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_flow_miss_model(const char *opt);
198 static void bridge_configure_datapath_id(struct bridge *);
199 static void bridge_configure_netflow(struct bridge *);
200 static void bridge_configure_forward_bpdu(struct bridge *);
201 static void bridge_configure_mac_table(struct bridge *);
202 static void bridge_configure_sflow(struct bridge *, int *sflow_bridge_number);
203 static void bridge_configure_ipfix(struct bridge *);
204 static void bridge_configure_stp(struct bridge *);
205 static void bridge_configure_tables(struct bridge *);
206 static void bridge_configure_dp_desc(struct bridge *);
207 static void bridge_configure_remotes(struct bridge *,
208 const struct sockaddr_in *managers,
210 static void bridge_pick_local_hw_addr(struct bridge *,
211 uint8_t ea[ETH_ADDR_LEN],
212 struct iface **hw_addr_iface);
213 static uint64_t bridge_pick_datapath_id(struct bridge *,
214 const uint8_t bridge_ea[ETH_ADDR_LEN],
215 struct iface *hw_addr_iface);
216 static uint64_t dpid_from_hash(const void *, size_t nbytes);
217 static bool bridge_has_bond_fake_iface(const struct bridge *,
219 static bool port_is_bond_fake_iface(const struct port *);
221 static unixctl_cb_func qos_unixctl_show;
223 static struct port *port_create(struct bridge *, const struct ovsrec_port *);
224 static void port_del_ifaces(struct port *);
225 static void port_destroy(struct port *);
226 static struct port *port_lookup(const struct bridge *, const char *name);
227 static void port_configure(struct port *);
228 static struct lacp_settings *port_configure_lacp(struct port *,
229 struct lacp_settings *);
230 static void port_configure_bond(struct port *, struct bond_settings *);
231 static bool port_is_synthetic(const struct port *);
233 static void reconfigure_system_stats(const struct ovsrec_open_vswitch *);
234 static void run_system_stats(void);
236 static void bridge_configure_mirrors(struct bridge *);
237 static struct mirror *mirror_create(struct bridge *,
238 const struct ovsrec_mirror *);
239 static void mirror_destroy(struct mirror *);
240 static bool mirror_configure(struct mirror *);
241 static void mirror_refresh_stats(struct mirror *);
243 static void iface_configure_lacp(struct iface *, struct lacp_slave_settings *);
244 static bool iface_create(struct bridge *, const struct ovsrec_interface *,
245 const struct ovsrec_port *);
246 static bool iface_is_internal(const struct ovsrec_interface *iface,
247 const struct ovsrec_bridge *br);
248 static const char *iface_get_type(const struct ovsrec_interface *,
249 const struct ovsrec_bridge *);
250 static void iface_destroy(struct iface *);
251 static struct iface *iface_lookup(const struct bridge *, const char *name);
252 static struct iface *iface_find(const char *name);
253 static struct iface *iface_from_ofp_port(const struct bridge *,
254 ofp_port_t ofp_port);
255 static void iface_set_mac(struct iface *, const uint8_t *);
256 static void iface_set_ofport(const struct ovsrec_interface *, ofp_port_t ofport);
257 static void iface_clear_db_record(const struct ovsrec_interface *if_cfg);
258 static void iface_configure_qos(struct iface *, const struct ovsrec_qos *);
259 static void iface_configure_cfm(struct iface *);
260 static void iface_refresh_cfm_stats(struct iface *);
261 static void iface_refresh_stats(struct iface *);
262 static void iface_refresh_status(struct iface *);
263 static bool iface_is_synthetic(const struct iface *);
264 static ofp_port_t iface_get_requested_ofp_port(
265 const struct ovsrec_interface *);
266 static ofp_port_t iface_pick_ofport(const struct ovsrec_interface *);
268 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
270 * This is deprecated. It is only for compatibility with broken device drivers
271 * in old versions of Linux that do not properly support VLANs when VLAN
272 * devices are not used. When broken device drivers are no longer in
273 * widespread use, we will delete these interfaces. */
275 /* True if VLAN splinters are enabled on any interface, false otherwise.*/
276 static bool vlan_splinters_enabled_anywhere;
278 static bool vlan_splinters_is_enabled(const struct ovsrec_interface *);
279 static unsigned long int *collect_splinter_vlans(
280 const struct ovsrec_open_vswitch *);
281 static void configure_splinter_port(struct port *);
282 static void add_vlan_splinter_ports(struct bridge *,
283 const unsigned long int *splinter_vlans,
284 struct shash *ports);
287 bridge_init_ofproto(const struct ovsrec_open_vswitch *cfg)
289 struct shash iface_hints;
290 static bool initialized = false;
297 shash_init(&iface_hints);
300 for (i = 0; i < cfg->n_bridges; i++) {
301 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
304 for (j = 0; j < br_cfg->n_ports; j++) {
305 struct ovsrec_port *port_cfg = br_cfg->ports[j];
308 for (k = 0; k < port_cfg->n_interfaces; k++) {
309 struct ovsrec_interface *if_cfg = port_cfg->interfaces[k];
310 struct iface_hint *iface_hint;
312 iface_hint = xmalloc(sizeof *iface_hint);
313 iface_hint->br_name = br_cfg->name;
314 iface_hint->br_type = br_cfg->datapath_type;
315 iface_hint->ofp_port = iface_pick_ofport(if_cfg);
317 shash_add(&iface_hints, if_cfg->name, iface_hint);
323 ofproto_init(&iface_hints);
325 shash_destroy_free_data(&iface_hints);
329 /* Public functions. */
331 /* Initializes the bridge module, configuring it to obtain its configuration
332 * from an OVSDB server accessed over 'remote', which should be a string in a
333 * form acceptable to ovsdb_idl_create(). */
335 bridge_init(const char *remote)
337 /* Create connection to database. */
338 idl = ovsdb_idl_create(remote, &ovsrec_idl_class, true, true);
339 idl_seqno = ovsdb_idl_get_seqno(idl);
340 ovsdb_idl_set_lock(idl, "ovs_vswitchd");
341 ovsdb_idl_verify_write_only(idl);
343 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_cur_cfg);
344 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_statistics);
345 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_external_ids);
346 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_ovs_version);
347 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_db_version);
348 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_type);
349 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_version);
351 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_datapath_id);
352 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_status);
353 ovsdb_idl_omit(idl, &ovsrec_bridge_col_external_ids);
355 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_status);
356 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_statistics);
357 ovsdb_idl_omit(idl, &ovsrec_port_col_external_ids);
359 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_admin_state);
360 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_duplex);
361 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_speed);
362 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_state);
363 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_resets);
364 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mac_in_use);
365 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ifindex);
366 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mtu);
367 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ofport);
368 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_statistics);
369 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_status);
370 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault);
371 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault_status);
372 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_remote_mpids);
373 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_flap_count);
374 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_health);
375 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_remote_opstate);
376 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_bfd_status);
377 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_lacp_current);
378 ovsdb_idl_omit(idl, &ovsrec_interface_col_external_ids);
380 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_is_connected);
381 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_role);
382 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_status);
383 ovsdb_idl_omit(idl, &ovsrec_controller_col_external_ids);
385 ovsdb_idl_omit(idl, &ovsrec_qos_col_external_ids);
387 ovsdb_idl_omit(idl, &ovsrec_queue_col_external_ids);
389 ovsdb_idl_omit(idl, &ovsrec_mirror_col_external_ids);
390 ovsdb_idl_omit_alert(idl, &ovsrec_mirror_col_statistics);
392 ovsdb_idl_omit(idl, &ovsrec_netflow_col_external_ids);
393 ovsdb_idl_omit(idl, &ovsrec_sflow_col_external_ids);
394 ovsdb_idl_omit(idl, &ovsrec_ipfix_col_external_ids);
395 ovsdb_idl_omit(idl, &ovsrec_flow_sample_collector_set_col_external_ids);
397 ovsdb_idl_omit(idl, &ovsrec_manager_col_external_ids);
398 ovsdb_idl_omit(idl, &ovsrec_manager_col_inactivity_probe);
399 ovsdb_idl_omit(idl, &ovsrec_manager_col_is_connected);
400 ovsdb_idl_omit(idl, &ovsrec_manager_col_max_backoff);
401 ovsdb_idl_omit(idl, &ovsrec_manager_col_status);
403 ovsdb_idl_omit(idl, &ovsrec_ssl_col_external_ids);
405 /* Register unixctl commands. */
406 unixctl_command_register("qos/show", "interface", 1, 1,
407 qos_unixctl_show, NULL);
408 unixctl_command_register("bridge/dump-flows", "bridge", 1, 1,
409 bridge_unixctl_dump_flows, NULL);
410 unixctl_command_register("bridge/reconnect", "[bridge]", 0, 1,
411 bridge_unixctl_reconnect, NULL);
421 struct bridge *br, *next_br;
423 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
426 ovsdb_idl_destroy(idl);
429 /* Looks at the list of managers in 'ovs_cfg' and extracts their remote IP
430 * addresses and ports into '*managersp' and '*n_managersp'. The caller is
431 * responsible for freeing '*managersp' (with free()).
433 * You may be asking yourself "why does ovs-vswitchd care?", because
434 * ovsdb-server is responsible for connecting to the managers, and ovs-vswitchd
435 * should not be and in fact is not directly involved in that. But
436 * ovs-vswitchd needs to make sure that ovsdb-server can reach the managers, so
437 * it has to tell in-band control where the managers are to enable that.
438 * (Thus, only managers connected in-band are collected.)
441 collect_in_band_managers(const struct ovsrec_open_vswitch *ovs_cfg,
442 struct sockaddr_in **managersp, size_t *n_managersp)
444 struct sockaddr_in *managers = NULL;
445 size_t n_managers = 0;
449 /* Collect all of the potential targets from the "targets" columns of the
450 * rows pointed to by "manager_options", excluding any that are
453 for (i = 0; i < ovs_cfg->n_manager_options; i++) {
454 struct ovsrec_manager *m = ovs_cfg->manager_options[i];
456 if (m->connection_mode && !strcmp(m->connection_mode, "out-of-band")) {
457 sset_find_and_delete(&targets, m->target);
459 sset_add(&targets, m->target);
463 /* Now extract the targets' IP addresses. */
464 if (!sset_is_empty(&targets)) {
467 managers = xmalloc(sset_count(&targets) * sizeof *managers);
468 SSET_FOR_EACH (target, &targets) {
469 struct sockaddr_storage ss;
471 if (stream_parse_target_with_default_port(target, OVSDB_OLD_PORT,
473 && ss.ss_family == AF_INET) {
474 managers[n_managers++] = *(struct sockaddr_in *) &ss;
478 sset_destroy(&targets);
480 *managersp = managers;
481 *n_managersp = n_managers;
485 bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
487 unsigned long int *splinter_vlans;
488 struct sockaddr_in *managers;
489 struct bridge *br, *next;
490 int sflow_bridge_number;
493 COVERAGE_INC(bridge_reconfigure);
495 ofproto_set_flow_limit(smap_get_int(&ovs_cfg->other_config, "flow-limit",
496 OFPROTO_FLOW_LIMIT_DEFAULT));
499 smap_get_int(&ovs_cfg->other_config, "n-handler-threads", 0),
500 smap_get_int(&ovs_cfg->other_config, "n-revalidator-threads", 0));
502 bridge_configure_flow_miss_model(smap_get(&ovs_cfg->other_config,
503 "force-miss-model"));
505 /* Destroy "struct bridge"s, "struct port"s, and "struct iface"s according
506 * to 'ovs_cfg', with only very minimal configuration otherwise.
508 * This is mostly an update to bridge data structures. Nothing is pushed
509 * down to ofproto or lower layers. */
510 add_del_bridges(ovs_cfg);
511 splinter_vlans = collect_splinter_vlans(ovs_cfg);
512 HMAP_FOR_EACH (br, node, &all_bridges) {
513 bridge_collect_wanted_ports(br, splinter_vlans, &br->wanted_ports);
514 bridge_del_ports(br, &br->wanted_ports);
516 free(splinter_vlans);
518 /* Start pushing configuration changes down to the ofproto layer:
520 * - Delete ofprotos that are no longer configured.
522 * - Delete ports that are no longer configured.
524 * - Reconfigure existing ports to their desired configurations, or
525 * delete them if not possible.
527 * We have to do all the deletions before we can do any additions, because
528 * the ports to be added might require resources that will be freed up by
529 * deletions (they might especially overlap in name). */
530 bridge_delete_ofprotos();
531 HMAP_FOR_EACH (br, node, &all_bridges) {
533 bridge_delete_or_reconfigure_ports(br);
537 /* Finish pushing configuration changes to the ofproto layer:
539 * - Create ofprotos that are missing.
541 * - Add ports that are missing. */
542 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
546 error = ofproto_create(br->name, br->type, &br->ofproto);
548 VLOG_ERR("failed to create bridge %s: %s", br->name,
549 ovs_strerror(error));
550 shash_destroy(&br->wanted_ports);
555 HMAP_FOR_EACH (br, node, &all_bridges) {
556 bridge_add_ports(br, &br->wanted_ports);
557 shash_destroy(&br->wanted_ports);
560 reconfigure_system_stats(ovs_cfg);
562 /* Complete the configuration. */
563 sflow_bridge_number = 0;
564 collect_in_band_managers(ovs_cfg, &managers, &n_managers);
565 HMAP_FOR_EACH (br, node, &all_bridges) {
568 /* We need the datapath ID early to allow LACP ports to use it as the
569 * default system ID. */
570 bridge_configure_datapath_id(br);
572 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
575 port_configure(port);
577 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
578 iface_set_ofport(iface->cfg, iface->ofp_port);
579 iface_configure_cfm(iface);
580 iface_configure_qos(iface, port->cfg->qos);
581 iface_set_mac(iface, port->cfg->fake_bridge ? br->ea : NULL);
582 ofproto_port_set_bfd(br->ofproto, iface->ofp_port,
586 bridge_configure_mirrors(br);
587 bridge_configure_forward_bpdu(br);
588 bridge_configure_mac_table(br);
589 bridge_configure_remotes(br, managers, n_managers);
590 bridge_configure_netflow(br);
591 bridge_configure_sflow(br, &sflow_bridge_number);
592 bridge_configure_ipfix(br);
593 bridge_configure_stp(br);
594 bridge_configure_tables(br);
595 bridge_configure_dp_desc(br);
597 if (smap_get(&br->cfg->other_config, "flow-eviction-threshold")) {
598 /* XXX: Remove this warning message eventually. */
599 VLOG_WARN_ONCE("As of June 2013, flow-eviction-threshold has been"
600 " moved to the Open_vSwitch table. Ignoring its"
601 " setting in the bridge table.");
606 /* The ofproto-dpif provider does some final reconfiguration in its
607 * ->type_run() function. We have to call it before notifying the database
608 * client that reconfiguration is complete, otherwise there is a very
609 * narrow race window in which e.g. ofproto/trace will not recognize the
610 * new configuration (sometimes this causes unit test failures). */
614 /* Delete ofprotos which aren't configured or have the wrong type. Create
615 * ofprotos which don't exist but need to. */
617 bridge_delete_ofprotos(void)
624 /* Delete ofprotos with no bridge or with the wrong type. */
627 ofproto_enumerate_types(&types);
628 SSET_FOR_EACH (type, &types) {
631 ofproto_enumerate_names(type, &names);
632 SSET_FOR_EACH (name, &names) {
633 br = bridge_lookup(name);
634 if (!br || strcmp(type, br->type)) {
635 ofproto_delete(name, type);
639 sset_destroy(&names);
640 sset_destroy(&types);
644 add_ofp_port(ofp_port_t port, ofp_port_t *ports, size_t *n, size_t *allocated)
646 if (*n >= *allocated) {
647 ports = x2nrealloc(ports, allocated, sizeof *ports);
649 ports[(*n)++] = port;
654 bridge_delete_or_reconfigure_ports(struct bridge *br)
656 struct ofproto_port ofproto_port;
657 struct ofproto_port_dump dump;
659 /* List of "ofp_port"s to delete. We make a list instead of deleting them
660 * right away because ofproto implementations aren't necessarily able to
661 * iterate through a changing list of ports in an entirely robust way. */
669 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
670 ofp_port_t requested_ofp_port;
673 iface = iface_lookup(br, ofproto_port.name);
675 /* No such iface is configured, so we should delete this
678 * As a corner case exception, keep the port if it's a bond fake
680 if (bridge_has_bond_fake_iface(br, ofproto_port.name)
681 && !strcmp(ofproto_port.type, "internal")) {
687 if (strcmp(ofproto_port.type, iface->type)
688 || netdev_set_config(iface->netdev, &iface->cfg->options)) {
689 /* The interface is the wrong type or can't be configured.
