1 /* Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira, Inc.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
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"
45 #include "socket-util.h"
47 #include "stream-ssl.h"
49 #include "system-stats.h"
54 #include "lib/vswitch-idl.h"
55 #include "xenserver.h"
57 #include "sflow_api.h"
58 #include "vlan-bitmap.h"
60 VLOG_DEFINE_THIS_MODULE(bridge);
62 COVERAGE_DEFINE(bridge_reconfigure);
64 /* Configuration of an uninstantiated iface. */
66 struct hmap_node hmap_node; /* Node in bridge's if_cfg_todo. */
67 const struct ovsrec_interface *cfg; /* Interface record. */
68 const struct ovsrec_port *parent; /* Parent port record. */
71 /* OpenFlow port slated for removal from ofproto. */
73 struct list list_node; /* Node in bridge's ofpp_garbage. */
74 uint16_t ofp_port; /* Port to be deleted. */
78 /* These members are always valid. */
79 struct list port_elem; /* Element in struct port's "ifaces" list. */
80 struct hmap_node name_node; /* In struct bridge's "iface_by_name" hmap. */
81 struct port *port; /* Containing port. */
82 char *name; /* Host network device name. */
84 /* These members are valid only after bridge_reconfigure() causes them to
86 struct hmap_node ofp_port_node; /* In struct bridge's "ifaces" hmap. */
87 int ofp_port; /* OpenFlow port number, -1 if unknown. */
88 struct netdev *netdev; /* Network device. */
89 const char *type; /* Usually same as cfg->type. */
90 const struct ovsrec_interface *cfg;
94 struct uuid uuid; /* UUID of this "mirror" record in database. */
95 struct hmap_node hmap_node; /* In struct bridge's "mirrors" hmap. */
96 struct bridge *bridge;
98 const struct ovsrec_mirror *cfg;
102 struct hmap_node hmap_node; /* Element in struct bridge's "ports" hmap. */
103 struct bridge *bridge;
106 const struct ovsrec_port *cfg;
108 /* An ordinary bridge port has 1 interface.
109 * A bridge port for bonding has at least 2 interfaces. */
110 struct list ifaces; /* List of "struct iface"s. */
114 struct hmap_node node; /* In 'all_bridges'. */
115 char *name; /* User-specified arbitrary name. */
116 char *type; /* Datapath type. */
117 uint8_t ea[ETH_ADDR_LEN]; /* Bridge Ethernet Address. */
118 uint8_t default_ea[ETH_ADDR_LEN]; /* Default MAC. */
119 const struct ovsrec_bridge *cfg;
121 /* OpenFlow switch processing. */
122 struct ofproto *ofproto; /* OpenFlow switch. */
125 struct hmap ports; /* "struct port"s indexed by name. */
126 struct hmap ifaces; /* "struct iface"s indexed by ofp_port. */
127 struct hmap iface_by_name; /* "struct iface"s indexed by name. */
129 struct list ofpp_garbage; /* "struct ofpp_garbage" slated for removal. */
130 struct hmap if_cfg_todo; /* "struct if_cfg"s slated for creation.
131 Indexed on 'cfg->name'. */
133 /* Port mirroring. */
134 struct hmap mirrors; /* "struct mirror" indexed by UUID. */
136 /* Synthetic local port if necessary. */
137 struct ovsrec_port synth_local_port;
138 struct ovsrec_interface synth_local_iface;
139 struct ovsrec_interface *synth_local_ifacep;
142 /* All bridges, indexed by name. */
143 static struct hmap all_bridges = HMAP_INITIALIZER(&all_bridges);
145 /* OVSDB IDL used to obtain configuration. */
146 static struct ovsdb_idl *idl;
148 /* Most recently processed IDL sequence number. */
149 static unsigned int idl_seqno;
151 /* Each time this timer expires, the bridge fetches systems and interface
152 * statistics and pushes them into the database. */
153 #define STATS_INTERVAL (5 * 1000) /* In milliseconds. */
154 static long long int stats_timer = LLONG_MIN;
156 /* Stores the time after which rate limited statistics may be written to the
157 * database. Only updated when changes to the database require rate limiting.
159 #define DB_LIMIT_INTERVAL (1 * 1000) /* In milliseconds. */
160 static long long int db_limiter = LLONG_MIN;
162 /* In some datapaths, creating and destroying OpenFlow ports can be extremely
163 * expensive. This can cause bridge_reconfigure() to take a long time during
164 * which no other work can be done. To deal with this problem, we limit port
165 * adds and deletions to a window of OFP_PORT_ACTION_WINDOW milliseconds per
166 * call to bridge_reconfigure(). If there is more work to do after the limit
167 * is reached, 'need_reconfigure', is flagged and it's done on the next loop.
168 * This allows the rest of the code to catch up on important things like
169 * forwarding packets. */
170 #define OFP_PORT_ACTION_WINDOW 10
171 static bool reconfiguring = false;
173 static void add_del_bridges(const struct ovsrec_open_vswitch *);
174 static void bridge_update_ofprotos(void);
175 static void bridge_create(const struct ovsrec_bridge *);
176 static void bridge_destroy(struct bridge *);
177 static struct bridge *bridge_lookup(const char *name);
178 static unixctl_cb_func bridge_unixctl_dump_flows;
179 static unixctl_cb_func bridge_unixctl_reconnect;
180 static size_t bridge_get_controllers(const struct bridge *br,
181 struct ovsrec_controller ***controllersp);
182 static void bridge_add_del_ports(struct bridge *,
183 const unsigned long int *splinter_vlans);
184 static void bridge_refresh_ofp_port(struct bridge *);
185 static void bridge_configure_datapath_id(struct bridge *);
186 static void bridge_configure_flow_eviction_threshold(struct bridge *);
187 static void bridge_configure_netflow(struct bridge *);
188 static void bridge_configure_forward_bpdu(struct bridge *);
189 static void bridge_configure_mac_idle_time(struct bridge *);
190 static void bridge_configure_sflow(struct bridge *, int *sflow_bridge_number);
191 static void bridge_configure_stp(struct bridge *);
192 static void bridge_configure_tables(struct bridge *);
193 static void bridge_configure_remotes(struct bridge *,
194 const struct sockaddr_in *managers,
196 static void bridge_pick_local_hw_addr(struct bridge *,
197 uint8_t ea[ETH_ADDR_LEN],
198 struct iface **hw_addr_iface);
199 static uint64_t bridge_pick_datapath_id(struct bridge *,
200 const uint8_t bridge_ea[ETH_ADDR_LEN],
201 struct iface *hw_addr_iface);
202 static void bridge_queue_if_cfg(struct bridge *,
203 const struct ovsrec_interface *,
204 const struct ovsrec_port *);
205 static uint64_t dpid_from_hash(const void *, size_t nbytes);
206 static bool bridge_has_bond_fake_iface(const struct bridge *,
208 static bool port_is_bond_fake_iface(const struct port *);
210 static unixctl_cb_func qos_unixctl_show;
212 static struct port *port_create(struct bridge *, const struct ovsrec_port *);
213 static void port_del_ifaces(struct port *);
214 static void port_destroy(struct port *);
215 static struct port *port_lookup(const struct bridge *, const char *name);
216 static void port_configure(struct port *);
217 static struct lacp_settings *port_configure_lacp(struct port *,
218 struct lacp_settings *);
219 static void port_configure_bond(struct port *, struct bond_settings *,
220 uint32_t *bond_stable_ids);
221 static bool port_is_synthetic(const struct port *);
223 static void bridge_configure_mirrors(struct bridge *);
224 static struct mirror *mirror_create(struct bridge *,
225 const struct ovsrec_mirror *);
226 static void mirror_destroy(struct mirror *);
227 static bool mirror_configure(struct mirror *);
228 static void mirror_refresh_stats(struct mirror *);
230 static void iface_configure_lacp(struct iface *, struct lacp_slave_settings *);
231 static bool iface_create(struct bridge *, struct if_cfg *, int ofp_port);
232 static const char *iface_get_type(const struct ovsrec_interface *,
233 const struct ovsrec_bridge *);
234 static void iface_destroy(struct iface *);
235 static struct iface *iface_lookup(const struct bridge *, const char *name);
236 static struct iface *iface_find(const char *name);
237 static struct if_cfg *if_cfg_lookup(const struct bridge *, const char *name);
238 static struct iface *iface_from_ofp_port(const struct bridge *,
240 static void iface_set_mac(struct iface *);
241 static void iface_set_ofport(const struct ovsrec_interface *, int64_t ofport);
242 static void iface_clear_db_record(const struct ovsrec_interface *if_cfg);
243 static void iface_configure_qos(struct iface *, const struct ovsrec_qos *);
244 static void iface_configure_cfm(struct iface *);
245 static void iface_refresh_cfm_stats(struct iface *);
246 static void iface_refresh_stats(struct iface *);
247 static void iface_refresh_status(struct iface *);
248 static bool iface_is_synthetic(const struct iface *);
249 static void smap_from_ovs_idl_map(char **keys, char **values, size_t n,
251 static void smap_to_ovs_idl_map(struct smap *,
252 char ***keys, char ***values, size_t *n);
254 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
256 * This is deprecated. It is only for compatibility with broken device drivers
257 * in old versions of Linux that do not properly support VLANs when VLAN
258 * devices are not used. When broken device drivers are no longer in
259 * widespread use, we will delete these interfaces. */
261 /* True if VLAN splinters are enabled on any interface, false otherwise.*/
262 static bool vlan_splinters_enabled_anywhere;
264 static bool vlan_splinters_is_enabled(const struct ovsrec_interface *);
265 static unsigned long int *collect_splinter_vlans(
266 const struct ovsrec_open_vswitch *);
267 static void configure_splinter_port(struct port *);
268 static void add_vlan_splinter_ports(struct bridge *,
269 const unsigned long int *splinter_vlans,
270 struct shash *ports);
272 /* Public functions. */
274 /* Initializes the bridge module, configuring it to obtain its configuration
275 * from an OVSDB server accessed over 'remote', which should be a string in a
276 * form acceptable to ovsdb_idl_create(). */
278 bridge_init(const char *remote)
280 /* Create connection to database. */
281 idl = ovsdb_idl_create(remote, &ovsrec_idl_class, true);
282 idl_seqno = ovsdb_idl_get_seqno(idl);
283 ovsdb_idl_set_lock(idl, "ovs_vswitchd");
285 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_cur_cfg);
286 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_statistics);
287 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_external_ids);
288 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_ovs_version);
289 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_db_version);
290 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_type);
291 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_version);
293 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_datapath_id);
294 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_status);
295 ovsdb_idl_omit(idl, &ovsrec_bridge_col_external_ids);
297 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_status);
298 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_statistics);
299 ovsdb_idl_omit(idl, &ovsrec_port_col_external_ids);
300 ovsdb_idl_omit(idl, &ovsrec_port_col_fake_bridge);
302 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_admin_state);
303 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_duplex);
304 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_speed);
305 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_state);
306 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_resets);
307 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mtu);
308 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ofport);
309 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_statistics);
310 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_status);
311 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault);
312 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault_status);
313 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_remote_mpids);
314 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_health);
315 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_lacp_current);
316 ovsdb_idl_omit(idl, &ovsrec_interface_col_external_ids);
318 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_is_connected);
319 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_role);
320 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_status);
321 ovsdb_idl_omit(idl, &ovsrec_controller_col_external_ids);
323 ovsdb_idl_omit(idl, &ovsrec_qos_col_external_ids);
325 ovsdb_idl_omit(idl, &ovsrec_queue_col_external_ids);
327 ovsdb_idl_omit(idl, &ovsrec_mirror_col_external_ids);
328 ovsdb_idl_omit_alert(idl, &ovsrec_mirror_col_statistics);
330 ovsdb_idl_omit(idl, &ovsrec_netflow_col_external_ids);
332 ovsdb_idl_omit(idl, &ovsrec_sflow_col_external_ids);
334 ovsdb_idl_omit(idl, &ovsrec_manager_col_external_ids);
335 ovsdb_idl_omit(idl, &ovsrec_manager_col_inactivity_probe);
336 ovsdb_idl_omit(idl, &ovsrec_manager_col_is_connected);
337 ovsdb_idl_omit(idl, &ovsrec_manager_col_max_backoff);
338 ovsdb_idl_omit(idl, &ovsrec_manager_col_status);
340 ovsdb_idl_omit(idl, &ovsrec_ssl_col_external_ids);
342 /* Register unixctl commands. */
343 unixctl_command_register("qos/show", "interface", 1, 1,
344 qos_unixctl_show, NULL);
345 unixctl_command_register("bridge/dump-flows", "bridge", 1, 1,
346 bridge_unixctl_dump_flows, NULL);
347 unixctl_command_register("bridge/reconnect", "[bridge]", 0, 1,
348 bridge_unixctl_reconnect, NULL);
358 struct bridge *br, *next_br;
360 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
363 ovsdb_idl_destroy(idl);
366 /* Looks at the list of managers in 'ovs_cfg' and extracts their remote IP
367 * addresses and ports into '*managersp' and '*n_managersp'. The caller is
368 * responsible for freeing '*managersp' (with free()).
370 * You may be asking yourself "why does ovs-vswitchd care?", because
371 * ovsdb-server is responsible for connecting to the managers, and ovs-vswitchd
372 * should not be and in fact is not directly involved in that. But
373 * ovs-vswitchd needs to make sure that ovsdb-server can reach the managers, so
374 * it has to tell in-band control where the managers are to enable that.
375 * (Thus, only managers connected in-band are collected.)
378 collect_in_band_managers(const struct ovsrec_open_vswitch *ovs_cfg,
379 struct sockaddr_in **managersp, size_t *n_managersp)
381 struct sockaddr_in *managers = NULL;
382 size_t n_managers = 0;
386 /* Collect all of the potential targets from the "targets" columns of the
387 * rows pointed to by "manager_options", excluding any that are
390 for (i = 0; i < ovs_cfg->n_manager_options; i++) {
391 struct ovsrec_manager *m = ovs_cfg->manager_options[i];
393 if (m->connection_mode && !strcmp(m->connection_mode, "out-of-band")) {
394 sset_find_and_delete(&targets, m->target);
396 sset_add(&targets, m->target);
400 /* Now extract the targets' IP addresses. */
401 if (!sset_is_empty(&targets)) {
404 managers = xmalloc(sset_count(&targets) * sizeof *managers);
405 SSET_FOR_EACH (target, &targets) {
406 struct sockaddr_in *sin = &managers[n_managers];
408 if (stream_parse_target_with_default_ports(target,
416 sset_destroy(&targets);
418 *managersp = managers;
419 *n_managersp = n_managers;
423 bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
425 unsigned long int *splinter_vlans;
428 COVERAGE_INC(bridge_reconfigure);
430 assert(!reconfiguring);
431 reconfiguring = true;
433 /* Destroy "struct bridge"s, "struct port"s, and "struct iface"s according
434 * to 'ovs_cfg' while update the "if_cfg_queue", with only very minimal
435 * configuration otherwise.
