2 * Copyright (c) 2009, 2010, 2011, 2012, 2013 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>
46 struct ofproto_controller_info {
48 enum ofp12_controller_role role;
51 const char *values[4];
58 uint64_t packet_count; /* Packets from subrules. */
59 uint64_t byte_count; /* Bytes from subrules. */
60 long long int used; /* Last-used time (0 if never used). */
63 struct ofproto_sflow_options {
65 uint32_t sampling_rate;
66 uint32_t polling_interval;
74 struct ofproto_ipfix_bridge_exporter_options {
76 uint32_t sampling_rate;
77 uint32_t obs_domain_id; /* Bridge-wide Observation Domain ID. */
78 uint32_t obs_point_id; /* Bridge-wide Observation Point ID. */
79 uint32_t cache_active_timeout;
80 uint32_t cache_max_flows;
83 struct ofproto_ipfix_flow_exporter_options {
84 uint32_t collector_set_id;
86 uint32_t cache_active_timeout;
87 uint32_t cache_max_flows;
90 struct ofproto_stp_settings {
91 stp_identifier system_id;
98 struct ofproto_stp_status {
99 bool enabled; /* If false, ignore other members. */
100 stp_identifier bridge_id;
101 stp_identifier designated_root;
105 struct ofproto_port_stp_settings {
107 uint8_t port_num; /* In the range 1-255, inclusive. */
112 struct ofproto_port_stp_status {
113 bool enabled; /* If false, ignore other members. */
115 enum stp_state state;
116 unsigned int sec_in_state;
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 /* How the switch should act if the controller cannot be contacted. */
129 enum ofproto_fail_mode {
130 OFPROTO_FAIL_SECURE, /* Preserve flow table. */
131 OFPROTO_FAIL_STANDALONE /* Act as a standalone switch. */
135 OFPROTO_IN_BAND, /* In-band connection to controller. */
136 OFPROTO_OUT_OF_BAND /* Out-of-band connection to controller. */
139 struct ofproto_controller {
140 char *target; /* e.g. "tcp:127.0.0.1" */
141 int max_backoff; /* Maximum reconnection backoff, in seconds. */
142 int probe_interval; /* Max idle time before probing, in seconds. */
143 enum ofproto_band band; /* In-band or out-of-band? */
144 bool enable_async_msgs; /* Initially enable asynchronous messages? */
146 /* OpenFlow packet-in rate-limiting. */
147 int rate_limit; /* Max packet-in rate in packets per second. */
148 int burst_limit; /* Limit on accumulating packet credits. */
150 uint8_t dscp; /* DSCP value for controller connection. */
153 void ofproto_enumerate_types(struct sset *types);
154 const char *ofproto_normalize_type(const char *);
156 int ofproto_enumerate_names(const char *type, struct sset *names);
157 void ofproto_parse_name(const char *name, char **dp_name, char **dp_type);
159 /* An interface hint element, which is used by ofproto_init() to
160 * describe the caller's understanding of the startup state. */
162 char *br_name; /* Name of owning bridge. */
163 char *br_type; /* Type of owning bridge. */
164 ofp_port_t ofp_port; /* OpenFlow port number. */
167 void ofproto_init(const struct shash *iface_hints);
169 int ofproto_type_run(const char *datapath_type);
170 int ofproto_type_run_fast(const char *datapath_type);
171 void ofproto_type_wait(const char *datapath_type);
173 int ofproto_create(const char *datapath, const char *datapath_type,
174 struct ofproto **ofprotop);
175 void ofproto_destroy(struct ofproto *);
176 int ofproto_delete(const char *name, const char *type);
178 int ofproto_run(struct ofproto *);
179 int ofproto_run_fast(struct ofproto *);
180 void ofproto_wait(struct ofproto *);
181 bool ofproto_is_alive(const struct ofproto *);
183 void ofproto_get_memory_usage(const struct ofproto *, struct simap *);
185 /* A port within an OpenFlow switch.
