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064af421 | 1 | /* |
3fbbcba7 | 2 | * Copyright (c) 2009-2015 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" |
c4617b3c | 59 | #include "unaligned.h" |
4f2cad2c | 60 | #include "unixctl.h" |
e6211adc | 61 | #include "openvswitch/vlog.h" |
777af88d | 62 | #include "bundles.h" |
064af421 | 63 | |
d98e6007 | 64 | VLOG_DEFINE_THIS_MODULE(ofproto); |
064af421 | 65 | |
d76f09ea | 66 | COVERAGE_DEFINE(ofproto_flush); |
d76f09ea BP |
67 | COVERAGE_DEFINE(ofproto_packet_out); |
68 | COVERAGE_DEFINE(ofproto_queue_req); | |
69 | COVERAGE_DEFINE(ofproto_recv_openflow); | |
70 | COVERAGE_DEFINE(ofproto_reinit_ports); | |
d76f09ea BP |
71 | COVERAGE_DEFINE(ofproto_update_port); |
72 | ||
f017d986 JR |
73 | /* Default fields to use for prefix tries in each flow table, unless something |
74 | * else is configured. */ | |
75 | const enum mf_field_id default_prefix_fields[2] = | |
76 | { MFF_IPV4_DST, MFF_IPV4_SRC }; | |
77 | ||
d0918789 BP |
78 | /* oftable. */ |
79 | static void oftable_init(struct oftable *); | |
80 | static void oftable_destroy(struct oftable *); | |
878ae780 | 81 | |
254750ce BP |
82 | static void oftable_set_name(struct oftable *, const char *name); |
83 | ||
834fe5cb BP |
84 | static enum ofperr evict_rules_from_table(struct oftable *, |
85 | unsigned int extra_space) | |
86 | OVS_REQUIRES(ofproto_mutex); | |
254750ce BP |
87 | static void oftable_disable_eviction(struct oftable *); |
88 | static void oftable_enable_eviction(struct oftable *, | |
89 | const struct mf_subfield *fields, | |
90 | size_t n_fields); | |
91 | ||
15aaf599 | 92 | static void oftable_remove_rule(struct rule *rule) OVS_REQUIRES(ofproto_mutex); |
064af421 | 93 | |
254750ce BP |
94 | /* A set of rules within a single OpenFlow table (oftable) that have the same |
95 | * values for the oftable's eviction_fields. A rule to be evicted, when one is | |
96 | * needed, is taken from the eviction group that contains the greatest number | |
97 | * of rules. | |
98 | * | |
99 | * An oftable owns any number of eviction groups, each of which contains any | |
100 | * number of rules. | |
101 | * | |
102 | * Membership in an eviction group is imprecise, based on the hash of the | |
103 | * oftable's eviction_fields (in the eviction_group's id_node.hash member). | |
104 | * That is, if two rules have different eviction_fields, but those | |
105 | * eviction_fields hash to the same value, then they will belong to the same | |
106 | * eviction_group anyway. | |
107 | * | |
108 | * (When eviction is not enabled on an oftable, we don't track any eviction | |
109 | * groups, to save time and space.) */ | |
110 | struct eviction_group { | |
111 | struct hmap_node id_node; /* In oftable's "eviction_groups_by_id". */ | |
112 | struct heap_node size_node; /* In oftable's "eviction_groups_by_size". */ | |
113 | struct heap rules; /* Contains "struct rule"s. */ | |
114 | }; | |
115 | ||
3d900aa7 BP |
116 | static bool choose_rule_to_evict(struct oftable *table, struct rule **rulep) |
117 | OVS_REQUIRES(ofproto_mutex); | |
3d900aa7 BP |
118 | static uint32_t rule_eviction_priority(struct ofproto *ofproto, struct rule *) |
119 | OVS_REQUIRES(ofproto_mutex);; | |
120 | static void eviction_group_add_rule(struct rule *) | |
121 | OVS_REQUIRES(ofproto_mutex); | |
122 | static void eviction_group_remove_rule(struct rule *) | |
123 | OVS_REQUIRES(ofproto_mutex); | |
f29152ca | 124 | |
a9b22b7f BP |
125 | /* Criteria that flow_mod and other operations use for selecting rules on |
126 | * which to operate. */ | |
127 | struct rule_criteria { | |
128 | /* An OpenFlow table or 255 for all tables. */ | |
129 | uint8_t table_id; | |
130 | ||
131 | /* OpenFlow matching criteria. Interpreted different in "loose" way by | |
132 | * collect_rules_loose() and "strict" way by collect_rules_strict(), as | |
133 | * defined in the OpenFlow spec. */ | |
134 | struct cls_rule cr; | |
135 | ||
136 | /* Matching criteria for the OpenFlow cookie. Consider a bit B in a rule's | |
137 | * cookie and the corresponding bits C in 'cookie' and M in 'cookie_mask'. | |
138 | * The rule will not be selected if M is 1 and B != C. */ | |
139 | ovs_be64 cookie; | |
140 | ovs_be64 cookie_mask; | |
141 | ||
142 | /* Selection based on actions within a rule: | |
143 | * | |
144 | * If out_port != OFPP_ANY, selects only rules that output to out_port. | |
145 | * If out_group != OFPG_ALL, select only rules that output to out_group. */ | |
146 | ofp_port_t out_port; | |
147 | uint32_t out_group; | |
dd51dae2 BP |
148 | |
149 | /* If true, collects only rules that are modifiable. */ | |
150 | bool include_hidden; | |
151 | bool include_readonly; | |
a9b22b7f BP |
152 | }; |
153 | ||
154 | static void rule_criteria_init(struct rule_criteria *, uint8_t table_id, | |
eb391b76 | 155 | const struct match *match, int priority, |
a9b22b7f BP |
156 | ovs_be64 cookie, ovs_be64 cookie_mask, |
157 | ofp_port_t out_port, uint32_t out_group); | |
dd51dae2 BP |
158 | static void rule_criteria_require_rw(struct rule_criteria *, |
159 | bool can_write_readonly); | |
a9b22b7f BP |
160 | static void rule_criteria_destroy(struct rule_criteria *); |
161 | ||
35f48b8b BP |
162 | static enum ofperr collect_rules_loose(struct ofproto *, |
163 | const struct rule_criteria *, | |
164 | struct rule_collection *); | |
165 | ||
15aaf599 BP |
166 | /* A packet that needs to be passed to rule_execute(). |
167 | * | |
168 | * (We can't do this immediately from ofopgroup_complete() because that holds | |
169 | * ofproto_mutex, which rule_execute() needs released.) */ | |
35412852 | 170 | struct rule_execute { |
ca6ba700 | 171 | struct ovs_list list_node; /* In struct ofproto's "rule_executes" list. */ |
35412852 BP |
172 | struct rule *rule; /* Owns a reference to the rule. */ |
173 | ofp_port_t in_port; | |
cf62fa4c | 174 | struct dp_packet *packet; /* Owns the packet. */ |
35412852 BP |
175 | }; |
176 | ||
15aaf599 | 177 | static void run_rule_executes(struct ofproto *) OVS_EXCLUDED(ofproto_mutex); |
35412852 BP |
178 | static void destroy_rule_executes(struct ofproto *); |
179 | ||
35f48b8b BP |
180 | struct learned_cookie { |
181 | union { | |
182 | /* In struct ofproto's 'learned_cookies' hmap. */ | |
183 | struct hmap_node hmap_node OVS_GUARDED_BY(ofproto_mutex); | |
184 | ||
185 | /* In 'dead_cookies' list when removed from hmap. */ | |
ca6ba700 | 186 | struct ovs_list list_node; |
35f48b8b BP |
187 | } u; |
188 | ||
189 | /* Key. */ | |
190 | ovs_be64 cookie OVS_GUARDED_BY(ofproto_mutex); | |
191 | uint8_t table_id OVS_GUARDED_BY(ofproto_mutex); | |
192 | ||
193 | /* Number of references from "learn" actions. | |
194 | * | |
195 | * When this drops to 0, all of the flows in 'table_id' with the specified | |
196 | * 'cookie' are deleted. */ | |
197 | int n OVS_GUARDED_BY(ofproto_mutex); | |
198 | }; | |
199 | ||
200 | static const struct ofpact_learn *next_learn_with_delete( | |
201 | const struct rule_actions *, const struct ofpact_learn *start); | |
202 | ||
203 | static void learned_cookies_inc(struct ofproto *, const struct rule_actions *) | |
204 | OVS_REQUIRES(ofproto_mutex); | |
205 | static void learned_cookies_dec(struct ofproto *, const struct rule_actions *, | |
ca6ba700 | 206 | struct ovs_list *dead_cookies) |
35f48b8b | 207 | OVS_REQUIRES(ofproto_mutex); |
ca6ba700 | 208 | static void learned_cookies_flush(struct ofproto *, struct ovs_list *dead_cookies) |
35f48b8b BP |
209 | OVS_REQUIRES(ofproto_mutex); |
210 | ||
d0918789 | 211 | /* ofport. */ |
15aaf599 | 212 | static void ofport_destroy__(struct ofport *) OVS_EXCLUDED(ofproto_mutex); |
d0918789 BP |
213 | static void ofport_destroy(struct ofport *); |
214 | ||
215 | static void update_port(struct ofproto *, const char *devname); | |
216 | static int init_ports(struct ofproto *); | |
217 | static void reinit_ports(struct ofproto *); | |
7ee20df1 | 218 | |
fdcea803 GS |
219 | static long long int ofport_get_usage(const struct ofproto *, |
220 | ofp_port_t ofp_port); | |
221 | static void ofport_set_usage(struct ofproto *, ofp_port_t ofp_port, | |
222 | long long int last_used); | |
865b26a4 | 223 | static void ofport_remove_usage(struct ofproto *, ofp_port_t ofp_port); |
fdcea803 GS |
224 | |
225 | /* Ofport usage. | |
226 | * | |
227 | * Keeps track of the currently used and recently used ofport values and is | |
228 | * used to prevent immediate recycling of ofport values. */ | |
229 | struct ofport_usage { | |
230 | struct hmap_node hmap_node; /* In struct ofproto's "ofport_usage" hmap. */ | |
231 | ofp_port_t ofp_port; /* OpenFlow port number. */ | |
232 | long long int last_used; /* Last time the 'ofp_port' was used. LLONG_MAX | |
233 | represents in-use ofports. */ | |
234 | }; | |
235 | ||
254750ce | 236 | /* rule. */ |
254750ce | 237 | static void ofproto_rule_send_removed(struct rule *, uint8_t reason); |
834fe5cb | 238 | static bool rule_is_readonly(const struct rule *); |
802f84ff JR |
239 | static void ofproto_rule_remove__(struct ofproto *, struct rule *) |
240 | OVS_REQUIRES(ofproto_mutex); | |
254750ce | 241 | |
baae3d02 BP |
242 | /* The source of a flow_mod request, in the code that processes flow_mods. |
243 | * | |
244 | * A flow table modification request can be generated externally, via OpenFlow, | |
245 | * or internally through a function call. This structure indicates the source | |
246 | * of an OpenFlow-generated flow_mod. For an internal flow_mod, it isn't | |
247 | * meaningful and thus supplied as NULL. */ | |
248 | struct flow_mod_requester { | |
249 | struct ofconn *ofconn; /* Connection on which flow_mod arrived. */ | |
834fe5cb | 250 | ovs_be32 xid; /* OpenFlow xid of flow_mod request. */ |
baae3d02 BP |
251 | }; |
252 | ||
d0918789 | 253 | /* OpenFlow. */ |
baae3d02 BP |
254 | static enum ofperr add_flow(struct ofproto *, struct ofputil_flow_mod *, |
255 | const struct flow_mod_requester *); | |
256 | ||
257 | static enum ofperr modify_flows__(struct ofproto *, struct ofputil_flow_mod *, | |
258 | const struct rule_collection *, | |
259 | const struct flow_mod_requester *); | |
9ca4a86f BP |
260 | static void delete_flows__(const struct rule_collection *, |
261 | enum ofp_flow_removed_reason, | |
262 | const struct flow_mod_requester *) | |
15aaf599 | 263 | OVS_REQUIRES(ofproto_mutex); |
834fe5cb BP |
264 | |
265 | static enum ofperr send_buffered_packet(struct ofconn *, uint32_t buffer_id, | |
266 | struct rule *) | |
267 | OVS_REQUIRES(ofproto_mutex); | |
268 | ||
7e9f8266 BP |
269 | static bool ofproto_group_exists__(const struct ofproto *ofproto, |
270 | uint32_t group_id) | |
271 | OVS_REQ_RDLOCK(ofproto->groups_rwlock); | |
84d68566 SH |
272 | static bool ofproto_group_exists(const struct ofproto *ofproto, |
273 | uint32_t group_id) | |
7e9f8266 | 274 | OVS_EXCLUDED(ofproto->groups_rwlock); |
7395c052 | 275 | static enum ofperr add_group(struct ofproto *, struct ofputil_group_mod *); |
b20f4073 | 276 | static void handle_openflow(struct ofconn *, const struct ofpbuf *); |
baae3d02 | 277 | static enum ofperr handle_flow_mod__(struct ofproto *, |
e3b56933 | 278 | struct ofputil_flow_mod *, |
baae3d02 | 279 | const struct flow_mod_requester *) |
15aaf599 | 280 | OVS_EXCLUDED(ofproto_mutex); |
65e0be10 BP |
281 | static void calc_duration(long long int start, long long int now, |
282 | uint32_t *sec, uint32_t *nsec); | |
f29152ca | 283 | |
d0918789 BP |
284 | /* ofproto. */ |
285 | static uint64_t pick_datapath_id(const struct ofproto *); | |
286 | static uint64_t pick_fallback_dpid(void); | |
287 | static void ofproto_destroy__(struct ofproto *); | |
ada3428f | 288 | static void update_mtu(struct ofproto *, struct ofport *); |
6b3f7f02 | 289 | static void meter_delete(struct ofproto *, uint32_t first, uint32_t last); |
062fea06 | 290 | static void meter_insert_rule(struct rule *); |
f29152ca | 291 | |
d0918789 | 292 | /* unixctl. */ |
abe529af | 293 | static void ofproto_unixctl_init(void); |
f29152ca | 294 | |
abe529af BP |
295 | /* All registered ofproto classes, in probe order. */ |
296 | static const struct ofproto_class **ofproto_classes; | |
297 | static size_t n_ofproto_classes; | |
298 | static size_t allocated_ofproto_classes; | |
7aa697dd | 299 | |
15aaf599 BP |
300 | /* Global lock that protects all flow table operations. */ |
301 | struct ovs_mutex ofproto_mutex = OVS_MUTEX_INITIALIZER; | |
abe7b10f | 302 | |
e79a6c83 | 303 | unsigned ofproto_flow_limit = OFPROTO_FLOW_LIMIT_DEFAULT; |
72310b04 | 304 | unsigned ofproto_max_idle = OFPROTO_MAX_IDLE_DEFAULT; |
380f49c4 | 305 | |
e79a6c83 | 306 | size_t n_handlers, n_revalidators; |
f2eee189 AW |
307 | size_t n_dpdk_rxqs; |
308 | char *pmd_cpu_mask; | |
6567010f | 309 | |
f797957a | 310 | /* Map from datapath name to struct ofproto, for use by unixctl commands. */ |
abe529af | 311 | static struct hmap all_ofprotos = HMAP_INITIALIZER(&all_ofprotos); |
ebe482fd | 312 | |
e1b1d06a JP |
313 | /* Initial mappings of port to OpenFlow number mappings. */ |
314 | static struct shash init_ofp_ports = SHASH_INITIALIZER(&init_ofp_ports); | |
315 | ||
abe529af | 316 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); |
f29152ca | 317 | |
40358701 GS |
318 | /* The default value of true waits for flow restore. */ |
319 | static bool flow_restore_wait = true; | |
320 | ||
b0408fca JP |
321 | /* Must be called to initialize the ofproto library. |
322 | * | |
323 | * The caller may pass in 'iface_hints', which contains an shash of | |
324 | * "iface_hint" elements indexed by the interface's name. The provider | |
325 | * may use these hints to describe the startup configuration in order to | |
326 | * reinitialize its state. The caller owns the provided data, so a | |
327 | * provider will make copies of anything required. An ofproto provider | |
328 | * will remove any existing state that is not described by the hint, and | |
329 | * may choose to remove it all. */ | |
330 | void | |
331 | ofproto_init(const struct shash *iface_hints) | |
abe529af | 332 | { |
e1b1d06a | 333 | struct shash_node *node; |
b0408fca | 334 | size_t i; |
f29152ca | 335 | |
b0408fca JP |
336 | ofproto_class_register(&ofproto_dpif_class); |
337 | ||
e1b1d06a JP |
338 | /* Make a local copy, since we don't own 'iface_hints' elements. */ |
339 | SHASH_FOR_EACH(node, iface_hints) { | |
340 | const struct iface_hint *orig_hint = node->data; | |
341 | struct iface_hint *new_hint = xmalloc(sizeof *new_hint); | |
342 | const char *br_type = ofproto_normalize_type(orig_hint->br_type); | |
343 | ||
344 | new_hint->br_name = xstrdup(orig_hint->br_name); | |
345 | new_hint->br_type = xstrdup(br_type); | |
346 | new_hint->ofp_port = orig_hint->ofp_port; | |
347 | ||
348 | shash_add(&init_ofp_ports, node->name, new_hint); | |
349 | } | |
350 | ||
b0408fca | 351 | for (i = 0; i < n_ofproto_classes; i++) { |
e1b1d06a | 352 | ofproto_classes[i]->init(&init_ofp_ports); |
abe529af BP |
353 | } |
354 | } | |
f29152ca | 355 | |
abe529af BP |
356 | /* 'type' should be a normalized datapath type, as returned by |
357 | * ofproto_normalize_type(). Returns the corresponding ofproto_class | |
358 | * structure, or a null pointer if there is none registered for 'type'. */ | |
359 | static const struct ofproto_class * | |
360 | ofproto_class_find__(const char *type) | |
361 | { | |
362 | size_t i; | |
f29152ca | 363 | |
abe529af BP |
364 | for (i = 0; i < n_ofproto_classes; i++) { |
365 | const struct ofproto_class *class = ofproto_classes[i]; | |
366 | struct sset types; | |
367 | bool found; | |
064af421 | 368 | |
abe529af BP |
369 | sset_init(&types); |
370 | class->enumerate_types(&types); | |
371 | found = sset_contains(&types, type); | |
372 | sset_destroy(&types); | |
bcf84111 | 373 | |
abe529af BP |
374 | if (found) { |
375 | return class; | |
376 | } | |
377 | } | |
378 | VLOG_WARN("unknown datapath type %s", type); | |
379 | return NULL; | |
380 | } | |
064af421 | 381 | |
abe529af BP |
382 | /* Registers a new ofproto class. After successful registration, new ofprotos |
383 | * of that type can be created using ofproto_create(). */ | |
384 | int | |
385 | ofproto_class_register(const struct ofproto_class *new_class) | |
386 | { | |
387 | size_t i; | |
7aa697dd | 388 | |
abe529af BP |
389 | for (i = 0; i < n_ofproto_classes; i++) { |
390 | if (ofproto_classes[i] == new_class) { | |
391 | return EEXIST; | |
392 | } | |
393 | } | |
064af421 | 394 | |
abe529af BP |
395 | if (n_ofproto_classes >= allocated_ofproto_classes) { |
396 | ofproto_classes = x2nrealloc(ofproto_classes, | |
397 | &allocated_ofproto_classes, | |
398 | sizeof *ofproto_classes); | |
399 | } | |
400 | ofproto_classes[n_ofproto_classes++] = new_class; | |
401 | return 0; | |
402 | } | |
064af421 | 403 | |
abe529af BP |
404 | /* Unregisters a datapath provider. 'type' must have been previously |
405 | * registered and not currently be in use by any ofprotos. After | |
406 | * unregistration new datapaths of that type cannot be opened using | |
407 | * ofproto_create(). */ | |
408 | int | |
409 | ofproto_class_unregister(const struct ofproto_class *class) | |
410 | { | |
411 | size_t i; | |
76ce9432 | 412 | |
abe529af BP |
413 | for (i = 0; i < n_ofproto_classes; i++) { |
414 | if (ofproto_classes[i] == class) { | |
415 | for (i++; i < n_ofproto_classes; i++) { | |
416 | ofproto_classes[i - 1] = ofproto_classes[i]; | |
417 | } | |
418 | n_ofproto_classes--; | |
419 | return 0; | |
420 | } | |
421 | } | |
422 | VLOG_WARN("attempted to unregister an ofproto class that is not " | |
423 | "registered"); | |
424 | return EAFNOSUPPORT; | |
425 | } | |
4a4cdb3b | 426 | |
f79e673f BP |
427 | /* Clears 'types' and enumerates all registered ofproto types into it. The |
428 | * caller must first initialize the sset. */ | |
429 | void | |
430 | ofproto_enumerate_types(struct sset *types) | |
431 | { | |
abe529af | 432 | size_t i; |
064af421 | 433 | |
c799c306 | 434 | sset_clear(types); |
abe529af BP |
435 | for (i = 0; i < n_ofproto_classes; i++) { |
436 | ofproto_classes[i]->enumerate_types(types); | |
437 | } | |
f79e673f | 438 | } |
064af421 | 439 | |
f79e673f BP |
440 | /* Returns the fully spelled out name for the given ofproto 'type'. |
441 | * | |
442 | * Normalized type string can be compared with strcmp(). Unnormalized type | |
443 | * string might be the same even if they have different spellings. */ | |
444 | const char * | |
445 | ofproto_normalize_type(const char *type) | |
446 | { | |
abe529af | 447 | return type && type[0] ? type : "system"; |
f79e673f | 448 | } |
064af421 | 449 | |
f79e673f BP |
450 | /* Clears 'names' and enumerates the names of all known created ofprotos with |
451 | * the given 'type'. The caller must first initialize the sset. Returns 0 if | |
452 | * successful, otherwise a positive errno value. | |
453 | * | |
454 | * Some kinds of datapaths might not be practically enumerable. This is not | |
455 | * considered an error. */ | |
456 | int | |
457 | ofproto_enumerate_names(const char *type, struct sset *names) | |
458 | { | |
abe529af BP |
459 | const struct ofproto_class *class = ofproto_class_find__(type); |
460 | return class ? class->enumerate_names(type, names) : EAFNOSUPPORT; | |
239ad7d1 | 461 | } |
7aa697dd | 462 | |
064af421 | 463 | int |
abe529af | 464 | ofproto_create(const char *datapath_name, const char *datapath_type, |
064af421 BP |
465 | struct ofproto **ofprotop) |
466 | { | |
abe529af BP |
467 | const struct ofproto_class *class; |
468 | struct ofproto *ofproto; | |
064af421 | 469 | int error; |
c2f0373a | 470 | int i; |
064af421 BP |
471 | |
472 | *ofprotop = NULL; | |
473 | ||
7aa697dd BP |
474 | ofproto_unixctl_init(); |
475 | ||
abe529af BP |
476 | datapath_type = ofproto_normalize_type(datapath_type); |
477 | class = ofproto_class_find__(datapath_type); | |
478 | if (!class) { | |
479 | VLOG_WARN("could not create datapath %s of unknown type %s", | |
480 | datapath_name, datapath_type); | |
481 | return EAFNOSUPPORT; | |
064af421 BP |
482 | } |
483 | ||
abe529af BP |
484 | ofproto = class->alloc(); |
485 | if (!ofproto) { | |
486 | VLOG_ERR("failed to allocate datapath %s of type %s", | |
487 | datapath_name, datapath_type); | |
488 | return ENOMEM; | |
489 | } | |
490 | ||
491 | /* Initialize. */ | |
abe7b10f | 492 | ovs_mutex_lock(&ofproto_mutex); |
abe529af BP |
493 | memset(ofproto, 0, sizeof *ofproto); |
494 | ofproto->ofproto_class = class; | |
495 | ofproto->name = xstrdup(datapath_name); | |
496 | ofproto->type = xstrdup(datapath_type); | |
497 | hmap_insert(&all_ofprotos, &ofproto->hmap_node, | |
498 | hash_string(ofproto->name, 0)); | |
499 | ofproto->datapath_id = 0; | |
8402c74b | 500 | ofproto->forward_bpdu = false; |
abe529af | 501 | ofproto->fallback_dpid = pick_fallback_dpid(); |
061bfea4 BP |
502 | ofproto->mfr_desc = NULL; |
503 | ofproto->hw_desc = NULL; | |
504 | ofproto->sw_desc = NULL; | |
505 | ofproto->serial_desc = NULL; | |
506 | ofproto->dp_desc = NULL; | |
7257b535 | 507 | ofproto->frag_handling = OFPC_FRAG_NORMAL; |
abe529af | 508 | hmap_init(&ofproto->ports); |
fdcea803 | 509 | hmap_init(&ofproto->ofport_usage); |
abe529af | 510 | shash_init(&ofproto->port_by_name); |
e1b1d06a | 511 | simap_init(&ofproto->ofp_requests); |
430dbb14 | 512 | ofproto->max_ports = ofp_to_u16(OFPP_MAX); |
448c2fa8 | 513 | ofproto->eviction_group_timer = LLONG_MIN; |
6c1491fb BP |
514 | ofproto->tables = NULL; |
515 | ofproto->n_tables = 0; | |
98eaac36 | 516 | hindex_init(&ofproto->cookies); |
35f48b8b | 517 | hmap_init(&ofproto->learned_cookies); |
e503cc19 | 518 | list_init(&ofproto->expirable); |
abe529af | 519 | ofproto->connmgr = connmgr_create(ofproto, datapath_name, datapath_name); |
35412852 | 520 | guarded_list_init(&ofproto->rule_executes); |
52a90c29 BP |
521 | ofproto->vlan_bitmap = NULL; |
522 | ofproto->vlans_changed = false; | |
ada3428f | 523 | ofproto->min_mtu = INT_MAX; |
7395c052 NZ |
524 | ovs_rwlock_init(&ofproto->groups_rwlock); |
525 | hmap_init(&ofproto->groups); | |
abe7b10f | 526 | ovs_mutex_unlock(&ofproto_mutex); |
0ae01c64 | 527 | ofproto->ogf.types = 0xf; |
7cb279c2 SH |
528 | ofproto->ogf.capabilities = OFPGFC_CHAINING | OFPGFC_SELECT_LIVENESS | |
529 | OFPGFC_SELECT_WEIGHT; | |
08d1e234 BP |
530 | for (i = 0; i < 4; i++) { |
531 | ofproto->ogf.max_groups[i] = OFPG_MAX; | |
532 | ofproto->ogf.ofpacts[i] = (UINT64_C(1) << N_OFPACTS) - 1; | |
533 | } | |
abe529af | 534 | |
0f5f95a9 | 535 | error = ofproto->ofproto_class->construct(ofproto); |
19a87e36 | 536 | if (error) { |
abe529af | 537 | VLOG_ERR("failed to open datapath %s: %s", |
10a89ef0 | 538 | datapath_name, ovs_strerror(error)); |
58f19539 | 539 | connmgr_destroy(ofproto->connmgr); |
abe529af | 540 | ofproto_destroy__(ofproto); |
19a87e36 BP |
541 | return error; |
542 | } | |
073e2a6f | 543 | |
c2f0373a | 544 | /* Check that hidden tables, if any, are at the end. */ |
cb22974d | 545 | ovs_assert(ofproto->n_tables); |
c2f0373a BP |
546 | for (i = 0; i + 1 < ofproto->n_tables; i++) { |
547 | enum oftable_flags flags = ofproto->tables[i].flags; | |
548 | enum oftable_flags next_flags = ofproto->tables[i + 1].flags; | |
549 | ||
cb22974d | 550 | ovs_assert(!(flags & OFTABLE_HIDDEN) || next_flags & OFTABLE_HIDDEN); |
c2f0373a | 551 | } |
19a87e36 | 552 | |
abe529af | 553 | ofproto->datapath_id = pick_datapath_id(ofproto); |
abe529af | 554 | init_ports(ofproto); |
7aa697dd | 555 | |
9cae45dc JR |
556 | /* Initialize meters table. */ |
557 | if (ofproto->ofproto_class->meter_get_features) { | |
558 | ofproto->ofproto_class->meter_get_features(ofproto, | |
559 | &ofproto->meter_features); | |
560 | } else { | |
561 | memset(&ofproto->meter_features, 0, sizeof ofproto->meter_features); | |
562 | } | |
563 | ofproto->meters = xzalloc((ofproto->meter_features.max_meters + 1) | |
564 | * sizeof(struct meter *)); | |
565 | ||
abe529af | 566 | *ofprotop = ofproto; |
064af421 BP |
567 | return 0; |
568 | } | |
569 | ||
91858960 BP |
570 | /* Must be called (only) by an ofproto implementation in its constructor |
571 | * function. See the large comment on 'construct' in struct ofproto_class for | |
572 | * details. */ | |
0f5f95a9 BP |
573 | void |
574 | ofproto_init_tables(struct ofproto *ofproto, int n_tables) | |
575 | { | |
576 | struct oftable *table; | |
577 | ||
cb22974d BP |
578 | ovs_assert(!ofproto->n_tables); |
579 | ovs_assert(n_tables >= 1 && n_tables <= 255); | |
0f5f95a9 BP |
580 | |
581 | ofproto->n_tables = n_tables; | |
582 | ofproto->tables = xmalloc(n_tables * sizeof *ofproto->tables); | |
583 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { | |
584 | oftable_init(table); | |
585 | } | |
586 | } | |
587 | ||
91858960 BP |
588 | /* To be optionally called (only) by an ofproto implementation in its |
589 | * constructor function. See the large comment on 'construct' in struct | |
590 | * ofproto_class for details. | |
591 | * | |
592 | * Sets the maximum number of ports to 'max_ports'. The ofproto generic layer | |
593 | * will then ensure that actions passed into the ofproto implementation will | |
594 | * not refer to OpenFlow ports numbered 'max_ports' or higher. If this | |
595 | * function is not called, there will be no such restriction. | |
596 | * | |
597 | * Reserved ports numbered OFPP_MAX and higher are special and not subject to | |
598 | * the 'max_ports' restriction. */ | |
599 | void | |
430dbb14 | 600 | ofproto_init_max_ports(struct ofproto *ofproto, uint16_t max_ports) |
91858960 | 601 | { |
430dbb14 | 602 | ovs_assert(max_ports <= ofp_to_u16(OFPP_MAX)); |
91858960 BP |
603 | ofproto->max_ports = max_ports; |
604 | } | |
605 | ||
e825ace2 BP |
606 | uint64_t |
607 | ofproto_get_datapath_id(const struct ofproto *ofproto) | |
608 | { | |
609 | return ofproto->datapath_id; | |
610 | } | |
611 | ||
064af421 BP |
612 | void |
613 | ofproto_set_datapath_id(struct ofproto *p, uint64_t datapath_id) | |
614 | { | |
615 | uint64_t old_dpid = p->datapath_id; | |
fa60c019 | 616 | p->datapath_id = datapath_id ? datapath_id : pick_datapath_id(p); |
064af421 | 617 | if (p->datapath_id != old_dpid) { |
76ce9432 BP |
618 | /* Force all active connections to reconnect, since there is no way to |
619 | * notify a controller that the datapath ID has changed. */ | |
fa05809b | 620 | ofproto_reconnect_controllers(p); |
064af421 BP |
621 | } |
622 | } | |
623 | ||
76ce9432 BP |
624 | void |
625 | ofproto_set_controllers(struct ofproto *p, | |
626 | const struct ofproto_controller *controllers, | |
1d9ffc17 | 627 | size_t n_controllers, uint32_t allowed_versions) |
76ce9432 | 628 | { |
1d9ffc17 SH |
629 | connmgr_set_controllers(p->connmgr, controllers, n_controllers, |
630 | allowed_versions); | |
064af421 BP |
631 | } |
632 | ||
31681a5d JP |
633 | void |
634 | ofproto_set_fail_mode(struct ofproto *p, enum ofproto_fail_mode fail_mode) | |
635 | { | |
19a87e36 | 636 | connmgr_set_fail_mode(p->connmgr, fail_mode); |
31681a5d JP |
637 | } |
638 | ||
fa05809b BP |
639 | /* Drops the connections between 'ofproto' and all of its controllers, forcing |
640 | * them to reconnect. */ | |
641 | void | |
642 | ofproto_reconnect_controllers(struct ofproto *ofproto) | |
643 | { | |
19a87e36 | 644 | connmgr_reconnect(ofproto->connmgr); |
917e50e1 BP |
645 | } |
646 | ||
647 | /* Sets the 'n' TCP port addresses in 'extras' as ones to which 'ofproto''s | |
648 | * in-band control should guarantee access, in the same way that in-band | |
649 | * control guarantees access to OpenFlow controllers. */ | |
650 | void | |
651 | ofproto_set_extra_in_band_remotes(struct ofproto *ofproto, | |
652 | const struct sockaddr_in *extras, size_t n) | |
653 | { | |
19a87e36 | 654 | connmgr_set_extra_in_band_remotes(ofproto->connmgr, extras, n); |
917e50e1 BP |
655 | } |
656 | ||
b1da6250 BP |
657 | /* Sets the OpenFlow queue used by flows set up by in-band control on |
658 | * 'ofproto' to 'queue_id'. If 'queue_id' is negative, then in-band control | |
659 | * flows will use the default queue. */ | |
660 | void | |
661 | ofproto_set_in_band_queue(struct ofproto *ofproto, int queue_id) | |
662 | { | |
19a87e36 | 663 | connmgr_set_in_band_queue(ofproto->connmgr, queue_id); |
b1da6250 BP |
664 | } |
665 | ||
084f5290 SH |
666 | /* Sets the number of flows at which eviction from the kernel flow table |
667 | * will occur. */ | |
668 | void | |
e79a6c83 | 669 | ofproto_set_flow_limit(unsigned limit) |
084f5290 | 670 | { |
e79a6c83 | 671 | ofproto_flow_limit = limit; |
084f5290 SH |
672 | } |
673 | ||
72310b04 JS |
674 | /* Sets the maximum idle time for flows in the datapath before they are |
675 | * expired. */ | |
676 | void | |
677 | ofproto_set_max_idle(unsigned max_idle) | |
678 | { | |
679 | ofproto_max_idle = max_idle; | |
680 | } | |
681 | ||
b53055f4 | 682 | /* If forward_bpdu is true, the NORMAL action will forward frames with |
8402c74b SS |
683 | * reserved (e.g. STP) destination Ethernet addresses. if forward_bpdu is false, |
684 | * the NORMAL action will drop these frames. */ | |
685 | void | |
686 | ofproto_set_forward_bpdu(struct ofproto *ofproto, bool forward_bpdu) | |
687 | { | |
688 | bool old_val = ofproto->forward_bpdu; | |
689 | ofproto->forward_bpdu = forward_bpdu; | |
690 | if (old_val != ofproto->forward_bpdu) { | |
691 | if (ofproto->ofproto_class->forward_bpdu_changed) { | |
692 | ofproto->ofproto_class->forward_bpdu_changed(ofproto); | |
693 | } | |
b53055f4 | 694 | } |
8402c74b SS |
695 | } |
696 | ||
e764773c | 697 | /* Sets the MAC aging timeout for the OFPP_NORMAL action on 'ofproto' to |
c4069512 BP |
698 | * 'idle_time', in seconds, and the maximum number of MAC table entries to |
699 | * 'max_entries'. */ | |
e764773c | 700 | void |
c4069512 BP |
701 | ofproto_set_mac_table_config(struct ofproto *ofproto, unsigned idle_time, |
702 | size_t max_entries) | |
e764773c | 703 | { |
c4069512 BP |
704 | if (ofproto->ofproto_class->set_mac_table_config) { |
705 | ofproto->ofproto_class->set_mac_table_config(ofproto, idle_time, | |
706 | max_entries); | |
e764773c BP |
707 | } |
708 | } | |
709 | ||
7c38d0a5 FL |
710 | /* Multicast snooping configuration. */ |
711 | ||
712 | /* Configures multicast snooping on 'ofproto' using the settings | |
713 | * defined in 's'. If 's' is NULL, disables multicast snooping. | |
714 | * | |
715 | * Returns 0 if successful, otherwise a positive errno value. */ | |
716 | int | |
717 | ofproto_set_mcast_snooping(struct ofproto *ofproto, | |
718 | const struct ofproto_mcast_snooping_settings *s) | |
719 | { | |
720 | return (ofproto->ofproto_class->set_mcast_snooping | |
721 | ? ofproto->ofproto_class->set_mcast_snooping(ofproto, s) | |
722 | : EOPNOTSUPP); | |
723 | } | |
724 | ||
8e04a33f | 725 | /* Configures multicast snooping flood settings on 'ofp_port' of 'ofproto'. |
7c38d0a5 FL |
726 | * |
727 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
728 | int | |
8e04a33f FL |
729 | ofproto_port_set_mcast_snooping(struct ofproto *ofproto, void *aux, |
730 | const struct ofproto_mcast_snooping_port_settings *s) | |
7c38d0a5 FL |
731 | { |
732 | return (ofproto->ofproto_class->set_mcast_snooping_port | |
8e04a33f | 733 | ? ofproto->ofproto_class->set_mcast_snooping_port(ofproto, aux, s) |
7c38d0a5 FL |
734 | : EOPNOTSUPP); |
735 | } | |
736 | ||
f2eee189 AW |
737 | void |
738 | ofproto_set_n_dpdk_rxqs(int n_rxqs) | |
739 | { | |
740 | n_dpdk_rxqs = MAX(n_rxqs, 0); | |
741 | } | |
742 | ||
743 | void | |
744 | ofproto_set_cpu_mask(const char *cmask) | |
745 | { | |
746 | free(pmd_cpu_mask); | |
747 | ||
748 | pmd_cpu_mask = cmask ? xstrdup(cmask) : NULL; | |
749 | } | |
750 | ||
448a4b2f | 751 | void |
30ea0da7 | 752 | ofproto_set_threads(int n_handlers_, int n_revalidators_) |
448a4b2f | 753 | { |
e79a6c83 EJ |
754 | int threads = MAX(count_cpu_cores(), 2); |
755 | ||
30ea0da7 GS |
756 | n_revalidators = MAX(n_revalidators_, 0); |
757 | n_handlers = MAX(n_handlers_, 0); | |
e79a6c83 EJ |
758 | |
759 | if (!n_revalidators) { | |
760 | n_revalidators = n_handlers | |
761 | ? MAX(threads - (int) n_handlers, 1) | |
762 | : threads / 4 + 1; | |
763 | } | |
764 | ||
765 | if (!n_handlers) { | |
766 | n_handlers = MAX(threads - (int) n_revalidators, 1); | |
767 | } | |
448a4b2f AW |
768 | } |
769 | ||
8b6ff729 BP |
770 | void |
771 | ofproto_set_dp_desc(struct ofproto *p, const char *dp_desc) | |
772 | { | |
773 | free(p->dp_desc); | |
774 | p->dp_desc = dp_desc ? xstrdup(dp_desc) : NULL; | |
775 | } | |
776 | ||
064af421 | 777 | int |
81e2083f | 778 | ofproto_set_snoops(struct ofproto *ofproto, const struct sset *snoops) |
064af421 | 779 | { |
19a87e36 | 780 | return connmgr_set_snoops(ofproto->connmgr, snoops); |
064af421 BP |
781 | } |
782 | ||
783 | int | |
0193b2af JG |
784 | ofproto_set_netflow(struct ofproto *ofproto, |
785 | const struct netflow_options *nf_options) | |
064af421 | 786 | { |
abe529af BP |
787 | if (nf_options && sset_is_empty(&nf_options->collectors)) { |
788 | nf_options = NULL; | |
789 | } | |
790 | ||
791 | if (ofproto->ofproto_class->set_netflow) { | |
792 | return ofproto->ofproto_class->set_netflow(ofproto, nf_options); | |
064af421 | 793 | } else { |
abe529af | 794 | return nf_options ? EOPNOTSUPP : 0; |
064af421 BP |
795 | } |
796 | } | |
797 | ||
abe529af | 798 | int |
72b06300 BP |
799 | ofproto_set_sflow(struct ofproto *ofproto, |
800 | const struct ofproto_sflow_options *oso) | |
801 | { | |
abe529af BP |
802 | if (oso && sset_is_empty(&oso->targets)) { |
803 | oso = NULL; | |
804 | } | |
72b06300 | 805 | |
abe529af BP |
806 | if (ofproto->ofproto_class->set_sflow) { |
807 | return ofproto->ofproto_class->set_sflow(ofproto, oso); | |
72b06300 | 808 | } else { |
abe529af | 809 | return oso ? EOPNOTSUPP : 0; |
72b06300 BP |
810 | } |
811 | } | |
29089a54 RL |
812 | |
813 | int | |
814 | ofproto_set_ipfix(struct ofproto *ofproto, | |
815 | const struct ofproto_ipfix_bridge_exporter_options *bo, | |
816 | const struct ofproto_ipfix_flow_exporter_options *fo, | |
817 | size_t n_fo) | |
818 | { | |
819 | if (ofproto->ofproto_class->set_ipfix) { | |
820 | return ofproto->ofproto_class->set_ipfix(ofproto, bo, fo, n_fo); | |
821 | } else { | |
822 | return (bo || fo) ? EOPNOTSUPP : 0; | |
823 | } | |
824 | } | |
40358701 GS |
825 | |
826 | void | |
827 | ofproto_set_flow_restore_wait(bool flow_restore_wait_db) | |
828 | { | |
829 | flow_restore_wait = flow_restore_wait_db; | |
830 | } | |
831 | ||
832 | bool | |
833 | ofproto_get_flow_restore_wait(void) | |
834 | { | |
835 | return flow_restore_wait; | |
836 | } | |
837 | ||
e7934396 | 838 | \f |
21f7563c JP |
839 | /* Spanning Tree Protocol (STP) configuration. */ |
840 | ||
841 | /* Configures STP on 'ofproto' using the settings defined in 's'. If | |
842 | * 's' is NULL, disables STP. | |
843 | * | |
844 | * Returns 0 if successful, otherwise a positive errno value. */ | |
845 | int | |
846 | ofproto_set_stp(struct ofproto *ofproto, | |
847 | const struct ofproto_stp_settings *s) | |
848 | { | |
849 | return (ofproto->ofproto_class->set_stp | |
850 | ? ofproto->ofproto_class->set_stp(ofproto, s) | |
851 | : EOPNOTSUPP); | |
852 | } | |
853 | ||
854 | /* Retrieves STP status of 'ofproto' and stores it in 's'. If the | |
855 | * 'enabled' member of 's' is false, then the other members are not | |
856 | * meaningful. | |
857 | * | |
858 | * Returns 0 if successful, otherwise a positive errno value. */ | |
859 | int | |
860 | ofproto_get_stp_status(struct ofproto *ofproto, | |
861 | struct ofproto_stp_status *s) | |
862 | { | |
863 | return (ofproto->ofproto_class->get_stp_status | |
864 | ? ofproto->ofproto_class->get_stp_status(ofproto, s) | |
865 | : EOPNOTSUPP); | |
866 | } | |
867 | ||
868 | /* Configures STP on 'ofp_port' of 'ofproto' using the settings defined | |
869 | * in 's'. The caller is responsible for assigning STP port numbers | |
870 | * (using the 'port_num' member in the range of 1 through 255, inclusive) | |
871 | * and ensuring there are no duplicates. If the 's' is NULL, then STP | |
872 | * is disabled on the port. | |
873 | * | |
874 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
875 | int | |
4e022ec0 | 876 | ofproto_port_set_stp(struct ofproto *ofproto, ofp_port_t ofp_port, |
21f7563c JP |
877 | const struct ofproto_port_stp_settings *s) |
878 | { | |
879 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
880 | if (!ofport) { | |
881 | VLOG_WARN("%s: cannot configure STP on nonexistent port %"PRIu16, | |
882 | ofproto->name, ofp_port); | |
