1 /* Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira Networks
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
28 #include "dynamic-string.h"
35 #include "mac-learning.h"
36 #include "meta-flow.h"
38 #include "ofp-print.h"
40 #include "ofproto/ofproto.h"
41 #include "poll-loop.h"
44 #include "socket-util.h"
46 #include "stream-ssl.h"
48 #include "system-stats.h"
53 #include "vswitchd/vswitch-idl.h"
54 #include "xenserver.h"
56 #include "sflow_api.h"
57 #include "vlan-bitmap.h"
59 VLOG_DEFINE_THIS_MODULE(bridge);
61 COVERAGE_DEFINE(bridge_reconfigure);
64 /* These members are always valid. */
65 struct list port_elem; /* Element in struct port's "ifaces" list. */
66 struct hmap_node name_node; /* In struct bridge's "iface_by_name" hmap. */
67 struct port *port; /* Containing port. */
68 char *name; /* Host network device name. */
69 tag_type tag; /* Tag associated with this interface. */
71 /* These members are valid only after bridge_reconfigure() causes them to
73 struct hmap_node ofp_port_node; /* In struct bridge's "ifaces" hmap. */
74 int ofp_port; /* OpenFlow port number, -1 if unknown. */
75 struct netdev *netdev; /* Network device. */
76 const char *type; /* Usually same as cfg->type. */
77 const struct ovsrec_interface *cfg;
81 struct uuid uuid; /* UUID of this "mirror" record in database. */
82 struct hmap_node hmap_node; /* In struct bridge's "mirrors" hmap. */
83 struct bridge *bridge;
85 const struct ovsrec_mirror *cfg;
89 struct bridge *bridge;
90 struct hmap_node hmap_node; /* Element in struct bridge's "ports" hmap. */
93 const struct ovsrec_port *cfg;
95 /* An ordinary bridge port has 1 interface.
96 * A bridge port for bonding has at least 2 interfaces. */
97 struct list ifaces; /* List of "struct iface"s. */
101 struct hmap_node node; /* In 'all_bridges'. */
102 char *name; /* User-specified arbitrary name. */
103 char *type; /* Datapath type. */
104 uint8_t ea[ETH_ADDR_LEN]; /* Bridge Ethernet Address. */
105 uint8_t default_ea[ETH_ADDR_LEN]; /* Default MAC. */
106 const struct ovsrec_bridge *cfg;
108 /* OpenFlow switch processing. */
109 struct ofproto *ofproto; /* OpenFlow switch. */
112 struct hmap ports; /* "struct port"s indexed by name. */
113 struct hmap ifaces; /* "struct iface"s indexed by ofp_port. */
114 struct hmap iface_by_name; /* "struct iface"s indexed by name. */
116 /* Port mirroring. */
117 struct hmap mirrors; /* "struct mirror" indexed by UUID. */
119 /* Synthetic local port if necessary. */
120 struct ovsrec_port synth_local_port;
121 struct ovsrec_interface synth_local_iface;
122 struct ovsrec_interface *synth_local_ifacep;
125 /* All bridges, indexed by name. */
126 static struct hmap all_bridges = HMAP_INITIALIZER(&all_bridges);
128 /* OVSDB IDL used to obtain configuration. */
129 static struct ovsdb_idl *idl;
131 /* Each time this timer expires, the bridge fetches systems and interface
132 * statistics and pushes them into the database. */
133 #define STATS_INTERVAL (5 * 1000) /* In milliseconds. */
134 static long long int stats_timer = LLONG_MIN;
136 /* Stores the time after which rate limited statistics may be written to the
137 * database. Only updated when changes to the database require rate limiting.