187 * 'name' and 'type' are suitable for passing to netdev_open(). */
188 struct ofproto_port {
189 char *name; /* Network device name, e.g. "eth0". */
190 char *type; /* Network device type, e.g. "system". */
191 ofp_port_t ofp_port; /* OpenFlow port number. */
193 void ofproto_port_clone(struct ofproto_port *, const struct ofproto_port *);
194 void ofproto_port_destroy(struct ofproto_port *);
196 struct ofproto_port_dump {
197 const struct ofproto *ofproto;
201 void ofproto_port_dump_start(struct ofproto_port_dump *,
202 const struct ofproto *);
203 bool ofproto_port_dump_next(struct ofproto_port_dump *, struct ofproto_port *);
204 int ofproto_port_dump_done(struct ofproto_port_dump *);
206 /* Iterates through each OFPROTO_PORT in OFPROTO, using DUMP as state.
208 * Arguments all have pointer type.
210 * If you break out of the loop, then you need to free the dump structure by
211 * hand using ofproto_port_dump_done(). */
212 #define OFPROTO_PORT_FOR_EACH(OFPROTO_PORT, DUMP, OFPROTO) \
213 for (ofproto_port_dump_start(DUMP, OFPROTO); \
214 (ofproto_port_dump_next(DUMP, OFPROTO_PORT) \
216 : (ofproto_port_dump_done(DUMP), false)); \
219 #define OFPROTO_FLOW_EVICTION_THRESHOLD_DEFAULT 2500
220 #define OFPROTO_FLOW_EVICTION_THRESHOLD_MIN 100
222 /* How flow misses should be handled in ofproto-dpif */
223 enum ofproto_flow_miss_model {
224 OFPROTO_HANDLE_MISS_AUTO, /* Based on flow eviction threshold. */
225 OFPROTO_HANDLE_MISS_WITH_FACETS, /* Always create facets. */
226 OFPROTO_HANDLE_MISS_WITHOUT_FACETS /* Always handle without facets.*/
229 const char *ofproto_port_open_type(const char *datapath_type,
230 const char *port_type);
231 int ofproto_port_add(struct ofproto *, struct netdev *, ofp_port_t *ofp_portp);
232 int ofproto_port_del(struct ofproto *, ofp_port_t ofp_port);
233 int ofproto_port_get_stats(const struct ofport *, struct netdev_stats *stats);
235 int ofproto_port_query_by_name(const struct ofproto *, const char *devname,
236 struct ofproto_port *);
238 /* Top-level configuration. */
239 uint64_t ofproto_get_datapath_id(const struct ofproto *);
240 void ofproto_set_datapath_id(struct ofproto *, uint64_t datapath_id);
241 void ofproto_set_controllers(struct ofproto *,
242 const struct ofproto_controller *, size_t n,
243 uint32_t allowed_versions);
244 void ofproto_set_fail_mode(struct ofproto *, enum ofproto_fail_mode fail_mode);
245 void ofproto_reconnect_controllers(struct ofproto *);
246 void ofproto_set_extra_in_band_remotes(struct ofproto *,
247 const struct sockaddr_in *, size_t n);
248 void ofproto_set_in_band_queue(struct ofproto *, int queue_id);
249 void ofproto_set_flow_eviction_threshold(unsigned threshold);
250 void ofproto_set_flow_miss_model(unsigned model);
251 void ofproto_set_forward_bpdu(struct ofproto *, bool forward_bpdu);
252 void ofproto_set_mac_table_config(struct ofproto *, unsigned idle_time,
254 void ofproto_set_n_handler_threads(unsigned limit);
255 void ofproto_set_dp_desc(struct ofproto *, const char *dp_desc);
256 int ofproto_set_snoops(struct ofproto *, const struct sset *snoops);
257 int ofproto_set_netflow(struct ofproto *,
258 const struct netflow_options *nf_options);
259 int ofproto_set_sflow(struct ofproto *, const struct ofproto_sflow_options *);
260 int ofproto_set_ipfix(struct ofproto *,
261 const struct ofproto_ipfix_bridge_exporter_options *,
262 const struct ofproto_ipfix_flow_exporter_options *,
