1 /* Copyright (c) 2008, 2009, 2010, 2011 Nicira Networks
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
28 #include "dynamic-string.h"
36 #include "ofp-print.h"
38 #include "ofproto/ofproto.h"
39 #include "poll-loop.h"
42 #include "socket-util.h"
43 #include "stream-ssl.h"
45 #include "system-stats.h"
49 #include "vswitchd/vswitch-idl.h"
50 #include "xenserver.h"
52 #include "sflow_api.h"
53 #include "vlan-bitmap.h"
55 VLOG_DEFINE_THIS_MODULE(bridge);
57 COVERAGE_DEFINE(bridge_reconfigure);
60 /* These members are always valid. */
61 struct list port_elem; /* Element in struct port's "ifaces" list. */
62 struct hmap_node name_node; /* In struct bridge's "iface_by_name" hmap. */
63 struct port *port; /* Containing port. */
64 char *name; /* Host network device name. */
65 tag_type tag; /* Tag associated with this interface. */
67 /* These members are valid only after bridge_reconfigure() causes them to
69 struct hmap_node ofp_port_node; /* In struct bridge's "ifaces" hmap. */
70 int ofp_port; /* OpenFlow port number, -1 if unknown. */
71 struct netdev *netdev; /* Network device. */
72 const char *type; /* Usually same as cfg->type. */
73 const struct ovsrec_interface *cfg;
77 struct uuid uuid; /* UUID of this "mirror" record in database. */
78 struct hmap_node hmap_node; /* In struct bridge's "mirrors" hmap. */
79 struct bridge *bridge;
84 struct bridge *bridge;
85 struct hmap_node hmap_node; /* Element in struct bridge's "ports" hmap. */
88 const struct ovsrec_port *cfg;
90 /* An ordinary bridge port has 1 interface.
91 * A bridge port for bonding has at least 2 interfaces. */
92 struct list ifaces; /* List of "struct iface"s. */
96 struct hmap_node node; /* In 'all_bridges'. */
97 char *name; /* User-specified arbitrary name. */
98 char *type; /* Datapath type. */
99 uint8_t ea[ETH_ADDR_LEN]; /* Bridge Ethernet Address. */
100 uint8_t default_ea[ETH_ADDR_LEN]; /* Default MAC. */
101 const struct ovsrec_bridge *cfg;
103 /* OpenFlow switch processing. */
104 struct ofproto *ofproto; /* OpenFlow switch. */
107 struct hmap ports; /* "struct port"s indexed by name. */
108 struct hmap ifaces; /* "struct iface"s indexed by ofp_port. */
109 struct hmap iface_by_name; /* "struct iface"s indexed by name. */
111 /* Port mirroring. */
112 struct hmap mirrors; /* "struct mirror" indexed by UUID. */
114 /* Synthetic local port if necessary. */
115 struct ovsrec_port synth_local_port;
116 struct ovsrec_interface synth_local_iface;
117 struct ovsrec_interface *synth_local_ifacep;
120 /* All bridges, indexed by name. */
121 static struct hmap all_bridges = HMAP_INITIALIZER(&all_bridges);
123 /* OVSDB IDL used to obtain configuration. */
124 static struct ovsdb_idl *idl;
126 /* Each time this timer expires, the bridge fetches systems and interface
127 * statistics and pushes them into the database. */
128 #define STATS_INTERVAL (5 * 1000) /* In milliseconds. */
129 static long long int stats_timer = LLONG_MIN;
131 /* Stores the time after which rate limited statistics may be written to the
132 * database. Only updated when changes to the database require rate limiting.
134 #define DB_LIMIT_INTERVAL (1 * 1000) /* In milliseconds. */
135 static long long int db_limiter = LLONG_MIN;
137 static void add_del_bridges(const struct ovsrec_open_vswitch *);
138 static void bridge_del_ofprotos(void);
139 static bool bridge_add_ofprotos(struct bridge *);
140 static void bridge_create(const struct ovsrec_bridge *);
141 static void bridge_destroy(struct bridge *);
142 static struct bridge *bridge_lookup(const char *name);
143 static unixctl_cb_func bridge_unixctl_dump_flows;
144 static unixctl_cb_func bridge_unixctl_reconnect;
145 static size_t bridge_get_controllers(const struct bridge *br,
146 struct ovsrec_controller ***controllersp);
147 static void bridge_add_del_ports(struct bridge *);
148 static void bridge_add_ofproto_ports(struct bridge *);
149 static void bridge_del_ofproto_ports(struct bridge *);
150 static void bridge_refresh_ofp_port(struct bridge *);
151 static void bridge_configure_datapath_id(struct bridge *);
152 static void bridge_configure_flow_eviction_threshold(struct bridge *);
153 static void bridge_configure_netflow(struct bridge *);
154 static void bridge_configure_forward_bpdu(struct bridge *);
155 static void bridge_configure_sflow(struct bridge *, int *sflow_bridge_number);
156 static void bridge_configure_stp(struct bridge *);
157 static void bridge_configure_remotes(struct bridge *,
158 const struct sockaddr_in *managers,
160 static void bridge_pick_local_hw_addr(struct bridge *,
161 uint8_t ea[ETH_ADDR_LEN],
162 struct iface **hw_addr_iface);
163 static uint64_t bridge_pick_datapath_id(struct bridge *,
164 const uint8_t bridge_ea[ETH_ADDR_LEN],
165 struct iface *hw_addr_iface);
166 static const char *bridge_get_other_config(const struct ovsrec_bridge *,
168 static const char *get_port_other_config(const struct ovsrec_port *,
170 const char *default_value);
171 static uint64_t dpid_from_hash(const void *, size_t nbytes);
172 static bool bridge_has_bond_fake_iface(const struct bridge *,
174 static bool port_is_bond_fake_iface(const struct port *);
176 static unixctl_cb_func qos_unixctl_show;
178 static struct port *port_create(struct bridge *, const struct ovsrec_port *);
179 static void port_add_ifaces(struct port *);
180 static void port_del_ifaces(struct port *);
181 static void port_destroy(struct port *);
182 static struct port *port_lookup(const struct bridge *, const char *name);
183 static void port_configure(struct port *);
184 static struct lacp_settings *port_configure_lacp(struct port *,
185 struct lacp_settings *);
186 static void port_configure_bond(struct port *, struct bond_settings *,
187 uint32_t *bond_stable_ids);
188 static bool port_is_synthetic(const struct port *);
190 static void bridge_configure_mirrors(struct bridge *);
191 static struct mirror *mirror_create(struct bridge *,
192 const struct ovsrec_mirror *);
193 static void mirror_destroy(struct mirror *);
194 static bool mirror_configure(struct mirror *, const struct ovsrec_mirror *);
196 static void iface_configure_lacp(struct iface *, struct lacp_slave_settings *);
197 static struct iface *iface_create(struct port *port,
198 const struct ovsrec_interface *if_cfg);
199 static void iface_destroy(struct iface *);
200 static struct iface *iface_lookup(const struct bridge *, const char *name);
201 static struct iface *iface_find(const char *name);
202 static struct iface *iface_from_ofp_port(const struct bridge *,
204 static void iface_set_mac(struct iface *);
205 static void iface_set_ofport(const struct ovsrec_interface *, int64_t ofport);
206 static void iface_clear_db_record(const struct ovsrec_interface *if_cfg);
207 static void iface_configure_qos(struct iface *, const struct ovsrec_qos *);
208 static void iface_configure_cfm(struct iface *);
209 static void iface_refresh_cfm_stats(struct iface *);
210 static void iface_refresh_stats(struct iface *);
211 static void iface_refresh_status(struct iface *);
212 static bool iface_is_synthetic(const struct iface *);
214 static void shash_from_ovs_idl_map(char **keys, char **values, size_t n,
216 static void shash_to_ovs_idl_map(struct shash *,
217 char ***keys, char ***values, size_t *n);
219 /* Public functions. */
221 /* Initializes the bridge module, configuring it to obtain its configuration
222 * from an OVSDB server accessed over 'remote', which should be a string in a
223 * form acceptable to ovsdb_idl_create(). */
225 bridge_init(const char *remote)
227 /* Create connection to database. */
228 idl = ovsdb_idl_create(remote, &ovsrec_idl_class, true);
229 ovsdb_idl_set_lock(idl, "ovs_vswitchd");
231 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_cur_cfg);
232 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_statistics);
233 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_external_ids);
234 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_ovs_version);
235 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_db_version);
236 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_type);
237 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_version);
239 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_datapath_id);
240 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_status);
241 ovsdb_idl_omit(idl, &ovsrec_bridge_col_external_ids);
243 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_status);
244 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_statistics);
245 ovsdb_idl_omit(idl, &ovsrec_port_col_external_ids);
246 ovsdb_idl_omit(idl, &ovsrec_port_col_fake_bridge);
248 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_admin_state);
249 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_duplex);
250 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_speed);
251 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_state);
252 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_resets);
253 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mtu);
254 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ofport);
255 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_statistics);
256 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_status);
257 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault);
258 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_remote_mpids);
259 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_lacp_current);
260 ovsdb_idl_omit(idl, &ovsrec_interface_col_external_ids);
262 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_is_connected);
263 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_role);
264 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_status);
265 ovsdb_idl_omit(idl, &ovsrec_controller_col_external_ids);
267 ovsdb_idl_omit(idl, &ovsrec_qos_col_external_ids);
269 ovsdb_idl_omit(idl, &ovsrec_queue_col_external_ids);
271 ovsdb_idl_omit(idl, &ovsrec_mirror_col_external_ids);
273 ovsdb_idl_omit(idl, &ovsrec_netflow_col_external_ids);
275 ovsdb_idl_omit(idl, &ovsrec_sflow_col_external_ids);
277 ovsdb_idl_omit(idl, &ovsrec_manager_col_external_ids);
278 ovsdb_idl_omit(idl, &ovsrec_manager_col_inactivity_probe);
279 ovsdb_idl_omit(idl, &ovsrec_manager_col_is_connected);
280 ovsdb_idl_omit(idl, &ovsrec_manager_col_max_backoff);
281 ovsdb_idl_omit(idl, &ovsrec_manager_col_status);
283 ovsdb_idl_omit(idl, &ovsrec_ssl_col_external_ids);
285 /* Register unixctl commands. */
286 unixctl_command_register("qos/show", "interface", qos_unixctl_show, NULL);
287 unixctl_command_register("bridge/dump-flows", "bridge",
288 bridge_unixctl_dump_flows, NULL);
289 unixctl_command_register("bridge/reconnect", "[bridge]",
290 bridge_unixctl_reconnect, NULL);
299 struct bridge *br, *next_br;
301 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
304 ovsdb_idl_destroy(idl);
307 /* Looks at the list of managers in 'ovs_cfg' and extracts their remote IP
308 * addresses and ports into '*managersp' and '*n_managersp'. The caller is
309 * responsible for freeing '*managersp' (with free()).
