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"
36 #include "ofp-print.h"
38 #include "ofproto/ofproto.h"
39 #include "poll-loop.h"
42 #include "socket-util.h"
43 #include "stream-ssl.h"
45 #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;
84 struct bridge *bridge;
85 struct hmap_node hmap_node; /* Element in struct bridge's "ports" hmap. */
88 const struct ovsrec_port *cfg;
90 /* An ordinary bridge port has 1 interface.
91 * A bridge port for bonding has at least 2 interfaces. */
92 struct list ifaces; /* List of "struct iface"s. */
96 struct hmap_node node; /* In 'all_bridges'. */
97 char *name; /* User-specified arbitrary name. */
98 char *type; /* Datapath type. */
99 uint8_t ea[ETH_ADDR_LEN]; /* Bridge Ethernet Address. */
100 uint8_t default_ea[ETH_ADDR_LEN]; /* Default MAC. */
101 const struct ovsrec_bridge *cfg;
103 /* OpenFlow switch processing. */
104 struct ofproto *ofproto; /* OpenFlow switch. */
107 struct hmap ports; /* "struct port"s indexed by name. */
108 struct hmap ifaces; /* "struct iface"s indexed by ofp_port. */
109 struct hmap iface_by_name; /* "struct iface"s indexed by name. */
111 /* Port mirroring. */
112 struct hmap mirrors; /* "struct mirror" indexed by UUID. */
114 /* Synthetic local port if necessary. */
115 struct ovsrec_port synth_local_port;
116 struct ovsrec_interface synth_local_iface;
117 struct ovsrec_interface *synth_local_ifacep;
120 /* All bridges, indexed by name. */
121 static struct hmap all_bridges = HMAP_INITIALIZER(&all_bridges);
123 /* OVSDB IDL used to obtain configuration. */
124 static struct ovsdb_idl *idl;
126 /* Each time this timer expires, the bridge fetches systems and interface
127 * statistics and pushes them into the database. */
128 #define STATS_INTERVAL (5 * 1000) /* In milliseconds. */
129 static long long int stats_timer = LLONG_MIN;
131 /* Stores the time after which rate limited statistics may be written to the
132 * database. Only updated when changes to the database require rate limiting.
134 #define DB_LIMIT_INTERVAL (1 * 1000) /* In milliseconds. */
135 static long long int db_limiter = LLONG_MIN;
137 static void add_del_bridges(const struct ovsrec_open_vswitch *);
138 static void bridge_del_ofprotos(void);
139 static bool bridge_add_ofprotos(struct bridge *);
140 static void bridge_create(const struct ovsrec_bridge *);
141 static void bridge_destroy(struct bridge *);
142 static struct bridge *bridge_lookup(const char *name);
143 static unixctl_cb_func bridge_unixctl_dump_flows;
144 static unixctl_cb_func bridge_unixctl_reconnect;
145 static size_t bridge_get_controllers(const struct bridge *br,
146 struct ovsrec_controller ***controllersp);
147 static void bridge_add_del_ports(struct bridge *);
148 static void bridge_add_ofproto_ports(struct bridge *);
149 static void bridge_del_ofproto_ports(struct bridge *);
150 static void bridge_refresh_ofp_port(struct bridge *);
151 static void bridge_configure_datapath_id(struct bridge *);
152 static void bridge_configure_flow_eviction_threshold(struct bridge *);
153 static void bridge_configure_netflow(struct bridge *);
154 static void bridge_configure_forward_bpdu(struct bridge *);
155 static void bridge_configure_sflow(struct bridge *, int *sflow_bridge_number);
156 static void bridge_configure_stp(struct bridge *);
157 static void bridge_configure_remotes(struct bridge *,
158 const struct sockaddr_in *managers,
160 static void bridge_pick_local_hw_addr(struct bridge *,
161 uint8_t ea[ETH_ADDR_LEN],
162 struct iface **hw_addr_iface);
163 static uint64_t bridge_pick_datapath_id(struct bridge *,
164 const uint8_t bridge_ea[ETH_ADDR_LEN],
165 struct iface *hw_addr_iface);
166 static const char *bridge_get_other_config(const struct ovsrec_bridge *,
168 static const char *get_port_other_config(const struct ovsrec_port *,
170 const char *default_value);
171 static uint64_t dpid_from_hash(const void *, size_t nbytes);
172 static bool bridge_has_bond_fake_iface(const struct bridge *,
174 static bool port_is_bond_fake_iface(const struct port *);
176 static unixctl_cb_func qos_unixctl_show;
178 static struct port *port_create(struct bridge *, const struct ovsrec_port *);
179 static void port_add_ifaces(struct port *);
180 static void port_del_ifaces(struct port *);
181 static void port_destroy(struct port *);
182 static struct port *port_lookup(const struct bridge *, const char *name);
183 static void port_configure(struct port *);
184 static struct lacp_settings *port_configure_lacp(struct port *,
185 struct lacp_settings *);
186 static void port_configure_bond(struct port *, struct bond_settings *,
187 uint32_t *bond_stable_ids);
188 static bool port_is_synthetic(const struct port *);
190 static void bridge_configure_mirrors(struct bridge *);
191 static struct mirror *mirror_create(struct bridge *,
192 const struct ovsrec_mirror *);
193 static void mirror_destroy(struct mirror *);
194 static bool mirror_configure(struct mirror *, const struct ovsrec_mirror *);
196 static void iface_configure_lacp(struct iface *, struct lacp_slave_settings *);
197 static struct iface *iface_create(struct port *port,
198 const struct ovsrec_interface *if_cfg);
199 static void iface_destroy(struct iface *);
200 static struct iface *iface_lookup(const struct bridge *, const char *name);
201 static struct iface *iface_find(const char *name);
202 static struct iface *iface_from_ofp_port(const struct bridge *,
204 static void iface_set_mac(struct iface *);
205 static void iface_set_ofport(const struct ovsrec_interface *, int64_t ofport);
206 static void iface_clear_db_record(const struct ovsrec_interface *if_cfg);
207 static void iface_configure_qos(struct iface *, const struct ovsrec_qos *);
208 static void iface_configure_cfm(struct iface *);
209 static void iface_refresh_cfm_stats(struct iface *);
210 static void iface_refresh_stats(struct iface *);
211 static void iface_refresh_status(struct iface *);
212 static bool iface_is_synthetic(const struct iface *);
214 static void shash_from_ovs_idl_map(char **keys, char **values, size_t n,
216 static void shash_to_ovs_idl_map(struct shash *,
217 char ***keys, char ***values, size_t *n);
219 /* Public functions. */
221 /* Initializes the bridge module, configuring it to obtain its configuration
222 * from an OVSDB server accessed over 'remote', which should be a string in a
223 * form acceptable to ovsdb_idl_create(). */
225 bridge_init(const char *remote)
227 /* Create connection to database. */
228 idl = ovsdb_idl_create(remote, &ovsrec_idl_class, true);
229 ovsdb_idl_set_lock(idl, "ovs_vswitchd");
231 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_cur_cfg);
232 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_statistics);
233 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_external_ids);
234 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_ovs_version);
235 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_db_version);
236 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_type);
237 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_version);
239 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_datapath_id);
240 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_status);
241 ovsdb_idl_omit(idl, &ovsrec_bridge_col_external_ids);
243 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_status);
244 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_statistics);
245 ovsdb_idl_omit(idl, &ovsrec_port_col_external_ids);
246 ovsdb_idl_omit(idl, &ovsrec_port_col_fake_bridge);
248 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_admin_state);
249 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_duplex);
250 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_speed);
251 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_state);
252 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_resets);
253 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mtu);
254 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ofport);
255 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_statistics);
256 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_status);
257 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault);
258 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_remote_mpids);
259 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_lacp_current);
260 ovsdb_idl_omit(idl, &ovsrec_interface_col_external_ids);
262 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_is_connected);
263 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_role);
264 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_status);
265 ovsdb_idl_omit(idl, &ovsrec_controller_col_external_ids);
267 ovsdb_idl_omit(idl, &ovsrec_qos_col_external_ids);
269 ovsdb_idl_omit(idl, &ovsrec_queue_col_external_ids);
271 ovsdb_idl_omit(idl, &ovsrec_mirror_col_external_ids);
273 ovsdb_idl_omit(idl, &ovsrec_netflow_col_external_ids);
275 ovsdb_idl_omit(idl, &ovsrec_sflow_col_external_ids);
277 ovsdb_idl_omit(idl, &ovsrec_manager_col_external_ids);
278 ovsdb_idl_omit(idl, &ovsrec_manager_col_inactivity_probe);
279 ovsdb_idl_omit(idl, &ovsrec_manager_col_is_connected);
280 ovsdb_idl_omit(idl, &ovsrec_manager_col_max_backoff);
281 ovsdb_idl_omit(idl, &ovsrec_manager_col_status);
283 ovsdb_idl_omit(idl, &ovsrec_ssl_col_external_ids);
285 /* Register unixctl commands. */
286 unixctl_command_register("qos/show", "interface", qos_unixctl_show, NULL);
287 unixctl_command_register("bridge/dump-flows", "bridge",
288 bridge_unixctl_dump_flows, NULL);
289 unixctl_command_register("bridge/reconnect", "[bridge]",
290 bridge_unixctl_reconnect, NULL);
299 struct bridge *br, *next_br;
301 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
304 ovsdb_idl_destroy(idl);
307 /* Looks at the list of managers in 'ovs_cfg' and extracts their remote IP
308 * addresses and ports into '*managersp' and '*n_managersp'. The caller is
309 * responsible for freeing '*managersp' (with free()).
311 * You may be asking yourself "why does ovs-vswitchd care?", because
312 * ovsdb-server is responsible for connecting to the managers, and ovs-vswitchd
313 * should not be and in fact is not directly involved in that. But
314 * ovs-vswitchd needs to make sure that ovsdb-server can reach the managers, so
315 * it has to tell in-band control where the managers are to enable that.
316 * (Thus, only managers connected in-band are collected.)
319 collect_in_band_managers(const struct ovsrec_open_vswitch *ovs_cfg,
320 struct sockaddr_in **managersp, size_t *n_managersp)
322 struct sockaddr_in *managers = NULL;
323 size_t n_managers = 0;
327 /* Collect all of the potential targets from the "targets" columns of the
328 * rows pointed to by "manager_options", excluding any that are
331 for (i = 0; i < ovs_cfg->n_manager_options; i++) {
332 struct ovsrec_manager *m = ovs_cfg->manager_options[i];
334 if (m->connection_mode && !strcmp(m->connection_mode, "out-of-band")) {
335 sset_find_and_delete(&targets, m->target);
337 sset_add(&targets, m->target);
341 /* Now extract the targets' IP addresses. */
342 if (!sset_is_empty(&targets)) {
345 managers = xmalloc(sset_count(&targets) * sizeof *managers);
346 SSET_FOR_EACH (target, &targets) {
347 struct sockaddr_in *sin = &managers[n_managers];
349 if ((!strncmp(target, "tcp:", 4)
350 && inet_parse_active(target + 4, JSONRPC_TCP_PORT, sin)) ||
351 (!strncmp(target, "ssl:", 4)
352 && inet_parse_active(target + 4, JSONRPC_SSL_PORT, sin))) {
357 sset_destroy(&targets);
359 *managersp = managers;
360 *n_managersp = n_managers;
364 bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
366 struct sockaddr_in *managers;
367 struct bridge *br, *next;
368 int sflow_bridge_number;
371 COVERAGE_INC(bridge_reconfigure);
373 /* Create and destroy "struct bridge"s, "struct port"s, and "struct
374 * iface"s according to 'ovs_cfg', with only very minimal configuration
377 * This is purely an update to bridge data structures. Nothing is pushed
378 * down to ofproto or lower layers. */
379 add_del_bridges(ovs_cfg);
380 HMAP_FOR_EACH (br, node, &all_bridges) {
381 bridge_add_del_ports(br);
384 /* Delete all datapaths and datapath ports that are no longer configured.
