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_flow_eviction_threshold(struct bridge *);
152 static void bridge_configure_netflow(struct bridge *);
153 static void bridge_configure_forward_bpdu(struct bridge *);
154 static void bridge_configure_sflow(struct bridge *, int *sflow_bridge_number);
155 static void bridge_configure_stp(struct bridge *);
156 static void bridge_configure_remotes(struct bridge *,
157 const struct sockaddr_in *managers,
159 static void bridge_pick_local_hw_addr(struct bridge *,
160 uint8_t ea[ETH_ADDR_LEN],
161 struct iface **hw_addr_iface);
162 static uint64_t bridge_pick_datapath_id(struct bridge *,
163 const uint8_t bridge_ea[ETH_ADDR_LEN],
164 struct iface *hw_addr_iface);
165 static const char *bridge_get_other_config(const struct ovsrec_bridge *,
167 static const char *get_port_other_config(const struct ovsrec_port *,
169 const char *default_value);
170 static uint64_t dpid_from_hash(const void *, size_t nbytes);
171 static bool bridge_has_bond_fake_iface(const struct bridge *,
173 static bool port_is_bond_fake_iface(const struct port *);
175 static unixctl_cb_func qos_unixctl_show;
177 static struct port *port_create(struct bridge *, const struct ovsrec_port *);
178 static void port_add_ifaces(struct port *);
179 static void port_del_ifaces(struct port *);
180 static void port_destroy(struct port *);
181 static struct port *port_lookup(const struct bridge *, const char *name);
182 static void port_configure(struct port *);
183 static struct lacp_settings *port_configure_lacp(struct port *,
184 struct lacp_settings *);
185 static void port_configure_bond(struct port *, struct bond_settings *,
186 uint32_t *bond_stable_ids);
187 static bool port_is_synthetic(const struct port *);
189 static void bridge_configure_mirrors(struct bridge *);
190 static struct mirror *mirror_create(struct bridge *,
191 const struct ovsrec_mirror *);
192 static void mirror_destroy(struct mirror *);
193 static bool mirror_configure(struct mirror *, const struct ovsrec_mirror *);
195 static void iface_configure_lacp(struct iface *, struct lacp_slave_settings *);
196 static struct iface *iface_create(struct port *port,
197 const struct ovsrec_interface *if_cfg);
198 static void iface_destroy(struct iface *);
199 static struct iface *iface_lookup(const struct bridge *, const char *name);
200 static struct iface *iface_find(const char *name);
201 static struct iface *iface_from_ofp_port(const struct bridge *,
203 static void iface_set_mac(struct iface *);
204 static void iface_set_ofport(const struct ovsrec_interface *, int64_t ofport);
205 static void iface_clear_db_record(const struct ovsrec_interface *if_cfg);
206 static void iface_configure_qos(struct iface *, const struct ovsrec_qos *);
207 static void iface_configure_cfm(struct iface *);
208 static void iface_refresh_cfm_stats(struct iface *);
209 static void iface_refresh_stats(struct iface *);
210 static void iface_refresh_status(struct iface *);
211 static bool iface_is_synthetic(const struct iface *);
213 static void shash_from_ovs_idl_map(char **keys, char **values, size_t n,
215 static void shash_to_ovs_idl_map(struct shash *,
216 char ***keys, char ***values, size_t *n);
218 /* Public functions. */
220 /* Initializes the bridge module, configuring it to obtain its configuration
221 * from an OVSDB server accessed over 'remote', which should be a string in a
222 * form acceptable to ovsdb_idl_create(). */
224 bridge_init(const char *remote)
226 /* Create connection to database. */
227 idl = ovsdb_idl_create(remote, &ovsrec_idl_class, true);
228 ovsdb_idl_set_lock(idl, "ovs_vswitchd");
230 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_cur_cfg);
231 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_statistics);
232 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_external_ids);
233 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_ovs_version);
234 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_db_version);
235 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_type);
236 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_version);
238 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_datapath_id);
239 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_status);
240 ovsdb_idl_omit(idl, &ovsrec_bridge_col_external_ids);
242 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_status);
243 ovsdb_idl_omit(idl, &ovsrec_port_col_external_ids);
244 ovsdb_idl_omit(idl, &ovsrec_port_col_fake_bridge);
246 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_admin_state);
247 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_duplex);
248 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_speed);
249 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_state);
250 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_resets);
251 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mtu);
252 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ofport);
253 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_statistics);
254 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_status);
255 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault);
256 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_remote_mpids);
257 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_lacp_current);
258 ovsdb_idl_omit(idl, &ovsrec_interface_col_external_ids);
260 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_is_connected);
261 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_role);
262 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_status);
263 ovsdb_idl_omit(idl, &ovsrec_controller_col_external_ids);
265 ovsdb_idl_omit(idl, &ovsrec_qos_col_external_ids);
267 ovsdb_idl_omit(idl, &ovsrec_queue_col_external_ids);
269 ovsdb_idl_omit(idl, &ovsrec_mirror_col_external_ids);
271 ovsdb_idl_omit(idl, &ovsrec_netflow_col_external_ids);
273 ovsdb_idl_omit(idl, &ovsrec_sflow_col_external_ids);
275 ovsdb_idl_omit(idl, &ovsrec_manager_col_external_ids);
276 ovsdb_idl_omit(idl, &ovsrec_manager_col_inactivity_probe);
277 ovsdb_idl_omit(idl, &ovsrec_manager_col_is_connected);
278 ovsdb_idl_omit(idl, &ovsrec_manager_col_max_backoff);
279 ovsdb_idl_omit(idl, &ovsrec_manager_col_status);
281 ovsdb_idl_omit(idl, &ovsrec_ssl_col_external_ids);
283 /* Register unixctl commands. */
284 unixctl_command_register("qos/show", "interface", qos_unixctl_show, NULL);
285 unixctl_command_register("bridge/dump-flows", "bridge",
286 bridge_unixctl_dump_flows, NULL);
287 unixctl_command_register("bridge/reconnect", "[bridge]",
288 bridge_unixctl_reconnect, NULL);
297 struct bridge *br, *next_br;
299 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
302 ovsdb_idl_destroy(idl);
305 /* Looks at the list of managers in 'ovs_cfg' and extracts their remote IP
306 * addresses and ports into '*managersp' and '*n_managersp'. The caller is
307 * responsible for freeing '*managersp' (with free()).
309 * You may be asking yourself "why does ovs-vswitchd care?", because
310 * ovsdb-server is responsible for connecting to the managers, and ovs-vswitchd
311 * should not be and in fact is not directly involved in that. But
312 * ovs-vswitchd needs to make sure that ovsdb-server can reach the managers, so
313 * it has to tell in-band control where the managers are to enable that.
314 * (Thus, only managers connected in-band are collected.)
317 collect_in_band_managers(const struct ovsrec_open_vswitch *ovs_cfg,
318 struct sockaddr_in **managersp, size_t *n_managersp)
320 struct sockaddr_in *managers = NULL;
321 size_t n_managers = 0;
325 /* Collect all of the potential targets from the "targets" columns of the
326 * rows pointed to by "manager_options", excluding any that are
329 for (i = 0; i < ovs_cfg->n_manager_options; i++) {
330 struct ovsrec_manager *m = ovs_cfg->manager_options[i];
332 if (m->connection_mode && !strcmp(m->connection_mode, "out-of-band")) {
333 sset_find_and_delete(&targets, m->target);
335 sset_add(&targets, m->target);
339 /* Now extract the targets' IP addresses. */
340 if (!sset_is_empty(&targets)) {
343 managers = xmalloc(sset_count(&targets) * sizeof *managers);
344 SSET_FOR_EACH (target, &targets) {
345 struct sockaddr_in *sin = &managers[n_managers];
347 if ((!strncmp(target, "tcp:", 4)
348 && inet_parse_active(target + 4, JSONRPC_TCP_PORT, sin)) ||
349 (!strncmp(target, "ssl:", 4)
350 && inet_parse_active(target + 4, JSONRPC_SSL_PORT, sin))) {
355 sset_destroy(&targets);
357 *managersp = managers;
358 *n_managersp = n_managers;
362 bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
364 struct sockaddr_in *managers;
365 struct bridge *br, *next;
366 int sflow_bridge_number;
369 COVERAGE_INC(bridge_reconfigure);
371 /* Create and destroy "struct bridge"s, "struct port"s, and "struct
372 * iface"s according to 'ovs_cfg', with only very minimal configuration
375 * This is purely an update to bridge data structures. Nothing is pushed
376 * down to ofproto or lower layers. */
377 add_del_bridges(ovs_cfg);
378 HMAP_FOR_EACH (br, node, &all_bridges) {
379 bridge_add_del_ports(br);
382 /* Delete all datapaths and datapath ports that are no longer configured.
384 * The kernel will reject any attempt to add a given port to a datapath if
385 * that port already belongs to a different datapath, so we must do all
386 * port deletions before any port additions. A datapath always has a
387 * "local port" so we must delete not-configured datapaths too. */
388 bridge_del_ofprotos();
389 HMAP_FOR_EACH (br, node, &all_bridges) {
391 bridge_del_ofproto_ports(br);
395 /* Create datapaths and datapath ports that are missing.
