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 "mcast-snooping.h"
38 #include "meta-flow.h"
40 #include "ofp-print.h"
43 #include "ofproto/bond.h"
44 #include "ofproto/ofproto.h"
45 #include "poll-loop.h"
50 #include "socket-util.h"
52 #include "stream-ssl.h"
54 #include "system-stats.h"
59 #include "lib/vswitch-idl.h"
60 #include "xenserver.h"
62 #include "sflow_api.h"
63 #include "vlan-bitmap.h"
65 VLOG_DEFINE_THIS_MODULE(bridge);
67 COVERAGE_DEFINE(bridge_reconfigure);
70 /* These members are always valid.
72 * They are immutable: they never change between iface_create() and
74 struct list port_elem; /* Element in struct port's "ifaces" list. */
75 struct hmap_node name_node; /* In struct bridge's "iface_by_name" hmap. */
76 struct hmap_node ofp_port_node; /* In struct bridge's "ifaces" hmap. */
77 struct port *port; /* Containing port. */
78 char *name; /* Host network device name. */
79 struct netdev *netdev; /* Network device. */
80 ofp_port_t ofp_port; /* OpenFlow port number. */
83 /* These members are valid only within bridge_reconfigure(). */
84 const char *type; /* Usually same as cfg->type. */
85 const struct ovsrec_interface *cfg;
89 struct uuid uuid; /* UUID of this "mirror" record in database. */
90 struct hmap_node hmap_node; /* In struct bridge's "mirrors" hmap. */
91 struct bridge *bridge;
93 const struct ovsrec_mirror *cfg;
97 struct hmap_node hmap_node; /* Element in struct bridge's "ports" hmap. */
98 struct bridge *bridge;
101 const struct ovsrec_port *cfg;
103 /* An ordinary bridge port has 1 interface.
104 * A bridge port for bonding has at least 2 interfaces. */
105 struct list ifaces; /* List of "struct iface"s. */
109 struct hmap_node node; /* In 'all_bridges'. */
110 char *name; /* User-specified arbitrary name. */
111 char *type; /* Datapath type. */
112 uint8_t ea[ETH_ADDR_LEN]; /* Bridge Ethernet Address. */
113 uint8_t default_ea[ETH_ADDR_LEN]; /* Default MAC. */
114 const struct ovsrec_bridge *cfg;
116 /* OpenFlow switch processing. */
117 struct ofproto *ofproto; /* OpenFlow switch. */
120 struct hmap ports; /* "struct port"s indexed by name. */
121 struct hmap ifaces; /* "struct iface"s indexed by ofp_port. */
122 struct hmap iface_by_name; /* "struct iface"s indexed by name. */
124 /* Port mirroring. */
125 struct hmap mirrors; /* "struct mirror" indexed by UUID. */
127 /* Used during reconfiguration. */
128 struct shash wanted_ports;
130 /* Synthetic local port if necessary. */
131 struct ovsrec_port synth_local_port;
132 struct ovsrec_interface synth_local_iface;
133 struct ovsrec_interface *synth_local_ifacep;
136 /* All bridges, indexed by name. */
137 static struct hmap all_bridges = HMAP_INITIALIZER(&all_bridges);
139 /* OVSDB IDL used to obtain configuration. */
140 static struct ovsdb_idl *idl;
142 /* We want to complete daemonization, fully detaching from our parent process,
143 * only after we have completed our initial configuration, committed our state
144 * to the database, and received confirmation back from the database server
145 * that it applied the commit. This allows our parent process to know that,
146 * post-detach, ephemeral fields such as datapath-id and ofport are very likely
147 * to have already been filled in. (It is only "very likely" rather than
148 * certain because there is always a slim possibility that the transaction will
149 * fail or that some other client has added new bridges, ports, etc. while
150 * ovs-vswitchd was configuring using an old configuration.)
152 * We only need to do this once for our initial configuration at startup, so
153 * 'initial_config_done' tracks whether we've already done it. While we are
154 * waiting for a response to our commit, 'daemonize_txn' tracks the transaction
155 * itself and is otherwise NULL. */
156 static bool initial_config_done;
157 static struct ovsdb_idl_txn *daemonize_txn;
159 /* Most recently processed IDL sequence number. */
160 static unsigned int idl_seqno;
162 /* Track changes to port connectivity. */
163 static uint64_t connectivity_seqno = LLONG_MIN;
165 /* Status update to database.
167 * Some information in the database must be kept as up-to-date as possible to
168 * allow controllers to respond rapidly to network outages. Those status are
169 * updated via the 'status_txn'.
171 * We use the global connectivity sequence number to detect the status change.
172 * Also, to prevent the status update from sending too much to the database,
173 * we check the return status of each update transaction and do not start new
174 * update if the previous transaction status is 'TXN_INCOMPLETE'.
176 * 'statux_txn' is NULL if there is no ongoing status update.
178 * If the previous database transaction was failed (is not 'TXN_SUCCESS',
179 * 'TXN_UNCHANGED' or 'TXN_INCOMPLETE'), 'status_txn_try_again' is set to true,
180 * which will cause the main thread wake up soon and retry the status update.
182 static struct ovsdb_idl_txn *status_txn;
183 static bool status_txn_try_again;
185 /* When the status update transaction returns 'TXN_INCOMPLETE', should register a
186 * timeout in 'STATUS_CHECK_AGAIN_MSEC' to check again. */
187 #define STATUS_CHECK_AGAIN_MSEC 100
189 /* Each time this timer expires, the bridge fetches interface and mirror
190 * statistics and pushes them into the database. */
191 static int stats_timer_interval;
192 static long long int stats_timer = LLONG_MIN;
194 /* In some datapaths, creating and destroying OpenFlow ports can be extremely
195 * expensive. This can cause bridge_reconfigure() to take a long time during
196 * which no other work can be done. To deal with this problem, we limit port
197 * adds and deletions to a window of OFP_PORT_ACTION_WINDOW milliseconds per
198 * call to bridge_reconfigure(). If there is more work to do after the limit
199 * is reached, 'need_reconfigure', is flagged and it's done on the next loop.
200 * This allows the rest of the code to catch up on important things like
201 * forwarding packets. */
202 #define OFP_PORT_ACTION_WINDOW 10
204 static void add_del_bridges(const struct ovsrec_open_vswitch *);
205 static void bridge_run__(void);
206 static void bridge_create(const struct ovsrec_bridge *);
207 static void bridge_destroy(struct bridge *);
208 static struct bridge *bridge_lookup(const char *name);
209 static unixctl_cb_func bridge_unixctl_dump_flows;
210 static unixctl_cb_func bridge_unixctl_reconnect;
211 static size_t bridge_get_controllers(const struct bridge *br,
212 struct ovsrec_controller ***controllersp);
213 static void bridge_collect_wanted_ports(struct bridge *,
214 const unsigned long *splinter_vlans,
215 struct shash *wanted_ports);
216 static void bridge_delete_ofprotos(void);
217 static void bridge_delete_or_reconfigure_ports(struct bridge *);
218 static void bridge_del_ports(struct bridge *,
219 const struct shash *wanted_ports);
220 static void bridge_add_ports(struct bridge *,
221 const struct shash *wanted_ports);
223 static void bridge_configure_datapath_id(struct bridge *);
224 static void bridge_configure_netflow(struct bridge *);
225 static void bridge_configure_forward_bpdu(struct bridge *);
226 static void bridge_configure_mac_table(struct bridge *);
227 static void bridge_configure_mcast_snooping(struct bridge *);
228 static void bridge_configure_sflow(struct bridge *, int *sflow_bridge_number);
229 static void bridge_configure_ipfix(struct bridge *);
230 static void bridge_configure_stp(struct bridge *);
231 static void bridge_configure_tables(struct bridge *);
232 static void bridge_configure_dp_desc(struct bridge *);
233 static void bridge_configure_remotes(struct bridge *,
234 const struct sockaddr_in *managers,
236 static void bridge_pick_local_hw_addr(struct bridge *,
237 uint8_t ea[ETH_ADDR_LEN],
238 struct iface **hw_addr_iface);
239 static uint64_t bridge_pick_datapath_id(struct bridge *,
240 const uint8_t bridge_ea[ETH_ADDR_LEN],
241 struct iface *hw_addr_iface);
242 static uint64_t dpid_from_hash(const void *, size_t nbytes);
243 static bool bridge_has_bond_fake_iface(const struct bridge *,
245 static bool port_is_bond_fake_iface(const struct port *);
247 static unixctl_cb_func qos_unixctl_show;
249 static struct port *port_create(struct bridge *, const struct ovsrec_port *);
250 static void port_del_ifaces(struct port *);
251 static void port_destroy(struct port *);
252 static struct port *port_lookup(const struct bridge *, const char *name);
253 static void port_configure(struct port *);
254 static struct lacp_settings *port_configure_lacp(struct port *,
255 struct lacp_settings *);
256 static void port_configure_bond(struct port *, struct bond_settings *);
257 static bool port_is_synthetic(const struct port *);
259 static void reconfigure_system_stats(const struct ovsrec_open_vswitch *);
260 static void run_system_stats(void);
262 static void bridge_configure_mirrors(struct bridge *);
263 static struct mirror *mirror_create(struct bridge *,
264 const struct ovsrec_mirror *);
265 static void mirror_destroy(struct mirror *);
266 static bool mirror_configure(struct mirror *);
267 static void mirror_refresh_stats(struct mirror *);
269 static void iface_configure_lacp(struct iface *, struct lacp_slave_settings *);
270 static bool iface_create(struct bridge *, const struct ovsrec_interface *,
271 const struct ovsrec_port *);
272 static bool iface_is_internal(const struct ovsrec_interface *iface,
273 const struct ovsrec_bridge *br);
274 static const char *iface_get_type(const struct ovsrec_interface *,
275 const struct ovsrec_bridge *);
276 static void iface_destroy(struct iface *);
277 static void iface_destroy__(struct iface *);
278 static struct iface *iface_lookup(const struct bridge *, const char *name);
279 static struct iface *iface_find(const char *name);
280 static struct iface *iface_from_ofp_port(const struct bridge *,
281 ofp_port_t ofp_port);
282 static void iface_set_mac(const struct bridge *, const struct port *, struct iface *);
283 static void iface_set_ofport(const struct ovsrec_interface *, ofp_port_t ofport);
284 static void iface_clear_db_record(const struct ovsrec_interface *if_cfg, char *errp);
285 static void iface_configure_qos(struct iface *, const struct ovsrec_qos *);
286 static void iface_configure_cfm(struct iface *);
287 static void iface_refresh_cfm_stats(struct iface *);
288 static void iface_refresh_stats(struct iface *);
289 static void iface_refresh_netdev_status(struct iface *);
290 static void iface_refresh_ofproto_status(struct iface *);
291 static bool iface_is_synthetic(const struct iface *);
292 static ofp_port_t iface_get_requested_ofp_port(
293 const struct ovsrec_interface *);
294 static ofp_port_t iface_pick_ofport(const struct ovsrec_interface *);
296 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
298 * This is deprecated. It is only for compatibility with broken device drivers
299 * in old versions of Linux that do not properly support VLANs when VLAN
300 * devices are not used. When broken device drivers are no longer in
301 * widespread use, we will delete these interfaces. */
303 /* True if VLAN splinters are enabled on any interface, false otherwise.*/
304 static bool vlan_splinters_enabled_anywhere;
306 static bool vlan_splinters_is_enabled(const struct ovsrec_interface *);
307 static unsigned long int *collect_splinter_vlans(
308 const struct ovsrec_open_vswitch *);
309 static void configure_splinter_port(struct port *);
310 static void add_vlan_splinter_ports(struct bridge *,
311 const unsigned long int *splinter_vlans,
312 struct shash *ports);
315 bridge_init_ofproto(const struct ovsrec_open_vswitch *cfg)
317 struct shash iface_hints;
318 static bool initialized = false;
325 shash_init(&iface_hints);
328 for (i = 0; i < cfg->n_bridges; i++) {
329 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
332 for (j = 0; j < br_cfg->n_ports; j++) {
333 struct ovsrec_port *port_cfg = br_cfg->ports[j];
336 for (k = 0; k < port_cfg->n_interfaces; k++) {
337 struct ovsrec_interface *if_cfg = port_cfg->interfaces[k];
338 struct iface_hint *iface_hint;
340 iface_hint = xmalloc(sizeof *iface_hint);
341 iface_hint->br_name = br_cfg->name;
342 iface_hint->br_type = br_cfg->datapath_type;
343 iface_hint->ofp_port = iface_pick_ofport(if_cfg);
345 shash_add(&iface_hints, if_cfg->name, iface_hint);
351 ofproto_init(&iface_hints);
353 shash_destroy_free_data(&iface_hints);
357 /* Public functions. */
359 /* Initializes the bridge module, configuring it to obtain its configuration
360 * from an OVSDB server accessed over 'remote', which should be a string in a
361 * form acceptable to ovsdb_idl_create(). */
363 bridge_init(const char *remote)
365 /* Create connection to database. */
366 idl = ovsdb_idl_create(remote, &ovsrec_idl_class, true, true);
367 idl_seqno = ovsdb_idl_get_seqno(idl);
368 ovsdb_idl_set_lock(idl, "ovs_vswitchd");
369 ovsdb_idl_verify_write_only(idl);
371 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_cur_cfg);
372 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_statistics);
373 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_external_ids);
374 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_ovs_version);
375 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_db_version);
376 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_type);
377 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_version);
379 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_datapath_id);
380 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_status);
381 ovsdb_idl_omit(idl, &ovsrec_bridge_col_external_ids);
383 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_status);
384 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_statistics);
385 ovsdb_idl_omit(idl, &ovsrec_port_col_external_ids);
387 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_admin_state);
388 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_duplex);
389 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_speed);
390 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_state);
391 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_resets);
392 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mac_in_use);
393 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ifindex);
394 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mtu);
395 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ofport);
396 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_statistics);
397 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_status);
398 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault);
399 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault_status);
400 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_remote_mpids);
401 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_flap_count);
402 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_health);
403 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_remote_opstate);
404 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_bfd_status);
405 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_lacp_current);
406 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_error);
407 ovsdb_idl_omit(idl, &ovsrec_interface_col_external_ids);
409 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_is_connected);
410 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_role);
411 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_status);
412 ovsdb_idl_omit(idl, &ovsrec_controller_col_external_ids);
414 ovsdb_idl_omit(idl, &ovsrec_qos_col_external_ids);
416 ovsdb_idl_omit(idl, &ovsrec_queue_col_external_ids);
418 ovsdb_idl_omit(idl, &ovsrec_mirror_col_external_ids);
419 ovsdb_idl_omit_alert(idl, &ovsrec_mirror_col_statistics);
421 ovsdb_idl_omit(idl, &ovsrec_netflow_col_external_ids);
422 ovsdb_idl_omit(idl, &ovsrec_sflow_col_external_ids);
423 ovsdb_idl_omit(idl, &ovsrec_ipfix_col_external_ids);
424 ovsdb_idl_omit(idl, &ovsrec_flow_sample_collector_set_col_external_ids);
426 ovsdb_idl_omit(idl, &ovsrec_manager_col_external_ids);
427 ovsdb_idl_omit(idl, &ovsrec_manager_col_inactivity_probe);
428 ovsdb_idl_omit(idl, &ovsrec_manager_col_is_connected);
429 ovsdb_idl_omit(idl, &ovsrec_manager_col_max_backoff);
430 ovsdb_idl_omit(idl, &ovsrec_manager_col_status);
432 ovsdb_idl_omit(idl, &ovsrec_ssl_col_external_ids);
434 /* Register unixctl commands. */
435 unixctl_command_register("qos/show", "interface", 1, 1,
436 qos_unixctl_show, NULL);
437 unixctl_command_register("bridge/dump-flows", "bridge", 1, 1,
438 bridge_unixctl_dump_flows, NULL);
439 unixctl_command_register("bridge/reconnect", "[bridge]", 0, 1,
440 bridge_unixctl_reconnect, NULL);
450 struct bridge *br, *next_br;
452 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
455 ovsdb_idl_destroy(idl);
458 /* Looks at the list of managers in 'ovs_cfg' and extracts their remote IP
459 * addresses and ports into '*managersp' and '*n_managersp'. The caller is
460 * responsible for freeing '*managersp' (with free()).
462 * You may be asking yourself "why does ovs-vswitchd care?", because
463 * ovsdb-server is responsible for connecting to the managers, and ovs-vswitchd
464 * should not be and in fact is not directly involved in that. But
465 * ovs-vswitchd needs to make sure that ovsdb-server can reach the managers, so
466 * it has to tell in-band control where the managers are to enable that.
467 * (Thus, only managers connected in-band are collected.)
