1 /* Copyright (c) 2008, 2009, 2010, 2011 Nicira Networks
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
28 #include "dynamic-string.h"
35 #include "ofp-print.h"
37 #include "ofproto/ofproto.h"
38 #include "poll-loop.h"
41 #include "socket-util.h"
42 #include "stream-ssl.h"
44 #include "system-stats.h"
48 #include "vswitchd/vswitch-idl.h"
49 #include "xenserver.h"
51 #include "sflow_api.h"
52 #include "vlan-bitmap.h"
54 VLOG_DEFINE_THIS_MODULE(bridge);
56 COVERAGE_DEFINE(bridge_reconfigure);
59 /* These members are always valid. */
60 struct list port_elem; /* Element in struct port's "ifaces" list. */
61 struct hmap_node name_node; /* In struct bridge's "iface_by_name" hmap. */
62 struct port *port; /* Containing port. */
63 char *name; /* Host network device name. */
64 tag_type tag; /* Tag associated with this interface. */
66 /* These members are valid only after bridge_reconfigure() causes them to
68 struct hmap_node ofp_port_node; /* In struct bridge's "ifaces" hmap. */
69 int ofp_port; /* OpenFlow port number, -1 if unknown. */
70 struct netdev *netdev; /* Network device. */
71 const char *type; /* Usually same as cfg->type. */
72 const struct ovsrec_interface *cfg;
76 struct uuid uuid; /* UUID of this "mirror" record in database. */
77 struct hmap_node hmap_node; /* In struct bridge's "mirrors" hmap. */
78 struct bridge *bridge;
83 struct bridge *bridge;
84 struct hmap_node hmap_node; /* Element in struct bridge's "ports" hmap. */
87 const struct ovsrec_port *cfg;
89 /* An ordinary bridge port has 1 interface.
90 * A bridge port for bonding has at least 2 interfaces. */
91 struct list ifaces; /* List of "struct iface"s. */
95 struct hmap_node node; /* In 'all_bridges'. */
96 char *name; /* User-specified arbitrary name. */
97 char *type; /* Datapath type. */
98 uint8_t ea[ETH_ADDR_LEN]; /* Bridge Ethernet Address. */
99 uint8_t default_ea[ETH_ADDR_LEN]; /* Default MAC. */
100 const struct ovsrec_bridge *cfg;
102 /* OpenFlow switch processing. */
103 struct ofproto *ofproto; /* OpenFlow switch. */
106 struct hmap ports; /* "struct port"s indexed by name. */
107 struct hmap ifaces; /* "struct iface"s indexed by ofp_port. */
108 struct hmap iface_by_name; /* "struct iface"s indexed by name. */
110 /* Port mirroring. */
111 struct hmap mirrors; /* "struct mirror" indexed by UUID. */
113 /* Synthetic local port if necessary. */
114 struct ovsrec_port synth_local_port;
115 struct ovsrec_interface synth_local_iface;
116 struct ovsrec_interface *synth_local_ifacep;
119 /* All bridges, indexed by name. */
120 static struct hmap all_bridges = HMAP_INITIALIZER(&all_bridges);
122 /* OVSDB IDL used to obtain configuration. */
123 static struct ovsdb_idl *idl;
125 /* Each time this timer expires, the bridge fetches systems and interface
126 * statistics and pushes them into the database. */
127 #define STATS_INTERVAL (5 * 1000) /* In milliseconds. */
128 static long long int stats_timer = LLONG_MIN;
130 /* Stores the time after which rate limited statistics may be written to the
131 * database. Only updated when changes to the database require rate limiting.
133 #define DB_LIMIT_INTERVAL (1 * 1000) /* In milliseconds. */
134 static long long int db_limiter = LLONG_MIN;
136 static void add_del_bridges(const struct ovsrec_open_vswitch *);
137 static void bridge_del_ofprotos(void);
138 static bool bridge_add_ofprotos(struct bridge *);
139 static void bridge_create(const struct ovsrec_bridge *);
140 static void bridge_destroy(struct bridge *);
141 static struct bridge *bridge_lookup(const char *name);
142 static unixctl_cb_func bridge_unixctl_dump_flows;
143 static unixctl_cb_func bridge_unixctl_reconnect;
144 static size_t bridge_get_controllers(const struct bridge *br,
145 struct ovsrec_controller ***controllersp);
146 static void bridge_add_del_ports(struct bridge *);
147 static void bridge_add_ofproto_ports(struct bridge *);
148 static void bridge_del_ofproto_ports(struct bridge *);
149 static void bridge_refresh_ofp_port(struct bridge *);
150 static void bridge_configure_datapath_id(struct bridge *);
151 static void bridge_configure_netflow(struct bridge *);
152 static void bridge_configure_sflow(struct bridge *, int *sflow_bridge_number);
153 static void bridge_configure_remotes(struct bridge *,
154 const struct sockaddr_in *managers,
156 static void bridge_pick_local_hw_addr(struct bridge *,
157 uint8_t ea[ETH_ADDR_LEN],
158 struct iface **hw_addr_iface);
159 static uint64_t bridge_pick_datapath_id(struct bridge *,
160 const uint8_t bridge_ea[ETH_ADDR_LEN],
161 struct iface *hw_addr_iface);
162 static uint64_t dpid_from_hash(const void *, size_t nbytes);
163 static bool bridge_has_bond_fake_iface(const struct bridge *,
165 static bool port_is_bond_fake_iface(const struct port *);
167 static unixctl_cb_func qos_unixctl_show;
169 static struct port *port_create(struct bridge *, const struct ovsrec_port *);
170 static void port_add_ifaces(struct port *);
171 static void port_del_ifaces(struct port *);
172 static void port_destroy(struct port *);
173 static struct port *port_lookup(const struct bridge *, const char *name);
174 static void port_configure(struct port *);
175 static struct lacp_settings *port_configure_lacp(struct port *,
176 struct lacp_settings *);
177 static void port_configure_bond(struct port *, struct bond_settings *,
178 uint32_t *bond_stable_ids);
180 static void bridge_configure_mirrors(struct bridge *);
181 static struct mirror *mirror_create(struct bridge *,
182 const struct ovsrec_mirror *);
183 static void mirror_destroy(struct mirror *);
184 static bool mirror_configure(struct mirror *, const struct ovsrec_mirror *);
186 static void iface_configure_lacp(struct iface *, struct lacp_slave_settings *);
187 static struct iface *iface_create(struct port *port,
188 const struct ovsrec_interface *if_cfg);
189 static void iface_destroy(struct iface *);
190 static struct iface *iface_lookup(const struct bridge *, const char *name);
191 static struct iface *iface_find(const char *name);
192 static struct iface *iface_from_ofp_port(const struct bridge *,
194 static void iface_set_mac(struct iface *);
195 static void iface_set_ofport(const struct ovsrec_interface *, int64_t ofport);
196 static void iface_configure_qos(struct iface *, const struct ovsrec_qos *);
197 static void iface_configure_cfm(struct iface *);
198 static bool iface_refresh_cfm_stats(struct iface *iface);
199 static bool iface_get_carrier(const struct iface *);
200 static bool iface_is_synthetic(const struct iface *);
202 static void shash_from_ovs_idl_map(char **keys, char **values, size_t n,
204 static void shash_to_ovs_idl_map(struct shash *,
205 char ***keys, char ***values, size_t *n);
207 /* Public functions. */
209 /* Initializes the bridge module, configuring it to obtain its configuration
210 * from an OVSDB server accessed over 'remote', which should be a string in a
211 * form acceptable to ovsdb_idl_create(). */
213 bridge_init(const char *remote)
215 /* Create connection to database. */
216 idl = ovsdb_idl_create(remote, &ovsrec_idl_class, true);
218 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_cur_cfg);
219 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_statistics);
220 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_external_ids);
221 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_ovs_version);
222 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_db_version);
223 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_type);
224 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_version);
226 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_datapath_id);
227 ovsdb_idl_omit(idl, &ovsrec_bridge_col_external_ids);
229 ovsdb_idl_omit(idl, &ovsrec_port_col_external_ids);
230 ovsdb_idl_omit(idl, &ovsrec_port_col_fake_bridge);
232 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_admin_state);
233 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_duplex);
234 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_speed);
235 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_state);
236 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mtu);
237 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ofport);
238 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_statistics);
239 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_status);
240 ovsdb_idl_omit(idl, &ovsrec_interface_col_external_ids);
242 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_is_connected);
243 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_role);
244 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_status);
245 ovsdb_idl_omit(idl, &ovsrec_controller_col_external_ids);
247 ovsdb_idl_omit_alert(idl, &ovsrec_maintenance_point_col_fault);
249 ovsdb_idl_omit_alert(idl, &ovsrec_monitor_col_fault);
251 ovsdb_idl_omit(idl, &ovsrec_qos_col_external_ids);
253 ovsdb_idl_omit(idl, &ovsrec_queue_col_external_ids);
255 ovsdb_idl_omit(idl, &ovsrec_mirror_col_external_ids);
257 ovsdb_idl_omit(idl, &ovsrec_netflow_col_external_ids);
259 ovsdb_idl_omit(idl, &ovsrec_sflow_col_external_ids);
261 ovsdb_idl_omit(idl, &ovsrec_manager_col_external_ids);
262 ovsdb_idl_omit(idl, &ovsrec_manager_col_inactivity_probe);
263 ovsdb_idl_omit(idl, &ovsrec_manager_col_is_connected);
264 ovsdb_idl_omit(idl, &ovsrec_manager_col_max_backoff);
265 ovsdb_idl_omit(idl, &ovsrec_manager_col_status);
267 ovsdb_idl_omit(idl, &ovsrec_ssl_col_external_ids);
269 /* Register unixctl commands. */
270 unixctl_command_register("qos/show", qos_unixctl_show, NULL);
271 unixctl_command_register("bridge/dump-flows", bridge_unixctl_dump_flows,
273 unixctl_command_register("bridge/reconnect", bridge_unixctl_reconnect,
283 struct bridge *br, *next_br;
285 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
288 ovsdb_idl_destroy(idl);
291 /* Looks at the list of managers in 'ovs_cfg' and extracts their remote IP
292 * addresses and ports into '*managersp' and '*n_managersp'. The caller is
293 * responsible for freeing '*managersp' (with free()).