386 * The kernel will reject any attempt to add a given port to a datapath if
387 * that port already belongs to a different datapath, so we must do all
388 * port deletions before any port additions. A datapath always has a
389 * "local port" so we must delete not-configured datapaths too. */
390 bridge_del_ofprotos();
391 HMAP_FOR_EACH (br, node, &all_bridges) {
393 bridge_del_ofproto_ports(br);
397 /* Create datapaths and datapath ports that are missing.
399 * After this is done, we have our final set of bridges, ports, and
400 * interfaces. Every "struct bridge" has an ofproto, every "struct port"
401 * has at least one iface, every "struct iface" has a valid ofp_port and
403 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
404 if (!br->ofproto && !bridge_add_ofprotos(br)) {
408 HMAP_FOR_EACH (br, node, &all_bridges) {
409 bridge_refresh_ofp_port(br);
410 bridge_add_ofproto_ports(br);
413 /* Complete the configuration. */
414 sflow_bridge_number = 0;
415 collect_in_band_managers(ovs_cfg, &managers, &n_managers);
416 HMAP_FOR_EACH (br, node, &all_bridges) {
419 /* We need the datapath ID early to allow LACP ports to use it as the
420 * default system ID. */
421 bridge_configure_datapath_id(br);
423 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
426 port_configure(port);
428 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
429 iface_configure_cfm(iface);
430 iface_configure_qos(iface, port->cfg->qos);
431 iface_set_mac(iface);
434 bridge_configure_mirrors(br);
435 bridge_configure_flow_eviction_threshold(br);
436 bridge_configure_forward_bpdu(br);
437 bridge_configure_remotes(br, managers, n_managers);
438 bridge_configure_netflow(br);
439 bridge_configure_sflow(br, &sflow_bridge_number);
440 bridge_configure_stp(br);
444 /* ovs-vswitchd has completed initialization, so allow the process that
445 * forked us to exit successfully. */
446 daemonize_complete();
449 /* Iterate over all ofprotos and delete any of them that do not have a
450 * configured bridge or that are the wrong type. */
452 bridge_del_ofprotos(void)
460 ofproto_enumerate_types(&types);
461 SSET_FOR_EACH (type, &types) {
464 ofproto_enumerate_names(type, &names);
465 SSET_FOR_EACH (name, &names) {
466 struct bridge *br = bridge_lookup(name);
467 if (!br || strcmp(type, br->type)) {
468 ofproto_delete(name, type);
472 sset_destroy(&names);
473 sset_destroy(&types);
477 bridge_add_ofprotos(struct bridge *br)
479 int error = ofproto_create(br->name, br->type, &br->ofproto);
481 VLOG_ERR("failed to create bridge %s: %s", br->name, strerror(error));
488 port_configure(struct port *port)
490 const struct ovsrec_port *cfg = port->cfg;
491 struct bond_settings bond_settings;
492 struct lacp_settings lacp_settings;
493 struct ofproto_bundle_settings s;
501 s.slaves = xmalloc(list_size(&port->ifaces) * sizeof *s.slaves);
502 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
503 s.slaves[s.n_slaves++] = iface->ofp_port;
509 if (list_is_short(&port->ifaces)) {
510 if (*cfg->tag >= 0 && *cfg->tag <= 4095) {
514 /* It's possible that bonded, VLAN-tagged ports make sense. Maybe
515 * they even work as-is. But they have not been tested. */
516 VLOG_WARN("port %s: VLAN tags not supported on bonded ports",
521 /* Get VLAN trunks. */
524 s.trunks = vlan_bitmap_from_array(cfg->trunks, cfg->n_trunks);
528 if (cfg->vlan_mode) {
529 if (!strcmp(cfg->vlan_mode, "access")) {
530 s.vlan_mode = PORT_VLAN_ACCESS;
531 } else if (!strcmp(cfg->vlan_mode, "trunk")) {
532 s.vlan_mode = PORT_VLAN_TRUNK;
533 } else if (!strcmp(cfg->vlan_mode, "native-tagged")) {
534 s.vlan_mode = PORT_VLAN_NATIVE_TAGGED;
535 } else if (!strcmp(cfg->vlan_mode, "native-untagged")) {
536 s.vlan_mode = PORT_VLAN_NATIVE_UNTAGGED;
538 /* This "can't happen" because ovsdb-server should prevent it. */
539 VLOG_ERR("unknown VLAN mode %s", cfg->vlan_mode);
540 s.vlan_mode = PORT_VLAN_TRUNK;
544 s.vlan_mode = PORT_VLAN_ACCESS;
546 VLOG_ERR("port %s: ignoring trunks in favor of implicit vlan",
550 s.vlan_mode = PORT_VLAN_TRUNK;
554 /* Get LACP settings. */
555 s.lacp = port_configure_lacp(port, &lacp_settings);
559 s.lacp_slaves = xmalloc(s.n_slaves * sizeof *s.lacp_slaves);
560 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
561 iface_configure_lacp(iface, &s.lacp_slaves[i++]);
564 s.lacp_slaves = NULL;
567 /* Get bond settings. */
568 if (s.n_slaves > 1) {
569 s.bond = &bond_settings;
570 s.bond_stable_ids = xmalloc(s.n_slaves * sizeof *s.bond_stable_ids);
571 port_configure_bond(port, &bond_settings, s.bond_stable_ids);
574 s.bond_stable_ids = NULL;
576 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
577 netdev_set_miimon_interval(iface->netdev, 0);
582 ofproto_bundle_register(port->bridge->ofproto, port, &s);
588 free(s.bond_stable_ids);
591 /* Pick local port hardware address and datapath ID for 'br'. */
593 bridge_configure_datapath_id(struct bridge *br)
595 uint8_t ea[ETH_ADDR_LEN];
597 struct iface *local_iface;
598 struct iface *hw_addr_iface;
601 bridge_pick_local_hw_addr(br, ea, &hw_addr_iface);
602 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
604 int error = netdev_set_etheraddr(local_iface->netdev, ea);
606 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
607 VLOG_ERR_RL(&rl, "bridge %s: failed to set bridge "
608 "Ethernet address: %s",
609 br->name, strerror(error));
612 memcpy(br->ea, ea, ETH_ADDR_LEN);
614 dpid = bridge_pick_datapath_id(br, ea, hw_addr_iface);
615 ofproto_set_datapath_id(br->ofproto, dpid);
617 dpid_string = xasprintf("%016"PRIx64, dpid);
618 ovsrec_bridge_set_datapath_id(br->cfg, dpid_string);
622 /* Set NetFlow configuration on 'br'. */
624 bridge_configure_netflow(struct bridge *br)
626 struct ovsrec_netflow *cfg = br->cfg->netflow;
627 struct netflow_options opts;
630 ofproto_set_netflow(br->ofproto, NULL);
634 memset(&opts, 0, sizeof opts);
636 /* Get default NetFlow configuration from datapath.
637 * Apply overrides from 'cfg'. */
638 ofproto_get_netflow_ids(br->ofproto, &opts.engine_type, &opts.engine_id);
639 if (cfg->engine_type) {
640 opts.engine_type = *cfg->engine_type;
642 if (cfg->engine_id) {
643 opts.engine_id = *cfg->engine_id;
646 /* Configure active timeout interval. */
647 opts.active_timeout = cfg->active_timeout;
648 if (!opts.active_timeout) {
649 opts.active_timeout = -1;
650 } else if (opts.active_timeout < 0) {
651 VLOG_WARN("bridge %s: active timeout interval set to negative "
652 "value, using default instead (%d seconds)", br->name,
653 NF_ACTIVE_TIMEOUT_DEFAULT);
654 opts.active_timeout = -1;
657 /* Add engine ID to interface number to disambiguate bridgs? */
658 opts.add_id_to_iface = cfg->add_id_to_interface;
659 if (opts.add_id_to_iface) {
660 if (opts.engine_id > 0x7f) {
661 VLOG_WARN("bridge %s: NetFlow port mangling may conflict with "
662 "another vswitch, choose an engine id less than 128",
665 if (hmap_count(&br->ports) > 508) {
666 VLOG_WARN("bridge %s: NetFlow port mangling will conflict with "
667 "another port when more than 508 ports are used",
673 sset_init(&opts.collectors);
674 sset_add_array(&opts.collectors, cfg->targets, cfg->n_targets);
677 if (ofproto_set_netflow(br->ofproto, &opts)) {
678 VLOG_ERR("bridge %s: problem setting netflow collectors", br->name);
680 sset_destroy(&opts.collectors);
683 /* Set sFlow configuration on 'br'. */
685 bridge_configure_sflow(struct bridge *br, int *sflow_bridge_number)
687 const struct ovsrec_sflow *cfg = br->cfg->sflow;
688 struct ovsrec_controller **controllers;
689 struct ofproto_sflow_options oso;
690 size_t n_controllers;
694 ofproto_set_sflow(br->ofproto, NULL);
698 memset(&oso, 0, sizeof oso);
700 sset_init(&oso.targets);
701 sset_add_array(&oso.targets, cfg->targets, cfg->n_targets);
703 oso.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
705 oso.sampling_rate = *cfg->sampling;
708 oso.polling_interval = SFL_DEFAULT_POLLING_INTERVAL;
710 oso.polling_interval = *cfg->polling;
713 oso.header_len = SFL_DEFAULT_HEADER_SIZE;
715 oso.header_len = *cfg->header;
718 oso.sub_id = (*sflow_bridge_number)++;
719 oso.agent_device = cfg->agent;
721 oso.control_ip = NULL;
722 n_controllers = bridge_get_controllers(br, &controllers);
723 for (i = 0; i < n_controllers; i++) {
724 if (controllers[i]->local_ip) {
725 oso.control_ip = controllers[i]->local_ip;
729 ofproto_set_sflow(br->ofproto, &oso);
731 sset_destroy(&oso.targets);
735 port_configure_stp(const struct ofproto *ofproto, struct port *port,
736 struct ofproto_port_stp_settings *port_s,
737 int *port_num_counter, unsigned long *port_num_bitmap)
739 const char *config_str;
742 config_str = get_port_other_config(port->cfg, "stp-enable", NULL);
743 if (config_str && !strcmp(config_str, "false")) {
744 port_s->enable = false;
747 port_s->enable = true;
750 /* STP over bonds is not supported. */
751 if (!list_is_singleton(&port->ifaces)) {
752 VLOG_ERR("port %s: cannot enable STP on bonds, disabling",
754 port_s->enable = false;
758 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
760 /* Internal ports shouldn't participate in spanning tree, so
762 if (!strcmp(iface->type, "internal")) {
763 VLOG_DBG("port %s: disable STP on internal ports", port->name);
764 port_s->enable = false;
768 /* STP on mirror output ports is not supported. */
769 if (ofproto_is_mirror_output_bundle(ofproto, port)) {
770 VLOG_DBG("port %s: disable STP on mirror ports", port->name);
771 port_s->enable = false;
775 config_str = get_port_other_config(port->cfg, "stp-port-num", NULL);
777 unsigned long int port_num = strtoul(config_str, NULL, 0);
778 int port_idx = port_num - 1;
780 if (port_num < 1 || port_num > STP_MAX_PORTS) {
781 VLOG_ERR("port %s: invalid stp-port-num", port->name);
782 port_s->enable = false;
786 if (bitmap_is_set(port_num_bitmap, port_idx)) {
787 VLOG_ERR("port %s: duplicate stp-port-num %lu, disabling",
788 port->name, port_num);
789 port_s->enable = false;
792 bitmap_set1(port_num_bitmap, port_idx);
793 port_s->port_num = port_idx;
795 if (*port_num_counter > STP_MAX_PORTS) {
796 VLOG_ERR("port %s: too many STP ports, disabling", port->name);
797 port_s->enable = false;
801 port_s->port_num = (*port_num_counter)++;
804 config_str = get_port_other_config(port->cfg, "stp-path-cost", NULL);
806 port_s->path_cost = strtoul(config_str, NULL, 10);
810 if (netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL)) {
811 /* Couldn't get speed, so assume 100Mb/s. */
812 port_s->path_cost = 19;
816 mbps = netdev_features_to_bps(current) / 1000000;
817 port_s->path_cost = stp_convert_speed_to_cost(mbps);
821 config_str = get_port_other_config(port->cfg, "stp-port-priority", NULL);
823 port_s->priority = strtoul(config_str, NULL, 0);
825 port_s->priority = STP_DEFAULT_PORT_PRIORITY;
829 /* Set spanning tree configuration on 'br'. */
831 bridge_configure_stp(struct bridge *br)
833 if (!br->cfg->stp_enable) {
834 ofproto_set_stp(br->ofproto, NULL);
836 struct ofproto_stp_settings br_s;
837 const char *config_str;
839 int port_num_counter;
840 unsigned long *port_num_bitmap;
842 config_str = bridge_get_other_config(br->cfg, "stp-system-id");
844 uint8_t ea[ETH_ADDR_LEN];
846 if (eth_addr_from_string(config_str, ea)) {
847 br_s.system_id = eth_addr_to_uint64(ea);
849 br_s.system_id = eth_addr_to_uint64(br->ea);
850 VLOG_ERR("bridge %s: invalid stp-system-id, defaulting "
851 "to "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(br->ea));
854 br_s.system_id = eth_addr_to_uint64(br->ea);
857 config_str = bridge_get_other_config(br->cfg, "stp-priority");
859 br_s.priority = strtoul(config_str, NULL, 0);
861 br_s.priority = STP_DEFAULT_BRIDGE_PRIORITY;