470 collect_in_band_managers(const struct ovsrec_open_vswitch *ovs_cfg,
471 struct sockaddr_in **managersp, size_t *n_managersp)
473 struct sockaddr_in *managers = NULL;
474 size_t n_managers = 0;
478 /* Collect all of the potential targets from the "targets" columns of the
479 * rows pointed to by "manager_options", excluding any that are
482 for (i = 0; i < ovs_cfg->n_manager_options; i++) {
483 struct ovsrec_manager *m = ovs_cfg->manager_options[i];
485 if (m->connection_mode && !strcmp(m->connection_mode, "out-of-band")) {
486 sset_find_and_delete(&targets, m->target);
488 sset_add(&targets, m->target);
492 /* Now extract the targets' IP addresses. */
493 if (!sset_is_empty(&targets)) {
496 managers = xmalloc(sset_count(&targets) * sizeof *managers);
497 SSET_FOR_EACH (target, &targets) {
498 struct sockaddr_storage ss;
500 if (stream_parse_target_with_default_port(target, OVSDB_OLD_PORT,
502 && ss.ss_family == AF_INET) {
503 managers[n_managers++] = *(struct sockaddr_in *) &ss;
507 sset_destroy(&targets);
509 *managersp = managers;
510 *n_managersp = n_managers;
514 bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
516 unsigned long int *splinter_vlans;
517 struct sockaddr_in *managers;
518 struct bridge *br, *next;
519 int sflow_bridge_number;
522 COVERAGE_INC(bridge_reconfigure);
524 ofproto_set_flow_limit(smap_get_int(&ovs_cfg->other_config, "flow-limit",
525 OFPROTO_FLOW_LIMIT_DEFAULT));
526 ofproto_set_max_idle(smap_get_int(&ovs_cfg->other_config, "max-idle",
527 OFPROTO_MAX_IDLE_DEFAULT));
530 smap_get_int(&ovs_cfg->other_config, "n-handler-threads", 0),
531 smap_get_int(&ovs_cfg->other_config, "n-revalidator-threads", 0));
533 /* Destroy "struct bridge"s, "struct port"s, and "struct iface"s according
534 * to 'ovs_cfg', with only very minimal configuration otherwise.
536 * This is mostly an update to bridge data structures. Nothing is pushed
537 * down to ofproto or lower layers. */
538 add_del_bridges(ovs_cfg);
539 splinter_vlans = collect_splinter_vlans(ovs_cfg);
540 HMAP_FOR_EACH (br, node, &all_bridges) {
541 bridge_collect_wanted_ports(br, splinter_vlans, &br->wanted_ports);
542 bridge_del_ports(br, &br->wanted_ports);
544 free(splinter_vlans);
546 /* Start pushing configuration changes down to the ofproto layer:
548 * - Delete ofprotos that are no longer configured.
550 * - Delete ports that are no longer configured.
552 * - Reconfigure existing ports to their desired configurations, or
553 * delete them if not possible.
555 * We have to do all the deletions before we can do any additions, because
556 * the ports to be added might require resources that will be freed up by
557 * deletions (they might especially overlap in name). */
558 bridge_delete_ofprotos();
559 HMAP_FOR_EACH (br, node, &all_bridges) {
561 bridge_delete_or_reconfigure_ports(br);
565 /* Finish pushing configuration changes to the ofproto layer:
567 * - Create ofprotos that are missing.
569 * - Add ports that are missing. */
570 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
574 error = ofproto_create(br->name, br->type, &br->ofproto);
576 VLOG_ERR("failed to create bridge %s: %s", br->name,
577 ovs_strerror(error));
578 shash_destroy(&br->wanted_ports);
583 HMAP_FOR_EACH (br, node, &all_bridges) {
584 bridge_add_ports(br, &br->wanted_ports);
585 shash_destroy(&br->wanted_ports);
588 reconfigure_system_stats(ovs_cfg);
590 /* Complete the configuration. */
591 sflow_bridge_number = 0;
592 collect_in_band_managers(ovs_cfg, &managers, &n_managers);
593 HMAP_FOR_EACH (br, node, &all_bridges) {
596 /* We need the datapath ID early to allow LACP ports to use it as the
597 * default system ID. */
598 bridge_configure_datapath_id(br);
600 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
603 port_configure(port);
605 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
606 iface_set_ofport(iface->cfg, iface->ofp_port);
607 /* Clear eventual previous errors */
608 ovsrec_interface_set_error(iface->cfg, NULL);
609 iface_configure_cfm(iface);
610 iface_configure_qos(iface, port->cfg->qos);
611 iface_set_mac(br, port, iface);
612 ofproto_port_set_bfd(br->ofproto, iface->ofp_port,
616 bridge_configure_mirrors(br);
617 bridge_configure_forward_bpdu(br);
618 bridge_configure_mac_table(br);
619 bridge_configure_mcast_snooping(br);
620 bridge_configure_remotes(br, managers, n_managers);
621 bridge_configure_netflow(br);
622 bridge_configure_sflow(br, &sflow_bridge_number);
623 bridge_configure_ipfix(br);
624 bridge_configure_stp(br);
625 bridge_configure_tables(br);
626 bridge_configure_dp_desc(br);
630 /* The ofproto-dpif provider does some final reconfiguration in its
631 * ->type_run() function. We have to call it before notifying the database
632 * client that reconfiguration is complete, otherwise there is a very
633 * narrow race window in which e.g. ofproto/trace will not recognize the
634 * new configuration (sometimes this causes unit test failures). */
638 /* Delete ofprotos which aren't configured or have the wrong type. Create
639 * ofprotos which don't exist but need to. */
641 bridge_delete_ofprotos(void)
648 /* Delete ofprotos with no bridge or with the wrong type. */
651 ofproto_enumerate_types(&types);
652 SSET_FOR_EACH (type, &types) {
655 ofproto_enumerate_names(type, &names);
656 SSET_FOR_EACH (name, &names) {
657 br = bridge_lookup(name);
658 if (!br || strcmp(type, br->type)) {
659 ofproto_delete(name, type);
663 sset_destroy(&names);
664 sset_destroy(&types);
668 add_ofp_port(ofp_port_t port, ofp_port_t *ports, size_t *n, size_t *allocated)
670 if (*n >= *allocated) {
671 ports = x2nrealloc(ports, allocated, sizeof *ports);
673 ports[(*n)++] = port;
678 bridge_delete_or_reconfigure_ports(struct bridge *br)
680 struct ofproto_port ofproto_port;
681 struct ofproto_port_dump dump;
683 struct sset ofproto_ports;
684 struct port *port, *port_next;
686 /* List of "ofp_port"s to delete. We make a list instead of deleting them
687 * right away because ofproto implementations aren't necessarily able to
688 * iterate through a changing list of ports in an entirely robust way. */
695 sset_init(&ofproto_ports);
697 /* Main task: Iterate over the ports in 'br->ofproto' and remove the ports
698 * that are not configured in the database. (This commonly happens when
699 * ports have been deleted, e.g. with "ovs-vsctl del-port".)
701 * Side tasks: Reconfigure the ports that are still in 'br'. Delete ports
702 * that have the wrong OpenFlow port number (and arrange to add them back
703 * with the correct OpenFlow port number). */
704 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
705 ofp_port_t requested_ofp_port;
708 sset_add(&ofproto_ports, ofproto_port.name);
710 iface = iface_lookup(br, ofproto_port.name);
712 /* No such iface is configured, so we should delete this
715 * As a corner case exception, keep the port if it's a bond fake
717 if (bridge_has_bond_fake_iface(br, ofproto_port.name)
718 && !strcmp(ofproto_port.type, "internal")) {
724 if (strcmp(ofproto_port.type, iface->type)
725 || netdev_set_config(iface->netdev, &iface->cfg->options, NULL)) {
726 /* The interface is the wrong type or can't be configured.
731 /* If the requested OpenFlow port for 'iface' changed, and it's not
732 * already the correct port, then we might want to temporarily delete
733 * this interface, so we can add it back again with the new OpenFlow
735 requested_ofp_port = iface_get_requested_ofp_port(iface->cfg);
736 if (iface->ofp_port != OFPP_LOCAL &&
737 requested_ofp_port != OFPP_NONE &&
738 requested_ofp_port != iface->ofp_port) {
739 ofp_port_t victim_request;
740 struct iface *victim;
742 /* Check for an existing OpenFlow port currently occupying
743 * 'iface''s requested port number. If there isn't one, then
744 * delete this port. Otherwise we need to consider further. */
745 victim = iface_from_ofp_port(br, requested_ofp_port);
750 /* 'victim' is a port currently using 'iface''s requested port
751 * number. Unless 'victim' specifically requested that port
752 * number, too, then we can delete both 'iface' and 'victim'
753 * temporarily. (We'll add both of them back again later with new
754 * OpenFlow port numbers.)
756 * If 'victim' did request port number 'requested_ofp_port', just
757 * like 'iface', then that's a configuration inconsistency that we
758 * can't resolve. We might as well let it keep its current port
760 victim_request = iface_get_requested_ofp_port(victim->cfg);
761 if (victim_request != requested_ofp_port) {
762 del = add_ofp_port(victim->ofp_port, del, &n, &allocated);
763 iface_destroy(victim);
772 iface_destroy(iface);
773 del = add_ofp_port(ofproto_port.ofp_port, del, &n, &allocated);
775 for (i = 0; i < n; i++) {
776 ofproto_port_del(br->ofproto, del[i]);
780 /* Iterate over this module's idea of interfaces in 'br'. Remove any ports
781 * that we didn't see when we iterated through the datapath, i.e. ports
782 * that disappeared underneath use. This is an unusual situation, but it
783 * can happen in some cases:
785 * - An admin runs a command like "ovs-dpctl del-port" (which is a bad
786 * idea but could happen).
788 * - The port represented a device that disappeared, e.g. a tuntap
789 * device destroyed via "tunctl -d", a physical Ethernet device
790 * whose module was just unloaded via "rmmod", or a virtual NIC for a
791 * VM whose VM was just terminated. */
792 HMAP_FOR_EACH_SAFE (port, port_next, hmap_node, &br->ports) {
793 struct iface *iface, *iface_next;
795 LIST_FOR_EACH_SAFE (iface, iface_next, port_elem, &port->ifaces) {
796 if (!sset_contains(&ofproto_ports, iface->name)) {
797 iface_destroy__(iface);
801 if (list_is_empty(&port->ifaces)) {
805 sset_destroy(&ofproto_ports);
809 bridge_add_ports__(struct bridge *br, const struct shash *wanted_ports,
810 bool with_requested_port)
812 struct shash_node *port_node;
814 SHASH_FOR_EACH (port_node, wanted_ports) {
815 const struct ovsrec_port *port_cfg = port_node->data;
818 for (i = 0; i < port_cfg->n_interfaces; i++) {
819 const struct ovsrec_interface *iface_cfg = port_cfg->interfaces[i];
820 ofp_port_t requested_ofp_port;
822 requested_ofp_port = iface_get_requested_ofp_port(iface_cfg);
823 if ((requested_ofp_port != OFPP_NONE) == with_requested_port) {
824 struct iface *iface = iface_lookup(br, iface_cfg->name);
827 iface_create(br, iface_cfg, port_cfg);
835 bridge_add_ports(struct bridge *br, const struct shash *wanted_ports)
837 /* First add interfaces that request a particular port number. */
838 bridge_add_ports__(br, wanted_ports, true);
840 /* Then add interfaces that want automatic port number assignment.
841 * We add these afterward to avoid accidentally taking a specifically
842 * requested port number. */
843 bridge_add_ports__(br, wanted_ports, false);
847 port_configure(struct port *port)
849 const struct ovsrec_port *cfg = port->cfg;
850 struct bond_settings bond_settings;
851 struct lacp_settings lacp_settings;
852 struct ofproto_bundle_settings s;
855 if (cfg->vlan_mode && !strcmp(cfg->vlan_mode, "splinter")) {
856 configure_splinter_port(port);
865 s.slaves = xmalloc(list_size(&port->ifaces) * sizeof *s.slaves);
866 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
867 s.slaves[s.n_slaves++] = iface->ofp_port;
872 if (cfg->tag && *cfg->tag >= 0 && *cfg->tag <= 4095) {
876 /* Get VLAN trunks. */
879 s.trunks = vlan_bitmap_from_array(cfg->trunks, cfg->n_trunks);
883 if (cfg->vlan_mode) {
884 if (!strcmp(cfg->vlan_mode, "access")) {
885 s.vlan_mode = PORT_VLAN_ACCESS;
886 } else if (!strcmp(cfg->vlan_mode, "trunk")) {
887 s.vlan_mode = PORT_VLAN_TRUNK;
888 } else if (!strcmp(cfg->vlan_mode, "native-tagged")) {
889 s.vlan_mode = PORT_VLAN_NATIVE_TAGGED;
890 } else if (!strcmp(cfg->vlan_mode, "native-untagged")) {
891 s.vlan_mode = PORT_VLAN_NATIVE_UNTAGGED;
893 /* This "can't happen" because ovsdb-server should prevent it. */
894 VLOG_WARN("port %s: unknown VLAN mode %s, falling "
895 "back to trunk mode", port->name, cfg->vlan_mode);
896 s.vlan_mode = PORT_VLAN_TRUNK;
900 s.vlan_mode = PORT_VLAN_ACCESS;
902 VLOG_WARN("port %s: ignoring trunks in favor of implicit vlan",
906 s.vlan_mode = PORT_VLAN_TRUNK;
909 s.use_priority_tags = smap_get_bool(&cfg->other_config, "priority-tags",
912 /* Get LACP settings. */
913 s.lacp = port_configure_lacp(port, &lacp_settings);
917 s.lacp_slaves = xmalloc(s.n_slaves * sizeof *s.lacp_slaves);
918 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
919 iface_configure_lacp(iface, &s.lacp_slaves[i++]);
922 s.lacp_slaves = NULL;
925 /* Get bond settings. */
926 if (s.n_slaves > 1) {
927 s.bond = &bond_settings;
928 port_configure_bond(port, &bond_settings);
931 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
932 netdev_set_miimon_interval(iface->netdev, 0);
937 ofproto_bundle_register(port->bridge->ofproto, port, &s);
945 /* Pick local port hardware address and datapath ID for 'br'. */
947 bridge_configure_datapath_id(struct bridge *br)
949 uint8_t ea[ETH_ADDR_LEN];
951 struct iface *local_iface;
952 struct iface *hw_addr_iface;
955 bridge_pick_local_hw_addr(br, ea, &hw_addr_iface);
956 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
958 int error = netdev_set_etheraddr(local_iface->netdev, ea);
960 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
961 VLOG_ERR_RL(&rl, "bridge %s: failed to set bridge "
962 "Ethernet address: %s",
963 br->name, ovs_strerror(error));
966 memcpy(br->ea, ea, ETH_ADDR_LEN);
968 dpid = bridge_pick_datapath_id(br, ea, hw_addr_iface);
969 if (dpid != ofproto_get_datapath_id(br->ofproto)) {
970 VLOG_INFO("bridge %s: using datapath ID %016"PRIx64, br->name, dpid);
971 ofproto_set_datapath_id(br->ofproto, dpid);
974 dpid_string = xasprintf("%016"PRIx64, dpid);
975 ovsrec_bridge_set_datapath_id(br->cfg, dpid_string);
979 /* Returns a bitmap of "enum ofputil_protocol"s that are allowed for use with
982 bridge_get_allowed_versions(struct bridge *br)
984 if (!br->cfg->n_protocols)
987 return ofputil_versions_from_strings(br->cfg->protocols,
988 br->cfg->n_protocols);
991 /* Set NetFlow configuration on 'br'. */
993 bridge_configure_netflow(struct bridge *br)
995 struct ovsrec_netflow *cfg = br->cfg->netflow;
996 struct netflow_options opts;
999 ofproto_set_netflow(br->ofproto, NULL);
1003 memset(&opts, 0, sizeof opts);
1005 /* Get default NetFlow configuration from datapath.
