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 cfm_unixctl_show;
168 static unixctl_cb_func qos_unixctl_show;
170 static struct port *port_create(struct bridge *, const struct ovsrec_port *);
171 static void port_add_ifaces(struct port *);
172 static void port_del_ifaces(struct port *);
173 static void port_destroy(struct port *);
174 static struct port *port_lookup(const struct bridge *, const char *name);
175 static void port_configure(struct port *);
176 static struct lacp_settings *port_configure_lacp(struct port *,
177 struct lacp_settings *);
178 static void port_configure_bond(struct port *, struct bond_settings *);
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("cfm/show", cfm_unixctl_show, NULL);
271 unixctl_command_register("qos/show", qos_unixctl_show, NULL);
272 unixctl_command_register("bridge/dump-flows", bridge_unixctl_dump_flows,
274 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 port_configure_bond(port, &bond_settings);
525 s.bond = &bond_settings;
531 ofproto_bundle_register(port->bridge->ofproto, port, &s);
538 /* Pick local port hardware address and datapath ID for 'br'. */
540 bridge_configure_datapath_id(struct bridge *br)
542 uint8_t ea[ETH_ADDR_LEN];
544 struct iface *local_iface;
545 struct iface *hw_addr_iface;
548 bridge_pick_local_hw_addr(br, ea, &hw_addr_iface);
549 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
551 int error = netdev_set_etheraddr(local_iface->netdev, ea);
553 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
554 VLOG_ERR_RL(&rl, "bridge %s: failed to set bridge "
555 "Ethernet address: %s",
556 br->name, strerror(error));
559 memcpy(br->ea, ea, ETH_ADDR_LEN);
561 dpid = bridge_pick_datapath_id(br, ea, hw_addr_iface);
562 ofproto_set_datapath_id(br->ofproto, dpid);
564 dpid_string = xasprintf("%016"PRIx64, dpid);
565 ovsrec_bridge_set_datapath_id(br->cfg, dpid_string);
569 /* Set NetFlow configuration on 'br'. */
571 bridge_configure_netflow(struct bridge *br)
573 struct ovsrec_netflow *cfg = br->cfg->netflow;
574 struct netflow_options opts;
577 ofproto_set_netflow(br->ofproto, NULL);
581 memset(&opts, 0, sizeof opts);
583 /* Get default NetFlow configuration from datapath.
584 * Apply overrides from 'cfg'. */
585 ofproto_get_netflow_ids(br->ofproto, &opts.engine_type, &opts.engine_id);
586 if (cfg->engine_type) {
587 opts.engine_type = *cfg->engine_type;
589 if (cfg->engine_id) {
590 opts.engine_id = *cfg->engine_id;
593 /* Configure active timeout interval. */
594 opts.active_timeout = cfg->active_timeout;
595 if (!opts.active_timeout) {
596 opts.active_timeout = -1;
597 } else if (opts.active_timeout < 0) {
598 VLOG_WARN("bridge %s: active timeout interval set to negative "
599 "value, using default instead (%d seconds)", br->name,
600 NF_ACTIVE_TIMEOUT_DEFAULT);
601 opts.active_timeout = -1;
604 /* Add engine ID to interface number to disambiguate bridgs? */
605 opts.add_id_to_iface = cfg->add_id_to_interface;
606 if (opts.add_id_to_iface) {
607 if (opts.engine_id > 0x7f) {
608 VLOG_WARN("bridge %s: NetFlow port mangling may conflict with "
609 "another vswitch, choose an engine id less than 128",
612 if (hmap_count(&br->ports) > 508) {
613 VLOG_WARN("bridge %s: NetFlow port mangling will conflict with "
614 "another port when more than 508 ports are used",
620 sset_init(&opts.collectors);
621 sset_add_array(&opts.collectors, cfg->targets, cfg->n_targets);
624 if (ofproto_set_netflow(br->ofproto, &opts)) {
625 VLOG_ERR("bridge %s: problem setting netflow collectors", br->name);
627 sset_destroy(&opts.collectors);
630 /* Set sFlow configuration on 'br'. */
632 bridge_configure_sflow(struct bridge *br, int *sflow_bridge_number)
634 const struct ovsrec_sflow *cfg = br->cfg->sflow;
635 struct ovsrec_controller **controllers;
636 struct ofproto_sflow_options oso;
637 size_t n_controllers;
641 ofproto_set_sflow(br->ofproto, NULL);
645 memset(&oso, 0, sizeof oso);
647 sset_init(&oso.targets);
648 sset_add_array(&oso.targets, cfg->targets, cfg->n_targets);
650 oso.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
652 oso.sampling_rate = *cfg->sampling;
655 oso.polling_interval = SFL_DEFAULT_POLLING_INTERVAL;
657 oso.polling_interval = *cfg->polling;
660 oso.header_len = SFL_DEFAULT_HEADER_SIZE;
662 oso.header_len = *cfg->header;
665 oso.sub_id = (*sflow_bridge_number)++;
666 oso.agent_device = cfg->agent;
668 oso.control_ip = NULL;
669 n_controllers = bridge_get_controllers(br, &controllers);
670 for (i = 0; i < n_controllers; i++) {
671 if (controllers[i]->local_ip) {
672 oso.control_ip = controllers[i]->local_ip;
676 ofproto_set_sflow(br->ofproto, &oso);
678 sset_destroy(&oso.targets);
682 bridge_has_bond_fake_iface(const struct bridge *br, const char *name)
684 const struct port *port = port_lookup(br, name);
685 return port && port_is_bond_fake_iface(port);
689 port_is_bond_fake_iface(const struct port *port)
691 return port->cfg->bond_fake_iface && !list_is_short(&port->ifaces);
695 add_del_bridges(const struct ovsrec_open_vswitch *cfg)
697 struct bridge *br, *next;
701 /* Collect new bridges' names and types. */
703 for (i = 0; i < cfg->n_bridges; i++) {
704 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
705 if (!shash_add_once(&new_br, br_cfg->name, br_cfg)) {
706 VLOG_WARN("bridge %s specified twice", br_cfg->name);
710 /* Get rid of deleted bridges or those whose types have changed.
711 * Update 'cfg' of bridges that still exist. */
712 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
713 br->cfg = shash_find_data(&new_br, br->name);
714 if (!br->cfg || strcmp(br->type, ofproto_normalize_type(
715 br->cfg->datapath_type))) {
720 /* Add new bridges. */
721 for (i = 0; i < cfg->n_bridges; i++) {
722 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
723 struct bridge *br = bridge_lookup(br_cfg->name);
725 bridge_create(br_cfg);
729 shash_destroy(&new_br);
732 /* Delete each ofproto port on 'br' that doesn't have a corresponding "struct
735 * The kernel will reject any attempt to add a given port to a datapath if that
736 * port already belongs to a different datapath, so we must do all port
737 * deletions before any port additions. */
739 bridge_del_ofproto_ports(struct bridge *br)
741 struct ofproto_port_dump dump;
742 struct ofproto_port ofproto_port;
744 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
745 const char *name = ofproto_port.name;
750 /* Ignore the local port. We can't change it anyhow. */
751 if (!strcmp(name, br->name)) {
755 /* Get the type that 'ofproto_port' should have (ordinarily the
756 * type of its corresponding iface) or NULL if it should be
758 iface = iface_lookup(br, name);
759 type = (iface ? iface->type
760 : bridge_has_bond_fake_iface(br, name) ? "internal"
763 /* If it's the wrong type then delete the ofproto port. */
765 && !strcmp(ofproto_port.type, type)
766 && (!iface || !iface->netdev
767 || !strcmp(netdev_get_type(iface->netdev), type))) {
770 error = ofproto_port_del(br->ofproto, ofproto_port.ofp_port);
772 VLOG_WARN("bridge %s: failed to remove %s interface (%s)",
773 br->name, name, strerror(error));
776 netdev_close(iface->netdev);
777 iface->netdev = NULL;
783 iface_set_ofp_port(struct iface *iface, int ofp_port)
785 struct bridge *br = iface->port->bridge;
787 assert(iface->ofp_port < 0 && ofp_port >= 0);
788 iface->ofp_port = ofp_port;
789 hmap_insert(&br->ifaces, &iface->ofp_port_node, hash_int(ofp_port, 0));
794 bridge_refresh_ofp_port(struct bridge *br)
796 struct ofproto_port_dump dump;
797 struct ofproto_port ofproto_port;
800 /* Clear all the "ofp_port"es. */
801 hmap_clear(&br->ifaces);
802 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
805 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
806 iface->ofp_port = -1;
810 /* Obtain the correct "ofp_port"s from ofproto. */
811 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
812 struct iface *iface = iface_lookup(br, ofproto_port.name);
814 if (iface->ofp_port >= 0) {
815 VLOG_WARN("bridge %s: interface %s reported twice",
816 br->name, ofproto_port.name);
817 } else if (iface_from_ofp_port(br, ofproto_port.ofp_port)) {
818 VLOG_WARN("bridge %s: interface %"PRIu16" reported twice",
819 br->name, ofproto_port.ofp_port);
821 iface_set_ofp_port(iface, ofproto_port.ofp_port);
827 /* Add an ofproto port for any "struct iface" that doesn't have one.
