1 /* Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira Networks
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.
28 #include "dynamic-string.h"
35 #include "mac-learning.h"
36 #include "meta-flow.h"
38 #include "ofp-print.h"
40 #include "ofproto/ofproto.h"
41 #include "poll-loop.h"
44 #include "socket-util.h"
46 #include "stream-ssl.h"
48 #include "system-stats.h"
53 #include "vswitchd/vswitch-idl.h"
54 #include "xenserver.h"
56 #include "sflow_api.h"
57 #include "vlan-bitmap.h"
59 VLOG_DEFINE_THIS_MODULE(bridge);
61 COVERAGE_DEFINE(bridge_reconfigure);
63 /* Configuration of an uninstantiated iface. */
65 struct hmap_node hmap_node; /* Node in bridge's if_cfg_todo. */
66 const struct ovsrec_interface *cfg; /* Interface record. */
67 const struct ovsrec_port *parent; /* Parent port record. */
70 /* OpenFlow port slated for removal from ofproto. */
72 struct list list_node; /* Node in bridge's ofpp_garbage. */
73 uint16_t ofp_port; /* Port to be deleted. */
77 /* These members are always valid. */
78 struct list port_elem; /* Element in struct port's "ifaces" list. */
79 struct hmap_node name_node; /* In struct bridge's "iface_by_name" hmap. */
80 struct port *port; /* Containing port. */
81 char *name; /* Host network device name. */
83 /* These members are valid only after bridge_reconfigure() causes them to
85 struct hmap_node ofp_port_node; /* In struct bridge's "ifaces" hmap. */
86 int ofp_port; /* OpenFlow port number, -1 if unknown. */
87 struct netdev *netdev; /* Network device. */
88 const char *type; /* Usually same as cfg->type. */
89 const struct ovsrec_interface *cfg;
93 struct uuid uuid; /* UUID of this "mirror" record in database. */
94 struct hmap_node hmap_node; /* In struct bridge's "mirrors" hmap. */
95 struct bridge *bridge;
97 const struct ovsrec_mirror *cfg;
101 struct bridge *bridge;
102 struct hmap_node hmap_node; /* Element in struct bridge's "ports" hmap. */
105 const struct ovsrec_port *cfg;
107 /* An ordinary bridge port has 1 interface.
108 * A bridge port for bonding has at least 2 interfaces. */
109 struct list ifaces; /* List of "struct iface"s. */
113 struct hmap_node node; /* In 'all_bridges'. */
114 char *name; /* User-specified arbitrary name. */
115 char *type; /* Datapath type. */
116 uint8_t ea[ETH_ADDR_LEN]; /* Bridge Ethernet Address. */
117 uint8_t default_ea[ETH_ADDR_LEN]; /* Default MAC. */
118 const struct ovsrec_bridge *cfg;
120 /* OpenFlow switch processing. */
121 struct ofproto *ofproto; /* OpenFlow switch. */
124 struct hmap ports; /* "struct port"s indexed by name. */
125 struct hmap ifaces; /* "struct iface"s indexed by ofp_port. */
126 struct hmap iface_by_name; /* "struct iface"s indexed by name. */
128 struct list ofpp_garbage; /* "struct ofpp_garbage" slated for removal. */
129 struct hmap if_cfg_todo; /* "struct if_cfg"s slated for creation.
130 Indexed on 'cfg->name'. */
132 /* Port mirroring. */
133 struct hmap mirrors; /* "struct mirror" indexed by UUID. */
135 /* Synthetic local port if necessary. */
136 struct ovsrec_port synth_local_port;
137 struct ovsrec_interface synth_local_iface;
138 struct ovsrec_interface *synth_local_ifacep;
141 /* All bridges, indexed by name. */
142 static struct hmap all_bridges = HMAP_INITIALIZER(&all_bridges);
144 /* OVSDB IDL used to obtain configuration. */
145 static struct ovsdb_idl *idl;
147 /* Each time this timer expires, the bridge fetches systems and interface
148 * statistics and pushes them into the database. */
149 #define STATS_INTERVAL (5 * 1000) /* In milliseconds. */
150 static long long int stats_timer = LLONG_MIN;
152 /* Stores the time after which rate limited statistics may be written to the
153 * database. Only updated when changes to the database require rate limiting.
155 #define DB_LIMIT_INTERVAL (1 * 1000) /* In milliseconds. */
156 static long long int db_limiter = LLONG_MIN;
158 /* In some datapaths, creating and destroying OpenFlow ports can be extremely
159 * expensive. This can cause bridge_reconfigure() to take a long time during
160 * which no other work can be done. To deal with this problem, we limit port
161 * adds and deletions to a window of OFP_PORT_ACTION_WINDOW milliseconds per
162 * call to bridge_reconfigure(). If there is more work to do after the limit
163 * is reached, 'need_reconfigure', is flagged and it's done on the next loop.
164 * This allows the rest of the code to catch up on important things like
165 * forwarding packets. */
166 #define OFP_PORT_ACTION_WINDOW 10
167 static bool reconfiguring = false;
169 static void add_del_bridges(const struct ovsrec_open_vswitch *);
170 static void bridge_update_ofprotos(void);
171 static void bridge_create(const struct ovsrec_bridge *);
172 static void bridge_destroy(struct bridge *);
173 static struct bridge *bridge_lookup(const char *name);
174 static unixctl_cb_func bridge_unixctl_dump_flows;
175 static unixctl_cb_func bridge_unixctl_reconnect;
176 static size_t bridge_get_controllers(const struct bridge *br,
177 struct ovsrec_controller ***controllersp);
178 static void bridge_add_del_ports(struct bridge *,
179 const unsigned long int *splinter_vlans);
180 static void bridge_refresh_ofp_port(struct bridge *);
181 static void bridge_configure_datapath_id(struct bridge *);
182 static void bridge_configure_flow_eviction_threshold(struct bridge *);
183 static void bridge_configure_netflow(struct bridge *);
184 static void bridge_configure_forward_bpdu(struct bridge *);
185 static void bridge_configure_mac_idle_time(struct bridge *);
186 static void bridge_configure_sflow(struct bridge *, int *sflow_bridge_number);
187 static void bridge_configure_stp(struct bridge *);
188 static void bridge_configure_tables(struct bridge *);
189 static void bridge_configure_remotes(struct bridge *,
190 const struct sockaddr_in *managers,
192 static void bridge_pick_local_hw_addr(struct bridge *,
193 uint8_t ea[ETH_ADDR_LEN],
194 struct iface **hw_addr_iface);
195 static uint64_t bridge_pick_datapath_id(struct bridge *,
196 const uint8_t bridge_ea[ETH_ADDR_LEN],
197 struct iface *hw_addr_iface);
198 static const char *bridge_get_other_config(const struct ovsrec_bridge *,
200 static const char *get_port_other_config(const struct ovsrec_port *,
202 const char *default_value);
203 static void bridge_queue_if_cfg(struct bridge *,
204 const struct ovsrec_interface *,
205 const struct ovsrec_port *);
206 static uint64_t dpid_from_hash(const void *, size_t nbytes);
207 static bool bridge_has_bond_fake_iface(const struct bridge *,
209 static bool port_is_bond_fake_iface(const struct port *);
211 static unixctl_cb_func qos_unixctl_show;
213 static struct port *port_create(struct bridge *, const struct ovsrec_port *);
214 static void port_del_ifaces(struct port *);
215 static void port_destroy(struct port *);
216 static struct port *port_lookup(const struct bridge *, const char *name);
217 static void port_configure(struct port *);
218 static struct lacp_settings *port_configure_lacp(struct port *,
219 struct lacp_settings *);
220 static void port_configure_bond(struct port *, struct bond_settings *,
221 uint32_t *bond_stable_ids);
222 static bool port_is_synthetic(const struct port *);
224 static void bridge_configure_mirrors(struct bridge *);
225 static struct mirror *mirror_create(struct bridge *,
226 const struct ovsrec_mirror *);
227 static void mirror_destroy(struct mirror *);
228 static bool mirror_configure(struct mirror *);
229 static void mirror_refresh_stats(struct mirror *);
231 static void iface_configure_lacp(struct iface *, struct lacp_slave_settings *);
232 static bool iface_create(struct bridge *, struct if_cfg *, int ofp_port);
233 static const char *iface_get_type(const struct ovsrec_interface *,
234 const struct ovsrec_bridge *);
235 static void iface_destroy(struct iface *);
236 static struct iface *iface_lookup(const struct bridge *, const char *name);
237 static struct iface *iface_find(const char *name);
238 static struct if_cfg *if_cfg_lookup(const struct bridge *, const char *name);
239 static struct iface *iface_from_ofp_port(const struct bridge *,
241 static void iface_set_mac(struct iface *);
242 static void iface_set_ofport(const struct ovsrec_interface *, int64_t ofport);
243 static void iface_clear_db_record(const struct ovsrec_interface *if_cfg);
244 static void iface_configure_qos(struct iface *, const struct ovsrec_qos *);
245 static void iface_configure_cfm(struct iface *);
246 static void iface_refresh_cfm_stats(struct iface *);
247 static void iface_refresh_stats(struct iface *);
248 static void iface_refresh_status(struct iface *);
249 static bool iface_is_synthetic(const struct iface *);
250 static const char *get_interface_other_config(const struct ovsrec_interface *,
252 const char *default_value);
254 static void shash_from_ovs_idl_map(char **keys, char **values, size_t n,
256 static void shash_to_ovs_idl_map(struct shash *,
257 char ***keys, char ***values, size_t *n);
259 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
261 * This is deprecated. It is only for compatibility with broken device drivers
262 * in old versions of Linux that do not properly support VLANs when VLAN
263 * devices are not used. When broken device drivers are no longer in
264 * widespread use, we will delete these interfaces. */
266 /* True if VLAN splinters are enabled on any interface, false otherwise.*/
267 static bool vlan_splinters_enabled_anywhere;
269 static bool vlan_splinters_is_enabled(const struct ovsrec_interface *);
270 static unsigned long int *collect_splinter_vlans(
271 const struct ovsrec_open_vswitch *);
272 static void configure_splinter_port(struct port *);
273 static void add_vlan_splinter_ports(struct bridge *,
274 const unsigned long int *splinter_vlans,
275 struct shash *ports);
277 /* Public functions. */
279 /* Initializes the bridge module, configuring it to obtain its configuration
280 * from an OVSDB server accessed over 'remote', which should be a string in a
281 * form acceptable to ovsdb_idl_create(). */
283 bridge_init(const char *remote)
285 /* Create connection to database. */
286 idl = ovsdb_idl_create(remote, &ovsrec_idl_class, true);
287 ovsdb_idl_set_lock(idl, "ovs_vswitchd");
289 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_cur_cfg);
290 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_statistics);
291 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_external_ids);
292 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_ovs_version);
293 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_db_version);
294 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_type);
295 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_version);
297 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_datapath_id);
298 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_status);
299 ovsdb_idl_omit(idl, &ovsrec_bridge_col_external_ids);
301 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_status);
302 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_statistics);
303 ovsdb_idl_omit(idl, &ovsrec_port_col_external_ids);
304 ovsdb_idl_omit(idl, &ovsrec_port_col_fake_bridge);
306 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_admin_state);
307 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_duplex);
308 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_speed);
309 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_state);
310 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_resets);
311 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mtu);
312 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ofport);
313 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_statistics);
314 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_status);
315 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault);
316 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault_status);
317 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_remote_mpids);
318 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_lacp_current);
319 ovsdb_idl_omit(idl, &ovsrec_interface_col_external_ids);
321 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_is_connected);
322 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_role);
323 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_status);
324 ovsdb_idl_omit(idl, &ovsrec_controller_col_external_ids);
326 ovsdb_idl_omit(idl, &ovsrec_qos_col_external_ids);
328 ovsdb_idl_omit(idl, &ovsrec_queue_col_external_ids);
330 ovsdb_idl_omit(idl, &ovsrec_mirror_col_external_ids);
331 ovsdb_idl_omit_alert(idl, &ovsrec_mirror_col_statistics);
333 ovsdb_idl_omit(idl, &ovsrec_netflow_col_external_ids);
335 ovsdb_idl_omit(idl, &ovsrec_sflow_col_external_ids);
337 ovsdb_idl_omit(idl, &ovsrec_manager_col_external_ids);
338 ovsdb_idl_omit(idl, &ovsrec_manager_col_inactivity_probe);
339 ovsdb_idl_omit(idl, &ovsrec_manager_col_is_connected);
340 ovsdb_idl_omit(idl, &ovsrec_manager_col_max_backoff);
341 ovsdb_idl_omit(idl, &ovsrec_manager_col_status);
343 ovsdb_idl_omit(idl, &ovsrec_ssl_col_external_ids);
345 /* Register unixctl commands. */
346 unixctl_command_register("qos/show", "interface", 1, 1,
347 qos_unixctl_show, NULL);
348 unixctl_command_register("bridge/dump-flows", "bridge", 1, 1,
349 bridge_unixctl_dump_flows, NULL);
350 unixctl_command_register("bridge/reconnect", "[bridge]", 0, 1,
351 bridge_unixctl_reconnect, NULL);
361 struct bridge *br, *next_br;
363 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
366 ovsdb_idl_destroy(idl);
369 /* Looks at the list of managers in 'ovs_cfg' and extracts their remote IP
370 * addresses and ports into '*managersp' and '*n_managersp'. The caller is
371 * responsible for freeing '*managersp' (with free()).
373 * You may be asking yourself "why does ovs-vswitchd care?", because
374 * ovsdb-server is responsible for connecting to the managers, and ovs-vswitchd
375 * should not be and in fact is not directly involved in that. But
376 * ovs-vswitchd needs to make sure that ovsdb-server can reach the managers, so
377 * it has to tell in-band control where the managers are to enable that.
378 * (Thus, only managers connected in-band are collected.)
381 collect_in_band_managers(const struct ovsrec_open_vswitch *ovs_cfg,
382 struct sockaddr_in **managersp, size_t *n_managersp)
384 struct sockaddr_in *managers = NULL;
385 size_t n_managers = 0;
389 /* Collect all of the potential targets from the "targets" columns of the
390 * rows pointed to by "manager_options", excluding any that are
393 for (i = 0; i < ovs_cfg->n_manager_options; i++) {
394 struct ovsrec_manager *m = ovs_cfg->manager_options[i];
396 if (m->connection_mode && !strcmp(m->connection_mode, "out-of-band")) {
397 sset_find_and_delete(&targets, m->target);
399 sset_add(&targets, m->target);
403 /* Now extract the targets' IP addresses. */
404 if (!sset_is_empty(&targets)) {
407 managers = xmalloc(sset_count(&targets) * sizeof *managers);
408 SSET_FOR_EACH (target, &targets) {
409 struct sockaddr_in *sin = &managers[n_managers];
411 if (stream_parse_target_with_default_ports(target,
419 sset_destroy(&targets);
421 *managersp = managers;
422 *n_managersp = n_managers;
426 bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
428 unsigned long int *splinter_vlans;
431 COVERAGE_INC(bridge_reconfigure);
433 assert(!reconfiguring);
434 reconfiguring = true;
436 /* Destroy "struct bridge"s, "struct port"s, and "struct iface"s according
437 * to 'ovs_cfg' while update the "if_cfg_queue", with only very minimal
438 * configuration otherwise.