1006 * Apply overrides from 'cfg'. */
1007 ofproto_get_netflow_ids(br->ofproto, &opts.engine_type, &opts.engine_id);
1008 if (cfg->engine_type) {
1009 opts.engine_type = *cfg->engine_type;
1011 if (cfg->engine_id) {
1012 opts.engine_id = *cfg->engine_id;
1015 /* Configure active timeout interval. */
1016 opts.active_timeout = cfg->active_timeout;
1017 if (!opts.active_timeout) {
1018 opts.active_timeout = -1;
1019 } else if (opts.active_timeout < 0) {
1020 VLOG_WARN("bridge %s: active timeout interval set to negative "
1021 "value, using default instead (%d seconds)", br->name,
1022 NF_ACTIVE_TIMEOUT_DEFAULT);
1023 opts.active_timeout = -1;
1026 /* Add engine ID to interface number to disambiguate bridgs? */
1027 opts.add_id_to_iface = cfg->add_id_to_interface;
1028 if (opts.add_id_to_iface) {
1029 if (opts.engine_id > 0x7f) {
1030 VLOG_WARN("bridge %s: NetFlow port mangling may conflict with "
1031 "another vswitch, choose an engine id less than 128",
1034 if (hmap_count(&br->ports) > 508) {
1035 VLOG_WARN("bridge %s: NetFlow port mangling will conflict with "
1036 "another port when more than 508 ports are used",
1042 sset_init(&opts.collectors);
1043 sset_add_array(&opts.collectors, cfg->targets, cfg->n_targets);
1046 if (ofproto_set_netflow(br->ofproto, &opts)) {
1047 VLOG_ERR("bridge %s: problem setting netflow collectors", br->name);
1049 sset_destroy(&opts.collectors);
1052 /* Set sFlow configuration on 'br'. */
1054 bridge_configure_sflow(struct bridge *br, int *sflow_bridge_number)
1056 const struct ovsrec_sflow *cfg = br->cfg->sflow;
1057 struct ovsrec_controller **controllers;
1058 struct ofproto_sflow_options oso;
1059 size_t n_controllers;
1063 ofproto_set_sflow(br->ofproto, NULL);
1067 memset(&oso, 0, sizeof oso);
1069 sset_init(&oso.targets);
1070 sset_add_array(&oso.targets, cfg->targets, cfg->n_targets);
1072 oso.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
1073 if (cfg->sampling) {
1074 oso.sampling_rate = *cfg->sampling;
1077 oso.polling_interval = SFL_DEFAULT_POLLING_INTERVAL;
1079 oso.polling_interval = *cfg->polling;
1082 oso.header_len = SFL_DEFAULT_HEADER_SIZE;
1084 oso.header_len = *cfg->header;
1087 oso.sub_id = (*sflow_bridge_number)++;
1088 oso.agent_device = cfg->agent;
1090 oso.control_ip = NULL;
1091 n_controllers = bridge_get_controllers(br, &controllers);
1092 for (i = 0; i < n_controllers; i++) {
1093 if (controllers[i]->local_ip) {
1094 oso.control_ip = controllers[i]->local_ip;
1098 ofproto_set_sflow(br->ofproto, &oso);
1100 sset_destroy(&oso.targets);
1103 /* Returns whether a IPFIX row is valid. */
1105 ovsrec_ipfix_is_valid(const struct ovsrec_ipfix *ipfix)
1107 return ipfix && ipfix->n_targets > 0;
1110 /* Returns whether a Flow_Sample_Collector_Set row is valid. */
1112 ovsrec_fscs_is_valid(const struct ovsrec_flow_sample_collector_set *fscs,
1113 const struct bridge *br)
1115 return ovsrec_ipfix_is_valid(fscs->ipfix) && fscs->bridge == br->cfg;
1118 /* Set IPFIX configuration on 'br'. */
1120 bridge_configure_ipfix(struct bridge *br)
1122 const struct ovsrec_ipfix *be_cfg = br->cfg->ipfix;
1123 bool valid_be_cfg = ovsrec_ipfix_is_valid(be_cfg);
1124 const struct ovsrec_flow_sample_collector_set *fe_cfg;
1125 struct ofproto_ipfix_bridge_exporter_options be_opts;
1126 struct ofproto_ipfix_flow_exporter_options *fe_opts = NULL;
1127 size_t n_fe_opts = 0;
1129 OVSREC_FLOW_SAMPLE_COLLECTOR_SET_FOR_EACH(fe_cfg, idl) {
1130 if (ovsrec_fscs_is_valid(fe_cfg, br)) {
1135 if (!valid_be_cfg && n_fe_opts == 0) {
1136 ofproto_set_ipfix(br->ofproto, NULL, NULL, 0);
1141 memset(&be_opts, 0, sizeof be_opts);
1143 sset_init(&be_opts.targets);
1144 sset_add_array(&be_opts.targets, be_cfg->targets, be_cfg->n_targets);
1146 if (be_cfg->sampling) {
1147 be_opts.sampling_rate = *be_cfg->sampling;
1149 be_opts.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
1151 if (be_cfg->obs_domain_id) {
1152 be_opts.obs_domain_id = *be_cfg->obs_domain_id;
1154 if (be_cfg->obs_point_id) {
1155 be_opts.obs_point_id = *be_cfg->obs_point_id;
1157 if (be_cfg->cache_active_timeout) {
1158 be_opts.cache_active_timeout = *be_cfg->cache_active_timeout;
1160 if (be_cfg->cache_max_flows) {
1161 be_opts.cache_max_flows = *be_cfg->cache_max_flows;
1165 if (n_fe_opts > 0) {
1166 struct ofproto_ipfix_flow_exporter_options *opts;
1167 fe_opts = xcalloc(n_fe_opts, sizeof *fe_opts);
1169 OVSREC_FLOW_SAMPLE_COLLECTOR_SET_FOR_EACH(fe_cfg, idl) {
1170 if (ovsrec_fscs_is_valid(fe_cfg, br)) {
1171 opts->collector_set_id = fe_cfg->id;
1172 sset_init(&opts->targets);
1173 sset_add_array(&opts->targets, fe_cfg->ipfix->targets,
1174 fe_cfg->ipfix->n_targets);
1175 opts->cache_active_timeout = fe_cfg->ipfix->cache_active_timeout
1176 ? *fe_cfg->ipfix->cache_active_timeout : 0;
1177 opts->cache_max_flows = fe_cfg->ipfix->cache_max_flows
1178 ? *fe_cfg->ipfix->cache_max_flows : 0;
1184 ofproto_set_ipfix(br->ofproto, valid_be_cfg ? &be_opts : NULL, fe_opts,
1188 sset_destroy(&be_opts.targets);
1191 if (n_fe_opts > 0) {
1192 struct ofproto_ipfix_flow_exporter_options *opts = fe_opts;
1194 for (i = 0; i < n_fe_opts; i++) {
1195 sset_destroy(&opts->targets);
1203 port_configure_stp(const struct ofproto *ofproto, struct port *port,
1204 struct ofproto_port_stp_settings *port_s,
1205 int *port_num_counter, unsigned long *port_num_bitmap)
1207 const char *config_str;
1208 struct iface *iface;
1210 if (!smap_get_bool(&port->cfg->other_config, "stp-enable", true)) {
1211 port_s->enable = false;
1214 port_s->enable = true;
1217 /* STP over bonds is not supported. */
1218 if (!list_is_singleton(&port->ifaces)) {
1219 VLOG_ERR("port %s: cannot enable STP on bonds, disabling",
1221 port_s->enable = false;
1225 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
1227 /* Internal ports shouldn't participate in spanning tree, so
1229 if (!strcmp(iface->type, "internal")) {
1230 VLOG_DBG("port %s: disable STP on internal ports", port->name);
1231 port_s->enable = false;
1235 /* STP on mirror output ports is not supported. */
1236 if (ofproto_is_mirror_output_bundle(ofproto, port)) {
1237 VLOG_DBG("port %s: disable STP on mirror ports", port->name);
1238 port_s->enable = false;
1242 config_str = smap_get(&port->cfg->other_config, "stp-port-num");
1244 unsigned long int port_num = strtoul(config_str, NULL, 0);
1245 int port_idx = port_num - 1;
1247 if (port_num < 1 || port_num > STP_MAX_PORTS) {
1248 VLOG_ERR("port %s: invalid stp-port-num", port->name);
1249 port_s->enable = false;
1253 if (bitmap_is_set(port_num_bitmap, port_idx)) {
1254 VLOG_ERR("port %s: duplicate stp-port-num %lu, disabling",
1255 port->name, port_num);
1256 port_s->enable = false;
1259 bitmap_set1(port_num_bitmap, port_idx);
1260 port_s->port_num = port_idx;
1262 if (*port_num_counter >= STP_MAX_PORTS) {
1263 VLOG_ERR("port %s: too many STP ports, disabling", port->name);
1264 port_s->enable = false;
1268 port_s->port_num = (*port_num_counter)++;
1271 config_str = smap_get(&port->cfg->other_config, "stp-path-cost");
1273 port_s->path_cost = strtoul(config_str, NULL, 10);
1275 enum netdev_features current;
1278 netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
1279 mbps = netdev_features_to_bps(current, 100 * 1000 * 1000) / 1000000;
1280 port_s->path_cost = stp_convert_speed_to_cost(mbps);
1283 config_str = smap_get(&port->cfg->other_config, "stp-port-priority");
1285 port_s->priority = strtoul(config_str, NULL, 0);
1287 port_s->priority = STP_DEFAULT_PORT_PRIORITY;
1291 /* Set spanning tree configuration on 'br'. */
1293 bridge_configure_stp(struct bridge *br)
1295 if (!br->cfg->stp_enable) {
1296 ofproto_set_stp(br->ofproto, NULL);
1298 struct ofproto_stp_settings br_s;
1299 const char *config_str;
1301 int port_num_counter;
1302 unsigned long *port_num_bitmap;
1304 config_str = smap_get(&br->cfg->other_config, "stp-system-id");
1306 uint8_t ea[ETH_ADDR_LEN];
1308 if (eth_addr_from_string(config_str, ea)) {
1309 br_s.system_id = eth_addr_to_uint64(ea);
1311 br_s.system_id = eth_addr_to_uint64(br->ea);
1312 VLOG_ERR("bridge %s: invalid stp-system-id, defaulting "
1313 "to "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(br->ea));
1316 br_s.system_id = eth_addr_to_uint64(br->ea);
1319 config_str = smap_get(&br->cfg->other_config, "stp-priority");
1321 br_s.priority = strtoul(config_str, NULL, 0);
1323 br_s.priority = STP_DEFAULT_BRIDGE_PRIORITY;
1326 config_str = smap_get(&br->cfg->other_config, "stp-hello-time");
1328 br_s.hello_time = strtoul(config_str, NULL, 10) * 1000;
1330 br_s.hello_time = STP_DEFAULT_HELLO_TIME;
1333 config_str = smap_get(&br->cfg->other_config, "stp-max-age");
1335 br_s.max_age = strtoul(config_str, NULL, 10) * 1000;
1337 br_s.max_age = STP_DEFAULT_MAX_AGE;
1340 config_str = smap_get(&br->cfg->other_config, "stp-forward-delay");
1342 br_s.fwd_delay = strtoul(config_str, NULL, 10) * 1000;
1344 br_s.fwd_delay = STP_DEFAULT_FWD_DELAY;
1347 /* Configure STP on the bridge. */
1348 if (ofproto_set_stp(br->ofproto, &br_s)) {
1349 VLOG_ERR("bridge %s: could not enable STP", br->name);
1353 /* Users must either set the port number with the "stp-port-num"
1354 * configuration on all ports or none. If manual configuration
1355 * is not done, then we allocate them sequentially. */
1356 port_num_counter = 0;
1357 port_num_bitmap = bitmap_allocate(STP_MAX_PORTS);
1358 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1359 struct ofproto_port_stp_settings port_s;
1360 struct iface *iface;
1362 port_configure_stp(br->ofproto, port, &port_s,
1363 &port_num_counter, port_num_bitmap);
1365 /* As bonds are not supported, just apply configuration to
1366 * all interfaces. */
1367 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1368 if (ofproto_port_set_stp(br->ofproto, iface->ofp_port,
1370 VLOG_ERR("port %s: could not enable STP", port->name);
1376 if (bitmap_scan(port_num_bitmap, 1, 0, STP_MAX_PORTS) != STP_MAX_PORTS
1377 && port_num_counter) {
1378 VLOG_ERR("bridge %s: must manually configure all STP port "
1379 "IDs or none, disabling", br->name);
1380 ofproto_set_stp(br->ofproto, NULL);
1382 bitmap_free(port_num_bitmap);
1387 bridge_has_bond_fake_iface(const struct bridge *br, const char *name)
1389 const struct port *port = port_lookup(br, name);
1390 return port && port_is_bond_fake_iface(port);
1394 port_is_bond_fake_iface(const struct port *port)
1396 return port->cfg->bond_fake_iface && !list_is_short(&port->ifaces);
1400 add_del_bridges(const struct ovsrec_open_vswitch *cfg)
1402 struct bridge *br, *next;
1403 struct shash new_br;
1406 /* Collect new bridges' names and types. */
1407 shash_init(&new_br);
1408 for (i = 0; i < cfg->n_bridges; i++) {
1409 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1410 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
1412 if (strchr(br_cfg->name, '/')) {
1413 /* Prevent remote ovsdb-server users from accessing arbitrary
1414 * directories, e.g. consider a bridge named "../../../etc/". */
1415 VLOG_WARN_RL(&rl, "ignoring bridge with invalid name \"%s\"",
1417 } else if (!shash_add_once(&new_br, br_cfg->name, br_cfg)) {
1418 VLOG_WARN_RL(&rl, "bridge %s specified twice", br_cfg->name);
1422 /* Get rid of deleted bridges or those whose types have changed.
1423 * Update 'cfg' of bridges that still exist. */
1424 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
1425 br->cfg = shash_find_data(&new_br, br->name);
1426 if (!br->cfg || strcmp(br->type, ofproto_normalize_type(
1427 br->cfg->datapath_type))) {
1432 /* Add new bridges. */
1433 for (i = 0; i < cfg->n_bridges; i++) {
1434 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
1435 struct bridge *br = bridge_lookup(br_cfg->name);
1437 bridge_create(br_cfg);
1441 shash_destroy(&new_br);
1444 /* Configures 'netdev' based on the "options" column in 'iface_cfg'.
1445 * Returns 0 if successful, otherwise a positive errno value. */
1447 iface_set_netdev_config(const struct ovsrec_interface *iface_cfg,
1448 struct netdev *netdev, char **errp)
1450 return netdev_set_config(netdev, &iface_cfg->options, errp);
1453 /* Opens a network device for 'if_cfg' and configures it. Adds the network
1454 * device to br->ofproto and stores the OpenFlow port number in '*ofp_portp'.
1456 * If successful, returns 0 and stores the network device in '*netdevp'. On
1457 * failure, returns a positive errno value and stores NULL in '*netdevp'. */
1459 iface_do_create(const struct bridge *br,
1460 const struct ovsrec_interface *iface_cfg,
1461 const struct ovsrec_port *port_cfg,
1462 ofp_port_t *ofp_portp, struct netdev **netdevp,
1465 struct netdev *netdev = NULL;
1468 if (netdev_is_reserved_name(iface_cfg->name)) {
1469 VLOG_WARN("could not create interface %s, name is reserved",
1475 error = netdev_open(iface_cfg->name,
1476 iface_get_type(iface_cfg, br->cfg), &netdev);
1478 VLOG_WARN_BUF(errp, "could not open network device %s (%s)",
1479 iface_cfg->name, ovs_strerror(error));
1483 error = iface_set_netdev_config(iface_cfg, netdev, errp);
1488 *ofp_portp = iface_pick_ofport(iface_cfg);
1489 error = ofproto_port_add(br->ofproto, netdev, ofp_portp);
1494 VLOG_INFO("bridge %s: added interface %s on port %d",
1495 br->name, iface_cfg->name, *ofp_portp);
1497 if (port_cfg->vlan_mode && !strcmp(port_cfg->vlan_mode, "splinter")) {
1498 netdev_turn_flags_on(netdev, NETDEV_UP, NULL);
1506 netdev_close(netdev);
1510 /* Creates a new iface on 'br' based on 'if_cfg'. The new iface has OpenFlow
1511 * port number 'ofp_port'. If ofp_port is OFPP_NONE, an OpenFlow port is
1512 * automatically allocated for the iface. Takes ownership of and
1513 * deallocates 'if_cfg'.
