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.
18 #include "byte-order.h"
21 #include <arpa/inet.h>
24 #include <sys/socket.h>
26 #include <openflow/openflow.h>
31 #include <sys/socket.h>
32 #include <sys/types.h>
37 #include "classifier.h"
41 #include "dynamic-string.h"
48 #include "mac-learning.h"
52 #include "ofp-print.h"
54 #include "ofproto/netflow.h"
55 #include "ofproto/ofproto.h"
56 #include "ovsdb-data.h"
58 #include "poll-loop.h"
62 #include "socket-util.h"
63 #include "stream-ssl.h"
66 #include "system-stats.h"
71 #include "vswitchd/vswitch-idl.h"
72 #include "xenserver.h"
74 #include "sflow_api.h"
75 #include "vlan-bitmap.h"
77 VLOG_DEFINE_THIS_MODULE(bridge);
79 COVERAGE_DEFINE(bridge_reconfigure);
82 /* These members are always valid. */
83 struct list port_elem; /* Element in struct port's "ifaces" list. */
84 struct hmap_node name_node; /* In struct bridge's "iface_by_name" hmap. */
85 struct port *port; /* Containing port. */
86 char *name; /* Host network device name. */
87 tag_type tag; /* Tag associated with this interface. */
89 /* These members are valid only after bridge_reconfigure() causes them to
91 struct hmap_node ofp_port_node; /* In struct bridge's "ifaces" hmap. */
92 int ofp_port; /* OpenFlow port number, -1 if unknown. */
93 struct netdev *netdev; /* Network device. */
94 const char *type; /* Usually same as cfg->type. */
95 const struct ovsrec_interface *cfg;
99 struct uuid uuid; /* UUID of this "mirror" record in database. */
100 struct hmap_node hmap_node; /* In struct bridge's "mirrors" hmap. */
101 struct bridge *bridge;
106 struct bridge *bridge;
107 struct hmap_node hmap_node; /* Element in struct bridge's "ports" hmap. */
110 const struct ovsrec_port *cfg;
112 /* An ordinary bridge port has 1 interface.
113 * A bridge port for bonding has at least 2 interfaces. */
114 struct list ifaces; /* List of "struct iface"s. */
118 struct hmap_node node; /* In 'all_bridges'. */
119 char *name; /* User-specified arbitrary name. */
120 char *type; /* Datapath type. */
121 uint8_t ea[ETH_ADDR_LEN]; /* Bridge Ethernet Address. */
122 uint8_t default_ea[ETH_ADDR_LEN]; /* Default MAC. */
123 const struct ovsrec_bridge *cfg;
125 /* OpenFlow switch processing. */
126 struct ofproto *ofproto; /* OpenFlow switch. */
129 struct hmap ports; /* "struct port"s indexed by name. */
130 struct hmap ifaces; /* "struct iface"s indexed by ofp_port. */
131 struct hmap iface_by_name; /* "struct iface"s indexed by name. */
133 /* Port mirroring. */
134 struct hmap mirrors; /* "struct mirror" indexed by UUID. */
136 /* Synthetic local port if necessary. */
137 struct ovsrec_port synth_local_port;
138 struct ovsrec_interface synth_local_iface;
139 struct ovsrec_interface *synth_local_ifacep;
142 /* All bridges, indexed by name. */
143 static struct hmap all_bridges = HMAP_INITIALIZER(&all_bridges);
145 /* OVSDB IDL used to obtain configuration. */
146 static struct ovsdb_idl *idl;
148 /* Each time this timer expires, the bridge fetches systems and interface
149 * statistics and pushes them into the database. */
150 #define STATS_INTERVAL (5 * 1000) /* In milliseconds. */
151 static long long int stats_timer = LLONG_MIN;
153 /* Stores the time after which rate limited statistics may be written to the
154 * database. Only updated when changes to the database require rate limiting.
156 #define DB_LIMIT_INTERVAL (1 * 1000) /* In milliseconds. */
157 static long long int db_limiter = LLONG_MIN;
159 static void add_del_bridges(const struct ovsrec_open_vswitch *);
160 static void bridge_del_ofprotos(void);
161 static bool bridge_add_ofprotos(struct bridge *);
162 static void bridge_create(const struct ovsrec_bridge *);
163 static void bridge_destroy(struct bridge *);
164 static struct bridge *bridge_lookup(const char *name);
165 static unixctl_cb_func bridge_unixctl_dump_flows;
166 static unixctl_cb_func bridge_unixctl_reconnect;
167 static size_t bridge_get_controllers(const struct bridge *br,
168 struct ovsrec_controller ***controllersp);
169 static void bridge_add_del_ports(struct bridge *);
170 static void bridge_add_ofproto_ports(struct bridge *);
171 static void bridge_del_ofproto_ports(struct bridge *);
172 static void bridge_refresh_ofp_port(struct bridge *);
173 static void bridge_configure_datapath_id(struct bridge *);
174 static void bridge_configure_netflow(struct bridge *);
175 static void bridge_configure_sflow(struct bridge *, int *sflow_bridge_number);
176 static void bridge_configure_remotes(struct bridge *,
177 const struct sockaddr_in *managers,
179 static void bridge_pick_local_hw_addr(struct bridge *,
180 uint8_t ea[ETH_ADDR_LEN],
181 struct iface **hw_addr_iface);
182 static uint64_t bridge_pick_datapath_id(struct bridge *,
183 const uint8_t bridge_ea[ETH_ADDR_LEN],
184 struct iface *hw_addr_iface);
185 static uint64_t dpid_from_hash(const void *, size_t nbytes);
186 static bool bridge_has_bond_fake_iface(const struct bridge *,
188 static bool port_is_bond_fake_iface(const struct port *);
190 static unixctl_cb_func cfm_unixctl_show;
191 static unixctl_cb_func qos_unixctl_show;
193 static struct port *port_create(struct bridge *, const struct ovsrec_port *);
194 static void port_add_ifaces(struct port *);
195 static void port_del_ifaces(struct port *);
196 static void port_destroy(struct port *);
197 static struct port *port_lookup(const struct bridge *, const char *name);
198 static void port_configure(struct port *);
199 static struct lacp_settings *port_configure_lacp(struct port *,
200 struct lacp_settings *);
201 static void port_configure_bond(struct port *, struct bond_settings *);
203 static void bridge_configure_mirrors(struct bridge *);
204 static struct mirror *mirror_create(struct bridge *,
205 const struct ovsrec_mirror *);
206 static void mirror_destroy(struct mirror *);
207 static bool mirror_configure(struct mirror *, const struct ovsrec_mirror *);
209 static void iface_configure_lacp(struct iface *, struct lacp_slave_settings *);
210 static struct iface *iface_create(struct port *port,
211 const struct ovsrec_interface *if_cfg);
212 static void iface_destroy(struct iface *);
213 static struct iface *iface_lookup(const struct bridge *, const char *name);
214 static struct iface *iface_find(const char *name);
215 static struct iface *iface_from_ofp_port(const struct bridge *,
217 static void iface_set_mac(struct iface *);
218 static void iface_set_ofport(const struct ovsrec_interface *, int64_t ofport);
219 static void iface_configure_qos(struct iface *, const struct ovsrec_qos *);
220 static void iface_configure_cfm(struct iface *);
221 static bool iface_refresh_cfm_stats(struct iface *iface);
222 static bool iface_get_carrier(const struct iface *);
223 static bool iface_is_synthetic(const struct iface *);
225 static void shash_from_ovs_idl_map(char **keys, char **values, size_t n,
227 static void shash_to_ovs_idl_map(struct shash *,
228 char ***keys, char ***values, size_t *n);
230 /* Public functions. */
232 /* Initializes the bridge module, configuring it to obtain its configuration
233 * from an OVSDB server accessed over 'remote', which should be a string in a
234 * form acceptable to ovsdb_idl_create(). */
236 bridge_init(const char *remote)
238 /* Create connection to database. */
239 idl = ovsdb_idl_create(remote, &ovsrec_idl_class, true);
241 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_cur_cfg);
242 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_statistics);
243 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_external_ids);
244 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_ovs_version);
245 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_db_version);
246 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_type);
247 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_version);
249 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_datapath_id);
250 ovsdb_idl_omit(idl, &ovsrec_bridge_col_external_ids);
252 ovsdb_idl_omit(idl, &ovsrec_port_col_external_ids);
253 ovsdb_idl_omit(idl, &ovsrec_port_col_fake_bridge);
255 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_admin_state);
256 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_duplex);
257 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_speed);
258 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_state);
259 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mtu);
260 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ofport);
261 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_statistics);
262 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_status);
263 ovsdb_idl_omit(idl, &ovsrec_interface_col_external_ids);
265 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_is_connected);
266 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_role);
267 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_status);
268 ovsdb_idl_omit(idl, &ovsrec_controller_col_external_ids);
270 ovsdb_idl_omit_alert(idl, &ovsrec_maintenance_point_col_fault);
272 ovsdb_idl_omit_alert(idl, &ovsrec_monitor_col_fault);
274 ovsdb_idl_omit(idl, &ovsrec_qos_col_external_ids);
276 ovsdb_idl_omit(idl, &ovsrec_queue_col_external_ids);
278 ovsdb_idl_omit(idl, &ovsrec_mirror_col_external_ids);
280 ovsdb_idl_omit(idl, &ovsrec_netflow_col_external_ids);
282 ovsdb_idl_omit(idl, &ovsrec_sflow_col_external_ids);
284 ovsdb_idl_omit(idl, &ovsrec_manager_col_external_ids);
285 ovsdb_idl_omit(idl, &ovsrec_manager_col_inactivity_probe);
286 ovsdb_idl_omit(idl, &ovsrec_manager_col_is_connected);
287 ovsdb_idl_omit(idl, &ovsrec_manager_col_max_backoff);
288 ovsdb_idl_omit(idl, &ovsrec_manager_col_status);
290 ovsdb_idl_omit(idl, &ovsrec_ssl_col_external_ids);
292 /* Register unixctl commands. */
293 unixctl_command_register("cfm/show", cfm_unixctl_show, NULL);
294 unixctl_command_register("qos/show", qos_unixctl_show, NULL);
295 unixctl_command_register("bridge/dump-flows", bridge_unixctl_dump_flows,
297 unixctl_command_register("bridge/reconnect", bridge_unixctl_reconnect,
306 struct bridge *br, *next_br;
308 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
311 ovsdb_idl_destroy(idl);
314 /* Looks at the list of managers in 'ovs_cfg' and extracts their remote IP
315 * addresses and ports into '*managersp' and '*n_managersp'. The caller is
316 * responsible for freeing '*managersp' (with free()).
