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064af421 | 1 | /* |
c5f81b20 | 2 | * Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014 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" |
064af421 BP |
47 | #include "packets.h" |
48 | #include "pinsched.h" | |
49 | #include "pktbuf.h" | |
50 | #include "poll-loop.h" | |
254750ce | 51 | #include "random.h" |
da4a6191 | 52 | #include "seq.h" |
064af421 | 53 | #include "shash.h" |
0d085684 | 54 | #include "simap.h" |
e8f9a7bb | 55 | #include "smap.h" |
b3c01ed3 | 56 | #include "sset.h" |
064af421 | 57 | #include "timeval.h" |
c4617b3c | 58 | #include "unaligned.h" |
4f2cad2c | 59 | #include "unixctl.h" |
5136ce49 | 60 | #include "vlog.h" |
777af88d | 61 | #include "bundles.h" |
064af421 | 62 | |
d98e6007 | 63 | VLOG_DEFINE_THIS_MODULE(ofproto); |
064af421 | 64 | |
d76f09ea | 65 | COVERAGE_DEFINE(ofproto_flush); |
d76f09ea BP |
66 | COVERAGE_DEFINE(ofproto_packet_out); |
67 | COVERAGE_DEFINE(ofproto_queue_req); | |
68 | COVERAGE_DEFINE(ofproto_recv_openflow); | |
69 | COVERAGE_DEFINE(ofproto_reinit_ports); | |
d76f09ea BP |
70 | COVERAGE_DEFINE(ofproto_update_port); |
71 | ||
7ee20df1 BP |
72 | enum ofproto_state { |
73 | S_OPENFLOW, /* Processing OpenFlow commands. */ | |
254750ce | 74 | S_EVICT, /* Evicting flows from over-limit tables. */ |
7ee20df1 BP |
75 | S_FLUSH, /* Deleting all flow table rules. */ |
76 | }; | |
77 | ||
78 | enum ofoperation_type { | |
79 | OFOPERATION_ADD, | |
80 | OFOPERATION_DELETE, | |
b277c7cc BP |
81 | OFOPERATION_MODIFY, |
82 | OFOPERATION_REPLACE | |
7ee20df1 BP |
83 | }; |
84 | ||
85 | /* A single OpenFlow request can execute any number of operations. The | |
86 | * ofopgroup maintain OpenFlow state common to all of the operations, e.g. the | |
87 | * ofconn to which an error reply should be sent if necessary. | |
88 | * | |
89 | * ofproto initiates some operations internally. These operations are still | |
90 | * assigned to groups but will not have an associated ofconn. */ | |
91 | struct ofopgroup { | |
92 | struct ofproto *ofproto; /* Owning ofproto. */ | |
93 | struct list ofproto_node; /* In ofproto's "pending" list. */ | |
94 | struct list ops; /* List of "struct ofoperation"s. */ | |
e615b0a3 | 95 | int n_running; /* Number of ops still pending. */ |
7ee20df1 BP |
96 | |
97 | /* Data needed to send OpenFlow reply on failure or to send a buffered | |
98 | * packet on success. | |
99 | * | |
100 | * If list_is_empty(ofconn_node) then this ofopgroup never had an | |
101 | * associated ofconn or its ofconn's connection dropped after it initiated | |
102 | * the operation. In the latter case 'ofconn' is a wild pointer that | |
103 | * refers to freed memory, so the 'ofconn' member must be used only if | |
104 | * !list_is_empty(ofconn_node). | |
105 | */ | |
106 | struct list ofconn_node; /* In ofconn's list of pending opgroups. */ | |
107 | struct ofconn *ofconn; /* ofconn for reply (but see note above). */ | |
108 | struct ofp_header *request; /* Original request (truncated at 64 bytes). */ | |
109 | uint32_t buffer_id; /* Buffer id from original request. */ | |
7ee20df1 BP |
110 | }; |
111 | ||
7024dffe BP |
112 | static struct ofopgroup *ofopgroup_create_unattached(struct ofproto *); |
113 | static struct ofopgroup *ofopgroup_create(struct ofproto *, struct ofconn *, | |
114 | const struct ofp_header *, | |
115 | uint32_t buffer_id); | |
7ee20df1 | 116 | static void ofopgroup_submit(struct ofopgroup *); |
e615b0a3 | 117 | static void ofopgroup_complete(struct ofopgroup *); |
7ee20df1 BP |
118 | |
119 | /* A single flow table operation. */ | |
120 | struct ofoperation { | |
121 | struct ofopgroup *group; /* Owning group. */ | |
122 | struct list group_node; /* In ofopgroup's "ops" list. */ | |
123 | struct hmap_node hmap_node; /* In ofproto's "deletions" hmap. */ | |
124 | struct rule *rule; /* Rule being operated upon. */ | |
125 | enum ofoperation_type type; /* Type of operation. */ | |
08043761 | 126 | |
b277c7cc BP |
127 | /* OFOPERATION_MODIFY, OFOPERATION_REPLACE: The old actions, if the actions |
128 | * are changing. */ | |
dc723c44 | 129 | const struct rule_actions *actions; |
08043761 | 130 | |
2b07c8b1 BP |
131 | /* OFOPERATION_DELETE. */ |
132 | enum ofp_flow_removed_reason reason; /* Reason flow was removed. */ | |
133 | ||
3f517bcd DB |
134 | ovs_be64 flow_cookie; /* Rule's old flow cookie. */ |
135 | uint16_t idle_timeout; /* Rule's old idle timeout. */ | |
136 | uint16_t hard_timeout; /* Rule's old hard timeout. */ | |
137 | enum ofputil_flow_mod_flags flags; /* Rule's old flags. */ | |
138 | enum ofperr error; /* 0 if no error. */ | |
7ee20df1 BP |
139 | }; |
140 | ||
a7d94793 BP |
141 | static struct ofoperation *ofoperation_create(struct ofopgroup *, |
142 | struct rule *, | |
2b07c8b1 BP |
143 | enum ofoperation_type, |
144 | enum ofp_flow_removed_reason); | |
7ee20df1 BP |
145 | static void ofoperation_destroy(struct ofoperation *); |
146 | ||
d0918789 BP |
147 | /* oftable. */ |
148 | static void oftable_init(struct oftable *); | |
149 | static void oftable_destroy(struct oftable *); | |
878ae780 | 150 | |
254750ce BP |
151 | static void oftable_set_name(struct oftable *, const char *name); |
152 | ||
153 | static void oftable_disable_eviction(struct oftable *); | |
154 | static void oftable_enable_eviction(struct oftable *, | |
155 | const struct mf_subfield *fields, | |
156 | size_t n_fields); | |
157 | ||
15aaf599 | 158 | static void oftable_remove_rule(struct rule *rule) OVS_REQUIRES(ofproto_mutex); |
8b81d1ef | 159 | static void oftable_remove_rule__(struct ofproto *, struct rule *) |
15aaf599 | 160 | OVS_REQUIRES(ofproto_mutex); |
b277c7cc | 161 | static void oftable_insert_rule(struct rule *); |
064af421 | 162 | |
254750ce BP |
163 | /* A set of rules within a single OpenFlow table (oftable) that have the same |
164 | * values for the oftable's eviction_fields. A rule to be evicted, when one is | |
165 | * needed, is taken from the eviction group that contains the greatest number | |
166 | * of rules. | |
167 | * | |
168 | * An oftable owns any number of eviction groups, each of which contains any | |
169 | * number of rules. | |
170 | * | |
171 | * Membership in an eviction group is imprecise, based on the hash of the | |
172 | * oftable's eviction_fields (in the eviction_group's id_node.hash member). | |
173 | * That is, if two rules have different eviction_fields, but those | |
174 | * eviction_fields hash to the same value, then they will belong to the same | |
175 | * eviction_group anyway. | |
176 | * | |
177 | * (When eviction is not enabled on an oftable, we don't track any eviction | |
178 | * groups, to save time and space.) */ | |
179 | struct eviction_group { | |
180 | struct hmap_node id_node; /* In oftable's "eviction_groups_by_id". */ | |
181 | struct heap_node size_node; /* In oftable's "eviction_groups_by_size". */ | |
182 | struct heap rules; /* Contains "struct rule"s. */ | |
183 | }; | |
184 | ||
15aaf599 BP |
185 | static bool choose_rule_to_evict(struct oftable *table, struct rule **rulep); |
186 | static void ofproto_evict(struct ofproto *) OVS_EXCLUDED(ofproto_mutex); | |
dc437090 | 187 | static uint32_t rule_eviction_priority(struct ofproto *ofproto, struct rule *); |
b277c7cc BP |
188 | static void eviction_group_add_rule(struct rule *); |
189 | static void eviction_group_remove_rule(struct rule *); | |
f29152ca | 190 | |
a9b22b7f BP |
191 | /* Criteria that flow_mod and other operations use for selecting rules on |
192 | * which to operate. */ | |
193 | struct rule_criteria { | |
194 | /* An OpenFlow table or 255 for all tables. */ | |
195 | uint8_t table_id; | |
196 | ||
197 | /* OpenFlow matching criteria. Interpreted different in "loose" way by | |
198 | * collect_rules_loose() and "strict" way by collect_rules_strict(), as | |
199 | * defined in the OpenFlow spec. */ | |
200 | struct cls_rule cr; | |
201 | ||
202 | /* Matching criteria for the OpenFlow cookie. Consider a bit B in a rule's | |
203 | * cookie and the corresponding bits C in 'cookie' and M in 'cookie_mask'. | |
204 | * The rule will not be selected if M is 1 and B != C. */ | |
205 | ovs_be64 cookie; | |
206 | ovs_be64 cookie_mask; | |
207 | ||
208 | /* Selection based on actions within a rule: | |
209 | * | |
210 | * If out_port != OFPP_ANY, selects only rules that output to out_port. | |
211 | * If out_group != OFPG_ALL, select only rules that output to out_group. */ | |
212 | ofp_port_t out_port; | |
213 | uint32_t out_group; | |
214 | }; | |
215 | ||
216 | static void rule_criteria_init(struct rule_criteria *, uint8_t table_id, | |
217 | const struct match *match, | |
218 | unsigned int priority, | |
219 | ovs_be64 cookie, ovs_be64 cookie_mask, | |
220 | ofp_port_t out_port, uint32_t out_group); | |
221 | static void rule_criteria_destroy(struct rule_criteria *); | |
222 | ||
15aaf599 BP |
223 | /* A packet that needs to be passed to rule_execute(). |
224 | * | |
225 | * (We can't do this immediately from ofopgroup_complete() because that holds | |
226 | * ofproto_mutex, which rule_execute() needs released.) */ | |
35412852 BP |
227 | struct rule_execute { |
228 | struct list list_node; /* In struct ofproto's "rule_executes" list. */ | |
229 | struct rule *rule; /* Owns a reference to the rule. */ | |
230 | ofp_port_t in_port; | |
231 | struct ofpbuf *packet; /* Owns the packet. */ | |
232 | }; | |
233 | ||
15aaf599 | 234 | static void run_rule_executes(struct ofproto *) OVS_EXCLUDED(ofproto_mutex); |
35412852 BP |
235 | static void destroy_rule_executes(struct ofproto *); |
236 | ||
d0918789 | 237 | /* ofport. */ |
15aaf599 | 238 | static void ofport_destroy__(struct ofport *) OVS_EXCLUDED(ofproto_mutex); |
d0918789 BP |
239 | static void ofport_destroy(struct ofport *); |
240 | ||
241 | static void update_port(struct ofproto *, const char *devname); | |
242 | static int init_ports(struct ofproto *); | |
243 | static void reinit_ports(struct ofproto *); | |
7ee20df1 | 244 | |
fdcea803 GS |
245 | static long long int ofport_get_usage(const struct ofproto *, |
246 | ofp_port_t ofp_port); | |
247 | static void ofport_set_usage(struct ofproto *, ofp_port_t ofp_port, | |
248 | long long int last_used); | |
865b26a4 | 249 | static void ofport_remove_usage(struct ofproto *, ofp_port_t ofp_port); |
fdcea803 GS |
250 | |
251 | /* Ofport usage. | |
252 | * | |
253 | * Keeps track of the currently used and recently used ofport values and is | |
254 | * used to prevent immediate recycling of ofport values. */ | |
255 | struct ofport_usage { | |
256 | struct hmap_node hmap_node; /* In struct ofproto's "ofport_usage" hmap. */ | |
257 | ofp_port_t ofp_port; /* OpenFlow port number. */ | |
258 | long long int last_used; /* Last time the 'ofp_port' was used. LLONG_MAX | |
259 | represents in-use ofports. */ | |
260 | }; | |
261 | ||
254750ce | 262 | /* rule. */ |
254750ce | 263 | static void ofproto_rule_send_removed(struct rule *, uint8_t reason); |
adcf00ba AZ |
264 | static bool rule_is_modifiable(const struct rule *rule, |
265 | enum ofputil_flow_mod_flags flag); | |
254750ce | 266 | |
d0918789 | 267 | /* OpenFlow. */ |
90bf1e07 | 268 | static enum ofperr add_flow(struct ofproto *, struct ofconn *, |
e3b56933 | 269 | struct ofputil_flow_mod *, |
90bf1e07 | 270 | const struct ofp_header *); |
1ebeaaa7 JS |
271 | static void do_add_flow(struct ofproto *, struct ofconn *, |
272 | const struct ofp_header *request, uint32_t buffer_id, | |
273 | struct rule *); | |
b277c7cc BP |
274 | static enum ofperr modify_flows__(struct ofproto *, struct ofconn *, |
275 | struct ofputil_flow_mod *, | |
a8e547c1 BP |
276 | const struct ofp_header *, |
277 | const struct rule_collection *); | |
ad3efdcb EJ |
278 | static void delete_flow__(struct rule *rule, struct ofopgroup *, |
279 | enum ofp_flow_removed_reason) | |
15aaf599 | 280 | OVS_REQUIRES(ofproto_mutex); |
7e9f8266 BP |
281 | static bool ofproto_group_exists__(const struct ofproto *ofproto, |
282 | uint32_t group_id) | |
283 | OVS_REQ_RDLOCK(ofproto->groups_rwlock); | |
84d68566 SH |
284 | static bool ofproto_group_exists(const struct ofproto *ofproto, |
285 | uint32_t group_id) | |
7e9f8266 | 286 | OVS_EXCLUDED(ofproto->groups_rwlock); |
7395c052 | 287 | static enum ofperr add_group(struct ofproto *, struct ofputil_group_mod *); |
e03248b7 | 288 | static bool handle_openflow(struct ofconn *, const struct ofpbuf *); |
90bf1e07 | 289 | static enum ofperr handle_flow_mod__(struct ofproto *, struct ofconn *, |
e3b56933 | 290 | struct ofputil_flow_mod *, |
15aaf599 BP |
291 | const struct ofp_header *) |
292 | OVS_EXCLUDED(ofproto_mutex); | |
65e0be10 BP |
293 | static void calc_duration(long long int start, long long int now, |
294 | uint32_t *sec, uint32_t *nsec); | |
f29152ca | 295 | |
d0918789 BP |
296 | /* ofproto. */ |
297 | static uint64_t pick_datapath_id(const struct ofproto *); | |
298 | static uint64_t pick_fallback_dpid(void); | |
299 | static void ofproto_destroy__(struct ofproto *); | |
ada3428f | 300 | static void update_mtu(struct ofproto *, struct ofport *); |
6b3f7f02 | 301 | static void meter_delete(struct ofproto *, uint32_t first, uint32_t last); |
f29152ca | 302 | |
d0918789 | 303 | /* unixctl. */ |
abe529af | 304 | static void ofproto_unixctl_init(void); |
f29152ca | 305 | |
abe529af BP |
306 | /* All registered ofproto classes, in probe order. */ |
307 | static const struct ofproto_class **ofproto_classes; | |
308 | static size_t n_ofproto_classes; | |
309 | static size_t allocated_ofproto_classes; | |
7aa697dd | 310 | |
15aaf599 BP |
311 | /* Global lock that protects all flow table operations. */ |
312 | struct ovs_mutex ofproto_mutex = OVS_MUTEX_INITIALIZER; | |
abe7b10f | 313 | |
e79a6c83 | 314 | unsigned ofproto_flow_limit = OFPROTO_FLOW_LIMIT_DEFAULT; |
72310b04 | 315 | unsigned ofproto_max_idle = OFPROTO_MAX_IDLE_DEFAULT; |
380f49c4 | 316 | |
e79a6c83 | 317 | size_t n_handlers, n_revalidators; |
6567010f | 318 | |
f797957a | 319 | /* Map from datapath name to struct ofproto, for use by unixctl commands. */ |
abe529af | 320 | static struct hmap all_ofprotos = HMAP_INITIALIZER(&all_ofprotos); |
ebe482fd | 321 | |
e1b1d06a JP |
322 | /* Initial mappings of port to OpenFlow number mappings. */ |
323 | static struct shash init_ofp_ports = SHASH_INITIALIZER(&init_ofp_ports); | |
324 | ||
abe529af | 325 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); |
f29152ca | 326 | |
40358701 GS |
327 | /* The default value of true waits for flow restore. */ |
328 | static bool flow_restore_wait = true; | |
329 | ||
b0408fca JP |
330 | /* Must be called to initialize the ofproto library. |
331 | * | |
332 | * The caller may pass in 'iface_hints', which contains an shash of | |
333 | * "iface_hint" elements indexed by the interface's name. The provider | |
334 | * may use these hints to describe the startup configuration in order to | |
335 | * reinitialize its state. The caller owns the provided data, so a | |
336 | * provider will make copies of anything required. An ofproto provider | |
337 | * will remove any existing state that is not described by the hint, and | |
338 | * may choose to remove it all. */ | |
339 | void | |
340 | ofproto_init(const struct shash *iface_hints) | |
abe529af | 341 | { |
e1b1d06a | 342 | struct shash_node *node; |
b0408fca | 343 | size_t i; |
f29152ca | 344 | |
b0408fca JP |
345 | ofproto_class_register(&ofproto_dpif_class); |
346 | ||
e1b1d06a JP |
347 | /* Make a local copy, since we don't own 'iface_hints' elements. */ |
348 | SHASH_FOR_EACH(node, iface_hints) { | |
349 | const struct iface_hint *orig_hint = node->data; | |
350 | struct iface_hint *new_hint = xmalloc(sizeof *new_hint); | |
351 | const char *br_type = ofproto_normalize_type(orig_hint->br_type); | |
352 | ||
353 | new_hint->br_name = xstrdup(orig_hint->br_name); | |
354 | new_hint->br_type = xstrdup(br_type); | |
355 | new_hint->ofp_port = orig_hint->ofp_port; | |
356 | ||
357 | shash_add(&init_ofp_ports, node->name, new_hint); | |
358 | } | |
359 | ||
b0408fca | 360 | for (i = 0; i < n_ofproto_classes; i++) { |
e1b1d06a | 361 | ofproto_classes[i]->init(&init_ofp_ports); |
abe529af BP |
362 | } |
363 | } | |
f29152ca | 364 | |
abe529af BP |
365 | /* 'type' should be a normalized datapath type, as returned by |
366 | * ofproto_normalize_type(). Returns the corresponding ofproto_class | |
367 | * structure, or a null pointer if there is none registered for 'type'. */ | |
368 | static const struct ofproto_class * | |
369 | ofproto_class_find__(const char *type) | |
370 | { | |
371 | size_t i; | |
f29152ca | 372 | |
abe529af BP |
373 | for (i = 0; i < n_ofproto_classes; i++) { |
374 | const struct ofproto_class *class = ofproto_classes[i]; | |
375 | struct sset types; | |
376 | bool found; | |
064af421 | 377 | |
abe529af BP |
378 | sset_init(&types); |
379 | class->enumerate_types(&types); | |
380 | found = sset_contains(&types, type); | |
381 | sset_destroy(&types); | |
bcf84111 | 382 | |
abe529af BP |
383 | if (found) { |
384 | return class; | |
385 | } | |
386 | } | |
387 | VLOG_WARN("unknown datapath type %s", type); | |
388 | return NULL; | |
389 | } | |
064af421 | 390 | |
abe529af BP |
391 | /* Registers a new ofproto class. After successful registration, new ofprotos |
392 | * of that type can be created using ofproto_create(). */ | |
393 | int | |
394 | ofproto_class_register(const struct ofproto_class *new_class) | |
395 | { | |
396 | size_t i; | |
7aa697dd | 397 | |
abe529af BP |
398 | for (i = 0; i < n_ofproto_classes; i++) { |
399 | if (ofproto_classes[i] == new_class) { | |
400 | return EEXIST; | |
401 | } | |
402 | } | |
064af421 | 403 | |
abe529af BP |
404 | if (n_ofproto_classes >= allocated_ofproto_classes) { |
405 | ofproto_classes = x2nrealloc(ofproto_classes, | |
406 | &allocated_ofproto_classes, | |
407 | sizeof *ofproto_classes); | |
408 | } | |
409 | ofproto_classes[n_ofproto_classes++] = new_class; | |
410 | return 0; | |
411 | } | |
064af421 | 412 | |
abe529af BP |
413 | /* Unregisters a datapath provider. 'type' must have been previously |
414 | * registered and not currently be in use by any ofprotos. After | |
415 | * unregistration new datapaths of that type cannot be opened using | |
416 | * ofproto_create(). */ | |
417 | int | |
418 | ofproto_class_unregister(const struct ofproto_class *class) | |
419 | { | |
420 | size_t i; | |
76ce9432 | 421 | |
abe529af BP |
422 | for (i = 0; i < n_ofproto_classes; i++) { |
423 | if (ofproto_classes[i] == class) { | |
424 | for (i++; i < n_ofproto_classes; i++) { | |
425 | ofproto_classes[i - 1] = ofproto_classes[i]; | |
426 | } | |
427 | n_ofproto_classes--; | |
428 | return 0; | |
429 | } | |
430 | } | |
431 | VLOG_WARN("attempted to unregister an ofproto class that is not " | |
432 | "registered"); | |
433 | return EAFNOSUPPORT; | |
434 | } | |
4a4cdb3b | 435 | |
f79e673f BP |
436 | /* Clears 'types' and enumerates all registered ofproto types into it. The |
437 | * caller must first initialize the sset. */ | |
438 | void | |
439 | ofproto_enumerate_types(struct sset *types) | |
440 | { | |
abe529af | 441 | size_t i; |
064af421 | 442 | |
c799c306 | 443 | sset_clear(types); |
abe529af BP |
444 | for (i = 0; i < n_ofproto_classes; i++) { |
445 | ofproto_classes[i]->enumerate_types(types); | |
446 | } | |
f79e673f | 447 | } |
064af421 | 448 | |
f79e673f BP |
449 | /* Returns the fully spelled out name for the given ofproto 'type'. |
450 | * | |
451 | * Normalized type string can be compared with strcmp(). Unnormalized type | |
452 | * string might be the same even if they have different spellings. */ | |
453 | const char * | |
454 | ofproto_normalize_type(const char *type) | |
455 | { | |
abe529af | 456 | return type && type[0] ? type : "system"; |
f79e673f | 457 | } |
064af421 | 458 | |
f79e673f BP |
459 | /* Clears 'names' and enumerates the names of all known created ofprotos with |
460 | * the given 'type'. The caller must first initialize the sset. Returns 0 if | |
461 | * successful, otherwise a positive errno value. | |
462 | * | |
463 | * Some kinds of datapaths might not be practically enumerable. This is not | |
464 | * considered an error. */ | |
465 | int | |
466 | ofproto_enumerate_names(const char *type, struct sset *names) | |
467 | { | |
abe529af BP |
468 | const struct ofproto_class *class = ofproto_class_find__(type); |
469 | return class ? class->enumerate_names(type, names) : EAFNOSUPPORT; | |
239ad7d1 | 470 | } |
7aa697dd | 471 | |
064af421 | 472 | int |
abe529af | 473 | ofproto_create(const char *datapath_name, const char *datapath_type, |
064af421 BP |
474 | struct ofproto **ofprotop) |
475 | { | |
abe529af BP |
476 | const struct ofproto_class *class; |
477 | struct ofproto *ofproto; | |
064af421 | 478 | int error; |
c2f0373a | 479 | int i; |
064af421 BP |
480 | |
481 | *ofprotop = NULL; | |
482 | ||
7aa697dd BP |
483 | ofproto_unixctl_init(); |
484 | ||
abe529af BP |
485 | datapath_type = ofproto_normalize_type(datapath_type); |
486 | class = ofproto_class_find__(datapath_type); | |
487 | if (!class) { | |
488 | VLOG_WARN("could not create datapath %s of unknown type %s", | |
489 | datapath_name, datapath_type); | |
490 | return EAFNOSUPPORT; | |
064af421 BP |
491 | } |
492 | ||
abe529af BP |
493 | ofproto = class->alloc(); |
494 | if (!ofproto) { | |
495 | VLOG_ERR("failed to allocate datapath %s of type %s", | |
496 | datapath_name, datapath_type); | |
497 | return ENOMEM; | |
498 | } | |
499 | ||
500 | /* Initialize. */ | |
abe7b10f | 501 | ovs_mutex_lock(&ofproto_mutex); |
abe529af BP |
502 | memset(ofproto, 0, sizeof *ofproto); |
503 | ofproto->ofproto_class = class; | |
504 | ofproto->name = xstrdup(datapath_name); | |
505 | ofproto->type = xstrdup(datapath_type); | |
506 | hmap_insert(&all_ofprotos, &ofproto->hmap_node, | |
507 | hash_string(ofproto->name, 0)); | |
508 | ofproto->datapath_id = 0; | |
8402c74b | 509 | ofproto->forward_bpdu = false; |
abe529af | 510 | ofproto->fallback_dpid = pick_fallback_dpid(); |
061bfea4 BP |
511 | ofproto->mfr_desc = NULL; |
512 | ofproto->hw_desc = NULL; | |
513 | ofproto->sw_desc = NULL; | |
514 | ofproto->serial_desc = NULL; | |
515 | ofproto->dp_desc = NULL; | |
7257b535 | 516 | ofproto->frag_handling = OFPC_FRAG_NORMAL; |
abe529af | 517 | hmap_init(&ofproto->ports); |
fdcea803 | 518 | hmap_init(&ofproto->ofport_usage); |
abe529af | 519 | shash_init(&ofproto->port_by_name); |
e1b1d06a | 520 | simap_init(&ofproto->ofp_requests); |
430dbb14 | 521 | ofproto->max_ports = ofp_to_u16(OFPP_MAX); |
448c2fa8 | 522 | ofproto->eviction_group_timer = LLONG_MIN; |
6c1491fb BP |
523 | ofproto->tables = NULL; |
524 | ofproto->n_tables = 0; | |
98eaac36 | 525 | hindex_init(&ofproto->cookies); |
e503cc19 | 526 | list_init(&ofproto->expirable); |
abe529af | 527 | ofproto->connmgr = connmgr_create(ofproto, datapath_name, datapath_name); |
7ee20df1 BP |
528 | ofproto->state = S_OPENFLOW; |
529 | list_init(&ofproto->pending); | |
dd5616b3 | 530 | ofproto->n_pending = 0; |
7ee20df1 | 531 | hmap_init(&ofproto->deletions); |
35412852 | 532 | guarded_list_init(&ofproto->rule_executes); |
52a90c29 BP |
533 | ofproto->vlan_bitmap = NULL; |
534 | ofproto->vlans_changed = false; | |
ada3428f | 535 | ofproto->min_mtu = INT_MAX; |
7395c052 NZ |
536 | ovs_rwlock_init(&ofproto->groups_rwlock); |
537 | hmap_init(&ofproto->groups); | |
abe7b10f | 538 | ovs_mutex_unlock(&ofproto_mutex); |
7cb279c2 SH |
539 | ofproto->ogf.capabilities = OFPGFC_CHAINING | OFPGFC_SELECT_LIVENESS | |
540 | OFPGFC_SELECT_WEIGHT; | |
f4fb341b | 541 | ofproto->ogf.max_groups[OFPGT11_ALL] = OFPG_MAX; |
fe7e5749 | 542 | ofproto->ogf.max_groups[OFPGT11_SELECT] = OFPG_MAX; |
f4fb341b | 543 | ofproto->ogf.max_groups[OFPGT11_INDIRECT] = OFPG_MAX; |
dd8cd4b4 | 544 | ofproto->ogf.max_groups[OFPGT11_FF] = OFPG_MAX; |
ddc627ad | 545 | ofproto->ogf.actions[0] = |
f0e7025f BP |
546 | (1 << OFPAT11_OUTPUT) | |
547 | (1 << OFPAT11_COPY_TTL_OUT) | | |
548 | (1 << OFPAT11_COPY_TTL_IN) | | |
549 | (1 << OFPAT11_SET_MPLS_TTL) | | |
550 | (1 << OFPAT11_DEC_MPLS_TTL) | | |
551 | (1 << OFPAT11_PUSH_VLAN) | | |
552 | (1 << OFPAT11_POP_VLAN) | | |
553 | (1 << OFPAT11_PUSH_MPLS) | | |
554 | (1 << OFPAT11_POP_MPLS) | | |
555 | (1 << OFPAT11_SET_QUEUE) | | |
556 | (1 << OFPAT11_GROUP) | | |
557 | (1 << OFPAT11_SET_NW_TTL) | | |
558 | (1 << OFPAT11_DEC_NW_TTL) | | |
559 | (1 << OFPAT12_SET_FIELD); | |
560 | /* not supported: | |
561 | * (1 << OFPAT13_PUSH_PBB) | | |
562 | * (1 << OFPAT13_POP_PBB) */ | |
abe529af | 563 | |
0f5f95a9 | 564 | error = ofproto->ofproto_class->construct(ofproto); |
19a87e36 | 565 | if (error) { |
abe529af | 566 | VLOG_ERR("failed to open datapath %s: %s", |
10a89ef0 | 567 | datapath_name, ovs_strerror(error)); |
abe529af | 568 | ofproto_destroy__(ofproto); |
19a87e36 BP |
569 | return error; |
570 | } | |
073e2a6f | 571 | |
c2f0373a | 572 | /* Check that hidden tables, if any, are at the end. */ |
cb22974d | 573 | ovs_assert(ofproto->n_tables); |
c2f0373a BP |
574 | for (i = 0; i + 1 < ofproto->n_tables; i++) { |
575 | enum oftable_flags flags = ofproto->tables[i].flags; | |
576 | enum oftable_flags next_flags = ofproto->tables[i + 1].flags; | |
577 | ||
cb22974d | 578 | ovs_assert(!(flags & OFTABLE_HIDDEN) || next_flags & OFTABLE_HIDDEN); |
c2f0373a | 579 | } |
19a87e36 | 580 | |
abe529af | 581 | ofproto->datapath_id = pick_datapath_id(ofproto); |
abe529af | 582 | init_ports(ofproto); |
7aa697dd | 583 | |
9cae45dc JR |
584 | /* Initialize meters table. */ |
585 | if (ofproto->ofproto_class->meter_get_features) { | |
586 | ofproto->ofproto_class->meter_get_features(ofproto, | |
587 | &ofproto->meter_features); | |
588 | } else { | |
589 | memset(&ofproto->meter_features, 0, sizeof ofproto->meter_features); | |
590 | } | |
591 | ofproto->meters = xzalloc((ofproto->meter_features.max_meters + 1) | |
592 | * sizeof(struct meter *)); | |
593 | ||
abe529af | 594 | *ofprotop = ofproto; |
064af421 BP |
595 | return 0; |
596 | } | |
597 | ||
91858960 BP |
598 | /* Must be called (only) by an ofproto implementation in its constructor |
599 | * function. See the large comment on 'construct' in struct ofproto_class for | |
600 | * details. */ | |
0f5f95a9 BP |
601 | void |
602 | ofproto_init_tables(struct ofproto *ofproto, int n_tables) | |
603 | { | |
604 | struct oftable *table; | |
605 | ||
cb22974d BP |
606 | ovs_assert(!ofproto->n_tables); |
607 | ovs_assert(n_tables >= 1 && n_tables <= 255); | |
0f5f95a9 BP |
608 | |
609 | ofproto->n_tables = n_tables; | |
610 | ofproto->tables = xmalloc(n_tables * sizeof *ofproto->tables); | |
611 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { | |
612 | oftable_init(table); | |
613 | } | |
614 | } | |
615 | ||
91858960 BP |
616 | /* To be optionally called (only) by an ofproto implementation in its |
617 | * constructor function. See the large comment on 'construct' in struct | |
618 | * ofproto_class for details. | |
619 | * | |
620 | * Sets the maximum number of ports to 'max_ports'. The ofproto generic layer | |
621 | * will then ensure that actions passed into the ofproto implementation will | |
622 | * not refer to OpenFlow ports numbered 'max_ports' or higher. If this | |
623 | * function is not called, there will be no such restriction. | |
624 | * | |
625 | * Reserved ports numbered OFPP_MAX and higher are special and not subject to | |
626 | * the 'max_ports' restriction. */ | |
627 | void | |
430dbb14 | 628 | ofproto_init_max_ports(struct ofproto *ofproto, uint16_t max_ports) |
91858960 | 629 | { |
430dbb14 | 630 | ovs_assert(max_ports <= ofp_to_u16(OFPP_MAX)); |
91858960 BP |
631 | ofproto->max_ports = max_ports; |
632 | } | |
633 | ||
e825ace2 BP |
634 | uint64_t |
635 | ofproto_get_datapath_id(const struct ofproto *ofproto) | |
636 | { | |
637 | return ofproto->datapath_id; | |
638 | } | |
639 | ||
064af421 BP |
640 | void |
641 | ofproto_set_datapath_id(struct ofproto *p, uint64_t datapath_id) | |
642 | { | |
643 | uint64_t old_dpid = p->datapath_id; | |
fa60c019 | 644 | p->datapath_id = datapath_id ? datapath_id : pick_datapath_id(p); |
064af421 | 645 | if (p->datapath_id != old_dpid) { |
76ce9432 BP |
646 | /* Force all active connections to reconnect, since there is no way to |
647 | * notify a controller that the datapath ID has changed. */ | |
fa05809b | 648 | ofproto_reconnect_controllers(p); |
064af421 BP |
649 | } |
650 | } | |
651 | ||
76ce9432 BP |
652 | void |
653 | ofproto_set_controllers(struct ofproto *p, | |
654 | const struct ofproto_controller *controllers, | |
1d9ffc17 | 655 | size_t n_controllers, uint32_t allowed_versions) |
76ce9432 | 656 | { |
1d9ffc17 SH |
657 | connmgr_set_controllers(p->connmgr, controllers, n_controllers, |
658 | allowed_versions); | |
064af421 BP |
659 | } |
660 | ||
31681a5d JP |
661 | void |
662 | ofproto_set_fail_mode(struct ofproto *p, enum ofproto_fail_mode fail_mode) | |
663 | { | |
19a87e36 | 664 | connmgr_set_fail_mode(p->connmgr, fail_mode); |
31681a5d JP |
665 | } |
666 | ||
fa05809b BP |
667 | /* Drops the connections between 'ofproto' and all of its controllers, forcing |
668 | * them to reconnect. */ | |
669 | void | |
670 | ofproto_reconnect_controllers(struct ofproto *ofproto) | |
671 | { | |
19a87e36 | 672 | connmgr_reconnect(ofproto->connmgr); |
917e50e1 BP |
673 | } |
674 | ||
675 | /* Sets the 'n' TCP port addresses in 'extras' as ones to which 'ofproto''s | |
676 | * in-band control should guarantee access, in the same way that in-band | |
677 | * control guarantees access to OpenFlow controllers. */ | |
678 | void | |
679 | ofproto_set_extra_in_band_remotes(struct ofproto *ofproto, | |
680 | const struct sockaddr_in *extras, size_t n) | |
681 | { | |
19a87e36 | 682 | connmgr_set_extra_in_band_remotes(ofproto->connmgr, extras, n); |
917e50e1 BP |
683 | } |
684 | ||
b1da6250 BP |
685 | /* Sets the OpenFlow queue used by flows set up by in-band control on |
686 | * 'ofproto' to 'queue_id'. If 'queue_id' is negative, then in-band control | |
687 | * flows will use the default queue. */ | |
688 | void | |
689 | ofproto_set_in_band_queue(struct ofproto *ofproto, int queue_id) | |
690 | { | |
19a87e36 | 691 | connmgr_set_in_band_queue(ofproto->connmgr, queue_id); |
b1da6250 BP |
692 | } |
693 | ||
084f5290 SH |
694 | /* Sets the number of flows at which eviction from the kernel flow table |
695 | * will occur. */ | |
696 | void | |
e79a6c83 | 697 | ofproto_set_flow_limit(unsigned limit) |
084f5290 | 698 | { |
e79a6c83 | 699 | ofproto_flow_limit = limit; |
084f5290 SH |
700 | } |
701 | ||
72310b04 JS |
702 | /* Sets the maximum idle time for flows in the datapath before they are |
703 | * expired. */ | |
704 | void | |
705 | ofproto_set_max_idle(unsigned max_idle) | |
706 | { | |
707 | ofproto_max_idle = max_idle; | |
708 | } | |
709 | ||
b53055f4 | 710 | /* If forward_bpdu is true, the NORMAL action will forward frames with |
8402c74b SS |
711 | * reserved (e.g. STP) destination Ethernet addresses. if forward_bpdu is false, |
712 | * the NORMAL action will drop these frames. */ | |
713 | void | |
714 | ofproto_set_forward_bpdu(struct ofproto *ofproto, bool forward_bpdu) | |
715 | { | |
716 | bool old_val = ofproto->forward_bpdu; | |
717 | ofproto->forward_bpdu = forward_bpdu; | |
718 | if (old_val != ofproto->forward_bpdu) { | |
719 | if (ofproto->ofproto_class->forward_bpdu_changed) { | |
720 | ofproto->ofproto_class->forward_bpdu_changed(ofproto); | |
721 | } | |
b53055f4 | 722 | } |
8402c74b SS |
723 | } |
724 | ||
e764773c | 725 | /* Sets the MAC aging timeout for the OFPP_NORMAL action on 'ofproto' to |
c4069512 BP |
726 | * 'idle_time', in seconds, and the maximum number of MAC table entries to |
727 | * 'max_entries'. */ | |
e764773c | 728 | void |
c4069512 BP |
729 | ofproto_set_mac_table_config(struct ofproto *ofproto, unsigned idle_time, |
730 | size_t max_entries) | |
e764773c | 731 | { |
c4069512 BP |
732 | if (ofproto->ofproto_class->set_mac_table_config) { |
733 | ofproto->ofproto_class->set_mac_table_config(ofproto, idle_time, | |
734 | max_entries); | |
e764773c BP |
735 | } |
736 | } | |
737 | ||
448a4b2f | 738 | void |
30ea0da7 | 739 | ofproto_set_threads(int n_handlers_, int n_revalidators_) |
448a4b2f | 740 | { |
e79a6c83 EJ |
741 | int threads = MAX(count_cpu_cores(), 2); |
742 | ||
30ea0da7 GS |
743 | n_revalidators = MAX(n_revalidators_, 0); |
744 | n_handlers = MAX(n_handlers_, 0); | |
e79a6c83 EJ |
745 | |
746 | if (!n_revalidators) { | |
747 | n_revalidators = n_handlers | |
748 | ? MAX(threads - (int) n_handlers, 1) | |
749 | : threads / 4 + 1; | |
750 | } | |
751 | ||
752 | if (!n_handlers) { | |
753 | n_handlers = MAX(threads - (int) n_revalidators, 1); | |
754 | } | |
448a4b2f AW |
755 | } |
756 | ||
8b6ff729 BP |
757 | void |
758 | ofproto_set_dp_desc(struct ofproto *p, const char *dp_desc) | |
759 | { | |
760 | free(p->dp_desc); | |
761 | p->dp_desc = dp_desc ? xstrdup(dp_desc) : NULL; | |
762 | } | |
763 | ||
064af421 | 764 | int |
81e2083f | 765 | ofproto_set_snoops(struct ofproto *ofproto, const struct sset *snoops) |
064af421 | 766 | { |
19a87e36 | 767 | return connmgr_set_snoops(ofproto->connmgr, snoops); |
064af421 BP |
768 | } |
769 | ||
770 | int | |
0193b2af JG |
771 | ofproto_set_netflow(struct ofproto *ofproto, |
772 | const struct netflow_options *nf_options) | |
064af421 | 773 | { |
abe529af BP |
774 | if (nf_options && sset_is_empty(&nf_options->collectors)) { |
775 | nf_options = NULL; | |
776 | } | |
777 | ||
778 | if (ofproto->ofproto_class->set_netflow) { | |
779 | return ofproto->ofproto_class->set_netflow(ofproto, nf_options); | |
064af421 | 780 | } else { |
abe529af | 781 | return nf_options ? EOPNOTSUPP : 0; |
064af421 BP |
782 | } |
783 | } | |
784 | ||
abe529af | 785 | int |
72b06300 BP |
786 | ofproto_set_sflow(struct ofproto *ofproto, |
787 | const struct ofproto_sflow_options *oso) | |
788 | { | |
abe529af BP |
789 | if (oso && sset_is_empty(&oso->targets)) { |
790 | oso = NULL; | |
791 | } | |
72b06300 | 792 | |
abe529af BP |
793 | if (ofproto->ofproto_class->set_sflow) { |
794 | return ofproto->ofproto_class->set_sflow(ofproto, oso); | |
72b06300 | 795 | } else { |
abe529af | 796 | return oso ? EOPNOTSUPP : 0; |
72b06300 BP |
797 | } |
798 | } | |
29089a54 RL |
799 | |
800 | int | |
801 | ofproto_set_ipfix(struct ofproto *ofproto, | |
802 | const struct ofproto_ipfix_bridge_exporter_options *bo, | |
803 | const struct ofproto_ipfix_flow_exporter_options *fo, | |
804 | size_t n_fo) | |
805 | { | |
806 | if (ofproto->ofproto_class->set_ipfix) { | |
807 | return ofproto->ofproto_class->set_ipfix(ofproto, bo, fo, n_fo); | |
808 | } else { | |
809 | return (bo || fo) ? EOPNOTSUPP : 0; | |
810 | } | |
811 | } | |
40358701 GS |
812 | |
813 | void | |
814 | ofproto_set_flow_restore_wait(bool flow_restore_wait_db) | |
815 | { | |
816 | flow_restore_wait = flow_restore_wait_db; | |
817 | } | |
818 | ||
819 | bool | |
820 | ofproto_get_flow_restore_wait(void) | |
821 | { | |
822 | return flow_restore_wait; | |
823 | } | |
824 | ||
e7934396 | 825 | \f |
21f7563c JP |
826 | /* Spanning Tree Protocol (STP) configuration. */ |
827 | ||
828 | /* Configures STP on 'ofproto' using the settings defined in 's'. If | |
829 | * 's' is NULL, disables STP. | |
830 | * | |
831 | * Returns 0 if successful, otherwise a positive errno value. */ | |
832 | int | |
833 | ofproto_set_stp(struct ofproto *ofproto, | |
834 | const struct ofproto_stp_settings *s) | |
835 | { | |
836 | return (ofproto->ofproto_class->set_stp | |
837 | ? ofproto->ofproto_class->set_stp(ofproto, s) | |
838 | : EOPNOTSUPP); | |
839 | } | |
840 | ||
841 | /* Retrieves STP status of 'ofproto' and stores it in 's'. If the | |
842 | * 'enabled' member of 's' is false, then the other members are not | |
843 | * meaningful. | |
844 | * | |
845 | * Returns 0 if successful, otherwise a positive errno value. */ | |
846 | int | |
847 | ofproto_get_stp_status(struct ofproto *ofproto, | |
848 | struct ofproto_stp_status *s) | |
849 | { | |
850 | return (ofproto->ofproto_class->get_stp_status | |
851 | ? ofproto->ofproto_class->get_stp_status(ofproto, s) | |
852 | : EOPNOTSUPP); | |
853 | } | |
854 | ||
855 | /* Configures STP on 'ofp_port' of 'ofproto' using the settings defined | |