397 * After this is done, we have our final set of bridges, ports, and
398 * interfaces. Every "struct bridge" has an ofproto, every "struct port"
399 * has at least one iface, every "struct iface" has a valid ofp_port and
401 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
402 if (!br->ofproto && !bridge_add_ofprotos(br)) {
406 HMAP_FOR_EACH (br, node, &all_bridges) {
407 bridge_refresh_ofp_port(br);
408 bridge_add_ofproto_ports(br);
411 /* Complete the configuration. */
412 sflow_bridge_number = 0;
413 collect_in_band_managers(ovs_cfg, &managers, &n_managers);
414 HMAP_FOR_EACH (br, node, &all_bridges) {
417 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
420 port_configure(port);
422 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
423 iface_configure_cfm(iface);
424 iface_configure_qos(iface, port->cfg->qos);
425 iface_set_mac(iface);
428 bridge_configure_mirrors(br);
429 bridge_configure_datapath_id(br);
430 bridge_configure_flow_eviction_threshold(br);
431 bridge_configure_forward_bpdu(br);
432 bridge_configure_remotes(br, managers, n_managers);
433 bridge_configure_netflow(br);
434 bridge_configure_sflow(br, &sflow_bridge_number);
435 bridge_configure_stp(br);
439 /* ovs-vswitchd has completed initialization, so allow the process that
440 * forked us to exit successfully. */
441 daemonize_complete();
444 /* Iterate over all ofprotos and delete any of them that do not have a
445 * configured bridge or that are the wrong type. */
447 bridge_del_ofprotos(void)
455 ofproto_enumerate_types(&types);
456 SSET_FOR_EACH (type, &types) {
459 ofproto_enumerate_names(type, &names);
460 SSET_FOR_EACH (name, &names) {
461 struct bridge *br = bridge_lookup(name);
462 if (!br || strcmp(type, br->type)) {
463 ofproto_delete(name, type);
467 sset_destroy(&names);
468 sset_destroy(&types);
472 bridge_add_ofprotos(struct bridge *br)
474 int error = ofproto_create(br->name, br->type, &br->ofproto);
476 VLOG_ERR("failed to create bridge %s: %s", br->name, strerror(error));
483 port_configure(struct port *port)
485 const struct ovsrec_port *cfg = port->cfg;
486 struct bond_settings bond_settings;
487 struct lacp_settings lacp_settings;
488 struct ofproto_bundle_settings s;
496 s.slaves = xmalloc(list_size(&port->ifaces) * sizeof *s.slaves);
497 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
498 s.slaves[s.n_slaves++] = iface->ofp_port;
504 if (list_is_short(&port->ifaces)) {
505 if (*cfg->tag >= 0 && *cfg->tag <= 4095) {
509 /* It's possible that bonded, VLAN-tagged ports make sense. Maybe
510 * they even work as-is. But they have not been tested. */
511 VLOG_WARN("port %s: VLAN tags not supported on bonded ports",
516 /* Get VLAN trunks. */
519 s.trunks = vlan_bitmap_from_array(cfg->trunks, cfg->n_trunks);
523 if (cfg->vlan_mode) {
524 if (!strcmp(cfg->vlan_mode, "access")) {
525 s.vlan_mode = PORT_VLAN_ACCESS;
526 } else if (!strcmp(cfg->vlan_mode, "trunk")) {
527 s.vlan_mode = PORT_VLAN_TRUNK;
528 } else if (!strcmp(cfg->vlan_mode, "native-tagged")) {
529 s.vlan_mode = PORT_VLAN_NATIVE_TAGGED;
530 } else if (!strcmp(cfg->vlan_mode, "native-untagged")) {
531 s.vlan_mode = PORT_VLAN_NATIVE_UNTAGGED;
533 /* This "can't happen" because ovsdb-server should prevent it. */
534 VLOG_ERR("unknown VLAN mode %s", cfg->vlan_mode);
535 s.vlan_mode = PORT_VLAN_TRUNK;
539 s.vlan_mode = PORT_VLAN_ACCESS;
541 VLOG_ERR("port %s: ignoring trunks in favor of implicit vlan",
545 s.vlan_mode = PORT_VLAN_TRUNK;
549 /* Get LACP settings. */
550 s.lacp = port_configure_lacp(port, &lacp_settings);
554 s.lacp_slaves = xmalloc(s.n_slaves * sizeof *s.lacp_slaves);
555 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
556 iface_configure_lacp(iface, &s.lacp_slaves[i++]);
559 s.lacp_slaves = NULL;
562 /* Get bond settings. */
563 if (s.n_slaves > 1) {
564 s.bond = &bond_settings;
565 s.bond_stable_ids = xmalloc(s.n_slaves * sizeof *s.bond_stable_ids);
566 port_configure_bond(port, &bond_settings, s.bond_stable_ids);
569 s.bond_stable_ids = NULL;
571 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
572 netdev_set_miimon_interval(iface->netdev, 0);
577 ofproto_bundle_register(port->bridge->ofproto, port, &s);
583 free(s.bond_stable_ids);
586 /* Pick local port hardware address and datapath ID for 'br'. */
588 bridge_configure_datapath_id(struct bridge *br)
590 uint8_t ea[ETH_ADDR_LEN];
592 struct iface *local_iface;
593 struct iface *hw_addr_iface;
596 bridge_pick_local_hw_addr(br, ea, &hw_addr_iface);
597 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
599 int error = netdev_set_etheraddr(local_iface->netdev, ea);
601 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
602 VLOG_ERR_RL(&rl, "bridge %s: failed to set bridge "
603 "Ethernet address: %s",
604 br->name, strerror(error));
607 memcpy(br->ea, ea, ETH_ADDR_LEN);
609 dpid = bridge_pick_datapath_id(br, ea, hw_addr_iface);
610 ofproto_set_datapath_id(br->ofproto, dpid);
612 dpid_string = xasprintf("%016"PRIx64, dpid);
613 ovsrec_bridge_set_datapath_id(br->cfg, dpid_string);
617 /* Set NetFlow configuration on 'br'. */
619 bridge_configure_netflow(struct bridge *br)
621 struct ovsrec_netflow *cfg = br->cfg->netflow;
622 struct netflow_options opts;
625 ofproto_set_netflow(br->ofproto, NULL);
629 memset(&opts, 0, sizeof opts);
631 /* Get default NetFlow configuration from datapath.
632 * Apply overrides from 'cfg'. */
633 ofproto_get_netflow_ids(br->ofproto, &opts.engine_type, &opts.engine_id);
634 if (cfg->engine_type) {
635 opts.engine_type = *cfg->engine_type;
637 if (cfg->engine_id) {
638 opts.engine_id = *cfg->engine_id;
641 /* Configure active timeout interval. */
642 opts.active_timeout = cfg->active_timeout;
643 if (!opts.active_timeout) {
644 opts.active_timeout = -1;
645 } else if (opts.active_timeout < 0) {
646 VLOG_WARN("bridge %s: active timeout interval set to negative "
647 "value, using default instead (%d seconds)", br->name,
648 NF_ACTIVE_TIMEOUT_DEFAULT);
649 opts.active_timeout = -1;
652 /* Add engine ID to interface number to disambiguate bridgs? */
653 opts.add_id_to_iface = cfg->add_id_to_interface;
654 if (opts.add_id_to_iface) {
655 if (opts.engine_id > 0x7f) {
656 VLOG_WARN("bridge %s: NetFlow port mangling may conflict with "
657 "another vswitch, choose an engine id less than 128",
660 if (hmap_count(&br->ports) > 508) {
661 VLOG_WARN("bridge %s: NetFlow port mangling will conflict with "
662 "another port when more than 508 ports are used",
668 sset_init(&opts.collectors);
669 sset_add_array(&opts.collectors, cfg->targets, cfg->n_targets);
672 if (ofproto_set_netflow(br->ofproto, &opts)) {
673 VLOG_ERR("bridge %s: problem setting netflow collectors", br->name);
675 sset_destroy(&opts.collectors);
678 /* Set sFlow configuration on 'br'. */
680 bridge_configure_sflow(struct bridge *br, int *sflow_bridge_number)
682 const struct ovsrec_sflow *cfg = br->cfg->sflow;
683 struct ovsrec_controller **controllers;
684 struct ofproto_sflow_options oso;
685 size_t n_controllers;
689 ofproto_set_sflow(br->ofproto, NULL);
693 memset(&oso, 0, sizeof oso);
695 sset_init(&oso.targets);
696 sset_add_array(&oso.targets, cfg->targets, cfg->n_targets);
698 oso.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
700 oso.sampling_rate = *cfg->sampling;
703 oso.polling_interval = SFL_DEFAULT_POLLING_INTERVAL;
705 oso.polling_interval = *cfg->polling;
708 oso.header_len = SFL_DEFAULT_HEADER_SIZE;
710 oso.header_len = *cfg->header;
713 oso.sub_id = (*sflow_bridge_number)++;
714 oso.agent_device = cfg->agent;
716 oso.control_ip = NULL;
717 n_controllers = bridge_get_controllers(br, &controllers);
718 for (i = 0; i < n_controllers; i++) {
719 if (controllers[i]->local_ip) {
720 oso.control_ip = controllers[i]->local_ip;
724 ofproto_set_sflow(br->ofproto, &oso);
726 sset_destroy(&oso.targets);
730 port_configure_stp(const struct ofproto *ofproto, struct port *port,
731 struct ofproto_port_stp_settings *port_s,
732 int *port_num_counter, unsigned long *port_num_bitmap)
734 const char *config_str;
737 config_str = get_port_other_config(port->cfg, "stp-enable", NULL);
738 if (config_str && !strcmp(config_str, "false")) {
739 port_s->enable = false;
742 port_s->enable = true;
745 /* STP over bonds is not supported. */
746 if (!list_is_singleton(&port->ifaces)) {
747 VLOG_ERR("port %s: cannot enable STP on bonds, disabling",
749 port_s->enable = false;
753 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
755 /* Internal ports shouldn't participate in spanning tree, so
757 if (!strcmp(iface->type, "internal")) {
758 VLOG_DBG("port %s: disable STP on internal ports", port->name);
759 port_s->enable = false;
763 /* STP on mirror output ports is not supported. */
764 if (ofproto_is_mirror_output_bundle(ofproto, port)) {
765 VLOG_DBG("port %s: disable STP on mirror ports", port->name);
766 port_s->enable = false;
770 config_str = get_port_other_config(port->cfg, "stp-port-num", NULL);
772 unsigned long int port_num = strtoul(config_str, NULL, 0);
773 int port_idx = port_num - 1;
775 if (port_num < 1 || port_num > STP_MAX_PORTS) {
776 VLOG_ERR("port %s: invalid stp-port-num", port->name);
777 port_s->enable = false;
781 if (bitmap_is_set(port_num_bitmap, port_idx)) {
782 VLOG_ERR("port %s: duplicate stp-port-num %lu, disabling",
783 port->name, port_num);
784 port_s->enable = false;
787 bitmap_set1(port_num_bitmap, port_idx);
788 port_s->port_num = port_idx;
790 if (*port_num_counter > STP_MAX_PORTS) {
791 VLOG_ERR("port %s: too many STP ports, disabling", port->name);
792 port_s->enable = false;
796 port_s->port_num = (*port_num_counter)++;
799 config_str = get_port_other_config(port->cfg, "stp-path-cost", NULL);
801 port_s->path_cost = strtoul(config_str, NULL, 10);
805 if (netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL)) {
806 /* Couldn't get speed, so assume 100Mb/s. */
807 port_s->path_cost = 19;
811 mbps = netdev_features_to_bps(current) / 1000000;
812 port_s->path_cost = stp_convert_speed_to_cost(mbps);
816 config_str = get_port_other_config(port->cfg, "stp-port-priority", NULL);
818 port_s->priority = strtoul(config_str, NULL, 0);
820 port_s->priority = STP_DEFAULT_PORT_PRIORITY;
824 /* Set spanning tree configuration on 'br'. */
826 bridge_configure_stp(struct bridge *br)
828 if (!br->cfg->stp_enable) {
829 ofproto_set_stp(br->ofproto, NULL);
831 struct ofproto_stp_settings br_s;
832 const char *config_str;
834 int port_num_counter;
835 unsigned long *port_num_bitmap;
837 config_str = bridge_get_other_config(br->cfg, "stp-system-id");
839 uint8_t ea[ETH_ADDR_LEN];
841 if (eth_addr_from_string(config_str, ea)) {
842 br_s.system_id = eth_addr_to_uint64(ea);
844 br_s.system_id = eth_addr_to_uint64(br->ea);
845 VLOG_ERR("bridge %s: invalid stp-system-id, defaulting "
846 "to "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(br->ea));
849 br_s.system_id = eth_addr_to_uint64(br->ea);
852 config_str = bridge_get_other_config(br->cfg, "stp-priority");
854 br_s.priority = strtoul(config_str, NULL, 0);
856 br_s.priority = STP_DEFAULT_BRIDGE_PRIORITY;
859 config_str = bridge_get_other_config(br->cfg, "stp-hello-time");
861 br_s.hello_time = strtoul(config_str, NULL, 10) * 1000;
863 br_s.hello_time = STP_DEFAULT_HELLO_TIME;
866 config_str = bridge_get_other_config(br->cfg, "stp-max-age");
868 br_s.max_age = strtoul(config_str, NULL, 10) * 1000;
870 br_s.max_age = STP_DEFAULT_MAX_AGE;
873 config_str = bridge_get_other_config(br->cfg, "stp-forward-delay");
875 br_s.fwd_delay = strtoul(config_str, NULL, 10) * 1000;
877 br_s.fwd_delay = STP_DEFAULT_FWD_DELAY;
880 /* Configure STP on the bridge. */
881 if (ofproto_set_stp(br->ofproto, &br_s)) {
882 VLOG_ERR("bridge %s: could not enable STP", br->name);
886 /* Users must either set the port number with the "stp-port-num"
887 * configuration on all ports or none. If manual configuration
888 * is not done, then we allocate them sequentially. */
889 port_num_counter = 0;
890 port_num_bitmap = bitmap_allocate(STP_MAX_PORTS);
891 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
892 struct ofproto_port_stp_settings port_s;
895 port_configure_stp(br->ofproto, port, &port_s,
896 &port_num_counter, port_num_bitmap);
898 /* As bonds are not supported, just apply configuration to
900 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
901 if (ofproto_port_set_stp(br->ofproto, iface->ofp_port,
903 VLOG_ERR("port %s: could not enable STP", port->name);
909 if (bitmap_scan(port_num_bitmap, 0, STP_MAX_PORTS) != STP_MAX_PORTS
910 && port_num_counter) {
911 VLOG_ERR("bridge %s: must manually configure all STP port "
912 "IDs or none, disabling", br->name);
913 ofproto_set_stp(br->ofproto, NULL);
915 bitmap_free(port_num_bitmap);
920 bridge_has_bond_fake_iface(const struct bridge *br, const char *name)
922 const struct port *port = port_lookup(br, name);
923 return port && port_is_bond_fake_iface(port);
927 port_is_bond_fake_iface(const struct port *port)
929 return port->cfg->bond_fake_iface && !list_is_short(&port->ifaces);
933 add_del_bridges(const struct ovsrec_open_vswitch *cfg)
935 struct bridge *br, *next;
939 /* Collect new bridges' names and types. */
941 for (i = 0; i < cfg->n_bridges; i++) {
942 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
943 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
945 if (strchr(br_cfg->name, '/')) {
946 /* Prevent remote ovsdb-server users from accessing arbitrary
947 * directories, e.g. consider a bridge named "../../../etc/". */
948 VLOG_WARN_RL(&rl, "ignoring bridge with invalid name \"%s\"",
950 } else if (!shash_add_once(&new_br, br_cfg->name, br_cfg)) {
951 VLOG_WARN_RL(&rl, "bridge %s specified twice", br_cfg->name);
955 /* Get rid of deleted bridges or those whose types have changed.