828 * Delete any "struct iface" for which this fails.
829 * Delete any "struct port" that thereby ends up with no ifaces. */
831 bridge_add_ofproto_ports(struct bridge *br)
833 struct port *port, *next_port;
835 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
836 struct iface *iface, *next_iface;
837 struct ofproto_port ofproto_port;
839 LIST_FOR_EACH_SAFE (iface, next_iface, port_elem, &port->ifaces) {
843 /* Open the netdev or reconfigure it. */
845 shash_from_ovs_idl_map(iface->cfg->key_options,
846 iface->cfg->value_options,
847 iface->cfg->n_options, &args);
848 if (!iface->netdev) {
849 struct netdev_options options;
850 options.name = iface->name;
851 options.type = iface->type;
852 options.args = &args;
853 options.ethertype = NETDEV_ETH_TYPE_NONE;
854 error = netdev_open(&options, &iface->netdev);
856 error = netdev_set_config(iface->netdev, &args);
858 shash_destroy(&args);
860 VLOG_WARN("could not %s network device %s (%s)",
861 iface->netdev ? "reconfigure" : "open",
862 iface->name, strerror(error));
865 /* Add the port, if necessary. */
866 if (iface->netdev && iface->ofp_port < 0) {
870 error = ofproto_port_add(br->ofproto, iface->netdev,
873 iface_set_ofp_port(iface, ofp_port);
875 netdev_close(iface->netdev);
876 iface->netdev = NULL;
880 /* Delete the iface if */
881 if (iface->netdev && iface->ofp_port >= 0) {
882 VLOG_DBG("bridge %s: interface %s is on port %d",
883 br->name, iface->name, iface->ofp_port);
886 VLOG_ERR("bridge %s: missing %s interface, dropping",
887 br->name, iface->name);
889 /* We already reported a related error, don't bother
892 iface_set_ofport(iface->cfg, -1);
893 iface_destroy(iface);
896 if (list_is_empty(&port->ifaces)) {
897 VLOG_WARN("%s port has no interfaces, dropping", port->name);
902 /* Add bond fake iface if necessary. */
903 if (port_is_bond_fake_iface(port)) {
904 if (ofproto_port_query_by_name(br->ofproto, port->name,
906 struct netdev_options options;
907 struct netdev *netdev;
910 options.name = port->name;
911 options.type = "internal";
913 options.ethertype = NETDEV_ETH_TYPE_NONE;
914 error = netdev_open(&options, &netdev);
916 ofproto_port_add(br->ofproto, netdev, NULL);
917 netdev_close(netdev);
919 VLOG_WARN("could not open network device %s (%s)",
920 port->name, strerror(error));
923 /* Already exists, nothing to do. */
924 ofproto_port_destroy(&ofproto_port);
926 ofproto_port_destroy(&ofproto_port);
932 get_ovsrec_key_value(const struct ovsdb_idl_row *row,
933 const struct ovsdb_idl_column *column,
936 const struct ovsdb_datum *datum;
937 union ovsdb_atom atom;
940 datum = ovsdb_idl_get(row, column, OVSDB_TYPE_STRING, OVSDB_TYPE_STRING);
941 atom.string = (char *) key;
942 idx = ovsdb_datum_find_key(datum, &atom, OVSDB_TYPE_STRING);
943 return idx == UINT_MAX ? NULL : datum->values[idx].string;
947 bridge_get_other_config(const struct ovsrec_bridge *br_cfg, const char *key)
949 return get_ovsrec_key_value(&br_cfg->header_,
950 &ovsrec_bridge_col_other_config, key);
954 bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
955 struct iface **hw_addr_iface)
961 *hw_addr_iface = NULL;
963 /* Did the user request a particular MAC? */
964 hwaddr = bridge_get_other_config(br->cfg, "hwaddr");
965 if (hwaddr && eth_addr_from_string(hwaddr, ea)) {
966 if (eth_addr_is_multicast(ea)) {
967 VLOG_ERR("bridge %s: cannot set MAC address to multicast "
968 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
969 } else if (eth_addr_is_zero(ea)) {
970 VLOG_ERR("bridge %s: cannot set MAC address to zero", br->name);
976 /* Otherwise choose the minimum non-local MAC address among all of the
978 memset(ea, 0xff, ETH_ADDR_LEN);
979 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
980 uint8_t iface_ea[ETH_ADDR_LEN];
981 struct iface *candidate;
984 /* Mirror output ports don't participate. */
985 if (ofproto_is_mirror_output_bundle(br->ofproto, port)) {
989 /* Choose the MAC address to represent the port. */
991 if (port->cfg->mac && eth_addr_from_string(port->cfg->mac, iface_ea)) {
992 /* Find the interface with this Ethernet address (if any) so that
993 * we can provide the correct devname to the caller. */
994 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
995 uint8_t candidate_ea[ETH_ADDR_LEN];
996 if (!netdev_get_etheraddr(candidate->netdev, candidate_ea)
997 && eth_addr_equals(iface_ea, candidate_ea)) {
1002 /* Choose the interface whose MAC address will represent the port.
1003 * The Linux kernel bonding code always chooses the MAC address of
1004 * the first slave added to a bond, and the Fedora networking
1005 * scripts always add slaves to a bond in alphabetical order, so
1006 * for compatibility we choose the interface with the name that is
1007 * first in alphabetical order. */
1008 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1009 if (!iface || strcmp(candidate->name, iface->name) < 0) {
1014 /* The local port doesn't count (since we're trying to choose its
1015 * MAC address anyway). */
1016 if (iface->ofp_port == OFPP_LOCAL) {
1021 error = netdev_get_etheraddr(iface->netdev, iface_ea);
1023 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1024 VLOG_ERR_RL(&rl, "failed to obtain Ethernet address of %s: %s",
1025 iface->name, strerror(error));
1030 /* Compare against our current choice. */
1031 if (!eth_addr_is_multicast(iface_ea) &&
1032 !eth_addr_is_local(iface_ea) &&
1033 !eth_addr_is_reserved(iface_ea) &&
1034 !eth_addr_is_zero(iface_ea) &&
1035 eth_addr_compare_3way(iface_ea, ea) < 0)
1037 memcpy(ea, iface_ea, ETH_ADDR_LEN);
1038 *hw_addr_iface = iface;
1041 if (eth_addr_is_multicast(ea)) {
1042 memcpy(ea, br->default_ea, ETH_ADDR_LEN);
1043 *hw_addr_iface = NULL;
1044 VLOG_WARN("bridge %s: using default bridge Ethernet "
1045 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1047 VLOG_DBG("bridge %s: using bridge Ethernet address "ETH_ADDR_FMT,
1048 br->name, ETH_ADDR_ARGS(ea));
1052 /* Choose and returns the datapath ID for bridge 'br' given that the bridge
1053 * Ethernet address is 'bridge_ea'. If 'bridge_ea' is the Ethernet address of
1054 * an interface on 'br', then that interface must be passed in as
1055 * 'hw_addr_iface'; if 'bridge_ea' was derived some other way, then
1056 * 'hw_addr_iface' must be passed in as a null pointer. */
1058 bridge_pick_datapath_id(struct bridge *br,
1059 const uint8_t bridge_ea[ETH_ADDR_LEN],
1060 struct iface *hw_addr_iface)
1063 * The procedure for choosing a bridge MAC address will, in the most
1064 * ordinary case, also choose a unique MAC that we can use as a datapath
1065 * ID. In some special cases, though, multiple bridges will end up with
1066 * the same MAC address. This is OK for the bridges, but it will confuse
1067 * the OpenFlow controller, because each datapath needs a unique datapath
1070 * Datapath IDs must be unique. It is also very desirable that they be
1071 * stable from one run to the next, so that policy set on a datapath
1074 const char *datapath_id;
1077 datapath_id = bridge_get_other_config(br->cfg, "datapath-id");
1078 if (datapath_id && dpid_from_string(datapath_id, &dpid)) {
1082 if (hw_addr_iface) {
1084 if (!netdev_get_vlan_vid(hw_addr_iface->netdev, &vlan)) {
1086 * A bridge whose MAC address is taken from a VLAN network device
1087 * (that is, a network device created with vconfig(8) or similar
1088 * tool) will have the same MAC address as a bridge on the VLAN
1089 * device's physical network device.