856 | * in 's'. The caller is responsible for assigning STP port numbers | |
857 | * (using the 'port_num' member in the range of 1 through 255, inclusive) | |
858 | * and ensuring there are no duplicates. If the 's' is NULL, then STP | |
859 | * is disabled on the port. | |
860 | * | |
861 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
862 | int | |
4e022ec0 | 863 | ofproto_port_set_stp(struct ofproto *ofproto, ofp_port_t ofp_port, |
21f7563c JP |
864 | const struct ofproto_port_stp_settings *s) |
865 | { | |
866 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
867 | if (!ofport) { | |
868 | VLOG_WARN("%s: cannot configure STP on nonexistent port %"PRIu16, | |
869 | ofproto->name, ofp_port); | |
870 | return ENODEV; | |
871 | } | |
872 | ||
873 | return (ofproto->ofproto_class->set_stp_port | |
874 | ? ofproto->ofproto_class->set_stp_port(ofport, s) | |
875 | : EOPNOTSUPP); | |
876 | } | |
877 | ||
878 | /* Retrieves STP port status of 'ofp_port' on 'ofproto' and stores it in | |
879 | * 's'. If the 'enabled' member in 's' is false, then the other members | |
880 | * are not meaningful. | |
881 | * | |
882 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
883 | int | |
4e022ec0 | 884 | ofproto_port_get_stp_status(struct ofproto *ofproto, ofp_port_t ofp_port, |
21f7563c JP |
885 | struct ofproto_port_stp_status *s) |
886 | { | |
887 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
888 | if (!ofport) { | |
b0a5c43b JP |
889 | VLOG_WARN_RL(&rl, "%s: cannot get STP status on nonexistent " |
890 | "port %"PRIu16, ofproto->name, ofp_port); | |
21f7563c JP |
891 | return ENODEV; |
892 | } | |
893 | ||
894 | return (ofproto->ofproto_class->get_stp_port_status | |
895 | ? ofproto->ofproto_class->get_stp_port_status(ofport, s) | |
896 | : EOPNOTSUPP); | |
897 | } | |
fd28ce3a JS |
898 | |
899 | /* Retrieves STP port statistics of 'ofp_port' on 'ofproto' and stores it in | |
900 | * 's'. If the 'enabled' member in 's' is false, then the other members | |
901 | * are not meaningful. | |
902 | * | |
903 | * Returns 0 if successful, otherwise a positive errno value.*/ | |
904 | int | |
905 | ofproto_port_get_stp_stats(struct ofproto *ofproto, ofp_port_t ofp_port, | |
906 | struct ofproto_port_stp_stats *s) | |
907 | { | |
908 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
909 | if (!ofport) { | |
910 | VLOG_WARN_RL(&rl, "%s: cannot get STP stats on nonexistent " | |
911 | "port %"PRIu16, ofproto->name, ofp_port); | |
912 | return ENODEV; | |
913 | } | |
914 | ||
915 | return (ofproto->ofproto_class->get_stp_port_stats | |
916 | ? ofproto->ofproto_class->get_stp_port_stats(ofport, s) | |
917 | : EOPNOTSUPP); | |
918 | } | |
21f7563c | 919 | \f |
8b36f51e EJ |
920 | /* Queue DSCP configuration. */ |
921 | ||
922 | /* Registers meta-data associated with the 'n_qdscp' Qualities of Service | |
923 | * 'queues' attached to 'ofport'. This data is not intended to be sufficient | |
924 | * to implement QoS. Instead, it is used to implement features which require | |
925 | * knowledge of what queues exist on a port, and some basic information about | |
926 | * them. | |
927 | * | |
928 | * Returns 0 if successful, otherwise a positive errno value. */ | |
929 | int | |
4e022ec0 | 930 | ofproto_port_set_queues(struct ofproto *ofproto, ofp_port_t ofp_port, |
8b36f51e EJ |
931 | const struct ofproto_port_queue *queues, |
932 | size_t n_queues) | |
933 | { | |
934 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
935 | ||
936 | if (!ofport) { | |
937 | VLOG_WARN("%s: cannot set queues on nonexistent port %"PRIu16, | |
938 | ofproto->name, ofp_port); | |
939 | return ENODEV; | |
940 | } | |
941 | ||
942 | return (ofproto->ofproto_class->set_queues | |
943 | ? ofproto->ofproto_class->set_queues(ofport, queues, n_queues) | |
944 | : EOPNOTSUPP); | |
945 | } | |
946 | \f | |
e7934396 BP |
947 | /* Connectivity Fault Management configuration. */ |
948 | ||
892815f5 | 949 | /* Clears the CFM configuration from 'ofp_port' on 'ofproto'. */ |
e7934396 | 950 | void |
4e022ec0 | 951 | ofproto_port_clear_cfm(struct ofproto *ofproto, ofp_port_t ofp_port) |
e7934396 | 952 | { |
abe529af BP |
953 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
954 | if (ofport && ofproto->ofproto_class->set_cfm) { | |
a5610457 | 955 | ofproto->ofproto_class->set_cfm(ofport, NULL); |
e7934396 BP |
956 | } |
957 | } | |
72b06300 | 958 | |
892815f5 | 959 | /* Configures connectivity fault management on 'ofp_port' in 'ofproto'. Takes |
93b8df38 EJ |
960 | * basic configuration from the configuration members in 'cfm', and the remote |
961 | * maintenance point ID from remote_mpid. Ignores the statistics members of | |
962 | * 'cfm'. | |
e7934396 | 963 | * |
892815f5 | 964 | * This function has no effect if 'ofproto' does not have a port 'ofp_port'. */ |
e7934396 | 965 | void |
4e022ec0 | 966 | ofproto_port_set_cfm(struct ofproto *ofproto, ofp_port_t ofp_port, |
a5610457 | 967 | const struct cfm_settings *s) |
e7934396 BP |
968 | { |
969 | struct ofport *ofport; | |
abe529af | 970 | int error; |
e7934396 | 971 | |
abe529af | 972 | ofport = ofproto_get_port(ofproto, ofp_port); |
e7934396 | 973 | if (!ofport) { |
892815f5 BP |
974 | VLOG_WARN("%s: cannot configure CFM on nonexistent port %"PRIu16, |
975 | ofproto->name, ofp_port); | |
e7934396 BP |
976 | return; |
977 | } | |
978 | ||
93b8df38 EJ |
979 | /* XXX: For configuration simplicity, we only support one remote_mpid |
980 | * outside of the CFM module. It's not clear if this is the correct long | |
981 | * term solution or not. */ | |
abe529af | 982 | error = (ofproto->ofproto_class->set_cfm |
a5610457 | 983 | ? ofproto->ofproto_class->set_cfm(ofport, s) |
abe529af BP |
984 | : EOPNOTSUPP); |
985 | if (error) { | |
986 | VLOG_WARN("%s: CFM configuration on port %"PRIu16" (%s) failed (%s)", | |
987 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), | |
10a89ef0 | 988 | ovs_strerror(error)); |
e7934396 | 989 | } |
e7934396 | 990 | } |
e7934396 | 991 | |
ccc09689 EJ |
992 | /* Configures BFD on 'ofp_port' in 'ofproto'. This function has no effect if |
993 | * 'ofproto' does not have a port 'ofp_port'. */ | |
994 | void | |
4e022ec0 | 995 | ofproto_port_set_bfd(struct ofproto *ofproto, ofp_port_t ofp_port, |
ccc09689 EJ |
996 | const struct smap *cfg) |
997 | { | |
998 | struct ofport *ofport; | |
999 | int error; | |
1000 | ||
1001 | ofport = ofproto_get_port(ofproto, ofp_port); | |
1002 | if (!ofport) { | |
1003 | VLOG_WARN("%s: cannot configure bfd on nonexistent port %"PRIu16, | |
1004 | ofproto->name, ofp_port); | |
e8999bdc | 1005 | return; |
ccc09689 EJ |
1006 | } |
1007 | ||
1008 | error = (ofproto->ofproto_class->set_bfd | |
1009 | ? ofproto->ofproto_class->set_bfd(ofport, cfg) | |
1010 | : EOPNOTSUPP); | |
1011 | if (error) { | |
1012 | VLOG_WARN("%s: bfd configuration on port %"PRIu16" (%s) failed (%s)", | |
1013 | ofproto->name, ofp_port, netdev_get_name(ofport->netdev), | |
10a89ef0 | 1014 | ovs_strerror(error)); |
ccc09689 EJ |
1015 | } |
1016 | } | |
1017 | ||
88bf179a AW |
1018 | /* Populates 'status' with the status of BFD on 'ofport'. Returns 0 on |
1019 | * success. Returns a negative number if there is no status change since | |
1020 | * last update. Returns a positive errno otherwise. Has no effect if | |
1021 | * 'ofp_port' is not an OpenFlow port in 'ofproto'. | |
1022 | * | |
1023 | * The caller must provide and own '*status'. */ | |
ccc09689 | 1024 | int |
4e022ec0 | 1025 | ofproto_port_get_bfd_status(struct ofproto *ofproto, ofp_port_t ofp_port, |
ccc09689 EJ |
1026 | struct smap *status) |
1027 | { | |
1028 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
1029 | return (ofport && ofproto->ofproto_class->get_bfd_status | |
1030 | ? ofproto->ofproto_class->get_bfd_status(ofport, status) | |
1031 | : EOPNOTSUPP); | |
1032 | } | |
1033 | ||
fa066f01 BP |
1034 | /* Checks the status of LACP negotiation for 'ofp_port' within ofproto. |
1035 | * Returns 1 if LACP partner information for 'ofp_port' is up-to-date, | |
1036 | * 0 if LACP partner information is not current (generally indicating a | |
1037 | * connectivity problem), or -1 if LACP is not enabled on 'ofp_port'. */ | |
1038 | int | |
4e022ec0 | 1039 | ofproto_port_is_lacp_current(struct ofproto *ofproto, ofp_port_t ofp_port) |
fa066f01 | 1040 | { |
abe529af BP |
1041 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1042 | return (ofport && ofproto->ofproto_class->port_is_lacp_current | |
1043 | ? ofproto->ofproto_class->port_is_lacp_current(ofport) | |
fa066f01 | 1044 | : -1); |
e7934396 | 1045 | } |
e7934396 | 1046 | \f |
fa066f01 | 1047 | /* Bundles. */ |
e7934396 | 1048 | |
abe529af BP |
1049 | /* Registers a "bundle" associated with client data pointer 'aux' in 'ofproto'. |
1050 | * A bundle is the same concept as a Port in OVSDB, that is, it consists of one | |
1051 | * or more "slave" devices (Interfaces, in OVSDB) along with a VLAN | |
1052 | * configuration plus, if there is more than one slave, a bonding | |
1053 | * configuration. | |
1054 | * | |
1055 | * If 'aux' is already registered then this function updates its configuration | |
1056 | * to 's'. Otherwise, this function registers a new bundle. | |
1057 | * | |
1058 | * Bundles only affect the NXAST_AUTOPATH action and output to the OFPP_NORMAL | |
1059 | * port. */ | |
1060 | int | |
1061 | ofproto_bundle_register(struct ofproto *ofproto, void *aux, | |
1062 | const struct ofproto_bundle_settings *s) | |
fa066f01 | 1063 | { |
abe529af BP |
1064 | return (ofproto->ofproto_class->bundle_set |
1065 | ? ofproto->ofproto_class->bundle_set(ofproto, aux, s) | |
1066 | : EOPNOTSUPP); | |
fa066f01 BP |
1067 | } |
1068 | ||
abe529af BP |
1069 | /* Unregisters the bundle registered on 'ofproto' with auxiliary data 'aux'. |
1070 | * If no such bundle has been registered, this has no effect. */ | |
1071 | int | |
1072 | ofproto_bundle_unregister(struct ofproto *ofproto, void *aux) | |
e7934396 | 1073 | { |
abe529af | 1074 | return ofproto_bundle_register(ofproto, aux, NULL); |
e7934396 | 1075 | } |
fa066f01 | 1076 | |
e7934396 | 1077 | \f |
abe529af BP |
1078 | /* Registers a mirror associated with client data pointer 'aux' in 'ofproto'. |
1079 | * If 'aux' is already registered then this function updates its configuration | |
c06bba01 | 1080 | * to 's'. Otherwise, this function registers a new mirror. */ |
abe529af BP |
1081 | int |
1082 | ofproto_mirror_register(struct ofproto *ofproto, void *aux, | |
1083 | const struct ofproto_mirror_settings *s) | |
064af421 | 1084 | { |
abe529af BP |
1085 | return (ofproto->ofproto_class->mirror_set |
1086 | ? ofproto->ofproto_class->mirror_set(ofproto, aux, s) | |
1087 | : EOPNOTSUPP); | |
064af421 BP |
1088 | } |
1089 | ||
abe529af BP |
1090 | /* Unregisters the mirror registered on 'ofproto' with auxiliary data 'aux'. |
1091 | * If no mirror has been registered, this has no effect. */ | |
1092 | int | |
1093 | ofproto_mirror_unregister(struct ofproto *ofproto, void *aux) | |
064af421 | 1094 | { |
abe529af | 1095 | return ofproto_mirror_register(ofproto, aux, NULL); |
064af421 BP |
1096 | } |
1097 | ||
9d24de3b JP |
1098 | /* Retrieves statistics from mirror associated with client data pointer |
1099 | * 'aux' in 'ofproto'. Stores packet and byte counts in 'packets' and | |
1100 | * 'bytes', respectively. If a particular counters is not supported, | |
1101 | * the appropriate argument is set to UINT64_MAX. */ | |
1102 | int | |
1103 | ofproto_mirror_get_stats(struct ofproto *ofproto, void *aux, | |
1104 | uint64_t *packets, uint64_t *bytes) | |
1105 | { | |
1106 | if (!ofproto->ofproto_class->mirror_get_stats) { | |
1107 | *packets = *bytes = UINT64_MAX; | |
1108 | return EOPNOTSUPP; | |
1109 | } | |
1110 | ||
1111 | return ofproto->ofproto_class->mirror_get_stats(ofproto, aux, | |
1112 | packets, bytes); | |
1113 | } | |
1114 | ||
abe529af BP |
1115 | /* Configures the VLANs whose bits are set to 1 in 'flood_vlans' as VLANs on |
1116 | * which all packets are flooded, instead of using MAC learning. If | |
1117 | * 'flood_vlans' is NULL, then MAC learning applies to all VLANs. | |
1118 | * | |
1119 | * Flood VLANs affect only the treatment of packets output to the OFPP_NORMAL | |
1120 | * port. */ | |
1121 | int | |
1122 | ofproto_set_flood_vlans(struct ofproto *ofproto, unsigned long *flood_vlans) | |
abdfe474 | 1123 | { |
abe529af BP |
1124 | return (ofproto->ofproto_class->set_flood_vlans |
1125 | ? ofproto->ofproto_class->set_flood_vlans(ofproto, flood_vlans) | |
1126 | : EOPNOTSUPP); | |
abdfe474 JP |
1127 | } |
1128 | ||
abe529af BP |
1129 | /* Returns true if 'aux' is a registered bundle that is currently in use as the |
1130 | * output for a mirror. */ | |
1131 | bool | |
b4affc74 | 1132 | ofproto_is_mirror_output_bundle(const struct ofproto *ofproto, void *aux) |
abe529af BP |
1133 | { |
1134 | return (ofproto->ofproto_class->is_mirror_output_bundle | |
1135 | ? ofproto->ofproto_class->is_mirror_output_bundle(ofproto, aux) | |
1136 | : false); | |
1137 | } | |
1138 | \f | |
254750ce BP |
1139 | /* Configuration of OpenFlow tables. */ |
1140 | ||
1141 | /* Returns the number of OpenFlow tables in 'ofproto'. */ | |
1142 | int | |
1143 | ofproto_get_n_tables(const struct ofproto *ofproto) | |
1144 | { | |
1145 | return ofproto->n_tables; | |
1146 | } | |
1147 | ||
adcf00ba AZ |
1148 | /* Returns the number of Controller visible OpenFlow tables |
1149 | * in 'ofproto'. This number will exclude Hidden tables. | |
1150 | * This funtion's return value should be less or equal to that of | |
1151 | * ofproto_get_n_tables() . */ | |
1152 | uint8_t | |
1153 | ofproto_get_n_visible_tables(const struct ofproto *ofproto) | |
1154 | { | |
1155 | uint8_t n = ofproto->n_tables; | |
1156 | ||
1157 | /* Count only non-hidden tables in the number of tables. (Hidden tables, | |
1158 | * if present, are always at the end.) */ | |
1159 | while(n && (ofproto->tables[n - 1].flags & OFTABLE_HIDDEN)) { | |
1160 | n--; | |
1161 | } | |
1162 | ||
1163 | return n; | |
1164 | } | |
1165 | ||
254750ce BP |
1166 | /* Configures the OpenFlow table in 'ofproto' with id 'table_id' with the |
1167 | * settings from 's'. 'table_id' must be in the range 0 through the number of | |
1168 | * OpenFlow tables in 'ofproto' minus 1, inclusive. | |
1169 | * | |
1170 | * For read-only tables, only the name may be configured. */ | |
1171 | void | |
1172 | ofproto_configure_table(struct ofproto *ofproto, int table_id, | |
1173 | const struct ofproto_table_settings *s) | |
1174 | { | |
1175 | struct oftable *table; | |
1176 | ||
cb22974d | 1177 | ovs_assert(table_id >= 0 && table_id < ofproto->n_tables); |
254750ce BP |
1178 | table = &ofproto->tables[table_id]; |
1179 | ||
1180 | oftable_set_name(table, s->name); | |
1181 | ||
1182 | if (table->flags & OFTABLE_READONLY) { | |
1183 | return; | |
1184 | } | |
1185 | ||
1186 | if (s->groups) { | |
1187 | oftable_enable_eviction(table, s->groups, s->n_groups); | |
1188 | } else { | |
1189 | oftable_disable_eviction(table); | |
1190 | } | |
1191 | ||
1192 | table->max_flows = s->max_flows; | |
06f81620 | 1193 | fat_rwlock_wrlock(&table->cls.rwlock); |
254750ce BP |
1194 | if (classifier_count(&table->cls) > table->max_flows |
1195 | && table->eviction_fields) { | |
1196 | /* 'table' contains more flows than allowed. We might not be able to | |
1197 | * evict them right away because of the asynchronous nature of flow | |
1198 | * table changes. Schedule eviction for later. */ | |
1199 | switch (ofproto->state) { | |
1200 | case S_OPENFLOW: | |
1201 | ofproto->state = S_EVICT; | |
1202 | break; | |
1203 | case S_EVICT: | |
1204 | case S_FLUSH: | |
1205 | /* We're already deleting flows, nothing more to do. */ | |
1206 | break; | |
1207 | } | |
1208 | } | |
13751fd8 JR |
1209 | |
1210 | classifier_set_prefix_fields(&table->cls, | |
1211 | s->prefix_fields, s->n_prefix_fields); | |
1212 | ||
06f81620 | 1213 | fat_rwlock_unlock(&table->cls.rwlock); |
254750ce BP |
1214 | } |
1215 | \f | |
81e2083f BP |
1216 | bool |
1217 | ofproto_has_snoops(const struct ofproto *ofproto) | |
1218 | { | |
1219 | return connmgr_has_snoops(ofproto->connmgr); | |
1220 | } | |
1221 | ||
064af421 | 1222 | void |
81e2083f | 1223 | ofproto_get_snoops(const struct ofproto *ofproto, struct sset *snoops) |
064af421 | 1224 | { |
19a87e36 | 1225 | connmgr_get_snoops(ofproto->connmgr, snoops); |
064af421 BP |
1226 | } |
1227 | ||
15aaf599 | 1228 | static void |
ad9ca2fc BP |
1229 | ofproto_rule_delete__(struct ofproto *ofproto, struct rule *rule, |
1230 | uint8_t reason) | |
15aaf599 BP |
1231 | OVS_REQUIRES(ofproto_mutex) |
1232 | { | |
1233 | struct ofopgroup *group; | |
1234 | ||
1235 | ovs_assert(!rule->pending); | |
15aaf599 BP |
1236 | |
1237 | group = ofopgroup_create_unattached(ofproto); | |
ad9ca2fc | 1238 | delete_flow__(rule, group, reason); |
15aaf599 BP |
1239 | ofopgroup_submit(group); |
1240 | } | |
1241 | ||
a73fcd71 | 1242 | /* Deletes 'rule' from 'ofproto'. |
8037acb4 | 1243 | * |
b74cb5d8 BP |
1244 | * Within an ofproto implementation, this function allows an ofproto |
1245 | * implementation to destroy any rules that remain when its ->destruct() | |
1246 | * function is called. This function is not suitable for use elsewhere in an | |
1247 | * ofproto implementation. | |
1248 | * | |
b74cb5d8 | 1249 | * This function implements steps 4.4 and 4.5 in the section titled "Rule Life |
8b81d1ef | 1250 | * Cycle" in ofproto-provider.h. */ |
b74cb5d8 | 1251 | void |
8b81d1ef | 1252 | ofproto_rule_delete(struct ofproto *ofproto, struct rule *rule) |
15aaf599 | 1253 | OVS_EXCLUDED(ofproto_mutex) |
7ee20df1 | 1254 | { |
7ee20df1 | 1255 | struct ofopgroup *group; |
8037acb4 | 1256 | |
15aaf599 | 1257 | ovs_mutex_lock(&ofproto_mutex); |
8037acb4 | 1258 | ovs_assert(!rule->pending); |
8037acb4 BP |
1259 | |
1260 | group = ofopgroup_create_unattached(ofproto); | |
1261 | ofoperation_create(group, rule, OFOPERATION_DELETE, OFPRR_DELETE); | |
8b81d1ef | 1262 | oftable_remove_rule__(ofproto, rule); |
8037acb4 BP |
1263 | ofproto->ofproto_class->rule_delete(rule); |
1264 | ofopgroup_submit(group); | |
15aaf599 BP |
1265 | |
1266 | ovs_mutex_unlock(&ofproto_mutex); | |
8037acb4 BP |
1267 | } |
1268 | ||
1269 | static void | |
1270 | ofproto_flush__(struct ofproto *ofproto) | |
15aaf599 | 1271 | OVS_EXCLUDED(ofproto_mutex) |
8037acb4 | 1272 | { |
d0918789 | 1273 | struct oftable *table; |
7ee20df1 BP |
1274 | |
1275 | if (ofproto->ofproto_class->flush) { | |
1276 | ofproto->ofproto_class->flush(ofproto); | |
1277 | } | |
1278 | ||
15aaf599 | 1279 | ovs_mutex_lock(&ofproto_mutex); |
b772ded8 | 1280 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
7ee20df1 BP |
1281 | struct rule *rule, *next_rule; |
1282 | struct cls_cursor cursor; | |
1283 | ||
5c67e4af BP |
1284 | if (table->flags & OFTABLE_HIDDEN) { |
1285 | continue; | |
1286 | } | |
1287 | ||
06f81620 | 1288 | fat_rwlock_rdlock(&table->cls.rwlock); |
d0918789 | 1289 | cls_cursor_init(&cursor, &table->cls, NULL); |
06f81620 | 1290 | fat_rwlock_unlock(&table->cls.rwlock); |
7ee20df1 BP |
1291 | CLS_CURSOR_FOR_EACH_SAFE (rule, next_rule, cr, &cursor) { |
1292 | if (!rule->pending) { | |
ad9ca2fc | 1293 | ofproto_rule_delete__(ofproto, rule, OFPRR_DELETE); |
7ee20df1 BP |
1294 | } |
1295 | } | |
1296 | } | |
15aaf599 | 1297 | ovs_mutex_unlock(&ofproto_mutex); |
7ee20df1 BP |
1298 | } |
1299 | ||
7395c052 NZ |
1300 | static void delete_group(struct ofproto *ofproto, uint32_t group_id); |
1301 | ||
abe529af BP |
1302 | static void |
1303 | ofproto_destroy__(struct ofproto *ofproto) | |
15aaf599 | 1304 | OVS_EXCLUDED(ofproto_mutex) |
abe529af | 1305 | { |
d0918789 | 1306 | struct oftable *table; |
6c1491fb | 1307 | |
cb22974d | 1308 | ovs_assert(list_is_empty(&ofproto->pending)); |
7ee20df1 | 1309 | |
35412852 | 1310 | destroy_rule_executes(ofproto); |
7395c052 | 1311 | delete_group(ofproto, OFPG_ALL); |
5c09b672 GS |
1312 | |
1313 | guarded_list_destroy(&ofproto->rule_executes); | |
7395c052 NZ |
1314 | ovs_rwlock_destroy(&ofproto->groups_rwlock); |
1315 | hmap_destroy(&ofproto->groups); | |
1316 | ||
abe529af | 1317 | connmgr_destroy(ofproto->connmgr); |
fa066f01 | 1318 | |
abe529af BP |
1319 | hmap_remove(&all_ofprotos, &ofproto->hmap_node); |
1320 | free(ofproto->name); | |
955a7127 | 1321 | free(ofproto->type); |
abe529af BP |
1322 | free(ofproto->mfr_desc); |
1323 | free(ofproto->hw_desc); | |
1324 | free(ofproto->sw_desc); | |
1325 | free(ofproto->serial_desc); | |
1326 | free(ofproto->dp_desc); | |
abe529af | 1327 | hmap_destroy(&ofproto->ports); |
fdcea803 | 1328 | hmap_destroy(&ofproto->ofport_usage); |
abe529af | 1329 | shash_destroy(&ofproto->port_by_name); |
e1b1d06a | 1330 | simap_destroy(&ofproto->ofp_requests); |
6c1491fb | 1331 | |
b772ded8 | 1332 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
d0918789 | 1333 | oftable_destroy(table); |
6c1491fb BP |
1334 | } |
1335 | free(ofproto->tables); | |
fa066f01 | 1336 | |
7ee20df1 BP |
1337 | hmap_destroy(&ofproto->deletions); |
1338 | ||
52a90c29 BP |
1339 | free(ofproto->vlan_bitmap); |
1340 | ||
abe529af BP |
1341 | ofproto->ofproto_class->dealloc(ofproto); |
1342 | } | |
fa066f01 | 1343 | |
064af421 BP |
1344 | void |
1345 | ofproto_destroy(struct ofproto *p) | |
15aaf599 | 1346 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 1347 | { |
ca0f572c | 1348 | struct ofport *ofport, *next_ofport; |
fdcea803 | 1349 | struct ofport_usage *usage, *next_usage; |
064af421 BP |
1350 | |
1351 | if (!p) { | |
1352 | return; | |
1353 | } | |
1354 | ||
717de9ff JR |
1355 | if (p->meters) { |
1356 | meter_delete(p, 1, p->meter_features.max_meters); | |
1357 | p->meter_features.max_meters = 0; | |
1358 | free(p->meters); | |
1359 | p->meters = NULL; | |
1360 | } | |
1361 | ||
7ee20df1 | 1362 | ofproto_flush__(p); |
4e8e4213 | 1363 | HMAP_FOR_EACH_SAFE (ofport, next_ofport, hmap_node, &p->ports) { |
abe529af | 1364 | ofport_destroy(ofport); |
064af421 | 1365 | } |
064af421 | 1366 | |
fdcea803 GS |
1367 | HMAP_FOR_EACH_SAFE (usage, next_usage, hmap_node, &p->ofport_usage) { |
1368 | hmap_remove(&p->ofport_usage, &usage->hmap_node); | |
1369 | free(usage); | |
1370 | } | |
1371 | ||
abe529af | 1372 | p->ofproto_class->destruct(p); |
f416c8d6 JR |
1373 | /* Destroying rules is deferred, must have 'ofproto' around for them. */ |
1374 | ovsrcu_postpone(ofproto_destroy__, p); | |
064af421 BP |
1375 | } |
1376 | ||
abe529af BP |
1377 | /* Destroys the datapath with the respective 'name' and 'type'. With the Linux |
1378 | * kernel datapath, for example, this destroys the datapath in the kernel, and | |
1379 | * with the netdev-based datapath, it tears down the data structures that | |
1380 | * represent the datapath. | |
1381 | * | |
1382 | * The datapath should not be currently open as an ofproto. */ | |
064af421 | 1383 | int |
abe529af | 1384 | ofproto_delete(const char *name, const char *type) |
064af421 | 1385 | { |
abe529af BP |
1386 | const struct ofproto_class *class = ofproto_class_find__(type); |
1387 | return (!class ? EAFNOSUPPORT | |
1388 | : !class->del ? EACCES | |
1389 | : class->del(type, name)); | |
064af421 BP |
1390 | } |
1391 | ||
e9e28be3 BP |
1392 | static void |
1393 | process_port_change(struct ofproto *ofproto, int error, char *devname) | |
1394 | { | |
1395 | if (error == ENOBUFS) { | |
1396 | reinit_ports(ofproto); | |
1397 | } else if (!error) { | |
1398 | update_port(ofproto, devname); | |
1399 | free(devname); | |
1400 | } | |
1401 | } | |
1402 | ||
11a574a7 JP |
1403 | int |
1404 | ofproto_type_run(const char *datapath_type) | |
1405 | { | |
1406 | const struct ofproto_class *class; | |
1407 | int error; | |
1408 | ||
1409 | datapath_type = ofproto_normalize_type(datapath_type); | |
1410 | class = ofproto_class_find__(datapath_type); | |
1411 | ||
1412 | error = class->type_run ? class->type_run(datapath_type) : 0; | |
1413 | if (error && error != EAGAIN) { | |
1414 | VLOG_ERR_RL(&rl, "%s: type_run failed (%s)", | |
10a89ef0 | 1415 | datapath_type, ovs_strerror(error)); |
11a574a7 JP |
1416 | } |
1417 | return error; | |
1418 | } | |
1419 | ||
11a574a7 JP |
1420 | void |
1421 | ofproto_type_wait(const char *datapath_type) | |
1422 | { | |
1423 | const struct ofproto_class *class; | |
1424 | ||
1425 | datapath_type = ofproto_normalize_type(datapath_type); | |
1426 | class = ofproto_class_find__(datapath_type); | |
1427 | ||
1428 | if (class->type_wait) { | |
1429 | class->type_wait(datapath_type); | |
1430 | } | |
1431 | } | |
1432 | ||
06b79a9a BP |
1433 | static bool |
1434 | any_pending_ops(const struct ofproto *p) | |
15aaf599 | 1435 | OVS_EXCLUDED(ofproto_mutex) |
06b79a9a | 1436 | { |
15aaf599 BP |
1437 | bool b; |
1438 | ||
1439 | ovs_mutex_lock(&ofproto_mutex); | |
1440 | b = !list_is_empty(&p->pending); | |
1441 | ovs_mutex_unlock(&ofproto_mutex); | |
1442 | ||
1443 | return b; | |
06b79a9a BP |
1444 | } |
1445 | ||
064af421 | 1446 | int |
abe529af | 1447 | ofproto_run(struct ofproto *p) |
064af421 | 1448 | { |
064af421 | 1449 | int error; |
da4a6191 | 1450 | uint64_t new_seq; |
064af421 | 1451 | |
abe529af | 1452 | error = p->ofproto_class->run(p); |
5fcc0d00 | 1453 | if (error && error != EAGAIN) { |
10a89ef0 | 1454 | VLOG_ERR_RL(&rl, "%s: run failed (%s)", p->name, ovs_strerror(error)); |
149f577a JG |
1455 | } |
1456 | ||
35412852 BP |
1457 | run_rule_executes(p); |
1458 | ||
448c2fa8 EJ |
1459 | /* Restore the eviction group heap invariant occasionally. */ |
1460 | if (p->eviction_group_timer < time_msec()) { | |
1461 | size_t i; | |
1462 | ||
1463 | p->eviction_group_timer = time_msec() + 1000; | |
1464 | ||
1465 | for (i = 0; i < p->n_tables; i++) { | |
1466 | struct oftable *table = &p->tables[i]; | |
1467 | struct eviction_group *evg; | |
1468 | struct cls_cursor cursor; | |
448c2fa8 EJ |
1469 | struct rule *rule; |
1470 | ||
1471 | if (!table->eviction_fields) { | |
1472 | continue; | |
1473 | } | |
1474 | ||
15aaf599 | 1475 | ovs_mutex_lock(&ofproto_mutex); |
06f81620 | 1476 | fat_rwlock_rdlock(&table->cls.rwlock); |
c4ea31b1 | 1477 | cls_cursor_init(&cursor, &table->cls, NULL); |
448c2fa8 | 1478 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { |
6d56c1f1 K |
1479 | if (rule->idle_timeout || rule->hard_timeout) { |
1480 | if (!rule->eviction_group) { | |
1481 | eviction_group_add_rule(rule); | |
1482 | } else { | |
1483 | heap_raw_change(&rule->evg_node, | |
1484 | rule_eviction_priority(p, rule)); | |
1485 | } | |
448c2fa8 EJ |
1486 | } |
1487 | } | |
06f81620 | 1488 | fat_rwlock_unlock(&table->cls.rwlock); |
6d56c1f1 K |
1489 | |
1490 | HEAP_FOR_EACH (evg, size_node, &table->eviction_groups_by_size) { | |
1491 | heap_rebuild(&evg->rules); | |
1492 | } | |
15aaf599 | 1493 | ovs_mutex_unlock(&ofproto_mutex); |
448c2fa8 EJ |
1494 | } |
1495 | } | |
1496 | ||
5bf0e941 | 1497 | if (p->ofproto_class->port_poll) { |
7436ed80 BP |
1498 | char *devname; |
1499 | ||
5bf0e941 BP |
1500 | while ((error = p->ofproto_class->port_poll(p, &devname)) != EAGAIN) { |
1501 | process_port_change(p, error, devname); | |
064af421 | 1502 | } |
e9e28be3 | 1503 | } |
031d8bff | 1504 | |
da4a6191 JS |
1505 | new_seq = seq_read(connectivity_seq_get()); |
1506 | if (new_seq != p->change_seq) { | |
1507 | struct sset devnames; | |
1508 | const char *devname; | |
1509 | struct ofport *ofport; | |
1510 | ||
1511 | /* Update OpenFlow port status for any port whose netdev has changed. | |
1512 | * | |
1513 | * Refreshing a given 'ofport' can cause an arbitrary ofport to be | |
1514 | * destroyed, so it's not safe to update ports directly from the | |
1515 | * HMAP_FOR_EACH loop, or even to use HMAP_FOR_EACH_SAFE. Instead, we | |
1516 | * need this two-phase approach. */ | |
1517 | sset_init(&devnames); | |
1518 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
61501798 AW |
1519 | uint64_t port_change_seq; |
1520 | ||
1521 | port_change_seq = netdev_get_change_seq(ofport->netdev); | |
1522 | if (ofport->change_seq != port_change_seq) { | |
1523 | ofport->change_seq = port_change_seq; | |
1524 | sset_add(&devnames, netdev_get_name(ofport->netdev)); | |
1525 | } | |
031d8bff | 1526 | } |
da4a6191 JS |
1527 | SSET_FOR_EACH (devname, &devnames) { |
1528 | update_port(p, devname); | |
1529 | } | |
1530 | sset_destroy(&devnames); | |
1531 | ||
1532 | p->change_seq = new_seq; | |
064af421 BP |
1533 | } |
1534 | ||
7ee20df1 BP |
1535 | switch (p->state) { |
1536 | case S_OPENFLOW: | |
1537 | connmgr_run(p->connmgr, handle_openflow); | |
1538 | break; | |
1539 | ||
254750ce BP |
1540 | case S_EVICT: |
1541 | connmgr_run(p->connmgr, NULL); | |
1542 | ofproto_evict(p); | |
06b79a9a | 1543 | if (!any_pending_ops(p)) { |
254750ce BP |
1544 | p->state = S_OPENFLOW; |
1545 | } | |
1546 | break; | |
1547 | ||
7ee20df1 BP |
1548 | case S_FLUSH: |
1549 | connmgr_run(p->connmgr, NULL); | |
1550 | ofproto_flush__(p); | |
06b79a9a | 1551 | if (!any_pending_ops(p)) { |
7ee20df1 BP |
1552 | connmgr_flushed(p->connmgr); |
1553 | p->state = S_OPENFLOW; | |
1554 | } | |
1555 | break; | |
1556 | ||
1557 | default: | |
428b2edd | 1558 | OVS_NOT_REACHED(); |
7ee20df1 | 1559 | } |
064af421 | 1560 | |
5fcc0d00 BP |
1561 | return error; |
1562 | } | |
1563 | ||
064af421 BP |
1564 | void |
1565 | ofproto_wait(struct ofproto *p) | |
1566 | { | |
abe529af | 1567 | p->ofproto_class->wait(p); |
5bf0e941 BP |
1568 | if (p->ofproto_class->port_poll_wait) { |
1569 | p->ofproto_class->port_poll_wait(p); | |
e7934396 | 1570 | } |
da4a6191 | 1571 | seq_wait(connectivity_seq_get(), p->change_seq); |
7ee20df1 BP |
1572 | |
1573 | switch (p->state) { | |
1574 | case S_OPENFLOW: | |
1575 | connmgr_wait(p->connmgr, true); | |
1576 | break; | |
1577 | ||
254750ce | 1578 | case S_EVICT: |
7ee20df1 BP |
1579 | case S_FLUSH: |
1580 | connmgr_wait(p->connmgr, false); | |
06b79a9a | 1581 | if (!any_pending_ops(p)) { |
7ee20df1 BP |
1582 | poll_immediate_wake(); |
1583 | } | |
1584 | break; | |
1585 | } | |
064af421 BP |
1586 | } |
1587 | ||
064af421 BP |
1588 | bool |
1589 | ofproto_is_alive(const struct ofproto *p) | |
1590 | { | |
19a87e36 | 1591 | return connmgr_has_controllers(p->connmgr); |
064af421 BP |
1592 | } |
1593 | ||
0d085684 BP |
1594 | /* Adds some memory usage statistics for 'ofproto' into 'usage', for use with |
1595 | * memory_report(). */ | |
1596 | void | |
1597 | ofproto_get_memory_usage(const struct ofproto *ofproto, struct simap *usage) | |
1598 | { | |
1599 | const struct oftable *table; | |
1600 | unsigned int n_rules; | |
1601 | ||
1602 | simap_increase(usage, "ports", hmap_count(&ofproto->ports)); | |
15aaf599 BP |
1603 | |
1604 | ovs_mutex_lock(&ofproto_mutex); | |
0d085684 BP |
1605 | simap_increase(usage, "ops", |
1606 | ofproto->n_pending + hmap_count(&ofproto->deletions)); | |
15aaf599 | 1607 | ovs_mutex_unlock(&ofproto_mutex); |
0d085684 BP |
1608 | |
1609 | n_rules = 0; | |
1610 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { | |
06f81620 | 1611 | fat_rwlock_rdlock(&table->cls.rwlock); |
0d085684 | 1612 | n_rules += classifier_count(&table->cls); |
06f81620 | 1613 | fat_rwlock_unlock(&table->cls.rwlock); |
0d085684 BP |
1614 | } |
1615 | simap_increase(usage, "rules", n_rules); | |
1616 | ||
1617 | if (ofproto->ofproto_class->get_memory_usage) { | |
1618 | ofproto->ofproto_class->get_memory_usage(ofproto, usage); | |
1619 | } | |
1620 | ||
1621 | connmgr_get_memory_usage(ofproto->connmgr, usage); | |
1622 | } | |
1623 | ||
1c030aa5 EJ |
1624 | void |
1625 | ofproto_type_get_memory_usage(const char *datapath_type, struct simap *usage) | |
1626 | { | |
1627 | const struct ofproto_class *class; | |
1628 | ||
1629 | datapath_type = ofproto_normalize_type(datapath_type); | |
1630 | class = ofproto_class_find__(datapath_type); | |
1631 | ||
1632 | if (class && class->type_get_memory_usage) { | |
1633 | class->type_get_memory_usage(datapath_type, usage); | |
1634 | } | |
1635 | } | |
1636 | ||
bffc0589 | 1637 | void |
2cdcb898 | 1638 | ofproto_get_ofproto_controller_info(const struct ofproto *ofproto, |
bffc0589 AE |
1639 | struct shash *info) |
1640 | { | |
19a87e36 | 1641 | connmgr_get_controller_info(ofproto->connmgr, info); |
bffc0589 AE |
1642 | } |
1643 | ||
1644 | void | |
1645 | ofproto_free_ofproto_controller_info(struct shash *info) | |
1646 | { | |
72ba2ed3 | 1647 | connmgr_free_controller_info(info); |
bffc0589 AE |
1648 | } |
1649 | ||
b5827b24 BP |
1650 | /* Makes a deep copy of 'old' into 'port'. */ |
1651 | void | |
1652 | ofproto_port_clone(struct ofproto_port *port, const struct ofproto_port *old) | |
1653 | { | |
1654 | port->name = xstrdup(old->name); | |
1655 | port->type = xstrdup(old->type); | |
1656 | port->ofp_port = old->ofp_port; | |
1657 | } | |
1658 | ||
1659 | /* Frees memory allocated to members of 'ofproto_port'. | |
3a6ccc8c | 1660 | * |
b5827b24 BP |
1661 | * Do not call this function on an ofproto_port obtained from |
1662 | * ofproto_port_dump_next(): that function retains ownership of the data in the | |
1663 | * ofproto_port. */ | |
1664 | void | |
1665 | ofproto_port_destroy(struct ofproto_port *ofproto_port) | |
1666 | { | |
1667 | free(ofproto_port->name); | |
1668 | free(ofproto_port->type); | |
1669 | } | |
1670 | ||
b5827b24 | 1671 | /* Initializes 'dump' to begin dumping the ports in an ofproto. |
3a6ccc8c | 1672 | * |
b5827b24 BP |
1673 | * This function provides no status indication. An error status for the entire |
1674 | * dump operation is provided when it is completed by calling | |
1675 | * ofproto_port_dump_done(). | |
1676 | */ | |
1677 | void | |
1678 | ofproto_port_dump_start(struct ofproto_port_dump *dump, | |
1679 | const struct ofproto *ofproto) | |
1680 | { | |
abe529af BP |
1681 | dump->ofproto = ofproto; |
1682 | dump->error = ofproto->ofproto_class->port_dump_start(ofproto, | |
1683 | &dump->state); | |
b5827b24 BP |
1684 | } |
1685 | ||
1686 | /* Attempts to retrieve another port from 'dump', which must have been created | |
1687 | * with ofproto_port_dump_start(). On success, stores a new ofproto_port into | |
1688 | * 'port' and returns true. On failure, returns false. | |
1689 | * | |
1690 | * Failure might indicate an actual error or merely that the last port has been | |
1691 | * dumped. An error status for the entire dump operation is provided when it | |
1692 | * is completed by calling ofproto_port_dump_done(). | |
1693 | * | |
1694 | * The ofproto owns the data stored in 'port'. It will remain valid until at | |
1695 | * least the next time 'dump' is passed to ofproto_port_dump_next() or | |
1696 | * ofproto_port_dump_done(). */ | |
1697 | bool | |
1698 | ofproto_port_dump_next(struct ofproto_port_dump *dump, | |
1699 | struct ofproto_port *port) | |
1700 | { | |
abe529af BP |
1701 | const struct ofproto *ofproto = dump->ofproto; |
1702 | ||
1703 | if (dump->error) { | |
1704 | return false; | |
1705 | } | |
b5827b24 | 1706 | |
abe529af BP |
1707 | dump->error = ofproto->ofproto_class->port_dump_next(ofproto, dump->state, |
1708 | port); | |
1709 | if (dump->error) { | |
1710 | ofproto->ofproto_class->port_dump_done(ofproto, dump->state); | |
1711 | return false; | |
b5827b24 | 1712 | } |
abe529af | 1713 | return true; |
b5827b24 BP |
1714 | } |
1715 | ||
1716 | /* Completes port table dump operation 'dump', which must have been created | |
1717 | * with ofproto_port_dump_start(). Returns 0 if the dump operation was | |
1718 | * error-free, otherwise a positive errno value describing the problem. */ | |
3a6ccc8c | 1719 | int |
b5827b24 | 1720 | ofproto_port_dump_done(struct ofproto_port_dump *dump) |
3a6ccc8c | 1721 | { |
abe529af BP |
1722 | const struct ofproto *ofproto = dump->ofproto; |
1723 | if (!dump->error) { | |
1724 | dump->error = ofproto->ofproto_class->port_dump_done(ofproto, | |
1725 | dump->state); | |
1726 | } | |
1727 | return dump->error == EOF ? 0 : dump->error; | |
b5827b24 BP |
1728 | } |
1729 | ||
0aeaabc8 JP |
1730 | /* Returns the type to pass to netdev_open() when a datapath of type |
1731 | * 'datapath_type' has a port of type 'port_type', for a few special | |
1732 | * cases when a netdev type differs from a port type. For example, when | |