311 * You may be asking yourself "why does ovs-vswitchd care?", because
312 * ovsdb-server is responsible for connecting to the managers, and ovs-vswitchd
313 * should not be and in fact is not directly involved in that. But
314 * ovs-vswitchd needs to make sure that ovsdb-server can reach the managers, so
315 * it has to tell in-band control where the managers are to enable that.
316 * (Thus, only managers connected in-band are collected.)
319 collect_in_band_managers(const struct ovsrec_open_vswitch *ovs_cfg,
320 struct sockaddr_in **managersp, size_t *n_managersp)
322 struct sockaddr_in *managers = NULL;
323 size_t n_managers = 0;
327 /* Collect all of the potential targets from the "targets" columns of the
328 * rows pointed to by "manager_options", excluding any that are
331 for (i = 0; i < ovs_cfg->n_manager_options; i++) {
332 struct ovsrec_manager *m = ovs_cfg->manager_options[i];
334 if (m->connection_mode && !strcmp(m->connection_mode, "out-of-band")) {
335 sset_find_and_delete(&targets, m->target);
337 sset_add(&targets, m->target);
341 /* Now extract the targets' IP addresses. */
342 if (!sset_is_empty(&targets)) {
345 managers = xmalloc(sset_count(&targets) * sizeof *managers);
346 SSET_FOR_EACH (target, &targets) {
347 struct sockaddr_in *sin = &managers[n_managers];
349 if ((!strncmp(target, "tcp:", 4)
350 && inet_parse_active(target + 4, JSONRPC_TCP_PORT, sin)) ||
351 (!strncmp(target, "ssl:", 4)
352 && inet_parse_active(target + 4, JSONRPC_SSL_PORT, sin))) {
357 sset_destroy(&targets);
359 *managersp = managers;
360 *n_managersp = n_managers;
364 bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
366 struct sockaddr_in *managers;
367 struct bridge *br, *next;
368 int sflow_bridge_number;
371 COVERAGE_INC(bridge_reconfigure);
373 /* Create and destroy "struct bridge"s, "struct port"s, and "struct
374 * iface"s according to 'ovs_cfg', with only very minimal configuration
377 * This is purely an update to bridge data structures. Nothing is pushed
378 * down to ofproto or lower layers. */
379 add_del_bridges(ovs_cfg);
380 HMAP_FOR_EACH (br, node, &all_bridges) {
381 bridge_add_del_ports(br);
384 /* Delete all datapaths and datapath ports that are no longer configured.
386 * The kernel will reject any attempt to add a given port to a datapath if
387 * that port already belongs to a different datapath, so we must do all
388 * port deletions before any port additions. A datapath always has a
389 * "local port" so we must delete not-configured datapaths too. */
390 bridge_del_ofprotos();
391 HMAP_FOR_EACH (br, node, &all_bridges) {
393 bridge_del_ofproto_ports(br);
397 /* Create datapaths and datapath ports that are missing.
399 * After this is done, we have our final set of bridges, ports, and
400 * interfaces. Every "struct bridge" has an ofproto, every "struct port"
401 * has at least one iface, every "struct iface" has a valid ofp_port and
403 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
405 if (bridge_add_ofprotos(br)) {
406 bridge_del_ofproto_ports(br);
412 HMAP_FOR_EACH (br, node, &all_bridges) {
413 bridge_refresh_ofp_port(br);
414 bridge_add_ofproto_ports(br);
417 /* Complete the configuration. */
418 sflow_bridge_number = 0;
419 collect_in_band_managers(ovs_cfg, &managers, &n_managers);
420 HMAP_FOR_EACH (br, node, &all_bridges) {
423 /* We need the datapath ID early to allow LACP ports to use it as the
424 * default system ID. */
425 bridge_configure_datapath_id(br);
427 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
430 port_configure(port);
432 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
433 iface_configure_cfm(iface);
434 iface_configure_qos(iface, port->cfg->qos);
435 iface_set_mac(iface);
438 bridge_configure_mirrors(br);
439 bridge_configure_flow_eviction_threshold(br);
440 bridge_configure_forward_bpdu(br);
441 bridge_configure_remotes(br, managers, n_managers);
442 bridge_configure_netflow(br);
443 bridge_configure_sflow(br, &sflow_bridge_number);
444 bridge_configure_stp(br);
448 /* ovs-vswitchd has completed initialization, so allow the process that
449 * forked us to exit successfully. */
450 daemonize_complete();
453 /* Iterate over all ofprotos and delete any of them that do not have a
454 * configured bridge or that are the wrong type. */
456 bridge_del_ofprotos(void)
464 ofproto_enumerate_types(&types);
465 SSET_FOR_EACH (type, &types) {
468 ofproto_enumerate_names(type, &names);
469 SSET_FOR_EACH (name, &names) {
470 struct bridge *br = bridge_lookup(name);
471 if (!br || strcmp(type, br->type)) {
472 ofproto_delete(name, type);
476 sset_destroy(&names);
477 sset_destroy(&types);
481 bridge_add_ofprotos(struct bridge *br)
483 int error = ofproto_create(br->name, br->type, &br->ofproto);
485 VLOG_ERR("failed to create bridge %s: %s", br->name, strerror(error));
492 port_configure(struct port *port)
494 const struct ovsrec_port *cfg = port->cfg;
495 struct bond_settings bond_settings;
496 struct lacp_settings lacp_settings;
497 struct ofproto_bundle_settings s;
505 s.slaves = xmalloc(list_size(&port->ifaces) * sizeof *s.slaves);
506 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
507 s.slaves[s.n_slaves++] = iface->ofp_port;
512 if (cfg->tag && *cfg->tag >= 0 && *cfg->tag <= 4095) {
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)
1239 struct hmapx mirror_output_ports;
1242 bool found_addr = false;
1246 *hw_addr_iface = NULL;
1248 /* Did the user request a particular MAC? */
1249 hwaddr = bridge_get_other_config(br->cfg, "hwaddr");
1250 if (hwaddr && eth_addr_from_string(hwaddr, ea)) {
1251 if (eth_addr_is_multicast(ea)) {
1252 VLOG_ERR("bridge %s: cannot set MAC address to multicast "
1253 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1254 } else if (eth_addr_is_zero(ea)) {
1255 VLOG_ERR("bridge %s: cannot set MAC address to zero", br->name);
1261 /* Mirror output ports don't participate in picking the local hardware
1262 * address. ofproto can't help us find out whether a given port is a
1263 * mirror output because we haven't configured mirrors yet, so we need to
1264 * accumulate them ourselves. */
1265 hmapx_init(&mirror_output_ports);
1266 for (i = 0; i < br->cfg->n_mirrors; i++) {
1267 struct ovsrec_mirror *m = br->cfg->mirrors[i];
1268 if (m->output_port) {
1269 hmapx_add(&mirror_output_ports, m->output_port);
1273 /* Otherwise choose the minimum non-local MAC address among all of the
1275 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1276 uint8_t iface_ea[ETH_ADDR_LEN];
1277 struct iface *candidate;
1278 struct iface *iface;
1280 /* Mirror output ports don't participate. */
1281 if (hmapx_contains(&mirror_output_ports, port->cfg)) {
1285 /* Choose the MAC address to represent the port. */
1287 if (port->cfg->mac && eth_addr_from_string(port->cfg->mac, iface_ea)) {
1288 /* Find the interface with this Ethernet address (if any) so that
1289 * we can provide the correct devname to the caller. */
1290 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1291 uint8_t candidate_ea[ETH_ADDR_LEN];
1292 if (!netdev_get_etheraddr(candidate->netdev, candidate_ea)
1293 && eth_addr_equals(iface_ea, candidate_ea)) {
1298 /* Choose the interface whose MAC address will represent the port.
