1 /* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 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"
41 #include "ofp-print.h"
44 #include "ofproto/bond.h"
45 #include "ofproto/ofproto.h"
47 #include "poll-loop.h"
52 #include "socket-util.h"
54 #include "stream-ssl.h"
56 #include "system-stats.h"
61 #include "lib/vswitch-idl.h"
62 #include "xenserver.h"
63 #include "openvswitch/vlog.h"
64 #include "sflow_api.h"
65 #include "vlan-bitmap.h"
68 VLOG_DEFINE_THIS_MODULE(bridge);
70 COVERAGE_DEFINE(bridge_reconfigure);
73 /* These members are always valid.
75 * They are immutable: they never change between iface_create() and
77 struct ovs_list port_elem; /* Element in struct port's "ifaces" list. */
78 struct hmap_node name_node; /* In struct bridge's "iface_by_name" hmap. */
79 struct hmap_node ofp_port_node; /* In struct bridge's "ifaces" hmap. */
80 struct port *port; /* Containing port. */
81 char *name; /* Host network device name. */
82 struct netdev *netdev; /* Network device. */
83 ofp_port_t ofp_port; /* OpenFlow port number. */
86 /* These members are valid only within bridge_reconfigure(). */
87 const char *type; /* Usually same as cfg->type. */
88 const struct ovsrec_interface *cfg;
92 struct uuid uuid; /* UUID of this "mirror" record in database. */
93 struct hmap_node hmap_node; /* In struct bridge's "mirrors" hmap. */
94 struct bridge *bridge;
96 const struct ovsrec_mirror *cfg;
100 struct hmap_node hmap_node; /* Element in struct bridge's "ports" hmap. */
101 struct bridge *bridge;
104 const struct ovsrec_port *cfg;
106 /* An ordinary bridge port has 1 interface.
107 * A bridge port for bonding has at least 2 interfaces. */
108 struct ovs_list ifaces; /* List of "struct iface"s. */
112 struct hmap_node node; /* In 'all_bridges'. */
113 char *name; /* User-specified arbitrary name. */
114 char *type; /* Datapath type. */
115 uint8_t ea[ETH_ADDR_LEN]; /* Bridge Ethernet Address. */
116 uint8_t default_ea[ETH_ADDR_LEN]; /* Default MAC. */
117 const struct ovsrec_bridge *cfg;
119 /* OpenFlow switch processing. */
120 struct ofproto *ofproto; /* OpenFlow switch. */
123 struct hmap ports; /* "struct port"s indexed by name. */
124 struct hmap ifaces; /* "struct iface"s indexed by ofp_port. */
125 struct hmap iface_by_name; /* "struct iface"s indexed by name. */
127 /* Port mirroring. */
128 struct hmap mirrors; /* "struct mirror" indexed by UUID. */
130 /* Used during reconfiguration. */
131 struct shash wanted_ports;
133 /* Synthetic local port if necessary. */
134 struct ovsrec_port synth_local_port;
135 struct ovsrec_interface synth_local_iface;
136 struct ovsrec_interface *synth_local_ifacep;
139 /* All bridges, indexed by name. */
140 static struct hmap all_bridges = HMAP_INITIALIZER(&all_bridges);
142 /* OVSDB IDL used to obtain configuration. */
143 static struct ovsdb_idl *idl;
145 /* We want to complete daemonization, fully detaching from our parent process,
146 * only after we have completed our initial configuration, committed our state
147 * to the database, and received confirmation back from the database server
148 * that it applied the commit. This allows our parent process to know that,
149 * post-detach, ephemeral fields such as datapath-id and ofport are very likely
150 * to have already been filled in. (It is only "very likely" rather than
151 * certain because there is always a slim possibility that the transaction will
152 * fail or that some other client has added new bridges, ports, etc. while
153 * ovs-vswitchd was configuring using an old configuration.)
155 * We only need to do this once for our initial configuration at startup, so
156 * 'initial_config_done' tracks whether we've already done it. While we are
157 * waiting for a response to our commit, 'daemonize_txn' tracks the transaction
158 * itself and is otherwise NULL. */
159 static bool initial_config_done;
160 static struct ovsdb_idl_txn *daemonize_txn;
162 /* Most recently processed IDL sequence number. */
163 static unsigned int idl_seqno;
165 /* Track changes to port connectivity. */
166 static uint64_t connectivity_seqno = LLONG_MIN;
168 /* Status update to database.
170 * Some information in the database must be kept as up-to-date as possible to
171 * allow controllers to respond rapidly to network outages. Those status are
172 * updated via the 'status_txn'.
174 * We use the global connectivity sequence number to detect the status change.
175 * Also, to prevent the status update from sending too much to the database,
176 * we check the return status of each update transaction and do not start new
177 * update if the previous transaction status is 'TXN_INCOMPLETE'.
179 * 'statux_txn' is NULL if there is no ongoing status update.
181 * If the previous database transaction was failed (is not 'TXN_SUCCESS',
182 * 'TXN_UNCHANGED' or 'TXN_INCOMPLETE'), 'status_txn_try_again' is set to true,
183 * which will cause the main thread wake up soon and retry the status update.
185 static struct ovsdb_idl_txn *status_txn;
186 static bool status_txn_try_again;
188 /* When the status update transaction returns 'TXN_INCOMPLETE', should register a
189 * timeout in 'STATUS_CHECK_AGAIN_MSEC' to check again. */
190 #define STATUS_CHECK_AGAIN_MSEC 100
192 /* Each time this timer expires, the bridge fetches interface and mirror
193 * statistics and pushes them into the database. */
194 static int stats_timer_interval;
195 static long long int stats_timer = LLONG_MIN;
197 /* In some datapaths, creating and destroying OpenFlow ports can be extremely
198 * expensive. This can cause bridge_reconfigure() to take a long time during
199 * which no other work can be done. To deal with this problem, we limit port
200 * adds and deletions to a window of OFP_PORT_ACTION_WINDOW milliseconds per
201 * call to bridge_reconfigure(). If there is more work to do after the limit
202 * is reached, 'need_reconfigure', is flagged and it's done on the next loop.
203 * This allows the rest of the code to catch up on important things like
204 * forwarding packets. */
205 #define OFP_PORT_ACTION_WINDOW 10
207 static void add_del_bridges(const struct ovsrec_open_vswitch *);
208 static void bridge_run__(void);
209 static void bridge_create(const struct ovsrec_bridge *);
210 static void bridge_destroy(struct bridge *);
211 static struct bridge *bridge_lookup(const char *name);
212 static unixctl_cb_func bridge_unixctl_dump_flows;
213 static unixctl_cb_func bridge_unixctl_reconnect;
214 static size_t bridge_get_controllers(const struct bridge *br,
215 struct ovsrec_controller ***controllersp);
216 static void bridge_collect_wanted_ports(struct bridge *,
217 const unsigned long *splinter_vlans,
218 struct shash *wanted_ports);
219 static void bridge_delete_ofprotos(void);
220 static void bridge_delete_or_reconfigure_ports(struct bridge *);
221 static void bridge_del_ports(struct bridge *,
222 const struct shash *wanted_ports);
223 static void bridge_add_ports(struct bridge *,
224 const struct shash *wanted_ports);
226 static void bridge_configure_datapath_id(struct bridge *);
227 static void bridge_configure_netflow(struct bridge *);
228 static void bridge_configure_forward_bpdu(struct bridge *);
229 static void bridge_configure_mac_table(struct bridge *);
230 static void bridge_configure_mcast_snooping(struct bridge *);
231 static void bridge_configure_sflow(struct bridge *, int *sflow_bridge_number);
232 static void bridge_configure_ipfix(struct bridge *);
233 static void bridge_configure_stp(struct bridge *);
234 static void bridge_configure_rstp(struct bridge *);
235 static void bridge_configure_tables(struct bridge *);
236 static void bridge_configure_dp_desc(struct bridge *);
237 static void bridge_configure_remotes(struct bridge *,
238 const struct sockaddr_in *managers,
240 static void bridge_pick_local_hw_addr(struct bridge *,
241 uint8_t ea[ETH_ADDR_LEN],
242 struct iface **hw_addr_iface);
243 static uint64_t bridge_pick_datapath_id(struct bridge *,
244 const uint8_t bridge_ea[ETH_ADDR_LEN],
245 struct iface *hw_addr_iface);
246 static uint64_t dpid_from_hash(const void *, size_t nbytes);
247 static bool bridge_has_bond_fake_iface(const struct bridge *,
249 static bool port_is_bond_fake_iface(const struct port *);
251 static unixctl_cb_func qos_unixctl_show;
253 static struct port *port_create(struct bridge *, const struct ovsrec_port *);
254 static void port_del_ifaces(struct port *);
255 static void port_destroy(struct port *);
256 static struct port *port_lookup(const struct bridge *, const char *name);
257 static void port_configure(struct port *);
258 static struct lacp_settings *port_configure_lacp(struct port *,
259 struct lacp_settings *);
260 static void port_configure_bond(struct port *, struct bond_settings *);
261 static bool port_is_synthetic(const struct port *);
263 static void reconfigure_system_stats(const struct ovsrec_open_vswitch *);
264 static void run_system_stats(void);
266 static void bridge_configure_mirrors(struct bridge *);
267 static struct mirror *mirror_create(struct bridge *,
268 const struct ovsrec_mirror *);
269 static void mirror_destroy(struct mirror *);
270 static bool mirror_configure(struct mirror *);
271 static void mirror_refresh_stats(struct mirror *);
273 static void iface_configure_lacp(struct iface *, struct lacp_slave_settings *);
274 static bool iface_create(struct bridge *, const struct ovsrec_interface *,
275 const struct ovsrec_port *);
276 static bool iface_is_internal(const struct ovsrec_interface *iface,
277 const struct ovsrec_bridge *br);
278 static const char *iface_get_type(const struct ovsrec_interface *,
279 const struct ovsrec_bridge *);
280 static void iface_destroy(struct iface *);
281 static void iface_destroy__(struct iface *);
282 static struct iface *iface_lookup(const struct bridge *, const char *name);
283 static struct iface *iface_find(const char *name);
284 static struct iface *iface_from_ofp_port(const struct bridge *,
285 ofp_port_t ofp_port);
286 static void iface_set_mac(const struct bridge *, const struct port *, struct iface *);
287 static void iface_set_ofport(const struct ovsrec_interface *, ofp_port_t ofport);
288 static void iface_clear_db_record(const struct ovsrec_interface *if_cfg, char *errp);
289 static void iface_configure_qos(struct iface *, const struct ovsrec_qos *);
290 static void iface_configure_cfm(struct iface *);
291 static void iface_refresh_cfm_stats(struct iface *);
292 static void iface_refresh_stats(struct iface *);
293 static void iface_refresh_netdev_status(struct iface *);
294 static void iface_refresh_ofproto_status(struct iface *);
295 static bool iface_is_synthetic(const struct iface *);
296 static ofp_port_t iface_get_requested_ofp_port(
297 const struct ovsrec_interface *);
298 static ofp_port_t iface_pick_ofport(const struct ovsrec_interface *);
300 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
302 * This is deprecated. It is only for compatibility with broken device drivers
303 * in old versions of Linux that do not properly support VLANs when VLAN
304 * devices are not used. When broken device drivers are no longer in
305 * widespread use, we will delete these interfaces. */
307 /* True if VLAN splinters are enabled on any interface, false otherwise.*/
308 static bool vlan_splinters_enabled_anywhere;
310 static bool vlan_splinters_is_enabled(const struct ovsrec_interface *);
311 static unsigned long int *collect_splinter_vlans(
312 const struct ovsrec_open_vswitch *);
313 static void configure_splinter_port(struct port *);
314 static void add_vlan_splinter_ports(struct bridge *,
315 const unsigned long int *splinter_vlans,
316 struct shash *ports);
319 bridge_init_ofproto(const struct ovsrec_open_vswitch *cfg)
321 struct shash iface_hints;
322 static bool initialized = false;
329 shash_init(&iface_hints);
332 for (i = 0; i < cfg->n_bridges; i++) {
333 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
336 for (j = 0; j < br_cfg->n_ports; j++) {
337 struct ovsrec_port *port_cfg = br_cfg->ports[j];
340 for (k = 0; k < port_cfg->n_interfaces; k++) {
341 struct ovsrec_interface *if_cfg = port_cfg->interfaces[k];
342 struct iface_hint *iface_hint;
344 iface_hint = xmalloc(sizeof *iface_hint);
345 iface_hint->br_name = br_cfg->name;
346 iface_hint->br_type = br_cfg->datapath_type;
347 iface_hint->ofp_port = iface_pick_ofport(if_cfg);
349 shash_add(&iface_hints, if_cfg->name, iface_hint);
355 ofproto_init(&iface_hints);
357 shash_destroy_free_data(&iface_hints);
361 /* Public functions. */
363 /* Initializes the bridge module, configuring it to obtain its configuration
364 * from an OVSDB server accessed over 'remote', which should be a string in a
365 * form acceptable to ovsdb_idl_create(). */
367 bridge_init(const char *remote)
369 /* Create connection to database. */
370 idl = ovsdb_idl_create(remote, &ovsrec_idl_class, true, true);
371 idl_seqno = ovsdb_idl_get_seqno(idl);
372 ovsdb_idl_set_lock(idl, "ovs_vswitchd");
373 ovsdb_idl_verify_write_only(idl);
375 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_cur_cfg);
376 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_statistics);
377 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_external_ids);
378 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_ovs_version);
379 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_db_version);
380 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_type);
381 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_version);
383 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_datapath_id);
384 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_datapath_version);
385 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_status);
386 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_rstp_status);
387 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_stp_enable);
388 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_rstp_enable);
389 ovsdb_idl_omit(idl, &ovsrec_bridge_col_external_ids);
391 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_status);
392 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_rstp_status);
393 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_rstp_statistics);
394 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_statistics);
395 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_bond_active_slave);
396 ovsdb_idl_omit(idl, &ovsrec_port_col_external_ids);
398 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_admin_state);
399 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_duplex);
400 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_speed);
401 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_state);
402 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_resets);
403 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mac_in_use);
404 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ifindex);
405 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mtu);
406 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ofport);
407 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_statistics);
408 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_status);
409 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault);
410 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault_status);
411 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_remote_mpids);
412 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_flap_count);
413 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_health);
414 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_remote_opstate);
415 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_bfd_status);
416 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_lacp_current);
417 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_error);
418 ovsdb_idl_omit(idl, &ovsrec_interface_col_external_ids);
420 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_is_connected);
421 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_role);
422 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_status);
423 ovsdb_idl_omit(idl, &ovsrec_controller_col_external_ids);
425 ovsdb_idl_omit(idl, &ovsrec_qos_col_external_ids);
427 ovsdb_idl_omit(idl, &ovsrec_queue_col_external_ids);
429 ovsdb_idl_omit(idl, &ovsrec_mirror_col_external_ids);
430 ovsdb_idl_omit_alert(idl, &ovsrec_mirror_col_statistics);
432 ovsdb_idl_omit(idl, &ovsrec_netflow_col_external_ids);
433 ovsdb_idl_omit(idl, &ovsrec_sflow_col_external_ids);
434 ovsdb_idl_omit(idl, &ovsrec_ipfix_col_external_ids);
435 ovsdb_idl_omit(idl, &ovsrec_flow_sample_collector_set_col_external_ids);
437 ovsdb_idl_omit(idl, &ovsrec_manager_col_external_ids);
438 ovsdb_idl_omit(idl, &ovsrec_manager_col_inactivity_probe);
439 ovsdb_idl_omit(idl, &ovsrec_manager_col_is_connected);
440 ovsdb_idl_omit(idl, &ovsrec_manager_col_max_backoff);
441 ovsdb_idl_omit(idl, &ovsrec_manager_col_status);
443 ovsdb_idl_omit(idl, &ovsrec_ssl_col_external_ids);
445 /* Register unixctl commands. */
446 unixctl_command_register("qos/show", "interface", 1, 1,
447 qos_unixctl_show, NULL);
448 unixctl_command_register("bridge/dump-flows", "bridge", 1, 1,
449 bridge_unixctl_dump_flows, NULL);
450 unixctl_command_register("bridge/reconnect", "[bridge]", 0, 1,
451 bridge_unixctl_reconnect, NULL);
463 struct bridge *br, *next_br;
465 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
468 ovsdb_idl_destroy(idl);
471 /* Looks at the list of managers in 'ovs_cfg' and extracts their remote IP
472 * addresses and ports into '*managersp' and '*n_managersp'. The caller is
473 * responsible for freeing '*managersp' (with free()).
475 * You may be asking yourself "why does ovs-vswitchd care?", because
476 * ovsdb-server is responsible for connecting to the managers, and ovs-vswitchd
477 * should not be and in fact is not directly involved in that. But
478 * ovs-vswitchd needs to make sure that ovsdb-server can reach the managers, so
479 * it has to tell in-band control where the managers are to enable that.
480 * (Thus, only managers connected in-band are collected.)
483 collect_in_band_managers(const struct ovsrec_open_vswitch *ovs_cfg,
484 struct sockaddr_in **managersp, size_t *n_managersp)
486 struct sockaddr_in *managers = NULL;
487 size_t n_managers = 0;
491 /* Collect all of the potential targets from the "targets" columns of the
492 * rows pointed to by "manager_options", excluding any that are
495 for (i = 0; i < ovs_cfg->n_manager_options; i++) {
496 struct ovsrec_manager *m = ovs_cfg->manager_options[i];
498 if (m->connection_mode && !strcmp(m->connection_mode, "out-of-band")) {
499 sset_find_and_delete(&targets, m->target);
501 sset_add(&targets, m->target);
505 /* Now extract the targets' IP addresses. */
506 if (!sset_is_empty(&targets)) {
509 managers = xmalloc(sset_count(&targets) * sizeof *managers);
510 SSET_FOR_EACH (target, &targets) {
512 struct sockaddr_storage ss;
513 struct sockaddr_in in;
516 if (stream_parse_target_with_default_port(target, OVSDB_OLD_PORT,
518 && sa.ss.ss_family == AF_INET) {
519 managers[n_managers++] = sa.in;
523 sset_destroy(&targets);
525 *managersp = managers;
526 *n_managersp = n_managers;
530 bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
532 unsigned long int *splinter_vlans;
533 struct sockaddr_in *managers;
534 struct bridge *br, *next;
535 int sflow_bridge_number;
538 COVERAGE_INC(bridge_reconfigure);
540 ofproto_set_flow_limit(smap_get_int(&ovs_cfg->other_config, "flow-limit",
541 OFPROTO_FLOW_LIMIT_DEFAULT));
542 ofproto_set_max_idle(smap_get_int(&ovs_cfg->other_config, "max-idle",
543 OFPROTO_MAX_IDLE_DEFAULT));
544 ofproto_set_n_dpdk_rxqs(smap_get_int(&ovs_cfg->other_config,
546 ofproto_set_cpu_mask(smap_get(&ovs_cfg->other_config, "pmd-cpu-mask"));
549 smap_get_int(&ovs_cfg->other_config, "n-handler-threads", 0),
550 smap_get_int(&ovs_cfg->other_config, "n-revalidator-threads", 0));
552 /* Destroy "struct bridge"s, "struct port"s, and "struct iface"s according
553 * to 'ovs_cfg', with only very minimal configuration otherwise.