1733 | * using the userspace datapath, a port of type "internal" needs to be | |
1734 | * opened as "tap". | |
1735 | * | |
1736 | * Returns either 'type' itself or a string literal, which must not be | |
1737 | * freed. */ | |
1738 | const char * | |
1739 | ofproto_port_open_type(const char *datapath_type, const char *port_type) | |
1740 | { | |
1741 | const struct ofproto_class *class; | |
1742 | ||
1743 | datapath_type = ofproto_normalize_type(datapath_type); | |
1744 | class = ofproto_class_find__(datapath_type); | |
1745 | if (!class) { | |
1746 | return port_type; | |
1747 | } | |
1748 | ||
1749 | return (class->port_open_type | |
1750 | ? class->port_open_type(datapath_type, port_type) | |
1751 | : port_type); | |
1752 | } | |
1753 | ||
81816a5f JP |
1754 | /* Attempts to add 'netdev' as a port on 'ofproto'. If 'ofp_portp' is |
1755 | * non-null and '*ofp_portp' is not OFPP_NONE, attempts to use that as | |
1756 | * the port's OpenFlow port number. | |
1757 | * | |
1758 | * If successful, returns 0 and sets '*ofp_portp' to the new port's | |
1759 | * OpenFlow port number (if 'ofp_portp' is non-null). On failure, | |
1760 | * returns a positive errno value and sets '*ofp_portp' to OFPP_NONE (if | |
1761 | * 'ofp_portp' is non-null). */ | |
b5827b24 BP |
1762 | int |
1763 | ofproto_port_add(struct ofproto *ofproto, struct netdev *netdev, | |
4e022ec0 | 1764 | ofp_port_t *ofp_portp) |
b5827b24 | 1765 | { |
4e022ec0 | 1766 | ofp_port_t ofp_port = ofp_portp ? *ofp_portp : OFPP_NONE; |
3a6ccc8c BP |
1767 | int error; |
1768 | ||
e1b1d06a | 1769 | error = ofproto->ofproto_class->port_add(ofproto, netdev); |
1fa24dea | 1770 | if (!error) { |
e1b1d06a JP |
1771 | const char *netdev_name = netdev_get_name(netdev); |
1772 | ||
4e022ec0 AW |
1773 | simap_put(&ofproto->ofp_requests, netdev_name, |
1774 | ofp_to_u16(ofp_port)); | |
e1b1d06a | 1775 | update_port(ofproto, netdev_name); |
1fa24dea | 1776 | } |
b5827b24 | 1777 | if (ofp_portp) { |
17f69db5 BP |
1778 | *ofp_portp = OFPP_NONE; |
1779 | if (!error) { | |
1780 | struct ofproto_port ofproto_port; | |
1781 | ||
1782 | error = ofproto_port_query_by_name(ofproto, | |
1783 | netdev_get_name(netdev), | |
1784 | &ofproto_port); | |
1785 | if (!error) { | |
1786 | *ofp_portp = ofproto_port.ofp_port; | |
1787 | ofproto_port_destroy(&ofproto_port); | |
1788 | } | |
1789 | } | |
3a6ccc8c BP |
1790 | } |
1791 | return error; | |
1792 | } | |
1793 | ||
b5827b24 BP |
1794 | /* Looks up a port named 'devname' in 'ofproto'. On success, returns 0 and |
1795 | * initializes '*port' appropriately; on failure, returns a positive errno | |
1796 | * value. | |
1797 | * | |
abe529af | 1798 | * The caller owns the data in 'ofproto_port' and must free it with |
b5827b24 BP |
1799 | * ofproto_port_destroy() when it is no longer needed. */ |
1800 | int | |
1801 | ofproto_port_query_by_name(const struct ofproto *ofproto, const char *devname, | |
1802 | struct ofproto_port *port) | |
a4e2e1f2 | 1803 | { |
b5827b24 BP |
1804 | int error; |
1805 | ||
abe529af BP |
1806 | error = ofproto->ofproto_class->port_query_by_name(ofproto, devname, port); |
1807 | if (error) { | |
1808 | memset(port, 0, sizeof *port); | |
b5827b24 BP |
1809 | } |
1810 | return error; | |
a4e2e1f2 EJ |
1811 | } |
1812 | ||
b5827b24 | 1813 | /* Deletes port number 'ofp_port' from the datapath for 'ofproto'. |
3a6ccc8c | 1814 | * Returns 0 if successful, otherwise a positive errno. */ |
064af421 | 1815 | int |
4e022ec0 | 1816 | ofproto_port_del(struct ofproto *ofproto, ofp_port_t ofp_port) |
064af421 | 1817 | { |
abe529af | 1818 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); |
1264ec95 | 1819 | const char *name = ofport ? netdev_get_name(ofport->netdev) : "<unknown>"; |
e1b1d06a | 1820 | struct simap_node *ofp_request_node; |
3cf10406 | 1821 | int error; |
cdee00fd | 1822 | |
e1b1d06a JP |
1823 | ofp_request_node = simap_find(&ofproto->ofp_requests, name); |
1824 | if (ofp_request_node) { | |
1825 | simap_delete(&ofproto->ofp_requests, ofp_request_node); | |
1826 | } | |
1827 | ||
abe529af | 1828 | error = ofproto->ofproto_class->port_del(ofproto, ofp_port); |
892815f5 | 1829 | if (!error && ofport) { |
1264ec95 BP |
1830 | /* 'name' is the netdev's name and update_port() is going to close the |
1831 | * netdev. Just in case update_port() refers to 'name' after it | |
3a6ccc8c BP |
1832 | * destroys 'ofport', make a copy of it around the update_port() |
1833 | * call. */ | |
1834 | char *devname = xstrdup(name); | |
1835 | update_port(ofproto, devname); | |
1836 | free(devname); | |
3cf10406 BP |
1837 | } |
1838 | return error; | |
064af421 BP |
1839 | } |
1840 | ||
276f6518 SH |
1841 | static void |
1842 | flow_mod_init(struct ofputil_flow_mod *fm, | |
1843 | const struct match *match, unsigned int priority, | |
1844 | const struct ofpact *ofpacts, size_t ofpacts_len, | |
1845 | enum ofp_flow_mod_command command) | |
1846 | { | |
1847 | memset(fm, 0, sizeof *fm); | |
1848 | fm->match = *match; | |
1849 | fm->priority = priority; | |
1850 | fm->cookie = 0; | |
1851 | fm->new_cookie = 0; | |
1852 | fm->modify_cookie = false; | |
1853 | fm->table_id = 0; | |
1854 | fm->command = command; | |
1855 | fm->idle_timeout = 0; | |
1856 | fm->hard_timeout = 0; | |
1857 | fm->buffer_id = UINT32_MAX; | |
1858 | fm->out_port = OFPP_ANY; | |
1859 | fm->out_group = OFPG_ANY; | |
1860 | fm->flags = 0; | |
1861 | fm->ofpacts = CONST_CAST(struct ofpact *, ofpacts); | |
1862 | fm->ofpacts_len = ofpacts_len; | |
1863 | } | |
1864 | ||
97f63e57 BP |
1865 | static int |
1866 | simple_flow_mod(struct ofproto *ofproto, | |
1867 | const struct match *match, unsigned int priority, | |
1868 | const struct ofpact *ofpacts, size_t ofpacts_len, | |
1869 | enum ofp_flow_mod_command command) | |
1870 | { | |
1871 | struct ofputil_flow_mod fm; | |
1872 | ||
276f6518 | 1873 | flow_mod_init(&fm, match, priority, ofpacts, ofpacts_len, command); |
15aaf599 | 1874 | |
97f63e57 BP |
1875 | return handle_flow_mod__(ofproto, NULL, &fm, NULL); |
1876 | } | |
1877 | ||
6c1491fb | 1878 | /* Adds a flow to OpenFlow flow table 0 in 'p' that matches 'cls_rule' and |
fa8b054f BP |
1879 | * performs the 'n_actions' actions in 'actions'. The new flow will not |
1880 | * timeout. | |
1881 | * | |
1882 | * If cls_rule->priority is in the range of priorities supported by OpenFlow | |
1883 | * (0...65535, inclusive) then the flow will be visible to OpenFlow | |
1884 | * controllers; otherwise, it will be hidden. | |
1885 | * | |
f25d0cf3 | 1886 | * The caller retains ownership of 'cls_rule' and 'ofpacts'. |
6c1491fb BP |
1887 | * |
1888 | * This is a helper function for in-band control and fail-open. */ | |
064af421 | 1889 | void |
81a76618 BP |
1890 | ofproto_add_flow(struct ofproto *ofproto, const struct match *match, |
1891 | unsigned int priority, | |
f25d0cf3 | 1892 | const struct ofpact *ofpacts, size_t ofpacts_len) |
15aaf599 | 1893 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 1894 | { |
7ee20df1 | 1895 | const struct rule *rule; |
6f00e29b | 1896 | bool must_add; |
7ee20df1 | 1897 | |
97f63e57 BP |
1898 | /* First do a cheap check whether the rule we're looking for already exists |
1899 | * with the actions that we want. If it does, then we're done. */ | |
06f81620 | 1900 | fat_rwlock_rdlock(&ofproto->tables[0].cls.rwlock); |
81a76618 BP |
1901 | rule = rule_from_cls_rule(classifier_find_match_exactly( |
1902 | &ofproto->tables[0].cls, match, priority)); | |
6f00e29b | 1903 | if (rule) { |
dc723c44 | 1904 | const struct rule_actions *actions = rule_get_actions(rule); |
06a0f3e2 | 1905 | must_add = !ofpacts_equal(actions->ofpacts, actions->ofpacts_len, |
6f00e29b | 1906 | ofpacts, ofpacts_len); |
6f00e29b BP |
1907 | } else { |
1908 | must_add = true; | |
1909 | } | |
06f81620 | 1910 | fat_rwlock_unlock(&ofproto->tables[0].cls.rwlock); |
97f63e57 BP |
1911 | |
1912 | /* If there's no such rule or the rule doesn't have the actions we want, | |
1913 | * fall back to a executing a full flow mod. We can't optimize this at | |
1914 | * all because we didn't take enough locks above to ensure that the flow | |
1915 | * table didn't already change beneath us. */ | |
6f00e29b | 1916 | if (must_add) { |
97f63e57 BP |
1917 | simple_flow_mod(ofproto, match, priority, ofpacts, ofpacts_len, |
1918 | OFPFC_MODIFY_STRICT); | |
7ee20df1 | 1919 | } |
064af421 BP |
1920 | } |
1921 | ||
75a75043 | 1922 | /* Executes the flow modification specified in 'fm'. Returns 0 on success, an |
90bf1e07 BP |
1923 | * OFPERR_* OpenFlow error code on failure, or OFPROTO_POSTPONE if the |
1924 | * operation cannot be initiated now but may be retried later. | |
75a75043 | 1925 | * |
1b63b91e BP |
1926 | * This is a helper function for in-band control and fail-open and the "learn" |
1927 | * action. */ | |
75a75043 | 1928 | int |
e3b56933 | 1929 | ofproto_flow_mod(struct ofproto *ofproto, struct ofputil_flow_mod *fm) |
15aaf599 | 1930 | OVS_EXCLUDED(ofproto_mutex) |
75a75043 | 1931 | { |
b90d6ee5 JR |
1932 | /* Optimize for the most common case of a repeated learn action. |
1933 | * If an identical flow already exists we only need to update its | |
1934 | * 'modified' time. */ | |
1935 | if (fm->command == OFPFC_MODIFY_STRICT && fm->table_id != OFPTT_ALL | |
1936 | && !(fm->flags & OFPUTIL_FF_RESET_COUNTS)) { | |
1937 | struct oftable *table = &ofproto->tables[fm->table_id]; | |
b90d6ee5 JR |
1938 | struct rule *rule; |
1939 | bool done = false; | |
1940 | ||
b90d6ee5 | 1941 | fat_rwlock_rdlock(&table->cls.rwlock); |
0ef165ec EJ |
1942 | rule = rule_from_cls_rule(classifier_find_match_exactly(&table->cls, |
1943 | &fm->match, | |
1944 | fm->priority)); | |
b90d6ee5 JR |
1945 | if (rule) { |
1946 | /* Reading many of the rule fields and writing on 'modified' | |
1947 | * requires the rule->mutex. Also, rule->actions may change | |
1948 | * if rule->mutex is not held. */ | |
06a0f3e2 BP |
1949 | const struct rule_actions *actions; |
1950 | ||
b90d6ee5 | 1951 | ovs_mutex_lock(&rule->mutex); |
06a0f3e2 | 1952 | actions = rule_get_actions(rule); |
b90d6ee5 JR |
1953 | if (rule->idle_timeout == fm->idle_timeout |
1954 | && rule->hard_timeout == fm->hard_timeout | |
1955 | && rule->flags == (fm->flags & OFPUTIL_FF_STATE) | |
1956 | && (!fm->modify_cookie || (fm->new_cookie == rule->flow_cookie)) | |
1957 | && ofpacts_equal(fm->ofpacts, fm->ofpacts_len, | |
06a0f3e2 | 1958 | actions->ofpacts, actions->ofpacts_len)) { |
b90d6ee5 JR |
1959 | /* Rule already exists and need not change, only update the |
1960 | modified timestamp. */ | |
1961 | rule->modified = time_msec(); | |
1962 | done = true; | |
1963 | } | |
1964 | ovs_mutex_unlock(&rule->mutex); | |
1965 | } | |
1966 | fat_rwlock_unlock(&table->cls.rwlock); | |
1967 | ||
1968 | if (done) { | |
1969 | return 0; | |
1970 | } | |
1971 | } | |
1972 | ||
75a75043 BP |
1973 | return handle_flow_mod__(ofproto, NULL, fm, NULL); |
1974 | } | |
1975 | ||
1ebeaaa7 JS |
1976 | /* Resets the modified time for 'rule' or an equivalent rule. If 'rule' is not |
1977 | * in the classifier, but an equivalent rule is, unref 'rule' and ref the new | |
1978 | * rule. Otherwise if 'rule' is no longer installed in the classifier, | |
1979 | * reinstall it. | |
1980 | * | |
1981 | * Returns the rule whose modified time has been reset. */ | |
1982 | struct rule * | |
1983 | ofproto_refresh_rule(struct rule *rule) | |
1984 | { | |
1985 | const struct oftable *table = &rule->ofproto->tables[rule->table_id]; | |
1986 | const struct cls_rule *cr = &rule->cr; | |
1987 | struct rule *r; | |
1988 | ||
1989 | /* do_add_flow() requires that the rule is not installed. We lock the | |
1990 | * ofproto_mutex here so that another thread cannot add the flow before | |
1991 | * we get a chance to add it.*/ | |
1992 | ovs_mutex_lock(&ofproto_mutex); | |
1993 | ||
1994 | fat_rwlock_rdlock(&table->cls.rwlock); | |
1995 | r = rule_from_cls_rule(classifier_find_rule_exactly(&table->cls, cr)); | |
1996 | if (r != rule) { | |
1997 | ofproto_rule_ref(r); | |
1998 | } | |
1999 | fat_rwlock_unlock(&table->cls.rwlock); | |
2000 | ||
2001 | if (!r) { | |
2002 | do_add_flow(rule->ofproto, NULL, NULL, 0, rule); | |
2003 | } else if (r != rule) { | |
2004 | ofproto_rule_unref(rule); | |
2005 | rule = r; | |
2006 | } | |
2007 | ovs_mutex_unlock(&ofproto_mutex); | |
2008 | ||
2009 | /* Refresh the modified time for the rule. */ | |
2010 | ovs_mutex_lock(&rule->mutex); | |
2011 | rule->modified = MAX(rule->modified, time_msec()); | |
2012 | ovs_mutex_unlock(&rule->mutex); | |
2013 | ||
2014 | return rule; | |
2015 | } | |
2016 | ||
6c1491fb BP |
2017 | /* Searches for a rule with matching criteria exactly equal to 'target' in |
2018 | * ofproto's table 0 and, if it finds one, deletes it. | |
2019 | * | |
2020 | * This is a helper function for in-band control and fail-open. */ | |
7ee20df1 | 2021 | bool |
81a76618 BP |
2022 | ofproto_delete_flow(struct ofproto *ofproto, |
2023 | const struct match *target, unsigned int priority) | |
15aaf599 | 2024 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 2025 | { |
8037acb4 | 2026 | struct classifier *cls = &ofproto->tables[0].cls; |
064af421 BP |
2027 | struct rule *rule; |
2028 | ||
97f63e57 BP |
2029 | /* First do a cheap check whether the rule we're looking for has already |
2030 | * been deleted. If so, then we're done. */ | |
06f81620 | 2031 | fat_rwlock_rdlock(&cls->rwlock); |
8037acb4 BP |
2032 | rule = rule_from_cls_rule(classifier_find_match_exactly(cls, target, |
2033 | priority)); | |
06f81620 | 2034 | fat_rwlock_unlock(&cls->rwlock); |
7ee20df1 | 2035 | if (!rule) { |
7ee20df1 | 2036 | return true; |
bcf84111 | 2037 | } |
5ecc9d81 | 2038 | |
97f63e57 BP |
2039 | /* Fall back to a executing a full flow mod. We can't optimize this at all |
2040 | * because we didn't take enough locks above to ensure that the flow table | |
2041 | * didn't already change beneath us. */ | |
2042 | return simple_flow_mod(ofproto, target, priority, NULL, 0, | |
2043 | OFPFC_DELETE_STRICT) != OFPROTO_POSTPONE; | |
142e1f5c BP |
2044 | } |
2045 | ||
7ee20df1 BP |
2046 | /* Starts the process of deleting all of the flows from all of ofproto's flow |
2047 | * tables and then reintroducing the flows required by in-band control and | |
2048 | * fail-open. The process will complete in a later call to ofproto_run(). */ | |
142e1f5c BP |
2049 | void |
2050 | ofproto_flush_flows(struct ofproto *ofproto) | |
2051 | { | |
7ee20df1 BP |
2052 | COVERAGE_INC(ofproto_flush); |
2053 | ofproto->state = S_FLUSH; | |
064af421 BP |
2054 | } |
2055 | \f | |
2056 | static void | |
2057 | reinit_ports(struct ofproto *p) | |
2058 | { | |
abe529af | 2059 | struct ofproto_port_dump dump; |
b3c01ed3 | 2060 | struct sset devnames; |
064af421 | 2061 | struct ofport *ofport; |
abe529af | 2062 | struct ofproto_port ofproto_port; |
b3c01ed3 | 2063 | const char *devname; |
064af421 | 2064 | |
898bf89d JP |
2065 | COVERAGE_INC(ofproto_reinit_ports); |
2066 | ||
b3c01ed3 | 2067 | sset_init(&devnames); |
4e8e4213 | 2068 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { |
1264ec95 | 2069 | sset_add(&devnames, netdev_get_name(ofport->netdev)); |
064af421 | 2070 | } |
abe529af BP |
2071 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { |
2072 | sset_add(&devnames, ofproto_port.name); | |
064af421 | 2073 | } |
064af421 | 2074 | |
b3c01ed3 BP |
2075 | SSET_FOR_EACH (devname, &devnames) { |
2076 | update_port(p, devname); | |
064af421 | 2077 | } |
b3c01ed3 | 2078 | sset_destroy(&devnames); |
064af421 BP |
2079 | } |
2080 | ||
4e022ec0 | 2081 | static ofp_port_t |
e1b1d06a JP |
2082 | alloc_ofp_port(struct ofproto *ofproto, const char *netdev_name) |
2083 | { | |
4e022ec0 | 2084 | uint16_t port_idx; |
e1b1d06a | 2085 | |
4e022ec0 | 2086 | port_idx = simap_get(&ofproto->ofp_requests, netdev_name); |
430dbb14 | 2087 | port_idx = port_idx ? port_idx : UINT16_MAX; |
4e022ec0 | 2088 | |
430dbb14 | 2089 | if (port_idx >= ofproto->max_ports |
fdcea803 GS |
2090 | || ofport_get_usage(ofproto, u16_to_ofp(port_idx)) == LLONG_MAX) { |
2091 | uint16_t lru_ofport = 0, end_port_no = ofproto->alloc_port_no; | |
2092 | long long int last_used_at, lru = LLONG_MAX; | |
e1b1d06a | 2093 | |
e1b1d06a JP |
2094 | /* Search for a free OpenFlow port number. We try not to |
2095 | * immediately reuse them to prevent problems due to old | |
484c8355 BP |
2096 | * flows. |
2097 | * | |
2098 | * We limit the automatically assigned port numbers to the lower half | |
2099 | * of the port range, to reserve the upper half for assignment by | |
2100 | * controllers. */ | |
6033d9d9 | 2101 | for (;;) { |
484c8355 | 2102 | if (++ofproto->alloc_port_no >= MIN(ofproto->max_ports, 32768)) { |
fdcea803 | 2103 | ofproto->alloc_port_no = 1; |
6033d9d9 | 2104 | } |
fdcea803 GS |
2105 | last_used_at = ofport_get_usage(ofproto, |
2106 | u16_to_ofp(ofproto->alloc_port_no)); | |
2107 | if (!last_used_at) { | |
430dbb14 | 2108 | port_idx = ofproto->alloc_port_no; |
6033d9d9 | 2109 | break; |
865b26a4 GS |
2110 | } else if ( last_used_at < time_msec() - 60*60*1000) { |
2111 | /* If the port with ofport 'ofproto->alloc_port_no' was deleted | |
2112 | * more than an hour ago, consider it usable. */ | |
2113 | ofport_remove_usage(ofproto, | |
2114 | u16_to_ofp(ofproto->alloc_port_no)); | |
2115 | port_idx = ofproto->alloc_port_no; | |
2116 | break; | |
fdcea803 GS |
2117 | } else if (last_used_at < lru) { |
2118 | lru = last_used_at; | |
2119 | lru_ofport = ofproto->alloc_port_no; | |
e1b1d06a | 2120 | } |
fdcea803 | 2121 | |
430dbb14 | 2122 | if (ofproto->alloc_port_no == end_port_no) { |
fdcea803 GS |
2123 | if (lru_ofport) { |
2124 | port_idx = lru_ofport; | |
2125 | break; | |
2126 | } | |
6033d9d9 | 2127 | return OFPP_NONE; |
e1b1d06a JP |
2128 | } |
2129 | } | |
2130 | } | |
fdcea803 | 2131 | ofport_set_usage(ofproto, u16_to_ofp(port_idx), LLONG_MAX); |
4e022ec0 | 2132 | return u16_to_ofp(port_idx); |
e1b1d06a JP |
2133 | } |
2134 | ||
2135 | static void | |
fdcea803 | 2136 | dealloc_ofp_port(struct ofproto *ofproto, ofp_port_t ofp_port) |
e1b1d06a | 2137 | { |
430dbb14 | 2138 | if (ofp_to_u16(ofp_port) < ofproto->max_ports) { |
fdcea803 | 2139 | ofport_set_usage(ofproto, ofp_port, time_msec()); |
40fa9417 | 2140 | } |
e1b1d06a JP |
2141 | } |
2142 | ||
fbfa2911 BP |
2143 | /* Opens and returns a netdev for 'ofproto_port' in 'ofproto', or a null |
2144 | * pointer if the netdev cannot be opened. On success, also fills in | |
2145 | * 'opp'. */ | |
b33951b8 | 2146 | static struct netdev * |
e1b1d06a JP |
2147 | ofport_open(struct ofproto *ofproto, |
2148 | struct ofproto_port *ofproto_port, | |
9e1fd49b | 2149 | struct ofputil_phy_port *pp) |
064af421 BP |
2150 | { |
2151 | enum netdev_flags flags; | |
064af421 | 2152 | struct netdev *netdev; |
064af421 BP |
2153 | int error; |
2154 | ||
18812dff | 2155 | error = netdev_open(ofproto_port->name, ofproto_port->type, &netdev); |
064af421 | 2156 | if (error) { |
fbfa2911 | 2157 | VLOG_WARN_RL(&rl, "%s: ignoring port %s (%"PRIu16") because netdev %s " |
064af421 | 2158 | "cannot be opened (%s)", |
fbfa2911 | 2159 | ofproto->name, |
abe529af | 2160 | ofproto_port->name, ofproto_port->ofp_port, |
10a89ef0 | 2161 | ofproto_port->name, ovs_strerror(error)); |
064af421 BP |
2162 | return NULL; |
2163 | } | |
2164 | ||
e1b1d06a JP |
2165 | if (ofproto_port->ofp_port == OFPP_NONE) { |
2166 | if (!strcmp(ofproto->name, ofproto_port->name)) { | |
2167 | ofproto_port->ofp_port = OFPP_LOCAL; | |
2168 | } else { | |
2169 | ofproto_port->ofp_port = alloc_ofp_port(ofproto, | |
2170 | ofproto_port->name); | |
2171 | } | |
2172 | } | |
9e1fd49b BP |
2173 | pp->port_no = ofproto_port->ofp_port; |
2174 | netdev_get_etheraddr(netdev, pp->hw_addr); | |
2175 | ovs_strlcpy(pp->name, ofproto_port->name, sizeof pp->name); | |
064af421 | 2176 | netdev_get_flags(netdev, &flags); |
9e1fd49b BP |
2177 | pp->config = flags & NETDEV_UP ? 0 : OFPUTIL_PC_PORT_DOWN; |
2178 | pp->state = netdev_get_carrier(netdev) ? 0 : OFPUTIL_PS_LINK_DOWN; | |
2179 | netdev_get_features(netdev, &pp->curr, &pp->advertised, | |
2180 | &pp->supported, &pp->peer); | |
cd65125d BP |
2181 | pp->curr_speed = netdev_features_to_bps(pp->curr, 0) / 1000; |
2182 | pp->max_speed = netdev_features_to_bps(pp->supported, 0) / 1000; | |
118c4676 | 2183 | |
b33951b8 | 2184 | return netdev; |
064af421 BP |
2185 | } |
2186 | ||
b33951b8 | 2187 | /* Returns true if most fields of 'a' and 'b' are equal. Differences in name, |
9e1fd49b | 2188 | * port number, and 'config' bits other than OFPUTIL_PS_LINK_DOWN are |
b33951b8 BP |
2189 | * disregarded. */ |
2190 | static bool | |
9e1fd49b BP |
2191 | ofport_equal(const struct ofputil_phy_port *a, |
2192 | const struct ofputil_phy_port *b) | |
064af421 | 2193 | { |
9e1fd49b | 2194 | return (eth_addr_equals(a->hw_addr, b->hw_addr) |
064af421 | 2195 | && a->state == b->state |
9e1fd49b | 2196 | && !((a->config ^ b->config) & OFPUTIL_PC_PORT_DOWN) |
064af421 BP |
2197 | && a->curr == b->curr |
2198 | && a->advertised == b->advertised | |
2199 | && a->supported == b->supported | |
9e1fd49b BP |
2200 | && a->peer == b->peer |
2201 | && a->curr_speed == b->curr_speed | |
2202 | && a->max_speed == b->max_speed); | |
064af421 BP |
2203 | } |
2204 | ||
b33951b8 BP |
2205 | /* Adds an ofport to 'p' initialized based on the given 'netdev' and 'opp'. |
2206 | * The caller must ensure that 'p' does not have a conflicting ofport (that is, | |
2207 | * one with the same name or port number). */ | |
064af421 | 2208 | static void |
b33951b8 | 2209 | ofport_install(struct ofproto *p, |
9e1fd49b | 2210 | struct netdev *netdev, const struct ofputil_phy_port *pp) |
064af421 | 2211 | { |
b33951b8 BP |
2212 | const char *netdev_name = netdev_get_name(netdev); |
2213 | struct ofport *ofport; | |
abe529af | 2214 | int error; |
72b06300 | 2215 | |
b33951b8 | 2216 | /* Create ofport. */ |
abe529af BP |
2217 | ofport = p->ofproto_class->port_alloc(); |
2218 | if (!ofport) { | |
2219 | error = ENOMEM; | |
2220 | goto error; | |
2221 | } | |
0f7d71a5 | 2222 | ofport->ofproto = p; |
b33951b8 | 2223 | ofport->netdev = netdev; |
61501798 | 2224 | ofport->change_seq = netdev_get_change_seq(netdev); |
9e1fd49b BP |
2225 | ofport->pp = *pp; |
2226 | ofport->ofp_port = pp->port_no; | |
65e0be10 | 2227 | ofport->created = time_msec(); |
b33951b8 BP |
2228 | |
2229 | /* Add port to 'p'. */ | |
4e022ec0 | 2230 | hmap_insert(&p->ports, &ofport->hmap_node, |
f9c0c3ec | 2231 | hash_ofp_port(ofport->ofp_port)); |
72b06300 | 2232 | shash_add(&p->port_by_name, netdev_name, ofport); |
abe529af | 2233 | |
ada3428f | 2234 | update_mtu(p, ofport); |
9197df76 | 2235 | |
abe529af BP |
2236 | /* Let the ofproto_class initialize its private data. */ |
2237 | error = p->ofproto_class->port_construct(ofport); | |
2238 | if (error) { | |
2239 | goto error; | |
2240 | } | |
2a6f78e0 | 2241 | connmgr_send_port_status(p->connmgr, NULL, pp, OFPPR_ADD); |
abe529af BP |
2242 | return; |
2243 | ||
2244 | error: | |
2245 | VLOG_WARN_RL(&rl, "%s: could not add port %s (%s)", | |
10a89ef0 | 2246 | p->name, netdev_name, ovs_strerror(error)); |
abe529af BP |
2247 | if (ofport) { |
2248 | ofport_destroy__(ofport); | |
2249 | } else { | |
2250 | netdev_close(netdev); | |
72b06300 | 2251 | } |
064af421 BP |
2252 | } |
2253 | ||
b33951b8 | 2254 | /* Removes 'ofport' from 'p' and destroys it. */ |
064af421 | 2255 | static void |
0f7d71a5 | 2256 | ofport_remove(struct ofport *ofport) |
064af421 | 2257 | { |
2a6f78e0 | 2258 | connmgr_send_port_status(ofport->ofproto->connmgr, NULL, &ofport->pp, |
fa066f01 | 2259 | OFPPR_DELETE); |
abe529af | 2260 | ofport_destroy(ofport); |
b33951b8 BP |
2261 | } |
2262 | ||
2263 | /* If 'ofproto' contains an ofport named 'name', removes it from 'ofproto' and | |
2264 | * destroys it. */ | |
2265 | static void | |
2266 | ofport_remove_with_name(struct ofproto *ofproto, const char *name) | |
2267 | { | |
2268 | struct ofport *port = shash_find_data(&ofproto->port_by_name, name); | |
2269 | if (port) { | |
0f7d71a5 | 2270 | ofport_remove(port); |
b33951b8 BP |
2271 | } |
2272 | } | |
2273 | ||
9e1fd49b | 2274 | /* Updates 'port' with new 'pp' description. |
b33951b8 BP |
2275 | * |
2276 | * Does not handle a name or port number change. The caller must implement | |
2277 | * such a change as a delete followed by an add. */ | |
2278 | static void | |
9e1fd49b | 2279 | ofport_modified(struct ofport *port, struct ofputil_phy_port *pp) |
b33951b8 | 2280 | { |
9e1fd49b BP |
2281 | memcpy(port->pp.hw_addr, pp->hw_addr, ETH_ADDR_LEN); |
2282 | port->pp.config = ((port->pp.config & ~OFPUTIL_PC_PORT_DOWN) | |
2283 | | (pp->config & OFPUTIL_PC_PORT_DOWN)); | |
53fd5c7c BP |
2284 | port->pp.state = ((port->pp.state & ~OFPUTIL_PS_LINK_DOWN) |
2285 | | (pp->state & OFPUTIL_PS_LINK_DOWN)); | |
9e1fd49b BP |
2286 | port->pp.curr = pp->curr; |
2287 | port->pp.advertised = pp->advertised; | |
2288 | port->pp.supported = pp->supported; | |
2289 | port->pp.peer = pp->peer; | |
2290 | port->pp.curr_speed = pp->curr_speed; | |
2291 | port->pp.max_speed = pp->max_speed; | |
b33951b8 | 2292 | |
2a6f78e0 BP |
2293 | connmgr_send_port_status(port->ofproto->connmgr, NULL, |
2294 | &port->pp, OFPPR_MODIFY); | |
064af421 BP |
2295 | } |
2296 | ||
5a2dfd47 JP |
2297 | /* Update OpenFlow 'state' in 'port' and notify controller. */ |
2298 | void | |
9e1fd49b | 2299 | ofproto_port_set_state(struct ofport *port, enum ofputil_port_state state) |
5a2dfd47 | 2300 | { |
9e1fd49b BP |
2301 | if (port->pp.state != state) { |
2302 | port->pp.state = state; | |
2a6f78e0 BP |
2303 | connmgr_send_port_status(port->ofproto->connmgr, NULL, |
2304 | &port->pp, OFPPR_MODIFY); | |
5a2dfd47 JP |
2305 | } |
2306 | } | |
2307 | ||
abe529af | 2308 | void |
4e022ec0 | 2309 | ofproto_port_unregister(struct ofproto *ofproto, ofp_port_t ofp_port) |
e7934396 | 2310 | { |
abe529af BP |
2311 | struct ofport *port = ofproto_get_port(ofproto, ofp_port); |
2312 | if (port) { | |
52a90c29 BP |
2313 | if (port->ofproto->ofproto_class->set_realdev) { |
2314 | port->ofproto->ofproto_class->set_realdev(port, 0, 0); | |
2315 | } | |
b308140a JP |
2316 | if (port->ofproto->ofproto_class->set_stp_port) { |
2317 | port->ofproto->ofproto_class->set_stp_port(port, NULL); | |
2318 | } | |
abe529af | 2319 | if (port->ofproto->ofproto_class->set_cfm) { |
a5610457 | 2320 | port->ofproto->ofproto_class->set_cfm(port, NULL); |
abe529af BP |
2321 | } |
2322 | if (port->ofproto->ofproto_class->bundle_remove) { | |
2323 | port->ofproto->ofproto_class->bundle_remove(port); | |
e7934396 BP |
2324 | } |
2325 | } | |
2326 | } | |
2327 | ||
2328 | static void | |
abe529af | 2329 | ofport_destroy__(struct ofport *port) |
e7934396 | 2330 | { |
abe529af BP |
2331 | struct ofproto *ofproto = port->ofproto; |
2332 | const char *name = netdev_get_name(port->netdev); | |
fa066f01 | 2333 | |
abe529af BP |
2334 | hmap_remove(&ofproto->ports, &port->hmap_node); |
2335 | shash_delete(&ofproto->port_by_name, | |
2336 | shash_find(&ofproto->port_by_name, name)); | |
fa066f01 | 2337 | |
abe529af BP |
2338 | netdev_close(port->netdev); |
2339 | ofproto->ofproto_class->port_dealloc(port); | |
e7934396 BP |
2340 | } |
2341 | ||
064af421 | 2342 | static void |
abe529af | 2343 | ofport_destroy(struct ofport *port) |
064af421 | 2344 | { |
fa066f01 | 2345 | if (port) { |
e1b1d06a | 2346 | dealloc_ofp_port(port->ofproto, port->ofp_port); |
abe529af BP |
2347 | port->ofproto->ofproto_class->port_destruct(port); |
2348 | ofport_destroy__(port); | |
2349 | } | |
064af421 BP |
2350 | } |
2351 | ||
abe529af | 2352 | struct ofport * |
4e022ec0 | 2353 | ofproto_get_port(const struct ofproto *ofproto, ofp_port_t ofp_port) |
ca0f572c BP |
2354 | { |
2355 | struct ofport *port; | |
2356 | ||
f9c0c3ec | 2357 | HMAP_FOR_EACH_IN_BUCKET (port, hmap_node, hash_ofp_port(ofp_port), |
4e022ec0 | 2358 | &ofproto->ports) { |
abe529af | 2359 | if (port->ofp_port == ofp_port) { |
ca0f572c BP |
2360 | return port; |
2361 | } | |
2362 | } | |
2363 | return NULL; | |
2364 | } | |
2365 | ||
fdcea803 GS |
2366 | static long long int |
2367 | ofport_get_usage(const struct ofproto *ofproto, ofp_port_t ofp_port) | |
2368 | { | |
2369 | struct ofport_usage *usage; | |
2370 | ||
2371 | HMAP_FOR_EACH_IN_BUCKET (usage, hmap_node, hash_ofp_port(ofp_port), | |
2372 | &ofproto->ofport_usage) { | |
2373 | if (usage->ofp_port == ofp_port) { | |
2374 | return usage->last_used; | |
2375 | } | |
2376 | } | |
2377 | return 0; | |
2378 | } | |
2379 | ||
2380 | static void | |
2381 | ofport_set_usage(struct ofproto *ofproto, ofp_port_t ofp_port, | |
2382 | long long int last_used) | |
2383 | { | |
2384 | struct ofport_usage *usage; | |
2385 | HMAP_FOR_EACH_IN_BUCKET (usage, hmap_node, hash_ofp_port(ofp_port), | |
2386 | &ofproto->ofport_usage) { | |
2387 | if (usage->ofp_port == ofp_port) { | |
2388 | usage->last_used = last_used; | |
2389 | return; | |
2390 | } | |
2391 | } | |
2392 | ovs_assert(last_used == LLONG_MAX); | |
2393 | ||
2394 | usage = xmalloc(sizeof *usage); | |
2395 | usage->ofp_port = ofp_port; | |
2396 | usage->last_used = last_used; | |
2397 | hmap_insert(&ofproto->ofport_usage, &usage->hmap_node, | |
2398 | hash_ofp_port(ofp_port)); | |
2399 | } | |
2400 | ||
865b26a4 GS |
2401 | static void |
2402 | ofport_remove_usage(struct ofproto *ofproto, ofp_port_t ofp_port) | |
2403 | { | |
2404 | struct ofport_usage *usage; | |
2405 | HMAP_FOR_EACH_IN_BUCKET (usage, hmap_node, hash_ofp_port(ofp_port), | |
2406 | &ofproto->ofport_usage) { | |
2407 | if (usage->ofp_port == ofp_port) { | |
2408 | hmap_remove(&ofproto->ofport_usage, &usage->hmap_node); | |
2409 | free(usage); | |
2410 | break; | |
2411 | } | |
2412 | } | |
2413 | } | |
2414 | ||
6527c598 PS |
2415 | int |
2416 | ofproto_port_get_stats(const struct ofport *port, struct netdev_stats *stats) | |
2417 | { | |
2418 | struct ofproto *ofproto = port->ofproto; | |
2419 | int error; | |
2420 | ||
2421 | if (ofproto->ofproto_class->port_get_stats) { | |
2422 | error = ofproto->ofproto_class->port_get_stats(port, stats); | |
2423 | } else { | |
2424 | error = EOPNOTSUPP; | |
2425 | } | |
2426 | ||
2427 | return error; | |
2428 | } | |
2429 | ||
064af421 | 2430 | static void |
b33951b8 | 2431 | update_port(struct ofproto *ofproto, const char *name) |
064af421 | 2432 | { |
abe529af | 2433 | struct ofproto_port ofproto_port; |
9e1fd49b | 2434 | struct ofputil_phy_port pp; |
b33951b8 BP |
2435 | struct netdev *netdev; |
2436 | struct ofport *port; | |
064af421 BP |
2437 | |
2438 | COVERAGE_INC(ofproto_update_port); | |
c874dc6d | 2439 | |
b33951b8 | 2440 | /* Fetch 'name''s location and properties from the datapath. */ |
abe529af | 2441 | netdev = (!ofproto_port_query_by_name(ofproto, name, &ofproto_port) |
fbfa2911 | 2442 | ? ofport_open(ofproto, &ofproto_port, &pp) |
b33951b8 | 2443 | : NULL); |
4e022ec0 | 2444 | |
b33951b8 | 2445 | if (netdev) { |
abe529af | 2446 | port = ofproto_get_port(ofproto, ofproto_port.ofp_port); |
b33951b8 | 2447 | if (port && !strcmp(netdev_get_name(port->netdev), name)) { |
e65942a0 BP |
2448 | struct netdev *old_netdev = port->netdev; |
2449 | ||
b33951b8 | 2450 | /* 'name' hasn't changed location. Any properties changed? */ |
9e1fd49b BP |
2451 | if (!ofport_equal(&port->pp, &pp)) { |
2452 | ofport_modified(port, &pp); | |
abe529af BP |
2453 | } |
2454 | ||
ada3428f | 2455 | update_mtu(ofproto, port); |
9197df76 | 2456 | |
e65942a0 BP |
2457 | /* Install the newly opened netdev in case it has changed. |
2458 | * Don't close the old netdev yet in case port_modified has to | |
2459 | * remove a retained reference to it.*/ | |
abe529af | 2460 | port->netdev = netdev; |
61501798 | 2461 | port->change_seq = netdev_get_change_seq(netdev); |
abe529af BP |
2462 | |
2463 | if (port->ofproto->ofproto_class->port_modified) { | |
2464 | port->ofproto->ofproto_class->port_modified(port); | |
b33951b8 | 2465 | } |
e65942a0 BP |
2466 | |
2467 | netdev_close(old_netdev); | |
b33951b8 BP |
2468 | } else { |
2469 | /* If 'port' is nonnull then its name differs from 'name' and thus | |
2470 | * we should delete it. If we think there's a port named 'name' | |
2471 | * then its port number must be wrong now so delete it too. */ | |
2472 | if (port) { | |
0f7d71a5 | 2473 | ofport_remove(port); |
b33951b8 BP |
2474 | } |
2475 | ofport_remove_with_name(ofproto, name); | |
9e1fd49b | 2476 | ofport_install(ofproto, netdev, &pp); |
c874dc6d | 2477 | } |
b33951b8 BP |
2478 | } else { |
2479 | /* Any port named 'name' is gone now. */ | |
2480 | ofport_remove_with_name(ofproto, name); | |
c874dc6d | 2481 | } |
abe529af | 2482 | ofproto_port_destroy(&ofproto_port); |
064af421 BP |
2483 | } |
2484 | ||
2485 | static int | |
2486 | init_ports(struct ofproto *p) | |
2487 | { | |
abe529af BP |
2488 | struct ofproto_port_dump dump; |
2489 | struct ofproto_port ofproto_port; | |
e1b1d06a | 2490 | struct shash_node *node, *next; |
abe529af BP |
2491 | |
2492 | OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, p) { | |
e1b1d06a JP |
2493 | const char *name = ofproto_port.name; |
2494 | ||
2495 | if (shash_find(&p->port_by_name, name)) { | |
fbfa2911 | 2496 | VLOG_WARN_RL(&rl, "%s: ignoring duplicate device %s in datapath", |
e1b1d06a | 2497 | p->name, name); |
abe529af | 2498 | } else { |
9e1fd49b | 2499 | struct ofputil_phy_port pp; |
b33951b8 BP |
2500 | struct netdev *netdev; |
2501 | ||
e1b1d06a JP |
2502 | /* Check if an OpenFlow port number had been requested. */ |
2503 | node = shash_find(&init_ofp_ports, name); | |
2504 | if (node) { | |
2505 | const struct iface_hint *iface_hint = node->data; | |
4e022ec0 AW |
2506 | simap_put(&p->ofp_requests, name, |
2507 | ofp_to_u16(iface_hint->ofp_port)); | |
e1b1d06a JP |
2508 | } |
2509 | ||
fbfa2911 | 2510 | netdev = ofport_open(p, &ofproto_port, &pp); |
b33951b8 | 2511 | if (netdev) { |
9e1fd49b | 2512 | ofport_install(p, netdev, &pp); |
430dbb14 | 2513 | if (ofp_to_u16(ofproto_port.ofp_port) < p->max_ports) { |
7c35397c | 2514 | p->alloc_port_no = MAX(p->alloc_port_no, |
430dbb14 | 2515 | ofp_to_u16(ofproto_port.ofp_port)); |
7c35397c | 2516 | } |
064af421 BP |
2517 | } |
2518 | } | |
2519 | } | |
b0ec0f27 | 2520 | |
e1b1d06a | 2521 | SHASH_FOR_EACH_SAFE(node, next, &init_ofp_ports) { |
4f9e08a5 | 2522 | struct iface_hint *iface_hint = node->data; |
e1b1d06a JP |
2523 | |
2524 | if (!strcmp(iface_hint->br_name, p->name)) { | |
2525 | free(iface_hint->br_name); | |
2526 | free(iface_hint->br_type); | |
4f9e08a5 | 2527 | free(iface_hint); |
e1b1d06a JP |
2528 | shash_delete(&init_ofp_ports, node); |
2529 | } | |
2530 | } | |
2531 | ||
064af421 BP |
2532 | return 0; |
2533 | } | |
9197df76 JP |
2534 | |
2535 | /* Find the minimum MTU of all non-datapath devices attached to 'p'. | |
2536 | * Returns ETH_PAYLOAD_MAX or the minimum of the ports. */ | |
2537 | static int | |
2538 | find_min_mtu(struct ofproto *p) | |
2539 | { | |
2540 | struct ofport *ofport; | |
2541 | int mtu = 0; | |
2542 | ||
2543 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
2544 | struct netdev *netdev = ofport->netdev; | |
2545 | int dev_mtu; | |
2546 | ||
2547 | /* Skip any internal ports, since that's what we're trying to | |
2548 | * set. */ | |
2549 | if (!strcmp(netdev_get_type(netdev), "internal")) { | |
2550 | continue; | |
2551 | } | |
2552 | ||
2553 | if (netdev_get_mtu(netdev, &dev_mtu)) { | |
2554 | continue; | |
2555 | } | |
2556 | if (!mtu || dev_mtu < mtu) { | |
2557 | mtu = dev_mtu; | |
2558 | } | |
2559 | } | |
2560 | ||
2561 | return mtu ? mtu: ETH_PAYLOAD_MAX; | |
2562 | } | |
2563 | ||
ada3428f PS |
2564 | /* Update MTU of all datapath devices on 'p' to the minimum of the |
2565 | * non-datapath ports in event of 'port' added or changed. */ | |
9197df76 | 2566 | static void |
ada3428f | 2567 | update_mtu(struct ofproto *p, struct ofport *port) |
9197df76 JP |
2568 | { |
2569 | struct ofport *ofport; | |
ada3428f PS |
2570 | struct netdev *netdev = port->netdev; |
2571 | int dev_mtu, old_min; | |
2572 | ||
2573 | if (netdev_get_mtu(netdev, &dev_mtu)) { | |
2574 | port->mtu = 0; | |
2575 | return; | |
2576 | } | |
2577 | if (!strcmp(netdev_get_type(port->netdev), "internal")) { | |
2578 | if (dev_mtu > p->min_mtu) { | |