694 /* If the requested OpenFlow port for 'iface' changed, and it's not
695 * already the correct port, then we might want to temporarily delete
696 * this interface, so we can add it back again with the new OpenFlow
698 requested_ofp_port = iface_get_requested_ofp_port(iface->cfg);
699 if (iface->ofp_port != OFPP_LOCAL &&
700 requested_ofp_port != OFPP_NONE &&
701 requested_ofp_port != iface->ofp_port) {
702 ofp_port_t victim_request;
703 struct iface *victim;
705 /* Check for an existing OpenFlow port currently occupying
706 * 'iface''s requested port number. If there isn't one, then
707 * delete this port. Otherwise we need to consider further. */
708 victim = iface_from_ofp_port(br, requested_ofp_port);
713 /* 'victim' is a port currently using 'iface''s requested port
714 * number. Unless 'victim' specifically requested that port
715 * number, too, then we can delete both 'iface' and 'victim'
716 * temporarily. (We'll add both of them back again later with new
717 * OpenFlow port numbers.)
719 * If 'victim' did request port number 'requested_ofp_port', just
720 * like 'iface', then that's a configuration inconsistency that we
721 * can't resolve. We might as well let it keep its current port
723 victim_request = iface_get_requested_ofp_port(victim->cfg);
724 if (victim_request != requested_ofp_port) {
725 del = add_ofp_port(victim->ofp_port, del, &n, &allocated);
726 iface_destroy(victim);
735 iface_destroy(iface);
736 del = add_ofp_port(ofproto_port.ofp_port, del, &n, &allocated);
739 for (i = 0; i < n; i++) {
740 ofproto_port_del(br->ofproto, del[i]);
746 bridge_add_ports__(struct bridge *br, const struct shash *wanted_ports,
747 bool with_requested_port)
749 struct shash_node *port_node;
751 SHASH_FOR_EACH (port_node, wanted_ports) {
752 const struct ovsrec_port *port_cfg = port_node->data;
755 for (i = 0; i < port_cfg->n_interfaces; i++) {
756 const struct ovsrec_interface *iface_cfg = port_cfg->interfaces[i];
757 ofp_port_t requested_ofp_port;
759 requested_ofp_port = iface_get_requested_ofp_port(iface_cfg);
760 if ((requested_ofp_port != OFPP_NONE) == with_requested_port) {
761 struct iface *iface = iface_lookup(br, iface_cfg->name);
764 iface_create(br, iface_cfg, port_cfg);
772 bridge_add_ports(struct bridge *br, const struct shash *wanted_ports)
774 /* First add interfaces that request a particular port number. */
775 bridge_add_ports__(br, wanted_ports, true);
777 /* Then add interfaces that want automatic port number assignment.
778 * We add these afterward to avoid accidentally taking a specifically
779 * requested port number. */
780 bridge_add_ports__(br, wanted_ports, false);
784 port_configure(struct port *port)
786 const struct ovsrec_port *cfg = port->cfg;
787 struct bond_settings bond_settings;
788 struct lacp_settings lacp_settings;
789 struct ofproto_bundle_settings s;
792 if (cfg->vlan_mode && !strcmp(cfg->vlan_mode, "splinter")) {
793 configure_splinter_port(port);
802 s.slaves = xmalloc(list_size(&port->ifaces) * sizeof *s.slaves);
803 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
804 s.slaves[s.n_slaves++] = iface->ofp_port;
809 if (cfg->tag && *cfg->tag >= 0 && *cfg->tag <= 4095) {
813 /* Get VLAN trunks. */
816 s.trunks = vlan_bitmap_from_array(cfg->trunks, cfg->n_trunks);
820 if (cfg->vlan_mode) {
821 if (!strcmp(cfg->vlan_mode, "access")) {
822 s.vlan_mode = PORT_VLAN_ACCESS;
823 } else if (!strcmp(cfg->vlan_mode, "trunk")) {
824 s.vlan_mode = PORT_VLAN_TRUNK;
825 } else if (!strcmp(cfg->vlan_mode, "native-tagged")) {
826 s.vlan_mode = PORT_VLAN_NATIVE_TAGGED;
827 } else if (!strcmp(cfg->vlan_mode, "native-untagged")) {
828 s.vlan_mode = PORT_VLAN_NATIVE_UNTAGGED;
830 /* This "can't happen" because ovsdb-server should prevent it. */
831 VLOG_ERR("unknown VLAN mode %s", cfg->vlan_mode);
832 s.vlan_mode = PORT_VLAN_TRUNK;
836 s.vlan_mode = PORT_VLAN_ACCESS;
838 VLOG_ERR("port %s: ignoring trunks in favor of implicit vlan",
842 s.vlan_mode = PORT_VLAN_TRUNK;
845 s.use_priority_tags = smap_get_bool(&cfg->other_config, "priority-tags",
848 /* Get LACP settings. */
849 s.lacp = port_configure_lacp(port, &lacp_settings);
853 s.lacp_slaves = xmalloc(s.n_slaves * sizeof *s.lacp_slaves);
854 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
855 iface_configure_lacp(iface, &s.lacp_slaves[i++]);
858 s.lacp_slaves = NULL;
861 /* Get bond settings. */
862 if (s.n_slaves > 1) {
863 s.bond = &bond_settings;
864 port_configure_bond(port, &bond_settings);
867 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
868 netdev_set_miimon_interval(iface->netdev, 0);
873 ofproto_bundle_register(port->bridge->ofproto, port, &s);
882 bridge_configure_flow_miss_model(const char *opt)
884 enum ofproto_flow_miss_model model = OFPROTO_HANDLE_MISS_AUTO;
887 if (!strcmp(opt, "with-facets")) {
888 model = OFPROTO_HANDLE_MISS_WITH_FACETS;
889 } else if (!strcmp(opt, "without-facets")) {
890 model = OFPROTO_HANDLE_MISS_WITHOUT_FACETS;
894 ofproto_set_flow_miss_model(model);
897 /* Pick local port hardware address and datapath ID for 'br'. */
899 bridge_configure_datapath_id(struct bridge *br)
901 uint8_t ea[ETH_ADDR_LEN];
903 struct iface *local_iface;
904 struct iface *hw_addr_iface;
907 bridge_pick_local_hw_addr(br, ea, &hw_addr_iface);
908 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
910 int error = netdev_set_etheraddr(local_iface->netdev, ea);
912 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
913 VLOG_ERR_RL(&rl, "bridge %s: failed to set bridge "
914 "Ethernet address: %s",
915 br->name, ovs_strerror(error));
918 memcpy(br->ea, ea, ETH_ADDR_LEN);
920 dpid = bridge_pick_datapath_id(br, ea, hw_addr_iface);
921 if (dpid != ofproto_get_datapath_id(br->ofproto)) {
922 VLOG_INFO("bridge %s: using datapath ID %016"PRIx64, br->name, dpid);
923 ofproto_set_datapath_id(br->ofproto, dpid);
926 dpid_string = xasprintf("%016"PRIx64, dpid);
927 ovsrec_bridge_set_datapath_id(br->cfg, dpid_string);
931 /* Returns a bitmap of "enum ofputil_protocol"s that are allowed for use with
934 bridge_get_allowed_versions(struct bridge *br)
936 if (!br->cfg->n_protocols)
939 return ofputil_versions_from_strings(br->cfg->protocols,
940 br->cfg->n_protocols);
943 /* Set NetFlow configuration on 'br'. */
945 bridge_configure_netflow(struct bridge *br)
947 struct ovsrec_netflow *cfg = br->cfg->netflow;
948 struct netflow_options opts;
951 ofproto_set_netflow(br->ofproto, NULL);
955 memset(&opts, 0, sizeof opts);
957 /* Get default NetFlow configuration from datapath.
958 * Apply overrides from 'cfg'. */
959 ofproto_get_netflow_ids(br->ofproto, &opts.engine_type, &opts.engine_id);
960 if (cfg->engine_type) {
961 opts.engine_type = *cfg->engine_type;
963 if (cfg->engine_id) {
964 opts.engine_id = *cfg->engine_id;
967 /* Configure active timeout interval. */
968 opts.active_timeout = cfg->active_timeout;
969 if (!opts.active_timeout) {
970 opts.active_timeout = -1;
971 } else if (opts.active_timeout < 0) {
972 VLOG_WARN("bridge %s: active timeout interval set to negative "
973 "value, using default instead (%d seconds)", br->name,
974 NF_ACTIVE_TIMEOUT_DEFAULT);
975 opts.active_timeout = -1;
978 /* Add engine ID to interface number to disambiguate bridgs? */
979 opts.add_id_to_iface = cfg->add_id_to_interface;
980 if (opts.add_id_to_iface) {
981 if (opts.engine_id > 0x7f) {
982 VLOG_WARN("bridge %s: NetFlow port mangling may conflict with "
983 "another vswitch, choose an engine id less than 128",
986 if (hmap_count(&br->ports) > 508) {
987 VLOG_WARN("bridge %s: NetFlow port mangling will conflict with "
988 "another port when more than 508 ports are used",
994 sset_init(&opts.collectors);
995 sset_add_array(&opts.collectors, cfg->targets, cfg->n_targets);
998 if (ofproto_set_netflow(br->ofproto, &opts)) {
999 VLOG_ERR("bridge %s: problem setting netflow collectors", br->name);
1001 sset_destroy(&opts.collectors);
1004 /* Set sFlow configuration on 'br'. */
1006 bridge_configure_sflow(struct bridge *br, int *sflow_bridge_number)
1008 const struct ovsrec_sflow *cfg = br->cfg->sflow;
1009 struct ovsrec_controller **controllers;
1010 struct ofproto_sflow_options oso;
1011 size_t n_controllers;
1015 ofproto_set_sflow(br->ofproto, NULL);
1019 memset(&oso, 0, sizeof oso);
1021 sset_init(&oso.targets);
1022 sset_add_array(&oso.targets, cfg->targets, cfg->n_targets);
1024 oso.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
1025 if (cfg->sampling) {
1026 oso.sampling_rate = *cfg->sampling;
1029 oso.polling_interval = SFL_DEFAULT_POLLING_INTERVAL;
1031 oso.polling_interval = *cfg->polling;
1034 oso.header_len = SFL_DEFAULT_HEADER_SIZE;
1036 oso.header_len = *cfg->header;
1039 oso.sub_id = (*sflow_bridge_number)++;
1040 oso.agent_device = cfg->agent;
1042 oso.control_ip = NULL;
1043 n_controllers = bridge_get_controllers(br, &controllers);
1044 for (i = 0; i < n_controllers; i++) {
1045 if (controllers[i]->local_ip) {
1046 oso.control_ip = controllers[i]->local_ip;
1050 ofproto_set_sflow(br->ofproto, &oso);
1052 sset_destroy(&oso.targets);
1055 /* Returns whether a IPFIX row is valid. */
1057 ovsrec_ipfix_is_valid(const struct ovsrec_ipfix *ipfix)
1059 return ipfix && ipfix->n_targets > 0;
1062 /* Returns whether a Flow_Sample_Collector_Set row is valid. */
1064 ovsrec_fscs_is_valid(const struct ovsrec_flow_sample_collector_set *fscs,
1065 const struct bridge *br)
1067 return ovsrec_ipfix_is_valid(fscs->ipfix) && fscs->bridge == br->cfg;
1070 /* Set IPFIX configuration on 'br'. */
1072 bridge_configure_ipfix(struct bridge *br)
1074 const struct ovsrec_ipfix *be_cfg = br->cfg->ipfix;
1075 bool valid_be_cfg = ovsrec_ipfix_is_valid(be_cfg);
1076 const struct ovsrec_flow_sample_collector_set *fe_cfg;
1077 struct ofproto_ipfix_bridge_exporter_options be_opts;
1078 struct ofproto_ipfix_flow_exporter_options *fe_opts = NULL;
1079 size_t n_fe_opts = 0;
1081 OVSREC_FLOW_SAMPLE_COLLECTOR_SET_FOR_EACH(fe_cfg, idl) {
1082 if (ovsrec_fscs_is_valid(fe_cfg, br)) {
1087 if (!valid_be_cfg && n_fe_opts == 0) {
1088 ofproto_set_ipfix(br->ofproto, NULL, NULL, 0);
1093 memset(&be_opts, 0, sizeof be_opts);
1095 sset_init(&be_opts.targets);
1096 sset_add_array(&be_opts.targets, be_cfg->targets, be_cfg->n_targets);
1098 if (be_cfg->sampling) {
1099 be_opts.sampling_rate = *be_cfg->sampling;
1101 be_opts.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
1103 if (be_cfg->obs_domain_id) {
1104 be_opts.obs_domain_id = *be_cfg->obs_domain_id;
1106 if (be_cfg->obs_point_id) {
1107 be_opts.obs_point_id = *be_cfg->obs_point_id;
1109 if (be_cfg->cache_active_timeout) {
1110 be_opts.cache_active_timeout = *be_cfg->cache_active_timeout;
1112 if (be_cfg->cache_max_flows) {
1113 be_opts.cache_max_flows = *be_cfg->cache_max_flows;
1117 if (n_fe_opts > 0) {
1118 struct ofproto_ipfix_flow_exporter_options *opts;
1119 fe_opts = xcalloc(n_fe_opts, sizeof *fe_opts);
1121 OVSREC_FLOW_SAMPLE_COLLECTOR_SET_FOR_EACH(fe_cfg, idl) {
1122 if (ovsrec_fscs_is_valid(fe_cfg, br)) {
1123 opts->collector_set_id = fe_cfg->id;
1124 sset_init(&opts->targets);
1125 sset_add_array(&opts->targets, fe_cfg->ipfix->targets,
1126 fe_cfg->ipfix->n_targets);
1127 opts->cache_active_timeout = fe_cfg->ipfix->cache_active_timeout
1128 ? *fe_cfg->ipfix->cache_active_timeout : 0;
1129 opts->cache_max_flows = fe_cfg->ipfix->cache_max_flows
1130 ? *fe_cfg->ipfix->cache_max_flows : 0;
1136 ofproto_set_ipfix(br->ofproto, valid_be_cfg ? &be_opts : NULL, fe_opts,
1140 sset_destroy(&be_opts.targets);
1143 if (n_fe_opts > 0) {
1144 struct ofproto_ipfix_flow_exporter_options *opts = fe_opts;
1146 for (i = 0; i < n_fe_opts; i++) {
1147 sset_destroy(&opts->targets);
1155 port_configure_stp(const struct ofproto *ofproto, struct port *port,
1156 struct ofproto_port_stp_settings *port_s,
1157 int *port_num_counter, unsigned long *port_num_bitmap)
1159 const char *config_str;
1160 struct iface *iface;
1162 if (!smap_get_bool(&port->cfg->other_config, "stp-enable", true)) {
1163 port_s->enable = false;
1166 port_s->enable = true;
1169 /* STP over bonds is not supported. */
1170 if (!list_is_singleton(&port->ifaces)) {
1171 VLOG_ERR("port %s: cannot enable STP on bonds, disabling",
1173 port_s->enable = false;
1177 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
1179 /* Internal ports shouldn't participate in spanning tree, so
1181 if (!strcmp(iface->type, "internal")) {
