1 /* Copyright (c) 2008, 2009, 2010, 2011 Nicira Networks
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
28 #include "dynamic-string.h"
35 #include "ofp-print.h"
37 #include "ofproto/ofproto.h"
38 #include "poll-loop.h"
41 #include "socket-util.h"
42 #include "stream-ssl.h"
44 #include "system-stats.h"
49 #include "vswitchd/vswitch-idl.h"
50 #include "xenserver.h"
52 #include "sflow_api.h"
53 #include "vlan-bitmap.h"
55 VLOG_DEFINE_THIS_MODULE(bridge);
57 COVERAGE_DEFINE(bridge_reconfigure);
60 /* These members are always valid. */
61 struct list port_elem; /* Element in struct port's "ifaces" list. */
62 struct hmap_node name_node; /* In struct bridge's "iface_by_name" hmap. */
63 struct port *port; /* Containing port. */
64 char *name; /* Host network device name. */
65 tag_type tag; /* Tag associated with this interface. */
67 /* These members are valid only after bridge_reconfigure() causes them to
69 struct hmap_node ofp_port_node; /* In struct bridge's "ifaces" hmap. */
70 int ofp_port; /* OpenFlow port number, -1 if unknown. */
71 struct netdev *netdev; /* Network device. */
72 const char *type; /* Usually same as cfg->type. */
73 const struct ovsrec_interface *cfg;
77 struct uuid uuid; /* UUID of this "mirror" record in database. */
78 struct hmap_node hmap_node; /* In struct bridge's "mirrors" hmap. */
79 struct bridge *bridge;
81 const struct ovsrec_mirror *cfg;
85 struct bridge *bridge;
86 struct hmap_node hmap_node; /* Element in struct bridge's "ports" hmap. */
89 const struct ovsrec_port *cfg;
91 /* An ordinary bridge port has 1 interface.
92 * A bridge port for bonding has at least 2 interfaces. */
93 struct list ifaces; /* List of "struct iface"s. */
97 struct hmap_node node; /* In 'all_bridges'. */
98 char *name; /* User-specified arbitrary name. */
99 char *type; /* Datapath type. */
100 uint8_t ea[ETH_ADDR_LEN]; /* Bridge Ethernet Address. */
101 uint8_t default_ea[ETH_ADDR_LEN]; /* Default MAC. */
102 const struct ovsrec_bridge *cfg;
104 /* OpenFlow switch processing. */
105 struct ofproto *ofproto; /* OpenFlow switch. */
108 struct hmap ports; /* "struct port"s indexed by name. */
109 struct hmap ifaces; /* "struct iface"s indexed by ofp_port. */
110 struct hmap iface_by_name; /* "struct iface"s indexed by name. */
112 /* Port mirroring. */
113 struct hmap mirrors; /* "struct mirror" indexed by UUID. */
115 /* Synthetic local port if necessary. */
116 struct ovsrec_port synth_local_port;
117 struct ovsrec_interface synth_local_iface;
118 struct ovsrec_interface *synth_local_ifacep;
121 /* All bridges, indexed by name. */
122 static struct hmap all_bridges = HMAP_INITIALIZER(&all_bridges);
124 /* OVSDB IDL used to obtain configuration. */
125 static struct ovsdb_idl *idl;
127 /* Each time this timer expires, the bridge fetches systems and interface
128 * statistics and pushes them into the database. */
129 #define STATS_INTERVAL (5 * 1000) /* In milliseconds. */
130 static long long int stats_timer = LLONG_MIN;
132 /* Stores the time after which rate limited statistics may be written to the
133 * database. Only updated when changes to the database require rate limiting.
135 #define DB_LIMIT_INTERVAL (1 * 1000) /* In milliseconds. */
136 static long long int db_limiter = LLONG_MIN;
138 static void add_del_bridges(const struct ovsrec_open_vswitch *);
139 static void bridge_del_ofprotos(void);
140 static bool bridge_add_ofprotos(struct bridge *);
141 static void bridge_create(const struct ovsrec_bridge *);
142 static void bridge_destroy(struct bridge *);
143 static struct bridge *bridge_lookup(const char *name);
144 static unixctl_cb_func bridge_unixctl_dump_flows;
145 static unixctl_cb_func bridge_unixctl_reconnect;
146 static size_t bridge_get_controllers(const struct bridge *br,
147 struct ovsrec_controller ***controllersp);
148 static void bridge_add_del_ports(struct bridge *,
149 const unsigned long int *splinter_vlans);
150 static void bridge_add_ofproto_ports(struct bridge *);
151 static void bridge_del_ofproto_ports(struct bridge *);
152 static void bridge_refresh_ofp_port(struct bridge *);
153 static void bridge_configure_datapath_id(struct bridge *);
154 static void bridge_configure_flow_eviction_threshold(struct bridge *);
155 static void bridge_configure_netflow(struct bridge *);
156 static void bridge_configure_forward_bpdu(struct bridge *);
157 static void bridge_configure_sflow(struct bridge *, int *sflow_bridge_number);
158 static void bridge_configure_stp(struct bridge *);
159 static void bridge_configure_remotes(struct bridge *,
160 const struct sockaddr_in *managers,
162 static void bridge_pick_local_hw_addr(struct bridge *,
163 uint8_t ea[ETH_ADDR_LEN],
164 struct iface **hw_addr_iface);
165 static uint64_t bridge_pick_datapath_id(struct bridge *,
166 const uint8_t bridge_ea[ETH_ADDR_LEN],
167 struct iface *hw_addr_iface);
168 static const char *bridge_get_other_config(const struct ovsrec_bridge *,
170 static const char *get_port_other_config(const struct ovsrec_port *,
172 const char *default_value);
173 static uint64_t dpid_from_hash(const void *, size_t nbytes);
174 static bool bridge_has_bond_fake_iface(const struct bridge *,
176 static bool port_is_bond_fake_iface(const struct port *);
178 static unixctl_cb_func qos_unixctl_show;
180 static struct port *port_create(struct bridge *, const struct ovsrec_port *);
181 static void port_add_ifaces(struct port *);
182 static void port_del_ifaces(struct port *);
183 static void port_destroy(struct port *);
184 static struct port *port_lookup(const struct bridge *, const char *name);
185 static void port_configure(struct port *);
186 static struct lacp_settings *port_configure_lacp(struct port *,
187 struct lacp_settings *);
188 static void port_configure_bond(struct port *, struct bond_settings *,
189 uint32_t *bond_stable_ids);
190 static bool port_is_synthetic(const struct port *);
192 static void bridge_configure_mirrors(struct bridge *);
193 static struct mirror *mirror_create(struct bridge *,
194 const struct ovsrec_mirror *);
195 static void mirror_destroy(struct mirror *);
196 static bool mirror_configure(struct mirror *);
197 static void mirror_refresh_stats(struct mirror *);
199 static void iface_configure_lacp(struct iface *, struct lacp_slave_settings *);
200 static struct iface *iface_create(struct port *port,
201 const struct ovsrec_interface *if_cfg);
202 static void iface_destroy(struct iface *);
203 static struct iface *iface_lookup(const struct bridge *, const char *name);
204 static struct iface *iface_find(const char *name);
205 static struct iface *iface_from_ofp_port(const struct bridge *,
207 static void iface_set_mac(struct iface *);
208 static void iface_set_ofport(const struct ovsrec_interface *, int64_t ofport);
209 static void iface_clear_db_record(const struct ovsrec_interface *if_cfg);
210 static void iface_configure_qos(struct iface *, const struct ovsrec_qos *);
211 static void iface_configure_cfm(struct iface *);
212 static void iface_refresh_cfm_stats(struct iface *);
213 static void iface_refresh_stats(struct iface *);
214 static void iface_refresh_status(struct iface *);
215 static bool iface_is_synthetic(const struct iface *);
216 static const char *get_interface_other_config(const struct ovsrec_interface *,
218 const char *default_value);
220 static void shash_from_ovs_idl_map(char **keys, char **values, size_t n,
222 static void shash_to_ovs_idl_map(struct shash *,
223 char ***keys, char ***values, size_t *n);
225 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
227 * This is deprecated. It is only for compatibility with broken device drivers
228 * in old versions of Linux that do not properly support VLANs when VLAN
229 * devices are not used. When broken device drivers are no longer in
230 * widespread use, we will delete these interfaces. */
232 /* True if VLAN splinters are enabled on any interface, false otherwise.*/
233 static bool vlan_splinters_enabled_anywhere;
235 static bool vlan_splinters_is_enabled(const struct ovsrec_interface *);
236 static unsigned long int *collect_splinter_vlans(
237 const struct ovsrec_open_vswitch *);
238 static void configure_splinter_port(struct port *);
239 static void add_vlan_splinter_ports(struct bridge *,
240 const unsigned long int *splinter_vlans,
241 struct shash *ports);
243 /* Public functions. */
245 /* Initializes the bridge module, configuring it to obtain its configuration
246 * from an OVSDB server accessed over 'remote', which should be a string in a
247 * form acceptable to ovsdb_idl_create(). */
249 bridge_init(const char *remote)
251 /* Create connection to database. */
252 idl = ovsdb_idl_create(remote, &ovsrec_idl_class, true);
253 ovsdb_idl_set_lock(idl, "ovs_vswitchd");
255 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_cur_cfg);
256 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_statistics);
257 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_external_ids);
258 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_ovs_version);
259 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_db_version);
260 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_type);
261 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_version);
263 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_datapath_id);
264 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_status);
265 ovsdb_idl_omit(idl, &ovsrec_bridge_col_external_ids);
267 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_status);
268 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_statistics);
269 ovsdb_idl_omit(idl, &ovsrec_port_col_external_ids);
270 ovsdb_idl_omit(idl, &ovsrec_port_col_fake_bridge);
272 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_admin_state);
273 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_duplex);
274 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_speed);
275 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_state);
276 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_resets);
277 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mtu);
278 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ofport);
279 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_statistics);
280 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_status);
281 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault);
282 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_remote_mpids);
283 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_lacp_current);
284 ovsdb_idl_omit(idl, &ovsrec_interface_col_external_ids);
286 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_is_connected);
287 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_role);
288 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_status);
289 ovsdb_idl_omit(idl, &ovsrec_controller_col_external_ids);
291 ovsdb_idl_omit(idl, &ovsrec_qos_col_external_ids);
293 ovsdb_idl_omit(idl, &ovsrec_queue_col_external_ids);
295 ovsdb_idl_omit(idl, &ovsrec_mirror_col_external_ids);
296 ovsdb_idl_omit_alert(idl, &ovsrec_mirror_col_statistics);
298 ovsdb_idl_omit(idl, &ovsrec_netflow_col_external_ids);
300 ovsdb_idl_omit(idl, &ovsrec_sflow_col_external_ids);
302 ovsdb_idl_omit(idl, &ovsrec_manager_col_external_ids);
303 ovsdb_idl_omit(idl, &ovsrec_manager_col_inactivity_probe);
304 ovsdb_idl_omit(idl, &ovsrec_manager_col_is_connected);
305 ovsdb_idl_omit(idl, &ovsrec_manager_col_max_backoff);
306 ovsdb_idl_omit(idl, &ovsrec_manager_col_status);
308 ovsdb_idl_omit(idl, &ovsrec_ssl_col_external_ids);
310 /* Register unixctl commands. */
311 unixctl_command_register("qos/show", "interface", qos_unixctl_show, NULL);
312 unixctl_command_register("bridge/dump-flows", "bridge",
313 bridge_unixctl_dump_flows, NULL);
314 unixctl_command_register("bridge/reconnect", "[bridge]",
315 bridge_unixctl_reconnect, NULL);
324 struct bridge *br, *next_br;
326 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
329 ovsdb_idl_destroy(idl);
332 /* Looks at the list of managers in 'ovs_cfg' and extracts their remote IP
333 * addresses and ports into '*managersp' and '*n_managersp'. The caller is
334 * responsible for freeing '*managersp' (with free()).
336 * You may be asking yourself "why does ovs-vswitchd care?", because
337 * ovsdb-server is responsible for connecting to the managers, and ovs-vswitchd
338 * should not be and in fact is not directly involved in that. But
339 * ovs-vswitchd needs to make sure that ovsdb-server can reach the managers, so
340 * it has to tell in-band control where the managers are to enable that.
341 * (Thus, only managers connected in-band are collected.)
344 collect_in_band_managers(const struct ovsrec_open_vswitch *ovs_cfg,
345 struct sockaddr_in **managersp, size_t *n_managersp)
347 struct sockaddr_in *managers = NULL;
348 size_t n_managers = 0;
352 /* Collect all of the potential targets from the "targets" columns of the
353 * rows pointed to by "manager_options", excluding any that are
356 for (i = 0; i < ovs_cfg->n_manager_options; i++) {
357 struct ovsrec_manager *m = ovs_cfg->manager_options[i];
359 if (m->connection_mode && !strcmp(m->connection_mode, "out-of-band")) {
360 sset_find_and_delete(&targets, m->target);
362 sset_add(&targets, m->target);
366 /* Now extract the targets' IP addresses. */
367 if (!sset_is_empty(&targets)) {
370 managers = xmalloc(sset_count(&targets) * sizeof *managers);
371 SSET_FOR_EACH (target, &targets) {
372 struct sockaddr_in *sin = &managers[n_managers];
374 if ((!strncmp(target, "tcp:", 4)
375 && inet_parse_active(target + 4, JSONRPC_TCP_PORT, sin)) ||
376 (!strncmp(target, "ssl:", 4)
377 && inet_parse_active(target + 4, JSONRPC_SSL_PORT, sin))) {
382 sset_destroy(&targets);
384 *managersp = managers;
385 *n_managersp = n_managers;
389 bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
391 unsigned long int *splinter_vlans;
392 struct sockaddr_in *managers;
393 struct bridge *br, *next;
394 int sflow_bridge_number;
397 COVERAGE_INC(bridge_reconfigure);
399 /* Create and destroy "struct bridge"s, "struct port"s, and "struct
400 * iface"s according to 'ovs_cfg', with only very minimal configuration
403 * This is mostly an update to bridge data structures. Very little is
404 * pushed down to ofproto or lower layers. */
405 add_del_bridges(ovs_cfg);
406 splinter_vlans = collect_splinter_vlans(ovs_cfg);
407 HMAP_FOR_EACH (br, node, &all_bridges) {
408 bridge_add_del_ports(br, splinter_vlans);
410 free(splinter_vlans);
412 /* Delete all datapaths and datapath ports that are no longer configured.