295 * You may be asking yourself "why does ovs-vswitchd care?", because
296 * ovsdb-server is responsible for connecting to the managers, and ovs-vswitchd
297 * should not be and in fact is not directly involved in that. But
298 * ovs-vswitchd needs to make sure that ovsdb-server can reach the managers, so
299 * it has to tell in-band control where the managers are to enable that.
300 * (Thus, only managers connected in-band are collected.)
303 collect_in_band_managers(const struct ovsrec_open_vswitch *ovs_cfg,
304 struct sockaddr_in **managersp, size_t *n_managersp)
306 struct sockaddr_in *managers = NULL;
307 size_t n_managers = 0;
311 /* Collect all of the potential targets from the "targets" columns of the
312 * rows pointed to by "manager_options", excluding any that are
315 for (i = 0; i < ovs_cfg->n_manager_options; i++) {
316 struct ovsrec_manager *m = ovs_cfg->manager_options[i];
318 if (m->connection_mode && !strcmp(m->connection_mode, "out-of-band")) {
319 sset_find_and_delete(&targets, m->target);
321 sset_add(&targets, m->target);
325 /* Now extract the targets' IP addresses. */
326 if (!sset_is_empty(&targets)) {
329 managers = xmalloc(sset_count(&targets) * sizeof *managers);
330 SSET_FOR_EACH (target, &targets) {
331 struct sockaddr_in *sin = &managers[n_managers];
333 if ((!strncmp(target, "tcp:", 4)
334 && inet_parse_active(target + 4, JSONRPC_TCP_PORT, sin)) ||
335 (!strncmp(target, "ssl:", 4)
336 && inet_parse_active(target + 4, JSONRPC_SSL_PORT, sin))) {
341 sset_destroy(&targets);
343 *managersp = managers;
344 *n_managersp = n_managers;
348 bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
350 struct sockaddr_in *managers;
351 struct bridge *br, *next;
352 int sflow_bridge_number;
355 COVERAGE_INC(bridge_reconfigure);
357 /* Create and destroy "struct bridge"s, "struct port"s, and "struct
358 * iface"s according to 'ovs_cfg', with only very minimal configuration
361 * This is purely an update to bridge data structures. Nothing is pushed
362 * down to ofproto or lower layers. */
363 add_del_bridges(ovs_cfg);
364 HMAP_FOR_EACH (br, node, &all_bridges) {
365 bridge_add_del_ports(br);
368 /* Delete all datapaths and datapath ports that are no longer configured.
370 * The kernel will reject any attempt to add a given port to a datapath if
371 * that port already belongs to a different datapath, so we must do all
372 * port deletions before any port additions. A datapath always has a
373 * "local port" so we must delete not-configured datapaths too. */
374 bridge_del_ofprotos();
375 HMAP_FOR_EACH (br, node, &all_bridges) {
377 bridge_del_ofproto_ports(br);
381 /* Create datapaths and datapath ports that are missing.
383 * After this is done, we have our final set of bridges, ports, and
384 * interfaces. Every "struct bridge" has an ofproto, every "struct port"
385 * has at least one iface, every "struct iface" has a valid ofp_port and
387 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
388 if (!br->ofproto && !bridge_add_ofprotos(br)) {
392 HMAP_FOR_EACH (br, node, &all_bridges) {
393 bridge_refresh_ofp_port(br);
394 bridge_add_ofproto_ports(br);
397 /* Complete the configuration. */
398 sflow_bridge_number = 0;
399 collect_in_band_managers(ovs_cfg, &managers, &n_managers);
400 HMAP_FOR_EACH (br, node, &all_bridges) {
403 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
406 port_configure(port);
408 HMAP_FOR_EACH (iface, ofp_port_node, &br->ifaces) {
409 iface_configure_cfm(iface);
410 iface_configure_qos(iface, port->cfg->qos);
411 iface_set_mac(iface);
414 bridge_configure_mirrors(br);
415 bridge_configure_datapath_id(br);
416 bridge_configure_remotes(br, managers, n_managers);
417 bridge_configure_netflow(br);
418 bridge_configure_sflow(br, &sflow_bridge_number);
422 /* ovs-vswitchd has completed initialization, so allow the process that
423 * forked us to exit successfully. */
424 daemonize_complete();
427 /* Iterate over all ofprotos and delete any of them that do not have a
428 * configured bridge or that are the wrong type. */
430 bridge_del_ofprotos(void)
438 ofproto_enumerate_types(&types);
439 SSET_FOR_EACH (type, &types) {
442 ofproto_enumerate_names(type, &names);
443 SSET_FOR_EACH (name, &names) {
444 struct bridge *br = bridge_lookup(name);
445 if (!br || strcmp(type, br->type)) {
446 ofproto_delete(name, type);
450 sset_destroy(&names);
451 sset_destroy(&types);
455 bridge_add_ofprotos(struct bridge *br)
457 int error = ofproto_create(br->name, br->type, &br->ofproto);
459 VLOG_ERR("failed to create bridge %s: %s", br->name, strerror(error));
466 port_configure(struct port *port)
468 const struct ovsrec_port *cfg = port->cfg;
469 struct bond_settings bond_settings;
470 struct lacp_settings lacp_settings;
471 struct ofproto_bundle_settings s;
479 s.slaves = xmalloc(list_size(&port->ifaces) * sizeof *s.slaves);
480 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
481 s.slaves[s.n_slaves++] = iface->ofp_port;
487 if (list_is_short(&port->ifaces)) {
488 if (*cfg->tag >= 0 && *cfg->tag <= 4095) {
490 VLOG_DBG("port %s: assigning VLAN tag %d", port->name, s.vlan);
493 /* It's possible that bonded, VLAN-tagged ports make sense. Maybe
494 * they even work as-is. But they have not been tested. */
495 VLOG_WARN("port %s: VLAN tags not supported on bonded ports",
500 /* Get VLAN trunks. */
502 if (s.vlan < 0 && cfg->n_trunks) {
503 s.trunks = vlan_bitmap_from_array(cfg->trunks, cfg->n_trunks);
504 } else if (s.vlan >= 0 && cfg->n_trunks) {
505 VLOG_ERR("port %s: ignoring trunks in favor of implicit vlan",
509 /* Get LACP settings. */
510 s.lacp = port_configure_lacp(port, &lacp_settings);
514 s.lacp_slaves = xmalloc(s.n_slaves * sizeof *s.lacp_slaves);
515 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
516 iface_configure_lacp(iface, &s.lacp_slaves[i++]);
519 s.lacp_slaves = NULL;
522 /* Get bond settings. */
523 if (s.n_slaves > 1) {
524 s.bond = &bond_settings;
525 s.bond_stable_ids = xmalloc(s.n_slaves * sizeof *s.bond_stable_ids);
526 port_configure_bond(port, &bond_settings, s.bond_stable_ids);
529 s.bond_stable_ids = NULL;
531 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
532 netdev_set_miimon_interval(iface->netdev, 0);
537 ofproto_bundle_register(port->bridge->ofproto, port, &s);
542 free(s.bond_stable_ids);
545 /* Pick local port hardware address and datapath ID for 'br'. */
547 bridge_configure_datapath_id(struct bridge *br)
549 uint8_t ea[ETH_ADDR_LEN];
551 struct iface *local_iface;
552 struct iface *hw_addr_iface;
555 bridge_pick_local_hw_addr(br, ea, &hw_addr_iface);
556 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
558 int error = netdev_set_etheraddr(local_iface->netdev, ea);
560 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
561 VLOG_ERR_RL(&rl, "bridge %s: failed to set bridge "
562 "Ethernet address: %s",
563 br->name, strerror(error));
566 memcpy(br->ea, ea, ETH_ADDR_LEN);
568 dpid = bridge_pick_datapath_id(br, ea, hw_addr_iface);
569 ofproto_set_datapath_id(br->ofproto, dpid);
571 dpid_string = xasprintf("%016"PRIx64, dpid);
572 ovsrec_bridge_set_datapath_id(br->cfg, dpid_string);
576 /* Set NetFlow configuration on 'br'. */
578 bridge_configure_netflow(struct bridge *br)
580 struct ovsrec_netflow *cfg = br->cfg->netflow;
581 struct netflow_options opts;
584 ofproto_set_netflow(br->ofproto, NULL);
588 memset(&opts, 0, sizeof opts);
590 /* Get default NetFlow configuration from datapath.
