1 /* Copyright (c) 2008, 2009, 2010, 2011, 2012 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"
44 #include "stream-ssl.h"
46 #include "system-stats.h"
51 #include "vswitchd/vswitch-idl.h"
52 #include "xenserver.h"
54 #include "sflow_api.h"
55 #include "vlan-bitmap.h"
57 VLOG_DEFINE_THIS_MODULE(bridge);
59 COVERAGE_DEFINE(bridge_reconfigure);
62 /* These members are always valid. */
63 struct list port_elem; /* Element in struct port's "ifaces" list. */
64 struct hmap_node name_node; /* In struct bridge's "iface_by_name" hmap. */
65 struct port *port; /* Containing port. */
66 char *name; /* Host network device name. */
67 tag_type tag; /* Tag associated with this interface. */
69 /* These members are valid only after bridge_reconfigure() causes them to
71 struct hmap_node ofp_port_node; /* In struct bridge's "ifaces" hmap. */
72 int ofp_port; /* OpenFlow port number, -1 if unknown. */
73 struct netdev *netdev; /* Network device. */
74 const char *type; /* Usually same as cfg->type. */
75 const struct ovsrec_interface *cfg;
79 struct uuid uuid; /* UUID of this "mirror" record in database. */
80 struct hmap_node hmap_node; /* In struct bridge's "mirrors" hmap. */
81 struct bridge *bridge;
83 const struct ovsrec_mirror *cfg;
87 struct bridge *bridge;
88 struct hmap_node hmap_node; /* Element in struct bridge's "ports" hmap. */
91 const struct ovsrec_port *cfg;
93 /* An ordinary bridge port has 1 interface.
94 * A bridge port for bonding has at least 2 interfaces. */
95 struct list ifaces; /* List of "struct iface"s. */
99 struct hmap_node node; /* In 'all_bridges'. */
100 char *name; /* User-specified arbitrary name. */
101 char *type; /* Datapath type. */
102 uint8_t ea[ETH_ADDR_LEN]; /* Bridge Ethernet Address. */
103 uint8_t default_ea[ETH_ADDR_LEN]; /* Default MAC. */
104 const struct ovsrec_bridge *cfg;
106 /* OpenFlow switch processing. */
107 struct ofproto *ofproto; /* OpenFlow switch. */
110 struct hmap ports; /* "struct port"s indexed by name. */
111 struct hmap ifaces; /* "struct iface"s indexed by ofp_port. */
112 struct hmap iface_by_name; /* "struct iface"s indexed by name. */
114 /* Port mirroring. */
115 struct hmap mirrors; /* "struct mirror" indexed by UUID. */
117 /* Synthetic local port if necessary. */
118 struct ovsrec_port synth_local_port;
119 struct ovsrec_interface synth_local_iface;
120 struct ovsrec_interface *synth_local_ifacep;
123 /* All bridges, indexed by name. */
124 static struct hmap all_bridges = HMAP_INITIALIZER(&all_bridges);
126 /* OVSDB IDL used to obtain configuration. */
127 static struct ovsdb_idl *idl;
129 /* Each time this timer expires, the bridge fetches systems and interface
130 * statistics and pushes them into the database. */
131 #define STATS_INTERVAL (5 * 1000) /* In milliseconds. */
132 static long long int stats_timer = LLONG_MIN;
134 /* Stores the time after which rate limited statistics may be written to the
135 * database. Only updated when changes to the database require rate limiting.
137 #define DB_LIMIT_INTERVAL (1 * 1000) /* In milliseconds. */
138 static long long int db_limiter = LLONG_MIN;
140 static void add_del_bridges(const struct ovsrec_open_vswitch *);
141 static void bridge_del_ofprotos(void);
142 static bool bridge_add_ofprotos(struct bridge *);
143 static void bridge_create(const struct ovsrec_bridge *);
144 static void bridge_destroy(struct bridge *);
145 static struct bridge *bridge_lookup(const char *name);
146 static unixctl_cb_func bridge_unixctl_dump_flows;
147 static unixctl_cb_func bridge_unixctl_reconnect;
148 static size_t bridge_get_controllers(const struct bridge *br,
149 struct ovsrec_controller ***controllersp);
150 static void bridge_add_del_ports(struct bridge *,
151 const unsigned long int *splinter_vlans);
152 static void bridge_add_ofproto_ports(struct bridge *);
153 static void bridge_del_ofproto_ports(struct bridge *);
154 static void bridge_refresh_ofp_port(struct bridge *);
155 static void bridge_configure_datapath_id(struct bridge *);
156 static void bridge_configure_flow_eviction_threshold(struct bridge *);
157 static void bridge_configure_netflow(struct bridge *);
158 static void bridge_configure_forward_bpdu(struct bridge *);
159 static void bridge_configure_sflow(struct bridge *, int *sflow_bridge_number);
160 static void bridge_configure_stp(struct bridge *);
161 static void bridge_configure_remotes(struct bridge *,
162 const struct sockaddr_in *managers,
164 static void bridge_pick_local_hw_addr(struct bridge *,
165 uint8_t ea[ETH_ADDR_LEN],
166 struct iface **hw_addr_iface);
167 static uint64_t bridge_pick_datapath_id(struct bridge *,
168 const uint8_t bridge_ea[ETH_ADDR_LEN],
169 struct iface *hw_addr_iface);
170 static const char *bridge_get_other_config(const struct ovsrec_bridge *,
172 static const char *get_port_other_config(const struct ovsrec_port *,
174 const char *default_value);
175 static uint64_t dpid_from_hash(const void *, size_t nbytes);
176 static bool bridge_has_bond_fake_iface(const struct bridge *,
178 static bool port_is_bond_fake_iface(const struct port *);
180 static unixctl_cb_func qos_unixctl_show;
182 static struct port *port_create(struct bridge *, const struct ovsrec_port *);
183 static void port_add_ifaces(struct port *);
184 static void port_del_ifaces(struct port *);
185 static void port_destroy(struct port *);
186 static struct port *port_lookup(const struct bridge *, const char *name);
187 static void port_configure(struct port *);
188 static struct lacp_settings *port_configure_lacp(struct port *,
189 struct lacp_settings *);
190 static void port_configure_bond(struct port *, struct bond_settings *,
191 uint32_t *bond_stable_ids);
192 static bool port_is_synthetic(const struct port *);
194 static void bridge_configure_mirrors(struct bridge *);
195 static struct mirror *mirror_create(struct bridge *,
196 const struct ovsrec_mirror *);
197 static void mirror_destroy(struct mirror *);
198 static bool mirror_configure(struct mirror *);
199 static void mirror_refresh_stats(struct mirror *);
201 static void iface_configure_lacp(struct iface *, struct lacp_slave_settings *);
202 static struct iface *iface_create(struct port *port,
203 const struct ovsrec_interface *if_cfg);
204 static void iface_destroy(struct iface *);
205 static struct iface *iface_lookup(const struct bridge *, const char *name);
206 static struct iface *iface_find(const char *name);
207 static struct iface *iface_from_ofp_port(const struct bridge *,
209 static void iface_set_mac(struct iface *);
210 static void iface_set_ofport(const struct ovsrec_interface *, int64_t ofport);
211 static void iface_clear_db_record(const struct ovsrec_interface *if_cfg);
212 static void iface_configure_qos(struct iface *, const struct ovsrec_qos *);
213 static void iface_configure_cfm(struct iface *);
214 static void iface_refresh_cfm_stats(struct iface *);
215 static void iface_refresh_stats(struct iface *);
216 static void iface_refresh_status(struct iface *);
217 static bool iface_is_synthetic(const struct iface *);
218 static const char *get_interface_other_config(const struct ovsrec_interface *,
220 const char *default_value);
222 static void shash_from_ovs_idl_map(char **keys, char **values, size_t n,
224 static void shash_to_ovs_idl_map(struct shash *,
225 char ***keys, char ***values, size_t *n);
227 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
229 * This is deprecated. It is only for compatibility with broken device drivers
230 * in old versions of Linux that do not properly support VLANs when VLAN
231 * devices are not used. When broken device drivers are no longer in
232 * widespread use, we will delete these interfaces. */
234 /* True if VLAN splinters are enabled on any interface, false otherwise.*/
235 static bool vlan_splinters_enabled_anywhere;
237 static bool vlan_splinters_is_enabled(const struct ovsrec_interface *);
238 static unsigned long int *collect_splinter_vlans(
239 const struct ovsrec_open_vswitch *);
240 static void configure_splinter_port(struct port *);
241 static void add_vlan_splinter_ports(struct bridge *,
242 const unsigned long int *splinter_vlans,
243 struct shash *ports);
245 /* Public functions. */
247 /* Initializes the bridge module, configuring it to obtain its configuration
248 * from an OVSDB server accessed over 'remote', which should be a string in a
249 * form acceptable to ovsdb_idl_create(). */
251 bridge_init(const char *remote)
253 /* Create connection to database. */
254 idl = ovsdb_idl_create(remote, &ovsrec_idl_class, true);
255 ovsdb_idl_set_lock(idl, "ovs_vswitchd");
257 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_cur_cfg);
258 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_statistics);
259 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_external_ids);
260 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_ovs_version);
261 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_db_version);
262 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_type);
263 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_version);
265 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_datapath_id);
266 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_status);
267 ovsdb_idl_omit(idl, &ovsrec_bridge_col_external_ids);
269 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_status);
270 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_statistics);
271 ovsdb_idl_omit(idl, &ovsrec_port_col_external_ids);
272 ovsdb_idl_omit(idl, &ovsrec_port_col_fake_bridge);
274 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_admin_state);
275 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_duplex);
276 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_speed);
277 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_state);
278 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_resets);
279 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mtu);
280 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ofport);
281 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_statistics);
282 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_status);
283 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault);
284 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_remote_mpids);
285 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_lacp_current);
286 ovsdb_idl_omit(idl, &ovsrec_interface_col_external_ids);
288 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_is_connected);
289 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_role);
290 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_status);
291 ovsdb_idl_omit(idl, &ovsrec_controller_col_external_ids);
293 ovsdb_idl_omit(idl, &ovsrec_qos_col_external_ids);
295 ovsdb_idl_omit(idl, &ovsrec_queue_col_external_ids);
297 ovsdb_idl_omit(idl, &ovsrec_mirror_col_external_ids);
298 ovsdb_idl_omit_alert(idl, &ovsrec_mirror_col_statistics);
300 ovsdb_idl_omit(idl, &ovsrec_netflow_col_external_ids);
302 ovsdb_idl_omit(idl, &ovsrec_sflow_col_external_ids);
304 ovsdb_idl_omit(idl, &ovsrec_manager_col_external_ids);
305 ovsdb_idl_omit(idl, &ovsrec_manager_col_inactivity_probe);
306 ovsdb_idl_omit(idl, &ovsrec_manager_col_is_connected);
307 ovsdb_idl_omit(idl, &ovsrec_manager_col_max_backoff);
308 ovsdb_idl_omit(idl, &ovsrec_manager_col_status);
310 ovsdb_idl_omit(idl, &ovsrec_ssl_col_external_ids);
312 /* Register unixctl commands. */
313 unixctl_command_register("qos/show", "interface", 1, 1,
314 qos_unixctl_show, NULL);
315 unixctl_command_register("bridge/dump-flows", "bridge", 1, 1,
316 bridge_unixctl_dump_flows, NULL);
317 unixctl_command_register("bridge/reconnect", "[bridge]", 0, 1,
318 bridge_unixctl_reconnect, NULL);
327 struct bridge *br, *next_br;
329 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
332 ovsdb_idl_destroy(idl);
335 /* Looks at the list of managers in 'ovs_cfg' and extracts their remote IP
336 * addresses and ports into '*managersp' and '*n_managersp'. The caller is
337 * responsible for freeing '*managersp' (with free()).
339 * You may be asking yourself "why does ovs-vswitchd care?", because
340 * ovsdb-server is responsible for connecting to the managers, and ovs-vswitchd
341 * should not be and in fact is not directly involved in that. But
342 * ovs-vswitchd needs to make sure that ovsdb-server can reach the managers, so
343 * it has to tell in-band control where the managers are to enable that.
344 * (Thus, only managers connected in-band are collected.)
347 collect_in_band_managers(const struct ovsrec_open_vswitch *ovs_cfg,
348 struct sockaddr_in **managersp, size_t *n_managersp)
350 struct sockaddr_in *managers = NULL;
351 size_t n_managers = 0;
355 /* Collect all of the potential targets from the "targets" columns of the
356 * rows pointed to by "manager_options", excluding any that are
359 for (i = 0; i < ovs_cfg->n_manager_options; i++) {
360 struct ovsrec_manager *m = ovs_cfg->manager_options[i];
362 if (m->connection_mode && !strcmp(m->connection_mode, "out-of-band")) {
363 sset_find_and_delete(&targets, m->target);
365 sset_add(&targets, m->target);
369 /* Now extract the targets' IP addresses. */
370 if (!sset_is_empty(&targets)) {
373 managers = xmalloc(sset_count(&targets) * sizeof *managers);
374 SSET_FOR_EACH (target, &targets) {
375 struct sockaddr_in *sin = &managers[n_managers];
377 if (stream_parse_target_with_default_ports(target,
385 sset_destroy(&targets);
387 *managersp = managers;
388 *n_managersp = n_managers;
392 bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
394 unsigned long int *splinter_vlans;
395 struct sockaddr_in *managers;
396 struct bridge *br, *next;
397 int sflow_bridge_number;
400 COVERAGE_INC(bridge_reconfigure);
402 /* Create and destroy "struct bridge"s, "struct port"s, and "struct
403 * iface"s according to 'ovs_cfg', with only very minimal configuration
406 * This is mostly an update to bridge data structures. Very little is
407 * pushed down to ofproto or lower layers. */
408 add_del_bridges(ovs_cfg);
409 splinter_vlans = collect_splinter_vlans(ovs_cfg);
410 HMAP_FOR_EACH (br, node, &all_bridges) {
411 bridge_add_del_ports(br, splinter_vlans);
413 free(splinter_vlans);
415 /* Delete all datapaths and datapath ports that are no longer configured.