139 #define DB_LIMIT_INTERVAL (1 * 1000) /* In milliseconds. */
140 static long long int db_limiter = LLONG_MIN;
142 static void add_del_bridges(const struct ovsrec_open_vswitch *);
143 static void bridge_del_ofprotos(void);
144 static bool bridge_add_ofprotos(struct bridge *);
145 static void bridge_create(const struct ovsrec_bridge *);
146 static void bridge_destroy(struct bridge *);
147 static struct bridge *bridge_lookup(const char *name);
148 static unixctl_cb_func bridge_unixctl_dump_flows;
149 static unixctl_cb_func bridge_unixctl_reconnect;
150 static size_t bridge_get_controllers(const struct bridge *br,
151 struct ovsrec_controller ***controllersp);
152 static void bridge_add_del_ports(struct bridge *,
153 const unsigned long int *splinter_vlans);
154 static void bridge_add_ofproto_ports(struct bridge *);
155 static void bridge_del_ofproto_ports(struct bridge *);
156 static void bridge_refresh_ofp_port(struct bridge *);
157 static void bridge_configure_datapath_id(struct bridge *);
158 static void bridge_configure_flow_eviction_threshold(struct bridge *);
159 static void bridge_configure_netflow(struct bridge *);
160 static void bridge_configure_forward_bpdu(struct bridge *);
161 static void bridge_configure_mac_idle_time(struct bridge *);
162 static void bridge_configure_sflow(struct bridge *, int *sflow_bridge_number);
163 static void bridge_configure_stp(struct bridge *);
164 static void bridge_configure_tables(struct bridge *);
165 static void bridge_configure_remotes(struct bridge *,
166 const struct sockaddr_in *managers,
168 static void bridge_pick_local_hw_addr(struct bridge *,
169 uint8_t ea[ETH_ADDR_LEN],
170 struct iface **hw_addr_iface);
171 static uint64_t bridge_pick_datapath_id(struct bridge *,
172 const uint8_t bridge_ea[ETH_ADDR_LEN],
173 struct iface *hw_addr_iface);
174 static const char *bridge_get_other_config(const struct ovsrec_bridge *,
176 static const char *get_port_other_config(const struct ovsrec_port *,
178 const char *default_value);
179 static uint64_t dpid_from_hash(const void *, size_t nbytes);
180 static bool bridge_has_bond_fake_iface(const struct bridge *,
182 static bool port_is_bond_fake_iface(const struct port *);
184 static unixctl_cb_func qos_unixctl_show;
186 static struct port *port_create(struct bridge *, const struct ovsrec_port *);
187 static void port_add_ifaces(struct port *);
188 static void port_del_ifaces(struct port *);
189 static void port_destroy(struct port *);
190 static struct port *port_lookup(const struct bridge *, const char *name);
191 static void port_configure(struct port *);
192 static struct lacp_settings *port_configure_lacp(struct port *,
193 struct lacp_settings *);
194 static void port_configure_bond(struct port *, struct bond_settings *,
195 uint32_t *bond_stable_ids);
196 static bool port_is_synthetic(const struct port *);
198 static void bridge_configure_mirrors(struct bridge *);
199 static struct mirror *mirror_create(struct bridge *,
200 const struct ovsrec_mirror *);
201 static void mirror_destroy(struct mirror *);
202 static bool mirror_configure(struct mirror *);
203 static void mirror_refresh_stats(struct mirror *);
205 static void iface_configure_lacp(struct iface *, struct lacp_slave_settings *);
206 static struct iface *iface_create(struct port *port,
207 const struct ovsrec_interface *if_cfg);
208 static void iface_destroy(struct iface *);
209 static struct iface *iface_lookup(const struct bridge *, const char *name);
210 static struct iface *iface_find(const char *name);
211 static struct iface *iface_from_ofp_port(const struct bridge *,
213 static void iface_set_mac(struct iface *);
214 static void iface_set_ofport(const struct ovsrec_interface *, int64_t ofport);
215 static void iface_clear_db_record(const struct ovsrec_interface *if_cfg);
216 static void iface_configure_qos(struct iface *, const struct ovsrec_qos *);
217 static void iface_configure_cfm(struct iface *);
218 static void iface_refresh_cfm_stats(struct iface *);
219 static void iface_refresh_stats(struct iface *);
220 static void iface_refresh_status(struct iface *);
221 static bool iface_is_synthetic(const struct iface *);
222 static const char *get_interface_other_config(const struct ovsrec_interface *,
224 const char *default_value);
226 static void shash_from_ovs_idl_map(char **keys, char **values, size_t n,
228 static void shash_to_ovs_idl_map(struct shash *,
229 char ***keys, char ***values, size_t *n);
231 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
233 * This is deprecated. It is only for compatibility with broken device drivers