1299 * The Linux kernel bonding code always chooses the MAC address of
1300 * the first slave added to a bond, and the Fedora networking
1301 * scripts always add slaves to a bond in alphabetical order, so
1302 * for compatibility we choose the interface with the name that is
1303 * first in alphabetical order. */
1304 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1305 if (!iface || strcmp(candidate->name, iface->name) < 0) {
1310 /* The local port doesn't count (since we're trying to choose its
1311 * MAC address anyway). */
1312 if (iface->ofp_port == OFPP_LOCAL) {
1317 error = netdev_get_etheraddr(iface->netdev, iface_ea);
1323 /* Compare against our current choice. */
1324 if (!eth_addr_is_multicast(iface_ea) &&
1325 !eth_addr_is_local(iface_ea) &&
1326 !eth_addr_is_reserved(iface_ea) &&
1327 !eth_addr_is_zero(iface_ea) &&
1328 (!found_addr || eth_addr_compare_3way(iface_ea, ea) < 0))
1330 memcpy(ea, iface_ea, ETH_ADDR_LEN);
1331 *hw_addr_iface = iface;
1336 VLOG_DBG("bridge %s: using bridge Ethernet address "ETH_ADDR_FMT,
1337 br->name, ETH_ADDR_ARGS(ea));
1339 memcpy(ea, br->default_ea, ETH_ADDR_LEN);
1340 *hw_addr_iface = NULL;
1341 VLOG_WARN("bridge %s: using default bridge Ethernet "
1342 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1345 hmapx_destroy(&mirror_output_ports);
1348 /* Choose and returns the datapath ID for bridge 'br' given that the bridge
1349 * Ethernet address is 'bridge_ea'. If 'bridge_ea' is the Ethernet address of
1350 * an interface on 'br', then that interface must be passed in as
1351 * 'hw_addr_iface'; if 'bridge_ea' was derived some other way, then
1352 * 'hw_addr_iface' must be passed in as a null pointer. */
1354 bridge_pick_datapath_id(struct bridge *br,
1355 const uint8_t bridge_ea[ETH_ADDR_LEN],
1356 struct iface *hw_addr_iface)
1359 * The procedure for choosing a bridge MAC address will, in the most
1360 * ordinary case, also choose a unique MAC that we can use as a datapath
1361 * ID. In some special cases, though, multiple bridges will end up with
1362 * the same MAC address. This is OK for the bridges, but it will confuse
1363 * the OpenFlow controller, because each datapath needs a unique datapath
1366 * Datapath IDs must be unique. It is also very desirable that they be
1367 * stable from one run to the next, so that policy set on a datapath
1370 const char *datapath_id;
1373 datapath_id = bridge_get_other_config(br->cfg, "datapath-id");
1374 if (datapath_id && dpid_from_string(datapath_id, &dpid)) {
1378 if (hw_addr_iface) {
1380 if (!netdev_get_vlan_vid(hw_addr_iface->netdev, &vlan)) {
1382 * A bridge whose MAC address is taken from a VLAN network device
1383 * (that is, a network device created with vconfig(8) or similar
1384 * tool) will have the same MAC address as a bridge on the VLAN
1385 * device's physical network device.
1387 * Handle this case by hashing the physical network device MAC
1388 * along with the VLAN identifier.
1390 uint8_t buf[ETH_ADDR_LEN + 2];
1391 memcpy(buf, bridge_ea, ETH_ADDR_LEN);
1392 buf[ETH_ADDR_LEN] = vlan >> 8;
1393 buf[ETH_ADDR_LEN + 1] = vlan;
1394 return dpid_from_hash(buf, sizeof buf);
1397 * Assume that this bridge's MAC address is unique, since it
1398 * doesn't fit any of the cases we handle specially.
1403 * A purely internal bridge, that is, one that has no non-virtual
1404 * network devices on it at all, is more difficult because it has no
1405 * natural unique identifier at all.
1407 * When the host is a XenServer, we handle this case by hashing the
1408 * host's UUID with the name of the bridge. Names of bridges are
1409 * persistent across XenServer reboots, although they can be reused if
1410 * an internal network is destroyed and then a new one is later
1411 * created, so this is fairly effective.
1413 * When the host is not a XenServer, we punt by using a random MAC
1414 * address on each run.
1416 const char *host_uuid = xenserver_get_host_uuid();
1418 char *combined = xasprintf("%s,%s", host_uuid, br->name);
1419 dpid = dpid_from_hash(combined, strlen(combined));
1425 return eth_addr_to_uint64(bridge_ea);
1429 dpid_from_hash(const void *data, size_t n)
1431 uint8_t hash[SHA1_DIGEST_SIZE];
1433 BUILD_ASSERT_DECL(sizeof hash >= ETH_ADDR_LEN);
1434 sha1_bytes(data, n, hash);
1435 eth_addr_mark_random(hash);
1436 return eth_addr_to_uint64(hash);
1440 iface_refresh_status(struct iface *iface)
1444 enum netdev_flags flags;
1451 if (iface_is_synthetic(iface)) {
1457 if (!netdev_get_status(iface->netdev, &sh)) {
1459 char **keys, **values;
1461 shash_to_ovs_idl_map(&sh, &keys, &values, &n);
1462 ovsrec_interface_set_status(iface->cfg, keys, values, n);
1467 ovsrec_interface_set_status(iface->cfg, NULL, NULL, 0);
1470 shash_destroy_free_data(&sh);
1472 error = netdev_get_flags(iface->netdev, &flags);
1474 ovsrec_interface_set_admin_state(iface->cfg, flags & NETDEV_UP ? "up" : "down");
1477 ovsrec_interface_set_admin_state(iface->cfg, NULL);
1480 error = netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
1482 ovsrec_interface_set_duplex(iface->cfg,
1483 netdev_features_is_full_duplex(current)
1485 /* warning: uint64_t -> int64_t conversion */
1486 bps = netdev_features_to_bps(current);
1487 ovsrec_interface_set_link_speed(iface->cfg, &bps, 1);
1490 ovsrec_interface_set_duplex(iface->cfg, NULL);
1491 ovsrec_interface_set_link_speed(iface->cfg, NULL, 0);
1494 error = netdev_get_mtu(iface->netdev, &mtu);
1497 ovsrec_interface_set_mtu(iface->cfg, &mtu_64, 1);
1500 ovsrec_interface_set_mtu(iface->cfg, NULL, 0);
1504 /* Writes 'iface''s CFM statistics to the database. */
1506 iface_refresh_cfm_stats(struct iface *iface)
1508 const struct ovsrec_interface *cfg = iface->cfg;
1510 const uint64_t *rmps;
1513 if (iface_is_synthetic(iface)) {
1517 fault = ofproto_port_get_cfm_fault(iface->port->bridge->ofproto,
1520 bool fault_bool = fault;
1521 ovsrec_interface_set_cfm_fault(cfg, &fault_bool, 1);
1523 ovsrec_interface_set_cfm_fault(cfg, NULL, 0);
1526 error = ofproto_port_get_cfm_remote_mpids(iface->port->bridge->ofproto,
1527 iface->ofp_port, &rmps, &n_rmps);
1529 ovsrec_interface_set_cfm_remote_mpids(cfg, (const int64_t *)rmps,
1532 ovsrec_interface_set_cfm_remote_mpids(cfg, NULL, 0);
1537 iface_refresh_stats(struct iface *iface)
1539 #define IFACE_STATS \
1540 IFACE_STAT(rx_packets, "rx_packets") \
1541 IFACE_STAT(tx_packets, "tx_packets") \
1542 IFACE_STAT(rx_bytes, "rx_bytes") \
1543 IFACE_STAT(tx_bytes, "tx_bytes") \
1544 IFACE_STAT(rx_dropped, "rx_dropped") \
1545 IFACE_STAT(tx_dropped, "tx_dropped") \
1546 IFACE_STAT(rx_errors, "rx_errors") \
1547 IFACE_STAT(tx_errors, "tx_errors") \
1548 IFACE_STAT(rx_frame_errors, "rx_frame_err") \
1549 IFACE_STAT(rx_over_errors, "rx_over_err") \
1550 IFACE_STAT(rx_crc_errors, "rx_crc_err") \
1551 IFACE_STAT(collisions, "collisions")
1553 #define IFACE_STAT(MEMBER, NAME) NAME,
1554 static char *keys[] = { IFACE_STATS };
1556 int64_t values[ARRAY_SIZE(keys)];
1559 struct netdev_stats stats;
1561 if (iface_is_synthetic(iface)) {
1565 /* Intentionally ignore return value, since errors will set 'stats' to
1566 * all-1s, and we will deal with that correctly below. */
1567 netdev_get_stats(iface->netdev, &stats);
1569 /* Copy statistics into values[] array. */
1571 #define IFACE_STAT(MEMBER, NAME) values[i++] = stats.MEMBER;
1574 assert(i == ARRAY_SIZE(keys));
1576 ovsrec_interface_set_statistics(iface->cfg, keys, values, ARRAY_SIZE(keys));
