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"
36 #include "meta-flow.h"
38 #include "ofp-print.h"
40 #include "ofproto/ofproto.h"
41 #include "poll-loop.h"
44 #include "socket-util.h"
46 #include "stream-ssl.h"
48 #include "system-stats.h"
53 #include "vswitch-idl.h"
54 #include "xenserver.h"
56 #include "sflow_api.h"
57 #include "vlan-bitmap.h"
59 VLOG_DEFINE_THIS_MODULE(bridge);
61 COVERAGE_DEFINE(bridge_reconfigure);
64 /* These members are always valid. */
65 struct list port_elem; /* Element in struct port's "ifaces" list. */
66 struct hmap_node name_node; /* In struct bridge's "iface_by_name" hmap. */
67 struct port *port; /* Containing port. */
68 char *name; /* Host network device name. */
69 tag_type tag; /* Tag associated with this interface. */
71 /* These members are valid only after bridge_reconfigure() causes them to
73 struct hmap_node ofp_port_node; /* In struct bridge's "ifaces" hmap. */
74 int ofp_port; /* OpenFlow port number, -1 if unknown. */
75 struct netdev *netdev; /* Network device. */
76 const char *type; /* Usually same as cfg->type. */
77 const struct ovsrec_interface *cfg;
81 struct uuid uuid; /* UUID of this "mirror" record in database. */
82 struct hmap_node hmap_node; /* In struct bridge's "mirrors" hmap. */
83 struct bridge *bridge;
85 const struct ovsrec_mirror *cfg;
89 struct bridge *bridge;
90 struct hmap_node hmap_node; /* Element in struct bridge's "ports" hmap. */
93 const struct ovsrec_port *cfg;
95 /* An ordinary bridge port has 1 interface.
96 * A bridge port for bonding has at least 2 interfaces. */
97 struct list ifaces; /* List of "struct iface"s. */
101 struct hmap_node node; /* In 'all_bridges'. */
102 char *name; /* User-specified arbitrary name. */
103 char *type; /* Datapath type. */
104 uint8_t ea[ETH_ADDR_LEN]; /* Bridge Ethernet Address. */
105 uint8_t default_ea[ETH_ADDR_LEN]; /* Default MAC. */
106 const struct ovsrec_bridge *cfg;
108 /* OpenFlow switch processing. */
109 struct ofproto *ofproto; /* OpenFlow switch. */
112 struct hmap ports; /* "struct port"s indexed by name. */
113 struct hmap ifaces; /* "struct iface"s indexed by ofp_port. */
114 struct hmap iface_by_name; /* "struct iface"s indexed by name. */
116 /* Port mirroring. */
117 struct hmap mirrors; /* "struct mirror" indexed by UUID. */
119 /* Synthetic local port if necessary. */
120 struct ovsrec_port synth_local_port;
121 struct ovsrec_interface synth_local_iface;
122 struct ovsrec_interface *synth_local_ifacep;
125 /* All bridges, indexed by name. */
126 static struct hmap all_bridges = HMAP_INITIALIZER(&all_bridges);
128 /* OVSDB IDL used to obtain configuration. */
129 static struct ovsdb_idl *idl;
131 /* Each time this timer expires, the bridge fetches systems and interface
132 * statistics and pushes them into the database. */
133 #define STATS_INTERVAL (5 * 1000) /* In milliseconds. */
134 static long long int stats_timer = LLONG_MIN;
136 /* Stores the time after which rate limited statistics may be written to the
137 * database. Only updated when changes to the database require rate limiting.
139 #define DB_LIMIT_INTERVAL (1 * 1000) /* In milliseconds. */
140 static long long int db_limiter = LLONG_MIN;
142 static void add_del_bridges(const struct ovsrec_open_vswitch *);
143 static void bridge_del_ofprotos(void);
144 static bool bridge_add_ofprotos(struct bridge *);
145 static void bridge_create(const struct ovsrec_bridge *);
146 static void bridge_destroy(struct bridge *);
147 static struct bridge *bridge_lookup(const char *name);
148 static unixctl_cb_func bridge_unixctl_dump_flows;
149 static unixctl_cb_func bridge_unixctl_reconnect;
150 static size_t bridge_get_controllers(const struct bridge *br,
151 struct ovsrec_controller ***controllersp);
152 static void bridge_add_del_ports(struct bridge *,
153 const unsigned long int *splinter_vlans);
154 static void bridge_add_ofproto_ports(struct bridge *);
155 static void bridge_del_ofproto_ports(struct bridge *);
156 static void bridge_refresh_ofp_port(struct bridge *);
157 static void bridge_configure_datapath_id(struct bridge *);
158 static void bridge_configure_flow_eviction_threshold(struct bridge *);
159 static void bridge_configure_netflow(struct bridge *);
160 static void bridge_configure_forward_bpdu(struct bridge *);
161 static void bridge_configure_mac_idle_time(struct bridge *);
162 static void bridge_configure_sflow(struct bridge *, int *sflow_bridge_number);
163 static void bridge_configure_stp(struct bridge *);
164 static void bridge_configure_tables(struct bridge *);
165 static void bridge_configure_remotes(struct bridge *,
166 const struct sockaddr_in *managers,
168 static void bridge_pick_local_hw_addr(struct bridge *,
169 uint8_t ea[ETH_ADDR_LEN],
170 struct iface **hw_addr_iface);
171 static uint64_t bridge_pick_datapath_id(struct bridge *,
172 const uint8_t bridge_ea[ETH_ADDR_LEN],
173 struct iface *hw_addr_iface);
174 static const char *bridge_get_other_config(const struct ovsrec_bridge *,
176 static const char *get_port_other_config(const struct ovsrec_port *,
178 const char *default_value);
179 static uint64_t dpid_from_hash(const void *, size_t nbytes);
180 static bool bridge_has_bond_fake_iface(const struct bridge *,
182 static bool port_is_bond_fake_iface(const struct port *);
184 static unixctl_cb_func qos_unixctl_show;
186 static struct port *port_create(struct bridge *, const struct ovsrec_port *);
187 static void port_add_ifaces(struct port *);
188 static void port_del_ifaces(struct port *);
189 static void port_destroy(struct port *);
190 static struct port *port_lookup(const struct bridge *, const char *name);
191 static void port_configure(struct port *);
192 static struct lacp_settings *port_configure_lacp(struct port *,
193 struct lacp_settings *);
194 static void port_configure_bond(struct port *, struct bond_settings *,
195 uint32_t *bond_stable_ids);
196 static bool port_is_synthetic(const struct port *);
198 static void bridge_configure_mirrors(struct bridge *);
199 static struct mirror *mirror_create(struct bridge *,
200 const struct ovsrec_mirror *);
201 static void mirror_destroy(struct mirror *);
202 static bool mirror_configure(struct mirror *);
203 static void mirror_refresh_stats(struct mirror *);
205 static void iface_configure_lacp(struct iface *, struct lacp_slave_settings *);
206 static struct iface *iface_create(struct port *port,
207 const struct ovsrec_interface *if_cfg);
208 static void iface_destroy(struct iface *);
209 static struct iface *iface_lookup(const struct bridge *, const char *name);
210 static struct iface *iface_find(const char *name);
211 static struct iface *iface_from_ofp_port(const struct bridge *,
213 static void iface_set_mac(struct iface *);
214 static void iface_set_ofport(const struct ovsrec_interface *, int64_t ofport);
215 static void iface_clear_db_record(const struct ovsrec_interface *if_cfg);
216 static void iface_configure_qos(struct iface *, const struct ovsrec_qos *);
217 static void iface_configure_cfm(struct iface *);
218 static void iface_refresh_cfm_stats(struct iface *);
219 static void iface_refresh_stats(struct iface *);
220 static void iface_refresh_status(struct iface *);
221 static bool iface_is_synthetic(const struct iface *);
222 static const char *get_interface_other_config(const struct ovsrec_interface *,
224 const char *default_value);
226 static void shash_from_ovs_idl_map(char **keys, char **values, size_t n,
228 static void shash_to_ovs_idl_map(struct shash *,
229 char ***keys, char ***values, size_t *n);
231 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
233 * This is deprecated. It is only for compatibility with broken device drivers
234 * in old versions of Linux that do not properly support VLANs when VLAN
235 * devices are not used. When broken device drivers are no longer in
236 * widespread use, we will delete these interfaces. */
238 /* True if VLAN splinters are enabled on any interface, false otherwise.*/
239 static bool vlan_splinters_enabled_anywhere;
241 static bool vlan_splinters_is_enabled(const struct ovsrec_interface *);
242 static unsigned long int *collect_splinter_vlans(
243 const struct ovsrec_open_vswitch *);
244 static void configure_splinter_port(struct port *);
245 static void add_vlan_splinter_ports(struct bridge *,
246 const unsigned long int *splinter_vlans,
247 struct shash *ports);
249 /* Public functions. */
251 /* Initializes the bridge module, configuring it to obtain its configuration
252 * from an OVSDB server accessed over 'remote', which should be a string in a
253 * form acceptable to ovsdb_idl_create(). */
255 bridge_init(const char *remote)
257 /* Create connection to database. */
258 idl = ovsdb_idl_create(remote, &ovsrec_idl_class, true);
259 ovsdb_idl_set_lock(idl, "ovs_vswitchd");
261 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_cur_cfg);
262 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_statistics);
263 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_external_ids);
264 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_ovs_version);
265 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_db_version);
266 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_type);
267 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_version);
269 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_datapath_id);
270 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_status);
271 ovsdb_idl_omit(idl, &ovsrec_bridge_col_external_ids);
273 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_status);
274 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_statistics);
275 ovsdb_idl_omit(idl, &ovsrec_port_col_external_ids);
276 ovsdb_idl_omit(idl, &ovsrec_port_col_fake_bridge);
278 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_admin_state);
279 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_duplex);
280 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_speed);
281 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_state);
282 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_resets);
283 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mtu);
284 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ofport);
285 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_statistics);
286 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_status);
287 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault);
288 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault_status);
289 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_remote_mpids);
290 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_lacp_current);
291 ovsdb_idl_omit(idl, &ovsrec_interface_col_external_ids);
293 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_is_connected);
294 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_role);
295 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_status);
296 ovsdb_idl_omit(idl, &ovsrec_controller_col_external_ids);
298 ovsdb_idl_omit(idl, &ovsrec_qos_col_external_ids);
300 ovsdb_idl_omit(idl, &ovsrec_queue_col_external_ids);
302 ovsdb_idl_omit(idl, &ovsrec_mirror_col_external_ids);
303 ovsdb_idl_omit_alert(idl, &ovsrec_mirror_col_statistics);
305 ovsdb_idl_omit(idl, &ovsrec_netflow_col_external_ids);
307 ovsdb_idl_omit(idl, &ovsrec_sflow_col_external_ids);
309 ovsdb_idl_omit(idl, &ovsrec_manager_col_external_ids);
310 ovsdb_idl_omit(idl, &ovsrec_manager_col_inactivity_probe);
311 ovsdb_idl_omit(idl, &ovsrec_manager_col_is_connected);
312 ovsdb_idl_omit(idl, &ovsrec_manager_col_max_backoff);
313 ovsdb_idl_omit(idl, &ovsrec_manager_col_status);
315 ovsdb_idl_omit(idl, &ovsrec_ssl_col_external_ids);
317 /* Register unixctl commands. */
318 unixctl_command_register("qos/show", "interface", 1, 1,
319 qos_unixctl_show, NULL);
320 unixctl_command_register("bridge/dump-flows", "bridge", 1, 1,
321 bridge_unixctl_dump_flows, NULL);
322 unixctl_command_register("bridge/reconnect", "[bridge]", 0, 1,
323 bridge_unixctl_reconnect, NULL);
333 struct bridge *br, *next_br;
335 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
338 ovsdb_idl_destroy(idl);
341 /* Looks at the list of managers in 'ovs_cfg' and extracts their remote IP
342 * addresses and ports into '*managersp' and '*n_managersp'. The caller is
343 * responsible for freeing '*managersp' (with free()).
345 * You may be asking yourself "why does ovs-vswitchd care?", because
346 * ovsdb-server is responsible for connecting to the managers, and ovs-vswitchd
347 * should not be and in fact is not directly involved in that. But
348 * ovs-vswitchd needs to make sure that ovsdb-server can reach the managers, so
349 * it has to tell in-band control where the managers are to enable that.
350 * (Thus, only managers connected in-band are collected.)
353 collect_in_band_managers(const struct ovsrec_open_vswitch *ovs_cfg,
354 struct sockaddr_in **managersp, size_t *n_managersp)
356 struct sockaddr_in *managers = NULL;
357 size_t n_managers = 0;
361 /* Collect all of the potential targets from the "targets" columns of the
362 * rows pointed to by "manager_options", excluding any that are
365 for (i = 0; i < ovs_cfg->n_manager_options; i++) {
366 struct ovsrec_manager *m = ovs_cfg->manager_options[i];
368 if (m->connection_mode && !strcmp(m->connection_mode, "out-of-band")) {
369 sset_find_and_delete(&targets, m->target);
371 sset_add(&targets, m->target);
375 /* Now extract the targets' IP addresses. */
376 if (!sset_is_empty(&targets)) {
379 managers = xmalloc(sset_count(&targets) * sizeof *managers);
380 SSET_FOR_EACH (target, &targets) {
381 struct sockaddr_in *sin = &managers[n_managers];
383 if (stream_parse_target_with_default_ports(target,
391 sset_destroy(&targets);
393 *managersp = managers;
394 *n_managersp = n_managers;
398 bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
400 unsigned long int *splinter_vlans;
401 struct sockaddr_in *managers;
402 struct bridge *br, *next;
403 int sflow_bridge_number;
406 COVERAGE_INC(bridge_reconfigure);
408 /* Create and destroy "struct bridge"s, "struct port"s, and "struct
409 * iface"s according to 'ovs_cfg', with only very minimal configuration
412 * This is mostly an update to bridge data structures. Very little is
413 * pushed down to ofproto or lower layers. */
414 add_del_bridges(ovs_cfg);
415 splinter_vlans = collect_splinter_vlans(ovs_cfg);
416 HMAP_FOR_EACH (br, node, &all_bridges) {
417 bridge_add_del_ports(br, splinter_vlans);
419 free(splinter_vlans);
421 /* Delete all datapaths and datapath ports that are no longer configured.