591 * Apply overrides from 'cfg'. */
592 ofproto_get_netflow_ids(br->ofproto, &opts.engine_type, &opts.engine_id);
593 if (cfg->engine_type) {
594 opts.engine_type = *cfg->engine_type;
596 if (cfg->engine_id) {
597 opts.engine_id = *cfg->engine_id;
600 /* Configure active timeout interval. */
601 opts.active_timeout = cfg->active_timeout;
602 if (!opts.active_timeout) {
603 opts.active_timeout = -1;
604 } else if (opts.active_timeout < 0) {
605 VLOG_WARN("bridge %s: active timeout interval set to negative "
606 "value, using default instead (%d seconds)", br->name,
607 NF_ACTIVE_TIMEOUT_DEFAULT);
608 opts.active_timeout = -1;
611 /* Add engine ID to interface number to disambiguate bridgs? */
612 opts.add_id_to_iface = cfg->add_id_to_interface;
613 if (opts.add_id_to_iface) {
614 if (opts.engine_id > 0x7f) {
615 VLOG_WARN("bridge %s: NetFlow port mangling may conflict with "
616 "another vswitch, choose an engine id less than 128",
619 if (hmap_count(&br->ports) > 508) {
620 VLOG_WARN("bridge %s: NetFlow port mangling will conflict with "
621 "another port when more than 508 ports are used",
627 sset_init(&opts.collectors);
628 sset_add_array(&opts.collectors, cfg->targets, cfg->n_targets);
631 if (ofproto_set_netflow(br->ofproto, &opts)) {
632 VLOG_ERR("bridge %s: problem setting netflow collectors", br->name);
634 sset_destroy(&opts.collectors);
637 /* Set sFlow configuration on 'br'. */
639 bridge_configure_sflow(struct bridge *br, int *sflow_bridge_number)
641 const struct ovsrec_sflow *cfg = br->cfg->sflow;
642 struct ovsrec_controller **controllers;
643 struct ofproto_sflow_options oso;
644 size_t n_controllers;
648 ofproto_set_sflow(br->ofproto, NULL);
652 memset(&oso, 0, sizeof oso);
654 sset_init(&oso.targets);
655 sset_add_array(&oso.targets, cfg->targets, cfg->n_targets);
657 oso.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
659 oso.sampling_rate = *cfg->sampling;
662 oso.polling_interval = SFL_DEFAULT_POLLING_INTERVAL;
664 oso.polling_interval = *cfg->polling;
667 oso.header_len = SFL_DEFAULT_HEADER_SIZE;
669 oso.header_len = *cfg->header;
672 oso.sub_id = (*sflow_bridge_number)++;
673 oso.agent_device = cfg->agent;
675 oso.control_ip = NULL;
676 n_controllers = bridge_get_controllers(br, &controllers);
677 for (i = 0; i < n_controllers; i++) {
678 if (controllers[i]->local_ip) {
679 oso.control_ip = controllers[i]->local_ip;
683 ofproto_set_sflow(br->ofproto, &oso);
685 sset_destroy(&oso.targets);
689 bridge_has_bond_fake_iface(const struct bridge *br, const char *name)
691 const struct port *port = port_lookup(br, name);
692 return port && port_is_bond_fake_iface(port);
696 port_is_bond_fake_iface(const struct port *port)
698 return port->cfg->bond_fake_iface && !list_is_short(&port->ifaces);
702 add_del_bridges(const struct ovsrec_open_vswitch *cfg)
704 struct bridge *br, *next;
708 /* Collect new bridges' names and types. */
710 for (i = 0; i < cfg->n_bridges; i++) {
711 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
712 if (!shash_add_once(&new_br, br_cfg->name, br_cfg)) {
713 VLOG_WARN("bridge %s specified twice", br_cfg->name);
717 /* Get rid of deleted bridges or those whose types have changed.
718 * Update 'cfg' of bridges that still exist. */
719 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
720 br->cfg = shash_find_data(&new_br, br->name);
721 if (!br->cfg || strcmp(br->type, ofproto_normalize_type(
722 br->cfg->datapath_type))) {
727 /* Add new bridges. */
728 for (i = 0; i < cfg->n_bridges; i++) {
729 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
730 struct bridge *br = bridge_lookup(br_cfg->name);
732 bridge_create(br_cfg);
736 shash_destroy(&new_br);
739 /* Delete each ofproto port on 'br' that doesn't have a corresponding "struct
742 * The kernel will reject any attempt to add a given port to a datapath if that
743 * port already belongs to a different datapath, so we must do all port
744 * deletions before any port additions. */
746 bridge_del_ofproto_ports(struct bridge *br)
748 struct ofproto_port_dump dump;
749 struct ofproto_port ofproto_port;
751 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
752 const char *name = ofproto_port.name;
757 /* Ignore the local port. We can't change it anyhow. */
758 if (!strcmp(name, br->name)) {
762 /* Get the type that 'ofproto_port' should have (ordinarily the
763 * type of its corresponding iface) or NULL if it should be
765 iface = iface_lookup(br, name);
766 type = (iface ? iface->type
767 : bridge_has_bond_fake_iface(br, name) ? "internal"
770 /* If it's the wrong type then delete the ofproto port. */
772 && !strcmp(ofproto_port.type, type)
773 && (!iface || !iface->netdev
774 || !strcmp(netdev_get_type(iface->netdev), type))) {
777 error = ofproto_port_del(br->ofproto, ofproto_port.ofp_port);
779 VLOG_WARN("bridge %s: failed to remove %s interface (%s)",
780 br->name, name, strerror(error));
783 netdev_close(iface->netdev);
784 iface->netdev = NULL;
790 iface_set_ofp_port(struct iface *iface, int ofp_port)
792 struct bridge *br = iface->port->bridge;
794 assert(iface->ofp_port < 0 && ofp_port >= 0);
795 iface->ofp_port = ofp_port;
796 hmap_insert(&br->ifaces, &iface->ofp_port_node, hash_int(ofp_port, 0));
797 iface_set_ofport(iface->cfg, ofp_port);
801 bridge_refresh_ofp_port(struct bridge *br)
803 struct ofproto_port_dump dump;
804 struct ofproto_port ofproto_port;
807 /* Clear all the "ofp_port"es. */
808 hmap_clear(&br->ifaces);
809 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
812 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
813 iface->ofp_port = -1;
817 /* Obtain the correct "ofp_port"s from ofproto. */
818 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
819 struct iface *iface = iface_lookup(br, ofproto_port.name);
821 if (iface->ofp_port >= 0) {
822 VLOG_WARN("bridge %s: interface %s reported twice",
823 br->name, ofproto_port.name);
824 } else if (iface_from_ofp_port(br, ofproto_port.ofp_port)) {
825 VLOG_WARN("bridge %s: interface %"PRIu16" reported twice",
826 br->name, ofproto_port.ofp_port);
828 iface_set_ofp_port(iface, ofproto_port.ofp_port);
834 /* Add an ofproto port for any "struct iface" that doesn't have one.
835 * Delete any "struct iface" for which this fails.
836 * Delete any "struct port" that thereby ends up with no ifaces. */
838 bridge_add_ofproto_ports(struct bridge *br)
840 struct port *port, *next_port;
842 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
843 struct iface *iface, *next_iface;
844 struct ofproto_port ofproto_port;
846 LIST_FOR_EACH_SAFE (iface, next_iface, port_elem, &port->ifaces) {
850 /* Open the netdev or reconfigure it. */
852 shash_from_ovs_idl_map(iface->cfg->key_options,
853 iface->cfg->value_options,
854 iface->cfg->n_options, &args);
855 if (!iface->netdev) {
856 struct netdev_options options;
857 options.name = iface->name;
858 options.type = iface->type;
859 options.args = &args;
860 options.ethertype = NETDEV_ETH_TYPE_NONE;
861 error = netdev_open(&options, &iface->netdev);
863 error = netdev_set_config(iface->netdev, &args);
865 shash_destroy(&args);
867 VLOG_WARN("could not %s network device %s (%s)",
868 iface->netdev ? "reconfigure" : "open",
869 iface->name, strerror(error));
872 /* Add the port, if necessary. */
873 if (iface->netdev && iface->ofp_port < 0) {
877 error = ofproto_port_add(br->ofproto, iface->netdev,
880 iface_set_ofp_port(iface, ofp_port);
882 netdev_close(iface->netdev);
883 iface->netdev = NULL;
887 /* Delete the iface if */
888 if (iface->netdev && iface->ofp_port >= 0) {
889 VLOG_DBG("bridge %s: interface %s is on port %d",
890 br->name, iface->name, iface->ofp_port);
893 VLOG_ERR("bridge %s: missing %s interface, dropping",
894 br->name, iface->name);
896 /* We already reported a related error, don't bother
899 iface_set_ofport(iface->cfg, -1);
900 iface_destroy(iface);
903 if (list_is_empty(&port->ifaces)) {
904 VLOG_WARN("%s port has no interfaces, dropping", port->name);
909 /* Add bond fake iface if necessary. */
910 if (port_is_bond_fake_iface(port)) {
911 if (ofproto_port_query_by_name(br->ofproto, port->name,
913 struct netdev_options options;
914 struct netdev *netdev;
917 options.name = port->name;
918 options.type = "internal";
920 options.ethertype = NETDEV_ETH_TYPE_NONE;
921 error = netdev_open(&options, &netdev);
923 ofproto_port_add(br->ofproto, netdev, NULL);
924 netdev_close(netdev);
926 VLOG_WARN("could not open network device %s (%s)",
927 port->name, strerror(error));
930 /* Already exists, nothing to do. */
931 ofproto_port_destroy(&ofproto_port);
938 get_ovsrec_key_value(const struct ovsdb_idl_row *row,
939 const struct ovsdb_idl_column *column,
942 const struct ovsdb_datum *datum;
943 union ovsdb_atom atom;
946 datum = ovsdb_idl_get(row, column, OVSDB_TYPE_STRING, OVSDB_TYPE_STRING);
947 atom.string = (char *) key;
948 idx = ovsdb_datum_find_key(datum, &atom, OVSDB_TYPE_STRING);
949 return idx == UINT_MAX ? NULL : datum->values[idx].string;
953 bridge_get_other_config(const struct ovsrec_bridge *br_cfg, const char *key)
955 return get_ovsrec_key_value(&br_cfg->header_,
956 &ovsrec_bridge_col_other_config, key);
960 bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
961 struct iface **hw_addr_iface)
967 *hw_addr_iface = NULL;
969 /* Did the user request a particular MAC? */
970 hwaddr = bridge_get_other_config(br->cfg, "hwaddr");
971 if (hwaddr && eth_addr_from_string(hwaddr, ea)) {
972 if (eth_addr_is_multicast(ea)) {
973 VLOG_ERR("bridge %s: cannot set MAC address to multicast "
974 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
975 } else if (eth_addr_is_zero(ea)) {
976 VLOG_ERR("bridge %s: cannot set MAC address to zero", br->name);
982 /* Otherwise choose the minimum non-local MAC address among all of the
984 memset(ea, 0xff, ETH_ADDR_LEN);
985 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
986 uint8_t iface_ea[ETH_ADDR_LEN];
987 struct iface *candidate;
990 /* Mirror output ports don't participate. */
991 if (ofproto_is_mirror_output_bundle(br->ofproto, port)) {
995 /* Choose the MAC address to represent the port. */
997 if (port->cfg->mac && eth_addr_from_string(port->cfg->mac, iface_ea)) {
998 /* Find the interface with this Ethernet address (if any) so that
999 * we can provide the correct devname to the caller. */
1000 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1001 uint8_t candidate_ea[ETH_ADDR_LEN];
1002 if (!netdev_get_etheraddr(candidate->netdev, candidate_ea)
1003 && eth_addr_equals(iface_ea, candidate_ea)) {
1008 /* Choose the interface whose MAC address will represent the port.
