1 /* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
21 #include "async-append.h"
25 #include "connectivity.h"
29 #include "dynamic-string.h"
36 #include "mac-learning.h"
37 #include "meta-flow.h"
39 #include "ofp-print.h"
42 #include "ofproto/bond.h"
43 #include "ofproto/ofproto.h"
44 #include "poll-loop.h"
49 #include "socket-util.h"
51 #include "stream-ssl.h"
53 #include "system-stats.h"
58 #include "lib/vswitch-idl.h"
59 #include "xenserver.h"
61 #include "sflow_api.h"
62 #include "vlan-bitmap.h"
64 VLOG_DEFINE_THIS_MODULE(bridge);
66 COVERAGE_DEFINE(bridge_reconfigure);
69 /* These members are always valid.
71 * They are immutable: they never change between iface_create() and
73 struct list port_elem; /* Element in struct port's "ifaces" list. */
74 struct hmap_node name_node; /* In struct bridge's "iface_by_name" hmap. */
75 struct hmap_node ofp_port_node; /* In struct bridge's "ifaces" hmap. */
76 struct port *port; /* Containing port. */
77 char *name; /* Host network device name. */
78 struct netdev *netdev; /* Network device. */
79 ofp_port_t ofp_port; /* OpenFlow port number. */
81 /* These members are valid only within bridge_reconfigure(). */
82 const char *type; /* Usually same as cfg->type. */
83 const struct ovsrec_interface *cfg;
87 struct uuid uuid; /* UUID of this "mirror" record in database. */
88 struct hmap_node hmap_node; /* In struct bridge's "mirrors" hmap. */
89 struct bridge *bridge;
91 const struct ovsrec_mirror *cfg;
95 struct hmap_node hmap_node; /* Element in struct bridge's "ports" hmap. */
96 struct bridge *bridge;
99 const struct ovsrec_port *cfg;
101 /* An ordinary bridge port has 1 interface.
102 * A bridge port for bonding has at least 2 interfaces. */
103 struct list ifaces; /* List of "struct iface"s. */
107 struct hmap_node node; /* In 'all_bridges'. */
108 char *name; /* User-specified arbitrary name. */
109 char *type; /* Datapath type. */
110 uint8_t ea[ETH_ADDR_LEN]; /* Bridge Ethernet Address. */
111 uint8_t default_ea[ETH_ADDR_LEN]; /* Default MAC. */
112 const struct ovsrec_bridge *cfg;
114 /* OpenFlow switch processing. */
115 struct ofproto *ofproto; /* OpenFlow switch. */
118 struct hmap ports; /* "struct port"s indexed by name. */
119 struct hmap ifaces; /* "struct iface"s indexed by ofp_port. */
120 struct hmap iface_by_name; /* "struct iface"s indexed by name. */
122 /* Port mirroring. */
123 struct hmap mirrors; /* "struct mirror" indexed by UUID. */
125 /* Used during reconfiguration. */
126 struct shash wanted_ports;
128 /* Synthetic local port if necessary. */
129 struct ovsrec_port synth_local_port;
130 struct ovsrec_interface synth_local_iface;
131 struct ovsrec_interface *synth_local_ifacep;
134 /* All bridges, indexed by name. */
135 static struct hmap all_bridges = HMAP_INITIALIZER(&all_bridges);
137 /* OVSDB IDL used to obtain configuration. */
138 static struct ovsdb_idl *idl;
140 /* We want to complete daemonization, fully detaching from our parent process,
141 * only after we have completed our initial configuration, committed our state
142 * to the database, and received confirmation back from the database server
143 * that it applied the commit. This allows our parent process to know that,
144 * post-detach, ephemeral fields such as datapath-id and ofport are very likely
145 * to have already been filled in. (It is only "very likely" rather than
146 * certain because there is always a slim possibility that the transaction will
147 * fail or that some other client has added new bridges, ports, etc. while
148 * ovs-vswitchd was configuring using an old configuration.)
150 * We only need to do this once for our initial configuration at startup, so
151 * 'initial_config_done' tracks whether we've already done it. While we are
152 * waiting for a response to our commit, 'daemonize_txn' tracks the transaction
153 * itself and is otherwise NULL. */
154 static bool initial_config_done;
155 static struct ovsdb_idl_txn *daemonize_txn;
157 /* Most recently processed IDL sequence number. */
158 static unsigned int idl_seqno;
160 /* Track changes to port connectivity. */
161 static uint64_t connectivity_seqno = LLONG_MIN;
163 /* Each time this timer expires, the bridge fetches interface and mirror
164 * statistics and pushes them into the database. */
165 #define IFACE_STATS_INTERVAL (5 * 1000) /* In milliseconds. */
166 static long long int iface_stats_timer = LLONG_MIN;
168 /* In some datapaths, creating and destroying OpenFlow ports can be extremely
169 * expensive. This can cause bridge_reconfigure() to take a long time during
170 * which no other work can be done. To deal with this problem, we limit port
171 * adds and deletions to a window of OFP_PORT_ACTION_WINDOW milliseconds per
172 * call to bridge_reconfigure(). If there is more work to do after the limit
173 * is reached, 'need_reconfigure', is flagged and it's done on the next loop.
174 * This allows the rest of the code to catch up on important things like
175 * forwarding packets. */
176 #define OFP_PORT_ACTION_WINDOW 10
178 static void add_del_bridges(const struct ovsrec_open_vswitch *);
179 static void bridge_create(const struct ovsrec_bridge *);
180 static void bridge_destroy(struct bridge *);
181 static struct bridge *bridge_lookup(const char *name);
182 static unixctl_cb_func bridge_unixctl_dump_flows;
183 static unixctl_cb_func bridge_unixctl_reconnect;
184 static size_t bridge_get_controllers(const struct bridge *br,
185 struct ovsrec_controller ***controllersp);
186 static void bridge_collect_wanted_ports(struct bridge *,
187 const unsigned long *splinter_vlans,
188 struct shash *wanted_ports);
189 static void bridge_delete_ofprotos(void);
190 static void bridge_delete_or_reconfigure_ports(struct bridge *);
191 static void bridge_del_ports(struct bridge *,
192 const struct shash *wanted_ports);
193 static void bridge_add_ports(struct bridge *,
194 const struct shash *wanted_ports);
196 static void bridge_configure_flow_miss_model(const char *opt);
197 static void bridge_configure_datapath_id(struct bridge *);
198 static void bridge_configure_netflow(struct bridge *);
199 static void bridge_configure_forward_bpdu(struct bridge *);
200 static void bridge_configure_mac_table(struct bridge *);
201 static void bridge_configure_sflow(struct bridge *, int *sflow_bridge_number);
202 static void bridge_configure_ipfix(struct bridge *);
203 static void bridge_configure_stp(struct bridge *);
204 static void bridge_configure_tables(struct bridge *);
205 static void bridge_configure_dp_desc(struct bridge *);
206 static void bridge_configure_remotes(struct bridge *,
207 const struct sockaddr_in *managers,
209 static void bridge_pick_local_hw_addr(struct bridge *,
210 uint8_t ea[ETH_ADDR_LEN],
211 struct iface **hw_addr_iface);
212 static uint64_t bridge_pick_datapath_id(struct bridge *,
213 const uint8_t bridge_ea[ETH_ADDR_LEN],
214 struct iface *hw_addr_iface);
215 static uint64_t dpid_from_hash(const void *, size_t nbytes);
216 static bool bridge_has_bond_fake_iface(const struct bridge *,
218 static bool port_is_bond_fake_iface(const struct port *);
220 static unixctl_cb_func qos_unixctl_show;
222 static struct port *port_create(struct bridge *, const struct ovsrec_port *);
223 static void port_del_ifaces(struct port *);
224 static void port_destroy(struct port *);
225 static struct port *port_lookup(const struct bridge *, const char *name);
226 static void port_configure(struct port *);
227 static struct lacp_settings *port_configure_lacp(struct port *,
228 struct lacp_settings *);
229 static void port_configure_bond(struct port *, struct bond_settings *);
230 static bool port_is_synthetic(const struct port *);
232 static void reconfigure_system_stats(const struct ovsrec_open_vswitch *);
233 static void run_system_stats(void);
235 static void bridge_configure_mirrors(struct bridge *);
236 static struct mirror *mirror_create(struct bridge *,
237 const struct ovsrec_mirror *);
238 static void mirror_destroy(struct mirror *);
239 static bool mirror_configure(struct mirror *);
240 static void mirror_refresh_stats(struct mirror *);
242 static void iface_configure_lacp(struct iface *, struct lacp_slave_settings *);
243 static bool iface_create(struct bridge *, const struct ovsrec_interface *,
244 const struct ovsrec_port *);
245 static bool iface_is_internal(const struct ovsrec_interface *iface,
246 const struct ovsrec_bridge *br);
247 static const char *iface_get_type(const struct ovsrec_interface *,
248 const struct ovsrec_bridge *);
249 static void iface_destroy(struct iface *);
250 static struct iface *iface_lookup(const struct bridge *, const char *name);
251 static struct iface *iface_find(const char *name);
252 static struct iface *iface_from_ofp_port(const struct bridge *,
253 ofp_port_t ofp_port);
254 static void iface_set_mac(struct iface *);
255 static void iface_set_ofport(const struct ovsrec_interface *, ofp_port_t ofport);
256 static void iface_clear_db_record(const struct ovsrec_interface *if_cfg);
257 static void iface_configure_qos(struct iface *, const struct ovsrec_qos *);
258 static void iface_configure_cfm(struct iface *);
259 static void iface_refresh_cfm_stats(struct iface *);
260 static void iface_refresh_stats(struct iface *);
261 static void iface_refresh_status(struct iface *);
262 static bool iface_is_synthetic(const struct iface *);
263 static ofp_port_t iface_get_requested_ofp_port(
264 const struct ovsrec_interface *);
265 static ofp_port_t iface_pick_ofport(const struct ovsrec_interface *);
267 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
269 * This is deprecated. It is only for compatibility with broken device drivers
270 * in old versions of Linux that do not properly support VLANs when VLAN
271 * devices are not used. When broken device drivers are no longer in
272 * widespread use, we will delete these interfaces. */
274 /* True if VLAN splinters are enabled on any interface, false otherwise.*/
275 static bool vlan_splinters_enabled_anywhere;
277 static bool vlan_splinters_is_enabled(const struct ovsrec_interface *);
278 static unsigned long int *collect_splinter_vlans(
279 const struct ovsrec_open_vswitch *);
280 static void configure_splinter_port(struct port *);
281 static void add_vlan_splinter_ports(struct bridge *,
282 const unsigned long int *splinter_vlans,
283 struct shash *ports);
286 bridge_init_ofproto(const struct ovsrec_open_vswitch *cfg)
288 struct shash iface_hints;
289 static bool initialized = false;
296 shash_init(&iface_hints);
299 for (i = 0; i < cfg->n_bridges; i++) {
300 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
303 for (j = 0; j < br_cfg->n_ports; j++) {
304 struct ovsrec_port *port_cfg = br_cfg->ports[j];
307 for (k = 0; k < port_cfg->n_interfaces; k++) {
308 struct ovsrec_interface *if_cfg = port_cfg->interfaces[k];
309 struct iface_hint *iface_hint;
311 iface_hint = xmalloc(sizeof *iface_hint);
312 iface_hint->br_name = br_cfg->name;
313 iface_hint->br_type = br_cfg->datapath_type;
314 iface_hint->ofp_port = iface_pick_ofport(if_cfg);
316 shash_add(&iface_hints, if_cfg->name, iface_hint);
322 ofproto_init(&iface_hints);
324 shash_destroy_free_data(&iface_hints);
328 /* Public functions. */
330 /* Initializes the bridge module, configuring it to obtain its configuration
331 * from an OVSDB server accessed over 'remote', which should be a string in a
332 * form acceptable to ovsdb_idl_create(). */
334 bridge_init(const char *remote)
336 /* Create connection to database. */
337 idl = ovsdb_idl_create(remote, &ovsrec_idl_class, true, true);
338 idl_seqno = ovsdb_idl_get_seqno(idl);
339 ovsdb_idl_set_lock(idl, "ovs_vswitchd");
340 ovsdb_idl_verify_write_only(idl);
342 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_cur_cfg);
343 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_statistics);
344 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_external_ids);
345 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_ovs_version);
346 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_db_version);
347 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_type);
348 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_version);
350 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_datapath_id);
351 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_status);
352 ovsdb_idl_omit(idl, &ovsrec_bridge_col_external_ids);
354 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_status);
355 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_statistics);
356 ovsdb_idl_omit(idl, &ovsrec_port_col_external_ids);
357 ovsdb_idl_omit(idl, &ovsrec_port_col_fake_bridge);
359 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_admin_state);
360 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_duplex);
361 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_speed);
362 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_state);
363 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_resets);
364 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mac_in_use);
365 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ifindex);
366 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mtu);
367 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ofport);
368 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_statistics);
369 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_status);
370 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault);
371 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault_status);
372 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_remote_mpids);
373 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_flap_count);
374 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_health);
375 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_remote_opstate);
376 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_bfd_status);
377 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_lacp_current);
378 ovsdb_idl_omit(idl, &ovsrec_interface_col_external_ids);
380 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_is_connected);
381 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_role);
382 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_status);
383 ovsdb_idl_omit(idl, &ovsrec_controller_col_external_ids);
385 ovsdb_idl_omit(idl, &ovsrec_qos_col_external_ids);
387 ovsdb_idl_omit(idl, &ovsrec_queue_col_external_ids);
389 ovsdb_idl_omit(idl, &ovsrec_mirror_col_external_ids);
390 ovsdb_idl_omit_alert(idl, &ovsrec_mirror_col_statistics);
392 ovsdb_idl_omit(idl, &ovsrec_netflow_col_external_ids);
393 ovsdb_idl_omit(idl, &ovsrec_sflow_col_external_ids);
394 ovsdb_idl_omit(idl, &ovsrec_ipfix_col_external_ids);
395 ovsdb_idl_omit(idl, &ovsrec_flow_sample_collector_set_col_external_ids);
397 ovsdb_idl_omit(idl, &ovsrec_manager_col_external_ids);
398 ovsdb_idl_omit(idl, &ovsrec_manager_col_inactivity_probe);
399 ovsdb_idl_omit(idl, &ovsrec_manager_col_is_connected);
400 ovsdb_idl_omit(idl, &ovsrec_manager_col_max_backoff);
401 ovsdb_idl_omit(idl, &ovsrec_manager_col_status);
403 ovsdb_idl_omit(idl, &ovsrec_ssl_col_external_ids);
405 /* Register unixctl commands. */
406 unixctl_command_register("qos/show", "interface", 1, 1,
407 qos_unixctl_show, NULL);
408 unixctl_command_register("bridge/dump-flows", "bridge", 1, 1,
409 bridge_unixctl_dump_flows, NULL);
410 unixctl_command_register("bridge/reconnect", "[bridge]", 0, 1,
411 bridge_unixctl_reconnect, NULL);
421 struct bridge *br, *next_br;
423 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
426 ovsdb_idl_destroy(idl);
429 /* Looks at the list of managers in 'ovs_cfg' and extracts their remote IP
430 * addresses and ports into '*managersp' and '*n_managersp'. The caller is
431 * responsible for freeing '*managersp' (with free()).
433 * You may be asking yourself "why does ovs-vswitchd care?", because
434 * ovsdb-server is responsible for connecting to the managers, and ovs-vswitchd
435 * should not be and in fact is not directly involved in that. But
436 * ovs-vswitchd needs to make sure that ovsdb-server can reach the managers, so
437 * it has to tell in-band control where the managers are to enable that.
438 * (Thus, only managers connected in-band are collected.)