1515 * Return true if an iface is successfully created, false otherwise. */
1517 iface_create(struct bridge *br, const struct ovsrec_interface *iface_cfg,
1518 const struct ovsrec_port *port_cfg)
1520 struct netdev *netdev;
1521 struct iface *iface;
1522 ofp_port_t ofp_port;
1527 /* Do the bits that can fail up front. */
1528 ovs_assert(!iface_lookup(br, iface_cfg->name));
1529 error = iface_do_create(br, iface_cfg, port_cfg, &ofp_port, &netdev, &errp);
1531 iface_clear_db_record(iface_cfg, errp);
1536 /* Get or create the port structure. */
1537 port = port_lookup(br, port_cfg->name);
1539 port = port_create(br, port_cfg);
1542 /* Create the iface structure. */
1543 iface = xzalloc(sizeof *iface);
1544 list_push_back(&port->ifaces, &iface->port_elem);
1545 hmap_insert(&br->iface_by_name, &iface->name_node,
1546 hash_string(iface_cfg->name, 0));
1548 iface->name = xstrdup(iface_cfg->name);
1549 iface->ofp_port = ofp_port;
1550 iface->netdev = netdev;
1551 iface->type = iface_get_type(iface_cfg, br->cfg);
1552 iface->cfg = iface_cfg;
1553 hmap_insert(&br->ifaces, &iface->ofp_port_node,
1554 hash_ofp_port(ofp_port));
1556 /* Populate initial status in database. */
1557 iface_refresh_stats(iface);
1558 iface_refresh_netdev_status(iface);
1560 /* Add bond fake iface if necessary. */
1561 if (port_is_bond_fake_iface(port)) {
1562 struct ofproto_port ofproto_port;
1564 if (ofproto_port_query_by_name(br->ofproto, port->name,
1566 struct netdev *netdev;
1569 error = netdev_open(port->name, "internal", &netdev);
1571 ofp_port_t fake_ofp_port = OFPP_NONE;
1572 ofproto_port_add(br->ofproto, netdev, &fake_ofp_port);
1573 netdev_close(netdev);
1575 VLOG_WARN("could not open network device %s (%s)",
1576 port->name, ovs_strerror(error));
1579 /* Already exists, nothing to do. */
1580 ofproto_port_destroy(&ofproto_port);
1587 /* Set forward BPDU option. */
1589 bridge_configure_forward_bpdu(struct bridge *br)
1591 ofproto_set_forward_bpdu(br->ofproto,
1592 smap_get_bool(&br->cfg->other_config,
1597 /* Set MAC learning table configuration for 'br'. */
1599 bridge_configure_mac_table(struct bridge *br)
1601 const char *idle_time_str;
1604 const char *mac_table_size_str;
1607 idle_time_str = smap_get(&br->cfg->other_config, "mac-aging-time");
1608 idle_time = (idle_time_str && atoi(idle_time_str)
1609 ? atoi(idle_time_str)
1610 : MAC_ENTRY_DEFAULT_IDLE_TIME);
1612 mac_table_size_str = smap_get(&br->cfg->other_config, "mac-table-size");
1613 mac_table_size = (mac_table_size_str && atoi(mac_table_size_str)
1614 ? atoi(mac_table_size_str)
1617 ofproto_set_mac_table_config(br->ofproto, idle_time, mac_table_size);
1620 /* Set multicast snooping table configuration for 'br'. */
1622 bridge_configure_mcast_snooping(struct bridge *br)
1624 if (!br->cfg->mcast_snooping_enable) {
1625 ofproto_set_mcast_snooping(br->ofproto, NULL);
1628 struct ofproto_mcast_snooping_settings br_s;
1629 const char *idle_time_str;
1630 const char *max_entries_str;
1632 idle_time_str = smap_get(&br->cfg->other_config,
1633 "mcast-snooping-aging-time");
1634 br_s.idle_time = (idle_time_str && atoi(idle_time_str)
1635 ? atoi(idle_time_str)
1636 : MCAST_ENTRY_DEFAULT_IDLE_TIME);
1638 max_entries_str = smap_get(&br->cfg->other_config,
1639 "mcast-snooping-table-size");
1640 br_s.max_entries = (max_entries_str && atoi(max_entries_str)
1641 ? atoi(max_entries_str)
1642 : MCAST_DEFAULT_MAX_ENTRIES);
1644 br_s.flood_unreg = !smap_get_bool(&br->cfg->other_config,
1645 "mcast-snooping-disable-flood-unregistered",
1648 /* Configure multicast snooping on the bridge */
1649 if (ofproto_set_mcast_snooping(br->ofproto, &br_s)) {
1650 VLOG_ERR("bridge %s: could not enable multicast snooping",
1655 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1656 bool flood = smap_get_bool(&port->cfg->other_config,
1657 "mcast-snooping-flood", false);
1658 if (ofproto_port_set_mcast_snooping(br->ofproto, port, flood)) {
1659 VLOG_ERR("port %s: could not configure mcast snooping",
1667 find_local_hw_addr(const struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
1668 const struct port *fake_br, struct iface **hw_addr_iface)
1670 struct hmapx mirror_output_ports;
1672 bool found_addr = false;
1676 /* Mirror output ports don't participate in picking the local hardware
1677 * address. ofproto can't help us find out whether a given port is a
1678 * mirror output because we haven't configured mirrors yet, so we need to
1679 * accumulate them ourselves. */
1680 hmapx_init(&mirror_output_ports);
1681 for (i = 0; i < br->cfg->n_mirrors; i++) {
1682 struct ovsrec_mirror *m = br->cfg->mirrors[i];
1683 if (m->output_port) {
1684 hmapx_add(&mirror_output_ports, m->output_port);
1688 /* Otherwise choose the minimum non-local MAC address among all of the
1690 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1691 uint8_t iface_ea[ETH_ADDR_LEN];
1692 struct iface *candidate;
1693 struct iface *iface;
1695 /* Mirror output ports don't participate. */
1696 if (hmapx_contains(&mirror_output_ports, port->cfg)) {
1700 /* Choose the MAC address to represent the port. */
1702 if (port->cfg->mac && eth_addr_from_string(port->cfg->mac, iface_ea)) {
1703 /* Find the interface with this Ethernet address (if any) so that
1704 * we can provide the correct devname to the caller. */
1705 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1706 uint8_t candidate_ea[ETH_ADDR_LEN];
1707 if (!netdev_get_etheraddr(candidate->netdev, candidate_ea)
1708 && eth_addr_equals(iface_ea, candidate_ea)) {
1713 /* Choose the interface whose MAC address will represent the port.
1714 * The Linux kernel bonding code always chooses the MAC address of
1715 * the first slave added to a bond, and the Fedora networking
1716 * scripts always add slaves to a bond in alphabetical order, so
1717 * for compatibility we choose the interface with the name that is
1718 * first in alphabetical order. */
1719 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1720 if (!iface || strcmp(candidate->name, iface->name) < 0) {
1725 /* The local port doesn't count (since we're trying to choose its
1726 * MAC address anyway). */
1727 if (iface->ofp_port == OFPP_LOCAL) {
1731 /* For fake bridges we only choose from ports with the same tag */
1732 if (fake_br && fake_br->cfg && fake_br->cfg->tag) {
1733 if (!port->cfg->tag) {
1736 if (*port->cfg->tag != *fake_br->cfg->tag) {
1742 error = netdev_get_etheraddr(iface->netdev, iface_ea);
1748 /* Compare against our current choice. */
1749 if (!eth_addr_is_multicast(iface_ea) &&
1750 !eth_addr_is_local(iface_ea) &&
1751 !eth_addr_is_reserved(iface_ea) &&
1752 !eth_addr_is_zero(iface_ea) &&
1753 (!found_addr || eth_addr_compare_3way(iface_ea, ea) < 0))
1755 memcpy(ea, iface_ea, ETH_ADDR_LEN);
1756 *hw_addr_iface = iface;
1762 memcpy(ea, br->default_ea, ETH_ADDR_LEN);
1763 *hw_addr_iface = NULL;
1766 hmapx_destroy(&mirror_output_ports);
1770 bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
1771 struct iface **hw_addr_iface)
1774 *hw_addr_iface = NULL;
1776 /* Did the user request a particular MAC? */
1777 hwaddr = smap_get(&br->cfg->other_config, "hwaddr");
1778 if (hwaddr && eth_addr_from_string(hwaddr, ea)) {
1779 if (eth_addr_is_multicast(ea)) {
1780 VLOG_ERR("bridge %s: cannot set MAC address to multicast "
1781 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1782 } else if (eth_addr_is_zero(ea)) {
1783 VLOG_ERR("bridge %s: cannot set MAC address to zero", br->name);
1789 /* Find a local hw address */
1790 find_local_hw_addr(br, ea, NULL, hw_addr_iface);
1793 /* Choose and returns the datapath ID for bridge 'br' given that the bridge
1794 * Ethernet address is 'bridge_ea'. If 'bridge_ea' is the Ethernet address of
1795 * an interface on 'br', then that interface must be passed in as
1796 * 'hw_addr_iface'; if 'bridge_ea' was derived some other way, then
1797 * 'hw_addr_iface' must be passed in as a null pointer. */
1799 bridge_pick_datapath_id(struct bridge *br,
1800 const uint8_t bridge_ea[ETH_ADDR_LEN],
1801 struct iface *hw_addr_iface)
1804 * The procedure for choosing a bridge MAC address will, in the most
1805 * ordinary case, also choose a unique MAC that we can use as a datapath
1806 * ID. In some special cases, though, multiple bridges will end up with
1807 * the same MAC address. This is OK for the bridges, but it will confuse
1808 * the OpenFlow controller, because each datapath needs a unique datapath
1811 * Datapath IDs must be unique. It is also very desirable that they be
1812 * stable from one run to the next, so that policy set on a datapath
1815 const char *datapath_id;
1818 datapath_id = smap_get(&br->cfg->other_config, "datapath-id");
1819 if (datapath_id && dpid_from_string(datapath_id, &dpid)) {
1823 if (!hw_addr_iface) {
1825 * A purely internal bridge, that is, one that has no non-virtual
1826 * network devices on it at all, is difficult because it has no
1827 * natural unique identifier at all.
1829 * When the host is a XenServer, we handle this case by hashing the
1830 * host's UUID with the name of the bridge. Names of bridges are
1831 * persistent across XenServer reboots, although they can be reused if
1832 * an internal network is destroyed and then a new one is later
1833 * created, so this is fairly effective.
1835 * When the host is not a XenServer, we punt by using a random MAC
1836 * address on each run.
1838 const char *host_uuid = xenserver_get_host_uuid();
1840 char *combined = xasprintf("%s,%s", host_uuid, br->name);
1841 dpid = dpid_from_hash(combined, strlen(combined));
1847 return eth_addr_to_uint64(bridge_ea);
1851 dpid_from_hash(const void *data, size_t n)
1853 uint8_t hash[SHA1_DIGEST_SIZE];
1855 BUILD_ASSERT_DECL(sizeof hash >= ETH_ADDR_LEN);
1856 sha1_bytes(data, n, hash);
1857 eth_addr_mark_random(hash);
1858 return eth_addr_to_uint64(hash);
1862 iface_refresh_netdev_status(struct iface *iface)
1866 enum netdev_features current;
1867 enum netdev_flags flags;
1868 const char *link_state;
1869 uint8_t mac[ETH_ADDR_LEN];
1870 int64_t bps, mtu_64, ifindex64, link_resets;
1873 if (iface_is_synthetic(iface)) {
1877 if (iface->change_seq == netdev_get_change_seq(iface->netdev)
1878 && !status_txn_try_again) {
1882 iface->change_seq = netdev_get_change_seq(iface->netdev);
1886 if (!netdev_get_status(iface->netdev, &smap)) {
1887 ovsrec_interface_set_status(iface->cfg, &smap);
1889 ovsrec_interface_set_status(iface->cfg, NULL);
1892 smap_destroy(&smap);
1894 error = netdev_get_flags(iface->netdev, &flags);
1896 const char *state = flags & NETDEV_UP ? "up" : "down";
1898 ovsrec_interface_set_admin_state(iface->cfg, state);
1900 ovsrec_interface_set_admin_state(iface->cfg, NULL);
1903 link_state = netdev_get_carrier(iface->netdev) ? "up" : "down";
1904 ovsrec_interface_set_link_state(iface->cfg, link_state);
1906 link_resets = netdev_get_carrier_resets(iface->netdev);
1907 ovsrec_interface_set_link_resets(iface->cfg, &link_resets, 1);
1909 error = netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
1910 bps = !error ? netdev_features_to_bps(current, 0) : 0;
1912 ovsrec_interface_set_duplex(iface->cfg,
1913 netdev_features_is_full_duplex(current)
1915 ovsrec_interface_set_link_speed(iface->cfg, &bps, 1);
1917 ovsrec_interface_set_duplex(iface->cfg, NULL);
1918 ovsrec_interface_set_link_speed(iface->cfg, NULL, 0);
1921 error = netdev_get_mtu(iface->netdev, &mtu);
1924 ovsrec_interface_set_mtu(iface->cfg, &mtu_64, 1);
1926 ovsrec_interface_set_mtu(iface->cfg, NULL, 0);
1929 error = netdev_get_etheraddr(iface->netdev, mac);
1931 char mac_string[32];
1933 sprintf(mac_string, ETH_ADDR_FMT, ETH_ADDR_ARGS(mac));
1934 ovsrec_interface_set_mac_in_use(iface->cfg, mac_string);
1936 ovsrec_interface_set_mac_in_use(iface->cfg, NULL);
1939 /* The netdev may return a negative number (such as -EOPNOTSUPP)
1940 * if there is no valid ifindex number. */
1941 ifindex64 = netdev_get_ifindex(iface->netdev);
1942 if (ifindex64 < 0) {
1945 ovsrec_interface_set_ifindex(iface->cfg, &ifindex64, 1);
1949 iface_refresh_ofproto_status(struct iface *iface)
1953 if (iface_is_synthetic(iface)) {
1957 current = ofproto_port_is_lacp_current(iface->port->bridge->ofproto,
1961 ovsrec_interface_set_lacp_current(iface->cfg, &bl, 1);
1963 ovsrec_interface_set_lacp_current(iface->cfg, NULL, 0);
1966 if (ofproto_port_cfm_status_changed(iface->port->bridge->ofproto,
1968 || status_txn_try_again) {
1969 iface_refresh_cfm_stats(iface);
1972 if (ofproto_port_bfd_status_changed(iface->port->bridge->ofproto,
1974 || status_txn_try_again) {
1978 ofproto_port_get_bfd_status(iface->port->bridge->ofproto,
1979 iface->ofp_port, &smap);
1980 ovsrec_interface_set_bfd_status(iface->cfg, &smap);
1981 smap_destroy(&smap);
1985 /* Writes 'iface''s CFM statistics to the database. 'iface' must not be
1988 iface_refresh_cfm_stats(struct iface *iface)
1990 const struct ovsrec_interface *cfg = iface->cfg;
1991 struct cfm_status status;
1994 error = ofproto_port_get_cfm_status(iface->port->bridge->ofproto,
1995 iface->ofp_port, &status);
1997 ovsrec_interface_set_cfm_fault(cfg, NULL, 0);
1998 ovsrec_interface_set_cfm_fault_status(cfg, NULL, 0);
1999 ovsrec_interface_set_cfm_remote_opstate(cfg, NULL);
2000 ovsrec_interface_set_cfm_flap_count(cfg, NULL, 0);
2001 ovsrec_interface_set_cfm_health(cfg, NULL, 0);
2002 ovsrec_interface_set_cfm_remote_mpids(cfg, NULL, 0);
2004 const char *reasons[CFM_FAULT_N_REASONS];
2005 int64_t cfm_health = status.health;
2006 int64_t cfm_flap_count = status.flap_count;
2007 bool faulted = status.faults != 0;
2010 ovsrec_interface_set_cfm_fault(cfg, &faulted, 1);
2013 for (i = 0; i < CFM_FAULT_N_REASONS; i++) {
2014 int reason = 1 << i;
2015 if (status.faults & reason) {
2016 reasons[j++] = cfm_fault_reason_to_str(reason);
2019 ovsrec_interface_set_cfm_fault_status(cfg, (char **) reasons, j);
2021 ovsrec_interface_set_cfm_flap_count(cfg, &cfm_flap_count, 1);
2023 if (status.remote_opstate >= 0) {
2024 const char *remote_opstate = status.remote_opstate ? "up" : "down";
2025 ovsrec_interface_set_cfm_remote_opstate(cfg, remote_opstate);
2027 ovsrec_interface_set_cfm_remote_opstate(cfg, NULL);
2030 ovsrec_interface_set_cfm_remote_mpids(cfg,
2031 (const int64_t *)status.rmps,
2033 if (cfm_health >= 0) {
2034 ovsrec_interface_set_cfm_health(cfg, &cfm_health, 1);
2036 ovsrec_interface_set_cfm_health(cfg, NULL, 0);
2044 iface_refresh_stats(struct iface *iface)
2046 #define IFACE_STATS \
2047 IFACE_STAT(rx_packets, "rx_packets") \
2048 IFACE_STAT(tx_packets, "tx_packets") \
2049 IFACE_STAT(rx_bytes, "rx_bytes") \
2050 IFACE_STAT(tx_bytes, "tx_bytes") \
2051 IFACE_STAT(rx_dropped, "rx_dropped") \
2052 IFACE_STAT(tx_dropped, "tx_dropped") \
2053 IFACE_STAT(rx_errors, "rx_errors") \
2054 IFACE_STAT(tx_errors, "tx_errors") \
2055 IFACE_STAT(rx_frame_errors, "rx_frame_err") \
2056 IFACE_STAT(rx_over_errors, "rx_over_err") \
2057 IFACE_STAT(rx_crc_errors, "rx_crc_err") \
2058 IFACE_STAT(collisions, "collisions")
2060 #define IFACE_STAT(MEMBER, NAME) + 1
2061 enum { N_IFACE_STATS = IFACE_STATS };
2063 int64_t values[N_IFACE_STATS];
2064 char *keys[N_IFACE_STATS];
2067 struct netdev_stats stats;
2069 if (iface_is_synthetic(iface)) {
2073 /* Intentionally ignore return value, since errors will set 'stats' to
2074 * all-1s, and we will deal with that correctly below. */
2075 netdev_get_stats(iface->netdev, &stats);
2077 /* Copy statistics into keys[] and values[]. */
2079 #define IFACE_STAT(MEMBER, NAME) \
2080 if (stats.MEMBER != UINT64_MAX) { \
2082 values[n] = stats.MEMBER; \
2087 ovs_assert(n <= N_IFACE_STATS);
2089 ovsrec_interface_set_statistics(iface->cfg, keys, values, n);
2094 br_refresh_stp_status(struct bridge *br)
2096 struct smap smap = SMAP_INITIALIZER(&smap);
2097 struct ofproto *ofproto = br->ofproto;
2098 struct ofproto_stp_status status;
2100 if (ofproto_get_stp_status(ofproto, &status)) {
2104 if (!status.enabled) {
2105 ovsrec_bridge_set_status(br->cfg, NULL);
2109 smap_add_format(&smap, "stp_bridge_id", STP_ID_FMT,
2110 STP_ID_ARGS(status.bridge_id));
2111 smap_add_format(&smap, "stp_designated_root", STP_ID_FMT,
2112 STP_ID_ARGS(status.designated_root));
2113 smap_add_format(&smap, "stp_root_path_cost", "%d", status.root_path_cost);
2115 ovsrec_bridge_set_status(br->cfg, &smap);
2116 smap_destroy(&smap);
2120 port_refresh_stp_status(struct port *port)
2122 struct ofproto *ofproto = port->bridge->ofproto;
2123 struct iface *iface;
2124 struct ofproto_port_stp_status status;
2127 if (port_is_synthetic(port)) {
2131 /* STP doesn't currently support bonds. */
2132 if (!list_is_singleton(&port->ifaces)) {
2133 ovsrec_port_set_status(port->cfg, NULL);
2137 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
2138 if (ofproto_port_get_stp_status(ofproto, iface->ofp_port, &status)) {
2142 if (!status.enabled) {