440 * This is mostly an update to bridge data structures. Nothing is pushed
441 * down to ofproto or lower layers. */
442 add_del_bridges(ovs_cfg);
443 splinter_vlans = collect_splinter_vlans(ovs_cfg);
444 HMAP_FOR_EACH (br, node, &all_bridges) {
445 bridge_add_del_ports(br, splinter_vlans);
447 free(splinter_vlans);
449 /* Delete datapaths that are no longer configured, and create ones which
450 * don't exist but should. */
451 bridge_update_ofprotos();
453 /* Make sure each "struct iface" has a correct ofp_port in its ofproto. */
454 HMAP_FOR_EACH (br, node, &all_bridges) {
455 bridge_refresh_ofp_port(br);
458 /* Clear database records for "if_cfg"s which haven't been instantiated. */
459 HMAP_FOR_EACH (br, node, &all_bridges) {
460 struct if_cfg *if_cfg;
462 HMAP_FOR_EACH (if_cfg, hmap_node, &br->if_cfg_todo) {
463 iface_clear_db_record(if_cfg->cfg);
469 bridge_reconfigure_ofp(void)
471 long long int deadline;
475 deadline = time_msec() + OFP_PORT_ACTION_WINDOW;
477 /* The kernel will reject any attempt to add a given port to a datapath if
478 * that port already belongs to a different datapath, so we must do all
479 * port deletions before any port additions. */
480 HMAP_FOR_EACH (br, node, &all_bridges) {
481 struct ofpp_garbage *garbage, *next;
483 LIST_FOR_EACH_SAFE (garbage, next, list_node, &br->ofpp_garbage) {
484 ofproto_port_del(br->ofproto, garbage->ofp_port);
485 list_remove(&garbage->list_node);
489 if (time_msec() >= deadline) {
495 HMAP_FOR_EACH (br, node, &all_bridges) {
496 struct if_cfg *if_cfg, *next;
498 HMAP_FOR_EACH_SAFE (if_cfg, next, hmap_node, &br->if_cfg_todo) {
499 iface_create(br, if_cfg, -1);
501 if (time_msec() >= deadline) {
511 bridge_reconfigure_continue(const struct ovsrec_open_vswitch *ovs_cfg)
513 struct sockaddr_in *managers;
514 int sflow_bridge_number;
519 assert(reconfiguring);
520 done = bridge_reconfigure_ofp();
522 /* Complete the configuration. */
523 sflow_bridge_number = 0;
524 collect_in_band_managers(ovs_cfg, &managers, &n_managers);
525 HMAP_FOR_EACH (br, node, &all_bridges) {
528 /* We need the datapath ID early to allow LACP ports to use it as the
529 * default system ID. */
530 bridge_configure_datapath_id(br);
532 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
535 port_configure(port);
537 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
538 iface_configure_cfm(iface);
539 iface_configure_qos(iface, port->cfg->qos);
540 iface_set_mac(iface);
543 bridge_configure_mirrors(br);
544 bridge_configure_flow_eviction_threshold(br);
545 bridge_configure_forward_bpdu(br);
546 bridge_configure_mac_idle_time(br);
547 bridge_configure_remotes(br, managers, n_managers);
548 bridge_configure_netflow(br);
549 bridge_configure_sflow(br, &sflow_bridge_number);
550 bridge_configure_stp(br);
551 bridge_configure_tables(br);
556 /* ovs-vswitchd has completed initialization, so allow the process that
557 * forked us to exit successfully. */
558 daemonize_complete();
559 reconfiguring = false;
565 /* Delete ofprotos which aren't configured or have the wrong type. Create
566 * ofprotos which don't exist but need to. */
568 bridge_update_ofprotos(void)
570 struct bridge *br, *next;
575 /* Delete ofprotos with no bridge or with the wrong type. */
578 ofproto_enumerate_types(&types);
579 SSET_FOR_EACH (type, &types) {
582 ofproto_enumerate_names(type, &names);
583 SSET_FOR_EACH (name, &names) {
584 br = bridge_lookup(name);
585 if (!br || strcmp(type, br->type)) {
586 ofproto_delete(name, type);
590 sset_destroy(&names);
591 sset_destroy(&types);
593 /* Add ofprotos for bridges which don't have one yet. */
594 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
602 /* Remove ports from any datapath with the same name as 'br'. If we
603 * don't do this, creating 'br''s ofproto will fail because a port with
604 * the same name as its local port already exists. */
605 HMAP_FOR_EACH (br2, node, &all_bridges) {
606 struct ofproto_port ofproto_port;
612 if (!ofproto_port_query_by_name(br2->ofproto, br->name,
614 error = ofproto_port_del(br2->ofproto, ofproto_port.ofp_port);
616 VLOG_ERR("failed to delete port %s: %s", ofproto_port.name,
619 ofproto_port_destroy(&ofproto_port);
623 error = ofproto_create(br->name, br->type, &br->ofproto);
625 VLOG_ERR("failed to create bridge %s: %s", br->name,
633 port_configure(struct port *port)
635 const struct ovsrec_port *cfg = port->cfg;
636 struct bond_settings bond_settings;
637 struct lacp_settings lacp_settings;
638 struct ofproto_bundle_settings s;
641 if (cfg->vlan_mode && !strcmp(cfg->vlan_mode, "splinter")) {
642 configure_splinter_port(port);
651 s.slaves = xmalloc(list_size(&port->ifaces) * sizeof *s.slaves);
652 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
653 s.slaves[s.n_slaves++] = iface->ofp_port;
658 if (cfg->tag && *cfg->tag >= 0 && *cfg->tag <= 4095) {
662 /* Get VLAN trunks. */
665 s.trunks = vlan_bitmap_from_array(cfg->trunks, cfg->n_trunks);
669 if (cfg->vlan_mode) {
670 if (!strcmp(cfg->vlan_mode, "access")) {
671 s.vlan_mode = PORT_VLAN_ACCESS;
672 } else if (!strcmp(cfg->vlan_mode, "trunk")) {
673 s.vlan_mode = PORT_VLAN_TRUNK;
674 } else if (!strcmp(cfg->vlan_mode, "native-tagged")) {
675 s.vlan_mode = PORT_VLAN_NATIVE_TAGGED;
676 } else if (!strcmp(cfg->vlan_mode, "native-untagged")) {
677 s.vlan_mode = PORT_VLAN_NATIVE_UNTAGGED;
679 /* This "can't happen" because ovsdb-server should prevent it. */
680 VLOG_ERR("unknown VLAN mode %s", cfg->vlan_mode);
681 s.vlan_mode = PORT_VLAN_TRUNK;
685 s.vlan_mode = PORT_VLAN_ACCESS;
687 VLOG_ERR("port %s: ignoring trunks in favor of implicit vlan",
691 s.vlan_mode = PORT_VLAN_TRUNK;
694 s.use_priority_tags = !strcmp("true", get_port_other_config(
695 cfg, "priority-tags", ""));
697 /* Get LACP settings. */
698 s.lacp = port_configure_lacp(port, &lacp_settings);
702 s.lacp_slaves = xmalloc(s.n_slaves * sizeof *s.lacp_slaves);
703 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
704 iface_configure_lacp(iface, &s.lacp_slaves[i++]);
707 s.lacp_slaves = NULL;
710 /* Get bond settings. */
711 if (s.n_slaves > 1) {
712 s.bond = &bond_settings;
713 s.bond_stable_ids = xmalloc(s.n_slaves * sizeof *s.bond_stable_ids);
714 port_configure_bond(port, &bond_settings, s.bond_stable_ids);
717 s.bond_stable_ids = NULL;
719 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
720 netdev_set_miimon_interval(iface->netdev, 0);
725 ofproto_bundle_register(port->bridge->ofproto, port, &s);
731 free(s.bond_stable_ids);
734 /* Pick local port hardware address and datapath ID for 'br'. */
736 bridge_configure_datapath_id(struct bridge *br)
738 uint8_t ea[ETH_ADDR_LEN];
740 struct iface *local_iface;
741 struct iface *hw_addr_iface;
744 bridge_pick_local_hw_addr(br, ea, &hw_addr_iface);
745 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
747 int error = netdev_set_etheraddr(local_iface->netdev, ea);
749 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
750 VLOG_ERR_RL(&rl, "bridge %s: failed to set bridge "
751 "Ethernet address: %s",
752 br->name, strerror(error));
755 memcpy(br->ea, ea, ETH_ADDR_LEN);
757 dpid = bridge_pick_datapath_id(br, ea, hw_addr_iface);
758 ofproto_set_datapath_id(br->ofproto, dpid);
760 dpid_string = xasprintf("%016"PRIx64, dpid);
761 ovsrec_bridge_set_datapath_id(br->cfg, dpid_string);
765 /* Set NetFlow configuration on 'br'. */
767 bridge_configure_netflow(struct bridge *br)
769 struct ovsrec_netflow *cfg = br->cfg->netflow;
770 struct netflow_options opts;
773 ofproto_set_netflow(br->ofproto, NULL);
777 memset(&opts, 0, sizeof opts);
779 /* Get default NetFlow configuration from datapath.
780 * Apply overrides from 'cfg'. */
781 ofproto_get_netflow_ids(br->ofproto, &opts.engine_type, &opts.engine_id);
782 if (cfg->engine_type) {
783 opts.engine_type = *cfg->engine_type;
785 if (cfg->engine_id) {
786 opts.engine_id = *cfg->engine_id;
789 /* Configure active timeout interval. */
790 opts.active_timeout = cfg->active_timeout;
791 if (!opts.active_timeout) {
792 opts.active_timeout = -1;
793 } else if (opts.active_timeout < 0) {
794 VLOG_WARN("bridge %s: active timeout interval set to negative "
795 "value, using default instead (%d seconds)", br->name,
796 NF_ACTIVE_TIMEOUT_DEFAULT);
797 opts.active_timeout = -1;
800 /* Add engine ID to interface number to disambiguate bridgs? */
801 opts.add_id_to_iface = cfg->add_id_to_interface;
802 if (opts.add_id_to_iface) {
803 if (opts.engine_id > 0x7f) {
804 VLOG_WARN("bridge %s: NetFlow port mangling may conflict with "
805 "another vswitch, choose an engine id less than 128",
808 if (hmap_count(&br->ports) > 508) {
809 VLOG_WARN("bridge %s: NetFlow port mangling will conflict with "
810 "another port when more than 508 ports are used",
816 sset_init(&opts.collectors);
817 sset_add_array(&opts.collectors, cfg->targets, cfg->n_targets);
820 if (ofproto_set_netflow(br->ofproto, &opts)) {
821 VLOG_ERR("bridge %s: problem setting netflow collectors", br->name);
823 sset_destroy(&opts.collectors);
826 /* Set sFlow configuration on 'br'. */
828 bridge_configure_sflow(struct bridge *br, int *sflow_bridge_number)
830 const struct ovsrec_sflow *cfg = br->cfg->sflow;
831 struct ovsrec_controller **controllers;
832 struct ofproto_sflow_options oso;
833 size_t n_controllers;
837 ofproto_set_sflow(br->ofproto, NULL);
841 memset(&oso, 0, sizeof oso);
843 sset_init(&oso.targets);
844 sset_add_array(&oso.targets, cfg->targets, cfg->n_targets);
846 oso.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
848 oso.sampling_rate = *cfg->sampling;
851 oso.polling_interval = SFL_DEFAULT_POLLING_INTERVAL;
853 oso.polling_interval = *cfg->polling;
856 oso.header_len = SFL_DEFAULT_HEADER_SIZE;
858 oso.header_len = *cfg->header;
861 oso.sub_id = (*sflow_bridge_number)++;
862 oso.agent_device = cfg->agent;
864 oso.control_ip = NULL;
865 n_controllers = bridge_get_controllers(br, &controllers);
866 for (i = 0; i < n_controllers; i++) {
867 if (controllers[i]->local_ip) {
868 oso.control_ip = controllers[i]->local_ip;
872 ofproto_set_sflow(br->ofproto, &oso);
874 sset_destroy(&oso.targets);
878 port_configure_stp(const struct ofproto *ofproto, struct port *port,
879 struct ofproto_port_stp_settings *port_s,
880 int *port_num_counter, unsigned long *port_num_bitmap)
882 const char *config_str;
885 config_str = get_port_other_config(port->cfg, "stp-enable", NULL);
886 if (config_str && !strcmp(config_str, "false")) {
887 port_s->enable = false;
890 port_s->enable = true;
893 /* STP over bonds is not supported. */
894 if (!list_is_singleton(&port->ifaces)) {
895 VLOG_ERR("port %s: cannot enable STP on bonds, disabling",
897 port_s->enable = false;
901 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
903 /* Internal ports shouldn't participate in spanning tree, so
905 if (!strcmp(iface->type, "internal")) {
906 VLOG_DBG("port %s: disable STP on internal ports", port->name);
907 port_s->enable = false;
911 /* STP on mirror output ports is not supported. */
912 if (ofproto_is_mirror_output_bundle(ofproto, port)) {
913 VLOG_DBG("port %s: disable STP on mirror ports", port->name);
914 port_s->enable = false;
918 config_str = get_port_other_config(port->cfg, "stp-port-num", NULL);
920 unsigned long int port_num = strtoul(config_str, NULL, 0);
921 int port_idx = port_num - 1;
923 if (port_num < 1 || port_num > STP_MAX_PORTS) {
924 VLOG_ERR("port %s: invalid stp-port-num", port->name);
925 port_s->enable = false;
929 if (bitmap_is_set(port_num_bitmap, port_idx)) {
930 VLOG_ERR("port %s: duplicate stp-port-num %lu, disabling",
931 port->name, port_num);
932 port_s->enable = false;
935 bitmap_set1(port_num_bitmap, port_idx);
936 port_s->port_num = port_idx;
938 if (*port_num_counter > STP_MAX_PORTS) {
939 VLOG_ERR("port %s: too many STP ports, disabling", port->name);
940 port_s->enable = false;
944 port_s->port_num = (*port_num_counter)++;
947 config_str = get_port_other_config(port->cfg, "stp-path-cost", NULL);
949 port_s->path_cost = strtoul(config_str, NULL, 10);
953 if (netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL)) {
954 /* Couldn't get speed, so assume 100Mb/s. */
955 port_s->path_cost = 19;
959 mbps = netdev_features_to_bps(current) / 1000000;
960 port_s->path_cost = stp_convert_speed_to_cost(mbps);
964 config_str = get_port_other_config(port->cfg, "stp-port-priority", NULL);
966 port_s->priority = strtoul(config_str, NULL, 0);
968 port_s->priority = STP_DEFAULT_PORT_PRIORITY;
972 /* Set spanning tree configuration on 'br'. */
974 bridge_configure_stp(struct bridge *br)
976 if (!br->cfg->stp_enable) {
977 ofproto_set_stp(br->ofproto, NULL);
979 struct ofproto_stp_settings br_s;
980 const char *config_str;
982 int port_num_counter;
983 unsigned long *port_num_bitmap;
985 config_str = bridge_get_other_config(br->cfg, "stp-system-id");
987 uint8_t ea[ETH_ADDR_LEN];
989 if (eth_addr_from_string(config_str, ea)) {
990 br_s.system_id = eth_addr_to_uint64(ea);
992 br_s.system_id = eth_addr_to_uint64(br->ea);
993 VLOG_ERR("bridge %s: invalid stp-system-id, defaulting "
994 "to "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(br->ea));
997 br_s.system_id = eth_addr_to_uint64(br->ea);
1000 config_str = bridge_get_other_config(br->cfg, "stp-priority");
1002 br_s.priority = strtoul(config_str, NULL, 0);
1004 br_s.priority = STP_DEFAULT_BRIDGE_PRIORITY;
1007 config_str = bridge_get_other_config(br->cfg, "stp-hello-time");
1009 br_s.hello_time = strtoul(config_str, NULL, 10) * 1000;
1011 br_s.hello_time = STP_DEFAULT_HELLO_TIME;
1014 config_str = bridge_get_other_config(br->cfg, "stp-max-age");
1016 br_s.max_age = strtoul(config_str, NULL, 10) * 1000;
1018 br_s.max_age = STP_DEFAULT_MAX_AGE;
1021 config_str = bridge_get_other_config(br->cfg, "stp-forward-delay");
1023 br_s.fwd_delay = strtoul(config_str, NULL, 10) * 1000;
1025 br_s.fwd_delay = STP_DEFAULT_FWD_DELAY;
1028 /* Configure STP on the bridge. */
1029 if (ofproto_set_stp(br->ofproto, &br_s)) {
1030 VLOG_ERR("bridge %s: could not enable STP", br->name);
1034 /* Users must either set the port number with the "stp-port-num"
1035 * configuration on all ports or none. If manual configuration
1036 * is not done, then we allocate them sequentially. */
1037 port_num_counter = 0;
1038 port_num_bitmap = bitmap_allocate(STP_MAX_PORTS);
1039 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1040 struct ofproto_port_stp_settings port_s;
1041 struct iface *iface;
1043 port_configure_stp(br->ofproto, port, &port_s,
1044 &port_num_counter, port_num_bitmap);
1046 /* As bonds are not supported, just apply configuration to
1047 * all interfaces. */
1048 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1049 if (ofproto_port_set_stp(br->ofproto, iface->ofp_port,
1051 VLOG_ERR("port %s: could not enable STP", port->name);
1057 if (bitmap_scan(port_num_bitmap, 0, STP_MAX_PORTS) != STP_MAX_PORTS
1058 && port_num_counter) {
1059 VLOG_ERR("bridge %s: must manually configure all STP port "
1060 "IDs or none, disabling", br->name);
1061 ofproto_set_stp(br->ofproto, NULL);
1063 bitmap_free(port_num_bitmap);
1068 bridge_has_bond_fake_iface(const struct bridge *br, const char *name)
1070 const struct port *port = port_lookup(br, name);
1071 return port && port_is_bond_fake_iface(port);
1075 port_is_bond_fake_iface(const struct port *port)
1077 return port->cfg->bond_fake_iface && !list_is_short(&port->ifaces);
1081 add_del_bridges(const struct ovsrec_open_vswitch *cfg)
1083 struct bridge *br, *next;
1084 struct shash new_br;
1087 /* Collect new bridges' names and types. */
1088 shash_init(&new_br);
1089 for (i = 0; i < cfg->n_bridges; i++) {
1090 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1091 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
1093 if (strchr(br_cfg->name, '/')) {
1094 /* Prevent remote ovsdb-server users from accessing arbitrary
1095 * directories, e.g. consider a bridge named "../../../etc/". */
1096 VLOG_WARN_RL(&rl, "ignoring bridge with invalid name \"%s\"",
1098 } else if (!shash_add_once(&new_br, br_cfg->name, br_cfg)) {
1099 VLOG_WARN_RL(&rl, "bridge %s specified twice", br_cfg->name);
1103 /* Get rid of deleted bridges or those whose types have changed.