423 * The kernel will reject any attempt to add a given port to a datapath if
424 * that port already belongs to a different datapath, so we must do all
425 * port deletions before any port additions. A datapath always has a
426 * "local port" so we must delete not-configured datapaths too. */
427 bridge_del_ofprotos();
428 HMAP_FOR_EACH (br, node, &all_bridges) {
430 bridge_del_ofproto_ports(br);
434 /* Create datapaths and datapath ports that are missing.
436 * After this is done, we have our final set of bridges, ports, and
437 * interfaces. Every "struct bridge" has an ofproto, every "struct port"
438 * has at least one iface, every "struct iface" has a valid ofp_port and
440 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
442 if (bridge_add_ofprotos(br)) {
443 bridge_del_ofproto_ports(br);
449 HMAP_FOR_EACH (br, node, &all_bridges) {
450 bridge_refresh_ofp_port(br);
451 bridge_add_ofproto_ports(br);
454 /* Complete the configuration. */
455 sflow_bridge_number = 0;
456 collect_in_band_managers(ovs_cfg, &managers, &n_managers);
457 HMAP_FOR_EACH (br, node, &all_bridges) {
460 /* We need the datapath ID early to allow LACP ports to use it as the
461 * default system ID. */
462 bridge_configure_datapath_id(br);
464 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
467 port_configure(port);
469 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
470 iface_configure_cfm(iface);
471 iface_configure_qos(iface, port->cfg->qos);
472 iface_set_mac(iface);
475 bridge_configure_mirrors(br);
476 bridge_configure_flow_eviction_threshold(br);
477 bridge_configure_forward_bpdu(br);
478 bridge_configure_mac_idle_time(br);
479 bridge_configure_remotes(br, managers, n_managers);
480 bridge_configure_netflow(br);
481 bridge_configure_sflow(br, &sflow_bridge_number);
482 bridge_configure_stp(br);
483 bridge_configure_tables(br);
487 /* ovs-vswitchd has completed initialization, so allow the process that
488 * forked us to exit successfully. */
489 daemonize_complete();
492 /* Iterate over all ofprotos and delete any of them that do not have a
493 * configured bridge or that are the wrong type. */
495 bridge_del_ofprotos(void)
503 ofproto_enumerate_types(&types);
504 SSET_FOR_EACH (type, &types) {
507 ofproto_enumerate_names(type, &names);
508 SSET_FOR_EACH (name, &names) {
509 struct bridge *br = bridge_lookup(name);
510 if (!br || strcmp(type, br->type)) {
511 ofproto_delete(name, type);
515 sset_destroy(&names);
516 sset_destroy(&types);
520 bridge_add_ofprotos(struct bridge *br)
522 int error = ofproto_create(br->name, br->type, &br->ofproto);
524 VLOG_ERR("failed to create bridge %s: %s", br->name, strerror(error));
531 port_configure(struct port *port)
533 const struct ovsrec_port *cfg = port->cfg;
534 struct bond_settings bond_settings;
535 struct lacp_settings lacp_settings;
536 struct ofproto_bundle_settings s;
539 if (cfg->vlan_mode && !strcmp(cfg->vlan_mode, "splinter")) {
540 configure_splinter_port(port);
549 s.slaves = xmalloc(list_size(&port->ifaces) * sizeof *s.slaves);
550 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
551 s.slaves[s.n_slaves++] = iface->ofp_port;
556 if (cfg->tag && *cfg->tag >= 0 && *cfg->tag <= 4095) {
560 /* Get VLAN trunks. */
563 s.trunks = vlan_bitmap_from_array(cfg->trunks, cfg->n_trunks);
567 if (cfg->vlan_mode) {
568 if (!strcmp(cfg->vlan_mode, "access")) {
569 s.vlan_mode = PORT_VLAN_ACCESS;
570 } else if (!strcmp(cfg->vlan_mode, "trunk")) {
571 s.vlan_mode = PORT_VLAN_TRUNK;
572 } else if (!strcmp(cfg->vlan_mode, "native-tagged")) {
573 s.vlan_mode = PORT_VLAN_NATIVE_TAGGED;
574 } else if (!strcmp(cfg->vlan_mode, "native-untagged")) {
575 s.vlan_mode = PORT_VLAN_NATIVE_UNTAGGED;
577 /* This "can't happen" because ovsdb-server should prevent it. */
578 VLOG_ERR("unknown VLAN mode %s", cfg->vlan_mode);
579 s.vlan_mode = PORT_VLAN_TRUNK;
583 s.vlan_mode = PORT_VLAN_ACCESS;
585 VLOG_ERR("port %s: ignoring trunks in favor of implicit vlan",
589 s.vlan_mode = PORT_VLAN_TRUNK;
592 s.use_priority_tags = !strcmp("true", get_port_other_config(
593 cfg, "priority-tags", ""));
595 /* Get LACP settings. */
596 s.lacp = port_configure_lacp(port, &lacp_settings);
600 s.lacp_slaves = xmalloc(s.n_slaves * sizeof *s.lacp_slaves);
601 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
602 iface_configure_lacp(iface, &s.lacp_slaves[i++]);
605 s.lacp_slaves = NULL;
608 /* Get bond settings. */
609 if (s.n_slaves > 1) {
610 s.bond = &bond_settings;
611 s.bond_stable_ids = xmalloc(s.n_slaves * sizeof *s.bond_stable_ids);
612 port_configure_bond(port, &bond_settings, s.bond_stable_ids);
615 s.bond_stable_ids = NULL;
617 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
618 netdev_set_miimon_interval(iface->netdev, 0);
623 ofproto_bundle_register(port->bridge->ofproto, port, &s);
629 free(s.bond_stable_ids);
632 /* Pick local port hardware address and datapath ID for 'br'. */
634 bridge_configure_datapath_id(struct bridge *br)
636 uint8_t ea[ETH_ADDR_LEN];
638 struct iface *local_iface;
639 struct iface *hw_addr_iface;
642 bridge_pick_local_hw_addr(br, ea, &hw_addr_iface);
643 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
645 int error = netdev_set_etheraddr(local_iface->netdev, ea);
647 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
648 VLOG_ERR_RL(&rl, "bridge %s: failed to set bridge "
649 "Ethernet address: %s",
650 br->name, strerror(error));
653 memcpy(br->ea, ea, ETH_ADDR_LEN);
655 dpid = bridge_pick_datapath_id(br, ea, hw_addr_iface);
656 ofproto_set_datapath_id(br->ofproto, dpid);
658 dpid_string = xasprintf("%016"PRIx64, dpid);
659 ovsrec_bridge_set_datapath_id(br->cfg, dpid_string);
663 /* Set NetFlow configuration on 'br'. */
665 bridge_configure_netflow(struct bridge *br)
667 struct ovsrec_netflow *cfg = br->cfg->netflow;
668 struct netflow_options opts;
671 ofproto_set_netflow(br->ofproto, NULL);
675 memset(&opts, 0, sizeof opts);
677 /* Get default NetFlow configuration from datapath.
678 * Apply overrides from 'cfg'. */
679 ofproto_get_netflow_ids(br->ofproto, &opts.engine_type, &opts.engine_id);
680 if (cfg->engine_type) {
681 opts.engine_type = *cfg->engine_type;
683 if (cfg->engine_id) {
684 opts.engine_id = *cfg->engine_id;
687 /* Configure active timeout interval. */
688 opts.active_timeout = cfg->active_timeout;
689 if (!opts.active_timeout) {
690 opts.active_timeout = -1;
691 } else if (opts.active_timeout < 0) {
692 VLOG_WARN("bridge %s: active timeout interval set to negative "
693 "value, using default instead (%d seconds)", br->name,
694 NF_ACTIVE_TIMEOUT_DEFAULT);
695 opts.active_timeout = -1;
698 /* Add engine ID to interface number to disambiguate bridgs? */
699 opts.add_id_to_iface = cfg->add_id_to_interface;
700 if (opts.add_id_to_iface) {
701 if (opts.engine_id > 0x7f) {
702 VLOG_WARN("bridge %s: NetFlow port mangling may conflict with "
703 "another vswitch, choose an engine id less than 128",
706 if (hmap_count(&br->ports) > 508) {
707 VLOG_WARN("bridge %s: NetFlow port mangling will conflict with "
708 "another port when more than 508 ports are used",
714 sset_init(&opts.collectors);
715 sset_add_array(&opts.collectors, cfg->targets, cfg->n_targets);
718 if (ofproto_set_netflow(br->ofproto, &opts)) {
719 VLOG_ERR("bridge %s: problem setting netflow collectors", br->name);
721 sset_destroy(&opts.collectors);
724 /* Set sFlow configuration on 'br'. */
726 bridge_configure_sflow(struct bridge *br, int *sflow_bridge_number)
728 const struct ovsrec_sflow *cfg = br->cfg->sflow;
729 struct ovsrec_controller **controllers;
730 struct ofproto_sflow_options oso;
731 size_t n_controllers;
735 ofproto_set_sflow(br->ofproto, NULL);
739 memset(&oso, 0, sizeof oso);
741 sset_init(&oso.targets);
742 sset_add_array(&oso.targets, cfg->targets, cfg->n_targets);
744 oso.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
746 oso.sampling_rate = *cfg->sampling;
749 oso.polling_interval = SFL_DEFAULT_POLLING_INTERVAL;
751 oso.polling_interval = *cfg->polling;
754 oso.header_len = SFL_DEFAULT_HEADER_SIZE;
756 oso.header_len = *cfg->header;
759 oso.sub_id = (*sflow_bridge_number)++;
760 oso.agent_device = cfg->agent;
762 oso.control_ip = NULL;
763 n_controllers = bridge_get_controllers(br, &controllers);
764 for (i = 0; i < n_controllers; i++) {
765 if (controllers[i]->local_ip) {
766 oso.control_ip = controllers[i]->local_ip;
770 ofproto_set_sflow(br->ofproto, &oso);
772 sset_destroy(&oso.targets);
776 port_configure_stp(const struct ofproto *ofproto, struct port *port,
777 struct ofproto_port_stp_settings *port_s,
778 int *port_num_counter, unsigned long *port_num_bitmap)
780 const char *config_str;
783 config_str = get_port_other_config(port->cfg, "stp-enable", NULL);
784 if (config_str && !strcmp(config_str, "false")) {
785 port_s->enable = false;
788 port_s->enable = true;
791 /* STP over bonds is not supported. */
792 if (!list_is_singleton(&port->ifaces)) {
793 VLOG_ERR("port %s: cannot enable STP on bonds, disabling",
795 port_s->enable = false;
799 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
801 /* Internal ports shouldn't participate in spanning tree, so
803 if (!strcmp(iface->type, "internal")) {
804 VLOG_DBG("port %s: disable STP on internal ports", port->name);
805 port_s->enable = false;
809 /* STP on mirror output ports is not supported. */
810 if (ofproto_is_mirror_output_bundle(ofproto, port)) {
811 VLOG_DBG("port %s: disable STP on mirror ports", port->name);
812 port_s->enable = false;
816 config_str = get_port_other_config(port->cfg, "stp-port-num", NULL);
818 unsigned long int port_num = strtoul(config_str, NULL, 0);
819 int port_idx = port_num - 1;
821 if (port_num < 1 || port_num > STP_MAX_PORTS) {
822 VLOG_ERR("port %s: invalid stp-port-num", port->name);
823 port_s->enable = false;
827 if (bitmap_is_set(port_num_bitmap, port_idx)) {
828 VLOG_ERR("port %s: duplicate stp-port-num %lu, disabling",
829 port->name, port_num);
830 port_s->enable = false;
833 bitmap_set1(port_num_bitmap, port_idx);
834 port_s->port_num = port_idx;
836 if (*port_num_counter > STP_MAX_PORTS) {
837 VLOG_ERR("port %s: too many STP ports, disabling", port->name);
838 port_s->enable = false;
842 port_s->port_num = (*port_num_counter)++;
845 config_str = get_port_other_config(port->cfg, "stp-path-cost", NULL);
847 port_s->path_cost = strtoul(config_str, NULL, 10);
849 enum netdev_features current;
851 if (netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL)) {
852 /* Couldn't get speed, so assume 100Mb/s. */
853 port_s->path_cost = 19;
857 mbps = netdev_features_to_bps(current) / 1000000;
858 port_s->path_cost = stp_convert_speed_to_cost(mbps);
862 config_str = get_port_other_config(port->cfg, "stp-port-priority", NULL);
864 port_s->priority = strtoul(config_str, NULL, 0);
866 port_s->priority = STP_DEFAULT_PORT_PRIORITY;
870 /* Set spanning tree configuration on 'br'. */
872 bridge_configure_stp(struct bridge *br)
874 if (!br->cfg->stp_enable) {
875 ofproto_set_stp(br->ofproto, NULL);
877 struct ofproto_stp_settings br_s;
878 const char *config_str;
880 int port_num_counter;
881 unsigned long *port_num_bitmap;
883 config_str = bridge_get_other_config(br->cfg, "stp-system-id");
885 uint8_t ea[ETH_ADDR_LEN];
887 if (eth_addr_from_string(config_str, ea)) {
888 br_s.system_id = eth_addr_to_uint64(ea);
890 br_s.system_id = eth_addr_to_uint64(br->ea);
891 VLOG_ERR("bridge %s: invalid stp-system-id, defaulting "
892 "to "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(br->ea));
895 br_s.system_id = eth_addr_to_uint64(br->ea);
898 config_str = bridge_get_other_config(br->cfg, "stp-priority");
900 br_s.priority = strtoul(config_str, NULL, 0);
902 br_s.priority = STP_DEFAULT_BRIDGE_PRIORITY;
905 config_str = bridge_get_other_config(br->cfg, "stp-hello-time");
907 br_s.hello_time = strtoul(config_str, NULL, 10) * 1000;
909 br_s.hello_time = STP_DEFAULT_HELLO_TIME;
912 config_str = bridge_get_other_config(br->cfg, "stp-max-age");
914 br_s.max_age = strtoul(config_str, NULL, 10) * 1000;
916 br_s.max_age = STP_DEFAULT_MAX_AGE;
919 config_str = bridge_get_other_config(br->cfg, "stp-forward-delay");
921 br_s.fwd_delay = strtoul(config_str, NULL, 10) * 1000;
923 br_s.fwd_delay = STP_DEFAULT_FWD_DELAY;
926 /* Configure STP on the bridge. */
927 if (ofproto_set_stp(br->ofproto, &br_s)) {
928 VLOG_ERR("bridge %s: could not enable STP", br->name);
932 /* Users must either set the port number with the "stp-port-num"
933 * configuration on all ports or none. If manual configuration
934 * is not done, then we allocate them sequentially. */
935 port_num_counter = 0;
936 port_num_bitmap = bitmap_allocate(STP_MAX_PORTS);
937 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
938 struct ofproto_port_stp_settings port_s;
941 port_configure_stp(br->ofproto, port, &port_s,
942 &port_num_counter, port_num_bitmap);
944 /* As bonds are not supported, just apply configuration to
946 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
947 if (ofproto_port_set_stp(br->ofproto, iface->ofp_port,
949 VLOG_ERR("port %s: could not enable STP", port->name);
955 if (bitmap_scan(port_num_bitmap, 0, STP_MAX_PORTS) != STP_MAX_PORTS
956 && port_num_counter) {
957 VLOG_ERR("bridge %s: must manually configure all STP port "
958 "IDs or none, disabling", br->name);
959 ofproto_set_stp(br->ofproto, NULL);
961 bitmap_free(port_num_bitmap);
966 bridge_has_bond_fake_iface(const struct bridge *br, const char *name)
968 const struct port *port = port_lookup(br, name);
969 return port && port_is_bond_fake_iface(port);
973 port_is_bond_fake_iface(const struct port *port)
975 return port->cfg->bond_fake_iface && !list_is_short(&port->ifaces);
979 add_del_bridges(const struct ovsrec_open_vswitch *cfg)
981 struct bridge *br, *next;
985 /* Collect new bridges' names and types. */
987 for (i = 0; i < cfg->n_bridges; i++) {
988 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
989 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
991 if (strchr(br_cfg->name, '/')) {
992 /* Prevent remote ovsdb-server users from accessing arbitrary
993 * directories, e.g. consider a bridge named "../../../etc/". */
994 VLOG_WARN_RL(&rl, "ignoring bridge with invalid name \"%s\"",
996 } else if (!shash_add_once(&new_br, br_cfg->name, br_cfg)) {
997 VLOG_WARN_RL(&rl, "bridge %s specified twice", br_cfg->name);
1001 /* Get rid of deleted bridges or those whose types have changed.