1182 VLOG_DBG("port %s: disable STP on internal ports", port->name);
1183 port_s->enable = false;
1187 /* STP on mirror output ports is not supported. */
1188 if (ofproto_is_mirror_output_bundle(ofproto, port)) {
1189 VLOG_DBG("port %s: disable STP on mirror ports", port->name);
1190 port_s->enable = false;
1194 config_str = smap_get(&port->cfg->other_config, "stp-port-num");
1196 unsigned long int port_num = strtoul(config_str, NULL, 0);
1197 int port_idx = port_num - 1;
1199 if (port_num < 1 || port_num > STP_MAX_PORTS) {
1200 VLOG_ERR("port %s: invalid stp-port-num", port->name);
1201 port_s->enable = false;
1205 if (bitmap_is_set(port_num_bitmap, port_idx)) {
1206 VLOG_ERR("port %s: duplicate stp-port-num %lu, disabling",
1207 port->name, port_num);
1208 port_s->enable = false;
1211 bitmap_set1(port_num_bitmap, port_idx);
1212 port_s->port_num = port_idx;
1214 if (*port_num_counter >= STP_MAX_PORTS) {
1215 VLOG_ERR("port %s: too many STP ports, disabling", port->name);
1216 port_s->enable = false;
1220 port_s->port_num = (*port_num_counter)++;
1223 config_str = smap_get(&port->cfg->other_config, "stp-path-cost");
1225 port_s->path_cost = strtoul(config_str, NULL, 10);
1227 enum netdev_features current;
1230 netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
1231 mbps = netdev_features_to_bps(current, 100 * 1000 * 1000) / 1000000;
1232 port_s->path_cost = stp_convert_speed_to_cost(mbps);
1235 config_str = smap_get(&port->cfg->other_config, "stp-port-priority");
1237 port_s->priority = strtoul(config_str, NULL, 0);
1239 port_s->priority = STP_DEFAULT_PORT_PRIORITY;
1243 /* Set spanning tree configuration on 'br'. */
1245 bridge_configure_stp(struct bridge *br)
1247 if (!br->cfg->stp_enable) {
1248 ofproto_set_stp(br->ofproto, NULL);
1250 struct ofproto_stp_settings br_s;
1251 const char *config_str;
1253 int port_num_counter;
1254 unsigned long *port_num_bitmap;
1256 config_str = smap_get(&br->cfg->other_config, "stp-system-id");
1258 uint8_t ea[ETH_ADDR_LEN];
1260 if (eth_addr_from_string(config_str, ea)) {
1261 br_s.system_id = eth_addr_to_uint64(ea);
1263 br_s.system_id = eth_addr_to_uint64(br->ea);
1264 VLOG_ERR("bridge %s: invalid stp-system-id, defaulting "
1265 "to "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(br->ea));
1268 br_s.system_id = eth_addr_to_uint64(br->ea);
1271 config_str = smap_get(&br->cfg->other_config, "stp-priority");
1273 br_s.priority = strtoul(config_str, NULL, 0);
1275 br_s.priority = STP_DEFAULT_BRIDGE_PRIORITY;
1278 config_str = smap_get(&br->cfg->other_config, "stp-hello-time");
1280 br_s.hello_time = strtoul(config_str, NULL, 10) * 1000;
1282 br_s.hello_time = STP_DEFAULT_HELLO_TIME;
1285 config_str = smap_get(&br->cfg->other_config, "stp-max-age");
1287 br_s.max_age = strtoul(config_str, NULL, 10) * 1000;
1289 br_s.max_age = STP_DEFAULT_MAX_AGE;
1292 config_str = smap_get(&br->cfg->other_config, "stp-forward-delay");
1294 br_s.fwd_delay = strtoul(config_str, NULL, 10) * 1000;
1296 br_s.fwd_delay = STP_DEFAULT_FWD_DELAY;
1299 /* Configure STP on the bridge. */
1300 if (ofproto_set_stp(br->ofproto, &br_s)) {
1301 VLOG_ERR("bridge %s: could not enable STP", br->name);
1305 /* Users must either set the port number with the "stp-port-num"
1306 * configuration on all ports or none. If manual configuration
1307 * is not done, then we allocate them sequentially. */
1308 port_num_counter = 0;
1309 port_num_bitmap = bitmap_allocate(STP_MAX_PORTS);
1310 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1311 struct ofproto_port_stp_settings port_s;
1312 struct iface *iface;
1314 port_configure_stp(br->ofproto, port, &port_s,
1315 &port_num_counter, port_num_bitmap);
1317 /* As bonds are not supported, just apply configuration to
1318 * all interfaces. */
1319 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1320 if (ofproto_port_set_stp(br->ofproto, iface->ofp_port,
1322 VLOG_ERR("port %s: could not enable STP", port->name);
1328 if (bitmap_scan(port_num_bitmap, 0, STP_MAX_PORTS) != STP_MAX_PORTS
1329 && port_num_counter) {
1330 VLOG_ERR("bridge %s: must manually configure all STP port "
1331 "IDs or none, disabling", br->name);
1332 ofproto_set_stp(br->ofproto, NULL);
1334 bitmap_free(port_num_bitmap);
1339 bridge_has_bond_fake_iface(const struct bridge *br, const char *name)
1341 const struct port *port = port_lookup(br, name);
1342 return port && port_is_bond_fake_iface(port);
1346 port_is_bond_fake_iface(const struct port *port)
1348 return port->cfg->bond_fake_iface && !list_is_short(&port->ifaces);
1352 add_del_bridges(const struct ovsrec_open_vswitch *cfg)
1354 struct bridge *br, *next;
1355 struct shash new_br;
1358 /* Collect new bridges' names and types. */
1359 shash_init(&new_br);
1360 for (i = 0; i < cfg->n_bridges; i++) {
1361 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1362 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
1364 if (strchr(br_cfg->name, '/')) {
1365 /* Prevent remote ovsdb-server users from accessing arbitrary
1366 * directories, e.g. consider a bridge named "../../../etc/". */
1367 VLOG_WARN_RL(&rl, "ignoring bridge with invalid name \"%s\"",
1369 } else if (!shash_add_once(&new_br, br_cfg->name, br_cfg)) {
1370 VLOG_WARN_RL(&rl, "bridge %s specified twice", br_cfg->name);
1374 /* Get rid of deleted bridges or those whose types have changed.
1375 * Update 'cfg' of bridges that still exist. */
1376 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
1377 br->cfg = shash_find_data(&new_br, br->name);
1378 if (!br->cfg || strcmp(br->type, ofproto_normalize_type(
1379 br->cfg->datapath_type))) {
1384 /* Add new bridges. */
1385 for (i = 0; i < cfg->n_bridges; i++) {
1386 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
1387 struct bridge *br = bridge_lookup(br_cfg->name);
1389 bridge_create(br_cfg);
1393 shash_destroy(&new_br);
1396 /* Configures 'netdev' based on the "options" column in 'iface_cfg'.
1397 * Returns 0 if successful, otherwise a positive errno value. */
1399 iface_set_netdev_config(const struct ovsrec_interface *iface_cfg,
1400 struct netdev *netdev)
1402 return netdev_set_config(netdev, &iface_cfg->options);
1405 /* Opens a network device for 'if_cfg' and configures it. Adds the network
1406 * device to br->ofproto and stores the OpenFlow port number in '*ofp_portp'.
1408 * If successful, returns 0 and stores the network device in '*netdevp'. On
1409 * failure, returns a positive errno value and stores NULL in '*netdevp'. */
1411 iface_do_create(const struct bridge *br,
1412 const struct ovsrec_interface *iface_cfg,
1413 const struct ovsrec_port *port_cfg,
1414 ofp_port_t *ofp_portp, struct netdev **netdevp)
1416 struct netdev *netdev = NULL;
1419 if (netdev_is_reserved_name(iface_cfg->name)) {
1420 VLOG_WARN("could not create interface %s, name is reserved",
1426 error = netdev_open(iface_cfg->name,
1427 iface_get_type(iface_cfg, br->cfg), &netdev);
1429 VLOG_WARN("could not open network device %s (%s)",
1430 iface_cfg->name, ovs_strerror(error));
1434 error = iface_set_netdev_config(iface_cfg, netdev);
1439 *ofp_portp = iface_pick_ofport(iface_cfg);
1440 error = ofproto_port_add(br->ofproto, netdev, ofp_portp);
1445 VLOG_INFO("bridge %s: added interface %s on port %d",
1446 br->name, iface_cfg->name, *ofp_portp);
1448 if ((port_cfg->vlan_mode && !strcmp(port_cfg->vlan_mode, "splinter"))
1449 || iface_is_internal(iface_cfg, br->cfg)) {
1450 netdev_turn_flags_on(netdev, NETDEV_UP, NULL);
1458 netdev_close(netdev);
1462 /* Creates a new iface on 'br' based on 'if_cfg'. The new iface has OpenFlow
1463 * port number 'ofp_port'. If ofp_port is OFPP_NONE, an OpenFlow port is
1464 * automatically allocated for the iface. Takes ownership of and
1465 * deallocates 'if_cfg'.
1467 * Return true if an iface is successfully created, false otherwise. */
1469 iface_create(struct bridge *br, const struct ovsrec_interface *iface_cfg,
1470 const struct ovsrec_port *port_cfg)
1472 struct netdev *netdev;
1473 struct iface *iface;
1474 ofp_port_t ofp_port;
1478 /* Do the bits that can fail up front. */
1479 ovs_assert(!iface_lookup(br, iface_cfg->name));
1480 error = iface_do_create(br, iface_cfg, port_cfg, &ofp_port, &netdev);
1482 iface_clear_db_record(iface_cfg);
1486 /* Get or create the port structure. */
1487 port = port_lookup(br, port_cfg->name);
1489 port = port_create(br, port_cfg);
1492 /* Create the iface structure. */
1493 iface = xzalloc(sizeof *iface);
1494 list_push_back(&port->ifaces, &iface->port_elem);
1495 hmap_insert(&br->iface_by_name, &iface->name_node,
1496 hash_string(iface_cfg->name, 0));
1498 iface->name = xstrdup(iface_cfg->name);
1499 iface->ofp_port = ofp_port;
1500 iface->netdev = netdev;
1501 iface->type = iface_get_type(iface_cfg, br->cfg);
1502 iface->cfg = iface_cfg;
1503 hmap_insert(&br->ifaces, &iface->ofp_port_node,
1504 hash_ofp_port(ofp_port));
1506 /* Populate initial status in database. */
1507 iface_refresh_stats(iface);
1508 iface_refresh_status(iface);
1510 /* Add bond fake iface if necessary. */
1511 if (port_is_bond_fake_iface(port)) {
1512 struct ofproto_port ofproto_port;
1514 if (ofproto_port_query_by_name(br->ofproto, port->name,
1516 struct netdev *netdev;
1519 error = netdev_open(port->name, "internal", &netdev);
1521 ofp_port_t fake_ofp_port = OFPP_NONE;
1522 ofproto_port_add(br->ofproto, netdev, &fake_ofp_port);
1523 netdev_close(netdev);
1525 VLOG_WARN("could not open network device %s (%s)",
1526 port->name, ovs_strerror(error));
1529 /* Already exists, nothing to do. */
1530 ofproto_port_destroy(&ofproto_port);
1537 /* Set forward BPDU option. */
1539 bridge_configure_forward_bpdu(struct bridge *br)
1541 ofproto_set_forward_bpdu(br->ofproto,
1542 smap_get_bool(&br->cfg->other_config,
1547 /* Set MAC learning table configuration for 'br'. */
1549 bridge_configure_mac_table(struct bridge *br)
1551 const char *idle_time_str;
1554 const char *mac_table_size_str;
1557 idle_time_str = smap_get(&br->cfg->other_config, "mac-aging-time");
1558 idle_time = (idle_time_str && atoi(idle_time_str)
1559 ? atoi(idle_time_str)
1560 : MAC_ENTRY_DEFAULT_IDLE_TIME);
1562 mac_table_size_str = smap_get(&br->cfg->other_config, "mac-table-size");
1563 mac_table_size = (mac_table_size_str && atoi(mac_table_size_str)
1564 ? atoi(mac_table_size_str)
1567 ofproto_set_mac_table_config(br->ofproto, idle_time, mac_table_size);
1571 bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
1572 struct iface **hw_addr_iface)
1574 struct hmapx mirror_output_ports;
1577 bool found_addr = false;
1581 *hw_addr_iface = NULL;
1583 /* Did the user request a particular MAC? */
1584 hwaddr = smap_get(&br->cfg->other_config, "hwaddr");
1585 if (hwaddr && eth_addr_from_string(hwaddr, ea)) {
1586 if (eth_addr_is_multicast(ea)) {
1587 VLOG_ERR("bridge %s: cannot set MAC address to multicast "
1588 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1589 } else if (eth_addr_is_zero(ea)) {
1590 VLOG_ERR("bridge %s: cannot set MAC address to zero", br->name);
1596 /* Mirror output ports don't participate in picking the local hardware
1597 * address. ofproto can't help us find out whether a given port is a
1598 * mirror output because we haven't configured mirrors yet, so we need to
1599 * accumulate them ourselves. */
1600 hmapx_init(&mirror_output_ports);
1601 for (i = 0; i < br->cfg->n_mirrors; i++) {
1602 struct ovsrec_mirror *m = br->cfg->mirrors[i];
1603 if (m->output_port) {
1604 hmapx_add(&mirror_output_ports, m->output_port);
1608 /* Otherwise choose the minimum non-local MAC address among all of the
1610 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1611 uint8_t iface_ea[ETH_ADDR_LEN];
1612 struct iface *candidate;
1613 struct iface *iface;
1615 /* Mirror output ports don't participate. */
1616 if (hmapx_contains(&mirror_output_ports, port->cfg)) {
1620 /* Choose the MAC address to represent the port. */
1622 if (port->cfg->mac && eth_addr_from_string(port->cfg->mac, iface_ea)) {
1623 /* Find the interface with this Ethernet address (if any) so that
1624 * we can provide the correct devname to the caller. */
1625 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1626 uint8_t candidate_ea[ETH_ADDR_LEN];
1627 if (!netdev_get_etheraddr(candidate->netdev, candidate_ea)
1628 && eth_addr_equals(iface_ea, candidate_ea)) {
1633 /* Choose the interface whose MAC address will represent the port.