1091 * Handle this case by hashing the physical network device MAC
1092 * along with the VLAN identifier.
1094 uint8_t buf[ETH_ADDR_LEN + 2];
1095 memcpy(buf, bridge_ea, ETH_ADDR_LEN);
1096 buf[ETH_ADDR_LEN] = vlan >> 8;
1097 buf[ETH_ADDR_LEN + 1] = vlan;
1098 return dpid_from_hash(buf, sizeof buf);
1101 * Assume that this bridge's MAC address is unique, since it
1102 * doesn't fit any of the cases we handle specially.
1107 * A purely internal bridge, that is, one that has no non-virtual
1108 * network devices on it at all, is more difficult because it has no
1109 * natural unique identifier at all.
1111 * When the host is a XenServer, we handle this case by hashing the
1112 * host's UUID with the name of the bridge. Names of bridges are
1113 * persistent across XenServer reboots, although they can be reused if
1114 * an internal network is destroyed and then a new one is later
1115 * created, so this is fairly effective.
1117 * When the host is not a XenServer, we punt by using a random MAC
1118 * address on each run.
1120 const char *host_uuid = xenserver_get_host_uuid();
1122 char *combined = xasprintf("%s,%s", host_uuid, br->name);
1123 dpid = dpid_from_hash(combined, strlen(combined));
1129 return eth_addr_to_uint64(bridge_ea);
1133 dpid_from_hash(const void *data, size_t n)
1135 uint8_t hash[SHA1_DIGEST_SIZE];
1137 BUILD_ASSERT_DECL(sizeof hash >= ETH_ADDR_LEN);
1138 sha1_bytes(data, n, hash);
1139 eth_addr_mark_random(hash);
1140 return eth_addr_to_uint64(hash);
1144 iface_refresh_status(struct iface *iface)
1148 enum netdev_flags flags;
1155 if (iface_is_synthetic(iface)) {
1161 if (!netdev_get_status(iface->netdev, &sh)) {
1163 char **keys, **values;
1165 shash_to_ovs_idl_map(&sh, &keys, &values, &n);
1166 ovsrec_interface_set_status(iface->cfg, keys, values, n);
1171 ovsrec_interface_set_status(iface->cfg, NULL, NULL, 0);
1174 shash_destroy_free_data(&sh);
1176 error = netdev_get_flags(iface->netdev, &flags);
1178 ovsrec_interface_set_admin_state(iface->cfg, flags & NETDEV_UP ? "up" : "down");
1181 ovsrec_interface_set_admin_state(iface->cfg, NULL);
1184 error = netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
1186 ovsrec_interface_set_duplex(iface->cfg,
1187 netdev_features_is_full_duplex(current)
1189 /* warning: uint64_t -> int64_t conversion */
1190 bps = netdev_features_to_bps(current);
1191 ovsrec_interface_set_link_speed(iface->cfg, &bps, 1);
1194 ovsrec_interface_set_duplex(iface->cfg, NULL);
1195 ovsrec_interface_set_link_speed(iface->cfg, NULL, 0);
1198 ovsrec_interface_set_link_state(iface->cfg,
1199 iface_get_carrier(iface) ? "up" : "down");
1201 error = netdev_get_mtu(iface->netdev, &mtu);
1202 if (!error && mtu != INT_MAX) {
1204 ovsrec_interface_set_mtu(iface->cfg, &mtu_64, 1);
1207 ovsrec_interface_set_mtu(iface->cfg, NULL, 0);
1211 /* Writes 'iface''s CFM statistics to the database. Returns true if anything
1212 * changed, false otherwise. */
1214 iface_refresh_cfm_stats(struct iface *iface)
1216 const struct ovsrec_monitor *mon;
1217 const struct cfm *cfm;
1218 bool changed = false;
1221 mon = iface->cfg->monitor;
1222 cfm = ofproto_port_get_cfm(iface->port->bridge->ofproto, iface->ofp_port);
1228 for (i = 0; i < mon->n_remote_mps; i++) {
1229 const struct ovsrec_maintenance_point *mp;
1230 const struct remote_mp *rmp;
1232 mp = mon->remote_mps[i];
1233 rmp = cfm_get_remote_mp(cfm, mp->mpid);
1235 if (mp->n_fault != 1 || mp->fault[0] != rmp->fault) {
1236 ovsrec_maintenance_point_set_fault(mp, &rmp->fault, 1);
1241 if (mon->n_fault != 1 || mon->fault[0] != cfm->fault) {
1242 ovsrec_monitor_set_fault(mon, &cfm->fault, 1);
1250 iface_refresh_lacp_stats(struct iface *iface)
1252 struct ofproto *ofproto = iface->port->bridge->ofproto;
1253 int old = iface->cfg->lacp_current ? *iface->cfg->lacp_current : -1;
1254 int new = ofproto_port_is_lacp_current(ofproto, iface->ofp_port);
1258 ovsrec_interface_set_lacp_current(iface->cfg, ¤t, new >= 0);
1264 iface_refresh_stats(struct iface *iface)
1270 static const struct iface_stat iface_stats[] = {
1271 { "rx_packets", offsetof(struct netdev_stats, rx_packets) },
1272 { "tx_packets", offsetof(struct netdev_stats, tx_packets) },
1273 { "rx_bytes", offsetof(struct netdev_stats, rx_bytes) },
1274 { "tx_bytes", offsetof(struct netdev_stats, tx_bytes) },
1275 { "rx_dropped", offsetof(struct netdev_stats, rx_dropped) },
1276 { "tx_dropped", offsetof(struct netdev_stats, tx_dropped) },
1277 { "rx_errors", offsetof(struct netdev_stats, rx_errors) },
1278 { "tx_errors", offsetof(struct netdev_stats, tx_errors) },
1279 { "rx_frame_err", offsetof(struct netdev_stats, rx_frame_errors) },
1280 { "rx_over_err", offsetof(struct netdev_stats, rx_over_errors) },
1281 { "rx_crc_err", offsetof(struct netdev_stats, rx_crc_errors) },
1282 { "collisions", offsetof(struct netdev_stats, collisions) },
1284 enum { N_STATS = ARRAY_SIZE(iface_stats) };
1285 const struct iface_stat *s;
1287 char *keys[N_STATS];
1288 int64_t values[N_STATS];
1291 struct netdev_stats stats;
1293 if (iface_is_synthetic(iface)) {
1297 /* Intentionally ignore return value, since errors will set 'stats' to
1298 * all-1s, and we will deal with that correctly below. */
1299 netdev_get_stats(iface->netdev, &stats);
1302 for (s = iface_stats; s < &iface_stats[N_STATS]; s++) {
1303 uint64_t value = *(uint64_t *) (((char *) &stats) + s->offset);
1304 if (value != UINT64_MAX) {
1311 ovsrec_interface_set_statistics(iface->cfg, keys, values, n);
1315 refresh_system_stats(const struct ovsrec_open_vswitch *cfg)
1317 struct ovsdb_datum datum;
1321 get_system_stats(&stats);
1323 ovsdb_datum_from_shash(&datum, &stats);
1324 ovsdb_idl_txn_write(&cfg->header_, &ovsrec_open_vswitch_col_statistics,
1328 static inline const char *
1329 nx_role_to_str(enum nx_role role)
1334 case NX_ROLE_MASTER:
1339 return "*** INVALID ROLE ***";
1344 bridge_refresh_controller_status(const struct bridge *br)
1347 const struct ovsrec_controller *cfg;
1349 ofproto_get_ofproto_controller_info(br->ofproto, &info);
1351 OVSREC_CONTROLLER_FOR_EACH(cfg, idl) {
1352 struct ofproto_controller_info *cinfo =
1353 shash_find_data(&info, cfg->target);
1356 ovsrec_controller_set_is_connected(cfg, cinfo->is_connected);
1357 ovsrec_controller_set_role(cfg, nx_role_to_str(cinfo->role));
1358 ovsrec_controller_set_status(cfg, (char **) cinfo->pairs.keys,
1359 (char **) cinfo->pairs.values,
1362 ovsrec_controller_set_is_connected(cfg, false);
1363 ovsrec_controller_set_role(cfg, NULL);
1364 ovsrec_controller_set_status(cfg, NULL, NULL, 0);
1368 ofproto_free_ofproto_controller_info(&info);
1374 const struct ovsrec_open_vswitch *cfg;
1376 bool datapath_destroyed;
1377 bool database_changed;
1380 /* Let each bridge do the work that it needs to do. */
1381 datapath_destroyed = false;
1382 HMAP_FOR_EACH (br, node, &all_bridges) {
1383 int error = ofproto_run(br->ofproto);
1385 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1386 VLOG_ERR_RL(&rl, "bridge %s: datapath was destroyed externally, "
1387 "forcing reconfiguration", br->name);
1388 datapath_destroyed = true;
1392 /* (Re)configure if necessary. */
1393 database_changed = ovsdb_idl_run(idl);
1394 cfg = ovsrec_open_vswitch_first(idl);
1396 /* Re-configure SSL. We do this on every trip through the main loop,
1397 * instead of just when the database changes, because the contents of the
1398 * key and certificate files can change without the database changing.