414 * The kernel will reject any attempt to add a given port to a datapath if
415 * that port already belongs to a different datapath, so we must do all
416 * port deletions before any port additions. A datapath always has a
417 * "local port" so we must delete not-configured datapaths too. */
418 bridge_del_ofprotos();
419 HMAP_FOR_EACH (br, node, &all_bridges) {
421 bridge_del_ofproto_ports(br);
425 /* Create datapaths and datapath ports that are missing.
427 * After this is done, we have our final set of bridges, ports, and
428 * interfaces. Every "struct bridge" has an ofproto, every "struct port"
429 * has at least one iface, every "struct iface" has a valid ofp_port and
431 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
432 if (!br->ofproto && !bridge_add_ofprotos(br)) {
436 HMAP_FOR_EACH (br, node, &all_bridges) {
437 bridge_refresh_ofp_port(br);
438 bridge_add_ofproto_ports(br);
441 /* Complete the configuration. */
442 sflow_bridge_number = 0;
443 collect_in_band_managers(ovs_cfg, &managers, &n_managers);
444 HMAP_FOR_EACH (br, node, &all_bridges) {
447 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
450 port_configure(port);
452 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
453 iface_configure_cfm(iface);
454 iface_configure_qos(iface, port->cfg->qos);
455 iface_set_mac(iface);
458 bridge_configure_mirrors(br);
459 bridge_configure_datapath_id(br);
460 bridge_configure_flow_eviction_threshold(br);
461 bridge_configure_forward_bpdu(br);
462 bridge_configure_remotes(br, managers, n_managers);
463 bridge_configure_netflow(br);
464 bridge_configure_sflow(br, &sflow_bridge_number);
465 bridge_configure_stp(br);
469 /* ovs-vswitchd has completed initialization, so allow the process that
470 * forked us to exit successfully. */
471 daemonize_complete();
474 /* Iterate over all ofprotos and delete any of them that do not have a
475 * configured bridge or that are the wrong type. */
477 bridge_del_ofprotos(void)
485 ofproto_enumerate_types(&types);
486 SSET_FOR_EACH (type, &types) {
489 ofproto_enumerate_names(type, &names);
490 SSET_FOR_EACH (name, &names) {
491 struct bridge *br = bridge_lookup(name);
492 if (!br || strcmp(type, br->type)) {
493 ofproto_delete(name, type);
497 sset_destroy(&names);
498 sset_destroy(&types);
502 bridge_add_ofprotos(struct bridge *br)
504 int error = ofproto_create(br->name, br->type, &br->ofproto);
506 VLOG_ERR("failed to create bridge %s: %s", br->name, strerror(error));
513 port_configure(struct port *port)
515 const struct ovsrec_port *cfg = port->cfg;
516 struct bond_settings bond_settings;
517 struct lacp_settings lacp_settings;
518 struct ofproto_bundle_settings s;
521 if (cfg->vlan_mode && !strcmp(cfg->vlan_mode, "splinter")) {
522 configure_splinter_port(port);
531 s.slaves = xmalloc(list_size(&port->ifaces) * sizeof *s.slaves);
532 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
533 s.slaves[s.n_slaves++] = iface->ofp_port;
539 if (list_is_short(&port->ifaces)) {
540 if (*cfg->tag >= 0 && *cfg->tag <= 4095) {
544 /* It's possible that bonded, VLAN-tagged ports make sense. Maybe
545 * they even work as-is. But they have not been tested. */
546 VLOG_WARN("port %s: VLAN tags not supported on bonded ports",
551 /* Get VLAN trunks. */
554 s.trunks = vlan_bitmap_from_array(cfg->trunks, cfg->n_trunks);
558 if (cfg->vlan_mode) {
559 if (!strcmp(cfg->vlan_mode, "access")) {
560 s.vlan_mode = PORT_VLAN_ACCESS;
561 } else if (!strcmp(cfg->vlan_mode, "trunk")) {
562 s.vlan_mode = PORT_VLAN_TRUNK;
563 } else if (!strcmp(cfg->vlan_mode, "native-tagged")) {
564 s.vlan_mode = PORT_VLAN_NATIVE_TAGGED;
565 } else if (!strcmp(cfg->vlan_mode, "native-untagged")) {
566 s.vlan_mode = PORT_VLAN_NATIVE_UNTAGGED;
568 /* This "can't happen" because ovsdb-server should prevent it. */
569 VLOG_ERR("unknown VLAN mode %s", cfg->vlan_mode);
570 s.vlan_mode = PORT_VLAN_TRUNK;
574 s.vlan_mode = PORT_VLAN_ACCESS;
576 VLOG_ERR("port %s: ignoring trunks in favor of implicit vlan",
580 s.vlan_mode = PORT_VLAN_TRUNK;
583 s.use_priority_tags = !strcmp("true", get_port_other_config(
584 cfg, "priority-tags", ""));
586 /* Get LACP settings. */
587 s.lacp = port_configure_lacp(port, &lacp_settings);
591 s.lacp_slaves = xmalloc(s.n_slaves * sizeof *s.lacp_slaves);
592 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
593 iface_configure_lacp(iface, &s.lacp_slaves[i++]);
596 s.lacp_slaves = NULL;
599 /* Get bond settings. */
600 if (s.n_slaves > 1) {
601 s.bond = &bond_settings;
602 s.bond_stable_ids = xmalloc(s.n_slaves * sizeof *s.bond_stable_ids);
603 port_configure_bond(port, &bond_settings, s.bond_stable_ids);
606 s.bond_stable_ids = NULL;
608 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
609 netdev_set_miimon_interval(iface->netdev, 0);
614 ofproto_bundle_register(port->bridge->ofproto, port, &s);
620 free(s.bond_stable_ids);
623 /* Pick local port hardware address and datapath ID for 'br'. */
625 bridge_configure_datapath_id(struct bridge *br)
627 uint8_t ea[ETH_ADDR_LEN];
629 struct iface *local_iface;
630 struct iface *hw_addr_iface;
633 bridge_pick_local_hw_addr(br, ea, &hw_addr_iface);
634 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
636 int error = netdev_set_etheraddr(local_iface->netdev, ea);
638 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
639 VLOG_ERR_RL(&rl, "bridge %s: failed to set bridge "
640 "Ethernet address: %s",
641 br->name, strerror(error));
644 memcpy(br->ea, ea, ETH_ADDR_LEN);
646 dpid = bridge_pick_datapath_id(br, ea, hw_addr_iface);
647 ofproto_set_datapath_id(br->ofproto, dpid);
649 dpid_string = xasprintf("%016"PRIx64, dpid);
650 ovsrec_bridge_set_datapath_id(br->cfg, dpid_string);
654 /* Set NetFlow configuration on 'br'. */
656 bridge_configure_netflow(struct bridge *br)
658 struct ovsrec_netflow *cfg = br->cfg->netflow;
659 struct netflow_options opts;
662 ofproto_set_netflow(br->ofproto, NULL);
666 memset(&opts, 0, sizeof opts);
668 /* Get default NetFlow configuration from datapath.
669 * Apply overrides from 'cfg'. */
670 ofproto_get_netflow_ids(br->ofproto, &opts.engine_type, &opts.engine_id);
671 if (cfg->engine_type) {
672 opts.engine_type = *cfg->engine_type;
674 if (cfg->engine_id) {
675 opts.engine_id = *cfg->engine_id;
678 /* Configure active timeout interval. */
679 opts.active_timeout = cfg->active_timeout;
680 if (!opts.active_timeout) {
681 opts.active_timeout = -1;
682 } else if (opts.active_timeout < 0) {
683 VLOG_WARN("bridge %s: active timeout interval set to negative "
684 "value, using default instead (%d seconds)", br->name,
685 NF_ACTIVE_TIMEOUT_DEFAULT);
686 opts.active_timeout = -1;
689 /* Add engine ID to interface number to disambiguate bridgs? */
690 opts.add_id_to_iface = cfg->add_id_to_interface;
691 if (opts.add_id_to_iface) {
692 if (opts.engine_id > 0x7f) {
693 VLOG_WARN("bridge %s: NetFlow port mangling may conflict with "
694 "another vswitch, choose an engine id less than 128",
697 if (hmap_count(&br->ports) > 508) {
698 VLOG_WARN("bridge %s: NetFlow port mangling will conflict with "
699 "another port when more than 508 ports are used",
705 sset_init(&opts.collectors);
706 sset_add_array(&opts.collectors, cfg->targets, cfg->n_targets);
709 if (ofproto_set_netflow(br->ofproto, &opts)) {
710 VLOG_ERR("bridge %s: problem setting netflow collectors", br->name);
712 sset_destroy(&opts.collectors);
715 /* Set sFlow configuration on 'br'. */
717 bridge_configure_sflow(struct bridge *br, int *sflow_bridge_number)
719 const struct ovsrec_sflow *cfg = br->cfg->sflow;
720 struct ovsrec_controller **controllers;
721 struct ofproto_sflow_options oso;
722 size_t n_controllers;
726 ofproto_set_sflow(br->ofproto, NULL);
730 memset(&oso, 0, sizeof oso);
732 sset_init(&oso.targets);
733 sset_add_array(&oso.targets, cfg->targets, cfg->n_targets);
735 oso.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
737 oso.sampling_rate = *cfg->sampling;
740 oso.polling_interval = SFL_DEFAULT_POLLING_INTERVAL;
742 oso.polling_interval = *cfg->polling;
745 oso.header_len = SFL_DEFAULT_HEADER_SIZE;
747 oso.header_len = *cfg->header;
750 oso.sub_id = (*sflow_bridge_number)++;
751 oso.agent_device = cfg->agent;
753 oso.control_ip = NULL;
754 n_controllers = bridge_get_controllers(br, &controllers);
755 for (i = 0; i < n_controllers; i++) {
756 if (controllers[i]->local_ip) {
757 oso.control_ip = controllers[i]->local_ip;
761 ofproto_set_sflow(br->ofproto, &oso);
763 sset_destroy(&oso.targets);
767 port_configure_stp(const struct ofproto *ofproto, struct port *port,
768 struct ofproto_port_stp_settings *port_s,
769 int *port_num_counter, unsigned long *port_num_bitmap)
771 const char *config_str;
774 config_str = get_port_other_config(port->cfg, "stp-enable", NULL);
775 if (config_str && !strcmp(config_str, "false")) {
776 port_s->enable = false;
779 port_s->enable = true;
782 /* STP over bonds is not supported. */
783 if (!list_is_singleton(&port->ifaces)) {
784 VLOG_ERR("port %s: cannot enable STP on bonds, disabling",
786 port_s->enable = false;
790 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
792 /* Internal ports shouldn't participate in spanning tree, so
794 if (!strcmp(iface->type, "internal")) {
795 VLOG_DBG("port %s: disable STP on internal ports", port->name);
796 port_s->enable = false;
800 /* STP on mirror output ports is not supported. */
801 if (ofproto_is_mirror_output_bundle(ofproto, port)) {
802 VLOG_DBG("port %s: disable STP on mirror ports", port->name);
803 port_s->enable = false;
807 config_str = get_port_other_config(port->cfg, "stp-port-num", NULL);
809 unsigned long int port_num = strtoul(config_str, NULL, 0);
810 int port_idx = port_num - 1;
812 if (port_num < 1 || port_num > STP_MAX_PORTS) {
813 VLOG_ERR("port %s: invalid stp-port-num", port->name);
814 port_s->enable = false;
818 if (bitmap_is_set(port_num_bitmap, port_idx)) {
819 VLOG_ERR("port %s: duplicate stp-port-num %lu, disabling",
820 port->name, port_num);
821 port_s->enable = false;
824 bitmap_set1(port_num_bitmap, port_idx);
825 port_s->port_num = port_idx;
827 if (*port_num_counter > STP_MAX_PORTS) {
828 VLOG_ERR("port %s: too many STP ports, disabling", port->name);
829 port_s->enable = false;
833 port_s->port_num = (*port_num_counter)++;
836 config_str = get_port_other_config(port->cfg, "stp-path-cost", NULL);
838 port_s->path_cost = strtoul(config_str, NULL, 10);
842 if (netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL)) {
843 /* Couldn't get speed, so assume 100Mb/s. */
844 port_s->path_cost = 19;
848 mbps = netdev_features_to_bps(current) / 1000000;
849 port_s->path_cost = stp_convert_speed_to_cost(mbps);
853 config_str = get_port_other_config(port->cfg, "stp-port-priority", NULL);
855 port_s->priority = strtoul(config_str, NULL, 0);
857 port_s->priority = STP_DEFAULT_PORT_PRIORITY;
861 /* Set spanning tree configuration on 'br'. */
863 bridge_configure_stp(struct bridge *br)
865 if (!br->cfg->stp_enable) {
866 ofproto_set_stp(br->ofproto, NULL);
868 struct ofproto_stp_settings br_s;
869 const char *config_str;
871 int port_num_counter;
872 unsigned long *port_num_bitmap;
874 config_str = bridge_get_other_config(br->cfg, "stp-system-id");
876 uint8_t ea[ETH_ADDR_LEN];
878 if (eth_addr_from_string(config_str, ea)) {
879 br_s.system_id = eth_addr_to_uint64(ea);
881 br_s.system_id = eth_addr_to_uint64(br->ea);
882 VLOG_ERR("bridge %s: invalid stp-system-id, defaulting "
