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"
35 #include "mac-learning.h"
37 #include "ofp-print.h"
39 #include "ofproto/ofproto.h"
40 #include "poll-loop.h"
43 #include "socket-util.h"
45 #include "stream-ssl.h"
47 #include "system-stats.h"
52 #include "vswitchd/vswitch-idl.h"
53 #include "xenserver.h"
55 #include "sflow_api.h"
56 #include "vlan-bitmap.h"
58 VLOG_DEFINE_THIS_MODULE(bridge);
60 COVERAGE_DEFINE(bridge_reconfigure);
63 /* These members are always valid. */
64 struct list port_elem; /* Element in struct port's "ifaces" list. */
65 struct hmap_node name_node; /* In struct bridge's "iface_by_name" hmap. */
66 struct port *port; /* Containing port. */
67 char *name; /* Host network device name. */
68 tag_type tag; /* Tag associated with this interface. */
70 /* These members are valid only after bridge_reconfigure() causes them to
72 struct hmap_node ofp_port_node; /* In struct bridge's "ifaces" hmap. */
73 int ofp_port; /* OpenFlow port number, -1 if unknown. */
74 struct netdev *netdev; /* Network device. */
75 const char *type; /* Usually same as cfg->type. */
76 const struct ovsrec_interface *cfg;
80 struct uuid uuid; /* UUID of this "mirror" record in database. */
81 struct hmap_node hmap_node; /* In struct bridge's "mirrors" hmap. */
82 struct bridge *bridge;
84 const struct ovsrec_mirror *cfg;
88 struct bridge *bridge;
89 struct hmap_node hmap_node; /* Element in struct bridge's "ports" hmap. */
92 const struct ovsrec_port *cfg;
94 /* An ordinary bridge port has 1 interface.
95 * A bridge port for bonding has at least 2 interfaces. */
96 struct list ifaces; /* List of "struct iface"s. */
100 struct hmap_node node; /* In 'all_bridges'. */
101 char *name; /* User-specified arbitrary name. */
102 char *type; /* Datapath type. */
103 uint8_t ea[ETH_ADDR_LEN]; /* Bridge Ethernet Address. */
104 uint8_t default_ea[ETH_ADDR_LEN]; /* Default MAC. */
105 const struct ovsrec_bridge *cfg;
107 /* OpenFlow switch processing. */
108 struct ofproto *ofproto; /* OpenFlow switch. */
111 struct hmap ports; /* "struct port"s indexed by name. */
112 struct hmap ifaces; /* "struct iface"s indexed by ofp_port. */
113 struct hmap iface_by_name; /* "struct iface"s indexed by name. */
115 /* Port mirroring. */
116 struct hmap mirrors; /* "struct mirror" indexed by UUID. */
118 /* Synthetic local port if necessary. */
119 struct ovsrec_port synth_local_port;
120 struct ovsrec_interface synth_local_iface;
121 struct ovsrec_interface *synth_local_ifacep;
124 /* All bridges, indexed by name. */
125 static struct hmap all_bridges = HMAP_INITIALIZER(&all_bridges);
127 /* OVSDB IDL used to obtain configuration. */
128 static struct ovsdb_idl *idl;
130 /* Each time this timer expires, the bridge fetches systems and interface
131 * statistics and pushes them into the database. */
132 #define STATS_INTERVAL (5 * 1000) /* In milliseconds. */
133 static long long int stats_timer = LLONG_MIN;
135 /* Stores the time after which rate limited statistics may be written to the
136 * database. Only updated when changes to the database require rate limiting.
138 #define DB_LIMIT_INTERVAL (1 * 1000) /* In milliseconds. */
139 static long long int db_limiter = LLONG_MIN;
141 static void add_del_bridges(const struct ovsrec_open_vswitch *);
142 static void bridge_del_ofprotos(void);
143 static bool bridge_add_ofprotos(struct bridge *);
144 static void bridge_create(const struct ovsrec_bridge *);
145 static void bridge_destroy(struct bridge *);
146 static struct bridge *bridge_lookup(const char *name);
147 static unixctl_cb_func bridge_unixctl_dump_flows;
148 static unixctl_cb_func bridge_unixctl_reconnect;
149 static size_t bridge_get_controllers(const struct bridge *br,
150 struct ovsrec_controller ***controllersp);
151 static void bridge_add_del_ports(struct bridge *,
152 const unsigned long int *splinter_vlans);
153 static void bridge_add_ofproto_ports(struct bridge *);
154 static void bridge_del_ofproto_ports(struct bridge *);
155 static void bridge_refresh_ofp_port(struct bridge *);
156 static void bridge_configure_datapath_id(struct bridge *);
157 static void bridge_configure_flow_eviction_threshold(struct bridge *);
158 static void bridge_configure_netflow(struct bridge *);
159 static void bridge_configure_forward_bpdu(struct bridge *);
160 static void bridge_configure_mac_idle_time(struct bridge *);
161 static void bridge_configure_sflow(struct bridge *, int *sflow_bridge_number);
162 static void bridge_configure_stp(struct bridge *);
163 static void bridge_configure_remotes(struct bridge *,
164 const struct sockaddr_in *managers,
166 static void bridge_pick_local_hw_addr(struct bridge *,
167 uint8_t ea[ETH_ADDR_LEN],
168 struct iface **hw_addr_iface);
169 static uint64_t bridge_pick_datapath_id(struct bridge *,
170 const uint8_t bridge_ea[ETH_ADDR_LEN],
171 struct iface *hw_addr_iface);
172 static const char *bridge_get_other_config(const struct ovsrec_bridge *,
174 static const char *get_port_other_config(const struct ovsrec_port *,
176 const char *default_value);
177 static uint64_t dpid_from_hash(const void *, size_t nbytes);
178 static bool bridge_has_bond_fake_iface(const struct bridge *,
180 static bool port_is_bond_fake_iface(const struct port *);
182 static unixctl_cb_func qos_unixctl_show;
184 static struct port *port_create(struct bridge *, const struct ovsrec_port *);
185 static void port_add_ifaces(struct port *);
186 static void port_del_ifaces(struct port *);
187 static void port_destroy(struct port *);
188 static struct port *port_lookup(const struct bridge *, const char *name);
189 static void port_configure(struct port *);
190 static struct lacp_settings *port_configure_lacp(struct port *,
191 struct lacp_settings *);
192 static void port_configure_bond(struct port *, struct bond_settings *,
193 uint32_t *bond_stable_ids);
194 static bool port_is_synthetic(const struct port *);
196 static void bridge_configure_mirrors(struct bridge *);
197 static struct mirror *mirror_create(struct bridge *,
198 const struct ovsrec_mirror *);
199 static void mirror_destroy(struct mirror *);
200 static bool mirror_configure(struct mirror *);
201 static void mirror_refresh_stats(struct mirror *);
203 static void iface_configure_lacp(struct iface *, struct lacp_slave_settings *);
204 static struct iface *iface_create(struct port *port,
205 const struct ovsrec_interface *if_cfg);
206 static void iface_destroy(struct iface *);
207 static struct iface *iface_lookup(const struct bridge *, const char *name);
208 static struct iface *iface_find(const char *name);
209 static struct iface *iface_from_ofp_port(const struct bridge *,
211 static void iface_set_mac(struct iface *);
212 static void iface_set_ofport(const struct ovsrec_interface *, int64_t ofport);
213 static void iface_clear_db_record(const struct ovsrec_interface *if_cfg);
214 static void iface_configure_qos(struct iface *, const struct ovsrec_qos *);
215 static void iface_configure_cfm(struct iface *);
216 static void iface_refresh_cfm_stats(struct iface *);
217 static void iface_refresh_stats(struct iface *);
218 static void iface_refresh_status(struct iface *);
219 static bool iface_is_synthetic(const struct iface *);
220 static const char *get_interface_other_config(const struct ovsrec_interface *,
222 const char *default_value);
224 static void shash_from_ovs_idl_map(char **keys, char **values, size_t n,
226 static void shash_to_ovs_idl_map(struct shash *,
227 char ***keys, char ***values, size_t *n);
229 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
231 * This is deprecated. It is only for compatibility with broken device drivers
232 * in old versions of Linux that do not properly support VLANs when VLAN
233 * devices are not used. When broken device drivers are no longer in
234 * widespread use, we will delete these interfaces. */
236 /* True if VLAN splinters are enabled on any interface, false otherwise.*/
237 static bool vlan_splinters_enabled_anywhere;
239 static bool vlan_splinters_is_enabled(const struct ovsrec_interface *);
240 static unsigned long int *collect_splinter_vlans(
241 const struct ovsrec_open_vswitch *);
242 static void configure_splinter_port(struct port *);
243 static void add_vlan_splinter_ports(struct bridge *,
244 const unsigned long int *splinter_vlans,
245 struct shash *ports);
247 /* Public functions. */
249 /* Initializes the bridge module, configuring it to obtain its configuration
250 * from an OVSDB server accessed over 'remote', which should be a string in a
251 * form acceptable to ovsdb_idl_create(). */
253 bridge_init(const char *remote)
255 /* Create connection to database. */
256 idl = ovsdb_idl_create(remote, &ovsrec_idl_class, true);
257 ovsdb_idl_set_lock(idl, "ovs_vswitchd");
259 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_cur_cfg);
260 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_statistics);
261 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_external_ids);
262 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_ovs_version);
263 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_db_version);
264 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_type);
265 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_version);
267 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_datapath_id);
268 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_status);
269 ovsdb_idl_omit(idl, &ovsrec_bridge_col_external_ids);
271 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_status);
272 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_statistics);
273 ovsdb_idl_omit(idl, &ovsrec_port_col_external_ids);
274 ovsdb_idl_omit(idl, &ovsrec_port_col_fake_bridge);
276 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_admin_state);
277 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_duplex);
278 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_speed);
279 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_state);
280 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_resets);
281 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mtu);
282 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ofport);
283 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_statistics);
284 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_status);
285 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault);
286 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_remote_mpids);
287 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_lacp_current);
288 ovsdb_idl_omit(idl, &ovsrec_interface_col_external_ids);
290 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_is_connected);
291 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_role);
292 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_status);
293 ovsdb_idl_omit(idl, &ovsrec_controller_col_external_ids);
295 ovsdb_idl_omit(idl, &ovsrec_qos_col_external_ids);
297 ovsdb_idl_omit(idl, &ovsrec_queue_col_external_ids);
299 ovsdb_idl_omit(idl, &ovsrec_mirror_col_external_ids);
300 ovsdb_idl_omit_alert(idl, &ovsrec_mirror_col_statistics);
302 ovsdb_idl_omit(idl, &ovsrec_netflow_col_external_ids);
304 ovsdb_idl_omit(idl, &ovsrec_sflow_col_external_ids);
306 ovsdb_idl_omit(idl, &ovsrec_manager_col_external_ids);
307 ovsdb_idl_omit(idl, &ovsrec_manager_col_inactivity_probe);
308 ovsdb_idl_omit(idl, &ovsrec_manager_col_is_connected);
309 ovsdb_idl_omit(idl, &ovsrec_manager_col_max_backoff);
310 ovsdb_idl_omit(idl, &ovsrec_manager_col_status);
312 ovsdb_idl_omit(idl, &ovsrec_ssl_col_external_ids);
314 /* Register unixctl commands. */
315 unixctl_command_register("qos/show", "interface", 1, 1,
316 qos_unixctl_show, NULL);
317 unixctl_command_register("bridge/dump-flows", "bridge", 1, 1,
318 bridge_unixctl_dump_flows, NULL);
319 unixctl_command_register("bridge/reconnect", "[bridge]", 0, 1,
320 bridge_unixctl_reconnect, NULL);
329 struct bridge *br, *next_br;
331 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
334 ovsdb_idl_destroy(idl);
337 /* Looks at the list of managers in 'ovs_cfg' and extracts their remote IP
338 * addresses and ports into '*managersp' and '*n_managersp'. The caller is
339 * responsible for freeing '*managersp' (with free()).
341 * You may be asking yourself "why does ovs-vswitchd care?", because
342 * ovsdb-server is responsible for connecting to the managers, and ovs-vswitchd
343 * should not be and in fact is not directly involved in that. But
344 * ovs-vswitchd needs to make sure that ovsdb-server can reach the managers, so
345 * it has to tell in-band control where the managers are to enable that.
346 * (Thus, only managers connected in-band are collected.)
349 collect_in_band_managers(const struct ovsrec_open_vswitch *ovs_cfg,
350 struct sockaddr_in **managersp, size_t *n_managersp)
352 struct sockaddr_in *managers = NULL;
353 size_t n_managers = 0;
357 /* Collect all of the potential targets from the "targets" columns of the
358 * rows pointed to by "manager_options", excluding any that are
361 for (i = 0; i < ovs_cfg->n_manager_options; i++) {
362 struct ovsrec_manager *m = ovs_cfg->manager_options[i];
364 if (m->connection_mode && !strcmp(m->connection_mode, "out-of-band")) {
365 sset_find_and_delete(&targets, m->target);
367 sset_add(&targets, m->target);
371 /* Now extract the targets' IP addresses. */
372 if (!sset_is_empty(&targets)) {
375 managers = xmalloc(sset_count(&targets) * sizeof *managers);
376 SSET_FOR_EACH (target, &targets) {
377 struct sockaddr_in *sin = &managers[n_managers];
379 if (stream_parse_target_with_default_ports(target,
387 sset_destroy(&targets);
389 *managersp = managers;
390 *n_managersp = n_managers;
394 bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
396 unsigned long int *splinter_vlans;
397 struct sockaddr_in *managers;
398 struct bridge *br, *next;
399 int sflow_bridge_number;
402 COVERAGE_INC(bridge_reconfigure);
404 /* Create and destroy "struct bridge"s, "struct port"s, and "struct
405 * iface"s according to 'ovs_cfg', with only very minimal configuration
408 * This is mostly an update to bridge data structures. Very little is
409 * pushed down to ofproto or lower layers. */
410 add_del_bridges(ovs_cfg);
411 splinter_vlans = collect_splinter_vlans(ovs_cfg);
412 HMAP_FOR_EACH (br, node, &all_bridges) {
413 bridge_add_del_ports(br, splinter_vlans);
415 free(splinter_vlans);
417 /* Delete all datapaths and datapath ports that are no longer configured.