441 collect_in_band_managers(const struct ovsrec_open_vswitch *ovs_cfg,
442 struct sockaddr_in **managersp, size_t *n_managersp)
444 struct sockaddr_in *managers = NULL;
445 size_t n_managers = 0;
449 /* Collect all of the potential targets from the "targets" columns of the
450 * rows pointed to by "manager_options", excluding any that are
453 for (i = 0; i < ovs_cfg->n_manager_options; i++) {
454 struct ovsrec_manager *m = ovs_cfg->manager_options[i];
456 if (m->connection_mode && !strcmp(m->connection_mode, "out-of-band")) {
457 sset_find_and_delete(&targets, m->target);
459 sset_add(&targets, m->target);
463 /* Now extract the targets' IP addresses. */
464 if (!sset_is_empty(&targets)) {
467 managers = xmalloc(sset_count(&targets) * sizeof *managers);
468 SSET_FOR_EACH (target, &targets) {
469 struct sockaddr_in *sin = &managers[n_managers];
471 if (stream_parse_target_with_default_port(target,
478 sset_destroy(&targets);
480 *managersp = managers;
481 *n_managersp = n_managers;
485 bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
487 unsigned long int *splinter_vlans;
488 struct sockaddr_in *managers;
489 struct bridge *br, *next;
490 int sflow_bridge_number;
493 COVERAGE_INC(bridge_reconfigure);
495 ofproto_set_flow_eviction_threshold(
496 smap_get_int(&ovs_cfg->other_config, "flow-eviction-threshold",
497 OFPROTO_FLOW_EVICTION_THRESHOLD_DEFAULT));
499 ofproto_set_n_handler_threads(
500 smap_get_int(&ovs_cfg->other_config, "n-handler-threads", 0));
502 bridge_configure_flow_miss_model(smap_get(&ovs_cfg->other_config,
503 "force-miss-model"));
505 /* Destroy "struct bridge"s, "struct port"s, and "struct iface"s according
506 * to 'ovs_cfg', with only very minimal configuration otherwise.
508 * This is mostly an update to bridge data structures. Nothing is pushed
509 * down to ofproto or lower layers. */
510 add_del_bridges(ovs_cfg);
511 splinter_vlans = collect_splinter_vlans(ovs_cfg);
512 HMAP_FOR_EACH (br, node, &all_bridges) {
513 bridge_collect_wanted_ports(br, splinter_vlans, &br->wanted_ports);
514 bridge_del_ports(br, &br->wanted_ports);
516 free(splinter_vlans);
518 /* Start pushing configuration changes down to the ofproto layer:
520 * - Delete ofprotos that are no longer configured.
522 * - Delete ports that are no longer configured.
524 * - Reconfigure existing ports to their desired configurations, or
525 * delete them if not possible.
527 * We have to do all the deletions before we can do any additions, because
528 * the ports to be added might require resources that will be freed up by
529 * deletions (they might especially overlap in name). */
530 bridge_delete_ofprotos();
531 HMAP_FOR_EACH (br, node, &all_bridges) {
533 bridge_delete_or_reconfigure_ports(br);
537 /* Finish pushing configuration changes to the ofproto layer:
539 * - Create ofprotos that are missing.
541 * - Add ports that are missing. */
542 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
546 error = ofproto_create(br->name, br->type, &br->ofproto);
548 VLOG_ERR("failed to create bridge %s: %s", br->name,
549 ovs_strerror(error));
550 shash_destroy(&br->wanted_ports);
555 HMAP_FOR_EACH (br, node, &all_bridges) {
556 bridge_add_ports(br, &br->wanted_ports);
557 shash_destroy(&br->wanted_ports);
560 reconfigure_system_stats(ovs_cfg);
562 /* Complete the configuration. */
563 sflow_bridge_number = 0;
564 collect_in_band_managers(ovs_cfg, &managers, &n_managers);
565 HMAP_FOR_EACH (br, node, &all_bridges) {
568 /* We need the datapath ID early to allow LACP ports to use it as the
569 * default system ID. */
570 bridge_configure_datapath_id(br);
572 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
575 port_configure(port);
577 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
578 iface_configure_cfm(iface);
579 iface_configure_qos(iface, port->cfg->qos);
580 iface_set_mac(iface);
581 ofproto_port_set_bfd(br->ofproto, iface->ofp_port,
585 bridge_configure_mirrors(br);
586 bridge_configure_forward_bpdu(br);
587 bridge_configure_mac_table(br);
588 bridge_configure_remotes(br, managers, n_managers);
589 bridge_configure_netflow(br);
590 bridge_configure_sflow(br, &sflow_bridge_number);
591 bridge_configure_ipfix(br);
592 bridge_configure_stp(br);
593 bridge_configure_tables(br);
594 bridge_configure_dp_desc(br);
596 if (smap_get(&br->cfg->other_config, "flow-eviction-threshold")) {
597 /* XXX: Remove this warning message eventually. */
598 VLOG_WARN_ONCE("As of June 2013, flow-eviction-threshold has been"
599 " moved to the Open_vSwitch table. Ignoring its"
600 " setting in the bridge table.");
606 /* Delete ofprotos which aren't configured or have the wrong type. Create
607 * ofprotos which don't exist but need to. */
609 bridge_delete_ofprotos(void)
616 /* Delete ofprotos with no bridge or with the wrong type. */
619 ofproto_enumerate_types(&types);
620 SSET_FOR_EACH (type, &types) {
623 ofproto_enumerate_names(type, &names);
624 SSET_FOR_EACH (name, &names) {
625 br = bridge_lookup(name);
626 if (!br || strcmp(type, br->type)) {
627 ofproto_delete(name, type);
631 sset_destroy(&names);
632 sset_destroy(&types);
636 add_ofp_port(ofp_port_t port, ofp_port_t *ports, size_t *n, size_t *allocated)
638 if (*n >= *allocated) {
639 ports = x2nrealloc(ports, allocated, sizeof *ports);
641 ports[(*n)++] = port;
646 bridge_delete_or_reconfigure_ports(struct bridge *br)
648 struct ofproto_port ofproto_port;
649 struct ofproto_port_dump dump;
651 /* List of "ofp_port"s to delete. We make a list instead of deleting them
652 * right away because ofproto implementations aren't necessarily able to
653 * iterate through a changing list of ports in an entirely robust way. */
661 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
662 ofp_port_t requested_ofp_port;
665 iface = iface_lookup(br, ofproto_port.name);
667 /* No such iface is configured, so we should delete this
670 * As a corner case exception, keep the port if it's a bond fake
672 if (bridge_has_bond_fake_iface(br, ofproto_port.name)
673 && !strcmp(ofproto_port.type, "internal")) {
679 if (strcmp(ofproto_port.type, iface->type)
680 || netdev_set_config(iface->netdev, &iface->cfg->options)) {
681 /* The interface is the wrong type or can't be configured.
686 /* If the requested OpenFlow port for 'iface' changed, and it's not
687 * already the correct port, then we might want to temporarily delete
688 * this interface, so we can add it back again with the new OpenFlow
690 requested_ofp_port = iface_get_requested_ofp_port(iface->cfg);
691 if (iface->ofp_port != OFPP_LOCAL &&
692 requested_ofp_port != OFPP_NONE &&
693 requested_ofp_port != iface->ofp_port) {
694 ofp_port_t victim_request;
695 struct iface *victim;
697 /* Check for an existing OpenFlow port currently occupying
698 * 'iface''s requested port number. If there isn't one, then
699 * delete this port. Otherwise we need to consider further. */
700 victim = iface_from_ofp_port(br, requested_ofp_port);
705 /* 'victim' is a port currently using 'iface''s requested port
706 * number. Unless 'victim' specifically requested that port
707 * number, too, then we can delete both 'iface' and 'victim'
708 * temporarily. (We'll add both of them back again later with new
709 * OpenFlow port numbers.)
711 * If 'victim' did request port number 'requested_ofp_port', just
712 * like 'iface', then that's a configuration inconsistency that we
713 * can't resolve. We might as well let it keep its current port
715 victim_request = iface_get_requested_ofp_port(victim->cfg);
716 if (victim_request != requested_ofp_port) {
717 del = add_ofp_port(victim->ofp_port, del, &n, &allocated);
718 iface_destroy(victim);
727 iface_destroy(iface);
728 del = add_ofp_port(ofproto_port.ofp_port, del, &n, &allocated);
731 for (i = 0; i < n; i++) {
732 ofproto_port_del(br->ofproto, del[i]);
738 bridge_add_ports__(struct bridge *br, const struct shash *wanted_ports,
739 bool with_requested_port)
741 struct shash_node *port_node;
743 SHASH_FOR_EACH (port_node, wanted_ports) {
744 const struct ovsrec_port *port_cfg = port_node->data;
747 for (i = 0; i < port_cfg->n_interfaces; i++) {
748 const struct ovsrec_interface *iface_cfg = port_cfg->interfaces[i];
749 ofp_port_t requested_ofp_port;
751 requested_ofp_port = iface_get_requested_ofp_port(iface_cfg);
752 if ((requested_ofp_port != OFPP_NONE) == with_requested_port) {
753 struct iface *iface = iface_lookup(br, iface_cfg->name);
756 iface_create(br, iface_cfg, port_cfg);
764 bridge_add_ports(struct bridge *br, const struct shash *wanted_ports)
766 /* First add interfaces that request a particular port number. */
767 bridge_add_ports__(br, wanted_ports, true);
769 /* Then add interfaces that want automatic port number assignment.
770 * We add these afterward to avoid accidentally taking a specifically
771 * requested port number. */
772 bridge_add_ports__(br, wanted_ports, false);
776 port_configure(struct port *port)
778 const struct ovsrec_port *cfg = port->cfg;
779 struct bond_settings bond_settings;
780 struct lacp_settings lacp_settings;
781 struct ofproto_bundle_settings s;
784 if (cfg->vlan_mode && !strcmp(cfg->vlan_mode, "splinter")) {
785 configure_splinter_port(port);
794 s.slaves = xmalloc(list_size(&port->ifaces) * sizeof *s.slaves);
795 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
796 s.slaves[s.n_slaves++] = iface->ofp_port;
801 if (cfg->tag && *cfg->tag >= 0 && *cfg->tag <= 4095) {
805 /* Get VLAN trunks. */
808 s.trunks = vlan_bitmap_from_array(cfg->trunks, cfg->n_trunks);
812 if (cfg->vlan_mode) {
813 if (!strcmp(cfg->vlan_mode, "access")) {
814 s.vlan_mode = PORT_VLAN_ACCESS;
815 } else if (!strcmp(cfg->vlan_mode, "trunk")) {
816 s.vlan_mode = PORT_VLAN_TRUNK;
817 } else if (!strcmp(cfg->vlan_mode, "native-tagged")) {
818 s.vlan_mode = PORT_VLAN_NATIVE_TAGGED;
819 } else if (!strcmp(cfg->vlan_mode, "native-untagged")) {
820 s.vlan_mode = PORT_VLAN_NATIVE_UNTAGGED;
822 /* This "can't happen" because ovsdb-server should prevent it. */
823 VLOG_ERR("unknown VLAN mode %s", cfg->vlan_mode);
824 s.vlan_mode = PORT_VLAN_TRUNK;
828 s.vlan_mode = PORT_VLAN_ACCESS;
830 VLOG_ERR("port %s: ignoring trunks in favor of implicit vlan",
834 s.vlan_mode = PORT_VLAN_TRUNK;
837 s.use_priority_tags = smap_get_bool(&cfg->other_config, "priority-tags",
840 /* Get LACP settings. */
841 s.lacp = port_configure_lacp(port, &lacp_settings);
845 s.lacp_slaves = xmalloc(s.n_slaves * sizeof *s.lacp_slaves);
846 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
847 iface_configure_lacp(iface, &s.lacp_slaves[i++]);
850 s.lacp_slaves = NULL;
853 /* Get bond settings. */
854 if (s.n_slaves > 1) {
855 s.bond = &bond_settings;
856 port_configure_bond(port, &bond_settings);
859 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
860 netdev_set_miimon_interval(iface->netdev, 0);
865 ofproto_bundle_register(port->bridge->ofproto, port, &s);
874 bridge_configure_flow_miss_model(const char *opt)
876 enum ofproto_flow_miss_model model = OFPROTO_HANDLE_MISS_AUTO;
879 if (strcmp(opt, "with-facets")) {
880 model = OFPROTO_HANDLE_MISS_WITH_FACETS;
881 } else if (strcmp(opt, "without-facets")) {
882 model = OFPROTO_HANDLE_MISS_WITHOUT_FACETS;
886 ofproto_set_flow_miss_model(model);
889 /* Pick local port hardware address and datapath ID for 'br'. */
891 bridge_configure_datapath_id(struct bridge *br)
893 uint8_t ea[ETH_ADDR_LEN];
895 struct iface *local_iface;
896 struct iface *hw_addr_iface;
899 bridge_pick_local_hw_addr(br, ea, &hw_addr_iface);
900 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
902 int error = netdev_set_etheraddr(local_iface->netdev, ea);
904 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
905 VLOG_ERR_RL(&rl, "bridge %s: failed to set bridge "
906 "Ethernet address: %s",
907 br->name, ovs_strerror(error));
910 memcpy(br->ea, ea, ETH_ADDR_LEN);
912 dpid = bridge_pick_datapath_id(br, ea, hw_addr_iface);
913 if (dpid != ofproto_get_datapath_id(br->ofproto)) {
914 VLOG_INFO("bridge %s: using datapath ID %016"PRIx64, br->name, dpid);
915 ofproto_set_datapath_id(br->ofproto, dpid);
918 dpid_string = xasprintf("%016"PRIx64, dpid);
919 ovsrec_bridge_set_datapath_id(br->cfg, dpid_string);
923 /* Returns a bitmap of "enum ofputil_protocol"s that are allowed for use with
926 bridge_get_allowed_versions(struct bridge *br)
928 if (!br->cfg->n_protocols)
931 return ofputil_versions_from_strings(br->cfg->protocols,
932 br->cfg->n_protocols);
935 /* Set NetFlow configuration on 'br'. */
937 bridge_configure_netflow(struct bridge *br)
939 struct ovsrec_netflow *cfg = br->cfg->netflow;
940 struct netflow_options opts;
943 ofproto_set_netflow(br->ofproto, NULL);
947 memset(&opts, 0, sizeof opts);
949 /* Get default NetFlow configuration from datapath.
