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;
508 if (cfg->tag && *cfg->tag >= 0 && *cfg->tag <= 4095) {
512 /* Get VLAN trunks. */
515 s.trunks = vlan_bitmap_from_array(cfg->trunks, cfg->n_trunks);
519 if (cfg->vlan_mode) {
520 if (!strcmp(cfg->vlan_mode, "access")) {
521 s.vlan_mode = PORT_VLAN_ACCESS;
522 } else if (!strcmp(cfg->vlan_mode, "trunk")) {
523 s.vlan_mode = PORT_VLAN_TRUNK;
524 } else if (!strcmp(cfg->vlan_mode, "native-tagged")) {
525 s.vlan_mode = PORT_VLAN_NATIVE_TAGGED;
526 } else if (!strcmp(cfg->vlan_mode, "native-untagged")) {
527 s.vlan_mode = PORT_VLAN_NATIVE_UNTAGGED;
529 /* This "can't happen" because ovsdb-server should prevent it. */
530 VLOG_ERR("unknown VLAN mode %s", cfg->vlan_mode);
531 s.vlan_mode = PORT_VLAN_TRUNK;
535 s.vlan_mode = PORT_VLAN_ACCESS;
537 VLOG_ERR("port %s: ignoring trunks in favor of implicit vlan",
541 s.vlan_mode = PORT_VLAN_TRUNK;
545 /* Get LACP settings. */
546 s.lacp = port_configure_lacp(port, &lacp_settings);
550 s.lacp_slaves = xmalloc(s.n_slaves * sizeof *s.lacp_slaves);
551 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
552 iface_configure_lacp(iface, &s.lacp_slaves[i++]);
555 s.lacp_slaves = NULL;
558 /* Get bond settings. */
559 if (s.n_slaves > 1) {
560 s.bond = &bond_settings;
561 s.bond_stable_ids = xmalloc(s.n_slaves * sizeof *s.bond_stable_ids);
562 port_configure_bond(port, &bond_settings, s.bond_stable_ids);
565 s.bond_stable_ids = NULL;
567 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
568 netdev_set_miimon_interval(iface->netdev, 0);
573 ofproto_bundle_register(port->bridge->ofproto, port, &s);
579 free(s.bond_stable_ids);
582 /* Pick local port hardware address and datapath ID for 'br'. */
584 bridge_configure_datapath_id(struct bridge *br)
586 uint8_t ea[ETH_ADDR_LEN];
588 struct iface *local_iface;
589 struct iface *hw_addr_iface;
592 bridge_pick_local_hw_addr(br, ea, &hw_addr_iface);
593 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
595 int error = netdev_set_etheraddr(local_iface->netdev, ea);
597 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
598 VLOG_ERR_RL(&rl, "bridge %s: failed to set bridge "
599 "Ethernet address: %s",
600 br->name, strerror(error));
603 memcpy(br->ea, ea, ETH_ADDR_LEN);
605 dpid = bridge_pick_datapath_id(br, ea, hw_addr_iface);
606 ofproto_set_datapath_id(br->ofproto, dpid);
608 dpid_string = xasprintf("%016"PRIx64, dpid);
609 ovsrec_bridge_set_datapath_id(br->cfg, dpid_string);
613 /* Set NetFlow configuration on 'br'. */
615 bridge_configure_netflow(struct bridge *br)
617 struct ovsrec_netflow *cfg = br->cfg->netflow;
618 struct netflow_options opts;
621 ofproto_set_netflow(br->ofproto, NULL);
625 memset(&opts, 0, sizeof opts);
627 /* Get default NetFlow configuration from datapath.
628 * Apply overrides from 'cfg'. */
629 ofproto_get_netflow_ids(br->ofproto, &opts.engine_type, &opts.engine_id);
630 if (cfg->engine_type) {
631 opts.engine_type = *cfg->engine_type;
633 if (cfg->engine_id) {
634 opts.engine_id = *cfg->engine_id;
637 /* Configure active timeout interval. */
638 opts.active_timeout = cfg->active_timeout;
639 if (!opts.active_timeout) {
640 opts.active_timeout = -1;
641 } else if (opts.active_timeout < 0) {
642 VLOG_WARN("bridge %s: active timeout interval set to negative "
643 "value, using default instead (%d seconds)", br->name,
644 NF_ACTIVE_TIMEOUT_DEFAULT);
645 opts.active_timeout = -1;
648 /* Add engine ID to interface number to disambiguate bridgs? */
649 opts.add_id_to_iface = cfg->add_id_to_interface;
650 if (opts.add_id_to_iface) {
651 if (opts.engine_id > 0x7f) {
652 VLOG_WARN("bridge %s: NetFlow port mangling may conflict with "
653 "another vswitch, choose an engine id less than 128",
656 if (hmap_count(&br->ports) > 508) {
657 VLOG_WARN("bridge %s: NetFlow port mangling will conflict with "
658 "another port when more than 508 ports are used",
664 sset_init(&opts.collectors);
665 sset_add_array(&opts.collectors, cfg->targets, cfg->n_targets);
668 if (ofproto_set_netflow(br->ofproto, &opts)) {
669 VLOG_ERR("bridge %s: problem setting netflow collectors", br->name);
671 sset_destroy(&opts.collectors);
674 /* Set sFlow configuration on 'br'. */
676 bridge_configure_sflow(struct bridge *br, int *sflow_bridge_number)
678 const struct ovsrec_sflow *cfg = br->cfg->sflow;
679 struct ovsrec_controller **controllers;
680 struct ofproto_sflow_options oso;
681 size_t n_controllers;
685 ofproto_set_sflow(br->ofproto, NULL);
689 memset(&oso, 0, sizeof oso);
691 sset_init(&oso.targets);
692 sset_add_array(&oso.targets, cfg->targets, cfg->n_targets);
694 oso.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
696 oso.sampling_rate = *cfg->sampling;
699 oso.polling_interval = SFL_DEFAULT_POLLING_INTERVAL;
701 oso.polling_interval = *cfg->polling;
704 oso.header_len = SFL_DEFAULT_HEADER_SIZE;
706 oso.header_len = *cfg->header;
709 oso.sub_id = (*sflow_bridge_number)++;
710 oso.agent_device = cfg->agent;
712 oso.control_ip = NULL;
713 n_controllers = bridge_get_controllers(br, &controllers);
714 for (i = 0; i < n_controllers; i++) {
715 if (controllers[i]->local_ip) {
716 oso.control_ip = controllers[i]->local_ip;
720 ofproto_set_sflow(br->ofproto, &oso);
722 sset_destroy(&oso.targets);
726 port_configure_stp(const struct ofproto *ofproto, struct port *port,
727 struct ofproto_port_stp_settings *port_s,
728 int *port_num_counter, unsigned long *port_num_bitmap)
730 const char *config_str;
733 config_str = get_port_other_config(port->cfg, "stp-enable", NULL);
734 if (config_str && !strcmp(config_str, "false")) {
735 port_s->enable = false;
738 port_s->enable = true;
741 /* STP over bonds is not supported. */
742 if (!list_is_singleton(&port->ifaces)) {
743 VLOG_ERR("port %s: cannot enable STP on bonds, disabling",
745 port_s->enable = false;
749 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
751 /* Internal ports shouldn't participate in spanning tree, so
753 if (!strcmp(iface->type, "internal")) {
754 VLOG_DBG("port %s: disable STP on internal ports", port->name);
755 port_s->enable = false;
759 /* STP on mirror output ports is not supported. */
760 if (ofproto_is_mirror_output_bundle(ofproto, port)) {
761 VLOG_DBG("port %s: disable STP on mirror ports", port->name);
762 port_s->enable = false;
766 config_str = get_port_other_config(port->cfg, "stp-port-num", NULL);
768 unsigned long int port_num = strtoul(config_str, NULL, 0);
769 int port_idx = port_num - 1;
771 if (port_num < 1 || port_num > STP_MAX_PORTS) {
772 VLOG_ERR("port %s: invalid stp-port-num", port->name);
773 port_s->enable = false;
777 if (bitmap_is_set(port_num_bitmap, port_idx)) {
778 VLOG_ERR("port %s: duplicate stp-port-num %lu, disabling",
779 port->name, port_num);
780 port_s->enable = false;
783 bitmap_set1(port_num_bitmap, port_idx);
784 port_s->port_num = port_idx;
786 if (*port_num_counter > STP_MAX_PORTS) {
787 VLOG_ERR("port %s: too many STP ports, disabling", port->name);
788 port_s->enable = false;
792 port_s->port_num = (*port_num_counter)++;
795 config_str = get_port_other_config(port->cfg, "stp-path-cost", NULL);
797 port_s->path_cost = strtoul(config_str, NULL, 10);
801 if (netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL)) {
802 /* Couldn't get speed, so assume 100Mb/s. */
803 port_s->path_cost = 19;
807 mbps = netdev_features_to_bps(current) / 1000000;
808 port_s->path_cost = stp_convert_speed_to_cost(mbps);
812 config_str = get_port_other_config(port->cfg, "stp-port-priority", NULL);
814 port_s->priority = strtoul(config_str, NULL, 0);
816 port_s->priority = STP_DEFAULT_PORT_PRIORITY;
820 /* Set spanning tree configuration on 'br'. */
822 bridge_configure_stp(struct bridge *br)
824 if (!br->cfg->stp_enable) {
825 ofproto_set_stp(br->ofproto, NULL);
827 struct ofproto_stp_settings br_s;
828 const char *config_str;
830 int port_num_counter;
831 unsigned long *port_num_bitmap;
833 config_str = bridge_get_other_config(br->cfg, "stp-system-id");
835 uint8_t ea[ETH_ADDR_LEN];
837 if (eth_addr_from_string(config_str, ea)) {
838 br_s.system_id = eth_addr_to_uint64(ea);
840 br_s.system_id = eth_addr_to_uint64(br->ea);
841 VLOG_ERR("bridge %s: invalid stp-system-id, defaulting "
842 "to "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(br->ea));
845 br_s.system_id = eth_addr_to_uint64(br->ea);
848 config_str = bridge_get_other_config(br->cfg, "stp-priority");
850 br_s.priority = strtoul(config_str, NULL, 0);
852 br_s.priority = STP_DEFAULT_BRIDGE_PRIORITY;
855 config_str = bridge_get_other_config(br->cfg, "stp-hello-time");
857 br_s.hello_time = strtoul(config_str, NULL, 10) * 1000;
859 br_s.hello_time = STP_DEFAULT_HELLO_TIME;
862 config_str = bridge_get_other_config(br->cfg, "stp-max-age");
864 br_s.max_age = strtoul(config_str, NULL, 10) * 1000;
866 br_s.max_age = STP_DEFAULT_MAX_AGE;
869 config_str = bridge_get_other_config(br->cfg, "stp-forward-delay");
871 br_s.fwd_delay = strtoul(config_str, NULL, 10) * 1000;
873 br_s.fwd_delay = STP_DEFAULT_FWD_DELAY;
876 /* Configure STP on the bridge. */
877 if (ofproto_set_stp(br->ofproto, &br_s)) {
878 VLOG_ERR("bridge %s: could not enable STP", br->name);
882 /* Users must either set the port number with the "stp-port-num"
883 * configuration on all ports or none. If manual configuration
884 * is not done, then we allocate them sequentially. */
885 port_num_counter = 0;
886 port_num_bitmap = bitmap_allocate(STP_MAX_PORTS);
887 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
888 struct ofproto_port_stp_settings port_s;
891 port_configure_stp(br->ofproto, port, &port_s,
892 &port_num_counter, port_num_bitmap);
894 /* As bonds are not supported, just apply configuration to
896 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
897 if (ofproto_port_set_stp(br->ofproto, iface->ofp_port,
899 VLOG_ERR("port %s: could not enable STP", port->name);
905 if (bitmap_scan(port_num_bitmap, 0, STP_MAX_PORTS) != STP_MAX_PORTS
906 && port_num_counter) {
907 VLOG_ERR("bridge %s: must manually configure all STP port "
908 "IDs or none, disabling", br->name);
909 ofproto_set_stp(br->ofproto, NULL);
911 bitmap_free(port_num_bitmap);
916 bridge_has_bond_fake_iface(const struct bridge *br, const char *name)
918 const struct port *port = port_lookup(br, name);
919 return port && port_is_bond_fake_iface(port);
923 port_is_bond_fake_iface(const struct port *port)
925 return port->cfg->bond_fake_iface && !list_is_short(&port->ifaces);
929 add_del_bridges(const struct ovsrec_open_vswitch *cfg)
931 struct bridge *br, *next;
935 /* Collect new bridges' names and types. */
937 for (i = 0; i < cfg->n_bridges; i++) {
938 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
939 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
941 if (strchr(br_cfg->name, '/')) {
942 /* Prevent remote ovsdb-server users from accessing arbitrary
943 * directories, e.g. consider a bridge named "../../../etc/". */
944 VLOG_WARN_RL(&rl, "ignoring bridge with invalid name \"%s\"",
946 } else if (!shash_add_once(&new_br, br_cfg->name, br_cfg)) {
947 VLOG_WARN_RL(&rl, "bridge %s specified twice", br_cfg->name);
951 /* Get rid of deleted bridges or those whose types have changed.
