1 /* Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira Networks
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
28 #include "dynamic-string.h"
35 #include "mac-learning.h"
37 #include "ofp-print.h"
39 #include "ofproto/ofproto.h"
40 #include "poll-loop.h"
43 #include "socket-util.h"
44 #include "stream-ssl.h"
46 #include "system-stats.h"
51 #include "vswitchd/vswitch-idl.h"
52 #include "xenserver.h"
54 #include "sflow_api.h"
55 #include "vlan-bitmap.h"
57 VLOG_DEFINE_THIS_MODULE(bridge);
59 COVERAGE_DEFINE(bridge_reconfigure);
62 /* These members are always valid. */
63 struct list port_elem; /* Element in struct port's "ifaces" list. */
64 struct hmap_node name_node; /* In struct bridge's "iface_by_name" hmap. */
65 struct port *port; /* Containing port. */
66 char *name; /* Host network device name. */
67 tag_type tag; /* Tag associated with this interface. */
69 /* These members are valid only after bridge_reconfigure() causes them to
71 struct hmap_node ofp_port_node; /* In struct bridge's "ifaces" hmap. */
72 int ofp_port; /* OpenFlow port number, -1 if unknown. */
73 struct netdev *netdev; /* Network device. */
74 const char *type; /* Usually same as cfg->type. */
75 const struct ovsrec_interface *cfg;
79 struct uuid uuid; /* UUID of this "mirror" record in database. */
80 struct hmap_node hmap_node; /* In struct bridge's "mirrors" hmap. */
81 struct bridge *bridge;
83 const struct ovsrec_mirror *cfg;
87 struct bridge *bridge;
88 struct hmap_node hmap_node; /* Element in struct bridge's "ports" hmap. */
91 const struct ovsrec_port *cfg;
93 /* An ordinary bridge port has 1 interface.
94 * A bridge port for bonding has at least 2 interfaces. */
95 struct list ifaces; /* List of "struct iface"s. */
99 struct hmap_node node; /* In 'all_bridges'. */
100 char *name; /* User-specified arbitrary name. */
101 char *type; /* Datapath type. */
102 uint8_t ea[ETH_ADDR_LEN]; /* Bridge Ethernet Address. */
103 uint8_t default_ea[ETH_ADDR_LEN]; /* Default MAC. */
104 const struct ovsrec_bridge *cfg;
106 /* OpenFlow switch processing. */
107 struct ofproto *ofproto; /* OpenFlow switch. */
110 struct hmap ports; /* "struct port"s indexed by name. */
111 struct hmap ifaces; /* "struct iface"s indexed by ofp_port. */
112 struct hmap iface_by_name; /* "struct iface"s indexed by name. */
114 /* Port mirroring. */
115 struct hmap mirrors; /* "struct mirror" indexed by UUID. */
117 /* Synthetic local port if necessary. */
118 struct ovsrec_port synth_local_port;
119 struct ovsrec_interface synth_local_iface;
120 struct ovsrec_interface *synth_local_ifacep;
123 /* All bridges, indexed by name. */
124 static struct hmap all_bridges = HMAP_INITIALIZER(&all_bridges);
126 /* OVSDB IDL used to obtain configuration. */
127 static struct ovsdb_idl *idl;
129 /* Each time this timer expires, the bridge fetches systems and interface
130 * statistics and pushes them into the database. */
131 #define STATS_INTERVAL (5 * 1000) /* In milliseconds. */
132 static long long int stats_timer = LLONG_MIN;
134 /* Stores the time after which rate limited statistics may be written to the
135 * database. Only updated when changes to the database require rate limiting.
137 #define DB_LIMIT_INTERVAL (1 * 1000) /* In milliseconds. */
138 static long long int db_limiter = LLONG_MIN;
140 static void add_del_bridges(const struct ovsrec_open_vswitch *);
141 static void bridge_del_ofprotos(void);
142 static bool bridge_add_ofprotos(struct bridge *);
143 static void bridge_create(const struct ovsrec_bridge *);
144 static void bridge_destroy(struct bridge *);
145 static struct bridge *bridge_lookup(const char *name);
146 static unixctl_cb_func bridge_unixctl_dump_flows;
147 static unixctl_cb_func bridge_unixctl_reconnect;
148 static size_t bridge_get_controllers(const struct bridge *br,
149 struct ovsrec_controller ***controllersp);
150 static void bridge_add_del_ports(struct bridge *,
151 const unsigned long int *splinter_vlans);
152 static void bridge_add_ofproto_ports(struct bridge *);
153 static void bridge_del_ofproto_ports(struct bridge *);
154 static void bridge_refresh_ofp_port(struct bridge *);
155 static void bridge_configure_datapath_id(struct bridge *);
156 static void bridge_configure_flow_eviction_threshold(struct bridge *);
157 static void bridge_configure_netflow(struct bridge *);
158 static void bridge_configure_forward_bpdu(struct bridge *);
159 static void bridge_configure_mac_idle_time(struct bridge *);
160 static void bridge_configure_sflow(struct bridge *, int *sflow_bridge_number);
161 static void bridge_configure_stp(struct bridge *);
162 static void bridge_configure_remotes(struct bridge *,
163 const struct sockaddr_in *managers,
165 static void bridge_pick_local_hw_addr(struct bridge *,
166 uint8_t ea[ETH_ADDR_LEN],
167 struct iface **hw_addr_iface);
168 static uint64_t bridge_pick_datapath_id(struct bridge *,
169 const uint8_t bridge_ea[ETH_ADDR_LEN],
170 struct iface *hw_addr_iface);
171 static const char *bridge_get_other_config(const struct ovsrec_bridge *,
173 static const char *get_port_other_config(const struct ovsrec_port *,
175 const char *default_value);
176 static uint64_t dpid_from_hash(const void *, size_t nbytes);
177 static bool bridge_has_bond_fake_iface(const struct bridge *,
179 static bool port_is_bond_fake_iface(const struct port *);
181 static unixctl_cb_func qos_unixctl_show;
183 static struct port *port_create(struct bridge *, const struct ovsrec_port *);
184 static void port_add_ifaces(struct port *);
185 static void port_del_ifaces(struct port *);
186 static void port_destroy(struct port *);
187 static struct port *port_lookup(const struct bridge *, const char *name);
188 static void port_configure(struct port *);
189 static struct lacp_settings *port_configure_lacp(struct port *,
190 struct lacp_settings *);
191 static void port_configure_bond(struct port *, struct bond_settings *,
192 uint32_t *bond_stable_ids);
193 static bool port_is_synthetic(const struct port *);
195 static void bridge_configure_mirrors(struct bridge *);
196 static struct mirror *mirror_create(struct bridge *,
197 const struct ovsrec_mirror *);
198 static void mirror_destroy(struct mirror *);
199 static bool mirror_configure(struct mirror *);
200 static void mirror_refresh_stats(struct mirror *);
202 static void iface_configure_lacp(struct iface *, struct lacp_slave_settings *);
203 static struct iface *iface_create(struct port *port,
204 const struct ovsrec_interface *if_cfg);
205 static void iface_destroy(struct iface *);
206 static struct iface *iface_lookup(const struct bridge *, const char *name);
207 static struct iface *iface_find(const char *name);
208 static struct iface *iface_from_ofp_port(const struct bridge *,
210 static void iface_set_mac(struct iface *);
211 static void iface_set_ofport(const struct ovsrec_interface *, int64_t ofport);
212 static void iface_clear_db_record(const struct ovsrec_interface *if_cfg);
213 static void iface_configure_qos(struct iface *, const struct ovsrec_qos *);
214 static void iface_configure_cfm(struct iface *);
215 static void iface_refresh_cfm_stats(struct iface *);
216 static void iface_refresh_stats(struct iface *);
217 static void iface_refresh_status(struct iface *);
218 static bool iface_is_synthetic(const struct iface *);
219 static const char *get_interface_other_config(const struct ovsrec_interface *,
221 const char *default_value);
223 static void shash_from_ovs_idl_map(char **keys, char **values, size_t n,
225 static void shash_to_ovs_idl_map(struct shash *,
226 char ***keys, char ***values, size_t *n);
228 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
230 * This is deprecated. It is only for compatibility with broken device drivers
231 * in old versions of Linux that do not properly support VLANs when VLAN
232 * devices are not used. When broken device drivers are no longer in
233 * widespread use, we will delete these interfaces. */
235 /* True if VLAN splinters are enabled on any interface, false otherwise.*/
236 static bool vlan_splinters_enabled_anywhere;
238 static bool vlan_splinters_is_enabled(const struct ovsrec_interface *);
239 static unsigned long int *collect_splinter_vlans(
240 const struct ovsrec_open_vswitch *);
241 static void configure_splinter_port(struct port *);
242 static void add_vlan_splinter_ports(struct bridge *,
243 const unsigned long int *splinter_vlans,
244 struct shash *ports);
246 /* Public functions. */
248 /* Initializes the bridge module, configuring it to obtain its configuration
249 * from an OVSDB server accessed over 'remote', which should be a string in a
250 * form acceptable to ovsdb_idl_create(). */
252 bridge_init(const char *remote)
254 /* Create connection to database. */
255 idl = ovsdb_idl_create(remote, &ovsrec_idl_class, true);
256 ovsdb_idl_set_lock(idl, "ovs_vswitchd");
258 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_cur_cfg);
259 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_statistics);
260 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_external_ids);
261 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_ovs_version);
262 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_db_version);
263 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_type);
264 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_version);
266 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_datapath_id);
267 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_status);
268 ovsdb_idl_omit(idl, &ovsrec_bridge_col_external_ids);
270 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_status);
271 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_statistics);
272 ovsdb_idl_omit(idl, &ovsrec_port_col_external_ids);
273 ovsdb_idl_omit(idl, &ovsrec_port_col_fake_bridge);
275 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_admin_state);
276 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_duplex);
277 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_speed);
278 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_state);
279 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_resets);
280 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mtu);
281 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ofport);
282 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_statistics);
283 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_status);
284 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault);
285 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_remote_mpids);
286 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_lacp_current);
287 ovsdb_idl_omit(idl, &ovsrec_interface_col_external_ids);
289 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_is_connected);
290 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_role);
291 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_status);
292 ovsdb_idl_omit(idl, &ovsrec_controller_col_external_ids);
294 ovsdb_idl_omit(idl, &ovsrec_qos_col_external_ids);
296 ovsdb_idl_omit(idl, &ovsrec_queue_col_external_ids);
298 ovsdb_idl_omit(idl, &ovsrec_mirror_col_external_ids);
299 ovsdb_idl_omit_alert(idl, &ovsrec_mirror_col_statistics);
301 ovsdb_idl_omit(idl, &ovsrec_netflow_col_external_ids);
303 ovsdb_idl_omit(idl, &ovsrec_sflow_col_external_ids);
305 ovsdb_idl_omit(idl, &ovsrec_manager_col_external_ids);
306 ovsdb_idl_omit(idl, &ovsrec_manager_col_inactivity_probe);
307 ovsdb_idl_omit(idl, &ovsrec_manager_col_is_connected);
308 ovsdb_idl_omit(idl, &ovsrec_manager_col_max_backoff);
309 ovsdb_idl_omit(idl, &ovsrec_manager_col_status);
311 ovsdb_idl_omit(idl, &ovsrec_ssl_col_external_ids);
313 /* Register unixctl commands. */
314 unixctl_command_register("qos/show", "interface", qos_unixctl_show, NULL);
315 unixctl_command_register("bridge/dump-flows", "bridge",
316 bridge_unixctl_dump_flows, NULL);
317 unixctl_command_register("bridge/reconnect", "[bridge]",
318 bridge_unixctl_reconnect, NULL);
327 struct bridge *br, *next_br;
329 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
332 ovsdb_idl_destroy(idl);
335 /* Looks at the list of managers in 'ovs_cfg' and extracts their remote IP
336 * addresses and ports into '*managersp' and '*n_managersp'. The caller is
337 * responsible for freeing '*managersp' (with free()).
339 * You may be asking yourself "why does ovs-vswitchd care?", because
340 * ovsdb-server is responsible for connecting to the managers, and ovs-vswitchd
341 * should not be and in fact is not directly involved in that. But
342 * ovs-vswitchd needs to make sure that ovsdb-server can reach the managers, so
343 * it has to tell in-band control where the managers are to enable that.
344 * (Thus, only managers connected in-band are collected.)
347 collect_in_band_managers(const struct ovsrec_open_vswitch *ovs_cfg,
348 struct sockaddr_in **managersp, size_t *n_managersp)
350 struct sockaddr_in *managers = NULL;
351 size_t n_managers = 0;
355 /* Collect all of the potential targets from the "targets" columns of the
356 * rows pointed to by "manager_options", excluding any that are
359 for (i = 0; i < ovs_cfg->n_manager_options; i++) {
360 struct ovsrec_manager *m = ovs_cfg->manager_options[i];
362 if (m->connection_mode && !strcmp(m->connection_mode, "out-of-band")) {
363 sset_find_and_delete(&targets, m->target);
365 sset_add(&targets, m->target);
369 /* Now extract the targets' IP addresses. */
370 if (!sset_is_empty(&targets)) {
373 managers = xmalloc(sset_count(&targets) * sizeof *managers);
374 SSET_FOR_EACH (target, &targets) {
375 struct sockaddr_in *sin = &managers[n_managers];
377 if ((!strncmp(target, "tcp:", 4)
378 && inet_parse_active(target + 4, JSONRPC_TCP_PORT, sin)) ||
379 (!strncmp(target, "ssl:", 4)
380 && inet_parse_active(target + 4, JSONRPC_SSL_PORT, sin))) {
385 sset_destroy(&targets);
387 *managersp = managers;
388 *n_managersp = n_managers;
392 bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
394 unsigned long int *splinter_vlans;
395 struct sockaddr_in *managers;
396 struct bridge *br, *next;
397 int sflow_bridge_number;
400 COVERAGE_INC(bridge_reconfigure);
402 /* Create and destroy "struct bridge"s, "struct port"s, and "struct
403 * iface"s according to 'ovs_cfg', with only very minimal configuration
406 * This is mostly an update to bridge data structures. Very little is
407 * pushed down to ofproto or lower layers. */
408 add_del_bridges(ovs_cfg);
409 splinter_vlans = collect_splinter_vlans(ovs_cfg);
410 HMAP_FOR_EACH (br, node, &all_bridges) {
411 bridge_add_del_ports(br, splinter_vlans);
413 free(splinter_vlans);
415 /* Delete all datapaths and datapath ports that are no longer configured.