950 * Apply overrides from 'cfg'. */
951 ofproto_get_netflow_ids(br->ofproto, &opts.engine_type, &opts.engine_id);
952 if (cfg->engine_type) {
953 opts.engine_type = *cfg->engine_type;
955 if (cfg->engine_id) {
956 opts.engine_id = *cfg->engine_id;
959 /* Configure active timeout interval. */
960 opts.active_timeout = cfg->active_timeout;
961 if (!opts.active_timeout) {
962 opts.active_timeout = -1;
963 } else if (opts.active_timeout < 0) {
964 VLOG_WARN("bridge %s: active timeout interval set to negative "
965 "value, using default instead (%d seconds)", br->name,
966 NF_ACTIVE_TIMEOUT_DEFAULT);
967 opts.active_timeout = -1;
970 /* Add engine ID to interface number to disambiguate bridgs? */
971 opts.add_id_to_iface = cfg->add_id_to_interface;
972 if (opts.add_id_to_iface) {
973 if (opts.engine_id > 0x7f) {
974 VLOG_WARN("bridge %s: NetFlow port mangling may conflict with "
975 "another vswitch, choose an engine id less than 128",
978 if (hmap_count(&br->ports) > 508) {
979 VLOG_WARN("bridge %s: NetFlow port mangling will conflict with "
980 "another port when more than 508 ports are used",
986 sset_init(&opts.collectors);
987 sset_add_array(&opts.collectors, cfg->targets, cfg->n_targets);
990 if (ofproto_set_netflow(br->ofproto, &opts)) {
991 VLOG_ERR("bridge %s: problem setting netflow collectors", br->name);
993 sset_destroy(&opts.collectors);
996 /* Set sFlow configuration on 'br'. */
998 bridge_configure_sflow(struct bridge *br, int *sflow_bridge_number)
1000 const struct ovsrec_sflow *cfg = br->cfg->sflow;
1001 struct ovsrec_controller **controllers;
1002 struct ofproto_sflow_options oso;
1003 size_t n_controllers;
1007 ofproto_set_sflow(br->ofproto, NULL);
1011 memset(&oso, 0, sizeof oso);
1013 sset_init(&oso.targets);
1014 sset_add_array(&oso.targets, cfg->targets, cfg->n_targets);
1016 oso.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
1017 if (cfg->sampling) {
1018 oso.sampling_rate = *cfg->sampling;
1021 oso.polling_interval = SFL_DEFAULT_POLLING_INTERVAL;
1023 oso.polling_interval = *cfg->polling;
1026 oso.header_len = SFL_DEFAULT_HEADER_SIZE;
1028 oso.header_len = *cfg->header;
1031 oso.sub_id = (*sflow_bridge_number)++;
1032 oso.agent_device = cfg->agent;
1034 oso.control_ip = NULL;
1035 n_controllers = bridge_get_controllers(br, &controllers);
1036 for (i = 0; i < n_controllers; i++) {
1037 if (controllers[i]->local_ip) {
1038 oso.control_ip = controllers[i]->local_ip;
1042 ofproto_set_sflow(br->ofproto, &oso);
1044 sset_destroy(&oso.targets);
1047 /* Returns whether a IPFIX row is valid. */
1049 ovsrec_ipfix_is_valid(const struct ovsrec_ipfix *ipfix)
1051 return ipfix && ipfix->n_targets > 0;
1054 /* Returns whether a Flow_Sample_Collector_Set row is valid. */
1056 ovsrec_fscs_is_valid(const struct ovsrec_flow_sample_collector_set *fscs,
1057 const struct bridge *br)
1059 return ovsrec_ipfix_is_valid(fscs->ipfix) && fscs->bridge == br->cfg;
1062 /* Set IPFIX configuration on 'br'. */
1064 bridge_configure_ipfix(struct bridge *br)
1066 const struct ovsrec_ipfix *be_cfg = br->cfg->ipfix;
1067 bool valid_be_cfg = ovsrec_ipfix_is_valid(be_cfg);
1068 const struct ovsrec_flow_sample_collector_set *fe_cfg;
1069 struct ofproto_ipfix_bridge_exporter_options be_opts;
1070 struct ofproto_ipfix_flow_exporter_options *fe_opts = NULL;
1071 size_t n_fe_opts = 0;
1073 OVSREC_FLOW_SAMPLE_COLLECTOR_SET_FOR_EACH(fe_cfg, idl) {
1074 if (ovsrec_fscs_is_valid(fe_cfg, br)) {
1079 if (!valid_be_cfg && n_fe_opts == 0) {
1080 ofproto_set_ipfix(br->ofproto, NULL, NULL, 0);
1085 memset(&be_opts, 0, sizeof be_opts);
1087 sset_init(&be_opts.targets);
1088 sset_add_array(&be_opts.targets, be_cfg->targets, be_cfg->n_targets);
1090 if (be_cfg->sampling) {
1091 be_opts.sampling_rate = *be_cfg->sampling;
1093 be_opts.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
1095 if (be_cfg->obs_domain_id) {
1096 be_opts.obs_domain_id = *be_cfg->obs_domain_id;
1098 if (be_cfg->obs_point_id) {
1099 be_opts.obs_point_id = *be_cfg->obs_point_id;
1101 if (be_cfg->cache_active_timeout) {
1102 be_opts.cache_active_timeout = *be_cfg->cache_active_timeout;
1104 if (be_cfg->cache_max_flows) {
1105 be_opts.cache_max_flows = *be_cfg->cache_max_flows;
1109 if (n_fe_opts > 0) {
1110 struct ofproto_ipfix_flow_exporter_options *opts;
1111 fe_opts = xcalloc(n_fe_opts, sizeof *fe_opts);
1113 OVSREC_FLOW_SAMPLE_COLLECTOR_SET_FOR_EACH(fe_cfg, idl) {
1114 if (ovsrec_fscs_is_valid(fe_cfg, br)) {
1115 opts->collector_set_id = fe_cfg->id;
1116 sset_init(&opts->targets);
1117 sset_add_array(&opts->targets, fe_cfg->ipfix->targets,
1118 fe_cfg->ipfix->n_targets);
1119 opts->cache_active_timeout = fe_cfg->ipfix->cache_active_timeout
1120 ? *fe_cfg->ipfix->cache_active_timeout : 0;
1121 opts->cache_max_flows = fe_cfg->ipfix->cache_max_flows
1122 ? *fe_cfg->ipfix->cache_max_flows : 0;
1128 ofproto_set_ipfix(br->ofproto, valid_be_cfg ? &be_opts : NULL, fe_opts,
1132 sset_destroy(&be_opts.targets);
1135 if (n_fe_opts > 0) {
1136 struct ofproto_ipfix_flow_exporter_options *opts = fe_opts;
1138 for (i = 0; i < n_fe_opts; i++) {
1139 sset_destroy(&opts->targets);
1147 port_configure_stp(const struct ofproto *ofproto, struct port *port,
1148 struct ofproto_port_stp_settings *port_s,
1149 int *port_num_counter, unsigned long *port_num_bitmap)
1151 const char *config_str;
1152 struct iface *iface;
1154 if (!smap_get_bool(&port->cfg->other_config, "stp-enable", true)) {
1155 port_s->enable = false;
1158 port_s->enable = true;
1161 /* STP over bonds is not supported. */
1162 if (!list_is_singleton(&port->ifaces)) {
1163 VLOG_ERR("port %s: cannot enable STP on bonds, disabling",
1165 port_s->enable = false;
1169 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
1171 /* Internal ports shouldn't participate in spanning tree, so
1173 if (!strcmp(iface->type, "internal")) {
1174 VLOG_DBG("port %s: disable STP on internal ports", port->name);
1175 port_s->enable = false;
1179 /* STP on mirror output ports is not supported. */
1180 if (ofproto_is_mirror_output_bundle(ofproto, port)) {
1181 VLOG_DBG("port %s: disable STP on mirror ports", port->name);
1182 port_s->enable = false;
1186 config_str = smap_get(&port->cfg->other_config, "stp-port-num");
1188 unsigned long int port_num = strtoul(config_str, NULL, 0);
1189 int port_idx = port_num - 1;
1191 if (port_num < 1 || port_num > STP_MAX_PORTS) {
1192 VLOG_ERR("port %s: invalid stp-port-num", port->name);
1193 port_s->enable = false;
1197 if (bitmap_is_set(port_num_bitmap, port_idx)) {
1198 VLOG_ERR("port %s: duplicate stp-port-num %lu, disabling",
1199 port->name, port_num);
1200 port_s->enable = false;
1203 bitmap_set1(port_num_bitmap, port_idx);
1204 port_s->port_num = port_idx;
1206 if (*port_num_counter >= STP_MAX_PORTS) {
1207 VLOG_ERR("port %s: too many STP ports, disabling", port->name);
1208 port_s->enable = false;
1212 port_s->port_num = (*port_num_counter)++;
1215 config_str = smap_get(&port->cfg->other_config, "stp-path-cost");
1217 port_s->path_cost = strtoul(config_str, NULL, 10);
1219 enum netdev_features current;
1222 netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
1223 mbps = netdev_features_to_bps(current, 100 * 1000 * 1000) / 1000000;
1224 port_s->path_cost = stp_convert_speed_to_cost(mbps);
1227 config_str = smap_get(&port->cfg->other_config, "stp-port-priority");
1229 port_s->priority = strtoul(config_str, NULL, 0);
1231 port_s->priority = STP_DEFAULT_PORT_PRIORITY;
1235 /* Set spanning tree configuration on 'br'. */
1237 bridge_configure_stp(struct bridge *br)
1239 if (!br->cfg->stp_enable) {
1240 ofproto_set_stp(br->ofproto, NULL);
1242 struct ofproto_stp_settings br_s;
1243 const char *config_str;
1245 int port_num_counter;
1246 unsigned long *port_num_bitmap;
1248 config_str = smap_get(&br->cfg->other_config, "stp-system-id");
1250 uint8_t ea[ETH_ADDR_LEN];
1252 if (eth_addr_from_string(config_str, ea)) {
1253 br_s.system_id = eth_addr_to_uint64(ea);
1255 br_s.system_id = eth_addr_to_uint64(br->ea);
1256 VLOG_ERR("bridge %s: invalid stp-system-id, defaulting "
1257 "to "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(br->ea));
1260 br_s.system_id = eth_addr_to_uint64(br->ea);
1263 config_str = smap_get(&br->cfg->other_config, "stp-priority");
1265 br_s.priority = strtoul(config_str, NULL, 0);
1267 br_s.priority = STP_DEFAULT_BRIDGE_PRIORITY;
1270 config_str = smap_get(&br->cfg->other_config, "stp-hello-time");
1272 br_s.hello_time = strtoul(config_str, NULL, 10) * 1000;
1274 br_s.hello_time = STP_DEFAULT_HELLO_TIME;
1277 config_str = smap_get(&br->cfg->other_config, "stp-max-age");
1279 br_s.max_age = strtoul(config_str, NULL, 10) * 1000;
1281 br_s.max_age = STP_DEFAULT_MAX_AGE;
1284 config_str = smap_get(&br->cfg->other_config, "stp-forward-delay");
1286 br_s.fwd_delay = strtoul(config_str, NULL, 10) * 1000;
1288 br_s.fwd_delay = STP_DEFAULT_FWD_DELAY;
1291 /* Configure STP on the bridge. */
1292 if (ofproto_set_stp(br->ofproto, &br_s)) {
1293 VLOG_ERR("bridge %s: could not enable STP", br->name);
1297 /* Users must either set the port number with the "stp-port-num"
1298 * configuration on all ports or none. If manual configuration
1299 * is not done, then we allocate them sequentially. */
1300 port_num_counter = 0;
1301 port_num_bitmap = bitmap_allocate(STP_MAX_PORTS);
1302 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1303 struct ofproto_port_stp_settings port_s;
1304 struct iface *iface;
1306 port_configure_stp(br->ofproto, port, &port_s,
1307 &port_num_counter, port_num_bitmap);
1309 /* As bonds are not supported, just apply configuration to
1310 * all interfaces. */
1311 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1312 if (ofproto_port_set_stp(br->ofproto, iface->ofp_port,
1314 VLOG_ERR("port %s: could not enable STP", port->name);
1320 if (bitmap_scan(port_num_bitmap, 0, STP_MAX_PORTS) != STP_MAX_PORTS
1321 && port_num_counter) {
1322 VLOG_ERR("bridge %s: must manually configure all STP port "
1323 "IDs or none, disabling", br->name);
1324 ofproto_set_stp(br->ofproto, NULL);
1326 bitmap_free(port_num_bitmap);
1331 bridge_has_bond_fake_iface(const struct bridge *br, const char *name)
1333 const struct port *port = port_lookup(br, name);
1334 return port && port_is_bond_fake_iface(port);
1338 port_is_bond_fake_iface(const struct port *port)
1340 return port->cfg->bond_fake_iface && !list_is_short(&port->ifaces);
1344 add_del_bridges(const struct ovsrec_open_vswitch *cfg)
1346 struct bridge *br, *next;
1347 struct shash new_br;
1350 /* Collect new bridges' names and types. */
1351 shash_init(&new_br);
1352 for (i = 0; i < cfg->n_bridges; i++) {
1353 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1354 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
1356 if (strchr(br_cfg->name, '/')) {
1357 /* Prevent remote ovsdb-server users from accessing arbitrary
1358 * directories, e.g. consider a bridge named "../../../etc/". */
1359 VLOG_WARN_RL(&rl, "ignoring bridge with invalid name \"%s\"",
1361 } else if (!shash_add_once(&new_br, br_cfg->name, br_cfg)) {
1362 VLOG_WARN_RL(&rl, "bridge %s specified twice", br_cfg->name);
1366 /* Get rid of deleted bridges or those whose types have changed.
1367 * Update 'cfg' of bridges that still exist. */
1368 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
1369 br->cfg = shash_find_data(&new_br, br->name);
1370 if (!br->cfg || strcmp(br->type, ofproto_normalize_type(
1371 br->cfg->datapath_type))) {
1376 /* Add new bridges. */
1377 for (i = 0; i < cfg->n_bridges; i++) {
1378 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
1379 struct bridge *br = bridge_lookup(br_cfg->name);
1381 bridge_create(br_cfg);
1385 shash_destroy(&new_br);
1388 /* Configures 'netdev' based on the "options" column in 'iface_cfg'.
1389 * Returns 0 if successful, otherwise a positive errno value. */
1391 iface_set_netdev_config(const struct ovsrec_interface *iface_cfg,
1392 struct netdev *netdev)
1394 return netdev_set_config(netdev, &iface_cfg->options);
1397 /* Opens a network device for 'if_cfg' and configures it. If '*ofp_portp'
1398 * is OFPP_NONE, adds the network device to br->ofproto and stores the OpenFlow
1399 * port number in '*ofp_portp'; otherwise leaves br->ofproto and '*ofp_portp'
1402 * If successful, returns 0 and stores the network device in '*netdevp'. On
1403 * failure, returns a positive errno value and stores NULL in '*netdevp'. */
1405 iface_do_create(const struct bridge *br,
1406 const struct ovsrec_interface *iface_cfg,
1407 const struct ovsrec_port *port_cfg,
1408 ofp_port_t *ofp_portp, struct netdev **netdevp)
1410 struct netdev *netdev = NULL;
1413 if (netdev_is_reserved_name(iface_cfg->name)) {
1414 VLOG_WARN("could not create interface %s, name is reserved",
1420 error = netdev_open(iface_cfg->name,
1421 iface_get_type(iface_cfg, br->cfg), &netdev);
1423 VLOG_WARN("could not open network device %s (%s)",
1424 iface_cfg->name, ovs_strerror(error));
1428 error = iface_set_netdev_config(iface_cfg, netdev);
1433 *ofp_portp = iface_pick_ofport(iface_cfg);
1434 error = ofproto_port_add(br->ofproto, netdev, ofp_portp);
1439 VLOG_INFO("bridge %s: added interface %s on port %d",
1440 br->name, iface_cfg->name, *ofp_portp);
1442 if ((port_cfg->vlan_mode && !strcmp(port_cfg->vlan_mode, "splinter"))
1443 || iface_is_internal(iface_cfg, br->cfg)) {
1444 netdev_turn_flags_on(netdev, NETDEV_UP, NULL);
1452 netdev_close(netdev);
1456 /* Creates a new iface on 'br' based on 'if_cfg'. The new iface has OpenFlow
1457 * port number 'ofp_port'. If ofp_port is OFPP_NONE, an OpenFlow port is
1458 * automatically allocated for the iface. Takes ownership of and
1459 * deallocates 'if_cfg'.