2579 | if (!netdev_set_mtu(port->netdev, p->min_mtu)) { | |
2580 | dev_mtu = p->min_mtu; | |
2581 | } | |
2582 | } | |
2583 | port->mtu = dev_mtu; | |
2584 | return; | |
2585 | } | |
2586 | ||
2587 | /* For non-internal port find new min mtu. */ | |
2588 | old_min = p->min_mtu; | |
2589 | port->mtu = dev_mtu; | |
2590 | p->min_mtu = find_min_mtu(p); | |
2591 | if (p->min_mtu == old_min) { | |
2592 | return; | |
2593 | } | |
9197df76 JP |
2594 | |
2595 | HMAP_FOR_EACH (ofport, hmap_node, &p->ports) { | |
2596 | struct netdev *netdev = ofport->netdev; | |
2597 | ||
2598 | if (!strcmp(netdev_get_type(netdev), "internal")) { | |
ada3428f PS |
2599 | if (!netdev_set_mtu(netdev, p->min_mtu)) { |
2600 | ofport->mtu = p->min_mtu; | |
2601 | } | |
9197df76 JP |
2602 | } |
2603 | } | |
2604 | } | |
064af421 | 2605 | \f |
f416c8d6 JR |
2606 | static void |
2607 | ofproto_rule_destroy__(struct rule *rule) | |
2608 | OVS_NO_THREAD_SAFETY_ANALYSIS | |
2609 | { | |
2610 | cls_rule_destroy(CONST_CAST(struct cls_rule *, &rule->cr)); | |
2611 | rule_actions_destroy(rule_get_actions(rule)); | |
2612 | ovs_mutex_destroy(&rule->mutex); | |
2613 | rule->ofproto->ofproto_class->rule_dealloc(rule); | |
2614 | } | |
2615 | ||
2616 | static void | |
2617 | rule_destroy_cb(struct rule *rule) | |
2618 | { | |
2619 | rule->ofproto->ofproto_class->rule_destruct(rule); | |
2620 | ofproto_rule_destroy__(rule); | |
2621 | } | |
2622 | ||
a2143702 BP |
2623 | void |
2624 | ofproto_rule_ref(struct rule *rule) | |
064af421 | 2625 | { |
1eae3d33 | 2626 | if (rule) { |
37bec3d3 | 2627 | ovs_refcount_ref(&rule->ref_count); |
a2143702 BP |
2628 | } |
2629 | } | |
2630 | ||
f416c8d6 JR |
2631 | /* Decrements 'rule''s ref_count and schedules 'rule' to be destroyed if the |
2632 | * ref_count reaches 0. | |
2633 | * | |
2634 | * Use of RCU allows short term use (between RCU quiescent periods) without | |
2635 | * keeping a reference. A reference must be taken if the rule needs to | |
2636 | * stay around accross the RCU quiescent periods. */ | |
a2143702 BP |
2637 | void |
2638 | ofproto_rule_unref(struct rule *rule) | |
2639 | { | |
37bec3d3 | 2640 | if (rule && ovs_refcount_unref(&rule->ref_count) == 1) { |
f416c8d6 | 2641 | ovsrcu_postpone(rule_destroy_cb, rule); |
1eae3d33 | 2642 | } |
064af421 BP |
2643 | } |
2644 | ||
65efd2ab JR |
2645 | static uint32_t get_provider_meter_id(const struct ofproto *, |
2646 | uint32_t of_meter_id); | |
2647 | ||
dc723c44 JR |
2648 | /* Creates and returns a new 'struct rule_actions', whose actions are a copy |
2649 | * of from the 'ofpacts_len' bytes of 'ofpacts'. */ | |
2650 | const struct rule_actions * | |
65efd2ab JR |
2651 | rule_actions_create(const struct ofproto *ofproto, |
2652 | const struct ofpact *ofpacts, size_t ofpacts_len) | |
6f00e29b BP |
2653 | { |
2654 | struct rule_actions *actions; | |
2655 | ||
dc723c44 | 2656 | actions = xmalloc(sizeof *actions + ofpacts_len); |
6f00e29b | 2657 | actions->ofpacts_len = ofpacts_len; |
65efd2ab JR |
2658 | actions->provider_meter_id |
2659 | = get_provider_meter_id(ofproto, | |
2660 | ofpacts_get_meter(ofpacts, ofpacts_len)); | |
dc723c44 | 2661 | memcpy(actions->ofpacts, ofpacts, ofpacts_len); |
65efd2ab | 2662 | |
6f00e29b BP |
2663 | return actions; |
2664 | } | |
2665 | ||
dc723c44 | 2666 | /* Free the actions after the RCU quiescent period is reached. */ |
6f00e29b | 2667 | void |
dc723c44 | 2668 | rule_actions_destroy(const struct rule_actions *actions) |
6f00e29b | 2669 | { |
06a0f3e2 | 2670 | if (actions) { |
dc723c44 | 2671 | ovsrcu_postpone(free, CONST_CAST(struct rule_actions *, actions)); |
6f00e29b BP |
2672 | } |
2673 | } | |
2674 | ||
bcf84111 | 2675 | /* Returns true if 'rule' has an OpenFlow OFPAT_OUTPUT or OFPAT_ENQUEUE action |
f25d0cf3 | 2676 | * that outputs to 'port' (output to OFPP_FLOOD and OFPP_ALL doesn't count). */ |
74e79b7c | 2677 | static bool |
4e022ec0 | 2678 | ofproto_rule_has_out_port(const struct rule *rule, ofp_port_t port) |
15aaf599 | 2679 | OVS_REQUIRES(ofproto_mutex) |
064af421 | 2680 | { |
06a0f3e2 BP |
2681 | if (port == OFPP_ANY) { |
2682 | return true; | |
2683 | } else { | |
2684 | const struct rule_actions *actions = rule_get_actions(rule); | |
2685 | return ofpacts_output_to_port(actions->ofpacts, | |
2686 | actions->ofpacts_len, port); | |
2687 | } | |
064af421 BP |
2688 | } |
2689 | ||
7395c052 | 2690 | /* Returns true if 'rule' has group and equals group_id. */ |
74e79b7c | 2691 | static bool |
7395c052 | 2692 | ofproto_rule_has_out_group(const struct rule *rule, uint32_t group_id) |
15aaf599 | 2693 | OVS_REQUIRES(ofproto_mutex) |
7395c052 | 2694 | { |
06a0f3e2 BP |
2695 | if (group_id == OFPG_ANY) { |
2696 | return true; | |
2697 | } else { | |
2698 | const struct rule_actions *actions = rule_get_actions(rule); | |
2699 | return ofpacts_output_to_group(actions->ofpacts, | |
2700 | actions->ofpacts_len, group_id); | |
2701 | } | |
7395c052 NZ |
2702 | } |
2703 | ||
2b07c8b1 BP |
2704 | /* Returns true if a rule related to 'op' has an OpenFlow OFPAT_OUTPUT or |
2705 | * OFPAT_ENQUEUE action that outputs to 'out_port'. */ | |
2706 | bool | |
4e022ec0 | 2707 | ofoperation_has_out_port(const struct ofoperation *op, ofp_port_t out_port) |
15aaf599 | 2708 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
2709 | { |
2710 | if (ofproto_rule_has_out_port(op->rule, out_port)) { | |
2711 | return true; | |
2712 | } | |
2713 | ||
2714 | switch (op->type) { | |
2715 | case OFOPERATION_ADD: | |
2b07c8b1 BP |
2716 | case OFOPERATION_DELETE: |
2717 | return false; | |
2718 | ||
2719 | case OFOPERATION_MODIFY: | |
b277c7cc | 2720 | case OFOPERATION_REPLACE: |
6f00e29b BP |
2721 | return ofpacts_output_to_port(op->actions->ofpacts, |
2722 | op->actions->ofpacts_len, out_port); | |
2b07c8b1 BP |
2723 | } |
2724 | ||
428b2edd | 2725 | OVS_NOT_REACHED(); |
2b07c8b1 BP |
2726 | } |
2727 | ||
35412852 BP |
2728 | static void |
2729 | rule_execute_destroy(struct rule_execute *e) | |
eedc0097 | 2730 | { |
35412852 BP |
2731 | ofproto_rule_unref(e->rule); |
2732 | list_remove(&e->list_node); | |
2733 | free(e); | |
2734 | } | |
eedc0097 | 2735 | |
35412852 BP |
2736 | /* Executes all "rule_execute" operations queued up in ofproto->rule_executes, |
2737 | * by passing them to the ofproto provider. */ | |
2738 | static void | |
2739 | run_rule_executes(struct ofproto *ofproto) | |
15aaf599 | 2740 | OVS_EXCLUDED(ofproto_mutex) |
35412852 BP |
2741 | { |
2742 | struct rule_execute *e, *next; | |
2743 | struct list executes; | |
2744 | ||
2745 | guarded_list_pop_all(&ofproto->rule_executes, &executes); | |
2746 | LIST_FOR_EACH_SAFE (e, next, list_node, &executes) { | |
35412852 BP |
2747 | struct flow flow; |
2748 | ||
b5e7e61a AZ |
2749 | flow_extract(e->packet, NULL, &flow); |
2750 | flow.in_port.ofp_port = e->in_port; | |
35412852 BP |
2751 | ofproto->ofproto_class->rule_execute(e->rule, &flow, e->packet); |
2752 | ||
2753 | rule_execute_destroy(e); | |
2754 | } | |
2755 | } | |
2756 | ||
2757 | /* Destroys and discards all "rule_execute" operations queued up in | |
2758 | * ofproto->rule_executes. */ | |
2759 | static void | |
2760 | destroy_rule_executes(struct ofproto *ofproto) | |
2761 | { | |
2762 | struct rule_execute *e, *next; | |
2763 | struct list executes; | |
2764 | ||
2765 | guarded_list_pop_all(&ofproto->rule_executes, &executes); | |
2766 | LIST_FOR_EACH_SAFE (e, next, list_node, &executes) { | |
2767 | ofpbuf_delete(e->packet); | |
2768 | rule_execute_destroy(e); | |
2769 | } | |
350a665f BP |
2770 | } |
2771 | ||
abe529af BP |
2772 | /* Returns true if 'rule' should be hidden from the controller. |
2773 | * | |
2774 | * Rules with priority higher than UINT16_MAX are set up by ofproto itself | |
2775 | * (e.g. by in-band control) and are intentionally hidden from the | |
2776 | * controller. */ | |
74e79b7c | 2777 | static bool |
2b07c8b1 | 2778 | ofproto_rule_is_hidden(const struct rule *rule) |
b6c9e612 | 2779 | { |
adcf00ba | 2780 | return (rule->cr.priority > UINT16_MAX); |
7b064a79 | 2781 | } |
5c67e4af | 2782 | |
adcf00ba AZ |
2783 | static bool |
2784 | oftable_is_modifiable(const struct oftable *table, | |
2785 | enum ofputil_flow_mod_flags flags) | |
5c67e4af | 2786 | { |
adcf00ba AZ |
2787 | if (flags & OFPUTIL_FF_NO_READONLY) { |
2788 | return true; | |
2789 | } | |
2790 | ||
2791 | return !(table->flags & OFTABLE_READONLY); | |
5c67e4af BP |
2792 | } |
2793 | ||
2794 | static bool | |
adcf00ba | 2795 | rule_is_modifiable(const struct rule *rule, enum ofputil_flow_mod_flags flags) |
5c67e4af | 2796 | { |
adcf00ba AZ |
2797 | const struct oftable *rule_table; |
2798 | ||
2799 | rule_table = &rule->ofproto->tables[rule->table_id]; | |
2800 | return oftable_is_modifiable(rule_table, flags); | |
5c67e4af | 2801 | } |
fa066f01 | 2802 | \f |
90bf1e07 | 2803 | static enum ofperr |
d1e2cf21 | 2804 | handle_echo_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 2805 | { |
b0421aa2 | 2806 | ofconn_send_reply(ofconn, make_echo_reply(oh)); |
064af421 | 2807 | return 0; |
064af421 BP |
2808 | } |
2809 | ||
90bf1e07 | 2810 | static enum ofperr |
d1e2cf21 | 2811 | handle_features_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 2812 | { |
64ff1d96 | 2813 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
9e1fd49b | 2814 | struct ofputil_switch_features features; |
064af421 | 2815 | struct ofport *port; |
6c1491fb | 2816 | bool arp_match_ip; |
9e1fd49b | 2817 | struct ofpbuf *b; |
064af421 | 2818 | |
9e1fd49b BP |
2819 | ofproto->ofproto_class->get_features(ofproto, &arp_match_ip, |
2820 | &features.actions); | |
cb22974d | 2821 | ovs_assert(features.actions & OFPUTIL_A_OUTPUT); /* sanity check */ |
064af421 | 2822 | |
9e1fd49b BP |
2823 | features.datapath_id = ofproto->datapath_id; |
2824 | features.n_buffers = pktbuf_capacity(); | |
adcf00ba | 2825 | features.n_tables = ofproto_get_n_visible_tables(ofproto); |
9e1fd49b BP |
2826 | features.capabilities = (OFPUTIL_C_FLOW_STATS | OFPUTIL_C_TABLE_STATS | |
2827 | OFPUTIL_C_PORT_STATS | OFPUTIL_C_QUEUE_STATS); | |
6c1491fb | 2828 | if (arp_match_ip) { |
9e1fd49b | 2829 | features.capabilities |= OFPUTIL_C_ARP_MATCH_IP; |
6c1491fb | 2830 | } |
2e1ae200 JR |
2831 | /* FIXME: Fill in proper features.auxiliary_id for auxiliary connections */ |
2832 | features.auxiliary_id = 0; | |
9e1fd49b BP |
2833 | b = ofputil_encode_switch_features(&features, ofconn_get_protocol(ofconn), |
2834 | oh->xid); | |
64ff1d96 | 2835 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
9e1fd49b | 2836 | ofputil_put_switch_features_port(&port->pp, b); |
064af421 | 2837 | } |
064af421 | 2838 | |
9e1fd49b | 2839 | ofconn_send_reply(ofconn, b); |
064af421 BP |
2840 | return 0; |
2841 | } | |
064af421 | 2842 | |
90bf1e07 | 2843 | static enum ofperr |
d1e2cf21 | 2844 | handle_get_config_request(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 2845 | { |
64ff1d96 | 2846 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
064af421 | 2847 | struct ofp_switch_config *osc; |
f0fd1a17 | 2848 | enum ofp_config_flags flags; |
7257b535 | 2849 | struct ofpbuf *buf; |
959a2ecd | 2850 | |
064af421 | 2851 | /* Send reply. */ |
982697a4 BP |
2852 | buf = ofpraw_alloc_reply(OFPRAW_OFPT_GET_CONFIG_REPLY, oh, 0); |
2853 | osc = ofpbuf_put_uninit(buf, sizeof *osc); | |
f0fd1a17 | 2854 | flags = ofproto->frag_handling; |
2e1ae200 JR |
2855 | /* OFPC_INVALID_TTL_TO_CONTROLLER is deprecated in OF 1.3 */ |
2856 | if (oh->version < OFP13_VERSION | |
2857 | && ofconn_get_invalid_ttl_to_controller(ofconn)) { | |
f0fd1a17 PS |
2858 | flags |= OFPC_INVALID_TTL_TO_CONTROLLER; |
2859 | } | |
2860 | osc->flags = htons(flags); | |
810605a2 | 2861 | osc->miss_send_len = htons(ofconn_get_miss_send_len(ofconn)); |
b0421aa2 | 2862 | ofconn_send_reply(ofconn, buf); |
2d70a31a | 2863 | |
064af421 BP |
2864 | return 0; |
2865 | } | |
064af421 | 2866 | |
90bf1e07 | 2867 | static enum ofperr |
982697a4 | 2868 | handle_set_config(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 2869 | { |
982697a4 | 2870 | const struct ofp_switch_config *osc = ofpmsg_body(oh); |
64ff1d96 | 2871 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
d1e2cf21 | 2872 | uint16_t flags = ntohs(osc->flags); |
2d70a31a | 2873 | |
7257b535 | 2874 | if (ofconn_get_type(ofconn) != OFCONN_PRIMARY |
f4f1ea7e | 2875 | || ofconn_get_role(ofconn) != OFPCR12_ROLE_SLAVE) { |
7257b535 BP |
2876 | enum ofp_config_flags cur = ofproto->frag_handling; |
2877 | enum ofp_config_flags next = flags & OFPC_FRAG_MASK; | |
2878 | ||
cb22974d | 2879 | ovs_assert((cur & OFPC_FRAG_MASK) == cur); |
7257b535 BP |
2880 | if (cur != next) { |
2881 | if (ofproto->ofproto_class->set_frag_handling(ofproto, next)) { | |
2882 | ofproto->frag_handling = next; | |
2883 | } else { | |
2884 | VLOG_WARN_RL(&rl, "%s: unsupported fragment handling mode %s", | |
2885 | ofproto->name, | |
2886 | ofputil_frag_handling_to_string(next)); | |
2887 | } | |
064af421 BP |
2888 | } |
2889 | } | |
2e1ae200 | 2890 | /* OFPC_INVALID_TTL_TO_CONTROLLER is deprecated in OF 1.3 */ |
f0fd1a17 | 2891 | ofconn_set_invalid_ttl_to_controller(ofconn, |
2e1ae200 JR |
2892 | (oh->version < OFP13_VERSION |
2893 | && flags & OFPC_INVALID_TTL_TO_CONTROLLER)); | |
ebe482fd | 2894 | |
810605a2 | 2895 | ofconn_set_miss_send_len(ofconn, ntohs(osc->miss_send_len)); |
0ad9b732 | 2896 | |
064af421 | 2897 | return 0; |
064af421 BP |
2898 | } |
2899 | ||
9deba63b | 2900 | /* Checks whether 'ofconn' is a slave controller. If so, returns an OpenFlow |
90bf1e07 BP |
2901 | * error message code for the caller to propagate upward. Otherwise, returns |
2902 | * 0. | |
2903 | * | |
2904 | * The log message mentions 'msg_type'. */ | |
2905 | static enum ofperr | |
2906 | reject_slave_controller(struct ofconn *ofconn) | |
9deba63b | 2907 | { |
1ce0a5fa | 2908 | if (ofconn_get_type(ofconn) == OFCONN_PRIMARY |
f4f1ea7e | 2909 | && ofconn_get_role(ofconn) == OFPCR12_ROLE_SLAVE) { |
90bf1e07 | 2910 | return OFPERR_OFPBRC_EPERM; |
9deba63b BP |
2911 | } else { |
2912 | return 0; | |
2913 | } | |
2914 | } | |
2915 | ||
7e9f8266 BP |
2916 | /* Checks that the 'ofpacts_len' bytes of action in 'ofpacts' are appropriate |
2917 | * for 'ofproto': | |
2918 | * | |
2919 | * - If they use a meter, then 'ofproto' has that meter configured. | |
2920 | * | |
2921 | * - If they use any groups, then 'ofproto' has that group configured. | |
2922 | * | |
2923 | * Returns 0 if successful, otherwise an OpenFlow error. */ | |
9cae45dc JR |
2924 | static enum ofperr |
2925 | ofproto_check_ofpacts(struct ofproto *ofproto, | |
7e9f8266 | 2926 | const struct ofpact ofpacts[], size_t ofpacts_len) |
9cae45dc | 2927 | { |
84d68566 | 2928 | const struct ofpact *a; |
9cae45dc JR |
2929 | uint32_t mid; |
2930 | ||
7e9f8266 BP |
2931 | mid = ofpacts_get_meter(ofpacts, ofpacts_len); |
2932 | if (mid && get_provider_meter_id(ofproto, mid) == UINT32_MAX) { | |
2933 | return OFPERR_OFPMMFC_INVALID_METER; | |
9cae45dc JR |
2934 | } |
2935 | ||
84d68566 | 2936 | OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) { |
7e9f8266 BP |
2937 | if (a->type == OFPACT_GROUP |
2938 | && !ofproto_group_exists(ofproto, ofpact_get_GROUP(a)->group_id)) { | |
2939 | return OFPERR_OFPBAC_BAD_OUT_GROUP; | |
84d68566 SH |
2940 | } |
2941 | } | |
2942 | ||
9cae45dc JR |
2943 | return 0; |
2944 | } | |
2945 | ||
90bf1e07 | 2946 | static enum ofperr |
982697a4 | 2947 | handle_packet_out(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 2948 | { |
64ff1d96 | 2949 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
c6a93eb7 BP |
2950 | struct ofputil_packet_out po; |
2951 | struct ofpbuf *payload; | |
f25d0cf3 BP |
2952 | uint64_t ofpacts_stub[1024 / 8]; |
2953 | struct ofpbuf ofpacts; | |
ae412e7d | 2954 | struct flow flow; |
90bf1e07 | 2955 | enum ofperr error; |
064af421 | 2956 | |
ac51afaf BP |
2957 | COVERAGE_INC(ofproto_packet_out); |
2958 | ||
76589937 | 2959 | error = reject_slave_controller(ofconn); |
9deba63b | 2960 | if (error) { |
f25d0cf3 | 2961 | goto exit; |
9deba63b BP |
2962 | } |
2963 | ||
c6a93eb7 | 2964 | /* Decode message. */ |
f25d0cf3 | 2965 | ofpbuf_use_stub(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); |
982697a4 | 2966 | error = ofputil_decode_packet_out(&po, oh, &ofpacts); |
064af421 | 2967 | if (error) { |
f25d0cf3 | 2968 | goto exit_free_ofpacts; |
064af421 | 2969 | } |
430dbb14 | 2970 | if (ofp_to_u16(po.in_port) >= p->max_ports |
4e022ec0 | 2971 | && ofp_to_u16(po.in_port) < ofp_to_u16(OFPP_MAX)) { |
2e1bfcb6 | 2972 | error = OFPERR_OFPBRC_BAD_PORT; |
91858960 BP |
2973 | goto exit_free_ofpacts; |
2974 | } | |
064af421 | 2975 | |
ac51afaf | 2976 | /* Get payload. */ |
c6a93eb7 BP |
2977 | if (po.buffer_id != UINT32_MAX) { |
2978 | error = ofconn_pktbuf_retrieve(ofconn, po.buffer_id, &payload, NULL); | |
2979 | if (error || !payload) { | |
f25d0cf3 | 2980 | goto exit_free_ofpacts; |
064af421 | 2981 | } |
064af421 | 2982 | } else { |
bb622f82 BP |
2983 | /* Ensure that the L3 header is 32-bit aligned. */ |
2984 | payload = ofpbuf_clone_data_with_headroom(po.packet, po.packet_len, 2); | |
e1154f71 BP |
2985 | } |
2986 | ||
548de4dd | 2987 | /* Verify actions against packet, then send packet if successful. */ |
b5e7e61a AZ |
2988 | flow_extract(payload, NULL, &flow); |
2989 | flow.in_port.ofp_port = po.in_port; | |
7e9f8266 | 2990 | error = ofproto_check_ofpacts(p, po.ofpacts, po.ofpacts_len); |
548de4dd BP |
2991 | if (!error) { |
2992 | error = p->ofproto_class->packet_out(p, payload, &flow, | |
2993 | po.ofpacts, po.ofpacts_len); | |
2994 | } | |
c6a93eb7 | 2995 | ofpbuf_delete(payload); |
abe529af | 2996 | |
f25d0cf3 BP |
2997 | exit_free_ofpacts: |
2998 | ofpbuf_uninit(&ofpacts); | |
2999 | exit: | |
abe529af | 3000 | return error; |
064af421 BP |
3001 | } |
3002 | ||
3003 | static void | |
2a6f78e0 | 3004 | update_port_config(struct ofconn *ofconn, struct ofport *port, |
9e1fd49b BP |
3005 | enum ofputil_port_config config, |
3006 | enum ofputil_port_config mask) | |
064af421 | 3007 | { |
2a6f78e0 | 3008 | enum ofputil_port_config toggle = (config ^ port->pp.config) & mask; |
abe529af | 3009 | |
2a6f78e0 BP |
3010 | if (toggle & OFPUTIL_PC_PORT_DOWN |
3011 | && (config & OFPUTIL_PC_PORT_DOWN | |
3012 | ? netdev_turn_flags_off(port->netdev, NETDEV_UP, NULL) | |
3013 | : netdev_turn_flags_on(port->netdev, NETDEV_UP, NULL))) { | |
3014 | /* We tried to bring the port up or down, but it failed, so don't | |
3015 | * update the "down" bit. */ | |
9e1fd49b | 3016 | toggle &= ~OFPUTIL_PC_PORT_DOWN; |
064af421 | 3017 | } |
abe529af | 3018 | |
2a6f78e0 BP |
3019 | if (toggle) { |
3020 | enum ofputil_port_config old_config = port->pp.config; | |
3021 | port->pp.config ^= toggle; | |
abe529af | 3022 | port->ofproto->ofproto_class->port_reconfigured(port, old_config); |
2a6f78e0 BP |
3023 | connmgr_send_port_status(port->ofproto->connmgr, ofconn, &port->pp, |
3024 | OFPPR_MODIFY); | |
064af421 BP |
3025 | } |
3026 | } | |
3027 | ||
90bf1e07 | 3028 | static enum ofperr |
d1e2cf21 | 3029 | handle_port_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
064af421 | 3030 | { |
64ff1d96 | 3031 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
9e1fd49b | 3032 | struct ofputil_port_mod pm; |
064af421 | 3033 | struct ofport *port; |
9e1fd49b | 3034 | enum ofperr error; |
064af421 | 3035 | |
76589937 | 3036 | error = reject_slave_controller(ofconn); |
9deba63b BP |
3037 | if (error) { |
3038 | return error; | |
3039 | } | |
064af421 | 3040 | |
18cc69d9 | 3041 | error = ofputil_decode_port_mod(oh, &pm, false); |
9e1fd49b BP |
3042 | if (error) { |
3043 | return error; | |
3044 | } | |
3045 | ||
3046 | port = ofproto_get_port(p, pm.port_no); | |
064af421 | 3047 | if (!port) { |
90bf1e07 | 3048 | return OFPERR_OFPPMFC_BAD_PORT; |
9e1fd49b | 3049 | } else if (!eth_addr_equals(port->pp.hw_addr, pm.hw_addr)) { |
90bf1e07 | 3050 | return OFPERR_OFPPMFC_BAD_HW_ADDR; |
064af421 | 3051 | } else { |
2a6f78e0 | 3052 | update_port_config(ofconn, port, pm.config, pm.mask); |
9e1fd49b BP |
3053 | if (pm.advertise) { |
3054 | netdev_set_advertisements(port->netdev, pm.advertise); | |
064af421 BP |
3055 | } |
3056 | } | |
3057 | return 0; | |
3058 | } | |
3059 | ||
90bf1e07 | 3060 | static enum ofperr |
3269c562 | 3061 | handle_desc_stats_request(struct ofconn *ofconn, |
982697a4 | 3062 | const struct ofp_header *request) |
064af421 | 3063 | { |
061bfea4 BP |
3064 | static const char *default_mfr_desc = "Nicira, Inc."; |
3065 | static const char *default_hw_desc = "Open vSwitch"; | |
3066 | static const char *default_sw_desc = VERSION; | |
3067 | static const char *default_serial_desc = "None"; | |
3068 | static const char *default_dp_desc = "None"; | |
3069 | ||
64ff1d96 | 3070 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 BP |
3071 | struct ofp_desc_stats *ods; |
3072 | struct ofpbuf *msg; | |
3073 | ||
982697a4 BP |
3074 | msg = ofpraw_alloc_stats_reply(request, 0); |
3075 | ods = ofpbuf_put_zeros(msg, sizeof *ods); | |
061bfea4 BP |
3076 | ovs_strlcpy(ods->mfr_desc, p->mfr_desc ? p->mfr_desc : default_mfr_desc, |
3077 | sizeof ods->mfr_desc); | |
3078 | ovs_strlcpy(ods->hw_desc, p->hw_desc ? p->hw_desc : default_hw_desc, | |
3079 | sizeof ods->hw_desc); | |
3080 | ovs_strlcpy(ods->sw_desc, p->sw_desc ? p->sw_desc : default_sw_desc, | |
3081 | sizeof ods->sw_desc); | |
3082 | ovs_strlcpy(ods->serial_num, | |
3083 | p->serial_desc ? p->serial_desc : default_serial_desc, | |
3084 | sizeof ods->serial_num); | |
3085 | ovs_strlcpy(ods->dp_desc, p->dp_desc ? p->dp_desc : default_dp_desc, | |
3086 | sizeof ods->dp_desc); | |
b0421aa2 | 3087 | ofconn_send_reply(ofconn, msg); |
064af421 BP |
3088 | |
3089 | return 0; | |
3090 | } | |
3091 | ||
90bf1e07 | 3092 | static enum ofperr |
3269c562 | 3093 | handle_table_stats_request(struct ofconn *ofconn, |
982697a4 | 3094 | const struct ofp_header *request) |
064af421 | 3095 | { |
64ff1d96 | 3096 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
307975da | 3097 | struct ofp12_table_stats *ots; |
064af421 | 3098 | struct ofpbuf *msg; |
c2f0373a | 3099 | int n_tables; |
6c1491fb | 3100 | size_t i; |
064af421 | 3101 | |
307975da SH |
3102 | /* Set up default values. |
3103 | * | |
3104 | * ofp12_table_stats is used as a generic structure as | |
3105 | * it is able to hold all the fields for ofp10_table_stats | |
3106 | * and ofp11_table_stats (and of course itself). | |
3107 | */ | |
3108 | ots = xcalloc(p->n_tables, sizeof *ots); | |
6c1491fb BP |
3109 | for (i = 0; i < p->n_tables; i++) { |
3110 | ots[i].table_id = i; | |
34582733 | 3111 | sprintf(ots[i].name, "table%"PRIuSIZE, i); |
6240624b BP |
3112 | ots[i].match = htonll(OFPXMT13_MASK); |
3113 | ots[i].wildcards = htonll(OFPXMT13_MASK); | |
e78b61f6 BP |
3114 | ots[i].write_actions = htonl(OFPAT11_OUTPUT); |
3115 | ots[i].apply_actions = htonl(OFPAT11_OUTPUT); | |
6240624b BP |
3116 | ots[i].write_setfields = htonll(OFPXMT13_MASK); |
3117 | ots[i].apply_setfields = htonll(OFPXMT13_MASK); | |
b8266395 BP |
3118 | ots[i].metadata_match = OVS_BE64_MAX; |
3119 | ots[i].metadata_write = OVS_BE64_MAX; | |
307975da SH |
3120 | ots[i].instructions = htonl(OFPIT11_ALL); |
3121 | ots[i].config = htonl(OFPTC11_TABLE_MISS_MASK); | |
6c1491fb | 3122 | ots[i].max_entries = htonl(1000000); /* An arbitrary big number. */ |
06f81620 | 3123 | fat_rwlock_rdlock(&p->tables[i].cls.rwlock); |
d0918789 | 3124 | ots[i].active_count = htonl(classifier_count(&p->tables[i].cls)); |
06f81620 | 3125 | fat_rwlock_unlock(&p->tables[i].cls.rwlock); |
6c1491fb | 3126 | } |
064af421 | 3127 | |
6c1491fb | 3128 | p->ofproto_class->get_tables(p, ots); |
064af421 | 3129 | |
c2f0373a BP |
3130 | /* Post-process the tables, dropping hidden tables. */ |
3131 | n_tables = p->n_tables; | |
254750ce BP |
3132 | for (i = 0; i < p->n_tables; i++) { |
3133 | const struct oftable *table = &p->tables[i]; | |
3134 | ||
c2f0373a BP |
3135 | if (table->flags & OFTABLE_HIDDEN) { |
3136 | n_tables = i; | |
3137 | break; | |
3138 | } | |
3139 | ||
254750ce BP |
3140 | if (table->name) { |
3141 | ovs_strzcpy(ots[i].name, table->name, sizeof ots[i].name); | |
3142 | } | |
3143 | ||
3144 | if (table->max_flows < ntohl(ots[i].max_entries)) { | |
3145 | ots[i].max_entries = htonl(table->max_flows); | |
3146 | } | |
3147 | } | |
3148 | ||
c2f0373a | 3149 | msg = ofputil_encode_table_stats_reply(ots, n_tables, request); |
b0421aa2 | 3150 | ofconn_send_reply(ofconn, msg); |
307975da SH |
3151 | |
3152 | free(ots); | |
3153 | ||
064af421 BP |
3154 | return 0; |
3155 | } | |
3156 | ||
abaad8cf | 3157 | static void |
63f2140a | 3158 | append_port_stat(struct ofport *port, struct list *replies) |
abaad8cf | 3159 | { |
f8e4867e | 3160 | struct ofputil_port_stats ops = { .port_no = port->pp.port_no }; |
abaad8cf | 3161 | |
65e0be10 BP |
3162 | calc_duration(port->created, time_msec(), |
3163 | &ops.duration_sec, &ops.duration_nsec); | |
3164 | ||
d295e8e9 JP |
3165 | /* Intentionally ignore return value, since errors will set |
3166 | * 'stats' to all-1s, which is correct for OpenFlow, and | |
abaad8cf | 3167 | * netdev_get_stats() will log errors. */ |
f8e4867e SH |
3168 | ofproto_port_get_stats(port, &ops.stats); |
3169 | ||
3170 | ofputil_append_port_stat(replies, &ops); | |
abaad8cf JP |
3171 | } |
3172 | ||
90bf1e07 | 3173 | static enum ofperr |
63f2140a | 3174 | handle_port_stats_request(struct ofconn *ofconn, |
982697a4 | 3175 | const struct ofp_header *request) |
064af421 | 3176 | { |
64ff1d96 | 3177 | struct ofproto *p = ofconn_get_ofproto(ofconn); |
064af421 | 3178 | struct ofport *port; |
63f2140a | 3179 | struct list replies; |
4e022ec0 | 3180 | ofp_port_t port_no; |
f8e4867e SH |
3181 | enum ofperr error; |
3182 | ||
3183 | error = ofputil_decode_port_stats_request(request, &port_no); | |
3184 | if (error) { | |
3185 | return error; | |
3186 | } | |
064af421 | 3187 | |
982697a4 | 3188 | ofpmp_init(&replies, request); |
7f05e7ab | 3189 | if (port_no != OFPP_ANY) { |
f8e4867e | 3190 | port = ofproto_get_port(p, port_no); |
abaad8cf | 3191 | if (port) { |
63f2140a | 3192 | append_port_stat(port, &replies); |
abaad8cf JP |
3193 | } |
3194 | } else { | |
4e8e4213 | 3195 | HMAP_FOR_EACH (port, hmap_node, &p->ports) { |
63f2140a | 3196 | append_port_stat(port, &replies); |
abaad8cf | 3197 | } |
064af421 BP |
3198 | } |
3199 | ||
63f2140a | 3200 | ofconn_send_replies(ofconn, &replies); |
064af421 BP |
3201 | return 0; |
3202 | } | |
3203 | ||
2be393ed JP |
3204 | static enum ofperr |
3205 | handle_port_desc_stats_request(struct ofconn *ofconn, | |
982697a4 | 3206 | const struct ofp_header *request) |
2be393ed JP |
3207 | { |
3208 | struct ofproto *p = ofconn_get_ofproto(ofconn); | |
3209 | struct ofport *port; | |
3210 | struct list replies; | |
3211 | ||
982697a4 | 3212 | ofpmp_init(&replies, request); |
2be393ed | 3213 | HMAP_FOR_EACH (port, hmap_node, &p->ports) { |
e28ac5cf | 3214 | ofputil_append_port_desc_stats_reply(&port->pp, &replies); |
2be393ed JP |
3215 | } |
3216 | ||
3217 | ofconn_send_replies(ofconn, &replies); | |
3218 | return 0; | |
3219 | } | |
3220 | ||
98eaac36 JR |
3221 | static uint32_t |
3222 | hash_cookie(ovs_be64 cookie) | |
3223 | { | |
965607c8 | 3224 | return hash_uint64((OVS_FORCE uint64_t)cookie); |
98eaac36 JR |
3225 | } |
3226 | ||
3227 | static void | |
3228 | cookies_insert(struct ofproto *ofproto, struct rule *rule) | |
2c916028 | 3229 | OVS_REQUIRES(ofproto_mutex) |
98eaac36 JR |
3230 | { |
3231 | hindex_insert(&ofproto->cookies, &rule->cookie_node, | |
3232 | hash_cookie(rule->flow_cookie)); | |
3233 | } | |
3234 | ||
3235 | static void | |
3236 | cookies_remove(struct ofproto *ofproto, struct rule *rule) | |
2c916028 | 3237 | OVS_REQUIRES(ofproto_mutex) |
98eaac36 JR |
3238 | { |
3239 | hindex_remove(&ofproto->cookies, &rule->cookie_node); | |
3240 | } | |
3241 | ||
3242 | static void | |
3243 | ofproto_rule_change_cookie(struct ofproto *ofproto, struct rule *rule, | |
3244 | ovs_be64 new_cookie) | |
15aaf599 | 3245 | OVS_REQUIRES(ofproto_mutex) |
98eaac36 JR |
3246 | { |
3247 | if (new_cookie != rule->flow_cookie) { | |
3248 | cookies_remove(ofproto, rule); | |
3249 | ||
c7c9a7c8 | 3250 | ovs_mutex_lock(&rule->mutex); |
98eaac36 | 3251 | rule->flow_cookie = new_cookie; |
c7c9a7c8 | 3252 | ovs_mutex_unlock(&rule->mutex); |
98eaac36 JR |
3253 | |
3254 | cookies_insert(ofproto, rule); | |
3255 | } | |
3256 | } | |
3257 | ||
c6ebb8fb | 3258 | static void |
65e0be10 BP |
3259 | calc_duration(long long int start, long long int now, |
3260 | uint32_t *sec, uint32_t *nsec) | |
c6ebb8fb | 3261 | { |
f27f2134 | 3262 | long long int msecs = now - start; |
588cd7b5 BP |
3263 | *sec = msecs / 1000; |
3264 | *nsec = (msecs % 1000) * (1000 * 1000); | |
3265 | } | |
3266 | ||
48266274 | 3267 | /* Checks whether 'table_id' is 0xff or a valid table ID in 'ofproto'. Returns |
554764d1 SH |
3268 | * true if 'table_id' is OK, false otherwise. */ |
3269 | static bool | |
48266274 BP |
3270 | check_table_id(const struct ofproto *ofproto, uint8_t table_id) |
3271 | { | |
554764d1 | 3272 | return table_id == OFPTT_ALL || table_id < ofproto->n_tables; |
48266274 BP |
3273 | } |
3274 | ||
5c67e4af | 3275 | static struct oftable * |
d4ce8a49 | 3276 | next_visible_table(const struct ofproto *ofproto, uint8_t table_id) |
5c67e4af BP |
3277 | { |
3278 | struct oftable *table; | |
3279 | ||
3280 | for (table = &ofproto->tables[table_id]; | |
3281 | table < &ofproto->tables[ofproto->n_tables]; | |
3282 | table++) { | |
3283 | if (!(table->flags & OFTABLE_HIDDEN)) { | |
3284 | return table; | |
3285 | } | |
3286 | } | |
3287 | ||
3288 | return NULL; | |
3289 | } | |
3290 | ||
d0918789 | 3291 | static struct oftable * |
d4ce8a49 | 3292 | first_matching_table(const struct ofproto *ofproto, uint8_t table_id) |
064af421 | 3293 | { |
6c1491fb | 3294 | if (table_id == 0xff) { |
5c67e4af | 3295 | return next_visible_table(ofproto, 0); |
6c1491fb BP |
3296 | } else if (table_id < ofproto->n_tables) { |
3297 | return &ofproto->tables[table_id]; | |
a02e5331 | 3298 | } else { |
6c1491fb | 3299 | return NULL; |
a02e5331 | 3300 | } |
064af421 BP |
3301 | } |
3302 | ||
d0918789 | 3303 | static struct oftable * |
d4ce8a49 BP |
3304 | next_matching_table(const struct ofproto *ofproto, |
3305 | const struct oftable *table, uint8_t table_id) | |
6c1491fb | 3306 | { |
5c67e4af BP |
3307 | return (table_id == 0xff |
3308 | ? next_visible_table(ofproto, (table - ofproto->tables) + 1) | |
6c1491fb BP |
3309 | : NULL); |
3310 | } | |
3311 | ||
d0918789 | 3312 | /* Assigns TABLE to each oftable, in turn, that matches TABLE_ID in OFPROTO: |
6c1491fb BP |
3313 | * |
3314 | * - If TABLE_ID is 0xff, this iterates over every classifier table in | |
5c67e4af | 3315 | * OFPROTO, skipping tables marked OFTABLE_HIDDEN. |
6c1491fb BP |
3316 | * |
3317 | * - If TABLE_ID is the number of a table in OFPROTO, then the loop iterates | |
5c67e4af BP |
3318 | * only once, for that table. (This can be used to access tables marked |
3319 | * OFTABLE_HIDDEN.) | |
6c1491fb | 3320 | * |
48266274 BP |
3321 | * - Otherwise, TABLE_ID isn't valid for OFPROTO, so the loop won't be |
3322 | * entered at all. (Perhaps you should have validated TABLE_ID with | |
3323 | * check_table_id().) | |
6c1491fb BP |
3324 | * |
3325 | * All parameters are evaluated multiple times. | |
3326 | */ | |
d0918789 BP |
3327 | #define FOR_EACH_MATCHING_TABLE(TABLE, TABLE_ID, OFPROTO) \ |
3328 | for ((TABLE) = first_matching_table(OFPROTO, TABLE_ID); \ | |
3329 | (TABLE) != NULL; \ | |
3330 | (TABLE) = next_matching_table(OFPROTO, TABLE, TABLE_ID)) | |
6c1491fb | 3331 | |
a9b22b7f BP |
3332 | /* Initializes 'criteria' in a straightforward way based on the other |
3333 | * parameters. | |
3334 | * | |
3335 | * For "loose" matching, the 'priority' parameter is unimportant and may be | |
3336 | * supplied as 0. */ | |
3337 | static void | |
3338 | rule_criteria_init(struct rule_criteria *criteria, uint8_t table_id, | |
3339 | const struct match *match, unsigned int priority, | |
3340 | ovs_be64 cookie, ovs_be64 cookie_mask, | |
3341 | ofp_port_t out_port, uint32_t out_group) | |
3342 | { | |
3343 | criteria->table_id = table_id; | |
3344 | cls_rule_init(&criteria->cr, match, priority); | |
3345 | criteria->cookie = cookie; | |
3346 | criteria->cookie_mask = cookie_mask; | |
3347 | criteria->out_port = out_port; | |
3348 | criteria->out_group = out_group; | |
3349 | } | |
3350 | ||
3351 | static void | |
3352 | rule_criteria_destroy(struct rule_criteria *criteria) | |
3353 | { | |
3354 | cls_rule_destroy(&criteria->cr); | |
3355 | } | |
3356 | ||
a8e547c1 BP |
3357 | void |
3358 | rule_collection_init(struct rule_collection *rules) | |
3359 | { | |
3360 | rules->rules = rules->stub; | |
3361 | rules->n = 0; | |
3362 | rules->capacity = ARRAY_SIZE(rules->stub); | |
3363 | } | |
3364 | ||
3365 | void | |
3366 | rule_collection_add(struct rule_collection *rules, struct rule *rule) | |
3367 | { | |
3368 | if (rules->n >= rules->capacity) { | |
3369 | size_t old_size, new_size; | |
3370 | ||
3371 | old_size = rules->capacity * sizeof *rules->rules; | |
3372 | rules->capacity *= 2; | |
3373 | new_size = rules->capacity * sizeof *rules->rules; | |
3374 | ||
3375 | if (rules->rules == rules->stub) { | |
3376 | rules->rules = xmalloc(new_size); | |
3377 | memcpy(rules->rules, rules->stub, old_size); | |
3378 | } else { | |
3379 | rules->rules = xrealloc(rules->rules, new_size); | |
3380 | } | |
3381 | } | |
3382 | ||
3383 | rules->rules[rules->n++] = rule; | |
3384 | } | |
3385 | ||
15aaf599 BP |
3386 | void |
3387 | rule_collection_ref(struct rule_collection *rules) | |
3388 | OVS_REQUIRES(ofproto_mutex) | |
3389 | { | |
3390 | size_t i; | |
3391 | ||
3392 | for (i = 0; i < rules->n; i++) { | |
3393 | ofproto_rule_ref(rules->rules[i]); | |
3394 | } | |
3395 | } | |
3396 | ||
3397 | void | |
3398 | rule_collection_unref(struct rule_collection *rules) | |
3399 | { | |
3400 | size_t i; | |
3401 | ||
3402 | for (i = 0; i < rules->n; i++) { | |
3403 | ofproto_rule_unref(rules->rules[i]); | |
3404 | } | |
3405 | } | |
3406 | ||
a8e547c1 BP |
3407 | void |
3408 | rule_collection_destroy(struct rule_collection *rules) | |
3409 | { | |
3410 | if (rules->rules != rules->stub) { | |
3411 | free(rules->rules); | |
3412 | } | |
3413 | } | |
3414 | ||
6c1d7642 | 3415 | static enum ofperr |
a9b22b7f | 3416 | collect_rule(struct rule *rule, const struct rule_criteria *c, |
a8e547c1 | 3417 | struct rule_collection *rules) |
15aaf599 | 3418 | OVS_REQUIRES(ofproto_mutex) |
6c1d7642 | 3419 | { |
3e8116d9 BP |
3420 | /* We ordinarily want to skip hidden rules, but there has to be a way for |
3421 | * code internal to OVS to modify and delete them, so if the criteria | |
3422 | * specify a priority that can only be for a hidden flow, then allow hidden | |
3423 | * rules to be selected. (This doesn't allow OpenFlow clients to meddle | |
3424 | * with hidden flows because OpenFlow uses only a 16-bit field to specify | |
3425 | * priority.) */ | |
3426 | if (ofproto_rule_is_hidden(rule) && c->cr.priority <= UINT16_MAX) { | |
6c1d7642 BP |
3427 | return 0; |
3428 | } else if (rule->pending) { | |
3429 | return OFPROTO_POSTPONE; | |
3430 | } else { | |
a9b22b7f BP |
3431 | if ((c->table_id == rule->table_id || c->table_id == 0xff) |
3432 | && ofproto_rule_has_out_port(rule, c->out_port) | |
3433 | && ofproto_rule_has_out_group(rule, c->out_group) | |
3434 | && !((rule->flow_cookie ^ c->cookie) & c->cookie_mask)) { | |
a8e547c1 | 3435 | rule_collection_add(rules, rule); |
6c1d7642 BP |
3436 | } |
3437 | return 0; | |
3438 | } | |
3439 | } | |
3440 | ||
a9b22b7f BP |
3441 | /* Searches 'ofproto' for rules that match the criteria in 'criteria'. Matches |
3442 | * on classifiers rules are done in the "loose" way required for OpenFlow | |
3443 | * OFPFC_MODIFY and OFPFC_DELETE requests. Puts the selected rules on list | |
9ed18e46 BP |
3444 | * 'rules'. |
3445 | * | |
9ed18e46 BP |
3446 | * Hidden rules are always omitted. |
3447 | * | |
3448 | * Returns 0 on success, otherwise an OpenFlow error code. */ | |
90bf1e07 | 3449 | static enum ofperr |
a9b22b7f | 3450 | collect_rules_loose(struct ofproto *ofproto, |
a8e547c1 BP |