1009 * The Linux kernel bonding code always chooses the MAC address of
1010 * the first slave added to a bond, and the Fedora networking
1011 * scripts always add slaves to a bond in alphabetical order, so
1012 * for compatibility we choose the interface with the name that is
1013 * first in alphabetical order. */
1014 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1015 if (!iface || strcmp(candidate->name, iface->name) < 0) {
1020 /* The local port doesn't count (since we're trying to choose its
1021 * MAC address anyway). */
1022 if (iface->ofp_port == OFPP_LOCAL) {
1027 error = netdev_get_etheraddr(iface->netdev, iface_ea);
1029 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1030 VLOG_ERR_RL(&rl, "failed to obtain Ethernet address of %s: %s",
1031 iface->name, strerror(error));
1036 /* Compare against our current choice. */
1037 if (!eth_addr_is_multicast(iface_ea) &&
1038 !eth_addr_is_local(iface_ea) &&
1039 !eth_addr_is_reserved(iface_ea) &&
1040 !eth_addr_is_zero(iface_ea) &&
1041 eth_addr_compare_3way(iface_ea, ea) < 0)
1043 memcpy(ea, iface_ea, ETH_ADDR_LEN);
1044 *hw_addr_iface = iface;
1047 if (eth_addr_is_multicast(ea)) {
1048 memcpy(ea, br->default_ea, ETH_ADDR_LEN);
1049 *hw_addr_iface = NULL;
1050 VLOG_WARN("bridge %s: using default bridge Ethernet "
1051 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1053 VLOG_DBG("bridge %s: using bridge Ethernet address "ETH_ADDR_FMT,
1054 br->name, ETH_ADDR_ARGS(ea));
1058 /* Choose and returns the datapath ID for bridge 'br' given that the bridge
1059 * Ethernet address is 'bridge_ea'. If 'bridge_ea' is the Ethernet address of
1060 * an interface on 'br', then that interface must be passed in as
1061 * 'hw_addr_iface'; if 'bridge_ea' was derived some other way, then
1062 * 'hw_addr_iface' must be passed in as a null pointer. */
1064 bridge_pick_datapath_id(struct bridge *br,
1065 const uint8_t bridge_ea[ETH_ADDR_LEN],
1066 struct iface *hw_addr_iface)
1069 * The procedure for choosing a bridge MAC address will, in the most
1070 * ordinary case, also choose a unique MAC that we can use as a datapath
1071 * ID. In some special cases, though, multiple bridges will end up with
1072 * the same MAC address. This is OK for the bridges, but it will confuse
1073 * the OpenFlow controller, because each datapath needs a unique datapath
1076 * Datapath IDs must be unique. It is also very desirable that they be
1077 * stable from one run to the next, so that policy set on a datapath
1080 const char *datapath_id;
1083 datapath_id = bridge_get_other_config(br->cfg, "datapath-id");
1084 if (datapath_id && dpid_from_string(datapath_id, &dpid)) {
1088 if (hw_addr_iface) {
1090 if (!netdev_get_vlan_vid(hw_addr_iface->netdev, &vlan)) {
1092 * A bridge whose MAC address is taken from a VLAN network device
1093 * (that is, a network device created with vconfig(8) or similar
1094 * tool) will have the same MAC address as a bridge on the VLAN
1095 * device's physical network device.
1097 * Handle this case by hashing the physical network device MAC
1098 * along with the VLAN identifier.
1100 uint8_t buf[ETH_ADDR_LEN + 2];
1101 memcpy(buf, bridge_ea, ETH_ADDR_LEN);
1102 buf[ETH_ADDR_LEN] = vlan >> 8;
1103 buf[ETH_ADDR_LEN + 1] = vlan;
1104 return dpid_from_hash(buf, sizeof buf);
1107 * Assume that this bridge's MAC address is unique, since it
1108 * doesn't fit any of the cases we handle specially.
1113 * A purely internal bridge, that is, one that has no non-virtual
1114 * network devices on it at all, is more difficult because it has no
1115 * natural unique identifier at all.
1117 * When the host is a XenServer, we handle this case by hashing the
1118 * host's UUID with the name of the bridge. Names of bridges are
1119 * persistent across XenServer reboots, although they can be reused if
1120 * an internal network is destroyed and then a new one is later
1121 * created, so this is fairly effective.
1123 * When the host is not a XenServer, we punt by using a random MAC
1124 * address on each run.
1126 const char *host_uuid = xenserver_get_host_uuid();
1128 char *combined = xasprintf("%s,%s", host_uuid, br->name);
1129 dpid = dpid_from_hash(combined, strlen(combined));
1135 return eth_addr_to_uint64(bridge_ea);
1139 dpid_from_hash(const void *data, size_t n)
1141 uint8_t hash[SHA1_DIGEST_SIZE];
1143 BUILD_ASSERT_DECL(sizeof hash >= ETH_ADDR_LEN);
1144 sha1_bytes(data, n, hash);
1145 eth_addr_mark_random(hash);
1146 return eth_addr_to_uint64(hash);
1150 iface_refresh_status(struct iface *iface)
1154 enum netdev_flags flags;
1161 if (iface_is_synthetic(iface)) {
1167 if (!netdev_get_status(iface->netdev, &sh)) {
1169 char **keys, **values;
1171 shash_to_ovs_idl_map(&sh, &keys, &values, &n);
1172 ovsrec_interface_set_status(iface->cfg, keys, values, n);
1177 ovsrec_interface_set_status(iface->cfg, NULL, NULL, 0);
1180 shash_destroy_free_data(&sh);
1182 error = netdev_get_flags(iface->netdev, &flags);
1184 ovsrec_interface_set_admin_state(iface->cfg, flags & NETDEV_UP ? "up" : "down");
1187 ovsrec_interface_set_admin_state(iface->cfg, NULL);
1190 error = netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
1192 ovsrec_interface_set_duplex(iface->cfg,
1193 netdev_features_is_full_duplex(current)
1195 /* warning: uint64_t -> int64_t conversion */
1196 bps = netdev_features_to_bps(current);
1197 ovsrec_interface_set_link_speed(iface->cfg, &bps, 1);
1200 ovsrec_interface_set_duplex(iface->cfg, NULL);
1201 ovsrec_interface_set_link_speed(iface->cfg, NULL, 0);
1204 ovsrec_interface_set_link_state(iface->cfg,
1205 iface_get_carrier(iface) ? "up" : "down");
1207 error = netdev_get_mtu(iface->netdev, &mtu);
1208 if (!error && mtu != INT_MAX) {
1210 ovsrec_interface_set_mtu(iface->cfg, &mtu_64, 1);
1213 ovsrec_interface_set_mtu(iface->cfg, NULL, 0);
1217 /* Writes 'iface''s CFM statistics to the database. Returns true if anything
1218 * changed, false otherwise. */
1220 iface_refresh_cfm_stats(struct iface *iface)
1222 const struct ovsrec_monitor *mon;
1223 const struct cfm *cfm;
1224 bool changed = false;
1227 mon = iface->cfg->monitor;
1228 cfm = ofproto_port_get_cfm(iface->port->bridge->ofproto, iface->ofp_port);
1234 for (i = 0; i < mon->n_remote_mps; i++) {
1235 const struct ovsrec_maintenance_point *mp;
1236 const struct remote_mp *rmp;
1238 mp = mon->remote_mps[i];
1239 rmp = cfm_get_remote_mp(cfm, mp->mpid);
1241 if (mp->n_fault != 1 || mp->fault[0] != rmp->fault) {
1242 ovsrec_maintenance_point_set_fault(mp, &rmp->fault, 1);
1247 if (mon->n_fault != 1 || mon->fault[0] != cfm->fault) {
1248 ovsrec_monitor_set_fault(mon, &cfm->fault, 1);
1256 iface_refresh_lacp_stats(struct iface *iface)
1258 struct ofproto *ofproto = iface->port->bridge->ofproto;
1259 int old = iface->cfg->lacp_current ? *iface->cfg->lacp_current : -1;
1260 int new = ofproto_port_is_lacp_current(ofproto, iface->ofp_port);
1264 ovsrec_interface_set_lacp_current(iface->cfg, ¤t, new >= 0);
1270 iface_refresh_stats(struct iface *iface)
1276 static const struct iface_stat iface_stats[] = {
1277 { "rx_packets", offsetof(struct netdev_stats, rx_packets) },
1278 { "tx_packets", offsetof(struct netdev_stats, tx_packets) },
1279 { "rx_bytes", offsetof(struct netdev_stats, rx_bytes) },
1280 { "tx_bytes", offsetof(struct netdev_stats, tx_bytes) },
1281 { "rx_dropped", offsetof(struct netdev_stats, rx_dropped) },
1282 { "tx_dropped", offsetof(struct netdev_stats, tx_dropped) },
1283 { "rx_errors", offsetof(struct netdev_stats, rx_errors) },
1284 { "tx_errors", offsetof(struct netdev_stats, tx_errors) },
1285 { "rx_frame_err", offsetof(struct netdev_stats, rx_frame_errors) },
1286 { "rx_over_err", offsetof(struct netdev_stats, rx_over_errors) },
1287 { "rx_crc_err", offsetof(struct netdev_stats, rx_crc_errors) },
1288 { "collisions", offsetof(struct netdev_stats, collisions) },
1290 enum { N_STATS = ARRAY_SIZE(iface_stats) };
1291 const struct iface_stat *s;
1293 char *keys[N_STATS];
1294 int64_t values[N_STATS];
1297 struct netdev_stats stats;
1299 if (iface_is_synthetic(iface)) {
1303 /* Intentionally ignore return value, since errors will set 'stats' to
1304 * all-1s, and we will deal with that correctly below. */
1305 netdev_get_stats(iface->netdev, &stats);
1308 for (s = iface_stats; s < &iface_stats[N_STATS]; s++) {
1309 uint64_t value = *(uint64_t *) (((char *) &stats) + s->offset);
1310 if (value != UINT64_MAX) {
1317 ovsrec_interface_set_statistics(iface->cfg, keys, values, n);
1321 refresh_system_stats(const struct ovsrec_open_vswitch *cfg)
1323 struct ovsdb_datum datum;
1327 get_system_stats(&stats);
1329 ovsdb_datum_from_shash(&datum, &stats);
1330 ovsdb_idl_txn_write(&cfg->header_, &ovsrec_open_vswitch_col_statistics,
1334 static inline const char *
1335 nx_role_to_str(enum nx_role role)
1340 case NX_ROLE_MASTER:
1345 return "*** INVALID ROLE ***";
1350 bridge_refresh_controller_status(const struct bridge *br)
1353 const struct ovsrec_controller *cfg;
1355 ofproto_get_ofproto_controller_info(br->ofproto, &info);
1357 OVSREC_CONTROLLER_FOR_EACH(cfg, idl) {
1358 struct ofproto_controller_info *cinfo =
1359 shash_find_data(&info, cfg->target);
1362 ovsrec_controller_set_is_connected(cfg, cinfo->is_connected);
1363 ovsrec_controller_set_role(cfg, nx_role_to_str(cinfo->role));
1364 ovsrec_controller_set_status(cfg, (char **) cinfo->pairs.keys,
1365 (char **) cinfo->pairs.values,
1368 ovsrec_controller_set_is_connected(cfg, false);
1369 ovsrec_controller_set_role(cfg, NULL);
1370 ovsrec_controller_set_status(cfg, NULL, NULL, 0);
1374 ofproto_free_ofproto_controller_info(&info);
1380 const struct ovsrec_open_vswitch *cfg;
1382 bool datapath_destroyed;
1383 bool database_changed;
1386 /* Let each bridge do the work that it needs to do. */
1387 datapath_destroyed = false;
1388 HMAP_FOR_EACH (br, node, &all_bridges) {
1389 int error = ofproto_run(br->ofproto);
1391 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1392 VLOG_ERR_RL(&rl, "bridge %s: datapath was destroyed externally, "
1393 "forcing reconfiguration", br->name);
1394 datapath_destroyed = true;
1398 /* (Re)configure if necessary. */
1399 database_changed = ovsdb_idl_run(idl);
1400 cfg = ovsrec_open_vswitch_first(idl);
1402 /* Re-configure SSL. We do this on every trip through the main loop,
1403 * instead of just when the database changes, because the contents of the
1404 * key and certificate files can change without the database changing.