883 | return ENODEV; | |
884 | } | |
885 | ||
886 | return (ofproto->ofproto_class->set_stp_port | |
887 | ? ofproto->ofproto_class->set_stp_port(ofport, s) | |
888 | : EOPNOTSUPP); | |
889 | } | |
890 | ||
891 | /* Retrieves STP port status of 'ofp_port' on 'ofproto' and stores it in | |
892 | * 's'. If the 'enabled' member in 's' is false, then the other members | |
893 | * are not meaningful. | |
894 | * | |
895 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
896 | int | |
4e022ec0 | 897 | ofproto_port_get_stp_status(struct ofproto *ofproto, ofp_port_t ofp_port, |
21f7563c JP |
898 | struct ofproto_port_stp_status *s) |
899 | { | |
900 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
901 | if (!ofport) { | |
b0a5c43b JP |
902 | VLOG_WARN_RL(&rl, "%s: cannot get STP status on nonexistent " |
903 | "port %"PRIu16, ofproto->name, ofp_port); | |
21f7563c JP |
904 | return ENODEV; |
905 | } | |
906 | ||
907 | return (ofproto->ofproto_class->get_stp_port_status | |
908 | ? ofproto->ofproto_class->get_stp_port_status(ofport, s) | |
909 | : EOPNOTSUPP); | |
910 | } | |
fd28ce3a JS |
911 | |
912 | /* Retrieves STP port statistics of 'ofp_port' on 'ofproto' and stores it in | |
913 | * 's'. If the 'enabled' member in 's' is false, then the other members | |
914 | * are not meaningful. | |
915 | * | |
916 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
917 | int | |
918 | ofproto_port_get_stp_stats(struct ofproto *ofproto, ofp_port_t ofp_port, | |
919 | struct ofproto_port_stp_stats *s) | |
920 | { | |
921 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
922 | if (!ofport) { | |
923 | VLOG_WARN_RL(&rl, "%s: cannot get STP stats on nonexistent " | |
924 | "port %"PRIu16, ofproto->name, ofp_port); | |
925 | return ENODEV; | |
926 | } | |
927 | ||
928 | return (ofproto->ofproto_class->get_stp_port_stats | |
929 | ? ofproto->ofproto_class->get_stp_port_stats(ofport, s) | |
930 | : EOPNOTSUPP); | |
931 | } | |
9efd308e DV |
932 | |
933 | /* Rapid Spanning Tree Protocol (RSTP) configuration. */ | |
934 | ||
935 | /* Configures RSTP on 'ofproto' using the settings defined in 's'. If | |
936 | * 's' is NULL, disables RSTP. | |
937 | * | |
938 | * Returns 0 if successful, otherwise a positive errno value. */ | |
939 | int | |
940 | ofproto_set_rstp(struct ofproto *ofproto, | |
941 | const struct ofproto_rstp_settings *s) | |
942 | { | |
943 | if (!ofproto->ofproto_class->set_rstp) { | |
944 | return EOPNOTSUPP; | |
945 | } | |
946 | ofproto->ofproto_class->set_rstp(ofproto, s); | |
947 | return 0; | |
948 | } | |
949 | ||
950 | /* Retrieves RSTP status of 'ofproto' and stores it in 's'. If the | |
951 | * 'enabled' member of 's' is false, then the other members are not | |
952 | * meaningful. | |
953 | * | |
954 | * Returns 0 if successful, otherwise a positive errno value. */ | |
955 | int | |
956 | ofproto_get_rstp_status(struct ofproto *ofproto, | |
957 | struct ofproto_rstp_status *s) | |
958 | { | |
959 | if (!ofproto->ofproto_class->get_rstp_status) { | |
960 | return EOPNOTSUPP; | |
961 | } | |
962 | ofproto->ofproto_class->get_rstp_status(ofproto, s); | |
963 | return 0; | |
964 | } | |
965 | ||
966 | /* Configures RSTP on 'ofp_port' of 'ofproto' using the settings defined | |
967 | * in 's'. The caller is responsible for assigning RSTP port numbers | |
968 | * (using the 'port_num' member in the range of 1 through 255, inclusive) | |
969 | * and ensuring there are no duplicates. If the 's' is NULL, then RSTP | |
970 | * is disabled on the port. | |
971 | * | |
972 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
973 | int | |
974 | ofproto_port_set_rstp(struct ofproto *ofproto, ofp_port_t ofp_port, | |
975 | const struct ofproto_port_rstp_settings *s) | |
976 | { | |
977 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
978 | if (!ofport) { | |
979 | VLOG_WARN("%s: cannot configure RSTP on nonexistent port %"PRIu16, | |
980 | ofproto->name, ofp_port); | |
981 | return ENODEV; | |
982 | } | |
983 | ||
984 | if (!ofproto->ofproto_class->set_rstp_port) { | |
985 | return EOPNOTSUPP; | |
986 | } | |
987 | ofproto->ofproto_class->set_rstp_port(ofport, s); | |
988 | return 0; | |
989 | } | |
990 | ||
991 | /* Retrieves RSTP port status of 'ofp_port' on 'ofproto' and stores it in | |
992 | * 's'. If the 'enabled' member in 's' is false, then the other members | |
993 | * are not meaningful. | |
994 | * | |
995 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
996 | int | |
997 | ofproto_port_get_rstp_status(struct ofproto *ofproto, ofp_port_t ofp_port, | |
998 | struct ofproto_port_rstp_status *s) | |
999 | { | |
1000 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1001 | if (!ofport) { | |
1002 | VLOG_WARN_RL(&rl, "%s: cannot get RSTP status on nonexistent " | |
1003 | "port %"PRIu16, ofproto->name, ofp_port); | |
1004 | return ENODEV; | |
1005 | } | |
1006 | ||
1007 | if (!ofproto->ofproto_class->get_rstp_port_status) { | |
1008 | return EOPNOTSUPP; | |
1009 | } | |
1010 | ofproto->ofproto_class->get_rstp_port_status(ofport, s); | |
1011 | return 0; | |
1012 | } | |
21f7563c | 1013 | \f |
8b36f51e EJ |
1014 | /* Queue DSCP configuration. */ |
1015 | ||
1016 | /* Registers meta-data associated with the 'n_qdscp' Qualities of Service | |
1017 | * 'queues' attached to 'ofport'. This data is not intended to be sufficient | |
1018 | * to implement QoS. Instead, it is used to implement features which require | |
1019 | * knowledge of what queues exist on a port, and some basic information about | |
1020 | * them. | |
1021 | * | |
1022 | * Returns 0 if successful, otherwise a positive errno value. */ | |
1023 | int | |
4e022ec0 | 1024 | ofproto_port_set_queues(struct ofproto *ofproto, ofp_port_t ofp_port, |
8b36f51e EJ |
1025 | const struct ofproto_port_queue *queues, |
1026 | size_t n_queues) | |
1027 | { | |
1028 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1029 | ||
1030 | if (!ofport) { | |
1031 | VLOG_WARN("%s: cannot set queues on nonexistent port %"PRIu16, | |
1032 | ofproto->name, ofp_port); | |
1033 | return ENODEV; | |
1034 | } | |
1035 | ||
1036 | return (ofproto->ofproto_class->set_queues | |
1037 | ? ofproto->ofproto_class->set_queues(ofport, queues, n_queues) | |
1038 | : EOPNOTSUPP); | |
1039 | } | |
1040 | \f | |
0477baa9 DF |
1041 | /* LLDP configuration. */ |
1042 | void | |
1043 | ofproto_port_set_lldp(struct ofproto *ofproto, | |
1044 | ofp_port_t ofp_port, | |
1045 | const struct smap *cfg) | |
1046 | { | |
1047 | struct ofport *ofport; | |
1048 | int error; | |
1049 | ||
1050 | ofport = ofproto_get_port(ofproto, ofp_port); | |
1051 | if (!ofport) { | |
1052 | VLOG_WARN("%s: cannot configure LLDP on nonexistent port %"PRIu16, | |
1053 | ofproto->name, ofp_port); | |
1054 | return; | |
1055 | } | |
1056 | error = (ofproto->ofproto_class->set_lldp | |
1057 | ? ofproto->ofproto_class->set_lldp(ofport, cfg) | |
1058 | : EOPNOTSUPP); | |
1059 | if (error) { | |
1060 | VLOG_WARN("%s: lldp configuration on port %"PRIu16" (%s) failed (%s)", | |
1061 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), | |
1062 | ovs_strerror(error)); | |
1063 | } | |
1064 | } | |
1065 | ||
1066 | int | |
1067 | ofproto_set_aa(struct ofproto *ofproto, void *aux OVS_UNUSED, | |
1068 | const struct aa_settings *s) | |
1069 | { | |
1070 | if (!ofproto->ofproto_class->set_aa) { | |
1071 | return EOPNOTSUPP; | |
1072 | } | |
1073 | ofproto->ofproto_class->set_aa(ofproto, s); | |
1074 | return 0; | |
1075 | } | |
1076 | ||
1077 | int | |
1078 | ofproto_aa_mapping_register(struct ofproto *ofproto, void *aux, | |
1079 | const struct aa_mapping_settings *s) | |
1080 | { | |
1081 | if (!ofproto->ofproto_class->aa_mapping_set) { | |
1082 | return EOPNOTSUPP; | |
1083 | } | |
1084 | ofproto->ofproto_class->aa_mapping_set(ofproto, aux, s); | |
1085 | return 0; | |
1086 | } | |
1087 | ||
1088 | int | |
1089 | ofproto_aa_mapping_unregister(struct ofproto *ofproto, void *aux) | |
1090 | { | |
1091 | if (!ofproto->ofproto_class->aa_mapping_unset) { | |
1092 | return EOPNOTSUPP; | |
1093 | } | |
1094 | ofproto->ofproto_class->aa_mapping_unset(ofproto, aux); | |
1095 | return 0; | |
1096 | } | |
1097 | ||
1098 | int | |
1099 | ofproto_aa_vlan_get_queued(struct ofproto *ofproto, | |
1100 | struct ovs_list *list) | |
1101 | { | |
1102 | if (!ofproto->ofproto_class->aa_vlan_get_queued) { | |
1103 | return EOPNOTSUPP; | |
1104 | } | |
1105 | ofproto->ofproto_class->aa_vlan_get_queued(ofproto, list); | |
1106 | return 0; | |
1107 | } | |
1108 | ||
1109 | unsigned int | |
1110 | ofproto_aa_vlan_get_queue_size(struct ofproto *ofproto) | |
1111 | { | |
1112 | if (!ofproto->ofproto_class->aa_vlan_get_queue_size) { | |
1113 | return EOPNOTSUPP; | |
1114 | } | |
1115 | return ofproto->ofproto_class->aa_vlan_get_queue_size(ofproto); | |
1116 | } | |
1117 | ||
e7934396 BP |
1118 | /* Connectivity Fault Management configuration. */ |
1119 | ||
892815f5 | 1120 | /* Clears the CFM configuration from 'ofp_port' on 'ofproto'. */ |
e7934396 | 1121 | void |
4e022ec0 | 1122 | ofproto_port_clear_cfm(struct ofproto *ofproto, ofp_port_t ofp_port) |
e7934396 | 1123 | { |
abe529af BP |
1124 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1125 | if (ofport && ofproto->ofproto_class->set_cfm) { | |
a5610457 | 1126 | ofproto->ofproto_class->set_cfm(ofport, NULL); |
e7934396 BP |
1127 | } |
1128 | } | |
72b06300 | 1129 | |
892815f5 | 1130 | /* Configures connectivity fault management on 'ofp_port' in 'ofproto'. Takes |
93b8df38 EJ |
1131 | * basic configuration from the configuration members in 'cfm', and the remote |
1132 | * maintenance point ID from remote_mpid. Ignores the statistics members of | |
1133 | * 'cfm'. | |
e7934396 | 1134 | * |
892815f5 | 1135 | * This function has no effect if 'ofproto' does not have a port 'ofp_port'. */ |
e7934396 | 1136 | void |
4e022ec0 | 1137 | ofproto_port_set_cfm(struct ofproto *ofproto, ofp_port_t ofp_port, |
a5610457 | 1138 | const struct cfm_settings *s) |
e7934396 BP |
1139 | { |
1140 | struct ofport *ofport; | |
abe529af | 1141 | int error; |
e7934396 | 1142 | |
abe529af | 1143 | ofport = ofproto_get_port(ofproto, ofp_port); |
e7934396 | 1144 | if (!ofport) { |
892815f5 BP |
1145 | VLOG_WARN("%s: cannot configure CFM on nonexistent port %"PRIu16, |
1146 | ofproto->name, ofp_port); | |
e7934396 BP |
1147 | return; |
1148 | } | |
1149 | ||
93b8df38 EJ |
1150 | /* XXX: For configuration simplicity, we only support one remote_mpid |
1151 | * outside of the CFM module. It's not clear if this is the correct long | |
1152 | * term solution or not. */ | |
abe529af | 1153 | error = (ofproto->ofproto_class->set_cfm |
a5610457 | 1154 | ? ofproto->ofproto_class->set_cfm(ofport, s) |
abe529af BP |
1155 | : EOPNOTSUPP); |
1156 | if (error) { | |
1157 | VLOG_WARN("%s: CFM configuration on port %"PRIu16" (%s) failed (%s)", | |
1158 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), | |
10a89ef0 | 1159 | ovs_strerror(error)); |
e7934396 | 1160 | } |
e7934396 | 1161 | } |
e7934396 | 1162 | |
ccc09689 EJ |
1163 | /* Configures BFD on 'ofp_port' in 'ofproto'. This function has no effect if |
1164 | * 'ofproto' does not have a port 'ofp_port'. */ | |
1165 | void | |
4e022ec0 | 1166 | ofproto_port_set_bfd(struct ofproto *ofproto, ofp_port_t ofp_port, |
ccc09689 EJ |
1167 | const struct smap *cfg) |
1168 | { | |
1169 | struct ofport *ofport; | |
1170 | int error; | |
1171 | ||
1172 | ofport = ofproto_get_port(ofproto, ofp_port); | |
1173 | if (!ofport) { | |
1174 | VLOG_WARN("%s: cannot configure bfd on nonexistent port %"PRIu16, | |
1175 | ofproto->name, ofp_port); | |
e8999bdc | 1176 | return; |
ccc09689 EJ |
1177 | } |
1178 | ||
1179 | error = (ofproto->ofproto_class->set_bfd | |
1180 | ? ofproto->ofproto_class->set_bfd(ofport, cfg) | |
1181 | : EOPNOTSUPP); | |
1182 | if (error) { | |
1183 | VLOG_WARN("%s: bfd configuration on port %"PRIu16" (%s) failed (%s)", | |
1184 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), | |
10a89ef0 | 1185 | ovs_strerror(error)); |
ccc09689 EJ |
1186 | } |
1187 | } | |
1188 | ||
8f5514fe AW |
1189 | /* Checks the status change of BFD on 'ofport'. |
1190 | * | |
1191 | * Returns true if 'ofproto_class' does not support 'bfd_status_changed'. */ | |
1192 | bool | |
1193 | ofproto_port_bfd_status_changed(struct ofproto *ofproto, ofp_port_t ofp_port) | |
1194 | { | |
1195 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1196 | return (ofport && ofproto->ofproto_class->bfd_status_changed | |
1197 | ? ofproto->ofproto_class->bfd_status_changed(ofport) | |
1198 | : true); | |
1199 | } | |
1200 | ||
88bf179a | 1201 | /* Populates 'status' with the status of BFD on 'ofport'. Returns 0 on |
8f5514fe AW |
1202 | * success. Returns a positive errno otherwise. Has no effect if 'ofp_port' |
1203 | * is not an OpenFlow port in 'ofproto'. | |
88bf179a AW |
1204 | * |
1205 | * The caller must provide and own '*status'. */ | |
ccc09689 | 1206 | int |
4e022ec0 | 1207 | ofproto_port_get_bfd_status(struct ofproto *ofproto, ofp_port_t ofp_port, |
ccc09689 EJ |
1208 | struct smap *status) |
1209 | { | |
1210 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1211 | return (ofport && ofproto->ofproto_class->get_bfd_status | |
1212 | ? ofproto->ofproto_class->get_bfd_status(ofport, status) | |
1213 | : EOPNOTSUPP); | |
1214 | } | |
1215 | ||
fa066f01 BP |
1216 | /* Checks the status of LACP negotiation for 'ofp_port' within ofproto. |
1217 | * Returns 1 if LACP partner information for 'ofp_port' is up-to-date, | |
1218 | * 0 if LACP partner information is not current (generally indicating a | |
1219 | * connectivity problem), or -1 if LACP is not enabled on 'ofp_port'. */ | |
1220 | int | |
4e022ec0 | 1221 | ofproto_port_is_lacp_current(struct ofproto *ofproto, ofp_port_t ofp_port) |
fa066f01 | 1222 | { |
abe529af BP |
1223 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1224 | return (ofport && ofproto->ofproto_class->port_is_lacp_current | |
1225 | ? ofproto->ofproto_class->port_is_lacp_current(ofport) | |
fa066f01 | 1226 | : -1); |
e7934396 | 1227 | } |
50b9699f NM |
1228 | |
1229 | int | |
1230 | ofproto_port_get_lacp_stats(const struct ofport *port, struct lacp_slave_stats *stats) | |
1231 | { | |
1232 | struct ofproto *ofproto = port->ofproto; | |
1233 | int error; | |
1234 | ||
1235 | if (ofproto->ofproto_class->port_get_lacp_stats) { | |
1236 | error = ofproto->ofproto_class->port_get_lacp_stats(port, stats); | |
1237 | } else { | |
1238 | error = EOPNOTSUPP; | |
1239 | } | |
1240 | ||
1241 | return error; | |
1242 | } | |
e7934396 | 1243 | \f |
fa066f01 | 1244 | /* Bundles. */ |
e7934396 | 1245 | |
abe529af BP |
1246 | /* Registers a "bundle" associated with client data pointer 'aux' in 'ofproto'. |
1247 | * A bundle is the same concept as a Port in OVSDB, that is, it consists of one | |
1248 | * or more "slave" devices (Interfaces, in OVSDB) along with a VLAN | |
1249 | * configuration plus, if there is more than one slave, a bonding | |
1250 | * configuration. | |
1251 | * | |
1252 | * If 'aux' is already registered then this function updates its configuration | |
1253 | * to 's'. Otherwise, this function registers a new bundle. | |
1254 | * | |
1255 | * Bundles only affect the NXAST_AUTOPATH action and output to the OFPP_NORMAL | |
1256 | * port. */ | |
1257 | int | |
1258 | ofproto_bundle_register(struct ofproto *ofproto, void *aux, | |
1259 | const struct ofproto_bundle_settings *s) | |
fa066f01 | 1260 | { |
abe529af BP |
1261 | return (ofproto->ofproto_class->bundle_set |
1262 | ? ofproto->ofproto_class->bundle_set(ofproto, aux, s) | |
1263 | : EOPNOTSUPP); | |
fa066f01 BP |
1264 | } |
1265 | ||
abe529af BP |
1266 | /* Unregisters the bundle registered on 'ofproto' with auxiliary data 'aux'. |
1267 | * If no such bundle has been registered, this has no effect. */ | |
1268 | int | |
1269 | ofproto_bundle_unregister(struct ofproto *ofproto, void *aux) | |
e7934396 | 1270 | { |
abe529af | 1271 | return ofproto_bundle_register(ofproto, aux, NULL); |
e7934396 | 1272 | } |
fa066f01 | 1273 | |
e7934396 | 1274 | \f |
abe529af BP |
1275 | /* Registers a mirror associated with client data pointer 'aux' in 'ofproto'. |
1276 | * If 'aux' is already registered then this function updates its configuration | |
c06bba01 | 1277 | * to 's'. Otherwise, this function registers a new mirror. */ |
abe529af BP |
1278 | int |
1279 | ofproto_mirror_register(struct ofproto *ofproto, void *aux, | |
1280 | const struct ofproto_mirror_settings *s) | |
064af421 | 1281 | { |
abe529af BP |
1282 | return (ofproto->ofproto_class->mirror_set |
1283 | ? ofproto->ofproto_class->mirror_set(ofproto, aux, s) | |
1284 | : EOPNOTSUPP); | |
064af421 BP |
1285 | } |
1286 | ||
abe529af BP |
1287 | /* Unregisters the mirror registered on 'ofproto' with auxiliary data 'aux'. |
1288 | * If no mirror has been registered, this has no effect. */ | |
1289 | int | |
1290 | ofproto_mirror_unregister(struct ofproto *ofproto, void *aux) | |
064af421 | 1291 | { |
abe529af | 1292 | return ofproto_mirror_register(ofproto, aux, NULL); |
064af421 BP |
1293 | } |
1294 | ||
9d24de3b JP |
1295 | /* Retrieves statistics from mirror associated with client data pointer |
1296 | * 'aux' in 'ofproto'. Stores packet and byte counts in 'packets' and | |
1297 | * 'bytes', respectively. If a particular counters is not supported, | |
0477baa9 DF |
1298 | * the appropriate argument is set to UINT64_MAX. |
1299 | */ | |
9d24de3b JP |
1300 | int |
1301 | ofproto_mirror_get_stats(struct ofproto *ofproto, void *aux, | |
1302 | uint64_t *packets, uint64_t *bytes) | |
1303 | { | |
1304 | if (!ofproto->ofproto_class->mirror_get_stats) { | |
1305 | *packets = *bytes = UINT64_MAX; | |
1306 | return EOPNOTSUPP; | |
1307 | } | |
1308 | ||
1309 | return ofproto->ofproto_class->mirror_get_stats(ofproto, aux, | |
1310 | packets, bytes); | |
1311 | } | |
1312 | ||
abe529af BP |
1313 | /* Configures the VLANs whose bits are set to 1 in 'flood_vlans' as VLANs on |
1314 | * which all packets are flooded, instead of using MAC learning. If | |
1315 | * 'flood_vlans' is NULL, then MAC learning applies to all VLANs. | |
1316 | * | |
1317 | * Flood VLANs affect only the treatment of packets output to the OFPP_NORMAL | |
1318 | * port. */ | |
1319 | int | |
1320 | ofproto_set_flood_vlans(struct ofproto *ofproto, unsigned long *flood_vlans) | |
abdfe474 | 1321 | { |
abe529af BP |
1322 | return (ofproto->ofproto_class->set_flood_vlans |
1323 | ? ofproto->ofproto_class->set_flood_vlans(ofproto, flood_vlans) | |
1324 | : EOPNOTSUPP); | |
abdfe474 JP |
1325 | } |
1326 | ||
abe529af BP |
1327 | /* Returns true if 'aux' is a registered bundle that is currently in use as the |
1328 | * output for a mirror. */ | |
1329 | bool | |
b4affc74 | 1330 | ofproto_is_mirror_output_bundle(const struct ofproto *ofproto, void *aux) |
abe529af BP |
1331 | { |
1332 | return (ofproto->ofproto_class->is_mirror_output_bundle | |
1333 | ? ofproto->ofproto_class->is_mirror_output_bundle(ofproto, aux) | |
1334 | : false); | |
1335 | } | |
1336 | \f | |
254750ce BP |
1337 | /* Configuration of OpenFlow tables. */ |
1338 | ||
1339 | /* Returns the number of OpenFlow tables in 'ofproto'. */ | |
1340 | int | |
1341 | ofproto_get_n_tables(const struct ofproto *ofproto) | |
1342 | { | |
1343 | return ofproto->n_tables; | |
1344 | } | |
1345 | ||
adcf00ba AZ |
1346 | /* Returns the number of Controller visible OpenFlow tables |
1347 | * in 'ofproto'. This number will exclude Hidden tables. | |
1348 | * This funtion's return value should be less or equal to that of | |
1349 | * ofproto_get_n_tables() . */ | |
1350 | uint8_t | |
1351 | ofproto_get_n_visible_tables(const struct ofproto *ofproto) | |
1352 | { | |
1353 | uint8_t n = ofproto->n_tables; | |
1354 | ||
1355 | /* Count only non-hidden tables in the number of tables. (Hidden tables, | |
1356 | * if present, are always at the end.) */ | |
1357 | while(n && (ofproto->tables[n - 1].flags & OFTABLE_HIDDEN)) { | |
1358 | n--; | |
1359 | } | |
1360 | ||
1361 | return n; | |
1362 | } | |
1363 | ||
254750ce BP |
1364 | /* Configures the OpenFlow table in 'ofproto' with id 'table_id' with the |
1365 | * settings from 's'. 'table_id' must be in the range 0 through the number of | |
1366 | * OpenFlow tables in 'ofproto' minus 1, inclusive. | |
1367 | * | |
1368 | * For read-only tables, only the name may be configured. */ | |
1369 | void | |
1370 | ofproto_configure_table(struct ofproto *ofproto, int table_id, | |
1371 | const struct ofproto_table_settings *s) | |
1372 | { | |
1373 | struct oftable *table; | |
1374 | ||
cb22974d | 1375 | ovs_assert(table_id >= 0 && table_id < ofproto->n_tables); |
254750ce BP |
1376 | table = &ofproto->tables[table_id]; |
1377 | ||
1378 | oftable_set_name(table, s->name); | |
1379 | ||
1380 | if (table->flags & OFTABLE_READONLY) { | |
1381 | return; | |
1382 | } | |
1383 | ||
1384 | if (s->groups) { | |
1385 | oftable_enable_eviction(table, s->groups, s->n_groups); | |
1386 | } else { | |
1387 | oftable_disable_eviction(table); | |
1388 | } | |
1389 | ||
1390 | table->max_flows = s->max_flows; | |
afae68b1 | 1391 | |
f358a2cb JR |
1392 | if (classifier_set_prefix_fields(&table->cls, |
1393 | s->prefix_fields, s->n_prefix_fields)) { | |
1394 | /* XXX: Trigger revalidation. */ | |
1395 | } | |
834fe5cb BP |
1396 | |
1397 | ovs_mutex_lock(&ofproto_mutex); | |
1398 | evict_rules_from_table(table, 0); | |
1399 | ovs_mutex_unlock(&ofproto_mutex); | |
254750ce BP |
1400 | } |
1401 | \f | |
81e2083f BP |
1402 | bool |
1403 | ofproto_has_snoops(const struct ofproto *ofproto) | |
1404 | { | |
1405 | return connmgr_has_snoops(ofproto->connmgr); | |
1406 | } | |
1407 | ||
064af421 | 1408 | void |
81e2083f | 1409 | ofproto_get_snoops(const struct ofproto *ofproto, struct sset *snoops) |
064af421 | 1410 | { |
19a87e36 | 1411 | connmgr_get_snoops(ofproto->connmgr, snoops); |
064af421 BP |
1412 | } |
1413 | ||
a73fcd71 | 1414 | /* Deletes 'rule' from 'ofproto'. |
8037acb4 | 1415 | * |
b74cb5d8 BP |
1416 | * Within an ofproto implementation, this function allows an ofproto |
1417 | * implementation to destroy any rules that remain when its ->destruct() | |
1418 | * function is called. This function is not suitable for use elsewhere in an | |
1419 | * ofproto implementation. | |
1420 | * | |
b74cb5d8 | 1421 | * This function implements steps 4.4 and 4.5 in the section titled "Rule Life |
8b81d1ef | 1422 | * Cycle" in ofproto-provider.h. */ |
b74cb5d8 | 1423 | void |
8b81d1ef | 1424 | ofproto_rule_delete(struct ofproto *ofproto, struct rule *rule) |
15aaf599 | 1425 | OVS_EXCLUDED(ofproto_mutex) |
7ee20df1 | 1426 | { |
834fe5cb BP |
1427 | /* This skips the ofmonitor and flow-removed notifications because the |
1428 | * switch is being deleted and any OpenFlow channels have been or soon will | |
1429 | * be killed. */ | |
15aaf599 | 1430 | ovs_mutex_lock(&ofproto_mutex); |
802f84ff | 1431 | oftable_remove_rule(rule); |
8037acb4 | 1432 | ofproto->ofproto_class->rule_delete(rule); |
15aaf599 | 1433 | ovs_mutex_unlock(&ofproto_mutex); |
8037acb4 BP |
1434 | } |
1435 | ||
1436 | static void | |
1437 | ofproto_flush__(struct ofproto *ofproto) | |
15aaf599 | 1438 | OVS_EXCLUDED(ofproto_mutex) |
8037acb4 | 1439 | { |
d0918789 | 1440 | struct oftable *table; |
7ee20df1 | 1441 | |
3948503a | 1442 | /* This will flush all datapath flows. */ |
7ee20df1 BP |
1443 | if (ofproto->ofproto_class->flush) { |
1444 | ofproto->ofproto_class->flush(ofproto); | |
1445 | } | |
1446 | ||
3948503a JR |
1447 | /* XXX: There is a small race window here, where new datapath flows can be |
1448 | * created by upcall handlers based on the existing flow table. We can not | |
1449 | * call ofproto class flush while holding 'ofproto_mutex' to prevent this, | |
1450 | * as then we could deadlock on syncing with the handler threads waiting on | |
1451 | * the same mutex. */ | |
1452 | ||
15aaf599 | 1453 | ovs_mutex_lock(&ofproto_mutex); |
b772ded8 | 1454 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
802f84ff | 1455 | struct rule_collection rules; |
78c8df12 | 1456 | struct rule *rule; |
7ee20df1 | 1457 | |
5c67e4af BP |
1458 | if (table->flags & OFTABLE_HIDDEN) { |
1459 | continue; | |
1460 | } | |
1461 | ||
802f84ff JR |
1462 | rule_collection_init(&rules); |
1463 | ||
de4ad4a2 | 1464 | CLS_FOR_EACH (rule, cr, &table->cls) { |
802f84ff | 1465 | rule_collection_add(&rules, rule); |
7ee20df1 | 1466 | } |
802f84ff JR |
1467 | delete_flows__(&rules, OFPRR_DELETE, NULL); |
1468 | rule_collection_destroy(&rules); | |
7ee20df1 | 1469 | } |
3948503a JR |
1470 | /* XXX: Concurrent handler threads may insert new learned flows based on |
1471 | * learn actions of the now deleted flows right after we release | |
1472 | * 'ofproto_mutex'. */ | |
15aaf599 | 1473 | ovs_mutex_unlock(&ofproto_mutex); |
7ee20df1 BP |
1474 | } |
1475 | ||
7395c052 NZ |
1476 | static void delete_group(struct ofproto *ofproto, uint32_t group_id); |
1477 | ||
abe529af BP |
1478 | static void |
1479 | ofproto_destroy__(struct ofproto *ofproto) | |
15aaf599 | 1480 | OVS_EXCLUDED(ofproto_mutex) |
abe529af | 1481 | { |
d0918789 | 1482 | struct oftable *table; |
6c1491fb | 1483 | |
35412852 | 1484 | destroy_rule_executes(ofproto); |
7395c052 | 1485 | delete_group(ofproto, OFPG_ALL); |
5c09b672 GS |
1486 | |
1487 | guarded_list_destroy(&ofproto->rule_executes); | |
7395c052 NZ |
1488 | ovs_rwlock_destroy(&ofproto->groups_rwlock); |
1489 | hmap_destroy(&ofproto->groups); | |
1490 | ||
abe529af BP |
1491 | hmap_remove(&all_ofprotos, &ofproto->hmap_node); |
1492 | free(ofproto->name); | |
955a7127 | 1493 | free(ofproto->type); |
abe529af BP |
1494 | free(ofproto->mfr_desc); |
1495 | free(ofproto->hw_desc); | |
1496 | free(ofproto->sw_desc); | |
1497 | free(ofproto->serial_desc); | |
1498 | free(ofproto->dp_desc); | |
abe529af | 1499 | hmap_destroy(&ofproto->ports); |
fdcea803 | 1500 | hmap_destroy(&ofproto->ofport_usage); |
abe529af | 1501 | shash_destroy(&ofproto->port_by_name); |
e1b1d06a | 1502 | simap_destroy(&ofproto->ofp_requests); |
6c1491fb | 1503 | |
b772ded8 | 1504 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
d0918789 | 1505 | oftable_destroy(table); |
6c1491fb BP |
1506 | } |
1507 | free(ofproto->tables); | |
fa066f01 | 1508 | |
1406c79b BP |
1509 | ovs_assert(hindex_is_empty(&ofproto->cookies)); |
1510 | hindex_destroy(&ofproto->cookies); | |
1511 | ||
35f48b8b BP |
1512 | ovs_assert(hmap_is_empty(&ofproto->learned_cookies)); |
1513 | hmap_destroy(&ofproto->learned_cookies); | |
1514 | ||
52a90c29 BP |
1515 | free(ofproto->vlan_bitmap); |
1516 | ||
abe529af BP |
1517 | ofproto->ofproto_class->dealloc(ofproto); |
1518 | } | |
fa066f01 | 1519 | |
064af421 BP |
1520 | void |
1521 | ofproto_destroy(struct ofproto *p) | |
15aaf599 | 1522 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 1523 | { |
ca0f572c | 1524 | struct ofport *ofport, *next_ofport; |
fdcea803 | 1525 | struct ofport_usage *usage, *next_usage; |
064af421 BP |
1526 | |
1527 | if (!p) { | |
1528 | return; | |
1529 | } | |
1530 | ||
717de9ff JR |
1531 | if (p->meters) { |
1532 | meter_delete(p, 1, p->meter_features.max_meters); | |
1533 | p->meter_features.max_meters = 0; | |
1534 | free(p->meters); | |
1535 | p->meters = NULL; | |
1536 | } | |
1537 | ||
7ee20df1 | 1538 | ofproto_flush__(p); |
4e8e4213 | 1539 | HMAP_FOR_EACH_SAFE (ofport, next_ofport, hmap_node, &p->ports) { |
abe529af | 1540 | ofport_destroy(ofport); |
064af421 | 1541 | } |
064af421 | 1542 | |
fdcea803 GS |
1543 | HMAP_FOR_EACH_SAFE (usage, next_usage, hmap_node, &p->ofport_usage) { |
1544 | hmap_remove(&p->ofport_usage, &usage->hmap_node); | |
1545 | free(usage); | |
1546 | } | |
1547 | ||
abe529af | 1548 | p->ofproto_class->destruct(p); |
58f19539 DDP |
1549 | |
1550 | /* We should not postpone this because it involves deleting a listening | |
1551 | * socket which we may want to reopen soon. 'connmgr' should not be used | |
1552 | * by other threads */ | |
1553 | connmgr_destroy(p->connmgr); | |
1554 | ||
f416c8d6 JR |
1555 | /* Destroying rules is deferred, must have 'ofproto' around for them. */ |
1556 | ovsrcu_postpone(ofproto_destroy__, p); | |
064af421 BP |
1557 | } |
1558 | ||
abe529af BP |
1559 | /* Destroys the datapath with the respective 'name' and 'type'. With the Linux |
1560 | * kernel datapath, for example, this destroys the datapath in the kernel, and | |
1561 | * with the netdev-based datapath, it tears down the data structures that | |
1562 | * represent the datapath. | |
1563 | * | |
1564 | * The datapath should not be currently open as an ofproto. */ | |
064af421 | 1565 | int |
abe529af | 1566 | ofproto_delete(const char *name, const char *type) |
064af421 | 1567 | { |
abe529af BP |
1568 | const struct ofproto_class *class = ofproto_class_find__(type); |
1569 | return (!class ? EAFNOSUPPORT | |
1570 | : !class->del ? EACCES | |
1571 | : class->del(type, name)); | |
064af421 BP |
1572 | } |
1573 | ||
e9e28be3 BP |
1574 | static void |
1575 | process_port_change(struct ofproto *ofproto, int error, char *devname) | |
1576 | { | |
1577 | if (error == ENOBUFS) { | |
1578 | reinit_ports(ofproto); | |
1579 | } else if (!error) { | |
1580 | update_port(ofproto, devname); | |
1581 | free(devname); | |
1582 | } | |
1583 | } | |
1584 | ||
11a574a7 JP |
1585 | int |
1586 | ofproto_type_run(const char *datapath_type) | |
1587 | { | |
1588 | const struct ofproto_class *class; | |
1589 | int error; | |
1590 | ||
1591 | datapath_type = ofproto_normalize_type(datapath_type); | |
1592 | class = ofproto_class_find__(datapath_type); | |
1593 | ||
1594 | error = class->type_run ? class->type_run(datapath_type) : 0; | |
1595 | if (error && error != EAGAIN) { | |
1596 | VLOG_ERR_RL(&rl, "%s: type_run failed (%s)", | |
10a89ef0 | 1597 | datapath_type, ovs_strerror(error)); |
11a574a7 JP |
1598 | } |
1599 | return error; | |
1600 | } | |
1601 | ||
11a574a7 JP |
1602 | void |
1603 | ofproto_type_wait(const char *datapath_type) | |
1604 | { | |
1605 | const struct ofproto_class *class; | |
1606 | ||
1607 | datapath_type = ofproto_normalize_type(datapath_type); | |
1608 | class = ofproto_class_find__(datapath_type); | |
1609 | ||
1610 | if (class->type_wait) { | |
1611 | class->type_wait(datapath_type); | |
1612 | } | |
1613 | } | |
1614 | ||
064af421 | 1615 | int |
abe529af | 1616 | ofproto_run(struct ofproto *p) |
064af421 | 1617 | { |
064af421 | 1618 | int error; |
da4a6191 | 1619 | uint64_t new_seq; |
064af421 | 1620 | |
abe529af | 1621 | error = p->ofproto_class->run(p); |
5fcc0d00 | 1622 | if (error && error != EAGAIN) { |
10a89ef0 | 1623 | VLOG_ERR_RL(&rl, "%s: run failed (%s)", p->name, ovs_strerror(error)); |
149f577a JG |
1624 | } |
1625 | ||
35412852 BP |
1626 | run_rule_executes(p); |
1627 | ||
448c2fa8 EJ |
1628 | /* Restore the eviction group heap invariant occasionally. */ |
1629 | if (p->eviction_group_timer < time_msec()) { | |
1630 | size_t i; | |
1631 | ||
1632 | p->eviction_group_timer = time_msec() + 1000; | |
1633 | ||
1634 | for (i = 0; i < p->n_tables; i++) { | |
1635 | struct oftable *table = &p->tables[i]; | |
1636 | struct eviction_group *evg; | |
448c2fa8 EJ |
1637 | struct rule *rule; |
1638 | ||
1639 | if (!table->eviction_fields) { | |
1640 | continue; | |
1641 | } | |
1642 | ||
1a9bb326 EJ |
1643 | if (classifier_count(&table->cls) > 100000) { |
1644 | static struct vlog_rate_limit count_rl = | |
1645 | VLOG_RATE_LIMIT_INIT(1, 1); | |
1646 | VLOG_WARN_RL(&count_rl, "Table %"PRIuSIZE" has an excessive" | |
1647 | " number of rules: %d", i, | |
1648 | classifier_count(&table->cls)); | |
1649 | } | |
1650 | ||
15aaf599 | 1651 | ovs_mutex_lock(&ofproto_mutex); |
5f0476ce | 1652 | CLS_FOR_EACH (rule, cr, &table->cls) { |
6d56c1f1 K |
1653 | if (rule->idle_timeout || rule->hard_timeout) { |
1654 | if (!rule->eviction_group) { | |
1655 | eviction_group_add_rule(rule); | |
1656 | } else { | |
1657 | heap_raw_change(&rule->evg_node, | |
1658 | rule_eviction_priority(p, rule)); | |
1659 | } | |
448c2fa8 EJ |
1660 | } |
1661 | } | |
6d56c1f1 K |
1662 | |
1663 | HEAP_FOR_EACH (evg, size_node, &table->eviction_groups_by_size) { | |
1664 | heap_rebuild(&evg->rules); | |
1665 | } | |
15aaf599 | 1666 | ovs_mutex_unlock(&ofproto_mutex); |
448c2fa8 EJ |
1667 | } |
1668 | } | |
1669 | ||
5bf0e941 | 1670 | if (p->ofproto_class->port_poll) { |
7436ed80 BP |
1671 | char *devname; |
1672 | ||
5bf0e941 BP |
1673 | while ((error = p->ofproto_class->port_poll(p, &devname)) != EAGAIN) { |
1674 | process_port_change(p, error, devname); | |
064af421 | 1675 | } |
e9e28be3 | 1676 | } |
031d8bff | 1677 | |
da4a6191 JS |
1678 | new_seq = seq_read(connectivity_seq_get()); |
1679 | if (new_seq != p->change_seq) { | |
1680 | struct sset devnames; | |
1681 | const char *devname; | |
1682 | struct ofport *ofport; | |
1683 | ||
1684 | /* Update OpenFlow port status for any port whose netdev has changed. | |
1685 | * | |
1686 | * Refreshing a given 'ofport' can cause an arbitrary ofport to be | |
1687 | * destroyed, so it's not safe to update ports directly from the | |
1688 | * HMAP_FOR_EACH loop, or even to use HMAP_FOR_EACH_SAFE. Instead, we | |
1689 | * need this two-phase approach. */ | |
1690 | sset_init(&devnames); | |
1691 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
61501798 AW |
1692 | uint64_t port_change_seq; |
1693 | ||
1694 | port_change_seq = netdev_get_change_seq(ofport->netdev); | |
1695 | if (ofport->change_seq != port_change_seq) { | |
1696 | ofport->change_seq = port_change_seq; | |
1697 | sset_add(&devnames, netdev_get_name(ofport->netdev)); | |
1698 | } | |
031d8bff | 1699 | } |
da4a6191 JS |
1700 | SSET_FOR_EACH (devname, &devnames) { |
1701 | update_port(p, devname); | |
1702 | } | |
1703 | sset_destroy(&devnames); | |
1704 | ||
1705 | p->change_seq = new_seq; | |
064af421 BP |
1706 | } |
1707 | ||
834fe5cb | 1708 | connmgr_run(p->connmgr, handle_openflow); |
064af421 | 1709 | |
5fcc0d00 BP |
1710 | return error; |
1711 | } | |
1712 | ||
064af421 BP |
1713 | void |
1714 | ofproto_wait(struct ofproto *p) | |
1715 | { | |
abe529af | 1716 | p->ofproto_class->wait(p); |
5bf0e941 BP |
1717 | if (p->ofproto_class->port_poll_wait) { |
1718 | p->ofproto_class->port_poll_wait(p); | |
e7934396 | 1719 | } |
da4a6191 | 1720 | seq_wait(connectivity_seq_get(), p->change_seq); |
834fe5cb | 1721 | connmgr_wait(p->connmgr); |
064af421 BP |
1722 | } |
1723 | ||
064af421 BP |
1724 | bool |
1725 | ofproto_is_alive(const struct ofproto *p) | |
1726 | { | |
19a87e36 | 1727 | return connmgr_has_controllers(p->connmgr); |
064af421 BP |
1728 | } |
1729 | ||
0d085684 BP |
1730 | /* Adds some memory usage statistics for 'ofproto' into 'usage', for use with |
1731 | * memory_report(). */ | |
1732 | void | |
1733 | ofproto_get_memory_usage(const struct ofproto *ofproto, struct simap *usage) | |
1734 | { | |
1735 | const struct oftable *table; | |
1736 | unsigned int n_rules; | |
1737 | ||
1738 | simap_increase(usage, "ports", hmap_count(&ofproto->ports)); | |
15aaf599 | 1739 | |
0d085684 BP |
1740 | n_rules = 0; |
1741 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { | |
1742 | n_rules += classifier_count(&table->cls); | |
1743 | } | |
1744 | simap_increase(usage, "rules", n_rules); | |
1745 | ||
1746 | if (ofproto->ofproto_class->get_memory_usage) { | |
1747 | ofproto->ofproto_class->get_memory_usage(ofproto, usage); | |
1748 | } | |
1749 | ||
1750 | connmgr_get_memory_usage(ofproto->connmgr, usage); | |
1751 | } | |
1752 | ||
1c030aa5 EJ |
1753 | void |
1754 | ofproto_type_get_memory_usage(const char *datapath_type, struct simap *usage) | |
1755 | { | |
1756 | const struct ofproto_class *class; | |
1757 | ||
1758 | datapath_type = ofproto_normalize_type(datapath_type); | |
1759 | class = ofproto_class_find__(datapath_type); | |
1760 | ||
1761 | if (class && class->type_get_memory_usage) { | |
1762 | class->type_get_memory_usage(datapath_type, usage); | |
1763 | } | |
1764 | } | |
1765 | ||
bffc0589 | 1766 | void |
2cdcb898 | 1767 | ofproto_get_ofproto_controller_info(const struct ofproto *ofproto, |
bffc0589 AE |
1768 | struct shash *info) |
1769 | { | |
19a87e36 | 1770 | connmgr_get_controller_info(ofproto->connmgr, info); |
bffc0589 AE |
1771 | } |
1772 | ||
1773 | void | |
1774 | ofproto_free_ofproto_controller_info(struct shash *info) | |
1775 | { | |
72ba2ed3 | 1776 | connmgr_free_controller_info(info); |
bffc0589 AE |
1777 | } |
1778 | ||
b5827b24 BP |
1779 | /* Makes a deep copy of 'old' into 'port'. */ |