417 * The kernel will reject any attempt to add a given port to a datapath if
418 * that port already belongs to a different datapath, so we must do all
419 * port deletions before any port additions. A datapath always has a
420 * "local port" so we must delete not-configured datapaths too. */
421 bridge_del_ofprotos();
422 HMAP_FOR_EACH (br, node, &all_bridges) {
424 bridge_del_ofproto_ports(br);
428 /* Create datapaths and datapath ports that are missing.
430 * After this is done, we have our final set of bridges, ports, and
431 * interfaces. Every "struct bridge" has an ofproto, every "struct port"
432 * has at least one iface, every "struct iface" has a valid ofp_port and
434 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
435 if (!br->ofproto && !bridge_add_ofprotos(br)) {
439 HMAP_FOR_EACH (br, node, &all_bridges) {
440 bridge_refresh_ofp_port(br);
441 bridge_add_ofproto_ports(br);
444 /* Complete the configuration. */
445 sflow_bridge_number = 0;
446 collect_in_band_managers(ovs_cfg, &managers, &n_managers);
447 HMAP_FOR_EACH (br, node, &all_bridges) {
450 /* We need the datapath ID early to allow LACP ports to use it as the
451 * default system ID. */
452 bridge_configure_datapath_id(br);
454 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
457 port_configure(port);
459 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
460 iface_configure_cfm(iface);
461 iface_configure_qos(iface, port->cfg->qos);
462 iface_set_mac(iface);
465 bridge_configure_mirrors(br);
466 bridge_configure_flow_eviction_threshold(br);
467 bridge_configure_forward_bpdu(br);
468 bridge_configure_mac_idle_time(br);
469 bridge_configure_remotes(br, managers, n_managers);
470 bridge_configure_netflow(br);
471 bridge_configure_sflow(br, &sflow_bridge_number);
472 bridge_configure_stp(br);
476 /* ovs-vswitchd has completed initialization, so allow the process that
477 * forked us to exit successfully. */
478 daemonize_complete();
481 /* Iterate over all ofprotos and delete any of them that do not have a
482 * configured bridge or that are the wrong type. */
484 bridge_del_ofprotos(void)
492 ofproto_enumerate_types(&types);
493 SSET_FOR_EACH (type, &types) {
496 ofproto_enumerate_names(type, &names);
497 SSET_FOR_EACH (name, &names) {
498 struct bridge *br = bridge_lookup(name);
499 if (!br || strcmp(type, br->type)) {
500 ofproto_delete(name, type);
504 sset_destroy(&names);
505 sset_destroy(&types);
509 bridge_add_ofprotos(struct bridge *br)
511 int error = ofproto_create(br->name, br->type, &br->ofproto);
513 VLOG_ERR("failed to create bridge %s: %s", br->name, strerror(error));
520 port_configure(struct port *port)
522 const struct ovsrec_port *cfg = port->cfg;
523 struct bond_settings bond_settings;
524 struct lacp_settings lacp_settings;
525 struct ofproto_bundle_settings s;
528 if (cfg->vlan_mode && !strcmp(cfg->vlan_mode, "splinter")) {
529 configure_splinter_port(port);
538 s.slaves = xmalloc(list_size(&port->ifaces) * sizeof *s.slaves);
539 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
540 s.slaves[s.n_slaves++] = iface->ofp_port;
545 if (cfg->tag && *cfg->tag >= 0 && *cfg->tag <= 4095) {
549 /* Get VLAN trunks. */
552 s.trunks = vlan_bitmap_from_array(cfg->trunks, cfg->n_trunks);
556 if (cfg->vlan_mode) {
557 if (!strcmp(cfg->vlan_mode, "access")) {
558 s.vlan_mode = PORT_VLAN_ACCESS;
559 } else if (!strcmp(cfg->vlan_mode, "trunk")) {
560 s.vlan_mode = PORT_VLAN_TRUNK;
561 } else if (!strcmp(cfg->vlan_mode, "native-tagged")) {
562 s.vlan_mode = PORT_VLAN_NATIVE_TAGGED;
563 } else if (!strcmp(cfg->vlan_mode, "native-untagged")) {
564 s.vlan_mode = PORT_VLAN_NATIVE_UNTAGGED;
566 /* This "can't happen" because ovsdb-server should prevent it. */
567 VLOG_ERR("unknown VLAN mode %s", cfg->vlan_mode);
568 s.vlan_mode = PORT_VLAN_TRUNK;
572 s.vlan_mode = PORT_VLAN_ACCESS;
574 VLOG_ERR("port %s: ignoring trunks in favor of implicit vlan",
578 s.vlan_mode = PORT_VLAN_TRUNK;
581 s.use_priority_tags = !strcmp("true", get_port_other_config(
582 cfg, "priority-tags", ""));
584 /* Get LACP settings. */
585 s.lacp = port_configure_lacp(port, &lacp_settings);
589 s.lacp_slaves = xmalloc(s.n_slaves * sizeof *s.lacp_slaves);
590 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
591 iface_configure_lacp(iface, &s.lacp_slaves[i++]);
594 s.lacp_slaves = NULL;
597 /* Get bond settings. */
598 if (s.n_slaves > 1) {
599 s.bond = &bond_settings;
600 s.bond_stable_ids = xmalloc(s.n_slaves * sizeof *s.bond_stable_ids);
601 port_configure_bond(port, &bond_settings, s.bond_stable_ids);
604 s.bond_stable_ids = NULL;
606 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
607 netdev_set_miimon_interval(iface->netdev, 0);
612 ofproto_bundle_register(port->bridge->ofproto, port, &s);
618 free(s.bond_stable_ids);
621 /* Pick local port hardware address and datapath ID for 'br'. */
623 bridge_configure_datapath_id(struct bridge *br)
625 uint8_t ea[ETH_ADDR_LEN];
627 struct iface *local_iface;
628 struct iface *hw_addr_iface;
631 bridge_pick_local_hw_addr(br, ea, &hw_addr_iface);
632 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
634 int error = netdev_set_etheraddr(local_iface->netdev, ea);
636 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
637 VLOG_ERR_RL(&rl, "bridge %s: failed to set bridge "
638 "Ethernet address: %s",
639 br->name, strerror(error));
642 memcpy(br->ea, ea, ETH_ADDR_LEN);
644 dpid = bridge_pick_datapath_id(br, ea, hw_addr_iface);
645 ofproto_set_datapath_id(br->ofproto, dpid);
647 dpid_string = xasprintf("%016"PRIx64, dpid);
648 ovsrec_bridge_set_datapath_id(br->cfg, dpid_string);
652 /* Set NetFlow configuration on 'br'. */
654 bridge_configure_netflow(struct bridge *br)
656 struct ovsrec_netflow *cfg = br->cfg->netflow;
657 struct netflow_options opts;
660 ofproto_set_netflow(br->ofproto, NULL);
664 memset(&opts, 0, sizeof opts);
666 /* Get default NetFlow configuration from datapath.
667 * Apply overrides from 'cfg'. */
668 ofproto_get_netflow_ids(br->ofproto, &opts.engine_type, &opts.engine_id);
669 if (cfg->engine_type) {
670 opts.engine_type = *cfg->engine_type;
672 if (cfg->engine_id) {
673 opts.engine_id = *cfg->engine_id;
676 /* Configure active timeout interval. */
677 opts.active_timeout = cfg->active_timeout;
678 if (!opts.active_timeout) {
679 opts.active_timeout = -1;
680 } else if (opts.active_timeout < 0) {
681 VLOG_WARN("bridge %s: active timeout interval set to negative "
682 "value, using default instead (%d seconds)", br->name,
683 NF_ACTIVE_TIMEOUT_DEFAULT);
684 opts.active_timeout = -1;
687 /* Add engine ID to interface number to disambiguate bridgs? */
688 opts.add_id_to_iface = cfg->add_id_to_interface;
689 if (opts.add_id_to_iface) {
690 if (opts.engine_id > 0x7f) {
691 VLOG_WARN("bridge %s: NetFlow port mangling may conflict with "
692 "another vswitch, choose an engine id less than 128",
695 if (hmap_count(&br->ports) > 508) {
696 VLOG_WARN("bridge %s: NetFlow port mangling will conflict with "
697 "another port when more than 508 ports are used",
703 sset_init(&opts.collectors);
704 sset_add_array(&opts.collectors, cfg->targets, cfg->n_targets);
707 if (ofproto_set_netflow(br->ofproto, &opts)) {
708 VLOG_ERR("bridge %s: problem setting netflow collectors", br->name);
710 sset_destroy(&opts.collectors);
713 /* Set sFlow configuration on 'br'. */
715 bridge_configure_sflow(struct bridge *br, int *sflow_bridge_number)
717 const struct ovsrec_sflow *cfg = br->cfg->sflow;
718 struct ovsrec_controller **controllers;
719 struct ofproto_sflow_options oso;
720 size_t n_controllers;
724 ofproto_set_sflow(br->ofproto, NULL);
728 memset(&oso, 0, sizeof oso);
730 sset_init(&oso.targets);
731 sset_add_array(&oso.targets, cfg->targets, cfg->n_targets);
733 oso.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
735 oso.sampling_rate = *cfg->sampling;
738 oso.polling_interval = SFL_DEFAULT_POLLING_INTERVAL;
740 oso.polling_interval = *cfg->polling;
743 oso.header_len = SFL_DEFAULT_HEADER_SIZE;
745 oso.header_len = *cfg->header;
748 oso.sub_id = (*sflow_bridge_number)++;
749 oso.agent_device = cfg->agent;
751 oso.control_ip = NULL;
752 n_controllers = bridge_get_controllers(br, &controllers);
753 for (i = 0; i < n_controllers; i++) {
754 if (controllers[i]->local_ip) {
755 oso.control_ip = controllers[i]->local_ip;
759 ofproto_set_sflow(br->ofproto, &oso);
761 sset_destroy(&oso.targets);
765 port_configure_stp(const struct ofproto *ofproto, struct port *port,
766 struct ofproto_port_stp_settings *port_s,
767 int *port_num_counter, unsigned long *port_num_bitmap)
769 const char *config_str;
772 config_str = get_port_other_config(port->cfg, "stp-enable", NULL);
773 if (config_str && !strcmp(config_str, "false")) {
774 port_s->enable = false;
777 port_s->enable = true;
780 /* STP over bonds is not supported. */
781 if (!list_is_singleton(&port->ifaces)) {
782 VLOG_ERR("port %s: cannot enable STP on bonds, disabling",
784 port_s->enable = false;
788 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
790 /* Internal ports shouldn't participate in spanning tree, so
792 if (!strcmp(iface->type, "internal")) {
793 VLOG_DBG("port %s: disable STP on internal ports", port->name);
794 port_s->enable = false;
798 /* STP on mirror output ports is not supported. */
799 if (ofproto_is_mirror_output_bundle(ofproto, port)) {
800 VLOG_DBG("port %s: disable STP on mirror ports", port->name);
801 port_s->enable = false;
805 config_str = get_port_other_config(port->cfg, "stp-port-num", NULL);
807 unsigned long int port_num = strtoul(config_str, NULL, 0);
808 int port_idx = port_num - 1;
810 if (port_num < 1 || port_num > STP_MAX_PORTS) {
811 VLOG_ERR("port %s: invalid stp-port-num", port->name);
812 port_s->enable = false;
816 if (bitmap_is_set(port_num_bitmap, port_idx)) {
817 VLOG_ERR("port %s: duplicate stp-port-num %lu, disabling",
818 port->name, port_num);
819 port_s->enable = false;
822 bitmap_set1(port_num_bitmap, port_idx);
823 port_s->port_num = port_idx;
825 if (*port_num_counter > STP_MAX_PORTS) {
826 VLOG_ERR("port %s: too many STP ports, disabling", port->name);
827 port_s->enable = false;
831 port_s->port_num = (*port_num_counter)++;
834 config_str = get_port_other_config(port->cfg, "stp-path-cost", NULL);
836 port_s->path_cost = strtoul(config_str, NULL, 10);
840 if (netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL)) {
841 /* Couldn't get speed, so assume 100Mb/s. */
842 port_s->path_cost = 19;
846 mbps = netdev_features_to_bps(current) / 1000000;
847 port_s->path_cost = stp_convert_speed_to_cost(mbps);
851 config_str = get_port_other_config(port->cfg, "stp-port-priority", NULL);
853 port_s->priority = strtoul(config_str, NULL, 0);
855 port_s->priority = STP_DEFAULT_PORT_PRIORITY;
859 /* Set spanning tree configuration on 'br'. */
861 bridge_configure_stp(struct bridge *br)
863 if (!br->cfg->stp_enable) {
864 ofproto_set_stp(br->ofproto, NULL);
866 struct ofproto_stp_settings br_s;
867 const char *config_str;
869 int port_num_counter;
870 unsigned long *port_num_bitmap;
872 config_str = bridge_get_other_config(br->cfg, "stp-system-id");
874 uint8_t ea[ETH_ADDR_LEN];
876 if (eth_addr_from_string(config_str, ea)) {
877 br_s.system_id = eth_addr_to_uint64(ea);
879 br_s.system_id = eth_addr_to_uint64(br->ea);
880 VLOG_ERR("bridge %s: invalid stp-system-id, defaulting "
881 "to "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(br->ea));
884 br_s.system_id = eth_addr_to_uint64(br->ea);
887 config_str = bridge_get_other_config(br->cfg, "stp-priority");
889 br_s.priority = strtoul(config_str, NULL, 0);
891 br_s.priority = STP_DEFAULT_BRIDGE_PRIORITY;
894 config_str = bridge_get_other_config(br->cfg, "stp-hello-time");
896 br_s.hello_time = strtoul(config_str, NULL, 10) * 1000;
898 br_s.hello_time = STP_DEFAULT_HELLO_TIME;
901 config_str = bridge_get_other_config(br->cfg, "stp-max-age");
903 br_s.max_age = strtoul(config_str, NULL, 10) * 1000;
905 br_s.max_age = STP_DEFAULT_MAX_AGE;
908 config_str = bridge_get_other_config(br->cfg, "stp-forward-delay");
910 br_s.fwd_delay = strtoul(config_str, NULL, 10) * 1000;
912 br_s.fwd_delay = STP_DEFAULT_FWD_DELAY;
915 /* Configure STP on the bridge. */
916 if (ofproto_set_stp(br->ofproto, &br_s)) {
917 VLOG_ERR("bridge %s: could not enable STP", br->name);
921 /* Users must either set the port number with the "stp-port-num"
922 * configuration on all ports or none. If manual configuration
923 * is not done, then we allocate them sequentially. */
924 port_num_counter = 0;
925 port_num_bitmap = bitmap_allocate(STP_MAX_PORTS);
926 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
927 struct ofproto_port_stp_settings port_s;
930 port_configure_stp(br->ofproto, port, &port_s,
931 &port_num_counter, port_num_bitmap);
933 /* As bonds are not supported, just apply configuration to
935 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
936 if (ofproto_port_set_stp(br->ofproto, iface->ofp_port,
938 VLOG_ERR("port %s: could not enable STP", port->name);
944 if (bitmap_scan(port_num_bitmap, 0, STP_MAX_PORTS) != STP_MAX_PORTS
945 && port_num_counter) {
946 VLOG_ERR("bridge %s: must manually configure all STP port "
947 "IDs or none, disabling", br->name);
948 ofproto_set_stp(br->ofproto, NULL);
950 bitmap_free(port_num_bitmap);
955 bridge_has_bond_fake_iface(const struct bridge *br, const char *name)
957 const struct port *port = port_lookup(br, name);
958 return port && port_is_bond_fake_iface(port);
962 port_is_bond_fake_iface(const struct port *port)
964 return port->cfg->bond_fake_iface && !list_is_short(&port->ifaces);
968 add_del_bridges(const struct ovsrec_open_vswitch *cfg)
970 struct bridge *br, *next;
974 /* Collect new bridges' names and types. */
976 for (i = 0; i < cfg->n_bridges; i++) {
977 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
978 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
980 if (strchr(br_cfg->name, '/')) {
981 /* Prevent remote ovsdb-server users from accessing arbitrary
982 * directories, e.g. consider a bridge named "../../../etc/". */
983 VLOG_WARN_RL(&rl, "ignoring bridge with invalid name \"%s\"",
985 } else if (!shash_add_once(&new_br, br_cfg->name, br_cfg)) {
986 VLOG_WARN_RL(&rl, "bridge %s specified twice", br_cfg->name);
990 /* Get rid of deleted bridges or those whose types have changed.