437 * This is mostly an update to bridge data structures. Nothing is pushed
438 * down to ofproto or lower layers. */
439 add_del_bridges(ovs_cfg);
440 splinter_vlans = collect_splinter_vlans(ovs_cfg);
441 HMAP_FOR_EACH (br, node, &all_bridges) {
442 bridge_add_del_ports(br, splinter_vlans);
444 free(splinter_vlans);
446 /* Delete datapaths that are no longer configured, and create ones which
447 * don't exist but should. */
448 bridge_update_ofprotos();
450 /* Make sure each "struct iface" has a correct ofp_port in its ofproto. */
451 HMAP_FOR_EACH (br, node, &all_bridges) {
452 bridge_refresh_ofp_port(br);
455 /* Clear database records for "if_cfg"s which haven't been instantiated. */
456 HMAP_FOR_EACH (br, node, &all_bridges) {
457 struct if_cfg *if_cfg;
459 HMAP_FOR_EACH (if_cfg, hmap_node, &br->if_cfg_todo) {
460 iface_clear_db_record(if_cfg->cfg);
466 bridge_reconfigure_ofp(void)
468 long long int deadline;
472 deadline = time_msec() + OFP_PORT_ACTION_WINDOW;
474 /* The kernel will reject any attempt to add a given port to a datapath if
475 * that port already belongs to a different datapath, so we must do all
476 * port deletions before any port additions. */
477 HMAP_FOR_EACH (br, node, &all_bridges) {
478 struct ofpp_garbage *garbage, *next;
480 LIST_FOR_EACH_SAFE (garbage, next, list_node, &br->ofpp_garbage) {
481 ofproto_port_del(br->ofproto, garbage->ofp_port);
482 list_remove(&garbage->list_node);
486 if (time_msec() >= deadline) {
492 HMAP_FOR_EACH (br, node, &all_bridges) {
493 struct if_cfg *if_cfg, *next;
495 HMAP_FOR_EACH_SAFE (if_cfg, next, hmap_node, &br->if_cfg_todo) {
496 iface_create(br, if_cfg, -1);
498 if (time_msec() >= deadline) {
508 bridge_reconfigure_continue(const struct ovsrec_open_vswitch *ovs_cfg)
510 struct sockaddr_in *managers;
511 int sflow_bridge_number;
516 assert(reconfiguring);
517 done = bridge_reconfigure_ofp();
519 /* Complete the configuration. */
520 sflow_bridge_number = 0;
521 collect_in_band_managers(ovs_cfg, &managers, &n_managers);
522 HMAP_FOR_EACH (br, node, &all_bridges) {
525 /* We need the datapath ID early to allow LACP ports to use it as the
526 * default system ID. */
527 bridge_configure_datapath_id(br);
529 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
532 port_configure(port);
534 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
535 iface_configure_cfm(iface);
536 iface_configure_qos(iface, port->cfg->qos);
537 iface_set_mac(iface);
540 bridge_configure_mirrors(br);
541 bridge_configure_flow_eviction_threshold(br);
542 bridge_configure_forward_bpdu(br);
543 bridge_configure_mac_idle_time(br);
544 bridge_configure_remotes(br, managers, n_managers);
545 bridge_configure_netflow(br);
546 bridge_configure_sflow(br, &sflow_bridge_number);
547 bridge_configure_stp(br);
548 bridge_configure_tables(br);
553 /* ovs-vswitchd has completed initialization, so allow the process that
554 * forked us to exit successfully. */
555 daemonize_complete();
556 reconfiguring = false;
562 /* Delete ofprotos which aren't configured or have the wrong type. Create
563 * ofprotos which don't exist but need to. */
565 bridge_update_ofprotos(void)
567 struct bridge *br, *next;
572 /* Delete ofprotos with no bridge or with the wrong type. */
575 ofproto_enumerate_types(&types);
576 SSET_FOR_EACH (type, &types) {
579 ofproto_enumerate_names(type, &names);
580 SSET_FOR_EACH (name, &names) {
581 br = bridge_lookup(name);
582 if (!br || strcmp(type, br->type)) {
583 ofproto_delete(name, type);
587 sset_destroy(&names);
588 sset_destroy(&types);
590 /* Add ofprotos for bridges which don't have one yet. */
591 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
599 /* Remove ports from any datapath with the same name as 'br'. If we
600 * don't do this, creating 'br''s ofproto will fail because a port with
601 * the same name as its local port already exists. */
602 HMAP_FOR_EACH (br2, node, &all_bridges) {
603 struct ofproto_port ofproto_port;
609 if (!ofproto_port_query_by_name(br2->ofproto, br->name,
611 error = ofproto_port_del(br2->ofproto, ofproto_port.ofp_port);
613 VLOG_ERR("failed to delete port %s: %s", ofproto_port.name,
616 ofproto_port_destroy(&ofproto_port);
620 error = ofproto_create(br->name, br->type, &br->ofproto);
622 VLOG_ERR("failed to create bridge %s: %s", br->name,
630 port_configure(struct port *port)
632 const struct ovsrec_port *cfg = port->cfg;
633 struct bond_settings bond_settings;
634 struct lacp_settings lacp_settings;
635 struct ofproto_bundle_settings s;
638 if (cfg->vlan_mode && !strcmp(cfg->vlan_mode, "splinter")) {
639 configure_splinter_port(port);
648 s.slaves = xmalloc(list_size(&port->ifaces) * sizeof *s.slaves);
649 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
650 s.slaves[s.n_slaves++] = iface->ofp_port;
655 if (cfg->tag && *cfg->tag >= 0 && *cfg->tag <= 4095) {
659 /* Get VLAN trunks. */
662 s.trunks = vlan_bitmap_from_array(cfg->trunks, cfg->n_trunks);
666 if (cfg->vlan_mode) {
667 if (!strcmp(cfg->vlan_mode, "access")) {
668 s.vlan_mode = PORT_VLAN_ACCESS;
669 } else if (!strcmp(cfg->vlan_mode, "trunk")) {
670 s.vlan_mode = PORT_VLAN_TRUNK;
671 } else if (!strcmp(cfg->vlan_mode, "native-tagged")) {
672 s.vlan_mode = PORT_VLAN_NATIVE_TAGGED;
673 } else if (!strcmp(cfg->vlan_mode, "native-untagged")) {
674 s.vlan_mode = PORT_VLAN_NATIVE_UNTAGGED;
676 /* This "can't happen" because ovsdb-server should prevent it. */
677 VLOG_ERR("unknown VLAN mode %s", cfg->vlan_mode);
678 s.vlan_mode = PORT_VLAN_TRUNK;
682 s.vlan_mode = PORT_VLAN_ACCESS;
684 VLOG_ERR("port %s: ignoring trunks in favor of implicit vlan",
688 s.vlan_mode = PORT_VLAN_TRUNK;
691 s.use_priority_tags = !strcmp("true", ovsrec_port_get_other_config_value(
692 cfg, "priority-tags", ""));
694 /* Get LACP settings. */
695 s.lacp = port_configure_lacp(port, &lacp_settings);
699 s.lacp_slaves = xmalloc(s.n_slaves * sizeof *s.lacp_slaves);
700 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
701 iface_configure_lacp(iface, &s.lacp_slaves[i++]);
704 s.lacp_slaves = NULL;
707 /* Get bond settings. */
708 if (s.n_slaves > 1) {
709 s.bond = &bond_settings;
710 s.bond_stable_ids = xmalloc(s.n_slaves * sizeof *s.bond_stable_ids);
711 port_configure_bond(port, &bond_settings, s.bond_stable_ids);
714 s.bond_stable_ids = NULL;
716 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
717 netdev_set_miimon_interval(iface->netdev, 0);
722 ofproto_bundle_register(port->bridge->ofproto, port, &s);
728 free(s.bond_stable_ids);
731 /* Pick local port hardware address and datapath ID for 'br'. */
733 bridge_configure_datapath_id(struct bridge *br)
735 uint8_t ea[ETH_ADDR_LEN];
737 struct iface *local_iface;
738 struct iface *hw_addr_iface;
741 bridge_pick_local_hw_addr(br, ea, &hw_addr_iface);
742 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
744 int error = netdev_set_etheraddr(local_iface->netdev, ea);
746 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
747 VLOG_ERR_RL(&rl, "bridge %s: failed to set bridge "
748 "Ethernet address: %s",
749 br->name, strerror(error));
752 memcpy(br->ea, ea, ETH_ADDR_LEN);
754 dpid = bridge_pick_datapath_id(br, ea, hw_addr_iface);
755 ofproto_set_datapath_id(br->ofproto, dpid);
757 dpid_string = xasprintf("%016"PRIx64, dpid);
758 ovsrec_bridge_set_datapath_id(br->cfg, dpid_string);
762 /* Set NetFlow configuration on 'br'. */
764 bridge_configure_netflow(struct bridge *br)
766 struct ovsrec_netflow *cfg = br->cfg->netflow;
767 struct netflow_options opts;
770 ofproto_set_netflow(br->ofproto, NULL);
774 memset(&opts, 0, sizeof opts);
776 /* Get default NetFlow configuration from datapath.
777 * Apply overrides from 'cfg'. */
778 ofproto_get_netflow_ids(br->ofproto, &opts.engine_type, &opts.engine_id);
779 if (cfg->engine_type) {
780 opts.engine_type = *cfg->engine_type;
782 if (cfg->engine_id) {
783 opts.engine_id = *cfg->engine_id;
786 /* Configure active timeout interval. */
787 opts.active_timeout = cfg->active_timeout;
788 if (!opts.active_timeout) {
789 opts.active_timeout = -1;
790 } else if (opts.active_timeout < 0) {
791 VLOG_WARN("bridge %s: active timeout interval set to negative "
792 "value, using default instead (%d seconds)", br->name,
793 NF_ACTIVE_TIMEOUT_DEFAULT);
794 opts.active_timeout = -1;
797 /* Add engine ID to interface number to disambiguate bridgs? */
798 opts.add_id_to_iface = cfg->add_id_to_interface;
799 if (opts.add_id_to_iface) {
800 if (opts.engine_id > 0x7f) {
801 VLOG_WARN("bridge %s: NetFlow port mangling may conflict with "
802 "another vswitch, choose an engine id less than 128",
805 if (hmap_count(&br->ports) > 508) {
806 VLOG_WARN("bridge %s: NetFlow port mangling will conflict with "
807 "another port when more than 508 ports are used",
813 sset_init(&opts.collectors);
814 sset_add_array(&opts.collectors, cfg->targets, cfg->n_targets);
817 if (ofproto_set_netflow(br->ofproto, &opts)) {
818 VLOG_ERR("bridge %s: problem setting netflow collectors", br->name);
820 sset_destroy(&opts.collectors);
823 /* Set sFlow configuration on 'br'. */
825 bridge_configure_sflow(struct bridge *br, int *sflow_bridge_number)
827 const struct ovsrec_sflow *cfg = br->cfg->sflow;
828 struct ovsrec_controller **controllers;
829 struct ofproto_sflow_options oso;
830 size_t n_controllers;
834 ofproto_set_sflow(br->ofproto, NULL);
838 memset(&oso, 0, sizeof oso);
840 sset_init(&oso.targets);
841 sset_add_array(&oso.targets, cfg->targets, cfg->n_targets);
843 oso.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
845 oso.sampling_rate = *cfg->sampling;
848 oso.polling_interval = SFL_DEFAULT_POLLING_INTERVAL;
850 oso.polling_interval = *cfg->polling;
853 oso.header_len = SFL_DEFAULT_HEADER_SIZE;
855 oso.header_len = *cfg->header;
858 oso.sub_id = (*sflow_bridge_number)++;
859 oso.agent_device = cfg->agent;
861 oso.control_ip = NULL;
862 n_controllers = bridge_get_controllers(br, &controllers);
863 for (i = 0; i < n_controllers; i++) {
864 if (controllers[i]->local_ip) {
865 oso.control_ip = controllers[i]->local_ip;
869 ofproto_set_sflow(br->ofproto, &oso);
871 sset_destroy(&oso.targets);
875 port_configure_stp(const struct ofproto *ofproto, struct port *port,
876 struct ofproto_port_stp_settings *port_s,
877 int *port_num_counter, unsigned long *port_num_bitmap)
879 const char *config_str;
882 config_str = ovsrec_port_get_other_config_value(port->cfg, "stp-enable",
884 if (config_str && !strcmp(config_str, "false")) {
885 port_s->enable = false;
888 port_s->enable = true;
891 /* STP over bonds is not supported. */
892 if (!list_is_singleton(&port->ifaces)) {
893 VLOG_ERR("port %s: cannot enable STP on bonds, disabling",
895 port_s->enable = false;
899 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
901 /* Internal ports shouldn't participate in spanning tree, so
903 if (!strcmp(iface->type, "internal")) {
904 VLOG_DBG("port %s: disable STP on internal ports", port->name);
905 port_s->enable = false;
909 /* STP on mirror output ports is not supported. */
910 if (ofproto_is_mirror_output_bundle(ofproto, port)) {
911 VLOG_DBG("port %s: disable STP on mirror ports", port->name);
912 port_s->enable = false;
916 config_str = ovsrec_port_get_other_config_value(port->cfg, "stp-port-num",
919 unsigned long int port_num = strtoul(config_str, NULL, 0);
920 int port_idx = port_num - 1;
922 if (port_num < 1 || port_num > STP_MAX_PORTS) {
923 VLOG_ERR("port %s: invalid stp-port-num", port->name);
924 port_s->enable = false;
928 if (bitmap_is_set(port_num_bitmap, port_idx)) {
929 VLOG_ERR("port %s: duplicate stp-port-num %lu, disabling",
930 port->name, port_num);
931 port_s->enable = false;
934 bitmap_set1(port_num_bitmap, port_idx);
935 port_s->port_num = port_idx;
937 if (*port_num_counter > STP_MAX_PORTS) {
938 VLOG_ERR("port %s: too many STP ports, disabling", port->name);
939 port_s->enable = false;
943 port_s->port_num = (*port_num_counter)++;
946 config_str = ovsrec_port_get_other_config_value(port->cfg, "stp-path-cost",
949 port_s->path_cost = strtoul(config_str, NULL, 10);
951 enum netdev_features current;
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 = ovsrec_port_get_other_config_value(port->cfg,
968 port_s->priority = strtoul(config_str, NULL, 0);
970 port_s->priority = STP_DEFAULT_PORT_PRIORITY;
974 /* Set spanning tree configuration on 'br'. */
976 bridge_configure_stp(struct bridge *br)
978 if (!br->cfg->stp_enable) {
979 ofproto_set_stp(br->ofproto, NULL);
981 struct ofproto_stp_settings br_s;
982 const char *config_str;
984 int port_num_counter;
985 unsigned long *port_num_bitmap;
987 config_str = ovsrec_bridge_get_other_config_value(br->cfg,
991 uint8_t ea[ETH_ADDR_LEN];
993 if (eth_addr_from_string(config_str, ea)) {
994 br_s.system_id = eth_addr_to_uint64(ea);
996 br_s.system_id = eth_addr_to_uint64(br->ea);
997 VLOG_ERR("bridge %s: invalid stp-system-id, defaulting "
998 "to "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(br->ea));
1001 br_s.system_id = eth_addr_to_uint64(br->ea);
1004 config_str = ovsrec_bridge_get_other_config_value(br->cfg,
1008 br_s.priority = strtoul(config_str, NULL, 0);
1010 br_s.priority = STP_DEFAULT_BRIDGE_PRIORITY;
1013 config_str = ovsrec_bridge_get_other_config_value(br->cfg,
1017 br_s.hello_time = strtoul(config_str, NULL, 10) * 1000;
1019 br_s.hello_time = STP_DEFAULT_HELLO_TIME;
1022 config_str = ovsrec_bridge_get_other_config_value(br->cfg,
1026 br_s.max_age = strtoul(config_str, NULL, 10) * 1000;
1028 br_s.max_age = STP_DEFAULT_MAX_AGE;
1031 config_str = ovsrec_bridge_get_other_config_value(br->cfg,
1032 "stp-forward-delay",
1035 br_s.fwd_delay = strtoul(config_str, NULL, 10) * 1000;
1037 br_s.fwd_delay = STP_DEFAULT_FWD_DELAY;
1040 /* Configure STP on the bridge. */
1041 if (ofproto_set_stp(br->ofproto, &br_s)) {
1042 VLOG_ERR("bridge %s: could not enable STP", br->name);
1046 /* Users must either set the port number with the "stp-port-num"
1047 * configuration on all ports or none. If manual configuration
1048 * is not done, then we allocate them sequentially. */
1049 port_num_counter = 0;
1050 port_num_bitmap = bitmap_allocate(STP_MAX_PORTS);
1051 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1052 struct ofproto_port_stp_settings port_s;
1053 struct iface *iface;
1055 port_configure_stp(br->ofproto, port, &port_s,
1056 &port_num_counter, port_num_bitmap);
1058 /* As bonds are not supported, just apply configuration to
1059 * all interfaces. */
1060 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1061 if (ofproto_port_set_stp(br->ofproto, iface->ofp_port,
1063 VLOG_ERR("port %s: could not enable STP", port->name);
1069 if (bitmap_scan(port_num_bitmap, 0, STP_MAX_PORTS) != STP_MAX_PORTS
1070 && port_num_counter) {
1071 VLOG_ERR("bridge %s: must manually configure all STP port "
1072 "IDs or none, disabling", br->name);
1073 ofproto_set_stp(br->ofproto, NULL);
1075 bitmap_free(port_num_bitmap);
1080 bridge_has_bond_fake_iface(const struct bridge *br, const char *name)
1082 const struct port *port = port_lookup(br, name);
1083 return port && port_is_bond_fake_iface(port);
1087 port_is_bond_fake_iface(const struct port *port)
1089 return port->cfg->bond_fake_iface && !list_is_short(&port->ifaces);
1093 add_del_bridges(const struct ovsrec_open_vswitch *cfg)
1095 struct bridge *br, *next;
1096 struct shash new_br;
1099 /* Collect new bridges' names and types. */
1100 shash_init(&new_br);
1101 for (i = 0; i < cfg->n_bridges; i++) {
1102 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1103 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
1105 if (strchr(br_cfg->name, '/')) {
1106 /* Prevent remote ovsdb-server users from accessing arbitrary
1107 * directories, e.g. consider a bridge named "../../../etc/". */
1108 VLOG_WARN_RL(&rl, "ignoring bridge with invalid name \"%s\"",
1110 } else if (!shash_add_once(&new_br, br_cfg->name, br_cfg)) {
1111 VLOG_WARN_RL(&rl, "bridge %s specified twice", br_cfg->name);
1115 /* Get rid of deleted bridges or those whose types have changed.