555 * This is mostly an update to bridge data structures. Nothing is pushed
556 * down to ofproto or lower layers. */
557 add_del_bridges(ovs_cfg);
558 splinter_vlans = collect_splinter_vlans(ovs_cfg);
559 HMAP_FOR_EACH (br, node, &all_bridges) {
560 bridge_collect_wanted_ports(br, splinter_vlans, &br->wanted_ports);
561 bridge_del_ports(br, &br->wanted_ports);
563 free(splinter_vlans);
565 /* Start pushing configuration changes down to the ofproto layer:
567 * - Delete ofprotos that are no longer configured.
569 * - Delete ports that are no longer configured.
571 * - Reconfigure existing ports to their desired configurations, or
572 * delete them if not possible.
574 * We have to do all the deletions before we can do any additions, because
575 * the ports to be added might require resources that will be freed up by
576 * deletions (they might especially overlap in name). */
577 bridge_delete_ofprotos();
578 HMAP_FOR_EACH (br, node, &all_bridges) {
580 bridge_delete_or_reconfigure_ports(br);
584 /* Finish pushing configuration changes to the ofproto layer:
586 * - Create ofprotos that are missing.
588 * - Add ports that are missing. */
589 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
593 error = ofproto_create(br->name, br->type, &br->ofproto);
595 VLOG_ERR("failed to create bridge %s: %s", br->name,
596 ovs_strerror(error));
597 shash_destroy(&br->wanted_ports);
600 /* Trigger storing datapath version. */
601 seq_change(connectivity_seq_get());
605 HMAP_FOR_EACH (br, node, &all_bridges) {
606 bridge_add_ports(br, &br->wanted_ports);
607 shash_destroy(&br->wanted_ports);
610 reconfigure_system_stats(ovs_cfg);
612 /* Complete the configuration. */
613 sflow_bridge_number = 0;
614 collect_in_band_managers(ovs_cfg, &managers, &n_managers);
615 HMAP_FOR_EACH (br, node, &all_bridges) {
618 /* We need the datapath ID early to allow LACP ports to use it as the
619 * default system ID. */
620 bridge_configure_datapath_id(br);
622 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
625 port_configure(port);
627 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
628 iface_set_ofport(iface->cfg, iface->ofp_port);
629 /* Clear eventual previous errors */
630 ovsrec_interface_set_error(iface->cfg, NULL);
631 iface_configure_cfm(iface);
632 iface_configure_qos(iface, port->cfg->qos);
633 iface_set_mac(br, port, iface);
634 ofproto_port_set_bfd(br->ofproto, iface->ofp_port,
638 bridge_configure_mirrors(br);
639 bridge_configure_forward_bpdu(br);
640 bridge_configure_mac_table(br);
641 bridge_configure_mcast_snooping(br);
642 bridge_configure_remotes(br, managers, n_managers);
643 bridge_configure_netflow(br);
644 bridge_configure_sflow(br, &sflow_bridge_number);
645 bridge_configure_ipfix(br);
646 bridge_configure_stp(br);
647 bridge_configure_rstp(br);
648 bridge_configure_tables(br);
649 bridge_configure_dp_desc(br);
653 /* The ofproto-dpif provider does some final reconfiguration in its
654 * ->type_run() function. We have to call it before notifying the database
655 * client that reconfiguration is complete, otherwise there is a very
656 * narrow race window in which e.g. ofproto/trace will not recognize the
657 * new configuration (sometimes this causes unit test failures). */
661 /* Delete ofprotos which aren't configured or have the wrong type. Create
662 * ofprotos which don't exist but need to. */
664 bridge_delete_ofprotos(void)
671 /* Delete ofprotos with no bridge or with the wrong type. */
674 ofproto_enumerate_types(&types);
675 SSET_FOR_EACH (type, &types) {
678 ofproto_enumerate_names(type, &names);
679 SSET_FOR_EACH (name, &names) {
680 br = bridge_lookup(name);
681 if (!br || strcmp(type, br->type)) {
682 ofproto_delete(name, type);
686 sset_destroy(&names);
687 sset_destroy(&types);
691 add_ofp_port(ofp_port_t port, ofp_port_t *ports, size_t *n, size_t *allocated)
693 if (*n >= *allocated) {
694 ports = x2nrealloc(ports, allocated, sizeof *ports);
696 ports[(*n)++] = port;
701 bridge_delete_or_reconfigure_ports(struct bridge *br)
703 struct ofproto_port ofproto_port;
704 struct ofproto_port_dump dump;
706 struct sset ofproto_ports;
707 struct port *port, *port_next;
709 /* List of "ofp_port"s to delete. We make a list instead of deleting them
710 * right away because ofproto implementations aren't necessarily able to
711 * iterate through a changing list of ports in an entirely robust way. */
718 sset_init(&ofproto_ports);
720 /* Main task: Iterate over the ports in 'br->ofproto' and remove the ports
721 * that are not configured in the database. (This commonly happens when
722 * ports have been deleted, e.g. with "ovs-vsctl del-port".)
724 * Side tasks: Reconfigure the ports that are still in 'br'. Delete ports
725 * that have the wrong OpenFlow port number (and arrange to add them back
726 * with the correct OpenFlow port number). */
727 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
728 ofp_port_t requested_ofp_port;
731 sset_add(&ofproto_ports, ofproto_port.name);
733 iface = iface_lookup(br, ofproto_port.name);
735 /* No such iface is configured, so we should delete this
738 * As a corner case exception, keep the port if it's a bond fake
740 if (bridge_has_bond_fake_iface(br, ofproto_port.name)
741 && !strcmp(ofproto_port.type, "internal")) {
747 if (strcmp(ofproto_port.type, iface->type)
748 || netdev_set_config(iface->netdev, &iface->cfg->options, NULL)) {
749 /* The interface is the wrong type or can't be configured.
754 /* If the requested OpenFlow port for 'iface' changed, and it's not
755 * already the correct port, then we might want to temporarily delete
756 * this interface, so we can add it back again with the new OpenFlow
758 requested_ofp_port = iface_get_requested_ofp_port(iface->cfg);
759 if (iface->ofp_port != OFPP_LOCAL &&
760 requested_ofp_port != OFPP_NONE &&
761 requested_ofp_port != iface->ofp_port) {
762 ofp_port_t victim_request;
763 struct iface *victim;
765 /* Check for an existing OpenFlow port currently occupying
766 * 'iface''s requested port number. If there isn't one, then
767 * delete this port. Otherwise we need to consider further. */
768 victim = iface_from_ofp_port(br, requested_ofp_port);
773 /* 'victim' is a port currently using 'iface''s requested port
774 * number. Unless 'victim' specifically requested that port
775 * number, too, then we can delete both 'iface' and 'victim'
776 * temporarily. (We'll add both of them back again later with new
777 * OpenFlow port numbers.)
779 * If 'victim' did request port number 'requested_ofp_port', just
780 * like 'iface', then that's a configuration inconsistency that we
781 * can't resolve. We might as well let it keep its current port
783 victim_request = iface_get_requested_ofp_port(victim->cfg);
784 if (victim_request != requested_ofp_port) {
785 del = add_ofp_port(victim->ofp_port, del, &n, &allocated);
786 iface_destroy(victim);
795 iface_destroy(iface);
796 del = add_ofp_port(ofproto_port.ofp_port, del, &n, &allocated);
798 for (i = 0; i < n; i++) {
799 ofproto_port_del(br->ofproto, del[i]);
803 /* Iterate over this module's idea of interfaces in 'br'. Remove any ports
804 * that we didn't see when we iterated through the datapath, i.e. ports
805 * that disappeared underneath use. This is an unusual situation, but it
806 * can happen in some cases:
808 * - An admin runs a command like "ovs-dpctl del-port" (which is a bad
809 * idea but could happen).
811 * - The port represented a device that disappeared, e.g. a tuntap
812 * device destroyed via "tunctl -d", a physical Ethernet device
813 * whose module was just unloaded via "rmmod", or a virtual NIC for a
814 * VM whose VM was just terminated. */
815 HMAP_FOR_EACH_SAFE (port, port_next, hmap_node, &br->ports) {
816 struct iface *iface, *iface_next;
818 LIST_FOR_EACH_SAFE (iface, iface_next, port_elem, &port->ifaces) {
819 if (!sset_contains(&ofproto_ports, iface->name)) {
820 iface_destroy__(iface);
824 if (list_is_empty(&port->ifaces)) {
828 sset_destroy(&ofproto_ports);
832 bridge_add_ports__(struct bridge *br, const struct shash *wanted_ports,
833 bool with_requested_port)
835 struct shash_node *port_node;
837 SHASH_FOR_EACH (port_node, wanted_ports) {
838 const struct ovsrec_port *port_cfg = port_node->data;
841 for (i = 0; i < port_cfg->n_interfaces; i++) {
842 const struct ovsrec_interface *iface_cfg = port_cfg->interfaces[i];
843 ofp_port_t requested_ofp_port;
845 requested_ofp_port = iface_get_requested_ofp_port(iface_cfg);
846 if ((requested_ofp_port != OFPP_NONE) == with_requested_port) {
847 struct iface *iface = iface_lookup(br, iface_cfg->name);
850 iface_create(br, iface_cfg, port_cfg);
858 bridge_add_ports(struct bridge *br, const struct shash *wanted_ports)
860 /* First add interfaces that request a particular port number. */
861 bridge_add_ports__(br, wanted_ports, true);
863 /* Then add interfaces that want automatic port number assignment.
864 * We add these afterward to avoid accidentally taking a specifically
865 * requested port number. */
866 bridge_add_ports__(br, wanted_ports, false);
870 port_configure(struct port *port)
872 const struct ovsrec_port *cfg = port->cfg;
873 struct bond_settings bond_settings;
874 struct lacp_settings lacp_settings;
875 struct ofproto_bundle_settings s;
878 if (cfg->vlan_mode && !strcmp(cfg->vlan_mode, "splinter")) {
879 configure_splinter_port(port);
888 s.slaves = xmalloc(list_size(&port->ifaces) * sizeof *s.slaves);
889 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
890 s.slaves[s.n_slaves++] = iface->ofp_port;
895 if (cfg->tag && *cfg->tag >= 0 && *cfg->tag <= 4095) {
899 /* Get VLAN trunks. */
902 s.trunks = vlan_bitmap_from_array(cfg->trunks, cfg->n_trunks);
906 if (cfg->vlan_mode) {
907 if (!strcmp(cfg->vlan_mode, "access")) {
908 s.vlan_mode = PORT_VLAN_ACCESS;
909 } else if (!strcmp(cfg->vlan_mode, "trunk")) {
910 s.vlan_mode = PORT_VLAN_TRUNK;
911 } else if (!strcmp(cfg->vlan_mode, "native-tagged")) {
912 s.vlan_mode = PORT_VLAN_NATIVE_TAGGED;
913 } else if (!strcmp(cfg->vlan_mode, "native-untagged")) {
914 s.vlan_mode = PORT_VLAN_NATIVE_UNTAGGED;
916 /* This "can't happen" because ovsdb-server should prevent it. */
917 VLOG_WARN("port %s: unknown VLAN mode %s, falling "
918 "back to trunk mode", port->name, cfg->vlan_mode);
919 s.vlan_mode = PORT_VLAN_TRUNK;
923 s.vlan_mode = PORT_VLAN_ACCESS;
925 VLOG_WARN("port %s: ignoring trunks in favor of implicit vlan",
929 s.vlan_mode = PORT_VLAN_TRUNK;
932 s.use_priority_tags = smap_get_bool(&cfg->other_config, "priority-tags",
935 /* Get LACP settings. */
936 s.lacp = port_configure_lacp(port, &lacp_settings);
940 s.lacp_slaves = xmalloc(s.n_slaves * sizeof *s.lacp_slaves);
941 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
942 iface_configure_lacp(iface, &s.lacp_slaves[i++]);
945 s.lacp_slaves = NULL;
948 /* Get bond settings. */
949 if (s.n_slaves > 1) {
950 s.bond = &bond_settings;
951 port_configure_bond(port, &bond_settings);
954 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
955 netdev_set_miimon_interval(iface->netdev, 0);
960 ofproto_bundle_register(port->bridge->ofproto, port, &s);
968 /* Pick local port hardware address and datapath ID for 'br'. */
970 bridge_configure_datapath_id(struct bridge *br)
972 uint8_t ea[ETH_ADDR_LEN];
974 struct iface *local_iface;
975 struct iface *hw_addr_iface;
978 bridge_pick_local_hw_addr(br, ea, &hw_addr_iface);
979 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
981 int error = netdev_set_etheraddr(local_iface->netdev, ea);
983 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
984 VLOG_ERR_RL(&rl, "bridge %s: failed to set bridge "
985 "Ethernet address: %s",
986 br->name, ovs_strerror(error));
989 memcpy(br->ea, ea, ETH_ADDR_LEN);
991 dpid = bridge_pick_datapath_id(br, ea, hw_addr_iface);
992 if (dpid != ofproto_get_datapath_id(br->ofproto)) {
993 VLOG_INFO("bridge %s: using datapath ID %016"PRIx64, br->name, dpid);
994 ofproto_set_datapath_id(br->ofproto, dpid);
997 dpid_string = xasprintf("%016"PRIx64, dpid);
998 ovsrec_bridge_set_datapath_id(br->cfg, dpid_string);
1002 /* Returns a bitmap of "enum ofputil_protocol"s that are allowed for use with
1005 bridge_get_allowed_versions(struct bridge *br)
1007 if (!br->cfg->n_protocols)
1010 return ofputil_versions_from_strings(br->cfg->protocols,
1011 br->cfg->n_protocols);
1014 /* Set NetFlow configuration on 'br'. */
1016 bridge_configure_netflow(struct bridge *br)
1018 struct ovsrec_netflow *cfg = br->cfg->netflow;
1019 struct netflow_options opts;
1022 ofproto_set_netflow(br->ofproto, NULL);
1026 memset(&opts, 0, sizeof opts);
1028 /* Get default NetFlow configuration from datapath.