1400 * We do this before bridge_reconfigure() because that function might
1401 * initiate SSL connections and thus requires SSL to be configured. */
1402 if (cfg && cfg->ssl) {
1403 const struct ovsrec_ssl *ssl = cfg->ssl;
1405 stream_ssl_set_key_and_cert(ssl->private_key, ssl->certificate);
1406 stream_ssl_set_ca_cert_file(ssl->ca_cert, ssl->bootstrap_ca_cert);
1409 if (database_changed || datapath_destroyed) {
1411 struct ovsdb_idl_txn *txn = ovsdb_idl_txn_create(idl);
1413 bridge_reconfigure(cfg);
1415 ovsrec_open_vswitch_set_cur_cfg(cfg, cfg->next_cfg);
1416 ovsdb_idl_txn_commit(txn);
1417 ovsdb_idl_txn_destroy(txn); /* XXX */
1419 /* We still need to reconfigure to avoid dangling pointers to
1420 * now-destroyed ovsrec structures inside bridge data. */
1421 static const struct ovsrec_open_vswitch null_cfg;
1423 bridge_reconfigure(&null_cfg);
1427 /* Refresh system and interface stats if necessary. */
1428 if (time_msec() >= stats_timer) {
1430 struct ovsdb_idl_txn *txn;
1432 txn = ovsdb_idl_txn_create(idl);
1433 HMAP_FOR_EACH (br, node, &all_bridges) {
1436 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1437 struct iface *iface;
1439 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1440 iface_refresh_stats(iface);
1441 iface_refresh_status(iface);
1444 bridge_refresh_controller_status(br);
1446 refresh_system_stats(cfg);
1447 ovsdb_idl_txn_commit(txn);
1448 ovsdb_idl_txn_destroy(txn); /* XXX */
1451 stats_timer = time_msec() + STATS_INTERVAL;
1454 if (time_msec() >= db_limiter) {
1455 struct ovsdb_idl_txn *txn;
1456 bool changed = false;
1458 txn = ovsdb_idl_txn_create(idl);
1459 HMAP_FOR_EACH (br, node, &all_bridges) {
1462 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1463 struct iface *iface;
1465 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1466 changed = iface_refresh_cfm_stats(iface) || changed;
1467 changed = iface_refresh_lacp_stats(iface) || changed;
1473 db_limiter = time_msec() + DB_LIMIT_INTERVAL;
1476 ovsdb_idl_txn_commit(txn);
1477 ovsdb_idl_txn_destroy(txn);
1486 HMAP_FOR_EACH (br, node, &all_bridges) {
1487 ofproto_wait(br->ofproto);
1489 ovsdb_idl_wait(idl);
1490 poll_timer_wait_until(stats_timer);
1492 if (db_limiter > time_msec()) {
1493 poll_timer_wait_until(db_limiter);
1497 /* CFM unixctl user interface functions. */
1499 cfm_unixctl_show(struct unixctl_conn *conn,
1500 const char *args, void *aux OVS_UNUSED)
1502 struct ds ds = DS_EMPTY_INITIALIZER;
1503 struct iface *iface;
1504 const struct cfm *cfm;
1506 iface = iface_find(args);
1508 unixctl_command_reply(conn, 501, "no such interface");
1512 cfm = ofproto_port_get_cfm(iface->port->bridge->ofproto, iface->ofp_port);
1515 unixctl_command_reply(conn, 501, "CFM not enabled");
1519 cfm_dump_ds(cfm, &ds);
1520 unixctl_command_reply(conn, 200, ds_cstr(&ds));
1524 /* QoS unixctl user interface functions. */
1526 struct qos_unixctl_show_cbdata {
1528 struct iface *iface;
1532 qos_unixctl_show_cb(unsigned int queue_id,
1533 const struct shash *details,
1536 struct qos_unixctl_show_cbdata *data = aux;
1537 struct ds *ds = data->ds;
1538 struct iface *iface = data->iface;
1539 struct netdev_queue_stats stats;
1540 struct shash_node *node;
1543 ds_put_cstr(ds, "\n");
1545 ds_put_format(ds, "Queue %u:\n", queue_id);
1547 ds_put_cstr(ds, "Default:\n");
1550 SHASH_FOR_EACH (node, details) {
1551 ds_put_format(ds, "\t%s: %s\n", node->name, (char *)node->data);
1554 error = netdev_get_queue_stats(iface->netdev, queue_id, &stats);
1556 if (stats.tx_packets != UINT64_MAX) {
1557 ds_put_format(ds, "\ttx_packets: %"PRIu64"\n", stats.tx_packets);
1560 if (stats.tx_bytes != UINT64_MAX) {
1561 ds_put_format(ds, "\ttx_bytes: %"PRIu64"\n", stats.tx_bytes);
1564 if (stats.tx_errors != UINT64_MAX) {
1565 ds_put_format(ds, "\ttx_errors: %"PRIu64"\n", stats.tx_errors);
1568 ds_put_format(ds, "\tFailed to get statistics for queue %u: %s",
1569 queue_id, strerror(error));
1574 qos_unixctl_show(struct unixctl_conn *conn,
1575 const char *args, void *aux OVS_UNUSED)
1577 struct ds ds = DS_EMPTY_INITIALIZER;
1578 struct shash sh = SHASH_INITIALIZER(&sh);
1579 struct iface *iface;
1581 struct shash_node *node;
1582 struct qos_unixctl_show_cbdata data;
1585 iface = iface_find(args);
1587 unixctl_command_reply(conn, 501, "no such interface");
1591 netdev_get_qos(iface->netdev, &type, &sh);
1593 if (*type != '\0') {
1594 ds_put_format(&ds, "QoS: %s %s\n", iface->name, type);
1596 SHASH_FOR_EACH (node, &sh) {
1597 ds_put_format(&ds, "%s: %s\n", node->name, (char *)node->data);
1602 error = netdev_dump_queues(iface->netdev, qos_unixctl_show_cb, &data);
1605 ds_put_format(&ds, "failed to dump queues: %s", strerror(error));
1607 unixctl_command_reply(conn, 200, ds_cstr(&ds));
1609 ds_put_format(&ds, "QoS not configured on %s\n", iface->name);
1610 unixctl_command_reply(conn, 501, ds_cstr(&ds));
1613 shash_destroy_free_data(&sh);
1617 /* Bridge reconfiguration functions. */
1619 bridge_create(const struct ovsrec_bridge *br_cfg)
1623 assert(!bridge_lookup(br_cfg->name));
1624 br = xzalloc(sizeof *br);
1626 br->name = xstrdup(br_cfg->name);
1627 br->type = xstrdup(ofproto_normalize_type(br_cfg->datapath_type));
1629 eth_addr_nicira_random(br->default_ea);
1631 hmap_init(&br->ports);
1632 hmap_init(&br->ifaces);
1633 hmap_init(&br->iface_by_name);
1634 hmap_init(&br->mirrors);
1636 hmap_insert(&all_bridges, &br->node, hash_string(br->name, 0));
1640 bridge_destroy(struct bridge *br)
