1 /* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014 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_run__(void);
180 static void bridge_create(const struct ovsrec_bridge *);
181 static void bridge_destroy(struct bridge *);
182 static struct bridge *bridge_lookup(const char *name);
183 static unixctl_cb_func bridge_unixctl_dump_flows;
184 static unixctl_cb_func bridge_unixctl_reconnect;
185 static size_t bridge_get_controllers(const struct bridge *br,
186 struct ovsrec_controller ***controllersp);
187 static void bridge_collect_wanted_ports(struct bridge *,
188 const unsigned long *splinter_vlans,
189 struct shash *wanted_ports);
190 static void bridge_delete_ofprotos(void);
191 static void bridge_delete_or_reconfigure_ports(struct bridge *);
192 static void bridge_del_ports(struct bridge *,
193 const struct shash *wanted_ports);
194 static void bridge_add_ports(struct bridge *,
195 const struct shash *wanted_ports);
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 *, const uint8_t *);
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);
358 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_admin_state);
359 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_duplex);
360 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_speed);
361 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_state);
362 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_resets);
363 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mac_in_use);
364 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ifindex);
365 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mtu);
366 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ofport);
367 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_statistics);
368 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_status);
369 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault);
370 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault_status);
371 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_remote_mpids);
372 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_flap_count);
373 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_health);
374 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_remote_opstate);
375 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_bfd_status);
376 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_lacp_current);
377 ovsdb_idl_omit(idl, &ovsrec_interface_col_external_ids);
379 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_is_connected);
380 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_role);
381 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_status);
382 ovsdb_idl_omit(idl, &ovsrec_controller_col_external_ids);
384 ovsdb_idl_omit(idl, &ovsrec_qos_col_external_ids);
386 ovsdb_idl_omit(idl, &ovsrec_queue_col_external_ids);
388 ovsdb_idl_omit(idl, &ovsrec_mirror_col_external_ids);
389 ovsdb_idl_omit_alert(idl, &ovsrec_mirror_col_statistics);
391 ovsdb_idl_omit(idl, &ovsrec_netflow_col_external_ids);
392 ovsdb_idl_omit(idl, &ovsrec_sflow_col_external_ids);
393 ovsdb_idl_omit(idl, &ovsrec_ipfix_col_external_ids);
394 ovsdb_idl_omit(idl, &ovsrec_flow_sample_collector_set_col_external_ids);
396 ovsdb_idl_omit(idl, &ovsrec_manager_col_external_ids);
397 ovsdb_idl_omit(idl, &ovsrec_manager_col_inactivity_probe);
398 ovsdb_idl_omit(idl, &ovsrec_manager_col_is_connected);
399 ovsdb_idl_omit(idl, &ovsrec_manager_col_max_backoff);
400 ovsdb_idl_omit(idl, &ovsrec_manager_col_status);
402 ovsdb_idl_omit(idl, &ovsrec_ssl_col_external_ids);
404 /* Register unixctl commands. */
405 unixctl_command_register("qos/show", "interface", 1, 1,
406 qos_unixctl_show, NULL);
407 unixctl_command_register("bridge/dump-flows", "bridge", 1, 1,
408 bridge_unixctl_dump_flows, NULL);
409 unixctl_command_register("bridge/reconnect", "[bridge]", 0, 1,
410 bridge_unixctl_reconnect, NULL);
420 struct bridge *br, *next_br;
422 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
425 ovsdb_idl_destroy(idl);
428 /* Looks at the list of managers in 'ovs_cfg' and extracts their remote IP
429 * addresses and ports into '*managersp' and '*n_managersp'. The caller is
430 * responsible for freeing '*managersp' (with free()).
432 * You may be asking yourself "why does ovs-vswitchd care?", because
433 * ovsdb-server is responsible for connecting to the managers, and ovs-vswitchd
434 * should not be and in fact is not directly involved in that. But
435 * ovs-vswitchd needs to make sure that ovsdb-server can reach the managers, so
436 * it has to tell in-band control where the managers are to enable that.
437 * (Thus, only managers connected in-band are collected.)
440 collect_in_band_managers(const struct ovsrec_open_vswitch *ovs_cfg,
441 struct sockaddr_in **managersp, size_t *n_managersp)
443 struct sockaddr_in *managers = NULL;
444 size_t n_managers = 0;
448 /* Collect all of the potential targets from the "targets" columns of the
449 * rows pointed to by "manager_options", excluding any that are
452 for (i = 0; i < ovs_cfg->n_manager_options; i++) {
453 struct ovsrec_manager *m = ovs_cfg->manager_options[i];
455 if (m->connection_mode && !strcmp(m->connection_mode, "out-of-band")) {
456 sset_find_and_delete(&targets, m->target);
458 sset_add(&targets, m->target);
462 /* Now extract the targets' IP addresses. */
463 if (!sset_is_empty(&targets)) {
466 managers = xmalloc(sset_count(&targets) * sizeof *managers);
467 SSET_FOR_EACH (target, &targets) {
468 struct sockaddr_storage ss;
470 if (stream_parse_target_with_default_port(target, OVSDB_OLD_PORT,
472 && ss.ss_family == AF_INET) {
473 managers[n_managers++] = *(struct sockaddr_in *) &ss;
477 sset_destroy(&targets);
479 *managersp = managers;
480 *n_managersp = n_managers;
484 bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
486 unsigned long int *splinter_vlans;
487 struct sockaddr_in *managers;
488 struct bridge *br, *next;
489 int sflow_bridge_number;
492 COVERAGE_INC(bridge_reconfigure);
494 ofproto_set_flow_limit(smap_get_int(&ovs_cfg->other_config, "flow-limit",
495 OFPROTO_FLOW_LIMIT_DEFAULT));
498 smap_get_int(&ovs_cfg->other_config, "n-handler-threads", 0),
499 smap_get_int(&ovs_cfg->other_config, "n-revalidator-threads", 0));
501 /* Destroy "struct bridge"s, "struct port"s, and "struct iface"s according
502 * to 'ovs_cfg', with only very minimal configuration otherwise.
504 * This is mostly an update to bridge data structures. Nothing is pushed
505 * down to ofproto or lower layers. */
506 add_del_bridges(ovs_cfg);
507 splinter_vlans = collect_splinter_vlans(ovs_cfg);
508 HMAP_FOR_EACH (br, node, &all_bridges) {
509 bridge_collect_wanted_ports(br, splinter_vlans, &br->wanted_ports);
510 bridge_del_ports(br, &br->wanted_ports);
512 free(splinter_vlans);
514 /* Start pushing configuration changes down to the ofproto layer:
516 * - Delete ofprotos that are no longer configured.
518 * - Delete ports that are no longer configured.
520 * - Reconfigure existing ports to their desired configurations, or
521 * delete them if not possible.
523 * We have to do all the deletions before we can do any additions, because
524 * the ports to be added might require resources that will be freed up by
525 * deletions (they might especially overlap in name). */
526 bridge_delete_ofprotos();
527 HMAP_FOR_EACH (br, node, &all_bridges) {
529 bridge_delete_or_reconfigure_ports(br);
533 /* Finish pushing configuration changes to the ofproto layer:
535 * - Create ofprotos that are missing.
537 * - Add ports that are missing. */
538 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
542 error = ofproto_create(br->name, br->type, &br->ofproto);
544 VLOG_ERR("failed to create bridge %s: %s", br->name,
545 ovs_strerror(error));
546 shash_destroy(&br->wanted_ports);
551 HMAP_FOR_EACH (br, node, &all_bridges) {
552 bridge_add_ports(br, &br->wanted_ports);
553 shash_destroy(&br->wanted_ports);
556 reconfigure_system_stats(ovs_cfg);
558 /* Complete the configuration. */
559 sflow_bridge_number = 0;
560 collect_in_band_managers(ovs_cfg, &managers, &n_managers);
561 HMAP_FOR_EACH (br, node, &all_bridges) {
564 /* We need the datapath ID early to allow LACP ports to use it as the
565 * default system ID. */
566 bridge_configure_datapath_id(br);
568 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
571 port_configure(port);
573 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
574 iface_set_ofport(iface->cfg, iface->ofp_port);
575 iface_configure_cfm(iface);
576 iface_configure_qos(iface, port->cfg->qos);
577 iface_set_mac(iface, port->cfg->fake_bridge ? br->ea : NULL);
578 ofproto_port_set_bfd(br->ofproto, iface->ofp_port,
582 bridge_configure_mirrors(br);
583 bridge_configure_forward_bpdu(br);
584 bridge_configure_mac_table(br);
585 bridge_configure_remotes(br, managers, n_managers);
586 bridge_configure_netflow(br);
587 bridge_configure_sflow(br, &sflow_bridge_number);
588 bridge_configure_ipfix(br);
589 bridge_configure_stp(br);
590 bridge_configure_tables(br);
591 bridge_configure_dp_desc(br);
593 if (smap_get(&br->cfg->other_config, "flow-eviction-threshold")) {
594 /* XXX: Remove this warning message eventually. */
595 VLOG_WARN_ONCE("As of June 2013, flow-eviction-threshold has been"
596 " moved to the Open_vSwitch table. Ignoring its"
597 " setting in the bridge table.");
602 /* The ofproto-dpif provider does some final reconfiguration in its
603 * ->type_run() function. We have to call it before notifying the database
604 * client that reconfiguration is complete, otherwise there is a very
605 * narrow race window in which e.g. ofproto/trace will not recognize the
606 * new configuration (sometimes this causes unit test failures). */
610 /* Delete ofprotos which aren't configured or have the wrong type. Create
611 * ofprotos which don't exist but need to. */
613 bridge_delete_ofprotos(void)
620 /* Delete ofprotos with no bridge or with the wrong type. */
623 ofproto_enumerate_types(&types);
624 SSET_FOR_EACH (type, &types) {
627 ofproto_enumerate_names(type, &names);
628 SSET_FOR_EACH (name, &names) {
629 br = bridge_lookup(name);
630 if (!br || strcmp(type, br->type)) {
631 ofproto_delete(name, type);
635 sset_destroy(&names);
636 sset_destroy(&types);
640 add_ofp_port(ofp_port_t port, ofp_port_t *ports, size_t *n, size_t *allocated)
642 if (*n >= *allocated) {
643 ports = x2nrealloc(ports, allocated, sizeof *ports);
645 ports[(*n)++] = port;
650 bridge_delete_or_reconfigure_ports(struct bridge *br)
652 struct ofproto_port ofproto_port;
653 struct ofproto_port_dump dump;
655 /* List of "ofp_port"s to delete. We make a list instead of deleting them
656 * right away because ofproto implementations aren't necessarily able to
657 * iterate through a changing list of ports in an entirely robust way. */
665 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
666 ofp_port_t requested_ofp_port;
669 iface = iface_lookup(br, ofproto_port.name);
671 /* No such iface is configured, so we should delete this
674 * As a corner case exception, keep the port if it's a bond fake
676 if (bridge_has_bond_fake_iface(br, ofproto_port.name)
677 && !strcmp(ofproto_port.type, "internal")) {
683 if (strcmp(ofproto_port.type, iface->type)
684 || netdev_set_config(iface->netdev, &iface->cfg->options)) {
685 /* The interface is the wrong type or can't be configured.
690 /* If the requested OpenFlow port for 'iface' changed, and it's not
691 * already the correct port, then we might want to temporarily delete
692 * this interface, so we can add it back again with the new OpenFlow
694 requested_ofp_port = iface_get_requested_ofp_port(iface->cfg);
695 if (iface->ofp_port != OFPP_LOCAL &&
696 requested_ofp_port != OFPP_NONE &&
697 requested_ofp_port != iface->ofp_port) {
698 ofp_port_t victim_request;
699 struct iface *victim;
701 /* Check for an existing OpenFlow port currently occupying
702 * 'iface''s requested port number. If there isn't one, then
703 * delete this port. Otherwise we need to consider further. */
704 victim = iface_from_ofp_port(br, requested_ofp_port);
709 /* 'victim' is a port currently using 'iface''s requested port
710 * number. Unless 'victim' specifically requested that port
711 * number, too, then we can delete both 'iface' and 'victim'
712 * temporarily. (We'll add both of them back again later with new
713 * OpenFlow port numbers.)
715 * If 'victim' did request port number 'requested_ofp_port', just
716 * like 'iface', then that's a configuration inconsistency that we
717 * can't resolve. We might as well let it keep its current port
719 victim_request = iface_get_requested_ofp_port(victim->cfg);
720 if (victim_request != requested_ofp_port) {
721 del = add_ofp_port(victim->ofp_port, del, &n, &allocated);
722 iface_destroy(victim);
731 iface_destroy(iface);
732 del = add_ofp_port(ofproto_port.ofp_port, del, &n, &allocated);
735 for (i = 0; i < n; i++) {
736 ofproto_port_del(br->ofproto, del[i]);
742 bridge_add_ports__(struct bridge *br, const struct shash *wanted_ports,
743 bool with_requested_port)
745 struct shash_node *port_node;
747 SHASH_FOR_EACH (port_node, wanted_ports) {
748 const struct ovsrec_port *port_cfg = port_node->data;
751 for (i = 0; i < port_cfg->n_interfaces; i++) {
752 const struct ovsrec_interface *iface_cfg = port_cfg->interfaces[i];
753 ofp_port_t requested_ofp_port;
755 requested_ofp_port = iface_get_requested_ofp_port(iface_cfg);
756 if ((requested_ofp_port != OFPP_NONE) == with_requested_port) {
757 struct iface *iface = iface_lookup(br, iface_cfg->name);
760 iface_create(br, iface_cfg, port_cfg);
768 bridge_add_ports(struct bridge *br, const struct shash *wanted_ports)
770 /* First add interfaces that request a particular port number. */
771 bridge_add_ports__(br, wanted_ports, true);
773 /* Then add interfaces that want automatic port number assignment.