1002 * Update 'cfg' of bridges that still exist. */
1003 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
1004 br->cfg = shash_find_data(&new_br, br->name);
1005 if (!br->cfg || strcmp(br->type, ofproto_normalize_type(
1006 br->cfg->datapath_type))) {
1011 /* Add new bridges. */
1012 for (i = 0; i < cfg->n_bridges; i++) {
1013 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
1014 struct bridge *br = bridge_lookup(br_cfg->name);
1016 bridge_create(br_cfg);
1020 shash_destroy(&new_br);
1023 /* Delete each ofproto port on 'br' that doesn't have a corresponding "struct
1026 * The kernel will reject any attempt to add a given port to a datapath if that
1027 * port already belongs to a different datapath, so we must do all port
1028 * deletions before any port additions. */
1030 bridge_del_ofproto_ports(struct bridge *br)
1032 struct ofproto_port_dump dump;
1033 struct ofproto_port ofproto_port;
1035 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
1036 const char *name = ofproto_port.name;
1037 struct iface *iface;
1041 /* Ignore the local port. We can't change it anyhow. */
1042 if (!strcmp(name, br->name)) {
1046 /* Get the type that 'ofproto_port' should have (ordinarily the
1047 * type of its corresponding iface) or NULL if it should be
1049 iface = iface_lookup(br, name);
1050 type = (iface ? iface->type
1051 : bridge_has_bond_fake_iface(br, name) ? "internal"
1054 /* If it's the wrong type then delete the ofproto port. */
1056 && !strcmp(ofproto_port.type, type)
1057 && (!iface || !iface->netdev
1058 || !strcmp(netdev_get_type(iface->netdev), type))) {
1061 error = ofproto_port_del(br->ofproto, ofproto_port.ofp_port);
1063 VLOG_WARN("bridge %s: failed to remove %s interface (%s)",
1064 br->name, name, strerror(error));
1067 netdev_close(iface->netdev);
1068 iface->netdev = NULL;
1074 iface_set_ofp_port(struct iface *iface, int ofp_port)
1076 struct bridge *br = iface->port->bridge;
1078 assert(iface->ofp_port < 0 && ofp_port >= 0);
1079 iface->ofp_port = ofp_port;
1080 hmap_insert(&br->ifaces, &iface->ofp_port_node, hash_int(ofp_port, 0));
1081 iface_set_ofport(iface->cfg, ofp_port);
1085 bridge_refresh_ofp_port(struct bridge *br)
1087 struct ofproto_port_dump dump;
1088 struct ofproto_port ofproto_port;
1091 /* Clear all the "ofp_port"es. */
1092 hmap_clear(&br->ifaces);
1093 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1094 struct iface *iface;
1096 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1097 iface->ofp_port = -1;
1101 /* Obtain the correct "ofp_port"s from ofproto. */
1102 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
1103 struct iface *iface = iface_lookup(br, ofproto_port.name);
1105 if (iface->ofp_port >= 0) {
1106 VLOG_WARN("bridge %s: interface %s reported twice",
1107 br->name, ofproto_port.name);
1108 } else if (iface_from_ofp_port(br, ofproto_port.ofp_port)) {
1109 VLOG_WARN("bridge %s: interface %"PRIu16" reported twice",
1110 br->name, ofproto_port.ofp_port);
1112 iface_set_ofp_port(iface, ofproto_port.ofp_port);
1118 /* Add an ofproto port for any "struct iface" that doesn't have one.
1119 * Delete any "struct iface" for which this fails.
1120 * Delete any "struct port" that thereby ends up with no ifaces. */
1122 bridge_add_ofproto_ports(struct bridge *br)
1124 struct port *port, *next_port;
1126 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
1127 struct iface *iface, *next_iface;
1128 struct ofproto_port ofproto_port;
1130 LIST_FOR_EACH_SAFE (iface, next_iface, port_elem, &port->ifaces) {
1133 /* Open the netdev. */
1134 if (!iface->netdev) {
1135 error = netdev_open(iface->name, iface->type, &iface->netdev);
1137 VLOG_WARN("could not open network device %s (%s)",
1138 iface->name, strerror(error));
1142 && port->cfg->vlan_mode
1143 && !strcmp(port->cfg->vlan_mode, "splinter")) {
1144 netdev_turn_flags_on(iface->netdev, NETDEV_UP, true);
1150 /* Configure the netdev. */
1151 if (iface->netdev) {
1155 shash_from_ovs_idl_map(iface->cfg->key_options,
1156 iface->cfg->value_options,
1157 iface->cfg->n_options, &args);
1158 error = netdev_set_config(iface->netdev, &args);
1159 shash_destroy(&args);
1162 VLOG_WARN("could not configure network device %s (%s)",
1163 iface->name, strerror(error));
1164 netdev_close(iface->netdev);
1165 iface->netdev = NULL;
1169 /* Add the port, if necessary. */
1170 if (iface->netdev && iface->ofp_port < 0) {
1174 error = ofproto_port_add(br->ofproto, iface->netdev,
1177 iface_set_ofp_port(iface, ofp_port);
1179 netdev_close(iface->netdev);
1180 iface->netdev = NULL;
1184 /* Populate stats columns in new Interface rows. */
1185 if (iface->netdev && !iface->cfg->mtu) {
1186 iface_refresh_stats(iface);
1187 iface_refresh_status(iface);
1190 /* Delete the iface if we failed. */
1191 if (iface->netdev && iface->ofp_port >= 0) {
1192 VLOG_DBG("bridge %s: interface %s is on port %d",
1193 br->name, iface->name, iface->ofp_port);
1195 if (iface->netdev) {
1196 VLOG_ERR("bridge %s: missing %s interface, dropping",
1197 br->name, iface->name);
1199 /* We already reported a related error, don't bother
1200 * duplicating it. */
1202 iface_clear_db_record(iface->cfg);
1203 iface_destroy(iface);
1206 if (list_is_empty(&port->ifaces)) {
1207 VLOG_WARN("%s port has no interfaces, dropping", port->name);
1212 /* Add bond fake iface if necessary. */
1213 if (port_is_bond_fake_iface(port)) {
1214 if (ofproto_port_query_by_name(br->ofproto, port->name,
1216 struct netdev *netdev;
1219 error = netdev_open(port->name, "internal", &netdev);
1221 ofproto_port_add(br->ofproto, netdev, NULL);
1222 netdev_close(netdev);
1224 VLOG_WARN("could not open network device %s (%s)",
1225 port->name, strerror(error));
1228 /* Already exists, nothing to do. */
1229 ofproto_port_destroy(&ofproto_port);
1236 get_ovsrec_key_value(char **keys, char **values, size_t n, const char *key)
1240 for (i = 0; i < n; i++) {
1241 if (!strcmp(keys[i], key)) {
1249 bridge_get_other_config(const struct ovsrec_bridge *br_cfg, const char *key)
1251 return get_ovsrec_key_value(br_cfg->key_other_config,
1252 br_cfg->value_other_config,
1253 br_cfg->n_other_config, key);
1256 /* Set Flow eviction threshold */
1258 bridge_configure_flow_eviction_threshold(struct bridge *br)
1260 const char *threshold_str;
1263 threshold_str = bridge_get_other_config(br->cfg,
1264 "flow-eviction-threshold");
1265 if (threshold_str) {
1266 threshold = strtoul(threshold_str, NULL, 10);
1268 threshold = OFPROTO_FLOW_EVICTON_THRESHOLD_DEFAULT;
1270 ofproto_set_flow_eviction_threshold(br->ofproto, threshold);
1273 /* Set forward BPDU option. */
1275 bridge_configure_forward_bpdu(struct bridge *br)
1277 const char *forward_bpdu_str;
1278 bool forward_bpdu = false;
1280 forward_bpdu_str = bridge_get_other_config(br->cfg, "forward-bpdu");
1281 if (forward_bpdu_str && !strcmp(forward_bpdu_str, "true")) {
1282 forward_bpdu = true;
1284 ofproto_set_forward_bpdu(br->ofproto, forward_bpdu);
1287 /* Set MAC aging time for 'br'. */
1289 bridge_configure_mac_idle_time(struct bridge *br)
1291 const char *idle_time_str;
1294 idle_time_str = bridge_get_other_config(br->cfg, "mac-aging-time");
1295 idle_time = (idle_time_str && atoi(idle_time_str)
1296 ? atoi(idle_time_str)
1297 : MAC_ENTRY_DEFAULT_IDLE_TIME);
1298 ofproto_set_mac_idle_time(br->ofproto, idle_time);
1302 bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
1303 struct iface **hw_addr_iface)
1305 struct hmapx mirror_output_ports;
1308 bool found_addr = false;
1312 *hw_addr_iface = NULL;
1314 /* Did the user request a particular MAC? */
1315 hwaddr = bridge_get_other_config(br->cfg, "hwaddr");
1316 if (hwaddr && eth_addr_from_string(hwaddr, ea)) {
1317 if (eth_addr_is_multicast(ea)) {
1318 VLOG_ERR("bridge %s: cannot set MAC address to multicast "
1319 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1320 } else if (eth_addr_is_zero(ea)) {
1321 VLOG_ERR("bridge %s: cannot set MAC address to zero", br->name);
1327 /* Mirror output ports don't participate in picking the local hardware
1328 * address. ofproto can't help us find out whether a given port is a
1329 * mirror output because we haven't configured mirrors yet, so we need to
1330 * accumulate them ourselves. */
1331 hmapx_init(&mirror_output_ports);
1332 for (i = 0; i < br->cfg->n_mirrors; i++) {
1333 struct ovsrec_mirror *m = br->cfg->mirrors[i];
1334 if (m->output_port) {
1335 hmapx_add(&mirror_output_ports, m->output_port);
1339 /* Otherwise choose the minimum non-local MAC address among all of the
1341 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1342 uint8_t iface_ea[ETH_ADDR_LEN];
1343 struct iface *candidate;
1344 struct iface *iface;
1346 /* Mirror output ports don't participate. */
1347 if (hmapx_contains(&mirror_output_ports, port->cfg)) {
1351 /* Choose the MAC address to represent the port. */
1353 if (port->cfg->mac && eth_addr_from_string(port->cfg->mac, iface_ea)) {
1354 /* Find the interface with this Ethernet address (if any) so that
1355 * we can provide the correct devname to the caller. */
1356 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1357 uint8_t candidate_ea[ETH_ADDR_LEN];
1358 if (!netdev_get_etheraddr(candidate->netdev, candidate_ea)
1359 && eth_addr_equals(iface_ea, candidate_ea)) {
1364 /* Choose the interface whose MAC address will represent the port.