956 * Update 'cfg' of bridges that still exist. */
957 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
958 br->cfg = shash_find_data(&new_br, br->name);
959 if (!br->cfg || strcmp(br->type, ofproto_normalize_type(
960 br->cfg->datapath_type))) {
965 /* Add new bridges. */
966 for (i = 0; i < cfg->n_bridges; i++) {
967 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
968 struct bridge *br = bridge_lookup(br_cfg->name);
970 bridge_create(br_cfg);
974 shash_destroy(&new_br);
977 /* Delete each ofproto port on 'br' that doesn't have a corresponding "struct
980 * The kernel will reject any attempt to add a given port to a datapath if that
981 * port already belongs to a different datapath, so we must do all port
982 * deletions before any port additions. */
984 bridge_del_ofproto_ports(struct bridge *br)
986 struct ofproto_port_dump dump;
987 struct ofproto_port ofproto_port;
989 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
990 const char *name = ofproto_port.name;
995 /* Ignore the local port. We can't change it anyhow. */
996 if (!strcmp(name, br->name)) {
1000 /* Get the type that 'ofproto_port' should have (ordinarily the
1001 * type of its corresponding iface) or NULL if it should be
1003 iface = iface_lookup(br, name);
1004 type = (iface ? iface->type
1005 : bridge_has_bond_fake_iface(br, name) ? "internal"
1008 /* If it's the wrong type then delete the ofproto port. */
1010 && !strcmp(ofproto_port.type, type)
1011 && (!iface || !iface->netdev
1012 || !strcmp(netdev_get_type(iface->netdev), type))) {
1015 error = ofproto_port_del(br->ofproto, ofproto_port.ofp_port);
1017 VLOG_WARN("bridge %s: failed to remove %s interface (%s)",
1018 br->name, name, strerror(error));
1021 netdev_close(iface->netdev);
1022 iface->netdev = NULL;
1028 iface_set_ofp_port(struct iface *iface, int ofp_port)
1030 struct bridge *br = iface->port->bridge;
1032 assert(iface->ofp_port < 0 && ofp_port >= 0);
1033 iface->ofp_port = ofp_port;
1034 hmap_insert(&br->ifaces, &iface->ofp_port_node, hash_int(ofp_port, 0));
1035 iface_set_ofport(iface->cfg, ofp_port);
1039 bridge_refresh_ofp_port(struct bridge *br)
1041 struct ofproto_port_dump dump;
1042 struct ofproto_port ofproto_port;
1045 /* Clear all the "ofp_port"es. */
1046 hmap_clear(&br->ifaces);
1047 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1048 struct iface *iface;
1050 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1051 iface->ofp_port = -1;
1055 /* Obtain the correct "ofp_port"s from ofproto. */
1056 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
1057 struct iface *iface = iface_lookup(br, ofproto_port.name);
1059 if (iface->ofp_port >= 0) {
1060 VLOG_WARN("bridge %s: interface %s reported twice",
1061 br->name, ofproto_port.name);
1062 } else if (iface_from_ofp_port(br, ofproto_port.ofp_port)) {
1063 VLOG_WARN("bridge %s: interface %"PRIu16" reported twice",
1064 br->name, ofproto_port.ofp_port);
1066 iface_set_ofp_port(iface, ofproto_port.ofp_port);
1072 /* Add an ofproto port for any "struct iface" that doesn't have one.
1073 * Delete any "struct iface" for which this fails.
1074 * Delete any "struct port" that thereby ends up with no ifaces. */
1076 bridge_add_ofproto_ports(struct bridge *br)
1078 struct port *port, *next_port;
1080 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
1081 struct iface *iface, *next_iface;
1082 struct ofproto_port ofproto_port;
1084 LIST_FOR_EACH_SAFE (iface, next_iface, port_elem, &port->ifaces) {
1087 /* Open the netdev. */
1088 if (!iface->netdev) {
1089 error = netdev_open(iface->name, iface->type, &iface->netdev);
1091 VLOG_WARN("could not open network device %s (%s)",
1092 iface->name, strerror(error));
1098 /* Configure the netdev. */
1099 if (iface->netdev) {
1103 shash_from_ovs_idl_map(iface->cfg->key_options,
1104 iface->cfg->value_options,
1105 iface->cfg->n_options, &args);
1106 error = netdev_set_config(iface->netdev, &args);
1107 shash_destroy(&args);
1110 VLOG_WARN("could not configure network device %s (%s)",
1111 iface->name, strerror(error));
1112 netdev_close(iface->netdev);
1113 iface->netdev = NULL;
1117 /* Add the port, if necessary. */
1118 if (iface->netdev && iface->ofp_port < 0) {
1122 error = ofproto_port_add(br->ofproto, iface->netdev,
1125 iface_set_ofp_port(iface, ofp_port);
1127 netdev_close(iface->netdev);
1128 iface->netdev = NULL;
1132 /* Populate stats columns in new Interface rows. */
1133 if (iface->netdev && !iface->cfg->mtu) {
1134 iface_refresh_stats(iface);
1135 iface_refresh_status(iface);
1138 /* Delete the iface if we failed. */
1139 if (iface->netdev && iface->ofp_port >= 0) {
1140 VLOG_DBG("bridge %s: interface %s is on port %d",
1141 br->name, iface->name, iface->ofp_port);
1143 if (iface->netdev) {
1144 VLOG_ERR("bridge %s: missing %s interface, dropping",
1145 br->name, iface->name);
1147 /* We already reported a related error, don't bother
1148 * duplicating it. */
1150 iface_clear_db_record(iface->cfg);
1151 iface_destroy(iface);
1154 if (list_is_empty(&port->ifaces)) {
1155 VLOG_WARN("%s port has no interfaces, dropping", port->name);
1160 /* Add bond fake iface if necessary. */
1161 if (port_is_bond_fake_iface(port)) {
1162 if (ofproto_port_query_by_name(br->ofproto, port->name,
1164 struct netdev *netdev;
1167 error = netdev_open(port->name, "internal", &netdev);
1169 ofproto_port_add(br->ofproto, netdev, NULL);
1170 netdev_close(netdev);
1172 VLOG_WARN("could not open network device %s (%s)",
1173 port->name, strerror(error));
1176 /* Already exists, nothing to do. */
1177 ofproto_port_destroy(&ofproto_port);
1184 get_ovsrec_key_value(const struct ovsdb_idl_row *row,
1185 const struct ovsdb_idl_column *column,
1188 const struct ovsdb_datum *datum;
1189 union ovsdb_atom atom;
1192 datum = ovsdb_idl_get(row, column, OVSDB_TYPE_STRING, OVSDB_TYPE_STRING);
1193 atom.string = (char *) key;
1194 idx = ovsdb_datum_find_key(datum, &atom, OVSDB_TYPE_STRING);
1195 return idx == UINT_MAX ? NULL : datum->values[idx].string;
1199 bridge_get_other_config(const struct ovsrec_bridge *br_cfg, const char *key)
1201 return get_ovsrec_key_value(&br_cfg->header_,
1202 &ovsrec_bridge_col_other_config, key);
1205 /* Set Flow eviction threshold */
1207 bridge_configure_flow_eviction_threshold(struct bridge *br)
1209 const char *threshold_str;
1212 threshold_str = bridge_get_other_config(br->cfg, "flow-eviction-threshold");
1213 if (threshold_str) {
1214 threshold = strtoul(threshold_str, NULL, 10);
1216 threshold = OFPROTO_FLOW_EVICTON_THRESHOLD_DEFAULT;
1218 ofproto_set_flow_eviction_threshold(br->ofproto, threshold);
1221 /* Set forward BPDU option. */
1223 bridge_configure_forward_bpdu(struct bridge *br)
1225 const char *forward_bpdu_str;
1226 bool forward_bpdu = false;
1228 forward_bpdu_str = bridge_get_other_config(br->cfg, "forward-bpdu");
1229 if (forward_bpdu_str && !strcmp(forward_bpdu_str, "true")) {
1230 forward_bpdu = true;
1232 ofproto_set_forward_bpdu(br->ofproto, forward_bpdu);
1236 bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
1237 struct iface **hw_addr_iface)
1241 bool found_addr = false;
1244 *hw_addr_iface = NULL;
1246 /* Did the user request a particular MAC? */
1247 hwaddr = bridge_get_other_config(br->cfg, "hwaddr");
1248 if (hwaddr && eth_addr_from_string(hwaddr, ea)) {
1249 if (eth_addr_is_multicast(ea)) {
1250 VLOG_ERR("bridge %s: cannot set MAC address to multicast "
1251 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1252 } else if (eth_addr_is_zero(ea)) {
1253 VLOG_ERR("bridge %s: cannot set MAC address to zero", br->name);
1259 /* Otherwise choose the minimum non-local MAC address among all of the
1261 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1262 uint8_t iface_ea[ETH_ADDR_LEN];
1263 struct iface *candidate;
1264 struct iface *iface;
1266 /* Mirror output ports don't participate. */
1267 if (ofproto_is_mirror_output_bundle(br->ofproto, port)) {
1271 /* Choose the MAC address to represent the port. */
1273 if (port->cfg->mac && eth_addr_from_string(port->cfg->mac, iface_ea)) {
1274 /* Find the interface with this Ethernet address (if any) so that
1275 * we can provide the correct devname to the caller. */
1276 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1277 uint8_t candidate_ea[ETH_ADDR_LEN];
1278 if (!netdev_get_etheraddr(candidate->netdev, candidate_ea)
1279 && eth_addr_equals(iface_ea, candidate_ea)) {
1284 /* Choose the interface whose MAC address will represent the port.