417 * The kernel will reject any attempt to add a given port to a datapath if
418 * that port already belongs to a different datapath, so we must do all
419 * port deletions before any port additions. A datapath always has a
420 * "local port" so we must delete not-configured datapaths too. */
421 bridge_del_ofprotos();
422 HMAP_FOR_EACH (br, node, &all_bridges) {
424 bridge_del_ofproto_ports(br);
428 /* Create datapaths and datapath ports that are missing.
430 * After this is done, we have our final set of bridges, ports, and
431 * interfaces. Every "struct bridge" has an ofproto, every "struct port"
432 * has at least one iface, every "struct iface" has a valid ofp_port and
434 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
435 if (!br->ofproto && !bridge_add_ofprotos(br)) {
439 HMAP_FOR_EACH (br, node, &all_bridges) {
440 bridge_refresh_ofp_port(br);
441 bridge_add_ofproto_ports(br);
444 /* Complete the configuration. */
445 sflow_bridge_number = 0;
446 collect_in_band_managers(ovs_cfg, &managers, &n_managers);
447 HMAP_FOR_EACH (br, node, &all_bridges) {
450 /* We need the datapath ID early to allow LACP ports to use it as the
451 * default system ID. */
452 bridge_configure_datapath_id(br);
454 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
457 port_configure(port);
459 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
460 iface_configure_cfm(iface);
461 iface_configure_qos(iface, port->cfg->qos);
462 iface_set_mac(iface);
465 bridge_configure_mirrors(br);
466 bridge_configure_flow_eviction_threshold(br);
467 bridge_configure_forward_bpdu(br);
468 bridge_configure_remotes(br, managers, n_managers);
469 bridge_configure_netflow(br);
470 bridge_configure_sflow(br, &sflow_bridge_number);
471 bridge_configure_stp(br);
475 /* ovs-vswitchd has completed initialization, so allow the process that
476 * forked us to exit successfully. */
477 daemonize_complete();
480 /* Iterate over all ofprotos and delete any of them that do not have a
481 * configured bridge or that are the wrong type. */
483 bridge_del_ofprotos(void)
491 ofproto_enumerate_types(&types);
492 SSET_FOR_EACH (type, &types) {
495 ofproto_enumerate_names(type, &names);
496 SSET_FOR_EACH (name, &names) {
497 struct bridge *br = bridge_lookup(name);
498 if (!br || strcmp(type, br->type)) {
499 ofproto_delete(name, type);
503 sset_destroy(&names);
504 sset_destroy(&types);
508 bridge_add_ofprotos(struct bridge *br)
510 int error = ofproto_create(br->name, br->type, &br->ofproto);
512 VLOG_ERR("failed to create bridge %s: %s", br->name, strerror(error));
519 port_configure(struct port *port)
521 const struct ovsrec_port *cfg = port->cfg;
522 struct bond_settings bond_settings;
523 struct lacp_settings lacp_settings;
524 struct ofproto_bundle_settings s;
527 if (cfg->vlan_mode && !strcmp(cfg->vlan_mode, "splinter")) {
528 configure_splinter_port(port);
537 s.slaves = xmalloc(list_size(&port->ifaces) * sizeof *s.slaves);
538 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
539 s.slaves[s.n_slaves++] = iface->ofp_port;
544 if (cfg->tag && *cfg->tag >= 0 && *cfg->tag <= 4095) {
548 /* Get VLAN trunks. */
551 s.trunks = vlan_bitmap_from_array(cfg->trunks, cfg->n_trunks);
555 if (cfg->vlan_mode) {
556 if (!strcmp(cfg->vlan_mode, "access")) {
557 s.vlan_mode = PORT_VLAN_ACCESS;
558 } else if (!strcmp(cfg->vlan_mode, "trunk")) {
559 s.vlan_mode = PORT_VLAN_TRUNK;
560 } else if (!strcmp(cfg->vlan_mode, "native-tagged")) {
561 s.vlan_mode = PORT_VLAN_NATIVE_TAGGED;
562 } else if (!strcmp(cfg->vlan_mode, "native-untagged")) {
563 s.vlan_mode = PORT_VLAN_NATIVE_UNTAGGED;
565 /* This "can't happen" because ovsdb-server should prevent it. */
566 VLOG_ERR("unknown VLAN mode %s", cfg->vlan_mode);
567 s.vlan_mode = PORT_VLAN_TRUNK;
571 s.vlan_mode = PORT_VLAN_ACCESS;
573 VLOG_ERR("port %s: ignoring trunks in favor of implicit vlan",
577 s.vlan_mode = PORT_VLAN_TRUNK;
580 s.use_priority_tags = !strcmp("true", get_port_other_config(
581 cfg, "priority-tags", ""));
583 /* Get LACP settings. */
584 s.lacp = port_configure_lacp(port, &lacp_settings);
588 s.lacp_slaves = xmalloc(s.n_slaves * sizeof *s.lacp_slaves);
589 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
590 iface_configure_lacp(iface, &s.lacp_slaves[i++]);
593 s.lacp_slaves = NULL;
596 /* Get bond settings. */
597 if (s.n_slaves > 1) {
598 s.bond = &bond_settings;
599 s.bond_stable_ids = xmalloc(s.n_slaves * sizeof *s.bond_stable_ids);
600 port_configure_bond(port, &bond_settings, s.bond_stable_ids);
603 s.bond_stable_ids = NULL;
605 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
606 netdev_set_miimon_interval(iface->netdev, 0);
611 ofproto_bundle_register(port->bridge->ofproto, port, &s);
617 free(s.bond_stable_ids);
620 /* Pick local port hardware address and datapath ID for 'br'. */
622 bridge_configure_datapath_id(struct bridge *br)
624 uint8_t ea[ETH_ADDR_LEN];
626 struct iface *local_iface;
627 struct iface *hw_addr_iface;
630 bridge_pick_local_hw_addr(br, ea, &hw_addr_iface);
631 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
633 int error = netdev_set_etheraddr(local_iface->netdev, ea);
635 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
636 VLOG_ERR_RL(&rl, "bridge %s: failed to set bridge "
637 "Ethernet address: %s",
638 br->name, strerror(error));
641 memcpy(br->ea, ea, ETH_ADDR_LEN);
643 dpid = bridge_pick_datapath_id(br, ea, hw_addr_iface);
644 ofproto_set_datapath_id(br->ofproto, dpid);
646 dpid_string = xasprintf("%016"PRIx64, dpid);
647 ovsrec_bridge_set_datapath_id(br->cfg, dpid_string);
651 /* Set NetFlow configuration on 'br'. */
653 bridge_configure_netflow(struct bridge *br)
655 struct ovsrec_netflow *cfg = br->cfg->netflow;
656 struct netflow_options opts;
659 ofproto_set_netflow(br->ofproto, NULL);
663 memset(&opts, 0, sizeof opts);
665 /* Get default NetFlow configuration from datapath.
666 * Apply overrides from 'cfg'. */
667 ofproto_get_netflow_ids(br->ofproto, &opts.engine_type, &opts.engine_id);
668 if (cfg->engine_type) {
669 opts.engine_type = *cfg->engine_type;
671 if (cfg->engine_id) {
672 opts.engine_id = *cfg->engine_id;
675 /* Configure active timeout interval. */
676 opts.active_timeout = cfg->active_timeout;
677 if (!opts.active_timeout) {
678 opts.active_timeout = -1;
679 } else if (opts.active_timeout < 0) {
680 VLOG_WARN("bridge %s: active timeout interval set to negative "
681 "value, using default instead (%d seconds)", br->name,
682 NF_ACTIVE_TIMEOUT_DEFAULT);
683 opts.active_timeout = -1;
686 /* Add engine ID to interface number to disambiguate bridgs? */
687 opts.add_id_to_iface = cfg->add_id_to_interface;
688 if (opts.add_id_to_iface) {
689 if (opts.engine_id > 0x7f) {
690 VLOG_WARN("bridge %s: NetFlow port mangling may conflict with "
691 "another vswitch, choose an engine id less than 128",
694 if (hmap_count(&br->ports) > 508) {
695 VLOG_WARN("bridge %s: NetFlow port mangling will conflict with "
696 "another port when more than 508 ports are used",
702 sset_init(&opts.collectors);
703 sset_add_array(&opts.collectors, cfg->targets, cfg->n_targets);
706 if (ofproto_set_netflow(br->ofproto, &opts)) {
707 VLOG_ERR("bridge %s: problem setting netflow collectors", br->name);
709 sset_destroy(&opts.collectors);
712 /* Set sFlow configuration on 'br'. */
714 bridge_configure_sflow(struct bridge *br, int *sflow_bridge_number)
716 const struct ovsrec_sflow *cfg = br->cfg->sflow;
717 struct ovsrec_controller **controllers;
718 struct ofproto_sflow_options oso;
719 size_t n_controllers;
723 ofproto_set_sflow(br->ofproto, NULL);
727 memset(&oso, 0, sizeof oso);
729 sset_init(&oso.targets);
730 sset_add_array(&oso.targets, cfg->targets, cfg->n_targets);
732 oso.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
734 oso.sampling_rate = *cfg->sampling;
737 oso.polling_interval = SFL_DEFAULT_POLLING_INTERVAL;
739 oso.polling_interval = *cfg->polling;
742 oso.header_len = SFL_DEFAULT_HEADER_SIZE;
744 oso.header_len = *cfg->header;
747 oso.sub_id = (*sflow_bridge_number)++;
748 oso.agent_device = cfg->agent;
750 oso.control_ip = NULL;
751 n_controllers = bridge_get_controllers(br, &controllers);
752 for (i = 0; i < n_controllers; i++) {
753 if (controllers[i]->local_ip) {
754 oso.control_ip = controllers[i]->local_ip;
758 ofproto_set_sflow(br->ofproto, &oso);
760 sset_destroy(&oso.targets);
764 port_configure_stp(const struct ofproto *ofproto, struct port *port,
765 struct ofproto_port_stp_settings *port_s,
766 int *port_num_counter, unsigned long *port_num_bitmap)
768 const char *config_str;
771 config_str = get_port_other_config(port->cfg, "stp-enable", NULL);
772 if (config_str && !strcmp(config_str, "false")) {
773 port_s->enable = false;
776 port_s->enable = true;
779 /* STP over bonds is not supported. */
780 if (!list_is_singleton(&port->ifaces)) {
781 VLOG_ERR("port %s: cannot enable STP on bonds, disabling",
783 port_s->enable = false;
787 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
789 /* Internal ports shouldn't participate in spanning tree, so
791 if (!strcmp(iface->type, "internal")) {
792 VLOG_DBG("port %s: disable STP on internal ports", port->name);
793 port_s->enable = false;
797 /* STP on mirror output ports is not supported. */
798 if (ofproto_is_mirror_output_bundle(ofproto, port)) {
799 VLOG_DBG("port %s: disable STP on mirror ports", port->name);
800 port_s->enable = false;
804 config_str = get_port_other_config(port->cfg, "stp-port-num", NULL);
806 unsigned long int port_num = strtoul(config_str, NULL, 0);
807 int port_idx = port_num - 1;
809 if (port_num < 1 || port_num > STP_MAX_PORTS) {
810 VLOG_ERR("port %s: invalid stp-port-num", port->name);
811 port_s->enable = false;
815 if (bitmap_is_set(port_num_bitmap, port_idx)) {
816 VLOG_ERR("port %s: duplicate stp-port-num %lu, disabling",
817 port->name, port_num);
818 port_s->enable = false;
821 bitmap_set1(port_num_bitmap, port_idx);
822 port_s->port_num = port_idx;
824 if (*port_num_counter > STP_MAX_PORTS) {
825 VLOG_ERR("port %s: too many STP ports, disabling", port->name);
826 port_s->enable = false;
830 port_s->port_num = (*port_num_counter)++;
833 config_str = get_port_other_config(port->cfg, "stp-path-cost", NULL);
835 port_s->path_cost = strtoul(config_str, NULL, 10);
839 if (netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL)) {
840 /* Couldn't get speed, so assume 100Mb/s. */
841 port_s->path_cost = 19;
845 mbps = netdev_features_to_bps(current) / 1000000;
846 port_s->path_cost = stp_convert_speed_to_cost(mbps);
850 config_str = get_port_other_config(port->cfg, "stp-port-priority", NULL);
852 port_s->priority = strtoul(config_str, NULL, 0);
854 port_s->priority = STP_DEFAULT_PORT_PRIORITY;
858 /* Set spanning tree configuration on 'br'. */
860 bridge_configure_stp(struct bridge *br)
862 if (!br->cfg->stp_enable) {
863 ofproto_set_stp(br->ofproto, NULL);
865 struct ofproto_stp_settings br_s;
866 const char *config_str;
868 int port_num_counter;
869 unsigned long *port_num_bitmap;
871 config_str = bridge_get_other_config(br->cfg, "stp-system-id");
873 uint8_t ea[ETH_ADDR_LEN];
875 if (eth_addr_from_string(config_str, ea)) {
876 br_s.system_id = eth_addr_to_uint64(ea);
878 br_s.system_id = eth_addr_to_uint64(br->ea);
879 VLOG_ERR("bridge %s: invalid stp-system-id, defaulting "
880 "to "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(br->ea));
883 br_s.system_id = eth_addr_to_uint64(br->ea);
886 config_str = bridge_get_other_config(br->cfg, "stp-priority");
888 br_s.priority = strtoul(config_str, NULL, 0);
890 br_s.priority = STP_DEFAULT_BRIDGE_PRIORITY;
893 config_str = bridge_get_other_config(br->cfg, "stp-hello-time");
895 br_s.hello_time = strtoul(config_str, NULL, 10) * 1000;
897 br_s.hello_time = STP_DEFAULT_HELLO_TIME;
900 config_str = bridge_get_other_config(br->cfg, "stp-max-age");
902 br_s.max_age = strtoul(config_str, NULL, 10) * 1000;
904 br_s.max_age = STP_DEFAULT_MAX_AGE;
907 config_str = bridge_get_other_config(br->cfg, "stp-forward-delay");
909 br_s.fwd_delay = strtoul(config_str, NULL, 10) * 1000;
911 br_s.fwd_delay = STP_DEFAULT_FWD_DELAY;
914 /* Configure STP on the bridge. */
915 if (ofproto_set_stp(br->ofproto, &br_s)) {
916 VLOG_ERR("bridge %s: could not enable STP", br->name);
920 /* Users must either set the port number with the "stp-port-num"
921 * configuration on all ports or none. If manual configuration
922 * is not done, then we allocate them sequentially. */
923 port_num_counter = 0;
924 port_num_bitmap = bitmap_allocate(STP_MAX_PORTS);
925 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
926 struct ofproto_port_stp_settings port_s;
929 port_configure_stp(br->ofproto, port, &port_s,
930 &port_num_counter, port_num_bitmap);
932 /* As bonds are not supported, just apply configuration to
934 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
935 if (ofproto_port_set_stp(br->ofproto, iface->ofp_port,
937 VLOG_ERR("port %s: could not enable STP", port->name);
943 if (bitmap_scan(port_num_bitmap, 0, STP_MAX_PORTS) != STP_MAX_PORTS
944 && port_num_counter) {
945 VLOG_ERR("bridge %s: must manually configure all STP port "
946 "IDs or none, disabling", br->name);
947 ofproto_set_stp(br->ofproto, NULL);
949 bitmap_free(port_num_bitmap);
954 bridge_has_bond_fake_iface(const struct bridge *br, const char *name)
956 const struct port *port = port_lookup(br, name);
957 return port && port_is_bond_fake_iface(port);
961 port_is_bond_fake_iface(const struct port *port)
963 return port->cfg->bond_fake_iface && !list_is_short(&port->ifaces);
967 add_del_bridges(const struct ovsrec_open_vswitch *cfg)
969 struct bridge *br, *next;
973 /* Collect new bridges' names and types. */
975 for (i = 0; i < cfg->n_bridges; i++) {
976 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
977 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
979 if (strchr(br_cfg->name, '/')) {
980 /* Prevent remote ovsdb-server users from accessing arbitrary
981 * directories, e.g. consider a bridge named "../../../etc/". */
982 VLOG_WARN_RL(&rl, "ignoring bridge with invalid name \"%s\"",
984 } else if (!shash_add_once(&new_br, br_cfg->name, br_cfg)) {
985 VLOG_WARN_RL(&rl, "bridge %s specified twice", br_cfg->name);
989 /* Get rid of deleted bridges or those whose types have changed.