864 config_str = bridge_get_other_config(br->cfg, "stp-hello-time");
866 br_s.hello_time = strtoul(config_str, NULL, 10) * 1000;
868 br_s.hello_time = STP_DEFAULT_HELLO_TIME;
871 config_str = bridge_get_other_config(br->cfg, "stp-max-age");
873 br_s.max_age = strtoul(config_str, NULL, 10) * 1000;
875 br_s.max_age = STP_DEFAULT_MAX_AGE;
878 config_str = bridge_get_other_config(br->cfg, "stp-forward-delay");
880 br_s.fwd_delay = strtoul(config_str, NULL, 10) * 1000;
882 br_s.fwd_delay = STP_DEFAULT_FWD_DELAY;
885 /* Configure STP on the bridge. */
886 if (ofproto_set_stp(br->ofproto, &br_s)) {
887 VLOG_ERR("bridge %s: could not enable STP", br->name);
891 /* Users must either set the port number with the "stp-port-num"
892 * configuration on all ports or none. If manual configuration
893 * is not done, then we allocate them sequentially. */
894 port_num_counter = 0;
895 port_num_bitmap = bitmap_allocate(STP_MAX_PORTS);
896 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
897 struct ofproto_port_stp_settings port_s;
900 port_configure_stp(br->ofproto, port, &port_s,
901 &port_num_counter, port_num_bitmap);
903 /* As bonds are not supported, just apply configuration to
905 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
906 if (ofproto_port_set_stp(br->ofproto, iface->ofp_port,
908 VLOG_ERR("port %s: could not enable STP", port->name);
914 if (bitmap_scan(port_num_bitmap, 0, STP_MAX_PORTS) != STP_MAX_PORTS
915 && port_num_counter) {
916 VLOG_ERR("bridge %s: must manually configure all STP port "
917 "IDs or none, disabling", br->name);
918 ofproto_set_stp(br->ofproto, NULL);
920 bitmap_free(port_num_bitmap);
925 bridge_has_bond_fake_iface(const struct bridge *br, const char *name)
927 const struct port *port = port_lookup(br, name);
928 return port && port_is_bond_fake_iface(port);
932 port_is_bond_fake_iface(const struct port *port)
934 return port->cfg->bond_fake_iface && !list_is_short(&port->ifaces);
938 add_del_bridges(const struct ovsrec_open_vswitch *cfg)
940 struct bridge *br, *next;
944 /* Collect new bridges' names and types. */
946 for (i = 0; i < cfg->n_bridges; i++) {
947 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
948 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
950 if (strchr(br_cfg->name, '/')) {
951 /* Prevent remote ovsdb-server users from accessing arbitrary
952 * directories, e.g. consider a bridge named "../../../etc/". */
953 VLOG_WARN_RL(&rl, "ignoring bridge with invalid name \"%s\"",
955 } else if (!shash_add_once(&new_br, br_cfg->name, br_cfg)) {
956 VLOG_WARN_RL(&rl, "bridge %s specified twice", br_cfg->name);
960 /* Get rid of deleted bridges or those whose types have changed.
961 * Update 'cfg' of bridges that still exist. */
962 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
963 br->cfg = shash_find_data(&new_br, br->name);
964 if (!br->cfg || strcmp(br->type, ofproto_normalize_type(
965 br->cfg->datapath_type))) {
970 /* Add new bridges. */
971 for (i = 0; i < cfg->n_bridges; i++) {
972 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
973 struct bridge *br = bridge_lookup(br_cfg->name);
975 bridge_create(br_cfg);
979 shash_destroy(&new_br);
982 /* Delete each ofproto port on 'br' that doesn't have a corresponding "struct
985 * The kernel will reject any attempt to add a given port to a datapath if that
986 * port already belongs to a different datapath, so we must do all port
987 * deletions before any port additions. */
989 bridge_del_ofproto_ports(struct bridge *br)
991 struct ofproto_port_dump dump;
992 struct ofproto_port ofproto_port;
994 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
995 const char *name = ofproto_port.name;
1000 /* Ignore the local port. We can't change it anyhow. */
1001 if (!strcmp(name, br->name)) {
1005 /* Get the type that 'ofproto_port' should have (ordinarily the
1006 * type of its corresponding iface) or NULL if it should be
1008 iface = iface_lookup(br, name);
1009 type = (iface ? iface->type
1010 : bridge_has_bond_fake_iface(br, name) ? "internal"
1013 /* If it's the wrong type then delete the ofproto port. */
1015 && !strcmp(ofproto_port.type, type)
1016 && (!iface || !iface->netdev
1017 || !strcmp(netdev_get_type(iface->netdev), type))) {
1020 error = ofproto_port_del(br->ofproto, ofproto_port.ofp_port);
1022 VLOG_WARN("bridge %s: failed to remove %s interface (%s)",
1023 br->name, name, strerror(error));
1026 netdev_close(iface->netdev);
1027 iface->netdev = NULL;
1033 iface_set_ofp_port(struct iface *iface, int ofp_port)
1035 struct bridge *br = iface->port->bridge;
1037 assert(iface->ofp_port < 0 && ofp_port >= 0);
1038 iface->ofp_port = ofp_port;
1039 hmap_insert(&br->ifaces, &iface->ofp_port_node, hash_int(ofp_port, 0));
1040 iface_set_ofport(iface->cfg, ofp_port);
1044 bridge_refresh_ofp_port(struct bridge *br)
1046 struct ofproto_port_dump dump;
1047 struct ofproto_port ofproto_port;
1050 /* Clear all the "ofp_port"es. */
1051 hmap_clear(&br->ifaces);
1052 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1053 struct iface *iface;
1055 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1056 iface->ofp_port = -1;
1060 /* Obtain the correct "ofp_port"s from ofproto. */
1061 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
1062 struct iface *iface = iface_lookup(br, ofproto_port.name);
1064 if (iface->ofp_port >= 0) {
1065 VLOG_WARN("bridge %s: interface %s reported twice",
1066 br->name, ofproto_port.name);
1067 } else if (iface_from_ofp_port(br, ofproto_port.ofp_port)) {
1068 VLOG_WARN("bridge %s: interface %"PRIu16" reported twice",
1069 br->name, ofproto_port.ofp_port);
1071 iface_set_ofp_port(iface, ofproto_port.ofp_port);
1077 /* Add an ofproto port for any "struct iface" that doesn't have one.
1078 * Delete any "struct iface" for which this fails.
1079 * Delete any "struct port" that thereby ends up with no ifaces. */
1081 bridge_add_ofproto_ports(struct bridge *br)
1083 struct port *port, *next_port;
1085 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
1086 struct iface *iface, *next_iface;
1087 struct ofproto_port ofproto_port;
1089 LIST_FOR_EACH_SAFE (iface, next_iface, port_elem, &port->ifaces) {
1092 /* Open the netdev. */
1093 if (!iface->netdev) {
1094 error = netdev_open(iface->name, iface->type, &iface->netdev);
1096 VLOG_WARN("could not open network device %s (%s)",
1097 iface->name, strerror(error));
1103 /* Configure the netdev. */
1104 if (iface->netdev) {
1108 shash_from_ovs_idl_map(iface->cfg->key_options,
1109 iface->cfg->value_options,
1110 iface->cfg->n_options, &args);
1111 error = netdev_set_config(iface->netdev, &args);
1112 shash_destroy(&args);
1115 VLOG_WARN("could not configure network device %s (%s)",
1116 iface->name, strerror(error));
1117 netdev_close(iface->netdev);
1118 iface->netdev = NULL;
1122 /* Add the port, if necessary. */
1123 if (iface->netdev && iface->ofp_port < 0) {
1127 error = ofproto_port_add(br->ofproto, iface->netdev,
1130 iface_set_ofp_port(iface, ofp_port);
1132 netdev_close(iface->netdev);
1133 iface->netdev = NULL;
1137 /* Populate stats columns in new Interface rows. */
1138 if (iface->netdev && !iface->cfg->mtu) {
1139 iface_refresh_stats(iface);
1140 iface_refresh_status(iface);
1143 /* Delete the iface if we failed. */
1144 if (iface->netdev && iface->ofp_port >= 0) {
1145 VLOG_DBG("bridge %s: interface %s is on port %d",
1146 br->name, iface->name, iface->ofp_port);
1148 if (iface->netdev) {
1149 VLOG_ERR("bridge %s: missing %s interface, dropping",
1150 br->name, iface->name);
1152 /* We already reported a related error, don't bother
1153 * duplicating it. */
1155 iface_clear_db_record(iface->cfg);
1156 iface_destroy(iface);
1159 if (list_is_empty(&port->ifaces)) {
1160 VLOG_WARN("%s port has no interfaces, dropping", port->name);
1165 /* Add bond fake iface if necessary. */
1166 if (port_is_bond_fake_iface(port)) {
1167 if (ofproto_port_query_by_name(br->ofproto, port->name,
1169 struct netdev *netdev;
1172 error = netdev_open(port->name, "internal", &netdev);
1174 ofproto_port_add(br->ofproto, netdev, NULL);
1175 netdev_close(netdev);
1177 VLOG_WARN("could not open network device %s (%s)",
1178 port->name, strerror(error));
1181 /* Already exists, nothing to do. */
1182 ofproto_port_destroy(&ofproto_port);
1189 get_ovsrec_key_value(const struct ovsdb_idl_row *row,
1190 const struct ovsdb_idl_column *column,
1193 const struct ovsdb_datum *datum;
1194 union ovsdb_atom atom;
1197 datum = ovsdb_idl_get(row, column, OVSDB_TYPE_STRING, OVSDB_TYPE_STRING);
1198 atom.string = (char *) key;
1199 idx = ovsdb_datum_find_key(datum, &atom, OVSDB_TYPE_STRING);
1200 return idx == UINT_MAX ? NULL : datum->values[idx].string;
1204 bridge_get_other_config(const struct ovsrec_bridge *br_cfg, const char *key)
1206 return get_ovsrec_key_value(&br_cfg->header_,
1207 &ovsrec_bridge_col_other_config, key);
1210 /* Set Flow eviction threshold */
1212 bridge_configure_flow_eviction_threshold(struct bridge *br)
1214 const char *threshold_str;
1217 threshold_str = bridge_get_other_config(br->cfg, "flow-eviction-threshold");
1218 if (threshold_str) {
1219 threshold = strtoul(threshold_str, NULL, 10);
1221 threshold = OFPROTO_FLOW_EVICTON_THRESHOLD_DEFAULT;
1223 ofproto_set_flow_eviction_threshold(br->ofproto, threshold);
1226 /* Set forward BPDU option. */
1228 bridge_configure_forward_bpdu(struct bridge *br)
1230 const char *forward_bpdu_str;
1231 bool forward_bpdu = false;
1233 forward_bpdu_str = bridge_get_other_config(br->cfg, "forward-bpdu");
1234 if (forward_bpdu_str && !strcmp(forward_bpdu_str, "true")) {
1235 forward_bpdu = true;
1237 ofproto_set_forward_bpdu(br->ofproto, forward_bpdu);
1241 bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
1242 struct iface **hw_addr_iface)
1244 struct hmapx mirror_output_ports;
1247 bool found_addr = false;
1251 *hw_addr_iface = NULL;
1253 /* Did the user request a particular MAC? */
1254 hwaddr = bridge_get_other_config(br->cfg, "hwaddr");
1255 if (hwaddr && eth_addr_from_string(hwaddr, ea)) {
1256 if (eth_addr_is_multicast(ea)) {
1257 VLOG_ERR("bridge %s: cannot set MAC address to multicast "
1258 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1259 } else if (eth_addr_is_zero(ea)) {
1260 VLOG_ERR("bridge %s: cannot set MAC address to zero", br->name);
1266 /* Mirror output ports don't participate in picking the local hardware
1267 * address. ofproto can't help us find out whether a given port is a
1268 * mirror output because we haven't configured mirrors yet, so we need to
1269 * accumulate them ourselves. */
1270 hmapx_init(&mirror_output_ports);
1271 for (i = 0; i < br->cfg->n_mirrors; i++) {
1272 struct ovsrec_mirror *m = br->cfg->mirrors[i];
1273 if (m->output_port) {
1274 hmapx_add(&mirror_output_ports, m->output_port);
1278 /* Otherwise choose the minimum non-local MAC address among all of the
1280 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1281 uint8_t iface_ea[ETH_ADDR_LEN];
1282 struct iface *candidate;
1283 struct iface *iface;
1285 /* Mirror output ports don't participate. */
1286 if (hmapx_contains(&mirror_output_ports, port->cfg)) {
1290 /* Choose the MAC address to represent the port. */
1292 if (port->cfg->mac && eth_addr_from_string(port->cfg->mac, iface_ea)) {
1293 /* Find the interface with this Ethernet address (if any) so that
1294 * we can provide the correct devname to the caller. */
1295 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1296 uint8_t candidate_ea[ETH_ADDR_LEN];
1297 if (!netdev_get_etheraddr(candidate->netdev, candidate_ea)
1298 && eth_addr_equals(iface_ea, candidate_ea)) {
1303 /* Choose the interface whose MAC address will represent the port.