1285 * The Linux kernel bonding code always chooses the MAC address of
1286 * the first slave added to a bond, and the Fedora networking
1287 * scripts always add slaves to a bond in alphabetical order, so
1288 * for compatibility we choose the interface with the name that is
1289 * first in alphabetical order. */
1290 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1291 if (!iface || strcmp(candidate->name, iface->name) < 0) {
1296 /* The local port doesn't count (since we're trying to choose its
1297 * MAC address anyway). */
1298 if (iface->ofp_port == OFPP_LOCAL) {
1303 error = netdev_get_etheraddr(iface->netdev, iface_ea);
1309 /* Compare against our current choice. */
1310 if (!eth_addr_is_multicast(iface_ea) &&
1311 !eth_addr_is_local(iface_ea) &&
1312 !eth_addr_is_reserved(iface_ea) &&
1313 !eth_addr_is_zero(iface_ea) &&
1314 (!found_addr || eth_addr_compare_3way(iface_ea, ea) < 0))
1316 memcpy(ea, iface_ea, ETH_ADDR_LEN);
1317 *hw_addr_iface = iface;
1322 VLOG_DBG("bridge %s: using bridge Ethernet address "ETH_ADDR_FMT,
1323 br->name, ETH_ADDR_ARGS(ea));
1325 memcpy(ea, br->default_ea, ETH_ADDR_LEN);
1326 *hw_addr_iface = NULL;
1327 VLOG_WARN("bridge %s: using default bridge Ethernet "
1328 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1332 /* Choose and returns the datapath ID for bridge 'br' given that the bridge
1333 * Ethernet address is 'bridge_ea'. If 'bridge_ea' is the Ethernet address of
1334 * an interface on 'br', then that interface must be passed in as
1335 * 'hw_addr_iface'; if 'bridge_ea' was derived some other way, then
1336 * 'hw_addr_iface' must be passed in as a null pointer. */
1338 bridge_pick_datapath_id(struct bridge *br,
1339 const uint8_t bridge_ea[ETH_ADDR_LEN],
1340 struct iface *hw_addr_iface)
1343 * The procedure for choosing a bridge MAC address will, in the most
1344 * ordinary case, also choose a unique MAC that we can use as a datapath
1345 * ID. In some special cases, though, multiple bridges will end up with
1346 * the same MAC address. This is OK for the bridges, but it will confuse
1347 * the OpenFlow controller, because each datapath needs a unique datapath
1350 * Datapath IDs must be unique. It is also very desirable that they be
1351 * stable from one run to the next, so that policy set on a datapath
1354 const char *datapath_id;
1357 datapath_id = bridge_get_other_config(br->cfg, "datapath-id");
1358 if (datapath_id && dpid_from_string(datapath_id, &dpid)) {
1362 if (hw_addr_iface) {
1364 if (!netdev_get_vlan_vid(hw_addr_iface->netdev, &vlan)) {
1366 * A bridge whose MAC address is taken from a VLAN network device
1367 * (that is, a network device created with vconfig(8) or similar
1368 * tool) will have the same MAC address as a bridge on the VLAN
1369 * device's physical network device.
1371 * Handle this case by hashing the physical network device MAC
1372 * along with the VLAN identifier.
1374 uint8_t buf[ETH_ADDR_LEN + 2];
1375 memcpy(buf, bridge_ea, ETH_ADDR_LEN);
1376 buf[ETH_ADDR_LEN] = vlan >> 8;
1377 buf[ETH_ADDR_LEN + 1] = vlan;
1378 return dpid_from_hash(buf, sizeof buf);
1381 * Assume that this bridge's MAC address is unique, since it
1382 * doesn't fit any of the cases we handle specially.
1387 * A purely internal bridge, that is, one that has no non-virtual
1388 * network devices on it at all, is more difficult because it has no
1389 * natural unique identifier at all.
1391 * When the host is a XenServer, we handle this case by hashing the
1392 * host's UUID with the name of the bridge. Names of bridges are
1393 * persistent across XenServer reboots, although they can be reused if
1394 * an internal network is destroyed and then a new one is later
1395 * created, so this is fairly effective.
1397 * When the host is not a XenServer, we punt by using a random MAC
1398 * address on each run.
1400 const char *host_uuid = xenserver_get_host_uuid();
1402 char *combined = xasprintf("%s,%s", host_uuid, br->name);
1403 dpid = dpid_from_hash(combined, strlen(combined));
1409 return eth_addr_to_uint64(bridge_ea);
1413 dpid_from_hash(const void *data, size_t n)
1415 uint8_t hash[SHA1_DIGEST_SIZE];
1417 BUILD_ASSERT_DECL(sizeof hash >= ETH_ADDR_LEN);
1418 sha1_bytes(data, n, hash);
1419 eth_addr_mark_random(hash);
1420 return eth_addr_to_uint64(hash);
1424 iface_refresh_status(struct iface *iface)
1428 enum netdev_flags flags;
1435 if (iface_is_synthetic(iface)) {
1441 if (!netdev_get_status(iface->netdev, &sh)) {
1443 char **keys, **values;
1445 shash_to_ovs_idl_map(&sh, &keys, &values, &n);
1446 ovsrec_interface_set_status(iface->cfg, keys, values, n);
1451 ovsrec_interface_set_status(iface->cfg, NULL, NULL, 0);
1454 shash_destroy_free_data(&sh);
1456 error = netdev_get_flags(iface->netdev, &flags);
1458 ovsrec_interface_set_admin_state(iface->cfg, flags & NETDEV_UP ? "up" : "down");
1461 ovsrec_interface_set_admin_state(iface->cfg, NULL);
1464 error = netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
1466 ovsrec_interface_set_duplex(iface->cfg,
1467 netdev_features_is_full_duplex(current)
1469 /* warning: uint64_t -> int64_t conversion */
1470 bps = netdev_features_to_bps(current);
1471 ovsrec_interface_set_link_speed(iface->cfg, &bps, 1);
1474 ovsrec_interface_set_duplex(iface->cfg, NULL);
1475 ovsrec_interface_set_link_speed(iface->cfg, NULL, 0);
1478 error = netdev_get_mtu(iface->netdev, &mtu);
1481 ovsrec_interface_set_mtu(iface->cfg, &mtu_64, 1);
1484 ovsrec_interface_set_mtu(iface->cfg, NULL, 0);
1488 /* Writes 'iface''s CFM statistics to the database. */
1490 iface_refresh_cfm_stats(struct iface *iface)
1492 const struct ovsrec_interface *cfg = iface->cfg;
1494 const uint64_t *rmps;
1497 if (iface_is_synthetic(iface)) {
1501 fault = ofproto_port_get_cfm_fault(iface->port->bridge->ofproto,
1504 bool fault_bool = fault;
1505 ovsrec_interface_set_cfm_fault(cfg, &fault_bool, 1);
1507 ovsrec_interface_set_cfm_fault(cfg, NULL, 0);
1510 error = ofproto_port_get_cfm_remote_mpids(iface->port->bridge->ofproto,
1511 iface->ofp_port, &rmps, &n_rmps);
1513 ovsrec_interface_set_cfm_remote_mpids(cfg, (const int64_t *)rmps,
1516 ovsrec_interface_set_cfm_remote_mpids(cfg, NULL, 0);
1521 iface_refresh_stats(struct iface *iface)
1523 #define IFACE_STATS \
1524 IFACE_STAT(rx_packets, "rx_packets") \
1525 IFACE_STAT(tx_packets, "tx_packets") \
1526 IFACE_STAT(rx_bytes, "rx_bytes") \
1527 IFACE_STAT(tx_bytes, "tx_bytes") \
1528 IFACE_STAT(rx_dropped, "rx_dropped") \
1529 IFACE_STAT(tx_dropped, "tx_dropped") \
1530 IFACE_STAT(rx_errors, "rx_errors") \
1531 IFACE_STAT(tx_errors, "tx_errors") \
1532 IFACE_STAT(rx_frame_errors, "rx_frame_err") \
1533 IFACE_STAT(rx_over_errors, "rx_over_err") \
1534 IFACE_STAT(rx_crc_errors, "rx_crc_err") \
1535 IFACE_STAT(collisions, "collisions")
1537 #define IFACE_STAT(MEMBER, NAME) NAME,
1538 static char *keys[] = { IFACE_STATS };
1540 int64_t values[ARRAY_SIZE(keys)];
1543 struct netdev_stats stats;
1545 if (iface_is_synthetic(iface)) {
1549 /* Intentionally ignore return value, since errors will set 'stats' to
1550 * all-1s, and we will deal with that correctly below. */
1551 netdev_get_stats(iface->netdev, &stats);
1553 /* Copy statistics into values[] array. */
1555 #define IFACE_STAT(MEMBER, NAME) values[i++] = stats.MEMBER;
1558 assert(i == ARRAY_SIZE(keys));
1560 ovsrec_interface_set_statistics(iface->cfg, keys, values, ARRAY_SIZE(keys));
1565 br_refresh_stp_status(struct bridge *br)
1567 struct ofproto *ofproto = br->ofproto;
1568 struct ofproto_stp_status status;
1569 char *keys[3], *values[3];
1572 if (ofproto_get_stp_status(ofproto, &status)) {
1576 if (!status.enabled) {
1577 ovsrec_bridge_set_status(br->cfg, NULL, NULL, 0);
1581 keys[0] = "stp_bridge_id",
1582 values[0] = xasprintf(STP_ID_FMT, STP_ID_ARGS(status.bridge_id));
1583 keys[1] = "stp_designated_root",
1584 values[1] = xasprintf(STP_ID_FMT, STP_ID_ARGS(status.designated_root));
1585 keys[2] = "stp_root_path_cost",
1586 values[2] = xasprintf("%d", status.root_path_cost);
1588 ovsrec_bridge_set_status(br->cfg, keys, values, ARRAY_SIZE(values));
1590 for (i = 0; i < ARRAY_SIZE(values); i++) {
1596 port_refresh_stp_status(struct port *port)
1598 struct ofproto *ofproto = port->bridge->ofproto;
1599 struct iface *iface;
1600 struct ofproto_port_stp_status status;
1601 char *keys[4], *values[4];
1604 if (port_is_synthetic(port)) {
1608 /* STP doesn't currently support bonds. */
1609 if (!list_is_singleton(&port->ifaces)) {
1610 ovsrec_port_set_status(port->cfg, NULL, NULL, 0);
1614 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
1616 if (ofproto_port_get_stp_status(ofproto, iface->ofp_port, &status)) {
1620 if (!status.enabled) {
1621 ovsrec_port_set_status(port->cfg, NULL, NULL, 0);
1625 keys[0] = "stp_port_id";
1626 values[0] = xasprintf(STP_PORT_ID_FMT, status.port_id);
1627 keys[1] = "stp_state";
1628 values[1] = xstrdup(stp_state_name(status.state));
1629 keys[2] = "stp_sec_in_state";
1630 values[2] = xasprintf("%u", status.sec_in_state);
1631 keys[3] = "stp_role";
1632 values[3] = xstrdup(stp_role_name(status.role));
1634 ovsrec_port_set_status(port->cfg, keys, values, ARRAY_SIZE(values));
1636 for (i = 0; i < ARRAY_SIZE(values); i++) {
1642 enable_system_stats(const struct ovsrec_open_vswitch *cfg)
1646 /* Use other-config:enable-system-stats by preference. */
1647 enable = get_ovsrec_key_value(&cfg->header_,
1648 &ovsrec_open_vswitch_col_other_config,
1649 "enable-statistics");
1651 return !strcmp(enable, "true");
1654 /* Disable by default. */
1659 refresh_system_stats(const struct ovsrec_open_vswitch *cfg)
1661 struct ovsdb_datum datum;
1665 if (enable_system_stats(cfg)) {
1666 get_system_stats(&stats);
1669 ovsdb_datum_from_shash(&datum, &stats);
1670 ovsdb_idl_txn_write(&cfg->header_, &ovsrec_open_vswitch_col_statistics,
1674 static inline const char *
1675 nx_role_to_str(enum nx_role role)
1680 case NX_ROLE_MASTER:
1685 return "*** INVALID ROLE ***";
1690 refresh_controller_status(void)
1694 const struct ovsrec_controller *cfg;
1698 /* Accumulate status for controllers on all bridges. */
1699 HMAP_FOR_EACH (br, node, &all_bridges) {
1700 ofproto_get_ofproto_controller_info(br->ofproto, &info);
1703 /* Update each controller in the database with current status. */
1704 OVSREC_CONTROLLER_FOR_EACH(cfg, idl) {
1705 struct ofproto_controller_info *cinfo =
1706 shash_find_data(&info, cfg->target);
1709 ovsrec_controller_set_is_connected(cfg, cinfo->is_connected);
1710 ovsrec_controller_set_role(cfg, nx_role_to_str(cinfo->role));
1711 ovsrec_controller_set_status(cfg, (char **) cinfo->pairs.keys,
1712 (char **) cinfo->pairs.values,