1643 struct mirror *mirror, *next_mirror;
1644 struct port *port, *next_port;
1646 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
1649 HMAP_FOR_EACH_SAFE (mirror, next_mirror, hmap_node, &br->mirrors) {
1650 mirror_destroy(mirror);
1652 hmap_remove(&all_bridges, &br->node);
1653 ofproto_destroy(br->ofproto);
1654 hmap_destroy(&br->ifaces);
1655 hmap_destroy(&br->ports);
1656 hmap_destroy(&br->iface_by_name);
1657 hmap_destroy(&br->mirrors);
1664 static struct bridge *
1665 bridge_lookup(const char *name)
1669 HMAP_FOR_EACH_WITH_HASH (br, node, hash_string(name, 0), &all_bridges) {
1670 if (!strcmp(br->name, name)) {
1677 /* Handle requests for a listing of all flows known by the OpenFlow
1678 * stack, including those normally hidden. */
1680 bridge_unixctl_dump_flows(struct unixctl_conn *conn,
1681 const char *args, void *aux OVS_UNUSED)
1686 br = bridge_lookup(args);
1688 unixctl_command_reply(conn, 501, "Unknown bridge");
1693 ofproto_get_all_flows(br->ofproto, &results);
1695 unixctl_command_reply(conn, 200, ds_cstr(&results));
1696 ds_destroy(&results);
1699 /* "bridge/reconnect [BRIDGE]": makes BRIDGE drop all of its controller
1700 * connections and reconnect. If BRIDGE is not specified, then all bridges
1701 * drop their controller connections and reconnect. */
1703 bridge_unixctl_reconnect(struct unixctl_conn *conn,
1704 const char *args, void *aux OVS_UNUSED)
1707 if (args[0] != '\0') {
1708 br = bridge_lookup(args);
1710 unixctl_command_reply(conn, 501, "Unknown bridge");
1713 ofproto_reconnect_controllers(br->ofproto);
1715 HMAP_FOR_EACH (br, node, &all_bridges) {
1716 ofproto_reconnect_controllers(br->ofproto);
1719 unixctl_command_reply(conn, 200, NULL);
1723 bridge_get_controllers(const struct bridge *br,
1724 struct ovsrec_controller ***controllersp)
1726 struct ovsrec_controller **controllers;
1727 size_t n_controllers;
1729 controllers = br->cfg->controller;
1730 n_controllers = br->cfg->n_controller;
1732 if (n_controllers == 1 && !strcmp(controllers[0]->target, "none")) {
1738 *controllersp = controllers;
1740 return n_controllers;
1743 /* Adds and deletes "struct port"s and "struct iface"s under 'br' to match
1744 * those configured in 'br->cfg'. */
1746 bridge_add_del_ports(struct bridge *br)
1748 struct port *port, *next;
1749 struct shash_node *node;
1750 struct shash new_ports;
1753 /* Collect new ports. */
1754 shash_init(&new_ports);
1755 for (i = 0; i < br->cfg->n_ports; i++) {
1756 const char *name = br->cfg->ports[i]->name;
1757 if (!shash_add_once(&new_ports, name, br->cfg->ports[i])) {
1758 VLOG_WARN("bridge %s: %s specified twice as bridge port",
1762 if (bridge_get_controllers(br, NULL)
1763 && !shash_find(&new_ports, br->name)) {
1764 VLOG_WARN("bridge %s: no port named %s, synthesizing one",
1765 br->name, br->name);
1767 br->synth_local_port.interfaces = &br->synth_local_ifacep;
1768 br->synth_local_port.n_interfaces = 1;
1769 br->synth_local_port.name = br->name;
1771 br->synth_local_iface.name = br->name;
1772 br->synth_local_iface.type = "internal";
1774 br->synth_local_ifacep = &br->synth_local_iface;
1776 shash_add(&new_ports, br->name, &br->synth_local_port);
1779 /* Get rid of deleted ports.
1780 * Get rid of deleted interfaces on ports that still exist.
1781 * Update 'cfg' of ports that still exist. */
1782 HMAP_FOR_EACH_SAFE (port, next, hmap_node, &br->ports) {
1783 port->cfg = shash_find_data(&new_ports, port->name);
1787 port_del_ifaces(port);
1791 /* Create new ports.
1792 * Add new interfaces to existing ports. */
1793 SHASH_FOR_EACH (node, &new_ports) {
1794 struct port *port = port_lookup(br, node->name);
1796 struct ovsrec_port *cfg = node->data;
1797 port = port_create(br, cfg);
1799 port_add_ifaces(port);
1800 if (list_is_empty(&port->ifaces)) {
1801 VLOG_WARN("bridge %s: port %s has no interfaces, dropping",
1802 br->name, port->name);
1806 shash_destroy(&new_ports);
1809 /* Initializes 'oc' appropriately as a management service controller for
1812 * The caller must free oc->target when it is no longer needed. */
1814 bridge_ofproto_controller_for_mgmt(const struct bridge *br,
1815 struct ofproto_controller *oc)
1817 oc->target = xasprintf("punix:%s/%s.mgmt", ovs_rundir(), br->name);
1818 oc->max_backoff = 0;
1819 oc->probe_interval = 60;
1820 oc->band = OFPROTO_OUT_OF_BAND;
1822 oc->burst_limit = 0;
1825 /* Converts ovsrec_controller 'c' into an ofproto_controller in 'oc'. */
1827 bridge_ofproto_controller_from_ovsrec(const struct ovsrec_controller *c,
1828 struct ofproto_controller *oc)
1830 oc->target = c->target;
1831 oc->max_backoff = c->max_backoff ? *c->max_backoff / 1000 : 8;
1832 oc->probe_interval = c->inactivity_probe ? *c->inactivity_probe / 1000 : 5;
1833 oc->band = (!c->connection_mode || !strcmp(c->connection_mode, "in-band")
1834 ? OFPROTO_IN_BAND : OFPROTO_OUT_OF_BAND);
1835 oc->rate_limit = c->controller_rate_limit ? *c->controller_rate_limit : 0;
1836 oc->burst_limit = (c->controller_burst_limit
1837 ? *c->controller_burst_limit : 0);
1840 /* Configures the IP stack for 'br''s local interface properly according to the
1841 * configuration in 'c'. */
1843 bridge_configure_local_iface_netdev(struct bridge *br,
1844 struct ovsrec_controller *c)
1846 struct netdev *netdev;
1847 struct in_addr mask, gateway;
1849 struct iface *local_iface;
1852 /* If there's no local interface or no IP address, give up. */