1116 * Update 'cfg' of bridges that still exist. */
1117 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
1118 br->cfg = shash_find_data(&new_br, br->name);
1119 if (!br->cfg || strcmp(br->type, ofproto_normalize_type(
1120 br->cfg->datapath_type))) {
1125 /* Add new bridges. */
1126 for (i = 0; i < cfg->n_bridges; i++) {
1127 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
1128 struct bridge *br = bridge_lookup(br_cfg->name);
1130 bridge_create(br_cfg);
1134 shash_destroy(&new_br);
1138 iface_set_ofp_port(struct iface *iface, int ofp_port)
1140 struct bridge *br = iface->port->bridge;
1142 assert(iface->ofp_port < 0 && ofp_port >= 0);
1143 iface->ofp_port = ofp_port;
1144 hmap_insert(&br->ifaces, &iface->ofp_port_node, hash_int(ofp_port, 0));
1145 iface_set_ofport(iface->cfg, ofp_port);
1148 /* Configures 'netdev' based on the "options" column in 'iface_cfg'.
1149 * Returns 0 if successful, otherwise a positive errno value. */
1151 iface_set_netdev_config(const struct ovsrec_interface *iface_cfg,
1152 struct netdev *netdev)
1158 smap_from_ovs_idl_map(iface_cfg->key_options,
1159 iface_cfg->value_options,
1160 iface_cfg->n_options, &args);
1161 error = netdev_set_config(netdev, &args);
1162 smap_destroy(&args);
1165 VLOG_WARN("could not configure network device %s (%s)",
1166 iface_cfg->name, strerror(error));
1171 /* This function determines whether 'ofproto_port', which is attached to
1172 * br->ofproto's datapath, is one that we want in 'br'.
1174 * If it is, it returns true, after creating an iface (if necessary),
1175 * configuring the iface's netdev according to the iface's options, and setting
1176 * iface's ofp_port member to 'ofproto_port->ofp_port'.
1178 * If, on the other hand, 'port' should be removed, it returns false. The
1179 * caller should later detach the port from br->ofproto. */
1181 bridge_refresh_one_ofp_port(struct bridge *br,
1182 const struct ofproto_port *ofproto_port)
1184 const char *name = ofproto_port->name;
1185 const char *type = ofproto_port->type;
1186 uint16_t ofp_port = ofproto_port->ofp_port;
1188 struct iface *iface = iface_lookup(br, name);
1190 /* Check that the name-to-number mapping is one-to-one. */
1191 if (iface->ofp_port >= 0) {
1192 VLOG_WARN("bridge %s: interface %s reported twice",
1195 } else if (iface_from_ofp_port(br, ofp_port)) {
1196 VLOG_WARN("bridge %s: interface %"PRIu16" reported twice",
1197 br->name, ofp_port);
1201 /* There's a configured interface named 'name'. */
1202 if (strcmp(type, iface->type)
1203 || iface_set_netdev_config(iface->cfg, iface->netdev)) {
1204 /* It's the wrong type, or it's the right type but can't be
1205 * configured as the user requested, so we must destroy it. */
1208 /* It's the right type and configured correctly. keep it. */
1209 iface_set_ofp_port(iface, ofp_port);
1212 } else if (bridge_has_bond_fake_iface(br, name)
1213 && !strcmp(type, "internal")) {
1214 /* It's a bond fake iface. Keep it. */
1217 /* There's no configured interface named 'name', but there might be an
1218 * interface of that name queued to be created.
1220 * If there is, and it has the correct type, then try to configure it
1221 * and add it. If that's successful, we'll keep it. Otherwise, we'll
1222 * delete it and later try to re-add it. */
1223 struct if_cfg *if_cfg = if_cfg_lookup(br, name);
1225 && !strcmp(type, iface_get_type(if_cfg->cfg, br->cfg))
1226 && iface_create(br, if_cfg, ofp_port));
1230 /* Update bridges "if_cfg"s, "struct port"s, and "struct iface"s to be
1231 * consistent with the ofp_ports in "br->ofproto". */
1233 bridge_refresh_ofp_port(struct bridge *br)
1235 struct ofproto_port_dump dump;
1236 struct ofproto_port ofproto_port;
1237 struct port *port, *port_next;
1239 /* Clear each "struct iface"s ofp_port so we can get its correct value. */
1240 hmap_clear(&br->ifaces);
1241 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1242 struct iface *iface;
1244 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1245 iface->ofp_port = -1;
1249 /* Obtain the correct "ofp_port"s from ofproto. Find any if_cfg's which
1250 * already exist in the datapath and promote them to full fledged "struct
1251 * iface"s. Mark ports in the datapath which don't belong as garbage. */
1252 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
1253 if (!bridge_refresh_one_ofp_port(br, &ofproto_port)) {
1254 struct ofpp_garbage *garbage = xmalloc(sizeof *garbage);
1255 garbage->ofp_port = ofproto_port.ofp_port;
1256 list_push_front(&br->ofpp_garbage, &garbage->list_node);
1260 /* Some ifaces may not have "ofp_port"s in ofproto and therefore don't
1261 * deserve to have "struct iface"s. Demote these to "if_cfg"s so that
1262 * later they can be added to ofproto. */
1263 HMAP_FOR_EACH_SAFE (port, port_next, hmap_node, &br->ports) {
1264 struct iface *iface, *iface_next;
1266 LIST_FOR_EACH_SAFE (iface, iface_next, port_elem, &port->ifaces) {
1267 if (iface->ofp_port < 0) {
1268 bridge_queue_if_cfg(br, iface->cfg, port->cfg);
1269 iface_destroy(iface);
1273 if (list_is_empty(&port->ifaces)) {
1279 /* Opens a network device for 'iface_cfg' and configures it. If '*ofp_portp'
1280 * is negative, adds the network device to br->ofproto and stores the OpenFlow
1281 * port number in '*ofp_portp'; otherwise leaves br->ofproto and '*ofp_portp'
1284 * If successful, returns 0 and stores the network device in '*netdevp'. On
1285 * failure, returns a positive errno value and stores NULL in '*netdevp'. */
1287 iface_do_create(const struct bridge *br,
1288 const struct ovsrec_interface *iface_cfg,
1289 const struct ovsrec_port *port_cfg,
1290 int *ofp_portp, struct netdev **netdevp)
1292 struct netdev *netdev;
1295 error = netdev_open(iface_cfg->name,
1296 iface_get_type(iface_cfg, br->cfg), &netdev);
1298 VLOG_WARN("could not open network device %s (%s)",
1299 iface_cfg->name, strerror(error));
1303 error = iface_set_netdev_config(iface_cfg, netdev);
1308 if (*ofp_portp < 0) {
1311 error = ofproto_port_add(br->ofproto, netdev, &ofp_port);
1315 *ofp_portp = ofp_port;
1317 VLOG_INFO("bridge %s: added interface %s on port %d",
1318 br->name, iface_cfg->name, *ofp_portp);
1320 VLOG_DBG("bridge %s: interface %s is on port %d",
1321 br->name, iface_cfg->name, *ofp_portp);
1324 if (port_cfg->vlan_mode && !strcmp(port_cfg->vlan_mode, "splinter")) {
1325 netdev_turn_flags_on(netdev, NETDEV_UP, true);
1333 netdev_close(netdev);
1337 /* Creates a new iface on 'br' based on 'if_cfg'. The new iface has OpenFlow
1338 * port number 'ofp_port'. If ofp_port is negative, an OpenFlow port is
1339 * automatically allocated for the iface. Takes ownership of and
1340 * deallocates 'if_cfg'.
