, void *aux OVS_UNUSED, | |
1114 | const struct aa_settings *s) | |
1115 | { | |
1116 | if (!ofproto->ofproto_class->set_aa) { | |
1117 | return EOPNOTSUPP; | |
1118 | } | |
1119 | ofproto->ofproto_class->set_aa(ofproto, s); | |
1120 | return 0; | |
1121 | } | |
1122 | ||
1123 | int | |
1124 | ofproto_aa_mapping_register(struct ofproto *ofproto, void *aux, | |
1125 | const struct aa_mapping_settings *s) | |
1126 | { | |
1127 | if (!ofproto->ofproto_class->aa_mapping_set) { | |
1128 | return EOPNOTSUPP; | |
1129 | } | |
1130 | ofproto->ofproto_class->aa_mapping_set(ofproto, aux, s); | |
1131 | return 0; | |
1132 | } | |
1133 | ||
1134 | int | |
1135 | ofproto_aa_mapping_unregister(struct ofproto *ofproto, void *aux) | |
1136 | { | |
1137 | if (!ofproto->ofproto_class->aa_mapping_unset) { | |
1138 | return EOPNOTSUPP; | |
1139 | } | |
1140 | ofproto->ofproto_class->aa_mapping_unset(ofproto, aux); | |
1141 | return 0; | |
1142 | } | |
1143 | ||
1144 | int | |
1145 | ofproto_aa_vlan_get_queued(struct ofproto *ofproto, | |
1146 | struct ovs_list *list) | |
1147 | { | |
1148 | if (!ofproto->ofproto_class->aa_vlan_get_queued) { | |
1149 | return EOPNOTSUPP; | |
1150 | } | |
1151 | ofproto->ofproto_class->aa_vlan_get_queued(ofproto, list); | |
1152 | return 0; | |
1153 | } | |
1154 | ||
1155 | unsigned int | |
1156 | ofproto_aa_vlan_get_queue_size(struct ofproto *ofproto) | |
1157 | { | |
1158 | if (!ofproto->ofproto_class->aa_vlan_get_queue_size) { | |
1159 | return EOPNOTSUPP; | |
1160 | } | |
1161 | return ofproto->ofproto_class->aa_vlan_get_queue_size(ofproto); | |
1162 | } | |
1163 | ||
e7934396 BP |
1164 | /* Connectivity Fault Management configuration. */ |
1165 | ||
892815f5 | 1166 | /* Clears the CFM configuration from 'ofp_port' on 'ofproto'. */ |
e7934396 | 1167 | void |
4e022ec0 | 1168 | ofproto_port_clear_cfm(struct ofproto *ofproto, ofp_port_t ofp_port) |
e7934396 | 1169 | { |
abe529af BP |
1170 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1171 | if (ofport && ofproto->ofproto_class->set_cfm) { | |
a5610457 | 1172 | ofproto->ofproto_class->set_cfm(ofport, NULL); |
e7934396 BP |
1173 | } |
1174 | } | |
72b06300 | 1175 | |
892815f5 | 1176 | /* Configures connectivity fault management on 'ofp_port' in 'ofproto'. Takes |
93b8df38 EJ |
1177 | * basic configuration from the configuration members in 'cfm', and the remote |
1178 | * maintenance point ID from remote_mpid. Ignores the statistics members of | |
1179 | * 'cfm'. | |
e7934396 | 1180 | * |
892815f5 | 1181 | * This function has no effect if 'ofproto' does not have a port 'ofp_port'. */ |
e7934396 | 1182 | void |
4e022ec0 | 1183 | ofproto_port_set_cfm(struct ofproto *ofproto, ofp_port_t ofp_port, |
a5610457 | 1184 | const struct cfm_settings *s) |
e7934396 BP |
1185 | { |
1186 | struct ofport *ofport; | |
abe529af | 1187 | int error; |
e7934396 | 1188 | |
abe529af | 1189 | ofport = ofproto_get_port(ofproto, ofp_port); |
e7934396 | 1190 | if (!ofport) { |
892815f5 BP |
1191 | VLOG_WARN("%s: cannot configure CFM on nonexistent port %"PRIu16, |
1192 | ofproto->name, ofp_port); | |
e7934396 BP |
1193 | return; |
1194 | } | |
1195 | ||
93b8df38 EJ |
1196 | /* XXX: For configuration simplicity, we only support one remote_mpid |
1197 | * outside of the CFM module. It's not clear if this is the correct long | |
1198 | * term solution or not. */ | |
abe529af | 1199 | error = (ofproto->ofproto_class->set_cfm |
a5610457 | 1200 | ? ofproto->ofproto_class->set_cfm(ofport, s) |
abe529af BP |
1201 | : EOPNOTSUPP); |
1202 | if (error) { | |
1203 | VLOG_WARN("%s: CFM configuration on port %"PRIu16" (%s) failed (%s)", | |
1204 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), | |
10a89ef0 | 1205 | ovs_strerror(error)); |
e7934396 | 1206 | } |
e7934396 | 1207 | } |
e7934396 | 1208 | |
ccc09689 EJ |
1209 | /* Configures BFD on 'ofp_port' in 'ofproto'. This function has no effect if |
1210 | * 'ofproto' does not have a port 'ofp_port'. */ | |
1211 | void | |
4e022ec0 | 1212 | ofproto_port_set_bfd(struct ofproto *ofproto, ofp_port_t ofp_port, |
ccc09689 EJ |
1213 | const struct smap *cfg) |
1214 | { | |
1215 | struct ofport *ofport; | |
1216 | int error; | |
1217 | ||
1218 | ofport = ofproto_get_port(ofproto, ofp_port); | |
1219 | if (!ofport) { | |
1220 | VLOG_WARN("%s: cannot configure bfd on nonexistent port %"PRIu16, | |
1221 | ofproto->name, ofp_port); | |
e8999bdc | 1222 | return; |
ccc09689 EJ |
1223 | } |
1224 | ||
1225 | error = (ofproto->ofproto_class->set_bfd | |
1226 | ? ofproto->ofproto_class->set_bfd(ofport, cfg) | |
1227 | : EOPNOTSUPP); | |
1228 | if (error) { | |
1229 | VLOG_WARN("%s: bfd configuration on port %"PRIu16" (%s) failed (%s)", | |
1230 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), | |
10a89ef0 | 1231 | ovs_strerror(error)); |
ccc09689 EJ |
1232 | } |
1233 | } | |
1234 | ||
8f5514fe AW |
1235 | /* Checks the status change of BFD on 'ofport'. |
1236 | * | |
1237 | * Returns true if 'ofproto_class' does not support 'bfd_status_changed'. */ | |
1238 | bool | |
1239 | ofproto_port_bfd_status_changed(struct ofproto *ofproto, ofp_port_t ofp_port) | |
1240 | { | |
1241 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1242 | return (ofport && ofproto->ofproto_class->bfd_status_changed | |
1243 | ? ofproto->ofproto_class->bfd_status_changed(ofport) | |
1244 | : true); | |
1245 | } | |
1246 | ||
88bf179a | 1247 | /* Populates 'status' with the status of BFD on 'ofport'. Returns 0 on |
8f5514fe AW |
1248 | * success. Returns a positive errno otherwise. Has no effect if 'ofp_port' |
1249 | * is not an OpenFlow port in 'ofproto'. | |
88bf179a AW |
1250 | * |
1251 | * The caller must provide and own '*status'. */ | |
ccc09689 | 1252 | int |
4e022ec0 | 1253 | ofproto_port_get_bfd_status(struct ofproto *ofproto, ofp_port_t ofp_port, |
ccc09689 EJ |
1254 | struct smap *status) |
1255 | { | |
1256 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1257 | return (ofport && ofproto->ofproto_class->get_bfd_status | |
1258 | ? ofproto->ofproto_class->get_bfd_status(ofport, status) | |
1259 | : EOPNOTSUPP); | |
1260 | } | |
1261 | ||
fa066f01 BP |
1262 | /* Checks the status of LACP negotiation for 'ofp_port' within ofproto. |
1263 | * Returns 1 if LACP partner information for 'ofp_port' is up-to-date, | |
1264 | * 0 if LACP partner information is not current (generally indicating a | |
1265 | * connectivity problem), or -1 if LACP is not enabled on 'ofp_port'. */ | |
1266 | int | |
4e022ec0 | 1267 | ofproto_port_is_lacp_current(struct ofproto *ofproto, ofp_port_t ofp_port) |
fa066f01 | 1268 | { |
abe529af BP |
1269 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1270 | return (ofport && ofproto->ofproto_class->port_is_lacp_current | |
1271 | ? ofproto->ofproto_class->port_is_lacp_current(ofport) | |
fa066f01 | 1272 | : -1); |
e7934396 | 1273 | } |
50b9699f NM |
1274 | |
1275 | int | |
1276 | ofproto_port_get_lacp_stats(const struct ofport *port, struct lacp_slave_stats *stats) | |
1277 | { | |
1278 | struct ofproto *ofproto = port->ofproto; | |
1279 | int error; | |
1280 | ||
1281 | if (ofproto->ofproto_class->port_get_lacp_stats) { | |
1282 | error = ofproto->ofproto_class->port_get_lacp_stats(port, stats); | |
1283 | } else { | |
1284 | error = EOPNOTSUPP; | |
1285 | } | |
1286 | ||
1287 | return error; | |
1288 | } | |
e7934396 | 1289 | \f |
fa066f01 | 1290 | /* Bundles. */ |
e7934396 | 1291 | |
abe529af BP |
1292 | /* Registers a "bundle" associated with client data pointer 'aux' in 'ofproto'. |
1293 | * A bundle is the same concept as a Port in OVSDB, that is, it consists of one | |
1294 | * or more "slave" devices (Interfaces, in OVSDB) along with a VLAN | |
1295 | * configuration plus, if there is more than one slave, a bonding | |
1296 | * configuration. | |
1297 | * | |
1298 | * If 'aux' is already registered then this function updates its configuration | |
1299 | * to 's'. Otherwise, this function registers a new bundle. | |
1300 | * | |
1301 | * Bundles only affect the NXAST_AUTOPATH action and output to the OFPP_NORMAL | |
1302 | * port. */ | |
1303 | int | |
1304 | ofproto_bundle_register(struct ofproto *ofproto, void *aux, | |
1305 | const struct ofproto_bundle_settings *s) | |
fa066f01 | 1306 | { |
abe529af BP |
1307 | return (ofproto->ofproto_class->bundle_set |
1308 | ? ofproto->ofproto_class->bundle_set(ofproto, aux, s) | |
1309 | : EOPNOTSUPP); | |
fa066f01 BP |
1310 | } |
1311 | ||
abe529af BP |
1312 | /* Unregisters the bundle registered on 'ofproto' with auxiliary data 'aux'. |
1313 | * If no such bundle has been registered, this has no effect. */ | |
1314 | int | |
1315 | ofproto_bundle_unregister(struct ofproto *ofproto, void *aux) | |
e7934396 | 1316 | { |
abe529af | 1317 | return ofproto_bundle_register(ofproto, aux, NULL); |
e7934396 | 1318 | } |
fa066f01 | 1319 | |
e7934396 | 1320 | \f |
abe529af BP |
1321 | /* Registers a mirror associated with client data pointer 'aux' in 'ofproto'. |
1322 | * If 'aux' is already registered then this function updates its configuration | |
c06bba01 | 1323 | * to 's'. Otherwise, this function registers a new mirror. */ |
abe529af BP |
1324 | int |
1325 | ofproto_mirror_register(struct ofproto *ofproto, void *aux, | |
1326 | const struct ofproto_mirror_settings *s) | |
064af421 | 1327 | { |
abe529af BP |
1328 | return (ofproto->ofproto_class->mirror_set |
1329 | ? ofproto->ofproto_class->mirror_set(ofproto, aux, s) | |
1330 | : EOPNOTSUPP); | |
064af421 BP |
1331 | } |
1332 | ||
abe529af BP |
1333 | /* Unregisters the mirror registered on 'ofproto' with auxiliary data 'aux'. |
1334 | * If no mirror has been registered, this has no effect. */ | |
1335 | int | |
1336 | ofproto_mirror_unregister(struct ofproto *ofproto, void *aux) | |
064af421 | 1337 | { |
abe529af | 1338 | return ofproto_mirror_register(ofproto, aux, NULL); |
064af421 BP |
1339 | } |
1340 | ||
9d24de3b JP |
1341 | /* Retrieves statistics from mirror associated with client data pointer |
1342 | * 'aux' in 'ofproto'. Stores packet and byte counts in 'packets' and | |
1343 | * 'bytes', respectively. If a particular counters is not supported, | |
0477baa9 DF |
1344 | * the appropriate argument is set to UINT64_MAX. |
1345 | */ | |
9d24de3b JP |
1346 | int |
1347 | ofproto_mirror_get_stats(struct ofproto *ofproto, void *aux, | |
1348 | uint64_t *packets, uint64_t *bytes) | |
1349 | { | |
1350 | if (!ofproto->ofproto_class->mirror_get_stats) { | |
1351 | *packets = *bytes = UINT64_MAX; | |
1352 | return EOPNOTSUPP; | |
1353 | } | |
1354 | ||
1355 | return ofproto->ofproto_class->mirror_get_stats(ofproto, aux, | |
1356 | packets, bytes); | |
1357 | } | |
1358 | ||
abe529af BP |
1359 | /* Configures the VLANs whose bits are set to 1 in 'flood_vlans' as VLANs on |
1360 | * which all packets are flooded, instead of using MAC learning. If | |
1361 | * 'flood_vlans' is NULL, then MAC learning applies to all VLANs. | |
1362 | * | |
1363 | * Flood VLANs affect only the treatment of packets output to the OFPP_NORMAL | |
1364 | * port. */ | |
1365 | int | |
1366 | ofproto_set_flood_vlans(struct ofproto *ofproto, unsigned long *flood_vlans) | |
abdfe474 | 1367 | { |
abe529af BP |
1368 | return (ofproto->ofproto_class->set_flood_vlans |
1369 | ? ofproto->ofproto_class->set_flood_vlans(ofproto, flood_vlans) | |
1370 | : EOPNOTSUPP); | |
abdfe474 JP |
1371 | } |
1372 | ||
abe529af BP |
1373 | /* Returns true if 'aux' is a registered bundle that is currently in use as the |
1374 | * output for a mirror. */ | |
1375 | bool | |
b4affc74 | 1376 | ofproto_is_mirror_output_bundle(const struct ofproto *ofproto, void *aux) |
abe529af BP |
1377 | { |
1378 | return (ofproto->ofproto_class->is_mirror_output_bundle | |
1379 | ? ofproto->ofproto_class->is_mirror_output_bundle(ofproto, aux) | |
1380 | : false); | |
1381 | } | |
1382 | \f | |
254750ce BP |
1383 | /* Configuration of OpenFlow tables. */ |
1384 | ||
1385 | /* Returns the number of OpenFlow tables in 'ofproto'. */ | |
1386 | int | |
1387 | ofproto_get_n_tables(const struct ofproto *ofproto) | |
1388 | { | |
1389 | return ofproto->n_tables; | |
1390 | } | |
1391 | ||
adcf00ba AZ |
1392 | /* Returns the number of Controller visible OpenFlow tables |
1393 | * in 'ofproto'. This number will exclude Hidden tables. | |
1394 | * This funtion's return value should be less or equal to that of | |
1395 | * ofproto_get_n_tables() . */ | |
1396 | uint8_t | |
1397 | ofproto_get_n_visible_tables(const struct ofproto *ofproto) | |
1398 | { | |
1399 | uint8_t n = ofproto->n_tables; | |
1400 | ||
1401 | /* Count only non-hidden tables in the number of tables. (Hidden tables, | |
1402 | * if present, are always at the end.) */ | |
1403 | while(n && (ofproto->tables[n - 1].flags & OFTABLE_HIDDEN)) { | |
1404 | n--; | |
1405 | } | |
1406 | ||
1407 | return n; | |
1408 | } | |
1409 | ||
254750ce BP |
1410 | /* Configures the OpenFlow table in 'ofproto' with id 'table_id' with the |
1411 | * settings from 's'. 'table_id' must be in the range 0 through the number of | |
1412 | * OpenFlow tables in 'ofproto' minus 1, inclusive. | |
1413 | * | |
1414 | * For read-only tables, only the name may be configured. */ | |
1415 | void | |
1416 | ofproto_configure_table(struct ofproto *ofproto, int table_id, | |
1417 | const struct ofproto_table_settings *s) | |
1418 | { | |
1419 | struct oftable *table; | |
1420 | ||
cb22974d | 1421 | ovs_assert(table_id >= 0 && table_id < ofproto->n_tables); |
254750ce BP |
1422 | table = &ofproto->tables[table_id]; |
1423 | ||
1424 | oftable_set_name(table, s->name); | |
1425 | ||
1426 | if (table->flags & OFTABLE_READONLY) { | |
1427 | return; | |
1428 | } | |
1429 | ||
f358a2cb JR |
1430 | if (classifier_set_prefix_fields(&table->cls, |
1431 | s->prefix_fields, s->n_prefix_fields)) { | |
1432 | /* XXX: Trigger revalidation. */ | |
1433 | } | |
834fe5cb BP |
1434 | |
1435 | ovs_mutex_lock(&ofproto_mutex); | |
82c22d34 BP |
1436 | unsigned int new_eviction = (s->enable_eviction |
1437 | ? table->eviction | EVICTION_CLIENT | |
1438 | : table->eviction & ~EVICTION_CLIENT); | |
1439 | oftable_configure_eviction(table, new_eviction, s->groups, s->n_groups); | |
7394b8fb | 1440 | table->max_flows = s->max_flows; |
6787a49f | 1441 | evict_rules_from_table(table); |
834fe5cb | 1442 | ovs_mutex_unlock(&ofproto_mutex); |
254750ce BP |
1443 | } |
1444 | \f | |
81e2083f BP |
1445 | bool |
1446 | ofproto_has_snoops(const struct ofproto *ofproto) | |
1447 | { | |
1448 | return connmgr_has_snoops(ofproto->connmgr); | |
1449 | } | |
1450 | ||
064af421 | 1451 | void |
81e2083f | 1452 | ofproto_get_snoops(const struct ofproto *ofproto, struct sset *snoops) |
064af421 | 1453 | { |
19a87e36 | 1454 | connmgr_get_snoops(ofproto->connmgr, snoops); |
064af421 BP |
1455 | } |
1456 | ||
a73fcd71 | 1457 | /* Deletes 'rule' from 'ofproto'. |
8037acb4 | 1458 | * |
b74cb5d8 BP |
1459 | * Within an ofproto implementation, this function allows an ofproto |
1460 | * implementation to destroy any rules that remain when its ->destruct() | |
1461 | * function is called. This function is not suitable for use elsewhere in an | |
1462 | * ofproto implementation. | |
1463 | * | |
b74cb5d8 | 1464 | * This function implements steps 4.4 and 4.5 in the section titled "Rule Life |
8b81d1ef | 1465 | * Cycle" in ofproto-provider.h. */ |
b74cb5d8 | 1466 | void |
8b81d1ef | 1467 | ofproto_rule_delete(struct ofproto *ofproto, struct rule *rule) |
15aaf599 | 1468 | OVS_EXCLUDED(ofproto_mutex) |
7ee20df1 | 1469 | { |
834fe5cb BP |
1470 | /* This skips the ofmonitor and flow-removed notifications because the |
1471 | * switch is being deleted and any OpenFlow channels have been or soon will | |
1472 | * be killed. */ | |
15aaf599 | 1473 | ovs_mutex_lock(&ofproto_mutex); |
39c94593 JR |
1474 | |
1475 | if (!rule->removed) { | |
1476 | /* Make sure there is no postponed removal of the rule. */ | |
1477 | ovs_assert(cls_rule_visible_in_version(&rule->cr, CLS_MAX_VERSION)); | |
1478 | ||
1479 | if (!classifier_remove(&rule->ofproto->tables[rule->table_id].cls, | |
1480 | &rule->cr)) { | |
1481 | OVS_NOT_REACHED(); | |
1482 | } | |
1483 | ofproto_rule_remove__(rule->ofproto, rule); | |
1484 | ofproto->ofproto_class->rule_delete(rule); | |
1485 | ofproto_rule_unref(rule); | |
1486 | } | |
15aaf599 | 1487 | ovs_mutex_unlock(&ofproto_mutex); |
8037acb4 BP |
1488 | } |
1489 | ||
1490 | static void | |
1491 | ofproto_flush__(struct ofproto *ofproto) | |
15aaf599 | 1492 | OVS_EXCLUDED(ofproto_mutex) |
8037acb4 | 1493 | { |
d0918789 | 1494 | struct oftable *table; |
7ee20df1 | 1495 | |
3948503a | 1496 | /* This will flush all datapath flows. */ |
7ee20df1 BP |
1497 | if (ofproto->ofproto_class->flush) { |
1498 | ofproto->ofproto_class->flush(ofproto); | |
1499 | } | |
1500 | ||
3948503a JR |
1501 | /* XXX: There is a small race window here, where new datapath flows can be |
1502 | * created by upcall handlers based on the existing flow table. We can not | |
1503 | * call ofproto class flush while holding 'ofproto_mutex' to prevent this, | |
1504 | * as then we could deadlock on syncing with the handler threads waiting on | |
1505 | * the same mutex. */ | |
1506 | ||
15aaf599 | 1507 | ovs_mutex_lock(&ofproto_mutex); |
b772ded8 | 1508 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
802f84ff | 1509 | struct rule_collection rules; |
78c8df12 | 1510 | struct rule *rule; |
7ee20df1 | 1511 | |
5c67e4af BP |
1512 | if (table->flags & OFTABLE_HIDDEN) { |
1513 | continue; | |
1514 | } | |
1515 | ||
802f84ff JR |
1516 | rule_collection_init(&rules); |
1517 | ||
de4ad4a2 | 1518 | CLS_FOR_EACH (rule, cr, &table->cls) { |
802f84ff | 1519 | rule_collection_add(&rules, rule); |
7ee20df1 | 1520 | } |
802f84ff | 1521 | delete_flows__(&rules, OFPRR_DELETE, NULL); |
7ee20df1 | 1522 | } |
3948503a JR |
1523 | /* XXX: Concurrent handler threads may insert new learned flows based on |
1524 | * learn actions of the now deleted flows right after we release | |
1525 | * 'ofproto_mutex'. */ | |
15aaf599 | 1526 | ovs_mutex_unlock(&ofproto_mutex); |
7ee20df1 BP |
1527 | } |
1528 | ||
7395c052 NZ |
1529 | static void delete_group(struct ofproto *ofproto, uint32_t group_id); |
1530 | ||
abe529af BP |
1531 | static void |
1532 | ofproto_destroy__(struct ofproto *ofproto) | |
15aaf599 | 1533 | OVS_EXCLUDED(ofproto_mutex) |
abe529af | 1534 | { |
d0918789 | 1535 | struct oftable *table; |
6c1491fb | 1536 | |
35412852 | 1537 | destroy_rule_executes(ofproto); |
5c09b672 GS |
1538 | |
1539 | guarded_list_destroy(&ofproto->rule_executes); | |
7395c052 NZ |
1540 | ovs_rwlock_destroy(&ofproto->groups_rwlock); |
1541 | hmap_destroy(&ofproto->groups); | |
1542 | ||
abe529af BP |
1543 | hmap_remove(&all_ofprotos, &ofproto->hmap_node); |
1544 | free(ofproto->name); | |
955a7127 | 1545 | free(ofproto->type); |
abe529af BP |
1546 | free(ofproto->mfr_desc); |
1547 | free(ofproto->hw_desc); | |
1548 | free(ofproto->sw_desc); | |
1549 | free(ofproto->serial_desc); | |
1550 | free(ofproto->dp_desc); | |
abe529af | 1551 | hmap_destroy(&ofproto->ports); |
fdcea803 | 1552 | hmap_destroy(&ofproto->ofport_usage); |
abe529af | 1553 | shash_destroy(&ofproto->port_by_name); |
e1b1d06a | 1554 | simap_destroy(&ofproto->ofp_requests); |
6c1491fb | 1555 | |
b772ded8 | 1556 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
d0918789 | 1557 | oftable_destroy(table); |
6c1491fb BP |
1558 | } |
1559 | free(ofproto->tables); | |
fa066f01 | 1560 | |
1406c79b BP |
1561 | ovs_assert(hindex_is_empty(&ofproto->cookies)); |
1562 | hindex_destroy(&ofproto->cookies); | |
1563 | ||
35f48b8b BP |
1564 | ovs_assert(hmap_is_empty(&ofproto->learned_cookies)); |
1565 | hmap_destroy(&ofproto->learned_cookies); | |
1566 | ||
52a90c29 BP |
1567 | free(ofproto->vlan_bitmap); |
1568 | ||
abe529af BP |
1569 | ofproto->ofproto_class->dealloc(ofproto); |
1570 | } | |
fa066f01 | 1571 | |
39c94593 JR |
1572 | /* Destroying rules is doubly deferred, must have 'ofproto' around for them. |
1573 | * - 1st we defer the removal of the rules from the classifier | |
1574 | * - 2nd we defer the actual destruction of the rules. */ | |
1575 | static void | |
1576 | ofproto_destroy_defer__(struct ofproto *ofproto) | |
1577 | OVS_EXCLUDED(ofproto_mutex) | |
1578 | { | |
1579 | ovsrcu_postpone(ofproto_destroy__, ofproto); | |
1580 | } | |
1581 | ||
064af421 BP |
1582 | void |
1583 | ofproto_destroy(struct ofproto *p) | |
15aaf599 | 1584 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 1585 | { |
ca0f572c | 1586 | struct ofport *ofport, *next_ofport; |
fdcea803 | 1587 | struct ofport_usage *usage, *next_usage; |
064af421 BP |
1588 | |
1589 | if (!p) { | |
1590 | return; | |
1591 | } | |
1592 | ||
717de9ff JR |
1593 | if (p->meters) { |
1594 | meter_delete(p, 1, p->meter_features.max_meters); | |
1595 | p->meter_features.max_meters = 0; | |
1596 | free(p->meters); | |
1597 | p->meters = NULL; | |
1598 | } | |
1599 | ||
7ee20df1 | 1600 | ofproto_flush__(p); |
4e8e4213 | 1601 | HMAP_FOR_EACH_SAFE (ofport, next_ofport, hmap_node, &p->ports) { |
abe529af | 1602 | ofport_destroy(ofport); |
064af421 | 1603 | } |
064af421 | 1604 | |
fdcea803 GS |
1605 | HMAP_FOR_EACH_SAFE (usage, next_usage, hmap_node, &p->ofport_usage) { |
1606 | hmap_remove(&p->ofport_usage, &usage->hmap_node); | |
1607 | free(usage); | |
1608 | } | |
1609 | ||
abe529af | 1610 | p->ofproto_class->destruct(p); |
58f19539 DDP |
1611 | |
1612 | /* We should not postpone this because it involves deleting a listening | |
1613 | * socket which we may want to reopen soon. 'connmgr' should not be used | |
1614 | * by other threads */ | |
1615 | connmgr_destroy(p->connmgr); | |
1616 | ||
f416c8d6 | 1617 | /* Destroying rules is deferred, must have 'ofproto' around for them. */ |
39c94593 | 1618 | ovsrcu_postpone(ofproto_destroy_defer__, p); |
064af421 BP |
1619 | } |
1620 | ||
abe529af BP |
1621 | /* Destroys the datapath with the respective 'name' and 'type'. With the Linux |
1622 | * kernel datapath, for example, this destroys the datapath in the kernel, and | |
1623 | * with the netdev-based datapath, it tears down the data structures that | |
1624 | * represent the datapath. | |
1625 | * | |
1626 | * The datapath should not be currently open as an ofproto. */ | |
064af421 | 1627 | int |
abe529af | 1628 | ofproto_delete(const char *name, const char *type) |
064af421 | 1629 | { |
abe529af BP |
1630 | const struct ofproto_class *class = ofproto_class_find__(type); |
1631 | return (!class ? EAFNOSUPPORT | |
1632 | : !class->del ? EACCES | |
1633 | : class->del(type, name)); | |
064af421 BP |
1634 | } |
1635 | ||
e9e28be3 BP |
1636 | static void |
1637 | process_port_change(struct ofproto *ofproto, int error, char *devname) | |
1638 | { | |
1639 | if (error == ENOBUFS) { | |
1640 | reinit_ports(ofproto); | |
1641 | } else if (!error) { | |
1642 | update_port(ofproto, devname); | |
1643 | free(devname); | |
1644 | } | |
1645 | } | |
1646 | ||
11a574a7 JP |
1647 | int |
1648 | ofproto_type_run(const char *datapath_type) | |
1649 | { | |
1650 | const struct ofproto_class *class; | |
1651 | int error; | |
1652 | ||
1653 | datapath_type = ofproto_normalize_type(datapath_type); | |
1654 | class = ofproto_class_find__(datapath_type); | |
1655 | ||
1656 | error = class->type_run ? class->type_run(datapath_type) : 0; | |
1657 | if (error && error != EAGAIN) { | |
1658 | VLOG_ERR_RL(&rl, "%s: type_run failed (%s)", | |
10a89ef0 | 1659 | datapath_type, ovs_strerror(error)); |
11a574a7 JP |
1660 | } |
1661 | return error; | |
1662 | } | |
1663 | ||
11a574a7 JP |
1664 | void |
1665 | ofproto_type_wait(const char *datapath_type) | |
1666 | { | |
1667 | const struct ofproto_class *class; | |
1668 | ||
1669 | datapath_type = ofproto_normalize_type(datapath_type); | |
1670 | class = ofproto_class_find__(datapath_type); | |
1671 | ||
1672 | if (class->type_wait) { | |
1673 | class->type_wait(datapath_type); | |
1674 | } | |
1675 | } | |
1676 | ||
064af421 | 1677 | int |
abe529af | 1678 | ofproto_run(struct ofproto *p) |
064af421 | 1679 | { |
064af421 | 1680 | int error; |
da4a6191 | 1681 | uint64_t new_seq; |
064af421 | 1682 | |
abe529af | 1683 | error = p->ofproto_class->run(p); |
5fcc0d00 | 1684 | if (error && error != EAGAIN) { |
10a89ef0 | 1685 | VLOG_ERR_RL(&rl, "%s: run failed (%s)", p->name, ovs_strerror(error)); |
149f577a JG |
1686 | } |
1687 | ||
35412852 BP |
1688 | run_rule_executes(p); |
1689 | ||
448c2fa8 EJ |
1690 | /* Restore the eviction group heap invariant occasionally. */ |
1691 | if (p->eviction_group_timer < time_msec()) { | |
1692 | size_t i; | |
1693 | ||
1694 | p->eviction_group_timer = time_msec() + 1000; | |
1695 | ||
1696 | for (i = 0; i < p->n_tables; i++) { | |
1697 | struct oftable *table = &p->tables[i]; | |
1698 | struct eviction_group *evg; | |
448c2fa8 EJ |
1699 | struct rule *rule; |
1700 | ||
82c22d34 | 1701 | if (!table->eviction) { |
448c2fa8 EJ |
1702 | continue; |
1703 | } | |
1704 | ||
d79e3d70 | 1705 | if (table->n_flows > 100000) { |
1a9bb326 EJ |
1706 | static struct vlog_rate_limit count_rl = |
1707 | VLOG_RATE_LIMIT_INIT(1, 1); | |
1708 | VLOG_WARN_RL(&count_rl, "Table %"PRIuSIZE" has an excessive" | |
d79e3d70 | 1709 | " number of rules: %d", i, table->n_flows); |
1a9bb326 EJ |
1710 | } |
1711 | ||
15aaf599 | 1712 | ovs_mutex_lock(&ofproto_mutex); |
5f0476ce | 1713 | CLS_FOR_EACH (rule, cr, &table->cls) { |
6d56c1f1 K |
1714 | if (rule->idle_timeout || rule->hard_timeout) { |
1715 | if (!rule->eviction_group) { | |
1716 | eviction_group_add_rule(rule); | |
1717 | } else { | |
1718 | heap_raw_change(&rule->evg_node, | |
1719 | rule_eviction_priority(p, rule)); | |
1720 | } | |
448c2fa8 EJ |
1721 | } |
1722 | } | |
6d56c1f1 K |
1723 | |
1724 | HEAP_FOR_EACH (evg, size_node, &table->eviction_groups_by_size) { | |
1725 | heap_rebuild(&evg->rules); | |
1726 | } | |
15aaf599 | 1727 | ovs_mutex_unlock(&ofproto_mutex); |
448c2fa8 EJ |
1728 | } |
1729 | } | |
1730 | ||
5bf0e941 | 1731 | if (p->ofproto_class->port_poll) { |
7436ed80 BP |
1732 | char *devname; |
1733 | ||
5bf0e941 BP |
1734 | while ((error = p->ofproto_class->port_poll(p, &devname)) != EAGAIN) { |
1735 | process_port_change(p, error, devname); | |
064af421 | 1736 | } |
e9e28be3 | 1737 | } |
031d8bff | 1738 | |
da4a6191 JS |
1739 | new_seq = seq_read(connectivity_seq_get()); |
1740 | if (new_seq != p->change_seq) { | |
1741 | struct sset devnames; | |
1742 | const char *devname; | |
1743 | struct ofport *ofport; | |
1744 | ||
1745 | /* Update OpenFlow port status for any port whose netdev has changed. | |
1746 | * | |
1747 | * Refreshing a given 'ofport' can cause an arbitrary ofport to be | |
1748 | * destroyed, so it's not safe to update ports directly from the | |
1749 | * HMAP_FOR_EACH loop, or even to use HMAP_FOR_EACH_SAFE. Instead, we | |
1750 | * need this two-phase approach. */ | |
1751 | sset_init(&devnames); | |
1752 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
61501798 AW |
1753 | uint64_t port_change_seq; |
1754 | ||
1755 | port_change_seq = netdev_get_change_seq(ofport->netdev); | |
1756 | if (ofport->change_seq != port_change_seq) { | |
1757 | ofport->change_seq = port_change_seq; | |
1758 | sset_add(&devnames, netdev_get_name(ofport->netdev)); | |
1759 | } | |
031d8bff | 1760 | } |
da4a6191 JS |
1761 | SSET_FOR_EACH (devname, &devnames) { |
1762 | update_port(p, devname); | |
1763 | } | |
1764 | sset_destroy(&devnames); | |
1765 | ||
1766 | p->change_seq = new_seq; | |
064af421 BP |
1767 | } |
1768 | ||
834fe5cb | 1769 | connmgr_run(p->connmgr, handle_openflow); |
064af421 | 1770 | |
5fcc0d00 BP |
1771 | return error; |
1772 | } | |
1773 | ||
064af421 BP |
1774 | void |
1775 | ofproto_wait(struct ofproto *p) | |
1776 | { | |
abe529af | 1777 | p->ofproto_class->wait(p); |
5bf0e941 BP |
1778 | if (p->ofproto_class->port_poll_wait) { |
1779 | p->ofproto_class->port_poll_wait(p); | |
e7934396 | 1780 | } |
da4a6191 | 1781 | seq_wait(connectivity_seq_get(), p->change_seq); |
834fe5cb | 1782 | connmgr_wait(p->connmgr); |
064af421 BP |
1783 | } |
1784 | ||
064af421 BP |
1785 | bool |
1786 | ofproto_is_alive(const struct ofproto *p) | |
1787 | { | |
19a87e36 | 1788 | return connmgr_has_controllers(p->connmgr); |
064af421 BP |
1789 | } |
1790 | ||
0d085684 BP |
1791 | /* Adds some memory usage statistics for 'ofproto' into 'usage', for use with |
1792 | * memory_report(). */ | |
1793 | void | |
1794 | ofproto_get_memory_usage(const struct ofproto *ofproto, struct simap *usage) | |
1795 | { | |
1796 | const struct oftable *table; | |
1797 | unsigned int n_rules; | |
1798 | ||
1799 | simap_increase(usage, "ports", hmap_count(&ofproto->ports)); | |
15aaf599 | 1800 | |
0d085684 BP |
1801 | n_rules = 0; |
1802 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { | |
d79e3d70 | 1803 | n_rules += table->n_flows; |
0d085684 BP |
1804 | } |
1805 | simap_increase(usage, "rules", n_rules); | |
1806 | ||
1807 | if (ofproto->ofproto_class->get_memory_usage) { | |
1808 | ofproto->ofproto_class->get_memory_usage(ofproto, usage); | |
1809 | } | |
1810 | ||
1811 | connmgr_get_memory_usage(ofproto->connmgr, usage); | |
1812 | } | |
1813 | ||
1c030aa5 EJ |
1814 | void |
1815 | ofproto_type_get_memory_usage(const char *datapath_type, struct simap *usage) | |
1816 | { | |
1817 | const struct ofproto_class *class; | |
1818 | ||
1819 | datapath_type = ofproto_normalize_type(datapath_type); | |
1820 | class = ofproto_class_find__(datapath_type); | |
1821 | ||
1822 | if (class && class->type_get_memory_usage) { | |
1823 | class->type_get_memory_usage(datapath_type, usage); | |
1824 | } | |
1825 | } | |
1826 | ||
bffc0589 | 1827 | void |
2cdcb898 | 1828 | ofproto_get_ofproto_controller_info(const struct ofproto *ofproto, |
bffc0589 AE |
1829 | struct shash *info) |
1830 | { | |
19a87e36 | 1831 | connmgr_get_controller_info(ofproto->connmgr, info); |
bffc0589 AE |
1832 | } |
1833 | ||
1834 | void | |
1835 | ofproto_free_ofproto_controller_info(struct shash *info) | |
1836 | { | |
72ba2ed3 | 1837 | connmgr_free_controller_info(info); |
bffc0589 AE |
1838 | } |
1839 | ||
b5827b24 BP |
1840 | /* Makes a deep copy of 'old' into 'port'. */ |
1841 | void | |
1842 | ofproto_port_clone(struct ofproto_port *port, const struct ofproto_port *old) | |
1843 | { | |
1844 | port->name = xstrdup(old->name); | |
1845 | port->type = xstrdup(old->type); | |
1846 | port->ofp_port = old->ofp_port; | |
1847 | } | |
1848 | ||
1849 | /* Frees memory allocated to members of 'ofproto_port'. | |
3a6ccc8c | 1850 | * |
b5827b24 BP |
1851 | * Do not call this function on an ofproto_port obtained from |
1852 | * ofproto_port_dump_next(): that function retains ownership of the data in the | |
1853 | * ofproto_port. */ | |
1854 | void | |
1855 | ofproto_port_destroy(struct ofproto_port *ofproto_port) | |
1856 | { | |
1857 | free(ofproto_port->name); | |
1858 | free(ofproto_port->type); | |
1859 | } | |
1860 | ||
b5827b24 | 1861 | /* Initializes 'dump' to begin dumping the ports in an ofproto. |
3a6ccc8c | 1862 | * |
b5827b24 BP |
1863 | * This function provides no status indication. An error status for the entire |
1864 | * dump operation is provided when it is completed by calling | |
1865 | * ofproto_port_dump_done(). | |
1866 | */ | |
1867 | void | |
1868 | ofproto_port_dump_start(struct ofproto_port_dump *dump, | |
1869 | const struct ofproto *ofproto) | |
1870 | { | |
abe529af BP |
1871 | dump->ofproto = ofproto; |
1872 | dump->error = ofproto->ofproto_class->port_dump_start(ofproto, | |
1873 | &dump->state); | |
b5827b24 BP |
1874 | } |
1875 | ||
1876 | /* Attempts to retrieve another port from 'dump', which must have been created | |
1877 | * with ofproto_port_dump_start(). On success, stores a new ofproto_port into | |
1878 | * 'port' and returns true. On failure, returns false. | |
1879 | * | |
1880 | * Failure might indicate an actual error or merely that the last port has been | |
1881 | * dumped. An error status for the entire dump operation is provided when it | |
1882 | * is completed by calling ofproto_port_dump_done(). | |
1883 | * | |
1884 | * The ofproto owns the data stored in 'port'. It will remain valid until at | |
1885 | * least the next time 'dump' is passed to ofproto_port_dump_next() or | |
1886 | * ofproto_port_dump_done(). */ | |
1887 | bool | |
1888 | ofproto_port_dump_next(struct ofproto_port_dump *dump, | |
1889 | struct ofproto_port *port) | |
1890 | { | |
abe529af BP |
1891 | const struct ofproto *ofproto = dump->ofproto; |
1892 | ||
1893 | if (dump->error) { | |
1894 | return false; | |
1895 | } | |
b5827b24 | 1896 | |
abe529af BP |
1897 | dump->error = ofproto->ofproto_class->port_dump_next(ofproto, dump->state, |
1898 | port); | |
1899 | if (dump->error) { | |
1900 | ofproto->ofproto_class->port_dump_done(ofproto, dump->state); | |
1901 | return false; | |
b5827b24 | 1902 | } |
abe529af | 1903 | return true; |
b5827b24 BP |
1904 | } |
1905 | ||
1906 | /* Completes port table dump operation 'dump', which must have been created | |
1907 | * with ofproto_port_dump_start(). Returns 0 if the dump operation was | |
1908 | * error-free, otherwise a positive errno value describing the problem. */ | |
3a6ccc8c | 1909 | int |
b5827b24 | 1910 | ofproto_port_dump_done(struct ofproto_port_dump *dump) |
3a6ccc8c | 1911 | { |
abe529af BP |
1912 | const struct ofproto *ofproto = dump->ofproto; |
1913 | if (!dump->error) { | |
1914 | dump->error = ofproto->ofproto_class->port_dump_done(ofproto, | |
1915 | dump->state); | |
1916 | } | |
1917 | return dump->error == EOF ? 0 : dump->error; | |
b5827b24 BP |
1918 | } |
1919 | ||
0aeaabc8 JP |
1920 | /* Returns the type to pass to netdev_open() when a datapath of type |
1921 | * 'datapath_type' has a port of type 'port_type', for a few special | |
1922 | * cases when a netdev type differs from a port type. For example, when | |
1923 | * using the userspace datapath, a port of type "internal" needs to be | |
1924 | * opened as "tap". | |
1925 | * | |
1926 | * Returns either 'type' itself or a string literal, which must not be | |
1927 | * freed. */ | |
1928 | const char * | |
1929 | ofproto_port_open_type(const char *datapath_type, const char *port_type) | |
1930 | { | |
1931 | const struct ofproto_class *class; | |
1932 | ||
1933 | datapath_type = ofproto_normalize_type(datapath_type); | |
1934 | class = ofproto_class_find__(datapath_type); | |
1935 | if (!class) { | |
1936 | return port_type; | |
1937 | } | |
1938 | ||
1939 | return (class->port_open_type | |
1940 | ? class->port_open_type(datapath_type, port_type) | |
1941 | : port_type); | |
1942 | } | |
1943 | ||
81816a5f JP |
1944 | /* Attempts to add 'netdev' as a port on 'ofproto'. If 'ofp_portp' is |
1945 | * non-null and '*ofp_portp' is not OFPP_NONE, attempts to use that as | |
1946 | * the port's OpenFlow port number. | |
1947 | * | |
1948 | * If successful, returns 0 and sets '*ofp_portp' to the new port's | |
1949 | * OpenFlow port number (if 'ofp_portp' is non-null). On failure, | |
1950 | * returns a positive errno value and sets '*ofp_portp' to OFPP_NONE (if | |
1951 | * 'ofp_portp' is non-null). */ | |