1365 * The Linux kernel bonding code always chooses the MAC address of
1366 * the first slave added to a bond, and the Fedora networking
1367 * scripts always add slaves to a bond in alphabetical order, so
1368 * for compatibility we choose the interface with the name that is
1369 * first in alphabetical order. */
1370 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1371 if (!iface || strcmp(candidate->name, iface->name) < 0) {
1376 /* The local port doesn't count (since we're trying to choose its
1377 * MAC address anyway). */
1378 if (iface->ofp_port == OFPP_LOCAL) {
1383 error = netdev_get_etheraddr(iface->netdev, iface_ea);
1389 /* Compare against our current choice. */
1390 if (!eth_addr_is_multicast(iface_ea) &&
1391 !eth_addr_is_local(iface_ea) &&
1392 !eth_addr_is_reserved(iface_ea) &&
1393 !eth_addr_is_zero(iface_ea) &&
1394 (!found_addr || eth_addr_compare_3way(iface_ea, ea) < 0))
1396 memcpy(ea, iface_ea, ETH_ADDR_LEN);
1397 *hw_addr_iface = iface;
1402 VLOG_DBG("bridge %s: using bridge Ethernet address "ETH_ADDR_FMT,
1403 br->name, ETH_ADDR_ARGS(ea));
1405 memcpy(ea, br->default_ea, ETH_ADDR_LEN);
1406 *hw_addr_iface = NULL;
1407 VLOG_WARN("bridge %s: using default bridge Ethernet "
1408 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1411 hmapx_destroy(&mirror_output_ports);
1414 /* Choose and returns the datapath ID for bridge 'br' given that the bridge
1415 * Ethernet address is 'bridge_ea'. If 'bridge_ea' is the Ethernet address of
1416 * an interface on 'br', then that interface must be passed in as
1417 * 'hw_addr_iface'; if 'bridge_ea' was derived some other way, then
1418 * 'hw_addr_iface' must be passed in as a null pointer. */
1420 bridge_pick_datapath_id(struct bridge *br,
1421 const uint8_t bridge_ea[ETH_ADDR_LEN],
1422 struct iface *hw_addr_iface)
1425 * The procedure for choosing a bridge MAC address will, in the most
1426 * ordinary case, also choose a unique MAC that we can use as a datapath
1427 * ID. In some special cases, though, multiple bridges will end up with
1428 * the same MAC address. This is OK for the bridges, but it will confuse
1429 * the OpenFlow controller, because each datapath needs a unique datapath
1432 * Datapath IDs must be unique. It is also very desirable that they be
1433 * stable from one run to the next, so that policy set on a datapath
1436 const char *datapath_id;
1439 datapath_id = bridge_get_other_config(br->cfg, "datapath-id");
1440 if (datapath_id && dpid_from_string(datapath_id, &dpid)) {
1444 if (!hw_addr_iface) {
1446 * A purely internal bridge, that is, one that has no non-virtual
1447 * network devices on it at all, is difficult because it has no
1448 * natural unique identifier at all.
1450 * When the host is a XenServer, we handle this case by hashing the
1451 * host's UUID with the name of the bridge. Names of bridges are
1452 * persistent across XenServer reboots, although they can be reused if
1453 * an internal network is destroyed and then a new one is later
1454 * created, so this is fairly effective.
1456 * When the host is not a XenServer, we punt by using a random MAC
1457 * address on each run.
1459 const char *host_uuid = xenserver_get_host_uuid();
1461 char *combined = xasprintf("%s,%s", host_uuid, br->name);
1462 dpid = dpid_from_hash(combined, strlen(combined));
1468 return eth_addr_to_uint64(bridge_ea);
1472 dpid_from_hash(const void *data, size_t n)
1474 uint8_t hash[SHA1_DIGEST_SIZE];
1476 BUILD_ASSERT_DECL(sizeof hash >= ETH_ADDR_LEN);
1477 sha1_bytes(data, n, hash);
1478 eth_addr_mark_random(hash);
1479 return eth_addr_to_uint64(hash);
1483 iface_refresh_status(struct iface *iface)
1487 enum netdev_features current;
1488 enum netdev_flags flags;
1494 if (iface_is_synthetic(iface)) {
1500 if (!netdev_get_drv_info(iface->netdev, &sh)) {
1502 char **keys, **values;
1504 shash_to_ovs_idl_map(&sh, &keys, &values, &n);
1505 ovsrec_interface_set_status(iface->cfg, keys, values, n);
1510 ovsrec_interface_set_status(iface->cfg, NULL, NULL, 0);
1513 shash_destroy_free_data(&sh);
1515 error = netdev_get_flags(iface->netdev, &flags);
1517 ovsrec_interface_set_admin_state(iface->cfg,
1518 flags & NETDEV_UP ? "up" : "down");
1521 ovsrec_interface_set_admin_state(iface->cfg, NULL);
1524 error = netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
1526 ovsrec_interface_set_duplex(iface->cfg,
1527 netdev_features_is_full_duplex(current)
1529 /* warning: uint64_t -> int64_t conversion */
1530 bps = netdev_features_to_bps(current);
1531 ovsrec_interface_set_link_speed(iface->cfg, &bps, 1);
1534 ovsrec_interface_set_duplex(iface->cfg, NULL);
1535 ovsrec_interface_set_link_speed(iface->cfg, NULL, 0);
1538 error = netdev_get_mtu(iface->netdev, &mtu);
1541 ovsrec_interface_set_mtu(iface->cfg, &mtu_64, 1);
1544 ovsrec_interface_set_mtu(iface->cfg, NULL, 0);
1548 /* Writes 'iface''s CFM statistics to the database. */
1550 iface_refresh_cfm_stats(struct iface *iface)
1552 const struct ovsrec_interface *cfg = iface->cfg;
1554 const uint64_t *rmps;
1557 if (iface_is_synthetic(iface)) {
1561 fault = ofproto_port_get_cfm_fault(iface->port->bridge->ofproto,
1564 const char *reasons[CFM_FAULT_N_REASONS];
1565 bool fault_bool = fault;
1569 for (i = 0; i < CFM_FAULT_N_REASONS; i++) {
1570 int reason = 1 << i;
1571 if (fault & reason) {
1572 reasons[j++] = cfm_fault_reason_to_str(reason);
1576 ovsrec_interface_set_cfm_fault(cfg, &fault_bool, 1);
1577 ovsrec_interface_set_cfm_fault_status(cfg, (char **) reasons, j);
1579 ovsrec_interface_set_cfm_fault(cfg, NULL, 0);
1580 ovsrec_interface_set_cfm_fault_status(cfg, NULL, 0);
1583 error = ofproto_port_get_cfm_remote_mpids(iface->port->bridge->ofproto,
1584 iface->ofp_port, &rmps, &n_rmps);
1586 ovsrec_interface_set_cfm_remote_mpids(cfg, (const int64_t *)rmps,
1589 ovsrec_interface_set_cfm_remote_mpids(cfg, NULL, 0);
1594 iface_refresh_stats(struct iface *iface)
1596 #define IFACE_STATS \
1597 IFACE_STAT(rx_packets, "rx_packets") \
1598 IFACE_STAT(tx_packets, "tx_packets") \
1599 IFACE_STAT(rx_bytes, "rx_bytes") \
1600 IFACE_STAT(tx_bytes, "tx_bytes") \
1601 IFACE_STAT(rx_dropped, "rx_dropped") \
1602 IFACE_STAT(tx_dropped, "tx_dropped") \
1603 IFACE_STAT(rx_errors, "rx_errors") \
1604 IFACE_STAT(tx_errors, "tx_errors") \
1605 IFACE_STAT(rx_frame_errors, "rx_frame_err") \
1606 IFACE_STAT(rx_over_errors, "rx_over_err") \
1607 IFACE_STAT(rx_crc_errors, "rx_crc_err") \
1608 IFACE_STAT(collisions, "collisions")
1610 #define IFACE_STAT(MEMBER, NAME) NAME,
1611 static char *keys[] = { IFACE_STATS };
1613 int64_t values[ARRAY_SIZE(keys)];
1616 struct netdev_stats stats;
1618 if (iface_is_synthetic(iface)) {
1622 /* Intentionally ignore return value, since errors will set 'stats' to
1623 * all-1s, and we will deal with that correctly below. */
1624 netdev_get_stats(iface->netdev, &stats);
1626 /* Copy statistics into values[] array. */
1628 #define IFACE_STAT(MEMBER, NAME) values[i++] = stats.MEMBER;
1631 assert(i == ARRAY_SIZE(keys));
1633 ovsrec_interface_set_statistics(iface->cfg, keys, values,
1639 br_refresh_stp_status(struct bridge *br)
1641 struct ofproto *ofproto = br->ofproto;
1642 struct ofproto_stp_status status;
1643 char *keys[3], *values[3];
1646 if (ofproto_get_stp_status(ofproto, &status)) {
1650 if (!status.enabled) {
1651 ovsrec_bridge_set_status(br->cfg, NULL, NULL, 0);
1655 keys[0] = "stp_bridge_id",
1656 values[0] = xasprintf(STP_ID_FMT, STP_ID_ARGS(status.bridge_id));
1657 keys[1] = "stp_designated_root",
1658 values[1] = xasprintf(STP_ID_FMT, STP_ID_ARGS(status.designated_root));
1659 keys[2] = "stp_root_path_cost",
1660 values[2] = xasprintf("%d", status.root_path_cost);
1662 ovsrec_bridge_set_status(br->cfg, keys, values, ARRAY_SIZE(values));
1664 for (i = 0; i < ARRAY_SIZE(values); i++) {
1670 port_refresh_stp_status(struct port *port)
1672 struct ofproto *ofproto = port->bridge->ofproto;
1673 struct iface *iface;
1674 struct ofproto_port_stp_status status;
1676 char *str_values[4];
1677 int64_t int_values[3];
1680 if (port_is_synthetic(port)) {
1684 /* STP doesn't currently support bonds. */
1685 if (!list_is_singleton(&port->ifaces)) {
1686 ovsrec_port_set_status(port->cfg, NULL, NULL, 0);
1690 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
1692 if (ofproto_port_get_stp_status(ofproto, iface->ofp_port, &status)) {
1696 if (!status.enabled) {
1697 ovsrec_port_set_status(port->cfg, NULL, NULL, 0);
1698 ovsrec_port_set_statistics(port->cfg, NULL, NULL, 0);
1702 /* Set Status column. */
1703 keys[0] = "stp_port_id";
1704 str_values[0] = xasprintf(STP_PORT_ID_FMT, status.port_id);
1705 keys[1] = "stp_state";
1706 str_values[1] = xstrdup(stp_state_name(status.state));
1707 keys[2] = "stp_sec_in_state";
1708 str_values[2] = xasprintf("%u", status.sec_in_state);
1709 keys[3] = "stp_role";
1710 str_values[3] = xstrdup(stp_role_name(status.role));
1712 ovsrec_port_set_status(port->cfg, keys, str_values,
1713 ARRAY_SIZE(str_values));
1715 for (i = 0; i < ARRAY_SIZE(str_values); i++) {
1716 free(str_values[i]);
1719 /* Set Statistics column. */
1720 keys[0] = "stp_tx_count";
1721 int_values[0] = status.tx_count;
1722 keys[1] = "stp_rx_count";
1723 int_values[1] = status.rx_count;
1724 keys[2] = "stp_error_count";
1725 int_values[2] = status.error_count;
1727 ovsrec_port_set_statistics(port->cfg, keys, int_values,
1728 ARRAY_SIZE(int_values));
1732 enable_system_stats(const struct ovsrec_open_vswitch *cfg)
1736 /* Use other-config:enable-system-stats by preference. */
1737 enable = get_ovsrec_key_value(cfg->key_other_config,
1738 cfg->value_other_config,
1739 cfg->n_other_config,
1740 "enable-statistics");
1742 return !strcmp(enable, "true");
1745 /* Disable by default. */
1750 refresh_system_stats(const struct ovsrec_open_vswitch *cfg)
1752 struct ovsdb_datum datum;
1756 if (enable_system_stats(cfg)) {
1757 get_system_stats(&stats);
1760 ovsdb_datum_from_shash(&datum, &stats);
1761 ovsdb_idl_txn_write(&cfg->header_, &ovsrec_open_vswitch_col_statistics,
1765 static inline const char *
1766 nx_role_to_str(enum nx_role role)
1771 case NX_ROLE_MASTER:
1776 return "*** INVALID ROLE ***";
1781 refresh_controller_status(void)
1785 const struct ovsrec_controller *cfg;
1789 /* Accumulate status for controllers on all bridges. */
1790 HMAP_FOR_EACH (br, node, &all_bridges) {
1791 ofproto_get_ofproto_controller_info(br->ofproto, &info);
1794 /* Update each controller in the database with current status. */
1795 OVSREC_CONTROLLER_FOR_EACH(cfg, idl) {
1796 struct ofproto_controller_info *cinfo =
1797 shash_find_data(&info, cfg->target);
1800 ovsrec_controller_set_is_connected(cfg, cinfo->is_connected);
1801 ovsrec_controller_set_role(cfg, nx_role_to_str(cinfo->role));
1802 ovsrec_controller_set_status(cfg, (char **) cinfo->pairs.keys,
1803 (char **) cinfo->pairs.values,
1806 ovsrec_controller_set_is_connected(cfg, false);
1807 ovsrec_controller_set_role(cfg, NULL);
1808 ovsrec_controller_set_status(cfg, NULL, NULL, 0);
1812 ofproto_free_ofproto_controller_info(&info);
1816 refresh_cfm_stats(void)
1818 static struct ovsdb_idl_txn *txn = NULL;
1823 txn = ovsdb_idl_txn_create(idl);
1825 HMAP_FOR_EACH (br, node, &all_bridges) {
1826 struct iface *iface;
1828 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
1829 iface_refresh_cfm_stats(iface);
1834 if (ovsdb_idl_txn_commit(txn) != TXN_INCOMPLETE) {
1835 ovsdb_idl_txn_destroy(txn);
1840 /* Performs periodic activity required by bridges that needs to be done with
1841 * the least possible latency.
1843 * It makes sense to call this function a couple of times per poll loop, to
1844 * provide a significant performance boost on some benchmarks with ofprotos
1845 * that use the ofproto-dpif implementation. */
1847 bridge_run_fast(void)
1851 HMAP_FOR_EACH (br, node, &all_bridges) {
1852 ofproto_run_fast(br->ofproto);
1859 const struct ovsrec_open_vswitch *cfg;
1861 bool vlan_splinters_changed;
1862 bool database_changed;
1865 /* (Re)configure if necessary. */
1866 database_changed = ovsdb_idl_run(idl);
1867 if (ovsdb_idl_is_lock_contended(idl)) {
1868 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
1869 struct bridge *br, *next_br;
1871 VLOG_ERR_RL(&rl, "another ovs-vswitchd process is running, "
1872 "disabling this process until it goes away");
1874 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
1878 } else if (!ovsdb_idl_has_lock(idl)) {
1881 cfg = ovsrec_open_vswitch_first(idl);
1883 /* Let each bridge do the work that it needs to do. */
1884 HMAP_FOR_EACH (br, node, &all_bridges) {
1885 ofproto_run(br->ofproto);
1888 /* Re-configure SSL. We do this on every trip through the main loop,
1889 * instead of just when the database changes, because the contents of the
1890 * key and certificate files can change without the database changing.