419 * The kernel will reject any attempt to add a given port to a datapath if
420 * that port already belongs to a different datapath, so we must do all
421 * port deletions before any port additions. A datapath always has a
422 * "local port" so we must delete not-configured datapaths too. */
423 bridge_del_ofprotos();
424 HMAP_FOR_EACH (br, node, &all_bridges) {
426 bridge_del_ofproto_ports(br);
430 /* Create datapaths and datapath ports that are missing.
432 * After this is done, we have our final set of bridges, ports, and
433 * interfaces. Every "struct bridge" has an ofproto, every "struct port"
434 * has at least one iface, every "struct iface" has a valid ofp_port and
436 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
437 if (!br->ofproto && !bridge_add_ofprotos(br)) {
441 HMAP_FOR_EACH (br, node, &all_bridges) {
442 bridge_refresh_ofp_port(br);
443 bridge_add_ofproto_ports(br);
446 /* Complete the configuration. */
447 sflow_bridge_number = 0;
448 collect_in_band_managers(ovs_cfg, &managers, &n_managers);
449 HMAP_FOR_EACH (br, node, &all_bridges) {
452 /* We need the datapath ID early to allow LACP ports to use it as the
453 * default system ID. */
454 bridge_configure_datapath_id(br);
456 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
459 port_configure(port);
461 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
462 iface_configure_cfm(iface);
463 iface_configure_qos(iface, port->cfg->qos);
464 iface_set_mac(iface);
467 bridge_configure_mirrors(br);
468 bridge_configure_flow_eviction_threshold(br);
469 bridge_configure_forward_bpdu(br);
470 bridge_configure_mac_idle_time(br);
471 bridge_configure_remotes(br, managers, n_managers);
472 bridge_configure_netflow(br);
473 bridge_configure_sflow(br, &sflow_bridge_number);
474 bridge_configure_stp(br);
478 /* ovs-vswitchd has completed initialization, so allow the process that
479 * forked us to exit successfully. */
480 daemonize_complete();
483 /* Iterate over all ofprotos and delete any of them that do not have a
484 * configured bridge or that are the wrong type. */
486 bridge_del_ofprotos(void)
494 ofproto_enumerate_types(&types);
495 SSET_FOR_EACH (type, &types) {
498 ofproto_enumerate_names(type, &names);
499 SSET_FOR_EACH (name, &names) {
500 struct bridge *br = bridge_lookup(name);
501 if (!br || strcmp(type, br->type)) {
502 ofproto_delete(name, type);
506 sset_destroy(&names);
507 sset_destroy(&types);
511 bridge_add_ofprotos(struct bridge *br)
513 int error = ofproto_create(br->name, br->type, &br->ofproto);
515 VLOG_ERR("failed to create bridge %s: %s", br->name, strerror(error));
522 port_configure(struct port *port)
524 const struct ovsrec_port *cfg = port->cfg;
525 struct bond_settings bond_settings;
526 struct lacp_settings lacp_settings;
527 struct ofproto_bundle_settings s;
530 if (cfg->vlan_mode && !strcmp(cfg->vlan_mode, "splinter")) {
531 configure_splinter_port(port);
540 s.slaves = xmalloc(list_size(&port->ifaces) * sizeof *s.slaves);
541 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
542 s.slaves[s.n_slaves++] = iface->ofp_port;
547 if (cfg->tag && *cfg->tag >= 0 && *cfg->tag <= 4095) {
551 /* Get VLAN trunks. */
554 s.trunks = vlan_bitmap_from_array(cfg->trunks, cfg->n_trunks);
558 if (cfg->vlan_mode) {
559 if (!strcmp(cfg->vlan_mode, "access")) {
560 s.vlan_mode = PORT_VLAN_ACCESS;
561 } else if (!strcmp(cfg->vlan_mode, "trunk")) {
562 s.vlan_mode = PORT_VLAN_TRUNK;
563 } else if (!strcmp(cfg->vlan_mode, "native-tagged")) {
564 s.vlan_mode = PORT_VLAN_NATIVE_TAGGED;
565 } else if (!strcmp(cfg->vlan_mode, "native-untagged")) {
566 s.vlan_mode = PORT_VLAN_NATIVE_UNTAGGED;
568 /* This "can't happen" because ovsdb-server should prevent it. */
569 VLOG_ERR("unknown VLAN mode %s", cfg->vlan_mode);
570 s.vlan_mode = PORT_VLAN_TRUNK;
574 s.vlan_mode = PORT_VLAN_ACCESS;
576 VLOG_ERR("port %s: ignoring trunks in favor of implicit vlan",
580 s.vlan_mode = PORT_VLAN_TRUNK;
583 s.use_priority_tags = !strcmp("true", get_port_other_config(
584 cfg, "priority-tags", ""));
586 /* Get LACP settings. */
587 s.lacp = port_configure_lacp(port, &lacp_settings);
591 s.lacp_slaves = xmalloc(s.n_slaves * sizeof *s.lacp_slaves);
592 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
593 iface_configure_lacp(iface, &s.lacp_slaves[i++]);
596 s.lacp_slaves = NULL;
599 /* Get bond settings. */
600 if (s.n_slaves > 1) {
601 s.bond = &bond_settings;
602 s.bond_stable_ids = xmalloc(s.n_slaves * sizeof *s.bond_stable_ids);
603 port_configure_bond(port, &bond_settings, s.bond_stable_ids);
606 s.bond_stable_ids = NULL;
608 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
609 netdev_set_miimon_interval(iface->netdev, 0);
614 ofproto_bundle_register(port->bridge->ofproto, port, &s);
620 free(s.bond_stable_ids);
623 /* Pick local port hardware address and datapath ID for 'br'. */
625 bridge_configure_datapath_id(struct bridge *br)
627 uint8_t ea[ETH_ADDR_LEN];
629 struct iface *local_iface;
630 struct iface *hw_addr_iface;
633 bridge_pick_local_hw_addr(br, ea, &hw_addr_iface);
634 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
636 int error = netdev_set_etheraddr(local_iface->netdev, ea);
638 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
639 VLOG_ERR_RL(&rl, "bridge %s: failed to set bridge "
640 "Ethernet address: %s",
641 br->name, strerror(error));
644 memcpy(br->ea, ea, ETH_ADDR_LEN);
646 dpid = bridge_pick_datapath_id(br, ea, hw_addr_iface);
647 ofproto_set_datapath_id(br->ofproto, dpid);
649 dpid_string = xasprintf("%016"PRIx64, dpid);
650 ovsrec_bridge_set_datapath_id(br->cfg, dpid_string);
654 /* Set NetFlow configuration on 'br'. */
656 bridge_configure_netflow(struct bridge *br)
658 struct ovsrec_netflow *cfg = br->cfg->netflow;
659 struct netflow_options opts;
662 ofproto_set_netflow(br->ofproto, NULL);
666 memset(&opts, 0, sizeof opts);
668 /* Get default NetFlow configuration from datapath.
669 * Apply overrides from 'cfg'. */
670 ofproto_get_netflow_ids(br->ofproto, &opts.engine_type, &opts.engine_id);
671 if (cfg->engine_type) {
672 opts.engine_type = *cfg->engine_type;
674 if (cfg->engine_id) {
675 opts.engine_id = *cfg->engine_id;
678 /* Configure active timeout interval. */
679 opts.active_timeout = cfg->active_timeout;
680 if (!opts.active_timeout) {
681 opts.active_timeout = -1;
682 } else if (opts.active_timeout < 0) {
683 VLOG_WARN("bridge %s: active timeout interval set to negative "
684 "value, using default instead (%d seconds)", br->name,
685 NF_ACTIVE_TIMEOUT_DEFAULT);
686 opts.active_timeout = -1;
689 /* Add engine ID to interface number to disambiguate bridgs? */
690 opts.add_id_to_iface = cfg->add_id_to_interface;
691 if (opts.add_id_to_iface) {
692 if (opts.engine_id > 0x7f) {
693 VLOG_WARN("bridge %s: NetFlow port mangling may conflict with "
694 "another vswitch, choose an engine id less than 128",
697 if (hmap_count(&br->ports) > 508) {
698 VLOG_WARN("bridge %s: NetFlow port mangling will conflict with "
699 "another port when more than 508 ports are used",
705 sset_init(&opts.collectors);
706 sset_add_array(&opts.collectors, cfg->targets, cfg->n_targets);
709 if (ofproto_set_netflow(br->ofproto, &opts)) {
710 VLOG_ERR("bridge %s: problem setting netflow collectors", br->name);
712 sset_destroy(&opts.collectors);
715 /* Set sFlow configuration on 'br'. */
717 bridge_configure_sflow(struct bridge *br, int *sflow_bridge_number)
719 const struct ovsrec_sflow *cfg = br->cfg->sflow;
720 struct ovsrec_controller **controllers;
721 struct ofproto_sflow_options oso;
722 size_t n_controllers;
726 ofproto_set_sflow(br->ofproto, NULL);
730 memset(&oso, 0, sizeof oso);
732 sset_init(&oso.targets);
733 sset_add_array(&oso.targets, cfg->targets, cfg->n_targets);
735 oso.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
737 oso.sampling_rate = *cfg->sampling;
740 oso.polling_interval = SFL_DEFAULT_POLLING_INTERVAL;
742 oso.polling_interval = *cfg->polling;
745 oso.header_len = SFL_DEFAULT_HEADER_SIZE;
747 oso.header_len = *cfg->header;
750 oso.sub_id = (*sflow_bridge_number)++;
751 oso.agent_device = cfg->agent;
753 oso.control_ip = NULL;
754 n_controllers = bridge_get_controllers(br, &controllers);
755 for (i = 0; i < n_controllers; i++) {
756 if (controllers[i]->local_ip) {
757 oso.control_ip = controllers[i]->local_ip;
761 ofproto_set_sflow(br->ofproto, &oso);
763 sset_destroy(&oso.targets);
767 port_configure_stp(const struct ofproto *ofproto, struct port *port,
768 struct ofproto_port_stp_settings *port_s,
769 int *port_num_counter, unsigned long *port_num_bitmap)
771 const char *config_str;
774 config_str = get_port_other_config(port->cfg, "stp-enable", NULL);
775 if (config_str && !strcmp(config_str, "false")) {
776 port_s->enable = false;
779 port_s->enable = true;
782 /* STP over bonds is not supported. */
783 if (!list_is_singleton(&port->ifaces)) {
784 VLOG_ERR("port %s: cannot enable STP on bonds, disabling",
786 port_s->enable = false;
790 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
792 /* Internal ports shouldn't participate in spanning tree, so
794 if (!strcmp(iface->type, "internal")) {
795 VLOG_DBG("port %s: disable STP on internal ports", port->name);
796 port_s->enable = false;
800 /* STP on mirror output ports is not supported. */
801 if (ofproto_is_mirror_output_bundle(ofproto, port)) {
802 VLOG_DBG("port %s: disable STP on mirror ports", port->name);
803 port_s->enable = false;
807 config_str = get_port_other_config(port->cfg, "stp-port-num", NULL);
809 unsigned long int port_num = strtoul(config_str, NULL, 0);
810 int port_idx = port_num - 1;
812 if (port_num < 1 || port_num > STP_MAX_PORTS) {
813 VLOG_ERR("port %s: invalid stp-port-num", port->name);
814 port_s->enable = false;
818 if (bitmap_is_set(port_num_bitmap, port_idx)) {
819 VLOG_ERR("port %s: duplicate stp-port-num %lu, disabling",
820 port->name, port_num);
821 port_s->enable = false;
824 bitmap_set1(port_num_bitmap, port_idx);
825 port_s->port_num = port_idx;
827 if (*port_num_counter > STP_MAX_PORTS) {
828 VLOG_ERR("port %s: too many STP ports, disabling", port->name);
829 port_s->enable = false;
833 port_s->port_num = (*port_num_counter)++;
836 config_str = get_port_other_config(port->cfg, "stp-path-cost", NULL);
838 port_s->path_cost = strtoul(config_str, NULL, 10);
842 if (netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL)) {
843 /* Couldn't get speed, so assume 100Mb/s. */
844 port_s->path_cost = 19;
848 mbps = netdev_features_to_bps(current) / 1000000;
849 port_s->path_cost = stp_convert_speed_to_cost(mbps);
853 config_str = get_port_other_config(port->cfg, "stp-port-priority", NULL);
855 port_s->priority = strtoul(config_str, NULL, 0);
857 port_s->priority = STP_DEFAULT_PORT_PRIORITY;
861 /* Set spanning tree configuration on 'br'. */
863 bridge_configure_stp(struct bridge *br)
865 if (!br->cfg->stp_enable) {
866 ofproto_set_stp(br->ofproto, NULL);
868 struct ofproto_stp_settings br_s;
869 const char *config_str;
871 int port_num_counter;
872 unsigned long *port_num_bitmap;
874 config_str = bridge_get_other_config(br->cfg, "stp-system-id");
876 uint8_t ea[ETH_ADDR_LEN];
878 if (eth_addr_from_string(config_str, ea)) {
879 br_s.system_id = eth_addr_to_uint64(ea);
881 br_s.system_id = eth_addr_to_uint64(br->ea);
882 VLOG_ERR("bridge %s: invalid stp-system-id, defaulting "
883 "to "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(br->ea));
886 br_s.system_id = eth_addr_to_uint64(br->ea);
889 config_str = bridge_get_other_config(br->cfg, "stp-priority");
891 br_s.priority = strtoul(config_str, NULL, 0);
893 br_s.priority = STP_DEFAULT_BRIDGE_PRIORITY;
896 config_str = bridge_get_other_config(br->cfg, "stp-hello-time");
898 br_s.hello_time = strtoul(config_str, NULL, 10) * 1000;
900 br_s.hello_time = STP_DEFAULT_HELLO_TIME;
903 config_str = bridge_get_other_config(br->cfg, "stp-max-age");
905 br_s.max_age = strtoul(config_str, NULL, 10) * 1000;
907 br_s.max_age = STP_DEFAULT_MAX_AGE;
910 config_str = bridge_get_other_config(br->cfg, "stp-forward-delay");
912 br_s.fwd_delay = strtoul(config_str, NULL, 10) * 1000;
914 br_s.fwd_delay = STP_DEFAULT_FWD_DELAY;
917 /* Configure STP on the bridge. */
918 if (ofproto_set_stp(br->ofproto, &br_s)) {
919 VLOG_ERR("bridge %s: could not enable STP", br->name);
923 /* Users must either set the port number with the "stp-port-num"
924 * configuration on all ports or none. If manual configuration
925 * is not done, then we allocate them sequentially. */
926 port_num_counter = 0;
927 port_num_bitmap = bitmap_allocate(STP_MAX_PORTS);
928 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
929 struct ofproto_port_stp_settings port_s;
932 port_configure_stp(br->ofproto, port, &port_s,
933 &port_num_counter, port_num_bitmap);
935 /* As bonds are not supported, just apply configuration to
937 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
938 if (ofproto_port_set_stp(br->ofproto, iface->ofp_port,
940 VLOG_ERR("port %s: could not enable STP", port->name);
946 if (bitmap_scan(port_num_bitmap, 0, STP_MAX_PORTS) != STP_MAX_PORTS
947 && port_num_counter) {
948 VLOG_ERR("bridge %s: must manually configure all STP port "
949 "IDs or none, disabling", br->name);
950 ofproto_set_stp(br->ofproto, NULL);
952 bitmap_free(port_num_bitmap);
957 bridge_has_bond_fake_iface(const struct bridge *br, const char *name)
959 const struct port *port = port_lookup(br, name);
960 return port && port_is_bond_fake_iface(port);
964 port_is_bond_fake_iface(const struct port *port)
966 return port->cfg->bond_fake_iface && !list_is_short(&port->ifaces);
970 add_del_bridges(const struct ovsrec_open_vswitch *cfg)
972 struct bridge *br, *next;
976 /* Collect new bridges' names and types. */
978 for (i = 0; i < cfg->n_bridges; i++) {
979 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
980 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
982 if (strchr(br_cfg->name, '/')) {
983 /* Prevent remote ovsdb-server users from accessing arbitrary
984 * directories, e.g. consider a bridge named "../../../etc/". */
985 VLOG_WARN_RL(&rl, "ignoring bridge with invalid name \"%s\"",
987 } else if (!shash_add_once(&new_br, br_cfg->name, br_cfg)) {
988 VLOG_WARN_RL(&rl, "bridge %s specified twice", br_cfg->name);
992 /* Get rid of deleted bridges or those whose types have changed.