3451 | const struct rule_criteria *criteria, |
3452 | struct rule_collection *rules) | |
15aaf599 | 3453 | OVS_REQUIRES(ofproto_mutex) |
9ed18e46 | 3454 | { |
d0918789 | 3455 | struct oftable *table; |
554764d1 | 3456 | enum ofperr error = 0; |
48266274 | 3457 | |
a8e547c1 BP |
3458 | rule_collection_init(rules); |
3459 | ||
554764d1 SH |
3460 | if (!check_table_id(ofproto, criteria->table_id)) { |
3461 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
a8e547c1 | 3462 | goto exit; |
48266274 | 3463 | } |
9ed18e46 | 3464 | |
b8266395 | 3465 | if (criteria->cookie_mask == OVS_BE64_MAX) { |
98eaac36 JR |
3466 | struct rule *rule; |
3467 | ||
a9b22b7f BP |
3468 | HINDEX_FOR_EACH_WITH_HASH (rule, cookie_node, |
3469 | hash_cookie(criteria->cookie), | |
98eaac36 | 3470 | &ofproto->cookies) { |
a9b22b7f BP |
3471 | if (cls_rule_is_loose_match(&rule->cr, &criteria->cr.match)) { |
3472 | error = collect_rule(rule, criteria, rules); | |
6c1d7642 BP |
3473 | if (error) { |
3474 | break; | |
98eaac36 JR |
3475 | } |
3476 | } | |
3477 | } | |
6c1d7642 | 3478 | } else { |
a9b22b7f | 3479 | FOR_EACH_MATCHING_TABLE (table, criteria->table_id, ofproto) { |
6c1d7642 BP |
3480 | struct cls_cursor cursor; |
3481 | struct rule *rule; | |
9ed18e46 | 3482 | |
06f81620 | 3483 | fat_rwlock_rdlock(&table->cls.rwlock); |
a9b22b7f | 3484 | cls_cursor_init(&cursor, &table->cls, &criteria->cr); |
6c1d7642 | 3485 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { |
a9b22b7f | 3486 | error = collect_rule(rule, criteria, rules); |
6c1d7642 BP |
3487 | if (error) { |
3488 | break; | |
3489 | } | |
9ed18e46 | 3490 | } |
06f81620 | 3491 | fat_rwlock_unlock(&table->cls.rwlock); |
9ed18e46 BP |
3492 | } |
3493 | } | |
48d28ac1 | 3494 | |
a8e547c1 BP |
3495 | exit: |
3496 | if (error) { | |
3497 | rule_collection_destroy(rules); | |
3498 | } | |
48d28ac1 | 3499 | return error; |
9ed18e46 BP |
3500 | } |
3501 | ||
a9b22b7f BP |
3502 | /* Searches 'ofproto' for rules that match the criteria in 'criteria'. Matches |
3503 | * on classifiers rules are done in the "strict" way required for OpenFlow | |
3504 | * OFPFC_MODIFY_STRICT and OFPFC_DELETE_STRICT requests. Puts the selected | |
3505 | * rules on list 'rules'. | |
9ed18e46 BP |
3506 | * |
3507 | * Hidden rules are always omitted. | |
3508 | * | |
3509 | * Returns 0 on success, otherwise an OpenFlow error code. */ | |
90bf1e07 | 3510 | static enum ofperr |
a9b22b7f | 3511 | collect_rules_strict(struct ofproto *ofproto, |
a8e547c1 BP |
3512 | const struct rule_criteria *criteria, |
3513 | struct rule_collection *rules) | |
15aaf599 | 3514 | OVS_REQUIRES(ofproto_mutex) |
9ed18e46 | 3515 | { |
d0918789 | 3516 | struct oftable *table; |
554764d1 | 3517 | int error = 0; |
48266274 | 3518 | |
a8e547c1 BP |
3519 | rule_collection_init(rules); |
3520 | ||
554764d1 SH |
3521 | if (!check_table_id(ofproto, criteria->table_id)) { |
3522 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
a8e547c1 | 3523 | goto exit; |
48266274 | 3524 | } |
9ed18e46 | 3525 | |
b8266395 | 3526 | if (criteria->cookie_mask == OVS_BE64_MAX) { |
98eaac36 JR |
3527 | struct rule *rule; |
3528 | ||
a9b22b7f BP |
3529 | HINDEX_FOR_EACH_WITH_HASH (rule, cookie_node, |
3530 | hash_cookie(criteria->cookie), | |
98eaac36 | 3531 | &ofproto->cookies) { |
a9b22b7f BP |
3532 | if (cls_rule_equal(&rule->cr, &criteria->cr)) { |
3533 | error = collect_rule(rule, criteria, rules); | |
6c1d7642 BP |
3534 | if (error) { |
3535 | break; | |
98eaac36 JR |
3536 | } |
3537 | } | |
3538 | } | |
6c1d7642 | 3539 | } else { |
a9b22b7f | 3540 | FOR_EACH_MATCHING_TABLE (table, criteria->table_id, ofproto) { |
6c1d7642 | 3541 | struct rule *rule; |
9ed18e46 | 3542 | |
06f81620 | 3543 | fat_rwlock_rdlock(&table->cls.rwlock); |
a9b22b7f BP |
3544 | rule = rule_from_cls_rule(classifier_find_rule_exactly( |
3545 | &table->cls, &criteria->cr)); | |
06f81620 | 3546 | fat_rwlock_unlock(&table->cls.rwlock); |
6c1d7642 | 3547 | if (rule) { |
a9b22b7f | 3548 | error = collect_rule(rule, criteria, rules); |
6c1d7642 BP |
3549 | if (error) { |
3550 | break; | |
3551 | } | |
9ed18e46 BP |
3552 | } |
3553 | } | |
3554 | } | |
48d28ac1 | 3555 | |
a8e547c1 BP |
3556 | exit: |
3557 | if (error) { | |
3558 | rule_collection_destroy(rules); | |
3559 | } | |
6c1d7642 | 3560 | return error; |
9ed18e46 BP |
3561 | } |
3562 | ||
f27f2134 BP |
3563 | /* Returns 'age_ms' (a duration in milliseconds), converted to seconds and |
3564 | * forced into the range of a uint16_t. */ | |
3565 | static int | |
3566 | age_secs(long long int age_ms) | |
3567 | { | |
3568 | return (age_ms < 0 ? 0 | |
3569 | : age_ms >= UINT16_MAX * 1000 ? UINT16_MAX | |
3570 | : (unsigned int) age_ms / 1000); | |
3571 | } | |
3572 | ||
90bf1e07 | 3573 | static enum ofperr |
63f2140a | 3574 | handle_flow_stats_request(struct ofconn *ofconn, |
982697a4 | 3575 | const struct ofp_header *request) |
15aaf599 | 3576 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 3577 | { |
64ff1d96 | 3578 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
81d1ea94 | 3579 | struct ofputil_flow_stats_request fsr; |
a9b22b7f | 3580 | struct rule_criteria criteria; |
a8e547c1 | 3581 | struct rule_collection rules; |
63f2140a | 3582 | struct list replies; |
90bf1e07 | 3583 | enum ofperr error; |
a8e547c1 | 3584 | size_t i; |
09246b99 | 3585 | |
982697a4 | 3586 | error = ofputil_decode_flow_stats_request(&fsr, request); |
09246b99 BP |
3587 | if (error) { |
3588 | return error; | |
3589 | } | |
3590 | ||
a9b22b7f BP |
3591 | rule_criteria_init(&criteria, fsr.table_id, &fsr.match, 0, fsr.cookie, |
3592 | fsr.cookie_mask, fsr.out_port, fsr.out_group); | |
15aaf599 BP |
3593 | |
3594 | ovs_mutex_lock(&ofproto_mutex); | |
a9b22b7f BP |
3595 | error = collect_rules_loose(ofproto, &criteria, &rules); |
3596 | rule_criteria_destroy(&criteria); | |
15aaf599 BP |
3597 | if (!error) { |
3598 | rule_collection_ref(&rules); | |
3599 | } | |
3600 | ovs_mutex_unlock(&ofproto_mutex); | |
3601 | ||
9ed18e46 BP |
3602 | if (error) { |
3603 | return error; | |
3604 | } | |
5ecc9d81 | 3605 | |
982697a4 | 3606 | ofpmp_init(&replies, request); |
a8e547c1 BP |
3607 | for (i = 0; i < rules.n; i++) { |
3608 | struct rule *rule = rules.rules[i]; | |
f27f2134 | 3609 | long long int now = time_msec(); |
9ed18e46 | 3610 | struct ofputil_flow_stats fs; |
15aaf599 | 3611 | long long int created, used, modified; |
dc723c44 | 3612 | const struct rule_actions *actions; |
15aaf599 | 3613 | enum ofputil_flow_mod_flags flags; |
a3779dbc | 3614 | |
d10976b7 | 3615 | ovs_mutex_lock(&rule->mutex); |
15aaf599 | 3616 | fs.cookie = rule->flow_cookie; |
a3779dbc EJ |
3617 | fs.idle_timeout = rule->idle_timeout; |
3618 | fs.hard_timeout = rule->hard_timeout; | |
15aaf599 | 3619 | created = rule->created; |
15aaf599 | 3620 | modified = rule->modified; |
06a0f3e2 | 3621 | actions = rule_get_actions(rule); |
15aaf599 | 3622 | flags = rule->flags; |
d10976b7 | 3623 | ovs_mutex_unlock(&rule->mutex); |
a3779dbc | 3624 | |
dc437090 JR |
3625 | ofproto->ofproto_class->rule_get_stats(rule, &fs.packet_count, |
3626 | &fs.byte_count, &used); | |
3627 | ||
15aaf599 BP |
3628 | minimatch_expand(&rule->cr.match, &fs.match); |
3629 | fs.table_id = rule->table_id; | |
3630 | calc_duration(created, now, &fs.duration_sec, &fs.duration_nsec); | |
3631 | fs.priority = rule->cr.priority; | |
3632 | fs.idle_age = age_secs(now - used); | |
3633 | fs.hard_age = age_secs(now - modified); | |
15aaf599 BP |
3634 | fs.ofpacts = actions->ofpacts; |
3635 | fs.ofpacts_len = actions->ofpacts_len; | |
3f517bcd | 3636 | |
15aaf599 | 3637 | fs.flags = flags; |
9ed18e46 | 3638 | ofputil_append_flow_stats_reply(&fs, &replies); |
3c4486a5 | 3639 | } |
15aaf599 BP |
3640 | |
3641 | rule_collection_unref(&rules); | |
a8e547c1 BP |
3642 | rule_collection_destroy(&rules); |
3643 | ||
63f2140a | 3644 | ofconn_send_replies(ofconn, &replies); |
5ecc9d81 | 3645 | |
09246b99 BP |
3646 | return 0; |
3647 | } | |
3648 | ||
4f2cad2c | 3649 | static void |
3394b5b6 | 3650 | flow_stats_ds(struct rule *rule, struct ds *results) |
4f2cad2c | 3651 | { |
4f2cad2c | 3652 | uint64_t packet_count, byte_count; |
dc723c44 | 3653 | const struct rule_actions *actions; |
dc437090 | 3654 | long long int created, used; |
4f2cad2c | 3655 | |
dc437090 JR |
3656 | rule->ofproto->ofproto_class->rule_get_stats(rule, &packet_count, |
3657 | &byte_count, &used); | |
4f2cad2c | 3658 | |
15aaf599 | 3659 | ovs_mutex_lock(&rule->mutex); |
06a0f3e2 | 3660 | actions = rule_get_actions(rule); |
15aaf599 BP |
3661 | created = rule->created; |
3662 | ovs_mutex_unlock(&rule->mutex); | |
3663 | ||
6c1491fb BP |
3664 | if (rule->table_id != 0) { |
3665 | ds_put_format(results, "table_id=%"PRIu8", ", rule->table_id); | |
3666 | } | |
15aaf599 | 3667 | ds_put_format(results, "duration=%llds, ", (time_msec() - created) / 1000); |
4f2cad2c JP |
3668 | ds_put_format(results, "n_packets=%"PRIu64", ", packet_count); |
3669 | ds_put_format(results, "n_bytes=%"PRIu64", ", byte_count); | |
cb833cf6 | 3670 | cls_rule_format(&rule->cr, results); |
a5df0e72 | 3671 | ds_put_char(results, ','); |
15aaf599 | 3672 | |
455ecd77 | 3673 | ds_put_cstr(results, "actions="); |
15aaf599 BP |
3674 | ofpacts_format(actions->ofpacts, actions->ofpacts_len, results); |
3675 | ||
4f2cad2c JP |
3676 | ds_put_cstr(results, "\n"); |
3677 | } | |
3678 | ||
d295e8e9 | 3679 | /* Adds a pretty-printed description of all flows to 'results', including |
ee8b231c | 3680 | * hidden flows (e.g., set up by in-band control). */ |
4f2cad2c JP |
3681 | void |
3682 | ofproto_get_all_flows(struct ofproto *p, struct ds *results) | |
3683 | { | |
d0918789 | 3684 | struct oftable *table; |
6c1491fb | 3685 | |
d0918789 | 3686 | OFPROTO_FOR_EACH_TABLE (table, p) { |
6c1491fb BP |
3687 | struct cls_cursor cursor; |
3688 | struct rule *rule; | |
064af421 | 3689 | |
06f81620 | 3690 | fat_rwlock_rdlock(&table->cls.rwlock); |
d0918789 | 3691 | cls_cursor_init(&cursor, &table->cls, NULL); |
6c1491fb BP |
3692 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { |
3693 | flow_stats_ds(rule, results); | |
3694 | } | |
06f81620 | 3695 | fat_rwlock_unlock(&table->cls.rwlock); |
064af421 | 3696 | } |
064af421 BP |
3697 | } |
3698 | ||
b5827b24 BP |
3699 | /* Obtains the NetFlow engine type and engine ID for 'ofproto' into |
3700 | * '*engine_type' and '*engine_id', respectively. */ | |
3701 | void | |
3702 | ofproto_get_netflow_ids(const struct ofproto *ofproto, | |
3703 | uint8_t *engine_type, uint8_t *engine_id) | |
3704 | { | |
abe529af | 3705 | ofproto->ofproto_class->get_netflow_ids(ofproto, engine_type, engine_id); |
b5827b24 BP |
3706 | } |
3707 | ||
88bf179a AW |
3708 | /* Checks the status of CFM configured on 'ofp_port' within 'ofproto'. |
3709 | * Returns 0 if the port's CFM status was successfully stored into | |
3710 | * '*status'. Returns positive errno if the port did not have CFM | |
3711 | * configured. Returns negative number if there is no status change | |
3712 | * since last update. | |
9a9e3786 | 3713 | * |
88bf179a AW |
3714 | * The caller must provide and own '*status', and must free 'status->rmps'. |
3715 | * '*status' is indeterminate if the return value is non-zero. */ | |
3716 | int | |
4e022ec0 | 3717 | ofproto_port_get_cfm_status(const struct ofproto *ofproto, ofp_port_t ofp_port, |
9a9e3786 | 3718 | struct ofproto_cfm_status *status) |
3967a833 MM |
3719 | { |
3720 | struct ofport *ofport = ofproto_get_port(ofproto, ofp_port); | |
88bf179a AW |
3721 | return (ofport && ofproto->ofproto_class->get_cfm_status |
3722 | ? ofproto->ofproto_class->get_cfm_status(ofport, status) | |
3723 | : EOPNOTSUPP); | |
3967a833 MM |
3724 | } |
3725 | ||
90bf1e07 | 3726 | static enum ofperr |
76c93b22 | 3727 | handle_aggregate_stats_request(struct ofconn *ofconn, |
982697a4 | 3728 | const struct ofp_header *oh) |
15aaf599 | 3729 | OVS_EXCLUDED(ofproto_mutex) |
27d34fce | 3730 | { |
76c93b22 | 3731 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
81d1ea94 | 3732 | struct ofputil_flow_stats_request request; |
76c93b22 | 3733 | struct ofputil_aggregate_stats stats; |
5e9d0469 | 3734 | bool unknown_packets, unknown_bytes; |
a9b22b7f | 3735 | struct rule_criteria criteria; |
a8e547c1 | 3736 | struct rule_collection rules; |
76c93b22 | 3737 | struct ofpbuf *reply; |
90bf1e07 | 3738 | enum ofperr error; |
a8e547c1 | 3739 | size_t i; |
27d34fce | 3740 | |
982697a4 | 3741 | error = ofputil_decode_flow_stats_request(&request, oh); |
76c93b22 BP |
3742 | if (error) { |
3743 | return error; | |
3744 | } | |
5ecc9d81 | 3745 | |
a9b22b7f BP |
3746 | rule_criteria_init(&criteria, request.table_id, &request.match, 0, |
3747 | request.cookie, request.cookie_mask, | |
3748 | request.out_port, request.out_group); | |
15aaf599 BP |
3749 | |
3750 | ovs_mutex_lock(&ofproto_mutex); | |
a9b22b7f BP |
3751 | error = collect_rules_loose(ofproto, &criteria, &rules); |
3752 | rule_criteria_destroy(&criteria); | |
15aaf599 BP |
3753 | if (!error) { |
3754 | rule_collection_ref(&rules); | |
3755 | } | |
3756 | ovs_mutex_unlock(&ofproto_mutex); | |
3757 | ||
9ed18e46 BP |
3758 | if (error) { |
3759 | return error; | |
3760 | } | |
3c4486a5 | 3761 | |
9ed18e46 | 3762 | memset(&stats, 0, sizeof stats); |
5e9d0469 | 3763 | unknown_packets = unknown_bytes = false; |
a8e547c1 BP |
3764 | for (i = 0; i < rules.n; i++) { |
3765 | struct rule *rule = rules.rules[i]; | |
9ed18e46 BP |
3766 | uint64_t packet_count; |
3767 | uint64_t byte_count; | |
dc437090 | 3768 | long long int used; |
5ecc9d81 | 3769 | |
9ed18e46 | 3770 | ofproto->ofproto_class->rule_get_stats(rule, &packet_count, |
dc437090 | 3771 | &byte_count, &used); |
5ecc9d81 | 3772 | |
5e9d0469 BP |
3773 | if (packet_count == UINT64_MAX) { |
3774 | unknown_packets = true; | |
3775 | } else { | |
3776 | stats.packet_count += packet_count; | |
3777 | } | |
3778 | ||
3779 | if (byte_count == UINT64_MAX) { | |
3780 | unknown_bytes = true; | |
3781 | } else { | |
3782 | stats.byte_count += byte_count; | |
3783 | } | |
3784 | ||
9ed18e46 | 3785 | stats.flow_count++; |
3c4486a5 | 3786 | } |
5e9d0469 BP |
3787 | if (unknown_packets) { |
3788 | stats.packet_count = UINT64_MAX; | |
3789 | } | |
3790 | if (unknown_bytes) { | |
3791 | stats.byte_count = UINT64_MAX; | |
3792 | } | |
27d34fce | 3793 | |
15aaf599 | 3794 | rule_collection_unref(&rules); |
a8e547c1 BP |
3795 | rule_collection_destroy(&rules); |
3796 | ||
982697a4 | 3797 | reply = ofputil_encode_aggregate_stats_reply(&stats, oh); |
76c93b22 | 3798 | ofconn_send_reply(ofconn, reply); |
09246b99 BP |
3799 | |
3800 | return 0; | |
3801 | } | |
3802 | ||
c1c9c9c4 | 3803 | struct queue_stats_cbdata { |
ca0f572c | 3804 | struct ofport *ofport; |
63f2140a | 3805 | struct list replies; |
6dc34a0d | 3806 | long long int now; |
c1c9c9c4 BP |
3807 | }; |
3808 | ||
3809 | static void | |
db9220c3 | 3810 | put_queue_stats(struct queue_stats_cbdata *cbdata, uint32_t queue_id, |
c1c9c9c4 BP |
3811 | const struct netdev_queue_stats *stats) |
3812 | { | |
6dc34a0d | 3813 | struct ofputil_queue_stats oqs; |
c1c9c9c4 | 3814 | |
6dc34a0d BP |
3815 | oqs.port_no = cbdata->ofport->pp.port_no; |
3816 | oqs.queue_id = queue_id; | |
3817 | oqs.tx_bytes = stats->tx_bytes; | |
3818 | oqs.tx_packets = stats->tx_packets; | |
3819 | oqs.tx_errors = stats->tx_errors; | |
3820 | if (stats->created != LLONG_MIN) { | |
3821 | calc_duration(stats->created, cbdata->now, | |
3822 | &oqs.duration_sec, &oqs.duration_nsec); | |
3823 | } else { | |
3824 | oqs.duration_sec = oqs.duration_nsec = UINT32_MAX; | |
3825 | } | |
64626975 | 3826 | ofputil_append_queue_stat(&cbdata->replies, &oqs); |
c1c9c9c4 BP |
3827 | } |
3828 | ||
3829 | static void | |
db9220c3 | 3830 | handle_queue_stats_dump_cb(uint32_t queue_id, |
c1c9c9c4 BP |
3831 | struct netdev_queue_stats *stats, |
3832 | void *cbdata_) | |
3833 | { | |
3834 | struct queue_stats_cbdata *cbdata = cbdata_; | |
3835 | ||
3836 | put_queue_stats(cbdata, queue_id, stats); | |
3837 | } | |
3838 | ||
0414d158 | 3839 | static enum ofperr |
ca0f572c | 3840 | handle_queue_stats_for_port(struct ofport *port, uint32_t queue_id, |
c1c9c9c4 BP |
3841 | struct queue_stats_cbdata *cbdata) |
3842 | { | |
ca0f572c | 3843 | cbdata->ofport = port; |
c1c9c9c4 BP |
3844 | if (queue_id == OFPQ_ALL) { |
3845 | netdev_dump_queue_stats(port->netdev, | |
3846 | handle_queue_stats_dump_cb, cbdata); | |
3847 | } else { | |
3848 | struct netdev_queue_stats stats; | |
3849 | ||
1ac788f6 BP |
3850 | if (!netdev_get_queue_stats(port->netdev, queue_id, &stats)) { |
3851 | put_queue_stats(cbdata, queue_id, &stats); | |
0414d158 BP |
3852 | } else { |
3853 | return OFPERR_OFPQOFC_BAD_QUEUE; | |
1ac788f6 | 3854 | } |
c1c9c9c4 | 3855 | } |
0414d158 | 3856 | return 0; |
c1c9c9c4 BP |
3857 | } |
3858 | ||
90bf1e07 | 3859 | static enum ofperr |
63f2140a | 3860 | handle_queue_stats_request(struct ofconn *ofconn, |
982697a4 | 3861 | const struct ofp_header *rq) |
c1c9c9c4 | 3862 | { |
64ff1d96 | 3863 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
c1c9c9c4 | 3864 | struct queue_stats_cbdata cbdata; |
0414d158 | 3865 | struct ofport *port; |
0414d158 | 3866 | enum ofperr error; |
64626975 | 3867 | struct ofputil_queue_stats_request oqsr; |
c1c9c9c4 | 3868 | |
c1c9c9c4 BP |
3869 | COVERAGE_INC(ofproto_queue_req); |
3870 | ||
982697a4 | 3871 | ofpmp_init(&cbdata.replies, rq); |
6dc34a0d | 3872 | cbdata.now = time_msec(); |
c1c9c9c4 | 3873 | |
64626975 SH |
3874 | error = ofputil_decode_queue_stats_request(rq, &oqsr); |
3875 | if (error) { | |
3876 | return error; | |
3877 | } | |
3878 | ||
7f05e7ab | 3879 | if (oqsr.port_no == OFPP_ANY) { |
0414d158 | 3880 | error = OFPERR_OFPQOFC_BAD_QUEUE; |
4e8e4213 | 3881 | HMAP_FOR_EACH (port, hmap_node, &ofproto->ports) { |
64626975 | 3882 | if (!handle_queue_stats_for_port(port, oqsr.queue_id, &cbdata)) { |
0414d158 BP |
3883 | error = 0; |
3884 | } | |
c1c9c9c4 | 3885 | } |
0414d158 | 3886 | } else { |
64626975 | 3887 | port = ofproto_get_port(ofproto, oqsr.port_no); |
0414d158 | 3888 | error = (port |
64626975 | 3889 | ? handle_queue_stats_for_port(port, oqsr.queue_id, &cbdata) |
0414d158 BP |
3890 | : OFPERR_OFPQOFC_BAD_PORT); |
3891 | } | |
3892 | if (!error) { | |
3893 | ofconn_send_replies(ofconn, &cbdata.replies); | |
c1c9c9c4 | 3894 | } else { |
63f2140a | 3895 | ofpbuf_list_delete(&cbdata.replies); |
c1c9c9c4 | 3896 | } |
c1c9c9c4 | 3897 | |
0414d158 | 3898 | return error; |
c1c9c9c4 | 3899 | } |
7ee20df1 BP |
3900 | |
3901 | static bool | |
3902 | is_flow_deletion_pending(const struct ofproto *ofproto, | |
3903 | const struct cls_rule *cls_rule, | |
3904 | uint8_t table_id) | |
15aaf599 | 3905 | OVS_REQUIRES(ofproto_mutex) |
7ee20df1 BP |
3906 | { |
3907 | if (!hmap_is_empty(&ofproto->deletions)) { | |
3908 | struct ofoperation *op; | |
3909 | ||
3910 | HMAP_FOR_EACH_WITH_HASH (op, hmap_node, | |
3911 | cls_rule_hash(cls_rule, table_id), | |
3912 | &ofproto->deletions) { | |
a6fcf462 EJ |
3913 | if (op->rule->table_id == table_id |
3914 | && cls_rule_equal(cls_rule, &op->rule->cr)) { | |
7ee20df1 BP |
3915 | return true; |
3916 | } | |
3917 | } | |
3918 | } | |
3919 | ||
3920 | return false; | |
3921 | } | |
3922 | ||
2e31a9b8 BP |
3923 | static bool |
3924 | should_evict_a_rule(struct oftable *table, unsigned int extra_space) | |
15aaf599 BP |
3925 | OVS_REQUIRES(ofproto_mutex) |
3926 | OVS_NO_THREAD_SAFETY_ANALYSIS | |
8037acb4 | 3927 | { |
15aaf599 | 3928 | return classifier_count(&table->cls) + extra_space > table->max_flows; |
2e31a9b8 | 3929 | } |
8037acb4 | 3930 | |
2e31a9b8 BP |
3931 | static enum ofperr |
3932 | evict_rules_from_table(struct ofproto *ofproto, struct oftable *table, | |
3933 | unsigned int extra_space) | |
15aaf599 | 3934 | OVS_REQUIRES(ofproto_mutex) |
2e31a9b8 BP |
3935 | { |
3936 | while (should_evict_a_rule(table, extra_space)) { | |
3937 | struct rule *rule; | |
8037acb4 | 3938 | |
2e31a9b8 BP |
3939 | if (!choose_rule_to_evict(table, &rule)) { |
3940 | return OFPERR_OFPFMFC_TABLE_FULL; | |
3941 | } else if (rule->pending) { | |
2e31a9b8 BP |
3942 | return OFPROTO_POSTPONE; |
3943 | } else { | |
3944 | struct ofopgroup *group = ofopgroup_create_unattached(ofproto); | |
15aaf599 BP |
3945 | delete_flow__(rule, group, OFPRR_EVICTION); |
3946 | ofopgroup_submit(group); | |
2e31a9b8 | 3947 | } |
8037acb4 | 3948 | } |
2e31a9b8 BP |
3949 | |
3950 | return 0; | |
8037acb4 BP |
3951 | } |
3952 | ||
79eee1eb BP |
3953 | /* Implements OFPFC_ADD and the cases for OFPFC_MODIFY and OFPFC_MODIFY_STRICT |
3954 | * in which no matching flow already exists in the flow table. | |
3955 | * | |
3956 | * Adds the flow specified by 'ofm', which is followed by 'n_actions' | |
75a75043 | 3957 | * ofp_actions, to the ofproto's flow table. Returns 0 on success, an OpenFlow |
90bf1e07 BP |
3958 | * error code on failure, or OFPROTO_POSTPONE if the operation cannot be |
3959 | * initiated now but may be retried later. | |
79eee1eb | 3960 | * |
2509616e | 3961 | * The caller retains ownership of 'fm->ofpacts'. |
f25d0cf3 | 3962 | * |
79eee1eb BP |
3963 | * 'ofconn' is used to retrieve the packet buffer specified in ofm->buffer_id, |
3964 | * if any. */ | |
90bf1e07 | 3965 | static enum ofperr |
a9a2da38 | 3966 | add_flow(struct ofproto *ofproto, struct ofconn *ofconn, |
e3b56933 | 3967 | struct ofputil_flow_mod *fm, const struct ofp_header *request) |
15aaf599 | 3968 | OVS_REQUIRES(ofproto_mutex) |
064af421 | 3969 | { |
d0918789 | 3970 | struct oftable *table; |
8037acb4 | 3971 | struct cls_rule cr; |
064af421 | 3972 | struct rule *rule; |
5a361239 | 3973 | uint8_t table_id; |
554764d1 | 3974 | int error = 0; |
064af421 | 3975 | |
554764d1 SH |
3976 | if (!check_table_id(ofproto, fm->table_id)) { |
3977 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
48266274 BP |
3978 | return error; |
3979 | } | |
3980 | ||
7ee20df1 BP |
3981 | /* Pick table. */ |
3982 | if (fm->table_id == 0xff) { | |
13521ff5 | 3983 | if (ofproto->ofproto_class->rule_choose_table) { |
81a76618 BP |
3984 | error = ofproto->ofproto_class->rule_choose_table(ofproto, |
3985 | &fm->match, | |
7ee20df1 BP |
3986 | &table_id); |
3987 | if (error) { | |
3988 | return error; | |
3989 | } | |
cb22974d | 3990 | ovs_assert(table_id < ofproto->n_tables); |
7ee20df1 | 3991 | } else { |
5a361239 | 3992 | table_id = 0; |
7ee20df1 BP |
3993 | } |
3994 | } else if (fm->table_id < ofproto->n_tables) { | |
5a361239 | 3995 | table_id = fm->table_id; |
7ee20df1 | 3996 | } else { |
c22c56bd | 3997 | return OFPERR_OFPBRC_BAD_TABLE_ID; |
064af421 BP |
3998 | } |
3999 | ||
5a361239 JR |
4000 | table = &ofproto->tables[table_id]; |
4001 | ||
adcf00ba | 4002 | if (!oftable_is_modifiable(table, fm->flags)) { |
5c67e4af BP |
4003 | return OFPERR_OFPBRC_EPERM; |
4004 | } | |
4005 | ||
adcf00ba AZ |
4006 | if (!(fm->flags & OFPUTIL_FF_HIDDEN_FIELDS)) { |
4007 | if (!match_has_default_hidden_fields(&fm->match)) { | |
4008 | VLOG_WARN_RL(&rl, "%s: (add_flow) only internal flows can set " | |
4009 | "non-default values to hidden fields", ofproto->name); | |
4010 | return OFPERR_OFPBRC_EPERM; | |
4011 | } | |
4012 | } | |
4013 | ||
8037acb4 BP |
4014 | cls_rule_init(&cr, &fm->match, fm->priority); |
4015 | ||
b277c7cc | 4016 | /* Transform "add" into "modify" if there's an existing identical flow. */ |
06f81620 | 4017 | fat_rwlock_rdlock(&table->cls.rwlock); |
8037acb4 | 4018 | rule = rule_from_cls_rule(classifier_find_rule_exactly(&table->cls, &cr)); |
06f81620 | 4019 | fat_rwlock_unlock(&table->cls.rwlock); |
b277c7cc | 4020 | if (rule) { |
8037acb4 | 4021 | cls_rule_destroy(&cr); |
adcf00ba | 4022 | if (!rule_is_modifiable(rule, fm->flags)) { |
b277c7cc BP |
4023 | return OFPERR_OFPBRC_EPERM; |
4024 | } else if (rule->pending) { | |
4025 | return OFPROTO_POSTPONE; | |
4026 | } else { | |
a8e547c1 | 4027 | struct rule_collection rules; |
b277c7cc | 4028 | |
a8e547c1 BP |
4029 | rule_collection_init(&rules); |
4030 | rule_collection_add(&rules, rule); | |
b277c7cc | 4031 | fm->modify_cookie = true; |
a8e547c1 BP |
4032 | error = modify_flows__(ofproto, ofconn, fm, request, &rules); |
4033 | rule_collection_destroy(&rules); | |
4034 | ||
4035 | return error; | |
b277c7cc BP |
4036 | } |
4037 | } | |
4038 | ||
7ee20df1 | 4039 | /* Serialize against pending deletion. */ |
8037acb4 BP |
4040 | if (is_flow_deletion_pending(ofproto, &cr, table_id)) { |
4041 | cls_rule_destroy(&cr); | |
7ee20df1 | 4042 | return OFPROTO_POSTPONE; |
afe75089 | 4043 | } |
064af421 | 4044 | |
81a76618 | 4045 | /* Check for overlap, if requested. */ |
0fb88c18 | 4046 | if (fm->flags & OFPUTIL_FF_CHECK_OVERLAP) { |
c09f755d BP |
4047 | bool overlaps; |
4048 | ||
06f81620 | 4049 | fat_rwlock_rdlock(&table->cls.rwlock); |
8037acb4 | 4050 | overlaps = classifier_rule_overlaps(&table->cls, &cr); |
06f81620 | 4051 | fat_rwlock_unlock(&table->cls.rwlock); |
c09f755d BP |
4052 | |
4053 | if (overlaps) { | |
8037acb4 | 4054 | cls_rule_destroy(&cr); |
c09f755d BP |
4055 | return OFPERR_OFPFMFC_OVERLAP; |
4056 | } | |
7ee20df1 | 4057 | } |
81a76618 | 4058 | |
8037acb4 | 4059 | /* If necessary, evict an existing rule to clear out space. */ |
2e31a9b8 | 4060 | error = evict_rules_from_table(ofproto, table, 1); |
8037acb4 BP |
4061 | if (error) { |
4062 | cls_rule_destroy(&cr); | |
4063 | return error; | |
4064 | } | |
2e1ae200 | 4065 | |
8037acb4 BP |
4066 | /* Allocate new rule. */ |
4067 | rule = ofproto->ofproto_class->rule_alloc(); | |
4068 | if (!rule) { | |
4069 | cls_rule_destroy(&cr); | |
4070 | VLOG_WARN_RL(&rl, "%s: failed to create rule (%s)", | |
4071 | ofproto->name, ovs_strerror(error)); | |
4072 | return ENOMEM; | |
4073 | } | |
4074 | ||
4075 | /* Initialize base state. */ | |
49a0e0eb BP |
4076 | *CONST_CAST(struct ofproto **, &rule->ofproto) = ofproto; |
4077 | cls_rule_move(CONST_CAST(struct cls_rule *, &rule->cr), &cr); | |
37bec3d3 | 4078 | ovs_refcount_init(&rule->ref_count); |
7ee20df1 | 4079 | rule->pending = NULL; |
623e1caf | 4080 | rule->flow_cookie = fm->new_cookie; |
dc437090 | 4081 | rule->created = rule->modified = time_msec(); |
a3779dbc | 4082 | |
d10976b7 BP |
4083 | ovs_mutex_init(&rule->mutex); |
4084 | ovs_mutex_lock(&rule->mutex); | |
7ee20df1 BP |
4085 | rule->idle_timeout = fm->idle_timeout; |
4086 | rule->hard_timeout = fm->hard_timeout; | |
d10976b7 | 4087 | ovs_mutex_unlock(&rule->mutex); |
a3779dbc | 4088 | |
49a0e0eb | 4089 | *CONST_CAST(uint8_t *, &rule->table_id) = table - ofproto->tables; |
3f517bcd | 4090 | rule->flags = fm->flags & OFPUTIL_FF_STATE; |
06a0f3e2 BP |
4091 | ovsrcu_set(&rule->actions, |
4092 | rule_actions_create(ofproto, fm->ofpacts, fm->ofpacts_len)); | |
9cae45dc | 4093 | list_init(&rule->meter_list_node); |
254750ce | 4094 | rule->eviction_group = NULL; |
e503cc19 | 4095 | list_init(&rule->expirable); |
2b07c8b1 BP |
4096 | rule->monitor_flags = 0; |
4097 | rule->add_seqno = 0; | |
4098 | rule->modify_seqno = 0; | |
7ee20df1 | 4099 | |
8037acb4 | 4100 | /* Construct rule, initializing derived state. */ |
b277c7cc BP |
4101 | error = ofproto->ofproto_class->rule_construct(rule); |
4102 | if (error) { | |
8037acb4 BP |
4103 | ofproto_rule_destroy__(rule); |
4104 | return error; | |
064af421 | 4105 | } |
8037acb4 BP |
4106 | |
4107 | /* Insert rule. */ | |
1ebeaaa7 JS |
4108 | do_add_flow(ofproto, ofconn, request, fm->buffer_id, rule); |
4109 | ||
4110 | return error; | |
4111 | } | |
4112 | ||
4113 | static void | |
4114 | do_add_flow(struct ofproto *ofproto, struct ofconn *ofconn, | |
4115 | const struct ofp_header *request, uint32_t buffer_id, | |
4116 | struct rule *rule) | |
4117 | OVS_REQUIRES(ofproto_mutex) | |
4118 | { | |
4119 | struct ofopgroup *group; | |
4120 | ||
8037acb4 BP |
4121 | oftable_insert_rule(rule); |
4122 | ||
1ebeaaa7 | 4123 | group = ofopgroup_create(ofproto, ofconn, request, buffer_id); |
8037acb4 BP |
4124 | ofoperation_create(group, rule, OFOPERATION_ADD, 0); |
4125 | ofproto->ofproto_class->rule_insert(rule); | |
b277c7cc | 4126 | ofopgroup_submit(group); |
064af421 | 4127 | } |
79eee1eb BP |
4128 | \f |
4129 | /* OFPFC_MODIFY and OFPFC_MODIFY_STRICT. */ | |
064af421 | 4130 | |
9ed18e46 BP |
4131 | /* Modifies the rules listed in 'rules', changing their actions to match those |
4132 | * in 'fm'. | |
79eee1eb | 4133 | * |
9ed18e46 BP |
4134 | * 'ofconn' is used to retrieve the packet buffer specified in fm->buffer_id, |
4135 | * if any. | |
4136 | * | |
4137 | * Returns 0 on success, otherwise an OpenFlow error code. */ | |
90bf1e07 | 4138 | static enum ofperr |
7024dffe | 4139 | modify_flows__(struct ofproto *ofproto, struct ofconn *ofconn, |
e3b56933 | 4140 | struct ofputil_flow_mod *fm, const struct ofp_header *request, |
a8e547c1 | 4141 | const struct rule_collection *rules) |
15aaf599 | 4142 | OVS_REQUIRES(ofproto_mutex) |
79eee1eb | 4143 | { |
b277c7cc | 4144 | enum ofoperation_type type; |
7ee20df1 | 4145 | struct ofopgroup *group; |
5c67e4af | 4146 | enum ofperr error; |
a8e547c1 | 4147 | size_t i; |
79eee1eb | 4148 | |
b277c7cc | 4149 | type = fm->command == OFPFC_ADD ? OFOPERATION_REPLACE : OFOPERATION_MODIFY; |
7024dffe | 4150 | group = ofopgroup_create(ofproto, ofconn, request, fm->buffer_id); |
5c67e4af | 4151 | error = OFPERR_OFPBRC_EPERM; |
a8e547c1 BP |
4152 | for (i = 0; i < rules->n; i++) { |
4153 | struct rule *rule = rules->rules[i]; | |
06a0f3e2 | 4154 | const struct rule_actions *actions; |
08043761 BP |
4155 | struct ofoperation *op; |
4156 | bool actions_changed; | |
b277c7cc | 4157 | bool reset_counters; |
08043761 | 4158 | |
0fb88c18 | 4159 | /* FIXME: Implement OFPFUTIL_FF_RESET_COUNTS */ |
2e1ae200 | 4160 | |
adcf00ba | 4161 | if (rule_is_modifiable(rule, fm->flags)) { |
5c67e4af BP |
4162 | /* At least one rule is modifiable, don't report EPERM error. */ |
4163 | error = 0; | |
4164 | } else { | |
4165 | continue; | |
4166 | } | |
4167 | ||
06a0f3e2 | 4168 | actions = rule_get_actions(rule); |
08043761 | 4169 | actions_changed = !ofpacts_equal(fm->ofpacts, fm->ofpacts_len, |
06a0f3e2 BP |
4170 | actions->ofpacts, |
4171 | actions->ofpacts_len); | |
a7d94793 | 4172 | |
b277c7cc | 4173 | op = ofoperation_create(group, rule, type, 0); |
98eaac36 | 4174 | |
b8266395 | 4175 | if (fm->modify_cookie && fm->new_cookie != OVS_BE64_MAX) { |
98eaac36 JR |
4176 | ofproto_rule_change_cookie(ofproto, rule, fm->new_cookie); |
4177 | } | |
b277c7cc | 4178 | if (type == OFOPERATION_REPLACE) { |
d10976b7 | 4179 | ovs_mutex_lock(&rule->mutex); |
b277c7cc BP |
4180 | rule->idle_timeout = fm->idle_timeout; |
4181 | rule->hard_timeout = fm->hard_timeout; | |
d10976b7 | 4182 | ovs_mutex_unlock(&rule->mutex); |
b277c7cc | 4183 | |
3f517bcd | 4184 | rule->flags = fm->flags & OFPUTIL_FF_STATE; |
b277c7cc BP |
4185 | if (fm->idle_timeout || fm->hard_timeout) { |
4186 | if (!rule->eviction_group) { | |
4187 | eviction_group_add_rule(rule); | |
4188 | } | |
4189 | } else { | |
4190 | eviction_group_remove_rule(rule); | |
4191 | } | |
4192 | } | |
4193 | ||
4194 | reset_counters = (fm->flags & OFPUTIL_FF_RESET_COUNTS) != 0; | |
4195 | if (actions_changed || reset_counters) { | |
dc723c44 | 4196 | const struct rule_actions *new_actions; |
6f00e29b | 4197 | |
06a0f3e2 | 4198 | op->actions = rule_get_actions(rule); |
65efd2ab JR |
4199 | new_actions = rule_actions_create(ofproto, |
4200 | fm->ofpacts, fm->ofpacts_len); | |
884e1dc4 | 4201 | |
06a0f3e2 | 4202 | ovsrcu_set(&rule->actions, new_actions); |
884e1dc4 | 4203 | |
b277c7cc BP |
4204 | rule->ofproto->ofproto_class->rule_modify_actions(rule, |
4205 | reset_counters); | |
308881af | 4206 | } else { |
08043761 | 4207 | ofoperation_complete(op, 0); |
623e1caf | 4208 | } |
5ecc9d81 | 4209 | } |
7ee20df1 | 4210 | ofopgroup_submit(group); |
79eee1eb | 4211 | |
5c67e4af | 4212 | return error; |
9ed18e46 BP |
4213 | } |
4214 | ||
9387b970 SH |
4215 | static enum ofperr |
4216 | modify_flows_add(struct ofproto *ofproto, struct ofconn *ofconn, | |
e3b56933 | 4217 | struct ofputil_flow_mod *fm, const struct ofp_header *request) |
15aaf599 | 4218 | OVS_REQUIRES(ofproto_mutex) |
9387b970 | 4219 | { |
b8266395 | 4220 | if (fm->cookie_mask != htonll(0) || fm->new_cookie == OVS_BE64_MAX) { |
9387b970 SH |
4221 | return 0; |
4222 | } | |
4223 | return add_flow(ofproto, ofconn, fm, request); | |
4224 | } | |
4225 | ||
90bf1e07 BP |
4226 | /* Implements OFPFC_MODIFY. Returns 0 on success or an OpenFlow error code on |
4227 | * failure. | |
9ed18e46 BP |
4228 | * |
4229 | * 'ofconn' is used to retrieve the packet buffer specified in fm->buffer_id, | |
4230 | * if any. */ | |
90bf1e07 | 4231 | static enum ofperr |
7024dffe | 4232 | modify_flows_loose(struct ofproto *ofproto, struct ofconn *ofconn, |
e3b56933 | 4233 | struct ofputil_flow_mod *fm, |
7ee20df1 | 4234 | const struct ofp_header *request) |
15aaf599 | 4235 | OVS_REQUIRES(ofproto_mutex) |
9ed18e46 | 4236 | { |
a9b22b7f | 4237 | struct rule_criteria criteria; |
a8e547c1 | 4238 | struct rule_collection rules; |
9ed18e46 BP |
4239 | int error; |
4240 | ||
a9b22b7f BP |
4241 | rule_criteria_init(&criteria, fm->table_id, &fm->match, 0, |
4242 | fm->cookie, fm->cookie_mask, OFPP_ANY, OFPG11_ANY); | |
4243 | error = collect_rules_loose(ofproto, &criteria, &rules); | |
4244 | rule_criteria_destroy(&criteria); | |
4245 | ||
a8e547c1 BP |
4246 | if (!error) { |
4247 | error = (rules.n > 0 | |
4248 | ? modify_flows__(ofproto, ofconn, fm, request, &rules) | |
4249 | : modify_flows_add(ofproto, ofconn, fm, request)); | |
623e1caf | 4250 | } |
a8e547c1 BP |
4251 | |
4252 | rule_collection_destroy(&rules); | |
4253 | ||
4254 | return error; | |
79eee1eb BP |
4255 | } |
4256 | ||
4257 | /* Implements OFPFC_MODIFY_STRICT. Returns 0 on success or an OpenFlow error | |
90bf1e07 | 4258 | * code on failure. |
79eee1eb | 4259 | * |
9ed18e46 | 4260 | * 'ofconn' is used to retrieve the packet buffer specified in fm->buffer_id, |
79eee1eb | 4261 | * if any. */ |
90bf1e07 | 4262 | static enum ofperr |
7024dffe | 4263 | modify_flow_strict(struct ofproto *ofproto, struct ofconn *ofconn, |
e3b56933 | 4264 | struct ofputil_flow_mod *fm, |
7ee20df1 | 4265 | const struct ofp_header *request) |
15aaf599 | 4266 | OVS_REQUIRES(ofproto_mutex) |
79eee1eb | 4267 | { |
a9b22b7f | 4268 | struct rule_criteria criteria; |
a8e547c1 | 4269 | struct rule_collection rules; |
6c1491fb BP |
4270 | int error; |
4271 | ||
a9b22b7f BP |
4272 | rule_criteria_init(&criteria, fm->table_id, &fm->match, fm->priority, |
4273 | fm->cookie, fm->cookie_mask, OFPP_ANY, OFPG11_ANY); | |
4274 | error = collect_rules_strict(ofproto, &criteria, &rules); | |
4275 | rule_criteria_destroy(&criteria); | |
4276 | ||
a8e547c1 BP |
4277 | if (!error) { |
4278 | if (rules.n == 0) { | |
4279 | error = modify_flows_add(ofproto, ofconn, fm, request); | |
4280 | } else if (rules.n == 1) { | |
4281 | error = modify_flows__(ofproto, ofconn, fm, request, &rules); | |
4282 | } | |
623e1caf | 4283 | } |
a8e547c1 BP |
4284 | |
4285 | rule_collection_destroy(&rules); | |
4286 | ||
4287 | return error; | |
79eee1eb | 4288 | } |
9ed18e46 BP |
4289 | \f |
4290 | /* OFPFC_DELETE implementation. */ | |
79eee1eb | 4291 | |
254750ce | 4292 | static void |
ca311b2f JR |
4293 | delete_flow__(struct rule *rule, struct ofopgroup *group, |
4294 | enum ofp_flow_removed_reason reason) | |
15aaf599 | 4295 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
4296 | { |
4297 | struct ofproto *ofproto = rule->ofproto; | |
4298 | ||
ca311b2f | 4299 | ofproto_rule_send_removed(rule, reason); |
254750ce | 4300 | |
ca311b2f | 4301 | ofoperation_create(group, rule, OFOPERATION_DELETE, reason); |
254750ce | 4302 | oftable_remove_rule(rule); |
8037acb4 | 4303 | ofproto->ofproto_class->rule_delete(rule); |
254750ce BP |
4304 | } |
4305 | ||
9ed18e46 BP |
4306 | /* Deletes the rules listed in 'rules'. |
4307 | * | |
4308 | * Returns 0 on success, otherwise an OpenFlow error code. */ | |
90bf1e07 | 4309 | static enum ofperr |
7024dffe | 4310 | delete_flows__(struct ofproto *ofproto, struct ofconn *ofconn, |
a8e547c1 BP |
4311 | const struct ofp_header *request, |
4312 | const struct rule_collection *rules, | |
ca311b2f | 4313 | enum ofp_flow_removed_reason reason) |
15aaf599 | 4314 | OVS_REQUIRES(ofproto_mutex) |