1461 * Return true if an iface is successfully created, false otherwise. */
1463 iface_create(struct bridge *br, const struct ovsrec_interface *iface_cfg,
1464 const struct ovsrec_port *port_cfg)
1466 struct netdev *netdev;
1467 struct iface *iface;
1468 ofp_port_t ofp_port;
1472 /* Do the bits that can fail up front. */
1473 ovs_assert(!iface_lookup(br, iface_cfg->name));
1474 error = iface_do_create(br, iface_cfg, port_cfg, &ofp_port, &netdev);
1476 iface_set_ofport(iface_cfg, OFPP_NONE);
1477 iface_clear_db_record(iface_cfg);
1481 /* Get or create the port structure. */
1482 port = port_lookup(br, port_cfg->name);
1484 port = port_create(br, port_cfg);
1487 /* Create the iface structure. */
1488 iface = xzalloc(sizeof *iface);
1489 list_push_back(&port->ifaces, &iface->port_elem);
1490 hmap_insert(&br->iface_by_name, &iface->name_node,
1491 hash_string(iface_cfg->name, 0));
1493 iface->name = xstrdup(iface_cfg->name);
1494 iface->ofp_port = ofp_port;
1495 iface->netdev = netdev;
1496 iface->type = iface_get_type(iface_cfg, br->cfg);
1497 iface->cfg = iface_cfg;
1498 hmap_insert(&br->ifaces, &iface->ofp_port_node,
1499 hash_ofp_port(ofp_port));
1501 iface_set_ofport(iface->cfg, ofp_port);
1503 /* Populate initial status in database. */
1504 iface_refresh_stats(iface);
1505 iface_refresh_status(iface);
1507 /* Add bond fake iface if necessary. */
1508 if (port_is_bond_fake_iface(port)) {
1509 struct ofproto_port ofproto_port;
1511 if (ofproto_port_query_by_name(br->ofproto, port->name,
1513 struct netdev *netdev;
1516 error = netdev_open(port->name, "internal", &netdev);
1518 ofp_port_t fake_ofp_port = OFPP_NONE;
1519 ofproto_port_add(br->ofproto, netdev, &fake_ofp_port);
1520 netdev_close(netdev);
1522 VLOG_WARN("could not open network device %s (%s)",
1523 port->name, ovs_strerror(error));
1526 /* Already exists, nothing to do. */
1527 ofproto_port_destroy(&ofproto_port);
1534 /* Set forward BPDU option. */
1536 bridge_configure_forward_bpdu(struct bridge *br)
1538 ofproto_set_forward_bpdu(br->ofproto,
1539 smap_get_bool(&br->cfg->other_config,
1544 /* Set MAC learning table configuration for 'br'. */
1546 bridge_configure_mac_table(struct bridge *br)
1548 const char *idle_time_str;
1551 const char *mac_table_size_str;
1554 idle_time_str = smap_get(&br->cfg->other_config, "mac-aging-time");
1555 idle_time = (idle_time_str && atoi(idle_time_str)
1556 ? atoi(idle_time_str)
1557 : MAC_ENTRY_DEFAULT_IDLE_TIME);
1559 mac_table_size_str = smap_get(&br->cfg->other_config, "mac-table-size");
1560 mac_table_size = (mac_table_size_str && atoi(mac_table_size_str)
1561 ? atoi(mac_table_size_str)
1564 ofproto_set_mac_table_config(br->ofproto, idle_time, mac_table_size);
1568 bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
1569 struct iface **hw_addr_iface)
1571 struct hmapx mirror_output_ports;
1574 bool found_addr = false;
1578 *hw_addr_iface = NULL;
1580 /* Did the user request a particular MAC? */
1581 hwaddr = smap_get(&br->cfg->other_config, "hwaddr");
1582 if (hwaddr && eth_addr_from_string(hwaddr, ea)) {
1583 if (eth_addr_is_multicast(ea)) {
1584 VLOG_ERR("bridge %s: cannot set MAC address to multicast "
1585 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1586 } else if (eth_addr_is_zero(ea)) {
1587 VLOG_ERR("bridge %s: cannot set MAC address to zero", br->name);
1593 /* Mirror output ports don't participate in picking the local hardware
1594 * address. ofproto can't help us find out whether a given port is a
1595 * mirror output because we haven't configured mirrors yet, so we need to
1596 * accumulate them ourselves. */
1597 hmapx_init(&mirror_output_ports);
1598 for (i = 0; i < br->cfg->n_mirrors; i++) {
1599 struct ovsrec_mirror *m = br->cfg->mirrors[i];
1600 if (m->output_port) {
1601 hmapx_add(&mirror_output_ports, m->output_port);
1605 /* Otherwise choose the minimum non-local MAC address among all of the
1607 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1608 uint8_t iface_ea[ETH_ADDR_LEN];
1609 struct iface *candidate;
1610 struct iface *iface;
1612 /* Mirror output ports don't participate. */
1613 if (hmapx_contains(&mirror_output_ports, port->cfg)) {
1617 /* Choose the MAC address to represent the port. */
1619 if (port->cfg->mac && eth_addr_from_string(port->cfg->mac, iface_ea)) {
1620 /* Find the interface with this Ethernet address (if any) so that
1621 * we can provide the correct devname to the caller. */
1622 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1623 uint8_t candidate_ea[ETH_ADDR_LEN];
1624 if (!netdev_get_etheraddr(candidate->netdev, candidate_ea)
1625 && eth_addr_equals(iface_ea, candidate_ea)) {
1630 /* Choose the interface whose MAC address will represent the port.
1631 * The Linux kernel bonding code always chooses the MAC address of
1632 * the first slave added to a bond, and the Fedora networking
1633 * scripts always add slaves to a bond in alphabetical order, so
1634 * for compatibility we choose the interface with the name that is
1635 * first in alphabetical order. */
1636 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1637 if (!iface || strcmp(candidate->name, iface->name) < 0) {
1642 /* The local port doesn't count (since we're trying to choose its
1643 * MAC address anyway). */
1644 if (iface->ofp_port == OFPP_LOCAL) {
1649 error = netdev_get_etheraddr(iface->netdev, iface_ea);
1655 /* Compare against our current choice. */
1656 if (!eth_addr_is_multicast(iface_ea) &&
1657 !eth_addr_is_local(iface_ea) &&
1658 !eth_addr_is_reserved(iface_ea) &&
1659 !eth_addr_is_zero(iface_ea) &&
1660 (!found_addr || eth_addr_compare_3way(iface_ea, ea) < 0))
1662 memcpy(ea, iface_ea, ETH_ADDR_LEN);
1663 *hw_addr_iface = iface;
1669 memcpy(ea, br->default_ea, ETH_ADDR_LEN);
1670 *hw_addr_iface = NULL;
1673 hmapx_destroy(&mirror_output_ports);
1676 /* Choose and returns the datapath ID for bridge 'br' given that the bridge
1677 * Ethernet address is 'bridge_ea'. If 'bridge_ea' is the Ethernet address of
1678 * an interface on 'br', then that interface must be passed in as
1679 * 'hw_addr_iface'; if 'bridge_ea' was derived some other way, then
1680 * 'hw_addr_iface' must be passed in as a null pointer. */
1682 bridge_pick_datapath_id(struct bridge *br,
1683 const uint8_t bridge_ea[ETH_ADDR_LEN],
1684 struct iface *hw_addr_iface)
1687 * The procedure for choosing a bridge MAC address will, in the most
1688 * ordinary case, also choose a unique MAC that we can use as a datapath
1689 * ID. In some special cases, though, multiple bridges will end up with
1690 * the same MAC address. This is OK for the bridges, but it will confuse
1691 * the OpenFlow controller, because each datapath needs a unique datapath
1694 * Datapath IDs must be unique. It is also very desirable that they be
1695 * stable from one run to the next, so that policy set on a datapath
1698 const char *datapath_id;
1701 datapath_id = smap_get(&br->cfg->other_config, "datapath-id");
1702 if (datapath_id && dpid_from_string(datapath_id, &dpid)) {
1706 if (!hw_addr_iface) {
1708 * A purely internal bridge, that is, one that has no non-virtual
1709 * network devices on it at all, is difficult because it has no
1710 * natural unique identifier at all.
1712 * When the host is a XenServer, we handle this case by hashing the
1713 * host's UUID with the name of the bridge. Names of bridges are
1714 * persistent across XenServer reboots, although they can be reused if
1715 * an internal network is destroyed and then a new one is later
1716 * created, so this is fairly effective.
1718 * When the host is not a XenServer, we punt by using a random MAC
1719 * address on each run.
1721 const char *host_uuid = xenserver_get_host_uuid();
1723 char *combined = xasprintf("%s,%s", host_uuid, br->name);
1724 dpid = dpid_from_hash(combined, strlen(combined));
1730 return eth_addr_to_uint64(bridge_ea);
1734 dpid_from_hash(const void *data, size_t n)
1736 uint8_t hash[SHA1_DIGEST_SIZE];
1738 BUILD_ASSERT_DECL(sizeof hash >= ETH_ADDR_LEN);
1739 sha1_bytes(data, n, hash);
1740 eth_addr_mark_random(hash);
1741 return eth_addr_to_uint64(hash);
1745 iface_refresh_status(struct iface *iface)
1749 enum netdev_features current;
1753 uint8_t mac[ETH_ADDR_LEN];
1757 if (iface_is_synthetic(iface)) {
1763 if (!netdev_get_status(iface->netdev, &smap)) {
1764 ovsrec_interface_set_status(iface->cfg, &smap);
1766 ovsrec_interface_set_status(iface->cfg, NULL);
1769 smap_destroy(&smap);
1771 error = netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
1772 bps = !error ? netdev_features_to_bps(current, 0) : 0;
1774 ovsrec_interface_set_duplex(iface->cfg,
1775 netdev_features_is_full_duplex(current)
1777 ovsrec_interface_set_link_speed(iface->cfg, &bps, 1);
1779 ovsrec_interface_set_duplex(iface->cfg, NULL);
1780 ovsrec_interface_set_link_speed(iface->cfg, NULL, 0);
1783 error = netdev_get_mtu(iface->netdev, &mtu);
1786 ovsrec_interface_set_mtu(iface->cfg, &mtu_64, 1);
1788 ovsrec_interface_set_mtu(iface->cfg, NULL, 0);
1791 error = netdev_get_etheraddr(iface->netdev, mac);
1793 char mac_string[32];
1795 sprintf(mac_string, ETH_ADDR_FMT, ETH_ADDR_ARGS(mac));
1796 ovsrec_interface_set_mac_in_use(iface->cfg, mac_string);
1798 ovsrec_interface_set_mac_in_use(iface->cfg, NULL);
1801 /* The netdev may return a negative number (such as -EOPNOTSUPP)
1802 * if there is no valid ifindex number. */
1803 ifindex64 = netdev_get_ifindex(iface->netdev);
1804 if (ifindex64 < 0) {
1807 ovsrec_interface_set_ifindex(iface->cfg, &ifindex64, 1);
1810 /* Writes 'iface''s CFM statistics to the database. 'iface' must not be
1813 iface_refresh_cfm_stats(struct iface *iface)
1815 const struct ovsrec_interface *cfg = iface->cfg;
1816 struct ofproto_cfm_status status;
1818 if (!ofproto_port_get_cfm_status(iface->port->bridge->ofproto,
1819 iface->ofp_port, &status)) {
1820 ovsrec_interface_set_cfm_fault(cfg, NULL, 0);
1821 ovsrec_interface_set_cfm_fault_status(cfg, NULL, 0);
1822 ovsrec_interface_set_cfm_remote_opstate(cfg, NULL);
1823 ovsrec_interface_set_cfm_flap_count(cfg, NULL, 0);
1824 ovsrec_interface_set_cfm_health(cfg, NULL, 0);
1825 ovsrec_interface_set_cfm_remote_mpids(cfg, NULL, 0);
1827 const char *reasons[CFM_FAULT_N_REASONS];
1828 int64_t cfm_health = status.health;
1829 int64_t cfm_flap_count = status.flap_count;
1830 bool faulted = status.faults != 0;
1833 ovsrec_interface_set_cfm_fault(cfg, &faulted, 1);
1836 for (i = 0; i < CFM_FAULT_N_REASONS; i++) {
1837 int reason = 1 << i;
1838 if (status.faults & reason) {
1839 reasons[j++] = cfm_fault_reason_to_str(reason);
1842 ovsrec_interface_set_cfm_fault_status(cfg, (char **) reasons, j);
1844 ovsrec_interface_set_cfm_flap_count(cfg, &cfm_flap_count, 1);
1846 if (status.remote_opstate >= 0) {
1847 const char *remote_opstate = status.remote_opstate ? "up" : "down";
1848 ovsrec_interface_set_cfm_remote_opstate(cfg, remote_opstate);
1850 ovsrec_interface_set_cfm_remote_opstate(cfg, NULL);
1853 ovsrec_interface_set_cfm_remote_mpids(cfg,
1854 (const int64_t *)status.rmps,
1856 if (cfm_health >= 0) {
1857 ovsrec_interface_set_cfm_health(cfg, &cfm_health, 1);
1859 ovsrec_interface_set_cfm_health(cfg, NULL, 0);
1867 iface_refresh_stats(struct iface *iface)
1869 #define IFACE_STATS \
1870 IFACE_STAT(rx_packets, "rx_packets") \
1871 IFACE_STAT(tx_packets, "tx_packets") \
1872 IFACE_STAT(rx_bytes, "rx_bytes") \
1873 IFACE_STAT(tx_bytes, "tx_bytes") \
1874 IFACE_STAT(rx_dropped, "rx_dropped") \
1875 IFACE_STAT(tx_dropped, "tx_dropped") \
1876 IFACE_STAT(rx_errors, "rx_errors") \
1877 IFACE_STAT(tx_errors, "tx_errors") \
1878 IFACE_STAT(rx_frame_errors, "rx_frame_err") \
1879 IFACE_STAT(rx_over_errors, "rx_over_err") \
1880 IFACE_STAT(rx_crc_errors, "rx_crc_err") \
1881 IFACE_STAT(collisions, "collisions")
1883 #define IFACE_STAT(MEMBER, NAME) + 1
1884 enum { N_IFACE_STATS = IFACE_STATS };
1886 int64_t values[N_IFACE_STATS];
1887 char *keys[N_IFACE_STATS];
1890 struct netdev_stats stats;
1892 if (iface_is_synthetic(iface)) {
1896 /* Intentionally ignore return value, since errors will set 'stats' to
1897 * all-1s, and we will deal with that correctly below. */
1898 netdev_get_stats(iface->netdev, &stats);
1900 /* Copy statistics into keys[] and values[]. */
1902 #define IFACE_STAT(MEMBER, NAME) \
1903 if (stats.MEMBER != UINT64_MAX) { \
1905 values[n] = stats.MEMBER; \
1910 ovs_assert(n <= N_IFACE_STATS);
1912 ovsrec_interface_set_statistics(iface->cfg, keys, values, n);
1917 br_refresh_stp_status(struct bridge *br)
1919 struct smap smap = SMAP_INITIALIZER(&smap);
1920 struct ofproto *ofproto = br->ofproto;
1921 struct ofproto_stp_status status;
1923 if (ofproto_get_stp_status(ofproto, &status)) {
1927 if (!status.enabled) {
1928 ovsrec_bridge_set_status(br->cfg, NULL);
1932 smap_add_format(&smap, "stp_bridge_id", STP_ID_FMT,
1933 STP_ID_ARGS(status.bridge_id));
1934 smap_add_format(&smap, "stp_designated_root", STP_ID_FMT,
1935 STP_ID_ARGS(status.designated_root));
1936 smap_add_format(&smap, "stp_root_path_cost", "%d", status.root_path_cost);
1938 ovsrec_bridge_set_status(br->cfg, &smap);
1939 smap_destroy(&smap);
1943 port_refresh_stp_status(struct port *port)
1945 struct ofproto *ofproto = port->bridge->ofproto;
1946 struct iface *iface;
1947 struct ofproto_port_stp_status status;
1950 if (port_is_synthetic(port)) {
1954 /* STP doesn't currently support bonds. */
1955 if (!list_is_singleton(&port->ifaces)) {
1956 ovsrec_port_set_status(port->cfg, NULL);
1960 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
1961 if (ofproto_port_get_stp_status(ofproto, iface->ofp_port, &status)) {
1965 if (!status.enabled) {
1966 ovsrec_port_set_status(port->cfg, NULL);
1970 /* Set Status column. */
1972 smap_add_format(&smap, "stp_port_id", STP_PORT_ID_FMT, status.port_id);
1973 smap_add(&smap, "stp_state", stp_state_name(status.state));
1974 smap_add_format(&smap, "stp_sec_in_state", "%u", status.sec_in_state);
1975 smap_add(&smap, "stp_role", stp_role_name(status.role));
1976 ovsrec_port_set_status(port->cfg, &smap);
1977 smap_destroy(&smap);
1981 port_refresh_stp_stats(struct port *port)
1983 struct ofproto *ofproto = port->bridge->ofproto;
1984 struct iface *iface;
1985 struct ofproto_port_stp_stats stats;
1987 int64_t int_values[3];
1989 if (port_is_synthetic(port)) {
1993 /* STP doesn't currently support bonds. */
1994 if (!list_is_singleton(&port->ifaces)) {
1998 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
1999 if (ofproto_port_get_stp_stats(ofproto, iface->ofp_port, &stats)) {
2003 if (!stats.enabled) {
2004 ovsrec_port_set_statistics(port->cfg, NULL, NULL, 0);
2008 /* Set Statistics column. */
2009 keys[0] = "stp_tx_count";
2010 int_values[0] = stats.tx_count;
2011 keys[1] = "stp_rx_count";
2012 int_values[1] = stats.rx_count;
2013 keys[2] = "stp_error_count";
2014 int_values[2] = stats.error_count;
2016 ovsrec_port_set_statistics(port->cfg, keys, int_values,
2017 ARRAY_SIZE(int_values));
2021 enable_system_stats(const struct ovsrec_open_vswitch *cfg)
2023 return smap_get_bool(&cfg->other_config, "enable-statistics", false);
2027 reconfigure_system_stats(const struct ovsrec_open_vswitch *cfg)
2029 bool enable = enable_system_stats(cfg);
2031 system_stats_enable(enable);
2033 ovsrec_open_vswitch_set_statistics(cfg, NULL);
2038 run_system_stats(void)
2040 const struct ovsrec_open_vswitch *cfg = ovsrec_open_vswitch_first(idl);
2043 stats = system_stats_run();
2045 struct ovsdb_idl_txn *txn;
2046 struct ovsdb_datum datum;
2048 txn = ovsdb_idl_txn_create(idl);
2049 ovsdb_datum_from_smap(&datum, stats);
2050 ovsdb_idl_txn_write(&cfg->header_, &ovsrec_open_vswitch_col_statistics,
2052 ovsdb_idl_txn_commit(txn);
2053 ovsdb_idl_txn_destroy(txn);
2059 static inline const char *
2060 ofp12_controller_role_to_str(enum ofp12_controller_role role)
2063 case OFPCR12_ROLE_EQUAL:
2065 case OFPCR12_ROLE_MASTER:
2067 case OFPCR12_ROLE_SLAVE:
2069 case OFPCR12_ROLE_NOCHANGE:
2071 return "*** INVALID ROLE ***";
2076 refresh_controller_status(void)
2080 const struct ovsrec_controller *cfg;
2084 /* Accumulate status for controllers on all bridges. */
2085 HMAP_FOR_EACH (br, node, &all_bridges) {
2086 ofproto_get_ofproto_controller_info(br->ofproto, &info);
2089 /* Update each controller in the database with current status. */
2090 OVSREC_CONTROLLER_FOR_EACH(cfg, idl) {
2091 struct ofproto_controller_info *cinfo =
2092 shash_find_data(&info, cfg->target);
2095 struct smap smap = SMAP_INITIALIZER(&smap);
2096 const char **values = cinfo->pairs.values;
2097 const char **keys = cinfo->pairs.keys;
2100 for (i = 0; i < cinfo->pairs.n; i++) {
2101 smap_add(&smap, keys[i], values[i]);
2104 ovsrec_controller_set_is_connected(cfg, cinfo->is_connected);
2105 ovsrec_controller_set_role(cfg, ofp12_controller_role_to_str(
2107 ovsrec_controller_set_status(cfg, &smap);
2108 smap_destroy(&smap);
2110 ovsrec_controller_set_is_connected(cfg, false);
2111 ovsrec_controller_set_role(cfg, NULL);
2112 ovsrec_controller_set_status(cfg, NULL);
2116 ofproto_free_ofproto_controller_info(&info);
2121 * Some information in the database must be kept as up-to-date as possible to
2122 * allow controllers to respond rapidly to network outages. We call these
2123 * statistics "instant" stats.