993 * Update 'cfg' of bridges that still exist. */
994 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
995 br->cfg = shash_find_data(&new_br, br->name);
996 if (!br->cfg || strcmp(br->type, ofproto_normalize_type(
997 br->cfg->datapath_type))) {
1002 /* Add new bridges. */
1003 for (i = 0; i < cfg->n_bridges; i++) {
1004 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
1005 struct bridge *br = bridge_lookup(br_cfg->name);
1007 bridge_create(br_cfg);
1011 shash_destroy(&new_br);
1014 /* Delete each ofproto port on 'br' that doesn't have a corresponding "struct
1017 * The kernel will reject any attempt to add a given port to a datapath if that
1018 * port already belongs to a different datapath, so we must do all port
1019 * deletions before any port additions. */
1021 bridge_del_ofproto_ports(struct bridge *br)
1023 struct ofproto_port_dump dump;
1024 struct ofproto_port ofproto_port;
1026 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
1027 const char *name = ofproto_port.name;
1028 struct iface *iface;
1032 /* Ignore the local port. We can't change it anyhow. */
1033 if (!strcmp(name, br->name)) {
1037 /* Get the type that 'ofproto_port' should have (ordinarily the
1038 * type of its corresponding iface) or NULL if it should be
1040 iface = iface_lookup(br, name);
1041 type = (iface ? iface->type
1042 : bridge_has_bond_fake_iface(br, name) ? "internal"
1045 /* If it's the wrong type then delete the ofproto port. */
1047 && !strcmp(ofproto_port.type, type)
1048 && (!iface || !iface->netdev
1049 || !strcmp(netdev_get_type(iface->netdev), type))) {
1052 error = ofproto_port_del(br->ofproto, ofproto_port.ofp_port);
1054 VLOG_WARN("bridge %s: failed to remove %s interface (%s)",
1055 br->name, name, strerror(error));
1058 netdev_close(iface->netdev);
1059 iface->netdev = NULL;
1065 iface_set_ofp_port(struct iface *iface, int ofp_port)
1067 struct bridge *br = iface->port->bridge;
1069 assert(iface->ofp_port < 0 && ofp_port >= 0);
1070 iface->ofp_port = ofp_port;
1071 hmap_insert(&br->ifaces, &iface->ofp_port_node, hash_int(ofp_port, 0));
1072 iface_set_ofport(iface->cfg, ofp_port);
1076 bridge_refresh_ofp_port(struct bridge *br)
1078 struct ofproto_port_dump dump;
1079 struct ofproto_port ofproto_port;
1082 /* Clear all the "ofp_port"es. */
1083 hmap_clear(&br->ifaces);
1084 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1085 struct iface *iface;
1087 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1088 iface->ofp_port = -1;
1092 /* Obtain the correct "ofp_port"s from ofproto. */
1093 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
1094 struct iface *iface = iface_lookup(br, ofproto_port.name);
1096 if (iface->ofp_port >= 0) {
1097 VLOG_WARN("bridge %s: interface %s reported twice",
1098 br->name, ofproto_port.name);
1099 } else if (iface_from_ofp_port(br, ofproto_port.ofp_port)) {
1100 VLOG_WARN("bridge %s: interface %"PRIu16" reported twice",
1101 br->name, ofproto_port.ofp_port);
1103 iface_set_ofp_port(iface, ofproto_port.ofp_port);
1109 /* Add an ofproto port for any "struct iface" that doesn't have one.
1110 * Delete any "struct iface" for which this fails.
1111 * Delete any "struct port" that thereby ends up with no ifaces. */
1113 bridge_add_ofproto_ports(struct bridge *br)
1115 struct port *port, *next_port;
1117 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
1118 struct iface *iface, *next_iface;
1119 struct ofproto_port ofproto_port;
1121 LIST_FOR_EACH_SAFE (iface, next_iface, port_elem, &port->ifaces) {
1124 /* Open the netdev. */
1125 if (!iface->netdev) {
1126 error = netdev_open(iface->name, iface->type, &iface->netdev);
1128 VLOG_WARN("could not open network device %s (%s)",
1129 iface->name, strerror(error));
1133 && port->cfg->vlan_mode
1134 && !strcmp(port->cfg->vlan_mode, "splinter")) {
1135 netdev_turn_flags_on(iface->netdev, NETDEV_UP, true);
1141 /* Configure the netdev. */
1142 if (iface->netdev) {
1146 shash_from_ovs_idl_map(iface->cfg->key_options,
1147 iface->cfg->value_options,
1148 iface->cfg->n_options, &args);
1149 error = netdev_set_config(iface->netdev, &args);
1150 shash_destroy(&args);
1153 VLOG_WARN("could not configure network device %s (%s)",
1154 iface->name, strerror(error));
1155 netdev_close(iface->netdev);
1156 iface->netdev = NULL;
1160 /* Add the port, if necessary. */
1161 if (iface->netdev && iface->ofp_port < 0) {
1165 error = ofproto_port_add(br->ofproto, iface->netdev,
1168 iface_set_ofp_port(iface, ofp_port);
1170 netdev_close(iface->netdev);
1171 iface->netdev = NULL;
1175 /* Populate stats columns in new Interface rows. */
1176 if (iface->netdev && !iface->cfg->mtu) {
1177 iface_refresh_stats(iface);
1178 iface_refresh_status(iface);
1181 /* Delete the iface if we failed. */
1182 if (iface->netdev && iface->ofp_port >= 0) {
1183 VLOG_DBG("bridge %s: interface %s is on port %d",
1184 br->name, iface->name, iface->ofp_port);
1186 if (iface->netdev) {
1187 VLOG_ERR("bridge %s: missing %s interface, dropping",
1188 br->name, iface->name);
1190 /* We already reported a related error, don't bother
1191 * duplicating it. */
1193 iface_clear_db_record(iface->cfg);
1194 iface_destroy(iface);
1197 if (list_is_empty(&port->ifaces)) {
1198 VLOG_WARN("%s port has no interfaces, dropping", port->name);
1203 /* Add bond fake iface if necessary. */
1204 if (port_is_bond_fake_iface(port)) {
1205 if (ofproto_port_query_by_name(br->ofproto, port->name,
1207 struct netdev *netdev;
1210 error = netdev_open(port->name, "internal", &netdev);
1212 ofproto_port_add(br->ofproto, netdev, NULL);
1213 netdev_close(netdev);
1215 VLOG_WARN("could not open network device %s (%s)",
1216 port->name, strerror(error));
1219 /* Already exists, nothing to do. */
1220 ofproto_port_destroy(&ofproto_port);
1227 get_ovsrec_key_value(char **keys, char **values, size_t n, const char *key)
1231 for (i = 0; i < n; i++) {
1232 if (!strcmp(keys[i], key)) {
1240 bridge_get_other_config(const struct ovsrec_bridge *br_cfg, const char *key)
1242 return get_ovsrec_key_value(br_cfg->key_other_config,
1243 br_cfg->value_other_config,
1244 br_cfg->n_other_config, key);
1247 /* Set Flow eviction threshold */
1249 bridge_configure_flow_eviction_threshold(struct bridge *br)
1251 const char *threshold_str;
1254 threshold_str = bridge_get_other_config(br->cfg, "flow-eviction-threshold");
1255 if (threshold_str) {
1256 threshold = strtoul(threshold_str, NULL, 10);
1258 threshold = OFPROTO_FLOW_EVICTON_THRESHOLD_DEFAULT;
1260 ofproto_set_flow_eviction_threshold(br->ofproto, threshold);
1263 /* Set forward BPDU option. */
1265 bridge_configure_forward_bpdu(struct bridge *br)
1267 const char *forward_bpdu_str;
1268 bool forward_bpdu = false;
1270 forward_bpdu_str = bridge_get_other_config(br->cfg, "forward-bpdu");
1271 if (forward_bpdu_str && !strcmp(forward_bpdu_str, "true")) {
1272 forward_bpdu = true;
1274 ofproto_set_forward_bpdu(br->ofproto, forward_bpdu);
1277 /* Set MAC aging time for 'br'. */
1279 bridge_configure_mac_idle_time(struct bridge *br)
1281 const char *idle_time_str;
1284 idle_time_str = bridge_get_other_config(br->cfg, "mac-aging-time");
1285 idle_time = (idle_time_str && atoi(idle_time_str)
1286 ? atoi(idle_time_str)
1287 : MAC_ENTRY_DEFAULT_IDLE_TIME);
1288 ofproto_set_mac_idle_time(br->ofproto, idle_time);
1292 bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
1293 struct iface **hw_addr_iface)
1295 struct hmapx mirror_output_ports;
1298 bool found_addr = false;
1302 *hw_addr_iface = NULL;
1304 /* Did the user request a particular MAC? */
1305 hwaddr = bridge_get_other_config(br->cfg, "hwaddr");
1306 if (hwaddr && eth_addr_from_string(hwaddr, ea)) {
1307 if (eth_addr_is_multicast(ea)) {
1308 VLOG_ERR("bridge %s: cannot set MAC address to multicast "
1309 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1310 } else if (eth_addr_is_zero(ea)) {
1311 VLOG_ERR("bridge %s: cannot set MAC address to zero", br->name);
1317 /* Mirror output ports don't participate in picking the local hardware
1318 * address. ofproto can't help us find out whether a given port is a
1319 * mirror output because we haven't configured mirrors yet, so we need to
1320 * accumulate them ourselves. */
1321 hmapx_init(&mirror_output_ports);
1322 for (i = 0; i < br->cfg->n_mirrors; i++) {
1323 struct ovsrec_mirror *m = br->cfg->mirrors[i];
1324 if (m->output_port) {
1325 hmapx_add(&mirror_output_ports, m->output_port);
1329 /* Otherwise choose the minimum non-local MAC address among all of the
1331 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1332 uint8_t iface_ea[ETH_ADDR_LEN];
1333 struct iface *candidate;
1334 struct iface *iface;
1336 /* Mirror output ports don't participate. */
1337 if (hmapx_contains(&mirror_output_ports, port->cfg)) {
1341 /* Choose the MAC address to represent the port. */
1343 if (port->cfg->mac && eth_addr_from_string(port->cfg->mac, iface_ea)) {
1344 /* Find the interface with this Ethernet address (if any) so that
1345 * we can provide the correct devname to the caller. */
1346 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1347 uint8_t candidate_ea[ETH_ADDR_LEN];
1348 if (!netdev_get_etheraddr(candidate->netdev, candidate_ea)
1349 && eth_addr_equals(iface_ea, candidate_ea)) {
1354 /* Choose the interface whose MAC address will represent the port.