883 "to "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(br->ea));
886 br_s.system_id = eth_addr_to_uint64(br->ea);
889 config_str = bridge_get_other_config(br->cfg, "stp-priority");
891 br_s.priority = strtoul(config_str, NULL, 0);
893 br_s.priority = STP_DEFAULT_BRIDGE_PRIORITY;
896 config_str = bridge_get_other_config(br->cfg, "stp-hello-time");
898 br_s.hello_time = strtoul(config_str, NULL, 10) * 1000;
900 br_s.hello_time = STP_DEFAULT_HELLO_TIME;
903 config_str = bridge_get_other_config(br->cfg, "stp-max-age");
905 br_s.max_age = strtoul(config_str, NULL, 10) * 1000;
907 br_s.max_age = STP_DEFAULT_MAX_AGE;
910 config_str = bridge_get_other_config(br->cfg, "stp-forward-delay");
912 br_s.fwd_delay = strtoul(config_str, NULL, 10) * 1000;
914 br_s.fwd_delay = STP_DEFAULT_FWD_DELAY;
917 /* Configure STP on the bridge. */
918 if (ofproto_set_stp(br->ofproto, &br_s)) {
919 VLOG_ERR("bridge %s: could not enable STP", br->name);
923 /* Users must either set the port number with the "stp-port-num"
924 * configuration on all ports or none. If manual configuration
925 * is not done, then we allocate them sequentially. */
926 port_num_counter = 0;
927 port_num_bitmap = bitmap_allocate(STP_MAX_PORTS);
928 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
929 struct ofproto_port_stp_settings port_s;
932 port_configure_stp(br->ofproto, port, &port_s,
933 &port_num_counter, port_num_bitmap);
935 /* As bonds are not supported, just apply configuration to
937 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
938 if (ofproto_port_set_stp(br->ofproto, iface->ofp_port,
940 VLOG_ERR("port %s: could not enable STP", port->name);
946 if (bitmap_scan(port_num_bitmap, 0, STP_MAX_PORTS) != STP_MAX_PORTS
947 && port_num_counter) {
948 VLOG_ERR("bridge %s: must manually configure all STP port "
949 "IDs or none, disabling", br->name);
950 ofproto_set_stp(br->ofproto, NULL);
952 bitmap_free(port_num_bitmap);
957 bridge_has_bond_fake_iface(const struct bridge *br, const char *name)
959 const struct port *port = port_lookup(br, name);
960 return port && port_is_bond_fake_iface(port);
964 port_is_bond_fake_iface(const struct port *port)
966 return port->cfg->bond_fake_iface && !list_is_short(&port->ifaces);
970 add_del_bridges(const struct ovsrec_open_vswitch *cfg)
972 struct bridge *br, *next;
976 /* Collect new bridges' names and types. */
978 for (i = 0; i < cfg->n_bridges; i++) {
979 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
980 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
982 if (strchr(br_cfg->name, '/')) {
983 /* Prevent remote ovsdb-server users from accessing arbitrary
984 * directories, e.g. consider a bridge named "../../../etc/". */
985 VLOG_WARN_RL(&rl, "ignoring bridge with invalid name \"%s\"",
987 } else if (!shash_add_once(&new_br, br_cfg->name, br_cfg)) {
988 VLOG_WARN_RL(&rl, "bridge %s specified twice", br_cfg->name);
992 /* Get rid of deleted bridges or those whose types have changed.
993 * Update 'cfg' of bridges that still exist. */
994 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
995 br->cfg = shash_find_data(&new_br, br->name);
996 if (!br->cfg || strcmp(br->type, ofproto_normalize_type(
997 br->cfg->datapath_type))) {
1002 /* Add new bridges. */
1003 for (i = 0; i < cfg->n_bridges; i++) {
1004 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
1005 struct bridge *br = bridge_lookup(br_cfg->name);
1007 bridge_create(br_cfg);
1011 shash_destroy(&new_br);
1014 /* Delete each ofproto port on 'br' that doesn't have a corresponding "struct
1017 * The kernel will reject any attempt to add a given port to a datapath if that
1018 * port already belongs to a different datapath, so we must do all port
1019 * deletions before any port additions. */
1021 bridge_del_ofproto_ports(struct bridge *br)
1023 struct ofproto_port_dump dump;
1024 struct ofproto_port ofproto_port;
1026 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
1027 const char *name = ofproto_port.name;
1028 struct iface *iface;
1032 /* Ignore the local port. We can't change it anyhow. */
1033 if (!strcmp(name, br->name)) {
1037 /* Get the type that 'ofproto_port' should have (ordinarily the
1038 * type of its corresponding iface) or NULL if it should be
1040 iface = iface_lookup(br, name);
1041 type = (iface ? iface->type
1042 : bridge_has_bond_fake_iface(br, name) ? "internal"
1045 /* If it's the wrong type then delete the ofproto port. */
1047 && !strcmp(ofproto_port.type, type)
1048 && (!iface || !iface->netdev
1049 || !strcmp(netdev_get_type(iface->netdev), type))) {
1052 error = ofproto_port_del(br->ofproto, ofproto_port.ofp_port);
1054 VLOG_WARN("bridge %s: failed to remove %s interface (%s)",
1055 br->name, name, strerror(error));
1058 netdev_close(iface->netdev);
1059 iface->netdev = NULL;
1065 iface_set_ofp_port(struct iface *iface, int ofp_port)
1067 struct bridge *br = iface->port->bridge;
1069 assert(iface->ofp_port < 0 && ofp_port >= 0);
1070 iface->ofp_port = ofp_port;
1071 hmap_insert(&br->ifaces, &iface->ofp_port_node, hash_int(ofp_port, 0));
1072 iface_set_ofport(iface->cfg, ofp_port);
1076 bridge_refresh_ofp_port(struct bridge *br)
1078 struct ofproto_port_dump dump;
1079 struct ofproto_port ofproto_port;
1082 /* Clear all the "ofp_port"es. */
1083 hmap_clear(&br->ifaces);
1084 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1085 struct iface *iface;
1087 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1088 iface->ofp_port = -1;
1092 /* Obtain the correct "ofp_port"s from ofproto. */
1093 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
1094 struct iface *iface = iface_lookup(br, ofproto_port.name);
1096 if (iface->ofp_port >= 0) {
1097 VLOG_WARN("bridge %s: interface %s reported twice",
1098 br->name, ofproto_port.name);
1099 } else if (iface_from_ofp_port(br, ofproto_port.ofp_port)) {
1100 VLOG_WARN("bridge %s: interface %"PRIu16" reported twice",
1101 br->name, ofproto_port.ofp_port);
1103 iface_set_ofp_port(iface, ofproto_port.ofp_port);
1109 /* Add an ofproto port for any "struct iface" that doesn't have one.
1110 * Delete any "struct iface" for which this fails.
1111 * Delete any "struct port" that thereby ends up with no ifaces. */
1113 bridge_add_ofproto_ports(struct bridge *br)
1115 struct port *port, *next_port;
1117 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
1118 struct iface *iface, *next_iface;
1119 struct ofproto_port ofproto_port;
1121 LIST_FOR_EACH_SAFE (iface, next_iface, port_elem, &port->ifaces) {
1124 /* Open the netdev. */
1125 if (!iface->netdev) {
1126 error = netdev_open(iface->name, iface->type, &iface->netdev);
1128 VLOG_WARN("could not open network device %s (%s)",
1129 iface->name, strerror(error));
1133 && port->cfg->vlan_mode
1134 && !strcmp(port->cfg->vlan_mode, "splinter")) {
1135 netdev_turn_flags_on(iface->netdev, NETDEV_UP, true);
1141 /* Configure the netdev. */
1142 if (iface->netdev) {
1146 shash_from_ovs_idl_map(iface->cfg->key_options,
1147 iface->cfg->value_options,
1148 iface->cfg->n_options, &args);
1149 error = netdev_set_config(iface->netdev, &args);
1150 shash_destroy(&args);
1153 VLOG_WARN("could not configure network device %s (%s)",
1154 iface->name, strerror(error));
1155 netdev_close(iface->netdev);
1156 iface->netdev = NULL;
1160 /* Add the port, if necessary. */
1161 if (iface->netdev && iface->ofp_port < 0) {
1165 error = ofproto_port_add(br->ofproto, iface->netdev,
1168 iface_set_ofp_port(iface, ofp_port);
1170 netdev_close(iface->netdev);
1171 iface->netdev = NULL;
1175 /* Populate stats columns in new Interface rows. */
1176 if (iface->netdev && !iface->cfg->mtu) {
1177 iface_refresh_stats(iface);
1178 iface_refresh_status(iface);
1181 /* Delete the iface if we failed. */
1182 if (iface->netdev && iface->ofp_port >= 0) {
1183 VLOG_DBG("bridge %s: interface %s is on port %d",
1184 br->name, iface->name, iface->ofp_port);
1186 if (iface->netdev) {
1187 VLOG_ERR("bridge %s: missing %s interface, dropping",
1188 br->name, iface->name);
1190 /* We already reported a related error, don't bother
1191 * duplicating it. */
1193 iface_clear_db_record(iface->cfg);
1194 iface_destroy(iface);
1197 if (list_is_empty(&port->ifaces)) {
1198 VLOG_WARN("%s port has no interfaces, dropping", port->name);
1203 /* Add bond fake iface if necessary. */
1204 if (port_is_bond_fake_iface(port)) {
1205 if (ofproto_port_query_by_name(br->ofproto, port->name,
1207 struct netdev *netdev;
1210 error = netdev_open(port->name, "internal", &netdev);
1212 ofproto_port_add(br->ofproto, netdev, NULL);
1213 netdev_close(netdev);
1215 VLOG_WARN("could not open network device %s (%s)",
1216 port->name, strerror(error));
1219 /* Already exists, nothing to do. */
1220 ofproto_port_destroy(&ofproto_port);
1227 get_ovsrec_key_value(char **keys, char **values, size_t n, const char *key)
1231 for (i = 0; i < n; i++) {
1232 if (!strcmp(keys[i], key)) {
1240 bridge_get_other_config(const struct ovsrec_bridge *br_cfg, const char *key)
1242 return get_ovsrec_key_value(br_cfg->key_other_config,
1243 br_cfg->value_other_config,
1244 br_cfg->n_other_config, key);
1247 /* Set Flow eviction threshold */
1249 bridge_configure_flow_eviction_threshold(struct bridge *br)
1251 const char *threshold_str;
1254 threshold_str = bridge_get_other_config(br->cfg, "flow-eviction-threshold");
1255 if (threshold_str) {
1256 threshold = strtoul(threshold_str, NULL, 10);
1258 threshold = OFPROTO_FLOW_EVICTON_THRESHOLD_DEFAULT;
1260 ofproto_set_flow_eviction_threshold(br->ofproto, threshold);
1263 /* Set forward BPDU option. */
1265 bridge_configure_forward_bpdu(struct bridge *br)
1267 const char *forward_bpdu_str;
1268 bool forward_bpdu = false;
1270 forward_bpdu_str = bridge_get_other_config(br->cfg, "forward-bpdu");
1271 if (forward_bpdu_str && !strcmp(forward_bpdu_str, "true")) {
1272 forward_bpdu = true;
1274 ofproto_set_forward_bpdu(br->ofproto, forward_bpdu);
1278 bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
1279 struct iface **hw_addr_iface)
1283 bool found_addr = false;
1286 *hw_addr_iface = NULL;
1288 /* Did the user request a particular MAC? */
1289 hwaddr = bridge_get_other_config(br->cfg, "hwaddr");
1290 if (hwaddr && eth_addr_from_string(hwaddr, ea)) {
1291 if (eth_addr_is_multicast(ea)) {
1292 VLOG_ERR("bridge %s: cannot set MAC address to multicast "
1293 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1294 } else if (eth_addr_is_zero(ea)) {
1295 VLOG_ERR("bridge %s: cannot set MAC address to zero", br->name);
1301 /* Otherwise choose the minimum non-local MAC address among all of the
1303 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1304 uint8_t iface_ea[ETH_ADDR_LEN];
1305 struct iface *candidate;
1306 struct iface *iface;
1308 /* Mirror output ports don't participate. */
1309 if (ofproto_is_mirror_output_bundle(br->ofproto, port)) {
1313 /* Choose the MAC address to represent the port. */
1315 if (port->cfg->mac && eth_addr_from_string(port->cfg->mac, iface_ea)) {
1316 /* Find the interface with this Ethernet address (if any) so that
1317 * we can provide the correct devname to the caller. */
1318 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1319 uint8_t candidate_ea[ETH_ADDR_LEN];
1320 if (!netdev_get_etheraddr(candidate->netdev, candidate_ea)
1321 && eth_addr_equals(iface_ea, candidate_ea)) {
1326 /* Choose the interface whose MAC address will represent the port.