1029 * Apply overrides from 'cfg'. */
1030 ofproto_get_netflow_ids(br->ofproto, &opts.engine_type, &opts.engine_id);
1031 if (cfg->engine_type) {
1032 opts.engine_type = *cfg->engine_type;
1034 if (cfg->engine_id) {
1035 opts.engine_id = *cfg->engine_id;
1038 /* Configure active timeout interval. */
1039 opts.active_timeout = cfg->active_timeout;
1040 if (!opts.active_timeout) {
1041 opts.active_timeout = -1;
1042 } else if (opts.active_timeout < 0) {
1043 VLOG_WARN("bridge %s: active timeout interval set to negative "
1044 "value, using default instead (%d seconds)", br->name,
1045 NF_ACTIVE_TIMEOUT_DEFAULT);
1046 opts.active_timeout = -1;
1049 /* Add engine ID to interface number to disambiguate bridgs? */
1050 opts.add_id_to_iface = cfg->add_id_to_interface;
1051 if (opts.add_id_to_iface) {
1052 if (opts.engine_id > 0x7f) {
1053 VLOG_WARN("bridge %s: NetFlow port mangling may conflict with "
1054 "another vswitch, choose an engine id less than 128",
1057 if (hmap_count(&br->ports) > 508) {
1058 VLOG_WARN("bridge %s: NetFlow port mangling will conflict with "
1059 "another port when more than 508 ports are used",
1065 sset_init(&opts.collectors);
1066 sset_add_array(&opts.collectors, cfg->targets, cfg->n_targets);
1069 if (ofproto_set_netflow(br->ofproto, &opts)) {
1070 VLOG_ERR("bridge %s: problem setting netflow collectors", br->name);
1072 sset_destroy(&opts.collectors);
1075 /* Set sFlow configuration on 'br'. */
1077 bridge_configure_sflow(struct bridge *br, int *sflow_bridge_number)
1079 const struct ovsrec_sflow *cfg = br->cfg->sflow;
1080 struct ovsrec_controller **controllers;
1081 struct ofproto_sflow_options oso;
1082 size_t n_controllers;
1086 ofproto_set_sflow(br->ofproto, NULL);
1090 memset(&oso, 0, sizeof oso);
1092 sset_init(&oso.targets);
1093 sset_add_array(&oso.targets, cfg->targets, cfg->n_targets);
1095 oso.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
1096 if (cfg->sampling) {
1097 oso.sampling_rate = *cfg->sampling;
1100 oso.polling_interval = SFL_DEFAULT_POLLING_INTERVAL;
1102 oso.polling_interval = *cfg->polling;
1105 oso.header_len = SFL_DEFAULT_HEADER_SIZE;
1107 oso.header_len = *cfg->header;
1110 oso.sub_id = (*sflow_bridge_number)++;
1111 oso.agent_device = cfg->agent;
1113 oso.control_ip = NULL;
1114 n_controllers = bridge_get_controllers(br, &controllers);
1115 for (i = 0; i < n_controllers; i++) {
1116 if (controllers[i]->local_ip) {
1117 oso.control_ip = controllers[i]->local_ip;
1121 ofproto_set_sflow(br->ofproto, &oso);
1123 sset_destroy(&oso.targets);
1126 /* Returns whether a IPFIX row is valid. */
1128 ovsrec_ipfix_is_valid(const struct ovsrec_ipfix *ipfix)
1130 return ipfix && ipfix->n_targets > 0;
1133 /* Returns whether a Flow_Sample_Collector_Set row is valid. */
1135 ovsrec_fscs_is_valid(const struct ovsrec_flow_sample_collector_set *fscs,
1136 const struct bridge *br)
1138 return ovsrec_ipfix_is_valid(fscs->ipfix) && fscs->bridge == br->cfg;
1141 /* Set IPFIX configuration on 'br'. */
1143 bridge_configure_ipfix(struct bridge *br)
1145 const struct ovsrec_ipfix *be_cfg = br->cfg->ipfix;
1146 bool valid_be_cfg = ovsrec_ipfix_is_valid(be_cfg);
1147 const struct ovsrec_flow_sample_collector_set *fe_cfg;
1148 struct ofproto_ipfix_bridge_exporter_options be_opts;
1149 struct ofproto_ipfix_flow_exporter_options *fe_opts = NULL;
1150 size_t n_fe_opts = 0;
1152 OVSREC_FLOW_SAMPLE_COLLECTOR_SET_FOR_EACH(fe_cfg, idl) {
1153 if (ovsrec_fscs_is_valid(fe_cfg, br)) {
1158 if (!valid_be_cfg && n_fe_opts == 0) {
1159 ofproto_set_ipfix(br->ofproto, NULL, NULL, 0);
1164 memset(&be_opts, 0, sizeof be_opts);
1166 sset_init(&be_opts.targets);
1167 sset_add_array(&be_opts.targets, be_cfg->targets, be_cfg->n_targets);
1169 if (be_cfg->sampling) {
1170 be_opts.sampling_rate = *be_cfg->sampling;
1172 be_opts.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
1174 if (be_cfg->obs_domain_id) {
1175 be_opts.obs_domain_id = *be_cfg->obs_domain_id;
1177 if (be_cfg->obs_point_id) {
1178 be_opts.obs_point_id = *be_cfg->obs_point_id;
1180 if (be_cfg->cache_active_timeout) {
1181 be_opts.cache_active_timeout = *be_cfg->cache_active_timeout;
1183 if (be_cfg->cache_max_flows) {
1184 be_opts.cache_max_flows = *be_cfg->cache_max_flows;
1187 be_opts.enable_tunnel_sampling = smap_get_bool(&be_cfg->other_config,
1188 "enable-tunnel-sampling", true);
1190 be_opts.enable_input_sampling = !smap_get_bool(&be_cfg->other_config,
1191 "enable-input-sampling", false);
1193 be_opts.enable_output_sampling = !smap_get_bool(&be_cfg->other_config,
1194 "enable-output-sampling", false);
1197 if (n_fe_opts > 0) {
1198 struct ofproto_ipfix_flow_exporter_options *opts;
1199 fe_opts = xcalloc(n_fe_opts, sizeof *fe_opts);
1201 OVSREC_FLOW_SAMPLE_COLLECTOR_SET_FOR_EACH(fe_cfg, idl) {
1202 if (ovsrec_fscs_is_valid(fe_cfg, br)) {
1203 opts->collector_set_id = fe_cfg->id;
1204 sset_init(&opts->targets);
1205 sset_add_array(&opts->targets, fe_cfg->ipfix->targets,
1206 fe_cfg->ipfix->n_targets);
1207 opts->cache_active_timeout = fe_cfg->ipfix->cache_active_timeout
1208 ? *fe_cfg->ipfix->cache_active_timeout : 0;
1209 opts->cache_max_flows = fe_cfg->ipfix->cache_max_flows
1210 ? *fe_cfg->ipfix->cache_max_flows : 0;
1216 ofproto_set_ipfix(br->ofproto, valid_be_cfg ? &be_opts : NULL, fe_opts,
1220 sset_destroy(&be_opts.targets);
1223 if (n_fe_opts > 0) {
1224 struct ofproto_ipfix_flow_exporter_options *opts = fe_opts;
1226 for (i = 0; i < n_fe_opts; i++) {
1227 sset_destroy(&opts->targets);
1235 port_configure_stp(const struct ofproto *ofproto, struct port *port,
1236 struct ofproto_port_stp_settings *port_s,
1237 int *port_num_counter, unsigned long *port_num_bitmap)
1239 const char *config_str;
1240 struct iface *iface;
1242 if (!smap_get_bool(&port->cfg->other_config, "stp-enable", true)) {
1243 port_s->enable = false;
1246 port_s->enable = true;
1249 /* STP over bonds is not supported. */
1250 if (!list_is_singleton(&port->ifaces)) {
1251 VLOG_ERR("port %s: cannot enable STP on bonds, disabling",
1253 port_s->enable = false;
1257 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
1259 /* Internal ports shouldn't participate in spanning tree, so
1261 if (!strcmp(iface->type, "internal")) {
1262 VLOG_DBG("port %s: disable STP on internal ports", port->name);
1263 port_s->enable = false;
1267 /* STP on mirror output ports is not supported. */
1268 if (ofproto_is_mirror_output_bundle(ofproto, port)) {
1269 VLOG_DBG("port %s: disable STP on mirror ports", port->name);
1270 port_s->enable = false;
1274 config_str = smap_get(&port->cfg->other_config, "stp-port-num");
1276 unsigned long int port_num = strtoul(config_str, NULL, 0);
1277 int port_idx = port_num - 1;
1279 if (port_num < 1 || port_num > STP_MAX_PORTS) {
1280 VLOG_ERR("port %s: invalid stp-port-num", port->name);
1281 port_s->enable = false;
1285 if (bitmap_is_set(port_num_bitmap, port_idx)) {
1286 VLOG_ERR("port %s: duplicate stp-port-num %lu, disabling",
1287 port->name, port_num);
1288 port_s->enable = false;
1291 bitmap_set1(port_num_bitmap, port_idx);
1292 port_s->port_num = port_idx;
1294 if (*port_num_counter >= STP_MAX_PORTS) {
1295 VLOG_ERR("port %s: too many STP ports, disabling", port->name);
1296 port_s->enable = false;
1300 port_s->port_num = (*port_num_counter)++;
1303 config_str = smap_get(&port->cfg->other_config, "stp-path-cost");
1305 port_s->path_cost = strtoul(config_str, NULL, 10);
1307 enum netdev_features current;
1310 netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
1311 mbps = netdev_features_to_bps(current, 100 * 1000 * 1000) / 1000000;
1312 port_s->path_cost = stp_convert_speed_to_cost(mbps);
1315 config_str = smap_get(&port->cfg->other_config, "stp-port-priority");
1317 port_s->priority = strtoul(config_str, NULL, 0);
1319 port_s->priority = STP_DEFAULT_PORT_PRIORITY;
1324 port_configure_rstp(const struct ofproto *ofproto, struct port *port,
1325 struct ofproto_port_rstp_settings *port_s, int *port_num_counter)
1327 const char *config_str;
1328 struct iface *iface;
1330 if (!smap_get_bool(&port->cfg->other_config, "rstp-enable", true)) {
1331 port_s->enable = false;
1334 port_s->enable = true;
1337 /* RSTP over bonds is not supported. */
1338 if (!list_is_singleton(&port->ifaces)) {
1339 VLOG_ERR("port %s: cannot enable RSTP on bonds, disabling",
1341 port_s->enable = false;
1345 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
1347 /* Internal ports shouldn't participate in spanning tree, so
1349 if (!strcmp(iface->type, "internal")) {
1350 VLOG_DBG("port %s: disable RSTP on internal ports", port->name);
1351 port_s->enable = false;
1355 /* RSTP on mirror output ports is not supported. */
1356 if (ofproto_is_mirror_output_bundle(ofproto, port)) {
1357 VLOG_DBG("port %s: disable RSTP on mirror ports", port->name);
1358 port_s->enable = false;
1362 config_str = smap_get(&port->cfg->other_config, "rstp-port-num");
1364 unsigned long int port_num = strtoul(config_str, NULL, 0);
1365 if (port_num < 1 || port_num > RSTP_MAX_PORTS) {
1366 VLOG_ERR("port %s: invalid rstp-port-num", port->name);
1367 port_s->enable = false;
1370 port_s->port_num = port_num;
1372 if (*port_num_counter >= RSTP_MAX_PORTS) {
1373 VLOG_ERR("port %s: too many RSTP ports, disabling", port->name);
1374 port_s->enable = false;
1377 /* If rstp-port-num is not specified, use 0.
1378 * rstp_port_set_port_number() will look for the first free one. */
1379 port_s->port_num = 0;
1382 config_str = smap_get(&port->cfg->other_config, "rstp-path-cost");
1384 port_s->path_cost = strtoul(config_str, NULL, 10);
1386 enum netdev_features current;
1389 netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
1390 mbps = netdev_features_to_bps(current, 100 * 1000 * 1000) / 1000000;
1391 port_s->path_cost = rstp_convert_speed_to_cost(mbps);
1394 config_str = smap_get(&port->cfg->other_config, "rstp-port-priority");
1396 port_s->priority = strtoul(config_str, NULL, 0);
1398 port_s->priority = RSTP_DEFAULT_PORT_PRIORITY;
1401 config_str = smap_get(&port->cfg->other_config, "rstp-admin-p2p-mac");
1403 port_s->admin_p2p_mac_state = strtoul(config_str, NULL, 0);
1405 port_s->admin_p2p_mac_state = RSTP_ADMIN_P2P_MAC_FORCE_TRUE;
1408 port_s->admin_port_state = smap_get_bool(&port->cfg->other_config,
1409 "rstp-admin-port-state", true);
1411 port_s->admin_edge_port = smap_get_bool(&port->cfg->other_config,
1412 "rstp-port-admin-edge", false);
1413 port_s->auto_edge = smap_get_bool(&port->cfg->other_config,
1414 "rstp-port-auto-edge", true);
1415 port_s->mcheck = smap_get_bool(&port->cfg->other_config,
1416 "rstp-port-mcheck", false);
1419 /* Set spanning tree configuration on 'br'. */
1421 bridge_configure_stp(struct bridge *br)
1423 struct ofproto_rstp_status rstp_status;
1425 ofproto_get_rstp_status(br->ofproto, &rstp_status);
1426 if (!br->cfg->stp_enable) {
1427 ofproto_set_stp(br->ofproto, NULL);
1428 } else if (rstp_status.enabled) {
1429 /* Do not activate STP if RSTP is enabled. */
1430 VLOG_ERR("STP cannot be enabled if RSTP is running.");
1431 ofproto_set_stp(br->ofproto, NULL);
1432 ovsrec_bridge_set_stp_enable(br->cfg, false);
1434 struct ofproto_stp_settings br_s;
1435 const char *config_str;
1437 int port_num_counter;
1438 unsigned long *port_num_bitmap;
1440 config_str = smap_get(&br->cfg->other_config, "stp-system-id");
1442 uint8_t ea[ETH_ADDR_LEN];
1444 if (eth_addr_from_string(config_str, ea)) {
1445 br_s.system_id = eth_addr_to_uint64(ea);
1447 br_s.system_id = eth_addr_to_uint64(br->ea);
1448 VLOG_ERR("bridge %s: invalid stp-system-id, defaulting "
1449 "to "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(br->ea));
1452 br_s.system_id = eth_addr_to_uint64(br->ea);
1455 config_str = smap_get(&br->cfg->other_config, "stp-priority");
1457 br_s.priority = strtoul(config_str, NULL, 0);
1459 br_s.priority = STP_DEFAULT_BRIDGE_PRIORITY;
1462 config_str = smap_get(&br->cfg->other_config, "stp-hello-time");
1464 br_s.hello_time = strtoul(config_str, NULL, 10) * 1000;
1466 br_s.hello_time = STP_DEFAULT_HELLO_TIME;
1469 config_str = smap_get(&br->cfg->other_config, "stp-max-age");
1471 br_s.max_age = strtoul(config_str, NULL, 10) * 1000;
1473 br_s.max_age = STP_DEFAULT_MAX_AGE;
1476 config_str = smap_get(&br->cfg->other_config, "stp-forward-delay");
1478 br_s.fwd_delay = strtoul(config_str, NULL, 10) * 1000;
1480 br_s.fwd_delay = STP_DEFAULT_FWD_DELAY;
1483 /* Configure STP on the bridge. */
1484 if (ofproto_set_stp(br->ofproto, &br_s)) {
1485 VLOG_ERR("bridge %s: could not enable STP", br->name);
1489 /* Users must either set the port number with the "stp-port-num"
1490 * configuration on all ports or none. If manual configuration
1491 * is not done, then we allocate them sequentially. */
1492 port_num_counter = 0;
1493 port_num_bitmap = bitmap_allocate(STP_MAX_PORTS);
1494 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1495 struct ofproto_port_stp_settings port_s;
1496 struct iface *iface;
1498 port_configure_stp(br->ofproto, port, &port_s,
1499 &port_num_counter, port_num_bitmap);
1501 /* As bonds are not supported, just apply configuration to
1502 * all interfaces. */
1503 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1504 if (ofproto_port_set_stp(br->ofproto, iface->ofp_port,
1506 VLOG_ERR("port %s: could not enable STP", port->name);
1512 if (bitmap_scan(port_num_bitmap, 1, 0, STP_MAX_PORTS) != STP_MAX_PORTS
1513 && port_num_counter) {
1514 VLOG_ERR("bridge %s: must manually configure all STP port "
1515 "IDs or none, disabling", br->name);
1516 ofproto_set_stp(br->ofproto, NULL);
1518 bitmap_free(port_num_bitmap);
1523 bridge_configure_rstp(struct bridge *br)
1525 struct ofproto_stp_status stp_status;
1527 ofproto_get_stp_status(br->ofproto, &stp_status);
1528 if (!br->cfg->rstp_enable) {
1529 ofproto_set_rstp(br->ofproto, NULL);
1530 } else if (stp_status.enabled) {
1531 /* Do not activate RSTP if STP is enabled. */
1532 VLOG_ERR("RSTP cannot be enabled if STP is running.");
1533 ofproto_set_rstp(br->ofproto, NULL);
1534 ovsrec_bridge_set_rstp_enable(br->cfg, false);
1536 struct ofproto_rstp_settings br_s;
1537 const char *config_str;
1539 int port_num_counter;
1541 config_str = smap_get(&br->cfg->other_config, "rstp-address");
1543 uint8_t ea[ETH_ADDR_LEN];
1545 if (eth_addr_from_string(config_str, ea)) {
1546 br_s.address = eth_addr_to_uint64(ea);
1549 br_s.address = eth_addr_to_uint64(br->ea);
1550 VLOG_ERR("bridge %s: invalid rstp-address, defaulting "
1551 "to "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(br->ea));
1555 br_s.address = eth_addr_to_uint64(br->ea);
1558 config_str = smap_get(&br->cfg->other_config, "rstp-priority");
1560 br_s.priority = strtoul(config_str, NULL, 0);
1562 br_s.priority = RSTP_DEFAULT_PRIORITY;
1565 config_str = smap_get(&br->cfg->other_config, "rstp-ageing-time");
1567 br_s.ageing_time = strtoul(config_str, NULL, 0);
1569 br_s.ageing_time = RSTP_DEFAULT_AGEING_TIME;
1572 config_str = smap_get(&br->cfg->other_config,
1573 "rstp-force-protocol-version");
1575 br_s.force_protocol_version = strtoul(config_str, NULL, 0);
1577 br_s.force_protocol_version = FPV_DEFAULT;
1580 config_str = smap_get(&br->cfg->other_config, "rstp-max-age");
1582 br_s.bridge_max_age = strtoul(config_str, NULL, 10);
1584 br_s.bridge_max_age = RSTP_DEFAULT_BRIDGE_MAX_AGE;
1587 config_str = smap_get(&br->cfg->other_config, "rstp-forward-delay");
1589 br_s.bridge_forward_delay = strtoul(config_str, NULL, 10);
1591 br_s.bridge_forward_delay = RSTP_DEFAULT_BRIDGE_FORWARD_DELAY;
1594 config_str = smap_get(&br->cfg->other_config,
1595 "rstp-transmit-hold-count");
1597 br_s.transmit_hold_count = strtoul(config_str, NULL, 10);
1599 br_s.transmit_hold_count = RSTP_DEFAULT_TRANSMIT_HOLD_COUNT;
1602 /* Configure RSTP on the bridge. */
1603 if (ofproto_set_rstp(br->ofproto, &br_s)) {
1604 VLOG_ERR("bridge %s: could not enable RSTP", br->name);
1608 port_num_counter = 0;
1609 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1610 struct ofproto_port_rstp_settings port_s;
1611 struct iface *iface;
1613 port_configure_rstp(br->ofproto, port, &port_s,
1616 /* As bonds are not supported, just apply configuration to
1617 * all interfaces. */
1618 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1619 if (ofproto_port_set_rstp(br->ofproto, iface->ofp_port,
1621 VLOG_ERR("port %s: could not enable RSTP", port->name);
1630 bridge_has_bond_fake_iface(const struct bridge *br, const char *name)
1632 const struct port *port = port_lookup(br, name);
1633 return port && port_is_bond_fake_iface(port);
1637 port_is_bond_fake_iface(const struct port *port)
1639 return port->cfg->bond_fake_iface && !list_is_short(&port->ifaces);
1643 add_del_bridges(const struct ovsrec_open_vswitch *cfg)
1645 struct bridge *br, *next;
1646 struct shash new_br;
1649 /* Collect new bridges' names and types. */
1650 shash_init(&new_br);
1651 for (i = 0; i < cfg->n_bridges; i++) {
1652 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1653 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
1655 if (strchr(br_cfg->name, '/')) {
1656 /* Prevent remote ovsdb-server users from accessing arbitrary
1657 * directories, e.g. consider a bridge named "../../../etc/". */
1658 VLOG_WARN_RL(&rl, "ignoring bridge with invalid name \"%s\"",
1660 } else if (!shash_add_once(&new_br, br_cfg->name, br_cfg)) {
1661 VLOG_WARN_RL(&rl, "bridge %s specified twice", br_cfg->name);
1665 /* Get rid of deleted bridges or those whose types have changed.
1666 * Update 'cfg' of bridges that still exist. */
1667 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
1668 br->cfg = shash_find_data(&new_br, br->name);
1669 if (!br->cfg || strcmp(br->type, ofproto_normalize_type(
1670 br->cfg->datapath_type))) {
1675 /* Add new bridges. */
1676 for (i = 0; i < cfg->n_bridges; i++) {
1677 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
1678 struct bridge *br = bridge_lookup(br_cfg->name);
1680 bridge_create(br_cfg);
1684 shash_destroy(&new_br);
1687 /* Configures 'netdev' based on the "options" column in 'iface_cfg'.
1688 * Returns 0 if successful, otherwise a positive errno value. */
1690 iface_set_netdev_config(const struct ovsrec_interface *iface_cfg,
1691 struct netdev *netdev, char **errp)
1693 return netdev_set_config(netdev, &iface_cfg->options, errp);
1696 /* Opens a network device for 'if_cfg' and configures it. Adds the network
1697 * device to br->ofproto and stores the OpenFlow port number in '*ofp_portp'.