318 * You may be asking yourself "why does ovs-vswitchd care?", because
319 * ovsdb-server is responsible for connecting to the managers, and ovs-vswitchd
320 * should not be and in fact is not directly involved in that. But
321 * ovs-vswitchd needs to make sure that ovsdb-server can reach the managers, so
322 * it has to tell in-band control where the managers are to enable that.
323 * (Thus, only managers connected in-band are collected.)
326 collect_in_band_managers(const struct ovsrec_open_vswitch *ovs_cfg,
327 struct sockaddr_in **managersp, size_t *n_managersp)
329 struct sockaddr_in *managers = NULL;
330 size_t n_managers = 0;
334 /* Collect all of the potential targets from the "targets" columns of the
335 * rows pointed to by "manager_options", excluding any that are
338 for (i = 0; i < ovs_cfg->n_manager_options; i++) {
339 struct ovsrec_manager *m = ovs_cfg->manager_options[i];
341 if (m->connection_mode && !strcmp(m->connection_mode, "out-of-band")) {
342 sset_find_and_delete(&targets, m->target);
344 sset_add(&targets, m->target);
348 /* Now extract the targets' IP addresses. */
349 if (!sset_is_empty(&targets)) {
352 managers = xmalloc(sset_count(&targets) * sizeof *managers);
353 SSET_FOR_EACH (target, &targets) {
354 struct sockaddr_in *sin = &managers[n_managers];
356 if ((!strncmp(target, "tcp:", 4)
357 && inet_parse_active(target + 4, JSONRPC_TCP_PORT, sin)) ||
358 (!strncmp(target, "ssl:", 4)
359 && inet_parse_active(target + 4, JSONRPC_SSL_PORT, sin))) {
364 sset_destroy(&targets);
366 *managersp = managers;
367 *n_managersp = n_managers;
371 bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
373 struct sockaddr_in *managers;
374 struct bridge *br, *next;
375 int sflow_bridge_number;
378 COVERAGE_INC(bridge_reconfigure);
380 /* Create and destroy "struct bridge"s, "struct port"s, and "struct
381 * iface"s according to 'ovs_cfg', with only very minimal configuration
384 * This is purely an update to bridge data structures. Nothing is pushed
385 * down to ofproto or lower layers. */
386 add_del_bridges(ovs_cfg);
387 HMAP_FOR_EACH (br, node, &all_bridges) {
388 bridge_add_del_ports(br);
391 /* Delete all datapaths and datapath ports that are no longer configured.
393 * The kernel will reject any attempt to add a given port to a datapath if
394 * that port already belongs to a different datapath, so we must do all
395 * port deletions before any port additions. A datapath always has a
396 * "local port" so we must delete not-configured datapaths too. */
397 bridge_del_ofprotos();
398 HMAP_FOR_EACH (br, node, &all_bridges) {
400 bridge_del_ofproto_ports(br);
404 /* Create datapaths and datapath ports that are missing.
406 * After this is done, we have our final set of bridges, ports, and
407 * interfaces. Every "struct bridge" has an ofproto, every "struct port"
408 * has at least one iface, every "struct iface" has a valid ofp_port and
410 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
411 if (!br->ofproto && !bridge_add_ofprotos(br)) {
415 HMAP_FOR_EACH (br, node, &all_bridges) {
416 bridge_refresh_ofp_port(br);
417 bridge_add_ofproto_ports(br);
420 /* Complete the configuration. */
421 sflow_bridge_number = 0;
422 collect_in_band_managers(ovs_cfg, &managers, &n_managers);
423 HMAP_FOR_EACH (br, node, &all_bridges) {
426 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
429 port_configure(port);
431 HMAP_FOR_EACH (iface, ofp_port_node, &br->ifaces) {
432 iface_configure_cfm(iface);
433 iface_configure_qos(iface, port->cfg->qos);
434 iface_set_mac(iface);
437 bridge_configure_mirrors(br);
438 bridge_configure_datapath_id(br);
439 bridge_configure_remotes(br, managers, n_managers);
440 bridge_configure_netflow(br);
441 bridge_configure_sflow(br, &sflow_bridge_number);
445 /* ovs-vswitchd has completed initialization, so allow the process that
446 * forked us to exit successfully. */
447 daemonize_complete();
450 /* Iterate over all ofprotos and delete any of them that do not have a
451 * configured bridge or that are the wrong type. */
453 bridge_del_ofprotos(void)
461 ofproto_enumerate_types(&types);
462 SSET_FOR_EACH (type, &types) {
465 ofproto_enumerate_names(type, &names);
466 SSET_FOR_EACH (name, &names) {
467 struct bridge *br = bridge_lookup(name);
468 if (!br || strcmp(type, br->type)) {
469 ofproto_delete(name, type);
473 sset_destroy(&names);
474 sset_destroy(&types);
478 bridge_add_ofprotos(struct bridge *br)
480 int error = ofproto_create(br->name, br->type, &br->ofproto);
482 VLOG_ERR("failed to create bridge %s: %s", br->name, strerror(error));
489 port_configure(struct port *port)
491 const struct ovsrec_port *cfg = port->cfg;
492 struct bond_settings bond_settings;
493 struct lacp_settings lacp_settings;
494 struct ofproto_bundle_settings s;
502 s.slaves = xmalloc(list_size(&port->ifaces) * sizeof *s.slaves);
503 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
504 s.slaves[s.n_slaves++] = iface->ofp_port;
510 if (list_is_short(&port->ifaces)) {
511 if (*cfg->tag >= 0 && *cfg->tag <= 4095) {
513 VLOG_DBG("port %s: assigning VLAN tag %d", port->name, s.vlan);
516 /* It's possible that bonded, VLAN-tagged ports make sense. Maybe
517 * they even work as-is. But they have not been tested. */
518 VLOG_WARN("port %s: VLAN tags not supported on bonded ports",
523 /* Get VLAN trunks. */
525 if (s.vlan < 0 && cfg->n_trunks) {
526 s.trunks = vlan_bitmap_from_array(cfg->trunks, cfg->n_trunks);
527 } else if (s.vlan >= 0 && cfg->n_trunks) {
528 VLOG_ERR("port %s: ignoring trunks in favor of implicit vlan",
532 /* Get LACP settings. */
533 s.lacp = port_configure_lacp(port, &lacp_settings);
537 s.lacp_slaves = xmalloc(s.n_slaves * sizeof *s.lacp_slaves);
538 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
539 iface_configure_lacp(iface, &s.lacp_slaves[i++]);
542 s.lacp_slaves = NULL;
545 /* Get bond settings. */
546 if (s.n_slaves > 1) {
547 port_configure_bond(port, &bond_settings);
548 s.bond = &bond_settings;
554 ofproto_bundle_register(port->bridge->ofproto, port, &s);
561 /* Pick local port hardware address and datapath ID for 'br'. */
563 bridge_configure_datapath_id(struct bridge *br)
565 uint8_t ea[ETH_ADDR_LEN];
567 struct iface *local_iface;
568 struct iface *hw_addr_iface;
571 bridge_pick_local_hw_addr(br, ea, &hw_addr_iface);
572 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
574 int error = netdev_set_etheraddr(local_iface->netdev, ea);
576 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
577 VLOG_ERR_RL(&rl, "bridge %s: failed to set bridge "
578 "Ethernet address: %s",
579 br->name, strerror(error));
582 memcpy(br->ea, ea, ETH_ADDR_LEN);
584 dpid = bridge_pick_datapath_id(br, ea, hw_addr_iface);
585 ofproto_set_datapath_id(br->ofproto, dpid);
587 dpid_string = xasprintf("%016"PRIx64, dpid);
588 ovsrec_bridge_set_datapath_id(br->cfg, dpid_string);
592 /* Set NetFlow configuration on 'br'. */
594 bridge_configure_netflow(struct bridge *br)
596 struct ovsrec_netflow *cfg = br->cfg->netflow;
597 struct netflow_options opts;
600 ofproto_set_netflow(br->ofproto, NULL);
604 memset(&opts, 0, sizeof opts);
606 /* Get default NetFlow configuration from datapath.