1327 * The Linux kernel bonding code always chooses the MAC address of
1328 * the first slave added to a bond, and the Fedora networking
1329 * scripts always add slaves to a bond in alphabetical order, so
1330 * for compatibility we choose the interface with the name that is
1331 * first in alphabetical order. */
1332 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1333 if (!iface || strcmp(candidate->name, iface->name) < 0) {
1338 /* The local port doesn't count (since we're trying to choose its
1339 * MAC address anyway). */
1340 if (iface->ofp_port == OFPP_LOCAL) {
1345 error = netdev_get_etheraddr(iface->netdev, iface_ea);
1351 /* Compare against our current choice. */
1352 if (!eth_addr_is_multicast(iface_ea) &&
1353 !eth_addr_is_local(iface_ea) &&
1354 !eth_addr_is_reserved(iface_ea) &&
1355 !eth_addr_is_zero(iface_ea) &&
1356 (!found_addr || eth_addr_compare_3way(iface_ea, ea) < 0))
1358 memcpy(ea, iface_ea, ETH_ADDR_LEN);
1359 *hw_addr_iface = iface;
1364 VLOG_DBG("bridge %s: using bridge Ethernet address "ETH_ADDR_FMT,
1365 br->name, ETH_ADDR_ARGS(ea));
1367 memcpy(ea, br->default_ea, ETH_ADDR_LEN);
1368 *hw_addr_iface = NULL;
1369 VLOG_WARN("bridge %s: using default bridge Ethernet "
1370 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1374 /* Choose and returns the datapath ID for bridge 'br' given that the bridge
1375 * Ethernet address is 'bridge_ea'. If 'bridge_ea' is the Ethernet address of
1376 * an interface on 'br', then that interface must be passed in as
1377 * 'hw_addr_iface'; if 'bridge_ea' was derived some other way, then
1378 * 'hw_addr_iface' must be passed in as a null pointer. */
1380 bridge_pick_datapath_id(struct bridge *br,
1381 const uint8_t bridge_ea[ETH_ADDR_LEN],
1382 struct iface *hw_addr_iface)
1385 * The procedure for choosing a bridge MAC address will, in the most
1386 * ordinary case, also choose a unique MAC that we can use as a datapath
1387 * ID. In some special cases, though, multiple bridges will end up with
1388 * the same MAC address. This is OK for the bridges, but it will confuse
1389 * the OpenFlow controller, because each datapath needs a unique datapath
1392 * Datapath IDs must be unique. It is also very desirable that they be
1393 * stable from one run to the next, so that policy set on a datapath
1396 const char *datapath_id;
1399 datapath_id = bridge_get_other_config(br->cfg, "datapath-id");
1400 if (datapath_id && dpid_from_string(datapath_id, &dpid)) {
1404 if (!hw_addr_iface) {
1406 * A purely internal bridge, that is, one that has no non-virtual
1407 * network devices on it at all, is difficult because it has no
1408 * natural unique identifier at all.
1410 * When the host is a XenServer, we handle this case by hashing the
1411 * host's UUID with the name of the bridge. Names of bridges are
1412 * persistent across XenServer reboots, although they can be reused if
1413 * an internal network is destroyed and then a new one is later
1414 * created, so this is fairly effective.
1416 * When the host is not a XenServer, we punt by using a random MAC
1417 * address on each run.
1419 const char *host_uuid = xenserver_get_host_uuid();
1421 char *combined = xasprintf("%s,%s", host_uuid, br->name);
1422 dpid = dpid_from_hash(combined, strlen(combined));
1428 return eth_addr_to_uint64(bridge_ea);
1432 dpid_from_hash(const void *data, size_t n)
1434 uint8_t hash[SHA1_DIGEST_SIZE];
1436 BUILD_ASSERT_DECL(sizeof hash >= ETH_ADDR_LEN);
1437 sha1_bytes(data, n, hash);
1438 eth_addr_mark_random(hash);
1439 return eth_addr_to_uint64(hash);
1443 iface_refresh_status(struct iface *iface)
1447 enum netdev_flags flags;
1454 if (iface_is_synthetic(iface)) {
1460 if (!netdev_get_status(iface->netdev, &sh)) {
1462 char **keys, **values;
1464 shash_to_ovs_idl_map(&sh, &keys, &values, &n);
1465 ovsrec_interface_set_status(iface->cfg, keys, values, n);
1470 ovsrec_interface_set_status(iface->cfg, NULL, NULL, 0);
1473 shash_destroy_free_data(&sh);
1475 error = netdev_get_flags(iface->netdev, &flags);
1477 ovsrec_interface_set_admin_state(iface->cfg, flags & NETDEV_UP ? "up" : "down");
1480 ovsrec_interface_set_admin_state(iface->cfg, NULL);
1483 error = netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
1485 ovsrec_interface_set_duplex(iface->cfg,
1486 netdev_features_is_full_duplex(current)
1488 /* warning: uint64_t -> int64_t conversion */
1489 bps = netdev_features_to_bps(current);
1490 ovsrec_interface_set_link_speed(iface->cfg, &bps, 1);
1493 ovsrec_interface_set_duplex(iface->cfg, NULL);
1494 ovsrec_interface_set_link_speed(iface->cfg, NULL, 0);
1497 error = netdev_get_mtu(iface->netdev, &mtu);
1500 ovsrec_interface_set_mtu(iface->cfg, &mtu_64, 1);
1503 ovsrec_interface_set_mtu(iface->cfg, NULL, 0);
1507 /* Writes 'iface''s CFM statistics to the database. */
1509 iface_refresh_cfm_stats(struct iface *iface)
1511 const struct ovsrec_interface *cfg = iface->cfg;
1513 const uint64_t *rmps;
1516 if (iface_is_synthetic(iface)) {
1520 fault = ofproto_port_get_cfm_fault(iface->port->bridge->ofproto,
1523 bool fault_bool = fault;
1524 ovsrec_interface_set_cfm_fault(cfg, &fault_bool, 1);
1526 ovsrec_interface_set_cfm_fault(cfg, NULL, 0);
1529 error = ofproto_port_get_cfm_remote_mpids(iface->port->bridge->ofproto,
1530 iface->ofp_port, &rmps, &n_rmps);
1532 ovsrec_interface_set_cfm_remote_mpids(cfg, (const int64_t *)rmps,
1535 ovsrec_interface_set_cfm_remote_mpids(cfg, NULL, 0);
1540 iface_refresh_stats(struct iface *iface)
1542 #define IFACE_STATS \
1543 IFACE_STAT(rx_packets, "rx_packets") \
1544 IFACE_STAT(tx_packets, "tx_packets") \
1545 IFACE_STAT(rx_bytes, "rx_bytes") \
1546 IFACE_STAT(tx_bytes, "tx_bytes") \
1547 IFACE_STAT(rx_dropped, "rx_dropped") \
1548 IFACE_STAT(tx_dropped, "tx_dropped") \
1549 IFACE_STAT(rx_errors, "rx_errors") \
1550 IFACE_STAT(tx_errors, "tx_errors") \
1551 IFACE_STAT(rx_frame_errors, "rx_frame_err") \
1552 IFACE_STAT(rx_over_errors, "rx_over_err") \
1553 IFACE_STAT(rx_crc_errors, "rx_crc_err") \
1554 IFACE_STAT(collisions, "collisions")
1556 #define IFACE_STAT(MEMBER, NAME) NAME,
1557 static char *keys[] = { IFACE_STATS };
1559 int64_t values[ARRAY_SIZE(keys)];
1562 struct netdev_stats stats;
1564 if (iface_is_synthetic(iface)) {
1568 /* Intentionally ignore return value, since errors will set 'stats' to
1569 * all-1s, and we will deal with that correctly below. */
1570 netdev_get_stats(iface->netdev, &stats);
1572 /* Copy statistics into values[] array. */
1574 #define IFACE_STAT(MEMBER, NAME) values[i++] = stats.MEMBER;
1577 assert(i == ARRAY_SIZE(keys));
1579 ovsrec_interface_set_statistics(iface->cfg, keys, values, ARRAY_SIZE(keys));
1584 br_refresh_stp_status(struct bridge *br)
1586 struct ofproto *ofproto = br->ofproto;
1587 struct ofproto_stp_status status;
1588 char *keys[3], *values[3];
1591 if (ofproto_get_stp_status(ofproto, &status)) {
1595 if (!status.enabled) {
1596 ovsrec_bridge_set_status(br->cfg, NULL, NULL, 0);
1600 keys[0] = "stp_bridge_id",
1601 values[0] = xasprintf(STP_ID_FMT, STP_ID_ARGS(status.bridge_id));
1602 keys[1] = "stp_designated_root",
1603 values[1] = xasprintf(STP_ID_FMT, STP_ID_ARGS(status.designated_root));
1604 keys[2] = "stp_root_path_cost",
1605 values[2] = xasprintf("%d", status.root_path_cost);
1607 ovsrec_bridge_set_status(br->cfg, keys, values, ARRAY_SIZE(values));
1609 for (i = 0; i < ARRAY_SIZE(values); i++) {
1615 port_refresh_stp_status(struct port *port)
1617 struct ofproto *ofproto = port->bridge->ofproto;
1618 struct iface *iface;
1619 struct ofproto_port_stp_status status;
1621 char *str_values[4];
1622 int64_t int_values[3];
1625 if (port_is_synthetic(port)) {
1629 /* STP doesn't currently support bonds. */
1630 if (!list_is_singleton(&port->ifaces)) {
1631 ovsrec_port_set_status(port->cfg, NULL, NULL, 0);
1635 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
1637 if (ofproto_port_get_stp_status(ofproto, iface->ofp_port, &status)) {
1641 if (!status.enabled) {
1642 ovsrec_port_set_status(port->cfg, NULL, NULL, 0);
1643 ovsrec_port_set_statistics(port->cfg, NULL, NULL, 0);
1647 /* Set Status column. */
1648 keys[0] = "stp_port_id";
1649 str_values[0] = xasprintf(STP_PORT_ID_FMT, status.port_id);
1650 keys[1] = "stp_state";
1651 str_values[1] = xstrdup(stp_state_name(status.state));
1652 keys[2] = "stp_sec_in_state";
1653 str_values[2] = xasprintf("%u", status.sec_in_state);
1654 keys[3] = "stp_role";
1655 str_values[3] = xstrdup(stp_role_name(status.role));
1657 ovsrec_port_set_status(port->cfg, keys, str_values,
1658 ARRAY_SIZE(str_values));
1660 for (i = 0; i < ARRAY_SIZE(str_values); i++) {
1661 free(str_values[i]);
1664 /* Set Statistics column. */
1665 keys[0] = "stp_tx_count";
1666 int_values[0] = status.tx_count;
1667 keys[1] = "stp_rx_count";
1668 int_values[1] = status.rx_count;
1669 keys[2] = "stp_error_count";
1670 int_values[2] = status.error_count;
1672 ovsrec_port_set_statistics(port->cfg, keys, int_values,
1673 ARRAY_SIZE(int_values));
1677 enable_system_stats(const struct ovsrec_open_vswitch *cfg)
1681 /* Use other-config:enable-system-stats by preference. */
1682 enable = get_ovsrec_key_value(cfg->key_other_config,
1683 cfg->value_other_config,
1684 cfg->n_other_config,
1685 "enable-statistics");
1687 return !strcmp(enable, "true");
1690 /* Disable by default. */
1695 refresh_system_stats(const struct ovsrec_open_vswitch *cfg)
1697 struct ovsdb_datum datum;
1701 if (enable_system_stats(cfg)) {
1702 get_system_stats(&stats);
1705 ovsdb_datum_from_shash(&datum, &stats);
1706 ovsdb_idl_txn_write(&cfg->header_, &ovsrec_open_vswitch_col_statistics,
1710 static inline const char *
1711 nx_role_to_str(enum nx_role role)
1716 case NX_ROLE_MASTER:
1721 return "*** INVALID ROLE ***";
1726 refresh_controller_status(void)
1730 const struct ovsrec_controller *cfg;
1734 /* Accumulate status for controllers on all bridges. */
1735 HMAP_FOR_EACH (br, node, &all_bridges) {
1736 ofproto_get_ofproto_controller_info(br->ofproto, &info);
1739 /* Update each controller in the database with current status. */
1740 OVSREC_CONTROLLER_FOR_EACH(cfg, idl) {
1741 struct ofproto_controller_info *cinfo =
1742 shash_find_data(&info, cfg->target);
1745 ovsrec_controller_set_is_connected(cfg, cinfo->is_connected);
1746 ovsrec_controller_set_role(cfg, nx_role_to_str(cinfo->role));
1747 ovsrec_controller_set_status(cfg, (char **) cinfo->pairs.keys,
1748 (char **) cinfo->pairs.values,
1751 ovsrec_controller_set_is_connected(cfg, false);
1752 ovsrec_controller_set_role(cfg, NULL);
1753 ovsrec_controller_set_status(cfg, NULL, NULL, 0);
1757 ofproto_free_ofproto_controller_info(&info);
1761 refresh_cfm_stats(void)
1763 static struct ovsdb_idl_txn *txn = NULL;
1768 txn = ovsdb_idl_txn_create(idl);
1770 HMAP_FOR_EACH (br, node, &all_bridges) {
1771 struct iface *iface;
1773 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
1774 iface_refresh_cfm_stats(iface);
1779 if (ovsdb_idl_txn_commit(txn) != TXN_INCOMPLETE) {
1780 ovsdb_idl_txn_destroy(txn);
1785 /* Performs periodic activity required by bridges that needs to be done with
1786 * the least possible latency.