2125 * We wish to update these statistics every INSTANT_INTERVAL_MSEC milliseconds,
2126 * assuming that they've changed. The only means we have to determine whether
2127 * they have changed are:
2129 * - Try to commit changes to the database. If nothing changed, then
2130 * ovsdb_idl_txn_commit() returns TXN_UNCHANGED, otherwise some other
2133 * - instant_stats_run() is called late in the run loop, after anything that
2134 * might change any of the instant stats.
2136 * We use these two facts together to avoid waking the process up every
2137 * INSTANT_INTERVAL_MSEC whether there is any change or not.
2140 /* Minimum interval between writing updates to the instant stats to the
2142 #define INSTANT_INTERVAL_MSEC 100
2144 /* Current instant stats database transaction, NULL if there is no ongoing
2146 static struct ovsdb_idl_txn *instant_txn;
2148 /* Next time (in msec on monotonic clock) at which we will update the instant
2150 static long long int instant_next_txn = LLONG_MIN;
2152 /* True if the run loop has run since we last saw that the instant stats were
2153 * unchanged, that is, this is true if we need to wake up at 'instant_next_txn'
2154 * to refresh the instant stats. */
2155 static bool instant_stats_could_have_changed;
2158 instant_stats_run(void)
2160 enum ovsdb_idl_txn_status status;
2162 instant_stats_could_have_changed = true;
2168 if (time_msec() < instant_next_txn) {
2171 instant_next_txn = time_msec() + INSTANT_INTERVAL_MSEC;
2173 seq = seq_read(connectivity_seq_get());
2174 if (seq == connectivity_seqno) {
2177 connectivity_seqno = seq;
2179 instant_txn = ovsdb_idl_txn_create(idl);
2180 HMAP_FOR_EACH (br, node, &all_bridges) {
2181 struct iface *iface;
2184 br_refresh_stp_status(br);
2186 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
2187 port_refresh_stp_status(port);
2190 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
2191 enum netdev_flags flags;
2193 const char *link_state;
2194 int64_t link_resets;
2197 if (iface_is_synthetic(iface)) {
2201 current = ofproto_port_is_lacp_current(br->ofproto,
2205 ovsrec_interface_set_lacp_current(iface->cfg, &bl, 1);
2207 ovsrec_interface_set_lacp_current(iface->cfg, NULL, 0);
2210 error = netdev_get_flags(iface->netdev, &flags);
2212 const char *state = flags & NETDEV_UP ? "up" : "down";
2213 ovsrec_interface_set_admin_state(iface->cfg, state);
2215 ovsrec_interface_set_admin_state(iface->cfg, NULL);
2218 link_state = netdev_get_carrier(iface->netdev) ? "up" : "down";
2219 ovsrec_interface_set_link_state(iface->cfg, link_state);
2221 link_resets = netdev_get_carrier_resets(iface->netdev);
2222 ovsrec_interface_set_link_resets(iface->cfg, &link_resets, 1);
2224 iface_refresh_cfm_stats(iface);
2227 ofproto_port_get_bfd_status(br->ofproto, iface->ofp_port,
2229 ovsrec_interface_set_bfd_status(iface->cfg, &smap);
2230 smap_destroy(&smap);
2235 status = ovsdb_idl_txn_commit(instant_txn);
2236 if (status != TXN_INCOMPLETE) {
2237 ovsdb_idl_txn_destroy(instant_txn);
2240 if (status == TXN_UNCHANGED) {
2241 instant_stats_could_have_changed = false;
2246 instant_stats_wait(void)
2249 ovsdb_idl_txn_wait(instant_txn);
2250 } else if (instant_stats_could_have_changed) {
2251 poll_timer_wait_until(instant_next_txn);
2258 static struct ovsrec_open_vswitch null_cfg;
2259 const struct ovsrec_open_vswitch *cfg;
2263 bool vlan_splinters_changed;
2266 ovsrec_open_vswitch_init(&null_cfg);
2270 if (ovsdb_idl_is_lock_contended(idl)) {
2271 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
2272 struct bridge *br, *next_br;
2274 VLOG_ERR_RL(&rl, "another ovs-vswitchd process is running, "
2275 "disabling this process (pid %ld) until it goes away",
2276 (long int) getpid());
2278 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
2281 /* Since we will not be running system_stats_run() in this process
2282 * with the current situation of multiple ovs-vswitchd daemons,
2283 * disable system stats collection. */
2284 system_stats_enable(false);
2286 } else if (!ovsdb_idl_has_lock(idl)) {
2289 cfg = ovsrec_open_vswitch_first(idl);
2291 /* Initialize the ofproto library. This only needs to run once, but
2292 * it must be done after the configuration is set. If the
2293 * initialization has already occurred, bridge_init_ofproto()
2294 * returns immediately. */
2295 bridge_init_ofproto(cfg);
2297 /* Once the value of flow-restore-wait is false, we no longer should
2298 * check its value from the database. */
2299 if (cfg && ofproto_get_flow_restore_wait()) {
2300 ofproto_set_flow_restore_wait(smap_get_bool(&cfg->other_config,
2301 "flow-restore-wait", false));
2304 /* Let each datapath type do the work that it needs to do. */
2306 ofproto_enumerate_types(&types);
2307 SSET_FOR_EACH (type, &types) {
2308 ofproto_type_run(type);
2310 sset_destroy(&types);
2312 /* Let each bridge do the work that it needs to do. */
2313 HMAP_FOR_EACH (br, node, &all_bridges) {
2314 ofproto_run(br->ofproto);
2317 /* Re-configure SSL. We do this on every trip through the main loop,
2318 * instead of just when the database changes, because the contents of the
2319 * key and certificate files can change without the database changing.
2321 * We do this before bridge_reconfigure() because that function might
2322 * initiate SSL connections and thus requires SSL to be configured. */
2323 if (cfg && cfg->ssl) {
2324 const struct ovsrec_ssl *ssl = cfg->ssl;
2326 stream_ssl_set_key_and_cert(ssl->private_key, ssl->certificate);
2327 stream_ssl_set_ca_cert_file(ssl->ca_cert, ssl->bootstrap_ca_cert);
2330 /* If VLAN splinters are in use, then we need to reconfigure if VLAN
2331 * usage has changed. */
2332 vlan_splinters_changed = false;
2333 if (vlan_splinters_enabled_anywhere) {
2334 HMAP_FOR_EACH (br, node, &all_bridges) {
2335 if (ofproto_has_vlan_usage_changed(br->ofproto)) {
2336 vlan_splinters_changed = true;
2342 if (ovsdb_idl_get_seqno(idl) != idl_seqno || vlan_splinters_changed) {
2343 struct ovsdb_idl_txn *txn;
2345 idl_seqno = ovsdb_idl_get_seqno(idl);
2346 txn = ovsdb_idl_txn_create(idl);
2347 bridge_reconfigure(cfg ? cfg : &null_cfg);
2350 ovsrec_open_vswitch_set_cur_cfg(cfg, cfg->next_cfg);
2353 /* If we are completing our initial configuration for this run
2354 * of ovs-vswitchd, then keep the transaction around to monitor
2355 * it for completion. */
2356 if (initial_config_done) {
2357 ovsdb_idl_txn_commit(txn);
2358 ovsdb_idl_txn_destroy(txn);
2360 initial_config_done = true;
2361 daemonize_txn = txn;
2365 if (daemonize_txn) {
2366 enum ovsdb_idl_txn_status status = ovsdb_idl_txn_commit(daemonize_txn);
2367 if (status != TXN_INCOMPLETE) {
2368 ovsdb_idl_txn_destroy(daemonize_txn);
2369 daemonize_txn = NULL;
2371 /* ovs-vswitchd has completed initialization, so allow the
2372 * process that forked us to exit successfully. */
2373 daemonize_complete();
2375 vlog_enable_async();
2377 VLOG_INFO_ONCE("%s (Open vSwitch) %s", program_name, VERSION);
2381 /* Refresh interface and mirror stats if necessary. */
2382 if (time_msec() >= iface_stats_timer) {
2384 struct ovsdb_idl_txn *txn;
2386 txn = ovsdb_idl_txn_create(idl);
2387 HMAP_FOR_EACH (br, node, &all_bridges) {
2391 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
2392 struct iface *iface;
2394 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
2395 iface_refresh_stats(iface);
2396 iface_refresh_status(iface);
2399 port_refresh_stp_stats(port);
2402 HMAP_FOR_EACH (m, hmap_node, &br->mirrors) {
2403 mirror_refresh_stats(m);
2407 refresh_controller_status();
2408 ovsdb_idl_txn_commit(txn);
2409 ovsdb_idl_txn_destroy(txn); /* XXX */
2412 iface_stats_timer = time_msec() + IFACE_STATS_INTERVAL;
2416 instant_stats_run();
2425 ovsdb_idl_wait(idl);
2426 if (daemonize_txn) {
2427 ovsdb_idl_txn_wait(daemonize_txn);
2431 ofproto_enumerate_types(&types);
2432 SSET_FOR_EACH (type, &types) {
2433 ofproto_type_wait(type);
2435 sset_destroy(&types);
2437 if (!hmap_is_empty(&all_bridges)) {
2440 HMAP_FOR_EACH (br, node, &all_bridges) {
2441 ofproto_wait(br->ofproto);
2443 poll_timer_wait_until(iface_stats_timer);
2446 system_stats_wait();
2447 instant_stats_wait();
2450 /* Adds some memory usage statistics for bridges into 'usage', for use with
2451 * memory_report(). */
2453 bridge_get_memory_usage(struct simap *usage)
2460 ofproto_enumerate_types(&types);
2461 SSET_FOR_EACH (type, &types) {
2462 ofproto_type_get_memory_usage(type, usage);
2464 sset_destroy(&types);
2466 HMAP_FOR_EACH (br, node, &all_bridges) {
2467 ofproto_get_memory_usage(br->ofproto, usage);
2471 /* QoS unixctl user interface functions. */
2473 struct qos_unixctl_show_cbdata {
2475 struct iface *iface;
2479 qos_unixctl_show_queue(unsigned int queue_id,
2480 const struct smap *details,
2481 struct iface *iface,
2484 struct netdev_queue_stats stats;
2485 struct smap_node *node;
2488 ds_put_cstr(ds, "\n");
2490 ds_put_format(ds, "Queue %u:\n", queue_id);
2492 ds_put_cstr(ds, "Default:\n");
2495 SMAP_FOR_EACH (node, details) {
2496 ds_put_format(ds, "\t%s: %s\n", node->key, node->value);
2499 error = netdev_get_queue_stats(iface->netdev, queue_id, &stats);
2501 if (stats.tx_packets != UINT64_MAX) {
2502 ds_put_format(ds, "\ttx_packets: %"PRIu64"\n", stats.tx_packets);
2505 if (stats.tx_bytes != UINT64_MAX) {
2506 ds_put_format(ds, "\ttx_bytes: %"PRIu64"\n", stats.tx_bytes);
2509 if (stats.tx_errors != UINT64_MAX) {
2510 ds_put_format(ds, "\ttx_errors: %"PRIu64"\n", stats.tx_errors);
2513 ds_put_format(ds, "\tFailed to get statistics for queue %u: %s",
2514 queue_id, ovs_strerror(error));
2519 qos_unixctl_show(struct unixctl_conn *conn, int argc OVS_UNUSED,
2520 const char *argv[], void *aux OVS_UNUSED)
2522 struct ds ds = DS_EMPTY_INITIALIZER;
2523 struct smap smap = SMAP_INITIALIZER(&smap);
2524 struct iface *iface;
2526 struct smap_node *node;
2528 iface = iface_find(argv[1]);
2530 unixctl_command_reply_error(conn, "no such interface");
2534 netdev_get_qos(iface->netdev, &type, &smap);
2536 if (*type != '\0') {
2537 struct netdev_queue_dump dump;
2538 struct smap details;
2539 unsigned int queue_id;
2541 ds_put_format(&ds, "QoS: %s %s\n", iface->name, type);
2543 SMAP_FOR_EACH (node, &smap) {
2544 ds_put_format(&ds, "%s: %s\n", node->key, node->value);
2547 smap_init(&details);
2548 NETDEV_QUEUE_FOR_EACH (&queue_id, &details, &dump, iface->netdev) {
2549 qos_unixctl_show_queue(queue_id, &details, iface, &ds);
2551 smap_destroy(&details);
2553 unixctl_command_reply(conn, ds_cstr(&ds));
2555 ds_put_format(&ds, "QoS not configured on %s\n", iface->name);
2556 unixctl_command_reply_error(conn, ds_cstr(&ds));
2559 smap_destroy(&smap);
2563 /* Bridge reconfiguration functions. */
2565 bridge_create(const struct ovsrec_bridge *br_cfg)
2569 ovs_assert(!bridge_lookup(br_cfg->name));
2570 br = xzalloc(sizeof *br);
2572 br->name = xstrdup(br_cfg->name);
2573 br->type = xstrdup(ofproto_normalize_type(br_cfg->datapath_type));
2576 /* Derive the default Ethernet address from the bridge's UUID. This should
2577 * be unique and it will be stable between ovs-vswitchd runs. */
2578 memcpy(br->default_ea, &br_cfg->header_.uuid, ETH_ADDR_LEN);
2579 eth_addr_mark_random(br->default_ea);
2581 hmap_init(&br->ports);
2582 hmap_init(&br->ifaces);
2583 hmap_init(&br->iface_by_name);
2584 hmap_init(&br->mirrors);
2586 hmap_insert(&all_bridges, &br->node, hash_string(br->name, 0));
2590 bridge_destroy(struct bridge *br)
2593 struct mirror *mirror, *next_mirror;
2594 struct port *port, *next_port;
2596 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
2599 HMAP_FOR_EACH_SAFE (mirror, next_mirror, hmap_node, &br->mirrors) {
2600 mirror_destroy(mirror);
2603 hmap_remove(&all_bridges, &br->node);
2604 ofproto_destroy(br->ofproto);
2605 hmap_destroy(&br->ifaces);
2606 hmap_destroy(&br->ports);
2607 hmap_destroy(&br->iface_by_name);
2608 hmap_destroy(&br->mirrors);
2615 static struct bridge *
2616 bridge_lookup(const char *name)
2620 HMAP_FOR_EACH_WITH_HASH (br, node, hash_string(name, 0), &all_bridges) {
2621 if (!strcmp(br->name, name)) {
2628 /* Handle requests for a listing of all flows known by the OpenFlow
2629 * stack, including those normally hidden. */
2631 bridge_unixctl_dump_flows(struct unixctl_conn *conn, int argc OVS_UNUSED,
2632 const char *argv[], void *aux OVS_UNUSED)
2637 br = bridge_lookup(argv[1]);
2639 unixctl_command_reply_error(conn, "Unknown bridge");
2644 ofproto_get_all_flows(br->ofproto, &results);
2646 unixctl_command_reply(conn, ds_cstr(&results));
2647 ds_destroy(&results);
2650 /* "bridge/reconnect [BRIDGE]": makes BRIDGE drop all of its controller
2651 * connections and reconnect. If BRIDGE is not specified, then all bridges
2652 * drop their controller connections and reconnect. */
2654 bridge_unixctl_reconnect(struct unixctl_conn *conn, int argc,
2655 const char *argv[], void *aux OVS_UNUSED)
2659 br = bridge_lookup(argv[1]);
2661 unixctl_command_reply_error(conn, "Unknown bridge");
2664 ofproto_reconnect_controllers(br->ofproto);
2666 HMAP_FOR_EACH (br, node, &all_bridges) {
2667 ofproto_reconnect_controllers(br->ofproto);
2670 unixctl_command_reply(conn, NULL);
2674 bridge_get_controllers(const struct bridge *br,
2675 struct ovsrec_controller ***controllersp)
2677 struct ovsrec_controller **controllers;
2678 size_t n_controllers;
2680 controllers = br->cfg->controller;
2681 n_controllers = br->cfg->n_controller;
2683 if (n_controllers == 1 && !strcmp(controllers[0]->target, "none")) {
2689 *controllersp = controllers;
2691 return n_controllers;
2695 bridge_collect_wanted_ports(struct bridge *br,
2696 const unsigned long int *splinter_vlans,
2697 struct shash *wanted_ports)
2701 shash_init(wanted_ports);
2703 for (i = 0; i < br->cfg->n_ports; i++) {
2704 const char *name = br->cfg->ports[i]->name;
2705 if (!shash_add_once(wanted_ports, name, br->cfg->ports[i])) {
2706 VLOG_WARN("bridge %s: %s specified twice as bridge port",
2710 if (bridge_get_controllers(br, NULL)
2711 && !shash_find(wanted_ports, br->name)) {
2712 VLOG_WARN("bridge %s: no port named %s, synthesizing one",
2713 br->name, br->name);
2715 ovsrec_interface_init(&br->synth_local_iface);
2716 ovsrec_port_init(&br->synth_local_port);
2718 br->synth_local_port.interfaces = &br->synth_local_ifacep;
2719 br->synth_local_port.n_interfaces = 1;
2720 br->synth_local_port.name = br->name;
2722 br->synth_local_iface.name = br->name;
2723 br->synth_local_iface.type = "internal";
2725 br->synth_local_ifacep = &br->synth_local_iface;
2727 shash_add(wanted_ports, br->name, &br->synth_local_port);
2730 if (splinter_vlans) {
2731 add_vlan_splinter_ports(br, splinter_vlans, wanted_ports);
2735 /* Deletes "struct port"s and "struct iface"s under 'br' which aren't
2736 * consistent with 'br->cfg'. Updates 'br->if_cfg_queue' with interfaces which
2737 * 'br' needs to complete its configuration. */
2739 bridge_del_ports(struct bridge *br, const struct shash *wanted_ports)
2741 struct shash_node *port_node;
2742 struct port *port, *next;
2744 /* Get rid of deleted ports.