1634 * The Linux kernel bonding code always chooses the MAC address of
1635 * the first slave added to a bond, and the Fedora networking
1636 * scripts always add slaves to a bond in alphabetical order, so
1637 * for compatibility we choose the interface with the name that is
1638 * first in alphabetical order. */
1639 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1640 if (!iface || strcmp(candidate->name, iface->name) < 0) {
1645 /* The local port doesn't count (since we're trying to choose its
1646 * MAC address anyway). */
1647 if (iface->ofp_port == OFPP_LOCAL) {
1652 error = netdev_get_etheraddr(iface->netdev, iface_ea);
1658 /* Compare against our current choice. */
1659 if (!eth_addr_is_multicast(iface_ea) &&
1660 !eth_addr_is_local(iface_ea) &&
1661 !eth_addr_is_reserved(iface_ea) &&
1662 !eth_addr_is_zero(iface_ea) &&
1663 (!found_addr || eth_addr_compare_3way(iface_ea, ea) < 0))
1665 memcpy(ea, iface_ea, ETH_ADDR_LEN);
1666 *hw_addr_iface = iface;
1672 memcpy(ea, br->default_ea, ETH_ADDR_LEN);
1673 *hw_addr_iface = NULL;
1676 hmapx_destroy(&mirror_output_ports);
1679 /* Choose and returns the datapath ID for bridge 'br' given that the bridge
1680 * Ethernet address is 'bridge_ea'. If 'bridge_ea' is the Ethernet address of
1681 * an interface on 'br', then that interface must be passed in as
1682 * 'hw_addr_iface'; if 'bridge_ea' was derived some other way, then
1683 * 'hw_addr_iface' must be passed in as a null pointer. */
1685 bridge_pick_datapath_id(struct bridge *br,
1686 const uint8_t bridge_ea[ETH_ADDR_LEN],
1687 struct iface *hw_addr_iface)
1690 * The procedure for choosing a bridge MAC address will, in the most
1691 * ordinary case, also choose a unique MAC that we can use as a datapath
1692 * ID. In some special cases, though, multiple bridges will end up with
1693 * the same MAC address. This is OK for the bridges, but it will confuse
1694 * the OpenFlow controller, because each datapath needs a unique datapath
1697 * Datapath IDs must be unique. It is also very desirable that they be
1698 * stable from one run to the next, so that policy set on a datapath
1701 const char *datapath_id;
1704 datapath_id = smap_get(&br->cfg->other_config, "datapath-id");
1705 if (datapath_id && dpid_from_string(datapath_id, &dpid)) {
1709 if (!hw_addr_iface) {
1711 * A purely internal bridge, that is, one that has no non-virtual
1712 * network devices on it at all, is difficult because it has no
1713 * natural unique identifier at all.
1715 * When the host is a XenServer, we handle this case by hashing the
1716 * host's UUID with the name of the bridge. Names of bridges are
1717 * persistent across XenServer reboots, although they can be reused if
1718 * an internal network is destroyed and then a new one is later
1719 * created, so this is fairly effective.
1721 * When the host is not a XenServer, we punt by using a random MAC
1722 * address on each run.
1724 const char *host_uuid = xenserver_get_host_uuid();
1726 char *combined = xasprintf("%s,%s", host_uuid, br->name);
1727 dpid = dpid_from_hash(combined, strlen(combined));
1733 return eth_addr_to_uint64(bridge_ea);
1737 dpid_from_hash(const void *data, size_t n)
1739 uint8_t hash[SHA1_DIGEST_SIZE];
1741 BUILD_ASSERT_DECL(sizeof hash >= ETH_ADDR_LEN);
1742 sha1_bytes(data, n, hash);
1743 eth_addr_mark_random(hash);
1744 return eth_addr_to_uint64(hash);
1748 iface_refresh_status(struct iface *iface)
1752 enum netdev_features current;
1756 uint8_t mac[ETH_ADDR_LEN];
1760 if (iface_is_synthetic(iface)) {
1766 if (!netdev_get_status(iface->netdev, &smap)) {
1767 ovsrec_interface_set_status(iface->cfg, &smap);
1769 ovsrec_interface_set_status(iface->cfg, NULL);
1772 smap_destroy(&smap);
1774 error = netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
1775 bps = !error ? netdev_features_to_bps(current, 0) : 0;
1777 ovsrec_interface_set_duplex(iface->cfg,
1778 netdev_features_is_full_duplex(current)
1780 ovsrec_interface_set_link_speed(iface->cfg, &bps, 1);
1782 ovsrec_interface_set_duplex(iface->cfg, NULL);
1783 ovsrec_interface_set_link_speed(iface->cfg, NULL, 0);
1786 error = netdev_get_mtu(iface->netdev, &mtu);
1789 ovsrec_interface_set_mtu(iface->cfg, &mtu_64, 1);
1791 ovsrec_interface_set_mtu(iface->cfg, NULL, 0);
1794 error = netdev_get_etheraddr(iface->netdev, mac);
1796 char mac_string[32];
1798 sprintf(mac_string, ETH_ADDR_FMT, ETH_ADDR_ARGS(mac));
1799 ovsrec_interface_set_mac_in_use(iface->cfg, mac_string);
1801 ovsrec_interface_set_mac_in_use(iface->cfg, NULL);
1804 /* The netdev may return a negative number (such as -EOPNOTSUPP)
1805 * if there is no valid ifindex number. */
1806 ifindex64 = netdev_get_ifindex(iface->netdev);
1807 if (ifindex64 < 0) {
1810 ovsrec_interface_set_ifindex(iface->cfg, &ifindex64, 1);
1813 /* Writes 'iface''s CFM statistics to the database. 'iface' must not be
1816 iface_refresh_cfm_stats(struct iface *iface)
1818 const struct ovsrec_interface *cfg = iface->cfg;
1819 struct ofproto_cfm_status status;
1821 if (!ofproto_port_get_cfm_status(iface->port->bridge->ofproto,
1822 iface->ofp_port, &status)) {
1823 ovsrec_interface_set_cfm_fault(cfg, NULL, 0);
1824 ovsrec_interface_set_cfm_fault_status(cfg, NULL, 0);
1825 ovsrec_interface_set_cfm_remote_opstate(cfg, NULL);
1826 ovsrec_interface_set_cfm_flap_count(cfg, NULL, 0);
1827 ovsrec_interface_set_cfm_health(cfg, NULL, 0);
1828 ovsrec_interface_set_cfm_remote_mpids(cfg, NULL, 0);
1830 const char *reasons[CFM_FAULT_N_REASONS];
1831 int64_t cfm_health = status.health;
1832 int64_t cfm_flap_count = status.flap_count;
1833 bool faulted = status.faults != 0;
1836 ovsrec_interface_set_cfm_fault(cfg, &faulted, 1);
1839 for (i = 0; i < CFM_FAULT_N_REASONS; i++) {
1840 int reason = 1 << i;
1841 if (status.faults & reason) {
1842 reasons[j++] = cfm_fault_reason_to_str(reason);
1845 ovsrec_interface_set_cfm_fault_status(cfg, (char **) reasons, j);
1847 ovsrec_interface_set_cfm_flap_count(cfg, &cfm_flap_count, 1);
1849 if (status.remote_opstate >= 0) {
1850 const char *remote_opstate = status.remote_opstate ? "up" : "down";
1851 ovsrec_interface_set_cfm_remote_opstate(cfg, remote_opstate);
1853 ovsrec_interface_set_cfm_remote_opstate(cfg, NULL);
1856 ovsrec_interface_set_cfm_remote_mpids(cfg,
1857 (const int64_t *)status.rmps,
1859 if (cfm_health >= 0) {
1860 ovsrec_interface_set_cfm_health(cfg, &cfm_health, 1);
1862 ovsrec_interface_set_cfm_health(cfg, NULL, 0);
1870 iface_refresh_stats(struct iface *iface)
1872 #define IFACE_STATS \
1873 IFACE_STAT(rx_packets, "rx_packets") \
1874 IFACE_STAT(tx_packets, "tx_packets") \
1875 IFACE_STAT(rx_bytes, "rx_bytes") \
1876 IFACE_STAT(tx_bytes, "tx_bytes") \
1877 IFACE_STAT(rx_dropped, "rx_dropped") \
1878 IFACE_STAT(tx_dropped, "tx_dropped") \
1879 IFACE_STAT(rx_errors, "rx_errors") \
1880 IFACE_STAT(tx_errors, "tx_errors") \
1881 IFACE_STAT(rx_frame_errors, "rx_frame_err") \
1882 IFACE_STAT(rx_over_errors, "rx_over_err") \
1883 IFACE_STAT(rx_crc_errors, "rx_crc_err") \
1884 IFACE_STAT(collisions, "collisions")
1886 #define IFACE_STAT(MEMBER, NAME) + 1
1887 enum { N_IFACE_STATS = IFACE_STATS };
1889 int64_t values[N_IFACE_STATS];
1890 char *keys[N_IFACE_STATS];
1893 struct netdev_stats stats;
1895 if (iface_is_synthetic(iface)) {
1899 /* Intentionally ignore return value, since errors will set 'stats' to
1900 * all-1s, and we will deal with that correctly below. */
1901 netdev_get_stats(iface->netdev, &stats);
1903 /* Copy statistics into keys[] and values[]. */
1905 #define IFACE_STAT(MEMBER, NAME) \
1906 if (stats.MEMBER != UINT64_MAX) { \
1908 values[n] = stats.MEMBER; \
1913 ovs_assert(n <= N_IFACE_STATS);
1915 ovsrec_interface_set_statistics(iface->cfg, keys, values, n);
1920 br_refresh_stp_status(struct bridge *br)
1922 struct smap smap = SMAP_INITIALIZER(&smap);
1923 struct ofproto *ofproto = br->ofproto;
1924 struct ofproto_stp_status status;
1926 if (ofproto_get_stp_status(ofproto, &status)) {
1930 if (!status.enabled) {
1931 ovsrec_bridge_set_status(br->cfg, NULL);
1935 smap_add_format(&smap, "stp_bridge_id", STP_ID_FMT,
1936 STP_ID_ARGS(status.bridge_id));
1937 smap_add_format(&smap, "stp_designated_root", STP_ID_FMT,
1938 STP_ID_ARGS(status.designated_root));
1939 smap_add_format(&smap, "stp_root_path_cost", "%d", status.root_path_cost);
1941 ovsrec_bridge_set_status(br->cfg, &smap);
1942 smap_destroy(&smap);
1946 port_refresh_stp_status(struct port *port)
1948 struct ofproto *ofproto = port->bridge->ofproto;
1949 struct iface *iface;
1950 struct ofproto_port_stp_status status;
1953 if (port_is_synthetic(port)) {
1957 /* STP doesn't currently support bonds. */
1958 if (!list_is_singleton(&port->ifaces)) {
1959 ovsrec_port_set_status(port->cfg, NULL);
1963 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
1964 if (ofproto_port_get_stp_status(ofproto, iface->ofp_port, &status)) {
1968 if (!status.enabled) {
1969 ovsrec_port_set_status(port->cfg, NULL);
1973 /* Set Status column. */
1975 smap_add_format(&smap, "stp_port_id", STP_PORT_ID_FMT, status.port_id);
1976 smap_add(&smap, "stp_state", stp_state_name(status.state));
1977 smap_add_format(&smap, "stp_sec_in_state", "%u", status.sec_in_state);
1978 smap_add(&smap, "stp_role", stp_role_name(status.role));
1979 ovsrec_port_set_status(port->cfg, &smap);
1980 smap_destroy(&smap);
1984 port_refresh_stp_stats(struct port *port)
1986 struct ofproto *ofproto = port->bridge->ofproto;
1987 struct iface *iface;
1988 struct ofproto_port_stp_stats stats;
1990 int64_t int_values[3];
1992 if (port_is_synthetic(port)) {
1996 /* STP doesn't currently support bonds. */
1997 if (!list_is_singleton(&port->ifaces)) {
2001 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
2002 if (ofproto_port_get_stp_stats(ofproto, iface->ofp_port, &stats)) {
2006 if (!stats.enabled) {
2007 ovsrec_port_set_statistics(port->cfg, NULL, NULL, 0);
2011 /* Set Statistics column. */
2012 keys[0] = "stp_tx_count";
2013 int_values[0] = stats.tx_count;
2014 keys[1] = "stp_rx_count";
2015 int_values[1] = stats.rx_count;
2016 keys[2] = "stp_error_count";
2017 int_values[2] = stats.error_count;
2019 ovsrec_port_set_statistics(port->cfg, keys, int_values,
2020 ARRAY_SIZE(int_values));
2024 enable_system_stats(const struct ovsrec_open_vswitch *cfg)
2026 return smap_get_bool(&cfg->other_config, "enable-statistics", false);
2030 reconfigure_system_stats(const struct ovsrec_open_vswitch *cfg)
2032 bool enable = enable_system_stats(cfg);
2034 system_stats_enable(enable);
2036 ovsrec_open_vswitch_set_statistics(cfg, NULL);
2041 run_system_stats(void)
2043 const struct ovsrec_open_vswitch *cfg = ovsrec_open_vswitch_first(idl);
2046 stats = system_stats_run();
2048 struct ovsdb_idl_txn *txn;
2049 struct ovsdb_datum datum;
2051 txn = ovsdb_idl_txn_create(idl);
2052 ovsdb_datum_from_smap(&datum, stats);
2053 ovsdb_idl_txn_write(&cfg->header_, &ovsrec_open_vswitch_col_statistics,
2055 ovsdb_idl_txn_commit(txn);
2056 ovsdb_idl_txn_destroy(txn);
2063 ofp12_controller_role_to_str(enum ofp12_controller_role role)
2066 case OFPCR12_ROLE_EQUAL:
2068 case OFPCR12_ROLE_MASTER:
2070 case OFPCR12_ROLE_SLAVE:
2072 case OFPCR12_ROLE_NOCHANGE:
2074 return "*** INVALID ROLE ***";
2079 refresh_controller_status(void)
2083 const struct ovsrec_controller *cfg;
2087 /* Accumulate status for controllers on all bridges. */
2088 HMAP_FOR_EACH (br, node, &all_bridges) {
2089 ofproto_get_ofproto_controller_info(br->ofproto, &info);
2092 /* Update each controller in the database with current status. */
2093 OVSREC_CONTROLLER_FOR_EACH(cfg, idl) {
2094 struct ofproto_controller_info *cinfo =
2095 shash_find_data(&info, cfg->target);
2098 struct smap smap = SMAP_INITIALIZER(&smap);
2099 const char **values = cinfo->pairs.values;
2100 const char **keys = cinfo->pairs.keys;
2103 for (i = 0; i < cinfo->pairs.n; i++) {
2104 smap_add(&smap, keys[i], values[i]);
2107 ovsrec_controller_set_is_connected(cfg, cinfo->is_connected);
2108 ovsrec_controller_set_role(cfg, ofp12_controller_role_to_str(
2110 ovsrec_controller_set_status(cfg, &smap);
2111 smap_destroy(&smap);
2113 ovsrec_controller_set_is_connected(cfg, false);
2114 ovsrec_controller_set_role(cfg, NULL);
2115 ovsrec_controller_set_status(cfg, NULL);
2119 ofproto_free_ofproto_controller_info(&info);
2124 * Some information in the database must be kept as up-to-date as possible to
2125 * allow controllers to respond rapidly to network outages. We call these
2126 * statistics "instant" stats.
2128 * We wish to update these statistics every INSTANT_INTERVAL_MSEC milliseconds,
2129 * assuming that they've changed. The only means we have to determine whether
2130 * they have changed are:
2132 * - Try to commit changes to the database. If nothing changed, then
2133 * ovsdb_idl_txn_commit() returns TXN_UNCHANGED, otherwise some other
2136 * - instant_stats_run() is called late in the run loop, after anything that
2137 * might change any of the instant stats.
2139 * We use these two facts together to avoid waking the process up every
2140 * INSTANT_INTERVAL_MSEC whether there is any change or not.