1788 * It makes sense to call this function a couple of times per poll loop, to
1789 * provide a significant performance boost on some benchmarks with ofprotos
1790 * that use the ofproto-dpif implementation. */
1792 bridge_run_fast(void)
1796 HMAP_FOR_EACH (br, node, &all_bridges) {
1797 ofproto_run_fast(br->ofproto);
1804 const struct ovsrec_open_vswitch *cfg;
1806 bool vlan_splinters_changed;
1807 bool database_changed;
1810 /* (Re)configure if necessary. */
1811 database_changed = ovsdb_idl_run(idl);
1812 if (ovsdb_idl_is_lock_contended(idl)) {
1813 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
1814 struct bridge *br, *next_br;
1816 VLOG_ERR_RL(&rl, "another ovs-vswitchd process is running, "
1817 "disabling this process until it goes away");
1819 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
1823 } else if (!ovsdb_idl_has_lock(idl)) {
1826 cfg = ovsrec_open_vswitch_first(idl);
1828 /* Let each bridge do the work that it needs to do. */
1829 HMAP_FOR_EACH (br, node, &all_bridges) {
1830 ofproto_run(br->ofproto);
1833 /* Re-configure SSL. We do this on every trip through the main loop,
1834 * instead of just when the database changes, because the contents of the
1835 * key and certificate files can change without the database changing.
1837 * We do this before bridge_reconfigure() because that function might
1838 * initiate SSL connections and thus requires SSL to be configured. */
1839 if (cfg && cfg->ssl) {
1840 const struct ovsrec_ssl *ssl = cfg->ssl;
1842 stream_ssl_set_key_and_cert(ssl->private_key, ssl->certificate);
1843 stream_ssl_set_ca_cert_file(ssl->ca_cert, ssl->bootstrap_ca_cert);
1846 /* If VLAN splinters are in use, then we need to reconfigure if VLAN usage
1848 vlan_splinters_changed = false;
1849 if (vlan_splinters_enabled_anywhere) {
1850 HMAP_FOR_EACH (br, node, &all_bridges) {
1851 if (ofproto_has_vlan_usage_changed(br->ofproto)) {
1852 vlan_splinters_changed = true;
1858 if (database_changed || vlan_splinters_changed) {
1860 struct ovsdb_idl_txn *txn = ovsdb_idl_txn_create(idl);
1862 bridge_reconfigure(cfg);
1864 ovsrec_open_vswitch_set_cur_cfg(cfg, cfg->next_cfg);
1865 ovsdb_idl_txn_commit(txn);
1866 ovsdb_idl_txn_destroy(txn); /* XXX */
1868 /* We still need to reconfigure to avoid dangling pointers to
1869 * now-destroyed ovsrec structures inside bridge data. */
1870 static const struct ovsrec_open_vswitch null_cfg;
1872 bridge_reconfigure(&null_cfg);
1876 /* Refresh system and interface stats if necessary. */
1877 if (time_msec() >= stats_timer) {
1879 struct ovsdb_idl_txn *txn;
1881 txn = ovsdb_idl_txn_create(idl);
1882 HMAP_FOR_EACH (br, node, &all_bridges) {
1886 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1887 struct iface *iface;
1889 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1890 iface_refresh_stats(iface);
1891 iface_refresh_status(iface);
1895 HMAP_FOR_EACH (m, hmap_node, &br->mirrors) {
1896 mirror_refresh_stats(m);
1900 refresh_system_stats(cfg);
1901 refresh_controller_status();
1902 ovsdb_idl_txn_commit(txn);
1903 ovsdb_idl_txn_destroy(txn); /* XXX */
1906 stats_timer = time_msec() + STATS_INTERVAL;
1909 if (time_msec() >= db_limiter) {
1910 struct ovsdb_idl_txn *txn;
1912 txn = ovsdb_idl_txn_create(idl);
1913 HMAP_FOR_EACH (br, node, &all_bridges) {
1914 struct iface *iface;
1917 br_refresh_stp_status(br);
1919 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1920 port_refresh_stp_status(port);
1923 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
1924 const char *link_state;
1925 int64_t link_resets;
1928 if (iface_is_synthetic(iface)) {
1932 current = ofproto_port_is_lacp_current(br->ofproto,
1936 ovsrec_interface_set_lacp_current(iface->cfg, &bl, 1);
1938 ovsrec_interface_set_lacp_current(iface->cfg, NULL, 0);
1941 link_state = netdev_get_carrier(iface->netdev) ? "up" : "down";
1942 ovsrec_interface_set_link_state(iface->cfg, link_state);
1944 link_resets = netdev_get_carrier_resets(iface->netdev);
1945 ovsrec_interface_set_link_resets(iface->cfg, &link_resets, 1);
1949 if (ovsdb_idl_txn_commit(txn) != TXN_UNCHANGED) {
1950 db_limiter = time_msec() + DB_LIMIT_INTERVAL;
1952 ovsdb_idl_txn_destroy(txn);
1955 refresh_cfm_stats();
1961 ovsdb_idl_wait(idl);
1962 if (!hmap_is_empty(&all_bridges)) {
1965 HMAP_FOR_EACH (br, node, &all_bridges) {
1966 ofproto_wait(br->ofproto);
1968 poll_timer_wait_until(stats_timer);
1970 if (db_limiter > time_msec()) {
1971 poll_timer_wait_until(db_limiter);
1976 /* QoS unixctl user interface functions. */
1978 struct qos_unixctl_show_cbdata {
1980 struct iface *iface;
1984 qos_unixctl_show_cb(unsigned int queue_id,
1985 const struct shash *details,
1988 struct qos_unixctl_show_cbdata *data = aux;
1989 struct ds *ds = data->ds;
1990 struct iface *iface = data->iface;
1991 struct netdev_queue_stats stats;
1992 struct shash_node *node;
1995 ds_put_cstr(ds, "\n");
1997 ds_put_format(ds, "Queue %u:\n", queue_id);
1999 ds_put_cstr(ds, "Default:\n");
2002 SHASH_FOR_EACH (node, details) {
2003 ds_put_format(ds, "\t%s: %s\n", node->name, (char *)node->data);
2006 error = netdev_get_queue_stats(iface->netdev, queue_id, &stats);
2008 if (stats.tx_packets != UINT64_MAX) {
2009 ds_put_format(ds, "\ttx_packets: %"PRIu64"\n", stats.tx_packets);
2012 if (stats.tx_bytes != UINT64_MAX) {
2013 ds_put_format(ds, "\ttx_bytes: %"PRIu64"\n", stats.tx_bytes);
2016 if (stats.tx_errors != UINT64_MAX) {
2017 ds_put_format(ds, "\ttx_errors: %"PRIu64"\n", stats.tx_errors);
2020 ds_put_format(ds, "\tFailed to get statistics for queue %u: %s",
2021 queue_id, strerror(error));
2026 qos_unixctl_show(struct unixctl_conn *conn,
2027 const char *args, void *aux OVS_UNUSED)
2029 struct ds ds = DS_EMPTY_INITIALIZER;
2030 struct shash sh = SHASH_INITIALIZER(&sh);
2031 struct iface *iface;
2033 struct shash_node *node;
2034 struct qos_unixctl_show_cbdata data;
2037 iface = iface_find(args);
2039 unixctl_command_reply(conn, 501, "no such interface");
2043 netdev_get_qos(iface->netdev, &type, &sh);
2045 if (*type != '\0') {
2046 ds_put_format(&ds, "QoS: %s %s\n", iface->name, type);
2048 SHASH_FOR_EACH (node, &sh) {
2049 ds_put_format(&ds, "%s: %s\n", node->name, (char *)node->data);
2054 error = netdev_dump_queues(iface->netdev, qos_unixctl_show_cb, &data);
2057 ds_put_format(&ds, "failed to dump queues: %s", strerror(error));
2059 unixctl_command_reply(conn, 200, ds_cstr(&ds));
2061 ds_put_format(&ds, "QoS not configured on %s\n", iface->name);
2062 unixctl_command_reply(conn, 501, ds_cstr(&ds));
2065 shash_destroy_free_data(&sh);
2069 /* Bridge reconfiguration functions. */
2071 bridge_create(const struct ovsrec_bridge *br_cfg)
2075 assert(!bridge_lookup(br_cfg->name));
2076 br = xzalloc(sizeof *br);
2078 br->name = xstrdup(br_cfg->name);
2079 br->type = xstrdup(ofproto_normalize_type(br_cfg->datapath_type));
2082 /* Derive the default Ethernet address from the bridge's UUID. This should
2083 * be unique and it will be stable between ovs-vswitchd runs. */
2084 memcpy(br->default_ea, &br_cfg->header_.uuid, ETH_ADDR_LEN);
2085 eth_addr_mark_random(br->default_ea);
2087 hmap_init(&br->ports);
2088 hmap_init(&br->ifaces);
2089 hmap_init(&br->iface_by_name);
2090 hmap_init(&br->mirrors);
2092 hmap_insert(&all_bridges, &br->node, hash_string(br->name, 0));
2096 bridge_destroy(struct bridge *br)
2099 struct mirror *mirror, *next_mirror;
2100 struct port *port, *next_port;
2102 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
2105 HMAP_FOR_EACH_SAFE (mirror, next_mirror, hmap_node, &br->mirrors) {
2106 mirror_destroy(mirror);
2108 hmap_remove(&all_bridges, &br->node);
2109 ofproto_destroy(br->ofproto);
2110 hmap_destroy(&br->ifaces);
2111 hmap_destroy(&br->ports);
2112 hmap_destroy(&br->iface_by_name);
2113 hmap_destroy(&br->mirrors);
2120 static struct bridge *
2121 bridge_lookup(const char *name)
2125 HMAP_FOR_EACH_WITH_HASH (br, node, hash_string(name, 0), &all_bridges) {
2126 if (!strcmp(br->name, name)) {
2133 /* Handle requests for a listing of all flows known by the OpenFlow
2134 * stack, including those normally hidden. */
2136 bridge_unixctl_dump_flows(struct unixctl_conn *conn,
2137 const char *args, void *aux OVS_UNUSED)
2142 br = bridge_lookup(args);
2144 unixctl_command_reply(conn, 501, "Unknown bridge");
2149 ofproto_get_all_flows(br->ofproto, &results);
2151 unixctl_command_reply(conn, 200, ds_cstr(&results));
2152 ds_destroy(&results);
2155 /* "bridge/reconnect [BRIDGE]": makes BRIDGE drop all of its controller
2156 * connections and reconnect. If BRIDGE is not specified, then all bridges
2157 * drop their controller connections and reconnect. */
2159 bridge_unixctl_reconnect(struct unixctl_conn *conn,
2160 const char *args, void *aux OVS_UNUSED)
2163 if (args[0] != '\0') {
2164 br = bridge_lookup(args);
2166 unixctl_command_reply(conn, 501, "Unknown bridge");
2169 ofproto_reconnect_controllers(br->ofproto);
2171 HMAP_FOR_EACH (br, node, &all_bridges) {
2172 ofproto_reconnect_controllers(br->ofproto);
2175 unixctl_command_reply(conn, 200, NULL);
2179 bridge_get_controllers(const struct bridge *br,
2180 struct ovsrec_controller ***controllersp)
2182 struct ovsrec_controller **controllers;
2183 size_t n_controllers;
2185 controllers = br->cfg->controller;
2186 n_controllers = br->cfg->n_controller;
2188 if (n_controllers == 1 && !strcmp(controllers[0]->target, "none")) {
2194 *controllersp = controllers;
2196 return n_controllers;
2199 /* Adds and deletes "struct port"s and "struct iface"s under 'br' to match
2200 * those configured in 'br->cfg'. */
2202 bridge_add_del_ports(struct bridge *br,
2203 const unsigned long int *splinter_vlans)
2205 struct port *port, *next;
2206 struct shash_node *node;
2207 struct shash new_ports;
2210 /* Collect new ports. */
2211 shash_init(&new_ports);
2212 for (i = 0; i < br->cfg->n_ports; i++) {
2213 const char *name = br->cfg->ports[i]->name;
2214 if (!shash_add_once(&new_ports, name, br->cfg->ports[i])) {
2215 VLOG_WARN("bridge %s: %s specified twice as bridge port",
2219 if (bridge_get_controllers(br, NULL)
2220 && !shash_find(&new_ports, br->name)) {
2221 VLOG_WARN("bridge %s: no port named %s, synthesizing one",
2222 br->name, br->name);
2224 br->synth_local_port.interfaces = &br->synth_local_ifacep;
2225 br->synth_local_port.n_interfaces = 1;
2226 br->synth_local_port.name = br->name;
2228 br->synth_local_iface.name = br->name;
2229 br->synth_local_iface.type = "internal";
2231 br->synth_local_ifacep = &br->synth_local_iface;
2233 shash_add(&new_ports, br->name, &br->synth_local_port);
2236 if (splinter_vlans) {
2237 add_vlan_splinter_ports(br, splinter_vlans, &new_ports);
2240 /* Get rid of deleted ports.
2241 * Get rid of deleted interfaces on ports that still exist. */
2242 HMAP_FOR_EACH_SAFE (port, next, hmap_node, &br->ports) {
2243 port->cfg = shash_find_data(&new_ports, port->name);
2247 port_del_ifaces(port);
2251 /* Create new ports.