1853 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
1854 if (!local_iface || !c->local_ip || !inet_aton(c->local_ip, &ip)) {
1858 /* Bring up the local interface. */
1859 netdev = local_iface->netdev;
1860 netdev_turn_flags_on(netdev, NETDEV_UP, true);
1862 /* Configure the IP address and netmask. */
1863 if (!c->local_netmask
1864 || !inet_aton(c->local_netmask, &mask)
1866 mask.s_addr = guess_netmask(ip.s_addr);
1868 if (!netdev_set_in4(netdev, ip, mask)) {
1869 VLOG_INFO("bridge %s: configured IP address "IP_FMT", netmask "IP_FMT,
1870 br->name, IP_ARGS(&ip.s_addr), IP_ARGS(&mask.s_addr));
1873 /* Configure the default gateway. */
1874 if (c->local_gateway
1875 && inet_aton(c->local_gateway, &gateway)
1876 && gateway.s_addr) {
1877 if (!netdev_add_router(netdev, gateway)) {
1878 VLOG_INFO("bridge %s: configured gateway "IP_FMT,
1879 br->name, IP_ARGS(&gateway.s_addr));
1885 bridge_configure_remotes(struct bridge *br,
1886 const struct sockaddr_in *managers, size_t n_managers)
1888 const char *disable_ib_str, *queue_id_str;
1889 bool disable_in_band = false;
1892 struct ovsrec_controller **controllers;
1893 size_t n_controllers;
1895 enum ofproto_fail_mode fail_mode;
1897 struct ofproto_controller *ocs;
1901 /* Check if we should disable in-band control on this bridge. */
1902 disable_ib_str = bridge_get_other_config(br->cfg, "disable-in-band");
1903 if (disable_ib_str && !strcmp(disable_ib_str, "true")) {
1904 disable_in_band = true;
1907 /* Set OpenFlow queue ID for in-band control. */
1908 queue_id_str = bridge_get_other_config(br->cfg, "in-band-queue");
1909 queue_id = queue_id_str ? strtol(queue_id_str, NULL, 10) : -1;
1910 ofproto_set_in_band_queue(br->ofproto, queue_id);
1912 if (disable_in_band) {
1913 ofproto_set_extra_in_band_remotes(br->ofproto, NULL, 0);
1915 ofproto_set_extra_in_band_remotes(br->ofproto, managers, n_managers);
1918 n_controllers = bridge_get_controllers(br, &controllers);
1920 ocs = xmalloc((n_controllers + 1) * sizeof *ocs);
1923 bridge_ofproto_controller_for_mgmt(br, &ocs[n_ocs++]);
1924 for (i = 0; i < n_controllers; i++) {
1925 struct ovsrec_controller *c = controllers[i];
1927 if (!strncmp(c->target, "punix:", 6)
1928 || !strncmp(c->target, "unix:", 5)) {
1929 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1931 /* Prevent remote ovsdb-server users from accessing arbitrary Unix
1932 * domain sockets and overwriting arbitrary local files. */
1933 VLOG_ERR_RL(&rl, "bridge %s: not adding Unix domain socket "
1934 "controller \"%s\" due to possibility for remote "
1935 "exploit", br->name, c->target);
1939 bridge_configure_local_iface_netdev(br, c);
1940 bridge_ofproto_controller_from_ovsrec(c, &ocs[n_ocs]);
1941 if (disable_in_band) {
1942 ocs[n_ocs].band = OFPROTO_OUT_OF_BAND;
1947 ofproto_set_controllers(br->ofproto, ocs, n_ocs);
1948 free(ocs[0].target); /* From bridge_ofproto_controller_for_mgmt(). */
1951 /* Set the fail-mode. */
1952 fail_mode = !br->cfg->fail_mode
1953 || !strcmp(br->cfg->fail_mode, "standalone")
1954 ? OFPROTO_FAIL_STANDALONE
1955 : OFPROTO_FAIL_SECURE;
1956 ofproto_set_fail_mode(br->ofproto, fail_mode);
1958 /* Configure OpenFlow controller connection snooping. */
1959 if (!ofproto_has_snoops(br->ofproto)) {
1963 sset_add_and_free(&snoops, xasprintf("punix:%s/%s.snoop",
1964 ovs_rundir(), br->name));
1965 ofproto_set_snoops(br->ofproto, &snoops);
1966 sset_destroy(&snoops);
1970 /* Port functions. */
1972 static struct port *
1973 port_create(struct bridge *br, const struct ovsrec_port *cfg)
1977 port = xzalloc(sizeof *port);
1979 port->name = xstrdup(cfg->name);
1981 list_init(&port->ifaces);
1983 hmap_insert(&br->ports, &port->hmap_node, hash_string(port->name, 0));
1985 VLOG_INFO("created port %s on bridge %s", port->name, br->name);
1991 get_port_other_config(const struct ovsrec_port *port, const char *key,
1992 const char *default_value)
1996 value = get_ovsrec_key_value(&port->header_, &ovsrec_port_col_other_config,
1998 return value ? value : default_value;
2002 get_interface_other_config(const struct ovsrec_interface *iface,
2003 const char *key, const char *default_value)
2007 value = get_ovsrec_key_value(&iface->header_,
2008 &ovsrec_interface_col_other_config, key);
2009 return value ? value : default_value;
2012 /* Deletes interfaces from 'port' that are no longer configured for it. */
2014 port_del_ifaces(struct port *port)
2016 struct iface *iface, *next;
2017 struct sset new_ifaces;
2020 /* Collect list of new interfaces. */
2021 sset_init(&new_ifaces);
2022 for (i = 0; i < port->cfg->n_interfaces; i++) {
2023 const char *name = port->cfg->interfaces[i]->name;
2024 sset_add(&new_ifaces, name);
2027 /* Get rid of deleted interfaces. */
2028 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2029 if (!sset_contains(&new_ifaces, iface->name)) {
2030 iface_destroy(iface);
2034 sset_destroy(&new_ifaces);
2037 /* Adds new interfaces to 'port' and updates 'type' and 'cfg' members of
2040 port_add_ifaces(struct port *port)
2042 struct shash new_ifaces;
2043 struct shash_node *node;
2046 /* Collect new ifaces. */
2047 shash_init(&new_ifaces);
2048 for (i = 0; i < port->cfg->n_interfaces; i++) {
2049 const struct ovsrec_interface *cfg = port->cfg->interfaces[i];
2050 if (!shash_add_once(&new_ifaces, cfg->name, cfg)) {
2051 VLOG_WARN("port %s: %s specified twice as port interface",
2052 port->name, cfg->name);
2053 iface_set_ofport(cfg, -1);
2057 /* Create new interfaces.