b5827b24 BP |
1952 | int |
1953 | ofproto_port_add(struct ofproto *ofproto, struct netdev *netdev, | |
4e022ec0 | 1954 | ofp_port_t *ofp_portp) |
b5827b24 | 1955 | { |
4e022ec0 | 1956 | ofp_port_t ofp_port = ofp_portp ? *ofp_portp : OFPP_NONE; |
3a6ccc8c BP |
1957 | int error; |
1958 | ||
e1b1d06a | 1959 | error = ofproto->ofproto_class->port_add(ofproto, netdev); |
1fa24dea | 1960 | if (!error) { |
e1b1d06a JP |
1961 | const char *netdev_name = netdev_get_name(netdev); |
1962 | ||
4e022ec0 AW |
1963 | simap_put(&ofproto->ofp_requests, netdev_name, |
1964 | ofp_to_u16(ofp_port)); | |
e1b1d06a | 1965 | update_port(ofproto, netdev_name); |
1fa24dea | 1966 | } |
b5827b24 | 1967 | if (ofp_portp) { |
17f69db5 BP |
1968 | *ofp_portp = OFPP_NONE; |
1969 | if (!error) { | |
1970 | struct ofproto_port ofproto_port; | |
1971 | ||
1972 | error = ofproto_port_query_by_name(ofproto, | |
1973 | netdev_get_name(netdev), | |
1974 | &ofproto_port); | |
1975 | if (!error) { | |
1976 | *ofp_portp = ofproto_port.ofp_port; | |
1977 | ofproto_port_destroy(&ofproto_port); | |
1978 | } | |
1979 | } | |
3a6ccc8c BP |
1980 | } |
1981 | return error; | |
1982 | } | |
1983 | ||
b5827b24 BP |
1984 | /* Looks up a port named 'devname' in 'ofproto'. On success, returns 0 and |
1985 | * initializes '*port' appropriately; on failure, returns a positive errno | |
1986 | * value. | |
1987 | * | |
abe529af | 1988 | * The caller owns the data in 'ofproto_port' and must free it with |
b5827b24 BP |
1989 | * ofproto_port_destroy() when it is no longer needed. */ |
1990 | int | |
1991 | ofproto_port_query_by_name(const struct ofproto *ofproto, const char *devname, | |
1992 | struct ofproto_port *port) | |
a4e2e1f2 | 1993 | { |
b5827b24 BP |
1994 | int error; |
1995 | ||
abe529af BP |
1996 | error = ofproto->ofproto_class->port_query_by_name(ofproto, devname, port); |
1997 | if (error) { | |
1998 | memset(port, 0, sizeof *port); | |
b5827b24 BP |
1999 | } |
2000 | return error; | |
a4e2e1f2 EJ |
2001 | } |
2002 | ||
b5827b24 | 2003 | /* Deletes port number 'ofp_port' from the datapath for 'ofproto'. |
3a6ccc8c | 2004 | * Returns 0 if successful, otherwise a positive errno. */ |
064af421 | 2005 | int |
4e022ec0 | 2006 | ofproto_port_del(struct ofproto *ofproto, ofp_port_t ofp_port) |
064af421 | 2007 | { |
abe529af | 2008 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1264ec95 | 2009 | const char *name = ofport ? netdev_get_name(ofport->netdev) : "<unknown>"; |
e1b1d06a | 2010 | struct simap_node *ofp_request_node; |
3cf10406 | 2011 | int error; |
cdee00fd | 2012 | |
e1b1d06a JP |
2013 | ofp_request_node = simap_find(&ofproto->ofp_requests, name); |
2014 | if (ofp_request_node) { | |
2015 | simap_delete(&ofproto->ofp_requests, ofp_request_node); | |
2016 | } | |
2017 | ||
abe529af | 2018 | error = ofproto->ofproto_class->port_del(ofproto, ofp_port); |
892815f5 | 2019 | if (!error && ofport) { |
1264ec95 BP |
2020 | /* 'name' is the netdev's name and update_port() is going to close the |
2021 | * netdev. Just in case update_port() refers to 'name' after it | |
3a6ccc8c BP |
2022 | * destroys 'ofport', make a copy of it around the update_port() |
2023 | * call. */ | |
2024 | char *devname = xstrdup(name); | |
2025 | update_port(ofproto, devname); | |
2026 | free(devname); | |
3cf10406 BP |
2027 | } |
2028 | return error; | |
064af421 BP |
2029 | } |
2030 | ||
276f6518 SH |
2031 | static void |
2032 | flow_mod_init(struct ofputil_flow_mod *fm, | |
eb391b76 | 2033 | const struct match *match, int priority, |
276f6518 SH |
2034 | const struct ofpact *ofpacts, size_t ofpacts_len, |
2035 | enum ofp_flow_mod_command command) | |
2036 | { | |
39cc5c4a BP |
2037 | *fm = (struct ofputil_flow_mod) { |
2038 | .match = *match, | |
2039 | .priority = priority, | |
2040 | .table_id = 0, | |
2041 | .command = command, | |
2042 | .buffer_id = UINT32_MAX, | |
2043 | .out_port = OFPP_ANY, | |
2044 | .out_group = OFPG_ANY, | |
2045 | .ofpacts = CONST_CAST(struct ofpact *, ofpacts), | |
2046 | .ofpacts_len = ofpacts_len, | |
2047 | .delete_reason = OFPRR_DELETE, | |
2048 | }; | |
276f6518 SH |
2049 | } |
2050 | ||
97f63e57 BP |
2051 | static int |
2052 | simple_flow_mod(struct ofproto *ofproto, | |
eb391b76 | 2053 | const struct match *match, int priority, |
97f63e57 BP |
2054 | const struct ofpact *ofpacts, size_t ofpacts_len, |
2055 | enum ofp_flow_mod_command command) | |
2056 | { | |
8be00367 | 2057 | struct ofproto_flow_mod ofm; |
97f63e57 | 2058 | |
8be00367 | 2059 | flow_mod_init(&ofm.fm, match, priority, ofpacts, ofpacts_len, command); |
15aaf599 | 2060 | |
8be00367 | 2061 | return handle_flow_mod__(ofproto, &ofm, NULL); |
97f63e57 BP |
2062 | } |
2063 | ||
6c1491fb | 2064 | /* Adds a flow to OpenFlow flow table 0 in 'p' that matches 'cls_rule' and |
fa8b054f BP |
2065 | * performs the 'n_actions' actions in 'actions'. The new flow will not |
2066 | * timeout. | |
2067 | * | |
2068 | * If cls_rule->priority is in the range of priorities supported by OpenFlow | |
2069 | * (0...65535, inclusive) then the flow will be visible to OpenFlow | |
2070 | * controllers; otherwise, it will be hidden. | |
2071 | * | |
f25d0cf3 | 2072 | * The caller retains ownership of 'cls_rule' and 'ofpacts'. |
6c1491fb BP |
2073 | * |
2074 | * This is a helper function for in-band control and fail-open. */ | |
064af421 | 2075 | void |
81a76618 | 2076 | ofproto_add_flow(struct ofproto *ofproto, const struct match *match, |
eb391b76 | 2077 | int priority, |
f25d0cf3 | 2078 | const struct ofpact *ofpacts, size_t ofpacts_len) |
15aaf599 | 2079 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 2080 | { |
7ee20df1 | 2081 | const struct rule *rule; |
6f00e29b | 2082 | bool must_add; |
7ee20df1 | 2083 | |
97f63e57 BP |
2084 | /* First do a cheap check whether the rule we're looking for already exists |
2085 | * with the actions that we want. If it does, then we're done. */ | |
81a76618 | 2086 | rule = rule_from_cls_rule(classifier_find_match_exactly( |
2b7b1427 JR |
2087 | &ofproto->tables[0].cls, match, priority, |
2088 | CLS_MAX_VERSION)); | |
6f00e29b | 2089 | if (rule) { |
dc723c44 | 2090 | const struct rule_actions *actions = rule_get_actions(rule); |
06a0f3e2 | 2091 | must_add = !ofpacts_equal(actions->ofpacts, actions->ofpacts_len, |
6f00e29b | 2092 | ofpacts, ofpacts_len); |
6f00e29b BP |
2093 | } else { |
2094 | must_add = true; | |
2095 | } | |
97f63e57 BP |
2096 | |
2097 | /* If there's no such rule or the rule doesn't have the actions we want, | |
2098 | * fall back to a executing a full flow mod. We can't optimize this at | |
2099 | * all because we didn't take enough locks above to ensure that the flow | |
2100 | * table didn't already change beneath us. */ | |
6f00e29b | 2101 | if (must_add) { |
97f63e57 BP |
2102 | simple_flow_mod(ofproto, match, priority, ofpacts, ofpacts_len, |
2103 | OFPFC_MODIFY_STRICT); | |
7ee20df1 | 2104 | } |
064af421 BP |
2105 | } |
2106 | ||
d51c8b71 JR |
2107 | /* Executes the flow modification specified in 'fm'. Returns 0 on success, or |
2108 | * an OFPERR_* OpenFlow error code on failure. | |
75a75043 | 2109 | * |
1b63b91e BP |
2110 | * This is a helper function for in-band control and fail-open and the "learn" |
2111 | * action. */ | |
d51c8b71 | 2112 | enum ofperr |
8be00367 | 2113 | ofproto_flow_mod(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
15aaf599 | 2114 | OVS_EXCLUDED(ofproto_mutex) |
75a75043 | 2115 | { |
8be00367 JR |
2116 | struct ofputil_flow_mod *fm = &ofm->fm; |
2117 | ||
b90d6ee5 JR |
2118 | /* Optimize for the most common case of a repeated learn action. |
2119 | * If an identical flow already exists we only need to update its | |
2120 | * 'modified' time. */ | |
2121 | if (fm->command == OFPFC_MODIFY_STRICT && fm->table_id != OFPTT_ALL | |
2122 | && !(fm->flags & OFPUTIL_FF_RESET_COUNTS)) { | |
2123 | struct oftable *table = &ofproto->tables[fm->table_id]; | |
b90d6ee5 JR |
2124 | struct rule *rule; |
2125 | bool done = false; | |
2126 | ||
2b7b1427 | 2127 | rule = rule_from_cls_rule(classifier_find_match_exactly( |
39c94593 JR |
2128 | &table->cls, &fm->match, fm->priority, |
2129 | CLS_MAX_VERSION)); | |
b90d6ee5 JR |
2130 | if (rule) { |
2131 | /* Reading many of the rule fields and writing on 'modified' | |
2132 | * requires the rule->mutex. Also, rule->actions may change | |
2133 | * if rule->mutex is not held. */ | |
06a0f3e2 BP |
2134 | const struct rule_actions *actions; |
2135 | ||
b90d6ee5 | 2136 | ovs_mutex_lock(&rule->mutex); |
06a0f3e2 | 2137 | actions = rule_get_actions(rule); |
b90d6ee5 JR |
2138 | if (rule->idle_timeout == fm->idle_timeout |
2139 | && rule->hard_timeout == fm->hard_timeout | |
ca26eb44 | 2140 | && rule->importance == fm->importance |
b90d6ee5 JR |
2141 | && rule->flags == (fm->flags & OFPUTIL_FF_STATE) |
2142 | && (!fm->modify_cookie || (fm->new_cookie == rule->flow_cookie)) | |
2143 | && ofpacts_equal(fm->ofpacts, fm->ofpacts_len, | |
06a0f3e2 | 2144 | actions->ofpacts, actions->ofpacts_len)) { |
b90d6ee5 JR |
2145 | /* Rule already exists and need not change, only update the |
2146 | modified timestamp. */ | |
2147 | rule->modified = time_msec(); | |
2148 | done = true; | |
2149 | } | |
2150 | ovs_mutex_unlock(&rule->mutex); | |
2151 | } | |
b90d6ee5 JR |
2152 | |
2153 | if (done) { | |
2154 | return 0; | |
2155 | } | |
2156 | } | |
2157 | ||
8be00367 | 2158 | return handle_flow_mod__(ofproto, ofm, NULL); |
75a75043 BP |
2159 | } |
2160 | ||
6c1491fb BP |
2161 | /* Searches for a rule with matching criteria exactly equal to 'target' in |
2162 | * ofproto's table 0 and, if it finds one, deletes it. | |
2163 | * | |
2164 | * This is a helper function for in-band control and fail-open. */ | |
b20f4073 | 2165 | void |
81a76618 | 2166 | ofproto_delete_flow(struct ofproto *ofproto, |
eb391b76 | 2167 | const struct match *target, int priority) |
15aaf599 | 2168 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 2169 | { |
8037acb4 | 2170 | struct classifier *cls = &ofproto->tables[0].cls; |
064af421 BP |
2171 | struct rule *rule; |
2172 | ||
97f63e57 BP |
2173 | /* First do a cheap check whether the rule we're looking for has already |
2174 | * been deleted. If so, then we're done. */ | |
39c94593 JR |
2175 | rule = rule_from_cls_rule(classifier_find_match_exactly( |
2176 | cls, target, priority, CLS_MAX_VERSION)); | |
834fe5cb BP |
2177 | if (!rule) { |
2178 | return; | |
bcf84111 | 2179 | } |
834fe5cb BP |
2180 | |
2181 | /* Execute a flow mod. We can't optimize this at all because we didn't | |
2182 | * take enough locks above to ensure that the flow table didn't already | |
2183 | * change beneath us. */ | |
2184 | simple_flow_mod(ofproto, target, priority, NULL, 0, OFPFC_DELETE_STRICT); | |
142e1f5c BP |
2185 | } |
2186 | ||
834fe5cb BP |
2187 | /* Delete all of the flows from all of ofproto's flow tables, then reintroduce |
2188 | * the flows required by in-band control and fail-open. */ | |
142e1f5c BP |
2189 | void |
2190 | ofproto_flush_flows(struct ofproto *ofproto) | |
2191 | { | |
7ee20df1 | 2192 | COVERAGE_INC(ofproto_flush); |
834fe5cb BP |
2193 | ofproto_flush__(ofproto); |
2194 | connmgr_flushed(ofproto->connmgr); | |
064af421 BP |
2195 | } |
2196 | \f | |
2197 | static void | |
2198 | reinit_ports(struct ofproto *p) | |
2199 | { | |
abe529af | 2200 | struct ofproto_port_dump dump; |
b3c01ed3 | 2201 | struct sset devnames; |
064af421 | 2202 | struct ofport *ofport; |
abe529af | 2203 | struct ofproto_port ofproto_port; |
b3c01ed3 | 2204 | const char *devname; |
064af421 | 2205 | |
898bf89d JP |
2206 | COVERAGE_INC(ofproto_reinit_ports); |
2207 | ||
b3c01ed3 | 2208 | sset_init(&devnames); |
4e8e4213 | 2209 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { |
1264ec95 | 2210 | sset_add(&devnames, netdev_get_name(ofport->netdev)); |
064af421 | 2211 | } |
abe529af BP |
2212 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { |
2213 | sset_add(&devnames, ofproto_port.name); | |
064af421 | 2214 | } |
064af421 | 2215 | |
b3c01ed3 BP |
2216 | SSET_FOR_EACH (devname, &devnames) { |
2217 | update_port(p, devname); | |
064af421 | 2218 | } |
b3c01ed3 | 2219 | sset_destroy(&devnames); |
064af421 BP |
2220 | } |
2221 | ||
4e022ec0 | 2222 | static ofp_port_t |
e1b1d06a JP |
2223 | alloc_ofp_port(struct ofproto *ofproto, const char *netdev_name) |
2224 | { | |
4e022ec0 | 2225 | uint16_t port_idx; |
e1b1d06a | 2226 | |
4e022ec0 | 2227 | port_idx = simap_get(&ofproto->ofp_requests, netdev_name); |
430dbb14 | 2228 | port_idx = port_idx ? port_idx : UINT16_MAX; |
4e022ec0 | 2229 | |
430dbb14 | 2230 | if (port_idx >= ofproto->max_ports |
fdcea803 GS |
2231 | || ofport_get_usage(ofproto, u16_to_ofp(port_idx)) == LLONG_MAX) { |
2232 | uint16_t lru_ofport = 0, end_port_no = ofproto->alloc_port_no; | |
2233 | long long int last_used_at, lru = LLONG_MAX; | |
e1b1d06a | 2234 | |
e1b1d06a JP |
2235 | /* Search for a free OpenFlow port number. We try not to |
2236 | * immediately reuse them to prevent problems due to old | |
484c8355 BP |
2237 | * flows. |
2238 | * | |
2239 | * We limit the automatically assigned port numbers to the lower half | |
2240 | * of the port range, to reserve the upper half for assignment by | |
2241 | * controllers. */ | |
6033d9d9 | 2242 | for (;;) { |
484c8355 | 2243 | if (++ofproto->alloc_port_no >= MIN(ofproto->max_ports, 32768)) { |
fdcea803 | 2244 | ofproto->alloc_port_no = 1; |
6033d9d9 | 2245 | } |
fdcea803 GS |
2246 | last_used_at = ofport_get_usage(ofproto, |
2247 | u16_to_ofp(ofproto->alloc_port_no)); | |
2248 | if (!last_used_at) { | |
430dbb14 | 2249 | port_idx = ofproto->alloc_port_no; |
6033d9d9 | 2250 | break; |
865b26a4 GS |
2251 | } else if ( last_used_at < time_msec() - 60*60*1000) { |
2252 | /* If the port with ofport 'ofproto->alloc_port_no' was deleted | |
2253 | * more than an hour ago, consider it usable. */ | |
2254 | ofport_remove_usage(ofproto, | |
2255 | u16_to_ofp(ofproto->alloc_port_no)); | |
2256 | port_idx = ofproto->alloc_port_no; | |
2257 | break; | |
fdcea803 GS |
2258 | } else if (last_used_at < lru) { |
2259 | lru = last_used_at; | |
2260 | lru_ofport = ofproto->alloc_port_no; | |
e1b1d06a | 2261 | } |
fdcea803 | 2262 | |
430dbb14 | 2263 | if (ofproto->alloc_port_no == end_port_no) { |
fdcea803 GS |
2264 | if (lru_ofport) { |
2265 | port_idx = lru_ofport; | |
2266 | break; | |
2267 | } | |
6033d9d9 | 2268 | return OFPP_NONE; |
e1b1d06a JP |
2269 | } |
2270 | } | |
2271 | } | |
fdcea803 | 2272 | ofport_set_usage(ofproto, u16_to_ofp(port_idx), LLONG_MAX); |
4e022ec0 | 2273 | return u16_to_ofp(port_idx); |
e1b1d06a JP |
2274 | } |
2275 | ||
2276 | static void | |
fdcea803 | 2277 | dealloc_ofp_port(struct ofproto *ofproto, ofp_port_t ofp_port) |
e1b1d06a | 2278 | { |
430dbb14 | 2279 | if (ofp_to_u16(ofp_port) < ofproto->max_ports) { |
fdcea803 | 2280 | ofport_set_usage(ofproto, ofp_port, time_msec()); |
40fa9417 | 2281 | } |
e1b1d06a JP |
2282 | } |
2283 | ||
fbfa2911 BP |
2284 | /* Opens and returns a netdev for 'ofproto_port' in 'ofproto', or a null |
2285 | * pointer if the netdev cannot be opened. On success, also fills in | |
d7d92203 | 2286 | * '*pp'. */ |
b33951b8 | 2287 | static struct netdev * |
e1b1d06a JP |
2288 | ofport_open(struct ofproto *ofproto, |
2289 | struct ofproto_port *ofproto_port, | |
9e1fd49b | 2290 | struct ofputil_phy_port *pp) |
064af421 BP |
2291 | { |
2292 | enum netdev_flags flags; | |
064af421 | 2293 | struct netdev *netdev; |
064af421 BP |
2294 | int error; |
2295 | ||
18812dff | 2296 | error = netdev_open(ofproto_port->name, ofproto_port->type, &netdev); |
064af421 | 2297 | if (error) { |
fbfa2911 | 2298 | VLOG_WARN_RL(&rl, "%s: ignoring port %s (%"PRIu16") because netdev %s " |
064af421 | 2299 | "cannot be opened (%s)", |
fbfa2911 | 2300 | ofproto->name, |
abe529af | 2301 | ofproto_port->name, ofproto_port->ofp_port, |
10a89ef0 | 2302 | ofproto_port->name, ovs_strerror(error)); |
064af421 BP |
2303 | return NULL; |
2304 | } | |
2305 | ||
e1b1d06a JP |
2306 | if (ofproto_port->ofp_port == OFPP_NONE) { |
2307 | if (!strcmp(ofproto->name, ofproto_port->name)) { | |
2308 | ofproto_port->ofp_port = OFPP_LOCAL; | |
2309 | } else { | |
2310 | ofproto_port->ofp_port = alloc_ofp_port(ofproto, | |
2311 | ofproto_port->name); | |
2312 | } | |
2313 | } | |
9e1fd49b | 2314 | pp->port_no = ofproto_port->ofp_port; |
74ff3298 | 2315 | netdev_get_etheraddr(netdev, &pp->hw_addr); |
9e1fd49b | 2316 | ovs_strlcpy(pp->name, ofproto_port->name, sizeof pp->name); |
064af421 | 2317 | netdev_get_flags(netdev, &flags); |
9e1fd49b BP |
2318 | pp->config = flags & NETDEV_UP ? 0 : OFPUTIL_PC_PORT_DOWN; |
2319 | pp->state = netdev_get_carrier(netdev) ? 0 : OFPUTIL_PS_LINK_DOWN; | |
2320 | netdev_get_features(netdev, &pp->curr, &pp->advertised, | |
2321 | &pp->supported, &pp->peer); | |
cd65125d BP |
2322 | pp->curr_speed = netdev_features_to_bps(pp->curr, 0) / 1000; |
2323 | pp->max_speed = netdev_features_to_bps(pp->supported, 0) / 1000; | |
118c4676 | 2324 | |
b33951b8 | 2325 | return netdev; |
064af421 BP |
2326 | } |
2327 | ||
b33951b8 | 2328 | /* Returns true if most fields of 'a' and 'b' are equal. Differences in name, |
d7d92203 | 2329 | * port number, and 'config' bits other than OFPUTIL_PC_PORT_DOWN are |
b33951b8 BP |
2330 | * disregarded. */ |
2331 | static bool | |
9e1fd49b BP |
2332 | ofport_equal(const struct ofputil_phy_port *a, |
2333 | const struct ofputil_phy_port *b) | |
064af421 | 2334 | { |
9e1fd49b | 2335 | return (eth_addr_equals(a->hw_addr, b->hw_addr) |
064af421 | 2336 | && a->state == b->state |
9e1fd49b | 2337 | && !((a->config ^ b->config) & OFPUTIL_PC_PORT_DOWN) |
064af421 BP |
2338 | && a->curr == b->curr |
2339 | && a->advertised == b->advertised | |
2340 | && a->supported == b->supported | |
9e1fd49b BP |
2341 | && a->peer == b->peer |
2342 | && a->curr_speed == b->curr_speed | |
2343 | && a->max_speed == b->max_speed); | |
064af421 BP |
2344 | } |
2345 | ||
b33951b8 BP |
2346 | /* Adds an ofport to 'p' initialized based on the given 'netdev' and 'opp'. |
2347 | * The caller must ensure that 'p' does not have a conflicting ofport (that is, | |
2348 | * one with the same name or port number). */ | |
064af421 | 2349 | static void |
b33951b8 | 2350 | ofport_install(struct ofproto *p, |
9e1fd49b | 2351 | struct netdev *netdev, const struct ofputil_phy_port *pp) |
064af421 | 2352 | { |
b33951b8 BP |
2353 | const char *netdev_name = netdev_get_name(netdev); |
2354 | struct ofport *ofport; | |
abe529af | 2355 | int error; |
72b06300 | 2356 | |
b33951b8 | 2357 | /* Create ofport. */ |
abe529af BP |
2358 | ofport = p->ofproto_class->port_alloc(); |
2359 | if (!ofport) { | |
2360 | error = ENOMEM; | |
2361 | goto error; | |
2362 | } | |
0f7d71a5 | 2363 | ofport->ofproto = p; |
b33951b8 | 2364 | ofport->netdev = netdev; |
61501798 | 2365 | ofport->change_seq = netdev_get_change_seq(netdev); |
9e1fd49b BP |
2366 | ofport->pp = *pp; |
2367 | ofport->ofp_port = pp->port_no; | |
65e0be10 | 2368 | ofport->created = time_msec(); |
b33951b8 BP |
2369 | |
2370 | /* Add port to 'p'. */ | |
4e022ec0 | 2371 | hmap_insert(&p->ports, &ofport->hmap_node, |
f9c0c3ec | 2372 | hash_ofp_port(ofport->ofp_port)); |
72b06300 | 2373 | shash_add(&p->port_by_name, netdev_name, ofport); |
abe529af | 2374 | |
ada3428f | 2375 | update_mtu(p, ofport); |
9197df76 | 2376 | |
abe529af BP |
2377 | /* Let the ofproto_class initialize its private data. */ |
2378 | error = p->ofproto_class->port_construct(ofport); | |
2379 | if (error) { | |
2380 | goto error; | |
2381 | } | |
2a6f78e0 | 2382 | connmgr_send_port_status(p->connmgr, NULL, pp, OFPPR_ADD); |
abe529af BP |
2383 | return; |
2384 | ||
2385 | error: | |
2386 | VLOG_WARN_RL(&rl, "%s: could not add port %s (%s)", | |
10a89ef0 | 2387 | p->name, netdev_name, ovs_strerror(error)); |
abe529af BP |
2388 | if (ofport) { |
2389 | ofport_destroy__(ofport); | |
2390 | } else { | |
2391 | netdev_close(netdev); | |
72b06300 | 2392 | } |
064af421 BP |
2393 | } |
2394 | ||
b33951b8 | 2395 | /* Removes 'ofport' from 'p' and destroys it. */ |
064af421 | 2396 | static void |
0f7d71a5 | 2397 | ofport_remove(struct ofport *ofport) |
064af421 | 2398 | { |
2a6f78e0 | 2399 | connmgr_send_port_status(ofport->ofproto->connmgr, NULL, &ofport->pp, |
fa066f01 | 2400 | OFPPR_DELETE); |
abe529af | 2401 | ofport_destroy(ofport); |
b33951b8 BP |
2402 | } |
2403 | ||
2404 | /* If 'ofproto' contains an ofport named 'name', removes it from 'ofproto' and | |
2405 | * destroys it. */ | |
2406 | static void | |
2407 | ofport_remove_with_name(struct ofproto *ofproto, const char *name) | |
2408 | { | |
2409 | struct ofport *port = shash_find_data(&ofproto->port_by_name, name); | |
2410 | if (port) { | |
0f7d71a5 | 2411 | ofport_remove(port); |
b33951b8 BP |
2412 | } |
2413 | } | |
2414 | ||
9e1fd49b | 2415 | /* Updates 'port' with new 'pp' description. |
b33951b8 BP |
2416 | * |
2417 | * Does not handle a name or port number change. The caller must implement | |
2418 | * such a change as a delete followed by an add. */ | |
2419 | static void | |
9e1fd49b | 2420 | ofport_modified(struct ofport *port, struct ofputil_phy_port *pp) |
b33951b8 | 2421 | { |
74ff3298 | 2422 | port->pp.hw_addr = pp->hw_addr; |
9e1fd49b BP |
2423 | port->pp.config = ((port->pp.config & ~OFPUTIL_PC_PORT_DOWN) |
2424 | | (pp->config & OFPUTIL_PC_PORT_DOWN)); | |
53fd5c7c BP |
2425 | port->pp.state = ((port->pp.state & ~OFPUTIL_PS_LINK_DOWN) |
2426 | | (pp->state & OFPUTIL_PS_LINK_DOWN)); | |
9e1fd49b BP |
2427 | port->pp.curr = pp->curr; |
2428 | port->pp.advertised = pp->advertised; | |
2429 | port->pp.supported = pp->supported; | |
2430 | port->pp.peer = pp->peer; | |
2431 | port->pp.curr_speed = pp->curr_speed; | |
2432 | port->pp.max_speed = pp->max_speed; | |
b33951b8 | 2433 | |
2a6f78e0 BP |
2434 | connmgr_send_port_status(port->ofproto->connmgr, NULL, |
2435 | &port->pp, OFPPR_MODIFY); | |
064af421 BP |
2436 | } |
2437 | ||
5a2dfd47 JP |
2438 | /* Update OpenFlow 'state' in 'port' and notify controller. */ |
2439 | void | |
9e1fd49b | 2440 | ofproto_port_set_state(struct ofport *port, enum ofputil_port_state state) |
5a2dfd47 | 2441 | { |
9e1fd49b BP |
2442 | if (port->pp.state != state) { |
2443 | port->pp.state = state; | |
2a6f78e0 BP |
2444 | connmgr_send_port_status(port->ofproto->connmgr, NULL, |
2445 | &port->pp, OFPPR_MODIFY); | |
5a2dfd47 JP |
2446 | } |
2447 | } | |
2448 | ||
abe529af | 2449 | void |
4e022ec0 | 2450 | ofproto_port_unregister(struct ofproto *ofproto, ofp_port_t ofp_port) |
e7934396 | 2451 | { |
abe529af BP |
2452 | struct ofport *port = ofproto_get_port(ofproto, ofp_port); |
2453 | if (port) { | |
52a90c29 BP |
2454 | if (port->ofproto->ofproto_class->set_realdev) { |
2455 | port->ofproto->ofproto_class->set_realdev(port, 0, 0); | |
2456 | } | |
b308140a JP |
2457 | if (port->ofproto->ofproto_class->set_stp_port) { |
2458 | port->ofproto->ofproto_class->set_stp_port(port, NULL); | |
2459 | } | |
9efd308e DV |
2460 | if (port->ofproto->ofproto_class->set_rstp_port) { |
2461 | port->ofproto->ofproto_class->set_rstp_port(port, NULL); | |
2462 | } | |
abe529af | 2463 | if (port->ofproto->ofproto_class->set_cfm) { |
a5610457 | 2464 | port->ofproto->ofproto_class->set_cfm(port, NULL); |
abe529af BP |
2465 | } |
2466 | if (port->ofproto->ofproto_class->bundle_remove) { | |
2467 | port->ofproto->ofproto_class->bundle_remove(port); | |
e7934396 BP |
2468 | } |
2469 | } | |
2470 | } | |
2471 | ||
2472 | static void | |
abe529af | 2473 | ofport_destroy__(struct ofport *port) |
e7934396 | 2474 | { |
abe529af BP |
2475 | struct ofproto *ofproto = port->ofproto; |
2476 | const char *name = netdev_get_name(port->netdev); | |
fa066f01 | 2477 | |
abe529af BP |
2478 | hmap_remove(&ofproto->ports, &port->hmap_node); |
2479 | shash_delete(&ofproto->port_by_name, | |
2480 | shash_find(&ofproto->port_by_name, name)); | |
fa066f01 | 2481 | |
abe529af BP |
2482 | netdev_close(port->netdev); |
2483 | ofproto->ofproto_class->port_dealloc(port); | |
e7934396 BP |
2484 | } |
2485 | ||
064af421 | 2486 | static void |
abe529af | 2487 | ofport_destroy(struct ofport *port) |
064af421 | 2488 | { |
fa066f01 | 2489 | if (port) { |
e1b1d06a | 2490 | dealloc_ofp_port(port->ofproto, port->ofp_port); |
abe529af BP |
2491 | port->ofproto->ofproto_class->port_destruct(port); |
2492 | ofport_destroy__(port); | |
2493 | } | |
064af421 BP |
2494 | } |
2495 | ||
abe529af | 2496 | struct ofport * |
4e022ec0 | 2497 | ofproto_get_port(const struct ofproto *ofproto, ofp_port_t ofp_port) |
ca0f572c BP |
2498 | { |
2499 | struct ofport *port; | |
2500 | ||
f9c0c3ec | 2501 | HMAP_FOR_EACH_IN_BUCKET (port, hmap_node, hash_ofp_port(ofp_port), |
4e022ec0 | 2502 | &ofproto->ports) { |
abe529af | 2503 | if (port->ofp_port == ofp_port) { |
ca0f572c BP |
2504 | return port; |
2505 | } | |
2506 | } | |
2507 | return NULL; | |
2508 | } | |
2509 | ||
fdcea803 GS |
2510 | static long long int |
2511 | ofport_get_usage(const struct ofproto *ofproto, ofp_port_t ofp_port) | |
2512 | { | |
2513 | struct ofport_usage *usage; | |
2514 | ||
2515 | HMAP_FOR_EACH_IN_BUCKET (usage, hmap_node, hash_ofp_port(ofp_port), | |
2516 | &ofproto->ofport_usage) { | |
2517 | if (usage->ofp_port == ofp_port) { | |
2518 | return usage->last_used; | |
2519 | } | |
2520 | } | |
2521 | return 0; | |
2522 | } | |
2523 | ||
2524 | static void | |
2525 | ofport_set_usage(struct ofproto *ofproto, ofp_port_t ofp_port, | |
2526 | long long int last_used) | |
2527 | { | |
2528 | struct ofport_usage *usage; | |
2529 | HMAP_FOR_EACH_IN_BUCKET (usage, hmap_node, hash_ofp_port(ofp_port), | |
2530 | &ofproto->ofport_usage) { | |
2531 | if (usage->ofp_port == ofp_port) { | |
2532 | usage->last_used = last_used; | |
2533 | return; | |
2534 | } | |
2535 | } | |
2536 | ovs_assert(last_used == LLONG_MAX); | |
2537 | ||
2538 | usage = xmalloc(sizeof *usage); | |
2539 | usage->ofp_port = ofp_port; | |
2540 | usage->last_used = last_used; | |
2541 | hmap_insert(&ofproto->ofport_usage, &usage->hmap_node, | |
2542 | hash_ofp_port(ofp_port)); | |
2543 | } | |
2544 | ||
865b26a4 GS |
2545 | static void |
2546 | ofport_remove_usage(struct ofproto *ofproto, ofp_port_t ofp_port) | |
2547 | { | |
2548 | struct ofport_usage *usage; | |
2549 | HMAP_FOR_EACH_IN_BUCKET (usage, hmap_node, hash_ofp_port(ofp_port), | |
2550 | &ofproto->ofport_usage) { | |
2551 | if (usage->ofp_port == ofp_port) { | |
2552 | hmap_remove(&ofproto->ofport_usage, &usage->hmap_node); | |
2553 | free(usage); | |
2554 | break; | |
2555 | } | |
2556 | } | |
2557 | } | |
2558 | ||
6527c598 PS |
2559 | int |
2560 | ofproto_port_get_stats(const struct ofport *port, struct netdev_stats *stats) | |
2561 | { | |
2562 | struct ofproto *ofproto = port->ofproto; | |
2563 | int error; | |
2564 | ||
2565 | if (ofproto->ofproto_class->port_get_stats) { | |
2566 | error = ofproto->ofproto_class->port_get_stats(port, stats); | |
2567 | } else { | |
2568 | error = EOPNOTSUPP; | |
2569 | } | |
2570 | ||
2571 | return error; | |
2572 | } | |
2573 | ||
064af421 | 2574 | static void |
b33951b8 | 2575 | update_port(struct ofproto *ofproto, const char *name) |
064af421 | 2576 | { |
abe529af | 2577 | struct ofproto_port ofproto_port; |
9e1fd49b | 2578 | struct ofputil_phy_port pp; |
b33951b8 BP |
2579 | struct netdev *netdev; |
2580 | struct ofport *port; | |
064af421 BP |
2581 | |
2582 | COVERAGE_INC(ofproto_update_port); | |
c874dc6d | 2583 | |
b33951b8 | 2584 | /* Fetch 'name''s location and properties from the datapath. */ |
abe529af | 2585 | netdev = (!ofproto_port_query_by_name(ofproto, name, &ofproto_port) |
fbfa2911 | 2586 | ? ofport_open(ofproto, &ofproto_port, &pp) |
b33951b8 | 2587 | : NULL); |
4e022ec0 | 2588 | |
b33951b8 | 2589 | if (netdev) { |
abe529af | 2590 | port = ofproto_get_port(ofproto, ofproto_port.ofp_port); |
b33951b8 | 2591 | if (port && !strcmp(netdev_get_name(port->netdev), name)) { |
e65942a0 BP |
2592 | struct netdev *old_netdev = port->netdev; |
2593 | ||
b33951b8 | 2594 | /* 'name' hasn't changed location. Any properties changed? */ |
9e1fd49b BP |
2595 | if (!ofport_equal(&port->pp, &pp)) { |
2596 | ofport_modified(port, &pp); | |
abe529af BP |
2597 | } |
2598 | ||
ada3428f | 2599 | update_mtu(ofproto, port); |
9197df76 | 2600 | |
e65942a0 BP |
2601 | /* Install the newly opened netdev in case it has changed. |
2602 | * Don't close the old netdev yet in case port_modified has to | |
2603 | * remove a retained reference to it.*/ | |
abe529af | 2604 | port->netdev = netdev; |
61501798 | 2605 | port->change_seq = netdev_get_change_seq(netdev); |
abe529af BP |
2606 | |
2607 | if (port->ofproto->ofproto_class->port_modified) { | |
2608 | port->ofproto->ofproto_class->port_modified(port); | |
b33951b8 | 2609 | } |
e65942a0 BP |
2610 | |
2611 | netdev_close(old_netdev); | |
b33951b8 BP |
2612 | } else { |
2613 | /* If 'port' is nonnull then its name differs from 'name' and thus | |
2614 | * we should delete it. If we think there's a port named 'name' | |
2615 | * then its port number must be wrong now so delete it too. */ | |
2616 | if (port) { | |
0f7d71a5 | 2617 | ofport_remove(port); |
b33951b8 BP |
2618 | } |
2619 | ofport_remove_with_name(ofproto, name); | |
9e1fd49b | 2620 | ofport_install(ofproto, netdev, &pp); |
c874dc6d | 2621 | } |
b33951b8 BP |
2622 | } else { |
2623 | /* Any port named 'name' is gone now. */ | |
2624 | ofport_remove_with_name(ofproto, name); | |
c874dc6d | 2625 | } |
abe529af | 2626 | ofproto_port_destroy(&ofproto_port); |
064af421 BP |
2627 | } |
2628 | ||
2629 | static int | |
2630 | init_ports(struct ofproto *p) | |
2631 | { | |
abe529af BP |
2632 | struct ofproto_port_dump dump; |
2633 | struct ofproto_port ofproto_port; | |
e1b1d06a | 2634 | struct shash_node *node, *next; |
abe529af BP |
2635 | |
2636 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { | |
e1b1d06a JP |
2637 | const char *name = ofproto_port.name; |
2638 | ||
2639 | if (shash_find(&p->port_by_name, name)) { | |
fbfa2911 | 2640 | VLOG_WARN_RL(&rl, "%s: ignoring duplicate device %s in datapath", |
e1b1d06a | 2641 | p->name, name); |
abe529af | 2642 | } else { |
9e1fd49b | 2643 | struct ofputil_phy_port pp; |
b33951b8 BP |
2644 | struct netdev *netdev; |
2645 | ||
e1b1d06a JP |
2646 | /* Check if an OpenFlow port number had been requested. */ |
2647 | node = shash_find(&init_ofp_ports, name); | |
2648 | if (node) { | |
2649 | const struct iface_hint *iface_hint = node->data; | |
4e022ec0 AW |
2650 | simap_put(&p->ofp_requests, name, |
2651 | ofp_to_u16(iface_hint->ofp_port)); | |
e1b1d06a JP |
2652 | } |
2653 | ||
fbfa2911 | 2654 | netdev = ofport_open(p, &ofproto_port, &pp); |
b33951b8 | 2655 | if (netdev) { |
9e1fd49b | 2656 | ofport_install(p, netdev, &pp); |
430dbb14 | 2657 | if (ofp_to_u16(ofproto_port.ofp_port) < p->max_ports) { |
7c35397c | 2658 | p->alloc_port_no = MAX(p->alloc_port_no, |
430dbb14 | 2659 | ofp_to_u16(ofproto_port.ofp_port)); |
7c35397c | 2660 | } |
064af421 BP |
2661 | } |
2662 | } | |
2663 | } | |
b0ec0f27 | 2664 | |
e1b1d06a | 2665 | SHASH_FOR_EACH_SAFE(node, next, &init_ofp_ports) { |
4f9e08a5 | 2666 | struct iface_hint *iface_hint = node->data; |
e1b1d06a JP |
2667 | |
2668 | if (!strcmp(iface_hint->br_name, p->name)) { | |
2669 | free(iface_hint->br_name); | |
2670 | free(iface_hint->br_type); | |
4f9e08a5 | 2671 | free(iface_hint); |
e1b1d06a JP |
2672 | shash_delete(&init_ofp_ports, node); |
2673 | } | |
2674 | } | |
2675 | ||
064af421 BP |
2676 | return 0; |
2677 | } | |
9197df76 JP |
2678 | |
2679 | /* Find the minimum MTU of all non-datapath devices attached to 'p'. | |
2680 | * Returns ETH_PAYLOAD_MAX or the minimum of the ports. */ | |
2681 | static int | |
2682 | find_min_mtu(struct ofproto *p) | |
2683 | { | |
2684 | struct ofport *ofport; | |
2685 | int mtu = 0; | |
2686 | ||
2687 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
2688 | struct netdev *netdev = ofport->netdev; | |
2689 | int dev_mtu; | |
2690 | ||
2691 | /* Skip any internal ports, since that's what we're trying to | |
2692 | * set. */ | |
2693 | if (!strcmp(netdev_get_type(netdev), "internal")) { | |
2694 | continue; | |
2695 | } | |
2696 | ||
2697 | if (netdev_get_mtu(netdev, &dev_mtu)) { | |
2698 | continue; | |
2699 | } | |
2700 | if (!mtu || dev_mtu < mtu) { | |
2701 | mtu = dev_mtu; | |
2702 | } | |
2703 | } | |
2704 | ||
2705 | return mtu ? mtu: ETH_PAYLOAD_MAX; | |
2706 | } | |
2707 | ||
ada3428f PS |
2708 | /* Update MTU of all datapath devices on 'p' to the minimum of the |
2709 | * non-datapath ports in event of 'port' added or changed. */ | |
9197df76 | 2710 | static void |
ada3428f | 2711 | update_mtu(struct ofproto *p, struct ofport *port) |
9197df76 JP |
2712 | { |
2713 | struct ofport *ofport; | |
ada3428f PS |
2714 | struct netdev *netdev = port->netdev; |
2715 | int dev_mtu, old_min; | |
2716 | ||
2717 | if (netdev_get_mtu(netdev, &dev_mtu)) { | |
2718 | port->mtu = 0; | |
2719 | return; | |
2720 | } | |
2721 | if (!strcmp(netdev_get_type(port->netdev), "internal")) { | |
2722 | if (dev_mtu > p->min_mtu) { | |
2723 | if (!netdev_set_mtu(port->netdev, p->min_mtu)) { | |
2724 | dev_mtu = p->min_mtu; | |
2725 | } | |
2726 | } | |
2727 | port->mtu = dev_mtu; | |
2728 | return; | |
2729 | } | |
2730 | ||
2731 | /* For non-internal port find new min mtu. */ | |
2732 | old_min = p->min_mtu; | |
2733 | port->mtu = dev_mtu; | |
2734 | p->min_mtu = find_min_mtu(p); | |
2735 | if (p->min_mtu == old_min) { | |
2736 | return; | |
2737 | } | |
9197df76 JP |
2738 | |
2739 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
2740 | struct netdev *netdev = ofport->netdev; | |
2741 | ||
2742 | if (!strcmp(netdev_get_type(netdev), "internal")) { | |
ada3428f PS |
2743 | if (!netdev_set_mtu(netdev, p->min_mtu)) { |
2744 | ofport->mtu = p->min_mtu; | |
2745 | } | |
9197df76 JP |
2746 | } |
2747 | } | |
2748 | } | |
064af421 | 2749 | \f |
f416c8d6 JR |
2750 | static void |
2751 | ofproto_rule_destroy__(struct rule *rule) | |
2752 | OVS_NO_THREAD_SAFETY_ANALYSIS | |
2753 | { | |
2754 | cls_rule_destroy(CONST_CAST(struct cls_rule *, &rule->cr)); | |
2755 | rule_actions_destroy(rule_get_actions(rule)); | |
2756 | ovs_mutex_destroy(&rule->mutex); | |
2757 | rule->ofproto->ofproto_class->rule_dealloc(rule); | |
2758 | } | |
2759 | ||
2760 | static void | |
2761 | rule_destroy_cb(struct rule *rule) | |
f695ebfa | 2762 | OVS_NO_THREAD_SAFETY_ANALYSIS |
f416c8d6 | 2763 | { |
f695ebfa JR |
2764 | /* Send rule removed if needed. */ |
2765 | if (rule->flags & OFPUTIL_FF_SEND_FLOW_REM | |
2766 | && rule->removed_reason != OVS_OFPRR_NONE | |
2767 | && !rule_is_hidden(rule)) { | |
2768 | ofproto_rule_send_removed(rule); | |
2769 | } | |
f416c8d6 JR |
2770 | rule->ofproto->ofproto_class->rule_destruct(rule); |
2771 | ofproto_rule_destroy__(rule); | |
2772 | } | |
2773 | ||
a2143702 BP |
2774 | void |
2775 | ofproto_rule_ref(struct rule *rule) | |
064af421 | 2776 | { |
1eae3d33 | 2777 | if (rule) { |
37bec3d3 | 2778 | ovs_refcount_ref(&rule->ref_count); |
a2143702 BP |
2779 | } |
2780 | } | |
2781 | ||
f5d16e55 JR |
2782 | bool |