234 * in old versions of Linux that do not properly support VLANs when VLAN
235 * devices are not used. When broken device drivers are no longer in
236 * widespread use, we will delete these interfaces. */
238 /* True if VLAN splinters are enabled on any interface, false otherwise.*/
239 static bool vlan_splinters_enabled_anywhere;
241 static bool vlan_splinters_is_enabled(const struct ovsrec_interface *);
242 static unsigned long int *collect_splinter_vlans(
243 const struct ovsrec_open_vswitch *);
244 static void configure_splinter_port(struct port *);
245 static void add_vlan_splinter_ports(struct bridge *,
246 const unsigned long int *splinter_vlans,
247 struct shash *ports);
249 /* Public functions. */
251 /* Initializes the bridge module, configuring it to obtain its configuration
252 * from an OVSDB server accessed over 'remote', which should be a string in a
253 * form acceptable to ovsdb_idl_create(). */
255 bridge_init(const char *remote)
257 /* Create connection to database. */
258 idl = ovsdb_idl_create(remote, &ovsrec_idl_class, true);
259 ovsdb_idl_set_lock(idl, "ovs_vswitchd");
261 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_cur_cfg);
262 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_statistics);
263 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_external_ids);
264 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_ovs_version);
265 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_db_version);
266 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_type);
267 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_version);
269 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_datapath_id);
270 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_status);
271 ovsdb_idl_omit(idl, &ovsrec_bridge_col_external_ids);
273 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_status);
274 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_statistics);
275 ovsdb_idl_omit(idl, &ovsrec_port_col_external_ids);
276 ovsdb_idl_omit(idl, &ovsrec_port_col_fake_bridge);
278 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_admin_state);
279 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_duplex);
280 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_speed);
281 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_state);
282 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_resets);
283 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mtu);
284 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ofport);
285 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_statistics);
286 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_status);
287 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault);
288 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_remote_mpids);
289 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_lacp_current);
290 ovsdb_idl_omit(idl, &ovsrec_interface_col_external_ids);
292 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_is_connected);
293 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_role);
294 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_status);
295 ovsdb_idl_omit(idl, &ovsrec_controller_col_external_ids);
297 ovsdb_idl_omit(idl, &ovsrec_qos_col_external_ids);
299 ovsdb_idl_omit(idl, &ovsrec_queue_col_external_ids);
301 ovsdb_idl_omit(idl, &ovsrec_mirror_col_external_ids);
302 ovsdb_idl_omit_alert(idl, &ovsrec_mirror_col_statistics);
304 ovsdb_idl_omit(idl, &ovsrec_netflow_col_external_ids);
306 ovsdb_idl_omit(idl, &ovsrec_sflow_col_external_ids);
308 ovsdb_idl_omit(idl, &ovsrec_manager_col_external_ids);
309 ovsdb_idl_omit(idl, &ovsrec_manager_col_inactivity_probe);
310 ovsdb_idl_omit(idl, &ovsrec_manager_col_is_connected);
311 ovsdb_idl_omit(idl, &ovsrec_manager_col_max_backoff);
312 ovsdb_idl_omit(idl, &ovsrec_manager_col_status);
314 ovsdb_idl_omit(idl, &ovsrec_ssl_col_external_ids);
316 /* Register unixctl commands. */
317 unixctl_command_register("qos/show", "interface", 1, 1,
318 qos_unixctl_show, NULL);
319 unixctl_command_register("bridge/dump-flows", "bridge", 1, 1,
320 bridge_unixctl_dump_flows, NULL);
321 unixctl_command_register("bridge/reconnect", "[bridge]", 0, 1,
322 bridge_unixctl_reconnect, NULL);
332 struct bridge *br, *next_br;
334 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
337 ovsdb_idl_destroy(idl);
340 /* Looks at the list of managers in 'ovs_cfg' and extracts their remote IP
341 * addresses and ports into '*managersp' and '*n_managersp'. The caller is
342 * responsible for freeing '*managersp' (with free()).