991 * Update 'cfg' of bridges that still exist. */
992 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
993 br->cfg = shash_find_data(&new_br, br->name);
994 if (!br->cfg || strcmp(br->type, ofproto_normalize_type(
995 br->cfg->datapath_type))) {
1000 /* Add new bridges. */
1001 for (i = 0; i < cfg->n_bridges; i++) {
1002 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
1003 struct bridge *br = bridge_lookup(br_cfg->name);
1005 bridge_create(br_cfg);
1009 shash_destroy(&new_br);
1012 /* Delete each ofproto port on 'br' that doesn't have a corresponding "struct
1015 * The kernel will reject any attempt to add a given port to a datapath if that
1016 * port already belongs to a different datapath, so we must do all port
1017 * deletions before any port additions. */
1019 bridge_del_ofproto_ports(struct bridge *br)
1021 struct ofproto_port_dump dump;
1022 struct ofproto_port ofproto_port;
1024 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
1025 const char *name = ofproto_port.name;
1026 struct iface *iface;
1030 /* Ignore the local port. We can't change it anyhow. */
1031 if (!strcmp(name, br->name)) {
1035 /* Get the type that 'ofproto_port' should have (ordinarily the
1036 * type of its corresponding iface) or NULL if it should be
1038 iface = iface_lookup(br, name);
1039 type = (iface ? iface->type
1040 : bridge_has_bond_fake_iface(br, name) ? "internal"
1043 /* If it's the wrong type then delete the ofproto port. */
1045 && !strcmp(ofproto_port.type, type)
1046 && (!iface || !iface->netdev
1047 || !strcmp(netdev_get_type(iface->netdev), type))) {
1050 error = ofproto_port_del(br->ofproto, ofproto_port.ofp_port);
1052 VLOG_WARN("bridge %s: failed to remove %s interface (%s)",
1053 br->name, name, strerror(error));
1056 netdev_close(iface->netdev);
1057 iface->netdev = NULL;
1063 iface_set_ofp_port(struct iface *iface, int ofp_port)
1065 struct bridge *br = iface->port->bridge;
1067 assert(iface->ofp_port < 0 && ofp_port >= 0);
1068 iface->ofp_port = ofp_port;
1069 hmap_insert(&br->ifaces, &iface->ofp_port_node, hash_int(ofp_port, 0));
1070 iface_set_ofport(iface->cfg, ofp_port);
1074 bridge_refresh_ofp_port(struct bridge *br)
1076 struct ofproto_port_dump dump;
1077 struct ofproto_port ofproto_port;
1080 /* Clear all the "ofp_port"es. */
1081 hmap_clear(&br->ifaces);
1082 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1083 struct iface *iface;
1085 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1086 iface->ofp_port = -1;
1090 /* Obtain the correct "ofp_port"s from ofproto. */
1091 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
1092 struct iface *iface = iface_lookup(br, ofproto_port.name);
1094 if (iface->ofp_port >= 0) {
1095 VLOG_WARN("bridge %s: interface %s reported twice",
1096 br->name, ofproto_port.name);
1097 } else if (iface_from_ofp_port(br, ofproto_port.ofp_port)) {
1098 VLOG_WARN("bridge %s: interface %"PRIu16" reported twice",
1099 br->name, ofproto_port.ofp_port);
1101 iface_set_ofp_port(iface, ofproto_port.ofp_port);
1107 /* Add an ofproto port for any "struct iface" that doesn't have one.
1108 * Delete any "struct iface" for which this fails.
1109 * Delete any "struct port" that thereby ends up with no ifaces. */
1111 bridge_add_ofproto_ports(struct bridge *br)
1113 struct port *port, *next_port;
1115 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
1116 struct iface *iface, *next_iface;
1117 struct ofproto_port ofproto_port;
1119 LIST_FOR_EACH_SAFE (iface, next_iface, port_elem, &port->ifaces) {
1122 /* Open the netdev. */
1123 if (!iface->netdev) {
1124 error = netdev_open(iface->name, iface->type, &iface->netdev);
1126 VLOG_WARN("could not open network device %s (%s)",
1127 iface->name, strerror(error));
1131 && port->cfg->vlan_mode
1132 && !strcmp(port->cfg->vlan_mode, "splinter")) {
1133 netdev_turn_flags_on(iface->netdev, NETDEV_UP, true);
1139 /* Configure the netdev. */
1140 if (iface->netdev) {
1144 shash_from_ovs_idl_map(iface->cfg->key_options,
1145 iface->cfg->value_options,
1146 iface->cfg->n_options, &args);
1147 error = netdev_set_config(iface->netdev, &args);
1148 shash_destroy(&args);
1151 VLOG_WARN("could not configure network device %s (%s)",
1152 iface->name, strerror(error));
1153 netdev_close(iface->netdev);
1154 iface->netdev = NULL;
1158 /* Add the port, if necessary. */
1159 if (iface->netdev && iface->ofp_port < 0) {
1163 error = ofproto_port_add(br->ofproto, iface->netdev,
1166 iface_set_ofp_port(iface, ofp_port);
1168 netdev_close(iface->netdev);
1169 iface->netdev = NULL;
1173 /* Populate stats columns in new Interface rows. */
1174 if (iface->netdev && !iface->cfg->mtu) {
1175 iface_refresh_stats(iface);
1176 iface_refresh_status(iface);
1179 /* Delete the iface if we failed. */
1180 if (iface->netdev && iface->ofp_port >= 0) {
1181 VLOG_DBG("bridge %s: interface %s is on port %d",
1182 br->name, iface->name, iface->ofp_port);
1184 if (iface->netdev) {
1185 VLOG_ERR("bridge %s: missing %s interface, dropping",
1186 br->name, iface->name);
1188 /* We already reported a related error, don't bother
1189 * duplicating it. */
1191 iface_clear_db_record(iface->cfg);
1192 iface_destroy(iface);
1195 if (list_is_empty(&port->ifaces)) {
1196 VLOG_WARN("%s port has no interfaces, dropping", port->name);
1201 /* Add bond fake iface if necessary. */
1202 if (port_is_bond_fake_iface(port)) {
1203 if (ofproto_port_query_by_name(br->ofproto, port->name,
1205 struct netdev *netdev;
1208 error = netdev_open(port->name, "internal", &netdev);
1210 ofproto_port_add(br->ofproto, netdev, NULL);
1211 netdev_close(netdev);
1213 VLOG_WARN("could not open network device %s (%s)",
1214 port->name, strerror(error));
1217 /* Already exists, nothing to do. */
1218 ofproto_port_destroy(&ofproto_port);
1225 get_ovsrec_key_value(char **keys, char **values, size_t n, const char *key)
1229 for (i = 0; i < n; i++) {
1230 if (!strcmp(keys[i], key)) {
1238 bridge_get_other_config(const struct ovsrec_bridge *br_cfg, const char *key)
1240 return get_ovsrec_key_value(br_cfg->key_other_config,
1241 br_cfg->value_other_config,
1242 br_cfg->n_other_config, key);
1245 /* Set Flow eviction threshold */
1247 bridge_configure_flow_eviction_threshold(struct bridge *br)
1249 const char *threshold_str;
1252 threshold_str = bridge_get_other_config(br->cfg, "flow-eviction-threshold");
1253 if (threshold_str) {
1254 threshold = strtoul(threshold_str, NULL, 10);
1256 threshold = OFPROTO_FLOW_EVICTON_THRESHOLD_DEFAULT;
1258 ofproto_set_flow_eviction_threshold(br->ofproto, threshold);
1261 /* Set forward BPDU option. */
1263 bridge_configure_forward_bpdu(struct bridge *br)
1265 const char *forward_bpdu_str;
1266 bool forward_bpdu = false;
1268 forward_bpdu_str = bridge_get_other_config(br->cfg, "forward-bpdu");
1269 if (forward_bpdu_str && !strcmp(forward_bpdu_str, "true")) {
1270 forward_bpdu = true;
1272 ofproto_set_forward_bpdu(br->ofproto, forward_bpdu);
1275 /* Set MAC aging time for 'br'. */
1277 bridge_configure_mac_idle_time(struct bridge *br)
1279 const char *idle_time_str;
1282 idle_time_str = bridge_get_other_config(br->cfg, "mac-aging-time");
1283 idle_time = (idle_time_str && atoi(idle_time_str)
1284 ? atoi(idle_time_str)
1285 : MAC_ENTRY_DEFAULT_IDLE_TIME);
1286 ofproto_set_mac_idle_time(br->ofproto, idle_time);
1290 bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
1291 struct iface **hw_addr_iface)
1293 struct hmapx mirror_output_ports;
1296 bool found_addr = false;
1300 *hw_addr_iface = NULL;
1302 /* Did the user request a particular MAC? */
1303 hwaddr = bridge_get_other_config(br->cfg, "hwaddr");
1304 if (hwaddr && eth_addr_from_string(hwaddr, ea)) {
1305 if (eth_addr_is_multicast(ea)) {
1306 VLOG_ERR("bridge %s: cannot set MAC address to multicast "
1307 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1308 } else if (eth_addr_is_zero(ea)) {
1309 VLOG_ERR("bridge %s: cannot set MAC address to zero", br->name);
1315 /* Mirror output ports don't participate in picking the local hardware
1316 * address. ofproto can't help us find out whether a given port is a
1317 * mirror output because we haven't configured mirrors yet, so we need to
1318 * accumulate them ourselves. */
1319 hmapx_init(&mirror_output_ports);
1320 for (i = 0; i < br->cfg->n_mirrors; i++) {
1321 struct ovsrec_mirror *m = br->cfg->mirrors[i];
1322 if (m->output_port) {
1323 hmapx_add(&mirror_output_ports, m->output_port);
1327 /* Otherwise choose the minimum non-local MAC address among all of the
1329 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1330 uint8_t iface_ea[ETH_ADDR_LEN];
1331 struct iface *candidate;
1332 struct iface *iface;
1334 /* Mirror output ports don't participate. */
1335 if (hmapx_contains(&mirror_output_ports, port->cfg)) {
1339 /* Choose the MAC address to represent the port. */
1341 if (port->cfg->mac && eth_addr_from_string(port->cfg->mac, iface_ea)) {
1342 /* Find the interface with this Ethernet address (if any) so that
1343 * we can provide the correct devname to the caller. */
1344 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1345 uint8_t candidate_ea[ETH_ADDR_LEN];
1346 if (!netdev_get_etheraddr(candidate->netdev, candidate_ea)
1347 && eth_addr_equals(iface_ea, candidate_ea)) {
1352 /* Choose the interface whose MAC address will represent the port.