064af421 | 4315 | { |
7ee20df1 | 4316 | struct ofopgroup *group; |
a8e547c1 | 4317 | size_t i; |
79eee1eb | 4318 | |
7024dffe | 4319 | group = ofopgroup_create(ofproto, ofconn, request, UINT32_MAX); |
a8e547c1 | 4320 | for (i = 0; i < rules->n; i++) { |
15aaf599 | 4321 | delete_flow__(rules->rules[i], group, reason); |
79eee1eb | 4322 | } |
7ee20df1 | 4323 | ofopgroup_submit(group); |
79eee1eb | 4324 | |
9ed18e46 | 4325 | return 0; |
79eee1eb | 4326 | } |
79eee1eb BP |
4327 | |
4328 | /* Implements OFPFC_DELETE. */ | |
90bf1e07 | 4329 | static enum ofperr |
7024dffe BP |
4330 | delete_flows_loose(struct ofproto *ofproto, struct ofconn *ofconn, |
4331 | const struct ofputil_flow_mod *fm, | |
7ee20df1 | 4332 | const struct ofp_header *request) |
15aaf599 | 4333 | OVS_REQUIRES(ofproto_mutex) |
79eee1eb | 4334 | { |
a9b22b7f | 4335 | struct rule_criteria criteria; |
a8e547c1 | 4336 | struct rule_collection rules; |
90bf1e07 | 4337 | enum ofperr error; |
064af421 | 4338 | |
a9b22b7f BP |
4339 | rule_criteria_init(&criteria, fm->table_id, &fm->match, 0, |
4340 | fm->cookie, fm->cookie_mask, | |
4341 | fm->out_port, fm->out_group); | |
4342 | error = collect_rules_loose(ofproto, &criteria, &rules); | |
4343 | rule_criteria_destroy(&criteria); | |
4344 | ||
a8e547c1 BP |
4345 | if (!error && rules.n > 0) { |
4346 | error = delete_flows__(ofproto, ofconn, request, &rules, OFPRR_DELETE); | |
4347 | } | |
4348 | rule_collection_destroy(&rules); | |
4349 | ||
4350 | return error; | |
064af421 BP |
4351 | } |
4352 | ||
79eee1eb | 4353 | /* Implements OFPFC_DELETE_STRICT. */ |
90bf1e07 | 4354 | static enum ofperr |
7024dffe | 4355 | delete_flow_strict(struct ofproto *ofproto, struct ofconn *ofconn, |
1b9d6420 | 4356 | const struct ofputil_flow_mod *fm, |
7ee20df1 | 4357 | const struct ofp_header *request) |
15aaf599 | 4358 | OVS_REQUIRES(ofproto_mutex) |
79eee1eb | 4359 | { |
a9b22b7f | 4360 | struct rule_criteria criteria; |
a8e547c1 | 4361 | struct rule_collection rules; |
90bf1e07 | 4362 | enum ofperr error; |
79eee1eb | 4363 | |
a9b22b7f BP |
4364 | rule_criteria_init(&criteria, fm->table_id, &fm->match, fm->priority, |
4365 | fm->cookie, fm->cookie_mask, | |
4366 | fm->out_port, fm->out_group); | |
4367 | error = collect_rules_strict(ofproto, &criteria, &rules); | |
4368 | rule_criteria_destroy(&criteria); | |
4369 | ||
a8e547c1 BP |
4370 | if (!error && rules.n > 0) { |
4371 | error = delete_flows__(ofproto, ofconn, request, &rules, OFPRR_DELETE); | |
4372 | } | |
4373 | rule_collection_destroy(&rules); | |
4374 | ||
4375 | return error; | |
abe529af BP |
4376 | } |
4377 | ||
4378 | static void | |
4379 | ofproto_rule_send_removed(struct rule *rule, uint8_t reason) | |
15aaf599 | 4380 | OVS_REQUIRES(ofproto_mutex) |
abe529af BP |
4381 | { |
4382 | struct ofputil_flow_removed fr; | |
dc437090 | 4383 | long long int used; |
abe529af | 4384 | |
3f517bcd DB |
4385 | if (ofproto_rule_is_hidden(rule) || |
4386 | !(rule->flags & OFPUTIL_FF_SEND_FLOW_REM)) { | |
abe529af BP |
4387 | return; |
4388 | } | |
4389 | ||
5cb7a798 | 4390 | minimatch_expand(&rule->cr.match, &fr.match); |
81a76618 | 4391 | fr.priority = rule->cr.priority; |
abe529af BP |
4392 | fr.cookie = rule->flow_cookie; |
4393 | fr.reason = reason; | |
95216219 | 4394 | fr.table_id = rule->table_id; |
65e0be10 BP |
4395 | calc_duration(rule->created, time_msec(), |
4396 | &fr.duration_sec, &fr.duration_nsec); | |
d10976b7 | 4397 | ovs_mutex_lock(&rule->mutex); |
abe529af | 4398 | fr.idle_timeout = rule->idle_timeout; |
fa2bad0f | 4399 | fr.hard_timeout = rule->hard_timeout; |
d10976b7 | 4400 | ovs_mutex_unlock(&rule->mutex); |
abe529af | 4401 | rule->ofproto->ofproto_class->rule_get_stats(rule, &fr.packet_count, |
dc437090 | 4402 | &fr.byte_count, &used); |
abe529af BP |
4403 | |
4404 | connmgr_send_flow_removed(rule->ofproto->connmgr, &fr); | |
4405 | } | |
4406 | ||
4407 | /* Sends an OpenFlow "flow removed" message with the given 'reason' (either | |
4408 | * OFPRR_HARD_TIMEOUT or OFPRR_IDLE_TIMEOUT), and then removes 'rule' from its | |
4409 | * ofproto. | |
4410 | * | |
e2a3d183 BP |
4411 | * 'rule' must not have a pending operation (that is, 'rule->pending' must be |
4412 | * NULL). | |
4413 | * | |
abe529af BP |
4414 | * ofproto implementation ->run() functions should use this function to expire |
4415 | * OpenFlow flows. */ | |
4416 | void | |
4417 | ofproto_rule_expire(struct rule *rule, uint8_t reason) | |
15aaf599 | 4418 | OVS_REQUIRES(ofproto_mutex) |
abe529af | 4419 | { |
7ee20df1 | 4420 | struct ofproto *ofproto = rule->ofproto; |
7ee20df1 | 4421 | |
7395c052 NZ |
4422 | ovs_assert(reason == OFPRR_HARD_TIMEOUT || reason == OFPRR_IDLE_TIMEOUT |
4423 | || reason == OFPRR_DELETE || reason == OFPRR_GROUP_DELETE); | |
7ee20df1 | 4424 | |
ad9ca2fc | 4425 | ofproto_rule_delete__(ofproto, rule, reason); |
79eee1eb | 4426 | } |
994c9973 BP |
4427 | |
4428 | /* Reduces '*timeout' to no more than 'max'. A value of zero in either case | |
4429 | * means "infinite". */ | |
4430 | static void | |
4431 | reduce_timeout(uint16_t max, uint16_t *timeout) | |
4432 | { | |
4433 | if (max && (!*timeout || *timeout > max)) { | |
4434 | *timeout = max; | |
4435 | } | |
4436 | } | |
4437 | ||
4438 | /* If 'idle_timeout' is nonzero, and 'rule' has no idle timeout or an idle | |
4439 | * timeout greater than 'idle_timeout', lowers 'rule''s idle timeout to | |
4440 | * 'idle_timeout' seconds. Similarly for 'hard_timeout'. | |
4441 | * | |
4442 | * Suitable for implementing OFPACT_FIN_TIMEOUT. */ | |
4443 | void | |
4444 | ofproto_rule_reduce_timeouts(struct rule *rule, | |
4445 | uint16_t idle_timeout, uint16_t hard_timeout) | |
d10976b7 | 4446 | OVS_EXCLUDED(ofproto_mutex, rule->mutex) |
994c9973 BP |
4447 | { |
4448 | if (!idle_timeout && !hard_timeout) { | |
4449 | return; | |
4450 | } | |
4451 | ||
abe7b10f | 4452 | ovs_mutex_lock(&ofproto_mutex); |
994c9973 BP |
4453 | if (list_is_empty(&rule->expirable)) { |
4454 | list_insert(&rule->ofproto->expirable, &rule->expirable); | |
4455 | } | |
abe7b10f | 4456 | ovs_mutex_unlock(&ofproto_mutex); |
994c9973 | 4457 | |
d10976b7 | 4458 | ovs_mutex_lock(&rule->mutex); |
994c9973 BP |
4459 | reduce_timeout(idle_timeout, &rule->idle_timeout); |
4460 | reduce_timeout(hard_timeout, &rule->hard_timeout); | |
d10976b7 | 4461 | ovs_mutex_unlock(&rule->mutex); |
994c9973 | 4462 | } |
79eee1eb | 4463 | \f |
90bf1e07 | 4464 | static enum ofperr |
2e4f5fcf | 4465 | handle_flow_mod(struct ofconn *ofconn, const struct ofp_header *oh) |
15aaf599 | 4466 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 4467 | { |
a5b8d268 | 4468 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
a9a2da38 | 4469 | struct ofputil_flow_mod fm; |
f25d0cf3 BP |
4470 | uint64_t ofpacts_stub[1024 / 8]; |
4471 | struct ofpbuf ofpacts; | |
90bf1e07 | 4472 | enum ofperr error; |
064af421 | 4473 | |
76589937 | 4474 | error = reject_slave_controller(ofconn); |
9deba63b | 4475 | if (error) { |
f25d0cf3 | 4476 | goto exit; |
9deba63b | 4477 | } |
3052b0c5 | 4478 | |
f25d0cf3 BP |
4479 | ofpbuf_use_stub(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); |
4480 | error = ofputil_decode_flow_mod(&fm, oh, ofconn_get_protocol(ofconn), | |
7e9f8266 BP |
4481 | &ofpacts, |
4482 | u16_to_ofp(ofproto->max_ports), | |
4483 | ofproto->n_tables); | |
4484 | if (!error) { | |
4485 | error = ofproto_check_ofpacts(ofproto, fm.ofpacts, fm.ofpacts_len); | |
4486 | } | |
548de4dd | 4487 | if (!error) { |
f1822532 | 4488 | error = handle_flow_mod__(ofproto, ofconn, &fm, oh); |
49bdc010 | 4489 | } |
a5b8d268 | 4490 | if (error) { |
f25d0cf3 | 4491 | goto exit_free_ofpacts; |
a5b8d268 | 4492 | } |
2e310801 | 4493 | |
696d1bcf | 4494 | ofconn_report_flow_mod(ofconn, fm.command); |
a5b8d268 | 4495 | |
f25d0cf3 BP |
4496 | exit_free_ofpacts: |
4497 | ofpbuf_uninit(&ofpacts); | |
4498 | exit: | |
4499 | return error; | |
75a75043 BP |
4500 | } |
4501 | ||
90bf1e07 | 4502 | static enum ofperr |
75a75043 | 4503 | handle_flow_mod__(struct ofproto *ofproto, struct ofconn *ofconn, |
e3b56933 | 4504 | struct ofputil_flow_mod *fm, const struct ofp_header *oh) |
15aaf599 | 4505 | OVS_EXCLUDED(ofproto_mutex) |
75a75043 | 4506 | { |
35412852 | 4507 | enum ofperr error; |
75a75043 | 4508 | |
15aaf599 | 4509 | ovs_mutex_lock(&ofproto_mutex); |
35412852 BP |
4510 | if (ofproto->n_pending < 50) { |
4511 | switch (fm->command) { | |
4512 | case OFPFC_ADD: | |
4513 | error = add_flow(ofproto, ofconn, fm, oh); | |
4514 | break; | |
3052b0c5 | 4515 | |
35412852 BP |
4516 | case OFPFC_MODIFY: |
4517 | error = modify_flows_loose(ofproto, ofconn, fm, oh); | |
4518 | break; | |
3052b0c5 | 4519 | |
35412852 BP |
4520 | case OFPFC_MODIFY_STRICT: |
4521 | error = modify_flow_strict(ofproto, ofconn, fm, oh); | |
4522 | break; | |
3052b0c5 | 4523 | |
35412852 BP |
4524 | case OFPFC_DELETE: |
4525 | error = delete_flows_loose(ofproto, ofconn, fm, oh); | |
4526 | break; | |
3052b0c5 | 4527 | |
35412852 BP |
4528 | case OFPFC_DELETE_STRICT: |
4529 | error = delete_flow_strict(ofproto, ofconn, fm, oh); | |
4530 | break; | |
3052b0c5 | 4531 | |
35412852 BP |
4532 | default: |
4533 | if (fm->command > 0xff) { | |
4534 | VLOG_WARN_RL(&rl, "%s: flow_mod has explicit table_id but " | |
4535 | "flow_mod_table_id extension is not enabled", | |
4536 | ofproto->name); | |
4537 | } | |
4538 | error = OFPERR_OFPFMFC_BAD_COMMAND; | |
4539 | break; | |
6c1491fb | 4540 | } |
35412852 BP |
4541 | } else { |
4542 | ovs_assert(!list_is_empty(&ofproto->pending)); | |
4543 | error = OFPROTO_POSTPONE; | |
3052b0c5 | 4544 | } |
15aaf599 | 4545 | ovs_mutex_unlock(&ofproto_mutex); |
35412852 BP |
4546 | |
4547 | run_rule_executes(ofproto); | |
4548 | return error; | |
3052b0c5 BP |
4549 | } |
4550 | ||
90bf1e07 | 4551 | static enum ofperr |
d1e2cf21 | 4552 | handle_role_request(struct ofconn *ofconn, const struct ofp_header *oh) |
9deba63b | 4553 | { |
f4f1ea7e BP |
4554 | struct ofputil_role_request request; |
4555 | struct ofputil_role_request reply; | |
9deba63b | 4556 | struct ofpbuf *buf; |
6ea4776b JR |
4557 | enum ofperr error; |
4558 | ||
f4f1ea7e | 4559 | error = ofputil_decode_role_message(oh, &request); |
6ea4776b JR |
4560 | if (error) { |
4561 | return error; | |
4562 | } | |
9deba63b | 4563 | |
f4f1ea7e BP |
4564 | if (request.role != OFPCR12_ROLE_NOCHANGE) { |
4565 | if (ofconn_get_role(ofconn) != request.role | |
4566 | && ofconn_has_pending_opgroups(ofconn)) { | |
4567 | return OFPROTO_POSTPONE; | |
4568 | } | |
7ee20df1 | 4569 | |
f4f1ea7e BP |
4570 | if (request.have_generation_id |
4571 | && !ofconn_set_master_election_id(ofconn, request.generation_id)) { | |
4572 | return OFPERR_OFPRRFC_STALE; | |
6ea4776b | 4573 | } |
6ea4776b | 4574 | |
f4f1ea7e BP |
4575 | ofconn_set_role(ofconn, request.role); |
4576 | } | |
9deba63b | 4577 | |
f4f1ea7e | 4578 | reply.role = ofconn_get_role(ofconn); |
147cc9d3 BP |
4579 | reply.have_generation_id = ofconn_get_master_election_id( |
4580 | ofconn, &reply.generation_id); | |
f4f1ea7e | 4581 | buf = ofputil_encode_role_reply(oh, &reply); |
b0421aa2 | 4582 | ofconn_send_reply(ofconn, buf); |
9deba63b BP |
4583 | |
4584 | return 0; | |
4585 | } | |
4586 | ||
90bf1e07 | 4587 | static enum ofperr |
6c1491fb BP |
4588 | handle_nxt_flow_mod_table_id(struct ofconn *ofconn, |
4589 | const struct ofp_header *oh) | |
4590 | { | |
982697a4 | 4591 | const struct nx_flow_mod_table_id *msg = ofpmsg_body(oh); |
27527aa0 BP |
4592 | enum ofputil_protocol cur, next; |
4593 | ||
4594 | cur = ofconn_get_protocol(ofconn); | |
4595 | next = ofputil_protocol_set_tid(cur, msg->set != 0); | |
4596 | ofconn_set_protocol(ofconn, next); | |
6c1491fb | 4597 | |
6c1491fb BP |
4598 | return 0; |
4599 | } | |
4600 | ||
90bf1e07 | 4601 | static enum ofperr |
d1e2cf21 | 4602 | handle_nxt_set_flow_format(struct ofconn *ofconn, const struct ofp_header *oh) |
09246b99 | 4603 | { |
982697a4 | 4604 | const struct nx_set_flow_format *msg = ofpmsg_body(oh); |
27527aa0 BP |
4605 | enum ofputil_protocol cur, next; |
4606 | enum ofputil_protocol next_base; | |
09246b99 | 4607 | |
27527aa0 BP |
4608 | next_base = ofputil_nx_flow_format_to_protocol(ntohl(msg->format)); |
4609 | if (!next_base) { | |
90bf1e07 | 4610 | return OFPERR_OFPBRC_EPERM; |
09246b99 | 4611 | } |
7ee20df1 | 4612 | |
27527aa0 BP |
4613 | cur = ofconn_get_protocol(ofconn); |
4614 | next = ofputil_protocol_set_base(cur, next_base); | |
4615 | if (cur != next && ofconn_has_pending_opgroups(ofconn)) { | |
4616 | /* Avoid sending async messages in surprising protocol. */ | |
7ee20df1 BP |
4617 | return OFPROTO_POSTPONE; |
4618 | } | |
4619 | ||
27527aa0 | 4620 | ofconn_set_protocol(ofconn, next); |
7ee20df1 | 4621 | return 0; |
09246b99 BP |
4622 | } |
4623 | ||
90bf1e07 | 4624 | static enum ofperr |
54834960 EJ |
4625 | handle_nxt_set_packet_in_format(struct ofconn *ofconn, |
4626 | const struct ofp_header *oh) | |
4627 | { | |
982697a4 | 4628 | const struct nx_set_packet_in_format *msg = ofpmsg_body(oh); |
54834960 EJ |
4629 | uint32_t format; |
4630 | ||
54834960 | 4631 | format = ntohl(msg->format); |
a15f0eeb | 4632 | if (format != NXPIF_OPENFLOW10 && format != NXPIF_NXM) { |
90bf1e07 | 4633 | return OFPERR_OFPBRC_EPERM; |
54834960 EJ |
4634 | } |
4635 | ||
4636 | if (format != ofconn_get_packet_in_format(ofconn) | |
4637 | && ofconn_has_pending_opgroups(ofconn)) { | |
4638 | /* Avoid sending async message in surprsing packet in format. */ | |
4639 | return OFPROTO_POSTPONE; | |
4640 | } | |
4641 | ||
4642 | ofconn_set_packet_in_format(ofconn, format); | |
4643 | return 0; | |
4644 | } | |
4645 | ||
80d5aefd BP |
4646 | static enum ofperr |
4647 | handle_nxt_set_async_config(struct ofconn *ofconn, const struct ofp_header *oh) | |
4648 | { | |
982697a4 | 4649 | const struct nx_async_config *msg = ofpmsg_body(oh); |
80d5aefd BP |
4650 | uint32_t master[OAM_N_TYPES]; |
4651 | uint32_t slave[OAM_N_TYPES]; | |
4652 | ||
4653 | master[OAM_PACKET_IN] = ntohl(msg->packet_in_mask[0]); | |
4654 | master[OAM_PORT_STATUS] = ntohl(msg->port_status_mask[0]); | |
4655 | master[OAM_FLOW_REMOVED] = ntohl(msg->flow_removed_mask[0]); | |
4656 | ||
4657 | slave[OAM_PACKET_IN] = ntohl(msg->packet_in_mask[1]); | |
4658 | slave[OAM_PORT_STATUS] = ntohl(msg->port_status_mask[1]); | |
4659 | slave[OAM_FLOW_REMOVED] = ntohl(msg->flow_removed_mask[1]); | |
4660 | ||
4661 | ofconn_set_async_config(ofconn, master, slave); | |
4550b647 MM |
4662 | if (ofconn_get_type(ofconn) == OFCONN_SERVICE && |
4663 | !ofconn_get_miss_send_len(ofconn)) { | |
4664 | ofconn_set_miss_send_len(ofconn, OFP_DEFAULT_MISS_SEND_LEN); | |
4665 | } | |
80d5aefd BP |
4666 | |
4667 | return 0; | |
4668 | } | |
4669 | ||
c423b3b3 AC |
4670 | static enum ofperr |
4671 | handle_nxt_get_async_request(struct ofconn *ofconn, const struct ofp_header *oh) | |
4672 | { | |
4673 | struct ofpbuf *buf; | |
4674 | uint32_t master[OAM_N_TYPES]; | |
4675 | uint32_t slave[OAM_N_TYPES]; | |
4676 | struct nx_async_config *msg; | |
4677 | ||
4678 | ofconn_get_async_config(ofconn, master, slave); | |
4679 | buf = ofpraw_alloc_reply(OFPRAW_OFPT13_GET_ASYNC_REPLY, oh, 0); | |
4680 | msg = ofpbuf_put_zeros(buf, sizeof *msg); | |
4681 | ||
4682 | msg->packet_in_mask[0] = htonl(master[OAM_PACKET_IN]); | |
4683 | msg->port_status_mask[0] = htonl(master[OAM_PORT_STATUS]); | |
4684 | msg->flow_removed_mask[0] = htonl(master[OAM_FLOW_REMOVED]); | |
4685 | ||
4686 | msg->packet_in_mask[1] = htonl(slave[OAM_PACKET_IN]); | |
4687 | msg->port_status_mask[1] = htonl(slave[OAM_PORT_STATUS]); | |
4688 | msg->flow_removed_mask[1] = htonl(slave[OAM_FLOW_REMOVED]); | |
4689 | ||
4690 | ofconn_send_reply(ofconn, buf); | |
4691 | ||
4692 | return 0; | |
4693 | } | |
4694 | ||
a7349929 BP |
4695 | static enum ofperr |
4696 | handle_nxt_set_controller_id(struct ofconn *ofconn, | |
4697 | const struct ofp_header *oh) | |
4698 | { | |
982697a4 | 4699 | const struct nx_controller_id *nci = ofpmsg_body(oh); |
a7349929 | 4700 | |
a7349929 BP |
4701 | if (!is_all_zeros(nci->zero, sizeof nci->zero)) { |
4702 | return OFPERR_NXBRC_MUST_BE_ZERO; | |
4703 | } | |
4704 | ||
4705 | ofconn_set_controller_id(ofconn, ntohs(nci->controller_id)); | |
4706 | return 0; | |
4707 | } | |
4708 | ||
90bf1e07 | 4709 | static enum ofperr |
d1e2cf21 | 4710 | handle_barrier_request(struct ofconn *ofconn, const struct ofp_header *oh) |
246e61ea | 4711 | { |
246e61ea JP |
4712 | struct ofpbuf *buf; |
4713 | ||
7ee20df1 BP |
4714 | if (ofconn_has_pending_opgroups(ofconn)) { |
4715 | return OFPROTO_POSTPONE; | |
4716 | } | |
4717 | ||
982697a4 BP |
4718 | buf = ofpraw_alloc_reply((oh->version == OFP10_VERSION |
4719 | ? OFPRAW_OFPT10_BARRIER_REPLY | |
4720 | : OFPRAW_OFPT11_BARRIER_REPLY), oh, 0); | |
b0421aa2 | 4721 | ofconn_send_reply(ofconn, buf); |
246e61ea JP |
4722 | return 0; |
4723 | } | |
4724 | ||
2b07c8b1 BP |
4725 | static void |
4726 | ofproto_compose_flow_refresh_update(const struct rule *rule, | |
4727 | enum nx_flow_monitor_flags flags, | |
4728 | struct list *msgs) | |
15aaf599 | 4729 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
4730 | { |
4731 | struct ofoperation *op = rule->pending; | |
6f00e29b | 4732 | const struct rule_actions *actions; |
2b07c8b1 | 4733 | struct ofputil_flow_update fu; |
5cb7a798 | 4734 | struct match match; |
2b07c8b1 | 4735 | |
b277c7cc | 4736 | if (op && op->type == OFOPERATION_ADD) { |
2b07c8b1 BP |
4737 | /* We'll report the final flow when the operation completes. Reporting |
4738 | * it now would cause a duplicate report later. */ | |
4739 | return; | |
4740 | } | |
4741 | ||
4742 | fu.event = (flags & (NXFMF_INITIAL | NXFMF_ADD) | |
4743 | ? NXFME_ADDED : NXFME_MODIFIED); | |
4744 | fu.reason = 0; | |
d10976b7 | 4745 | ovs_mutex_lock(&rule->mutex); |
2b07c8b1 BP |
4746 | fu.idle_timeout = rule->idle_timeout; |
4747 | fu.hard_timeout = rule->hard_timeout; | |
d10976b7 | 4748 | ovs_mutex_unlock(&rule->mutex); |
2b07c8b1 BP |
4749 | fu.table_id = rule->table_id; |
4750 | fu.cookie = rule->flow_cookie; | |
5cb7a798 BP |
4751 | minimatch_expand(&rule->cr.match, &match); |
4752 | fu.match = &match; | |
6b140a4e | 4753 | fu.priority = rule->cr.priority; |
6f00e29b | 4754 | |
2b07c8b1 | 4755 | if (!(flags & NXFMF_ACTIONS)) { |
6f00e29b | 4756 | actions = NULL; |
2b07c8b1 | 4757 | } else if (!op) { |
06a0f3e2 | 4758 | actions = rule_get_actions(rule); |
2b07c8b1 BP |
4759 | } else { |
4760 | /* An operation is in progress. Use the previous version of the flow's | |
4761 | * actions, so that when the operation commits we report the change. */ | |
4762 | switch (op->type) { | |
4763 | case OFOPERATION_ADD: | |
428b2edd | 4764 | OVS_NOT_REACHED(); |
2b07c8b1 BP |
4765 | |
4766 | case OFOPERATION_MODIFY: | |
b277c7cc | 4767 | case OFOPERATION_REPLACE: |
06a0f3e2 | 4768 | actions = op->actions ? op->actions : rule_get_actions(rule); |
2b07c8b1 BP |
4769 | break; |
4770 | ||
4771 | case OFOPERATION_DELETE: | |
06a0f3e2 | 4772 | actions = rule_get_actions(rule); |
2b07c8b1 BP |
4773 | break; |
4774 | ||
4775 | default: | |
428b2edd | 4776 | OVS_NOT_REACHED(); |
2b07c8b1 BP |
4777 | } |
4778 | } | |
6f00e29b BP |
4779 | fu.ofpacts = actions ? actions->ofpacts : NULL; |
4780 | fu.ofpacts_len = actions ? actions->ofpacts_len : 0; | |
2b07c8b1 BP |
4781 | |
4782 | if (list_is_empty(msgs)) { | |
4783 | ofputil_start_flow_update(msgs); | |
4784 | } | |
4785 | ofputil_append_flow_update(&fu, msgs); | |
4786 | } | |
4787 | ||
4788 | void | |
a8e547c1 BP |
4789 | ofmonitor_compose_refresh_updates(struct rule_collection *rules, |
4790 | struct list *msgs) | |
15aaf599 | 4791 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 | 4792 | { |
a8e547c1 | 4793 | size_t i; |
2b07c8b1 | 4794 | |
a8e547c1 BP |
4795 | for (i = 0; i < rules->n; i++) { |
4796 | struct rule *rule = rules->rules[i]; | |
2b07c8b1 BP |
4797 | enum nx_flow_monitor_flags flags = rule->monitor_flags; |
4798 | rule->monitor_flags = 0; | |
4799 | ||
4800 | ofproto_compose_flow_refresh_update(rule, flags, msgs); | |
4801 | } | |
4802 | } | |
4803 | ||
4804 | static void | |
4805 | ofproto_collect_ofmonitor_refresh_rule(const struct ofmonitor *m, | |
4806 | struct rule *rule, uint64_t seqno, | |
a8e547c1 | 4807 | struct rule_collection *rules) |
15aaf599 | 4808 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
4809 | { |
4810 | enum nx_flow_monitor_flags update; | |
4811 | ||
4812 | if (ofproto_rule_is_hidden(rule)) { | |
4813 | return; | |
4814 | } | |
4815 | ||
4816 | if (!(rule->pending | |
4817 | ? ofoperation_has_out_port(rule->pending, m->out_port) | |
4818 | : ofproto_rule_has_out_port(rule, m->out_port))) { | |
4819 | return; | |
4820 | } | |
4821 | ||
4822 | if (seqno) { | |
4823 | if (rule->add_seqno > seqno) { | |
4824 | update = NXFMF_ADD | NXFMF_MODIFY; | |
4825 | } else if (rule->modify_seqno > seqno) { | |
4826 | update = NXFMF_MODIFY; | |
4827 | } else { | |
4828 | return; | |
4829 | } | |
4830 | ||
4831 | if (!(m->flags & update)) { | |
4832 | return; | |
4833 | } | |
4834 | } else { | |
4835 | update = NXFMF_INITIAL; | |
4836 | } | |
4837 | ||
4838 | if (!rule->monitor_flags) { | |
a8e547c1 | 4839 | rule_collection_add(rules, rule); |
2b07c8b1 BP |
4840 | } |
4841 | rule->monitor_flags |= update | (m->flags & NXFMF_ACTIONS); | |
4842 | } | |
4843 | ||
4844 | static void | |
4845 | ofproto_collect_ofmonitor_refresh_rules(const struct ofmonitor *m, | |
4846 | uint64_t seqno, | |
a8e547c1 | 4847 | struct rule_collection *rules) |
15aaf599 | 4848 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
4849 | { |
4850 | const struct ofproto *ofproto = ofconn_get_ofproto(m->ofconn); | |
4851 | const struct ofoperation *op; | |
4852 | const struct oftable *table; | |
81a76618 | 4853 | struct cls_rule target; |
2b07c8b1 | 4854 | |
5cb7a798 | 4855 | cls_rule_init_from_minimatch(&target, &m->match, 0); |
2b07c8b1 BP |
4856 | FOR_EACH_MATCHING_TABLE (table, m->table_id, ofproto) { |
4857 | struct cls_cursor cursor; | |
4858 | struct rule *rule; | |
4859 | ||
06f81620 | 4860 | fat_rwlock_rdlock(&table->cls.rwlock); |
81a76618 | 4861 | cls_cursor_init(&cursor, &table->cls, &target); |
2b07c8b1 | 4862 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { |
cb22974d | 4863 | ovs_assert(!rule->pending); /* XXX */ |
2b07c8b1 BP |
4864 | ofproto_collect_ofmonitor_refresh_rule(m, rule, seqno, rules); |
4865 | } | |
06f81620 | 4866 | fat_rwlock_unlock(&table->cls.rwlock); |
2b07c8b1 BP |
4867 | } |
4868 | ||
4869 | HMAP_FOR_EACH (op, hmap_node, &ofproto->deletions) { | |
4870 | struct rule *rule = op->rule; | |
4871 | ||
4872 | if (((m->table_id == 0xff | |
4873 | ? !(ofproto->tables[rule->table_id].flags & OFTABLE_HIDDEN) | |
4874 | : m->table_id == rule->table_id)) | |
81a76618 | 4875 | && cls_rule_is_loose_match(&rule->cr, &target.match)) { |
2b07c8b1 BP |
4876 | ofproto_collect_ofmonitor_refresh_rule(m, rule, seqno, rules); |
4877 | } | |
4878 | } | |
48d28ac1 | 4879 | cls_rule_destroy(&target); |
2b07c8b1 BP |
4880 | } |
4881 | ||
4882 | static void | |
4883 | ofproto_collect_ofmonitor_initial_rules(struct ofmonitor *m, | |
a8e547c1 | 4884 | struct rule_collection *rules) |
15aaf599 | 4885 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
4886 | { |
4887 | if (m->flags & NXFMF_INITIAL) { | |
4888 | ofproto_collect_ofmonitor_refresh_rules(m, 0, rules); | |
4889 | } | |
4890 | } | |
4891 | ||
4892 | void | |
4893 | ofmonitor_collect_resume_rules(struct ofmonitor *m, | |
a8e547c1 | 4894 | uint64_t seqno, struct rule_collection *rules) |
15aaf599 | 4895 | OVS_REQUIRES(ofproto_mutex) |
2b07c8b1 BP |
4896 | { |
4897 | ofproto_collect_ofmonitor_refresh_rules(m, seqno, rules); | |
4898 | } | |
4899 | ||
4900 | static enum ofperr | |
982697a4 | 4901 | handle_flow_monitor_request(struct ofconn *ofconn, const struct ofp_header *oh) |
15aaf599 | 4902 | OVS_EXCLUDED(ofproto_mutex) |
2b07c8b1 BP |
4903 | { |
4904 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
4905 | struct ofmonitor **monitors; | |
4906 | size_t n_monitors, allocated_monitors; | |
a8e547c1 | 4907 | struct rule_collection rules; |
2b07c8b1 BP |
4908 | struct list replies; |
4909 | enum ofperr error; | |
2b07c8b1 BP |
4910 | struct ofpbuf b; |
4911 | size_t i; | |
4912 | ||
4913 | error = 0; | |
982697a4 | 4914 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
2b07c8b1 BP |
4915 | monitors = NULL; |
4916 | n_monitors = allocated_monitors = 0; | |
15aaf599 BP |
4917 | |
4918 | ovs_mutex_lock(&ofproto_mutex); | |
2b07c8b1 BP |
4919 | for (;;) { |
4920 | struct ofputil_flow_monitor_request request; | |
4921 | struct ofmonitor *m; | |
4922 | int retval; | |
4923 | ||
4924 | retval = ofputil_decode_flow_monitor_request(&request, &b); | |
4925 | if (retval == EOF) { | |
4926 | break; | |
4927 | } else if (retval) { | |
4928 | error = retval; | |
4929 | goto error; | |
4930 | } | |
4931 | ||
4932 | if (request.table_id != 0xff | |
4933 | && request.table_id >= ofproto->n_tables) { | |
4934 | error = OFPERR_OFPBRC_BAD_TABLE_ID; | |
4935 | goto error; | |
4936 | } | |
4937 | ||
4938 | error = ofmonitor_create(&request, ofconn, &m); | |
4939 | if (error) { | |
4940 | goto error; | |
4941 | } | |
4942 | ||
4943 | if (n_monitors >= allocated_monitors) { | |
4944 | monitors = x2nrealloc(monitors, &allocated_monitors, | |
4945 | sizeof *monitors); | |
4946 | } | |
4947 | monitors[n_monitors++] = m; | |
4948 | } | |
4949 | ||
a8e547c1 | 4950 | rule_collection_init(&rules); |
2b07c8b1 BP |
4951 | for (i = 0; i < n_monitors; i++) { |
4952 | ofproto_collect_ofmonitor_initial_rules(monitors[i], &rules); | |
4953 | } | |
4954 | ||
982697a4 | 4955 | ofpmp_init(&replies, oh); |
2b07c8b1 | 4956 | ofmonitor_compose_refresh_updates(&rules, &replies); |
15aaf599 BP |
4957 | ovs_mutex_unlock(&ofproto_mutex); |
4958 | ||
a8e547c1 BP |
4959 | rule_collection_destroy(&rules); |
4960 | ||
2b07c8b1 | 4961 | ofconn_send_replies(ofconn, &replies); |
2b07c8b1 BP |
4962 | free(monitors); |
4963 | ||
4964 | return 0; | |
4965 | ||
4966 | error: | |
4967 | for (i = 0; i < n_monitors; i++) { | |
4968 | ofmonitor_destroy(monitors[i]); | |
4969 | } | |
4970 | free(monitors); | |
4cd1bc9d BP |
4971 | ovs_mutex_unlock(&ofproto_mutex); |
4972 | ||
2b07c8b1 BP |
4973 | return error; |
4974 | } | |
4975 | ||
4976 | static enum ofperr | |
4977 | handle_flow_monitor_cancel(struct ofconn *ofconn, const struct ofp_header *oh) | |
15aaf599 | 4978 | OVS_EXCLUDED(ofproto_mutex) |
2b07c8b1 BP |
4979 | { |
4980 | struct ofmonitor *m; | |
15aaf599 | 4981 | enum ofperr error; |
2b07c8b1 BP |
4982 | uint32_t id; |
4983 | ||
4984 | id = ofputil_decode_flow_monitor_cancel(oh); | |
15aaf599 BP |
4985 | |
4986 | ovs_mutex_lock(&ofproto_mutex); | |
2b07c8b1 | 4987 | m = ofmonitor_lookup(ofconn, id); |
15aaf599 BP |
4988 | if (m) { |
4989 | ofmonitor_destroy(m); | |
4990 | error = 0; | |
4991 | } else { | |
4992 | error = OFPERR_NXBRC_FM_BAD_ID; | |
2b07c8b1 | 4993 | } |
15aaf599 | 4994 | ovs_mutex_unlock(&ofproto_mutex); |
2b07c8b1 | 4995 | |
15aaf599 | 4996 | return error; |
2b07c8b1 BP |
4997 | } |
4998 | ||
9cae45dc JR |
4999 | /* Meters implementation. |
5000 | * | |
5001 | * Meter table entry, indexed by the OpenFlow meter_id. | |
5002 | * These are always dynamically allocated to allocate enough space for | |
5003 | * the bands. | |
5004 | * 'created' is used to compute the duration for meter stats. | |
5005 | * 'list rules' is needed so that we can delete the dependent rules when the | |
5006 | * meter table entry is deleted. | |
5007 | * 'provider_meter_id' is for the provider's private use. | |
5008 | */ | |
5009 | struct meter { | |
5010 | long long int created; /* Time created. */ | |
5011 | struct list rules; /* List of "struct rule_dpif"s. */ | |
5012 | ofproto_meter_id provider_meter_id; | |
5013 | uint16_t flags; /* Meter flags. */ | |
5014 | uint16_t n_bands; /* Number of meter bands. */ | |
5015 | struct ofputil_meter_band *bands; | |
5016 | }; | |
5017 | ||
5018 | /* | |
5019 | * This is used in instruction validation at flow set-up time, | |
5020 | * as flows may not use non-existing meters. | |
9cae45dc JR |
5021 | * Return value of UINT32_MAX signifies an invalid meter. |
5022 | */ | |
65efd2ab JR |
5023 | static uint32_t |
5024 | get_provider_meter_id(const struct ofproto *ofproto, uint32_t of_meter_id) | |
9cae45dc JR |
5025 | { |
5026 | if (of_meter_id && of_meter_id <= ofproto->meter_features.max_meters) { | |
5027 | const struct meter *meter = ofproto->meters[of_meter_id]; | |
5028 | if (meter) { | |
5029 | return meter->provider_meter_id.uint32; | |
5030 | } | |
5031 | } | |
5032 | return UINT32_MAX; | |
5033 | } | |
5034 | ||
5035 | static void | |
5036 | meter_update(struct meter *meter, const struct ofputil_meter_config *config) | |
5037 | { | |
5038 | free(meter->bands); | |
5039 | ||
5040 | meter->flags = config->flags; | |
5041 | meter->n_bands = config->n_bands; | |
5042 | meter->bands = xmemdup(config->bands, | |
5043 | config->n_bands * sizeof *meter->bands); | |
5044 | } | |
5045 | ||
5046 | static struct meter * | |
5047 | meter_create(const struct ofputil_meter_config *config, | |
5048 | ofproto_meter_id provider_meter_id) | |
5049 | { | |
5050 | struct meter *meter; | |
5051 | ||
5052 | meter = xzalloc(sizeof *meter); | |
5053 | meter->provider_meter_id = provider_meter_id; | |
5054 | meter->created = time_msec(); | |
5055 | list_init(&meter->rules); | |
5056 | ||
5057 | meter_update(meter, config); | |
5058 | ||
5059 | return meter; | |
5060 | } | |
5061 | ||
6b3f7f02 JR |
5062 | static void |
5063 | meter_delete(struct ofproto *ofproto, uint32_t first, uint32_t last) | |
15aaf599 | 5064 | OVS_REQUIRES(ofproto_mutex) |
6b3f7f02 JR |
5065 | { |
5066 | uint32_t mid; | |
5067 | for (mid = first; mid <= last; ++mid) { | |
5068 | struct meter *meter = ofproto->meters[mid]; | |
5069 | if (meter) { | |
5070 | ofproto->meters[mid] = NULL; | |
5071 | ofproto->ofproto_class->meter_del(ofproto, | |
5072 | meter->provider_meter_id); | |
5073 | free(meter->bands); | |
5074 | free(meter); | |
5075 | } | |
5076 | } | |
5077 | } | |
5078 | ||
9cae45dc JR |
5079 | static enum ofperr |
5080 | handle_add_meter(struct ofproto *ofproto, struct ofputil_meter_mod *mm) | |
5081 | { | |
5082 | ofproto_meter_id provider_meter_id = { UINT32_MAX }; | |
5083 | struct meter **meterp = &ofproto->meters[mm->meter.meter_id]; | |
5084 | enum ofperr error; | |
5085 | ||
5086 | if (*meterp) { | |
5087 | return OFPERR_OFPMMFC_METER_EXISTS; | |
5088 | } | |
5089 | ||
5090 | error = ofproto->ofproto_class->meter_set(ofproto, &provider_meter_id, | |
5091 | &mm->meter); | |
5092 | if (!error) { | |
5093 | ovs_assert(provider_meter_id.uint32 != UINT32_MAX); | |
5094 | *meterp = meter_create(&mm->meter, provider_meter_id); | |
5095 | } | |
f0f8c6c2 | 5096 | return error; |
9cae45dc JR |
5097 | } |
5098 | ||
5099 | static enum ofperr | |
5100 | handle_modify_meter(struct ofproto *ofproto, struct ofputil_meter_mod *mm) | |
5101 | { | |
5102 | struct meter *meter = ofproto->meters[mm->meter.meter_id]; | |
5103 | enum ofperr error; | |
e555eb7c | 5104 | uint32_t provider_meter_id; |
9cae45dc JR |
5105 | |
5106 | if (!meter) { | |
5107 | return OFPERR_OFPMMFC_UNKNOWN_METER; | |
5108 | } | |
5109 | ||
e555eb7c | 5110 | provider_meter_id = meter->provider_meter_id.uint32; |
9cae45dc JR |
5111 | error = ofproto->ofproto_class->meter_set(ofproto, |
5112 | &meter->provider_meter_id, | |
5113 | &mm->meter); | |
e555eb7c | 5114 | ovs_assert(meter->provider_meter_id.uint32 == provider_meter_id); |
9cae45dc JR |
5115 | if (!error) { |
5116 | meter_update(meter, &mm->meter); | |
5117 | } | |
5118 | return error; | |
5119 | } | |
5120 | ||
5121 | static enum ofperr | |
5122 | handle_delete_meter(struct ofconn *ofconn, const struct ofp_header *oh, | |
5123 | struct ofputil_meter_mod *mm) | |
15aaf599 | 5124 | OVS_EXCLUDED(ofproto_mutex) |
9cae45dc JR |
5125 | { |
5126 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
5127 | uint32_t meter_id = mm->meter.meter_id; | |
a8e547c1 BP |
5128 | struct rule_collection rules; |
5129 | enum ofperr error = 0; | |
9cae45dc | 5130 | uint32_t first, last; |
9cae45dc JR |
5131 | |
5132 | if (meter_id == OFPM13_ALL) { | |
5133 | first = 1; | |
5134 | last = ofproto->meter_features.max_meters; | |
5135 | } else { | |
5136 | if (!meter_id || meter_id > ofproto->meter_features.max_meters) { | |
5137 | return 0; | |
5138 | } | |
5139 | first = last = meter_id; | |
5140 | } | |
5141 | ||
5142 | /* First delete the rules that use this meter. If any of those rules are | |
5143 | * currently being modified, postpone the whole operation until later. */ | |
a8e547c1 | 5144 | rule_collection_init(&rules); |
15aaf599 | 5145 | ovs_mutex_lock(&ofproto_mutex); |
9cae45dc JR |
5146 | for (meter_id = first; meter_id <= last; ++meter_id) { |
5147 | struct meter *meter = ofproto->meters[meter_id]; | |
5148 | if (meter && !list_is_empty(&meter->rules)) { | |
5149 | struct rule *rule; | |
5150 | ||
5151 | LIST_FOR_EACH (rule, meter_list_node, &meter->rules) { | |
5152 | if (rule->pending) { | |
a8e547c1 BP |
5153 | error = OFPROTO_POSTPONE; |
5154 | goto exit; | |
9cae45dc | 5155 | } |
a8e547c1 | 5156 | rule_collection_add(&rules, rule); |
9cae45dc JR |
5157 | } |
5158 | } | |
5159 | } | |
a8e547c1 | 5160 | if (rules.n > 0) { |
9cae45dc JR |
5161 | delete_flows__(ofproto, ofconn, oh, &rules, OFPRR_METER_DELETE); |
5162 | } | |
5163 | ||
5164 | /* Delete the meters. */ | |
6b3f7f02 | 5165 | meter_delete(ofproto, first, last); |
9cae45dc | 5166 | |
a8e547c1 | 5167 | exit: |
15aaf599 | 5168 | ovs_mutex_unlock(&ofproto_mutex); |
a8e547c1 BP |
5169 | rule_collection_destroy(&rules); |
5170 | ||
5171 | return error; | |
9cae45dc JR |
5172 | } |
5173 | ||
5174 | static enum ofperr | |
5175 | handle_meter_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
5176 | { | |
5177 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
5178 | struct ofputil_meter_mod mm; | |
5179 | uint64_t bands_stub[256 / 8]; | |
5180 | struct ofpbuf bands; | |
5181 | uint32_t meter_id; | |
5182 | enum ofperr error; | |
5183 | ||
5184 | error = reject_slave_controller(ofconn); | |
5185 | if (error) { | |
5186 | return error; | |
5187 | } | |
5188 | ||
5189 | ofpbuf_use_stub(&bands, bands_stub, sizeof bands_stub); | |
5190 | ||
5191 | error = ofputil_decode_meter_mod(oh, &mm, &bands); | |
5192 | if (error) { | |
5193 | goto exit_free_bands; | |
5194 | } | |
5195 | ||
5196 | meter_id = mm.meter.meter_id; | |
5197 | ||
5198 | if (mm.command != OFPMC13_DELETE) { | |
5199 | /* Fails also when meters are not implemented by the provider. */ | |
b31e8700 | 5200 | if (meter_id == 0 || meter_id > OFPM13_MAX) { |
9cae45dc JR |
5201 | error = OFPERR_OFPMMFC_INVALID_METER; |
5202 | goto exit_free_bands; | |
b31e8700 JR |
5203 | } else if (meter_id > ofproto->meter_features.max_meters) { |
5204 | error = OFPERR_OFPMMFC_OUT_OF_METERS; | |
5205 | goto exit_free_bands; | |
9cae45dc JR |
5206 | } |
5207 | if (mm.meter.n_bands > ofproto->meter_features.max_bands) { | |
5208 | error = OFPERR_OFPMMFC_OUT_OF_BANDS; | |
5209 | goto exit_free_bands; | |
5210 | } | |
5211 | } | |
5212 | ||
5213 | switch (mm.command) { | |
5214 | case OFPMC13_ADD: | |
5215 | error = handle_add_meter(ofproto, &mm); | |
5216 | break; | |
5217 | ||
5218 | case OFPMC13_MODIFY: | |
5219 | error = handle_modify_meter(ofproto, &mm); | |
5220 | break; | |
5221 | ||
5222 | case OFPMC13_DELETE: | |
5223 | error = handle_delete_meter(ofconn, oh, &mm); | |
5224 | break; | |
5225 | ||
5226 | default: | |
5227 | error = OFPERR_OFPMMFC_BAD_COMMAND; | |
5228 | break; | |
5229 | } | |
5230 | ||
5231 | exit_free_bands: | |
5232 | ofpbuf_uninit(&bands); | |
5233 | return error; | |
5234 | } | |
5235 | ||
5236 | static enum ofperr | |
5237 | handle_meter_features_request(struct ofconn *ofconn, | |
5238 | const struct ofp_header *request) | |
5239 | { | |
5240 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
5241 | struct ofputil_meter_features features; | |
5242 | struct ofpbuf *b; | |
5243 | ||
5244 | if (ofproto->ofproto_class->meter_get_features) { | |
5245 | ofproto->ofproto_class->meter_get_features(ofproto, &features); | |
5246 | } else { | |