1892 * We do this before bridge_reconfigure() because that function might
1893 * initiate SSL connections and thus requires SSL to be configured. */
1894 if (cfg && cfg->ssl) {
1895 const struct ovsrec_ssl *ssl = cfg->ssl;
1897 stream_ssl_set_key_and_cert(ssl->private_key, ssl->certificate);
1898 stream_ssl_set_ca_cert_file(ssl->ca_cert, ssl->bootstrap_ca_cert);
1901 /* If VLAN splinters are in use, then we need to reconfigure if VLAN usage
1903 vlan_splinters_changed = false;
1904 if (vlan_splinters_enabled_anywhere) {
1905 HMAP_FOR_EACH (br, node, &all_bridges) {
1906 if (ofproto_has_vlan_usage_changed(br->ofproto)) {
1907 vlan_splinters_changed = true;
1913 if (database_changed || vlan_splinters_changed) {
1915 struct ovsdb_idl_txn *txn = ovsdb_idl_txn_create(idl);
1917 bridge_reconfigure(cfg);
1919 ovsrec_open_vswitch_set_cur_cfg(cfg, cfg->next_cfg);
1920 ovsdb_idl_txn_commit(txn);
1921 ovsdb_idl_txn_destroy(txn); /* XXX */
1923 /* We still need to reconfigure to avoid dangling pointers to
1924 * now-destroyed ovsrec structures inside bridge data. */
1925 static const struct ovsrec_open_vswitch null_cfg;
1927 bridge_reconfigure(&null_cfg);
1931 /* Refresh system and interface stats if necessary. */
1932 if (time_msec() >= stats_timer) {
1934 struct ovsdb_idl_txn *txn;
1936 txn = ovsdb_idl_txn_create(idl);
1937 HMAP_FOR_EACH (br, node, &all_bridges) {
1941 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1942 struct iface *iface;
1944 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1945 iface_refresh_stats(iface);
1946 iface_refresh_status(iface);
1950 HMAP_FOR_EACH (m, hmap_node, &br->mirrors) {
1951 mirror_refresh_stats(m);
1955 refresh_system_stats(cfg);
1956 refresh_controller_status();
1957 ovsdb_idl_txn_commit(txn);
1958 ovsdb_idl_txn_destroy(txn); /* XXX */
1961 stats_timer = time_msec() + STATS_INTERVAL;
1964 if (time_msec() >= db_limiter) {
1965 struct ovsdb_idl_txn *txn;
1967 txn = ovsdb_idl_txn_create(idl);
1968 HMAP_FOR_EACH (br, node, &all_bridges) {
1969 struct iface *iface;
1972 br_refresh_stp_status(br);
1974 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1975 port_refresh_stp_status(port);
1978 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
1979 const char *link_state;
1980 int64_t link_resets;
1983 if (iface_is_synthetic(iface)) {
1987 current = ofproto_port_is_lacp_current(br->ofproto,
1991 ovsrec_interface_set_lacp_current(iface->cfg, &bl, 1);
1993 ovsrec_interface_set_lacp_current(iface->cfg, NULL, 0);
1996 link_state = netdev_get_carrier(iface->netdev) ? "up" : "down";
1997 ovsrec_interface_set_link_state(iface->cfg, link_state);
1999 link_resets = netdev_get_carrier_resets(iface->netdev);
2000 ovsrec_interface_set_link_resets(iface->cfg, &link_resets, 1);
2004 if (ovsdb_idl_txn_commit(txn) != TXN_UNCHANGED) {
2005 db_limiter = time_msec() + DB_LIMIT_INTERVAL;
2007 ovsdb_idl_txn_destroy(txn);
2010 refresh_cfm_stats();
2016 ovsdb_idl_wait(idl);
2017 if (!hmap_is_empty(&all_bridges)) {
2020 HMAP_FOR_EACH (br, node, &all_bridges) {
2021 ofproto_wait(br->ofproto);
2023 poll_timer_wait_until(stats_timer);
2025 if (db_limiter > time_msec()) {
2026 poll_timer_wait_until(db_limiter);
2031 /* QoS unixctl user interface functions. */
2033 struct qos_unixctl_show_cbdata {
2035 struct iface *iface;
2039 qos_unixctl_show_cb(unsigned int queue_id,
2040 const struct shash *details,
2043 struct qos_unixctl_show_cbdata *data = aux;
2044 struct ds *ds = data->ds;
2045 struct iface *iface = data->iface;
2046 struct netdev_queue_stats stats;
2047 struct shash_node *node;
2050 ds_put_cstr(ds, "\n");
2052 ds_put_format(ds, "Queue %u:\n", queue_id);
2054 ds_put_cstr(ds, "Default:\n");
2057 SHASH_FOR_EACH (node, details) {
2058 ds_put_format(ds, "\t%s: %s\n", node->name, (char *)node->data);
2061 error = netdev_get_queue_stats(iface->netdev, queue_id, &stats);
2063 if (stats.tx_packets != UINT64_MAX) {
2064 ds_put_format(ds, "\ttx_packets: %"PRIu64"\n", stats.tx_packets);
2067 if (stats.tx_bytes != UINT64_MAX) {
2068 ds_put_format(ds, "\ttx_bytes: %"PRIu64"\n", stats.tx_bytes);
2071 if (stats.tx_errors != UINT64_MAX) {
2072 ds_put_format(ds, "\ttx_errors: %"PRIu64"\n", stats.tx_errors);
2075 ds_put_format(ds, "\tFailed to get statistics for queue %u: %s",
2076 queue_id, strerror(error));
2081 qos_unixctl_show(struct unixctl_conn *conn, int argc OVS_UNUSED,
2082 const char *argv[], void *aux OVS_UNUSED)
2084 struct ds ds = DS_EMPTY_INITIALIZER;
2085 struct shash sh = SHASH_INITIALIZER(&sh);
2086 struct iface *iface;
2088 struct shash_node *node;
2089 struct qos_unixctl_show_cbdata data;
2092 iface = iface_find(argv[1]);
2094 unixctl_command_reply_error(conn, "no such interface");
2098 netdev_get_qos(iface->netdev, &type, &sh);
2100 if (*type != '\0') {
2101 ds_put_format(&ds, "QoS: %s %s\n", iface->name, type);
2103 SHASH_FOR_EACH (node, &sh) {
2104 ds_put_format(&ds, "%s: %s\n", node->name, (char *)node->data);
2109 error = netdev_dump_queues(iface->netdev, qos_unixctl_show_cb, &data);
2112 ds_put_format(&ds, "failed to dump queues: %s", strerror(error));
2114 unixctl_command_reply(conn, ds_cstr(&ds));
2116 ds_put_format(&ds, "QoS not configured on %s\n", iface->name);
2117 unixctl_command_reply_error(conn, ds_cstr(&ds));
2120 shash_destroy_free_data(&sh);
2124 /* Bridge reconfiguration functions. */
2126 bridge_create(const struct ovsrec_bridge *br_cfg)
2130 assert(!bridge_lookup(br_cfg->name));
2131 br = xzalloc(sizeof *br);
2133 br->name = xstrdup(br_cfg->name);
2134 br->type = xstrdup(ofproto_normalize_type(br_cfg->datapath_type));
2137 /* Derive the default Ethernet address from the bridge's UUID. This should
2138 * be unique and it will be stable between ovs-vswitchd runs. */
2139 memcpy(br->default_ea, &br_cfg->header_.uuid, ETH_ADDR_LEN);
2140 eth_addr_mark_random(br->default_ea);
2142 hmap_init(&br->ports);
2143 hmap_init(&br->ifaces);
2144 hmap_init(&br->iface_by_name);
2145 hmap_init(&br->mirrors);
2147 hmap_insert(&all_bridges, &br->node, hash_string(br->name, 0));
2151 bridge_destroy(struct bridge *br)
2154 struct mirror *mirror, *next_mirror;
2155 struct port *port, *next_port;
2157 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
2160 HMAP_FOR_EACH_SAFE (mirror, next_mirror, hmap_node, &br->mirrors) {
2161 mirror_destroy(mirror);
2163 hmap_remove(&all_bridges, &br->node);
2164 ofproto_destroy(br->ofproto);
2165 hmap_destroy(&br->ifaces);
2166 hmap_destroy(&br->ports);
2167 hmap_destroy(&br->iface_by_name);
2168 hmap_destroy(&br->mirrors);
2175 static struct bridge *
2176 bridge_lookup(const char *name)
2180 HMAP_FOR_EACH_WITH_HASH (br, node, hash_string(name, 0), &all_bridges) {
2181 if (!strcmp(br->name, name)) {
2188 /* Handle requests for a listing of all flows known by the OpenFlow
2189 * stack, including those normally hidden. */
2191 bridge_unixctl_dump_flows(struct unixctl_conn *conn, int argc OVS_UNUSED,
2192 const char *argv[], void *aux OVS_UNUSED)
2197 br = bridge_lookup(argv[1]);
2199 unixctl_command_reply_error(conn, "Unknown bridge");
2204 ofproto_get_all_flows(br->ofproto, &results);
2206 unixctl_command_reply(conn, ds_cstr(&results));
2207 ds_destroy(&results);
2210 /* "bridge/reconnect [BRIDGE]": makes BRIDGE drop all of its controller
2211 * connections and reconnect. If BRIDGE is not specified, then all bridges
2212 * drop their controller connections and reconnect. */
2214 bridge_unixctl_reconnect(struct unixctl_conn *conn, int argc,
2215 const char *argv[], void *aux OVS_UNUSED)
2219 br = bridge_lookup(argv[1]);
2221 unixctl_command_reply_error(conn, "Unknown bridge");
2224 ofproto_reconnect_controllers(br->ofproto);
2226 HMAP_FOR_EACH (br, node, &all_bridges) {
2227 ofproto_reconnect_controllers(br->ofproto);
2230 unixctl_command_reply(conn, NULL);
2234 bridge_get_controllers(const struct bridge *br,
2235 struct ovsrec_controller ***controllersp)
2237 struct ovsrec_controller **controllers;
2238 size_t n_controllers;
2240 controllers = br->cfg->controller;
2241 n_controllers = br->cfg->n_controller;
2243 if (n_controllers == 1 && !strcmp(controllers[0]->target, "none")) {
2249 *controllersp = controllers;
2251 return n_controllers;
2254 /* Adds and deletes "struct port"s and "struct iface"s under 'br' to match
2255 * those configured in 'br->cfg'. */
2257 bridge_add_del_ports(struct bridge *br,
2258 const unsigned long int *splinter_vlans)
2260 struct port *port, *next;
2261 struct shash_node *node;
2262 struct shash new_ports;
2265 /* Collect new ports. */
2266 shash_init(&new_ports);
2267 for (i = 0; i < br->cfg->n_ports; i++) {
2268 const char *name = br->cfg->ports[i]->name;
2269 if (!shash_add_once(&new_ports, name, br->cfg->ports[i])) {
2270 VLOG_WARN("bridge %s: %s specified twice as bridge port",
2274 if (bridge_get_controllers(br, NULL)
2275 && !shash_find(&new_ports, br->name)) {
2276 VLOG_WARN("bridge %s: no port named %s, synthesizing one",
2277 br->name, br->name);
2279 br->synth_local_port.interfaces = &br->synth_local_ifacep;
2280 br->synth_local_port.n_interfaces = 1;
2281 br->synth_local_port.name = br->name;
2283 br->synth_local_iface.name = br->name;
2284 br->synth_local_iface.type = "internal";
2286 br->synth_local_ifacep = &br->synth_local_iface;
2288 shash_add(&new_ports, br->name, &br->synth_local_port);
2291 if (splinter_vlans) {
2292 add_vlan_splinter_ports(br, splinter_vlans, &new_ports);
2295 /* Get rid of deleted ports.
2296 * Get rid of deleted interfaces on ports that still exist. */
2297 HMAP_FOR_EACH_SAFE (port, next, hmap_node, &br->ports) {
2298 port->cfg = shash_find_data(&new_ports, port->name);
2302 port_del_ifaces(port);
2306 /* Create new ports.