1780 | void | |
1781 | ofproto_port_clone(struct ofproto_port *port, const struct ofproto_port *old) | |
1782 | { | |
1783 | port->name = xstrdup(old->name); | |
1784 | port->type = xstrdup(old->type); | |
1785 | port->ofp_port = old->ofp_port; | |
1786 | } | |
1787 | ||
1788 | /* Frees memory allocated to members of 'ofproto_port'. | |
3a6ccc8c | 1789 | * |
b5827b24 BP |
1790 | * Do not call this function on an ofproto_port obtained from |
1791 | * ofproto_port_dump_next(): that function retains ownership of the data in the | |
1792 | * ofproto_port. */ | |
1793 | void | |
1794 | ofproto_port_destroy(struct ofproto_port *ofproto_port) | |
1795 | { | |
1796 | free(ofproto_port->name); | |
1797 | free(ofproto_port->type); | |
1798 | } | |
1799 | ||
b5827b24 | 1800 | /* Initializes 'dump' to begin dumping the ports in an ofproto. |
3a6ccc8c | 1801 | * |
b5827b24 BP |
1802 | * This function provides no status indication. An error status for the entire |
1803 | * dump operation is provided when it is completed by calling | |
1804 | * ofproto_port_dump_done(). | |
1805 | */ | |
1806 | void | |
1807 | ofproto_port_dump_start(struct ofproto_port_dump *dump, | |
1808 | const struct ofproto *ofproto) | |
1809 | { | |
abe529af BP |
1810 | dump->ofproto = ofproto; |
1811 | dump->error = ofproto->ofproto_class->port_dump_start(ofproto, | |
1812 | &dump->state); | |
b5827b24 BP |
1813 | } |
1814 | ||
1815 | /* Attempts to retrieve another port from 'dump', which must have been created | |
1816 | * with ofproto_port_dump_start(). On success, stores a new ofproto_port into | |
1817 | * 'port' and returns true. On failure, returns false. | |
1818 | * | |
1819 | * Failure might indicate an actual error or merely that the last port has been | |
1820 | * dumped. An error status for the entire dump operation is provided when it | |
1821 | * is completed by calling ofproto_port_dump_done(). | |
1822 | * | |
1823 | * The ofproto owns the data stored in 'port'. It will remain valid until at | |
1824 | * least the next time 'dump' is passed to ofproto_port_dump_next() or | |
1825 | * ofproto_port_dump_done(). */ | |
1826 | bool | |
1827 | ofproto_port_dump_next(struct ofproto_port_dump *dump, | |
1828 | struct ofproto_port *port) | |
1829 | { | |
abe529af BP |
1830 | const struct ofproto *ofproto = dump->ofproto; |
1831 | ||
1832 | if (dump->error) { | |
1833 | return false; | |
1834 | } | |
b5827b24 | 1835 | |
abe529af BP |
1836 | dump->error = ofproto->ofproto_class->port_dump_next(ofproto, dump->state, |
1837 | port); | |
1838 | if (dump->error) { | |
1839 | ofproto->ofproto_class->port_dump_done(ofproto, dump->state); | |
1840 | return false; | |
b5827b24 | 1841 | } |
abe529af | 1842 | return true; |
b5827b24 BP |
1843 | } |
1844 | ||
1845 | /* Completes port table dump operation 'dump', which must have been created | |
1846 | * with ofproto_port_dump_start(). Returns 0 if the dump operation was | |
1847 | * error-free, otherwise a positive errno value describing the problem. */ | |
3a6ccc8c | 1848 | int |
b5827b24 | 1849 | ofproto_port_dump_done(struct ofproto_port_dump *dump) |
3a6ccc8c | 1850 | { |
abe529af BP |
1851 | const struct ofproto *ofproto = dump->ofproto; |
1852 | if (!dump->error) { | |
1853 | dump->error = ofproto->ofproto_class->port_dump_done(ofproto, | |
1854 | dump->state); | |
1855 | } | |
1856 | return dump->error == EOF ? 0 : dump->error; | |
b5827b24 BP |
1857 | } |
1858 | ||
0aeaabc8 JP |
1859 | /* Returns the type to pass to netdev_open() when a datapath of type |
1860 | * 'datapath_type' has a port of type 'port_type', for a few special | |
1861 | * cases when a netdev type differs from a port type. For example, when | |
1862 | * using the userspace datapath, a port of type "internal" needs to be | |
1863 | * opened as "tap". | |
1864 | * | |
1865 | * Returns either 'type' itself or a string literal, which must not be | |
1866 | * freed. */ | |
1867 | const char * | |
1868 | ofproto_port_open_type(const char *datapath_type, const char *port_type) | |
1869 | { | |
1870 | const struct ofproto_class *class; | |
1871 | ||
1872 | datapath_type = ofproto_normalize_type(datapath_type); | |
1873 | class = ofproto_class_find__(datapath_type); | |
1874 | if (!class) { | |
1875 | return port_type; | |
1876 | } | |
1877 | ||
1878 | return (class->port_open_type | |
1879 | ? class->port_open_type(datapath_type, port_type) | |
1880 | : port_type); | |
1881 | } | |
1882 | ||
81816a5f JP |
1883 | /* Attempts to add 'netdev' as a port on 'ofproto'. If 'ofp_portp' is |
1884 | * non-null and '*ofp_portp' is not OFPP_NONE, attempts to use that as | |
1885 | * the port's OpenFlow port number. | |
1886 | * | |
1887 | * If successful, returns 0 and sets '*ofp_portp' to the new port's | |
1888 | * OpenFlow port number (if 'ofp_portp' is non-null). On failure, | |
1889 | * returns a positive errno value and sets '*ofp_portp' to OFPP_NONE (if | |
1890 | * 'ofp_portp' is non-null). */ | |
b5827b24 BP |
1891 | int |
1892 | ofproto_port_add(struct ofproto *ofproto, struct netdev *netdev, | |
4e022ec0 | 1893 | ofp_port_t *ofp_portp) |
b5827b24 | 1894 | { |
4e022ec0 | 1895 | ofp_port_t ofp_port = ofp_portp ? *ofp_portp : OFPP_NONE; |
3a6ccc8c BP |
1896 | int error; |
1897 | ||
e1b1d06a | 1898 | error = ofproto->ofproto_class->port_add(ofproto, netdev); |
1fa24dea | 1899 | if (!error) { |
e1b1d06a JP |
1900 | const char *netdev_name = netdev_get_name(netdev); |
1901 | ||
4e022ec0 AW |
1902 | simap_put(&ofproto->ofp_requests, netdev_name, |
1903 | ofp_to_u16(ofp_port)); | |
e1b1d06a | 1904 | update_port(ofproto, netdev_name); |
1fa24dea | 1905 | } |
b5827b24 | 1906 | if (ofp_portp) { |
17f69db5 BP |
1907 | *ofp_portp = OFPP_NONE; |
1908 | if (!error) { | |
1909 | struct ofproto_port ofproto_port; | |
1910 | ||
1911 | error = ofproto_port_query_by_name(ofproto, | |
1912 | netdev_get_name(netdev), | |
1913 | &ofproto_port); | |
1914 | if (!error) { | |
1915 | *ofp_portp = ofproto_port.ofp_port; | |
1916 | ofproto_port_destroy(&ofproto_port); | |
1917 | } | |
1918 | } | |
3a6ccc8c BP |
1919 | } |
1920 | return error; | |
1921 | } | |
1922 | ||
b5827b24 BP |
1923 | /* Looks up a port named 'devname' in 'ofproto'. On success, returns 0 and |
1924 | * initializes '*port' appropriately; on failure, returns a positive errno | |
1925 | * value. | |
1926 | * | |
abe529af | 1927 | * The caller owns the data in 'ofproto_port' and must free it with |
b5827b24 BP |
1928 | * ofproto_port_destroy() when it is no longer needed. */ |
1929 | int | |
1930 | ofproto_port_query_by_name(const struct ofproto *ofproto, const char *devname, | |
1931 | struct ofproto_port *port) | |
a4e2e1f2 | 1932 | { |
b5827b24 BP |
1933 | int error; |
1934 | ||
abe529af BP |
1935 | error = ofproto->ofproto_class->port_query_by_name(ofproto, devname, port); |
1936 | if (error) { | |
1937 | memset(port, 0, sizeof *port); | |
b5827b24 BP |
1938 | } |
1939 | return error; | |
a4e2e1f2 EJ |
1940 | } |
1941 | ||
b5827b24 | 1942 | /* Deletes port number 'ofp_port' from the datapath for 'ofproto'. |
3a6ccc8c | 1943 | * Returns 0 if successful, otherwise a positive errno. */ |
064af421 | 1944 | int |
4e022ec0 | 1945 | ofproto_port_del(struct ofproto *ofproto, ofp_port_t ofp_port) |
064af421 | 1946 | { |
abe529af | 1947 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1264ec95 | 1948 | const char *name = ofport ? netdev_get_name(ofport->netdev) : "<unknown>"; |
e1b1d06a | 1949 | struct simap_node *ofp_request_node; |
3cf10406 | 1950 | int error; |
cdee00fd | 1951 | |
e1b1d06a JP |
1952 | ofp_request_node = simap_find(&ofproto->ofp_requests, name); |
1953 | if (ofp_request_node) { | |
1954 | simap_delete(&ofproto->ofp_requests, ofp_request_node); | |
1955 | } | |
1956 | ||
abe529af | 1957 | error = ofproto->ofproto_class->port_del(ofproto, ofp_port); |
892815f5 | 1958 | if (!error && ofport) { |
1264ec95 BP |
1959 | /* 'name' is the netdev's name and update_port() is going to close the |
1960 | * netdev. Just in case update_port() refers to 'name' after it | |
3a6ccc8c BP |
1961 | * destroys 'ofport', make a copy of it around the update_port() |
1962 | * call. */ | |
1963 | char *devname = xstrdup(name); | |
1964 | update_port(ofproto, devname); | |
1965 | free(devname); | |
3cf10406 BP |
1966 | } |
1967 | return error; | |
064af421 BP |
1968 | } |
1969 | ||
276f6518 SH |
1970 | static void |
1971 | flow_mod_init(struct ofputil_flow_mod *fm, | |
eb391b76 | 1972 | const struct match *match, int priority, |
276f6518 SH |
1973 | const struct ofpact *ofpacts, size_t ofpacts_len, |
1974 | enum ofp_flow_mod_command command) | |
1975 | { | |
1976 | memset(fm, 0, sizeof *fm); | |
1977 | fm->match = *match; | |
1978 | fm->priority = priority; | |
1979 | fm->cookie = 0; | |
1980 | fm->new_cookie = 0; | |
1981 | fm->modify_cookie = false; | |
1982 | fm->table_id = 0; | |
1983 | fm->command = command; | |
1984 | fm->idle_timeout = 0; | |
1985 | fm->hard_timeout = 0; | |
ca26eb44 | 1986 | fm->importance = 0; |
276f6518 SH |
1987 | fm->buffer_id = UINT32_MAX; |
1988 | fm->out_port = OFPP_ANY; | |
1989 | fm->out_group = OFPG_ANY; | |
1990 | fm->flags = 0; | |
1991 | fm->ofpacts = CONST_CAST(struct ofpact *, ofpacts); | |
1992 | fm->ofpacts_len = ofpacts_len; | |
cc40d06b | 1993 | fm->delete_reason = OFPRR_DELETE; |
276f6518 SH |
1994 | } |
1995 | ||
97f63e57 BP |
1996 | static int |
1997 | simple_flow_mod(struct ofproto *ofproto, | |
eb391b76 | 1998 | const struct match *match, int priority, |
97f63e57 BP |
1999 | const struct ofpact *ofpacts, size_t ofpacts_len, |
2000 | enum ofp_flow_mod_command command) | |
2001 | { | |
2002 | struct ofputil_flow_mod fm; | |
2003 | ||
276f6518 | 2004 | flow_mod_init(&fm, match, priority, ofpacts, ofpacts_len, command); |
15aaf599 | 2005 | |
baae3d02 | 2006 | return handle_flow_mod__(ofproto, &fm, NULL); |
97f63e57 BP |
2007 | } |
2008 | ||
6c1491fb | 2009 | /* Adds a flow to OpenFlow flow table 0 in 'p' that matches 'cls_rule' and |
fa8b054f BP |
2010 | * performs the 'n_actions' actions in 'actions'. The new flow will not |
2011 | * timeout. | |
2012 | * | |
2013 | * If cls_rule->priority is in the range of priorities supported by OpenFlow | |
2014 | * (0...65535, inclusive) then the flow will be visible to OpenFlow | |
2015 | * controllers; otherwise, it will be hidden. | |
2016 | * | |
f25d0cf3 | 2017 | * The caller retains ownership of 'cls_rule' and 'ofpacts'. |
6c1491fb BP |
2018 | * |
2019 | * This is a helper function for in-band control and fail-open. */ | |
064af421 | 2020 | void |
81a76618 | 2021 | ofproto_add_flow(struct ofproto *ofproto, const struct match *match, |
eb391b76 | 2022 | int priority, |
f25d0cf3 | 2023 | const struct ofpact *ofpacts, size_t ofpacts_len) |
15aaf599 | 2024 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 2025 | { |
7ee20df1 | 2026 | const struct rule *rule; |
6f00e29b | 2027 | bool must_add; |
7ee20df1 | 2028 | |
97f63e57 BP |
2029 | /* First do a cheap check whether the rule we're looking for already exists |
2030 | * with the actions that we want. If it does, then we're done. */ | |
81a76618 BP |
2031 | rule = rule_from_cls_rule(classifier_find_match_exactly( |
2032 | &ofproto->tables[0].cls, match, priority)); | |
6f00e29b | 2033 | if (rule) { |
dc723c44 | 2034 | const struct rule_actions *actions = rule_get_actions(rule); |
06a0f3e2 | 2035 | must_add = !ofpacts_equal(actions->ofpacts, actions->ofpacts_len, |
6f00e29b | 2036 | ofpacts, ofpacts_len); |
6f00e29b BP |
2037 | } else { |
2038 | must_add = true; | |
2039 | } | |
97f63e57 BP |
2040 | |
2041 | /* If there's no such rule or the rule doesn't have the actions we want, | |
2042 | * fall back to a executing a full flow mod. We can't optimize this at | |
2043 | * all because we didn't take enough locks above to ensure that the flow | |
2044 | * table didn't already change beneath us. */ | |
6f00e29b | 2045 | if (must_add) { |
97f63e57 BP |
2046 | simple_flow_mod(ofproto, match, priority, ofpacts, ofpacts_len, |
2047 | OFPFC_MODIFY_STRICT); | |
7ee20df1 | 2048 | } |
064af421 BP |
2049 | } |
2050 | ||
75a75043 | 2051 | /* Executes the flow modification specified in 'fm'. Returns 0 on success, an |
90bf1e07 BP |
2052 | * OFPERR_* OpenFlow error code on failure, or OFPROTO_POSTPONE if the |
2053 | * operation cannot be initiated now but may be retried later. | |
75a75043 | 2054 | * |
1b63b91e BP |
2055 | * This is a helper function for in-band control and fail-open and the "learn" |
2056 | * action. */ | |
75a75043 | 2057 | int |
e3b56933 | 2058 | ofproto_flow_mod(struct ofproto *ofproto, struct ofputil_flow_mod *fm) |
15aaf599 | 2059 | OVS_EXCLUDED(ofproto_mutex) |
75a75043 | 2060 | { |
b90d6ee5 JR |
2061 | /* Optimize for the most common case of a repeated learn action. |
2062 | * If an identical flow already exists we only need to update its | |
2063 | * 'modified' time. */ | |
2064 | if (fm->command == OFPFC_MODIFY_STRICT && fm->table_id != OFPTT_ALL | |
2065 | && !(fm->flags & OFPUTIL_FF_RESET_COUNTS)) { | |
2066 | struct oftable *table = &ofproto->tables[fm->table_id]; | |
b90d6ee5 JR |
2067 | struct rule *rule; |
2068 | bool done = false; | |
2069 | ||
0ef165ec EJ |
2070 | rule = rule_from_cls_rule(classifier_find_match_exactly(&table->cls, |
2071 | &fm->match, | |
2072 | fm->priority)); | |
b90d6ee5 JR |
2073 | if (rule) { |
2074 | /* Reading many of the rule fields and writing on 'modified' | |
2075 | * requires the rule->mutex. Also, rule->actions may change | |
2076 | * if rule->mutex is not held. */ | |
06a0f3e2 BP |
2077 | const struct rule_actions *actions; |
2078 | ||
b90d6ee5 | 2079 | ovs_mutex_lock(&rule->mutex); |
06a0f3e2 | 2080 | actions = rule_get_actions(rule); |
b90d6ee5 JR |
2081 | if (rule->idle_timeout == fm->idle_timeout |
2082 | && rule->hard_timeout == fm->hard_timeout | |
ca26eb44 | 2083 | && rule->importance == fm->importance |
b90d6ee5 JR |
2084 | && rule->flags == (fm->flags & OFPUTIL_FF_STATE) |
2085 | && (!fm->modify_cookie || (fm->new_cookie == rule->flow_cookie)) | |
2086 | && ofpacts_equal(fm->ofpacts, fm->ofpacts_len, | |
06a0f3e2 | 2087 | actions->ofpacts, actions->ofpacts_len)) { |
b90d6ee5 JR |
2088 | /* Rule already exists and need not change, only update the |
2089 | modified timestamp. */ | |
2090 | rule->modified = time_msec(); | |
2091 | done = true; | |
2092 | } | |
2093 | ovs_mutex_unlock(&rule->mutex); | |
2094 | } | |
b90d6ee5 JR |
2095 | |
2096 | if (done) { | |
2097 | return 0; | |
2098 | } | |
2099 | } | |
2100 | ||
baae3d02 | 2101 | return handle_flow_mod__(ofproto, fm, NULL); |
75a75043 BP |
2102 | } |
2103 | ||
6c1491fb BP |
2104 | /* Searches for a rule with matching criteria exactly equal to 'target' in |
2105 | * ofproto's table 0 and, if it finds one, deletes it. | |
2106 | * | |
2107 | * This is a helper function for in-band control and fail-open. */ | |
b20f4073 | 2108 | void |
81a76618 | 2109 | ofproto_delete_flow(struct ofproto *ofproto, |
eb391b76 | 2110 | const struct match *target, int priority) |
15aaf599 | 2111 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 2112 | { |
8037acb4 | 2113 | struct classifier *cls = &ofproto->tables[0].cls; |
064af421 BP |
2114 | struct rule *rule; |
2115 | ||
97f63e57 BP |
2116 | /* First do a cheap check whether the rule we're looking for has already |
2117 | * been deleted. If so, then we're done. */ | |
8037acb4 BP |
2118 | rule = rule_from_cls_rule(classifier_find_match_exactly(cls, target, |
2119 | priority)); | |
834fe5cb BP |
2120 | if (!rule) { |
2121 | return; | |
bcf84111 | 2122 | } |
834fe5cb BP |
2123 | |
2124 | /* Execute a flow mod. We can't optimize this at all because we didn't | |
2125 | * take enough locks above to ensure that the flow table didn't already | |
2126 | * change beneath us. */ | |
2127 | simple_flow_mod(ofproto, target, priority, NULL, 0, OFPFC_DELETE_STRICT); | |
142e1f5c BP |
2128 | } |
2129 | ||
834fe5cb BP |
2130 | /* Delete all of the flows from all of ofproto's flow tables, then reintroduce |
2131 | * the flows required by in-band control and fail-open. */ | |
142e1f5c BP |
2132 | void |
2133 | ofproto_flush_flows(struct ofproto *ofproto) | |
2134 | { | |
7ee20df1 | 2135 | COVERAGE_INC(ofproto_flush); |
834fe5cb BP |
2136 | ofproto_flush__(ofproto); |
2137 | connmgr_flushed(ofproto->connmgr); | |
064af421 BP |
2138 | } |
2139 | \f | |
2140 | static void | |
2141 | reinit_ports(struct ofproto *p) | |
2142 | { | |
abe529af | 2143 | struct ofproto_port_dump dump; |
b3c01ed3 | 2144 | struct sset devnames; |
064af421 | 2145 | struct ofport *ofport; |
abe529af | 2146 | struct ofproto_port ofproto_port; |
b3c01ed3 | 2147 | const char *devname; |
064af421 | 2148 | |
898bf89d JP |
2149 | COVERAGE_INC(ofproto_reinit_ports); |
2150 | ||
b3c01ed3 | 2151 | sset_init(&devnames); |
4e8e4213 | 2152 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { |
1264ec95 | 2153 | sset_add(&devnames, netdev_get_name(ofport->netdev)); |
064af421 | 2154 | } |
abe529af BP |
2155 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { |
2156 | sset_add(&devnames, ofproto_port.name); | |
064af421 | 2157 | } |
064af421 | 2158 | |
b3c01ed3 BP |
2159 | SSET_FOR_EACH (devname, &devnames) { |
2160 | update_port(p, devname); | |
064af421 | 2161 | } |
b3c01ed3 | 2162 | sset_destroy(&devnames); |
064af421 BP |
2163 | } |
2164 | ||
4e022ec0 | 2165 | static ofp_port_t |
e1b1d06a JP |
2166 | alloc_ofp_port(struct ofproto *ofproto, const char *netdev_name) |
2167 | { | |
4e022ec0 | 2168 | uint16_t port_idx; |
e1b1d06a | 2169 | |
4e022ec0 | 2170 | port_idx = simap_get(&ofproto->ofp_requests, netdev_name); |
430dbb14 | 2171 | port_idx = port_idx ? port_idx : UINT16_MAX; |
4e022ec0 | 2172 | |
430dbb14 | 2173 | if (port_idx >= ofproto->max_ports |
fdcea803 GS |
2174 | || ofport_get_usage(ofproto, u16_to_ofp(port_idx)) == LLONG_MAX) { |
2175 | uint16_t lru_ofport = 0, end_port_no = ofproto->alloc_port_no; | |
2176 | long long int last_used_at, lru = LLONG_MAX; | |
e1b1d06a | 2177 | |
e1b1d06a JP |
2178 | /* Search for a free OpenFlow port number. We try not to |
2179 | * immediately reuse them to prevent problems due to old | |
484c8355 BP |
2180 | * flows. |
2181 | * | |
2182 | * We limit the automatically assigned port numbers to the lower half | |
2183 | * of the port range, to reserve the upper half for assignment by | |
2184 | * controllers. */ | |
6033d9d9 | 2185 | for (;;) { |
484c8355 | 2186 | if (++ofproto->alloc_port_no >= MIN(ofproto->max_ports, 32768)) { |
fdcea803 | 2187 | ofproto->alloc_port_no = 1; |
6033d9d9 | 2188 | } |
fdcea803 GS |
2189 | last_used_at = ofport_get_usage(ofproto, |
2190 | u16_to_ofp(ofproto->alloc_port_no)); | |
2191 | if (!last_used_at) { | |
430dbb14 | 2192 | port_idx = ofproto->alloc_port_no; |
6033d9d9 | 2193 | break; |
865b26a4 GS |
2194 | } else if ( last_used_at < time_msec() - 60*60*1000) { |
2195 | /* If the port with ofport 'ofproto->alloc_port_no' was deleted | |
2196 | * more than an hour ago, consider it usable. */ | |
2197 | ofport_remove_usage(ofproto, | |
2198 | u16_to_ofp(ofproto->alloc_port_no)); | |
2199 | port_idx = ofproto->alloc_port_no; | |
2200 | break; | |
fdcea803 GS |
2201 | } else if (last_used_at < lru) { |
2202 | lru = last_used_at; | |
2203 | lru_ofport = ofproto->alloc_port_no; | |
e1b1d06a | 2204 | } |
fdcea803 | 2205 | |
430dbb14 | 2206 | if (ofproto->alloc_port_no == end_port_no) { |
fdcea803 GS |
2207 | if (lru_ofport) { |
2208 | port_idx = lru_ofport; | |
2209 | break; | |
2210 | } | |
6033d9d9 | 2211 | return OFPP_NONE; |
e1b1d06a JP |
2212 | } |
2213 | } | |
2214 | } | |
fdcea803 | 2215 | ofport_set_usage(ofproto, u16_to_ofp(port_idx), LLONG_MAX); |
4e022ec0 | 2216 | return u16_to_ofp(port_idx); |
e1b1d06a JP |
2217 | } |
2218 | ||
2219 | static void | |
fdcea803 | 2220 | dealloc_ofp_port(struct ofproto *ofproto, ofp_port_t ofp_port) |
e1b1d06a | 2221 | { |
430dbb14 | 2222 | if (ofp_to_u16(ofp_port) < ofproto->max_ports) { |
fdcea803 | 2223 | ofport_set_usage(ofproto, ofp_port, time_msec()); |
40fa9417 | 2224 | } |
e1b1d06a JP |
2225 | } |
2226 | ||
fbfa2911 BP |
2227 | /* Opens and returns a netdev for 'ofproto_port' in 'ofproto', or a null |
2228 | * pointer if the netdev cannot be opened. On success, also fills in | |
d7d92203 | 2229 | * '*pp'. */ |
b33951b8 | 2230 | static struct netdev * |
e1b1d06a JP |
2231 | ofport_open(struct ofproto *ofproto, |
2232 | struct ofproto_port *ofproto_port, | |
9e1fd49b | 2233 | struct ofputil_phy_port *pp) |
064af421 BP |
2234 | { |
2235 | enum netdev_flags flags; | |
064af421 | 2236 | struct netdev *netdev; |
064af421 BP |
2237 | int error; |
2238 | ||
18812dff | 2239 | error = netdev_open(ofproto_port->name, ofproto_port->type, &netdev); |
064af421 | 2240 | if (error) { |
fbfa2911 | 2241 | VLOG_WARN_RL(&rl, "%s: ignoring port %s (%"PRIu16") because netdev %s " |
064af421 | 2242 | "cannot be opened (%s)", |
fbfa2911 | 2243 | ofproto->name, |
abe529af | 2244 | ofproto_port->name, ofproto_port->ofp_port, |
10a89ef0 | 2245 | ofproto_port->name, ovs_strerror(error)); |
064af421 BP |
2246 | return NULL; |
2247 | } | |
2248 | ||
e1b1d06a JP |
2249 | if (ofproto_port->ofp_port == OFPP_NONE) { |
2250 | if (!strcmp(ofproto->name, ofproto_port->name)) { | |
2251 | ofproto_port->ofp_port = OFPP_LOCAL; | |
2252 | } else { | |
2253 | ofproto_port->ofp_port = alloc_ofp_port(ofproto, | |
2254 | ofproto_port->name); | |
2255 | } | |
2256 | } | |
9e1fd49b BP |
2257 | pp->port_no = ofproto_port->ofp_port; |
2258 | netdev_get_etheraddr(netdev, pp->hw_addr); | |
2259 | ovs_strlcpy(pp->name, ofproto_port->name, sizeof pp->name); | |
064af421 | 2260 | netdev_get_flags(netdev, &flags); |
9e1fd49b BP |
2261 | pp->config = flags & NETDEV_UP ? 0 : OFPUTIL_PC_PORT_DOWN; |
2262 | pp->state = netdev_get_carrier(netdev) ? 0 : OFPUTIL_PS_LINK_DOWN; | |
2263 | netdev_get_features(netdev, &pp->curr, &pp->advertised, | |
2264 | &pp->supported, &pp->peer); | |
cd65125d BP |
2265 | pp->curr_speed = netdev_features_to_bps(pp->curr, 0) / 1000; |
2266 | pp->max_speed = netdev_features_to_bps(pp->supported, 0) / 1000; | |
118c4676 | 2267 | |
b33951b8 | 2268 | return netdev; |
064af421 BP |
2269 | } |
2270 | ||
b33951b8 | 2271 | /* Returns true if most fields of 'a' and 'b' are equal. Differences in name, |
d7d92203 | 2272 | * port number, and 'config' bits other than OFPUTIL_PC_PORT_DOWN are |
b33951b8 BP |
2273 | * disregarded. */ |
2274 | static bool | |
9e1fd49b BP |
2275 | ofport_equal(const struct ofputil_phy_port *a, |
2276 | const struct ofputil_phy_port *b) | |
064af421 | 2277 | { |
9e1fd49b | 2278 | return (eth_addr_equals(a->hw_addr, b->hw_addr) |
064af421 | 2279 | && a->state == b->state |
9e1fd49b | 2280 | && !((a->config ^ b->config) & OFPUTIL_PC_PORT_DOWN) |
064af421 BP |
2281 | && a->curr == b->curr |
2282 | && a->advertised == b->advertised | |
2283 | && a->supported == b->supported | |
9e1fd49b BP |
2284 | && a->peer == b->peer |
2285 | && a->curr_speed == b->curr_speed | |
2286 | && a->max_speed == b->max_speed); | |
064af421 BP |
2287 | } |
2288 | ||
b33951b8 BP |
2289 | /* Adds an ofport to 'p' initialized based on the given 'netdev' and 'opp'. |
2290 | * The caller must ensure that 'p' does not have a conflicting ofport (that is, | |
2291 | * one with the same name or port number). */ | |
064af421 | 2292 | static void |
b33951b8 | 2293 | ofport_install(struct ofproto *p, |
9e1fd49b | 2294 | struct netdev *netdev, const struct ofputil_phy_port *pp) |
064af421 | 2295 | { |
b33951b8 BP |
2296 | const char *netdev_name = netdev_get_name(netdev); |
2297 | struct ofport *ofport; | |
abe529af | 2298 | int error; |
72b06300 | 2299 | |
b33951b8 | 2300 | /* Create ofport. */ |
abe529af BP |
2301 | ofport = p->ofproto_class->port_alloc(); |
2302 | if (!ofport) { | |
2303 | error = ENOMEM; | |
2304 | goto error; | |
2305 | } | |
0f7d71a5 | 2306 | ofport->ofproto = p; |
b33951b8 | 2307 | ofport->netdev = netdev; |
61501798 | 2308 | ofport->change_seq = netdev_get_change_seq(netdev); |
9e1fd49b BP |
2309 | ofport->pp = *pp; |
2310 | ofport->ofp_port = pp->port_no; | |
65e0be10 | 2311 | ofport->created = time_msec(); |
b33951b8 BP |
2312 | |
2313 | /* Add port to 'p'. */ | |
4e022ec0 | 2314 | hmap_insert(&p->ports, &ofport->hmap_node, |
f9c0c3ec | 2315 | hash_ofp_port(ofport->ofp_port)); |
72b06300 | 2316 | shash_add(&p->port_by_name, netdev_name, ofport); |
abe529af | 2317 | |
ada3428f | 2318 | update_mtu(p, ofport); |
9197df76 | 2319 | |
abe529af BP |
2320 | /* Let the ofproto_class initialize its private data. */ |
2321 | error = p->ofproto_class->port_construct(ofport); | |
2322 | if (error) { | |
2323 | goto error; | |
2324 | } | |
2a6f78e0 | 2325 | connmgr_send_port_status(p->connmgr, NULL, pp, OFPPR_ADD); |
abe529af BP |
2326 | return; |
2327 | ||
2328 | error: | |
2329 | VLOG_WARN_RL(&rl, "%s: could not add port %s (%s)", | |
10a89ef0 | 2330 | p->name, netdev_name, ovs_strerror(error)); |
abe529af BP |
2331 | if (ofport) { |
2332 | ofport_destroy__(ofport); | |
2333 | } else { | |
2334 | netdev_close(netdev); | |
72b06300 | 2335 | } |
064af421 BP |
2336 | } |
2337 | ||
b33951b8 | 2338 | /* Removes 'ofport' from 'p' and destroys it. */ |
064af421 | 2339 | static void |
0f7d71a5 | 2340 | ofport_remove(struct ofport *ofport) |
064af421 | 2341 | { |
2a6f78e0 | 2342 | connmgr_send_port_status(ofport->ofproto->connmgr, NULL, &ofport->pp, |
fa066f01 | 2343 | OFPPR_DELETE); |
abe529af | 2344 | ofport_destroy(ofport); |
b33951b8 BP |
2345 | } |
2346 | ||
2347 | /* If 'ofproto' contains an ofport named 'name', removes it from 'ofproto' and | |
2348 | * destroys it. */ | |
2349 | static void | |
2350 | ofport_remove_with_name(struct ofproto *ofproto, const char *name) | |
2351 | { | |
2352 | struct ofport *port = shash_find_data(&ofproto->port_by_name, name); | |
2353 | if (port) { | |
0f7d71a5 | 2354 | ofport_remove(port); |
b33951b8 BP |
2355 | } |
2356 | } | |
2357 | ||
9e1fd49b | 2358 | /* Updates 'port' with new 'pp' description. |
b33951b8 BP |
2359 | * |
2360 | * Does not handle a name or port number change. The caller must implement | |
2361 | * such a change as a delete followed by an add. */ | |
2362 | static void | |
9e1fd49b | 2363 | ofport_modified(struct ofport *port, struct ofputil_phy_port *pp) |
b33951b8 | 2364 | { |
9e1fd49b BP |
2365 | memcpy(port->pp.hw_addr, pp->hw_addr, ETH_ADDR_LEN); |
2366 | port->pp.config = ((port->pp.config & ~OFPUTIL_PC_PORT_DOWN) | |
2367 | | (pp->config & OFPUTIL_PC_PORT_DOWN)); | |
53fd5c7c BP |
2368 | port->pp.state = ((port->pp.state & ~OFPUTIL_PS_LINK_DOWN) |
2369 | | (pp->state & OFPUTIL_PS_LINK_DOWN)); | |
9e1fd49b BP |
2370 | port->pp.curr = pp->curr; |
2371 | port->pp.advertised = pp->advertised; | |
2372 | port->pp.supported = pp->supported; | |
2373 | port->pp.peer = pp->peer; | |
2374 | port->pp.curr_speed = pp->curr_speed; | |
2375 | port->pp.max_speed = pp->max_speed; | |
b33951b8 | 2376 | |
2a6f78e0 BP |
2377 | connmgr_send_port_status(port->ofproto->connmgr, NULL, |
2378 | &port->pp, OFPPR_MODIFY); | |
064af421 BP |
2379 | } |
2380 | ||
5a2dfd47 JP |
2381 | /* Update OpenFlow 'state' in 'port' and notify controller. */ |
2382 | void | |
9e1fd49b | 2383 | ofproto_port_set_state(struct ofport *port, enum ofputil_port_state state) |
5a2dfd47 | 2384 | { |
9e1fd49b BP |
2385 | if (port->pp.state != state) { |
2386 | port->pp.state = state; | |
2a6f78e0 BP |
2387 | connmgr_send_port_status(port->ofproto->connmgr, NULL, |
2388 | &port->pp, OFPPR_MODIFY); | |
5a2dfd47 JP |
2389 | } |
2390 | } | |
2391 | ||
abe529af | 2392 | void |
4e022ec0 | 2393 | ofproto_port_unregister(struct ofproto *ofproto, ofp_port_t ofp_port) |
e7934396 | 2394 | { |
abe529af BP |
2395 | struct ofport *port = ofproto_get_port(ofproto, ofp_port); |
2396 | if (port) { | |
52a90c29 BP |
2397 | if (port->ofproto->ofproto_class->set_realdev) { |
2398 | port->ofproto->ofproto_class->set_realdev(port, 0, 0); | |
2399 | } | |
b308140a JP |
2400 | if (port->ofproto->ofproto_class->set_stp_port) { |
2401 | port->ofproto->ofproto_class->set_stp_port(port, NULL); | |
2402 | } | |
9efd308e DV |
2403 | if (port->ofproto->ofproto_class->set_rstp_port) { |
2404 | port->ofproto->ofproto_class->set_rstp_port(port, NULL); | |
2405 | } | |
abe529af | 2406 | if (port->ofproto->ofproto_class->set_cfm) { |
a5610457 | 2407 | port->ofproto->ofproto_class->set_cfm(port, NULL); |
abe529af BP |
2408 | } |
2409 | if (port->ofproto->ofproto_class->bundle_remove) { | |
2410 | port->ofproto->ofproto_class->bundle_remove(port); | |
e7934396 BP |
2411 | } |
2412 | } | |
2413 | } | |
2414 | ||
2415 | static void | |
abe529af | 2416 | ofport_destroy__(struct ofport *port) |
e7934396 | 2417 | { |
abe529af BP |
2418 | struct ofproto *ofproto = port->ofproto; |
2419 | const char *name = netdev_get_name(port->netdev); | |
fa066f01 | 2420 | |
abe529af BP |
2421 | hmap_remove(&ofproto->ports, &port->hmap_node); |
2422 | shash_delete(&ofproto->port_by_name, | |
2423 | shash_find(&ofproto->port_by_name, name)); | |
fa066f01 | 2424 | |
abe529af BP |
2425 | netdev_close(port->netdev); |
2426 | ofproto->ofproto_class->port_dealloc(port); | |
e7934396 BP |
2427 | } |
2428 | ||
064af421 | 2429 | static void |
abe529af | 2430 | ofport_destroy(struct ofport *port) |
064af421 | 2431 | { |
fa066f01 | 2432 | if (port) { |
e1b1d06a | 2433 | dealloc_ofp_port(port->ofproto, port->ofp_port); |
abe529af BP |
2434 | port->ofproto->ofproto_class->port_destruct(port); |
2435 | ofport_destroy__(port); | |
2436 | } | |
064af421 BP |
2437 | } |
2438 | ||
abe529af | 2439 | struct ofport * |
4e022ec0 | 2440 | ofproto_get_port(const struct ofproto *ofproto, ofp_port_t ofp_port) |
ca0f572c BP |
2441 | { |
2442 | struct ofport *port; | |
2443 | ||
f9c0c3ec | 2444 | HMAP_FOR_EACH_IN_BUCKET (port, hmap_node, hash_ofp_port(ofp_port), |
4e022ec0 | 2445 | &ofproto->ports) { |
abe529af | 2446 | if (port->ofp_port == ofp_port) { |
ca0f572c BP |
2447 | return port; |
2448 | } | |
2449 | } | |
2450 | return NULL; | |
2451 | } | |
2452 | ||
fdcea803 GS |
2453 | static long long int |
2454 | ofport_get_usage(const struct ofproto *ofproto, ofp_port_t ofp_port) | |
2455 | { | |
2456 | struct ofport_usage *usage; | |
2457 | ||
2458 | HMAP_FOR_EACH_IN_BUCKET (usage, hmap_node, hash_ofp_port(ofp_port), | |
2459 | &ofproto->ofport_usage) { | |
2460 | if (usage->ofp_port == ofp_port) { | |
2461 | return usage->last_used; | |
2462 | } | |
2463 | } | |
2464 | return 0; | |
2465 | } | |
2466 | ||
2467 | static void | |
2468 | ofport_set_usage(struct ofproto *ofproto, ofp_port_t ofp_port, | |
2469 | long long int last_used) | |
2470 | { | |
2471 | struct ofport_usage *usage; | |
2472 | HMAP_FOR_EACH_IN_BUCKET (usage, hmap_node, hash_ofp_port(ofp_port), | |
2473 | &ofproto->ofport_usage) { | |
2474 | if (usage->ofp_port == ofp_port) { | |
2475 | usage->last_used = last_used; | |
2476 | return; | |
2477 | } | |
2478 | } | |
2479 | ovs_assert(last_used == LLONG_MAX); | |
2480 | ||
2481 | usage = xmalloc(sizeof *usage); | |
2482 | usage->ofp_port = ofp_port; | |
2483 | usage->last_used = last_used; | |
2484 | hmap_insert(&ofproto->ofport_usage, &usage->hmap_node, | |
2485 | hash_ofp_port(ofp_port)); | |
2486 | } | |
2487 | ||
865b26a4 GS |
2488 | static void |
2489 | ofport_remove_usage(struct ofproto *ofproto, ofp_port_t ofp_port) | |
2490 | { | |
2491 | struct ofport_usage *usage; | |
2492 | HMAP_FOR_EACH_IN_BUCKET (usage, hmap_node, hash_ofp_port(ofp_port), | |
2493 | &ofproto->ofport_usage) { | |
2494 | if (usage->ofp_port == ofp_port) { | |
2495 | hmap_remove(&ofproto->ofport_usage, &usage->hmap_node); | |
2496 | free(usage); | |
2497 | break; | |
2498 | } | |
2499 | } | |
2500 | } | |
2501 | ||
6527c598 PS |
2502 | int |
2503 | ofproto_port_get_stats(const struct ofport *port, struct netdev_stats *stats) | |
2504 | { | |
2505 | struct ofproto *ofproto = port->ofproto; | |
2506 | int error; | |
2507 | ||
2508 | if (ofproto->ofproto_class->port_get_stats) { | |
2509 | error = ofproto->ofproto_class->port_get_stats(port, stats); | |
2510 | } else { | |
2511 | error = EOPNOTSUPP; | |
2512 | } | |
2513 | ||
2514 | return error; | |
2515 | } | |
2516 | ||
064af421 | 2517 | static void |
b33951b8 | 2518 | update_port(struct ofproto *ofproto, const char *name) |
064af421 | 2519 | { |
abe529af | 2520 | struct ofproto_port ofproto_port; |
9e1fd49b | 2521 | struct ofputil_phy_port pp; |
b33951b8 BP |
2522 | struct netdev *netdev; |
2523 | struct ofport *port; | |
064af421 BP |
2524 | |
2525 | COVERAGE_INC(ofproto_update_port); | |
c874dc6d | 2526 | |
b33951b8 | 2527 | /* Fetch 'name''s location and properties from the datapath. */ |
abe529af | 2528 | netdev = (!ofproto_port_query_by_name(ofproto, name, &ofproto_port) |
fbfa2911 | 2529 | ? ofport_open(ofproto, &ofproto_port, &pp) |
b33951b8 | 2530 | : NULL); |
4e022ec0 | 2531 | |
b33951b8 | 2532 | if (netdev) { |
abe529af | 2533 | port = ofproto_get_port(ofproto, ofproto_port.ofp_port); |
b33951b8 | 2534 | if (port && !strcmp(netdev_get_name(port->netdev), name)) { |
e65942a0 BP |
2535 | struct netdev *old_netdev = port->netdev; |
2536 | ||
b33951b8 | 2537 | /* 'name' hasn't changed location. Any properties changed? */ |
9e1fd49b BP |
2538 | if (!ofport_equal(&port->pp, &pp)) { |
2539 | ofport_modified(port, &pp); | |
abe529af BP |
2540 | } |
2541 | ||
ada3428f | 2542 | update_mtu(ofproto, port); |
9197df76 | 2543 | |
e65942a0 BP |
2544 | /* Install the newly opened netdev in case it has changed. |
2545 | * Don't close the old netdev yet in case port_modified has to | |
2546 | * remove a retained reference to it.*/ | |
abe529af | 2547 | port->netdev = netdev; |
61501798 | 2548 | port->change_seq = netdev_get_change_seq(netdev); |
abe529af BP |
2549 | |
2550 | if (port->ofproto->ofproto_class->port_modified) { | |
2551 | port->ofproto->ofproto_class->port_modified(port); | |
b33951b8 | 2552 | } |
e65942a0 BP |
2553 | |
2554 | netdev_close(old_netdev); | |
b33951b8 BP |
2555 | } else { |
2556 | /* If 'port' is nonnull then its name differs from 'name' and thus | |
2557 | * we should delete it. If we think there's a port named 'name' | |
2558 | * then its port number must be wrong now so delete it too. */ | |
2559 | if (port) { | |
0f7d71a5 | 2560 | ofport_remove(port); |
b33951b8 BP |
2561 | } |
2562 | ofport_remove_with_name(ofproto, name); | |
9e1fd49b | 2563 | ofport_install(ofproto, netdev, &pp); |
c874dc6d | 2564 | } |
b33951b8 BP |
2565 | } else { |
2566 | /* Any port named 'name' is gone now. */ | |
2567 | ofport_remove_with_name(ofproto, name); | |
c874dc6d | 2568 | } |
abe529af | 2569 | ofproto_port_destroy(&ofproto_port); |
064af421 BP |
2570 | } |
2571 | ||
2572 | static int | |
2573 | init_ports(struct ofproto *p) | |
2574 | { | |
abe529af BP |
2575 | struct ofproto_port_dump dump; |
2576 | struct ofproto_port ofproto_port; | |
e1b1d06a | 2577 | struct shash_node *node, *next; |
abe529af BP |
2578 | |
2579 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { | |
e1b1d06a JP |
2580 | const char *name = ofproto_port.name; |
2581 | ||
2582 | if (shash_find(&p->port_by_name, name)) { | |
fbfa2911 | 2583 | VLOG_WARN_RL(&rl, "%s: ignoring duplicate device %s in datapath", |
e1b1d06a | 2584 | p->name, name); |
abe529af | 2585 | } else { |
9e1fd49b | 2586 | struct ofputil_phy_port pp; |
b33951b8 BP |
2587 | struct netdev *netdev; |
2588 | ||
e1b1d06a JP |
2589 | /* Check if an OpenFlow port number had been requested. */ |
2590 | node = shash_find(&init_ofp_ports, name); | |
2591 | if (node) { | |
2592 | const struct iface_hint *iface_hint = node->data; | |
4e022ec0 AW |
2593 | simap_put(&p->ofp_requests, name, |
2594 | ofp_to_u16(iface_hint->ofp_port)); | |
e1b1d06a JP |
2595 | } |
2596 | ||
fbfa2911 | 2597 | netdev = ofport_open(p, &ofproto_port, &pp); |
b33951b8 | 2598 | if (netdev) { |
9e1fd49b | 2599 | ofport_install(p, netdev, &pp); |
430dbb14 | 2600 | if (ofp_to_u16(ofproto_port.ofp_port) < p->max_ports) { |
7c35397c | 2601 | p->alloc_port_no = MAX(p->alloc_port_no, |
430dbb14 | 2602 | ofp_to_u16(ofproto_port.ofp_port)); |
7c35397c | 2603 | } |
064af421 BP |
2604 | } |
2605 | } | |
2606 | } | |
b0ec0f27 | 2607 | |
e1b1d06a | 2608 | SHASH_FOR_EACH_SAFE(node, next, &init_ofp_ports) { |
4f9e08a5 | 2609 | struct iface_hint *iface_hint = node->data; |
e1b1d06a JP |
2610 | |
2611 | if (!strcmp(iface_hint->br_name, p->name)) { | |
2612 | free(iface_hint->br_name); | |
2613 | free(iface_hint->br_type); | |
4f9e08a5 | 2614 | free(iface_hint); |