1104 * Update 'cfg' of bridges that still exist. */
1105 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
1106 br->cfg = shash_find_data(&new_br, br->name);
1107 if (!br->cfg || strcmp(br->type, ofproto_normalize_type(
1108 br->cfg->datapath_type))) {
1113 /* Add new bridges. */
1114 for (i = 0; i < cfg->n_bridges; i++) {
1115 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
1116 struct bridge *br = bridge_lookup(br_cfg->name);
1118 bridge_create(br_cfg);
1122 shash_destroy(&new_br);
1126 iface_set_ofp_port(struct iface *iface, int ofp_port)
1128 struct bridge *br = iface->port->bridge;
1130 assert(iface->ofp_port < 0 && ofp_port >= 0);
1131 iface->ofp_port = ofp_port;
1132 hmap_insert(&br->ifaces, &iface->ofp_port_node, hash_int(ofp_port, 0));
1133 iface_set_ofport(iface->cfg, ofp_port);
1136 /* Configures 'netdev' based on the "options" column in 'iface_cfg'.
1137 * Returns 0 if successful, otherwise a positive errno value. */
1139 iface_set_netdev_config(const struct ovsrec_interface *iface_cfg,
1140 struct netdev *netdev)
1146 shash_from_ovs_idl_map(iface_cfg->key_options,
1147 iface_cfg->value_options,
1148 iface_cfg->n_options, &args);
1149 error = netdev_set_config(netdev, &args);
1150 shash_destroy(&args);
1153 VLOG_WARN("could not configure network device %s (%s)",
1154 iface_cfg->name, strerror(error));
1159 /* This function determines whether 'ofproto_port', which is attached to
1160 * br->ofproto's datapath, is one that we want in 'br'.
1162 * If it is, it returns true, after creating an iface (if necessary),
1163 * configuring the iface's netdev according to the iface's options, and setting
1164 * iface's ofp_port member to 'ofproto_port->ofp_port'.
1166 * If, on the other hand, 'port' should be removed, it returns false. The
1167 * caller should later detach the port from br->ofproto. */
1169 bridge_refresh_one_ofp_port(struct bridge *br,
1170 const struct ofproto_port *ofproto_port)
1172 const char *name = ofproto_port->name;
1173 const char *type = ofproto_port->type;
1174 uint16_t ofp_port = ofproto_port->ofp_port;
1176 struct iface *iface = iface_lookup(br, name);
1178 /* Check that the name-to-number mapping is one-to-one. */
1179 if (iface->ofp_port >= 0) {
1180 VLOG_WARN("bridge %s: interface %s reported twice",
1183 } else if (iface_from_ofp_port(br, ofp_port)) {
1184 VLOG_WARN("bridge %s: interface %"PRIu16" reported twice",
1185 br->name, ofp_port);
1189 /* There's a configured interface named 'name'. */
1190 if (strcmp(type, iface->type)
1191 || iface_set_netdev_config(iface->cfg, iface->netdev)) {
1192 /* It's the wrong type, or it's the right type but can't be
1193 * configured as the user requested, so we must destroy it. */
1196 /* It's the right type and configured correctly. keep it. */
1197 iface_set_ofp_port(iface, ofp_port);
1200 } else if (bridge_has_bond_fake_iface(br, name)
1201 && !strcmp(type, "internal")) {
1202 /* It's a bond fake iface. Keep it. */
1205 /* There's no configured interface named 'name', but there might be an
1206 * interface of that name queued to be created.
1208 * If there is, and it has the correct type, then try to configure it
1209 * and add it. If that's successful, we'll keep it. Otherwise, we'll
1210 * delete it and later try to re-add it. */
1211 struct if_cfg *if_cfg = if_cfg_lookup(br, name);
1213 && !strcmp(type, iface_get_type(if_cfg->cfg, br->cfg))
1214 && iface_create(br, if_cfg, ofp_port));
1218 /* Update bridges "if_cfg"s, "struct port"s, and "struct iface"s to be
1219 * consistent with the ofp_ports in "br->ofproto". */
1221 bridge_refresh_ofp_port(struct bridge *br)
1223 struct ofproto_port_dump dump;
1224 struct ofproto_port ofproto_port;
1225 struct port *port, *port_next;
1227 /* Clear each "struct iface"s ofp_port so we can get its correct value. */
1228 hmap_clear(&br->ifaces);
1229 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1230 struct iface *iface;
1232 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1233 iface->ofp_port = -1;
1237 /* Obtain the correct "ofp_port"s from ofproto. Find any if_cfg's which
1238 * already exist in the datapath and promote them to full fledged "struct
1239 * iface"s. Mark ports in the datapath which don't belong as garbage. */
1240 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
1241 if (!bridge_refresh_one_ofp_port(br, &ofproto_port)) {
1242 struct ofpp_garbage *garbage = xmalloc(sizeof *garbage);
1243 garbage->ofp_port = ofproto_port.ofp_port;
1244 list_push_front(&br->ofpp_garbage, &garbage->list_node);
1248 /* Some ifaces may not have "ofp_port"s in ofproto and therefore don't
1249 * deserve to have "struct iface"s. Demote these to "if_cfg"s so that
1250 * later they can be added to ofproto. */
1251 HMAP_FOR_EACH_SAFE (port, port_next, hmap_node, &br->ports) {
1252 struct iface *iface, *iface_next;
1254 LIST_FOR_EACH_SAFE (iface, iface_next, port_elem, &port->ifaces) {
1255 if (iface->ofp_port < 0) {
1256 bridge_queue_if_cfg(br, iface->cfg, port->cfg);
1257 iface_destroy(iface);
1261 if (list_is_empty(&port->ifaces)) {
1267 /* Opens a network device for 'iface_cfg' and configures it. If '*ofp_portp'
1268 * is negative, adds the network device to br->ofproto and stores the OpenFlow
1269 * port number in '*ofp_portp'; otherwise leaves br->ofproto and '*ofp_portp'
1272 * If successful, returns 0 and stores the network device in '*netdevp'. On
1273 * failure, returns a positive errno value and stores NULL in '*netdevp'. */
1275 iface_do_create(const struct bridge *br,
1276 const struct ovsrec_interface *iface_cfg,
1277 const struct ovsrec_port *port_cfg,
1278 int *ofp_portp, struct netdev **netdevp)
1280 struct netdev *netdev;
1283 error = netdev_open(iface_cfg->name,
1284 iface_get_type(iface_cfg, br->cfg), &netdev);
1286 VLOG_WARN("could not open network device %s (%s)",
1287 iface_cfg->name, strerror(error));
1291 error = iface_set_netdev_config(iface_cfg, netdev);
1296 if (*ofp_portp < 0) {
1299 error = ofproto_port_add(br->ofproto, netdev, &ofp_port);
1303 *ofp_portp = ofp_port;
1305 VLOG_INFO("bridge %s: added interface %s on port %d",
1306 br->name, iface_cfg->name, *ofp_portp);
1308 VLOG_DBG("bridge %s: interface %s is on port %d",
1309 br->name, iface_cfg->name, *ofp_portp);
1312 if (port_cfg->vlan_mode && !strcmp(port_cfg->vlan_mode, "splinter")) {
1313 netdev_turn_flags_on(netdev, NETDEV_UP, true);
1321 netdev_close(netdev);
1325 /* Creates a new iface on 'br' based on 'if_cfg'. The new iface has OpenFlow
1326 * port number 'ofp_port'. If ofp_port is negative, an OpenFlow port is
1327 * automatically allocated for the iface. Takes ownership of and
1328 * deallocates 'if_cfg'.
1330 * Return true if an iface is successfully created, false otherwise. */
1332 iface_create(struct bridge *br, struct if_cfg *if_cfg, int ofp_port)
1334 const struct ovsrec_interface *iface_cfg = if_cfg->cfg;
1335 const struct ovsrec_port *port_cfg = if_cfg->parent;
1337 struct netdev *netdev;
1338 struct iface *iface;
1342 /* Get rid of 'if_cfg' itself. We already copied out the interesting
1344 hmap_remove(&br->if_cfg_todo, &if_cfg->hmap_node);
1347 /* Do the bits that can fail up front. */
1348 assert(!iface_lookup(br, iface_cfg->name));
1349 error = iface_do_create(br, iface_cfg, port_cfg, &ofp_port, &netdev);
1351 iface_clear_db_record(iface_cfg);
1355 /* Get or create the port structure. */
1356 port = port_lookup(br, port_cfg->name);
1358 port = port_create(br, port_cfg);
1361 /* Create the iface structure. */
1362 iface = xzalloc(sizeof *iface);
1363 list_push_back(&port->ifaces, &iface->port_elem);
1364 hmap_insert(&br->iface_by_name, &iface->name_node,
1365 hash_string(iface_cfg->name, 0));
1367 iface->name = xstrdup(iface_cfg->name);
1368 iface->ofp_port = -1;
1369 iface->netdev = netdev;
1370 iface->type = iface_get_type(iface_cfg, br->cfg);
1371 iface->cfg = iface_cfg;
1373 iface_set_ofp_port(iface, ofp_port);
1375 /* Populate initial status in database. */
1376 iface_refresh_stats(iface);
1377 iface_refresh_status(iface);
1379 /* Add bond fake iface if necessary. */
1380 if (port_is_bond_fake_iface(port)) {
1381 struct ofproto_port ofproto_port;
1383 if (ofproto_port_query_by_name(br->ofproto, port->name,
1385 struct netdev *netdev;
1388 error = netdev_open(port->name, "internal", &netdev);
1390 ofproto_port_add(br->ofproto, netdev, NULL);
1391 netdev_close(netdev);
1393 VLOG_WARN("could not open network device %s (%s)",
1394 port->name, strerror(error));
1397 /* Already exists, nothing to do. */
1398 ofproto_port_destroy(&ofproto_port);
1406 get_ovsrec_key_value(char **keys, char **values, size_t n, const char *key)
1410 for (i = 0; i < n; i++) {
1411 if (!strcmp(keys[i], key)) {
1419 bridge_get_other_config(const struct ovsrec_bridge *br_cfg, const char *key)
1421 return get_ovsrec_key_value(br_cfg->key_other_config,
1422 br_cfg->value_other_config,
1423 br_cfg->n_other_config, key);
1426 /* Set Flow eviction threshold */
1428 bridge_configure_flow_eviction_threshold(struct bridge *br)
1430 const char *threshold_str;
1433 threshold_str = bridge_get_other_config(br->cfg, "flow-eviction-threshold");
1434 if (threshold_str) {
1435 threshold = strtoul(threshold_str, NULL, 10);
1437 threshold = OFPROTO_FLOW_EVICTON_THRESHOLD_DEFAULT;
1439 ofproto_set_flow_eviction_threshold(br->ofproto, threshold);
1442 /* Set forward BPDU option. */
1444 bridge_configure_forward_bpdu(struct bridge *br)
1446 const char *forward_bpdu_str;
1447 bool forward_bpdu = false;
1449 forward_bpdu_str = bridge_get_other_config(br->cfg, "forward-bpdu");
1450 if (forward_bpdu_str && !strcmp(forward_bpdu_str, "true")) {
1451 forward_bpdu = true;
1453 ofproto_set_forward_bpdu(br->ofproto, forward_bpdu);
1456 /* Set MAC aging time for 'br'. */
1458 bridge_configure_mac_idle_time(struct bridge *br)
1460 const char *idle_time_str;
1463 idle_time_str = bridge_get_other_config(br->cfg, "mac-aging-time");
1464 idle_time = (idle_time_str && atoi(idle_time_str)
1465 ? atoi(idle_time_str)
1466 : MAC_ENTRY_DEFAULT_IDLE_TIME);
1467 ofproto_set_mac_idle_time(br->ofproto, idle_time);
1471 bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
1472 struct iface **hw_addr_iface)
1474 struct hmapx mirror_output_ports;
1477 bool found_addr = false;
1481 *hw_addr_iface = NULL;
1483 /* Did the user request a particular MAC? */
1484 hwaddr = bridge_get_other_config(br->cfg, "hwaddr");
1485 if (hwaddr && eth_addr_from_string(hwaddr, ea)) {
1486 if (eth_addr_is_multicast(ea)) {
1487 VLOG_ERR("bridge %s: cannot set MAC address to multicast "
1488 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1489 } else if (eth_addr_is_zero(ea)) {
1490 VLOG_ERR("bridge %s: cannot set MAC address to zero", br->name);
1496 /* Mirror output ports don't participate in picking the local hardware
1497 * address. ofproto can't help us find out whether a given port is a
1498 * mirror output because we haven't configured mirrors yet, so we need to
1499 * accumulate them ourselves. */
1500 hmapx_init(&mirror_output_ports);
1501 for (i = 0; i < br->cfg->n_mirrors; i++) {
1502 struct ovsrec_mirror *m = br->cfg->mirrors[i];
1503 if (m->output_port) {
1504 hmapx_add(&mirror_output_ports, m->output_port);
1508 /* Otherwise choose the minimum non-local MAC address among all of the
1510 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1511 uint8_t iface_ea[ETH_ADDR_LEN];
1512 struct iface *candidate;
1513 struct iface *iface;
1515 /* Mirror output ports don't participate. */
1516 if (hmapx_contains(&mirror_output_ports, port->cfg)) {
1520 /* Choose the MAC address to represent the port. */
1522 if (port->cfg->mac && eth_addr_from_string(port->cfg->mac, iface_ea)) {
1523 /* Find the interface with this Ethernet address (if any) so that
1524 * we can provide the correct devname to the caller. */
1525 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1526 uint8_t candidate_ea[ETH_ADDR_LEN];
1527 if (!netdev_get_etheraddr(candidate->netdev, candidate_ea)
1528 && eth_addr_equals(iface_ea, candidate_ea)) {
1533 /* Choose the interface whose MAC address will represent the port.