774 * We add these afterward to avoid accidentally taking a specifically
775 * requested port number. */
776 bridge_add_ports__(br, wanted_ports, false);
780 port_configure(struct port *port)
782 const struct ovsrec_port *cfg = port->cfg;
783 struct bond_settings bond_settings;
784 struct lacp_settings lacp_settings;
785 struct ofproto_bundle_settings s;
788 if (cfg->vlan_mode && !strcmp(cfg->vlan_mode, "splinter")) {
789 configure_splinter_port(port);
798 s.slaves = xmalloc(list_size(&port->ifaces) * sizeof *s.slaves);
799 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
800 s.slaves[s.n_slaves++] = iface->ofp_port;
805 if (cfg->tag && *cfg->tag >= 0 && *cfg->tag <= 4095) {
809 /* Get VLAN trunks. */
812 s.trunks = vlan_bitmap_from_array(cfg->trunks, cfg->n_trunks);
816 if (cfg->vlan_mode) {
817 if (!strcmp(cfg->vlan_mode, "access")) {
818 s.vlan_mode = PORT_VLAN_ACCESS;
819 } else if (!strcmp(cfg->vlan_mode, "trunk")) {
820 s.vlan_mode = PORT_VLAN_TRUNK;
821 } else if (!strcmp(cfg->vlan_mode, "native-tagged")) {
822 s.vlan_mode = PORT_VLAN_NATIVE_TAGGED;
823 } else if (!strcmp(cfg->vlan_mode, "native-untagged")) {
824 s.vlan_mode = PORT_VLAN_NATIVE_UNTAGGED;
826 /* This "can't happen" because ovsdb-server should prevent it. */
827 VLOG_ERR("unknown VLAN mode %s", cfg->vlan_mode);
828 s.vlan_mode = PORT_VLAN_TRUNK;
832 s.vlan_mode = PORT_VLAN_ACCESS;
834 VLOG_ERR("port %s: ignoring trunks in favor of implicit vlan",
838 s.vlan_mode = PORT_VLAN_TRUNK;
841 s.use_priority_tags = smap_get_bool(&cfg->other_config, "priority-tags",
844 /* Get LACP settings. */
845 s.lacp = port_configure_lacp(port, &lacp_settings);
849 s.lacp_slaves = xmalloc(s.n_slaves * sizeof *s.lacp_slaves);
850 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
851 iface_configure_lacp(iface, &s.lacp_slaves[i++]);
854 s.lacp_slaves = NULL;
857 /* Get bond settings. */
858 if (s.n_slaves > 1) {
859 s.bond = &bond_settings;
860 port_configure_bond(port, &bond_settings);
863 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
864 netdev_set_miimon_interval(iface->netdev, 0);
869 ofproto_bundle_register(port->bridge->ofproto, port, &s);
877 /* Pick local port hardware address and datapath ID for 'br'. */
879 bridge_configure_datapath_id(struct bridge *br)
881 uint8_t ea[ETH_ADDR_LEN];
883 struct iface *local_iface;
884 struct iface *hw_addr_iface;
887 bridge_pick_local_hw_addr(br, ea, &hw_addr_iface);
888 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
890 int error = netdev_set_etheraddr(local_iface->netdev, ea);
892 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
893 VLOG_ERR_RL(&rl, "bridge %s: failed to set bridge "
894 "Ethernet address: %s",
895 br->name, ovs_strerror(error));
898 memcpy(br->ea, ea, ETH_ADDR_LEN);
900 dpid = bridge_pick_datapath_id(br, ea, hw_addr_iface);
901 if (dpid != ofproto_get_datapath_id(br->ofproto)) {
902 VLOG_INFO("bridge %s: using datapath ID %016"PRIx64, br->name, dpid);
903 ofproto_set_datapath_id(br->ofproto, dpid);
906 dpid_string = xasprintf("%016"PRIx64, dpid);
907 ovsrec_bridge_set_datapath_id(br->cfg, dpid_string);
911 /* Returns a bitmap of "enum ofputil_protocol"s that are allowed for use with
914 bridge_get_allowed_versions(struct bridge *br)
916 if (!br->cfg->n_protocols)
919 return ofputil_versions_from_strings(br->cfg->protocols,
920 br->cfg->n_protocols);
923 /* Set NetFlow configuration on 'br'. */
925 bridge_configure_netflow(struct bridge *br)
927 struct ovsrec_netflow *cfg = br->cfg->netflow;
928 struct netflow_options opts;
931 ofproto_set_netflow(br->ofproto, NULL);
935 memset(&opts, 0, sizeof opts);
937 /* Get default NetFlow configuration from datapath.
938 * Apply overrides from 'cfg'. */
939 ofproto_get_netflow_ids(br->ofproto, &opts.engine_type, &opts.engine_id);
940 if (cfg->engine_type) {
941 opts.engine_type = *cfg->engine_type;
943 if (cfg->engine_id) {
944 opts.engine_id = *cfg->engine_id;
947 /* Configure active timeout interval. */
948 opts.active_timeout = cfg->active_timeout;
949 if (!opts.active_timeout) {
950 opts.active_timeout = -1;
951 } else if (opts.active_timeout < 0) {
952 VLOG_WARN("bridge %s: active timeout interval set to negative "
953 "value, using default instead (%d seconds)", br->name,
954 NF_ACTIVE_TIMEOUT_DEFAULT);
955 opts.active_timeout = -1;
958 /* Add engine ID to interface number to disambiguate bridgs? */
959 opts.add_id_to_iface = cfg->add_id_to_interface;
960 if (opts.add_id_to_iface) {
961 if (opts.engine_id > 0x7f) {
962 VLOG_WARN("bridge %s: NetFlow port mangling may conflict with "
963 "another vswitch, choose an engine id less than 128",
966 if (hmap_count(&br->ports) > 508) {
967 VLOG_WARN("bridge %s: NetFlow port mangling will conflict with "
968 "another port when more than 508 ports are used",
974 sset_init(&opts.collectors);
975 sset_add_array(&opts.collectors, cfg->targets, cfg->n_targets);
978 if (ofproto_set_netflow(br->ofproto, &opts)) {
979 VLOG_ERR("bridge %s: problem setting netflow collectors", br->name);
981 sset_destroy(&opts.collectors);
984 /* Set sFlow configuration on 'br'. */
986 bridge_configure_sflow(struct bridge *br, int *sflow_bridge_number)
988 const struct ovsrec_sflow *cfg = br->cfg->sflow;
989 struct ovsrec_controller **controllers;
990 struct ofproto_sflow_options oso;
991 size_t n_controllers;
995 ofproto_set_sflow(br->ofproto, NULL);
999 memset(&oso, 0, sizeof oso);
1001 sset_init(&oso.targets);
1002 sset_add_array(&oso.targets, cfg->targets, cfg->n_targets);
1004 oso.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
1005 if (cfg->sampling) {
1006 oso.sampling_rate = *cfg->sampling;
1009 oso.polling_interval = SFL_DEFAULT_POLLING_INTERVAL;
1011 oso.polling_interval = *cfg->polling;
1014 oso.header_len = SFL_DEFAULT_HEADER_SIZE;
1016 oso.header_len = *cfg->header;
1019 oso.sub_id = (*sflow_bridge_number)++;
1020 oso.agent_device = cfg->agent;
1022 oso.control_ip = NULL;
1023 n_controllers = bridge_get_controllers(br, &controllers);
1024 for (i = 0; i < n_controllers; i++) {
1025 if (controllers[i]->local_ip) {
1026 oso.control_ip = controllers[i]->local_ip;
1030 ofproto_set_sflow(br->ofproto, &oso);
1032 sset_destroy(&oso.targets);
1035 /* Returns whether a IPFIX row is valid. */
1037 ovsrec_ipfix_is_valid(const struct ovsrec_ipfix *ipfix)
1039 return ipfix && ipfix->n_targets > 0;
1042 /* Returns whether a Flow_Sample_Collector_Set row is valid. */
1044 ovsrec_fscs_is_valid(const struct ovsrec_flow_sample_collector_set *fscs,
1045 const struct bridge *br)
1047 return ovsrec_ipfix_is_valid(fscs->ipfix) && fscs->bridge == br->cfg;
1050 /* Set IPFIX configuration on 'br'. */
1052 bridge_configure_ipfix(struct bridge *br)
1054 const struct ovsrec_ipfix *be_cfg = br->cfg->ipfix;
1055 bool valid_be_cfg = ovsrec_ipfix_is_valid(be_cfg);
1056 const struct ovsrec_flow_sample_collector_set *fe_cfg;
1057 struct ofproto_ipfix_bridge_exporter_options be_opts;
1058 struct ofproto_ipfix_flow_exporter_options *fe_opts = NULL;
1059 size_t n_fe_opts = 0;
1061 OVSREC_FLOW_SAMPLE_COLLECTOR_SET_FOR_EACH(fe_cfg, idl) {
1062 if (ovsrec_fscs_is_valid(fe_cfg, br)) {
1067 if (!valid_be_cfg && n_fe_opts == 0) {
1068 ofproto_set_ipfix(br->ofproto, NULL, NULL, 0);
1073 memset(&be_opts, 0, sizeof be_opts);
1075 sset_init(&be_opts.targets);
1076 sset_add_array(&be_opts.targets, be_cfg->targets, be_cfg->n_targets);
1078 if (be_cfg->sampling) {
1079 be_opts.sampling_rate = *be_cfg->sampling;
1081 be_opts.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
1083 if (be_cfg->obs_domain_id) {
1084 be_opts.obs_domain_id = *be_cfg->obs_domain_id;
1086 if (be_cfg->obs_point_id) {
1087 be_opts.obs_point_id = *be_cfg->obs_point_id;
1089 if (be_cfg->cache_active_timeout) {
1090 be_opts.cache_active_timeout = *be_cfg->cache_active_timeout;
1092 if (be_cfg->cache_max_flows) {
1093 be_opts.cache_max_flows = *be_cfg->cache_max_flows;
1097 if (n_fe_opts > 0) {
1098 struct ofproto_ipfix_flow_exporter_options *opts;
1099 fe_opts = xcalloc(n_fe_opts, sizeof *fe_opts);
1101 OVSREC_FLOW_SAMPLE_COLLECTOR_SET_FOR_EACH(fe_cfg, idl) {
1102 if (ovsrec_fscs_is_valid(fe_cfg, br)) {
1103 opts->collector_set_id = fe_cfg->id;
1104 sset_init(&opts->targets);
1105 sset_add_array(&opts->targets, fe_cfg->ipfix->targets,
1106 fe_cfg->ipfix->n_targets);
1107 opts->cache_active_timeout = fe_cfg->ipfix->cache_active_timeout
1108 ? *fe_cfg->ipfix->cache_active_timeout : 0;
1109 opts->cache_max_flows = fe_cfg->ipfix->cache_max_flows
1110 ? *fe_cfg->ipfix->cache_max_flows : 0;
1116 ofproto_set_ipfix(br->ofproto, valid_be_cfg ? &be_opts : NULL, fe_opts,
1120 sset_destroy(&be_opts.targets);
1123 if (n_fe_opts > 0) {
1124 struct ofproto_ipfix_flow_exporter_options *opts = fe_opts;
1126 for (i = 0; i < n_fe_opts; i++) {
1127 sset_destroy(&opts->targets);
1135 port_configure_stp(const struct ofproto *ofproto, struct port *port,
1136 struct ofproto_port_stp_settings *port_s,
1137 int *port_num_counter, unsigned long *port_num_bitmap)
1139 const char *config_str;
1140 struct iface *iface;
1142 if (!smap_get_bool(&port->cfg->other_config, "stp-enable", true)) {
1143 port_s->enable = false;
1146 port_s->enable = true;
1149 /* STP over bonds is not supported. */
1150 if (!list_is_singleton(&port->ifaces)) {
1151 VLOG_ERR("port %s: cannot enable STP on bonds, disabling",
1153 port_s->enable = false;
1157 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
1159 /* Internal ports shouldn't participate in spanning tree, so
1161 if (!strcmp(iface->type, "internal")) {
1162 VLOG_DBG("port %s: disable STP on internal ports", port->name);
1163 port_s->enable = false;
1167 /* STP on mirror output ports is not supported. */
1168 if (ofproto_is_mirror_output_bundle(ofproto, port)) {
1169 VLOG_DBG("port %s: disable STP on mirror ports", port->name);
1170 port_s->enable = false;
1174 config_str = smap_get(&port->cfg->other_config, "stp-port-num");
1176 unsigned long int port_num = strtoul(config_str, NULL, 0);
1177 int port_idx = port_num - 1;
1179 if (port_num < 1 || port_num > STP_MAX_PORTS) {
1180 VLOG_ERR("port %s: invalid stp-port-num", port->name);
1181 port_s->enable = false;
1185 if (bitmap_is_set(port_num_bitmap, port_idx)) {
1186 VLOG_ERR("port %s: duplicate stp-port-num %lu, disabling",
1187 port->name, port_num);
1188 port_s->enable = false;
1191 bitmap_set1(port_num_bitmap, port_idx);
1192 port_s->port_num = port_idx;
1194 if (*port_num_counter >= STP_MAX_PORTS) {
1195 VLOG_ERR("port %s: too many STP ports, disabling", port->name);
1196 port_s->enable = false;
1200 port_s->port_num = (*port_num_counter)++;
1203 config_str = smap_get(&port->cfg->other_config, "stp-path-cost");
1205 port_s->path_cost = strtoul(config_str, NULL, 10);
1207 enum netdev_features current;
1210 netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
1211 mbps = netdev_features_to_bps(current, 100 * 1000 * 1000) / 1000000;
1212 port_s->path_cost = stp_convert_speed_to_cost(mbps);
1215 config_str = smap_get(&port->cfg->other_config, "stp-port-priority");
1217 port_s->priority = strtoul(config_str, NULL, 0);
1219 port_s->priority = STP_DEFAULT_PORT_PRIORITY;
1223 /* Set spanning tree configuration on 'br'. */
1225 bridge_configure_stp(struct bridge *br)
1227 if (!br->cfg->stp_enable) {
1228 ofproto_set_stp(br->ofproto, NULL);
1230 struct ofproto_stp_settings br_s;
1231 const char *config_str;
1233 int port_num_counter;
1234 unsigned long *port_num_bitmap;
1236 config_str = smap_get(&br->cfg->other_config, "stp-system-id");
1238 uint8_t ea[ETH_ADDR_LEN];
1240 if (eth_addr_from_string(config_str, ea)) {
1241 br_s.system_id = eth_addr_to_uint64(ea);
1243 br_s.system_id = eth_addr_to_uint64(br->ea);
1244 VLOG_ERR("bridge %s: invalid stp-system-id, defaulting "
1245 "to "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(br->ea));
1248 br_s.system_id = eth_addr_to_uint64(br->ea);
1251 config_str = smap_get(&br->cfg->other_config, "stp-priority");
1253 br_s.priority = strtoul(config_str, NULL, 0);
1255 br_s.priority = STP_DEFAULT_BRIDGE_PRIORITY;
1258 config_str = smap_get(&br->cfg->other_config, "stp-hello-time");
1260 br_s.hello_time = strtoul(config_str, NULL, 10) * 1000;
1262 br_s.hello_time = STP_DEFAULT_HELLO_TIME;
1265 config_str = smap_get(&br->cfg->other_config, "stp-max-age");
1267 br_s.max_age = strtoul(config_str, NULL, 10) * 1000;
1269 br_s.max_age = STP_DEFAULT_MAX_AGE;
1272 config_str = smap_get(&br->cfg->other_config, "stp-forward-delay");
1274 br_s.fwd_delay = strtoul(config_str, NULL, 10) * 1000;
1276 br_s.fwd_delay = STP_DEFAULT_FWD_DELAY;
1279 /* Configure STP on the bridge. */
1280 if (ofproto_set_stp(br->ofproto, &br_s)) {
1281 VLOG_ERR("bridge %s: could not enable STP", br->name);
1285 /* Users must either set the port number with the "stp-port-num"
1286 * configuration on all ports or none. If manual configuration
1287 * is not done, then we allocate them sequentially. */
1288 port_num_counter = 0;
1289 port_num_bitmap = bitmap_allocate(STP_MAX_PORTS);
1290 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1291 struct ofproto_port_stp_settings port_s;
1292 struct iface *iface;
1294 port_configure_stp(br->ofproto, port, &port_s,
1295 &port_num_counter, port_num_bitmap);
1297 /* As bonds are not supported, just apply configuration to
1298 * all interfaces. */
1299 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1300 if (ofproto_port_set_stp(br->ofproto, iface->ofp_port,
1302 VLOG_ERR("port %s: could not enable STP", port->name);
1308 if (bitmap_scan(port_num_bitmap, 0, STP_MAX_PORTS) != STP_MAX_PORTS
1309 && port_num_counter) {
1310 VLOG_ERR("bridge %s: must manually configure all STP port "
1311 "IDs or none, disabling", br->name);
1312 ofproto_set_stp(br->ofproto, NULL);
1314 bitmap_free(port_num_bitmap);
1319 bridge_has_bond_fake_iface(const struct bridge *br, const char *name)
1321 const struct port *port = port_lookup(br, name);
1322 return port && port_is_bond_fake_iface(port);
1326 port_is_bond_fake_iface(const struct port *port)
1328 return port->cfg->bond_fake_iface && !list_is_short(&port->ifaces);
1332 add_del_bridges(const struct ovsrec_open_vswitch *cfg)
1334 struct bridge *br, *next;
1335 struct shash new_br;
1338 /* Collect new bridges' names and types. */
1339 shash_init(&new_br);
1340 for (i = 0; i < cfg->n_bridges; i++) {
1341 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1342 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
1344 if (strchr(br_cfg->name, '/')) {
1345 /* Prevent remote ovsdb-server users from accessing arbitrary
1346 * directories, e.g. consider a bridge named "../../../etc/". */
1347 VLOG_WARN_RL(&rl, "ignoring bridge with invalid name \"%s\"",
1349 } else if (!shash_add_once(&new_br, br_cfg->name, br_cfg)) {
1350 VLOG_WARN_RL(&rl, "bridge %s specified twice", br_cfg->name);
1354 /* Get rid of deleted bridges or those whose types have changed.