2783 | ofproto_rule_try_ref(struct rule *rule) | |
2784 | { | |
2785 | if (rule) { | |
2786 | return ovs_refcount_try_ref_rcu(&rule->ref_count); | |
2787 | } | |
2788 | return false; | |
2789 | } | |
2790 | ||
f416c8d6 JR |
2791 | /* Decrements 'rule''s ref_count and schedules 'rule' to be destroyed if the |
2792 | * ref_count reaches 0. | |
2793 | * | |
2794 | * Use of RCU allows short term use (between RCU quiescent periods) without | |
2795 | * keeping a reference. A reference must be taken if the rule needs to | |
2796 | * stay around accross the RCU quiescent periods. */ | |
a2143702 BP |
2797 | void |
2798 | ofproto_rule_unref(struct rule *rule) | |
2799 | { | |
24f83812 | 2800 | if (rule && ovs_refcount_unref_relaxed(&rule->ref_count) == 1) { |
f416c8d6 | 2801 | ovsrcu_postpone(rule_destroy_cb, rule); |
1eae3d33 | 2802 | } |
064af421 BP |
2803 | } |
2804 | ||
39c94593 JR |
2805 | static void |
2806 | remove_rule_rcu__(struct rule *rule) | |
2807 | OVS_REQUIRES(ofproto_mutex) | |
2808 | { | |
2809 | struct ofproto *ofproto = rule->ofproto; | |
2810 | struct oftable *table = &ofproto->tables[rule->table_id]; | |
2811 | ||
2812 | ovs_assert(!cls_rule_visible_in_version(&rule->cr, CLS_MAX_VERSION)); | |
2813 | if (!classifier_remove(&table->cls, &rule->cr)) { | |
2814 | OVS_NOT_REACHED(); | |
2815 | } | |
2816 | ofproto->ofproto_class->rule_delete(rule); | |
2817 | ofproto_rule_unref(rule); | |
2818 | } | |
2819 | ||
2820 | static void | |
2821 | remove_rule_rcu(struct rule *rule) | |
2822 | OVS_EXCLUDED(ofproto_mutex) | |
2823 | { | |
2824 | ovs_mutex_lock(&ofproto_mutex); | |
2825 | remove_rule_rcu__(rule); | |
2826 | ovs_mutex_unlock(&ofproto_mutex); | |
2827 | } | |
2828 | ||
2829 | /* Removes and deletes rules from a NULL-terminated array of rule pointers. */ | |
2830 | static void | |
2831 | remove_rules_rcu(struct rule **rules) | |
2832 | OVS_EXCLUDED(ofproto_mutex) | |
2833 | { | |
2834 | struct rule **orig_rules = rules; | |
2835 | ||
2836 | if (*rules) { | |
2837 | struct ofproto *ofproto = rules[0]->ofproto; | |
2838 | unsigned long tables[BITMAP_N_LONGS(256)]; | |
2839 | struct rule *rule; | |
2840 | size_t table_id; | |
2841 | ||
2842 | memset(tables, 0, sizeof tables); | |
2843 | ||
2844 | ovs_mutex_lock(&ofproto_mutex); | |
2845 | while ((rule = *rules++)) { | |
2846 | /* Defer once for each new table. This defers the subtable cleanup | |
2847 | * until later, so that when removing large number of flows the | |
2848 | * operation is faster. */ | |
2849 | if (!bitmap_is_set(tables, rule->table_id)) { | |
2850 | struct classifier *cls = &ofproto->tables[rule->table_id].cls; | |
2851 | ||
2852 | bitmap_set1(tables, rule->table_id); | |
2853 | classifier_defer(cls); | |
2854 | } | |
2855 | remove_rule_rcu__(rule); | |
2856 | } | |
2857 | ||
2858 | BITMAP_FOR_EACH_1(table_id, 256, tables) { | |
2859 | struct classifier *cls = &ofproto->tables[table_id].cls; | |
2860 | ||
2861 | classifier_publish(cls); | |
2862 | } | |
2863 | ovs_mutex_unlock(&ofproto_mutex); | |
2864 | } | |
2865 | ||
2866 | free(orig_rules); | |
2867 | } | |
2868 | ||
809c7548 RW |
2869 | void |
2870 | ofproto_group_ref(struct ofgroup *group) | |
2871 | { | |
2872 | if (group) { | |
2873 | ovs_refcount_ref(&group->ref_count); | |
2874 | } | |
2875 | } | |
2876 | ||
2877 | void | |
2878 | ofproto_group_unref(struct ofgroup *group) | |
2879 | { | |
2880 | if (group && ovs_refcount_unref(&group->ref_count) == 1) { | |
2881 | group->ofproto->ofproto_class->group_destruct(group); | |
2882 | ofputil_bucket_list_destroy(&group->buckets); | |
2883 | group->ofproto->ofproto_class->group_dealloc(group); | |
2884 | } | |
2885 | } | |
2886 | ||
65efd2ab JR |
2887 | static uint32_t get_provider_meter_id(const struct ofproto *, |
2888 | uint32_t of_meter_id); | |
2889 | ||
dc723c44 JR |
2890 | /* Creates and returns a new 'struct rule_actions', whose actions are a copy |
2891 | * of from the 'ofpacts_len' bytes of 'ofpacts'. */ | |
2892 | const struct rule_actions * | |
4c7562c5 | 2893 | rule_actions_create(const struct ofpact *ofpacts, size_t ofpacts_len) |
6f00e29b BP |
2894 | { |
2895 | struct rule_actions *actions; | |
2896 | ||
dc723c44 | 2897 | actions = xmalloc(sizeof *actions + ofpacts_len); |
6f00e29b | 2898 | actions->ofpacts_len = ofpacts_len; |
4c7562c5 | 2899 | actions->has_meter = ofpacts_get_meter(ofpacts, ofpacts_len) != 0; |
dc723c44 | 2900 | memcpy(actions->ofpacts, ofpacts, ofpacts_len); |
65efd2ab | 2901 | |
35f48b8b BP |
2902 | actions->has_learn_with_delete = (next_learn_with_delete(actions, NULL) |
2903 | != NULL); | |
2904 | ||
6f00e29b BP |
2905 | return actions; |
2906 | } | |
2907 | ||
dc723c44 | 2908 | /* Free the actions after the RCU quiescent period is reached. */ |
6f00e29b | 2909 | void |
dc723c44 | 2910 | rule_actions_destroy(const struct rule_actions *actions) |
6f00e29b | 2911 | { |
06a0f3e2 | 2912 | if (actions) { |
dc723c44 | 2913 | ovsrcu_postpone(free, CONST_CAST(struct rule_actions *, actions)); |
6f00e29b BP |
2914 | } |
2915 | } | |
2916 | ||
bcf84111 | 2917 | /* Returns true if 'rule' has an OpenFlow OFPAT_OUTPUT or OFPAT_ENQUEUE action |
f25d0cf3 | 2918 | * that outputs to 'port' (output to OFPP_FLOOD and OFPP_ALL doesn't count). */ |
cdbdeeda | 2919 | bool |
4e022ec0 | 2920 | ofproto_rule_has_out_port(const struct rule *rule, ofp_port_t port) |
15aaf599 | 2921 | OVS_REQUIRES(ofproto_mutex) |
064af421 | 2922 | { |
06a0f3e2 BP |
2923 | if (port == OFPP_ANY) { |
2924 | return true; | |
2925 | } else { | |
2926 | const struct rule_actions *actions = rule_get_actions(rule); | |
2927 | return ofpacts_output_to_port(actions->ofpacts, | |
2928 | actions->ofpacts_len, port); | |
2929 | } | |
064af421 BP |
2930 | } |
2931 | ||
7395c052 | 2932 | /* Returns true if 'rule' has group and equals group_id. */ |
74e79b7c | 2933 | static bool |
7395c052 | 2934 | ofproto_rule_has_out_group(const struct rule *rule, uint32_t group_id) |
15aaf599 | 2935 | OVS_REQUIRES(ofproto_mutex) |
7395c052 | 2936 | { |
06a0f3e2 BP |
2937 | if (group_id == OFPG_ANY) { |
2938 | return true; | |
2939 | } else { | |
2940 | const struct rule_actions *actions = rule_get_actions(rule); | |
2941 | return ofpacts_output_to_group(actions->ofpacts, | |
2942 | actions->ofpacts_len, group_id); | |
2943 | } | |
7395c052 NZ |
2944 | } |
2945 | ||
35412852 BP |
2946 | static void |
2947 | rule_execute_destroy(struct rule_execute *e) | |
eedc0097 | 2948 | { |
35412852 BP |
2949 | ofproto_rule_unref(e->rule); |
2950 | list_remove(&e->list_node); | |
2951 | free(e); | |
2952 | } | |
eedc0097 | 2953 | |
35412852 BP |
2954 | /* Executes all "rule_execute" operations queued up in ofproto->rule_executes, |
2955 | * by passing them to the ofproto provider. */ | |
2956 | static void | |
2957 | run_rule_executes(struct ofproto *ofproto) | |
15aaf599 | 2958 | OVS_EXCLUDED(ofproto_mutex) |
35412852 BP |
2959 | { |
2960 | struct rule_execute *e, *next; | |
ca6ba700 | 2961 | struct ovs_list executes; |
35412852 BP |
2962 | |
2963 | guarded_list_pop_all(&ofproto->rule_executes, &executes); | |
2964 | LIST_FOR_EACH_SAFE (e, next, list_node, &executes) { | |
35412852 BP |
2965 | struct flow flow; |
2966 | ||
cf62fa4c | 2967 | flow_extract(e->packet, &flow); |
b5e7e61a | 2968 | flow.in_port.ofp_port = e->in_port; |
35412852 BP |
2969 | ofproto->ofproto_class->rule_execute(e->rule, &flow, e->packet); |
2970 | ||
2971 | rule_execute_destroy(e); | |
2972 | } | |
2973 | } | |
2974 | ||
2975 | /* Destroys and discards all "rule_execute" operations queued up in | |
2976 | * ofproto->rule_executes. */ | |
2977 | static void | |
2978 | destroy_rule_executes(struct ofproto *ofproto) | |
2979 | { | |
2980 | struct rule_execute *e, *next; | |
ca6ba700 | 2981 | struct ovs_list executes; |
35412852 BP |
2982 | |
2983 | guarded_list_pop_all(&ofproto->rule_executes, &executes); | |
2984 | LIST_FOR_EACH_SAFE (e, next, list_node, &executes) { | |
cf62fa4c | 2985 | dp_packet_delete(e->packet); |
35412852 BP |
2986 | rule_execute_destroy(e); |
2987 | } | |
350a665f BP |
2988 | } |
2989 | ||
adcf00ba | 2990 | static bool |
834fe5cb | 2991 | rule_is_readonly(const struct rule *rule) |
5c67e4af | 2992 | { |
834fe5cb BP |
2993 | const struct oftable *table = &rule->ofproto->tables[rule->table_id]; |
2994 | return (table->flags & OFTABLE_READONLY) != 0; | |
5c67e4af | 2995 | } |
fa066f01 | 2996 | \f |
35f48b8b BP |
2997 | static uint32_t |
2998 | hash_learned_cookie(ovs_be64 cookie_, uint8_t table_id) | |
2999 | { | |
3000 | uint64_t cookie = (OVS_FORCE uint64_t) cookie_; | |
3001 | return hash_3words(cookie, cookie >> 32, table_id); | |
3002 | } | |
3003 | ||
3004 | static void | |
3005 | learned_cookies_update_one__(struct ofproto *ofproto, | |
3006 | const struct ofpact_learn *learn, | |
ca6ba700 | 3007 | int delta, struct ovs_list *dead_cookies) |
35f48b8b BP |
3008 | OVS_REQUIRES(ofproto_mutex) |
3009 | { | |
3010 | uint32_t hash = hash_learned_cookie(learn->cookie, learn->table_id); | |
3011 | struct learned_cookie *c; | |
3012 | ||
3013 | HMAP_FOR_EACH_WITH_HASH (c, u.hmap_node, hash, &ofproto->learned_cookies) { | |
3014 | if (c->cookie == learn->cookie && c->table_id == learn->table_id) { | |
3015 | c->n += delta; | |
3016 | ovs_assert(c->n >= 0); | |
3017 | ||
3018 | if (!c->n) { | |
3019 | hmap_remove(&ofproto->learned_cookies, &c->u.hmap_node); | |
3020 | list_push_back(dead_cookies, &c->u.list_node); | |
3021 | } | |
3022 | ||
3023 | return; | |
3024 | } | |
3025 | } | |
3026 | ||
3027 | ovs_assert(delta > 0); | |
3028 | c = xmalloc(sizeof *c); | |
3029 | hmap_insert(&ofproto->learned_cookies, &c->u.hmap_node, hash); | |
3030 | c->cookie = learn->cookie; | |
3031 | c->table_id = learn->table_id; | |
3032 | c->n = delta; | |
3033 | } | |
3034 | ||
3035 | static const struct ofpact_learn * | |
3036 | next_learn_with_delete(const struct rule_actions *actions, | |
3037 | const struct ofpact_learn *start) | |
3038 | { | |
3039 | const struct ofpact *pos; | |
3040 | ||
3041 | for (pos = start ? ofpact_next(&start->ofpact) : actions->ofpacts; | |
3042 | pos < ofpact_end(actions->ofpacts, actions->ofpacts_len); | |
3043 | pos = ofpact_next(pos)) { | |
3044 | if (pos->type == OFPACT_LEARN) { | |
3045 | const struct ofpact_learn *learn = ofpact_get_LEARN(pos); | |
3046 | if (learn->flags & NX_LEARN_F_DELETE_LEARNED) { | |
3047 | return learn; | |
3048 | } | |
3049 | } | |
3050 | } | |
3051 | ||
3052 | return NULL; | |
3053 | } | |
3054 | ||
3055 | static void | |
3056 | learned_cookies_update__(struct ofproto *ofproto, | |
3057 | const struct rule_actions *actions, | |
ca6ba700 | 3058 | int delta, struct ovs_list *dead_cookies) |
35f48b8b BP |
3059 | OVS_REQUIRES(ofproto_mutex) |
3060 | { | |
3061 | if (actions->has_learn_with_delete) { | |
3062 | const struct ofpact_learn *learn; | |
3063 | ||
3064 | for (learn = next_learn_with_delete(actions, NULL); learn; | |
3065 | learn = next_learn_with_delete(actions, learn)) { | |
3066 | learned_cookies_update_one__(ofproto, learn, delta, dead_cookies); | |
3067 | } | |
3068 | } | |
3069 | } | |
3070 | ||
3071 | static void | |
3072 | learned_cookies_inc(struct ofproto *ofproto, | |
3073 | const struct rule_actions *actions) | |
3074 | OVS_REQUIRES(ofproto_mutex) | |
3075 | { | |
3076 | learned_cookies_update__(ofproto, actions, +1, NULL); | |
3077 | } | |
3078 | ||
3079 | static void | |
3080 | learned_cookies_dec(struct ofproto *ofproto, | |
3081 | const struct rule_actions *actions, | |
ca6ba700 | 3082 | struct ovs_list *dead_cookies) |
35f48b8b BP |
3083 | OVS_REQUIRES(ofproto_mutex) |
3084 | { | |
3085 | learned_cookies_update__(ofproto, actions, -1, dead_cookies); | |
3086 | } | |
3087 | ||
3088 | static void | |
ca6ba700 | 3089 | learned_cookies_flush(struct ofproto *ofproto, struct ovs_list *dead_cookies) |
35f48b8b BP |
3090 | OVS_REQUIRES(ofproto_mutex) |
3091 | { | |
5f03c983 | 3092 | struct learned_cookie *c; |
35f48b8b | 3093 | |
5f03c983 | 3094 | LIST_FOR_EACH_POP (c, u.list_node, dead_cookies) { |
35f48b8b BP |
3095 | struct rule_criteria criteria; |
3096 | struct rule_collection rules; | |
3097 | struct match match; | |
3098 | ||
3099 | match_init_catchall(&match); | |
2b7b1427 | 3100 | rule_criteria_init(&criteria, c->table_id, &match, 0, CLS_MAX_VERSION, |
35f48b8b BP |
3101 | c->cookie, OVS_BE64_MAX, OFPP_ANY, OFPG_ANY); |
3102 | rule_criteria_require_rw(&criteria, false); | |
3103 | collect_rules_loose(ofproto, &criteria, &rules); | |
35f48b8b | 3104 | rule_criteria_destroy(&criteria); |
39c94593 | 3105 | delete_flows__(&rules, OFPRR_DELETE, NULL); |
35f48b8b | 3106 | |
35f48b8b BP |
3107 | free(c); |
3108 | } | |
3109 | } | |
3110 | \f | |
90bf1e07 | 3111 | static enum ofperr |
d1e2cf21 | 3112 | handle_echo_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3113 | { |
b0421aa2 | 3114 | ofconn_send_reply(ofconn, make_echo_reply(oh)); |
064af421 | 3115 | return 0; |
064af421 BP |
3116 | } |
3117 | ||
3c1bb396 BP |
3118 | static void |
3119 | query_tables(struct ofproto *ofproto, | |
3120 | struct ofputil_table_features **featuresp, | |
3121 | struct ofputil_table_stats **statsp) | |
3122 | { | |
178742f9 BP |
3123 | struct mf_bitmap rw_fields = oxm_writable_fields(); |
3124 | struct mf_bitmap match = oxm_matchable_fields(); | |
3125 | struct mf_bitmap mask = oxm_maskable_fields(); | |
3c1bb396 BP |
3126 | |
3127 | struct ofputil_table_features *features; | |
3128 | struct ofputil_table_stats *stats; | |
3129 | int i; | |
3130 | ||
3c1bb396 BP |
3131 | features = *featuresp = xcalloc(ofproto->n_tables, sizeof *features); |
3132 | for (i = 0; i < ofproto->n_tables; i++) { | |
3133 | struct ofputil_table_features *f = &features[i]; | |
3134 | ||
3135 | f->table_id = i; | |
3136 | sprintf(f->name, "table%d", i); | |
3137 | f->metadata_match = OVS_BE64_MAX; | |
3138 | f->metadata_write = OVS_BE64_MAX; | |
afcea9ea | 3139 | atomic_read_relaxed(&ofproto->tables[i].miss_config, &f->miss_config); |
3c1bb396 BP |
3140 | f->max_entries = 1000000; |
3141 | ||
5dc7516b BP |
3142 | bool more_tables = false; |
3143 | for (int j = i + 1; j < ofproto->n_tables; j++) { | |
3144 | if (!(ofproto->tables[j].flags & OFTABLE_HIDDEN)) { | |
3145 | bitmap_set1(f->nonmiss.next, j); | |
3146 | more_tables = true; | |
3147 | } | |
3148 | } | |
3c1bb396 | 3149 | f->nonmiss.instructions = (1u << N_OVS_INSTRUCTIONS) - 1; |
5dc7516b | 3150 | if (!more_tables) { |
3c1bb396 BP |
3151 | f->nonmiss.instructions &= ~(1u << OVSINST_OFPIT11_GOTO_TABLE); |
3152 | } | |
3153 | f->nonmiss.write.ofpacts = (UINT64_C(1) << N_OFPACTS) - 1; | |
3154 | f->nonmiss.write.set_fields = rw_fields; | |
3155 | f->nonmiss.apply = f->nonmiss.write; | |
3156 | f->miss = f->nonmiss; | |
3157 | ||
3158 | f->match = match; | |
3159 | f->mask = mask; | |
3160 | f->wildcard = match; | |
3161 | } | |
3162 | ||
3163 | if (statsp) { | |
3164 | stats = *statsp = xcalloc(ofproto->n_tables, sizeof *stats); | |
3165 | for (i = 0; i < ofproto->n_tables; i++) { | |
3166 | struct ofputil_table_stats *s = &stats[i]; | |
3c1bb396 BP |
3167 | |
3168 | s->table_id = i; | |
d79e3d70 | 3169 | s->active_count = ofproto->tables[i].n_flows; |
3fbbcba7 BP |
3170 | if (i == 0) { |
3171 | s->active_count -= connmgr_count_hidden_rules( | |
3172 | ofproto->connmgr); | |
3173 | } | |
3c1bb396 BP |
3174 | } |
3175 | } else { | |
3176 | stats = NULL; | |
3177 | } | |
3178 | ||
3179 | ofproto->ofproto_class->query_tables(ofproto, features, stats); | |
3180 | ||
3181 | for (i = 0; i < ofproto->n_tables; i++) { | |
3182 | const struct oftable *table = &ofproto->tables[i]; | |
3183 | struct ofputil_table_features *f = &features[i]; | |
3184 | ||
3185 | if (table->name) { | |
3186 | ovs_strzcpy(f->name, table->name, sizeof f->name); | |
3187 | } | |
3188 | ||
3189 | if (table->max_flows < f->max_entries) { | |
3190 | f->max_entries = table->max_flows; | |
3191 | } | |
3192 | } | |
3193 | } | |
3194 | ||
3195 | static void | |
3196 | query_switch_features(struct ofproto *ofproto, | |
3197 | bool *arp_match_ip, uint64_t *ofpacts) | |
3198 | { | |
3199 | struct ofputil_table_features *features, *f; | |
3200 | ||
3201 | *arp_match_ip = false; | |
3202 | *ofpacts = 0; | |
3203 | ||
3204 | query_tables(ofproto, &features, NULL); | |
3205 | for (f = features; f < &features[ofproto->n_tables]; f++) { | |
3206 | *ofpacts |= f->nonmiss.apply.ofpacts | f->miss.apply.ofpacts; | |
3207 | if (bitmap_is_set(f->match.bm, MFF_ARP_SPA) || | |
3208 | bitmap_is_set(f->match.bm, MFF_ARP_TPA)) { | |
3209 | *arp_match_ip = true; | |
3210 | } | |
3211 | } | |
3212 | free(features); | |
3213 | ||
3214 | /* Sanity check. */ | |
3215 | ovs_assert(*ofpacts & (UINT64_C(1) << OFPACT_OUTPUT)); | |
3216 | } | |
3217 | ||
90bf1e07 | 3218 | static enum ofperr |
d1e2cf21 | 3219 | handle_features_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3220 | { |
64ff1d96 | 3221 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
9e1fd49b | 3222 | struct ofputil_switch_features features; |
064af421 | 3223 | struct ofport *port; |
6c1491fb | 3224 | bool arp_match_ip; |
9e1fd49b | 3225 | struct ofpbuf *b; |
064af421 | 3226 | |
3c1bb396 | 3227 | query_switch_features(ofproto, &arp_match_ip, &features.ofpacts); |
064af421 | 3228 | |
9e1fd49b BP |
3229 | features.datapath_id = ofproto->datapath_id; |
3230 | features.n_buffers = pktbuf_capacity(); | |
adcf00ba | 3231 | features.n_tables = ofproto_get_n_visible_tables(ofproto); |
9e1fd49b | 3232 | features.capabilities = (OFPUTIL_C_FLOW_STATS | OFPUTIL_C_TABLE_STATS | |
4efe455d BP |
3233 | OFPUTIL_C_PORT_STATS | OFPUTIL_C_QUEUE_STATS | |
3234 | OFPUTIL_C_GROUP_STATS); | |
6c1491fb | 3235 | if (arp_match_ip) { |
9e1fd49b | 3236 | features.capabilities |= OFPUTIL_C_ARP_MATCH_IP; |
6c1491fb | 3237 | } |
2e1ae200 JR |
3238 | /* FIXME: Fill in proper features.auxiliary_id for auxiliary connections */ |
3239 | features.auxiliary_id = 0; | |
9e1fd49b BP |
3240 | b = ofputil_encode_switch_features(&features, ofconn_get_protocol(ofconn), |
3241 | oh->xid); | |
64ff1d96 | 3242 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
9e1fd49b | 3243 | ofputil_put_switch_features_port(&port->pp, b); |
064af421 | 3244 | } |
064af421 | 3245 | |
9e1fd49b | 3246 | ofconn_send_reply(ofconn, b); |
064af421 BP |
3247 | return 0; |
3248 | } | |
064af421 | 3249 | |
90bf1e07 | 3250 | static enum ofperr |
d1e2cf21 | 3251 | handle_get_config_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3252 | { |
ad99e2ed BP |
3253 | struct ofputil_switch_config config; |
3254 | config.frag = ofconn_get_ofproto(ofconn)->frag_handling; | |
3255 | config.invalid_ttl_to_controller | |
3256 | = ofconn_get_invalid_ttl_to_controller(ofconn); | |
3257 | config.miss_send_len = ofconn_get_miss_send_len(ofconn); | |
3258 | ||
3259 | ofconn_send_reply(ofconn, ofputil_encode_get_config_reply(oh, &config)); | |
2d70a31a | 3260 | |
064af421 BP |
3261 | return 0; |
3262 | } | |
064af421 | 3263 | |
90bf1e07 | 3264 | static enum ofperr |
982697a4 | 3265 | handle_set_config(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3266 | { |
64ff1d96 | 3267 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
ad99e2ed BP |
3268 | struct ofputil_switch_config config; |
3269 | enum ofperr error; | |
3270 | ||
3271 | error = ofputil_decode_set_config(oh, &config); | |
3272 | if (error) { | |
3273 | return error; | |
3274 | } | |
2d70a31a | 3275 | |
7257b535 | 3276 | if (ofconn_get_type(ofconn) != OFCONN_PRIMARY |
f4f1ea7e | 3277 | || ofconn_get_role(ofconn) != OFPCR12_ROLE_SLAVE) { |
ad99e2ed BP |
3278 | enum ofputil_frag_handling cur = ofproto->frag_handling; |
3279 | enum ofputil_frag_handling next = config.frag; | |
7257b535 | 3280 | |
7257b535 BP |
3281 | if (cur != next) { |
3282 | if (ofproto->ofproto_class->set_frag_handling(ofproto, next)) { | |
3283 | ofproto->frag_handling = next; | |
3284 | } else { | |
3285 | VLOG_WARN_RL(&rl, "%s: unsupported fragment handling mode %s", | |
3286 | ofproto->name, | |
3287 | ofputil_frag_handling_to_string(next)); | |
3288 | } | |
064af421 BP |
3289 | } |
3290 | } | |
ebe482fd | 3291 | |
ad99e2ed BP |
3292 | if (config.invalid_ttl_to_controller >= 0) { |
3293 | ofconn_set_invalid_ttl_to_controller(ofconn, | |
3294 | config.invalid_ttl_to_controller); | |
3295 | } | |
3296 | ||
3297 | ofconn_set_miss_send_len(ofconn, config.miss_send_len); | |
0ad9b732 | 3298 | |
064af421 | 3299 | return 0; |
064af421 BP |
3300 | } |
3301 | ||
9deba63b | 3302 | /* Checks whether 'ofconn' is a slave controller. If so, returns an OpenFlow |
90bf1e07 BP |
3303 | * error message code for the caller to propagate upward. Otherwise, returns |
3304 | * 0. | |
3305 | * | |
3306 | * The log message mentions 'msg_type'. */ | |
3307 | static enum ofperr | |
3308 | reject_slave_controller(struct ofconn *ofconn) | |
9deba63b | 3309 | { |
1ce0a5fa | 3310 | if (ofconn_get_type(ofconn) == OFCONN_PRIMARY |
f4f1ea7e | 3311 | && ofconn_get_role(ofconn) == OFPCR12_ROLE_SLAVE) { |
20e4ec1a | 3312 | return OFPERR_OFPBRC_IS_SLAVE; |
9deba63b BP |
3313 | } else { |
3314 | return 0; | |
3315 | } | |
3316 | } | |
3317 | ||
7e9f8266 BP |
3318 | /* Checks that the 'ofpacts_len' bytes of action in 'ofpacts' are appropriate |
3319 | * for 'ofproto': | |
3320 | * | |
3321 | * - If they use a meter, then 'ofproto' has that meter configured. | |
3322 | * | |
3323 | * - If they use any groups, then 'ofproto' has that group configured. | |
3324 | * | |
3325 | * Returns 0 if successful, otherwise an OpenFlow error. */ | |
89108874 | 3326 | enum ofperr |
9cae45dc | 3327 | ofproto_check_ofpacts(struct ofproto *ofproto, |
7e9f8266 | 3328 | const struct ofpact ofpacts[], size_t ofpacts_len) |
9cae45dc | 3329 | { |
84d68566 | 3330 | const struct ofpact *a; |
9cae45dc JR |
3331 | uint32_t mid; |
3332 | ||
7e9f8266 BP |
3333 | mid = ofpacts_get_meter(ofpacts, ofpacts_len); |
3334 | if (mid && get_provider_meter_id(ofproto, mid) == UINT32_MAX) { | |
3335 | return OFPERR_OFPMMFC_INVALID_METER; | |
9cae45dc JR |
3336 | } |
3337 | ||
4f20179d | 3338 | OFPACT_FOR_EACH_FLATTENED (a, ofpacts, ofpacts_len) { |
7e9f8266 BP |
3339 | if (a->type == OFPACT_GROUP |
3340 | && !ofproto_group_exists(ofproto, ofpact_get_GROUP(a)->group_id)) { | |
3341 | return OFPERR_OFPBAC_BAD_OUT_GROUP; | |
84d68566 SH |
3342 | } |
3343 | } | |
3344 | ||
9cae45dc JR |
3345 | return 0; |
3346 | } | |
3347 | ||
90bf1e07 | 3348 | static enum ofperr |
982697a4 | 3349 | handle_packet_out(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3350 | { |
64ff1d96 | 3351 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
c6a93eb7 | 3352 | struct ofputil_packet_out po; |
cf62fa4c | 3353 | struct dp_packet *payload; |
f25d0cf3 BP |
3354 | uint64_t ofpacts_stub[1024 / 8]; |
3355 | struct ofpbuf ofpacts; | |
ae412e7d | 3356 | struct flow flow; |
90bf1e07 | 3357 | enum ofperr error; |
064af421 | 3358 | |
ac51afaf BP |
3359 | COVERAGE_INC(ofproto_packet_out); |
3360 | ||
76589937 | 3361 | error = reject_slave_controller(ofconn); |
9deba63b | 3362 | if (error) { |
f25d0cf3 | 3363 | goto exit; |
9deba63b BP |
3364 | } |
3365 | ||
c6a93eb7 | 3366 | /* Decode message. */ |
f25d0cf3 | 3367 | ofpbuf_use_stub(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); |
982697a4 | 3368 | error = ofputil_decode_packet_out(&po, oh, &ofpacts); |
064af421 | 3369 | if (error) { |
f25d0cf3 | 3370 | goto exit_free_ofpacts; |
064af421 | 3371 | } |
430dbb14 | 3372 | if (ofp_to_u16(po.in_port) >= p->max_ports |
4e022ec0 | 3373 | && ofp_to_u16(po.in_port) < ofp_to_u16(OFPP_MAX)) { |
2e1bfcb6 | 3374 | error = OFPERR_OFPBRC_BAD_PORT; |
91858960 BP |
3375 | goto exit_free_ofpacts; |
3376 | } | |
064af421 | 3377 | |
ac51afaf | 3378 | /* Get payload. */ |
c6a93eb7 BP |
3379 | if (po.buffer_id != UINT32_MAX) { |
3380 | error = ofconn_pktbuf_retrieve(ofconn, po.buffer_id, &payload, NULL); | |
3381 | if (error || !payload) { | |
f25d0cf3 | 3382 | goto exit_free_ofpacts; |
064af421 | 3383 | } |
064af421 | 3384 | } else { |
bb622f82 | 3385 | /* Ensure that the L3 header is 32-bit aligned. */ |
cf62fa4c | 3386 | payload = dp_packet_clone_data_with_headroom(po.packet, po.packet_len, 2); |
e1154f71 BP |
3387 | } |
3388 | ||
548de4dd | 3389 | /* Verify actions against packet, then send packet if successful. */ |
cf62fa4c | 3390 | flow_extract(payload, &flow); |
b5e7e61a | 3391 | flow.in_port.ofp_port = po.in_port; |
89108874 JR |
3392 | |
3393 | /* Check actions like for flow mods. We pass a 'table_id' of 0 to | |
3394 | * ofproto_check_consistency(), which isn't strictly correct because these | |
3395 | * actions aren't in any table. This is OK as 'table_id' is only used to | |
3396 | * check instructions (e.g., goto-table), which can't appear on the action | |
3397 | * list of a packet-out. */ | |
3398 | error = ofpacts_check_consistency(po.ofpacts, po.ofpacts_len, | |
3399 | &flow, u16_to_ofp(p->max_ports), | |
3400 | 0, p->n_tables, | |
3401 | ofconn_get_protocol(ofconn)); | |
548de4dd | 3402 | if (!error) { |
89108874 JR |
3403 | error = ofproto_check_ofpacts(p, po.ofpacts, po.ofpacts_len); |
3404 | if (!error) { | |
3405 | error = p->ofproto_class->packet_out(p, payload, &flow, | |
3406 | po.ofpacts, po.ofpacts_len); | |
3407 | } | |
548de4dd | 3408 | } |
cf62fa4c | 3409 | dp_packet_delete(payload); |
abe529af | 3410 | |
f25d0cf3 BP |
3411 | exit_free_ofpacts: |
3412 | ofpbuf_uninit(&ofpacts); | |
3413 | exit: | |
abe529af | 3414 | return error; |
064af421 BP |
3415 | } |
3416 | ||
3417 | static void | |
2a6f78e0 | 3418 | update_port_config(struct ofconn *ofconn, struct ofport *port, |
9e1fd49b BP |
3419 | enum ofputil_port_config config, |
3420 | enum ofputil_port_config mask) | |
064af421 | 3421 | { |
2a6f78e0 | 3422 | enum ofputil_port_config toggle = (config ^ port->pp.config) & mask; |
abe529af | 3423 | |
2a6f78e0 BP |
3424 | if (toggle & OFPUTIL_PC_PORT_DOWN |
3425 | && (config & OFPUTIL_PC_PORT_DOWN | |
3426 | ? netdev_turn_flags_off(port->netdev, NETDEV_UP, NULL) | |
3427 | : netdev_turn_flags_on(port->netdev, NETDEV_UP, NULL))) { | |
3428 | /* We tried to bring the port up or down, but it failed, so don't | |
3429 | * update the "down" bit. */ | |
9e1fd49b | 3430 | toggle &= ~OFPUTIL_PC_PORT_DOWN; |
064af421 | 3431 | } |
abe529af | 3432 | |
2a6f78e0 BP |
3433 | if (toggle) { |
3434 | enum ofputil_port_config old_config = port->pp.config; | |
3435 | port->pp.config ^= toggle; | |
abe529af | 3436 | port->ofproto->ofproto_class->port_reconfigured(port, old_config); |
2a6f78e0 BP |
3437 | connmgr_send_port_status(port->ofproto->connmgr, ofconn, &port->pp, |
3438 | OFPPR_MODIFY); | |
064af421 BP |
3439 | } |
3440 | } | |
3441 | ||
90bf1e07 | 3442 | static enum ofperr |
1c38055d JR |
3443 | port_mod_start(struct ofconn *ofconn, struct ofputil_port_mod *pm, |
3444 | struct ofport **port) | |
064af421 | 3445 | { |
64ff1d96 | 3446 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
1c38055d JR |
3447 | |
3448 | *port = ofproto_get_port(p, pm->port_no); | |
3449 | if (!*port) { | |
3450 | return OFPERR_OFPPMFC_BAD_PORT; | |
3451 | } | |
3452 | if (!eth_addr_equals((*port)->pp.hw_addr, pm->hw_addr)) { | |
3453 | return OFPERR_OFPPMFC_BAD_HW_ADDR; | |
3454 | } | |
3455 | return 0; | |
3456 | } | |
3457 | ||
3458 | static void | |
3459 | port_mod_finish(struct ofconn *ofconn, struct ofputil_port_mod *pm, | |
3460 | struct ofport *port) | |
3461 | { | |
3462 | update_port_config(ofconn, port, pm->config, pm->mask); | |
3463 | if (pm->advertise) { | |
3464 | netdev_set_advertisements(port->netdev, pm->advertise); | |
3465 | } | |
3466 | } | |
3467 | ||
3468 | static enum ofperr | |
3469 | handle_port_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
3470 | { | |
9e1fd49b | 3471 | struct ofputil_port_mod pm; |
064af421 | 3472 | struct ofport *port; |
9e1fd49b | 3473 | enum ofperr error; |
064af421 | 3474 | |
76589937 | 3475 | error = reject_slave_controller(ofconn); |
9deba63b BP |
3476 | if (error) { |
3477 | return error; | |
3478 | } | |
064af421 | 3479 | |
18cc69d9 | 3480 | error = ofputil_decode_port_mod(oh, &pm, false); |
9e1fd49b BP |
3481 | if (error) { |
3482 | return error; | |
3483 | } | |
3484 | ||
1c38055d JR |
3485 | error = port_mod_start(ofconn, &pm, &port); |
3486 | if (!error) { | |
3487 | port_mod_finish(ofconn, &pm, port); | |
064af421 | 3488 | } |
1c38055d | 3489 | return error; |
064af421 BP |
3490 | } |
3491 | ||
90bf1e07 | 3492 | static enum ofperr |
3269c562 | 3493 | handle_desc_stats_request(struct ofconn *ofconn, |
982697a4 | 3494 | const struct ofp_header *request) |
064af421 | 3495 | { |
061bfea4 BP |
3496 | static const char *default_mfr_desc = "Nicira, Inc."; |
3497 | static const char *default_hw_desc = "Open vSwitch"; | |
3498 | static const char *default_sw_desc = VERSION; | |
3499 | static const char *default_serial_desc = "None"; | |
3500 | static const char *default_dp_desc = "None"; | |
3501 | ||
64ff1d96 | 3502 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 BP |
3503 | struct ofp_desc_stats *ods; |
3504 | struct ofpbuf *msg; | |
3505 | ||
982697a4 BP |
3506 | msg = ofpraw_alloc_stats_reply(request, 0); |
3507 | ods = ofpbuf_put_zeros(msg, sizeof *ods); | |
061bfea4 BP |
3508 | ovs_strlcpy(ods->mfr_desc, p->mfr_desc ? p->mfr_desc : default_mfr_desc, |
3509 | sizeof ods->mfr_desc); | |
3510 | ovs_strlcpy(ods->hw_desc, p->hw_desc ? p->hw_desc : default_hw_desc, | |
3511 | sizeof ods->hw_desc); | |
3512 | ovs_strlcpy(ods->sw_desc, p->sw_desc ? p->sw_desc : default_sw_desc, | |
3513 | sizeof ods->sw_desc); | |
3514 | ovs_strlcpy(ods->serial_num, | |
3515 | p->serial_desc ? p->serial_desc : default_serial_desc, | |
3516 | sizeof ods->serial_num); | |
3517 | ovs_strlcpy(ods->dp_desc, p->dp_desc ? p->dp_desc : default_dp_desc, | |
3518 | sizeof ods->dp_desc); | |
b0421aa2 | 3519 | ofconn_send_reply(ofconn, msg); |
064af421 BP |
3520 | |
3521 | return 0; | |
3522 | } | |
3523 | ||
90bf1e07 | 3524 | static enum ofperr |
3269c562 | 3525 | handle_table_stats_request(struct ofconn *ofconn, |
982697a4 | 3526 | const struct ofp_header *request) |
064af421 | 3527 | { |
3c1bb396 BP |
3528 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
3529 | struct ofputil_table_features *features; | |
08d1e234 | 3530 | struct ofputil_table_stats *stats; |
3c1bb396 | 3531 | struct ofpbuf *reply; |
6c1491fb | 3532 | size_t i; |
064af421 | 3533 | |
3c1bb396 | 3534 | query_tables(ofproto, &features, &stats); |
254750ce | 3535 | |
3c1bb396 BP |
3536 | reply = ofputil_encode_table_stats_reply(request); |
3537 | for (i = 0; i < ofproto->n_tables; i++) { | |
3538 | if (!(ofproto->tables[i].flags & OFTABLE_HIDDEN)) { | |
3539 | ofputil_append_table_stats_reply(reply, &stats[i], &features[i]); | |
254750ce BP |
3540 | } |
3541 | } | |
3c1bb396 | 3542 | ofconn_send_reply(ofconn, reply); |
254750ce | 3543 | |
3c1bb396 | 3544 | free(features); |
08d1e234 | 3545 | free(stats); |
307975da | 3546 | |
064af421 BP |
3547 | return 0; |
3548 | } | |
3549 | ||
3c4e10fb BP |
3550 | static enum ofperr |
3551 | handle_table_features_request(struct ofconn *ofconn, | |
3552 | const struct ofp_header *request) | |
3553 | { | |
3554 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
3555 | struct ofputil_table_features *features; | |
ca6ba700 | 3556 | struct ovs_list replies; |
3c4e10fb BP |
3557 | struct ofpbuf msg; |
3558 | size_t i; | |
3559 | ||
3560 | ofpbuf_use_const(&msg, request, ntohs(request->length)); | |
3561 | ofpraw_pull_assert(&msg); | |
6fd6ed71 | 3562 | if (msg.size || ofpmp_more(request)) { |
3c4e10fb BP |
3563 | return OFPERR_OFPTFFC_EPERM; |
3564 | } | |
3565 | ||
3566 | query_tables(ofproto, &features, NULL); | |
3567 | ||
3568 | ofpmp_init(&replies, request); | |
3569 | for (i = 0; i < ofproto->n_tables; i++) { | |
3570 | if (!(ofproto->tables[i].flags & OFTABLE_HIDDEN)) { | |
3571 | ofputil_append_table_features_reply(&features[i], &replies); | |
3572 | } | |
3573 | } | |
3574 | ofconn_send_replies(ofconn, &replies); | |
3575 | ||
3576 | free(features); | |
3577 | ||
3578 | return 0; | |
3579 | } | |
3580 | ||
bab86012 SJ |
3581 | static void |
3582 | query_table_desc__(struct ofputil_table_desc *td, | |
3583 | struct ofproto *ofproto, uint8_t table_id) | |
3584 | { | |
3585 | unsigned int count = ofproto->tables[table_id].n_flows; | |
3586 | unsigned int max_flows = ofproto->tables[table_id].max_flows; | |
3587 | ||
3588 | td->table_id = table_id; | |
3589 | td->eviction = (ofproto->tables[table_id].eviction & EVICTION_OPENFLOW | |
3590 | ? OFPUTIL_TABLE_EVICTION_ON | |
3591 | : OFPUTIL_TABLE_EVICTION_OFF); | |
3592 | td->eviction_flags = OFPROTO_EVICTION_FLAGS; | |
3593 | td->vacancy = (ofproto->tables[table_id].vacancy_enabled | |
3594 | ? OFPUTIL_TABLE_VACANCY_ON | |
3595 | : OFPUTIL_TABLE_VACANCY_OFF); | |
3596 | td->table_vacancy.vacancy_down = ofproto->tables[table_id].vacancy_down; | |
3597 | td->table_vacancy.vacancy_up = ofproto->tables[table_id].vacancy_up; | |
3598 | td->table_vacancy.vacancy = max_flows ? (count * 100) / max_flows : 0; | |
3599 | } | |
3600 | ||
03c72922 BP |
3601 | /* This function queries the database for dumping table-desc. */ |
3602 | static void | |
3603 | query_tables_desc(struct ofproto *ofproto, struct ofputil_table_desc **descp) | |
3604 | { | |
3605 | struct ofputil_table_desc *table_desc; | |
3606 | size_t i; | |
3607 | ||
3608 | table_desc = *descp = xcalloc(ofproto->n_tables, sizeof *table_desc); | |
3609 | for (i = 0; i < ofproto->n_tables; i++) { | |
3610 | struct ofputil_table_desc *td = &table_desc[i]; | |
bab86012 | 3611 | query_table_desc__(td, ofproto, i); |
03c72922 BP |
3612 | } |
3613 | } | |
3614 | ||
3615 | /* Function to handle dump-table-desc request. */ | |
3616 | static enum ofperr | |
3617 | handle_table_desc_request(struct ofconn *ofconn, | |
3618 | const struct ofp_header *request) | |
3619 | { | |
3620 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
3621 | struct ofputil_table_desc *table_desc; | |
3622 | struct ovs_list replies; | |
3623 | size_t i; | |
3624 | ||
3625 | query_tables_desc(ofproto, &table_desc); | |
3626 | ofpmp_init(&replies, request); | |
3627 | for (i = 0; i < ofproto->n_tables; i++) { | |
3628 | if (!(ofproto->tables[i].flags & OFTABLE_HIDDEN)) { | |
3629 | ofputil_append_table_desc_reply(&table_desc[i], &replies, | |
3630 | request->version); | |
3631 | } | |
3632 | } | |
3633 | ofconn_send_replies(ofconn, &replies); | |
3634 | free(table_desc); | |
3635 | return 0; | |
3636 | } | |
3637 | ||
abaad8cf | 3638 | static void |
ca6ba700 | 3639 | append_port_stat(struct ofport *port, struct ovs_list *replies) |
abaad8cf | 3640 | { |
f8e4867e | 3641 | struct ofputil_port_stats ops = { .port_no = port->pp.port_no }; |
abaad8cf | 3642 | |
65e0be10 BP |
3643 | calc_duration(port->created, time_msec(), |
3644 | &ops.duration_sec, &ops.duration_nsec); | |
3645 | ||
d295e8e9 JP |
3646 | /* Intentionally ignore return value, since errors will set |
3647 | * 'stats' to all-1s, which is correct for OpenFlow, and | |
abaad8cf | 3648 | * netdev_get_stats() will log errors. */ |
f8e4867e SH |
3649 | ofproto_port_get_stats(port, &ops.stats); |
3650 | ||