952 * Update 'cfg' of bridges that still exist. */
953 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
954 br->cfg = shash_find_data(&new_br, br->name);
955 if (!br->cfg || strcmp(br->type, ofproto_normalize_type(
956 br->cfg->datapath_type))) {
961 /* Add new bridges. */
962 for (i = 0; i < cfg->n_bridges; i++) {
963 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
964 struct bridge *br = bridge_lookup(br_cfg->name);
966 bridge_create(br_cfg);
970 shash_destroy(&new_br);
973 /* Delete each ofproto port on 'br' that doesn't have a corresponding "struct
976 * The kernel will reject any attempt to add a given port to a datapath if that
977 * port already belongs to a different datapath, so we must do all port
978 * deletions before any port additions. */
980 bridge_del_ofproto_ports(struct bridge *br)
982 struct ofproto_port_dump dump;
983 struct ofproto_port ofproto_port;
985 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
986 const char *name = ofproto_port.name;
991 /* Ignore the local port. We can't change it anyhow. */
992 if (!strcmp(name, br->name)) {
996 /* Get the type that 'ofproto_port' should have (ordinarily the
997 * type of its corresponding iface) or NULL if it should be
999 iface = iface_lookup(br, name);
1000 type = (iface ? iface->type
1001 : bridge_has_bond_fake_iface(br, name) ? "internal"
1004 /* If it's the wrong type then delete the ofproto port. */
1006 && !strcmp(ofproto_port.type, type)
1007 && (!iface || !iface->netdev
1008 || !strcmp(netdev_get_type(iface->netdev), type))) {
1011 error = ofproto_port_del(br->ofproto, ofproto_port.ofp_port);
1013 VLOG_WARN("bridge %s: failed to remove %s interface (%s)",
1014 br->name, name, strerror(error));
1017 netdev_close(iface->netdev);
1018 iface->netdev = NULL;
1024 iface_set_ofp_port(struct iface *iface, int ofp_port)
1026 struct bridge *br = iface->port->bridge;
1028 assert(iface->ofp_port < 0 && ofp_port >= 0);
1029 iface->ofp_port = ofp_port;
1030 hmap_insert(&br->ifaces, &iface->ofp_port_node, hash_int(ofp_port, 0));
1031 iface_set_ofport(iface->cfg, ofp_port);
1035 bridge_refresh_ofp_port(struct bridge *br)
1037 struct ofproto_port_dump dump;
1038 struct ofproto_port ofproto_port;
1041 /* Clear all the "ofp_port"es. */
1042 hmap_clear(&br->ifaces);
1043 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1044 struct iface *iface;
1046 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1047 iface->ofp_port = -1;
1051 /* Obtain the correct "ofp_port"s from ofproto. */
1052 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
1053 struct iface *iface = iface_lookup(br, ofproto_port.name);
1055 if (iface->ofp_port >= 0) {
1056 VLOG_WARN("bridge %s: interface %s reported twice",
1057 br->name, ofproto_port.name);
1058 } else if (iface_from_ofp_port(br, ofproto_port.ofp_port)) {
1059 VLOG_WARN("bridge %s: interface %"PRIu16" reported twice",
1060 br->name, ofproto_port.ofp_port);
1062 iface_set_ofp_port(iface, ofproto_port.ofp_port);
1068 /* Add an ofproto port for any "struct iface" that doesn't have one.
1069 * Delete any "struct iface" for which this fails.
1070 * Delete any "struct port" that thereby ends up with no ifaces. */
1072 bridge_add_ofproto_ports(struct bridge *br)
1074 struct port *port, *next_port;
1076 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
1077 struct iface *iface, *next_iface;
1078 struct ofproto_port ofproto_port;
1080 LIST_FOR_EACH_SAFE (iface, next_iface, port_elem, &port->ifaces) {
1083 /* Open the netdev. */
1084 if (!iface->netdev) {
1085 error = netdev_open(iface->name, iface->type, &iface->netdev);
1087 VLOG_WARN("could not open network device %s (%s)",
1088 iface->name, strerror(error));
1094 /* Configure the netdev. */
1095 if (iface->netdev) {
1099 shash_from_ovs_idl_map(iface->cfg->key_options,
1100 iface->cfg->value_options,
1101 iface->cfg->n_options, &args);
1102 error = netdev_set_config(iface->netdev, &args);
1103 shash_destroy(&args);
1106 VLOG_WARN("could not configure network device %s (%s)",
1107 iface->name, strerror(error));
1108 netdev_close(iface->netdev);
1109 iface->netdev = NULL;
1113 /* Add the port, if necessary. */
1114 if (iface->netdev && iface->ofp_port < 0) {
1118 error = ofproto_port_add(br->ofproto, iface->netdev,
1121 iface_set_ofp_port(iface, ofp_port);
1123 netdev_close(iface->netdev);
1124 iface->netdev = NULL;
1128 /* Populate stats columns in new Interface rows. */
1129 if (iface->netdev && !iface->cfg->mtu) {
1130 iface_refresh_stats(iface);
1131 iface_refresh_status(iface);
1134 /* Delete the iface if we failed. */
1135 if (iface->netdev && iface->ofp_port >= 0) {
1136 VLOG_DBG("bridge %s: interface %s is on port %d",
1137 br->name, iface->name, iface->ofp_port);
1139 if (iface->netdev) {
1140 VLOG_ERR("bridge %s: missing %s interface, dropping",
1141 br->name, iface->name);
1143 /* We already reported a related error, don't bother
1144 * duplicating it. */
1146 iface_clear_db_record(iface->cfg);
1147 iface_destroy(iface);
1150 if (list_is_empty(&port->ifaces)) {
1151 VLOG_WARN("%s port has no interfaces, dropping", port->name);
1156 /* Add bond fake iface if necessary. */
1157 if (port_is_bond_fake_iface(port)) {
1158 if (ofproto_port_query_by_name(br->ofproto, port->name,
1160 struct netdev *netdev;
1163 error = netdev_open(port->name, "internal", &netdev);
1165 ofproto_port_add(br->ofproto, netdev, NULL);
1166 netdev_close(netdev);
1168 VLOG_WARN("could not open network device %s (%s)",
1169 port->name, strerror(error));
1172 /* Already exists, nothing to do. */
1173 ofproto_port_destroy(&ofproto_port);
1180 get_ovsrec_key_value(const struct ovsdb_idl_row *row,
1181 const struct ovsdb_idl_column *column,
1184 const struct ovsdb_datum *datum;
1185 union ovsdb_atom atom;
1188 datum = ovsdb_idl_get(row, column, OVSDB_TYPE_STRING, OVSDB_TYPE_STRING);
1189 atom.string = (char *) key;
1190 idx = ovsdb_datum_find_key(datum, &atom, OVSDB_TYPE_STRING);
1191 return idx == UINT_MAX ? NULL : datum->values[idx].string;
1195 bridge_get_other_config(const struct ovsrec_bridge *br_cfg, const char *key)
1197 return get_ovsrec_key_value(&br_cfg->header_,
1198 &ovsrec_bridge_col_other_config, key);
1201 /* Set Flow eviction threshold */
1203 bridge_configure_flow_eviction_threshold(struct bridge *br)
1205 const char *threshold_str;
1208 threshold_str = bridge_get_other_config(br->cfg, "flow-eviction-threshold");
1209 if (threshold_str) {
1210 threshold = strtoul(threshold_str, NULL, 10);
1212 threshold = OFPROTO_FLOW_EVICTON_THRESHOLD_DEFAULT;
1214 ofproto_set_flow_eviction_threshold(br->ofproto, threshold);
1217 /* Set forward BPDU option. */
1219 bridge_configure_forward_bpdu(struct bridge *br)
1221 const char *forward_bpdu_str;
1222 bool forward_bpdu = false;
1224 forward_bpdu_str = bridge_get_other_config(br->cfg, "forward-bpdu");
1225 if (forward_bpdu_str && !strcmp(forward_bpdu_str, "true")) {
1226 forward_bpdu = true;
1228 ofproto_set_forward_bpdu(br->ofproto, forward_bpdu);
1232 bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
1233 struct iface **hw_addr_iface)
1235 struct hmapx mirror_output_ports;
1238 bool found_addr = false;
1242 *hw_addr_iface = NULL;
1244 /* Did the user request a particular MAC? */
1245 hwaddr = bridge_get_other_config(br->cfg, "hwaddr");
1246 if (hwaddr && eth_addr_from_string(hwaddr, ea)) {
1247 if (eth_addr_is_multicast(ea)) {
1248 VLOG_ERR("bridge %s: cannot set MAC address to multicast "
1249 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1250 } else if (eth_addr_is_zero(ea)) {
1251 VLOG_ERR("bridge %s: cannot set MAC address to zero", br->name);
1257 /* Mirror output ports don't participate in picking the local hardware
1258 * address. ofproto can't help us find out whether a given port is a
1259 * mirror output because we haven't configured mirrors yet, so we need to
1260 * accumulate them ourselves. */
1261 hmapx_init(&mirror_output_ports);
1262 for (i = 0; i < br->cfg->n_mirrors; i++) {
1263 struct ovsrec_mirror *m = br->cfg->mirrors[i];
1264 if (m->output_port) {
1265 hmapx_add(&mirror_output_ports, m->output_port);
1269 /* Otherwise choose the minimum non-local MAC address among all of the
1271 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1272 uint8_t iface_ea[ETH_ADDR_LEN];
1273 struct iface *candidate;
1274 struct iface *iface;
1276 /* Mirror output ports don't participate. */
1277 if (hmapx_contains(&mirror_output_ports, port->cfg)) {
1281 /* Choose the MAC address to represent the port. */
1283 if (port->cfg->mac && eth_addr_from_string(port->cfg->mac, iface_ea)) {
1284 /* Find the interface with this Ethernet address (if any) so that
1285 * we can provide the correct devname to the caller. */
1286 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1287 uint8_t candidate_ea[ETH_ADDR_LEN];
1288 if (!netdev_get_etheraddr(candidate->netdev, candidate_ea)
1289 && eth_addr_equals(iface_ea, candidate_ea)) {
1294 /* Choose the interface whose MAC address will represent the port.