1581 br_refresh_stp_status(struct bridge *br)
1583 struct ofproto *ofproto = br->ofproto;
1584 struct ofproto_stp_status status;
1585 char *keys[3], *values[3];
1588 if (ofproto_get_stp_status(ofproto, &status)) {
1592 if (!status.enabled) {
1593 ovsrec_bridge_set_status(br->cfg, NULL, NULL, 0);
1597 keys[0] = "stp_bridge_id",
1598 values[0] = xasprintf(STP_ID_FMT, STP_ID_ARGS(status.bridge_id));
1599 keys[1] = "stp_designated_root",
1600 values[1] = xasprintf(STP_ID_FMT, STP_ID_ARGS(status.designated_root));
1601 keys[2] = "stp_root_path_cost",
1602 values[2] = xasprintf("%d", status.root_path_cost);
1604 ovsrec_bridge_set_status(br->cfg, keys, values, ARRAY_SIZE(values));
1606 for (i = 0; i < ARRAY_SIZE(values); i++) {
1612 port_refresh_stp_status(struct port *port)
1614 struct ofproto *ofproto = port->bridge->ofproto;
1615 struct iface *iface;
1616 struct ofproto_port_stp_status status;
1618 char *str_values[4];
1619 int64_t int_values[3];
1622 if (port_is_synthetic(port)) {
1626 /* STP doesn't currently support bonds. */
1627 if (!list_is_singleton(&port->ifaces)) {
1628 ovsrec_port_set_status(port->cfg, NULL, NULL, 0);
1632 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
1634 if (ofproto_port_get_stp_status(ofproto, iface->ofp_port, &status)) {
1638 if (!status.enabled) {
1639 ovsrec_port_set_status(port->cfg, NULL, NULL, 0);
1640 ovsrec_port_set_statistics(port->cfg, NULL, NULL, 0);
1644 /* Set Status column. */
1645 keys[0] = "stp_port_id";
1646 str_values[0] = xasprintf(STP_PORT_ID_FMT, status.port_id);
1647 keys[1] = "stp_state";
1648 str_values[1] = xstrdup(stp_state_name(status.state));
1649 keys[2] = "stp_sec_in_state";
1650 str_values[2] = xasprintf("%u", status.sec_in_state);
1651 keys[3] = "stp_role";
1652 str_values[3] = xstrdup(stp_role_name(status.role));
1654 ovsrec_port_set_status(port->cfg, keys, str_values,
1655 ARRAY_SIZE(str_values));
1657 for (i = 0; i < ARRAY_SIZE(str_values); i++) {
1658 free(str_values[i]);
1661 /* Set Statistics column. */
1662 keys[0] = "stp_tx_count";
1663 int_values[0] = status.tx_count;
1664 keys[1] = "stp_rx_count";
1665 int_values[1] = status.rx_count;
1666 keys[2] = "stp_error_count";
1667 int_values[2] = status.error_count;
1669 ovsrec_port_set_statistics(port->cfg, keys, int_values,
1670 ARRAY_SIZE(int_values));
1674 enable_system_stats(const struct ovsrec_open_vswitch *cfg)
1678 /* Use other-config:enable-system-stats by preference. */
1679 enable = get_ovsrec_key_value(&cfg->header_,
1680 &ovsrec_open_vswitch_col_other_config,
1681 "enable-statistics");
1683 return !strcmp(enable, "true");
1686 /* Disable by default. */
1691 refresh_system_stats(const struct ovsrec_open_vswitch *cfg)
1693 struct ovsdb_datum datum;
1697 if (enable_system_stats(cfg)) {
1698 get_system_stats(&stats);
1701 ovsdb_datum_from_shash(&datum, &stats);
1702 ovsdb_idl_txn_write(&cfg->header_, &ovsrec_open_vswitch_col_statistics,
1706 static inline const char *
1707 nx_role_to_str(enum nx_role role)
1712 case NX_ROLE_MASTER:
1717 return "*** INVALID ROLE ***";
1722 refresh_controller_status(void)
1726 const struct ovsrec_controller *cfg;
1730 /* Accumulate status for controllers on all bridges. */
1731 HMAP_FOR_EACH (br, node, &all_bridges) {
1732 ofproto_get_ofproto_controller_info(br->ofproto, &info);
1735 /* Update each controller in the database with current status. */
1736 OVSREC_CONTROLLER_FOR_EACH(cfg, idl) {
1737 struct ofproto_controller_info *cinfo =
1738 shash_find_data(&info, cfg->target);
1741 ovsrec_controller_set_is_connected(cfg, cinfo->is_connected);
1742 ovsrec_controller_set_role(cfg, nx_role_to_str(cinfo->role));
1743 ovsrec_controller_set_status(cfg, (char **) cinfo->pairs.keys,
1744 (char **) cinfo->pairs.values,
1747 ovsrec_controller_set_is_connected(cfg, false);
1748 ovsrec_controller_set_role(cfg, NULL);
1749 ovsrec_controller_set_status(cfg, NULL, NULL, 0);
1753 ofproto_free_ofproto_controller_info(&info);
1757 refresh_cfm_stats(void)
1759 static struct ovsdb_idl_txn *txn = NULL;
1764 txn = ovsdb_idl_txn_create(idl);
1766 HMAP_FOR_EACH (br, node, &all_bridges) {
1767 struct iface *iface;
1769 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
1770 iface_refresh_cfm_stats(iface);
1775 if (ovsdb_idl_txn_commit(txn) != TXN_INCOMPLETE) {
1776 ovsdb_idl_txn_destroy(txn);
1781 /* Performs periodic activity required by bridges that needs to be done with
1782 * the least possible latency.
1784 * It makes sense to call this function a couple of times per poll loop, to
1785 * provide a significant performance boost on some benchmarks with ofprotos
1786 * that use the ofproto-dpif implementation. */
1788 bridge_run_fast(void)
1792 HMAP_FOR_EACH (br, node, &all_bridges) {
1793 ofproto_run_fast(br->ofproto);
1800 const struct ovsrec_open_vswitch *cfg;
1802 bool database_changed;
1805 /* (Re)configure if necessary. */
1806 database_changed = ovsdb_idl_run(idl);
1807 if (ovsdb_idl_is_lock_contended(idl)) {
1808 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
1809 struct bridge *br, *next_br;
1811 VLOG_ERR_RL(&rl, "another ovs-vswitchd process is running, "
1812 "disabling this process until it goes away");
1814 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
1818 } else if (!ovsdb_idl_has_lock(idl)) {
1821 cfg = ovsrec_open_vswitch_first(idl);
1823 /* Let each bridge do the work that it needs to do. */
1824 HMAP_FOR_EACH (br, node, &all_bridges) {
1825 ofproto_run(br->ofproto);
1828 /* Re-configure SSL. We do this on every trip through the main loop,
1829 * instead of just when the database changes, because the contents of the
1830 * key and certificate files can change without the database changing.
1832 * We do this before bridge_reconfigure() because that function might
1833 * initiate SSL connections and thus requires SSL to be configured. */
1834 if (cfg && cfg->ssl) {
1835 const struct ovsrec_ssl *ssl = cfg->ssl;
1837 stream_ssl_set_key_and_cert(ssl->private_key, ssl->certificate);
1838 stream_ssl_set_ca_cert_file(ssl->ca_cert, ssl->bootstrap_ca_cert);
1841 if (database_changed) {
1843 struct ovsdb_idl_txn *txn = ovsdb_idl_txn_create(idl);
1845 bridge_reconfigure(cfg);
1847 ovsrec_open_vswitch_set_cur_cfg(cfg, cfg->next_cfg);
1848 ovsdb_idl_txn_commit(txn);
1849 ovsdb_idl_txn_destroy(txn); /* XXX */
1851 /* We still need to reconfigure to avoid dangling pointers to
1852 * now-destroyed ovsrec structures inside bridge data. */
1853 static const struct ovsrec_open_vswitch null_cfg;
1855 bridge_reconfigure(&null_cfg);
1859 /* Refresh system and interface stats if necessary. */
1860 if (time_msec() >= stats_timer) {
1862 struct ovsdb_idl_txn *txn;
1864 txn = ovsdb_idl_txn_create(idl);
1865 HMAP_FOR_EACH (br, node, &all_bridges) {
1868 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1869 struct iface *iface;
1871 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1872 iface_refresh_stats(iface);
1873 iface_refresh_status(iface);
1877 refresh_system_stats(cfg);
1878 refresh_controller_status();
1879 ovsdb_idl_txn_commit(txn);
1880 ovsdb_idl_txn_destroy(txn); /* XXX */
1883 stats_timer = time_msec() + STATS_INTERVAL;
1886 if (time_msec() >= db_limiter) {
1887 struct ovsdb_idl_txn *txn;
1889 txn = ovsdb_idl_txn_create(idl);
1890 HMAP_FOR_EACH (br, node, &all_bridges) {
1891 struct iface *iface;
1894 br_refresh_stp_status(br);
1896 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1897 port_refresh_stp_status(port);