1699 * If successful, returns 0 and stores the network device in '*netdevp'. On
1700 * failure, returns a positive errno value and stores NULL in '*netdevp'. */
1702 iface_do_create(const struct bridge *br,
1703 const struct ovsrec_interface *iface_cfg,
1704 const struct ovsrec_port *port_cfg,
1705 ofp_port_t *ofp_portp, struct netdev **netdevp,
1708 struct netdev *netdev = NULL;
1711 if (netdev_is_reserved_name(iface_cfg->name)) {
1712 VLOG_WARN("could not create interface %s, name is reserved",
1718 error = netdev_open(iface_cfg->name,
1719 iface_get_type(iface_cfg, br->cfg), &netdev);
1721 VLOG_WARN_BUF(errp, "could not open network device %s (%s)",
1722 iface_cfg->name, ovs_strerror(error));
1726 error = iface_set_netdev_config(iface_cfg, netdev, errp);
1731 *ofp_portp = iface_pick_ofport(iface_cfg);
1732 error = ofproto_port_add(br->ofproto, netdev, ofp_portp);
1737 VLOG_INFO("bridge %s: added interface %s on port %d",
1738 br->name, iface_cfg->name, *ofp_portp);
1740 if (port_cfg->vlan_mode && !strcmp(port_cfg->vlan_mode, "splinter")) {
1741 netdev_turn_flags_on(netdev, NETDEV_UP, NULL);
1749 netdev_close(netdev);
1753 /* Creates a new iface on 'br' based on 'if_cfg'. The new iface has OpenFlow
1754 * port number 'ofp_port'. If ofp_port is OFPP_NONE, an OpenFlow port is
1755 * automatically allocated for the iface. Takes ownership of and
1756 * deallocates 'if_cfg'.
1758 * Return true if an iface is successfully created, false otherwise. */
1760 iface_create(struct bridge *br, const struct ovsrec_interface *iface_cfg,
1761 const struct ovsrec_port *port_cfg)
1763 struct netdev *netdev;
1764 struct iface *iface;
1765 ofp_port_t ofp_port;
1770 /* Do the bits that can fail up front. */
1771 ovs_assert(!iface_lookup(br, iface_cfg->name));
1772 error = iface_do_create(br, iface_cfg, port_cfg, &ofp_port, &netdev, &errp);
1774 iface_clear_db_record(iface_cfg, errp);
1779 /* Get or create the port structure. */
1780 port = port_lookup(br, port_cfg->name);
1782 port = port_create(br, port_cfg);
1785 /* Create the iface structure. */
1786 iface = xzalloc(sizeof *iface);
1787 list_push_back(&port->ifaces, &iface->port_elem);
1788 hmap_insert(&br->iface_by_name, &iface->name_node,
1789 hash_string(iface_cfg->name, 0));
1791 iface->name = xstrdup(iface_cfg->name);
1792 iface->ofp_port = ofp_port;
1793 iface->netdev = netdev;
1794 iface->type = iface_get_type(iface_cfg, br->cfg);
1795 iface->cfg = iface_cfg;
1796 hmap_insert(&br->ifaces, &iface->ofp_port_node,
1797 hash_ofp_port(ofp_port));
1799 /* Populate initial status in database. */
1800 iface_refresh_stats(iface);
1801 iface_refresh_netdev_status(iface);
1803 /* Add bond fake iface if necessary. */
1804 if (port_is_bond_fake_iface(port)) {
1805 struct ofproto_port ofproto_port;
1807 if (ofproto_port_query_by_name(br->ofproto, port->name,
1809 struct netdev *netdev;
1812 error = netdev_open(port->name, "internal", &netdev);
1814 ofp_port_t fake_ofp_port = OFPP_NONE;
1815 ofproto_port_add(br->ofproto, netdev, &fake_ofp_port);
1816 netdev_close(netdev);
1818 VLOG_WARN("could not open network device %s (%s)",
1819 port->name, ovs_strerror(error));
1822 /* Already exists, nothing to do. */
1823 ofproto_port_destroy(&ofproto_port);
1830 /* Set forward BPDU option. */
1832 bridge_configure_forward_bpdu(struct bridge *br)
1834 ofproto_set_forward_bpdu(br->ofproto,
1835 smap_get_bool(&br->cfg->other_config,
1840 /* Set MAC learning table configuration for 'br'. */
1842 bridge_configure_mac_table(struct bridge *br)
1844 const char *idle_time_str;
1847 const char *mac_table_size_str;
1850 idle_time_str = smap_get(&br->cfg->other_config, "mac-aging-time");
1851 idle_time = (idle_time_str && atoi(idle_time_str)
1852 ? atoi(idle_time_str)
1853 : MAC_ENTRY_DEFAULT_IDLE_TIME);
1855 mac_table_size_str = smap_get(&br->cfg->other_config, "mac-table-size");
1856 mac_table_size = (mac_table_size_str && atoi(mac_table_size_str)
1857 ? atoi(mac_table_size_str)
1860 ofproto_set_mac_table_config(br->ofproto, idle_time, mac_table_size);
1863 /* Set multicast snooping table configuration for 'br'. */
1865 bridge_configure_mcast_snooping(struct bridge *br)
1867 if (!br->cfg->mcast_snooping_enable) {
1868 ofproto_set_mcast_snooping(br->ofproto, NULL);
1871 struct ofproto_mcast_snooping_settings br_s;
1872 const char *idle_time_str;
1873 const char *max_entries_str;
1875 idle_time_str = smap_get(&br->cfg->other_config,
1876 "mcast-snooping-aging-time");
1877 br_s.idle_time = (idle_time_str && atoi(idle_time_str)
1878 ? atoi(idle_time_str)
1879 : MCAST_ENTRY_DEFAULT_IDLE_TIME);
1881 max_entries_str = smap_get(&br->cfg->other_config,
1882 "mcast-snooping-table-size");
1883 br_s.max_entries = (max_entries_str && atoi(max_entries_str)
1884 ? atoi(max_entries_str)
1885 : MCAST_DEFAULT_MAX_ENTRIES);
1887 br_s.flood_unreg = !smap_get_bool(&br->cfg->other_config,
1888 "mcast-snooping-disable-flood-unregistered",
1891 /* Configure multicast snooping on the bridge */
1892 if (ofproto_set_mcast_snooping(br->ofproto, &br_s)) {
1893 VLOG_ERR("bridge %s: could not enable multicast snooping",
1898 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1899 struct ofproto_mcast_snooping_port_settings port_s;
1900 port_s.flood = smap_get_bool(&port->cfg->other_config,
1901 "mcast-snooping-flood", false);
1902 port_s.flood_reports = smap_get_bool(&port->cfg->other_config,
1903 "mcast-snooping-flood-reports", false);
1904 if (ofproto_port_set_mcast_snooping(br->ofproto, port, &port_s)) {
1905 VLOG_ERR("port %s: could not configure mcast snooping",
1913 find_local_hw_addr(const struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
1914 const struct port *fake_br, struct iface **hw_addr_iface)
1916 struct hmapx mirror_output_ports;
1918 bool found_addr = false;
1922 /* Mirror output ports don't participate in picking the local hardware
1923 * address. ofproto can't help us find out whether a given port is a
1924 * mirror output because we haven't configured mirrors yet, so we need to
1925 * accumulate them ourselves. */
1926 hmapx_init(&mirror_output_ports);
1927 for (i = 0; i < br->cfg->n_mirrors; i++) {
1928 struct ovsrec_mirror *m = br->cfg->mirrors[i];
1929 if (m->output_port) {
1930 hmapx_add(&mirror_output_ports, m->output_port);
1934 /* Otherwise choose the minimum non-local MAC address among all of the
1936 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1937 uint8_t iface_ea[ETH_ADDR_LEN];
1938 struct iface *candidate;
1939 struct iface *iface;
1941 /* Mirror output ports don't participate. */
1942 if (hmapx_contains(&mirror_output_ports, port->cfg)) {
1946 /* Choose the MAC address to represent the port. */
1948 if (port->cfg->mac && eth_addr_from_string(port->cfg->mac, iface_ea)) {
1949 /* Find the interface with this Ethernet address (if any) so that
1950 * we can provide the correct devname to the caller. */
1951 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1952 uint8_t candidate_ea[ETH_ADDR_LEN];
1953 if (!netdev_get_etheraddr(candidate->netdev, candidate_ea)
1954 && eth_addr_equals(iface_ea, candidate_ea)) {
1959 /* Choose the interface whose MAC address will represent the port.
1960 * The Linux kernel bonding code always chooses the MAC address of
1961 * the first slave added to a bond, and the Fedora networking
1962 * scripts always add slaves to a bond in alphabetical order, so
1963 * for compatibility we choose the interface with the name that is
1964 * first in alphabetical order. */
1965 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1966 if (!iface || strcmp(candidate->name, iface->name) < 0) {
1971 /* The local port doesn't count (since we're trying to choose its
1972 * MAC address anyway). */
1973 if (iface->ofp_port == OFPP_LOCAL) {
1977 /* For fake bridges we only choose from ports with the same tag */
1978 if (fake_br && fake_br->cfg && fake_br->cfg->tag) {
1979 if (!port->cfg->tag) {
1982 if (*port->cfg->tag != *fake_br->cfg->tag) {
1988 error = netdev_get_etheraddr(iface->netdev, iface_ea);
1994 /* Compare against our current choice. */
1995 if (!eth_addr_is_multicast(iface_ea) &&
1996 !eth_addr_is_local(iface_ea) &&
1997 !eth_addr_is_reserved(iface_ea) &&
1998 !eth_addr_is_zero(iface_ea) &&
1999 (!found_addr || eth_addr_compare_3way(iface_ea, ea) < 0))
2001 memcpy(ea, iface_ea, ETH_ADDR_LEN);
2002 *hw_addr_iface = iface;
2008 memcpy(ea, br->default_ea, ETH_ADDR_LEN);
2009 *hw_addr_iface = NULL;
2012 hmapx_destroy(&mirror_output_ports);
2016 bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
2017 struct iface **hw_addr_iface)
2020 *hw_addr_iface = NULL;
2022 /* Did the user request a particular MAC? */
2023 hwaddr = smap_get(&br->cfg->other_config, "hwaddr");
2024 if (hwaddr && eth_addr_from_string(hwaddr, ea)) {
2025 if (eth_addr_is_multicast(ea)) {
2026 VLOG_ERR("bridge %s: cannot set MAC address to multicast "
2027 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
2028 } else if (eth_addr_is_zero(ea)) {
2029 VLOG_ERR("bridge %s: cannot set MAC address to zero", br->name);
2035 /* Find a local hw address */
2036 find_local_hw_addr(br, ea, NULL, hw_addr_iface);
2039 /* Choose and returns the datapath ID for bridge 'br' given that the bridge
2040 * Ethernet address is 'bridge_ea'. If 'bridge_ea' is the Ethernet address of
2041 * an interface on 'br', then that interface must be passed in as
2042 * 'hw_addr_iface'; if 'bridge_ea' was derived some other way, then
2043 * 'hw_addr_iface' must be passed in as a null pointer. */
2045 bridge_pick_datapath_id(struct bridge *br,
2046 const uint8_t bridge_ea[ETH_ADDR_LEN],
2047 struct iface *hw_addr_iface)
2050 * The procedure for choosing a bridge MAC address will, in the most
2051 * ordinary case, also choose a unique MAC that we can use as a datapath
2052 * ID. In some special cases, though, multiple bridges will end up with
2053 * the same MAC address. This is OK for the bridges, but it will confuse
2054 * the OpenFlow controller, because each datapath needs a unique datapath
2057 * Datapath IDs must be unique. It is also very desirable that they be
2058 * stable from one run to the next, so that policy set on a datapath
2061 const char *datapath_id;
2064 datapath_id = smap_get(&br->cfg->other_config, "datapath-id");
2065 if (datapath_id && dpid_from_string(datapath_id, &dpid)) {
2069 if (!hw_addr_iface) {
2071 * A purely internal bridge, that is, one that has no non-virtual
2072 * network devices on it at all, is difficult because it has no
2073 * natural unique identifier at all.
2075 * When the host is a XenServer, we handle this case by hashing the
2076 * host's UUID with the name of the bridge. Names of bridges are
2077 * persistent across XenServer reboots, although they can be reused if
2078 * an internal network is destroyed and then a new one is later
2079 * created, so this is fairly effective.
2081 * When the host is not a XenServer, we punt by using a random MAC
2082 * address on each run.
2084 const char *host_uuid = xenserver_get_host_uuid();
2086 char *combined = xasprintf("%s,%s", host_uuid, br->name);
2087 dpid = dpid_from_hash(combined, strlen(combined));
2093 return eth_addr_to_uint64(bridge_ea);
2097 dpid_from_hash(const void *data, size_t n)
2099 uint8_t hash[SHA1_DIGEST_SIZE];
2101 BUILD_ASSERT_DECL(sizeof hash >= ETH_ADDR_LEN);
2102 sha1_bytes(data, n, hash);
2103 eth_addr_mark_random(hash);
2104 return eth_addr_to_uint64(hash);
2108 iface_refresh_netdev_status(struct iface *iface)
2112 enum netdev_features current;
2113 enum netdev_flags flags;
2114 const char *link_state;
2115 uint8_t mac[ETH_ADDR_LEN];
2116 int64_t bps, mtu_64, ifindex64, link_resets;
2119 if (iface_is_synthetic(iface)) {
2123 if (iface->change_seq == netdev_get_change_seq(iface->netdev)
2124 && !status_txn_try_again) {
2128 iface->change_seq = netdev_get_change_seq(iface->netdev);
2132 if (!netdev_get_status(iface->netdev, &smap)) {
2133 ovsrec_interface_set_status(iface->cfg, &smap);
2135 ovsrec_interface_set_status(iface->cfg, NULL);
2138 smap_destroy(&smap);
2140 error = netdev_get_flags(iface->netdev, &flags);
2142 const char *state = flags & NETDEV_UP ? "up" : "down";
2144 ovsrec_interface_set_admin_state(iface->cfg, state);
2146 ovsrec_interface_set_admin_state(iface->cfg, NULL);
2149 link_state = netdev_get_carrier(iface->netdev) ? "up" : "down";
2150 ovsrec_interface_set_link_state(iface->cfg, link_state);
2152 link_resets = netdev_get_carrier_resets(iface->netdev);
2153 ovsrec_interface_set_link_resets(iface->cfg, &link_resets, 1);
2155 error = netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
2156 bps = !error ? netdev_features_to_bps(current, 0) : 0;
2158 ovsrec_interface_set_duplex(iface->cfg,
2159 netdev_features_is_full_duplex(current)
2161 ovsrec_interface_set_link_speed(iface->cfg, &bps, 1);
2163 ovsrec_interface_set_duplex(iface->cfg, NULL);
2164 ovsrec_interface_set_link_speed(iface->cfg, NULL, 0);
2167 error = netdev_get_mtu(iface->netdev, &mtu);
2170 ovsrec_interface_set_mtu(iface->cfg, &mtu_64, 1);
2172 ovsrec_interface_set_mtu(iface->cfg, NULL, 0);
2175 error = netdev_get_etheraddr(iface->netdev, mac);
2177 char mac_string[32];
2179 sprintf(mac_string, ETH_ADDR_FMT, ETH_ADDR_ARGS(mac));
2180 ovsrec_interface_set_mac_in_use(iface->cfg, mac_string);
2182 ovsrec_interface_set_mac_in_use(iface->cfg, NULL);
2185 /* The netdev may return a negative number (such as -EOPNOTSUPP)
2186 * if there is no valid ifindex number. */
2187 ifindex64 = netdev_get_ifindex(iface->netdev);
2188 if (ifindex64 < 0) {
2191 ovsrec_interface_set_ifindex(iface->cfg, &ifindex64, 1);
2195 iface_refresh_ofproto_status(struct iface *iface)
2199 if (iface_is_synthetic(iface)) {
2203 current = ofproto_port_is_lacp_current(iface->port->bridge->ofproto,
2207 ovsrec_interface_set_lacp_current(iface->cfg, &bl, 1);
2209 ovsrec_interface_set_lacp_current(iface->cfg, NULL, 0);
2212 if (ofproto_port_cfm_status_changed(iface->port->bridge->ofproto,
2214 || status_txn_try_again) {
2215 iface_refresh_cfm_stats(iface);
2218 if (ofproto_port_bfd_status_changed(iface->port->bridge->ofproto,
2220 || status_txn_try_again) {
2224 ofproto_port_get_bfd_status(iface->port->bridge->ofproto,
2225 iface->ofp_port, &smap);
2226 ovsrec_interface_set_bfd_status(iface->cfg, &smap);
2227 smap_destroy(&smap);
2231 /* Writes 'iface''s CFM statistics to the database. 'iface' must not be
2234 iface_refresh_cfm_stats(struct iface *iface)
2236 const struct ovsrec_interface *cfg = iface->cfg;
2237 struct cfm_status status;
2240 error = ofproto_port_get_cfm_status(iface->port->bridge->ofproto,
2241 iface->ofp_port, &status);
2243 ovsrec_interface_set_cfm_fault(cfg, NULL, 0);
2244 ovsrec_interface_set_cfm_fault_status(cfg, NULL, 0);
2245 ovsrec_interface_set_cfm_remote_opstate(cfg, NULL);
2246 ovsrec_interface_set_cfm_flap_count(cfg, NULL, 0);
2247 ovsrec_interface_set_cfm_health(cfg, NULL, 0);
2248 ovsrec_interface_set_cfm_remote_mpids(cfg, NULL, 0);
2250 const char *reasons[CFM_FAULT_N_REASONS];
2251 int64_t cfm_health = status.health;
2252 int64_t cfm_flap_count = status.flap_count;
2253 bool faulted = status.faults != 0;
2256 ovsrec_interface_set_cfm_fault(cfg, &faulted, 1);
2259 for (i = 0; i < CFM_FAULT_N_REASONS; i++) {