1295 * The Linux kernel bonding code always chooses the MAC address of
1296 * the first slave added to a bond, and the Fedora networking
1297 * scripts always add slaves to a bond in alphabetical order, so
1298 * for compatibility we choose the interface with the name that is
1299 * first in alphabetical order. */
1300 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1301 if (!iface || strcmp(candidate->name, iface->name) < 0) {
1306 /* The local port doesn't count (since we're trying to choose its
1307 * MAC address anyway). */
1308 if (iface->ofp_port == OFPP_LOCAL) {
1313 error = netdev_get_etheraddr(iface->netdev, iface_ea);
1319 /* Compare against our current choice. */
1320 if (!eth_addr_is_multicast(iface_ea) &&
1321 !eth_addr_is_local(iface_ea) &&
1322 !eth_addr_is_reserved(iface_ea) &&
1323 !eth_addr_is_zero(iface_ea) &&
1324 (!found_addr || eth_addr_compare_3way(iface_ea, ea) < 0))
1326 memcpy(ea, iface_ea, ETH_ADDR_LEN);
1327 *hw_addr_iface = iface;
1332 VLOG_DBG("bridge %s: using bridge Ethernet address "ETH_ADDR_FMT,
1333 br->name, ETH_ADDR_ARGS(ea));
1335 memcpy(ea, br->default_ea, ETH_ADDR_LEN);
1336 *hw_addr_iface = NULL;
1337 VLOG_WARN("bridge %s: using default bridge Ethernet "
1338 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1341 hmapx_destroy(&mirror_output_ports);
1344 /* Choose and returns the datapath ID for bridge 'br' given that the bridge
1345 * Ethernet address is 'bridge_ea'. If 'bridge_ea' is the Ethernet address of
1346 * an interface on 'br', then that interface must be passed in as
1347 * 'hw_addr_iface'; if 'bridge_ea' was derived some other way, then
1348 * 'hw_addr_iface' must be passed in as a null pointer. */
1350 bridge_pick_datapath_id(struct bridge *br,
1351 const uint8_t bridge_ea[ETH_ADDR_LEN],
1352 struct iface *hw_addr_iface)
1355 * The procedure for choosing a bridge MAC address will, in the most
1356 * ordinary case, also choose a unique MAC that we can use as a datapath
1357 * ID. In some special cases, though, multiple bridges will end up with
1358 * the same MAC address. This is OK for the bridges, but it will confuse
1359 * the OpenFlow controller, because each datapath needs a unique datapath
1362 * Datapath IDs must be unique. It is also very desirable that they be
1363 * stable from one run to the next, so that policy set on a datapath
1366 const char *datapath_id;
1369 datapath_id = bridge_get_other_config(br->cfg, "datapath-id");
1370 if (datapath_id && dpid_from_string(datapath_id, &dpid)) {
1374 if (hw_addr_iface) {
1376 if (!netdev_get_vlan_vid(hw_addr_iface->netdev, &vlan)) {
1378 * A bridge whose MAC address is taken from a VLAN network device
1379 * (that is, a network device created with vconfig(8) or similar
1380 * tool) will have the same MAC address as a bridge on the VLAN
1381 * device's physical network device.
1383 * Handle this case by hashing the physical network device MAC
1384 * along with the VLAN identifier.
1386 uint8_t buf[ETH_ADDR_LEN + 2];
1387 memcpy(buf, bridge_ea, ETH_ADDR_LEN);
1388 buf[ETH_ADDR_LEN] = vlan >> 8;
1389 buf[ETH_ADDR_LEN + 1] = vlan;
1390 return dpid_from_hash(buf, sizeof buf);
1393 * Assume that this bridge's MAC address is unique, since it
1394 * doesn't fit any of the cases we handle specially.
1399 * A purely internal bridge, that is, one that has no non-virtual
1400 * network devices on it at all, is more difficult because it has no
1401 * natural unique identifier at all.
1403 * When the host is a XenServer, we handle this case by hashing the
1404 * host's UUID with the name of the bridge. Names of bridges are
1405 * persistent across XenServer reboots, although they can be reused if
1406 * an internal network is destroyed and then a new one is later
1407 * created, so this is fairly effective.
1409 * When the host is not a XenServer, we punt by using a random MAC
1410 * address on each run.
1412 const char *host_uuid = xenserver_get_host_uuid();
1414 char *combined = xasprintf("%s,%s", host_uuid, br->name);
1415 dpid = dpid_from_hash(combined, strlen(combined));
1421 return eth_addr_to_uint64(bridge_ea);
1425 dpid_from_hash(const void *data, size_t n)
1427 uint8_t hash[SHA1_DIGEST_SIZE];
1429 BUILD_ASSERT_DECL(sizeof hash >= ETH_ADDR_LEN);
1430 sha1_bytes(data, n, hash);
1431 eth_addr_mark_random(hash);
1432 return eth_addr_to_uint64(hash);
1436 iface_refresh_status(struct iface *iface)
1440 enum netdev_flags flags;
1447 if (iface_is_synthetic(iface)) {
1453 if (!netdev_get_status(iface->netdev, &sh)) {
1455 char **keys, **values;
1457 shash_to_ovs_idl_map(&sh, &keys, &values, &n);
1458 ovsrec_interface_set_status(iface->cfg, keys, values, n);
1463 ovsrec_interface_set_status(iface->cfg, NULL, NULL, 0);
1466 shash_destroy_free_data(&sh);
1468 error = netdev_get_flags(iface->netdev, &flags);
1470 ovsrec_interface_set_admin_state(iface->cfg, flags & NETDEV_UP ? "up" : "down");
1473 ovsrec_interface_set_admin_state(iface->cfg, NULL);
1476 error = netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
1478 ovsrec_interface_set_duplex(iface->cfg,
1479 netdev_features_is_full_duplex(current)
1481 /* warning: uint64_t -> int64_t conversion */
1482 bps = netdev_features_to_bps(current);
1483 ovsrec_interface_set_link_speed(iface->cfg, &bps, 1);
1486 ovsrec_interface_set_duplex(iface->cfg, NULL);
1487 ovsrec_interface_set_link_speed(iface->cfg, NULL, 0);
1490 error = netdev_get_mtu(iface->netdev, &mtu);
1493 ovsrec_interface_set_mtu(iface->cfg, &mtu_64, 1);
1496 ovsrec_interface_set_mtu(iface->cfg, NULL, 0);
1500 /* Writes 'iface''s CFM statistics to the database. */
1502 iface_refresh_cfm_stats(struct iface *iface)
1504 const struct ovsrec_interface *cfg = iface->cfg;
1506 const uint64_t *rmps;
1509 if (iface_is_synthetic(iface)) {
1513 fault = ofproto_port_get_cfm_fault(iface->port->bridge->ofproto,
1516 bool fault_bool = fault;
1517 ovsrec_interface_set_cfm_fault(cfg, &fault_bool, 1);
1519 ovsrec_interface_set_cfm_fault(cfg, NULL, 0);
1522 error = ofproto_port_get_cfm_remote_mpids(iface->port->bridge->ofproto,
1523 iface->ofp_port, &rmps, &n_rmps);
1525 ovsrec_interface_set_cfm_remote_mpids(cfg, (const int64_t *)rmps,
1528 ovsrec_interface_set_cfm_remote_mpids(cfg, NULL, 0);
1533 iface_refresh_stats(struct iface *iface)
1535 #define IFACE_STATS \
1536 IFACE_STAT(rx_packets, "rx_packets") \
1537 IFACE_STAT(tx_packets, "tx_packets") \
1538 IFACE_STAT(rx_bytes, "rx_bytes") \
1539 IFACE_STAT(tx_bytes, "tx_bytes") \
1540 IFACE_STAT(rx_dropped, "rx_dropped") \
1541 IFACE_STAT(tx_dropped, "tx_dropped") \