1900 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
1901 const char *link_state;
1902 int64_t link_resets;
1905 if (iface_is_synthetic(iface)) {
1909 current = ofproto_port_is_lacp_current(br->ofproto,
1913 ovsrec_interface_set_lacp_current(iface->cfg, &bl, 1);
1915 ovsrec_interface_set_lacp_current(iface->cfg, NULL, 0);
1918 link_state = netdev_get_carrier(iface->netdev) ? "up" : "down";
1919 ovsrec_interface_set_link_state(iface->cfg, link_state);
1921 link_resets = netdev_get_carrier_resets(iface->netdev);
1922 ovsrec_interface_set_link_resets(iface->cfg, &link_resets, 1);
1926 if (ovsdb_idl_txn_commit(txn) != TXN_UNCHANGED) {
1927 db_limiter = time_msec() + DB_LIMIT_INTERVAL;
1929 ovsdb_idl_txn_destroy(txn);
1932 refresh_cfm_stats();
1938 ovsdb_idl_wait(idl);
1939 if (!hmap_is_empty(&all_bridges)) {
1942 HMAP_FOR_EACH (br, node, &all_bridges) {
1943 ofproto_wait(br->ofproto);
1945 poll_timer_wait_until(stats_timer);
1947 if (db_limiter > time_msec()) {
1948 poll_timer_wait_until(db_limiter);
1953 /* QoS unixctl user interface functions. */
1955 struct qos_unixctl_show_cbdata {
1957 struct iface *iface;
1961 qos_unixctl_show_cb(unsigned int queue_id,
1962 const struct shash *details,
1965 struct qos_unixctl_show_cbdata *data = aux;
1966 struct ds *ds = data->ds;
1967 struct iface *iface = data->iface;
1968 struct netdev_queue_stats stats;
1969 struct shash_node *node;
1972 ds_put_cstr(ds, "\n");
1974 ds_put_format(ds, "Queue %u:\n", queue_id);
1976 ds_put_cstr(ds, "Default:\n");
1979 SHASH_FOR_EACH (node, details) {
1980 ds_put_format(ds, "\t%s: %s\n", node->name, (char *)node->data);
1983 error = netdev_get_queue_stats(iface->netdev, queue_id, &stats);
1985 if (stats.tx_packets != UINT64_MAX) {
1986 ds_put_format(ds, "\ttx_packets: %"PRIu64"\n", stats.tx_packets);
1989 if (stats.tx_bytes != UINT64_MAX) {
1990 ds_put_format(ds, "\ttx_bytes: %"PRIu64"\n", stats.tx_bytes);
1993 if (stats.tx_errors != UINT64_MAX) {
1994 ds_put_format(ds, "\ttx_errors: %"PRIu64"\n", stats.tx_errors);
1997 ds_put_format(ds, "\tFailed to get statistics for queue %u: %s",
1998 queue_id, strerror(error));
2003 qos_unixctl_show(struct unixctl_conn *conn,
2004 const char *args, void *aux OVS_UNUSED)
2006 struct ds ds = DS_EMPTY_INITIALIZER;
2007 struct shash sh = SHASH_INITIALIZER(&sh);
2008 struct iface *iface;
2010 struct shash_node *node;
2011 struct qos_unixctl_show_cbdata data;
2014 iface = iface_find(args);
2016 unixctl_command_reply(conn, 501, "no such interface");
2020 netdev_get_qos(iface->netdev, &type, &sh);
2022 if (*type != '\0') {
2023 ds_put_format(&ds, "QoS: %s %s\n", iface->name, type);
2025 SHASH_FOR_EACH (node, &sh) {
2026 ds_put_format(&ds, "%s: %s\n", node->name, (char *)node->data);
2031 error = netdev_dump_queues(iface->netdev, qos_unixctl_show_cb, &data);
2034 ds_put_format(&ds, "failed to dump queues: %s", strerror(error));
2036 unixctl_command_reply(conn, 200, ds_cstr(&ds));
2038 ds_put_format(&ds, "QoS not configured on %s\n", iface->name);
2039 unixctl_command_reply(conn, 501, ds_cstr(&ds));
2042 shash_destroy_free_data(&sh);
2046 /* Bridge reconfiguration functions. */
2048 bridge_create(const struct ovsrec_bridge *br_cfg)
2052 assert(!bridge_lookup(br_cfg->name));
2053 br = xzalloc(sizeof *br);
2055 br->name = xstrdup(br_cfg->name);
2056 br->type = xstrdup(ofproto_normalize_type(br_cfg->datapath_type));
2059 /* Derive the default Ethernet address from the bridge's UUID. This should
2060 * be unique and it will be stable between ovs-vswitchd runs. */
2061 memcpy(br->default_ea, &br_cfg->header_.uuid, ETH_ADDR_LEN);
2062 eth_addr_mark_random(br->default_ea);
2064 hmap_init(&br->ports);
2065 hmap_init(&br->ifaces);
2066 hmap_init(&br->iface_by_name);
2067 hmap_init(&br->mirrors);
2069 hmap_insert(&all_bridges, &br->node, hash_string(br->name, 0));
2073 bridge_destroy(struct bridge *br)
2076 struct mirror *mirror, *next_mirror;
2077 struct port *port, *next_port;
2079 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
2082 HMAP_FOR_EACH_SAFE (mirror, next_mirror, hmap_node, &br->mirrors) {
2083 mirror_destroy(mirror);
2085 hmap_remove(&all_bridges, &br->node);
2086 ofproto_destroy(br->ofproto);
2087 hmap_destroy(&br->ifaces);
2088 hmap_destroy(&br->ports);
2089 hmap_destroy(&br->iface_by_name);
2090 hmap_destroy(&br->mirrors);
2097 static struct bridge *
2098 bridge_lookup(const char *name)
2102 HMAP_FOR_EACH_WITH_HASH (br, node, hash_string(name, 0), &all_bridges) {
2103 if (!strcmp(br->name, name)) {
2110 /* Handle requests for a listing of all flows known by the OpenFlow
2111 * stack, including those normally hidden. */
2113 bridge_unixctl_dump_flows(struct unixctl_conn *conn,
2114 const char *args, void *aux OVS_UNUSED)
2119 br = bridge_lookup(args);
2121 unixctl_command_reply(conn, 501, "Unknown bridge");
2126 ofproto_get_all_flows(br->ofproto, &results);
2128 unixctl_command_reply(conn, 200, ds_cstr(&results));
2129 ds_destroy(&results);
2132 /* "bridge/reconnect [BRIDGE]": makes BRIDGE drop all of its controller
2133 * connections and reconnect. If BRIDGE is not specified, then all bridges
2134 * drop their controller connections and reconnect. */
2136 bridge_unixctl_reconnect(struct unixctl_conn *conn,
2137 const char *args, void *aux OVS_UNUSED)
2140 if (args[0] != '\0') {
2141 br = bridge_lookup(args);
2143 unixctl_command_reply(conn, 501, "Unknown bridge");
2146 ofproto_reconnect_controllers(br->ofproto);
2148 HMAP_FOR_EACH (br, node, &all_bridges) {
2149 ofproto_reconnect_controllers(br->ofproto);
2152 unixctl_command_reply(conn, 200, NULL);
2156 bridge_get_controllers(const struct bridge *br,
2157 struct ovsrec_controller ***controllersp)
2159 struct ovsrec_controller **controllers;
2160 size_t n_controllers;
2162 controllers = br->cfg->controller;
2163 n_controllers = br->cfg->n_controller;
2165 if (n_controllers == 1 && !strcmp(controllers[0]->target, "none")) {
2171 *controllersp = controllers;
2173 return n_controllers;
2176 /* Adds and deletes "struct port"s and "struct iface"s under 'br' to match
2177 * those configured in 'br->cfg'. */
2179 bridge_add_del_ports(struct bridge *br)
2181 struct port *port, *next;
2182 struct shash_node *node;
2183 struct shash new_ports;
2186 /* Collect new ports. */
2187 shash_init(&new_ports);
2188 for (i = 0; i < br->cfg->n_ports; i++) {
2189 const char *name = br->cfg->ports[i]->name;
2190 if (!shash_add_once(&new_ports, name, br->cfg->ports[i])) {
2191 VLOG_WARN("bridge %s: %s specified twice as bridge port",
2195 if (bridge_get_controllers(br, NULL)
2196 && !shash_find(&new_ports, br->name)) {
2197 VLOG_WARN("bridge %s: no port named %s, synthesizing one",
2198 br->name, br->name);
2200 br->synth_local_port.interfaces = &br->synth_local_ifacep;
2201 br->synth_local_port.n_interfaces = 1;
2202 br->synth_local_port.name = br->name;
2204 br->synth_local_iface.name = br->name;
2205 br->synth_local_iface.type = "internal";
2207 br->synth_local_ifacep = &br->synth_local_iface;
2209 shash_add(&new_ports, br->name, &br->synth_local_port);
2212 /* Get rid of deleted ports.
2213 * Get rid of deleted interfaces on ports that still exist.
2214 * Update 'cfg' of ports that still exist. */
2215 HMAP_FOR_EACH_SAFE (port, next, hmap_node, &br->ports) {
2216 port->cfg = shash_find_data(&new_ports, port->name);
2220 port_del_ifaces(port);
2224 /* Create new ports.