990 * Update 'cfg' of bridges that still exist. */
991 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
992 br->cfg = shash_find_data(&new_br, br->name);
993 if (!br->cfg || strcmp(br->type, ofproto_normalize_type(
994 br->cfg->datapath_type))) {
999 /* Add new bridges. */
1000 for (i = 0; i < cfg->n_bridges; i++) {
1001 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
1002 struct bridge *br = bridge_lookup(br_cfg->name);
1004 bridge_create(br_cfg);
1008 shash_destroy(&new_br);
1011 /* Delete each ofproto port on 'br' that doesn't have a corresponding "struct
1014 * The kernel will reject any attempt to add a given port to a datapath if that
1015 * port already belongs to a different datapath, so we must do all port
1016 * deletions before any port additions. */
1018 bridge_del_ofproto_ports(struct bridge *br)
1020 struct ofproto_port_dump dump;
1021 struct ofproto_port ofproto_port;
1023 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
1024 const char *name = ofproto_port.name;
1025 struct iface *iface;
1029 /* Ignore the local port. We can't change it anyhow. */
1030 if (!strcmp(name, br->name)) {
1034 /* Get the type that 'ofproto_port' should have (ordinarily the
1035 * type of its corresponding iface) or NULL if it should be
1037 iface = iface_lookup(br, name);
1038 type = (iface ? iface->type
1039 : bridge_has_bond_fake_iface(br, name) ? "internal"
1042 /* If it's the wrong type then delete the ofproto port. */
1044 && !strcmp(ofproto_port.type, type)
1045 && (!iface || !iface->netdev
1046 || !strcmp(netdev_get_type(iface->netdev), type))) {
1049 error = ofproto_port_del(br->ofproto, ofproto_port.ofp_port);
1051 VLOG_WARN("bridge %s: failed to remove %s interface (%s)",
1052 br->name, name, strerror(error));
1055 netdev_close(iface->netdev);
1056 iface->netdev = NULL;
1062 iface_set_ofp_port(struct iface *iface, int ofp_port)
1064 struct bridge *br = iface->port->bridge;
1066 assert(iface->ofp_port < 0 && ofp_port >= 0);
1067 iface->ofp_port = ofp_port;
1068 hmap_insert(&br->ifaces, &iface->ofp_port_node, hash_int(ofp_port, 0));
1069 iface_set_ofport(iface->cfg, ofp_port);
1073 bridge_refresh_ofp_port(struct bridge *br)
1075 struct ofproto_port_dump dump;
1076 struct ofproto_port ofproto_port;
1079 /* Clear all the "ofp_port"es. */
1080 hmap_clear(&br->ifaces);
1081 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1082 struct iface *iface;
1084 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1085 iface->ofp_port = -1;
1089 /* Obtain the correct "ofp_port"s from ofproto. */
1090 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
1091 struct iface *iface = iface_lookup(br, ofproto_port.name);
1093 if (iface->ofp_port >= 0) {
1094 VLOG_WARN("bridge %s: interface %s reported twice",
1095 br->name, ofproto_port.name);
1096 } else if (iface_from_ofp_port(br, ofproto_port.ofp_port)) {
1097 VLOG_WARN("bridge %s: interface %"PRIu16" reported twice",
1098 br->name, ofproto_port.ofp_port);
1100 iface_set_ofp_port(iface, ofproto_port.ofp_port);
1106 /* Add an ofproto port for any "struct iface" that doesn't have one.
1107 * Delete any "struct iface" for which this fails.
1108 * Delete any "struct port" that thereby ends up with no ifaces. */
1110 bridge_add_ofproto_ports(struct bridge *br)
1112 struct port *port, *next_port;
1114 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
1115 struct iface *iface, *next_iface;
1116 struct ofproto_port ofproto_port;
1118 LIST_FOR_EACH_SAFE (iface, next_iface, port_elem, &port->ifaces) {
1121 /* Open the netdev. */
1122 if (!iface->netdev) {
1123 error = netdev_open(iface->name, iface->type, &iface->netdev);
1125 VLOG_WARN("could not open network device %s (%s)",
1126 iface->name, strerror(error));
1130 && port->cfg->vlan_mode
1131 && !strcmp(port->cfg->vlan_mode, "splinter")) {
1132 netdev_turn_flags_on(iface->netdev, NETDEV_UP, true);
1138 /* Configure the netdev. */
1139 if (iface->netdev) {
1143 shash_from_ovs_idl_map(iface->cfg->key_options,
1144 iface->cfg->value_options,
1145 iface->cfg->n_options, &args);
1146 error = netdev_set_config(iface->netdev, &args);
1147 shash_destroy(&args);
1150 VLOG_WARN("could not configure network device %s (%s)",
1151 iface->name, strerror(error));
1152 netdev_close(iface->netdev);
1153 iface->netdev = NULL;
1157 /* Add the port, if necessary. */
1158 if (iface->netdev && iface->ofp_port < 0) {
1162 error = ofproto_port_add(br->ofproto, iface->netdev,
1165 iface_set_ofp_port(iface, ofp_port);
1167 netdev_close(iface->netdev);
1168 iface->netdev = NULL;
1172 /* Populate stats columns in new Interface rows. */
1173 if (iface->netdev && !iface->cfg->mtu) {
1174 iface_refresh_stats(iface);
1175 iface_refresh_status(iface);
1178 /* Delete the iface if we failed. */
1179 if (iface->netdev && iface->ofp_port >= 0) {
1180 VLOG_DBG("bridge %s: interface %s is on port %d",
1181 br->name, iface->name, iface->ofp_port);
1183 if (iface->netdev) {
1184 VLOG_ERR("bridge %s: missing %s interface, dropping",
1185 br->name, iface->name);
1187 /* We already reported a related error, don't bother
1188 * duplicating it. */
1190 iface_clear_db_record(iface->cfg);
1191 iface_destroy(iface);
1194 if (list_is_empty(&port->ifaces)) {
1195 VLOG_WARN("%s port has no interfaces, dropping", port->name);
1200 /* Add bond fake iface if necessary. */
1201 if (port_is_bond_fake_iface(port)) {
1202 if (ofproto_port_query_by_name(br->ofproto, port->name,
1204 struct netdev *netdev;
1207 error = netdev_open(port->name, "internal", &netdev);
1209 ofproto_port_add(br->ofproto, netdev, NULL);
1210 netdev_close(netdev);
1212 VLOG_WARN("could not open network device %s (%s)",
1213 port->name, strerror(error));
1216 /* Already exists, nothing to do. */
1217 ofproto_port_destroy(&ofproto_port);
1224 get_ovsrec_key_value(char **keys, char **values, size_t n, const char *key)
1228 for (i = 0; i < n; i++) {
1229 if (!strcmp(keys[i], key)) {
1237 bridge_get_other_config(const struct ovsrec_bridge *br_cfg, const char *key)
1239 return get_ovsrec_key_value(br_cfg->key_other_config,
1240 br_cfg->value_other_config,
1241 br_cfg->n_other_config, key);
1244 /* Set Flow eviction threshold */
1246 bridge_configure_flow_eviction_threshold(struct bridge *br)
1248 const char *threshold_str;
1251 threshold_str = bridge_get_other_config(br->cfg, "flow-eviction-threshold");
1252 if (threshold_str) {
1253 threshold = strtoul(threshold_str, NULL, 10);
1255 threshold = OFPROTO_FLOW_EVICTON_THRESHOLD_DEFAULT;
1257 ofproto_set_flow_eviction_threshold(br->ofproto, threshold);
1260 /* Set forward BPDU option. */
1262 bridge_configure_forward_bpdu(struct bridge *br)
1264 const char *forward_bpdu_str;
1265 bool forward_bpdu = false;
1267 forward_bpdu_str = bridge_get_other_config(br->cfg, "forward-bpdu");
1268 if (forward_bpdu_str && !strcmp(forward_bpdu_str, "true")) {
1269 forward_bpdu = true;
1271 ofproto_set_forward_bpdu(br->ofproto, forward_bpdu);
1275 bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
1276 struct iface **hw_addr_iface)
1278 struct hmapx mirror_output_ports;
1281 bool found_addr = false;
1285 *hw_addr_iface = NULL;
1287 /* Did the user request a particular MAC? */
1288 hwaddr = bridge_get_other_config(br->cfg, "hwaddr");
1289 if (hwaddr && eth_addr_from_string(hwaddr, ea)) {
1290 if (eth_addr_is_multicast(ea)) {
1291 VLOG_ERR("bridge %s: cannot set MAC address to multicast "
1292 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1293 } else if (eth_addr_is_zero(ea)) {
1294 VLOG_ERR("bridge %s: cannot set MAC address to zero", br->name);
1300 /* Mirror output ports don't participate in picking the local hardware
1301 * address. ofproto can't help us find out whether a given port is a
1302 * mirror output because we haven't configured mirrors yet, so we need to
1303 * accumulate them ourselves. */
1304 hmapx_init(&mirror_output_ports);
1305 for (i = 0; i < br->cfg->n_mirrors; i++) {
1306 struct ovsrec_mirror *m = br->cfg->mirrors[i];
1307 if (m->output_port) {
1308 hmapx_add(&mirror_output_ports, m->output_port);
1312 /* Otherwise choose the minimum non-local MAC address among all of the
1314 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1315 uint8_t iface_ea[ETH_ADDR_LEN];
1316 struct iface *candidate;
1317 struct iface *iface;
1319 /* Mirror output ports don't participate. */
1320 if (hmapx_contains(&mirror_output_ports, port->cfg)) {
1324 /* Choose the MAC address to represent the port. */
1326 if (port->cfg->mac && eth_addr_from_string(port->cfg->mac, iface_ea)) {
1327 /* Find the interface with this Ethernet address (if any) so that
1328 * we can provide the correct devname to the caller. */
1329 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1330 uint8_t candidate_ea[ETH_ADDR_LEN];
1331 if (!netdev_get_etheraddr(candidate->netdev, candidate_ea)
1332 && eth_addr_equals(iface_ea, candidate_ea)) {
1337 /* Choose the interface whose MAC address will represent the port.