2745 * Get rid of deleted interfaces on ports that still exist. */
2746 HMAP_FOR_EACH_SAFE (port, next, hmap_node, &br->ports) {
2747 port->cfg = shash_find_data(wanted_ports, port->name);
2751 port_del_ifaces(port);
2755 /* Update iface->cfg and iface->type in interfaces that still exist. */
2756 SHASH_FOR_EACH (port_node, wanted_ports) {
2757 const struct ovsrec_port *port = port_node->data;
2760 for (i = 0; i < port->n_interfaces; i++) {
2761 const struct ovsrec_interface *cfg = port->interfaces[i];
2762 struct iface *iface = iface_lookup(br, cfg->name);
2763 const char *type = iface_get_type(cfg, br->cfg);
2768 } else if (!strcmp(type, "null")) {
2769 VLOG_WARN_ONCE("%s: The null interface type is deprecated and"
2770 " may be removed in February 2013. Please email"
2771 " dev@openvswitch.org with concerns.",
2774 /* We will add new interfaces later. */
2780 /* Initializes 'oc' appropriately as a management service controller for
2783 * The caller must free oc->target when it is no longer needed. */
2785 bridge_ofproto_controller_for_mgmt(const struct bridge *br,
2786 struct ofproto_controller *oc)
2788 oc->target = xasprintf("punix:%s/%s.mgmt", ovs_rundir(), br->name);
2789 oc->max_backoff = 0;
2790 oc->probe_interval = 60;
2791 oc->band = OFPROTO_OUT_OF_BAND;
2793 oc->burst_limit = 0;
2794 oc->enable_async_msgs = true;
2797 /* Converts ovsrec_controller 'c' into an ofproto_controller in 'oc'. */
2799 bridge_ofproto_controller_from_ovsrec(const struct ovsrec_controller *c,
2800 struct ofproto_controller *oc)
2804 oc->target = c->target;
2805 oc->max_backoff = c->max_backoff ? *c->max_backoff / 1000 : 8;
2806 oc->probe_interval = c->inactivity_probe ? *c->inactivity_probe / 1000 : 5;
2807 oc->band = (!c->connection_mode || !strcmp(c->connection_mode, "in-band")
2808 ? OFPROTO_IN_BAND : OFPROTO_OUT_OF_BAND);
2809 oc->rate_limit = c->controller_rate_limit ? *c->controller_rate_limit : 0;
2810 oc->burst_limit = (c->controller_burst_limit
2811 ? *c->controller_burst_limit : 0);
2812 oc->enable_async_msgs = (!c->enable_async_messages
2813 || *c->enable_async_messages);
2814 dscp = smap_get_int(&c->other_config, "dscp", DSCP_DEFAULT);
2815 if (dscp < 0 || dscp > 63) {
2816 dscp = DSCP_DEFAULT;
2821 /* Configures the IP stack for 'br''s local interface properly according to the
2822 * configuration in 'c'. */
2824 bridge_configure_local_iface_netdev(struct bridge *br,
2825 struct ovsrec_controller *c)
2827 struct netdev *netdev;
2828 struct in_addr mask, gateway;
2830 struct iface *local_iface;
2833 /* If there's no local interface or no IP address, give up. */
2834 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
2835 if (!local_iface || !c->local_ip || !inet_aton(c->local_ip, &ip)) {
2839 /* Bring up the local interface. */
2840 netdev = local_iface->netdev;
2841 netdev_turn_flags_on(netdev, NETDEV_UP, NULL);
2843 /* Configure the IP address and netmask. */
2844 if (!c->local_netmask
2845 || !inet_aton(c->local_netmask, &mask)
2847 mask.s_addr = guess_netmask(ip.s_addr);
2849 if (!netdev_set_in4(netdev, ip, mask)) {
2850 VLOG_INFO("bridge %s: configured IP address "IP_FMT", netmask "IP_FMT,
2851 br->name, IP_ARGS(ip.s_addr), IP_ARGS(mask.s_addr));
2854 /* Configure the default gateway. */
2855 if (c->local_gateway
2856 && inet_aton(c->local_gateway, &gateway)
2857 && gateway.s_addr) {
2858 if (!netdev_add_router(netdev, gateway)) {
2859 VLOG_INFO("bridge %s: configured gateway "IP_FMT,
2860 br->name, IP_ARGS(gateway.s_addr));
2865 /* Returns true if 'a' and 'b' are the same except that any number of slashes
2866 * in either string are treated as equal to any number of slashes in the other,
2867 * e.g. "x///y" is equal to "x/y".
2869 * Also, if 'b_stoplen' bytes from 'b' are found to be equal to corresponding
2870 * bytes from 'a', the function considers this success. Specify 'b_stoplen' as
2871 * SIZE_MAX to compare all of 'a' to all of 'b' rather than just a prefix of
2872 * 'b' against a prefix of 'a'.
2875 equal_pathnames(const char *a, const char *b, size_t b_stoplen)
2877 const char *b_start = b;
2879 if (b - b_start >= b_stoplen) {
2881 } else if (*a != *b) {
2883 } else if (*a == '/') {
2884 a += strspn(a, "/");
2885 b += strspn(b, "/");
2886 } else if (*a == '\0') {
2896 bridge_configure_remotes(struct bridge *br,
2897 const struct sockaddr_in *managers, size_t n_managers)
2899 bool disable_in_band;
2901 struct ovsrec_controller **controllers;
2902 size_t n_controllers;
2904 enum ofproto_fail_mode fail_mode;
2906 struct ofproto_controller *ocs;
2910 /* Check if we should disable in-band control on this bridge. */
2911 disable_in_band = smap_get_bool(&br->cfg->other_config, "disable-in-band",
2914 /* Set OpenFlow queue ID for in-band control. */
2915 ofproto_set_in_band_queue(br->ofproto,
2916 smap_get_int(&br->cfg->other_config,
2917 "in-band-queue", -1));
2919 if (disable_in_band) {
2920 ofproto_set_extra_in_band_remotes(br->ofproto, NULL, 0);
2922 ofproto_set_extra_in_band_remotes(br->ofproto, managers, n_managers);
2925 n_controllers = bridge_get_controllers(br, &controllers);
2927 ocs = xmalloc((n_controllers + 1) * sizeof *ocs);
2930 bridge_ofproto_controller_for_mgmt(br, &ocs[n_ocs++]);
2931 for (i = 0; i < n_controllers; i++) {
2932 struct ovsrec_controller *c = controllers[i];
2934 if (!strncmp(c->target, "punix:", 6)
2935 || !strncmp(c->target, "unix:", 5)) {
2936 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2939 if (!strncmp(c->target, "unix:", 5)) {
2940 /* Connect to a listening socket */
2941 whitelist = xasprintf("unix:%s/", ovs_rundir());
2942 if (strchr(c->target, '/') &&
2943 !equal_pathnames(c->target, whitelist,
2944 strlen(whitelist))) {
2945 /* Absolute path specified, but not in ovs_rundir */
2946 VLOG_ERR_RL(&rl, "bridge %s: Not connecting to socket "
2947 "controller \"%s\" due to possibility for "
2948 "remote exploit. Instead, specify socket "
2949 "in whitelisted \"%s\" or connect to "
2950 "\"unix:%s/%s.mgmt\" (which is always "
2951 "available without special configuration).",
2952 br->name, c->target, whitelist,
2953 ovs_rundir(), br->name);
2958 whitelist = xasprintf("punix:%s/%s.controller",
2959 ovs_rundir(), br->name);
2960 if (!equal_pathnames(c->target, whitelist, SIZE_MAX)) {
2961 /* Prevent remote ovsdb-server users from accessing
2962 * arbitrary Unix domain sockets and overwriting arbitrary
2964 VLOG_ERR_RL(&rl, "bridge %s: Not adding Unix domain socket "
2965 "controller \"%s\" due to possibility of "
2966 "overwriting local files. Instead, specify "
2967 "whitelisted \"%s\" or connect to "
2968 "\"unix:%s/%s.mgmt\" (which is always "
2969 "available without special configuration).",
2970 br->name, c->target, whitelist,
2971 ovs_rundir(), br->name);
2980 bridge_configure_local_iface_netdev(br, c);
2981 bridge_ofproto_controller_from_ovsrec(c, &ocs[n_ocs]);
2982 if (disable_in_band) {
2983 ocs[n_ocs].band = OFPROTO_OUT_OF_BAND;
2988 ofproto_set_controllers(br->ofproto, ocs, n_ocs,
2989 bridge_get_allowed_versions(br));
2990 free(ocs[0].target); /* From bridge_ofproto_controller_for_mgmt(). */
2993 /* Set the fail-mode. */
2994 fail_mode = !br->cfg->fail_mode
2995 || !strcmp(br->cfg->fail_mode, "standalone")
2996 ? OFPROTO_FAIL_STANDALONE
2997 : OFPROTO_FAIL_SECURE;
2998 ofproto_set_fail_mode(br->ofproto, fail_mode);
3000 /* Configure OpenFlow controller connection snooping. */
3001 if (!ofproto_has_snoops(br->ofproto)) {
3005 sset_add_and_free(&snoops, xasprintf("punix:%s/%s.snoop",
3006 ovs_rundir(), br->name));
3007 ofproto_set_snoops(br->ofproto, &snoops);
3008 sset_destroy(&snoops);
3013 bridge_configure_tables(struct bridge *br)
3015 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
3019 n_tables = ofproto_get_n_tables(br->ofproto);
3021 for (i = 0; i < n_tables; i++) {
3022 struct ofproto_table_settings s;
3025 s.max_flows = UINT_MAX;
3028 s.n_prefix_fields = 0;
3029 memset(s.prefix_fields, ~0, sizeof(s.prefix_fields));
3031 if (j < br->cfg->n_flow_tables && i == br->cfg->key_flow_tables[j]) {
3032 struct ovsrec_flow_table *cfg = br->cfg->value_flow_tables[j++];
3035 if (cfg->n_flow_limit && *cfg->flow_limit < UINT_MAX) {
3036 s.max_flows = *cfg->flow_limit;
3038 if (cfg->overflow_policy
3039 && !strcmp(cfg->overflow_policy, "evict")) {
3041 s.groups = xmalloc(cfg->n_groups * sizeof *s.groups);
3042 for (k = 0; k < cfg->n_groups; k++) {
3043 const char *string = cfg->groups[k];
3046 msg = mf_parse_subfield__(&s.groups[k], &string);
3048 VLOG_WARN_RL(&rl, "bridge %s table %d: error parsing "
3049 "'groups' (%s)", br->name, i, msg);
3051 } else if (*string) {
3052 VLOG_WARN_RL(&rl, "bridge %s table %d: 'groups' "
3053 "element '%s' contains trailing garbage",
3054 br->name, i, cfg->groups[k]);
3060 /* Prefix lookup fields. */
3061 s.n_prefix_fields = 0;
3062 for (k = 0; k < cfg->n_prefixes; k++) {
3063 const char *name = cfg->prefixes[k];
3064 const struct mf_field *mf = mf_from_name(name);
3066 VLOG_WARN("bridge %s: 'prefixes' with unknown field: %s",
3070 if (mf->flow_be32ofs < 0 || mf->n_bits % 32) {
3071 VLOG_WARN("bridge %s: 'prefixes' with incompatible field: "
3072 "%s", br->name, name);
3075 if (s.n_prefix_fields >= ARRAY_SIZE(s.prefix_fields)) {
3076 VLOG_WARN("bridge %s: 'prefixes' with too many fields, "
3077 "field not used: %s", br->name, name);
3080 s.prefix_fields[s.n_prefix_fields++] = mf->id;
3082 if (s.n_prefix_fields > 0) {
3084 struct ds ds = DS_EMPTY_INITIALIZER;
3085 for (k = 0; k < s.n_prefix_fields; k++) {
3087 ds_put_char(&ds, ',');
3089 ds_put_cstr(&ds, mf_from_id(s.prefix_fields[k])->name);
3091 VLOG_INFO("bridge %s table %d: Prefix lookup with: %s.",
3092 br->name, i, ds_cstr(&ds));
3097 ofproto_configure_table(br->ofproto, i, &s);
3101 for (; j < br->cfg->n_flow_tables; j++) {
3102 VLOG_WARN_RL(&rl, "bridge %s: ignoring configuration for flow table "
3103 "%"PRId64" not supported by this datapath", br->name,
3104 br->cfg->key_flow_tables[j]);
3109 bridge_configure_dp_desc(struct bridge *br)
3111 ofproto_set_dp_desc(br->ofproto,
3112 smap_get(&br->cfg->other_config, "dp-desc"));
3115 /* Port functions. */
3117 static void iface_destroy__(struct iface *);
3119 static struct port *
3120 port_create(struct bridge *br, const struct ovsrec_port *cfg)
3124 port = xzalloc(sizeof *port);
3126 port->name = xstrdup(cfg->name);
3128 list_init(&port->ifaces);
3130 hmap_insert(&br->ports, &port->hmap_node, hash_string(port->name, 0));
3134 /* Deletes interfaces from 'port' that are no longer configured for it. */
3136 port_del_ifaces(struct port *port)
3138 struct iface *iface, *next;
3139 struct sset new_ifaces;
3142 /* Collect list of new interfaces. */
3143 sset_init(&new_ifaces);
3144 for (i = 0; i < port->cfg->n_interfaces; i++) {
3145 const char *name = port->cfg->interfaces[i]->name;
3146 const char *type = port->cfg->interfaces[i]->type;
3147 if (strcmp(type, "null")) {
3148 sset_add(&new_ifaces, name);
3152 /* Get rid of deleted interfaces. */
3153 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
3154 if (!sset_contains(&new_ifaces, iface->name)) {
3155 iface_destroy(iface);
3159 sset_destroy(&new_ifaces);
3163 port_destroy(struct port *port)
3166 struct bridge *br = port->bridge;
3167 struct iface *iface, *next;
3170 ofproto_bundle_unregister(br->ofproto, port);
3173 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
3174 iface_destroy__(iface);
3177 hmap_remove(&br->ports, &port->hmap_node);
3183 static struct port *
3184 port_lookup(const struct bridge *br, const char *name)
3188 HMAP_FOR_EACH_WITH_HASH (port, hmap_node, hash_string(name, 0),
3190 if (!strcmp(port->name, name)) {
3198 enable_lacp(struct port *port, bool *activep)
3200 if (!port->cfg->lacp) {
3201 /* XXX when LACP implementation has been sufficiently tested, enable by
3202 * default and make active on bonded ports. */
3204 } else if (!strcmp(port->cfg->lacp, "off")) {
3206 } else if (!strcmp(port->cfg->lacp, "active")) {
3209 } else if (!strcmp(port->cfg->lacp, "passive")) {
3213 VLOG_WARN("port %s: unknown LACP mode %s",
3214 port->name, port->cfg->lacp);
3219 static struct lacp_settings *