2225 * Add new interfaces to existing ports. */
2226 SHASH_FOR_EACH (node, &new_ports) {
2227 struct port *port = port_lookup(br, node->name);
2229 struct ovsrec_port *cfg = node->data;
2230 port = port_create(br, cfg);
2232 port_add_ifaces(port);
2233 if (list_is_empty(&port->ifaces)) {
2234 VLOG_WARN("bridge %s: port %s has no interfaces, dropping",
2235 br->name, port->name);
2239 shash_destroy(&new_ports);
2242 /* Initializes 'oc' appropriately as a management service controller for
2245 * The caller must free oc->target when it is no longer needed. */
2247 bridge_ofproto_controller_for_mgmt(const struct bridge *br,
2248 struct ofproto_controller *oc)
2250 oc->target = xasprintf("punix:%s/%s.mgmt", ovs_rundir(), br->name);
2251 oc->max_backoff = 0;
2252 oc->probe_interval = 60;
2253 oc->band = OFPROTO_OUT_OF_BAND;
2255 oc->burst_limit = 0;
2258 /* Converts ovsrec_controller 'c' into an ofproto_controller in 'oc'. */
2260 bridge_ofproto_controller_from_ovsrec(const struct ovsrec_controller *c,
2261 struct ofproto_controller *oc)
2263 oc->target = c->target;
2264 oc->max_backoff = c->max_backoff ? *c->max_backoff / 1000 : 8;
2265 oc->probe_interval = c->inactivity_probe ? *c->inactivity_probe / 1000 : 5;
2266 oc->band = (!c->connection_mode || !strcmp(c->connection_mode, "in-band")
2267 ? OFPROTO_IN_BAND : OFPROTO_OUT_OF_BAND);
2268 oc->rate_limit = c->controller_rate_limit ? *c->controller_rate_limit : 0;
2269 oc->burst_limit = (c->controller_burst_limit
2270 ? *c->controller_burst_limit : 0);
2273 /* Configures the IP stack for 'br''s local interface properly according to the
2274 * configuration in 'c'. */
2276 bridge_configure_local_iface_netdev(struct bridge *br,
2277 struct ovsrec_controller *c)
2279 struct netdev *netdev;
2280 struct in_addr mask, gateway;
2282 struct iface *local_iface;
2285 /* If there's no local interface or no IP address, give up. */
2286 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
2287 if (!local_iface || !c->local_ip || !inet_aton(c->local_ip, &ip)) {
2291 /* Bring up the local interface. */
2292 netdev = local_iface->netdev;
2293 netdev_turn_flags_on(netdev, NETDEV_UP, true);
2295 /* Configure the IP address and netmask. */
2296 if (!c->local_netmask
2297 || !inet_aton(c->local_netmask, &mask)
2299 mask.s_addr = guess_netmask(ip.s_addr);
2301 if (!netdev_set_in4(netdev, ip, mask)) {
2302 VLOG_INFO("bridge %s: configured IP address "IP_FMT", netmask "IP_FMT,
2303 br->name, IP_ARGS(&ip.s_addr), IP_ARGS(&mask.s_addr));
2306 /* Configure the default gateway. */
2307 if (c->local_gateway
2308 && inet_aton(c->local_gateway, &gateway)
2309 && gateway.s_addr) {
2310 if (!netdev_add_router(netdev, gateway)) {
2311 VLOG_INFO("bridge %s: configured gateway "IP_FMT,
2312 br->name, IP_ARGS(&gateway.s_addr));
2317 /* Returns true if 'a' and 'b' are the same except that any number of slashes
2318 * in either string are treated as equal to any number of slashes in the other,
2319 * e.g. "x///y" is equal to "x/y". */
2321 equal_pathnames(const char *a, const char *b)
2325 a += strspn(a, "/");
2326 b += strspn(b, "/");
2327 } else if (*a == '\0') {
2338 bridge_configure_remotes(struct bridge *br,
2339 const struct sockaddr_in *managers, size_t n_managers)
2341 const char *disable_ib_str, *queue_id_str;
2342 bool disable_in_band = false;
2345 struct ovsrec_controller **controllers;
2346 size_t n_controllers;
2348 enum ofproto_fail_mode fail_mode;
2350 struct ofproto_controller *ocs;
2354 /* Check if we should disable in-band control on this bridge. */
2355 disable_ib_str = bridge_get_other_config(br->cfg, "disable-in-band");
2356 if (disable_ib_str && !strcmp(disable_ib_str, "true")) {
2357 disable_in_band = true;
2360 /* Set OpenFlow queue ID for in-band control. */
2361 queue_id_str = bridge_get_other_config(br->cfg, "in-band-queue");
2362 queue_id = queue_id_str ? strtol(queue_id_str, NULL, 10) : -1;
2363 ofproto_set_in_band_queue(br->ofproto, queue_id);
2365 if (disable_in_band) {
2366 ofproto_set_extra_in_band_remotes(br->ofproto, NULL, 0);
2368 ofproto_set_extra_in_band_remotes(br->ofproto, managers, n_managers);
2371 n_controllers = bridge_get_controllers(br, &controllers);
2373 ocs = xmalloc((n_controllers + 1) * sizeof *ocs);
2376 bridge_ofproto_controller_for_mgmt(br, &ocs[n_ocs++]);
2377 for (i = 0; i < n_controllers; i++) {
2378 struct ovsrec_controller *c = controllers[i];
2380 if (!strncmp(c->target, "punix:", 6)
2381 || !strncmp(c->target, "unix:", 5)) {
2382 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2385 whitelist = xasprintf("unix:%s/%s.controller",
2386 ovs_rundir(), br->name);
2387 if (!equal_pathnames(c->target, whitelist)) {
2388 /* Prevent remote ovsdb-server users from accessing arbitrary
2389 * Unix domain sockets and overwriting arbitrary local
2391 VLOG_ERR_RL(&rl, "bridge %s: Not adding Unix domain socket "
2392 "controller \"%s\" due to possibility for remote "
2393 "exploit. Instead, specify whitelisted \"%s\" or "
2394 "connect to \"unix:%s/%s.mgmt\" (which is always "
2395 "available without special configuration).",
2396 br->name, c->target, whitelist,
2397 ovs_rundir(), br->name);
2405 bridge_configure_local_iface_netdev(br, c);
2406 bridge_ofproto_controller_from_ovsrec(c, &ocs[n_ocs]);
2407 if (disable_in_band) {
2408 ocs[n_ocs].band = OFPROTO_OUT_OF_BAND;
2413 ofproto_set_controllers(br->ofproto, ocs, n_ocs);
2414 free(ocs[0].target); /* From bridge_ofproto_controller_for_mgmt(). */
2417 /* Set the fail-mode. */
2418 fail_mode = !br->cfg->fail_mode
2419 || !strcmp(br->cfg->fail_mode, "standalone")
2420 ? OFPROTO_FAIL_STANDALONE
2421 : OFPROTO_FAIL_SECURE;
2422 ofproto_set_fail_mode(br->ofproto, fail_mode);
2424 /* Configure OpenFlow controller connection snooping. */
2425 if (!ofproto_has_snoops(br->ofproto)) {
2429 sset_add_and_free(&snoops, xasprintf("punix:%s/%s.snoop",
2430 ovs_rundir(), br->name));
2431 ofproto_set_snoops(br->ofproto, &snoops);
2432 sset_destroy(&snoops);
2436 /* Port functions. */
2438 static struct port *
2439 port_create(struct bridge *br, const struct ovsrec_port *cfg)
2443 port = xzalloc(sizeof *port);
2445 port->name = xstrdup(cfg->name);
2447 list_init(&port->ifaces);
2449 hmap_insert(&br->ports, &port->hmap_node, hash_string(port->name, 0));
2451 VLOG_INFO("created port %s on bridge %s", port->name, br->name);
2457 get_port_other_config(const struct ovsrec_port *port, const char *key,
2458 const char *default_value)
2462 value = get_ovsrec_key_value(&port->header_, &ovsrec_port_col_other_config,
2464 return value ? value : default_value;
2468 get_interface_other_config(const struct ovsrec_interface *iface,
2469 const char *key, const char *default_value)
2473 value = get_ovsrec_key_value(&iface->header_,
2474 &ovsrec_interface_col_other_config, key);
2475 return value ? value : default_value;
2478 /* Deletes interfaces from 'port' that are no longer configured for it. */
2480 port_del_ifaces(struct port *port)
2482 struct iface *iface, *next;
2483 struct sset new_ifaces;
2486 /* Collect list of new interfaces. */
2487 sset_init(&new_ifaces);
2488 for (i = 0; i < port->cfg->n_interfaces; i++) {
2489 const char *name = port->cfg->interfaces[i]->name;
2490 const char *type = port->cfg->interfaces[i]->name;
2491 if (strcmp(type, "null")) {
2492 sset_add(&new_ifaces, name);
2496 /* Get rid of deleted interfaces. */
2497 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2498 if (!sset_contains(&new_ifaces, iface->name)) {
2499 iface_destroy(iface);
2503 sset_destroy(&new_ifaces);
2506 /* Adds new interfaces to 'port' and updates 'type' and 'cfg' members of
2509 port_add_ifaces(struct port *port)
2511 struct shash new_ifaces;
2512 struct shash_node *node;
2515 /* Collect new ifaces. */
2516 shash_init(&new_ifaces);
2517 for (i = 0; i < port->cfg->n_interfaces; i++) {
2518 const struct ovsrec_interface *cfg = port->cfg->interfaces[i];
2519 if (strcmp(cfg->type, "null")
2520 && !shash_add_once(&new_ifaces, cfg->name, cfg)) {
2521 VLOG_WARN("port %s: %s specified twice as port interface",
2522 port->name, cfg->name);
2523 iface_clear_db_record(cfg);
2527 /* Create new interfaces.