607 * Apply overrides from 'cfg'. */
608 ofproto_get_netflow_ids(br->ofproto, &opts.engine_type, &opts.engine_id);
609 if (cfg->engine_type) {
610 opts.engine_type = *cfg->engine_type;
612 if (cfg->engine_id) {
613 opts.engine_id = *cfg->engine_id;
616 /* Configure active timeout interval. */
617 opts.active_timeout = cfg->active_timeout;
618 if (!opts.active_timeout) {
619 opts.active_timeout = -1;
620 } else if (opts.active_timeout < 0) {
621 VLOG_WARN("bridge %s: active timeout interval set to negative "
622 "value, using default instead (%d seconds)", br->name,
623 NF_ACTIVE_TIMEOUT_DEFAULT);
624 opts.active_timeout = -1;
627 /* Add engine ID to interface number to disambiguate bridgs? */
628 opts.add_id_to_iface = cfg->add_id_to_interface;
629 if (opts.add_id_to_iface) {
630 if (opts.engine_id > 0x7f) {
631 VLOG_WARN("bridge %s: NetFlow port mangling may conflict with "
632 "another vswitch, choose an engine id less than 128",
635 if (hmap_count(&br->ports) > 508) {
636 VLOG_WARN("bridge %s: NetFlow port mangling will conflict with "
637 "another port when more than 508 ports are used",
643 sset_init(&opts.collectors);
644 sset_add_array(&opts.collectors, cfg->targets, cfg->n_targets);
647 if (ofproto_set_netflow(br->ofproto, &opts)) {
648 VLOG_ERR("bridge %s: problem setting netflow collectors", br->name);
650 sset_destroy(&opts.collectors);
653 /* Set sFlow configuration on 'br'. */
655 bridge_configure_sflow(struct bridge *br, int *sflow_bridge_number)
657 const struct ovsrec_sflow *cfg = br->cfg->sflow;
658 struct ovsrec_controller **controllers;
659 struct ofproto_sflow_options oso;
660 size_t n_controllers;
664 ofproto_set_sflow(br->ofproto, NULL);
668 memset(&oso, 0, sizeof oso);
670 sset_init(&oso.targets);
671 sset_add_array(&oso.targets, cfg->targets, cfg->n_targets);
673 oso.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
675 oso.sampling_rate = *cfg->sampling;
678 oso.polling_interval = SFL_DEFAULT_POLLING_INTERVAL;
680 oso.polling_interval = *cfg->polling;
683 oso.header_len = SFL_DEFAULT_HEADER_SIZE;
685 oso.header_len = *cfg->header;
688 oso.sub_id = (*sflow_bridge_number)++;
689 oso.agent_device = cfg->agent;
691 oso.control_ip = NULL;
692 n_controllers = bridge_get_controllers(br, &controllers);
693 for (i = 0; i < n_controllers; i++) {
694 if (controllers[i]->local_ip) {
695 oso.control_ip = controllers[i]->local_ip;
699 ofproto_set_sflow(br->ofproto, &oso);
701 sset_destroy(&oso.targets);
705 bridge_has_bond_fake_iface(const struct bridge *br, const char *name)
707 const struct port *port = port_lookup(br, name);
708 return port && port_is_bond_fake_iface(port);
712 port_is_bond_fake_iface(const struct port *port)
714 return port->cfg->bond_fake_iface && !list_is_short(&port->ifaces);
718 add_del_bridges(const struct ovsrec_open_vswitch *cfg)
720 struct bridge *br, *next;
724 /* Collect new bridges' names and types. */
726 for (i = 0; i < cfg->n_bridges; i++) {
727 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
728 if (!shash_add_once(&new_br, br_cfg->name, br_cfg)) {
729 VLOG_WARN("bridge %s specified twice", br_cfg->name);
733 /* Get rid of deleted bridges or those whose types have changed.
734 * Update 'cfg' of bridges that still exist. */
735 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
736 br->cfg = shash_find_data(&new_br, br->name);
737 if (!br->cfg || strcmp(br->type, ofproto_normalize_type(
738 br->cfg->datapath_type))) {
743 /* Add new bridges. */
744 for (i = 0; i < cfg->n_bridges; i++) {
745 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
746 struct bridge *br = bridge_lookup(br_cfg->name);
748 bridge_create(br_cfg);
752 shash_destroy(&new_br);
755 /* Delete each ofproto port on 'br' that doesn't have a corresponding "struct
758 * The kernel will reject any attempt to add a given port to a datapath if that
759 * port already belongs to a different datapath, so we must do all port
760 * deletions before any port additions. */
762 bridge_del_ofproto_ports(struct bridge *br)
764 struct ofproto_port_dump dump;
765 struct ofproto_port ofproto_port;
767 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
768 const char *name = ofproto_port.name;
773 /* Ignore the local port. We can't change it anyhow. */
774 if (!strcmp(name, br->name)) {
778 /* Get the type that 'ofproto_port' should have (ordinarily the
779 * type of its corresponding iface) or NULL if it should be
781 iface = iface_lookup(br, name);
782 type = (iface ? iface->type
783 : bridge_has_bond_fake_iface(br, name) ? "internal"
786 /* If it's the wrong type then delete the ofproto port. */
788 && !strcmp(ofproto_port.type, type)
789 && (!iface || !iface->netdev
790 || !strcmp(netdev_get_type(iface->netdev), type))) {
793 error = ofproto_port_del(br->ofproto, ofproto_port.ofp_port);
795 VLOG_WARN("bridge %s: failed to remove %s interface (%s)",
796 br->name, name, strerror(error));
799 ofproto_port_unregister(br->ofproto, ofproto_port.ofp_port);
800 netdev_close(iface->netdev);
801 iface->netdev = NULL;
807 iface_set_ofp_port(struct iface *iface, int ofp_port)
809 struct bridge *br = iface->port->bridge;
811 assert(iface->ofp_port < 0 && ofp_port >= 0);
812 iface->ofp_port = ofp_port;
813 hmap_insert(&br->ifaces, &iface->ofp_port_node, hash_int(ofp_port, 0));
818 bridge_refresh_ofp_port(struct bridge *br)
820 struct ofproto_port_dump dump;
821 struct ofproto_port ofproto_port;
824 /* Clear all the "ofp_port"es. */
825 hmap_clear(&br->ifaces);
826 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
829 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
830 iface->ofp_port = -1;
834 /* Obtain the correct "ofp_port"s from ofproto. */
835 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
836 struct iface *iface = iface_lookup(br, ofproto_port.name);
838 if (iface->ofp_port >= 0) {
839 VLOG_WARN("bridge %s: interface %s reported twice",
840 br->name, ofproto_port.name);
841 } else if (iface_from_ofp_port(br, ofproto_port.ofp_port)) {
842 VLOG_WARN("bridge %s: interface %"PRIu16" reported twice",
843 br->name, ofproto_port.ofp_port);
845 iface_set_ofp_port(iface, ofproto_port.ofp_port);
851 /* Add an ofproto port for any "struct iface" that doesn't have one.
852 * Delete any "struct iface" for which this fails.
853 * Delete any "struct port" that thereby ends up with no ifaces. */
855 bridge_add_ofproto_ports(struct bridge *br)
857 struct port *port, *next_port;
859 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
860 struct iface *iface, *next_iface;
861 struct ofproto_port ofproto_port;
863 LIST_FOR_EACH_SAFE (iface, next_iface, port_elem, &port->ifaces) {
867 /* Open the netdev or reconfigure it. */
869 shash_from_ovs_idl_map(iface->cfg->key_options,
870 iface->cfg->value_options,
871 iface->cfg->n_options, &args);
872 if (!iface->netdev) {
873 struct netdev_options options;
874 options.name = iface->name;
875 options.type = iface->type;
876 options.args = &args;
877 options.ethertype = NETDEV_ETH_TYPE_NONE;
878 error = netdev_open(&options, &iface->netdev);
880 error = netdev_set_config(iface->netdev, &args);
882 shash_destroy(&args);
884 VLOG_WARN("could not %s network device %s (%s)",
885 iface->netdev ? "reconfigure" : "open",
886 iface->name, strerror(error));
889 /* Add the port, if necessary. */
890 if (iface->netdev && iface->ofp_port < 0) {
894 error = ofproto_port_add(br->ofproto, iface->netdev,
897 iface_set_ofp_port(iface, ofp_port);
899 netdev_close(iface->netdev);
900 iface->netdev = NULL;
904 /* Delete the iface if */
905 if (iface->netdev && iface->ofp_port >= 0) {
906 VLOG_DBG("bridge %s: interface %s is on port %d",
907 br->name, iface->name, iface->ofp_port);
910 VLOG_ERR("bridge %s: missing %s interface, dropping",
911 br->name, iface->name);
913 /* We already reported a related error, don't bother
916 iface_set_ofport(iface->cfg, -1);
917 iface_destroy(iface);
920 if (list_is_empty(&port->ifaces)) {
921 VLOG_WARN("%s port has no interfaces, dropping", port->name);
926 /* Add bond fake iface if necessary. */
927 if (port_is_bond_fake_iface(port)) {
928 if (ofproto_port_query_by_name(br->ofproto, port->name,
930 struct netdev_options options;
931 struct netdev *netdev;
934 options.name = port->name;
935 options.type = "internal";
937 options.ethertype = NETDEV_ETH_TYPE_NONE;
938 error = netdev_open(&options, &netdev);
940 ofproto_port_add(br->ofproto, netdev, NULL);
941 netdev_close(netdev);
943 VLOG_WARN("could not open network device %s (%s)",
944 port->name, strerror(error));
947 /* Already exists, nothing to do. */
948 ofproto_port_destroy(&ofproto_port);
950 ofproto_port_destroy(&ofproto_port);
956 get_ovsrec_key_value(const struct ovsdb_idl_row *row,
957 const struct ovsdb_idl_column *column,
960 const struct ovsdb_datum *datum;
961 union ovsdb_atom atom;
964 datum = ovsdb_idl_get(row, column, OVSDB_TYPE_STRING, OVSDB_TYPE_STRING);
965 atom.string = (char *) key;
966 idx = ovsdb_datum_find_key(datum, &atom, OVSDB_TYPE_STRING);
967 return idx == UINT_MAX ? NULL : datum->values[idx].string;
971 bridge_get_other_config(const struct ovsrec_bridge *br_cfg, const char *key)
973 return get_ovsrec_key_value(&br_cfg->header_,
974 &ovsrec_bridge_col_other_config, key);
978 bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
979 struct iface **hw_addr_iface)
985 *hw_addr_iface = NULL;
987 /* Did the user request a particular MAC? */
988 hwaddr = bridge_get_other_config(br->cfg, "hwaddr");
989 if (hwaddr && eth_addr_from_string(hwaddr, ea)) {
990 if (eth_addr_is_multicast(ea)) {
991 VLOG_ERR("bridge %s: cannot set MAC address to multicast "
992 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
993 } else if (eth_addr_is_zero(ea)) {
994 VLOG_ERR("bridge %s: cannot set MAC address to zero", br->name);
1000 /* Otherwise choose the minimum non-local MAC address among all of the
1002 memset(ea, 0xff, ETH_ADDR_LEN);
1003 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1004 uint8_t iface_ea[ETH_ADDR_LEN];
1005 struct iface *candidate;
1006 struct iface *iface;
1008 /* Mirror output ports don't participate. */
1009 if (ofproto_is_mirror_output_bundle(br->ofproto, port)) {
1013 /* Choose the MAC address to represent the port. */
1015 if (port->cfg->mac && eth_addr_from_string(port->cfg->mac, iface_ea)) {
1016 /* Find the interface with this Ethernet address (if any) so that
1017 * we can provide the correct devname to the caller. */
1018 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1019 uint8_t candidate_ea[ETH_ADDR_LEN];
1020 if (!netdev_get_etheraddr(candidate->netdev, candidate_ea)
1021 && eth_addr_equals(iface_ea, candidate_ea)) {
1026 /* Choose the interface whose MAC address will represent the port.