2143 ovsrec_port_set_status(port->cfg, NULL);
2147 /* Set Status column. */
2149 smap_add_format(&smap, "stp_port_id", STP_PORT_ID_FMT, status.port_id);
2150 smap_add(&smap, "stp_state", stp_state_name(status.state));
2151 smap_add_format(&smap, "stp_sec_in_state", "%u", status.sec_in_state);
2152 smap_add(&smap, "stp_role", stp_role_name(status.role));
2153 ovsrec_port_set_status(port->cfg, &smap);
2154 smap_destroy(&smap);
2158 port_refresh_stp_stats(struct port *port)
2160 struct ofproto *ofproto = port->bridge->ofproto;
2161 struct iface *iface;
2162 struct ofproto_port_stp_stats stats;
2164 int64_t int_values[3];
2166 if (port_is_synthetic(port)) {
2170 /* STP doesn't currently support bonds. */
2171 if (!list_is_singleton(&port->ifaces)) {
2175 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
2176 if (ofproto_port_get_stp_stats(ofproto, iface->ofp_port, &stats)) {
2180 if (!stats.enabled) {
2181 ovsrec_port_set_statistics(port->cfg, NULL, NULL, 0);
2185 /* Set Statistics column. */
2186 keys[0] = "stp_tx_count";
2187 int_values[0] = stats.tx_count;
2188 keys[1] = "stp_rx_count";
2189 int_values[1] = stats.rx_count;
2190 keys[2] = "stp_error_count";
2191 int_values[2] = stats.error_count;
2193 ovsrec_port_set_statistics(port->cfg, keys, int_values,
2194 ARRAY_SIZE(int_values));
2198 enable_system_stats(const struct ovsrec_open_vswitch *cfg)
2200 return smap_get_bool(&cfg->other_config, "enable-statistics", false);
2204 reconfigure_system_stats(const struct ovsrec_open_vswitch *cfg)
2206 bool enable = enable_system_stats(cfg);
2208 system_stats_enable(enable);
2210 ovsrec_open_vswitch_set_statistics(cfg, NULL);
2215 run_system_stats(void)
2217 const struct ovsrec_open_vswitch *cfg = ovsrec_open_vswitch_first(idl);
2220 stats = system_stats_run();
2222 struct ovsdb_idl_txn *txn;
2223 struct ovsdb_datum datum;
2225 txn = ovsdb_idl_txn_create(idl);
2226 ovsdb_datum_from_smap(&datum, stats);
2227 ovsdb_idl_txn_write(&cfg->header_, &ovsrec_open_vswitch_col_statistics,
2229 ovsdb_idl_txn_commit(txn);
2230 ovsdb_idl_txn_destroy(txn);
2237 ofp12_controller_role_to_str(enum ofp12_controller_role role)
2240 case OFPCR12_ROLE_EQUAL:
2242 case OFPCR12_ROLE_MASTER:
2244 case OFPCR12_ROLE_SLAVE:
2246 case OFPCR12_ROLE_NOCHANGE:
2248 return "*** INVALID ROLE ***";
2253 refresh_controller_status(void)
2257 const struct ovsrec_controller *cfg;
2261 /* Accumulate status for controllers on all bridges. */
2262 HMAP_FOR_EACH (br, node, &all_bridges) {
2263 ofproto_get_ofproto_controller_info(br->ofproto, &info);
2266 /* Update each controller in the database with current status. */
2267 OVSREC_CONTROLLER_FOR_EACH(cfg, idl) {
2268 struct ofproto_controller_info *cinfo =
2269 shash_find_data(&info, cfg->target);
2272 ovsrec_controller_set_is_connected(cfg, cinfo->is_connected);
2273 ovsrec_controller_set_role(cfg, ofp12_controller_role_to_str(
2275 ovsrec_controller_set_status(cfg, &cinfo->pairs);
2277 ovsrec_controller_set_is_connected(cfg, false);
2278 ovsrec_controller_set_role(cfg, NULL);
2279 ovsrec_controller_set_status(cfg, NULL);
2283 ofproto_free_ofproto_controller_info(&info);
2293 /* Let each datapath type do the work that it needs to do. */
2295 ofproto_enumerate_types(&types);
2296 SSET_FOR_EACH (type, &types) {
2297 ofproto_type_run(type);
2299 sset_destroy(&types);
2301 /* Let each bridge do the work that it needs to do. */
2302 HMAP_FOR_EACH (br, node, &all_bridges) {
2303 ofproto_run(br->ofproto);
2310 static struct ovsrec_open_vswitch null_cfg;
2311 const struct ovsrec_open_vswitch *cfg;
2313 bool vlan_splinters_changed;
2317 ovsrec_open_vswitch_init(&null_cfg);
2321 if (ovsdb_idl_is_lock_contended(idl)) {
2322 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
2323 struct bridge *br, *next_br;
2325 VLOG_ERR_RL(&rl, "another ovs-vswitchd process is running, "
2326 "disabling this process (pid %ld) until it goes away",
2327 (long int) getpid());
2329 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
2332 /* Since we will not be running system_stats_run() in this process
2333 * with the current situation of multiple ovs-vswitchd daemons,
2334 * disable system stats collection. */
2335 system_stats_enable(false);
2337 } else if (!ovsdb_idl_has_lock(idl)) {
2340 cfg = ovsrec_open_vswitch_first(idl);
2342 /* Initialize the ofproto library. This only needs to run once, but
2343 * it must be done after the configuration is set. If the
2344 * initialization has already occurred, bridge_init_ofproto()
2345 * returns immediately. */
2346 bridge_init_ofproto(cfg);
2348 /* Once the value of flow-restore-wait is false, we no longer should
2349 * check its value from the database. */
2350 if (cfg && ofproto_get_flow_restore_wait()) {
2351 ofproto_set_flow_restore_wait(smap_get_bool(&cfg->other_config,
2352 "flow-restore-wait", false));
2357 /* Re-configure SSL. We do this on every trip through the main loop,
2358 * instead of just when the database changes, because the contents of the
2359 * key and certificate files can change without the database changing.
2361 * We do this before bridge_reconfigure() because that function might
2362 * initiate SSL connections and thus requires SSL to be configured. */
2363 if (cfg && cfg->ssl) {
2364 const struct ovsrec_ssl *ssl = cfg->ssl;
2366 stream_ssl_set_key_and_cert(ssl->private_key, ssl->certificate);
2367 stream_ssl_set_ca_cert_file(ssl->ca_cert, ssl->bootstrap_ca_cert);
2370 /* If VLAN splinters are in use, then we need to reconfigure if VLAN
2371 * usage has changed. */
2372 vlan_splinters_changed = false;
2373 if (vlan_splinters_enabled_anywhere) {
2374 HMAP_FOR_EACH (br, node, &all_bridges) {
2375 if (ofproto_has_vlan_usage_changed(br->ofproto)) {
2376 vlan_splinters_changed = true;
2382 if (ovsdb_idl_get_seqno(idl) != idl_seqno || vlan_splinters_changed) {
2383 struct ovsdb_idl_txn *txn;
2385 idl_seqno = ovsdb_idl_get_seqno(idl);
2386 txn = ovsdb_idl_txn_create(idl);
2387 bridge_reconfigure(cfg ? cfg : &null_cfg);
2390 ovsrec_open_vswitch_set_cur_cfg(cfg, cfg->next_cfg);
2393 /* If we are completing our initial configuration for this run
2394 * of ovs-vswitchd, then keep the transaction around to monitor
2395 * it for completion. */
2396 if (initial_config_done) {
2397 /* Always sets the 'status_txn_try_again' to check again,
2398 * in case that this transaction fails. */
2399 status_txn_try_again = true;
2400 ovsdb_idl_txn_commit(txn);
2401 ovsdb_idl_txn_destroy(txn);
2403 initial_config_done = true;
2404 daemonize_txn = txn;
2408 if (daemonize_txn) {
2409 enum ovsdb_idl_txn_status status = ovsdb_idl_txn_commit(daemonize_txn);
2410 if (status != TXN_INCOMPLETE) {
2411 ovsdb_idl_txn_destroy(daemonize_txn);
2412 daemonize_txn = NULL;
2414 /* ovs-vswitchd has completed initialization, so allow the
2415 * process that forked us to exit successfully. */
2416 daemonize_complete();
2418 vlog_enable_async();
2420 VLOG_INFO_ONCE("%s (Open vSwitch) %s", program_name, VERSION);
2424 /* Statistics update interval should always be greater than or equal to
2427 stats_interval = MAX(smap_get_int(&cfg->other_config,
2428 "stats-update-interval",
2431 stats_interval = 5000;
2433 if (stats_timer_interval != stats_interval) {
2434 stats_timer_interval = stats_interval;
2435 stats_timer = LLONG_MIN;
2438 /* Refresh interface and mirror stats if necessary. */
2439 if (time_msec() >= stats_timer) {
2441 struct ovsdb_idl_txn *txn;
2443 txn = ovsdb_idl_txn_create(idl);
2444 HMAP_FOR_EACH (br, node, &all_bridges) {
2448 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
2449 struct iface *iface;
2451 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
2452 iface_refresh_stats(iface);
2455 port_refresh_stp_stats(port);
2458 HMAP_FOR_EACH (m, hmap_node, &br->mirrors) {
2459 mirror_refresh_stats(m);
2463 refresh_controller_status();
2464 ovsdb_idl_txn_commit(txn);
2465 ovsdb_idl_txn_destroy(txn); /* XXX */
2468 stats_timer = time_msec() + stats_timer_interval;
2474 /* Check the need to update status. */
2475 seq = seq_read(connectivity_seq_get());
2476 if (seq != connectivity_seqno || status_txn_try_again) {
2477 connectivity_seqno = seq;
2478 status_txn = ovsdb_idl_txn_create(idl);
2479 HMAP_FOR_EACH (br, node, &all_bridges) {
2482 br_refresh_stp_status(br);
2483 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
2484 struct iface *iface;
2486 port_refresh_stp_status(port);
2487 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
2488 iface_refresh_netdev_status(iface);
2489 iface_refresh_ofproto_status(iface);
2497 enum ovsdb_idl_txn_status status;
2499 status = ovsdb_idl_txn_commit(status_txn);
2500 /* Do not destroy "status_txn" if the transaction is
2501 * "TXN_INCOMPLETE". */
2502 if (status != TXN_INCOMPLETE) {
2503 ovsdb_idl_txn_destroy(status_txn);
2506 /* Sets the 'status_txn_try_again' if the transaction fails. */
2507 if (status == TXN_SUCCESS || status == TXN_UNCHANGED) {
2508 status_txn_try_again = false;
2510 status_txn_try_again = true;
2524 ovsdb_idl_wait(idl);
2525 if (daemonize_txn) {
2526 ovsdb_idl_txn_wait(daemonize_txn);
2530 ofproto_enumerate_types(&types);
2531 SSET_FOR_EACH (type, &types) {
2532 ofproto_type_wait(type);
2534 sset_destroy(&types);
2536 if (!hmap_is_empty(&all_bridges)) {
2539 HMAP_FOR_EACH (br, node, &all_bridges) {
2540 ofproto_wait(br->ofproto);
2543 poll_timer_wait_until(stats_timer);
2546 /* If the 'status_txn' is non-null (transaction incomplete), waits for the
2547 * transaction to complete. If the status update to database needs to be
2548 * run again (transaction fails), registers a timeout in
2549 * 'STATUS_CHECK_AGAIN_MSEC'. Otherwise, waits on the global connectivity
2550 * sequence number. */
2552 ovsdb_idl_txn_wait(status_txn);
2553 } else if (status_txn_try_again) {
2554 poll_timer_wait_until(time_msec() + STATUS_CHECK_AGAIN_MSEC);
2556 seq_wait(connectivity_seq_get(), connectivity_seqno);
2559 system_stats_wait();
2562 /* Adds some memory usage statistics for bridges into 'usage', for use with
2563 * memory_report(). */
2565 bridge_get_memory_usage(struct simap *usage)
2572 ofproto_enumerate_types(&types);
2573 SSET_FOR_EACH (type, &types) {
2574 ofproto_type_get_memory_usage(type, usage);
2576 sset_destroy(&types);
2578 HMAP_FOR_EACH (br, node, &all_bridges) {
2579 ofproto_get_memory_usage(br->ofproto, usage);
2583 /* QoS unixctl user interface functions. */
2585 struct qos_unixctl_show_cbdata {
2587 struct iface *iface;
2591 qos_unixctl_show_queue(unsigned int queue_id,
2592 const struct smap *details,
2593 struct iface *iface,
2596 struct netdev_queue_stats stats;
2597 struct smap_node *node;
2600 ds_put_cstr(ds, "\n");
2602 ds_put_format(ds, "Queue %u:\n", queue_id);
2604 ds_put_cstr(ds, "Default:\n");
2607 SMAP_FOR_EACH (node, details) {
2608 ds_put_format(ds, "\t%s: %s\n", node->key, node->value);
2611 error = netdev_get_queue_stats(iface->netdev, queue_id, &stats);
2613 if (stats.tx_packets != UINT64_MAX) {
2614 ds_put_format(ds, "\ttx_packets: %"PRIu64"\n", stats.tx_packets);
2617 if (stats.tx_bytes != UINT64_MAX) {
2618 ds_put_format(ds, "\ttx_bytes: %"PRIu64"\n", stats.tx_bytes);
2621 if (stats.tx_errors != UINT64_MAX) {
2622 ds_put_format(ds, "\ttx_errors: %"PRIu64"\n", stats.tx_errors);
2625 ds_put_format(ds, "\tFailed to get statistics for queue %u: %s",
2626 queue_id, ovs_strerror(error));
2631 qos_unixctl_show(struct unixctl_conn *conn, int argc OVS_UNUSED,
2632 const char *argv[], void *aux OVS_UNUSED)
2634 struct ds ds = DS_EMPTY_INITIALIZER;
2635 struct smap smap = SMAP_INITIALIZER(&smap);
2636 struct iface *iface;
2638 struct smap_node *node;
2640 iface = iface_find(argv[1]);
2642 unixctl_command_reply_error(conn, "no such interface");
2646 netdev_get_qos(iface->netdev, &type, &smap);
2648 if (*type != '\0') {
2649 struct netdev_queue_dump dump;
2650 struct smap details;
2651 unsigned int queue_id;
2653 ds_put_format(&ds, "QoS: %s %s\n", iface->name, type);
2655 SMAP_FOR_EACH (node, &smap) {
2656 ds_put_format(&ds, "%s: %s\n", node->key, node->value);
2659 smap_init(&details);
2660 NETDEV_QUEUE_FOR_EACH (&queue_id, &details, &dump, iface->netdev) {
2661 qos_unixctl_show_queue(queue_id, &details, iface, &ds);
2663 smap_destroy(&details);
2665 unixctl_command_reply(conn, ds_cstr(&ds));
2667 ds_put_format(&ds, "QoS not configured on %s\n", iface->name);
2668 unixctl_command_reply_error(conn, ds_cstr(&ds));
2671 smap_destroy(&smap);
2675 /* Bridge reconfiguration functions. */
2677 bridge_create(const struct ovsrec_bridge *br_cfg)
2681 ovs_assert(!bridge_lookup(br_cfg->name));
2682 br = xzalloc(sizeof *br);
2684 br->name = xstrdup(br_cfg->name);
2685 br->type = xstrdup(ofproto_normalize_type(br_cfg->datapath_type));
2688 /* Derive the default Ethernet address from the bridge's UUID. This should
2689 * be unique and it will be stable between ovs-vswitchd runs. */
2690 memcpy(br->default_ea, &br_cfg->header_.uuid, ETH_ADDR_LEN);
2691 eth_addr_mark_random(br->default_ea);
2693 hmap_init(&br->ports);
2694 hmap_init(&br->ifaces);
2695 hmap_init(&br->iface_by_name);
2696 hmap_init(&br->mirrors);
2698 hmap_insert(&all_bridges, &br->node, hash_string(br->name, 0));
2702 bridge_destroy(struct bridge *br)
2705 struct mirror *mirror, *next_mirror;
2706 struct port *port, *next_port;
2708 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
2711 HMAP_FOR_EACH_SAFE (mirror, next_mirror, hmap_node, &br->mirrors) {
2712 mirror_destroy(mirror);
2715 hmap_remove(&all_bridges, &br->node);
2716 ofproto_destroy(br->ofproto);
2717 hmap_destroy(&br->ifaces);
2718 hmap_destroy(&br->ports);
2719 hmap_destroy(&br->iface_by_name);
2720 hmap_destroy(&br->mirrors);
2727 static struct bridge *
2728 bridge_lookup(const char *name)
2732 HMAP_FOR_EACH_WITH_HASH (br, node, hash_string(name, 0), &all_bridges) {
2733 if (!strcmp(br->name, name)) {
2740 /* Handle requests for a listing of all flows known by the OpenFlow
2741 * stack, including those normally hidden. */
2743 bridge_unixctl_dump_flows(struct unixctl_conn *conn, int argc OVS_UNUSED,
2744 const char *argv[], void *aux OVS_UNUSED)
2749 br = bridge_lookup(argv[1]);
2751 unixctl_command_reply_error(conn, "Unknown bridge");
2756 ofproto_get_all_flows(br->ofproto, &results);
2758 unixctl_command_reply(conn, ds_cstr(&results));
2759 ds_destroy(&results);
2762 /* "bridge/reconnect [BRIDGE]": makes BRIDGE drop all of its controller
2763 * connections and reconnect. If BRIDGE is not specified, then all bridges
2764 * drop their controller connections and reconnect. */
2766 bridge_unixctl_reconnect(struct unixctl_conn *conn, int argc,
2767 const char *argv[], void *aux OVS_UNUSED)
2771 br = bridge_lookup(argv[1]);
2773 unixctl_command_reply_error(conn, "Unknown bridge");
2776 ofproto_reconnect_controllers(br->ofproto);
2778 HMAP_FOR_EACH (br, node, &all_bridges) {
2779 ofproto_reconnect_controllers(br->ofproto);
2782 unixctl_command_reply(conn, NULL);
2786 bridge_get_controllers(const struct bridge *br,
2787 struct ovsrec_controller ***controllersp)
2789 struct ovsrec_controller **controllers;
2790 size_t n_controllers;
2792 controllers = br->cfg->controller;
2793 n_controllers = br->cfg->n_controller;
2795 if (n_controllers == 1 && !strcmp(controllers[0]->target, "none")) {
2801 *controllersp = controllers;
2803 return n_controllers;
2807 bridge_collect_wanted_ports(struct bridge *br,
2808 const unsigned long int *splinter_vlans,
2809 struct shash *wanted_ports)
2813 shash_init(wanted_ports);
2815 for (i = 0; i < br->cfg->n_ports; i++) {
2816 const char *name = br->cfg->ports[i]->name;
2817 if (!shash_add_once(wanted_ports, name, br->cfg->ports[i])) {
2818 VLOG_WARN("bridge %s: %s specified twice as bridge port",
2822 if (bridge_get_controllers(br, NULL)
2823 && !shash_find(wanted_ports, br->name)) {
2824 VLOG_WARN("bridge %s: no port named %s, synthesizing one",
2825 br->name, br->name);
2827 ovsrec_interface_init(&br->synth_local_iface);
2828 ovsrec_port_init(&br->synth_local_port);
2830 br->synth_local_port.interfaces = &br->synth_local_ifacep;
2831 br->synth_local_port.n_interfaces = 1;
2832 br->synth_local_port.name = br->name;
2834 br->synth_local_iface.name = br->name;
2835 br->synth_local_iface.type = "internal";
2837 br->synth_local_ifacep = &br->synth_local_iface;
2839 shash_add(wanted_ports, br->name, &br->synth_local_port);
2842 if (splinter_vlans) {
2843 add_vlan_splinter_ports(br, splinter_vlans, wanted_ports);
2847 /* Deletes "struct port"s and "struct iface"s under 'br' which aren't
2848 * consistent with 'br->cfg'. Updates 'br->if_cfg_queue' with interfaces which
2849 * 'br' needs to complete its configuration. */
2851 bridge_del_ports(struct bridge *br, const struct shash *wanted_ports)
2853 struct shash_node *port_node;
2854 struct port *port, *next;
2856 /* Get rid of deleted ports.