1355 * Update 'cfg' of bridges that still exist. */
1356 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
1357 br->cfg = shash_find_data(&new_br, br->name);
1358 if (!br->cfg || strcmp(br->type, ofproto_normalize_type(
1359 br->cfg->datapath_type))) {
1364 /* Add new bridges. */
1365 for (i = 0; i < cfg->n_bridges; i++) {
1366 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
1367 struct bridge *br = bridge_lookup(br_cfg->name);
1369 bridge_create(br_cfg);
1373 shash_destroy(&new_br);
1376 /* Configures 'netdev' based on the "options" column in 'iface_cfg'.
1377 * Returns 0 if successful, otherwise a positive errno value. */
1379 iface_set_netdev_config(const struct ovsrec_interface *iface_cfg,
1380 struct netdev *netdev)
1382 return netdev_set_config(netdev, &iface_cfg->options);
1385 /* Opens a network device for 'if_cfg' and configures it. Adds the network
1386 * device to br->ofproto and stores the OpenFlow port number in '*ofp_portp'.
1388 * If successful, returns 0 and stores the network device in '*netdevp'. On
1389 * failure, returns a positive errno value and stores NULL in '*netdevp'. */
1391 iface_do_create(const struct bridge *br,
1392 const struct ovsrec_interface *iface_cfg,
1393 const struct ovsrec_port *port_cfg,
1394 ofp_port_t *ofp_portp, struct netdev **netdevp)
1396 struct netdev *netdev = NULL;
1399 if (netdev_is_reserved_name(iface_cfg->name)) {
1400 VLOG_WARN("could not create interface %s, name is reserved",
1406 error = netdev_open(iface_cfg->name,
1407 iface_get_type(iface_cfg, br->cfg), &netdev);
1409 VLOG_WARN("could not open network device %s (%s)",
1410 iface_cfg->name, ovs_strerror(error));
1414 error = iface_set_netdev_config(iface_cfg, netdev);
1419 *ofp_portp = iface_pick_ofport(iface_cfg);
1420 error = ofproto_port_add(br->ofproto, netdev, ofp_portp);
1425 VLOG_INFO("bridge %s: added interface %s on port %d",
1426 br->name, iface_cfg->name, *ofp_portp);
1428 if ((port_cfg->vlan_mode && !strcmp(port_cfg->vlan_mode, "splinter"))
1429 || iface_is_internal(iface_cfg, br->cfg)) {
1430 netdev_turn_flags_on(netdev, NETDEV_UP, NULL);
1438 netdev_close(netdev);
1442 /* Creates a new iface on 'br' based on 'if_cfg'. The new iface has OpenFlow
1443 * port number 'ofp_port'. If ofp_port is OFPP_NONE, an OpenFlow port is
1444 * automatically allocated for the iface. Takes ownership of and
1445 * deallocates 'if_cfg'.
1447 * Return true if an iface is successfully created, false otherwise. */
1449 iface_create(struct bridge *br, const struct ovsrec_interface *iface_cfg,
1450 const struct ovsrec_port *port_cfg)
1452 struct netdev *netdev;
1453 struct iface *iface;
1454 ofp_port_t ofp_port;
1458 /* Do the bits that can fail up front. */
1459 ovs_assert(!iface_lookup(br, iface_cfg->name));
1460 error = iface_do_create(br, iface_cfg, port_cfg, &ofp_port, &netdev);
1462 iface_clear_db_record(iface_cfg);
1466 /* Get or create the port structure. */
1467 port = port_lookup(br, port_cfg->name);
1469 port = port_create(br, port_cfg);
1472 /* Create the iface structure. */
1473 iface = xzalloc(sizeof *iface);
1474 list_push_back(&port->ifaces, &iface->port_elem);
1475 hmap_insert(&br->iface_by_name, &iface->name_node,
1476 hash_string(iface_cfg->name, 0));
1478 iface->name = xstrdup(iface_cfg->name);
1479 iface->ofp_port = ofp_port;
1480 iface->netdev = netdev;
1481 iface->type = iface_get_type(iface_cfg, br->cfg);
1482 iface->cfg = iface_cfg;
1483 hmap_insert(&br->ifaces, &iface->ofp_port_node,
1484 hash_ofp_port(ofp_port));
1486 /* Populate initial status in database. */
1487 iface_refresh_stats(iface);
1488 iface_refresh_status(iface);
1490 /* Add bond fake iface if necessary. */
1491 if (port_is_bond_fake_iface(port)) {
1492 struct ofproto_port ofproto_port;
1494 if (ofproto_port_query_by_name(br->ofproto, port->name,
1496 struct netdev *netdev;
1499 error = netdev_open(port->name, "internal", &netdev);
1501 ofp_port_t fake_ofp_port = OFPP_NONE;
1502 ofproto_port_add(br->ofproto, netdev, &fake_ofp_port);
1503 netdev_close(netdev);
1505 VLOG_WARN("could not open network device %s (%s)",
1506 port->name, ovs_strerror(error));
1509 /* Already exists, nothing to do. */
1510 ofproto_port_destroy(&ofproto_port);
1517 /* Set forward BPDU option. */
1519 bridge_configure_forward_bpdu(struct bridge *br)
1521 ofproto_set_forward_bpdu(br->ofproto,
1522 smap_get_bool(&br->cfg->other_config,
1527 /* Set MAC learning table configuration for 'br'. */
1529 bridge_configure_mac_table(struct bridge *br)
1531 const char *idle_time_str;
1534 const char *mac_table_size_str;
1537 idle_time_str = smap_get(&br->cfg->other_config, "mac-aging-time");
1538 idle_time = (idle_time_str && atoi(idle_time_str)
1539 ? atoi(idle_time_str)
1540 : MAC_ENTRY_DEFAULT_IDLE_TIME);
1542 mac_table_size_str = smap_get(&br->cfg->other_config, "mac-table-size");
1543 mac_table_size = (mac_table_size_str && atoi(mac_table_size_str)
1544 ? atoi(mac_table_size_str)
1547 ofproto_set_mac_table_config(br->ofproto, idle_time, mac_table_size);
1551 bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
1552 struct iface **hw_addr_iface)
1554 struct hmapx mirror_output_ports;
1557 bool found_addr = false;
1561 *hw_addr_iface = NULL;
1563 /* Did the user request a particular MAC? */
1564 hwaddr = smap_get(&br->cfg->other_config, "hwaddr");
1565 if (hwaddr && eth_addr_from_string(hwaddr, ea)) {
1566 if (eth_addr_is_multicast(ea)) {
1567 VLOG_ERR("bridge %s: cannot set MAC address to multicast "
1568 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1569 } else if (eth_addr_is_zero(ea)) {
1570 VLOG_ERR("bridge %s: cannot set MAC address to zero", br->name);
1576 /* Mirror output ports don't participate in picking the local hardware
1577 * address. ofproto can't help us find out whether a given port is a
1578 * mirror output because we haven't configured mirrors yet, so we need to
1579 * accumulate them ourselves. */
1580 hmapx_init(&mirror_output_ports);
1581 for (i = 0; i < br->cfg->n_mirrors; i++) {
1582 struct ovsrec_mirror *m = br->cfg->mirrors[i];
1583 if (m->output_port) {
1584 hmapx_add(&mirror_output_ports, m->output_port);
1588 /* Otherwise choose the minimum non-local MAC address among all of the
1590 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1591 uint8_t iface_ea[ETH_ADDR_LEN];
1592 struct iface *candidate;
1593 struct iface *iface;
1595 /* Mirror output ports don't participate. */
1596 if (hmapx_contains(&mirror_output_ports, port->cfg)) {
1600 /* Choose the MAC address to represent the port. */
1602 if (port->cfg->mac && eth_addr_from_string(port->cfg->mac, iface_ea)) {
1603 /* Find the interface with this Ethernet address (if any) so that
1604 * we can provide the correct devname to the caller. */
1605 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1606 uint8_t candidate_ea[ETH_ADDR_LEN];
1607 if (!netdev_get_etheraddr(candidate->netdev, candidate_ea)
1608 && eth_addr_equals(iface_ea, candidate_ea)) {
1613 /* Choose the interface whose MAC address will represent the port.
1614 * The Linux kernel bonding code always chooses the MAC address of
1615 * the first slave added to a bond, and the Fedora networking
1616 * scripts always add slaves to a bond in alphabetical order, so
1617 * for compatibility we choose the interface with the name that is
1618 * first in alphabetical order. */
1619 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1620 if (!iface || strcmp(candidate->name, iface->name) < 0) {
1625 /* The local port doesn't count (since we're trying to choose its
1626 * MAC address anyway). */
1627 if (iface->ofp_port == OFPP_LOCAL) {
1632 error = netdev_get_etheraddr(iface->netdev, iface_ea);
1638 /* Compare against our current choice. */
1639 if (!eth_addr_is_multicast(iface_ea) &&
1640 !eth_addr_is_local(iface_ea) &&
1641 !eth_addr_is_reserved(iface_ea) &&
1642 !eth_addr_is_zero(iface_ea) &&
1643 (!found_addr || eth_addr_compare_3way(iface_ea, ea) < 0))
1645 memcpy(ea, iface_ea, ETH_ADDR_LEN);
1646 *hw_addr_iface = iface;
1652 memcpy(ea, br->default_ea, ETH_ADDR_LEN);
1653 *hw_addr_iface = NULL;
1656 hmapx_destroy(&mirror_output_ports);
1659 /* Choose and returns the datapath ID for bridge 'br' given that the bridge
1660 * Ethernet address is 'bridge_ea'. If 'bridge_ea' is the Ethernet address of
1661 * an interface on 'br', then that interface must be passed in as
1662 * 'hw_addr_iface'; if 'bridge_ea' was derived some other way, then
1663 * 'hw_addr_iface' must be passed in as a null pointer. */
1665 bridge_pick_datapath_id(struct bridge *br,
1666 const uint8_t bridge_ea[ETH_ADDR_LEN],
1667 struct iface *hw_addr_iface)
1670 * The procedure for choosing a bridge MAC address will, in the most
1671 * ordinary case, also choose a unique MAC that we can use as a datapath
1672 * ID. In some special cases, though, multiple bridges will end up with
1673 * the same MAC address. This is OK for the bridges, but it will confuse
1674 * the OpenFlow controller, because each datapath needs a unique datapath
1677 * Datapath IDs must be unique. It is also very desirable that they be
1678 * stable from one run to the next, so that policy set on a datapath
1681 const char *datapath_id;
1684 datapath_id = smap_get(&br->cfg->other_config, "datapath-id");
1685 if (datapath_id && dpid_from_string(datapath_id, &dpid)) {
1689 if (!hw_addr_iface) {
1691 * A purely internal bridge, that is, one that has no non-virtual
1692 * network devices on it at all, is difficult because it has no
1693 * natural unique identifier at all.
1695 * When the host is a XenServer, we handle this case by hashing the
1696 * host's UUID with the name of the bridge. Names of bridges are
1697 * persistent across XenServer reboots, although they can be reused if
1698 * an internal network is destroyed and then a new one is later
1699 * created, so this is fairly effective.
1701 * When the host is not a XenServer, we punt by using a random MAC
1702 * address on each run.