3651 | ofputil_append_port_stat(replies, &ops); | |
abaad8cf JP |
3652 | } |
3653 | ||
70ae4f93 BP |
3654 | static void |
3655 | handle_port_request(struct ofconn *ofconn, | |
3656 | const struct ofp_header *request, ofp_port_t port_no, | |
ca6ba700 | 3657 | void (*cb)(struct ofport *, struct ovs_list *replies)) |
064af421 | 3658 | { |
70ae4f93 | 3659 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
064af421 | 3660 | struct ofport *port; |
ca6ba700 | 3661 | struct ovs_list replies; |
064af421 | 3662 | |
982697a4 | 3663 | ofpmp_init(&replies, request); |
7f05e7ab | 3664 | if (port_no != OFPP_ANY) { |
70ae4f93 | 3665 | port = ofproto_get_port(ofproto, port_no); |
abaad8cf | 3666 | if (port) { |
70ae4f93 | 3667 | cb(port, &replies); |
abaad8cf JP |
3668 | } |
3669 | } else { | |
70ae4f93 BP |
3670 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
3671 | cb(port, &replies); | |
abaad8cf | 3672 | } |
064af421 BP |
3673 | } |
3674 | ||
63f2140a | 3675 | ofconn_send_replies(ofconn, &replies); |
70ae4f93 BP |
3676 | } |
3677 | ||
3678 | static enum ofperr | |
3679 | handle_port_stats_request(struct ofconn *ofconn, | |
3680 | const struct ofp_header *request) | |
3681 | { | |
3682 | ofp_port_t port_no; | |
3683 | enum ofperr error; | |
3684 | ||
3685 | error = ofputil_decode_port_stats_request(request, &port_no); | |
3686 | if (!error) { | |
3687 | handle_port_request(ofconn, request, port_no, append_port_stat); | |
3688 | } | |
3689 | return error; | |
3690 | } | |
3691 | ||
3692 | static void | |
ca6ba700 | 3693 | append_port_desc(struct ofport *port, struct ovs_list *replies) |
70ae4f93 BP |
3694 | { |
3695 | ofputil_append_port_desc_stats_reply(&port->pp, replies); | |
064af421 BP |
3696 | } |
3697 | ||
2be393ed JP |
3698 | static enum ofperr |
3699 | handle_port_desc_stats_request(struct ofconn *ofconn, | |
982697a4 | 3700 | const struct ofp_header *request) |
2be393ed | 3701 | { |
70ae4f93 BP |
3702 | ofp_port_t port_no; |
3703 | enum ofperr error; | |
2be393ed | 3704 | |
70ae4f93 BP |
3705 | error = ofputil_decode_port_desc_stats_request(request, &port_no); |
3706 | if (!error) { | |
3707 | handle_port_request(ofconn, request, port_no, append_port_desc); | |
2be393ed | 3708 | } |
70ae4f93 | 3709 | return error; |
2be393ed JP |
3710 | } |
3711 | ||
98eaac36 JR |
3712 | static uint32_t |
3713 | hash_cookie(ovs_be64 cookie) | |
3714 | { | |
965607c8 | 3715 | return hash_uint64((OVS_FORCE uint64_t)cookie); |
98eaac36 JR |
3716 | } |
3717 | ||
3718 | static void | |
3719 | cookies_insert(struct ofproto *ofproto, struct rule *rule) | |
2c916028 | 3720 | OVS_REQUIRES(ofproto_mutex) |
98eaac36 JR |
3721 | { |
3722 | hindex_insert(&ofproto->cookies, &rule->cookie_node, | |
3723 | hash_cookie(rule->flow_cookie)); | |
3724 | } | |
3725 | ||
3726 | static void | |
3727 | cookies_remove(struct ofproto *ofproto, struct rule *rule) | |
2c916028 | 3728 | OVS_REQUIRES(ofproto_mutex) |
98eaac36 JR |
3729 | { |
3730 | hindex_remove(&ofproto->cookies, &rule->cookie_node); | |
3731 | } | |
3732 | ||
c6ebb8fb | 3733 | static void |
65e0be10 BP |
3734 | calc_duration(long long int start, long long int now, |
3735 | uint32_t *sec, uint32_t *nsec) | |
c6ebb8fb | 3736 | { |
f27f2134 | 3737 | long long int msecs = now - start; |
588cd7b5 BP |
3738 | *sec = msecs / 1000; |
3739 | *nsec = (msecs % 1000) * (1000 * 1000); | |
3740 | } | |
3741 | ||
48266274 | 3742 | /* Checks whether 'table_id' is 0xff or a valid table ID in 'ofproto'. Returns |
554764d1 SH |
3743 | * true if 'table_id' is OK, false otherwise. */ |
3744 | static bool | |
48266274 BP |
3745 | check_table_id(const struct ofproto *ofproto, uint8_t table_id) |
3746 | { | |
554764d1 | 3747 | return table_id == OFPTT_ALL || table_id < ofproto->n_tables; |
48266274 BP |
3748 | } |
3749 | ||
5c67e4af | 3750 | static struct oftable * |
d4ce8a49 | 3751 | next_visible_table(const struct ofproto *ofproto, uint8_t table_id) |
5c67e4af BP |
3752 | { |
3753 | struct oftable *table; | |
3754 | ||
3755 | for (table = &ofproto->tables[table_id]; | |
3756 | table < &ofproto->tables[ofproto->n_tables]; | |
3757 | table++) { | |
3758 | if (!(table->flags & OFTABLE_HIDDEN)) { | |
3759 | return table; | |
3760 | } | |
3761 | } | |
3762 | ||
3763 | return NULL; | |
3764 | } | |
3765 | ||
d0918789 | 3766 | static struct oftable * |
d4ce8a49 | 3767 | first_matching_table(const struct ofproto *ofproto, uint8_t table_id) |
064af421 | 3768 | { |
6c1491fb | 3769 | if (table_id == 0xff) { |
5c67e4af | 3770 | return next_visible_table(ofproto, 0); |
6c1491fb BP |
3771 | } else if (table_id < ofproto->n_tables) { |
3772 | return &ofproto->tables[table_id]; | |
a02e5331 | 3773 | } else { |
6c1491fb | 3774 | return NULL; |
a02e5331 | 3775 | } |
064af421 BP |
3776 | } |
3777 | ||
d0918789 | 3778 | static struct oftable * |
d4ce8a49 BP |
3779 | next_matching_table(const struct ofproto *ofproto, |
3780 | const struct oftable *table, uint8_t table_id) | |
6c1491fb | 3781 | { |
5c67e4af BP |
3782 | return (table_id == 0xff |
3783 | ? next_visible_table(ofproto, (table - ofproto->tables) + 1) | |
6c1491fb BP |
3784 | : NULL); |
3785 | } | |
3786 | ||
d0918789 | 3787 | /* Assigns TABLE to each oftable, in turn, that matches TABLE_ID in OFPROTO: |
6c1491fb BP |
3788 | * |
3789 | * - If TABLE_ID is 0xff, this iterates over every classifier table in | |
5c67e4af | 3790 | * OFPROTO, skipping tables marked OFTABLE_HIDDEN. |
6c1491fb BP |
3791 | * |
3792 | * - If TABLE_ID is the number of a table in OFPROTO, then the loop iterates | |
5c67e4af BP |
3793 | * only once, for that table. (This can be used to access tables marked |
3794 | * OFTABLE_HIDDEN.) | |
6c1491fb | 3795 | * |
48266274 BP |
3796 | * - Otherwise, TABLE_ID isn't valid for OFPROTO, so the loop won't be |
3797 | * entered at all. (Perhaps you should have validated TABLE_ID with | |
3798 | * check_table_id().) | |
6c1491fb BP |
3799 | * |
3800 | * All parameters are evaluated multiple times. | |
3801 | */ | |
d0918789 BP |
3802 | #define FOR_EACH_MATCHING_TABLE(TABLE, TABLE_ID, OFPROTO) \ |
3803 | for ((TABLE) = first_matching_table(OFPROTO, TABLE_ID); \ | |
3804 | (TABLE) != NULL; \ | |
3805 | (TABLE) = next_matching_table(OFPROTO, TABLE, TABLE_ID)) | |
6c1491fb | 3806 | |
a9b22b7f BP |
3807 | /* Initializes 'criteria' in a straightforward way based on the other |
3808 | * parameters. | |
3809 | * | |
dd51dae2 BP |
3810 | * By default, the criteria include flows that are read-only, on the assumption |
3811 | * that the collected flows won't be modified. Call rule_criteria_require_rw() | |
3812 | * if flows will be modified. | |
3813 | * | |
a9b22b7f BP |
3814 | * For "loose" matching, the 'priority' parameter is unimportant and may be |
3815 | * supplied as 0. */ | |
3816 | static void | |
3817 | rule_criteria_init(struct rule_criteria *criteria, uint8_t table_id, | |
18721c4a JR |
3818 | const struct match *match, int priority, |
3819 | cls_version_t version, ovs_be64 cookie, | |
3820 | ovs_be64 cookie_mask, ofp_port_t out_port, | |
3821 | uint32_t out_group) | |
a9b22b7f BP |
3822 | { |
3823 | criteria->table_id = table_id; | |
bd53aa17 JR |
3824 | cls_rule_init(&criteria->cr, match, priority); |
3825 | criteria->version = version; | |
a9b22b7f BP |
3826 | criteria->cookie = cookie; |
3827 | criteria->cookie_mask = cookie_mask; | |
3828 | criteria->out_port = out_port; | |
3829 | criteria->out_group = out_group; | |
dd51dae2 BP |
3830 | |
3831 | /* We ordinarily want to skip hidden rules, but there has to be a way for | |
3832 | * code internal to OVS to modify and delete them, so if the criteria | |
3833 | * specify a priority that can only be for a hidden flow, then allow hidden | |
3834 | * rules to be selected. (This doesn't allow OpenFlow clients to meddle | |
3835 | * with hidden flows because OpenFlow uses only a 16-bit field to specify | |
3836 | * priority.) */ | |
3837 | criteria->include_hidden = priority > UINT16_MAX; | |
3838 | ||
3839 | /* We assume that the criteria are being used to collect flows for reading | |
3840 | * but not modification. Thus, we should collect read-only flows. */ | |
3841 | criteria->include_readonly = true; | |
3842 | } | |
3843 | ||
3844 | /* By default, criteria initialized by rule_criteria_init() will match flows | |
3845 | * that are read-only, on the assumption that the collected flows won't be | |
3846 | * modified. Call this function to match only flows that are be modifiable. | |
3847 | * | |
3848 | * Specify 'can_write_readonly' as false in ordinary circumstances, true if the | |
3849 | * caller has special privileges that allow it to modify even "read-only" | |
3850 | * flows. */ | |
3851 | static void | |
3852 | rule_criteria_require_rw(struct rule_criteria *criteria, | |
3853 | bool can_write_readonly) | |
3854 | { | |
3855 | criteria->include_readonly = can_write_readonly; | |
a9b22b7f BP |
3856 | } |
3857 | ||
3858 | static void | |
3859 | rule_criteria_destroy(struct rule_criteria *criteria) | |
3860 | { | |
3861 | cls_rule_destroy(&criteria->cr); | |
3862 | } | |
3863 | ||
a8e547c1 BP |
3864 | void |
3865 | rule_collection_init(struct rule_collection *rules) | |
3866 | { | |
3867 | rules->rules = rules->stub; | |
3868 | rules->n = 0; | |
3869 | rules->capacity = ARRAY_SIZE(rules->stub); | |
3870 | } | |
3871 | ||
3872 | void | |
3873 | rule_collection_add(struct rule_collection *rules, struct rule *rule) | |
3874 | { | |
3875 | if (rules->n >= rules->capacity) { | |
3876 | size_t old_size, new_size; | |
3877 | ||
3878 | old_size = rules->capacity * sizeof *rules->rules; | |
3879 | rules->capacity *= 2; | |
3880 | new_size = rules->capacity * sizeof *rules->rules; | |
3881 | ||
3882 | if (rules->rules == rules->stub) { | |
3883 | rules->rules = xmalloc(new_size); | |
3884 | memcpy(rules->rules, rules->stub, old_size); | |
3885 | } else { | |
3886 | rules->rules = xrealloc(rules->rules, new_size); | |
3887 | } | |
3888 | } | |
3889 | ||
3890 | rules->rules[rules->n++] = rule; | |
3891 | } | |
3892 | ||
15aaf599 BP |
3893 | void |
3894 | rule_collection_ref(struct rule_collection *rules) | |
3895 | OVS_REQUIRES(ofproto_mutex) | |
3896 | { | |
3897 | size_t i; | |
3898 | ||
3899 | for (i = 0; i < rules->n; i++) { | |
3900 | ofproto_rule_ref(rules->rules[i]); | |
3901 | } | |
3902 | } | |
3903 | ||
3904 | void | |
3905 | rule_collection_unref(struct rule_collection *rules) | |
3906 | { | |
3907 | size_t i; | |
3908 | ||
3909 | for (i = 0; i < rules->n; i++) { | |
3910 | ofproto_rule_unref(rules->rules[i]); | |
3911 | } | |
3912 | } | |
3913 | ||
39c94593 JR |
3914 | /* Returns a NULL-terminated array of rule pointers, |
3915 | * destroys 'rules'. */ | |
3916 | static struct rule ** | |
3917 | rule_collection_detach(struct rule_collection *rules) | |
3918 | { | |
3919 | struct rule **rule_array; | |
3920 | ||
3921 | rule_collection_add(rules, NULL); | |
3922 | ||
3923 | if (rules->rules == rules->stub) { | |
3924 | rules->rules = xmemdup(rules->rules, rules->n * sizeof *rules->rules); | |
3925 | } | |
3926 | ||
3927 | rule_array = rules->rules; | |
3928 | rule_collection_init(rules); | |
3929 | ||
3930 | return rule_array; | |
3931 | } | |
3932 | ||
a8e547c1 BP |
3933 | void |
3934 | rule_collection_destroy(struct rule_collection *rules) | |
3935 | { | |
3936 | if (rules->rules != rules->stub) { | |
3937 | free(rules->rules); | |
3938 | } | |
bfd3dbf6 BP |
3939 | |
3940 | /* Make repeated destruction harmless. */ | |
3941 | rule_collection_init(rules); | |
a8e547c1 BP |
3942 | } |
3943 | ||
39c94593 JR |
3944 | /* Schedules postponed removal of rules, destroys 'rules'. */ |
3945 | static void | |
3946 | rule_collection_remove_postponed(struct rule_collection *rules) | |
3947 | OVS_REQUIRES(ofproto_mutex) | |
3948 | { | |
3949 | if (rules->n > 0) { | |
3950 | if (rules->n == 1) { | |
3951 | ovsrcu_postpone(remove_rule_rcu, rules->rules[0]); | |
3952 | } else { | |
3953 | ovsrcu_postpone(remove_rules_rcu, rule_collection_detach(rules)); | |
3954 | } | |
3955 | } | |
3956 | } | |
3957 | ||
dd51dae2 BP |
3958 | /* Checks whether 'rule' matches 'c' and, if so, adds it to 'rules'. This |
3959 | * function verifies most of the criteria in 'c' itself, but the caller must | |
3960 | * check 'c->cr' itself. | |
3961 | * | |
2b7b1427 | 3962 | * Rules that have already been marked for removal are not collected. |
ce59413f | 3963 | * |
dd51dae2 | 3964 | * Increments '*n_readonly' if 'rule' wasn't added because it's read-only (and |
b20f4073 BP |
3965 | * 'c' only includes modifiable rules). */ |
3966 | static void | |
a9b22b7f | 3967 | collect_rule(struct rule *rule, const struct rule_criteria *c, |
dd51dae2 | 3968 | struct rule_collection *rules, size_t *n_readonly) |
15aaf599 | 3969 | OVS_REQUIRES(ofproto_mutex) |
6c1d7642 | 3970 | { |
dd51dae2 BP |
3971 | if ((c->table_id == rule->table_id || c->table_id == 0xff) |
3972 | && ofproto_rule_has_out_port(rule, c->out_port) | |
3973 | && ofproto_rule_has_out_group(rule, c->out_group) | |
3974 | && !((rule->flow_cookie ^ c->cookie) & c->cookie_mask) | |
ce59413f | 3975 | && (!rule_is_hidden(rule) || c->include_hidden) |
bd53aa17 | 3976 | && cls_rule_visible_in_version(&rule->cr, c->version)) { |
dd51dae2 | 3977 | /* Rule matches all the criteria... */ |
834fe5cb | 3978 | if (!rule_is_readonly(rule) || c->include_readonly) { |
dd51dae2 | 3979 | /* ...add it. */ |
a8e547c1 | 3980 | rule_collection_add(rules, rule); |
dd51dae2 BP |
3981 | } else { |
3982 | /* ...except it's read-only. */ | |
3983 | ++*n_readonly; | |
6c1d7642 | 3984 | } |
6c1d7642 BP |
3985 | } |
3986 | } | |
3987 | ||
a9b22b7f BP |
3988 | /* Searches 'ofproto' for rules that match the criteria in 'criteria'. Matches |
3989 | * on classifiers rules are done in the "loose" way required for OpenFlow | |
3990 | * OFPFC_MODIFY and OFPFC_DELETE requests. Puts the selected rules on list | |
9ed18e46 BP |
3991 | * 'rules'. |
3992 | * | |
9ed18e46 | 3993 | * Returns 0 on success, otherwise an OpenFlow error code. */ |
90bf1e07 | 3994 | static enum ofperr |
a9b22b7f | 3995 | collect_rules_loose(struct ofproto *ofproto, |
a8e547c1 BP |
3996 | const struct rule_criteria *criteria, |
3997 | struct rule_collection *rules) | |
15aaf599 | 3998 | OVS_REQUIRES(ofproto_mutex) |
9ed18e46 | 3999 | { |
d0918789 | 4000 | struct oftable *table; |
554764d1 | 4001 | enum ofperr error = 0; |
dd51dae2 | 4002 | size_t n_readonly = 0; |
48266274 | 4003 | |
a8e547c1 BP |
4004 | rule_collection_init(rules); |
4005 | ||
554764d1 SH |
4006 | if (!check_table_id(ofproto, criteria->table_id)) { |
4007 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
a8e547c1 | 4008 | goto exit; |
48266274 | 4009 | } |
9ed18e46 | 4010 | |
b8266395 | 4011 | if (criteria->cookie_mask == OVS_BE64_MAX) { |
98eaac36 JR |
4012 | struct rule *rule; |
4013 | ||
a9b22b7f BP |
4014 | HINDEX_FOR_EACH_WITH_HASH (rule, cookie_node, |
4015 | hash_cookie(criteria->cookie), | |
98eaac36 | 4016 | &ofproto->cookies) { |
a9b22b7f | 4017 | if (cls_rule_is_loose_match(&rule->cr, &criteria->cr.match)) { |
b20f4073 | 4018 | collect_rule(rule, criteria, rules, &n_readonly); |
98eaac36 JR |
4019 | } |
4020 | } | |
6c1d7642 | 4021 | } else { |
a9b22b7f | 4022 | FOR_EACH_MATCHING_TABLE (table, criteria->table_id, ofproto) { |
6c1d7642 | 4023 | struct rule *rule; |
9ed18e46 | 4024 | |
bd53aa17 JR |
4025 | CLS_FOR_EACH_TARGET (rule, cr, &table->cls, &criteria->cr, |
4026 | criteria->version) { | |
b20f4073 | 4027 | collect_rule(rule, criteria, rules, &n_readonly); |
9ed18e46 BP |
4028 | } |
4029 | } | |
4030 | } | |
48d28ac1 | 4031 | |
a8e547c1 | 4032 | exit: |
dd51dae2 BP |
4033 | if (!error && !rules->n && n_readonly) { |
4034 | /* We didn't find any rules to modify. We did find some read-only | |
4035 | * rules that we're not allowed to modify, so report that. */ | |
4036 | error = OFPERR_OFPBRC_EPERM; | |
4037 | } | |
a8e547c1 BP |
4038 | if (error) { |
4039 | rule_collection_destroy(rules); | |
4040 | } | |
48d28ac1 | 4041 | return error; |
9ed18e46 BP |
4042 | } |
4043 | ||
a9b22b7f BP |
4044 | /* Searches 'ofproto' for rules that match the criteria in 'criteria'. Matches |
4045 | * on classifiers rules are done in the "strict" way required for OpenFlow | |
4046 | * OFPFC_MODIFY_STRICT and OFPFC_DELETE_STRICT requests. Puts the selected | |
4047 | * rules on list 'rules'. | |
9ed18e46 | 4048 | * |
9ed18e46 | 4049 | * Returns 0 on success, otherwise an OpenFlow error code. */ |
90bf1e07 | 4050 | static enum ofperr |
a9b22b7f | 4051 | collect_rules_strict(struct ofproto *ofproto, |
a8e547c1 BP |
4052 | const struct rule_criteria *criteria, |
4053 | struct rule_collection *rules) | |
15aaf599 | 4054 | OVS_REQUIRES(ofproto_mutex) |
9ed18e46 | 4055 | { |
d0918789 | 4056 | struct oftable *table; |
dd51dae2 | 4057 | size_t n_readonly = 0; |
d51c8b71 | 4058 | enum ofperr error = 0; |
48266274 | 4059 | |
a8e547c1 BP |
4060 | rule_collection_init(rules); |
4061 | ||
554764d1 SH |
4062 | if (!check_table_id(ofproto, criteria->table_id)) { |
4063 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
a8e547c1 | 4064 | goto exit; |
48266274 | 4065 | } |
9ed18e46 | 4066 | |
b8266395 | 4067 | if (criteria->cookie_mask == OVS_BE64_MAX) { |
98eaac36 JR |
4068 | struct rule *rule; |
4069 | ||
a9b22b7f BP |
4070 | HINDEX_FOR_EACH_WITH_HASH (rule, cookie_node, |
4071 | hash_cookie(criteria->cookie), | |
98eaac36 | 4072 | &ofproto->cookies) { |
a9b22b7f | 4073 | if (cls_rule_equal(&rule->cr, &criteria->cr)) { |
b20f4073 | 4074 | collect_rule(rule, criteria, rules, &n_readonly); |
98eaac36 JR |
4075 | } |
4076 | } | |
6c1d7642 | 4077 | } else { |
a9b22b7f | 4078 | FOR_EACH_MATCHING_TABLE (table, criteria->table_id, ofproto) { |
6c1d7642 | 4079 | struct rule *rule; |
9ed18e46 | 4080 | |
a9b22b7f | 4081 | rule = rule_from_cls_rule(classifier_find_rule_exactly( |
bd53aa17 JR |
4082 | &table->cls, &criteria->cr, |
4083 | criteria->version)); | |
6c1d7642 | 4084 | if (rule) { |
b20f4073 | 4085 | collect_rule(rule, criteria, rules, &n_readonly); |
9ed18e46 BP |
4086 | } |
4087 | } | |
4088 | } | |
48d28ac1 | 4089 | |
a8e547c1 | 4090 | exit: |
b20f4073 BP |
4091 | if (!error && !rules->n && n_readonly) { |
4092 | /* We didn't find any rules to modify. We did find some read-only | |
4093 | * rules that we're not allowed to modify, so report that. */ | |
4094 | error = OFPERR_OFPBRC_EPERM; | |
4095 | } | |
a8e547c1 BP |
4096 | if (error) { |
4097 | rule_collection_destroy(rules); | |
4098 | } | |
6c1d7642 | 4099 | return error; |
9ed18e46 BP |
4100 | } |
4101 | ||
f27f2134 BP |
4102 | /* Returns 'age_ms' (a duration in milliseconds), converted to seconds and |
4103 | * forced into the range of a uint16_t. */ | |
4104 | static int | |
4105 | age_secs(long long int age_ms) | |
4106 | { | |
4107 | return (age_ms < 0 ? 0 | |
4108 | : age_ms >= UINT16_MAX * 1000 ? UINT16_MAX | |
4109 | : (unsigned int) age_ms / 1000); | |
4110 | } | |
4111 | ||
90bf1e07 | 4112 | static enum ofperr |
63f2140a | 4113 | handle_flow_stats_request(struct ofconn *ofconn, |
982697a4 | 4114 | const struct ofp_header *request) |
15aaf599 | 4115 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 4116 | { |
64ff1d96 | 4117 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
81d1ea94 | 4118 | struct ofputil_flow_stats_request fsr; |
a9b22b7f | 4119 | struct rule_criteria criteria; |
a8e547c1 | 4120 | struct rule_collection rules; |
ca6ba700 | 4121 | struct ovs_list replies; |
90bf1e07 | 4122 | enum ofperr error; |
a8e547c1 | 4123 | size_t i; |
09246b99 | 4124 | |
982697a4 | 4125 | error = ofputil_decode_flow_stats_request(&fsr, request); |
09246b99 BP |
4126 | if (error) { |
4127 | return error; | |
4128 | } | |
4129 | ||
2b7b1427 JR |
4130 | rule_criteria_init(&criteria, fsr.table_id, &fsr.match, 0, CLS_MAX_VERSION, |
4131 | fsr.cookie, fsr.cookie_mask, fsr.out_port, | |
4132 | fsr.out_group); | |
15aaf599 BP |
4133 | |
4134 | ovs_mutex_lock(&ofproto_mutex); | |
a9b22b7f BP |
4135 | error = collect_rules_loose(ofproto, &criteria, &rules); |
4136 | rule_criteria_destroy(&criteria); | |
15aaf599 BP |
4137 | if (!error) { |
4138 | rule_collection_ref(&rules); | |
4139 | } | |
4140 | ovs_mutex_unlock(&ofproto_mutex); | |
4141 | ||
9ed18e46 BP |
4142 | if (error) { |
4143 | return error; | |
4144 | } | |
5ecc9d81 | 4145 | |
982697a4 | 4146 | ofpmp_init(&replies, request); |
a8e547c1 BP |
4147 | for (i = 0; i < rules.n; i++) { |
4148 | struct rule *rule = rules.rules[i]; | |
f27f2134 | 4149 | long long int now = time_msec(); |
9ed18e46 | 4150 | struct ofputil_flow_stats fs; |
15aaf599 | 4151 | long long int created, used, modified; |
dc723c44 | 4152 | const struct rule_actions *actions; |
15aaf599 | 4153 | enum ofputil_flow_mod_flags flags; |
a3779dbc | 4154 | |
d10976b7 | 4155 | ovs_mutex_lock(&rule->mutex); |
15aaf599 | 4156 | fs.cookie = rule->flow_cookie; |
a3779dbc EJ |
4157 | fs.idle_timeout = rule->idle_timeout; |
4158 | fs.hard_timeout = rule->hard_timeout; | |
ca26eb44 | 4159 | fs.importance = rule->importance; |
15aaf599 | 4160 | created = rule->created; |
15aaf599 | 4161 | modified = rule->modified; |
06a0f3e2 | 4162 | actions = rule_get_actions(rule); |
15aaf599 | 4163 | flags = rule->flags; |
d10976b7 | 4164 | ovs_mutex_unlock(&rule->mutex); |
a3779dbc | 4165 | |
dc437090 JR |
4166 | ofproto->ofproto_class->rule_get_stats(rule, &fs.packet_count, |
4167 | &fs.byte_count, &used); | |
4168 | ||
15aaf599 BP |
4169 | minimatch_expand(&rule->cr.match, &fs.match); |
4170 | fs.table_id = rule->table_id; | |
4171 | calc_duration(created, now, &fs.duration_sec, &fs.duration_nsec); | |
4172 | fs.priority = rule->cr.priority; | |
4173 | fs.idle_age = age_secs(now - used); | |
4174 | fs.hard_age = age_secs(now - modified); | |
15aaf599 BP |
4175 | fs.ofpacts = actions->ofpacts; |
4176 | fs.ofpacts_len = actions->ofpacts_len; | |
3f517bcd | 4177 | |
15aaf599 | 4178 | fs.flags = flags; |
9ed18e46 | 4179 | ofputil_append_flow_stats_reply(&fs, &replies); |
3c4486a5 | 4180 | } |
15aaf599 BP |
4181 | |
4182 | rule_collection_unref(&rules); | |
a8e547c1 BP |
4183 | rule_collection_destroy(&rules); |
4184 | ||
63f2140a | 4185 | ofconn_send_replies(ofconn, &replies); |
5ecc9d81 | 4186 | |
09246b99 BP |
4187 | return 0; |
4188 | } | |
4189 | ||
4f2cad2c | 4190 | static void |
3394b5b6 | 4191 | flow_stats_ds(struct rule *rule, struct ds *results) |
4f2cad2c | 4192 | { |
4f2cad2c | 4193 | uint64_t packet_count, byte_count; |
dc723c44 | 4194 | const struct rule_actions *actions; |
dc437090 | 4195 | long long int created, used; |
4f2cad2c | 4196 | |
dc437090 JR |
4197 | rule->ofproto->ofproto_class->rule_get_stats(rule, &packet_count, |
4198 | &byte_count, &used); | |
4f2cad2c | 4199 | |
15aaf599 | 4200 | ovs_mutex_lock(&rule->mutex); |
06a0f3e2 | 4201 | actions = rule_get_actions(rule); |
15aaf599 BP |
4202 | created = rule->created; |
4203 | ovs_mutex_unlock(&rule->mutex); | |
4204 | ||
6c1491fb BP |
4205 | if (rule->table_id != 0) { |
4206 | ds_put_format(results, "table_id=%"PRIu8", ", rule->table_id); | |
4207 | } | |
15aaf599 | 4208 | ds_put_format(results, "duration=%llds, ", (time_msec() - created) / 1000); |
4f2cad2c JP |
4209 | ds_put_format(results, "n_packets=%"PRIu64", ", packet_count); |
4210 | ds_put_format(results, "n_bytes=%"PRIu64", ", byte_count); | |
cb833cf6 | 4211 | cls_rule_format(&rule->cr, results); |
a5df0e72 | 4212 | ds_put_char(results, ','); |
15aaf599 | 4213 | |
455ecd77 | 4214 | ds_put_cstr(results, "actions="); |
15aaf599 BP |
4215 | ofpacts_format(actions->ofpacts, actions->ofpacts_len, results); |
4216 | ||
4f2cad2c JP |
4217 | ds_put_cstr(results, "\n"); |
4218 | } | |
4219 | ||
d295e8e9 | 4220 | /* Adds a pretty-printed description of all flows to 'results', including |
ee8b231c | 4221 | * hidden flows (e.g., set up by in-band control). */ |
4f2cad2c JP |
4222 | void |
4223 | ofproto_get_all_flows(struct ofproto *p, struct ds *results) | |
4224 | { | |
d0918789 | 4225 | struct oftable *table; |
6c1491fb | 4226 | |
d0918789 | 4227 | OFPROTO_FOR_EACH_TABLE (table, p) { |
6c1491fb | 4228 | struct rule *rule; |
064af421 | 4229 | |
5f0476ce | 4230 | CLS_FOR_EACH (rule, cr, &table->cls) { |
6c1491fb BP |
4231 | flow_stats_ds(rule, results); |
4232 | } | |
064af421 | 4233 | } |
064af421 BP |
4234 | } |
4235 | ||
b5827b24 BP |
4236 | /* Obtains the NetFlow engine type and engine ID for 'ofproto' into |
4237 | * '*engine_type' and '*engine_id', respectively. */ | |
4238 | void | |
4239 | ofproto_get_netflow_ids(const struct ofproto *ofproto, | |
4240 | uint8_t *engine_type, uint8_t *engine_id) | |
4241 | { | |
abe529af | 4242 | ofproto->ofproto_class->get_netflow_ids(ofproto, engine_type, engine_id); |
b5827b24 BP |
4243 | } |
4244 | ||
8f5514fe AW |
4245 | /* Checks the status change of CFM on 'ofport'. |
4246 | * | |
4247 | * Returns true if 'ofproto_class' does not support 'cfm_status_changed'. */ | |
4248 | bool | |
4249 | ofproto_port_cfm_status_changed(struct ofproto *ofproto, ofp_port_t ofp_port) | |
4250 | { | |
4251 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
4252 | return (ofport && ofproto->ofproto_class->cfm_status_changed | |
4253 | ? ofproto->ofproto_class->cfm_status_changed(ofport) | |
4254 | : true); | |
4255 | } | |
4256 | ||
88bf179a AW |
4257 | /* Checks the status of CFM configured on 'ofp_port' within 'ofproto'. |
4258 | * Returns 0 if the port's CFM status was successfully stored into | |
4259 | * '*status'. Returns positive errno if the port did not have CFM | |
8f5514fe | 4260 | * configured. |
9a9e3786 | 4261 | * |
88bf179a AW |
4262 | * The caller must provide and own '*status', and must free 'status->rmps'. |
4263 | * '*status' is indeterminate if the return value is non-zero. */ | |
4264 | int | |
4e022ec0 | 4265 | ofproto_port_get_cfm_status(const struct ofproto *ofproto, ofp_port_t ofp_port, |
685acfd9 | 4266 | struct cfm_status *status) |
3967a833 MM |
4267 | { |
4268 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
88bf179a AW |
4269 | return (ofport && ofproto->ofproto_class->get_cfm_status |
4270 | ? ofproto->ofproto_class->get_cfm_status(ofport, status) | |
4271 | : EOPNOTSUPP); | |
3967a833 MM |
4272 | } |
4273 | ||
90bf1e07 | 4274 | static enum ofperr |
76c93b22 | 4275 | handle_aggregate_stats_request(struct ofconn *ofconn, |
982697a4 | 4276 | const struct ofp_header *oh) |
15aaf599 | 4277 | OVS_EXCLUDED(ofproto_mutex) |
27d34fce | 4278 | { |
76c93b22 | 4279 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
81d1ea94 | 4280 | struct ofputil_flow_stats_request request; |
76c93b22 | 4281 | struct ofputil_aggregate_stats stats; |
5e9d0469 | 4282 | bool unknown_packets, unknown_bytes; |
a9b22b7f | 4283 | struct rule_criteria criteria; |
a8e547c1 | 4284 | struct rule_collection rules; |
76c93b22 | 4285 | struct ofpbuf *reply; |
90bf1e07 | 4286 | enum ofperr error; |
a8e547c1 | 4287 | size_t i; |
27d34fce | 4288 | |
982697a4 | 4289 | error = ofputil_decode_flow_stats_request(&request, oh); |
76c93b22 BP |
4290 | if (error) { |
4291 | return error; | |
4292 | } | |
5ecc9d81 | 4293 | |
a9b22b7f | 4294 | rule_criteria_init(&criteria, request.table_id, &request.match, 0, |
2b7b1427 | 4295 | CLS_MAX_VERSION, request.cookie, request.cookie_mask, |
a9b22b7f | 4296 | request.out_port, request.out_group); |
15aaf599 BP |
4297 | |
4298 | ovs_mutex_lock(&ofproto_mutex); | |
a9b22b7f BP |
4299 | error = collect_rules_loose(ofproto, &criteria, &rules); |
4300 | rule_criteria_destroy(&criteria); | |
15aaf599 BP |
4301 | if (!error) { |
4302 | rule_collection_ref(&rules); | |
4303 | } | |
4304 | ovs_mutex_unlock(&ofproto_mutex); | |
4305 | ||
9ed18e46 BP |
4306 | if (error) { |
4307 | return error; | |
4308 | } | |
3c4486a5 | 4309 | |
9ed18e46 | 4310 | memset(&stats, 0, sizeof stats); |
5e9d0469 | 4311 | unknown_packets = unknown_bytes = false; |
a8e547c1 BP |
4312 | for (i = 0; i < rules.n; i++) { |
4313 | struct rule *rule = rules.rules[i]; | |
9ed18e46 BP |
4314 | uint64_t packet_count; |
4315 | uint64_t byte_count; | |
dc437090 | 4316 | long long int used; |
5ecc9d81 | 4317 | |
9ed18e46 | 4318 | ofproto->ofproto_class->rule_get_stats(rule, &packet_count, |
dc437090 | 4319 | &byte_count, &used); |
5ecc9d81 | 4320 | |
5e9d0469 BP |
4321 | if (packet_count == UINT64_MAX) { |
4322 | unknown_packets = true; | |
4323 | } else { | |
4324 | stats.packet_count += packet_count; | |
4325 | } | |
4326 | ||
4327 | if (byte_count == UINT64_MAX) { | |
4328 | unknown_bytes = true; | |
4329 | } else { | |
4330 | stats.byte_count += byte_count; | |
4331 | } | |
4332 | ||
9ed18e46 | 4333 | stats.flow_count++; |
3c4486a5 | 4334 | } |
5e9d0469 BP |
4335 | if (unknown_packets) { |
4336 | stats.packet_count = UINT64_MAX; | |
4337 | } | |
4338 | if (unknown_bytes) { | |
4339 | stats.byte_count = UINT64_MAX; | |
4340 | } | |
27d34fce | 4341 | |
15aaf599 | 4342 | rule_collection_unref(&rules); |
a8e547c1 BP |
4343 | rule_collection_destroy(&rules); |
4344 | ||
982697a4 | 4345 | reply = ofputil_encode_aggregate_stats_reply(&stats, oh); |
76c93b22 | 4346 | ofconn_send_reply(ofconn, reply); |
09246b99 BP |
4347 | |
4348 | return 0; | |
4349 | } | |
4350 | ||
c1c9c9c4 | 4351 | struct queue_stats_cbdata { |
ca0f572c | 4352 | struct ofport *ofport; |
ca6ba700 | 4353 | struct ovs_list replies; |
6dc34a0d | 4354 | long long int now; |
c1c9c9c4 BP |
4355 | }; |
4356 | ||
4357 | static void | |
db9220c3 | 4358 | put_queue_stats(struct queue_stats_cbdata *cbdata, uint32_t queue_id, |
c1c9c9c4 BP |
4359 | const struct netdev_queue_stats *stats) |
4360 | { | |
6dc34a0d | 4361 | struct ofputil_queue_stats oqs; |
c1c9c9c4 | 4362 | |
6dc34a0d BP |
4363 | oqs.port_no = cbdata->ofport->pp.port_no; |
4364 | oqs.queue_id = queue_id; | |
4365 | oqs.tx_bytes = stats->tx_bytes; | |
4366 | oqs.tx_packets = stats->tx_packets; | |
4367 | oqs.tx_errors = stats->tx_errors; | |
4368 | if (stats->created != LLONG_MIN) { | |
4369 | calc_duration(stats->created, cbdata->now, | |
4370 | &oqs.duration_sec, &oqs.duration_nsec); | |
4371 | } else { | |
4372 | oqs.duration_sec = oqs.duration_nsec = UINT32_MAX; | |
4373 | } | |
64626975 | 4374 | ofputil_append_queue_stat(&cbdata->replies, &oqs); |
c1c9c9c4 BP |
4375 | } |
4376 | ||
4377 | static void | |
db9220c3 | 4378 | handle_queue_stats_dump_cb(uint32_t queue_id, |
c1c9c9c4 BP |
4379 | struct netdev_queue_stats *stats, |
4380 | void *cbdata_) | |
4381 | { | |
4382 | struct queue_stats_cbdata *cbdata = cbdata_; | |
4383 | ||
4384 | put_queue_stats(cbdata, queue_id, stats); | |
4385 | } | |
4386 | ||
0414d158 | 4387 | static enum ofperr |
ca0f572c | 4388 | handle_queue_stats_for_port(struct ofport *port, uint32_t queue_id, |
c1c9c9c4 BP |
4389 | struct queue_stats_cbdata *cbdata) |
4390 | { | |
ca0f572c | 4391 | cbdata->ofport = port; |
c1c9c9c4 BP |
4392 | if (queue_id == OFPQ_ALL) { |
4393 | netdev_dump_queue_stats(port->netdev, | |
4394 | handle_queue_stats_dump_cb, cbdata); | |
4395 | } else { | |
4396 | struct netdev_queue_stats stats; | |
4397 | ||
1ac788f6 BP |
4398 | if (!netdev_get_queue_stats(port->netdev, queue_id, &stats)) { |
4399 | put_queue_stats(cbdata, queue_id, &stats); | |
0414d158 BP |
4400 | } else { |
4401 | return OFPERR_OFPQOFC_BAD_QUEUE; | |
1ac788f6 | 4402 | } |
c1c9c9c4 | 4403 | } |
0414d158 | 4404 | return 0; |
c1c9c9c4 BP |
4405 | } |
4406 | ||
90bf1e07 | 4407 | static enum ofperr |
63f2140a | 4408 | handle_queue_stats_request(struct ofconn *ofconn, |
982697a4 | 4409 | const struct ofp_header *rq) |
c1c9c9c4 | 4410 | { |
64ff1d96 | 4411 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
c1c9c9c4 | 4412 | struct queue_stats_cbdata cbdata; |
0414d158 | 4413 | struct ofport *port; |
0414d158 | 4414 | enum ofperr error; |
64626975 | 4415 | struct ofputil_queue_stats_request oqsr; |
c1c9c9c4 | 4416 | |
c1c9c9c4 BP |
4417 | COVERAGE_INC(ofproto_queue_req); |
4418 | ||
982697a4 | 4419 | ofpmp_init(&cbdata.replies, rq); |
6dc34a0d | 4420 | cbdata.now = time_msec(); |
c1c9c9c4 | 4421 | |
64626975 SH |
4422 | error = ofputil_decode_queue_stats_request(rq, &oqsr); |
4423 | if (error) { | |
4424 | return error; | |
4425 | } | |
4426 | ||
7f05e7ab | 4427 | if (oqsr.port_no == OFPP_ANY) { |
0414d158 | 4428 | error = OFPERR_OFPQOFC_BAD_QUEUE; |
4e8e4213 | 4429 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
64626975 | 4430 | if (!handle_queue_stats_for_port(port, oqsr.queue_id, &cbdata)) { |
0414d158 BP |
4431 | error = 0; |
4432 | } | |
c1c9c9c4 | 4433 | } |
0414d158 | 4434 | } else { |
64626975 | 4435 | port = ofproto_get_port(ofproto, oqsr.port_no); |
0414d158 | 4436 | error = (port |
64626975 | 4437 | ? handle_queue_stats_for_port(port, oqsr.queue_id, &cbdata) |
0414d158 BP |
4438 | : OFPERR_OFPQOFC_BAD_PORT); |
4439 | } | |
4440 | if (!error) { | |
4441 | ofconn_send_replies(ofconn, &cbdata.replies); | |
c1c9c9c4 | 4442 | } else { |
63f2140a | 4443 | ofpbuf_list_delete(&cbdata.replies); |
c1c9c9c4 | 4444 | } |
c1c9c9c4 | 4445 | |
0414d158 | 4446 | return error; |
c1c9c9c4 | 4447 | } |
7ee20df1 | 4448 | |
2e31a9b8 | 4449 | static enum ofperr |
6787a49f | 4450 | evict_rules_from_table(struct oftable *table) |
15aaf599 | 4451 | OVS_REQUIRES(ofproto_mutex) |
2e31a9b8 | 4452 | { |
802f84ff JR |
4453 | enum ofperr error = 0; |
4454 | struct rule_collection rules; | |
6787a49f | 4455 | unsigned int count = table->n_flows; |
802f84ff JR |
4456 | unsigned int max_flows = table->max_flows; |
4457 | ||
4458 | rule_collection_init(&rules); | |
4459 | ||
4460 | while (count-- > max_flows) { | |
2e31a9b8 | 4461 | struct rule *rule; |
8037acb4 | 4462 | |
2e31a9b8 | 4463 | if (!choose_rule_to_evict(table, &rule)) { |
802f84ff JR |
4464 | error = OFPERR_OFPFMFC_TABLE_FULL; |
4465 | break; | |
2e31a9b8 | 4466 | } else { |
802f84ff JR |
4467 | eviction_group_remove_rule(rule); |
4468 | rule_collection_add(&rules, rule); | |
2e31a9b8 | 4469 | } |
8037acb4 | 4470 | } |
802f84ff | 4471 | delete_flows__(&rules, OFPRR_EVICTION, NULL); |
2e31a9b8 | 4472 | |
802f84ff | 4473 | return error; |
8037acb4 BP |
4474 | } |
4475 | ||
18080541 BP |
4476 | static void |
4477 | get_conjunctions(const struct ofputil_flow_mod *fm, | |
4478 | struct cls_conjunction **conjsp, size_t *n_conjsp) | |
4479 | OVS_REQUIRES(ofproto_mutex) | |
4480 | { | |
4481 | struct cls_conjunction *conjs = NULL; | |
4482 | int n_conjs = 0; | |
4483 | ||
f08e39dd BP |
4484 | const struct ofpact *ofpact; |
4485 | OFPACT_FOR_EACH (ofpact, fm->ofpacts, fm->ofpacts_len) { | |
4486 | if (ofpact->type == OFPACT_CONJUNCTION) { | |
18080541 | 4487 | n_conjs++; |
f08e39dd BP |
4488 | } else if (ofpact->type != OFPACT_NOTE) { |
4489 | /* "conjunction" may appear with "note" actions but not with any | |
4490 | * other type of actions. */ | |
4491 | ovs_assert(!n_conjs); | |
4492 | break; | |
18080541 | 4493 | } |
f08e39dd BP |
4494 | } |
4495 | if (n_conjs) { | |
4496 | int i = 0; | |
18080541 BP |
4497 | |
4498 | conjs = xzalloc(n_conjs * sizeof *conjs); | |
18080541 | 4499 | OFPACT_FOR_EACH (ofpact, fm->ofpacts, fm->ofpacts_len) { |
f08e39dd BP |
4500 | if (ofpact->type == OFPACT_CONJUNCTION) { |