2252 * Add new interfaces to existing ports. */
2253 SHASH_FOR_EACH (node, &new_ports) {
2254 struct port *port = port_lookup(br, node->name);
2256 struct ovsrec_port *cfg = node->data;
2257 port = port_create(br, cfg);
2259 port_add_ifaces(port);
2260 if (list_is_empty(&port->ifaces)) {
2261 VLOG_WARN("bridge %s: port %s has no interfaces, dropping",
2262 br->name, port->name);
2266 shash_destroy(&new_ports);
2269 /* Initializes 'oc' appropriately as a management service controller for
2272 * The caller must free oc->target when it is no longer needed. */
2274 bridge_ofproto_controller_for_mgmt(const struct bridge *br,
2275 struct ofproto_controller *oc)
2277 oc->target = xasprintf("punix:%s/%s.mgmt", ovs_rundir(), br->name);
2278 oc->max_backoff = 0;
2279 oc->probe_interval = 60;
2280 oc->band = OFPROTO_OUT_OF_BAND;
2282 oc->burst_limit = 0;
2285 /* Converts ovsrec_controller 'c' into an ofproto_controller in 'oc'. */
2287 bridge_ofproto_controller_from_ovsrec(const struct ovsrec_controller *c,
2288 struct ofproto_controller *oc)
2290 oc->target = c->target;
2291 oc->max_backoff = c->max_backoff ? *c->max_backoff / 1000 : 8;
2292 oc->probe_interval = c->inactivity_probe ? *c->inactivity_probe / 1000 : 5;
2293 oc->band = (!c->connection_mode || !strcmp(c->connection_mode, "in-band")
2294 ? OFPROTO_IN_BAND : OFPROTO_OUT_OF_BAND);
2295 oc->rate_limit = c->controller_rate_limit ? *c->controller_rate_limit : 0;
2296 oc->burst_limit = (c->controller_burst_limit
2297 ? *c->controller_burst_limit : 0);
2300 /* Configures the IP stack for 'br''s local interface properly according to the
2301 * configuration in 'c'. */
2303 bridge_configure_local_iface_netdev(struct bridge *br,
2304 struct ovsrec_controller *c)
2306 struct netdev *netdev;
2307 struct in_addr mask, gateway;
2309 struct iface *local_iface;
2312 /* If there's no local interface or no IP address, give up. */
2313 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
2314 if (!local_iface || !c->local_ip || !inet_aton(c->local_ip, &ip)) {
2318 /* Bring up the local interface. */
2319 netdev = local_iface->netdev;
2320 netdev_turn_flags_on(netdev, NETDEV_UP, true);
2322 /* Configure the IP address and netmask. */
2323 if (!c->local_netmask
2324 || !inet_aton(c->local_netmask, &mask)
2326 mask.s_addr = guess_netmask(ip.s_addr);
2328 if (!netdev_set_in4(netdev, ip, mask)) {
2329 VLOG_INFO("bridge %s: configured IP address "IP_FMT", netmask "IP_FMT,
2330 br->name, IP_ARGS(&ip.s_addr), IP_ARGS(&mask.s_addr));
2333 /* Configure the default gateway. */
2334 if (c->local_gateway
2335 && inet_aton(c->local_gateway, &gateway)
2336 && gateway.s_addr) {
2337 if (!netdev_add_router(netdev, gateway)) {
2338 VLOG_INFO("bridge %s: configured gateway "IP_FMT,
2339 br->name, IP_ARGS(&gateway.s_addr));
2344 /* Returns true if 'a' and 'b' are the same except that any number of slashes
2345 * in either string are treated as equal to any number of slashes in the other,
2346 * e.g. "x///y" is equal to "x/y". */
2348 equal_pathnames(const char *a, const char *b)
2352 a += strspn(a, "/");
2353 b += strspn(b, "/");
2354 } else if (*a == '\0') {
2365 bridge_configure_remotes(struct bridge *br,
2366 const struct sockaddr_in *managers, size_t n_managers)
2368 const char *disable_ib_str, *queue_id_str;
2369 bool disable_in_band = false;
2372 struct ovsrec_controller **controllers;
2373 size_t n_controllers;
2375 enum ofproto_fail_mode fail_mode;
2377 struct ofproto_controller *ocs;
2381 /* Check if we should disable in-band control on this bridge. */
2382 disable_ib_str = bridge_get_other_config(br->cfg, "disable-in-band");
2383 if (disable_ib_str && !strcmp(disable_ib_str, "true")) {
2384 disable_in_band = true;
2387 /* Set OpenFlow queue ID for in-band control. */
2388 queue_id_str = bridge_get_other_config(br->cfg, "in-band-queue");
2389 queue_id = queue_id_str ? strtol(queue_id_str, NULL, 10) : -1;
2390 ofproto_set_in_band_queue(br->ofproto, queue_id);
2392 if (disable_in_band) {
2393 ofproto_set_extra_in_band_remotes(br->ofproto, NULL, 0);
2395 ofproto_set_extra_in_band_remotes(br->ofproto, managers, n_managers);
2398 n_controllers = bridge_get_controllers(br, &controllers);
2400 ocs = xmalloc((n_controllers + 1) * sizeof *ocs);
2403 bridge_ofproto_controller_for_mgmt(br, &ocs[n_ocs++]);
2404 for (i = 0; i < n_controllers; i++) {
2405 struct ovsrec_controller *c = controllers[i];
2407 if (!strncmp(c->target, "punix:", 6)
2408 || !strncmp(c->target, "unix:", 5)) {
2409 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2412 whitelist = xasprintf("unix:%s/%s.controller",
2413 ovs_rundir(), br->name);
2414 if (!equal_pathnames(c->target, whitelist)) {
2415 /* Prevent remote ovsdb-server users from accessing arbitrary
2416 * Unix domain sockets and overwriting arbitrary local
2418 VLOG_ERR_RL(&rl, "bridge %s: Not adding Unix domain socket "
2419 "controller \"%s\" due to possibility for remote "
2420 "exploit. Instead, specify whitelisted \"%s\" or "
2421 "connect to \"unix:%s/%s.mgmt\" (which is always "
2422 "available without special configuration).",
2423 br->name, c->target, whitelist,
2424 ovs_rundir(), br->name);
2432 bridge_configure_local_iface_netdev(br, c);
2433 bridge_ofproto_controller_from_ovsrec(c, &ocs[n_ocs]);
2434 if (disable_in_band) {
2435 ocs[n_ocs].band = OFPROTO_OUT_OF_BAND;
2440 ofproto_set_controllers(br->ofproto, ocs, n_ocs);
2441 free(ocs[0].target); /* From bridge_ofproto_controller_for_mgmt(). */
2444 /* Set the fail-mode. */
2445 fail_mode = !br->cfg->fail_mode
2446 || !strcmp(br->cfg->fail_mode, "standalone")
2447 ? OFPROTO_FAIL_STANDALONE
2448 : OFPROTO_FAIL_SECURE;
2449 ofproto_set_fail_mode(br->ofproto, fail_mode);
2451 /* Configure OpenFlow controller connection snooping. */
2452 if (!ofproto_has_snoops(br->ofproto)) {
2456 sset_add_and_free(&snoops, xasprintf("punix:%s/%s.snoop",
2457 ovs_rundir(), br->name));
2458 ofproto_set_snoops(br->ofproto, &snoops);
2459 sset_destroy(&snoops);
2463 /* Port functions. */
2465 static struct port *
2466 port_create(struct bridge *br, const struct ovsrec_port *cfg)
2470 port = xzalloc(sizeof *port);
2472 port->name = xstrdup(cfg->name);
2474 list_init(&port->ifaces);
2476 hmap_insert(&br->ports, &port->hmap_node, hash_string(port->name, 0));
2478 VLOG_INFO("created port %s on bridge %s", port->name, br->name);
2484 get_port_other_config(const struct ovsrec_port *port, const char *key,
2485 const char *default_value)
2489 value = get_ovsrec_key_value(port->key_other_config,
2490 port->value_other_config,
2491 port->n_other_config, key);
2492 return value ? value : default_value;
2496 get_interface_other_config(const struct ovsrec_interface *iface,
2497 const char *key, const char *default_value)
2501 value = get_ovsrec_key_value(iface->key_other_config,
2502 iface->value_other_config,
2503 iface->n_other_config, key);
2504 return value ? value : default_value;
2507 /* Deletes interfaces from 'port' that are no longer configured for it. */
2509 port_del_ifaces(struct port *port)
2511 struct iface *iface, *next;
2512 struct sset new_ifaces;
2515 /* Collect list of new interfaces. */
2516 sset_init(&new_ifaces);
2517 for (i = 0; i < port->cfg->n_interfaces; i++) {
2518 const char *name = port->cfg->interfaces[i]->name;
2519 const char *type = port->cfg->interfaces[i]->name;
2520 if (strcmp(type, "null")) {
2521 sset_add(&new_ifaces, name);
2525 /* Get rid of deleted interfaces. */
2526 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2527 if (!sset_contains(&new_ifaces, iface->name)) {
2528 iface_destroy(iface);
2532 sset_destroy(&new_ifaces);
2535 /* Adds new interfaces to 'port' and updates 'type' and 'cfg' members of
2538 port_add_ifaces(struct port *port)
2540 struct shash new_ifaces;
2541 struct shash_node *node;
2544 /* Collect new ifaces. */
2545 shash_init(&new_ifaces);
2546 for (i = 0; i < port->cfg->n_interfaces; i++) {
2547 const struct ovsrec_interface *cfg = port->cfg->interfaces[i];
2548 if (strcmp(cfg->type, "null")
2549 && !shash_add_once(&new_ifaces, cfg->name, cfg)) {
2550 VLOG_WARN("port %s: %s specified twice as port interface",
2551 port->name, cfg->name);
2552 iface_clear_db_record(cfg);
2556 /* Create new interfaces.