1353 * The Linux kernel bonding code always chooses the MAC address of
1354 * the first slave added to a bond, and the Fedora networking
1355 * scripts always add slaves to a bond in alphabetical order, so
1356 * for compatibility we choose the interface with the name that is
1357 * first in alphabetical order. */
1358 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1359 if (!iface || strcmp(candidate->name, iface->name) < 0) {
1364 /* The local port doesn't count (since we're trying to choose its
1365 * MAC address anyway). */
1366 if (iface->ofp_port == OFPP_LOCAL) {
1371 error = netdev_get_etheraddr(iface->netdev, iface_ea);
1377 /* Compare against our current choice. */
1378 if (!eth_addr_is_multicast(iface_ea) &&
1379 !eth_addr_is_local(iface_ea) &&
1380 !eth_addr_is_reserved(iface_ea) &&
1381 !eth_addr_is_zero(iface_ea) &&
1382 (!found_addr || eth_addr_compare_3way(iface_ea, ea) < 0))
1384 memcpy(ea, iface_ea, ETH_ADDR_LEN);
1385 *hw_addr_iface = iface;
1390 VLOG_DBG("bridge %s: using bridge Ethernet address "ETH_ADDR_FMT,
1391 br->name, ETH_ADDR_ARGS(ea));
1393 memcpy(ea, br->default_ea, ETH_ADDR_LEN);
1394 *hw_addr_iface = NULL;
1395 VLOG_WARN("bridge %s: using default bridge Ethernet "
1396 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1399 hmapx_destroy(&mirror_output_ports);
1402 /* Choose and returns the datapath ID for bridge 'br' given that the bridge
1403 * Ethernet address is 'bridge_ea'. If 'bridge_ea' is the Ethernet address of
1404 * an interface on 'br', then that interface must be passed in as
1405 * 'hw_addr_iface'; if 'bridge_ea' was derived some other way, then
1406 * 'hw_addr_iface' must be passed in as a null pointer. */
1408 bridge_pick_datapath_id(struct bridge *br,
1409 const uint8_t bridge_ea[ETH_ADDR_LEN],
1410 struct iface *hw_addr_iface)
1413 * The procedure for choosing a bridge MAC address will, in the most
1414 * ordinary case, also choose a unique MAC that we can use as a datapath
1415 * ID. In some special cases, though, multiple bridges will end up with
1416 * the same MAC address. This is OK for the bridges, but it will confuse
1417 * the OpenFlow controller, because each datapath needs a unique datapath
1420 * Datapath IDs must be unique. It is also very desirable that they be
1421 * stable from one run to the next, so that policy set on a datapath
1424 const char *datapath_id;
1427 datapath_id = bridge_get_other_config(br->cfg, "datapath-id");
1428 if (datapath_id && dpid_from_string(datapath_id, &dpid)) {
1432 if (!hw_addr_iface) {
1434 * A purely internal bridge, that is, one that has no non-virtual
1435 * network devices on it at all, is difficult because it has no
1436 * natural unique identifier at all.
1438 * When the host is a XenServer, we handle this case by hashing the
1439 * host's UUID with the name of the bridge. Names of bridges are
1440 * persistent across XenServer reboots, although they can be reused if
1441 * an internal network is destroyed and then a new one is later
1442 * created, so this is fairly effective.
1444 * When the host is not a XenServer, we punt by using a random MAC
1445 * address on each run.
1447 const char *host_uuid = xenserver_get_host_uuid();
1449 char *combined = xasprintf("%s,%s", host_uuid, br->name);
1450 dpid = dpid_from_hash(combined, strlen(combined));
1456 return eth_addr_to_uint64(bridge_ea);
1460 dpid_from_hash(const void *data, size_t n)
1462 uint8_t hash[SHA1_DIGEST_SIZE];
1464 BUILD_ASSERT_DECL(sizeof hash >= ETH_ADDR_LEN);
1465 sha1_bytes(data, n, hash);
1466 eth_addr_mark_random(hash);
1467 return eth_addr_to_uint64(hash);
1471 iface_refresh_status(struct iface *iface)
1475 enum netdev_flags flags;
1482 if (iface_is_synthetic(iface)) {
1488 if (!netdev_get_status(iface->netdev, &sh)) {
1490 char **keys, **values;
1492 shash_to_ovs_idl_map(&sh, &keys, &values, &n);
1493 ovsrec_interface_set_status(iface->cfg, keys, values, n);
1498 ovsrec_interface_set_status(iface->cfg, NULL, NULL, 0);
1501 shash_destroy_free_data(&sh);
1503 error = netdev_get_flags(iface->netdev, &flags);
1505 ovsrec_interface_set_admin_state(iface->cfg, flags & NETDEV_UP ? "up" : "down");
1508 ovsrec_interface_set_admin_state(iface->cfg, NULL);
1511 error = netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
1513 ovsrec_interface_set_duplex(iface->cfg,
1514 netdev_features_is_full_duplex(current)
1516 /* warning: uint64_t -> int64_t conversion */
1517 bps = netdev_features_to_bps(current);
1518 ovsrec_interface_set_link_speed(iface->cfg, &bps, 1);
1521 ovsrec_interface_set_duplex(iface->cfg, NULL);
1522 ovsrec_interface_set_link_speed(iface->cfg, NULL, 0);
1525 error = netdev_get_mtu(iface->netdev, &mtu);
1528 ovsrec_interface_set_mtu(iface->cfg, &mtu_64, 1);
1531 ovsrec_interface_set_mtu(iface->cfg, NULL, 0);
1535 /* Writes 'iface''s CFM statistics to the database. */
1537 iface_refresh_cfm_stats(struct iface *iface)
1539 const struct ovsrec_interface *cfg = iface->cfg;
1541 const uint64_t *rmps;
1544 if (iface_is_synthetic(iface)) {
1548 fault = ofproto_port_get_cfm_fault(iface->port->bridge->ofproto,
1551 bool fault_bool = fault;
1552 ovsrec_interface_set_cfm_fault(cfg, &fault_bool, 1);
1554 ovsrec_interface_set_cfm_fault(cfg, NULL, 0);
1557 error = ofproto_port_get_cfm_remote_mpids(iface->port->bridge->ofproto,
1558 iface->ofp_port, &rmps, &n_rmps);
1560 ovsrec_interface_set_cfm_remote_mpids(cfg, (const int64_t *)rmps,
1563 ovsrec_interface_set_cfm_remote_mpids(cfg, NULL, 0);
1568 iface_refresh_stats(struct iface *iface)
1570 #define IFACE_STATS \
1571 IFACE_STAT(rx_packets, "rx_packets") \
1572 IFACE_STAT(tx_packets, "tx_packets") \
1573 IFACE_STAT(rx_bytes, "rx_bytes") \
1574 IFACE_STAT(tx_bytes, "tx_bytes") \
1575 IFACE_STAT(rx_dropped, "rx_dropped") \
1576 IFACE_STAT(tx_dropped, "tx_dropped") \
1577 IFACE_STAT(rx_errors, "rx_errors") \
1578 IFACE_STAT(tx_errors, "tx_errors") \
1579 IFACE_STAT(rx_frame_errors, "rx_frame_err") \
1580 IFACE_STAT(rx_over_errors, "rx_over_err") \
1581 IFACE_STAT(rx_crc_errors, "rx_crc_err") \
1582 IFACE_STAT(collisions, "collisions")
1584 #define IFACE_STAT(MEMBER, NAME) NAME,
1585 static char *keys[] = { IFACE_STATS };
1587 int64_t values[ARRAY_SIZE(keys)];
1590 struct netdev_stats stats;
1592 if (iface_is_synthetic(iface)) {
1596 /* Intentionally ignore return value, since errors will set 'stats' to
1597 * all-1s, and we will deal with that correctly below. */
1598 netdev_get_stats(iface->netdev, &stats);
1600 /* Copy statistics into values[] array. */
1602 #define IFACE_STAT(MEMBER, NAME) values[i++] = stats.MEMBER;
1605 assert(i == ARRAY_SIZE(keys));
1607 ovsrec_interface_set_statistics(iface->cfg, keys, values, ARRAY_SIZE(keys));
1612 br_refresh_stp_status(struct bridge *br)
1614 struct ofproto *ofproto = br->ofproto;
1615 struct ofproto_stp_status status;
1616 char *keys[3], *values[3];
1619 if (ofproto_get_stp_status(ofproto, &status)) {
1623 if (!status.enabled) {
1624 ovsrec_bridge_set_status(br->cfg, NULL, NULL, 0);
1628 keys[0] = "stp_bridge_id",
1629 values[0] = xasprintf(STP_ID_FMT, STP_ID_ARGS(status.bridge_id));
1630 keys[1] = "stp_designated_root",
1631 values[1] = xasprintf(STP_ID_FMT, STP_ID_ARGS(status.designated_root));
1632 keys[2] = "stp_root_path_cost",
1633 values[2] = xasprintf("%d", status.root_path_cost);
1635 ovsrec_bridge_set_status(br->cfg, keys, values, ARRAY_SIZE(values));
1637 for (i = 0; i < ARRAY_SIZE(values); i++) {
1643 port_refresh_stp_status(struct port *port)
1645 struct ofproto *ofproto = port->bridge->ofproto;
1646 struct iface *iface;
1647 struct ofproto_port_stp_status status;
1649 char *str_values[4];
1650 int64_t int_values[3];
1653 if (port_is_synthetic(port)) {
1657 /* STP doesn't currently support bonds. */
1658 if (!list_is_singleton(&port->ifaces)) {
1659 ovsrec_port_set_status(port->cfg, NULL, NULL, 0);
1663 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
1665 if (ofproto_port_get_stp_status(ofproto, iface->ofp_port, &status)) {
1669 if (!status.enabled) {
1670 ovsrec_port_set_status(port->cfg, NULL, NULL, 0);
1671 ovsrec_port_set_statistics(port->cfg, NULL, NULL, 0);
1675 /* Set Status column. */
1676 keys[0] = "stp_port_id";
1677 str_values[0] = xasprintf(STP_PORT_ID_FMT, status.port_id);
1678 keys[1] = "stp_state";
1679 str_values[1] = xstrdup(stp_state_name(status.state));
1680 keys[2] = "stp_sec_in_state";
1681 str_values[2] = xasprintf("%u", status.sec_in_state);
1682 keys[3] = "stp_role";
1683 str_values[3] = xstrdup(stp_role_name(status.role));
1685 ovsrec_port_set_status(port->cfg, keys, str_values,
1686 ARRAY_SIZE(str_values));
1688 for (i = 0; i < ARRAY_SIZE(str_values); i++) {
1689 free(str_values[i]);
1692 /* Set Statistics column. */
1693 keys[0] = "stp_tx_count";
1694 int_values[0] = status.tx_count;
1695 keys[1] = "stp_rx_count";
1696 int_values[1] = status.rx_count;
1697 keys[2] = "stp_error_count";
1698 int_values[2] = status.error_count;
1700 ovsrec_port_set_statistics(port->cfg, keys, int_values,
1701 ARRAY_SIZE(int_values));
1705 enable_system_stats(const struct ovsrec_open_vswitch *cfg)
1709 /* Use other-config:enable-system-stats by preference. */
1710 enable = get_ovsrec_key_value(cfg->key_other_config,
1711 cfg->value_other_config,
1712 cfg->n_other_config,
1713 "enable-statistics");
1715 return !strcmp(enable, "true");
1718 /* Disable by default. */
1723 refresh_system_stats(const struct ovsrec_open_vswitch *cfg)
1725 struct ovsdb_datum datum;
1729 if (enable_system_stats(cfg)) {
1730 get_system_stats(&stats);
1733 ovsdb_datum_from_shash(&datum, &stats);
1734 ovsdb_idl_txn_write(&cfg->header_, &ovsrec_open_vswitch_col_statistics,
1738 static inline const char *
1739 nx_role_to_str(enum nx_role role)
1744 case NX_ROLE_MASTER:
1749 return "*** INVALID ROLE ***";
1754 refresh_controller_status(void)
1758 const struct ovsrec_controller *cfg;
1762 /* Accumulate status for controllers on all bridges. */
1763 HMAP_FOR_EACH (br, node, &all_bridges) {
1764 ofproto_get_ofproto_controller_info(br->ofproto, &info);
1767 /* Update each controller in the database with current status. */
1768 OVSREC_CONTROLLER_FOR_EACH(cfg, idl) {
1769 struct ofproto_controller_info *cinfo =
1770 shash_find_data(&info, cfg->target);
1773 ovsrec_controller_set_is_connected(cfg, cinfo->is_connected);
1774 ovsrec_controller_set_role(cfg, nx_role_to_str(cinfo->role));
1775 ovsrec_controller_set_status(cfg, (char **) cinfo->pairs.keys,
1776 (char **) cinfo->pairs.values,
1779 ovsrec_controller_set_is_connected(cfg, false);
1780 ovsrec_controller_set_role(cfg, NULL);
1781 ovsrec_controller_set_status(cfg, NULL, NULL, 0);
1785 ofproto_free_ofproto_controller_info(&info);
1789 refresh_cfm_stats(void)
1791 static struct ovsdb_idl_txn *txn = NULL;
1796 txn = ovsdb_idl_txn_create(idl);
1798 HMAP_FOR_EACH (br, node, &all_bridges) {
1799 struct iface *iface;
1801 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
1802 iface_refresh_cfm_stats(iface);
1807 if (ovsdb_idl_txn_commit(txn) != TXN_INCOMPLETE) {
1808 ovsdb_idl_txn_destroy(txn);
1813 /* Performs periodic activity required by bridges that needs to be done with
1814 * the least possible latency.