1304 * The Linux kernel bonding code always chooses the MAC address of
1305 * the first slave added to a bond, and the Fedora networking
1306 * scripts always add slaves to a bond in alphabetical order, so
1307 * for compatibility we choose the interface with the name that is
1308 * first in alphabetical order. */
1309 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1310 if (!iface || strcmp(candidate->name, iface->name) < 0) {
1315 /* The local port doesn't count (since we're trying to choose its
1316 * MAC address anyway). */
1317 if (iface->ofp_port == OFPP_LOCAL) {
1322 error = netdev_get_etheraddr(iface->netdev, iface_ea);
1328 /* Compare against our current choice. */
1329 if (!eth_addr_is_multicast(iface_ea) &&
1330 !eth_addr_is_local(iface_ea) &&
1331 !eth_addr_is_reserved(iface_ea) &&
1332 !eth_addr_is_zero(iface_ea) &&
1333 (!found_addr || eth_addr_compare_3way(iface_ea, ea) < 0))
1335 memcpy(ea, iface_ea, ETH_ADDR_LEN);
1336 *hw_addr_iface = iface;
1341 VLOG_DBG("bridge %s: using bridge Ethernet address "ETH_ADDR_FMT,
1342 br->name, ETH_ADDR_ARGS(ea));
1344 memcpy(ea, br->default_ea, ETH_ADDR_LEN);
1345 *hw_addr_iface = NULL;
1346 VLOG_WARN("bridge %s: using default bridge Ethernet "
1347 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1350 hmapx_destroy(&mirror_output_ports);
1353 /* Choose and returns the datapath ID for bridge 'br' given that the bridge
1354 * Ethernet address is 'bridge_ea'. If 'bridge_ea' is the Ethernet address of
1355 * an interface on 'br', then that interface must be passed in as
1356 * 'hw_addr_iface'; if 'bridge_ea' was derived some other way, then
1357 * 'hw_addr_iface' must be passed in as a null pointer. */
1359 bridge_pick_datapath_id(struct bridge *br,
1360 const uint8_t bridge_ea[ETH_ADDR_LEN],
1361 struct iface *hw_addr_iface)
1364 * The procedure for choosing a bridge MAC address will, in the most
1365 * ordinary case, also choose a unique MAC that we can use as a datapath
1366 * ID. In some special cases, though, multiple bridges will end up with
1367 * the same MAC address. This is OK for the bridges, but it will confuse
1368 * the OpenFlow controller, because each datapath needs a unique datapath
1371 * Datapath IDs must be unique. It is also very desirable that they be
1372 * stable from one run to the next, so that policy set on a datapath
1375 const char *datapath_id;
1378 datapath_id = bridge_get_other_config(br->cfg, "datapath-id");
1379 if (datapath_id && dpid_from_string(datapath_id, &dpid)) {
1383 if (hw_addr_iface) {
1385 if (!netdev_get_vlan_vid(hw_addr_iface->netdev, &vlan)) {
1387 * A bridge whose MAC address is taken from a VLAN network device
1388 * (that is, a network device created with vconfig(8) or similar
1389 * tool) will have the same MAC address as a bridge on the VLAN
1390 * device's physical network device.
1392 * Handle this case by hashing the physical network device MAC
1393 * along with the VLAN identifier.
1395 uint8_t buf[ETH_ADDR_LEN + 2];
1396 memcpy(buf, bridge_ea, ETH_ADDR_LEN);
1397 buf[ETH_ADDR_LEN] = vlan >> 8;
1398 buf[ETH_ADDR_LEN + 1] = vlan;
1399 return dpid_from_hash(buf, sizeof buf);
1402 * Assume that this bridge's MAC address is unique, since it
1403 * doesn't fit any of the cases we handle specially.
1408 * A purely internal bridge, that is, one that has no non-virtual
1409 * network devices on it at all, is more difficult because it has no
1410 * natural unique identifier at all.
1412 * When the host is a XenServer, we handle this case by hashing the
1413 * host's UUID with the name of the bridge. Names of bridges are
1414 * persistent across XenServer reboots, although they can be reused if
1415 * an internal network is destroyed and then a new one is later
1416 * created, so this is fairly effective.
1418 * When the host is not a XenServer, we punt by using a random MAC
1419 * address on each run.
1421 const char *host_uuid = xenserver_get_host_uuid();
1423 char *combined = xasprintf("%s,%s", host_uuid, br->name);
1424 dpid = dpid_from_hash(combined, strlen(combined));
1430 return eth_addr_to_uint64(bridge_ea);
1434 dpid_from_hash(const void *data, size_t n)
1436 uint8_t hash[SHA1_DIGEST_SIZE];
1438 BUILD_ASSERT_DECL(sizeof hash >= ETH_ADDR_LEN);
1439 sha1_bytes(data, n, hash);
1440 eth_addr_mark_random(hash);
1441 return eth_addr_to_uint64(hash);
1445 iface_refresh_status(struct iface *iface)
1449 enum netdev_flags flags;
1456 if (iface_is_synthetic(iface)) {
1462 if (!netdev_get_status(iface->netdev, &sh)) {
1464 char **keys, **values;
1466 shash_to_ovs_idl_map(&sh, &keys, &values, &n);
1467 ovsrec_interface_set_status(iface->cfg, keys, values, n);
1472 ovsrec_interface_set_status(iface->cfg, NULL, NULL, 0);
1475 shash_destroy_free_data(&sh);
1477 error = netdev_get_flags(iface->netdev, &flags);
1479 ovsrec_interface_set_admin_state(iface->cfg, flags & NETDEV_UP ? "up" : "down");
1482 ovsrec_interface_set_admin_state(iface->cfg, NULL);
1485 error = netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
1487 ovsrec_interface_set_duplex(iface->cfg,
1488 netdev_features_is_full_duplex(current)
1490 /* warning: uint64_t -> int64_t conversion */
1491 bps = netdev_features_to_bps(current);
1492 ovsrec_interface_set_link_speed(iface->cfg, &bps, 1);
1495 ovsrec_interface_set_duplex(iface->cfg, NULL);
1496 ovsrec_interface_set_link_speed(iface->cfg, NULL, 0);
1499 error = netdev_get_mtu(iface->netdev, &mtu);
1502 ovsrec_interface_set_mtu(iface->cfg, &mtu_64, 1);
1505 ovsrec_interface_set_mtu(iface->cfg, NULL, 0);
1509 /* Writes 'iface''s CFM statistics to the database. */
1511 iface_refresh_cfm_stats(struct iface *iface)
1513 const struct ovsrec_interface *cfg = iface->cfg;
1515 const uint64_t *rmps;
1518 if (iface_is_synthetic(iface)) {
1522 fault = ofproto_port_get_cfm_fault(iface->port->bridge->ofproto,
1525 bool fault_bool = fault;
1526 ovsrec_interface_set_cfm_fault(cfg, &fault_bool, 1);
1528 ovsrec_interface_set_cfm_fault(cfg, NULL, 0);
1531 error = ofproto_port_get_cfm_remote_mpids(iface->port->bridge->ofproto,
1532 iface->ofp_port, &rmps, &n_rmps);
1534 ovsrec_interface_set_cfm_remote_mpids(cfg, (const int64_t *)rmps,
1537 ovsrec_interface_set_cfm_remote_mpids(cfg, NULL, 0);
1542 iface_refresh_stats(struct iface *iface)
1544 #define IFACE_STATS \
1545 IFACE_STAT(rx_packets, "rx_packets") \
1546 IFACE_STAT(tx_packets, "tx_packets") \
1547 IFACE_STAT(rx_bytes, "rx_bytes") \
1548 IFACE_STAT(tx_bytes, "tx_bytes") \
1549 IFACE_STAT(rx_dropped, "rx_dropped") \
1550 IFACE_STAT(tx_dropped, "tx_dropped") \
1551 IFACE_STAT(rx_errors, "rx_errors") \
1552 IFACE_STAT(tx_errors, "tx_errors") \
1553 IFACE_STAT(rx_frame_errors, "rx_frame_err") \
1554 IFACE_STAT(rx_over_errors, "rx_over_err") \
1555 IFACE_STAT(rx_crc_errors, "rx_crc_err") \
1556 IFACE_STAT(collisions, "collisions")
1558 #define IFACE_STAT(MEMBER, NAME) NAME,
1559 static char *keys[] = { IFACE_STATS };
1561 int64_t values[ARRAY_SIZE(keys)];
1564 struct netdev_stats stats;
1566 if (iface_is_synthetic(iface)) {
1570 /* Intentionally ignore return value, since errors will set 'stats' to
1571 * all-1s, and we will deal with that correctly below. */
1572 netdev_get_stats(iface->netdev, &stats);
1574 /* Copy statistics into values[] array. */
1576 #define IFACE_STAT(MEMBER, NAME) values[i++] = stats.MEMBER;
1579 assert(i == ARRAY_SIZE(keys));
1581 ovsrec_interface_set_statistics(iface->cfg, keys, values, ARRAY_SIZE(keys));
1586 br_refresh_stp_status(struct bridge *br)
1588 struct ofproto *ofproto = br->ofproto;
1589 struct ofproto_stp_status status;
1590 char *keys[3], *values[3];
1593 if (ofproto_get_stp_status(ofproto, &status)) {
1597 if (!status.enabled) {
1598 ovsrec_bridge_set_status(br->cfg, NULL, NULL, 0);
1602 keys[0] = "stp_bridge_id",
1603 values[0] = xasprintf(STP_ID_FMT, STP_ID_ARGS(status.bridge_id));
1604 keys[1] = "stp_designated_root",
1605 values[1] = xasprintf(STP_ID_FMT, STP_ID_ARGS(status.designated_root));
1606 keys[2] = "stp_root_path_cost",
1607 values[2] = xasprintf("%d", status.root_path_cost);
1609 ovsrec_bridge_set_status(br->cfg, keys, values, ARRAY_SIZE(values));
1611 for (i = 0; i < ARRAY_SIZE(values); i++) {
1617 port_refresh_stp_status(struct port *port)
1619 struct ofproto *ofproto = port->bridge->ofproto;
1620 struct iface *iface;
1621 struct ofproto_port_stp_status status;
1623 char *str_values[4];
1624 int64_t int_values[3];
1627 if (port_is_synthetic(port)) {
1631 /* STP doesn't currently support bonds. */
1632 if (!list_is_singleton(&port->ifaces)) {
1633 ovsrec_port_set_status(port->cfg, NULL, NULL, 0);
1637 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
1639 if (ofproto_port_get_stp_status(ofproto, iface->ofp_port, &status)) {
1643 if (!status.enabled) {
1644 ovsrec_port_set_status(port->cfg, NULL, NULL, 0);
1645 ovsrec_port_set_statistics(port->cfg, NULL, NULL, 0);
1649 /* Set Status column. */
1650 keys[0] = "stp_port_id";
1651 str_values[0] = xasprintf(STP_PORT_ID_FMT, status.port_id);
1652 keys[1] = "stp_state";
1653 str_values[1] = xstrdup(stp_state_name(status.state));
1654 keys[2] = "stp_sec_in_state";
1655 str_values[2] = xasprintf("%u", status.sec_in_state);
1656 keys[3] = "stp_role";
1657 str_values[3] = xstrdup(stp_role_name(status.role));
1659 ovsrec_port_set_status(port->cfg, keys, str_values,
1660 ARRAY_SIZE(str_values));
1662 for (i = 0; i < ARRAY_SIZE(str_values); i++) {
1663 free(str_values[i]);
1666 /* Set Statistics column. */
1667 keys[0] = "stp_tx_count";
1668 int_values[0] = status.tx_count;
1669 keys[1] = "stp_rx_count";
1670 int_values[1] = status.rx_count;
1671 keys[2] = "stp_error_count";
1672 int_values[2] = status.error_count;
1674 ovsrec_port_set_statistics(port->cfg, keys, int_values,