1338 * The Linux kernel bonding code always chooses the MAC address of
1339 * the first slave added to a bond, and the Fedora networking
1340 * scripts always add slaves to a bond in alphabetical order, so
1341 * for compatibility we choose the interface with the name that is
1342 * first in alphabetical order. */
1343 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1344 if (!iface || strcmp(candidate->name, iface->name) < 0) {
1349 /* The local port doesn't count (since we're trying to choose its
1350 * MAC address anyway). */
1351 if (iface->ofp_port == OFPP_LOCAL) {
1356 error = netdev_get_etheraddr(iface->netdev, iface_ea);
1362 /* Compare against our current choice. */
1363 if (!eth_addr_is_multicast(iface_ea) &&
1364 !eth_addr_is_local(iface_ea) &&
1365 !eth_addr_is_reserved(iface_ea) &&
1366 !eth_addr_is_zero(iface_ea) &&
1367 (!found_addr || eth_addr_compare_3way(iface_ea, ea) < 0))
1369 memcpy(ea, iface_ea, ETH_ADDR_LEN);
1370 *hw_addr_iface = iface;
1375 VLOG_DBG("bridge %s: using bridge Ethernet address "ETH_ADDR_FMT,
1376 br->name, ETH_ADDR_ARGS(ea));
1378 memcpy(ea, br->default_ea, ETH_ADDR_LEN);
1379 *hw_addr_iface = NULL;
1380 VLOG_WARN("bridge %s: using default bridge Ethernet "
1381 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1384 hmapx_destroy(&mirror_output_ports);
1387 /* Choose and returns the datapath ID for bridge 'br' given that the bridge
1388 * Ethernet address is 'bridge_ea'. If 'bridge_ea' is the Ethernet address of
1389 * an interface on 'br', then that interface must be passed in as
1390 * 'hw_addr_iface'; if 'bridge_ea' was derived some other way, then
1391 * 'hw_addr_iface' must be passed in as a null pointer. */
1393 bridge_pick_datapath_id(struct bridge *br,
1394 const uint8_t bridge_ea[ETH_ADDR_LEN],
1395 struct iface *hw_addr_iface)
1398 * The procedure for choosing a bridge MAC address will, in the most
1399 * ordinary case, also choose a unique MAC that we can use as a datapath
1400 * ID. In some special cases, though, multiple bridges will end up with
1401 * the same MAC address. This is OK for the bridges, but it will confuse
1402 * the OpenFlow controller, because each datapath needs a unique datapath
1405 * Datapath IDs must be unique. It is also very desirable that they be
1406 * stable from one run to the next, so that policy set on a datapath
1409 const char *datapath_id;
1412 datapath_id = bridge_get_other_config(br->cfg, "datapath-id");
1413 if (datapath_id && dpid_from_string(datapath_id, &dpid)) {
1417 if (!hw_addr_iface) {
1419 * A purely internal bridge, that is, one that has no non-virtual
1420 * network devices on it at all, is difficult because it has no
1421 * natural unique identifier at all.
1423 * When the host is a XenServer, we handle this case by hashing the
1424 * host's UUID with the name of the bridge. Names of bridges are
1425 * persistent across XenServer reboots, although they can be reused if
1426 * an internal network is destroyed and then a new one is later
1427 * created, so this is fairly effective.
1429 * When the host is not a XenServer, we punt by using a random MAC
1430 * address on each run.
1432 const char *host_uuid = xenserver_get_host_uuid();
1434 char *combined = xasprintf("%s,%s", host_uuid, br->name);
1435 dpid = dpid_from_hash(combined, strlen(combined));
1441 return eth_addr_to_uint64(bridge_ea);
1445 dpid_from_hash(const void *data, size_t n)
1447 uint8_t hash[SHA1_DIGEST_SIZE];
1449 BUILD_ASSERT_DECL(sizeof hash >= ETH_ADDR_LEN);
1450 sha1_bytes(data, n, hash);
1451 eth_addr_mark_random(hash);
1452 return eth_addr_to_uint64(hash);
1456 iface_refresh_status(struct iface *iface)
1460 enum netdev_flags flags;
1467 if (iface_is_synthetic(iface)) {
1473 if (!netdev_get_status(iface->netdev, &sh)) {
1475 char **keys, **values;
1477 shash_to_ovs_idl_map(&sh, &keys, &values, &n);
1478 ovsrec_interface_set_status(iface->cfg, keys, values, n);
1483 ovsrec_interface_set_status(iface->cfg, NULL, NULL, 0);
1486 shash_destroy_free_data(&sh);
1488 error = netdev_get_flags(iface->netdev, &flags);
1490 ovsrec_interface_set_admin_state(iface->cfg, flags & NETDEV_UP ? "up" : "down");
1493 ovsrec_interface_set_admin_state(iface->cfg, NULL);
1496 error = netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
1498 ovsrec_interface_set_duplex(iface->cfg,
1499 netdev_features_is_full_duplex(current)
1501 /* warning: uint64_t -> int64_t conversion */
1502 bps = netdev_features_to_bps(current);
1503 ovsrec_interface_set_link_speed(iface->cfg, &bps, 1);
1506 ovsrec_interface_set_duplex(iface->cfg, NULL);
1507 ovsrec_interface_set_link_speed(iface->cfg, NULL, 0);
1510 error = netdev_get_mtu(iface->netdev, &mtu);
1513 ovsrec_interface_set_mtu(iface->cfg, &mtu_64, 1);
1516 ovsrec_interface_set_mtu(iface->cfg, NULL, 0);
1520 /* Writes 'iface''s CFM statistics to the database. */
1522 iface_refresh_cfm_stats(struct iface *iface)
1524 const struct ovsrec_interface *cfg = iface->cfg;
1526 const uint64_t *rmps;
1529 if (iface_is_synthetic(iface)) {
1533 fault = ofproto_port_get_cfm_fault(iface->port->bridge->ofproto,
1536 bool fault_bool = fault;
1537 ovsrec_interface_set_cfm_fault(cfg, &fault_bool, 1);
1539 ovsrec_interface_set_cfm_fault(cfg, NULL, 0);
1542 error = ofproto_port_get_cfm_remote_mpids(iface->port->bridge->ofproto,
1543 iface->ofp_port, &rmps, &n_rmps);
1545 ovsrec_interface_set_cfm_remote_mpids(cfg, (const int64_t *)rmps,
1548 ovsrec_interface_set_cfm_remote_mpids(cfg, NULL, 0);
1553 iface_refresh_stats(struct iface *iface)
1555 #define IFACE_STATS \
1556 IFACE_STAT(rx_packets, "rx_packets") \
1557 IFACE_STAT(tx_packets, "tx_packets") \
1558 IFACE_STAT(rx_bytes, "rx_bytes") \
1559 IFACE_STAT(tx_bytes, "tx_bytes") \
1560 IFACE_STAT(rx_dropped, "rx_dropped") \
1561 IFACE_STAT(tx_dropped, "tx_dropped") \
1562 IFACE_STAT(rx_errors, "rx_errors") \
1563 IFACE_STAT(tx_errors, "tx_errors") \
1564 IFACE_STAT(rx_frame_errors, "rx_frame_err") \
1565 IFACE_STAT(rx_over_errors, "rx_over_err") \
1566 IFACE_STAT(rx_crc_errors, "rx_crc_err") \
1567 IFACE_STAT(collisions, "collisions")
1569 #define IFACE_STAT(MEMBER, NAME) NAME,
1570 static char *keys[] = { IFACE_STATS };
1572 int64_t values[ARRAY_SIZE(keys)];
1575 struct netdev_stats stats;
1577 if (iface_is_synthetic(iface)) {
1581 /* Intentionally ignore return value, since errors will set 'stats' to
1582 * all-1s, and we will deal with that correctly below. */
1583 netdev_get_stats(iface->netdev, &stats);
1585 /* Copy statistics into values[] array. */
1587 #define IFACE_STAT(MEMBER, NAME) values[i++] = stats.MEMBER;
1590 assert(i == ARRAY_SIZE(keys));
1592 ovsrec_interface_set_statistics(iface->cfg, keys, values, ARRAY_SIZE(keys));
1597 br_refresh_stp_status(struct bridge *br)
1599 struct ofproto *ofproto = br->ofproto;
1600 struct ofproto_stp_status status;
1601 char *keys[3], *values[3];
1604 if (ofproto_get_stp_status(ofproto, &status)) {
1608 if (!status.enabled) {
1609 ovsrec_bridge_set_status(br->cfg, NULL, NULL, 0);
1613 keys[0] = "stp_bridge_id",
1614 values[0] = xasprintf(STP_ID_FMT, STP_ID_ARGS(status.bridge_id));
1615 keys[1] = "stp_designated_root",
1616 values[1] = xasprintf(STP_ID_FMT, STP_ID_ARGS(status.designated_root));
1617 keys[2] = "stp_root_path_cost",
1618 values[2] = xasprintf("%d", status.root_path_cost);
1620 ovsrec_bridge_set_status(br->cfg, keys, values, ARRAY_SIZE(values));
1622 for (i = 0; i < ARRAY_SIZE(values); i++) {
1628 port_refresh_stp_status(struct port *port)
1630 struct ofproto *ofproto = port->bridge->ofproto;
1631 struct iface *iface;
1632 struct ofproto_port_stp_status status;
1634 char *str_values[4];
1635 int64_t int_values[3];
1638 if (port_is_synthetic(port)) {
1642 /* STP doesn't currently support bonds. */
1643 if (!list_is_singleton(&port->ifaces)) {
1644 ovsrec_port_set_status(port->cfg, NULL, NULL, 0);
1648 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
1650 if (ofproto_port_get_stp_status(ofproto, iface->ofp_port, &status)) {
1654 if (!status.enabled) {
1655 ovsrec_port_set_status(port->cfg, NULL, NULL, 0);
1656 ovsrec_port_set_statistics(port->cfg, NULL, NULL, 0);
1660 /* Set Status column. */
1661 keys[0] = "stp_port_id";
1662 str_values[0] = xasprintf(STP_PORT_ID_FMT, status.port_id);
1663 keys[1] = "stp_state";
1664 str_values[1] = xstrdup(stp_state_name(status.state));
1665 keys[2] = "stp_sec_in_state";
1666 str_values[2] = xasprintf("%u", status.sec_in_state);
1667 keys[3] = "stp_role";
1668 str_values[3] = xstrdup(stp_role_name(status.role));
1670 ovsrec_port_set_status(port->cfg, keys, str_values,
1671 ARRAY_SIZE(str_values));
1673 for (i = 0; i < ARRAY_SIZE(str_values); i++) {
1674 free(str_values[i]);
1677 /* Set Statistics column. */
1678 keys[0] = "stp_tx_count";
1679 int_values[0] = status.tx_count;
1680 keys[1] = "stp_rx_count";
1681 int_values[1] = status.rx_count;
1682 keys[2] = "stp_error_count";
1683 int_values[2] = status.error_count;
1685 ovsrec_port_set_statistics(port->cfg, keys, int_values,
1686 ARRAY_SIZE(int_values));
1690 enable_system_stats(const struct ovsrec_open_vswitch *cfg)
1694 /* Use other-config:enable-system-stats by preference. */
1695 enable = get_ovsrec_key_value(cfg->key_other_config,
1696 cfg->value_other_config,
1697 cfg->n_other_config,
1698 "enable-statistics");
1700 return !strcmp(enable, "true");
1703 /* Disable by default. */
1708 refresh_system_stats(const struct ovsrec_open_vswitch *cfg)
1710 struct ovsdb_datum datum;
1714 if (enable_system_stats(cfg)) {
1715 get_system_stats(&stats);
1718 ovsdb_datum_from_shash(&datum, &stats);
1719 ovsdb_idl_txn_write(&cfg->header_, &ovsrec_open_vswitch_col_statistics,
1723 static inline const char *
1724 nx_role_to_str(enum nx_role role)
1729 case NX_ROLE_MASTER:
1734 return "*** INVALID ROLE ***";
1739 refresh_controller_status(void)
1743 const struct ovsrec_controller *cfg;
1747 /* Accumulate status for controllers on all bridges. */
1748 HMAP_FOR_EACH (br, node, &all_bridges) {
1749 ofproto_get_ofproto_controller_info(br->ofproto, &info);
1752 /* Update each controller in the database with current status. */
1753 OVSREC_CONTROLLER_FOR_EACH(cfg, idl) {
1754 struct ofproto_controller_info *cinfo =
1755 shash_find_data(&info, cfg->target);
1758 ovsrec_controller_set_is_connected(cfg, cinfo->is_connected);
1759 ovsrec_controller_set_role(cfg, nx_role_to_str(cinfo->role));
1760 ovsrec_controller_set_status(cfg, (char **) cinfo->pairs.keys,
1761 (char **) cinfo->pairs.values,
1764 ovsrec_controller_set_is_connected(cfg, false);
1765 ovsrec_controller_set_role(cfg, NULL);
1766 ovsrec_controller_set_status(cfg, NULL, NULL, 0);
1770 ofproto_free_ofproto_controller_info(&info);
1774 refresh_cfm_stats(void)
1776 static struct ovsdb_idl_txn *txn = NULL;
1781 txn = ovsdb_idl_txn_create(idl);
1783 HMAP_FOR_EACH (br, node, &all_bridges) {
1784 struct iface *iface;
1786 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
1787 iface_refresh_cfm_stats(iface);
1792 if (ovsdb_idl_txn_commit(txn) != TXN_INCOMPLETE) {
1793 ovsdb_idl_txn_destroy(txn);
1798 /* Performs periodic activity required by bridges that needs to be done with
1799 * the least possible latency.