1534 * The Linux kernel bonding code always chooses the MAC address of
1535 * the first slave added to a bond, and the Fedora networking
1536 * scripts always add slaves to a bond in alphabetical order, so
1537 * for compatibility we choose the interface with the name that is
1538 * first in alphabetical order. */
1539 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1540 if (!iface || strcmp(candidate->name, iface->name) < 0) {
1545 /* The local port doesn't count (since we're trying to choose its
1546 * MAC address anyway). */
1547 if (iface->ofp_port == OFPP_LOCAL) {
1552 error = netdev_get_etheraddr(iface->netdev, iface_ea);
1558 /* Compare against our current choice. */
1559 if (!eth_addr_is_multicast(iface_ea) &&
1560 !eth_addr_is_local(iface_ea) &&
1561 !eth_addr_is_reserved(iface_ea) &&
1562 !eth_addr_is_zero(iface_ea) &&
1563 (!found_addr || eth_addr_compare_3way(iface_ea, ea) < 0))
1565 memcpy(ea, iface_ea, ETH_ADDR_LEN);
1566 *hw_addr_iface = iface;
1571 VLOG_DBG("bridge %s: using bridge Ethernet address "ETH_ADDR_FMT,
1572 br->name, ETH_ADDR_ARGS(ea));
1574 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 10);
1575 memcpy(ea, br->default_ea, ETH_ADDR_LEN);
1576 *hw_addr_iface = NULL;
1577 VLOG_WARN_RL(&rl, "bridge %s: using default bridge Ethernet "
1578 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1581 hmapx_destroy(&mirror_output_ports);
1584 /* Choose and returns the datapath ID for bridge 'br' given that the bridge
1585 * Ethernet address is 'bridge_ea'. If 'bridge_ea' is the Ethernet address of
1586 * an interface on 'br', then that interface must be passed in as
1587 * 'hw_addr_iface'; if 'bridge_ea' was derived some other way, then
1588 * 'hw_addr_iface' must be passed in as a null pointer. */
1590 bridge_pick_datapath_id(struct bridge *br,
1591 const uint8_t bridge_ea[ETH_ADDR_LEN],
1592 struct iface *hw_addr_iface)
1595 * The procedure for choosing a bridge MAC address will, in the most
1596 * ordinary case, also choose a unique MAC that we can use as a datapath
1597 * ID. In some special cases, though, multiple bridges will end up with
1598 * the same MAC address. This is OK for the bridges, but it will confuse
1599 * the OpenFlow controller, because each datapath needs a unique datapath
1602 * Datapath IDs must be unique. It is also very desirable that they be
1603 * stable from one run to the next, so that policy set on a datapath
1606 const char *datapath_id;
1609 datapath_id = bridge_get_other_config(br->cfg, "datapath-id");
1610 if (datapath_id && dpid_from_string(datapath_id, &dpid)) {
1614 if (!hw_addr_iface) {
1616 * A purely internal bridge, that is, one that has no non-virtual
1617 * network devices on it at all, is difficult because it has no
1618 * natural unique identifier at all.
1620 * When the host is a XenServer, we handle this case by hashing the
1621 * host's UUID with the name of the bridge. Names of bridges are
1622 * persistent across XenServer reboots, although they can be reused if
1623 * an internal network is destroyed and then a new one is later
1624 * created, so this is fairly effective.
1626 * When the host is not a XenServer, we punt by using a random MAC
1627 * address on each run.
1629 const char *host_uuid = xenserver_get_host_uuid();
1631 char *combined = xasprintf("%s,%s", host_uuid, br->name);
1632 dpid = dpid_from_hash(combined, strlen(combined));
1638 return eth_addr_to_uint64(bridge_ea);
1642 dpid_from_hash(const void *data, size_t n)
1644 uint8_t hash[SHA1_DIGEST_SIZE];
1646 BUILD_ASSERT_DECL(sizeof hash >= ETH_ADDR_LEN);
1647 sha1_bytes(data, n, hash);
1648 eth_addr_mark_random(hash);
1649 return eth_addr_to_uint64(hash);
1653 iface_refresh_status(struct iface *iface)
1657 enum netdev_flags flags;
1664 if (iface_is_synthetic(iface)) {
1670 if (!netdev_get_status(iface->netdev, &sh)) {
1672 char **keys, **values;
1674 shash_to_ovs_idl_map(&sh, &keys, &values, &n);
1675 ovsrec_interface_set_status(iface->cfg, keys, values, n);
1680 ovsrec_interface_set_status(iface->cfg, NULL, NULL, 0);
1683 shash_destroy_free_data(&sh);
1685 error = netdev_get_flags(iface->netdev, &flags);
1687 ovsrec_interface_set_admin_state(iface->cfg, flags & NETDEV_UP ? "up" : "down");
1690 ovsrec_interface_set_admin_state(iface->cfg, NULL);
1693 error = netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
1695 ovsrec_interface_set_duplex(iface->cfg,
1696 netdev_features_is_full_duplex(current)
1698 /* warning: uint64_t -> int64_t conversion */
1699 bps = netdev_features_to_bps(current);
1700 ovsrec_interface_set_link_speed(iface->cfg, &bps, 1);
1703 ovsrec_interface_set_duplex(iface->cfg, NULL);
1704 ovsrec_interface_set_link_speed(iface->cfg, NULL, 0);
1707 error = netdev_get_mtu(iface->netdev, &mtu);
1710 ovsrec_interface_set_mtu(iface->cfg, &mtu_64, 1);
1713 ovsrec_interface_set_mtu(iface->cfg, NULL, 0);
1717 /* Writes 'iface''s CFM statistics to the database. */
1719 iface_refresh_cfm_stats(struct iface *iface)
1721 const struct ovsrec_interface *cfg = iface->cfg;
1723 const uint64_t *rmps;
1726 if (iface_is_synthetic(iface)) {
1730 fault = ofproto_port_get_cfm_fault(iface->port->bridge->ofproto,
1733 const char *reasons[CFM_FAULT_N_REASONS];
1734 bool fault_bool = fault;
1738 for (i = 0; i < CFM_FAULT_N_REASONS; i++) {
1739 int reason = 1 << i;
1740 if (fault & reason) {
1741 reasons[j++] = cfm_fault_reason_to_str(reason);
1745 ovsrec_interface_set_cfm_fault(cfg, &fault_bool, 1);
1746 ovsrec_interface_set_cfm_fault_status(cfg, (char **) reasons, j);
1748 ovsrec_interface_set_cfm_fault(cfg, NULL, 0);
1749 ovsrec_interface_set_cfm_fault_status(cfg, NULL, 0);
1752 error = ofproto_port_get_cfm_remote_mpids(iface->port->bridge->ofproto,
1753 iface->ofp_port, &rmps, &n_rmps);
1755 ovsrec_interface_set_cfm_remote_mpids(cfg, (const int64_t *)rmps,
1758 ovsrec_interface_set_cfm_remote_mpids(cfg, NULL, 0);
1763 iface_refresh_stats(struct iface *iface)
1765 #define IFACE_STATS \
1766 IFACE_STAT(rx_packets, "rx_packets") \
1767 IFACE_STAT(tx_packets, "tx_packets") \
1768 IFACE_STAT(rx_bytes, "rx_bytes") \
1769 IFACE_STAT(tx_bytes, "tx_bytes") \
1770 IFACE_STAT(rx_dropped, "rx_dropped") \
1771 IFACE_STAT(tx_dropped, "tx_dropped") \
1772 IFACE_STAT(rx_errors, "rx_errors") \
1773 IFACE_STAT(tx_errors, "tx_errors") \
1774 IFACE_STAT(rx_frame_errors, "rx_frame_err") \
1775 IFACE_STAT(rx_over_errors, "rx_over_err") \
1776 IFACE_STAT(rx_crc_errors, "rx_crc_err") \
1777 IFACE_STAT(collisions, "collisions")
1779 #define IFACE_STAT(MEMBER, NAME) NAME,
1780 static char *keys[] = { IFACE_STATS };
1782 int64_t values[ARRAY_SIZE(keys)];
1785 struct netdev_stats stats;
1787 if (iface_is_synthetic(iface)) {
1791 /* Intentionally ignore return value, since errors will set 'stats' to
1792 * all-1s, and we will deal with that correctly below. */
1793 netdev_get_stats(iface->netdev, &stats);
1795 /* Copy statistics into values[] array. */
1797 #define IFACE_STAT(MEMBER, NAME) values[i++] = stats.MEMBER;
1800 assert(i == ARRAY_SIZE(keys));
1802 ovsrec_interface_set_statistics(iface->cfg, keys, values, ARRAY_SIZE(keys));
1807 br_refresh_stp_status(struct bridge *br)
1809 struct ofproto *ofproto = br->ofproto;
1810 struct ofproto_stp_status status;
1811 char *keys[3], *values[3];
1814 if (ofproto_get_stp_status(ofproto, &status)) {
1818 if (!status.enabled) {
1819 ovsrec_bridge_set_status(br->cfg, NULL, NULL, 0);
1823 keys[0] = "stp_bridge_id",
1824 values[0] = xasprintf(STP_ID_FMT, STP_ID_ARGS(status.bridge_id));
1825 keys[1] = "stp_designated_root",
1826 values[1] = xasprintf(STP_ID_FMT, STP_ID_ARGS(status.designated_root));
1827 keys[2] = "stp_root_path_cost",
1828 values[2] = xasprintf("%d", status.root_path_cost);
1830 ovsrec_bridge_set_status(br->cfg, keys, values, ARRAY_SIZE(values));
1832 for (i = 0; i < ARRAY_SIZE(values); i++) {
1838 port_refresh_stp_status(struct port *port)
1840 struct ofproto *ofproto = port->bridge->ofproto;
1841 struct iface *iface;
1842 struct ofproto_port_stp_status status;
1844 char *str_values[4];
1845 int64_t int_values[3];
1848 if (port_is_synthetic(port)) {
1852 /* STP doesn't currently support bonds. */
1853 if (!list_is_singleton(&port->ifaces)) {
1854 ovsrec_port_set_status(port->cfg, NULL, NULL, 0);
1858 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
1860 if (ofproto_port_get_stp_status(ofproto, iface->ofp_port, &status)) {
1864 if (!status.enabled) {
1865 ovsrec_port_set_status(port->cfg, NULL, NULL, 0);
1866 ovsrec_port_set_statistics(port->cfg, NULL, NULL, 0);
1870 /* Set Status column. */
1871 keys[0] = "stp_port_id";
1872 str_values[0] = xasprintf(STP_PORT_ID_FMT, status.port_id);
1873 keys[1] = "stp_state";
1874 str_values[1] = xstrdup(stp_state_name(status.state));
1875 keys[2] = "stp_sec_in_state";
1876 str_values[2] = xasprintf("%u", status.sec_in_state);
1877 keys[3] = "stp_role";
1878 str_values[3] = xstrdup(stp_role_name(status.role));
1880 ovsrec_port_set_status(port->cfg, keys, str_values,
1881 ARRAY_SIZE(str_values));
1883 for (i = 0; i < ARRAY_SIZE(str_values); i++) {
1884 free(str_values[i]);
1887 /* Set Statistics column. */
1888 keys[0] = "stp_tx_count";
1889 int_values[0] = status.tx_count;
1890 keys[1] = "stp_rx_count";
1891 int_values[1] = status.rx_count;
1892 keys[2] = "stp_error_count";
1893 int_values[2] = status.error_count;
1895 ovsrec_port_set_statistics(port->cfg, keys, int_values,
1896 ARRAY_SIZE(int_values));
1900 enable_system_stats(const struct ovsrec_open_vswitch *cfg)
1904 /* Use other-config:enable-system-stats by preference. */
1905 enable = get_ovsrec_key_value(cfg->key_other_config,
1906 cfg->value_other_config,
1907 cfg->n_other_config,
1908 "enable-statistics");
1910 return !strcmp(enable, "true");
1913 /* Disable by default. */
1918 refresh_system_stats(const struct ovsrec_open_vswitch *cfg)
1920 struct ovsdb_datum datum;
1924 if (enable_system_stats(cfg)) {
1925 get_system_stats(&stats);
1928 ovsdb_datum_from_shash(&datum, &stats);
1929 ovsdb_idl_txn_write(&cfg->header_, &ovsrec_open_vswitch_col_statistics,
1933 static inline const char *
1934 nx_role_to_str(enum nx_role role)
1939 case NX_ROLE_MASTER:
1944 return "*** INVALID ROLE ***";
1949 refresh_controller_status(void)
1953 const struct ovsrec_controller *cfg;
1957 /* Accumulate status for controllers on all bridges. */
1958 HMAP_FOR_EACH (br, node, &all_bridges) {
1959 ofproto_get_ofproto_controller_info(br->ofproto, &info);
1962 /* Update each controller in the database with current status. */
1963 OVSREC_CONTROLLER_FOR_EACH(cfg, idl) {
1964 struct ofproto_controller_info *cinfo =
1965 shash_find_data(&info, cfg->target);
1968 ovsrec_controller_set_is_connected(cfg, cinfo->is_connected);
1969 ovsrec_controller_set_role(cfg, nx_role_to_str(cinfo->role));
1970 ovsrec_controller_set_status(cfg, (char **) cinfo->pairs.keys,
1971 (char **) cinfo->pairs.values,
1974 ovsrec_controller_set_is_connected(cfg, false);
1975 ovsrec_controller_set_role(cfg, NULL);
1976 ovsrec_controller_set_status(cfg, NULL, NULL, 0);
1980 ofproto_free_ofproto_controller_info(&info);
1984 refresh_cfm_stats(void)
1986 static struct ovsdb_idl_txn *txn = NULL;
1991 txn = ovsdb_idl_txn_create(idl);
1993 HMAP_FOR_EACH (br, node, &all_bridges) {
1994 struct iface *iface;
1996 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
1997 iface_refresh_cfm_stats(iface);
2002 if (ovsdb_idl_txn_commit(txn) != TXN_INCOMPLETE) {
2003 ovsdb_idl_txn_destroy(txn);
2008 /* Performs periodic activity required by bridges that needs to be done with
2009 * the least possible latency.