1675 ARRAY_SIZE(int_values));
1679 enable_system_stats(const struct ovsrec_open_vswitch *cfg)
1683 /* Use other-config:enable-system-stats by preference. */
1684 enable = get_ovsrec_key_value(&cfg->header_,
1685 &ovsrec_open_vswitch_col_other_config,
1686 "enable-statistics");
1688 return !strcmp(enable, "true");
1691 /* Disable by default. */
1696 refresh_system_stats(const struct ovsrec_open_vswitch *cfg)
1698 struct ovsdb_datum datum;
1702 if (enable_system_stats(cfg)) {
1703 get_system_stats(&stats);
1706 ovsdb_datum_from_shash(&datum, &stats);
1707 ovsdb_idl_txn_write(&cfg->header_, &ovsrec_open_vswitch_col_statistics,
1711 static inline const char *
1712 nx_role_to_str(enum nx_role role)
1717 case NX_ROLE_MASTER:
1722 return "*** INVALID ROLE ***";
1727 refresh_controller_status(void)
1731 const struct ovsrec_controller *cfg;
1735 /* Accumulate status for controllers on all bridges. */
1736 HMAP_FOR_EACH (br, node, &all_bridges) {
1737 ofproto_get_ofproto_controller_info(br->ofproto, &info);
1740 /* Update each controller in the database with current status. */
1741 OVSREC_CONTROLLER_FOR_EACH(cfg, idl) {
1742 struct ofproto_controller_info *cinfo =
1743 shash_find_data(&info, cfg->target);
1746 ovsrec_controller_set_is_connected(cfg, cinfo->is_connected);
1747 ovsrec_controller_set_role(cfg, nx_role_to_str(cinfo->role));
1748 ovsrec_controller_set_status(cfg, (char **) cinfo->pairs.keys,
1749 (char **) cinfo->pairs.values,
1752 ovsrec_controller_set_is_connected(cfg, false);
1753 ovsrec_controller_set_role(cfg, NULL);
1754 ovsrec_controller_set_status(cfg, NULL, NULL, 0);
1758 ofproto_free_ofproto_controller_info(&info);
1762 refresh_cfm_stats(void)
1764 static struct ovsdb_idl_txn *txn = NULL;
1769 txn = ovsdb_idl_txn_create(idl);
1771 HMAP_FOR_EACH (br, node, &all_bridges) {
1772 struct iface *iface;
1774 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
1775 iface_refresh_cfm_stats(iface);
1780 if (ovsdb_idl_txn_commit(txn) != TXN_INCOMPLETE) {
1781 ovsdb_idl_txn_destroy(txn);
1786 /* Performs periodic activity required by bridges that needs to be done with
1787 * the least possible latency.
1789 * It makes sense to call this function a couple of times per poll loop, to
1790 * provide a significant performance boost on some benchmarks with ofprotos
1791 * that use the ofproto-dpif implementation. */
1793 bridge_run_fast(void)
1797 HMAP_FOR_EACH (br, node, &all_bridges) {
1798 ofproto_run_fast(br->ofproto);
1805 const struct ovsrec_open_vswitch *cfg;
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 (database_changed) {
1848 struct ovsdb_idl_txn *txn = ovsdb_idl_txn_create(idl);
1850 bridge_reconfigure(cfg);
1852 ovsrec_open_vswitch_set_cur_cfg(cfg, cfg->next_cfg);
1853 ovsdb_idl_txn_commit(txn);
1854 ovsdb_idl_txn_destroy(txn); /* XXX */
1856 /* We still need to reconfigure to avoid dangling pointers to
1857 * now-destroyed ovsrec structures inside bridge data. */
1858 static const struct ovsrec_open_vswitch null_cfg;
1860 bridge_reconfigure(&null_cfg);
1864 /* Refresh system and interface stats if necessary. */
1865 if (time_msec() >= stats_timer) {
1867 struct ovsdb_idl_txn *txn;
1869 txn = ovsdb_idl_txn_create(idl);
1870 HMAP_FOR_EACH (br, node, &all_bridges) {
1873 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1874 struct iface *iface;
1876 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1877 iface_refresh_stats(iface);
1878 iface_refresh_status(iface);
1882 refresh_system_stats(cfg);
1883 refresh_controller_status();
1884 ovsdb_idl_txn_commit(txn);
1885 ovsdb_idl_txn_destroy(txn); /* XXX */
1888 stats_timer = time_msec() + STATS_INTERVAL;
1891 if (time_msec() >= db_limiter) {
1892 struct ovsdb_idl_txn *txn;
1894 txn = ovsdb_idl_txn_create(idl);
1895 HMAP_FOR_EACH (br, node, &all_bridges) {
1896 struct iface *iface;
1899 br_refresh_stp_status(br);
1901 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1902 port_refresh_stp_status(port);
1905 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
1906 const char *link_state;
1907 int64_t link_resets;
1910 if (iface_is_synthetic(iface)) {
1914 current = ofproto_port_is_lacp_current(br->ofproto,
1918 ovsrec_interface_set_lacp_current(iface->cfg, &bl, 1);
1920 ovsrec_interface_set_lacp_current(iface->cfg, NULL, 0);
1923 link_state = netdev_get_carrier(iface->netdev) ? "up" : "down";
1924 ovsrec_interface_set_link_state(iface->cfg, link_state);
1926 link_resets = netdev_get_carrier_resets(iface->netdev);
1927 ovsrec_interface_set_link_resets(iface->cfg, &link_resets, 1);
1931 if (ovsdb_idl_txn_commit(txn) != TXN_UNCHANGED) {
1932 db_limiter = time_msec() + DB_LIMIT_INTERVAL;
1934 ovsdb_idl_txn_destroy(txn);
1937 refresh_cfm_stats();
1943 ovsdb_idl_wait(idl);
1944 if (!hmap_is_empty(&all_bridges)) {
1947 HMAP_FOR_EACH (br, node, &all_bridges) {
1948 ofproto_wait(br->ofproto);
1950 poll_timer_wait_until(stats_timer);
1952 if (db_limiter > time_msec()) {
1953 poll_timer_wait_until(db_limiter);
1958 /* QoS unixctl user interface functions. */
1960 struct qos_unixctl_show_cbdata {
1962 struct iface *iface;
1966 qos_unixctl_show_cb(unsigned int queue_id,
1967 const struct shash *details,
1970 struct qos_unixctl_show_cbdata *data = aux;
1971 struct ds *ds = data->ds;
1972 struct iface *iface = data->iface;
1973 struct netdev_queue_stats stats;
1974 struct shash_node *node;
1977 ds_put_cstr(ds, "\n");
1979 ds_put_format(ds, "Queue %u:\n", queue_id);
1981 ds_put_cstr(ds, "Default:\n");
1984 SHASH_FOR_EACH (node, details) {
1985 ds_put_format(ds, "\t%s: %s\n", node->name, (char *)node->data);
1988 error = netdev_get_queue_stats(iface->netdev, queue_id, &stats);
1990 if (stats.tx_packets != UINT64_MAX) {
1991 ds_put_format(ds, "\ttx_packets: %"PRIu64"\n", stats.tx_packets);
1994 if (stats.tx_bytes != UINT64_MAX) {
1995 ds_put_format(ds, "\ttx_bytes: %"PRIu64"\n", stats.tx_bytes);
1998 if (stats.tx_errors != UINT64_MAX) {
1999 ds_put_format(ds, "\ttx_errors: %"PRIu64"\n", stats.tx_errors);
2002 ds_put_format(ds, "\tFailed to get statistics for queue %u: %s",
2003 queue_id, strerror(error));
2008 qos_unixctl_show(struct unixctl_conn *conn,
2009 const char *args, void *aux OVS_UNUSED)
2011 struct ds ds = DS_EMPTY_INITIALIZER;
2012 struct shash sh = SHASH_INITIALIZER(&sh);
2013 struct iface *iface;
2015 struct shash_node *node;
2016 struct qos_unixctl_show_cbdata data;
2019 iface = iface_find(args);
2021 unixctl_command_reply(conn, 501, "no such interface");
2025 netdev_get_qos(iface->netdev, &type, &sh);
2027 if (*type != '\0') {
2028 ds_put_format(&ds, "QoS: %s %s\n", iface->name, type);
2030 SHASH_FOR_EACH (node, &sh) {
2031 ds_put_format(&ds, "%s: %s\n", node->name, (char *)node->data);
2036 error = netdev_dump_queues(iface->netdev, qos_unixctl_show_cb, &data);
2039 ds_put_format(&ds, "failed to dump queues: %s", strerror(error));
2041 unixctl_command_reply(conn, 200, ds_cstr(&ds));
2043 ds_put_format(&ds, "QoS not configured on %s\n", iface->name);
2044 unixctl_command_reply(conn, 501, ds_cstr(&ds));
2047 shash_destroy_free_data(&sh);
2051 /* Bridge reconfiguration functions. */
2053 bridge_create(const struct ovsrec_bridge *br_cfg)
2057 assert(!bridge_lookup(br_cfg->name));
2058 br = xzalloc(sizeof *br);
2060 br->name = xstrdup(br_cfg->name);
2061 br->type = xstrdup(ofproto_normalize_type(br_cfg->datapath_type));
2064 /* Derive the default Ethernet address from the bridge's UUID. This should
2065 * be unique and it will be stable between ovs-vswitchd runs. */
2066 memcpy(br->default_ea, &br_cfg->header_.uuid, ETH_ADDR_LEN);
2067 eth_addr_mark_random(br->default_ea);
2069 hmap_init(&br->ports);
2070 hmap_init(&br->ifaces);
2071 hmap_init(&br->iface_by_name);
2072 hmap_init(&br->mirrors);
2074 hmap_insert(&all_bridges, &br->node, hash_string(br->name, 0));
2078 bridge_destroy(struct bridge *br)
2081 struct mirror *mirror, *next_mirror;
2082 struct port *port, *next_port;
2084 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
2087 HMAP_FOR_EACH_SAFE (mirror, next_mirror, hmap_node, &br->mirrors) {
2088 mirror_destroy(mirror);
2090 hmap_remove(&all_bridges, &br->node);
2091 ofproto_destroy(br->ofproto);
2092 hmap_destroy(&br->ifaces);
2093 hmap_destroy(&br->ports);
2094 hmap_destroy(&br->iface_by_name);
2095 hmap_destroy(&br->mirrors);
2102 static struct bridge *
2103 bridge_lookup(const char *name)
2107 HMAP_FOR_EACH_WITH_HASH (br, node, hash_string(name, 0), &all_bridges) {
2108 if (!strcmp(br->name, name)) {
2115 /* Handle requests for a listing of all flows known by the OpenFlow
2116 * stack, including those normally hidden. */
2118 bridge_unixctl_dump_flows(struct unixctl_conn *conn,
2119 const char *args, void *aux OVS_UNUSED)
2124 br = bridge_lookup(args);
2126 unixctl_command_reply(conn, 501, "Unknown bridge");
2131 ofproto_get_all_flows(br->ofproto, &results);
2133 unixctl_command_reply(conn, 200, ds_cstr(&results));
2134 ds_destroy(&results);
2137 /* "bridge/reconnect [BRIDGE]": makes BRIDGE drop all of its controller
2138 * connections and reconnect. If BRIDGE is not specified, then all bridges
2139 * drop their controller connections and reconnect. */
2141 bridge_unixctl_reconnect(struct unixctl_conn *conn,
2142 const char *args, void *aux OVS_UNUSED)
2145 if (args[0] != '\0') {
2146 br = bridge_lookup(args);
2148 unixctl_command_reply(conn, 501, "Unknown bridge");
2151 ofproto_reconnect_controllers(br->ofproto);
2153 HMAP_FOR_EACH (br, node, &all_bridges) {
2154 ofproto_reconnect_controllers(br->ofproto);
2157 unixctl_command_reply(conn, 200, NULL);
2161 bridge_get_controllers(const struct bridge *br,
2162 struct ovsrec_controller ***controllersp)
2164 struct ovsrec_controller **controllers;
2165 size_t n_controllers;
2167 controllers = br->cfg->controller;