3220 port_configure_lacp(struct port *port, struct lacp_settings *s)
3222 const char *lacp_time, *system_id;
3225 if (!enable_lacp(port, &s->active)) {
3229 s->name = port->name;
3231 system_id = smap_get(&port->cfg->other_config, "lacp-system-id");
3233 if (!ovs_scan(system_id, ETH_ADDR_SCAN_FMT,
3234 ETH_ADDR_SCAN_ARGS(s->id))) {
3235 VLOG_WARN("port %s: LACP system ID (%s) must be an Ethernet"
3236 " address.", port->name, system_id);
3240 memcpy(s->id, port->bridge->ea, ETH_ADDR_LEN);
3243 if (eth_addr_is_zero(s->id)) {
3244 VLOG_WARN("port %s: Invalid zero LACP system ID.", port->name);
3248 /* Prefer bondable links if unspecified. */
3249 priority = smap_get_int(&port->cfg->other_config, "lacp-system-priority",
3251 s->priority = (priority > 0 && priority <= UINT16_MAX
3253 : UINT16_MAX - !list_is_short(&port->ifaces));
3255 lacp_time = smap_get(&port->cfg->other_config, "lacp-time");
3256 s->fast = lacp_time && !strcasecmp(lacp_time, "fast");
3258 s->fallback_ab_cfg = smap_get_bool(&port->cfg->other_config,
3259 "lacp-fallback-ab", false);
3265 iface_configure_lacp(struct iface *iface, struct lacp_slave_settings *s)
3267 int priority, portid, key;
3269 portid = smap_get_int(&iface->cfg->other_config, "lacp-port-id", 0);
3270 priority = smap_get_int(&iface->cfg->other_config, "lacp-port-priority",
3272 key = smap_get_int(&iface->cfg->other_config, "lacp-aggregation-key", 0);
3274 if (portid <= 0 || portid > UINT16_MAX) {
3275 portid = ofp_to_u16(iface->ofp_port);
3278 if (priority <= 0 || priority > UINT16_MAX) {
3279 priority = UINT16_MAX;
3282 if (key < 0 || key > UINT16_MAX) {
3286 s->name = iface->name;
3288 s->priority = priority;
3293 port_configure_bond(struct port *port, struct bond_settings *s)
3295 const char *detect_s;
3296 struct iface *iface;
3297 int miimon_interval;
3299 s->name = port->name;
3301 if (port->cfg->bond_mode) {
3302 if (!bond_mode_from_string(&s->balance, port->cfg->bond_mode)) {
3303 VLOG_WARN("port %s: unknown bond_mode %s, defaulting to %s",
3304 port->name, port->cfg->bond_mode,
3305 bond_mode_to_string(s->balance));
3308 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
3310 /* XXX: Post version 1.5.*, the default bond_mode changed from SLB to
3311 * active-backup. At some point we should remove this warning. */
3312 VLOG_WARN_RL(&rl, "port %s: Using the default bond_mode %s. Note that"
3313 " in previous versions, the default bond_mode was"
3314 " balance-slb", port->name,
3315 bond_mode_to_string(s->balance));
3317 if (s->balance == BM_SLB && port->bridge->cfg->n_flood_vlans) {
3318 VLOG_WARN("port %s: SLB bonds are incompatible with flood_vlans, "
3319 "please use another bond type or disable flood_vlans",
3323 miimon_interval = smap_get_int(&port->cfg->other_config,
3324 "bond-miimon-interval", 0);
3325 if (miimon_interval <= 0) {
3326 miimon_interval = 200;
3329 detect_s = smap_get(&port->cfg->other_config, "bond-detect-mode");
3330 if (!detect_s || !strcmp(detect_s, "carrier")) {
3331 miimon_interval = 0;
3332 } else if (strcmp(detect_s, "miimon")) {
3333 VLOG_WARN("port %s: unsupported bond-detect-mode %s, "
3334 "defaulting to carrier", port->name, detect_s);
3335 miimon_interval = 0;
3338 s->up_delay = MAX(0, port->cfg->bond_updelay);
3339 s->down_delay = MAX(0, port->cfg->bond_downdelay);
3340 s->basis = smap_get_int(&port->cfg->other_config, "bond-hash-basis", 0);
3341 s->rebalance_interval = smap_get_int(&port->cfg->other_config,
3342 "bond-rebalance-interval", 10000);
3343 if (s->rebalance_interval && s->rebalance_interval < 1000) {
3344 s->rebalance_interval = 1000;
3347 s->fake_iface = port->cfg->bond_fake_iface;
3349 s->lacp_fallback_ab_cfg = smap_get_bool(&port->cfg->other_config,
3350 "lacp-fallback-ab", false);
3352 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
3353 netdev_set_miimon_interval(iface->netdev, miimon_interval);
3357 /* Returns true if 'port' is synthetic, that is, if we constructed it locally
3358 * instead of obtaining it from the database. */
3360 port_is_synthetic(const struct port *port)
3362 return ovsdb_idl_row_is_synthetic(&port->cfg->header_);
3365 /* Interface functions. */
3368 iface_is_internal(const struct ovsrec_interface *iface,
3369 const struct ovsrec_bridge *br)
3371 /* The local port and "internal" ports are always "internal". */
3372 return !strcmp(iface->type, "internal") || !strcmp(iface->name, br->name);
3375 /* Returns the correct network device type for interface 'iface' in bridge
3378 iface_get_type(const struct ovsrec_interface *iface,
3379 const struct ovsrec_bridge *br)
3383 /* The local port always has type "internal". Other ports take
3384 * their type from the database and default to "system" if none is
3386 if (iface_is_internal(iface, br)) {
3389 type = iface->type[0] ? iface->type : "system";
3392 return ofproto_port_open_type(br->datapath_type, type);
3396 iface_destroy__(struct iface *iface)
3399 struct port *port = iface->port;
3400 struct bridge *br = port->bridge;
3402 if (br->ofproto && iface->ofp_port != OFPP_NONE) {
3403 ofproto_port_unregister(br->ofproto, iface->ofp_port);
3406 if (iface->ofp_port != OFPP_NONE) {
3407 hmap_remove(&br->ifaces, &iface->ofp_port_node);
3410 list_remove(&iface->port_elem);
3411 hmap_remove(&br->iface_by_name, &iface->name_node);
3413 netdev_close(iface->netdev);
3421 iface_destroy(struct iface *iface)
3424 struct port *port = iface->port;
3426 iface_destroy__(iface);
3427 if (list_is_empty(&port->ifaces)) {
3433 static struct iface *
3434 iface_lookup(const struct bridge *br, const char *name)
3436 struct iface *iface;
3438 HMAP_FOR_EACH_WITH_HASH (iface, name_node, hash_string(name, 0),
3439 &br->iface_by_name) {
3440 if (!strcmp(iface->name, name)) {
3448 static struct iface *
3449 iface_find(const char *name)
3451 const struct bridge *br;
3453 HMAP_FOR_EACH (br, node, &all_bridges) {
3454 struct iface *iface = iface_lookup(br, name);
3463 static struct iface *
3464 iface_from_ofp_port(const struct bridge *br, ofp_port_t ofp_port)
3466 struct iface *iface;
3468 HMAP_FOR_EACH_IN_BUCKET (iface, ofp_port_node, hash_ofp_port(ofp_port),
3470 if (iface->ofp_port == ofp_port) {
3477 /* Set Ethernet address of 'iface', if one is specified in the configuration
3480 iface_set_mac(struct iface *iface)
3482 uint8_t ea[ETH_ADDR_LEN];
3484 if (!strcmp(iface->type, "internal")
3485 && iface->cfg->mac && eth_addr_from_string(iface->cfg->mac, ea)) {
3486 if (iface->ofp_port == OFPP_LOCAL) {
3487 VLOG_ERR("interface %s: ignoring mac in Interface record "
3488 "(use Bridge record to set local port's mac)",
3490 } else if (eth_addr_is_multicast(ea)) {
3491 VLOG_ERR("interface %s: cannot set MAC to multicast address",
3494 int error = netdev_set_etheraddr(iface->netdev, ea);
3496 VLOG_ERR("interface %s: setting MAC failed (%s)",
3497 iface->name, ovs_strerror(error));
3503 /* Sets the ofport column of 'if_cfg' to 'ofport'. */
3505 iface_set_ofport(const struct ovsrec_interface *if_cfg, ofp_port_t ofport)
3507 if (if_cfg && !ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
3508 int64_t port = ofport == OFPP_NONE ? -1 : ofp_to_u16(ofport);
3509 ovsrec_interface_set_ofport(if_cfg, &port, 1);
3513 /* Clears all of the fields in 'if_cfg' that indicate interface status, and
3514 * sets the "ofport" field to -1.
3516 * This is appropriate when 'if_cfg''s interface cannot be created or is
3517 * otherwise invalid. */
3519 iface_clear_db_record(const struct ovsrec_interface *if_cfg)
3521 if (!ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
3522 ovsrec_interface_set_status(if_cfg, NULL);
3523 ovsrec_interface_set_admin_state(if_cfg, NULL);
3524 ovsrec_interface_set_duplex(if_cfg, NULL);
3525 ovsrec_interface_set_link_speed(if_cfg, NULL, 0);
3526 ovsrec_interface_set_link_state(if_cfg, NULL);
3527 ovsrec_interface_set_mac_in_use(if_cfg, NULL);
3528 ovsrec_interface_set_mtu(if_cfg, NULL, 0);
3529 ovsrec_interface_set_cfm_fault(if_cfg, NULL, 0);
3530 ovsrec_interface_set_cfm_fault_status(if_cfg, NULL, 0);
3531 ovsrec_interface_set_cfm_remote_mpids(if_cfg, NULL, 0);
3532 ovsrec_interface_set_lacp_current(if_cfg, NULL, 0);
3533 ovsrec_interface_set_statistics(if_cfg, NULL, NULL, 0);
3534 ovsrec_interface_set_ifindex(if_cfg, NULL, 0);
3539 queue_ids_include(const struct ovsdb_datum *queues, int64_t target)
3541 union ovsdb_atom atom;
3543 atom.integer = target;
3544 return ovsdb_datum_find_key(queues, &atom, OVSDB_TYPE_INTEGER) != UINT_MAX;
3548 iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos)
3550 struct ofpbuf queues_buf;
3552 ofpbuf_init(&queues_buf, 0);
3554 if (!qos || qos->type[0] == '\0' || qos->n_queues < 1) {
3555 netdev_set_qos(iface->netdev, NULL, NULL);
3557 const struct ovsdb_datum *queues;
3558 struct netdev_queue_dump dump;
3559 unsigned int queue_id;
3560 struct smap details;
3564 /* Configure top-level Qos for 'iface'. */
3565 netdev_set_qos(iface->netdev, qos->type, &qos->other_config);
3567 /* Deconfigure queues that were deleted. */
3568 queues = ovsrec_qos_get_queues(qos, OVSDB_TYPE_INTEGER,
3570 smap_init(&details);
3571 NETDEV_QUEUE_FOR_EACH (&queue_id, &details, &dump, iface->netdev) {
3572 if (!queue_ids_include(queues, queue_id)) {
3573 netdev_delete_queue(iface->netdev, queue_id);
3576 smap_destroy(&details);
3578 /* Configure queues for 'iface'. */
3580 for (i = 0; i < qos->n_queues; i++) {
3581 const struct ovsrec_queue *queue = qos->value_queues[i];
3582 unsigned int queue_id = qos->key_queues[i];
3584 if (queue_id == 0) {
3588 if (queue->n_dscp == 1) {
3589 struct ofproto_port_queue *port_queue;
3591 port_queue = ofpbuf_put_uninit(&queues_buf,
3592 sizeof *port_queue);
3593 port_queue->queue = queue_id;
3594 port_queue->dscp = queue->dscp[0];
3597 netdev_set_queue(iface->netdev, queue_id, &queue->other_config);
3600 struct smap details;
3602 smap_init(&details);
3603 netdev_set_queue(iface->netdev, 0, &details);
3604 smap_destroy(&details);
3608 if (iface->ofp_port != OFPP_NONE) {
3609 const struct ofproto_port_queue *port_queues = queues_buf.data;
3610 size_t n_queues = queues_buf.size / sizeof *port_queues;
3612 ofproto_port_set_queues(iface->port->bridge->ofproto, iface->ofp_port,
3613 port_queues, n_queues);
3616 netdev_set_policing(iface->netdev,
3617 iface->cfg->ingress_policing_rate,
3618 iface->cfg->ingress_policing_burst);
3620 ofpbuf_uninit(&queues_buf);
3624 iface_configure_cfm(struct iface *iface)
3626 const struct ovsrec_interface *cfg = iface->cfg;
3627 const char *opstate_str;
3628 const char *cfm_ccm_vlan;
3629 struct cfm_settings s;
3630 struct smap netdev_args;
3632 if (!cfg->n_cfm_mpid) {
3633 ofproto_port_clear_cfm(iface->port->bridge->ofproto, iface->ofp_port);
3637 s.check_tnl_key = false;
3638 smap_init(&netdev_args);
3639 if (!netdev_get_config(iface->netdev, &netdev_args)) {
3640 const char *key = smap_get(&netdev_args, "key");
3641 const char *in_key = smap_get(&netdev_args, "in_key");
3643 s.check_tnl_key = (key && !strcmp(key, "flow"))
3644 || (in_key && !strcmp(in_key, "flow"));
3646 smap_destroy(&netdev_args);
3648 s.mpid = *cfg->cfm_mpid;
3649 s.interval = smap_get_int(&iface->cfg->other_config, "cfm_interval", 0);
3650 cfm_ccm_vlan = smap_get(&iface->cfg->other_config, "cfm_ccm_vlan");
3651 s.ccm_pcp = smap_get_int(&iface->cfg->other_config, "cfm_ccm_pcp", 0);
3653 if (s.interval <= 0) {
3657 if (!cfm_ccm_vlan) {
3659 } else if (!strcasecmp("random", cfm_ccm_vlan)) {
3660 s.ccm_vlan = CFM_RANDOM_VLAN;
3662 s.ccm_vlan = atoi(cfm_ccm_vlan);
3663 if (s.ccm_vlan == CFM_RANDOM_VLAN) {
3668 s.extended = smap_get_bool(&iface->cfg->other_config, "cfm_extended",
3670 s.demand = smap_get_bool(&iface->cfg->other_config, "cfm_demand", false);
3672 opstate_str = smap_get(&iface->cfg->other_config, "cfm_opstate");
3673 s.opup = !opstate_str || !strcasecmp("up", opstate_str);
3675 ofproto_port_set_cfm(iface->port->bridge->ofproto, iface->ofp_port, &s);
3678 /* Returns true if 'iface' is synthetic, that is, if we constructed it locally
3679 * instead of obtaining it from the database. */
3681 iface_is_synthetic(const struct iface *iface)
3683 return ovsdb_idl_row_is_synthetic(&iface->cfg->header_);