2011 * It makes sense to call this function a couple of times per poll loop, to
2012 * provide a significant performance boost on some benchmarks with ofprotos
2013 * that use the ofproto-dpif implementation. */
2015 bridge_run_fast(void)
2019 HMAP_FOR_EACH (br, node, &all_bridges) {
2020 ofproto_run_fast(br->ofproto);
2027 static const struct ovsrec_open_vswitch null_cfg;
2028 const struct ovsrec_open_vswitch *cfg;
2029 struct ovsdb_idl_txn *reconf_txn = NULL;
2031 bool vlan_splinters_changed;
2032 bool database_changed;
2035 /* (Re)configure if necessary. */
2036 if (!reconfiguring) {
2037 database_changed = ovsdb_idl_run(idl);
2038 if (ovsdb_idl_is_lock_contended(idl)) {
2039 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
2040 struct bridge *br, *next_br;
2042 VLOG_ERR_RL(&rl, "another ovs-vswitchd process is running, "
2043 "disabling this process until it goes away");
2045 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
2049 } else if (!ovsdb_idl_has_lock(idl)) {
2053 cfg = ovsrec_open_vswitch_first(idl);
2055 /* Let each bridge do the work that it needs to do. */
2056 HMAP_FOR_EACH (br, node, &all_bridges) {
2057 ofproto_run(br->ofproto);
2060 /* Re-configure SSL. We do this on every trip through the main loop,
2061 * instead of just when the database changes, because the contents of the
2062 * key and certificate files can change without the database changing.
2064 * We do this before bridge_reconfigure() because that function might
2065 * initiate SSL connections and thus requires SSL to be configured. */
2066 if (cfg && cfg->ssl) {
2067 const struct ovsrec_ssl *ssl = cfg->ssl;
2069 stream_ssl_set_key_and_cert(ssl->private_key, ssl->certificate);
2070 stream_ssl_set_ca_cert_file(ssl->ca_cert, ssl->bootstrap_ca_cert);
2073 if (!reconfiguring) {
2074 /* If VLAN splinters are in use, then we need to reconfigure if VLAN
2075 * usage has changed. */
2076 vlan_splinters_changed = false;
2077 if (vlan_splinters_enabled_anywhere) {
2078 HMAP_FOR_EACH (br, node, &all_bridges) {
2079 if (ofproto_has_vlan_usage_changed(br->ofproto)) {
2080 vlan_splinters_changed = true;
2086 if (database_changed || vlan_splinters_changed) {
2088 reconf_txn = ovsdb_idl_txn_create(idl);
2089 bridge_reconfigure(cfg);
2091 /* We still need to reconfigure to avoid dangling pointers to
2092 * now-destroyed ovsrec structures inside bridge data. */
2093 bridge_reconfigure(&null_cfg);
2098 if (reconfiguring) {
2101 reconf_txn = ovsdb_idl_txn_create(idl);
2103 if (bridge_reconfigure_continue(cfg)) {
2104 ovsrec_open_vswitch_set_cur_cfg(cfg, cfg->next_cfg);
2107 bridge_reconfigure_continue(&null_cfg);
2112 ovsdb_idl_txn_commit(reconf_txn);
2113 ovsdb_idl_txn_destroy(reconf_txn);
2117 /* Refresh system and interface stats if necessary. */
2118 if (time_msec() >= stats_timer) {
2120 struct ovsdb_idl_txn *txn;
2122 txn = ovsdb_idl_txn_create(idl);
2123 HMAP_FOR_EACH (br, node, &all_bridges) {
2127 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
2128 struct iface *iface;
2130 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
2131 iface_refresh_stats(iface);
2132 iface_refresh_status(iface);
2136 HMAP_FOR_EACH (m, hmap_node, &br->mirrors) {
2137 mirror_refresh_stats(m);
2141 refresh_system_stats(cfg);
2142 refresh_controller_status();
2143 ovsdb_idl_txn_commit(txn);
2144 ovsdb_idl_txn_destroy(txn); /* XXX */
2147 stats_timer = time_msec() + STATS_INTERVAL;
2150 if (time_msec() >= db_limiter) {
2151 struct ovsdb_idl_txn *txn;
2153 txn = ovsdb_idl_txn_create(idl);
2154 HMAP_FOR_EACH (br, node, &all_bridges) {
2155 struct iface *iface;
2158 br_refresh_stp_status(br);
2160 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
2161 port_refresh_stp_status(port);
2164 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
2165 const char *link_state;
2166 int64_t link_resets;
2169 if (iface_is_synthetic(iface)) {
2173 current = ofproto_port_is_lacp_current(br->ofproto,
2177 ovsrec_interface_set_lacp_current(iface->cfg, &bl, 1);
2179 ovsrec_interface_set_lacp_current(iface->cfg, NULL, 0);
2182 link_state = netdev_get_carrier(iface->netdev) ? "up" : "down";
2183 ovsrec_interface_set_link_state(iface->cfg, link_state);
2185 link_resets = netdev_get_carrier_resets(iface->netdev);
2186 ovsrec_interface_set_link_resets(iface->cfg, &link_resets, 1);
2190 if (ovsdb_idl_txn_commit(txn) != TXN_UNCHANGED) {
2191 db_limiter = time_msec() + DB_LIMIT_INTERVAL;
2193 ovsdb_idl_txn_destroy(txn);
2196 refresh_cfm_stats();
2202 ovsdb_idl_wait(idl);
2204 if (reconfiguring) {
2205 poll_immediate_wake();
2208 if (!hmap_is_empty(&all_bridges)) {
2211 HMAP_FOR_EACH (br, node, &all_bridges) {
2212 ofproto_wait(br->ofproto);
2214 poll_timer_wait_until(stats_timer);
2216 if (db_limiter > time_msec()) {
2217 poll_timer_wait_until(db_limiter);
2222 /* QoS unixctl user interface functions. */
2224 struct qos_unixctl_show_cbdata {
2226 struct iface *iface;
2230 qos_unixctl_show_cb(unsigned int queue_id,
2231 const struct shash *details,
2234 struct qos_unixctl_show_cbdata *data = aux;
2235 struct ds *ds = data->ds;
2236 struct iface *iface = data->iface;
2237 struct netdev_queue_stats stats;
2238 struct shash_node *node;
2241 ds_put_cstr(ds, "\n");
2243 ds_put_format(ds, "Queue %u:\n", queue_id);
2245 ds_put_cstr(ds, "Default:\n");
2248 SHASH_FOR_EACH (node, details) {
2249 ds_put_format(ds, "\t%s: %s\n", node->name, (char *)node->data);
2252 error = netdev_get_queue_stats(iface->netdev, queue_id, &stats);
2254 if (stats.tx_packets != UINT64_MAX) {
2255 ds_put_format(ds, "\ttx_packets: %"PRIu64"\n", stats.tx_packets);
2258 if (stats.tx_bytes != UINT64_MAX) {
2259 ds_put_format(ds, "\ttx_bytes: %"PRIu64"\n", stats.tx_bytes);
2262 if (stats.tx_errors != UINT64_MAX) {
2263 ds_put_format(ds, "\ttx_errors: %"PRIu64"\n", stats.tx_errors);
2266 ds_put_format(ds, "\tFailed to get statistics for queue %u: %s",
2267 queue_id, strerror(error));
2272 qos_unixctl_show(struct unixctl_conn *conn, int argc OVS_UNUSED,
2273 const char *argv[], void *aux OVS_UNUSED)
2275 struct ds ds = DS_EMPTY_INITIALIZER;
2276 struct shash sh = SHASH_INITIALIZER(&sh);
2277 struct iface *iface;
2279 struct shash_node *node;
2280 struct qos_unixctl_show_cbdata data;
2283 iface = iface_find(argv[1]);
2285 unixctl_command_reply_error(conn, "no such interface");
2289 netdev_get_qos(iface->netdev, &type, &sh);
2291 if (*type != '\0') {
2292 ds_put_format(&ds, "QoS: %s %s\n", iface->name, type);
2294 SHASH_FOR_EACH (node, &sh) {
2295 ds_put_format(&ds, "%s: %s\n", node->name, (char *)node->data);
2300 error = netdev_dump_queues(iface->netdev, qos_unixctl_show_cb, &data);
2303 ds_put_format(&ds, "failed to dump queues: %s", strerror(error));
2305 unixctl_command_reply(conn, ds_cstr(&ds));
2307 ds_put_format(&ds, "QoS not configured on %s\n", iface->name);
2308 unixctl_command_reply_error(conn, ds_cstr(&ds));
2311 shash_destroy_free_data(&sh);
2315 /* Bridge reconfiguration functions. */
2317 bridge_create(const struct ovsrec_bridge *br_cfg)
2321 assert(!bridge_lookup(br_cfg->name));
2322 br = xzalloc(sizeof *br);
2324 br->name = xstrdup(br_cfg->name);
2325 br->type = xstrdup(ofproto_normalize_type(br_cfg->datapath_type));
2328 /* Derive the default Ethernet address from the bridge's UUID. This should
2329 * be unique and it will be stable between ovs-vswitchd runs. */
2330 memcpy(br->default_ea, &br_cfg->header_.uuid, ETH_ADDR_LEN);
2331 eth_addr_mark_random(br->default_ea);
2333 hmap_init(&br->ports);
2334 hmap_init(&br->ifaces);
2335 hmap_init(&br->iface_by_name);
2336 hmap_init(&br->mirrors);
2338 hmap_init(&br->if_cfg_todo);
2339 list_init(&br->ofpp_garbage);
2341 hmap_insert(&all_bridges, &br->node, hash_string(br->name, 0));
2345 bridge_destroy(struct bridge *br)
2348 struct mirror *mirror, *next_mirror;
2349 struct port *port, *next_port;
2350 struct if_cfg *if_cfg, *next_if_cfg;
2351 struct ofpp_garbage *garbage, *next_garbage;
2353 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
2356 HMAP_FOR_EACH_SAFE (mirror, next_mirror, hmap_node, &br->mirrors) {
2357 mirror_destroy(mirror);
2359 HMAP_FOR_EACH_SAFE (if_cfg, next_if_cfg, hmap_node, &br->if_cfg_todo) {
2360 hmap_remove(&br->if_cfg_todo, &if_cfg->hmap_node);
2363 LIST_FOR_EACH_SAFE (garbage, next_garbage, list_node,
2364 &br->ofpp_garbage) {
2365 list_remove(&garbage->list_node);
2369 hmap_remove(&all_bridges, &br->node);
2370 ofproto_destroy(br->ofproto);
2371 hmap_destroy(&br->ifaces);
2372 hmap_destroy(&br->ports);
2373 hmap_destroy(&br->iface_by_name);
2374 hmap_destroy(&br->mirrors);
2375 hmap_destroy(&br->if_cfg_todo);
2382 static struct bridge *
2383 bridge_lookup(const char *name)
2387 HMAP_FOR_EACH_WITH_HASH (br, node, hash_string(name, 0), &all_bridges) {
2388 if (!strcmp(br->name, name)) {
2395 /* Handle requests for a listing of all flows known by the OpenFlow
2396 * stack, including those normally hidden. */
2398 bridge_unixctl_dump_flows(struct unixctl_conn *conn, int argc OVS_UNUSED,
2399 const char *argv[], void *aux OVS_UNUSED)
2404 br = bridge_lookup(argv[1]);
2406 unixctl_command_reply_error(conn, "Unknown bridge");
2411 ofproto_get_all_flows(br->ofproto, &results);
2413 unixctl_command_reply(conn, ds_cstr(&results));
2414 ds_destroy(&results);
2417 /* "bridge/reconnect [BRIDGE]": makes BRIDGE drop all of its controller
2418 * connections and reconnect. If BRIDGE is not specified, then all bridges
2419 * drop their controller connections and reconnect. */
2421 bridge_unixctl_reconnect(struct unixctl_conn *conn, int argc,
2422 const char *argv[], void *aux OVS_UNUSED)
2426 br = bridge_lookup(argv[1]);
2428 unixctl_command_reply_error(conn, "Unknown bridge");
2431 ofproto_reconnect_controllers(br->ofproto);
2433 HMAP_FOR_EACH (br, node, &all_bridges) {
2434 ofproto_reconnect_controllers(br->ofproto);
2437 unixctl_command_reply(conn, NULL);
2441 bridge_get_controllers(const struct bridge *br,
2442 struct ovsrec_controller ***controllersp)
2444 struct ovsrec_controller **controllers;
2445 size_t n_controllers;
2447 controllers = br->cfg->controller;
2448 n_controllers = br->cfg->n_controller;
2450 if (n_controllers == 1 && !strcmp(controllers[0]->target, "none")) {
2456 *controllersp = controllers;
2458 return n_controllers;
2462 bridge_queue_if_cfg(struct bridge *br,
2463 const struct ovsrec_interface *cfg,
2464 const struct ovsrec_port *parent)
2466 struct if_cfg *if_cfg = xmalloc(sizeof *if_cfg);
2469 if_cfg->parent = parent;
2470 hmap_insert(&br->if_cfg_todo, &if_cfg->hmap_node,
2471 hash_string(if_cfg->cfg->name, 0));
2474 /* Deletes "struct port"s and "struct iface"s under 'br' which aren't
2475 * consistent with 'br->cfg'. Updates 'br->if_cfg_queue' with interfaces which
2476 * 'br' needs to complete its configuration. */
2478 bridge_add_del_ports(struct bridge *br,
2479 const unsigned long int *splinter_vlans)
2481 struct shash_node *port_node;
2482 struct port *port, *next;
2483 struct shash new_ports;
2486 assert(hmap_is_empty(&br->if_cfg_todo));
2488 /* Collect new ports. */
2489 shash_init(&new_ports);
2490 for (i = 0; i < br->cfg->n_ports; i++) {
2491 const char *name = br->cfg->ports[i]->name;
2492 if (!shash_add_once(&new_ports, name, br->cfg->ports[i])) {
2493 VLOG_WARN("bridge %s: %s specified twice as bridge port",
2497 if (bridge_get_controllers(br, NULL)
2498 && !shash_find(&new_ports, br->name)) {
2499 VLOG_WARN("bridge %s: no port named %s, synthesizing one",
2500 br->name, br->name);
2502 br->synth_local_port.interfaces = &br->synth_local_ifacep;
2503 br->synth_local_port.n_interfaces = 1;
2504 br->synth_local_port.name = br->name;
2506 br->synth_local_iface.name = br->name;
2507 br->synth_local_iface.type = "internal";
2509 br->synth_local_ifacep = &br->synth_local_iface;
2511 shash_add(&new_ports, br->name, &br->synth_local_port);
2514 if (splinter_vlans) {
2515 add_vlan_splinter_ports(br, splinter_vlans, &new_ports);
2518 /* Get rid of deleted ports.