1355 * The Linux kernel bonding code always chooses the MAC address of
1356 * the first slave added to a bond, and the Fedora networking
1357 * scripts always add slaves to a bond in alphabetical order, so
1358 * for compatibility we choose the interface with the name that is
1359 * first in alphabetical order. */
1360 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1361 if (!iface || strcmp(candidate->name, iface->name) < 0) {
1366 /* The local port doesn't count (since we're trying to choose its
1367 * MAC address anyway). */
1368 if (iface->ofp_port == OFPP_LOCAL) {
1373 error = netdev_get_etheraddr(iface->netdev, iface_ea);
1379 /* Compare against our current choice. */
1380 if (!eth_addr_is_multicast(iface_ea) &&
1381 !eth_addr_is_local(iface_ea) &&
1382 !eth_addr_is_reserved(iface_ea) &&
1383 !eth_addr_is_zero(iface_ea) &&
1384 (!found_addr || eth_addr_compare_3way(iface_ea, ea) < 0))
1386 memcpy(ea, iface_ea, ETH_ADDR_LEN);
1387 *hw_addr_iface = iface;
1392 VLOG_DBG("bridge %s: using bridge Ethernet address "ETH_ADDR_FMT,
1393 br->name, ETH_ADDR_ARGS(ea));
1395 memcpy(ea, br->default_ea, ETH_ADDR_LEN);
1396 *hw_addr_iface = NULL;
1397 VLOG_WARN("bridge %s: using default bridge Ethernet "
1398 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1401 hmapx_destroy(&mirror_output_ports);
1404 /* Choose and returns the datapath ID for bridge 'br' given that the bridge
1405 * Ethernet address is 'bridge_ea'. If 'bridge_ea' is the Ethernet address of
1406 * an interface on 'br', then that interface must be passed in as
1407 * 'hw_addr_iface'; if 'bridge_ea' was derived some other way, then
1408 * 'hw_addr_iface' must be passed in as a null pointer. */
1410 bridge_pick_datapath_id(struct bridge *br,
1411 const uint8_t bridge_ea[ETH_ADDR_LEN],
1412 struct iface *hw_addr_iface)
1415 * The procedure for choosing a bridge MAC address will, in the most
1416 * ordinary case, also choose a unique MAC that we can use as a datapath
1417 * ID. In some special cases, though, multiple bridges will end up with
1418 * the same MAC address. This is OK for the bridges, but it will confuse
1419 * the OpenFlow controller, because each datapath needs a unique datapath
1422 * Datapath IDs must be unique. It is also very desirable that they be
1423 * stable from one run to the next, so that policy set on a datapath
1426 const char *datapath_id;
1429 datapath_id = bridge_get_other_config(br->cfg, "datapath-id");
1430 if (datapath_id && dpid_from_string(datapath_id, &dpid)) {
1434 if (!hw_addr_iface) {
1436 * A purely internal bridge, that is, one that has no non-virtual
1437 * network devices on it at all, is difficult because it has no
1438 * natural unique identifier at all.
1440 * When the host is a XenServer, we handle this case by hashing the
1441 * host's UUID with the name of the bridge. Names of bridges are
1442 * persistent across XenServer reboots, although they can be reused if
1443 * an internal network is destroyed and then a new one is later
1444 * created, so this is fairly effective.
1446 * When the host is not a XenServer, we punt by using a random MAC
1447 * address on each run.
1449 const char *host_uuid = xenserver_get_host_uuid();
1451 char *combined = xasprintf("%s,%s", host_uuid, br->name);
1452 dpid = dpid_from_hash(combined, strlen(combined));
1458 return eth_addr_to_uint64(bridge_ea);
1462 dpid_from_hash(const void *data, size_t n)
1464 uint8_t hash[SHA1_DIGEST_SIZE];
1466 BUILD_ASSERT_DECL(sizeof hash >= ETH_ADDR_LEN);
1467 sha1_bytes(data, n, hash);
1468 eth_addr_mark_random(hash);
1469 return eth_addr_to_uint64(hash);
1473 iface_refresh_status(struct iface *iface)
1477 enum netdev_flags flags;
1484 if (iface_is_synthetic(iface)) {
1490 if (!netdev_get_status(iface->netdev, &sh)) {
1492 char **keys, **values;
1494 shash_to_ovs_idl_map(&sh, &keys, &values, &n);
1495 ovsrec_interface_set_status(iface->cfg, keys, values, n);
1500 ovsrec_interface_set_status(iface->cfg, NULL, NULL, 0);
1503 shash_destroy_free_data(&sh);
1505 error = netdev_get_flags(iface->netdev, &flags);
1507 ovsrec_interface_set_admin_state(iface->cfg, flags & NETDEV_UP ? "up" : "down");
1510 ovsrec_interface_set_admin_state(iface->cfg, NULL);
1513 error = netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
1515 ovsrec_interface_set_duplex(iface->cfg,
1516 netdev_features_is_full_duplex(current)
1518 /* warning: uint64_t -> int64_t conversion */
1519 bps = netdev_features_to_bps(current);
1520 ovsrec_interface_set_link_speed(iface->cfg, &bps, 1);
1523 ovsrec_interface_set_duplex(iface->cfg, NULL);
1524 ovsrec_interface_set_link_speed(iface->cfg, NULL, 0);
1527 error = netdev_get_mtu(iface->netdev, &mtu);
1530 ovsrec_interface_set_mtu(iface->cfg, &mtu_64, 1);
1533 ovsrec_interface_set_mtu(iface->cfg, NULL, 0);
1537 /* Writes 'iface''s CFM statistics to the database. */
1539 iface_refresh_cfm_stats(struct iface *iface)
1541 const struct ovsrec_interface *cfg = iface->cfg;
1543 const uint64_t *rmps;
1546 if (iface_is_synthetic(iface)) {
1550 fault = ofproto_port_get_cfm_fault(iface->port->bridge->ofproto,
1553 bool fault_bool = fault;
1554 ovsrec_interface_set_cfm_fault(cfg, &fault_bool, 1);
1556 ovsrec_interface_set_cfm_fault(cfg, NULL, 0);
1559 error = ofproto_port_get_cfm_remote_mpids(iface->port->bridge->ofproto,
1560 iface->ofp_port, &rmps, &n_rmps);
1562 ovsrec_interface_set_cfm_remote_mpids(cfg, (const int64_t *)rmps,
1565 ovsrec_interface_set_cfm_remote_mpids(cfg, NULL, 0);
1570 iface_refresh_stats(struct iface *iface)
1572 #define IFACE_STATS \
1573 IFACE_STAT(rx_packets, "rx_packets") \
1574 IFACE_STAT(tx_packets, "tx_packets") \
1575 IFACE_STAT(rx_bytes, "rx_bytes") \
1576 IFACE_STAT(tx_bytes, "tx_bytes") \
1577 IFACE_STAT(rx_dropped, "rx_dropped") \
1578 IFACE_STAT(tx_dropped, "tx_dropped") \
1579 IFACE_STAT(rx_errors, "rx_errors") \
1580 IFACE_STAT(tx_errors, "tx_errors") \
1581 IFACE_STAT(rx_frame_errors, "rx_frame_err") \
1582 IFACE_STAT(rx_over_errors, "rx_over_err") \
1583 IFACE_STAT(rx_crc_errors, "rx_crc_err") \
1584 IFACE_STAT(collisions, "collisions")
1586 #define IFACE_STAT(MEMBER, NAME) NAME,
1587 static char *keys[] = { IFACE_STATS };
1589 int64_t values[ARRAY_SIZE(keys)];
1592 struct netdev_stats stats;
1594 if (iface_is_synthetic(iface)) {
1598 /* Intentionally ignore return value, since errors will set 'stats' to
1599 * all-1s, and we will deal with that correctly below. */
1600 netdev_get_stats(iface->netdev, &stats);
1602 /* Copy statistics into values[] array. */
1604 #define IFACE_STAT(MEMBER, NAME) values[i++] = stats.MEMBER;
1607 assert(i == ARRAY_SIZE(keys));
1609 ovsrec_interface_set_statistics(iface->cfg, keys, values, ARRAY_SIZE(keys));
1614 br_refresh_stp_status(struct bridge *br)
1616 struct ofproto *ofproto = br->ofproto;
1617 struct ofproto_stp_status status;
1618 char *keys[3], *values[3];
1621 if (ofproto_get_stp_status(ofproto, &status)) {
1625 if (!status.enabled) {
1626 ovsrec_bridge_set_status(br->cfg, NULL, NULL, 0);
1630 keys[0] = "stp_bridge_id",
1631 values[0] = xasprintf(STP_ID_FMT, STP_ID_ARGS(status.bridge_id));
1632 keys[1] = "stp_designated_root",
1633 values[1] = xasprintf(STP_ID_FMT, STP_ID_ARGS(status.designated_root));
1634 keys[2] = "stp_root_path_cost",
1635 values[2] = xasprintf("%d", status.root_path_cost);
1637 ovsrec_bridge_set_status(br->cfg, keys, values, ARRAY_SIZE(values));
1639 for (i = 0; i < ARRAY_SIZE(values); i++) {
1645 port_refresh_stp_status(struct port *port)
1647 struct ofproto *ofproto = port->bridge->ofproto;
1648 struct iface *iface;
1649 struct ofproto_port_stp_status status;
1651 char *str_values[4];
1652 int64_t int_values[3];
1655 if (port_is_synthetic(port)) {
1659 /* STP doesn't currently support bonds. */
1660 if (!list_is_singleton(&port->ifaces)) {
1661 ovsrec_port_set_status(port->cfg, NULL, NULL, 0);
1665 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
1667 if (ofproto_port_get_stp_status(ofproto, iface->ofp_port, &status)) {
1671 if (!status.enabled) {
1672 ovsrec_port_set_status(port->cfg, NULL, NULL, 0);
1673 ovsrec_port_set_statistics(port->cfg, NULL, NULL, 0);
1677 /* Set Status column. */
1678 keys[0] = "stp_port_id";
1679 str_values[0] = xasprintf(STP_PORT_ID_FMT, status.port_id);
1680 keys[1] = "stp_state";
1681 str_values[1] = xstrdup(stp_state_name(status.state));
1682 keys[2] = "stp_sec_in_state";
1683 str_values[2] = xasprintf("%u", status.sec_in_state);
1684 keys[3] = "stp_role";
1685 str_values[3] = xstrdup(stp_role_name(status.role));
1687 ovsrec_port_set_status(port->cfg, keys, str_values,
1688 ARRAY_SIZE(str_values));
1690 for (i = 0; i < ARRAY_SIZE(str_values); i++) {
1691 free(str_values[i]);
1694 /* Set Statistics column. */
1695 keys[0] = "stp_tx_count";
1696 int_values[0] = status.tx_count;
1697 keys[1] = "stp_rx_count";
1698 int_values[1] = status.rx_count;
1699 keys[2] = "stp_error_count";
1700 int_values[2] = status.error_count;
1702 ovsrec_port_set_statistics(port->cfg, keys, int_values,
1703 ARRAY_SIZE(int_values));
1707 enable_system_stats(const struct ovsrec_open_vswitch *cfg)
1711 /* Use other-config:enable-system-stats by preference. */
1712 enable = get_ovsrec_key_value(cfg->key_other_config,
1713 cfg->value_other_config,
1714 cfg->n_other_config,
1715 "enable-statistics");
1717 return !strcmp(enable, "true");
1720 /* Disable by default. */
1725 refresh_system_stats(const struct ovsrec_open_vswitch *cfg)
1727 struct ovsdb_datum datum;
1731 if (enable_system_stats(cfg)) {
1732 get_system_stats(&stats);
1735 ovsdb_datum_from_shash(&datum, &stats);
1736 ovsdb_idl_txn_write(&cfg->header_, &ovsrec_open_vswitch_col_statistics,
1740 static inline const char *
1741 nx_role_to_str(enum nx_role role)
1746 case NX_ROLE_MASTER:
1751 return "*** INVALID ROLE ***";
1756 refresh_controller_status(void)
1760 const struct ovsrec_controller *cfg;
1764 /* Accumulate status for controllers on all bridges. */
1765 HMAP_FOR_EACH (br, node, &all_bridges) {
1766 ofproto_get_ofproto_controller_info(br->ofproto, &info);
1769 /* Update each controller in the database with current status. */
1770 OVSREC_CONTROLLER_FOR_EACH(cfg, idl) {
1771 struct ofproto_controller_info *cinfo =
1772 shash_find_data(&info, cfg->target);
1775 ovsrec_controller_set_is_connected(cfg, cinfo->is_connected);
1776 ovsrec_controller_set_role(cfg, nx_role_to_str(cinfo->role));
1777 ovsrec_controller_set_status(cfg, (char **) cinfo->pairs.keys,
1778 (char **) cinfo->pairs.values,
1781 ovsrec_controller_set_is_connected(cfg, false);
1782 ovsrec_controller_set_role(cfg, NULL);
1783 ovsrec_controller_set_status(cfg, NULL, NULL, 0);
1787 ofproto_free_ofproto_controller_info(&info);
1791 refresh_cfm_stats(void)
1793 static struct ovsdb_idl_txn *txn = NULL;
1798 txn = ovsdb_idl_txn_create(idl);
1800 HMAP_FOR_EACH (br, node, &all_bridges) {
1801 struct iface *iface;
1803 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
1804 iface_refresh_cfm_stats(iface);
1809 if (ovsdb_idl_txn_commit(txn) != TXN_INCOMPLETE) {
1810 ovsdb_idl_txn_destroy(txn);
1815 /* Performs periodic activity required by bridges that needs to be done with
1816 * the least possible latency.