1704 const char *host_uuid = xenserver_get_host_uuid();
1706 char *combined = xasprintf("%s,%s", host_uuid, br->name);
1707 dpid = dpid_from_hash(combined, strlen(combined));
1713 return eth_addr_to_uint64(bridge_ea);
1717 dpid_from_hash(const void *data, size_t n)
1719 uint8_t hash[SHA1_DIGEST_SIZE];
1721 BUILD_ASSERT_DECL(sizeof hash >= ETH_ADDR_LEN);
1722 sha1_bytes(data, n, hash);
1723 eth_addr_mark_random(hash);
1724 return eth_addr_to_uint64(hash);
1728 iface_refresh_status(struct iface *iface)
1732 enum netdev_features current;
1736 uint8_t mac[ETH_ADDR_LEN];
1740 if (iface_is_synthetic(iface)) {
1746 if (!netdev_get_status(iface->netdev, &smap)) {
1747 ovsrec_interface_set_status(iface->cfg, &smap);
1749 ovsrec_interface_set_status(iface->cfg, NULL);
1752 smap_destroy(&smap);
1754 error = netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
1755 bps = !error ? netdev_features_to_bps(current, 0) : 0;
1757 ovsrec_interface_set_duplex(iface->cfg,
1758 netdev_features_is_full_duplex(current)
1760 ovsrec_interface_set_link_speed(iface->cfg, &bps, 1);
1762 ovsrec_interface_set_duplex(iface->cfg, NULL);
1763 ovsrec_interface_set_link_speed(iface->cfg, NULL, 0);
1766 error = netdev_get_mtu(iface->netdev, &mtu);
1769 ovsrec_interface_set_mtu(iface->cfg, &mtu_64, 1);
1771 ovsrec_interface_set_mtu(iface->cfg, NULL, 0);
1774 error = netdev_get_etheraddr(iface->netdev, mac);
1776 char mac_string[32];
1778 sprintf(mac_string, ETH_ADDR_FMT, ETH_ADDR_ARGS(mac));
1779 ovsrec_interface_set_mac_in_use(iface->cfg, mac_string);
1781 ovsrec_interface_set_mac_in_use(iface->cfg, NULL);
1784 /* The netdev may return a negative number (such as -EOPNOTSUPP)
1785 * if there is no valid ifindex number. */
1786 ifindex64 = netdev_get_ifindex(iface->netdev);
1787 if (ifindex64 < 0) {
1790 ovsrec_interface_set_ifindex(iface->cfg, &ifindex64, 1);
1793 /* Writes 'iface''s CFM statistics to the database. 'iface' must not be
1796 iface_refresh_cfm_stats(struct iface *iface)
1798 const struct ovsrec_interface *cfg = iface->cfg;
1799 struct ofproto_cfm_status status;
1801 if (!ofproto_port_get_cfm_status(iface->port->bridge->ofproto,
1802 iface->ofp_port, &status)) {
1803 ovsrec_interface_set_cfm_fault(cfg, NULL, 0);
1804 ovsrec_interface_set_cfm_fault_status(cfg, NULL, 0);
1805 ovsrec_interface_set_cfm_remote_opstate(cfg, NULL);
1806 ovsrec_interface_set_cfm_flap_count(cfg, NULL, 0);
1807 ovsrec_interface_set_cfm_health(cfg, NULL, 0);
1808 ovsrec_interface_set_cfm_remote_mpids(cfg, NULL, 0);
1810 const char *reasons[CFM_FAULT_N_REASONS];
1811 int64_t cfm_health = status.health;
1812 int64_t cfm_flap_count = status.flap_count;
1813 bool faulted = status.faults != 0;
1816 ovsrec_interface_set_cfm_fault(cfg, &faulted, 1);
1819 for (i = 0; i < CFM_FAULT_N_REASONS; i++) {
1820 int reason = 1 << i;
1821 if (status.faults & reason) {
1822 reasons[j++] = cfm_fault_reason_to_str(reason);
1825 ovsrec_interface_set_cfm_fault_status(cfg, (char **) reasons, j);
1827 ovsrec_interface_set_cfm_flap_count(cfg, &cfm_flap_count, 1);
1829 if (status.remote_opstate >= 0) {
1830 const char *remote_opstate = status.remote_opstate ? "up" : "down";
1831 ovsrec_interface_set_cfm_remote_opstate(cfg, remote_opstate);
1833 ovsrec_interface_set_cfm_remote_opstate(cfg, NULL);
1836 ovsrec_interface_set_cfm_remote_mpids(cfg,
1837 (const int64_t *)status.rmps,
1839 if (cfm_health >= 0) {
1840 ovsrec_interface_set_cfm_health(cfg, &cfm_health, 1);
1842 ovsrec_interface_set_cfm_health(cfg, NULL, 0);
1850 iface_refresh_stats(struct iface *iface)
1852 #define IFACE_STATS \
1853 IFACE_STAT(rx_packets, "rx_packets") \
1854 IFACE_STAT(tx_packets, "tx_packets") \
1855 IFACE_STAT(rx_bytes, "rx_bytes") \
1856 IFACE_STAT(tx_bytes, "tx_bytes") \
1857 IFACE_STAT(rx_dropped, "rx_dropped") \
1858 IFACE_STAT(tx_dropped, "tx_dropped") \
1859 IFACE_STAT(rx_errors, "rx_errors") \
1860 IFACE_STAT(tx_errors, "tx_errors") \
1861 IFACE_STAT(rx_frame_errors, "rx_frame_err") \
1862 IFACE_STAT(rx_over_errors, "rx_over_err") \
1863 IFACE_STAT(rx_crc_errors, "rx_crc_err") \
1864 IFACE_STAT(collisions, "collisions")
1866 #define IFACE_STAT(MEMBER, NAME) + 1
1867 enum { N_IFACE_STATS = IFACE_STATS };
1869 int64_t values[N_IFACE_STATS];
1870 char *keys[N_IFACE_STATS];
1873 struct netdev_stats stats;
1875 if (iface_is_synthetic(iface)) {
1879 /* Intentionally ignore return value, since errors will set 'stats' to
1880 * all-1s, and we will deal with that correctly below. */
1881 netdev_get_stats(iface->netdev, &stats);
1883 /* Copy statistics into keys[] and values[]. */
1885 #define IFACE_STAT(MEMBER, NAME) \
1886 if (stats.MEMBER != UINT64_MAX) { \
1888 values[n] = stats.MEMBER; \
1893 ovs_assert(n <= N_IFACE_STATS);
1895 ovsrec_interface_set_statistics(iface->cfg, keys, values, n);
1900 br_refresh_stp_status(struct bridge *br)
1902 struct smap smap = SMAP_INITIALIZER(&smap);
1903 struct ofproto *ofproto = br->ofproto;
1904 struct ofproto_stp_status status;
1906 if (ofproto_get_stp_status(ofproto, &status)) {
1910 if (!status.enabled) {
1911 ovsrec_bridge_set_status(br->cfg, NULL);
1915 smap_add_format(&smap, "stp_bridge_id", STP_ID_FMT,
1916 STP_ID_ARGS(status.bridge_id));
1917 smap_add_format(&smap, "stp_designated_root", STP_ID_FMT,
1918 STP_ID_ARGS(status.designated_root));
1919 smap_add_format(&smap, "stp_root_path_cost", "%d", status.root_path_cost);
1921 ovsrec_bridge_set_status(br->cfg, &smap);
1922 smap_destroy(&smap);
1926 port_refresh_stp_status(struct port *port)
1928 struct ofproto *ofproto = port->bridge->ofproto;
1929 struct iface *iface;
1930 struct ofproto_port_stp_status status;
1933 if (port_is_synthetic(port)) {
1937 /* STP doesn't currently support bonds. */
1938 if (!list_is_singleton(&port->ifaces)) {
1939 ovsrec_port_set_status(port->cfg, NULL);
1943 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
1944 if (ofproto_port_get_stp_status(ofproto, iface->ofp_port, &status)) {
1948 if (!status.enabled) {
1949 ovsrec_port_set_status(port->cfg, NULL);
1953 /* Set Status column. */
1955 smap_add_format(&smap, "stp_port_id", STP_PORT_ID_FMT, status.port_id);
1956 smap_add(&smap, "stp_state", stp_state_name(status.state));
1957 smap_add_format(&smap, "stp_sec_in_state", "%u", status.sec_in_state);
1958 smap_add(&smap, "stp_role", stp_role_name(status.role));
1959 ovsrec_port_set_status(port->cfg, &smap);
1960 smap_destroy(&smap);
1964 port_refresh_stp_stats(struct port *port)
1966 struct ofproto *ofproto = port->bridge->ofproto;
1967 struct iface *iface;
1968 struct ofproto_port_stp_stats stats;
1970 int64_t int_values[3];
1972 if (port_is_synthetic(port)) {
1976 /* STP doesn't currently support bonds. */
1977 if (!list_is_singleton(&port->ifaces)) {
1981 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
1982 if (ofproto_port_get_stp_stats(ofproto, iface->ofp_port, &stats)) {
1986 if (!stats.enabled) {
1987 ovsrec_port_set_statistics(port->cfg, NULL, NULL, 0);
1991 /* Set Statistics column. */
1992 keys[0] = "stp_tx_count";
1993 int_values[0] = stats.tx_count;
1994 keys[1] = "stp_rx_count";
1995 int_values[1] = stats.rx_count;
1996 keys[2] = "stp_error_count";
1997 int_values[2] = stats.error_count;
1999 ovsrec_port_set_statistics(port->cfg, keys, int_values,
2000 ARRAY_SIZE(int_values));
2004 enable_system_stats(const struct ovsrec_open_vswitch *cfg)
2006 return smap_get_bool(&cfg->other_config, "enable-statistics", false);
2010 reconfigure_system_stats(const struct ovsrec_open_vswitch *cfg)
2012 bool enable = enable_system_stats(cfg);
2014 system_stats_enable(enable);
2016 ovsrec_open_vswitch_set_statistics(cfg, NULL);
2021 run_system_stats(void)
2023 const struct ovsrec_open_vswitch *cfg = ovsrec_open_vswitch_first(idl);
2026 stats = system_stats_run();
2028 struct ovsdb_idl_txn *txn;
2029 struct ovsdb_datum datum;
2031 txn = ovsdb_idl_txn_create(idl);
2032 ovsdb_datum_from_smap(&datum, stats);
2033 ovsdb_idl_txn_write(&cfg->header_, &ovsrec_open_vswitch_col_statistics,
2035 ovsdb_idl_txn_commit(txn);
2036 ovsdb_idl_txn_destroy(txn);
2043 ofp12_controller_role_to_str(enum ofp12_controller_role role)
2046 case OFPCR12_ROLE_EQUAL:
2048 case OFPCR12_ROLE_MASTER:
2050 case OFPCR12_ROLE_SLAVE:
2052 case OFPCR12_ROLE_NOCHANGE:
2054 return "*** INVALID ROLE ***";
2059 refresh_controller_status(void)
2063 const struct ovsrec_controller *cfg;
2067 /* Accumulate status for controllers on all bridges. */
2068 HMAP_FOR_EACH (br, node, &all_bridges) {
2069 ofproto_get_ofproto_controller_info(br->ofproto, &info);
2072 /* Update each controller in the database with current status. */
2073 OVSREC_CONTROLLER_FOR_EACH(cfg, idl) {
2074 struct ofproto_controller_info *cinfo =
2075 shash_find_data(&info, cfg->target);
2078 struct smap smap = SMAP_INITIALIZER(&smap);
2079 const char **values = cinfo->pairs.values;
2080 const char **keys = cinfo->pairs.keys;
2083 for (i = 0; i < cinfo->pairs.n; i++) {
2084 smap_add(&smap, keys[i], values[i]);
2087 ovsrec_controller_set_is_connected(cfg, cinfo->is_connected);
2088 ovsrec_controller_set_role(cfg, ofp12_controller_role_to_str(
2090 ovsrec_controller_set_status(cfg, &smap);
2091 smap_destroy(&smap);
2093 ovsrec_controller_set_is_connected(cfg, false);
2094 ovsrec_controller_set_role(cfg, NULL);
2095 ovsrec_controller_set_status(cfg, NULL);
2099 ofproto_free_ofproto_controller_info(&info);
2104 * Some information in the database must be kept as up-to-date as possible to
2105 * allow controllers to respond rapidly to network outages. We call these
2106 * statistics "instant" stats.
2108 * We wish to update these statistics every INSTANT_INTERVAL_MSEC milliseconds,
2109 * assuming that they've changed. The only means we have to determine whether
2110 * they have changed are:
2112 * - Try to commit changes to the database. If nothing changed, then
2113 * ovsdb_idl_txn_commit() returns TXN_UNCHANGED, otherwise some other
2116 * - instant_stats_run() is called late in the run loop, after anything that
2117 * might change any of the instant stats.
2119 * We use these two facts together to avoid waking the process up every
2120 * INSTANT_INTERVAL_MSEC whether there is any change or not.
2123 /* Minimum interval between writing updates to the instant stats to the
2125 #define INSTANT_INTERVAL_MSEC 100
2127 /* Current instant stats database transaction, NULL if there is no ongoing
2129 static struct ovsdb_idl_txn *instant_txn;
2131 /* Next time (in msec on monotonic clock) at which we will update the instant
2133 static long long int instant_next_txn = LLONG_MIN;
2135 /* True if the run loop has run since we last saw that the instant stats were
2136 * unchanged, that is, this is true if we need to wake up at 'instant_next_txn'
2137 * to refresh the instant stats. */
2138 static bool instant_stats_could_have_changed;
2141 instant_stats_run(void)
2143 enum ovsdb_idl_txn_status status;
2145 instant_stats_could_have_changed = true;
2151 if (time_msec() < instant_next_txn) {
2154 instant_next_txn = time_msec() + INSTANT_INTERVAL_MSEC;
2156 seq = seq_read(connectivity_seq_get());
2157 if (seq == connectivity_seqno) {
2160 connectivity_seqno = seq;
2162 instant_txn = ovsdb_idl_txn_create(idl);
2163 HMAP_FOR_EACH (br, node, &all_bridges) {
2164 struct iface *iface;
2167 br_refresh_stp_status(br);
2169 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
2170 port_refresh_stp_status(port);
2173 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
2174 enum netdev_flags flags;
2176 const char *link_state;
2177 int64_t link_resets;
2180 if (iface_is_synthetic(iface)) {
2184 current = ofproto_port_is_lacp_current(br->ofproto,
2188 ovsrec_interface_set_lacp_current(iface->cfg, &bl, 1);
2190 ovsrec_interface_set_lacp_current(iface->cfg, NULL, 0);
2193 error = netdev_get_flags(iface->netdev, &flags);
2195 const char *state = flags & NETDEV_UP ? "up" : "down";
2196 ovsrec_interface_set_admin_state(iface->cfg, state);
2198 ovsrec_interface_set_admin_state(iface->cfg, NULL);
2201 link_state = netdev_get_carrier(iface->netdev) ? "up" : "down";
2202 ovsrec_interface_set_link_state(iface->cfg, link_state);
2204 link_resets = netdev_get_carrier_resets(iface->netdev);
2205 ovsrec_interface_set_link_resets(iface->cfg, &link_resets, 1);
2207 iface_refresh_cfm_stats(iface);
2210 ofproto_port_get_bfd_status(br->ofproto, iface->ofp_port,
2212 ovsrec_interface_set_bfd_status(iface->cfg, &smap);
2213 smap_destroy(&smap);
2218 status = ovsdb_idl_txn_commit(instant_txn);
2219 if (status != TXN_INCOMPLETE) {
2220 ovsdb_idl_txn_destroy(instant_txn);
2223 if (status == TXN_UNCHANGED) {
2224 instant_stats_could_have_changed = false;
2229 instant_stats_wait(void)
2232 ovsdb_idl_txn_wait(instant_txn);
2233 } else if (instant_stats_could_have_changed) {
2234 poll_timer_wait_until(instant_next_txn);
2245 /* Let each datapath type do the work that it needs to do. */
2247 ofproto_enumerate_types(&types);
2248 SSET_FOR_EACH (type, &types) {
2249 ofproto_type_run(type);
2251 sset_destroy(&types);
2253 /* Let each bridge do the work that it needs to do. */
2254 HMAP_FOR_EACH (br, node, &all_bridges) {
2255 ofproto_run(br->ofproto);
2262 static struct ovsrec_open_vswitch null_cfg;
2263 const struct ovsrec_open_vswitch *cfg;
2265 bool vlan_splinters_changed;
2268 ovsrec_open_vswitch_init(&null_cfg);
2272 if (ovsdb_idl_is_lock_contended(idl)) {
2273 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
2274 struct bridge *br, *next_br;
2276 VLOG_ERR_RL(&rl, "another ovs-vswitchd process is running, "
2277 "disabling this process (pid %ld) until it goes away",
2278 (long int) getpid());
2280 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
2283 /* Since we will not be running system_stats_run() in this process
2284 * with the current situation of multiple ovs-vswitchd daemons,
2285 * disable system stats collection. */
2286 system_stats_enable(false);
2288 } else if (!ovsdb_idl_has_lock(idl)) {
2291 cfg = ovsrec_open_vswitch_first(idl);
2293 /* Initialize the ofproto library. This only needs to run once, but
2294 * it must be done after the configuration is set. If the
2295 * initialization has already occurred, bridge_init_ofproto()
2296 * returns immediately. */
2297 bridge_init_ofproto(cfg);
2299 /* Once the value of flow-restore-wait is false, we no longer should
2300 * check its value from the database. */
2301 if (cfg && ofproto_get_flow_restore_wait()) {
2302 ofproto_set_flow_restore_wait(smap_get_bool(&cfg->other_config,
2303 "flow-restore-wait", false));
2308 /* Re-configure SSL. We do this on every trip through the main loop,
2309 * instead of just when the database changes, because the contents of the
2310 * key and certificate files can change without the database changing.