264 void ofproto_set_flow_restore_wait(bool flow_restore_wait_db);
265 bool ofproto_get_flow_restore_wait(void);
266 int ofproto_set_stp(struct ofproto *, const struct ofproto_stp_settings *);
267 int ofproto_get_stp_status(struct ofproto *, struct ofproto_stp_status *);
269 /* Configuration of ports. */
270 void ofproto_port_unregister(struct ofproto *, ofp_port_t ofp_port);
272 void ofproto_port_clear_cfm(struct ofproto *, ofp_port_t ofp_port);
273 void ofproto_port_set_cfm(struct ofproto *, ofp_port_t ofp_port,
274 const struct cfm_settings *);
275 void ofproto_port_set_bfd(struct ofproto *, ofp_port_t ofp_port,
276 const struct smap *cfg);
277 int ofproto_port_get_bfd_status(struct ofproto *, ofp_port_t ofp_port,
279 int ofproto_port_is_lacp_current(struct ofproto *, ofp_port_t ofp_port);
280 int ofproto_port_set_stp(struct ofproto *, ofp_port_t ofp_port,
281 const struct ofproto_port_stp_settings *);
282 int ofproto_port_get_stp_status(struct ofproto *, ofp_port_t ofp_port,
283 struct ofproto_port_stp_status *);
284 int ofproto_port_set_queues(struct ofproto *, ofp_port_t ofp_port,
285 const struct ofproto_port_queue *,
288 /* The behaviour of the port regarding VLAN handling */
289 enum port_vlan_mode {
290 /* This port is an access port. 'vlan' is the VLAN ID. 'trunks' is
294 /* This port is a trunk. 'trunks' is the set of trunks. 'vlan' is
298 /* Untagged incoming packets are part of 'vlan', as are incoming packets
299 * tagged with 'vlan'. Outgoing packets tagged with 'vlan' stay tagged.
300 * Other VLANs in 'trunks' are trunked. */
301 PORT_VLAN_NATIVE_TAGGED,
303 /* Untagged incoming packets are part of 'vlan', as are incoming packets
304 * tagged with 'vlan'. Outgoing packets tagged with 'vlan' are untagged.
305 * Other VLANs in 'trunks' are trunked. */
306 PORT_VLAN_NATIVE_UNTAGGED
309 /* Configuration of bundles. */
310 struct ofproto_bundle_settings {
311 char *name; /* For use in log messages. */
313 ofp_port_t *slaves; /* OpenFlow port numbers for slaves. */
316 enum port_vlan_mode vlan_mode; /* Selects mode for vlan and trunks */
317 int vlan; /* VLAN VID, except for PORT_VLAN_TRUNK. */
318 unsigned long *trunks; /* vlan_bitmap, except for PORT_VLAN_ACCESS. */
319 bool use_priority_tags; /* Use 802.1p tag for frames in VLAN 0? */
321 struct bond_settings *bond; /* Must be nonnull iff if n_slaves > 1. */
323 struct lacp_settings *lacp; /* Nonnull to enable LACP. */
324 struct lacp_slave_settings *lacp_slaves; /* Array of n_slaves elements. */
326 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
328 * This is deprecated. It is only for compatibility with broken device
329 * drivers in old versions of Linux that do not properly support VLANs when
330 * VLAN devices are not used. When broken device drivers are no longer in
331 * widespread use, we will delete these interfaces. */
332 ofp_port_t realdev_ofp_port;/* OpenFlow port number of real device. */
335 int ofproto_bundle_register(struct ofproto *, void *aux,
336 const struct ofproto_bundle_settings *);
337 int ofproto_bundle_unregister(struct ofproto *, void *aux);
339 /* Configuration of mirrors. */
340 struct ofproto_mirror_settings {
341 /* Name for log messages. */
344 /* Bundles that select packets for mirroring upon ingress. */
345 void **srcs; /* A set of registered ofbundle handles. */
348 /* Bundles that select packets for mirroring upon egress. */
