2 * Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014 Nicira, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
20 #include <sys/types.h>
21 #include <netinet/in.h>
26 #include "classifier.h"
28 #include "meta-flow.h"
48 /* Needed for the lock annotations. */
49 extern struct ovs_mutex ofproto_mutex;
51 struct ofproto_controller_info {
53 enum ofp12_controller_role role;
57 struct ofproto_sflow_options {
59 uint32_t sampling_rate;
60 uint32_t polling_interval;
67 struct ofproto_ipfix_bridge_exporter_options {
69 uint32_t sampling_rate;
70 uint32_t obs_domain_id; /* Bridge-wide Observation Domain ID. */
71 uint32_t obs_point_id; /* Bridge-wide Observation Point ID. */
72 uint32_t cache_active_timeout;
73 uint32_t cache_max_flows;
74 bool enable_tunnel_sampling;
75 bool enable_input_sampling;
76 bool enable_output_sampling;
79 struct ofproto_ipfix_flow_exporter_options {
80 uint32_t collector_set_id;
82 uint32_t cache_active_timeout;
83 uint32_t cache_max_flows;
86 struct ofproto_stp_settings {
87 stp_identifier system_id;
94 struct ofproto_stp_status {
95 bool enabled; /* If false, ignore other members. */
96 stp_identifier bridge_id;
97 stp_identifier designated_root;
101 struct ofproto_port_stp_settings {
103 uint8_t port_num; /* In the range 1-255, inclusive. */
108 struct ofproto_port_stp_status {
109 bool enabled; /* If false, ignore other members. */
111 enum stp_state state;
112 unsigned int sec_in_state;
116 struct ofproto_port_stp_stats {
117 bool enabled; /* If false, ignore other members. */
118 int tx_count; /* Number of BPDUs transmitted. */
119 int rx_count; /* Number of valid BPDUs received. */
120 int error_count; /* Number of bad BPDUs received. */
123 struct ofproto_port_queue {
124 uint32_t queue; /* Queue ID. */
125 uint8_t dscp; /* DSCP bits (e.g. [0, 63]). */
128 struct ofproto_mcast_snooping_settings {
129 bool flood_unreg; /* If true, flood unregistered packets to all
130 all ports. If false, send only to ports
131 connected to multicast routers. */
132 unsigned int idle_time; /* Entry is removed after the idle time
134 unsigned int max_entries; /* Size of the multicast snooping table. */
137 /* How the switch should act if the controller cannot be contacted. */
138 enum ofproto_fail_mode {
139 OFPROTO_FAIL_SECURE, /* Preserve flow table. */
140 OFPROTO_FAIL_STANDALONE /* Act as a standalone switch. */
144 OFPROTO_IN_BAND, /* In-band connection to controller. */
145 OFPROTO_OUT_OF_BAND /* Out-of-band connection to controller. */
148 struct ofproto_controller {
149 char *target; /* e.g. "tcp:127.0.0.1" */
150 int max_backoff; /* Maximum reconnection backoff, in seconds. */
151 int probe_interval; /* Max idle time before probing, in seconds. */
152 enum ofproto_band band; /* In-band or out-of-band? */
153 bool enable_async_msgs; /* Initially enable asynchronous messages? */
155 /* OpenFlow packet-in rate-limiting. */
156 int rate_limit; /* Max packet-in rate in packets per second. */
157 int burst_limit; /* Limit on accumulating packet credits. */
159 uint8_t dscp; /* DSCP value for controller connection. */
162 void ofproto_enumerate_types(struct sset *types);
163 const char *ofproto_normalize_type(const char *);
165 int ofproto_enumerate_names(const char *type, struct sset *names);
166 void ofproto_parse_name(const char *name, char **dp_name, char **dp_type);
168 /* An interface hint element, which is used by ofproto_init() to
169 * describe the caller's understanding of the startup state. */
171 char *br_name; /* Name of owning bridge. */
172 char *br_type; /* Type of owning bridge. */
173 ofp_port_t ofp_port; /* OpenFlow port number. */
176 void ofproto_init(const struct shash *iface_hints);
178 int ofproto_type_run(const char *datapath_type);
179 void ofproto_type_wait(const char *datapath_type);
181 int ofproto_create(const char *datapath, const char *datapath_type,
182 struct ofproto **ofprotop);
183 void ofproto_destroy(struct ofproto *);
184 int ofproto_delete(const char *name, const char *type);
186 int ofproto_run(struct ofproto *);
187 void ofproto_wait(struct ofproto *);
188 bool ofproto_is_alive(const struct ofproto *);
190 void ofproto_get_memory_usage(const struct ofproto *, struct simap *);
191 void ofproto_type_get_memory_usage(const char *datapath_type, struct simap *);
193 /* A port within an OpenFlow switch.