1801 * It makes sense to call this function a couple of times per poll loop, to
1802 * provide a significant performance boost on some benchmarks with ofprotos
1803 * that use the ofproto-dpif implementation. */
1805 bridge_run_fast(void)
1809 HMAP_FOR_EACH (br, node, &all_bridges) {
1810 ofproto_run_fast(br->ofproto);
1817 const struct ovsrec_open_vswitch *cfg;
1819 bool vlan_splinters_changed;
1820 bool database_changed;
1823 /* (Re)configure if necessary. */
1824 database_changed = ovsdb_idl_run(idl);
1825 if (ovsdb_idl_is_lock_contended(idl)) {
1826 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
1827 struct bridge *br, *next_br;
1829 VLOG_ERR_RL(&rl, "another ovs-vswitchd process is running, "
1830 "disabling this process until it goes away");
1832 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
1836 } else if (!ovsdb_idl_has_lock(idl)) {
1839 cfg = ovsrec_open_vswitch_first(idl);
1841 /* Let each bridge do the work that it needs to do. */
1842 HMAP_FOR_EACH (br, node, &all_bridges) {
1843 ofproto_run(br->ofproto);
1846 /* Re-configure SSL. We do this on every trip through the main loop,
1847 * instead of just when the database changes, because the contents of the
1848 * key and certificate files can change without the database changing.
1850 * We do this before bridge_reconfigure() because that function might
1851 * initiate SSL connections and thus requires SSL to be configured. */
1852 if (cfg && cfg->ssl) {
1853 const struct ovsrec_ssl *ssl = cfg->ssl;
1855 stream_ssl_set_key_and_cert(ssl->private_key, ssl->certificate);
1856 stream_ssl_set_ca_cert_file(ssl->ca_cert, ssl->bootstrap_ca_cert);
1859 /* If VLAN splinters are in use, then we need to reconfigure if VLAN usage
1861 vlan_splinters_changed = false;
1862 if (vlan_splinters_enabled_anywhere) {
1863 HMAP_FOR_EACH (br, node, &all_bridges) {
1864 if (ofproto_has_vlan_usage_changed(br->ofproto)) {
1865 vlan_splinters_changed = true;
1871 if (database_changed || vlan_splinters_changed) {
1873 struct ovsdb_idl_txn *txn = ovsdb_idl_txn_create(idl);
1875 bridge_reconfigure(cfg);
1877 ovsrec_open_vswitch_set_cur_cfg(cfg, cfg->next_cfg);
1878 ovsdb_idl_txn_commit(txn);
1879 ovsdb_idl_txn_destroy(txn); /* XXX */
1881 /* We still need to reconfigure to avoid dangling pointers to
1882 * now-destroyed ovsrec structures inside bridge data. */
1883 static const struct ovsrec_open_vswitch null_cfg;
1885 bridge_reconfigure(&null_cfg);
1889 /* Refresh system and interface stats if necessary. */
1890 if (time_msec() >= stats_timer) {
1892 struct ovsdb_idl_txn *txn;
1894 txn = ovsdb_idl_txn_create(idl);
1895 HMAP_FOR_EACH (br, node, &all_bridges) {
1899 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1900 struct iface *iface;
1902 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1903 iface_refresh_stats(iface);
1904 iface_refresh_status(iface);
1908 HMAP_FOR_EACH (m, hmap_node, &br->mirrors) {
1909 mirror_refresh_stats(m);
1913 refresh_system_stats(cfg);
1914 refresh_controller_status();
1915 ovsdb_idl_txn_commit(txn);
1916 ovsdb_idl_txn_destroy(txn); /* XXX */
1919 stats_timer = time_msec() + STATS_INTERVAL;
1922 if (time_msec() >= db_limiter) {
1923 struct ovsdb_idl_txn *txn;
1925 txn = ovsdb_idl_txn_create(idl);
1926 HMAP_FOR_EACH (br, node, &all_bridges) {
1927 struct iface *iface;
1930 br_refresh_stp_status(br);
1932 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1933 port_refresh_stp_status(port);
1936 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
1937 const char *link_state;
1938 int64_t link_resets;
1941 if (iface_is_synthetic(iface)) {
1945 current = ofproto_port_is_lacp_current(br->ofproto,
1949 ovsrec_interface_set_lacp_current(iface->cfg, &bl, 1);
1951 ovsrec_interface_set_lacp_current(iface->cfg, NULL, 0);
1954 link_state = netdev_get_carrier(iface->netdev) ? "up" : "down";
1955 ovsrec_interface_set_link_state(iface->cfg, link_state);
1957 link_resets = netdev_get_carrier_resets(iface->netdev);
1958 ovsrec_interface_set_link_resets(iface->cfg, &link_resets, 1);
1962 if (ovsdb_idl_txn_commit(txn) != TXN_UNCHANGED) {
1963 db_limiter = time_msec() + DB_LIMIT_INTERVAL;
1965 ovsdb_idl_txn_destroy(txn);
1968 refresh_cfm_stats();
1974 ovsdb_idl_wait(idl);
1975 if (!hmap_is_empty(&all_bridges)) {
1978 HMAP_FOR_EACH (br, node, &all_bridges) {
1979 ofproto_wait(br->ofproto);
1981 poll_timer_wait_until(stats_timer);
1983 if (db_limiter > time_msec()) {
1984 poll_timer_wait_until(db_limiter);
1989 /* QoS unixctl user interface functions. */
1991 struct qos_unixctl_show_cbdata {
1993 struct iface *iface;
1997 qos_unixctl_show_cb(unsigned int queue_id,
1998 const struct shash *details,
2001 struct qos_unixctl_show_cbdata *data = aux;
2002 struct ds *ds = data->ds;
2003 struct iface *iface = data->iface;
2004 struct netdev_queue_stats stats;
2005 struct shash_node *node;
2008 ds_put_cstr(ds, "\n");
2010 ds_put_format(ds, "Queue %u:\n", queue_id);
2012 ds_put_cstr(ds, "Default:\n");
2015 SHASH_FOR_EACH (node, details) {
2016 ds_put_format(ds, "\t%s: %s\n", node->name, (char *)node->data);
2019 error = netdev_get_queue_stats(iface->netdev, queue_id, &stats);
2021 if (stats.tx_packets != UINT64_MAX) {
2022 ds_put_format(ds, "\ttx_packets: %"PRIu64"\n", stats.tx_packets);
2025 if (stats.tx_bytes != UINT64_MAX) {
2026 ds_put_format(ds, "\ttx_bytes: %"PRIu64"\n", stats.tx_bytes);
2029 if (stats.tx_errors != UINT64_MAX) {
2030 ds_put_format(ds, "\ttx_errors: %"PRIu64"\n", stats.tx_errors);
2033 ds_put_format(ds, "\tFailed to get statistics for queue %u: %s",
2034 queue_id, strerror(error));
2039 qos_unixctl_show(struct unixctl_conn *conn, int argc OVS_UNUSED,
2040 const char *argv[], void *aux OVS_UNUSED)
2042 struct ds ds = DS_EMPTY_INITIALIZER;
2043 struct shash sh = SHASH_INITIALIZER(&sh);
2044 struct iface *iface;
2046 struct shash_node *node;
2047 struct qos_unixctl_show_cbdata data;
2050 iface = iface_find(argv[1]);
2052 unixctl_command_reply(conn, 501, "no such interface");
2056 netdev_get_qos(iface->netdev, &type, &sh);
2058 if (*type != '\0') {
2059 ds_put_format(&ds, "QoS: %s %s\n", iface->name, type);
2061 SHASH_FOR_EACH (node, &sh) {
2062 ds_put_format(&ds, "%s: %s\n", node->name, (char *)node->data);
2067 error = netdev_dump_queues(iface->netdev, qos_unixctl_show_cb, &data);
2070 ds_put_format(&ds, "failed to dump queues: %s", strerror(error));
2072 unixctl_command_reply(conn, 200, ds_cstr(&ds));
2074 ds_put_format(&ds, "QoS not configured on %s\n", iface->name);
2075 unixctl_command_reply(conn, 501, ds_cstr(&ds));
2078 shash_destroy_free_data(&sh);
2082 /* Bridge reconfiguration functions. */
2084 bridge_create(const struct ovsrec_bridge *br_cfg)
2088 assert(!bridge_lookup(br_cfg->name));
2089 br = xzalloc(sizeof *br);
2091 br->name = xstrdup(br_cfg->name);
2092 br->type = xstrdup(ofproto_normalize_type(br_cfg->datapath_type));
2095 /* Derive the default Ethernet address from the bridge's UUID. This should
2096 * be unique and it will be stable between ovs-vswitchd runs. */
2097 memcpy(br->default_ea, &br_cfg->header_.uuid, ETH_ADDR_LEN);
2098 eth_addr_mark_random(br->default_ea);
2100 hmap_init(&br->ports);
2101 hmap_init(&br->ifaces);
2102 hmap_init(&br->iface_by_name);
2103 hmap_init(&br->mirrors);
2105 hmap_insert(&all_bridges, &br->node, hash_string(br->name, 0));
2109 bridge_destroy(struct bridge *br)
2112 struct mirror *mirror, *next_mirror;
2113 struct port *port, *next_port;
2115 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
2118 HMAP_FOR_EACH_SAFE (mirror, next_mirror, hmap_node, &br->mirrors) {
2119 mirror_destroy(mirror);
2121 hmap_remove(&all_bridges, &br->node);
2122 ofproto_destroy(br->ofproto);
2123 hmap_destroy(&br->ifaces);
2124 hmap_destroy(&br->ports);
2125 hmap_destroy(&br->iface_by_name);
2126 hmap_destroy(&br->mirrors);
2133 static struct bridge *
2134 bridge_lookup(const char *name)
2138 HMAP_FOR_EACH_WITH_HASH (br, node, hash_string(name, 0), &all_bridges) {
2139 if (!strcmp(br->name, name)) {
2146 /* Handle requests for a listing of all flows known by the OpenFlow
2147 * stack, including those normally hidden. */
2149 bridge_unixctl_dump_flows(struct unixctl_conn *conn, int argc OVS_UNUSED,
2150 const char *argv[], void *aux OVS_UNUSED)
2155 br = bridge_lookup(argv[1]);
2157 unixctl_command_reply(conn, 501, "Unknown bridge");
2162 ofproto_get_all_flows(br->ofproto, &results);
2164 unixctl_command_reply(conn, 200, ds_cstr(&results));
2165 ds_destroy(&results);
2168 /* "bridge/reconnect [BRIDGE]": makes BRIDGE drop all of its controller
2169 * connections and reconnect. If BRIDGE is not specified, then all bridges
2170 * drop their controller connections and reconnect. */
2172 bridge_unixctl_reconnect(struct unixctl_conn *conn, int argc,
2173 const char *argv[], void *aux OVS_UNUSED)
2177 br = bridge_lookup(argv[1]);
2179 unixctl_command_reply(conn, 501, "Unknown bridge");
2182 ofproto_reconnect_controllers(br->ofproto);
2184 HMAP_FOR_EACH (br, node, &all_bridges) {
2185 ofproto_reconnect_controllers(br->ofproto);
2188 unixctl_command_reply(conn, 200, NULL);
2192 bridge_get_controllers(const struct bridge *br,
2193 struct ovsrec_controller ***controllersp)
2195 struct ovsrec_controller **controllers;
2196 size_t n_controllers;
2198 controllers = br->cfg->controller;
2199 n_controllers = br->cfg->n_controller;
2201 if (n_controllers == 1 && !strcmp(controllers[0]->target, "none")) {
2207 *controllersp = controllers;
2209 return n_controllers;
2212 /* Adds and deletes "struct port"s and "struct iface"s under 'br' to match
2213 * those configured in 'br->cfg'. */
2215 bridge_add_del_ports(struct bridge *br,
2216 const unsigned long int *splinter_vlans)
2218 struct port *port, *next;
2219 struct shash_node *node;
2220 struct shash new_ports;
2223 /* Collect new ports. */
2224 shash_init(&new_ports);
2225 for (i = 0; i < br->cfg->n_ports; i++) {
2226 const char *name = br->cfg->ports[i]->name;
2227 if (!shash_add_once(&new_ports, name, br->cfg->ports[i])) {
2228 VLOG_WARN("bridge %s: %s specified twice as bridge port",
2232 if (bridge_get_controllers(br, NULL)
2233 && !shash_find(&new_ports, br->name)) {
2234 VLOG_WARN("bridge %s: no port named %s, synthesizing one",
2235 br->name, br->name);
2237 br->synth_local_port.interfaces = &br->synth_local_ifacep;
2238 br->synth_local_port.n_interfaces = 1;
2239 br->synth_local_port.name = br->name;
2241 br->synth_local_iface.name = br->name;
2242 br->synth_local_iface.type = "internal";
2244 br->synth_local_ifacep = &br->synth_local_iface;
2246 shash_add(&new_ports, br->name, &br->synth_local_port);
2249 if (splinter_vlans) {
2250 add_vlan_splinter_ports(br, splinter_vlans, &new_ports);
2253 /* Get rid of deleted ports.
2254 * Get rid of deleted interfaces on ports that still exist. */
2255 HMAP_FOR_EACH_SAFE (port, next, hmap_node, &br->ports) {
2256 port->cfg = shash_find_data(&new_ports, port->name);
2260 port_del_ifaces(port);
2264 /* Create new ports.