2307 * Add new interfaces to existing ports. */
2308 SHASH_FOR_EACH (node, &new_ports) {
2309 struct port *port = port_lookup(br, node->name);
2311 struct ovsrec_port *cfg = node->data;
2312 port = port_create(br, cfg);
2314 port_add_ifaces(port);
2315 if (list_is_empty(&port->ifaces)) {
2316 VLOG_WARN("bridge %s: port %s has no interfaces, dropping",
2317 br->name, port->name);
2321 shash_destroy(&new_ports);
2324 /* Initializes 'oc' appropriately as a management service controller for
2327 * The caller must free oc->target when it is no longer needed. */
2329 bridge_ofproto_controller_for_mgmt(const struct bridge *br,
2330 struct ofproto_controller *oc)
2332 oc->target = xasprintf("punix:%s/%s.mgmt", ovs_rundir(), br->name);
2333 oc->max_backoff = 0;
2334 oc->probe_interval = 60;
2335 oc->band = OFPROTO_OUT_OF_BAND;
2337 oc->burst_limit = 0;
2338 oc->enable_async_msgs = true;
2341 /* Converts ovsrec_controller 'c' into an ofproto_controller in 'oc'. */
2343 bridge_ofproto_controller_from_ovsrec(const struct ovsrec_controller *c,
2344 struct ofproto_controller *oc)
2346 oc->target = c->target;
2347 oc->max_backoff = c->max_backoff ? *c->max_backoff / 1000 : 8;
2348 oc->probe_interval = c->inactivity_probe ? *c->inactivity_probe / 1000 : 5;
2349 oc->band = (!c->connection_mode || !strcmp(c->connection_mode, "in-band")
2350 ? OFPROTO_IN_BAND : OFPROTO_OUT_OF_BAND);
2351 oc->rate_limit = c->controller_rate_limit ? *c->controller_rate_limit : 0;
2352 oc->burst_limit = (c->controller_burst_limit
2353 ? *c->controller_burst_limit : 0);
2354 oc->enable_async_msgs = (!c->enable_async_messages
2355 || *c->enable_async_messages);
2358 /* Configures the IP stack for 'br''s local interface properly according to the
2359 * configuration in 'c'. */
2361 bridge_configure_local_iface_netdev(struct bridge *br,
2362 struct ovsrec_controller *c)
2364 struct netdev *netdev;
2365 struct in_addr mask, gateway;
2367 struct iface *local_iface;
2370 /* If there's no local interface or no IP address, give up. */
2371 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
2372 if (!local_iface || !c->local_ip || !inet_aton(c->local_ip, &ip)) {
2376 /* Bring up the local interface. */
2377 netdev = local_iface->netdev;
2378 netdev_turn_flags_on(netdev, NETDEV_UP, true);
2380 /* Configure the IP address and netmask. */
2381 if (!c->local_netmask
2382 || !inet_aton(c->local_netmask, &mask)
2384 mask.s_addr = guess_netmask(ip.s_addr);
2386 if (!netdev_set_in4(netdev, ip, mask)) {
2387 VLOG_INFO("bridge %s: configured IP address "IP_FMT", netmask "IP_FMT,
2388 br->name, IP_ARGS(&ip.s_addr), IP_ARGS(&mask.s_addr));
2391 /* Configure the default gateway. */
2392 if (c->local_gateway
2393 && inet_aton(c->local_gateway, &gateway)
2394 && gateway.s_addr) {
2395 if (!netdev_add_router(netdev, gateway)) {
2396 VLOG_INFO("bridge %s: configured gateway "IP_FMT,
2397 br->name, IP_ARGS(&gateway.s_addr));
2402 /* Returns true if 'a' and 'b' are the same except that any number of slashes
2403 * in either string are treated as equal to any number of slashes in the other,
2404 * e.g. "x///y" is equal to "x/y". */
2406 equal_pathnames(const char *a, const char *b)
2410 a += strspn(a, "/");
2411 b += strspn(b, "/");
2412 } else if (*a == '\0') {
2423 bridge_configure_remotes(struct bridge *br,
2424 const struct sockaddr_in *managers, size_t n_managers)
2426 const char *disable_ib_str, *queue_id_str;
2427 bool disable_in_band = false;
2430 struct ovsrec_controller **controllers;
2431 size_t n_controllers;
2433 enum ofproto_fail_mode fail_mode;
2435 struct ofproto_controller *ocs;
2439 /* Check if we should disable in-band control on this bridge. */
2440 disable_ib_str = bridge_get_other_config(br->cfg, "disable-in-band");
2441 if (disable_ib_str && !strcmp(disable_ib_str, "true")) {
2442 disable_in_band = true;
2445 /* Set OpenFlow queue ID for in-band control. */
2446 queue_id_str = bridge_get_other_config(br->cfg, "in-band-queue");
2447 queue_id = queue_id_str ? strtol(queue_id_str, NULL, 10) : -1;
2448 ofproto_set_in_band_queue(br->ofproto, queue_id);
2450 if (disable_in_band) {
2451 ofproto_set_extra_in_band_remotes(br->ofproto, NULL, 0);
2453 ofproto_set_extra_in_band_remotes(br->ofproto, managers, n_managers);
2456 n_controllers = bridge_get_controllers(br, &controllers);
2458 ocs = xmalloc((n_controllers + 1) * sizeof *ocs);
2461 bridge_ofproto_controller_for_mgmt(br, &ocs[n_ocs++]);
2462 for (i = 0; i < n_controllers; i++) {
2463 struct ovsrec_controller *c = controllers[i];
2465 if (!strncmp(c->target, "punix:", 6)
2466 || !strncmp(c->target, "unix:", 5)) {
2467 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2470 whitelist = xasprintf("unix:%s/%s.controller",
2471 ovs_rundir(), br->name);
2472 if (!equal_pathnames(c->target, whitelist)) {
2473 /* Prevent remote ovsdb-server users from accessing arbitrary
2474 * Unix domain sockets and overwriting arbitrary local
2476 VLOG_ERR_RL(&rl, "bridge %s: Not adding Unix domain socket "
2477 "controller \"%s\" due to possibility for remote "
2478 "exploit. Instead, specify whitelisted \"%s\" or "
2479 "connect to \"unix:%s/%s.mgmt\" (which is always "
2480 "available without special configuration).",
2481 br->name, c->target, whitelist,
2482 ovs_rundir(), br->name);
2490 bridge_configure_local_iface_netdev(br, c);
2491 bridge_ofproto_controller_from_ovsrec(c, &ocs[n_ocs]);
2492 if (disable_in_band) {
2493 ocs[n_ocs].band = OFPROTO_OUT_OF_BAND;
2498 ofproto_set_controllers(br->ofproto, ocs, n_ocs);
2499 free(ocs[0].target); /* From bridge_ofproto_controller_for_mgmt(). */
2502 /* Set the fail-mode. */
2503 fail_mode = !br->cfg->fail_mode
2504 || !strcmp(br->cfg->fail_mode, "standalone")
2505 ? OFPROTO_FAIL_STANDALONE
2506 : OFPROTO_FAIL_SECURE;
2507 ofproto_set_fail_mode(br->ofproto, fail_mode);
2509 /* Configure OpenFlow controller connection snooping. */
2510 if (!ofproto_has_snoops(br->ofproto)) {
2514 sset_add_and_free(&snoops, xasprintf("punix:%s/%s.snoop",
2515 ovs_rundir(), br->name));
2516 ofproto_set_snoops(br->ofproto, &snoops);
2517 sset_destroy(&snoops);
2522 bridge_configure_tables(struct bridge *br)
2524 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2528 n_tables = ofproto_get_n_tables(br->ofproto);
2530 for (i = 0; i < n_tables; i++) {
2531 struct ofproto_table_settings s;
2534 s.max_flows = UINT_MAX;
2538 if (j < br->cfg->n_flow_tables && i == br->cfg->key_flow_tables[j]) {
2539 struct ovsrec_flow_table *cfg = br->cfg->value_flow_tables[j++];
2542 if (cfg->n_flow_limit && *cfg->flow_limit < UINT_MAX) {
2543 s.max_flows = *cfg->flow_limit;
2545 if (cfg->overflow_policy
2546 && !strcmp(cfg->overflow_policy, "evict")) {
2549 s.groups = xmalloc(cfg->n_groups * sizeof *s.groups);
2550 for (k = 0; k < cfg->n_groups; k++) {
2551 const char *string = cfg->groups[k];
2554 msg = mf_parse_subfield__(&s.groups[k], &string);
2556 VLOG_WARN_RL(&rl, "bridge %s table %d: error parsing "
2557 "'groups' (%s)", br->name, i, msg);
2559 } else if (*string) {
2560 VLOG_WARN_RL(&rl, "bridge %s table %d: 'groups' "
2561 "element '%s' contains trailing garbage",
2562 br->name, i, cfg->groups[k]);
2570 ofproto_configure_table(br->ofproto, i, &s);
2574 for (; j < br->cfg->n_flow_tables; j++) {
2575 VLOG_WARN_RL(&rl, "bridge %s: ignoring configuration for flow table "
2576 "%"PRId64" not supported by this datapath", br->name,
2577 br->cfg->key_flow_tables[j]);
2581 /* Port functions. */
2583 static struct port *
2584 port_create(struct bridge *br, const struct ovsrec_port *cfg)
2588 port = xzalloc(sizeof *port);
2590 port->name = xstrdup(cfg->name);
2592 list_init(&port->ifaces);
2594 hmap_insert(&br->ports, &port->hmap_node, hash_string(port->name, 0));
2596 VLOG_INFO("created port %s on bridge %s", port->name, br->name);
2602 get_port_other_config(const struct ovsrec_port *port, const char *key,
2603 const char *default_value)
2607 value = get_ovsrec_key_value(port->key_other_config,
2608 port->value_other_config,
2609 port->n_other_config, key);
2610 return value ? value : default_value;
2614 get_interface_other_config(const struct ovsrec_interface *iface,
2615 const char *key, const char *default_value)
2619 value = get_ovsrec_key_value(iface->key_other_config,
2620 iface->value_other_config,
2621 iface->n_other_config, key);
2622 return value ? value : default_value;
2625 /* Deletes interfaces from 'port' that are no longer configured for it. */
2627 port_del_ifaces(struct port *port)
2629 struct iface *iface, *next;
2630 struct sset new_ifaces;
2633 /* Collect list of new interfaces. */
2634 sset_init(&new_ifaces);
2635 for (i = 0; i < port->cfg->n_interfaces; i++) {
2636 const char *name = port->cfg->interfaces[i]->name;
2637 const char *type = port->cfg->interfaces[i]->name;
2638 if (strcmp(type, "null")) {
2639 sset_add(&new_ifaces, name);
2643 /* Get rid of deleted interfaces. */
2644 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2645 if (!sset_contains(&new_ifaces, iface->name)) {
2646 iface_destroy(iface);
2650 sset_destroy(&new_ifaces);
2653 /* Adds new interfaces to 'port' and updates 'type' and 'cfg' members of
2656 port_add_ifaces(struct port *port)
2658 struct shash new_ifaces;
2659 struct shash_node *node;
2662 /* Collect new ifaces. */
2663 shash_init(&new_ifaces);
2664 for (i = 0; i < port->cfg->n_interfaces; i++) {
2665 const struct ovsrec_interface *cfg = port->cfg->interfaces[i];
2666 if (strcmp(cfg->type, "null")
2667 && !shash_add_once(&new_ifaces, cfg->name, cfg)) {
2668 VLOG_WARN("port %s: %s specified twice as port interface",
2669 port->name, cfg->name);
2670 iface_clear_db_record(cfg);
2674 /* Create new interfaces.
2675 * Update interface types and 'cfg' members. */
2676 SHASH_FOR_EACH (node, &new_ifaces) {
2677 const struct ovsrec_interface *cfg = node->data;
2678 const char *iface_name = node->name;
2679 struct iface *iface;
2681 iface = iface_lookup(port->bridge, iface_name);
2683 iface = iface_create(port, cfg);
2688 /* Determine interface type. The local port always has type
2689 * "internal". Other ports take their type from the database and
2690 * default to "system" if none is specified. */
2691 iface->type = (!strcmp(iface_name, port->bridge->name) ? "internal"
2692 : cfg->type[0] ? cfg->type
2695 shash_destroy(&new_ifaces);
2699 port_destroy(struct port *port)
2702 struct bridge *br = port->bridge;
2703 struct iface *iface, *next;
2706 ofproto_bundle_unregister(br->ofproto, port);
2709 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2710 iface_destroy(iface);
2713 hmap_remove(&br->ports, &port->hmap_node);
2715 VLOG_INFO("destroyed port %s on bridge %s", port->name, br->name);
2722 static struct port *
2723 port_lookup(const struct bridge *br, const char *name)
2727 HMAP_FOR_EACH_WITH_HASH (port, hmap_node, hash_string(name, 0),
2729 if (!strcmp(port->name, name)) {
2737 enable_lacp(struct port *port, bool *activep)
2739 if (!port->cfg->lacp) {
2740 /* XXX when LACP implementation has been sufficiently tested, enable by
2741 * default and make active on bonded ports. */
2743 } else if (!strcmp(port->cfg->lacp, "off")) {
2745 } else if (!strcmp(port->cfg->lacp, "active")) {
2748 } else if (!strcmp(port->cfg->lacp, "passive")) {
2752 VLOG_WARN("port %s: unknown LACP mode %s",
2753 port->name, port->cfg->lacp);
2758 static struct lacp_settings *
2759 port_configure_lacp(struct port *port, struct lacp_settings *s)
2761 const char *lacp_time, *system_id;
2762 long long int custom_time;
2765 if (!enable_lacp(port, &s->active)) {
2769 s->name = port->name;
2771 system_id = get_port_other_config(port->cfg, "lacp-system-id", NULL);
2773 if (sscanf(system_id, ETH_ADDR_SCAN_FMT,
2774 ETH_ADDR_SCAN_ARGS(s->id)) != ETH_ADDR_SCAN_COUNT) {
2775 VLOG_WARN("port %s: LACP system ID (%s) must be an Ethernet"
2776 " address.", port->name, system_id);
2780 memcpy(s->id, port->bridge->ea, ETH_ADDR_LEN);
2783 if (eth_addr_is_zero(s->id)) {
2784 VLOG_WARN("port %s: Invalid zero LACP system ID.", port->name);
2788 /* Prefer bondable links if unspecified. */
2789 priority = atoi(get_port_other_config(port->cfg, "lacp-system-priority",
2791 s->priority = (priority > 0 && priority <= UINT16_MAX
2793 : UINT16_MAX - !list_is_short(&port->ifaces));
2795 s->heartbeat = !strcmp(get_port_other_config(port->cfg,
2799 lacp_time = get_port_other_config(port->cfg, "lacp-time", "slow");
2800 custom_time = atoi(lacp_time);
2801 if (!strcmp(lacp_time, "fast")) {
2802 s->lacp_time = LACP_TIME_FAST;
2803 } else if (!strcmp(lacp_time, "slow")) {
2804 s->lacp_time = LACP_TIME_SLOW;
2805 } else if (custom_time > 0) {
2806 s->lacp_time = LACP_TIME_CUSTOM;
2807 s->custom_time = custom_time;
2809 s->lacp_time = LACP_TIME_SLOW;
2816 iface_configure_lacp(struct iface *iface, struct lacp_slave_settings *s)
2818 int priority, portid, key;
2820 portid = atoi(get_interface_other_config(iface->cfg, "lacp-port-id", "0"));
2821 priority = atoi(get_interface_other_config(iface->cfg,
2822 "lacp-port-priority", "0"));
2823 key = atoi(get_interface_other_config(iface->cfg, "lacp-aggregation-key",
2826 if (portid <= 0 || portid > UINT16_MAX) {
2827 portid = iface->ofp_port;
2830 if (priority <= 0 || priority > UINT16_MAX) {
2831 priority = UINT16_MAX;
2834 if (key < 0 || key > UINT16_MAX) {
2838 s->name = iface->name;
2840 s->priority = priority;
2845 port_configure_bond(struct port *port, struct bond_settings *s,
2846 uint32_t *bond_stable_ids)
2848 const char *detect_s;
2849 struct iface *iface;
2850 int miimon_interval;
2853 s->name = port->name;
2855 if (port->cfg->bond_mode) {
2856 if (!bond_mode_from_string(&s->balance, port->cfg->bond_mode)) {
2857 VLOG_WARN("port %s: unknown bond_mode %s, defaulting to %s",
2858 port->name, port->cfg->bond_mode,
2859 bond_mode_to_string(s->balance));
2862 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
2864 /* XXX: Post version 1.5.*, the default bond_mode changed from SLB to
2865 * active-backup. At some point we should remove this warning. */