4501 | struct ofpact_conjunction *oc = ofpact_get_CONJUNCTION(ofpact); | |
4502 | conjs[i].clause = oc->clause; | |
4503 | conjs[i].n_clauses = oc->n_clauses; | |
4504 | conjs[i].id = oc->id; | |
4505 | i++; | |
4506 | } | |
18080541 BP |
4507 | } |
4508 | } | |
4509 | ||
4510 | *conjsp = conjs; | |
4511 | *n_conjsp = n_conjs; | |
4512 | } | |
4513 | ||
1f42be1c JR |
4514 | /* Implements OFPFC_ADD and the cases for OFPFC_MODIFY and OFPFC_MODIFY_STRICT |
4515 | * in which no matching flow already exists in the flow table. | |
4516 | * | |
4517 | * Adds the flow specified by 'fm', to the ofproto's flow table. Returns 0 on | |
4518 | * success, or an OpenFlow error code on failure. | |
4519 | * | |
4520 | * On successful return the caller must complete the operation either by | |
4521 | * calling add_flow_finish(), or add_flow_revert() if the operation needs to | |
4522 | * be reverted. | |
4523 | * | |
4524 | * The caller retains ownership of 'fm->ofpacts'. */ | |
90bf1e07 | 4525 | static enum ofperr |
8be00367 | 4526 | add_flow_start(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
15aaf599 | 4527 | OVS_REQUIRES(ofproto_mutex) |
064af421 | 4528 | { |
8be00367 JR |
4529 | struct ofputil_flow_mod *fm = &ofm->fm; |
4530 | struct rule **old_rule = &ofm->old_rules.stub[0]; | |
4531 | struct rule **new_rule = &ofm->new_rules.stub[0]; | |
d0918789 | 4532 | struct oftable *table; |
8037acb4 | 4533 | struct cls_rule cr; |
064af421 | 4534 | struct rule *rule; |
5a361239 | 4535 | uint8_t table_id; |
39c94593 JR |
4536 | struct cls_conjunction *conjs; |
4537 | size_t n_conjs; | |
4538 | enum ofperr error; | |
064af421 | 4539 | |
554764d1 SH |
4540 | if (!check_table_id(ofproto, fm->table_id)) { |
4541 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
48266274 BP |
4542 | return error; |
4543 | } | |
4544 | ||
7ee20df1 BP |
4545 | /* Pick table. */ |
4546 | if (fm->table_id == 0xff) { | |
13521ff5 | 4547 | if (ofproto->ofproto_class->rule_choose_table) { |
81a76618 BP |
4548 | error = ofproto->ofproto_class->rule_choose_table(ofproto, |
4549 | &fm->match, | |
7ee20df1 BP |
4550 | &table_id); |
4551 | if (error) { | |
4552 | return error; | |
4553 | } | |
cb22974d | 4554 | ovs_assert(table_id < ofproto->n_tables); |
7ee20df1 | 4555 | } else { |
5a361239 | 4556 | table_id = 0; |
7ee20df1 BP |
4557 | } |
4558 | } else if (fm->table_id < ofproto->n_tables) { | |
5a361239 | 4559 | table_id = fm->table_id; |
7ee20df1 | 4560 | } else { |
c22c56bd | 4561 | return OFPERR_OFPBRC_BAD_TABLE_ID; |
064af421 BP |
4562 | } |
4563 | ||
5a361239 | 4564 | table = &ofproto->tables[table_id]; |
834fe5cb BP |
4565 | if (table->flags & OFTABLE_READONLY |
4566 | && !(fm->flags & OFPUTIL_FF_NO_READONLY)) { | |
5c67e4af BP |
4567 | return OFPERR_OFPBRC_EPERM; |
4568 | } | |
4569 | ||
c84d8691 JR |
4570 | if (!(fm->flags & OFPUTIL_FF_HIDDEN_FIELDS) |
4571 | && !match_has_default_hidden_fields(&fm->match)) { | |
4572 | VLOG_WARN_RL(&rl, "%s: (add_flow) only internal flows can set " | |
4573 | "non-default values to hidden fields", ofproto->name); | |
4574 | return OFPERR_OFPBRC_EPERM; | |
adcf00ba AZ |
4575 | } |
4576 | ||
bd53aa17 | 4577 | cls_rule_init(&cr, &fm->match, fm->priority); |
8037acb4 | 4578 | |
1f42be1c | 4579 | /* Check for the existence of an identical rule. |
2b7b1427 | 4580 | * This will not return rules earlier marked for removal. */ |
bd53aa17 JR |
4581 | rule = rule_from_cls_rule(classifier_find_rule_exactly(&table->cls, &cr, |
4582 | ofm->version)); | |
39c94593 JR |
4583 | *old_rule = rule; |
4584 | if (!rule) { | |
c84d8691 JR |
4585 | /* Check for overlap, if requested. */ |
4586 | if (fm->flags & OFPUTIL_FF_CHECK_OVERLAP | |
bd53aa17 | 4587 | && classifier_rule_overlaps(&table->cls, &cr, ofm->version)) { |
c84d8691 JR |
4588 | cls_rule_destroy(&cr); |
4589 | return OFPERR_OFPFMFC_OVERLAP; | |
dd27be82 | 4590 | } |
b277c7cc | 4591 | |
c84d8691 | 4592 | /* If necessary, evict an existing rule to clear out space. */ |
6787a49f JR |
4593 | if (table->n_flows >= table->max_flows) { |
4594 | if (!choose_rule_to_evict(table, &rule)) { | |
4595 | error = OFPERR_OFPFMFC_TABLE_FULL; | |
4596 | cls_rule_destroy(&cr); | |
4597 | return error; | |
4598 | } | |
4599 | eviction_group_remove_rule(rule); | |
4600 | /* Marks '*old_rule' as an evicted rule rather than replaced rule. | |
4601 | */ | |
4602 | fm->delete_reason = OFPRR_EVICTION; | |
4603 | *old_rule = rule; | |
c09f755d | 4604 | } |
39c94593 JR |
4605 | } else { |
4606 | fm->modify_cookie = true; | |
4607 | } | |
81a76618 | 4608 | |
39c94593 JR |
4609 | /* Allocate new rule. */ |
4610 | error = replace_rule_create(ofproto, fm, &cr, table - ofproto->tables, | |
4611 | rule, new_rule); | |
4612 | if (error) { | |
4613 | return error; | |
064af421 | 4614 | } |
8037acb4 | 4615 | |
39c94593 | 4616 | get_conjunctions(fm, &conjs, &n_conjs); |
8be00367 | 4617 | replace_rule_start(ofproto, ofm->version, rule, *new_rule, conjs, n_conjs); |
39c94593 JR |
4618 | free(conjs); |
4619 | ||
c84d8691 JR |
4620 | return 0; |
4621 | } | |
1ebeaaa7 | 4622 | |
6787a49f | 4623 | /* Revert the effects of add_flow_start(). */ |
1f42be1c | 4624 | static void |
8be00367 | 4625 | add_flow_revert(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
1f42be1c JR |
4626 | OVS_REQUIRES(ofproto_mutex) |
4627 | { | |
8be00367 JR |
4628 | struct ofputil_flow_mod *fm = &ofm->fm; |
4629 | struct rule *old_rule = ofm->old_rules.stub[0]; | |
4630 | struct rule *new_rule = ofm->new_rules.stub[0]; | |
4631 | ||
6787a49f JR |
4632 | if (old_rule && fm->delete_reason == OFPRR_EVICTION) { |
4633 | /* Revert the eviction. */ | |
4634 | eviction_group_add_rule(old_rule); | |
4635 | } | |
4636 | ||
39c94593 | 4637 | replace_rule_revert(ofproto, old_rule, new_rule); |
1f42be1c JR |
4638 | } |
4639 | ||
39c94593 | 4640 | /* To be called after version bump. */ |
c84d8691 | 4641 | static void |
8be00367 JR |
4642 | add_flow_finish(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
4643 | const struct flow_mod_requester *req) | |
c84d8691 JR |
4644 | OVS_REQUIRES(ofproto_mutex) |
4645 | { | |
8be00367 JR |
4646 | struct ofputil_flow_mod *fm = &ofm->fm; |
4647 | struct rule *old_rule = ofm->old_rules.stub[0]; | |
4648 | struct rule *new_rule = ofm->new_rules.stub[0]; | |
39c94593 | 4649 | struct ovs_list dead_cookies = OVS_LIST_INITIALIZER(&dead_cookies); |
8037acb4 | 4650 | |
39c94593 JR |
4651 | replace_rule_finish(ofproto, fm, req, old_rule, new_rule, &dead_cookies); |
4652 | learned_cookies_flush(ofproto, &dead_cookies); | |
802f84ff | 4653 | |
39c94593 JR |
4654 | if (old_rule) { |
4655 | ovsrcu_postpone(remove_rule_rcu, old_rule); | |
4656 | } else { | |
8fd47924 | 4657 | if (minimask_get_vid_mask(new_rule->cr.match.mask) == VLAN_VID_MASK) { |
c84d8691 | 4658 | if (ofproto->vlan_bitmap) { |
8fd47924 | 4659 | uint16_t vid = miniflow_get_vid(new_rule->cr.match.flow); |
062fea06 | 4660 | |
c84d8691 JR |
4661 | if (!bitmap_is_set(ofproto->vlan_bitmap, vid)) { |
4662 | bitmap_set1(ofproto->vlan_bitmap, vid); | |
4663 | ofproto->vlans_changed = true; | |
4664 | } | |
4665 | } else { | |
834fe5cb BP |
4666 | ofproto->vlans_changed = true; |
4667 | } | |
834fe5cb | 4668 | } |
c84d8691 | 4669 | |
39c94593 | 4670 | ofmonitor_report(ofproto->connmgr, new_rule, NXFME_ADDED, 0, |
c84d8691 JR |
4671 | req ? req->ofconn : NULL, |
4672 | req ? req->request->xid : 0, NULL); | |
4673 | } | |
4674 | ||
39c94593 | 4675 | send_buffered_packet(req, fm->buffer_id, new_rule); |
c84d8691 | 4676 | } |
79eee1eb BP |
4677 | \f |
4678 | /* OFPFC_MODIFY and OFPFC_MODIFY_STRICT. */ | |
064af421 | 4679 | |
39c94593 JR |
4680 | /* Create a new rule based on attributes in 'fm', match in 'cr', 'table_id', |
4681 | * and 'old_rule'. Note that the rule is NOT inserted into a any data | |
4682 | * structures yet. Takes ownership of 'cr'. */ | |
90bf1e07 | 4683 | static enum ofperr |
39c94593 JR |
4684 | replace_rule_create(struct ofproto *ofproto, struct ofputil_flow_mod *fm, |
4685 | struct cls_rule *cr, uint8_t table_id, | |
4686 | struct rule *old_rule, struct rule **new_rule) | |
79eee1eb | 4687 | { |
39c94593 | 4688 | struct rule *rule; |
dd27be82 | 4689 | enum ofperr error; |
79eee1eb | 4690 | |
39c94593 JR |
4691 | /* Allocate new rule. */ |
4692 | rule = ofproto->ofproto_class->rule_alloc(); | |
4693 | if (!rule) { | |
4694 | cls_rule_destroy(cr); | |
4695 | VLOG_WARN_RL(&rl, "%s: failed to allocate a rule.", ofproto->name); | |
4696 | return OFPERR_OFPFMFC_UNKNOWN; | |
af822017 BP |
4697 | } |
4698 | ||
39c94593 JR |
4699 | /* Initialize base state. */ |
4700 | *CONST_CAST(struct ofproto **, &rule->ofproto) = ofproto; | |
4701 | cls_rule_move(CONST_CAST(struct cls_rule *, &rule->cr), cr); | |
4702 | ovs_refcount_init(&rule->ref_count); | |
4703 | rule->flow_cookie = fm->new_cookie; | |
4704 | rule->created = rule->modified = time_msec(); | |
834fe5cb | 4705 | |
39c94593 JR |
4706 | ovs_mutex_init(&rule->mutex); |
4707 | ovs_mutex_lock(&rule->mutex); | |
4708 | rule->idle_timeout = fm->idle_timeout; | |
4709 | rule->hard_timeout = fm->hard_timeout; | |
cf119e09 | 4710 | *CONST_CAST(uint16_t *, &rule->importance) = fm->importance; |
f695ebfa | 4711 | rule->removed_reason = OVS_OFPRR_NONE; |
834fe5cb | 4712 | |
39c94593 JR |
4713 | *CONST_CAST(uint8_t *, &rule->table_id) = table_id; |
4714 | rule->flags = fm->flags & OFPUTIL_FF_STATE; | |
4715 | *CONST_CAST(const struct rule_actions **, &rule->actions) | |
4716 | = rule_actions_create(fm->ofpacts, fm->ofpacts_len); | |
4717 | list_init(&rule->meter_list_node); | |
4718 | rule->eviction_group = NULL; | |
4719 | list_init(&rule->expirable); | |
4720 | rule->monitor_flags = 0; | |
4721 | rule->add_seqno = 0; | |
4722 | rule->modify_seqno = 0; | |
834fe5cb | 4723 | |
39c94593 | 4724 | /* Copy values from old rule for modify semantics. */ |
6787a49f | 4725 | if (old_rule && fm->delete_reason != OFPRR_EVICTION) { |
39c94593 JR |
4726 | bool change_cookie = (fm->modify_cookie |
4727 | && fm->new_cookie != OVS_BE64_MAX | |
4728 | && fm->new_cookie != old_rule->flow_cookie); | |
4729 | ||
4730 | ovs_mutex_lock(&old_rule->mutex); | |
4731 | if (fm->command != OFPFC_ADD) { | |
4732 | rule->idle_timeout = old_rule->idle_timeout; | |
4733 | rule->hard_timeout = old_rule->hard_timeout; | |
cf119e09 | 4734 | *CONST_CAST(uint16_t *, &rule->importance) = old_rule->importance; |
39c94593 JR |
4735 | rule->flags = old_rule->flags; |
4736 | rule->created = old_rule->created; | |
4737 | } | |
4738 | if (!change_cookie) { | |
4739 | rule->flow_cookie = old_rule->flow_cookie; | |
4740 | } | |
4741 | ovs_mutex_unlock(&old_rule->mutex); | |
dd27be82 | 4742 | } |
dd27be82 JR |
4743 | ovs_mutex_unlock(&rule->mutex); |
4744 | ||
39c94593 JR |
4745 | /* Construct rule, initializing derived state. */ |
4746 | error = ofproto->ofproto_class->rule_construct(rule); | |
4747 | if (error) { | |
4748 | ofproto_rule_destroy__(rule); | |
4749 | return error; | |
dd27be82 | 4750 | } |
b277c7cc | 4751 | |
39c94593 | 4752 | rule->removed = true; /* Not yet in ofproto data structures. */ |
dd27be82 | 4753 | |
39c94593 JR |
4754 | *new_rule = rule; |
4755 | return 0; | |
4756 | } | |
884e1dc4 | 4757 | |
39c94593 | 4758 | static void |
8be00367 | 4759 | replace_rule_start(struct ofproto *ofproto, cls_version_t version, |
39c94593 JR |
4760 | struct rule *old_rule, struct rule *new_rule, |
4761 | struct cls_conjunction *conjs, size_t n_conjs) | |
4762 | { | |
4763 | struct oftable *table = &ofproto->tables[new_rule->table_id]; | |
834fe5cb | 4764 | |
6787a49f | 4765 | /* 'old_rule' may be either an evicted rule or replaced rule. */ |
39c94593 JR |
4766 | if (old_rule) { |
4767 | /* Mark the old rule for removal in the next version. */ | |
8be00367 | 4768 | cls_rule_make_invisible_in_version(&old_rule->cr, version); |
d79e3d70 JR |
4769 | } else { |
4770 | table->n_flows++; | |
dd27be82 | 4771 | } |
39c94593 JR |
4772 | /* Insert flow to the classifier, so that later flow_mods may relate |
4773 | * to it. This is reversible, in case later errors require this to | |
4774 | * be reverted. */ | |
4775 | ofproto_rule_insert__(ofproto, new_rule); | |
4776 | /* Make the new rule visible for classifier lookups only from the next | |
4777 | * version. */ | |
bd53aa17 | 4778 | classifier_insert(&table->cls, &new_rule->cr, version, conjs, n_conjs); |
39c94593 JR |
4779 | } |
4780 | ||
4781 | static void replace_rule_revert(struct ofproto *ofproto, | |
4782 | struct rule *old_rule, struct rule *new_rule) | |
4783 | { | |
4784 | struct oftable *table = &ofproto->tables[new_rule->table_id]; | |
35f48b8b | 4785 | |
39c94593 | 4786 | if (old_rule) { |
d79e3d70 | 4787 | /* Restore the original visibility of the old rule. */ |
39c94593 | 4788 | cls_rule_restore_visibility(&old_rule->cr); |
d79e3d70 JR |
4789 | } else { |
4790 | /* Restore table's rule count. */ | |
4791 | table->n_flows--; | |
834fe5cb BP |
4792 | } |
4793 | ||
39c94593 JR |
4794 | /* Remove the new rule immediately. It was never visible to lookups. */ |
4795 | if (!classifier_remove(&table->cls, &new_rule->cr)) { | |
4796 | OVS_NOT_REACHED(); | |
5ecc9d81 | 4797 | } |
39c94593 JR |
4798 | ofproto_rule_remove__(ofproto, new_rule); |
4799 | /* The rule was not inserted to the ofproto provider, so we can | |
4800 | * release it without deleting it from the ofproto provider. */ | |
4801 | ofproto_rule_unref(new_rule); | |
dd27be82 | 4802 | } |
79eee1eb | 4803 | |
39c94593 | 4804 | /* Adds the 'new_rule', replacing the 'old_rule'. */ |
dd27be82 | 4805 | static void |
39c94593 JR |
4806 | replace_rule_finish(struct ofproto *ofproto, struct ofputil_flow_mod *fm, |
4807 | const struct flow_mod_requester *req, | |
4808 | struct rule *old_rule, struct rule *new_rule, | |
4809 | struct ovs_list *dead_cookies) | |
dd27be82 JR |
4810 | OVS_REQUIRES(ofproto_mutex) |
4811 | { | |
39c94593 | 4812 | bool forward_stats = !(fm->flags & OFPUTIL_FF_RESET_COUNTS); |
6787a49f JR |
4813 | struct rule *replaced_rule; |
4814 | ||
4815 | replaced_rule = fm->delete_reason != OFPRR_EVICTION ? old_rule : NULL; | |
dd27be82 | 4816 | |
6787a49f JR |
4817 | /* Insert the new flow to the ofproto provider. A non-NULL 'replaced_rule' |
4818 | * is a duplicate rule the 'new_rule' is replacing. The provider should | |
4819 | * link the stats from the old rule to the new one if 'forward_stats' is | |
4820 | * 'true'. The 'replaced_rule' will be deleted right after this call. */ | |
4821 | ofproto->ofproto_class->rule_insert(new_rule, replaced_rule, | |
4822 | forward_stats); | |
39c94593 JR |
4823 | learned_cookies_inc(ofproto, rule_get_actions(new_rule)); |
4824 | ||
4825 | if (old_rule) { | |
4826 | const struct rule_actions *old_actions = rule_get_actions(old_rule); | |
4827 | ||
39c94593 JR |
4828 | /* Remove the old rule from data structures. Removal from the |
4829 | * classifier and the deletion of the rule is RCU postponed by the | |
4830 | * caller. */ | |
4831 | ofproto_rule_remove__(ofproto, old_rule); | |
4832 | learned_cookies_dec(ofproto, old_actions, dead_cookies); | |
4833 | ||
6787a49f JR |
4834 | if (replaced_rule) { |
4835 | enum nx_flow_update_event event = fm->command == OFPFC_ADD | |
4836 | ? NXFME_ADDED : NXFME_MODIFIED; | |
4837 | ||
4838 | bool change_cookie = (fm->modify_cookie | |
4839 | && fm->new_cookie != OVS_BE64_MAX | |
4840 | && fm->new_cookie != old_rule->flow_cookie); | |
4841 | ||
4842 | bool change_actions = !ofpacts_equal(fm->ofpacts, | |
4843 | fm->ofpacts_len, | |
4844 | old_actions->ofpacts, | |
4845 | old_actions->ofpacts_len); | |
4846 | ||
4847 | if (event != NXFME_MODIFIED || change_actions || change_cookie) { | |
4848 | ofmonitor_report(ofproto->connmgr, new_rule, event, 0, | |
4849 | req ? req->ofconn : NULL, | |
4850 | req ? req->request->xid : 0, | |
4851 | change_actions ? old_actions : NULL); | |
4852 | } | |
4853 | } else { | |
4854 | /* XXX: This is slight duplication with delete_flows_finish__() */ | |
4855 | ||
f695ebfa | 4856 | old_rule->removed_reason = OFPRR_EVICTION; |
6787a49f JR |
4857 | |
4858 | ofmonitor_report(ofproto->connmgr, old_rule, NXFME_DELETED, | |
4859 | OFPRR_EVICTION, | |
39c94593 | 4860 | req ? req->ofconn : NULL, |
6787a49f | 4861 | req ? req->request->xid : 0, NULL); |
39c94593 | 4862 | } |
dd27be82 | 4863 | } |
9ed18e46 BP |
4864 | } |
4865 | ||
9387b970 | 4866 | static enum ofperr |
8be00367 | 4867 | modify_flows_start__(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
dd27be82 JR |
4868 | OVS_REQUIRES(ofproto_mutex) |
4869 | { | |
8be00367 JR |
4870 | struct ofputil_flow_mod *fm = &ofm->fm; |
4871 | struct rule_collection *old_rules = &ofm->old_rules; | |
4872 | struct rule_collection *new_rules = &ofm->new_rules; | |
dd27be82 JR |
4873 | enum ofperr error; |
4874 | ||
39c94593 JR |
4875 | rule_collection_init(new_rules); |
4876 | ||
4877 | if (old_rules->n > 0) { | |
4878 | struct cls_conjunction *conjs; | |
4879 | size_t n_conjs; | |
4880 | size_t i; | |
4881 | ||
4882 | /* Create a new 'modified' rule for each old rule. */ | |
4883 | for (i = 0; i < old_rules->n; i++) { | |
4884 | struct rule *old_rule = old_rules->rules[i]; | |
4885 | struct rule *new_rule; | |
4886 | struct cls_rule cr; | |
4887 | ||
bd53aa17 | 4888 | cls_rule_clone(&cr, &old_rule->cr); |
39c94593 JR |
4889 | error = replace_rule_create(ofproto, fm, &cr, old_rule->table_id, |
4890 | old_rule, &new_rule); | |
4891 | if (!error) { | |
4892 | rule_collection_add(new_rules, new_rule); | |
4893 | } else { | |
4894 | rule_collection_unref(new_rules); | |
4895 | rule_collection_destroy(new_rules); | |
4896 | return error; | |
4897 | } | |
4898 | } | |
4899 | ovs_assert(new_rules->n == old_rules->n); | |
4900 | ||
4901 | get_conjunctions(fm, &conjs, &n_conjs); | |
4902 | for (i = 0; i < old_rules->n; i++) { | |
8be00367 | 4903 | replace_rule_start(ofproto, ofm->version, old_rules->rules[i], |
39c94593 JR |
4904 | new_rules->rules[i], conjs, n_conjs); |
4905 | } | |
4906 | free(conjs); | |
d99f64d7 JR |
4907 | } else if (!(fm->cookie_mask != htonll(0) |
4908 | || fm->new_cookie == OVS_BE64_MAX)) { | |
39c94593 | 4909 | /* No match, add a new flow. */ |
8be00367 | 4910 | error = add_flow_start(ofproto, ofm); |
dd27be82 | 4911 | if (!error) { |
6787a49f JR |
4912 | ovs_assert(fm->delete_reason == OFPRR_EVICTION |
4913 | || !old_rules->rules[0]); | |
dd27be82 | 4914 | } |
39c94593 | 4915 | new_rules->n = 1; |
dd27be82 | 4916 | } else { |
d99f64d7 | 4917 | error = 0; |
dd27be82 | 4918 | } |
39c94593 | 4919 | |
dd27be82 JR |
4920 | return error; |
4921 | } | |
4922 | ||
90bf1e07 BP |
4923 | /* Implements OFPFC_MODIFY. Returns 0 on success or an OpenFlow error code on |
4924 | * failure. | |
9ed18e46 BP |
4925 | * |
4926 | * 'ofconn' is used to retrieve the packet buffer specified in fm->buffer_id, | |
4927 | * if any. */ | |
90bf1e07 | 4928 | static enum ofperr |
8be00367 | 4929 | modify_flows_start_loose(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
15aaf599 | 4930 | OVS_REQUIRES(ofproto_mutex) |
9ed18e46 | 4931 | { |
8be00367 JR |
4932 | struct ofputil_flow_mod *fm = &ofm->fm; |
4933 | struct rule_collection *old_rules = &ofm->old_rules; | |
a9b22b7f | 4934 | struct rule_criteria criteria; |
d51c8b71 | 4935 | enum ofperr error; |
9ed18e46 | 4936 | |
2b7b1427 | 4937 | rule_criteria_init(&criteria, fm->table_id, &fm->match, 0, CLS_MAX_VERSION, |
30ef36c6 | 4938 | fm->cookie, fm->cookie_mask, OFPP_ANY, OFPG_ANY); |
dd51dae2 BP |
4939 | rule_criteria_require_rw(&criteria, |
4940 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
39c94593 | 4941 | error = collect_rules_loose(ofproto, &criteria, old_rules); |
a9b22b7f BP |
4942 | rule_criteria_destroy(&criteria); |
4943 | ||
a8e547c1 | 4944 | if (!error) { |
8be00367 | 4945 | error = modify_flows_start__(ofproto, ofm); |
d99f64d7 JR |
4946 | } |
4947 | ||
4948 | if (error) { | |
39c94593 | 4949 | rule_collection_destroy(old_rules); |
d99f64d7 JR |
4950 | } |
4951 | return error; | |
4952 | } | |
4953 | ||
1f42be1c | 4954 | static void |
8be00367 | 4955 | modify_flows_revert(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
1f42be1c JR |
4956 | OVS_REQUIRES(ofproto_mutex) |
4957 | { | |
8be00367 JR |
4958 | struct rule_collection *old_rules = &ofm->old_rules; |
4959 | struct rule_collection *new_rules = &ofm->new_rules; | |
4960 | ||
39c94593 JR |
4961 | /* Old rules were not changed yet, only need to revert new rules. */ |
4962 | if (old_rules->n == 0 && new_rules->n == 1) { | |
8be00367 | 4963 | add_flow_revert(ofproto, ofm); |
39c94593 JR |
4964 | } else if (old_rules->n > 0) { |
4965 | for (size_t i = 0; i < old_rules->n; i++) { | |
4966 | replace_rule_revert(ofproto, old_rules->rules[i], | |
4967 | new_rules->rules[i]); | |
4968 | } | |
4969 | rule_collection_destroy(new_rules); | |
4970 | rule_collection_destroy(old_rules); | |
1f42be1c | 4971 | } |
1f42be1c JR |
4972 | } |
4973 | ||
d99f64d7 | 4974 | static void |
8be00367 JR |
4975 | modify_flows_finish(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
4976 | const struct flow_mod_requester *req) | |
d99f64d7 JR |
4977 | OVS_REQUIRES(ofproto_mutex) |
4978 | { | |
8be00367 JR |
4979 | struct ofputil_flow_mod *fm = &ofm->fm; |
4980 | struct rule_collection *old_rules = &ofm->old_rules; | |
4981 | struct rule_collection *new_rules = &ofm->new_rules; | |
4982 | ||
39c94593 | 4983 | if (old_rules->n == 0 && new_rules->n == 1) { |
8be00367 | 4984 | add_flow_finish(ofproto, ofm, req); |
39c94593 JR |
4985 | } else if (old_rules->n > 0) { |
4986 | struct ovs_list dead_cookies = OVS_LIST_INITIALIZER(&dead_cookies); | |
4987 | ||
4988 | ovs_assert(new_rules->n == old_rules->n); | |
4989 | ||
4990 | for (size_t i = 0; i < old_rules->n; i++) { | |
4991 | replace_rule_finish(ofproto, fm, req, old_rules->rules[i], | |
4992 | new_rules->rules[i], &dead_cookies); | |
4993 | } | |
4994 | learned_cookies_flush(ofproto, &dead_cookies); | |
4995 | rule_collection_remove_postponed(old_rules); | |
4996 | ||
4997 | send_buffered_packet(req, fm->buffer_id, new_rules->rules[0]); | |
4998 | rule_collection_destroy(new_rules); | |
d99f64d7 | 4999 | } |
d99f64d7 JR |
5000 | } |
5001 | ||
79eee1eb | 5002 | /* Implements OFPFC_MODIFY_STRICT. Returns 0 on success or an OpenFlow error |
baae3d02 | 5003 | * code on failure. */ |
90bf1e07 | 5004 | static enum ofperr |
8be00367 | 5005 | modify_flow_start_strict(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
15aaf599 | 5006 | OVS_REQUIRES(ofproto_mutex) |
79eee1eb | 5007 | { |
8be00367 JR |
5008 | struct ofputil_flow_mod *fm = &ofm->fm; |
5009 | struct rule_collection *old_rules = &ofm->old_rules; | |
a9b22b7f | 5010 | struct rule_criteria criteria; |
d51c8b71 | 5011 | enum ofperr error; |
6c1491fb | 5012 | |
a9b22b7f | 5013 | rule_criteria_init(&criteria, fm->table_id, &fm->match, fm->priority, |
2b7b1427 | 5014 | CLS_MAX_VERSION, fm->cookie, fm->cookie_mask, OFPP_ANY, |
30ef36c6 | 5015 | OFPG_ANY); |
dd51dae2 BP |
5016 | rule_criteria_require_rw(&criteria, |
5017 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
39c94593 | 5018 | error = collect_rules_strict(ofproto, &criteria, old_rules); |
a9b22b7f BP |
5019 | rule_criteria_destroy(&criteria); |
5020 | ||
a8e547c1 | 5021 | if (!error) { |
dd27be82 | 5022 | /* collect_rules_strict() can return max 1 rule. */ |
8be00367 | 5023 | error = modify_flows_start__(ofproto, ofm); |
d99f64d7 JR |
5024 | } |
5025 | ||
5026 | if (error) { | |
39c94593 | 5027 | rule_collection_destroy(old_rules); |
d99f64d7 JR |
5028 | } |
5029 | return error; | |
5030 | } | |
9ed18e46 BP |
5031 | \f |
5032 | /* OFPFC_DELETE implementation. */ | |
79eee1eb | 5033 | |
254750ce | 5034 | static void |
8be00367 | 5035 | delete_flows_start__(struct ofproto *ofproto, cls_version_t version, |
39c94593 JR |
5036 | const struct rule_collection *rules) |
5037 | OVS_REQUIRES(ofproto_mutex) | |
5038 | { | |
5039 | for (size_t i = 0; i < rules->n; i++) { | |
d79e3d70 JR |
5040 | struct rule *rule = rules->rules[i]; |
5041 | struct oftable *table = &ofproto->tables[rule->table_id]; | |
5042 | ||
5043 | table->n_flows--; | |
8be00367 | 5044 | cls_rule_make_invisible_in_version(&rule->cr, version); |
39c94593 JR |
5045 | } |
5046 | } | |
5047 | ||
5048 | static void | |
5049 | delete_flows_finish__(struct ofproto *ofproto, | |
5050 | struct rule_collection *rules, | |
5051 | enum ofp_flow_removed_reason reason, | |
5052 | const struct flow_mod_requester *req) | |
15aaf599 | 5053 | OVS_REQUIRES(ofproto_mutex) |
064af421 | 5054 | { |
9ca4a86f | 5055 | if (rules->n) { |
55951e15 | 5056 | struct ovs_list dead_cookies = OVS_LIST_INITIALIZER(&dead_cookies); |
79eee1eb | 5057 | |
39c94593 JR |
5058 | for (size_t i = 0; i < rules->n; i++) { |
5059 | struct rule *rule = rules->rules[i]; | |
79eee1eb | 5060 | |
f695ebfa JR |
5061 | /* This value will be used to send the flow removed message right |
5062 | * before the rule is actually destroyed. */ | |
5063 | rule->removed_reason = reason; | |
5064 | ||
9ca4a86f | 5065 | ofmonitor_report(ofproto->connmgr, rule, NXFME_DELETED, reason, |
c84d8691 JR |
5066 | req ? req->ofconn : NULL, |
5067 | req ? req->request->xid : 0, NULL); | |
802f84ff | 5068 | ofproto_rule_remove__(ofproto, rule); |
802f84ff JR |
5069 | learned_cookies_dec(ofproto, rule_get_actions(rule), |
5070 | &dead_cookies); | |
9ca4a86f | 5071 | } |
39c94593 JR |
5072 | rule_collection_remove_postponed(rules); |
5073 | ||
35f48b8b | 5074 | learned_cookies_flush(ofproto, &dead_cookies); |
39c94593 JR |
5075 | } |
5076 | } | |
5077 | ||
5078 | /* Deletes the rules listed in 'rules'. | |
5079 | * The deleted rules will become invisible to the lookups in the next version. | |
5080 | * Destroys 'rules'. */ | |
5081 | static void | |
5082 | delete_flows__(struct rule_collection *rules, | |
5083 | enum ofp_flow_removed_reason reason, | |
5084 | const struct flow_mod_requester *req) | |
5085 | OVS_REQUIRES(ofproto_mutex) | |
5086 | { | |
5087 | if (rules->n) { | |
5088 | struct ofproto *ofproto = rules->rules[0]->ofproto; | |
5089 | ||
8be00367 | 5090 | delete_flows_start__(ofproto, ofproto->tables_version + 1, rules); |
39c94593 JR |
5091 | ofproto_bump_tables_version(ofproto); |
5092 | delete_flows_finish__(ofproto, rules, reason, req); | |
9ca4a86f BP |
5093 | ofmonitor_flush(ofproto->connmgr); |
5094 | } | |
79eee1eb | 5095 | } |
79eee1eb BP |
5096 | |
5097 | /* Implements OFPFC_DELETE. */ | |
90bf1e07 | 5098 | static enum ofperr |
8be00367 | 5099 | delete_flows_start_loose(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
15aaf599 | 5100 | OVS_REQUIRES(ofproto_mutex) |
79eee1eb | 5101 | { |
8be00367 JR |
5102 | const struct ofputil_flow_mod *fm = &ofm->fm; |
5103 | struct rule_collection *rules = &ofm->old_rules; | |
a9b22b7f | 5104 | struct rule_criteria criteria; |
90bf1e07 | 5105 | enum ofperr error; |
064af421 | 5106 | |
2b7b1427 | 5107 | rule_criteria_init(&criteria, fm->table_id, &fm->match, 0, CLS_MAX_VERSION, |
39c94593 JR |
5108 | fm->cookie, fm->cookie_mask, fm->out_port, |
5109 | fm->out_group); | |
dd51dae2 BP |
5110 | rule_criteria_require_rw(&criteria, |
5111 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
ce59413f | 5112 | error = collect_rules_loose(ofproto, &criteria, rules); |
a9b22b7f BP |
5113 | rule_criteria_destroy(&criteria); |
5114 | ||
802f84ff | 5115 | if (!error) { |
8be00367 | 5116 | delete_flows_start__(ofproto, ofm->version, rules); |
a8e547c1 | 5117 | } |
a8e547c1 BP |
5118 | |
5119 | return error; | |
064af421 BP |
5120 | } |
5121 | ||
ce59413f | 5122 | static void |
8be00367 | 5123 | delete_flows_revert(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
ce59413f JR |
5124 | OVS_REQUIRES(ofproto_mutex) |
5125 | { | |
8be00367 JR |
5126 | struct rule_collection *rules = &ofm->old_rules; |
5127 | ||
1f42be1c | 5128 | for (size_t i = 0; i < rules->n; i++) { |
39c94593 | 5129 | struct rule *rule = rules->rules[i]; |
d79e3d70 JR |
5130 | struct oftable *table = &ofproto->tables[rule->table_id]; |
5131 | ||
5132 | /* Restore table's rule count. */ | |
5133 | table->n_flows++; | |
39c94593 JR |
5134 | |
5135 | /* Restore the original visibility of the rule. */ | |
5136 | cls_rule_restore_visibility(&rule->cr); | |
1f42be1c | 5137 | } |
ce59413f JR |
5138 | rule_collection_destroy(rules); |
5139 | } | |
5140 | ||
1f42be1c | 5141 | static void |
39c94593 | 5142 | delete_flows_finish(struct ofproto *ofproto, |
8be00367 JR |
5143 | struct ofproto_flow_mod *ofm, |
5144 | const struct flow_mod_requester *req) | |
15aaf599 | 5145 | OVS_REQUIRES(ofproto_mutex) |
79eee1eb | 5146 | { |
8be00367 JR |
5147 | delete_flows_finish__(ofproto, &ofm->old_rules, ofm->fm.delete_reason, |
5148 | req); | |
ce59413f JR |
5149 | } |
5150 | ||
5151 | /* Implements OFPFC_DELETE_STRICT. */ | |
5152 | static enum ofperr | |
4fcb2083 | 5153 | delete_flow_start_strict(struct ofproto *ofproto, |
8be00367 | 5154 | struct ofproto_flow_mod *ofm) |
ce59413f JR |
5155 | OVS_REQUIRES(ofproto_mutex) |
5156 | { | |
8be00367 JR |
5157 | const struct ofputil_flow_mod *fm = &ofm->fm; |
5158 | struct rule_collection *rules = &ofm->old_rules; | |
ce59413f JR |
5159 | struct rule_criteria criteria; |
5160 | enum ofperr error; | |
5161 | ||
a9b22b7f | 5162 | rule_criteria_init(&criteria, fm->table_id, &fm->match, fm->priority, |
2b7b1427 | 5163 | CLS_MAX_VERSION, fm->cookie, fm->cookie_mask, |
a9b22b7f | 5164 | fm->out_port, fm->out_group); |
dd51dae2 BP |
5165 | rule_criteria_require_rw(&criteria, |
5166 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
ce59413f | 5167 | error = collect_rules_strict(ofproto, &criteria, rules); |
a9b22b7f BP |
5168 | rule_criteria_destroy(&criteria); |
5169 | ||
802f84ff | 5170 | if (!error) { |
8be00367 | 5171 | delete_flows_start__(ofproto, ofm->version, rules); |
ce59413f JR |
5172 | } |
5173 | ||
5174 | return error; | |
5175 | } | |
5176 | ||
f695ebfa | 5177 | /* This may only be called by rule_destroy_cb()! */ |
abe529af | 5178 | static void |
f695ebfa JR |
5179 | ofproto_rule_send_removed(struct rule *rule) |
5180 | OVS_EXCLUDED(ofproto_mutex) | |
abe529af BP |
5181 | { |
5182 | struct ofputil_flow_removed fr; | |
dc437090 | 5183 | long long int used; |
abe529af | 5184 | |
5cb7a798 | 5185 | minimatch_expand(&rule->cr.match, &fr.match); |
81a76618 | 5186 | fr.priority = rule->cr.priority; |
f695ebfa JR |
5187 | |
5188 | ovs_mutex_lock(&ofproto_mutex); | |
abe529af | 5189 | fr.cookie = rule->flow_cookie; |
f695ebfa | 5190 | fr.reason = rule->removed_reason; |
95216219 | 5191 | fr.table_id = rule->table_id; |
65e0be10 BP |
5192 | calc_duration(rule->created, time_msec(), |
5193 | &fr.duration_sec, &fr.duration_nsec); | |
d10976b7 | 5194 | ovs_mutex_lock(&rule->mutex); |
abe529af | 5195 | fr.idle_timeout = rule->idle_timeout; |
fa2bad0f | 5196 | fr.hard_timeout = rule->hard_timeout; |
d10976b7 | 5197 | ovs_mutex_unlock(&rule->mutex); |
abe529af | 5198 | rule->ofproto->ofproto_class->rule_get_stats(rule, &fr.packet_count, |
dc437090 | 5199 | &fr.byte_count, &used); |
abe529af | 5200 | connmgr_send_flow_removed(rule->ofproto->connmgr, &fr); |
f695ebfa | 5201 | ovs_mutex_unlock(&ofproto_mutex); |
abe529af BP |
5202 | } |
5203 | ||
5204 | /* Sends an OpenFlow "flow removed" message with the given 'reason' (either | |
5205 | * OFPRR_HARD_TIMEOUT or OFPRR_IDLE_TIMEOUT), and then removes 'rule' from its | |
5206 | * ofproto. | |
5207 | * | |
5208 | * ofproto implementation ->run() functions should use this function to expire | |
5209 | * OpenFlow flows. */ | |
5210 | void | |
5211 | ofproto_rule_expire(struct rule *rule, uint8_t reason) | |
15aaf599 | 5212 | OVS_REQUIRES(ofproto_mutex) |
abe529af | 5213 | { |
802f84ff JR |
5214 | struct rule_collection rules; |
5215 | ||
5216 | rules.rules = rules.stub; | |
5217 | rules.n = 1; | |
5218 | rules.stub[0] = rule; | |
5219 | delete_flows__(&rules, reason, NULL); | |
79eee1eb | 5220 | } |
994c9973 BP |
5221 | |
5222 | /* Reduces '*timeout' to no more than 'max'. A value of zero in either case | |
5223 | * means "infinite". */ | |
5224 | static void | |
5225 | reduce_timeout(uint16_t max, uint16_t *timeout) | |
5226 | { | |
5227 | if (max && (!*timeout || *timeout > max)) { | |
5228 | *timeout = max; | |
5229 | } | |
5230 | } | |
5231 | ||
5232 | /* If 'idle_timeout' is nonzero, and 'rule' has no idle timeout or an idle | |
5233 | * timeout greater than 'idle_timeout', lowers 'rule''s idle timeout to | |
5234 | * 'idle_timeout' seconds. Similarly for 'hard_timeout'. | |
5235 | * | |
5236 | * Suitable for implementing OFPACT_FIN_TIMEOUT. */ | |
5237 | void | |
5238 | ofproto_rule_reduce_timeouts(struct rule *rule, | |
5239 | uint16_t idle_timeout, uint16_t hard_timeout) | |
d10976b7 | 5240 | OVS_EXCLUDED(ofproto_mutex, rule->mutex) |
994c9973 BP |
5241 | { |
5242 | if (!idle_timeout && !hard_timeout) { | |
5243 | return; | |
5244 | } | |
5245 | ||
abe7b10f | 5246 | ovs_mutex_lock(&ofproto_mutex); |
994c9973 BP |
5247 | if (list_is_empty(&rule->expirable)) { |
5248 | list_insert(&rule->ofproto->expirable, &rule->expirable); | |
5249 | } | |
abe7b10f | 5250 | ovs_mutex_unlock(&ofproto_mutex); |
994c9973 | 5251 | |
d10976b7 | 5252 | ovs_mutex_lock(&rule->mutex); |
994c9973 BP |
5253 | reduce_timeout(idle_timeout, &rule->idle_timeout); |
5254 | reduce_timeout(hard_timeout, &rule->hard_timeout); | |
d10976b7 | 5255 | ovs_mutex_unlock(&rule->mutex); |
994c9973 | 5256 | } |
79eee1eb | 5257 | \f |
90bf1e07 | 5258 | static enum ofperr |
2e4f5fcf | 5259 | handle_flow_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
15aaf599 | 5260 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 5261 | { |
a5b8d268 | 5262 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
8be00367 | 5263 | struct ofproto_flow_mod ofm; |
f25d0cf3 BP |
5264 | uint64_t ofpacts_stub[1024 / 8]; |
5265 | struct ofpbuf ofpacts; | |
90bf1e07 | 5266 | enum ofperr error; |
064af421 | 5267 | |
76589937 | 5268 | error = reject_slave_controller(ofconn); |
9deba63b | 5269 | if (error) { |
f25d0cf3 | 5270 | goto exit; |
9deba63b | 5271 | } |
3052b0c5 | 5272 | |
f25d0cf3 | 5273 | ofpbuf_use_stub(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); |
8be00367 | 5274 | error = ofputil_decode_flow_mod(&ofm.fm, oh, ofconn_get_protocol(ofconn), |
7e9f8266 BP |
5275 | &ofpacts, |
5276 | u16_to_ofp(ofproto->max_ports), | |
5277 | ofproto->n_tables); | |
5278 | if (!error) { | |
8be00367 JR |
5279 | error = ofproto_check_ofpacts(ofproto, ofm.fm.ofpacts, |
5280 | ofm.fm.ofpacts_len); | |
7e9f8266 | 5281 | } |
548de4dd | 5282 | if (!error) { |
baae3d02 BP |
5283 | struct flow_mod_requester req; |
5284 | ||
5285 | req.ofconn = ofconn; | |
c84d8691 | 5286 | req.request = oh; |
8be00367 | 5287 | error = handle_flow_mod__(ofproto, &ofm, &req); |
49bdc010 | 5288 | } |
a5b8d268 | 5289 | if (error) { |
f25d0cf3 | 5290 | goto exit_free_ofpacts; |
a5b8d268 | 5291 | } |
2e310801 | 5292 | |
8be00367 | 5293 | ofconn_report_flow_mod(ofconn, ofm.fm.command); |
a5b8d268 | 5294 | |
f25d0cf3 BP |
5295 | exit_free_ofpacts: |
5296 | ofpbuf_uninit(&ofpacts); | |
5297 | exit: | |
5298 | return error; | |
75a75043 BP |
5299 | } |