2528 * Update interface types and 'cfg' members. */
2529 SHASH_FOR_EACH (node, &new_ifaces) {
2530 const struct ovsrec_interface *cfg = node->data;
2531 const char *iface_name = node->name;
2532 struct iface *iface;
2534 iface = iface_lookup(port->bridge, iface_name);
2536 iface = iface_create(port, cfg);
2541 /* Determine interface type. The local port always has type
2542 * "internal". Other ports take their type from the database and
2543 * default to "system" if none is specified. */
2544 iface->type = (!strcmp(iface_name, port->bridge->name) ? "internal"
2545 : cfg->type[0] ? cfg->type
2548 shash_destroy(&new_ifaces);
2552 port_destroy(struct port *port)
2555 struct bridge *br = port->bridge;
2556 struct iface *iface, *next;
2559 ofproto_bundle_unregister(br->ofproto, port);
2562 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2563 iface_destroy(iface);
2566 hmap_remove(&br->ports, &port->hmap_node);
2568 VLOG_INFO("destroyed port %s on bridge %s", port->name, br->name);
2575 static struct port *
2576 port_lookup(const struct bridge *br, const char *name)
2580 HMAP_FOR_EACH_WITH_HASH (port, hmap_node, hash_string(name, 0),
2582 if (!strcmp(port->name, name)) {
2590 enable_lacp(struct port *port, bool *activep)
2592 if (!port->cfg->lacp) {
2593 /* XXX when LACP implementation has been sufficiently tested, enable by
2594 * default and make active on bonded ports. */
2596 } else if (!strcmp(port->cfg->lacp, "off")) {
2598 } else if (!strcmp(port->cfg->lacp, "active")) {
2601 } else if (!strcmp(port->cfg->lacp, "passive")) {
2605 VLOG_WARN("port %s: unknown LACP mode %s",
2606 port->name, port->cfg->lacp);
2611 static struct lacp_settings *
2612 port_configure_lacp(struct port *port, struct lacp_settings *s)
2614 const char *lacp_time, *system_id;
2615 long long int custom_time;
2618 if (!enable_lacp(port, &s->active)) {
2622 s->name = port->name;
2624 system_id = get_port_other_config(port->cfg, "lacp-system-id", NULL);
2626 || sscanf(system_id, ETH_ADDR_SCAN_FMT,
2627 ETH_ADDR_SCAN_ARGS(s->id)) != ETH_ADDR_SCAN_COUNT) {
2628 memcpy(s->id, port->bridge->ea, ETH_ADDR_LEN);
2631 /* Prefer bondable links if unspecified. */
2632 priority = atoi(get_port_other_config(port->cfg, "lacp-system-priority",
2634 s->priority = (priority > 0 && priority <= UINT16_MAX
2636 : UINT16_MAX - !list_is_short(&port->ifaces));
2638 s->heartbeat = !strcmp(get_port_other_config(port->cfg,
2643 lacp_time = get_port_other_config(port->cfg, "lacp-time", "slow");
2644 custom_time = atoi(lacp_time);
2645 if (!strcmp(lacp_time, "fast")) {
2646 s->lacp_time = LACP_TIME_FAST;
2647 } else if (!strcmp(lacp_time, "slow")) {
2648 s->lacp_time = LACP_TIME_SLOW;
2649 } else if (custom_time > 0) {
2650 s->lacp_time = LACP_TIME_CUSTOM;
2651 s->custom_time = custom_time;
2653 s->lacp_time = LACP_TIME_SLOW;
2660 iface_configure_lacp(struct iface *iface, struct lacp_slave_settings *s)
2662 int priority, portid, key;
2664 portid = atoi(get_interface_other_config(iface->cfg, "lacp-port-id", "0"));
2665 priority = atoi(get_interface_other_config(iface->cfg,
2666 "lacp-port-priority", "0"));
2667 key = atoi(get_interface_other_config(iface->cfg, "lacp-aggregation-key",
2670 if (portid <= 0 || portid > UINT16_MAX) {
2671 portid = iface->ofp_port;
2674 if (priority <= 0 || priority > UINT16_MAX) {
2675 priority = UINT16_MAX;
2678 if (key < 0 || key > UINT16_MAX) {
2682 s->name = iface->name;
2684 s->priority = priority;
2689 port_configure_bond(struct port *port, struct bond_settings *s,
2690 uint32_t *bond_stable_ids)
2692 const char *detect_s;
2693 struct iface *iface;
2694 int miimon_interval;
2697 s->name = port->name;
2698 s->balance = BM_SLB;
2699 if (port->cfg->bond_mode
2700 && !bond_mode_from_string(&s->balance, port->cfg->bond_mode)) {
2701 VLOG_WARN("port %s: unknown bond_mode %s, defaulting to %s",
2702 port->name, port->cfg->bond_mode,
2703 bond_mode_to_string(s->balance));
2705 if (s->balance == BM_SLB && port->bridge->cfg->n_flood_vlans) {
2706 VLOG_WARN("port %s: SLB bonds are incompatible with flood_vlans, "
2707 "please use another bond type or disable flood_vlans",
2711 miimon_interval = atoi(get_port_other_config(port->cfg,
2712 "bond-miimon-interval", "0"));
2713 if (miimon_interval <= 0) {
2714 miimon_interval = 200;
2717 detect_s = get_port_other_config(port->cfg, "bond-detect-mode", "carrier");
2718 if (!strcmp(detect_s, "carrier")) {
2719 miimon_interval = 0;
2720 } else if (strcmp(detect_s, "miimon")) {
2721 VLOG_WARN("port %s: unsupported bond-detect-mode %s, "
2722 "defaulting to carrier", port->name, detect_s);
2723 miimon_interval = 0;
2726 s->up_delay = MAX(0, port->cfg->bond_updelay);
2727 s->down_delay = MAX(0, port->cfg->bond_downdelay);
2728 s->basis = atoi(get_port_other_config(port->cfg, "bond-hash-basis", "0"));
2729 s->rebalance_interval = atoi(
2730 get_port_other_config(port->cfg, "bond-rebalance-interval", "10000"));
2731 if (s->rebalance_interval < 1000) {
2732 s->rebalance_interval = 1000;
2735 s->fake_iface = port->cfg->bond_fake_iface;
2738 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
2739 long long stable_id;
2741 stable_id = atoll(get_interface_other_config(iface->cfg,
2742 "bond-stable-id", "0"));
2743 if (stable_id <= 0 || stable_id >= UINT32_MAX) {
2744 stable_id = iface->ofp_port;
2746 bond_stable_ids[i++] = stable_id;
2748 netdev_set_miimon_interval(iface->netdev, miimon_interval);
2752 /* Returns true if 'port' is synthetic, that is, if we constructed it locally
2753 * instead of obtaining it from the database. */
2755 port_is_synthetic(const struct port *port)
2757 return ovsdb_idl_row_is_synthetic(&port->cfg->header_);
2760 /* Interface functions. */
2762 static struct iface *
2763 iface_create(struct port *port, const struct ovsrec_interface *if_cfg)
2765 struct bridge *br = port->bridge;
2766 struct iface *iface;
2767 char *name = if_cfg->name;
2769 iface = xzalloc(sizeof *iface);
2771 iface->name = xstrdup(name);
2772 iface->ofp_port = -1;
2773 iface->tag = tag_create_random();
2774 iface->netdev = NULL;
2775 iface->cfg = if_cfg;
2777 hmap_insert(&br->iface_by_name, &iface->name_node, hash_string(name, 0));
2779 list_push_back(&port->ifaces, &iface->port_elem);
2781 VLOG_DBG("attached network device %s to port %s", iface->name, port->name);
2787 iface_destroy(struct iface *iface)
2790 struct port *port = iface->port;
2791 struct bridge *br = port->bridge;
2793 if (br->ofproto && iface->ofp_port >= 0) {
2794 ofproto_port_unregister(br->ofproto, iface->ofp_port);
2797 if (iface->ofp_port >= 0) {
2798 hmap_remove(&br->ifaces, &iface->ofp_port_node);
2801 list_remove(&iface->port_elem);
2802 hmap_remove(&br->iface_by_name, &iface->name_node);
2804 netdev_close(iface->netdev);
2811 static struct iface *
2812 iface_lookup(const struct bridge *br, const char *name)
2814 struct iface *iface;
2816 HMAP_FOR_EACH_WITH_HASH (iface, name_node, hash_string(name, 0),
2817 &br->iface_by_name) {
2818 if (!strcmp(iface->name, name)) {
2826 static struct iface *
2827 iface_find(const char *name)
2829 const struct bridge *br;
2831 HMAP_FOR_EACH (br, node, &all_bridges) {
2832 struct iface *iface = iface_lookup(br, name);
2841 static struct iface *
2842 iface_from_ofp_port(const struct bridge *br, uint16_t ofp_port)
2844 struct iface *iface;
2846 HMAP_FOR_EACH_IN_BUCKET (iface, ofp_port_node,
2847 hash_int(ofp_port, 0), &br->ifaces) {
2848 if (iface->ofp_port == ofp_port) {
2855 /* Set Ethernet address of 'iface', if one is specified in the configuration
2858 iface_set_mac(struct iface *iface)
2860 uint8_t ea[ETH_ADDR_LEN];
2862 if (!strcmp(iface->type, "internal")
2863 && iface->cfg->mac && eth_addr_from_string(iface->cfg->mac, ea)) {
2864 if (iface->ofp_port == OFPP_LOCAL) {
2865 VLOG_ERR("interface %s: ignoring mac in Interface record "
2866 "(use Bridge record to set local port's mac)",
2868 } else if (eth_addr_is_multicast(ea)) {
2869 VLOG_ERR("interface %s: cannot set MAC to multicast address",
2872 int error = netdev_set_etheraddr(iface->netdev, ea);
2874 VLOG_ERR("interface %s: setting MAC failed (%s)",
2875 iface->name, strerror(error));
2881 /* Sets the ofport column of 'if_cfg' to 'ofport'. */
2883 iface_set_ofport(const struct ovsrec_interface *if_cfg, int64_t ofport)
2885 if (if_cfg && !ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
2886 ovsrec_interface_set_ofport(if_cfg, &ofport, 1);
2890 /* Clears all of the fields in 'if_cfg' that indicate interface status, and
2891 * sets the "ofport" field to -1.
2893 * This is appropriate when 'if_cfg''s interface cannot be created or is
2894 * otherwise invalid. */
2896 iface_clear_db_record(const struct ovsrec_interface *if_cfg)
2898 if (!ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
2899 iface_set_ofport(if_cfg, -1);
2900 ovsrec_interface_set_status(if_cfg, NULL, NULL, 0);
2901 ovsrec_interface_set_admin_state(if_cfg, NULL);
2902 ovsrec_interface_set_duplex(if_cfg, NULL);
2903 ovsrec_interface_set_link_speed(if_cfg, NULL, 0);
2904 ovsrec_interface_set_link_state(if_cfg, NULL);
2905 ovsrec_interface_set_mtu(if_cfg, NULL, 0);
2906 ovsrec_interface_set_cfm_fault(if_cfg, NULL, 0);
2907 ovsrec_interface_set_cfm_remote_mpids(if_cfg, NULL, 0);
2908 ovsrec_interface_set_lacp_current(if_cfg, NULL, 0);
2909 ovsrec_interface_set_statistics(if_cfg, NULL, NULL, 0);
2913 /* Adds the 'n' key-value pairs in 'keys' in 'values' to 'shash'.
2915 * The value strings in '*shash' are taken directly from values[], not copied,
2916 * so the caller should not modify or free them. */
2918 shash_from_ovs_idl_map(char **keys, char **values, size_t n,
2919 struct shash *shash)
2924 for (i = 0; i < n; i++) {
2925 shash_add(shash, keys[i], values[i]);
2929 /* Creates 'keys' and 'values' arrays from 'shash'.