2519 * Get rid of deleted interfaces on ports that still exist. */
2520 HMAP_FOR_EACH_SAFE (port, next, hmap_node, &br->ports) {
2521 port->cfg = shash_find_data(&new_ports, port->name);
2525 port_del_ifaces(port);
2529 /* Update iface->cfg and iface->type in interfaces that still exist.
2530 * Add new interfaces to creation queue. */
2531 SHASH_FOR_EACH (port_node, &new_ports) {
2532 const struct ovsrec_port *port = port_node->data;
2535 for (i = 0; i < port->n_interfaces; i++) {
2536 const struct ovsrec_interface *cfg = port->interfaces[i];
2537 struct iface *iface = iface_lookup(br, cfg->name);
2541 iface->type = iface_get_type(cfg, br->cfg);
2543 bridge_queue_if_cfg(br, cfg, port);
2548 shash_destroy(&new_ports);
2551 /* Initializes 'oc' appropriately as a management service controller for
2554 * The caller must free oc->target when it is no longer needed. */
2556 bridge_ofproto_controller_for_mgmt(const struct bridge *br,
2557 struct ofproto_controller *oc)
2559 oc->target = xasprintf("punix:%s/%s.mgmt", ovs_rundir(), br->name);
2560 oc->max_backoff = 0;
2561 oc->probe_interval = 60;
2562 oc->band = OFPROTO_OUT_OF_BAND;
2564 oc->burst_limit = 0;
2565 oc->enable_async_msgs = true;
2568 /* Converts ovsrec_controller 'c' into an ofproto_controller in 'oc'. */
2570 bridge_ofproto_controller_from_ovsrec(const struct ovsrec_controller *c,
2571 struct ofproto_controller *oc)
2573 oc->target = c->target;
2574 oc->max_backoff = c->max_backoff ? *c->max_backoff / 1000 : 8;
2575 oc->probe_interval = c->inactivity_probe ? *c->inactivity_probe / 1000 : 5;
2576 oc->band = (!c->connection_mode || !strcmp(c->connection_mode, "in-band")
2577 ? OFPROTO_IN_BAND : OFPROTO_OUT_OF_BAND);
2578 oc->rate_limit = c->controller_rate_limit ? *c->controller_rate_limit : 0;
2579 oc->burst_limit = (c->controller_burst_limit
2580 ? *c->controller_burst_limit : 0);
2581 oc->enable_async_msgs = (!c->enable_async_messages
2582 || *c->enable_async_messages);
2585 /* Configures the IP stack for 'br''s local interface properly according to the
2586 * configuration in 'c'. */
2588 bridge_configure_local_iface_netdev(struct bridge *br,
2589 struct ovsrec_controller *c)
2591 struct netdev *netdev;
2592 struct in_addr mask, gateway;
2594 struct iface *local_iface;
2597 /* If there's no local interface or no IP address, give up. */
2598 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
2599 if (!local_iface || !c->local_ip || !inet_aton(c->local_ip, &ip)) {
2603 /* Bring up the local interface. */
2604 netdev = local_iface->netdev;
2605 netdev_turn_flags_on(netdev, NETDEV_UP, true);
2607 /* Configure the IP address and netmask. */
2608 if (!c->local_netmask
2609 || !inet_aton(c->local_netmask, &mask)
2611 mask.s_addr = guess_netmask(ip.s_addr);
2613 if (!netdev_set_in4(netdev, ip, mask)) {
2614 VLOG_INFO("bridge %s: configured IP address "IP_FMT", netmask "IP_FMT,
2615 br->name, IP_ARGS(&ip.s_addr), IP_ARGS(&mask.s_addr));
2618 /* Configure the default gateway. */
2619 if (c->local_gateway
2620 && inet_aton(c->local_gateway, &gateway)
2621 && gateway.s_addr) {
2622 if (!netdev_add_router(netdev, gateway)) {
2623 VLOG_INFO("bridge %s: configured gateway "IP_FMT,
2624 br->name, IP_ARGS(&gateway.s_addr));
2629 /* Returns true if 'a' and 'b' are the same except that any number of slashes
2630 * in either string are treated as equal to any number of slashes in the other,
2631 * e.g. "x///y" is equal to "x/y". */
2633 equal_pathnames(const char *a, const char *b)
2637 a += strspn(a, "/");
2638 b += strspn(b, "/");
2639 } else if (*a == '\0') {
2650 bridge_configure_remotes(struct bridge *br,
2651 const struct sockaddr_in *managers, size_t n_managers)
2653 const char *disable_ib_str, *queue_id_str;
2654 bool disable_in_band = false;
2657 struct ovsrec_controller **controllers;
2658 size_t n_controllers;
2660 enum ofproto_fail_mode fail_mode;
2662 struct ofproto_controller *ocs;
2666 /* Check if we should disable in-band control on this bridge. */
2667 disable_ib_str = bridge_get_other_config(br->cfg, "disable-in-band");
2668 if (disable_ib_str && !strcmp(disable_ib_str, "true")) {
2669 disable_in_band = true;
2672 /* Set OpenFlow queue ID for in-band control. */
2673 queue_id_str = bridge_get_other_config(br->cfg, "in-band-queue");
2674 queue_id = queue_id_str ? strtol(queue_id_str, NULL, 10) : -1;
2675 ofproto_set_in_band_queue(br->ofproto, queue_id);
2677 if (disable_in_band) {
2678 ofproto_set_extra_in_band_remotes(br->ofproto, NULL, 0);
2680 ofproto_set_extra_in_band_remotes(br->ofproto, managers, n_managers);
2683 n_controllers = bridge_get_controllers(br, &controllers);
2685 ocs = xmalloc((n_controllers + 1) * sizeof *ocs);
2688 bridge_ofproto_controller_for_mgmt(br, &ocs[n_ocs++]);
2689 for (i = 0; i < n_controllers; i++) {
2690 struct ovsrec_controller *c = controllers[i];
2692 if (!strncmp(c->target, "punix:", 6)
2693 || !strncmp(c->target, "unix:", 5)) {
2694 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2697 whitelist = xasprintf("unix:%s/%s.controller",
2698 ovs_rundir(), br->name);
2699 if (!equal_pathnames(c->target, whitelist)) {
2700 /* Prevent remote ovsdb-server users from accessing arbitrary
2701 * Unix domain sockets and overwriting arbitrary local
2703 VLOG_ERR_RL(&rl, "bridge %s: Not adding Unix domain socket "
2704 "controller \"%s\" due to possibility for remote "
2705 "exploit. Instead, specify whitelisted \"%s\" or "
2706 "connect to \"unix:%s/%s.mgmt\" (which is always "
2707 "available without special configuration).",
2708 br->name, c->target, whitelist,
2709 ovs_rundir(), br->name);
2717 bridge_configure_local_iface_netdev(br, c);
2718 bridge_ofproto_controller_from_ovsrec(c, &ocs[n_ocs]);
2719 if (disable_in_band) {
2720 ocs[n_ocs].band = OFPROTO_OUT_OF_BAND;
2725 ofproto_set_controllers(br->ofproto, ocs, n_ocs);
2726 free(ocs[0].target); /* From bridge_ofproto_controller_for_mgmt(). */
2729 /* Set the fail-mode. */
2730 fail_mode = !br->cfg->fail_mode
2731 || !strcmp(br->cfg->fail_mode, "standalone")
2732 ? OFPROTO_FAIL_STANDALONE
2733 : OFPROTO_FAIL_SECURE;
2734 ofproto_set_fail_mode(br->ofproto, fail_mode);
2736 /* Configure OpenFlow controller connection snooping. */
2737 if (!ofproto_has_snoops(br->ofproto)) {
2741 sset_add_and_free(&snoops, xasprintf("punix:%s/%s.snoop",
2742 ovs_rundir(), br->name));
2743 ofproto_set_snoops(br->ofproto, &snoops);
2744 sset_destroy(&snoops);
2749 bridge_configure_tables(struct bridge *br)
2751 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2755 n_tables = ofproto_get_n_tables(br->ofproto);
2757 for (i = 0; i < n_tables; i++) {
2758 struct ofproto_table_settings s;
2761 s.max_flows = UINT_MAX;
2765 if (j < br->cfg->n_flow_tables && i == br->cfg->key_flow_tables[j]) {
2766 struct ovsrec_flow_table *cfg = br->cfg->value_flow_tables[j++];
2769 if (cfg->n_flow_limit && *cfg->flow_limit < UINT_MAX) {
2770 s.max_flows = *cfg->flow_limit;
2772 if (cfg->overflow_policy
2773 && !strcmp(cfg->overflow_policy, "evict")) {
2776 s.groups = xmalloc(cfg->n_groups * sizeof *s.groups);
2777 for (k = 0; k < cfg->n_groups; k++) {
2778 const char *string = cfg->groups[k];
2781 msg = mf_parse_subfield__(&s.groups[k], &string);
2783 VLOG_WARN_RL(&rl, "bridge %s table %d: error parsing "
2784 "'groups' (%s)", br->name, i, msg);
2786 } else if (*string) {
2787 VLOG_WARN_RL(&rl, "bridge %s table %d: 'groups' "
2788 "element '%s' contains trailing garbage",
2789 br->name, i, cfg->groups[k]);
2797 ofproto_configure_table(br->ofproto, i, &s);
2801 for (; j < br->cfg->n_flow_tables; j++) {
2802 VLOG_WARN_RL(&rl, "bridge %s: ignoring configuration for flow table "
2803 "%"PRId64" not supported by this datapath", br->name,
2804 br->cfg->key_flow_tables[j]);
2808 /* Port functions. */
2810 static struct port *
2811 port_create(struct bridge *br, const struct ovsrec_port *cfg)
2815 port = xzalloc(sizeof *port);
2817 port->name = xstrdup(cfg->name);
2819 list_init(&port->ifaces);
2821 hmap_insert(&br->ports, &port->hmap_node, hash_string(port->name, 0));
2826 get_port_other_config(const struct ovsrec_port *port, const char *key,
2827 const char *default_value)
2831 value = get_ovsrec_key_value(port->key_other_config,
2832 port->value_other_config,
2833 port->n_other_config, key);
2834 return value ? value : default_value;
2838 get_interface_other_config(const struct ovsrec_interface *iface,
2839 const char *key, const char *default_value)
2843 value = get_ovsrec_key_value(iface->key_other_config,
2844 iface->value_other_config,
2845 iface->n_other_config, key);
2846 return value ? value : default_value;
2849 /* Deletes interfaces from 'port' that are no longer configured for it. */
2851 port_del_ifaces(struct port *port)
2853 struct iface *iface, *next;
2854 struct sset new_ifaces;
2857 /* Collect list of new interfaces. */
2858 sset_init(&new_ifaces);
2859 for (i = 0; i < port->cfg->n_interfaces; i++) {
2860 const char *name = port->cfg->interfaces[i]->name;
2861 const char *type = port->cfg->interfaces[i]->name;
2862 if (strcmp(type, "null")) {
2863 sset_add(&new_ifaces, name);
2867 /* Get rid of deleted interfaces. */
2868 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2869 if (!sset_contains(&new_ifaces, iface->name)) {
2870 iface_destroy(iface);
2874 sset_destroy(&new_ifaces);
2878 port_destroy(struct port *port)
2881 struct bridge *br = port->bridge;
2882 struct iface *iface, *next;
2885 ofproto_bundle_unregister(br->ofproto, port);
2888 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2889 iface_destroy(iface);
2892 hmap_remove(&br->ports, &port->hmap_node);
2898 static struct port *
2899 port_lookup(const struct bridge *br, const char *name)
2903 HMAP_FOR_EACH_WITH_HASH (port, hmap_node, hash_string(name, 0),
2905 if (!strcmp(port->name, name)) {
2913 enable_lacp(struct port *port, bool *activep)
2915 if (!port->cfg->lacp) {
2916 /* XXX when LACP implementation has been sufficiently tested, enable by
2917 * default and make active on bonded ports. */
2919 } else if (!strcmp(port->cfg->lacp, "off")) {
2921 } else if (!strcmp(port->cfg->lacp, "active")) {
2924 } else if (!strcmp(port->cfg->lacp, "passive")) {
2928 VLOG_WARN("port %s: unknown LACP mode %s",
2929 port->name, port->cfg->lacp);
2934 static struct lacp_settings *
2935 port_configure_lacp(struct port *port, struct lacp_settings *s)
2937 const char *lacp_time, *system_id;
2938 long long int custom_time;
2941 if (!enable_lacp(port, &s->active)) {
2945 s->name = port->name;
2947 system_id = get_port_other_config(port->cfg, "lacp-system-id", NULL);
2949 if (sscanf(system_id, ETH_ADDR_SCAN_FMT,
2950 ETH_ADDR_SCAN_ARGS(s->id)) != ETH_ADDR_SCAN_COUNT) {
2951 VLOG_WARN("port %s: LACP system ID (%s) must be an Ethernet"
2952 " address.", port->name, system_id);
2956 memcpy(s->id, port->bridge->ea, ETH_ADDR_LEN);
2959 if (eth_addr_is_zero(s->id)) {
2960 VLOG_WARN("port %s: Invalid zero LACP system ID.", port->name);
2964 /* Prefer bondable links if unspecified. */
2965 priority = atoi(get_port_other_config(port->cfg, "lacp-system-priority",
2967 s->priority = (priority > 0 && priority <= UINT16_MAX
2969 : UINT16_MAX - !list_is_short(&port->ifaces));
2971 s->heartbeat = !strcmp(get_port_other_config(port->cfg,
2975 lacp_time = get_port_other_config(port->cfg, "lacp-time", "slow");
2976 custom_time = atoi(lacp_time);
2977 if (!strcmp(lacp_time, "fast")) {
2978 s->lacp_time = LACP_TIME_FAST;
2979 } else if (!strcmp(lacp_time, "slow")) {
2980 s->lacp_time = LACP_TIME_SLOW;
2981 } else if (custom_time > 0) {
2982 s->lacp_time = LACP_TIME_CUSTOM;
2983 s->custom_time = custom_time;
2985 s->lacp_time = LACP_TIME_SLOW;
2992 iface_configure_lacp(struct iface *iface, struct lacp_slave_settings *s)
2994 int priority, portid, key;