2168 n_controllers = br->cfg->n_controller;
2170 if (n_controllers == 1 && !strcmp(controllers[0]->target, "none")) {
2176 *controllersp = controllers;
2178 return n_controllers;
2181 /* Adds and deletes "struct port"s and "struct iface"s under 'br' to match
2182 * those configured in 'br->cfg'. */
2184 bridge_add_del_ports(struct bridge *br)
2186 struct port *port, *next;
2187 struct shash_node *node;
2188 struct shash new_ports;
2191 /* Collect new ports. */
2192 shash_init(&new_ports);
2193 for (i = 0; i < br->cfg->n_ports; i++) {
2194 const char *name = br->cfg->ports[i]->name;
2195 if (!shash_add_once(&new_ports, name, br->cfg->ports[i])) {
2196 VLOG_WARN("bridge %s: %s specified twice as bridge port",
2200 if (bridge_get_controllers(br, NULL)
2201 && !shash_find(&new_ports, br->name)) {
2202 VLOG_WARN("bridge %s: no port named %s, synthesizing one",
2203 br->name, br->name);
2205 br->synth_local_port.interfaces = &br->synth_local_ifacep;
2206 br->synth_local_port.n_interfaces = 1;
2207 br->synth_local_port.name = br->name;
2209 br->synth_local_iface.name = br->name;
2210 br->synth_local_iface.type = "internal";
2212 br->synth_local_ifacep = &br->synth_local_iface;
2214 shash_add(&new_ports, br->name, &br->synth_local_port);
2217 /* Get rid of deleted ports.
2218 * Get rid of deleted interfaces on ports that still exist.
2219 * Update 'cfg' of ports that still exist. */
2220 HMAP_FOR_EACH_SAFE (port, next, hmap_node, &br->ports) {
2221 port->cfg = shash_find_data(&new_ports, port->name);
2225 port_del_ifaces(port);
2229 /* Create new ports.
2230 * Add new interfaces to existing ports. */
2231 SHASH_FOR_EACH (node, &new_ports) {
2232 struct port *port = port_lookup(br, node->name);
2234 struct ovsrec_port *cfg = node->data;
2235 port = port_create(br, cfg);
2237 port_add_ifaces(port);
2238 if (list_is_empty(&port->ifaces)) {
2239 VLOG_WARN("bridge %s: port %s has no interfaces, dropping",
2240 br->name, port->name);
2244 shash_destroy(&new_ports);
2247 /* Initializes 'oc' appropriately as a management service controller for
2250 * The caller must free oc->target when it is no longer needed. */
2252 bridge_ofproto_controller_for_mgmt(const struct bridge *br,
2253 struct ofproto_controller *oc)
2255 oc->target = xasprintf("punix:%s/%s.mgmt", ovs_rundir(), br->name);
2256 oc->max_backoff = 0;
2257 oc->probe_interval = 60;
2258 oc->band = OFPROTO_OUT_OF_BAND;
2260 oc->burst_limit = 0;
2263 /* Converts ovsrec_controller 'c' into an ofproto_controller in 'oc'. */
2265 bridge_ofproto_controller_from_ovsrec(const struct ovsrec_controller *c,
2266 struct ofproto_controller *oc)
2268 oc->target = c->target;
2269 oc->max_backoff = c->max_backoff ? *c->max_backoff / 1000 : 8;
2270 oc->probe_interval = c->inactivity_probe ? *c->inactivity_probe / 1000 : 5;
2271 oc->band = (!c->connection_mode || !strcmp(c->connection_mode, "in-band")
2272 ? OFPROTO_IN_BAND : OFPROTO_OUT_OF_BAND);
2273 oc->rate_limit = c->controller_rate_limit ? *c->controller_rate_limit : 0;
2274 oc->burst_limit = (c->controller_burst_limit
2275 ? *c->controller_burst_limit : 0);
2278 /* Configures the IP stack for 'br''s local interface properly according to the
2279 * configuration in 'c'. */
2281 bridge_configure_local_iface_netdev(struct bridge *br,
2282 struct ovsrec_controller *c)
2284 struct netdev *netdev;
2285 struct in_addr mask, gateway;
2287 struct iface *local_iface;
2290 /* If there's no local interface or no IP address, give up. */
2291 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
2292 if (!local_iface || !c->local_ip || !inet_aton(c->local_ip, &ip)) {
2296 /* Bring up the local interface. */
2297 netdev = local_iface->netdev;
2298 netdev_turn_flags_on(netdev, NETDEV_UP, true);
2300 /* Configure the IP address and netmask. */
2301 if (!c->local_netmask
2302 || !inet_aton(c->local_netmask, &mask)
2304 mask.s_addr = guess_netmask(ip.s_addr);
2306 if (!netdev_set_in4(netdev, ip, mask)) {
2307 VLOG_INFO("bridge %s: configured IP address "IP_FMT", netmask "IP_FMT,
2308 br->name, IP_ARGS(&ip.s_addr), IP_ARGS(&mask.s_addr));
2311 /* Configure the default gateway. */
2312 if (c->local_gateway
2313 && inet_aton(c->local_gateway, &gateway)
2314 && gateway.s_addr) {
2315 if (!netdev_add_router(netdev, gateway)) {
2316 VLOG_INFO("bridge %s: configured gateway "IP_FMT,
2317 br->name, IP_ARGS(&gateway.s_addr));
2322 /* Returns true if 'a' and 'b' are the same except that any number of slashes
2323 * in either string are treated as equal to any number of slashes in the other,
2324 * e.g. "x///y" is equal to "x/y". */
2326 equal_pathnames(const char *a, const char *b)
2330 a += strspn(a, "/");
2331 b += strspn(b, "/");
2332 } else if (*a == '\0') {
2343 bridge_configure_remotes(struct bridge *br,
2344 const struct sockaddr_in *managers, size_t n_managers)
2346 const char *disable_ib_str, *queue_id_str;
2347 bool disable_in_band = false;
2350 struct ovsrec_controller **controllers;
2351 size_t n_controllers;
2353 enum ofproto_fail_mode fail_mode;
2355 struct ofproto_controller *ocs;
2359 /* Check if we should disable in-band control on this bridge. */
2360 disable_ib_str = bridge_get_other_config(br->cfg, "disable-in-band");
2361 if (disable_ib_str && !strcmp(disable_ib_str, "true")) {
2362 disable_in_band = true;
2365 /* Set OpenFlow queue ID for in-band control. */
2366 queue_id_str = bridge_get_other_config(br->cfg, "in-band-queue");
2367 queue_id = queue_id_str ? strtol(queue_id_str, NULL, 10) : -1;
2368 ofproto_set_in_band_queue(br->ofproto, queue_id);
2370 if (disable_in_band) {
2371 ofproto_set_extra_in_band_remotes(br->ofproto, NULL, 0);
2373 ofproto_set_extra_in_band_remotes(br->ofproto, managers, n_managers);
2376 n_controllers = bridge_get_controllers(br, &controllers);
2378 ocs = xmalloc((n_controllers + 1) * sizeof *ocs);
2381 bridge_ofproto_controller_for_mgmt(br, &ocs[n_ocs++]);
2382 for (i = 0; i < n_controllers; i++) {
2383 struct ovsrec_controller *c = controllers[i];
2385 if (!strncmp(c->target, "punix:", 6)
2386 || !strncmp(c->target, "unix:", 5)) {
2387 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2390 whitelist = xasprintf("unix:%s/%s.controller",
2391 ovs_rundir(), br->name);
2392 if (!equal_pathnames(c->target, whitelist)) {
2393 /* Prevent remote ovsdb-server users from accessing arbitrary
2394 * Unix domain sockets and overwriting arbitrary local
2396 VLOG_ERR_RL(&rl, "bridge %s: Not adding Unix domain socket "
2397 "controller \"%s\" due to possibility for remote "
2398 "exploit. Instead, specify whitelisted \"%s\" or "
2399 "connect to \"unix:%s/%s.mgmt\" (which is always "
2400 "available without special configuration).",
2401 br->name, c->target, whitelist,
2402 ovs_rundir(), br->name);
2410 bridge_configure_local_iface_netdev(br, c);
2411 bridge_ofproto_controller_from_ovsrec(c, &ocs[n_ocs]);
2412 if (disable_in_band) {
2413 ocs[n_ocs].band = OFPROTO_OUT_OF_BAND;
2418 ofproto_set_controllers(br->ofproto, ocs, n_ocs);
2419 free(ocs[0].target); /* From bridge_ofproto_controller_for_mgmt(). */
2422 /* Set the fail-mode. */
2423 fail_mode = !br->cfg->fail_mode
2424 || !strcmp(br->cfg->fail_mode, "standalone")
2425 ? OFPROTO_FAIL_STANDALONE
2426 : OFPROTO_FAIL_SECURE;
2427 ofproto_set_fail_mode(br->ofproto, fail_mode);
2429 /* Configure OpenFlow controller connection snooping. */
2430 if (!ofproto_has_snoops(br->ofproto)) {
2434 sset_add_and_free(&snoops, xasprintf("punix:%s/%s.snoop",
2435 ovs_rundir(), br->name));
2436 ofproto_set_snoops(br->ofproto, &snoops);
2437 sset_destroy(&snoops);
2441 /* Port functions. */
2443 static struct port *
2444 port_create(struct bridge *br, const struct ovsrec_port *cfg)
2448 port = xzalloc(sizeof *port);
2450 port->name = xstrdup(cfg->name);
2452 list_init(&port->ifaces);
2454 hmap_insert(&br->ports, &port->hmap_node, hash_string(port->name, 0));
2456 VLOG_INFO("created port %s on bridge %s", port->name, br->name);
2462 get_port_other_config(const struct ovsrec_port *port, const char *key,
2463 const char *default_value)
2467 value = get_ovsrec_key_value(&port->header_, &ovsrec_port_col_other_config,
2469 return value ? value : default_value;
2473 get_interface_other_config(const struct ovsrec_interface *iface,
2474 const char *key, const char *default_value)
2478 value = get_ovsrec_key_value(&iface->header_,
2479 &ovsrec_interface_col_other_config, key);
2480 return value ? value : default_value;
2483 /* Deletes interfaces from 'port' that are no longer configured for it. */
2485 port_del_ifaces(struct port *port)
2487 struct iface *iface, *next;
2488 struct sset new_ifaces;
2491 /* Collect list of new interfaces. */
2492 sset_init(&new_ifaces);
2493 for (i = 0; i < port->cfg->n_interfaces; i++) {
2494 const char *name = port->cfg->interfaces[i]->name;
2495 const char *type = port->cfg->interfaces[i]->name;
2496 if (strcmp(type, "null")) {
2497 sset_add(&new_ifaces, name);
2501 /* Get rid of deleted interfaces. */
2502 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2503 if (!sset_contains(&new_ifaces, iface->name)) {
2504 iface_destroy(iface);
2508 sset_destroy(&new_ifaces);
2511 /* Adds new interfaces to 'port' and updates 'type' and 'cfg' members of
2514 port_add_ifaces(struct port *port)
2516 struct shash new_ifaces;
2517 struct shash_node *node;
2520 /* Collect new ifaces. */
2521 shash_init(&new_ifaces);
2522 for (i = 0; i < port->cfg->n_interfaces; i++) {
2523 const struct ovsrec_interface *cfg = port->cfg->interfaces[i];
2524 if (strcmp(cfg->type, "null")
2525 && !shash_add_once(&new_ifaces, cfg->name, cfg)) {
2526 VLOG_WARN("port %s: %s specified twice as port interface",
2527 port->name, cfg->name);
2528 iface_clear_db_record(cfg);
2532 /* Create new interfaces.