e1b1d06a JP |
2615 | shash_delete(&init_ofp_ports, node); |
2616 | } | |
2617 | } | |
2618 | ||
064af421 BP |
2619 | return 0; |
2620 | } | |
9197df76 JP |
2621 | |
2622 | /* Find the minimum MTU of all non-datapath devices attached to 'p'. | |
2623 | * Returns ETH_PAYLOAD_MAX or the minimum of the ports. */ | |
2624 | static int | |
2625 | find_min_mtu(struct ofproto *p) | |
2626 | { | |
2627 | struct ofport *ofport; | |
2628 | int mtu = 0; | |
2629 | ||
2630 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
2631 | struct netdev *netdev = ofport->netdev; | |
2632 | int dev_mtu; | |
2633 | ||
2634 | /* Skip any internal ports, since that's what we're trying to | |
2635 | * set. */ | |
2636 | if (!strcmp(netdev_get_type(netdev), "internal")) { | |
2637 | continue; | |
2638 | } | |
2639 | ||
2640 | if (netdev_get_mtu(netdev, &dev_mtu)) { | |
2641 | continue; | |
2642 | } | |
2643 | if (!mtu || dev_mtu < mtu) { | |
2644 | mtu = dev_mtu; | |
2645 | } | |
2646 | } | |
2647 | ||
2648 | return mtu ? mtu: ETH_PAYLOAD_MAX; | |
2649 | } | |
2650 | ||
ada3428f PS |
2651 | /* Update MTU of all datapath devices on 'p' to the minimum of the |
2652 | * non-datapath ports in event of 'port' added or changed. */ | |
9197df76 | 2653 | static void |
ada3428f | 2654 | update_mtu(struct ofproto *p, struct ofport *port) |
9197df76 JP |
2655 | { |
2656 | struct ofport *ofport; | |
ada3428f PS |
2657 | struct netdev *netdev = port->netdev; |
2658 | int dev_mtu, old_min; | |
2659 | ||
2660 | if (netdev_get_mtu(netdev, &dev_mtu)) { | |
2661 | port->mtu = 0; | |
2662 | return; | |
2663 | } | |
2664 | if (!strcmp(netdev_get_type(port->netdev), "internal")) { | |
2665 | if (dev_mtu > p->min_mtu) { | |
2666 | if (!netdev_set_mtu(port->netdev, p->min_mtu)) { | |
2667 | dev_mtu = p->min_mtu; | |
2668 | } | |
2669 | } | |
2670 | port->mtu = dev_mtu; | |
2671 | return; | |
2672 | } | |
2673 | ||
2674 | /* For non-internal port find new min mtu. */ | |
2675 | old_min = p->min_mtu; | |
2676 | port->mtu = dev_mtu; | |
2677 | p->min_mtu = find_min_mtu(p); | |
2678 | if (p->min_mtu == old_min) { | |
2679 | return; | |
2680 | } | |
9197df76 JP |
2681 | |
2682 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
2683 | struct netdev *netdev = ofport->netdev; | |
2684 | ||
2685 | if (!strcmp(netdev_get_type(netdev), "internal")) { | |
ada3428f PS |
2686 | if (!netdev_set_mtu(netdev, p->min_mtu)) { |
2687 | ofport->mtu = p->min_mtu; | |
2688 | } | |
9197df76 JP |
2689 | } |
2690 | } | |
2691 | } | |
064af421 | 2692 | \f |
f416c8d6 JR |
2693 | static void |
2694 | ofproto_rule_destroy__(struct rule *rule) | |
2695 | OVS_NO_THREAD_SAFETY_ANALYSIS | |
2696 | { | |
2697 | cls_rule_destroy(CONST_CAST(struct cls_rule *, &rule->cr)); | |
2698 | rule_actions_destroy(rule_get_actions(rule)); | |
2699 | ovs_mutex_destroy(&rule->mutex); | |
2700 | rule->ofproto->ofproto_class->rule_dealloc(rule); | |
2701 | } | |
2702 | ||
2703 | static void | |
2704 | rule_destroy_cb(struct rule *rule) | |
2705 | { | |
2706 | rule->ofproto->ofproto_class->rule_destruct(rule); | |
2707 | ofproto_rule_destroy__(rule); | |
2708 | } | |
2709 | ||
a2143702 BP |
2710 | void |
2711 | ofproto_rule_ref(struct rule *rule) | |
064af421 | 2712 | { |
1eae3d33 | 2713 | if (rule) { |
37bec3d3 | 2714 | ovs_refcount_ref(&rule->ref_count); |
a2143702 BP |
2715 | } |
2716 | } | |
2717 | ||
f5d16e55 JR |
2718 | bool |
2719 | ofproto_rule_try_ref(struct rule *rule) | |
2720 | { | |
2721 | if (rule) { | |
2722 | return ovs_refcount_try_ref_rcu(&rule->ref_count); | |
2723 | } | |
2724 | return false; | |
2725 | } | |
2726 | ||
f416c8d6 JR |
2727 | /* Decrements 'rule''s ref_count and schedules 'rule' to be destroyed if the |
2728 | * ref_count reaches 0. | |
2729 | * | |
2730 | * Use of RCU allows short term use (between RCU quiescent periods) without | |
2731 | * keeping a reference. A reference must be taken if the rule needs to | |
2732 | * stay around accross the RCU quiescent periods. */ | |
a2143702 BP |
2733 | void |
2734 | ofproto_rule_unref(struct rule *rule) | |
2735 | { | |
24f83812 | 2736 | if (rule && ovs_refcount_unref_relaxed(&rule->ref_count) == 1) { |
f416c8d6 | 2737 | ovsrcu_postpone(rule_destroy_cb, rule); |
1eae3d33 | 2738 | } |
064af421 BP |
2739 | } |
2740 | ||
809c7548 RW |
2741 | void |
2742 | ofproto_group_ref(struct ofgroup *group) | |
2743 | { | |
2744 | if (group) { | |
2745 | ovs_refcount_ref(&group->ref_count); | |
2746 | } | |
2747 | } | |
2748 | ||
2749 | void | |
2750 | ofproto_group_unref(struct ofgroup *group) | |
2751 | { | |
2752 | if (group && ovs_refcount_unref(&group->ref_count) == 1) { | |
2753 | group->ofproto->ofproto_class->group_destruct(group); | |
2754 | ofputil_bucket_list_destroy(&group->buckets); | |
2755 | group->ofproto->ofproto_class->group_dealloc(group); | |
2756 | } | |
2757 | } | |
2758 | ||
65efd2ab JR |
2759 | static uint32_t get_provider_meter_id(const struct ofproto *, |
2760 | uint32_t of_meter_id); | |
2761 | ||
dc723c44 JR |
2762 | /* Creates and returns a new 'struct rule_actions', whose actions are a copy |
2763 | * of from the 'ofpacts_len' bytes of 'ofpacts'. */ | |
2764 | const struct rule_actions * | |
4c7562c5 | 2765 | rule_actions_create(const struct ofpact *ofpacts, size_t ofpacts_len) |
6f00e29b BP |
2766 | { |
2767 | struct rule_actions *actions; | |
2768 | ||
dc723c44 | 2769 | actions = xmalloc(sizeof *actions + ofpacts_len); |
6f00e29b | 2770 | actions->ofpacts_len = ofpacts_len; |
4c7562c5 | 2771 | actions->has_meter = ofpacts_get_meter(ofpacts, ofpacts_len) != 0; |
dc723c44 | 2772 | memcpy(actions->ofpacts, ofpacts, ofpacts_len); |
65efd2ab | 2773 | |
35f48b8b BP |
2774 | actions->has_learn_with_delete = (next_learn_with_delete(actions, NULL) |
2775 | != NULL); | |
2776 | ||
6f00e29b BP |
2777 | return actions; |
2778 | } | |
2779 | ||
dc723c44 | 2780 | /* Free the actions after the RCU quiescent period is reached. */ |
6f00e29b | 2781 | void |
dc723c44 | 2782 | rule_actions_destroy(const struct rule_actions *actions) |
6f00e29b | 2783 | { |
06a0f3e2 | 2784 | if (actions) { |
dc723c44 | 2785 | ovsrcu_postpone(free, CONST_CAST(struct rule_actions *, actions)); |
6f00e29b BP |
2786 | } |
2787 | } | |
2788 | ||
bcf84111 | 2789 | /* Returns true if 'rule' has an OpenFlow OFPAT_OUTPUT or OFPAT_ENQUEUE action |
f25d0cf3 | 2790 | * that outputs to 'port' (output to OFPP_FLOOD and OFPP_ALL doesn't count). */ |
cdbdeeda | 2791 | bool |
4e022ec0 | 2792 | ofproto_rule_has_out_port(const struct rule *rule, ofp_port_t port) |
15aaf599 | 2793 | OVS_REQUIRES(ofproto_mutex) |
064af421 | 2794 | { |
06a0f3e2 BP |
2795 | if (port == OFPP_ANY) { |
2796 | return true; | |
2797 | } else { | |
2798 | const struct rule_actions *actions = rule_get_actions(rule); | |
2799 | return ofpacts_output_to_port(actions->ofpacts, | |
2800 | actions->ofpacts_len, port); | |
2801 | } | |
064af421 BP |
2802 | } |
2803 | ||
7395c052 | 2804 | /* Returns true if 'rule' has group and equals group_id. */ |
74e79b7c | 2805 | static bool |
7395c052 | 2806 | ofproto_rule_has_out_group(const struct rule *rule, uint32_t group_id) |
15aaf599 | 2807 | OVS_REQUIRES(ofproto_mutex) |
7395c052 | 2808 | { |
06a0f3e2 BP |
2809 | if (group_id == OFPG_ANY) { |
2810 | return true; | |
2811 | } else { | |
2812 | const struct rule_actions *actions = rule_get_actions(rule); | |
2813 | return ofpacts_output_to_group(actions->ofpacts, | |
2814 | actions->ofpacts_len, group_id); | |
2815 | } | |
7395c052 NZ |
2816 | } |
2817 | ||
35412852 BP |
2818 | static void |
2819 | rule_execute_destroy(struct rule_execute *e) | |
eedc0097 | 2820 | { |
35412852 BP |
2821 | ofproto_rule_unref(e->rule); |
2822 | list_remove(&e->list_node); | |
2823 | free(e); | |
2824 | } | |
eedc0097 | 2825 | |
35412852 BP |
2826 | /* Executes all "rule_execute" operations queued up in ofproto->rule_executes, |
2827 | * by passing them to the ofproto provider. */ | |
2828 | static void | |
2829 | run_rule_executes(struct ofproto *ofproto) | |
15aaf599 | 2830 | OVS_EXCLUDED(ofproto_mutex) |
35412852 BP |
2831 | { |
2832 | struct rule_execute *e, *next; | |
ca6ba700 | 2833 | struct ovs_list executes; |
35412852 BP |
2834 | |
2835 | guarded_list_pop_all(&ofproto->rule_executes, &executes); | |
2836 | LIST_FOR_EACH_SAFE (e, next, list_node, &executes) { | |
35412852 BP |
2837 | struct flow flow; |
2838 | ||
cf62fa4c | 2839 | flow_extract(e->packet, &flow); |
b5e7e61a | 2840 | flow.in_port.ofp_port = e->in_port; |
35412852 BP |
2841 | ofproto->ofproto_class->rule_execute(e->rule, &flow, e->packet); |
2842 | ||
2843 | rule_execute_destroy(e); | |
2844 | } | |
2845 | } | |
2846 | ||
2847 | /* Destroys and discards all "rule_execute" operations queued up in | |
2848 | * ofproto->rule_executes. */ | |
2849 | static void | |
2850 | destroy_rule_executes(struct ofproto *ofproto) | |
2851 | { | |
2852 | struct rule_execute *e, *next; | |
ca6ba700 | 2853 | struct ovs_list executes; |
35412852 BP |
2854 | |
2855 | guarded_list_pop_all(&ofproto->rule_executes, &executes); | |
2856 | LIST_FOR_EACH_SAFE (e, next, list_node, &executes) { | |
cf62fa4c | 2857 | dp_packet_delete(e->packet); |
35412852 BP |
2858 | rule_execute_destroy(e); |
2859 | } | |
350a665f BP |
2860 | } |
2861 | ||
adcf00ba | 2862 | static bool |
834fe5cb | 2863 | rule_is_readonly(const struct rule *rule) |
5c67e4af | 2864 | { |
834fe5cb BP |
2865 | const struct oftable *table = &rule->ofproto->tables[rule->table_id]; |
2866 | return (table->flags & OFTABLE_READONLY) != 0; | |
5c67e4af | 2867 | } |
fa066f01 | 2868 | \f |
35f48b8b BP |
2869 | static uint32_t |
2870 | hash_learned_cookie(ovs_be64 cookie_, uint8_t table_id) | |
2871 | { | |
2872 | uint64_t cookie = (OVS_FORCE uint64_t) cookie_; | |
2873 | return hash_3words(cookie, cookie >> 32, table_id); | |
2874 | } | |
2875 | ||
2876 | static void | |
2877 | learned_cookies_update_one__(struct ofproto *ofproto, | |
2878 | const struct ofpact_learn *learn, | |
ca6ba700 | 2879 | int delta, struct ovs_list *dead_cookies) |
35f48b8b BP |
2880 | OVS_REQUIRES(ofproto_mutex) |
2881 | { | |
2882 | uint32_t hash = hash_learned_cookie(learn->cookie, learn->table_id); | |
2883 | struct learned_cookie *c; | |
2884 | ||
2885 | HMAP_FOR_EACH_WITH_HASH (c, u.hmap_node, hash, &ofproto->learned_cookies) { | |
2886 | if (c->cookie == learn->cookie && c->table_id == learn->table_id) { | |
2887 | c->n += delta; | |
2888 | ovs_assert(c->n >= 0); | |
2889 | ||
2890 | if (!c->n) { | |
2891 | hmap_remove(&ofproto->learned_cookies, &c->u.hmap_node); | |
2892 | list_push_back(dead_cookies, &c->u.list_node); | |
2893 | } | |
2894 | ||
2895 | return; | |
2896 | } | |
2897 | } | |
2898 | ||
2899 | ovs_assert(delta > 0); | |
2900 | c = xmalloc(sizeof *c); | |
2901 | hmap_insert(&ofproto->learned_cookies, &c->u.hmap_node, hash); | |
2902 | c->cookie = learn->cookie; | |
2903 | c->table_id = learn->table_id; | |
2904 | c->n = delta; | |
2905 | } | |
2906 | ||
2907 | static const struct ofpact_learn * | |
2908 | next_learn_with_delete(const struct rule_actions *actions, | |
2909 | const struct ofpact_learn *start) | |
2910 | { | |
2911 | const struct ofpact *pos; | |
2912 | ||
2913 | for (pos = start ? ofpact_next(&start->ofpact) : actions->ofpacts; | |
2914 | pos < ofpact_end(actions->ofpacts, actions->ofpacts_len); | |
2915 | pos = ofpact_next(pos)) { | |
2916 | if (pos->type == OFPACT_LEARN) { | |
2917 | const struct ofpact_learn *learn = ofpact_get_LEARN(pos); | |
2918 | if (learn->flags & NX_LEARN_F_DELETE_LEARNED) { | |
2919 | return learn; | |
2920 | } | |
2921 | } | |
2922 | } | |
2923 | ||
2924 | return NULL; | |
2925 | } | |
2926 | ||
2927 | static void | |
2928 | learned_cookies_update__(struct ofproto *ofproto, | |
2929 | const struct rule_actions *actions, | |
ca6ba700 | 2930 | int delta, struct ovs_list *dead_cookies) |
35f48b8b BP |
2931 | OVS_REQUIRES(ofproto_mutex) |
2932 | { | |
2933 | if (actions->has_learn_with_delete) { | |
2934 | const struct ofpact_learn *learn; | |
2935 | ||
2936 | for (learn = next_learn_with_delete(actions, NULL); learn; | |
2937 | learn = next_learn_with_delete(actions, learn)) { | |
2938 | learned_cookies_update_one__(ofproto, learn, delta, dead_cookies); | |
2939 | } | |
2940 | } | |
2941 | } | |
2942 | ||
2943 | static void | |
2944 | learned_cookies_inc(struct ofproto *ofproto, | |
2945 | const struct rule_actions *actions) | |
2946 | OVS_REQUIRES(ofproto_mutex) | |
2947 | { | |
2948 | learned_cookies_update__(ofproto, actions, +1, NULL); | |
2949 | } | |
2950 | ||
2951 | static void | |
2952 | learned_cookies_dec(struct ofproto *ofproto, | |
2953 | const struct rule_actions *actions, | |
ca6ba700 | 2954 | struct ovs_list *dead_cookies) |
35f48b8b BP |
2955 | OVS_REQUIRES(ofproto_mutex) |
2956 | { | |
2957 | learned_cookies_update__(ofproto, actions, -1, dead_cookies); | |
2958 | } | |
2959 | ||
2960 | static void | |
ca6ba700 | 2961 | learned_cookies_flush(struct ofproto *ofproto, struct ovs_list *dead_cookies) |
35f48b8b BP |
2962 | OVS_REQUIRES(ofproto_mutex) |
2963 | { | |
5f03c983 | 2964 | struct learned_cookie *c; |
35f48b8b | 2965 | |
5f03c983 | 2966 | LIST_FOR_EACH_POP (c, u.list_node, dead_cookies) { |
35f48b8b BP |
2967 | struct rule_criteria criteria; |
2968 | struct rule_collection rules; | |
2969 | struct match match; | |
2970 | ||
2971 | match_init_catchall(&match); | |
2972 | rule_criteria_init(&criteria, c->table_id, &match, 0, | |
2973 | c->cookie, OVS_BE64_MAX, OFPP_ANY, OFPG_ANY); | |
2974 | rule_criteria_require_rw(&criteria, false); | |
2975 | collect_rules_loose(ofproto, &criteria, &rules); | |
2976 | delete_flows__(&rules, OFPRR_DELETE, NULL); | |
2977 | rule_criteria_destroy(&criteria); | |
2978 | rule_collection_destroy(&rules); | |
2979 | ||
35f48b8b BP |
2980 | free(c); |
2981 | } | |
2982 | } | |
2983 | \f | |
90bf1e07 | 2984 | static enum ofperr |
d1e2cf21 | 2985 | handle_echo_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 2986 | { |
b0421aa2 | 2987 | ofconn_send_reply(ofconn, make_echo_reply(oh)); |
064af421 | 2988 | return 0; |
064af421 BP |
2989 | } |
2990 | ||
3c1bb396 BP |
2991 | static void |
2992 | query_tables(struct ofproto *ofproto, | |
2993 | struct ofputil_table_features **featuresp, | |
2994 | struct ofputil_table_stats **statsp) | |
2995 | { | |
178742f9 BP |
2996 | struct mf_bitmap rw_fields = oxm_writable_fields(); |
2997 | struct mf_bitmap match = oxm_matchable_fields(); | |
2998 | struct mf_bitmap mask = oxm_maskable_fields(); | |
3c1bb396 BP |
2999 | |
3000 | struct ofputil_table_features *features; | |
3001 | struct ofputil_table_stats *stats; | |
3002 | int i; | |
3003 | ||
3c1bb396 BP |
3004 | features = *featuresp = xcalloc(ofproto->n_tables, sizeof *features); |
3005 | for (i = 0; i < ofproto->n_tables; i++) { | |
3006 | struct ofputil_table_features *f = &features[i]; | |
3007 | ||
3008 | f->table_id = i; | |
3009 | sprintf(f->name, "table%d", i); | |
3010 | f->metadata_match = OVS_BE64_MAX; | |
3011 | f->metadata_write = OVS_BE64_MAX; | |
afcea9ea | 3012 | atomic_read_relaxed(&ofproto->tables[i].miss_config, &f->miss_config); |
3c1bb396 BP |
3013 | f->max_entries = 1000000; |
3014 | ||
5dc7516b BP |
3015 | bool more_tables = false; |
3016 | for (int j = i + 1; j < ofproto->n_tables; j++) { | |
3017 | if (!(ofproto->tables[j].flags & OFTABLE_HIDDEN)) { | |
3018 | bitmap_set1(f->nonmiss.next, j); | |
3019 | more_tables = true; | |
3020 | } | |
3021 | } | |
3c1bb396 | 3022 | f->nonmiss.instructions = (1u << N_OVS_INSTRUCTIONS) - 1; |
5dc7516b | 3023 | if (!more_tables) { |
3c1bb396 BP |
3024 | f->nonmiss.instructions &= ~(1u << OVSINST_OFPIT11_GOTO_TABLE); |
3025 | } | |
3026 | f->nonmiss.write.ofpacts = (UINT64_C(1) << N_OFPACTS) - 1; | |
3027 | f->nonmiss.write.set_fields = rw_fields; | |
3028 | f->nonmiss.apply = f->nonmiss.write; | |
3029 | f->miss = f->nonmiss; | |
3030 | ||
3031 | f->match = match; | |
3032 | f->mask = mask; | |
3033 | f->wildcard = match; | |
3034 | } | |
3035 | ||
3036 | if (statsp) { | |
3037 | stats = *statsp = xcalloc(ofproto->n_tables, sizeof *stats); | |
3038 | for (i = 0; i < ofproto->n_tables; i++) { | |
3039 | struct ofputil_table_stats *s = &stats[i]; | |
3040 | struct classifier *cls = &ofproto->tables[i].cls; | |
3041 | ||
3042 | s->table_id = i; | |
3043 | s->active_count = classifier_count(cls); | |
3fbbcba7 BP |
3044 | if (i == 0) { |
3045 | s->active_count -= connmgr_count_hidden_rules( | |
3046 | ofproto->connmgr); | |
3047 | } | |
3c1bb396 BP |
3048 | } |
3049 | } else { | |
3050 | stats = NULL; | |
3051 | } | |
3052 | ||
3053 | ofproto->ofproto_class->query_tables(ofproto, features, stats); | |
3054 | ||
3055 | for (i = 0; i < ofproto->n_tables; i++) { | |
3056 | const struct oftable *table = &ofproto->tables[i]; | |
3057 | struct ofputil_table_features *f = &features[i]; | |
3058 | ||
3059 | if (table->name) { | |
3060 | ovs_strzcpy(f->name, table->name, sizeof f->name); | |
3061 | } | |
3062 | ||
3063 | if (table->max_flows < f->max_entries) { | |
3064 | f->max_entries = table->max_flows; | |
3065 | } | |
3066 | } | |
3067 | } | |
3068 | ||
3069 | static void | |
3070 | query_switch_features(struct ofproto *ofproto, | |
3071 | bool *arp_match_ip, uint64_t *ofpacts) | |
3072 | { | |
3073 | struct ofputil_table_features *features, *f; | |
3074 | ||
3075 | *arp_match_ip = false; | |
3076 | *ofpacts = 0; | |
3077 | ||
3078 | query_tables(ofproto, &features, NULL); | |
3079 | for (f = features; f < &features[ofproto->n_tables]; f++) { | |
3080 | *ofpacts |= f->nonmiss.apply.ofpacts | f->miss.apply.ofpacts; | |
3081 | if (bitmap_is_set(f->match.bm, MFF_ARP_SPA) || | |
3082 | bitmap_is_set(f->match.bm, MFF_ARP_TPA)) { | |
3083 | *arp_match_ip = true; | |
3084 | } | |
3085 | } | |
3086 | free(features); | |
3087 | ||
3088 | /* Sanity check. */ | |
3089 | ovs_assert(*ofpacts & (UINT64_C(1) << OFPACT_OUTPUT)); | |
3090 | } | |
3091 | ||
90bf1e07 | 3092 | static enum ofperr |
d1e2cf21 | 3093 | handle_features_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3094 | { |
64ff1d96 | 3095 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
9e1fd49b | 3096 | struct ofputil_switch_features features; |
064af421 | 3097 | struct ofport *port; |
6c1491fb | 3098 | bool arp_match_ip; |
9e1fd49b | 3099 | struct ofpbuf *b; |
064af421 | 3100 | |
3c1bb396 | 3101 | query_switch_features(ofproto, &arp_match_ip, &features.ofpacts); |
064af421 | 3102 | |
9e1fd49b BP |
3103 | features.datapath_id = ofproto->datapath_id; |
3104 | features.n_buffers = pktbuf_capacity(); | |
adcf00ba | 3105 | features.n_tables = ofproto_get_n_visible_tables(ofproto); |
9e1fd49b | 3106 | features.capabilities = (OFPUTIL_C_FLOW_STATS | OFPUTIL_C_TABLE_STATS | |
4efe455d BP |
3107 | OFPUTIL_C_PORT_STATS | OFPUTIL_C_QUEUE_STATS | |
3108 | OFPUTIL_C_GROUP_STATS); | |
6c1491fb | 3109 | if (arp_match_ip) { |
9e1fd49b | 3110 | features.capabilities |= OFPUTIL_C_ARP_MATCH_IP; |
6c1491fb | 3111 | } |
2e1ae200 JR |
3112 | /* FIXME: Fill in proper features.auxiliary_id for auxiliary connections */ |
3113 | features.auxiliary_id = 0; | |
9e1fd49b BP |
3114 | b = ofputil_encode_switch_features(&features, ofconn_get_protocol(ofconn), |
3115 | oh->xid); | |
64ff1d96 | 3116 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
9e1fd49b | 3117 | ofputil_put_switch_features_port(&port->pp, b); |
064af421 | 3118 | } |
064af421 | 3119 | |
9e1fd49b | 3120 | ofconn_send_reply(ofconn, b); |
064af421 BP |
3121 | return 0; |
3122 | } | |
064af421 | 3123 | |
90bf1e07 | 3124 | static enum ofperr |
d1e2cf21 | 3125 | handle_get_config_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3126 | { |
64ff1d96 | 3127 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
064af421 | 3128 | struct ofp_switch_config *osc; |
f0fd1a17 | 3129 | enum ofp_config_flags flags; |
7257b535 | 3130 | struct ofpbuf *buf; |
959a2ecd | 3131 | |
064af421 | 3132 | /* Send reply. */ |
982697a4 BP |
3133 | buf = ofpraw_alloc_reply(OFPRAW_OFPT_GET_CONFIG_REPLY, oh, 0); |
3134 | osc = ofpbuf_put_uninit(buf, sizeof *osc); | |
f0fd1a17 | 3135 | flags = ofproto->frag_handling; |
2e1ae200 JR |
3136 | /* OFPC_INVALID_TTL_TO_CONTROLLER is deprecated in OF 1.3 */ |
3137 | if (oh->version < OFP13_VERSION | |
3138 | && ofconn_get_invalid_ttl_to_controller(ofconn)) { | |
f0fd1a17 PS |
3139 | flags |= OFPC_INVALID_TTL_TO_CONTROLLER; |
3140 | } | |
3141 | osc->flags = htons(flags); | |
810605a2 | 3142 | osc->miss_send_len = htons(ofconn_get_miss_send_len(ofconn)); |
b0421aa2 | 3143 | ofconn_send_reply(ofconn, buf); |
2d70a31a | 3144 | |
064af421 BP |
3145 | return 0; |
3146 | } | |
064af421 | 3147 | |
90bf1e07 | 3148 | static enum ofperr |
982697a4 | 3149 | handle_set_config(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3150 | { |
982697a4 | 3151 | const struct ofp_switch_config *osc = ofpmsg_body(oh); |
64ff1d96 | 3152 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
d1e2cf21 | 3153 | uint16_t flags = ntohs(osc->flags); |
2d70a31a | 3154 | |
7257b535 | 3155 | if (ofconn_get_type(ofconn) != OFCONN_PRIMARY |
f4f1ea7e | 3156 | || ofconn_get_role(ofconn) != OFPCR12_ROLE_SLAVE) { |
7257b535 BP |
3157 | enum ofp_config_flags cur = ofproto->frag_handling; |
3158 | enum ofp_config_flags next = flags & OFPC_FRAG_MASK; | |
3159 | ||
cb22974d | 3160 | ovs_assert((cur & OFPC_FRAG_MASK) == cur); |
7257b535 BP |
3161 | if (cur != next) { |
3162 | if (ofproto->ofproto_class->set_frag_handling(ofproto, next)) { | |
3163 | ofproto->frag_handling = next; | |
3164 | } else { | |
3165 | VLOG_WARN_RL(&rl, "%s: unsupported fragment handling mode %s", | |
3166 | ofproto->name, | |
3167 | ofputil_frag_handling_to_string(next)); | |
3168 | } | |
064af421 BP |
3169 | } |
3170 | } | |
2e1ae200 | 3171 | /* OFPC_INVALID_TTL_TO_CONTROLLER is deprecated in OF 1.3 */ |
f0fd1a17 | 3172 | ofconn_set_invalid_ttl_to_controller(ofconn, |
2e1ae200 JR |
3173 | (oh->version < OFP13_VERSION |
3174 | && flags & OFPC_INVALID_TTL_TO_CONTROLLER)); | |
ebe482fd | 3175 | |
810605a2 | 3176 | ofconn_set_miss_send_len(ofconn, ntohs(osc->miss_send_len)); |
0ad9b732 | 3177 | |
064af421 | 3178 | return 0; |
064af421 BP |
3179 | } |
3180 | ||
9deba63b | 3181 | /* Checks whether 'ofconn' is a slave controller. If so, returns an OpenFlow |
90bf1e07 BP |
3182 | * error message code for the caller to propagate upward. Otherwise, returns |
3183 | * 0. | |
3184 | * | |
3185 | * The log message mentions 'msg_type'. */ | |
3186 | static enum ofperr | |
3187 | reject_slave_controller(struct ofconn *ofconn) | |
9deba63b | 3188 | { |
1ce0a5fa | 3189 | if (ofconn_get_type(ofconn) == OFCONN_PRIMARY |
f4f1ea7e | 3190 | && ofconn_get_role(ofconn) == OFPCR12_ROLE_SLAVE) { |
20e4ec1a | 3191 | return OFPERR_OFPBRC_IS_SLAVE; |
9deba63b BP |
3192 | } else { |
3193 | return 0; | |
3194 | } | |
3195 | } | |
3196 | ||
7e9f8266 BP |
3197 | /* Checks that the 'ofpacts_len' bytes of action in 'ofpacts' are appropriate |
3198 | * for 'ofproto': | |
3199 | * | |
3200 | * - If they use a meter, then 'ofproto' has that meter configured. | |
3201 | * | |
3202 | * - If they use any groups, then 'ofproto' has that group configured. | |
3203 | * | |
3204 | * Returns 0 if successful, otherwise an OpenFlow error. */ | |
9cae45dc JR |
3205 | static enum ofperr |
3206 | ofproto_check_ofpacts(struct ofproto *ofproto, | |
7e9f8266 | 3207 | const struct ofpact ofpacts[], size_t ofpacts_len) |
9cae45dc | 3208 | { |
84d68566 | 3209 | const struct ofpact *a; |
9cae45dc JR |
3210 | uint32_t mid; |
3211 | ||
7e9f8266 BP |
3212 | mid = ofpacts_get_meter(ofpacts, ofpacts_len); |
3213 | if (mid && get_provider_meter_id(ofproto, mid) == UINT32_MAX) { | |
3214 | return OFPERR_OFPMMFC_INVALID_METER; | |
9cae45dc JR |
3215 | } |
3216 | ||
84d68566 | 3217 | OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) { |
7e9f8266 BP |
3218 | if (a->type == OFPACT_GROUP |
3219 | && !ofproto_group_exists(ofproto, ofpact_get_GROUP(a)->group_id)) { | |
3220 | return OFPERR_OFPBAC_BAD_OUT_GROUP; | |
84d68566 SH |
3221 | } |
3222 | } | |
3223 | ||
9cae45dc JR |
3224 | return 0; |
3225 | } | |
3226 | ||
90bf1e07 | 3227 | static enum ofperr |
982697a4 | 3228 | handle_packet_out(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3229 | { |
64ff1d96 | 3230 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
c6a93eb7 | 3231 | struct ofputil_packet_out po; |
cf62fa4c | 3232 | struct dp_packet *payload; |
f25d0cf3 BP |
3233 | uint64_t ofpacts_stub[1024 / 8]; |
3234 | struct ofpbuf ofpacts; | |
ae412e7d | 3235 | struct flow flow; |
90bf1e07 | 3236 | enum ofperr error; |
064af421 | 3237 | |
ac51afaf BP |
3238 | COVERAGE_INC(ofproto_packet_out); |
3239 | ||
76589937 | 3240 | error = reject_slave_controller(ofconn); |
9deba63b | 3241 | if (error) { |
f25d0cf3 | 3242 | goto exit; |
9deba63b BP |
3243 | } |
3244 | ||
c6a93eb7 | 3245 | /* Decode message. */ |
f25d0cf3 | 3246 | ofpbuf_use_stub(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); |
982697a4 | 3247 | error = ofputil_decode_packet_out(&po, oh, &ofpacts); |
064af421 | 3248 | if (error) { |
f25d0cf3 | 3249 | goto exit_free_ofpacts; |
064af421 | 3250 | } |
430dbb14 | 3251 | if (ofp_to_u16(po.in_port) >= p->max_ports |
4e022ec0 | 3252 | && ofp_to_u16(po.in_port) < ofp_to_u16(OFPP_MAX)) { |
2e1bfcb6 | 3253 | error = OFPERR_OFPBRC_BAD_PORT; |
91858960 BP |
3254 | goto exit_free_ofpacts; |
3255 | } | |
064af421 | 3256 | |
ac51afaf | 3257 | /* Get payload. */ |
c6a93eb7 BP |
3258 | if (po.buffer_id != UINT32_MAX) { |
3259 | error = ofconn_pktbuf_retrieve(ofconn, po.buffer_id, &payload, NULL); | |
3260 | if (error || !payload) { | |
f25d0cf3 | 3261 | goto exit_free_ofpacts; |
064af421 | 3262 | } |
064af421 | 3263 | } else { |
bb622f82 | 3264 | /* Ensure that the L3 header is 32-bit aligned. */ |
cf62fa4c | 3265 | payload = dp_packet_clone_data_with_headroom(po.packet, po.packet_len, 2); |
e1154f71 BP |
3266 | } |
3267 | ||
548de4dd | 3268 | /* Verify actions against packet, then send packet if successful. */ |
cf62fa4c | 3269 | flow_extract(payload, &flow); |
b5e7e61a | 3270 | flow.in_port.ofp_port = po.in_port; |
7e9f8266 | 3271 | error = ofproto_check_ofpacts(p, po.ofpacts, po.ofpacts_len); |
548de4dd BP |
3272 | if (!error) { |
3273 | error = p->ofproto_class->packet_out(p, payload, &flow, | |
3274 | po.ofpacts, po.ofpacts_len); | |
3275 | } | |
cf62fa4c | 3276 | dp_packet_delete(payload); |
abe529af | 3277 | |
f25d0cf3 BP |
3278 | exit_free_ofpacts: |
3279 | ofpbuf_uninit(&ofpacts); | |
3280 | exit: | |
abe529af | 3281 | return error; |
064af421 BP |
3282 | } |
3283 | ||
3284 | static void | |
2a6f78e0 | 3285 | update_port_config(struct ofconn *ofconn, struct ofport *port, |
9e1fd49b BP |
3286 | enum ofputil_port_config config, |
3287 | enum ofputil_port_config mask) | |
064af421 | 3288 | { |
2a6f78e0 | 3289 | enum ofputil_port_config toggle = (config ^ port->pp.config) & mask; |
abe529af | 3290 | |
2a6f78e0 BP |
3291 | if (toggle & OFPUTIL_PC_PORT_DOWN |
3292 | && (config & OFPUTIL_PC_PORT_DOWN | |
3293 | ? netdev_turn_flags_off(port->netdev, NETDEV_UP, NULL) | |
3294 | : netdev_turn_flags_on(port->netdev, NETDEV_UP, NULL))) { | |
3295 | /* We tried to bring the port up or down, but it failed, so don't | |
3296 | * update the "down" bit. */ | |
9e1fd49b | 3297 | toggle &= ~OFPUTIL_PC_PORT_DOWN; |
064af421 | 3298 | } |
abe529af | 3299 | |
2a6f78e0 BP |
3300 | if (toggle) { |
3301 | enum ofputil_port_config old_config = port->pp.config; | |
3302 | port->pp.config ^= toggle; | |
abe529af | 3303 | port->ofproto->ofproto_class->port_reconfigured(port, old_config); |
2a6f78e0 BP |
3304 | connmgr_send_port_status(port->ofproto->connmgr, ofconn, &port->pp, |
3305 | OFPPR_MODIFY); | |
064af421 BP |
3306 | } |
3307 | } | |
3308 | ||
90bf1e07 | 3309 | static enum ofperr |
d1e2cf21 | 3310 | handle_port_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3311 | { |
64ff1d96 | 3312 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
9e1fd49b | 3313 | struct ofputil_port_mod pm; |
064af421 | 3314 | struct ofport *port; |
9e1fd49b | 3315 | enum ofperr error; |
064af421 | 3316 | |
76589937 | 3317 | error = reject_slave_controller(ofconn); |
9deba63b BP |
3318 | if (error) { |
3319 | return error; | |
3320 | } | |
064af421 | 3321 | |
18cc69d9 | 3322 | error = ofputil_decode_port_mod(oh, &pm, false); |
9e1fd49b BP |
3323 | if (error) { |
3324 | return error; | |
3325 | } | |
3326 | ||
3327 | port = ofproto_get_port(p, pm.port_no); | |
064af421 | 3328 | if (!port) { |
90bf1e07 | 3329 | return OFPERR_OFPPMFC_BAD_PORT; |
9e1fd49b | 3330 | } else if (!eth_addr_equals(port->pp.hw_addr, pm.hw_addr)) { |
90bf1e07 | 3331 | return OFPERR_OFPPMFC_BAD_HW_ADDR; |
064af421 | 3332 | } else { |
2a6f78e0 | 3333 | update_port_config(ofconn, port, pm.config, pm.mask); |
9e1fd49b BP |
3334 | if (pm.advertise) { |
3335 | netdev_set_advertisements(port->netdev, pm.advertise); | |
064af421 BP |
3336 | } |
3337 | } | |
3338 | return 0; | |
3339 | } | |
3340 | ||
90bf1e07 | 3341 | static enum ofperr |
3269c562 | 3342 | handle_desc_stats_request(struct ofconn *ofconn, |
982697a4 | 3343 | const struct ofp_header *request) |
064af421 | 3344 | { |
061bfea4 BP |
3345 | static const char *default_mfr_desc = "Nicira, Inc."; |
3346 | static const char *default_hw_desc = "Open vSwitch"; | |
3347 | static const char *default_sw_desc = VERSION; | |
3348 | static const char *default_serial_desc = "None"; | |
3349 | static const char *default_dp_desc = "None"; | |
3350 | ||
64ff1d96 | 3351 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 BP |
3352 | struct ofp_desc_stats *ods; |
3353 | struct ofpbuf *msg; | |
3354 | ||
982697a4 BP |
3355 | msg = ofpraw_alloc_stats_reply(request, 0); |
3356 | ods = ofpbuf_put_zeros(msg, sizeof *ods); | |
061bfea4 BP |
3357 | ovs_strlcpy(ods->mfr_desc, p->mfr_desc ? p->mfr_desc : default_mfr_desc, |
3358 | sizeof ods->mfr_desc); | |
3359 | ovs_strlcpy(ods->hw_desc, p->hw_desc ? p->hw_desc : default_hw_desc, | |
3360 | sizeof ods->hw_desc); | |
3361 | ovs_strlcpy(ods->sw_desc, p->sw_desc ? p->sw_desc : default_sw_desc, | |
3362 | sizeof ods->sw_desc); | |
3363 | ovs_strlcpy(ods->serial_num, | |
3364 | p->serial_desc ? p->serial_desc : default_serial_desc, | |
3365 | sizeof ods->serial_num); | |
3366 | ovs_strlcpy(ods->dp_desc, p->dp_desc ? p->dp_desc : default_dp_desc, | |
3367 | sizeof ods->dp_desc); | |
b0421aa2 | 3368 | ofconn_send_reply(ofconn, msg); |
064af421 BP |
3369 | |
3370 | return 0; | |
3371 | } | |
3372 | ||
90bf1e07 | 3373 | static enum ofperr |
3269c562 | 3374 | handle_table_stats_request(struct ofconn *ofconn, |
982697a4 | 3375 | const struct ofp_header *request) |
064af421 | 3376 | { |
3c1bb396 BP |
3377 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
3378 | struct ofputil_table_features *features; | |
08d1e234 | 3379 | struct ofputil_table_stats *stats; |
3c1bb396 | 3380 | struct ofpbuf *reply; |
6c1491fb | 3381 | size_t i; |
064af421 | 3382 | |
3c1bb396 | 3383 | query_tables(ofproto, &features, &stats); |
254750ce | 3384 | |
3c1bb396 BP |
3385 | reply = ofputil_encode_table_stats_reply(request); |
3386 | for (i = 0; i < ofproto->n_tables; i++) { | |
3387 | if (!(ofproto->tables[i].flags & OFTABLE_HIDDEN)) { | |
3388 | ofputil_append_table_stats_reply(reply, &stats[i], &features[i]); | |
254750ce BP |
3389 | } |
3390 | } | |
3c1bb396 | 3391 | ofconn_send_reply(ofconn, reply); |
254750ce | 3392 | |
3c1bb396 | 3393 | free(features); |
08d1e234 | 3394 | free(stats); |
307975da | 3395 | |
064af421 BP |
3396 | return 0; |
3397 | } | |
3398 | ||
3c4e10fb BP |
3399 | static enum ofperr |
3400 | handle_table_features_request(struct ofconn *ofconn, | |
3401 | const struct ofp_header *request) | |
3402 | { | |
3403 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
3404 | struct ofputil_table_features *features; | |
ca6ba700 | 3405 | struct ovs_list replies; |
3c4e10fb BP |
3406 | struct ofpbuf msg; |
3407 | size_t i; | |
3408 | ||
3409 | ofpbuf_use_const(&msg, request, ntohs(request->length)); | |
3410 | ofpraw_pull_assert(&msg); | |
6fd6ed71 | 3411 | if (msg.size || ofpmp_more(request)) { |
3c4e10fb BP |
3412 | return OFPERR_OFPTFFC_EPERM; |
3413 | } | |
3414 | ||
3415 | query_tables(ofproto, &features, NULL); | |
3416 | ||
3417 | ofpmp_init(&replies, request); | |
3418 | for (i = 0; i < ofproto->n_tables; i++) { | |
3419 | if (!(ofproto->tables[i].flags & OFTABLE_HIDDEN)) { | |
3420 | ofputil_append_table_features_reply(&features[i], &replies); | |
3421 | } | |
3422 | } | |
3423 | ofconn_send_replies(ofconn, &replies); | |
3424 | ||
3425 | free(features); | |
3426 | ||
3427 | return 0; | |
3428 | } | |
3429 | ||
abaad8cf | 3430 | static void |
ca6ba700 | 3431 | append_port_stat(struct ofport *port, struct ovs_list *replies) |
abaad8cf | 3432 | { |
f8e4867e | 3433 | struct ofputil_port_stats ops = { .port_no = port->pp.port_no }; |
abaad8cf | 3434 | |
65e0be10 BP |
3435 | calc_duration(port->created, time_msec(), |
3436 | &ops.duration_sec, &ops.duration_nsec); | |
3437 | ||
d295e8e9 JP |
3438 | /* Intentionally ignore return value, since errors will set |
3439 | * 'stats' to all-1s, which is correct for OpenFlow, and | |
abaad8cf | 3440 | * netdev_get_stats() will log errors. */ |
f8e4867e SH |
3441 | ofproto_port_get_stats(port, &ops.stats); |
3442 | ||
3443 | ofputil_append_port_stat(replies, &ops); | |
abaad8cf JP |
3444 | } |
3445 | ||
70ae4f93 BP |
3446 | static void |
3447 | handle_port_request(struct ofconn *ofconn, | |
3448 | const struct ofp_header *request, ofp_port_t port_no, | |
ca6ba700 | 3449 | void (*cb)(struct ofport *, struct ovs_list *replies)) |
064af421 | 3450 | { |
70ae4f93 | 3451 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
064af421 | 3452 | struct ofport *port; |
ca6ba700 | 3453 | struct ovs_list replies; |
064af421 | 3454 | |
982697a4 | 3455 | ofpmp_init(&replies, request); |
7f05e7ab | 3456 | if (port_no != OFPP_ANY) { |
70ae4f93 | 3457 | port = ofproto_get_port(ofproto, port_no); |
abaad8cf | 3458 | if (port) { |
70ae4f93 | 3459 | cb(port, &replies); |
abaad8cf JP |
3460 | } |
3461 | } else { | |
70ae4f93 BP |
3462 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
3463 | cb(port, &replies); | |
abaad8cf | 3464 | } |
064af421 BP |
3465 | } |
3466 | ||
63f2140a | 3467 | ofconn_send_replies(ofconn, &replies); |
70ae4f93 BP |
3468 | } |
3469 | ||
3470 | static enum ofperr | |
3471 | handle_port_stats_request(struct ofconn *ofconn, | |
3472 | const struct ofp_header *request) | |
3473 | { | |
3474 | ofp_port_t port_no; | |
3475 | enum ofperr error; | |
3476 | ||
3477 | error = ofputil_decode_port_stats_request(request, &port_no); | |
3478 | if (!error) { | |
3479 | handle_port_request(ofconn, request, port_no, append_port_stat); | |
3480 | } | |
3481 | return error; | |
3482 | } | |
3483 | ||
3484 | static void | |
ca6ba700 | 3485 | append_port_desc(struct ofport *port, struct ovs_list *replies) |
70ae4f93 BP |
3486 | { |
3487 | ofputil_append_port_desc_stats_reply(&port->pp, replies); | |
064af421 BP |
3488 | } |
3489 | ||
2be393ed JP |
3490 | static enum ofperr |
3491 | handle_port_desc_stats_request(struct ofconn *ofconn, | |
982697a4 | 3492 | const struct ofp_header *request) |
2be393ed | 3493 | { |
70ae4f93 BP |
3494 | ofp_port_t port_no; |
3495 | enum ofperr error; | |
2be393ed | 3496 | |
70ae4f93 BP |
3497 | error = ofputil_decode_port_desc_stats_request(request, &port_no); |
3498 | if (!error) { | |
3499 | handle_port_request(ofconn, request, port_no, append_port_desc); | |
2be393ed | 3500 | } |
70ae4f93 | 3501 | return error; |
2be393ed JP |
3502 | } |
3503 | ||
98eaac36 JR |
3504 | static uint32_t |
3505 | hash_cookie(ovs_be64 cookie) | |
3506 | { | |
965607c8 | 3507 | return hash_uint64((OVS_FORCE uint64_t)cookie); |
98eaac36 JR |
3508 | } |
3509 | ||
3510 | static void | |
3511 | cookies_insert(struct ofproto *ofproto, struct rule *rule) | |
2c916028 | 3512 | OVS_REQUIRES(ofproto_mutex) |
98eaac36 JR |
3513 | { |
3514 | hindex_insert(&ofproto->cookies, &rule->cookie_node, | |
3515 | hash_cookie(rule->flow_cookie)); | |
3516 | } | |
3517 | ||
3518 | static void | |
3519 | cookies_remove(struct ofproto *ofproto, struct rule *rule) | |
2c916028 | 3520 | OVS_REQUIRES(ofproto_mutex) |
98eaac36 JR |
3521 | { |
3522 | hindex_remove(&ofproto->cookies, &rule->cookie_node); | |
3523 | } | |
3524 | ||
c6ebb8fb | 3525 | static void |
65e0be10 BP |
3526 | calc_duration(long long int start, long long int now, |
3527 | uint32_t *sec, uint32_t *nsec) | |
