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 struct ofproto_controller_info {
50 enum ofp12_controller_role role;
53 const char *values[4];
58 struct ofproto_sflow_options {
60 uint32_t sampling_rate;
61 uint32_t polling_interval;
68 struct ofproto_ipfix_bridge_exporter_options {
70 uint32_t sampling_rate;
71 uint32_t obs_domain_id; /* Bridge-wide Observation Domain ID. */
72 uint32_t obs_point_id; /* Bridge-wide Observation Point ID. */
73 uint32_t cache_active_timeout;
74 uint32_t cache_max_flows;
77 struct ofproto_ipfix_flow_exporter_options {
78 uint32_t collector_set_id;
80 uint32_t cache_active_timeout;
81 uint32_t cache_max_flows;
84 struct ofproto_stp_settings {
85 stp_identifier system_id;
92 struct ofproto_stp_status {
93 bool enabled; /* If false, ignore other members. */
94 stp_identifier bridge_id;
95 stp_identifier designated_root;
99 struct ofproto_port_stp_settings {
101 uint8_t port_num; /* In the range 1-255, inclusive. */
106 struct ofproto_port_stp_status {
107 bool enabled; /* If false, ignore other members. */
109 enum stp_state state;
110 unsigned int sec_in_state;
114 struct ofproto_port_stp_stats {
115 bool enabled; /* If false, ignore other members. */
116 int tx_count; /* Number of BPDUs transmitted. */
117 int rx_count; /* Number of valid BPDUs received. */
118 int error_count; /* Number of bad BPDUs received. */
121 struct ofproto_port_queue {
122 uint32_t queue; /* Queue ID. */
123 uint8_t dscp; /* DSCP bits (e.g. [0, 63]). */
126 /* How the switch should act if the controller cannot be contacted. */
127 enum ofproto_fail_mode {
128 OFPROTO_FAIL_SECURE, /* Preserve flow table. */
129 OFPROTO_FAIL_STANDALONE /* Act as a standalone switch. */
133 OFPROTO_IN_BAND, /* In-band connection to controller. */
134 OFPROTO_OUT_OF_BAND /* Out-of-band connection to controller. */
137 struct ofproto_controller {
138 char *target; /* e.g. "tcp:127.0.0.1" */
139 int max_backoff; /* Maximum reconnection backoff, in seconds. */
140 int probe_interval; /* Max idle time before probing, in seconds. */
141 enum ofproto_band band; /* In-band or out-of-band? */
142 bool enable_async_msgs; /* Initially enable asynchronous messages? */
144 /* OpenFlow packet-in rate-limiting. */
145 int rate_limit; /* Max packet-in rate in packets per second. */
146 int burst_limit; /* Limit on accumulating packet credits. */
148 uint8_t dscp; /* DSCP value for controller connection. */
151 void ofproto_enumerate_types(struct sset *types);
152 const char *ofproto_normalize_type(const char *);
154 int ofproto_enumerate_names(const char *type, struct sset *names);
155 void ofproto_parse_name(const char *name, char **dp_name, char **dp_type);
157 /* An interface hint element, which is used by ofproto_init() to
158 * describe the caller's understanding of the startup state. */
160 char *br_name; /* Name of owning bridge. */
161 char *br_type; /* Type of owning bridge. */
162 ofp_port_t ofp_port; /* OpenFlow port number. */
165 void ofproto_init(const struct shash *iface_hints);
167 int ofproto_type_run(const char *datapath_type);
168 void ofproto_type_wait(const char *datapath_type);
170 int ofproto_create(const char *datapath, const char *datapath_type,
171 struct ofproto **ofprotop);
172 void ofproto_destroy(struct ofproto *);
173 int ofproto_delete(const char *name, const char *type);
175 int ofproto_run(struct ofproto *);
176 void ofproto_wait(struct ofproto *);
177 bool ofproto_is_alive(const struct ofproto *);
179 void ofproto_get_memory_usage(const struct ofproto *, struct simap *);
180 void ofproto_type_get_memory_usage(const char *datapath_type, struct simap *);
182 /* A port within an OpenFlow switch.