1027 * The Linux kernel bonding code always chooses the MAC address of
1028 * the first slave added to a bond, and the Fedora networking
1029 * scripts always add slaves to a bond in alphabetical order, so
1030 * for compatibility we choose the interface with the name that is
1031 * first in alphabetical order. */
1032 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1033 if (!iface || strcmp(candidate->name, iface->name) < 0) {
1038 /* The local port doesn't count (since we're trying to choose its
1039 * MAC address anyway). */
1040 if (iface->ofp_port == OFPP_LOCAL) {
1045 error = netdev_get_etheraddr(iface->netdev, iface_ea);
1047 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1048 VLOG_ERR_RL(&rl, "failed to obtain Ethernet address of %s: %s",
1049 iface->name, strerror(error));
1054 /* Compare against our current choice. */
1055 if (!eth_addr_is_multicast(iface_ea) &&
1056 !eth_addr_is_local(iface_ea) &&
1057 !eth_addr_is_reserved(iface_ea) &&
1058 !eth_addr_is_zero(iface_ea) &&
1059 eth_addr_compare_3way(iface_ea, ea) < 0)
1061 memcpy(ea, iface_ea, ETH_ADDR_LEN);
1062 *hw_addr_iface = iface;
1065 if (eth_addr_is_multicast(ea)) {
1066 memcpy(ea, br->default_ea, ETH_ADDR_LEN);
1067 *hw_addr_iface = NULL;
1068 VLOG_WARN("bridge %s: using default bridge Ethernet "
1069 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1071 VLOG_DBG("bridge %s: using bridge Ethernet address "ETH_ADDR_FMT,
1072 br->name, ETH_ADDR_ARGS(ea));
1076 /* Choose and returns the datapath ID for bridge 'br' given that the bridge
1077 * Ethernet address is 'bridge_ea'. If 'bridge_ea' is the Ethernet address of
1078 * an interface on 'br', then that interface must be passed in as
1079 * 'hw_addr_iface'; if 'bridge_ea' was derived some other way, then
1080 * 'hw_addr_iface' must be passed in as a null pointer. */
1082 bridge_pick_datapath_id(struct bridge *br,
1083 const uint8_t bridge_ea[ETH_ADDR_LEN],
1084 struct iface *hw_addr_iface)
1087 * The procedure for choosing a bridge MAC address will, in the most
1088 * ordinary case, also choose a unique MAC that we can use as a datapath
1089 * ID. In some special cases, though, multiple bridges will end up with
1090 * the same MAC address. This is OK for the bridges, but it will confuse
1091 * the OpenFlow controller, because each datapath needs a unique datapath
1094 * Datapath IDs must be unique. It is also very desirable that they be
1095 * stable from one run to the next, so that policy set on a datapath
1098 const char *datapath_id;
1101 datapath_id = bridge_get_other_config(br->cfg, "datapath-id");
1102 if (datapath_id && dpid_from_string(datapath_id, &dpid)) {
1106 if (hw_addr_iface) {
1108 if (!netdev_get_vlan_vid(hw_addr_iface->netdev, &vlan)) {
1110 * A bridge whose MAC address is taken from a VLAN network device
1111 * (that is, a network device created with vconfig(8) or similar
1112 * tool) will have the same MAC address as a bridge on the VLAN
1113 * device's physical network device.
1115 * Handle this case by hashing the physical network device MAC
1116 * along with the VLAN identifier.
1118 uint8_t buf[ETH_ADDR_LEN + 2];
1119 memcpy(buf, bridge_ea, ETH_ADDR_LEN);
1120 buf[ETH_ADDR_LEN] = vlan >> 8;
1121 buf[ETH_ADDR_LEN + 1] = vlan;
1122 return dpid_from_hash(buf, sizeof buf);
1125 * Assume that this bridge's MAC address is unique, since it
1126 * doesn't fit any of the cases we handle specially.
1131 * A purely internal bridge, that is, one that has no non-virtual
1132 * network devices on it at all, is more difficult because it has no
1133 * natural unique identifier at all.
1135 * When the host is a XenServer, we handle this case by hashing the
1136 * host's UUID with the name of the bridge. Names of bridges are
1137 * persistent across XenServer reboots, although they can be reused if
1138 * an internal network is destroyed and then a new one is later
1139 * created, so this is fairly effective.
1141 * When the host is not a XenServer, we punt by using a random MAC
1142 * address on each run.
1144 const char *host_uuid = xenserver_get_host_uuid();
1146 char *combined = xasprintf("%s,%s", host_uuid, br->name);
1147 dpid = dpid_from_hash(combined, strlen(combined));
1153 return eth_addr_to_uint64(bridge_ea);
1157 dpid_from_hash(const void *data, size_t n)
1159 uint8_t hash[SHA1_DIGEST_SIZE];
1161 BUILD_ASSERT_DECL(sizeof hash >= ETH_ADDR_LEN);
1162 sha1_bytes(data, n, hash);
1163 eth_addr_mark_random(hash);
1164 return eth_addr_to_uint64(hash);
1168 iface_refresh_status(struct iface *iface)
1172 enum netdev_flags flags;
1179 if (iface_is_synthetic(iface)) {
1185 if (!netdev_get_status(iface->netdev, &sh)) {
1187 char **keys, **values;
1189 shash_to_ovs_idl_map(&sh, &keys, &values, &n);
1190 ovsrec_interface_set_status(iface->cfg, keys, values, n);
1195 ovsrec_interface_set_status(iface->cfg, NULL, NULL, 0);
1198 shash_destroy_free_data(&sh);
1200 error = netdev_get_flags(iface->netdev, &flags);
1202 ovsrec_interface_set_admin_state(iface->cfg, flags & NETDEV_UP ? "up" : "down");
1205 ovsrec_interface_set_admin_state(iface->cfg, NULL);
1208 error = netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
1210 ovsrec_interface_set_duplex(iface->cfg,
1211 netdev_features_is_full_duplex(current)
1213 /* warning: uint64_t -> int64_t conversion */
1214 bps = netdev_features_to_bps(current);
1215 ovsrec_interface_set_link_speed(iface->cfg, &bps, 1);
1218 ovsrec_interface_set_duplex(iface->cfg, NULL);
1219 ovsrec_interface_set_link_speed(iface->cfg, NULL, 0);
1222 ovsrec_interface_set_link_state(iface->cfg,
1223 iface_get_carrier(iface) ? "up" : "down");
1225 error = netdev_get_mtu(iface->netdev, &mtu);
1226 if (!error && mtu != INT_MAX) {
1228 ovsrec_interface_set_mtu(iface->cfg, &mtu_64, 1);
1231 ovsrec_interface_set_mtu(iface->cfg, NULL, 0);
1235 /* Writes 'iface''s CFM statistics to the database. Returns true if anything
1236 * changed, false otherwise. */
1238 iface_refresh_cfm_stats(struct iface *iface)
1240 const struct ovsrec_monitor *mon;
1241 const struct cfm *cfm;
1242 bool changed = false;
1245 mon = iface->cfg->monitor;
1246 cfm = ofproto_port_get_cfm(iface->port->bridge->ofproto, iface->ofp_port);
1252 for (i = 0; i < mon->n_remote_mps; i++) {
1253 const struct ovsrec_maintenance_point *mp;
1254 const struct remote_mp *rmp;
1256 mp = mon->remote_mps[i];
1257 rmp = cfm_get_remote_mp(cfm, mp->mpid);
1259 if (mp->n_fault != 1 || mp->fault[0] != rmp->fault) {
1260 ovsrec_maintenance_point_set_fault(mp, &rmp->fault, 1);
1265 if (mon->n_fault != 1 || mon->fault[0] != cfm->fault) {
1266 ovsrec_monitor_set_fault(mon, &cfm->fault, 1);
1274 iface_refresh_lacp_stats(struct iface *iface)
1276 struct ofproto *ofproto = iface->port->bridge->ofproto;
1277 int old = iface->cfg->lacp_current ? *iface->cfg->lacp_current : -1;
1278 int new = ofproto_port_is_lacp_current(ofproto, iface->ofp_port);
1282 ovsrec_interface_set_lacp_current(iface->cfg, ¤t, new >= 0);
1288 iface_refresh_stats(struct iface *iface)
1294 static const struct iface_stat iface_stats[] = {
1295 { "rx_packets", offsetof(struct netdev_stats, rx_packets) },
1296 { "tx_packets", offsetof(struct netdev_stats, tx_packets) },
1297 { "rx_bytes", offsetof(struct netdev_stats, rx_bytes) },
1298 { "tx_bytes", offsetof(struct netdev_stats, tx_bytes) },
1299 { "rx_dropped", offsetof(struct netdev_stats, rx_dropped) },
1300 { "tx_dropped", offsetof(struct netdev_stats, tx_dropped) },
1301 { "rx_errors", offsetof(struct netdev_stats, rx_errors) },
1302 { "tx_errors", offsetof(struct netdev_stats, tx_errors) },
1303 { "rx_frame_err", offsetof(struct netdev_stats, rx_frame_errors) },
1304 { "rx_over_err", offsetof(struct netdev_stats, rx_over_errors) },
1305 { "rx_crc_err", offsetof(struct netdev_stats, rx_crc_errors) },
1306 { "collisions", offsetof(struct netdev_stats, collisions) },
1308 enum { N_STATS = ARRAY_SIZE(iface_stats) };
1309 const struct iface_stat *s;
1311 char *keys[N_STATS];
1312 int64_t values[N_STATS];
1315 struct netdev_stats stats;
1317 if (iface_is_synthetic(iface)) {
1321 /* Intentionally ignore return value, since errors will set 'stats' to
1322 * all-1s, and we will deal with that correctly below. */
1323 netdev_get_stats(iface->netdev, &stats);
1326 for (s = iface_stats; s < &iface_stats[N_STATS]; s++) {
1327 uint64_t value = *(uint64_t *) (((char *) &stats) + s->offset);
1328 if (value != UINT64_MAX) {
1335 ovsrec_interface_set_statistics(iface->cfg, keys, values, n);
1339 refresh_system_stats(const struct ovsrec_open_vswitch *cfg)
1341 struct ovsdb_datum datum;
1345 get_system_stats(&stats);
1347 ovsdb_datum_from_shash(&datum, &stats);
1348 ovsdb_idl_txn_write(&cfg->header_, &ovsrec_open_vswitch_col_statistics,
1352 static inline const char *
1353 nx_role_to_str(enum nx_role role)
1358 case NX_ROLE_MASTER:
1363 return "*** INVALID ROLE ***";
1368 bridge_refresh_controller_status(const struct bridge *br)
1371 const struct ovsrec_controller *cfg;
1373 ofproto_get_ofproto_controller_info(br->ofproto, &info);
1375 OVSREC_CONTROLLER_FOR_EACH(cfg, idl) {
1376 struct ofproto_controller_info *cinfo =
1377 shash_find_data(&info, cfg->target);
1380 ovsrec_controller_set_is_connected(cfg, cinfo->is_connected);
1381 ovsrec_controller_set_role(cfg, nx_role_to_str(cinfo->role));
1382 ovsrec_controller_set_status(cfg, (char **) cinfo->pairs.keys,
1383 (char **) cinfo->pairs.values,
1386 ovsrec_controller_set_is_connected(cfg, false);
1387 ovsrec_controller_set_role(cfg, NULL);
1388 ovsrec_controller_set_status(cfg, NULL, NULL, 0);
1392 ofproto_free_ofproto_controller_info(&info);
1398 const struct ovsrec_open_vswitch *cfg;
1400 bool datapath_destroyed;
1401 bool database_changed;
1404 /* Let each bridge do the work that it needs to do. */
1405 datapath_destroyed = false;
1406 HMAP_FOR_EACH (br, node, &all_bridges) {
1407 int error = ofproto_run(br->ofproto);
1409 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1410 VLOG_ERR_RL(&rl, "bridge %s: datapath was destroyed externally, "
1411 "forcing reconfiguration", br->name);
1412 datapath_destroyed = true;
1416 /* (Re)configure if necessary. */
1417 database_changed = ovsdb_idl_run(idl);
1418 cfg = ovsrec_open_vswitch_first(idl);
1420 /* Re-configure SSL. We do this on every trip through the main loop,
1421 * instead of just when the database changes, because the contents of the
1422 * key and certificate files can change without the database changing.