5247 | memset(&features, 0, sizeof features); | |
5248 | } | |
5249 | b = ofputil_encode_meter_features_reply(&features, request); | |
5250 | ||
5251 | ofconn_send_reply(ofconn, b); | |
5252 | return 0; | |
5253 | } | |
5254 | ||
5255 | static enum ofperr | |
5256 | handle_meter_request(struct ofconn *ofconn, const struct ofp_header *request, | |
5257 | enum ofptype type) | |
5258 | { | |
5259 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
5260 | struct list replies; | |
5261 | uint64_t bands_stub[256 / 8]; | |
5262 | struct ofpbuf bands; | |
5263 | uint32_t meter_id, first, last; | |
5264 | ||
5265 | ofputil_decode_meter_request(request, &meter_id); | |
5266 | ||
5267 | if (meter_id == OFPM13_ALL) { | |
5268 | first = 1; | |
5269 | last = ofproto->meter_features.max_meters; | |
5270 | } else { | |
5271 | if (!meter_id || meter_id > ofproto->meter_features.max_meters || | |
5272 | !ofproto->meters[meter_id]) { | |
5273 | return OFPERR_OFPMMFC_UNKNOWN_METER; | |
5274 | } | |
5275 | first = last = meter_id; | |
5276 | } | |
5277 | ||
5278 | ofpbuf_use_stub(&bands, bands_stub, sizeof bands_stub); | |
5279 | ofpmp_init(&replies, request); | |
5280 | ||
5281 | for (meter_id = first; meter_id <= last; ++meter_id) { | |
5282 | struct meter *meter = ofproto->meters[meter_id]; | |
5283 | if (!meter) { | |
5284 | continue; /* Skip non-existing meters. */ | |
5285 | } | |
261bd854 | 5286 | if (type == OFPTYPE_METER_STATS_REQUEST) { |
9cae45dc JR |
5287 | struct ofputil_meter_stats stats; |
5288 | ||
5289 | stats.meter_id = meter_id; | |
5290 | ||
5291 | /* Provider sets the packet and byte counts, we do the rest. */ | |
5292 | stats.flow_count = list_size(&meter->rules); | |
5293 | calc_duration(meter->created, time_msec(), | |
5294 | &stats.duration_sec, &stats.duration_nsec); | |
5295 | stats.n_bands = meter->n_bands; | |
5296 | ofpbuf_clear(&bands); | |
5297 | stats.bands | |
5298 | = ofpbuf_put_uninit(&bands, | |
5299 | meter->n_bands * sizeof *stats.bands); | |
5300 | ||
5301 | if (!ofproto->ofproto_class->meter_get(ofproto, | |
5302 | meter->provider_meter_id, | |
5303 | &stats)) { | |
5304 | ofputil_append_meter_stats(&replies, &stats); | |
5305 | } | |
5306 | } else { /* type == OFPTYPE_METER_CONFIG_REQUEST */ | |
5307 | struct ofputil_meter_config config; | |
5308 | ||
5309 | config.meter_id = meter_id; | |
5310 | config.flags = meter->flags; | |
5311 | config.n_bands = meter->n_bands; | |
5312 | config.bands = meter->bands; | |
5313 | ofputil_append_meter_config(&replies, &config); | |
5314 | } | |
5315 | } | |
5316 | ||
5317 | ofconn_send_replies(ofconn, &replies); | |
5318 | ofpbuf_uninit(&bands); | |
5319 | return 0; | |
5320 | } | |
5321 | ||
7395c052 NZ |
5322 | bool |
5323 | ofproto_group_lookup(const struct ofproto *ofproto, uint32_t group_id, | |
5324 | struct ofgroup **group) | |
5325 | OVS_TRY_RDLOCK(true, (*group)->rwlock) | |
5326 | { | |
5327 | ovs_rwlock_rdlock(&ofproto->groups_rwlock); | |
5328 | HMAP_FOR_EACH_IN_BUCKET (*group, hmap_node, | |
5329 | hash_int(group_id, 0), &ofproto->groups) { | |
5330 | if ((*group)->group_id == group_id) { | |
5331 | ovs_rwlock_rdlock(&(*group)->rwlock); | |
5332 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
5333 | return true; | |
5334 | } | |
5335 | } | |
5336 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
5337 | return false; | |
5338 | } | |
5339 | ||
5340 | void | |
5341 | ofproto_group_release(struct ofgroup *group) | |
5342 | OVS_RELEASES(group->rwlock) | |
5343 | { | |
5344 | ovs_rwlock_unlock(&group->rwlock); | |
5345 | } | |
5346 | ||
5347 | static bool | |
5348 | ofproto_group_write_lookup(const struct ofproto *ofproto, uint32_t group_id, | |
5349 | struct ofgroup **group) | |
5350 | OVS_TRY_WRLOCK(true, ofproto->groups_rwlock) | |
5351 | OVS_TRY_WRLOCK(true, (*group)->rwlock) | |
5352 | { | |
5353 | ovs_rwlock_wrlock(&ofproto->groups_rwlock); | |
5354 | HMAP_FOR_EACH_IN_BUCKET (*group, hmap_node, | |
5355 | hash_int(group_id, 0), &ofproto->groups) { | |
5356 | if ((*group)->group_id == group_id) { | |
5357 | ovs_rwlock_wrlock(&(*group)->rwlock); | |
5358 | return true; | |
5359 | } | |
5360 | } | |
5361 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
5362 | return false; | |
5363 | } | |
5364 | ||
5365 | static bool | |
7e9f8266 | 5366 | ofproto_group_exists__(const struct ofproto *ofproto, uint32_t group_id) |
7395c052 NZ |
5367 | OVS_REQ_RDLOCK(ofproto->groups_rwlock) |
5368 | { | |
5369 | struct ofgroup *grp; | |
5370 | ||
5371 | HMAP_FOR_EACH_IN_BUCKET (grp, hmap_node, | |
5372 | hash_int(group_id, 0), &ofproto->groups) { | |
5373 | if (grp->group_id == group_id) { | |
5374 | return true; | |
5375 | } | |
5376 | } | |
5377 | return false; | |
5378 | } | |
5379 | ||
7e9f8266 BP |
5380 | static bool |
5381 | ofproto_group_exists(const struct ofproto *ofproto, uint32_t group_id) | |
5382 | OVS_EXCLUDED(ofproto->groups_rwlock) | |
5383 | { | |
5384 | bool exists; | |
5385 | ||
5386 | ovs_rwlock_rdlock(&ofproto->groups_rwlock); | |
5387 | exists = ofproto_group_exists__(ofproto, group_id); | |
5388 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
5389 | ||
5390 | return exists; | |
5391 | } | |
5392 | ||
732feb93 SH |
5393 | static uint32_t |
5394 | group_get_ref_count(struct ofgroup *group) | |
5395 | OVS_EXCLUDED(ofproto_mutex) | |
5396 | { | |
5397 | struct ofproto *ofproto = group->ofproto; | |
5398 | struct rule_criteria criteria; | |
5399 | struct rule_collection rules; | |
5400 | struct match match; | |
5401 | enum ofperr error; | |
5402 | uint32_t count; | |
5403 | ||
5404 | match_init_catchall(&match); | |
5405 | rule_criteria_init(&criteria, 0xff, &match, 0, htonll(0), htonll(0), | |
5406 | OFPP_ANY, group->group_id); | |
5407 | ovs_mutex_lock(&ofproto_mutex); | |
5408 | error = collect_rules_loose(ofproto, &criteria, &rules); | |
5409 | ovs_mutex_unlock(&ofproto_mutex); | |
5410 | rule_criteria_destroy(&criteria); | |
5411 | ||
5412 | count = !error && rules.n < UINT32_MAX ? rules.n : UINT32_MAX; | |
5413 | ||
5414 | rule_collection_destroy(&rules); | |
5415 | return count; | |
5416 | } | |
5417 | ||
7395c052 NZ |
5418 | static void |
5419 | append_group_stats(struct ofgroup *group, struct list *replies) | |
5420 | OVS_REQ_RDLOCK(group->rwlock) | |
5421 | { | |
5422 | struct ofputil_group_stats ogs; | |
5423 | struct ofproto *ofproto = group->ofproto; | |
5424 | long long int now = time_msec(); | |
5425 | int error; | |
5426 | ||
646b2a9c SH |
5427 | ogs.bucket_stats = xmalloc(group->n_buckets * sizeof *ogs.bucket_stats); |
5428 | ||
732feb93 SH |
5429 | /* Provider sets the packet and byte counts, we do the rest. */ |
5430 | ogs.ref_count = group_get_ref_count(group); | |
5431 | ogs.n_buckets = group->n_buckets; | |
5432 | ||
7395c052 NZ |
5433 | error = (ofproto->ofproto_class->group_get_stats |
5434 | ? ofproto->ofproto_class->group_get_stats(group, &ogs) | |
5435 | : EOPNOTSUPP); | |
5436 | if (error) { | |
7395c052 NZ |
5437 | ogs.packet_count = UINT64_MAX; |
5438 | ogs.byte_count = UINT64_MAX; | |
7395c052 NZ |
5439 | memset(ogs.bucket_stats, 0xff, |
5440 | ogs.n_buckets * sizeof *ogs.bucket_stats); | |
5441 | } | |
5442 | ||
5443 | ogs.group_id = group->group_id; | |
5444 | calc_duration(group->created, now, &ogs.duration_sec, &ogs.duration_nsec); | |
5445 | ||
5446 | ofputil_append_group_stats(replies, &ogs); | |
646b2a9c SH |
5447 | |
5448 | free(ogs.bucket_stats); | |
7395c052 NZ |
5449 | } |
5450 | ||
5451 | static enum ofperr | |
5452 | handle_group_stats_request(struct ofconn *ofconn, | |
5453 | const struct ofp_header *request) | |
5454 | { | |
5455 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
5456 | struct list replies; | |
5457 | enum ofperr error; | |
5458 | struct ofgroup *group; | |
5459 | uint32_t group_id; | |
5460 | ||
5461 | error = ofputil_decode_group_stats_request(request, &group_id); | |
5462 | if (error) { | |
5463 | return error; | |
5464 | } | |
5465 | ||
5466 | ofpmp_init(&replies, request); | |
5467 | ||
5468 | if (group_id == OFPG_ALL) { | |
5469 | ovs_rwlock_rdlock(&ofproto->groups_rwlock); | |
5470 | HMAP_FOR_EACH (group, hmap_node, &ofproto->groups) { | |
5471 | ovs_rwlock_rdlock(&group->rwlock); | |
5472 | append_group_stats(group, &replies); | |
5473 | ovs_rwlock_unlock(&group->rwlock); | |
5474 | } | |
5475 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
5476 | } else { | |
5477 | if (ofproto_group_lookup(ofproto, group_id, &group)) { | |
5478 | append_group_stats(group, &replies); | |
5479 | ofproto_group_release(group); | |
5480 | } | |
5481 | } | |
5482 | ||
5483 | ofconn_send_replies(ofconn, &replies); | |
5484 | ||
5485 | return 0; | |
5486 | } | |
5487 | ||
5488 | static enum ofperr | |
5489 | handle_group_desc_stats_request(struct ofconn *ofconn, | |
5490 | const struct ofp_header *request) | |
5491 | { | |
5492 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
5493 | struct list replies; | |
5494 | struct ofputil_group_desc gds; | |
5495 | struct ofgroup *group; | |
5496 | ||
5497 | ofpmp_init(&replies, request); | |
5498 | ||
5499 | ovs_rwlock_rdlock(&ofproto->groups_rwlock); | |
5500 | HMAP_FOR_EACH (group, hmap_node, &ofproto->groups) { | |
5501 | gds.group_id = group->group_id; | |
5502 | gds.type = group->type; | |
5503 | ofputil_append_group_desc_reply(&gds, &group->buckets, &replies); | |
5504 | } | |
5505 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
5506 | ||
5507 | ofconn_send_replies(ofconn, &replies); | |
5508 | ||
5509 | return 0; | |
5510 | } | |
5511 | ||
5512 | static enum ofperr | |
5513 | handle_group_features_stats_request(struct ofconn *ofconn, | |
5514 | const struct ofp_header *request) | |
5515 | { | |
5516 | struct ofproto *p = ofconn_get_ofproto(ofconn); | |
5517 | struct ofpbuf *msg; | |
5518 | ||
5519 | msg = ofputil_encode_group_features_reply(&p->ogf, request); | |
5520 | if (msg) { | |
5521 | ofconn_send_reply(ofconn, msg); | |
5522 | } | |
5523 | ||
5524 | return 0; | |
5525 | } | |
5526 | ||
e8f9a7bb VG |
5527 | static enum ofperr |
5528 | handle_queue_get_config_request(struct ofconn *ofconn, | |
5529 | const struct ofp_header *oh) | |
5530 | { | |
5531 | struct ofproto *p = ofconn_get_ofproto(ofconn); | |
5532 | struct netdev_queue_dump queue_dump; | |
5533 | struct ofport *ofport; | |
5534 | unsigned int queue_id; | |
5535 | struct ofpbuf *reply; | |
5536 | struct smap details; | |
5537 | ofp_port_t request; | |
5538 | enum ofperr error; | |
5539 | ||
5540 | error = ofputil_decode_queue_get_config_request(oh, &request); | |
5541 | if (error) { | |
5542 | return error; | |
5543 | } | |
5544 | ||
5545 | ofport = ofproto_get_port(p, request); | |
5546 | if (!ofport) { | |
5547 | return OFPERR_OFPQOFC_BAD_PORT; | |
5548 | } | |
5549 | ||
5550 | reply = ofputil_encode_queue_get_config_reply(oh); | |
5551 | ||
5552 | smap_init(&details); | |
5553 | NETDEV_QUEUE_FOR_EACH (&queue_id, &details, &queue_dump, ofport->netdev) { | |
5554 | struct ofputil_queue_config queue; | |
5555 | ||
5556 | /* None of the existing queues have compatible properties, so we | |
5557 | * hard-code omitting min_rate and max_rate. */ | |
5558 | queue.queue_id = queue_id; | |
5559 | queue.min_rate = UINT16_MAX; | |
5560 | queue.max_rate = UINT16_MAX; | |
5561 | ofputil_append_queue_get_config_reply(reply, &queue); | |
5562 | } | |
5563 | smap_destroy(&details); | |
5564 | ||
5565 | ofconn_send_reply(ofconn, reply); | |
5566 | ||
5567 | return 0; | |
5568 | } | |
5569 | ||
7395c052 NZ |
5570 | /* Implements OFPGC11_ADD |
5571 | * in which no matching flow already exists in the flow table. | |
5572 | * | |
5573 | * Adds the flow specified by 'ofm', which is followed by 'n_actions' | |
5574 | * ofp_actions, to the ofproto's flow table. Returns 0 on success, an OpenFlow | |
5575 | * error code on failure, or OFPROTO_POSTPONE if the operation cannot be | |
5576 | * initiated now but may be retried later. | |
5577 | * | |
5578 | * Upon successful return, takes ownership of 'fm->ofpacts'. On failure, | |
5579 | * ownership remains with the caller. | |
5580 | * | |
5581 | * 'ofconn' is used to retrieve the packet buffer specified in ofm->buffer_id, | |
5582 | * if any. */ | |
5583 | static enum ofperr | |
5584 | add_group(struct ofproto *ofproto, struct ofputil_group_mod *gm) | |
5585 | { | |
5586 | struct ofgroup *ofgroup; | |
5587 | enum ofperr error; | |
5588 | ||
5589 | if (gm->group_id > OFPG_MAX) { | |
5590 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
5591 | } | |
5592 | if (gm->type > OFPGT11_FF) { | |
5593 | return OFPERR_OFPGMFC_BAD_TYPE; | |
5594 | } | |
5595 | ||
5596 | /* Allocate new group and initialize it. */ | |
5597 | ofgroup = ofproto->ofproto_class->group_alloc(); | |
5598 | if (!ofgroup) { | |
5599 | VLOG_WARN_RL(&rl, "%s: failed to create group", ofproto->name); | |
5600 | return OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
5601 | } | |
5602 | ||
5603 | ovs_rwlock_init(&ofgroup->rwlock); | |
5604 | ofgroup->ofproto = ofproto; | |
5605 | ofgroup->group_id = gm->group_id; | |
5606 | ofgroup->type = gm->type; | |
5607 | ofgroup->created = ofgroup->modified = time_msec(); | |
5608 | ||
5609 | list_move(&ofgroup->buckets, &gm->buckets); | |
5610 | ofgroup->n_buckets = list_size(&ofgroup->buckets); | |
5611 | ||
5612 | /* Construct called BEFORE any locks are held. */ | |
5613 | error = ofproto->ofproto_class->group_construct(ofgroup); | |
5614 | if (error) { | |
5615 | goto free_out; | |
5616 | } | |
5617 | ||
5618 | /* We wrlock as late as possible to minimize the time we jam any other | |
5619 | * threads: No visible state changes before acquiring the lock. */ | |
5620 | ovs_rwlock_wrlock(&ofproto->groups_rwlock); | |
5621 | ||
5622 | if (ofproto->n_groups[gm->type] >= ofproto->ogf.max_groups[gm->type]) { | |
5623 | error = OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
5624 | goto unlock_out; | |
5625 | } | |
5626 | ||
7e9f8266 | 5627 | if (ofproto_group_exists__(ofproto, gm->group_id)) { |
7395c052 NZ |
5628 | error = OFPERR_OFPGMFC_GROUP_EXISTS; |
5629 | goto unlock_out; | |
5630 | } | |
5631 | ||
5632 | if (!error) { | |
5633 | /* Insert new group. */ | |
5634 | hmap_insert(&ofproto->groups, &ofgroup->hmap_node, | |
5635 | hash_int(ofgroup->group_id, 0)); | |
5636 | ofproto->n_groups[ofgroup->type]++; | |
5637 | ||
5638 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
5639 | return error; | |
5640 | } | |
5641 | ||
5642 | unlock_out: | |
5643 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
5644 | ofproto->ofproto_class->group_destruct(ofgroup); | |
5645 | free_out: | |
5646 | ofputil_bucket_list_destroy(&ofgroup->buckets); | |
5647 | ofproto->ofproto_class->group_dealloc(ofgroup); | |
5648 | ||
5649 | return error; | |
5650 | } | |
5651 | ||
5652 | /* Implements OFPFC_MODIFY. Returns 0 on success or an OpenFlow error code on | |
5653 | * failure. | |
5654 | * | |
5655 | * 'ofconn' is used to retrieve the packet buffer specified in fm->buffer_id, | |
5656 | * if any. */ | |
5657 | static enum ofperr | |
5658 | modify_group(struct ofproto *ofproto, struct ofputil_group_mod *gm) | |
5659 | { | |
5660 | struct ofgroup *ofgroup; | |
5661 | struct ofgroup *victim; | |
5662 | enum ofperr error; | |
5663 | ||
5664 | if (gm->group_id > OFPG_MAX) { | |
5665 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
5666 | } | |
5667 | ||
5668 | if (gm->type > OFPGT11_FF) { | |
5669 | return OFPERR_OFPGMFC_BAD_TYPE; | |
5670 | } | |
5671 | ||
5672 | victim = ofproto->ofproto_class->group_alloc(); | |
5673 | if (!victim) { | |
5674 | VLOG_WARN_RL(&rl, "%s: failed to allocate group", ofproto->name); | |
5675 | return OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
5676 | } | |
5677 | ||
5678 | if (!ofproto_group_write_lookup(ofproto, gm->group_id, &ofgroup)) { | |
5679 | error = OFPERR_OFPGMFC_UNKNOWN_GROUP; | |
5680 | goto free_out; | |
5681 | } | |
5682 | /* Both group's and its container's write locks held now. | |
5683 | * Also, n_groups[] is protected by ofproto->groups_rwlock. */ | |
5684 | if (ofgroup->type != gm->type | |
5685 | && ofproto->n_groups[gm->type] >= ofproto->ogf.max_groups[gm->type]) { | |
5686 | error = OFPERR_OFPGMFC_OUT_OF_GROUPS; | |
5687 | goto unlock_out; | |
5688 | } | |
5689 | ||
5690 | *victim = *ofgroup; | |
5691 | list_move(&victim->buckets, &ofgroup->buckets); | |
5692 | ||
5693 | ofgroup->type = gm->type; | |
5694 | list_move(&ofgroup->buckets, &gm->buckets); | |
5695 | ofgroup->n_buckets = list_size(&ofgroup->buckets); | |
5696 | ||
5697 | error = ofproto->ofproto_class->group_modify(ofgroup, victim); | |
5698 | if (!error) { | |
5699 | ofputil_bucket_list_destroy(&victim->buckets); | |
5700 | ofproto->n_groups[victim->type]--; | |
5701 | ofproto->n_groups[ofgroup->type]++; | |
5702 | ofgroup->modified = time_msec(); | |
5703 | } else { | |
5704 | ofputil_bucket_list_destroy(&ofgroup->buckets); | |
5705 | ||
5706 | *ofgroup = *victim; | |
5707 | list_move(&ofgroup->buckets, &victim->buckets); | |
5708 | } | |
5709 | ||
5710 | unlock_out: | |
5711 | ovs_rwlock_unlock(&ofgroup->rwlock); | |
5712 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
5713 | free_out: | |
5714 | ofproto->ofproto_class->group_dealloc(victim); | |
5715 | return error; | |
5716 | } | |
5717 | ||
5718 | static void | |
5719 | delete_group__(struct ofproto *ofproto, struct ofgroup *ofgroup) | |
5720 | OVS_RELEASES(ofproto->groups_rwlock) | |
5721 | { | |
276f6518 SH |
5722 | struct match match; |
5723 | struct ofputil_flow_mod fm; | |
5724 | ||
5725 | /* Delete all flow entries containing this group in a group action */ | |
5726 | match_init_catchall(&match); | |
5727 | flow_mod_init(&fm, &match, 0, NULL, 0, OFPFC_DELETE); | |
5728 | fm.out_group = ofgroup->group_id; | |
5729 | handle_flow_mod__(ofproto, NULL, &fm, NULL); | |
5730 | ||
7395c052 NZ |
5731 | /* Must wait until existing readers are done, |
5732 | * while holding the container's write lock at the same time. */ | |
5733 | ovs_rwlock_wrlock(&ofgroup->rwlock); | |
5734 | hmap_remove(&ofproto->groups, &ofgroup->hmap_node); | |
5735 | /* No-one can find this group any more. */ | |
5736 | ofproto->n_groups[ofgroup->type]--; | |
5737 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
5738 | ||
5739 | ofproto->ofproto_class->group_destruct(ofgroup); | |
5740 | ofputil_bucket_list_destroy(&ofgroup->buckets); | |
5741 | ovs_rwlock_unlock(&ofgroup->rwlock); | |
5742 | ovs_rwlock_destroy(&ofgroup->rwlock); | |
5743 | ofproto->ofproto_class->group_dealloc(ofgroup); | |
5744 | } | |
5745 | ||
5746 | /* Implements OFPGC_DELETE. */ | |
5747 | static void | |
5748 | delete_group(struct ofproto *ofproto, uint32_t group_id) | |
5749 | { | |
5750 | struct ofgroup *ofgroup; | |
5751 | ||
5752 | ovs_rwlock_wrlock(&ofproto->groups_rwlock); | |
5753 | if (group_id == OFPG_ALL) { | |
5754 | for (;;) { | |
5755 | struct hmap_node *node = hmap_first(&ofproto->groups); | |
5756 | if (!node) { | |
5757 | break; | |
5758 | } | |
5759 | ofgroup = CONTAINER_OF(node, struct ofgroup, hmap_node); | |
5760 | delete_group__(ofproto, ofgroup); | |
5761 | /* Lock for each node separately, so that we will not jam the | |
5762 | * other threads for too long time. */ | |
5763 | ovs_rwlock_wrlock(&ofproto->groups_rwlock); | |
5764 | } | |
5765 | } else { | |
5766 | HMAP_FOR_EACH_IN_BUCKET (ofgroup, hmap_node, | |
5767 | hash_int(group_id, 0), &ofproto->groups) { | |
5768 | if (ofgroup->group_id == group_id) { | |
5769 | delete_group__(ofproto, ofgroup); | |
5770 | return; | |
5771 | } | |
5772 | } | |
5773 | } | |
5774 | ovs_rwlock_unlock(&ofproto->groups_rwlock); | |
5775 | } | |
5776 | ||
5777 | static enum ofperr | |
5778 | handle_group_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
5779 | { | |
5780 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); | |
5781 | struct ofputil_group_mod gm; | |
5782 | enum ofperr error; | |
5783 | ||
5784 | error = reject_slave_controller(ofconn); | |
5785 | if (error) { | |
5786 | return error; | |
5787 | } | |
5788 | ||
5789 | error = ofputil_decode_group_mod(oh, &gm); | |
5790 | if (error) { | |
5791 | return error; | |
5792 | } | |
5793 | ||
5794 | switch (gm.command) { | |
5795 | case OFPGC11_ADD: | |
5796 | return add_group(ofproto, &gm); | |
5797 | ||
5798 | case OFPGC11_MODIFY: | |
5799 | return modify_group(ofproto, &gm); | |
5800 | ||
5801 | case OFPGC11_DELETE: | |
5802 | delete_group(ofproto, gm.group_id); | |
5803 | return 0; | |
5804 | ||
5805 | default: | |
5806 | if (gm.command > OFPGC11_DELETE) { | |
5807 | VLOG_WARN_RL(&rl, "%s: Invalid group_mod command type %d", | |
5808 | ofproto->name, gm.command); | |
5809 | } | |
5810 | return OFPERR_OFPGMFC_BAD_COMMAND; | |
5811 | } | |
5812 | } | |
5813 | ||
6b83a3c5 SH |
5814 | enum ofproto_table_config |
5815 | ofproto_table_get_config(const struct ofproto *ofproto, uint8_t table_id) | |
6d328fa2 SH |
5816 | { |
5817 | unsigned int value; | |
5818 | atomic_read(&ofproto->tables[table_id].config, &value); | |
6b83a3c5 | 5819 | return (enum ofproto_table_config)value; |
6d328fa2 SH |
5820 | } |
5821 | ||
67761761 SH |
5822 | static enum ofperr |
5823 | table_mod(struct ofproto *ofproto, const struct ofputil_table_mod *tm) | |
5824 | { | |
6d328fa2 SH |
5825 | /* Only accept currently supported configurations */ |
5826 | if (tm->config & ~OFPTC11_TABLE_MISS_MASK) { | |
5827 | return OFPERR_OFPTMFC_BAD_CONFIG; | |
5828 | } | |
67761761 SH |
5829 | |
5830 | if (tm->table_id == OFPTT_ALL) { | |
5831 | int i; | |
5832 | for (i = 0; i < ofproto->n_tables; i++) { | |
5833 | atomic_store(&ofproto->tables[i].config, | |
5834 | (unsigned int)tm->config); | |
5835 | } | |
5836 | } else if (!check_table_id(ofproto, tm->table_id)) { | |
5837 | return OFPERR_OFPTMFC_BAD_TABLE; | |
5838 | } else { | |
5839 | atomic_store(&ofproto->tables[tm->table_id].config, | |
5840 | (unsigned int)tm->config); | |
5841 | } | |
5842 | ||
5843 | return 0; | |
5844 | } | |
5845 | ||
918f2b82 AZ |
5846 | static enum ofperr |
5847 | handle_table_mod(struct ofconn *ofconn, const struct ofp_header *oh) | |
5848 | { | |
67761761 | 5849 | struct ofproto *ofproto = ofconn_get_ofproto(ofconn); |
918f2b82 AZ |
5850 | struct ofputil_table_mod tm; |
5851 | enum ofperr error; | |
5852 | ||
5853 | error = reject_slave_controller(ofconn); | |
5854 | if (error) { | |
5855 | return error; | |
5856 | } | |
5857 | ||
5858 | error = ofputil_decode_table_mod(oh, &tm); | |
5859 | if (error) { | |
5860 | return error; | |
5861 | } | |
5862 | ||
67761761 | 5863 | return table_mod(ofproto, &tm); |
918f2b82 AZ |
5864 | } |
5865 | ||
777af88d AC |
5866 | static enum ofperr |
5867 | handle_bundle_control(struct ofconn *ofconn, const struct ofp_header *oh) | |
5868 | { | |
5869 | enum ofperr error; | |
5870 | struct ofputil_bundle_ctrl_msg bctrl; | |
5871 | struct ofpbuf *buf; | |
5872 | struct ofputil_bundle_ctrl_msg reply; | |
5873 | ||
5874 | error = ofputil_decode_bundle_ctrl(oh, &bctrl); | |
5875 | if (error) { | |
5876 | return error; | |
5877 | } | |
5878 | reply.flags = 0; | |
5879 | reply.bundle_id = bctrl.bundle_id; | |
5880 | ||
5881 | switch (bctrl.type) { | |
5882 | case OFPBCT_OPEN_REQUEST: | |
5883 | error = ofp_bundle_open(ofconn, bctrl.bundle_id, bctrl.flags); | |
5884 | reply.type = OFPBCT_OPEN_REPLY; | |
5885 | break; | |
5886 | case OFPBCT_CLOSE_REQUEST: | |
5887 | error = ofp_bundle_close(ofconn, bctrl.bundle_id, bctrl.flags); | |
5888 | reply.type = OFPBCT_CLOSE_REPLY;; | |
5889 | break; | |
5890 | case OFPBCT_COMMIT_REQUEST: | |
5891 | error = ofp_bundle_commit(ofconn, bctrl.bundle_id, bctrl.flags); | |
5892 | reply.type = OFPBCT_COMMIT_REPLY; | |
5893 | break; | |
5894 | case OFPBCT_DISCARD_REQUEST: | |
5895 | error = ofp_bundle_discard(ofconn, bctrl.bundle_id); | |
5896 | reply.type = OFPBCT_DISCARD_REPLY; | |
5897 | break; | |
5898 | ||
5899 | case OFPBCT_OPEN_REPLY: | |
5900 | case OFPBCT_CLOSE_REPLY: | |
5901 | case OFPBCT_COMMIT_REPLY: | |
5902 | case OFPBCT_DISCARD_REPLY: | |
5903 | return OFPERR_OFPBFC_BAD_TYPE; | |
5904 | break; | |
5905 | } | |
5906 | ||
5907 | if (!error) { | |
5908 | buf = ofputil_encode_bundle_ctrl_reply(oh, &reply); | |
5909 | ofconn_send_reply(ofconn, buf); | |
5910 | } | |
5911 | return error; | |
5912 | } | |
5913 | ||
5914 | ||
5915 | static enum ofperr | |
5916 | handle_bundle_add(struct ofconn *ofconn, const struct ofp_header *oh) | |
5917 | { | |
5918 | enum ofperr error; | |
5919 | struct ofputil_bundle_add_msg badd; | |
5920 | ||
5921 | error = ofputil_decode_bundle_add(oh, &badd); | |
5922 | if (error) { | |
5923 | return error; | |
5924 | } | |
5925 | ||
5926 | return ofp_bundle_add_message(ofconn, &badd); | |
5927 | } | |
5928 | ||
90bf1e07 | 5929 | static enum ofperr |
d1e2cf21 | 5930 | handle_openflow__(struct ofconn *ofconn, const struct ofpbuf *msg) |
15aaf599 | 5931 | OVS_EXCLUDED(ofproto_mutex) |
064af421 | 5932 | { |
1f317cb5 | 5933 | const struct ofp_header *oh = ofpbuf_data(msg); |
982697a4 | 5934 | enum ofptype type; |
90bf1e07 | 5935 | enum ofperr error; |
064af421 | 5936 | |
982697a4 | 5937 | error = ofptype_decode(&type, oh); |
d1e2cf21 BP |
5938 | if (error) { |
5939 | return error; | |
5940 | } | |
ff3c2c63 YT |
5941 | if (oh->version >= OFP13_VERSION && ofpmsg_is_stat_request(oh) |
5942 | && ofpmp_more(oh)) { | |
5943 | /* We have no buffer implementation for multipart requests. | |
5944 | * Report overflow for requests which consists of multiple | |
5945 | * messages. */ | |
5946 | return OFPERR_OFPBRC_MULTIPART_BUFFER_OVERFLOW; | |
5947 | } | |
064af421 | 5948 | |
982697a4 | 5949 | switch (type) { |
d1e2cf21 | 5950 | /* OpenFlow requests. */ |
982697a4 | 5951 | case OFPTYPE_ECHO_REQUEST: |
d1e2cf21 | 5952 | return handle_echo_request(ofconn, oh); |
064af421 | 5953 | |
982697a4 | 5954 | case OFPTYPE_FEATURES_REQUEST: |
d1e2cf21 | 5955 | return handle_features_request(ofconn, oh); |
064af421 | 5956 | |
982697a4 | 5957 | case OFPTYPE_GET_CONFIG_REQUEST: |
d1e2cf21 | 5958 | return handle_get_config_request(ofconn, oh); |
064af421 | 5959 | |
982697a4 BP |
5960 | case OFPTYPE_SET_CONFIG: |
5961 | return handle_set_config(ofconn, oh); | |
064af421 | 5962 | |
982697a4 BP |
5963 | case OFPTYPE_PACKET_OUT: |
5964 | return handle_packet_out(ofconn, oh); | |
064af421 | 5965 | |
982697a4 | 5966 | case OFPTYPE_PORT_MOD: |
d1e2cf21 | 5967 | return handle_port_mod(ofconn, oh); |
064af421 | 5968 | |
982697a4 | 5969 | case OFPTYPE_FLOW_MOD: |
2e4f5fcf | 5970 | return handle_flow_mod(ofconn, oh); |
064af421 | 5971 | |
7395c052 NZ |
5972 | case OFPTYPE_GROUP_MOD: |
5973 | return handle_group_mod(ofconn, oh); | |
5974 | ||
918f2b82 AZ |
5975 | case OFPTYPE_TABLE_MOD: |
5976 | return handle_table_mod(ofconn, oh); | |
5977 | ||
9cae45dc JR |
5978 | case OFPTYPE_METER_MOD: |
5979 | return handle_meter_mod(ofconn, oh); | |
5980 | ||
982697a4 | 5981 | case OFPTYPE_BARRIER_REQUEST: |
d1e2cf21 | 5982 | return handle_barrier_request(ofconn, oh); |
064af421 | 5983 | |
6ea4776b JR |
5984 | case OFPTYPE_ROLE_REQUEST: |
5985 | return handle_role_request(ofconn, oh); | |
5986 | ||
d1e2cf21 | 5987 | /* OpenFlow replies. */ |
982697a4 | 5988 | case OFPTYPE_ECHO_REPLY: |
d1e2cf21 | 5989 | return 0; |
246e61ea | 5990 | |
d1e2cf21 | 5991 | /* Nicira extension requests. */ |
982697a4 | 5992 | case OFPTYPE_FLOW_MOD_TABLE_ID: |
6c1491fb | 5993 | return handle_nxt_flow_mod_table_id(ofconn, oh); |
d1e2cf21 | 5994 | |
982697a4 | 5995 | case OFPTYPE_SET_FLOW_FORMAT: |
d1e2cf21 BP |
5996 | return handle_nxt_set_flow_format(ofconn, oh); |
5997 | ||
982697a4 | 5998 | case OFPTYPE_SET_PACKET_IN_FORMAT: |
54834960 EJ |
5999 | return handle_nxt_set_packet_in_format(ofconn, oh); |
6000 | ||
982697a4 | 6001 | case OFPTYPE_SET_CONTROLLER_ID: |
a7349929 BP |
6002 | return handle_nxt_set_controller_id(ofconn, oh); |
6003 | ||
982697a4 | 6004 | case OFPTYPE_FLOW_AGE: |
f27f2134 BP |
6005 | /* Nothing to do. */ |
6006 | return 0; | |
6007 | ||
982697a4 | 6008 | case OFPTYPE_FLOW_MONITOR_CANCEL: |
2b07c8b1 BP |
6009 | return handle_flow_monitor_cancel(ofconn, oh); |
6010 | ||
982697a4 | 6011 | case OFPTYPE_SET_ASYNC_CONFIG: |
80d5aefd BP |
6012 | return handle_nxt_set_async_config(ofconn, oh); |
6013 | ||
c423b3b3 AC |
6014 | case OFPTYPE_GET_ASYNC_REQUEST: |
6015 | return handle_nxt_get_async_request(ofconn, oh); | |
6016 | ||
349adfb2 | 6017 | /* Statistics requests. */ |
982697a4 BP |
6018 | case OFPTYPE_DESC_STATS_REQUEST: |
6019 | return handle_desc_stats_request(ofconn, oh); | |
6020 | ||
6021 | case OFPTYPE_FLOW_STATS_REQUEST: | |
6022 | return handle_flow_stats_request(ofconn, oh); | |
6023 | ||
6024 | case OFPTYPE_AGGREGATE_STATS_REQUEST: | |
6025 | return handle_aggregate_stats_request(ofconn, oh); | |
6026 | ||
6027 | case OFPTYPE_TABLE_STATS_REQUEST: | |
6028 | return handle_table_stats_request(ofconn, oh); | |
6029 | ||
6030 | case OFPTYPE_PORT_STATS_REQUEST: | |
6031 | return handle_port_stats_request(ofconn, oh); | |
6032 | ||
6033 | case OFPTYPE_QUEUE_STATS_REQUEST: | |
6034 | return handle_queue_stats_request(ofconn, oh); | |
6035 | ||
6036 | case OFPTYPE_PORT_DESC_STATS_REQUEST: | |
6037 | return handle_port_desc_stats_request(ofconn, oh); | |
6038 | ||
6039 | case OFPTYPE_FLOW_MONITOR_STATS_REQUEST: | |
6040 | return handle_flow_monitor_request(ofconn, oh); | |
6041 | ||
261bd854 BP |
6042 | case OFPTYPE_METER_STATS_REQUEST: |
6043 | case OFPTYPE_METER_CONFIG_STATS_REQUEST: | |
9cae45dc JR |
6044 | return handle_meter_request(ofconn, oh, type); |
6045 | ||
261bd854 | 6046 | case OFPTYPE_METER_FEATURES_STATS_REQUEST: |
9cae45dc JR |
6047 | return handle_meter_features_request(ofconn, oh); |
6048 | ||
261bd854 | 6049 | case OFPTYPE_GROUP_STATS_REQUEST: |
7395c052 NZ |
6050 | return handle_group_stats_request(ofconn, oh); |
6051 | ||
261bd854 | 6052 | case OFPTYPE_GROUP_DESC_STATS_REQUEST: |
7395c052 NZ |
6053 | return handle_group_desc_stats_request(ofconn, oh); |
6054 | ||
261bd854 | 6055 | case OFPTYPE_GROUP_FEATURES_STATS_REQUEST: |
7395c052 NZ |
6056 | return handle_group_features_stats_request(ofconn, oh); |
6057 | ||
7395c052 | 6058 | case OFPTYPE_QUEUE_GET_CONFIG_REQUEST: |
e8f9a7bb | 6059 | return handle_queue_get_config_request(ofconn, oh); |
2e1ae200 | 6060 | |
777af88d AC |
6061 | case OFPTYPE_BUNDLE_CONTROL: |
6062 | return handle_bundle_control(ofconn, oh); | |
6063 | ||
6064 | case OFPTYPE_BUNDLE_ADD_MESSAGE: | |
6065 | return handle_bundle_add(ofconn, oh); | |
6066 | ||
982697a4 BP |
6067 | case OFPTYPE_HELLO: |
6068 | case OFPTYPE_ERROR: | |
6069 | case OFPTYPE_FEATURES_REPLY: | |
6070 | case OFPTYPE_GET_CONFIG_REPLY: | |
6071 | case OFPTYPE_PACKET_IN: | |
6072 | case OFPTYPE_FLOW_REMOVED: | |
6073 | case OFPTYPE_PORT_STATUS: | |
6074 | case OFPTYPE_BARRIER_REPLY: | |
c545d38d | 6075 | case OFPTYPE_QUEUE_GET_CONFIG_REPLY: |
982697a4 BP |
6076 | case OFPTYPE_DESC_STATS_REPLY: |
6077 | case OFPTYPE_FLOW_STATS_REPLY: | |
6078 | case OFPTYPE_QUEUE_STATS_REPLY: | |
6079 | case OFPTYPE_PORT_STATS_REPLY: | |
6080 | case OFPTYPE_TABLE_STATS_REPLY: | |
6081 | case OFPTYPE_AGGREGATE_STATS_REPLY: | |
6082 | case OFPTYPE_PORT_DESC_STATS_REPLY: | |
6083 | case OFPTYPE_ROLE_REPLY: | |
6084 | case OFPTYPE_FLOW_MONITOR_PAUSED: | |
6085 | case OFPTYPE_FLOW_MONITOR_RESUMED: | |
6086 | case OFPTYPE_FLOW_MONITOR_STATS_REPLY: | |
2e1ae200 | 6087 | case OFPTYPE_GET_ASYNC_REPLY: |
261bd854 BP |
6088 | case OFPTYPE_GROUP_STATS_REPLY: |
6089 | case OFPTYPE_GROUP_DESC_STATS_REPLY: | |
6090 | case OFPTYPE_GROUP_FEATURES_STATS_REPLY: | |
6091 | case OFPTYPE_METER_STATS_REPLY: | |
6092 | case OFPTYPE_METER_CONFIG_STATS_REPLY: | |
6093 | case OFPTYPE_METER_FEATURES_STATS_REPLY: | |
e8f9a7bb | 6094 | case OFPTYPE_TABLE_FEATURES_STATS_REQUEST: |
261bd854 | 6095 | case OFPTYPE_TABLE_FEATURES_STATS_REPLY: |
252f3411 | 6096 | case OFPTYPE_ROLE_STATUS: |
064af421 | 6097 | default: |
76ec08e0 YT |
6098 | if (ofpmsg_is_stat_request(oh)) { |
6099 | return OFPERR_OFPBRC_BAD_STAT; | |
6100 | } else { | |
6101 | return OFPERR_OFPBRC_BAD_TYPE; | |
6102 | } | |
064af421 | 6103 | } |
d1e2cf21 | 6104 | } |
064af421 | 6105 | |
7ee20df1 | 6106 | static bool |
e03248b7 | 6107 | handle_openflow(struct ofconn *ofconn, const struct ofpbuf *ofp_msg) |
15aaf599 | 6108 | OVS_EXCLUDED(ofproto_mutex) |
d1e2cf21 BP |
6109 | { |
6110 | int error = handle_openflow__(ofconn, ofp_msg); | |
7ee20df1 | 6111 | if (error && error != OFPROTO_POSTPONE) { |
1f317cb5 | 6112 | ofconn_send_error(ofconn, ofpbuf_data(ofp_msg), error); |
064af421 | 6113 | } |
d1e2cf21 | 6114 | COVERAGE_INC(ofproto_recv_openflow); |
7ee20df1 BP |
6115 | return error != OFPROTO_POSTPONE; |
6116 | } | |
6117 | \f | |
6118 | /* Asynchronous operations. */ | |
6119 | ||
6120 | /* Creates and returns a new ofopgroup that is not associated with any | |
6121 | * OpenFlow connection. | |
6122 | * | |
6123 | * The caller should add operations to the returned group with | |
6124 | * ofoperation_create() and then submit it with ofopgroup_submit(). */ | |
6125 | static struct ofopgroup * | |
7024dffe | 6126 | ofopgroup_create_unattached(struct ofproto *ofproto) |
15aaf599 | 6127 | OVS_REQUIRES(ofproto_mutex) |
7ee20df1 BP |
6128 | { |
6129 | struct ofopgroup *group = xzalloc(sizeof *group); | |
6130 | group->ofproto = ofproto; | |
6131 | list_init(&group->ofproto_node); | |
6132 | list_init(&group->ops); | |
6133 | list_init(&group->ofconn_node); | |
6134 | return group; | |
6135 | } | |
6136 | ||
7024dffe BP |
6137 | /* Creates and returns a new ofopgroup for 'ofproto'. |
6138 | * | |
6139 | * If 'ofconn' is NULL, the new ofopgroup is not associated with any OpenFlow | |
6140 | * connection. The 'request' and 'buffer_id' arguments are ignored. | |
6141 | * | |
6142 | * If 'ofconn' is nonnull, then the new ofopgroup is associated with 'ofconn'. | |
6143 | * If the ofopgroup eventually fails, then the error reply will include | |
6144 | * 'request'. If the ofopgroup eventually succeeds, then the packet with | |
6145 | * buffer id 'buffer_id' on 'ofconn' will be sent by 'ofconn''s ofproto. | |
7ee20df1 BP |
6146 | * |
6147 | * The caller should add operations to the returned group with | |
6148 | * ofoperation_create() and then submit it with ofopgroup_submit(). */ | |
6149 | static struct ofopgroup * | |
7024dffe BP |
6150 | ofopgroup_create(struct ofproto *ofproto, struct ofconn *ofconn, |
6151 | const struct ofp_header *request, uint32_t buffer_id) | |
15aaf599 | 6152 | OVS_REQUIRES(ofproto_mutex) |
7ee20df1 | 6153 | { |
7024dffe BP |
6154 | struct ofopgroup *group = ofopgroup_create_unattached(ofproto); |
6155 | if (ofconn) { | |
6156 | size_t request_len = ntohs(request->length); | |
7ee20df1 | 6157 | |
cb22974d | 6158 | ovs_assert(ofconn_get_ofproto(ofconn) == ofproto); |
7ee20df1 | 6159 | |
7024dffe BP |
6160 | ofconn_add_opgroup(ofconn, &group->ofconn_node); |
6161 | group->ofconn = ofconn; | |
6162 | group->request = xmemdup(request, MIN(request_len, 64)); | |
6163 | group->buffer_id = buffer_id; | |
6164 | } | |
7ee20df1 BP |
6165 | return group; |
6166 | } | |
6167 | ||
6168 | /* Submits 'group' for processing. | |
6169 | * | |
6170 | * If 'group' contains no operations (e.g. none were ever added, or all of the | |
6171 | * ones that were added completed synchronously), then it is destroyed | |
6172 | * immediately. Otherwise it is added to the ofproto's list of pending | |
6173 | * groups. */ | |
6174 | static void | |
6175 | ofopgroup_submit(struct ofopgroup *group) | |
15aaf599 | 6176 | OVS_REQUIRES(ofproto_mutex) |
7ee20df1 | 6177 | { |
e615b0a3 BP |
6178 | if (!group->n_running) { |
6179 | ofopgroup_complete(group); | |
7ee20df1 BP |
6180 | } else { |
6181 | list_push_back(&group->ofproto->pending, &group->ofproto_node); | |
dd5616b3 | 6182 | group->ofproto->n_pending++; |
7ee20df1 BP |
6183 | } |
6184 | } | |
6185 | ||
6186 | static void | |
e615b0a3 | 6187 | ofopgroup_complete(struct ofopgroup *group) |
15aaf599 | 6188 | OVS_REQUIRES(ofproto_mutex) |
7ee20df1 | 6189 | { |
e615b0a3 | 6190 | struct ofproto *ofproto = group->ofproto; |
2b07c8b1 BP |
6191 | |
6192 | struct ofconn *abbrev_ofconn; | |
6193 | ovs_be32 abbrev_xid; | |
6194 | ||
e615b0a3 BP |
6195 | struct ofoperation *op, *next_op; |
6196 | int error; | |
6197 | ||
cb22974d | 6198 | ovs_assert(!group->n_running); |