1542 IFACE_STAT(rx_errors, "rx_errors") \
1543 IFACE_STAT(tx_errors, "tx_errors") \
1544 IFACE_STAT(rx_frame_errors, "rx_frame_err") \
1545 IFACE_STAT(rx_over_errors, "rx_over_err") \
1546 IFACE_STAT(rx_crc_errors, "rx_crc_err") \
1547 IFACE_STAT(collisions, "collisions")
1549 #define IFACE_STAT(MEMBER, NAME) NAME,
1550 static char *keys[] = { IFACE_STATS };
1552 int64_t values[ARRAY_SIZE(keys)];
1555 struct netdev_stats stats;
1557 if (iface_is_synthetic(iface)) {
1561 /* Intentionally ignore return value, since errors will set 'stats' to
1562 * all-1s, and we will deal with that correctly below. */
1563 netdev_get_stats(iface->netdev, &stats);
1565 /* Copy statistics into values[] array. */
1567 #define IFACE_STAT(MEMBER, NAME) values[i++] = stats.MEMBER;
1570 assert(i == ARRAY_SIZE(keys));
1572 ovsrec_interface_set_statistics(iface->cfg, keys, values, ARRAY_SIZE(keys));
1577 br_refresh_stp_status(struct bridge *br)
1579 struct ofproto *ofproto = br->ofproto;
1580 struct ofproto_stp_status status;
1581 char *keys[3], *values[3];
1584 if (ofproto_get_stp_status(ofproto, &status)) {
1588 if (!status.enabled) {
1589 ovsrec_bridge_set_status(br->cfg, NULL, NULL, 0);
1593 keys[0] = "stp_bridge_id",
1594 values[0] = xasprintf(STP_ID_FMT, STP_ID_ARGS(status.bridge_id));
1595 keys[1] = "stp_designated_root",
1596 values[1] = xasprintf(STP_ID_FMT, STP_ID_ARGS(status.designated_root));
1597 keys[2] = "stp_root_path_cost",
1598 values[2] = xasprintf("%d", status.root_path_cost);
1600 ovsrec_bridge_set_status(br->cfg, keys, values, ARRAY_SIZE(values));
1602 for (i = 0; i < ARRAY_SIZE(values); i++) {
1608 port_refresh_stp_status(struct port *port)
1610 struct ofproto *ofproto = port->bridge->ofproto;
1611 struct iface *iface;
1612 struct ofproto_port_stp_status status;
1614 char *str_values[4];
1615 int64_t int_values[3];
1618 if (port_is_synthetic(port)) {
1622 /* STP doesn't currently support bonds. */
1623 if (!list_is_singleton(&port->ifaces)) {
1624 ovsrec_port_set_status(port->cfg, NULL, NULL, 0);
1628 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
1630 if (ofproto_port_get_stp_status(ofproto, iface->ofp_port, &status)) {
1634 if (!status.enabled) {
1635 ovsrec_port_set_status(port->cfg, NULL, NULL, 0);
1636 ovsrec_port_set_statistics(port->cfg, NULL, NULL, 0);
1640 /* Set Status column. */
1641 keys[0] = "stp_port_id";
1642 str_values[0] = xasprintf(STP_PORT_ID_FMT, status.port_id);
1643 keys[1] = "stp_state";
1644 str_values[1] = xstrdup(stp_state_name(status.state));
1645 keys[2] = "stp_sec_in_state";
1646 str_values[2] = xasprintf("%u", status.sec_in_state);
1647 keys[3] = "stp_role";
1648 str_values[3] = xstrdup(stp_role_name(status.role));
1650 ovsrec_port_set_status(port->cfg, keys, str_values,
1651 ARRAY_SIZE(str_values));
1653 for (i = 0; i < ARRAY_SIZE(str_values); i++) {
1654 free(str_values[i]);
1657 /* Set Statistics column. */
1658 keys[0] = "stp_tx_count";
1659 int_values[0] = status.tx_count;
1660 keys[1] = "stp_rx_count";
1661 int_values[1] = status.rx_count;
1662 keys[2] = "stp_error_count";
1663 int_values[2] = status.error_count;
1665 ovsrec_port_set_statistics(port->cfg, keys, int_values,
1666 ARRAY_SIZE(int_values));
1670 enable_system_stats(const struct ovsrec_open_vswitch *cfg)
1674 /* Use other-config:enable-system-stats by preference. */
1675 enable = get_ovsrec_key_value(&cfg->header_,
1676 &ovsrec_open_vswitch_col_other_config,
1677 "enable-statistics");
1679 return !strcmp(enable, "true");
1682 /* Disable by default. */
1687 refresh_system_stats(const struct ovsrec_open_vswitch *cfg)
1689 struct ovsdb_datum datum;
1693 if (enable_system_stats(cfg)) {
1694 get_system_stats(&stats);
1697 ovsdb_datum_from_shash(&datum, &stats);
1698 ovsdb_idl_txn_write(&cfg->header_, &ovsrec_open_vswitch_col_statistics,
1702 static inline const char *
1703 nx_role_to_str(enum nx_role role)
1708 case NX_ROLE_MASTER:
1713 return "*** INVALID ROLE ***";
1718 refresh_controller_status(void)
1722 const struct ovsrec_controller *cfg;
1726 /* Accumulate status for controllers on all bridges. */
1727 HMAP_FOR_EACH (br, node, &all_bridges) {
1728 ofproto_get_ofproto_controller_info(br->ofproto, &info);
1731 /* Update each controller in the database with current status. */
1732 OVSREC_CONTROLLER_FOR_EACH(cfg, idl) {
1733 struct ofproto_controller_info *cinfo =
1734 shash_find_data(&info, cfg->target);
1737 ovsrec_controller_set_is_connected(cfg, cinfo->is_connected);
1738 ovsrec_controller_set_role(cfg, nx_role_to_str(cinfo->role));
1739 ovsrec_controller_set_status(cfg, (char **) cinfo->pairs.keys,
1740 (char **) cinfo->pairs.values,
1743 ovsrec_controller_set_is_connected(cfg, false);
1744 ovsrec_controller_set_role(cfg, NULL);
1745 ovsrec_controller_set_status(cfg, NULL, NULL, 0);
1749 ofproto_free_ofproto_controller_info(&info);
1753 refresh_cfm_stats(void)
1755 static struct ovsdb_idl_txn *txn = NULL;
1760 txn = ovsdb_idl_txn_create(idl);
1762 HMAP_FOR_EACH (br, node, &all_bridges) {
1763 struct iface *iface;
1765 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
1766 iface_refresh_cfm_stats(iface);
1771 if (ovsdb_idl_txn_commit(txn) != TXN_INCOMPLETE) {
1772 ovsdb_idl_txn_destroy(txn);
1777 /* Performs periodic activity required by bridges that needs to be done with
1778 * the least possible latency.
1780 * It makes sense to call this function a couple of times per poll loop, to
1781 * provide a significant performance boost on some benchmarks with ofprotos
1782 * that use the ofproto-dpif implementation. */
1784 bridge_run_fast(void)
1788 HMAP_FOR_EACH (br, node, &all_bridges) {
1789 ofproto_run_fast(br->ofproto);
1796 const struct ovsrec_open_vswitch *cfg;
1798 bool database_changed;
1801 /* (Re)configure if necessary. */
1802 database_changed = ovsdb_idl_run(idl);
1803 if (ovsdb_idl_is_lock_contended(idl)) {
1804 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
1805 struct bridge *br, *next_br;
1807 VLOG_ERR_RL(&rl, "another ovs-vswitchd process is running, "
1808 "disabling this process until it goes away");
1810 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
1814 } else if (!ovsdb_idl_has_lock(idl)) {
1817 cfg = ovsrec_open_vswitch_first(idl);
1819 /* Let each bridge do the work that it needs to do. */
1820 HMAP_FOR_EACH (br, node, &all_bridges) {
1821 ofproto_run(br->ofproto);
1824 /* Re-configure SSL. We do this on every trip through the main loop,
1825 * instead of just when the database changes, because the contents of the
1826 * key and certificate files can change without the database changing.