2312 * We do this before bridge_reconfigure() because that function might
2313 * initiate SSL connections and thus requires SSL to be configured. */
2314 if (cfg && cfg->ssl) {
2315 const struct ovsrec_ssl *ssl = cfg->ssl;
2317 stream_ssl_set_key_and_cert(ssl->private_key, ssl->certificate);
2318 stream_ssl_set_ca_cert_file(ssl->ca_cert, ssl->bootstrap_ca_cert);
2321 /* If VLAN splinters are in use, then we need to reconfigure if VLAN
2322 * usage has changed. */
2323 vlan_splinters_changed = false;
2324 if (vlan_splinters_enabled_anywhere) {
2325 HMAP_FOR_EACH (br, node, &all_bridges) {
2326 if (ofproto_has_vlan_usage_changed(br->ofproto)) {
2327 vlan_splinters_changed = true;
2333 if (ovsdb_idl_get_seqno(idl) != idl_seqno || vlan_splinters_changed) {
2334 struct ovsdb_idl_txn *txn;
2336 idl_seqno = ovsdb_idl_get_seqno(idl);
2337 txn = ovsdb_idl_txn_create(idl);
2338 bridge_reconfigure(cfg ? cfg : &null_cfg);
2341 ovsrec_open_vswitch_set_cur_cfg(cfg, cfg->next_cfg);
2344 /* If we are completing our initial configuration for this run
2345 * of ovs-vswitchd, then keep the transaction around to monitor
2346 * it for completion. */
2347 if (initial_config_done) {
2348 ovsdb_idl_txn_commit(txn);
2349 ovsdb_idl_txn_destroy(txn);
2351 initial_config_done = true;
2352 daemonize_txn = txn;
2356 if (daemonize_txn) {
2357 enum ovsdb_idl_txn_status status = ovsdb_idl_txn_commit(daemonize_txn);
2358 if (status != TXN_INCOMPLETE) {
2359 ovsdb_idl_txn_destroy(daemonize_txn);
2360 daemonize_txn = NULL;
2362 /* ovs-vswitchd has completed initialization, so allow the
2363 * process that forked us to exit successfully. */
2364 daemonize_complete();
2366 vlog_enable_async();
2368 VLOG_INFO_ONCE("%s (Open vSwitch) %s", program_name, VERSION);
2372 /* Refresh interface and mirror stats if necessary. */
2373 if (time_msec() >= iface_stats_timer) {
2375 struct ovsdb_idl_txn *txn;
2377 txn = ovsdb_idl_txn_create(idl);
2378 HMAP_FOR_EACH (br, node, &all_bridges) {
2382 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
2383 struct iface *iface;
2385 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
2386 iface_refresh_stats(iface);
2387 iface_refresh_status(iface);
2390 port_refresh_stp_stats(port);
2393 HMAP_FOR_EACH (m, hmap_node, &br->mirrors) {
2394 mirror_refresh_stats(m);
2398 refresh_controller_status();
2399 ovsdb_idl_txn_commit(txn);
2400 ovsdb_idl_txn_destroy(txn); /* XXX */
2403 iface_stats_timer = time_msec() + IFACE_STATS_INTERVAL;
2407 instant_stats_run();
2416 ovsdb_idl_wait(idl);
2417 if (daemonize_txn) {
2418 ovsdb_idl_txn_wait(daemonize_txn);
2422 ofproto_enumerate_types(&types);
2423 SSET_FOR_EACH (type, &types) {
2424 ofproto_type_wait(type);
2426 sset_destroy(&types);
2428 if (!hmap_is_empty(&all_bridges)) {
2431 HMAP_FOR_EACH (br, node, &all_bridges) {
2432 ofproto_wait(br->ofproto);
2434 poll_timer_wait_until(iface_stats_timer);
2437 system_stats_wait();
2438 instant_stats_wait();
2441 /* Adds some memory usage statistics for bridges into 'usage', for use with
2442 * memory_report(). */
2444 bridge_get_memory_usage(struct simap *usage)
2451 ofproto_enumerate_types(&types);
2452 SSET_FOR_EACH (type, &types) {
2453 ofproto_type_get_memory_usage(type, usage);
2455 sset_destroy(&types);
2457 HMAP_FOR_EACH (br, node, &all_bridges) {
2458 ofproto_get_memory_usage(br->ofproto, usage);
2462 /* QoS unixctl user interface functions. */
2464 struct qos_unixctl_show_cbdata {
2466 struct iface *iface;
2470 qos_unixctl_show_queue(unsigned int queue_id,
2471 const struct smap *details,
2472 struct iface *iface,
2475 struct netdev_queue_stats stats;
2476 struct smap_node *node;
2479 ds_put_cstr(ds, "\n");
2481 ds_put_format(ds, "Queue %u:\n", queue_id);
2483 ds_put_cstr(ds, "Default:\n");
2486 SMAP_FOR_EACH (node, details) {
2487 ds_put_format(ds, "\t%s: %s\n", node->key, node->value);
2490 error = netdev_get_queue_stats(iface->netdev, queue_id, &stats);
2492 if (stats.tx_packets != UINT64_MAX) {
2493 ds_put_format(ds, "\ttx_packets: %"PRIu64"\n", stats.tx_packets);
2496 if (stats.tx_bytes != UINT64_MAX) {
2497 ds_put_format(ds, "\ttx_bytes: %"PRIu64"\n", stats.tx_bytes);
2500 if (stats.tx_errors != UINT64_MAX) {
2501 ds_put_format(ds, "\ttx_errors: %"PRIu64"\n", stats.tx_errors);
2504 ds_put_format(ds, "\tFailed to get statistics for queue %u: %s",
2505 queue_id, ovs_strerror(error));
2510 qos_unixctl_show(struct unixctl_conn *conn, int argc OVS_UNUSED,
2511 const char *argv[], void *aux OVS_UNUSED)
2513 struct ds ds = DS_EMPTY_INITIALIZER;
2514 struct smap smap = SMAP_INITIALIZER(&smap);
2515 struct iface *iface;
2517 struct smap_node *node;
2519 iface = iface_find(argv[1]);
2521 unixctl_command_reply_error(conn, "no such interface");
2525 netdev_get_qos(iface->netdev, &type, &smap);
2527 if (*type != '\0') {
2528 struct netdev_queue_dump dump;
2529 struct smap details;
2530 unsigned int queue_id;
2532 ds_put_format(&ds, "QoS: %s %s\n", iface->name, type);
2534 SMAP_FOR_EACH (node, &smap) {
2535 ds_put_format(&ds, "%s: %s\n", node->key, node->value);
2538 smap_init(&details);
2539 NETDEV_QUEUE_FOR_EACH (&queue_id, &details, &dump, iface->netdev) {
2540 qos_unixctl_show_queue(queue_id, &details, iface, &ds);
2542 smap_destroy(&details);
2544 unixctl_command_reply(conn, ds_cstr(&ds));
2546 ds_put_format(&ds, "QoS not configured on %s\n", iface->name);
2547 unixctl_command_reply_error(conn, ds_cstr(&ds));
2550 smap_destroy(&smap);
2554 /* Bridge reconfiguration functions. */
2556 bridge_create(const struct ovsrec_bridge *br_cfg)
2560 ovs_assert(!bridge_lookup(br_cfg->name));
2561 br = xzalloc(sizeof *br);
2563 br->name = xstrdup(br_cfg->name);
2564 br->type = xstrdup(ofproto_normalize_type(br_cfg->datapath_type));
2567 /* Derive the default Ethernet address from the bridge's UUID. This should
2568 * be unique and it will be stable between ovs-vswitchd runs. */
2569 memcpy(br->default_ea, &br_cfg->header_.uuid, ETH_ADDR_LEN);
2570 eth_addr_mark_random(br->default_ea);
2572 hmap_init(&br->ports);
2573 hmap_init(&br->ifaces);
2574 hmap_init(&br->iface_by_name);
2575 hmap_init(&br->mirrors);
2577 hmap_insert(&all_bridges, &br->node, hash_string(br->name, 0));
2581 bridge_destroy(struct bridge *br)
2584 struct mirror *mirror, *next_mirror;
2585 struct port *port, *next_port;
2587 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
2590 HMAP_FOR_EACH_SAFE (mirror, next_mirror, hmap_node, &br->mirrors) {
2591 mirror_destroy(mirror);
2594 hmap_remove(&all_bridges, &br->node);
2595 ofproto_destroy(br->ofproto);
2596 hmap_destroy(&br->ifaces);
2597 hmap_destroy(&br->ports);
2598 hmap_destroy(&br->iface_by_name);
2599 hmap_destroy(&br->mirrors);
2606 static struct bridge *
2607 bridge_lookup(const char *name)
2611 HMAP_FOR_EACH_WITH_HASH (br, node, hash_string(name, 0), &all_bridges) {
2612 if (!strcmp(br->name, name)) {
2619 /* Handle requests for a listing of all flows known by the OpenFlow
2620 * stack, including those normally hidden. */
2622 bridge_unixctl_dump_flows(struct unixctl_conn *conn, int argc OVS_UNUSED,
2623 const char *argv[], void *aux OVS_UNUSED)
2628 br = bridge_lookup(argv[1]);
2630 unixctl_command_reply_error(conn, "Unknown bridge");
2635 ofproto_get_all_flows(br->ofproto, &results);
2637 unixctl_command_reply(conn, ds_cstr(&results));
2638 ds_destroy(&results);
2641 /* "bridge/reconnect [BRIDGE]": makes BRIDGE drop all of its controller
2642 * connections and reconnect. If BRIDGE is not specified, then all bridges
2643 * drop their controller connections and reconnect. */
2645 bridge_unixctl_reconnect(struct unixctl_conn *conn, int argc,
2646 const char *argv[], void *aux OVS_UNUSED)
2650 br = bridge_lookup(argv[1]);
2652 unixctl_command_reply_error(conn, "Unknown bridge");
2655 ofproto_reconnect_controllers(br->ofproto);
2657 HMAP_FOR_EACH (br, node, &all_bridges) {
2658 ofproto_reconnect_controllers(br->ofproto);
2661 unixctl_command_reply(conn, NULL);
2665 bridge_get_controllers(const struct bridge *br,
2666 struct ovsrec_controller ***controllersp)
2668 struct ovsrec_controller **controllers;
2669 size_t n_controllers;
2671 controllers = br->cfg->controller;
2672 n_controllers = br->cfg->n_controller;
2674 if (n_controllers == 1 && !strcmp(controllers[0]->target, "none")) {
2680 *controllersp = controllers;
2682 return n_controllers;
2686 bridge_collect_wanted_ports(struct bridge *br,
2687 const unsigned long int *splinter_vlans,
2688 struct shash *wanted_ports)
2692 shash_init(wanted_ports);
2694 for (i = 0; i < br->cfg->n_ports; i++) {
2695 const char *name = br->cfg->ports[i]->name;
2696 if (!shash_add_once(wanted_ports, name, br->cfg->ports[i])) {
2697 VLOG_WARN("bridge %s: %s specified twice as bridge port",
2701 if (bridge_get_controllers(br, NULL)
2702 && !shash_find(wanted_ports, br->name)) {
2703 VLOG_WARN("bridge %s: no port named %s, synthesizing one",
2704 br->name, br->name);
2706 ovsrec_interface_init(&br->synth_local_iface);
2707 ovsrec_port_init(&br->synth_local_port);
2709 br->synth_local_port.interfaces = &br->synth_local_ifacep;
2710 br->synth_local_port.n_interfaces = 1;
2711 br->synth_local_port.name = br->name;
2713 br->synth_local_iface.name = br->name;
2714 br->synth_local_iface.type = "internal";
2716 br->synth_local_ifacep = &br->synth_local_iface;
2718 shash_add(wanted_ports, br->name, &br->synth_local_port);
2721 if (splinter_vlans) {
2722 add_vlan_splinter_ports(br, splinter_vlans, wanted_ports);
2726 /* Deletes "struct port"s and "struct iface"s under 'br' which aren't
2727 * consistent with 'br->cfg'. Updates 'br->if_cfg_queue' with interfaces which
2728 * 'br' needs to complete its configuration. */
2730 bridge_del_ports(struct bridge *br, const struct shash *wanted_ports)
2732 struct shash_node *port_node;
2733 struct port *port, *next;
2735 /* Get rid of deleted ports.