2058 * Update interface types and 'cfg' members. */
2059 SHASH_FOR_EACH (node, &new_ifaces) {
2060 const struct ovsrec_interface *cfg = node->data;
2061 const char *iface_name = node->name;
2062 struct iface *iface;
2064 iface = iface_lookup(port->bridge, iface_name);
2066 iface = iface_create(port, cfg);
2071 /* Determine interface type. The local port always has type
2072 * "internal". Other ports take their type from the database and
2073 * default to "system" if none is specified. */
2074 iface->type = (!strcmp(iface_name, port->bridge->name) ? "internal"
2075 : cfg->type[0] ? cfg->type
2078 shash_destroy(&new_ifaces);
2082 port_destroy(struct port *port)
2085 struct bridge *br = port->bridge;
2086 struct iface *iface, *next;
2089 ofproto_bundle_unregister(br->ofproto, port);
2092 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2093 iface_destroy(iface);
2096 hmap_remove(&br->ports, &port->hmap_node);
2098 VLOG_INFO("destroyed port %s on bridge %s", port->name, br->name);
2105 static struct port *
2106 port_lookup(const struct bridge *br, const char *name)
2110 HMAP_FOR_EACH_WITH_HASH (port, hmap_node, hash_string(name, 0),
2112 if (!strcmp(port->name, name)) {
2120 enable_lacp(struct port *port, bool *activep)
2122 if (!port->cfg->lacp) {
2123 /* XXX when LACP implementation has been sufficiently tested, enable by
2124 * default and make active on bonded ports. */
2126 } else if (!strcmp(port->cfg->lacp, "off")) {
2128 } else if (!strcmp(port->cfg->lacp, "active")) {
2131 } else if (!strcmp(port->cfg->lacp, "passive")) {
2135 VLOG_WARN("port %s: unknown LACP mode %s",
2136 port->name, port->cfg->lacp);
2141 static struct lacp_settings *
2142 port_configure_lacp(struct port *port, struct lacp_settings *s)
2144 const char *lacp_time;
2145 long long int custom_time;
2148 if (!enable_lacp(port, &s->active)) {
2152 s->name = port->name;
2153 memcpy(s->id, port->bridge->ea, ETH_ADDR_LEN);
2155 /* Prefer bondable links if unspecified. */
2156 priority = atoi(get_port_other_config(port->cfg, "lacp-system-priority",
2158 s->priority = (priority > 0 && priority <= UINT16_MAX
2160 : UINT16_MAX - !list_is_short(&port->ifaces));
2162 s->strict = !strcmp(get_port_other_config(port->cfg, "lacp-strict",
2166 lacp_time = get_port_other_config(port->cfg, "lacp-time", "slow");
2167 custom_time = atoi(lacp_time);
2168 if (!strcmp(lacp_time, "fast")) {
2169 s->lacp_time = LACP_TIME_FAST;
2170 } else if (!strcmp(lacp_time, "slow")) {
2171 s->lacp_time = LACP_TIME_SLOW;
2172 } else if (custom_time > 0) {
2173 s->lacp_time = LACP_TIME_CUSTOM;
2174 s->custom_time = custom_time;
2176 s->lacp_time = LACP_TIME_SLOW;
2183 iface_configure_lacp(struct iface *iface, struct lacp_slave_settings *s)
2185 int priority, portid;
2187 portid = atoi(get_interface_other_config(iface->cfg, "lacp-port-id", "0"));
2188 priority = atoi(get_interface_other_config(iface->cfg,
2189 "lacp-port-priority", "0"));
2191 if (portid <= 0 || portid > UINT16_MAX) {
2192 portid = iface->ofp_port;
2195 if (priority <= 0 || priority > UINT16_MAX) {
2196 priority = UINT16_MAX;
2199 s->name = iface->name;
2201 s->priority = priority;
2205 port_configure_bond(struct port *port, struct bond_settings *s)
2207 const char *detect_s;
2209 s->name = port->name;
2210 s->balance = BM_SLB;
2211 if (port->cfg->bond_mode
2212 && !bond_mode_from_string(&s->balance, port->cfg->bond_mode)) {
2213 VLOG_WARN("port %s: unknown bond_mode %s, defaulting to %s",
2214 port->name, port->cfg->bond_mode,
2215 bond_mode_to_string(s->balance));
2218 s->detect = BLSM_CARRIER;
2219 detect_s = get_port_other_config(port->cfg, "bond-detect-mode", NULL);
2220 if (detect_s && !bond_detect_mode_from_string(&s->detect, detect_s)) {
2221 VLOG_WARN("port %s: unsupported bond-detect-mode %s, "
2223 port->name, detect_s, bond_detect_mode_to_string(s->detect));
2226 s->miimon_interval = atoi(
2227 get_port_other_config(port->cfg, "bond-miimon-interval", "200"));
2228 if (s->miimon_interval < 100) {
2229 s->miimon_interval = 100;
2232 s->up_delay = MAX(0, port->cfg->bond_updelay);
2233 s->down_delay = MAX(0, port->cfg->bond_downdelay);
2234 s->rebalance_interval = atoi(
2235 get_port_other_config(port->cfg, "bond-rebalance-interval", "10000"));
2236 if (s->rebalance_interval < 1000) {
2237 s->rebalance_interval = 1000;
2240 s->fake_iface = port->cfg->bond_fake_iface;
2243 /* Interface functions. */
2245 static struct iface *
2246 iface_create(struct port *port, const struct ovsrec_interface *if_cfg)
2248 struct bridge *br = port->bridge;
2249 struct iface *iface;
2250 char *name = if_cfg->name;
2252 iface = xzalloc(sizeof *iface);
2254 iface->name = xstrdup(name);
2255 iface->ofp_port = -1;
2256 iface->tag = tag_create_random();
2257 iface->netdev = NULL;
2258 iface->cfg = if_cfg;
2260 hmap_insert(&br->iface_by_name, &iface->name_node, hash_string(name, 0));
2262 list_push_back(&port->ifaces, &iface->port_elem);
2264 VLOG_DBG("attached network device %s to port %s", iface->name, port->name);
2270 iface_destroy(struct iface *iface)
2273 struct port *port = iface->port;
2274 struct bridge *br = port->bridge;
2276 if (br->ofproto && iface->ofp_port >= 0) {
2277 ofproto_port_unregister(br->ofproto, iface->ofp_port);
2280 if (iface->ofp_port >= 0) {
2281 hmap_remove(&br->ifaces, &iface->ofp_port_node);
2284 list_remove(&iface->port_elem);
2285 hmap_remove(&br->iface_by_name, &iface->name_node);
2287 netdev_close(iface->netdev);
2294 static struct iface *
2295 iface_lookup(const struct bridge *br, const char *name)
2297 struct iface *iface;
2299 HMAP_FOR_EACH_WITH_HASH (iface, name_node, hash_string(name, 0),
2300 &br->iface_by_name) {
2301 if (!strcmp(iface->name, name)) {
2309 static struct iface *
2310 iface_find(const char *name)
2312 const struct bridge *br;
2314 HMAP_FOR_EACH (br, node, &all_bridges) {
2315 struct iface *iface = iface_lookup(br, name);
2324 static struct iface *
2325 iface_from_ofp_port(const struct bridge *br, uint16_t ofp_port)
2327 struct iface *iface;
2329 HMAP_FOR_EACH_IN_BUCKET (iface, ofp_port_node,
2330 hash_int(ofp_port, 0), &br->ifaces) {
2331 if (iface->ofp_port == ofp_port) {
2338 /* Set Ethernet address of 'iface', if one is specified in the configuration
2341 iface_set_mac(struct iface *iface)
2343 uint8_t ea[ETH_ADDR_LEN];
2345 if (!strcmp(iface->type, "internal")
2346 && iface->cfg->mac && eth_addr_from_string(iface->cfg->mac, ea)) {
2347 if (iface->ofp_port == OFPP_LOCAL) {
2348 VLOG_ERR("interface %s: ignoring mac in Interface record "
2349 "(use Bridge record to set local port's mac)",
2351 } else if (eth_addr_is_multicast(ea)) {
2352 VLOG_ERR("interface %s: cannot set MAC to multicast address",
2355 int error = netdev_set_etheraddr(iface->netdev, ea);
2357 VLOG_ERR("interface %s: setting MAC failed (%s)",
2358 iface->name, strerror(error));
2364 /* Sets the ofport column of 'if_cfg' to 'ofport'. */
2366 iface_set_ofport(const struct ovsrec_interface *if_cfg, int64_t ofport)
2368 if (if_cfg && !ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
2369 ovsrec_interface_set_ofport(if_cfg, &ofport, 1);
2373 /* Adds the 'n' key-value pairs in 'keys' in 'values' to 'shash'.
2375 * The value strings in '*shash' are taken directly from values[], not copied,
2376 * so the caller should not modify or free them. */
2378 shash_from_ovs_idl_map(char **keys, char **values, size_t n,
2379 struct shash *shash)
2384 for (i = 0; i < n; i++) {
2385 shash_add(shash, keys[i], values[i]);
2389 /* Creates 'keys' and 'values' arrays from 'shash'.
2391 * Sets 'keys' and 'values' to heap allocated arrays representing the key-value
2392 * pairs in 'shash'. The caller takes ownership of 'keys' and 'values'. They
2393 * are populated with with strings taken directly from 'shash' and thus have
2394 * the same ownership of the key-value pairs in shash.