1828 * We do this before bridge_reconfigure() because that function might
1829 * initiate SSL connections and thus requires SSL to be configured. */
1830 if (cfg && cfg->ssl) {
1831 const struct ovsrec_ssl *ssl = cfg->ssl;
1833 stream_ssl_set_key_and_cert(ssl->private_key, ssl->certificate);
1834 stream_ssl_set_ca_cert_file(ssl->ca_cert, ssl->bootstrap_ca_cert);
1837 if (database_changed) {
1839 struct ovsdb_idl_txn *txn = ovsdb_idl_txn_create(idl);
1841 bridge_reconfigure(cfg);
1843 ovsrec_open_vswitch_set_cur_cfg(cfg, cfg->next_cfg);
1844 ovsdb_idl_txn_commit(txn);
1845 ovsdb_idl_txn_destroy(txn); /* XXX */
1847 /* We still need to reconfigure to avoid dangling pointers to
1848 * now-destroyed ovsrec structures inside bridge data. */
1849 static const struct ovsrec_open_vswitch null_cfg;
1851 bridge_reconfigure(&null_cfg);
1855 /* Refresh system and interface stats if necessary. */
1856 if (time_msec() >= stats_timer) {
1858 struct ovsdb_idl_txn *txn;
1860 txn = ovsdb_idl_txn_create(idl);
1861 HMAP_FOR_EACH (br, node, &all_bridges) {
1864 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1865 struct iface *iface;
1867 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1868 iface_refresh_stats(iface);
1869 iface_refresh_status(iface);
1873 refresh_system_stats(cfg);
1874 refresh_controller_status();
1875 ovsdb_idl_txn_commit(txn);
1876 ovsdb_idl_txn_destroy(txn); /* XXX */
1879 stats_timer = time_msec() + STATS_INTERVAL;
1882 if (time_msec() >= db_limiter) {
1883 struct ovsdb_idl_txn *txn;
1885 txn = ovsdb_idl_txn_create(idl);
1886 HMAP_FOR_EACH (br, node, &all_bridges) {
1887 struct iface *iface;
1890 br_refresh_stp_status(br);
1892 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1893 port_refresh_stp_status(port);
1896 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
1897 const char *link_state;
1898 int64_t link_resets;
1901 if (iface_is_synthetic(iface)) {
1905 current = ofproto_port_is_lacp_current(br->ofproto,
1909 ovsrec_interface_set_lacp_current(iface->cfg, &bl, 1);
1911 ovsrec_interface_set_lacp_current(iface->cfg, NULL, 0);
1914 link_state = netdev_get_carrier(iface->netdev) ? "up" : "down";
1915 ovsrec_interface_set_link_state(iface->cfg, link_state);
1917 link_resets = netdev_get_carrier_resets(iface->netdev);
1918 ovsrec_interface_set_link_resets(iface->cfg, &link_resets, 1);
1922 if (ovsdb_idl_txn_commit(txn) != TXN_UNCHANGED) {
1923 db_limiter = time_msec() + DB_LIMIT_INTERVAL;
1925 ovsdb_idl_txn_destroy(txn);
1928 refresh_cfm_stats();
1934 ovsdb_idl_wait(idl);
1935 if (!hmap_is_empty(&all_bridges)) {
1938 HMAP_FOR_EACH (br, node, &all_bridges) {
1939 ofproto_wait(br->ofproto);
1941 poll_timer_wait_until(stats_timer);
1943 if (db_limiter > time_msec()) {
1944 poll_timer_wait_until(db_limiter);
1949 /* QoS unixctl user interface functions. */
1951 struct qos_unixctl_show_cbdata {
1953 struct iface *iface;
1957 qos_unixctl_show_cb(unsigned int queue_id,
1958 const struct shash *details,
1961 struct qos_unixctl_show_cbdata *data = aux;
1962 struct ds *ds = data->ds;
1963 struct iface *iface = data->iface;
1964 struct netdev_queue_stats stats;
1965 struct shash_node *node;
1968 ds_put_cstr(ds, "\n");
1970 ds_put_format(ds, "Queue %u:\n", queue_id);
1972 ds_put_cstr(ds, "Default:\n");
1975 SHASH_FOR_EACH (node, details) {
1976 ds_put_format(ds, "\t%s: %s\n", node->name, (char *)node->data);
1979 error = netdev_get_queue_stats(iface->netdev, queue_id, &stats);
1981 if (stats.tx_packets != UINT64_MAX) {
1982 ds_put_format(ds, "\ttx_packets: %"PRIu64"\n", stats.tx_packets);
1985 if (stats.tx_bytes != UINT64_MAX) {
1986 ds_put_format(ds, "\ttx_bytes: %"PRIu64"\n", stats.tx_bytes);
1989 if (stats.tx_errors != UINT64_MAX) {
1990 ds_put_format(ds, "\ttx_errors: %"PRIu64"\n", stats.tx_errors);
1993 ds_put_format(ds, "\tFailed to get statistics for queue %u: %s",
1994 queue_id, strerror(error));
1999 qos_unixctl_show(struct unixctl_conn *conn,
2000 const char *args, void *aux OVS_UNUSED)
2002 struct ds ds = DS_EMPTY_INITIALIZER;
2003 struct shash sh = SHASH_INITIALIZER(&sh);
2004 struct iface *iface;
2006 struct shash_node *node;
2007 struct qos_unixctl_show_cbdata data;
2010 iface = iface_find(args);
2012 unixctl_command_reply(conn, 501, "no such interface");
2016 netdev_get_qos(iface->netdev, &type, &sh);
2018 if (*type != '\0') {
2019 ds_put_format(&ds, "QoS: %s %s\n", iface->name, type);
2021 SHASH_FOR_EACH (node, &sh) {
2022 ds_put_format(&ds, "%s: %s\n", node->name, (char *)node->data);
2027 error = netdev_dump_queues(iface->netdev, qos_unixctl_show_cb, &data);
2030 ds_put_format(&ds, "failed to dump queues: %s", strerror(error));
2032 unixctl_command_reply(conn, 200, ds_cstr(&ds));
2034 ds_put_format(&ds, "QoS not configured on %s\n", iface->name);
2035 unixctl_command_reply(conn, 501, ds_cstr(&ds));
2038 shash_destroy_free_data(&sh);
2042 /* Bridge reconfiguration functions. */
2044 bridge_create(const struct ovsrec_bridge *br_cfg)
2048 assert(!bridge_lookup(br_cfg->name));
2049 br = xzalloc(sizeof *br);
2051 br->name = xstrdup(br_cfg->name);
2052 br->type = xstrdup(ofproto_normalize_type(br_cfg->datapath_type));
2055 /* Derive the default Ethernet address from the bridge's UUID. This should
2056 * be unique and it will be stable between ovs-vswitchd runs. */
2057 memcpy(br->default_ea, &br_cfg->header_.uuid, ETH_ADDR_LEN);
2058 eth_addr_mark_random(br->default_ea);
2060 hmap_init(&br->ports);
2061 hmap_init(&br->ifaces);
2062 hmap_init(&br->iface_by_name);
2063 hmap_init(&br->mirrors);
2065 hmap_insert(&all_bridges, &br->node, hash_string(br->name, 0));
2069 bridge_destroy(struct bridge *br)
2072 struct mirror *mirror, *next_mirror;
2073 struct port *port, *next_port;
2075 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
2078 HMAP_FOR_EACH_SAFE (mirror, next_mirror, hmap_node, &br->mirrors) {
2079 mirror_destroy(mirror);
2081 hmap_remove(&all_bridges, &br->node);
2082 ofproto_destroy(br->ofproto);
2083 hmap_destroy(&br->ifaces);
2084 hmap_destroy(&br->ports);
2085 hmap_destroy(&br->iface_by_name);
2086 hmap_destroy(&br->mirrors);
2093 static struct bridge *
2094 bridge_lookup(const char *name)
2098 HMAP_FOR_EACH_WITH_HASH (br, node, hash_string(name, 0), &all_bridges) {
2099 if (!strcmp(br->name, name)) {
2106 /* Handle requests for a listing of all flows known by the OpenFlow
2107 * stack, including those normally hidden. */
2109 bridge_unixctl_dump_flows(struct unixctl_conn *conn,
2110 const char *args, void *aux OVS_UNUSED)
2115 br = bridge_lookup(args);
2117 unixctl_command_reply(conn, 501, "Unknown bridge");
2122 ofproto_get_all_flows(br->ofproto, &results);
2124 unixctl_command_reply(conn, 200, ds_cstr(&results));
2125 ds_destroy(&results);
2128 /* "bridge/reconnect [BRIDGE]": makes BRIDGE drop all of its controller
2129 * connections and reconnect. If BRIDGE is not specified, then all bridges
2130 * drop their controller connections and reconnect. */
2132 bridge_unixctl_reconnect(struct unixctl_conn *conn,
2133 const char *args, void *aux OVS_UNUSED)
2136 if (args[0] != '\0') {
2137 br = bridge_lookup(args);
2139 unixctl_command_reply(conn, 501, "Unknown bridge");
2142 ofproto_reconnect_controllers(br->ofproto);
2144 HMAP_FOR_EACH (br, node, &all_bridges) {
2145 ofproto_reconnect_controllers(br->ofproto);
2148 unixctl_command_reply(conn, 200, NULL);
2152 bridge_get_controllers(const struct bridge *br,
2153 struct ovsrec_controller ***controllersp)
2155 struct ovsrec_controller **controllers;
2156 size_t n_controllers;
2158 controllers = br->cfg->controller;
2159 n_controllers = br->cfg->n_controller;
2161 if (n_controllers == 1 && !strcmp(controllers[0]->target, "none")) {
2167 *controllersp = controllers;
2169 return n_controllers;
2172 /* Adds and deletes "struct port"s and "struct iface"s under 'br' to match
2173 * those configured in 'br->cfg'. */
2175 bridge_add_del_ports(struct bridge *br)
2177 struct port *port, *next;
2178 struct shash_node *node;
2179 struct shash new_ports;
2182 /* Collect new ports. */
2183 shash_init(&new_ports);
2184 for (i = 0; i < br->cfg->n_ports; i++) {
2185 const char *name = br->cfg->ports[i]->name;
2186 if (!shash_add_once(&new_ports, name, br->cfg->ports[i])) {
2187 VLOG_WARN("bridge %s: %s specified twice as bridge port",
2191 if (bridge_get_controllers(br, NULL)
2192 && !shash_find(&new_ports, br->name)) {
2193 VLOG_WARN("bridge %s: no port named %s, synthesizing one",
2194 br->name, br->name);
2196 br->synth_local_port.interfaces = &br->synth_local_ifacep;
2197 br->synth_local_port.n_interfaces = 1;
2198 br->synth_local_port.name = br->name;
2200 br->synth_local_iface.name = br->name;
2201 br->synth_local_iface.type = "internal";
2203 br->synth_local_ifacep = &br->synth_local_iface;
2205 shash_add(&new_ports, br->name, &br->synth_local_port);
2208 /* Get rid of deleted ports.
2209 * Get rid of deleted interfaces on ports that still exist.
2210 * Update 'cfg' of ports that still exist. */
2211 HMAP_FOR_EACH_SAFE (port, next, hmap_node, &br->ports) {
2212 port->cfg = shash_find_data(&new_ports, port->name);
2216 port_del_ifaces(port);
2220 /* Create new ports.