1818 * It makes sense to call this function a couple of times per poll loop, to
1819 * provide a significant performance boost on some benchmarks with ofprotos
1820 * that use the ofproto-dpif implementation. */
1822 bridge_run_fast(void)
1826 HMAP_FOR_EACH (br, node, &all_bridges) {
1827 ofproto_run_fast(br->ofproto);
1834 const struct ovsrec_open_vswitch *cfg;
1836 bool vlan_splinters_changed;
1837 bool database_changed;
1840 /* (Re)configure if necessary. */
1841 database_changed = ovsdb_idl_run(idl);
1842 if (ovsdb_idl_is_lock_contended(idl)) {
1843 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
1844 struct bridge *br, *next_br;
1846 VLOG_ERR_RL(&rl, "another ovs-vswitchd process is running, "
1847 "disabling this process until it goes away");
1849 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
1853 } else if (!ovsdb_idl_has_lock(idl)) {
1856 cfg = ovsrec_open_vswitch_first(idl);
1858 /* Let each bridge do the work that it needs to do. */
1859 HMAP_FOR_EACH (br, node, &all_bridges) {
1860 ofproto_run(br->ofproto);
1863 /* Re-configure SSL. We do this on every trip through the main loop,
1864 * instead of just when the database changes, because the contents of the
1865 * key and certificate files can change without the database changing.
1867 * We do this before bridge_reconfigure() because that function might
1868 * initiate SSL connections and thus requires SSL to be configured. */
1869 if (cfg && cfg->ssl) {
1870 const struct ovsrec_ssl *ssl = cfg->ssl;
1872 stream_ssl_set_key_and_cert(ssl->private_key, ssl->certificate);
1873 stream_ssl_set_ca_cert_file(ssl->ca_cert, ssl->bootstrap_ca_cert);
1876 /* If VLAN splinters are in use, then we need to reconfigure if VLAN usage
1878 vlan_splinters_changed = false;
1879 if (vlan_splinters_enabled_anywhere) {
1880 HMAP_FOR_EACH (br, node, &all_bridges) {
1881 if (ofproto_has_vlan_usage_changed(br->ofproto)) {
1882 vlan_splinters_changed = true;
1888 if (database_changed || vlan_splinters_changed) {
1890 struct ovsdb_idl_txn *txn = ovsdb_idl_txn_create(idl);
1892 bridge_reconfigure(cfg);
1894 ovsrec_open_vswitch_set_cur_cfg(cfg, cfg->next_cfg);
1895 ovsdb_idl_txn_commit(txn);
1896 ovsdb_idl_txn_destroy(txn); /* XXX */
1898 /* We still need to reconfigure to avoid dangling pointers to
1899 * now-destroyed ovsrec structures inside bridge data. */
1900 static const struct ovsrec_open_vswitch null_cfg;
1902 bridge_reconfigure(&null_cfg);
1906 /* Refresh system and interface stats if necessary. */
1907 if (time_msec() >= stats_timer) {
1909 struct ovsdb_idl_txn *txn;
1911 txn = ovsdb_idl_txn_create(idl);
1912 HMAP_FOR_EACH (br, node, &all_bridges) {
1916 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1917 struct iface *iface;
1919 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1920 iface_refresh_stats(iface);
1921 iface_refresh_status(iface);
1925 HMAP_FOR_EACH (m, hmap_node, &br->mirrors) {
1926 mirror_refresh_stats(m);
1930 refresh_system_stats(cfg);
1931 refresh_controller_status();
1932 ovsdb_idl_txn_commit(txn);
1933 ovsdb_idl_txn_destroy(txn); /* XXX */
1936 stats_timer = time_msec() + STATS_INTERVAL;
1939 if (time_msec() >= db_limiter) {
1940 struct ovsdb_idl_txn *txn;
1942 txn = ovsdb_idl_txn_create(idl);
1943 HMAP_FOR_EACH (br, node, &all_bridges) {
1944 struct iface *iface;
1947 br_refresh_stp_status(br);
1949 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1950 port_refresh_stp_status(port);
1953 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
1954 const char *link_state;
1955 int64_t link_resets;
1958 if (iface_is_synthetic(iface)) {
1962 current = ofproto_port_is_lacp_current(br->ofproto,
1966 ovsrec_interface_set_lacp_current(iface->cfg, &bl, 1);
1968 ovsrec_interface_set_lacp_current(iface->cfg, NULL, 0);
1971 link_state = netdev_get_carrier(iface->netdev) ? "up" : "down";
1972 ovsrec_interface_set_link_state(iface->cfg, link_state);
1974 link_resets = netdev_get_carrier_resets(iface->netdev);
1975 ovsrec_interface_set_link_resets(iface->cfg, &link_resets, 1);
1979 if (ovsdb_idl_txn_commit(txn) != TXN_UNCHANGED) {
1980 db_limiter = time_msec() + DB_LIMIT_INTERVAL;
1982 ovsdb_idl_txn_destroy(txn);
1985 refresh_cfm_stats();
1991 ovsdb_idl_wait(idl);
1992 if (!hmap_is_empty(&all_bridges)) {
1995 HMAP_FOR_EACH (br, node, &all_bridges) {
1996 ofproto_wait(br->ofproto);
1998 poll_timer_wait_until(stats_timer);
2000 if (db_limiter > time_msec()) {
2001 poll_timer_wait_until(db_limiter);
2006 /* QoS unixctl user interface functions. */
2008 struct qos_unixctl_show_cbdata {
2010 struct iface *iface;
2014 qos_unixctl_show_cb(unsigned int queue_id,
2015 const struct shash *details,
2018 struct qos_unixctl_show_cbdata *data = aux;
2019 struct ds *ds = data->ds;
2020 struct iface *iface = data->iface;
2021 struct netdev_queue_stats stats;
2022 struct shash_node *node;
2025 ds_put_cstr(ds, "\n");
2027 ds_put_format(ds, "Queue %u:\n", queue_id);
2029 ds_put_cstr(ds, "Default:\n");
2032 SHASH_FOR_EACH (node, details) {
2033 ds_put_format(ds, "\t%s: %s\n", node->name, (char *)node->data);
2036 error = netdev_get_queue_stats(iface->netdev, queue_id, &stats);
2038 if (stats.tx_packets != UINT64_MAX) {
2039 ds_put_format(ds, "\ttx_packets: %"PRIu64"\n", stats.tx_packets);
2042 if (stats.tx_bytes != UINT64_MAX) {
2043 ds_put_format(ds, "\ttx_bytes: %"PRIu64"\n", stats.tx_bytes);
2046 if (stats.tx_errors != UINT64_MAX) {
2047 ds_put_format(ds, "\ttx_errors: %"PRIu64"\n", stats.tx_errors);
2050 ds_put_format(ds, "\tFailed to get statistics for queue %u: %s",
2051 queue_id, strerror(error));
2056 qos_unixctl_show(struct unixctl_conn *conn, int argc OVS_UNUSED,
2057 const char *argv[], void *aux OVS_UNUSED)
2059 struct ds ds = DS_EMPTY_INITIALIZER;
2060 struct shash sh = SHASH_INITIALIZER(&sh);
2061 struct iface *iface;
2063 struct shash_node *node;
2064 struct qos_unixctl_show_cbdata data;
2067 iface = iface_find(argv[1]);
2069 unixctl_command_reply(conn, 501, "no such interface");
2073 netdev_get_qos(iface->netdev, &type, &sh);
2075 if (*type != '\0') {
2076 ds_put_format(&ds, "QoS: %s %s\n", iface->name, type);
2078 SHASH_FOR_EACH (node, &sh) {
2079 ds_put_format(&ds, "%s: %s\n", node->name, (char *)node->data);
2084 error = netdev_dump_queues(iface->netdev, qos_unixctl_show_cb, &data);
2087 ds_put_format(&ds, "failed to dump queues: %s", strerror(error));
2089 unixctl_command_reply(conn, 200, ds_cstr(&ds));
2091 ds_put_format(&ds, "QoS not configured on %s\n", iface->name);
2092 unixctl_command_reply(conn, 501, ds_cstr(&ds));
2095 shash_destroy_free_data(&sh);
2099 /* Bridge reconfiguration functions. */
2101 bridge_create(const struct ovsrec_bridge *br_cfg)
2105 assert(!bridge_lookup(br_cfg->name));
2106 br = xzalloc(sizeof *br);
2108 br->name = xstrdup(br_cfg->name);
2109 br->type = xstrdup(ofproto_normalize_type(br_cfg->datapath_type));
2112 /* Derive the default Ethernet address from the bridge's UUID. This should
2113 * be unique and it will be stable between ovs-vswitchd runs. */
2114 memcpy(br->default_ea, &br_cfg->header_.uuid, ETH_ADDR_LEN);
2115 eth_addr_mark_random(br->default_ea);
2117 hmap_init(&br->ports);
2118 hmap_init(&br->ifaces);
2119 hmap_init(&br->iface_by_name);
2120 hmap_init(&br->mirrors);
2122 hmap_insert(&all_bridges, &br->node, hash_string(br->name, 0));
2126 bridge_destroy(struct bridge *br)
2129 struct mirror *mirror, *next_mirror;
2130 struct port *port, *next_port;
2132 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
2135 HMAP_FOR_EACH_SAFE (mirror, next_mirror, hmap_node, &br->mirrors) {
2136 mirror_destroy(mirror);
2138 hmap_remove(&all_bridges, &br->node);
2139 ofproto_destroy(br->ofproto);
2140 hmap_destroy(&br->ifaces);
2141 hmap_destroy(&br->ports);
2142 hmap_destroy(&br->iface_by_name);
2143 hmap_destroy(&br->mirrors);
2150 static struct bridge *
2151 bridge_lookup(const char *name)
2155 HMAP_FOR_EACH_WITH_HASH (br, node, hash_string(name, 0), &all_bridges) {
2156 if (!strcmp(br->name, name)) {
2163 /* Handle requests for a listing of all flows known by the OpenFlow
2164 * stack, including those normally hidden. */
2166 bridge_unixctl_dump_flows(struct unixctl_conn *conn, int argc OVS_UNUSED,
2167 const char *argv[], void *aux OVS_UNUSED)
2172 br = bridge_lookup(argv[1]);
2174 unixctl_command_reply(conn, 501, "Unknown bridge");
2179 ofproto_get_all_flows(br->ofproto, &results);
2181 unixctl_command_reply(conn, 200, ds_cstr(&results));
2182 ds_destroy(&results);
2185 /* "bridge/reconnect [BRIDGE]": makes BRIDGE drop all of its controller
2186 * connections and reconnect. If BRIDGE is not specified, then all bridges
2187 * drop their controller connections and reconnect. */
2189 bridge_unixctl_reconnect(struct unixctl_conn *conn, int argc,
2190 const char *argv[], void *aux OVS_UNUSED)
2194 br = bridge_lookup(argv[1]);
2196 unixctl_command_reply(conn, 501, "Unknown bridge");
2199 ofproto_reconnect_controllers(br->ofproto);
2201 HMAP_FOR_EACH (br, node, &all_bridges) {
2202 ofproto_reconnect_controllers(br->ofproto);
2205 unixctl_command_reply(conn, 200, NULL);
2209 bridge_get_controllers(const struct bridge *br,
2210 struct ovsrec_controller ***controllersp)
2212 struct ovsrec_controller **controllers;
2213 size_t n_controllers;
2215 controllers = br->cfg->controller;
2216 n_controllers = br->cfg->n_controller;
2218 if (n_controllers == 1 && !strcmp(controllers[0]->target, "none")) {
2224 *controllersp = controllers;
2226 return n_controllers;
2229 /* Adds and deletes "struct port"s and "struct iface"s under 'br' to match
2230 * those configured in 'br->cfg'. */
2232 bridge_add_del_ports(struct bridge *br,
2233 const unsigned long int *splinter_vlans)
2235 struct port *port, *next;
2236 struct shash_node *node;
2237 struct shash new_ports;
2240 /* Collect new ports. */
2241 shash_init(&new_ports);
2242 for (i = 0; i < br->cfg->n_ports; i++) {
2243 const char *name = br->cfg->ports[i]->name;
2244 if (!shash_add_once(&new_ports, name, br->cfg->ports[i])) {
2245 VLOG_WARN("bridge %s: %s specified twice as bridge port",
2249 if (bridge_get_controllers(br, NULL)
2250 && !shash_find(&new_ports, br->name)) {
2251 VLOG_WARN("bridge %s: no port named %s, synthesizing one",
2252 br->name, br->name);
2254 br->synth_local_port.interfaces = &br->synth_local_ifacep;
2255 br->synth_local_port.n_interfaces = 1;
2256 br->synth_local_port.name = br->name;
2258 br->synth_local_iface.name = br->name;
2259 br->synth_local_iface.type = "internal";
2261 br->synth_local_ifacep = &br->synth_local_iface;
2263 shash_add(&new_ports, br->name, &br->synth_local_port);
2266 if (splinter_vlans) {
2267 add_vlan_splinter_ports(br, splinter_vlans, &new_ports);
2270 /* Get rid of deleted ports.
2271 * Get rid of deleted interfaces on ports that still exist. */
2272 HMAP_FOR_EACH_SAFE (port, next, hmap_node, &br->ports) {
2273 port->cfg = shash_find_data(&new_ports, port->name);
2277 port_del_ifaces(port);
2281 /* Create new ports.