2736 * Get rid of deleted interfaces on ports that still exist. */
2737 HMAP_FOR_EACH_SAFE (port, next, hmap_node, &br->ports) {
2738 port->cfg = shash_find_data(wanted_ports, port->name);
2742 port_del_ifaces(port);
2746 /* Update iface->cfg and iface->type in interfaces that still exist. */
2747 SHASH_FOR_EACH (port_node, wanted_ports) {
2748 const struct ovsrec_port *port = port_node->data;
2751 for (i = 0; i < port->n_interfaces; i++) {
2752 const struct ovsrec_interface *cfg = port->interfaces[i];
2753 struct iface *iface = iface_lookup(br, cfg->name);
2754 const char *type = iface_get_type(cfg, br->cfg);
2759 } else if (!strcmp(type, "null")) {
2760 VLOG_WARN_ONCE("%s: The null interface type is deprecated and"
2761 " may be removed in February 2013. Please email"
2762 " dev@openvswitch.org with concerns.",
2765 /* We will add new interfaces later. */
2771 /* Initializes 'oc' appropriately as a management service controller for
2774 * The caller must free oc->target when it is no longer needed. */
2776 bridge_ofproto_controller_for_mgmt(const struct bridge *br,
2777 struct ofproto_controller *oc)
2779 oc->target = xasprintf("punix:%s/%s.mgmt", ovs_rundir(), br->name);
2780 oc->max_backoff = 0;
2781 oc->probe_interval = 60;
2782 oc->band = OFPROTO_OUT_OF_BAND;
2784 oc->burst_limit = 0;
2785 oc->enable_async_msgs = true;
2788 /* Converts ovsrec_controller 'c' into an ofproto_controller in 'oc'. */
2790 bridge_ofproto_controller_from_ovsrec(const struct ovsrec_controller *c,
2791 struct ofproto_controller *oc)
2795 oc->target = c->target;
2796 oc->max_backoff = c->max_backoff ? *c->max_backoff / 1000 : 8;
2797 oc->probe_interval = c->inactivity_probe ? *c->inactivity_probe / 1000 : 5;
2798 oc->band = (!c->connection_mode || !strcmp(c->connection_mode, "in-band")
2799 ? OFPROTO_IN_BAND : OFPROTO_OUT_OF_BAND);
2800 oc->rate_limit = c->controller_rate_limit ? *c->controller_rate_limit : 0;
2801 oc->burst_limit = (c->controller_burst_limit
2802 ? *c->controller_burst_limit : 0);
2803 oc->enable_async_msgs = (!c->enable_async_messages
2804 || *c->enable_async_messages);
2805 dscp = smap_get_int(&c->other_config, "dscp", DSCP_DEFAULT);
2806 if (dscp < 0 || dscp > 63) {
2807 dscp = DSCP_DEFAULT;
2812 /* Configures the IP stack for 'br''s local interface properly according to the
2813 * configuration in 'c'. */
2815 bridge_configure_local_iface_netdev(struct bridge *br,
2816 struct ovsrec_controller *c)
2818 struct netdev *netdev;
2819 struct in_addr mask, gateway;
2821 struct iface *local_iface;
2824 /* If there's no local interface or no IP address, give up. */
2825 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
2826 if (!local_iface || !c->local_ip || !inet_aton(c->local_ip, &ip)) {
2830 /* Bring up the local interface. */
2831 netdev = local_iface->netdev;
2832 netdev_turn_flags_on(netdev, NETDEV_UP, NULL);
2834 /* Configure the IP address and netmask. */
2835 if (!c->local_netmask
2836 || !inet_aton(c->local_netmask, &mask)
2838 mask.s_addr = guess_netmask(ip.s_addr);
2840 if (!netdev_set_in4(netdev, ip, mask)) {
2841 VLOG_INFO("bridge %s: configured IP address "IP_FMT", netmask "IP_FMT,
2842 br->name, IP_ARGS(ip.s_addr), IP_ARGS(mask.s_addr));
2845 /* Configure the default gateway. */
2846 if (c->local_gateway
2847 && inet_aton(c->local_gateway, &gateway)
2848 && gateway.s_addr) {
2849 if (!netdev_add_router(netdev, gateway)) {
2850 VLOG_INFO("bridge %s: configured gateway "IP_FMT,
2851 br->name, IP_ARGS(gateway.s_addr));
2856 /* Returns true if 'a' and 'b' are the same except that any number of slashes
2857 * in either string are treated as equal to any number of slashes in the other,
2858 * e.g. "x///y" is equal to "x/y".
2860 * Also, if 'b_stoplen' bytes from 'b' are found to be equal to corresponding
2861 * bytes from 'a', the function considers this success. Specify 'b_stoplen' as
2862 * SIZE_MAX to compare all of 'a' to all of 'b' rather than just a prefix of
2863 * 'b' against a prefix of 'a'.
2866 equal_pathnames(const char *a, const char *b, size_t b_stoplen)
2868 const char *b_start = b;
2870 if (b - b_start >= b_stoplen) {
2872 } else if (*a != *b) {
2874 } else if (*a == '/') {
2875 a += strspn(a, "/");
2876 b += strspn(b, "/");
2877 } else if (*a == '\0') {
2887 bridge_configure_remotes(struct bridge *br,
2888 const struct sockaddr_in *managers, size_t n_managers)
2890 bool disable_in_band;
2892 struct ovsrec_controller **controllers;
2893 size_t n_controllers;
2895 enum ofproto_fail_mode fail_mode;
2897 struct ofproto_controller *ocs;
2901 /* Check if we should disable in-band control on this bridge. */
2902 disable_in_band = smap_get_bool(&br->cfg->other_config, "disable-in-band",
2905 /* Set OpenFlow queue ID for in-band control. */
2906 ofproto_set_in_band_queue(br->ofproto,
2907 smap_get_int(&br->cfg->other_config,
2908 "in-band-queue", -1));
2910 if (disable_in_band) {
2911 ofproto_set_extra_in_band_remotes(br->ofproto, NULL, 0);
2913 ofproto_set_extra_in_band_remotes(br->ofproto, managers, n_managers);
2916 n_controllers = bridge_get_controllers(br, &controllers);
2918 ocs = xmalloc((n_controllers + 1) * sizeof *ocs);
2921 bridge_ofproto_controller_for_mgmt(br, &ocs[n_ocs++]);
2922 for (i = 0; i < n_controllers; i++) {
2923 struct ovsrec_controller *c = controllers[i];
2925 if (!strncmp(c->target, "punix:", 6)
2926 || !strncmp(c->target, "unix:", 5)) {
2927 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2930 if (!strncmp(c->target, "unix:", 5)) {
2931 /* Connect to a listening socket */
2932 whitelist = xasprintf("unix:%s/", ovs_rundir());
2933 if (strchr(c->target, '/') &&
2934 !equal_pathnames(c->target, whitelist,
2935 strlen(whitelist))) {
2936 /* Absolute path specified, but not in ovs_rundir */
2937 VLOG_ERR_RL(&rl, "bridge %s: Not connecting to socket "
2938 "controller \"%s\" due to possibility for "
2939 "remote exploit. Instead, specify socket "
2940 "in whitelisted \"%s\" or connect to "
2941 "\"unix:%s/%s.mgmt\" (which is always "
2942 "available without special configuration).",
2943 br->name, c->target, whitelist,
2944 ovs_rundir(), br->name);
2949 whitelist = xasprintf("punix:%s/%s.controller",
2950 ovs_rundir(), br->name);
2951 if (!equal_pathnames(c->target, whitelist, SIZE_MAX)) {
2952 /* Prevent remote ovsdb-server users from accessing
2953 * arbitrary Unix domain sockets and overwriting arbitrary
2955 VLOG_ERR_RL(&rl, "bridge %s: Not adding Unix domain socket "
2956 "controller \"%s\" due to possibility of "
2957 "overwriting local files. Instead, specify "
2958 "whitelisted \"%s\" or connect to "
2959 "\"unix:%s/%s.mgmt\" (which is always "
2960 "available without special configuration).",
2961 br->name, c->target, whitelist,
2962 ovs_rundir(), br->name);
2971 bridge_configure_local_iface_netdev(br, c);
2972 bridge_ofproto_controller_from_ovsrec(c, &ocs[n_ocs]);
2973 if (disable_in_band) {
2974 ocs[n_ocs].band = OFPROTO_OUT_OF_BAND;
2979 ofproto_set_controllers(br->ofproto, ocs, n_ocs,
2980 bridge_get_allowed_versions(br));
2981 free(ocs[0].target); /* From bridge_ofproto_controller_for_mgmt(). */
2984 /* Set the fail-mode. */
2985 fail_mode = !br->cfg->fail_mode
2986 || !strcmp(br->cfg->fail_mode, "standalone")
2987 ? OFPROTO_FAIL_STANDALONE
2988 : OFPROTO_FAIL_SECURE;
2989 ofproto_set_fail_mode(br->ofproto, fail_mode);
2991 /* Configure OpenFlow controller connection snooping. */
2992 if (!ofproto_has_snoops(br->ofproto)) {
2996 sset_add_and_free(&snoops, xasprintf("punix:%s/%s.snoop",
2997 ovs_rundir(), br->name));
2998 ofproto_set_snoops(br->ofproto, &snoops);
2999 sset_destroy(&snoops);
3004 bridge_configure_tables(struct bridge *br)
3006 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
3010 n_tables = ofproto_get_n_tables(br->ofproto);
3012 for (i = 0; i < n_tables; i++) {
3013 struct ofproto_table_settings s;
3016 s.max_flows = UINT_MAX;
3019 s.n_prefix_fields = 0;
3020 memset(s.prefix_fields, ~0, sizeof(s.prefix_fields));
3022 if (j < br->cfg->n_flow_tables && i == br->cfg->key_flow_tables[j]) {
3023 struct ovsrec_flow_table *cfg = br->cfg->value_flow_tables[j++];
3026 if (cfg->n_flow_limit && *cfg->flow_limit < UINT_MAX) {
3027 s.max_flows = *cfg->flow_limit;
3029 if (cfg->overflow_policy
3030 && !strcmp(cfg->overflow_policy, "evict")) {
3032 s.groups = xmalloc(cfg->n_groups * sizeof *s.groups);
3033 for (k = 0; k < cfg->n_groups; k++) {
3034 const char *string = cfg->groups[k];
3037 msg = mf_parse_subfield__(&s.groups[k], &string);
3039 VLOG_WARN_RL(&rl, "bridge %s table %d: error parsing "
3040 "'groups' (%s)", br->name, i, msg);
3042 } else if (*string) {
3043 VLOG_WARN_RL(&rl, "bridge %s table %d: 'groups' "
3044 "element '%s' contains trailing garbage",
3045 br->name, i, cfg->groups[k]);
3051 /* Prefix lookup fields. */
3052 s.n_prefix_fields = 0;
3053 for (k = 0; k < cfg->n_prefixes; k++) {
3054 const char *name = cfg->prefixes[k];
3055 const struct mf_field *mf = mf_from_name(name);
3057 VLOG_WARN("bridge %s: 'prefixes' with unknown field: %s",
3061 if (mf->flow_be32ofs < 0 || mf->n_bits % 32) {
3062 VLOG_WARN("bridge %s: 'prefixes' with incompatible field: "
3063 "%s", br->name, name);
3066 if (s.n_prefix_fields >= ARRAY_SIZE(s.prefix_fields)) {
3067 VLOG_WARN("bridge %s: 'prefixes' with too many fields, "
3068 "field not used: %s", br->name, name);
3071 s.prefix_fields[s.n_prefix_fields++] = mf->id;
3073 if (s.n_prefix_fields > 0) {
3075 struct ds ds = DS_EMPTY_INITIALIZER;
3076 for (k = 0; k < s.n_prefix_fields; k++) {
3078 ds_put_char(&ds, ',');
3080 ds_put_cstr(&ds, mf_from_id(s.prefix_fields[k])->name);
3082 VLOG_INFO("bridge %s table %d: Prefix lookup with: %s.",
3083 br->name, i, ds_cstr(&ds));
3088 ofproto_configure_table(br->ofproto, i, &s);
3092 for (; j < br->cfg->n_flow_tables; j++) {
3093 VLOG_WARN_RL(&rl, "bridge %s: ignoring configuration for flow table "
3094 "%"PRId64" not supported by this datapath", br->name,
3095 br->cfg->key_flow_tables[j]);
3100 bridge_configure_dp_desc(struct bridge *br)
3102 ofproto_set_dp_desc(br->ofproto,
3103 smap_get(&br->cfg->other_config, "dp-desc"));
3106 /* Port functions. */
3108 static void iface_destroy__(struct iface *);
3110 static struct port *
3111 port_create(struct bridge *br, const struct ovsrec_port *cfg)
3115 port = xzalloc(sizeof *port);
3117 port->name = xstrdup(cfg->name);
3119 list_init(&port->ifaces);
3121 hmap_insert(&br->ports, &port->hmap_node, hash_string(port->name, 0));
3125 /* Deletes interfaces from 'port' that are no longer configured for it. */
3127 port_del_ifaces(struct port *port)
3129 struct iface *iface, *next;
3130 struct sset new_ifaces;
3133 /* Collect list of new interfaces. */
3134 sset_init(&new_ifaces);
3135 for (i = 0; i < port->cfg->n_interfaces; i++) {
3136 const char *name = port->cfg->interfaces[i]->name;
3137 const char *type = port->cfg->interfaces[i]->type;
3138 if (strcmp(type, "null")) {
3139 sset_add(&new_ifaces, name);
3143 /* Get rid of deleted interfaces. */
3144 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
3145 if (!sset_contains(&new_ifaces, iface->name)) {
3146 iface_destroy(iface);
3150 sset_destroy(&new_ifaces);
3154 port_destroy(struct port *port)
3157 struct bridge *br = port->bridge;
3158 struct iface *iface, *next;
3161 ofproto_bundle_unregister(br->ofproto, port);
3164 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
3165 iface_destroy__(iface);
3168 hmap_remove(&br->ports, &port->hmap_node);
3174 static struct port *
3175 port_lookup(const struct bridge *br, const char *name)
3179 HMAP_FOR_EACH_WITH_HASH (port, hmap_node, hash_string(name, 0),
3181 if (!strcmp(port->name, name)) {
3189 enable_lacp(struct port *port, bool *activep)
3191 if (!port->cfg->lacp) {
3192 /* XXX when LACP implementation has been sufficiently tested, enable by
3193 * default and make active on bonded ports. */
3195 } else if (!strcmp(port->cfg->lacp, "off")) {
3197 } else if (!strcmp(port->cfg->lacp, "active")) {
3200 } else if (!strcmp(port->cfg->lacp, "passive")) {
3204 VLOG_WARN("port %s: unknown LACP mode %s",
3205 port->name, port->cfg->lacp);
3210 static struct lacp_settings *
3211 port_configure_lacp(struct port *port, struct lacp_settings *s)