1424 * We do this before bridge_reconfigure() because that function might
1425 * initiate SSL connections and thus requires SSL to be configured. */
1426 if (cfg && cfg->ssl) {
1427 const struct ovsrec_ssl *ssl = cfg->ssl;
1429 stream_ssl_set_key_and_cert(ssl->private_key, ssl->certificate);
1430 stream_ssl_set_ca_cert_file(ssl->ca_cert, ssl->bootstrap_ca_cert);
1433 if (database_changed || datapath_destroyed) {
1435 struct ovsdb_idl_txn *txn = ovsdb_idl_txn_create(idl);
1437 bridge_reconfigure(cfg);
1439 ovsrec_open_vswitch_set_cur_cfg(cfg, cfg->next_cfg);
1440 ovsdb_idl_txn_commit(txn);
1441 ovsdb_idl_txn_destroy(txn); /* XXX */
1443 /* We still need to reconfigure to avoid dangling pointers to
1444 * now-destroyed ovsrec structures inside bridge data. */
1445 static const struct ovsrec_open_vswitch null_cfg;
1447 bridge_reconfigure(&null_cfg);
1451 /* Refresh system and interface stats if necessary. */
1452 if (time_msec() >= stats_timer) {
1454 struct ovsdb_idl_txn *txn;
1456 txn = ovsdb_idl_txn_create(idl);
1457 HMAP_FOR_EACH (br, node, &all_bridges) {
1460 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1461 struct iface *iface;
1463 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1464 iface_refresh_stats(iface);
1465 iface_refresh_status(iface);
1468 bridge_refresh_controller_status(br);
1470 refresh_system_stats(cfg);
1471 ovsdb_idl_txn_commit(txn);
1472 ovsdb_idl_txn_destroy(txn); /* XXX */
1475 stats_timer = time_msec() + STATS_INTERVAL;
1478 if (time_msec() >= db_limiter) {
1479 struct ovsdb_idl_txn *txn;
1480 bool changed = false;
1482 txn = ovsdb_idl_txn_create(idl);
1483 HMAP_FOR_EACH (br, node, &all_bridges) {
1486 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1487 struct iface *iface;
1489 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1490 changed = iface_refresh_cfm_stats(iface) || changed;
1491 changed = iface_refresh_lacp_stats(iface) || changed;
1497 db_limiter = time_msec() + DB_LIMIT_INTERVAL;
1500 ovsdb_idl_txn_commit(txn);
1501 ovsdb_idl_txn_destroy(txn);
1510 HMAP_FOR_EACH (br, node, &all_bridges) {
1511 ofproto_wait(br->ofproto);
1513 ovsdb_idl_wait(idl);
1514 poll_timer_wait_until(stats_timer);
1516 if (db_limiter > time_msec()) {
1517 poll_timer_wait_until(db_limiter);
1521 /* CFM unixctl user interface functions. */
1523 cfm_unixctl_show(struct unixctl_conn *conn,
1524 const char *args, void *aux OVS_UNUSED)
1526 struct ds ds = DS_EMPTY_INITIALIZER;
1527 struct iface *iface;
1528 const struct cfm *cfm;
1530 iface = iface_find(args);
1532 unixctl_command_reply(conn, 501, "no such interface");
1536 cfm = ofproto_port_get_cfm(iface->port->bridge->ofproto, iface->ofp_port);
1539 unixctl_command_reply(conn, 501, "CFM not enabled");
1543 cfm_dump_ds(cfm, &ds);
1544 unixctl_command_reply(conn, 200, ds_cstr(&ds));
1548 /* QoS unixctl user interface functions. */
1550 struct qos_unixctl_show_cbdata {
1552 struct iface *iface;
1556 qos_unixctl_show_cb(unsigned int queue_id,
1557 const struct shash *details,
1560 struct qos_unixctl_show_cbdata *data = aux;
1561 struct ds *ds = data->ds;
1562 struct iface *iface = data->iface;
1563 struct netdev_queue_stats stats;
1564 struct shash_node *node;
1567 ds_put_cstr(ds, "\n");
1569 ds_put_format(ds, "Queue %u:\n", queue_id);
1571 ds_put_cstr(ds, "Default:\n");
1574 SHASH_FOR_EACH (node, details) {
1575 ds_put_format(ds, "\t%s: %s\n", node->name, (char *)node->data);
1578 error = netdev_get_queue_stats(iface->netdev, queue_id, &stats);
1580 if (stats.tx_packets != UINT64_MAX) {
1581 ds_put_format(ds, "\ttx_packets: %"PRIu64"\n", stats.tx_packets);
1584 if (stats.tx_bytes != UINT64_MAX) {
1585 ds_put_format(ds, "\ttx_bytes: %"PRIu64"\n", stats.tx_bytes);
1588 if (stats.tx_errors != UINT64_MAX) {
1589 ds_put_format(ds, "\ttx_errors: %"PRIu64"\n", stats.tx_errors);
1592 ds_put_format(ds, "\tFailed to get statistics for queue %u: %s",
1593 queue_id, strerror(error));
1598 qos_unixctl_show(struct unixctl_conn *conn,
1599 const char *args, void *aux OVS_UNUSED)
1601 struct ds ds = DS_EMPTY_INITIALIZER;
1602 struct shash sh = SHASH_INITIALIZER(&sh);
1603 struct iface *iface;
1605 struct shash_node *node;
1606 struct qos_unixctl_show_cbdata data;
1609 iface = iface_find(args);
1611 unixctl_command_reply(conn, 501, "no such interface");
1615 netdev_get_qos(iface->netdev, &type, &sh);
1617 if (*type != '\0') {
1618 ds_put_format(&ds, "QoS: %s %s\n", iface->name, type);
1620 SHASH_FOR_EACH (node, &sh) {
1621 ds_put_format(&ds, "%s: %s\n", node->name, (char *)node->data);
1626 error = netdev_dump_queues(iface->netdev, qos_unixctl_show_cb, &data);
1629 ds_put_format(&ds, "failed to dump queues: %s", strerror(error));
1631 unixctl_command_reply(conn, 200, ds_cstr(&ds));
1633 ds_put_format(&ds, "QoS not configured on %s\n", iface->name);
1634 unixctl_command_reply(conn, 501, ds_cstr(&ds));
1637 shash_destroy_free_data(&sh);
1641 /* Bridge reconfiguration functions. */
1643 bridge_create(const struct ovsrec_bridge *br_cfg)
1647 assert(!bridge_lookup(br_cfg->name));
1648 br = xzalloc(sizeof *br);
1650 br->name = xstrdup(br_cfg->name);
1651 br->type = xstrdup(ofproto_normalize_type(br_cfg->datapath_type));
1653 eth_addr_nicira_random(br->default_ea);
1655 hmap_init(&br->ports);
1656 hmap_init(&br->ifaces);
1657 hmap_init(&br->iface_by_name);
1658 hmap_init(&br->mirrors);
1660 hmap_insert(&all_bridges, &br->node, hash_string(br->name, 0));
1664 bridge_destroy(struct bridge *br)
1667 struct mirror *mirror, *next_mirror;
1668 struct port *port, *next_port;
1670 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
1673 HMAP_FOR_EACH_SAFE (mirror, next_mirror, hmap_node, &br->mirrors) {
1674 mirror_destroy(mirror);
1676 hmap_remove(&all_bridges, &br->node);
1677 ofproto_destroy(br->ofproto);
1678 hmap_destroy(&br->ifaces);
1679 hmap_destroy(&br->ports);
1680 hmap_destroy(&br->iface_by_name);
1681 hmap_destroy(&br->mirrors);
1688 static struct bridge *
1689 bridge_lookup(const char *name)
1693 HMAP_FOR_EACH_WITH_HASH (br, node, hash_string(name, 0), &all_bridges) {
1694 if (!strcmp(br->name, name)) {
1701 /* Handle requests for a listing of all flows known by the OpenFlow
1702 * stack, including those normally hidden. */
1704 bridge_unixctl_dump_flows(struct unixctl_conn *conn,
1705 const char *args, void *aux OVS_UNUSED)
1710 br = bridge_lookup(args);
1712 unixctl_command_reply(conn, 501, "Unknown bridge");
1717 ofproto_get_all_flows(br->ofproto, &results);
1719 unixctl_command_reply(conn, 200, ds_cstr(&results));
1720 ds_destroy(&results);
1723 /* "bridge/reconnect [BRIDGE]": makes BRIDGE drop all of its controller
1724 * connections and reconnect. If BRIDGE is not specified, then all bridges
1725 * drop their controller connections and reconnect. */
1727 bridge_unixctl_reconnect(struct unixctl_conn *conn,
1728 const char *args, void *aux OVS_UNUSED)
1731 if (args[0] != '\0') {
1732 br = bridge_lookup(args);
1734 unixctl_command_reply(conn, 501, "Unknown bridge");
1737 ofproto_reconnect_controllers(br->ofproto);
1739 HMAP_FOR_EACH (br, node, &all_bridges) {
1740 ofproto_reconnect_controllers(br->ofproto);
1743 unixctl_command_reply(conn, 200, NULL);
1747 bridge_get_controllers(const struct bridge *br,
1748 struct ovsrec_controller ***controllersp)
1750 struct ovsrec_controller **controllers;
1751 size_t n_controllers;
1753 controllers = br->cfg->controller;
1754 n_controllers = br->cfg->n_controller;
1756 if (n_controllers == 1 && !strcmp(controllers[0]->target, "none")) {
1762 *controllersp = controllers;
1764 return n_controllers;
1767 /* Adds and deletes "struct port"s and "struct iface"s under 'br' to match
1768 * those configured in 'br->cfg'. */
1770 bridge_add_del_ports(struct bridge *br)
1772 struct port *port, *next;
1773 struct shash_node *node;
1774 struct shash new_ports;
1777 /* Collect new ports. */
1778 shash_init(&new_ports);
1779 for (i = 0; i < br->cfg->n_ports; i++) {
1780 const char *name = br->cfg->ports[i]->name;
1781 if (!shash_add_once(&new_ports, name, br->cfg->ports[i])) {
1782 VLOG_WARN("bridge %s: %s specified twice as bridge port",
1786 if (bridge_get_controllers(br, NULL)
1787 && !shash_find(&new_ports, br->name)) {
1788 VLOG_WARN("bridge %s: no port named %s, synthesizing one",
1789 br->name, br->name);
1791 br->synth_local_port.interfaces = &br->synth_local_ifacep;
1792 br->synth_local_port.n_interfaces = 1;
1793 br->synth_local_port.name = br->name;
1795 br->synth_local_iface.name = br->name;
1796 br->synth_local_iface.type = "internal";
1798 br->synth_local_ifacep = &br->synth_local_iface;
1800 shash_add(&new_ports, br->name, &br->synth_local_port);
1803 /* Get rid of deleted ports.