2265 * Add new interfaces to existing ports. */
2266 SHASH_FOR_EACH (node, &new_ports) {
2267 struct port *port = port_lookup(br, node->name);
2269 struct ovsrec_port *cfg = node->data;
2270 port = port_create(br, cfg);
2272 port_add_ifaces(port);
2273 if (list_is_empty(&port->ifaces)) {
2274 VLOG_WARN("bridge %s: port %s has no interfaces, dropping",
2275 br->name, port->name);
2279 shash_destroy(&new_ports);
2282 /* Initializes 'oc' appropriately as a management service controller for
2285 * The caller must free oc->target when it is no longer needed. */
2287 bridge_ofproto_controller_for_mgmt(const struct bridge *br,
2288 struct ofproto_controller *oc)
2290 oc->target = xasprintf("punix:%s/%s.mgmt", ovs_rundir(), br->name);
2291 oc->max_backoff = 0;
2292 oc->probe_interval = 60;
2293 oc->band = OFPROTO_OUT_OF_BAND;
2295 oc->burst_limit = 0;
2298 /* Converts ovsrec_controller 'c' into an ofproto_controller in 'oc'. */
2300 bridge_ofproto_controller_from_ovsrec(const struct ovsrec_controller *c,
2301 struct ofproto_controller *oc)
2303 oc->target = c->target;
2304 oc->max_backoff = c->max_backoff ? *c->max_backoff / 1000 : 8;
2305 oc->probe_interval = c->inactivity_probe ? *c->inactivity_probe / 1000 : 5;
2306 oc->band = (!c->connection_mode || !strcmp(c->connection_mode, "in-band")
2307 ? OFPROTO_IN_BAND : OFPROTO_OUT_OF_BAND);
2308 oc->rate_limit = c->controller_rate_limit ? *c->controller_rate_limit : 0;
2309 oc->burst_limit = (c->controller_burst_limit
2310 ? *c->controller_burst_limit : 0);
2313 /* Configures the IP stack for 'br''s local interface properly according to the
2314 * configuration in 'c'. */
2316 bridge_configure_local_iface_netdev(struct bridge *br,
2317 struct ovsrec_controller *c)
2319 struct netdev *netdev;
2320 struct in_addr mask, gateway;
2322 struct iface *local_iface;
2325 /* If there's no local interface or no IP address, give up. */
2326 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
2327 if (!local_iface || !c->local_ip || !inet_aton(c->local_ip, &ip)) {
2331 /* Bring up the local interface. */
2332 netdev = local_iface->netdev;
2333 netdev_turn_flags_on(netdev, NETDEV_UP, true);
2335 /* Configure the IP address and netmask. */
2336 if (!c->local_netmask
2337 || !inet_aton(c->local_netmask, &mask)
2339 mask.s_addr = guess_netmask(ip.s_addr);
2341 if (!netdev_set_in4(netdev, ip, mask)) {
2342 VLOG_INFO("bridge %s: configured IP address "IP_FMT", netmask "IP_FMT,
2343 br->name, IP_ARGS(&ip.s_addr), IP_ARGS(&mask.s_addr));
2346 /* Configure the default gateway. */
2347 if (c->local_gateway
2348 && inet_aton(c->local_gateway, &gateway)
2349 && gateway.s_addr) {
2350 if (!netdev_add_router(netdev, gateway)) {
2351 VLOG_INFO("bridge %s: configured gateway "IP_FMT,
2352 br->name, IP_ARGS(&gateway.s_addr));
2357 /* Returns true if 'a' and 'b' are the same except that any number of slashes
2358 * in either string are treated as equal to any number of slashes in the other,
2359 * e.g. "x///y" is equal to "x/y". */
2361 equal_pathnames(const char *a, const char *b)
2365 a += strspn(a, "/");
2366 b += strspn(b, "/");
2367 } else if (*a == '\0') {
2378 bridge_configure_remotes(struct bridge *br,
2379 const struct sockaddr_in *managers, size_t n_managers)
2381 const char *disable_ib_str, *queue_id_str;
2382 bool disable_in_band = false;
2385 struct ovsrec_controller **controllers;
2386 size_t n_controllers;
2388 enum ofproto_fail_mode fail_mode;
2390 struct ofproto_controller *ocs;
2394 /* Check if we should disable in-band control on this bridge. */
2395 disable_ib_str = bridge_get_other_config(br->cfg, "disable-in-band");
2396 if (disable_ib_str && !strcmp(disable_ib_str, "true")) {
2397 disable_in_band = true;
2400 /* Set OpenFlow queue ID for in-band control. */
2401 queue_id_str = bridge_get_other_config(br->cfg, "in-band-queue");
2402 queue_id = queue_id_str ? strtol(queue_id_str, NULL, 10) : -1;
2403 ofproto_set_in_band_queue(br->ofproto, queue_id);
2405 if (disable_in_band) {
2406 ofproto_set_extra_in_band_remotes(br->ofproto, NULL, 0);
2408 ofproto_set_extra_in_band_remotes(br->ofproto, managers, n_managers);
2411 n_controllers = bridge_get_controllers(br, &controllers);
2413 ocs = xmalloc((n_controllers + 1) * sizeof *ocs);
2416 bridge_ofproto_controller_for_mgmt(br, &ocs[n_ocs++]);
2417 for (i = 0; i < n_controllers; i++) {
2418 struct ovsrec_controller *c = controllers[i];
2420 if (!strncmp(c->target, "punix:", 6)
2421 || !strncmp(c->target, "unix:", 5)) {
2422 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2425 whitelist = xasprintf("unix:%s/%s.controller",
2426 ovs_rundir(), br->name);
2427 if (!equal_pathnames(c->target, whitelist)) {
2428 /* Prevent remote ovsdb-server users from accessing arbitrary
2429 * Unix domain sockets and overwriting arbitrary local
2431 VLOG_ERR_RL(&rl, "bridge %s: Not adding Unix domain socket "
2432 "controller \"%s\" due to possibility for remote "
2433 "exploit. Instead, specify whitelisted \"%s\" or "
2434 "connect to \"unix:%s/%s.mgmt\" (which is always "
2435 "available without special configuration).",
2436 br->name, c->target, whitelist,
2437 ovs_rundir(), br->name);
2445 bridge_configure_local_iface_netdev(br, c);
2446 bridge_ofproto_controller_from_ovsrec(c, &ocs[n_ocs]);
2447 if (disable_in_band) {
2448 ocs[n_ocs].band = OFPROTO_OUT_OF_BAND;
2453 ofproto_set_controllers(br->ofproto, ocs, n_ocs);
2454 free(ocs[0].target); /* From bridge_ofproto_controller_for_mgmt(). */
2457 /* Set the fail-mode. */
2458 fail_mode = !br->cfg->fail_mode
2459 || !strcmp(br->cfg->fail_mode, "standalone")
2460 ? OFPROTO_FAIL_STANDALONE
2461 : OFPROTO_FAIL_SECURE;
2462 ofproto_set_fail_mode(br->ofproto, fail_mode);
2464 /* Configure OpenFlow controller connection snooping. */
2465 if (!ofproto_has_snoops(br->ofproto)) {
2469 sset_add_and_free(&snoops, xasprintf("punix:%s/%s.snoop",
2470 ovs_rundir(), br->name));
2471 ofproto_set_snoops(br->ofproto, &snoops);
2472 sset_destroy(&snoops);
2476 /* Port functions. */
2478 static struct port *
2479 port_create(struct bridge *br, const struct ovsrec_port *cfg)
2483 port = xzalloc(sizeof *port);
2485 port->name = xstrdup(cfg->name);
2487 list_init(&port->ifaces);
2489 hmap_insert(&br->ports, &port->hmap_node, hash_string(port->name, 0));
2491 VLOG_INFO("created port %s on bridge %s", port->name, br->name);
2497 get_port_other_config(const struct ovsrec_port *port, const char *key,
2498 const char *default_value)
2502 value = get_ovsrec_key_value(port->key_other_config,
2503 port->value_other_config,
2504 port->n_other_config, key);
2505 return value ? value : default_value;
2509 get_interface_other_config(const struct ovsrec_interface *iface,
2510 const char *key, const char *default_value)
2514 value = get_ovsrec_key_value(iface->key_other_config,
2515 iface->value_other_config,
2516 iface->n_other_config, key);
2517 return value ? value : default_value;
2520 /* Deletes interfaces from 'port' that are no longer configured for it. */
2522 port_del_ifaces(struct port *port)
2524 struct iface *iface, *next;
2525 struct sset new_ifaces;
2528 /* Collect list of new interfaces. */
2529 sset_init(&new_ifaces);
2530 for (i = 0; i < port->cfg->n_interfaces; i++) {
2531 const char *name = port->cfg->interfaces[i]->name;
2532 const char *type = port->cfg->interfaces[i]->name;
2533 if (strcmp(type, "null")) {
2534 sset_add(&new_ifaces, name);
2538 /* Get rid of deleted interfaces. */
2539 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2540 if (!sset_contains(&new_ifaces, iface->name)) {
2541 iface_destroy(iface);
2545 sset_destroy(&new_ifaces);
2548 /* Adds new interfaces to 'port' and updates 'type' and 'cfg' members of
2551 port_add_ifaces(struct port *port)
2553 struct shash new_ifaces;
2554 struct shash_node *node;
2557 /* Collect new ifaces. */
2558 shash_init(&new_ifaces);
2559 for (i = 0; i < port->cfg->n_interfaces; i++) {
2560 const struct ovsrec_interface *cfg = port->cfg->interfaces[i];
2561 if (strcmp(cfg->type, "null")
2562 && !shash_add_once(&new_ifaces, cfg->name, cfg)) {
2563 VLOG_WARN("port %s: %s specified twice as port interface",
2564 port->name, cfg->name);
2565 iface_clear_db_record(cfg);
2569 /* Create new interfaces.
2570 * Update interface types and 'cfg' members. */
2571 SHASH_FOR_EACH (node, &new_ifaces) {
2572 const struct ovsrec_interface *cfg = node->data;
2573 const char *iface_name = node->name;
2574 struct iface *iface;
2576 iface = iface_lookup(port->bridge, iface_name);
2578 iface = iface_create(port, cfg);
2583 /* Determine interface type. The local port always has type
2584 * "internal". Other ports take their type from the database and
2585 * default to "system" if none is specified. */
2586 iface->type = (!strcmp(iface_name, port->bridge->name) ? "internal"
2587 : cfg->type[0] ? cfg->type
2590 shash_destroy(&new_ifaces);
2594 port_destroy(struct port *port)
2597 struct bridge *br = port->bridge;
2598 struct iface *iface, *next;
2601 ofproto_bundle_unregister(br->ofproto, port);
2604 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2605 iface_destroy(iface);
2608 hmap_remove(&br->ports, &port->hmap_node);
2610 VLOG_INFO("destroyed port %s on bridge %s", port->name, br->name);
2617 static struct port *
2618 port_lookup(const struct bridge *br, const char *name)
2622 HMAP_FOR_EACH_WITH_HASH (port, hmap_node, hash_string(name, 0),
2624 if (!strcmp(port->name, name)) {
2632 enable_lacp(struct port *port, bool *activep)
2634 if (!port->cfg->lacp) {
2635 /* XXX when LACP implementation has been sufficiently tested, enable by
2636 * default and make active on bonded ports. */
2638 } else if (!strcmp(port->cfg->lacp, "off")) {
2640 } else if (!strcmp(port->cfg->lacp, "active")) {
2643 } else if (!strcmp(port->cfg->lacp, "passive")) {
2647 VLOG_WARN("port %s: unknown LACP mode %s",
2648 port->name, port->cfg->lacp);
2653 static struct lacp_settings *
2654 port_configure_lacp(struct port *port, struct lacp_settings *s)
2656 const char *lacp_time, *system_id;
2657 long long int custom_time;
2660 if (!enable_lacp(port, &s->active)) {
2664 s->name = port->name;
2666 system_id = get_port_other_config(port->cfg, "lacp-system-id", NULL);
2668 || sscanf(system_id, ETH_ADDR_SCAN_FMT,
2669 ETH_ADDR_SCAN_ARGS(s->id)) != ETH_ADDR_SCAN_COUNT) {
2670 memcpy(s->id, port->bridge->ea, ETH_ADDR_LEN);
2673 if (eth_addr_is_zero(s->id)) {
2674 VLOG_WARN("port %s: Invalid zero LACP system ID.", port->name);
2678 /* Prefer bondable links if unspecified. */
2679 priority = atoi(get_port_other_config(port->cfg, "lacp-system-priority",
2681 s->priority = (priority > 0 && priority <= UINT16_MAX
2683 : UINT16_MAX - !list_is_short(&port->ifaces));
2685 s->heartbeat = !strcmp(get_port_other_config(port->cfg,
2689 lacp_time = get_port_other_config(port->cfg, "lacp-time", "slow");
2690 custom_time = atoi(lacp_time);
2691 if (!strcmp(lacp_time, "fast")) {
2692 s->lacp_time = LACP_TIME_FAST;
2693 } else if (!strcmp(lacp_time, "slow")) {
2694 s->lacp_time = LACP_TIME_SLOW;
2695 } else if (custom_time > 0) {
2696 s->lacp_time = LACP_TIME_CUSTOM;
2697 s->custom_time = custom_time;
2699 s->lacp_time = LACP_TIME_SLOW;
2706 iface_configure_lacp(struct iface *iface, struct lacp_slave_settings *s)
2708 int priority, portid, key;
2710 portid = atoi(get_interface_other_config(iface->cfg, "lacp-port-id", "0"));
2711 priority = atoi(get_interface_other_config(iface->cfg,
2712 "lacp-port-priority", "0"));
2713 key = atoi(get_interface_other_config(iface->cfg, "lacp-aggregation-key",
2716 if (portid <= 0 || portid > UINT16_MAX) {
2717 portid = iface->ofp_port;
2720 if (priority <= 0 || priority > UINT16_MAX) {
2721 priority = UINT16_MAX;
2724 if (key < 0 || key > UINT16_MAX) {
2728 s->name = iface->name;
2730 s->priority = priority;
2735 port_configure_bond(struct port *port, struct bond_settings *s,
2736 uint32_t *bond_stable_ids)
2738 const char *detect_s;
2739 struct iface *iface;
2740 int miimon_interval;
2743 s->name = port->name;
2744 s->balance = BM_SLB;
2745 if (port->cfg->bond_mode) {
2746 if (!bond_mode_from_string(&s->balance, port->cfg->bond_mode)) {
2747 VLOG_WARN("port %s: unknown bond_mode %s, defaulting to %s",
2748 port->name, port->cfg->bond_mode,
2749 bond_mode_to_string(s->balance));
2752 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
2754 /* XXX: Post version 1.4.*, change the default bond_mode to
2755 * active-backup. Until then, warn that the change is imminent. */
2756 VLOG_WARN_RL(&rl, "port %s: Using the default bond_mode %s. Note that"
2757 " in future versions, the default bond_mode is expected"
2758 " to change to active-backup", port->name,
2759 bond_mode_to_string(s->balance));
2761 if (s->balance == BM_SLB && port->bridge->cfg->n_flood_vlans) {
2762 VLOG_WARN("port %s: SLB bonds are incompatible with flood_vlans, "
2763 "please use another bond type or disable flood_vlans",
2767 miimon_interval = atoi(get_port_other_config(port->cfg,
2768 "bond-miimon-interval", "0"));
2769 if (miimon_interval <= 0) {
2770 miimon_interval = 200;
2773 detect_s = get_port_other_config(port->cfg, "bond-detect-mode", "carrier");
2774 if (!strcmp(detect_s, "carrier")) {