1715 ovsrec_controller_set_is_connected(cfg, false);
1716 ovsrec_controller_set_role(cfg, NULL);
1717 ovsrec_controller_set_status(cfg, NULL, NULL, 0);
1721 ofproto_free_ofproto_controller_info(&info);
1725 refresh_cfm_stats(void)
1727 static struct ovsdb_idl_txn *txn = NULL;
1732 txn = ovsdb_idl_txn_create(idl);
1734 HMAP_FOR_EACH (br, node, &all_bridges) {
1735 struct iface *iface;
1737 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
1738 iface_refresh_cfm_stats(iface);
1743 if (ovsdb_idl_txn_commit(txn) != TXN_INCOMPLETE) {
1744 ovsdb_idl_txn_destroy(txn);
1752 const struct ovsrec_open_vswitch *cfg;
1754 bool datapath_destroyed;
1755 bool database_changed;
1758 /* (Re)configure if necessary. */
1759 database_changed = ovsdb_idl_run(idl);
1760 if (ovsdb_idl_is_lock_contended(idl)) {
1761 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
1762 struct bridge *br, *next_br;
1764 VLOG_ERR_RL(&rl, "another ovs-vswitchd process is running, "
1765 "disabling this process until it goes away");
1767 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
1771 } else if (!ovsdb_idl_has_lock(idl)) {
1774 cfg = ovsrec_open_vswitch_first(idl);
1776 /* Let each bridge do the work that it needs to do. */
1777 datapath_destroyed = false;
1778 HMAP_FOR_EACH (br, node, &all_bridges) {
1779 int error = ofproto_run(br->ofproto);
1781 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1782 VLOG_ERR_RL(&rl, "bridge %s: datapath was destroyed externally, "
1783 "forcing reconfiguration", br->name);
1784 datapath_destroyed = true;
1788 /* Re-configure SSL. We do this on every trip through the main loop,
1789 * instead of just when the database changes, because the contents of the
1790 * key and certificate files can change without the database changing.
1792 * We do this before bridge_reconfigure() because that function might
1793 * initiate SSL connections and thus requires SSL to be configured. */
1794 if (cfg && cfg->ssl) {
1795 const struct ovsrec_ssl *ssl = cfg->ssl;
1797 stream_ssl_set_key_and_cert(ssl->private_key, ssl->certificate);
1798 stream_ssl_set_ca_cert_file(ssl->ca_cert, ssl->bootstrap_ca_cert);
1801 if (database_changed || datapath_destroyed) {
1803 struct ovsdb_idl_txn *txn = ovsdb_idl_txn_create(idl);
1805 bridge_reconfigure(cfg);
1807 ovsrec_open_vswitch_set_cur_cfg(cfg, cfg->next_cfg);
1808 ovsdb_idl_txn_commit(txn);
1809 ovsdb_idl_txn_destroy(txn); /* XXX */
1811 /* We still need to reconfigure to avoid dangling pointers to
1812 * now-destroyed ovsrec structures inside bridge data. */
1813 static const struct ovsrec_open_vswitch null_cfg;
1815 bridge_reconfigure(&null_cfg);
1819 /* Refresh system and interface stats if necessary. */
1820 if (time_msec() >= stats_timer) {
1822 struct ovsdb_idl_txn *txn;
1824 txn = ovsdb_idl_txn_create(idl);
1825 HMAP_FOR_EACH (br, node, &all_bridges) {
1828 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1829 struct iface *iface;
1831 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1832 iface_refresh_stats(iface);
1833 iface_refresh_status(iface);
1837 refresh_system_stats(cfg);
1838 refresh_controller_status();
1839 ovsdb_idl_txn_commit(txn);
1840 ovsdb_idl_txn_destroy(txn); /* XXX */
1843 stats_timer = time_msec() + STATS_INTERVAL;
1846 if (time_msec() >= db_limiter) {
1847 struct ovsdb_idl_txn *txn;
1849 txn = ovsdb_idl_txn_create(idl);
1850 HMAP_FOR_EACH (br, node, &all_bridges) {
1851 struct iface *iface;
1854 br_refresh_stp_status(br);
1856 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1857 port_refresh_stp_status(port);
1860 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
1861 const char *link_state;
1862 int64_t link_resets;
1865 if (iface_is_synthetic(iface)) {
1869 current = ofproto_port_is_lacp_current(br->ofproto,
1873 ovsrec_interface_set_lacp_current(iface->cfg, &bl, 1);
1875 ovsrec_interface_set_lacp_current(iface->cfg, NULL, 0);
1878 link_state = netdev_get_carrier(iface->netdev) ? "up" : "down";
1879 ovsrec_interface_set_link_state(iface->cfg, link_state);
1881 link_resets = netdev_get_carrier_resets(iface->netdev);
1882 ovsrec_interface_set_link_resets(iface->cfg, &link_resets, 1);
1886 if (ovsdb_idl_txn_commit(txn) != TXN_UNCHANGED) {
1887 db_limiter = time_msec() + DB_LIMIT_INTERVAL;
1889 ovsdb_idl_txn_destroy(txn);
1892 refresh_cfm_stats();
1898 ovsdb_idl_wait(idl);
1899 if (!hmap_is_empty(&all_bridges)) {
1902 HMAP_FOR_EACH (br, node, &all_bridges) {
1903 ofproto_wait(br->ofproto);
1905 poll_timer_wait_until(stats_timer);
1907 if (db_limiter > time_msec()) {
1908 poll_timer_wait_until(db_limiter);
1913 /* QoS unixctl user interface functions. */
1915 struct qos_unixctl_show_cbdata {
1917 struct iface *iface;
1921 qos_unixctl_show_cb(unsigned int queue_id,
1922 const struct shash *details,
1925 struct qos_unixctl_show_cbdata *data = aux;
1926 struct ds *ds = data->ds;
1927 struct iface *iface = data->iface;
1928 struct netdev_queue_stats stats;
1929 struct shash_node *node;
1932 ds_put_cstr(ds, "\n");
1934 ds_put_format(ds, "Queue %u:\n", queue_id);
1936 ds_put_cstr(ds, "Default:\n");
1939 SHASH_FOR_EACH (node, details) {
1940 ds_put_format(ds, "\t%s: %s\n", node->name, (char *)node->data);
1943 error = netdev_get_queue_stats(iface->netdev, queue_id, &stats);
1945 if (stats.tx_packets != UINT64_MAX) {
1946 ds_put_format(ds, "\ttx_packets: %"PRIu64"\n", stats.tx_packets);
1949 if (stats.tx_bytes != UINT64_MAX) {
1950 ds_put_format(ds, "\ttx_bytes: %"PRIu64"\n", stats.tx_bytes);
1953 if (stats.tx_errors != UINT64_MAX) {
1954 ds_put_format(ds, "\ttx_errors: %"PRIu64"\n", stats.tx_errors);
1957 ds_put_format(ds, "\tFailed to get statistics for queue %u: %s",
1958 queue_id, strerror(error));
1963 qos_unixctl_show(struct unixctl_conn *conn,
1964 const char *args, void *aux OVS_UNUSED)
1966 struct ds ds = DS_EMPTY_INITIALIZER;
1967 struct shash sh = SHASH_INITIALIZER(&sh);
1968 struct iface *iface;
1970 struct shash_node *node;
1971 struct qos_unixctl_show_cbdata data;
1974 iface = iface_find(args);
1976 unixctl_command_reply(conn, 501, "no such interface");
1980 netdev_get_qos(iface->netdev, &type, &sh);
1982 if (*type != '\0') {
1983 ds_put_format(&ds, "QoS: %s %s\n", iface->name, type);
1985 SHASH_FOR_EACH (node, &sh) {
1986 ds_put_format(&ds, "%s: %s\n", node->name, (char *)node->data);
1991 error = netdev_dump_queues(iface->netdev, qos_unixctl_show_cb, &data);
1994 ds_put_format(&ds, "failed to dump queues: %s", strerror(error));
1996 unixctl_command_reply(conn, 200, ds_cstr(&ds));
1998 ds_put_format(&ds, "QoS not configured on %s\n", iface->name);
1999 unixctl_command_reply(conn, 501, ds_cstr(&ds));
2002 shash_destroy_free_data(&sh);
2006 /* Bridge reconfiguration functions. */
2008 bridge_create(const struct ovsrec_bridge *br_cfg)
2012 assert(!bridge_lookup(br_cfg->name));
2013 br = xzalloc(sizeof *br);
2015 br->name = xstrdup(br_cfg->name);
2016 br->type = xstrdup(ofproto_normalize_type(br_cfg->datapath_type));
2019 /* Derive the default Ethernet address from the bridge's UUID. This should
2020 * be unique and it will be stable between ovs-vswitchd runs. */
2021 memcpy(br->default_ea, &br_cfg->header_.uuid, ETH_ADDR_LEN);
2022 eth_addr_mark_random(br->default_ea);
2024 hmap_init(&br->ports);
2025 hmap_init(&br->ifaces);
2026 hmap_init(&br->iface_by_name);
2027 hmap_init(&br->mirrors);
2029 hmap_insert(&all_bridges, &br->node, hash_string(br->name, 0));
2033 bridge_destroy(struct bridge *br)
2036 struct mirror *mirror, *next_mirror;
2037 struct port *port, *next_port;
2039 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
2042 HMAP_FOR_EACH_SAFE (mirror, next_mirror, hmap_node, &br->mirrors) {
2043 mirror_destroy(mirror);
2045 hmap_remove(&all_bridges, &br->node);
2046 ofproto_destroy(br->ofproto);
2047 hmap_destroy(&br->ifaces);
2048 hmap_destroy(&br->ports);
2049 hmap_destroy(&br->iface_by_name);
2050 hmap_destroy(&br->mirrors);
2057 static struct bridge *
2058 bridge_lookup(const char *name)
2062 HMAP_FOR_EACH_WITH_HASH (br, node, hash_string(name, 0), &all_bridges) {
2063 if (!strcmp(br->name, name)) {
2070 /* Handle requests for a listing of all flows known by the OpenFlow
2071 * stack, including those normally hidden. */
2073 bridge_unixctl_dump_flows(struct unixctl_conn *conn,
2074 const char *args, void *aux OVS_UNUSED)
2079 br = bridge_lookup(args);
2081 unixctl_command_reply(conn, 501, "Unknown bridge");
2086 ofproto_get_all_flows(br->ofproto, &results);
2088 unixctl_command_reply(conn, 200, ds_cstr(&results));
2089 ds_destroy(&results);
2092 /* "bridge/reconnect [BRIDGE]": makes BRIDGE drop all of its controller
2093 * connections and reconnect. If BRIDGE is not specified, then all bridges
2094 * drop their controller connections and reconnect. */
2096 bridge_unixctl_reconnect(struct unixctl_conn *conn,
2097 const char *args, void *aux OVS_UNUSED)
2100 if (args[0] != '\0') {
2101 br = bridge_lookup(args);
2103 unixctl_command_reply(conn, 501, "Unknown bridge");
2106 ofproto_reconnect_controllers(br->ofproto);
2108 HMAP_FOR_EACH (br, node, &all_bridges) {
2109 ofproto_reconnect_controllers(br->ofproto);
2112 unixctl_command_reply(conn, 200, NULL);
2116 bridge_get_controllers(const struct bridge *br,
2117 struct ovsrec_controller ***controllersp)
2119 struct ovsrec_controller **controllers;
2120 size_t n_controllers;
2122 controllers = br->cfg->controller;
2123 n_controllers = br->cfg->n_controller;
2125 if (n_controllers == 1 && !strcmp(controllers[0]->target, "none")) {
2131 *controllersp = controllers;
2133 return n_controllers;
2136 /* Adds and deletes "struct port"s and "struct iface"s under 'br' to match
2137 * those configured in 'br->cfg'. */
2139 bridge_add_del_ports(struct bridge *br)
2141 struct port *port, *next;
2142 struct shash_node *node;
2143 struct shash new_ports;
2146 /* Collect new ports. */
2147 shash_init(&new_ports);
2148 for (i = 0; i < br->cfg->n_ports; i++) {
2149 const char *name = br->cfg->ports[i]->name;
2150 if (!shash_add_once(&new_ports, name, br->cfg->ports[i])) {
2151 VLOG_WARN("bridge %s: %s specified twice as bridge port",
2155 if (bridge_get_controllers(br, NULL)
2156 && !shash_find(&new_ports, br->name)) {
2157 VLOG_WARN("bridge %s: no port named %s, synthesizing one",
2158 br->name, br->name);
2160 br->synth_local_port.interfaces = &br->synth_local_ifacep;
2161 br->synth_local_port.n_interfaces = 1;
2162 br->synth_local_port.name = br->name;
2164 br->synth_local_iface.name = br->name;
2165 br->synth_local_iface.type = "internal";
2167 br->synth_local_ifacep = &br->synth_local_iface;
2169 shash_add(&new_ports, br->name, &br->synth_local_port);
2172 /* Get rid of deleted ports.