1342 * Return true if an iface is successfully created, false otherwise. */
1344 iface_create(struct bridge *br, struct if_cfg *if_cfg, int ofp_port)
1346 const struct ovsrec_interface *iface_cfg = if_cfg->cfg;
1347 const struct ovsrec_port *port_cfg = if_cfg->parent;
1349 struct netdev *netdev;
1350 struct iface *iface;
1354 /* Get rid of 'if_cfg' itself. We already copied out the interesting
1356 hmap_remove(&br->if_cfg_todo, &if_cfg->hmap_node);
1359 /* Do the bits that can fail up front. */
1360 assert(!iface_lookup(br, iface_cfg->name));
1361 error = iface_do_create(br, iface_cfg, port_cfg, &ofp_port, &netdev);
1363 iface_clear_db_record(iface_cfg);
1367 /* Get or create the port structure. */
1368 port = port_lookup(br, port_cfg->name);
1370 port = port_create(br, port_cfg);
1373 /* Create the iface structure. */
1374 iface = xzalloc(sizeof *iface);
1375 list_push_back(&port->ifaces, &iface->port_elem);
1376 hmap_insert(&br->iface_by_name, &iface->name_node,
1377 hash_string(iface_cfg->name, 0));
1379 iface->name = xstrdup(iface_cfg->name);
1380 iface->ofp_port = -1;
1381 iface->netdev = netdev;
1382 iface->type = iface_get_type(iface_cfg, br->cfg);
1383 iface->cfg = iface_cfg;
1385 iface_set_ofp_port(iface, ofp_port);
1387 /* Populate initial status in database. */
1388 iface_refresh_stats(iface);
1389 iface_refresh_status(iface);
1391 /* Add bond fake iface if necessary. */
1392 if (port_is_bond_fake_iface(port)) {
1393 struct ofproto_port ofproto_port;
1395 if (ofproto_port_query_by_name(br->ofproto, port->name,
1397 struct netdev *netdev;
1400 error = netdev_open(port->name, "internal", &netdev);
1402 ofproto_port_add(br->ofproto, netdev, NULL);
1403 netdev_close(netdev);
1405 VLOG_WARN("could not open network device %s (%s)",
1406 port->name, strerror(error));
1409 /* Already exists, nothing to do. */
1410 ofproto_port_destroy(&ofproto_port);
1417 /* Set Flow eviction threshold */
1419 bridge_configure_flow_eviction_threshold(struct bridge *br)
1421 const char *threshold_str;
1425 ovsrec_bridge_get_other_config_value(br->cfg,
1426 "flow-eviction-threshold",
1428 if (threshold_str) {
1429 threshold = strtoul(threshold_str, NULL, 10);
1431 threshold = OFPROTO_FLOW_EVICTON_THRESHOLD_DEFAULT;
1433 ofproto_set_flow_eviction_threshold(br->ofproto, threshold);
1436 /* Set forward BPDU option. */
1438 bridge_configure_forward_bpdu(struct bridge *br)
1440 const char *forward_bpdu_str;
1441 bool forward_bpdu = false;
1443 forward_bpdu_str = ovsrec_bridge_get_other_config_value(br->cfg,
1446 if (forward_bpdu_str && !strcmp(forward_bpdu_str, "true")) {
1447 forward_bpdu = true;
1449 ofproto_set_forward_bpdu(br->ofproto, forward_bpdu);
1452 /* Set MAC aging time for 'br'. */
1454 bridge_configure_mac_idle_time(struct bridge *br)
1456 const char *idle_time_str;
1459 idle_time_str = ovsrec_bridge_get_other_config_value(br->cfg,
1462 idle_time = (idle_time_str && atoi(idle_time_str)
1463 ? atoi(idle_time_str)
1464 : MAC_ENTRY_DEFAULT_IDLE_TIME);
1465 ofproto_set_mac_idle_time(br->ofproto, idle_time);
1469 bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
1470 struct iface **hw_addr_iface)
1472 struct hmapx mirror_output_ports;
1475 bool found_addr = false;
1479 *hw_addr_iface = NULL;
1481 /* Did the user request a particular MAC? */
1482 hwaddr = ovsrec_bridge_get_other_config_value(br->cfg, "hwaddr", NULL);
1483 if (hwaddr && eth_addr_from_string(hwaddr, ea)) {
1484 if (eth_addr_is_multicast(ea)) {
1485 VLOG_ERR("bridge %s: cannot set MAC address to multicast "
1486 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1487 } else if (eth_addr_is_zero(ea)) {
1488 VLOG_ERR("bridge %s: cannot set MAC address to zero", br->name);
1494 /* Mirror output ports don't participate in picking the local hardware
1495 * address. ofproto can't help us find out whether a given port is a
1496 * mirror output because we haven't configured mirrors yet, so we need to
1497 * accumulate them ourselves. */
1498 hmapx_init(&mirror_output_ports);
1499 for (i = 0; i < br->cfg->n_mirrors; i++) {
1500 struct ovsrec_mirror *m = br->cfg->mirrors[i];
1501 if (m->output_port) {
1502 hmapx_add(&mirror_output_ports, m->output_port);
1506 /* Otherwise choose the minimum non-local MAC address among all of the
1508 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1509 uint8_t iface_ea[ETH_ADDR_LEN];
1510 struct iface *candidate;
1511 struct iface *iface;
1513 /* Mirror output ports don't participate. */
1514 if (hmapx_contains(&mirror_output_ports, port->cfg)) {
1518 /* Choose the MAC address to represent the port. */
1520 if (port->cfg->mac && eth_addr_from_string(port->cfg->mac, iface_ea)) {
1521 /* Find the interface with this Ethernet address (if any) so that
1522 * we can provide the correct devname to the caller. */
1523 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1524 uint8_t candidate_ea[ETH_ADDR_LEN];
1525 if (!netdev_get_etheraddr(candidate->netdev, candidate_ea)
1526 && eth_addr_equals(iface_ea, candidate_ea)) {
1531 /* Choose the interface whose MAC address will represent the port.
1532 * The Linux kernel bonding code always chooses the MAC address of
1533 * the first slave added to a bond, and the Fedora networking
1534 * scripts always add slaves to a bond in alphabetical order, so
1535 * for compatibility we choose the interface with the name that is
1536 * first in alphabetical order. */
1537 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1538 if (!iface || strcmp(candidate->name, iface->name) < 0) {
1543 /* The local port doesn't count (since we're trying to choose its
1544 * MAC address anyway). */
1545 if (iface->ofp_port == OFPP_LOCAL) {
1550 error = netdev_get_etheraddr(iface->netdev, iface_ea);
1556 /* Compare against our current choice. */
1557 if (!eth_addr_is_multicast(iface_ea) &&
1558 !eth_addr_is_local(iface_ea) &&
1559 !eth_addr_is_reserved(iface_ea) &&
1560 !eth_addr_is_zero(iface_ea) &&
1561 (!found_addr || eth_addr_compare_3way(iface_ea, ea) < 0))
1563 memcpy(ea, iface_ea, ETH_ADDR_LEN);
1564 *hw_addr_iface = iface;
1569 VLOG_DBG("bridge %s: using bridge Ethernet address "ETH_ADDR_FMT,
1570 br->name, ETH_ADDR_ARGS(ea));
1572 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 10);
1573 memcpy(ea, br->default_ea, ETH_ADDR_LEN);
1574 *hw_addr_iface = NULL;
1575 VLOG_WARN_RL(&rl, "bridge %s: using default bridge Ethernet "
1576 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1579 hmapx_destroy(&mirror_output_ports);
1582 /* Choose and returns the datapath ID for bridge 'br' given that the bridge
1583 * Ethernet address is 'bridge_ea'. If 'bridge_ea' is the Ethernet address of
1584 * an interface on 'br', then that interface must be passed in as
1585 * 'hw_addr_iface'; if 'bridge_ea' was derived some other way, then
1586 * 'hw_addr_iface' must be passed in as a null pointer. */
1588 bridge_pick_datapath_id(struct bridge *br,
1589 const uint8_t bridge_ea[ETH_ADDR_LEN],
1590 struct iface *hw_addr_iface)
1593 * The procedure for choosing a bridge MAC address will, in the most
1594 * ordinary case, also choose a unique MAC that we can use as a datapath
1595 * ID. In some special cases, though, multiple bridges will end up with
1596 * the same MAC address. This is OK for the bridges, but it will confuse
1597 * the OpenFlow controller, because each datapath needs a unique datapath
1600 * Datapath IDs must be unique. It is also very desirable that they be
1601 * stable from one run to the next, so that policy set on a datapath
1604 const char *datapath_id;
1607 datapath_id = ovsrec_bridge_get_other_config_value(br->cfg, "datapath-id",
1609 if (datapath_id && dpid_from_string(datapath_id, &dpid)) {
1613 if (!hw_addr_iface) {
1615 * A purely internal bridge, that is, one that has no non-virtual
1616 * network devices on it at all, is difficult because it has no
1617 * natural unique identifier at all.
1619 * When the host is a XenServer, we handle this case by hashing the
1620 * host's UUID with the name of the bridge. Names of bridges are
1621 * persistent across XenServer reboots, although they can be reused if
1622 * an internal network is destroyed and then a new one is later
1623 * created, so this is fairly effective.
1625 * When the host is not a XenServer, we punt by using a random MAC
1626 * address on each run.
1628 const char *host_uuid = xenserver_get_host_uuid();
1630 char *combined = xasprintf("%s,%s", host_uuid, br->name);
1631 dpid = dpid_from_hash(combined, strlen(combined));
1637 return eth_addr_to_uint64(bridge_ea);
1641 dpid_from_hash(const void *data, size_t n)
1643 uint8_t hash[SHA1_DIGEST_SIZE];
1645 BUILD_ASSERT_DECL(sizeof hash >= ETH_ADDR_LEN);
1646 sha1_bytes(data, n, hash);
1647 eth_addr_mark_random(hash);
1648 return eth_addr_to_uint64(hash);
1652 iface_refresh_status(struct iface *iface)
1656 enum netdev_features current;
1657 enum netdev_flags flags;
1663 if (iface_is_synthetic(iface)) {
1669 if (!netdev_get_drv_info(iface->netdev, &smap)) {
1671 char **keys, **values;
1673 smap_to_ovs_idl_map(&smap, &keys, &values, &n);
1674 ovsrec_interface_set_status(iface->cfg, keys, values, n);
1679 ovsrec_interface_set_status(iface->cfg, NULL, NULL, 0);
1682 smap_destroy(&smap);
1684 error = netdev_get_flags(iface->netdev, &flags);
1686 ovsrec_interface_set_admin_state(iface->cfg,
1687 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;
1727 if (iface_is_synthetic(iface)) {
1731 fault = ofproto_port_get_cfm_fault(iface->port->bridge->ofproto,
1734 const char *reasons[CFM_FAULT_N_REASONS];
1735 bool fault_bool = fault;
1739 for (i = 0; i < CFM_FAULT_N_REASONS; i++) {
1740 int reason = 1 << i;
1741 if (fault & reason) {
1742 reasons[j++] = cfm_fault_reason_to_str(reason);
1746 ovsrec_interface_set_cfm_fault(cfg, &fault_bool, 1);
1747 ovsrec_interface_set_cfm_fault_status(cfg, (char **) reasons, j);
1749 ovsrec_interface_set_cfm_fault(cfg, NULL, 0);
1750 ovsrec_interface_set_cfm_fault_status(cfg, NULL, 0);
1753 error = ofproto_port_get_cfm_remote_mpids(iface->port->bridge->ofproto,
1754 iface->ofp_port, &rmps, &n_rmps);
1756 ovsrec_interface_set_cfm_remote_mpids(cfg, (const int64_t *)rmps,
1759 ovsrec_interface_set_cfm_remote_mpids(cfg, NULL, 0);
1762 health = ofproto_port_get_cfm_health(iface->port->bridge->ofproto,
1765 int64_t cfm_health = health;
1766 ovsrec_interface_set_cfm_health(cfg, &cfm_health, 1);
1768 ovsrec_interface_set_cfm_health(cfg, NULL, 0);
1773 iface_refresh_stats(struct iface *iface)
1775 #define IFACE_STATS \
1776 IFACE_STAT(rx_packets, "rx_packets") \
1777 IFACE_STAT(tx_packets, "tx_packets") \
1778 IFACE_STAT(rx_bytes, "rx_bytes") \
1779 IFACE_STAT(tx_bytes, "tx_bytes") \
1780 IFACE_STAT(rx_dropped, "rx_dropped") \
1781 IFACE_STAT(tx_dropped, "tx_dropped") \
1782 IFACE_STAT(rx_errors, "rx_errors") \
1783 IFACE_STAT(tx_errors, "tx_errors") \
1784 IFACE_STAT(rx_frame_errors, "rx_frame_err") \
1785 IFACE_STAT(rx_over_errors, "rx_over_err") \
1786 IFACE_STAT(rx_crc_errors, "rx_crc_err") \
1787 IFACE_STAT(collisions, "collisions")
1789 #define IFACE_STAT(MEMBER, NAME) NAME,
1790 static char *keys[] = { IFACE_STATS };
1792 int64_t values[ARRAY_SIZE(keys)];
1795 struct netdev_stats stats;
1797 if (iface_is_synthetic(iface)) {
1801 /* Intentionally ignore return value, since errors will set 'stats' to
1802 * all-1s, and we will deal with that correctly below. */
1803 netdev_get_stats(iface->netdev, &stats);
1805 /* Copy statistics into values[] array. */
1807 #define IFACE_STAT(MEMBER, NAME) values[i++] = stats.MEMBER;
1810 assert(i == ARRAY_SIZE(keys));
1812 ovsrec_interface_set_statistics(iface->cfg, keys, values,
1818 br_refresh_stp_status(struct bridge *br)
1820 struct ofproto *ofproto = br->ofproto;
1821 struct ofproto_stp_status status;
1822 char *keys[3], *values[3];
1825 if (ofproto_get_stp_status(ofproto, &status)) {
1829 if (!status.enabled) {
1830 ovsrec_bridge_set_status(br->cfg, NULL, NULL, 0);
1834 keys[0] = "stp_bridge_id",
1835 values[0] = xasprintf(STP_ID_FMT, STP_ID_ARGS(status.bridge_id));
1836 keys[1] = "stp_designated_root",
1837 values[1] = xasprintf(STP_ID_FMT, STP_ID_ARGS(status.designated_root));
1838 keys[2] = "stp_root_path_cost",
1839 values[2] = xasprintf("%d", status.root_path_cost);
1841 ovsrec_bridge_set_status(br->cfg, keys, values, ARRAY_SIZE(values));
1843 for (i = 0; i < ARRAY_SIZE(values); i++) {
1849 port_refresh_stp_status(struct port *port)
1851 struct ofproto *ofproto = port->bridge->ofproto;
1852 struct iface *iface;
1853 struct ofproto_port_stp_status status;
1855 char *str_values[4];
1856 int64_t int_values[3];
1859 if (port_is_synthetic(port)) {
1863 /* STP doesn't currently support bonds. */
1864 if (!list_is_singleton(&port->ifaces)) {
1865 ovsrec_port_set_status(port->cfg, NULL, NULL, 0);
1869 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
1871 if (ofproto_port_get_stp_status(ofproto, iface->ofp_port, &status)) {
1875 if (!status.enabled) {
1876 ovsrec_port_set_status(port->cfg, NULL, NULL, 0);
1877 ovsrec_port_set_statistics(port->cfg, NULL, NULL, 0);
1881 /* Set Status column. */
1882 keys[0] = "stp_port_id";
1883 str_values[0] = xasprintf(STP_PORT_ID_FMT, status.port_id);
1884 keys[1] = "stp_state";
1885 str_values[1] = xstrdup(stp_state_name(status.state));
1886 keys[2] = "stp_sec_in_state";
1887 str_values[2] = xasprintf("%u", status.sec_in_state);
1888 keys[3] = "stp_role";
1889 str_values[3] = xstrdup(stp_role_name(status.role));
1891 ovsrec_port_set_status(port->cfg, keys, str_values,
1892 ARRAY_SIZE(str_values));
1894 for (i = 0; i < ARRAY_SIZE(str_values); i++) {
1895 free(str_values[i]);
1898 /* Set Statistics column. */
1899 keys[0] = "stp_tx_count";
1900 int_values[0] = status.tx_count;
1901 keys[1] = "stp_rx_count";
1902 int_values[1] = status.rx_count;
1903 keys[2] = "stp_error_count";
1904 int_values[2] = status.error_count;
1906 ovsrec_port_set_statistics(port->cfg, keys, int_values,
1907 ARRAY_SIZE(int_values));
1911 enable_system_stats(const struct ovsrec_open_vswitch *cfg)
1915 /* Use other-config:enable-system-stats by preference. */
1916 enable = ovsrec_open_vswitch_get_other_config_value(cfg,
1917 "enable-statistics",
1920 return !strcmp(enable, "true");
1923 /* Disable by default. */
1928 refresh_system_stats(const struct ovsrec_open_vswitch *cfg)
1930 struct ovsdb_datum datum;
1934 if (enable_system_stats(cfg)) {
1935 get_system_stats(&stats);
1938 ovsdb_datum_from_shash(&datum, &stats);
1939 ovsdb_idl_txn_write(&cfg->header_, &ovsrec_open_vswitch_col_statistics,
1943 static inline const char *
1944 nx_role_to_str(enum nx_role role)
1949 case NX_ROLE_MASTER:
1954 return "*** INVALID ROLE ***";
1959 refresh_controller_status(void)
1963 const struct ovsrec_controller *cfg;
1967 /* Accumulate status for controllers on all bridges. */
1968 HMAP_FOR_EACH (br, node, &all_bridges) {
1969 ofproto_get_ofproto_controller_info(br->ofproto, &info);
1972 /* Update each controller in the database with current status. */
1973 OVSREC_CONTROLLER_FOR_EACH(cfg, idl) {
1974 struct ofproto_controller_info *cinfo =
1975 shash_find_data(&info, cfg->target);
1978 ovsrec_controller_set_is_connected(cfg, cinfo->is_connected);
1979 ovsrec_controller_set_role(cfg, nx_role_to_str(cinfo->role));
1980 ovsrec_controller_set_status(cfg, (char **) cinfo->pairs.keys,
1981 (char **) cinfo->pairs.values,
1984 ovsrec_controller_set_is_connected(cfg, false);
1985 ovsrec_controller_set_role(cfg, NULL);
1986 ovsrec_controller_set_status(cfg, NULL, NULL, 0);
1990 ofproto_free_ofproto_controller_info(&info);
1994 refresh_cfm_stats(void)
1996 static struct ovsdb_idl_txn *txn = NULL;
2001 txn = ovsdb_idl_txn_create(idl);
2003 HMAP_FOR_EACH (br, node, &all_bridges) {
2004 struct iface *iface;
2006 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
2007 iface_refresh_cfm_stats(iface);
2012 if (ovsdb_idl_txn_commit(txn) != TXN_INCOMPLETE) {
2013 ovsdb_idl_txn_destroy(txn);
2018 /* Performs periodic activity required by bridges that needs to be done with
2019 * the least possible latency.