2260 int reason = 1 << i;
2261 if (status.faults & reason) {
2262 reasons[j++] = cfm_fault_reason_to_str(reason);
2265 ovsrec_interface_set_cfm_fault_status(cfg, reasons, j);
2267 ovsrec_interface_set_cfm_flap_count(cfg, &cfm_flap_count, 1);
2269 if (status.remote_opstate >= 0) {
2270 const char *remote_opstate = status.remote_opstate ? "up" : "down";
2271 ovsrec_interface_set_cfm_remote_opstate(cfg, remote_opstate);
2273 ovsrec_interface_set_cfm_remote_opstate(cfg, NULL);
2276 ovsrec_interface_set_cfm_remote_mpids(cfg,
2277 (const int64_t *)status.rmps,
2279 if (cfm_health >= 0) {
2280 ovsrec_interface_set_cfm_health(cfg, &cfm_health, 1);
2282 ovsrec_interface_set_cfm_health(cfg, NULL, 0);
2290 iface_refresh_stats(struct iface *iface)
2292 #define IFACE_STATS \
2293 IFACE_STAT(rx_packets, "rx_packets") \
2294 IFACE_STAT(tx_packets, "tx_packets") \
2295 IFACE_STAT(rx_bytes, "rx_bytes") \
2296 IFACE_STAT(tx_bytes, "tx_bytes") \
2297 IFACE_STAT(rx_dropped, "rx_dropped") \
2298 IFACE_STAT(tx_dropped, "tx_dropped") \
2299 IFACE_STAT(rx_errors, "rx_errors") \
2300 IFACE_STAT(tx_errors, "tx_errors") \
2301 IFACE_STAT(rx_frame_errors, "rx_frame_err") \
2302 IFACE_STAT(rx_over_errors, "rx_over_err") \
2303 IFACE_STAT(rx_crc_errors, "rx_crc_err") \
2304 IFACE_STAT(collisions, "collisions")
2306 #define IFACE_STAT(MEMBER, NAME) + 1
2307 enum { N_IFACE_STATS = IFACE_STATS };
2309 int64_t values[N_IFACE_STATS];
2310 const char *keys[N_IFACE_STATS];
2313 struct netdev_stats stats;
2315 if (iface_is_synthetic(iface)) {
2319 /* Intentionally ignore return value, since errors will set 'stats' to
2320 * all-1s, and we will deal with that correctly below. */
2321 netdev_get_stats(iface->netdev, &stats);
2323 /* Copy statistics into keys[] and values[]. */
2325 #define IFACE_STAT(MEMBER, NAME) \
2326 if (stats.MEMBER != UINT64_MAX) { \
2328 values[n] = stats.MEMBER; \
2333 ovs_assert(n <= N_IFACE_STATS);
2335 ovsrec_interface_set_statistics(iface->cfg, keys, values, n);
2340 br_refresh_datapath_info(struct bridge *br)
2342 const char *version;
2344 version = (br->ofproto && br->ofproto->ofproto_class->get_datapath_version
2345 ? br->ofproto->ofproto_class->get_datapath_version(br->ofproto)
2348 ovsrec_bridge_set_datapath_version(br->cfg,
2349 version ? version : "<unknown>");
2353 br_refresh_stp_status(struct bridge *br)
2355 struct smap smap = SMAP_INITIALIZER(&smap);
2356 struct ofproto *ofproto = br->ofproto;
2357 struct ofproto_stp_status status;
2359 if (ofproto_get_stp_status(ofproto, &status)) {
2363 if (!status.enabled) {
2364 ovsrec_bridge_set_status(br->cfg, NULL);
2368 smap_add_format(&smap, "stp_bridge_id", STP_ID_FMT,
2369 STP_ID_ARGS(status.bridge_id));
2370 smap_add_format(&smap, "stp_designated_root", STP_ID_FMT,
2371 STP_ID_ARGS(status.designated_root));
2372 smap_add_format(&smap, "stp_root_path_cost", "%d", status.root_path_cost);
2374 ovsrec_bridge_set_status(br->cfg, &smap);
2375 smap_destroy(&smap);
2379 port_refresh_stp_status(struct port *port)
2381 struct ofproto *ofproto = port->bridge->ofproto;
2382 struct iface *iface;
2383 struct ofproto_port_stp_status status;
2386 if (port_is_synthetic(port)) {
2390 /* STP doesn't currently support bonds. */
2391 if (!list_is_singleton(&port->ifaces)) {
2392 ovsrec_port_set_status(port->cfg, NULL);
2396 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
2397 if (ofproto_port_get_stp_status(ofproto, iface->ofp_port, &status)) {
2401 if (!status.enabled) {
2402 ovsrec_port_set_status(port->cfg, NULL);
2406 /* Set Status column. */
2408 smap_add_format(&smap, "stp_port_id", STP_PORT_ID_FMT, status.port_id);
2409 smap_add(&smap, "stp_state", stp_state_name(status.state));
2410 smap_add_format(&smap, "stp_sec_in_state", "%u", status.sec_in_state);
2411 smap_add(&smap, "stp_role", stp_role_name(status.role));
2412 ovsrec_port_set_status(port->cfg, &smap);
2413 smap_destroy(&smap);
2417 port_refresh_stp_stats(struct port *port)
2419 struct ofproto *ofproto = port->bridge->ofproto;
2420 struct iface *iface;
2421 struct ofproto_port_stp_stats stats;
2422 const char *keys[3];
2423 int64_t int_values[3];
2425 if (port_is_synthetic(port)) {
2429 /* STP doesn't currently support bonds. */
2430 if (!list_is_singleton(&port->ifaces)) {
2434 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
2435 if (ofproto_port_get_stp_stats(ofproto, iface->ofp_port, &stats)) {
2439 if (!stats.enabled) {
2440 ovsrec_port_set_statistics(port->cfg, NULL, NULL, 0);
2444 /* Set Statistics column. */
2445 keys[0] = "stp_tx_count";
2446 int_values[0] = stats.tx_count;
2447 keys[1] = "stp_rx_count";
2448 int_values[1] = stats.rx_count;
2449 keys[2] = "stp_error_count";
2450 int_values[2] = stats.error_count;
2452 ovsrec_port_set_statistics(port->cfg, keys, int_values,
2453 ARRAY_SIZE(int_values));
2457 br_refresh_rstp_status(struct bridge *br)
2459 struct smap smap = SMAP_INITIALIZER(&smap);
2460 struct ofproto *ofproto = br->ofproto;
2461 struct ofproto_rstp_status status;
2463 if (ofproto_get_rstp_status(ofproto, &status)) {
2466 if (!status.enabled) {
2467 ovsrec_bridge_set_rstp_status(br->cfg, NULL);
2470 smap_add_format(&smap, "rstp_bridge_id", RSTP_ID_FMT,
2471 RSTP_ID_ARGS(status.bridge_id));
2472 smap_add_format(&smap, "rstp_root_path_cost", "%"PRIu32,
2473 status.root_path_cost);
2474 smap_add_format(&smap, "rstp_root_id", RSTP_ID_FMT,
2475 RSTP_ID_ARGS(status.root_id));
2476 smap_add_format(&smap, "rstp_designated_id", RSTP_ID_FMT,
2477 RSTP_ID_ARGS(status.designated_id));
2478 smap_add_format(&smap, "rstp_designated_port_id", RSTP_PORT_ID_FMT,
2479 status.designated_port_id);
2480 smap_add_format(&smap, "rstp_bridge_port_id", RSTP_PORT_ID_FMT,
2481 status.bridge_port_id);
2482 ovsrec_bridge_set_rstp_status(br->cfg, &smap);
2483 smap_destroy(&smap);
2487 port_refresh_rstp_status(struct port *port)
2489 struct ofproto *ofproto = port->bridge->ofproto;
2490 struct iface *iface;
2491 struct ofproto_port_rstp_status status;
2492 const char *keys[4];
2493 int64_t int_values[4];
2496 if (port_is_synthetic(port)) {
2500 /* RSTP doesn't currently support bonds. */
2501 if (!list_is_singleton(&port->ifaces)) {
2502 ovsrec_port_set_rstp_status(port->cfg, NULL);
2506 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
2507 if (ofproto_port_get_rstp_status(ofproto, iface->ofp_port, &status)) {
2511 if (!status.enabled) {
2512 ovsrec_port_set_rstp_status(port->cfg, NULL);
2513 ovsrec_port_set_rstp_statistics(port->cfg, NULL, NULL, 0);
2516 /* Set Status column. */
2519 smap_add_format(&smap, "rstp_port_id", RSTP_PORT_ID_FMT,
2521 smap_add_format(&smap, "rstp_port_role", "%s",
2522 rstp_port_role_name(status.role));
2523 smap_add_format(&smap, "rstp_port_state", "%s",
2524 rstp_state_name(status.state));
2525 smap_add_format(&smap, "rstp_designated_bridge_id", RSTP_ID_FMT,
2526 RSTP_ID_ARGS(status.designated_bridge_id));
2527 smap_add_format(&smap, "rstp_designated_port_id", RSTP_PORT_ID_FMT,
2528 status.designated_port_id);
2529 smap_add_format(&smap, "rstp_designated_path_cost", "%"PRIu32,
2530 status.designated_path_cost);
2532 ovsrec_port_set_rstp_status(port->cfg, &smap);
2533 smap_destroy(&smap);
2535 /* Set Statistics column. */
2536 keys[0] = "rstp_tx_count";
2537 int_values[0] = status.tx_count;
2538 keys[1] = "rstp_rx_count";
2539 int_values[1] = status.rx_count;
2540 keys[2] = "rstp_uptime";
2541 int_values[2] = status.uptime;
2542 keys[3] = "rstp_error_count";
2543 int_values[3] = status.error_count;
2544 ovsrec_port_set_rstp_statistics(port->cfg, keys, int_values,
2545 ARRAY_SIZE(int_values));
2549 port_refresh_bond_status(struct port *port, bool force_update)
2551 uint8_t mac[ETH_ADDR_LEN];
2553 /* Return if port is not a bond */
2554 if (list_is_singleton(&port->ifaces)) {
2558 if (bond_get_changed_active_slave(port->name, mac, force_update)) {
2562 ds_put_format(&mac_s, ETH_ADDR_FMT, ETH_ADDR_ARGS(mac));
2563 ovsrec_port_set_bond_active_slave(port->cfg, ds_cstr(&mac_s));
2569 enable_system_stats(const struct ovsrec_open_vswitch *cfg)
2571 return smap_get_bool(&cfg->other_config, "enable-statistics", false);
2575 reconfigure_system_stats(const struct ovsrec_open_vswitch *cfg)
2577 bool enable = enable_system_stats(cfg);
2579 system_stats_enable(enable);
2581 ovsrec_open_vswitch_set_statistics(cfg, NULL);
2586 run_system_stats(void)
2588 const struct ovsrec_open_vswitch *cfg = ovsrec_open_vswitch_first(idl);
2591 stats = system_stats_run();
2593 struct ovsdb_idl_txn *txn;
2594 struct ovsdb_datum datum;
2596 txn = ovsdb_idl_txn_create(idl);
2597 ovsdb_datum_from_smap(&datum, stats);
2598 ovsdb_idl_txn_write(&cfg->header_, &ovsrec_open_vswitch_col_statistics,
2600 ovsdb_idl_txn_commit(txn);
2601 ovsdb_idl_txn_destroy(txn);
2608 ofp12_controller_role_to_str(enum ofp12_controller_role role)
2611 case OFPCR12_ROLE_EQUAL:
2613 case OFPCR12_ROLE_MASTER:
2615 case OFPCR12_ROLE_SLAVE:
2617 case OFPCR12_ROLE_NOCHANGE:
2619 return "*** INVALID ROLE ***";
2624 refresh_controller_status(void)
2628 const struct ovsrec_controller *cfg;
2632 /* Accumulate status for controllers on all bridges. */
2633 HMAP_FOR_EACH (br, node, &all_bridges) {
2634 ofproto_get_ofproto_controller_info(br->ofproto, &info);
2637 /* Update each controller in the database with current status. */
2638 OVSREC_CONTROLLER_FOR_EACH(cfg, idl) {
2639 struct ofproto_controller_info *cinfo =
2640 shash_find_data(&info, cfg->target);
2643 ovsrec_controller_set_is_connected(cfg, cinfo->is_connected);
2644 ovsrec_controller_set_role(cfg, ofp12_controller_role_to_str(
2646 ovsrec_controller_set_status(cfg, &cinfo->pairs);
2648 ovsrec_controller_set_is_connected(cfg, false);
2649 ovsrec_controller_set_role(cfg, NULL);
2650 ovsrec_controller_set_status(cfg, NULL);
2654 ofproto_free_ofproto_controller_info(&info);
2657 /* Update interface and mirror statistics if necessary. */
2659 run_stats_update(void)
2661 static struct ovsdb_idl_txn *stats_txn;
2662 const struct ovsrec_open_vswitch *cfg = ovsrec_open_vswitch_first(idl);
2669 /* Statistics update interval should always be greater than or equal to
2671 stats_interval = MAX(smap_get_int(&cfg->other_config,
2672 "stats-update-interval",
2674 if (stats_timer_interval != stats_interval) {
2675 stats_timer_interval = stats_interval;
2676 stats_timer = LLONG_MIN;
2679 if (time_msec() >= stats_timer) {
2680 enum ovsdb_idl_txn_status status;
2682 /* Rate limit the update. Do not start a new update if the
2683 * previous one is not done. */
2687 stats_txn = ovsdb_idl_txn_create(idl);
2688 HMAP_FOR_EACH (br, node, &all_bridges) {
2692 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
2693 struct iface *iface;
2695 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
2696 iface_refresh_stats(iface);
2698 port_refresh_stp_stats(port);
2700 HMAP_FOR_EACH (m, hmap_node, &br->mirrors) {
2701 mirror_refresh_stats(m);
2704 refresh_controller_status();
2707 status = ovsdb_idl_txn_commit(stats_txn);
2708 if (status != TXN_INCOMPLETE) {
2709 stats_timer = time_msec() + stats_timer_interval;
2710 ovsdb_idl_txn_destroy(stats_txn);
2716 /* Update bridge/port/interface status if necessary. */
2718 run_status_update(void)
2723 /* Rate limit the update. Do not start a new update if the
2724 * previous one is not done. */
2725 seq = seq_read(connectivity_seq_get());
2726 if (seq != connectivity_seqno || status_txn_try_again) {
2729 connectivity_seqno = seq;
2730 status_txn = ovsdb_idl_txn_create(idl);
2731 HMAP_FOR_EACH (br, node, &all_bridges) {
2734 br_refresh_stp_status(br);
2735 br_refresh_rstp_status(br);
2736 br_refresh_datapath_info(br);
2737 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
2738 struct iface *iface;
2740 port_refresh_stp_status(port);
2741 port_refresh_rstp_status(port);
2742 port_refresh_bond_status(port, status_txn_try_again);
2743 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
2744 iface_refresh_netdev_status(iface);
2745 iface_refresh_ofproto_status(iface);
2752 /* Commit the transaction and get the status. If the transaction finishes,
2753 * then destroy the transaction. Otherwise, keep it so that we can check
2754 * progress the next time that this function is called. */
2756 enum ovsdb_idl_txn_status status;
2758 status = ovsdb_idl_txn_commit(status_txn);
2759 if (status != TXN_INCOMPLETE) {
2760 ovsdb_idl_txn_destroy(status_txn);
2763 /* Sets the 'status_txn_try_again' if the transaction fails. */
2764 if (status == TXN_SUCCESS || status == TXN_UNCHANGED) {
2765 status_txn_try_again = false;
2767 status_txn_try_again = true;
2774 status_update_wait(void)
2776 /* This prevents the process from constantly waking up on
2777 * connectivity seq, when there is no connection to ovsdb. */
2778 if (!ovsdb_idl_has_lock(idl)) {
2782 /* If the 'status_txn' is non-null (transaction incomplete), waits for the
2783 * transaction to complete. If the status update to database needs to be
2784 * run again (transaction fails), registers a timeout in
2785 * 'STATUS_CHECK_AGAIN_MSEC'. Otherwise, waits on the global connectivity
2786 * sequence number. */
2788 ovsdb_idl_txn_wait(status_txn);
2789 } else if (status_txn_try_again) {
2790 poll_timer_wait_until(time_msec() + STATUS_CHECK_AGAIN_MSEC);
2792 seq_wait(connectivity_seq_get(), connectivity_seqno);
2803 /* Let each datapath type do the work that it needs to do. */
2805 ofproto_enumerate_types(&types);
2806 SSET_FOR_EACH (type, &types) {
2807 ofproto_type_run(type);
2809 sset_destroy(&types);
2811 /* Let each bridge do the work that it needs to do. */
2812 HMAP_FOR_EACH (br, node, &all_bridges) {
2813 ofproto_run(br->ofproto);
2820 static struct ovsrec_open_vswitch null_cfg;
2821 const struct ovsrec_open_vswitch *cfg;
2823 bool vlan_splinters_changed;
2825 ovsrec_open_vswitch_init(&null_cfg);
2829 if (ovsdb_idl_is_lock_contended(idl)) {
2830 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
2831 struct bridge *br, *next_br;
2833 VLOG_ERR_RL(&rl, "another ovs-vswitchd process is running, "
2834 "disabling this process (pid %ld) until it goes away",
2835 (long int) getpid());
2837 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
2840 /* Since we will not be running system_stats_run() in this process
2841 * with the current situation of multiple ovs-vswitchd daemons,
2842 * disable system stats collection. */
2843 system_stats_enable(false);
2845 } else if (!ovsdb_idl_has_lock(idl)) {
2848 cfg = ovsrec_open_vswitch_first(idl);
2850 /* Initialize the ofproto library. This only needs to run once, but
2851 * it must be done after the configuration is set. If the
2852 * initialization has already occurred, bridge_init_ofproto()
2853 * returns immediately. */
2854 bridge_init_ofproto(cfg);
2856 /* Once the value of flow-restore-wait is false, we no longer should
2857 * check its value from the database. */
2858 if (cfg && ofproto_get_flow_restore_wait()) {
2859 ofproto_set_flow_restore_wait(smap_get_bool(&cfg->other_config,
2860 "flow-restore-wait", false));
2865 /* Re-configure SSL. We do this on every trip through the main loop,
2866 * instead of just when the database changes, because the contents of the
2867 * key and certificate files can change without the database changing.