2533 * Update interface types and 'cfg' members. */
2534 SHASH_FOR_EACH (node, &new_ifaces) {
2535 const struct ovsrec_interface *cfg = node->data;
2536 const char *iface_name = node->name;
2537 struct iface *iface;
2539 iface = iface_lookup(port->bridge, iface_name);
2541 iface = iface_create(port, cfg);
2546 /* Determine interface type. The local port always has type
2547 * "internal". Other ports take their type from the database and
2548 * default to "system" if none is specified. */
2549 iface->type = (!strcmp(iface_name, port->bridge->name) ? "internal"
2550 : cfg->type[0] ? cfg->type
2553 shash_destroy(&new_ifaces);
2557 port_destroy(struct port *port)
2560 struct bridge *br = port->bridge;
2561 struct iface *iface, *next;
2564 ofproto_bundle_unregister(br->ofproto, port);
2567 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2568 iface_destroy(iface);
2571 hmap_remove(&br->ports, &port->hmap_node);
2573 VLOG_INFO("destroyed port %s on bridge %s", port->name, br->name);
2580 static struct port *
2581 port_lookup(const struct bridge *br, const char *name)
2585 HMAP_FOR_EACH_WITH_HASH (port, hmap_node, hash_string(name, 0),
2587 if (!strcmp(port->name, name)) {
2595 enable_lacp(struct port *port, bool *activep)
2597 if (!port->cfg->lacp) {
2598 /* XXX when LACP implementation has been sufficiently tested, enable by
2599 * default and make active on bonded ports. */
2601 } else if (!strcmp(port->cfg->lacp, "off")) {
2603 } else if (!strcmp(port->cfg->lacp, "active")) {
2606 } else if (!strcmp(port->cfg->lacp, "passive")) {
2610 VLOG_WARN("port %s: unknown LACP mode %s",
2611 port->name, port->cfg->lacp);
2616 static struct lacp_settings *
2617 port_configure_lacp(struct port *port, struct lacp_settings *s)
2619 const char *lacp_time, *system_id;
2620 long long int custom_time;
2623 if (!enable_lacp(port, &s->active)) {
2627 s->name = port->name;
2629 system_id = get_port_other_config(port->cfg, "lacp-system-id", NULL);
2631 || sscanf(system_id, ETH_ADDR_SCAN_FMT,
2632 ETH_ADDR_SCAN_ARGS(s->id)) != ETH_ADDR_SCAN_COUNT) {
2633 memcpy(s->id, port->bridge->ea, ETH_ADDR_LEN);
2636 /* Prefer bondable links if unspecified. */
2637 priority = atoi(get_port_other_config(port->cfg, "lacp-system-priority",
2639 s->priority = (priority > 0 && priority <= UINT16_MAX
2641 : UINT16_MAX - !list_is_short(&port->ifaces));
2643 s->heartbeat = !strcmp(get_port_other_config(port->cfg,
2648 lacp_time = get_port_other_config(port->cfg, "lacp-time", "slow");
2649 custom_time = atoi(lacp_time);
2650 if (!strcmp(lacp_time, "fast")) {
2651 s->lacp_time = LACP_TIME_FAST;
2652 } else if (!strcmp(lacp_time, "slow")) {
2653 s->lacp_time = LACP_TIME_SLOW;
2654 } else if (custom_time > 0) {
2655 s->lacp_time = LACP_TIME_CUSTOM;
2656 s->custom_time = custom_time;
2658 s->lacp_time = LACP_TIME_SLOW;
2665 iface_configure_lacp(struct iface *iface, struct lacp_slave_settings *s)
2667 int priority, portid, key;
2669 portid = atoi(get_interface_other_config(iface->cfg, "lacp-port-id", "0"));
2670 priority = atoi(get_interface_other_config(iface->cfg,
2671 "lacp-port-priority", "0"));
2672 key = atoi(get_interface_other_config(iface->cfg, "lacp-aggregation-key",
2675 if (portid <= 0 || portid > UINT16_MAX) {
2676 portid = iface->ofp_port;
2679 if (priority <= 0 || priority > UINT16_MAX) {
2680 priority = UINT16_MAX;
2683 if (key < 0 || key > UINT16_MAX) {
2687 s->name = iface->name;
2689 s->priority = priority;
2694 port_configure_bond(struct port *port, struct bond_settings *s,
2695 uint32_t *bond_stable_ids)
2697 const char *detect_s;
2698 struct iface *iface;
2699 int miimon_interval;
2702 s->name = port->name;
2703 s->balance = BM_SLB;
2704 if (port->cfg->bond_mode
2705 && !bond_mode_from_string(&s->balance, port->cfg->bond_mode)) {
2706 VLOG_WARN("port %s: unknown bond_mode %s, defaulting to %s",
2707 port->name, port->cfg->bond_mode,
2708 bond_mode_to_string(s->balance));
2710 if (s->balance == BM_SLB && port->bridge->cfg->n_flood_vlans) {
2711 VLOG_WARN("port %s: SLB bonds are incompatible with flood_vlans, "
2712 "please use another bond type or disable flood_vlans",
2716 miimon_interval = atoi(get_port_other_config(port->cfg,
2717 "bond-miimon-interval", "0"));
2718 if (miimon_interval <= 0) {
2719 miimon_interval = 200;
2722 detect_s = get_port_other_config(port->cfg, "bond-detect-mode", "carrier");
2723 if (!strcmp(detect_s, "carrier")) {
2724 miimon_interval = 0;
2725 } else if (strcmp(detect_s, "miimon")) {
2726 VLOG_WARN("port %s: unsupported bond-detect-mode %s, "
2727 "defaulting to carrier", port->name, detect_s);
2728 miimon_interval = 0;
2731 s->up_delay = MAX(0, port->cfg->bond_updelay);
2732 s->down_delay = MAX(0, port->cfg->bond_downdelay);
2733 s->basis = atoi(get_port_other_config(port->cfg, "bond-hash-basis", "0"));
2734 s->rebalance_interval = atoi(
2735 get_port_other_config(port->cfg, "bond-rebalance-interval", "10000"));
2736 if (s->rebalance_interval < 1000) {
2737 s->rebalance_interval = 1000;
2740 s->fake_iface = port->cfg->bond_fake_iface;
2743 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
2744 long long stable_id;
2746 stable_id = atoll(get_interface_other_config(iface->cfg,
2747 "bond-stable-id", "0"));
2748 if (stable_id <= 0 || stable_id >= UINT32_MAX) {
2749 stable_id = iface->ofp_port;
2751 bond_stable_ids[i++] = stable_id;
2753 netdev_set_miimon_interval(iface->netdev, miimon_interval);
2757 /* Returns true if 'port' is synthetic, that is, if we constructed it locally
2758 * instead of obtaining it from the database. */
2760 port_is_synthetic(const struct port *port)
2762 return ovsdb_idl_row_is_synthetic(&port->cfg->header_);
2765 /* Interface functions. */
2767 static struct iface *
2768 iface_create(struct port *port, const struct ovsrec_interface *if_cfg)
2770 struct bridge *br = port->bridge;
2771 struct iface *iface;
2772 char *name = if_cfg->name;
2774 iface = xzalloc(sizeof *iface);
2776 iface->name = xstrdup(name);
2777 iface->ofp_port = -1;
2778 iface->tag = tag_create_random();
2779 iface->netdev = NULL;
2780 iface->cfg = if_cfg;
2782 hmap_insert(&br->iface_by_name, &iface->name_node, hash_string(name, 0));
2784 list_push_back(&port->ifaces, &iface->port_elem);
2786 VLOG_DBG("attached network device %s to port %s", iface->name, port->name);
2792 iface_destroy(struct iface *iface)
2795 struct port *port = iface->port;
2796 struct bridge *br = port->bridge;
2798 if (br->ofproto && iface->ofp_port >= 0) {
2799 ofproto_port_unregister(br->ofproto, iface->ofp_port);
2802 if (iface->ofp_port >= 0) {
2803 hmap_remove(&br->ifaces, &iface->ofp_port_node);
2806 list_remove(&iface->port_elem);
2807 hmap_remove(&br->iface_by_name, &iface->name_node);
2809 netdev_close(iface->netdev);
2816 static struct iface *
2817 iface_lookup(const struct bridge *br, const char *name)
2819 struct iface *iface;
2821 HMAP_FOR_EACH_WITH_HASH (iface, name_node, hash_string(name, 0),
2822 &br->iface_by_name) {
2823 if (!strcmp(iface->name, name)) {
2831 static struct iface *
2832 iface_find(const char *name)
2834 const struct bridge *br;
2836 HMAP_FOR_EACH (br, node, &all_bridges) {
2837 struct iface *iface = iface_lookup(br, name);
2846 static struct iface *
2847 iface_from_ofp_port(const struct bridge *br, uint16_t ofp_port)
2849 struct iface *iface;
2851 HMAP_FOR_EACH_IN_BUCKET (iface, ofp_port_node,
2852 hash_int(ofp_port, 0), &br->ifaces) {
2853 if (iface->ofp_port == ofp_port) {
2860 /* Set Ethernet address of 'iface', if one is specified in the configuration
2863 iface_set_mac(struct iface *iface)
2865 uint8_t ea[ETH_ADDR_LEN];
2867 if (!strcmp(iface->type, "internal")
2868 && iface->cfg->mac && eth_addr_from_string(iface->cfg->mac, ea)) {
2869 if (iface->ofp_port == OFPP_LOCAL) {
2870 VLOG_ERR("interface %s: ignoring mac in Interface record "
2871 "(use Bridge record to set local port's mac)",
2873 } else if (eth_addr_is_multicast(ea)) {
2874 VLOG_ERR("interface %s: cannot set MAC to multicast address",
2877 int error = netdev_set_etheraddr(iface->netdev, ea);
2879 VLOG_ERR("interface %s: setting MAC failed (%s)",
2880 iface->name, strerror(error));
2886 /* Sets the ofport column of 'if_cfg' to 'ofport'. */
2888 iface_set_ofport(const struct ovsrec_interface *if_cfg, int64_t ofport)
2890 if (if_cfg && !ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
2891 ovsrec_interface_set_ofport(if_cfg, &ofport, 1);
2895 /* Clears all of the fields in 'if_cfg' that indicate interface status, and
2896 * sets the "ofport" field to -1.