344 * You may be asking yourself "why does ovs-vswitchd care?", because
345 * ovsdb-server is responsible for connecting to the managers, and ovs-vswitchd
346 * should not be and in fact is not directly involved in that. But
347 * ovs-vswitchd needs to make sure that ovsdb-server can reach the managers, so
348 * it has to tell in-band control where the managers are to enable that.
349 * (Thus, only managers connected in-band are collected.)
352 collect_in_band_managers(const struct ovsrec_open_vswitch *ovs_cfg,
353 struct sockaddr_in **managersp, size_t *n_managersp)
355 struct sockaddr_in *managers = NULL;
356 size_t n_managers = 0;
360 /* Collect all of the potential targets from the "targets" columns of the
361 * rows pointed to by "manager_options", excluding any that are
364 for (i = 0; i < ovs_cfg->n_manager_options; i++) {
365 struct ovsrec_manager *m = ovs_cfg->manager_options[i];
367 if (m->connection_mode && !strcmp(m->connection_mode, "out-of-band")) {
368 sset_find_and_delete(&targets, m->target);
370 sset_add(&targets, m->target);
374 /* Now extract the targets' IP addresses. */
375 if (!sset_is_empty(&targets)) {
378 managers = xmalloc(sset_count(&targets) * sizeof *managers);
379 SSET_FOR_EACH (target, &targets) {
380 struct sockaddr_in *sin = &managers[n_managers];
382 if (stream_parse_target_with_default_ports(target,
390 sset_destroy(&targets);
392 *managersp = managers;
393 *n_managersp = n_managers;
397 bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
399 unsigned long int *splinter_vlans;
400 struct sockaddr_in *managers;
401 struct bridge *br, *next;
402 int sflow_bridge_number;
405 COVERAGE_INC(bridge_reconfigure);
407 /* Create and destroy "struct bridge"s, "struct port"s, and "struct
408 * iface"s according to 'ovs_cfg', with only very minimal configuration
411 * This is mostly an update to bridge data structures. Very little is
412 * pushed down to ofproto or lower layers. */
413 add_del_bridges(ovs_cfg);
414 splinter_vlans = collect_splinter_vlans(ovs_cfg);
415 HMAP_FOR_EACH (br, node, &all_bridges) {
416 bridge_add_del_ports(br, splinter_vlans);
418 free(splinter_vlans);
420 /* Delete all datapaths and datapath ports that are no longer configured.
422 * The kernel will reject any attempt to add a given port to a datapath if
423 * that port already belongs to a different datapath, so we must do all
424 * port deletions before any port additions. A datapath always has a
425 * "local port" so we must delete not-configured datapaths too. */
426 bridge_del_ofprotos();
427 HMAP_FOR_EACH (br, node, &all_bridges) {
429 bridge_del_ofproto_ports(br);
433 /* Create datapaths and datapath ports that are missing.