2869 * We do this before bridge_reconfigure() because that function might
2870 * initiate SSL connections and thus requires SSL to be configured. */
2871 if (cfg && cfg->ssl) {
2872 const struct ovsrec_ssl *ssl = cfg->ssl;
2874 stream_ssl_set_key_and_cert(ssl->private_key, ssl->certificate);
2875 stream_ssl_set_ca_cert_file(ssl->ca_cert, ssl->bootstrap_ca_cert);
2878 /* If VLAN splinters are in use, then we need to reconfigure if VLAN
2879 * usage has changed. */
2880 vlan_splinters_changed = false;
2881 if (vlan_splinters_enabled_anywhere) {
2884 HMAP_FOR_EACH (br, node, &all_bridges) {
2885 if (ofproto_has_vlan_usage_changed(br->ofproto)) {
2886 vlan_splinters_changed = true;
2892 if (ovsdb_idl_get_seqno(idl) != idl_seqno || vlan_splinters_changed) {
2893 struct ovsdb_idl_txn *txn;
2895 idl_seqno = ovsdb_idl_get_seqno(idl);
2896 txn = ovsdb_idl_txn_create(idl);
2897 bridge_reconfigure(cfg ? cfg : &null_cfg);
2900 ovsrec_open_vswitch_set_cur_cfg(cfg, cfg->next_cfg);
2903 /* If we are completing our initial configuration for this run
2904 * of ovs-vswitchd, then keep the transaction around to monitor
2905 * it for completion. */
2906 if (initial_config_done) {
2907 /* Always sets the 'status_txn_try_again' to check again,
2908 * in case that this transaction fails. */
2909 status_txn_try_again = true;
2910 ovsdb_idl_txn_commit(txn);
2911 ovsdb_idl_txn_destroy(txn);
2913 initial_config_done = true;
2914 daemonize_txn = txn;
2918 if (daemonize_txn) {
2919 enum ovsdb_idl_txn_status status = ovsdb_idl_txn_commit(daemonize_txn);
2920 if (status != TXN_INCOMPLETE) {
2921 ovsdb_idl_txn_destroy(daemonize_txn);
2922 daemonize_txn = NULL;
2924 /* ovs-vswitchd has completed initialization, so allow the
2925 * process that forked us to exit successfully. */
2926 daemonize_complete();
2928 vlog_enable_async();
2930 VLOG_INFO_ONCE("%s (Open vSwitch) %s", program_name, VERSION);
2935 run_status_update();
2945 ovsdb_idl_wait(idl);
2946 if (daemonize_txn) {
2947 ovsdb_idl_txn_wait(daemonize_txn);
2951 ofproto_enumerate_types(&types);
2952 SSET_FOR_EACH (type, &types) {
2953 ofproto_type_wait(type);
2955 sset_destroy(&types);
2957 if (!hmap_is_empty(&all_bridges)) {
2960 HMAP_FOR_EACH (br, node, &all_bridges) {
2961 ofproto_wait(br->ofproto);
2964 poll_timer_wait_until(stats_timer);
2967 status_update_wait();
2968 system_stats_wait();
2971 /* Adds some memory usage statistics for bridges into 'usage', for use with
2972 * memory_report(). */
2974 bridge_get_memory_usage(struct simap *usage)
2981 ofproto_enumerate_types(&types);
2982 SSET_FOR_EACH (type, &types) {
2983 ofproto_type_get_memory_usage(type, usage);
2985 sset_destroy(&types);
2987 HMAP_FOR_EACH (br, node, &all_bridges) {
2988 ofproto_get_memory_usage(br->ofproto, usage);
2992 /* QoS unixctl user interface functions. */
2994 struct qos_unixctl_show_cbdata {
2996 struct iface *iface;
3000 qos_unixctl_show_queue(unsigned int queue_id,
3001 const struct smap *details,
3002 struct iface *iface,
3005 struct netdev_queue_stats stats;
3006 struct smap_node *node;
3009 ds_put_cstr(ds, "\n");
3011 ds_put_format(ds, "Queue %u:\n", queue_id);
3013 ds_put_cstr(ds, "Default:\n");
3016 SMAP_FOR_EACH (node, details) {
3017 ds_put_format(ds, "\t%s: %s\n", node->key, node->value);
3020 error = netdev_get_queue_stats(iface->netdev, queue_id, &stats);
3022 if (stats.tx_packets != UINT64_MAX) {
3023 ds_put_format(ds, "\ttx_packets: %"PRIu64"\n", stats.tx_packets);
3026 if (stats.tx_bytes != UINT64_MAX) {
3027 ds_put_format(ds, "\ttx_bytes: %"PRIu64"\n", stats.tx_bytes);
3030 if (stats.tx_errors != UINT64_MAX) {
3031 ds_put_format(ds, "\ttx_errors: %"PRIu64"\n", stats.tx_errors);
3034 ds_put_format(ds, "\tFailed to get statistics for queue %u: %s",
3035 queue_id, ovs_strerror(error));
3040 qos_unixctl_show(struct unixctl_conn *conn, int argc OVS_UNUSED,
3041 const char *argv[], void *aux OVS_UNUSED)
3043 struct ds ds = DS_EMPTY_INITIALIZER;
3044 struct smap smap = SMAP_INITIALIZER(&smap);
3045 struct iface *iface;
3047 struct smap_node *node;
3049 iface = iface_find(argv[1]);
3051 unixctl_command_reply_error(conn, "no such interface");
3055 netdev_get_qos(iface->netdev, &type, &smap);
3057 if (*type != '\0') {
3058 struct netdev_queue_dump dump;
3059 struct smap details;
3060 unsigned int queue_id;
3062 ds_put_format(&ds, "QoS: %s %s\n", iface->name, type);
3064 SMAP_FOR_EACH (node, &smap) {
3065 ds_put_format(&ds, "%s: %s\n", node->key, node->value);
3068 smap_init(&details);
3069 NETDEV_QUEUE_FOR_EACH (&queue_id, &details, &dump, iface->netdev) {
3070 qos_unixctl_show_queue(queue_id, &details, iface, &ds);
3072 smap_destroy(&details);
3074 unixctl_command_reply(conn, ds_cstr(&ds));
3076 ds_put_format(&ds, "QoS not configured on %s\n", iface->name);
3077 unixctl_command_reply_error(conn, ds_cstr(&ds));
3080 smap_destroy(&smap);
3084 /* Bridge reconfiguration functions. */
3086 bridge_create(const struct ovsrec_bridge *br_cfg)
3090 ovs_assert(!bridge_lookup(br_cfg->name));
3091 br = xzalloc(sizeof *br);
3093 br->name = xstrdup(br_cfg->name);
3094 br->type = xstrdup(ofproto_normalize_type(br_cfg->datapath_type));
3097 /* Derive the default Ethernet address from the bridge's UUID. This should
3098 * be unique and it will be stable between ovs-vswitchd runs. */
3099 memcpy(br->default_ea, &br_cfg->header_.uuid, ETH_ADDR_LEN);
3100 eth_addr_mark_random(br->default_ea);
3102 hmap_init(&br->ports);
3103 hmap_init(&br->ifaces);
3104 hmap_init(&br->iface_by_name);
3105 hmap_init(&br->mirrors);
3107 hmap_insert(&all_bridges, &br->node, hash_string(br->name, 0));
3111 bridge_destroy(struct bridge *br)
3114 struct mirror *mirror, *next_mirror;
3115 struct port *port, *next_port;
3117 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
3120 HMAP_FOR_EACH_SAFE (mirror, next_mirror, hmap_node, &br->mirrors) {
3121 mirror_destroy(mirror);
3124 hmap_remove(&all_bridges, &br->node);
3125 ofproto_destroy(br->ofproto);
3126 hmap_destroy(&br->ifaces);
3127 hmap_destroy(&br->ports);
3128 hmap_destroy(&br->iface_by_name);
3129 hmap_destroy(&br->mirrors);
3136 static struct bridge *
3137 bridge_lookup(const char *name)
3141 HMAP_FOR_EACH_WITH_HASH (br, node, hash_string(name, 0), &all_bridges) {
3142 if (!strcmp(br->name, name)) {
3149 /* Handle requests for a listing of all flows known by the OpenFlow
3150 * stack, including those normally hidden. */
3152 bridge_unixctl_dump_flows(struct unixctl_conn *conn, int argc OVS_UNUSED,
3153 const char *argv[], void *aux OVS_UNUSED)
3158 br = bridge_lookup(argv[1]);
3160 unixctl_command_reply_error(conn, "Unknown bridge");
3165 ofproto_get_all_flows(br->ofproto, &results);
3167 unixctl_command_reply(conn, ds_cstr(&results));
3168 ds_destroy(&results);
3171 /* "bridge/reconnect [BRIDGE]": makes BRIDGE drop all of its controller
3172 * connections and reconnect. If BRIDGE is not specified, then all bridges
3173 * drop their controller connections and reconnect. */
3175 bridge_unixctl_reconnect(struct unixctl_conn *conn, int argc,
3176 const char *argv[], void *aux OVS_UNUSED)
3180 br = bridge_lookup(argv[1]);
3182 unixctl_command_reply_error(conn, "Unknown bridge");
3185 ofproto_reconnect_controllers(br->ofproto);
3187 HMAP_FOR_EACH (br, node, &all_bridges) {
3188 ofproto_reconnect_controllers(br->ofproto);
3191 unixctl_command_reply(conn, NULL);
3195 bridge_get_controllers(const struct bridge *br,
3196 struct ovsrec_controller ***controllersp)
3198 struct ovsrec_controller **controllers;
3199 size_t n_controllers;
3201 controllers = br->cfg->controller;
3202 n_controllers = br->cfg->n_controller;
3204 if (n_controllers == 1 && !strcmp(controllers[0]->target, "none")) {
3210 *controllersp = controllers;
3212 return n_controllers;
3216 bridge_collect_wanted_ports(struct bridge *br,
3217 const unsigned long int *splinter_vlans,
3218 struct shash *wanted_ports)
3222 shash_init(wanted_ports);
3224 for (i = 0; i < br->cfg->n_ports; i++) {
3225 const char *name = br->cfg->ports[i]->name;
3226 if (!shash_add_once(wanted_ports, name, br->cfg->ports[i])) {
3227 VLOG_WARN("bridge %s: %s specified twice as bridge port",
3231 if (bridge_get_controllers(br, NULL)
3232 && !shash_find(wanted_ports, br->name)) {
3233 VLOG_WARN("bridge %s: no port named %s, synthesizing one",
3234 br->name, br->name);
3236 ovsrec_interface_init(&br->synth_local_iface);
3237 ovsrec_port_init(&br->synth_local_port);
3239 br->synth_local_port.interfaces = &br->synth_local_ifacep;
3240 br->synth_local_port.n_interfaces = 1;
3241 br->synth_local_port.name = br->name;
3243 br->synth_local_iface.name = br->name;
3244 br->synth_local_iface.type = "internal";
3246 br->synth_local_ifacep = &br->synth_local_iface;
3248 shash_add(wanted_ports, br->name, &br->synth_local_port);
3251 if (splinter_vlans) {
3252 add_vlan_splinter_ports(br, splinter_vlans, wanted_ports);
3256 /* Deletes "struct port"s and "struct iface"s under 'br' which aren't
3257 * consistent with 'br->cfg'. Updates 'br->if_cfg_queue' with interfaces which
3258 * 'br' needs to complete its configuration. */
3260 bridge_del_ports(struct bridge *br, const struct shash *wanted_ports)
3262 struct shash_node *port_node;
3263 struct port *port, *next;
3265 /* Get rid of deleted ports.
3266 * Get rid of deleted interfaces on ports that still exist. */
3267 HMAP_FOR_EACH_SAFE (port, next, hmap_node, &br->ports) {
3268 port->cfg = shash_find_data(wanted_ports, port->name);
3272 port_del_ifaces(port);
3276 /* Update iface->cfg and iface->type in interfaces that still exist. */
3277 SHASH_FOR_EACH (port_node, wanted_ports) {
3278 const struct ovsrec_port *port = port_node->data;
3281 for (i = 0; i < port->n_interfaces; i++) {
3282 const struct ovsrec_interface *cfg = port->interfaces[i];
3283 struct iface *iface = iface_lookup(br, cfg->name);
3284 const char *type = iface_get_type(cfg, br->cfg);
3289 } else if (!strcmp(type, "null")) {
3290 VLOG_WARN_ONCE("%s: The null interface type is deprecated and"
3291 " may be removed in February 2013. Please email"
3292 " dev@openvswitch.org with concerns.",
3295 /* We will add new interfaces later. */
3301 /* Initializes 'oc' appropriately as a management service controller for
3304 * The caller must free oc->target when it is no longer needed. */
3306 bridge_ofproto_controller_for_mgmt(const struct bridge *br,
3307 struct ofproto_controller *oc)
3309 oc->target = xasprintf("punix:%s/%s.mgmt", ovs_rundir(), br->name);
3310 oc->max_backoff = 0;
3311 oc->probe_interval = 60;
3312 oc->band = OFPROTO_OUT_OF_BAND;
3314 oc->burst_limit = 0;
3315 oc->enable_async_msgs = true;
3319 /* Converts ovsrec_controller 'c' into an ofproto_controller in 'oc'. */
3321 bridge_ofproto_controller_from_ovsrec(const struct ovsrec_controller *c,
3322 struct ofproto_controller *oc)
3326 oc->target = c->target;
3327 oc->max_backoff = c->max_backoff ? *c->max_backoff / 1000 : 8;
3328 oc->probe_interval = c->inactivity_probe ? *c->inactivity_probe / 1000 : 5;
3329 oc->band = (!c->connection_mode || !strcmp(c->connection_mode, "in-band")
3330 ? OFPROTO_IN_BAND : OFPROTO_OUT_OF_BAND);
3331 oc->rate_limit = c->controller_rate_limit ? *c->controller_rate_limit : 0;
3332 oc->burst_limit = (c->controller_burst_limit
3333 ? *c->controller_burst_limit : 0);
3334 oc->enable_async_msgs = (!c->enable_async_messages
3335 || *c->enable_async_messages);
3336 dscp = smap_get_int(&c->other_config, "dscp", DSCP_DEFAULT);
3337 if (dscp < 0 || dscp > 63) {
3338 dscp = DSCP_DEFAULT;
3343 /* Configures the IP stack for 'br''s local interface properly according to the
3344 * configuration in 'c'. */
3346 bridge_configure_local_iface_netdev(struct bridge *br,
3347 struct ovsrec_controller *c)
3349 struct netdev *netdev;
3350 struct in_addr mask, gateway;
3352 struct iface *local_iface;
3355 /* If there's no local interface or no IP address, give up. */
3356 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
3357 if (!local_iface || !c->local_ip
3358 || !inet_pton(AF_INET, c->local_ip, &ip)) {
3362 /* Bring up the local interface. */
3363 netdev = local_iface->netdev;
3364 netdev_turn_flags_on(netdev, NETDEV_UP, NULL);
3366 /* Configure the IP address and netmask. */
3367 if (!c->local_netmask
3368 || !inet_pton(AF_INET, c->local_netmask, &mask)
3370 mask.s_addr = guess_netmask(ip.s_addr);
3372 if (!netdev_set_in4(netdev, ip, mask)) {
3373 VLOG_INFO("bridge %s: configured IP address "IP_FMT", netmask "IP_FMT,
3374 br->name, IP_ARGS(ip.s_addr), IP_ARGS(mask.s_addr));
3377 /* Configure the default gateway. */
3378 if (c->local_gateway
3379 && inet_pton(AF_INET, c->local_gateway, &gateway)
3380 && gateway.s_addr) {
3381 if (!netdev_add_router(netdev, gateway)) {
3382 VLOG_INFO("bridge %s: configured gateway "IP_FMT,
3383 br->name, IP_ARGS(gateway.s_addr));
3388 /* Returns true if 'a' and 'b' are the same except that any number of slashes
3389 * in either string are treated as equal to any number of slashes in the other,
3390 * e.g. "x///y" is equal to "x/y".
3392 * Also, if 'b_stoplen' bytes from 'b' are found to be equal to corresponding
3393 * bytes from 'a', the function considers this success. Specify 'b_stoplen' as
3394 * SIZE_MAX to compare all of 'a' to all of 'b' rather than just a prefix of
3395 * 'b' against a prefix of 'a'.