c6ebb8fb | 3528 | { |
f27f2134 | 3529 | long long int msecs = now - start; |
588cd7b5 BP |
3530 | *sec = msecs / 1000; |
3531 | *nsec = (msecs % 1000) * (1000 * 1000); | |
3532 | } | |
3533 | ||
48266274 | 3534 | /* Checks whether 'table_id' is 0xff or a valid table ID in 'ofproto'. Returns |
554764d1 SH |
3535 | * true if 'table_id' is OK, false otherwise. */ |
3536 | static bool | |
48266274 BP |
3537 | check_table_id(const struct ofproto *ofproto, uint8_t table_id) |
3538 | { | |
554764d1 | 3539 | return table_id == OFPTT_ALL || table_id < ofproto->n_tables; |
48266274 BP |
3540 | } |
3541 | ||
5c67e4af | 3542 | static struct oftable * |
d4ce8a49 | 3543 | next_visible_table(const struct ofproto *ofproto, uint8_t table_id) |
5c67e4af BP |
3544 | { |
3545 | struct oftable *table; | |
3546 | ||
3547 | for (table = &ofproto->tables[table_id]; | |
3548 | table < &ofproto->tables[ofproto->n_tables]; | |
3549 | table++) { | |
3550 | if (!(table->flags & OFTABLE_HIDDEN)) { | |
3551 | return table; | |
3552 | } | |
3553 | } | |
3554 | ||
3555 | return NULL; | |
3556 | } | |
3557 | ||
d0918789 | 3558 | static struct oftable * |
d4ce8a49 | 3559 | first_matching_table(const struct ofproto *ofproto, uint8_t table_id) |
064af421 | 3560 | { |
6c1491fb | 3561 | if (table_id == 0xff) { |
5c67e4af | 3562 | return next_visible_table(ofproto, 0); |
6c1491fb BP |
3563 | } else if (table_id < ofproto->n_tables) { |
3564 | return &ofproto->tables[table_id]; | |
a02e5331 | 3565 | } else { |
6c1491fb | 3566 | return NULL; |
a02e5331 | 3567 | } |
064af421 BP |
3568 | } |
3569 | ||
d0918789 | 3570 | static struct oftable * |
d4ce8a49 BP |
3571 | next_matching_table(const struct ofproto *ofproto, |
3572 | const struct oftable *table, uint8_t table_id) | |
6c1491fb | 3573 | { |
5c67e4af BP |
3574 | return (table_id == 0xff |
3575 | ? next_visible_table(ofproto, (table - ofproto->tables) + 1) | |
6c1491fb BP |
3576 | : NULL); |
3577 | } | |
3578 | ||
d0918789 | 3579 | /* Assigns TABLE to each oftable, in turn, that matches TABLE_ID in OFPROTO: |
6c1491fb BP |
3580 | * |
3581 | * - If TABLE_ID is 0xff, this iterates over every classifier table in | |
5c67e4af | 3582 | * OFPROTO, skipping tables marked OFTABLE_HIDDEN. |
6c1491fb BP |
3583 | * |
3584 | * - If TABLE_ID is the number of a table in OFPROTO, then the loop iterates | |
5c67e4af BP |
3585 | * only once, for that table. (This can be used to access tables marked |
3586 | * OFTABLE_HIDDEN.) | |
6c1491fb | 3587 | * |
48266274 BP |
3588 | * - Otherwise, TABLE_ID isn't valid for OFPROTO, so the loop won't be |
3589 | * entered at all. (Perhaps you should have validated TABLE_ID with | |
3590 | * check_table_id().) | |
6c1491fb BP |
3591 | * |
3592 | * All parameters are evaluated multiple times. | |
3593 | */ | |
d0918789 BP |
3594 | #define FOR_EACH_MATCHING_TABLE(TABLE, TABLE_ID, OFPROTO) \ |
3595 | for ((TABLE) = first_matching_table(OFPROTO, TABLE_ID); \ | |
3596 | (TABLE) != NULL; \ | |
3597 | (TABLE) = next_matching_table(OFPROTO, TABLE, TABLE_ID)) | |
6c1491fb | 3598 | |
a9b22b7f BP |
3599 | /* Initializes 'criteria' in a straightforward way based on the other |
3600 | * parameters. | |
3601 | * | |
dd51dae2 BP |
3602 | * By default, the criteria include flows that are read-only, on the assumption |
3603 | * that the collected flows won't be modified. Call rule_criteria_require_rw() | |
3604 | * if flows will be modified. | |
3605 | * | |
a9b22b7f BP |
3606 | * For "loose" matching, the 'priority' parameter is unimportant and may be |
3607 | * supplied as 0. */ | |
3608 | static void | |
3609 | rule_criteria_init(struct rule_criteria *criteria, uint8_t table_id, | |
eb391b76 | 3610 | const struct match *match, int priority, |
a9b22b7f BP |
3611 | ovs_be64 cookie, ovs_be64 cookie_mask, |
3612 | ofp_port_t out_port, uint32_t out_group) | |
3613 | { | |
3614 | criteria->table_id = table_id; | |
3615 | cls_rule_init(&criteria->cr, match, priority); | |
3616 | criteria->cookie = cookie; | |
3617 | criteria->cookie_mask = cookie_mask; | |
3618 | criteria->out_port = out_port; | |
3619 | criteria->out_group = out_group; | |
dd51dae2 BP |
3620 | |
3621 | /* We ordinarily want to skip hidden rules, but there has to be a way for | |
3622 | * code internal to OVS to modify and delete them, so if the criteria | |
3623 | * specify a priority that can only be for a hidden flow, then allow hidden | |
3624 | * rules to be selected. (This doesn't allow OpenFlow clients to meddle | |
3625 | * with hidden flows because OpenFlow uses only a 16-bit field to specify | |
3626 | * priority.) */ | |
3627 | criteria->include_hidden = priority > UINT16_MAX; | |
3628 | ||
3629 | /* We assume that the criteria are being used to collect flows for reading | |
3630 | * but not modification. Thus, we should collect read-only flows. */ | |
3631 | criteria->include_readonly = true; | |
3632 | } | |
3633 | ||
3634 | /* By default, criteria initialized by rule_criteria_init() will match flows | |
3635 | * that are read-only, on the assumption that the collected flows won't be | |
3636 | * modified. Call this function to match only flows that are be modifiable. | |
3637 | * | |
3638 | * Specify 'can_write_readonly' as false in ordinary circumstances, true if the | |
3639 | * caller has special privileges that allow it to modify even "read-only" | |
3640 | * flows. */ | |
3641 | static void | |
3642 | rule_criteria_require_rw(struct rule_criteria *criteria, | |
3643 | bool can_write_readonly) | |
3644 | { | |
3645 | criteria->include_readonly = can_write_readonly; | |
a9b22b7f BP |
3646 | } |
3647 | ||
3648 | static void | |
3649 | rule_criteria_destroy(struct rule_criteria *criteria) | |
3650 | { | |
3651 | cls_rule_destroy(&criteria->cr); | |
3652 | } | |
3653 | ||
a8e547c1 BP |
3654 | void |
3655 | rule_collection_init(struct rule_collection *rules) | |
3656 | { | |
3657 | rules->rules = rules->stub; | |
3658 | rules->n = 0; | |
3659 | rules->capacity = ARRAY_SIZE(rules->stub); | |
3660 | } | |
3661 | ||
3662 | void | |
3663 | rule_collection_add(struct rule_collection *rules, struct rule *rule) | |
3664 | { | |
3665 | if (rules->n >= rules->capacity) { | |
3666 | size_t old_size, new_size; | |
3667 | ||
3668 | old_size = rules->capacity * sizeof *rules->rules; | |
3669 | rules->capacity *= 2; | |
3670 | new_size = rules->capacity * sizeof *rules->rules; | |
3671 | ||
3672 | if (rules->rules == rules->stub) { | |
3673 | rules->rules = xmalloc(new_size); | |
3674 | memcpy(rules->rules, rules->stub, old_size); | |
3675 | } else { | |
3676 | rules->rules = xrealloc(rules->rules, new_size); | |
3677 | } | |
3678 | } | |
3679 | ||
3680 | rules->rules[rules->n++] = rule; | |
3681 | } | |
3682 | ||
15aaf599 BP |
3683 | void |
3684 | rule_collection_ref(struct rule_collection *rules) | |
3685 | OVS_REQUIRES(ofproto_mutex) | |
3686 | { | |
3687 | size_t i; | |
3688 | ||
3689 | for (i = 0; i < rules->n; i++) { | |
3690 | ofproto_rule_ref(rules->rules[i]); | |
3691 | } | |
3692 | } | |
3693 | ||
3694 | void | |
3695 | rule_collection_unref(struct rule_collection *rules) | |
3696 | { | |
3697 | size_t i; | |
3698 | ||
3699 | for (i = 0; i < rules->n; i++) { | |
3700 | ofproto_rule_unref(rules->rules[i]); | |
3701 | } | |
3702 | } | |
3703 | ||
a8e547c1 BP |
3704 | void |
3705 | rule_collection_destroy(struct rule_collection *rules) | |
3706 | { | |
3707 | if (rules->rules != rules->stub) { | |
3708 | free(rules->rules); | |
3709 | } | |
bfd3dbf6 BP |
3710 | |
3711 | /* Make repeated destruction harmless. */ | |
3712 | rule_collection_init(rules); | |
a8e547c1 BP |
3713 | } |
3714 | ||
dd51dae2 BP |
3715 | /* Checks whether 'rule' matches 'c' and, if so, adds it to 'rules'. This |
3716 | * function verifies most of the criteria in 'c' itself, but the caller must | |
3717 | * check 'c->cr' itself. | |
3718 | * | |
3719 | * Increments '*n_readonly' if 'rule' wasn't added because it's read-only (and | |
b20f4073 BP |
3720 | * 'c' only includes modifiable rules). */ |
3721 | static void | |
a9b22b7f | 3722 | collect_rule(struct rule *rule, const struct rule_criteria *c, |
dd51dae2 | 3723 | struct rule_collection *rules, size_t *n_readonly) |
15aaf599 | 3724 | OVS_REQUIRES(ofproto_mutex) |
6c1d7642 | 3725 | { |
dd51dae2 BP |
3726 | if ((c->table_id == rule->table_id || c->table_id == 0xff) |
3727 | && ofproto_rule_has_out_port(rule, c->out_port) | |
3728 | && ofproto_rule_has_out_group(rule, c->out_group) | |
3729 | && !((rule->flow_cookie ^ c->cookie) & c->cookie_mask) | |
3730 | && (!rule_is_hidden(rule) || c->include_hidden)) { | |
dd51dae2 | 3731 | /* Rule matches all the criteria... */ |
834fe5cb | 3732 | if (!rule_is_readonly(rule) || c->include_readonly) { |
dd51dae2 | 3733 | /* ...add it. */ |
a8e547c1 | 3734 | rule_collection_add(rules, rule); |
dd51dae2 BP |
3735 | } else { |
3736 | /* ...except it's read-only. */ | |
3737 | ++*n_readonly; | |
6c1d7642 | 3738 | } |
6c1d7642 BP |
3739 | } |
3740 | } | |
3741 | ||
a9b22b7f BP |
3742 | /* Searches 'ofproto' for rules that match the criteria in 'criteria'. Matches |
3743 | * on classifiers rules are done in the "loose" way required for OpenFlow | |
3744 | * OFPFC_MODIFY and OFPFC_DELETE requests. Puts the selected rules on list | |
9ed18e46 BP |
3745 | * 'rules'. |
3746 | * | |
9ed18e46 | 3747 | * Returns 0 on success, otherwise an OpenFlow error code. */ |
90bf1e07 | 3748 | static enum ofperr |
a9b22b7f | 3749 | collect_rules_loose(struct ofproto *ofproto, |
a8e547c1 BP |
3750 | const struct rule_criteria *criteria, |
3751 | struct rule_collection *rules) | |
15aaf599 | 3752 | OVS_REQUIRES(ofproto_mutex) |
9ed18e46 | 3753 | { |
d0918789 | 3754 | struct oftable *table; |
554764d1 | 3755 | enum ofperr error = 0; |
dd51dae2 | 3756 | size_t n_readonly = 0; |
48266274 | 3757 | |
a8e547c1 BP |
3758 | rule_collection_init(rules); |
3759 | ||
554764d1 SH |
3760 | if (!check_table_id(ofproto, criteria->table_id)) { |
3761 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
a8e547c1 | 3762 | goto exit; |
48266274 | 3763 | } |
9ed18e46 | 3764 | |
b8266395 | 3765 | if (criteria->cookie_mask == OVS_BE64_MAX) { |
98eaac36 JR |
3766 | struct rule *rule; |
3767 | ||
a9b22b7f BP |
3768 | HINDEX_FOR_EACH_WITH_HASH (rule, cookie_node, |
3769 | hash_cookie(criteria->cookie), | |
98eaac36 | 3770 | &ofproto->cookies) { |
a9b22b7f | 3771 | if (cls_rule_is_loose_match(&rule->cr, &criteria->cr.match)) { |
b20f4073 | 3772 | collect_rule(rule, criteria, rules, &n_readonly); |
98eaac36 JR |
3773 | } |
3774 | } | |
6c1d7642 | 3775 | } else { |
a9b22b7f | 3776 | FOR_EACH_MATCHING_TABLE (table, criteria->table_id, ofproto) { |
6c1d7642 | 3777 | struct rule *rule; |
9ed18e46 | 3778 | |
5f0476ce | 3779 | CLS_FOR_EACH_TARGET (rule, cr, &table->cls, &criteria->cr) { |
b20f4073 | 3780 | collect_rule(rule, criteria, rules, &n_readonly); |
9ed18e46 BP |
3781 | } |
3782 | } | |
3783 | } | |
48d28ac1 | 3784 | |
a8e547c1 | 3785 | exit: |
dd51dae2 BP |
3786 | if (!error && !rules->n && n_readonly) { |
3787 | /* We didn't find any rules to modify. We did find some read-only | |
3788 | * rules that we're not allowed to modify, so report that. */ | |
3789 | error = OFPERR_OFPBRC_EPERM; | |
3790 | } | |
a8e547c1 BP |
3791 | if (error) { |
3792 | rule_collection_destroy(rules); | |
3793 | } | |
48d28ac1 | 3794 | return error; |
9ed18e46 BP |
3795 | } |
3796 | ||
a9b22b7f BP |
3797 | /* Searches 'ofproto' for rules that match the criteria in 'criteria'. Matches |
3798 | * on classifiers rules are done in the "strict" way required for OpenFlow | |
3799 | * OFPFC_MODIFY_STRICT and OFPFC_DELETE_STRICT requests. Puts the selected | |
3800 | * rules on list 'rules'. | |
9ed18e46 | 3801 | * |
9ed18e46 | 3802 | * Returns 0 on success, otherwise an OpenFlow error code. */ |
90bf1e07 | 3803 | static enum ofperr |
a9b22b7f | 3804 | collect_rules_strict(struct ofproto *ofproto, |
a8e547c1 BP |
3805 | const struct rule_criteria *criteria, |
3806 | struct rule_collection *rules) | |
15aaf599 | 3807 | OVS_REQUIRES(ofproto_mutex) |
9ed18e46 | 3808 | { |
d0918789 | 3809 | struct oftable *table; |
dd51dae2 | 3810 | size_t n_readonly = 0; |
554764d1 | 3811 | int error = 0; |
48266274 | 3812 | |
a8e547c1 BP |
3813 | rule_collection_init(rules); |
3814 | ||
554764d1 SH |
3815 | if (!check_table_id(ofproto, criteria->table_id)) { |
3816 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
a8e547c1 | 3817 | goto exit; |
48266274 | 3818 | } |
9ed18e46 | 3819 | |
b8266395 | 3820 | if (criteria->cookie_mask == OVS_BE64_MAX) { |
98eaac36 JR |
3821 | struct rule *rule; |
3822 | ||
a9b22b7f BP |
3823 | HINDEX_FOR_EACH_WITH_HASH (rule, cookie_node, |
3824 | hash_cookie(criteria->cookie), | |
98eaac36 | 3825 | &ofproto->cookies) { |
a9b22b7f | 3826 | if (cls_rule_equal(&rule->cr, &criteria->cr)) { |
b20f4073 | 3827 | collect_rule(rule, criteria, rules, &n_readonly); |
98eaac36 JR |
3828 | } |
3829 | } | |
6c1d7642 | 3830 | } else { |
a9b22b7f | 3831 | FOR_EACH_MATCHING_TABLE (table, criteria->table_id, ofproto) { |
6c1d7642 | 3832 | struct rule *rule; |
9ed18e46 | 3833 | |
a9b22b7f BP |
3834 | rule = rule_from_cls_rule(classifier_find_rule_exactly( |
3835 | &table->cls, &criteria->cr)); | |
6c1d7642 | 3836 | if (rule) { |
b20f4073 | 3837 | collect_rule(rule, criteria, rules, &n_readonly); |
9ed18e46 BP |
3838 | } |
3839 | } | |
3840 | } | |
48d28ac1 | 3841 | |
a8e547c1 | 3842 | exit: |
b20f4073 BP |
3843 | if (!error && !rules->n && n_readonly) { |
3844 | /* We didn't find any rules to modify. We did find some read-only | |
3845 | * rules that we're not allowed to modify, so report that. */ | |
3846 | error = OFPERR_OFPBRC_EPERM; | |
3847 | } | |
a8e547c1 BP |
3848 | if (error) { |
3849 | rule_collection_destroy(rules); | |
3850 | } | |
6c1d7642 | 3851 | return error; |
9ed18e46 BP |
3852 | } |
3853 | ||
f27f2134 BP |
3854 | /* Returns 'age_ms' (a duration in milliseconds), converted to seconds and |
3855 | * forced into the range of a uint16_t. */ | |
3856 | static int | |
3857 | age_secs(long long int age_ms) | |
3858 | { | |
3859 | return (age_ms < 0 ? 0 | |
3860 | : age_ms >= UINT16_MAX * 1000 ? UINT16_MAX | |
3861 | : (unsigned int) age_ms / 1000); | |
3862 | } | |
3863 | ||
90bf1e07 | 3864 | static enum ofperr |
63f2140a | 3865 | handle_flow_stats_request(struct ofconn *ofconn, |
982697a4 | 3866 | const struct ofp_header *request) |
15aaf599 | 3867 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 3868 | { |
64ff1d96 | 3869 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
81d1ea94 | 3870 | struct ofputil_flow_stats_request fsr; |
a9b22b7f | 3871 | struct rule_criteria criteria; |
a8e547c1 | 3872 | struct rule_collection rules; |
ca6ba700 | 3873 | struct ovs_list replies; |
90bf1e07 | 3874 | enum ofperr error; |
a8e547c1 | 3875 | size_t i; |
09246b99 | 3876 | |
982697a4 | 3877 | error = ofputil_decode_flow_stats_request(&fsr, request); |
09246b99 BP |
3878 | if (error) { |
3879 | return error; | |
3880 | } | |
3881 | ||
a9b22b7f BP |
3882 | rule_criteria_init(&criteria, fsr.table_id, &fsr.match, 0, fsr.cookie, |
3883 | fsr.cookie_mask, fsr.out_port, fsr.out_group); | |
15aaf599 BP |
3884 | |
3885 | ovs_mutex_lock(&ofproto_mutex); | |
a9b22b7f BP |
3886 | error = collect_rules_loose(ofproto, &criteria, &rules); |
3887 | rule_criteria_destroy(&criteria); | |
15aaf599 BP |
3888 | if (!error) { |
3889 | rule_collection_ref(&rules); | |
3890 | } | |
3891 | ovs_mutex_unlock(&ofproto_mutex); | |
3892 | ||
9ed18e46 BP |
3893 | if (error) { |
3894 | return error; | |
3895 | } | |
5ecc9d81 | 3896 | |
982697a4 | 3897 | ofpmp_init(&replies, request); |
a8e547c1 BP |
3898 | for (i = 0; i < rules.n; i++) { |
3899 | struct rule *rule = rules.rules[i]; | |
f27f2134 | 3900 | long long int now = time_msec(); |
9ed18e46 | 3901 | struct ofputil_flow_stats fs; |
15aaf599 | 3902 | long long int created, used, modified; |
dc723c44 | 3903 | const struct rule_actions *actions; |
15aaf599 | 3904 | enum ofputil_flow_mod_flags flags; |
a3779dbc | 3905 | |
d10976b7 | 3906 | ovs_mutex_lock(&rule->mutex); |
15aaf599 | 3907 | fs.cookie = rule->flow_cookie; |
a3779dbc EJ |
3908 | fs.idle_timeout = rule->idle_timeout; |
3909 | fs.hard_timeout = rule->hard_timeout; | |
ca26eb44 | 3910 | fs.importance = rule->importance; |
15aaf599 | 3911 | created = rule->created; |
15aaf599 | 3912 | modified = rule->modified; |
06a0f3e2 | 3913 | actions = rule_get_actions(rule); |
15aaf599 | 3914 | flags = rule->flags; |
d10976b7 | 3915 | ovs_mutex_unlock(&rule->mutex); |
a3779dbc | 3916 | |
dc437090 JR |
3917 | ofproto->ofproto_class->rule_get_stats(rule, &fs.packet_count, |
3918 | &fs.byte_count, &used); | |
3919 | ||
15aaf599 BP |
3920 | minimatch_expand(&rule->cr.match, &fs.match); |
3921 | fs.table_id = rule->table_id; | |
3922 | calc_duration(created, now, &fs.duration_sec, &fs.duration_nsec); | |
3923 | fs.priority = rule->cr.priority; | |
3924 | fs.idle_age = age_secs(now - used); | |
3925 | fs.hard_age = age_secs(now - modified); | |
15aaf599 BP |
3926 | fs.ofpacts = actions->ofpacts; |
3927 | fs.ofpacts_len = actions->ofpacts_len; | |
3f517bcd | 3928 | |
15aaf599 | 3929 | fs.flags = flags; |
9ed18e46 | 3930 | ofputil_append_flow_stats_reply(&fs, &replies); |
3c4486a5 | 3931 | } |
15aaf599 BP |
3932 | |
3933 | rule_collection_unref(&rules); | |
a8e547c1 BP |
3934 | rule_collection_destroy(&rules); |
3935 | ||
63f2140a | 3936 | ofconn_send_replies(ofconn, &replies); |
5ecc9d81 | 3937 | |
09246b99 BP |
3938 | return 0; |
3939 | } | |
3940 | ||
4f2cad2c | 3941 | static void |
3394b5b6 | 3942 | flow_stats_ds(struct rule *rule, struct ds *results) |
4f2cad2c | 3943 | { |
4f2cad2c | 3944 | uint64_t packet_count, byte_count; |
dc723c44 | 3945 | const struct rule_actions *actions; |
dc437090 | 3946 | long long int created, used; |
4f2cad2c | 3947 | |
dc437090 JR |
3948 | rule->ofproto->ofproto_class->rule_get_stats(rule, &packet_count, |
3949 | &byte_count, &used); | |
4f2cad2c | 3950 | |
15aaf599 | 3951 | ovs_mutex_lock(&rule->mutex); |
06a0f3e2 | 3952 | actions = rule_get_actions(rule); |
15aaf599 BP |
3953 | created = rule->created; |
3954 | ovs_mutex_unlock(&rule->mutex); | |
3955 | ||
6c1491fb BP |
3956 | if (rule->table_id != 0) { |
3957 | ds_put_format(results, "table_id=%"PRIu8", ", rule->table_id); | |
3958 | } | |
15aaf599 | 3959 | ds_put_format(results, "duration=%llds, ", (time_msec() - created) / 1000); |
4f2cad2c JP |
3960 | ds_put_format(results, "n_packets=%"PRIu64", ", packet_count); |
3961 | ds_put_format(results, "n_bytes=%"PRIu64", ", byte_count); | |
cb833cf6 | 3962 | cls_rule_format(&rule->cr, results); |
a5df0e72 | 3963 | ds_put_char(results, ','); |
15aaf599 | 3964 | |
455ecd77 | 3965 | ds_put_cstr(results, "actions="); |
15aaf599 BP |
3966 | ofpacts_format(actions->ofpacts, actions->ofpacts_len, results); |
3967 | ||
4f2cad2c JP |
3968 | ds_put_cstr(results, "\n"); |
3969 | } | |
3970 | ||
d295e8e9 | 3971 | /* Adds a pretty-printed description of all flows to 'results', including |
ee8b231c | 3972 | * hidden flows (e.g., set up by in-band control). */ |
4f2cad2c JP |
3973 | void |
3974 | ofproto_get_all_flows(struct ofproto *p, struct ds *results) | |
3975 | { | |
d0918789 | 3976 | struct oftable *table; |
6c1491fb | 3977 | |
d0918789 | 3978 | OFPROTO_FOR_EACH_TABLE (table, p) { |
6c1491fb | 3979 | struct rule *rule; |
064af421 | 3980 | |
5f0476ce | 3981 | CLS_FOR_EACH (rule, cr, &table->cls) { |
6c1491fb BP |
3982 | flow_stats_ds(rule, results); |
3983 | } | |
064af421 | 3984 | } |
064af421 BP |
3985 | } |
3986 | ||
b5827b24 BP |
3987 | /* Obtains the NetFlow engine type and engine ID for 'ofproto' into |
3988 | * '*engine_type' and '*engine_id', respectively. */ | |
3989 | void | |
3990 | ofproto_get_netflow_ids(const struct ofproto *ofproto, | |
3991 | uint8_t *engine_type, uint8_t *engine_id) | |
3992 | { | |
abe529af | 3993 | ofproto->ofproto_class->get_netflow_ids(ofproto, engine_type, engine_id); |
b5827b24 BP |
3994 | } |
3995 | ||
8f5514fe AW |
3996 | /* Checks the status change of CFM on 'ofport'. |
3997 | * | |
3998 | * Returns true if 'ofproto_class' does not support 'cfm_status_changed'. */ | |
3999 | bool | |
4000 | ofproto_port_cfm_status_changed(struct ofproto *ofproto, ofp_port_t ofp_port) | |
4001 | { | |
4002 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
4003 | return (ofport && ofproto->ofproto_class->cfm_status_changed | |
4004 | ? ofproto->ofproto_class->cfm_status_changed(ofport) | |
4005 | : true); | |
4006 | } | |
4007 | ||
88bf179a AW |
4008 | /* Checks the status of CFM configured on 'ofp_port' within 'ofproto'. |
4009 | * Returns 0 if the port's CFM status was successfully stored into | |
4010 | * '*status'. Returns positive errno if the port did not have CFM | |
8f5514fe | 4011 | * configured. |
9a9e3786 | 4012 | * |
88bf179a AW |
4013 | * The caller must provide and own '*status', and must free 'status->rmps'. |
4014 | * '*status' is indeterminate if the return value is non-zero. */ | |
4015 | int | |
4e022ec0 | 4016 | ofproto_port_get_cfm_status(const struct ofproto *ofproto, ofp_port_t ofp_port, |
685acfd9 | 4017 | struct cfm_status *status) |
3967a833 MM |
4018 | { |
4019 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
88bf179a AW |
4020 | return (ofport && ofproto->ofproto_class->get_cfm_status |
4021 | ? ofproto->ofproto_class->get_cfm_status(ofport, status) | |
4022 | : EOPNOTSUPP); | |
3967a833 MM |
4023 | } |
4024 | ||
90bf1e07 | 4025 | static enum ofperr |
76c93b22 | 4026 | handle_aggregate_stats_request(struct ofconn *ofconn, |
982697a4 | 4027 | const struct ofp_header *oh) |
15aaf599 | 4028 | OVS_EXCLUDED(ofproto_mutex) |
27d34fce | 4029 | { |
76c93b22 | 4030 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
81d1ea94 | 4031 | struct ofputil_flow_stats_request request; |
76c93b22 | 4032 | struct ofputil_aggregate_stats stats; |
5e9d0469 | 4033 | bool unknown_packets, unknown_bytes; |
a9b22b7f | 4034 | struct rule_criteria criteria; |
a8e547c1 | 4035 | struct rule_collection rules; |
76c93b22 | 4036 | struct ofpbuf *reply; |
90bf1e07 | 4037 | enum ofperr error; |
a8e547c1 | 4038 | size_t i; |
27d34fce | 4039 | |
982697a4 | 4040 | error = ofputil_decode_flow_stats_request(&request, oh); |
76c93b22 BP |
4041 | if (error) { |
4042 | return error; | |
4043 | } | |
5ecc9d81 | 4044 | |
a9b22b7f BP |
4045 | rule_criteria_init(&criteria, request.table_id, &request.match, 0, |
4046 | request.cookie, request.cookie_mask, | |
4047 | request.out_port, request.out_group); | |
15aaf599 BP |
4048 | |
4049 | ovs_mutex_lock(&ofproto_mutex); | |
a9b22b7f BP |
4050 | error = collect_rules_loose(ofproto, &criteria, &rules); |
4051 | rule_criteria_destroy(&criteria); | |
15aaf599 BP |
4052 | if (!error) { |
4053 | rule_collection_ref(&rules); | |
4054 | } | |
4055 | ovs_mutex_unlock(&ofproto_mutex); | |
4056 | ||
9ed18e46 BP |
4057 | if (error) { |
4058 | return error; | |
4059 | } | |
3c4486a5 | 4060 | |
9ed18e46 | 4061 | memset(&stats, 0, sizeof stats); |
5e9d0469 | 4062 | unknown_packets = unknown_bytes = false; |
a8e547c1 BP |
4063 | for (i = 0; i < rules.n; i++) { |
4064 | struct rule *rule = rules.rules[i]; | |
9ed18e46 BP |
4065 | uint64_t packet_count; |
4066 | uint64_t byte_count; | |
dc437090 | 4067 | long long int used; |
5ecc9d81 | 4068 | |
9ed18e46 | 4069 | ofproto->ofproto_class->rule_get_stats(rule, &packet_count, |
dc437090 | 4070 | &byte_count, &used); |
5ecc9d81 | 4071 | |
5e9d0469 BP |
4072 | if (packet_count == UINT64_MAX) { |
4073 | unknown_packets = true; | |
4074 | } else { | |
4075 | stats.packet_count += packet_count; | |
4076 | } | |
4077 | ||
4078 | if (byte_count == UINT64_MAX) { | |
4079 | unknown_bytes = true; | |
4080 | } else { | |
4081 | stats.byte_count += byte_count; | |
4082 | } | |
4083 | ||
9ed18e46 | 4084 | stats.flow_count++; |
3c4486a5 | 4085 | } |
5e9d0469 BP |
4086 | if (unknown_packets) { |
4087 | stats.packet_count = UINT64_MAX; | |
4088 | } | |
4089 | if (unknown_bytes) { | |
4090 | stats.byte_count = UINT64_MAX; | |
4091 | } | |
27d34fce | 4092 | |
15aaf599 | 4093 | rule_collection_unref(&rules); |
a8e547c1 BP |
4094 | rule_collection_destroy(&rules); |
4095 | ||
982697a4 | 4096 | reply = ofputil_encode_aggregate_stats_reply(&stats, oh); |
76c93b22 | 4097 | ofconn_send_reply(ofconn, reply); |
09246b99 BP |
4098 | |
4099 | return 0; | |
4100 | } | |
4101 | ||
c1c9c9c4 | 4102 | struct queue_stats_cbdata { |
ca0f572c | 4103 | struct ofport *ofport; |
ca6ba700 | 4104 | struct ovs_list replies; |
6dc34a0d | 4105 | long long int now; |
c1c9c9c4 BP |
4106 | }; |
4107 | ||
4108 | static void | |
db9220c3 | 4109 | put_queue_stats(struct queue_stats_cbdata *cbdata, uint32_t queue_id, |
c1c9c9c4 BP |
4110 | const struct netdev_queue_stats *stats) |
4111 | { | |
6dc34a0d | 4112 | struct ofputil_queue_stats oqs; |
c1c9c9c4 | 4113 | |
6dc34a0d BP |
4114 | oqs.port_no = cbdata->ofport->pp.port_no; |
4115 | oqs.queue_id = queue_id; | |
4116 | oqs.tx_bytes = stats->tx_bytes; | |
4117 | oqs.tx_packets = stats->tx_packets; | |
4118 | oqs.tx_errors = stats->tx_errors; | |
4119 | if (stats->created != LLONG_MIN) { | |
4120 | calc_duration(stats->created, cbdata->now, | |
4121 | &oqs.duration_sec, &oqs.duration_nsec); | |
4122 | } else { | |
4123 | oqs.duration_sec = oqs.duration_nsec = UINT32_MAX; | |
4124 | } | |
64626975 | 4125 | ofputil_append_queue_stat(&cbdata->replies, &oqs); |
c1c9c9c4 BP |
4126 | } |
4127 | ||
4128 | static void | |
db9220c3 | 4129 | handle_queue_stats_dump_cb(uint32_t queue_id, |
c1c9c9c4 BP |
4130 | struct netdev_queue_stats *stats, |
4131 | void *cbdata_) | |
4132 | { | |
4133 | struct queue_stats_cbdata *cbdata = cbdata_; | |
4134 | ||
4135 | put_queue_stats(cbdata, queue_id, stats); | |
4136 | } | |
4137 | ||
0414d158 | 4138 | static enum ofperr |
ca0f572c | 4139 | handle_queue_stats_for_port(struct ofport *port, uint32_t queue_id, |
c1c9c9c4 BP |
4140 | struct queue_stats_cbdata *cbdata) |
4141 | { | |
ca0f572c | 4142 | cbdata->ofport = port; |
c1c9c9c4 BP |
4143 | if (queue_id == OFPQ_ALL) { |
4144 | netdev_dump_queue_stats(port->netdev, | |
4145 | handle_queue_stats_dump_cb, cbdata); | |
4146 | } else { | |
4147 | struct netdev_queue_stats stats; | |
4148 | ||
1ac788f6 BP |
4149 | if (!netdev_get_queue_stats(port->netdev, queue_id, &stats)) { |
4150 | put_queue_stats(cbdata, queue_id, &stats); | |
0414d158 BP |
4151 | } else { |
4152 | return OFPERR_OFPQOFC_BAD_QUEUE; | |
1ac788f6 | 4153 | } |
c1c9c9c4 | 4154 | } |
0414d158 | 4155 | return 0; |
c1c9c9c4 BP |
4156 | } |
4157 | ||
90bf1e07 | 4158 | static enum ofperr |
63f2140a | 4159 | handle_queue_stats_request(struct ofconn *ofconn, |
982697a4 | 4160 | const struct ofp_header *rq) |
c1c9c9c4 | 4161 | { |
64ff1d96 | 4162 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
c1c9c9c4 | 4163 | struct queue_stats_cbdata cbdata; |
0414d158 | 4164 | struct ofport *port; |
0414d158 | 4165 | enum ofperr error; |
64626975 | 4166 | struct ofputil_queue_stats_request oqsr; |
c1c9c9c4 | 4167 | |
c1c9c9c4 BP |
4168 | COVERAGE_INC(ofproto_queue_req); |
4169 | ||
982697a4 | 4170 | ofpmp_init(&cbdata.replies, rq); |
6dc34a0d | 4171 | cbdata.now = time_msec(); |
c1c9c9c4 | 4172 | |
64626975 SH |
4173 | error = ofputil_decode_queue_stats_request(rq, &oqsr); |
4174 | if (error) { | |
4175 | return error; | |
4176 | } | |
4177 | ||
7f05e7ab | 4178 | if (oqsr.port_no == OFPP_ANY) { |
0414d158 | 4179 | error = OFPERR_OFPQOFC_BAD_QUEUE; |
4e8e4213 | 4180 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
64626975 | 4181 | if (!handle_queue_stats_for_port(port, oqsr.queue_id, &cbdata)) { |
0414d158 BP |
4182 | error = 0; |
4183 | } | |
c1c9c9c4 | 4184 | } |
0414d158 | 4185 | } else { |
64626975 | 4186 | port = ofproto_get_port(ofproto, oqsr.port_no); |
0414d158 | 4187 | error = (port |
64626975 | 4188 | ? handle_queue_stats_for_port(port, oqsr.queue_id, &cbdata) |
0414d158 BP |
4189 | : OFPERR_OFPQOFC_BAD_PORT); |
4190 | } | |
4191 | if (!error) { | |
4192 | ofconn_send_replies(ofconn, &cbdata.replies); | |
c1c9c9c4 | 4193 | } else { |
63f2140a | 4194 | ofpbuf_list_delete(&cbdata.replies); |
c1c9c9c4 | 4195 | } |
c1c9c9c4 | 4196 | |
0414d158 | 4197 | return error; |
c1c9c9c4 | 4198 | } |
7ee20df1 | 4199 | |
2e31a9b8 | 4200 | static enum ofperr |
834fe5cb | 4201 | evict_rules_from_table(struct oftable *table, unsigned int extra_space) |
15aaf599 | 4202 | OVS_REQUIRES(ofproto_mutex) |
2e31a9b8 | 4203 | { |
802f84ff JR |
4204 | enum ofperr error = 0; |
4205 | struct rule_collection rules; | |
4206 | unsigned int count = classifier_count(&table->cls) + extra_space; | |
4207 | unsigned int max_flows = table->max_flows; | |
4208 | ||
4209 | rule_collection_init(&rules); | |
4210 | ||
4211 | while (count-- > max_flows) { | |
2e31a9b8 | 4212 | struct rule *rule; |
8037acb4 | 4213 | |
2e31a9b8 | 4214 | if (!choose_rule_to_evict(table, &rule)) { |
802f84ff JR |
4215 | error = OFPERR_OFPFMFC_TABLE_FULL; |
4216 | break; | |
2e31a9b8 | 4217 | } else { |
802f84ff JR |
4218 | eviction_group_remove_rule(rule); |
4219 | rule_collection_add(&rules, rule); | |
2e31a9b8 | 4220 | } |
8037acb4 | 4221 | } |
802f84ff JR |
4222 | delete_flows__(&rules, OFPRR_EVICTION, NULL); |
4223 | rule_collection_destroy(&rules); | |
2e31a9b8 | 4224 | |
802f84ff | 4225 | return error; |
8037acb4 BP |
4226 | } |
4227 | ||
18080541 BP |
4228 | static bool |
4229 | is_conjunction(const struct ofpact *ofpacts, size_t ofpacts_len) | |
4230 | { | |
4231 | return ofpacts_len > 0 && ofpacts->type == OFPACT_CONJUNCTION; | |
4232 | } | |
4233 | ||
4234 | static void | |
4235 | get_conjunctions(const struct ofputil_flow_mod *fm, | |
4236 | struct cls_conjunction **conjsp, size_t *n_conjsp) | |
4237 | OVS_REQUIRES(ofproto_mutex) | |
4238 | { | |
4239 | struct cls_conjunction *conjs = NULL; | |
4240 | int n_conjs = 0; | |
4241 | ||
4242 | if (is_conjunction(fm->ofpacts, fm->ofpacts_len)) { | |
4243 | const struct ofpact *ofpact; | |
4244 | int i; | |
4245 | ||
4246 | n_conjs = 0; | |
4247 | OFPACT_FOR_EACH (ofpact, fm->ofpacts, fm->ofpacts_len) { | |
4248 | n_conjs++; | |
4249 | } | |
4250 | ||
4251 | conjs = xzalloc(n_conjs * sizeof *conjs); | |
4252 | i = 0; | |
4253 | OFPACT_FOR_EACH (ofpact, fm->ofpacts, fm->ofpacts_len) { | |
4254 | struct ofpact_conjunction *oc = ofpact_get_CONJUNCTION(ofpact); | |
4255 | conjs[i].clause = oc->clause; | |
4256 | conjs[i].n_clauses = oc->n_clauses; | |
4257 | conjs[i].id = oc->id; | |
4258 | i++; | |
4259 | } | |
4260 | } | |
4261 | ||
4262 | *conjsp = conjs; | |
4263 | *n_conjsp = n_conjs; | |
4264 | } | |
4265 | ||
4266 | static void | |
4267 | set_conjunctions(struct rule *rule, const struct cls_conjunction *conjs, | |
4268 | size_t n_conjs) | |
4269 | OVS_REQUIRES(ofproto_mutex) | |
4270 | { | |
4271 | struct cls_rule *cr = CONST_CAST(struct cls_rule *, &rule->cr); | |
4272 | ||
4273 | cls_rule_set_conjunctions(cr, conjs, n_conjs); | |
4274 | } | |
4275 | ||
79eee1eb BP |
4276 | /* Implements OFPFC_ADD and the cases for OFPFC_MODIFY and OFPFC_MODIFY_STRICT |
4277 | * in which no matching flow already exists in the flow table. | |
4278 | * | |
4279 | * Adds the flow specified by 'ofm', which is followed by 'n_actions' | |
75a75043 | 4280 | * ofp_actions, to the ofproto's flow table. Returns 0 on success, an OpenFlow |
90bf1e07 BP |
4281 | * error code on failure, or OFPROTO_POSTPONE if the operation cannot be |
4282 | * initiated now but may be retried later. | |
79eee1eb | 4283 | * |
2509616e | 4284 | * The caller retains ownership of 'fm->ofpacts'. |
f25d0cf3 | 4285 | * |
79eee1eb BP |
4286 | * 'ofconn' is used to retrieve the packet buffer specified in ofm->buffer_id, |
4287 | * if any. */ | |
90bf1e07 | 4288 | static enum ofperr |
baae3d02 BP |
4289 | add_flow(struct ofproto *ofproto, struct ofputil_flow_mod *fm, |
4290 | const struct flow_mod_requester *req) | |
15aaf599 | 4291 | OVS_REQUIRES(ofproto_mutex) |
064af421 | 4292 | { |
062fea06 | 4293 | const struct rule_actions *actions; |
d0918789 | 4294 | struct oftable *table; |
8037acb4 | 4295 | struct cls_rule cr; |
064af421 | 4296 | struct rule *rule; |
5a361239 | 4297 | uint8_t table_id; |
554764d1 | 4298 | int error = 0; |
064af421 | 4299 | |
554764d1 SH |
4300 | if (!check_table_id(ofproto, fm->table_id)) { |
4301 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
48266274 BP |
4302 | return error; |
4303 | } | |
4304 | ||
7ee20df1 BP |
4305 | /* Pick table. */ |
4306 | if (fm->table_id == 0xff) { | |
13521ff5 | 4307 | if (ofproto->ofproto_class->rule_choose_table) { |
81a76618 BP |
4308 | error = ofproto->ofproto_class->rule_choose_table(ofproto, |
4309 | &fm->match, | |
7ee20df1 BP |
4310 | &table_id); |
4311 | if (error) { | |
4312 | return error; | |
4313 | } | |
cb22974d | 4314 | ovs_assert(table_id < ofproto->n_tables); |
7ee20df1 | 4315 | } else { |
5a361239 | 4316 | table_id = 0; |
7ee20df1 BP |
4317 | } |
4318 | } else if (fm->table_id < ofproto->n_tables) { | |
5a361239 | 4319 | table_id = fm->table_id; |
7ee20df1 | 4320 | } else { |
c22c56bd | 4321 | return OFPERR_OFPBRC_BAD_TABLE_ID; |
064af421 BP |
4322 | } |
4323 | ||
5a361239 | 4324 | table = &ofproto->tables[table_id]; |
834fe5cb BP |
4325 | if (table->flags & OFTABLE_READONLY |
4326 | && !(fm->flags & OFPUTIL_FF_NO_READONLY)) { | |
5c67e4af BP |
4327 | return OFPERR_OFPBRC_EPERM; |
4328 | } | |
4329 | ||
adcf00ba AZ |
4330 | if (!(fm->flags & OFPUTIL_FF_HIDDEN_FIELDS)) { |
4331 | if (!match_has_default_hidden_fields(&fm->match)) { | |
4332 | VLOG_WARN_RL(&rl, "%s: (add_flow) only internal flows can set " | |
4333 | "non-default values to hidden fields", ofproto->name); | |
4334 | return OFPERR_OFPBRC_EPERM; | |
4335 | } | |
4336 | } | |
4337 | ||
8037acb4 BP |
4338 | cls_rule_init(&cr, &fm->match, fm->priority); |
4339 | ||
b277c7cc | 4340 | /* Transform "add" into "modify" if there's an existing identical flow. */ |
8037acb4 | 4341 | rule = rule_from_cls_rule(classifier_find_rule_exactly(&table->cls, &cr)); |
b277c7cc | 4342 | if (rule) { |
834fe5cb BP |
4343 | struct rule_collection rules; |
4344 | ||
8037acb4 | 4345 | cls_rule_destroy(&cr); |
b277c7cc | 4346 | |
834fe5cb BP |
4347 | rule_collection_init(&rules); |
4348 | rule_collection_add(&rules, rule); | |
4349 | fm->modify_cookie = true; | |
4350 | error = modify_flows__(ofproto, fm, &rules, req); | |
4351 | rule_collection_destroy(&rules); | |
a8e547c1 | 4352 | |
834fe5cb | 4353 | return error; |
b277c7cc BP |
4354 | } |
4355 | ||
81a76618 | 4356 | /* Check for overlap, if requested. */ |
0fb88c18 | 4357 | if (fm->flags & OFPUTIL_FF_CHECK_OVERLAP) { |
afae68b1 | 4358 | if (classifier_rule_overlaps(&table->cls, &cr)) { |
8037acb4 | 4359 | cls_rule_destroy(&cr); |
c09f755d BP |
4360 | return OFPERR_OFPFMFC_OVERLAP; |
4361 | } | |
7ee20df1 | 4362 | } |
81a76618 | 4363 | |
8037acb4 | 4364 | /* If necessary, evict an existing rule to clear out space. */ |
834fe5cb | 4365 | error = evict_rules_from_table(table, 1); |
8037acb4 BP |
4366 | if (error) { |
4367 | cls_rule_destroy(&cr); | |
4368 | return error; | |
4369 | } | |
2e1ae200 | 4370 | |
8037acb4 BP |
4371 | /* Allocate new rule. */ |
4372 | rule = ofproto->ofproto_class->rule_alloc(); | |
4373 | if (!rule) { | |
4374 | cls_rule_destroy(&cr); | |
4375 | VLOG_WARN_RL(&rl, "%s: failed to create rule (%s)", | |
4376 | ofproto->name, ovs_strerror(error)); | |
4377 | return ENOMEM; | |
4378 | } | |
4379 | ||
4380 | /* Initialize base state. */ | |
49a0e0eb BP |
4381 | *CONST_CAST(struct ofproto **, &rule->ofproto) = ofproto; |
4382 | cls_rule_move(CONST_CAST(struct cls_rule *, &rule->cr), &cr); | |
37bec3d3 | 4383 | ovs_refcount_init(&rule->ref_count); |
623e1caf | 4384 | rule->flow_cookie = fm->new_cookie; |
dc437090 | 4385 | rule->created = rule->modified = time_msec(); |
a3779dbc | 4386 | |
d10976b7 BP |
4387 | ovs_mutex_init(&rule->mutex); |
4388 | ovs_mutex_lock(&rule->mutex); | |
7ee20df1 BP |
4389 | rule->idle_timeout = fm->idle_timeout; |
4390 | rule->hard_timeout = fm->hard_timeout; | |
ca26eb44 | 4391 | rule->importance = fm->importance; |
d10976b7 | 4392 | ovs_mutex_unlock(&rule->mutex); |
a3779dbc | 4393 | |
49a0e0eb | 4394 | *CONST_CAST(uint8_t *, &rule->table_id) = table - ofproto->tables; |
3f517bcd | 4395 | rule->flags = fm->flags & OFPUTIL_FF_STATE; |
4c7562c5 | 4396 | actions = rule_actions_create(fm->ofpacts, fm->ofpacts_len); |
062fea06 | 4397 | ovsrcu_set(&rule->actions, actions); |