435 * After this is done, we have our final set of bridges, ports, and
436 * interfaces. Every "struct bridge" has an ofproto, every "struct port"
437 * has at least one iface, every "struct iface" has a valid ofp_port and
439 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
440 if (!br->ofproto && !bridge_add_ofprotos(br)) {
444 HMAP_FOR_EACH (br, node, &all_bridges) {
445 bridge_refresh_ofp_port(br);
446 bridge_add_ofproto_ports(br);
449 /* Complete the configuration. */
450 sflow_bridge_number = 0;
451 collect_in_band_managers(ovs_cfg, &managers, &n_managers);
452 HMAP_FOR_EACH (br, node, &all_bridges) {
455 /* We need the datapath ID early to allow LACP ports to use it as the
456 * default system ID. */
457 bridge_configure_datapath_id(br);
459 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
462 port_configure(port);
464 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
465 iface_configure_cfm(iface);
466 iface_configure_qos(iface, port->cfg->qos);
467 iface_set_mac(iface);
470 bridge_configure_mirrors(br);
471 bridge_configure_flow_eviction_threshold(br);
472 bridge_configure_forward_bpdu(br);
473 bridge_configure_mac_idle_time(br);
474 bridge_configure_remotes(br, managers, n_managers);
475 bridge_configure_netflow(br);
476 bridge_configure_sflow(br, &sflow_bridge_number);
477 bridge_configure_stp(br);
478 bridge_configure_tables(br);
482 /* ovs-vswitchd has completed initialization, so allow the process that
483 * forked us to exit successfully. */
484 daemonize_complete();
487 /* Iterate over all ofprotos and delete any of them that do not have a
488 * configured bridge or that are the wrong type. */
490 bridge_del_ofprotos(void)
498 ofproto_enumerate_types(&types);
499 SSET_FOR_EACH (type, &types) {
502 ofproto_enumerate_names(type, &names);
503 SSET_FOR_EACH (name, &names) {
504 struct bridge *br = bridge_lookup(name);
505 if (!br || strcmp(type, br->type)) {
506 ofproto_delete(name, type);
510 sset_destroy(&names);
511 sset_destroy(&types);
515 bridge_add_ofprotos(struct bridge *br)
517 int error = ofproto_create(br->name, br->type, &br->ofproto);
519 VLOG_ERR("failed to create bridge %s: %s", br->name, strerror(error));
526 port_configure(struct port *port)
528 const struct ovsrec_port *cfg = port->cfg;
529 struct bond_settings bond_settings;
530 struct lacp_settings lacp_settings;
531 struct ofproto_bundle_settings s;
534 if (cfg->vlan_mode && !strcmp(cfg->vlan_mode, "splinter")) {
535 configure_splinter_port(port);
544 s.slaves = xmalloc(list_size(&port->ifaces) * sizeof *s.slaves);
545 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
546 s.slaves[s.n_slaves++] = iface->ofp_port;
551 if (cfg->tag && *cfg->tag >= 0 && *cfg->tag <= 4095) {
555 /* Get VLAN trunks. */
558 s.trunks = vlan_bitmap_from_array(cfg->trunks, cfg->n_trunks);
562 if (cfg->vlan_mode) {
563 if (!strcmp(cfg->vlan_mode, "access")) {
564 s.vlan_mode = PORT_VLAN_ACCESS;
565 } else if (!strcmp(cfg->vlan_mode, "trunk")) {
566 s.vlan_mode = PORT_VLAN_TRUNK;
567 } else if (!strcmp(cfg->vlan_mode, "native-tagged")) {
568 s.vlan_mode = PORT_VLAN_NATIVE_TAGGED;
569 } else if (!strcmp(cfg->vlan_mode, "native-untagged")) {
570 s.vlan_mode = PORT_VLAN_NATIVE_UNTAGGED;
572 /* This "can't happen" because ovsdb-server should prevent it. */
573 VLOG_ERR("unknown VLAN mode %s", cfg->vlan_mode);
574 s.vlan_mode = PORT_VLAN_TRUNK;
578 s.vlan_mode = PORT_VLAN_ACCESS;
580 VLOG_ERR("port %s: ignoring trunks in favor of implicit vlan",