1804 * Get rid of deleted interfaces on ports that still exist.
1805 * Update 'cfg' of ports that still exist. */
1806 HMAP_FOR_EACH_SAFE (port, next, hmap_node, &br->ports) {
1807 port->cfg = shash_find_data(&new_ports, port->name);
1811 port_del_ifaces(port);
1815 /* Create new ports.
1816 * Add new interfaces to existing ports. */
1817 SHASH_FOR_EACH (node, &new_ports) {
1818 struct port *port = port_lookup(br, node->name);
1820 struct ovsrec_port *cfg = node->data;
1821 port = port_create(br, cfg);
1823 port_add_ifaces(port);
1824 if (list_is_empty(&port->ifaces)) {
1825 VLOG_WARN("bridge %s: port %s has no interfaces, dropping",
1826 br->name, port->name);
1830 shash_destroy(&new_ports);
1833 /* Initializes 'oc' appropriately as a management service controller for
1836 * The caller must free oc->target when it is no longer needed. */
1838 bridge_ofproto_controller_for_mgmt(const struct bridge *br,
1839 struct ofproto_controller *oc)
1841 oc->target = xasprintf("punix:%s/%s.mgmt", ovs_rundir(), br->name);
1842 oc->max_backoff = 0;
1843 oc->probe_interval = 60;
1844 oc->band = OFPROTO_OUT_OF_BAND;
1846 oc->burst_limit = 0;
1849 /* Converts ovsrec_controller 'c' into an ofproto_controller in 'oc'. */
1851 bridge_ofproto_controller_from_ovsrec(const struct ovsrec_controller *c,
1852 struct ofproto_controller *oc)
1854 oc->target = c->target;
1855 oc->max_backoff = c->max_backoff ? *c->max_backoff / 1000 : 8;
1856 oc->probe_interval = c->inactivity_probe ? *c->inactivity_probe / 1000 : 5;
1857 oc->band = (!c->connection_mode || !strcmp(c->connection_mode, "in-band")
1858 ? OFPROTO_IN_BAND : OFPROTO_OUT_OF_BAND);
1859 oc->rate_limit = c->controller_rate_limit ? *c->controller_rate_limit : 0;
1860 oc->burst_limit = (c->controller_burst_limit
1861 ? *c->controller_burst_limit : 0);
1864 /* Configures the IP stack for 'br''s local interface properly according to the
1865 * configuration in 'c'. */
1867 bridge_configure_local_iface_netdev(struct bridge *br,
1868 struct ovsrec_controller *c)
1870 struct netdev *netdev;
1871 struct in_addr mask, gateway;
1873 struct iface *local_iface;
1876 /* If there's no local interface or no IP address, give up. */
1877 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
1878 if (!local_iface || !c->local_ip || !inet_aton(c->local_ip, &ip)) {
1882 /* Bring up the local interface. */
1883 netdev = local_iface->netdev;
1884 netdev_turn_flags_on(netdev, NETDEV_UP, true);
1886 /* Configure the IP address and netmask. */
1887 if (!c->local_netmask
1888 || !inet_aton(c->local_netmask, &mask)
1890 mask.s_addr = guess_netmask(ip.s_addr);
1892 if (!netdev_set_in4(netdev, ip, mask)) {
1893 VLOG_INFO("bridge %s: configured IP address "IP_FMT", netmask "IP_FMT,
1894 br->name, IP_ARGS(&ip.s_addr), IP_ARGS(&mask.s_addr));
1897 /* Configure the default gateway. */
1898 if (c->local_gateway
1899 && inet_aton(c->local_gateway, &gateway)
1900 && gateway.s_addr) {
1901 if (!netdev_add_router(netdev, gateway)) {
1902 VLOG_INFO("bridge %s: configured gateway "IP_FMT,
1903 br->name, IP_ARGS(&gateway.s_addr));
1909 bridge_configure_remotes(struct bridge *br,
1910 const struct sockaddr_in *managers, size_t n_managers)
1912 const char *disable_ib_str, *queue_id_str;
1913 bool disable_in_band = false;
1916 struct ovsrec_controller **controllers;
1917 size_t n_controllers;
1919 enum ofproto_fail_mode fail_mode;
1921 struct ofproto_controller *ocs;
1925 /* Check if we should disable in-band control on this bridge. */
1926 disable_ib_str = bridge_get_other_config(br->cfg, "disable-in-band");
1927 if (disable_ib_str && !strcmp(disable_ib_str, "true")) {
1928 disable_in_band = true;
1931 /* Set OpenFlow queue ID for in-band control. */
1932 queue_id_str = bridge_get_other_config(br->cfg, "in-band-queue");
1933 queue_id = queue_id_str ? strtol(queue_id_str, NULL, 10) : -1;
1934 ofproto_set_in_band_queue(br->ofproto, queue_id);
1936 if (disable_in_band) {
1937 ofproto_set_extra_in_band_remotes(br->ofproto, NULL, 0);
1939 ofproto_set_extra_in_band_remotes(br->ofproto, managers, n_managers);
1942 n_controllers = bridge_get_controllers(br, &controllers);
1944 ocs = xmalloc((n_controllers + 1) * sizeof *ocs);
1947 bridge_ofproto_controller_for_mgmt(br, &ocs[n_ocs++]);
1948 for (i = 0; i < n_controllers; i++) {
1949 struct ovsrec_controller *c = controllers[i];
1951 if (!strncmp(c->target, "punix:", 6)
1952 || !strncmp(c->target, "unix:", 5)) {
1953 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1955 /* Prevent remote ovsdb-server users from accessing arbitrary Unix
1956 * domain sockets and overwriting arbitrary local files. */
1957 VLOG_ERR_RL(&rl, "bridge %s: not adding Unix domain socket "
1958 "controller \"%s\" due to possibility for remote "
1959 "exploit", br->name, c->target);
1963 bridge_configure_local_iface_netdev(br, c);
1964 bridge_ofproto_controller_from_ovsrec(c, &ocs[n_ocs]);
1965 if (disable_in_band) {
1966 ocs[n_ocs].band = OFPROTO_OUT_OF_BAND;
1971 ofproto_set_controllers(br->ofproto, ocs, n_ocs);
1972 free(ocs[0].target); /* From bridge_ofproto_controller_for_mgmt(). */
1975 /* Set the fail-mode. */
1976 fail_mode = !br->cfg->fail_mode
1977 || !strcmp(br->cfg->fail_mode, "standalone")
1978 ? OFPROTO_FAIL_STANDALONE
1979 : OFPROTO_FAIL_SECURE;
1980 ofproto_set_fail_mode(br->ofproto, fail_mode);
1982 /* Configure OpenFlow controller connection snooping. */
1983 if (!ofproto_has_snoops(br->ofproto)) {
1987 sset_add_and_free(&snoops, xasprintf("punix:%s/%s.snoop",
1988 ovs_rundir(), br->name));
1989 ofproto_set_snoops(br->ofproto, &snoops);
1990 sset_destroy(&snoops);
1994 /* Port functions. */
1996 static struct port *
1997 port_create(struct bridge *br, const struct ovsrec_port *cfg)
2001 port = xzalloc(sizeof *port);
2003 port->name = xstrdup(cfg->name);
2005 list_init(&port->ifaces);
2007 hmap_insert(&br->ports, &port->hmap_node, hash_string(port->name, 0));
2009 VLOG_INFO("created port %s on bridge %s", port->name, br->name);
2015 get_port_other_config(const struct ovsrec_port *port, const char *key,
2016 const char *default_value)
2020 value = get_ovsrec_key_value(&port->header_, &ovsrec_port_col_other_config,
2022 return value ? value : default_value;
2026 get_interface_other_config(const struct ovsrec_interface *iface,
2027 const char *key, const char *default_value)
2031 value = get_ovsrec_key_value(&iface->header_,
2032 &ovsrec_interface_col_other_config, key);
2033 return value ? value : default_value;
2036 /* Deletes interfaces from 'port' that are no longer configured for it. */
2038 port_del_ifaces(struct port *port)
2040 struct iface *iface, *next;
2041 struct sset new_ifaces;
2044 /* Collect list of new interfaces. */
2045 sset_init(&new_ifaces);
2046 for (i = 0; i < port->cfg->n_interfaces; i++) {
2047 const char *name = port->cfg->interfaces[i]->name;
2048 sset_add(&new_ifaces, name);
2051 /* Get rid of deleted interfaces. */
2052 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2053 if (!sset_contains(&new_ifaces, iface->name)) {
2054 iface_destroy(iface);
2058 sset_destroy(&new_ifaces);
2061 /* Adds new interfaces to 'port' and updates 'type' and 'cfg' members of
2064 port_add_ifaces(struct port *port)
2066 struct shash new_ifaces;
2067 struct shash_node *node;
2070 /* Collect new ifaces. */
2071 shash_init(&new_ifaces);
2072 for (i = 0; i < port->cfg->n_interfaces; i++) {
2073 const struct ovsrec_interface *cfg = port->cfg->interfaces[i];
2074 if (!shash_add_once(&new_ifaces, cfg->name, cfg)) {
2075 VLOG_WARN("port %s: %s specified twice as port interface",
2076 port->name, cfg->name);
2077 iface_set_ofport(cfg, -1);
2081 /* Create new interfaces.