2021 * It makes sense to call this function a couple of times per poll loop, to
2022 * provide a significant performance boost on some benchmarks with ofprotos
2023 * that use the ofproto-dpif implementation. */
2025 bridge_run_fast(void)
2029 HMAP_FOR_EACH (br, node, &all_bridges) {
2030 ofproto_run_fast(br->ofproto);
2037 static const struct ovsrec_open_vswitch null_cfg;
2038 const struct ovsrec_open_vswitch *cfg;
2039 struct ovsdb_idl_txn *reconf_txn = NULL;
2041 bool vlan_splinters_changed;
2044 /* (Re)configure if necessary. */
2045 if (!reconfiguring) {
2048 if (ovsdb_idl_is_lock_contended(idl)) {
2049 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
2050 struct bridge *br, *next_br;
2052 VLOG_ERR_RL(&rl, "another ovs-vswitchd process is running, "
2053 "disabling this process until it goes away");
2055 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
2059 } else if (!ovsdb_idl_has_lock(idl)) {
2063 cfg = ovsrec_open_vswitch_first(idl);
2065 /* Let each bridge do the work that it needs to do. */
2066 HMAP_FOR_EACH (br, node, &all_bridges) {
2067 ofproto_run(br->ofproto);
2070 /* Re-configure SSL. We do this on every trip through the main loop,
2071 * instead of just when the database changes, because the contents of the
2072 * key and certificate files can change without the database changing.
2074 * We do this before bridge_reconfigure() because that function might
2075 * initiate SSL connections and thus requires SSL to be configured. */
2076 if (cfg && cfg->ssl) {
2077 const struct ovsrec_ssl *ssl = cfg->ssl;
2079 stream_ssl_set_key_and_cert(ssl->private_key, ssl->certificate);
2080 stream_ssl_set_ca_cert_file(ssl->ca_cert, ssl->bootstrap_ca_cert);
2083 if (!reconfiguring) {
2084 /* If VLAN splinters are in use, then we need to reconfigure if VLAN
2085 * usage has changed. */
2086 vlan_splinters_changed = false;
2087 if (vlan_splinters_enabled_anywhere) {
2088 HMAP_FOR_EACH (br, node, &all_bridges) {
2089 if (ofproto_has_vlan_usage_changed(br->ofproto)) {
2090 vlan_splinters_changed = true;
2096 if (ovsdb_idl_get_seqno(idl) != idl_seqno || vlan_splinters_changed) {
2097 idl_seqno = ovsdb_idl_get_seqno(idl);
2099 reconf_txn = ovsdb_idl_txn_create(idl);
2100 bridge_reconfigure(cfg);
2102 /* We still need to reconfigure to avoid dangling pointers to
2103 * now-destroyed ovsrec structures inside bridge data. */
2104 bridge_reconfigure(&null_cfg);
2109 if (reconfiguring) {
2112 reconf_txn = ovsdb_idl_txn_create(idl);
2114 if (bridge_reconfigure_continue(cfg)) {
2115 ovsrec_open_vswitch_set_cur_cfg(cfg, cfg->next_cfg);
2118 bridge_reconfigure_continue(&null_cfg);
2123 ovsdb_idl_txn_commit(reconf_txn);
2124 ovsdb_idl_txn_destroy(reconf_txn);
2128 /* Refresh system and interface stats if necessary. */
2129 if (time_msec() >= stats_timer) {
2131 struct ovsdb_idl_txn *txn;
2133 txn = ovsdb_idl_txn_create(idl);
2134 HMAP_FOR_EACH (br, node, &all_bridges) {
2138 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
2139 struct iface *iface;
2141 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
2142 iface_refresh_stats(iface);
2143 iface_refresh_status(iface);
2147 HMAP_FOR_EACH (m, hmap_node, &br->mirrors) {
2148 mirror_refresh_stats(m);
2152 refresh_system_stats(cfg);
2153 refresh_controller_status();
2154 ovsdb_idl_txn_commit(txn);
2155 ovsdb_idl_txn_destroy(txn); /* XXX */
2158 stats_timer = time_msec() + STATS_INTERVAL;
2161 if (time_msec() >= db_limiter) {
2162 struct ovsdb_idl_txn *txn;
2164 txn = ovsdb_idl_txn_create(idl);
2165 HMAP_FOR_EACH (br, node, &all_bridges) {
2166 struct iface *iface;
2169 br_refresh_stp_status(br);
2171 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
2172 port_refresh_stp_status(port);
2175 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
2176 const char *link_state;
2177 int64_t link_resets;
2180 if (iface_is_synthetic(iface)) {
2184 current = ofproto_port_is_lacp_current(br->ofproto,
2188 ovsrec_interface_set_lacp_current(iface->cfg, &bl, 1);
2190 ovsrec_interface_set_lacp_current(iface->cfg, NULL, 0);
2193 link_state = netdev_get_carrier(iface->netdev) ? "up" : "down";
2194 ovsrec_interface_set_link_state(iface->cfg, link_state);
2196 link_resets = netdev_get_carrier_resets(iface->netdev);
2197 ovsrec_interface_set_link_resets(iface->cfg, &link_resets, 1);
2201 if (ovsdb_idl_txn_commit(txn) != TXN_UNCHANGED) {
2202 db_limiter = time_msec() + DB_LIMIT_INTERVAL;
2204 ovsdb_idl_txn_destroy(txn);
2207 refresh_cfm_stats();
2213 ovsdb_idl_wait(idl);
2215 if (reconfiguring) {
2216 poll_immediate_wake();
2219 if (!hmap_is_empty(&all_bridges)) {
2222 HMAP_FOR_EACH (br, node, &all_bridges) {
2223 ofproto_wait(br->ofproto);
2225 poll_timer_wait_until(stats_timer);
2227 if (db_limiter > time_msec()) {
2228 poll_timer_wait_until(db_limiter);
2233 /* Adds some memory usage statistics for bridges into 'usage', for use with
2234 * memory_report(). */
2236 bridge_get_memory_usage(struct simap *usage)
2240 HMAP_FOR_EACH (br, node, &all_bridges) {
2241 ofproto_get_memory_usage(br->ofproto, usage);
2245 /* QoS unixctl user interface functions. */
2247 struct qos_unixctl_show_cbdata {
2249 struct iface *iface;
2253 qos_unixctl_show_cb(unsigned int queue_id,
2254 const struct smap *details,
2257 struct qos_unixctl_show_cbdata *data = aux;
2258 struct ds *ds = data->ds;
2259 struct iface *iface = data->iface;
2260 struct netdev_queue_stats stats;
2261 struct smap_node *node;
2264 ds_put_cstr(ds, "\n");
2266 ds_put_format(ds, "Queue %u:\n", queue_id);
2268 ds_put_cstr(ds, "Default:\n");
2271 SMAP_FOR_EACH (node, details) {
2272 ds_put_format(ds, "\t%s: %s\n", node->key, node->value);
2275 error = netdev_get_queue_stats(iface->netdev, queue_id, &stats);
2277 if (stats.tx_packets != UINT64_MAX) {
2278 ds_put_format(ds, "\ttx_packets: %"PRIu64"\n", stats.tx_packets);
2281 if (stats.tx_bytes != UINT64_MAX) {
2282 ds_put_format(ds, "\ttx_bytes: %"PRIu64"\n", stats.tx_bytes);
2285 if (stats.tx_errors != UINT64_MAX) {
2286 ds_put_format(ds, "\ttx_errors: %"PRIu64"\n", stats.tx_errors);
2289 ds_put_format(ds, "\tFailed to get statistics for queue %u: %s",
2290 queue_id, strerror(error));
2295 qos_unixctl_show(struct unixctl_conn *conn, int argc OVS_UNUSED,
2296 const char *argv[], void *aux OVS_UNUSED)
2298 struct ds ds = DS_EMPTY_INITIALIZER;
2299 struct smap smap = SMAP_INITIALIZER(&smap);
2300 struct iface *iface;
2302 struct smap_node *node;
2303 struct qos_unixctl_show_cbdata data;
2306 iface = iface_find(argv[1]);
2308 unixctl_command_reply_error(conn, "no such interface");
2312 netdev_get_qos(iface->netdev, &type, &smap);
2314 if (*type != '\0') {
2315 ds_put_format(&ds, "QoS: %s %s\n", iface->name, type);
2317 SMAP_FOR_EACH (node, &smap) {
2318 ds_put_format(&ds, "%s: %s\n", node->key, node->value);
2323 error = netdev_dump_queues(iface->netdev, qos_unixctl_show_cb, &data);
2326 ds_put_format(&ds, "failed to dump queues: %s", strerror(error));
2328 unixctl_command_reply(conn, ds_cstr(&ds));
2330 ds_put_format(&ds, "QoS not configured on %s\n", iface->name);
2331 unixctl_command_reply_error(conn, ds_cstr(&ds));
2334 smap_destroy(&smap);
2338 /* Bridge reconfiguration functions. */
2340 bridge_create(const struct ovsrec_bridge *br_cfg)
2344 assert(!bridge_lookup(br_cfg->name));
2345 br = xzalloc(sizeof *br);
2347 br->name = xstrdup(br_cfg->name);
2348 br->type = xstrdup(ofproto_normalize_type(br_cfg->datapath_type));
2351 /* Derive the default Ethernet address from the bridge's UUID. This should
2352 * be unique and it will be stable between ovs-vswitchd runs. */
2353 memcpy(br->default_ea, &br_cfg->header_.uuid, ETH_ADDR_LEN);
2354 eth_addr_mark_random(br->default_ea);
2356 hmap_init(&br->ports);
2357 hmap_init(&br->ifaces);
2358 hmap_init(&br->iface_by_name);
2359 hmap_init(&br->mirrors);
2361 hmap_init(&br->if_cfg_todo);
2362 list_init(&br->ofpp_garbage);
2364 hmap_insert(&all_bridges, &br->node, hash_string(br->name, 0));
2368 bridge_destroy(struct bridge *br)
2371 struct mirror *mirror, *next_mirror;
2372 struct port *port, *next_port;
2373 struct if_cfg *if_cfg, *next_if_cfg;
2374 struct ofpp_garbage *garbage, *next_garbage;
2376 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
2379 HMAP_FOR_EACH_SAFE (mirror, next_mirror, hmap_node, &br->mirrors) {
2380 mirror_destroy(mirror);
2382 HMAP_FOR_EACH_SAFE (if_cfg, next_if_cfg, hmap_node, &br->if_cfg_todo) {
2383 hmap_remove(&br->if_cfg_todo, &if_cfg->hmap_node);
2386 LIST_FOR_EACH_SAFE (garbage, next_garbage, list_node,
2387 &br->ofpp_garbage) {
2388 list_remove(&garbage->list_node);
2392 hmap_remove(&all_bridges, &br->node);
2393 ofproto_destroy(br->ofproto);
2394 hmap_destroy(&br->ifaces);
2395 hmap_destroy(&br->ports);
2396 hmap_destroy(&br->iface_by_name);
2397 hmap_destroy(&br->mirrors);
2398 hmap_destroy(&br->if_cfg_todo);
2405 static struct bridge *
2406 bridge_lookup(const char *name)
2410 HMAP_FOR_EACH_WITH_HASH (br, node, hash_string(name, 0), &all_bridges) {
2411 if (!strcmp(br->name, name)) {
2418 /* Handle requests for a listing of all flows known by the OpenFlow
2419 * stack, including those normally hidden. */
2421 bridge_unixctl_dump_flows(struct unixctl_conn *conn, int argc OVS_UNUSED,
2422 const char *argv[], void *aux OVS_UNUSED)
2427 br = bridge_lookup(argv[1]);
2429 unixctl_command_reply_error(conn, "Unknown bridge");
2434 ofproto_get_all_flows(br->ofproto, &results);
2436 unixctl_command_reply(conn, ds_cstr(&results));
2437 ds_destroy(&results);
2440 /* "bridge/reconnect [BRIDGE]": makes BRIDGE drop all of its controller
2441 * connections and reconnect. If BRIDGE is not specified, then all bridges
2442 * drop their controller connections and reconnect. */
2444 bridge_unixctl_reconnect(struct unixctl_conn *conn, int argc,
2445 const char *argv[], void *aux OVS_UNUSED)
2449 br = bridge_lookup(argv[1]);
2451 unixctl_command_reply_error(conn, "Unknown bridge");
2454 ofproto_reconnect_controllers(br->ofproto);
2456 HMAP_FOR_EACH (br, node, &all_bridges) {
2457 ofproto_reconnect_controllers(br->ofproto);
2460 unixctl_command_reply(conn, NULL);
2464 bridge_get_controllers(const struct bridge *br,
2465 struct ovsrec_controller ***controllersp)
2467 struct ovsrec_controller **controllers;
2468 size_t n_controllers;
2470 controllers = br->cfg->controller;
2471 n_controllers = br->cfg->n_controller;
2473 if (n_controllers == 1 && !strcmp(controllers[0]->target, "none")) {
2479 *controllersp = controllers;
2481 return n_controllers;
2485 bridge_queue_if_cfg(struct bridge *br,
2486 const struct ovsrec_interface *cfg,
2487 const struct ovsrec_port *parent)
2489 struct if_cfg *if_cfg = xmalloc(sizeof *if_cfg);
2492 if_cfg->parent = parent;
2493 hmap_insert(&br->if_cfg_todo, &if_cfg->hmap_node,
2494 hash_string(if_cfg->cfg->name, 0));
2497 /* Deletes "struct port"s and "struct iface"s under 'br' which aren't
2498 * consistent with 'br->cfg'. Updates 'br->if_cfg_queue' with interfaces which
2499 * 'br' needs to complete its configuration. */
2501 bridge_add_del_ports(struct bridge *br,
2502 const unsigned long int *splinter_vlans)
2504 struct shash_node *port_node;
2505 struct port *port, *next;
2506 struct shash new_ports;
2509 assert(hmap_is_empty(&br->if_cfg_todo));
2511 /* Collect new ports. */
2512 shash_init(&new_ports);
2513 for (i = 0; i < br->cfg->n_ports; i++) {
2514 const char *name = br->cfg->ports[i]->name;
2515 if (!shash_add_once(&new_ports, name, br->cfg->ports[i])) {
2516 VLOG_WARN("bridge %s: %s specified twice as bridge port",
2520 if (bridge_get_controllers(br, NULL)
2521 && !shash_find(&new_ports, br->name)) {
2522 VLOG_WARN("bridge %s: no port named %s, synthesizing one",
2523 br->name, br->name);
2525 br->synth_local_port.interfaces = &br->synth_local_ifacep;
2526 br->synth_local_port.n_interfaces = 1;
2527 br->synth_local_port.name = br->name;
2529 br->synth_local_iface.name = br->name;
2530 br->synth_local_iface.type = "internal";
2532 br->synth_local_ifacep = &br->synth_local_iface;
2534 shash_add(&new_ports, br->name, &br->synth_local_port);
2537 if (splinter_vlans) {
2538 add_vlan_splinter_ports(br, splinter_vlans, &new_ports);
2541 /* Get rid of deleted ports.