2557 * Update interface types and 'cfg' members. */
2558 SHASH_FOR_EACH (node, &new_ifaces) {
2559 const struct ovsrec_interface *cfg = node->data;
2560 const char *iface_name = node->name;
2561 struct iface *iface;
2563 iface = iface_lookup(port->bridge, iface_name);
2565 iface = iface_create(port, cfg);
2570 /* Determine interface type. The local port always has type
2571 * "internal". Other ports take their type from the database and
2572 * default to "system" if none is specified. */
2573 iface->type = (!strcmp(iface_name, port->bridge->name) ? "internal"
2574 : cfg->type[0] ? cfg->type
2577 shash_destroy(&new_ifaces);
2581 port_destroy(struct port *port)
2584 struct bridge *br = port->bridge;
2585 struct iface *iface, *next;
2588 ofproto_bundle_unregister(br->ofproto, port);
2591 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2592 iface_destroy(iface);
2595 hmap_remove(&br->ports, &port->hmap_node);
2597 VLOG_INFO("destroyed port %s on bridge %s", port->name, br->name);
2604 static struct port *
2605 port_lookup(const struct bridge *br, const char *name)
2609 HMAP_FOR_EACH_WITH_HASH (port, hmap_node, hash_string(name, 0),
2611 if (!strcmp(port->name, name)) {
2619 enable_lacp(struct port *port, bool *activep)
2621 if (!port->cfg->lacp) {
2622 /* XXX when LACP implementation has been sufficiently tested, enable by
2623 * default and make active on bonded ports. */
2625 } else if (!strcmp(port->cfg->lacp, "off")) {
2627 } else if (!strcmp(port->cfg->lacp, "active")) {
2630 } else if (!strcmp(port->cfg->lacp, "passive")) {
2634 VLOG_WARN("port %s: unknown LACP mode %s",
2635 port->name, port->cfg->lacp);
2640 static struct lacp_settings *
2641 port_configure_lacp(struct port *port, struct lacp_settings *s)
2643 const char *lacp_time;
2644 long long int custom_time;
2647 if (!enable_lacp(port, &s->active)) {
2651 s->name = port->name;
2652 memcpy(s->id, port->bridge->ea, ETH_ADDR_LEN);
2654 /* Prefer bondable links if unspecified. */
2655 priority = atoi(get_port_other_config(port->cfg, "lacp-system-priority",
2657 s->priority = (priority > 0 && priority <= UINT16_MAX
2659 : UINT16_MAX - !list_is_short(&port->ifaces));
2661 s->heartbeat = !strcmp(get_port_other_config(port->cfg,
2665 lacp_time = get_port_other_config(port->cfg, "lacp-time", "slow");
2666 custom_time = atoi(lacp_time);
2667 if (!strcmp(lacp_time, "fast")) {
2668 s->lacp_time = LACP_TIME_FAST;
2669 } else if (!strcmp(lacp_time, "slow")) {
2670 s->lacp_time = LACP_TIME_SLOW;
2671 } else if (custom_time > 0) {
2672 s->lacp_time = LACP_TIME_CUSTOM;
2673 s->custom_time = custom_time;
2675 s->lacp_time = LACP_TIME_SLOW;
2682 iface_configure_lacp(struct iface *iface, struct lacp_slave_settings *s)
2684 int priority, portid, key;
2686 portid = atoi(get_interface_other_config(iface->cfg, "lacp-port-id", "0"));
2687 priority = atoi(get_interface_other_config(iface->cfg,
2688 "lacp-port-priority", "0"));
2689 key = atoi(get_interface_other_config(iface->cfg, "lacp-aggregation-key",
2692 if (portid <= 0 || portid > UINT16_MAX) {
2693 portid = iface->ofp_port;
2696 if (priority <= 0 || priority > UINT16_MAX) {
2697 priority = UINT16_MAX;
2700 if (key < 0 || key > UINT16_MAX) {
2704 s->name = iface->name;
2706 s->priority = priority;
2711 port_configure_bond(struct port *port, struct bond_settings *s,
2712 uint32_t *bond_stable_ids)
2714 const char *detect_s;
2715 struct iface *iface;
2716 int miimon_interval;
2719 s->name = port->name;
2720 s->balance = BM_SLB;
2721 if (port->cfg->bond_mode
2722 && !bond_mode_from_string(&s->balance, port->cfg->bond_mode)) {
2723 VLOG_WARN("port %s: unknown bond_mode %s, defaulting to %s",
2724 port->name, port->cfg->bond_mode,
2725 bond_mode_to_string(s->balance));
2727 if (s->balance == BM_SLB && port->bridge->cfg->n_flood_vlans) {
2728 VLOG_WARN("port %s: SLB bonds are incompatible with flood_vlans, "
2729 "please use another bond type or disable flood_vlans",
2733 miimon_interval = atoi(get_port_other_config(port->cfg,
2734 "bond-miimon-interval", "0"));
2735 if (miimon_interval <= 0) {
2736 miimon_interval = 200;
2739 detect_s = get_port_other_config(port->cfg, "bond-detect-mode", "carrier");
2740 if (!strcmp(detect_s, "carrier")) {
2741 miimon_interval = 0;
2742 } else if (strcmp(detect_s, "miimon")) {
2743 VLOG_WARN("port %s: unsupported bond-detect-mode %s, "
2744 "defaulting to carrier", port->name, detect_s);
2745 miimon_interval = 0;
2748 s->up_delay = MAX(0, port->cfg->bond_updelay);
2749 s->down_delay = MAX(0, port->cfg->bond_downdelay);
2750 s->basis = atoi(get_port_other_config(port->cfg, "bond-hash-basis", "0"));
2751 s->rebalance_interval = atoi(
2752 get_port_other_config(port->cfg, "bond-rebalance-interval", "10000"));
2753 if (s->rebalance_interval < 1000) {
2754 s->rebalance_interval = 1000;
2757 s->fake_iface = port->cfg->bond_fake_iface;
2760 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
2761 long long stable_id;
2763 stable_id = atoll(get_interface_other_config(iface->cfg,
2764 "bond-stable-id", "0"));
2765 if (stable_id <= 0 || stable_id >= UINT32_MAX) {
2766 stable_id = iface->ofp_port;
2768 bond_stable_ids[i++] = stable_id;
2770 netdev_set_miimon_interval(iface->netdev, miimon_interval);
2774 /* Returns true if 'port' is synthetic, that is, if we constructed it locally
2775 * instead of obtaining it from the database. */
2777 port_is_synthetic(const struct port *port)
2779 return ovsdb_idl_row_is_synthetic(&port->cfg->header_);
2782 /* Interface functions. */
2784 static struct iface *
2785 iface_create(struct port *port, const struct ovsrec_interface *if_cfg)
2787 struct bridge *br = port->bridge;
2788 struct iface *iface;
2789 char *name = if_cfg->name;
2791 iface = xzalloc(sizeof *iface);
2793 iface->name = xstrdup(name);
2794 iface->ofp_port = -1;
2795 iface->tag = tag_create_random();
2796 iface->netdev = NULL;
2797 iface->cfg = if_cfg;
2799 hmap_insert(&br->iface_by_name, &iface->name_node, hash_string(name, 0));
2801 list_push_back(&port->ifaces, &iface->port_elem);
2803 VLOG_DBG("attached network device %s to port %s", iface->name, port->name);
2809 iface_destroy(struct iface *iface)
2812 struct port *port = iface->port;
2813 struct bridge *br = port->bridge;
2815 if (br->ofproto && iface->ofp_port >= 0) {
2816 ofproto_port_unregister(br->ofproto, iface->ofp_port);
2819 if (iface->ofp_port >= 0) {
2820 hmap_remove(&br->ifaces, &iface->ofp_port_node);
2823 list_remove(&iface->port_elem);
2824 hmap_remove(&br->iface_by_name, &iface->name_node);
2826 netdev_close(iface->netdev);
2833 static struct iface *
2834 iface_lookup(const struct bridge *br, const char *name)
2836 struct iface *iface;
2838 HMAP_FOR_EACH_WITH_HASH (iface, name_node, hash_string(name, 0),
2839 &br->iface_by_name) {
2840 if (!strcmp(iface->name, name)) {
2848 static struct iface *
2849 iface_find(const char *name)
2851 const struct bridge *br;
2853 HMAP_FOR_EACH (br, node, &all_bridges) {
2854 struct iface *iface = iface_lookup(br, name);
2863 static struct iface *
2864 iface_from_ofp_port(const struct bridge *br, uint16_t ofp_port)
2866 struct iface *iface;
2868 HMAP_FOR_EACH_IN_BUCKET (iface, ofp_port_node,
2869 hash_int(ofp_port, 0), &br->ifaces) {
2870 if (iface->ofp_port == ofp_port) {
2877 /* Set Ethernet address of 'iface', if one is specified in the configuration
2880 iface_set_mac(struct iface *iface)
2882 uint8_t ea[ETH_ADDR_LEN];
2884 if (!strcmp(iface->type, "internal")
2885 && iface->cfg->mac && eth_addr_from_string(iface->cfg->mac, ea)) {
2886 if (iface->ofp_port == OFPP_LOCAL) {
2887 VLOG_ERR("interface %s: ignoring mac in Interface record "
2888 "(use Bridge record to set local port's mac)",
2890 } else if (eth_addr_is_multicast(ea)) {
2891 VLOG_ERR("interface %s: cannot set MAC to multicast address",
2894 int error = netdev_set_etheraddr(iface->netdev, ea);
2896 VLOG_ERR("interface %s: setting MAC failed (%s)",
2897 iface->name, strerror(error));
2903 /* Sets the ofport column of 'if_cfg' to 'ofport'. */
2905 iface_set_ofport(const struct ovsrec_interface *if_cfg, int64_t ofport)
2907 if (if_cfg && !ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
2908 ovsrec_interface_set_ofport(if_cfg, &ofport, 1);
2912 /* Clears all of the fields in 'if_cfg' that indicate interface status, and
2913 * sets the "ofport" field to -1.
2915 * This is appropriate when 'if_cfg''s interface cannot be created or is
2916 * otherwise invalid. */
2918 iface_clear_db_record(const struct ovsrec_interface *if_cfg)
2920 if (!ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
2921 iface_set_ofport(if_cfg, -1);
2922 ovsrec_interface_set_status(if_cfg, NULL, NULL, 0);
2923 ovsrec_interface_set_admin_state(if_cfg, NULL);
2924 ovsrec_interface_set_duplex(if_cfg, NULL);
2925 ovsrec_interface_set_link_speed(if_cfg, NULL, 0);
2926 ovsrec_interface_set_link_state(if_cfg, NULL);
2927 ovsrec_interface_set_mtu(if_cfg, NULL, 0);
2928 ovsrec_interface_set_cfm_fault(if_cfg, NULL, 0);
2929 ovsrec_interface_set_cfm_remote_mpids(if_cfg, NULL, 0);
2930 ovsrec_interface_set_lacp_current(if_cfg, NULL, 0);
2931 ovsrec_interface_set_statistics(if_cfg, NULL, NULL, 0);
2935 /* Adds the 'n' key-value pairs in 'keys' in 'values' to 'shash'.
2937 * The value strings in '*shash' are taken directly from values[], not copied,
2938 * so the caller should not modify or free them. */
2940 shash_from_ovs_idl_map(char **keys, char **values, size_t n,
2941 struct shash *shash)
2946 for (i = 0; i < n; i++) {
2947 shash_add(shash, keys[i], values[i]);
2951 /* Creates 'keys' and 'values' arrays from 'shash'.
2953 * Sets 'keys' and 'values' to heap allocated arrays representing the key-value
2954 * pairs in 'shash'. The caller takes ownership of 'keys' and 'values'. They
2955 * are populated with with strings taken directly from 'shash' and thus have
2956 * the same ownership of the key-value pairs in shash.
2959 shash_to_ovs_idl_map(struct shash *shash,
2960 char ***keys, char ***values, size_t *n)
2964 struct shash_node *sn;
2966 count = shash_count(shash);
2968 k = xmalloc(count * sizeof *k);
2969 v = xmalloc(count * sizeof *v);
2972 SHASH_FOR_EACH(sn, shash) {
2983 struct iface_delete_queues_cbdata {
2984 struct netdev *netdev;
2985 const struct ovsdb_datum *queues;
2989 queue_ids_include(const struct ovsdb_datum *queues, int64_t target)
2991 union ovsdb_atom atom;
2993 atom.integer = target;
2994 return ovsdb_datum_find_key(queues, &atom, OVSDB_TYPE_INTEGER) != UINT_MAX;
2998 iface_delete_queues(unsigned int queue_id,
2999 const struct shash *details OVS_UNUSED, void *cbdata_)
3001 struct iface_delete_queues_cbdata *cbdata = cbdata_;
3003 if (!queue_ids_include(cbdata->queues, queue_id)) {
3004 netdev_delete_queue(cbdata->netdev, queue_id);
3009 iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos)
3011 struct ofpbuf queues_buf;
3013 ofpbuf_init(&queues_buf, 0);
3015 if (!qos || qos->type[0] == '\0' || qos->n_queues < 1) {
3016 netdev_set_qos(iface->netdev, NULL, NULL);
3018 struct iface_delete_queues_cbdata cbdata;
3019 struct shash details;
3023 /* Configure top-level Qos for 'iface'. */
3024 shash_from_ovs_idl_map(qos->key_other_config, qos->value_other_config,
3025 qos->n_other_config, &details);
3026 netdev_set_qos(iface->netdev, qos->type, &details);
3027 shash_destroy(&details);
3029 /* Deconfigure queues that were deleted. */
3030 cbdata.netdev = iface->netdev;
3031 cbdata.queues = ovsrec_qos_get_queues(qos, OVSDB_TYPE_INTEGER,
3033 netdev_dump_queues(iface->netdev, iface_delete_queues, &cbdata);
3035 /* Configure queues for 'iface'. */
3037 for (i = 0; i < qos->n_queues; i++) {
3038 const struct ovsrec_queue *queue = qos->value_queues[i];
3039 unsigned int queue_id = qos->key_queues[i];
3041 if (queue_id == 0) {
3045 if (queue->n_dscp == 1) {
3046 struct ofproto_port_queue *port_queue;
3048 port_queue = ofpbuf_put_uninit(&queues_buf,
3049 sizeof *port_queue);
3050 port_queue->queue = queue_id;
3051 port_queue->dscp = queue->dscp[0];
3054 shash_from_ovs_idl_map(queue->key_other_config,
3055 queue->value_other_config,
3056 queue->n_other_config, &details);
3057 netdev_set_queue(iface->netdev, queue_id, &details);
3058 shash_destroy(&details);
3061 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
3062 VLOG_WARN_RL(&rl, "interface %s: QoS configured without a default "
3063 "queue (queue 0). Packets not directed to a "
3064 "correctly configured queue may be dropped.",
3069 if (iface->ofp_port >= 0) {
3070 const struct ofproto_port_queue *port_queues = queues_buf.data;
3071 size_t n_queues = queues_buf.size / sizeof *port_queues;
3073 ofproto_port_set_queues(iface->port->bridge->ofproto, iface->ofp_port,
3074 port_queues, n_queues);
3077 netdev_set_policing(iface->netdev,
3078 iface->cfg->ingress_policing_rate,
3079 iface->cfg->ingress_policing_burst);
3081 ofpbuf_uninit(&queues_buf);
3085 iface_configure_cfm(struct iface *iface)
3087 const struct ovsrec_interface *cfg = iface->cfg;
3088 const char *extended_str, *opstate_str;
3089 struct cfm_settings s;
3091 if (!cfg->n_cfm_mpid) {
3092 ofproto_port_clear_cfm(iface->port->bridge->ofproto, iface->ofp_port);
3096 s.mpid = *cfg->cfm_mpid;
3097 s.interval = atoi(get_interface_other_config(iface->cfg, "cfm_interval",
3099 s.ccm_vlan = atoi(get_interface_other_config(iface->cfg, "cfm_ccm_vlan",
3101 if (s.interval <= 0) {
3105 extended_str = get_interface_other_config(iface->cfg, "cfm_extended",
3107 s.extended = !strcasecmp("true", extended_str);
3109 opstate_str = get_interface_other_config(iface->cfg, "cfm_opstate", "up");
3110 s.opup = !strcasecmp("up", opstate_str);
3112 ofproto_port_set_cfm(iface->port->bridge->ofproto, iface->ofp_port, &s);
3115 /* Returns true if 'iface' is synthetic, that is, if we constructed it locally
3116 * instead of obtaining it from the database. */
3118 iface_is_synthetic(const struct iface *iface)
3120 return ovsdb_idl_row_is_synthetic(&iface->cfg->header_);
3123 /* Port mirroring. */
3125 static struct mirror *
3126 mirror_find_by_uuid(struct bridge *br, const struct uuid *uuid)
3130 HMAP_FOR_EACH_IN_BUCKET (m, hmap_node, uuid_hash(uuid), &br->mirrors) {
3131 if (uuid_equals(uuid, &m->uuid)) {
3139 bridge_configure_mirrors(struct bridge *br)
3141 const struct ovsdb_datum *mc;
3142 unsigned long *flood_vlans;
3143 struct mirror *m, *next;
3146 /* Get rid of deleted mirrors. */
3147 mc = ovsrec_bridge_get_mirrors(br->cfg, OVSDB_TYPE_UUID);
3148 HMAP_FOR_EACH_SAFE (m, next, hmap_node, &br->mirrors) {
3149 union ovsdb_atom atom;
3151 atom.uuid = m->uuid;
3152 if (ovsdb_datum_find_key(mc, &atom, OVSDB_TYPE_UUID) == UINT_MAX) {
3157 /* Add new mirrors and reconfigure existing ones. */
3158 for (i = 0; i < br->cfg->n_mirrors; i++) {
3159 const struct ovsrec_mirror *cfg = br->cfg->mirrors[i];
3160 struct mirror *m = mirror_find_by_uuid(br, &cfg->header_.uuid);
3162 m = mirror_create(br, cfg);
3165 if (!mirror_configure(m)) {
3170 /* Update flooded vlans (for RSPAN). */
3171 flood_vlans = vlan_bitmap_from_array(br->cfg->flood_vlans,
3172 br->cfg->n_flood_vlans);
3173 ofproto_set_flood_vlans(br->ofproto, flood_vlans);
3174 bitmap_free(flood_vlans);
3177 static struct mirror *
3178 mirror_create(struct bridge *br, const struct ovsrec_mirror *cfg)
3182 m = xzalloc(sizeof *m);
3183 m->uuid = cfg->header_.uuid;
3184 hmap_insert(&br->mirrors, &m->hmap_node, uuid_hash(&m->uuid));
3186 m->name = xstrdup(cfg->name);
3192 mirror_destroy(struct mirror *m)
3195 struct bridge *br = m->bridge;
3198 ofproto_mirror_unregister(br->ofproto, m);
3201 hmap_remove(&br->mirrors, &m->hmap_node);
3208 mirror_collect_ports(struct mirror *m,
3209 struct ovsrec_port **in_ports, int n_in_ports,
3210 void ***out_portsp, size_t *n_out_portsp)
3212 void **out_ports = xmalloc(n_in_ports * sizeof *out_ports);
3213 size_t n_out_ports = 0;
3216 for (i = 0; i < n_in_ports; i++) {
3217 const char *name = in_ports[i]->name;
3218 struct port *port = port_lookup(m->bridge, name);
3220 out_ports[n_out_ports++] = port;
3222 VLOG_WARN("bridge %s: mirror %s cannot match on nonexistent "
3223 "port %s", m->bridge->name, m->name, name);
3226 *out_portsp = out_ports;
3227 *n_out_portsp = n_out_ports;
3231 mirror_configure(struct mirror *m)
3233 const struct ovsrec_mirror *cfg = m->cfg;
3234 struct ofproto_mirror_settings s;
3237 if (strcmp(cfg->name, m->name)) {
3239 m->name = xstrdup(cfg->name);
3243 /* Get output port or VLAN. */
3244 if (cfg->output_port) {
3245 s.out_bundle = port_lookup(m->bridge, cfg->output_port->name);
3246 if (!s.out_bundle) {
3247 VLOG_ERR("bridge %s: mirror %s outputs to port not on bridge",
3248 m->bridge->name, m->name);
3251 s.out_vlan = UINT16_MAX;
3253 if (cfg->output_vlan) {
3254 VLOG_ERR("bridge %s: mirror %s specifies both output port and "
3255 "output vlan; ignoring output vlan",
3256 m->bridge->name, m->name);
3258 } else if (cfg->output_vlan) {
3259 /* The database should prevent invalid VLAN values. */
3260 s.out_bundle = NULL;
3261 s.out_vlan = *cfg->output_vlan;
3263 VLOG_ERR("bridge %s: mirror %s does not specify output; ignoring",
3264 m->bridge->name, m->name);
3268 /* Get port selection. */
3269 if (cfg->select_all) {
3270 size_t n_ports = hmap_count(&m->bridge->ports);
3271 void **ports = xmalloc(n_ports * sizeof *ports);
3276 HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) {
3286 /* Get ports, dropping ports that don't exist.