2173 * Get rid of deleted interfaces on ports that still exist.
2174 * Update 'cfg' of ports that still exist. */
2175 HMAP_FOR_EACH_SAFE (port, next, hmap_node, &br->ports) {
2176 port->cfg = shash_find_data(&new_ports, port->name);
2180 port_del_ifaces(port);
2184 /* Create new ports.
2185 * Add new interfaces to existing ports. */
2186 SHASH_FOR_EACH (node, &new_ports) {
2187 struct port *port = port_lookup(br, node->name);
2189 struct ovsrec_port *cfg = node->data;
2190 port = port_create(br, cfg);
2192 port_add_ifaces(port);
2193 if (list_is_empty(&port->ifaces)) {
2194 VLOG_WARN("bridge %s: port %s has no interfaces, dropping",
2195 br->name, port->name);
2199 shash_destroy(&new_ports);
2202 /* Initializes 'oc' appropriately as a management service controller for
2205 * The caller must free oc->target when it is no longer needed. */
2207 bridge_ofproto_controller_for_mgmt(const struct bridge *br,
2208 struct ofproto_controller *oc)
2210 oc->target = xasprintf("punix:%s/%s.mgmt", ovs_rundir(), br->name);
2211 oc->max_backoff = 0;
2212 oc->probe_interval = 60;
2213 oc->band = OFPROTO_OUT_OF_BAND;
2215 oc->burst_limit = 0;
2218 /* Converts ovsrec_controller 'c' into an ofproto_controller in 'oc'. */
2220 bridge_ofproto_controller_from_ovsrec(const struct ovsrec_controller *c,
2221 struct ofproto_controller *oc)
2223 oc->target = c->target;
2224 oc->max_backoff = c->max_backoff ? *c->max_backoff / 1000 : 8;
2225 oc->probe_interval = c->inactivity_probe ? *c->inactivity_probe / 1000 : 5;
2226 oc->band = (!c->connection_mode || !strcmp(c->connection_mode, "in-band")
2227 ? OFPROTO_IN_BAND : OFPROTO_OUT_OF_BAND);
2228 oc->rate_limit = c->controller_rate_limit ? *c->controller_rate_limit : 0;
2229 oc->burst_limit = (c->controller_burst_limit
2230 ? *c->controller_burst_limit : 0);
2233 /* Configures the IP stack for 'br''s local interface properly according to the
2234 * configuration in 'c'. */
2236 bridge_configure_local_iface_netdev(struct bridge *br,
2237 struct ovsrec_controller *c)
2239 struct netdev *netdev;
2240 struct in_addr mask, gateway;
2242 struct iface *local_iface;
2245 /* If there's no local interface or no IP address, give up. */
2246 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
2247 if (!local_iface || !c->local_ip || !inet_aton(c->local_ip, &ip)) {
2251 /* Bring up the local interface. */
2252 netdev = local_iface->netdev;
2253 netdev_turn_flags_on(netdev, NETDEV_UP, true);
2255 /* Configure the IP address and netmask. */
2256 if (!c->local_netmask
2257 || !inet_aton(c->local_netmask, &mask)
2259 mask.s_addr = guess_netmask(ip.s_addr);
2261 if (!netdev_set_in4(netdev, ip, mask)) {
2262 VLOG_INFO("bridge %s: configured IP address "IP_FMT", netmask "IP_FMT,
2263 br->name, IP_ARGS(&ip.s_addr), IP_ARGS(&mask.s_addr));
2266 /* Configure the default gateway. */
2267 if (c->local_gateway
2268 && inet_aton(c->local_gateway, &gateway)
2269 && gateway.s_addr) {
2270 if (!netdev_add_router(netdev, gateway)) {
2271 VLOG_INFO("bridge %s: configured gateway "IP_FMT,
2272 br->name, IP_ARGS(&gateway.s_addr));
2277 /* Returns true if 'a' and 'b' are the same except that any number of slashes
2278 * in either string are treated as equal to any number of slashes in the other,
2279 * e.g. "x///y" is equal to "x/y". */
2281 equal_pathnames(const char *a, const char *b)
2285 a += strspn(a, "/");
2286 b += strspn(b, "/");
2287 } else if (*a == '\0') {
2298 bridge_configure_remotes(struct bridge *br,
2299 const struct sockaddr_in *managers, size_t n_managers)
2301 const char *disable_ib_str, *queue_id_str;
2302 bool disable_in_band = false;
2305 struct ovsrec_controller **controllers;
2306 size_t n_controllers;
2308 enum ofproto_fail_mode fail_mode;
2310 struct ofproto_controller *ocs;
2314 /* Check if we should disable in-band control on this bridge. */
2315 disable_ib_str = bridge_get_other_config(br->cfg, "disable-in-band");
2316 if (disable_ib_str && !strcmp(disable_ib_str, "true")) {
2317 disable_in_band = true;
2320 /* Set OpenFlow queue ID for in-band control. */
2321 queue_id_str = bridge_get_other_config(br->cfg, "in-band-queue");
2322 queue_id = queue_id_str ? strtol(queue_id_str, NULL, 10) : -1;
2323 ofproto_set_in_band_queue(br->ofproto, queue_id);
2325 if (disable_in_band) {
2326 ofproto_set_extra_in_band_remotes(br->ofproto, NULL, 0);
2328 ofproto_set_extra_in_band_remotes(br->ofproto, managers, n_managers);
2331 n_controllers = bridge_get_controllers(br, &controllers);
2333 ocs = xmalloc((n_controllers + 1) * sizeof *ocs);
2336 bridge_ofproto_controller_for_mgmt(br, &ocs[n_ocs++]);
2337 for (i = 0; i < n_controllers; i++) {
2338 struct ovsrec_controller *c = controllers[i];
2340 if (!strncmp(c->target, "punix:", 6)
2341 || !strncmp(c->target, "unix:", 5)) {
2342 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2345 whitelist = xasprintf("unix:%s/%s.controller",
2346 ovs_rundir(), br->name);
2347 if (!equal_pathnames(c->target, whitelist)) {
2348 /* Prevent remote ovsdb-server users from accessing arbitrary
2349 * Unix domain sockets and overwriting arbitrary local
2351 VLOG_ERR_RL(&rl, "bridge %s: Not adding Unix domain socket "
2352 "controller \"%s\" due to possibility for remote "
2353 "exploit. Instead, specify whitelisted \"%s\" or "
2354 "connect to \"unix:%s/%s.mgmt\" (which is always "
2355 "available without special configuration).",
2356 br->name, c->target, whitelist,
2357 ovs_rundir(), br->name);
2365 bridge_configure_local_iface_netdev(br, c);
2366 bridge_ofproto_controller_from_ovsrec(c, &ocs[n_ocs]);
2367 if (disable_in_band) {
2368 ocs[n_ocs].band = OFPROTO_OUT_OF_BAND;
2373 ofproto_set_controllers(br->ofproto, ocs, n_ocs);
2374 free(ocs[0].target); /* From bridge_ofproto_controller_for_mgmt(). */
2377 /* Set the fail-mode. */
2378 fail_mode = !br->cfg->fail_mode
2379 || !strcmp(br->cfg->fail_mode, "standalone")
2380 ? OFPROTO_FAIL_STANDALONE
2381 : OFPROTO_FAIL_SECURE;
2382 ofproto_set_fail_mode(br->ofproto, fail_mode);
2384 /* Configure OpenFlow controller connection snooping. */
2385 if (!ofproto_has_snoops(br->ofproto)) {
2389 sset_add_and_free(&snoops, xasprintf("punix:%s/%s.snoop",
2390 ovs_rundir(), br->name));
2391 ofproto_set_snoops(br->ofproto, &snoops);
2392 sset_destroy(&snoops);
2396 /* Port functions. */
2398 static struct port *
2399 port_create(struct bridge *br, const struct ovsrec_port *cfg)
2403 port = xzalloc(sizeof *port);
2405 port->name = xstrdup(cfg->name);
2407 list_init(&port->ifaces);
2409 hmap_insert(&br->ports, &port->hmap_node, hash_string(port->name, 0));
2411 VLOG_INFO("created port %s on bridge %s", port->name, br->name);
2417 get_port_other_config(const struct ovsrec_port *port, const char *key,
2418 const char *default_value)
2422 value = get_ovsrec_key_value(&port->header_, &ovsrec_port_col_other_config,
2424 return value ? value : default_value;
2428 get_interface_other_config(const struct ovsrec_interface *iface,
2429 const char *key, const char *default_value)
2433 value = get_ovsrec_key_value(&iface->header_,
2434 &ovsrec_interface_col_other_config, key);
2435 return value ? value : default_value;
2438 /* Deletes interfaces from 'port' that are no longer configured for it. */
2440 port_del_ifaces(struct port *port)
2442 struct iface *iface, *next;
2443 struct sset new_ifaces;
2446 /* Collect list of new interfaces. */
2447 sset_init(&new_ifaces);
2448 for (i = 0; i < port->cfg->n_interfaces; i++) {
2449 const char *name = port->cfg->interfaces[i]->name;
2450 const char *type = port->cfg->interfaces[i]->name;
2451 if (strcmp(type, "null")) {
2452 sset_add(&new_ifaces, name);
2456 /* Get rid of deleted interfaces. */
2457 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2458 if (!sset_contains(&new_ifaces, iface->name)) {
2459 iface_destroy(iface);
2463 sset_destroy(&new_ifaces);
2466 /* Adds new interfaces to 'port' and updates 'type' and 'cfg' members of
2469 port_add_ifaces(struct port *port)
2471 struct shash new_ifaces;
2472 struct shash_node *node;
2475 /* Collect new ifaces. */
2476 shash_init(&new_ifaces);
2477 for (i = 0; i < port->cfg->n_interfaces; i++) {
2478 const struct ovsrec_interface *cfg = port->cfg->interfaces[i];
2479 if (strcmp(cfg->type, "null")
2480 && !shash_add_once(&new_ifaces, cfg->name, cfg)) {
2481 VLOG_WARN("port %s: %s specified twice as port interface",
2482 port->name, cfg->name);
2483 iface_clear_db_record(cfg);
2487 /* Create new interfaces.