2542 * Get rid of deleted interfaces on ports that still exist. */
2543 HMAP_FOR_EACH_SAFE (port, next, hmap_node, &br->ports) {
2544 port->cfg = shash_find_data(&new_ports, port->name);
2548 port_del_ifaces(port);
2552 /* Update iface->cfg and iface->type in interfaces that still exist.
2553 * Add new interfaces to creation queue. */
2554 SHASH_FOR_EACH (port_node, &new_ports) {
2555 const struct ovsrec_port *port = port_node->data;
2558 for (i = 0; i < port->n_interfaces; i++) {
2559 const struct ovsrec_interface *cfg = port->interfaces[i];
2560 struct iface *iface = iface_lookup(br, cfg->name);
2561 const char *type = iface_get_type(cfg, br->cfg);
2566 } else if (strcmp(type, "null")) {
2567 bridge_queue_if_cfg(br, cfg, port);
2572 shash_destroy(&new_ports);
2575 /* Initializes 'oc' appropriately as a management service controller for
2578 * The caller must free oc->target when it is no longer needed. */
2580 bridge_ofproto_controller_for_mgmt(const struct bridge *br,
2581 struct ofproto_controller *oc)
2583 oc->target = xasprintf("punix:%s/%s.mgmt", ovs_rundir(), br->name);
2584 oc->max_backoff = 0;
2585 oc->probe_interval = 60;
2586 oc->band = OFPROTO_OUT_OF_BAND;
2588 oc->burst_limit = 0;
2589 oc->enable_async_msgs = true;
2592 /* Converts ovsrec_controller 'c' into an ofproto_controller in 'oc'. */
2594 bridge_ofproto_controller_from_ovsrec(const struct ovsrec_controller *c,
2595 struct ofproto_controller *oc)
2597 const char *config_str;
2599 oc->target = c->target;
2600 oc->max_backoff = c->max_backoff ? *c->max_backoff / 1000 : 8;
2601 oc->probe_interval = c->inactivity_probe ? *c->inactivity_probe / 1000 : 5;
2602 oc->band = (!c->connection_mode || !strcmp(c->connection_mode, "in-band")
2603 ? OFPROTO_IN_BAND : OFPROTO_OUT_OF_BAND);
2604 oc->rate_limit = c->controller_rate_limit ? *c->controller_rate_limit : 0;
2605 oc->burst_limit = (c->controller_burst_limit
2606 ? *c->controller_burst_limit : 0);
2607 oc->enable_async_msgs = (!c->enable_async_messages
2608 || *c->enable_async_messages);
2609 config_str = ovsrec_controller_get_other_config_value(c, "dscp", NULL);
2611 oc->dscp = DSCP_DEFAULT;
2613 int dscp = atoi(config_str);
2615 if (dscp >= 0 && dscp <= 63) {
2621 /* Configures the IP stack for 'br''s local interface properly according to the
2622 * configuration in 'c'. */
2624 bridge_configure_local_iface_netdev(struct bridge *br,
2625 struct ovsrec_controller *c)
2627 struct netdev *netdev;
2628 struct in_addr mask, gateway;
2630 struct iface *local_iface;
2633 /* If there's no local interface or no IP address, give up. */
2634 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
2635 if (!local_iface || !c->local_ip || !inet_aton(c->local_ip, &ip)) {
2639 /* Bring up the local interface. */
2640 netdev = local_iface->netdev;
2641 netdev_turn_flags_on(netdev, NETDEV_UP, true);
2643 /* Configure the IP address and netmask. */
2644 if (!c->local_netmask
2645 || !inet_aton(c->local_netmask, &mask)
2647 mask.s_addr = guess_netmask(ip.s_addr);
2649 if (!netdev_set_in4(netdev, ip, mask)) {
2650 VLOG_INFO("bridge %s: configured IP address "IP_FMT", netmask "IP_FMT,
2651 br->name, IP_ARGS(&ip.s_addr), IP_ARGS(&mask.s_addr));
2654 /* Configure the default gateway. */
2655 if (c->local_gateway
2656 && inet_aton(c->local_gateway, &gateway)
2657 && gateway.s_addr) {
2658 if (!netdev_add_router(netdev, gateway)) {
2659 VLOG_INFO("bridge %s: configured gateway "IP_FMT,
2660 br->name, IP_ARGS(&gateway.s_addr));
2665 /* Returns true if 'a' and 'b' are the same except that any number of slashes
2666 * in either string are treated as equal to any number of slashes in the other,
2667 * e.g. "x///y" is equal to "x/y". */
2669 equal_pathnames(const char *a, const char *b)
2673 a += strspn(a, "/");
2674 b += strspn(b, "/");
2675 } else if (*a == '\0') {
2686 bridge_configure_remotes(struct bridge *br,
2687 const struct sockaddr_in *managers, size_t n_managers)
2689 const char *disable_ib_str, *queue_id_str;
2690 bool disable_in_band = false;
2693 struct ovsrec_controller **controllers;
2694 size_t n_controllers;
2696 enum ofproto_fail_mode fail_mode;
2698 struct ofproto_controller *ocs;
2702 /* Check if we should disable in-band control on this bridge. */
2703 disable_ib_str = ovsrec_bridge_get_other_config_value(br->cfg,
2706 if (disable_ib_str && !strcmp(disable_ib_str, "true")) {
2707 disable_in_band = true;
2710 /* Set OpenFlow queue ID for in-band control. */
2711 queue_id_str = ovsrec_bridge_get_other_config_value(br->cfg,
2714 queue_id = queue_id_str ? strtol(queue_id_str, NULL, 10) : -1;
2715 ofproto_set_in_band_queue(br->ofproto, queue_id);
2717 if (disable_in_band) {
2718 ofproto_set_extra_in_band_remotes(br->ofproto, NULL, 0);
2720 ofproto_set_extra_in_band_remotes(br->ofproto, managers, n_managers);
2723 n_controllers = bridge_get_controllers(br, &controllers);
2725 ocs = xmalloc((n_controllers + 1) * sizeof *ocs);
2728 bridge_ofproto_controller_for_mgmt(br, &ocs[n_ocs++]);
2729 for (i = 0; i < n_controllers; i++) {
2730 struct ovsrec_controller *c = controllers[i];
2732 if (!strncmp(c->target, "punix:", 6)
2733 || !strncmp(c->target, "unix:", 5)) {
2734 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2737 whitelist = xasprintf("unix:%s/%s.controller",
2738 ovs_rundir(), br->name);
2739 if (!equal_pathnames(c->target, whitelist)) {
2740 /* Prevent remote ovsdb-server users from accessing arbitrary
2741 * Unix domain sockets and overwriting arbitrary local
2743 VLOG_ERR_RL(&rl, "bridge %s: Not adding Unix domain socket "
2744 "controller \"%s\" due to possibility for remote "
2745 "exploit. Instead, specify whitelisted \"%s\" or "
2746 "connect to \"unix:%s/%s.mgmt\" (which is always "
2747 "available without special configuration).",
2748 br->name, c->target, whitelist,
2749 ovs_rundir(), br->name);
2757 bridge_configure_local_iface_netdev(br, c);
2758 bridge_ofproto_controller_from_ovsrec(c, &ocs[n_ocs]);
2759 if (disable_in_band) {
2760 ocs[n_ocs].band = OFPROTO_OUT_OF_BAND;
2765 ofproto_set_controllers(br->ofproto, ocs, n_ocs);
2766 free(ocs[0].target); /* From bridge_ofproto_controller_for_mgmt(). */
2769 /* Set the fail-mode. */
2770 fail_mode = !br->cfg->fail_mode
2771 || !strcmp(br->cfg->fail_mode, "standalone")
2772 ? OFPROTO_FAIL_STANDALONE
2773 : OFPROTO_FAIL_SECURE;
2774 ofproto_set_fail_mode(br->ofproto, fail_mode);
2776 /* Configure OpenFlow controller connection snooping. */
2777 if (!ofproto_has_snoops(br->ofproto)) {
2781 sset_add_and_free(&snoops, xasprintf("punix:%s/%s.snoop",
2782 ovs_rundir(), br->name));
2783 ofproto_set_snoops(br->ofproto, &snoops);
2784 sset_destroy(&snoops);
2789 bridge_configure_tables(struct bridge *br)
2791 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2795 n_tables = ofproto_get_n_tables(br->ofproto);
2797 for (i = 0; i < n_tables; i++) {
2798 struct ofproto_table_settings s;
2801 s.max_flows = UINT_MAX;
2805 if (j < br->cfg->n_flow_tables && i == br->cfg->key_flow_tables[j]) {
2806 struct ovsrec_flow_table *cfg = br->cfg->value_flow_tables[j++];
2809 if (cfg->n_flow_limit && *cfg->flow_limit < UINT_MAX) {
2810 s.max_flows = *cfg->flow_limit;
2812 if (cfg->overflow_policy
2813 && !strcmp(cfg->overflow_policy, "evict")) {
2816 s.groups = xmalloc(cfg->n_groups * sizeof *s.groups);
2817 for (k = 0; k < cfg->n_groups; k++) {
2818 const char *string = cfg->groups[k];
2821 msg = mf_parse_subfield__(&s.groups[k], &string);
2823 VLOG_WARN_RL(&rl, "bridge %s table %d: error parsing "
2824 "'groups' (%s)", br->name, i, msg);
2826 } else if (*string) {
2827 VLOG_WARN_RL(&rl, "bridge %s table %d: 'groups' "
2828 "element '%s' contains trailing garbage",
2829 br->name, i, cfg->groups[k]);
2837 ofproto_configure_table(br->ofproto, i, &s);
2841 for (; j < br->cfg->n_flow_tables; j++) {
2842 VLOG_WARN_RL(&rl, "bridge %s: ignoring configuration for flow table "
2843 "%"PRId64" not supported by this datapath", br->name,
2844 br->cfg->key_flow_tables[j]);
2848 /* Port functions. */
2850 static struct port *
2851 port_create(struct bridge *br, const struct ovsrec_port *cfg)
2855 port = xzalloc(sizeof *port);
2857 port->name = xstrdup(cfg->name);
2859 list_init(&port->ifaces);
2861 hmap_insert(&br->ports, &port->hmap_node, hash_string(port->name, 0));
2865 /* Deletes interfaces from 'port' that are no longer configured for it. */
2867 port_del_ifaces(struct port *port)
2869 struct iface *iface, *next;
2870 struct sset new_ifaces;
2873 /* Collect list of new interfaces. */
2874 sset_init(&new_ifaces);
2875 for (i = 0; i < port->cfg->n_interfaces; i++) {
2876 const char *name = port->cfg->interfaces[i]->name;
2877 const char *type = port->cfg->interfaces[i]->type;
2878 if (strcmp(type, "null")) {
2879 sset_add(&new_ifaces, name);
2883 /* Get rid of deleted interfaces. */
2884 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2885 if (!sset_contains(&new_ifaces, iface->name)) {
2886 iface_destroy(iface);
2890 sset_destroy(&new_ifaces);
2894 port_destroy(struct port *port)
2897 struct bridge *br = port->bridge;
2898 struct iface *iface, *next;
2901 ofproto_bundle_unregister(br->ofproto, port);
2904 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2905 iface_destroy(iface);
2908 hmap_remove(&br->ports, &port->hmap_node);
2914 static struct port *
2915 port_lookup(const struct bridge *br, const char *name)
2919 HMAP_FOR_EACH_WITH_HASH (port, hmap_node, hash_string(name, 0),
2921 if (!strcmp(port->name, name)) {
2929 enable_lacp(struct port *port, bool *activep)
2931 if (!port->cfg->lacp) {
2932 /* XXX when LACP implementation has been sufficiently tested, enable by
2933 * default and make active on bonded ports. */
2935 } else if (!strcmp(port->cfg->lacp, "off")) {
2937 } else if (!strcmp(port->cfg->lacp, "active")) {
2940 } else if (!strcmp(port->cfg->lacp, "passive")) {
2944 VLOG_WARN("port %s: unknown LACP mode %s",
2945 port->name, port->cfg->lacp);
2950 static struct lacp_settings *
2951 port_configure_lacp(struct port *port, struct lacp_settings *s)
2953 const char *lacp_time, *system_id;
2956 if (!enable_lacp(port, &s->active)) {
2960 s->name = port->name;
2962 system_id = ovsrec_port_get_other_config_value(port->cfg, "lacp-system-id",
2965 if (sscanf(system_id, ETH_ADDR_SCAN_FMT,
2966 ETH_ADDR_SCAN_ARGS(s->id)) != ETH_ADDR_SCAN_COUNT) {
2967 VLOG_WARN("port %s: LACP system ID (%s) must be an Ethernet"
2968 " address.", port->name, system_id);
2972 memcpy(s->id, port->bridge->ea, ETH_ADDR_LEN);
2975 if (eth_addr_is_zero(s->id)) {
2976 VLOG_WARN("port %s: Invalid zero LACP system ID.", port->name);
2980 /* Prefer bondable links if unspecified. */
2981 priority = atoi(ovsrec_port_get_other_config_value(port->cfg,
2982 "lacp-system-priority",
2984 s->priority = (priority > 0 && priority <= UINT16_MAX
2986 : UINT16_MAX - !list_is_short(&port->ifaces));
2988 lacp_time = ovsrec_port_get_other_config_value(port->cfg, "lacp-time",
2990 s->fast = !strcasecmp(lacp_time, "fast");
2995 iface_configure_lacp(struct iface *iface, struct lacp_slave_settings *s)
2997 int priority, portid, key;
2999 portid = atoi(ovsrec_interface_get_other_config_value(iface->cfg,
3003 atoi(ovsrec_interface_get_other_config_value(iface->cfg,
3004 "lacp-port-priority",
3006 key = atoi(ovsrec_interface_get_other_config_value(iface->cfg,
3007 "lacp-aggregation-key",
3010 if (portid <= 0 || portid > UINT16_MAX) {
3011 portid = iface->ofp_port;
3014 if (priority <= 0 || priority > UINT16_MAX) {
3015 priority = UINT16_MAX;
3018 if (key < 0 || key > UINT16_MAX) {