3398 equal_pathnames(const char *a, const char *b, size_t b_stoplen)
3400 const char *b_start = b;
3402 if (b - b_start >= b_stoplen) {
3404 } else if (*a != *b) {
3406 } else if (*a == '/') {
3407 a += strspn(a, "/");
3408 b += strspn(b, "/");
3409 } else if (*a == '\0') {
3419 bridge_configure_remotes(struct bridge *br,
3420 const struct sockaddr_in *managers, size_t n_managers)
3422 bool disable_in_band;
3424 struct ovsrec_controller **controllers;
3425 size_t n_controllers;
3427 enum ofproto_fail_mode fail_mode;
3429 struct ofproto_controller *ocs;
3433 /* Check if we should disable in-band control on this bridge. */
3434 disable_in_band = smap_get_bool(&br->cfg->other_config, "disable-in-band",
3437 /* Set OpenFlow queue ID for in-band control. */
3438 ofproto_set_in_band_queue(br->ofproto,
3439 smap_get_int(&br->cfg->other_config,
3440 "in-band-queue", -1));
3442 if (disable_in_band) {
3443 ofproto_set_extra_in_band_remotes(br->ofproto, NULL, 0);
3445 ofproto_set_extra_in_band_remotes(br->ofproto, managers, n_managers);
3448 n_controllers = bridge_get_controllers(br, &controllers);
3450 ocs = xmalloc((n_controllers + 1) * sizeof *ocs);
3453 bridge_ofproto_controller_for_mgmt(br, &ocs[n_ocs++]);
3454 for (i = 0; i < n_controllers; i++) {
3455 struct ovsrec_controller *c = controllers[i];
3457 if (!strncmp(c->target, "punix:", 6)
3458 || !strncmp(c->target, "unix:", 5)) {
3459 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
3462 if (!strncmp(c->target, "unix:", 5)) {
3463 /* Connect to a listening socket */
3464 whitelist = xasprintf("unix:%s/", ovs_rundir());
3465 if (strchr(c->target, '/') &&
3466 !equal_pathnames(c->target, whitelist,
3467 strlen(whitelist))) {
3468 /* Absolute path specified, but not in ovs_rundir */
3469 VLOG_ERR_RL(&rl, "bridge %s: Not connecting to socket "
3470 "controller \"%s\" due to possibility for "
3471 "remote exploit. Instead, specify socket "
3472 "in whitelisted \"%s\" or connect to "
3473 "\"unix:%s/%s.mgmt\" (which is always "
3474 "available without special configuration).",
3475 br->name, c->target, whitelist,
3476 ovs_rundir(), br->name);
3481 whitelist = xasprintf("punix:%s/%s.controller",
3482 ovs_rundir(), br->name);
3483 if (!equal_pathnames(c->target, whitelist, SIZE_MAX)) {
3484 /* Prevent remote ovsdb-server users from accessing
3485 * arbitrary Unix domain sockets and overwriting arbitrary
3487 VLOG_ERR_RL(&rl, "bridge %s: Not adding Unix domain socket "
3488 "controller \"%s\" due to possibility of "
3489 "overwriting local files. Instead, specify "
3490 "whitelisted \"%s\" or connect to "
3491 "\"unix:%s/%s.mgmt\" (which is always "
3492 "available without special configuration).",
3493 br->name, c->target, whitelist,
3494 ovs_rundir(), br->name);
3503 bridge_configure_local_iface_netdev(br, c);
3504 bridge_ofproto_controller_from_ovsrec(c, &ocs[n_ocs]);
3505 if (disable_in_band) {
3506 ocs[n_ocs].band = OFPROTO_OUT_OF_BAND;
3511 ofproto_set_controllers(br->ofproto, ocs, n_ocs,
3512 bridge_get_allowed_versions(br));
3513 free(ocs[0].target); /* From bridge_ofproto_controller_for_mgmt(). */
3516 /* Set the fail-mode. */
3517 fail_mode = !br->cfg->fail_mode
3518 || !strcmp(br->cfg->fail_mode, "standalone")
3519 ? OFPROTO_FAIL_STANDALONE
3520 : OFPROTO_FAIL_SECURE;
3521 ofproto_set_fail_mode(br->ofproto, fail_mode);
3523 /* Configure OpenFlow controller connection snooping. */
3524 if (!ofproto_has_snoops(br->ofproto)) {
3528 sset_add_and_free(&snoops, xasprintf("punix:%s/%s.snoop",
3529 ovs_rundir(), br->name));
3530 ofproto_set_snoops(br->ofproto, &snoops);
3531 sset_destroy(&snoops);
3536 bridge_configure_tables(struct bridge *br)
3538 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
3542 n_tables = ofproto_get_n_tables(br->ofproto);
3544 for (i = 0; i < n_tables; i++) {
3545 struct ofproto_table_settings s;
3546 bool use_default_prefixes = true;
3549 s.max_flows = UINT_MAX;
3552 s.n_prefix_fields = 0;
3553 memset(s.prefix_fields, ~0, sizeof(s.prefix_fields));
3555 if (j < br->cfg->n_flow_tables && i == br->cfg->key_flow_tables[j]) {
3556 struct ovsrec_flow_table *cfg = br->cfg->value_flow_tables[j++];
3559 if (cfg->n_flow_limit && *cfg->flow_limit < UINT_MAX) {
3560 s.max_flows = *cfg->flow_limit;
3562 if (cfg->overflow_policy
3563 && !strcmp(cfg->overflow_policy, "evict")) {
3565 s.groups = xmalloc(cfg->n_groups * sizeof *s.groups);
3566 for (k = 0; k < cfg->n_groups; k++) {
3567 const char *string = cfg->groups[k];
3570 msg = mf_parse_subfield__(&s.groups[k], &string);
3572 VLOG_WARN_RL(&rl, "bridge %s table %d: error parsing "
3573 "'groups' (%s)", br->name, i, msg);
3575 } else if (*string) {
3576 VLOG_WARN_RL(&rl, "bridge %s table %d: 'groups' "
3577 "element '%s' contains trailing garbage",
3578 br->name, i, cfg->groups[k]);
3584 /* Prefix lookup fields. */
3585 s.n_prefix_fields = 0;
3586 for (k = 0; k < cfg->n_prefixes; k++) {
3587 const char *name = cfg->prefixes[k];
3588 const struct mf_field *mf;
3590 if (strcmp(name, "none") == 0) {
3591 use_default_prefixes = false;
3592 s.n_prefix_fields = 0;
3595 mf = mf_from_name(name);
3597 VLOG_WARN("bridge %s: 'prefixes' with unknown field: %s",
3601 if (mf->flow_be32ofs < 0 || mf->n_bits % 32) {
3602 VLOG_WARN("bridge %s: 'prefixes' with incompatible field: "
3603 "%s", br->name, name);
3606 if (s.n_prefix_fields >= ARRAY_SIZE(s.prefix_fields)) {
3607 VLOG_WARN("bridge %s: 'prefixes' with too many fields, "
3608 "field not used: %s", br->name, name);
3611 use_default_prefixes = false;
3612 s.prefix_fields[s.n_prefix_fields++] = mf->id;
3615 if (use_default_prefixes) {
3616 /* Use default values. */
3617 s.n_prefix_fields = ARRAY_SIZE(default_prefix_fields);
3618 memcpy(s.prefix_fields, default_prefix_fields,
3619 sizeof default_prefix_fields);
3622 struct ds ds = DS_EMPTY_INITIALIZER;
3623 for (k = 0; k < s.n_prefix_fields; k++) {
3625 ds_put_char(&ds, ',');
3627 ds_put_cstr(&ds, mf_from_id(s.prefix_fields[k])->name);
3629 if (s.n_prefix_fields == 0) {
3630 ds_put_cstr(&ds, "none");
3632 VLOG_INFO("bridge %s table %d: Prefix lookup with: %s.",
3633 br->name, i, ds_cstr(&ds));
3637 ofproto_configure_table(br->ofproto, i, &s);
3641 for (; j < br->cfg->n_flow_tables; j++) {
3642 VLOG_WARN_RL(&rl, "bridge %s: ignoring configuration for flow table "
3643 "%"PRId64" not supported by this datapath", br->name,
3644 br->cfg->key_flow_tables[j]);
3649 bridge_configure_dp_desc(struct bridge *br)
3651 ofproto_set_dp_desc(br->ofproto,
3652 smap_get(&br->cfg->other_config, "dp-desc"));
3655 /* Port functions. */
3657 static struct port *
3658 port_create(struct bridge *br, const struct ovsrec_port *cfg)
3662 port = xzalloc(sizeof *port);
3664 port->name = xstrdup(cfg->name);
3666 list_init(&port->ifaces);
3668 hmap_insert(&br->ports, &port->hmap_node, hash_string(port->name, 0));
3672 /* Deletes interfaces from 'port' that are no longer configured for it. */
3674 port_del_ifaces(struct port *port)
3676 struct iface *iface, *next;
3677 struct sset new_ifaces;
3680 /* Collect list of new interfaces. */
3681 sset_init(&new_ifaces);
3682 for (i = 0; i < port->cfg->n_interfaces; i++) {
3683 const char *name = port->cfg->interfaces[i]->name;
3684 const char *type = port->cfg->interfaces[i]->type;
3685 if (strcmp(type, "null")) {
3686 sset_add(&new_ifaces, name);
3690 /* Get rid of deleted interfaces. */
3691 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
3692 if (!sset_contains(&new_ifaces, iface->name)) {
3693 iface_destroy(iface);
3697 sset_destroy(&new_ifaces);
3701 port_destroy(struct port *port)
3704 struct bridge *br = port->bridge;
3705 struct iface *iface, *next;
3708 ofproto_bundle_unregister(br->ofproto, port);
3711 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
3712 iface_destroy__(iface);
3715 hmap_remove(&br->ports, &port->hmap_node);
3721 static struct port *
3722 port_lookup(const struct bridge *br, const char *name)
3726 HMAP_FOR_EACH_WITH_HASH (port, hmap_node, hash_string(name, 0),
3728 if (!strcmp(port->name, name)) {
3736 enable_lacp(struct port *port, bool *activep)
3738 if (!port->cfg->lacp) {
3739 /* XXX when LACP implementation has been sufficiently tested, enable by
3740 * default and make active on bonded ports. */
3742 } else if (!strcmp(port->cfg->lacp, "off")) {
3744 } else if (!strcmp(port->cfg->lacp, "active")) {
3747 } else if (!strcmp(port->cfg->lacp, "passive")) {
3751 VLOG_WARN("port %s: unknown LACP mode %s",
3752 port->name, port->cfg->lacp);
3757 static struct lacp_settings *
3758 port_configure_lacp(struct port *port, struct lacp_settings *s)
3760 const char *lacp_time, *system_id;
3763 if (!enable_lacp(port, &s->active)) {
3767 s->name = port->name;
3769 system_id = smap_get(&port->cfg->other_config, "lacp-system-id");
3771 if (!ovs_scan(system_id, ETH_ADDR_SCAN_FMT,
3772 ETH_ADDR_SCAN_ARGS(s->id))) {
3773 VLOG_WARN("port %s: LACP system ID (%s) must be an Ethernet"
3774 " address.", port->name, system_id);
3778 memcpy(s->id, port->bridge->ea, ETH_ADDR_LEN);
3781 if (eth_addr_is_zero(s->id)) {
3782 VLOG_WARN("port %s: Invalid zero LACP system ID.", port->name);
3786 /* Prefer bondable links if unspecified. */
3787 priority = smap_get_int(&port->cfg->other_config, "lacp-system-priority",
3789 s->priority = (priority > 0 && priority <= UINT16_MAX
3791 : UINT16_MAX - !list_is_short(&port->ifaces));
3793 lacp_time = smap_get(&port->cfg->other_config, "lacp-time");
3794 s->fast = lacp_time && !strcasecmp(lacp_time, "fast");
3796 s->fallback_ab_cfg = smap_get_bool(&port->cfg->other_config,
3797 "lacp-fallback-ab", false);
3803 iface_configure_lacp(struct iface *iface, struct lacp_slave_settings *s)
3805 int priority, portid, key;
3807 portid = smap_get_int(&iface->cfg->other_config, "lacp-port-id", 0);
3808 priority = smap_get_int(&iface->cfg->other_config, "lacp-port-priority",
3810 key = smap_get_int(&iface->cfg->other_config, "lacp-aggregation-key", 0);
3812 if (portid <= 0 || portid > UINT16_MAX) {
3813 portid = ofp_to_u16(iface->ofp_port);
3816 if (priority <= 0 || priority > UINT16_MAX) {
3817 priority = UINT16_MAX;
3820 if (key < 0 || key > UINT16_MAX) {
3824 s->name = iface->name;
3826 s->priority = priority;
3831 port_configure_bond(struct port *port, struct bond_settings *s)
3833 const char *detect_s;
3834 struct iface *iface;
3836 int miimon_interval;
3838 s->name = port->name;
3840 if (port->cfg->bond_mode) {
3841 if (!bond_mode_from_string(&s->balance, port->cfg->bond_mode)) {
3842 VLOG_WARN("port %s: unknown bond_mode %s, defaulting to %s",
3843 port->name, port->cfg->bond_mode,
3844 bond_mode_to_string(s->balance));
3847 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
3849 /* XXX: Post version 1.5.*, the default bond_mode changed from SLB to
3850 * active-backup. At some point we should remove this warning. */
3851 VLOG_WARN_RL(&rl, "port %s: Using the default bond_mode %s. Note that"
3852 " in previous versions, the default bond_mode was"
3853 " balance-slb", port->name,
3854 bond_mode_to_string(s->balance));
3856 if (s->balance == BM_SLB && port->bridge->cfg->n_flood_vlans) {
3857 VLOG_WARN("port %s: SLB bonds are incompatible with flood_vlans, "
3858 "please use another bond type or disable flood_vlans",
3862 miimon_interval = smap_get_int(&port->cfg->other_config,
3863 "bond-miimon-interval", 0);
3864 if (miimon_interval <= 0) {
3865 miimon_interval = 200;
3868 detect_s = smap_get(&port->cfg->other_config, "bond-detect-mode");
3869 if (!detect_s || !strcmp(detect_s, "carrier")) {
3870 miimon_interval = 0;
3871 } else if (strcmp(detect_s, "miimon")) {
3872 VLOG_WARN("port %s: unsupported bond-detect-mode %s, "
3873 "defaulting to carrier", port->name, detect_s);
3874 miimon_interval = 0;
3877 s->up_delay = MAX(0, port->cfg->bond_updelay);
3878 s->down_delay = MAX(0, port->cfg->bond_downdelay);
3879 s->basis = smap_get_int(&port->cfg->other_config, "bond-hash-basis", 0);
3880 s->rebalance_interval = smap_get_int(&port->cfg->other_config,
3881 "bond-rebalance-interval", 10000);
3882 if (s->rebalance_interval && s->rebalance_interval < 1000) {
3883 s->rebalance_interval = 1000;
3886 s->lacp_fallback_ab_cfg = smap_get_bool(&port->cfg->other_config,
3887 "lacp-fallback-ab", false);
3889 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
3890 netdev_set_miimon_interval(iface->netdev, miimon_interval);
3893 mac_s = port->cfg->bond_active_slave;
3894 if (!mac_s || !ovs_scan(mac_s, ETH_ADDR_SCAN_FMT,
3895 ETH_ADDR_SCAN_ARGS(s->active_slave_mac))) {
3896 /* OVSDB did not store the last active interface */
3897 memset(s->active_slave_mac, 0, sizeof(s->active_slave_mac));
3901 /* Returns true if 'port' is synthetic, that is, if we constructed it locally
3902 * instead of obtaining it from the database. */
3904 port_is_synthetic(const struct port *port)
3906 return ovsdb_idl_row_is_synthetic(&port->cfg->header_);
3909 /* Interface functions. */
3912 iface_is_internal(const struct ovsrec_interface *iface,
3913 const struct ovsrec_bridge *br)
3915 /* The local port and "internal" ports are always "internal". */
3916 return !strcmp(iface->type, "internal") || !strcmp(iface->name, br->name);
3919 /* Returns the correct network device type for interface 'iface' in bridge
3922 iface_get_type(const struct ovsrec_interface *iface,
3923 const struct ovsrec_bridge *br)
3927 /* The local port always has type "internal". Other ports take
3928 * their type from the database and default to "system" if none is
3930 if (iface_is_internal(iface, br)) {
3933 type = iface->type[0] ? iface->type : "system";
3936 return ofproto_port_open_type(br->datapath_type, type);
3940 iface_destroy__(struct iface *iface)
3943 struct port *port = iface->port;
3944 struct bridge *br = port->bridge;
3946 if (br->ofproto && iface->ofp_port != OFPP_NONE) {
3947 ofproto_port_unregister(br->ofproto, iface->ofp_port);
3950 if (iface->ofp_port != OFPP_NONE) {
3951 hmap_remove(&br->ifaces, &iface->ofp_port_node);
3954 list_remove(&iface->port_elem);
3955 hmap_remove(&br->iface_by_name, &iface->name_node);
3957 /* The user is changing configuration here, so netdev_remove needs to be
3958 * used as opposed to netdev_close */
3959 netdev_remove(iface->netdev);
3967 iface_destroy(struct iface *iface)
3970 struct port *port = iface->port;
3972 iface_destroy__(iface);
3973 if (list_is_empty(&port->ifaces)) {
3979 static struct iface *
3980 iface_lookup(const struct bridge *br, const char *name)
3982 struct iface *iface;
3984 HMAP_FOR_EACH_WITH_HASH (iface, name_node, hash_string(name, 0),
3985 &br->iface_by_name) {
3986 if (!strcmp(iface->name, name)) {
3994 static struct iface *
3995 iface_find(const char *name)
3997 const struct bridge *br;
3999 HMAP_FOR_EACH (br, node, &all_bridges) {
4000 struct iface *iface = iface_lookup(br, name);
4009 static struct iface *
4010 iface_from_ofp_port(const struct bridge *br, ofp_port_t ofp_port)
4012 struct iface *iface;
4014 HMAP_FOR_EACH_IN_BUCKET (iface, ofp_port_node, hash_ofp_port(ofp_port),
4016 if (iface->ofp_port == ofp_port) {
4023 /* Set Ethernet address of 'iface', if one is specified in the configuration
4026 iface_set_mac(const struct bridge *br, const struct port *port, struct iface *iface)
4028 uint8_t ea[ETH_ADDR_LEN], *mac = NULL;
4029 struct iface *hw_addr_iface;
4031 if (strcmp(iface->type, "internal")) {
4035 if (iface->cfg->mac && eth_addr_from_string(iface->cfg->mac, ea)) {
4037 } else if (port->cfg->fake_bridge) {
4038 /* Fake bridge and no MAC set in the configuration. Pick a local one. */
4039 find_local_hw_addr(br, ea, port, &hw_addr_iface);
4044 if (iface->ofp_port == OFPP_LOCAL) {
4045 VLOG_ERR("interface %s: ignoring mac in Interface record "
4046 "(use Bridge record to set local port's mac)",
4048 } else if (eth_addr_is_multicast(mac)) {
4049 VLOG_ERR("interface %s: cannot set MAC to multicast address",
4052 int error = netdev_set_etheraddr(iface->netdev, mac);
4054 VLOG_ERR("interface %s: setting MAC failed (%s)",
4055 iface->name, ovs_strerror(error));
4061 /* Sets the ofport column of 'if_cfg' to 'ofport'. */
4063 iface_set_ofport(const struct ovsrec_interface *if_cfg, ofp_port_t ofport)
4065 if (if_cfg && !ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
4066 int64_t port = ofport == OFPP_NONE ? -1 : ofp_to_u16(ofport);
4067 ovsrec_interface_set_ofport(if_cfg, &port, 1);
4071 /* Clears all of the fields in 'if_cfg' that indicate interface status, and
4072 * sets the "ofport" field to -1.