2143 /* Minimum interval between writing updates to the instant stats to the
2145 #define INSTANT_INTERVAL_MSEC 100
2147 /* Current instant stats database transaction, NULL if there is no ongoing
2149 static struct ovsdb_idl_txn *instant_txn;
2151 /* Next time (in msec on monotonic clock) at which we will update the instant
2153 static long long int instant_next_txn = LLONG_MIN;
2155 /* True if the run loop has run since we last saw that the instant stats were
2156 * unchanged, that is, this is true if we need to wake up at 'instant_next_txn'
2157 * to refresh the instant stats. */
2158 static bool instant_stats_could_have_changed;
2161 instant_stats_run(void)
2163 enum ovsdb_idl_txn_status status;
2165 instant_stats_could_have_changed = true;
2171 if (time_msec() < instant_next_txn) {
2174 instant_next_txn = time_msec() + INSTANT_INTERVAL_MSEC;
2176 seq = seq_read(connectivity_seq_get());
2177 if (seq == connectivity_seqno) {
2180 connectivity_seqno = seq;
2182 instant_txn = ovsdb_idl_txn_create(idl);
2183 HMAP_FOR_EACH (br, node, &all_bridges) {
2184 struct iface *iface;
2187 br_refresh_stp_status(br);
2189 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
2190 port_refresh_stp_status(port);
2193 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
2194 enum netdev_flags flags;
2196 const char *link_state;
2197 int64_t link_resets;
2200 if (iface_is_synthetic(iface)) {
2204 current = ofproto_port_is_lacp_current(br->ofproto,
2208 ovsrec_interface_set_lacp_current(iface->cfg, &bl, 1);
2210 ovsrec_interface_set_lacp_current(iface->cfg, NULL, 0);
2213 error = netdev_get_flags(iface->netdev, &flags);
2215 const char *state = flags & NETDEV_UP ? "up" : "down";
2216 ovsrec_interface_set_admin_state(iface->cfg, state);
2218 ovsrec_interface_set_admin_state(iface->cfg, NULL);
2221 link_state = netdev_get_carrier(iface->netdev) ? "up" : "down";
2222 ovsrec_interface_set_link_state(iface->cfg, link_state);
2224 link_resets = netdev_get_carrier_resets(iface->netdev);
2225 ovsrec_interface_set_link_resets(iface->cfg, &link_resets, 1);
2227 iface_refresh_cfm_stats(iface);
2230 ofproto_port_get_bfd_status(br->ofproto, iface->ofp_port,
2232 ovsrec_interface_set_bfd_status(iface->cfg, &smap);
2233 smap_destroy(&smap);
2238 status = ovsdb_idl_txn_commit(instant_txn);
2239 if (status != TXN_INCOMPLETE) {
2240 ovsdb_idl_txn_destroy(instant_txn);
2243 if (status == TXN_UNCHANGED) {
2244 instant_stats_could_have_changed = false;
2249 instant_stats_wait(void)
2252 ovsdb_idl_txn_wait(instant_txn);
2253 } else if (instant_stats_could_have_changed) {
2254 poll_timer_wait_until(instant_next_txn);
2265 /* Let each datapath type do the work that it needs to do. */
2267 ofproto_enumerate_types(&types);
2268 SSET_FOR_EACH (type, &types) {
2269 ofproto_type_run(type);
2271 sset_destroy(&types);
2273 /* Let each bridge do the work that it needs to do. */
2274 HMAP_FOR_EACH (br, node, &all_bridges) {
2275 ofproto_run(br->ofproto);
2282 static struct ovsrec_open_vswitch null_cfg;
2283 const struct ovsrec_open_vswitch *cfg;
2285 bool vlan_splinters_changed;
2288 ovsrec_open_vswitch_init(&null_cfg);
2292 if (ovsdb_idl_is_lock_contended(idl)) {
2293 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
2294 struct bridge *br, *next_br;
2296 VLOG_ERR_RL(&rl, "another ovs-vswitchd process is running, "
2297 "disabling this process (pid %ld) until it goes away",
2298 (long int) getpid());
2300 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
2303 /* Since we will not be running system_stats_run() in this process
2304 * with the current situation of multiple ovs-vswitchd daemons,
2305 * disable system stats collection. */
2306 system_stats_enable(false);
2308 } else if (!ovsdb_idl_has_lock(idl)) {
2311 cfg = ovsrec_open_vswitch_first(idl);
2313 /* Initialize the ofproto library. This only needs to run once, but
2314 * it must be done after the configuration is set. If the
2315 * initialization has already occurred, bridge_init_ofproto()
2316 * returns immediately. */
2317 bridge_init_ofproto(cfg);
2319 /* Once the value of flow-restore-wait is false, we no longer should
2320 * check its value from the database. */
2321 if (cfg && ofproto_get_flow_restore_wait()) {
2322 ofproto_set_flow_restore_wait(smap_get_bool(&cfg->other_config,
2323 "flow-restore-wait", false));
2328 /* Re-configure SSL. We do this on every trip through the main loop,
2329 * instead of just when the database changes, because the contents of the
2330 * key and certificate files can change without the database changing.
2332 * We do this before bridge_reconfigure() because that function might
2333 * initiate SSL connections and thus requires SSL to be configured. */
2334 if (cfg && cfg->ssl) {
2335 const struct ovsrec_ssl *ssl = cfg->ssl;
2337 stream_ssl_set_key_and_cert(ssl->private_key, ssl->certificate);
2338 stream_ssl_set_ca_cert_file(ssl->ca_cert, ssl->bootstrap_ca_cert);
2341 /* If VLAN splinters are in use, then we need to reconfigure if VLAN
2342 * usage has changed. */
2343 vlan_splinters_changed = false;
2344 if (vlan_splinters_enabled_anywhere) {
2345 HMAP_FOR_EACH (br, node, &all_bridges) {
2346 if (ofproto_has_vlan_usage_changed(br->ofproto)) {
2347 vlan_splinters_changed = true;
2353 if (ovsdb_idl_get_seqno(idl) != idl_seqno || vlan_splinters_changed) {
2354 struct ovsdb_idl_txn *txn;
2356 idl_seqno = ovsdb_idl_get_seqno(idl);
2357 txn = ovsdb_idl_txn_create(idl);
2358 bridge_reconfigure(cfg ? cfg : &null_cfg);
2361 ovsrec_open_vswitch_set_cur_cfg(cfg, cfg->next_cfg);
2364 /* If we are completing our initial configuration for this run
2365 * of ovs-vswitchd, then keep the transaction around to monitor
2366 * it for completion. */
2367 if (initial_config_done) {
2368 ovsdb_idl_txn_commit(txn);
2369 ovsdb_idl_txn_destroy(txn);
2371 initial_config_done = true;
2372 daemonize_txn = txn;
2376 if (daemonize_txn) {
2377 enum ovsdb_idl_txn_status status = ovsdb_idl_txn_commit(daemonize_txn);
2378 if (status != TXN_INCOMPLETE) {
2379 ovsdb_idl_txn_destroy(daemonize_txn);
2380 daemonize_txn = NULL;
2382 /* ovs-vswitchd has completed initialization, so allow the
2383 * process that forked us to exit successfully. */
2384 daemonize_complete();
2386 vlog_enable_async();
2388 VLOG_INFO_ONCE("%s (Open vSwitch) %s", program_name, VERSION);
2392 /* Refresh interface and mirror stats if necessary. */
2393 if (time_msec() >= iface_stats_timer) {
2395 struct ovsdb_idl_txn *txn;
2397 txn = ovsdb_idl_txn_create(idl);
2398 HMAP_FOR_EACH (br, node, &all_bridges) {
2402 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
2403 struct iface *iface;
2405 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
2406 iface_refresh_stats(iface);
2407 iface_refresh_status(iface);
2410 port_refresh_stp_stats(port);
2413 HMAP_FOR_EACH (m, hmap_node, &br->mirrors) {
2414 mirror_refresh_stats(m);
2418 refresh_controller_status();
2419 ovsdb_idl_txn_commit(txn);
2420 ovsdb_idl_txn_destroy(txn); /* XXX */
2423 iface_stats_timer = time_msec() + IFACE_STATS_INTERVAL;
2427 instant_stats_run();
2436 ovsdb_idl_wait(idl);
2437 if (daemonize_txn) {
2438 ovsdb_idl_txn_wait(daemonize_txn);
2442 ofproto_enumerate_types(&types);
2443 SSET_FOR_EACH (type, &types) {
2444 ofproto_type_wait(type);
2446 sset_destroy(&types);
2448 if (!hmap_is_empty(&all_bridges)) {
2451 HMAP_FOR_EACH (br, node, &all_bridges) {
2452 ofproto_wait(br->ofproto);
2454 poll_timer_wait_until(iface_stats_timer);
2457 system_stats_wait();
2458 instant_stats_wait();
2461 /* Adds some memory usage statistics for bridges into 'usage', for use with
2462 * memory_report(). */
2464 bridge_get_memory_usage(struct simap *usage)
2471 ofproto_enumerate_types(&types);
2472 SSET_FOR_EACH (type, &types) {
2473 ofproto_type_get_memory_usage(type, usage);
2475 sset_destroy(&types);
2477 HMAP_FOR_EACH (br, node, &all_bridges) {
2478 ofproto_get_memory_usage(br->ofproto, usage);
2482 /* QoS unixctl user interface functions. */
2484 struct qos_unixctl_show_cbdata {
2486 struct iface *iface;
2490 qos_unixctl_show_queue(unsigned int queue_id,
2491 const struct smap *details,
2492 struct iface *iface,
2495 struct netdev_queue_stats stats;
2496 struct smap_node *node;
2499 ds_put_cstr(ds, "\n");
2501 ds_put_format(ds, "Queue %u:\n", queue_id);
2503 ds_put_cstr(ds, "Default:\n");
2506 SMAP_FOR_EACH (node, details) {
2507 ds_put_format(ds, "\t%s: %s\n", node->key, node->value);
2510 error = netdev_get_queue_stats(iface->netdev, queue_id, &stats);
2512 if (stats.tx_packets != UINT64_MAX) {
2513 ds_put_format(ds, "\ttx_packets: %"PRIu64"\n", stats.tx_packets);
2516 if (stats.tx_bytes != UINT64_MAX) {
2517 ds_put_format(ds, "\ttx_bytes: %"PRIu64"\n", stats.tx_bytes);
2520 if (stats.tx_errors != UINT64_MAX) {
2521 ds_put_format(ds, "\ttx_errors: %"PRIu64"\n", stats.tx_errors);
2524 ds_put_format(ds, "\tFailed to get statistics for queue %u: %s",
2525 queue_id, ovs_strerror(error));
2530 qos_unixctl_show(struct unixctl_conn *conn, int argc OVS_UNUSED,
2531 const char *argv[], void *aux OVS_UNUSED)
2533 struct ds ds = DS_EMPTY_INITIALIZER;
2534 struct smap smap = SMAP_INITIALIZER(&smap);
2535 struct iface *iface;
2537 struct smap_node *node;
2539 iface = iface_find(argv[1]);
2541 unixctl_command_reply_error(conn, "no such interface");
2545 netdev_get_qos(iface->netdev, &type, &smap);
2547 if (*type != '\0') {
2548 struct netdev_queue_dump dump;
2549 struct smap details;
2550 unsigned int queue_id;
2552 ds_put_format(&ds, "QoS: %s %s\n", iface->name, type);
2554 SMAP_FOR_EACH (node, &smap) {
2555 ds_put_format(&ds, "%s: %s\n", node->key, node->value);
2558 smap_init(&details);
2559 NETDEV_QUEUE_FOR_EACH (&queue_id, &details, &dump, iface->netdev) {
2560 qos_unixctl_show_queue(queue_id, &details, iface, &ds);
2562 smap_destroy(&details);
2564 unixctl_command_reply(conn, ds_cstr(&ds));
2566 ds_put_format(&ds, "QoS not configured on %s\n", iface->name);
2567 unixctl_command_reply_error(conn, ds_cstr(&ds));
2570 smap_destroy(&smap);
2574 /* Bridge reconfiguration functions. */
2576 bridge_create(const struct ovsrec_bridge *br_cfg)
2580 ovs_assert(!bridge_lookup(br_cfg->name));
2581 br = xzalloc(sizeof *br);
2583 br->name = xstrdup(br_cfg->name);
2584 br->type = xstrdup(ofproto_normalize_type(br_cfg->datapath_type));
2587 /* Derive the default Ethernet address from the bridge's UUID. This should
2588 * be unique and it will be stable between ovs-vswitchd runs. */
2589 memcpy(br->default_ea, &br_cfg->header_.uuid, ETH_ADDR_LEN);
2590 eth_addr_mark_random(br->default_ea);
2592 hmap_init(&br->ports);
2593 hmap_init(&br->ifaces);
2594 hmap_init(&br->iface_by_name);
2595 hmap_init(&br->mirrors);
2597 hmap_insert(&all_bridges, &br->node, hash_string(br->name, 0));
2601 bridge_destroy(struct bridge *br)
2604 struct mirror *mirror, *next_mirror;
2605 struct port *port, *next_port;
2607 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
2610 HMAP_FOR_EACH_SAFE (mirror, next_mirror, hmap_node, &br->mirrors) {
2611 mirror_destroy(mirror);
2614 hmap_remove(&all_bridges, &br->node);
2615 ofproto_destroy(br->ofproto);
2616 hmap_destroy(&br->ifaces);
2617 hmap_destroy(&br->ports);
2618 hmap_destroy(&br->iface_by_name);
2619 hmap_destroy(&br->mirrors);
2626 static struct bridge *
2627 bridge_lookup(const char *name)
2631 HMAP_FOR_EACH_WITH_HASH (br, node, hash_string(name, 0), &all_bridges) {
2632 if (!strcmp(br->name, name)) {
2639 /* Handle requests for a listing of all flows known by the OpenFlow
2640 * stack, including those normally hidden. */
2642 bridge_unixctl_dump_flows(struct unixctl_conn *conn, int argc OVS_UNUSED,
2643 const char *argv[], void *aux OVS_UNUSED)
2648 br = bridge_lookup(argv[1]);
2650 unixctl_command_reply_error(conn, "Unknown bridge");
2655 ofproto_get_all_flows(br->ofproto, &results);
2657 unixctl_command_reply(conn, ds_cstr(&results));
2658 ds_destroy(&results);
2661 /* "bridge/reconnect [BRIDGE]": makes BRIDGE drop all of its controller
2662 * connections and reconnect. If BRIDGE is not specified, then all bridges
2663 * drop their controller connections and reconnect. */
2665 bridge_unixctl_reconnect(struct unixctl_conn *conn, int argc,
2666 const char *argv[], void *aux OVS_UNUSED)
2670 br = bridge_lookup(argv[1]);
2672 unixctl_command_reply_error(conn, "Unknown bridge");
2675 ofproto_reconnect_controllers(br->ofproto);
2677 HMAP_FOR_EACH (br, node, &all_bridges) {
2678 ofproto_reconnect_controllers(br->ofproto);
2681 unixctl_command_reply(conn, NULL);
2685 bridge_get_controllers(const struct bridge *br,
2686 struct ovsrec_controller ***controllersp)
2688 struct ovsrec_controller **controllers;
2689 size_t n_controllers;
2691 controllers = br->cfg->controller;
2692 n_controllers = br->cfg->n_controller;
2694 if (n_controllers == 1 && !strcmp(controllers[0]->target, "none")) {
2700 *controllersp = controllers;
2702 return n_controllers;
2706 bridge_collect_wanted_ports(struct bridge *br,
2707 const unsigned long int *splinter_vlans,
2708 struct shash *wanted_ports)
2712 shash_init(wanted_ports);
2714 for (i = 0; i < br->cfg->n_ports; i++) {
2715 const char *name = br->cfg->ports[i]->name;
2716 if (!shash_add_once(wanted_ports, name, br->cfg->ports[i])) {
2717 VLOG_WARN("bridge %s: %s specified twice as bridge port",
2721 if (bridge_get_controllers(br, NULL)
2722 && !shash_find(wanted_ports, br->name)) {
2723 VLOG_WARN("bridge %s: no port named %s, synthesizing one",
2724 br->name, br->name);
2726 ovsrec_interface_init(&br->synth_local_iface);
2727 ovsrec_port_init(&br->synth_local_port);
2729 br->synth_local_port.interfaces = &br->synth_local_ifacep;
2730 br->synth_local_port.n_interfaces = 1;
2731 br->synth_local_port.name = br->name;
2733 br->synth_local_iface.name = br->name;
2734 br->synth_local_iface.type = "internal";
2736 br->synth_local_ifacep = &br->synth_local_iface;
2738 shash_add(wanted_ports, br->name, &br->synth_local_port);
2741 if (splinter_vlans) {
2742 add_vlan_splinter_ports(br, splinter_vlans, wanted_ports);
2746 /* Deletes "struct port"s and "struct iface"s under 'br' which aren't
2747 * consistent with 'br->cfg'. Updates 'br->if_cfg_queue' with interfaces which
2748 * 'br' needs to complete its configuration. */
2750 bridge_del_ports(struct bridge *br, const struct shash *wanted_ports)
2752 struct shash_node *port_node;
2753 struct port *port, *next;
2755 /* Get rid of deleted ports.