2857 * Get rid of deleted interfaces on ports that still exist. */
2858 HMAP_FOR_EACH_SAFE (port, next, hmap_node, &br->ports) {
2859 port->cfg = shash_find_data(wanted_ports, port->name);
2863 port_del_ifaces(port);
2867 /* Update iface->cfg and iface->type in interfaces that still exist. */
2868 SHASH_FOR_EACH (port_node, wanted_ports) {
2869 const struct ovsrec_port *port = port_node->data;
2872 for (i = 0; i < port->n_interfaces; i++) {
2873 const struct ovsrec_interface *cfg = port->interfaces[i];
2874 struct iface *iface = iface_lookup(br, cfg->name);
2875 const char *type = iface_get_type(cfg, br->cfg);
2880 } else if (!strcmp(type, "null")) {
2881 VLOG_WARN_ONCE("%s: The null interface type is deprecated and"
2882 " may be removed in February 2013. Please email"
2883 " dev@openvswitch.org with concerns.",
2886 /* We will add new interfaces later. */
2892 /* Initializes 'oc' appropriately as a management service controller for
2895 * The caller must free oc->target when it is no longer needed. */
2897 bridge_ofproto_controller_for_mgmt(const struct bridge *br,
2898 struct ofproto_controller *oc)
2900 oc->target = xasprintf("punix:%s/%s.mgmt", ovs_rundir(), br->name);
2901 oc->max_backoff = 0;
2902 oc->probe_interval = 60;
2903 oc->band = OFPROTO_OUT_OF_BAND;
2905 oc->burst_limit = 0;
2906 oc->enable_async_msgs = true;
2910 /* Converts ovsrec_controller 'c' into an ofproto_controller in 'oc'. */
2912 bridge_ofproto_controller_from_ovsrec(const struct ovsrec_controller *c,
2913 struct ofproto_controller *oc)
2917 oc->target = c->target;
2918 oc->max_backoff = c->max_backoff ? *c->max_backoff / 1000 : 8;
2919 oc->probe_interval = c->inactivity_probe ? *c->inactivity_probe / 1000 : 5;
2920 oc->band = (!c->connection_mode || !strcmp(c->connection_mode, "in-band")
2921 ? OFPROTO_IN_BAND : OFPROTO_OUT_OF_BAND);
2922 oc->rate_limit = c->controller_rate_limit ? *c->controller_rate_limit : 0;
2923 oc->burst_limit = (c->controller_burst_limit
2924 ? *c->controller_burst_limit : 0);
2925 oc->enable_async_msgs = (!c->enable_async_messages
2926 || *c->enable_async_messages);
2927 dscp = smap_get_int(&c->other_config, "dscp", DSCP_DEFAULT);
2928 if (dscp < 0 || dscp > 63) {
2929 dscp = DSCP_DEFAULT;
2934 /* Configures the IP stack for 'br''s local interface properly according to the
2935 * configuration in 'c'. */
2937 bridge_configure_local_iface_netdev(struct bridge *br,
2938 struct ovsrec_controller *c)
2940 struct netdev *netdev;
2941 struct in_addr mask, gateway;
2943 struct iface *local_iface;
2946 /* If there's no local interface or no IP address, give up. */
2947 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
2948 if (!local_iface || !c->local_ip
2949 || !inet_pton(AF_INET, c->local_ip, &ip)) {
2953 /* Bring up the local interface. */
2954 netdev = local_iface->netdev;
2955 netdev_turn_flags_on(netdev, NETDEV_UP, NULL);
2957 /* Configure the IP address and netmask. */
2958 if (!c->local_netmask
2959 || !inet_pton(AF_INET, c->local_netmask, &mask)
2961 mask.s_addr = guess_netmask(ip.s_addr);
2963 if (!netdev_set_in4(netdev, ip, mask)) {
2964 VLOG_INFO("bridge %s: configured IP address "IP_FMT", netmask "IP_FMT,
2965 br->name, IP_ARGS(ip.s_addr), IP_ARGS(mask.s_addr));
2968 /* Configure the default gateway. */
2969 if (c->local_gateway
2970 && inet_pton(AF_INET, c->local_gateway, &gateway)
2971 && gateway.s_addr) {
2972 if (!netdev_add_router(netdev, gateway)) {
2973 VLOG_INFO("bridge %s: configured gateway "IP_FMT,
2974 br->name, IP_ARGS(gateway.s_addr));
2979 /* Returns true if 'a' and 'b' are the same except that any number of slashes
2980 * in either string are treated as equal to any number of slashes in the other,
2981 * e.g. "x///y" is equal to "x/y".
2983 * Also, if 'b_stoplen' bytes from 'b' are found to be equal to corresponding
2984 * bytes from 'a', the function considers this success. Specify 'b_stoplen' as
2985 * SIZE_MAX to compare all of 'a' to all of 'b' rather than just a prefix of
2986 * 'b' against a prefix of 'a'.
2989 equal_pathnames(const char *a, const char *b, size_t b_stoplen)
2991 const char *b_start = b;
2993 if (b - b_start >= b_stoplen) {
2995 } else if (*a != *b) {
2997 } else if (*a == '/') {
2998 a += strspn(a, "/");
2999 b += strspn(b, "/");
3000 } else if (*a == '\0') {
3010 bridge_configure_remotes(struct bridge *br,
3011 const struct sockaddr_in *managers, size_t n_managers)
3013 bool disable_in_band;
3015 struct ovsrec_controller **controllers;
3016 size_t n_controllers;
3018 enum ofproto_fail_mode fail_mode;
3020 struct ofproto_controller *ocs;
3024 /* Check if we should disable in-band control on this bridge. */
3025 disable_in_band = smap_get_bool(&br->cfg->other_config, "disable-in-band",
3028 /* Set OpenFlow queue ID for in-band control. */
3029 ofproto_set_in_band_queue(br->ofproto,
3030 smap_get_int(&br->cfg->other_config,
3031 "in-band-queue", -1));
3033 if (disable_in_band) {
3034 ofproto_set_extra_in_band_remotes(br->ofproto, NULL, 0);
3036 ofproto_set_extra_in_band_remotes(br->ofproto, managers, n_managers);
3039 n_controllers = bridge_get_controllers(br, &controllers);
3041 ocs = xmalloc((n_controllers + 1) * sizeof *ocs);
3044 bridge_ofproto_controller_for_mgmt(br, &ocs[n_ocs++]);
3045 for (i = 0; i < n_controllers; i++) {
3046 struct ovsrec_controller *c = controllers[i];
3048 if (!strncmp(c->target, "punix:", 6)
3049 || !strncmp(c->target, "unix:", 5)) {
3050 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
3053 if (!strncmp(c->target, "unix:", 5)) {
3054 /* Connect to a listening socket */
3055 whitelist = xasprintf("unix:%s/", ovs_rundir());
3056 if (strchr(c->target, '/') &&
3057 !equal_pathnames(c->target, whitelist,
3058 strlen(whitelist))) {
3059 /* Absolute path specified, but not in ovs_rundir */
3060 VLOG_ERR_RL(&rl, "bridge %s: Not connecting to socket "
3061 "controller \"%s\" due to possibility for "
3062 "remote exploit. Instead, specify socket "
3063 "in whitelisted \"%s\" or connect to "
3064 "\"unix:%s/%s.mgmt\" (which is always "
3065 "available without special configuration).",
3066 br->name, c->target, whitelist,
3067 ovs_rundir(), br->name);
3072 whitelist = xasprintf("punix:%s/%s.controller",
3073 ovs_rundir(), br->name);
3074 if (!equal_pathnames(c->target, whitelist, SIZE_MAX)) {
3075 /* Prevent remote ovsdb-server users from accessing
3076 * arbitrary Unix domain sockets and overwriting arbitrary
3078 VLOG_ERR_RL(&rl, "bridge %s: Not adding Unix domain socket "
3079 "controller \"%s\" due to possibility of "
3080 "overwriting local files. Instead, specify "
3081 "whitelisted \"%s\" or connect to "
3082 "\"unix:%s/%s.mgmt\" (which is always "
3083 "available without special configuration).",
3084 br->name, c->target, whitelist,
3085 ovs_rundir(), br->name);
3094 bridge_configure_local_iface_netdev(br, c);
3095 bridge_ofproto_controller_from_ovsrec(c, &ocs[n_ocs]);
3096 if (disable_in_band) {
3097 ocs[n_ocs].band = OFPROTO_OUT_OF_BAND;
3102 ofproto_set_controllers(br->ofproto, ocs, n_ocs,
3103 bridge_get_allowed_versions(br));
3104 free(ocs[0].target); /* From bridge_ofproto_controller_for_mgmt(). */
3107 /* Set the fail-mode. */
3108 fail_mode = !br->cfg->fail_mode
3109 || !strcmp(br->cfg->fail_mode, "standalone")
3110 ? OFPROTO_FAIL_STANDALONE
3111 : OFPROTO_FAIL_SECURE;
3112 ofproto_set_fail_mode(br->ofproto, fail_mode);
3114 /* Configure OpenFlow controller connection snooping. */
3115 if (!ofproto_has_snoops(br->ofproto)) {
3119 sset_add_and_free(&snoops, xasprintf("punix:%s/%s.snoop",
3120 ovs_rundir(), br->name));
3121 ofproto_set_snoops(br->ofproto, &snoops);
3122 sset_destroy(&snoops);
3127 bridge_configure_tables(struct bridge *br)
3129 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
3133 n_tables = ofproto_get_n_tables(br->ofproto);
3135 for (i = 0; i < n_tables; i++) {
3136 struct ofproto_table_settings s;
3137 bool use_default_prefixes = true;
3140 s.max_flows = UINT_MAX;
3143 s.n_prefix_fields = 0;
3144 memset(s.prefix_fields, ~0, sizeof(s.prefix_fields));
3146 if (j < br->cfg->n_flow_tables && i == br->cfg->key_flow_tables[j]) {
3147 struct ovsrec_flow_table *cfg = br->cfg->value_flow_tables[j++];
3150 if (cfg->n_flow_limit && *cfg->flow_limit < UINT_MAX) {
3151 s.max_flows = *cfg->flow_limit;
3153 if (cfg->overflow_policy
3154 && !strcmp(cfg->overflow_policy, "evict")) {
3156 s.groups = xmalloc(cfg->n_groups * sizeof *s.groups);
3157 for (k = 0; k < cfg->n_groups; k++) {
3158 const char *string = cfg->groups[k];
3161 msg = mf_parse_subfield__(&s.groups[k], &string);
3163 VLOG_WARN_RL(&rl, "bridge %s table %d: error parsing "
3164 "'groups' (%s)", br->name, i, msg);
3166 } else if (*string) {
3167 VLOG_WARN_RL(&rl, "bridge %s table %d: 'groups' "
3168 "element '%s' contains trailing garbage",
3169 br->name, i, cfg->groups[k]);
3175 /* Prefix lookup fields. */
3176 s.n_prefix_fields = 0;
3177 for (k = 0; k < cfg->n_prefixes; k++) {
3178 const char *name = cfg->prefixes[k];
3179 const struct mf_field *mf;
3181 if (strcmp(name, "none") == 0) {
3182 use_default_prefixes = false;
3183 s.n_prefix_fields = 0;
3186 mf = mf_from_name(name);
3188 VLOG_WARN("bridge %s: 'prefixes' with unknown field: %s",
3192 if (mf->flow_be32ofs < 0 || mf->n_bits % 32) {
3193 VLOG_WARN("bridge %s: 'prefixes' with incompatible field: "
3194 "%s", br->name, name);
3197 if (s.n_prefix_fields >= ARRAY_SIZE(s.prefix_fields)) {
3198 VLOG_WARN("bridge %s: 'prefixes' with too many fields, "
3199 "field not used: %s", br->name, name);
3202 use_default_prefixes = false;
3203 s.prefix_fields[s.n_prefix_fields++] = mf->id;
3206 if (use_default_prefixes) {
3207 /* Use default values. */
3208 s.n_prefix_fields = ARRAY_SIZE(default_prefix_fields);
3209 memcpy(s.prefix_fields, default_prefix_fields,
3210 sizeof default_prefix_fields);
3213 struct ds ds = DS_EMPTY_INITIALIZER;
3214 for (k = 0; k < s.n_prefix_fields; k++) {
3216 ds_put_char(&ds, ',');
3218 ds_put_cstr(&ds, mf_from_id(s.prefix_fields[k])->name);
3220 if (s.n_prefix_fields == 0) {
3221 ds_put_cstr(&ds, "none");
3223 VLOG_INFO("bridge %s table %d: Prefix lookup with: %s.",