184 * 'name' and 'type' are suitable for passing to netdev_open(). */
185 struct ofproto_port {
186 char *name; /* Network device name, e.g. "eth0". */
187 char *type; /* Network device type, e.g. "system". */
188 ofp_port_t ofp_port; /* OpenFlow port number. */
190 void ofproto_port_clone(struct ofproto_port *, const struct ofproto_port *);
191 void ofproto_port_destroy(struct ofproto_port *);
193 struct ofproto_port_dump {
194 const struct ofproto *ofproto;
198 void ofproto_port_dump_start(struct ofproto_port_dump *,
199 const struct ofproto *);
200 bool ofproto_port_dump_next(struct ofproto_port_dump *, struct ofproto_port *);
201 int ofproto_port_dump_done(struct ofproto_port_dump *);
203 /* Iterates through each OFPROTO_PORT in OFPROTO, using DUMP as state.
205 * Arguments all have pointer type.
207 * If you break out of the loop, then you need to free the dump structure by
208 * hand using ofproto_port_dump_done(). */
209 #define OFPROTO_PORT_FOR_EACH(OFPROTO_PORT, DUMP, OFPROTO) \
210 for (ofproto_port_dump_start(DUMP, OFPROTO); \
211 (ofproto_port_dump_next(DUMP, OFPROTO_PORT) \
213 : (ofproto_port_dump_done(DUMP), false)); \
216 #define OFPROTO_FLOW_LIMIT_DEFAULT 200000
217 #define OFPROTO_MAX_IDLE_DEFAULT 1500
219 const char *ofproto_port_open_type(const char *datapath_type,
220 const char *port_type);
221 int ofproto_port_add(struct ofproto *, struct netdev *, ofp_port_t *ofp_portp);
222 int ofproto_port_del(struct ofproto *, ofp_port_t ofp_port);
223 int ofproto_port_get_stats(const struct ofport *, struct netdev_stats *stats);
225 int ofproto_port_query_by_name(const struct ofproto *, const char *devname,
226 struct ofproto_port *);
228 /* Top-level configuration. */
229 uint64_t ofproto_get_datapath_id(const struct ofproto *);
230 void ofproto_set_datapath_id(struct ofproto *, uint64_t datapath_id);
231 void ofproto_set_controllers(struct ofproto *,
232 const struct ofproto_controller *, size_t n,
233 uint32_t allowed_versions);
234 void ofproto_set_fail_mode(struct ofproto *, enum ofproto_fail_mode fail_mode);
235 void ofproto_reconnect_controllers(struct ofproto *);
236 void ofproto_set_extra_in_band_remotes(struct ofproto *,
237 const struct sockaddr_in *, size_t n);
238 void ofproto_set_in_band_queue(struct ofproto *, int queue_id);
239 void ofproto_set_flow_limit(unsigned limit);
240 void ofproto_set_max_idle(unsigned max_idle);
241 void ofproto_set_forward_bpdu(struct ofproto *, bool forward_bpdu);
242 void ofproto_set_mac_table_config(struct ofproto *, unsigned idle_time,
244 void ofproto_set_threads(int n_handlers, int n_revalidators);
245 void ofproto_set_dp_desc(struct ofproto *, const char *dp_desc);
246 int ofproto_set_snoops(struct ofproto *, const struct sset *snoops);
247 int ofproto_set_netflow(struct ofproto *,
248 const struct netflow_options *nf_options);
249 int ofproto_set_sflow(struct ofproto *, const struct ofproto_sflow_options *);
250 int ofproto_set_ipfix(struct ofproto *,
251 const struct ofproto_ipfix_bridge_exporter_options *,
252 const struct ofproto_ipfix_flow_exporter_options *,
254 void ofproto_set_flow_restore_wait(bool flow_restore_wait_db);
255 bool ofproto_get_flow_restore_wait(void);
256 int ofproto_set_stp(struct ofproto *, const struct ofproto_stp_settings *);
257 int ofproto_get_stp_status(struct ofproto *, struct ofproto_stp_status *);
259 /* Configuration of ports. */
260 void ofproto_port_unregister(struct ofproto *, ofp_port_t ofp_port);
262 void ofproto_port_clear_cfm(struct ofproto *, ofp_port_t ofp_port);
263 void ofproto_port_set_cfm(struct ofproto *, ofp_port_t ofp_port,
264 const struct cfm_settings *);
265 void ofproto_port_set_bfd(struct ofproto *, ofp_port_t ofp_port,
266 const struct smap *cfg);
267 bool ofproto_port_bfd_status_changed(struct ofproto *, ofp_port_t ofp_port);
268 int ofproto_port_get_bfd_status(struct ofproto *, ofp_port_t ofp_port,