195 * 'name' and 'type' are suitable for passing to netdev_open(). */
196 struct ofproto_port {
197 char *name; /* Network device name, e.g. "eth0". */
198 char *type; /* Network device type, e.g. "system". */
199 ofp_port_t ofp_port; /* OpenFlow port number. */
201 void ofproto_port_clone(struct ofproto_port *, const struct ofproto_port *);
202 void ofproto_port_destroy(struct ofproto_port *);
204 struct ofproto_port_dump {
205 const struct ofproto *ofproto;
209 void ofproto_port_dump_start(struct ofproto_port_dump *,
210 const struct ofproto *);
211 bool ofproto_port_dump_next(struct ofproto_port_dump *, struct ofproto_port *);
212 int ofproto_port_dump_done(struct ofproto_port_dump *);
214 /* Iterates through each OFPROTO_PORT in OFPROTO, using DUMP as state.
216 * Arguments all have pointer type.
218 * If you break out of the loop, then you need to free the dump structure by
219 * hand using ofproto_port_dump_done(). */
220 #define OFPROTO_PORT_FOR_EACH(OFPROTO_PORT, DUMP, OFPROTO) \
221 for (ofproto_port_dump_start(DUMP, OFPROTO); \
222 (ofproto_port_dump_next(DUMP, OFPROTO_PORT) \
224 : (ofproto_port_dump_done(DUMP), false)); \
227 #define OFPROTO_FLOW_LIMIT_DEFAULT 200000
228 #define OFPROTO_MAX_IDLE_DEFAULT 1500
230 const char *ofproto_port_open_type(const char *datapath_type,
231 const char *port_type);
232 int ofproto_port_add(struct ofproto *, struct netdev *, ofp_port_t *ofp_portp);
233 int ofproto_port_del(struct ofproto *, ofp_port_t ofp_port);
234 int ofproto_port_get_stats(const struct ofport *, struct netdev_stats *stats);
236 int ofproto_port_query_by_name(const struct ofproto *, const char *devname,
237 struct ofproto_port *);
239 /* Top-level configuration. */
240 uint64_t ofproto_get_datapath_id(const struct ofproto *);
241 void ofproto_set_datapath_id(struct ofproto *, uint64_t datapath_id);
242 void ofproto_set_controllers(struct ofproto *,
243 const struct ofproto_controller *, size_t n,
244 uint32_t allowed_versions);
245 void ofproto_set_fail_mode(struct ofproto *, enum ofproto_fail_mode fail_mode);
246 void ofproto_reconnect_controllers(struct ofproto *);
247 void ofproto_set_extra_in_band_remotes(struct ofproto *,
248 const struct sockaddr_in *, size_t n);
249 void ofproto_set_in_band_queue(struct ofproto *, int queue_id);
250 void ofproto_set_flow_limit(unsigned limit);
251 void ofproto_set_max_idle(unsigned max_idle);
252 void ofproto_set_forward_bpdu(struct ofproto *, bool forward_bpdu);
253 void ofproto_set_mac_table_config(struct ofproto *, unsigned idle_time,
255 int ofproto_set_mcast_snooping(struct ofproto *ofproto,
256 const struct ofproto_mcast_snooping_settings *s);
257 int ofproto_port_set_mcast_snooping(struct ofproto *ofproto, void *aux,
259 void ofproto_set_threads(int n_handlers, int n_revalidators);
260 void ofproto_set_dp_desc(struct ofproto *, const char *dp_desc);
261 int ofproto_set_snoops(struct ofproto *, const struct sset *snoops);
262 int ofproto_set_netflow(struct ofproto *,
263 const struct netflow_options *nf_options);
264 int ofproto_set_sflow(struct ofproto *, const struct ofproto_sflow_options *);
265 int ofproto_set_ipfix(struct ofproto *,
266 const struct ofproto_ipfix_bridge_exporter_options *,
267 const struct ofproto_ipfix_flow_exporter_options *,
269 void ofproto_set_flow_restore_wait(bool flow_restore_wait_db);
270 bool ofproto_get_flow_restore_wait(void);