2756 * Get rid of deleted interfaces on ports that still exist. */
2757 HMAP_FOR_EACH_SAFE (port, next, hmap_node, &br->ports) {
2758 port->cfg = shash_find_data(wanted_ports, port->name);
2762 port_del_ifaces(port);
2766 /* Update iface->cfg and iface->type in interfaces that still exist. */
2767 SHASH_FOR_EACH (port_node, wanted_ports) {
2768 const struct ovsrec_port *port = port_node->data;
2771 for (i = 0; i < port->n_interfaces; i++) {
2772 const struct ovsrec_interface *cfg = port->interfaces[i];
2773 struct iface *iface = iface_lookup(br, cfg->name);
2774 const char *type = iface_get_type(cfg, br->cfg);
2779 } else if (!strcmp(type, "null")) {
2780 VLOG_WARN_ONCE("%s: The null interface type is deprecated and"
2781 " may be removed in February 2013. Please email"
2782 " dev@openvswitch.org with concerns.",
2785 /* We will add new interfaces later. */
2791 /* Initializes 'oc' appropriately as a management service controller for
2794 * The caller must free oc->target when it is no longer needed. */
2796 bridge_ofproto_controller_for_mgmt(const struct bridge *br,
2797 struct ofproto_controller *oc)
2799 oc->target = xasprintf("punix:%s/%s.mgmt", ovs_rundir(), br->name);
2800 oc->max_backoff = 0;
2801 oc->probe_interval = 60;
2802 oc->band = OFPROTO_OUT_OF_BAND;
2804 oc->burst_limit = 0;
2805 oc->enable_async_msgs = true;
2808 /* Converts ovsrec_controller 'c' into an ofproto_controller in 'oc'. */
2810 bridge_ofproto_controller_from_ovsrec(const struct ovsrec_controller *c,
2811 struct ofproto_controller *oc)
2815 oc->target = c->target;
2816 oc->max_backoff = c->max_backoff ? *c->max_backoff / 1000 : 8;
2817 oc->probe_interval = c->inactivity_probe ? *c->inactivity_probe / 1000 : 5;
2818 oc->band = (!c->connection_mode || !strcmp(c->connection_mode, "in-band")
2819 ? OFPROTO_IN_BAND : OFPROTO_OUT_OF_BAND);
2820 oc->rate_limit = c->controller_rate_limit ? *c->controller_rate_limit : 0;
2821 oc->burst_limit = (c->controller_burst_limit
2822 ? *c->controller_burst_limit : 0);
2823 oc->enable_async_msgs = (!c->enable_async_messages
2824 || *c->enable_async_messages);
2825 dscp = smap_get_int(&c->other_config, "dscp", DSCP_DEFAULT);
2826 if (dscp < 0 || dscp > 63) {
2827 dscp = DSCP_DEFAULT;
2832 /* Configures the IP stack for 'br''s local interface properly according to the
2833 * configuration in 'c'. */
2835 bridge_configure_local_iface_netdev(struct bridge *br,
2836 struct ovsrec_controller *c)
2838 struct netdev *netdev;
2839 struct in_addr mask, gateway;
2841 struct iface *local_iface;
2844 /* If there's no local interface or no IP address, give up. */
2845 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
2846 if (!local_iface || !c->local_ip || !inet_aton(c->local_ip, &ip)) {
2850 /* Bring up the local interface. */
2851 netdev = local_iface->netdev;
2852 netdev_turn_flags_on(netdev, NETDEV_UP, NULL);
2854 /* Configure the IP address and netmask. */
2855 if (!c->local_netmask
2856 || !inet_aton(c->local_netmask, &mask)
2858 mask.s_addr = guess_netmask(ip.s_addr);
2860 if (!netdev_set_in4(netdev, ip, mask)) {
2861 VLOG_INFO("bridge %s: configured IP address "IP_FMT", netmask "IP_FMT,
2862 br->name, IP_ARGS(ip.s_addr), IP_ARGS(mask.s_addr));
2865 /* Configure the default gateway. */
2866 if (c->local_gateway
2867 && inet_aton(c->local_gateway, &gateway)
2868 && gateway.s_addr) {
2869 if (!netdev_add_router(netdev, gateway)) {
2870 VLOG_INFO("bridge %s: configured gateway "IP_FMT,
2871 br->name, IP_ARGS(gateway.s_addr));
2876 /* Returns true if 'a' and 'b' are the same except that any number of slashes
2877 * in either string are treated as equal to any number of slashes in the other,
2878 * e.g. "x///y" is equal to "x/y".
2880 * Also, if 'b_stoplen' bytes from 'b' are found to be equal to corresponding
2881 * bytes from 'a', the function considers this success. Specify 'b_stoplen' as
2882 * SIZE_MAX to compare all of 'a' to all of 'b' rather than just a prefix of
2883 * 'b' against a prefix of 'a'.
2886 equal_pathnames(const char *a, const char *b, size_t b_stoplen)
2888 const char *b_start = b;
2890 if (b - b_start >= b_stoplen) {
2892 } else if (*a != *b) {
2894 } else if (*a == '/') {
2895 a += strspn(a, "/");
2896 b += strspn(b, "/");
2897 } else if (*a == '\0') {
2907 bridge_configure_remotes(struct bridge *br,
2908 const struct sockaddr_in *managers, size_t n_managers)
2910 bool disable_in_band;
2912 struct ovsrec_controller **controllers;
2913 size_t n_controllers;
2915 enum ofproto_fail_mode fail_mode;
2917 struct ofproto_controller *ocs;
2921 /* Check if we should disable in-band control on this bridge. */
2922 disable_in_band = smap_get_bool(&br->cfg->other_config, "disable-in-band",
2925 /* Set OpenFlow queue ID for in-band control. */
2926 ofproto_set_in_band_queue(br->ofproto,
2927 smap_get_int(&br->cfg->other_config,
2928 "in-band-queue", -1));
2930 if (disable_in_band) {
2931 ofproto_set_extra_in_band_remotes(br->ofproto, NULL, 0);
2933 ofproto_set_extra_in_band_remotes(br->ofproto, managers, n_managers);
2936 n_controllers = bridge_get_controllers(br, &controllers);
2938 ocs = xmalloc((n_controllers + 1) * sizeof *ocs);
2941 bridge_ofproto_controller_for_mgmt(br, &ocs[n_ocs++]);
2942 for (i = 0; i < n_controllers; i++) {
2943 struct ovsrec_controller *c = controllers[i];
2945 if (!strncmp(c->target, "punix:", 6)
2946 || !strncmp(c->target, "unix:", 5)) {
2947 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2950 if (!strncmp(c->target, "unix:", 5)) {
2951 /* Connect to a listening socket */
2952 whitelist = xasprintf("unix:%s/", ovs_rundir());
2953 if (strchr(c->target, '/') &&
2954 !equal_pathnames(c->target, whitelist,
2955 strlen(whitelist))) {
2956 /* Absolute path specified, but not in ovs_rundir */
2957 VLOG_ERR_RL(&rl, "bridge %s: Not connecting to socket "
2958 "controller \"%s\" due to possibility for "
2959 "remote exploit. Instead, specify socket "
2960 "in whitelisted \"%s\" or connect to "
2961 "\"unix:%s/%s.mgmt\" (which is always "
2962 "available without special configuration).",
2963 br->name, c->target, whitelist,
2964 ovs_rundir(), br->name);
2969 whitelist = xasprintf("punix:%s/%s.controller",
2970 ovs_rundir(), br->name);
2971 if (!equal_pathnames(c->target, whitelist, SIZE_MAX)) {
2972 /* Prevent remote ovsdb-server users from accessing
2973 * arbitrary Unix domain sockets and overwriting arbitrary
2975 VLOG_ERR_RL(&rl, "bridge %s: Not adding Unix domain socket "
2976 "controller \"%s\" due to possibility of "
2977 "overwriting local files. Instead, specify "
2978 "whitelisted \"%s\" or connect to "
2979 "\"unix:%s/%s.mgmt\" (which is always "
2980 "available without special configuration).",
2981 br->name, c->target, whitelist,
2982 ovs_rundir(), br->name);
2991 bridge_configure_local_iface_netdev(br, c);
2992 bridge_ofproto_controller_from_ovsrec(c, &ocs[n_ocs]);
2993 if (disable_in_band) {
2994 ocs[n_ocs].band = OFPROTO_OUT_OF_BAND;
2999 ofproto_set_controllers(br->ofproto, ocs, n_ocs,
3000 bridge_get_allowed_versions(br));
3001 free(ocs[0].target); /* From bridge_ofproto_controller_for_mgmt(). */
3004 /* Set the fail-mode. */
3005 fail_mode = !br->cfg->fail_mode
3006 || !strcmp(br->cfg->fail_mode, "standalone")
3007 ? OFPROTO_FAIL_STANDALONE
3008 : OFPROTO_FAIL_SECURE;
3009 ofproto_set_fail_mode(br->ofproto, fail_mode);
3011 /* Configure OpenFlow controller connection snooping. */
3012 if (!ofproto_has_snoops(br->ofproto)) {
3016 sset_add_and_free(&snoops, xasprintf("punix:%s/%s.snoop",
3017 ovs_rundir(), br->name));
3018 ofproto_set_snoops(br->ofproto, &snoops);
3019 sset_destroy(&snoops);
3024 bridge_configure_tables(struct bridge *br)
3026 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
3030 n_tables = ofproto_get_n_tables(br->ofproto);
3032 for (i = 0; i < n_tables; i++) {
3033 struct ofproto_table_settings s;
3036 s.max_flows = UINT_MAX;
3039 s.n_prefix_fields = 0;
3040 memset(s.prefix_fields, ~0, sizeof(s.prefix_fields));
3042 if (j < br->cfg->n_flow_tables && i == br->cfg->key_flow_tables[j]) {
3043 struct ovsrec_flow_table *cfg = br->cfg->value_flow_tables[j++];
3046 if (cfg->n_flow_limit && *cfg->flow_limit < UINT_MAX) {
3047 s.max_flows = *cfg->flow_limit;
3049 if (cfg->overflow_policy
3050 && !strcmp(cfg->overflow_policy, "evict")) {
3052 s.groups = xmalloc(cfg->n_groups * sizeof *s.groups);
3053 for (k = 0; k < cfg->n_groups; k++) {
3054 const char *string = cfg->groups[k];
3057 msg = mf_parse_subfield__(&s.groups[k], &string);
3059 VLOG_WARN_RL(&rl, "bridge %s table %d: error parsing "
3060 "'groups' (%s)", br->name, i, msg);
3062 } else if (*string) {
3063 VLOG_WARN_RL(&rl, "bridge %s table %d: 'groups' "
3064 "element '%s' contains trailing garbage",
3065 br->name, i, cfg->groups[k]);
3071 /* Prefix lookup fields. */
3072 s.n_prefix_fields = 0;
3073 for (k = 0; k < cfg->n_prefixes; k++) {
3074 const char *name = cfg->prefixes[k];
3075 const struct mf_field *mf = mf_from_name(name);
3077 VLOG_WARN("bridge %s: 'prefixes' with unknown field: %s",
3081 if (mf->flow_be32ofs < 0 || mf->n_bits % 32) {
3082 VLOG_WARN("bridge %s: 'prefixes' with incompatible field: "
3083 "%s", br->name, name);
3086 if (s.n_prefix_fields >= ARRAY_SIZE(s.prefix_fields)) {
3087 VLOG_WARN("bridge %s: 'prefixes' with too many fields, "
3088 "field not used: %s", br->name, name);
3091 s.prefix_fields[s.n_prefix_fields++] = mf->id;
3093 if (s.n_prefix_fields > 0) {
3095 struct ds ds = DS_EMPTY_INITIALIZER;
3096 for (k = 0; k < s.n_prefix_fields; k++) {
3098 ds_put_char(&ds, ',');
3100 ds_put_cstr(&ds, mf_from_id(s.prefix_fields[k])->name);
3102 VLOG_INFO("bridge %s table %d: Prefix lookup with: %s.",
3103 br->name, i, ds_cstr(&ds));
3108 ofproto_configure_table(br->ofproto, i, &s);
3112 for (; j < br->cfg->n_flow_tables; j++) {
3113 VLOG_WARN_RL(&rl, "bridge %s: ignoring configuration for flow table "
3114 "%"PRId64" not supported by this datapath", br->name,
3115 br->cfg->key_flow_tables[j]);
3120 bridge_configure_dp_desc(struct bridge *br)
3122 ofproto_set_dp_desc(br->ofproto,
3123 smap_get(&br->cfg->other_config, "dp-desc"));
3126 /* Port functions. */
3128 static void iface_destroy__(struct iface *);
3130 static struct port *
3131 port_create(struct bridge *br, const struct ovsrec_port *cfg)
3135 port = xzalloc(sizeof *port);
3137 port->name = xstrdup(cfg->name);
3139 list_init(&port->ifaces);
3141 hmap_insert(&br->ports, &port->hmap_node, hash_string(port->name, 0));
3145 /* Deletes interfaces from 'port' that are no longer configured for it. */
3147 port_del_ifaces(struct port *port)
3149 struct iface *iface, *next;
3150 struct sset new_ifaces;
3153 /* Collect list of new interfaces. */
3154 sset_init(&new_ifaces);
3155 for (i = 0; i < port->cfg->n_interfaces; i++) {
3156 const char *name = port->cfg->interfaces[i]->name;
3157 const char *type = port->cfg->interfaces[i]->type;
3158 if (strcmp(type, "null")) {
3159 sset_add(&new_ifaces, name);
3163 /* Get rid of deleted interfaces. */
3164 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
3165 if (!sset_contains(&new_ifaces, iface->name)) {
3166 iface_destroy(iface);
3170 sset_destroy(&new_ifaces);
3174 port_destroy(struct port *port)
3177 struct bridge *br = port->bridge;
3178 struct iface *iface, *next;
3181 ofproto_bundle_unregister(br->ofproto, port);
3184 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
3185 iface_destroy__(iface);
3188 hmap_remove(&br->ports, &port->hmap_node);
3194 static struct port *
3195 port_lookup(const struct bridge *br, const char *name)
3199 HMAP_FOR_EACH_WITH_HASH (port, hmap_node, hash_string(name, 0),
3201 if (!strcmp(port->name, name)) {
3209 enable_lacp(struct port *port, bool *activep)
3211 if (!port->cfg->lacp) {
3212 /* XXX when LACP implementation has been sufficiently tested, enable by
3213 * default and make active on bonded ports. */
3215 } else if (!strcmp(port->cfg->lacp, "off")) {
3217 } else if (!strcmp(port->cfg->lacp, "active")) {
3220 } else if (!strcmp(port->cfg->lacp, "passive")) {
3224 VLOG_WARN("port %s: unknown LACP mode %s",
3225 port->name, port->cfg->lacp);
3230 static struct lacp_settings *
3231 port_configure_lacp(struct port *port, struct lacp_settings *s)