1816 * It makes sense to call this function a couple of times per poll loop, to
1817 * provide a significant performance boost on some benchmarks with ofprotos
1818 * that use the ofproto-dpif implementation. */
1820 bridge_run_fast(void)
1824 HMAP_FOR_EACH (br, node, &all_bridges) {
1825 ofproto_run_fast(br->ofproto);
1832 const struct ovsrec_open_vswitch *cfg;
1834 bool vlan_splinters_changed;
1835 bool database_changed;
1838 /* (Re)configure if necessary. */
1839 database_changed = ovsdb_idl_run(idl);
1840 if (ovsdb_idl_is_lock_contended(idl)) {
1841 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
1842 struct bridge *br, *next_br;
1844 VLOG_ERR_RL(&rl, "another ovs-vswitchd process is running, "
1845 "disabling this process until it goes away");
1847 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
1851 } else if (!ovsdb_idl_has_lock(idl)) {
1854 cfg = ovsrec_open_vswitch_first(idl);
1856 /* Let each bridge do the work that it needs to do. */
1857 HMAP_FOR_EACH (br, node, &all_bridges) {
1858 ofproto_run(br->ofproto);
1861 /* Re-configure SSL. We do this on every trip through the main loop,
1862 * instead of just when the database changes, because the contents of the
1863 * key and certificate files can change without the database changing.
1865 * We do this before bridge_reconfigure() because that function might
1866 * initiate SSL connections and thus requires SSL to be configured. */
1867 if (cfg && cfg->ssl) {
1868 const struct ovsrec_ssl *ssl = cfg->ssl;
1870 stream_ssl_set_key_and_cert(ssl->private_key, ssl->certificate);
1871 stream_ssl_set_ca_cert_file(ssl->ca_cert, ssl->bootstrap_ca_cert);
1874 /* If VLAN splinters are in use, then we need to reconfigure if VLAN usage
1876 vlan_splinters_changed = false;
1877 if (vlan_splinters_enabled_anywhere) {
1878 HMAP_FOR_EACH (br, node, &all_bridges) {
1879 if (ofproto_has_vlan_usage_changed(br->ofproto)) {
1880 vlan_splinters_changed = true;
1886 if (database_changed || vlan_splinters_changed) {
1888 struct ovsdb_idl_txn *txn = ovsdb_idl_txn_create(idl);
1890 bridge_reconfigure(cfg);
1892 ovsrec_open_vswitch_set_cur_cfg(cfg, cfg->next_cfg);
1893 ovsdb_idl_txn_commit(txn);
1894 ovsdb_idl_txn_destroy(txn); /* XXX */
1896 /* We still need to reconfigure to avoid dangling pointers to
1897 * now-destroyed ovsrec structures inside bridge data. */
1898 static const struct ovsrec_open_vswitch null_cfg;
1900 bridge_reconfigure(&null_cfg);
1904 /* Refresh system and interface stats if necessary. */
1905 if (time_msec() >= stats_timer) {
1907 struct ovsdb_idl_txn *txn;
1909 txn = ovsdb_idl_txn_create(idl);
1910 HMAP_FOR_EACH (br, node, &all_bridges) {
1914 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1915 struct iface *iface;
1917 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1918 iface_refresh_stats(iface);
1919 iface_refresh_status(iface);
1923 HMAP_FOR_EACH (m, hmap_node, &br->mirrors) {
1924 mirror_refresh_stats(m);
1928 refresh_system_stats(cfg);
1929 refresh_controller_status();
1930 ovsdb_idl_txn_commit(txn);
1931 ovsdb_idl_txn_destroy(txn); /* XXX */
1934 stats_timer = time_msec() + STATS_INTERVAL;
1937 if (time_msec() >= db_limiter) {
1938 struct ovsdb_idl_txn *txn;
1940 txn = ovsdb_idl_txn_create(idl);
1941 HMAP_FOR_EACH (br, node, &all_bridges) {
1942 struct iface *iface;
1945 br_refresh_stp_status(br);
1947 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1948 port_refresh_stp_status(port);
1951 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
1952 const char *link_state;
1953 int64_t link_resets;
1956 if (iface_is_synthetic(iface)) {
1960 current = ofproto_port_is_lacp_current(br->ofproto,
1964 ovsrec_interface_set_lacp_current(iface->cfg, &bl, 1);
1966 ovsrec_interface_set_lacp_current(iface->cfg, NULL, 0);
1969 link_state = netdev_get_carrier(iface->netdev) ? "up" : "down";
1970 ovsrec_interface_set_link_state(iface->cfg, link_state);
1972 link_resets = netdev_get_carrier_resets(iface->netdev);
1973 ovsrec_interface_set_link_resets(iface->cfg, &link_resets, 1);
1977 if (ovsdb_idl_txn_commit(txn) != TXN_UNCHANGED) {
1978 db_limiter = time_msec() + DB_LIMIT_INTERVAL;
1980 ovsdb_idl_txn_destroy(txn);
1983 refresh_cfm_stats();
1989 ovsdb_idl_wait(idl);
1990 if (!hmap_is_empty(&all_bridges)) {
1993 HMAP_FOR_EACH (br, node, &all_bridges) {
1994 ofproto_wait(br->ofproto);
1996 poll_timer_wait_until(stats_timer);
1998 if (db_limiter > time_msec()) {
1999 poll_timer_wait_until(db_limiter);
2004 /* QoS unixctl user interface functions. */
2006 struct qos_unixctl_show_cbdata {
2008 struct iface *iface;
2012 qos_unixctl_show_cb(unsigned int queue_id,
2013 const struct shash *details,
2016 struct qos_unixctl_show_cbdata *data = aux;
2017 struct ds *ds = data->ds;
2018 struct iface *iface = data->iface;
2019 struct netdev_queue_stats stats;
2020 struct shash_node *node;
2023 ds_put_cstr(ds, "\n");
2025 ds_put_format(ds, "Queue %u:\n", queue_id);
2027 ds_put_cstr(ds, "Default:\n");
2030 SHASH_FOR_EACH (node, details) {
2031 ds_put_format(ds, "\t%s: %s\n", node->name, (char *)node->data);
2034 error = netdev_get_queue_stats(iface->netdev, queue_id, &stats);
2036 if (stats.tx_packets != UINT64_MAX) {
2037 ds_put_format(ds, "\ttx_packets: %"PRIu64"\n", stats.tx_packets);
2040 if (stats.tx_bytes != UINT64_MAX) {
2041 ds_put_format(ds, "\ttx_bytes: %"PRIu64"\n", stats.tx_bytes);
2044 if (stats.tx_errors != UINT64_MAX) {
2045 ds_put_format(ds, "\ttx_errors: %"PRIu64"\n", stats.tx_errors);
2048 ds_put_format(ds, "\tFailed to get statistics for queue %u: %s",
2049 queue_id, strerror(error));
2054 qos_unixctl_show(struct unixctl_conn *conn,
2055 const char *args, void *aux OVS_UNUSED)
2057 struct ds ds = DS_EMPTY_INITIALIZER;
2058 struct shash sh = SHASH_INITIALIZER(&sh);
2059 struct iface *iface;
2061 struct shash_node *node;
2062 struct qos_unixctl_show_cbdata data;
2065 iface = iface_find(args);
2067 unixctl_command_reply(conn, 501, "no such interface");
2071 netdev_get_qos(iface->netdev, &type, &sh);
2073 if (*type != '\0') {
2074 ds_put_format(&ds, "QoS: %s %s\n", iface->name, type);
2076 SHASH_FOR_EACH (node, &sh) {
2077 ds_put_format(&ds, "%s: %s\n", node->name, (char *)node->data);
2082 error = netdev_dump_queues(iface->netdev, qos_unixctl_show_cb, &data);
2085 ds_put_format(&ds, "failed to dump queues: %s", strerror(error));
2087 unixctl_command_reply(conn, 200, ds_cstr(&ds));
2089 ds_put_format(&ds, "QoS not configured on %s\n", iface->name);
2090 unixctl_command_reply(conn, 501, ds_cstr(&ds));
2093 shash_destroy_free_data(&sh);
2097 /* Bridge reconfiguration functions. */
2099 bridge_create(const struct ovsrec_bridge *br_cfg)
2103 assert(!bridge_lookup(br_cfg->name));
2104 br = xzalloc(sizeof *br);
2106 br->name = xstrdup(br_cfg->name);
2107 br->type = xstrdup(ofproto_normalize_type(br_cfg->datapath_type));
2110 /* Derive the default Ethernet address from the bridge's UUID. This should
2111 * be unique and it will be stable between ovs-vswitchd runs. */
2112 memcpy(br->default_ea, &br_cfg->header_.uuid, ETH_ADDR_LEN);
2113 eth_addr_mark_random(br->default_ea);
2115 hmap_init(&br->ports);
2116 hmap_init(&br->ifaces);
2117 hmap_init(&br->iface_by_name);
2118 hmap_init(&br->mirrors);
2120 hmap_insert(&all_bridges, &br->node, hash_string(br->name, 0));
2124 bridge_destroy(struct bridge *br)
2127 struct mirror *mirror, *next_mirror;
2128 struct port *port, *next_port;
2130 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
2133 HMAP_FOR_EACH_SAFE (mirror, next_mirror, hmap_node, &br->mirrors) {
2134 mirror_destroy(mirror);
2136 hmap_remove(&all_bridges, &br->node);
2137 ofproto_destroy(br->ofproto);
2138 hmap_destroy(&br->ifaces);
2139 hmap_destroy(&br->ports);
2140 hmap_destroy(&br->iface_by_name);
2141 hmap_destroy(&br->mirrors);
2148 static struct bridge *
2149 bridge_lookup(const char *name)
2153 HMAP_FOR_EACH_WITH_HASH (br, node, hash_string(name, 0), &all_bridges) {
2154 if (!strcmp(br->name, name)) {
2161 /* Handle requests for a listing of all flows known by the OpenFlow
2162 * stack, including those normally hidden. */
2164 bridge_unixctl_dump_flows(struct unixctl_conn *conn,
2165 const char *args, void *aux OVS_UNUSED)
2170 br = bridge_lookup(args);
2172 unixctl_command_reply(conn, 501, "Unknown bridge");
2177 ofproto_get_all_flows(br->ofproto, &results);
2179 unixctl_command_reply(conn, 200, ds_cstr(&results));
2180 ds_destroy(&results);
2183 /* "bridge/reconnect [BRIDGE]": makes BRIDGE drop all of its controller
2184 * connections and reconnect. If BRIDGE is not specified, then all bridges
2185 * drop their controller connections and reconnect. */
2187 bridge_unixctl_reconnect(struct unixctl_conn *conn,
2188 const char *args, void *aux OVS_UNUSED)
2191 if (args[0] != '\0') {
2192 br = bridge_lookup(args);
2194 unixctl_command_reply(conn, 501, "Unknown bridge");
2197 ofproto_reconnect_controllers(br->ofproto);
2199 HMAP_FOR_EACH (br, node, &all_bridges) {
2200 ofproto_reconnect_controllers(br->ofproto);
2203 unixctl_command_reply(conn, 200, NULL);
2207 bridge_get_controllers(const struct bridge *br,
2208 struct ovsrec_controller ***controllersp)
2210 struct ovsrec_controller **controllers;
2211 size_t n_controllers;
2213 controllers = br->cfg->controller;
2214 n_controllers = br->cfg->n_controller;
2216 if (n_controllers == 1 && !strcmp(controllers[0]->target, "none")) {
2222 *controllersp = controllers;
2224 return n_controllers;
2227 /* Adds and deletes "struct port"s and "struct iface"s under 'br' to match
2228 * those configured in 'br->cfg'. */
2230 bridge_add_del_ports(struct bridge *br,
2231 const unsigned long int *splinter_vlans)
2233 struct port *port, *next;
2234 struct shash_node *node;
2235 struct shash new_ports;
2238 /* Collect new ports. */
2239 shash_init(&new_ports);
2240 for (i = 0; i < br->cfg->n_ports; i++) {
2241 const char *name = br->cfg->ports[i]->name;
2242 if (!shash_add_once(&new_ports, name, br->cfg->ports[i])) {
2243 VLOG_WARN("bridge %s: %s specified twice as bridge port",
2247 if (bridge_get_controllers(br, NULL)
2248 && !shash_find(&new_ports, br->name)) {
2249 VLOG_WARN("bridge %s: no port named %s, synthesizing one",
2250 br->name, br->name);
2252 br->synth_local_port.interfaces = &br->synth_local_ifacep;
2253 br->synth_local_port.n_interfaces = 1;
2254 br->synth_local_port.name = br->name;
2256 br->synth_local_iface.name = br->name;
2257 br->synth_local_iface.type = "internal";
2259 br->synth_local_ifacep = &br->synth_local_iface;
2261 shash_add(&new_ports, br->name, &br->synth_local_port);
2264 if (splinter_vlans) {
2265 add_vlan_splinter_ports(br, splinter_vlans, &new_ports);
2268 /* Get rid of deleted ports.
2269 * Get rid of deleted interfaces on ports that still exist. */
2270 HMAP_FOR_EACH_SAFE (port, next, hmap_node, &br->ports) {
2271 port->cfg = shash_find_data(&new_ports, port->name);
2275 port_del_ifaces(port);
2279 /* Create new ports.