3022 s->name = iface->name;
3024 s->priority = priority;
3029 port_configure_bond(struct port *port, struct bond_settings *s,
3030 uint32_t *bond_stable_ids)
3032 const char *detect_s;
3033 struct iface *iface;
3034 int miimon_interval;
3037 s->name = port->name;
3039 if (port->cfg->bond_mode) {
3040 if (!bond_mode_from_string(&s->balance, port->cfg->bond_mode)) {
3041 VLOG_WARN("port %s: unknown bond_mode %s, defaulting to %s",
3042 port->name, port->cfg->bond_mode,
3043 bond_mode_to_string(s->balance));
3046 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
3048 /* XXX: Post version 1.5.*, the default bond_mode changed from SLB to
3049 * active-backup. At some point we should remove this warning. */
3050 VLOG_WARN_RL(&rl, "port %s: Using the default bond_mode %s. Note that"
3051 " in previous versions, the default bond_mode was"
3052 " balance-slb", port->name,
3053 bond_mode_to_string(s->balance));
3055 if (s->balance == BM_SLB && port->bridge->cfg->n_flood_vlans) {
3056 VLOG_WARN("port %s: SLB bonds are incompatible with flood_vlans, "
3057 "please use another bond type or disable flood_vlans",
3062 atoi(ovsrec_port_get_other_config_value(port->cfg,
3063 "bond-miimon-interval", "0"));
3064 if (miimon_interval <= 0) {
3065 miimon_interval = 200;
3068 detect_s = ovsrec_port_get_other_config_value(port->cfg,
3071 if (!strcmp(detect_s, "carrier")) {
3072 miimon_interval = 0;
3073 } else if (strcmp(detect_s, "miimon")) {
3074 VLOG_WARN("port %s: unsupported bond-detect-mode %s, "
3075 "defaulting to carrier", port->name, detect_s);
3076 miimon_interval = 0;
3079 s->up_delay = MAX(0, port->cfg->bond_updelay);
3080 s->down_delay = MAX(0, port->cfg->bond_downdelay);
3081 s->basis = atoi(ovsrec_port_get_other_config_value(port->cfg,
3084 s->rebalance_interval = atoi(
3085 ovsrec_port_get_other_config_value(port->cfg,
3086 "bond-rebalance-interval",
3088 if (s->rebalance_interval && s->rebalance_interval < 1000) {
3089 s->rebalance_interval = 1000;
3092 s->fake_iface = port->cfg->bond_fake_iface;
3095 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
3096 long long stable_id;
3099 atoll(ovsrec_interface_get_other_config_value(iface->cfg,
3102 if (stable_id <= 0 || stable_id >= UINT32_MAX) {
3103 stable_id = iface->ofp_port;
3105 bond_stable_ids[i++] = stable_id;
3107 netdev_set_miimon_interval(iface->netdev, miimon_interval);
3111 /* Returns true if 'port' is synthetic, that is, if we constructed it locally
3112 * instead of obtaining it from the database. */
3114 port_is_synthetic(const struct port *port)
3116 return ovsdb_idl_row_is_synthetic(&port->cfg->header_);
3119 /* Interface functions. */
3121 /* Returns the correct network device type for interface 'iface' in bridge
3124 iface_get_type(const struct ovsrec_interface *iface,
3125 const struct ovsrec_bridge *br)
3127 /* The local port always has type "internal". Other ports take their type
3128 * from the database and default to "system" if none is specified. */
3129 return (!strcmp(iface->name, br->name) ? "internal"
3130 : iface->type[0] ? iface->type
3135 iface_destroy(struct iface *iface)
3138 struct port *port = iface->port;
3139 struct bridge *br = port->bridge;
3141 if (br->ofproto && iface->ofp_port >= 0) {
3142 ofproto_port_unregister(br->ofproto, iface->ofp_port);
3145 if (iface->ofp_port >= 0) {
3146 hmap_remove(&br->ifaces, &iface->ofp_port_node);
3149 list_remove(&iface->port_elem);
3150 hmap_remove(&br->iface_by_name, &iface->name_node);
3152 netdev_close(iface->netdev);
3159 static struct iface *
3160 iface_lookup(const struct bridge *br, const char *name)
3162 struct iface *iface;
3164 HMAP_FOR_EACH_WITH_HASH (iface, name_node, hash_string(name, 0),
3165 &br->iface_by_name) {
3166 if (!strcmp(iface->name, name)) {
3174 static struct iface *
3175 iface_find(const char *name)
3177 const struct bridge *br;
3179 HMAP_FOR_EACH (br, node, &all_bridges) {
3180 struct iface *iface = iface_lookup(br, name);
3189 static struct if_cfg *
3190 if_cfg_lookup(const struct bridge *br, const char *name)
3192 struct if_cfg *if_cfg;
3194 HMAP_FOR_EACH_WITH_HASH (if_cfg, hmap_node, hash_string(name, 0),
3196 if (!strcmp(if_cfg->cfg->name, name)) {
3204 static struct iface *
3205 iface_from_ofp_port(const struct bridge *br, uint16_t ofp_port)
3207 struct iface *iface;
3209 HMAP_FOR_EACH_IN_BUCKET (iface, ofp_port_node,
3210 hash_int(ofp_port, 0), &br->ifaces) {
3211 if (iface->ofp_port == ofp_port) {
3218 /* Set Ethernet address of 'iface', if one is specified in the configuration
3221 iface_set_mac(struct iface *iface)
3223 uint8_t ea[ETH_ADDR_LEN];
3225 if (!strcmp(iface->type, "internal")
3226 && iface->cfg->mac && eth_addr_from_string(iface->cfg->mac, ea)) {
3227 if (iface->ofp_port == OFPP_LOCAL) {
3228 VLOG_ERR("interface %s: ignoring mac in Interface record "
3229 "(use Bridge record to set local port's mac)",
3231 } else if (eth_addr_is_multicast(ea)) {
3232 VLOG_ERR("interface %s: cannot set MAC to multicast address",
3235 int error = netdev_set_etheraddr(iface->netdev, ea);
3237 VLOG_ERR("interface %s: setting MAC failed (%s)",
3238 iface->name, strerror(error));
3244 /* Sets the ofport column of 'if_cfg' to 'ofport'. */
3246 iface_set_ofport(const struct ovsrec_interface *if_cfg, int64_t ofport)
3248 if (if_cfg && !ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
3249 ovsrec_interface_set_ofport(if_cfg, &ofport, 1);
3253 /* Clears all of the fields in 'if_cfg' that indicate interface status, and
3254 * sets the "ofport" field to -1.
3256 * This is appropriate when 'if_cfg''s interface cannot be created or is
3257 * otherwise invalid. */
3259 iface_clear_db_record(const struct ovsrec_interface *if_cfg)
3261 if (!ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
3262 iface_set_ofport(if_cfg, -1);
3263 ovsrec_interface_set_status(if_cfg, NULL, NULL, 0);
3264 ovsrec_interface_set_admin_state(if_cfg, NULL);
3265 ovsrec_interface_set_duplex(if_cfg, NULL);
3266 ovsrec_interface_set_link_speed(if_cfg, NULL, 0);
3267 ovsrec_interface_set_link_state(if_cfg, NULL);
3268 ovsrec_interface_set_mtu(if_cfg, NULL, 0);
3269 ovsrec_interface_set_cfm_fault(if_cfg, NULL, 0);
3270 ovsrec_interface_set_cfm_fault_status(if_cfg, NULL, 0);
3271 ovsrec_interface_set_cfm_remote_mpids(if_cfg, NULL, 0);
3272 ovsrec_interface_set_lacp_current(if_cfg, NULL, 0);
3273 ovsrec_interface_set_statistics(if_cfg, NULL, NULL, 0);
3277 /* Adds the 'n' key-value pairs in 'keys' in 'values' to 'shash'. */
3279 smap_from_ovs_idl_map(char **keys, char **values, size_t n, struct smap *smap)
3284 for (i = 0; i < n; i++) {
3285 smap_add(smap, keys[i], values[i]);
3289 /* Creates 'keys' and 'values' arrays from 'shash'.
3291 * Sets 'keys' and 'values' to heap allocated arrays representing the key-value
3292 * pairs in 'smap'. The caller takes ownership of 'keys' and 'values'. They
3293 * are populated with with strings taken directly from 'shash' and thus have
3294 * the same ownership of the key-value pairs in shash.
3297 smap_to_ovs_idl_map(struct smap *smap,
3298 char ***keys, char ***values, size_t *n)
3302 struct smap_node *sn;
3304 count = smap_count(smap);
3306 k = xmalloc(count * sizeof *k);
3307 v = xmalloc(count * sizeof *v);
3310 SMAP_FOR_EACH(sn, smap) {
3321 struct iface_delete_queues_cbdata {
3322 struct netdev *netdev;
3323 const struct ovsdb_datum *queues;
3327 queue_ids_include(const struct ovsdb_datum *queues, int64_t target)
3329 union ovsdb_atom atom;
3331 atom.integer = target;
3332 return ovsdb_datum_find_key(queues, &atom, OVSDB_TYPE_INTEGER) != UINT_MAX;
3336 iface_delete_queues(unsigned int queue_id,
3337 const struct smap *details OVS_UNUSED, void *cbdata_)
3339 struct iface_delete_queues_cbdata *cbdata = cbdata_;
3341 if (!queue_ids_include(cbdata->queues, queue_id)) {
3342 netdev_delete_queue(cbdata->netdev, queue_id);
3347 iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos)
3349 struct ofpbuf queues_buf;
3351 ofpbuf_init(&queues_buf, 0);
3353 if (!qos || qos->type[0] == '\0' || qos->n_queues < 1) {
3354 netdev_set_qos(iface->netdev, NULL, NULL);
3356 struct iface_delete_queues_cbdata cbdata;
3357 struct smap details;
3361 /* Configure top-level Qos for 'iface'. */
3362 smap_from_ovs_idl_map(qos->key_other_config, qos->value_other_config,
3363 qos->n_other_config, &details);
3364 netdev_set_qos(iface->netdev, qos->type, &details);
3365 smap_destroy(&details);
3367 /* Deconfigure queues that were deleted. */
3368 cbdata.netdev = iface->netdev;
3369 cbdata.queues = ovsrec_qos_get_queues(qos, OVSDB_TYPE_INTEGER,
3371 netdev_dump_queues(iface->netdev, iface_delete_queues, &cbdata);
3373 /* Configure queues for 'iface'. */
3375 for (i = 0; i < qos->n_queues; i++) {
3376 const struct ovsrec_queue *queue = qos->value_queues[i];
3377 unsigned int queue_id = qos->key_queues[i];
3379 if (queue_id == 0) {
3383 if (queue->n_dscp == 1) {
3384 struct ofproto_port_queue *port_queue;
3386 port_queue = ofpbuf_put_uninit(&queues_buf,
3387 sizeof *port_queue);
3388 port_queue->queue = queue_id;
3389 port_queue->dscp = queue->dscp[0];
3392 smap_from_ovs_idl_map(queue->key_other_config,
3393 queue->value_other_config,
3394 queue->n_other_config, &details);
3395 netdev_set_queue(iface->netdev, queue_id, &details);
3396 smap_destroy(&details);
3399 smap_init(&details);
3400 netdev_set_queue(iface->netdev, 0, &details);
3401 smap_destroy(&details);
3405 if (iface->ofp_port >= 0) {
3406 const struct ofproto_port_queue *port_queues = queues_buf.data;
3407 size_t n_queues = queues_buf.size / sizeof *port_queues;
3409 ofproto_port_set_queues(iface->port->bridge->ofproto, iface->ofp_port,
3410 port_queues, n_queues);
3413 netdev_set_policing(iface->netdev,
3414 iface->cfg->ingress_policing_rate,
3415 iface->cfg->ingress_policing_burst);
3417 ofpbuf_uninit(&queues_buf);
3421 iface_configure_cfm(struct iface *iface)
3423 const struct ovsrec_interface *cfg = iface->cfg;
3424 const char *extended_str, *opstate_str;
3425 const char *cfm_ccm_vlan;
3426 struct cfm_settings s;
3428 if (!cfg->n_cfm_mpid) {
3429 ofproto_port_clear_cfm(iface->port->bridge->ofproto, iface->ofp_port);
3433 s.mpid = *cfg->cfm_mpid;
3434 s.interval = atoi(ovsrec_interface_get_other_config_value(iface->cfg,
3437 cfm_ccm_vlan = ovsrec_interface_get_other_config_value(iface->cfg,
3440 s.ccm_pcp = atoi(ovsrec_interface_get_other_config_value(iface->cfg,
3443 if (s.interval <= 0) {
3447 if (!strcasecmp("random", cfm_ccm_vlan)) {
3448 s.ccm_vlan = CFM_RANDOM_VLAN;
3450 s.ccm_vlan = atoi(cfm_ccm_vlan);
3451 if (s.ccm_vlan == CFM_RANDOM_VLAN) {
3456 extended_str = ovsrec_interface_get_other_config_value(iface->cfg,
3459 s.extended = !strcasecmp("true", extended_str);
3461 opstate_str = ovsrec_interface_get_other_config_value(iface->cfg,
3464 s.opup = !strcasecmp("up", opstate_str);
3466 ofproto_port_set_cfm(iface->port->bridge->ofproto, iface->ofp_port, &s);
3469 /* Returns true if 'iface' is synthetic, that is, if we constructed it locally
3470 * instead of obtaining it from the database. */
3472 iface_is_synthetic(const struct iface *iface)
3474 return ovsdb_idl_row_is_synthetic(&iface->cfg->header_);
3478 /* Port mirroring. */
3480 static struct mirror *
3481 mirror_find_by_uuid(struct bridge *br, const struct uuid *uuid)
3485 HMAP_FOR_EACH_IN_BUCKET (m, hmap_node, uuid_hash(uuid), &br->mirrors) {
3486 if (uuid_equals(uuid, &m->uuid)) {
3494 bridge_configure_mirrors(struct bridge *br)
3496 const struct ovsdb_datum *mc;
3497 unsigned long *flood_vlans;
3498 struct mirror *m, *next;