2775 miimon_interval = 0;
2776 } else if (strcmp(detect_s, "miimon")) {
2777 VLOG_WARN("port %s: unsupported bond-detect-mode %s, "
2778 "defaulting to carrier", port->name, detect_s);
2779 miimon_interval = 0;
2782 s->up_delay = MAX(0, port->cfg->bond_updelay);
2783 s->down_delay = MAX(0, port->cfg->bond_downdelay);
2784 s->basis = atoi(get_port_other_config(port->cfg, "bond-hash-basis", "0"));
2785 s->rebalance_interval = atoi(
2786 get_port_other_config(port->cfg, "bond-rebalance-interval", "10000"));
2787 if (s->rebalance_interval < 1000) {
2788 s->rebalance_interval = 1000;
2791 s->fake_iface = port->cfg->bond_fake_iface;
2794 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
2795 long long stable_id;
2797 stable_id = atoll(get_interface_other_config(iface->cfg,
2798 "bond-stable-id", "0"));
2799 if (stable_id <= 0 || stable_id >= UINT32_MAX) {
2800 stable_id = iface->ofp_port;
2802 bond_stable_ids[i++] = stable_id;
2804 netdev_set_miimon_interval(iface->netdev, miimon_interval);
2808 /* Returns true if 'port' is synthetic, that is, if we constructed it locally
2809 * instead of obtaining it from the database. */
2811 port_is_synthetic(const struct port *port)
2813 return ovsdb_idl_row_is_synthetic(&port->cfg->header_);
2816 /* Interface functions. */
2818 static struct iface *
2819 iface_create(struct port *port, const struct ovsrec_interface *if_cfg)
2821 struct bridge *br = port->bridge;
2822 struct iface *iface;
2823 char *name = if_cfg->name;
2825 iface = xzalloc(sizeof *iface);
2827 iface->name = xstrdup(name);
2828 iface->ofp_port = -1;
2829 iface->tag = tag_create_random();
2830 iface->netdev = NULL;
2831 iface->cfg = if_cfg;
2833 hmap_insert(&br->iface_by_name, &iface->name_node, hash_string(name, 0));
2835 list_push_back(&port->ifaces, &iface->port_elem);
2837 VLOG_DBG("attached network device %s to port %s", iface->name, port->name);
2843 iface_destroy(struct iface *iface)
2846 struct port *port = iface->port;
2847 struct bridge *br = port->bridge;
2849 if (br->ofproto && iface->ofp_port >= 0) {
2850 ofproto_port_unregister(br->ofproto, iface->ofp_port);
2853 if (iface->ofp_port >= 0) {
2854 hmap_remove(&br->ifaces, &iface->ofp_port_node);
2857 list_remove(&iface->port_elem);
2858 hmap_remove(&br->iface_by_name, &iface->name_node);
2860 netdev_close(iface->netdev);
2867 static struct iface *
2868 iface_lookup(const struct bridge *br, const char *name)
2870 struct iface *iface;
2872 HMAP_FOR_EACH_WITH_HASH (iface, name_node, hash_string(name, 0),
2873 &br->iface_by_name) {
2874 if (!strcmp(iface->name, name)) {
2882 static struct iface *
2883 iface_find(const char *name)
2885 const struct bridge *br;
2887 HMAP_FOR_EACH (br, node, &all_bridges) {
2888 struct iface *iface = iface_lookup(br, name);
2897 static struct iface *
2898 iface_from_ofp_port(const struct bridge *br, uint16_t ofp_port)
2900 struct iface *iface;
2902 HMAP_FOR_EACH_IN_BUCKET (iface, ofp_port_node,
2903 hash_int(ofp_port, 0), &br->ifaces) {
2904 if (iface->ofp_port == ofp_port) {
2911 /* Set Ethernet address of 'iface', if one is specified in the configuration
2914 iface_set_mac(struct iface *iface)
2916 uint8_t ea[ETH_ADDR_LEN];
2918 if (!strcmp(iface->type, "internal")
2919 && iface->cfg->mac && eth_addr_from_string(iface->cfg->mac, ea)) {
2920 if (iface->ofp_port == OFPP_LOCAL) {
2921 VLOG_ERR("interface %s: ignoring mac in Interface record "
2922 "(use Bridge record to set local port's mac)",
2924 } else if (eth_addr_is_multicast(ea)) {
2925 VLOG_ERR("interface %s: cannot set MAC to multicast address",
2928 int error = netdev_set_etheraddr(iface->netdev, ea);
2930 VLOG_ERR("interface %s: setting MAC failed (%s)",
2931 iface->name, strerror(error));
2937 /* Sets the ofport column of 'if_cfg' to 'ofport'. */
2939 iface_set_ofport(const struct ovsrec_interface *if_cfg, int64_t ofport)
2941 if (if_cfg && !ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
2942 ovsrec_interface_set_ofport(if_cfg, &ofport, 1);
2946 /* Clears all of the fields in 'if_cfg' that indicate interface status, and
2947 * sets the "ofport" field to -1.
2949 * This is appropriate when 'if_cfg''s interface cannot be created or is
2950 * otherwise invalid. */
2952 iface_clear_db_record(const struct ovsrec_interface *if_cfg)
2954 if (!ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
2955 iface_set_ofport(if_cfg, -1);
2956 ovsrec_interface_set_status(if_cfg, NULL, NULL, 0);
2957 ovsrec_interface_set_admin_state(if_cfg, NULL);
2958 ovsrec_interface_set_duplex(if_cfg, NULL);
2959 ovsrec_interface_set_link_speed(if_cfg, NULL, 0);
2960 ovsrec_interface_set_link_state(if_cfg, NULL);
2961 ovsrec_interface_set_mtu(if_cfg, NULL, 0);
2962 ovsrec_interface_set_cfm_fault(if_cfg, NULL, 0);
2963 ovsrec_interface_set_cfm_remote_mpids(if_cfg, NULL, 0);
2964 ovsrec_interface_set_lacp_current(if_cfg, NULL, 0);
2965 ovsrec_interface_set_statistics(if_cfg, NULL, NULL, 0);
2969 /* Adds the 'n' key-value pairs in 'keys' in 'values' to 'shash'.
2971 * The value strings in '*shash' are taken directly from values[], not copied,
2972 * so the caller should not modify or free them. */
2974 shash_from_ovs_idl_map(char **keys, char **values, size_t n,
2975 struct shash *shash)
2980 for (i = 0; i < n; i++) {
2981 shash_add(shash, keys[i], values[i]);
2985 /* Creates 'keys' and 'values' arrays from 'shash'.
2987 * Sets 'keys' and 'values' to heap allocated arrays representing the key-value
2988 * pairs in 'shash'. The caller takes ownership of 'keys' and 'values'. They
2989 * are populated with with strings taken directly from 'shash' and thus have
2990 * the same ownership of the key-value pairs in shash.
2993 shash_to_ovs_idl_map(struct shash *shash,
2994 char ***keys, char ***values, size_t *n)
2998 struct shash_node *sn;
3000 count = shash_count(shash);
3002 k = xmalloc(count * sizeof *k);
3003 v = xmalloc(count * sizeof *v);
3006 SHASH_FOR_EACH(sn, shash) {
3017 struct iface_delete_queues_cbdata {
3018 struct netdev *netdev;
3019 const struct ovsdb_datum *queues;
3023 queue_ids_include(const struct ovsdb_datum *queues, int64_t target)
3025 union ovsdb_atom atom;
3027 atom.integer = target;
3028 return ovsdb_datum_find_key(queues, &atom, OVSDB_TYPE_INTEGER) != UINT_MAX;
3032 iface_delete_queues(unsigned int queue_id,
3033 const struct shash *details OVS_UNUSED, void *cbdata_)
3035 struct iface_delete_queues_cbdata *cbdata = cbdata_;
3037 if (!queue_ids_include(cbdata->queues, queue_id)) {
3038 netdev_delete_queue(cbdata->netdev, queue_id);
3043 iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos)
3045 struct ofpbuf queues_buf;
3047 ofpbuf_init(&queues_buf, 0);
3049 if (!qos || qos->type[0] == '\0' || qos->n_queues < 1) {
3050 netdev_set_qos(iface->netdev, NULL, NULL);
3052 struct iface_delete_queues_cbdata cbdata;
3053 struct shash details;
3057 /* Configure top-level Qos for 'iface'. */
3058 shash_from_ovs_idl_map(qos->key_other_config, qos->value_other_config,
3059 qos->n_other_config, &details);
3060 netdev_set_qos(iface->netdev, qos->type, &details);
3061 shash_destroy(&details);
3063 /* Deconfigure queues that were deleted. */
3064 cbdata.netdev = iface->netdev;
3065 cbdata.queues = ovsrec_qos_get_queues(qos, OVSDB_TYPE_INTEGER,
3067 netdev_dump_queues(iface->netdev, iface_delete_queues, &cbdata);
3069 /* Configure queues for 'iface'. */
3071 for (i = 0; i < qos->n_queues; i++) {
3072 const struct ovsrec_queue *queue = qos->value_queues[i];
3073 unsigned int queue_id = qos->key_queues[i];
3075 if (queue_id == 0) {
3079 if (queue->n_dscp == 1) {
3080 struct ofproto_port_queue *port_queue;
3082 port_queue = ofpbuf_put_uninit(&queues_buf,
3083 sizeof *port_queue);
3084 port_queue->queue = queue_id;
3085 port_queue->dscp = queue->dscp[0];
3088 shash_from_ovs_idl_map(queue->key_other_config,
3089 queue->value_other_config,
3090 queue->n_other_config, &details);
3091 netdev_set_queue(iface->netdev, queue_id, &details);
3092 shash_destroy(&details);
3095 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
3096 VLOG_WARN_RL(&rl, "interface %s: QoS configured without a default "
3097 "queue (queue 0). Packets not directed to a "
3098 "correctly configured queue may be dropped.",
3103 if (iface->ofp_port >= 0) {
3104 const struct ofproto_port_queue *port_queues = queues_buf.data;
3105 size_t n_queues = queues_buf.size / sizeof *port_queues;
3107 ofproto_port_set_queues(iface->port->bridge->ofproto, iface->ofp_port,
3108 port_queues, n_queues);
3111 netdev_set_policing(iface->netdev,
3112 iface->cfg->ingress_policing_rate,
3113 iface->cfg->ingress_policing_burst);
3115 ofpbuf_uninit(&queues_buf);
3119 iface_configure_cfm(struct iface *iface)
3121 const struct ovsrec_interface *cfg = iface->cfg;
3122 const char *extended_str, *opstate_str;
3123 struct cfm_settings s;
3125 if (!cfg->n_cfm_mpid) {
3126 ofproto_port_clear_cfm(iface->port->bridge->ofproto, iface->ofp_port);
3130 s.mpid = *cfg->cfm_mpid;
3131 s.interval = atoi(get_interface_other_config(iface->cfg, "cfm_interval",
3133 s.ccm_vlan = atoi(get_interface_other_config(iface->cfg, "cfm_ccm_vlan",
3135 if (s.interval <= 0) {
3139 extended_str = get_interface_other_config(iface->cfg, "cfm_extended",
3141 s.extended = !strcasecmp("true", extended_str);
3143 opstate_str = get_interface_other_config(iface->cfg, "cfm_opstate", "up");
3144 s.opup = !strcasecmp("up", opstate_str);
3146 ofproto_port_set_cfm(iface->port->bridge->ofproto, iface->ofp_port, &s);
3149 /* Returns true if 'iface' is synthetic, that is, if we constructed it locally
3150 * instead of obtaining it from the database. */
3152 iface_is_synthetic(const struct iface *iface)
3154 return ovsdb_idl_row_is_synthetic(&iface->cfg->header_);
3157 /* Port mirroring. */
3159 static struct mirror *
3160 mirror_find_by_uuid(struct bridge *br, const struct uuid *uuid)
3164 HMAP_FOR_EACH_IN_BUCKET (m, hmap_node, uuid_hash(uuid), &br->mirrors) {
3165 if (uuid_equals(uuid, &m->uuid)) {
3173 bridge_configure_mirrors(struct bridge *br)
3175 const struct ovsdb_datum *mc;
3176 unsigned long *flood_vlans;
3177 struct mirror *m, *next;
3180 /* Get rid of deleted mirrors. */
3181 mc = ovsrec_bridge_get_mirrors(br->cfg, OVSDB_TYPE_UUID);
3182 HMAP_FOR_EACH_SAFE (m, next, hmap_node, &br->mirrors) {
3183 union ovsdb_atom atom;
3185 atom.uuid = m->uuid;
3186 if (ovsdb_datum_find_key(mc, &atom, OVSDB_TYPE_UUID) == UINT_MAX) {
3191 /* Add new mirrors and reconfigure existing ones. */
3192 for (i = 0; i < br->cfg->n_mirrors; i++) {
3193 const struct ovsrec_mirror *cfg = br->cfg->mirrors[i];
3194 struct mirror *m = mirror_find_by_uuid(br, &cfg->header_.uuid);
3196 m = mirror_create(br, cfg);
3199 if (!mirror_configure(m)) {
3204 /* Update flooded vlans (for RSPAN). */
3205 flood_vlans = vlan_bitmap_from_array(br->cfg->flood_vlans,
3206 br->cfg->n_flood_vlans);
3207 ofproto_set_flood_vlans(br->ofproto, flood_vlans);
3208 bitmap_free(flood_vlans);
3211 static struct mirror *
3212 mirror_create(struct bridge *br, const struct ovsrec_mirror *cfg)
3216 m = xzalloc(sizeof *m);
3217 m->uuid = cfg->header_.uuid;
3218 hmap_insert(&br->mirrors, &m->hmap_node, uuid_hash(&m->uuid));
3220 m->name = xstrdup(cfg->name);
3226 mirror_destroy(struct mirror *m)
3229 struct bridge *br = m->bridge;
3232 ofproto_mirror_unregister(br->ofproto, m);
3235 hmap_remove(&br->mirrors, &m->hmap_node);
3242 mirror_collect_ports(struct mirror *m,
3243 struct ovsrec_port **in_ports, int n_in_ports,
3244 void ***out_portsp, size_t *n_out_portsp)
3246 void **out_ports = xmalloc(n_in_ports * sizeof *out_ports);
3247 size_t n_out_ports = 0;
3250 for (i = 0; i < n_in_ports; i++) {
3251 const char *name = in_ports[i]->name;
3252 struct port *port = port_lookup(m->bridge, name);
3254 out_ports[n_out_ports++] = port;
3256 VLOG_WARN("bridge %s: mirror %s cannot match on nonexistent "
3257 "port %s", m->bridge->name, m->name, name);
3260 *out_portsp = out_ports;
3261 *n_out_portsp = n_out_ports;
3265 mirror_configure(struct mirror *m)
3267 const struct ovsrec_mirror *cfg = m->cfg;
3268 struct ofproto_mirror_settings s;
3271 if (strcmp(cfg->name, m->name)) {
3273 m->name = xstrdup(cfg->name);
3277 /* Get output port or VLAN. */
3278 if (cfg->output_port) {
3279 s.out_bundle = port_lookup(m->bridge, cfg->output_port->name);
3280 if (!s.out_bundle) {
3281 VLOG_ERR("bridge %s: mirror %s outputs to port not on bridge",
3282 m->bridge->name, m->name);
3285 s.out_vlan = UINT16_MAX;
3287 if (cfg->output_vlan) {
3288 VLOG_ERR("bridge %s: mirror %s specifies both output port and "
3289 "output vlan; ignoring output vlan",
3290 m->bridge->name, m->name);
3292 } else if (cfg->output_vlan) {
3293 /* The database should prevent invalid VLAN values. */
3294 s.out_bundle = NULL;
3295 s.out_vlan = *cfg->output_vlan;
3297 VLOG_ERR("bridge %s: mirror %s does not specify output; ignoring",
3298 m->bridge->name, m->name);
3302 /* Get port selection. */
3303 if (cfg->select_all) {
3304 size_t n_ports = hmap_count(&m->bridge->ports);
3305 void **ports = xmalloc(n_ports * sizeof *ports);
3310 HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) {
3320 /* Get ports, dropping ports that don't exist.