2282 * Add new interfaces to existing ports. */
2283 SHASH_FOR_EACH (node, &new_ports) {
2284 struct port *port = port_lookup(br, node->name);
2286 struct ovsrec_port *cfg = node->data;
2287 port = port_create(br, cfg);
2289 port_add_ifaces(port);
2290 if (list_is_empty(&port->ifaces)) {
2291 VLOG_WARN("bridge %s: port %s has no interfaces, dropping",
2292 br->name, port->name);
2296 shash_destroy(&new_ports);
2299 /* Initializes 'oc' appropriately as a management service controller for
2302 * The caller must free oc->target when it is no longer needed. */
2304 bridge_ofproto_controller_for_mgmt(const struct bridge *br,
2305 struct ofproto_controller *oc)
2307 oc->target = xasprintf("punix:%s/%s.mgmt", ovs_rundir(), br->name);
2308 oc->max_backoff = 0;
2309 oc->probe_interval = 60;
2310 oc->band = OFPROTO_OUT_OF_BAND;
2312 oc->burst_limit = 0;
2315 /* Converts ovsrec_controller 'c' into an ofproto_controller in 'oc'. */
2317 bridge_ofproto_controller_from_ovsrec(const struct ovsrec_controller *c,
2318 struct ofproto_controller *oc)
2320 oc->target = c->target;
2321 oc->max_backoff = c->max_backoff ? *c->max_backoff / 1000 : 8;
2322 oc->probe_interval = c->inactivity_probe ? *c->inactivity_probe / 1000 : 5;
2323 oc->band = (!c->connection_mode || !strcmp(c->connection_mode, "in-band")
2324 ? OFPROTO_IN_BAND : OFPROTO_OUT_OF_BAND);
2325 oc->rate_limit = c->controller_rate_limit ? *c->controller_rate_limit : 0;
2326 oc->burst_limit = (c->controller_burst_limit
2327 ? *c->controller_burst_limit : 0);
2330 /* Configures the IP stack for 'br''s local interface properly according to the
2331 * configuration in 'c'. */
2333 bridge_configure_local_iface_netdev(struct bridge *br,
2334 struct ovsrec_controller *c)
2336 struct netdev *netdev;
2337 struct in_addr mask, gateway;
2339 struct iface *local_iface;
2342 /* If there's no local interface or no IP address, give up. */
2343 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
2344 if (!local_iface || !c->local_ip || !inet_aton(c->local_ip, &ip)) {
2348 /* Bring up the local interface. */
2349 netdev = local_iface->netdev;
2350 netdev_turn_flags_on(netdev, NETDEV_UP, true);
2352 /* Configure the IP address and netmask. */
2353 if (!c->local_netmask
2354 || !inet_aton(c->local_netmask, &mask)
2356 mask.s_addr = guess_netmask(ip.s_addr);
2358 if (!netdev_set_in4(netdev, ip, mask)) {
2359 VLOG_INFO("bridge %s: configured IP address "IP_FMT", netmask "IP_FMT,
2360 br->name, IP_ARGS(&ip.s_addr), IP_ARGS(&mask.s_addr));
2363 /* Configure the default gateway. */
2364 if (c->local_gateway
2365 && inet_aton(c->local_gateway, &gateway)
2366 && gateway.s_addr) {
2367 if (!netdev_add_router(netdev, gateway)) {
2368 VLOG_INFO("bridge %s: configured gateway "IP_FMT,
2369 br->name, IP_ARGS(&gateway.s_addr));
2374 /* Returns true if 'a' and 'b' are the same except that any number of slashes
2375 * in either string are treated as equal to any number of slashes in the other,
2376 * e.g. "x///y" is equal to "x/y". */
2378 equal_pathnames(const char *a, const char *b)
2382 a += strspn(a, "/");
2383 b += strspn(b, "/");
2384 } else if (*a == '\0') {
2395 bridge_configure_remotes(struct bridge *br,
2396 const struct sockaddr_in *managers, size_t n_managers)
2398 const char *disable_ib_str, *queue_id_str;
2399 bool disable_in_band = false;
2402 struct ovsrec_controller **controllers;
2403 size_t n_controllers;
2405 enum ofproto_fail_mode fail_mode;
2407 struct ofproto_controller *ocs;
2411 /* Check if we should disable in-band control on this bridge. */
2412 disable_ib_str = bridge_get_other_config(br->cfg, "disable-in-band");
2413 if (disable_ib_str && !strcmp(disable_ib_str, "true")) {
2414 disable_in_band = true;
2417 /* Set OpenFlow queue ID for in-band control. */
2418 queue_id_str = bridge_get_other_config(br->cfg, "in-band-queue");
2419 queue_id = queue_id_str ? strtol(queue_id_str, NULL, 10) : -1;
2420 ofproto_set_in_band_queue(br->ofproto, queue_id);
2422 if (disable_in_band) {
2423 ofproto_set_extra_in_band_remotes(br->ofproto, NULL, 0);
2425 ofproto_set_extra_in_band_remotes(br->ofproto, managers, n_managers);
2428 n_controllers = bridge_get_controllers(br, &controllers);
2430 ocs = xmalloc((n_controllers + 1) * sizeof *ocs);
2433 bridge_ofproto_controller_for_mgmt(br, &ocs[n_ocs++]);
2434 for (i = 0; i < n_controllers; i++) {
2435 struct ovsrec_controller *c = controllers[i];
2437 if (!strncmp(c->target, "punix:", 6)
2438 || !strncmp(c->target, "unix:", 5)) {
2439 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2442 whitelist = xasprintf("unix:%s/%s.controller",
2443 ovs_rundir(), br->name);
2444 if (!equal_pathnames(c->target, whitelist)) {
2445 /* Prevent remote ovsdb-server users from accessing arbitrary
2446 * Unix domain sockets and overwriting arbitrary local
2448 VLOG_ERR_RL(&rl, "bridge %s: Not adding Unix domain socket "
2449 "controller \"%s\" due to possibility for remote "
2450 "exploit. Instead, specify whitelisted \"%s\" or "
2451 "connect to \"unix:%s/%s.mgmt\" (which is always "
2452 "available without special configuration).",
2453 br->name, c->target, whitelist,
2454 ovs_rundir(), br->name);
2462 bridge_configure_local_iface_netdev(br, c);
2463 bridge_ofproto_controller_from_ovsrec(c, &ocs[n_ocs]);
2464 if (disable_in_band) {
2465 ocs[n_ocs].band = OFPROTO_OUT_OF_BAND;
2470 ofproto_set_controllers(br->ofproto, ocs, n_ocs);
2471 free(ocs[0].target); /* From bridge_ofproto_controller_for_mgmt(). */
2474 /* Set the fail-mode. */
2475 fail_mode = !br->cfg->fail_mode
2476 || !strcmp(br->cfg->fail_mode, "standalone")
2477 ? OFPROTO_FAIL_STANDALONE
2478 : OFPROTO_FAIL_SECURE;
2479 ofproto_set_fail_mode(br->ofproto, fail_mode);
2481 /* Configure OpenFlow controller connection snooping. */
2482 if (!ofproto_has_snoops(br->ofproto)) {
2486 sset_add_and_free(&snoops, xasprintf("punix:%s/%s.snoop",
2487 ovs_rundir(), br->name));
2488 ofproto_set_snoops(br->ofproto, &snoops);
2489 sset_destroy(&snoops);
2493 /* Port functions. */
2495 static struct port *
2496 port_create(struct bridge *br, const struct ovsrec_port *cfg)
2500 port = xzalloc(sizeof *port);
2502 port->name = xstrdup(cfg->name);
2504 list_init(&port->ifaces);
2506 hmap_insert(&br->ports, &port->hmap_node, hash_string(port->name, 0));
2508 VLOG_INFO("created port %s on bridge %s", port->name, br->name);
2514 get_port_other_config(const struct ovsrec_port *port, const char *key,
2515 const char *default_value)
2519 value = get_ovsrec_key_value(port->key_other_config,
2520 port->value_other_config,
2521 port->n_other_config, key);
2522 return value ? value : default_value;
2526 get_interface_other_config(const struct ovsrec_interface *iface,
2527 const char *key, const char *default_value)
2531 value = get_ovsrec_key_value(iface->key_other_config,
2532 iface->value_other_config,
2533 iface->n_other_config, key);
2534 return value ? value : default_value;
2537 /* Deletes interfaces from 'port' that are no longer configured for it. */
2539 port_del_ifaces(struct port *port)
2541 struct iface *iface, *next;
2542 struct sset new_ifaces;
2545 /* Collect list of new interfaces. */
2546 sset_init(&new_ifaces);
2547 for (i = 0; i < port->cfg->n_interfaces; i++) {
2548 const char *name = port->cfg->interfaces[i]->name;
2549 const char *type = port->cfg->interfaces[i]->name;
2550 if (strcmp(type, "null")) {
2551 sset_add(&new_ifaces, name);
2555 /* Get rid of deleted interfaces. */
2556 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2557 if (!sset_contains(&new_ifaces, iface->name)) {
2558 iface_destroy(iface);
2562 sset_destroy(&new_ifaces);
2565 /* Adds new interfaces to 'port' and updates 'type' and 'cfg' members of
2568 port_add_ifaces(struct port *port)
2570 struct shash new_ifaces;
2571 struct shash_node *node;
2574 /* Collect new ifaces. */
2575 shash_init(&new_ifaces);
2576 for (i = 0; i < port->cfg->n_interfaces; i++) {
2577 const struct ovsrec_interface *cfg = port->cfg->interfaces[i];
2578 if (strcmp(cfg->type, "null")
2579 && !shash_add_once(&new_ifaces, cfg->name, cfg)) {
2580 VLOG_WARN("port %s: %s specified twice as port interface",
2581 port->name, cfg->name);
2582 iface_clear_db_record(cfg);
2586 /* Create new interfaces.
2587 * Update interface types and 'cfg' members. */
2588 SHASH_FOR_EACH (node, &new_ifaces) {
2589 const struct ovsrec_interface *cfg = node->data;
2590 const char *iface_name = node->name;
2591 struct iface *iface;
2593 iface = iface_lookup(port->bridge, iface_name);
2595 iface = iface_create(port, cfg);
2600 /* Determine interface type. The local port always has type
2601 * "internal". Other ports take their type from the database and
2602 * default to "system" if none is specified. */
2603 iface->type = (!strcmp(iface_name, port->bridge->name) ? "internal"
2604 : cfg->type[0] ? cfg->type
2607 shash_destroy(&new_ifaces);
2611 port_destroy(struct port *port)
2614 struct bridge *br = port->bridge;
2615 struct iface *iface, *next;
2618 ofproto_bundle_unregister(br->ofproto, port);
2621 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2622 iface_destroy(iface);
2625 hmap_remove(&br->ports, &port->hmap_node);
2627 VLOG_INFO("destroyed port %s on bridge %s", port->name, br->name);
2634 static struct port *
2635 port_lookup(const struct bridge *br, const char *name)
2639 HMAP_FOR_EACH_WITH_HASH (port, hmap_node, hash_string(name, 0),
2641 if (!strcmp(port->name, name)) {
2649 enable_lacp(struct port *port, bool *activep)
2651 if (!port->cfg->lacp) {
2652 /* XXX when LACP implementation has been sufficiently tested, enable by
2653 * default and make active on bonded ports. */
2655 } else if (!strcmp(port->cfg->lacp, "off")) {
2657 } else if (!strcmp(port->cfg->lacp, "active")) {
2660 } else if (!strcmp(port->cfg->lacp, "passive")) {
2664 VLOG_WARN("port %s: unknown LACP mode %s",
2665 port->name, port->cfg->lacp);
2670 static struct lacp_settings *
2671 port_configure_lacp(struct port *port, struct lacp_settings *s)
2673 const char *lacp_time, *system_id;
2674 long long int custom_time;
2677 if (!enable_lacp(port, &s->active)) {
2681 s->name = port->name;
2683 system_id = get_port_other_config(port->cfg, "lacp-system-id", NULL);
2685 || sscanf(system_id, ETH_ADDR_SCAN_FMT,
2686 ETH_ADDR_SCAN_ARGS(s->id)) != ETH_ADDR_SCAN_COUNT) {
2687 memcpy(s->id, port->bridge->ea, ETH_ADDR_LEN);
2690 if (eth_addr_is_zero(s->id)) {
2691 VLOG_WARN("port %s: Invalid zero LACP system ID.", port->name);
2695 /* Prefer bondable links if unspecified. */
2696 priority = atoi(get_port_other_config(port->cfg, "lacp-system-priority",
2698 s->priority = (priority > 0 && priority <= UINT16_MAX
2700 : UINT16_MAX - !list_is_short(&port->ifaces));
2702 s->heartbeat = !strcmp(get_port_other_config(port->cfg,
2706 lacp_time = get_port_other_config(port->cfg, "lacp-time", "slow");
2707 custom_time = atoi(lacp_time);
2708 if (!strcmp(lacp_time, "fast")) {
2709 s->lacp_time = LACP_TIME_FAST;
2710 } else if (!strcmp(lacp_time, "slow")) {
2711 s->lacp_time = LACP_TIME_SLOW;
2712 } else if (custom_time > 0) {
2713 s->lacp_time = LACP_TIME_CUSTOM;
2714 s->custom_time = custom_time;
2716 s->lacp_time = LACP_TIME_SLOW;
2723 iface_configure_lacp(struct iface *iface, struct lacp_slave_settings *s)
2725 int priority, portid, key;
2727 portid = atoi(get_interface_other_config(iface->cfg, "lacp-port-id", "0"));
2728 priority = atoi(get_interface_other_config(iface->cfg,
2729 "lacp-port-priority", "0"));
2730 key = atoi(get_interface_other_config(iface->cfg, "lacp-aggregation-key",
2733 if (portid <= 0 || portid > UINT16_MAX) {
2734 portid = iface->ofp_port;
2737 if (priority <= 0 || priority > UINT16_MAX) {
2738 priority = UINT16_MAX;
2741 if (key < 0 || key > UINT16_MAX) {
2745 s->name = iface->name;
2747 s->priority = priority;
2752 port_configure_bond(struct port *port, struct bond_settings *s,
2753 uint32_t *bond_stable_ids)
2755 const char *detect_s;
2756 struct iface *iface;
2757 int miimon_interval;
2760 s->name = port->name;
2761 s->balance = BM_SLB;
2762 if (port->cfg->bond_mode) {
2763 if (!bond_mode_from_string(&s->balance, port->cfg->bond_mode)) {
2764 VLOG_WARN("port %s: unknown bond_mode %s, defaulting to %s",
2765 port->name, port->cfg->bond_mode,
2766 bond_mode_to_string(s->balance));
2769 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
2771 /* XXX: Post version 1.4.*, change the default bond_mode to
2772 * active-backup. Until then, warn that the change is imminent. */
2773 VLOG_WARN_RL(&rl, "port %s: Using the default bond_mode %s. Note that"
2774 " in future versions, the default bond_mode is expected"
2775 " to change to active-backup", port->name,
2776 bond_mode_to_string(s->balance));
2778 if (s->balance == BM_SLB && port->bridge->cfg->n_flood_vlans) {
2779 VLOG_WARN("port %s: SLB bonds are incompatible with flood_vlans, "
2780 "please use another bond type or disable flood_vlans",
2784 miimon_interval = atoi(get_port_other_config(port->cfg,
2785 "bond-miimon-interval", "0"));
2786 if (miimon_interval <= 0) {
2787 miimon_interval = 200;
2790 detect_s = get_port_other_config(port->cfg, "bond-detect-mode", "carrier");
2791 if (!strcmp(detect_s, "carrier")) {
2792 miimon_interval = 0;