3287 * The IDL ensures that there are no duplicates. */
3288 mirror_collect_ports(m, cfg->select_src_port, cfg->n_select_src_port,
3289 &s.srcs, &s.n_srcs);
3290 mirror_collect_ports(m, cfg->select_dst_port, cfg->n_select_dst_port,
3291 &s.dsts, &s.n_dsts);
3294 /* Get VLAN selection. */
3295 s.src_vlans = vlan_bitmap_from_array(cfg->select_vlan, cfg->n_select_vlan);
3298 ofproto_mirror_register(m->bridge->ofproto, m, &s);
3301 if (s.srcs != s.dsts) {
3310 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
3312 * This is deprecated. It is only for compatibility with broken device drivers
3313 * in old versions of Linux that do not properly support VLANs when VLAN
3314 * devices are not used. When broken device drivers are no longer in
3315 * widespread use, we will delete these interfaces. */
3317 static void **blocks;
3318 static size_t n_blocks, allocated_blocks;
3320 /* Adds 'block' to a list of blocks that have to be freed with free() when the
3321 * VLAN splinters are reconfigured. */
3323 register_block(void *block)
3325 if (n_blocks >= allocated_blocks) {
3326 blocks = x2nrealloc(blocks, &allocated_blocks, sizeof *blocks);
3328 blocks[n_blocks++] = block;
3331 /* Frees all of the blocks registered with register_block(). */
3333 free_registered_blocks(void)
3337 for (i = 0; i < n_blocks; i++) {
3343 /* Returns true if VLAN splinters are enabled on 'iface_cfg', false
3346 vlan_splinters_is_enabled(const struct ovsrec_interface *iface_cfg)
3350 value = get_interface_other_config(iface_cfg, "enable-vlan-splinters", "");
3351 return !strcmp(value, "true");
3354 /* Figures out the set of VLANs that are in use for the purpose of VLAN
3357 * If VLAN splinters are enabled on at least one interface and any VLANs are in
3358 * use, returns a 4096-bit bitmap with a 1-bit for each in-use VLAN (bits 0 and
3359 * 4095 will not be set). The caller is responsible for freeing the bitmap,
3362 * If VLANs splinters are not enabled on any interface or if no VLANs are in
3363 * use, returns NULL.
3365 * Updates 'vlan_splinters_enabled_anywhere'. */
3366 static unsigned long int *
3367 collect_splinter_vlans(const struct ovsrec_open_vswitch *ovs_cfg)
3369 unsigned long int *splinter_vlans;
3370 struct sset splinter_ifaces;
3371 const char *real_dev_name;
3372 struct shash *real_devs;
3373 struct shash_node *node;
3377 splinter_vlans = NULL;
3378 sset_init(&splinter_ifaces);
3379 for (i = 0; i < ovs_cfg->n_bridges; i++) {
3380 struct ovsrec_bridge *br_cfg = ovs_cfg->bridges[i];
3383 for (j = 0; j < br_cfg->n_ports; j++) {
3384 struct ovsrec_port *port_cfg = br_cfg->ports[j];
3387 for (k = 0; k < port_cfg->n_interfaces; k++) {
3388 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[k];
3390 if (vlan_splinters_is_enabled(iface_cfg)) {
3391 sset_add(&splinter_ifaces, iface_cfg->name);
3393 if (!splinter_vlans) {
3394 splinter_vlans = bitmap_allocate(4096);
3396 vlan_bitmap_from_array__(port_cfg->trunks,
3404 vlan_splinters_enabled_anywhere = splinter_vlans != NULL;
3405 if (!splinter_vlans) {
3406 sset_destroy(&splinter_ifaces);
3410 HMAP_FOR_EACH (br, node, &all_bridges) {
3412 ofproto_get_vlan_usage(br->ofproto, splinter_vlans);
3416 /* Don't allow VLANs 0 or 4095 to be splintered. VLAN 0 should appear on
3417 * the real device. VLAN 4095 is reserved and Linux doesn't allow a VLAN
3418 * device to be created for it. */
3419 bitmap_set0(splinter_vlans, 0);
3420 bitmap_set0(splinter_vlans, 4095);
3422 /* Delete all VLAN devices that we don't need. */
3424 real_devs = vlandev_get_real_devs();
3425 SHASH_FOR_EACH (node, real_devs) {
3426 const struct vlan_real_dev *real_dev = node->data;
3427 const struct vlan_dev *vlan_dev;
3428 bool real_dev_has_splinters;
3430 real_dev_has_splinters = sset_contains(&splinter_ifaces,
3432 HMAP_FOR_EACH (vlan_dev, hmap_node, &real_dev->vlan_devs) {
3433 if (!real_dev_has_splinters
3434 || !bitmap_is_set(splinter_vlans, vlan_dev->vid)) {
3435 struct netdev *netdev;
3437 if (!netdev_open(vlan_dev->name, "system", &netdev)) {
3438 if (!netdev_get_in4(netdev, NULL, NULL) ||
3439 !netdev_get_in6(netdev, NULL)) {
3440 vlandev_del(vlan_dev->name);
3442 /* It has an IP address configured, so we don't own
3443 * it. Don't delete it. */
3445 netdev_close(netdev);
3452 /* Add all VLAN devices that we need. */
3453 SSET_FOR_EACH (real_dev_name, &splinter_ifaces) {
3456 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
3457 if (!vlandev_get_name(real_dev_name, vid)) {
3458 vlandev_add(real_dev_name, vid);
3465 sset_destroy(&splinter_ifaces);
3467 if (bitmap_scan(splinter_vlans, 0, 4096) >= 4096) {
3468 free(splinter_vlans);
3471 return splinter_vlans;
3474 /* Pushes the configure of VLAN splinter port 'port' (e.g. eth0.9) down to
3477 configure_splinter_port(struct port *port)
3479 struct ofproto *ofproto = port->bridge->ofproto;
3480 uint16_t realdev_ofp_port;
3481 const char *realdev_name;
3482 struct iface *vlandev, *realdev;
3484 ofproto_bundle_unregister(port->bridge->ofproto, port);
3486 vlandev = CONTAINER_OF(list_front(&port->ifaces), struct iface,
3489 realdev_name = get_port_other_config(port->cfg, "realdev", NULL);
3490 realdev = iface_lookup(port->bridge, realdev_name);
3491 realdev_ofp_port = realdev ? realdev->ofp_port : 0;
3493 ofproto_port_set_realdev(ofproto, vlandev->ofp_port, realdev_ofp_port,
3497 static struct ovsrec_port *
3498 synthesize_splinter_port(const char *real_dev_name,
3499 const char *vlan_dev_name, int vid)
3501 struct ovsrec_interface *iface;
3502 struct ovsrec_port *port;
3504 iface = xzalloc(sizeof *iface);
3505 iface->name = xstrdup(vlan_dev_name);
3506 iface->type = "system";
3508 port = xzalloc(sizeof *port);
3509 port->interfaces = xmemdup(&iface, sizeof iface);
3510 port->n_interfaces = 1;
3511 port->name = xstrdup(vlan_dev_name);
3512 port->vlan_mode = "splinter";
3513 port->tag = xmalloc(sizeof *port->tag);
3515 port->key_other_config = xmalloc(sizeof *port->key_other_config);
3516 port->key_other_config[0] = "realdev";
3517 port->value_other_config = xmalloc(sizeof *port->value_other_config);
3518 port->value_other_config[0] = xstrdup(real_dev_name);
3519 port->n_other_config = 1;
3521 register_block(iface);
3522 register_block(iface->name);
3523 register_block(port);
3524 register_block(port->interfaces);
3525 register_block(port->name);
3526 register_block(port->tag);
3527 register_block(port->key_other_config);
3528 register_block(port->value_other_config);
3529 register_block(port->value_other_config[0]);
3534 /* For each interface with 'br' that has VLAN splinters enabled, adds a
3535 * corresponding ovsrec_port to 'ports' for each splinter VLAN marked with a
3536 * 1-bit in the 'splinter_vlans' bitmap. */
3538 add_vlan_splinter_ports(struct bridge *br,
3539 const unsigned long int *splinter_vlans,
3540 struct shash *ports)
3544 free_registered_blocks();
3546 /* We iterate through 'br->cfg->ports' instead of 'ports' here because
3547 * we're modifying 'ports'. */
3548 for (i = 0; i < br->cfg->n_ports; i++) {
3549 const char *name = br->cfg->ports[i]->name;
3550 struct ovsrec_port *port_cfg = shash_find_data(ports, name);
3553 for (j = 0; j < port_cfg->n_interfaces; j++) {
3554 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[j];
3556 if (vlan_splinters_is_enabled(iface_cfg)) {
3557 const char *real_dev_name;
3560 real_dev_name = iface_cfg->name;
3561 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
3562 const char *vlan_dev_name;
3564 vlan_dev_name = vlandev_get_name(real_dev_name, vid);
3566 && !shash_find(ports, vlan_dev_name)) {
3567 shash_add(ports, vlan_dev_name,
3568 synthesize_splinter_port(
3569 real_dev_name, vlan_dev_name, vid));
3578 mirror_refresh_stats(struct mirror *m)
3580 struct ofproto *ofproto = m->bridge->ofproto;
3581 uint64_t tx_packets, tx_bytes;
3584 size_t stat_cnt = 0;
3586 if (ofproto_mirror_get_stats(ofproto, m, &tx_packets, &tx_bytes)) {
3587 ovsrec_mirror_set_statistics(m->cfg, NULL, NULL, 0);
3591 if (tx_packets != UINT64_MAX) {
3592 keys[stat_cnt] = "tx_packets";
3593 values[stat_cnt] = tx_packets;
3596 if (tx_bytes != UINT64_MAX) {
3597 keys[stat_cnt] = "tx_bytes";
3598 values[stat_cnt] = tx_bytes;
3602 ovsrec_mirror_set_statistics(m->cfg, keys, values, stat_cnt);