4074 * This is appropriate when 'if_cfg''s interface cannot be created or is
4075 * otherwise invalid. */
4077 iface_clear_db_record(const struct ovsrec_interface *if_cfg, char *errp)
4079 if (!ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
4080 iface_set_ofport(if_cfg, OFPP_NONE);
4081 ovsrec_interface_set_error(if_cfg, errp);
4082 ovsrec_interface_set_status(if_cfg, NULL);
4083 ovsrec_interface_set_admin_state(if_cfg, NULL);
4084 ovsrec_interface_set_duplex(if_cfg, NULL);
4085 ovsrec_interface_set_link_speed(if_cfg, NULL, 0);
4086 ovsrec_interface_set_link_state(if_cfg, NULL);
4087 ovsrec_interface_set_mac_in_use(if_cfg, NULL);
4088 ovsrec_interface_set_mtu(if_cfg, NULL, 0);
4089 ovsrec_interface_set_cfm_fault(if_cfg, NULL, 0);
4090 ovsrec_interface_set_cfm_fault_status(if_cfg, NULL, 0);
4091 ovsrec_interface_set_cfm_remote_mpids(if_cfg, NULL, 0);
4092 ovsrec_interface_set_lacp_current(if_cfg, NULL, 0);
4093 ovsrec_interface_set_statistics(if_cfg, NULL, NULL, 0);
4094 ovsrec_interface_set_ifindex(if_cfg, NULL, 0);
4099 queue_ids_include(const struct ovsdb_datum *queues, int64_t target)
4101 union ovsdb_atom atom;
4103 atom.integer = target;
4104 return ovsdb_datum_find_key(queues, &atom, OVSDB_TYPE_INTEGER) != UINT_MAX;
4108 iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos)
4110 struct ofpbuf queues_buf;
4112 ofpbuf_init(&queues_buf, 0);
4114 if (!qos || qos->type[0] == '\0' || qos->n_queues < 1) {
4115 netdev_set_qos(iface->netdev, NULL, NULL);
4117 const struct ovsdb_datum *queues;
4118 struct netdev_queue_dump dump;
4119 unsigned int queue_id;
4120 struct smap details;
4124 /* Configure top-level Qos for 'iface'. */
4125 netdev_set_qos(iface->netdev, qos->type, &qos->other_config);
4127 /* Deconfigure queues that were deleted. */
4128 queues = ovsrec_qos_get_queues(qos, OVSDB_TYPE_INTEGER,
4130 smap_init(&details);
4131 NETDEV_QUEUE_FOR_EACH (&queue_id, &details, &dump, iface->netdev) {
4132 if (!queue_ids_include(queues, queue_id)) {
4133 netdev_delete_queue(iface->netdev, queue_id);
4136 smap_destroy(&details);
4138 /* Configure queues for 'iface'. */
4140 for (i = 0; i < qos->n_queues; i++) {
4141 const struct ovsrec_queue *queue = qos->value_queues[i];
4142 unsigned int queue_id = qos->key_queues[i];
4144 if (queue_id == 0) {
4148 if (queue->n_dscp == 1) {
4149 struct ofproto_port_queue *port_queue;
4151 port_queue = ofpbuf_put_uninit(&queues_buf,
4152 sizeof *port_queue);
4153 port_queue->queue = queue_id;
4154 port_queue->dscp = queue->dscp[0];
4157 netdev_set_queue(iface->netdev, queue_id, &queue->other_config);
4160 struct smap details;
4162 smap_init(&details);
4163 netdev_set_queue(iface->netdev, 0, &details);
4164 smap_destroy(&details);
4168 if (iface->ofp_port != OFPP_NONE) {
4169 const struct ofproto_port_queue *port_queues = queues_buf.data;
4170 size_t n_queues = queues_buf.size / sizeof *port_queues;
4172 ofproto_port_set_queues(iface->port->bridge->ofproto, iface->ofp_port,
4173 port_queues, n_queues);
4176 netdev_set_policing(iface->netdev,
4177 iface->cfg->ingress_policing_rate,
4178 iface->cfg->ingress_policing_burst);
4180 ofpbuf_uninit(&queues_buf);
4184 iface_configure_cfm(struct iface *iface)
4186 const struct ovsrec_interface *cfg = iface->cfg;
4187 const char *opstate_str;
4188 const char *cfm_ccm_vlan;
4189 struct cfm_settings s;
4190 struct smap netdev_args;
4192 if (!cfg->n_cfm_mpid) {
4193 ofproto_port_clear_cfm(iface->port->bridge->ofproto, iface->ofp_port);
4197 s.check_tnl_key = false;
4198 smap_init(&netdev_args);
4199 if (!netdev_get_config(iface->netdev, &netdev_args)) {
4200 const char *key = smap_get(&netdev_args, "key");
4201 const char *in_key = smap_get(&netdev_args, "in_key");
4203 s.check_tnl_key = (key && !strcmp(key, "flow"))
4204 || (in_key && !strcmp(in_key, "flow"));
4206 smap_destroy(&netdev_args);
4208 s.mpid = *cfg->cfm_mpid;
4209 s.interval = smap_get_int(&iface->cfg->other_config, "cfm_interval", 0);
4210 cfm_ccm_vlan = smap_get(&iface->cfg->other_config, "cfm_ccm_vlan");
4211 s.ccm_pcp = smap_get_int(&iface->cfg->other_config, "cfm_ccm_pcp", 0);
4213 if (s.interval <= 0) {
4217 if (!cfm_ccm_vlan) {
4219 } else if (!strcasecmp("random", cfm_ccm_vlan)) {
4220 s.ccm_vlan = CFM_RANDOM_VLAN;
4222 s.ccm_vlan = atoi(cfm_ccm_vlan);
4223 if (s.ccm_vlan == CFM_RANDOM_VLAN) {
4228 s.extended = smap_get_bool(&iface->cfg->other_config, "cfm_extended",
4230 s.demand = smap_get_bool(&iface->cfg->other_config, "cfm_demand", false);
4232 opstate_str = smap_get(&iface->cfg->other_config, "cfm_opstate");
4233 s.opup = !opstate_str || !strcasecmp("up", opstate_str);
4235 ofproto_port_set_cfm(iface->port->bridge->ofproto, iface->ofp_port, &s);
4238 /* Returns true if 'iface' is synthetic, that is, if we constructed it locally
4239 * instead of obtaining it from the database. */
4241 iface_is_synthetic(const struct iface *iface)
4243 return ovsdb_idl_row_is_synthetic(&iface->cfg->header_);
4247 iface_validate_ofport__(size_t n, int64_t *ofport)
4249 return (n && *ofport >= 1 && *ofport < ofp_to_u16(OFPP_MAX)
4250 ? u16_to_ofp(*ofport)
4255 iface_get_requested_ofp_port(const struct ovsrec_interface *cfg)
4257 return iface_validate_ofport__(cfg->n_ofport_request, cfg->ofport_request);
4261 iface_pick_ofport(const struct ovsrec_interface *cfg)
4263 ofp_port_t requested_ofport = iface_get_requested_ofp_port(cfg);
4264 return (requested_ofport != OFPP_NONE
4266 : iface_validate_ofport__(cfg->n_ofport, cfg->ofport));
4269 /* Port mirroring. */
4271 static struct mirror *
4272 mirror_find_by_uuid(struct bridge *br, const struct uuid *uuid)
4276 HMAP_FOR_EACH_IN_BUCKET (m, hmap_node, uuid_hash(uuid), &br->mirrors) {
4277 if (uuid_equals(uuid, &m->uuid)) {
4285 bridge_configure_mirrors(struct bridge *br)
4287 const struct ovsdb_datum *mc;
4288 unsigned long *flood_vlans;
4289 struct mirror *m, *next;
4292 /* Get rid of deleted mirrors. */
4293 mc = ovsrec_bridge_get_mirrors(br->cfg, OVSDB_TYPE_UUID);
4294 HMAP_FOR_EACH_SAFE (m, next, hmap_node, &br->mirrors) {
4295 union ovsdb_atom atom;
4297 atom.uuid = m->uuid;
4298 if (ovsdb_datum_find_key(mc, &atom, OVSDB_TYPE_UUID) == UINT_MAX) {
4303 /* Add new mirrors and reconfigure existing ones. */
4304 for (i = 0; i < br->cfg->n_mirrors; i++) {
4305 const struct ovsrec_mirror *cfg = br->cfg->mirrors[i];
4306 struct mirror *m = mirror_find_by_uuid(br, &cfg->header_.uuid);
4308 m = mirror_create(br, cfg);
4311 if (!mirror_configure(m)) {
4316 /* Update flooded vlans (for RSPAN). */
4317 flood_vlans = vlan_bitmap_from_array(br->cfg->flood_vlans,
4318 br->cfg->n_flood_vlans);
4319 ofproto_set_flood_vlans(br->ofproto, flood_vlans);
4320 bitmap_free(flood_vlans);
4323 static struct mirror *
4324 mirror_create(struct bridge *br, const struct ovsrec_mirror *cfg)
4328 m = xzalloc(sizeof *m);
4329 m->uuid = cfg->header_.uuid;
4330 hmap_insert(&br->mirrors, &m->hmap_node, uuid_hash(&m->uuid));
4332 m->name = xstrdup(cfg->name);
4338 mirror_destroy(struct mirror *m)
4341 struct bridge *br = m->bridge;
4344 ofproto_mirror_unregister(br->ofproto, m);
4347 hmap_remove(&br->mirrors, &m->hmap_node);
4354 mirror_collect_ports(struct mirror *m,
4355 struct ovsrec_port **in_ports, int n_in_ports,
4356 void ***out_portsp, size_t *n_out_portsp)
4358 void **out_ports = xmalloc(n_in_ports * sizeof *out_ports);
4359 size_t n_out_ports = 0;
4362 for (i = 0; i < n_in_ports; i++) {
4363 const char *name = in_ports[i]->name;
4364 struct port *port = port_lookup(m->bridge, name);
4366 out_ports[n_out_ports++] = port;
4368 VLOG_WARN("bridge %s: mirror %s cannot match on nonexistent "
4369 "port %s", m->bridge->name, m->name, name);
4372 *out_portsp = out_ports;
4373 *n_out_portsp = n_out_ports;
4377 mirror_configure(struct mirror *m)
4379 const struct ovsrec_mirror *cfg = m->cfg;
4380 struct ofproto_mirror_settings s;
4383 if (strcmp(cfg->name, m->name)) {
4385 m->name = xstrdup(cfg->name);
4389 /* Get output port or VLAN. */
4390 if (cfg->output_port) {
4391 s.out_bundle = port_lookup(m->bridge, cfg->output_port->name);
4392 if (!s.out_bundle) {
4393 VLOG_ERR("bridge %s: mirror %s outputs to port not on bridge",
4394 m->bridge->name, m->name);
4397 s.out_vlan = UINT16_MAX;
4399 if (cfg->output_vlan) {
4400 VLOG_ERR("bridge %s: mirror %s specifies both output port and "
4401 "output vlan; ignoring output vlan",
4402 m->bridge->name, m->name);
4404 } else if (cfg->output_vlan) {
4405 /* The database should prevent invalid VLAN values. */
4406 s.out_bundle = NULL;
4407 s.out_vlan = *cfg->output_vlan;
4409 VLOG_ERR("bridge %s: mirror %s does not specify output; ignoring",
4410 m->bridge->name, m->name);
4414 /* Get port selection. */
4415 if (cfg->select_all) {
4416 size_t n_ports = hmap_count(&m->bridge->ports);
4417 void **ports = xmalloc(n_ports * sizeof *ports);
4422 HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) {
4432 /* Get ports, dropping ports that don't exist.
4433 * The IDL ensures that there are no duplicates. */
4434 mirror_collect_ports(m, cfg->select_src_port, cfg->n_select_src_port,
4435 &s.srcs, &s.n_srcs);
4436 mirror_collect_ports(m, cfg->select_dst_port, cfg->n_select_dst_port,
4437 &s.dsts, &s.n_dsts);
4440 /* Get VLAN selection. */
4441 s.src_vlans = vlan_bitmap_from_array(cfg->select_vlan, cfg->n_select_vlan);
4444 ofproto_mirror_register(m->bridge->ofproto, m, &s);
4447 if (s.srcs != s.dsts) {
4456 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
4458 * This is deprecated. It is only for compatibility with broken device drivers
4459 * in old versions of Linux that do not properly support VLANs when VLAN
4460 * devices are not used. When broken device drivers are no longer in
4461 * widespread use, we will delete these interfaces. */
4463 static struct ovsrec_port **recs;
4464 static size_t n_recs, allocated_recs;
4466 /* Adds 'rec' to a list of recs that have to be destroyed when the VLAN
4467 * splinters are reconfigured. */
4469 register_rec(struct ovsrec_port *rec)
4471 if (n_recs >= allocated_recs) {
4472 recs = x2nrealloc(recs, &allocated_recs, sizeof *recs);
4474 recs[n_recs++] = rec;
4477 /* Frees all of the ports registered with register_reg(). */
4479 free_registered_recs(void)
4483 for (i = 0; i < n_recs; i++) {
4484 struct ovsrec_port *port = recs[i];
4487 for (j = 0; j < port->n_interfaces; j++) {
4488 struct ovsrec_interface *iface = port->interfaces[j];
4493 smap_destroy(&port->other_config);
4494 free(port->interfaces);
4502 /* Returns true if VLAN splinters are enabled on 'iface_cfg', false
4505 vlan_splinters_is_enabled(const struct ovsrec_interface *iface_cfg)
4507 return smap_get_bool(&iface_cfg->other_config, "enable-vlan-splinters",
4511 /* Figures out the set of VLANs that are in use for the purpose of VLAN
4514 * If VLAN splinters are enabled on at least one interface and any VLANs are in
4515 * use, returns a 4096-bit bitmap with a 1-bit for each in-use VLAN (bits 0 and
4516 * 4095 will not be set). The caller is responsible for freeing the bitmap,
4519 * If VLANs splinters are not enabled on any interface or if no VLANs are in
4520 * use, returns NULL.
4522 * Updates 'vlan_splinters_enabled_anywhere'. */
4523 static unsigned long int *
4524 collect_splinter_vlans(const struct ovsrec_open_vswitch *ovs_cfg)
4526 unsigned long int *splinter_vlans;
4527 struct sset splinter_ifaces;
4528 const char *real_dev_name;
4529 struct shash *real_devs;
4530 struct shash_node *node;
4534 /* Free space allocated for synthesized ports and interfaces, since we're
4535 * in the process of reconstructing all of them. */
4536 free_registered_recs();
4538 splinter_vlans = bitmap_allocate(4096);
4539 sset_init(&splinter_ifaces);
4540 vlan_splinters_enabled_anywhere = false;
4541 for (i = 0; i < ovs_cfg->n_bridges; i++) {
4542 struct ovsrec_bridge *br_cfg = ovs_cfg->bridges[i];
4545 for (j = 0; j < br_cfg->n_ports; j++) {
4546 struct ovsrec_port *port_cfg = br_cfg->ports[j];
4549 for (k = 0; k < port_cfg->n_interfaces; k++) {
4550 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[k];
4552 if (vlan_splinters_is_enabled(iface_cfg)) {
4553 vlan_splinters_enabled_anywhere = true;
4554 sset_add(&splinter_ifaces, iface_cfg->name);
4555 vlan_bitmap_from_array__(port_cfg->trunks,
4561 if (port_cfg->tag && *port_cfg->tag > 0 && *port_cfg->tag < 4095) {
4562 bitmap_set1(splinter_vlans, *port_cfg->tag);
4567 if (!vlan_splinters_enabled_anywhere) {
4568 free(splinter_vlans);
4569 sset_destroy(&splinter_ifaces);
4573 HMAP_FOR_EACH (br, node, &all_bridges) {
4575 ofproto_get_vlan_usage(br->ofproto, splinter_vlans);
4579 /* Don't allow VLANs 0 or 4095 to be splintered. VLAN 0 should appear on
4580 * the real device. VLAN 4095 is reserved and Linux doesn't allow a VLAN
4581 * device to be created for it. */
4582 bitmap_set0(splinter_vlans, 0);
4583 bitmap_set0(splinter_vlans, 4095);
4585 /* Delete all VLAN devices that we don't need. */
4587 real_devs = vlandev_get_real_devs();
4588 SHASH_FOR_EACH (node, real_devs) {
4589 const struct vlan_real_dev *real_dev = node->data;
4590 const struct vlan_dev *vlan_dev;
4591 bool real_dev_has_splinters;
4593 real_dev_has_splinters = sset_contains(&splinter_ifaces,
4595 HMAP_FOR_EACH (vlan_dev, hmap_node, &real_dev->vlan_devs) {
4596 if (!real_dev_has_splinters
4597 || !bitmap_is_set(splinter_vlans, vlan_dev->vid)) {
4598 struct netdev *netdev;
4600 if (!netdev_open(vlan_dev->name, "system", &netdev)) {
4601 if (!netdev_get_in4(netdev, NULL, NULL) ||
4602 !netdev_get_in6(netdev, NULL)) {
4603 /* It has an IP address configured, so we don't own
4604 * it. Don't delete it. */
4606 vlandev_del(vlan_dev->name);
4608 netdev_close(netdev);
4615 /* Add all VLAN devices that we need. */
4616 SSET_FOR_EACH (real_dev_name, &splinter_ifaces) {
4619 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
4620 if (!vlandev_get_name(real_dev_name, vid)) {
4621 vlandev_add(real_dev_name, vid);
4628 sset_destroy(&splinter_ifaces);
4630 if (bitmap_scan(splinter_vlans, 1, 0, 4096) >= 4096) {
4631 free(splinter_vlans);
4634 return splinter_vlans;
4637 /* Pushes the configure of VLAN splinter port 'port' (e.g. eth0.9) down to
4640 configure_splinter_port(struct port *port)
4642 struct ofproto *ofproto = port->bridge->ofproto;
4643 ofp_port_t realdev_ofp_port;
4644 const char *realdev_name;
4645 struct iface *vlandev, *realdev;
4647 ofproto_bundle_unregister(port->bridge->ofproto, port);
4649 vlandev = CONTAINER_OF(list_front(&port->ifaces), struct iface,
4652 realdev_name = smap_get(&port->cfg->other_config, "realdev");
4653 realdev = iface_lookup(port->bridge, realdev_name);
4654 realdev_ofp_port = realdev ? realdev->ofp_port : 0;
4656 ofproto_port_set_realdev(ofproto, vlandev->ofp_port, realdev_ofp_port,
4660 static struct ovsrec_port *
4661 synthesize_splinter_port(const char *real_dev_name,
4662 const char *vlan_dev_name, int vid)
4664 struct ovsrec_interface *iface;
4665 struct ovsrec_port *port;
4667 iface = xmalloc(sizeof *iface);
4668 ovsrec_interface_init(iface);
4669 iface->name = xstrdup(vlan_dev_name);
4670 iface->type = "system";
4672 port = xmalloc(sizeof *port);
4673 ovsrec_port_init(port);
4674 port->interfaces = xmemdup(&iface, sizeof iface);
4675 port->n_interfaces = 1;
4676 port->name = xstrdup(vlan_dev_name);
4677 port->vlan_mode = "splinter";
4678 port->tag = xmalloc(sizeof *port->tag);
4681 smap_add(&port->other_config, "realdev", real_dev_name);
4687 /* For each interface with 'br' that has VLAN splinters enabled, adds a
4688 * corresponding ovsrec_port to 'ports' for each splinter VLAN marked with a
4689 * 1-bit in the 'splinter_vlans' bitmap. */
4691 add_vlan_splinter_ports(struct bridge *br,
4692 const unsigned long int *splinter_vlans,
4693 struct shash *ports)
4697 /* We iterate through 'br->cfg->ports' instead of 'ports' here because
4698 * we're modifying 'ports'. */
4699 for (i = 0; i < br->cfg->n_ports; i++) {
4700 const char *name = br->cfg->ports[i]->name;
4701 struct ovsrec_port *port_cfg = shash_find_data(ports, name);
4704 for (j = 0; j < port_cfg->n_interfaces; j++) {
4705 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[j];
4707 if (vlan_splinters_is_enabled(iface_cfg)) {
4708 const char *real_dev_name;
4711 real_dev_name = iface_cfg->name;
4712 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
4713 const char *vlan_dev_name;
4715 vlan_dev_name = vlandev_get_name(real_dev_name, vid);
4717 && !shash_find(ports, vlan_dev_name)) {
4718 shash_add(ports, vlan_dev_name,
4719 synthesize_splinter_port(
4720 real_dev_name, vlan_dev_name, vid));
4729 mirror_refresh_stats(struct mirror *m)
4731 struct ofproto *ofproto = m->bridge->ofproto;
4732 uint64_t tx_packets, tx_bytes;
4733 const char *keys[2];
4735 size_t stat_cnt = 0;
4737 if (ofproto_mirror_get_stats(ofproto, m, &tx_packets, &tx_bytes)) {
4738 ovsrec_mirror_set_statistics(m->cfg, NULL, NULL, 0);
4742 if (tx_packets != UINT64_MAX) {
4743 keys[stat_cnt] = "tx_packets";
4744 values[stat_cnt] = tx_packets;
4747 if (tx_bytes != UINT64_MAX) {
4748 keys[stat_cnt] = "tx_bytes";
4749 values[stat_cnt] = tx_bytes;
4753 ovsrec_mirror_set_statistics(m->cfg, keys, values, stat_cnt);