584 s.vlan_mode = PORT_VLAN_TRUNK;
587 s.use_priority_tags = !strcmp("true", get_port_other_config(
588 cfg, "priority-tags", ""));
590 /* Get LACP settings. */
591 s.lacp = port_configure_lacp(port, &lacp_settings);
595 s.lacp_slaves = xmalloc(s.n_slaves * sizeof *s.lacp_slaves);
596 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
597 iface_configure_lacp(iface, &s.lacp_slaves[i++]);
600 s.lacp_slaves = NULL;
603 /* Get bond settings. */
604 if (s.n_slaves > 1) {
605 s.bond = &bond_settings;
606 s.bond_stable_ids = xmalloc(s.n_slaves * sizeof *s.bond_stable_ids);
607 port_configure_bond(port, &bond_settings, s.bond_stable_ids);
610 s.bond_stable_ids = NULL;
612 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
613 netdev_set_miimon_interval(iface->netdev, 0);
618 ofproto_bundle_register(port->bridge->ofproto, port, &s);
624 free(s.bond_stable_ids);
627 /* Pick local port hardware address and datapath ID for 'br'. */
629 bridge_configure_datapath_id(struct bridge *br)
631 uint8_t ea[ETH_ADDR_LEN];
633 struct iface *local_iface;
634 struct iface *hw_addr_iface;
637 bridge_pick_local_hw_addr(br, ea, &hw_addr_iface);
638 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
640 int error = netdev_set_etheraddr(local_iface->netdev, ea);
642 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
643 VLOG_ERR_RL(&rl, "bridge %s: failed to set bridge "
644 "Ethernet address: %s",
645 br->name, strerror(error));
648 memcpy(br->ea, ea, ETH_ADDR_LEN);
650 dpid = bridge_pick_datapath_id(br, ea, hw_addr_iface);
651 ofproto_set_datapath_id(br->ofproto, dpid);
653 dpid_string = xasprintf("%016"PRIx64, dpid);
654 ovsrec_bridge_set_datapath_id(br->cfg, dpid_string);
658 /* Set NetFlow configuration on 'br'. */
660 bridge_configure_netflow(struct bridge *br)
662 struct ovsrec_netflow *cfg = br->cfg->netflow;
663 struct netflow_options opts;
666 ofproto_set_netflow(br->ofproto, NULL);
670 memset(&opts, 0, sizeof opts);
672 /* Get default NetFlow configuration from datapath.
673 * Apply overrides from 'cfg'. */
674 ofproto_get_netflow_ids(br->ofproto, &opts.engine_type, &opts.engine_id);
675 if (cfg->engine_type) {
676 opts.engine_type = *cfg->engine_type;
678 if (cfg->engine_id) {
679 opts.engine_id = *cfg->engine_id;
682 /* Configure active timeout interval. */
683 opts.active_timeout = cfg->active_timeout;
684 if (!opts.active_timeout) {
685 opts.active_timeout = -1;
686 } else if (opts.active_timeout < 0) {
687 VLOG_WARN("bridge %s: active timeout interval set to negative "
688 "value, using default instead (%d seconds)", br->name,
689 NF_ACTIVE_TIMEOUT_DEFAULT);
690 opts.active_timeout = -1;
693 /* Add engine ID to interface number to disambiguate bridgs? */
694 opts.add_id_to_iface = cfg->add_id_to_interface;
695 if (opts.add_id_to_iface) {
696 if (opts.engine_id > 0x7f) {
697 VLOG_WARN("bridge %s: NetFlow port mangling may conflict with "
698 "another vswitch, choose an engine id less than 128",
701 if (hmap_count(&br->ports) > 508) {
702 VLOG_WARN("bridge %s: NetFlow port mangling will conflict with "
703 "another port when more than 508 ports are used",
709 sset_init(&opts.collectors);
710 sset_add_array(&opts.collectors, cfg->targets, cfg->n_targets);
713 if (ofproto_set_netflow(br->ofproto, &opts)) {
714 VLOG_ERR("bridge %s: problem setting netflow collectors", br->name);
716 sset_destroy(&opts.collectors);
719 /* Set sFlow configuration on 'br'. */
721 bridge_configure_sflow(struct bridge *br, int *sflow_bridge_number)