2280 * Add new interfaces to existing ports. */
2281 SHASH_FOR_EACH (node, &new_ports) {
2282 struct port *port = port_lookup(br, node->name);
2284 struct ovsrec_port *cfg = node->data;
2285 port = port_create(br, cfg);
2287 port_add_ifaces(port);
2288 if (list_is_empty(&port->ifaces)) {
2289 VLOG_WARN("bridge %s: port %s has no interfaces, dropping",
2290 br->name, port->name);
2294 shash_destroy(&new_ports);
2297 /* Initializes 'oc' appropriately as a management service controller for
2300 * The caller must free oc->target when it is no longer needed. */
2302 bridge_ofproto_controller_for_mgmt(const struct bridge *br,
2303 struct ofproto_controller *oc)
2305 oc->target = xasprintf("punix:%s/%s.mgmt", ovs_rundir(), br->name);
2306 oc->max_backoff = 0;
2307 oc->probe_interval = 60;
2308 oc->band = OFPROTO_OUT_OF_BAND;
2310 oc->burst_limit = 0;
2313 /* Converts ovsrec_controller 'c' into an ofproto_controller in 'oc'. */
2315 bridge_ofproto_controller_from_ovsrec(const struct ovsrec_controller *c,
2316 struct ofproto_controller *oc)
2318 oc->target = c->target;
2319 oc->max_backoff = c->max_backoff ? *c->max_backoff / 1000 : 8;
2320 oc->probe_interval = c->inactivity_probe ? *c->inactivity_probe / 1000 : 5;
2321 oc->band = (!c->connection_mode || !strcmp(c->connection_mode, "in-band")
2322 ? OFPROTO_IN_BAND : OFPROTO_OUT_OF_BAND);
2323 oc->rate_limit = c->controller_rate_limit ? *c->controller_rate_limit : 0;
2324 oc->burst_limit = (c->controller_burst_limit
2325 ? *c->controller_burst_limit : 0);
2328 /* Configures the IP stack for 'br''s local interface properly according to the
2329 * configuration in 'c'. */
2331 bridge_configure_local_iface_netdev(struct bridge *br,
2332 struct ovsrec_controller *c)
2334 struct netdev *netdev;
2335 struct in_addr mask, gateway;
2337 struct iface *local_iface;
2340 /* If there's no local interface or no IP address, give up. */
2341 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
2342 if (!local_iface || !c->local_ip || !inet_aton(c->local_ip, &ip)) {
2346 /* Bring up the local interface. */
2347 netdev = local_iface->netdev;
2348 netdev_turn_flags_on(netdev, NETDEV_UP, true);
2350 /* Configure the IP address and netmask. */
2351 if (!c->local_netmask
2352 || !inet_aton(c->local_netmask, &mask)
2354 mask.s_addr = guess_netmask(ip.s_addr);
2356 if (!netdev_set_in4(netdev, ip, mask)) {
2357 VLOG_INFO("bridge %s: configured IP address "IP_FMT", netmask "IP_FMT,
2358 br->name, IP_ARGS(&ip.s_addr), IP_ARGS(&mask.s_addr));
2361 /* Configure the default gateway. */
2362 if (c->local_gateway
2363 && inet_aton(c->local_gateway, &gateway)
2364 && gateway.s_addr) {
2365 if (!netdev_add_router(netdev, gateway)) {
2366 VLOG_INFO("bridge %s: configured gateway "IP_FMT,
2367 br->name, IP_ARGS(&gateway.s_addr));
2372 /* Returns true if 'a' and 'b' are the same except that any number of slashes
2373 * in either string are treated as equal to any number of slashes in the other,
2374 * e.g. "x///y" is equal to "x/y". */
2376 equal_pathnames(const char *a, const char *b)
2380 a += strspn(a, "/");
2381 b += strspn(b, "/");
2382 } else if (*a == '\0') {
2393 bridge_configure_remotes(struct bridge *br,
2394 const struct sockaddr_in *managers, size_t n_managers)
2396 const char *disable_ib_str, *queue_id_str;
2397 bool disable_in_band = false;
2400 struct ovsrec_controller **controllers;
2401 size_t n_controllers;
2403 enum ofproto_fail_mode fail_mode;
2405 struct ofproto_controller *ocs;
2409 /* Check if we should disable in-band control on this bridge. */
2410 disable_ib_str = bridge_get_other_config(br->cfg, "disable-in-band");
2411 if (disable_ib_str && !strcmp(disable_ib_str, "true")) {
2412 disable_in_band = true;
2415 /* Set OpenFlow queue ID for in-band control. */
2416 queue_id_str = bridge_get_other_config(br->cfg, "in-band-queue");
2417 queue_id = queue_id_str ? strtol(queue_id_str, NULL, 10) : -1;
2418 ofproto_set_in_band_queue(br->ofproto, queue_id);
2420 if (disable_in_band) {
2421 ofproto_set_extra_in_band_remotes(br->ofproto, NULL, 0);
2423 ofproto_set_extra_in_band_remotes(br->ofproto, managers, n_managers);
2426 n_controllers = bridge_get_controllers(br, &controllers);
2428 ocs = xmalloc((n_controllers + 1) * sizeof *ocs);
2431 bridge_ofproto_controller_for_mgmt(br, &ocs[n_ocs++]);
2432 for (i = 0; i < n_controllers; i++) {
2433 struct ovsrec_controller *c = controllers[i];
2435 if (!strncmp(c->target, "punix:", 6)
2436 || !strncmp(c->target, "unix:", 5)) {
2437 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2440 whitelist = xasprintf("unix:%s/%s.controller",
2441 ovs_rundir(), br->name);
2442 if (!equal_pathnames(c->target, whitelist)) {
2443 /* Prevent remote ovsdb-server users from accessing arbitrary
2444 * Unix domain sockets and overwriting arbitrary local
2446 VLOG_ERR_RL(&rl, "bridge %s: Not adding Unix domain socket "
2447 "controller \"%s\" due to possibility for remote "
2448 "exploit. Instead, specify whitelisted \"%s\" or "
2449 "connect to \"unix:%s/%s.mgmt\" (which is always "
2450 "available without special configuration).",
2451 br->name, c->target, whitelist,
2452 ovs_rundir(), br->name);
2460 bridge_configure_local_iface_netdev(br, c);
2461 bridge_ofproto_controller_from_ovsrec(c, &ocs[n_ocs]);
2462 if (disable_in_band) {
2463 ocs[n_ocs].band = OFPROTO_OUT_OF_BAND;
2468 ofproto_set_controllers(br->ofproto, ocs, n_ocs);
2469 free(ocs[0].target); /* From bridge_ofproto_controller_for_mgmt(). */
2472 /* Set the fail-mode. */
2473 fail_mode = !br->cfg->fail_mode
2474 || !strcmp(br->cfg->fail_mode, "standalone")
2475 ? OFPROTO_FAIL_STANDALONE
2476 : OFPROTO_FAIL_SECURE;
2477 ofproto_set_fail_mode(br->ofproto, fail_mode);
2479 /* Configure OpenFlow controller connection snooping. */
2480 if (!ofproto_has_snoops(br->ofproto)) {
2484 sset_add_and_free(&snoops, xasprintf("punix:%s/%s.snoop",
2485 ovs_rundir(), br->name));
2486 ofproto_set_snoops(br->ofproto, &snoops);
2487 sset_destroy(&snoops);
2491 /* Port functions. */
2493 static struct port *
2494 port_create(struct bridge *br, const struct ovsrec_port *cfg)
2498 port = xzalloc(sizeof *port);
2500 port->name = xstrdup(cfg->name);
2502 list_init(&port->ifaces);
2504 hmap_insert(&br->ports, &port->hmap_node, hash_string(port->name, 0));
2506 VLOG_INFO("created port %s on bridge %s", port->name, br->name);
2512 get_port_other_config(const struct ovsrec_port *port, const char *key,
2513 const char *default_value)
2517 value = get_ovsrec_key_value(port->key_other_config,
2518 port->value_other_config,
2519 port->n_other_config, key);
2520 return value ? value : default_value;
2524 get_interface_other_config(const struct ovsrec_interface *iface,
2525 const char *key, const char *default_value)
2529 value = get_ovsrec_key_value(iface->key_other_config,
2530 iface->value_other_config,
2531 iface->n_other_config, key);
2532 return value ? value : default_value;
2535 /* Deletes interfaces from 'port' that are no longer configured for it. */
2537 port_del_ifaces(struct port *port)
2539 struct iface *iface, *next;
2540 struct sset new_ifaces;
2543 /* Collect list of new interfaces. */
2544 sset_init(&new_ifaces);
2545 for (i = 0; i < port->cfg->n_interfaces; i++) {
2546 const char *name = port->cfg->interfaces[i]->name;
2547 const char *type = port->cfg->interfaces[i]->name;
2548 if (strcmp(type, "null")) {
2549 sset_add(&new_ifaces, name);
2553 /* Get rid of deleted interfaces. */
2554 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2555 if (!sset_contains(&new_ifaces, iface->name)) {
2556 iface_destroy(iface);
2560 sset_destroy(&new_ifaces);
2563 /* Adds new interfaces to 'port' and updates 'type' and 'cfg' members of
2566 port_add_ifaces(struct port *port)
2568 struct shash new_ifaces;
2569 struct shash_node *node;
2572 /* Collect new ifaces. */
2573 shash_init(&new_ifaces);
2574 for (i = 0; i < port->cfg->n_interfaces; i++) {
2575 const struct ovsrec_interface *cfg = port->cfg->interfaces[i];
2576 if (strcmp(cfg->type, "null")
2577 && !shash_add_once(&new_ifaces, cfg->name, cfg)) {
2578 VLOG_WARN("port %s: %s specified twice as port interface",
2579 port->name, cfg->name);
2580 iface_clear_db_record(cfg);
2584 /* Create new interfaces.
2585 * Update interface types and 'cfg' members. */
2586 SHASH_FOR_EACH (node, &new_ifaces) {
2587 const struct ovsrec_interface *cfg = node->data;
2588 const char *iface_name = node->name;
2589 struct iface *iface;
2591 iface = iface_lookup(port->bridge, iface_name);
2593 iface = iface_create(port, cfg);
2598 /* Determine interface type. The local port always has type
2599 * "internal". Other ports take their type from the database and
2600 * default to "system" if none is specified. */
2601 iface->type = (!strcmp(iface_name, port->bridge->name) ? "internal"
2602 : cfg->type[0] ? cfg->type
2605 shash_destroy(&new_ifaces);
2609 port_destroy(struct port *port)
2612 struct bridge *br = port->bridge;
2613 struct iface *iface, *next;
2616 ofproto_bundle_unregister(br->ofproto, port);
2619 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2620 iface_destroy(iface);
2623 hmap_remove(&br->ports, &port->hmap_node);
2625 VLOG_INFO("destroyed port %s on bridge %s", port->name, br->name);
2632 static struct port *
2633 port_lookup(const struct bridge *br, const char *name)
2637 HMAP_FOR_EACH_WITH_HASH (port, hmap_node, hash_string(name, 0),
2639 if (!strcmp(port->name, name)) {
2647 enable_lacp(struct port *port, bool *activep)
2649 if (!port->cfg->lacp) {
2650 /* XXX when LACP implementation has been sufficiently tested, enable by
2651 * default and make active on bonded ports. */
2653 } else if (!strcmp(port->cfg->lacp, "off")) {
2655 } else if (!strcmp(port->cfg->lacp, "active")) {
2658 } else if (!strcmp(port->cfg->lacp, "passive")) {
2662 VLOG_WARN("port %s: unknown LACP mode %s",
2663 port->name, port->cfg->lacp);
2668 static struct lacp_settings *
2669 port_configure_lacp(struct port *port, struct lacp_settings *s)
2671 const char *lacp_time, *system_id;
2672 long long int custom_time;
2675 if (!enable_lacp(port, &s->active)) {
2679 s->name = port->name;
2681 system_id = get_port_other_config(port->cfg, "lacp-system-id", NULL);
2683 || sscanf(system_id, ETH_ADDR_SCAN_FMT,
2684 ETH_ADDR_SCAN_ARGS(s->id)) != ETH_ADDR_SCAN_COUNT) {
2685 memcpy(s->id, port->bridge->ea, ETH_ADDR_LEN);
2688 if (eth_addr_is_zero(s->id)) {
2689 VLOG_WARN("port %s: Invalid zero LACP system ID.", port->name);
2693 /* Prefer bondable links if unspecified. */
2694 priority = atoi(get_port_other_config(port->cfg, "lacp-system-priority",
2696 s->priority = (priority > 0 && priority <= UINT16_MAX
2698 : UINT16_MAX - !list_is_short(&port->ifaces));
2700 s->heartbeat = !strcmp(get_port_other_config(port->cfg,
2704 lacp_time = get_port_other_config(port->cfg, "lacp-time", "slow");
2705 custom_time = atoi(lacp_time);
2706 if (!strcmp(lacp_time, "fast")) {
2707 s->lacp_time = LACP_TIME_FAST;
2708 } else if (!strcmp(lacp_time, "slow")) {
2709 s->lacp_time = LACP_TIME_SLOW;
2710 } else if (custom_time > 0) {
2711 s->lacp_time = LACP_TIME_CUSTOM;
2712 s->custom_time = custom_time;
2714 s->lacp_time = LACP_TIME_SLOW;
2721 iface_configure_lacp(struct iface *iface, struct lacp_slave_settings *s)
2723 int priority, portid, key;
2725 portid = atoi(get_interface_other_config(iface->cfg, "lacp-port-id", "0"));
2726 priority = atoi(get_interface_other_config(iface->cfg,
2727 "lacp-port-priority", "0"));
2728 key = atoi(get_interface_other_config(iface->cfg, "lacp-aggregation-key",
2731 if (portid <= 0 || portid > UINT16_MAX) {
2732 portid = iface->ofp_port;
2735 if (priority <= 0 || priority > UINT16_MAX) {
2736 priority = UINT16_MAX;
2739 if (key < 0 || key > UINT16_MAX) {
2743 s->name = iface->name;
2745 s->priority = priority;
2750 port_configure_bond(struct port *port, struct bond_settings *s,
2751 uint32_t *bond_stable_ids)
2753 const char *detect_s;
2754 struct iface *iface;
2755 int miimon_interval;
2758 s->name = port->name;
2759 s->balance = BM_SLB;
2760 if (port->cfg->bond_mode) {
2761 if (!bond_mode_from_string(&s->balance, port->cfg->bond_mode)) {
2762 VLOG_WARN("port %s: unknown bond_mode %s, defaulting to %s",
2763 port->name, port->cfg->bond_mode,
2764 bond_mode_to_string(s->balance));
2767 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
2769 /* XXX: Post version 1.4.*, change the default bond_mode to
2770 * active-backup. Until then, warn that the change is imminent. */
2771 VLOG_WARN_RL(&rl, "port %s: Using the default bond_mode %s. Note that"
2772 " in future versions, the default bond_mode is expected"
2773 " to change to active-backup", port->name,
2774 bond_mode_to_string(s->balance));
2776 if (s->balance == BM_SLB && port->bridge->cfg->n_flood_vlans) {
2777 VLOG_WARN("port %s: SLB bonds are incompatible with flood_vlans, "
2778 "please use another bond type or disable flood_vlans",
2782 miimon_interval = atoi(get_port_other_config(port->cfg,
2783 "bond-miimon-interval", "0"));
2784 if (miimon_interval <= 0) {
2785 miimon_interval = 200;
2788 detect_s = get_port_other_config(port->cfg, "bond-detect-mode", "carrier");
2789 if (!strcmp(detect_s, "carrier")) {