3233 const char *lacp_time, *system_id;
3236 if (!enable_lacp(port, &s->active)) {
3240 s->name = port->name;
3242 system_id = smap_get(&port->cfg->other_config, "lacp-system-id");
3244 if (!ovs_scan(system_id, ETH_ADDR_SCAN_FMT,
3245 ETH_ADDR_SCAN_ARGS(s->id))) {
3246 VLOG_WARN("port %s: LACP system ID (%s) must be an Ethernet"
3247 " address.", port->name, system_id);
3251 memcpy(s->id, port->bridge->ea, ETH_ADDR_LEN);
3254 if (eth_addr_is_zero(s->id)) {
3255 VLOG_WARN("port %s: Invalid zero LACP system ID.", port->name);
3259 /* Prefer bondable links if unspecified. */
3260 priority = smap_get_int(&port->cfg->other_config, "lacp-system-priority",
3262 s->priority = (priority > 0 && priority <= UINT16_MAX
3264 : UINT16_MAX - !list_is_short(&port->ifaces));
3266 lacp_time = smap_get(&port->cfg->other_config, "lacp-time");
3267 s->fast = lacp_time && !strcasecmp(lacp_time, "fast");
3269 s->fallback_ab_cfg = smap_get_bool(&port->cfg->other_config,
3270 "lacp-fallback-ab", false);
3276 iface_configure_lacp(struct iface *iface, struct lacp_slave_settings *s)
3278 int priority, portid, key;
3280 portid = smap_get_int(&iface->cfg->other_config, "lacp-port-id", 0);
3281 priority = smap_get_int(&iface->cfg->other_config, "lacp-port-priority",
3283 key = smap_get_int(&iface->cfg->other_config, "lacp-aggregation-key", 0);
3285 if (portid <= 0 || portid > UINT16_MAX) {
3286 portid = ofp_to_u16(iface->ofp_port);
3289 if (priority <= 0 || priority > UINT16_MAX) {
3290 priority = UINT16_MAX;
3293 if (key < 0 || key > UINT16_MAX) {
3297 s->name = iface->name;
3299 s->priority = priority;
3304 port_configure_bond(struct port *port, struct bond_settings *s)
3306 const char *detect_s;
3307 struct iface *iface;
3308 int miimon_interval;
3310 s->name = port->name;
3312 if (port->cfg->bond_mode) {
3313 if (!bond_mode_from_string(&s->balance, port->cfg->bond_mode)) {
3314 VLOG_WARN("port %s: unknown bond_mode %s, defaulting to %s",
3315 port->name, port->cfg->bond_mode,
3316 bond_mode_to_string(s->balance));
3319 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
3321 /* XXX: Post version 1.5.*, the default bond_mode changed from SLB to
3322 * active-backup. At some point we should remove this warning. */
3323 VLOG_WARN_RL(&rl, "port %s: Using the default bond_mode %s. Note that"
3324 " in previous versions, the default bond_mode was"
3325 " balance-slb", port->name,
3326 bond_mode_to_string(s->balance));
3328 if (s->balance == BM_SLB && port->bridge->cfg->n_flood_vlans) {
3329 VLOG_WARN("port %s: SLB bonds are incompatible with flood_vlans, "
3330 "please use another bond type or disable flood_vlans",
3334 miimon_interval = smap_get_int(&port->cfg->other_config,
3335 "bond-miimon-interval", 0);
3336 if (miimon_interval <= 0) {
3337 miimon_interval = 200;
3340 detect_s = smap_get(&port->cfg->other_config, "bond-detect-mode");
3341 if (!detect_s || !strcmp(detect_s, "carrier")) {
3342 miimon_interval = 0;
3343 } else if (strcmp(detect_s, "miimon")) {
3344 VLOG_WARN("port %s: unsupported bond-detect-mode %s, "
3345 "defaulting to carrier", port->name, detect_s);
3346 miimon_interval = 0;
3349 s->up_delay = MAX(0, port->cfg->bond_updelay);
3350 s->down_delay = MAX(0, port->cfg->bond_downdelay);
3351 s->basis = smap_get_int(&port->cfg->other_config, "bond-hash-basis", 0);
3352 s->rebalance_interval = smap_get_int(&port->cfg->other_config,
3353 "bond-rebalance-interval", 10000);
3354 if (s->rebalance_interval && s->rebalance_interval < 1000) {
3355 s->rebalance_interval = 1000;
3358 s->fake_iface = port->cfg->bond_fake_iface;
3360 s->lacp_fallback_ab_cfg = smap_get_bool(&port->cfg->other_config,
3361 "lacp-fallback-ab", false);
3363 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
3364 netdev_set_miimon_interval(iface->netdev, miimon_interval);
3368 /* Returns true if 'port' is synthetic, that is, if we constructed it locally
3369 * instead of obtaining it from the database. */
3371 port_is_synthetic(const struct port *port)
3373 return ovsdb_idl_row_is_synthetic(&port->cfg->header_);
3376 /* Interface functions. */
3379 iface_is_internal(const struct ovsrec_interface *iface,
3380 const struct ovsrec_bridge *br)
3382 /* The local port and "internal" ports are always "internal". */
3383 return !strcmp(iface->type, "internal") || !strcmp(iface->name, br->name);
3386 /* Returns the correct network device type for interface 'iface' in bridge
3389 iface_get_type(const struct ovsrec_interface *iface,
3390 const struct ovsrec_bridge *br)
3394 /* The local port always has type "internal". Other ports take
3395 * their type from the database and default to "system" if none is
3397 if (iface_is_internal(iface, br)) {
3400 type = iface->type[0] ? iface->type : "system";
3403 return ofproto_port_open_type(br->datapath_type, type);
3407 iface_destroy__(struct iface *iface)
3410 struct port *port = iface->port;
3411 struct bridge *br = port->bridge;
3413 if (br->ofproto && iface->ofp_port != OFPP_NONE) {
3414 ofproto_port_unregister(br->ofproto, iface->ofp_port);
3417 if (iface->ofp_port != OFPP_NONE) {
3418 hmap_remove(&br->ifaces, &iface->ofp_port_node);
3421 list_remove(&iface->port_elem);
3422 hmap_remove(&br->iface_by_name, &iface->name_node);
3424 netdev_close(iface->netdev);
3432 iface_destroy(struct iface *iface)
3435 struct port *port = iface->port;
3437 iface_destroy__(iface);
3438 if (list_is_empty(&port->ifaces)) {
3444 static struct iface *
3445 iface_lookup(const struct bridge *br, const char *name)
3447 struct iface *iface;
3449 HMAP_FOR_EACH_WITH_HASH (iface, name_node, hash_string(name, 0),
3450 &br->iface_by_name) {
3451 if (!strcmp(iface->name, name)) {
3459 static struct iface *
3460 iface_find(const char *name)
3462 const struct bridge *br;
3464 HMAP_FOR_EACH (br, node, &all_bridges) {
3465 struct iface *iface = iface_lookup(br, name);
3474 static struct iface *
3475 iface_from_ofp_port(const struct bridge *br, ofp_port_t ofp_port)
3477 struct iface *iface;
3479 HMAP_FOR_EACH_IN_BUCKET (iface, ofp_port_node, hash_ofp_port(ofp_port),
3481 if (iface->ofp_port == ofp_port) {
3488 /* Set Ethernet address of 'iface', if one is specified in the configuration
3491 iface_set_mac(struct iface *iface, const uint8_t *mac)
3493 uint8_t ea[ETH_ADDR_LEN];
3495 if (strcmp(iface->type, "internal")) {
3499 if (iface->cfg->mac && eth_addr_from_string(iface->cfg->mac, ea)) {
3504 if (iface->ofp_port == OFPP_LOCAL) {
3505 VLOG_ERR("interface %s: ignoring mac in Interface record "
3506 "(use Bridge record to set local port's mac)",
3508 } else if (eth_addr_is_multicast(mac)) {
3509 VLOG_ERR("interface %s: cannot set MAC to multicast address",
3512 int error = netdev_set_etheraddr(iface->netdev, mac);
3514 VLOG_ERR("interface %s: setting MAC failed (%s)",
3515 iface->name, ovs_strerror(error));
3521 /* Sets the ofport column of 'if_cfg' to 'ofport'. */
3523 iface_set_ofport(const struct ovsrec_interface *if_cfg, ofp_port_t ofport)
3525 if (if_cfg && !ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
3526 int64_t port = ofport == OFPP_NONE ? -1 : ofp_to_u16(ofport);
3527 ovsrec_interface_set_ofport(if_cfg, &port, 1);
3531 /* Clears all of the fields in 'if_cfg' that indicate interface status, and
3532 * sets the "ofport" field to -1.
3534 * This is appropriate when 'if_cfg''s interface cannot be created or is
3535 * otherwise invalid. */
3537 iface_clear_db_record(const struct ovsrec_interface *if_cfg)
3539 if (!ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
3540 iface_set_ofport(if_cfg, OFPP_NONE);
3541 ovsrec_interface_set_status(if_cfg, NULL);
3542 ovsrec_interface_set_admin_state(if_cfg, NULL);
3543 ovsrec_interface_set_duplex(if_cfg, NULL);
3544 ovsrec_interface_set_link_speed(if_cfg, NULL, 0);
3545 ovsrec_interface_set_link_state(if_cfg, NULL);
3546 ovsrec_interface_set_mac_in_use(if_cfg, NULL);
3547 ovsrec_interface_set_mtu(if_cfg, NULL, 0);
3548 ovsrec_interface_set_cfm_fault(if_cfg, NULL, 0);
3549 ovsrec_interface_set_cfm_fault_status(if_cfg, NULL, 0);
3550 ovsrec_interface_set_cfm_remote_mpids(if_cfg, NULL, 0);
3551 ovsrec_interface_set_lacp_current(if_cfg, NULL, 0);
3552 ovsrec_interface_set_statistics(if_cfg, NULL, NULL, 0);
3553 ovsrec_interface_set_ifindex(if_cfg, NULL, 0);
3558 queue_ids_include(const struct ovsdb_datum *queues, int64_t target)
3560 union ovsdb_atom atom;
3562 atom.integer = target;
3563 return ovsdb_datum_find_key(queues, &atom, OVSDB_TYPE_INTEGER) != UINT_MAX;
3567 iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos)
3569 struct ofpbuf queues_buf;
3571 ofpbuf_init(&queues_buf, 0);
3573 if (!qos || qos->type[0] == '\0' || qos->n_queues < 1) {
3574 netdev_set_qos(iface->netdev, NULL, NULL);
3576 const struct ovsdb_datum *queues;
3577 struct netdev_queue_dump dump;
3578 unsigned int queue_id;
3579 struct smap details;
3583 /* Configure top-level Qos for 'iface'. */
3584 netdev_set_qos(iface->netdev, qos->type, &qos->other_config);
3586 /* Deconfigure queues that were deleted. */
3587 queues = ovsrec_qos_get_queues(qos, OVSDB_TYPE_INTEGER,
3589 smap_init(&details);
3590 NETDEV_QUEUE_FOR_EACH (&queue_id, &details, &dump, iface->netdev) {
3591 if (!queue_ids_include(queues, queue_id)) {
3592 netdev_delete_queue(iface->netdev, queue_id);
3595 smap_destroy(&details);
3597 /* Configure queues for 'iface'. */
3599 for (i = 0; i < qos->n_queues; i++) {
3600 const struct ovsrec_queue *queue = qos->value_queues[i];
3601 unsigned int queue_id = qos->key_queues[i];
3603 if (queue_id == 0) {
3607 if (queue->n_dscp == 1) {
3608 struct ofproto_port_queue *port_queue;
3610 port_queue = ofpbuf_put_uninit(&queues_buf,
3611 sizeof *port_queue);
3612 port_queue->queue = queue_id;
3613 port_queue->dscp = queue->dscp[0];
3616 netdev_set_queue(iface->netdev, queue_id, &queue->other_config);
3619 struct smap details;
3621 smap_init(&details);
3622 netdev_set_queue(iface->netdev, 0, &details);
3623 smap_destroy(&details);
3627 if (iface->ofp_port != OFPP_NONE) {
3628 const struct ofproto_port_queue *port_queues = queues_buf.data;
3629 size_t n_queues = queues_buf.size / sizeof *port_queues;
3631 ofproto_port_set_queues(iface->port->bridge->ofproto, iface->ofp_port,
3632 port_queues, n_queues);
3635 netdev_set_policing(iface->netdev,
3636 iface->cfg->ingress_policing_rate,
3637 iface->cfg->ingress_policing_burst);
3639 ofpbuf_uninit(&queues_buf);
3643 iface_configure_cfm(struct iface *iface)
3645 const struct ovsrec_interface *cfg = iface->cfg;
3646 const char *opstate_str;
3647 const char *cfm_ccm_vlan;
3648 struct cfm_settings s;
3649 struct smap netdev_args;
3651 if (!cfg->n_cfm_mpid) {
3652 ofproto_port_clear_cfm(iface->port->bridge->ofproto, iface->ofp_port);
3656 s.check_tnl_key = false;
3657 smap_init(&netdev_args);
3658 if (!netdev_get_config(iface->netdev, &netdev_args)) {
3659 const char *key = smap_get(&netdev_args, "key");
3660 const char *in_key = smap_get(&netdev_args, "in_key");
3662 s.check_tnl_key = (key && !strcmp(key, "flow"))
3663 || (in_key && !strcmp(in_key, "flow"));
3665 smap_destroy(&netdev_args);
3667 s.mpid = *cfg->cfm_mpid;
3668 s.interval = smap_get_int(&iface->cfg->other_config, "cfm_interval", 0);
3669 cfm_ccm_vlan = smap_get(&iface->cfg->other_config, "cfm_ccm_vlan");
3670 s.ccm_pcp = smap_get_int(&iface->cfg->other_config, "cfm_ccm_pcp", 0);
3672 if (s.interval <= 0) {
3676 if (!cfm_ccm_vlan) {
3678 } else if (!strcasecmp("random", cfm_ccm_vlan)) {
3679 s.ccm_vlan = CFM_RANDOM_VLAN;
3681 s.ccm_vlan = atoi(cfm_ccm_vlan);
3682 if (s.ccm_vlan == CFM_RANDOM_VLAN) {
3687 s.extended = smap_get_bool(&iface->cfg->other_config, "cfm_extended",
3689 s.demand = smap_get_bool(&iface->cfg->other_config, "cfm_demand", false);
3691 opstate_str = smap_get(&iface->cfg->other_config, "cfm_opstate");
3692 s.opup = !opstate_str || !strcasecmp("up", opstate_str);
3694 ofproto_port_set_cfm(iface->port->bridge->ofproto, iface->ofp_port, &s);
3697 /* Returns true if 'iface' is synthetic, that is, if we constructed it locally
3698 * instead of obtaining it from the database. */
3700 iface_is_synthetic(const struct iface *iface)
3702 return ovsdb_idl_row_is_synthetic(&iface->cfg->header_);