2931 * Sets 'keys' and 'values' to heap allocated arrays representing the key-value
2932 * pairs in 'shash'. The caller takes ownership of 'keys' and 'values'. They
2933 * are populated with with strings taken directly from 'shash' and thus have
2934 * the same ownership of the key-value pairs in shash.
2937 shash_to_ovs_idl_map(struct shash *shash,
2938 char ***keys, char ***values, size_t *n)
2942 struct shash_node *sn;
2944 count = shash_count(shash);
2946 k = xmalloc(count * sizeof *k);
2947 v = xmalloc(count * sizeof *v);
2950 SHASH_FOR_EACH(sn, shash) {
2961 struct iface_delete_queues_cbdata {
2962 struct netdev *netdev;
2963 const struct ovsdb_datum *queues;
2967 queue_ids_include(const struct ovsdb_datum *queues, int64_t target)
2969 union ovsdb_atom atom;
2971 atom.integer = target;
2972 return ovsdb_datum_find_key(queues, &atom, OVSDB_TYPE_INTEGER) != UINT_MAX;
2976 iface_delete_queues(unsigned int queue_id,
2977 const struct shash *details OVS_UNUSED, void *cbdata_)
2979 struct iface_delete_queues_cbdata *cbdata = cbdata_;
2981 if (!queue_ids_include(cbdata->queues, queue_id)) {
2982 netdev_delete_queue(cbdata->netdev, queue_id);
2987 iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos)
2989 if (!qos || qos->type[0] == '\0' || qos->n_queues < 1) {
2990 netdev_set_qos(iface->netdev, NULL, NULL);
2992 struct iface_delete_queues_cbdata cbdata;
2993 struct shash details;
2997 /* Configure top-level Qos for 'iface'. */
2998 shash_from_ovs_idl_map(qos->key_other_config, qos->value_other_config,
2999 qos->n_other_config, &details);
3000 netdev_set_qos(iface->netdev, qos->type, &details);
3001 shash_destroy(&details);
3003 /* Deconfigure queues that were deleted. */
3004 cbdata.netdev = iface->netdev;
3005 cbdata.queues = ovsrec_qos_get_queues(qos, OVSDB_TYPE_INTEGER,
3007 netdev_dump_queues(iface->netdev, iface_delete_queues, &cbdata);
3009 /* Configure queues for 'iface'. */
3011 for (i = 0; i < qos->n_queues; i++) {
3012 const struct ovsrec_queue *queue = qos->value_queues[i];
3013 unsigned int queue_id = qos->key_queues[i];
3015 if (queue_id == 0) {
3019 shash_from_ovs_idl_map(queue->key_other_config,
3020 queue->value_other_config,
3021 queue->n_other_config, &details);
3022 netdev_set_queue(iface->netdev, queue_id, &details);
3023 shash_destroy(&details);
3026 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
3027 VLOG_WARN_RL(&rl, "interface %s: QoS configured without a default "
3028 "queue (queue 0). Using default configuration.",
3031 shash_init(&details);
3032 netdev_set_queue(iface->netdev, 0, &details);
3033 shash_destroy(&details);
3037 netdev_set_policing(iface->netdev,
3038 iface->cfg->ingress_policing_rate,
3039 iface->cfg->ingress_policing_burst);
3043 iface_configure_cfm(struct iface *iface)
3045 const struct ovsrec_interface *cfg = iface->cfg;
3046 const char *extended_str, *opstate_str;
3047 struct cfm_settings s;
3049 if (!cfg->n_cfm_mpid) {
3050 ofproto_port_clear_cfm(iface->port->bridge->ofproto, iface->ofp_port);
3054 s.mpid = *cfg->cfm_mpid;
3055 s.interval = atoi(get_interface_other_config(iface->cfg, "cfm_interval",
3057 if (s.interval <= 0) {
3061 extended_str = get_interface_other_config(iface->cfg, "cfm_extended",
3063 s.extended = !strcasecmp("true", extended_str);
3065 opstate_str = get_interface_other_config(iface->cfg, "cfm_opstate", "up");
3066 s.opup = !strcasecmp("up", opstate_str);
3068 ofproto_port_set_cfm(iface->port->bridge->ofproto, iface->ofp_port, &s);
3071 /* Returns true if 'iface' is synthetic, that is, if we constructed it locally
3072 * instead of obtaining it from the database. */
3074 iface_is_synthetic(const struct iface *iface)
3076 return ovsdb_idl_row_is_synthetic(&iface->cfg->header_);
3079 /* Port mirroring. */
3081 static struct mirror *
3082 mirror_find_by_uuid(struct bridge *br, const struct uuid *uuid)
3086 HMAP_FOR_EACH_IN_BUCKET (m, hmap_node, uuid_hash(uuid), &br->mirrors) {
3087 if (uuid_equals(uuid, &m->uuid)) {
3095 bridge_configure_mirrors(struct bridge *br)
3097 const struct ovsdb_datum *mc;
3098 unsigned long *flood_vlans;
3099 struct mirror *m, *next;
3102 /* Get rid of deleted mirrors. */
3103 mc = ovsrec_bridge_get_mirrors(br->cfg, OVSDB_TYPE_UUID);
3104 HMAP_FOR_EACH_SAFE (m, next, hmap_node, &br->mirrors) {
3105 union ovsdb_atom atom;
3107 atom.uuid = m->uuid;
3108 if (ovsdb_datum_find_key(mc, &atom, OVSDB_TYPE_UUID) == UINT_MAX) {
3113 /* Add new mirrors and reconfigure existing ones. */
3114 for (i = 0; i < br->cfg->n_mirrors; i++) {
3115 const struct ovsrec_mirror *cfg = br->cfg->mirrors[i];
3116 struct mirror *m = mirror_find_by_uuid(br, &cfg->header_.uuid);
3118 m = mirror_create(br, cfg);
3120 if (!mirror_configure(m, cfg)) {
3125 /* Update flooded vlans (for RSPAN). */
3126 flood_vlans = vlan_bitmap_from_array(br->cfg->flood_vlans,
3127 br->cfg->n_flood_vlans);
3128 ofproto_set_flood_vlans(br->ofproto, flood_vlans);
3129 bitmap_free(flood_vlans);
3132 static struct mirror *
3133 mirror_create(struct bridge *br, const struct ovsrec_mirror *cfg)
3137 m = xzalloc(sizeof *m);
3138 m->uuid = cfg->header_.uuid;
3139 hmap_insert(&br->mirrors, &m->hmap_node, uuid_hash(&m->uuid));
3141 m->name = xstrdup(cfg->name);
3147 mirror_destroy(struct mirror *m)
3150 struct bridge *br = m->bridge;
3153 ofproto_mirror_unregister(br->ofproto, m);
3156 hmap_remove(&br->mirrors, &m->hmap_node);
3163 mirror_collect_ports(struct mirror *m,
3164 struct ovsrec_port **in_ports, int n_in_ports,
3165 void ***out_portsp, size_t *n_out_portsp)
3167 void **out_ports = xmalloc(n_in_ports * sizeof *out_ports);
3168 size_t n_out_ports = 0;
3171 for (i = 0; i < n_in_ports; i++) {
3172 const char *name = in_ports[i]->name;
3173 struct port *port = port_lookup(m->bridge, name);
3175 out_ports[n_out_ports++] = port;
3177 VLOG_WARN("bridge %s: mirror %s cannot match on nonexistent "
3178 "port %s", m->bridge->name, m->name, name);
3181 *out_portsp = out_ports;
3182 *n_out_portsp = n_out_ports;
3186 mirror_configure(struct mirror *m, const struct ovsrec_mirror *cfg)
3188 struct ofproto_mirror_settings s;
3191 if (strcmp(cfg->name, m->name)) {
3193 m->name = xstrdup(cfg->name);
3197 /* Get output port or VLAN. */
3198 if (cfg->output_port) {
3199 s.out_bundle = port_lookup(m->bridge, cfg->output_port->name);
3200 if (!s.out_bundle) {
3201 VLOG_ERR("bridge %s: mirror %s outputs to port not on bridge",
3202 m->bridge->name, m->name);
3205 s.out_vlan = UINT16_MAX;
3207 if (cfg->output_vlan) {
3208 VLOG_ERR("bridge %s: mirror %s specifies both output port and "
3209 "output vlan; ignoring output vlan",
3210 m->bridge->name, m->name);
3212 } else if (cfg->output_vlan) {
3213 /* The database should prevent invalid VLAN values. */
3214 s.out_bundle = NULL;
3215 s.out_vlan = *cfg->output_vlan;
3217 VLOG_ERR("bridge %s: mirror %s does not specify output; ignoring",
3218 m->bridge->name, m->name);
3222 /* Get port selection. */
3223 if (cfg->select_all) {
3224 size_t n_ports = hmap_count(&m->bridge->ports);
3225 void **ports = xmalloc(n_ports * sizeof *ports);
3230 HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) {
3240 /* Get ports, dropping ports that don't exist.
3241 * The IDL ensures that there are no duplicates. */
3242 mirror_collect_ports(m, cfg->select_src_port, cfg->n_select_src_port,
3243 &s.srcs, &s.n_srcs);
3244 mirror_collect_ports(m, cfg->select_dst_port, cfg->n_select_dst_port,
3245 &s.dsts, &s.n_dsts);
3248 /* Get VLAN selection. */
3249 s.src_vlans = vlan_bitmap_from_array(cfg->select_vlan, cfg->n_select_vlan);
3252 ofproto_mirror_register(m->bridge->ofproto, m, &s);
3255 if (s.srcs != s.dsts) {