9cae45dc | 4398 | list_init(&rule->meter_list_node); |
254750ce | 4399 | rule->eviction_group = NULL; |
e503cc19 | 4400 | list_init(&rule->expirable); |
2b07c8b1 BP |
4401 | rule->monitor_flags = 0; |
4402 | rule->add_seqno = 0; | |
4403 | rule->modify_seqno = 0; | |
7ee20df1 | 4404 | |
8037acb4 | 4405 | /* Construct rule, initializing derived state. */ |
b277c7cc BP |
4406 | error = ofproto->ofproto_class->rule_construct(rule); |
4407 | if (error) { | |
8037acb4 BP |
4408 | ofproto_rule_destroy__(rule); |
4409 | return error; | |
064af421 | 4410 | } |
8037acb4 | 4411 | |
062fea06 BP |
4412 | if (fm->hard_timeout || fm->idle_timeout) { |
4413 | list_insert(&ofproto->expirable, &rule->expirable); | |
4414 | } | |
4415 | cookies_insert(ofproto, rule); | |
4416 | eviction_group_add_rule(rule); | |
4c7562c5 | 4417 | if (actions->has_meter) { |
062fea06 BP |
4418 | meter_insert_rule(rule); |
4419 | } | |
1ebeaaa7 | 4420 | |
802f84ff | 4421 | classifier_defer(&table->cls); |
18080541 BP |
4422 | |
4423 | struct cls_conjunction *conjs; | |
4424 | size_t n_conjs; | |
4425 | get_conjunctions(fm, &conjs, &n_conjs); | |
4426 | classifier_insert(&table->cls, &rule->cr, conjs, n_conjs); | |
4427 | free(conjs); | |
8037acb4 | 4428 | |
b20f4073 | 4429 | error = ofproto->ofproto_class->rule_insert(rule); |
834fe5cb BP |
4430 | if (error) { |
4431 | oftable_remove_rule(rule); | |
4432 | ofproto_rule_unref(rule); | |
4433 | return error; | |
4434 | } | |
802f84ff JR |
4435 | classifier_publish(&table->cls); |
4436 | ||
35f48b8b | 4437 | learned_cookies_inc(ofproto, actions); |
062fea06 | 4438 | |
834fe5cb BP |
4439 | if (minimask_get_vid_mask(&rule->cr.match.mask) == VLAN_VID_MASK) { |
4440 | if (ofproto->vlan_bitmap) { | |
4441 | uint16_t vid = miniflow_get_vid(&rule->cr.match.flow); | |
4442 | if (!bitmap_is_set(ofproto->vlan_bitmap, vid)) { | |
4443 | bitmap_set1(ofproto->vlan_bitmap, vid); | |
4444 | ofproto->vlans_changed = true; | |
4445 | } | |
4446 | } else { | |
4447 | ofproto->vlans_changed = true; | |
4448 | } | |
4449 | } | |
4450 | ||
4451 | ofmonitor_report(ofproto->connmgr, rule, NXFME_ADDED, 0, | |
cdbdeeda | 4452 | req ? req->ofconn : NULL, req ? req->xid : 0, NULL); |
834fe5cb BP |
4453 | |
4454 | return req ? send_buffered_packet(req->ofconn, fm->buffer_id, rule) : 0; | |
064af421 | 4455 | } |
79eee1eb BP |
4456 | \f |
4457 | /* OFPFC_MODIFY and OFPFC_MODIFY_STRICT. */ | |
064af421 | 4458 | |
9ed18e46 BP |
4459 | /* Modifies the rules listed in 'rules', changing their actions to match those |
4460 | * in 'fm'. | |
79eee1eb | 4461 | * |
9ed18e46 BP |
4462 | * 'ofconn' is used to retrieve the packet buffer specified in fm->buffer_id, |
4463 | * if any. | |
4464 | * | |
4465 | * Returns 0 on success, otherwise an OpenFlow error code. */ | |
90bf1e07 | 4466 | static enum ofperr |
baae3d02 BP |
4467 | modify_flows__(struct ofproto *ofproto, struct ofputil_flow_mod *fm, |
4468 | const struct rule_collection *rules, | |
4469 | const struct flow_mod_requester *req) | |
15aaf599 | 4470 | OVS_REQUIRES(ofproto_mutex) |
79eee1eb | 4471 | { |
55951e15 | 4472 | struct ovs_list dead_cookies = OVS_LIST_INITIALIZER(&dead_cookies); |
834fe5cb | 4473 | enum nx_flow_update_event event; |
a8e547c1 | 4474 | size_t i; |
79eee1eb | 4475 | |
af822017 BP |
4476 | if (ofproto->ofproto_class->rule_premodify_actions) { |
4477 | for (i = 0; i < rules->n; i++) { | |
4478 | struct rule *rule = rules->rules[i]; | |
cb220b39 | 4479 | enum ofperr error; |
af822017 | 4480 | |
dd51dae2 BP |
4481 | error = ofproto->ofproto_class->rule_premodify_actions( |
4482 | rule, fm->ofpacts, fm->ofpacts_len); | |
4483 | if (error) { | |
4484 | return error; | |
af822017 BP |
4485 | } |
4486 | } | |
4487 | } | |
4488 | ||
834fe5cb | 4489 | event = fm->command == OFPFC_ADD ? NXFME_ADDED : NXFME_MODIFIED; |
a8e547c1 BP |
4490 | for (i = 0; i < rules->n; i++) { |
4491 | struct rule *rule = rules->rules[i]; | |
08043761 | 4492 | |
834fe5cb BP |
4493 | /* 'fm' says that */ |
4494 | bool change_cookie = (fm->modify_cookie | |
4495 | && fm->new_cookie != OVS_BE64_MAX | |
4496 | && fm->new_cookie != rule->flow_cookie); | |
2e1ae200 | 4497 | |
834fe5cb BP |
4498 | const struct rule_actions *actions = rule_get_actions(rule); |
4499 | bool change_actions = !ofpacts_equal(fm->ofpacts, fm->ofpacts_len, | |
4500 | actions->ofpacts, | |
4501 | actions->ofpacts_len); | |
5c67e4af | 4502 | |
834fe5cb | 4503 | bool reset_counters = (fm->flags & OFPUTIL_FF_RESET_COUNTS) != 0; |
a7d94793 | 4504 | |
834fe5cb BP |
4505 | long long int now = time_msec(); |
4506 | ||
834fe5cb BP |
4507 | if (change_cookie) { |
4508 | cookies_remove(ofproto, rule); | |
98eaac36 | 4509 | } |
834fe5cb BP |
4510 | |
4511 | ovs_mutex_lock(&rule->mutex); | |
4512 | if (fm->command == OFPFC_ADD) { | |
b277c7cc BP |
4513 | rule->idle_timeout = fm->idle_timeout; |
4514 | rule->hard_timeout = fm->hard_timeout; | |
ca26eb44 | 4515 | rule->importance = fm->importance; |
3f517bcd | 4516 | rule->flags = fm->flags & OFPUTIL_FF_STATE; |
834fe5cb BP |
4517 | rule->created = now; |
4518 | } | |
4519 | if (change_cookie) { | |
4520 | rule->flow_cookie = fm->new_cookie; | |
4521 | } | |
4522 | rule->modified = now; | |
4523 | ovs_mutex_unlock(&rule->mutex); | |
4524 | ||
4525 | if (change_cookie) { | |
4526 | cookies_insert(ofproto, rule); | |
4527 | } | |
4528 | if (fm->command == OFPFC_ADD) { | |
ca26eb44 | 4529 | if (fm->idle_timeout || fm->hard_timeout || fm->importance) { |
b277c7cc BP |
4530 | if (!rule->eviction_group) { |
4531 | eviction_group_add_rule(rule); | |
4532 | } | |
4533 | } else { | |
4534 | eviction_group_remove_rule(rule); | |
4535 | } | |
4536 | } | |
4537 | ||
834fe5cb | 4538 | if (change_actions) { |
18080541 BP |
4539 | /* We have to change the actions. The rule's conjunctive match set |
4540 | * is a function of its actions, so we need to update that too. The | |
4541 | * conjunctive match set is used in the lookup process to figure | |
4542 | * which (if any) collection of conjunctive sets the packet matches | |
4543 | * with. However, a rule with conjunction actions is never to be | |
4544 | * returned as a classifier lookup result. To make sure a rule with | |
4545 | * conjunction actions is not returned as a lookup result, we update | |
4546 | * them in a carefully chosen order: | |
4547 | * | |
4548 | * - If we're adding a conjunctive match set where there wasn't one | |
4549 | * before, we have to make the conjunctive match set available to | |
4550 | * lookups before the rule's actions are changed, as otherwise | |
4551 | * rule with a conjunction action could be returned as a lookup | |
4552 | * result. | |
4553 | * | |
4554 | * - To clear some nonempty conjunctive set, we set the rule's | |
4555 | * actions first, so that a lookup can't return a rule with | |
4556 | * conjunction actions. | |
4557 | * | |
4558 | * - Otherwise, order doesn't matter for changing one nonempty | |
4559 | * conjunctive match set to some other nonempty set, since the | |
4560 | * rule's actions are not seen by the classifier, and hence don't | |
4561 | * matter either before or after the change. */ | |
4562 | struct cls_conjunction *conjs; | |
4563 | size_t n_conjs; | |
4564 | get_conjunctions(fm, &conjs, &n_conjs); | |
4565 | ||
4566 | if (n_conjs) { | |
4567 | set_conjunctions(rule, conjs, n_conjs); | |
4568 | } | |
4c7562c5 | 4569 | ovsrcu_set(&rule->actions, rule_actions_create(fm->ofpacts, |
834fe5cb | 4570 | fm->ofpacts_len)); |
18080541 BP |
4571 | if (!conjs) { |
4572 | set_conjunctions(rule, conjs, n_conjs); | |
4573 | } | |
4574 | ||
4575 | free(conjs); | |
834fe5cb | 4576 | } |
884e1dc4 | 4577 | |
834fe5cb | 4578 | if (change_actions || reset_counters) { |
af822017 | 4579 | ofproto->ofproto_class->rule_modify_actions(rule, reset_counters); |
623e1caf | 4580 | } |
834fe5cb BP |
4581 | |
4582 | if (event != NXFME_MODIFIED || change_actions || change_cookie) { | |
4583 | ofmonitor_report(ofproto->connmgr, rule, event, 0, | |
cdbdeeda SH |
4584 | req ? req->ofconn : NULL, req ? req->xid : 0, |
4585 | change_actions ? actions : NULL); | |
834fe5cb | 4586 | } |
35f48b8b BP |
4587 | |
4588 | if (change_actions) { | |
4589 | learned_cookies_inc(ofproto, rule_get_actions(rule)); | |
4590 | learned_cookies_dec(ofproto, actions, &dead_cookies); | |
cdbdeeda | 4591 | rule_actions_destroy(actions); |
35f48b8b | 4592 | } |
834fe5cb | 4593 | } |
35f48b8b | 4594 | learned_cookies_flush(ofproto, &dead_cookies); |
834fe5cb BP |
4595 | |
4596 | if (fm->buffer_id != UINT32_MAX && req) { | |
cb220b39 SH |
4597 | return send_buffered_packet(req->ofconn, fm->buffer_id, |
4598 | rules->rules[0]); | |
5ecc9d81 | 4599 | } |
79eee1eb | 4600 | |
cb220b39 | 4601 | return 0; |
9ed18e46 BP |
4602 | } |
4603 | ||
9387b970 | 4604 | static enum ofperr |
baae3d02 BP |
4605 | modify_flows_add(struct ofproto *ofproto, struct ofputil_flow_mod *fm, |
4606 | const struct flow_mod_requester *req) | |
15aaf599 | 4607 | OVS_REQUIRES(ofproto_mutex) |
9387b970 | 4608 | { |
b8266395 | 4609 | if (fm->cookie_mask != htonll(0) || fm->new_cookie == OVS_BE64_MAX) { |
9387b970 SH |
4610 | return 0; |
4611 | } | |
baae3d02 | 4612 | return add_flow(ofproto, fm, req); |
9387b970 SH |
4613 | } |
4614 | ||
90bf1e07 BP |
4615 | /* Implements OFPFC_MODIFY. Returns 0 on success or an OpenFlow error code on |
4616 | * failure. | |
9ed18e46 BP |
4617 | * |
4618 | * 'ofconn' is used to retrieve the packet buffer specified in fm->buffer_id, | |
4619 | * if any. */ | |
90bf1e07 | 4620 | static enum ofperr |
baae3d02 BP |
4621 | modify_flows_loose(struct ofproto *ofproto, struct ofputil_flow_mod *fm, |
4622 | const struct flow_mod_requester *req) | |
15aaf599 | 4623 | OVS_REQUIRES(ofproto_mutex) |
9ed18e46 | 4624 | { |
a9b22b7f | 4625 | struct rule_criteria criteria; |
a8e547c1 | 4626 | struct rule_collection rules; |
9ed18e46 BP |
4627 | int error; |
4628 | ||
a9b22b7f BP |
4629 | rule_criteria_init(&criteria, fm->table_id, &fm->match, 0, |
4630 | fm->cookie, fm->cookie_mask, OFPP_ANY, OFPG11_ANY); | |
dd51dae2 BP |
4631 | rule_criteria_require_rw(&criteria, |
4632 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
a9b22b7f BP |
4633 | error = collect_rules_loose(ofproto, &criteria, &rules); |
4634 | rule_criteria_destroy(&criteria); | |
4635 | ||
a8e547c1 BP |
4636 | if (!error) { |
4637 | error = (rules.n > 0 | |
baae3d02 BP |
4638 | ? modify_flows__(ofproto, fm, &rules, req) |
4639 | : modify_flows_add(ofproto, fm, req)); | |
623e1caf | 4640 | } |
a8e547c1 BP |
4641 | |
4642 | rule_collection_destroy(&rules); | |
4643 | ||
4644 | return error; | |
79eee1eb BP |
4645 | } |
4646 | ||
4647 | /* Implements OFPFC_MODIFY_STRICT. Returns 0 on success or an OpenFlow error | |
baae3d02 | 4648 | * code on failure. */ |
90bf1e07 | 4649 | static enum ofperr |
baae3d02 BP |
4650 | modify_flow_strict(struct ofproto *ofproto, struct ofputil_flow_mod *fm, |
4651 | const struct flow_mod_requester *req) | |
15aaf599 | 4652 | OVS_REQUIRES(ofproto_mutex) |
79eee1eb | 4653 | { |
a9b22b7f | 4654 | struct rule_criteria criteria; |
a8e547c1 | 4655 | struct rule_collection rules; |
6c1491fb BP |
4656 | int error; |
4657 | ||
a9b22b7f BP |
4658 | rule_criteria_init(&criteria, fm->table_id, &fm->match, fm->priority, |
4659 | fm->cookie, fm->cookie_mask, OFPP_ANY, OFPG11_ANY); | |
dd51dae2 BP |
4660 | rule_criteria_require_rw(&criteria, |
4661 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
a9b22b7f BP |
4662 | error = collect_rules_strict(ofproto, &criteria, &rules); |
4663 | rule_criteria_destroy(&criteria); | |
4664 | ||
a8e547c1 BP |
4665 | if (!error) { |
4666 | if (rules.n == 0) { | |
baae3d02 | 4667 | error = modify_flows_add(ofproto, fm, req); |
a8e547c1 | 4668 | } else if (rules.n == 1) { |
baae3d02 | 4669 | error = modify_flows__(ofproto, fm, &rules, req); |
a8e547c1 | 4670 | } |
623e1caf | 4671 | } |
a8e547c1 BP |
4672 | |
4673 | rule_collection_destroy(&rules); | |
4674 | ||
4675 | return error; | |
79eee1eb | 4676 | } |
9ed18e46 BP |
4677 | \f |
4678 | /* OFPFC_DELETE implementation. */ | |
79eee1eb | 4679 | |
9ca4a86f | 4680 | /* Deletes the rules listed in 'rules'. */ |
254750ce | 4681 | static void |
9ca4a86f | 4682 | delete_flows__(const struct rule_collection *rules, |
baae3d02 BP |
4683 | enum ofp_flow_removed_reason reason, |
4684 | const struct flow_mod_requester *req) | |
15aaf599 | 4685 | OVS_REQUIRES(ofproto_mutex) |
064af421 | 4686 | { |
9ca4a86f | 4687 | if (rules->n) { |
55951e15 | 4688 | struct ovs_list dead_cookies = OVS_LIST_INITIALIZER(&dead_cookies); |
9ca4a86f | 4689 | struct ofproto *ofproto = rules->rules[0]->ofproto; |
802f84ff | 4690 | struct rule *rule, *next; |
9ca4a86f | 4691 | size_t i; |
79eee1eb | 4692 | |
802f84ff JR |
4693 | for (i = 0, next = rules->rules[0]; |
4694 | rule = next, next = (++i < rules->n) ? rules->rules[i] : NULL, | |
4695 | rule; ) { | |
4696 | struct classifier *cls = &ofproto->tables[rule->table_id].cls; | |
4697 | uint8_t next_table = next ? next->table_id : UINT8_MAX; | |
79eee1eb | 4698 | |
9ca4a86f BP |
4699 | ofproto_rule_send_removed(rule, reason); |
4700 | ||
4701 | ofmonitor_report(ofproto->connmgr, rule, NXFME_DELETED, reason, | |
cdbdeeda SH |
4702 | req ? req->ofconn : NULL, req ? req->xid : 0, |
4703 | NULL); | |
802f84ff JR |
4704 | |
4705 | if (next_table == rule->table_id) { | |
4706 | classifier_defer(cls); | |
4707 | } | |
4708 | classifier_remove(cls, &rule->cr); | |
4709 | if (next_table != rule->table_id) { | |
4710 | classifier_publish(cls); | |
4711 | } | |
4712 | ofproto_rule_remove__(ofproto, rule); | |
4713 | ||
9ca4a86f | 4714 | ofproto->ofproto_class->rule_delete(rule); |
35f48b8b | 4715 | |
802f84ff JR |
4716 | learned_cookies_dec(ofproto, rule_get_actions(rule), |
4717 | &dead_cookies); | |
401aa90e JR |
4718 | |
4719 | ofproto_rule_unref(rule); | |
9ca4a86f | 4720 | } |
35f48b8b | 4721 | learned_cookies_flush(ofproto, &dead_cookies); |
9ca4a86f BP |
4722 | ofmonitor_flush(ofproto->connmgr); |
4723 | } | |
79eee1eb | 4724 | } |
79eee1eb BP |
4725 | |
4726 | /* Implements OFPFC_DELETE. */ | |
90bf1e07 | 4727 | static enum ofperr |
baae3d02 | 4728 | delete_flows_loose(struct ofproto *ofproto, |
7024dffe | 4729 | const struct ofputil_flow_mod *fm, |
baae3d02 | 4730 | const struct flow_mod_requester *req) |
15aaf599 | 4731 | OVS_REQUIRES(ofproto_mutex) |
79eee1eb | 4732 | { |
a9b22b7f | 4733 | struct rule_criteria criteria; |
a8e547c1 | 4734 | struct rule_collection rules; |
90bf1e07 | 4735 | enum ofperr error; |
064af421 | 4736 | |
a9b22b7f BP |
4737 | rule_criteria_init(&criteria, fm->table_id, &fm->match, 0, |
4738 | fm->cookie, fm->cookie_mask, | |
4739 | fm->out_port, fm->out_group); | |
dd51dae2 BP |
4740 | rule_criteria_require_rw(&criteria, |
4741 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
a9b22b7f BP |
4742 | error = collect_rules_loose(ofproto, &criteria, &rules); |
4743 | rule_criteria_destroy(&criteria); | |
4744 | ||
802f84ff | 4745 | if (!error) { |
9ca4a86f | 4746 | delete_flows__(&rules, fm->delete_reason, req); |
a8e547c1 BP |
4747 | } |
4748 | rule_collection_destroy(&rules); | |
4749 | ||
4750 | return error; | |
064af421 BP |
4751 | } |
4752 | ||
79eee1eb | 4753 | /* Implements OFPFC_DELETE_STRICT. */ |
90bf1e07 | 4754 | static enum ofperr |
baae3d02 BP |
4755 | delete_flow_strict(struct ofproto *ofproto, const struct ofputil_flow_mod *fm, |
4756 | const struct flow_mod_requester *req) | |
15aaf599 | 4757 | OVS_REQUIRES(ofproto_mutex) |
79eee1eb | 4758 | { |
a9b22b7f | 4759 | struct rule_criteria criteria; |
a8e547c1 | 4760 | struct rule_collection rules; |
90bf1e07 | 4761 | enum ofperr error; |
79eee1eb | 4762 | |
a9b22b7f BP |
4763 | rule_criteria_init(&criteria, fm->table_id, &fm->match, fm->priority, |
4764 | fm->cookie, fm->cookie_mask, | |
4765 | fm->out_port, fm->out_group); | |
dd51dae2 BP |
4766 | rule_criteria_require_rw(&criteria, |
4767 | (fm->flags & OFPUTIL_FF_NO_READONLY) != 0); | |
a9b22b7f BP |
4768 | error = collect_rules_strict(ofproto, &criteria, &rules); |
4769 | rule_criteria_destroy(&criteria); | |
4770 | ||
802f84ff | 4771 | if (!error) { |
9ca4a86f | 4772 | delete_flows__(&rules, fm->delete_reason, req); |
a8e547c1 BP |
4773 | } |
4774 | rule_collection_destroy(&rules); | |
4775 | ||
4776 | return error; | |
abe529af BP |
4777 | } |
4778 | ||
4779 | static void | |
4780 | ofproto_rule_send_removed(struct rule *rule, uint8_t reason) | |
15aaf599 | 4781 | OVS_REQUIRES(ofproto_mutex) |
abe529af BP |
4782 | { |
4783 | struct ofputil_flow_removed fr; | |
dc437090 | 4784 | long long int used; |
abe529af | 4785 | |
834fe5cb BP |
4786 | if (rule_is_hidden(rule) || |
4787 | !(rule->flags & OFPUTIL_FF_SEND_FLOW_REM)) { | |
abe529af BP |
4788 | return; |
4789 | } | |
4790 | ||
5cb7a798 | 4791 | minimatch_expand(&rule->cr.match, &fr.match); |
81a76618 | 4792 | fr.priority = rule->cr.priority; |
abe529af BP |
4793 | fr.cookie = rule->flow_cookie; |
4794 | fr.reason = reason; | |
95216219 | 4795 | fr.table_id = rule->table_id; |
65e0be10 BP |
4796 | calc_duration(rule->created, time_msec(), |
4797 | &fr.duration_sec, &fr.duration_nsec); | |
d10976b7 | 4798 | ovs_mutex_lock(&rule->mutex); |
abe529af | 4799 | fr.idle_timeout = rule->idle_timeout; |
fa2bad0f | 4800 | fr.hard_timeout = rule->hard_timeout; |
d10976b7 | 4801 | ovs_mutex_unlock(&rule->mutex); |
abe529af | 4802 | rule->ofproto->ofproto_class->rule_get_stats(rule, &fr.packet_count, |
dc437090 | 4803 | &fr.byte_count, &used); |
abe529af BP |
4804 | |
4805 | connmgr_send_flow_removed(rule->ofproto->connmgr, &fr); | |
4806 | } | |
4807 | ||
4808 | /* Sends an OpenFlow "flow removed" message with the given 'reason' (either | |
4809 | * OFPRR_HARD_TIMEOUT or OFPRR_IDLE_TIMEOUT), and then removes 'rule' from its | |
4810 | * ofproto. | |
4811 | * | |
4812 | * ofproto implementation ->run() functions should use this function to expire | |
4813 | * OpenFlow flows. */ | |
4814 | void | |
4815 | ofproto_rule_expire(struct rule *rule, uint8_t reason) | |
15aaf599 | 4816 | OVS_REQUIRES(ofproto_mutex) |
abe529af | 4817 | { |
802f84ff JR |
4818 | struct rule_collection rules; |
4819 | ||
4820 | rules.rules = rules.stub; | |
4821 | rules.n = 1; | |
4822 | rules.stub[0] = rule; | |
4823 | delete_flows__(&rules, reason, NULL); | |
79eee1eb | 4824 | } |
994c9973 BP |
4825 | |
4826 | /* Reduces '*timeout' to no more than 'max'. A value of zero in either case | |
4827 | * means "infinite". */ | |
4828 | static void | |
4829 | reduce_timeout(uint16_t max, uint16_t *timeout) | |
4830 | { | |
4831 | if (max && (!*timeout || *timeout > max)) { | |
4832 | *timeout = max; | |
4833 | } | |
4834 | } | |
4835 | ||
4836 | /* If 'idle_timeout' is nonzero, and 'rule' has no idle timeout or an idle | |
4837 | * timeout greater than 'idle_timeout', lowers 'rule''s idle timeout to | |
4838 | * 'idle_timeout' seconds. Similarly for 'hard_timeout'. | |
4839 | * | |
4840 | * Suitable for implementing OFPACT_FIN_TIMEOUT. */ | |
4841 | void | |
4842 | ofproto_rule_reduce_timeouts(struct rule *rule, | |
4843 | uint16_t idle_timeout, uint16_t hard_timeout) | |
d10976b7 | 4844 | OVS_EXCLUDED(ofproto_mutex, rule->mutex) |
994c9973 BP |
4845 | { |
4846 | if (!idle_timeout && !hard_timeout) { | |
4847 | return; | |
4848 | } | |
4849 | ||
abe7b10f | 4850 | ovs_mutex_lock(&ofproto_mutex); |
994c9973 BP |
4851 | if (list_is_empty(&rule->expirable)) { |
4852 | list_insert(&rule->ofproto->expirable, &rule->expirable); | |
4853 | } | |
abe7b10f | 4854 | ovs_mutex_unlock(&ofproto_mutex); |
994c9973 | 4855 | |
d10976b7 | 4856 | ovs_mutex_lock(&rule->mutex); |
994c9973 BP |
4857 | reduce_timeout(idle_timeout, &rule->idle_timeout); |
4858 | reduce_timeout(hard_timeout, &rule->hard_timeout); | |
d10976b7 | 4859 | ovs_mutex_unlock(&rule->mutex); |
994c9973 | 4860 | } |
79eee1eb | 4861 | \f |
90bf1e07 | 4862 | static enum ofperr |
2e4f5fcf | 4863 | handle_flow_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
15aaf599 | 4864 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 4865 | { |
a5b8d268 | 4866 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
a9a2da38 | 4867 | struct ofputil_flow_mod fm; |
f25d0cf3 BP |
4868 | uint64_t ofpacts_stub[1024 / 8]; |
4869 | struct ofpbuf ofpacts; | |
90bf1e07 | 4870 | enum ofperr error; |
064af421 | 4871 | |
76589937 | 4872 | error = reject_slave_controller(ofconn); |
9deba63b | 4873 | if (error) { |
f25d0cf3 | 4874 | goto exit; |
9deba63b | 4875 | } |
3052b0c5 | 4876 | |
f25d0cf3 BP |
4877 | ofpbuf_use_stub(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); |
4878 | error = ofputil_decode_flow_mod(&fm, oh, ofconn_get_protocol(ofconn), | |
7e9f8266 BP |
4879 | &ofpacts, |
4880 | u16_to_ofp(ofproto->max_ports), | |
4881 | ofproto->n_tables); | |
4882 | if (!error) { | |
4883 | error = ofproto_check_ofpacts(ofproto, fm.ofpacts, fm.ofpacts_len); | |
4884 | } | |
548de4dd | 4885 | if (!error) { |
baae3d02 BP |
4886 | struct flow_mod_requester req; |
4887 | ||
4888 | req.ofconn = ofconn; | |
834fe5cb | 4889 | req.xid = oh->xid; |
baae3d02 | 4890 | error = handle_flow_mod__(ofproto, &fm, &req); |
49bdc010 | 4891 | } |
a5b8d268 | 4892 | if (error) { |
f25d0cf3 | 4893 | goto exit_free_ofpacts; |
a5b8d268 | 4894 | } |
2e310801 | 4895 | |
696d1bcf | 4896 | ofconn_report_flow_mod(ofconn, fm.command); |
a5b8d268 | 4897 | |
f25d0cf3 BP |
4898 | exit_free_ofpacts: |
4899 | ofpbuf_uninit(&ofpacts); | |
4900 | exit: | |
4901 | return error; | |
75a75043 BP |
4902 | } |
4903 | ||
90bf1e07 | 4904 | static enum ofperr |
baae3d02 BP |
4905 | handle_flow_mod__(struct ofproto *ofproto, struct ofputil_flow_mod *fm, |
4906 | const struct flow_mod_requester *req) | |
15aaf599 | 4907 | OVS_EXCLUDED(ofproto_mutex) |
75a75043 | 4908 | { |
35412852 | 4909 | enum ofperr error; |
75a75043 | 4910 | |
15aaf599 | 4911 | ovs_mutex_lock(&ofproto_mutex); |
baae3d02 BP |
4912 | switch (fm->command) { |
4913 | case OFPFC_ADD: | |
4914 | error = add_flow(ofproto, fm, req); | |
4915 | break; | |
3052b0c5 | 4916 | |
baae3d02 BP |
4917 | case OFPFC_MODIFY: |
4918 | error = modify_flows_loose(ofproto, fm, req); | |
4919 | break; | |
3052b0c5 | 4920 | |
baae3d02 BP |
4921 | case OFPFC_MODIFY_STRICT: |
4922 | error = modify_flow_strict(ofproto, fm, req); | |
4923 | break; | |
3052b0c5 | 4924 | |
baae3d02 BP |
4925 | case OFPFC_DELETE: |
4926 | error = delete_flows_loose(ofproto, fm, req); | |
4927 | break; | |
3052b0c5 | 4928 | |
baae3d02 BP |
4929 | case OFPFC_DELETE_STRICT: |
4930 | error = delete_flow_strict(ofproto, fm, req); | |
4931 | break; | |
3052b0c5 | 4932 | |
baae3d02 BP |
4933 | default: |
4934 | if (fm->command > 0xff) { | |
4935 | VLOG_WARN_RL(&rl, "%s: flow_mod has explicit table_id but " | |
4936 | "flow_mod_table_id extension is not enabled", | |
4937 | ofproto->name); | |
6c1491fb | 4938 | } |
baae3d02 BP |
4939 | error = OFPERR_OFPFMFC_BAD_COMMAND; |
4940 | break; | |
3052b0c5 | 4941 | } |
baae3d02 | 4942 | ofmonitor_flush(ofproto->connmgr); |
15aaf599 | 4943 | ovs_mutex_unlock(&ofproto_mutex); |
35412852 BP |
4944 | |
4945 | run_rule_executes(ofproto); | |
4946 | return error; | |
3052b0c5 BP |
4947 | } |
4948 | ||
90bf1e07 | 4949 | static enum ofperr |
d1e2cf21 | 4950 | handle_role_request(struct ofconn *ofconn, const struct ofp_header *oh) |
9deba63b | 4951 | { |
f4f1ea7e BP |
4952 | struct ofputil_role_request request; |
4953 | struct ofputil_role_request reply; | |
9deba63b | 4954 | struct ofpbuf *buf; |
6ea4776b JR |
4955 | enum ofperr error; |
4956 | ||
f4f1ea7e | 4957 | error = ofputil_decode_role_message(oh, &request); |
6ea4776b JR |
4958 | if (error) { |
4959 | return error; | |
4960 | } | |
9deba63b | 4961 | |
f4f1ea7e | 4962 | if (request.role != OFPCR12_ROLE_NOCHANGE) { |
f4f1ea7e BP |
4963 | if (request.have_generation_id |
4964 | && !ofconn_set_master_election_id(ofconn, request.generation_id)) { | |
4965 | return OFPERR_OFPRRFC_STALE; | |
6ea4776b | 4966 | } |
6ea4776b | 4967 | |
f4f1ea7e BP |
4968 | ofconn_set_role(ofconn, request.role); |
4969 | } | |
9deba63b | 4970 | |
f4f1ea7e | 4971 | reply.role = ofconn_get_role(ofconn); |
147cc9d3 BP |
4972 | reply.have_generation_id = ofconn_get_master_election_id( |
4973 | ofconn, &reply.generation_id); | |
f4f1ea7e | 4974 | buf = ofputil_encode_role_reply(oh, &reply); |
b0421aa2 | 4975 | ofconn_send_reply(ofconn, buf); |
9deba63b BP |
4976 | |
4977 | return 0; | |
4978 | } | |
4979 | ||
90bf1e07 | 4980 | static enum ofperr |
6c1491fb BP |
4981 | handle_nxt_flow_mod_table_id(struct ofconn *ofconn, |
4982 | const struct ofp_header *oh) | |
4983 | { | |
982697a4 | 4984 | const struct nx_flow_mod_table_id *msg = ofpmsg_body(oh); |
27527aa0 BP |
4985 | enum ofputil_protocol cur, next; |
4986 | ||
4987 | cur = ofconn_get_protocol(ofconn); | |
4988 | next = ofputil_protocol_set_tid(cur, msg->set != 0); | |
4989 | ofconn_set_protocol(ofconn, next); | |
6c1491fb | 4990 | |
6c1491fb BP |
4991 | return 0; |
4992 | } | |
4993 | ||
90bf1e07 | 4994 | static enum ofperr |
d1e2cf21 | 4995 | handle_nxt_set_flow_format(struct ofconn *ofconn, const struct ofp_header *oh) |
09246b99 | 4996 | { |
982697a4 | 4997 | const struct nx_set_flow_format *msg = ofpmsg_body(oh); |
27527aa0 BP |
4998 | enum ofputil_protocol cur, next; |
4999 | enum ofputil_protocol next_base; | |
09246b99 | 5000 | |
27527aa0 BP |
5001 | next_base = ofputil_nx_flow_format_to_protocol(ntohl(msg->format)); |
5002 | if (!next_base) { | |
90bf1e07 | 5003 | return OFPERR_OFPBRC_EPERM; |
09246b99 | 5004 | } |
7ee20df1 | 5005 | |
27527aa0 BP |
5006 | cur = ofconn_get_protocol(ofconn); |
5007 | next = ofputil_protocol_set_base(cur, next_base); | |
27527aa0 | 5008 | ofconn_set_protocol(ofconn, next); |
b20f4073 | 5009 | |
7ee20df1 | 5010 | return 0; |
09246b99 BP |
5011 | } |
5012 | ||
90bf1e07 | 5013 | static enum ofperr |
54834960 EJ |
5014 | handle_nxt_set_packet_in_format(struct ofconn *ofconn, |
5015 | const struct ofp_header *oh) | |
5016 | { | |
982697a4 | 5017 | const struct nx_set_packet_in_format *msg = ofpmsg_body(oh); |
54834960 EJ |
5018 | uint32_t format; |
5019 | ||
54834960 | 5020 | format = ntohl(msg->format); |
a15f0eeb | 5021 | if (format != NXPIF_OPENFLOW10 && format != NXPIF_NXM) { |
90bf1e07 | 5022 | return OFPERR_OFPBRC_EPERM; |
54834960 EJ |
5023 | } |
5024 | ||
54834960 EJ |
5025 | ofconn_set_packet_in_format(ofconn, format); |
5026 | return 0; | |
5027 | } | |
5028 | ||
80d5aefd BP |
5029 | static enum ofperr |
5030 | handle_nxt_set_async_config(struct ofconn *ofconn, const struct ofp_header *oh) | |
5031 | { | |
982697a4 | 5032 | const struct nx_async_config *msg = ofpmsg_body(oh); |
80d5aefd BP |
5033 | uint32_t master[OAM_N_TYPES]; |
5034 | uint32_t slave[OAM_N_TYPES]; | |
5035 | ||
5036 | master[OAM_PACKET_IN] = ntohl(msg->packet_in_mask[0]); | |
5037 | master[OAM_PORT_STATUS] = ntohl(msg->port_status_mask[0]); | |
5038 | master[OAM_FLOW_REMOVED] = ntohl(msg->flow_removed_mask[0]); | |
5039 | ||
5040 | slave[OAM_PACKET_IN] = ntohl(msg->packet_in_mask[1]); | |
5041 | slave[OAM_PORT_STATUS] = ntohl(msg->port_status_mask[1]); | |
5042 | slave[OAM_FLOW_REMOVED] = ntohl(msg->flow_removed_mask[1]); | |
5043 | ||
5044 | ofconn_set_async_config(ofconn, master, slave); | |
4550b647 MM |
5045 | if (ofconn_get_type(ofconn) == OFCONN_SERVICE && |
5046 | !ofconn_get_miss_send_len(ofconn)) { | |
5047 | ofconn_set_miss_send_len(ofconn, OFP_DEFAULT_MISS_SEND_LEN); | |
5048 | } | |
80d5aefd BP |
5049 | |
5050 | return 0; | |
5051 | } | |
5052 | ||
c423b3b3 AC |
5053 | static enum ofperr |
5054 | handle_nxt_get_async_request(struct ofconn *ofconn, const struct ofp_header *oh) | |
5055 | { | |
5056 | struct ofpbuf *buf; | |
5057 | uint32_t master[OAM_N_TYPES]; | |
5058 | uint32_t slave[OAM_N_TYPES]; | |
5059 | struct nx_async_config *msg; | |
5060 | ||
5061 | ofconn_get_async_config(ofconn, master, slave); | |
5062 | buf = ofpraw_alloc_reply(OFPRAW_OFPT13_GET_ASYNC_REPLY, oh, 0); | |
5063 | msg = ofpbuf_put_zeros(buf, sizeof *msg); | |
5064 | ||
5065 | msg->packet_in_mask[0] = htonl(master[OAM_PACKET_IN]); | |
5066 | msg->port_status_mask[0] = htonl(master[OAM_PORT_STATUS]); | |
5067 | msg->flow_removed_mask[0] = htonl(master[OAM_FLOW_REMOVED]); | |
5068 | ||
5069 | msg->packet_in_mask[1] = htonl(slave[OAM_PACKET_IN]); | |
5070 | msg->port_status_mask[1] = htonl(slave[OAM_PORT_STATUS]); | |
5071 | msg->flow_removed_mask[1] = htonl(slave[OAM_FLOW_REMOVED]); | |
5072 | ||
5073 | ofconn_send_reply(ofconn, buf); | |
5074 | ||
5075 | return 0; | |
5076 | } | |
5077 | ||
a7349929 BP |
5078 | static enum ofperr |
5079 | handle_nxt_set_controller_id(struct ofconn *ofconn, | |
5080 | const struct ofp_header *oh) | |
5081 | { | |
982697a4 | 5082 | const struct nx_controller_id *nci = ofpmsg_body(oh); |
a7349929 | 5083 | |
a7349929 BP |
5084 | if (!is_all_zeros(nci->zero, sizeof nci->zero)) { |
5085 | return OFPERR_NXBRC_MUST_BE_ZERO; | |
5086 | } | |
5087 | ||
5088 | ofconn_set_controller_id(ofconn, ntohs(nci->controller_id)); | |
5089 | return 0; | |
5090 | } | |
5091 | ||
90bf1e07 | 5092 | static enum ofperr |
d1e2cf21 | 5093 | handle_barrier_request(struct ofconn *ofconn, const struct ofp_header *oh) |
246e61ea | 5094 | { |
246e61ea JP |
5095 | struct ofpbuf *buf; |
5096 | ||
982697a4 BP |
5097 | buf = ofpraw_alloc_reply((oh->version == OFP10_VERSION |
5098 | ? OFPRAW_OFPT10_BARRIER_REPLY | |
5099 | : OFPRAW_OFPT11_BARRIER_REPLY), oh, 0); | |
b0421aa2 | 5100 | ofconn_send_reply(ofconn, buf); |
246e61ea JP |
5101 | return 0; |
5102 | } | |
5103 | ||
2b07c8b1 BP |
5104 | static void |
5105 | ofproto_compose_flow_refresh_update(const struct rule *rule, | |
5106 | enum nx_flow_monitor_flags flags, | |
ca6ba700 | 5107 | struct ovs_list *msgs) |
15aaf599 | 5108 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 | 5109 | { |
6f00e29b | 5110 | const struct rule_actions *actions; |
2b07c8b1 | 5111 | struct ofputil_flow_update fu; |
5cb7a798 | 5112 | struct match match; |
2b07c8b1 | 5113 | |
2b07c8b1 BP |
5114 | fu.event = (flags & (NXFMF_INITIAL | NXFMF_ADD) |
5115 | ? NXFME_ADDED : NXFME_MODIFIED); | |
5116 | fu.reason = 0; | |
d10976b7 | 5117 | ovs_mutex_lock(&rule->mutex); |
2b07c8b1 BP |
5118 | fu.idle_timeout = rule->idle_timeout; |
5119 | fu.hard_timeout = rule->hard_timeout; | |
d10976b7 | 5120 | ovs_mutex_unlock(&rule->mutex); |
2b07c8b1 BP |
5121 | fu.table_id = rule->table_id; |
5122 | fu.cookie = rule->flow_cookie; | |
5cb7a798 BP |
5123 | minimatch_expand(&rule->cr.match, &match); |
5124 | fu.match = &match; | |
6b140a4e | 5125 | fu.priority = rule->cr.priority; |
6f00e29b | 5126 | |
b20f4073 | 5127 | actions = flags & NXFMF_ACTIONS ? rule_get_actions(rule) : NULL; |
6f00e29b BP |
5128 | fu.ofpacts = actions ? actions->ofpacts : NULL; |
5129 | fu.ofpacts_len = actions ? actions->ofpacts_len : 0; | |
2b07c8b1 BP |
5130 | |
5131 | if (list_is_empty(msgs)) { | |
5132 | ofputil_start_flow_update(msgs); | |
5133 | } | |
5134 | ofputil_append_flow_update(&fu, msgs); | |
5135 | } | |
5136 | ||
5137 | void | |
a8e547c1 | 5138 | ofmonitor_compose_refresh_updates(struct rule_collection *rules, |
ca6ba700 | 5139 | struct ovs_list *msgs) |
15aaf599 | 5140 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 | 5141 | { |
a8e547c1 | 5142 | size_t i; |
2b07c8b1 | 5143 | |
a8e547c1 BP |
5144 | for (i = 0; i < rules->n; i++) { |
5145 | struct rule *rule = rules->rules[i]; | |
2b07c8b1 BP |
5146 | enum nx_flow_monitor_flags flags = rule->monitor_flags; |
5147 | rule->monitor_flags = 0; | |
5148 | ||
5149 | ofproto_compose_flow_refresh_update(rule, flags, msgs); | |
5150 | } | |
5151 | } | |
5152 | ||
5153 | static void | |
5154 | ofproto_collect_ofmonitor_refresh_rule(const struct ofmonitor *m, | |
5155 | struct rule *rule, uint64_t seqno, | |
a8e547c1 | 5156 | struct rule_collection *rules) |
15aaf599 | 5157 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
5158 | { |
5159 | enum nx_flow_monitor_flags update; | |
5160 | ||
5e8b38b0 | 5161 | if (rule_is_hidden(rule)) { |
2b07c8b1 BP |
5162 | return; |
5163 | } | |
5164 | ||
b20f4073 | 5165 | if (!ofproto_rule_has_out_port(rule, m->out_port)) { |
2b07c8b1 BP |
5166 | return; |
5167 | } | |
5168 | ||
5169 | if (seqno) { | |
5170 | if (rule->add_seqno > seqno) { | |
5171 | update = NXFMF_ADD | NXFMF_MODIFY; | |
5172 | } else if (rule->modify_seqno > seqno) { | |
5173 | update = NXFMF_MODIFY; | |
5174 | } else { | |
5175 | return; | |
5176 | } | |
5177 | ||
5178 | if (!(m->flags & update)) { | |
5179 | return; | |
5180 | } | |
5181 | } else { | |
5182 | update = NXFMF_INITIAL; | |
5183 | } | |
5184 | ||
5185 | if (!rule->monitor_flags) { | |
a8e547c1 | 5186 | rule_collection_add(rules, rule); |
2b07c8b1 BP |
5187 | } |
5188 | rule->monitor_flags |= update | (m->flags & NXFMF_ACTIONS); | |
5189 | } | |
5190 | ||
5191 | static void | |
5192 | ofproto_collect_ofmonitor_refresh_rules(const struct ofmonitor *m, | |
5193 | uint64_t seqno, | |
a8e547c1 | 5194 | struct rule_collection *rules) |
15aaf599 | 5195 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
5196 | { |
5197 | const struct ofproto *ofproto = ofconn_get_ofproto(m->ofconn); | |
2b07c8b1 | 5198 | const struct oftable *table; |
81a76618 | 5199 | struct cls_rule target; |
2b07c8b1 | 5200 | |
5cb7a798 | 5201 | cls_rule_init_from_minimatch(&target, &m->match, 0); |
2b07c8b1 | 5202 | FOR_EACH_MATCHING_TABLE (table, m->table_id, ofproto) { |
2b07c8b1 BP |
5203 | struct rule *rule; |
5204 | ||
5f0476ce | 5205 | CLS_FOR_EACH_TARGET (rule, cr, &table->cls, &target) { |
2b07c8b1 BP |
5206 | ofproto_collect_ofmonitor_refresh_rule(m, rule, seqno, rules); |
5207 | } | |
5208 | } | |
48d28ac1 | 5209 | cls_rule_destroy(&target); |
2b07c8b1 BP |
5210 | } |
5211 | ||
5212 | static void | |
5213 | ofproto_collect_ofmonitor_initial_rules(struct ofmonitor *m, | |
a8e547c1 | 5214 | struct rule_collection *rules) |
15aaf599 | 5215 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
5216 | { |
5217 | if (m->flags & NXFMF_INITIAL) { | |
5218 | ofproto_collect_ofmonitor_refresh_rules(m, 0, rules); | |
5219 | } | |
5220 | } | |
5221 | ||
5222 | void | |
5223 | ofmonitor_collect_resume_rules(struct ofmonitor *m, | |
a8e547c1 | 5224 | uint64_t seqno, struct rule_collection *rules) |
15aaf599 | 5225 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
5226 | { |
5227 | ofproto_collect_ofmonitor_refresh_rules(m, seqno, rules); | |
5228 | } | |
5229 | ||
7b900689 SH |
5230 | static enum ofperr |
5231 | flow_monitor_delete(struct ofconn *ofconn, uint32_t id) | |
5232 | OVS_REQUIRES(ofproto_mutex) | |
5233 | { | |
5234 | struct ofmonitor *m; | |
5235 | enum ofperr error; | |
5236 | ||
5237 | m = ofmonitor_lookup(ofconn, id); | |
5238 | if (m) { | |
5239 | ofmonitor_destroy(m); | |
5240 | error = 0; | |
5241 | } else { | |
5242 | error = OFPERR_OFPMOFC_UNKNOWN_MONITOR; | |
5243 | } | |
5244 | ||
5245 | return error; | |
5246 | } | |
5247 | ||
2b07c8b1 | 5248 | static enum ofperr |
982697a4 | 5249 | handle_flow_monitor_request(struct ofconn *ofconn, const struct ofp_header *oh) |
15aaf599 | 5250 | OVS_EXCLUDED(ofproto_mutex) |
2b07c8b1 BP |
5251 | { |
5252 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
5253 | struct ofmonitor **monitors; | |
5254 | size_t n_monitors, allocated_monitors; | |
a8e547c1 | 5255 | struct rule_collection rules; |
ca6ba700 | 5256 | struct ovs_list replies; |
2b07c8b1 | 5257 | enum ofperr error; |
2b07c8b1 BP |
5258 | struct ofpbuf b; |
5259 | size_t i; | |
5260 | ||
982697a4 | 5261 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
2b07c8b1 BP |
5262 | monitors = NULL; |
5263 | n_monitors = allocated_monitors = 0; | |
15aaf599 BP |
5264 | |
5265 | ovs_mutex_lock(&ofproto_mutex); | |
2b07c8b1 BP |
5266 | for (;;) { |
5267 | struct ofputil_flow_monitor_request request; | |
5268 | struct ofmonitor *m; | |
5269 | int retval; | |
5270 | ||
5271 | retval = ofputil_decode_flow_monitor_request(&request, &b); | |
5272 | if (retval == EOF) { | |
5273 | break; | |
5274 | } else if (retval) { | |
5275 | error = retval; | |
5276 | goto error; | |
5277 | } | |
5278 | ||
5279 | if (request.table_id != 0xff | |
5280 | && request.table_id >= ofproto->n_tables) { | |
5281 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
5282 | goto error; | |
5283 | } | |
5284 | ||
5285 | error = ofmonitor_create(&request, ofconn, &m); | |
5286 | if (error) { | |
5287 | goto error; | |
5288 | } | |
5289 | ||
5290 | if (n_monitors >= allocated_monitors) { | |