3706 iface_validate_ofport__(size_t n, int64_t *ofport)
3708 return (n && *ofport >= 1 && *ofport < ofp_to_u16(OFPP_MAX)
3709 ? u16_to_ofp(*ofport)
3714 iface_get_requested_ofp_port(const struct ovsrec_interface *cfg)
3716 return iface_validate_ofport__(cfg->n_ofport_request, cfg->ofport_request);
3720 iface_pick_ofport(const struct ovsrec_interface *cfg)
3722 ofp_port_t requested_ofport = iface_get_requested_ofp_port(cfg);
3723 return (requested_ofport != OFPP_NONE
3725 : iface_validate_ofport__(cfg->n_ofport, cfg->ofport));
3728 /* Port mirroring. */
3730 static struct mirror *
3731 mirror_find_by_uuid(struct bridge *br, const struct uuid *uuid)
3735 HMAP_FOR_EACH_IN_BUCKET (m, hmap_node, uuid_hash(uuid), &br->mirrors) {
3736 if (uuid_equals(uuid, &m->uuid)) {
3744 bridge_configure_mirrors(struct bridge *br)
3746 const struct ovsdb_datum *mc;
3747 unsigned long *flood_vlans;
3748 struct mirror *m, *next;
3751 /* Get rid of deleted mirrors. */
3752 mc = ovsrec_bridge_get_mirrors(br->cfg, OVSDB_TYPE_UUID);
3753 HMAP_FOR_EACH_SAFE (m, next, hmap_node, &br->mirrors) {
3754 union ovsdb_atom atom;
3756 atom.uuid = m->uuid;
3757 if (ovsdb_datum_find_key(mc, &atom, OVSDB_TYPE_UUID) == UINT_MAX) {
3762 /* Add new mirrors and reconfigure existing ones. */
3763 for (i = 0; i < br->cfg->n_mirrors; i++) {
3764 const struct ovsrec_mirror *cfg = br->cfg->mirrors[i];
3765 struct mirror *m = mirror_find_by_uuid(br, &cfg->header_.uuid);
3767 m = mirror_create(br, cfg);
3770 if (!mirror_configure(m)) {
3775 /* Update flooded vlans (for RSPAN). */
3776 flood_vlans = vlan_bitmap_from_array(br->cfg->flood_vlans,
3777 br->cfg->n_flood_vlans);
3778 ofproto_set_flood_vlans(br->ofproto, flood_vlans);
3779 bitmap_free(flood_vlans);
3782 static struct mirror *
3783 mirror_create(struct bridge *br, const struct ovsrec_mirror *cfg)
3787 m = xzalloc(sizeof *m);
3788 m->uuid = cfg->header_.uuid;
3789 hmap_insert(&br->mirrors, &m->hmap_node, uuid_hash(&m->uuid));
3791 m->name = xstrdup(cfg->name);
3797 mirror_destroy(struct mirror *m)
3800 struct bridge *br = m->bridge;
3803 ofproto_mirror_unregister(br->ofproto, m);
3806 hmap_remove(&br->mirrors, &m->hmap_node);
3813 mirror_collect_ports(struct mirror *m,
3814 struct ovsrec_port **in_ports, int n_in_ports,
3815 void ***out_portsp, size_t *n_out_portsp)
3817 void **out_ports = xmalloc(n_in_ports * sizeof *out_ports);
3818 size_t n_out_ports = 0;
3821 for (i = 0; i < n_in_ports; i++) {
3822 const char *name = in_ports[i]->name;
3823 struct port *port = port_lookup(m->bridge, name);
3825 out_ports[n_out_ports++] = port;
3827 VLOG_WARN("bridge %s: mirror %s cannot match on nonexistent "
3828 "port %s", m->bridge->name, m->name, name);
3831 *out_portsp = out_ports;
3832 *n_out_portsp = n_out_ports;
3836 mirror_configure(struct mirror *m)
3838 const struct ovsrec_mirror *cfg = m->cfg;
3839 struct ofproto_mirror_settings s;
3842 if (strcmp(cfg->name, m->name)) {
3844 m->name = xstrdup(cfg->name);
3848 /* Get output port or VLAN. */
3849 if (cfg->output_port) {
3850 s.out_bundle = port_lookup(m->bridge, cfg->output_port->name);
3851 if (!s.out_bundle) {
3852 VLOG_ERR("bridge %s: mirror %s outputs to port not on bridge",
3853 m->bridge->name, m->name);
3856 s.out_vlan = UINT16_MAX;
3858 if (cfg->output_vlan) {
3859 VLOG_ERR("bridge %s: mirror %s specifies both output port and "
3860 "output vlan; ignoring output vlan",
3861 m->bridge->name, m->name);
3863 } else if (cfg->output_vlan) {
3864 /* The database should prevent invalid VLAN values. */
3865 s.out_bundle = NULL;
3866 s.out_vlan = *cfg->output_vlan;
3868 VLOG_ERR("bridge %s: mirror %s does not specify output; ignoring",
3869 m->bridge->name, m->name);
3873 /* Get port selection. */
3874 if (cfg->select_all) {
3875 size_t n_ports = hmap_count(&m->bridge->ports);
3876 void **ports = xmalloc(n_ports * sizeof *ports);
3881 HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) {
3891 /* Get ports, dropping ports that don't exist.
3892 * The IDL ensures that there are no duplicates. */
3893 mirror_collect_ports(m, cfg->select_src_port, cfg->n_select_src_port,
3894 &s.srcs, &s.n_srcs);
3895 mirror_collect_ports(m, cfg->select_dst_port, cfg->n_select_dst_port,
3896 &s.dsts, &s.n_dsts);
3899 /* Get VLAN selection. */
3900 s.src_vlans = vlan_bitmap_from_array(cfg->select_vlan, cfg->n_select_vlan);
3903 ofproto_mirror_register(m->bridge->ofproto, m, &s);
3906 if (s.srcs != s.dsts) {
3915 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
3917 * This is deprecated. It is only for compatibility with broken device drivers
3918 * in old versions of Linux that do not properly support VLANs when VLAN
3919 * devices are not used. When broken device drivers are no longer in
3920 * widespread use, we will delete these interfaces. */
3922 static struct ovsrec_port **recs;
3923 static size_t n_recs, allocated_recs;
3925 /* Adds 'rec' to a list of recs that have to be destroyed when the VLAN
3926 * splinters are reconfigured. */
3928 register_rec(struct ovsrec_port *rec)
3930 if (n_recs >= allocated_recs) {
3931 recs = x2nrealloc(recs, &allocated_recs, sizeof *recs);
3933 recs[n_recs++] = rec;
3936 /* Frees all of the ports registered with register_reg(). */
3938 free_registered_recs(void)
3942 for (i = 0; i < n_recs; i++) {
3943 struct ovsrec_port *port = recs[i];
3946 for (j = 0; j < port->n_interfaces; j++) {
3947 struct ovsrec_interface *iface = port->interfaces[j];
3952 smap_destroy(&port->other_config);
3953 free(port->interfaces);
3961 /* Returns true if VLAN splinters are enabled on 'iface_cfg', false
3964 vlan_splinters_is_enabled(const struct ovsrec_interface *iface_cfg)
3966 return smap_get_bool(&iface_cfg->other_config, "enable-vlan-splinters",
3970 /* Figures out the set of VLANs that are in use for the purpose of VLAN
3973 * If VLAN splinters are enabled on at least one interface and any VLANs are in
3974 * use, returns a 4096-bit bitmap with a 1-bit for each in-use VLAN (bits 0 and
3975 * 4095 will not be set). The caller is responsible for freeing the bitmap,
3978 * If VLANs splinters are not enabled on any interface or if no VLANs are in
3979 * use, returns NULL.
3981 * Updates 'vlan_splinters_enabled_anywhere'. */
3982 static unsigned long int *
3983 collect_splinter_vlans(const struct ovsrec_open_vswitch *ovs_cfg)
3985 unsigned long int *splinter_vlans;
3986 struct sset splinter_ifaces;
3987 const char *real_dev_name;
3988 struct shash *real_devs;
3989 struct shash_node *node;
3993 /* Free space allocated for synthesized ports and interfaces, since we're
3994 * in the process of reconstructing all of them. */
3995 free_registered_recs();
3997 splinter_vlans = bitmap_allocate(4096);
3998 sset_init(&splinter_ifaces);
3999 vlan_splinters_enabled_anywhere = false;
4000 for (i = 0; i < ovs_cfg->n_bridges; i++) {
4001 struct ovsrec_bridge *br_cfg = ovs_cfg->bridges[i];
4004 for (j = 0; j < br_cfg->n_ports; j++) {
4005 struct ovsrec_port *port_cfg = br_cfg->ports[j];
4008 for (k = 0; k < port_cfg->n_interfaces; k++) {
4009 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[k];
4011 if (vlan_splinters_is_enabled(iface_cfg)) {
4012 vlan_splinters_enabled_anywhere = true;
4013 sset_add(&splinter_ifaces, iface_cfg->name);
4014 vlan_bitmap_from_array__(port_cfg->trunks,
4020 if (port_cfg->tag && *port_cfg->tag > 0 && *port_cfg->tag < 4095) {
4021 bitmap_set1(splinter_vlans, *port_cfg->tag);
4026 if (!vlan_splinters_enabled_anywhere) {
4027 free(splinter_vlans);
4028 sset_destroy(&splinter_ifaces);
4032 HMAP_FOR_EACH (br, node, &all_bridges) {
4034 ofproto_get_vlan_usage(br->ofproto, splinter_vlans);
4038 /* Don't allow VLANs 0 or 4095 to be splintered. VLAN 0 should appear on
4039 * the real device. VLAN 4095 is reserved and Linux doesn't allow a VLAN
4040 * device to be created for it. */
4041 bitmap_set0(splinter_vlans, 0);
4042 bitmap_set0(splinter_vlans, 4095);
4044 /* Delete all VLAN devices that we don't need. */
4046 real_devs = vlandev_get_real_devs();
4047 SHASH_FOR_EACH (node, real_devs) {
4048 const struct vlan_real_dev *real_dev = node->data;
4049 const struct vlan_dev *vlan_dev;
4050 bool real_dev_has_splinters;
4052 real_dev_has_splinters = sset_contains(&splinter_ifaces,
4054 HMAP_FOR_EACH (vlan_dev, hmap_node, &real_dev->vlan_devs) {
4055 if (!real_dev_has_splinters
4056 || !bitmap_is_set(splinter_vlans, vlan_dev->vid)) {
4057 struct netdev *netdev;
4059 if (!netdev_open(vlan_dev->name, "system", &netdev)) {
4060 if (!netdev_get_in4(netdev, NULL, NULL) ||
4061 !netdev_get_in6(netdev, NULL)) {
4062 /* It has an IP address configured, so we don't own
4063 * it. Don't delete it. */
4065 vlandev_del(vlan_dev->name);
4067 netdev_close(netdev);
4074 /* Add all VLAN devices that we need. */
4075 SSET_FOR_EACH (real_dev_name, &splinter_ifaces) {
4078 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
4079 if (!vlandev_get_name(real_dev_name, vid)) {
4080 vlandev_add(real_dev_name, vid);
4087 sset_destroy(&splinter_ifaces);
4089 if (bitmap_scan(splinter_vlans, 0, 4096) >= 4096) {
4090 free(splinter_vlans);
4093 return splinter_vlans;
4096 /* Pushes the configure of VLAN splinter port 'port' (e.g. eth0.9) down to
4099 configure_splinter_port(struct port *port)
4101 struct ofproto *ofproto = port->bridge->ofproto;
4102 ofp_port_t realdev_ofp_port;
4103 const char *realdev_name;
4104 struct iface *vlandev, *realdev;
4106 ofproto_bundle_unregister(port->bridge->ofproto, port);
4108 vlandev = CONTAINER_OF(list_front(&port->ifaces), struct iface,
4111 realdev_name = smap_get(&port->cfg->other_config, "realdev");
4112 realdev = iface_lookup(port->bridge, realdev_name);
4113 realdev_ofp_port = realdev ? realdev->ofp_port : 0;
4115 ofproto_port_set_realdev(ofproto, vlandev->ofp_port, realdev_ofp_port,
4119 static struct ovsrec_port *
4120 synthesize_splinter_port(const char *real_dev_name,
4121 const char *vlan_dev_name, int vid)
4123 struct ovsrec_interface *iface;
4124 struct ovsrec_port *port;
4126 iface = xmalloc(sizeof *iface);
4127 ovsrec_interface_init(iface);
4128 iface->name = xstrdup(vlan_dev_name);
4129 iface->type = "system";
4131 port = xmalloc(sizeof *port);
4132 ovsrec_port_init(port);
4133 port->interfaces = xmemdup(&iface, sizeof iface);
4134 port->n_interfaces = 1;
4135 port->name = xstrdup(vlan_dev_name);
4136 port->vlan_mode = "splinter";
4137 port->tag = xmalloc(sizeof *port->tag);
4140 smap_add(&port->other_config, "realdev", real_dev_name);
4146 /* For each interface with 'br' that has VLAN splinters enabled, adds a
4147 * corresponding ovsrec_port to 'ports' for each splinter VLAN marked with a
4148 * 1-bit in the 'splinter_vlans' bitmap. */
4150 add_vlan_splinter_ports(struct bridge *br,
4151 const unsigned long int *splinter_vlans,
4152 struct shash *ports)
4156 /* We iterate through 'br->cfg->ports' instead of 'ports' here because
4157 * we're modifying 'ports'. */
4158 for (i = 0; i < br->cfg->n_ports; i++) {
4159 const char *name = br->cfg->ports[i]->name;
4160 struct ovsrec_port *port_cfg = shash_find_data(ports, name);
4163 for (j = 0; j < port_cfg->n_interfaces; j++) {
4164 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[j];
4166 if (vlan_splinters_is_enabled(iface_cfg)) {
4167 const char *real_dev_name;
4170 real_dev_name = iface_cfg->name;
4171 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
4172 const char *vlan_dev_name;
4174 vlan_dev_name = vlandev_get_name(real_dev_name, vid);
4176 && !shash_find(ports, vlan_dev_name)) {
4177 shash_add(ports, vlan_dev_name,
4178 synthesize_splinter_port(
4179 real_dev_name, vlan_dev_name, vid));
4188 mirror_refresh_stats(struct mirror *m)
4190 struct ofproto *ofproto = m->bridge->ofproto;
4191 uint64_t tx_packets, tx_bytes;
4194 size_t stat_cnt = 0;
4196 if (ofproto_mirror_get_stats(ofproto, m, &tx_packets, &tx_bytes)) {
4197 ovsrec_mirror_set_statistics(m->cfg, NULL, NULL, 0);
4201 if (tx_packets != UINT64_MAX) {
4202 keys[stat_cnt] = "tx_packets";
4203 values[stat_cnt] = tx_packets;
4206 if (tx_bytes != UINT64_MAX) {
4207 keys[stat_cnt] = "tx_bytes";
4208 values[stat_cnt] = tx_bytes;
4212 ovsrec_mirror_set_statistics(m->cfg, keys, values, stat_cnt);