2397 shash_to_ovs_idl_map(struct shash *shash,
2398 char ***keys, char ***values, size_t *n)
2402 struct shash_node *sn;
2404 count = shash_count(shash);
2406 k = xmalloc(count * sizeof *k);
2407 v = xmalloc(count * sizeof *v);
2410 SHASH_FOR_EACH(sn, shash) {
2421 struct iface_delete_queues_cbdata {
2422 struct netdev *netdev;
2423 const struct ovsdb_datum *queues;
2427 queue_ids_include(const struct ovsdb_datum *queues, int64_t target)
2429 union ovsdb_atom atom;
2431 atom.integer = target;
2432 return ovsdb_datum_find_key(queues, &atom, OVSDB_TYPE_INTEGER) != UINT_MAX;
2436 iface_delete_queues(unsigned int queue_id,
2437 const struct shash *details OVS_UNUSED, void *cbdata_)
2439 struct iface_delete_queues_cbdata *cbdata = cbdata_;
2441 if (!queue_ids_include(cbdata->queues, queue_id)) {
2442 netdev_delete_queue(cbdata->netdev, queue_id);
2447 iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos)
2449 if (!qos || qos->type[0] == '\0') {
2450 netdev_set_qos(iface->netdev, NULL, NULL);
2452 struct iface_delete_queues_cbdata cbdata;
2453 struct shash details;
2456 /* Configure top-level Qos for 'iface'. */
2457 shash_from_ovs_idl_map(qos->key_other_config, qos->value_other_config,
2458 qos->n_other_config, &details);
2459 netdev_set_qos(iface->netdev, qos->type, &details);
2460 shash_destroy(&details);
2462 /* Deconfigure queues that were deleted. */
2463 cbdata.netdev = iface->netdev;
2464 cbdata.queues = ovsrec_qos_get_queues(qos, OVSDB_TYPE_INTEGER,
2466 netdev_dump_queues(iface->netdev, iface_delete_queues, &cbdata);
2468 /* Configure queues for 'iface'. */
2469 for (i = 0; i < qos->n_queues; i++) {
2470 const struct ovsrec_queue *queue = qos->value_queues[i];
2471 unsigned int queue_id = qos->key_queues[i];
2473 shash_from_ovs_idl_map(queue->key_other_config,
2474 queue->value_other_config,
2475 queue->n_other_config, &details);
2476 netdev_set_queue(iface->netdev, queue_id, &details);
2477 shash_destroy(&details);
2481 netdev_set_policing(iface->netdev,
2482 iface->cfg->ingress_policing_rate,
2483 iface->cfg->ingress_policing_burst);
2487 iface_configure_cfm(struct iface *iface)
2491 uint16_t *remote_mps;
2492 struct ovsrec_monitor *mon;
2493 uint8_t maid[CCM_MAID_LEN];
2495 mon = iface->cfg->monitor;
2498 ofproto_port_clear_cfm(iface->port->bridge->ofproto, iface->ofp_port);
2502 if (!cfm_generate_maid(mon->md_name, mon->ma_name, maid)) {
2503 VLOG_WARN("interface %s: Failed to generate MAID.", iface->name);
2507 cfm.mpid = mon->mpid;
2508 cfm.interval = mon->interval ? *mon->interval : 1000;
2510 memcpy(cfm.maid, maid, sizeof cfm.maid);
2512 remote_mps = xzalloc(mon->n_remote_mps * sizeof *remote_mps);
2513 for(i = 0; i < mon->n_remote_mps; i++) {
2514 remote_mps[i] = mon->remote_mps[i]->mpid;
2517 ofproto_port_set_cfm(iface->port->bridge->ofproto, iface->ofp_port,
2518 &cfm, remote_mps, mon->n_remote_mps);
2522 /* Read carrier or miimon status directly from 'iface''s netdev, according to
2523 * how 'iface''s port is configured.
2525 * Returns true if 'iface' is up, false otherwise. */
2527 iface_get_carrier(const struct iface *iface)
2530 return netdev_get_carrier(iface->netdev);
2533 /* Returns true if 'iface' is synthetic, that is, if we constructed it locally
2534 * instead of obtaining it from the database. */
2536 iface_is_synthetic(const struct iface *iface)
2538 return ovsdb_idl_row_is_synthetic(&iface->cfg->header_);
2541 /* Port mirroring. */
2543 static struct mirror *
2544 mirror_find_by_uuid(struct bridge *br, const struct uuid *uuid)
2548 HMAP_FOR_EACH_IN_BUCKET (m, hmap_node, uuid_hash(uuid), &br->mirrors) {
2549 if (uuid_equals(uuid, &m->uuid)) {
2557 bridge_configure_mirrors(struct bridge *br)
2559 const struct ovsdb_datum *mc;
2560 unsigned long *flood_vlans;
2561 struct mirror *m, *next;
2564 /* Get rid of deleted mirrors. */
2565 mc = ovsrec_bridge_get_mirrors(br->cfg, OVSDB_TYPE_UUID);
2566 HMAP_FOR_EACH_SAFE (m, next, hmap_node, &br->mirrors) {
2567 union ovsdb_atom atom;
2569 atom.uuid = m->uuid;
2570 if (ovsdb_datum_find_key(mc, &atom, OVSDB_TYPE_UUID) == UINT_MAX) {
2575 /* Add new mirrors and reconfigure existing ones. */
2576 for (i = 0; i < br->cfg->n_mirrors; i++) {
2577 const struct ovsrec_mirror *cfg = br->cfg->mirrors[i];
2578 struct mirror *m = mirror_find_by_uuid(br, &cfg->header_.uuid);
2580 m = mirror_create(br, cfg);
2582 if (!mirror_configure(m, cfg)) {
2587 /* Update flooded vlans (for RSPAN). */
2588 flood_vlans = vlan_bitmap_from_array(br->cfg->flood_vlans,
2589 br->cfg->n_flood_vlans);
2590 ofproto_set_flood_vlans(br->ofproto, flood_vlans);
2591 bitmap_free(flood_vlans);
2594 static struct mirror *
2595 mirror_create(struct bridge *br, const struct ovsrec_mirror *cfg)
2599 m = xzalloc(sizeof *m);
2600 m->uuid = cfg->header_.uuid;
2601 hmap_insert(&br->mirrors, &m->hmap_node, uuid_hash(&m->uuid));
2603 m->name = xstrdup(cfg->name);
2609 mirror_destroy(struct mirror *m)
2612 struct bridge *br = m->bridge;
2615 ofproto_mirror_unregister(br->ofproto, m);
2618 hmap_remove(&br->mirrors, &m->hmap_node);
2625 mirror_collect_ports(struct mirror *m,
2626 struct ovsrec_port **in_ports, int n_in_ports,
2627 void ***out_portsp, size_t *n_out_portsp)
2629 void **out_ports = xmalloc(n_in_ports * sizeof *out_ports);
2630 size_t n_out_ports = 0;
2633 for (i = 0; i < n_in_ports; i++) {
2634 const char *name = in_ports[i]->name;
2635 struct port *port = port_lookup(m->bridge, name);
2637 out_ports[n_out_ports++] = port;
2639 VLOG_WARN("bridge %s: mirror %s cannot match on nonexistent "
2640 "port %s", m->bridge->name, m->name, name);
2643 *out_portsp = out_ports;
2644 *n_out_portsp = n_out_ports;
2648 mirror_configure(struct mirror *m, const struct ovsrec_mirror *cfg)
2650 struct ofproto_mirror_settings s;
2653 if (strcmp(cfg->name, m->name)) {
2655 m->name = xstrdup(cfg->name);
2659 /* Get output port or VLAN. */
2660 if (cfg->output_port) {
2661 s.out_bundle = port_lookup(m->bridge, cfg->output_port->name);
2662 if (!s.out_bundle) {
2663 VLOG_ERR("bridge %s: mirror %s outputs to port not on bridge",
2664 m->bridge->name, m->name);
2667 s.out_vlan = UINT16_MAX;
2669 if (cfg->output_vlan) {
2670 VLOG_ERR("bridge %s: mirror %s specifies both output port and "
2671 "output vlan; ignoring output vlan",
2672 m->bridge->name, m->name);
2674 } else if (cfg->output_vlan) {
2675 /* The database should prevent invalid VLAN values. */
2676 s.out_bundle = NULL;
2677 s.out_vlan = *cfg->output_vlan;
2679 VLOG_ERR("bridge %s: mirror %s does not specify output; ignoring",
2680 m->bridge->name, m->name);
2684 /* Get port selection. */
2685 if (cfg->select_all) {
2686 size_t n_ports = hmap_count(&m->bridge->ports);
2687 void **ports = xmalloc(n_ports * sizeof *ports);
2692 HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) {
2702 /* Get ports, dropping ports that don't exist.
2703 * The IDL ensures that there are no duplicates. */
2704 mirror_collect_ports(m, cfg->select_src_port, cfg->n_select_src_port,
2705 &s.srcs, &s.n_srcs);
2706 mirror_collect_ports(m, cfg->select_dst_port, cfg->n_select_dst_port,
2707 &s.dsts, &s.n_dsts);
2711 /* Get VLAN selection. */
2712 s.src_vlans = vlan_bitmap_from_array(cfg->select_vlan, cfg->n_select_vlan);
2715 ofproto_mirror_register(m->bridge->ofproto, m, &s);
2718 if (s.srcs != s.dsts) {