3321 * The IDL ensures that there are no duplicates. */
3322 mirror_collect_ports(m, cfg->select_src_port, cfg->n_select_src_port,
3323 &s.srcs, &s.n_srcs);
3324 mirror_collect_ports(m, cfg->select_dst_port, cfg->n_select_dst_port,
3325 &s.dsts, &s.n_dsts);
3328 /* Get VLAN selection. */
3329 s.src_vlans = vlan_bitmap_from_array(cfg->select_vlan, cfg->n_select_vlan);
3332 ofproto_mirror_register(m->bridge->ofproto, m, &s);
3335 if (s.srcs != s.dsts) {
3344 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
3346 * This is deprecated. It is only for compatibility with broken device drivers
3347 * in old versions of Linux that do not properly support VLANs when VLAN
3348 * devices are not used. When broken device drivers are no longer in
3349 * widespread use, we will delete these interfaces. */
3351 static void **blocks;
3352 static size_t n_blocks, allocated_blocks;
3354 /* Adds 'block' to a list of blocks that have to be freed with free() when the
3355 * VLAN splinters are reconfigured. */
3357 register_block(void *block)
3359 if (n_blocks >= allocated_blocks) {
3360 blocks = x2nrealloc(blocks, &allocated_blocks, sizeof *blocks);
3362 blocks[n_blocks++] = block;
3365 /* Frees all of the blocks registered with register_block(). */
3367 free_registered_blocks(void)
3371 for (i = 0; i < n_blocks; i++) {
3377 /* Returns true if VLAN splinters are enabled on 'iface_cfg', false
3380 vlan_splinters_is_enabled(const struct ovsrec_interface *iface_cfg)
3384 value = get_interface_other_config(iface_cfg, "enable-vlan-splinters", "");
3385 return !strcmp(value, "true");
3388 /* Figures out the set of VLANs that are in use for the purpose of VLAN
3391 * If VLAN splinters are enabled on at least one interface and any VLANs are in
3392 * use, returns a 4096-bit bitmap with a 1-bit for each in-use VLAN (bits 0 and
3393 * 4095 will not be set). The caller is responsible for freeing the bitmap,
3396 * If VLANs splinters are not enabled on any interface or if no VLANs are in
3397 * use, returns NULL.
3399 * Updates 'vlan_splinters_enabled_anywhere'. */
3400 static unsigned long int *
3401 collect_splinter_vlans(const struct ovsrec_open_vswitch *ovs_cfg)
3403 unsigned long int *splinter_vlans;
3404 struct sset splinter_ifaces;
3405 const char *real_dev_name;
3406 struct shash *real_devs;
3407 struct shash_node *node;
3411 /* Free space allocated for synthesized ports and interfaces, since we're
3412 * in the process of reconstructing all of them. */
3413 free_registered_blocks();
3415 splinter_vlans = bitmap_allocate(4096);
3416 sset_init(&splinter_ifaces);
3417 vlan_splinters_enabled_anywhere = false;
3418 for (i = 0; i < ovs_cfg->n_bridges; i++) {
3419 struct ovsrec_bridge *br_cfg = ovs_cfg->bridges[i];
3422 for (j = 0; j < br_cfg->n_ports; j++) {
3423 struct ovsrec_port *port_cfg = br_cfg->ports[j];
3426 for (k = 0; k < port_cfg->n_interfaces; k++) {
3427 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[k];
3429 if (vlan_splinters_is_enabled(iface_cfg)) {
3430 vlan_splinters_enabled_anywhere = true;
3431 sset_add(&splinter_ifaces, iface_cfg->name);
3432 vlan_bitmap_from_array__(port_cfg->trunks,
3438 if (port_cfg->tag && *port_cfg->tag > 0 && *port_cfg->tag < 4095) {
3439 bitmap_set1(splinter_vlans, *port_cfg->tag);
3444 if (!vlan_splinters_enabled_anywhere) {
3445 free(splinter_vlans);
3446 sset_destroy(&splinter_ifaces);
3450 HMAP_FOR_EACH (br, node, &all_bridges) {
3452 ofproto_get_vlan_usage(br->ofproto, splinter_vlans);
3456 /* Don't allow VLANs 0 or 4095 to be splintered. VLAN 0 should appear on
3457 * the real device. VLAN 4095 is reserved and Linux doesn't allow a VLAN
3458 * device to be created for it. */
3459 bitmap_set0(splinter_vlans, 0);
3460 bitmap_set0(splinter_vlans, 4095);
3462 /* Delete all VLAN devices that we don't need. */
3464 real_devs = vlandev_get_real_devs();
3465 SHASH_FOR_EACH (node, real_devs) {
3466 const struct vlan_real_dev *real_dev = node->data;
3467 const struct vlan_dev *vlan_dev;
3468 bool real_dev_has_splinters;
3470 real_dev_has_splinters = sset_contains(&splinter_ifaces,
3472 HMAP_FOR_EACH (vlan_dev, hmap_node, &real_dev->vlan_devs) {
3473 if (!real_dev_has_splinters
3474 || !bitmap_is_set(splinter_vlans, vlan_dev->vid)) {
3475 struct netdev *netdev;
3477 if (!netdev_open(vlan_dev->name, "system", &netdev)) {
3478 if (!netdev_get_in4(netdev, NULL, NULL) ||
3479 !netdev_get_in6(netdev, NULL)) {
3480 vlandev_del(vlan_dev->name);
3482 /* It has an IP address configured, so we don't own
3483 * it. Don't delete it. */
3485 netdev_close(netdev);
3492 /* Add all VLAN devices that we need. */
3493 SSET_FOR_EACH (real_dev_name, &splinter_ifaces) {
3496 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
3497 if (!vlandev_get_name(real_dev_name, vid)) {
3498 vlandev_add(real_dev_name, vid);
3505 sset_destroy(&splinter_ifaces);
3507 if (bitmap_scan(splinter_vlans, 0, 4096) >= 4096) {
3508 free(splinter_vlans);
3511 return splinter_vlans;
3514 /* Pushes the configure of VLAN splinter port 'port' (e.g. eth0.9) down to
3517 configure_splinter_port(struct port *port)
3519 struct ofproto *ofproto = port->bridge->ofproto;
3520 uint16_t realdev_ofp_port;
3521 const char *realdev_name;
3522 struct iface *vlandev, *realdev;
3524 ofproto_bundle_unregister(port->bridge->ofproto, port);
3526 vlandev = CONTAINER_OF(list_front(&port->ifaces), struct iface,
3529 realdev_name = get_port_other_config(port->cfg, "realdev", NULL);
3530 realdev = iface_lookup(port->bridge, realdev_name);
3531 realdev_ofp_port = realdev ? realdev->ofp_port : 0;
3533 ofproto_port_set_realdev(ofproto, vlandev->ofp_port, realdev_ofp_port,
3537 static struct ovsrec_port *
3538 synthesize_splinter_port(const char *real_dev_name,
3539 const char *vlan_dev_name, int vid)
3541 struct ovsrec_interface *iface;
3542 struct ovsrec_port *port;
3544 iface = xzalloc(sizeof *iface);
3545 iface->name = xstrdup(vlan_dev_name);
3546 iface->type = "system";
3548 port = xzalloc(sizeof *port);
3549 port->interfaces = xmemdup(&iface, sizeof iface);
3550 port->n_interfaces = 1;
3551 port->name = xstrdup(vlan_dev_name);
3552 port->vlan_mode = "splinter";
3553 port->tag = xmalloc(sizeof *port->tag);
3555 port->key_other_config = xmalloc(sizeof *port->key_other_config);
3556 port->key_other_config[0] = "realdev";
3557 port->value_other_config = xmalloc(sizeof *port->value_other_config);
3558 port->value_other_config[0] = xstrdup(real_dev_name);
3559 port->n_other_config = 1;
3561 register_block(iface);
3562 register_block(iface->name);
3563 register_block(port);
3564 register_block(port->interfaces);
3565 register_block(port->name);
3566 register_block(port->tag);
3567 register_block(port->key_other_config);
3568 register_block(port->value_other_config);
3569 register_block(port->value_other_config[0]);
3574 /* For each interface with 'br' that has VLAN splinters enabled, adds a
3575 * corresponding ovsrec_port to 'ports' for each splinter VLAN marked with a
3576 * 1-bit in the 'splinter_vlans' bitmap. */
3578 add_vlan_splinter_ports(struct bridge *br,
3579 const unsigned long int *splinter_vlans,
3580 struct shash *ports)
3584 /* We iterate through 'br->cfg->ports' instead of 'ports' here because
3585 * we're modifying 'ports'. */
3586 for (i = 0; i < br->cfg->n_ports; i++) {
3587 const char *name = br->cfg->ports[i]->name;
3588 struct ovsrec_port *port_cfg = shash_find_data(ports, name);
3591 for (j = 0; j < port_cfg->n_interfaces; j++) {
3592 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[j];
3594 if (vlan_splinters_is_enabled(iface_cfg)) {
3595 const char *real_dev_name;
3598 real_dev_name = iface_cfg->name;
3599 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
3600 const char *vlan_dev_name;
3602 vlan_dev_name = vlandev_get_name(real_dev_name, vid);
3604 && !shash_find(ports, vlan_dev_name)) {
3605 shash_add(ports, vlan_dev_name,
3606 synthesize_splinter_port(
3607 real_dev_name, vlan_dev_name, vid));
3616 mirror_refresh_stats(struct mirror *m)
3618 struct ofproto *ofproto = m->bridge->ofproto;
3619 uint64_t tx_packets, tx_bytes;
3622 size_t stat_cnt = 0;
3624 if (ofproto_mirror_get_stats(ofproto, m, &tx_packets, &tx_bytes)) {
3625 ovsrec_mirror_set_statistics(m->cfg, NULL, NULL, 0);
3629 if (tx_packets != UINT64_MAX) {
3630 keys[stat_cnt] = "tx_packets";
3631 values[stat_cnt] = tx_packets;
3634 if (tx_bytes != UINT64_MAX) {
3635 keys[stat_cnt] = "tx_bytes";
3636 values[stat_cnt] = tx_bytes;
3640 ovsrec_mirror_set_statistics(m->cfg, keys, values, stat_cnt);