271 int ofproto_set_stp(struct ofproto *, const struct ofproto_stp_settings *);
272 int ofproto_get_stp_status(struct ofproto *, struct ofproto_stp_status *);
274 /* Configuration of ports. */
275 void ofproto_port_unregister(struct ofproto *, ofp_port_t ofp_port);
277 void ofproto_port_clear_cfm(struct ofproto *, ofp_port_t ofp_port);
278 void ofproto_port_set_cfm(struct ofproto *, ofp_port_t ofp_port,
279 const struct cfm_settings *);
280 void ofproto_port_set_bfd(struct ofproto *, ofp_port_t ofp_port,
281 const struct smap *cfg);
282 bool ofproto_port_bfd_status_changed(struct ofproto *, ofp_port_t ofp_port);
283 int ofproto_port_get_bfd_status(struct ofproto *, ofp_port_t ofp_port,
285 int ofproto_port_is_lacp_current(struct ofproto *, ofp_port_t ofp_port);
286 int ofproto_port_set_stp(struct ofproto *, ofp_port_t ofp_port,
287 const struct ofproto_port_stp_settings *);
288 int ofproto_port_get_stp_status(struct ofproto *, ofp_port_t ofp_port,
289 struct ofproto_port_stp_status *);
290 int ofproto_port_get_stp_stats(struct ofproto *, ofp_port_t ofp_port,
291 struct ofproto_port_stp_stats *);
292 int ofproto_port_set_queues(struct ofproto *, ofp_port_t ofp_port,
293 const struct ofproto_port_queue *,
296 /* The behaviour of the port regarding VLAN handling */
297 enum port_vlan_mode {
298 /* This port is an access port. 'vlan' is the VLAN ID. 'trunks' is
302 /* This port is a trunk. 'trunks' is the set of trunks. 'vlan' is
306 /* Untagged incoming packets are part of 'vlan', as are incoming packets
307 * tagged with 'vlan'. Outgoing packets tagged with 'vlan' stay tagged.
308 * Other VLANs in 'trunks' are trunked. */
309 PORT_VLAN_NATIVE_TAGGED,
311 /* Untagged incoming packets are part of 'vlan', as are incoming packets
312 * tagged with 'vlan'. Outgoing packets tagged with 'vlan' are untagged.
313 * Other VLANs in 'trunks' are trunked. */
314 PORT_VLAN_NATIVE_UNTAGGED
317 /* Configuration of bundles. */
318 struct ofproto_bundle_settings {
319 char *name; /* For use in log messages. */
321 ofp_port_t *slaves; /* OpenFlow port numbers for slaves. */
324 enum port_vlan_mode vlan_mode; /* Selects mode for vlan and trunks */
325 int vlan; /* VLAN VID, except for PORT_VLAN_TRUNK. */
326 unsigned long *trunks; /* vlan_bitmap, except for PORT_VLAN_ACCESS. */
327 bool use_priority_tags; /* Use 802.1p tag for frames in VLAN 0? */
329 struct bond_settings *bond; /* Must be nonnull iff if n_slaves > 1. */
331 struct lacp_settings *lacp; /* Nonnull to enable LACP. */
332 struct lacp_slave_settings *lacp_slaves; /* Array of n_slaves elements. */
334 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
336 * This is deprecated. It is only for compatibility with broken device
337 * drivers in old versions of Linux that do not properly support VLANs when
338 * VLAN devices are not used. When broken device drivers are no longer in
339 * widespread use, we will delete these interfaces. */
340 ofp_port_t realdev_ofp_port;/* OpenFlow port number of real device. */
343 int ofproto_bundle_register(struct ofproto *, void *aux,
344 const struct ofproto_bundle_settings *);
345 int ofproto_bundle_unregister(struct ofproto *, void *aux);
347 /* Configuration of mirrors. */
348 struct ofproto_mirror_settings {
349 /* Name for log messages. */
352 /* Bundles that select packets for mirroring upon ingress. */
353 void **srcs; /* A set of registered ofbundle handles. */