e615b0a3 BP |
6199 | |
6200 | error = 0; | |
6201 | LIST_FOR_EACH (op, group_node, &group->ops) { | |
6202 | if (op->error) { | |
6203 | error = op->error; | |
6204 | break; | |
6205 | } | |
6206 | } | |
6207 | ||
6208 | if (!error && group->ofconn && group->buffer_id != UINT32_MAX) { | |
6209 | LIST_FOR_EACH (op, group_node, &group->ops) { | |
6210 | if (op->type != OFOPERATION_DELETE) { | |
6211 | struct ofpbuf *packet; | |
4e022ec0 | 6212 | ofp_port_t in_port; |
e615b0a3 BP |
6213 | |
6214 | error = ofconn_pktbuf_retrieve(group->ofconn, group->buffer_id, | |
6215 | &packet, &in_port); | |
6216 | if (packet) { | |
35412852 BP |
6217 | struct rule_execute *re; |
6218 | ||
cb22974d | 6219 | ovs_assert(!error); |
35412852 BP |
6220 | |
6221 | ofproto_rule_ref(op->rule); | |
6222 | ||
6223 | re = xmalloc(sizeof *re); | |
6224 | re->rule = op->rule; | |
6225 | re->in_port = in_port; | |
6226 | re->packet = packet; | |
6227 | ||
6228 | if (!guarded_list_push_back(&ofproto->rule_executes, | |
6229 | &re->list_node, 1024)) { | |
6230 | ofproto_rule_unref(op->rule); | |
6231 | ofpbuf_delete(re->packet); | |
6232 | free(re); | |
6233 | } | |
e615b0a3 BP |
6234 | } |
6235 | break; | |
6236 | } | |
6237 | } | |
6238 | } | |
6239 | ||
2b07c8b1 BP |
6240 | if (!error && !list_is_empty(&group->ofconn_node)) { |
6241 | abbrev_ofconn = group->ofconn; | |
6242 | abbrev_xid = group->request->xid; | |
6243 | } else { | |
6244 | abbrev_ofconn = NULL; | |
6245 | abbrev_xid = htonl(0); | |
6246 | } | |
e615b0a3 BP |
6247 | LIST_FOR_EACH_SAFE (op, next_op, group_node, &group->ops) { |
6248 | struct rule *rule = op->rule; | |
2b07c8b1 | 6249 | |
644e2a7c BP |
6250 | /* We generally want to report the change to active OpenFlow flow |
6251 | monitors (e.g. NXST_FLOW_MONITOR). There are three exceptions: | |
6252 | ||
6253 | - The operation failed. | |
6254 | ||
6255 | - The affected rule is not visible to controllers. | |
6256 | ||
6257 | - The operation's only effect was to update rule->modified. */ | |
6258 | if (!(op->error | |
6259 | || ofproto_rule_is_hidden(rule) | |
6260 | || (op->type == OFOPERATION_MODIFY | |
6f00e29b | 6261 | && op->actions |
644e2a7c | 6262 | && rule->flow_cookie == op->flow_cookie))) { |
2b07c8b1 BP |
6263 | /* Check that we can just cast from ofoperation_type to |
6264 | * nx_flow_update_event. */ | |
b277c7cc BP |
6265 | enum nx_flow_update_event event_type; |
6266 | ||
6267 | switch (op->type) { | |
6268 | case OFOPERATION_ADD: | |
6269 | case OFOPERATION_REPLACE: | |
6270 | event_type = NXFME_ADDED; | |
6271 | break; | |
6272 | ||
6273 | case OFOPERATION_DELETE: | |
6274 | event_type = NXFME_DELETED; | |
6275 | break; | |
6276 | ||
6277 | case OFOPERATION_MODIFY: | |
6278 | event_type = NXFME_MODIFIED; | |
6279 | break; | |
6280 | ||
6281 | default: | |
428b2edd | 6282 | OVS_NOT_REACHED(); |
b277c7cc BP |
6283 | } |
6284 | ||
6285 | ofmonitor_report(ofproto->connmgr, rule, event_type, | |
2b07c8b1 BP |
6286 | op->reason, abbrev_ofconn, abbrev_xid); |
6287 | } | |
6288 | ||
e615b0a3 BP |
6289 | rule->pending = NULL; |
6290 | ||
6291 | switch (op->type) { | |
6292 | case OFOPERATION_ADD: | |
6293 | if (!op->error) { | |
5cb7a798 BP |
6294 | uint16_t vid_mask; |
6295 | ||
5cb7a798 BP |
6296 | vid_mask = minimask_get_vid_mask(&rule->cr.match.mask); |
6297 | if (vid_mask == VLAN_VID_MASK) { | |
e615b0a3 | 6298 | if (ofproto->vlan_bitmap) { |
5cb7a798 | 6299 | uint16_t vid = miniflow_get_vid(&rule->cr.match.flow); |
e615b0a3 BP |
6300 | if (!bitmap_is_set(ofproto->vlan_bitmap, vid)) { |
6301 | bitmap_set1(ofproto->vlan_bitmap, vid); | |
6302 | ofproto->vlans_changed = true; | |
6303 | } | |
6304 | } else { | |
6305 | ofproto->vlans_changed = true; | |
6306 | } | |
6307 | } | |
6308 | } else { | |
b277c7cc | 6309 | oftable_remove_rule(rule); |
a2143702 | 6310 | ofproto_rule_unref(rule); |
e615b0a3 BP |
6311 | } |
6312 | break; | |
6313 | ||
6314 | case OFOPERATION_DELETE: | |
cb22974d | 6315 | ovs_assert(!op->error); |
a2143702 | 6316 | ofproto_rule_unref(rule); |
e615b0a3 BP |
6317 | op->rule = NULL; |
6318 | break; | |
6319 | ||
6320 | case OFOPERATION_MODIFY: | |
b277c7cc | 6321 | case OFOPERATION_REPLACE: |
e615b0a3 | 6322 | if (!op->error) { |
b277c7cc BP |
6323 | long long int now = time_msec(); |
6324 | ||
b90d6ee5 | 6325 | ovs_mutex_lock(&rule->mutex); |
b277c7cc BP |
6326 | rule->modified = now; |
6327 | if (op->type == OFOPERATION_REPLACE) { | |
dc437090 | 6328 | rule->created = now; |
b277c7cc | 6329 | } |
b90d6ee5 | 6330 | ovs_mutex_unlock(&rule->mutex); |
e615b0a3 | 6331 | } else { |
98eaac36 | 6332 | ofproto_rule_change_cookie(ofproto, rule, op->flow_cookie); |
d10976b7 | 6333 | ovs_mutex_lock(&rule->mutex); |
b277c7cc BP |
6334 | rule->idle_timeout = op->idle_timeout; |
6335 | rule->hard_timeout = op->hard_timeout; | |
d10976b7 | 6336 | ovs_mutex_unlock(&rule->mutex); |
6f00e29b | 6337 | if (op->actions) { |
dc723c44 | 6338 | const struct rule_actions *old_actions; |
884e1dc4 | 6339 | |
c7c9a7c8 | 6340 | ovs_mutex_lock(&rule->mutex); |
06a0f3e2 BP |
6341 | old_actions = rule_get_actions(rule); |
6342 | ovsrcu_set(&rule->actions, op->actions); | |
c7c9a7c8 | 6343 | ovs_mutex_unlock(&rule->mutex); |
884e1dc4 | 6344 | |
6f00e29b | 6345 | op->actions = NULL; |
06a0f3e2 | 6346 | rule_actions_destroy(old_actions); |
08043761 | 6347 | } |
3f517bcd | 6348 | rule->flags = op->flags; |
e615b0a3 BP |
6349 | } |
6350 | break; | |
6351 | ||
6352 | default: | |
428b2edd | 6353 | OVS_NOT_REACHED(); |
e615b0a3 BP |
6354 | } |
6355 | ||
6356 | ofoperation_destroy(op); | |
6357 | } | |
6358 | ||
2b07c8b1 BP |
6359 | ofmonitor_flush(ofproto->connmgr); |
6360 | ||
7ee20df1 | 6361 | if (!list_is_empty(&group->ofproto_node)) { |
cb22974d | 6362 | ovs_assert(ofproto->n_pending > 0); |
e615b0a3 | 6363 | ofproto->n_pending--; |
7ee20df1 BP |
6364 | list_remove(&group->ofproto_node); |
6365 | } | |
6366 | if (!list_is_empty(&group->ofconn_node)) { | |
6367 | list_remove(&group->ofconn_node); | |
e615b0a3 BP |
6368 | if (error) { |
6369 | ofconn_send_error(group->ofconn, group->request, error); | |
7ee20df1 | 6370 | } |
e615b0a3 | 6371 | connmgr_retry(ofproto->connmgr); |
7ee20df1 BP |
6372 | } |
6373 | free(group->request); | |
6374 | free(group); | |
6375 | } | |
6376 | ||
6377 | /* Initiates a new operation on 'rule', of the specified 'type', within | |
a7d94793 BP |
6378 | * 'group'. Prior to calling, 'rule' must not have any pending operation. |
6379 | * | |
2b07c8b1 BP |
6380 | * For a 'type' of OFOPERATION_DELETE, 'reason' should specify the reason that |
6381 | * the flow is being deleted. For other 'type's, 'reason' is ignored (use 0). | |
6382 | * | |
a7d94793 BP |
6383 | * Returns the newly created ofoperation (which is also available as |
6384 | * rule->pending). */ | |
6385 | static struct ofoperation * | |
7ee20df1 | 6386 | ofoperation_create(struct ofopgroup *group, struct rule *rule, |
2b07c8b1 BP |
6387 | enum ofoperation_type type, |
6388 | enum ofp_flow_removed_reason reason) | |
15aaf599 | 6389 | OVS_REQUIRES(ofproto_mutex) |
7ee20df1 | 6390 | { |
a5b8d268 | 6391 | struct ofproto *ofproto = group->ofproto; |
7ee20df1 BP |
6392 | struct ofoperation *op; |
6393 | ||
cb22974d | 6394 | ovs_assert(!rule->pending); |
7ee20df1 BP |
6395 | |
6396 | op = rule->pending = xzalloc(sizeof *op); | |
6397 | op->group = group; | |
6398 | list_push_back(&group->ops, &op->group_node); | |
6399 | op->rule = rule; | |
6400 | op->type = type; | |
2b07c8b1 | 6401 | op->reason = reason; |
7ee20df1 | 6402 | op->flow_cookie = rule->flow_cookie; |
d10976b7 | 6403 | ovs_mutex_lock(&rule->mutex); |
b277c7cc BP |
6404 | op->idle_timeout = rule->idle_timeout; |
6405 | op->hard_timeout = rule->hard_timeout; | |
d10976b7 | 6406 | ovs_mutex_unlock(&rule->mutex); |
3f517bcd | 6407 | op->flags = rule->flags; |
7ee20df1 | 6408 | |
e615b0a3 BP |
6409 | group->n_running++; |
6410 | ||
7ee20df1 | 6411 | if (type == OFOPERATION_DELETE) { |
a5b8d268 | 6412 | hmap_insert(&ofproto->deletions, &op->hmap_node, |
7ee20df1 BP |
6413 | cls_rule_hash(&rule->cr, rule->table_id)); |
6414 | } | |
a7d94793 BP |
6415 | |
6416 | return op; | |
7ee20df1 BP |
6417 | } |
6418 | ||
6419 | static void | |
6420 | ofoperation_destroy(struct ofoperation *op) | |
15aaf599 | 6421 | OVS_REQUIRES(ofproto_mutex) |
7ee20df1 BP |
6422 | { |
6423 | struct ofopgroup *group = op->group; | |
6424 | ||
6425 | if (op->rule) { | |
6426 | op->rule->pending = NULL; | |
6427 | } | |
6428 | if (op->type == OFOPERATION_DELETE) { | |
6429 | hmap_remove(&group->ofproto->deletions, &op->hmap_node); | |
6430 | } | |
6431 | list_remove(&op->group_node); | |
06a0f3e2 | 6432 | rule_actions_destroy(op->actions); |
7ee20df1 | 6433 | free(op); |
7ee20df1 BP |
6434 | } |
6435 | ||
6436 | /* Indicates that 'op' completed with status 'error', which is either 0 to | |
90bf1e07 | 6437 | * indicate success or an OpenFlow error code on failure. |
7ee20df1 | 6438 | * |
a6a62132 | 6439 | * If 'error' is 0, indicating success, the operation will be committed |
b277c7cc | 6440 | * permanently to the flow table. |
a6a62132 BP |
6441 | * |
6442 | * If 'error' is nonzero, then generally the operation will be rolled back: | |
6443 | * | |
6444 | * - If 'op' is an "add flow" operation, ofproto removes the new rule or | |
6445 | * restores the original rule. The caller must have uninitialized any | |
6446 | * derived state in the new rule, as in step 5 of in the "Life Cycle" in | |
6447 | * ofproto/ofproto-provider.h. ofoperation_complete() performs steps 6 and | |
6448 | * and 7 for the new rule, calling its ->rule_dealloc() function. | |
6449 | * | |
6450 | * - If 'op' is a "modify flow" operation, ofproto restores the original | |
6451 | * actions. | |
6452 | * | |
6453 | * - 'op' must not be a "delete flow" operation. Removing a rule is not | |
6454 | * allowed to fail. It must always succeed. | |
7ee20df1 | 6455 | * |
5bee6e26 JP |
6456 | * Please see the large comment in ofproto/ofproto-provider.h titled |
6457 | * "Asynchronous Operation Support" for more information. */ | |
7ee20df1 | 6458 | void |
90bf1e07 | 6459 | ofoperation_complete(struct ofoperation *op, enum ofperr error) |
7ee20df1 BP |
6460 | { |
6461 | struct ofopgroup *group = op->group; | |
7ee20df1 | 6462 | |
cb22974d BP |
6463 | ovs_assert(group->n_running > 0); |
6464 | ovs_assert(!error || op->type != OFOPERATION_DELETE); | |
9075907c | 6465 | |
e615b0a3 BP |
6466 | op->error = error; |
6467 | if (!--group->n_running && !list_is_empty(&group->ofproto_node)) { | |
15aaf599 BP |
6468 | /* This function can be called from ->rule_construct(), in which case |
6469 | * ofproto_mutex is held, or it can be called from ->run(), in which | |
6470 | * case ofproto_mutex is not held. But only in the latter case can we | |
6471 | * arrive here, so we can safely take ofproto_mutex now. */ | |
6472 | ovs_mutex_lock(&ofproto_mutex); | |
6473 | ovs_assert(op->rule->pending == op); | |
e615b0a3 | 6474 | ofopgroup_complete(group); |
15aaf599 | 6475 | ovs_mutex_unlock(&ofproto_mutex); |
7ee20df1 | 6476 | } |
7ee20df1 | 6477 | } |
064af421 | 6478 | \f |
064af421 | 6479 | static uint64_t |
fa60c019 | 6480 | pick_datapath_id(const struct ofproto *ofproto) |
064af421 | 6481 | { |
fa60c019 | 6482 | const struct ofport *port; |
064af421 | 6483 | |
abe529af | 6484 | port = ofproto_get_port(ofproto, OFPP_LOCAL); |
fa60c019 BP |
6485 | if (port) { |
6486 | uint8_t ea[ETH_ADDR_LEN]; | |
6487 | int error; | |
6488 | ||
6489 | error = netdev_get_etheraddr(port->netdev, ea); | |
064af421 BP |
6490 | if (!error) { |
6491 | return eth_addr_to_uint64(ea); | |
6492 | } | |
fbfa2911 BP |
6493 | VLOG_WARN("%s: could not get MAC address for %s (%s)", |
6494 | ofproto->name, netdev_get_name(port->netdev), | |
10a89ef0 | 6495 | ovs_strerror(error)); |
064af421 | 6496 | } |
fa60c019 | 6497 | return ofproto->fallback_dpid; |
064af421 BP |
6498 | } |
6499 | ||
6500 | static uint64_t | |
6501 | pick_fallback_dpid(void) | |
6502 | { | |
6503 | uint8_t ea[ETH_ADDR_LEN]; | |
70150daf | 6504 | eth_addr_nicira_random(ea); |
064af421 BP |
6505 | return eth_addr_to_uint64(ea); |
6506 | } | |
6507 | \f | |
254750ce BP |
6508 | /* Table overflow policy. */ |
6509 | ||
ad3efdcb EJ |
6510 | /* Chooses and updates 'rulep' with a rule to evict from 'table'. Sets 'rulep' |
6511 | * to NULL if the table is not configured to evict rules or if the table | |
6512 | * contains no evictable rules. (Rules with a readlock on their evict rwlock, | |
6513 | * or with no timeouts are not evictable.) */ | |
6514 | static bool | |
6515 | choose_rule_to_evict(struct oftable *table, struct rule **rulep) | |
15aaf599 | 6516 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
6517 | { |
6518 | struct eviction_group *evg; | |
6519 | ||
ad3efdcb | 6520 | *rulep = NULL; |
254750ce | 6521 | if (!table->eviction_fields) { |
ad3efdcb | 6522 | return false; |
254750ce BP |
6523 | } |
6524 | ||
6525 | /* In the common case, the outer and inner loops here will each be entered | |
6526 | * exactly once: | |
6527 | * | |
6528 | * - The inner loop normally "return"s in its first iteration. If the | |
6529 | * eviction group has any evictable rules, then it always returns in | |
6530 | * some iteration. | |
6531 | * | |
6532 | * - The outer loop only iterates more than once if the largest eviction | |
6533 | * group has no evictable rules. | |
6534 | * | |
6535 | * - The outer loop can exit only if table's 'max_flows' is all filled up | |
afe2143d | 6536 | * by unevictable rules. */ |
254750ce BP |
6537 | HEAP_FOR_EACH (evg, size_node, &table->eviction_groups_by_size) { |
6538 | struct rule *rule; | |
6539 | ||
6540 | HEAP_FOR_EACH (rule, evg_node, &evg->rules) { | |
15aaf599 BP |
6541 | *rulep = rule; |
6542 | return true; | |
254750ce BP |
6543 | } |
6544 | } | |
6545 | ||
ad3efdcb | 6546 | return false; |
254750ce BP |
6547 | } |
6548 | ||
6549 | /* Searches 'ofproto' for tables that have more flows than their configured | |
6550 | * maximum and that have flow eviction enabled, and evicts as many flows as | |
6551 | * necessary and currently feasible from them. | |
6552 | * | |
6553 | * This triggers only when an OpenFlow table has N flows in it and then the | |
6554 | * client configures a maximum number of flows less than N. */ | |
6555 | static void | |
6556 | ofproto_evict(struct ofproto *ofproto) | |
6557 | { | |
254750ce BP |
6558 | struct oftable *table; |
6559 | ||
15aaf599 | 6560 | ovs_mutex_lock(&ofproto_mutex); |
254750ce | 6561 | OFPROTO_FOR_EACH_TABLE (table, ofproto) { |
2e31a9b8 | 6562 | evict_rules_from_table(ofproto, table, 0); |
254750ce | 6563 | } |
15aaf599 | 6564 | ovs_mutex_unlock(&ofproto_mutex); |
254750ce BP |
6565 | } |
6566 | \f | |
6567 | /* Eviction groups. */ | |
6568 | ||
6569 | /* Returns the priority to use for an eviction_group that contains 'n_rules' | |
6570 | * rules. The priority contains low-order random bits to ensure that eviction | |
6571 | * groups with the same number of rules are prioritized randomly. */ | |
6572 | static uint32_t | |
6573 | eviction_group_priority(size_t n_rules) | |
6574 | { | |
6575 | uint16_t size = MIN(UINT16_MAX, n_rules); | |
6576 | return (size << 16) | random_uint16(); | |
6577 | } | |
6578 | ||
6579 | /* Updates 'evg', an eviction_group within 'table', following a change that | |
6580 | * adds or removes rules in 'evg'. */ | |
6581 | static void | |
6582 | eviction_group_resized(struct oftable *table, struct eviction_group *evg) | |
15aaf599 | 6583 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
6584 | { |
6585 | heap_change(&table->eviction_groups_by_size, &evg->size_node, | |
6586 | eviction_group_priority(heap_count(&evg->rules))); | |
6587 | } | |
6588 | ||
6589 | /* Destroys 'evg', an eviction_group within 'table': | |
6590 | * | |
6591 | * - Removes all the rules, if any, from 'evg'. (It doesn't destroy the | |
6592 | * rules themselves, just removes them from the eviction group.) | |
6593 | * | |
6594 | * - Removes 'evg' from 'table'. | |
6595 | * | |
6596 | * - Frees 'evg'. */ | |
6597 | static void | |
6598 | eviction_group_destroy(struct oftable *table, struct eviction_group *evg) | |
15aaf599 | 6599 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
6600 | { |
6601 | while (!heap_is_empty(&evg->rules)) { | |
6602 | struct rule *rule; | |
6603 | ||
6604 | rule = CONTAINER_OF(heap_pop(&evg->rules), struct rule, evg_node); | |
6605 | rule->eviction_group = NULL; | |
6606 | } | |
6607 | hmap_remove(&table->eviction_groups_by_id, &evg->id_node); | |
6608 | heap_remove(&table->eviction_groups_by_size, &evg->size_node); | |
6609 | heap_destroy(&evg->rules); | |
6610 | free(evg); | |
6611 | } | |
6612 | ||
6613 | /* Removes 'rule' from its eviction group, if any. */ | |
6614 | static void | |
6615 | eviction_group_remove_rule(struct rule *rule) | |
15aaf599 | 6616 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
6617 | { |
6618 | if (rule->eviction_group) { | |
6619 | struct oftable *table = &rule->ofproto->tables[rule->table_id]; | |
6620 | struct eviction_group *evg = rule->eviction_group; | |
6621 | ||
6622 | rule->eviction_group = NULL; | |
6623 | heap_remove(&evg->rules, &rule->evg_node); | |
6624 | if (heap_is_empty(&evg->rules)) { | |
6625 | eviction_group_destroy(table, evg); | |
6626 | } else { | |
6627 | eviction_group_resized(table, evg); | |
6628 | } | |
6629 | } | |
6630 | } | |
6631 | ||
6632 | /* Hashes the 'rule''s values for the eviction_fields of 'rule''s table, and | |
6633 | * returns the hash value. */ | |
6634 | static uint32_t | |
6635 | eviction_group_hash_rule(struct rule *rule) | |
15aaf599 | 6636 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
6637 | { |
6638 | struct oftable *table = &rule->ofproto->tables[rule->table_id]; | |
6639 | const struct mf_subfield *sf; | |
5cb7a798 | 6640 | struct flow flow; |
254750ce BP |
6641 | uint32_t hash; |
6642 | ||
6643 | hash = table->eviction_group_id_basis; | |
5cb7a798 | 6644 | miniflow_expand(&rule->cr.match.flow, &flow); |
254750ce BP |
6645 | for (sf = table->eviction_fields; |
6646 | sf < &table->eviction_fields[table->n_eviction_fields]; | |
6647 | sf++) | |
6648 | { | |
5cb7a798 | 6649 | if (mf_are_prereqs_ok(sf->field, &flow)) { |
254750ce BP |
6650 | union mf_value value; |
6651 | ||
5cb7a798 | 6652 | mf_get_value(sf->field, &flow, &value); |
254750ce BP |
6653 | if (sf->ofs) { |
6654 | bitwise_zero(&value, sf->field->n_bytes, 0, sf->ofs); | |
6655 | } | |
6656 | if (sf->ofs + sf->n_bits < sf->field->n_bytes * 8) { | |
6657 | unsigned int start = sf->ofs + sf->n_bits; | |
6658 | bitwise_zero(&value, sf->field->n_bytes, start, | |
6659 | sf->field->n_bytes * 8 - start); | |
6660 | } | |
6661 | hash = hash_bytes(&value, sf->field->n_bytes, hash); | |
6662 | } else { | |
6663 | hash = hash_int(hash, 0); | |
6664 | } | |
6665 | } | |
6666 | ||
6667 | return hash; | |
6668 | } | |
6669 | ||
6670 | /* Returns an eviction group within 'table' with the given 'id', creating one | |
6671 | * if necessary. */ | |
6672 | static struct eviction_group * | |
6673 | eviction_group_find(struct oftable *table, uint32_t id) | |
15aaf599 | 6674 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
6675 | { |
6676 | struct eviction_group *evg; | |
6677 | ||
6678 | HMAP_FOR_EACH_WITH_HASH (evg, id_node, id, &table->eviction_groups_by_id) { | |
6679 | return evg; | |
6680 | } | |
6681 | ||
6682 | evg = xmalloc(sizeof *evg); | |
6683 | hmap_insert(&table->eviction_groups_by_id, &evg->id_node, id); | |
6684 | heap_insert(&table->eviction_groups_by_size, &evg->size_node, | |
6685 | eviction_group_priority(0)); | |
6686 | heap_init(&evg->rules); | |
6687 | ||
6688 | return evg; | |
6689 | } | |
6690 | ||
6691 | /* Returns an eviction priority for 'rule'. The return value should be | |
6692 | * interpreted so that higher priorities make a rule more attractive candidates | |
dc437090 JR |
6693 | * for eviction. |
6694 | * Called only if have a timeout. */ | |
254750ce | 6695 | static uint32_t |
dc437090 | 6696 | rule_eviction_priority(struct ofproto *ofproto, struct rule *rule) |
15aaf599 | 6697 | OVS_REQUIRES(ofproto_mutex) |
254750ce | 6698 | { |
dc437090 JR |
6699 | long long int expiration = LLONG_MAX; |
6700 | long long int modified; | |
254750ce BP |
6701 | uint32_t expiration_offset; |
6702 | ||
dc437090 | 6703 | /* 'modified' needs protection even when we hold 'ofproto_mutex'. */ |
d10976b7 | 6704 | ovs_mutex_lock(&rule->mutex); |
dc437090 | 6705 | modified = rule->modified; |
d10976b7 | 6706 | ovs_mutex_unlock(&rule->mutex); |
dc437090 JR |
6707 | |
6708 | if (rule->hard_timeout) { | |
6709 | expiration = modified + rule->hard_timeout * 1000; | |
6710 | } | |
6711 | if (rule->idle_timeout) { | |
6712 | uint64_t packets, bytes; | |
6713 | long long int used; | |
6714 | long long int idle_expiration; | |
6715 | ||
6716 | ofproto->ofproto_class->rule_get_stats(rule, &packets, &bytes, &used); | |
6717 | idle_expiration = used + rule->idle_timeout * 1000; | |
6718 | expiration = MIN(expiration, idle_expiration); | |
6719 | } | |
6720 | ||
254750ce BP |
6721 | if (expiration == LLONG_MAX) { |
6722 | return 0; | |
6723 | } | |
6724 | ||
6725 | /* Calculate the time of expiration as a number of (approximate) seconds | |
6726 | * after program startup. | |
6727 | * | |
6728 | * This should work OK for program runs that last UINT32_MAX seconds or | |
6729 | * less. Therefore, please restart OVS at least once every 136 years. */ | |
6730 | expiration_offset = (expiration >> 10) - (time_boot_msec() >> 10); | |
6731 | ||
6732 | /* Invert the expiration offset because we're using a max-heap. */ | |
6733 | return UINT32_MAX - expiration_offset; | |
6734 | } | |
6735 | ||
6736 | /* Adds 'rule' to an appropriate eviction group for its oftable's | |
6737 | * configuration. Does nothing if 'rule''s oftable doesn't have eviction | |
6738 | * enabled, or if 'rule' is a permanent rule (one that will never expire on its | |
6739 | * own). | |
6740 | * | |
6741 | * The caller must ensure that 'rule' is not already in an eviction group. */ | |
6742 | static void | |
6743 | eviction_group_add_rule(struct rule *rule) | |
15aaf599 | 6744 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
6745 | { |
6746 | struct ofproto *ofproto = rule->ofproto; | |
6747 | struct oftable *table = &ofproto->tables[rule->table_id]; | |
a3779dbc | 6748 | bool has_timeout; |
254750ce | 6749 | |
dc437090 JR |
6750 | /* Timeouts may be modified only when holding 'ofproto_mutex'. We have it |
6751 | * so no additional protection is needed. */ | |
a3779dbc | 6752 | has_timeout = rule->hard_timeout || rule->idle_timeout; |
a3779dbc EJ |
6753 | |
6754 | if (table->eviction_fields && has_timeout) { | |
254750ce BP |
6755 | struct eviction_group *evg; |
6756 | ||
6757 | evg = eviction_group_find(table, eviction_group_hash_rule(rule)); | |
6758 | ||
6759 | rule->eviction_group = evg; | |
6760 | heap_insert(&evg->rules, &rule->evg_node, | |
dc437090 | 6761 | rule_eviction_priority(ofproto, rule)); |
254750ce BP |
6762 | eviction_group_resized(table, evg); |
6763 | } | |
6764 | } | |
6765 | \f | |
d0918789 BP |
6766 | /* oftables. */ |
6767 | ||
6768 | /* Initializes 'table'. */ | |
6769 | static void | |
6770 | oftable_init(struct oftable *table) | |
6771 | { | |
5c67e4af | 6772 | memset(table, 0, sizeof *table); |
476f36e8 | 6773 | classifier_init(&table->cls, flow_segment_u32s); |
ec1c5c7e | 6774 | table->max_flows = UINT_MAX; |
6b83a3c5 | 6775 | atomic_init(&table->config, (unsigned int)OFPROTO_TABLE_MISS_DEFAULT); |
d0918789 BP |
6776 | } |
6777 | ||
254750ce | 6778 | /* Destroys 'table', including its classifier and eviction groups. |
d0918789 BP |
6779 | * |
6780 | * The caller is responsible for freeing 'table' itself. */ | |
6781 | static void | |
6782 | oftable_destroy(struct oftable *table) | |
6783 | { | |
06f81620 | 6784 | fat_rwlock_rdlock(&table->cls.rwlock); |
cb22974d | 6785 | ovs_assert(classifier_is_empty(&table->cls)); |
06f81620 | 6786 | fat_rwlock_unlock(&table->cls.rwlock); |
254750ce | 6787 | oftable_disable_eviction(table); |
d0918789 | 6788 | classifier_destroy(&table->cls); |
254750ce BP |
6789 | free(table->name); |
6790 | } | |
6791 | ||
6792 | /* Changes the name of 'table' to 'name'. If 'name' is NULL or the empty | |
6793 | * string, then 'table' will use its default name. | |
6794 | * | |
6795 | * This only affects the name exposed for a table exposed through the OpenFlow | |
6796 | * OFPST_TABLE (as printed by "ovs-ofctl dump-tables"). */ | |
6797 | static void | |
6798 | oftable_set_name(struct oftable *table, const char *name) | |
6799 | { | |
6800 | if (name && name[0]) { | |
6801 | int len = strnlen(name, OFP_MAX_TABLE_NAME_LEN); | |
6802 | if (!table->name || strncmp(name, table->name, len)) { | |
6803 | free(table->name); | |
6804 | table->name = xmemdup0(name, len); | |
6805 | } | |
6806 | } else { | |
6807 | free(table->name); | |
6808 | table->name = NULL; | |
6809 | } | |
6810 | } | |
6811 | ||
6812 | /* oftables support a choice of two policies when adding a rule would cause the | |
6813 | * number of flows in the table to exceed the configured maximum number: either | |
6814 | * they can refuse to add the new flow or they can evict some existing flow. | |
6815 | * This function configures the former policy on 'table'. */ | |
6816 | static void | |
6817 | oftable_disable_eviction(struct oftable *table) | |
15aaf599 | 6818 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
6819 | { |
6820 | if (table->eviction_fields) { | |
6821 | struct eviction_group *evg, *next; | |
6822 | ||
6823 | HMAP_FOR_EACH_SAFE (evg, next, id_node, | |
6824 | &table->eviction_groups_by_id) { | |
6825 | eviction_group_destroy(table, evg); | |
6826 | } | |
6827 | hmap_destroy(&table->eviction_groups_by_id); | |
6828 | heap_destroy(&table->eviction_groups_by_size); | |
6829 | ||
6830 | free(table->eviction_fields); | |
6831 | table->eviction_fields = NULL; | |
6832 | table->n_eviction_fields = 0; | |
6833 | } | |
6834 | } | |
6835 | ||
6836 | /* oftables support a choice of two policies when adding a rule would cause the | |
6837 | * number of flows in the table to exceed the configured maximum number: either | |
6838 | * they can refuse to add the new flow or they can evict some existing flow. | |
6839 | * This function configures the latter policy on 'table', with fairness based | |
6840 | * on the values of the 'n_fields' fields specified in 'fields'. (Specifying | |
6841 | * 'n_fields' as 0 disables fairness.) */ | |
6842 | static void | |
6843 | oftable_enable_eviction(struct oftable *table, | |
6844 | const struct mf_subfield *fields, size_t n_fields) | |
15aaf599 | 6845 | OVS_REQUIRES(ofproto_mutex) |
254750ce BP |
6846 | { |
6847 | struct cls_cursor cursor; | |
6848 | struct rule *rule; | |
6849 | ||
6850 | if (table->eviction_fields | |
6851 | && n_fields == table->n_eviction_fields | |
6852 | && (!n_fields | |
6853 | || !memcmp(fields, table->eviction_fields, | |
6854 | n_fields * sizeof *fields))) { | |
6855 | /* No change. */ | |
6856 | return; | |
6857 | } | |
6858 | ||
6859 | oftable_disable_eviction(table); | |
6860 | ||
6861 | table->n_eviction_fields = n_fields; | |
6862 | table->eviction_fields = xmemdup(fields, n_fields * sizeof *fields); | |
6863 | ||
6864 | table->eviction_group_id_basis = random_uint32(); | |
6865 | hmap_init(&table->eviction_groups_by_id); | |
6866 | heap_init(&table->eviction_groups_by_size); | |
6867 | ||
06f81620 | 6868 | fat_rwlock_rdlock(&table->cls.rwlock); |
254750ce BP |
6869 | cls_cursor_init(&cursor, &table->cls, NULL); |
6870 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { | |
6871 | eviction_group_add_rule(rule); | |
6872 | } | |
06f81620 | 6873 | fat_rwlock_unlock(&table->cls.rwlock); |
d0918789 BP |
6874 | } |
6875 | ||
6876 | /* Removes 'rule' from the oftable that contains it. */ | |
6877 | static void | |
8b81d1ef | 6878 | oftable_remove_rule__(struct ofproto *ofproto, struct rule *rule) |
15aaf599 | 6879 | OVS_REQUIRES(ofproto_mutex) |
d0918789 | 6880 | { |
8b81d1ef BP |
6881 | struct classifier *cls = &ofproto->tables[rule->table_id].cls; |
6882 | ||
06f81620 | 6883 | fat_rwlock_wrlock(&cls->rwlock); |
49a0e0eb | 6884 | classifier_remove(cls, CONST_CAST(struct cls_rule *, &rule->cr)); |
06f81620 | 6885 | fat_rwlock_unlock(&cls->rwlock); |
2c916028 | 6886 | |
98eaac36 | 6887 | cookies_remove(ofproto, rule); |
2c916028 | 6888 | |
254750ce | 6889 | eviction_group_remove_rule(rule); |
e503cc19 SH |
6890 | if (!list_is_empty(&rule->expirable)) { |
6891 | list_remove(&rule->expirable); | |
6892 | } | |
9cae45dc JR |
6893 | if (!list_is_empty(&rule->meter_list_node)) { |
6894 | list_remove(&rule->meter_list_node); | |
51b50dfd | 6895 | list_init(&rule->meter_list_node); |
9cae45dc | 6896 | } |
d0918789 BP |
6897 | } |
6898 | ||
0b4f2078 EJ |
6899 | static void |
6900 | oftable_remove_rule(struct rule *rule) | |
15aaf599 | 6901 | OVS_REQUIRES(ofproto_mutex) |
0b4f2078 | 6902 | { |
8b81d1ef | 6903 | oftable_remove_rule__(rule->ofproto, rule); |
0b4f2078 EJ |
6904 | } |
6905 | ||
b277c7cc BP |
6906 | /* Inserts 'rule' into its oftable, which must not already contain any rule for |
6907 | * the same cls_rule. */ | |
6908 | static void | |
6909 | oftable_insert_rule(struct rule *rule) | |
15aaf599 | 6910 | OVS_REQUIRES(ofproto_mutex) |
d0918789 BP |
6911 | { |
6912 | struct ofproto *ofproto = rule->ofproto; | |
6913 | struct oftable *table = &ofproto->tables[rule->table_id]; | |
dc723c44 | 6914 | const struct rule_actions *actions; |
a3779dbc EJ |
6915 | bool may_expire; |
6916 | ||
d10976b7 | 6917 | ovs_mutex_lock(&rule->mutex); |
a3779dbc | 6918 | may_expire = rule->hard_timeout || rule->idle_timeout; |
d10976b7 | 6919 | ovs_mutex_unlock(&rule->mutex); |
e503cc19 SH |
6920 | |
6921 | if (may_expire) { | |
6922 | list_insert(&ofproto->expirable, &rule->expirable); | |
6923 | } | |
2c916028 | 6924 | |
98eaac36 | 6925 | cookies_insert(ofproto, rule); |
6f00e29b | 6926 | |
06a0f3e2 BP |
6927 | actions = rule_get_actions(rule); |
6928 | if (actions->provider_meter_id != UINT32_MAX) { | |
6929 | uint32_t meter_id = ofpacts_get_meter(actions->ofpacts, | |
6930 | actions->ofpacts_len); | |
65efd2ab | 6931 | struct meter *meter = ofproto->meters[meter_id]; |
9cae45dc JR |
6932 | list_insert(&meter->rules, &rule->meter_list_node); |
6933 | } | |
06f81620 | 6934 | fat_rwlock_wrlock(&table->cls.rwlock); |
49a0e0eb | 6935 | classifier_insert(&table->cls, CONST_CAST(struct cls_rule *, &rule->cr)); |
06f81620 | 6936 | fat_rwlock_unlock(&table->cls.rwlock); |
254750ce | 6937 | eviction_group_add_rule(rule); |
d0918789 BP |
6938 | } |
6939 | \f | |
abe529af | 6940 | /* unixctl commands. */ |
7aa697dd | 6941 | |
abe529af | 6942 | struct ofproto * |
2ac6bedd | 6943 | ofproto_lookup(const char *name) |
7aa697dd | 6944 | { |
2ac6bedd | 6945 | struct ofproto *ofproto; |
7aa697dd | 6946 | |
2ac6bedd BP |
6947 | HMAP_FOR_EACH_WITH_HASH (ofproto, hmap_node, hash_string(name, 0), |
6948 | &all_ofprotos) { | |
6949 | if (!strcmp(ofproto->name, name)) { | |
6950 | return ofproto; | |
6951 | } | |
7aa697dd | 6952 | } |
2ac6bedd | 6953 | return NULL; |
7aa697dd BP |
6954 | } |
6955 | ||
6956 | static void | |
0e15264f BP |
6957 | ofproto_unixctl_list(struct unixctl_conn *conn, int argc OVS_UNUSED, |
6958 | const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED) | |
7aa697dd | 6959 | { |
7aa697dd | 6960 | struct ofproto *ofproto; |
7aa697dd | 6961 | struct ds results; |
7aa697dd | 6962 | |
7aa697dd | 6963 | ds_init(&results); |
2ac6bedd BP |
6964 | HMAP_FOR_EACH (ofproto, hmap_node, &all_ofprotos) { |
6965 | ds_put_format(&results, "%s\n", ofproto->name); | |
7aa697dd | 6966 | } |
bde9f75d | 6967 | unixctl_command_reply(conn, ds_cstr(&results)); |
7aa697dd | 6968 | ds_destroy(&results); |
7aa697dd BP |
6969 | } |
6970 | ||
6971 | static void | |
6972 | ofproto_unixctl_init(void) | |
6973 | { | |
6974 | static bool registered; | |
6975 | if (registered) { | |
6976 | return; | |
6977 | } | |
6978 | registered = true; | |
6979 | ||
0e15264f BP |
6980 | unixctl_command_register("ofproto/list", "", 0, 0, |
6981 | ofproto_unixctl_list, NULL); | |
064af421 | 6982 | } |
52a90c29 BP |
6983 | \f |
6984 | /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.) | |
6985 | * | |
6986 | * This is deprecated. It is only for compatibility with broken device drivers | |
6987 | * in old versions of Linux that do not properly support VLANs when VLAN | |
6988 | * devices are not used. When broken device drivers are no longer in | |
6989 | * widespread use, we will delete these interfaces. */ | |
6990 | ||
6991 | /* Sets a 1-bit in the 4096-bit 'vlan_bitmap' for each VLAN ID that is matched | |
6992 | * (exactly) by an OpenFlow rule in 'ofproto'. */ | |
6993 | void | |
6994 | ofproto_get_vlan_usage(struct ofproto *ofproto, unsigned long int *vlan_bitmap) | |
6995 | { | |
ac4aa4c8 JR |
6996 | struct match match; |
6997 | struct cls_rule target; | |
d0918789 | 6998 | const struct oftable *oftable; |
52a90c29 | 6999 | |
ac4aa4c8 JR |
7000 | match_init_catchall(&match); |
7001 | match_set_vlan_vid_masked(&match, htons(VLAN_CFI), htons(VLAN_CFI)); | |
7002 | cls_rule_init(&target, &match, 0); | |
7003 | ||
52a90c29 BP |
7004 | free(ofproto->vlan_bitmap); |
7005 | ofproto->vlan_bitmap = bitmap_allocate(4096); | |
7006 | ofproto->vlans_changed = false; | |
7007 | ||
d0918789 | 7008 | OFPROTO_FOR_EACH_TABLE (oftable, ofproto) { |
ac4aa4c8 JR |
7009 | struct cls_cursor cursor; |
7010 | struct rule *rule; | |
52a90c29 | 7011 | |
06f81620 | 7012 | fat_rwlock_rdlock(&oftable->cls.rwlock); |
ac4aa4c8 JR |
7013 | cls_cursor_init(&cursor, &oftable->cls, &target); |
7014 | CLS_CURSOR_FOR_EACH (rule, cr, &cursor) { | |
7015 | if (minimask_get_vid_mask(&rule->cr.match.mask) == VLAN_VID_MASK) { | |
7016 | uint16_t vid = miniflow_get_vid(&rule->cr.match.flow); | |
7017 | ||
7018 | bitmap_set1(vlan_bitmap, vid); | |
7019 | bitmap_set1(ofproto->vlan_bitmap, vid); | |
52a90c29 BP |
7020 | } |
7021 | } | |
06f81620 | 7022 | fat_rwlock_unlock(&oftable->cls.rwlock); |
52a90c29 BP |
7023 | } |
7024 | } | |
7025 | ||
7026 | /* Returns true if new VLANs have come into use by the flow table since the | |
7027 | * last call to ofproto_get_vlan_usage(). | |
7028 | * | |
7029 | * We don't track when old VLANs stop being used. */ | |
7030 | bool | |
7031 | ofproto_has_vlan_usage_changed(const struct ofproto *ofproto) | |
7032 | { | |
7033 | return ofproto->vlans_changed; | |
7034 | } | |
7035 | ||
7036 | /* Configures a VLAN splinter binding between the ports identified by OpenFlow | |
7037 | * port numbers 'vlandev_ofp_port' and 'realdev_ofp_port'. If | |
7038 | * 'realdev_ofp_port' is nonzero, then the VLAN device is enslaved to the real | |
7039 | * device as a VLAN splinter for VLAN ID 'vid'. If 'realdev_ofp_port' is zero, | |
7040 | * then the VLAN device is un-enslaved. */ | |
7041 | int | |
4e022ec0 AW |
7042 | ofproto_port_set_realdev(struct ofproto *ofproto, ofp_port_t vlandev_ofp_port, |
7043 | ofp_port_t realdev_ofp_port, int vid) | |
52a90c29 BP |
7044 | { |
7045 | struct ofport *ofport; | |
7046 | int error; | |
7047 | ||
cb22974d | 7048 | ovs_assert(vlandev_ofp_port != realdev_ofp_port); |
52a90c29 BP |
7049 | |
7050 | ofport = ofproto_get_port(ofproto, vlandev_ofp_port); | |
7051 | if (!ofport) { | |
7052 | VLOG_WARN("%s: cannot set realdev on nonexistent port %"PRIu16, | |
7053 | ofproto->name, vlandev_ofp_port); | |
7054 | return EINVAL; | |
7055 | } | |
7056 | ||
7057 | if (!ofproto->ofproto_class->set_realdev) { | |
7058 | if (!vlandev_ofp_port) { | |
7059 | return 0; | |
7060 | } | |
7061 | VLOG_WARN("%s: vlan splinters not supported", ofproto->name); | |
7062 | return EOPNOTSUPP; | |
7063 | } | |
7064 | ||
7065 | error = ofproto->ofproto_class->set_realdev(ofport, realdev_ofp_port, vid); | |
7066 | if (error) { | |
7067 | VLOG_WARN("%s: setting realdev on port %"PRIu16" (%s) failed (%s)", | |
7068 | ofproto->name, vlandev_ofp_port, | |
10a89ef0 | 7069 | netdev_get_name(ofport->netdev), ovs_strerror(error)); |
52a90c29 BP |
7070 | } |
7071 | return error; | |
7072 | } |