2866 VLOG_WARN_RL(&rl, "port %s: Using the default bond_mode %s. Note that"
2867 " in previous versions, the default bond_mode was"
2868 " balance-slb", port->name,
2869 bond_mode_to_string(s->balance));
2871 if (s->balance == BM_SLB && port->bridge->cfg->n_flood_vlans) {
2872 VLOG_WARN("port %s: SLB bonds are incompatible with flood_vlans, "
2873 "please use another bond type or disable flood_vlans",
2877 miimon_interval = atoi(get_port_other_config(port->cfg,
2878 "bond-miimon-interval", "0"));
2879 if (miimon_interval <= 0) {
2880 miimon_interval = 200;
2883 detect_s = get_port_other_config(port->cfg, "bond-detect-mode", "carrier");
2884 if (!strcmp(detect_s, "carrier")) {
2885 miimon_interval = 0;
2886 } else if (strcmp(detect_s, "miimon")) {
2887 VLOG_WARN("port %s: unsupported bond-detect-mode %s, "
2888 "defaulting to carrier", port->name, detect_s);
2889 miimon_interval = 0;
2892 s->up_delay = MAX(0, port->cfg->bond_updelay);
2893 s->down_delay = MAX(0, port->cfg->bond_downdelay);
2894 s->basis = atoi(get_port_other_config(port->cfg, "bond-hash-basis", "0"));
2895 s->rebalance_interval = atoi(
2896 get_port_other_config(port->cfg, "bond-rebalance-interval", "10000"));
2897 if (s->rebalance_interval && s->rebalance_interval < 1000) {
2898 s->rebalance_interval = 1000;
2901 s->fake_iface = port->cfg->bond_fake_iface;
2904 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
2905 long long stable_id;
2907 stable_id = atoll(get_interface_other_config(iface->cfg,
2908 "bond-stable-id", "0"));
2909 if (stable_id <= 0 || stable_id >= UINT32_MAX) {
2910 stable_id = iface->ofp_port;
2912 bond_stable_ids[i++] = stable_id;
2914 netdev_set_miimon_interval(iface->netdev, miimon_interval);
2918 /* Returns true if 'port' is synthetic, that is, if we constructed it locally
2919 * instead of obtaining it from the database. */
2921 port_is_synthetic(const struct port *port)
2923 return ovsdb_idl_row_is_synthetic(&port->cfg->header_);
2926 /* Interface functions. */
2928 static struct iface *
2929 iface_create(struct port *port, const struct ovsrec_interface *if_cfg)
2931 struct bridge *br = port->bridge;
2932 struct iface *iface;
2933 char *name = if_cfg->name;
2935 iface = xzalloc(sizeof *iface);
2937 iface->name = xstrdup(name);
2938 iface->ofp_port = -1;
2939 iface->tag = tag_create_random();
2940 iface->netdev = NULL;
2941 iface->cfg = if_cfg;
2943 hmap_insert(&br->iface_by_name, &iface->name_node, hash_string(name, 0));
2945 list_push_back(&port->ifaces, &iface->port_elem);
2947 VLOG_DBG("attached network device %s to port %s", iface->name, port->name);
2953 iface_destroy(struct iface *iface)
2956 struct port *port = iface->port;
2957 struct bridge *br = port->bridge;
2959 if (br->ofproto && iface->ofp_port >= 0) {
2960 ofproto_port_unregister(br->ofproto, iface->ofp_port);
2963 if (iface->ofp_port >= 0) {
2964 hmap_remove(&br->ifaces, &iface->ofp_port_node);
2967 list_remove(&iface->port_elem);
2968 hmap_remove(&br->iface_by_name, &iface->name_node);
2970 netdev_close(iface->netdev);
2977 static struct iface *
2978 iface_lookup(const struct bridge *br, const char *name)
2980 struct iface *iface;
2982 HMAP_FOR_EACH_WITH_HASH (iface, name_node, hash_string(name, 0),
2983 &br->iface_by_name) {
2984 if (!strcmp(iface->name, name)) {
2992 static struct iface *
2993 iface_find(const char *name)
2995 const struct bridge *br;
2997 HMAP_FOR_EACH (br, node, &all_bridges) {
2998 struct iface *iface = iface_lookup(br, name);
3007 static struct iface *
3008 iface_from_ofp_port(const struct bridge *br, uint16_t ofp_port)
3010 struct iface *iface;
3012 HMAP_FOR_EACH_IN_BUCKET (iface, ofp_port_node,
3013 hash_int(ofp_port, 0), &br->ifaces) {
3014 if (iface->ofp_port == ofp_port) {
3021 /* Set Ethernet address of 'iface', if one is specified in the configuration
3024 iface_set_mac(struct iface *iface)
3026 uint8_t ea[ETH_ADDR_LEN];
3028 if (!strcmp(iface->type, "internal")
3029 && iface->cfg->mac && eth_addr_from_string(iface->cfg->mac, ea)) {
3030 if (iface->ofp_port == OFPP_LOCAL) {
3031 VLOG_ERR("interface %s: ignoring mac in Interface record "
3032 "(use Bridge record to set local port's mac)",
3034 } else if (eth_addr_is_multicast(ea)) {
3035 VLOG_ERR("interface %s: cannot set MAC to multicast address",
3038 int error = netdev_set_etheraddr(iface->netdev, ea);
3040 VLOG_ERR("interface %s: setting MAC failed (%s)",
3041 iface->name, strerror(error));
3047 /* Sets the ofport column of 'if_cfg' to 'ofport'. */
3049 iface_set_ofport(const struct ovsrec_interface *if_cfg, int64_t ofport)
3051 if (if_cfg && !ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
3052 ovsrec_interface_set_ofport(if_cfg, &ofport, 1);
3056 /* Clears all of the fields in 'if_cfg' that indicate interface status, and
3057 * sets the "ofport" field to -1.
3059 * This is appropriate when 'if_cfg''s interface cannot be created or is
3060 * otherwise invalid. */
3062 iface_clear_db_record(const struct ovsrec_interface *if_cfg)
3064 if (!ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
3065 iface_set_ofport(if_cfg, -1);
3066 ovsrec_interface_set_status(if_cfg, NULL, NULL, 0);
3067 ovsrec_interface_set_admin_state(if_cfg, NULL);
3068 ovsrec_interface_set_duplex(if_cfg, NULL);
3069 ovsrec_interface_set_link_speed(if_cfg, NULL, 0);
3070 ovsrec_interface_set_link_state(if_cfg, NULL);
3071 ovsrec_interface_set_mtu(if_cfg, NULL, 0);
3072 ovsrec_interface_set_cfm_fault(if_cfg, NULL, 0);
3073 ovsrec_interface_set_cfm_fault_status(if_cfg, NULL, 0);
3074 ovsrec_interface_set_cfm_remote_mpids(if_cfg, NULL, 0);
3075 ovsrec_interface_set_lacp_current(if_cfg, NULL, 0);
3076 ovsrec_interface_set_statistics(if_cfg, NULL, NULL, 0);
3080 /* Adds the 'n' key-value pairs in 'keys' in 'values' to 'shash'.
3082 * The value strings in '*shash' are taken directly from values[], not copied,
3083 * so the caller should not modify or free them. */
3085 shash_from_ovs_idl_map(char **keys, char **values, size_t n,
3086 struct shash *shash)
3091 for (i = 0; i < n; i++) {
3092 shash_add(shash, keys[i], values[i]);
3096 /* Creates 'keys' and 'values' arrays from 'shash'.
3098 * Sets 'keys' and 'values' to heap allocated arrays representing the key-value
3099 * pairs in 'shash'. The caller takes ownership of 'keys' and 'values'. They
3100 * are populated with with strings taken directly from 'shash' and thus have
3101 * the same ownership of the key-value pairs in shash.
3104 shash_to_ovs_idl_map(struct shash *shash,
3105 char ***keys, char ***values, size_t *n)
3109 struct shash_node *sn;
3111 count = shash_count(shash);
3113 k = xmalloc(count * sizeof *k);
3114 v = xmalloc(count * sizeof *v);
3117 SHASH_FOR_EACH(sn, shash) {
3128 struct iface_delete_queues_cbdata {
3129 struct netdev *netdev;
3130 const struct ovsdb_datum *queues;
3134 queue_ids_include(const struct ovsdb_datum *queues, int64_t target)
3136 union ovsdb_atom atom;
3138 atom.integer = target;
3139 return ovsdb_datum_find_key(queues, &atom, OVSDB_TYPE_INTEGER) != UINT_MAX;
3143 iface_delete_queues(unsigned int queue_id,
3144 const struct shash *details OVS_UNUSED, void *cbdata_)
3146 struct iface_delete_queues_cbdata *cbdata = cbdata_;
3148 if (!queue_ids_include(cbdata->queues, queue_id)) {
3149 netdev_delete_queue(cbdata->netdev, queue_id);
3154 iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos)
3156 struct ofpbuf queues_buf;
3158 ofpbuf_init(&queues_buf, 0);
3160 if (!qos || qos->type[0] == '\0' || qos->n_queues < 1) {
3161 netdev_set_qos(iface->netdev, NULL, NULL);
3163 struct iface_delete_queues_cbdata cbdata;
3164 struct shash details;
3168 /* Configure top-level Qos for 'iface'. */
3169 shash_from_ovs_idl_map(qos->key_other_config, qos->value_other_config,
3170 qos->n_other_config, &details);
3171 netdev_set_qos(iface->netdev, qos->type, &details);
3172 shash_destroy(&details);
3174 /* Deconfigure queues that were deleted. */
3175 cbdata.netdev = iface->netdev;
3176 cbdata.queues = ovsrec_qos_get_queues(qos, OVSDB_TYPE_INTEGER,
3178 netdev_dump_queues(iface->netdev, iface_delete_queues, &cbdata);
3180 /* Configure queues for 'iface'. */
3182 for (i = 0; i < qos->n_queues; i++) {
3183 const struct ovsrec_queue *queue = qos->value_queues[i];
3184 unsigned int queue_id = qos->key_queues[i];
3186 if (queue_id == 0) {
3190 if (queue->n_dscp == 1) {
3191 struct ofproto_port_queue *port_queue;
3193 port_queue = ofpbuf_put_uninit(&queues_buf,
3194 sizeof *port_queue);
3195 port_queue->queue = queue_id;
3196 port_queue->dscp = queue->dscp[0];
3199 shash_from_ovs_idl_map(queue->key_other_config,
3200 queue->value_other_config,
3201 queue->n_other_config, &details);
3202 netdev_set_queue(iface->netdev, queue_id, &details);
3203 shash_destroy(&details);
3206 shash_init(&details);
3207 netdev_set_queue(iface->netdev, 0, &details);
3208 shash_destroy(&details);
3212 if (iface->ofp_port >= 0) {
3213 const struct ofproto_port_queue *port_queues = queues_buf.data;
3214 size_t n_queues = queues_buf.size / sizeof *port_queues;
3216 ofproto_port_set_queues(iface->port->bridge->ofproto, iface->ofp_port,
3217 port_queues, n_queues);
3220 netdev_set_policing(iface->netdev,
3221 iface->cfg->ingress_policing_rate,
3222 iface->cfg->ingress_policing_burst);
3224 ofpbuf_uninit(&queues_buf);
3228 iface_configure_cfm(struct iface *iface)
3230 const struct ovsrec_interface *cfg = iface->cfg;
3231 const char *extended_str, *opstate_str;
3232 const char *cfm_ccm_vlan;
3233 struct cfm_settings s;
3235 if (!cfg->n_cfm_mpid) {
3236 ofproto_port_clear_cfm(iface->port->bridge->ofproto, iface->ofp_port);
3240 s.mpid = *cfg->cfm_mpid;
3241 s.interval = atoi(get_interface_other_config(iface->cfg, "cfm_interval",
3243 cfm_ccm_vlan = get_interface_other_config(iface->cfg, "cfm_ccm_vlan", "0");
3244 s.ccm_pcp = atoi(get_interface_other_config(iface->cfg, "cfm_ccm_pcp",
3246 if (s.interval <= 0) {
3250 if (!strcasecmp("random", cfm_ccm_vlan)) {
3251 s.ccm_vlan = CFM_RANDOM_VLAN;
3253 s.ccm_vlan = atoi(cfm_ccm_vlan);
3254 if (s.ccm_vlan == CFM_RANDOM_VLAN) {
3259 extended_str = get_interface_other_config(iface->cfg, "cfm_extended",
3261 s.extended = !strcasecmp("true", extended_str);
3263 opstate_str = get_interface_other_config(iface->cfg, "cfm_opstate", "up");
3264 s.opup = !strcasecmp("up", opstate_str);
3266 ofproto_port_set_cfm(iface->port->bridge->ofproto, iface->ofp_port, &s);
3269 /* Returns true if 'iface' is synthetic, that is, if we constructed it locally
3270 * instead of obtaining it from the database. */
3272 iface_is_synthetic(const struct iface *iface)
3274 return ovsdb_idl_row_is_synthetic(&iface->cfg->header_);
3277 /* Port mirroring. */
3279 static struct mirror *
3280 mirror_find_by_uuid(struct bridge *br, const struct uuid *uuid)
3284 HMAP_FOR_EACH_IN_BUCKET (m, hmap_node, uuid_hash(uuid), &br->mirrors) {
3285 if (uuid_equals(uuid, &m->uuid)) {
3293 bridge_configure_mirrors(struct bridge *br)
3295 const struct ovsdb_datum *mc;
3296 unsigned long *flood_vlans;
3297 struct mirror *m, *next;
3300 /* Get rid of deleted mirrors. */
3301 mc = ovsrec_bridge_get_mirrors(br->cfg, OVSDB_TYPE_UUID);
3302 HMAP_FOR_EACH_SAFE (m, next, hmap_node, &br->mirrors) {
3303 union ovsdb_atom atom;
3305 atom.uuid = m->uuid;
3306 if (ovsdb_datum_find_key(mc, &atom, OVSDB_TYPE_UUID) == UINT_MAX) {
3311 /* Add new mirrors and reconfigure existing ones. */
3312 for (i = 0; i < br->cfg->n_mirrors; i++) {
3313 const struct ovsrec_mirror *cfg = br->cfg->mirrors[i];
3314 struct mirror *m = mirror_find_by_uuid(br, &cfg->header_.uuid);
3316 m = mirror_create(br, cfg);
3319 if (!mirror_configure(m)) {
3324 /* Update flooded vlans (for RSPAN). */
3325 flood_vlans = vlan_bitmap_from_array(br->cfg->flood_vlans,
3326 br->cfg->n_flood_vlans);
3327 ofproto_set_flood_vlans(br->ofproto, flood_vlans);
3328 bitmap_free(flood_vlans);
3331 static struct mirror *
3332 mirror_create(struct bridge *br, const struct ovsrec_mirror *cfg)
3336 m = xzalloc(sizeof *m);
3337 m->uuid = cfg->header_.uuid;
3338 hmap_insert(&br->mirrors, &m->hmap_node, uuid_hash(&m->uuid));
3340 m->name = xstrdup(cfg->name);
3346 mirror_destroy(struct mirror *m)
3349 struct bridge *br = m->bridge;
3352 ofproto_mirror_unregister(br->ofproto, m);
3355 hmap_remove(&br->mirrors, &m->hmap_node);
3362 mirror_collect_ports(struct mirror *m,
3363 struct ovsrec_port **in_ports, int n_in_ports,
3364 void ***out_portsp, size_t *n_out_portsp)
3366 void **out_ports = xmalloc(n_in_ports * sizeof *out_ports);
3367 size_t n_out_ports = 0;
3370 for (i = 0; i < n_in_ports; i++) {
3371 const char *name = in_ports[i]->name;
3372 struct port *port = port_lookup(m->bridge, name);
3374 out_ports[n_out_ports++] = port;
3376 VLOG_WARN("bridge %s: mirror %s cannot match on nonexistent "
3377 "port %s", m->bridge->name, m->name, name);
3380 *out_portsp = out_ports;
3381 *n_out_portsp = n_out_ports;
3385 mirror_configure(struct mirror *m)
3387 const struct ovsrec_mirror *cfg = m->cfg;
3388 struct ofproto_mirror_settings s;
3391 if (strcmp(cfg->name, m->name)) {
3393 m->name = xstrdup(cfg->name);
3397 /* Get output port or VLAN. */
3398 if (cfg->output_port) {
3399 s.out_bundle = port_lookup(m->bridge, cfg->output_port->name);
3400 if (!s.out_bundle) {
3401 VLOG_ERR("bridge %s: mirror %s outputs to port not on bridge",
3402 m->bridge->name, m->name);
3405 s.out_vlan = UINT16_MAX;
3407 if (cfg->output_vlan) {
3408 VLOG_ERR("bridge %s: mirror %s specifies both output port and "
3409 "output vlan; ignoring output vlan",
3410 m->bridge->name, m->name);
3412 } else if (cfg->output_vlan) {
3413 /* The database should prevent invalid VLAN values. */
3414 s.out_bundle = NULL;
3415 s.out_vlan = *cfg->output_vlan;
3417 VLOG_ERR("bridge %s: mirror %s does not specify output; ignoring",
3418 m->bridge->name, m->name);
3422 /* Get port selection. */
3423 if (cfg->select_all) {
3424 size_t n_ports = hmap_count(&m->bridge->ports);
3425 void **ports = xmalloc(n_ports * sizeof *ports);
3430 HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) {
3440 /* Get ports, dropping ports that don't exist.