723 const struct ovsrec_sflow *cfg = br->cfg->sflow;
724 struct ovsrec_controller **controllers;
725 struct ofproto_sflow_options oso;
726 size_t n_controllers;
730 ofproto_set_sflow(br->ofproto, NULL);
734 memset(&oso, 0, sizeof oso);
736 sset_init(&oso.targets);
737 sset_add_array(&oso.targets, cfg->targets, cfg->n_targets);
739 oso.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
741 oso.sampling_rate = *cfg->sampling;
744 oso.polling_interval = SFL_DEFAULT_POLLING_INTERVAL;
746 oso.polling_interval = *cfg->polling;
749 oso.header_len = SFL_DEFAULT_HEADER_SIZE;
751 oso.header_len = *cfg->header;
754 oso.sub_id = (*sflow_bridge_number)++;
755 oso.agent_device = cfg->agent;
757 oso.control_ip = NULL;
758 n_controllers = bridge_get_controllers(br, &controllers);
759 for (i = 0; i < n_controllers; i++) {
760 if (controllers[i]->local_ip) {
761 oso.control_ip = controllers[i]->local_ip;
765 ofproto_set_sflow(br->ofproto, &oso);
767 sset_destroy(&oso.targets);
771 port_configure_stp(const struct ofproto *ofproto, struct port *port,
772 struct ofproto_port_stp_settings *port_s,
773 int *port_num_counter, unsigned long *port_num_bitmap)
775 const char *config_str;
778 config_str = get_port_other_config(port->cfg, "stp-enable", NULL);
779 if (config_str && !strcmp(config_str, "false")) {
780 port_s->enable = false;
783 port_s->enable = true;
786 /* STP over bonds is not supported. */
787 if (!list_is_singleton(&port->ifaces)) {
788 VLOG_ERR("port %s: cannot enable STP on bonds, disabling",
790 port_s->enable = false;
794 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
796 /* Internal ports shouldn't participate in spanning tree, so
798 if (!strcmp(iface->type, "internal")) {
799 VLOG_DBG("port %s: disable STP on internal ports", port->name);
800 port_s->enable = false;
804 /* STP on mirror output ports is not supported. */
805 if (ofproto_is_mirror_output_bundle(ofproto, port)) {
806 VLOG_DBG("port %s: disable STP on mirror ports", port->name);
807 port_s->enable = false;
811 config_str = get_port_other_config(port->cfg, "stp-port-num", NULL);
813 unsigned long int port_num = strtoul(config_str, NULL, 0);
814 int port_idx = port_num - 1;
816 if (port_num < 1 || port_num > STP_MAX_PORTS) {
817 VLOG_ERR("port %s: invalid stp-port-num", port->name);
818 port_s->enable = false;
822 if (bitmap_is_set(port_num_bitmap, port_idx)) {
823 VLOG_ERR("port %s: duplicate stp-port-num %lu, disabling",
824 port->name, port_num);
825 port_s->enable = false;
828 bitmap_set1(port_num_bitmap, port_idx);
829 port_s->port_num = port_idx;
831 if (*port_num_counter > STP_MAX_PORTS) {
832 VLOG_ERR("port %s: too many STP ports, disabling", port->name);
833 port_s->enable = false;
837 port_s->port_num = (*port_num_counter)++;
840 config_str = get_port_other_config(port->cfg, "stp-path-cost", NULL);
842 port_s->path_cost = strtoul(config_str, NULL, 10);
846 if (netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL)) {
847 /* Couldn't get speed, so assume 100Mb/s. */
848 port_s->path_cost = 19;
852 mbps = netdev_features_to_bps(current) / 1000000;
853 port_s->path_cost = stp_convert_speed_to_cost(mbps);
857 config_str = get_port_other_config(port->cfg, "stp-port-priority", NULL);
859 port_s->priority = strtoul(config_str, NULL, 0);
861 port_s->priority = STP_DEFAULT_PORT_PRIORITY;
865 /* Set spanning tree configuration on 'br'. */
867 bridge_configure_stp(struct bridge *br)
869 if (!br->cfg->stp_enable) {