270 int ofproto_port_is_lacp_current(struct ofproto *, ofp_port_t ofp_port);
271 int ofproto_port_set_stp(struct ofproto *, ofp_port_t ofp_port,
272 const struct ofproto_port_stp_settings *);
273 int ofproto_port_get_stp_status(struct ofproto *, ofp_port_t ofp_port,
274 struct ofproto_port_stp_status *);
275 int ofproto_port_get_stp_stats(struct ofproto *, ofp_port_t ofp_port,
276 struct ofproto_port_stp_stats *);
277 int ofproto_port_set_queues(struct ofproto *, ofp_port_t ofp_port,
278 const struct ofproto_port_queue *,
281 /* The behaviour of the port regarding VLAN handling */
282 enum port_vlan_mode {
283 /* This port is an access port. 'vlan' is the VLAN ID. 'trunks' is
287 /* This port is a trunk. 'trunks' is the set of trunks. 'vlan' is
291 /* Untagged incoming packets are part of 'vlan', as are incoming packets
292 * tagged with 'vlan'. Outgoing packets tagged with 'vlan' stay tagged.
293 * Other VLANs in 'trunks' are trunked. */
294 PORT_VLAN_NATIVE_TAGGED,
296 /* Untagged incoming packets are part of 'vlan', as are incoming packets
297 * tagged with 'vlan'. Outgoing packets tagged with 'vlan' are untagged.
298 * Other VLANs in 'trunks' are trunked. */
299 PORT_VLAN_NATIVE_UNTAGGED
302 /* Configuration of bundles. */
303 struct ofproto_bundle_settings {
304 char *name; /* For use in log messages. */
306 ofp_port_t *slaves; /* OpenFlow port numbers for slaves. */
309 enum port_vlan_mode vlan_mode; /* Selects mode for vlan and trunks */
310 int vlan; /* VLAN VID, except for PORT_VLAN_TRUNK. */
311 unsigned long *trunks; /* vlan_bitmap, except for PORT_VLAN_ACCESS. */
312 bool use_priority_tags; /* Use 802.1p tag for frames in VLAN 0? */
314 struct bond_settings *bond; /* Must be nonnull iff if n_slaves > 1. */
316 struct lacp_settings *lacp; /* Nonnull to enable LACP. */
317 struct lacp_slave_settings *lacp_slaves; /* Array of n_slaves elements. */
319 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
321 * This is deprecated. It is only for compatibility with broken device
322 * drivers in old versions of Linux that do not properly support VLANs when
323 * VLAN devices are not used. When broken device drivers are no longer in
324 * widespread use, we will delete these interfaces. */
325 ofp_port_t realdev_ofp_port;/* OpenFlow port number of real device. */
328 int ofproto_bundle_register(struct ofproto *, void *aux,
329 const struct ofproto_bundle_settings *);
330 int ofproto_bundle_unregister(struct ofproto *, void *aux);
332 /* Configuration of mirrors. */
333 struct ofproto_mirror_settings {
334 /* Name for log messages. */
337 /* Bundles that select packets for mirroring upon ingress. */
338 void **srcs; /* A set of registered ofbundle handles. */
341 /* Bundles that select packets for mirroring upon egress. */
342 void **dsts; /* A set of registered ofbundle handles. */
345 /* VLANs of packets to select for mirroring. */
346 unsigned long *src_vlans; /* vlan_bitmap, NULL selects all VLANs. */
348 /* Output (mutually exclusive). */
349 void *out_bundle; /* A registered ofbundle handle or NULL. */
350 uint16_t out_vlan; /* Output VLAN, only if out_bundle is NULL. */
353 int ofproto_mirror_register(struct ofproto *, void *aux,
354 const struct ofproto_mirror_settings *);
355 int ofproto_mirror_unregister(struct ofproto *, void *aux);
356 int ofproto_mirror_get_stats(struct ofproto *, void *aux,
357 uint64_t *packets, uint64_t *bytes);
359 int ofproto_set_flood_vlans(struct ofproto *, unsigned long *flood_vlans);
360 bool ofproto_is_mirror_output_bundle(const struct ofproto *, void *aux);
362 /* Configuration of OpenFlow tables. */
363 struct ofproto_table_settings {
364 char *name; /* Name exported via OpenFlow or NULL. */
365 unsigned int max_flows; /* Maximum number of flows or UINT_MAX. */
367 /* These members determine the handling of an attempt to add a flow that
368 * would cause the table to have more than 'max_flows' flows.