3224 br->name, i, ds_cstr(&ds));
3228 ofproto_configure_table(br->ofproto, i, &s);
3232 for (; j < br->cfg->n_flow_tables; j++) {
3233 VLOG_WARN_RL(&rl, "bridge %s: ignoring configuration for flow table "
3234 "%"PRId64" not supported by this datapath", br->name,
3235 br->cfg->key_flow_tables[j]);
3240 bridge_configure_dp_desc(struct bridge *br)
3242 ofproto_set_dp_desc(br->ofproto,
3243 smap_get(&br->cfg->other_config, "dp-desc"));
3246 /* Port functions. */
3248 static struct port *
3249 port_create(struct bridge *br, const struct ovsrec_port *cfg)
3253 port = xzalloc(sizeof *port);
3255 port->name = xstrdup(cfg->name);
3257 list_init(&port->ifaces);
3259 hmap_insert(&br->ports, &port->hmap_node, hash_string(port->name, 0));
3263 /* Deletes interfaces from 'port' that are no longer configured for it. */
3265 port_del_ifaces(struct port *port)
3267 struct iface *iface, *next;
3268 struct sset new_ifaces;
3271 /* Collect list of new interfaces. */
3272 sset_init(&new_ifaces);
3273 for (i = 0; i < port->cfg->n_interfaces; i++) {
3274 const char *name = port->cfg->interfaces[i]->name;
3275 const char *type = port->cfg->interfaces[i]->type;
3276 if (strcmp(type, "null")) {
3277 sset_add(&new_ifaces, name);
3281 /* Get rid of deleted interfaces. */
3282 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
3283 if (!sset_contains(&new_ifaces, iface->name)) {
3284 iface_destroy(iface);
3288 sset_destroy(&new_ifaces);
3292 port_destroy(struct port *port)
3295 struct bridge *br = port->bridge;
3296 struct iface *iface, *next;
3299 ofproto_bundle_unregister(br->ofproto, port);
3302 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
3303 iface_destroy__(iface);
3306 hmap_remove(&br->ports, &port->hmap_node);
3312 static struct port *
3313 port_lookup(const struct bridge *br, const char *name)
3317 HMAP_FOR_EACH_WITH_HASH (port, hmap_node, hash_string(name, 0),
3319 if (!strcmp(port->name, name)) {
3327 enable_lacp(struct port *port, bool *activep)
3329 if (!port->cfg->lacp) {
3330 /* XXX when LACP implementation has been sufficiently tested, enable by
3331 * default and make active on bonded ports. */
3333 } else if (!strcmp(port->cfg->lacp, "off")) {
3335 } else if (!strcmp(port->cfg->lacp, "active")) {
3338 } else if (!strcmp(port->cfg->lacp, "passive")) {
3342 VLOG_WARN("port %s: unknown LACP mode %s",
3343 port->name, port->cfg->lacp);
3348 static struct lacp_settings *
3349 port_configure_lacp(struct port *port, struct lacp_settings *s)
3351 const char *lacp_time, *system_id;
3354 if (!enable_lacp(port, &s->active)) {
3358 s->name = port->name;
3360 system_id = smap_get(&port->cfg->other_config, "lacp-system-id");
3362 if (!ovs_scan(system_id, ETH_ADDR_SCAN_FMT,
3363 ETH_ADDR_SCAN_ARGS(s->id))) {
3364 VLOG_WARN("port %s: LACP system ID (%s) must be an Ethernet"
3365 " address.", port->name, system_id);
3369 memcpy(s->id, port->bridge->ea, ETH_ADDR_LEN);
3372 if (eth_addr_is_zero(s->id)) {
3373 VLOG_WARN("port %s: Invalid zero LACP system ID.", port->name);
3377 /* Prefer bondable links if unspecified. */
3378 priority = smap_get_int(&port->cfg->other_config, "lacp-system-priority",
3380 s->priority = (priority > 0 && priority <= UINT16_MAX
3382 : UINT16_MAX - !list_is_short(&port->ifaces));
3384 lacp_time = smap_get(&port->cfg->other_config, "lacp-time");
3385 s->fast = lacp_time && !strcasecmp(lacp_time, "fast");
3387 s->fallback_ab_cfg = smap_get_bool(&port->cfg->other_config,
3388 "lacp-fallback-ab", false);
3394 iface_configure_lacp(struct iface *iface, struct lacp_slave_settings *s)
3396 int priority, portid, key;
3398 portid = smap_get_int(&iface->cfg->other_config, "lacp-port-id", 0);
3399 priority = smap_get_int(&iface->cfg->other_config, "lacp-port-priority",
3401 key = smap_get_int(&iface->cfg->other_config, "lacp-aggregation-key", 0);
3403 if (portid <= 0 || portid > UINT16_MAX) {
3404 portid = ofp_to_u16(iface->ofp_port);
3407 if (priority <= 0 || priority > UINT16_MAX) {
3408 priority = UINT16_MAX;
3411 if (key < 0 || key > UINT16_MAX) {
3415 s->name = iface->name;
3417 s->priority = priority;
3422 port_configure_bond(struct port *port, struct bond_settings *s)
3424 const char *detect_s;
3425 struct iface *iface;
3426 int miimon_interval;
3428 s->name = port->name;
3430 if (port->cfg->bond_mode) {
3431 if (!bond_mode_from_string(&s->balance, port->cfg->bond_mode)) {
3432 VLOG_WARN("port %s: unknown bond_mode %s, defaulting to %s",
3433 port->name, port->cfg->bond_mode,
3434 bond_mode_to_string(s->balance));
3437 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
3439 /* XXX: Post version 1.5.*, the default bond_mode changed from SLB to
3440 * active-backup. At some point we should remove this warning. */
3441 VLOG_WARN_RL(&rl, "port %s: Using the default bond_mode %s. Note that"
3442 " in previous versions, the default bond_mode was"
3443 " balance-slb", port->name,
3444 bond_mode_to_string(s->balance));
3446 if (s->balance == BM_SLB && port->bridge->cfg->n_flood_vlans) {
3447 VLOG_WARN("port %s: SLB bonds are incompatible with flood_vlans, "
3448 "please use another bond type or disable flood_vlans",
3452 miimon_interval = smap_get_int(&port->cfg->other_config,
3453 "bond-miimon-interval", 0);
3454 if (miimon_interval <= 0) {
3455 miimon_interval = 200;
3458 detect_s = smap_get(&port->cfg->other_config, "bond-detect-mode");
3459 if (!detect_s || !strcmp(detect_s, "carrier")) {
3460 miimon_interval = 0;
3461 } else if (strcmp(detect_s, "miimon")) {
3462 VLOG_WARN("port %s: unsupported bond-detect-mode %s, "
3463 "defaulting to carrier", port->name, detect_s);
3464 miimon_interval = 0;
3467 s->up_delay = MAX(0, port->cfg->bond_updelay);
3468 s->down_delay = MAX(0, port->cfg->bond_downdelay);
3469 s->basis = smap_get_int(&port->cfg->other_config, "bond-hash-basis", 0);
3470 s->rebalance_interval = smap_get_int(&port->cfg->other_config,
3471 "bond-rebalance-interval", 10000);
3472 if (s->rebalance_interval && s->rebalance_interval < 1000) {
3473 s->rebalance_interval = 1000;
3476 s->fake_iface = port->cfg->bond_fake_iface;
3478 s->lacp_fallback_ab_cfg = smap_get_bool(&port->cfg->other_config,
3479 "lacp-fallback-ab", false);
3481 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
3482 netdev_set_miimon_interval(iface->netdev, miimon_interval);
3486 /* Returns true if 'port' is synthetic, that is, if we constructed it locally
3487 * instead of obtaining it from the database. */
3489 port_is_synthetic(const struct port *port)
3491 return ovsdb_idl_row_is_synthetic(&port->cfg->header_);
3494 /* Interface functions. */
3497 iface_is_internal(const struct ovsrec_interface *iface,
3498 const struct ovsrec_bridge *br)
3500 /* The local port and "internal" ports are always "internal". */
3501 return !strcmp(iface->type, "internal") || !strcmp(iface->name, br->name);
3504 /* Returns the correct network device type for interface 'iface' in bridge
3507 iface_get_type(const struct ovsrec_interface *iface,
3508 const struct ovsrec_bridge *br)
3512 /* The local port always has type "internal". Other ports take
3513 * their type from the database and default to "system" if none is
3515 if (iface_is_internal(iface, br)) {
3518 type = iface->type[0] ? iface->type : "system";
3521 return ofproto_port_open_type(br->datapath_type, type);
3525 iface_destroy__(struct iface *iface)
3528 struct port *port = iface->port;
3529 struct bridge *br = port->bridge;
3531 if (br->ofproto && iface->ofp_port != OFPP_NONE) {
3532 ofproto_port_unregister(br->ofproto, iface->ofp_port);
3535 if (iface->ofp_port != OFPP_NONE) {
3536 hmap_remove(&br->ifaces, &iface->ofp_port_node);
3539 list_remove(&iface->port_elem);
3540 hmap_remove(&br->iface_by_name, &iface->name_node);
3542 /* The user is changing configuration here, so netdev_remove needs to be
3543 * used as opposed to netdev_close */
3544 netdev_remove(iface->netdev);
3552 iface_destroy(struct iface *iface)
3555 struct port *port = iface->port;
3557 iface_destroy__(iface);
3558 if (list_is_empty(&port->ifaces)) {
3564 static struct iface *
3565 iface_lookup(const struct bridge *br, const char *name)
3567 struct iface *iface;
3569 HMAP_FOR_EACH_WITH_HASH (iface, name_node, hash_string(name, 0),
3570 &br->iface_by_name) {
3571 if (!strcmp(iface->name, name)) {
3579 static struct iface *
3580 iface_find(const char *name)
3582 const struct bridge *br;
3584 HMAP_FOR_EACH (br, node, &all_bridges) {
3585 struct iface *iface = iface_lookup(br, name);
3594 static struct iface *
3595 iface_from_ofp_port(const struct bridge *br, ofp_port_t ofp_port)
3597 struct iface *iface;
3599 HMAP_FOR_EACH_IN_BUCKET (iface, ofp_port_node, hash_ofp_port(ofp_port),
3601 if (iface->ofp_port == ofp_port) {
3608 /* Set Ethernet address of 'iface', if one is specified in the configuration
3611 iface_set_mac(const struct bridge *br, const struct port *port, struct iface *iface)
3613 uint8_t ea[ETH_ADDR_LEN], *mac = NULL;
3614 struct iface *hw_addr_iface;
3616 if (strcmp(iface->type, "internal")) {
3620 if (iface->cfg->mac && eth_addr_from_string(iface->cfg->mac, ea)) {
3622 } else if (port->cfg->fake_bridge) {
3623 /* Fake bridge and no MAC set in the configuration. Pick a local one. */
3624 find_local_hw_addr(br, ea, port, &hw_addr_iface);
3629 if (iface->ofp_port == OFPP_LOCAL) {
3630 VLOG_ERR("interface %s: ignoring mac in Interface record "
3631 "(use Bridge record to set local port's mac)",
3633 } else if (eth_addr_is_multicast(mac)) {
3634 VLOG_ERR("interface %s: cannot set MAC to multicast address",
3637 int error = netdev_set_etheraddr(iface->netdev, mac);
3639 VLOG_ERR("interface %s: setting MAC failed (%s)",
3640 iface->name, ovs_strerror(error));
3646 /* Sets the ofport column of 'if_cfg' to 'ofport'. */
3648 iface_set_ofport(const struct ovsrec_interface *if_cfg, ofp_port_t ofport)
3650 if (if_cfg && !ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
3651 int64_t port = ofport == OFPP_NONE ? -1 : ofp_to_u16(ofport);
3652 ovsrec_interface_set_ofport(if_cfg, &port, 1);
3656 /* Clears all of the fields in 'if_cfg' that indicate interface status, and
3657 * sets the "ofport" field to -1.