2221 * Add new interfaces to existing ports. */
2222 SHASH_FOR_EACH (node, &new_ports) {
2223 struct port *port = port_lookup(br, node->name);
2225 struct ovsrec_port *cfg = node->data;
2226 port = port_create(br, cfg);
2228 port_add_ifaces(port);
2229 if (list_is_empty(&port->ifaces)) {
2230 VLOG_WARN("bridge %s: port %s has no interfaces, dropping",
2231 br->name, port->name);
2235 shash_destroy(&new_ports);
2238 /* Initializes 'oc' appropriately as a management service controller for
2241 * The caller must free oc->target when it is no longer needed. */
2243 bridge_ofproto_controller_for_mgmt(const struct bridge *br,
2244 struct ofproto_controller *oc)
2246 oc->target = xasprintf("punix:%s/%s.mgmt", ovs_rundir(), br->name);
2247 oc->max_backoff = 0;
2248 oc->probe_interval = 60;
2249 oc->band = OFPROTO_OUT_OF_BAND;
2251 oc->burst_limit = 0;
2254 /* Converts ovsrec_controller 'c' into an ofproto_controller in 'oc'. */
2256 bridge_ofproto_controller_from_ovsrec(const struct ovsrec_controller *c,
2257 struct ofproto_controller *oc)
2259 oc->target = c->target;
2260 oc->max_backoff = c->max_backoff ? *c->max_backoff / 1000 : 8;
2261 oc->probe_interval = c->inactivity_probe ? *c->inactivity_probe / 1000 : 5;
2262 oc->band = (!c->connection_mode || !strcmp(c->connection_mode, "in-band")
2263 ? OFPROTO_IN_BAND : OFPROTO_OUT_OF_BAND);
2264 oc->rate_limit = c->controller_rate_limit ? *c->controller_rate_limit : 0;
2265 oc->burst_limit = (c->controller_burst_limit
2266 ? *c->controller_burst_limit : 0);
2269 /* Configures the IP stack for 'br''s local interface properly according to the
2270 * configuration in 'c'. */
2272 bridge_configure_local_iface_netdev(struct bridge *br,
2273 struct ovsrec_controller *c)
2275 struct netdev *netdev;
2276 struct in_addr mask, gateway;
2278 struct iface *local_iface;
2281 /* If there's no local interface or no IP address, give up. */
2282 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
2283 if (!local_iface || !c->local_ip || !inet_aton(c->local_ip, &ip)) {
2287 /* Bring up the local interface. */
2288 netdev = local_iface->netdev;
2289 netdev_turn_flags_on(netdev, NETDEV_UP, true);
2291 /* Configure the IP address and netmask. */
2292 if (!c->local_netmask
2293 || !inet_aton(c->local_netmask, &mask)
2295 mask.s_addr = guess_netmask(ip.s_addr);
2297 if (!netdev_set_in4(netdev, ip, mask)) {
2298 VLOG_INFO("bridge %s: configured IP address "IP_FMT", netmask "IP_FMT,
2299 br->name, IP_ARGS(&ip.s_addr), IP_ARGS(&mask.s_addr));
2302 /* Configure the default gateway. */
2303 if (c->local_gateway
2304 && inet_aton(c->local_gateway, &gateway)
2305 && gateway.s_addr) {
2306 if (!netdev_add_router(netdev, gateway)) {
2307 VLOG_INFO("bridge %s: configured gateway "IP_FMT,
2308 br->name, IP_ARGS(&gateway.s_addr));
2313 /* Returns true if 'a' and 'b' are the same except that any number of slashes
2314 * in either string are treated as equal to any number of slashes in the other,
2315 * e.g. "x///y" is equal to "x/y". */
2317 equal_pathnames(const char *a, const char *b)
2321 a += strspn(a, "/");
2322 b += strspn(b, "/");
2323 } else if (*a == '\0') {
2334 bridge_configure_remotes(struct bridge *br,
2335 const struct sockaddr_in *managers, size_t n_managers)
2337 const char *disable_ib_str, *queue_id_str;
2338 bool disable_in_band = false;
2341 struct ovsrec_controller **controllers;
2342 size_t n_controllers;
2344 enum ofproto_fail_mode fail_mode;
2346 struct ofproto_controller *ocs;
2350 /* Check if we should disable in-band control on this bridge. */
2351 disable_ib_str = bridge_get_other_config(br->cfg, "disable-in-band");
2352 if (disable_ib_str && !strcmp(disable_ib_str, "true")) {
2353 disable_in_band = true;
2356 /* Set OpenFlow queue ID for in-band control. */
2357 queue_id_str = bridge_get_other_config(br->cfg, "in-band-queue");
2358 queue_id = queue_id_str ? strtol(queue_id_str, NULL, 10) : -1;
2359 ofproto_set_in_band_queue(br->ofproto, queue_id);
2361 if (disable_in_band) {
2362 ofproto_set_extra_in_band_remotes(br->ofproto, NULL, 0);
2364 ofproto_set_extra_in_band_remotes(br->ofproto, managers, n_managers);
2367 n_controllers = bridge_get_controllers(br, &controllers);
2369 ocs = xmalloc((n_controllers + 1) * sizeof *ocs);
2372 bridge_ofproto_controller_for_mgmt(br, &ocs[n_ocs++]);
2373 for (i = 0; i < n_controllers; i++) {
2374 struct ovsrec_controller *c = controllers[i];
2376 if (!strncmp(c->target, "punix:", 6)
2377 || !strncmp(c->target, "unix:", 5)) {
2378 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2381 whitelist = xasprintf("unix:%s/%s.controller",
2382 ovs_rundir(), br->name);
2383 if (!equal_pathnames(c->target, whitelist)) {
2384 /* Prevent remote ovsdb-server users from accessing arbitrary
2385 * Unix domain sockets and overwriting arbitrary local
2387 VLOG_ERR_RL(&rl, "bridge %s: Not adding Unix domain socket "
2388 "controller \"%s\" due to possibility for remote "
2389 "exploit. Instead, specify whitelisted \"%s\" or "
2390 "connect to \"unix:%s/%s.mgmt\" (which is always "
2391 "available without special configuration).",
2392 br->name, c->target, whitelist,
2393 ovs_rundir(), br->name);
2401 bridge_configure_local_iface_netdev(br, c);
2402 bridge_ofproto_controller_from_ovsrec(c, &ocs[n_ocs]);
2403 if (disable_in_band) {
2404 ocs[n_ocs].band = OFPROTO_OUT_OF_BAND;
2409 ofproto_set_controllers(br->ofproto, ocs, n_ocs);
2410 free(ocs[0].target); /* From bridge_ofproto_controller_for_mgmt(). */
2413 /* Set the fail-mode. */
2414 fail_mode = !br->cfg->fail_mode
2415 || !strcmp(br->cfg->fail_mode, "standalone")
2416 ? OFPROTO_FAIL_STANDALONE
2417 : OFPROTO_FAIL_SECURE;
2418 ofproto_set_fail_mode(br->ofproto, fail_mode);
2420 /* Configure OpenFlow controller connection snooping. */
2421 if (!ofproto_has_snoops(br->ofproto)) {
2425 sset_add_and_free(&snoops, xasprintf("punix:%s/%s.snoop",
2426 ovs_rundir(), br->name));
2427 ofproto_set_snoops(br->ofproto, &snoops);
2428 sset_destroy(&snoops);
2432 /* Port functions. */
2434 static struct port *
2435 port_create(struct bridge *br, const struct ovsrec_port *cfg)
2439 port = xzalloc(sizeof *port);
2441 port->name = xstrdup(cfg->name);
2443 list_init(&port->ifaces);
2445 hmap_insert(&br->ports, &port->hmap_node, hash_string(port->name, 0));
2447 VLOG_INFO("created port %s on bridge %s", port->name, br->name);
2453 get_port_other_config(const struct ovsrec_port *port, const char *key,
2454 const char *default_value)
2458 value = get_ovsrec_key_value(&port->header_, &ovsrec_port_col_other_config,
2460 return value ? value : default_value;
2464 get_interface_other_config(const struct ovsrec_interface *iface,
2465 const char *key, const char *default_value)
2469 value = get_ovsrec_key_value(&iface->header_,
2470 &ovsrec_interface_col_other_config, key);
2471 return value ? value : default_value;
2474 /* Deletes interfaces from 'port' that are no longer configured for it. */
2476 port_del_ifaces(struct port *port)
2478 struct iface *iface, *next;
2479 struct sset new_ifaces;
2482 /* Collect list of new interfaces. */
2483 sset_init(&new_ifaces);
2484 for (i = 0; i < port->cfg->n_interfaces; i++) {
2485 const char *name = port->cfg->interfaces[i]->name;
2486 const char *type = port->cfg->interfaces[i]->name;
2487 if (strcmp(type, "null")) {
2488 sset_add(&new_ifaces, name);
2492 /* Get rid of deleted interfaces. */
2493 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2494 if (!sset_contains(&new_ifaces, iface->name)) {
2495 iface_destroy(iface);
2499 sset_destroy(&new_ifaces);
2502 /* Adds new interfaces to 'port' and updates 'type' and 'cfg' members of
2505 port_add_ifaces(struct port *port)
2507 struct shash new_ifaces;
2508 struct shash_node *node;
2511 /* Collect new ifaces. */
2512 shash_init(&new_ifaces);
2513 for (i = 0; i < port->cfg->n_interfaces; i++) {
2514 const struct ovsrec_interface *cfg = port->cfg->interfaces[i];
2515 if (strcmp(cfg->type, "null")
2516 && !shash_add_once(&new_ifaces, cfg->name, cfg)) {
2517 VLOG_WARN("port %s: %s specified twice as port interface",
2518 port->name, cfg->name);
2519 iface_clear_db_record(cfg);
2523 /* Create new interfaces.