2082 * Update interface types and 'cfg' members. */
2083 SHASH_FOR_EACH (node, &new_ifaces) {
2084 const struct ovsrec_interface *cfg = node->data;
2085 const char *iface_name = node->name;
2086 struct iface *iface;
2088 iface = iface_lookup(port->bridge, iface_name);
2090 iface = iface_create(port, cfg);
2095 /* Determine interface type. The local port always has type
2096 * "internal". Other ports take their type from the database and
2097 * default to "system" if none is specified. */
2098 iface->type = (!strcmp(iface_name, port->bridge->name) ? "internal"
2099 : cfg->type[0] ? cfg->type
2102 shash_destroy(&new_ifaces);
2106 port_destroy(struct port *port)
2109 struct bridge *br = port->bridge;
2110 struct iface *iface, *next;
2113 ofproto_bundle_unregister(br->ofproto, port);
2116 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2117 iface_destroy(iface);
2120 hmap_remove(&br->ports, &port->hmap_node);
2122 VLOG_INFO("destroyed port %s on bridge %s", port->name, br->name);
2129 static struct port *
2130 port_lookup(const struct bridge *br, const char *name)
2134 HMAP_FOR_EACH_WITH_HASH (port, hmap_node, hash_string(name, 0),
2136 if (!strcmp(port->name, name)) {
2144 enable_lacp(struct port *port, bool *activep)
2146 if (!port->cfg->lacp) {
2147 /* XXX when LACP implementation has been sufficiently tested, enable by
2148 * default and make active on bonded ports. */
2150 } else if (!strcmp(port->cfg->lacp, "off")) {
2152 } else if (!strcmp(port->cfg->lacp, "active")) {
2155 } else if (!strcmp(port->cfg->lacp, "passive")) {
2159 VLOG_WARN("port %s: unknown LACP mode %s",
2160 port->name, port->cfg->lacp);
2165 static struct lacp_settings *
2166 port_configure_lacp(struct port *port, struct lacp_settings *s)
2168 const char *lacp_time;
2169 long long int custom_time;
2172 if (!enable_lacp(port, &s->active)) {
2176 s->name = port->name;
2177 memcpy(s->id, port->bridge->ea, ETH_ADDR_LEN);
2179 /* Prefer bondable links if unspecified. */
2180 priority = atoi(get_port_other_config(port->cfg, "lacp-system-priority",
2182 s->priority = (priority > 0 && priority <= UINT16_MAX
2184 : UINT16_MAX - !list_is_short(&port->ifaces));
2186 s->strict = !strcmp(get_port_other_config(port->cfg, "lacp-strict",
2190 lacp_time = get_port_other_config(port->cfg, "lacp-time", "slow");
2191 custom_time = atoi(lacp_time);
2192 if (!strcmp(lacp_time, "fast")) {
2193 s->lacp_time = LACP_TIME_FAST;
2194 } else if (!strcmp(lacp_time, "slow")) {
2195 s->lacp_time = LACP_TIME_SLOW;
2196 } else if (custom_time > 0) {
2197 s->lacp_time = LACP_TIME_CUSTOM;
2198 s->custom_time = custom_time;
2200 s->lacp_time = LACP_TIME_SLOW;
2207 iface_configure_lacp(struct iface *iface, struct lacp_slave_settings *s)
2209 int priority, portid;
2211 portid = atoi(get_interface_other_config(iface->cfg, "lacp-port-id", "0"));
2212 priority = atoi(get_interface_other_config(iface->cfg,
2213 "lacp-port-priority", "0"));
2215 if (portid <= 0 || portid > UINT16_MAX) {
2216 portid = iface->ofp_port;
2219 if (priority <= 0 || priority > UINT16_MAX) {
2220 priority = UINT16_MAX;
2223 s->name = iface->name;
2225 s->priority = priority;
2229 port_configure_bond(struct port *port, struct bond_settings *s)
2231 const char *detect_s;
2233 s->name = port->name;
2234 s->balance = BM_SLB;
2235 if (port->cfg->bond_mode
2236 && !bond_mode_from_string(&s->balance, port->cfg->bond_mode)) {
2237 VLOG_WARN("port %s: unknown bond_mode %s, defaulting to %s",
2238 port->name, port->cfg->bond_mode,
2239 bond_mode_to_string(s->balance));
2242 s->detect = BLSM_CARRIER;
2243 detect_s = get_port_other_config(port->cfg, "bond-detect-mode", NULL);
2244 if (detect_s && !bond_detect_mode_from_string(&s->detect, detect_s)) {
2245 VLOG_WARN("port %s: unsupported bond-detect-mode %s, "
2247 port->name, detect_s, bond_detect_mode_to_string(s->detect));
2250 s->miimon_interval = atoi(
2251 get_port_other_config(port->cfg, "bond-miimon-interval", "200"));
2252 if (s->miimon_interval < 100) {
2253 s->miimon_interval = 100;
2256 s->up_delay = MAX(0, port->cfg->bond_updelay);
2257 s->down_delay = MAX(0, port->cfg->bond_downdelay);
2258 s->rebalance_interval = atoi(
2259 get_port_other_config(port->cfg, "bond-rebalance-interval", "10000"));
2260 if (s->rebalance_interval < 1000) {
2261 s->rebalance_interval = 1000;
2264 s->fake_iface = port->cfg->bond_fake_iface;
2267 /* Interface functions. */
2269 static struct iface *
2270 iface_create(struct port *port, const struct ovsrec_interface *if_cfg)
2272 struct bridge *br = port->bridge;
2273 struct iface *iface;
2274 char *name = if_cfg->name;
2276 iface = xzalloc(sizeof *iface);
2278 iface->name = xstrdup(name);
2279 iface->ofp_port = -1;
2280 iface->tag = tag_create_random();
2281 iface->netdev = NULL;
2282 iface->cfg = if_cfg;
2284 hmap_insert(&br->iface_by_name, &iface->name_node, hash_string(name, 0));
2286 list_push_back(&port->ifaces, &iface->port_elem);
2288 VLOG_DBG("attached network device %s to port %s", iface->name, port->name);
2294 iface_destroy(struct iface *iface)
2297 struct port *port = iface->port;
2298 struct bridge *br = port->bridge;
2300 if (br->ofproto && iface->ofp_port >= 0) {
2301 ofproto_port_unregister(br->ofproto, iface->ofp_port);
2304 if (iface->ofp_port >= 0) {
2305 hmap_remove(&br->ifaces, &iface->ofp_port_node);
2308 list_remove(&iface->port_elem);
2309 hmap_remove(&br->iface_by_name, &iface->name_node);
2311 netdev_close(iface->netdev);
2318 static struct iface *
2319 iface_lookup(const struct bridge *br, const char *name)
2321 struct iface *iface;
2323 HMAP_FOR_EACH_WITH_HASH (iface, name_node, hash_string(name, 0),
2324 &br->iface_by_name) {
2325 if (!strcmp(iface->name, name)) {
2333 static struct iface *
2334 iface_find(const char *name)
2336 const struct bridge *br;
2338 HMAP_FOR_EACH (br, node, &all_bridges) {
2339 struct iface *iface = iface_lookup(br, name);
2348 static struct iface *
2349 iface_from_ofp_port(const struct bridge *br, uint16_t ofp_port)
2351 struct iface *iface;
2353 HMAP_FOR_EACH_IN_BUCKET (iface, ofp_port_node,
2354 hash_int(ofp_port, 0), &br->ifaces) {
2355 if (iface->ofp_port == ofp_port) {
2362 /* Set Ethernet address of 'iface', if one is specified in the configuration
2365 iface_set_mac(struct iface *iface)
2367 uint8_t ea[ETH_ADDR_LEN];
2369 if (!strcmp(iface->type, "internal")
2370 && iface->cfg->mac && eth_addr_from_string(iface->cfg->mac, ea)) {
2371 if (iface->ofp_port == OFPP_LOCAL) {
2372 VLOG_ERR("interface %s: ignoring mac in Interface record "
2373 "(use Bridge record to set local port's mac)",
2375 } else if (eth_addr_is_multicast(ea)) {
2376 VLOG_ERR("interface %s: cannot set MAC to multicast address",
2379 int error = netdev_set_etheraddr(iface->netdev, ea);
2381 VLOG_ERR("interface %s: setting MAC failed (%s)",
2382 iface->name, strerror(error));
2388 /* Sets the ofport column of 'if_cfg' to 'ofport'. */
2390 iface_set_ofport(const struct ovsrec_interface *if_cfg, int64_t ofport)
2392 if (if_cfg && !ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
2393 ovsrec_interface_set_ofport(if_cfg, &ofport, 1);
2397 /* Adds the 'n' key-value pairs in 'keys' in 'values' to 'shash'.