3501 /* Get rid of deleted mirrors. */
3502 mc = ovsrec_bridge_get_mirrors(br->cfg, OVSDB_TYPE_UUID);
3503 HMAP_FOR_EACH_SAFE (m, next, hmap_node, &br->mirrors) {
3504 union ovsdb_atom atom;
3506 atom.uuid = m->uuid;
3507 if (ovsdb_datum_find_key(mc, &atom, OVSDB_TYPE_UUID) == UINT_MAX) {
3512 /* Add new mirrors and reconfigure existing ones. */
3513 for (i = 0; i < br->cfg->n_mirrors; i++) {
3514 const struct ovsrec_mirror *cfg = br->cfg->mirrors[i];
3515 struct mirror *m = mirror_find_by_uuid(br, &cfg->header_.uuid);
3517 m = mirror_create(br, cfg);
3520 if (!mirror_configure(m)) {
3525 /* Update flooded vlans (for RSPAN). */
3526 flood_vlans = vlan_bitmap_from_array(br->cfg->flood_vlans,
3527 br->cfg->n_flood_vlans);
3528 ofproto_set_flood_vlans(br->ofproto, flood_vlans);
3529 bitmap_free(flood_vlans);
3532 static struct mirror *
3533 mirror_create(struct bridge *br, const struct ovsrec_mirror *cfg)
3537 m = xzalloc(sizeof *m);
3538 m->uuid = cfg->header_.uuid;
3539 hmap_insert(&br->mirrors, &m->hmap_node, uuid_hash(&m->uuid));
3541 m->name = xstrdup(cfg->name);
3547 mirror_destroy(struct mirror *m)
3550 struct bridge *br = m->bridge;
3553 ofproto_mirror_unregister(br->ofproto, m);
3556 hmap_remove(&br->mirrors, &m->hmap_node);
3563 mirror_collect_ports(struct mirror *m,
3564 struct ovsrec_port **in_ports, int n_in_ports,
3565 void ***out_portsp, size_t *n_out_portsp)
3567 void **out_ports = xmalloc(n_in_ports * sizeof *out_ports);
3568 size_t n_out_ports = 0;
3571 for (i = 0; i < n_in_ports; i++) {
3572 const char *name = in_ports[i]->name;
3573 struct port *port = port_lookup(m->bridge, name);
3575 out_ports[n_out_ports++] = port;
3577 VLOG_WARN("bridge %s: mirror %s cannot match on nonexistent "
3578 "port %s", m->bridge->name, m->name, name);
3581 *out_portsp = out_ports;
3582 *n_out_portsp = n_out_ports;
3586 mirror_configure(struct mirror *m)
3588 const struct ovsrec_mirror *cfg = m->cfg;
3589 struct ofproto_mirror_settings s;
3592 if (strcmp(cfg->name, m->name)) {
3594 m->name = xstrdup(cfg->name);
3598 /* Get output port or VLAN. */
3599 if (cfg->output_port) {
3600 s.out_bundle = port_lookup(m->bridge, cfg->output_port->name);
3601 if (!s.out_bundle) {
3602 VLOG_ERR("bridge %s: mirror %s outputs to port not on bridge",
3603 m->bridge->name, m->name);
3606 s.out_vlan = UINT16_MAX;
3608 if (cfg->output_vlan) {
3609 VLOG_ERR("bridge %s: mirror %s specifies both output port and "
3610 "output vlan; ignoring output vlan",
3611 m->bridge->name, m->name);
3613 } else if (cfg->output_vlan) {
3614 /* The database should prevent invalid VLAN values. */
3615 s.out_bundle = NULL;
3616 s.out_vlan = *cfg->output_vlan;
3618 VLOG_ERR("bridge %s: mirror %s does not specify output; ignoring",
3619 m->bridge->name, m->name);
3623 /* Get port selection. */
3624 if (cfg->select_all) {
3625 size_t n_ports = hmap_count(&m->bridge->ports);
3626 void **ports = xmalloc(n_ports * sizeof *ports);
3631 HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) {
3641 /* Get ports, dropping ports that don't exist.
3642 * The IDL ensures that there are no duplicates. */
3643 mirror_collect_ports(m, cfg->select_src_port, cfg->n_select_src_port,
3644 &s.srcs, &s.n_srcs);
3645 mirror_collect_ports(m, cfg->select_dst_port, cfg->n_select_dst_port,
3646 &s.dsts, &s.n_dsts);
3649 /* Get VLAN selection. */
3650 s.src_vlans = vlan_bitmap_from_array(cfg->select_vlan, cfg->n_select_vlan);
3653 ofproto_mirror_register(m->bridge->ofproto, m, &s);
3656 if (s.srcs != s.dsts) {
3665 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
3667 * This is deprecated. It is only for compatibility with broken device drivers
3668 * in old versions of Linux that do not properly support VLANs when VLAN
3669 * devices are not used. When broken device drivers are no longer in
3670 * widespread use, we will delete these interfaces. */
3672 static struct ovsrec_port **recs;
3673 static size_t n_recs, allocated_recs;
3675 /* Adds 'rec' to a list of recs that have to be destroyed when the VLAN
3676 * splinters are reconfigured. */
3678 register_rec(struct ovsrec_port *rec)
3680 if (n_recs >= allocated_recs) {
3681 recs = x2nrealloc(recs, &allocated_recs, sizeof *recs);
3683 recs[n_recs++] = rec;
3686 /* Frees all of the ports registered with register_reg(). */
3688 free_registered_recs(void)
3692 for (i = 0; i < n_recs; i++) {
3693 struct ovsrec_port *port = recs[i];
3696 for (j = 0; j < port->n_interfaces; j++) {
3697 struct ovsrec_interface *iface = port->interfaces[j];
3702 free(port->interfaces);
3705 free(port->key_other_config);
3706 free(port->value_other_config[0]);
3707 free(port->value_other_config);
3713 /* Returns true if VLAN splinters are enabled on 'iface_cfg', false
3716 vlan_splinters_is_enabled(const struct ovsrec_interface *iface_cfg)
3720 value = ovsrec_interface_get_other_config_value(iface_cfg,
3721 "enable-vlan-splinters",
3723 return !strcmp(value, "true");
3726 /* Figures out the set of VLANs that are in use for the purpose of VLAN
3729 * If VLAN splinters are enabled on at least one interface and any VLANs are in
3730 * use, returns a 4096-bit bitmap with a 1-bit for each in-use VLAN (bits 0 and
3731 * 4095 will not be set). The caller is responsible for freeing the bitmap,
3734 * If VLANs splinters are not enabled on any interface or if no VLANs are in
3735 * use, returns NULL.
3737 * Updates 'vlan_splinters_enabled_anywhere'. */
3738 static unsigned long int *
3739 collect_splinter_vlans(const struct ovsrec_open_vswitch *ovs_cfg)
3741 unsigned long int *splinter_vlans;
3742 struct sset splinter_ifaces;
3743 const char *real_dev_name;
3744 struct shash *real_devs;
3745 struct shash_node *node;
3749 /* Free space allocated for synthesized ports and interfaces, since we're
3750 * in the process of reconstructing all of them. */
3751 free_registered_recs();
3753 splinter_vlans = bitmap_allocate(4096);
3754 sset_init(&splinter_ifaces);
3755 vlan_splinters_enabled_anywhere = false;
3756 for (i = 0; i < ovs_cfg->n_bridges; i++) {
3757 struct ovsrec_bridge *br_cfg = ovs_cfg->bridges[i];
3760 for (j = 0; j < br_cfg->n_ports; j++) {
3761 struct ovsrec_port *port_cfg = br_cfg->ports[j];
3764 for (k = 0; k < port_cfg->n_interfaces; k++) {
3765 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[k];
3767 if (vlan_splinters_is_enabled(iface_cfg)) {
3768 vlan_splinters_enabled_anywhere = true;
3769 sset_add(&splinter_ifaces, iface_cfg->name);
3770 vlan_bitmap_from_array__(port_cfg->trunks,
3776 if (port_cfg->tag && *port_cfg->tag > 0 && *port_cfg->tag < 4095) {
3777 bitmap_set1(splinter_vlans, *port_cfg->tag);
3782 if (!vlan_splinters_enabled_anywhere) {
3783 free(splinter_vlans);
3784 sset_destroy(&splinter_ifaces);
3788 HMAP_FOR_EACH (br, node, &all_bridges) {
3790 ofproto_get_vlan_usage(br->ofproto, splinter_vlans);
3794 /* Don't allow VLANs 0 or 4095 to be splintered. VLAN 0 should appear on
3795 * the real device. VLAN 4095 is reserved and Linux doesn't allow a VLAN
3796 * device to be created for it. */
3797 bitmap_set0(splinter_vlans, 0);
3798 bitmap_set0(splinter_vlans, 4095);
3800 /* Delete all VLAN devices that we don't need. */
3802 real_devs = vlandev_get_real_devs();
3803 SHASH_FOR_EACH (node, real_devs) {
3804 const struct vlan_real_dev *real_dev = node->data;
3805 const struct vlan_dev *vlan_dev;
3806 bool real_dev_has_splinters;
3808 real_dev_has_splinters = sset_contains(&splinter_ifaces,
3810 HMAP_FOR_EACH (vlan_dev, hmap_node, &real_dev->vlan_devs) {
3811 if (!real_dev_has_splinters
3812 || !bitmap_is_set(splinter_vlans, vlan_dev->vid)) {
3813 struct netdev *netdev;
3815 if (!netdev_open(vlan_dev->name, "system", &netdev)) {
3816 if (!netdev_get_in4(netdev, NULL, NULL) ||
3817 !netdev_get_in6(netdev, NULL)) {
3818 vlandev_del(vlan_dev->name);
3820 /* It has an IP address configured, so we don't own
3821 * it. Don't delete it. */
3823 netdev_close(netdev);
3830 /* Add all VLAN devices that we need. */
3831 SSET_FOR_EACH (real_dev_name, &splinter_ifaces) {
3834 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
3835 if (!vlandev_get_name(real_dev_name, vid)) {
3836 vlandev_add(real_dev_name, vid);
3843 sset_destroy(&splinter_ifaces);
3845 if (bitmap_scan(splinter_vlans, 0, 4096) >= 4096) {
3846 free(splinter_vlans);
3849 return splinter_vlans;
3852 /* Pushes the configure of VLAN splinter port 'port' (e.g. eth0.9) down to
3855 configure_splinter_port(struct port *port)
3857 struct ofproto *ofproto = port->bridge->ofproto;
3858 uint16_t realdev_ofp_port;
3859 const char *realdev_name;
3860 struct iface *vlandev, *realdev;
3862 ofproto_bundle_unregister(port->bridge->ofproto, port);
3864 vlandev = CONTAINER_OF(list_front(&port->ifaces), struct iface,
3867 realdev_name = ovsrec_port_get_other_config_value(port->cfg,
3869 realdev = iface_lookup(port->bridge, realdev_name);
3870 realdev_ofp_port = realdev ? realdev->ofp_port : 0;
3872 ofproto_port_set_realdev(ofproto, vlandev->ofp_port, realdev_ofp_port,
3876 static struct ovsrec_port *
3877 synthesize_splinter_port(const char *real_dev_name,
3878 const char *vlan_dev_name, int vid)
3880 struct ovsrec_interface *iface;
3881 struct ovsrec_port *port;
3883 iface = xzalloc(sizeof *iface);
3884 iface->name = xstrdup(vlan_dev_name);
3885 iface->type = "system";
3887 port = xzalloc(sizeof *port);
3888 port->interfaces = xmemdup(&iface, sizeof iface);
3889 port->n_interfaces = 1;
3890 port->name = xstrdup(vlan_dev_name);
3891 port->vlan_mode = "splinter";
3892 port->tag = xmalloc(sizeof *port->tag);
3894 port->key_other_config = xmalloc(sizeof *port->key_other_config);
3895 port->key_other_config[0] = "realdev";
3896 port->value_other_config = xmalloc(sizeof *port->value_other_config);
3897 port->value_other_config[0] = xstrdup(real_dev_name);
3898 port->n_other_config = 1;
3904 /* For each interface with 'br' that has VLAN splinters enabled, adds a
3905 * corresponding ovsrec_port to 'ports' for each splinter VLAN marked with a
3906 * 1-bit in the 'splinter_vlans' bitmap. */
3908 add_vlan_splinter_ports(struct bridge *br,
3909 const unsigned long int *splinter_vlans,
3910 struct shash *ports)
3914 /* We iterate through 'br->cfg->ports' instead of 'ports' here because
3915 * we're modifying 'ports'. */
3916 for (i = 0; i < br->cfg->n_ports; i++) {
3917 const char *name = br->cfg->ports[i]->name;
3918 struct ovsrec_port *port_cfg = shash_find_data(ports, name);
3921 for (j = 0; j < port_cfg->n_interfaces; j++) {
3922 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[j];
3924 if (vlan_splinters_is_enabled(iface_cfg)) {
3925 const char *real_dev_name;
3928 real_dev_name = iface_cfg->name;
3929 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
3930 const char *vlan_dev_name;
3932 vlan_dev_name = vlandev_get_name(real_dev_name, vid);
3934 && !shash_find(ports, vlan_dev_name)) {
3935 shash_add(ports, vlan_dev_name,
3936 synthesize_splinter_port(
3937 real_dev_name, vlan_dev_name, vid));
3946 mirror_refresh_stats(struct mirror *m)
3948 struct ofproto *ofproto = m->bridge->ofproto;
3949 uint64_t tx_packets, tx_bytes;
3952 size_t stat_cnt = 0;
3954 if (ofproto_mirror_get_stats(ofproto, m, &tx_packets, &tx_bytes)) {
3955 ovsrec_mirror_set_statistics(m->cfg, NULL, NULL, 0);
3959 if (tx_packets != UINT64_MAX) {
3960 keys[stat_cnt] = "tx_packets";
3961 values[stat_cnt] = tx_packets;
3964 if (tx_bytes != UINT64_MAX) {
3965 keys[stat_cnt] = "tx_bytes";
3966 values[stat_cnt] = tx_bytes;
3970 ovsrec_mirror_set_statistics(m->cfg, keys, values, stat_cnt);