370 * If 'groups' is NULL, overflows will be rejected with an error.
372 * If 'groups' is nonnull, an overflow will cause a flow to be removed.
373 * The flow to be removed is chosen to give fairness among groups
374 * distinguished by different values for the subfields within 'groups'. */
375 struct mf_subfield *groups;
379 * Fields for which prefix trie lookup is maintained.
381 unsigned int n_prefix_fields;
382 enum mf_field_id prefix_fields[CLS_MAX_TRIES];
385 extern const enum mf_field_id default_prefix_fields[2];
386 BUILD_ASSERT_DECL(ARRAY_SIZE(default_prefix_fields) <= CLS_MAX_TRIES);
388 int ofproto_get_n_tables(const struct ofproto *);
389 uint8_t ofproto_get_n_visible_tables(const struct ofproto *);
390 void ofproto_configure_table(struct ofproto *, int table_id,
391 const struct ofproto_table_settings *);
393 /* Configuration querying. */
394 bool ofproto_has_snoops(const struct ofproto *);
395 void ofproto_get_snoops(const struct ofproto *, struct sset *);
396 void ofproto_get_all_flows(struct ofproto *p, struct ds *);
397 void ofproto_get_netflow_ids(const struct ofproto *,
398 uint8_t *engine_type, uint8_t *engine_id);
400 void ofproto_get_ofproto_controller_info(const struct ofproto *, struct shash *);
401 void ofproto_free_ofproto_controller_info(struct shash *);
403 bool ofproto_port_cfm_status_changed(struct ofproto *, ofp_port_t ofp_port);
405 int ofproto_port_get_cfm_status(const struct ofproto *,
407 struct cfm_status *);
409 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
411 * This is deprecated. It is only for compatibility with broken device drivers
412 * in old versions of Linux that do not properly support VLANs when VLAN
413 * devices are not used. When broken device drivers are no longer in
414 * widespread use, we will delete these interfaces. */
416 void ofproto_get_vlan_usage(struct ofproto *, unsigned long int *vlan_bitmap);
417 bool ofproto_has_vlan_usage_changed(const struct ofproto *);
418 int ofproto_port_set_realdev(struct ofproto *, ofp_port_t vlandev_ofp_port,
419 ofp_port_t realdev_ofp_port, int vid);
421 /* Table configuration */
423 enum ofproto_table_config {
424 /* Send to controller. */
425 OFPROTO_TABLE_MISS_CONTROLLER = OFPTC11_TABLE_MISS_CONTROLLER,
427 /* Continue to the next table in the pipeline (OpenFlow 1.0 behavior). */
428 OFPROTO_TABLE_MISS_CONTINUE = OFPTC11_TABLE_MISS_CONTINUE,
430 /* Drop the packet. */
431 OFPROTO_TABLE_MISS_DROP = OFPTC11_TABLE_MISS_DROP,
433 /* The default miss behaviour for the OpenFlow version of the controller a
434 * packet_in message would be sent to.. For pre-OF1.3 controllers, send
435 * packet_in to controller. For OF1.3+ controllers, drop. */
436 OFPROTO_TABLE_MISS_DEFAULT = 3,
439 enum ofproto_table_config ofproto_table_get_config(const struct ofproto *,
446 #endif /* ofproto.h */