1406 * We do this before bridge_reconfigure() because that function might
1407 * initiate SSL connections and thus requires SSL to be configured. */
1408 if (cfg && cfg->ssl) {
1409 const struct ovsrec_ssl *ssl = cfg->ssl;
1411 stream_ssl_set_key_and_cert(ssl->private_key, ssl->certificate);
1412 stream_ssl_set_ca_cert_file(ssl->ca_cert, ssl->bootstrap_ca_cert);
1415 if (database_changed || datapath_destroyed) {
1417 struct ovsdb_idl_txn *txn = ovsdb_idl_txn_create(idl);
1419 bridge_reconfigure(cfg);
1421 ovsrec_open_vswitch_set_cur_cfg(cfg, cfg->next_cfg);
1422 ovsdb_idl_txn_commit(txn);
1423 ovsdb_idl_txn_destroy(txn); /* XXX */
1425 /* We still need to reconfigure to avoid dangling pointers to
1426 * now-destroyed ovsrec structures inside bridge data. */
1427 static const struct ovsrec_open_vswitch null_cfg;
1429 bridge_reconfigure(&null_cfg);
1433 /* Refresh system and interface stats if necessary. */
1434 if (time_msec() >= stats_timer) {
1436 struct ovsdb_idl_txn *txn;
1438 txn = ovsdb_idl_txn_create(idl);
1439 HMAP_FOR_EACH (br, node, &all_bridges) {
1442 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1443 struct iface *iface;
1445 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1446 iface_refresh_stats(iface);
1447 iface_refresh_status(iface);
1450 bridge_refresh_controller_status(br);
1452 refresh_system_stats(cfg);
1453 ovsdb_idl_txn_commit(txn);
1454 ovsdb_idl_txn_destroy(txn); /* XXX */
1457 stats_timer = time_msec() + STATS_INTERVAL;
1460 if (time_msec() >= db_limiter) {
1461 struct ovsdb_idl_txn *txn;
1462 bool changed = false;
1464 txn = ovsdb_idl_txn_create(idl);
1465 HMAP_FOR_EACH (br, node, &all_bridges) {
1468 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1469 struct iface *iface;
1471 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1472 changed = iface_refresh_cfm_stats(iface) || changed;
1473 changed = iface_refresh_lacp_stats(iface) || changed;
1479 db_limiter = time_msec() + DB_LIMIT_INTERVAL;
1482 ovsdb_idl_txn_commit(txn);
1483 ovsdb_idl_txn_destroy(txn);
1492 HMAP_FOR_EACH (br, node, &all_bridges) {
1493 ofproto_wait(br->ofproto);
1495 ovsdb_idl_wait(idl);
1496 poll_timer_wait_until(stats_timer);
1498 if (db_limiter > time_msec()) {
1499 poll_timer_wait_until(db_limiter);
1503 /* QoS unixctl user interface functions. */
1505 struct qos_unixctl_show_cbdata {
1507 struct iface *iface;
1511 qos_unixctl_show_cb(unsigned int queue_id,
1512 const struct shash *details,
1515 struct qos_unixctl_show_cbdata *data = aux;
1516 struct ds *ds = data->ds;
1517 struct iface *iface = data->iface;
1518 struct netdev_queue_stats stats;
1519 struct shash_node *node;
1522 ds_put_cstr(ds, "\n");
1524 ds_put_format(ds, "Queue %u:\n", queue_id);
1526 ds_put_cstr(ds, "Default:\n");
1529 SHASH_FOR_EACH (node, details) {
1530 ds_put_format(ds, "\t%s: %s\n", node->name, (char *)node->data);
1533 error = netdev_get_queue_stats(iface->netdev, queue_id, &stats);
1535 if (stats.tx_packets != UINT64_MAX) {
1536 ds_put_format(ds, "\ttx_packets: %"PRIu64"\n", stats.tx_packets);
1539 if (stats.tx_bytes != UINT64_MAX) {
1540 ds_put_format(ds, "\ttx_bytes: %"PRIu64"\n", stats.tx_bytes);
1543 if (stats.tx_errors != UINT64_MAX) {
1544 ds_put_format(ds, "\ttx_errors: %"PRIu64"\n", stats.tx_errors);
1547 ds_put_format(ds, "\tFailed to get statistics for queue %u: %s",
1548 queue_id, strerror(error));
1553 qos_unixctl_show(struct unixctl_conn *conn,
1554 const char *args, void *aux OVS_UNUSED)
1556 struct ds ds = DS_EMPTY_INITIALIZER;
1557 struct shash sh = SHASH_INITIALIZER(&sh);
1558 struct iface *iface;
1560 struct shash_node *node;
1561 struct qos_unixctl_show_cbdata data;
1564 iface = iface_find(args);
1566 unixctl_command_reply(conn, 501, "no such interface");
1570 netdev_get_qos(iface->netdev, &type, &sh);
1572 if (*type != '\0') {
1573 ds_put_format(&ds, "QoS: %s %s\n", iface->name, type);
1575 SHASH_FOR_EACH (node, &sh) {
1576 ds_put_format(&ds, "%s: %s\n", node->name, (char *)node->data);
1581 error = netdev_dump_queues(iface->netdev, qos_unixctl_show_cb, &data);
1584 ds_put_format(&ds, "failed to dump queues: %s", strerror(error));
1586 unixctl_command_reply(conn, 200, ds_cstr(&ds));
1588 ds_put_format(&ds, "QoS not configured on %s\n", iface->name);
1589 unixctl_command_reply(conn, 501, ds_cstr(&ds));
1592 shash_destroy_free_data(&sh);
1596 /* Bridge reconfiguration functions. */
1598 bridge_create(const struct ovsrec_bridge *br_cfg)
1602 assert(!bridge_lookup(br_cfg->name));
1603 br = xzalloc(sizeof *br);
1605 br->name = xstrdup(br_cfg->name);
1606 br->type = xstrdup(ofproto_normalize_type(br_cfg->datapath_type));
1609 /* Derive the default Ethernet address from the bridge's UUID. This should
1610 * be unique and it will be stable between ovs-vswitchd runs. */
1611 memcpy(br->default_ea, &br_cfg->header_.uuid, ETH_ADDR_LEN);
1612 eth_addr_mark_random(br->default_ea);
1614 hmap_init(&br->ports);
1615 hmap_init(&br->ifaces);
1616 hmap_init(&br->iface_by_name);
1617 hmap_init(&br->mirrors);
1619 hmap_insert(&all_bridges, &br->node, hash_string(br->name, 0));
1623 bridge_destroy(struct bridge *br)
1626 struct mirror *mirror, *next_mirror;
1627 struct port *port, *next_port;
1629 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
1632 HMAP_FOR_EACH_SAFE (mirror, next_mirror, hmap_node, &br->mirrors) {
1633 mirror_destroy(mirror);
1635 hmap_remove(&all_bridges, &br->node);
1636 ofproto_destroy(br->ofproto);
1637 hmap_destroy(&br->ifaces);
1638 hmap_destroy(&br->ports);
1639 hmap_destroy(&br->iface_by_name);
1640 hmap_destroy(&br->mirrors);
1647 static struct bridge *
1648 bridge_lookup(const char *name)
1652 HMAP_FOR_EACH_WITH_HASH (br, node, hash_string(name, 0), &all_bridges) {
1653 if (!strcmp(br->name, name)) {
1660 /* Handle requests for a listing of all flows known by the OpenFlow
1661 * stack, including those normally hidden. */
1663 bridge_unixctl_dump_flows(struct unixctl_conn *conn,
1664 const char *args, void *aux OVS_UNUSED)
1669 br = bridge_lookup(args);
1671 unixctl_command_reply(conn, 501, "Unknown bridge");
1676 ofproto_get_all_flows(br->ofproto, &results);
1678 unixctl_command_reply(conn, 200, ds_cstr(&results));
1679 ds_destroy(&results);
1682 /* "bridge/reconnect [BRIDGE]": makes BRIDGE drop all of its controller
1683 * connections and reconnect. If BRIDGE is not specified, then all bridges
1684 * drop their controller connections and reconnect. */
1686 bridge_unixctl_reconnect(struct unixctl_conn *conn,
1687 const char *args, void *aux OVS_UNUSED)
1690 if (args[0] != '\0') {
1691 br = bridge_lookup(args);
1693 unixctl_command_reply(conn, 501, "Unknown bridge");
1696 ofproto_reconnect_controllers(br->ofproto);
1698 HMAP_FOR_EACH (br, node, &all_bridges) {
1699 ofproto_reconnect_controllers(br->ofproto);
1702 unixctl_command_reply(conn, 200, NULL);
1706 bridge_get_controllers(const struct bridge *br,
1707 struct ovsrec_controller ***controllersp)
1709 struct ovsrec_controller **controllers;
1710 size_t n_controllers;
1712 controllers = br->cfg->controller;
1713 n_controllers = br->cfg->n_controller;
1715 if (n_controllers == 1 && !strcmp(controllers[0]->target, "none")) {
1721 *controllersp = controllers;
1723 return n_controllers;
1726 /* Adds and deletes "struct port"s and "struct iface"s under 'br' to match
1727 * those configured in 'br->cfg'. */
1729 bridge_add_del_ports(struct bridge *br)
1731 struct port *port, *next;
1732 struct shash_node *node;
1733 struct shash new_ports;
1736 /* Collect new ports. */
1737 shash_init(&new_ports);
1738 for (i = 0; i < br->cfg->n_ports; i++) {
1739 const char *name = br->cfg->ports[i]->name;
1740 if (!shash_add_once(&new_ports, name, br->cfg->ports[i])) {
1741 VLOG_WARN("bridge %s: %s specified twice as bridge port",
1745 if (bridge_get_controllers(br, NULL)
1746 && !shash_find(&new_ports, br->name)) {
1747 VLOG_WARN("bridge %s: no port named %s, synthesizing one",
1748 br->name, br->name);
1750 br->synth_local_port.interfaces = &br->synth_local_ifacep;
1751 br->synth_local_port.n_interfaces = 1;
1752 br->synth_local_port.name = br->name;
1754 br->synth_local_iface.name = br->name;
1755 br->synth_local_iface.type = "internal";
1757 br->synth_local_ifacep = &br->synth_local_iface;
1759 shash_add(&new_ports, br->name, &br->synth_local_port);
1762 /* Get rid of deleted ports.