2488 * Update interface types and 'cfg' members. */
2489 SHASH_FOR_EACH (node, &new_ifaces) {
2490 const struct ovsrec_interface *cfg = node->data;
2491 const char *iface_name = node->name;
2492 struct iface *iface;
2494 iface = iface_lookup(port->bridge, iface_name);
2496 iface = iface_create(port, cfg);
2501 /* Determine interface type. The local port always has type
2502 * "internal". Other ports take their type from the database and
2503 * default to "system" if none is specified. */
2504 iface->type = (!strcmp(iface_name, port->bridge->name) ? "internal"
2505 : cfg->type[0] ? cfg->type
2508 shash_destroy(&new_ifaces);
2512 port_destroy(struct port *port)
2515 struct bridge *br = port->bridge;
2516 struct iface *iface, *next;
2519 ofproto_bundle_unregister(br->ofproto, port);
2522 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2523 iface_destroy(iface);
2526 hmap_remove(&br->ports, &port->hmap_node);
2528 VLOG_INFO("destroyed port %s on bridge %s", port->name, br->name);
2535 static struct port *
2536 port_lookup(const struct bridge *br, const char *name)
2540 HMAP_FOR_EACH_WITH_HASH (port, hmap_node, hash_string(name, 0),
2542 if (!strcmp(port->name, name)) {
2550 enable_lacp(struct port *port, bool *activep)
2552 if (!port->cfg->lacp) {
2553 /* XXX when LACP implementation has been sufficiently tested, enable by
2554 * default and make active on bonded ports. */
2556 } else if (!strcmp(port->cfg->lacp, "off")) {
2558 } else if (!strcmp(port->cfg->lacp, "active")) {
2561 } else if (!strcmp(port->cfg->lacp, "passive")) {
2565 VLOG_WARN("port %s: unknown LACP mode %s",
2566 port->name, port->cfg->lacp);
2571 static struct lacp_settings *
2572 port_configure_lacp(struct port *port, struct lacp_settings *s)
2574 const char *lacp_time;
2575 long long int custom_time;
2578 if (!enable_lacp(port, &s->active)) {
2582 s->name = port->name;
2583 memcpy(s->id, port->bridge->ea, ETH_ADDR_LEN);
2585 /* Prefer bondable links if unspecified. */
2586 priority = atoi(get_port_other_config(port->cfg, "lacp-system-priority",
2588 s->priority = (priority > 0 && priority <= UINT16_MAX
2590 : UINT16_MAX - !list_is_short(&port->ifaces));
2592 s->heartbeat = !strcmp(get_port_other_config(port->cfg,
2597 lacp_time = get_port_other_config(port->cfg, "lacp-time", "slow");
2598 custom_time = atoi(lacp_time);
2599 if (!strcmp(lacp_time, "fast")) {
2600 s->lacp_time = LACP_TIME_FAST;
2601 } else if (!strcmp(lacp_time, "slow")) {
2602 s->lacp_time = LACP_TIME_SLOW;
2603 } else if (custom_time > 0) {
2604 s->lacp_time = LACP_TIME_CUSTOM;
2605 s->custom_time = custom_time;
2607 s->lacp_time = LACP_TIME_SLOW;
2614 iface_configure_lacp(struct iface *iface, struct lacp_slave_settings *s)
2616 int priority, portid, key;
2618 portid = atoi(get_interface_other_config(iface->cfg, "lacp-port-id", "0"));
2619 priority = atoi(get_interface_other_config(iface->cfg,
2620 "lacp-port-priority", "0"));
2621 key = atoi(get_interface_other_config(iface->cfg, "lacp-aggregation-key",
2624 if (portid <= 0 || portid > UINT16_MAX) {
2625 portid = iface->ofp_port;
2628 if (priority <= 0 || priority > UINT16_MAX) {
2629 priority = UINT16_MAX;
2632 if (key < 0 || key > UINT16_MAX) {
2636 s->name = iface->name;
2638 s->priority = priority;
2643 port_configure_bond(struct port *port, struct bond_settings *s,
2644 uint32_t *bond_stable_ids)
2646 const char *detect_s;
2647 struct iface *iface;
2648 int miimon_interval;
2651 s->name = port->name;
2652 s->balance = BM_SLB;
2653 if (port->cfg->bond_mode
2654 && !bond_mode_from_string(&s->balance, port->cfg->bond_mode)) {
2655 VLOG_WARN("port %s: unknown bond_mode %s, defaulting to %s",
2656 port->name, port->cfg->bond_mode,
2657 bond_mode_to_string(s->balance));
2659 if (s->balance == BM_SLB && port->bridge->cfg->n_flood_vlans) {
2660 VLOG_WARN("port %s: SLB bonds are incompatible with flood_vlans, "
2661 "please use another bond type or disable flood_vlans",
2665 miimon_interval = atoi(get_port_other_config(port->cfg,
2666 "bond-miimon-interval", "0"));
2667 if (miimon_interval <= 0) {
2668 miimon_interval = 200;
2671 detect_s = get_port_other_config(port->cfg, "bond-detect-mode", "carrier");
2672 if (!strcmp(detect_s, "carrier")) {
2673 miimon_interval = 0;
2674 } else if (strcmp(detect_s, "miimon")) {
2675 VLOG_WARN("port %s: unsupported bond-detect-mode %s, "
2676 "defaulting to carrier", port->name, detect_s);
2677 miimon_interval = 0;
2680 s->up_delay = MAX(0, port->cfg->bond_updelay);
2681 s->down_delay = MAX(0, port->cfg->bond_downdelay);
2682 s->basis = atoi(get_port_other_config(port->cfg, "bond-hash-basis", "0"));
2683 s->rebalance_interval = atoi(
2684 get_port_other_config(port->cfg, "bond-rebalance-interval", "10000"));
2685 if (s->rebalance_interval < 1000) {
2686 s->rebalance_interval = 1000;
2689 s->fake_iface = port->cfg->bond_fake_iface;
2692 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
2693 long long stable_id;
2695 stable_id = atoll(get_interface_other_config(iface->cfg,
2696 "bond-stable-id", "0"));
2697 if (stable_id <= 0 || stable_id >= UINT32_MAX) {
2698 stable_id = iface->ofp_port;
2700 bond_stable_ids[i++] = stable_id;
2702 netdev_set_miimon_interval(iface->netdev, miimon_interval);
2706 /* Returns true if 'port' is synthetic, that is, if we constructed it locally
2707 * instead of obtaining it from the database. */
2709 port_is_synthetic(const struct port *port)
2711 return ovsdb_idl_row_is_synthetic(&port->cfg->header_);
2714 /* Interface functions. */
2716 static struct iface *
2717 iface_create(struct port *port, const struct ovsrec_interface *if_cfg)
2719 struct bridge *br = port->bridge;
2720 struct iface *iface;
2721 char *name = if_cfg->name;
2723 iface = xzalloc(sizeof *iface);
2725 iface->name = xstrdup(name);
2726 iface->ofp_port = -1;
2727 iface->tag = tag_create_random();
2728 iface->netdev = NULL;
2729 iface->cfg = if_cfg;
2731 hmap_insert(&br->iface_by_name, &iface->name_node, hash_string(name, 0));
2733 list_push_back(&port->ifaces, &iface->port_elem);
2735 VLOG_DBG("attached network device %s to port %s", iface->name, port->name);
2741 iface_destroy(struct iface *iface)
2744 struct port *port = iface->port;
2745 struct bridge *br = port->bridge;
2747 if (br->ofproto && iface->ofp_port >= 0) {
2748 ofproto_port_unregister(br->ofproto, iface->ofp_port);
2751 if (iface->ofp_port >= 0) {
2752 hmap_remove(&br->ifaces, &iface->ofp_port_node);
2755 list_remove(&iface->port_elem);
2756 hmap_remove(&br->iface_by_name, &iface->name_node);
2758 netdev_close(iface->netdev);
2765 static struct iface *
2766 iface_lookup(const struct bridge *br, const char *name)
2768 struct iface *iface;
2770 HMAP_FOR_EACH_WITH_HASH (iface, name_node, hash_string(name, 0),
2771 &br->iface_by_name) {
2772 if (!strcmp(iface->name, name)) {
2780 static struct iface *
2781 iface_find(const char *name)
2783 const struct bridge *br;
2785 HMAP_FOR_EACH (br, node, &all_bridges) {
2786 struct iface *iface = iface_lookup(br, name);
2795 static struct iface *
2796 iface_from_ofp_port(const struct bridge *br, uint16_t ofp_port)
2798 struct iface *iface;
2800 HMAP_FOR_EACH_IN_BUCKET (iface, ofp_port_node,
2801 hash_int(ofp_port, 0), &br->ifaces) {
2802 if (iface->ofp_port == ofp_port) {
2809 /* Set Ethernet address of 'iface', if one is specified in the configuration
2812 iface_set_mac(struct iface *iface)
2814 uint8_t ea[ETH_ADDR_LEN];
2816 if (!strcmp(iface->type, "internal")
2817 && iface->cfg->mac && eth_addr_from_string(iface->cfg->mac, ea)) {
2818 if (iface->ofp_port == OFPP_LOCAL) {
2819 VLOG_ERR("interface %s: ignoring mac in Interface record "
2820 "(use Bridge record to set local port's mac)",
2822 } else if (eth_addr_is_multicast(ea)) {
2823 VLOG_ERR("interface %s: cannot set MAC to multicast address",
2826 int error = netdev_set_etheraddr(iface->netdev, ea);
2828 VLOG_ERR("interface %s: setting MAC failed (%s)",
2829 iface->name, strerror(error));
2835 /* Sets the ofport column of 'if_cfg' to 'ofport'. */
2837 iface_set_ofport(const struct ovsrec_interface *if_cfg, int64_t ofport)
2839 if (if_cfg && !ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
2840 ovsrec_interface_set_ofport(if_cfg, &ofport, 1);
2844 /* Clears all of the fields in 'if_cfg' that indicate interface status, and
2845 * sets the "ofport" field to -1.