2524 * Update interface types and 'cfg' members. */
2525 SHASH_FOR_EACH (node, &new_ifaces) {
2526 const struct ovsrec_interface *cfg = node->data;
2527 const char *iface_name = node->name;
2528 struct iface *iface;
2530 iface = iface_lookup(port->bridge, iface_name);
2532 iface = iface_create(port, cfg);
2537 /* Determine interface type. The local port always has type
2538 * "internal". Other ports take their type from the database and
2539 * default to "system" if none is specified. */
2540 iface->type = (!strcmp(iface_name, port->bridge->name) ? "internal"
2541 : cfg->type[0] ? cfg->type
2544 shash_destroy(&new_ifaces);
2548 port_destroy(struct port *port)
2551 struct bridge *br = port->bridge;
2552 struct iface *iface, *next;
2555 ofproto_bundle_unregister(br->ofproto, port);
2558 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2559 iface_destroy(iface);
2562 hmap_remove(&br->ports, &port->hmap_node);
2564 VLOG_INFO("destroyed port %s on bridge %s", port->name, br->name);
2571 static struct port *
2572 port_lookup(const struct bridge *br, const char *name)
2576 HMAP_FOR_EACH_WITH_HASH (port, hmap_node, hash_string(name, 0),
2578 if (!strcmp(port->name, name)) {
2586 enable_lacp(struct port *port, bool *activep)
2588 if (!port->cfg->lacp) {
2589 /* XXX when LACP implementation has been sufficiently tested, enable by
2590 * default and make active on bonded ports. */
2592 } else if (!strcmp(port->cfg->lacp, "off")) {
2594 } else if (!strcmp(port->cfg->lacp, "active")) {
2597 } else if (!strcmp(port->cfg->lacp, "passive")) {
2601 VLOG_WARN("port %s: unknown LACP mode %s",
2602 port->name, port->cfg->lacp);
2607 static struct lacp_settings *
2608 port_configure_lacp(struct port *port, struct lacp_settings *s)
2610 const char *lacp_time, *system_id;
2611 long long int custom_time;
2614 if (!enable_lacp(port, &s->active)) {
2618 s->name = port->name;
2620 system_id = get_port_other_config(port->cfg, "lacp-system-id", NULL);
2622 || sscanf(system_id, ETH_ADDR_SCAN_FMT,
2623 ETH_ADDR_SCAN_ARGS(s->id)) != ETH_ADDR_SCAN_COUNT) {
2624 memcpy(s->id, port->bridge->ea, ETH_ADDR_LEN);
2627 /* Prefer bondable links if unspecified. */
2628 priority = atoi(get_port_other_config(port->cfg, "lacp-system-priority",
2630 s->priority = (priority > 0 && priority <= UINT16_MAX
2632 : UINT16_MAX - !list_is_short(&port->ifaces));
2634 s->heartbeat = !strcmp(get_port_other_config(port->cfg,
2639 lacp_time = get_port_other_config(port->cfg, "lacp-time", "slow");
2640 custom_time = atoi(lacp_time);
2641 if (!strcmp(lacp_time, "fast")) {
2642 s->lacp_time = LACP_TIME_FAST;
2643 } else if (!strcmp(lacp_time, "slow")) {
2644 s->lacp_time = LACP_TIME_SLOW;
2645 } else if (custom_time > 0) {
2646 s->lacp_time = LACP_TIME_CUSTOM;
2647 s->custom_time = custom_time;
2649 s->lacp_time = LACP_TIME_SLOW;
2656 iface_configure_lacp(struct iface *iface, struct lacp_slave_settings *s)
2658 int priority, portid, key;
2660 portid = atoi(get_interface_other_config(iface->cfg, "lacp-port-id", "0"));
2661 priority = atoi(get_interface_other_config(iface->cfg,
2662 "lacp-port-priority", "0"));
2663 key = atoi(get_interface_other_config(iface->cfg, "lacp-aggregation-key",
2666 if (portid <= 0 || portid > UINT16_MAX) {
2667 portid = iface->ofp_port;
2670 if (priority <= 0 || priority > UINT16_MAX) {
2671 priority = UINT16_MAX;
2674 if (key < 0 || key > UINT16_MAX) {
2678 s->name = iface->name;
2680 s->priority = priority;
2685 port_configure_bond(struct port *port, struct bond_settings *s,
2686 uint32_t *bond_stable_ids)
2688 const char *detect_s;
2689 struct iface *iface;
2690 int miimon_interval;
2693 s->name = port->name;
2694 s->balance = BM_SLB;
2695 if (port->cfg->bond_mode
2696 && !bond_mode_from_string(&s->balance, port->cfg->bond_mode)) {
2697 VLOG_WARN("port %s: unknown bond_mode %s, defaulting to %s",
2698 port->name, port->cfg->bond_mode,
2699 bond_mode_to_string(s->balance));
2701 if (s->balance == BM_SLB && port->bridge->cfg->n_flood_vlans) {
2702 VLOG_WARN("port %s: SLB bonds are incompatible with flood_vlans, "
2703 "please use another bond type or disable flood_vlans",
2707 miimon_interval = atoi(get_port_other_config(port->cfg,
2708 "bond-miimon-interval", "0"));
2709 if (miimon_interval <= 0) {
2710 miimon_interval = 200;
2713 detect_s = get_port_other_config(port->cfg, "bond-detect-mode", "carrier");
2714 if (!strcmp(detect_s, "carrier")) {
2715 miimon_interval = 0;
2716 } else if (strcmp(detect_s, "miimon")) {
2717 VLOG_WARN("port %s: unsupported bond-detect-mode %s, "
2718 "defaulting to carrier", port->name, detect_s);
2719 miimon_interval = 0;
2722 s->up_delay = MAX(0, port->cfg->bond_updelay);
2723 s->down_delay = MAX(0, port->cfg->bond_downdelay);
2724 s->basis = atoi(get_port_other_config(port->cfg, "bond-hash-basis", "0"));
2725 s->rebalance_interval = atoi(
2726 get_port_other_config(port->cfg, "bond-rebalance-interval", "10000"));
2727 if (s->rebalance_interval < 1000) {
2728 s->rebalance_interval = 1000;
2731 s->fake_iface = port->cfg->bond_fake_iface;
2734 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
2735 long long stable_id;
2737 stable_id = atoll(get_interface_other_config(iface->cfg,
2738 "bond-stable-id", "0"));
2739 if (stable_id <= 0 || stable_id >= UINT32_MAX) {
2740 stable_id = iface->ofp_port;
2742 bond_stable_ids[i++] = stable_id;
2744 netdev_set_miimon_interval(iface->netdev, miimon_interval);
2748 /* Returns true if 'port' is synthetic, that is, if we constructed it locally
2749 * instead of obtaining it from the database. */
2751 port_is_synthetic(const struct port *port)
2753 return ovsdb_idl_row_is_synthetic(&port->cfg->header_);
2756 /* Interface functions. */
2758 static struct iface *
2759 iface_create(struct port *port, const struct ovsrec_interface *if_cfg)
2761 struct bridge *br = port->bridge;
2762 struct iface *iface;
2763 char *name = if_cfg->name;
2765 iface = xzalloc(sizeof *iface);
2767 iface->name = xstrdup(name);
2768 iface->ofp_port = -1;
2769 iface->tag = tag_create_random();
2770 iface->netdev = NULL;
2771 iface->cfg = if_cfg;
2773 hmap_insert(&br->iface_by_name, &iface->name_node, hash_string(name, 0));
2775 list_push_back(&port->ifaces, &iface->port_elem);
2777 VLOG_DBG("attached network device %s to port %s", iface->name, port->name);
2783 iface_destroy(struct iface *iface)
2786 struct port *port = iface->port;
2787 struct bridge *br = port->bridge;
2789 if (br->ofproto && iface->ofp_port >= 0) {
2790 ofproto_port_unregister(br->ofproto, iface->ofp_port);
2793 if (iface->ofp_port >= 0) {
2794 hmap_remove(&br->ifaces, &iface->ofp_port_node);
2797 list_remove(&iface->port_elem);
2798 hmap_remove(&br->iface_by_name, &iface->name_node);
2800 netdev_close(iface->netdev);
2807 static struct iface *
2808 iface_lookup(const struct bridge *br, const char *name)
2810 struct iface *iface;
2812 HMAP_FOR_EACH_WITH_HASH (iface, name_node, hash_string(name, 0),
2813 &br->iface_by_name) {
2814 if (!strcmp(iface->name, name)) {
2822 static struct iface *
2823 iface_find(const char *name)
2825 const struct bridge *br;
2827 HMAP_FOR_EACH (br, node, &all_bridges) {
2828 struct iface *iface = iface_lookup(br, name);
2837 static struct iface *
2838 iface_from_ofp_port(const struct bridge *br, uint16_t ofp_port)
2840 struct iface *iface;
2842 HMAP_FOR_EACH_IN_BUCKET (iface, ofp_port_node,
2843 hash_int(ofp_port, 0), &br->ifaces) {
2844 if (iface->ofp_port == ofp_port) {
2851 /* Set Ethernet address of 'iface', if one is specified in the configuration
2854 iface_set_mac(struct iface *iface)
2856 uint8_t ea[ETH_ADDR_LEN];
2858 if (!strcmp(iface->type, "internal")
2859 && iface->cfg->mac && eth_addr_from_string(iface->cfg->mac, ea)) {
2860 if (iface->ofp_port == OFPP_LOCAL) {
2861 VLOG_ERR("interface %s: ignoring mac in Interface record "
2862 "(use Bridge record to set local port's mac)",
2864 } else if (eth_addr_is_multicast(ea)) {
2865 VLOG_ERR("interface %s: cannot set MAC to multicast address",
2868 int error = netdev_set_etheraddr(iface->netdev, ea);
2870 VLOG_ERR("interface %s: setting MAC failed (%s)",
2871 iface->name, strerror(error));
2877 /* Sets the ofport column of 'if_cfg' to 'ofport'. */
2879 iface_set_ofport(const struct ovsrec_interface *if_cfg, int64_t ofport)
2881 if (if_cfg && !ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
2882 ovsrec_interface_set_ofport(if_cfg, &ofport, 1);
2886 /* Clears all of the fields in 'if_cfg' that indicate interface status, and
2887 * sets the "ofport" field to -1.
2889 * This is appropriate when 'if_cfg''s interface cannot be created or is
2890 * otherwise invalid. */
2892 iface_clear_db_record(const struct ovsrec_interface *if_cfg)
2894 if (!ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
2895 iface_set_ofport(if_cfg, -1);
2896 ovsrec_interface_set_status(if_cfg, NULL, NULL, 0);
2897 ovsrec_interface_set_admin_state(if_cfg, NULL);
2898 ovsrec_interface_set_duplex(if_cfg, NULL);
2899 ovsrec_interface_set_link_speed(if_cfg, NULL, 0);
2900 ovsrec_interface_set_link_state(if_cfg, NULL);
2901 ovsrec_interface_set_mtu(if_cfg, NULL, 0);
2902 ovsrec_interface_set_cfm_fault(if_cfg, NULL, 0);
2903 ovsrec_interface_set_cfm_remote_mpids(if_cfg, NULL, 0);
2904 ovsrec_interface_set_lacp_current(if_cfg, NULL, 0);
2905 ovsrec_interface_set_statistics(if_cfg, NULL, NULL, 0);
2909 /* Adds the 'n' key-value pairs in 'keys' in 'values' to 'shash'.