2996 portid = atoi(get_interface_other_config(iface->cfg, "lacp-port-id", "0"));
2997 priority = atoi(get_interface_other_config(iface->cfg,
2998 "lacp-port-priority", "0"));
2999 key = atoi(get_interface_other_config(iface->cfg, "lacp-aggregation-key",
3002 if (portid <= 0 || portid > UINT16_MAX) {
3003 portid = iface->ofp_port;
3006 if (priority <= 0 || priority > UINT16_MAX) {
3007 priority = UINT16_MAX;
3010 if (key < 0 || key > UINT16_MAX) {
3014 s->name = iface->name;
3016 s->priority = priority;
3021 port_configure_bond(struct port *port, struct bond_settings *s,
3022 uint32_t *bond_stable_ids)
3024 const char *detect_s;
3025 struct iface *iface;
3026 int miimon_interval;
3029 s->name = port->name;
3031 if (port->cfg->bond_mode) {
3032 if (!bond_mode_from_string(&s->balance, port->cfg->bond_mode)) {
3033 VLOG_WARN("port %s: unknown bond_mode %s, defaulting to %s",
3034 port->name, port->cfg->bond_mode,
3035 bond_mode_to_string(s->balance));
3038 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
3040 /* XXX: Post version 1.5.*, the default bond_mode changed from SLB to
3041 * active-backup. At some point we should remove this warning. */
3042 VLOG_WARN_RL(&rl, "port %s: Using the default bond_mode %s. Note that"
3043 " in previous versions, the default bond_mode was"
3044 " balance-slb", port->name,
3045 bond_mode_to_string(s->balance));
3047 if (s->balance == BM_SLB && port->bridge->cfg->n_flood_vlans) {
3048 VLOG_WARN("port %s: SLB bonds are incompatible with flood_vlans, "
3049 "please use another bond type or disable flood_vlans",
3053 miimon_interval = atoi(get_port_other_config(port->cfg,
3054 "bond-miimon-interval", "0"));
3055 if (miimon_interval <= 0) {
3056 miimon_interval = 200;
3059 detect_s = get_port_other_config(port->cfg, "bond-detect-mode", "carrier");
3060 if (!strcmp(detect_s, "carrier")) {
3061 miimon_interval = 0;
3062 } else if (strcmp(detect_s, "miimon")) {
3063 VLOG_WARN("port %s: unsupported bond-detect-mode %s, "
3064 "defaulting to carrier", port->name, detect_s);
3065 miimon_interval = 0;
3068 s->up_delay = MAX(0, port->cfg->bond_updelay);
3069 s->down_delay = MAX(0, port->cfg->bond_downdelay);
3070 s->basis = atoi(get_port_other_config(port->cfg, "bond-hash-basis", "0"));
3071 s->rebalance_interval = atoi(
3072 get_port_other_config(port->cfg, "bond-rebalance-interval", "10000"));
3073 if (s->rebalance_interval && s->rebalance_interval < 1000) {
3074 s->rebalance_interval = 1000;
3077 s->fake_iface = port->cfg->bond_fake_iface;
3080 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
3081 long long stable_id;
3083 stable_id = atoll(get_interface_other_config(iface->cfg,
3084 "bond-stable-id", "0"));
3085 if (stable_id <= 0 || stable_id >= UINT32_MAX) {
3086 stable_id = iface->ofp_port;
3088 bond_stable_ids[i++] = stable_id;
3090 netdev_set_miimon_interval(iface->netdev, miimon_interval);
3094 /* Returns true if 'port' is synthetic, that is, if we constructed it locally
3095 * instead of obtaining it from the database. */
3097 port_is_synthetic(const struct port *port)
3099 return ovsdb_idl_row_is_synthetic(&port->cfg->header_);
3102 /* Interface functions. */
3104 /* Returns the correct network device type for interface 'iface' in bridge
3107 iface_get_type(const struct ovsrec_interface *iface,
3108 const struct ovsrec_bridge *br)
3110 /* The local port always has type "internal". Other ports take their type
3111 * from the database and default to "system" if none is specified. */
3112 return (!strcmp(iface->name, br->name) ? "internal"
3113 : iface->type[0] ? iface->type
3118 iface_destroy(struct iface *iface)
3121 struct port *port = iface->port;
3122 struct bridge *br = port->bridge;
3124 if (br->ofproto && iface->ofp_port >= 0) {
3125 ofproto_port_unregister(br->ofproto, iface->ofp_port);
3128 if (iface->ofp_port >= 0) {
3129 hmap_remove(&br->ifaces, &iface->ofp_port_node);
3132 list_remove(&iface->port_elem);
3133 hmap_remove(&br->iface_by_name, &iface->name_node);
3135 netdev_close(iface->netdev);
3142 static struct iface *
3143 iface_lookup(const struct bridge *br, const char *name)
3145 struct iface *iface;
3147 HMAP_FOR_EACH_WITH_HASH (iface, name_node, hash_string(name, 0),
3148 &br->iface_by_name) {
3149 if (!strcmp(iface->name, name)) {
3157 static struct iface *
3158 iface_find(const char *name)
3160 const struct bridge *br;
3162 HMAP_FOR_EACH (br, node, &all_bridges) {
3163 struct iface *iface = iface_lookup(br, name);
3172 static struct if_cfg *
3173 if_cfg_lookup(const struct bridge *br, const char *name)
3175 struct if_cfg *if_cfg;
3177 HMAP_FOR_EACH_WITH_HASH (if_cfg, hmap_node, hash_string(name, 0),
3179 if (!strcmp(if_cfg->cfg->name, name)) {
3187 static struct iface *
3188 iface_from_ofp_port(const struct bridge *br, uint16_t ofp_port)
3190 struct iface *iface;
3192 HMAP_FOR_EACH_IN_BUCKET (iface, ofp_port_node,
3193 hash_int(ofp_port, 0), &br->ifaces) {
3194 if (iface->ofp_port == ofp_port) {
3201 /* Set Ethernet address of 'iface', if one is specified in the configuration
3204 iface_set_mac(struct iface *iface)
3206 uint8_t ea[ETH_ADDR_LEN];
3208 if (!strcmp(iface->type, "internal")
3209 && iface->cfg->mac && eth_addr_from_string(iface->cfg->mac, ea)) {
3210 if (iface->ofp_port == OFPP_LOCAL) {
3211 VLOG_ERR("interface %s: ignoring mac in Interface record "
3212 "(use Bridge record to set local port's mac)",
3214 } else if (eth_addr_is_multicast(ea)) {
3215 VLOG_ERR("interface %s: cannot set MAC to multicast address",
3218 int error = netdev_set_etheraddr(iface->netdev, ea);
3220 VLOG_ERR("interface %s: setting MAC failed (%s)",
3221 iface->name, strerror(error));
3227 /* Sets the ofport column of 'if_cfg' to 'ofport'. */
3229 iface_set_ofport(const struct ovsrec_interface *if_cfg, int64_t ofport)
3231 if (if_cfg && !ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
3232 ovsrec_interface_set_ofport(if_cfg, &ofport, 1);
3236 /* Clears all of the fields in 'if_cfg' that indicate interface status, and
3237 * sets the "ofport" field to -1.
3239 * This is appropriate when 'if_cfg''s interface cannot be created or is
3240 * otherwise invalid. */
3242 iface_clear_db_record(const struct ovsrec_interface *if_cfg)
3244 if (!ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
3245 iface_set_ofport(if_cfg, -1);
3246 ovsrec_interface_set_status(if_cfg, NULL, NULL, 0);
3247 ovsrec_interface_set_admin_state(if_cfg, NULL);
3248 ovsrec_interface_set_duplex(if_cfg, NULL);
3249 ovsrec_interface_set_link_speed(if_cfg, NULL, 0);
3250 ovsrec_interface_set_link_state(if_cfg, NULL);
3251 ovsrec_interface_set_mtu(if_cfg, NULL, 0);
3252 ovsrec_interface_set_cfm_fault(if_cfg, NULL, 0);
3253 ovsrec_interface_set_cfm_fault_status(if_cfg, NULL, 0);
3254 ovsrec_interface_set_cfm_remote_mpids(if_cfg, NULL, 0);
3255 ovsrec_interface_set_lacp_current(if_cfg, NULL, 0);
3256 ovsrec_interface_set_statistics(if_cfg, NULL, NULL, 0);
3260 /* Adds the 'n' key-value pairs in 'keys' in 'values' to 'shash'.
3262 * The value strings in '*shash' are taken directly from values[], not copied,
3263 * so the caller should not modify or free them. */
3265 shash_from_ovs_idl_map(char **keys, char **values, size_t n,
3266 struct shash *shash)
3271 for (i = 0; i < n; i++) {
3272 shash_add(shash, keys[i], values[i]);
3276 /* Creates 'keys' and 'values' arrays from 'shash'.
3278 * Sets 'keys' and 'values' to heap allocated arrays representing the key-value
3279 * pairs in 'shash'. The caller takes ownership of 'keys' and 'values'. They
3280 * are populated with with strings taken directly from 'shash' and thus have
3281 * the same ownership of the key-value pairs in shash.
3284 shash_to_ovs_idl_map(struct shash *shash,
3285 char ***keys, char ***values, size_t *n)
3289 struct shash_node *sn;
3291 count = shash_count(shash);
3293 k = xmalloc(count * sizeof *k);
3294 v = xmalloc(count * sizeof *v);
3297 SHASH_FOR_EACH(sn, shash) {
3308 struct iface_delete_queues_cbdata {
3309 struct netdev *netdev;
3310 const struct ovsdb_datum *queues;
3314 queue_ids_include(const struct ovsdb_datum *queues, int64_t target)
3316 union ovsdb_atom atom;
3318 atom.integer = target;
3319 return ovsdb_datum_find_key(queues, &atom, OVSDB_TYPE_INTEGER) != UINT_MAX;
3323 iface_delete_queues(unsigned int queue_id,
3324 const struct shash *details OVS_UNUSED, void *cbdata_)
3326 struct iface_delete_queues_cbdata *cbdata = cbdata_;
3328 if (!queue_ids_include(cbdata->queues, queue_id)) {
3329 netdev_delete_queue(cbdata->netdev, queue_id);
3334 iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos)
3336 struct ofpbuf queues_buf;
3338 ofpbuf_init(&queues_buf, 0);
3340 if (!qos || qos->type[0] == '\0' || qos->n_queues < 1) {
3341 netdev_set_qos(iface->netdev, NULL, NULL);
3343 struct iface_delete_queues_cbdata cbdata;
3344 struct shash details;
3348 /* Configure top-level Qos for 'iface'. */
3349 shash_from_ovs_idl_map(qos->key_other_config, qos->value_other_config,
3350 qos->n_other_config, &details);
3351 netdev_set_qos(iface->netdev, qos->type, &details);
3352 shash_destroy(&details);
3354 /* Deconfigure queues that were deleted. */
3355 cbdata.netdev = iface->netdev;
3356 cbdata.queues = ovsrec_qos_get_queues(qos, OVSDB_TYPE_INTEGER,
3358 netdev_dump_queues(iface->netdev, iface_delete_queues, &cbdata);
3360 /* Configure queues for 'iface'. */
3362 for (i = 0; i < qos->n_queues; i++) {
3363 const struct ovsrec_queue *queue = qos->value_queues[i];
3364 unsigned int queue_id = qos->key_queues[i];
3366 if (queue_id == 0) {
3370 if (queue->n_dscp == 1) {
3371 struct ofproto_port_queue *port_queue;
3373 port_queue = ofpbuf_put_uninit(&queues_buf,
3374 sizeof *port_queue);
3375 port_queue->queue = queue_id;
3376 port_queue->dscp = queue->dscp[0];
3379 shash_from_ovs_idl_map(queue->key_other_config,
3380 queue->value_other_config,
3381 queue->n_other_config, &details);
3382 netdev_set_queue(iface->netdev, queue_id, &details);
3383 shash_destroy(&details);
3386 shash_init(&details);
3387 netdev_set_queue(iface->netdev, 0, &details);
3388 shash_destroy(&details);
3392 if (iface->ofp_port >= 0) {
3393 const struct ofproto_port_queue *port_queues = queues_buf.data;
3394 size_t n_queues = queues_buf.size / sizeof *port_queues;
3396 ofproto_port_set_queues(iface->port->bridge->ofproto, iface->ofp_port,
3397 port_queues, n_queues);
3400 netdev_set_policing(iface->netdev,
3401 iface->cfg->ingress_policing_rate,
3402 iface->cfg->ingress_policing_burst);
3404 ofpbuf_uninit(&queues_buf);
3408 iface_configure_cfm(struct iface *iface)
3410 const struct ovsrec_interface *cfg = iface->cfg;
3411 const char *extended_str, *opstate_str;
3412 struct cfm_settings s;
3414 if (!cfg->n_cfm_mpid) {
3415 ofproto_port_clear_cfm(iface->port->bridge->ofproto, iface->ofp_port);
3419 s.mpid = *cfg->cfm_mpid;
3420 s.interval = atoi(get_interface_other_config(iface->cfg, "cfm_interval",
3422 s.ccm_vlan = atoi(get_interface_other_config(iface->cfg, "cfm_ccm_vlan",
3424 s.ccm_pcp = atoi(get_interface_other_config(iface->cfg, "cfm_ccm_pcp",
3426 if (s.interval <= 0) {
3430 extended_str = get_interface_other_config(iface->cfg, "cfm_extended",
3432 s.extended = !strcasecmp("true", extended_str);
3434 opstate_str = get_interface_other_config(iface->cfg, "cfm_opstate", "up");
3435 s.opup = !strcasecmp("up", opstate_str);
3437 ofproto_port_set_cfm(iface->port->bridge->ofproto, iface->ofp_port, &s);
3440 /* Returns true if 'iface' is synthetic, that is, if we constructed it locally
3441 * instead of obtaining it from the database. */
3443 iface_is_synthetic(const struct iface *iface)
3445 return ovsdb_idl_row_is_synthetic(&iface->cfg->header_);
3448 /* Port mirroring. */
3450 static struct mirror *
3451 mirror_find_by_uuid(struct bridge *br, const struct uuid *uuid)
3455 HMAP_FOR_EACH_IN_BUCKET (m, hmap_node, uuid_hash(uuid), &br->mirrors) {