349 void **dsts; /* A set of registered ofbundle handles. */
352 /* VLANs of packets to select for mirroring. */
353 unsigned long *src_vlans; /* vlan_bitmap, NULL selects all VLANs. */
355 /* Output (mutually exclusive). */
356 void *out_bundle; /* A registered ofbundle handle or NULL. */
357 uint16_t out_vlan; /* Output VLAN, only if out_bundle is NULL. */
360 int ofproto_mirror_register(struct ofproto *, void *aux,
361 const struct ofproto_mirror_settings *);
362 int ofproto_mirror_unregister(struct ofproto *, void *aux);
363 int ofproto_mirror_get_stats(struct ofproto *, void *aux,
364 uint64_t *packets, uint64_t *bytes);
366 int ofproto_set_flood_vlans(struct ofproto *, unsigned long *flood_vlans);
367 bool ofproto_is_mirror_output_bundle(const struct ofproto *, void *aux);
369 /* Configuration of OpenFlow tables. */
370 struct ofproto_table_settings {
371 char *name; /* Name exported via OpenFlow or NULL. */
372 unsigned int max_flows; /* Maximum number of flows or UINT_MAX. */
374 /* These members determine the handling of an attempt to add a flow that
375 * would cause the table to have more than 'max_flows' flows.
377 * If 'groups' is NULL, overflows will be rejected with an error.
379 * If 'groups' is nonnull, an overflow will cause a flow to be removed.
380 * The flow to be removed is chosen to give fairness among groups
381 * distinguished by different values for the subfields within 'groups'. */
382 struct mf_subfield *groups;
386 int ofproto_get_n_tables(const struct ofproto *);
387 void ofproto_configure_table(struct ofproto *, int table_id,
388 const struct ofproto_table_settings *);
390 /* Configuration querying. */
391 bool ofproto_has_snoops(const struct ofproto *);
392 void ofproto_get_snoops(const struct ofproto *, struct sset *);
393 void ofproto_get_all_flows(struct ofproto *p, struct ds *);
394 void ofproto_get_netflow_ids(const struct ofproto *,
395 uint8_t *engine_type, uint8_t *engine_id);
397 void ofproto_get_ofproto_controller_info(const struct ofproto *, struct shash *);
398 void ofproto_free_ofproto_controller_info(struct shash *);
400 /* CFM status query. */
401 struct ofproto_cfm_status {
402 /* 0 if not faulted, otherwise a combination of one or more reasons. */
403 enum cfm_fault_reason faults;
405 /* 0 if the remote CFM endpoint is operationally down,
406 * 1 if the remote CFM endpoint is operationally up,
407 * -1 if we don't know because the remote CFM endpoint is not in extended
413 /* Ordinarily a "health status" in the range 0...100 inclusive, with 0
414 * being worst and 100 being best, or -1 if the health status is not
418 /* MPIDs of remote maintenance points whose CCMs have been received. */
423 bool ofproto_port_get_cfm_status(const struct ofproto *,
425 struct ofproto_cfm_status *);
427 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
429 * This is deprecated. It is only for compatibility with broken device drivers
430 * in old versions of Linux that do not properly support VLANs when VLAN
431 * devices are not used. When broken device drivers are no longer in
432 * widespread use, we will delete these interfaces. */
434 void ofproto_get_vlan_usage(struct ofproto *, unsigned long int *vlan_bitmap);
435 bool ofproto_has_vlan_usage_changed(const struct ofproto *);
436 int ofproto_port_set_realdev(struct ofproto *, ofp_port_t vlandev_ofp_port,
437 ofp_port_t realdev_ofp_port, int vid);
443 #endif /* ofproto.h */