2911 * The value strings in '*shash' are taken directly from values[], not copied,
2912 * so the caller should not modify or free them. */
2914 shash_from_ovs_idl_map(char **keys, char **values, size_t n,
2915 struct shash *shash)
2920 for (i = 0; i < n; i++) {
2921 shash_add(shash, keys[i], values[i]);
2925 /* Creates 'keys' and 'values' arrays from 'shash'.
2927 * Sets 'keys' and 'values' to heap allocated arrays representing the key-value
2928 * pairs in 'shash'. The caller takes ownership of 'keys' and 'values'. They
2929 * are populated with with strings taken directly from 'shash' and thus have
2930 * the same ownership of the key-value pairs in shash.
2933 shash_to_ovs_idl_map(struct shash *shash,
2934 char ***keys, char ***values, size_t *n)
2938 struct shash_node *sn;
2940 count = shash_count(shash);
2942 k = xmalloc(count * sizeof *k);
2943 v = xmalloc(count * sizeof *v);
2946 SHASH_FOR_EACH(sn, shash) {
2957 struct iface_delete_queues_cbdata {
2958 struct netdev *netdev;
2959 const struct ovsdb_datum *queues;
2963 queue_ids_include(const struct ovsdb_datum *queues, int64_t target)
2965 union ovsdb_atom atom;
2967 atom.integer = target;
2968 return ovsdb_datum_find_key(queues, &atom, OVSDB_TYPE_INTEGER) != UINT_MAX;
2972 iface_delete_queues(unsigned int queue_id,
2973 const struct shash *details OVS_UNUSED, void *cbdata_)
2975 struct iface_delete_queues_cbdata *cbdata = cbdata_;
2977 if (!queue_ids_include(cbdata->queues, queue_id)) {
2978 netdev_delete_queue(cbdata->netdev, queue_id);
2983 iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos)
2985 if (!qos || qos->type[0] == '\0' || qos->n_queues < 1) {
2986 netdev_set_qos(iface->netdev, NULL, NULL);
2988 struct iface_delete_queues_cbdata cbdata;
2989 struct shash details;
2993 /* Configure top-level Qos for 'iface'. */
2994 shash_from_ovs_idl_map(qos->key_other_config, qos->value_other_config,
2995 qos->n_other_config, &details);
2996 netdev_set_qos(iface->netdev, qos->type, &details);
2997 shash_destroy(&details);
2999 /* Deconfigure queues that were deleted. */
3000 cbdata.netdev = iface->netdev;
3001 cbdata.queues = ovsrec_qos_get_queues(qos, OVSDB_TYPE_INTEGER,
3003 netdev_dump_queues(iface->netdev, iface_delete_queues, &cbdata);
3005 /* Configure queues for 'iface'. */
3007 for (i = 0; i < qos->n_queues; i++) {
3008 const struct ovsrec_queue *queue = qos->value_queues[i];
3009 unsigned int queue_id = qos->key_queues[i];
3011 if (queue_id == 0) {
3015 shash_from_ovs_idl_map(queue->key_other_config,
3016 queue->value_other_config,
3017 queue->n_other_config, &details);
3018 netdev_set_queue(iface->netdev, queue_id, &details);
3019 shash_destroy(&details);
3022 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
3023 VLOG_WARN_RL(&rl, "interface %s: QoS configured without a default "
3024 "queue (queue 0). Using default configuration.",
3027 shash_init(&details);
3028 netdev_set_queue(iface->netdev, 0, &details);
3029 shash_destroy(&details);
3033 netdev_set_policing(iface->netdev,
3034 iface->cfg->ingress_policing_rate,
3035 iface->cfg->ingress_policing_burst);
3039 iface_configure_cfm(struct iface *iface)
3041 const struct ovsrec_interface *cfg = iface->cfg;
3042 const char *extended_str, *opstate_str;
3043 struct cfm_settings s;
3045 if (!cfg->n_cfm_mpid) {
3046 ofproto_port_clear_cfm(iface->port->bridge->ofproto, iface->ofp_port);
3050 s.mpid = *cfg->cfm_mpid;
3051 s.interval = atoi(get_interface_other_config(iface->cfg, "cfm_interval",
3053 if (s.interval <= 0) {
3057 extended_str = get_interface_other_config(iface->cfg, "cfm_extended",
3059 s.extended = !strcasecmp("true", extended_str);
3061 opstate_str = get_interface_other_config(iface->cfg, "cfm_opstate", "up");
3062 s.opup = !strcasecmp("up", opstate_str);
3064 ofproto_port_set_cfm(iface->port->bridge->ofproto, iface->ofp_port, &s);
3067 /* Returns true if 'iface' is synthetic, that is, if we constructed it locally
3068 * instead of obtaining it from the database. */
3070 iface_is_synthetic(const struct iface *iface)
3072 return ovsdb_idl_row_is_synthetic(&iface->cfg->header_);
3075 /* Port mirroring. */
3077 static struct mirror *
3078 mirror_find_by_uuid(struct bridge *br, const struct uuid *uuid)
3082 HMAP_FOR_EACH_IN_BUCKET (m, hmap_node, uuid_hash(uuid), &br->mirrors) {
3083 if (uuid_equals(uuid, &m->uuid)) {
3091 bridge_configure_mirrors(struct bridge *br)
3093 const struct ovsdb_datum *mc;
3094 unsigned long *flood_vlans;
3095 struct mirror *m, *next;
3098 /* Get rid of deleted mirrors. */
3099 mc = ovsrec_bridge_get_mirrors(br->cfg, OVSDB_TYPE_UUID);
3100 HMAP_FOR_EACH_SAFE (m, next, hmap_node, &br->mirrors) {
3101 union ovsdb_atom atom;
3103 atom.uuid = m->uuid;
3104 if (ovsdb_datum_find_key(mc, &atom, OVSDB_TYPE_UUID) == UINT_MAX) {
3109 /* Add new mirrors and reconfigure existing ones. */
3110 for (i = 0; i < br->cfg->n_mirrors; i++) {
3111 const struct ovsrec_mirror *cfg = br->cfg->mirrors[i];
3112 struct mirror *m = mirror_find_by_uuid(br, &cfg->header_.uuid);
3114 m = mirror_create(br, cfg);
3116 if (!mirror_configure(m, cfg)) {
3121 /* Update flooded vlans (for RSPAN). */
3122 flood_vlans = vlan_bitmap_from_array(br->cfg->flood_vlans,
3123 br->cfg->n_flood_vlans);
3124 ofproto_set_flood_vlans(br->ofproto, flood_vlans);
3125 bitmap_free(flood_vlans);
3128 static struct mirror *
3129 mirror_create(struct bridge *br, const struct ovsrec_mirror *cfg)
3133 m = xzalloc(sizeof *m);
3134 m->uuid = cfg->header_.uuid;
3135 hmap_insert(&br->mirrors, &m->hmap_node, uuid_hash(&m->uuid));
3137 m->name = xstrdup(cfg->name);
3143 mirror_destroy(struct mirror *m)
3146 struct bridge *br = m->bridge;
3149 ofproto_mirror_unregister(br->ofproto, m);
3152 hmap_remove(&br->mirrors, &m->hmap_node);
3159 mirror_collect_ports(struct mirror *m,
3160 struct ovsrec_port **in_ports, int n_in_ports,
3161 void ***out_portsp, size_t *n_out_portsp)
3163 void **out_ports = xmalloc(n_in_ports * sizeof *out_ports);
3164 size_t n_out_ports = 0;
3167 for (i = 0; i < n_in_ports; i++) {
3168 const char *name = in_ports[i]->name;
3169 struct port *port = port_lookup(m->bridge, name);
3171 out_ports[n_out_ports++] = port;
3173 VLOG_WARN("bridge %s: mirror %s cannot match on nonexistent "
3174 "port %s", m->bridge->name, m->name, name);
3177 *out_portsp = out_ports;
3178 *n_out_portsp = n_out_ports;
3182 mirror_configure(struct mirror *m, const struct ovsrec_mirror *cfg)
3184 struct ofproto_mirror_settings s;
3187 if (strcmp(cfg->name, m->name)) {
3189 m->name = xstrdup(cfg->name);
3193 /* Get output port or VLAN. */
3194 if (cfg->output_port) {
3195 s.out_bundle = port_lookup(m->bridge, cfg->output_port->name);
3196 if (!s.out_bundle) {
3197 VLOG_ERR("bridge %s: mirror %s outputs to port not on bridge",
3198 m->bridge->name, m->name);
3201 s.out_vlan = UINT16_MAX;
3203 if (cfg->output_vlan) {
3204 VLOG_ERR("bridge %s: mirror %s specifies both output port and "
3205 "output vlan; ignoring output vlan",
3206 m->bridge->name, m->name);
3208 } else if (cfg->output_vlan) {
3209 /* The database should prevent invalid VLAN values. */
3210 s.out_bundle = NULL;
3211 s.out_vlan = *cfg->output_vlan;
3213 VLOG_ERR("bridge %s: mirror %s does not specify output; ignoring",
3214 m->bridge->name, m->name);
3218 /* Get port selection. */
3219 if (cfg->select_all) {
3220 size_t n_ports = hmap_count(&m->bridge->ports);
3221 void **ports = xmalloc(n_ports * sizeof *ports);
3226 HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) {
3236 /* Get ports, dropping ports that don't exist.
3237 * The IDL ensures that there are no duplicates. */
3238 mirror_collect_ports(m, cfg->select_src_port, cfg->n_select_src_port,
3239 &s.srcs, &s.n_srcs);
3240 mirror_collect_ports(m, cfg->select_dst_port, cfg->n_select_dst_port,
3241 &s.dsts, &s.n_dsts);
3244 /* Get VLAN selection. */
3245 s.src_vlans = vlan_bitmap_from_array(cfg->select_vlan, cfg->n_select_vlan);
3248 ofproto_mirror_register(m->bridge->ofproto, m, &s);
3251 if (s.srcs != s.dsts) {