5300 | ||
90bf1e07 | 5301 | static enum ofperr |
8be00367 | 5302 | handle_flow_mod__(struct ofproto *ofproto, struct ofproto_flow_mod *ofm, |
baae3d02 | 5303 | const struct flow_mod_requester *req) |
15aaf599 | 5304 | OVS_EXCLUDED(ofproto_mutex) |
75a75043 | 5305 | { |
35412852 | 5306 | enum ofperr error; |
75a75043 | 5307 | |
15aaf599 | 5308 | ovs_mutex_lock(&ofproto_mutex); |
8be00367 JR |
5309 | ofm->version = ofproto->tables_version + 1; |
5310 | error = ofproto_flow_mod_start(ofproto, ofm); | |
1f42be1c | 5311 | if (!error) { |
39c94593 | 5312 | ofproto_bump_tables_version(ofproto); |
8be00367 | 5313 | ofproto_flow_mod_finish(ofproto, ofm, req); |
3052b0c5 | 5314 | } |
baae3d02 | 5315 | ofmonitor_flush(ofproto->connmgr); |
15aaf599 | 5316 | ovs_mutex_unlock(&ofproto_mutex); |
35412852 BP |
5317 | |
5318 | run_rule_executes(ofproto); | |
5319 | return error; | |
3052b0c5 BP |
5320 | } |
5321 | ||
90bf1e07 | 5322 | static enum ofperr |
d1e2cf21 | 5323 | handle_role_request(struct ofconn *ofconn, const struct ofp_header *oh) |
9deba63b | 5324 | { |
f4f1ea7e BP |
5325 | struct ofputil_role_request request; |
5326 | struct ofputil_role_request reply; | |
9deba63b | 5327 | struct ofpbuf *buf; |
6ea4776b JR |
5328 | enum ofperr error; |
5329 | ||
f4f1ea7e | 5330 | error = ofputil_decode_role_message(oh, &request); |
6ea4776b JR |
5331 | if (error) { |
5332 | return error; | |
5333 | } | |
9deba63b | 5334 | |
f4f1ea7e | 5335 | if (request.role != OFPCR12_ROLE_NOCHANGE) { |
d26eda9f BP |
5336 | if (request.role != OFPCR12_ROLE_EQUAL |
5337 | && request.have_generation_id | |
f4f1ea7e BP |
5338 | && !ofconn_set_master_election_id(ofconn, request.generation_id)) { |
5339 | return OFPERR_OFPRRFC_STALE; | |
6ea4776b | 5340 | } |
6ea4776b | 5341 | |
f4f1ea7e BP |
5342 | ofconn_set_role(ofconn, request.role); |
5343 | } | |
9deba63b | 5344 | |
f4f1ea7e | 5345 | reply.role = ofconn_get_role(ofconn); |
147cc9d3 BP |
5346 | reply.have_generation_id = ofconn_get_master_election_id( |
5347 | ofconn, &reply.generation_id); | |
f4f1ea7e | 5348 | buf = ofputil_encode_role_reply(oh, &reply); |
b0421aa2 | 5349 | ofconn_send_reply(ofconn, buf); |
9deba63b BP |
5350 | |
5351 | return 0; | |
5352 | } | |
5353 | ||
90bf1e07 | 5354 | static enum ofperr |
6c1491fb BP |
5355 | handle_nxt_flow_mod_table_id(struct ofconn *ofconn, |
5356 | const struct ofp_header *oh) | |
5357 | { | |
982697a4 | 5358 | const struct nx_flow_mod_table_id *msg = ofpmsg_body(oh); |
27527aa0 BP |
5359 | enum ofputil_protocol cur, next; |
5360 | ||
5361 | cur = ofconn_get_protocol(ofconn); | |
5362 | next = ofputil_protocol_set_tid(cur, msg->set != 0); | |
5363 | ofconn_set_protocol(ofconn, next); | |
6c1491fb | 5364 | |
6c1491fb BP |
5365 | return 0; |
5366 | } | |
5367 | ||
90bf1e07 | 5368 | static enum ofperr |
d1e2cf21 | 5369 | handle_nxt_set_flow_format(struct ofconn *ofconn, const struct ofp_header *oh) |
09246b99 | 5370 | { |
982697a4 | 5371 | const struct nx_set_flow_format *msg = ofpmsg_body(oh); |
27527aa0 BP |
5372 | enum ofputil_protocol cur, next; |
5373 | enum ofputil_protocol next_base; | |
09246b99 | 5374 | |
27527aa0 BP |
5375 | next_base = ofputil_nx_flow_format_to_protocol(ntohl(msg->format)); |
5376 | if (!next_base) { | |
90bf1e07 | 5377 | return OFPERR_OFPBRC_EPERM; |
09246b99 | 5378 | } |
7ee20df1 | 5379 | |
27527aa0 BP |
5380 | cur = ofconn_get_protocol(ofconn); |
5381 | next = ofputil_protocol_set_base(cur, next_base); | |
27527aa0 | 5382 | ofconn_set_protocol(ofconn, next); |
b20f4073 | 5383 | |
7ee20df1 | 5384 | return 0; |
09246b99 BP |
5385 | } |
5386 | ||
90bf1e07 | 5387 | static enum ofperr |
54834960 EJ |
5388 | handle_nxt_set_packet_in_format(struct ofconn *ofconn, |
5389 | const struct ofp_header *oh) | |
5390 | { | |
982697a4 | 5391 | const struct nx_set_packet_in_format *msg = ofpmsg_body(oh); |
54834960 EJ |
5392 | uint32_t format; |
5393 | ||
54834960 | 5394 | format = ntohl(msg->format); |
a15f0eeb | 5395 | if (format != NXPIF_OPENFLOW10 && format != NXPIF_NXM) { |
90bf1e07 | 5396 | return OFPERR_OFPBRC_EPERM; |
54834960 EJ |
5397 | } |
5398 | ||
54834960 EJ |
5399 | ofconn_set_packet_in_format(ofconn, format); |
5400 | return 0; | |
5401 | } | |
5402 | ||
80d5aefd BP |
5403 | static enum ofperr |
5404 | handle_nxt_set_async_config(struct ofconn *ofconn, const struct ofp_header *oh) | |
5405 | { | |
5876b4db BP |
5406 | struct ofputil_async_cfg basis = ofconn_get_async_config(ofconn); |
5407 | struct ofputil_async_cfg ac; | |
d18cc1ee | 5408 | enum ofperr error; |
80d5aefd | 5409 | |
5876b4db | 5410 | error = ofputil_decode_set_async_config(oh, false, &basis, &ac); |
d18cc1ee AA |
5411 | if (error) { |
5412 | return error; | |
5413 | } | |
80d5aefd | 5414 | |
a930d4c5 | 5415 | ofconn_set_async_config(ofconn, &ac); |
4550b647 MM |
5416 | if (ofconn_get_type(ofconn) == OFCONN_SERVICE && |
5417 | !ofconn_get_miss_send_len(ofconn)) { | |
5418 | ofconn_set_miss_send_len(ofconn, OFP_DEFAULT_MISS_SEND_LEN); | |
5419 | } | |
80d5aefd BP |
5420 | |
5421 | return 0; | |
5422 | } | |
5423 | ||
c423b3b3 AC |
5424 | static enum ofperr |
5425 | handle_nxt_get_async_request(struct ofconn *ofconn, const struct ofp_header *oh) | |
5426 | { | |
a930d4c5 BP |
5427 | struct ofputil_async_cfg ac = ofconn_get_async_config(ofconn); |
5428 | ofconn_send_reply(ofconn, ofputil_encode_get_async_config(oh, &ac)); | |
c423b3b3 AC |
5429 | |
5430 | return 0; | |
5431 | } | |
5432 | ||
a7349929 BP |
5433 | static enum ofperr |
5434 | handle_nxt_set_controller_id(struct ofconn *ofconn, | |
5435 | const struct ofp_header *oh) | |
5436 | { | |
982697a4 | 5437 | const struct nx_controller_id *nci = ofpmsg_body(oh); |
a7349929 | 5438 | |
a7349929 BP |
5439 | if (!is_all_zeros(nci->zero, sizeof nci->zero)) { |
5440 | return OFPERR_NXBRC_MUST_BE_ZERO; | |
5441 | } | |
5442 | ||
5443 | ofconn_set_controller_id(ofconn, ntohs(nci->controller_id)); | |
5444 | return 0; | |
5445 | } | |
5446 | ||
90bf1e07 | 5447 | static enum ofperr |
d1e2cf21 | 5448 | handle_barrier_request(struct ofconn *ofconn, const struct ofp_header *oh) |
246e61ea | 5449 | { |
246e61ea JP |
5450 | struct ofpbuf *buf; |
5451 | ||
982697a4 BP |
5452 | buf = ofpraw_alloc_reply((oh->version == OFP10_VERSION |
5453 | ? OFPRAW_OFPT10_BARRIER_REPLY | |
5454 | : OFPRAW_OFPT11_BARRIER_REPLY), oh, 0); | |
b0421aa2 | 5455 | ofconn_send_reply(ofconn, buf); |
246e61ea JP |
5456 | return 0; |
5457 | } | |
5458 | ||
2b07c8b1 BP |
5459 | static void |
5460 | ofproto_compose_flow_refresh_update(const struct rule *rule, | |
5461 | enum nx_flow_monitor_flags flags, | |
ca6ba700 | 5462 | struct ovs_list *msgs) |
15aaf599 | 5463 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 | 5464 | { |
6f00e29b | 5465 | const struct rule_actions *actions; |
2b07c8b1 | 5466 | struct ofputil_flow_update fu; |
5cb7a798 | 5467 | struct match match; |
2b07c8b1 | 5468 | |
2b07c8b1 BP |
5469 | fu.event = (flags & (NXFMF_INITIAL | NXFMF_ADD) |
5470 | ? NXFME_ADDED : NXFME_MODIFIED); | |
5471 | fu.reason = 0; | |
d10976b7 | 5472 | ovs_mutex_lock(&rule->mutex); |
2b07c8b1 BP |
5473 | fu.idle_timeout = rule->idle_timeout; |
5474 | fu.hard_timeout = rule->hard_timeout; | |
d10976b7 | 5475 | ovs_mutex_unlock(&rule->mutex); |
2b07c8b1 BP |
5476 | fu.table_id = rule->table_id; |
5477 | fu.cookie = rule->flow_cookie; | |
5cb7a798 BP |
5478 | minimatch_expand(&rule->cr.match, &match); |
5479 | fu.match = &match; | |
6b140a4e | 5480 | fu.priority = rule->cr.priority; |
6f00e29b | 5481 | |
b20f4073 | 5482 | actions = flags & NXFMF_ACTIONS ? rule_get_actions(rule) : NULL; |
6f00e29b BP |
5483 | fu.ofpacts = actions ? actions->ofpacts : NULL; |
5484 | fu.ofpacts_len = actions ? actions->ofpacts_len : 0; | |
2b07c8b1 BP |
5485 | |
5486 | if (list_is_empty(msgs)) { | |
5487 | ofputil_start_flow_update(msgs); | |
5488 | } | |
5489 | ofputil_append_flow_update(&fu, msgs); | |
5490 | } | |
5491 | ||
5492 | void | |
a8e547c1 | 5493 | ofmonitor_compose_refresh_updates(struct rule_collection *rules, |
ca6ba700 | 5494 | struct ovs_list *msgs) |
15aaf599 | 5495 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 | 5496 | { |
a8e547c1 | 5497 | size_t i; |
2b07c8b1 | 5498 | |
a8e547c1 BP |
5499 | for (i = 0; i < rules->n; i++) { |
5500 | struct rule *rule = rules->rules[i]; | |
2b07c8b1 BP |
5501 | enum nx_flow_monitor_flags flags = rule->monitor_flags; |
5502 | rule->monitor_flags = 0; | |
5503 | ||
5504 | ofproto_compose_flow_refresh_update(rule, flags, msgs); | |
5505 | } | |
5506 | } | |
5507 | ||
5508 | static void | |
5509 | ofproto_collect_ofmonitor_refresh_rule(const struct ofmonitor *m, | |
5510 | struct rule *rule, uint64_t seqno, | |
a8e547c1 | 5511 | struct rule_collection *rules) |
15aaf599 | 5512 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
5513 | { |
5514 | enum nx_flow_monitor_flags update; | |
5515 | ||
5e8b38b0 | 5516 | if (rule_is_hidden(rule)) { |
2b07c8b1 BP |
5517 | return; |
5518 | } | |
5519 | ||
b20f4073 | 5520 | if (!ofproto_rule_has_out_port(rule, m->out_port)) { |
2b07c8b1 BP |
5521 | return; |
5522 | } | |
5523 | ||
5524 | if (seqno) { | |
5525 | if (rule->add_seqno > seqno) { | |
5526 | update = NXFMF_ADD | NXFMF_MODIFY; | |
5527 | } else if (rule->modify_seqno > seqno) { | |
5528 | update = NXFMF_MODIFY; | |
5529 | } else { | |
5530 | return; | |
5531 | } | |
5532 | ||
5533 | if (!(m->flags & update)) { | |
5534 | return; | |
5535 | } | |
5536 | } else { | |
5537 | update = NXFMF_INITIAL; | |
5538 | } | |
5539 | ||
5540 | if (!rule->monitor_flags) { | |
a8e547c1 | 5541 | rule_collection_add(rules, rule); |
2b07c8b1 BP |
5542 | } |
5543 | rule->monitor_flags |= update | (m->flags & NXFMF_ACTIONS); | |
5544 | } | |
5545 | ||
5546 | static void | |
5547 | ofproto_collect_ofmonitor_refresh_rules(const struct ofmonitor *m, | |
5548 | uint64_t seqno, | |
a8e547c1 | 5549 | struct rule_collection *rules) |
15aaf599 | 5550 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
5551 | { |
5552 | const struct ofproto *ofproto = ofconn_get_ofproto(m->ofconn); | |
2b07c8b1 | 5553 | const struct oftable *table; |
81a76618 | 5554 | struct cls_rule target; |
2b07c8b1 | 5555 | |
bd53aa17 | 5556 | cls_rule_init_from_minimatch(&target, &m->match, 0); |
2b07c8b1 | 5557 | FOR_EACH_MATCHING_TABLE (table, m->table_id, ofproto) { |
2b07c8b1 BP |
5558 | struct rule *rule; |
5559 | ||
bd53aa17 | 5560 | CLS_FOR_EACH_TARGET (rule, cr, &table->cls, &target, CLS_MAX_VERSION) { |
2b07c8b1 BP |
5561 | ofproto_collect_ofmonitor_refresh_rule(m, rule, seqno, rules); |
5562 | } | |
5563 | } | |
48d28ac1 | 5564 | cls_rule_destroy(&target); |
2b07c8b1 BP |
5565 | } |
5566 | ||
5567 | static void | |
5568 | ofproto_collect_ofmonitor_initial_rules(struct ofmonitor *m, | |
a8e547c1 | 5569 | struct rule_collection *rules) |
15aaf599 | 5570 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
5571 | { |
5572 | if (m->flags & NXFMF_INITIAL) { | |
5573 | ofproto_collect_ofmonitor_refresh_rules(m, 0, rules); | |
5574 | } | |
5575 | } | |
5576 | ||
5577 | void | |
5578 | ofmonitor_collect_resume_rules(struct ofmonitor *m, | |
a8e547c1 | 5579 | uint64_t seqno, struct rule_collection *rules) |
15aaf599 | 5580 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
5581 | { |
5582 | ofproto_collect_ofmonitor_refresh_rules(m, seqno, rules); | |
5583 | } | |
5584 | ||
7b900689 SH |
5585 | static enum ofperr |
5586 | flow_monitor_delete(struct ofconn *ofconn, uint32_t id) | |
5587 | OVS_REQUIRES(ofproto_mutex) | |
5588 | { | |
5589 | struct ofmonitor *m; | |
5590 | enum ofperr error; | |
5591 | ||
5592 | m = ofmonitor_lookup(ofconn, id); | |
5593 | if (m) { | |
5594 | ofmonitor_destroy(m); | |
5595 | error = 0; | |
5596 | } else { | |
5597 | error = OFPERR_OFPMOFC_UNKNOWN_MONITOR; | |
5598 | } | |
5599 | ||
5600 | return error; | |
5601 | } | |
5602 | ||
2b07c8b1 | 5603 | static enum ofperr |
982697a4 | 5604 | handle_flow_monitor_request(struct ofconn *ofconn, const struct ofp_header *oh) |
15aaf599 | 5605 | OVS_EXCLUDED(ofproto_mutex) |
2b07c8b1 BP |
5606 | { |
5607 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
5608 | struct ofmonitor **monitors; | |
5609 | size_t n_monitors, allocated_monitors; | |
a8e547c1 | 5610 | struct rule_collection rules; |
ca6ba700 | 5611 | struct ovs_list replies; |
2b07c8b1 | 5612 | enum ofperr error; |
2b07c8b1 BP |
5613 | struct ofpbuf b; |
5614 | size_t i; | |
5615 | ||
982697a4 | 5616 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
2b07c8b1 BP |
5617 | monitors = NULL; |
5618 | n_monitors = allocated_monitors = 0; | |
15aaf599 BP |
5619 | |
5620 | ovs_mutex_lock(&ofproto_mutex); | |
2b07c8b1 BP |
5621 | for (;;) { |
5622 | struct ofputil_flow_monitor_request request; | |
5623 | struct ofmonitor *m; | |
5624 | int retval; | |
5625 | ||
5626 | retval = ofputil_decode_flow_monitor_request(&request, &b); | |
5627 | if (retval == EOF) { | |
5628 | break; | |
5629 | } else if (retval) { | |
5630 | error = retval; | |
5631 | goto error; | |
5632 | } | |
5633 | ||
5634 | if (request.table_id != 0xff | |
5635 | && request.table_id >= ofproto->n_tables) { | |
5636 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
5637 | goto error; | |
5638 | } | |
5639 | ||
5640 | error = ofmonitor_create(&request, ofconn, &m); | |
5641 | if (error) { | |
5642 | goto error; | |
5643 | } | |
5644 | ||
5645 | if (n_monitors >= allocated_monitors) { | |
5646 | monitors = x2nrealloc(monitors, &allocated_monitors, | |
5647 | sizeof *monitors); | |
5648 | } | |
5649 | monitors[n_monitors++] = m; | |
5650 | } | |
5651 | ||
a8e547c1 | 5652 | rule_collection_init(&rules); |
2b07c8b1 BP |
5653 | for (i = 0; i < n_monitors; i++) { |
5654 | ofproto_collect_ofmonitor_initial_rules(monitors[i], &rules); | |
5655 | } | |
5656 | ||
982697a4 | 5657 | ofpmp_init(&replies, oh); |
2b07c8b1 | 5658 | ofmonitor_compose_refresh_updates(&rules, &replies); |
15aaf599 BP |
5659 | ovs_mutex_unlock(&ofproto_mutex); |
5660 | ||
a8e547c1 BP |
5661 | rule_collection_destroy(&rules); |
5662 | ||
2b07c8b1 | 5663 | ofconn_send_replies(ofconn, &replies); |
2b07c8b1 BP |
5664 | free(monitors); |
5665 | ||
5666 | return 0; | |
5667 | ||
5668 | error: | |
5669 | for (i = 0; i < n_monitors; i++) { | |
5670 | ofmonitor_destroy(monitors[i]); | |
5671 | } | |
5672 | free(monitors); | |
4cd1bc9d BP |
5673 | ovs_mutex_unlock(&ofproto_mutex); |
5674 | ||
2b07c8b1 BP |
5675 | return error; |
5676 | } | |
5677 | ||
5678 | static enum ofperr | |
5679 | handle_flow_monitor_cancel(struct ofconn *ofconn, const struct ofp_header *oh) | |
15aaf599 | 5680 | OVS_EXCLUDED(ofproto_mutex) |
2b07c8b1 | 5681 | { |
15aaf599 | 5682 | enum ofperr error; |
2b07c8b1 BP |
5683 | uint32_t id; |
5684 | ||
5685 | id = ofputil_decode_flow_monitor_cancel(oh); | |
15aaf599 BP |
5686 | |
5687 | ovs_mutex_lock(&ofproto_mutex); | |
7b900689 | 5688 | error = flow_monitor_delete(ofconn, id); |
15aaf599 | 5689 | ovs_mutex_unlock(&ofproto_mutex); |
2b07c8b1 | 5690 | |
15aaf599 | 5691 | return error; |
2b07c8b1 BP |
5692 | } |
5693 | ||
9cae45dc JR |
5694 | /* Meters implementation. |
5695 | * | |
5696 | * Meter table entry, indexed by the OpenFlow meter_id. | |
9cae45dc JR |
5697 | * 'created' is used to compute the duration for meter stats. |
5698 | * 'list rules' is needed so that we can delete the dependent rules when the | |
5699 | * meter table entry is deleted. | |
5700 | * 'provider_meter_id' is for the provider's private use. | |
5701 | */ | |
5702 | struct meter { | |
5703 | long long int created; /* Time created. */ | |
ca6ba700 | 5704 | struct ovs_list rules; /* List of "struct rule_dpif"s. */ |
9cae45dc JR |
5705 | ofproto_meter_id provider_meter_id; |
5706 | uint16_t flags; /* Meter flags. */ | |
5707 | uint16_t n_bands; /* Number of meter bands. */ | |
5708 | struct ofputil_meter_band *bands; | |
5709 | }; | |
5710 | ||
5711 | /* | |
5712 | * This is used in instruction validation at flow set-up time, | |
5713 | * as flows may not use non-existing meters. | |
9cae45dc JR |
5714 | * Return value of UINT32_MAX signifies an invalid meter. |
5715 | */ | |
65efd2ab JR |
5716 | static uint32_t |
5717 | get_provider_meter_id(const struct ofproto *ofproto, uint32_t of_meter_id) | |
9cae45dc JR |
5718 | { |
5719 | if (of_meter_id && of_meter_id <= ofproto->meter_features.max_meters) { | |
5720 | const struct meter *meter = ofproto->meters[of_meter_id]; | |
5721 | if (meter) { | |
5722 | return meter->provider_meter_id.uint32; | |
5723 | } | |
5724 | } | |
5725 | return UINT32_MAX; | |
5726 | } | |
5727 | ||
062fea06 BP |
5728 | /* Finds the meter invoked by 'rule''s actions and adds 'rule' to the meter's |
5729 | * list of rules. */ | |
5730 | static void | |
5731 | meter_insert_rule(struct rule *rule) | |
5732 | { | |
5733 | const struct rule_actions *a = rule_get_actions(rule); | |
5734 | uint32_t meter_id = ofpacts_get_meter(a->ofpacts, a->ofpacts_len); | |
5735 | struct meter *meter = rule->ofproto->meters[meter_id]; | |
5736 | ||
5737 | list_insert(&meter->rules, &rule->meter_list_node); | |
5738 | } | |
5739 | ||
9cae45dc JR |
5740 | static void |
5741 | meter_update(struct meter *meter, const struct ofputil_meter_config *config) | |
5742 | { | |
5743 | free(meter->bands); | |
5744 | ||
5745 | meter->flags = config->flags; | |
5746 | meter->n_bands = config->n_bands; | |
5747 | meter->bands = xmemdup(config->bands, | |
5748 | config->n_bands * sizeof *meter->bands); | |
5749 | } | |
5750 | ||
5751 | static struct meter * | |
5752 | meter_create(const struct ofputil_meter_config *config, | |
5753 | ofproto_meter_id provider_meter_id) | |
5754 | { | |
5755 | struct meter *meter; | |
5756 | ||
5757 | meter = xzalloc(sizeof *meter); | |
5758 | meter->provider_meter_id = provider_meter_id; | |
5759 | meter->created = time_msec(); | |
5760 | list_init(&meter->rules); | |
5761 | ||
5762 | meter_update(meter, config); | |
5763 | ||
5764 | return meter; | |
5765 | } | |
5766 | ||
6b3f7f02 JR |
5767 | static void |
5768 | meter_delete(struct ofproto *ofproto, uint32_t first, uint32_t last) | |
15aaf599 | 5769 | OVS_REQUIRES(ofproto_mutex) |
6b3f7f02 JR |
5770 | { |
5771 | uint32_t mid; | |
5772 | for (mid = first; mid <= last; ++mid) { | |
5773 | struct meter *meter = ofproto->meters[mid]; | |
5774 | if (meter) { | |
5775 | ofproto->meters[mid] = NULL; | |
5776 | ofproto->ofproto_class->meter_del(ofproto, | |
5777 | meter->provider_meter_id); | |
5778 | free(meter->bands); | |
5779 | free(meter); | |
5780 | } | |
5781 | } | |
5782 | } | |
5783 | ||
9cae45dc JR |
5784 | static enum ofperr |
5785 | handle_add_meter(struct ofproto *ofproto, struct ofputil_meter_mod *mm) | |
5786 | { | |
5787 | ofproto_meter_id provider_meter_id = { UINT32_MAX }; | |
5788 | struct meter **meterp = &ofproto->meters[mm->meter.meter_id]; | |
5789 | enum ofperr error; | |
5790 | ||
5791 | if (*meterp) { | |
5792 | return OFPERR_OFPMMFC_METER_EXISTS; | |
5793 | } | |
5794 | ||
5795 | error = ofproto->ofproto_class->meter_set(ofproto, &provider_meter_id, | |
5796 | &mm->meter); | |
5797 | if (!error) { | |
5798 | ovs_assert(provider_meter_id.uint32 != UINT32_MAX); | |
5799 | *meterp = meter_create(&mm->meter, provider_meter_id); | |
5800 | } | |
f0f8c6c2 | 5801 | return error; |
9cae45dc JR |
5802 | } |
5803 | ||
5804 | static enum ofperr | |
5805 | handle_modify_meter(struct ofproto *ofproto, struct ofputil_meter_mod *mm) | |
5806 | { | |
5807 | struct meter *meter = ofproto->meters[mm->meter.meter_id]; | |
5808 | enum ofperr error; | |
e555eb7c | 5809 | uint32_t provider_meter_id; |
9cae45dc JR |
5810 | |
5811 | if (!meter) { | |
5812 | return OFPERR_OFPMMFC_UNKNOWN_METER; | |
5813 | } | |
5814 | ||
e555eb7c | 5815 | provider_meter_id = meter->provider_meter_id.uint32; |
9cae45dc JR |
5816 | error = ofproto->ofproto_class->meter_set(ofproto, |
5817 | &meter->provider_meter_id, | |
5818 | &mm->meter); | |
e555eb7c | 5819 | ovs_assert(meter->provider_meter_id.uint32 == provider_meter_id); |
9cae45dc JR |
5820 | if (!error) { |
5821 | meter_update(meter, &mm->meter); | |
5822 | } | |
5823 | return error; | |
5824 | } | |
5825 | ||
5826 | static enum ofperr | |
baae3d02 | 5827 | handle_delete_meter(struct ofconn *ofconn, struct ofputil_meter_mod *mm) |
15aaf599 | 5828 | OVS_EXCLUDED(ofproto_mutex) |
9cae45dc JR |
5829 | { |
5830 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
5831 | uint32_t meter_id = mm->meter.meter_id; | |
a8e547c1 BP |
5832 | struct rule_collection rules; |
5833 | enum ofperr error = 0; | |
9cae45dc | 5834 | uint32_t first, last; |
9cae45dc JR |
5835 | |
5836 | if (meter_id == OFPM13_ALL) { | |
5837 | first = 1; | |
5838 | last = ofproto->meter_features.max_meters; | |
5839 | } else { | |
5840 | if (!meter_id || meter_id > ofproto->meter_features.max_meters) { | |
5841 | return 0; | |
5842 | } | |
5843 | first = last = meter_id; | |
5844 | } | |
5845 | ||
5846 | /* First delete the rules that use this meter. If any of those rules are | |
5847 | * currently being modified, postpone the whole operation until later. */ | |
a8e547c1 | 5848 | rule_collection_init(&rules); |
15aaf599 | 5849 | ovs_mutex_lock(&ofproto_mutex); |
9cae45dc JR |
5850 | for (meter_id = first; meter_id <= last; ++meter_id) { |
5851 | struct meter *meter = ofproto->meters[meter_id]; | |
5852 | if (meter && !list_is_empty(&meter->rules)) { | |
5853 | struct rule *rule; | |
5854 | ||
5855 | LIST_FOR_EACH (rule, meter_list_node, &meter->rules) { | |
a8e547c1 | 5856 | rule_collection_add(&rules, rule); |
9cae45dc JR |
5857 | } |
5858 | } | |
5859 | } | |
802f84ff | 5860 | delete_flows__(&rules, OFPRR_METER_DELETE, NULL); |
9cae45dc JR |
5861 | |
5862 | /* Delete the meters. */ | |
6b3f7f02 | 5863 | meter_delete(ofproto, first, last); |
9cae45dc | 5864 | |
15aaf599 | 5865 | ovs_mutex_unlock(&ofproto_mutex); |
a8e547c1 BP |
5866 | |
5867 | return error; | |
9cae45dc JR |
5868 | } |
5869 | ||
5870 | static enum ofperr | |
5871 | handle_meter_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
5872 | { | |
5873 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
5874 | struct ofputil_meter_mod mm; | |
5875 | uint64_t bands_stub[256 / 8]; | |
5876 | struct ofpbuf bands; | |
5877 | uint32_t meter_id; | |
5878 | enum ofperr error; | |
5879 | ||
5880 | error = reject_slave_controller(ofconn); | |
5881 | if (error) { | |
5882 | return error; | |
5883 | } | |
5884 | ||
5885 | ofpbuf_use_stub(&bands, bands_stub, sizeof bands_stub); | |
5886 | ||
5887 | error = ofputil_decode_meter_mod(oh, &mm, &bands); | |
5888 | if (error) { | |
5889 | goto exit_free_bands; | |
5890 | } | |
5891 | ||
5892 | meter_id = mm.meter.meter_id; | |
5893 | ||
5894 | if (mm.command != OFPMC13_DELETE) { | |
5895 | /* Fails also when meters are not implemented by the provider. */ | |
b31e8700 | 5896 | if (meter_id == 0 || meter_id > OFPM13_MAX) { |
9cae45dc JR |
5897 | error = OFPERR_OFPMMFC_INVALID_METER; |
5898 | goto exit_free_bands; | |
b31e8700 JR |
5899 | } else if (meter_id > ofproto->meter_features.max_meters) { |
5900 | error = OFPERR_OFPMMFC_OUT_OF_METERS; | |
5901 | goto exit_free_bands; | |
9cae45dc JR |
5902 | } |
5903 | if (mm.meter.n_bands > ofproto->meter_features.max_bands) { | |
5904 | error = OFPERR_OFPMMFC_OUT_OF_BANDS; | |
5905 | goto exit_free_bands; | |
5906 | } | |
5907 | } | |
5908 | ||
5909 | switch (mm.command) { | |
5910 | case OFPMC13_ADD: | |
5911 | error = handle_add_meter(ofproto, &mm); | |
5912 | break; | |
5913 | ||
5914 | case OFPMC13_MODIFY: | |
5915 | error = handle_modify_meter(ofproto, &mm); | |
5916 | break; | |
5917 | ||
5918 | case OFPMC13_DELETE: | |
baae3d02 | 5919 | error = handle_delete_meter(ofconn, &mm); |
9cae45dc JR |
5920 | break; |
5921 | ||
5922 | default: | |
5923 | error = OFPERR_OFPMMFC_BAD_COMMAND; | |
5924 | break; | |
5925 | } | |
5926 | ||
3c35db62 NR |
5927 | if (!error) { |
5928 | struct ofputil_requestforward rf; | |
5929 | rf.xid = oh->xid; | |
5930 | rf.reason = OFPRFR_METER_MOD; | |
5931 | rf.meter_mod = &mm; | |
5932 | connmgr_send_requestforward(ofproto->connmgr, ofconn, &rf); | |
5933 | } | |
5934 | ||
9cae45dc JR |
5935 | exit_free_bands: |
5936 | ofpbuf_uninit(&bands); | |
5937 | return error; | |
5938 | } | |
5939 | ||
5940 | static enum ofperr | |
5941 | handle_meter_features_request(struct ofconn *ofconn, | |
5942 | const struct ofp_header *request) | |
5943 | { | |
5944 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
5945 | struct ofputil_meter_features features; | |
5946 | struct ofpbuf *b; | |
5947 | ||
5948 | if (ofproto->ofproto_class->meter_get_features) { | |
5949 | ofproto->ofproto_class->meter_get_features(ofproto, &features); | |
5950 | } else { | |
5951 | memset(&features, 0, sizeof features); | |
5952 | } | |
5953 | b = ofputil_encode_meter_features_reply(&features, request); | |
5954 | ||
5955 | ofconn_send_reply(ofconn, b); | |
5956 | return 0; | |
5957 | } | |
5958 | ||
5959 | static enum ofperr | |
5960 | handle_meter_request(struct ofconn *ofconn, const struct ofp_header *request, | |
5961 | enum ofptype type) | |
5962 | { | |
5963 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
ca6ba700 | 5964 | struct ovs_list replies; |
9cae45dc JR |
5965 | uint64_t bands_stub[256 / 8]; |
5966 | struct ofpbuf bands; | |
5967 | uint32_t meter_id, first, last; | |
5968 | ||
5969 | ofputil_decode_meter_request(request, &meter_id); | |
5970 | ||
5971 | if (meter_id == OFPM13_ALL) { | |
5972 | first = 1; | |
5973 | last = ofproto->meter_features.max_meters; | |
5974 | } else { | |
5975 | if (!meter_id || meter_id > ofproto->meter_features.max_meters || | |
5976 | !ofproto->meters[meter_id]) { | |
5977 | return OFPERR_OFPMMFC_UNKNOWN_METER; | |
5978 | } | |
5979 | first = last = meter_id; | |
5980 | } | |
5981 | ||
5982 | ofpbuf_use_stub(&bands, bands_stub, sizeof bands_stub); | |
5983 | ofpmp_init(&replies, request); | |
5984 | ||
5985 | for (meter_id = first; meter_id <= last; ++meter_id) { | |
5986 | struct meter *meter = ofproto->meters[meter_id]; | |
5987 | if (!meter) { | |
5988 | continue; /* Skip non-existing meters. */ | |
5989 | } | |
261bd854 | 5990 | if (type == OFPTYPE_METER_STATS_REQUEST) { |
9cae45dc JR |
5991 | struct ofputil_meter_stats stats; |
5992 | ||
5993 | stats.meter_id = meter_id; | |
5994 | ||
5995 | /* Provider sets the packet and byte counts, we do the rest. */ | |
5996 | stats.flow_count = list_size(&meter->rules); | |
5997 | calc_duration(meter->created, time_msec(), | |
5998 | &stats.duration_sec, &stats.duration_nsec); | |
5999 | stats.n_bands = meter->n_bands; | |
6000 | ofpbuf_clear(&bands); | |
6001 | stats.bands | |
6002 | = ofpbuf_put_uninit(&bands, | |
6003 | meter->n_bands * sizeof *stats.bands); | |
6004 | ||
6005 | if (!ofproto->ofproto_class->meter_get(ofproto, | |
6006 | meter->provider_meter_id, | |
6007 | &stats)) { | |
6008 | ofputil_append_meter_stats(&replies, &stats); | |
6009 | } | |
6010 | } else { /* type == OFPTYPE_METER_CONFIG_REQUEST */ | |
6011 | struct ofputil_meter_config config; | |
6012 | ||
6013 | config.meter_id = meter_id; | |
6014 | config.flags = meter->flags; | |
6015 | config.n_bands = meter->n_bands; | |
6016 | config.bands = meter->bands; | |
6017 | ofputil_append_meter_config(&replies, &config); | |
6018 | } | |
6019 | } | |
6020 | ||
6021 | ofconn_send_replies(ofconn, &replies); | |
6022 | ofpbuf_uninit(&bands); | |
6023 | return 0; | |
6024 | } | |
6025 | ||
3fc3b679 AZ |
6026 | static bool |
6027 | ofproto_group_lookup__(const struct ofproto *ofproto, uint32_t group_id, | |
6028 | struct ofgroup **group) | |
6029 | OVS_REQ_RDLOCK(ofproto->groups_rwlock) | |
7395c052 | 6030 | { |
7395c052 NZ |
6031 | HMAP_FOR_EACH_IN_BUCKET (*group, hmap_node, |
6032 | hash_int(group_id, 0), &ofproto->groups) { | |
6033 | if ((*group)->group_id == group_id) { | |
7395c052 NZ |
6034 | return true; |
6035 | } | |
6036 | } | |
3fc3b679 | 6037 | |
7395c052 NZ |
6038 | return false; |
6039 | } | |
6040 | ||
3fc3b679 AZ |
6041 | /* If the group exists, this function increments the groups's reference count. |
6042 | * | |
6043 | * Make sure to call ofproto_group_unref() after no longer needing to maintain | |
6044 | * a reference to the group. */ | |
6045 | bool | |
6046 | ofproto_group_lookup(const struct ofproto *ofproto, uint32_t group_id, | |
6047 | struct ofgroup **group) | |
7395c052 | 6048 | { |
3fc3b679 AZ |
6049 | bool found; |
6050 | ||
6051 | ovs_rwlock_rdlock(&ofproto->groups_rwlock); | |
6052 | found = ofproto_group_lookup__(ofproto, group_id, group); | |
6053 | if (found) { | |
6054 | ofproto_group_ref(*group); | |
7395c052 | 6055 | } |
3fc3b679 AZ |
6056 | ovs_rwlock_unlock(&ofproto->groups_rwlock); |
6057 | return found; | |
7395c052 NZ |
6058 | } |
6059 | ||
6060 | static bool | |
7e9f8266 | 6061 | ofproto_group_exists__(const struct ofproto *ofproto, uint32_t group_id) |
7395c052 NZ |
6062 | OVS_REQ_RDLOCK(ofproto->groups_rwlock) |
6063 | { | |
6064 | struct ofgroup *grp; | |
6065 | ||
6066 | HMAP_FOR_EACH_IN_BUCKET (grp, hmap_node, | |
6067 | hash_int(group_id, 0), &ofproto->groups) { | |
6068 | if (grp->group_id == group_id) { | |
6069 | return true; | |
6070 | } | |
6071 | } | |
6072 | return false; | |
6073 | } | |
6074 | ||
7e9f8266 BP |
6075 | static bool |
6076 | ofproto_group_exists(const struct ofproto *ofproto, uint32_t group_id) | |
6077 | OVS_EXCLUDED(ofproto->groups_rwlock) | |
6078 | { | |
6079 | bool exists; | |
6080 | ||
6081 | ovs_rwlock_rdlock(&ofproto->groups_rwlock); | |
6082 | exists = ofproto_group_exists__(ofproto, group_id); | |
6083 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
6084 | ||
6085 | return exists; | |
6086 | } | |
6087 | ||
732feb93 SH |
6088 | static uint32_t |
6089 | group_get_ref_count(struct ofgroup *group) | |
6090 | OVS_EXCLUDED(ofproto_mutex) | |
6091 | { | |
eaf004bd | 6092 | struct ofproto *ofproto = CONST_CAST(struct ofproto *, group->ofproto); |
732feb93 SH |
6093 | struct rule_criteria criteria; |
6094 | struct rule_collection rules; | |
6095 | struct match match; | |
6096 | enum ofperr error; | |
6097 | uint32_t count; | |
6098 | ||
6099 | match_init_catchall(&match); | |
2b7b1427 JR |
6100 | rule_criteria_init(&criteria, 0xff, &match, 0, CLS_MAX_VERSION, htonll(0), |
6101 | htonll(0), OFPP_ANY, group->group_id); | |
732feb93 SH |
6102 | ovs_mutex_lock(&ofproto_mutex); |
6103 | error = collect_rules_loose(ofproto, &criteria, &rules); | |
6104 | ovs_mutex_unlock(&ofproto_mutex); | |
6105 | rule_criteria_destroy(&criteria); | |
6106 | ||
6107 | count = !error && rules.n < UINT32_MAX ? rules.n : UINT32_MAX; | |
6108 | ||
6109 | rule_collection_destroy(&rules); | |
6110 | return count; | |
6111 | } | |
6112 | ||
7395c052 | 6113 | static void |
ca6ba700 | 6114 | append_group_stats(struct ofgroup *group, struct ovs_list *replies) |
7395c052 NZ |
6115 | { |
6116 | struct ofputil_group_stats ogs; | |
eaf004bd | 6117 | const struct ofproto *ofproto = group->ofproto; |
7395c052 NZ |
6118 | long long int now = time_msec(); |
6119 | int error; | |
6120 | ||
646b2a9c SH |
6121 | ogs.bucket_stats = xmalloc(group->n_buckets * sizeof *ogs.bucket_stats); |
6122 | ||
732feb93 SH |
6123 | /* Provider sets the packet and byte counts, we do the rest. */ |
6124 | ogs.ref_count = group_get_ref_count(group); | |
6125 | ogs.n_buckets = group->n_buckets; | |
6126 | ||
7395c052 NZ |
6127 | error = (ofproto->ofproto_class->group_get_stats |
6128 | ? ofproto->ofproto_class->group_get_stats(group, &ogs) | |
6129 | : EOPNOTSUPP); | |
6130 | if (error) { | |
7395c052 NZ |
6131 | ogs.packet_count = UINT64_MAX; |
6132 | ogs.byte_count = UINT64_MAX; | |
7395c052 NZ |
6133 | memset(ogs.bucket_stats, 0xff, |
6134 | ogs.n_buckets * sizeof *ogs.bucket_stats); | |
6135 | } | |
6136 | ||
6137 | ogs.group_id = group->group_id; | |
6138 | calc_duration(group->created, now, &ogs.duration_sec, &ogs.duration_nsec); | |
6139 | ||
6140 | ofputil_append_group_stats(replies, &ogs); | |
646b2a9c SH |
6141 | |
6142 | free(ogs.bucket_stats); | |
7395c052 NZ |
6143 | } |
6144 | ||
19187a71 BP |
6145 | static void |
6146 | handle_group_request(struct ofconn *ofconn, | |
6147 | const struct ofp_header *request, uint32_t group_id, | |
ca6ba700 | 6148 | void (*cb)(struct ofgroup *, struct ovs_list *replies)) |
7395c052 NZ |
6149 | { |
6150 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
7395c052 | 6151 | struct ofgroup *group; |
ca6ba700 | 6152 | struct ovs_list replies; |
7395c052 NZ |
6153 | |
6154 | ofpmp_init(&replies, request); | |
7395c052 NZ |
6155 | if (group_id == OFPG_ALL) { |
6156 | ovs_rwlock_rdlock(&ofproto->groups_rwlock); | |
6157 | HMAP_FOR_EACH (group, hmap_node, &ofproto->groups) { | |
19187a71 | 6158 | cb(group, &replies); |
7395c052 NZ |
6159 | } |
6160 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
6161 | } else { | |
6162 | if (ofproto_group_lookup(ofproto, group_id, &group)) { | |
19187a71 | 6163 | cb(group, &replies); |
809c7548 | 6164 | ofproto_group_unref(group); |
7395c052 NZ |
6165 | } |
6166 | } | |
7395c052 | 6167 | ofconn_send_replies(ofconn, &replies); |
7395c052 NZ |
6168 | } |
6169 | ||
6170 | static enum ofperr | |
19187a71 BP |
6171 | handle_group_stats_request(struct ofconn *ofconn, |
6172 | const struct ofp_header *request) | |
7395c052 | 6173 | { |
19187a71 BP |
6174 | uint32_t group_id; |
6175 | enum ofperr error; | |
7395c052 | 6176 | |
19187a71 BP |
6177 | error = ofputil_decode_group_stats_request(request, &group_id); |
6178 | if (error) { | |
6179 | return error; | |
7395c052 | 6180 | } |
7395c052 | 6181 | |
19187a71 BP |
6182 | handle_group_request(ofconn, request, group_id, append_group_stats); |
6183 | return 0; | |
6184 | } | |
6185 | ||
6186 | static void | |
ca6ba700 | 6187 | append_group_desc(struct ofgroup *group, struct ovs_list *replies) |
19187a71 BP |
6188 | { |
6189 | struct ofputil_group_desc gds; | |
7395c052 | 6190 | |
19187a71 BP |
6191 | gds.group_id = group->group_id; |
6192 | gds.type = group->type; | |
53eb84a5 SH |
6193 | gds.props = group->props; |
6194 | ||
19187a71 BP |
6195 | ofputil_append_group_desc_reply(&gds, &group->buckets, replies); |
6196 | } | |
6197 | ||
6198 | static enum ofperr | |
6199 | handle_group_desc_stats_request(struct ofconn *ofconn, | |
6200 | const struct ofp_header *request) | |
6201 | { | |
6202 | handle_group_request(ofconn, request, | |
6203 | ofputil_decode_group_desc_request(request), | |
6204 | append_group_desc); | |
7395c052 NZ |
6205 | return 0; |
6206 | } | |
6207 | ||
6208 | static enum ofperr | |
6209 | handle_group_features_stats_request(struct ofconn *ofconn, | |
6210 | const struct ofp_header *request) | |
6211 | { | |
6212 | struct ofproto *p = ofconn_get_ofproto(ofconn); | |
6213 | struct ofpbuf *msg; | |
6214 | ||
6215 | msg = ofputil_encode_group_features_reply(&p->ogf, request); | |
6216 | if (msg) { | |
6217 | ofconn_send_reply(ofconn, msg); | |
6218 | } | |
6219 | ||
6220 | return 0; | |
6221 | } | |
6222 | ||
56085be5 | 6223 | static void |
e016fb63 BP |
6224 | put_queue_get_config_reply(struct ofport *port, uint32_t queue, |
6225 | struct ovs_list *replies) | |
e8f9a7bb | 6226 | { |