1763 * Get rid of deleted interfaces on ports that still exist.
1764 * Update 'cfg' of ports that still exist. */
1765 HMAP_FOR_EACH_SAFE (port, next, hmap_node, &br->ports) {
1766 port->cfg = shash_find_data(&new_ports, port->name);
1770 port_del_ifaces(port);
1774 /* Create new ports.
1775 * Add new interfaces to existing ports. */
1776 SHASH_FOR_EACH (node, &new_ports) {
1777 struct port *port = port_lookup(br, node->name);
1779 struct ovsrec_port *cfg = node->data;
1780 port = port_create(br, cfg);
1782 port_add_ifaces(port);
1783 if (list_is_empty(&port->ifaces)) {
1784 VLOG_WARN("bridge %s: port %s has no interfaces, dropping",
1785 br->name, port->name);
1789 shash_destroy(&new_ports);
1792 /* Initializes 'oc' appropriately as a management service controller for
1795 * The caller must free oc->target when it is no longer needed. */
1797 bridge_ofproto_controller_for_mgmt(const struct bridge *br,
1798 struct ofproto_controller *oc)
1800 oc->target = xasprintf("punix:%s/%s.mgmt", ovs_rundir(), br->name);
1801 oc->max_backoff = 0;
1802 oc->probe_interval = 60;
1803 oc->band = OFPROTO_OUT_OF_BAND;
1805 oc->burst_limit = 0;
1808 /* Converts ovsrec_controller 'c' into an ofproto_controller in 'oc'. */
1810 bridge_ofproto_controller_from_ovsrec(const struct ovsrec_controller *c,
1811 struct ofproto_controller *oc)
1813 oc->target = c->target;
1814 oc->max_backoff = c->max_backoff ? *c->max_backoff / 1000 : 8;
1815 oc->probe_interval = c->inactivity_probe ? *c->inactivity_probe / 1000 : 5;
1816 oc->band = (!c->connection_mode || !strcmp(c->connection_mode, "in-band")
1817 ? OFPROTO_IN_BAND : OFPROTO_OUT_OF_BAND);
1818 oc->rate_limit = c->controller_rate_limit ? *c->controller_rate_limit : 0;
1819 oc->burst_limit = (c->controller_burst_limit
1820 ? *c->controller_burst_limit : 0);
1823 /* Configures the IP stack for 'br''s local interface properly according to the
1824 * configuration in 'c'. */
1826 bridge_configure_local_iface_netdev(struct bridge *br,
1827 struct ovsrec_controller *c)
1829 struct netdev *netdev;
1830 struct in_addr mask, gateway;
1832 struct iface *local_iface;
1835 /* If there's no local interface or no IP address, give up. */
1836 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
1837 if (!local_iface || !c->local_ip || !inet_aton(c->local_ip, &ip)) {
1841 /* Bring up the local interface. */
1842 netdev = local_iface->netdev;
1843 netdev_turn_flags_on(netdev, NETDEV_UP, true);
1845 /* Configure the IP address and netmask. */
1846 if (!c->local_netmask
1847 || !inet_aton(c->local_netmask, &mask)
1849 mask.s_addr = guess_netmask(ip.s_addr);
1851 if (!netdev_set_in4(netdev, ip, mask)) {
1852 VLOG_INFO("bridge %s: configured IP address "IP_FMT", netmask "IP_FMT,
1853 br->name, IP_ARGS(&ip.s_addr), IP_ARGS(&mask.s_addr));
1856 /* Configure the default gateway. */
1857 if (c->local_gateway
1858 && inet_aton(c->local_gateway, &gateway)
1859 && gateway.s_addr) {
1860 if (!netdev_add_router(netdev, gateway)) {
1861 VLOG_INFO("bridge %s: configured gateway "IP_FMT,
1862 br->name, IP_ARGS(&gateway.s_addr));
1868 bridge_configure_remotes(struct bridge *br,
1869 const struct sockaddr_in *managers, size_t n_managers)
1871 const char *disable_ib_str, *queue_id_str;
1872 bool disable_in_band = false;
1875 struct ovsrec_controller **controllers;
1876 size_t n_controllers;
1878 enum ofproto_fail_mode fail_mode;
1880 struct ofproto_controller *ocs;
1884 /* Check if we should disable in-band control on this bridge. */
1885 disable_ib_str = bridge_get_other_config(br->cfg, "disable-in-band");
1886 if (disable_ib_str && !strcmp(disable_ib_str, "true")) {
1887 disable_in_band = true;
1890 /* Set OpenFlow queue ID for in-band control. */
1891 queue_id_str = bridge_get_other_config(br->cfg, "in-band-queue");
1892 queue_id = queue_id_str ? strtol(queue_id_str, NULL, 10) : -1;
1893 ofproto_set_in_band_queue(br->ofproto, queue_id);
1895 if (disable_in_band) {
1896 ofproto_set_extra_in_band_remotes(br->ofproto, NULL, 0);
1898 ofproto_set_extra_in_band_remotes(br->ofproto, managers, n_managers);
1901 n_controllers = bridge_get_controllers(br, &controllers);
1903 ocs = xmalloc((n_controllers + 1) * sizeof *ocs);
1906 bridge_ofproto_controller_for_mgmt(br, &ocs[n_ocs++]);
1907 for (i = 0; i < n_controllers; i++) {
1908 struct ovsrec_controller *c = controllers[i];
1910 if (!strncmp(c->target, "punix:", 6)
1911 || !strncmp(c->target, "unix:", 5)) {
1912 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1914 /* Prevent remote ovsdb-server users from accessing arbitrary Unix
1915 * domain sockets and overwriting arbitrary local files. */
1916 VLOG_ERR_RL(&rl, "bridge %s: not adding Unix domain socket "
1917 "controller \"%s\" due to possibility for remote "
1918 "exploit", br->name, c->target);
1922 bridge_configure_local_iface_netdev(br, c);
1923 bridge_ofproto_controller_from_ovsrec(c, &ocs[n_ocs]);
1924 if (disable_in_band) {
1925 ocs[n_ocs].band = OFPROTO_OUT_OF_BAND;
1930 ofproto_set_controllers(br->ofproto, ocs, n_ocs);
1931 free(ocs[0].target); /* From bridge_ofproto_controller_for_mgmt(). */
1934 /* Set the fail-mode. */
1935 fail_mode = !br->cfg->fail_mode
1936 || !strcmp(br->cfg->fail_mode, "standalone")
1937 ? OFPROTO_FAIL_STANDALONE
1938 : OFPROTO_FAIL_SECURE;
1939 ofproto_set_fail_mode(br->ofproto, fail_mode);
1941 /* Configure OpenFlow controller connection snooping. */
1942 if (!ofproto_has_snoops(br->ofproto)) {
1946 sset_add_and_free(&snoops, xasprintf("punix:%s/%s.snoop",
1947 ovs_rundir(), br->name));
1948 ofproto_set_snoops(br->ofproto, &snoops);
1949 sset_destroy(&snoops);
1953 /* Port functions. */
1955 static struct port *
1956 port_create(struct bridge *br, const struct ovsrec_port *cfg)
1960 port = xzalloc(sizeof *port);
1962 port->name = xstrdup(cfg->name);
1964 list_init(&port->ifaces);
1966 hmap_insert(&br->ports, &port->hmap_node, hash_string(port->name, 0));
1968 VLOG_INFO("created port %s on bridge %s", port->name, br->name);
1974 get_port_other_config(const struct ovsrec_port *port, const char *key,
1975 const char *default_value)
1979 value = get_ovsrec_key_value(&port->header_, &ovsrec_port_col_other_config,
1981 return value ? value : default_value;
1985 get_interface_other_config(const struct ovsrec_interface *iface,
1986 const char *key, const char *default_value)
1990 value = get_ovsrec_key_value(&iface->header_,
1991 &ovsrec_interface_col_other_config, key);
1992 return value ? value : default_value;
1995 /* Deletes interfaces from 'port' that are no longer configured for it. */
1997 port_del_ifaces(struct port *port)
1999 struct iface *iface, *next;
2000 struct sset new_ifaces;
2003 /* Collect list of new interfaces. */
2004 sset_init(&new_ifaces);
2005 for (i = 0; i < port->cfg->n_interfaces; i++) {
2006 const char *name = port->cfg->interfaces[i]->name;
2007 const char *type = port->cfg->interfaces[i]->name;
2008 if (strcmp(type, "null")) {
2009 sset_add(&new_ifaces, name);
2013 /* Get rid of deleted interfaces. */
2014 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2015 if (!sset_contains(&new_ifaces, iface->name)) {
2016 iface_destroy(iface);
2020 sset_destroy(&new_ifaces);
2023 /* Adds new interfaces to 'port' and updates 'type' and 'cfg' members of
2026 port_add_ifaces(struct port *port)
2028 struct shash new_ifaces;
2029 struct shash_node *node;
2032 /* Collect new ifaces. */
2033 shash_init(&new_ifaces);
2034 for (i = 0; i < port->cfg->n_interfaces; i++) {
2035 const struct ovsrec_interface *cfg = port->cfg->interfaces[i];
2036 if (strcmp(cfg->type, "null")
2037 && !shash_add_once(&new_ifaces, cfg->name, cfg)) {
2038 VLOG_WARN("port %s: %s specified twice as port interface",
2039 port->name, cfg->name);
2040 iface_set_ofport(cfg, -1);
2044 /* Create new interfaces.