3213 const char *lacp_time, *system_id;
3216 if (!enable_lacp(port, &s->active)) {
3220 s->name = port->name;
3222 system_id = smap_get(&port->cfg->other_config, "lacp-system-id");
3224 if (!ovs_scan(system_id, ETH_ADDR_SCAN_FMT,
3225 ETH_ADDR_SCAN_ARGS(s->id))) {
3226 VLOG_WARN("port %s: LACP system ID (%s) must be an Ethernet"
3227 " address.", port->name, system_id);
3231 memcpy(s->id, port->bridge->ea, ETH_ADDR_LEN);
3234 if (eth_addr_is_zero(s->id)) {
3235 VLOG_WARN("port %s: Invalid zero LACP system ID.", port->name);
3239 /* Prefer bondable links if unspecified. */
3240 priority = smap_get_int(&port->cfg->other_config, "lacp-system-priority",
3242 s->priority = (priority > 0 && priority <= UINT16_MAX
3244 : UINT16_MAX - !list_is_short(&port->ifaces));
3246 lacp_time = smap_get(&port->cfg->other_config, "lacp-time");
3247 s->fast = lacp_time && !strcasecmp(lacp_time, "fast");
3249 s->fallback_ab_cfg = smap_get_bool(&port->cfg->other_config,
3250 "lacp-fallback-ab", false);
3256 iface_configure_lacp(struct iface *iface, struct lacp_slave_settings *s)
3258 int priority, portid, key;
3260 portid = smap_get_int(&iface->cfg->other_config, "lacp-port-id", 0);
3261 priority = smap_get_int(&iface->cfg->other_config, "lacp-port-priority",
3263 key = smap_get_int(&iface->cfg->other_config, "lacp-aggregation-key", 0);
3265 if (portid <= 0 || portid > UINT16_MAX) {
3266 portid = ofp_to_u16(iface->ofp_port);
3269 if (priority <= 0 || priority > UINT16_MAX) {
3270 priority = UINT16_MAX;
3273 if (key < 0 || key > UINT16_MAX) {
3277 s->name = iface->name;
3279 s->priority = priority;
3284 port_configure_bond(struct port *port, struct bond_settings *s)
3286 const char *detect_s;
3287 struct iface *iface;
3288 int miimon_interval;
3290 s->name = port->name;
3292 if (port->cfg->bond_mode) {
3293 if (!bond_mode_from_string(&s->balance, port->cfg->bond_mode)) {
3294 VLOG_WARN("port %s: unknown bond_mode %s, defaulting to %s",
3295 port->name, port->cfg->bond_mode,
3296 bond_mode_to_string(s->balance));
3299 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
3301 /* XXX: Post version 1.5.*, the default bond_mode changed from SLB to
3302 * active-backup. At some point we should remove this warning. */
3303 VLOG_WARN_RL(&rl, "port %s: Using the default bond_mode %s. Note that"
3304 " in previous versions, the default bond_mode was"
3305 " balance-slb", port->name,
3306 bond_mode_to_string(s->balance));
3308 if (s->balance == BM_SLB && port->bridge->cfg->n_flood_vlans) {
3309 VLOG_WARN("port %s: SLB bonds are incompatible with flood_vlans, "
3310 "please use another bond type or disable flood_vlans",
3314 miimon_interval = smap_get_int(&port->cfg->other_config,
3315 "bond-miimon-interval", 0);
3316 if (miimon_interval <= 0) {
3317 miimon_interval = 200;
3320 detect_s = smap_get(&port->cfg->other_config, "bond-detect-mode");
3321 if (!detect_s || !strcmp(detect_s, "carrier")) {
3322 miimon_interval = 0;
3323 } else if (strcmp(detect_s, "miimon")) {
3324 VLOG_WARN("port %s: unsupported bond-detect-mode %s, "
3325 "defaulting to carrier", port->name, detect_s);
3326 miimon_interval = 0;
3329 s->up_delay = MAX(0, port->cfg->bond_updelay);
3330 s->down_delay = MAX(0, port->cfg->bond_downdelay);
3331 s->basis = smap_get_int(&port->cfg->other_config, "bond-hash-basis", 0);
3332 s->rebalance_interval = smap_get_int(&port->cfg->other_config,
3333 "bond-rebalance-interval", 10000);
3334 if (s->rebalance_interval && s->rebalance_interval < 1000) {
3335 s->rebalance_interval = 1000;
3338 s->fake_iface = port->cfg->bond_fake_iface;
3340 s->lacp_fallback_ab_cfg = smap_get_bool(&port->cfg->other_config,
3341 "lacp-fallback-ab", false);
3343 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
3344 netdev_set_miimon_interval(iface->netdev, miimon_interval);
3348 /* Returns true if 'port' is synthetic, that is, if we constructed it locally
3349 * instead of obtaining it from the database. */
3351 port_is_synthetic(const struct port *port)
3353 return ovsdb_idl_row_is_synthetic(&port->cfg->header_);
3356 /* Interface functions. */
3359 iface_is_internal(const struct ovsrec_interface *iface,
3360 const struct ovsrec_bridge *br)
3362 /* The local port and "internal" ports are always "internal". */
3363 return !strcmp(iface->type, "internal") || !strcmp(iface->name, br->name);
3366 /* Returns the correct network device type for interface 'iface' in bridge
3369 iface_get_type(const struct ovsrec_interface *iface,
3370 const struct ovsrec_bridge *br)
3374 /* The local port always has type "internal". Other ports take
3375 * their type from the database and default to "system" if none is
3377 if (iface_is_internal(iface, br)) {
3380 type = iface->type[0] ? iface->type : "system";
3383 return ofproto_port_open_type(br->datapath_type, type);
3387 iface_destroy__(struct iface *iface)
3390 struct port *port = iface->port;
3391 struct bridge *br = port->bridge;
3393 if (br->ofproto && iface->ofp_port != OFPP_NONE) {
3394 ofproto_port_unregister(br->ofproto, iface->ofp_port);
3397 if (iface->ofp_port != OFPP_NONE) {
3398 hmap_remove(&br->ifaces, &iface->ofp_port_node);
3401 list_remove(&iface->port_elem);
3402 hmap_remove(&br->iface_by_name, &iface->name_node);
3404 netdev_close(iface->netdev);
3412 iface_destroy(struct iface *iface)
3415 struct port *port = iface->port;
3417 iface_destroy__(iface);
3418 if (list_is_empty(&port->ifaces)) {
3424 static struct iface *
3425 iface_lookup(const struct bridge *br, const char *name)
3427 struct iface *iface;
3429 HMAP_FOR_EACH_WITH_HASH (iface, name_node, hash_string(name, 0),
3430 &br->iface_by_name) {
3431 if (!strcmp(iface->name, name)) {
3439 static struct iface *
3440 iface_find(const char *name)
3442 const struct bridge *br;
3444 HMAP_FOR_EACH (br, node, &all_bridges) {
3445 struct iface *iface = iface_lookup(br, name);
3454 static struct iface *
3455 iface_from_ofp_port(const struct bridge *br, ofp_port_t ofp_port)
3457 struct iface *iface;
3459 HMAP_FOR_EACH_IN_BUCKET (iface, ofp_port_node, hash_ofp_port(ofp_port),
3461 if (iface->ofp_port == ofp_port) {
3468 /* Set Ethernet address of 'iface', if one is specified in the configuration
3471 iface_set_mac(struct iface *iface, const uint8_t *mac)
3473 uint8_t ea[ETH_ADDR_LEN];
3475 if (strcmp(iface->type, "internal")) {
3479 if (iface->cfg->mac && eth_addr_from_string(iface->cfg->mac, ea)) {
3484 if (iface->ofp_port == OFPP_LOCAL) {
3485 VLOG_ERR("interface %s: ignoring mac in Interface record "
3486 "(use Bridge record to set local port's mac)",
3488 } else if (eth_addr_is_multicast(mac)) {
3489 VLOG_ERR("interface %s: cannot set MAC to multicast address",
3492 int error = netdev_set_etheraddr(iface->netdev, mac);
3494 VLOG_ERR("interface %s: setting MAC failed (%s)",
3495 iface->name, ovs_strerror(error));
3501 /* Sets the ofport column of 'if_cfg' to 'ofport'. */
3503 iface_set_ofport(const struct ovsrec_interface *if_cfg, ofp_port_t ofport)
3505 if (if_cfg && !ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
3506 int64_t port = ofport == OFPP_NONE ? -1 : ofp_to_u16(ofport);
3507 ovsrec_interface_set_ofport(if_cfg, &port, 1);
3511 /* Clears all of the fields in 'if_cfg' that indicate interface status, and
3512 * sets the "ofport" field to -1.
3514 * This is appropriate when 'if_cfg''s interface cannot be created or is
3515 * otherwise invalid. */
3517 iface_clear_db_record(const struct ovsrec_interface *if_cfg)
3519 if (!ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
3520 iface_set_ofport(if_cfg, OFPP_NONE);
3521 ovsrec_interface_set_status(if_cfg, NULL);
3522 ovsrec_interface_set_admin_state(if_cfg, NULL);
3523 ovsrec_interface_set_duplex(if_cfg, NULL);
3524 ovsrec_interface_set_link_speed(if_cfg, NULL, 0);
3525 ovsrec_interface_set_link_state(if_cfg, NULL);
3526 ovsrec_interface_set_mac_in_use(if_cfg, NULL);
3527 ovsrec_interface_set_mtu(if_cfg, NULL, 0);
3528 ovsrec_interface_set_cfm_fault(if_cfg, NULL, 0);
3529 ovsrec_interface_set_cfm_fault_status(if_cfg, NULL, 0);
3530 ovsrec_interface_set_cfm_remote_mpids(if_cfg, NULL, 0);
3531 ovsrec_interface_set_lacp_current(if_cfg, NULL, 0);
3532 ovsrec_interface_set_statistics(if_cfg, NULL, NULL, 0);
3533 ovsrec_interface_set_ifindex(if_cfg, NULL, 0);
3538 queue_ids_include(const struct ovsdb_datum *queues, int64_t target)
3540 union ovsdb_atom atom;
3542 atom.integer = target;
3543 return ovsdb_datum_find_key(queues, &atom, OVSDB_TYPE_INTEGER) != UINT_MAX;
3547 iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos)
3549 struct ofpbuf queues_buf;
3551 ofpbuf_init(&queues_buf, 0);
3553 if (!qos || qos->type[0] == '\0' || qos->n_queues < 1) {
3554 netdev_set_qos(iface->netdev, NULL, NULL);
3556 const struct ovsdb_datum *queues;
3557 struct netdev_queue_dump dump;
3558 unsigned int queue_id;
3559 struct smap details;
3563 /* Configure top-level Qos for 'iface'. */
3564 netdev_set_qos(iface->netdev, qos->type, &qos->other_config);
3566 /* Deconfigure queues that were deleted. */
3567 queues = ovsrec_qos_get_queues(qos, OVSDB_TYPE_INTEGER,
3569 smap_init(&details);
3570 NETDEV_QUEUE_FOR_EACH (&queue_id, &details, &dump, iface->netdev) {
3571 if (!queue_ids_include(queues, queue_id)) {
3572 netdev_delete_queue(iface->netdev, queue_id);
3575 smap_destroy(&details);
3577 /* Configure queues for 'iface'. */
3579 for (i = 0; i < qos->n_queues; i++) {
3580 const struct ovsrec_queue *queue = qos->value_queues[i];
3581 unsigned int queue_id = qos->key_queues[i];
3583 if (queue_id == 0) {
3587 if (queue->n_dscp == 1) {
3588 struct ofproto_port_queue *port_queue;
3590 port_queue = ofpbuf_put_uninit(&queues_buf,
3591 sizeof *port_queue);
3592 port_queue->queue = queue_id;
3593 port_queue->dscp = queue->dscp[0];
3596 netdev_set_queue(iface->netdev, queue_id, &queue->other_config);
3599 struct smap details;
3601 smap_init(&details);
3602 netdev_set_queue(iface->netdev, 0, &details);
3603 smap_destroy(&details);
3607 if (iface->ofp_port != OFPP_NONE) {
3608 const struct ofproto_port_queue *port_queues = queues_buf.data;
3609 size_t n_queues = queues_buf.size / sizeof *port_queues;
3611 ofproto_port_set_queues(iface->port->bridge->ofproto, iface->ofp_port,
3612 port_queues, n_queues);
3615 netdev_set_policing(iface->netdev,
3616 iface->cfg->ingress_policing_rate,
3617 iface->cfg->ingress_policing_burst);
3619 ofpbuf_uninit(&queues_buf);
3623 iface_configure_cfm(struct iface *iface)
3625 const struct ovsrec_interface *cfg = iface->cfg;
3626 const char *opstate_str;
3627 const char *cfm_ccm_vlan;
3628 struct cfm_settings s;
3629 struct smap netdev_args;
3631 if (!cfg->n_cfm_mpid) {
3632 ofproto_port_clear_cfm(iface->port->bridge->ofproto, iface->ofp_port);
3636 s.check_tnl_key = false;
3637 smap_init(&netdev_args);
3638 if (!netdev_get_config(iface->netdev, &netdev_args)) {
3639 const char *key = smap_get(&netdev_args, "key");
3640 const char *in_key = smap_get(&netdev_args, "in_key");
3642 s.check_tnl_key = (key && !strcmp(key, "flow"))
3643 || (in_key && !strcmp(in_key, "flow"));
3645 smap_destroy(&netdev_args);
3647 s.mpid = *cfg->cfm_mpid;
3648 s.interval = smap_get_int(&iface->cfg->other_config, "cfm_interval", 0);
3649 cfm_ccm_vlan = smap_get(&iface->cfg->other_config, "cfm_ccm_vlan");
3650 s.ccm_pcp = smap_get_int(&iface->cfg->other_config, "cfm_ccm_pcp", 0);
3652 if (s.interval <= 0) {
3656 if (!cfm_ccm_vlan) {
3658 } else if (!strcasecmp("random", cfm_ccm_vlan)) {
3659 s.ccm_vlan = CFM_RANDOM_VLAN;
3661 s.ccm_vlan = atoi(cfm_ccm_vlan);
3662 if (s.ccm_vlan == CFM_RANDOM_VLAN) {
3667 s.extended = smap_get_bool(&iface->cfg->other_config, "cfm_extended",
3669 s.demand = smap_get_bool(&iface->cfg->other_config, "cfm_demand", false);
3671 opstate_str = smap_get(&iface->cfg->other_config, "cfm_opstate");
3672 s.opup = !opstate_str || !strcasecmp("up", opstate_str);
3674 ofproto_port_set_cfm(iface->port->bridge->ofproto, iface->ofp_port, &s);
3677 /* Returns true if 'iface' is synthetic, that is, if we constructed it locally
3678 * instead of obtaining it from the database. */
3680 iface_is_synthetic(const struct iface *iface)
3682 return ovsdb_idl_row_is_synthetic(&iface->cfg->header_);