3659 * This is appropriate when 'if_cfg''s interface cannot be created or is
3660 * otherwise invalid. */
3662 iface_clear_db_record(const struct ovsrec_interface *if_cfg, char *errp)
3664 if (!ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
3665 iface_set_ofport(if_cfg, OFPP_NONE);
3666 ovsrec_interface_set_error(if_cfg, errp);
3667 ovsrec_interface_set_status(if_cfg, NULL);
3668 ovsrec_interface_set_admin_state(if_cfg, NULL);
3669 ovsrec_interface_set_duplex(if_cfg, NULL);
3670 ovsrec_interface_set_link_speed(if_cfg, NULL, 0);
3671 ovsrec_interface_set_link_state(if_cfg, NULL);
3672 ovsrec_interface_set_mac_in_use(if_cfg, NULL);
3673 ovsrec_interface_set_mtu(if_cfg, NULL, 0);
3674 ovsrec_interface_set_cfm_fault(if_cfg, NULL, 0);
3675 ovsrec_interface_set_cfm_fault_status(if_cfg, NULL, 0);
3676 ovsrec_interface_set_cfm_remote_mpids(if_cfg, NULL, 0);
3677 ovsrec_interface_set_lacp_current(if_cfg, NULL, 0);
3678 ovsrec_interface_set_statistics(if_cfg, NULL, NULL, 0);
3679 ovsrec_interface_set_ifindex(if_cfg, NULL, 0);
3684 queue_ids_include(const struct ovsdb_datum *queues, int64_t target)
3686 union ovsdb_atom atom;
3688 atom.integer = target;
3689 return ovsdb_datum_find_key(queues, &atom, OVSDB_TYPE_INTEGER) != UINT_MAX;
3693 iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos)
3695 struct ofpbuf queues_buf;
3697 ofpbuf_init(&queues_buf, 0);
3699 if (!qos || qos->type[0] == '\0' || qos->n_queues < 1) {
3700 netdev_set_qos(iface->netdev, NULL, NULL);
3702 const struct ovsdb_datum *queues;
3703 struct netdev_queue_dump dump;
3704 unsigned int queue_id;
3705 struct smap details;
3709 /* Configure top-level Qos for 'iface'. */
3710 netdev_set_qos(iface->netdev, qos->type, &qos->other_config);
3712 /* Deconfigure queues that were deleted. */
3713 queues = ovsrec_qos_get_queues(qos, OVSDB_TYPE_INTEGER,
3715 smap_init(&details);
3716 NETDEV_QUEUE_FOR_EACH (&queue_id, &details, &dump, iface->netdev) {
3717 if (!queue_ids_include(queues, queue_id)) {
3718 netdev_delete_queue(iface->netdev, queue_id);
3721 smap_destroy(&details);
3723 /* Configure queues for 'iface'. */
3725 for (i = 0; i < qos->n_queues; i++) {
3726 const struct ovsrec_queue *queue = qos->value_queues[i];
3727 unsigned int queue_id = qos->key_queues[i];
3729 if (queue_id == 0) {
3733 if (queue->n_dscp == 1) {
3734 struct ofproto_port_queue *port_queue;
3736 port_queue = ofpbuf_put_uninit(&queues_buf,
3737 sizeof *port_queue);
3738 port_queue->queue = queue_id;
3739 port_queue->dscp = queue->dscp[0];
3742 netdev_set_queue(iface->netdev, queue_id, &queue->other_config);
3745 struct smap details;
3747 smap_init(&details);
3748 netdev_set_queue(iface->netdev, 0, &details);
3749 smap_destroy(&details);
3753 if (iface->ofp_port != OFPP_NONE) {
3754 const struct ofproto_port_queue *port_queues = ofpbuf_data(&queues_buf);
3755 size_t n_queues = ofpbuf_size(&queues_buf) / sizeof *port_queues;
3757 ofproto_port_set_queues(iface->port->bridge->ofproto, iface->ofp_port,
3758 port_queues, n_queues);
3761 netdev_set_policing(iface->netdev,
3762 iface->cfg->ingress_policing_rate,
3763 iface->cfg->ingress_policing_burst);
3765 ofpbuf_uninit(&queues_buf);
3769 iface_configure_cfm(struct iface *iface)
3771 const struct ovsrec_interface *cfg = iface->cfg;
3772 const char *opstate_str;
3773 const char *cfm_ccm_vlan;
3774 struct cfm_settings s;
3775 struct smap netdev_args;
3777 if (!cfg->n_cfm_mpid) {
3778 ofproto_port_clear_cfm(iface->port->bridge->ofproto, iface->ofp_port);
3782 s.check_tnl_key = false;
3783 smap_init(&netdev_args);
3784 if (!netdev_get_config(iface->netdev, &netdev_args)) {
3785 const char *key = smap_get(&netdev_args, "key");
3786 const char *in_key = smap_get(&netdev_args, "in_key");
3788 s.check_tnl_key = (key && !strcmp(key, "flow"))
3789 || (in_key && !strcmp(in_key, "flow"));
3791 smap_destroy(&netdev_args);
3793 s.mpid = *cfg->cfm_mpid;
3794 s.interval = smap_get_int(&iface->cfg->other_config, "cfm_interval", 0);
3795 cfm_ccm_vlan = smap_get(&iface->cfg->other_config, "cfm_ccm_vlan");
3796 s.ccm_pcp = smap_get_int(&iface->cfg->other_config, "cfm_ccm_pcp", 0);
3798 if (s.interval <= 0) {
3802 if (!cfm_ccm_vlan) {
3804 } else if (!strcasecmp("random", cfm_ccm_vlan)) {
3805 s.ccm_vlan = CFM_RANDOM_VLAN;
3807 s.ccm_vlan = atoi(cfm_ccm_vlan);
3808 if (s.ccm_vlan == CFM_RANDOM_VLAN) {
3813 s.extended = smap_get_bool(&iface->cfg->other_config, "cfm_extended",
3815 s.demand = smap_get_bool(&iface->cfg->other_config, "cfm_demand", false);
3817 opstate_str = smap_get(&iface->cfg->other_config, "cfm_opstate");
3818 s.opup = !opstate_str || !strcasecmp("up", opstate_str);
3820 ofproto_port_set_cfm(iface->port->bridge->ofproto, iface->ofp_port, &s);
3823 /* Returns true if 'iface' is synthetic, that is, if we constructed it locally
3824 * instead of obtaining it from the database. */
3826 iface_is_synthetic(const struct iface *iface)
3828 return ovsdb_idl_row_is_synthetic(&iface->cfg->header_);
3832 iface_validate_ofport__(size_t n, int64_t *ofport)
3834 return (n && *ofport >= 1 && *ofport < ofp_to_u16(OFPP_MAX)
3835 ? u16_to_ofp(*ofport)
3840 iface_get_requested_ofp_port(const struct ovsrec_interface *cfg)
3842 return iface_validate_ofport__(cfg->n_ofport_request, cfg->ofport_request);
3846 iface_pick_ofport(const struct ovsrec_interface *cfg)
3848 ofp_port_t requested_ofport = iface_get_requested_ofp_port(cfg);
3849 return (requested_ofport != OFPP_NONE
3851 : iface_validate_ofport__(cfg->n_ofport, cfg->ofport));
3854 /* Port mirroring. */
3856 static struct mirror *
3857 mirror_find_by_uuid(struct bridge *br, const struct uuid *uuid)
3861 HMAP_FOR_EACH_IN_BUCKET (m, hmap_node, uuid_hash(uuid), &br->mirrors) {
3862 if (uuid_equals(uuid, &m->uuid)) {
3870 bridge_configure_mirrors(struct bridge *br)
3872 const struct ovsdb_datum *mc;
3873 unsigned long *flood_vlans;
3874 struct mirror *m, *next;
3877 /* Get rid of deleted mirrors. */
3878 mc = ovsrec_bridge_get_mirrors(br->cfg, OVSDB_TYPE_UUID);
3879 HMAP_FOR_EACH_SAFE (m, next, hmap_node, &br->mirrors) {
3880 union ovsdb_atom atom;
3882 atom.uuid = m->uuid;
3883 if (ovsdb_datum_find_key(mc, &atom, OVSDB_TYPE_UUID) == UINT_MAX) {
3888 /* Add new mirrors and reconfigure existing ones. */
3889 for (i = 0; i < br->cfg->n_mirrors; i++) {
3890 const struct ovsrec_mirror *cfg = br->cfg->mirrors[i];
3891 struct mirror *m = mirror_find_by_uuid(br, &cfg->header_.uuid);
3893 m = mirror_create(br, cfg);
3896 if (!mirror_configure(m)) {
3901 /* Update flooded vlans (for RSPAN). */
3902 flood_vlans = vlan_bitmap_from_array(br->cfg->flood_vlans,
3903 br->cfg->n_flood_vlans);
3904 ofproto_set_flood_vlans(br->ofproto, flood_vlans);
3905 bitmap_free(flood_vlans);
3908 static struct mirror *
3909 mirror_create(struct bridge *br, const struct ovsrec_mirror *cfg)
3913 m = xzalloc(sizeof *m);
3914 m->uuid = cfg->header_.uuid;
3915 hmap_insert(&br->mirrors, &m->hmap_node, uuid_hash(&m->uuid));
3917 m->name = xstrdup(cfg->name);
3923 mirror_destroy(struct mirror *m)
3926 struct bridge *br = m->bridge;
3929 ofproto_mirror_unregister(br->ofproto, m);
3932 hmap_remove(&br->mirrors, &m->hmap_node);
3939 mirror_collect_ports(struct mirror *m,
3940 struct ovsrec_port **in_ports, int n_in_ports,
3941 void ***out_portsp, size_t *n_out_portsp)
3943 void **out_ports = xmalloc(n_in_ports * sizeof *out_ports);
3944 size_t n_out_ports = 0;
3947 for (i = 0; i < n_in_ports; i++) {
3948 const char *name = in_ports[i]->name;
3949 struct port *port = port_lookup(m->bridge, name);
3951 out_ports[n_out_ports++] = port;
3953 VLOG_WARN("bridge %s: mirror %s cannot match on nonexistent "
3954 "port %s", m->bridge->name, m->name, name);
3957 *out_portsp = out_ports;
3958 *n_out_portsp = n_out_ports;
3962 mirror_configure(struct mirror *m)
3964 const struct ovsrec_mirror *cfg = m->cfg;
3965 struct ofproto_mirror_settings s;
3968 if (strcmp(cfg->name, m->name)) {
3970 m->name = xstrdup(cfg->name);
3974 /* Get output port or VLAN. */
3975 if (cfg->output_port) {
3976 s.out_bundle = port_lookup(m->bridge, cfg->output_port->name);
3977 if (!s.out_bundle) {
3978 VLOG_ERR("bridge %s: mirror %s outputs to port not on bridge",
3979 m->bridge->name, m->name);
3982 s.out_vlan = UINT16_MAX;
3984 if (cfg->output_vlan) {
3985 VLOG_ERR("bridge %s: mirror %s specifies both output port and "
3986 "output vlan; ignoring output vlan",
3987 m->bridge->name, m->name);
3989 } else if (cfg->output_vlan) {
3990 /* The database should prevent invalid VLAN values. */
3991 s.out_bundle = NULL;
3992 s.out_vlan = *cfg->output_vlan;
3994 VLOG_ERR("bridge %s: mirror %s does not specify output; ignoring",
3995 m->bridge->name, m->name);
3999 /* Get port selection. */
4000 if (cfg->select_all) {
4001 size_t n_ports = hmap_count(&m->bridge->ports);
4002 void **ports = xmalloc(n_ports * sizeof *ports);
4007 HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) {
4017 /* Get ports, dropping ports that don't exist.
4018 * The IDL ensures that there are no duplicates. */
4019 mirror_collect_ports(m, cfg->select_src_port, cfg->n_select_src_port,
4020 &s.srcs, &s.n_srcs);
4021 mirror_collect_ports(m, cfg->select_dst_port, cfg->n_select_dst_port,
4022 &s.dsts, &s.n_dsts);
4025 /* Get VLAN selection. */
4026 s.src_vlans = vlan_bitmap_from_array(cfg->select_vlan, cfg->n_select_vlan);
4029 ofproto_mirror_register(m->bridge->ofproto, m, &s);
4032 if (s.srcs != s.dsts) {
4041 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
4043 * This is deprecated. It is only for compatibility with broken device drivers
4044 * in old versions of Linux that do not properly support VLANs when VLAN
4045 * devices are not used. When broken device drivers are no longer in
4046 * widespread use, we will delete these interfaces. */
4048 static struct ovsrec_port **recs;
4049 static size_t n_recs, allocated_recs;
4051 /* Adds 'rec' to a list of recs that have to be destroyed when the VLAN
4052 * splinters are reconfigured. */
4054 register_rec(struct ovsrec_port *rec)
4056 if (n_recs >= allocated_recs) {
4057 recs = x2nrealloc(recs, &allocated_recs, sizeof *recs);
4059 recs[n_recs++] = rec;
4062 /* Frees all of the ports registered with register_reg(). */
4064 free_registered_recs(void)
4068 for (i = 0; i < n_recs; i++) {
4069 struct ovsrec_port *port = recs[i];
4072 for (j = 0; j < port->n_interfaces; j++) {
4073 struct ovsrec_interface *iface = port->interfaces[j];
4078 smap_destroy(&port->other_config);
4079 free(port->interfaces);
4087 /* Returns true if VLAN splinters are enabled on 'iface_cfg', false
4090 vlan_splinters_is_enabled(const struct ovsrec_interface *iface_cfg)
4092 return smap_get_bool(&iface_cfg->other_config, "enable-vlan-splinters",
4096 /* Figures out the set of VLANs that are in use for the purpose of VLAN
4099 * If VLAN splinters are enabled on at least one interface and any VLANs are in
4100 * use, returns a 4096-bit bitmap with a 1-bit for each in-use VLAN (bits 0 and
4101 * 4095 will not be set). The caller is responsible for freeing the bitmap,
4104 * If VLANs splinters are not enabled on any interface or if no VLANs are in
4105 * use, returns NULL.
4107 * Updates 'vlan_splinters_enabled_anywhere'. */
4108 static unsigned long int *
4109 collect_splinter_vlans(const struct ovsrec_open_vswitch *ovs_cfg)
4111 unsigned long int *splinter_vlans;
4112 struct sset splinter_ifaces;
4113 const char *real_dev_name;
4114 struct shash *real_devs;
4115 struct shash_node *node;
4119 /* Free space allocated for synthesized ports and interfaces, since we're
4120 * in the process of reconstructing all of them. */
4121 free_registered_recs();
4123 splinter_vlans = bitmap_allocate(4096);
4124 sset_init(&splinter_ifaces);
4125 vlan_splinters_enabled_anywhere = false;
4126 for (i = 0; i < ovs_cfg->n_bridges; i++) {
4127 struct ovsrec_bridge *br_cfg = ovs_cfg->bridges[i];
4130 for (j = 0; j < br_cfg->n_ports; j++) {
4131 struct ovsrec_port *port_cfg = br_cfg->ports[j];
4134 for (k = 0; k < port_cfg->n_interfaces; k++) {
4135 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[k];
4137 if (vlan_splinters_is_enabled(iface_cfg)) {
4138 vlan_splinters_enabled_anywhere = true;
4139 sset_add(&splinter_ifaces, iface_cfg->name);
4140 vlan_bitmap_from_array__(port_cfg->trunks,
4146 if (port_cfg->tag && *port_cfg->tag > 0 && *port_cfg->tag < 4095) {
4147 bitmap_set1(splinter_vlans, *port_cfg->tag);
4152 if (!vlan_splinters_enabled_anywhere) {
4153 free(splinter_vlans);
4154 sset_destroy(&splinter_ifaces);
4158 HMAP_FOR_EACH (br, node, &all_bridges) {
4160 ofproto_get_vlan_usage(br->ofproto, splinter_vlans);
4164 /* Don't allow VLANs 0 or 4095 to be splintered. VLAN 0 should appear on
4165 * the real device. VLAN 4095 is reserved and Linux doesn't allow a VLAN
4166 * device to be created for it. */
4167 bitmap_set0(splinter_vlans, 0);
4168 bitmap_set0(splinter_vlans, 4095);
4170 /* Delete all VLAN devices that we don't need. */
4172 real_devs = vlandev_get_real_devs();
4173 SHASH_FOR_EACH (node, real_devs) {
4174 const struct vlan_real_dev *real_dev = node->data;
4175 const struct vlan_dev *vlan_dev;
4176 bool real_dev_has_splinters;
4178 real_dev_has_splinters = sset_contains(&splinter_ifaces,
4180 HMAP_FOR_EACH (vlan_dev, hmap_node, &real_dev->vlan_devs) {
4181 if (!real_dev_has_splinters
4182 || !bitmap_is_set(splinter_vlans, vlan_dev->vid)) {
4183 struct netdev *netdev;
4185 if (!netdev_open(vlan_dev->name, "system", &netdev)) {
4186 if (!netdev_get_in4(netdev, NULL, NULL) ||
4187 !netdev_get_in6(netdev, NULL)) {
4188 /* It has an IP address configured, so we don't own
4189 * it. Don't delete it. */
4191 vlandev_del(vlan_dev->name);
4193 netdev_close(netdev);
4200 /* Add all VLAN devices that we need. */
4201 SSET_FOR_EACH (real_dev_name, &splinter_ifaces) {
4204 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
4205 if (!vlandev_get_name(real_dev_name, vid)) {
4206 vlandev_add(real_dev_name, vid);
4213 sset_destroy(&splinter_ifaces);
4215 if (bitmap_scan(splinter_vlans, 1, 0, 4096) >= 4096) {
4216 free(splinter_vlans);
4219 return splinter_vlans;
4222 /* Pushes the configure of VLAN splinter port 'port' (e.g. eth0.9) down to
4225 configure_splinter_port(struct port *port)
4227 struct ofproto *ofproto = port->bridge->ofproto;
4228 ofp_port_t realdev_ofp_port;
4229 const char *realdev_name;
4230 struct iface *vlandev, *realdev;
4232 ofproto_bundle_unregister(port->bridge->ofproto, port);
4234 vlandev = CONTAINER_OF(list_front(&port->ifaces), struct iface,
4237 realdev_name = smap_get(&port->cfg->other_config, "realdev");
4238 realdev = iface_lookup(port->bridge, realdev_name);
4239 realdev_ofp_port = realdev ? realdev->ofp_port : 0;
4241 ofproto_port_set_realdev(ofproto, vlandev->ofp_port, realdev_ofp_port,
4245 static struct ovsrec_port *
4246 synthesize_splinter_port(const char *real_dev_name,
4247 const char *vlan_dev_name, int vid)
4249 struct ovsrec_interface *iface;
4250 struct ovsrec_port *port;
4252 iface = xmalloc(sizeof *iface);
4253 ovsrec_interface_init(iface);
4254 iface->name = xstrdup(vlan_dev_name);
4255 iface->type = "system";
4257 port = xmalloc(sizeof *port);
4258 ovsrec_port_init(port);
4259 port->interfaces = xmemdup(&iface, sizeof iface);
4260 port->n_interfaces = 1;
4261 port->name = xstrdup(vlan_dev_name);
4262 port->vlan_mode = "splinter";
4263 port->tag = xmalloc(sizeof *port->tag);
4266 smap_add(&port->other_config, "realdev", real_dev_name);
4272 /* For each interface with 'br' that has VLAN splinters enabled, adds a
4273 * corresponding ovsrec_port to 'ports' for each splinter VLAN marked with a
4274 * 1-bit in the 'splinter_vlans' bitmap. */
4276 add_vlan_splinter_ports(struct bridge *br,
4277 const unsigned long int *splinter_vlans,
4278 struct shash *ports)
4282 /* We iterate through 'br->cfg->ports' instead of 'ports' here because
4283 * we're modifying 'ports'. */
4284 for (i = 0; i < br->cfg->n_ports; i++) {
4285 const char *name = br->cfg->ports[i]->name;
4286 struct ovsrec_port *port_cfg = shash_find_data(ports, name);
4289 for (j = 0; j < port_cfg->n_interfaces; j++) {
4290 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[j];
4292 if (vlan_splinters_is_enabled(iface_cfg)) {
4293 const char *real_dev_name;
4296 real_dev_name = iface_cfg->name;
4297 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
4298 const char *vlan_dev_name;
4300 vlan_dev_name = vlandev_get_name(real_dev_name, vid);
4302 && !shash_find(ports, vlan_dev_name)) {
4303 shash_add(ports, vlan_dev_name,
4304 synthesize_splinter_port(
4305 real_dev_name, vlan_dev_name, vid));
4314 mirror_refresh_stats(struct mirror *m)
4316 struct ofproto *ofproto = m->bridge->ofproto;
4317 uint64_t tx_packets, tx_bytes;
4320 size_t stat_cnt = 0;
4322 if (ofproto_mirror_get_stats(ofproto, m, &tx_packets, &tx_bytes)) {
4323 ovsrec_mirror_set_statistics(m->cfg, NULL, NULL, 0);
4327 if (tx_packets != UINT64_MAX) {
4328 keys[stat_cnt] = "tx_packets";
4329 values[stat_cnt] = tx_packets;
4332 if (tx_bytes != UINT64_MAX) {
4333 keys[stat_cnt] = "tx_bytes";
4334 values[stat_cnt] = tx_bytes;
4338 ovsrec_mirror_set_statistics(m->cfg, keys, values, stat_cnt);