356 /* Bundles that select packets for mirroring upon egress. */
357 void **dsts; /* A set of registered ofbundle handles. */
360 /* VLANs of packets to select for mirroring. */
361 unsigned long *src_vlans; /* vlan_bitmap, NULL selects all VLANs. */
363 /* Output (mutually exclusive). */
364 void *out_bundle; /* A registered ofbundle handle or NULL. */
365 uint16_t out_vlan; /* Output VLAN, only if out_bundle is NULL. */
368 int ofproto_mirror_register(struct ofproto *, void *aux,
369 const struct ofproto_mirror_settings *);
370 int ofproto_mirror_unregister(struct ofproto *, void *aux);
371 int ofproto_mirror_get_stats(struct ofproto *, void *aux,
372 uint64_t *packets, uint64_t *bytes);
374 int ofproto_set_flood_vlans(struct ofproto *, unsigned long *flood_vlans);
375 bool ofproto_is_mirror_output_bundle(const struct ofproto *, void *aux);
377 /* Configuration of OpenFlow tables. */
378 struct ofproto_table_settings {
379 char *name; /* Name exported via OpenFlow or NULL. */
380 unsigned int max_flows; /* Maximum number of flows or UINT_MAX. */
382 /* These members determine the handling of an attempt to add a flow that
383 * would cause the table to have more than 'max_flows' flows.
385 * If 'groups' is NULL, overflows will be rejected with an error.
387 * If 'groups' is nonnull, an overflow will cause a flow to be removed.
388 * The flow to be removed is chosen to give fairness among groups
389 * distinguished by different values for the subfields within 'groups'. */
390 struct mf_subfield *groups;
394 * Fields for which prefix trie lookup is maintained.
396 unsigned int n_prefix_fields;
397 enum mf_field_id prefix_fields[CLS_MAX_TRIES];
400 extern const enum mf_field_id default_prefix_fields[2];
401 BUILD_ASSERT_DECL(ARRAY_SIZE(default_prefix_fields) <= CLS_MAX_TRIES);
403 int ofproto_get_n_tables(const struct ofproto *);
404 uint8_t ofproto_get_n_visible_tables(const struct ofproto *);
405 void ofproto_configure_table(struct ofproto *, int table_id,
406 const struct ofproto_table_settings *);
408 /* Configuration querying. */
409 bool ofproto_has_snoops(const struct ofproto *);
410 void ofproto_get_snoops(const struct ofproto *, struct sset *);
411 void ofproto_get_all_flows(struct ofproto *p, struct ds *);
412 void ofproto_get_netflow_ids(const struct ofproto *,
413 uint8_t *engine_type, uint8_t *engine_id);
415 void ofproto_get_ofproto_controller_info(const struct ofproto *, struct shash *);
416 void ofproto_free_ofproto_controller_info(struct shash *);
418 bool ofproto_port_cfm_status_changed(struct ofproto *, ofp_port_t ofp_port);
420 int ofproto_port_get_cfm_status(const struct ofproto *,
422 struct cfm_status *);
424 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
426 * This is deprecated. It is only for compatibility with broken device drivers
427 * in old versions of Linux that do not properly support VLANs when VLAN
428 * devices are not used. When broken device drivers are no longer in
429 * widespread use, we will delete these interfaces. */
431 void ofproto_get_vlan_usage(struct ofproto *, unsigned long int *vlan_bitmap);
432 bool ofproto_has_vlan_usage_changed(const struct ofproto *);
433 int ofproto_port_set_realdev(struct ofproto *, ofp_port_t vlandev_ofp_port,
434 ofp_port_t realdev_ofp_port, int vid);
436 /* Table configuration */
438 enum ofputil_table_miss ofproto_table_get_miss_config(const struct ofproto *,
445 #endif /* ofproto.h */