e016fb63 | 6227 | struct ofputil_queue_config qc; |
e8f9a7bb | 6228 | |
e016fb63 BP |
6229 | /* None of the existing queues have compatible properties, so we hard-code |
6230 | * omitting min_rate and max_rate. */ | |
6231 | qc.port = port->ofp_port; | |
6232 | qc.queue = queue; | |
6233 | qc.min_rate = UINT16_MAX; | |
6234 | qc.max_rate = UINT16_MAX; | |
6235 | ofputil_append_queue_get_config_reply(&qc, replies); | |
6236 | } | |
e8f9a7bb | 6237 | |
e016fb63 BP |
6238 | static int |
6239 | handle_queue_get_config_request_for_port(struct ofport *port, uint32_t queue, | |
6240 | struct ovs_list *replies) | |
6241 | { | |
6242 | struct smap details = SMAP_INITIALIZER(&details); | |
6243 | if (queue != OFPQ_ALL) { | |
6244 | int error = netdev_get_queue(port->netdev, queue, &details); | |
6245 | switch (error) { | |
6246 | case 0: | |
6247 | put_queue_get_config_reply(port, queue, replies); | |
6248 | break; | |
6249 | case EOPNOTSUPP: | |
6250 | case EINVAL: | |
6251 | return OFPERR_OFPQOFC_BAD_QUEUE; | |
6252 | default: | |
6253 | return OFPERR_NXQOFC_QUEUE_ERROR; | |
6254 | } | |
6255 | } else { | |
6256 | struct netdev_queue_dump queue_dump; | |
6257 | uint32_t queue_id; | |
6258 | ||
6259 | NETDEV_QUEUE_FOR_EACH (&queue_id, &details, &queue_dump, | |
6260 | port->netdev) { | |
6261 | put_queue_get_config_reply(port, queue_id, replies); | |
6262 | } | |
6263 | } | |
6264 | smap_destroy(&details); | |
6265 | return 0; | |
56085be5 BP |
6266 | } |
6267 | ||
6268 | static enum ofperr | |
6269 | handle_queue_get_config_request(struct ofconn *ofconn, | |
6270 | const struct ofp_header *oh) | |
6271 | { | |
e016fb63 BP |
6272 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
6273 | struct ovs_list replies; | |
6274 | struct ofport *port; | |
6275 | ofp_port_t req_port; | |
6276 | uint32_t req_queue; | |
6277 | enum ofperr error; | |
6278 | ||
6279 | error = ofputil_decode_queue_get_config_request(oh, &req_port, &req_queue); | |
6280 | if (error) { | |
6281 | return error; | |
6282 | } | |
6283 | ||
6284 | ofputil_start_queue_get_config_reply(oh, &replies); | |
6285 | if (req_port == OFPP_ANY) { | |
6286 | error = OFPERR_OFPQOFC_BAD_QUEUE; | |
6287 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { | |
6288 | if (!handle_queue_get_config_request_for_port(port, req_queue, | |
6289 | &replies)) { | |
6290 | error = 0; | |
6291 | } | |
6292 | } | |
6293 | } else { | |
6294 | port = ofproto_get_port(ofproto, req_port); | |
6295 | error = (port | |
6296 | ? handle_queue_get_config_request_for_port(port, req_queue, | |
6297 | &replies) | |
6298 | : OFPERR_OFPQOFC_BAD_PORT); | |
6299 | } | |
6300 | if (!error) { | |
6301 | ofconn_send_replies(ofconn, &replies); | |
6302 | } else { | |
6303 | ofpbuf_list_delete(&replies); | |
6304 | } | |
6305 | ||
6306 | return error; | |
e8f9a7bb VG |
6307 | } |
6308 | ||
809c7548 | 6309 | static enum ofperr |
63eded98 | 6310 | init_group(struct ofproto *ofproto, const struct ofputil_group_mod *gm, |
809c7548 RW |
6311 | struct ofgroup **ofgroup) |
6312 | { | |
6313 | enum ofperr error; | |
eaf004bd | 6314 | const long long int now = time_msec(); |
809c7548 RW |
6315 | |
6316 | if (gm->group_id > OFPG_MAX) { | |
6317 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
6318 | } | |
6319 | if (gm->type > OFPGT11_FF) { | |
6320 | return OFPERR_OFPGMFC_BAD_TYPE; | |
6321 | } | |
6322 | ||
6323 | *ofgroup = ofproto->ofproto_class->group_alloc(); | |
6324 | if (!*ofgroup) { | |
6325 | VLOG_WARN_RL(&rl, "%s: failed to allocate group", ofproto->name); | |
6326 | return OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
6327 | } | |
6328 | ||
eaf004bd AZ |
6329 | (*ofgroup)->ofproto = ofproto; |
6330 | *CONST_CAST(uint32_t *, &((*ofgroup)->group_id)) = gm->group_id; | |
6331 | *CONST_CAST(enum ofp11_group_type *, &(*ofgroup)->type) = gm->type; | |
6332 | *CONST_CAST(long long int *, &((*ofgroup)->created)) = now; | |
6333 | *CONST_CAST(long long int *, &((*ofgroup)->modified)) = now; | |
809c7548 RW |
6334 | ovs_refcount_init(&(*ofgroup)->ref_count); |
6335 | ||
63eded98 BP |
6336 | list_init(&(*ofgroup)->buckets); |
6337 | ofputil_bucket_clone_list(&(*ofgroup)->buckets, &gm->buckets, NULL); | |
6338 | ||
eaf004bd AZ |
6339 | *CONST_CAST(uint32_t *, &(*ofgroup)->n_buckets) = |
6340 | list_size(&(*ofgroup)->buckets); | |
809c7548 | 6341 | |
bc65c25a SH |
6342 | memcpy(CONST_CAST(struct ofputil_group_props *, &(*ofgroup)->props), |
6343 | &gm->props, sizeof (struct ofputil_group_props)); | |
6344 | ||
809c7548 RW |
6345 | /* Construct called BEFORE any locks are held. */ |
6346 | error = ofproto->ofproto_class->group_construct(*ofgroup); | |
6347 | if (error) { | |
6348 | ofputil_bucket_list_destroy(&(*ofgroup)->buckets); | |
6349 | ofproto->ofproto_class->group_dealloc(*ofgroup); | |
6350 | } | |
6351 | return error; | |
6352 | } | |
6353 | ||
6c5b90ce BP |
6354 | /* Implements the OFPGC11_ADD operation specified by 'gm', adding a group to |
6355 | * 'ofproto''s group table. Returns 0 on success or an OpenFlow error code on | |
6356 | * failure. */ | |
7395c052 | 6357 | static enum ofperr |
63eded98 | 6358 | add_group(struct ofproto *ofproto, const struct ofputil_group_mod *gm) |
7395c052 NZ |
6359 | { |
6360 | struct ofgroup *ofgroup; | |
6361 | enum ofperr error; | |
6362 | ||
7395c052 | 6363 | /* Allocate new group and initialize it. */ |
809c7548 | 6364 | error = init_group(ofproto, gm, &ofgroup); |
7395c052 | 6365 | if (error) { |
809c7548 | 6366 | return error; |
7395c052 NZ |
6367 | } |
6368 | ||
6369 | /* We wrlock as late as possible to minimize the time we jam any other | |
6370 | * threads: No visible state changes before acquiring the lock. */ | |
6371 | ovs_rwlock_wrlock(&ofproto->groups_rwlock); | |
6372 | ||
6373 | if (ofproto->n_groups[gm->type] >= ofproto->ogf.max_groups[gm->type]) { | |
6374 | error = OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
6375 | goto unlock_out; | |
6376 | } | |
6377 | ||
7e9f8266 | 6378 | if (ofproto_group_exists__(ofproto, gm->group_id)) { |
7395c052 NZ |
6379 | error = OFPERR_OFPGMFC_GROUP_EXISTS; |
6380 | goto unlock_out; | |
6381 | } | |
6382 | ||
6383 | if (!error) { | |
6384 | /* Insert new group. */ | |
6385 | hmap_insert(&ofproto->groups, &ofgroup->hmap_node, | |
6386 | hash_int(ofgroup->group_id, 0)); | |
6387 | ofproto->n_groups[ofgroup->type]++; | |
6388 | ||
6389 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
6390 | return error; | |
6391 | } | |
6392 | ||
6393 | unlock_out: | |
6394 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
6395 | ofproto->ofproto_class->group_destruct(ofgroup); | |
7395c052 NZ |
6396 | ofputil_bucket_list_destroy(&ofgroup->buckets); |
6397 | ofproto->ofproto_class->group_dealloc(ofgroup); | |
6398 | ||
6399 | return error; | |
6400 | } | |
6401 | ||
fce4730c SH |
6402 | /* Adds all of the buckets from 'ofgroup' to 'new_ofgroup'. The buckets |
6403 | * already in 'new_ofgroup' will be placed just after the (copy of the) bucket | |
6404 | * in 'ofgroup' with bucket ID 'command_bucket_id'. Special | |
6405 | * 'command_bucket_id' values OFPG15_BUCKET_FIRST and OFPG15_BUCKET_LAST are | |
6406 | * also honored. */ | |
6407 | static enum ofperr | |
6408 | copy_buckets_for_insert_bucket(const struct ofgroup *ofgroup, | |
6409 | struct ofgroup *new_ofgroup, | |
6410 | uint32_t command_bucket_id) | |
6411 | { | |
6412 | struct ofputil_bucket *last = NULL; | |
6413 | ||
6414 | if (command_bucket_id <= OFPG15_BUCKET_MAX) { | |
6415 | /* Check here to ensure that a bucket corresponding to | |
6416 | * command_bucket_id exists in the old bucket list. | |
6417 | * | |
6418 | * The subsequent search of below of new_ofgroup covers | |
6419 | * both buckets in the old bucket list and buckets added | |
6420 | * by the insert buckets group mod message this function processes. */ | |
6421 | if (!ofputil_bucket_find(&ofgroup->buckets, command_bucket_id)) { | |
6422 | return OFPERR_OFPGMFC_UNKNOWN_BUCKET; | |
6423 | } | |
6424 | ||
6425 | if (!list_is_empty(&new_ofgroup->buckets)) { | |
6426 | last = ofputil_bucket_list_back(&new_ofgroup->buckets); | |
6427 | } | |
6428 | } | |
6429 | ||
6430 | ofputil_bucket_clone_list(&new_ofgroup->buckets, &ofgroup->buckets, NULL); | |
6431 | ||
23a31238 | 6432 | if (ofputil_bucket_check_duplicate_id(&new_ofgroup->buckets)) { |
d2873d53 | 6433 | VLOG_INFO_RL(&rl, "Duplicate bucket id"); |
fce4730c SH |
6434 | return OFPERR_OFPGMFC_BUCKET_EXISTS; |
6435 | } | |
6436 | ||
6437 | /* Rearrange list according to command_bucket_id */ | |
6438 | if (command_bucket_id == OFPG15_BUCKET_LAST) { | |
8e19e655 BP |
6439 | if (!list_is_empty(&ofgroup->buckets)) { |
6440 | struct ofputil_bucket *new_first; | |
6441 | const struct ofputil_bucket *first; | |
fce4730c | 6442 | |
8e19e655 BP |
6443 | first = ofputil_bucket_list_front(&ofgroup->buckets); |
6444 | new_first = ofputil_bucket_find(&new_ofgroup->buckets, | |
6445 | first->bucket_id); | |
fce4730c | 6446 | |
8e19e655 BP |
6447 | list_splice(new_ofgroup->buckets.next, &new_first->list_node, |
6448 | &new_ofgroup->buckets); | |
6449 | } | |
fce4730c SH |
6450 | } else if (command_bucket_id <= OFPG15_BUCKET_MAX && last) { |
6451 | struct ofputil_bucket *after; | |
6452 | ||
6453 | /* Presence of bucket is checked above so after should never be NULL */ | |
6454 | after = ofputil_bucket_find(&new_ofgroup->buckets, command_bucket_id); | |
6455 | ||
6456 | list_splice(after->list_node.next, new_ofgroup->buckets.next, | |
6457 | last->list_node.next); | |
6458 | } | |
6459 | ||
6460 | return 0; | |
6461 | } | |
6462 | ||
6463 | /* Appends all of the a copy of all the buckets from 'ofgroup' to 'new_ofgroup' | |
6464 | * with the exception of the bucket whose bucket id is 'command_bucket_id'. | |
6465 | * Special 'command_bucket_id' values OFPG15_BUCKET_FIRST, OFPG15_BUCKET_LAST | |
6466 | * and OFPG15_BUCKET_ALL are also honored. */ | |
6467 | static enum ofperr | |
6468 | copy_buckets_for_remove_bucket(const struct ofgroup *ofgroup, | |
6469 | struct ofgroup *new_ofgroup, | |
6470 | uint32_t command_bucket_id) | |
6471 | { | |
6472 | const struct ofputil_bucket *skip = NULL; | |
6473 | ||
6474 | if (command_bucket_id == OFPG15_BUCKET_ALL) { | |
6475 | return 0; | |
6476 | } | |
6477 | ||
6478 | if (command_bucket_id == OFPG15_BUCKET_FIRST) { | |
6479 | if (!list_is_empty(&ofgroup->buckets)) { | |
6480 | skip = ofputil_bucket_list_front(&ofgroup->buckets); | |
6481 | } | |
6482 | } else if (command_bucket_id == OFPG15_BUCKET_LAST) { | |
6483 | if (!list_is_empty(&ofgroup->buckets)) { | |
6484 | skip = ofputil_bucket_list_back(&ofgroup->buckets); | |
6485 | } | |
6486 | } else { | |
6487 | skip = ofputil_bucket_find(&ofgroup->buckets, command_bucket_id); | |
6488 | if (!skip) { | |
6489 | return OFPERR_OFPGMFC_UNKNOWN_BUCKET; | |
6490 | } | |
6491 | } | |
6492 | ||
6493 | ofputil_bucket_clone_list(&new_ofgroup->buckets, &ofgroup->buckets, skip); | |
6494 | ||
6495 | return 0; | |
6496 | } | |
6497 | ||
6498 | /* Implements OFPGC11_MODIFY, OFPGC15_INSERT_BUCKET and | |
6499 | * OFPGC15_REMOVE_BUCKET. Returns 0 on success or an OpenFlow error code | |
6c5b90ce | 6500 | * on failure. |
7395c052 | 6501 | * |
809c7548 RW |
6502 | * Note that the group is re-created and then replaces the old group in |
6503 | * ofproto's ofgroup hash map. Thus, the group is never altered while users of | |
6c5b90ce | 6504 | * the xlate module hold a pointer to the group. */ |
7395c052 | 6505 | static enum ofperr |
63eded98 | 6506 | modify_group(struct ofproto *ofproto, const struct ofputil_group_mod *gm) |
7395c052 | 6507 | { |
809c7548 | 6508 | struct ofgroup *ofgroup, *new_ofgroup, *retiring; |
7395c052 NZ |
6509 | enum ofperr error; |
6510 | ||
809c7548 RW |
6511 | error = init_group(ofproto, gm, &new_ofgroup); |
6512 | if (error) { | |
6513 | return error; | |
7395c052 NZ |
6514 | } |
6515 | ||
809c7548 | 6516 | retiring = new_ofgroup; |
7395c052 | 6517 | |
3fc3b679 AZ |
6518 | ovs_rwlock_wrlock(&ofproto->groups_rwlock); |
6519 | if (!ofproto_group_lookup__(ofproto, gm->group_id, &ofgroup)) { | |
7395c052 | 6520 | error = OFPERR_OFPGMFC_UNKNOWN_GROUP; |
809c7548 | 6521 | goto out; |
7395c052 | 6522 | } |
809c7548 RW |
6523 | |
6524 | /* Ofproto's group write lock is held now. */ | |
7395c052 NZ |
6525 | if (ofgroup->type != gm->type |
6526 | && ofproto->n_groups[gm->type] >= ofproto->ogf.max_groups[gm->type]) { | |
6527 | error = OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
809c7548 | 6528 | goto out; |
7395c052 NZ |
6529 | } |
6530 | ||
fce4730c SH |
6531 | /* Manipulate bucket list for bucket commands */ |
6532 | if (gm->command == OFPGC15_INSERT_BUCKET) { | |
6533 | error = copy_buckets_for_insert_bucket(ofgroup, new_ofgroup, | |
6534 | gm->command_bucket_id); | |
6535 | } else if (gm->command == OFPGC15_REMOVE_BUCKET) { | |
6536 | error = copy_buckets_for_remove_bucket(ofgroup, new_ofgroup, | |
6537 | gm->command_bucket_id); | |
6538 | } | |
6539 | if (error) { | |
6540 | goto out; | |
6541 | } | |
6542 | ||
809c7548 | 6543 | /* The group creation time does not change during modification. */ |
eaf004bd AZ |
6544 | *CONST_CAST(long long int *, &(new_ofgroup->created)) = ofgroup->created; |
6545 | *CONST_CAST(long long int *, &(new_ofgroup->modified)) = time_msec(); | |
7395c052 | 6546 | |
809c7548 RW |
6547 | error = ofproto->ofproto_class->group_modify(new_ofgroup); |
6548 | if (error) { | |
6549 | goto out; | |
6550 | } | |
7395c052 | 6551 | |
809c7548 RW |
6552 | retiring = ofgroup; |
6553 | /* Replace ofgroup in ofproto's groups hash map with new_ofgroup. */ | |
6554 | hmap_remove(&ofproto->groups, &ofgroup->hmap_node); | |
6555 | hmap_insert(&ofproto->groups, &new_ofgroup->hmap_node, | |
6556 | hash_int(new_ofgroup->group_id, 0)); | |
6557 | if (ofgroup->type != new_ofgroup->type) { | |
6558 | ofproto->n_groups[ofgroup->type]--; | |
6559 | ofproto->n_groups[new_ofgroup->type]++; | |
7395c052 NZ |
6560 | } |
6561 | ||
809c7548 RW |
6562 | out: |
6563 | ofproto_group_unref(retiring); | |
7395c052 | 6564 | ovs_rwlock_unlock(&ofproto->groups_rwlock); |
7395c052 NZ |
6565 | return error; |
6566 | } | |
6567 | ||
6568 | static void | |
6569 | delete_group__(struct ofproto *ofproto, struct ofgroup *ofgroup) | |
6570 | OVS_RELEASES(ofproto->groups_rwlock) | |
6571 | { | |
276f6518 | 6572 | struct match match; |
8be00367 | 6573 | struct ofproto_flow_mod ofm; |
276f6518 SH |
6574 | |
6575 | /* Delete all flow entries containing this group in a group action */ | |
6576 | match_init_catchall(&match); | |
8be00367 JR |
6577 | flow_mod_init(&ofm.fm, &match, 0, NULL, 0, OFPFC_DELETE); |
6578 | ofm.fm.delete_reason = OFPRR_GROUP_DELETE; | |
6579 | ofm.fm.out_group = ofgroup->group_id; | |
8b792aef | 6580 | ofm.fm.table_id = OFPTT_ALL; |
8be00367 | 6581 | handle_flow_mod__(ofproto, &ofm, NULL); |
276f6518 | 6582 | |
7395c052 NZ |
6583 | hmap_remove(&ofproto->groups, &ofgroup->hmap_node); |
6584 | /* No-one can find this group any more. */ | |
6585 | ofproto->n_groups[ofgroup->type]--; | |
6586 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
809c7548 | 6587 | ofproto_group_unref(ofgroup); |
7395c052 NZ |
6588 | } |
6589 | ||
6c5b90ce | 6590 | /* Implements OFPGC11_DELETE. */ |
7395c052 NZ |
6591 | static void |
6592 | delete_group(struct ofproto *ofproto, uint32_t group_id) | |
6593 | { | |
6594 | struct ofgroup *ofgroup; | |
6595 | ||
6596 | ovs_rwlock_wrlock(&ofproto->groups_rwlock); | |
6597 | if (group_id == OFPG_ALL) { | |
6598 | for (;;) { | |
6599 | struct hmap_node *node = hmap_first(&ofproto->groups); | |
6600 | if (!node) { | |
6601 | break; | |
6602 | } | |
6603 | ofgroup = CONTAINER_OF(node, struct ofgroup, hmap_node); | |
6604 | delete_group__(ofproto, ofgroup); | |
6605 | /* Lock for each node separately, so that we will not jam the | |
6606 | * other threads for too long time. */ | |
6607 | ovs_rwlock_wrlock(&ofproto->groups_rwlock); | |
6608 | } | |
6609 | } else { | |
6610 | HMAP_FOR_EACH_IN_BUCKET (ofgroup, hmap_node, | |
6611 | hash_int(group_id, 0), &ofproto->groups) { | |
6612 | if (ofgroup->group_id == group_id) { | |
6613 | delete_group__(ofproto, ofgroup); | |
6614 | return; | |
6615 | } | |
6616 | } | |
6617 | } | |
6618 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
6619 | } | |
6620 | ||
daab0ae6 BP |
6621 | /* Delete all groups from 'ofproto'. |
6622 | * | |
6623 | * This is intended for use within an ofproto provider's 'destruct' | |
6624 | * function. */ | |
6625 | void | |
6626 | ofproto_group_delete_all(struct ofproto *ofproto) | |
6627 | { | |
6628 | delete_group(ofproto, OFPG_ALL); | |
6629 | } | |
6630 | ||
7395c052 NZ |
6631 | static enum ofperr |
6632 | handle_group_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
6633 | { | |
6634 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
6635 | struct ofputil_group_mod gm; | |
6636 | enum ofperr error; | |
6637 | ||
6638 | error = reject_slave_controller(ofconn); | |
6639 | if (error) { | |
6640 | return error; | |
6641 | } | |
6642 | ||
6643 | error = ofputil_decode_group_mod(oh, &gm); | |
6644 | if (error) { | |
6645 | return error; | |
6646 | } | |
6647 | ||
6648 | switch (gm.command) { | |
6649 | case OFPGC11_ADD: | |
3c35db62 NR |
6650 | error = add_group(ofproto, &gm); |
6651 | break; | |
7395c052 NZ |
6652 | |
6653 | case OFPGC11_MODIFY: | |
3c35db62 NR |
6654 | error = modify_group(ofproto, &gm); |
6655 | break; | |
7395c052 NZ |
6656 | |
6657 | case OFPGC11_DELETE: | |
6658 | delete_group(ofproto, gm.group_id); | |
3c35db62 NR |
6659 | error = 0; |
6660 | break; | |
7395c052 | 6661 | |
fce4730c | 6662 | case OFPGC15_INSERT_BUCKET: |
3c35db62 NR |
6663 | error = modify_group(ofproto, &gm); |
6664 | break; | |
fce4730c SH |
6665 | |
6666 | case OFPGC15_REMOVE_BUCKET: | |
3c35db62 NR |
6667 | error = modify_group(ofproto, &gm); |
6668 | break; | |
fce4730c | 6669 | |
7395c052 NZ |
6670 | default: |
6671 | if (gm.command > OFPGC11_DELETE) { | |
d2873d53 | 6672 | VLOG_INFO_RL(&rl, "%s: Invalid group_mod command type %d", |
7395c052 NZ |
6673 | ofproto->name, gm.command); |
6674 | } | |
63eded98 | 6675 | error = OFPERR_OFPGMFC_BAD_COMMAND; |
7395c052 | 6676 | } |
3c35db62 NR |
6677 | |
6678 | if (!error) { | |
6679 | struct ofputil_requestforward rf; | |
6680 | rf.xid = oh->xid; | |
6681 | rf.reason = OFPRFR_GROUP_MOD; | |
6682 | rf.group_mod = &gm; | |
6683 | connmgr_send_requestforward(ofproto->connmgr, ofconn, &rf); | |
6684 | } | |
63eded98 BP |
6685 | ofputil_bucket_list_destroy(&gm.buckets); |
6686 | ||
3c35db62 | 6687 | return error; |
7395c052 NZ |
6688 | } |
6689 | ||
3c1bb396 BP |
6690 | enum ofputil_table_miss |
6691 | ofproto_table_get_miss_config(const struct ofproto *ofproto, uint8_t table_id) | |
6d328fa2 | 6692 | { |
82c22d34 BP |
6693 | enum ofputil_table_miss miss; |
6694 | ||
6695 | atomic_read_relaxed(&ofproto->tables[table_id].miss_config, &miss); | |
6696 | return miss; | |
6697 | } | |
6698 | ||
6699 | static void | |
6700 | table_mod__(struct oftable *oftable, | |
de7d3c07 | 6701 | const struct ofputil_table_mod *tm) |
82c22d34 | 6702 | { |
de7d3c07 | 6703 | if (tm->miss == OFPUTIL_TABLE_MISS_DEFAULT) { |
82c22d34 BP |
6704 | /* This is how an OFPT_TABLE_MOD decodes if it doesn't specify any |
6705 | * table-miss configuration (because the protocol used doesn't have | |
6706 | * such a concept), so there's nothing to do. */ | |
6707 | } else { | |
de7d3c07 | 6708 | atomic_store_relaxed(&oftable->miss_config, tm->miss); |
82c22d34 BP |
6709 | } |
6710 | ||
6711 | unsigned int new_eviction = oftable->eviction; | |
de7d3c07 | 6712 | if (tm->eviction == OFPUTIL_TABLE_EVICTION_ON) { |
82c22d34 | 6713 | new_eviction |= EVICTION_OPENFLOW; |
de7d3c07 | 6714 | } else if (tm->eviction == OFPUTIL_TABLE_EVICTION_OFF) { |
82c22d34 BP |
6715 | new_eviction &= ~EVICTION_OPENFLOW; |
6716 | } | |
afcea9ea | 6717 | |
82c22d34 BP |
6718 | if (new_eviction != oftable->eviction) { |
6719 | ovs_mutex_lock(&ofproto_mutex); | |
6720 | oftable_configure_eviction(oftable, new_eviction, | |
6721 | oftable->eviction_fields, | |
6722 | oftable->n_eviction_fields); | |
6723 | ovs_mutex_unlock(&ofproto_mutex); | |
6724 | } | |
de7d3c07 SJ |
6725 | |
6726 | if (tm->vacancy != OFPUTIL_TABLE_VACANCY_DEFAULT) { | |
6727 | ovs_mutex_lock(&ofproto_mutex); | |
6728 | oftable->vacancy_enabled = (tm->vacancy == OFPUTIL_TABLE_VACANCY_ON | |
6729 | ? OFPTC14_VACANCY_EVENTS | |
6730 | : 0); | |
6731 | oftable->vacancy_down = tm->table_vacancy.vacancy_down; | |
6732 | oftable->vacancy_up = tm->table_vacancy.vacancy_up; | |
6733 | ovs_mutex_unlock(&ofproto_mutex); | |
6734 | } | |
6d328fa2 SH |
6735 | } |
6736 | ||
67761761 SH |
6737 | static enum ofperr |
6738 | table_mod(struct ofproto *ofproto, const struct ofputil_table_mod *tm) | |
6739 | { | |
3c1bb396 | 6740 | if (!check_table_id(ofproto, tm->table_id)) { |
67761761 | 6741 | return OFPERR_OFPTMFC_BAD_TABLE; |
82c22d34 BP |
6742 | } |
6743 | ||
6744 | /* Don't allow the eviction flags to be changed (except to the only fixed | |
6745 | * value that OVS supports). OF1.4 says this is normal: "The | |
6746 | * OFPTMPT_EVICTION property usually cannot be modified using a | |
6747 | * OFP_TABLE_MOD request, because the eviction mechanism is switch | |
6748 | * defined". */ | |
6749 | if (tm->eviction_flags != UINT32_MAX | |
6750 | && tm->eviction_flags != OFPROTO_EVICTION_FLAGS) { | |
6751 | return OFPERR_OFPTMFC_BAD_CONFIG; | |
6752 | } | |
6753 | ||
6754 | if (tm->table_id == OFPTT_ALL) { | |
6755 | struct oftable *oftable; | |
6756 | OFPROTO_FOR_EACH_TABLE (oftable, ofproto) { | |
6757 | if (!(oftable->flags & (OFTABLE_HIDDEN | OFTABLE_READONLY))) { | |
de7d3c07 | 6758 | table_mod__(oftable, tm); |
3c1bb396 | 6759 | } |
3c1bb396 | 6760 | } |
82c22d34 BP |
6761 | } else { |
6762 | struct oftable *oftable = &ofproto->tables[tm->table_id]; | |
6763 | if (oftable->flags & OFTABLE_READONLY) { | |
6764 | return OFPERR_OFPTMFC_EPERM; | |
6765 | } | |
de7d3c07 | 6766 | table_mod__(oftable, tm); |
67761761 | 6767 | } |
82c22d34 | 6768 | |
67761761 SH |
6769 | return 0; |
6770 | } | |
6771 | ||
918f2b82 AZ |
6772 | static enum ofperr |
6773 | handle_table_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
6774 | { | |
67761761 | 6775 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
918f2b82 AZ |
6776 | struct ofputil_table_mod tm; |
6777 | enum ofperr error; | |
6778 | ||
6779 | error = reject_slave_controller(ofconn); | |
6780 | if (error) { | |
6781 | return error; | |
6782 | } | |
6783 | ||
6784 | error = ofputil_decode_table_mod(oh, &tm); | |
6785 | if (error) { | |
6786 | return error; | |
6787 | } | |
6788 | ||
67761761 | 6789 | return table_mod(ofproto, &tm); |
918f2b82 AZ |
6790 | } |
6791 | ||
777af88d | 6792 | static enum ofperr |
8be00367 | 6793 | ofproto_flow_mod_start(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
1f42be1c | 6794 | OVS_REQUIRES(ofproto_mutex) |
777af88d | 6795 | { |
8be00367 | 6796 | switch (ofm->fm.command) { |
1f42be1c | 6797 | case OFPFC_ADD: |
8be00367 JR |
6798 | return add_flow_start(ofproto, ofm); |
6799 | /* , &be->old_rules.stub[0], | |
6800 | &be->new_rules.stub[0]); */ | |
1f42be1c | 6801 | case OFPFC_MODIFY: |
8be00367 | 6802 | return modify_flows_start_loose(ofproto, ofm); |
1f42be1c | 6803 | case OFPFC_MODIFY_STRICT: |
8be00367 | 6804 | return modify_flow_start_strict(ofproto, ofm); |
1f42be1c | 6805 | case OFPFC_DELETE: |
8be00367 | 6806 | return delete_flows_start_loose(ofproto, ofm); |
1f42be1c JR |
6807 | |
6808 | case OFPFC_DELETE_STRICT: | |
8be00367 | 6809 | return delete_flow_start_strict(ofproto, ofm); |
1f42be1c JR |
6810 | } |
6811 | ||
6812 | return OFPERR_OFPFMFC_BAD_COMMAND; | |
6813 | } | |
6814 | ||
6815 | static void | |
8be00367 | 6816 | ofproto_flow_mod_revert(struct ofproto *ofproto, struct ofproto_flow_mod *ofm) |
1f42be1c JR |
6817 | OVS_REQUIRES(ofproto_mutex) |
6818 | { | |
8be00367 | 6819 | switch (ofm->fm.command) { |
1f42be1c | 6820 | case OFPFC_ADD: |
8be00367 | 6821 | add_flow_revert(ofproto, ofm); |
1f42be1c JR |
6822 | break; |
6823 | ||
6824 | case OFPFC_MODIFY: | |
6825 | case OFPFC_MODIFY_STRICT: | |
8be00367 | 6826 | modify_flows_revert(ofproto, ofm); |
1f42be1c JR |
6827 | break; |
6828 | ||
6829 | case OFPFC_DELETE: | |
6830 | case OFPFC_DELETE_STRICT: | |
8be00367 | 6831 | delete_flows_revert(ofproto, ofm); |
1f42be1c JR |
6832 | break; |
6833 | ||
6834 | default: | |
6835 | break; | |
6836 | } | |
6837 | } | |
6838 | ||
6839 | static void | |
8be00367 JR |
6840 | ofproto_flow_mod_finish(struct ofproto *ofproto, |
6841 | struct ofproto_flow_mod *ofm, | |
6842 | const struct flow_mod_requester *req) | |
1f42be1c JR |
6843 | OVS_REQUIRES(ofproto_mutex) |
6844 | { | |
8be00367 | 6845 | switch (ofm->fm.command) { |
1f42be1c | 6846 | case OFPFC_ADD: |
8be00367 | 6847 | add_flow_finish(ofproto, ofm, req); |
1f42be1c JR |
6848 | break; |
6849 | ||
6850 | case OFPFC_MODIFY: | |
6851 | case OFPFC_MODIFY_STRICT: | |
8be00367 | 6852 | modify_flows_finish(ofproto, ofm, req); |
1f42be1c JR |
6853 | break; |
6854 | ||
6855 | case OFPFC_DELETE: | |
6856 | case OFPFC_DELETE_STRICT: | |
8be00367 | 6857 | delete_flows_finish(ofproto, ofm, req); |
1f42be1c JR |
6858 | break; |
6859 | ||
6860 | default: | |
6861 | break; | |
6862 | } | |
6863 | } | |
6864 | ||
39c94593 JR |
6865 | /* Commit phases (all while locking ofproto_mutex): |
6866 | * | |
6867 | * 1. Begin: Gather resources and make changes visible in the next version. | |
6868 | * - Mark affected rules for removal in the next version. | |
6869 | * - Create new replacement rules, make visible in the next | |
6870 | * version. | |
6871 | * - Do not send any events or notifications. | |
6872 | * | |
6873 | * 2. Revert: Fail if any errors are found. After this point no errors are | |
6874 | * possible. No visible changes were made, so rollback is minimal (remove | |
6875 | * added invisible rules, restore visibility of rules marked for removal). | |
6876 | * | |
1c38055d JR |
6877 | * 3. Finish: Make the changes visible for lookups. Insert replacement rules to |
6878 | * the ofproto provider. Remove replaced and deleted rules from ofproto data | |
6879 | * structures, and Schedule postponed removal of deleted rules from the | |
6880 | * classifier. Send notifications, buffered packets, etc. | |
39c94593 | 6881 | */ |
1f42be1c JR |
6882 | static enum ofperr |
6883 | do_bundle_commit(struct ofconn *ofconn, uint32_t id, uint16_t flags) | |
6884 | { | |
6885 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
8be00367 | 6886 | cls_version_t version = ofproto->tables_version + 1; |
1f42be1c JR |
6887 | struct ofp_bundle *bundle; |
6888 | struct ofp_bundle_entry *be; | |
777af88d | 6889 | enum ofperr error; |
1f42be1c JR |
6890 | |
6891 | bundle = ofconn_get_bundle(ofconn, id); | |
6892 | ||
6893 | if (!bundle) { | |
6894 | return OFPERR_OFPBFC_BAD_ID; | |
6895 | } | |
6896 | if (bundle->flags != flags) { | |
6897 | error = OFPERR_OFPBFC_BAD_FLAGS; | |
6898 | } else { | |
1c38055d JR |
6899 | bool prev_is_port_mod = false; |
6900 | ||
1f42be1c JR |
6901 | error = 0; |
6902 | ovs_mutex_lock(&ofproto_mutex); | |
39c94593 JR |
6903 | |
6904 | /* 1. Begin. */ | |
1f42be1c JR |
6905 | LIST_FOR_EACH (be, node, &bundle->msg_list) { |
6906 | if (be->type == OFPTYPE_PORT_MOD) { | |
1c38055d JR |
6907 | /* Our port mods are not atomic. */ |
6908 | if (flags & OFPBF_ATOMIC) { | |
6909 | error = OFPERR_OFPBFC_MSG_FAILED; | |
6910 | } else { | |
6911 | prev_is_port_mod = true; | |
8be00367 | 6912 | error = port_mod_start(ofconn, &be->opm.pm, &be->opm.port); |
1c38055d | 6913 | } |
1f42be1c | 6914 | } else if (be->type == OFPTYPE_FLOW_MOD) { |
1c38055d JR |
6915 | /* Flow mods between port mods are applied as a single |
6916 | * version, but the versions are published only after | |
6917 | * we know the commit is successful. */ | |
6918 | if (prev_is_port_mod) { | |
8be00367 | 6919 | ++version; |
1c38055d JR |
6920 | } |
6921 | prev_is_port_mod = false; | |
8be00367 JR |
6922 | /* Store the version in which the changes should take |
6923 | * effect. */ | |
6924 | be->ofm.version = version; | |
6925 | error = ofproto_flow_mod_start(ofproto, &be->ofm); | |
1f42be1c JR |
6926 | } else { |
6927 | OVS_NOT_REACHED(); | |
6928 | } | |
6929 | if (error) { | |
6930 | break; | |
6931 | } | |
6932 | } | |
1c38055d | 6933 | |
1f42be1c JR |
6934 | if (error) { |
6935 | /* Send error referring to the original message. */ | |
6936 | if (error) { | |
6937 | ofconn_send_error(ofconn, be->ofp_msg, error); | |
6938 | error = OFPERR_OFPBFC_MSG_FAILED; | |
6939 | } | |
6940 | ||
39c94593 | 6941 | /* 2. Revert. Undo all the changes made above. */ |
1f42be1c JR |
6942 | LIST_FOR_EACH_REVERSE_CONTINUE(be, node, &bundle->msg_list) { |
6943 | if (be->type == OFPTYPE_FLOW_MOD) { | |
8be00367 | 6944 | ofproto_flow_mod_revert(ofproto, &be->ofm); |
1f42be1c | 6945 | } |
1c38055d | 6946 | /* Nothing needs to be reverted for a port mod. */ |
1f42be1c JR |
6947 | } |
6948 | } else { | |
39c94593 | 6949 | /* 4. Finish. */ |
1f42be1c JR |
6950 | LIST_FOR_EACH (be, node, &bundle->msg_list) { |
6951 | if (be->type == OFPTYPE_FLOW_MOD) { | |
6952 | struct flow_mod_requester req = { ofconn, be->ofp_msg }; | |
6953 | ||
8be00367 JR |
6954 | /* Bump the lookup version to the one of the current |
6955 | * message. This makes all the changes in the bundle at | |
6956 | * this version visible to lookups at once. */ | |
6957 | if (ofproto->tables_version < be->ofm.version) { | |
6958 | ofproto->tables_version = be->ofm.version; | |
6959 | ofproto->ofproto_class->set_tables_version( | |
6960 | ofproto, ofproto->tables_version); | |
6961 | } | |
6962 | ||
6963 | ofproto_flow_mod_finish(ofproto, &be->ofm, &req); | |
1c38055d JR |
6964 | } else if (be->type == OFPTYPE_PORT_MOD) { |
6965 | /* Perform the actual port mod. This is not atomic, i.e., | |
6966 | * the effects will be immediately seen by upcall | |
6967 | * processing regardless of the lookup version. It should | |
6968 | * be noted that port configuration changes can originate | |
6969 | * also from OVSDB changes asynchronously to all upcall | |
6970 | * processing. */ | |
8be00367 | 6971 | port_mod_finish(ofconn, &be->opm.pm, be->opm.port); |
1f42be1c JR |
6972 | } |
6973 | } | |
6974 | } | |
1c38055d | 6975 | |
1f42be1c JR |
6976 | ofmonitor_flush(ofproto->connmgr); |
6977 | ovs_mutex_unlock(&ofproto_mutex); | |
6978 | ||
6979 | run_rule_executes(ofproto); | |
6980 | } | |
6981 | ||
6982 | /* The bundle is discarded regardless the outcome. */ | |
6983 | ofp_bundle_remove__(ofconn, bundle, !error); | |
6984 | return error; | |
6985 | } | |
6986 | ||
6987 | static enum ofperr | |
6988 | handle_bundle_control(struct ofconn *ofconn, const struct ofp_header *oh) | |
6989 | { | |
777af88d | 6990 | struct ofputil_bundle_ctrl_msg bctrl; |
777af88d | 6991 | struct ofputil_bundle_ctrl_msg reply; |
1f42be1c JR |
6992 | struct ofpbuf *buf; |
6993 | enum ofperr error; | |
777af88d | 6994 | |
ba9d374a JR |
6995 | error = reject_slave_controller(ofconn); |
6996 | if (error) { | |
6997 | return error; | |
6998 | } | |
6999 | ||
777af88d AC |
7000 | error = ofputil_decode_bundle_ctrl(oh, &bctrl); |
7001 | if (error) { | |
7002 | return error; | |
7003 | } | |
7004 | reply.flags = 0; | |
7005 | reply.bundle_id = bctrl.bundle_id; | |
7006 | ||
7007 | switch (bctrl.type) { | |
7008 | case OFPBCT_OPEN_REQUEST: | |
7009 | error = ofp_bundle_open(ofconn, bctrl.bundle_id, bctrl.flags); | |
7010 | reply.type = OFPBCT_OPEN_REPLY; | |
7011 | break; | |
7012 | case OFPBCT_CLOSE_REQUEST: | |
7013 | error = ofp_bundle_close(ofconn, bctrl.bundle_id, bctrl.flags); | |
ea53e3a8 | 7014 | reply.type = OFPBCT_CLOSE_REPLY; |
777af88d AC |
7015 | break; |
7016 | case OFPBCT_COMMIT_REQUEST: | |
1f42be1c | 7017 | error = do_bundle_commit(ofconn, bctrl.bundle_id, bctrl.flags); |
777af88d AC |
7018 | reply.type = OFPBCT_COMMIT_REPLY; |
7019 | break; | |
7020 | case OFPBCT_DISCARD_REQUEST: | |
7021 | error = ofp_bundle_discard(ofconn, bctrl.bundle_id); | |
7022 | reply.type = OFPBCT_DISCARD_REPLY; | |
7023 | break; | |
7024 | ||
7025 | case OFPBCT_OPEN_REPLY: | |
7026 | case OFPBCT_CLOSE_REPLY: | |
7027 | case OFPBCT_COMMIT_REPLY: | |
7028 | case OFPBCT_DISCARD_REPLY: | |
7029 | return OFPERR_OFPBFC_BAD_TYPE; | |
7030 | break; | |
7031 | } | |
7032 | ||
7033 | if (!error) { | |
7034 | buf = ofputil_encode_bundle_ctrl_reply(oh, &reply); | |
7035 | ofconn_send_reply(ofconn, buf); | |
7036 | } | |
7037 | return error; | |
7038 | } | |
7039 | ||
777af88d AC |
7040 | static enum ofperr |
7041 | handle_bundle_add(struct ofconn *ofconn, const struct ofp_header *oh) | |
7042 | { | |
7ac27a04 | 7043 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
777af88d AC |
7044 | enum ofperr error; |
7045 | struct ofputil_bundle_add_msg badd; | |
7ac27a04 JR |
7046 | struct ofp_bundle_entry *bmsg; |
7047 | enum ofptype type; | |
777af88d | 7048 | |
ba9d374a JR |
7049 | error = reject_slave_controller(ofconn); |
7050 | if (error) { | |
7051 | return error; | |
7052 | } | |
7053 | ||
7ac27a04 | 7054 | error = ofputil_decode_bundle_add(oh, &badd, &type); |
777af88d AC |
7055 | if (error) { |
7056 | return error; | |
7057 | } | |
7058 | ||
1f42be1c | 7059 | bmsg = ofp_bundle_entry_alloc(type, badd.msg); |
7ac27a04 JR |
7060 | |
7061 | if (type == OFPTYPE_PORT_MOD) { | |
8be00367 | 7062 | error = ofputil_decode_port_mod(badd.msg, &bmsg->opm.pm, false); |
7ac27a04 JR |
7063 | } else if (type == OFPTYPE_FLOW_MOD) { |
7064 | struct ofpbuf ofpacts; | |
7065 | uint64_t ofpacts_stub[1024 / 8]; | |
7066 | ||
7067 | ofpbuf_use_stub(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); | |
8be00367 | 7068 | error = ofputil_decode_flow_mod(&bmsg->ofm.fm, badd.msg, |
7ac27a04 JR |
7069 | ofconn_get_protocol(ofconn), |
7070 | &ofpacts, | |
7071 | u16_to_ofp(ofproto->max_ports), | |
7072 | ofproto->n_tables); | |
7073 | /* Move actions to heap. */ | |
8be00367 | 7074 | bmsg->ofm.fm.ofpacts = ofpbuf_steal_data(&ofpacts); |
7ac27a04 | 7075 | |
8be00367 JR |
7076 | if (!error && bmsg->ofm.fm.ofpacts_len) { |
7077 | error = ofproto_check_ofpacts(ofproto, bmsg->ofm.fm.ofpacts, | |
7078 | bmsg->ofm.fm.ofpacts_len); | |
7ac27a04 JR |
7079 | } |
7080 | } else { | |
7081 | OVS_NOT_REACHED(); | |
7082 | } | |
7083 | ||
7084 | if (!error) { | |
7085 | error = ofp_bundle_add_message(ofconn, badd.bundle_id, badd.flags, | |
7086 | bmsg); | |
7087 | } | |
7088 | ||
7089 | if (error) { | |
7090 | ofp_bundle_entry_free(bmsg); | |
7091 | } | |
7092 | ||
7093 | return error; | |
777af88d AC |
7094 | } |
7095 | ||
6159c531 | 7096 | static enum ofperr |
4e548ad9 | 7097 | handle_tlv_table_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
6159c531 | 7098 | { |
4e548ad9 | 7099 | struct ofputil_tlv_table_mod ttm; |
6159c531 JG |
7100 | enum ofperr error; |
7101 | ||
7102 | error = reject_slave_controller(ofconn); | |
7103 | if (error) { | |
7104 | return error; | |
7105 | } | |
7106 | ||
4e548ad9 | 7107 | error = ofputil_decode_tlv_table_mod(oh, &ttm); |
6159c531 JG |
7108 | if (error) { |