2045 * Update interface types and 'cfg' members. */
2046 SHASH_FOR_EACH (node, &new_ifaces) {
2047 const struct ovsrec_interface *cfg = node->data;
2048 const char *iface_name = node->name;
2049 struct iface *iface;
2051 iface = iface_lookup(port->bridge, iface_name);
2053 iface = iface_create(port, cfg);
2058 /* Determine interface type. The local port always has type
2059 * "internal". Other ports take their type from the database and
2060 * default to "system" if none is specified. */
2061 iface->type = (!strcmp(iface_name, port->bridge->name) ? "internal"
2062 : cfg->type[0] ? cfg->type
2065 shash_destroy(&new_ifaces);
2069 port_destroy(struct port *port)
2072 struct bridge *br = port->bridge;
2073 struct iface *iface, *next;
2076 ofproto_bundle_unregister(br->ofproto, port);
2079 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2080 iface_destroy(iface);
2083 hmap_remove(&br->ports, &port->hmap_node);
2085 VLOG_INFO("destroyed port %s on bridge %s", port->name, br->name);
2092 static struct port *
2093 port_lookup(const struct bridge *br, const char *name)
2097 HMAP_FOR_EACH_WITH_HASH (port, hmap_node, hash_string(name, 0),
2099 if (!strcmp(port->name, name)) {
2107 enable_lacp(struct port *port, bool *activep)
2109 if (!port->cfg->lacp) {
2110 /* XXX when LACP implementation has been sufficiently tested, enable by
2111 * default and make active on bonded ports. */
2113 } else if (!strcmp(port->cfg->lacp, "off")) {
2115 } else if (!strcmp(port->cfg->lacp, "active")) {
2118 } else if (!strcmp(port->cfg->lacp, "passive")) {
2122 VLOG_WARN("port %s: unknown LACP mode %s",
2123 port->name, port->cfg->lacp);
2128 static struct lacp_settings *
2129 port_configure_lacp(struct port *port, struct lacp_settings *s)
2131 const char *lacp_time;
2132 long long int custom_time;
2135 if (!enable_lacp(port, &s->active)) {
2139 s->name = port->name;
2140 memcpy(s->id, port->bridge->ea, ETH_ADDR_LEN);
2142 /* Prefer bondable links if unspecified. */
2143 priority = atoi(get_port_other_config(port->cfg, "lacp-system-priority",
2145 s->priority = (priority > 0 && priority <= UINT16_MAX
2147 : UINT16_MAX - !list_is_short(&port->ifaces));
2149 s->heartbeat = !strcmp(get_port_other_config(port->cfg,
2154 lacp_time = get_port_other_config(port->cfg, "lacp-time", "slow");
2155 custom_time = atoi(lacp_time);
2156 if (!strcmp(lacp_time, "fast")) {
2157 s->lacp_time = LACP_TIME_FAST;
2158 } else if (!strcmp(lacp_time, "slow")) {
2159 s->lacp_time = LACP_TIME_SLOW;
2160 } else if (custom_time > 0) {
2161 s->lacp_time = LACP_TIME_CUSTOM;
2162 s->custom_time = custom_time;
2164 s->lacp_time = LACP_TIME_SLOW;
2171 iface_configure_lacp(struct iface *iface, struct lacp_slave_settings *s)
2173 int priority, portid, key;
2175 portid = atoi(get_interface_other_config(iface->cfg, "lacp-port-id", "0"));
2176 priority = atoi(get_interface_other_config(iface->cfg,
2177 "lacp-port-priority", "0"));
2178 key = atoi(get_interface_other_config(iface->cfg, "lacp-aggregation-key",
2181 if (portid <= 0 || portid > UINT16_MAX) {
2182 portid = iface->ofp_port;
2185 if (priority <= 0 || priority > UINT16_MAX) {
2186 priority = UINT16_MAX;
2189 if (key < 0 || key > UINT16_MAX) {
2193 s->name = iface->name;
2195 s->priority = priority;
2200 port_configure_bond(struct port *port, struct bond_settings *s,
2201 uint32_t *bond_stable_ids)
2203 const char *detect_s;
2204 struct iface *iface;
2205 int miimon_interval;
2208 s->name = port->name;
2209 s->balance = BM_SLB;
2210 if (port->cfg->bond_mode
2211 && !bond_mode_from_string(&s->balance, port->cfg->bond_mode)) {
2212 VLOG_WARN("port %s: unknown bond_mode %s, defaulting to %s",
2213 port->name, port->cfg->bond_mode,
2214 bond_mode_to_string(s->balance));
2217 miimon_interval = atoi(get_port_other_config(port->cfg,
2218 "bond-miimon-interval", "0"));
2219 if (miimon_interval <= 0) {
2220 miimon_interval = 200;
2223 detect_s = get_port_other_config(port->cfg, "bond-detect-mode", "carrier");
2224 if (!strcmp(detect_s, "carrier")) {
2225 miimon_interval = 0;
2226 } else if (strcmp(detect_s, "miimon")) {
2227 VLOG_WARN("port %s: unsupported bond-detect-mode %s, "
2228 "defaulting to carrier", port->name, detect_s);
2229 miimon_interval = 0;
2232 s->up_delay = MAX(0, port->cfg->bond_updelay);
2233 s->down_delay = MAX(0, port->cfg->bond_downdelay);
2234 s->basis = atoi(get_port_other_config(port->cfg, "bond-hash-basis", "0"));
2235 s->rebalance_interval = atoi(
2236 get_port_other_config(port->cfg, "bond-rebalance-interval", "10000"));
2237 if (s->rebalance_interval < 1000) {
2238 s->rebalance_interval = 1000;
2241 s->fake_iface = port->cfg->bond_fake_iface;
2244 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
2245 long long stable_id;
2247 stable_id = atoll(get_interface_other_config(iface->cfg,
2248 "bond-stable-id", "0"));
2249 if (stable_id <= 0 || stable_id >= UINT32_MAX) {
2250 stable_id = iface->ofp_port;
2252 bond_stable_ids[i++] = stable_id;
2254 netdev_set_miimon_interval(iface->netdev, miimon_interval);
2258 /* Interface functions. */
2260 static struct iface *
2261 iface_create(struct port *port, const struct ovsrec_interface *if_cfg)
2263 struct bridge *br = port->bridge;
2264 struct iface *iface;
2265 char *name = if_cfg->name;
2267 iface = xzalloc(sizeof *iface);
2269 iface->name = xstrdup(name);
2270 iface->ofp_port = -1;
2271 iface->tag = tag_create_random();
2272 iface->netdev = NULL;
2273 iface->cfg = if_cfg;
2275 hmap_insert(&br->iface_by_name, &iface->name_node, hash_string(name, 0));
2277 list_push_back(&port->ifaces, &iface->port_elem);
2279 VLOG_DBG("attached network device %s to port %s", iface->name, port->name);
2285 iface_destroy(struct iface *iface)
2288 struct port *port = iface->port;
2289 struct bridge *br = port->bridge;
2291 if (br->ofproto && iface->ofp_port >= 0) {
2292 ofproto_port_unregister(br->ofproto, iface->ofp_port);
2295 if (iface->ofp_port >= 0) {
2296 hmap_remove(&br->ifaces, &iface->ofp_port_node);
2299 list_remove(&iface->port_elem);
2300 hmap_remove(&br->iface_by_name, &iface->name_node);
2302 netdev_close(iface->netdev);
2309 static struct iface *
2310 iface_lookup(const struct bridge *br, const char *name)
2312 struct iface *iface;
2314 HMAP_FOR_EACH_WITH_HASH (iface, name_node, hash_string(name, 0),
2315 &br->iface_by_name) {
2316 if (!strcmp(iface->name, name)) {
2324 static struct iface *
2325 iface_find(const char *name)
2327 const struct bridge *br;
2329 HMAP_FOR_EACH (br, node, &all_bridges) {
2330 struct iface *iface = iface_lookup(br, name);
2339 static struct iface *
2340 iface_from_ofp_port(const struct bridge *br, uint16_t ofp_port)
2342 struct iface *iface;
2344 HMAP_FOR_EACH_IN_BUCKET (iface, ofp_port_node,
2345 hash_int(ofp_port, 0), &br->ifaces) {
2346 if (iface->ofp_port == ofp_port) {
2353 /* Set Ethernet address of 'iface', if one is specified in the configuration
2356 iface_set_mac(struct iface *iface)
2358 uint8_t ea[ETH_ADDR_LEN];
2360 if (!strcmp(iface->type, "internal")
2361 && iface->cfg->mac && eth_addr_from_string(iface->cfg->mac, ea)) {
2362 if (iface->ofp_port == OFPP_LOCAL) {
2363 VLOG_ERR("interface %s: ignoring mac in Interface record "
2364 "(use Bridge record to set local port's mac)",
2366 } else if (eth_addr_is_multicast(ea)) {
2367 VLOG_ERR("interface %s: cannot set MAC to multicast address",
2370 int error = netdev_set_etheraddr(iface->netdev, ea);
2372 VLOG_ERR("interface %s: setting MAC failed (%s)",
2373 iface->name, strerror(error));
2379 /* Sets the ofport column of 'if_cfg' to 'ofport'. */
2381 iface_set_ofport(const struct ovsrec_interface *if_cfg, int64_t ofport)
2383 if (if_cfg && !ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
2384 ovsrec_interface_set_ofport(if_cfg, &ofport, 1);
2388 /* Adds the 'n' key-value pairs in 'keys' in 'values' to 'shash'.