3686 iface_validate_ofport__(size_t n, int64_t *ofport)
3688 return (n && *ofport >= 1 && *ofport < ofp_to_u16(OFPP_MAX)
3689 ? u16_to_ofp(*ofport)
3694 iface_get_requested_ofp_port(const struct ovsrec_interface *cfg)
3696 return iface_validate_ofport__(cfg->n_ofport_request, cfg->ofport_request);
3700 iface_pick_ofport(const struct ovsrec_interface *cfg)
3702 ofp_port_t requested_ofport = iface_get_requested_ofp_port(cfg);
3703 return (requested_ofport != OFPP_NONE
3705 : iface_validate_ofport__(cfg->n_ofport, cfg->ofport));
3708 /* Port mirroring. */
3710 static struct mirror *
3711 mirror_find_by_uuid(struct bridge *br, const struct uuid *uuid)
3715 HMAP_FOR_EACH_IN_BUCKET (m, hmap_node, uuid_hash(uuid), &br->mirrors) {
3716 if (uuid_equals(uuid, &m->uuid)) {
3724 bridge_configure_mirrors(struct bridge *br)
3726 const struct ovsdb_datum *mc;
3727 unsigned long *flood_vlans;
3728 struct mirror *m, *next;
3731 /* Get rid of deleted mirrors. */
3732 mc = ovsrec_bridge_get_mirrors(br->cfg, OVSDB_TYPE_UUID);
3733 HMAP_FOR_EACH_SAFE (m, next, hmap_node, &br->mirrors) {
3734 union ovsdb_atom atom;
3736 atom.uuid = m->uuid;
3737 if (ovsdb_datum_find_key(mc, &atom, OVSDB_TYPE_UUID) == UINT_MAX) {
3742 /* Add new mirrors and reconfigure existing ones. */
3743 for (i = 0; i < br->cfg->n_mirrors; i++) {
3744 const struct ovsrec_mirror *cfg = br->cfg->mirrors[i];
3745 struct mirror *m = mirror_find_by_uuid(br, &cfg->header_.uuid);
3747 m = mirror_create(br, cfg);
3750 if (!mirror_configure(m)) {
3755 /* Update flooded vlans (for RSPAN). */
3756 flood_vlans = vlan_bitmap_from_array(br->cfg->flood_vlans,
3757 br->cfg->n_flood_vlans);
3758 ofproto_set_flood_vlans(br->ofproto, flood_vlans);
3759 bitmap_free(flood_vlans);
3762 static struct mirror *
3763 mirror_create(struct bridge *br, const struct ovsrec_mirror *cfg)
3767 m = xzalloc(sizeof *m);
3768 m->uuid = cfg->header_.uuid;
3769 hmap_insert(&br->mirrors, &m->hmap_node, uuid_hash(&m->uuid));
3771 m->name = xstrdup(cfg->name);
3777 mirror_destroy(struct mirror *m)
3780 struct bridge *br = m->bridge;
3783 ofproto_mirror_unregister(br->ofproto, m);
3786 hmap_remove(&br->mirrors, &m->hmap_node);
3793 mirror_collect_ports(struct mirror *m,
3794 struct ovsrec_port **in_ports, int n_in_ports,
3795 void ***out_portsp, size_t *n_out_portsp)
3797 void **out_ports = xmalloc(n_in_ports * sizeof *out_ports);
3798 size_t n_out_ports = 0;
3801 for (i = 0; i < n_in_ports; i++) {
3802 const char *name = in_ports[i]->name;
3803 struct port *port = port_lookup(m->bridge, name);
3805 out_ports[n_out_ports++] = port;
3807 VLOG_WARN("bridge %s: mirror %s cannot match on nonexistent "
3808 "port %s", m->bridge->name, m->name, name);
3811 *out_portsp = out_ports;
3812 *n_out_portsp = n_out_ports;
3816 mirror_configure(struct mirror *m)
3818 const struct ovsrec_mirror *cfg = m->cfg;
3819 struct ofproto_mirror_settings s;
3822 if (strcmp(cfg->name, m->name)) {
3824 m->name = xstrdup(cfg->name);
3828 /* Get output port or VLAN. */
3829 if (cfg->output_port) {
3830 s.out_bundle = port_lookup(m->bridge, cfg->output_port->name);
3831 if (!s.out_bundle) {
3832 VLOG_ERR("bridge %s: mirror %s outputs to port not on bridge",
3833 m->bridge->name, m->name);
3836 s.out_vlan = UINT16_MAX;
3838 if (cfg->output_vlan) {
3839 VLOG_ERR("bridge %s: mirror %s specifies both output port and "
3840 "output vlan; ignoring output vlan",
3841 m->bridge->name, m->name);
3843 } else if (cfg->output_vlan) {
3844 /* The database should prevent invalid VLAN values. */
3845 s.out_bundle = NULL;
3846 s.out_vlan = *cfg->output_vlan;
3848 VLOG_ERR("bridge %s: mirror %s does not specify output; ignoring",
3849 m->bridge->name, m->name);
3853 /* Get port selection. */
3854 if (cfg->select_all) {
3855 size_t n_ports = hmap_count(&m->bridge->ports);
3856 void **ports = xmalloc(n_ports * sizeof *ports);
3861 HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) {
3871 /* Get ports, dropping ports that don't exist.
3872 * The IDL ensures that there are no duplicates. */
3873 mirror_collect_ports(m, cfg->select_src_port, cfg->n_select_src_port,
3874 &s.srcs, &s.n_srcs);
3875 mirror_collect_ports(m, cfg->select_dst_port, cfg->n_select_dst_port,
3876 &s.dsts, &s.n_dsts);
3879 /* Get VLAN selection. */
3880 s.src_vlans = vlan_bitmap_from_array(cfg->select_vlan, cfg->n_select_vlan);
3883 ofproto_mirror_register(m->bridge->ofproto, m, &s);
3886 if (s.srcs != s.dsts) {
3895 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
3897 * This is deprecated. It is only for compatibility with broken device drivers
3898 * in old versions of Linux that do not properly support VLANs when VLAN
3899 * devices are not used. When broken device drivers are no longer in
3900 * widespread use, we will delete these interfaces. */
3902 static struct ovsrec_port **recs;
3903 static size_t n_recs, allocated_recs;
3905 /* Adds 'rec' to a list of recs that have to be destroyed when the VLAN
3906 * splinters are reconfigured. */
3908 register_rec(struct ovsrec_port *rec)
3910 if (n_recs >= allocated_recs) {
3911 recs = x2nrealloc(recs, &allocated_recs, sizeof *recs);
3913 recs[n_recs++] = rec;
3916 /* Frees all of the ports registered with register_reg(). */
3918 free_registered_recs(void)
3922 for (i = 0; i < n_recs; i++) {
3923 struct ovsrec_port *port = recs[i];
3926 for (j = 0; j < port->n_interfaces; j++) {
3927 struct ovsrec_interface *iface = port->interfaces[j];
3932 smap_destroy(&port->other_config);
3933 free(port->interfaces);
3941 /* Returns true if VLAN splinters are enabled on 'iface_cfg', false
3944 vlan_splinters_is_enabled(const struct ovsrec_interface *iface_cfg)
3946 return smap_get_bool(&iface_cfg->other_config, "enable-vlan-splinters",
3950 /* Figures out the set of VLANs that are in use for the purpose of VLAN
3953 * If VLAN splinters are enabled on at least one interface and any VLANs are in
3954 * use, returns a 4096-bit bitmap with a 1-bit for each in-use VLAN (bits 0 and
3955 * 4095 will not be set). The caller is responsible for freeing the bitmap,
3958 * If VLANs splinters are not enabled on any interface or if no VLANs are in
3959 * use, returns NULL.
3961 * Updates 'vlan_splinters_enabled_anywhere'. */
3962 static unsigned long int *
3963 collect_splinter_vlans(const struct ovsrec_open_vswitch *ovs_cfg)
3965 unsigned long int *splinter_vlans;
3966 struct sset splinter_ifaces;
3967 const char *real_dev_name;
3968 struct shash *real_devs;
3969 struct shash_node *node;
3973 /* Free space allocated for synthesized ports and interfaces, since we're
3974 * in the process of reconstructing all of them. */
3975 free_registered_recs();
3977 splinter_vlans = bitmap_allocate(4096);
3978 sset_init(&splinter_ifaces);
3979 vlan_splinters_enabled_anywhere = false;
3980 for (i = 0; i < ovs_cfg->n_bridges; i++) {
3981 struct ovsrec_bridge *br_cfg = ovs_cfg->bridges[i];
3984 for (j = 0; j < br_cfg->n_ports; j++) {
3985 struct ovsrec_port *port_cfg = br_cfg->ports[j];
3988 for (k = 0; k < port_cfg->n_interfaces; k++) {
3989 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[k];
3991 if (vlan_splinters_is_enabled(iface_cfg)) {
3992 vlan_splinters_enabled_anywhere = true;
3993 sset_add(&splinter_ifaces, iface_cfg->name);
3994 vlan_bitmap_from_array__(port_cfg->trunks,
4000 if (port_cfg->tag && *port_cfg->tag > 0 && *port_cfg->tag < 4095) {
4001 bitmap_set1(splinter_vlans, *port_cfg->tag);
4006 if (!vlan_splinters_enabled_anywhere) {
4007 free(splinter_vlans);
4008 sset_destroy(&splinter_ifaces);
4012 HMAP_FOR_EACH (br, node, &all_bridges) {
4014 ofproto_get_vlan_usage(br->ofproto, splinter_vlans);
4018 /* Don't allow VLANs 0 or 4095 to be splintered. VLAN 0 should appear on
4019 * the real device. VLAN 4095 is reserved and Linux doesn't allow a VLAN
4020 * device to be created for it. */
4021 bitmap_set0(splinter_vlans, 0);
4022 bitmap_set0(splinter_vlans, 4095);
4024 /* Delete all VLAN devices that we don't need. */
4026 real_devs = vlandev_get_real_devs();
4027 SHASH_FOR_EACH (node, real_devs) {
4028 const struct vlan_real_dev *real_dev = node->data;
4029 const struct vlan_dev *vlan_dev;
4030 bool real_dev_has_splinters;
4032 real_dev_has_splinters = sset_contains(&splinter_ifaces,
4034 HMAP_FOR_EACH (vlan_dev, hmap_node, &real_dev->vlan_devs) {
4035 if (!real_dev_has_splinters
4036 || !bitmap_is_set(splinter_vlans, vlan_dev->vid)) {
4037 struct netdev *netdev;
4039 if (!netdev_open(vlan_dev->name, "system", &netdev)) {
4040 if (!netdev_get_in4(netdev, NULL, NULL) ||
4041 !netdev_get_in6(netdev, NULL)) {
4042 /* It has an IP address configured, so we don't own
4043 * it. Don't delete it. */
4045 vlandev_del(vlan_dev->name);
4047 netdev_close(netdev);
4054 /* Add all VLAN devices that we need. */
4055 SSET_FOR_EACH (real_dev_name, &splinter_ifaces) {
4058 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
4059 if (!vlandev_get_name(real_dev_name, vid)) {
4060 vlandev_add(real_dev_name, vid);
4067 sset_destroy(&splinter_ifaces);
4069 if (bitmap_scan(splinter_vlans, 0, 4096) >= 4096) {
4070 free(splinter_vlans);
4073 return splinter_vlans;
4076 /* Pushes the configure of VLAN splinter port 'port' (e.g. eth0.9) down to
4079 configure_splinter_port(struct port *port)
4081 struct ofproto *ofproto = port->bridge->ofproto;
4082 ofp_port_t realdev_ofp_port;
4083 const char *realdev_name;
4084 struct iface *vlandev, *realdev;
4086 ofproto_bundle_unregister(port->bridge->ofproto, port);
4088 vlandev = CONTAINER_OF(list_front(&port->ifaces), struct iface,
4091 realdev_name = smap_get(&port->cfg->other_config, "realdev");
4092 realdev = iface_lookup(port->bridge, realdev_name);
4093 realdev_ofp_port = realdev ? realdev->ofp_port : 0;
4095 ofproto_port_set_realdev(ofproto, vlandev->ofp_port, realdev_ofp_port,
4099 static struct ovsrec_port *
4100 synthesize_splinter_port(const char *real_dev_name,
4101 const char *vlan_dev_name, int vid)
4103 struct ovsrec_interface *iface;
4104 struct ovsrec_port *port;
4106 iface = xmalloc(sizeof *iface);
4107 ovsrec_interface_init(iface);
4108 iface->name = xstrdup(vlan_dev_name);
4109 iface->type = "system";
4111 port = xmalloc(sizeof *port);
4112 ovsrec_port_init(port);
4113 port->interfaces = xmemdup(&iface, sizeof iface);
4114 port->n_interfaces = 1;
4115 port->name = xstrdup(vlan_dev_name);
4116 port->vlan_mode = "splinter";
4117 port->tag = xmalloc(sizeof *port->tag);
4120 smap_add(&port->other_config, "realdev", real_dev_name);
4126 /* For each interface with 'br' that has VLAN splinters enabled, adds a
4127 * corresponding ovsrec_port to 'ports' for each splinter VLAN marked with a
4128 * 1-bit in the 'splinter_vlans' bitmap. */
4130 add_vlan_splinter_ports(struct bridge *br,
4131 const unsigned long int *splinter_vlans,
4132 struct shash *ports)
4136 /* We iterate through 'br->cfg->ports' instead of 'ports' here because
4137 * we're modifying 'ports'. */
4138 for (i = 0; i < br->cfg->n_ports; i++) {
4139 const char *name = br->cfg->ports[i]->name;
4140 struct ovsrec_port *port_cfg = shash_find_data(ports, name);
4143 for (j = 0; j < port_cfg->n_interfaces; j++) {
4144 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[j];
4146 if (vlan_splinters_is_enabled(iface_cfg)) {
4147 const char *real_dev_name;
4150 real_dev_name = iface_cfg->name;
4151 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
4152 const char *vlan_dev_name;
4154 vlan_dev_name = vlandev_get_name(real_dev_name, vid);
4156 && !shash_find(ports, vlan_dev_name)) {
4157 shash_add(ports, vlan_dev_name,
4158 synthesize_splinter_port(
4159 real_dev_name, vlan_dev_name, vid));
4168 mirror_refresh_stats(struct mirror *m)
4170 struct ofproto *ofproto = m->bridge->ofproto;
4171 uint64_t tx_packets, tx_bytes;
4174 size_t stat_cnt = 0;
4176 if (ofproto_mirror_get_stats(ofproto, m, &tx_packets, &tx_bytes)) {
4177 ovsrec_mirror_set_statistics(m->cfg, NULL, NULL, 0);
4181 if (tx_packets != UINT64_MAX) {
4182 keys[stat_cnt] = "tx_packets";
4183 values[stat_cnt] = tx_packets;
4186 if (tx_bytes != UINT64_MAX) {
4187 keys[stat_cnt] = "tx_bytes";
4188 values[stat_cnt] = tx_bytes;
4192 ovsrec_mirror_set_statistics(m->cfg, keys, values, stat_cnt);