2847 * This is appropriate when 'if_cfg''s interface cannot be created or is
2848 * otherwise invalid. */
2850 iface_clear_db_record(const struct ovsrec_interface *if_cfg)
2852 if (!ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
2853 iface_set_ofport(if_cfg, -1);
2854 ovsrec_interface_set_status(if_cfg, NULL, NULL, 0);
2855 ovsrec_interface_set_admin_state(if_cfg, NULL);
2856 ovsrec_interface_set_duplex(if_cfg, NULL);
2857 ovsrec_interface_set_link_speed(if_cfg, NULL, 0);
2858 ovsrec_interface_set_link_state(if_cfg, NULL);
2859 ovsrec_interface_set_mtu(if_cfg, NULL, 0);
2860 ovsrec_interface_set_cfm_fault(if_cfg, NULL, 0);
2861 ovsrec_interface_set_cfm_remote_mpids(if_cfg, NULL, 0);
2862 ovsrec_interface_set_lacp_current(if_cfg, NULL, 0);
2863 ovsrec_interface_set_statistics(if_cfg, NULL, NULL, 0);
2867 /* Adds the 'n' key-value pairs in 'keys' in 'values' to 'shash'.
2869 * The value strings in '*shash' are taken directly from values[], not copied,
2870 * so the caller should not modify or free them. */
2872 shash_from_ovs_idl_map(char **keys, char **values, size_t n,
2873 struct shash *shash)
2878 for (i = 0; i < n; i++) {
2879 shash_add(shash, keys[i], values[i]);
2883 /* Creates 'keys' and 'values' arrays from 'shash'.
2885 * Sets 'keys' and 'values' to heap allocated arrays representing the key-value
2886 * pairs in 'shash'. The caller takes ownership of 'keys' and 'values'. They
2887 * are populated with with strings taken directly from 'shash' and thus have
2888 * the same ownership of the key-value pairs in shash.
2891 shash_to_ovs_idl_map(struct shash *shash,
2892 char ***keys, char ***values, size_t *n)
2896 struct shash_node *sn;
2898 count = shash_count(shash);
2900 k = xmalloc(count * sizeof *k);
2901 v = xmalloc(count * sizeof *v);
2904 SHASH_FOR_EACH(sn, shash) {
2915 struct iface_delete_queues_cbdata {
2916 struct netdev *netdev;
2917 const struct ovsdb_datum *queues;
2921 queue_ids_include(const struct ovsdb_datum *queues, int64_t target)
2923 union ovsdb_atom atom;
2925 atom.integer = target;
2926 return ovsdb_datum_find_key(queues, &atom, OVSDB_TYPE_INTEGER) != UINT_MAX;
2930 iface_delete_queues(unsigned int queue_id,
2931 const struct shash *details OVS_UNUSED, void *cbdata_)
2933 struct iface_delete_queues_cbdata *cbdata = cbdata_;
2935 if (!queue_ids_include(cbdata->queues, queue_id)) {
2936 netdev_delete_queue(cbdata->netdev, queue_id);
2941 iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos)
2943 if (!qos || qos->type[0] == '\0' || qos->n_queues < 1) {
2944 netdev_set_qos(iface->netdev, NULL, NULL);
2946 struct iface_delete_queues_cbdata cbdata;
2947 struct shash details;
2951 /* Configure top-level Qos for 'iface'. */
2952 shash_from_ovs_idl_map(qos->key_other_config, qos->value_other_config,
2953 qos->n_other_config, &details);
2954 netdev_set_qos(iface->netdev, qos->type, &details);
2955 shash_destroy(&details);
2957 /* Deconfigure queues that were deleted. */
2958 cbdata.netdev = iface->netdev;
2959 cbdata.queues = ovsrec_qos_get_queues(qos, OVSDB_TYPE_INTEGER,
2961 netdev_dump_queues(iface->netdev, iface_delete_queues, &cbdata);
2963 /* Configure queues for 'iface'. */
2965 for (i = 0; i < qos->n_queues; i++) {
2966 const struct ovsrec_queue *queue = qos->value_queues[i];
2967 unsigned int queue_id = qos->key_queues[i];
2969 if (queue_id == 0) {
2973 shash_from_ovs_idl_map(queue->key_other_config,
2974 queue->value_other_config,
2975 queue->n_other_config, &details);
2976 netdev_set_queue(iface->netdev, queue_id, &details);
2977 shash_destroy(&details);
2980 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
2981 VLOG_WARN_RL(&rl, "interface %s: QoS configured without a default "
2982 "queue (queue 0). Packets not directed to a "
2983 "correctly configured queue may be dropped.",
2988 netdev_set_policing(iface->netdev,
2989 iface->cfg->ingress_policing_rate,
2990 iface->cfg->ingress_policing_burst);
2994 iface_configure_cfm(struct iface *iface)
2996 const struct ovsrec_interface *cfg = iface->cfg;
2997 const char *extended_str, *opstate_str;
2998 struct cfm_settings s;
3000 if (!cfg->n_cfm_mpid) {
3001 ofproto_port_clear_cfm(iface->port->bridge->ofproto, iface->ofp_port);
3005 s.mpid = *cfg->cfm_mpid;
3006 s.interval = atoi(get_interface_other_config(iface->cfg, "cfm_interval",
3008 s.ccm_vlan = atoi(get_interface_other_config(iface->cfg, "cfm_ccm_vlan",
3010 if (s.interval <= 0) {
3014 extended_str = get_interface_other_config(iface->cfg, "cfm_extended",
3016 s.extended = !strcasecmp("true", extended_str);
3018 opstate_str = get_interface_other_config(iface->cfg, "cfm_opstate", "up");
3019 s.opup = !strcasecmp("up", opstate_str);
3021 ofproto_port_set_cfm(iface->port->bridge->ofproto, iface->ofp_port, &s);
3024 /* Returns true if 'iface' is synthetic, that is, if we constructed it locally
3025 * instead of obtaining it from the database. */
3027 iface_is_synthetic(const struct iface *iface)
3029 return ovsdb_idl_row_is_synthetic(&iface->cfg->header_);
3032 /* Port mirroring. */
3034 static struct mirror *
3035 mirror_find_by_uuid(struct bridge *br, const struct uuid *uuid)
3039 HMAP_FOR_EACH_IN_BUCKET (m, hmap_node, uuid_hash(uuid), &br->mirrors) {
3040 if (uuid_equals(uuid, &m->uuid)) {
3048 bridge_configure_mirrors(struct bridge *br)
3050 const struct ovsdb_datum *mc;
3051 unsigned long *flood_vlans;
3052 struct mirror *m, *next;
3055 /* Get rid of deleted mirrors. */
3056 mc = ovsrec_bridge_get_mirrors(br->cfg, OVSDB_TYPE_UUID);
3057 HMAP_FOR_EACH_SAFE (m, next, hmap_node, &br->mirrors) {
3058 union ovsdb_atom atom;
3060 atom.uuid = m->uuid;
3061 if (ovsdb_datum_find_key(mc, &atom, OVSDB_TYPE_UUID) == UINT_MAX) {
3066 /* Add new mirrors and reconfigure existing ones. */
3067 for (i = 0; i < br->cfg->n_mirrors; i++) {
3068 const struct ovsrec_mirror *cfg = br->cfg->mirrors[i];
3069 struct mirror *m = mirror_find_by_uuid(br, &cfg->header_.uuid);
3071 m = mirror_create(br, cfg);
3073 if (!mirror_configure(m, cfg)) {
3078 /* Update flooded vlans (for RSPAN). */
3079 flood_vlans = vlan_bitmap_from_array(br->cfg->flood_vlans,
3080 br->cfg->n_flood_vlans);
3081 ofproto_set_flood_vlans(br->ofproto, flood_vlans);
3082 bitmap_free(flood_vlans);
3085 static struct mirror *
3086 mirror_create(struct bridge *br, const struct ovsrec_mirror *cfg)
3090 m = xzalloc(sizeof *m);
3091 m->uuid = cfg->header_.uuid;
3092 hmap_insert(&br->mirrors, &m->hmap_node, uuid_hash(&m->uuid));
3094 m->name = xstrdup(cfg->name);
3100 mirror_destroy(struct mirror *m)
3103 struct bridge *br = m->bridge;
3106 ofproto_mirror_unregister(br->ofproto, m);
3109 hmap_remove(&br->mirrors, &m->hmap_node);
3116 mirror_collect_ports(struct mirror *m,
3117 struct ovsrec_port **in_ports, int n_in_ports,
3118 void ***out_portsp, size_t *n_out_portsp)
3120 void **out_ports = xmalloc(n_in_ports * sizeof *out_ports);
3121 size_t n_out_ports = 0;
3124 for (i = 0; i < n_in_ports; i++) {
3125 const char *name = in_ports[i]->name;
3126 struct port *port = port_lookup(m->bridge, name);
3128 out_ports[n_out_ports++] = port;
3130 VLOG_WARN("bridge %s: mirror %s cannot match on nonexistent "
3131 "port %s", m->bridge->name, m->name, name);
3134 *out_portsp = out_ports;
3135 *n_out_portsp = n_out_ports;
3139 mirror_configure(struct mirror *m, const struct ovsrec_mirror *cfg)
3141 struct ofproto_mirror_settings s;
3144 if (strcmp(cfg->name, m->name)) {
3146 m->name = xstrdup(cfg->name);
3150 /* Get output port or VLAN. */
3151 if (cfg->output_port) {
3152 s.out_bundle = port_lookup(m->bridge, cfg->output_port->name);
3153 if (!s.out_bundle) {
3154 VLOG_ERR("bridge %s: mirror %s outputs to port not on bridge",
3155 m->bridge->name, m->name);
3158 s.out_vlan = UINT16_MAX;
3160 if (cfg->output_vlan) {
3161 VLOG_ERR("bridge %s: mirror %s specifies both output port and "
3162 "output vlan; ignoring output vlan",
3163 m->bridge->name, m->name);
3165 } else if (cfg->output_vlan) {
3166 /* The database should prevent invalid VLAN values. */
3167 s.out_bundle = NULL;
3168 s.out_vlan = *cfg->output_vlan;
3170 VLOG_ERR("bridge %s: mirror %s does not specify output; ignoring",
3171 m->bridge->name, m->name);
3175 /* Get port selection. */
3176 if (cfg->select_all) {
3177 size_t n_ports = hmap_count(&m->bridge->ports);
3178 void **ports = xmalloc(n_ports * sizeof *ports);
3183 HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) {
3193 /* Get ports, dropping ports that don't exist.
3194 * The IDL ensures that there are no duplicates. */
3195 mirror_collect_ports(m, cfg->select_src_port, cfg->n_select_src_port,
3196 &s.srcs, &s.n_srcs);
3197 mirror_collect_ports(m, cfg->select_dst_port, cfg->n_select_dst_port,
3198 &s.dsts, &s.n_dsts);
3201 /* Get VLAN selection. */
3202 s.src_vlans = vlan_bitmap_from_array(cfg->select_vlan, cfg->n_select_vlan);
3205 ofproto_mirror_register(m->bridge->ofproto, m, &s);
3208 if (s.srcs != s.dsts) {