7109 | return error; | |
7110 | } | |
7111 | ||
4e548ad9 | 7112 | error = tun_metadata_table_mod(&ttm); |
9558d2a5 | 7113 | |
4e548ad9 | 7114 | ofputil_uninit_tlv_table(&ttm.mappings); |
9558d2a5 | 7115 | return error; |
6159c531 JG |
7116 | } |
7117 | ||
7118 | static enum ofperr | |
4e548ad9 | 7119 | handle_tlv_table_request(struct ofconn *ofconn, const struct ofp_header *oh) |
6159c531 | 7120 | { |
4e548ad9 | 7121 | struct ofputil_tlv_table_reply ttr; |
9558d2a5 JG |
7122 | struct ofpbuf *b; |
7123 | ||
4e548ad9 ML |
7124 | tun_metadata_table_request(&ttr); |
7125 | b = ofputil_encode_tlv_table_reply(oh, &ttr); | |
7126 | ofputil_uninit_tlv_table(&ttr.mappings); | |
9558d2a5 JG |
7127 | |
7128 | ofconn_send_reply(ofconn, b); | |
7129 | return 0; | |
6159c531 JG |
7130 | } |
7131 | ||
90bf1e07 | 7132 | static enum ofperr |
d1e2cf21 | 7133 | handle_openflow__(struct ofconn *ofconn, const struct ofpbuf *msg) |
15aaf599 | 7134 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 7135 | { |
6fd6ed71 | 7136 | const struct ofp_header *oh = msg->data; |
982697a4 | 7137 | enum ofptype type; |
90bf1e07 | 7138 | enum ofperr error; |
064af421 | 7139 | |
982697a4 | 7140 | error = ofptype_decode(&type, oh); |
d1e2cf21 BP |
7141 | if (error) { |
7142 | return error; | |
7143 | } | |
ff3c2c63 YT |
7144 | if (oh->version >= OFP13_VERSION && ofpmsg_is_stat_request(oh) |
7145 | && ofpmp_more(oh)) { | |
7146 | /* We have no buffer implementation for multipart requests. | |
7147 | * Report overflow for requests which consists of multiple | |
7148 | * messages. */ | |
7149 | return OFPERR_OFPBRC_MULTIPART_BUFFER_OVERFLOW; | |
7150 | } | |
064af421 | 7151 | |
982697a4 | 7152 | switch (type) { |
d1e2cf21 | 7153 | /* OpenFlow requests. */ |
982697a4 | 7154 | case OFPTYPE_ECHO_REQUEST: |
d1e2cf21 | 7155 | return handle_echo_request(ofconn, oh); |
064af421 | 7156 | |
982697a4 | 7157 | case OFPTYPE_FEATURES_REQUEST: |
d1e2cf21 | 7158 | return handle_features_request(ofconn, oh); |
064af421 | 7159 | |
982697a4 | 7160 | case OFPTYPE_GET_CONFIG_REQUEST: |
d1e2cf21 | 7161 | return handle_get_config_request(ofconn, oh); |
064af421 | 7162 | |
982697a4 BP |
7163 | case OFPTYPE_SET_CONFIG: |
7164 | return handle_set_config(ofconn, oh); | |
064af421 | 7165 | |
982697a4 BP |
7166 | case OFPTYPE_PACKET_OUT: |
7167 | return handle_packet_out(ofconn, oh); | |
064af421 | 7168 | |
982697a4 | 7169 | case OFPTYPE_PORT_MOD: |
d1e2cf21 | 7170 | return handle_port_mod(ofconn, oh); |
064af421 | 7171 | |
982697a4 | 7172 | case OFPTYPE_FLOW_MOD: |
2e4f5fcf | 7173 | return handle_flow_mod(ofconn, oh); |
064af421 | 7174 | |
7395c052 NZ |
7175 | case OFPTYPE_GROUP_MOD: |
7176 | return handle_group_mod(ofconn, oh); | |
7177 | ||
918f2b82 AZ |
7178 | case OFPTYPE_TABLE_MOD: |
7179 | return handle_table_mod(ofconn, oh); | |
7180 | ||
9cae45dc JR |
7181 | case OFPTYPE_METER_MOD: |
7182 | return handle_meter_mod(ofconn, oh); | |
7183 | ||
982697a4 | 7184 | case OFPTYPE_BARRIER_REQUEST: |
d1e2cf21 | 7185 | return handle_barrier_request(ofconn, oh); |
064af421 | 7186 | |
6ea4776b JR |
7187 | case OFPTYPE_ROLE_REQUEST: |
7188 | return handle_role_request(ofconn, oh); | |
7189 | ||
d1e2cf21 | 7190 | /* OpenFlow replies. */ |
982697a4 | 7191 | case OFPTYPE_ECHO_REPLY: |
d1e2cf21 | 7192 | return 0; |
246e61ea | 7193 | |
d1e2cf21 | 7194 | /* Nicira extension requests. */ |
982697a4 | 7195 | case OFPTYPE_FLOW_MOD_TABLE_ID: |
6c1491fb | 7196 | return handle_nxt_flow_mod_table_id(ofconn, oh); |
d1e2cf21 | 7197 | |
982697a4 | 7198 | case OFPTYPE_SET_FLOW_FORMAT: |
d1e2cf21 BP |
7199 | return handle_nxt_set_flow_format(ofconn, oh); |
7200 | ||
982697a4 | 7201 | case OFPTYPE_SET_PACKET_IN_FORMAT: |
54834960 EJ |
7202 | return handle_nxt_set_packet_in_format(ofconn, oh); |
7203 | ||
982697a4 | 7204 | case OFPTYPE_SET_CONTROLLER_ID: |
a7349929 BP |
7205 | return handle_nxt_set_controller_id(ofconn, oh); |
7206 | ||
982697a4 | 7207 | case OFPTYPE_FLOW_AGE: |
f27f2134 BP |
7208 | /* Nothing to do. */ |
7209 | return 0; | |
7210 | ||
982697a4 | 7211 | case OFPTYPE_FLOW_MONITOR_CANCEL: |
2b07c8b1 BP |
7212 | return handle_flow_monitor_cancel(ofconn, oh); |
7213 | ||
982697a4 | 7214 | case OFPTYPE_SET_ASYNC_CONFIG: |
80d5aefd BP |
7215 | return handle_nxt_set_async_config(ofconn, oh); |
7216 | ||
c423b3b3 AC |
7217 | case OFPTYPE_GET_ASYNC_REQUEST: |
7218 | return handle_nxt_get_async_request(ofconn, oh); | |
7219 | ||
349adfb2 | 7220 | /* Statistics requests. */ |
982697a4 BP |
7221 | case OFPTYPE_DESC_STATS_REQUEST: |
7222 | return handle_desc_stats_request(ofconn, oh); | |
7223 | ||
7224 | case OFPTYPE_FLOW_STATS_REQUEST: | |
7225 | return handle_flow_stats_request(ofconn, oh); | |
7226 | ||
7227 | case OFPTYPE_AGGREGATE_STATS_REQUEST: | |
7228 | return handle_aggregate_stats_request(ofconn, oh); | |
7229 | ||
7230 | case OFPTYPE_TABLE_STATS_REQUEST: | |
7231 | return handle_table_stats_request(ofconn, oh); | |
7232 | ||
3c4e10fb BP |
7233 | case OFPTYPE_TABLE_FEATURES_STATS_REQUEST: |
7234 | return handle_table_features_request(ofconn, oh); | |
7235 | ||
03c72922 BP |
7236 | case OFPTYPE_TABLE_DESC_REQUEST: |
7237 | return handle_table_desc_request(ofconn, oh); | |
7238 | ||
982697a4 BP |
7239 | case OFPTYPE_PORT_STATS_REQUEST: |
7240 | return handle_port_stats_request(ofconn, oh); | |
7241 | ||
7242 | case OFPTYPE_QUEUE_STATS_REQUEST: | |
7243 | return handle_queue_stats_request(ofconn, oh); | |
7244 | ||
7245 | case OFPTYPE_PORT_DESC_STATS_REQUEST: | |
7246 | return handle_port_desc_stats_request(ofconn, oh); | |
7247 | ||
7248 | case OFPTYPE_FLOW_MONITOR_STATS_REQUEST: | |
7249 | return handle_flow_monitor_request(ofconn, oh); | |
7250 | ||
261bd854 BP |
7251 | case OFPTYPE_METER_STATS_REQUEST: |
7252 | case OFPTYPE_METER_CONFIG_STATS_REQUEST: | |
9cae45dc JR |
7253 | return handle_meter_request(ofconn, oh, type); |
7254 | ||
261bd854 | 7255 | case OFPTYPE_METER_FEATURES_STATS_REQUEST: |
9cae45dc JR |
7256 | return handle_meter_features_request(ofconn, oh); |
7257 | ||
261bd854 | 7258 | case OFPTYPE_GROUP_STATS_REQUEST: |
7395c052 NZ |
7259 | return handle_group_stats_request(ofconn, oh); |
7260 | ||
261bd854 | 7261 | case OFPTYPE_GROUP_DESC_STATS_REQUEST: |
7395c052 NZ |
7262 | return handle_group_desc_stats_request(ofconn, oh); |
7263 | ||
261bd854 | 7264 | case OFPTYPE_GROUP_FEATURES_STATS_REQUEST: |
7395c052 NZ |
7265 | return handle_group_features_stats_request(ofconn, oh); |
7266 | ||
7395c052 | 7267 | case OFPTYPE_QUEUE_GET_CONFIG_REQUEST: |
e8f9a7bb | 7268 | return handle_queue_get_config_request(ofconn, oh); |
2e1ae200 | 7269 | |
777af88d AC |
7270 | case OFPTYPE_BUNDLE_CONTROL: |
7271 | return handle_bundle_control(ofconn, oh); | |
7272 | ||
7273 | case OFPTYPE_BUNDLE_ADD_MESSAGE: | |
7274 | return handle_bundle_add(ofconn, oh); | |
7275 | ||
4e548ad9 ML |
7276 | case OFPTYPE_NXT_TLV_TABLE_MOD: |
7277 | return handle_tlv_table_mod(ofconn, oh); | |
6159c531 | 7278 | |
4e548ad9 ML |
7279 | case OFPTYPE_NXT_TLV_TABLE_REQUEST: |
7280 | return handle_tlv_table_request(ofconn, oh); | |
6159c531 | 7281 | |
982697a4 BP |
7282 | case OFPTYPE_HELLO: |
7283 | case OFPTYPE_ERROR: | |
7284 | case OFPTYPE_FEATURES_REPLY: | |
7285 | case OFPTYPE_GET_CONFIG_REPLY: | |
7286 | case OFPTYPE_PACKET_IN: | |
7287 | case OFPTYPE_FLOW_REMOVED: | |
7288 | case OFPTYPE_PORT_STATUS: | |
7289 | case OFPTYPE_BARRIER_REPLY: | |
c545d38d | 7290 | case OFPTYPE_QUEUE_GET_CONFIG_REPLY: |
982697a4 BP |
7291 | case OFPTYPE_DESC_STATS_REPLY: |
7292 | case OFPTYPE_FLOW_STATS_REPLY: | |
7293 | case OFPTYPE_QUEUE_STATS_REPLY: | |
7294 | case OFPTYPE_PORT_STATS_REPLY: | |
7295 | case OFPTYPE_TABLE_STATS_REPLY: | |
7296 | case OFPTYPE_AGGREGATE_STATS_REPLY: | |
7297 | case OFPTYPE_PORT_DESC_STATS_REPLY: | |
7298 | case OFPTYPE_ROLE_REPLY: | |
7299 | case OFPTYPE_FLOW_MONITOR_PAUSED: | |
7300 | case OFPTYPE_FLOW_MONITOR_RESUMED: | |
7301 | case OFPTYPE_FLOW_MONITOR_STATS_REPLY: | |
2e1ae200 | 7302 | case OFPTYPE_GET_ASYNC_REPLY: |
261bd854 BP |
7303 | case OFPTYPE_GROUP_STATS_REPLY: |
7304 | case OFPTYPE_GROUP_DESC_STATS_REPLY: | |
7305 | case OFPTYPE_GROUP_FEATURES_STATS_REPLY: | |
7306 | case OFPTYPE_METER_STATS_REPLY: | |
7307 | case OFPTYPE_METER_CONFIG_STATS_REPLY: | |
7308 | case OFPTYPE_METER_FEATURES_STATS_REPLY: | |
7309 | case OFPTYPE_TABLE_FEATURES_STATS_REPLY: | |
03c72922 | 7310 | case OFPTYPE_TABLE_DESC_REPLY: |
252f3411 | 7311 | case OFPTYPE_ROLE_STATUS: |
3c35db62 | 7312 | case OFPTYPE_REQUESTFORWARD: |
4e548ad9 | 7313 | case OFPTYPE_NXT_TLV_TABLE_REPLY: |
064af421 | 7314 | default: |
76ec08e0 YT |
7315 | if (ofpmsg_is_stat_request(oh)) { |
7316 | return OFPERR_OFPBRC_BAD_STAT; | |
7317 | } else { | |
7318 | return OFPERR_OFPBRC_BAD_TYPE; | |
7319 | } | |
064af421 | 7320 | } |
d1e2cf21 | 7321 | } |
064af421 | 7322 | |
b20f4073 | 7323 | static void |
e03248b7 | 7324 | handle_openflow(struct ofconn *ofconn, const struct ofpbuf *ofp_msg) |
15aaf599 | 7325 | OVS_EXCLUDED(ofproto_mutex) |
d1e2cf21 | 7326 | { |
d51c8b71 JR |
7327 | enum ofperr error = handle_openflow__(ofconn, ofp_msg); |
7328 | ||
b20f4073 | 7329 | if (error) { |
6fd6ed71 | 7330 | ofconn_send_error(ofconn, ofp_msg->data, error); |
064af421 | 7331 | } |
d1e2cf21 | 7332 | COVERAGE_INC(ofproto_recv_openflow); |
7ee20df1 BP |
7333 | } |
7334 | \f | |
7335 | /* Asynchronous operations. */ | |
7336 | ||
c84d8691 JR |
7337 | static void |
7338 | send_buffered_packet(const struct flow_mod_requester *req, uint32_t buffer_id, | |
834fe5cb | 7339 | struct rule *rule) |
15aaf599 | 7340 | OVS_REQUIRES(ofproto_mutex) |
7ee20df1 | 7341 | { |
c84d8691 JR |
7342 | if (req && req->ofconn && buffer_id != UINT32_MAX) { |
7343 | struct ofproto *ofproto = ofconn_get_ofproto(req->ofconn); | |
cf62fa4c | 7344 | struct dp_packet *packet; |
834fe5cb | 7345 | ofp_port_t in_port; |
c84d8691 | 7346 | enum ofperr error; |
b277c7cc | 7347 | |
c84d8691 JR |
7348 | error = ofconn_pktbuf_retrieve(req->ofconn, buffer_id, &packet, |
7349 | &in_port); | |
834fe5cb BP |
7350 | if (packet) { |
7351 | struct rule_execute *re; | |
b277c7cc | 7352 | |
834fe5cb | 7353 | ofproto_rule_ref(rule); |
b277c7cc | 7354 | |
834fe5cb BP |
7355 | re = xmalloc(sizeof *re); |
7356 | re->rule = rule; | |
7357 | re->in_port = in_port; | |
7358 | re->packet = packet; | |
b277c7cc | 7359 | |
834fe5cb BP |
7360 | if (!guarded_list_push_back(&ofproto->rule_executes, |
7361 | &re->list_node, 1024)) { | |
a2143702 | 7362 | ofproto_rule_unref(rule); |
cf62fa4c | 7363 | dp_packet_delete(re->packet); |
834fe5cb | 7364 | free(re); |
e615b0a3 | 7365 | } |
c84d8691 JR |
7366 | } else { |
7367 | ofconn_send_error(req->ofconn, req->request, error); | |
af822017 | 7368 | } |
7ee20df1 | 7369 | } |
7ee20df1 | 7370 | } |
064af421 | 7371 | \f |
064af421 | 7372 | static uint64_t |
fa60c019 | 7373 | pick_datapath_id(const struct ofproto *ofproto) |
064af421 | 7374 | { |
fa60c019 | 7375 | const struct ofport *port; |
064af421 | 7376 | |
abe529af | 7377 | port = ofproto_get_port(ofproto, OFPP_LOCAL); |
fa60c019 | 7378 | if (port) { |
74ff3298 | 7379 | struct eth_addr ea; |
fa60c019 BP |
7380 | int error; |
7381 | ||
74ff3298 | 7382 | error = netdev_get_etheraddr(port->netdev, &ea); |
064af421 BP |
7383 | if (!error) { |
7384 | return eth_addr_to_uint64(ea); | |
7385 | } | |
fbfa2911 BP |
7386 | VLOG_WARN("%s: could not get MAC address for %s (%s)", |
7387 | ofproto->name, netdev_get_name(port->netdev), | |
10a89ef0 | 7388 | ovs_strerror(error)); |
064af421 | 7389 | } |
fa60c019 | 7390 | return ofproto->fallback_dpid; |
064af421 BP |
7391 | } |
7392 | ||
7393 | static uint64_t | |
7394 | pick_fallback_dpid(void) | |
7395 | { | |
74ff3298 JR |
7396 | struct eth_addr ea; |
7397 | eth_addr_nicira_random(&ea); | |
064af421 BP |
7398 | return eth_addr_to_uint64(ea); |
7399 | } | |
7400 | \f | |
254750ce BP |
7401 | /* Table overflow policy. */ |
7402 | ||
ad3efdcb EJ |
7403 | /* Chooses and updates 'rulep' with a rule to evict from 'table'. Sets 'rulep' |
7404 | * to NULL if the table is not configured to evict rules or if the table | |
7405 | * contains no evictable rules. (Rules with a readlock on their evict rwlock, | |
7406 | * or with no timeouts are not evictable.) */ | |
7407 | static bool | |
7408 | choose_rule_to_evict(struct oftable *table, struct rule **rulep) | |
15aaf599 | 7409 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
7410 | { |
7411 | struct eviction_group *evg; | |
7412 | ||
ad3efdcb | 7413 | *rulep = NULL; |
82c22d34 | 7414 | if (!table->eviction) { |
ad3efdcb | 7415 | return false; |
254750ce BP |
7416 | } |
7417 | ||
7418 | /* In the common case, the outer and inner loops here will each be entered | |
7419 | * exactly once: | |
7420 | * | |
7421 | * - The inner loop normally "return"s in its first iteration. If the | |
7422 | * eviction group has any evictable rules, then it always returns in | |
7423 | * some iteration. | |
7424 | * | |
7425 | * - The outer loop only iterates more than once if the largest eviction | |
7426 | * group has no evictable rules. | |
7427 | * | |
7428 | * - The outer loop can exit only if table's 'max_flows' is all filled up | |
afe2143d | 7429 | * by unevictable rules. */ |
254750ce BP |
7430 | HEAP_FOR_EACH (evg, size_node, &table->eviction_groups_by_size) { |
7431 | struct rule *rule; | |
7432 | ||
7433 | HEAP_FOR_EACH (rule, evg_node, &evg->rules) { | |
15aaf599 BP |
7434 | *rulep = rule; |
7435 | return true; | |
254750ce BP |
7436 | } |
7437 | } | |
7438 | ||
ad3efdcb | 7439 | return false; |
254750ce | 7440 | } |
254750ce BP |
7441 | \f |
7442 | /* Eviction groups. */ | |
7443 | ||
7444 | /* Returns the priority to use for an eviction_group that contains 'n_rules' | |
7445 | * rules. The priority contains low-order random bits to ensure that eviction | |
7446 | * groups with the same number of rules are prioritized randomly. */ | |
7447 | static uint32_t | |
7448 | eviction_group_priority(size_t n_rules) | |
7449 | { | |
7450 | uint16_t size = MIN(UINT16_MAX, n_rules); | |
7451 | return (size << 16) | random_uint16(); | |
7452 | } | |
7453 | ||
7454 | /* Updates 'evg', an eviction_group within 'table', following a change that | |
7455 | * adds or removes rules in 'evg'. */ | |
7456 | static void | |
7457 | eviction_group_resized(struct oftable *table, struct eviction_group *evg) | |
15aaf599 | 7458 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
7459 | { |
7460 | heap_change(&table->eviction_groups_by_size, &evg->size_node, | |
7461 | eviction_group_priority(heap_count(&evg->rules))); | |
7462 | } | |
7463 | ||
7464 | /* Destroys 'evg', an eviction_group within 'table': | |
7465 | * | |
7466 | * - Removes all the rules, if any, from 'evg'. (It doesn't destroy the | |
7467 | * rules themselves, just removes them from the eviction group.) | |
7468 | * | |
7469 | * - Removes 'evg' from 'table'. | |
7470 | * | |
7471 | * - Frees 'evg'. */ | |
7472 | static void | |
7473 | eviction_group_destroy(struct oftable *table, struct eviction_group *evg) | |
15aaf599 | 7474 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
7475 | { |
7476 | while (!heap_is_empty(&evg->rules)) { | |
7477 | struct rule *rule; | |
7478 | ||
7479 | rule = CONTAINER_OF(heap_pop(&evg->rules), struct rule, evg_node); | |
7480 | rule->eviction_group = NULL; | |
7481 | } | |
7482 | hmap_remove(&table->eviction_groups_by_id, &evg->id_node); | |
7483 | heap_remove(&table->eviction_groups_by_size, &evg->size_node); | |
7484 | heap_destroy(&evg->rules); | |
7485 | free(evg); | |
7486 | } | |
7487 | ||
7488 | /* Removes 'rule' from its eviction group, if any. */ | |
7489 | static void | |
7490 | eviction_group_remove_rule(struct rule *rule) | |
15aaf599 | 7491 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
7492 | { |
7493 | if (rule->eviction_group) { | |
7494 | struct oftable *table = &rule->ofproto->tables[rule->table_id]; | |
7495 | struct eviction_group *evg = rule->eviction_group; | |
7496 | ||
7497 | rule->eviction_group = NULL; | |
7498 | heap_remove(&evg->rules, &rule->evg_node); | |
7499 | if (heap_is_empty(&evg->rules)) { | |
7500 | eviction_group_destroy(table, evg); | |
7501 | } else { | |
7502 | eviction_group_resized(table, evg); | |
7503 | } | |
7504 | } | |
7505 | } | |
7506 | ||
7507 | /* Hashes the 'rule''s values for the eviction_fields of 'rule''s table, and | |
7508 | * returns the hash value. */ | |
7509 | static uint32_t | |
7510 | eviction_group_hash_rule(struct rule *rule) | |
15aaf599 | 7511 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
7512 | { |
7513 | struct oftable *table = &rule->ofproto->tables[rule->table_id]; | |
7514 | const struct mf_subfield *sf; | |
5cb7a798 | 7515 | struct flow flow; |
254750ce BP |
7516 | uint32_t hash; |
7517 | ||
7518 | hash = table->eviction_group_id_basis; | |
8fd47924 | 7519 | miniflow_expand(rule->cr.match.flow, &flow); |
254750ce BP |
7520 | for (sf = table->eviction_fields; |
7521 | sf < &table->eviction_fields[table->n_eviction_fields]; | |
7522 | sf++) | |
7523 | { | |
5cb7a798 | 7524 | if (mf_are_prereqs_ok(sf->field, &flow)) { |
254750ce BP |
7525 | union mf_value value; |
7526 | ||
5cb7a798 | 7527 | mf_get_value(sf->field, &flow, &value); |
254750ce BP |
7528 | if (sf->ofs) { |
7529 | bitwise_zero(&value, sf->field->n_bytes, 0, sf->ofs); | |
7530 | } | |
7531 | if (sf->ofs + sf->n_bits < sf->field->n_bytes * 8) { | |
7532 | unsigned int start = sf->ofs + sf->n_bits; | |
7533 | bitwise_zero(&value, sf->field->n_bytes, start, | |
7534 | sf->field->n_bytes * 8 - start); | |
7535 | } | |
7536 | hash = hash_bytes(&value, sf->field->n_bytes, hash); | |
7537 | } else { | |
7538 | hash = hash_int(hash, 0); | |
7539 | } | |
7540 | } | |
7541 | ||
7542 | return hash; | |
7543 | } | |
7544 | ||
7545 | /* Returns an eviction group within 'table' with the given 'id', creating one | |
7546 | * if necessary. */ | |
7547 | static struct eviction_group * | |
7548 | eviction_group_find(struct oftable *table, uint32_t id) | |
15aaf599 | 7549 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
7550 | { |
7551 | struct eviction_group *evg; | |
7552 | ||
7553 | HMAP_FOR_EACH_WITH_HASH (evg, id_node, id, &table->eviction_groups_by_id) { | |
7554 | return evg; | |
7555 | } | |
7556 | ||
7557 | evg = xmalloc(sizeof *evg); | |
7558 | hmap_insert(&table->eviction_groups_by_id, &evg->id_node, id); | |
7559 | heap_insert(&table->eviction_groups_by_size, &evg->size_node, | |
7560 | eviction_group_priority(0)); | |
7561 | heap_init(&evg->rules); | |
7562 | ||
7563 | return evg; | |
7564 | } | |
7565 | ||
7566 | /* Returns an eviction priority for 'rule'. The return value should be | |
f70b94de BP |
7567 | * interpreted so that higher priorities make a rule a more attractive |
7568 | * candidate for eviction. */ | |
7569 | static uint64_t | |
dc437090 | 7570 | rule_eviction_priority(struct ofproto *ofproto, struct rule *rule) |
15aaf599 | 7571 | OVS_REQUIRES(ofproto_mutex) |
254750ce | 7572 | { |
f70b94de BP |
7573 | /* Calculate absolute time when this flow will expire. If it will never |
7574 | * expire, then return 0 to make it unevictable. */ | |
dc437090 | 7575 | long long int expiration = LLONG_MAX; |
dc437090 | 7576 | if (rule->hard_timeout) { |
f70b94de BP |
7577 | /* 'modified' needs protection even when we hold 'ofproto_mutex'. */ |
7578 | ovs_mutex_lock(&rule->mutex); | |
7579 | long long int modified = rule->modified; | |
7580 | ovs_mutex_unlock(&rule->mutex); | |
7581 | ||
dc437090 JR |
7582 | expiration = modified + rule->hard_timeout * 1000; |
7583 | } | |
7584 | if (rule->idle_timeout) { | |
7585 | uint64_t packets, bytes; | |
7586 | long long int used; | |
7587 | long long int idle_expiration; | |
7588 | ||
7589 | ofproto->ofproto_class->rule_get_stats(rule, &packets, &bytes, &used); | |
7590 | idle_expiration = used + rule->idle_timeout * 1000; | |
7591 | expiration = MIN(expiration, idle_expiration); | |
7592 | } | |
254750ce BP |
7593 | if (expiration == LLONG_MAX) { |
7594 | return 0; | |
7595 | } | |
7596 | ||
7597 | /* Calculate the time of expiration as a number of (approximate) seconds | |
7598 | * after program startup. | |
7599 | * | |
7600 | * This should work OK for program runs that last UINT32_MAX seconds or | |
7601 | * less. Therefore, please restart OVS at least once every 136 years. */ | |
f70b94de | 7602 | uint32_t expiration_ofs = (expiration >> 10) - (time_boot_msec() >> 10); |
254750ce | 7603 | |
f70b94de BP |
7604 | /* Combine expiration time with OpenFlow "importance" to form a single |
7605 | * priority value. We want flows with relatively low "importance" to be | |
7606 | * evicted before even considering expiration time, so put "importance" in | |
7607 | * the most significant bits and expiration time in the least significant | |
7608 | * bits. | |
7609 | * | |
7610 | * Small 'priority' should be evicted before those with large 'priority'. | |
7611 | * The caller expects the opposite convention (a large return value being | |
7612 | * more attractive for eviction) so we invert it before returning. */ | |
7613 | uint64_t priority = ((uint64_t) rule->importance << 32) + expiration_ofs; | |
7614 | return UINT64_MAX - priority; | |
254750ce BP |
7615 | } |
7616 | ||
7617 | /* Adds 'rule' to an appropriate eviction group for its oftable's | |
7618 | * configuration. Does nothing if 'rule''s oftable doesn't have eviction | |
7619 | * enabled, or if 'rule' is a permanent rule (one that will never expire on its | |
7620 | * own). | |
7621 | * | |
7622 | * The caller must ensure that 'rule' is not already in an eviction group. */ | |
7623 | static void | |
7624 | eviction_group_add_rule(struct rule *rule) | |
15aaf599 | 7625 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
7626 | { |
7627 | struct ofproto *ofproto = rule->ofproto; | |
7628 | struct oftable *table = &ofproto->tables[rule->table_id]; | |
a3779dbc | 7629 | bool has_timeout; |
254750ce | 7630 | |
dc437090 JR |
7631 | /* Timeouts may be modified only when holding 'ofproto_mutex'. We have it |
7632 | * so no additional protection is needed. */ | |
a3779dbc | 7633 | has_timeout = rule->hard_timeout || rule->idle_timeout; |
a3779dbc | 7634 | |
82c22d34 | 7635 | if (table->eviction && has_timeout) { |
254750ce BP |
7636 | struct eviction_group *evg; |
7637 | ||
7638 | evg = eviction_group_find(table, eviction_group_hash_rule(rule)); | |
7639 | ||
7640 | rule->eviction_group = evg; | |
7641 | heap_insert(&evg->rules, &rule->evg_node, | |
dc437090 | 7642 | rule_eviction_priority(ofproto, rule)); |
254750ce BP |
7643 | eviction_group_resized(table, evg); |
7644 | } | |
7645 | } | |
7646 | \f | |
d0918789 BP |
7647 | /* oftables. */ |
7648 | ||
7649 | /* Initializes 'table'. */ | |
7650 | static void | |
7651 | oftable_init(struct oftable *table) | |
7652 | { | |
5c67e4af | 7653 | memset(table, 0, sizeof *table); |
d70e8c28 | 7654 | classifier_init(&table->cls, flow_segment_u64s); |
ec1c5c7e | 7655 | table->max_flows = UINT_MAX; |
d79e3d70 | 7656 | table->n_flows = 0; |
82c22d34 BP |
7657 | hmap_init(&table->eviction_groups_by_id); |
7658 | heap_init(&table->eviction_groups_by_size); | |
3c1bb396 | 7659 | atomic_init(&table->miss_config, OFPUTIL_TABLE_MISS_DEFAULT); |
f017d986 | 7660 | |
f017d986 JR |
7661 | classifier_set_prefix_fields(&table->cls, default_prefix_fields, |
7662 | ARRAY_SIZE(default_prefix_fields)); | |
d611866c SH |
7663 | |
7664 | atomic_init(&table->n_matched, 0); | |
7665 | atomic_init(&table->n_missed, 0); | |
d0918789 BP |
7666 | } |
7667 | ||
254750ce | 7668 | /* Destroys 'table', including its classifier and eviction groups. |
d0918789 BP |
7669 | * |
7670 | * The caller is responsible for freeing 'table' itself. */ | |
7671 | static void | |
7672 | oftable_destroy(struct oftable *table) | |
7673 | { | |
cb22974d | 7674 | ovs_assert(classifier_is_empty(&table->cls)); |
82c22d34 | 7675 | |
7394b8fb | 7676 | ovs_mutex_lock(&ofproto_mutex); |
82c22d34 | 7677 | oftable_configure_eviction(table, 0, NULL, 0); |
7394b8fb | 7678 | ovs_mutex_unlock(&ofproto_mutex); |
82c22d34 BP |
7679 | |
7680 | hmap_destroy(&table->eviction_groups_by_id); | |
7681 | heap_destroy(&table->eviction_groups_by_size); | |
d0918789 | 7682 | classifier_destroy(&table->cls); |
254750ce BP |
7683 | free(table->name); |
7684 | } | |
7685 | ||
7686 | /* Changes the name of 'table' to 'name'. If 'name' is NULL or the empty | |
7687 | * string, then 'table' will use its default name. | |
7688 | * | |
7689 | * This only affects the name exposed for a table exposed through the OpenFlow | |
7690 | * OFPST_TABLE (as printed by "ovs-ofctl dump-tables"). */ | |
7691 | static void | |
7692 | oftable_set_name(struct oftable *table, const char *name) | |
7693 | { | |
7694 | if (name && name[0]) { | |
7695 | int len = strnlen(name, OFP_MAX_TABLE_NAME_LEN); | |
7696 | if (!table->name || strncmp(name, table->name, len)) { | |
7697 | free(table->name); | |
7698 | table->name = xmemdup0(name, len); | |
7699 | } | |
7700 | } else { | |
7701 | free(table->name); | |
7702 | table->name = NULL; | |
7703 | } | |
7704 | } | |
7705 | ||
254750ce BP |
7706 | /* oftables support a choice of two policies when adding a rule would cause the |
7707 | * number of flows in the table to exceed the configured maximum number: either | |
7708 | * they can refuse to add the new flow or they can evict some existing flow. | |
7709 | * This function configures the latter policy on 'table', with fairness based | |
7710 | * on the values of the 'n_fields' fields specified in 'fields'. (Specifying | |
7711 | * 'n_fields' as 0 disables fairness.) */ | |
7712 | static void | |
82c22d34 BP |
7713 | oftable_configure_eviction(struct oftable *table, unsigned int eviction, |
7714 | const struct mf_subfield *fields, size_t n_fields) | |
15aaf599 | 7715 | OVS_REQUIRES(ofproto_mutex) |
254750ce | 7716 | { |
254750ce BP |
7717 | struct rule *rule; |
7718 | ||
82c22d34 | 7719 | if ((table->eviction != 0) == (eviction != 0) |
254750ce BP |
7720 | && n_fields == table->n_eviction_fields |
7721 | && (!n_fields | |
7722 | || !memcmp(fields, table->eviction_fields, | |
7723 | n_fields * sizeof *fields))) { | |
82c22d34 BP |
7724 | /* The set of eviction fields did not change. If 'eviction' changed, |
7725 | * it remains nonzero, so that we can just update table->eviction | |
7726 | * without fussing with the eviction groups. */ | |
7727 | table->eviction = eviction; | |
254750ce BP |
7728 | return; |
7729 | } | |
7730 | ||
82c22d34 BP |
7731 | /* Destroy existing eviction groups, then destroy and recreate data |
7732 | * structures to recover memory. */ | |
7733 | struct eviction_group *evg, *next; | |
7734 | HMAP_FOR_EACH_SAFE (evg, next, id_node, &table->eviction_groups_by_id) { | |
7735 | eviction_group_destroy(table, evg); | |
7736 | } | |
7737 | hmap_destroy(&table->eviction_groups_by_id); | |
254750ce | 7738 | hmap_init(&table->eviction_groups_by_id); |
82c22d34 | 7739 | heap_destroy(&table->eviction_groups_by_size); |
254750ce BP |
7740 | heap_init(&table->eviction_groups_by_size); |
7741 | ||
82c22d34 BP |
7742 | /* Replace eviction groups by the new ones, if there is a change. Free the |
7743 | * old fields only after allocating the new ones, because 'fields == | |
7744 | * table->eviction_fields' is possible. */ | |
7745 | struct mf_subfield *old_fields = table->eviction_fields; | |
7746 | table->n_eviction_fields = n_fields; | |
7747 | table->eviction_fields = (fields | |
7748 | ? xmemdup(fields, n_fields * sizeof *fields) | |
7749 | : NULL); | |
7750 | free(old_fields); | |
7751 | ||
7752 | /* Add the new eviction groups, if enabled. */ | |
7753 | table->eviction = eviction; | |
7754 | if (table->eviction) { | |
7755 | table->eviction_group_id_basis = random_uint32(); | |
7756 | CLS_FOR_EACH (rule, cr, &table->cls) { | |
7757 | eviction_group_add_rule(rule); | |
7758 | } | |
254750ce | 7759 | } |
d0918789 BP |
7760 | } |
7761 | ||
bc5e6a91 JR |
7762 | /* Inserts 'rule' from the ofproto data structures BEFORE caller has inserted |
7763 | * it to the classifier. */ | |
7764 | static void | |
7765 | ofproto_rule_insert__(struct ofproto *ofproto, struct rule *rule) | |
7766 | OVS_REQUIRES(ofproto_mutex) | |
7767 | { | |
7768 | const struct rule_actions *actions = rule_get_actions(rule); | |
7769 | ||
39c94593 JR |
7770 | ovs_assert(rule->removed); |
7771 | ||
bc5e6a91 JR |
7772 | if (rule->hard_timeout || rule->idle_timeout) { |
7773 | list_insert(&ofproto->expirable, &rule->expirable); | |
7774 | } | |
7775 | cookies_insert(ofproto, rule); | |
7776 | eviction_group_add_rule(rule); | |
7777 | if (actions->has_meter) { | |
7778 | meter_insert_rule(rule); | |
7779 | } | |
39c94593 | 7780 | rule->removed = false; |
bc5e6a91 JR |
7781 | } |
7782 | ||
6787a49f JR |
7783 | /* Removes 'rule' from the ofproto data structures. Caller may have deferred |
7784 | * the removal from the classifier. */ | |
d0918789 | 7785 | static void |
802f84ff | 7786 | ofproto_rule_remove__(struct ofproto *ofproto, struct rule *rule) |
15aaf599 | 7787 | OVS_REQUIRES(ofproto_mutex) |
d0918789 | 7788 | { |
39c94593 JR |
7789 | ovs_assert(!rule->removed); |
7790 | ||
98eaac36 | 7791 | cookies_remove(ofproto, rule); |
2c916028 | 7792 | |
254750ce | 7793 | eviction_group_remove_rule(rule); |
e503cc19 SH |
7794 | if (!list_is_empty(&rule->expirable)) { |
7795 | list_remove(&rule->expirable); | |
7796 | } | |
9cae45dc JR |
7797 | if (!list_is_empty(&rule->meter_list_node)) { |
7798 | list_remove(&rule->meter_list_node); | |
51b50dfd | 7799 | list_init(&rule->meter_list_node); |
9cae45dc | 7800 | } |
802f84ff | 7801 | |
39c94593 | 7802 | rule->removed = true; |
0b4f2078 | 7803 | } |
d0918789 | 7804 | \f |
abe529af | 7805 | /* unixctl commands. */ |
7aa697dd | 7806 | |
abe529af | 7807 | struct ofproto * |
2ac6bedd | 7808 | ofproto_lookup(const char *name) |
7aa697dd | 7809 | { |
2ac6bedd | 7810 | struct ofproto *ofproto; |
7aa697dd | 7811 | |
2ac6bedd BP |
7812 | HMAP_FOR_EACH_WITH_HASH (ofproto, hmap_node, hash_string(name, 0), |
7813 | &all_ofprotos) { | |
7814 | if (!strcmp(ofproto->name, name)) { | |
7815 | return ofproto; | |
7816 | } | |
7aa697dd | 7817 | } |
2ac6bedd | 7818 | return NULL; |
7aa697dd BP |
7819 | } |
7820 | ||
7821 | static void | |
0e15264f BP |
7822 | ofproto_unixctl_list(struct unixctl_conn *conn, int argc OVS_UNUSED, |
7823 | const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED) | |
7aa697dd | 7824 | { |
7aa697dd | 7825 | struct ofproto *ofproto; |
7aa697dd | 7826 | struct ds results; |
7aa697dd | 7827 | |
7aa697dd | 7828 | ds_init(&results); |
2ac6bedd BP |
7829 | HMAP_FOR_EACH (ofproto, hmap_node, &all_ofprotos) { |
7830 | ds_put_format(&results, "%s\n", ofproto->name); | |
7aa697dd | 7831 | } |
bde9f75d | 7832 | unixctl_command_reply(conn, ds_cstr(&results)); |
7aa697dd | 7833 | ds_destroy(&results); |
7aa697dd BP |
7834 | } |
7835 | ||
7836 | static void | |
7837 | ofproto_unixctl_init(void) | |
7838 | { | |
7839 | static bool registered; | |
7840 | if (registered) { | |
7841 | return; | |
7842 | } | |
7843 | registered = true; | |
7844 | ||
0e15264f BP |
7845 | unixctl_command_register("ofproto/list", "", 0, 0, |
7846 | ofproto_unixctl_list, NULL); | |
064af421 | 7847 | } |
52a90c29 BP |
7848 | \f |
7849 | /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.) | |
7850 | * | |
7851 | * This is deprecated. It is only for compatibility with broken device drivers | |
7852 | * in old versions of Linux that do not properly support VLANs when VLAN | |
7853 | * devices are not used. When broken device drivers are no longer in | |
7854 | * widespread use, we will delete these interfaces. */ | |
7855 | ||
7856 | /* Sets a 1-bit in the 4096-bit 'vlan_bitmap' for each VLAN ID that is matched | |
7857 | * (exactly) by an OpenFlow rule in 'ofproto'. */ | |
7858 | void | |
7859 | ofproto_get_vlan_usage(struct ofproto *ofproto, unsigned long int *vlan_bitmap) | |
7860 | { | |
ac4aa4c8 JR |
7861 | struct match match; |
7862 | struct cls_rule target; | |
d0918789 | 7863 | const struct oftable *oftable; |
52a90c29 | 7864 | |
ac4aa4c8 JR |
7865 | match_init_catchall(&match); |
7866 | match_set_vlan_vid_masked(&match, htons(VLAN_CFI), htons(VLAN_CFI)); | |
bd53aa17 | 7867 | cls_rule_init(&target, &match, 0); |
ac4aa4c8 | 7868 | |
52a90c29 BP |
7869 | free(ofproto->vlan_bitmap); |
7870 | ofproto->vlan_bitmap = bitmap_allocate(4096); | |
7871 | ofproto->vlans_changed = false; | |
7872 | ||
d0918789 | 7873 | OFPROTO_FOR_EACH_TABLE (oftable, ofproto) { |
ac4aa4c8 | 7874 | struct rule *rule; |
52a90c29 | 7875 | |
bd53aa17 JR |
7876 | CLS_FOR_EACH_TARGET (rule, cr, &oftable->cls, &target, |
7877 | CLS_MAX_VERSION) { | |
8fd47924 JR |
7878 | if (minimask_get_vid_mask(rule->cr.match.mask) == VLAN_VID_MASK) { |
7879 | uint16_t vid = miniflow_get_vid(rule->cr.match.flow); | |
ac4aa4c8 JR |
7880 | |
7881 | bitmap_set1(vlan_bitmap, vid); | |
7882 | bitmap_set1(ofproto->vlan_bitmap, vid); | |
52a90c29 BP |
7883 | } |
7884 | } | |
7885 | } | |
059ef3c6 EJ |
7886 | |
7887 | cls_rule_destroy(&target); | |
52a90c29 BP |
7888 | } |
7889 | ||
7890 | /* Returns true if new VLANs have come into use by the flow table since the | |
7891 | * last call to ofproto_get_vlan_usage(). | |
7892 | * | |
7893 | * We don't track when old VLANs stop being used. */ | |
7894 | bool | |
7895 | ofproto_has_vlan_usage_changed(const struct ofproto *ofproto) | |
7896 | { | |
7897 | return ofproto->vlans_changed; | |
7898 | } | |
7899 | ||
7900 | /* Configures a VLAN splinter binding between the ports identified by OpenFlow | |
7901 | * port numbers 'vlandev_ofp_port' and 'realdev_ofp_port'. If | |
7902 | * 'realdev_ofp_port' is nonzero, then the VLAN device is enslaved to the real | |
7903 | * device as a VLAN splinter for VLAN ID 'vid'. If 'realdev_ofp_port' is zero, | |
7904 | * then the VLAN device is un-enslaved. */ | |
7905 | int | |
4e022ec0 AW |
7906 | ofproto_port_set_realdev(struct ofproto *ofproto, ofp_port_t vlandev_ofp_port, |
7907 | ofp_port_t realdev_ofp_port, int vid) | |
52a90c29 BP |
7908 | { |
7909 | struct ofport *ofport; | |
7910 | int error; | |
7911 | ||
cb22974d | 7912 | ovs_assert(vlandev_ofp_port != realdev_ofp_port); |
52a90c29 BP |
7913 | |
7914 | ofport = ofproto_get_port(ofproto, vlandev_ofp_port); | |
7915 | if (!ofport) { | |
7916 | VLOG_WARN("%s: cannot set realdev on nonexistent port %"PRIu16, | |
7917 | ofproto->name, vlandev_ofp_port); | |
7918 | return EINVAL; | |
7919 | } | |
7920 | ||
7921 | if (!ofproto->ofproto_class->set_realdev) { | |
7922 | if (!vlandev_ofp_port) { | |
7923 | return 0; | |
7924 | } | |
7925 | VLOG_WARN("%s: vlan splinters not supported", ofproto->name); | |
7926 | return EOPNOTSUPP; | |
7927 | } | |
7928 | ||
7929 | error = ofproto->ofproto_class->set_realdev(ofport, realdev_ofp_port, vid); | |
7930 | if (error) { | |
7931 | VLOG_WARN("%s: setting realdev on port %"PRIu16" (%s) failed (%s)", | |
7932 | ofproto->name, vlandev_ofp_port, | |
10a89ef0 | 7933 | netdev_get_name(ofport->netdev), ovs_strerror(error)); |
52a90c29 BP |
7934 | } |
7935 | return error; | |
7936 | } |