3687 iface_validate_ofport__(size_t n, int64_t *ofport)
3689 return (n && *ofport >= 1 && *ofport < ofp_to_u16(OFPP_MAX)
3690 ? u16_to_ofp(*ofport)
3695 iface_get_requested_ofp_port(const struct ovsrec_interface *cfg)
3697 return iface_validate_ofport__(cfg->n_ofport_request, cfg->ofport_request);
3701 iface_pick_ofport(const struct ovsrec_interface *cfg)
3703 ofp_port_t requested_ofport = iface_get_requested_ofp_port(cfg);
3704 return (requested_ofport != OFPP_NONE
3706 : iface_validate_ofport__(cfg->n_ofport, cfg->ofport));
3709 /* Port mirroring. */
3711 static struct mirror *
3712 mirror_find_by_uuid(struct bridge *br, const struct uuid *uuid)
3716 HMAP_FOR_EACH_IN_BUCKET (m, hmap_node, uuid_hash(uuid), &br->mirrors) {
3717 if (uuid_equals(uuid, &m->uuid)) {
3725 bridge_configure_mirrors(struct bridge *br)
3727 const struct ovsdb_datum *mc;
3728 unsigned long *flood_vlans;
3729 struct mirror *m, *next;
3732 /* Get rid of deleted mirrors. */
3733 mc = ovsrec_bridge_get_mirrors(br->cfg, OVSDB_TYPE_UUID);
3734 HMAP_FOR_EACH_SAFE (m, next, hmap_node, &br->mirrors) {
3735 union ovsdb_atom atom;
3737 atom.uuid = m->uuid;
3738 if (ovsdb_datum_find_key(mc, &atom, OVSDB_TYPE_UUID) == UINT_MAX) {
3743 /* Add new mirrors and reconfigure existing ones. */
3744 for (i = 0; i < br->cfg->n_mirrors; i++) {
3745 const struct ovsrec_mirror *cfg = br->cfg->mirrors[i];
3746 struct mirror *m = mirror_find_by_uuid(br, &cfg->header_.uuid);
3748 m = mirror_create(br, cfg);
3751 if (!mirror_configure(m)) {
3756 /* Update flooded vlans (for RSPAN). */
3757 flood_vlans = vlan_bitmap_from_array(br->cfg->flood_vlans,
3758 br->cfg->n_flood_vlans);
3759 ofproto_set_flood_vlans(br->ofproto, flood_vlans);
3760 bitmap_free(flood_vlans);
3763 static struct mirror *
3764 mirror_create(struct bridge *br, const struct ovsrec_mirror *cfg)
3768 m = xzalloc(sizeof *m);
3769 m->uuid = cfg->header_.uuid;
3770 hmap_insert(&br->mirrors, &m->hmap_node, uuid_hash(&m->uuid));
3772 m->name = xstrdup(cfg->name);
3778 mirror_destroy(struct mirror *m)
3781 struct bridge *br = m->bridge;
3784 ofproto_mirror_unregister(br->ofproto, m);
3787 hmap_remove(&br->mirrors, &m->hmap_node);
3794 mirror_collect_ports(struct mirror *m,
3795 struct ovsrec_port **in_ports, int n_in_ports,
3796 void ***out_portsp, size_t *n_out_portsp)
3798 void **out_ports = xmalloc(n_in_ports * sizeof *out_ports);
3799 size_t n_out_ports = 0;
3802 for (i = 0; i < n_in_ports; i++) {
3803 const char *name = in_ports[i]->name;
3804 struct port *port = port_lookup(m->bridge, name);
3806 out_ports[n_out_ports++] = port;
3808 VLOG_WARN("bridge %s: mirror %s cannot match on nonexistent "
3809 "port %s", m->bridge->name, m->name, name);
3812 *out_portsp = out_ports;
3813 *n_out_portsp = n_out_ports;
3817 mirror_configure(struct mirror *m)
3819 const struct ovsrec_mirror *cfg = m->cfg;
3820 struct ofproto_mirror_settings s;
3823 if (strcmp(cfg->name, m->name)) {
3825 m->name = xstrdup(cfg->name);
3829 /* Get output port or VLAN. */
3830 if (cfg->output_port) {
3831 s.out_bundle = port_lookup(m->bridge, cfg->output_port->name);
3832 if (!s.out_bundle) {
3833 VLOG_ERR("bridge %s: mirror %s outputs to port not on bridge",
3834 m->bridge->name, m->name);
3837 s.out_vlan = UINT16_MAX;
3839 if (cfg->output_vlan) {
3840 VLOG_ERR("bridge %s: mirror %s specifies both output port and "
3841 "output vlan; ignoring output vlan",
3842 m->bridge->name, m->name);
3844 } else if (cfg->output_vlan) {
3845 /* The database should prevent invalid VLAN values. */
3846 s.out_bundle = NULL;
3847 s.out_vlan = *cfg->output_vlan;
3849 VLOG_ERR("bridge %s: mirror %s does not specify output; ignoring",
3850 m->bridge->name, m->name);
3854 /* Get port selection. */
3855 if (cfg->select_all) {
3856 size_t n_ports = hmap_count(&m->bridge->ports);
3857 void **ports = xmalloc(n_ports * sizeof *ports);
3862 HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) {
3872 /* Get ports, dropping ports that don't exist.
3873 * The IDL ensures that there are no duplicates. */
3874 mirror_collect_ports(m, cfg->select_src_port, cfg->n_select_src_port,
3875 &s.srcs, &s.n_srcs);
3876 mirror_collect_ports(m, cfg->select_dst_port, cfg->n_select_dst_port,
3877 &s.dsts, &s.n_dsts);
3880 /* Get VLAN selection. */
3881 s.src_vlans = vlan_bitmap_from_array(cfg->select_vlan, cfg->n_select_vlan);
3884 ofproto_mirror_register(m->bridge->ofproto, m, &s);
3887 if (s.srcs != s.dsts) {
3896 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
3898 * This is deprecated. It is only for compatibility with broken device drivers
3899 * in old versions of Linux that do not properly support VLANs when VLAN
3900 * devices are not used. When broken device drivers are no longer in
3901 * widespread use, we will delete these interfaces. */
3903 static struct ovsrec_port **recs;
3904 static size_t n_recs, allocated_recs;
3906 /* Adds 'rec' to a list of recs that have to be destroyed when the VLAN
3907 * splinters are reconfigured. */
3909 register_rec(struct ovsrec_port *rec)
3911 if (n_recs >= allocated_recs) {
3912 recs = x2nrealloc(recs, &allocated_recs, sizeof *recs);
3914 recs[n_recs++] = rec;
3917 /* Frees all of the ports registered with register_reg(). */
3919 free_registered_recs(void)
3923 for (i = 0; i < n_recs; i++) {
3924 struct ovsrec_port *port = recs[i];
3927 for (j = 0; j < port->n_interfaces; j++) {
3928 struct ovsrec_interface *iface = port->interfaces[j];
3933 smap_destroy(&port->other_config);
3934 free(port->interfaces);
3942 /* Returns true if VLAN splinters are enabled on 'iface_cfg', false
3945 vlan_splinters_is_enabled(const struct ovsrec_interface *iface_cfg)
3947 return smap_get_bool(&iface_cfg->other_config, "enable-vlan-splinters",
3951 /* Figures out the set of VLANs that are in use for the purpose of VLAN
3954 * If VLAN splinters are enabled on at least one interface and any VLANs are in
3955 * use, returns a 4096-bit bitmap with a 1-bit for each in-use VLAN (bits 0 and
3956 * 4095 will not be set). The caller is responsible for freeing the bitmap,
3959 * If VLANs splinters are not enabled on any interface or if no VLANs are in
3960 * use, returns NULL.
3962 * Updates 'vlan_splinters_enabled_anywhere'. */
3963 static unsigned long int *
3964 collect_splinter_vlans(const struct ovsrec_open_vswitch *ovs_cfg)
3966 unsigned long int *splinter_vlans;
3967 struct sset splinter_ifaces;
3968 const char *real_dev_name;
3969 struct shash *real_devs;
3970 struct shash_node *node;
3974 /* Free space allocated for synthesized ports and interfaces, since we're
3975 * in the process of reconstructing all of them. */
3976 free_registered_recs();
3978 splinter_vlans = bitmap_allocate(4096);
3979 sset_init(&splinter_ifaces);
3980 vlan_splinters_enabled_anywhere = false;
3981 for (i = 0; i < ovs_cfg->n_bridges; i++) {
3982 struct ovsrec_bridge *br_cfg = ovs_cfg->bridges[i];
3985 for (j = 0; j < br_cfg->n_ports; j++) {
3986 struct ovsrec_port *port_cfg = br_cfg->ports[j];
3989 for (k = 0; k < port_cfg->n_interfaces; k++) {
3990 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[k];
3992 if (vlan_splinters_is_enabled(iface_cfg)) {
3993 vlan_splinters_enabled_anywhere = true;
3994 sset_add(&splinter_ifaces, iface_cfg->name);
3995 vlan_bitmap_from_array__(port_cfg->trunks,
4001 if (port_cfg->tag && *port_cfg->tag > 0 && *port_cfg->tag < 4095) {
4002 bitmap_set1(splinter_vlans, *port_cfg->tag);
4007 if (!vlan_splinters_enabled_anywhere) {
4008 free(splinter_vlans);
4009 sset_destroy(&splinter_ifaces);
4013 HMAP_FOR_EACH (br, node, &all_bridges) {
4015 ofproto_get_vlan_usage(br->ofproto, splinter_vlans);
4019 /* Don't allow VLANs 0 or 4095 to be splintered. VLAN 0 should appear on
4020 * the real device. VLAN 4095 is reserved and Linux doesn't allow a VLAN
4021 * device to be created for it. */
4022 bitmap_set0(splinter_vlans, 0);
4023 bitmap_set0(splinter_vlans, 4095);
4025 /* Delete all VLAN devices that we don't need. */
4027 real_devs = vlandev_get_real_devs();
4028 SHASH_FOR_EACH (node, real_devs) {
4029 const struct vlan_real_dev *real_dev = node->data;
4030 const struct vlan_dev *vlan_dev;
4031 bool real_dev_has_splinters;
4033 real_dev_has_splinters = sset_contains(&splinter_ifaces,
4035 HMAP_FOR_EACH (vlan_dev, hmap_node, &real_dev->vlan_devs) {
4036 if (!real_dev_has_splinters
4037 || !bitmap_is_set(splinter_vlans, vlan_dev->vid)) {
4038 struct netdev *netdev;
4040 if (!netdev_open(vlan_dev->name, "system", &netdev)) {
4041 if (!netdev_get_in4(netdev, NULL, NULL) ||
4042 !netdev_get_in6(netdev, NULL)) {
4043 /* It has an IP address configured, so we don't own
4044 * it. Don't delete it. */
4046 vlandev_del(vlan_dev->name);
4048 netdev_close(netdev);
4055 /* Add all VLAN devices that we need. */
4056 SSET_FOR_EACH (real_dev_name, &splinter_ifaces) {
4059 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
4060 if (!vlandev_get_name(real_dev_name, vid)) {
4061 vlandev_add(real_dev_name, vid);
4068 sset_destroy(&splinter_ifaces);
4070 if (bitmap_scan(splinter_vlans, 0, 4096) >= 4096) {
4071 free(splinter_vlans);
4074 return splinter_vlans;
4077 /* Pushes the configure of VLAN splinter port 'port' (e.g. eth0.9) down to
4080 configure_splinter_port(struct port *port)
4082 struct ofproto *ofproto = port->bridge->ofproto;
4083 ofp_port_t realdev_ofp_port;
4084 const char *realdev_name;
4085 struct iface *vlandev, *realdev;
4087 ofproto_bundle_unregister(port->bridge->ofproto, port);
4089 vlandev = CONTAINER_OF(list_front(&port->ifaces), struct iface,
4092 realdev_name = smap_get(&port->cfg->other_config, "realdev");
4093 realdev = iface_lookup(port->bridge, realdev_name);
4094 realdev_ofp_port = realdev ? realdev->ofp_port : 0;
4096 ofproto_port_set_realdev(ofproto, vlandev->ofp_port, realdev_ofp_port,
4100 static struct ovsrec_port *
4101 synthesize_splinter_port(const char *real_dev_name,
4102 const char *vlan_dev_name, int vid)
4104 struct ovsrec_interface *iface;
4105 struct ovsrec_port *port;
4107 iface = xmalloc(sizeof *iface);
4108 ovsrec_interface_init(iface);
4109 iface->name = xstrdup(vlan_dev_name);
4110 iface->type = "system";
4112 port = xmalloc(sizeof *port);
4113 ovsrec_port_init(port);
4114 port->interfaces = xmemdup(&iface, sizeof iface);
4115 port->n_interfaces = 1;
4116 port->name = xstrdup(vlan_dev_name);
4117 port->vlan_mode = "splinter";
4118 port->tag = xmalloc(sizeof *port->tag);
4121 smap_add(&port->other_config, "realdev", real_dev_name);
4127 /* For each interface with 'br' that has VLAN splinters enabled, adds a
4128 * corresponding ovsrec_port to 'ports' for each splinter VLAN marked with a
4129 * 1-bit in the 'splinter_vlans' bitmap. */
4131 add_vlan_splinter_ports(struct bridge *br,
4132 const unsigned long int *splinter_vlans,
4133 struct shash *ports)
4137 /* We iterate through 'br->cfg->ports' instead of 'ports' here because
4138 * we're modifying 'ports'. */
4139 for (i = 0; i < br->cfg->n_ports; i++) {
4140 const char *name = br->cfg->ports[i]->name;
4141 struct ovsrec_port *port_cfg = shash_find_data(ports, name);
4144 for (j = 0; j < port_cfg->n_interfaces; j++) {
4145 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[j];
4147 if (vlan_splinters_is_enabled(iface_cfg)) {
4148 const char *real_dev_name;
4151 real_dev_name = iface_cfg->name;
4152 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
4153 const char *vlan_dev_name;
4155 vlan_dev_name = vlandev_get_name(real_dev_name, vid);
4157 && !shash_find(ports, vlan_dev_name)) {
4158 shash_add(ports, vlan_dev_name,
4159 synthesize_splinter_port(
4160 real_dev_name, vlan_dev_name, vid));
4169 mirror_refresh_stats(struct mirror *m)
4171 struct ofproto *ofproto = m->bridge->ofproto;
4172 uint64_t tx_packets, tx_bytes;
4175 size_t stat_cnt = 0;
4177 if (ofproto_mirror_get_stats(ofproto, m, &tx_packets, &tx_bytes)) {
4178 ovsrec_mirror_set_statistics(m->cfg, NULL, NULL, 0);
4182 if (tx_packets != UINT64_MAX) {
4183 keys[stat_cnt] = "tx_packets";
4184 values[stat_cnt] = tx_packets;
4187 if (tx_bytes != UINT64_MAX) {
4188 keys[stat_cnt] = "tx_bytes";
4189 values[stat_cnt] = tx_bytes;
4193 ovsrec_mirror_set_statistics(m->cfg, keys, values, stat_cnt);