2390 * The value strings in '*shash' are taken directly from values[], not copied,
2391 * so the caller should not modify or free them. */
2393 shash_from_ovs_idl_map(char **keys, char **values, size_t n,
2394 struct shash *shash)
2399 for (i = 0; i < n; i++) {
2400 shash_add(shash, keys[i], values[i]);
2404 /* Creates 'keys' and 'values' arrays from 'shash'.
2406 * Sets 'keys' and 'values' to heap allocated arrays representing the key-value
2407 * pairs in 'shash'. The caller takes ownership of 'keys' and 'values'. They
2408 * are populated with with strings taken directly from 'shash' and thus have
2409 * the same ownership of the key-value pairs in shash.
2412 shash_to_ovs_idl_map(struct shash *shash,
2413 char ***keys, char ***values, size_t *n)
2417 struct shash_node *sn;
2419 count = shash_count(shash);
2421 k = xmalloc(count * sizeof *k);
2422 v = xmalloc(count * sizeof *v);
2425 SHASH_FOR_EACH(sn, shash) {
2436 struct iface_delete_queues_cbdata {
2437 struct netdev *netdev;
2438 const struct ovsdb_datum *queues;
2442 queue_ids_include(const struct ovsdb_datum *queues, int64_t target)
2444 union ovsdb_atom atom;
2446 atom.integer = target;
2447 return ovsdb_datum_find_key(queues, &atom, OVSDB_TYPE_INTEGER) != UINT_MAX;
2451 iface_delete_queues(unsigned int queue_id,
2452 const struct shash *details OVS_UNUSED, void *cbdata_)
2454 struct iface_delete_queues_cbdata *cbdata = cbdata_;
2456 if (!queue_ids_include(cbdata->queues, queue_id)) {
2457 netdev_delete_queue(cbdata->netdev, queue_id);
2462 iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos)
2464 if (!qos || qos->type[0] == '\0' || qos->n_queues < 1) {
2465 netdev_set_qos(iface->netdev, NULL, NULL);
2467 struct iface_delete_queues_cbdata cbdata;
2468 struct shash details;
2471 /* Configure top-level Qos for 'iface'. */
2472 shash_from_ovs_idl_map(qos->key_other_config, qos->value_other_config,
2473 qos->n_other_config, &details);
2474 netdev_set_qos(iface->netdev, qos->type, &details);
2475 shash_destroy(&details);
2477 /* Deconfigure queues that were deleted. */
2478 cbdata.netdev = iface->netdev;
2479 cbdata.queues = ovsrec_qos_get_queues(qos, OVSDB_TYPE_INTEGER,
2481 netdev_dump_queues(iface->netdev, iface_delete_queues, &cbdata);
2483 /* Configure queues for 'iface'. */
2484 for (i = 0; i < qos->n_queues; i++) {
2485 const struct ovsrec_queue *queue = qos->value_queues[i];
2486 unsigned int queue_id = qos->key_queues[i];
2488 shash_from_ovs_idl_map(queue->key_other_config,
2489 queue->value_other_config,
2490 queue->n_other_config, &details);
2491 netdev_set_queue(iface->netdev, queue_id, &details);
2492 shash_destroy(&details);
2496 netdev_set_policing(iface->netdev,
2497 iface->cfg->ingress_policing_rate,
2498 iface->cfg->ingress_policing_burst);
2502 iface_configure_cfm(struct iface *iface)
2506 uint16_t *remote_mps;
2507 struct ovsrec_monitor *mon;
2509 mon = iface->cfg->monitor;
2512 ofproto_port_clear_cfm(iface->port->bridge->ofproto, iface->ofp_port);
2516 cfm.mpid = mon->mpid;
2517 cfm.interval = mon->interval ? *mon->interval : 1000;
2518 cfm.name = iface->name;
2520 remote_mps = xzalloc(mon->n_remote_mps * sizeof *remote_mps);
2521 for(i = 0; i < mon->n_remote_mps; i++) {
2522 remote_mps[i] = mon->remote_mps[i]->mpid;
2525 ofproto_port_set_cfm(iface->port->bridge->ofproto, iface->ofp_port,
2526 &cfm, remote_mps, mon->n_remote_mps);
2530 /* Read carrier or miimon status directly from 'iface''s netdev, according to
2531 * how 'iface''s port is configured.
2533 * Returns true if 'iface' is up, false otherwise. */
2535 iface_get_carrier(const struct iface *iface)
2538 return netdev_get_carrier(iface->netdev);
2541 /* Returns true if 'iface' is synthetic, that is, if we constructed it locally
2542 * instead of obtaining it from the database. */
2544 iface_is_synthetic(const struct iface *iface)
2546 return ovsdb_idl_row_is_synthetic(&iface->cfg->header_);
2549 /* Port mirroring. */
2551 static struct mirror *
2552 mirror_find_by_uuid(struct bridge *br, const struct uuid *uuid)
2556 HMAP_FOR_EACH_IN_BUCKET (m, hmap_node, uuid_hash(uuid), &br->mirrors) {
2557 if (uuid_equals(uuid, &m->uuid)) {
2565 bridge_configure_mirrors(struct bridge *br)
2567 const struct ovsdb_datum *mc;
2568 unsigned long *flood_vlans;
2569 struct mirror *m, *next;
2572 /* Get rid of deleted mirrors. */
2573 mc = ovsrec_bridge_get_mirrors(br->cfg, OVSDB_TYPE_UUID);
2574 HMAP_FOR_EACH_SAFE (m, next, hmap_node, &br->mirrors) {
2575 union ovsdb_atom atom;
2577 atom.uuid = m->uuid;
2578 if (ovsdb_datum_find_key(mc, &atom, OVSDB_TYPE_UUID) == UINT_MAX) {
2583 /* Add new mirrors and reconfigure existing ones. */
2584 for (i = 0; i < br->cfg->n_mirrors; i++) {
2585 const struct ovsrec_mirror *cfg = br->cfg->mirrors[i];
2586 struct mirror *m = mirror_find_by_uuid(br, &cfg->header_.uuid);
2588 m = mirror_create(br, cfg);
2590 if (!mirror_configure(m, cfg)) {
2595 /* Update flooded vlans (for RSPAN). */
2596 flood_vlans = vlan_bitmap_from_array(br->cfg->flood_vlans,
2597 br->cfg->n_flood_vlans);
2598 ofproto_set_flood_vlans(br->ofproto, flood_vlans);
2599 bitmap_free(flood_vlans);
2602 static struct mirror *
2603 mirror_create(struct bridge *br, const struct ovsrec_mirror *cfg)
2607 m = xzalloc(sizeof *m);
2608 m->uuid = cfg->header_.uuid;
2609 hmap_insert(&br->mirrors, &m->hmap_node, uuid_hash(&m->uuid));
2611 m->name = xstrdup(cfg->name);
2617 mirror_destroy(struct mirror *m)
2620 struct bridge *br = m->bridge;
2623 ofproto_mirror_unregister(br->ofproto, m);
2626 hmap_remove(&br->mirrors, &m->hmap_node);
2633 mirror_collect_ports(struct mirror *m,
2634 struct ovsrec_port **in_ports, int n_in_ports,
2635 void ***out_portsp, size_t *n_out_portsp)
2637 void **out_ports = xmalloc(n_in_ports * sizeof *out_ports);
2638 size_t n_out_ports = 0;
2641 for (i = 0; i < n_in_ports; i++) {
2642 const char *name = in_ports[i]->name;
2643 struct port *port = port_lookup(m->bridge, name);
2645 out_ports[n_out_ports++] = port;
2647 VLOG_WARN("bridge %s: mirror %s cannot match on nonexistent "
2648 "port %s", m->bridge->name, m->name, name);
2651 *out_portsp = out_ports;
2652 *n_out_portsp = n_out_ports;
2656 mirror_configure(struct mirror *m, const struct ovsrec_mirror *cfg)
2658 struct ofproto_mirror_settings s;
2661 if (strcmp(cfg->name, m->name)) {
2663 m->name = xstrdup(cfg->name);
2667 /* Get output port or VLAN. */
2668 if (cfg->output_port) {
2669 s.out_bundle = port_lookup(m->bridge, cfg->output_port->name);
2670 if (!s.out_bundle) {
2671 VLOG_ERR("bridge %s: mirror %s outputs to port not on bridge",
2672 m->bridge->name, m->name);
2675 s.out_vlan = UINT16_MAX;
2677 if (cfg->output_vlan) {
2678 VLOG_ERR("bridge %s: mirror %s specifies both output port and "
2679 "output vlan; ignoring output vlan",
2680 m->bridge->name, m->name);
2682 } else if (cfg->output_vlan) {
2683 /* The database should prevent invalid VLAN values. */
2684 s.out_bundle = NULL;
2685 s.out_vlan = *cfg->output_vlan;
2687 VLOG_ERR("bridge %s: mirror %s does not specify output; ignoring",
2688 m->bridge->name, m->name);
2692 /* Get port selection. */
2693 if (cfg->select_all) {
2694 size_t n_ports = hmap_count(&m->bridge->ports);
2695 void **ports = xmalloc(n_ports * sizeof *ports);
2700 HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) {
2710 /* Get ports, dropping ports that don't exist.
2711 * The IDL ensures that there are no duplicates. */
2712 mirror_collect_ports(m, cfg->select_src_port, cfg->n_select_src_port,
2713 &s.srcs, &s.n_srcs);
2714 mirror_collect_ports(m, cfg->select_dst_port, cfg->n_select_dst_port,
2715 &s.dsts, &s.n_dsts);
2719 /* Get VLAN selection. */
2720 s.src_vlans = vlan_bitmap_from_array(cfg->select_vlan, cfg->n_select_vlan);
2723 ofproto_mirror_register(m->bridge->ofproto, m, &s);
2726 if (s.srcs != s.dsts) {