2399 * The value strings in '*shash' are taken directly from values[], not copied,
2400 * so the caller should not modify or free them. */
2402 shash_from_ovs_idl_map(char **keys, char **values, size_t n,
2403 struct shash *shash)
2408 for (i = 0; i < n; i++) {
2409 shash_add(shash, keys[i], values[i]);
2413 /* Creates 'keys' and 'values' arrays from 'shash'.
2415 * Sets 'keys' and 'values' to heap allocated arrays representing the key-value
2416 * pairs in 'shash'. The caller takes ownership of 'keys' and 'values'. They
2417 * are populated with with strings taken directly from 'shash' and thus have
2418 * the same ownership of the key-value pairs in shash.
2421 shash_to_ovs_idl_map(struct shash *shash,
2422 char ***keys, char ***values, size_t *n)
2426 struct shash_node *sn;
2428 count = shash_count(shash);
2430 k = xmalloc(count * sizeof *k);
2431 v = xmalloc(count * sizeof *v);
2434 SHASH_FOR_EACH(sn, shash) {
2445 struct iface_delete_queues_cbdata {
2446 struct netdev *netdev;
2447 const struct ovsdb_datum *queues;
2451 queue_ids_include(const struct ovsdb_datum *queues, int64_t target)
2453 union ovsdb_atom atom;
2455 atom.integer = target;
2456 return ovsdb_datum_find_key(queues, &atom, OVSDB_TYPE_INTEGER) != UINT_MAX;
2460 iface_delete_queues(unsigned int queue_id,
2461 const struct shash *details OVS_UNUSED, void *cbdata_)
2463 struct iface_delete_queues_cbdata *cbdata = cbdata_;
2465 if (!queue_ids_include(cbdata->queues, queue_id)) {
2466 netdev_delete_queue(cbdata->netdev, queue_id);
2471 iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos)
2473 if (!qos || qos->type[0] == '\0') {
2474 netdev_set_qos(iface->netdev, NULL, NULL);
2476 struct iface_delete_queues_cbdata cbdata;
2477 struct shash details;
2480 /* Configure top-level Qos for 'iface'. */
2481 shash_from_ovs_idl_map(qos->key_other_config, qos->value_other_config,
2482 qos->n_other_config, &details);
2483 netdev_set_qos(iface->netdev, qos->type, &details);
2484 shash_destroy(&details);
2486 /* Deconfigure queues that were deleted. */
2487 cbdata.netdev = iface->netdev;
2488 cbdata.queues = ovsrec_qos_get_queues(qos, OVSDB_TYPE_INTEGER,
2490 netdev_dump_queues(iface->netdev, iface_delete_queues, &cbdata);
2492 /* Configure queues for 'iface'. */
2493 for (i = 0; i < qos->n_queues; i++) {
2494 const struct ovsrec_queue *queue = qos->value_queues[i];
2495 unsigned int queue_id = qos->key_queues[i];
2497 shash_from_ovs_idl_map(queue->key_other_config,
2498 queue->value_other_config,
2499 queue->n_other_config, &details);
2500 netdev_set_queue(iface->netdev, queue_id, &details);
2501 shash_destroy(&details);
2505 netdev_set_policing(iface->netdev,
2506 iface->cfg->ingress_policing_rate,
2507 iface->cfg->ingress_policing_burst);
2511 iface_configure_cfm(struct iface *iface)
2515 uint16_t *remote_mps;
2516 struct ovsrec_monitor *mon;
2517 uint8_t maid[CCM_MAID_LEN];
2519 mon = iface->cfg->monitor;
2522 ofproto_port_clear_cfm(iface->port->bridge->ofproto, iface->ofp_port);
2526 if (!cfm_generate_maid(mon->md_name, mon->ma_name, maid)) {
2527 VLOG_WARN("interface %s: Failed to generate MAID.", iface->name);
2531 cfm.mpid = mon->mpid;
2532 cfm.interval = mon->interval ? *mon->interval : 1000;
2534 memcpy(cfm.maid, maid, sizeof cfm.maid);
2536 remote_mps = xzalloc(mon->n_remote_mps * sizeof *remote_mps);
2537 for(i = 0; i < mon->n_remote_mps; i++) {
2538 remote_mps[i] = mon->remote_mps[i]->mpid;
2541 ofproto_port_set_cfm(iface->port->bridge->ofproto, iface->ofp_port,
2542 &cfm, remote_mps, mon->n_remote_mps);
2546 /* Read carrier or miimon status directly from 'iface''s netdev, according to
2547 * how 'iface''s port is configured.
2549 * Returns true if 'iface' is up, false otherwise. */
2551 iface_get_carrier(const struct iface *iface)
2554 return netdev_get_carrier(iface->netdev);
2557 /* Returns true if 'iface' is synthetic, that is, if we constructed it locally
2558 * instead of obtaining it from the database. */
2560 iface_is_synthetic(const struct iface *iface)
2562 return ovsdb_idl_row_is_synthetic(&iface->cfg->header_);
2565 /* Port mirroring. */
2567 static struct mirror *
2568 mirror_find_by_uuid(struct bridge *br, const struct uuid *uuid)
2572 HMAP_FOR_EACH_IN_BUCKET (m, hmap_node, uuid_hash(uuid), &br->mirrors) {
2573 if (uuid_equals(uuid, &m->uuid)) {
2581 bridge_configure_mirrors(struct bridge *br)
2583 const struct ovsdb_datum *mc;
2584 unsigned long *flood_vlans;
2585 struct mirror *m, *next;
2588 /* Get rid of deleted mirrors. */
2589 mc = ovsrec_bridge_get_mirrors(br->cfg, OVSDB_TYPE_UUID);
2590 HMAP_FOR_EACH_SAFE (m, next, hmap_node, &br->mirrors) {
2591 union ovsdb_atom atom;
2593 atom.uuid = m->uuid;
2594 if (ovsdb_datum_find_key(mc, &atom, OVSDB_TYPE_UUID) == UINT_MAX) {
2599 /* Add new mirrors and reconfigure existing ones. */
2600 for (i = 0; i < br->cfg->n_mirrors; i++) {
2601 const struct ovsrec_mirror *cfg = br->cfg->mirrors[i];
2602 struct mirror *m = mirror_find_by_uuid(br, &cfg->header_.uuid);
2604 m = mirror_create(br, cfg);
2606 if (!mirror_configure(m, cfg)) {
2611 /* Update flooded vlans (for RSPAN). */
2612 flood_vlans = vlan_bitmap_from_array(br->cfg->flood_vlans,
2613 br->cfg->n_flood_vlans);
2614 ofproto_set_flood_vlans(br->ofproto, flood_vlans);
2615 bitmap_free(flood_vlans);
2618 static struct mirror *
2619 mirror_create(struct bridge *br, const struct ovsrec_mirror *cfg)
2623 m = xzalloc(sizeof *m);
2624 m->uuid = cfg->header_.uuid;
2625 hmap_insert(&br->mirrors, &m->hmap_node, uuid_hash(&m->uuid));
2627 m->name = xstrdup(cfg->name);
2633 mirror_destroy(struct mirror *m)
2636 struct bridge *br = m->bridge;
2639 ofproto_mirror_unregister(br->ofproto, m);
2642 hmap_remove(&br->mirrors, &m->hmap_node);
2649 mirror_collect_ports(struct mirror *m,
2650 struct ovsrec_port **in_ports, int n_in_ports,
2651 void ***out_portsp, size_t *n_out_portsp)
2653 void **out_ports = xmalloc(n_in_ports * sizeof *out_ports);
2654 size_t n_out_ports = 0;
2657 for (i = 0; i < n_in_ports; i++) {
2658 const char *name = in_ports[i]->name;
2659 struct port *port = port_lookup(m->bridge, name);
2661 out_ports[n_out_ports++] = port;
2663 VLOG_WARN("bridge %s: mirror %s cannot match on nonexistent "
2664 "port %s", m->bridge->name, m->name, name);
2667 *out_portsp = out_ports;
2668 *n_out_portsp = n_out_ports;
2672 mirror_configure(struct mirror *m, const struct ovsrec_mirror *cfg)
2674 struct ofproto_mirror_settings s;
2675 struct port *out_port;
2679 if (strcmp(cfg->name, m->name)) {
2681 m->name = xstrdup(cfg->name);
2685 /* Get output port or VLAN. */
2686 if (cfg->output_port) {
2687 s.out_bundle = port_lookup(m->bridge, cfg->output_port->name);
2689 VLOG_ERR("bridge %s: mirror %s outputs to port not on bridge",
2690 m->bridge->name, m->name);
2693 s.out_vlan = UINT16_MAX;
2695 if (cfg->output_vlan) {
2696 VLOG_ERR("bridge %s: mirror %s specifies both output port and "
2697 "output vlan; ignoring output vlan",
2698 m->bridge->name, m->name);
2700 } else if (cfg->output_vlan) {
2701 /* The database should prevent invalid VLAN values. */
2702 s.out_bundle = NULL;
2703 s.out_vlan = *cfg->output_vlan;
2705 VLOG_ERR("bridge %s: mirror %s does not specify output; ignoring",
2706 m->bridge->name, m->name);
2710 /* Get port selection. */
2711 if (cfg->select_all) {
2712 size_t n_ports = hmap_count(&m->bridge->ports);
2713 void **ports = xmalloc(n_ports * sizeof *ports);
2717 HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) {
2727 /* Get ports, dropping ports that don't exist.
2728 * The IDL ensures that there are no duplicates. */
2729 mirror_collect_ports(m, cfg->select_src_port, cfg->n_select_src_port,
2730 &s.srcs, &s.n_srcs);
2731 mirror_collect_ports(m, cfg->select_dst_port, cfg->n_select_dst_port,
2732 &s.dsts, &s.n_dsts);
2736 /* Get VLAN selection. */
2737 s.src_vlans = vlan_bitmap_from_array(cfg->select_vlan, cfg->n_select_vlan);
2740 ofproto_mirror_register(m->bridge->ofproto, m, &s);
2743 if (s.srcs != s.dsts) {