2793 } else if (strcmp(detect_s, "miimon")) {
2794 VLOG_WARN("port %s: unsupported bond-detect-mode %s, "
2795 "defaulting to carrier", port->name, detect_s);
2796 miimon_interval = 0;
2799 s->up_delay = MAX(0, port->cfg->bond_updelay);
2800 s->down_delay = MAX(0, port->cfg->bond_downdelay);
2801 s->basis = atoi(get_port_other_config(port->cfg, "bond-hash-basis", "0"));
2802 s->rebalance_interval = atoi(
2803 get_port_other_config(port->cfg, "bond-rebalance-interval", "10000"));
2804 if (s->rebalance_interval < 1000) {
2805 s->rebalance_interval = 1000;
2808 s->fake_iface = port->cfg->bond_fake_iface;
2811 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
2812 long long stable_id;
2814 stable_id = atoll(get_interface_other_config(iface->cfg,
2815 "bond-stable-id", "0"));
2816 if (stable_id <= 0 || stable_id >= UINT32_MAX) {
2817 stable_id = iface->ofp_port;
2819 bond_stable_ids[i++] = stable_id;
2821 netdev_set_miimon_interval(iface->netdev, miimon_interval);
2825 /* Returns true if 'port' is synthetic, that is, if we constructed it locally
2826 * instead of obtaining it from the database. */
2828 port_is_synthetic(const struct port *port)
2830 return ovsdb_idl_row_is_synthetic(&port->cfg->header_);
2833 /* Interface functions. */
2835 static struct iface *
2836 iface_create(struct port *port, const struct ovsrec_interface *if_cfg)
2838 struct bridge *br = port->bridge;
2839 struct iface *iface;
2840 char *name = if_cfg->name;
2842 iface = xzalloc(sizeof *iface);
2844 iface->name = xstrdup(name);
2845 iface->ofp_port = -1;
2846 iface->tag = tag_create_random();
2847 iface->netdev = NULL;
2848 iface->cfg = if_cfg;
2850 hmap_insert(&br->iface_by_name, &iface->name_node, hash_string(name, 0));
2852 list_push_back(&port->ifaces, &iface->port_elem);
2854 VLOG_DBG("attached network device %s to port %s", iface->name, port->name);
2860 iface_destroy(struct iface *iface)
2863 struct port *port = iface->port;
2864 struct bridge *br = port->bridge;
2866 if (br->ofproto && iface->ofp_port >= 0) {
2867 ofproto_port_unregister(br->ofproto, iface->ofp_port);
2870 if (iface->ofp_port >= 0) {
2871 hmap_remove(&br->ifaces, &iface->ofp_port_node);
2874 list_remove(&iface->port_elem);
2875 hmap_remove(&br->iface_by_name, &iface->name_node);
2877 netdev_close(iface->netdev);
2884 static struct iface *
2885 iface_lookup(const struct bridge *br, const char *name)
2887 struct iface *iface;
2889 HMAP_FOR_EACH_WITH_HASH (iface, name_node, hash_string(name, 0),
2890 &br->iface_by_name) {
2891 if (!strcmp(iface->name, name)) {
2899 static struct iface *
2900 iface_find(const char *name)
2902 const struct bridge *br;
2904 HMAP_FOR_EACH (br, node, &all_bridges) {
2905 struct iface *iface = iface_lookup(br, name);
2914 static struct iface *
2915 iface_from_ofp_port(const struct bridge *br, uint16_t ofp_port)
2917 struct iface *iface;
2919 HMAP_FOR_EACH_IN_BUCKET (iface, ofp_port_node,
2920 hash_int(ofp_port, 0), &br->ifaces) {
2921 if (iface->ofp_port == ofp_port) {
2928 /* Set Ethernet address of 'iface', if one is specified in the configuration
2931 iface_set_mac(struct iface *iface)
2933 uint8_t ea[ETH_ADDR_LEN];
2935 if (!strcmp(iface->type, "internal")
2936 && iface->cfg->mac && eth_addr_from_string(iface->cfg->mac, ea)) {
2937 if (iface->ofp_port == OFPP_LOCAL) {
2938 VLOG_ERR("interface %s: ignoring mac in Interface record "
2939 "(use Bridge record to set local port's mac)",
2941 } else if (eth_addr_is_multicast(ea)) {
2942 VLOG_ERR("interface %s: cannot set MAC to multicast address",
2945 int error = netdev_set_etheraddr(iface->netdev, ea);
2947 VLOG_ERR("interface %s: setting MAC failed (%s)",
2948 iface->name, strerror(error));
2954 /* Sets the ofport column of 'if_cfg' to 'ofport'. */
2956 iface_set_ofport(const struct ovsrec_interface *if_cfg, int64_t ofport)
2958 if (if_cfg && !ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
2959 ovsrec_interface_set_ofport(if_cfg, &ofport, 1);
2963 /* Clears all of the fields in 'if_cfg' that indicate interface status, and
2964 * sets the "ofport" field to -1.
2966 * This is appropriate when 'if_cfg''s interface cannot be created or is
2967 * otherwise invalid. */
2969 iface_clear_db_record(const struct ovsrec_interface *if_cfg)
2971 if (!ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
2972 iface_set_ofport(if_cfg, -1);
2973 ovsrec_interface_set_status(if_cfg, NULL, NULL, 0);
2974 ovsrec_interface_set_admin_state(if_cfg, NULL);
2975 ovsrec_interface_set_duplex(if_cfg, NULL);
2976 ovsrec_interface_set_link_speed(if_cfg, NULL, 0);
2977 ovsrec_interface_set_link_state(if_cfg, NULL);
2978 ovsrec_interface_set_mtu(if_cfg, NULL, 0);
2979 ovsrec_interface_set_cfm_fault(if_cfg, NULL, 0);
2980 ovsrec_interface_set_cfm_remote_mpids(if_cfg, NULL, 0);
2981 ovsrec_interface_set_lacp_current(if_cfg, NULL, 0);
2982 ovsrec_interface_set_statistics(if_cfg, NULL, NULL, 0);
2986 /* Adds the 'n' key-value pairs in 'keys' in 'values' to 'shash'.
2988 * The value strings in '*shash' are taken directly from values[], not copied,
2989 * so the caller should not modify or free them. */
2991 shash_from_ovs_idl_map(char **keys, char **values, size_t n,
2992 struct shash *shash)
2997 for (i = 0; i < n; i++) {
2998 shash_add(shash, keys[i], values[i]);
3002 /* Creates 'keys' and 'values' arrays from 'shash'.
3004 * Sets 'keys' and 'values' to heap allocated arrays representing the key-value
3005 * pairs in 'shash'. The caller takes ownership of 'keys' and 'values'. They
3006 * are populated with with strings taken directly from 'shash' and thus have
3007 * the same ownership of the key-value pairs in shash.
3010 shash_to_ovs_idl_map(struct shash *shash,
3011 char ***keys, char ***values, size_t *n)
3015 struct shash_node *sn;
3017 count = shash_count(shash);
3019 k = xmalloc(count * sizeof *k);
3020 v = xmalloc(count * sizeof *v);
3023 SHASH_FOR_EACH(sn, shash) {
3034 struct iface_delete_queues_cbdata {
3035 struct netdev *netdev;
3036 const struct ovsdb_datum *queues;
3040 queue_ids_include(const struct ovsdb_datum *queues, int64_t target)
3042 union ovsdb_atom atom;
3044 atom.integer = target;
3045 return ovsdb_datum_find_key(queues, &atom, OVSDB_TYPE_INTEGER) != UINT_MAX;
3049 iface_delete_queues(unsigned int queue_id,
3050 const struct shash *details OVS_UNUSED, void *cbdata_)
3052 struct iface_delete_queues_cbdata *cbdata = cbdata_;
3054 if (!queue_ids_include(cbdata->queues, queue_id)) {
3055 netdev_delete_queue(cbdata->netdev, queue_id);
3060 iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos)
3062 struct ofpbuf queues_buf;
3064 ofpbuf_init(&queues_buf, 0);
3066 if (!qos || qos->type[0] == '\0' || qos->n_queues < 1) {
3067 netdev_set_qos(iface->netdev, NULL, NULL);
3069 struct iface_delete_queues_cbdata cbdata;
3070 struct shash details;
3074 /* Configure top-level Qos for 'iface'. */
3075 shash_from_ovs_idl_map(qos->key_other_config, qos->value_other_config,
3076 qos->n_other_config, &details);
3077 netdev_set_qos(iface->netdev, qos->type, &details);
3078 shash_destroy(&details);
3080 /* Deconfigure queues that were deleted. */
3081 cbdata.netdev = iface->netdev;
3082 cbdata.queues = ovsrec_qos_get_queues(qos, OVSDB_TYPE_INTEGER,
3084 netdev_dump_queues(iface->netdev, iface_delete_queues, &cbdata);
3086 /* Configure queues for 'iface'. */
3088 for (i = 0; i < qos->n_queues; i++) {
3089 const struct ovsrec_queue *queue = qos->value_queues[i];
3090 unsigned int queue_id = qos->key_queues[i];
3092 if (queue_id == 0) {
3096 if (queue->n_dscp == 1) {
3097 struct ofproto_port_queue *port_queue;
3099 port_queue = ofpbuf_put_uninit(&queues_buf,
3100 sizeof *port_queue);
3101 port_queue->queue = queue_id;
3102 port_queue->dscp = queue->dscp[0];
3105 shash_from_ovs_idl_map(queue->key_other_config,
3106 queue->value_other_config,
3107 queue->n_other_config, &details);
3108 netdev_set_queue(iface->netdev, queue_id, &details);
3109 shash_destroy(&details);
3112 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
3113 VLOG_WARN_RL(&rl, "interface %s: QoS configured without a default "
3114 "queue (queue 0). Using default configuration.",
3117 shash_init(&details);
3118 netdev_set_queue(iface->netdev, 0, &details);
3119 shash_destroy(&details);
3123 if (iface->ofp_port >= 0) {
3124 const struct ofproto_port_queue *port_queues = queues_buf.data;
3125 size_t n_queues = queues_buf.size / sizeof *port_queues;
3127 ofproto_port_set_queues(iface->port->bridge->ofproto, iface->ofp_port,
3128 port_queues, n_queues);
3131 netdev_set_policing(iface->netdev,
3132 iface->cfg->ingress_policing_rate,
3133 iface->cfg->ingress_policing_burst);
3135 ofpbuf_uninit(&queues_buf);
3139 iface_configure_cfm(struct iface *iface)
3141 const struct ovsrec_interface *cfg = iface->cfg;
3142 const char *extended_str, *opstate_str;
3143 struct cfm_settings s;
3145 if (!cfg->n_cfm_mpid) {
3146 ofproto_port_clear_cfm(iface->port->bridge->ofproto, iface->ofp_port);
3150 s.mpid = *cfg->cfm_mpid;
3151 s.interval = atoi(get_interface_other_config(iface->cfg, "cfm_interval",
3153 s.ccm_vlan = atoi(get_interface_other_config(iface->cfg, "cfm_ccm_vlan",
3155 if (s.interval <= 0) {
3159 extended_str = get_interface_other_config(iface->cfg, "cfm_extended",
3161 s.extended = !strcasecmp("true", extended_str);
3163 opstate_str = get_interface_other_config(iface->cfg, "cfm_opstate", "up");
3164 s.opup = !strcasecmp("up", opstate_str);
3166 ofproto_port_set_cfm(iface->port->bridge->ofproto, iface->ofp_port, &s);
3169 /* Returns true if 'iface' is synthetic, that is, if we constructed it locally
3170 * instead of obtaining it from the database. */
3172 iface_is_synthetic(const struct iface *iface)
3174 return ovsdb_idl_row_is_synthetic(&iface->cfg->header_);
3177 /* Port mirroring. */
3179 static struct mirror *
3180 mirror_find_by_uuid(struct bridge *br, const struct uuid *uuid)
3184 HMAP_FOR_EACH_IN_BUCKET (m, hmap_node, uuid_hash(uuid), &br->mirrors) {
3185 if (uuid_equals(uuid, &m->uuid)) {
3193 bridge_configure_mirrors(struct bridge *br)
3195 const struct ovsdb_datum *mc;
3196 unsigned long *flood_vlans;
3197 struct mirror *m, *next;
3200 /* Get rid of deleted mirrors. */
3201 mc = ovsrec_bridge_get_mirrors(br->cfg, OVSDB_TYPE_UUID);
3202 HMAP_FOR_EACH_SAFE (m, next, hmap_node, &br->mirrors) {
3203 union ovsdb_atom atom;
3205 atom.uuid = m->uuid;
3206 if (ovsdb_datum_find_key(mc, &atom, OVSDB_TYPE_UUID) == UINT_MAX) {
3211 /* Add new mirrors and reconfigure existing ones. */
3212 for (i = 0; i < br->cfg->n_mirrors; i++) {
3213 const struct ovsrec_mirror *cfg = br->cfg->mirrors[i];
3214 struct mirror *m = mirror_find_by_uuid(br, &cfg->header_.uuid);
3216 m = mirror_create(br, cfg);
3219 if (!mirror_configure(m)) {
3224 /* Update flooded vlans (for RSPAN). */
3225 flood_vlans = vlan_bitmap_from_array(br->cfg->flood_vlans,
3226 br->cfg->n_flood_vlans);
3227 ofproto_set_flood_vlans(br->ofproto, flood_vlans);
3228 bitmap_free(flood_vlans);
3231 static struct mirror *
3232 mirror_create(struct bridge *br, const struct ovsrec_mirror *cfg)
3236 m = xzalloc(sizeof *m);
3237 m->uuid = cfg->header_.uuid;
3238 hmap_insert(&br->mirrors, &m->hmap_node, uuid_hash(&m->uuid));
3240 m->name = xstrdup(cfg->name);
3246 mirror_destroy(struct mirror *m)
3249 struct bridge *br = m->bridge;
3252 ofproto_mirror_unregister(br->ofproto, m);
3255 hmap_remove(&br->mirrors, &m->hmap_node);
3262 mirror_collect_ports(struct mirror *m,
3263 struct ovsrec_port **in_ports, int n_in_ports,
3264 void ***out_portsp, size_t *n_out_portsp)
3266 void **out_ports = xmalloc(n_in_ports * sizeof *out_ports);
3267 size_t n_out_ports = 0;
3270 for (i = 0; i < n_in_ports; i++) {
3271 const char *name = in_ports[i]->name;
3272 struct port *port = port_lookup(m->bridge, name);
3274 out_ports[n_out_ports++] = port;
3276 VLOG_WARN("bridge %s: mirror %s cannot match on nonexistent "
3277 "port %s", m->bridge->name, m->name, name);
3280 *out_portsp = out_ports;
3281 *n_out_portsp = n_out_ports;
3285 mirror_configure(struct mirror *m)
3287 const struct ovsrec_mirror *cfg = m->cfg;
3288 struct ofproto_mirror_settings s;
3291 if (strcmp(cfg->name, m->name)) {
3293 m->name = xstrdup(cfg->name);
3297 /* Get output port or VLAN. */
3298 if (cfg->output_port) {
3299 s.out_bundle = port_lookup(m->bridge, cfg->output_port->name);
3300 if (!s.out_bundle) {
3301 VLOG_ERR("bridge %s: mirror %s outputs to port not on bridge",
3302 m->bridge->name, m->name);
3305 s.out_vlan = UINT16_MAX;
3307 if (cfg->output_vlan) {
3308 VLOG_ERR("bridge %s: mirror %s specifies both output port and "
3309 "output vlan; ignoring output vlan",
3310 m->bridge->name, m->name);
3312 } else if (cfg->output_vlan) {
3313 /* The database should prevent invalid VLAN values. */
3314 s.out_bundle = NULL;
3315 s.out_vlan = *cfg->output_vlan;
3317 VLOG_ERR("bridge %s: mirror %s does not specify output; ignoring",
3318 m->bridge->name, m->name);
3322 /* Get port selection. */
3323 if (cfg->select_all) {
3324 size_t n_ports = hmap_count(&m->bridge->ports);
3325 void **ports = xmalloc(n_ports * sizeof *ports);
3330 HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) {
3340 /* Get ports, dropping ports that don't exist.