2790 miimon_interval = 0;
2791 } else if (strcmp(detect_s, "miimon")) {
2792 VLOG_WARN("port %s: unsupported bond-detect-mode %s, "
2793 "defaulting to carrier", port->name, detect_s);
2794 miimon_interval = 0;
2797 s->up_delay = MAX(0, port->cfg->bond_updelay);
2798 s->down_delay = MAX(0, port->cfg->bond_downdelay);
2799 s->basis = atoi(get_port_other_config(port->cfg, "bond-hash-basis", "0"));
2800 s->rebalance_interval = atoi(
2801 get_port_other_config(port->cfg, "bond-rebalance-interval", "10000"));
2802 if (s->rebalance_interval < 1000) {
2803 s->rebalance_interval = 1000;
2806 s->fake_iface = port->cfg->bond_fake_iface;
2809 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
2810 long long stable_id;
2812 stable_id = atoll(get_interface_other_config(iface->cfg,
2813 "bond-stable-id", "0"));
2814 if (stable_id <= 0 || stable_id >= UINT32_MAX) {
2815 stable_id = iface->ofp_port;
2817 bond_stable_ids[i++] = stable_id;
2819 netdev_set_miimon_interval(iface->netdev, miimon_interval);
2823 /* Returns true if 'port' is synthetic, that is, if we constructed it locally
2824 * instead of obtaining it from the database. */
2826 port_is_synthetic(const struct port *port)
2828 return ovsdb_idl_row_is_synthetic(&port->cfg->header_);
2831 /* Interface functions. */
2833 static struct iface *
2834 iface_create(struct port *port, const struct ovsrec_interface *if_cfg)
2836 struct bridge *br = port->bridge;
2837 struct iface *iface;
2838 char *name = if_cfg->name;
2840 iface = xzalloc(sizeof *iface);
2842 iface->name = xstrdup(name);
2843 iface->ofp_port = -1;
2844 iface->tag = tag_create_random();
2845 iface->netdev = NULL;
2846 iface->cfg = if_cfg;
2848 hmap_insert(&br->iface_by_name, &iface->name_node, hash_string(name, 0));
2850 list_push_back(&port->ifaces, &iface->port_elem);
2852 VLOG_DBG("attached network device %s to port %s", iface->name, port->name);
2858 iface_destroy(struct iface *iface)
2861 struct port *port = iface->port;
2862 struct bridge *br = port->bridge;
2864 if (br->ofproto && iface->ofp_port >= 0) {
2865 ofproto_port_unregister(br->ofproto, iface->ofp_port);
2868 if (iface->ofp_port >= 0) {
2869 hmap_remove(&br->ifaces, &iface->ofp_port_node);
2872 list_remove(&iface->port_elem);
2873 hmap_remove(&br->iface_by_name, &iface->name_node);
2875 netdev_close(iface->netdev);
2882 static struct iface *
2883 iface_lookup(const struct bridge *br, const char *name)
2885 struct iface *iface;
2887 HMAP_FOR_EACH_WITH_HASH (iface, name_node, hash_string(name, 0),
2888 &br->iface_by_name) {
2889 if (!strcmp(iface->name, name)) {
2897 static struct iface *
2898 iface_find(const char *name)
2900 const struct bridge *br;
2902 HMAP_FOR_EACH (br, node, &all_bridges) {
2903 struct iface *iface = iface_lookup(br, name);
2912 static struct iface *
2913 iface_from_ofp_port(const struct bridge *br, uint16_t ofp_port)
2915 struct iface *iface;
2917 HMAP_FOR_EACH_IN_BUCKET (iface, ofp_port_node,
2918 hash_int(ofp_port, 0), &br->ifaces) {
2919 if (iface->ofp_port == ofp_port) {
2926 /* Set Ethernet address of 'iface', if one is specified in the configuration
2929 iface_set_mac(struct iface *iface)
2931 uint8_t ea[ETH_ADDR_LEN];
2933 if (!strcmp(iface->type, "internal")
2934 && iface->cfg->mac && eth_addr_from_string(iface->cfg->mac, ea)) {
2935 if (iface->ofp_port == OFPP_LOCAL) {
2936 VLOG_ERR("interface %s: ignoring mac in Interface record "
2937 "(use Bridge record to set local port's mac)",
2939 } else if (eth_addr_is_multicast(ea)) {
2940 VLOG_ERR("interface %s: cannot set MAC to multicast address",
2943 int error = netdev_set_etheraddr(iface->netdev, ea);
2945 VLOG_ERR("interface %s: setting MAC failed (%s)",
2946 iface->name, strerror(error));
2952 /* Sets the ofport column of 'if_cfg' to 'ofport'. */
2954 iface_set_ofport(const struct ovsrec_interface *if_cfg, int64_t ofport)
2956 if (if_cfg && !ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
2957 ovsrec_interface_set_ofport(if_cfg, &ofport, 1);
2961 /* Clears all of the fields in 'if_cfg' that indicate interface status, and
2962 * sets the "ofport" field to -1.
2964 * This is appropriate when 'if_cfg''s interface cannot be created or is
2965 * otherwise invalid. */
2967 iface_clear_db_record(const struct ovsrec_interface *if_cfg)
2969 if (!ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
2970 iface_set_ofport(if_cfg, -1);
2971 ovsrec_interface_set_status(if_cfg, NULL, NULL, 0);
2972 ovsrec_interface_set_admin_state(if_cfg, NULL);
2973 ovsrec_interface_set_duplex(if_cfg, NULL);
2974 ovsrec_interface_set_link_speed(if_cfg, NULL, 0);
2975 ovsrec_interface_set_link_state(if_cfg, NULL);
2976 ovsrec_interface_set_mtu(if_cfg, NULL, 0);
2977 ovsrec_interface_set_cfm_fault(if_cfg, NULL, 0);
2978 ovsrec_interface_set_cfm_remote_mpids(if_cfg, NULL, 0);
2979 ovsrec_interface_set_lacp_current(if_cfg, NULL, 0);
2980 ovsrec_interface_set_statistics(if_cfg, NULL, NULL, 0);
2984 /* Adds the 'n' key-value pairs in 'keys' in 'values' to 'shash'.
2986 * The value strings in '*shash' are taken directly from values[], not copied,
2987 * so the caller should not modify or free them. */
2989 shash_from_ovs_idl_map(char **keys, char **values, size_t n,
2990 struct shash *shash)
2995 for (i = 0; i < n; i++) {
2996 shash_add(shash, keys[i], values[i]);
3000 /* Creates 'keys' and 'values' arrays from 'shash'.
3002 * Sets 'keys' and 'values' to heap allocated arrays representing the key-value
3003 * pairs in 'shash'. The caller takes ownership of 'keys' and 'values'. They
3004 * are populated with with strings taken directly from 'shash' and thus have
3005 * the same ownership of the key-value pairs in shash.
3008 shash_to_ovs_idl_map(struct shash *shash,
3009 char ***keys, char ***values, size_t *n)
3013 struct shash_node *sn;
3015 count = shash_count(shash);
3017 k = xmalloc(count * sizeof *k);
3018 v = xmalloc(count * sizeof *v);
3021 SHASH_FOR_EACH(sn, shash) {
3032 struct iface_delete_queues_cbdata {
3033 struct netdev *netdev;
3034 const struct ovsdb_datum *queues;
3038 queue_ids_include(const struct ovsdb_datum *queues, int64_t target)
3040 union ovsdb_atom atom;
3042 atom.integer = target;
3043 return ovsdb_datum_find_key(queues, &atom, OVSDB_TYPE_INTEGER) != UINT_MAX;
3047 iface_delete_queues(unsigned int queue_id,
3048 const struct shash *details OVS_UNUSED, void *cbdata_)
3050 struct iface_delete_queues_cbdata *cbdata = cbdata_;
3052 if (!queue_ids_include(cbdata->queues, queue_id)) {
3053 netdev_delete_queue(cbdata->netdev, queue_id);
3058 iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos)
3060 struct ofpbuf queues_buf;
3062 ofpbuf_init(&queues_buf, 0);
3064 if (!qos || qos->type[0] == '\0' || qos->n_queues < 1) {
3065 netdev_set_qos(iface->netdev, NULL, NULL);
3067 struct iface_delete_queues_cbdata cbdata;
3068 struct shash details;
3072 /* Configure top-level Qos for 'iface'. */
3073 shash_from_ovs_idl_map(qos->key_other_config, qos->value_other_config,
3074 qos->n_other_config, &details);
3075 netdev_set_qos(iface->netdev, qos->type, &details);
3076 shash_destroy(&details);
3078 /* Deconfigure queues that were deleted. */
3079 cbdata.netdev = iface->netdev;
3080 cbdata.queues = ovsrec_qos_get_queues(qos, OVSDB_TYPE_INTEGER,
3082 netdev_dump_queues(iface->netdev, iface_delete_queues, &cbdata);
3084 /* Configure queues for 'iface'. */
3086 for (i = 0; i < qos->n_queues; i++) {
3087 const struct ovsrec_queue *queue = qos->value_queues[i];
3088 unsigned int queue_id = qos->key_queues[i];
3090 if (queue_id == 0) {
3094 if (queue->n_dscp == 1) {
3095 struct ofproto_port_queue *port_queue;
3097 port_queue = ofpbuf_put_uninit(&queues_buf,
3098 sizeof *port_queue);
3099 port_queue->queue = queue_id;
3100 port_queue->dscp = queue->dscp[0];
3103 shash_from_ovs_idl_map(queue->key_other_config,
3104 queue->value_other_config,
3105 queue->n_other_config, &details);
3106 netdev_set_queue(iface->netdev, queue_id, &details);
3107 shash_destroy(&details);
3110 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
3111 VLOG_WARN_RL(&rl, "interface %s: QoS configured without a default "
3112 "queue (queue 0). Packets not directed to a "
3113 "correctly configured queue may be dropped.",
3118 if (iface->ofp_port >= 0) {
3119 const struct ofproto_port_queue *port_queues = queues_buf.data;
3120 size_t n_queues = queues_buf.size / sizeof *port_queues;
3122 ofproto_port_set_queues(iface->port->bridge->ofproto, iface->ofp_port,
3123 port_queues, n_queues);
3126 netdev_set_policing(iface->netdev,
3127 iface->cfg->ingress_policing_rate,
3128 iface->cfg->ingress_policing_burst);
3130 ofpbuf_uninit(&queues_buf);
3134 iface_configure_cfm(struct iface *iface)
3136 const struct ovsrec_interface *cfg = iface->cfg;
3137 const char *extended_str, *opstate_str;
3138 struct cfm_settings s;
3140 if (!cfg->n_cfm_mpid) {
3141 ofproto_port_clear_cfm(iface->port->bridge->ofproto, iface->ofp_port);
3145 s.mpid = *cfg->cfm_mpid;
3146 s.interval = atoi(get_interface_other_config(iface->cfg, "cfm_interval",
3148 s.ccm_vlan = atoi(get_interface_other_config(iface->cfg, "cfm_ccm_vlan",
3150 if (s.interval <= 0) {
3154 extended_str = get_interface_other_config(iface->cfg, "cfm_extended",
3156 s.extended = !strcasecmp("true", extended_str);
3158 opstate_str = get_interface_other_config(iface->cfg, "cfm_opstate", "up");
3159 s.opup = !strcasecmp("up", opstate_str);
3161 ofproto_port_set_cfm(iface->port->bridge->ofproto, iface->ofp_port, &s);
3164 /* Returns true if 'iface' is synthetic, that is, if we constructed it locally
3165 * instead of obtaining it from the database. */
3167 iface_is_synthetic(const struct iface *iface)
3169 return ovsdb_idl_row_is_synthetic(&iface->cfg->header_);
3172 /* Port mirroring. */
3174 static struct mirror *
3175 mirror_find_by_uuid(struct bridge *br, const struct uuid *uuid)
3179 HMAP_FOR_EACH_IN_BUCKET (m, hmap_node, uuid_hash(uuid), &br->mirrors) {
3180 if (uuid_equals(uuid, &m->uuid)) {
3188 bridge_configure_mirrors(struct bridge *br)
3190 const struct ovsdb_datum *mc;
3191 unsigned long *flood_vlans;
3192 struct mirror *m, *next;
3195 /* Get rid of deleted mirrors. */
3196 mc = ovsrec_bridge_get_mirrors(br->cfg, OVSDB_TYPE_UUID);
3197 HMAP_FOR_EACH_SAFE (m, next, hmap_node, &br->mirrors) {
3198 union ovsdb_atom atom;
3200 atom.uuid = m->uuid;
3201 if (ovsdb_datum_find_key(mc, &atom, OVSDB_TYPE_UUID) == UINT_MAX) {
3206 /* Add new mirrors and reconfigure existing ones. */
3207 for (i = 0; i < br->cfg->n_mirrors; i++) {
3208 const struct ovsrec_mirror *cfg = br->cfg->mirrors[i];
3209 struct mirror *m = mirror_find_by_uuid(br, &cfg->header_.uuid);
3211 m = mirror_create(br, cfg);
3214 if (!mirror_configure(m)) {
3219 /* Update flooded vlans (for RSPAN). */
3220 flood_vlans = vlan_bitmap_from_array(br->cfg->flood_vlans,
3221 br->cfg->n_flood_vlans);
3222 ofproto_set_flood_vlans(br->ofproto, flood_vlans);
3223 bitmap_free(flood_vlans);
3226 static struct mirror *
3227 mirror_create(struct bridge *br, const struct ovsrec_mirror *cfg)
3231 m = xzalloc(sizeof *m);
3232 m->uuid = cfg->header_.uuid;
3233 hmap_insert(&br->mirrors, &m->hmap_node, uuid_hash(&m->uuid));
3235 m->name = xstrdup(cfg->name);
3241 mirror_destroy(struct mirror *m)
3244 struct bridge *br = m->bridge;
3247 ofproto_mirror_unregister(br->ofproto, m);
3250 hmap_remove(&br->mirrors, &m->hmap_node);
3257 mirror_collect_ports(struct mirror *m,
3258 struct ovsrec_port **in_ports, int n_in_ports,
3259 void ***out_portsp, size_t *n_out_portsp)
3261 void **out_ports = xmalloc(n_in_ports * sizeof *out_ports);
3262 size_t n_out_ports = 0;
3265 for (i = 0; i < n_in_ports; i++) {
3266 const char *name = in_ports[i]->name;
3267 struct port *port = port_lookup(m->bridge, name);
3269 out_ports[n_out_ports++] = port;
3271 VLOG_WARN("bridge %s: mirror %s cannot match on nonexistent "
3272 "port %s", m->bridge->name, m->name, name);
3275 *out_portsp = out_ports;
3276 *n_out_portsp = n_out_ports;
3280 mirror_configure(struct mirror *m)
3282 const struct ovsrec_mirror *cfg = m->cfg;
3283 struct ofproto_mirror_settings s;
3286 if (strcmp(cfg->name, m->name)) {
3288 m->name = xstrdup(cfg->name);
3292 /* Get output port or VLAN. */
3293 if (cfg->output_port) {
3294 s.out_bundle = port_lookup(m->bridge, cfg->output_port->name);
3295 if (!s.out_bundle) {
3296 VLOG_ERR("bridge %s: mirror %s outputs to port not on bridge",
3297 m->bridge->name, m->name);
3300 s.out_vlan = UINT16_MAX;
3302 if (cfg->output_vlan) {
3303 VLOG_ERR("bridge %s: mirror %s specifies both output port and "
3304 "output vlan; ignoring output vlan",
3305 m->bridge->name, m->name);
3307 } else if (cfg->output_vlan) {
3308 /* The database should prevent invalid VLAN values. */
3309 s.out_bundle = NULL;
3310 s.out_vlan = *cfg->output_vlan;
3312 VLOG_ERR("bridge %s: mirror %s does not specify output; ignoring",
3313 m->bridge->name, m->name);
3317 /* Get port selection. */
3318 if (cfg->select_all) {
3319 size_t n_ports = hmap_count(&m->bridge->ports);
3320 void **ports = xmalloc(n_ports * sizeof *ports);
3325 HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) {
3335 /* Get ports, dropping ports that don't exist.