3456 if (uuid_equals(uuid, &m->uuid)) {
3464 bridge_configure_mirrors(struct bridge *br)
3466 const struct ovsdb_datum *mc;
3467 unsigned long *flood_vlans;
3468 struct mirror *m, *next;
3471 /* Get rid of deleted mirrors. */
3472 mc = ovsrec_bridge_get_mirrors(br->cfg, OVSDB_TYPE_UUID);
3473 HMAP_FOR_EACH_SAFE (m, next, hmap_node, &br->mirrors) {
3474 union ovsdb_atom atom;
3476 atom.uuid = m->uuid;
3477 if (ovsdb_datum_find_key(mc, &atom, OVSDB_TYPE_UUID) == UINT_MAX) {
3482 /* Add new mirrors and reconfigure existing ones. */
3483 for (i = 0; i < br->cfg->n_mirrors; i++) {
3484 const struct ovsrec_mirror *cfg = br->cfg->mirrors[i];
3485 struct mirror *m = mirror_find_by_uuid(br, &cfg->header_.uuid);
3487 m = mirror_create(br, cfg);
3490 if (!mirror_configure(m)) {
3495 /* Update flooded vlans (for RSPAN). */
3496 flood_vlans = vlan_bitmap_from_array(br->cfg->flood_vlans,
3497 br->cfg->n_flood_vlans);
3498 ofproto_set_flood_vlans(br->ofproto, flood_vlans);
3499 bitmap_free(flood_vlans);
3502 static struct mirror *
3503 mirror_create(struct bridge *br, const struct ovsrec_mirror *cfg)
3507 m = xzalloc(sizeof *m);
3508 m->uuid = cfg->header_.uuid;
3509 hmap_insert(&br->mirrors, &m->hmap_node, uuid_hash(&m->uuid));
3511 m->name = xstrdup(cfg->name);
3517 mirror_destroy(struct mirror *m)
3520 struct bridge *br = m->bridge;
3523 ofproto_mirror_unregister(br->ofproto, m);
3526 hmap_remove(&br->mirrors, &m->hmap_node);
3533 mirror_collect_ports(struct mirror *m,
3534 struct ovsrec_port **in_ports, int n_in_ports,
3535 void ***out_portsp, size_t *n_out_portsp)
3537 void **out_ports = xmalloc(n_in_ports * sizeof *out_ports);
3538 size_t n_out_ports = 0;
3541 for (i = 0; i < n_in_ports; i++) {
3542 const char *name = in_ports[i]->name;
3543 struct port *port = port_lookup(m->bridge, name);
3545 out_ports[n_out_ports++] = port;
3547 VLOG_WARN("bridge %s: mirror %s cannot match on nonexistent "
3548 "port %s", m->bridge->name, m->name, name);
3551 *out_portsp = out_ports;
3552 *n_out_portsp = n_out_ports;
3556 mirror_configure(struct mirror *m)
3558 const struct ovsrec_mirror *cfg = m->cfg;
3559 struct ofproto_mirror_settings s;
3562 if (strcmp(cfg->name, m->name)) {
3564 m->name = xstrdup(cfg->name);
3568 /* Get output port or VLAN. */
3569 if (cfg->output_port) {
3570 s.out_bundle = port_lookup(m->bridge, cfg->output_port->name);
3571 if (!s.out_bundle) {
3572 VLOG_ERR("bridge %s: mirror %s outputs to port not on bridge",
3573 m->bridge->name, m->name);
3576 s.out_vlan = UINT16_MAX;
3578 if (cfg->output_vlan) {
3579 VLOG_ERR("bridge %s: mirror %s specifies both output port and "
3580 "output vlan; ignoring output vlan",
3581 m->bridge->name, m->name);
3583 } else if (cfg->output_vlan) {
3584 /* The database should prevent invalid VLAN values. */
3585 s.out_bundle = NULL;
3586 s.out_vlan = *cfg->output_vlan;
3588 VLOG_ERR("bridge %s: mirror %s does not specify output; ignoring",
3589 m->bridge->name, m->name);
3593 /* Get port selection. */
3594 if (cfg->select_all) {
3595 size_t n_ports = hmap_count(&m->bridge->ports);
3596 void **ports = xmalloc(n_ports * sizeof *ports);
3601 HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) {
3611 /* Get ports, dropping ports that don't exist.
3612 * The IDL ensures that there are no duplicates. */
3613 mirror_collect_ports(m, cfg->select_src_port, cfg->n_select_src_port,
3614 &s.srcs, &s.n_srcs);
3615 mirror_collect_ports(m, cfg->select_dst_port, cfg->n_select_dst_port,
3616 &s.dsts, &s.n_dsts);
3619 /* Get VLAN selection. */
3620 s.src_vlans = vlan_bitmap_from_array(cfg->select_vlan, cfg->n_select_vlan);
3623 ofproto_mirror_register(m->bridge->ofproto, m, &s);
3626 if (s.srcs != s.dsts) {
3635 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
3637 * This is deprecated. It is only for compatibility with broken device drivers
3638 * in old versions of Linux that do not properly support VLANs when VLAN
3639 * devices are not used. When broken device drivers are no longer in
3640 * widespread use, we will delete these interfaces. */
3642 static void **blocks;
3643 static size_t n_blocks, allocated_blocks;
3645 /* Adds 'block' to a list of blocks that have to be freed with free() when the
3646 * VLAN splinters are reconfigured. */
3648 register_block(void *block)
3650 if (n_blocks >= allocated_blocks) {
3651 blocks = x2nrealloc(blocks, &allocated_blocks, sizeof *blocks);
3653 blocks[n_blocks++] = block;
3656 /* Frees all of the blocks registered with register_block(). */
3658 free_registered_blocks(void)
3662 for (i = 0; i < n_blocks; i++) {
3668 /* Returns true if VLAN splinters are enabled on 'iface_cfg', false
3671 vlan_splinters_is_enabled(const struct ovsrec_interface *iface_cfg)
3675 value = get_interface_other_config(iface_cfg, "enable-vlan-splinters", "");
3676 return !strcmp(value, "true");
3679 /* Figures out the set of VLANs that are in use for the purpose of VLAN
3682 * If VLAN splinters are enabled on at least one interface and any VLANs are in
3683 * use, returns a 4096-bit bitmap with a 1-bit for each in-use VLAN (bits 0 and
3684 * 4095 will not be set). The caller is responsible for freeing the bitmap,
3687 * If VLANs splinters are not enabled on any interface or if no VLANs are in
3688 * use, returns NULL.
3690 * Updates 'vlan_splinters_enabled_anywhere'. */
3691 static unsigned long int *
3692 collect_splinter_vlans(const struct ovsrec_open_vswitch *ovs_cfg)
3694 unsigned long int *splinter_vlans;
3695 struct sset splinter_ifaces;
3696 const char *real_dev_name;
3697 struct shash *real_devs;
3698 struct shash_node *node;
3702 /* Free space allocated for synthesized ports and interfaces, since we're
3703 * in the process of reconstructing all of them. */
3704 free_registered_blocks();
3706 splinter_vlans = bitmap_allocate(4096);
3707 sset_init(&splinter_ifaces);
3708 vlan_splinters_enabled_anywhere = false;
3709 for (i = 0; i < ovs_cfg->n_bridges; i++) {
3710 struct ovsrec_bridge *br_cfg = ovs_cfg->bridges[i];
3713 for (j = 0; j < br_cfg->n_ports; j++) {
3714 struct ovsrec_port *port_cfg = br_cfg->ports[j];
3717 for (k = 0; k < port_cfg->n_interfaces; k++) {
3718 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[k];
3720 if (vlan_splinters_is_enabled(iface_cfg)) {
3721 vlan_splinters_enabled_anywhere = true;
3722 sset_add(&splinter_ifaces, iface_cfg->name);
3723 vlan_bitmap_from_array__(port_cfg->trunks,
3729 if (port_cfg->tag && *port_cfg->tag > 0 && *port_cfg->tag < 4095) {
3730 bitmap_set1(splinter_vlans, *port_cfg->tag);
3735 if (!vlan_splinters_enabled_anywhere) {
3736 free(splinter_vlans);
3737 sset_destroy(&splinter_ifaces);
3741 HMAP_FOR_EACH (br, node, &all_bridges) {
3743 ofproto_get_vlan_usage(br->ofproto, splinter_vlans);
3747 /* Don't allow VLANs 0 or 4095 to be splintered. VLAN 0 should appear on
3748 * the real device. VLAN 4095 is reserved and Linux doesn't allow a VLAN
3749 * device to be created for it. */
3750 bitmap_set0(splinter_vlans, 0);
3751 bitmap_set0(splinter_vlans, 4095);
3753 /* Delete all VLAN devices that we don't need. */
3755 real_devs = vlandev_get_real_devs();
3756 SHASH_FOR_EACH (node, real_devs) {
3757 const struct vlan_real_dev *real_dev = node->data;
3758 const struct vlan_dev *vlan_dev;
3759 bool real_dev_has_splinters;
3761 real_dev_has_splinters = sset_contains(&splinter_ifaces,
3763 HMAP_FOR_EACH (vlan_dev, hmap_node, &real_dev->vlan_devs) {
3764 if (!real_dev_has_splinters
3765 || !bitmap_is_set(splinter_vlans, vlan_dev->vid)) {
3766 struct netdev *netdev;
3768 if (!netdev_open(vlan_dev->name, "system", &netdev)) {
3769 if (!netdev_get_in4(netdev, NULL, NULL) ||
3770 !netdev_get_in6(netdev, NULL)) {
3771 vlandev_del(vlan_dev->name);
3773 /* It has an IP address configured, so we don't own
3774 * it. Don't delete it. */
3776 netdev_close(netdev);
3783 /* Add all VLAN devices that we need. */
3784 SSET_FOR_EACH (real_dev_name, &splinter_ifaces) {
3787 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
3788 if (!vlandev_get_name(real_dev_name, vid)) {
3789 vlandev_add(real_dev_name, vid);
3796 sset_destroy(&splinter_ifaces);
3798 if (bitmap_scan(splinter_vlans, 0, 4096) >= 4096) {
3799 free(splinter_vlans);
3802 return splinter_vlans;
3805 /* Pushes the configure of VLAN splinter port 'port' (e.g. eth0.9) down to
3808 configure_splinter_port(struct port *port)
3810 struct ofproto *ofproto = port->bridge->ofproto;
3811 uint16_t realdev_ofp_port;
3812 const char *realdev_name;
3813 struct iface *vlandev, *realdev;
3815 ofproto_bundle_unregister(port->bridge->ofproto, port);
3817 vlandev = CONTAINER_OF(list_front(&port->ifaces), struct iface,
3820 realdev_name = get_port_other_config(port->cfg, "realdev", NULL);
3821 realdev = iface_lookup(port->bridge, realdev_name);
3822 realdev_ofp_port = realdev ? realdev->ofp_port : 0;
3824 ofproto_port_set_realdev(ofproto, vlandev->ofp_port, realdev_ofp_port,
3828 static struct ovsrec_port *
3829 synthesize_splinter_port(const char *real_dev_name,
3830 const char *vlan_dev_name, int vid)
3832 struct ovsrec_interface *iface;
3833 struct ovsrec_port *port;
3835 iface = xzalloc(sizeof *iface);
3836 iface->name = xstrdup(vlan_dev_name);
3837 iface->type = "system";
3839 port = xzalloc(sizeof *port);
3840 port->interfaces = xmemdup(&iface, sizeof iface);
3841 port->n_interfaces = 1;
3842 port->name = xstrdup(vlan_dev_name);
3843 port->vlan_mode = "splinter";
3844 port->tag = xmalloc(sizeof *port->tag);
3846 port->key_other_config = xmalloc(sizeof *port->key_other_config);
3847 port->key_other_config[0] = "realdev";
3848 port->value_other_config = xmalloc(sizeof *port->value_other_config);
3849 port->value_other_config[0] = xstrdup(real_dev_name);
3850 port->n_other_config = 1;
3852 register_block(iface);
3853 register_block(iface->name);
3854 register_block(port);
3855 register_block(port->interfaces);
3856 register_block(port->name);
3857 register_block(port->tag);
3858 register_block(port->key_other_config);
3859 register_block(port->value_other_config);
3860 register_block(port->value_other_config[0]);
3865 /* For each interface with 'br' that has VLAN splinters enabled, adds a
3866 * corresponding ovsrec_port to 'ports' for each splinter VLAN marked with a
3867 * 1-bit in the 'splinter_vlans' bitmap. */
3869 add_vlan_splinter_ports(struct bridge *br,
3870 const unsigned long int *splinter_vlans,
3871 struct shash *ports)
3875 /* We iterate through 'br->cfg->ports' instead of 'ports' here because
3876 * we're modifying 'ports'. */
3877 for (i = 0; i < br->cfg->n_ports; i++) {
3878 const char *name = br->cfg->ports[i]->name;
3879 struct ovsrec_port *port_cfg = shash_find_data(ports, name);
3882 for (j = 0; j < port_cfg->n_interfaces; j++) {
3883 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[j];
3885 if (vlan_splinters_is_enabled(iface_cfg)) {
3886 const char *real_dev_name;
3889 real_dev_name = iface_cfg->name;
3890 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
3891 const char *vlan_dev_name;
3893 vlan_dev_name = vlandev_get_name(real_dev_name, vid);
3895 && !shash_find(ports, vlan_dev_name)) {
3896 shash_add(ports, vlan_dev_name,
3897 synthesize_splinter_port(
3898 real_dev_name, vlan_dev_name, vid));
3907 mirror_refresh_stats(struct mirror *m)
3909 struct ofproto *ofproto = m->bridge->ofproto;
3910 uint64_t tx_packets, tx_bytes;
3913 size_t stat_cnt = 0;
3915 if (ofproto_mirror_get_stats(ofproto, m, &tx_packets, &tx_bytes)) {
3916 ovsrec_mirror_set_statistics(m->cfg, NULL, NULL, 0);
3920 if (tx_packets != UINT64_MAX) {
3921 keys[stat_cnt] = "tx_packets";
3922 values[stat_cnt] = tx_packets;
3925 if (tx_bytes != UINT64_MAX) {
3926 keys[stat_cnt] = "tx_bytes";
3927 values[stat_cnt] = tx_bytes;
3931 ovsrec_mirror_set_statistics(m->cfg, keys, values, stat_cnt);