3441 * The IDL ensures that there are no duplicates. */
3442 mirror_collect_ports(m, cfg->select_src_port, cfg->n_select_src_port,
3443 &s.srcs, &s.n_srcs);
3444 mirror_collect_ports(m, cfg->select_dst_port, cfg->n_select_dst_port,
3445 &s.dsts, &s.n_dsts);
3448 /* Get VLAN selection. */
3449 s.src_vlans = vlan_bitmap_from_array(cfg->select_vlan, cfg->n_select_vlan);
3452 ofproto_mirror_register(m->bridge->ofproto, m, &s);
3455 if (s.srcs != s.dsts) {
3464 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
3466 * This is deprecated. It is only for compatibility with broken device drivers
3467 * in old versions of Linux that do not properly support VLANs when VLAN
3468 * devices are not used. When broken device drivers are no longer in
3469 * widespread use, we will delete these interfaces. */
3471 static void **blocks;
3472 static size_t n_blocks, allocated_blocks;
3474 /* Adds 'block' to a list of blocks that have to be freed with free() when the
3475 * VLAN splinters are reconfigured. */
3477 register_block(void *block)
3479 if (n_blocks >= allocated_blocks) {
3480 blocks = x2nrealloc(blocks, &allocated_blocks, sizeof *blocks);
3482 blocks[n_blocks++] = block;
3485 /* Frees all of the blocks registered with register_block(). */
3487 free_registered_blocks(void)
3491 for (i = 0; i < n_blocks; i++) {
3497 /* Returns true if VLAN splinters are enabled on 'iface_cfg', false
3500 vlan_splinters_is_enabled(const struct ovsrec_interface *iface_cfg)
3504 value = get_interface_other_config(iface_cfg, "enable-vlan-splinters", "");
3505 return !strcmp(value, "true");
3508 /* Figures out the set of VLANs that are in use for the purpose of VLAN
3511 * If VLAN splinters are enabled on at least one interface and any VLANs are in
3512 * use, returns a 4096-bit bitmap with a 1-bit for each in-use VLAN (bits 0 and
3513 * 4095 will not be set). The caller is responsible for freeing the bitmap,
3516 * If VLANs splinters are not enabled on any interface or if no VLANs are in
3517 * use, returns NULL.
3519 * Updates 'vlan_splinters_enabled_anywhere'. */
3520 static unsigned long int *
3521 collect_splinter_vlans(const struct ovsrec_open_vswitch *ovs_cfg)
3523 unsigned long int *splinter_vlans;
3524 struct sset splinter_ifaces;
3525 const char *real_dev_name;
3526 struct shash *real_devs;
3527 struct shash_node *node;
3531 /* Free space allocated for synthesized ports and interfaces, since we're
3532 * in the process of reconstructing all of them. */
3533 free_registered_blocks();
3535 splinter_vlans = bitmap_allocate(4096);
3536 sset_init(&splinter_ifaces);
3537 vlan_splinters_enabled_anywhere = false;
3538 for (i = 0; i < ovs_cfg->n_bridges; i++) {
3539 struct ovsrec_bridge *br_cfg = ovs_cfg->bridges[i];
3542 for (j = 0; j < br_cfg->n_ports; j++) {
3543 struct ovsrec_port *port_cfg = br_cfg->ports[j];
3546 for (k = 0; k < port_cfg->n_interfaces; k++) {
3547 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[k];
3549 if (vlan_splinters_is_enabled(iface_cfg)) {
3550 vlan_splinters_enabled_anywhere = true;
3551 sset_add(&splinter_ifaces, iface_cfg->name);
3552 vlan_bitmap_from_array__(port_cfg->trunks,
3558 if (port_cfg->tag && *port_cfg->tag > 0 && *port_cfg->tag < 4095) {
3559 bitmap_set1(splinter_vlans, *port_cfg->tag);
3564 if (!vlan_splinters_enabled_anywhere) {
3565 free(splinter_vlans);
3566 sset_destroy(&splinter_ifaces);
3570 HMAP_FOR_EACH (br, node, &all_bridges) {
3572 ofproto_get_vlan_usage(br->ofproto, splinter_vlans);
3576 /* Don't allow VLANs 0 or 4095 to be splintered. VLAN 0 should appear on
3577 * the real device. VLAN 4095 is reserved and Linux doesn't allow a VLAN
3578 * device to be created for it. */
3579 bitmap_set0(splinter_vlans, 0);
3580 bitmap_set0(splinter_vlans, 4095);
3582 /* Delete all VLAN devices that we don't need. */
3584 real_devs = vlandev_get_real_devs();
3585 SHASH_FOR_EACH (node, real_devs) {
3586 const struct vlan_real_dev *real_dev = node->data;
3587 const struct vlan_dev *vlan_dev;
3588 bool real_dev_has_splinters;
3590 real_dev_has_splinters = sset_contains(&splinter_ifaces,
3592 HMAP_FOR_EACH (vlan_dev, hmap_node, &real_dev->vlan_devs) {
3593 if (!real_dev_has_splinters
3594 || !bitmap_is_set(splinter_vlans, vlan_dev->vid)) {
3595 struct netdev *netdev;
3597 if (!netdev_open(vlan_dev->name, "system", &netdev)) {
3598 if (!netdev_get_in4(netdev, NULL, NULL) ||
3599 !netdev_get_in6(netdev, NULL)) {
3600 vlandev_del(vlan_dev->name);
3602 /* It has an IP address configured, so we don't own
3603 * it. Don't delete it. */
3605 netdev_close(netdev);
3612 /* Add all VLAN devices that we need. */
3613 SSET_FOR_EACH (real_dev_name, &splinter_ifaces) {
3616 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
3617 if (!vlandev_get_name(real_dev_name, vid)) {
3618 vlandev_add(real_dev_name, vid);
3625 sset_destroy(&splinter_ifaces);
3627 if (bitmap_scan(splinter_vlans, 0, 4096) >= 4096) {
3628 free(splinter_vlans);
3631 return splinter_vlans;
3634 /* Pushes the configure of VLAN splinter port 'port' (e.g. eth0.9) down to
3637 configure_splinter_port(struct port *port)
3639 struct ofproto *ofproto = port->bridge->ofproto;
3640 uint16_t realdev_ofp_port;
3641 const char *realdev_name;
3642 struct iface *vlandev, *realdev;
3644 ofproto_bundle_unregister(port->bridge->ofproto, port);
3646 vlandev = CONTAINER_OF(list_front(&port->ifaces), struct iface,
3649 realdev_name = get_port_other_config(port->cfg, "realdev", NULL);
3650 realdev = iface_lookup(port->bridge, realdev_name);
3651 realdev_ofp_port = realdev ? realdev->ofp_port : 0;
3653 ofproto_port_set_realdev(ofproto, vlandev->ofp_port, realdev_ofp_port,
3657 static struct ovsrec_port *
3658 synthesize_splinter_port(const char *real_dev_name,
3659 const char *vlan_dev_name, int vid)
3661 struct ovsrec_interface *iface;
3662 struct ovsrec_port *port;
3664 iface = xzalloc(sizeof *iface);
3665 iface->name = xstrdup(vlan_dev_name);
3666 iface->type = "system";
3668 port = xzalloc(sizeof *port);
3669 port->interfaces = xmemdup(&iface, sizeof iface);
3670 port->n_interfaces = 1;
3671 port->name = xstrdup(vlan_dev_name);
3672 port->vlan_mode = "splinter";
3673 port->tag = xmalloc(sizeof *port->tag);
3675 port->key_other_config = xmalloc(sizeof *port->key_other_config);
3676 port->key_other_config[0] = "realdev";
3677 port->value_other_config = xmalloc(sizeof *port->value_other_config);
3678 port->value_other_config[0] = xstrdup(real_dev_name);
3679 port->n_other_config = 1;
3681 register_block(iface);
3682 register_block(iface->name);
3683 register_block(port);
3684 register_block(port->interfaces);
3685 register_block(port->name);
3686 register_block(port->tag);
3687 register_block(port->key_other_config);
3688 register_block(port->value_other_config);
3689 register_block(port->value_other_config[0]);
3694 /* For each interface with 'br' that has VLAN splinters enabled, adds a
3695 * corresponding ovsrec_port to 'ports' for each splinter VLAN marked with a
3696 * 1-bit in the 'splinter_vlans' bitmap. */
3698 add_vlan_splinter_ports(struct bridge *br,
3699 const unsigned long int *splinter_vlans,
3700 struct shash *ports)
3704 /* We iterate through 'br->cfg->ports' instead of 'ports' here because
3705 * we're modifying 'ports'. */
3706 for (i = 0; i < br->cfg->n_ports; i++) {
3707 const char *name = br->cfg->ports[i]->name;
3708 struct ovsrec_port *port_cfg = shash_find_data(ports, name);
3711 for (j = 0; j < port_cfg->n_interfaces; j++) {
3712 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[j];
3714 if (vlan_splinters_is_enabled(iface_cfg)) {
3715 const char *real_dev_name;
3718 real_dev_name = iface_cfg->name;
3719 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
3720 const char *vlan_dev_name;
3722 vlan_dev_name = vlandev_get_name(real_dev_name, vid);
3724 && !shash_find(ports, vlan_dev_name)) {
3725 shash_add(ports, vlan_dev_name,
3726 synthesize_splinter_port(
3727 real_dev_name, vlan_dev_name, vid));
3736 mirror_refresh_stats(struct mirror *m)
3738 struct ofproto *ofproto = m->bridge->ofproto;
3739 uint64_t tx_packets, tx_bytes;
3742 size_t stat_cnt = 0;
3744 if (ofproto_mirror_get_stats(ofproto, m, &tx_packets, &tx_bytes)) {
3745 ovsrec_mirror_set_statistics(m->cfg, NULL, NULL, 0);
3749 if (tx_packets != UINT64_MAX) {
3750 keys[stat_cnt] = "tx_packets";
3751 values[stat_cnt] = tx_packets;
3754 if (tx_bytes != UINT64_MAX) {
3755 keys[stat_cnt] = "tx_bytes";
3756 values[stat_cnt] = tx_bytes;
3760 ovsrec_mirror_set_statistics(m->cfg, keys, values, stat_cnt);