5291 | monitors = x2nrealloc(monitors, &allocated_monitors, | |
5292 | sizeof *monitors); | |
5293 | } | |
5294 | monitors[n_monitors++] = m; | |
5295 | } | |
5296 | ||
a8e547c1 | 5297 | rule_collection_init(&rules); |
2b07c8b1 BP |
5298 | for (i = 0; i < n_monitors; i++) { |
5299 | ofproto_collect_ofmonitor_initial_rules(monitors[i], &rules); | |
5300 | } | |
5301 | ||
982697a4 | 5302 | ofpmp_init(&replies, oh); |
2b07c8b1 | 5303 | ofmonitor_compose_refresh_updates(&rules, &replies); |
15aaf599 BP |
5304 | ovs_mutex_unlock(&ofproto_mutex); |
5305 | ||
a8e547c1 BP |
5306 | rule_collection_destroy(&rules); |
5307 | ||
2b07c8b1 | 5308 | ofconn_send_replies(ofconn, &replies); |
2b07c8b1 BP |
5309 | free(monitors); |
5310 | ||
5311 | return 0; | |
5312 | ||
5313 | error: | |
5314 | for (i = 0; i < n_monitors; i++) { | |
5315 | ofmonitor_destroy(monitors[i]); | |
5316 | } | |
5317 | free(monitors); | |
4cd1bc9d BP |
5318 | ovs_mutex_unlock(&ofproto_mutex); |
5319 | ||
2b07c8b1 BP |
5320 | return error; |
5321 | } | |
5322 | ||
5323 | static enum ofperr | |
5324 | handle_flow_monitor_cancel(struct ofconn *ofconn, const struct ofp_header *oh) | |
15aaf599 | 5325 | OVS_EXCLUDED(ofproto_mutex) |
2b07c8b1 | 5326 | { |
15aaf599 | 5327 | enum ofperr error; |
2b07c8b1 BP |
5328 | uint32_t id; |
5329 | ||
5330 | id = ofputil_decode_flow_monitor_cancel(oh); | |
15aaf599 BP |
5331 | |
5332 | ovs_mutex_lock(&ofproto_mutex); | |
7b900689 | 5333 | error = flow_monitor_delete(ofconn, id); |
15aaf599 | 5334 | ovs_mutex_unlock(&ofproto_mutex); |
2b07c8b1 | 5335 | |
15aaf599 | 5336 | return error; |
2b07c8b1 BP |
5337 | } |
5338 | ||
9cae45dc JR |
5339 | /* Meters implementation. |
5340 | * | |
5341 | * Meter table entry, indexed by the OpenFlow meter_id. | |
9cae45dc JR |
5342 | * 'created' is used to compute the duration for meter stats. |
5343 | * 'list rules' is needed so that we can delete the dependent rules when the | |
5344 | * meter table entry is deleted. | |
5345 | * 'provider_meter_id' is for the provider's private use. | |
5346 | */ | |
5347 | struct meter { | |
5348 | long long int created; /* Time created. */ | |
ca6ba700 | 5349 | struct ovs_list rules; /* List of "struct rule_dpif"s. */ |
9cae45dc JR |
5350 | ofproto_meter_id provider_meter_id; |
5351 | uint16_t flags; /* Meter flags. */ | |
5352 | uint16_t n_bands; /* Number of meter bands. */ | |
5353 | struct ofputil_meter_band *bands; | |
5354 | }; | |
5355 | ||
5356 | /* | |
5357 | * This is used in instruction validation at flow set-up time, | |
5358 | * as flows may not use non-existing meters. | |
9cae45dc JR |
5359 | * Return value of UINT32_MAX signifies an invalid meter. |
5360 | */ | |
65efd2ab JR |
5361 | static uint32_t |
5362 | get_provider_meter_id(const struct ofproto *ofproto, uint32_t of_meter_id) | |
9cae45dc JR |
5363 | { |
5364 | if (of_meter_id && of_meter_id <= ofproto->meter_features.max_meters) { | |
5365 | const struct meter *meter = ofproto->meters[of_meter_id]; | |
5366 | if (meter) { | |
5367 | return meter->provider_meter_id.uint32; | |
5368 | } | |
5369 | } | |
5370 | return UINT32_MAX; | |
5371 | } | |
5372 | ||
062fea06 BP |
5373 | /* Finds the meter invoked by 'rule''s actions and adds 'rule' to the meter's |
5374 | * list of rules. */ | |
5375 | static void | |
5376 | meter_insert_rule(struct rule *rule) | |
5377 | { | |
5378 | const struct rule_actions *a = rule_get_actions(rule); | |
5379 | uint32_t meter_id = ofpacts_get_meter(a->ofpacts, a->ofpacts_len); | |
5380 | struct meter *meter = rule->ofproto->meters[meter_id]; | |
5381 | ||
5382 | list_insert(&meter->rules, &rule->meter_list_node); | |
5383 | } | |
5384 | ||
9cae45dc JR |
5385 | static void |
5386 | meter_update(struct meter *meter, const struct ofputil_meter_config *config) | |
5387 | { | |
5388 | free(meter->bands); | |
5389 | ||
5390 | meter->flags = config->flags; | |
5391 | meter->n_bands = config->n_bands; | |
5392 | meter->bands = xmemdup(config->bands, | |
5393 | config->n_bands * sizeof *meter->bands); | |
5394 | } | |
5395 | ||
5396 | static struct meter * | |
5397 | meter_create(const struct ofputil_meter_config *config, | |
5398 | ofproto_meter_id provider_meter_id) | |
5399 | { | |
5400 | struct meter *meter; | |
5401 | ||
5402 | meter = xzalloc(sizeof *meter); | |
5403 | meter->provider_meter_id = provider_meter_id; | |
5404 | meter->created = time_msec(); | |
5405 | list_init(&meter->rules); | |
5406 | ||
5407 | meter_update(meter, config); | |
5408 | ||
5409 | return meter; | |
5410 | } | |
5411 | ||
6b3f7f02 JR |
5412 | static void |
5413 | meter_delete(struct ofproto *ofproto, uint32_t first, uint32_t last) | |
15aaf599 | 5414 | OVS_REQUIRES(ofproto_mutex) |
6b3f7f02 JR |
5415 | { |
5416 | uint32_t mid; | |
5417 | for (mid = first; mid <= last; ++mid) { | |
5418 | struct meter *meter = ofproto->meters[mid]; | |
5419 | if (meter) { | |
5420 | ofproto->meters[mid] = NULL; | |
5421 | ofproto->ofproto_class->meter_del(ofproto, | |
5422 | meter->provider_meter_id); | |
5423 | free(meter->bands); | |
5424 | free(meter); | |
5425 | } | |
5426 | } | |
5427 | } | |
5428 | ||
9cae45dc JR |
5429 | static enum ofperr |
5430 | handle_add_meter(struct ofproto *ofproto, struct ofputil_meter_mod *mm) | |
5431 | { | |
5432 | ofproto_meter_id provider_meter_id = { UINT32_MAX }; | |
5433 | struct meter **meterp = &ofproto->meters[mm->meter.meter_id]; | |
5434 | enum ofperr error; | |
5435 | ||
5436 | if (*meterp) { | |
5437 | return OFPERR_OFPMMFC_METER_EXISTS; | |
5438 | } | |
5439 | ||
5440 | error = ofproto->ofproto_class->meter_set(ofproto, &provider_meter_id, | |
5441 | &mm->meter); | |
5442 | if (!error) { | |
5443 | ovs_assert(provider_meter_id.uint32 != UINT32_MAX); | |
5444 | *meterp = meter_create(&mm->meter, provider_meter_id); | |
5445 | } | |
f0f8c6c2 | 5446 | return error; |
9cae45dc JR |
5447 | } |
5448 | ||
5449 | static enum ofperr | |
5450 | handle_modify_meter(struct ofproto *ofproto, struct ofputil_meter_mod *mm) | |
5451 | { | |
5452 | struct meter *meter = ofproto->meters[mm->meter.meter_id]; | |
5453 | enum ofperr error; | |
e555eb7c | 5454 | uint32_t provider_meter_id; |
9cae45dc JR |
5455 | |
5456 | if (!meter) { | |
5457 | return OFPERR_OFPMMFC_UNKNOWN_METER; | |
5458 | } | |
5459 | ||
e555eb7c | 5460 | provider_meter_id = meter->provider_meter_id.uint32; |
9cae45dc JR |
5461 | error = ofproto->ofproto_class->meter_set(ofproto, |
5462 | &meter->provider_meter_id, | |
5463 | &mm->meter); | |
e555eb7c | 5464 | ovs_assert(meter->provider_meter_id.uint32 == provider_meter_id); |
9cae45dc JR |
5465 | if (!error) { |
5466 | meter_update(meter, &mm->meter); | |
5467 | } | |
5468 | return error; | |
5469 | } | |
5470 | ||
5471 | static enum ofperr | |
baae3d02 | 5472 | handle_delete_meter(struct ofconn *ofconn, struct ofputil_meter_mod *mm) |
15aaf599 | 5473 | OVS_EXCLUDED(ofproto_mutex) |
9cae45dc JR |
5474 | { |
5475 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
5476 | uint32_t meter_id = mm->meter.meter_id; | |
a8e547c1 BP |
5477 | struct rule_collection rules; |
5478 | enum ofperr error = 0; | |
9cae45dc | 5479 | uint32_t first, last; |
9cae45dc JR |
5480 | |
5481 | if (meter_id == OFPM13_ALL) { | |
5482 | first = 1; | |
5483 | last = ofproto->meter_features.max_meters; | |
5484 | } else { | |
5485 | if (!meter_id || meter_id > ofproto->meter_features.max_meters) { | |
5486 | return 0; | |
5487 | } | |
5488 | first = last = meter_id; | |
5489 | } | |
5490 | ||
5491 | /* First delete the rules that use this meter. If any of those rules are | |
5492 | * currently being modified, postpone the whole operation until later. */ | |
a8e547c1 | 5493 | rule_collection_init(&rules); |
15aaf599 | 5494 | ovs_mutex_lock(&ofproto_mutex); |
9cae45dc JR |
5495 | for (meter_id = first; meter_id <= last; ++meter_id) { |
5496 | struct meter *meter = ofproto->meters[meter_id]; | |
5497 | if (meter && !list_is_empty(&meter->rules)) { | |
5498 | struct rule *rule; | |
5499 | ||
5500 | LIST_FOR_EACH (rule, meter_list_node, &meter->rules) { | |
a8e547c1 | 5501 | rule_collection_add(&rules, rule); |
9cae45dc JR |
5502 | } |
5503 | } | |
5504 | } | |
802f84ff | 5505 | delete_flows__(&rules, OFPRR_METER_DELETE, NULL); |
9cae45dc JR |
5506 | |
5507 | /* Delete the meters. */ | |
6b3f7f02 | 5508 | meter_delete(ofproto, first, last); |
9cae45dc | 5509 | |
15aaf599 | 5510 | ovs_mutex_unlock(&ofproto_mutex); |
a8e547c1 BP |
5511 | rule_collection_destroy(&rules); |
5512 | ||
5513 | return error; | |
9cae45dc JR |
5514 | } |
5515 | ||
5516 | static enum ofperr | |
5517 | handle_meter_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
5518 | { | |
5519 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
5520 | struct ofputil_meter_mod mm; | |
5521 | uint64_t bands_stub[256 / 8]; | |
5522 | struct ofpbuf bands; | |
5523 | uint32_t meter_id; | |
5524 | enum ofperr error; | |
5525 | ||
5526 | error = reject_slave_controller(ofconn); | |
5527 | if (error) { | |
5528 | return error; | |
5529 | } | |
5530 | ||
5531 | ofpbuf_use_stub(&bands, bands_stub, sizeof bands_stub); | |
5532 | ||
5533 | error = ofputil_decode_meter_mod(oh, &mm, &bands); | |
5534 | if (error) { | |
5535 | goto exit_free_bands; | |
5536 | } | |
5537 | ||
5538 | meter_id = mm.meter.meter_id; | |
5539 | ||
5540 | if (mm.command != OFPMC13_DELETE) { | |
5541 | /* Fails also when meters are not implemented by the provider. */ | |
b31e8700 | 5542 | if (meter_id == 0 || meter_id > OFPM13_MAX) { |
9cae45dc JR |
5543 | error = OFPERR_OFPMMFC_INVALID_METER; |
5544 | goto exit_free_bands; | |
b31e8700 JR |
5545 | } else if (meter_id > ofproto->meter_features.max_meters) { |
5546 | error = OFPERR_OFPMMFC_OUT_OF_METERS; | |
5547 | goto exit_free_bands; | |
9cae45dc JR |
5548 | } |
5549 | if (mm.meter.n_bands > ofproto->meter_features.max_bands) { | |
5550 | error = OFPERR_OFPMMFC_OUT_OF_BANDS; | |
5551 | goto exit_free_bands; | |
5552 | } | |
5553 | } | |
5554 | ||
5555 | switch (mm.command) { | |
5556 | case OFPMC13_ADD: | |
5557 | error = handle_add_meter(ofproto, &mm); | |
5558 | break; | |
5559 | ||
5560 | case OFPMC13_MODIFY: | |
5561 | error = handle_modify_meter(ofproto, &mm); | |
5562 | break; | |
5563 | ||
5564 | case OFPMC13_DELETE: | |
baae3d02 | 5565 | error = handle_delete_meter(ofconn, &mm); |
9cae45dc JR |
5566 | break; |
5567 | ||
5568 | default: | |
5569 | error = OFPERR_OFPMMFC_BAD_COMMAND; | |
5570 | break; | |
5571 | } | |
5572 | ||
5573 | exit_free_bands: | |
5574 | ofpbuf_uninit(&bands); | |
5575 | return error; | |
5576 | } | |
5577 | ||
5578 | static enum ofperr | |
5579 | handle_meter_features_request(struct ofconn *ofconn, | |
5580 | const struct ofp_header *request) | |
5581 | { | |
5582 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
5583 | struct ofputil_meter_features features; | |
5584 | struct ofpbuf *b; | |
5585 | ||
5586 | if (ofproto->ofproto_class->meter_get_features) { | |
5587 | ofproto->ofproto_class->meter_get_features(ofproto, &features); | |
5588 | } else { | |
5589 | memset(&features, 0, sizeof features); | |
5590 | } | |
5591 | b = ofputil_encode_meter_features_reply(&features, request); | |
5592 | ||
5593 | ofconn_send_reply(ofconn, b); | |
5594 | return 0; | |
5595 | } | |
5596 | ||
5597 | static enum ofperr | |
5598 | handle_meter_request(struct ofconn *ofconn, const struct ofp_header *request, | |
5599 | enum ofptype type) | |
5600 | { | |
5601 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
ca6ba700 | 5602 | struct ovs_list replies; |
9cae45dc JR |
5603 | uint64_t bands_stub[256 / 8]; |
5604 | struct ofpbuf bands; | |
5605 | uint32_t meter_id, first, last; | |
5606 | ||
5607 | ofputil_decode_meter_request(request, &meter_id); | |
5608 | ||
5609 | if (meter_id == OFPM13_ALL) { | |
5610 | first = 1; | |
5611 | last = ofproto->meter_features.max_meters; | |
5612 | } else { | |
5613 | if (!meter_id || meter_id > ofproto->meter_features.max_meters || | |
5614 | !ofproto->meters[meter_id]) { | |
5615 | return OFPERR_OFPMMFC_UNKNOWN_METER; | |
5616 | } | |
5617 | first = last = meter_id; | |
5618 | } | |
5619 | ||
5620 | ofpbuf_use_stub(&bands, bands_stub, sizeof bands_stub); | |
5621 | ofpmp_init(&replies, request); | |
5622 | ||
5623 | for (meter_id = first; meter_id <= last; ++meter_id) { | |
5624 | struct meter *meter = ofproto->meters[meter_id]; | |
5625 | if (!meter) { | |
5626 | continue; /* Skip non-existing meters. */ | |
5627 | } | |
261bd854 | 5628 | if (type == OFPTYPE_METER_STATS_REQUEST) { |
9cae45dc JR |
5629 | struct ofputil_meter_stats stats; |
5630 | ||
5631 | stats.meter_id = meter_id; | |
5632 | ||
5633 | /* Provider sets the packet and byte counts, we do the rest. */ | |
5634 | stats.flow_count = list_size(&meter->rules); | |
5635 | calc_duration(meter->created, time_msec(), | |
5636 | &stats.duration_sec, &stats.duration_nsec); | |
5637 | stats.n_bands = meter->n_bands; | |
5638 | ofpbuf_clear(&bands); | |
5639 | stats.bands | |
5640 | = ofpbuf_put_uninit(&bands, | |
5641 | meter->n_bands * sizeof *stats.bands); | |
5642 | ||
5643 | if (!ofproto->ofproto_class->meter_get(ofproto, | |
5644 | meter->provider_meter_id, | |
5645 | &stats)) { | |
5646 | ofputil_append_meter_stats(&replies, &stats); | |
5647 | } | |
5648 | } else { /* type == OFPTYPE_METER_CONFIG_REQUEST */ | |
5649 | struct ofputil_meter_config config; | |
5650 | ||
5651 | config.meter_id = meter_id; | |
5652 | config.flags = meter->flags; | |
5653 | config.n_bands = meter->n_bands; | |
5654 | config.bands = meter->bands; | |
5655 | ofputil_append_meter_config(&replies, &config); | |
5656 | } | |
5657 | } | |
5658 | ||
5659 | ofconn_send_replies(ofconn, &replies); | |
5660 | ofpbuf_uninit(&bands); | |
5661 | return 0; | |
5662 | } | |
5663 | ||
3fc3b679 AZ |
5664 | static bool |
5665 | ofproto_group_lookup__(const struct ofproto *ofproto, uint32_t group_id, | |
5666 | struct ofgroup **group) | |
5667 | OVS_REQ_RDLOCK(ofproto->groups_rwlock) | |
7395c052 | 5668 | { |
7395c052 NZ |
5669 | HMAP_FOR_EACH_IN_BUCKET (*group, hmap_node, |
5670 | hash_int(group_id, 0), &ofproto->groups) { | |
5671 | if ((*group)->group_id == group_id) { | |
7395c052 NZ |
5672 | return true; |
5673 | } | |
5674 | } | |
3fc3b679 | 5675 | |
7395c052 NZ |
5676 | return false; |
5677 | } | |
5678 | ||
3fc3b679 AZ |
5679 | /* If the group exists, this function increments the groups's reference count. |
5680 | * | |
5681 | * Make sure to call ofproto_group_unref() after no longer needing to maintain | |
5682 | * a reference to the group. */ | |
5683 | bool | |
5684 | ofproto_group_lookup(const struct ofproto *ofproto, uint32_t group_id, | |
5685 | struct ofgroup **group) | |
7395c052 | 5686 | { |
3fc3b679 AZ |
5687 | bool found; |
5688 | ||
5689 | ovs_rwlock_rdlock(&ofproto->groups_rwlock); | |
5690 | found = ofproto_group_lookup__(ofproto, group_id, group); | |
5691 | if (found) { | |
5692 | ofproto_group_ref(*group); | |
7395c052 | 5693 | } |
3fc3b679 AZ |
5694 | ovs_rwlock_unlock(&ofproto->groups_rwlock); |
5695 | return found; | |
7395c052 NZ |
5696 | } |
5697 | ||
5698 | static bool | |
7e9f8266 | 5699 | ofproto_group_exists__(const struct ofproto *ofproto, uint32_t group_id) |
7395c052 NZ |
5700 | OVS_REQ_RDLOCK(ofproto->groups_rwlock) |
5701 | { | |
5702 | struct ofgroup *grp; | |
5703 | ||
5704 | HMAP_FOR_EACH_IN_BUCKET (grp, hmap_node, | |
5705 | hash_int(group_id, 0), &ofproto->groups) { | |
5706 | if (grp->group_id == group_id) { | |
5707 | return true; | |
5708 | } | |
5709 | } | |
5710 | return false; | |
5711 | } | |
5712 | ||
7e9f8266 BP |
5713 | static bool |
5714 | ofproto_group_exists(const struct ofproto *ofproto, uint32_t group_id) | |
5715 | OVS_EXCLUDED(ofproto->groups_rwlock) | |
5716 | { | |
5717 | bool exists; | |
5718 | ||
5719 | ovs_rwlock_rdlock(&ofproto->groups_rwlock); | |
5720 | exists = ofproto_group_exists__(ofproto, group_id); | |
5721 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
5722 | ||
5723 | return exists; | |
5724 | } | |
5725 | ||
732feb93 SH |
5726 | static uint32_t |
5727 | group_get_ref_count(struct ofgroup *group) | |
5728 | OVS_EXCLUDED(ofproto_mutex) | |
5729 | { | |
eaf004bd | 5730 | struct ofproto *ofproto = CONST_CAST(struct ofproto *, group->ofproto); |
732feb93 SH |
5731 | struct rule_criteria criteria; |
5732 | struct rule_collection rules; | |
5733 | struct match match; | |
5734 | enum ofperr error; | |
5735 | uint32_t count; | |
5736 | ||
5737 | match_init_catchall(&match); | |
5738 | rule_criteria_init(&criteria, 0xff, &match, 0, htonll(0), htonll(0), | |
5739 | OFPP_ANY, group->group_id); | |
5740 | ovs_mutex_lock(&ofproto_mutex); | |
5741 | error = collect_rules_loose(ofproto, &criteria, &rules); | |
5742 | ovs_mutex_unlock(&ofproto_mutex); | |
5743 | rule_criteria_destroy(&criteria); | |
5744 | ||
5745 | count = !error && rules.n < UINT32_MAX ? rules.n : UINT32_MAX; | |
5746 | ||
5747 | rule_collection_destroy(&rules); | |
5748 | return count; | |
5749 | } | |
5750 | ||
7395c052 | 5751 | static void |
ca6ba700 | 5752 | append_group_stats(struct ofgroup *group, struct ovs_list *replies) |
7395c052 NZ |
5753 | { |
5754 | struct ofputil_group_stats ogs; | |
eaf004bd | 5755 | const struct ofproto *ofproto = group->ofproto; |
7395c052 NZ |
5756 | long long int now = time_msec(); |
5757 | int error; | |
5758 | ||
646b2a9c SH |
5759 | ogs.bucket_stats = xmalloc(group->n_buckets * sizeof *ogs.bucket_stats); |
5760 | ||
732feb93 SH |
5761 | /* Provider sets the packet and byte counts, we do the rest. */ |
5762 | ogs.ref_count = group_get_ref_count(group); | |
5763 | ogs.n_buckets = group->n_buckets; | |
5764 | ||
7395c052 NZ |
5765 | error = (ofproto->ofproto_class->group_get_stats |
5766 | ? ofproto->ofproto_class->group_get_stats(group, &ogs) | |
5767 | : EOPNOTSUPP); | |
5768 | if (error) { | |
7395c052 NZ |
5769 | ogs.packet_count = UINT64_MAX; |
5770 | ogs.byte_count = UINT64_MAX; | |
7395c052 NZ |
5771 | memset(ogs.bucket_stats, 0xff, |
5772 | ogs.n_buckets * sizeof *ogs.bucket_stats); | |
5773 | } | |
5774 | ||
5775 | ogs.group_id = group->group_id; | |
5776 | calc_duration(group->created, now, &ogs.duration_sec, &ogs.duration_nsec); | |
5777 | ||
5778 | ofputil_append_group_stats(replies, &ogs); | |
646b2a9c SH |
5779 | |
5780 | free(ogs.bucket_stats); | |
7395c052 NZ |
5781 | } |
5782 | ||
19187a71 BP |
5783 | static void |
5784 | handle_group_request(struct ofconn *ofconn, | |
5785 | const struct ofp_header *request, uint32_t group_id, | |
ca6ba700 | 5786 | void (*cb)(struct ofgroup *, struct ovs_list *replies)) |
7395c052 NZ |
5787 | { |
5788 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
7395c052 | 5789 | struct ofgroup *group; |
ca6ba700 | 5790 | struct ovs_list replies; |
7395c052 NZ |
5791 | |
5792 | ofpmp_init(&replies, request); | |
7395c052 NZ |
5793 | if (group_id == OFPG_ALL) { |
5794 | ovs_rwlock_rdlock(&ofproto->groups_rwlock); | |
5795 | HMAP_FOR_EACH (group, hmap_node, &ofproto->groups) { | |
19187a71 | 5796 | cb(group, &replies); |
7395c052 NZ |
5797 | } |
5798 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
5799 | } else { | |
5800 | if (ofproto_group_lookup(ofproto, group_id, &group)) { | |
19187a71 | 5801 | cb(group, &replies); |
809c7548 | 5802 | ofproto_group_unref(group); |
7395c052 NZ |
5803 | } |
5804 | } | |
7395c052 | 5805 | ofconn_send_replies(ofconn, &replies); |
7395c052 NZ |
5806 | } |
5807 | ||
5808 | static enum ofperr | |
19187a71 BP |
5809 | handle_group_stats_request(struct ofconn *ofconn, |
5810 | const struct ofp_header *request) | |
7395c052 | 5811 | { |
19187a71 BP |
5812 | uint32_t group_id; |
5813 | enum ofperr error; | |
7395c052 | 5814 | |
19187a71 BP |
5815 | error = ofputil_decode_group_stats_request(request, &group_id); |
5816 | if (error) { | |
5817 | return error; | |
7395c052 | 5818 | } |
7395c052 | 5819 | |
19187a71 BP |
5820 | handle_group_request(ofconn, request, group_id, append_group_stats); |
5821 | return 0; | |
5822 | } | |
5823 | ||
5824 | static void | |
ca6ba700 | 5825 | append_group_desc(struct ofgroup *group, struct ovs_list *replies) |
19187a71 BP |
5826 | { |
5827 | struct ofputil_group_desc gds; | |
7395c052 | 5828 | |
19187a71 BP |
5829 | gds.group_id = group->group_id; |
5830 | gds.type = group->type; | |
53eb84a5 SH |
5831 | gds.props = group->props; |
5832 | ||
19187a71 BP |
5833 | ofputil_append_group_desc_reply(&gds, &group->buckets, replies); |
5834 | } | |
5835 | ||
5836 | static enum ofperr | |
5837 | handle_group_desc_stats_request(struct ofconn *ofconn, | |
5838 | const struct ofp_header *request) | |
5839 | { | |
5840 | handle_group_request(ofconn, request, | |
5841 | ofputil_decode_group_desc_request(request), | |
5842 | append_group_desc); | |
7395c052 NZ |
5843 | return 0; |
5844 | } | |
5845 | ||
5846 | static enum ofperr | |
5847 | handle_group_features_stats_request(struct ofconn *ofconn, | |
5848 | const struct ofp_header *request) | |
5849 | { | |
5850 | struct ofproto *p = ofconn_get_ofproto(ofconn); | |
5851 | struct ofpbuf *msg; | |
5852 | ||
5853 | msg = ofputil_encode_group_features_reply(&p->ogf, request); | |
5854 | if (msg) { | |
5855 | ofconn_send_reply(ofconn, msg); | |
5856 | } | |
5857 | ||
5858 | return 0; | |
5859 | } | |
5860 | ||
e8f9a7bb VG |
5861 | static enum ofperr |
5862 | handle_queue_get_config_request(struct ofconn *ofconn, | |
5863 | const struct ofp_header *oh) | |
5864 | { | |
5865 | struct ofproto *p = ofconn_get_ofproto(ofconn); | |
5866 | struct netdev_queue_dump queue_dump; | |
5867 | struct ofport *ofport; | |
5868 | unsigned int queue_id; | |
5869 | struct ofpbuf *reply; | |
5870 | struct smap details; | |
5871 | ofp_port_t request; | |
5872 | enum ofperr error; | |
5873 | ||
5874 | error = ofputil_decode_queue_get_config_request(oh, &request); | |
5875 | if (error) { | |
5876 | return error; | |
5877 | } | |
5878 | ||
5879 | ofport = ofproto_get_port(p, request); | |
5880 | if (!ofport) { | |
5881 | return OFPERR_OFPQOFC_BAD_PORT; | |
5882 | } | |
5883 | ||
5884 | reply = ofputil_encode_queue_get_config_reply(oh); | |
5885 | ||
5886 | smap_init(&details); | |
5887 | NETDEV_QUEUE_FOR_EACH (&queue_id, &details, &queue_dump, ofport->netdev) { | |
5888 | struct ofputil_queue_config queue; | |
5889 | ||
5890 | /* None of the existing queues have compatible properties, so we | |
5891 | * hard-code omitting min_rate and max_rate. */ | |
5892 | queue.queue_id = queue_id; | |
5893 | queue.min_rate = UINT16_MAX; | |
5894 | queue.max_rate = UINT16_MAX; | |
5895 | ofputil_append_queue_get_config_reply(reply, &queue); | |
5896 | } | |
5897 | smap_destroy(&details); | |
5898 | ||
5899 | ofconn_send_reply(ofconn, reply); | |
5900 | ||
5901 | return 0; | |
5902 | } | |
5903 | ||
809c7548 RW |
5904 | static enum ofperr |
5905 | init_group(struct ofproto *ofproto, struct ofputil_group_mod *gm, | |
5906 | struct ofgroup **ofgroup) | |
5907 | { | |
5908 | enum ofperr error; | |
eaf004bd | 5909 | const long long int now = time_msec(); |
809c7548 RW |
5910 | |
5911 | if (gm->group_id > OFPG_MAX) { | |
5912 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
5913 | } | |
5914 | if (gm->type > OFPGT11_FF) { | |
5915 | return OFPERR_OFPGMFC_BAD_TYPE; | |
5916 | } | |
5917 | ||
5918 | *ofgroup = ofproto->ofproto_class->group_alloc(); | |
5919 | if (!*ofgroup) { | |
5920 | VLOG_WARN_RL(&rl, "%s: failed to allocate group", ofproto->name); | |
5921 | return OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
5922 | } | |
5923 | ||
eaf004bd AZ |
5924 | (*ofgroup)->ofproto = ofproto; |
5925 | *CONST_CAST(uint32_t *, &((*ofgroup)->group_id)) = gm->group_id; | |
5926 | *CONST_CAST(enum ofp11_group_type *, &(*ofgroup)->type) = gm->type; | |
5927 | *CONST_CAST(long long int *, &((*ofgroup)->created)) = now; | |
5928 | *CONST_CAST(long long int *, &((*ofgroup)->modified)) = now; | |
809c7548 RW |
5929 | ovs_refcount_init(&(*ofgroup)->ref_count); |
5930 | ||
5931 | list_move(&(*ofgroup)->buckets, &gm->buckets); | |
eaf004bd AZ |
5932 | *CONST_CAST(uint32_t *, &(*ofgroup)->n_buckets) = |
5933 | list_size(&(*ofgroup)->buckets); | |
809c7548 | 5934 | |
bc65c25a SH |
5935 | memcpy(CONST_CAST(struct ofputil_group_props *, &(*ofgroup)->props), |
5936 | &gm->props, sizeof (struct ofputil_group_props)); | |
5937 | ||
809c7548 RW |
5938 | /* Construct called BEFORE any locks are held. */ |
5939 | error = ofproto->ofproto_class->group_construct(*ofgroup); | |
5940 | if (error) { | |
5941 | ofputil_bucket_list_destroy(&(*ofgroup)->buckets); | |
5942 | ofproto->ofproto_class->group_dealloc(*ofgroup); | |
5943 | } | |
5944 | return error; | |
5945 | } | |
5946 | ||
6c5b90ce BP |
5947 | /* Implements the OFPGC11_ADD operation specified by 'gm', adding a group to |
5948 | * 'ofproto''s group table. Returns 0 on success or an OpenFlow error code on | |
5949 | * failure. */ | |
7395c052 NZ |
5950 | static enum ofperr |
5951 | add_group(struct ofproto *ofproto, struct ofputil_group_mod *gm) | |
5952 | { | |
5953 | struct ofgroup *ofgroup; | |
5954 | enum ofperr error; | |
5955 | ||
7395c052 | 5956 | /* Allocate new group and initialize it. */ |
809c7548 | 5957 | error = init_group(ofproto, gm, &ofgroup); |
7395c052 | 5958 | if (error) { |
809c7548 | 5959 | return error; |
7395c052 NZ |
5960 | } |
5961 | ||
5962 | /* We wrlock as late as possible to minimize the time we jam any other | |
5963 | * threads: No visible state changes before acquiring the lock. */ | |
5964 | ovs_rwlock_wrlock(&ofproto->groups_rwlock); | |
5965 | ||
5966 | if (ofproto->n_groups[gm->type] >= ofproto->ogf.max_groups[gm->type]) { | |
5967 | error = OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
5968 | goto unlock_out; | |
5969 | } | |
5970 | ||
7e9f8266 | 5971 | if (ofproto_group_exists__(ofproto, gm->group_id)) { |
7395c052 NZ |
5972 | error = OFPERR_OFPGMFC_GROUP_EXISTS; |
5973 | goto unlock_out; | |
5974 | } | |
5975 | ||
5976 | if (!error) { | |
5977 | /* Insert new group. */ | |
5978 | hmap_insert(&ofproto->groups, &ofgroup->hmap_node, | |
5979 | hash_int(ofgroup->group_id, 0)); | |
5980 | ofproto->n_groups[ofgroup->type]++; | |
5981 | ||
5982 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
5983 | return error; | |
5984 | } | |
5985 | ||
5986 | unlock_out: | |
5987 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
5988 | ofproto->ofproto_class->group_destruct(ofgroup); | |
7395c052 NZ |
5989 | ofputil_bucket_list_destroy(&ofgroup->buckets); |
5990 | ofproto->ofproto_class->group_dealloc(ofgroup); | |
5991 | ||
5992 | return error; | |
5993 | } | |
5994 | ||
fce4730c SH |
5995 | /* Adds all of the buckets from 'ofgroup' to 'new_ofgroup'. The buckets |
5996 | * already in 'new_ofgroup' will be placed just after the (copy of the) bucket | |
5997 | * in 'ofgroup' with bucket ID 'command_bucket_id'. Special | |
5998 | * 'command_bucket_id' values OFPG15_BUCKET_FIRST and OFPG15_BUCKET_LAST are | |
5999 | * also honored. */ | |
6000 | static enum ofperr | |
6001 | copy_buckets_for_insert_bucket(const struct ofgroup *ofgroup, | |
6002 | struct ofgroup *new_ofgroup, | |
6003 | uint32_t command_bucket_id) | |
6004 | { | |
6005 | struct ofputil_bucket *last = NULL; | |
6006 | ||
6007 | if (command_bucket_id <= OFPG15_BUCKET_MAX) { | |
6008 | /* Check here to ensure that a bucket corresponding to | |
6009 | * command_bucket_id exists in the old bucket list. | |
6010 | * | |
6011 | * The subsequent search of below of new_ofgroup covers | |
6012 | * both buckets in the old bucket list and buckets added | |
6013 | * by the insert buckets group mod message this function processes. */ | |
6014 | if (!ofputil_bucket_find(&ofgroup->buckets, command_bucket_id)) { | |
6015 | return OFPERR_OFPGMFC_UNKNOWN_BUCKET; | |
6016 | } | |
6017 | ||
6018 | if (!list_is_empty(&new_ofgroup->buckets)) { | |
6019 | last = ofputil_bucket_list_back(&new_ofgroup->buckets); | |
6020 | } | |
6021 | } | |
6022 | ||
6023 | ofputil_bucket_clone_list(&new_ofgroup->buckets, &ofgroup->buckets, NULL); | |
6024 | ||
6025 | if (ofputil_bucket_check_duplicate_id(&ofgroup->buckets)) { | |
6026 | VLOG_WARN_RL(&rl, "Duplicate bucket id"); | |
6027 | return OFPERR_OFPGMFC_BUCKET_EXISTS; | |
6028 | } | |
6029 | ||
6030 | /* Rearrange list according to command_bucket_id */ | |
6031 | if (command_bucket_id == OFPG15_BUCKET_LAST) { | |
6032 | struct ofputil_bucket *new_first; | |
6033 | const struct ofputil_bucket *first; | |
6034 | ||
6035 | first = ofputil_bucket_list_front(&ofgroup->buckets); | |
6036 | new_first = ofputil_bucket_find(&new_ofgroup->buckets, | |
6037 | first->bucket_id); | |
6038 | ||
6039 | list_splice(new_ofgroup->buckets.next, &new_first->list_node, | |
6040 | &new_ofgroup->buckets); | |
6041 | } else if (command_bucket_id <= OFPG15_BUCKET_MAX && last) { | |
6042 | struct ofputil_bucket *after; | |
6043 | ||
6044 | /* Presence of bucket is checked above so after should never be NULL */ | |
6045 | after = ofputil_bucket_find(&new_ofgroup->buckets, command_bucket_id); | |
6046 | ||
6047 | list_splice(after->list_node.next, new_ofgroup->buckets.next, | |
6048 | last->list_node.next); | |
6049 | } | |
6050 | ||
6051 | return 0; | |
6052 | } | |
6053 | ||
6054 | /* Appends all of the a copy of all the buckets from 'ofgroup' to 'new_ofgroup' | |
6055 | * with the exception of the bucket whose bucket id is 'command_bucket_id'. | |
6056 | * Special 'command_bucket_id' values OFPG15_BUCKET_FIRST, OFPG15_BUCKET_LAST | |
6057 | * and OFPG15_BUCKET_ALL are also honored. */ | |
6058 | static enum ofperr | |
6059 | copy_buckets_for_remove_bucket(const struct ofgroup *ofgroup, | |
6060 | struct ofgroup *new_ofgroup, | |
6061 | uint32_t command_bucket_id) | |
6062 | { | |
6063 | const struct ofputil_bucket *skip = NULL; | |
6064 | ||
6065 | if (command_bucket_id == OFPG15_BUCKET_ALL) { | |
6066 | return 0; | |
6067 | } | |
6068 | ||
6069 | if (command_bucket_id == OFPG15_BUCKET_FIRST) { | |
6070 | if (!list_is_empty(&ofgroup->buckets)) { | |
6071 | skip = ofputil_bucket_list_front(&ofgroup->buckets); | |
6072 | } | |
6073 | } else if (command_bucket_id == OFPG15_BUCKET_LAST) { | |
6074 | if (!list_is_empty(&ofgroup->buckets)) { | |
6075 | skip = ofputil_bucket_list_back(&ofgroup->buckets); | |
6076 | } | |
6077 | } else { | |
6078 | skip = ofputil_bucket_find(&ofgroup->buckets, command_bucket_id); | |
6079 | if (!skip) { | |
6080 | return OFPERR_OFPGMFC_UNKNOWN_BUCKET; | |
6081 | } | |
6082 | } | |
6083 | ||
6084 | ofputil_bucket_clone_list(&new_ofgroup->buckets, &ofgroup->buckets, skip); | |
6085 | ||
6086 | return 0; | |
6087 | } | |
6088 | ||
6089 | /* Implements OFPGC11_MODIFY, OFPGC15_INSERT_BUCKET and | |
6090 | * OFPGC15_REMOVE_BUCKET. Returns 0 on success or an OpenFlow error code | |
6c5b90ce | 6091 | * on failure. |
7395c052 | 6092 | * |
809c7548 RW |
6093 | * Note that the group is re-created and then replaces the old group in |
6094 | * ofproto's ofgroup hash map. Thus, the group is never altered while users of | |
6c5b90ce | 6095 | * the xlate module hold a pointer to the group. */ |
7395c052 NZ |
6096 | static enum ofperr |
6097 | modify_group(struct ofproto *ofproto, struct ofputil_group_mod *gm) | |
6098 | { | |
809c7548 | 6099 | struct ofgroup *ofgroup, *new_ofgroup, *retiring; |
7395c052 NZ |
6100 | enum ofperr error; |
6101 | ||
809c7548 RW |
6102 | error = init_group(ofproto, gm, &new_ofgroup); |
6103 | if (error) { | |
6104 | return error; | |
7395c052 NZ |
6105 | } |
6106 | ||
809c7548 | 6107 | retiring = new_ofgroup; |
7395c052 | 6108 | |
3fc3b679 AZ |
6109 | ovs_rwlock_wrlock(&ofproto->groups_rwlock); |
6110 | if (!ofproto_group_lookup__(ofproto, gm->group_id, &ofgroup)) { | |
7395c052 | 6111 | error = OFPERR_OFPGMFC_UNKNOWN_GROUP; |
809c7548 | 6112 | goto out; |
7395c052 | 6113 | } |
809c7548 RW |
6114 | |
6115 | /* Ofproto's group write lock is held now. */ | |
7395c052 NZ |
6116 | if (ofgroup->type != gm->type |
6117 | && ofproto->n_groups[gm->type] >= ofproto->ogf.max_groups[gm->type]) { | |
6118 | error = OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
809c7548 | 6119 | goto out; |
7395c052 NZ |
6120 | } |
6121 | ||
fce4730c SH |
6122 | /* Manipulate bucket list for bucket commands */ |
6123 | if (gm->command == OFPGC15_INSERT_BUCKET) { | |
6124 | error = copy_buckets_for_insert_bucket(ofgroup, new_ofgroup, | |
6125 | gm->command_bucket_id); | |
6126 | } else if (gm->command == OFPGC15_REMOVE_BUCKET) { | |
6127 | error = copy_buckets_for_remove_bucket(ofgroup, new_ofgroup, | |
6128 | gm->command_bucket_id); | |
6129 | } | |
6130 | if (error) { | |
6131 | goto out; | |
6132 | } | |
6133 | ||
809c7548 | 6134 | /* The group creation time does not change during modification. */ |
eaf004bd AZ |
6135 | *CONST_CAST(long long int *, &(new_ofgroup->created)) = ofgroup->created; |
6136 | *CONST_CAST(long long int *, &(new_ofgroup->modified)) = time_msec(); | |
7395c052 | 6137 | |
809c7548 RW |
6138 | error = ofproto->ofproto_class->group_modify(new_ofgroup); |
6139 | if (error) { | |
6140 | goto out; | |
6141 | } | |
7395c052 | 6142 | |
809c7548 RW |
6143 | retiring = ofgroup; |
6144 | /* Replace ofgroup in ofproto's groups hash map with new_ofgroup. */ | |
6145 | hmap_remove(&ofproto->groups, &ofgroup->hmap_node); | |
6146 | hmap_insert(&ofproto->groups, &new_ofgroup->hmap_node, | |
6147 | hash_int(new_ofgroup->group_id, 0)); | |
6148 | if (ofgroup->type != new_ofgroup->type) { | |
6149 | ofproto->n_groups[ofgroup->type]--; | |
6150 | ofproto->n_groups[new_ofgroup->type]++; | |
7395c052 NZ |
6151 | } |
6152 | ||
809c7548 RW |
6153 | out: |
6154 | ofproto_group_unref(retiring); | |
7395c052 | 6155 | ovs_rwlock_unlock(&ofproto->groups_rwlock); |
7395c052 NZ |
6156 | return error; |
6157 | } | |
6158 | ||
6159 | static void | |
6160 | delete_group__(struct ofproto *ofproto, struct ofgroup *ofgroup) | |
6161 | OVS_RELEASES(ofproto->groups_rwlock) | |
6162 | { | |
276f6518 SH |
6163 | struct match match; |
6164 | struct ofputil_flow_mod fm; | |
6165 | ||
6166 | /* Delete all flow entries containing this group in a group action */ | |
6167 | match_init_catchall(&match); | |
6168 | flow_mod_init(&fm, &match, 0, NULL, 0, OFPFC_DELETE); | |
cc40d06b | 6169 | fm.delete_reason = OFPRR_GROUP_DELETE; |
276f6518 | 6170 | fm.out_group = ofgroup->group_id; |
baae3d02 | 6171 | handle_flow_mod__(ofproto, &fm, NULL); |
276f6518 | 6172 | |
7395c052 NZ |
6173 | hmap_remove(&ofproto->groups, &ofgroup->hmap_node); |
6174 | /* No-one can find this group any more. */ | |
6175 | ofproto->n_groups[ofgroup->type]--; | |
6176 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
809c7548 | 6177 | ofproto_group_unref(ofgroup); |
7395c052 NZ |
6178 | } |
6179 | ||
6c5b90ce | 6180 | /* Implements OFPGC11_DELETE. */ |
7395c052 NZ |
6181 | static void |
6182 | delete_group(struct ofproto *ofproto, uint32_t group_id) | |
6183 | { | |
6184 | struct ofgroup *ofgroup; | |
6185 | ||
6186 | ovs_rwlock_wrlock(&ofproto->groups_rwlock); | |
6187 | if (group_id == OFPG_ALL) { | |
6188 | for (;;) { | |
6189 | struct hmap_node *node = hmap_first(&ofproto->groups); | |
6190 | if (!node) { | |
6191 | break; | |
6192 | } | |
6193 | ofgroup = CONTAINER_OF(node, struct ofgroup, hmap_node); | |
6194 | delete_group__(ofproto, ofgroup); | |
6195 | /* Lock for each node separately, so that we will not jam the | |
6196 | * other threads for too long time. */ | |
6197 | ovs_rwlock_wrlock(&ofproto->groups_rwlock); | |
6198 | } | |
6199 | } else { | |
6200 | HMAP_FOR_EACH_IN_BUCKET (ofgroup, hmap_node, | |
6201 | hash_int(group_id, 0), &ofproto->groups) { | |
6202 | if (ofgroup->group_id == group_id) { | |
6203 | delete_group__(ofproto, ofgroup); | |
6204 | return; | |
6205 | } | |
6206 | } | |
6207 | } | |
6208 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
6209 | } | |
6210 | ||
6211 | static enum ofperr | |
6212 | handle_group_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
6213 | { | |
6214 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
6215 | struct ofputil_group_mod gm; | |
6216 | enum ofperr error; | |
6217 | ||
6218 | error = reject_slave_controller(ofconn); | |
6219 | if (error) { | |
6220 | return error; | |
6221 | } | |
6222 | ||
6223 | error = ofputil_decode_group_mod(oh, &gm); | |
6224 | if (error) { | |
6225 | return error; | |
6226 | } | |
6227 | ||
6228 | switch (gm.command) { | |
6229 | case OFPGC11_ADD: | |
6230 | return add_group(ofproto, &gm); | |
6231 | ||
6232 | case OFPGC11_MODIFY: | |
6233 | return modify_group(ofproto, &gm); | |
6234 | ||
6235 | case OFPGC11_DELETE: | |