3336 * The IDL ensures that there are no duplicates. */
3337 mirror_collect_ports(m, cfg->select_src_port, cfg->n_select_src_port,
3338 &s.srcs, &s.n_srcs);
3339 mirror_collect_ports(m, cfg->select_dst_port, cfg->n_select_dst_port,
3340 &s.dsts, &s.n_dsts);
3343 /* Get VLAN selection. */
3344 s.src_vlans = vlan_bitmap_from_array(cfg->select_vlan, cfg->n_select_vlan);
3347 ofproto_mirror_register(m->bridge->ofproto, m, &s);
3350 if (s.srcs != s.dsts) {
3359 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
3361 * This is deprecated. It is only for compatibility with broken device drivers
3362 * in old versions of Linux that do not properly support VLANs when VLAN
3363 * devices are not used. When broken device drivers are no longer in
3364 * widespread use, we will delete these interfaces. */
3366 static void **blocks;
3367 static size_t n_blocks, allocated_blocks;
3369 /* Adds 'block' to a list of blocks that have to be freed with free() when the
3370 * VLAN splinters are reconfigured. */
3372 register_block(void *block)
3374 if (n_blocks >= allocated_blocks) {
3375 blocks = x2nrealloc(blocks, &allocated_blocks, sizeof *blocks);
3377 blocks[n_blocks++] = block;
3380 /* Frees all of the blocks registered with register_block(). */
3382 free_registered_blocks(void)
3386 for (i = 0; i < n_blocks; i++) {
3392 /* Returns true if VLAN splinters are enabled on 'iface_cfg', false
3395 vlan_splinters_is_enabled(const struct ovsrec_interface *iface_cfg)
3399 value = get_interface_other_config(iface_cfg, "enable-vlan-splinters", "");
3400 return !strcmp(value, "true");
3403 /* Figures out the set of VLANs that are in use for the purpose of VLAN
3406 * If VLAN splinters are enabled on at least one interface and any VLANs are in
3407 * use, returns a 4096-bit bitmap with a 1-bit for each in-use VLAN (bits 0 and
3408 * 4095 will not be set). The caller is responsible for freeing the bitmap,
3411 * If VLANs splinters are not enabled on any interface or if no VLANs are in
3412 * use, returns NULL.
3414 * Updates 'vlan_splinters_enabled_anywhere'. */
3415 static unsigned long int *
3416 collect_splinter_vlans(const struct ovsrec_open_vswitch *ovs_cfg)
3418 unsigned long int *splinter_vlans;
3419 struct sset splinter_ifaces;
3420 const char *real_dev_name;
3421 struct shash *real_devs;
3422 struct shash_node *node;
3426 /* Free space allocated for synthesized ports and interfaces, since we're
3427 * in the process of reconstructing all of them. */
3428 free_registered_blocks();
3430 splinter_vlans = bitmap_allocate(4096);
3431 sset_init(&splinter_ifaces);
3432 vlan_splinters_enabled_anywhere = false;
3433 for (i = 0; i < ovs_cfg->n_bridges; i++) {
3434 struct ovsrec_bridge *br_cfg = ovs_cfg->bridges[i];
3437 for (j = 0; j < br_cfg->n_ports; j++) {
3438 struct ovsrec_port *port_cfg = br_cfg->ports[j];
3441 for (k = 0; k < port_cfg->n_interfaces; k++) {
3442 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[k];
3444 if (vlan_splinters_is_enabled(iface_cfg)) {
3445 vlan_splinters_enabled_anywhere = true;
3446 sset_add(&splinter_ifaces, iface_cfg->name);
3447 vlan_bitmap_from_array__(port_cfg->trunks,
3453 if (port_cfg->tag && *port_cfg->tag > 0 && *port_cfg->tag < 4095) {
3454 bitmap_set1(splinter_vlans, *port_cfg->tag);
3459 if (!vlan_splinters_enabled_anywhere) {
3460 free(splinter_vlans);
3461 sset_destroy(&splinter_ifaces);
3465 HMAP_FOR_EACH (br, node, &all_bridges) {
3467 ofproto_get_vlan_usage(br->ofproto, splinter_vlans);
3471 /* Don't allow VLANs 0 or 4095 to be splintered. VLAN 0 should appear on
3472 * the real device. VLAN 4095 is reserved and Linux doesn't allow a VLAN
3473 * device to be created for it. */
3474 bitmap_set0(splinter_vlans, 0);
3475 bitmap_set0(splinter_vlans, 4095);
3477 /* Delete all VLAN devices that we don't need. */
3479 real_devs = vlandev_get_real_devs();
3480 SHASH_FOR_EACH (node, real_devs) {
3481 const struct vlan_real_dev *real_dev = node->data;
3482 const struct vlan_dev *vlan_dev;
3483 bool real_dev_has_splinters;
3485 real_dev_has_splinters = sset_contains(&splinter_ifaces,
3487 HMAP_FOR_EACH (vlan_dev, hmap_node, &real_dev->vlan_devs) {
3488 if (!real_dev_has_splinters
3489 || !bitmap_is_set(splinter_vlans, vlan_dev->vid)) {
3490 struct netdev *netdev;
3492 if (!netdev_open(vlan_dev->name, "system", &netdev)) {
3493 if (!netdev_get_in4(netdev, NULL, NULL) ||
3494 !netdev_get_in6(netdev, NULL)) {
3495 vlandev_del(vlan_dev->name);
3497 /* It has an IP address configured, so we don't own
3498 * it. Don't delete it. */
3500 netdev_close(netdev);
3507 /* Add all VLAN devices that we need. */
3508 SSET_FOR_EACH (real_dev_name, &splinter_ifaces) {
3511 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
3512 if (!vlandev_get_name(real_dev_name, vid)) {
3513 vlandev_add(real_dev_name, vid);
3520 sset_destroy(&splinter_ifaces);
3522 if (bitmap_scan(splinter_vlans, 0, 4096) >= 4096) {
3523 free(splinter_vlans);
3526 return splinter_vlans;
3529 /* Pushes the configure of VLAN splinter port 'port' (e.g. eth0.9) down to
3532 configure_splinter_port(struct port *port)
3534 struct ofproto *ofproto = port->bridge->ofproto;
3535 uint16_t realdev_ofp_port;
3536 const char *realdev_name;
3537 struct iface *vlandev, *realdev;
3539 ofproto_bundle_unregister(port->bridge->ofproto, port);
3541 vlandev = CONTAINER_OF(list_front(&port->ifaces), struct iface,
3544 realdev_name = get_port_other_config(port->cfg, "realdev", NULL);
3545 realdev = iface_lookup(port->bridge, realdev_name);
3546 realdev_ofp_port = realdev ? realdev->ofp_port : 0;
3548 ofproto_port_set_realdev(ofproto, vlandev->ofp_port, realdev_ofp_port,
3552 static struct ovsrec_port *
3553 synthesize_splinter_port(const char *real_dev_name,
3554 const char *vlan_dev_name, int vid)
3556 struct ovsrec_interface *iface;
3557 struct ovsrec_port *port;
3559 iface = xzalloc(sizeof *iface);
3560 iface->name = xstrdup(vlan_dev_name);
3561 iface->type = "system";
3563 port = xzalloc(sizeof *port);
3564 port->interfaces = xmemdup(&iface, sizeof iface);
3565 port->n_interfaces = 1;
3566 port->name = xstrdup(vlan_dev_name);
3567 port->vlan_mode = "splinter";
3568 port->tag = xmalloc(sizeof *port->tag);
3570 port->key_other_config = xmalloc(sizeof *port->key_other_config);
3571 port->key_other_config[0] = "realdev";
3572 port->value_other_config = xmalloc(sizeof *port->value_other_config);
3573 port->value_other_config[0] = xstrdup(real_dev_name);
3574 port->n_other_config = 1;
3576 register_block(iface);
3577 register_block(iface->name);
3578 register_block(port);
3579 register_block(port->interfaces);
3580 register_block(port->name);
3581 register_block(port->tag);
3582 register_block(port->key_other_config);
3583 register_block(port->value_other_config);
3584 register_block(port->value_other_config[0]);
3589 /* For each interface with 'br' that has VLAN splinters enabled, adds a
3590 * corresponding ovsrec_port to 'ports' for each splinter VLAN marked with a
3591 * 1-bit in the 'splinter_vlans' bitmap. */
3593 add_vlan_splinter_ports(struct bridge *br,
3594 const unsigned long int *splinter_vlans,
3595 struct shash *ports)
3599 /* We iterate through 'br->cfg->ports' instead of 'ports' here because
3600 * we're modifying 'ports'. */
3601 for (i = 0; i < br->cfg->n_ports; i++) {
3602 const char *name = br->cfg->ports[i]->name;
3603 struct ovsrec_port *port_cfg = shash_find_data(ports, name);
3606 for (j = 0; j < port_cfg->n_interfaces; j++) {
3607 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[j];
3609 if (vlan_splinters_is_enabled(iface_cfg)) {
3610 const char *real_dev_name;
3613 real_dev_name = iface_cfg->name;
3614 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
3615 const char *vlan_dev_name;
3617 vlan_dev_name = vlandev_get_name(real_dev_name, vid);
3619 && !shash_find(ports, vlan_dev_name)) {
3620 shash_add(ports, vlan_dev_name,
3621 synthesize_splinter_port(
3622 real_dev_name, vlan_dev_name, vid));
3631 mirror_refresh_stats(struct mirror *m)
3633 struct ofproto *ofproto = m->bridge->ofproto;
3634 uint64_t tx_packets, tx_bytes;
3637 size_t stat_cnt = 0;
3639 if (ofproto_mirror_get_stats(ofproto, m, &tx_packets, &tx_bytes)) {
3640 ovsrec_mirror_set_statistics(m->cfg, NULL, NULL, 0);
3644 if (tx_packets != UINT64_MAX) {
3645 keys[stat_cnt] = "tx_packets";
3646 values[stat_cnt] = tx_packets;
3649 if (tx_bytes != UINT64_MAX) {
3650 keys[stat_cnt] = "tx_bytes";
3651 values[stat_cnt] = tx_bytes;
3655 ovsrec_mirror_set_statistics(m->cfg, keys, values, stat_cnt);