2898 * This is appropriate when 'if_cfg''s interface cannot be created or is
2899 * otherwise invalid. */
2901 iface_clear_db_record(const struct ovsrec_interface *if_cfg)
2903 if (!ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
2904 iface_set_ofport(if_cfg, -1);
2905 ovsrec_interface_set_status(if_cfg, NULL, NULL, 0);
2906 ovsrec_interface_set_admin_state(if_cfg, NULL);
2907 ovsrec_interface_set_duplex(if_cfg, NULL);
2908 ovsrec_interface_set_link_speed(if_cfg, NULL, 0);
2909 ovsrec_interface_set_link_state(if_cfg, NULL);
2910 ovsrec_interface_set_mtu(if_cfg, NULL, 0);
2911 ovsrec_interface_set_cfm_fault(if_cfg, NULL, 0);
2912 ovsrec_interface_set_cfm_remote_mpids(if_cfg, NULL, 0);
2913 ovsrec_interface_set_lacp_current(if_cfg, NULL, 0);
2914 ovsrec_interface_set_statistics(if_cfg, NULL, NULL, 0);
2918 /* Adds the 'n' key-value pairs in 'keys' in 'values' to 'shash'.
2920 * The value strings in '*shash' are taken directly from values[], not copied,
2921 * so the caller should not modify or free them. */
2923 shash_from_ovs_idl_map(char **keys, char **values, size_t n,
2924 struct shash *shash)
2929 for (i = 0; i < n; i++) {
2930 shash_add(shash, keys[i], values[i]);
2934 /* Creates 'keys' and 'values' arrays from 'shash'.
2936 * Sets 'keys' and 'values' to heap allocated arrays representing the key-value
2937 * pairs in 'shash'. The caller takes ownership of 'keys' and 'values'. They
2938 * are populated with with strings taken directly from 'shash' and thus have
2939 * the same ownership of the key-value pairs in shash.
2942 shash_to_ovs_idl_map(struct shash *shash,
2943 char ***keys, char ***values, size_t *n)
2947 struct shash_node *sn;
2949 count = shash_count(shash);
2951 k = xmalloc(count * sizeof *k);
2952 v = xmalloc(count * sizeof *v);
2955 SHASH_FOR_EACH(sn, shash) {
2966 struct iface_delete_queues_cbdata {
2967 struct netdev *netdev;
2968 const struct ovsdb_datum *queues;
2972 queue_ids_include(const struct ovsdb_datum *queues, int64_t target)
2974 union ovsdb_atom atom;
2976 atom.integer = target;
2977 return ovsdb_datum_find_key(queues, &atom, OVSDB_TYPE_INTEGER) != UINT_MAX;
2981 iface_delete_queues(unsigned int queue_id,
2982 const struct shash *details OVS_UNUSED, void *cbdata_)
2984 struct iface_delete_queues_cbdata *cbdata = cbdata_;
2986 if (!queue_ids_include(cbdata->queues, queue_id)) {
2987 netdev_delete_queue(cbdata->netdev, queue_id);
2992 iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos)
2994 if (!qos || qos->type[0] == '\0' || qos->n_queues < 1) {
2995 netdev_set_qos(iface->netdev, NULL, NULL);
2997 struct iface_delete_queues_cbdata cbdata;
2998 struct shash details;
3002 /* Configure top-level Qos for 'iface'. */
3003 shash_from_ovs_idl_map(qos->key_other_config, qos->value_other_config,
3004 qos->n_other_config, &details);
3005 netdev_set_qos(iface->netdev, qos->type, &details);
3006 shash_destroy(&details);
3008 /* Deconfigure queues that were deleted. */
3009 cbdata.netdev = iface->netdev;
3010 cbdata.queues = ovsrec_qos_get_queues(qos, OVSDB_TYPE_INTEGER,
3012 netdev_dump_queues(iface->netdev, iface_delete_queues, &cbdata);
3014 /* Configure queues for 'iface'. */
3016 for (i = 0; i < qos->n_queues; i++) {
3017 const struct ovsrec_queue *queue = qos->value_queues[i];
3018 unsigned int queue_id = qos->key_queues[i];
3020 if (queue_id == 0) {
3024 shash_from_ovs_idl_map(queue->key_other_config,
3025 queue->value_other_config,
3026 queue->n_other_config, &details);
3027 netdev_set_queue(iface->netdev, queue_id, &details);
3028 shash_destroy(&details);
3031 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
3032 VLOG_WARN_RL(&rl, "interface %s: QoS configured without a default "
3033 "queue (queue 0). Packets not directed to a "
3034 "correctly configured queue may be dropped.",
3039 netdev_set_policing(iface->netdev,
3040 iface->cfg->ingress_policing_rate,
3041 iface->cfg->ingress_policing_burst);
3045 iface_configure_cfm(struct iface *iface)
3047 const struct ovsrec_interface *cfg = iface->cfg;
3048 const char *extended_str, *opstate_str;
3049 struct cfm_settings s;
3051 if (!cfg->n_cfm_mpid) {
3052 ofproto_port_clear_cfm(iface->port->bridge->ofproto, iface->ofp_port);
3056 s.mpid = *cfg->cfm_mpid;
3057 s.interval = atoi(get_interface_other_config(iface->cfg, "cfm_interval",
3059 if (s.interval <= 0) {
3063 extended_str = get_interface_other_config(iface->cfg, "cfm_extended",
3065 s.extended = !strcasecmp("true", extended_str);
3067 opstate_str = get_interface_other_config(iface->cfg, "cfm_opstate", "up");
3068 s.opup = !strcasecmp("up", opstate_str);
3070 ofproto_port_set_cfm(iface->port->bridge->ofproto, iface->ofp_port, &s);
3073 /* Returns true if 'iface' is synthetic, that is, if we constructed it locally
3074 * instead of obtaining it from the database. */
3076 iface_is_synthetic(const struct iface *iface)
3078 return ovsdb_idl_row_is_synthetic(&iface->cfg->header_);
3081 /* Port mirroring. */
3083 static struct mirror *
3084 mirror_find_by_uuid(struct bridge *br, const struct uuid *uuid)
3088 HMAP_FOR_EACH_IN_BUCKET (m, hmap_node, uuid_hash(uuid), &br->mirrors) {
3089 if (uuid_equals(uuid, &m->uuid)) {
3097 bridge_configure_mirrors(struct bridge *br)
3099 const struct ovsdb_datum *mc;
3100 unsigned long *flood_vlans;
3101 struct mirror *m, *next;
3104 /* Get rid of deleted mirrors. */
3105 mc = ovsrec_bridge_get_mirrors(br->cfg, OVSDB_TYPE_UUID);
3106 HMAP_FOR_EACH_SAFE (m, next, hmap_node, &br->mirrors) {
3107 union ovsdb_atom atom;
3109 atom.uuid = m->uuid;
3110 if (ovsdb_datum_find_key(mc, &atom, OVSDB_TYPE_UUID) == UINT_MAX) {
3115 /* Add new mirrors and reconfigure existing ones. */
3116 for (i = 0; i < br->cfg->n_mirrors; i++) {
3117 const struct ovsrec_mirror *cfg = br->cfg->mirrors[i];
3118 struct mirror *m = mirror_find_by_uuid(br, &cfg->header_.uuid);
3120 m = mirror_create(br, cfg);
3122 if (!mirror_configure(m, cfg)) {
3127 /* Update flooded vlans (for RSPAN). */
3128 flood_vlans = vlan_bitmap_from_array(br->cfg->flood_vlans,
3129 br->cfg->n_flood_vlans);
3130 ofproto_set_flood_vlans(br->ofproto, flood_vlans);
3131 bitmap_free(flood_vlans);
3134 static struct mirror *
3135 mirror_create(struct bridge *br, const struct ovsrec_mirror *cfg)
3139 m = xzalloc(sizeof *m);
3140 m->uuid = cfg->header_.uuid;
3141 hmap_insert(&br->mirrors, &m->hmap_node, uuid_hash(&m->uuid));
3143 m->name = xstrdup(cfg->name);
3149 mirror_destroy(struct mirror *m)
3152 struct bridge *br = m->bridge;
3155 ofproto_mirror_unregister(br->ofproto, m);
3158 hmap_remove(&br->mirrors, &m->hmap_node);
3165 mirror_collect_ports(struct mirror *m,
3166 struct ovsrec_port **in_ports, int n_in_ports,
3167 void ***out_portsp, size_t *n_out_portsp)
3169 void **out_ports = xmalloc(n_in_ports * sizeof *out_ports);
3170 size_t n_out_ports = 0;
3173 for (i = 0; i < n_in_ports; i++) {
3174 const char *name = in_ports[i]->name;
3175 struct port *port = port_lookup(m->bridge, name);
3177 out_ports[n_out_ports++] = port;
3179 VLOG_WARN("bridge %s: mirror %s cannot match on nonexistent "
3180 "port %s", m->bridge->name, m->name, name);
3183 *out_portsp = out_ports;
3184 *n_out_portsp = n_out_ports;
3188 mirror_configure(struct mirror *m, const struct ovsrec_mirror *cfg)
3190 struct ofproto_mirror_settings s;
3193 if (strcmp(cfg->name, m->name)) {
3195 m->name = xstrdup(cfg->name);
3199 /* Get output port or VLAN. */
3200 if (cfg->output_port) {
3201 s.out_bundle = port_lookup(m->bridge, cfg->output_port->name);
3202 if (!s.out_bundle) {
3203 VLOG_ERR("bridge %s: mirror %s outputs to port not on bridge",
3204 m->bridge->name, m->name);
3207 s.out_vlan = UINT16_MAX;
3209 if (cfg->output_vlan) {
3210 VLOG_ERR("bridge %s: mirror %s specifies both output port and "
3211 "output vlan; ignoring output vlan",
3212 m->bridge->name, m->name);
3214 } else if (cfg->output_vlan) {
3215 /* The database should prevent invalid VLAN values. */
3216 s.out_bundle = NULL;
3217 s.out_vlan = *cfg->output_vlan;
3219 VLOG_ERR("bridge %s: mirror %s does not specify output; ignoring",
3220 m->bridge->name, m->name);
3224 /* Get port selection. */
3225 if (cfg->select_all) {
3226 size_t n_ports = hmap_count(&m->bridge->ports);
3227 void **ports = xmalloc(n_ports * sizeof *ports);
3232 HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) {
3242 /* Get ports, dropping ports that don't exist.
3243 * The IDL ensures that there are no duplicates. */
3244 mirror_collect_ports(m, cfg->select_src_port, cfg->n_select_src_port,
3245 &s.srcs, &s.n_srcs);
3246 mirror_collect_ports(m, cfg->select_dst_port, cfg->n_select_dst_port,
3247 &s.dsts, &s.n_dsts);
3250 /* Get VLAN selection. */
3251 s.src_vlans = vlan_bitmap_from_array(cfg->select_vlan, cfg->n_select_vlan);
3254 ofproto_mirror_register(m->bridge->ofproto, m, &s);
3257 if (s.srcs != s.dsts) {