3341 * The IDL ensures that there are no duplicates. */
3342 mirror_collect_ports(m, cfg->select_src_port, cfg->n_select_src_port,
3343 &s.srcs, &s.n_srcs);
3344 mirror_collect_ports(m, cfg->select_dst_port, cfg->n_select_dst_port,
3345 &s.dsts, &s.n_dsts);
3348 /* Get VLAN selection. */
3349 s.src_vlans = vlan_bitmap_from_array(cfg->select_vlan, cfg->n_select_vlan);
3352 ofproto_mirror_register(m->bridge->ofproto, m, &s);
3355 if (s.srcs != s.dsts) {
3364 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
3366 * This is deprecated. It is only for compatibility with broken device drivers
3367 * in old versions of Linux that do not properly support VLANs when VLAN
3368 * devices are not used. When broken device drivers are no longer in
3369 * widespread use, we will delete these interfaces. */
3371 static void **blocks;
3372 static size_t n_blocks, allocated_blocks;
3374 /* Adds 'block' to a list of blocks that have to be freed with free() when the
3375 * VLAN splinters are reconfigured. */
3377 register_block(void *block)
3379 if (n_blocks >= allocated_blocks) {
3380 blocks = x2nrealloc(blocks, &allocated_blocks, sizeof *blocks);
3382 blocks[n_blocks++] = block;
3385 /* Frees all of the blocks registered with register_block(). */
3387 free_registered_blocks(void)
3391 for (i = 0; i < n_blocks; i++) {
3397 /* Returns true if VLAN splinters are enabled on 'iface_cfg', false
3400 vlan_splinters_is_enabled(const struct ovsrec_interface *iface_cfg)
3404 value = get_interface_other_config(iface_cfg, "enable-vlan-splinters", "");
3405 return !strcmp(value, "true");
3408 /* Figures out the set of VLANs that are in use for the purpose of VLAN
3411 * If VLAN splinters are enabled on at least one interface and any VLANs are in
3412 * use, returns a 4096-bit bitmap with a 1-bit for each in-use VLAN (bits 0 and
3413 * 4095 will not be set). The caller is responsible for freeing the bitmap,
3416 * If VLANs splinters are not enabled on any interface or if no VLANs are in
3417 * use, returns NULL.
3419 * Updates 'vlan_splinters_enabled_anywhere'. */
3420 static unsigned long int *
3421 collect_splinter_vlans(const struct ovsrec_open_vswitch *ovs_cfg)
3423 unsigned long int *splinter_vlans;
3424 struct sset splinter_ifaces;
3425 const char *real_dev_name;
3426 struct shash *real_devs;
3427 struct shash_node *node;
3431 /* Free space allocated for synthesized ports and interfaces, since we're
3432 * in the process of reconstructing all of them. */
3433 free_registered_blocks();
3435 splinter_vlans = bitmap_allocate(4096);
3436 sset_init(&splinter_ifaces);
3437 vlan_splinters_enabled_anywhere = false;
3438 for (i = 0; i < ovs_cfg->n_bridges; i++) {
3439 struct ovsrec_bridge *br_cfg = ovs_cfg->bridges[i];
3442 for (j = 0; j < br_cfg->n_ports; j++) {
3443 struct ovsrec_port *port_cfg = br_cfg->ports[j];
3446 for (k = 0; k < port_cfg->n_interfaces; k++) {
3447 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[k];
3449 if (vlan_splinters_is_enabled(iface_cfg)) {
3450 vlan_splinters_enabled_anywhere = true;
3451 sset_add(&splinter_ifaces, iface_cfg->name);
3452 vlan_bitmap_from_array__(port_cfg->trunks,
3458 if (port_cfg->tag && *port_cfg->tag > 0 && *port_cfg->tag < 4095) {
3459 bitmap_set1(splinter_vlans, *port_cfg->tag);
3464 if (!vlan_splinters_enabled_anywhere) {
3465 free(splinter_vlans);
3466 sset_destroy(&splinter_ifaces);
3470 HMAP_FOR_EACH (br, node, &all_bridges) {
3472 ofproto_get_vlan_usage(br->ofproto, splinter_vlans);
3476 /* Don't allow VLANs 0 or 4095 to be splintered. VLAN 0 should appear on
3477 * the real device. VLAN 4095 is reserved and Linux doesn't allow a VLAN
3478 * device to be created for it. */
3479 bitmap_set0(splinter_vlans, 0);
3480 bitmap_set0(splinter_vlans, 4095);
3482 /* Delete all VLAN devices that we don't need. */
3484 real_devs = vlandev_get_real_devs();
3485 SHASH_FOR_EACH (node, real_devs) {
3486 const struct vlan_real_dev *real_dev = node->data;
3487 const struct vlan_dev *vlan_dev;
3488 bool real_dev_has_splinters;
3490 real_dev_has_splinters = sset_contains(&splinter_ifaces,
3492 HMAP_FOR_EACH (vlan_dev, hmap_node, &real_dev->vlan_devs) {
3493 if (!real_dev_has_splinters
3494 || !bitmap_is_set(splinter_vlans, vlan_dev->vid)) {
3495 struct netdev *netdev;
3497 if (!netdev_open(vlan_dev->name, "system", &netdev)) {
3498 if (!netdev_get_in4(netdev, NULL, NULL) ||
3499 !netdev_get_in6(netdev, NULL)) {
3500 vlandev_del(vlan_dev->name);
3502 /* It has an IP address configured, so we don't own
3503 * it. Don't delete it. */
3505 netdev_close(netdev);
3512 /* Add all VLAN devices that we need. */
3513 SSET_FOR_EACH (real_dev_name, &splinter_ifaces) {
3516 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
3517 if (!vlandev_get_name(real_dev_name, vid)) {
3518 vlandev_add(real_dev_name, vid);
3525 sset_destroy(&splinter_ifaces);
3527 if (bitmap_scan(splinter_vlans, 0, 4096) >= 4096) {
3528 free(splinter_vlans);
3531 return splinter_vlans;
3534 /* Pushes the configure of VLAN splinter port 'port' (e.g. eth0.9) down to
3537 configure_splinter_port(struct port *port)
3539 struct ofproto *ofproto = port->bridge->ofproto;
3540 uint16_t realdev_ofp_port;
3541 const char *realdev_name;
3542 struct iface *vlandev, *realdev;
3544 ofproto_bundle_unregister(port->bridge->ofproto, port);
3546 vlandev = CONTAINER_OF(list_front(&port->ifaces), struct iface,
3549 realdev_name = get_port_other_config(port->cfg, "realdev", NULL);
3550 realdev = iface_lookup(port->bridge, realdev_name);
3551 realdev_ofp_port = realdev ? realdev->ofp_port : 0;
3553 ofproto_port_set_realdev(ofproto, vlandev->ofp_port, realdev_ofp_port,
3557 static struct ovsrec_port *
3558 synthesize_splinter_port(const char *real_dev_name,
3559 const char *vlan_dev_name, int vid)
3561 struct ovsrec_interface *iface;
3562 struct ovsrec_port *port;
3564 iface = xzalloc(sizeof *iface);
3565 iface->name = xstrdup(vlan_dev_name);
3566 iface->type = "system";
3568 port = xzalloc(sizeof *port);
3569 port->interfaces = xmemdup(&iface, sizeof iface);
3570 port->n_interfaces = 1;
3571 port->name = xstrdup(vlan_dev_name);
3572 port->vlan_mode = "splinter";
3573 port->tag = xmalloc(sizeof *port->tag);
3575 port->key_other_config = xmalloc(sizeof *port->key_other_config);
3576 port->key_other_config[0] = "realdev";
3577 port->value_other_config = xmalloc(sizeof *port->value_other_config);
3578 port->value_other_config[0] = xstrdup(real_dev_name);
3579 port->n_other_config = 1;
3581 register_block(iface);
3582 register_block(iface->name);
3583 register_block(port);
3584 register_block(port->interfaces);
3585 register_block(port->name);
3586 register_block(port->tag);
3587 register_block(port->key_other_config);
3588 register_block(port->value_other_config);
3589 register_block(port->value_other_config[0]);
3594 /* For each interface with 'br' that has VLAN splinters enabled, adds a
3595 * corresponding ovsrec_port to 'ports' for each splinter VLAN marked with a
3596 * 1-bit in the 'splinter_vlans' bitmap. */
3598 add_vlan_splinter_ports(struct bridge *br,
3599 const unsigned long int *splinter_vlans,
3600 struct shash *ports)
3604 /* We iterate through 'br->cfg->ports' instead of 'ports' here because
3605 * we're modifying 'ports'. */
3606 for (i = 0; i < br->cfg->n_ports; i++) {
3607 const char *name = br->cfg->ports[i]->name;
3608 struct ovsrec_port *port_cfg = shash_find_data(ports, name);
3611 for (j = 0; j < port_cfg->n_interfaces; j++) {
3612 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[j];
3614 if (vlan_splinters_is_enabled(iface_cfg)) {
3615 const char *real_dev_name;
3618 real_dev_name = iface_cfg->name;
3619 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
3620 const char *vlan_dev_name;
3622 vlan_dev_name = vlandev_get_name(real_dev_name, vid);
3624 && !shash_find(ports, vlan_dev_name)) {
3625 shash_add(ports, vlan_dev_name,
3626 synthesize_splinter_port(
3627 real_dev_name, vlan_dev_name, vid));
3636 mirror_refresh_stats(struct mirror *m)
3638 struct ofproto *ofproto = m->bridge->ofproto;
3639 uint64_t tx_packets, tx_bytes;
3642 size_t stat_cnt = 0;
3644 if (ofproto_mirror_get_stats(ofproto, m, &tx_packets, &tx_bytes)) {
3645 ovsrec_mirror_set_statistics(m->cfg, NULL, NULL, 0);
3649 if (tx_packets != UINT64_MAX) {
3650 keys[stat_cnt] = "tx_packets";
3651 values[stat_cnt] = tx_packets;
3654 if (tx_bytes != UINT64_MAX) {
3655 keys[stat_cnt] = "tx_bytes";
3656 values[stat_cnt] = tx_bytes;
3660 ovsrec_mirror_set_statistics(m->cfg, keys, values, stat_cnt);