6236 | delete_group(ofproto, gm.group_id); | |
6237 | return 0; | |
6238 | ||
fce4730c SH |
6239 | case OFPGC15_INSERT_BUCKET: |
6240 | return modify_group(ofproto, &gm); | |
6241 | ||
6242 | case OFPGC15_REMOVE_BUCKET: | |
6243 | return modify_group(ofproto, &gm); | |
6244 | ||
7395c052 NZ |
6245 | default: |
6246 | if (gm.command > OFPGC11_DELETE) { | |
6247 | VLOG_WARN_RL(&rl, "%s: Invalid group_mod command type %d", | |
6248 | ofproto->name, gm.command); | |
6249 | } | |
6250 | return OFPERR_OFPGMFC_BAD_COMMAND; | |
6251 | } | |
6252 | } | |
6253 | ||
3c1bb396 BP |
6254 | enum ofputil_table_miss |
6255 | ofproto_table_get_miss_config(const struct ofproto *ofproto, uint8_t table_id) | |
6d328fa2 | 6256 | { |
3c1bb396 | 6257 | enum ofputil_table_miss value; |
afcea9ea JR |
6258 | |
6259 | atomic_read_relaxed(&ofproto->tables[table_id].miss_config, &value); | |
3c1bb396 | 6260 | return value; |
6d328fa2 SH |
6261 | } |
6262 | ||
67761761 SH |
6263 | static enum ofperr |
6264 | table_mod(struct ofproto *ofproto, const struct ofputil_table_mod *tm) | |
6265 | { | |
3c1bb396 | 6266 | if (!check_table_id(ofproto, tm->table_id)) { |
67761761 | 6267 | return OFPERR_OFPTMFC_BAD_TABLE; |
3c1bb396 BP |
6268 | } else if (tm->miss_config != OFPUTIL_TABLE_MISS_DEFAULT) { |
6269 | if (tm->table_id == OFPTT_ALL) { | |
6270 | int i; | |
6271 | for (i = 0; i < ofproto->n_tables; i++) { | |
afcea9ea JR |
6272 | atomic_store_relaxed(&ofproto->tables[i].miss_config, |
6273 | tm->miss_config); | |
3c1bb396 BP |
6274 | } |
6275 | } else { | |
afcea9ea JR |
6276 | atomic_store_relaxed(&ofproto->tables[tm->table_id].miss_config, |
6277 | tm->miss_config); | |
3c1bb396 | 6278 | } |
67761761 | 6279 | } |
67761761 SH |
6280 | return 0; |
6281 | } | |
6282 | ||
918f2b82 AZ |
6283 | static enum ofperr |
6284 | handle_table_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
6285 | { | |
67761761 | 6286 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
918f2b82 AZ |
6287 | struct ofputil_table_mod tm; |
6288 | enum ofperr error; | |
6289 | ||
6290 | error = reject_slave_controller(ofconn); | |
6291 | if (error) { | |
6292 | return error; | |
6293 | } | |
6294 | ||
6295 | error = ofputil_decode_table_mod(oh, &tm); | |
6296 | if (error) { | |
6297 | return error; | |
6298 | } | |
6299 | ||
67761761 | 6300 | return table_mod(ofproto, &tm); |
918f2b82 AZ |
6301 | } |
6302 | ||
777af88d AC |
6303 | static enum ofperr |
6304 | handle_bundle_control(struct ofconn *ofconn, const struct ofp_header *oh) | |
6305 | { | |
6306 | enum ofperr error; | |
6307 | struct ofputil_bundle_ctrl_msg bctrl; | |
6308 | struct ofpbuf *buf; | |
6309 | struct ofputil_bundle_ctrl_msg reply; | |
6310 | ||
ba9d374a JR |
6311 | error = reject_slave_controller(ofconn); |
6312 | if (error) { | |
6313 | return error; | |
6314 | } | |
6315 | ||
777af88d AC |
6316 | error = ofputil_decode_bundle_ctrl(oh, &bctrl); |
6317 | if (error) { | |
6318 | return error; | |
6319 | } | |
6320 | reply.flags = 0; | |
6321 | reply.bundle_id = bctrl.bundle_id; | |
6322 | ||
6323 | switch (bctrl.type) { | |
6324 | case OFPBCT_OPEN_REQUEST: | |
6325 | error = ofp_bundle_open(ofconn, bctrl.bundle_id, bctrl.flags); | |
6326 | reply.type = OFPBCT_OPEN_REPLY; | |
6327 | break; | |
6328 | case OFPBCT_CLOSE_REQUEST: | |
6329 | error = ofp_bundle_close(ofconn, bctrl.bundle_id, bctrl.flags); | |
6330 | reply.type = OFPBCT_CLOSE_REPLY;; | |
6331 | break; | |
6332 | case OFPBCT_COMMIT_REQUEST: | |
6333 | error = ofp_bundle_commit(ofconn, bctrl.bundle_id, bctrl.flags); | |
6334 | reply.type = OFPBCT_COMMIT_REPLY; | |
6335 | break; | |
6336 | case OFPBCT_DISCARD_REQUEST: | |
6337 | error = ofp_bundle_discard(ofconn, bctrl.bundle_id); | |
6338 | reply.type = OFPBCT_DISCARD_REPLY; | |
6339 | break; | |
6340 | ||
6341 | case OFPBCT_OPEN_REPLY: | |
6342 | case OFPBCT_CLOSE_REPLY: | |
6343 | case OFPBCT_COMMIT_REPLY: | |
6344 | case OFPBCT_DISCARD_REPLY: | |
6345 | return OFPERR_OFPBFC_BAD_TYPE; | |
6346 | break; | |
6347 | } | |
6348 | ||
6349 | if (!error) { | |
6350 | buf = ofputil_encode_bundle_ctrl_reply(oh, &reply); | |
6351 | ofconn_send_reply(ofconn, buf); | |
6352 | } | |
6353 | return error; | |
6354 | } | |
6355 | ||
6356 | ||
6357 | static enum ofperr | |
6358 | handle_bundle_add(struct ofconn *ofconn, const struct ofp_header *oh) | |
6359 | { | |
6360 | enum ofperr error; | |
6361 | struct ofputil_bundle_add_msg badd; | |
6362 | ||
ba9d374a JR |
6363 | error = reject_slave_controller(ofconn); |
6364 | if (error) { | |
6365 | return error; | |
6366 | } | |
6367 | ||
777af88d AC |
6368 | error = ofputil_decode_bundle_add(oh, &badd); |
6369 | if (error) { | |
6370 | return error; | |
6371 | } | |
6372 | ||
6373 | return ofp_bundle_add_message(ofconn, &badd); | |
6374 | } | |
6375 | ||
90bf1e07 | 6376 | static enum ofperr |
d1e2cf21 | 6377 | handle_openflow__(struct ofconn *ofconn, const struct ofpbuf *msg) |
15aaf599 | 6378 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 6379 | { |
6fd6ed71 | 6380 | const struct ofp_header *oh = msg->data; |
982697a4 | 6381 | enum ofptype type; |
90bf1e07 | 6382 | enum ofperr error; |
064af421 | 6383 | |
982697a4 | 6384 | error = ofptype_decode(&type, oh); |
d1e2cf21 BP |
6385 | if (error) { |
6386 | return error; | |
6387 | } | |
ff3c2c63 YT |
6388 | if (oh->version >= OFP13_VERSION && ofpmsg_is_stat_request(oh) |
6389 | && ofpmp_more(oh)) { | |
6390 | /* We have no buffer implementation for multipart requests. | |
6391 | * Report overflow for requests which consists of multiple | |
6392 | * messages. */ | |
6393 | return OFPERR_OFPBRC_MULTIPART_BUFFER_OVERFLOW; | |
6394 | } | |
064af421 | 6395 | |
982697a4 | 6396 | switch (type) { |
d1e2cf21 | 6397 | /* OpenFlow requests. */ |
982697a4 | 6398 | case OFPTYPE_ECHO_REQUEST: |
d1e2cf21 | 6399 | return handle_echo_request(ofconn, oh); |
064af421 | 6400 | |
982697a4 | 6401 | case OFPTYPE_FEATURES_REQUEST: |
d1e2cf21 | 6402 | return handle_features_request(ofconn, oh); |
064af421 | 6403 | |
982697a4 | 6404 | case OFPTYPE_GET_CONFIG_REQUEST: |
d1e2cf21 | 6405 | return handle_get_config_request(ofconn, oh); |
064af421 | 6406 | |
982697a4 BP |
6407 | case OFPTYPE_SET_CONFIG: |
6408 | return handle_set_config(ofconn, oh); | |
064af421 | 6409 | |
982697a4 BP |
6410 | case OFPTYPE_PACKET_OUT: |
6411 | return handle_packet_out(ofconn, oh); | |
064af421 | 6412 | |
982697a4 | 6413 | case OFPTYPE_PORT_MOD: |
d1e2cf21 | 6414 | return handle_port_mod(ofconn, oh); |
064af421 | 6415 | |
982697a4 | 6416 | case OFPTYPE_FLOW_MOD: |
2e4f5fcf | 6417 | return handle_flow_mod(ofconn, oh); |
064af421 | 6418 | |
7395c052 NZ |
6419 | case OFPTYPE_GROUP_MOD: |
6420 | return handle_group_mod(ofconn, oh); | |
6421 | ||
918f2b82 AZ |
6422 | case OFPTYPE_TABLE_MOD: |
6423 | return handle_table_mod(ofconn, oh); | |
6424 | ||
9cae45dc JR |
6425 | case OFPTYPE_METER_MOD: |
6426 | return handle_meter_mod(ofconn, oh); | |
6427 | ||
982697a4 | 6428 | case OFPTYPE_BARRIER_REQUEST: |
d1e2cf21 | 6429 | return handle_barrier_request(ofconn, oh); |
064af421 | 6430 | |
6ea4776b JR |
6431 | case OFPTYPE_ROLE_REQUEST: |
6432 | return handle_role_request(ofconn, oh); | |
6433 | ||
d1e2cf21 | 6434 | /* OpenFlow replies. */ |
982697a4 | 6435 | case OFPTYPE_ECHO_REPLY: |
d1e2cf21 | 6436 | return 0; |
246e61ea | 6437 | |
d1e2cf21 | 6438 | /* Nicira extension requests. */ |
982697a4 | 6439 | case OFPTYPE_FLOW_MOD_TABLE_ID: |
6c1491fb | 6440 | return handle_nxt_flow_mod_table_id(ofconn, oh); |
d1e2cf21 | 6441 | |
982697a4 | 6442 | case OFPTYPE_SET_FLOW_FORMAT: |
d1e2cf21 BP |
6443 | return handle_nxt_set_flow_format(ofconn, oh); |
6444 | ||
982697a4 | 6445 | case OFPTYPE_SET_PACKET_IN_FORMAT: |
54834960 EJ |
6446 | return handle_nxt_set_packet_in_format(ofconn, oh); |
6447 | ||
982697a4 | 6448 | case OFPTYPE_SET_CONTROLLER_ID: |
a7349929 BP |
6449 | return handle_nxt_set_controller_id(ofconn, oh); |
6450 | ||
982697a4 | 6451 | case OFPTYPE_FLOW_AGE: |
f27f2134 BP |
6452 | /* Nothing to do. */ |
6453 | return 0; | |
6454 | ||
982697a4 | 6455 | case OFPTYPE_FLOW_MONITOR_CANCEL: |
2b07c8b1 BP |
6456 | return handle_flow_monitor_cancel(ofconn, oh); |
6457 | ||
982697a4 | 6458 | case OFPTYPE_SET_ASYNC_CONFIG: |
80d5aefd BP |
6459 | return handle_nxt_set_async_config(ofconn, oh); |
6460 | ||
c423b3b3 AC |
6461 | case OFPTYPE_GET_ASYNC_REQUEST: |
6462 | return handle_nxt_get_async_request(ofconn, oh); | |
6463 | ||
349adfb2 | 6464 | /* Statistics requests. */ |
982697a4 BP |
6465 | case OFPTYPE_DESC_STATS_REQUEST: |
6466 | return handle_desc_stats_request(ofconn, oh); | |
6467 | ||
6468 | case OFPTYPE_FLOW_STATS_REQUEST: | |
6469 | return handle_flow_stats_request(ofconn, oh); | |
6470 | ||
6471 | case OFPTYPE_AGGREGATE_STATS_REQUEST: | |
6472 | return handle_aggregate_stats_request(ofconn, oh); | |
6473 | ||
6474 | case OFPTYPE_TABLE_STATS_REQUEST: | |
6475 | return handle_table_stats_request(ofconn, oh); | |
6476 | ||
3c4e10fb BP |
6477 | case OFPTYPE_TABLE_FEATURES_STATS_REQUEST: |
6478 | return handle_table_features_request(ofconn, oh); | |
6479 | ||
982697a4 BP |
6480 | case OFPTYPE_PORT_STATS_REQUEST: |
6481 | return handle_port_stats_request(ofconn, oh); | |
6482 | ||
6483 | case OFPTYPE_QUEUE_STATS_REQUEST: | |
6484 | return handle_queue_stats_request(ofconn, oh); | |
6485 | ||
6486 | case OFPTYPE_PORT_DESC_STATS_REQUEST: | |
6487 | return handle_port_desc_stats_request(ofconn, oh); | |
6488 | ||
6489 | case OFPTYPE_FLOW_MONITOR_STATS_REQUEST: | |
6490 | return handle_flow_monitor_request(ofconn, oh); | |
6491 | ||
261bd854 BP |
6492 | case OFPTYPE_METER_STATS_REQUEST: |
6493 | case OFPTYPE_METER_CONFIG_STATS_REQUEST: | |
9cae45dc JR |
6494 | return handle_meter_request(ofconn, oh, type); |
6495 | ||
261bd854 | 6496 | case OFPTYPE_METER_FEATURES_STATS_REQUEST: |
9cae45dc JR |
6497 | return handle_meter_features_request(ofconn, oh); |
6498 | ||
261bd854 | 6499 | case OFPTYPE_GROUP_STATS_REQUEST: |
7395c052 NZ |
6500 | return handle_group_stats_request(ofconn, oh); |
6501 | ||
261bd854 | 6502 | case OFPTYPE_GROUP_DESC_STATS_REQUEST: |
7395c052 NZ |
6503 | return handle_group_desc_stats_request(ofconn, oh); |
6504 | ||
261bd854 | 6505 | case OFPTYPE_GROUP_FEATURES_STATS_REQUEST: |
7395c052 NZ |
6506 | return handle_group_features_stats_request(ofconn, oh); |
6507 | ||
7395c052 | 6508 | case OFPTYPE_QUEUE_GET_CONFIG_REQUEST: |
e8f9a7bb | 6509 | return handle_queue_get_config_request(ofconn, oh); |
2e1ae200 | 6510 | |
777af88d AC |
6511 | case OFPTYPE_BUNDLE_CONTROL: |
6512 | return handle_bundle_control(ofconn, oh); | |
6513 | ||
6514 | case OFPTYPE_BUNDLE_ADD_MESSAGE: | |
6515 | return handle_bundle_add(ofconn, oh); | |
6516 | ||
982697a4 BP |
6517 | case OFPTYPE_HELLO: |
6518 | case OFPTYPE_ERROR: | |
6519 | case OFPTYPE_FEATURES_REPLY: | |
6520 | case OFPTYPE_GET_CONFIG_REPLY: | |
6521 | case OFPTYPE_PACKET_IN: | |
6522 | case OFPTYPE_FLOW_REMOVED: | |
6523 | case OFPTYPE_PORT_STATUS: | |
6524 | case OFPTYPE_BARRIER_REPLY: | |
c545d38d | 6525 | case OFPTYPE_QUEUE_GET_CONFIG_REPLY: |
982697a4 BP |
6526 | case OFPTYPE_DESC_STATS_REPLY: |
6527 | case OFPTYPE_FLOW_STATS_REPLY: | |
6528 | case OFPTYPE_QUEUE_STATS_REPLY: | |
6529 | case OFPTYPE_PORT_STATS_REPLY: | |
6530 | case OFPTYPE_TABLE_STATS_REPLY: | |
6531 | case OFPTYPE_AGGREGATE_STATS_REPLY: | |
6532 | case OFPTYPE_PORT_DESC_STATS_REPLY: | |
6533 | case OFPTYPE_ROLE_REPLY: | |
6534 | case OFPTYPE_FLOW_MONITOR_PAUSED: | |
6535 | case OFPTYPE_FLOW_MONITOR_RESUMED: | |
6536 | case OFPTYPE_FLOW_MONITOR_STATS_REPLY: | |
2e1ae200 | 6537 | case OFPTYPE_GET_ASYNC_REPLY: |
261bd854 BP |
6538 | case OFPTYPE_GROUP_STATS_REPLY: |
6539 | case OFPTYPE_GROUP_DESC_STATS_REPLY: | |
6540 | case OFPTYPE_GROUP_FEATURES_STATS_REPLY: | |
6541 | case OFPTYPE_METER_STATS_REPLY: | |
6542 | case OFPTYPE_METER_CONFIG_STATS_REPLY: | |
6543 | case OFPTYPE_METER_FEATURES_STATS_REPLY: | |
6544 | case OFPTYPE_TABLE_FEATURES_STATS_REPLY: | |
252f3411 | 6545 | case OFPTYPE_ROLE_STATUS: |
064af421 | 6546 | default: |
76ec08e0 YT |
6547 | if (ofpmsg_is_stat_request(oh)) { |
6548 | return OFPERR_OFPBRC_BAD_STAT; | |
6549 | } else { | |
6550 | return OFPERR_OFPBRC_BAD_TYPE; | |
6551 | } | |
064af421 | 6552 | } |
d1e2cf21 | 6553 | } |
064af421 | 6554 | |
b20f4073 | 6555 | static void |
e03248b7 | 6556 | handle_openflow(struct ofconn *ofconn, const struct ofpbuf *ofp_msg) |
15aaf599 | 6557 | OVS_EXCLUDED(ofproto_mutex) |
d1e2cf21 BP |
6558 | { |
6559 | int error = handle_openflow__(ofconn, ofp_msg); | |
b20f4073 | 6560 | if (error) { |
6fd6ed71 | 6561 | ofconn_send_error(ofconn, ofp_msg->data, error); |
064af421 | 6562 | } |
d1e2cf21 | 6563 | COVERAGE_INC(ofproto_recv_openflow); |
7ee20df1 BP |
6564 | } |
6565 | \f | |
6566 | /* Asynchronous operations. */ | |
6567 | ||
834fe5cb BP |
6568 | static enum ofperr |
6569 | send_buffered_packet(struct ofconn *ofconn, uint32_t buffer_id, | |
6570 | struct rule *rule) | |
15aaf599 | 6571 | OVS_REQUIRES(ofproto_mutex) |
7ee20df1 | 6572 | { |
834fe5cb BP |
6573 | enum ofperr error = 0; |
6574 | if (ofconn && buffer_id != UINT32_MAX) { | |
6575 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
cf62fa4c | 6576 | struct dp_packet *packet; |
834fe5cb | 6577 | ofp_port_t in_port; |
b277c7cc | 6578 | |
834fe5cb BP |
6579 | error = ofconn_pktbuf_retrieve(ofconn, buffer_id, &packet, &in_port); |
6580 | if (packet) { | |
6581 | struct rule_execute *re; | |
b277c7cc | 6582 | |
834fe5cb | 6583 | ofproto_rule_ref(rule); |
b277c7cc | 6584 | |
834fe5cb BP |
6585 | re = xmalloc(sizeof *re); |
6586 | re->rule = rule; | |
6587 | re->in_port = in_port; | |
6588 | re->packet = packet; | |
b277c7cc | 6589 | |
834fe5cb BP |
6590 | if (!guarded_list_push_back(&ofproto->rule_executes, |
6591 | &re->list_node, 1024)) { | |
a2143702 | 6592 | ofproto_rule_unref(rule); |
cf62fa4c | 6593 | dp_packet_delete(re->packet); |
834fe5cb | 6594 | free(re); |
e615b0a3 | 6595 | } |
af822017 | 6596 | } |
7ee20df1 | 6597 | } |
834fe5cb | 6598 | return error; |
7ee20df1 | 6599 | } |
064af421 | 6600 | \f |
064af421 | 6601 | static uint64_t |
fa60c019 | 6602 | pick_datapath_id(const struct ofproto *ofproto) |
064af421 | 6603 | { |
fa60c019 | 6604 | const struct ofport *port; |
064af421 | 6605 | |
abe529af | 6606 | port = ofproto_get_port(ofproto, OFPP_LOCAL); |
fa60c019 BP |
6607 | if (port) { |
6608 | uint8_t ea[ETH_ADDR_LEN]; | |
6609 | int error; | |
6610 | ||
6611 | error = netdev_get_etheraddr(port->netdev, ea); | |
064af421 BP |
6612 | if (!error) { |
6613 | return eth_addr_to_uint64(ea); | |
6614 | } | |
fbfa2911 BP |
6615 | VLOG_WARN("%s: could not get MAC address for %s (%s)", |
6616 | ofproto->name, netdev_get_name(port->netdev), | |
10a89ef0 | 6617 | ovs_strerror(error)); |
064af421 | 6618 | } |
fa60c019 | 6619 | return ofproto->fallback_dpid; |
064af421 BP |
6620 | } |
6621 | ||
6622 | static uint64_t | |
6623 | pick_fallback_dpid(void) | |
6624 | { | |
6625 | uint8_t ea[ETH_ADDR_LEN]; | |
70150daf | 6626 | eth_addr_nicira_random(ea); |
064af421 BP |
6627 | return eth_addr_to_uint64(ea); |
6628 | } | |
6629 | \f | |
254750ce BP |
6630 | /* Table overflow policy. */ |
6631 | ||
ad3efdcb EJ |
6632 | /* Chooses and updates 'rulep' with a rule to evict from 'table'. Sets 'rulep' |
6633 | * to NULL if the table is not configured to evict rules or if the table | |
6634 | * contains no evictable rules. (Rules with a readlock on their evict rwlock, | |
6635 | * or with no timeouts are not evictable.) */ | |
6636 | static bool | |
6637 | choose_rule_to_evict(struct oftable *table, struct rule **rulep) | |
15aaf599 | 6638 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
6639 | { |
6640 | struct eviction_group *evg; | |
6641 | ||
ad3efdcb | 6642 | *rulep = NULL; |
254750ce | 6643 | if (!table->eviction_fields) { |
ad3efdcb | 6644 | return false; |
254750ce BP |
6645 | } |
6646 | ||
6647 | /* In the common case, the outer and inner loops here will each be entered | |
6648 | * exactly once: | |
6649 | * | |
6650 | * - The inner loop normally "return"s in its first iteration. If the | |
6651 | * eviction group has any evictable rules, then it always returns in | |
6652 | * some iteration. | |
6653 | * | |
6654 | * - The outer loop only iterates more than once if the largest eviction | |
6655 | * group has no evictable rules. | |
6656 | * | |
6657 | * - The outer loop can exit only if table's 'max_flows' is all filled up | |
afe2143d | 6658 | * by unevictable rules. */ |
254750ce BP |
6659 | HEAP_FOR_EACH (evg, size_node, &table->eviction_groups_by_size) { |
6660 | struct rule *rule; | |
6661 | ||
6662 | HEAP_FOR_EACH (rule, evg_node, &evg->rules) { | |
15aaf599 BP |
6663 | *rulep = rule; |
6664 | return true; | |
254750ce BP |
6665 | } |
6666 | } | |
6667 | ||
ad3efdcb | 6668 | return false; |
254750ce | 6669 | } |
254750ce BP |
6670 | \f |
6671 | /* Eviction groups. */ | |
6672 | ||
6673 | /* Returns the priority to use for an eviction_group that contains 'n_rules' | |
6674 | * rules. The priority contains low-order random bits to ensure that eviction | |
6675 | * groups with the same number of rules are prioritized randomly. */ | |
6676 | static uint32_t | |
6677 | eviction_group_priority(size_t n_rules) | |
6678 | { | |
6679 | uint16_t size = MIN(UINT16_MAX, n_rules); | |
6680 | return (size << 16) | random_uint16(); | |
6681 | } | |
6682 | ||
6683 | /* Updates 'evg', an eviction_group within 'table', following a change that | |
6684 | * adds or removes rules in 'evg'. */ | |
6685 | static void | |
6686 | eviction_group_resized(struct oftable *table, struct eviction_group *evg) | |
15aaf599 | 6687 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
6688 | { |
6689 | heap_change(&table->eviction_groups_by_size, &evg->size_node, | |
6690 | eviction_group_priority(heap_count(&evg->rules))); | |
6691 | } | |
6692 | ||
6693 | /* Destroys 'evg', an eviction_group within 'table': | |
6694 | * | |
6695 | * - Removes all the rules, if any, from 'evg'. (It doesn't destroy the | |
6696 | * rules themselves, just removes them from the eviction group.) | |
6697 | * | |
6698 | * - Removes 'evg' from 'table'. | |
6699 | * | |
6700 | * - Frees 'evg'. */ | |
6701 | static void | |
6702 | eviction_group_destroy(struct oftable *table, struct eviction_group *evg) | |
15aaf599 | 6703 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
6704 | { |
6705 | while (!heap_is_empty(&evg->rules)) { | |
6706 | struct rule *rule; | |
6707 | ||
6708 | rule = CONTAINER_OF(heap_pop(&evg->rules), struct rule, evg_node); | |
6709 | rule->eviction_group = NULL; | |
6710 | } | |
6711 | hmap_remove(&table->eviction_groups_by_id, &evg->id_node); | |
6712 | heap_remove(&table->eviction_groups_by_size, &evg->size_node); | |
6713 | heap_destroy(&evg->rules); | |
6714 | free(evg); | |
6715 | } | |
6716 | ||
6717 | /* Removes 'rule' from its eviction group, if any. */ | |
6718 | static void | |
6719 | eviction_group_remove_rule(struct rule *rule) | |
15aaf599 | 6720 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
6721 | { |
6722 | if (rule->eviction_group) { | |
6723 | struct oftable *table = &rule->ofproto->tables[rule->table_id]; | |
6724 | struct eviction_group *evg = rule->eviction_group; | |
6725 | ||
6726 | rule->eviction_group = NULL; | |
6727 | heap_remove(&evg->rules, &rule->evg_node); | |
6728 | if (heap_is_empty(&evg->rules)) { | |
6729 | eviction_group_destroy(table, evg); | |
6730 | } else { | |
6731 | eviction_group_resized(table, evg); | |
6732 | } | |
6733 | } | |
6734 | } | |
6735 | ||
6736 | /* Hashes the 'rule''s values for the eviction_fields of 'rule''s table, and | |
6737 | * returns the hash value. */ | |
6738 | static uint32_t | |
6739 | eviction_group_hash_rule(struct rule *rule) | |
15aaf599 | 6740 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
6741 | { |
6742 | struct oftable *table = &rule->ofproto->tables[rule->table_id]; | |
6743 | const struct mf_subfield *sf; | |
5cb7a798 | 6744 | struct flow flow; |
254750ce BP |
6745 | uint32_t hash; |
6746 | ||
6747 | hash = table->eviction_group_id_basis; | |
5cb7a798 | 6748 | miniflow_expand(&rule->cr.match.flow, &flow); |
254750ce BP |
6749 | for (sf = table->eviction_fields; |
6750 | sf < &table->eviction_fields[table->n_eviction_fields]; | |
6751 | sf++) | |
6752 | { | |
5cb7a798 | 6753 | if (mf_are_prereqs_ok(sf->field, &flow)) { |
254750ce BP |
6754 | union mf_value value; |
6755 | ||
5cb7a798 | 6756 | mf_get_value(sf->field, &flow, &value); |
254750ce BP |
6757 | if (sf->ofs) { |
6758 | bitwise_zero(&value, sf->field->n_bytes, 0, sf->ofs); | |
6759 | } | |
6760 | if (sf->ofs + sf->n_bits < sf->field->n_bytes * 8) { | |
6761 | unsigned int start = sf->ofs + sf->n_bits; | |
6762 | bitwise_zero(&value, sf->field->n_bytes, start, | |
6763 | sf->field->n_bytes * 8 - start); | |
6764 | } | |
6765 | hash = hash_bytes(&value, sf->field->n_bytes, hash); | |
6766 | } else { | |
6767 | hash = hash_int(hash, 0); | |
6768 | } | |
6769 | } | |
6770 | ||
6771 | return hash; | |
6772 | } | |
6773 | ||
6774 | /* Returns an eviction group within 'table' with the given 'id', creating one | |
6775 | * if necessary. */ | |
6776 | static struct eviction_group * | |
6777 | eviction_group_find(struct oftable *table, uint32_t id) | |
15aaf599 | 6778 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
6779 | { |
6780 | struct eviction_group *evg; | |
6781 | ||
6782 | HMAP_FOR_EACH_WITH_HASH (evg, id_node, id, &table->eviction_groups_by_id) { | |
6783 | return evg; | |
6784 | } | |
6785 | ||
6786 | evg = xmalloc(sizeof *evg); | |
6787 | hmap_insert(&table->eviction_groups_by_id, &evg->id_node, id); | |
6788 | heap_insert(&table->eviction_groups_by_size, &evg->size_node, | |
6789 | eviction_group_priority(0)); | |
6790 | heap_init(&evg->rules); | |
6791 | ||
6792 | return evg; | |
6793 | } | |
6794 | ||
6795 | /* Returns an eviction priority for 'rule'. The return value should be | |
6796 | * interpreted so that higher priorities make a rule more attractive candidates | |
dc437090 JR |
6797 | * for eviction. |
6798 | * Called only if have a timeout. */ | |
254750ce | 6799 | static uint32_t |
dc437090 | 6800 | rule_eviction_priority(struct ofproto *ofproto, struct rule *rule) |
15aaf599 | 6801 | OVS_REQUIRES(ofproto_mutex) |
254750ce | 6802 | { |
dc437090 JR |
6803 | long long int expiration = LLONG_MAX; |
6804 | long long int modified; | |
254750ce BP |
6805 | uint32_t expiration_offset; |
6806 | ||
dc437090 | 6807 | /* 'modified' needs protection even when we hold 'ofproto_mutex'. */ |
d10976b7 | 6808 | ovs_mutex_lock(&rule->mutex); |
dc437090 | 6809 | modified = rule->modified; |
d10976b7 | 6810 | ovs_mutex_unlock(&rule->mutex); |
dc437090 JR |
6811 | |
6812 | if (rule->hard_timeout) { | |
6813 | expiration = modified + rule->hard_timeout * 1000; | |
6814 | } | |
6815 | if (rule->idle_timeout) { | |
6816 | uint64_t packets, bytes; | |
6817 | long long int used; | |
6818 | long long int idle_expiration; | |
6819 | ||
6820 | ofproto->ofproto_class->rule_get_stats(rule, &packets, &bytes, &used); | |
6821 | idle_expiration = used + rule->idle_timeout * 1000; | |
6822 | expiration = MIN(expiration, idle_expiration); | |
6823 | } | |
6824 | ||
254750ce BP |
6825 | if (expiration == LLONG_MAX) { |
6826 | return 0; | |
6827 | } | |
6828 | ||
6829 | /* Calculate the time of expiration as a number of (approximate) seconds | |
6830 | * after program startup. | |
6831 | * | |
6832 | * This should work OK for program runs that last UINT32_MAX seconds or | |
6833 | * less. Therefore, please restart OVS at least once every 136 years. */ | |
6834 | expiration_offset = (expiration >> 10) - (time_boot_msec() >> 10); | |
6835 | ||
6836 | /* Invert the expiration offset because we're using a max-heap. */ | |
6837 | return UINT32_MAX - expiration_offset; | |
6838 | } | |
6839 | ||
6840 | /* Adds 'rule' to an appropriate eviction group for its oftable's | |
6841 | * configuration. Does nothing if 'rule''s oftable doesn't have eviction | |
6842 | * enabled, or if 'rule' is a permanent rule (one that will never expire on its | |
6843 | * own). | |
6844 | * | |
6845 | * The caller must ensure that 'rule' is not already in an eviction group. */ | |
6846 | static void | |
6847 | eviction_group_add_rule(struct rule *rule) | |
15aaf599 | 6848 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
6849 | { |
6850 | struct ofproto *ofproto = rule->ofproto; | |
6851 | struct oftable *table = &ofproto->tables[rule->table_id]; | |
a3779dbc | 6852 | bool has_timeout; |
254750ce | 6853 | |
dc437090 JR |
6854 | /* Timeouts may be modified only when holding 'ofproto_mutex'. We have it |
6855 | * so no additional protection is needed. */ | |
a3779dbc | 6856 | has_timeout = rule->hard_timeout || rule->idle_timeout; |
a3779dbc EJ |
6857 | |
6858 | if (table->eviction_fields && has_timeout) { | |
254750ce BP |
6859 | struct eviction_group *evg; |
6860 | ||
6861 | evg = eviction_group_find(table, eviction_group_hash_rule(rule)); | |
6862 | ||
6863 | rule->eviction_group = evg; | |
6864 | heap_insert(&evg->rules, &rule->evg_node, | |
dc437090 | 6865 | rule_eviction_priority(ofproto, rule)); |
254750ce BP |
6866 | eviction_group_resized(table, evg); |
6867 | } | |
6868 | } | |
6869 | \f | |
d0918789 BP |
6870 | /* oftables. */ |
6871 | ||
6872 | /* Initializes 'table'. */ | |
6873 | static void | |
6874 | oftable_init(struct oftable *table) | |
6875 | { | |
5c67e4af | 6876 | memset(table, 0, sizeof *table); |
d70e8c28 | 6877 | classifier_init(&table->cls, flow_segment_u64s); |
ec1c5c7e | 6878 | table->max_flows = UINT_MAX; |
3c1bb396 | 6879 | atomic_init(&table->miss_config, OFPUTIL_TABLE_MISS_DEFAULT); |
f017d986 | 6880 | |
f017d986 JR |
6881 | classifier_set_prefix_fields(&table->cls, default_prefix_fields, |
6882 | ARRAY_SIZE(default_prefix_fields)); | |
d611866c SH |
6883 | |
6884 | atomic_init(&table->n_matched, 0); | |
6885 | atomic_init(&table->n_missed, 0); | |
d0918789 BP |
6886 | } |
6887 | ||
254750ce | 6888 | /* Destroys 'table', including its classifier and eviction groups. |
d0918789 BP |
6889 | * |
6890 | * The caller is responsible for freeing 'table' itself. */ | |
6891 | static void | |
6892 | oftable_destroy(struct oftable *table) | |
6893 | { | |
cb22974d | 6894 | ovs_assert(classifier_is_empty(&table->cls)); |
254750ce | 6895 | oftable_disable_eviction(table); |
d0918789 | 6896 | classifier_destroy(&table->cls); |
254750ce BP |
6897 | free(table->name); |
6898 | } | |
6899 | ||
6900 | /* Changes the name of 'table' to 'name'. If 'name' is NULL or the empty | |
6901 | * string, then 'table' will use its default name. | |
6902 | * | |
6903 | * This only affects the name exposed for a table exposed through the OpenFlow | |
6904 | * OFPST_TABLE (as printed by "ovs-ofctl dump-tables"). */ | |
6905 | static void | |
6906 | oftable_set_name(struct oftable *table, const char *name) | |
6907 | { | |
6908 | if (name && name[0]) { | |
6909 | int len = strnlen(name, OFP_MAX_TABLE_NAME_LEN); | |
6910 | if (!table->name || strncmp(name, table->name, len)) { | |
6911 | free(table->name); | |
6912 | table->name = xmemdup0(name, len); | |
6913 | } | |
6914 | } else { | |
6915 | free(table->name); | |
6916 | table->name = NULL; | |
6917 | } | |
6918 | } | |
6919 | ||
6920 | /* oftables support a choice of two policies when adding a rule would cause the | |
6921 | * number of flows in the table to exceed the configured maximum number: either | |
6922 | * they can refuse to add the new flow or they can evict some existing flow. | |
6923 | * This function configures the former policy on 'table'. */ | |
6924 | static void | |
6925 | oftable_disable_eviction(struct oftable *table) | |
15aaf599 | 6926 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
6927 | { |
6928 | if (table->eviction_fields) { | |
6929 | struct eviction_group *evg, *next; | |
6930 | ||
6931 | HMAP_FOR_EACH_SAFE (evg, next, id_node, | |
6932 | &table->eviction_groups_by_id) { | |
6933 | eviction_group_destroy(table, evg); | |
6934 | } | |
6935 | hmap_destroy(&table->eviction_groups_by_id); | |
6936 | heap_destroy(&table->eviction_groups_by_size); | |
6937 | ||
6938 | free(table->eviction_fields); | |
6939 | table->eviction_fields = NULL; | |
6940 | table->n_eviction_fields = 0; | |
6941 | } | |
6942 | } | |
6943 | ||
6944 | /* oftables support a choice of two policies when adding a rule would cause the | |
6945 | * number of flows in the table to exceed the configured maximum number: either | |
6946 | * they can refuse to add the new flow or they can evict some existing flow. | |
6947 | * This function configures the latter policy on 'table', with fairness based | |
6948 | * on the values of the 'n_fields' fields specified in 'fields'. (Specifying | |
6949 | * 'n_fields' as 0 disables fairness.) */ | |
6950 | static void | |
6951 | oftable_enable_eviction(struct oftable *table, | |
6952 | const struct mf_subfield *fields, size_t n_fields) | |
15aaf599 | 6953 | OVS_REQUIRES(ofproto_mutex) |
254750ce | 6954 | { |
254750ce BP |
6955 | struct rule *rule; |
6956 | ||
6957 | if (table->eviction_fields | |
6958 | && n_fields == table->n_eviction_fields | |
6959 | && (!n_fields | |
6960 | || !memcmp(fields, table->eviction_fields, | |
6961 | n_fields * sizeof *fields))) { | |
6962 | /* No change. */ | |
6963 | return; | |
6964 | } | |
6965 | ||
6966 | oftable_disable_eviction(table); | |
6967 | ||
6968 | table->n_eviction_fields = n_fields; | |
6969 | table->eviction_fields = xmemdup(fields, n_fields * sizeof *fields); | |
6970 | ||
6971 | table->eviction_group_id_basis = random_uint32(); | |
6972 | hmap_init(&table->eviction_groups_by_id); | |
6973 | heap_init(&table->eviction_groups_by_size); | |
6974 | ||
5f0476ce | 6975 | CLS_FOR_EACH (rule, cr, &table->cls) { |
254750ce BP |
6976 | eviction_group_add_rule(rule); |
6977 | } | |
d0918789 BP |
6978 | } |
6979 | ||
802f84ff JR |
6980 | /* Removes 'rule' from the ofproto data structures AFTER caller has removed |
6981 | * it from the classifier. */ | |
d0918789 | 6982 | static void |
802f84ff | 6983 | ofproto_rule_remove__(struct ofproto *ofproto, struct rule *rule) |
15aaf599 | 6984 | OVS_REQUIRES(ofproto_mutex) |
d0918789 | 6985 | { |
98eaac36 | 6986 | cookies_remove(ofproto, rule); |
2c916028 | 6987 | |
254750ce | 6988 | eviction_group_remove_rule(rule); |
e503cc19 SH |
6989 | if (!list_is_empty(&rule->expirable)) { |
6990 | list_remove(&rule->expirable); | |
6991 | } | |
9cae45dc JR |
6992 | if (!list_is_empty(&rule->meter_list_node)) { |
6993 | list_remove(&rule->meter_list_node); | |
51b50dfd | 6994 | list_init(&rule->meter_list_node); |
9cae45dc | 6995 | } |
d0918789 BP |
6996 | } |
6997 | ||
0b4f2078 EJ |
6998 | static void |
6999 | oftable_remove_rule(struct rule *rule) | |
15aaf599 | 7000 | OVS_REQUIRES(ofproto_mutex) |
0b4f2078 | 7001 | { |
802f84ff JR |
7002 | struct classifier *cls = &rule->ofproto->tables[rule->table_id].cls; |
7003 | ||
7004 | if (classifier_remove(cls, &rule->cr)) { | |
7005 | ofproto_rule_remove__(rule->ofproto, rule); | |
7006 | } | |
0b4f2078 | 7007 | } |
d0918789 | 7008 | \f |
abe529af | 7009 | /* unixctl commands. */ |
7aa697dd | 7010 | |
abe529af | 7011 | struct ofproto * |
2ac6bedd | 7012 | ofproto_lookup(const char *name) |
7aa697dd | 7013 | { |
2ac6bedd | 7014 | struct ofproto *ofproto; |
7aa697dd | 7015 | |
2ac6bedd BP |
7016 | HMAP_FOR_EACH_WITH_HASH (ofproto, hmap_node, hash_string(name, 0), |
7017 | &all_ofprotos) { | |
7018 | if (!strcmp(ofproto->name, name)) { | |
7019 | return ofproto; | |
7020 | } | |
7aa697dd | 7021 | } |
2ac6bedd | 7022 | return NULL; |
7aa697dd BP |
7023 | } |
7024 | ||
7025 | static void | |
0e15264f BP |
7026 | ofproto_unixctl_list(struct unixctl_conn *conn, int argc OVS_UNUSED, |
7027 | const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED) | |
7aa697dd | 7028 | { |
7aa697dd | 7029 | struct ofproto *ofproto; |
7aa697dd | 7030 | struct ds results; |
7aa697dd | 7031 | |
7aa697dd | 7032 | ds_init(&results); |
2ac6bedd BP |
7033 | HMAP_FOR_EACH (ofproto, hmap_node, &all_ofprotos) { |
7034 | ds_put_format(&results, "%s\n", ofproto->name); | |
7aa697dd | 7035 | } |
bde9f75d | 7036 | unixctl_command_reply(conn, ds_cstr(&results)); |
7aa697dd | 7037 | ds_destroy(&results); |
7aa697dd BP |
7038 | } |
7039 | ||
7040 | static void | |
7041 | ofproto_unixctl_init(void) | |
7042 | { | |
7043 | static bool registered; | |
7044 | if (registered) { | |
7045 | return; | |
7046 | } | |
7047 | registered = true; | |
7048 | ||
0e15264f BP |
7049 | unixctl_command_register("ofproto/list", "", 0, 0, |
7050 | ofproto_unixctl_list, NULL); | |
064af421 | 7051 | } |
52a90c29 BP |
7052 | \f |
7053 | /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.) | |
7054 | * | |
7055 | * This is deprecated. It is only for compatibility with broken device drivers | |
7056 | * in old versions of Linux that do not properly support VLANs when VLAN | |
7057 | * devices are not used. When broken device drivers are no longer in | |
7058 | * widespread use, we will delete these interfaces. */ | |
7059 | ||
7060 | /* Sets a 1-bit in the 4096-bit 'vlan_bitmap' for each VLAN ID that is matched | |
7061 | * (exactly) by an OpenFlow rule in 'ofproto'. */ | |
7062 | void | |
7063 | ofproto_get_vlan_usage(struct ofproto *ofproto, unsigned long int *vlan_bitmap) | |
7064 | { | |
ac4aa4c8 JR |
7065 | struct match match; |
7066 | struct cls_rule target; | |
d0918789 | 7067 | const struct oftable *oftable; |
52a90c29 | 7068 | |
ac4aa4c8 JR |
7069 | match_init_catchall(&match); |
7070 | match_set_vlan_vid_masked(&match, htons(VLAN_CFI), htons(VLAN_CFI)); | |
7071 | cls_rule_init(&target, &match, 0); | |
7072 | ||
52a90c29 BP |
7073 | free(ofproto->vlan_bitmap); |
7074 | ofproto->vlan_bitmap = bitmap_allocate(4096); | |
7075 | ofproto->vlans_changed = false; | |
7076 | ||
d0918789 | 7077 | OFPROTO_FOR_EACH_TABLE (oftable, ofproto) { |
ac4aa4c8 | 7078 | struct rule *rule; |
52a90c29 | 7079 | |
5f0476ce | 7080 | CLS_FOR_EACH_TARGET (rule, cr, &oftable->cls, &target) { |
ac4aa4c8 JR |
7081 | if (minimask_get_vid_mask(&rule->cr.match.mask) == VLAN_VID_MASK) { |
7082 | uint16_t vid = miniflow_get_vid(&rule->cr.match.flow); | |
7083 | ||
7084 | bitmap_set1(vlan_bitmap, vid); | |
7085 | bitmap_set1(ofproto->vlan_bitmap, vid); | |
52a90c29 BP |
7086 | } |
7087 | } | |
7088 | } | |
059ef3c6 EJ |
7089 | |
7090 | cls_rule_destroy(&target); | |
52a90c29 BP |
7091 | } |
7092 | ||
7093 | /* Returns true if new VLANs have come into use by the flow table since the | |
7094 | * last call to ofproto_get_vlan_usage(). | |
7095 | * | |
7096 | * We don't track when old VLANs stop being used. */ | |
7097 | bool | |
7098 | ofproto_has_vlan_usage_changed(const struct ofproto *ofproto) | |
7099 | { | |
7100 | return ofproto->vlans_changed; | |
7101 | } | |
7102 | ||
7103 | /* Configures a VLAN splinter binding between the ports identified by OpenFlow | |
7104 | * port numbers 'vlandev_ofp_port' and 'realdev_ofp_port'. If | |
7105 | * 'realdev_ofp_port' is nonzero, then the VLAN device is enslaved to the real | |
7106 | * device as a VLAN splinter for VLAN ID 'vid'. If 'realdev_ofp_port' is zero, | |
7107 | * then the VLAN device is un-enslaved. */ | |
7108 | int | |
4e022ec0 AW |
7109 | ofproto_port_set_realdev(struct ofproto *ofproto, ofp_port_t vlandev_ofp_port, |
7110 | ofp_port_t realdev_ofp_port, int vid) | |
52a90c29 BP |
7111 | { |
7112 | struct ofport *ofport; | |
7113 | int error; | |
7114 | ||
cb22974d | 7115 | ovs_assert(vlandev_ofp_port != realdev_ofp_port); |
52a90c29 BP |
7116 | |
7117 | ofport = ofproto_get_port(ofproto, vlandev_ofp_port); | |
7118 | if (!ofport) { | |
7119 | VLOG_WARN("%s: cannot set realdev on nonexistent port %"PRIu16, | |
7120 | ofproto->name, vlandev_ofp_port); | |
7121 | return EINVAL; | |
7122 | } | |
7123 | ||
7124 | if (!ofproto->ofproto_class->set_realdev) { | |
7125 | if (!vlandev_ofp_port) { | |
7126 | return 0; | |
7127 | } | |
7128 | VLOG_WARN("%s: vlan splinters not supported", ofproto->name); | |
7129 | return EOPNOTSUPP; | |
7130 | } | |
7131 | ||
7132 | error = ofproto->ofproto_class->set_realdev(ofport, realdev_ofp_port, vid); | |
7133 | if (error) { | |
7134 | VLOG_WARN("%s: setting realdev on port %"PRIu16" (%s) failed (%s)", | |
7135 | ofproto->name, vlandev_ofp_port, | |
10a89ef0 | 7136 | netdev_get_name(ofport->netdev), ovs_strerror(error)); |
52a90c29 BP |
7137 | } |
7138 | return error; | |
7139 | } |