870 ofproto_set_stp(br->ofproto, NULL);
872 struct ofproto_stp_settings br_s;
873 const char *config_str;
875 int port_num_counter;
876 unsigned long *port_num_bitmap;
878 config_str = bridge_get_other_config(br->cfg, "stp-system-id");
880 uint8_t ea[ETH_ADDR_LEN];
882 if (eth_addr_from_string(config_str, ea)) {
883 br_s.system_id = eth_addr_to_uint64(ea);
885 br_s.system_id = eth_addr_to_uint64(br->ea);
886 VLOG_ERR("bridge %s: invalid stp-system-id, defaulting "
887 "to "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(br->ea));
890 br_s.system_id = eth_addr_to_uint64(br->ea);
893 config_str = bridge_get_other_config(br->cfg, "stp-priority");
895 br_s.priority = strtoul(config_str, NULL, 0);
897 br_s.priority = STP_DEFAULT_BRIDGE_PRIORITY;
900 config_str = bridge_get_other_config(br->cfg, "stp-hello-time");
902 br_s.hello_time = strtoul(config_str, NULL, 10) * 1000;
904 br_s.hello_time = STP_DEFAULT_HELLO_TIME;
907 config_str = bridge_get_other_config(br->cfg, "stp-max-age");
909 br_s.max_age = strtoul(config_str, NULL, 10) * 1000;
911 br_s.max_age = STP_DEFAULT_MAX_AGE;
914 config_str = bridge_get_other_config(br->cfg, "stp-forward-delay");
916 br_s.fwd_delay = strtoul(config_str, NULL, 10) * 1000;
918 br_s.fwd_delay = STP_DEFAULT_FWD_DELAY;
921 /* Configure STP on the bridge. */
922 if (ofproto_set_stp(br->ofproto, &br_s)) {
923 VLOG_ERR("bridge %s: could not enable STP", br->name);
927 /* Users must either set the port number with the "stp-port-num"
928 * configuration on all ports or none. If manual configuration
929 * is not done, then we allocate them sequentially. */
930 port_num_counter = 0;
931 port_num_bitmap = bitmap_allocate(STP_MAX_PORTS);
932 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
933 struct ofproto_port_stp_settings port_s;
936 port_configure_stp(br->ofproto, port, &port_s,
937 &port_num_counter, port_num_bitmap);
939 /* As bonds are not supported, just apply configuration to
941 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
942 if (ofproto_port_set_stp(br->ofproto, iface->ofp_port,
944 VLOG_ERR("port %s: could not enable STP", port->name);
950 if (bitmap_scan(port_num_bitmap, 0, STP_MAX_PORTS) != STP_MAX_PORTS
951 && port_num_counter) {
952 VLOG_ERR("bridge %s: must manually configure all STP port "
953 "IDs or none, disabling", br->name);
954 ofproto_set_stp(br->ofproto, NULL);
956 bitmap_free(port_num_bitmap);
961 bridge_has_bond_fake_iface(const struct bridge *br, const char *name)
963 const struct port *port = port_lookup(br, name);
964 return port && port_is_bond_fake_iface(port);
968 port_is_bond_fake_iface(const struct port *port)
970 return port->cfg->bond_fake_iface && !list_is_short(&port->ifaces);
974 add_del_bridges(const struct ovsrec_open_vswitch *cfg)
976 struct bridge *br, *next;
980 /* Collect new bridges' names and types. */
982 for (i = 0; i < cfg->n_bridges; i++) {
983 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
984 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
986 if (strchr(br_cfg->name, '/')) {
987 /* Prevent remote ovsdb-server users from accessing arbitrary
988 * directories, e.g. consider a bridge named "../../../etc/". */
989 VLOG_WARN_RL(&rl, "ignoring bridge with invalid name \"%s\"",
991 } else if (!shash_add_once(&new_br, br_cfg->name, br_cfg)) {
992 VLOG_WARN_RL(&rl, "bridge %s specified twice", br_cfg->name);
996 /* Get rid of deleted bridges or those whose types have changed.
997 * Update 'cfg' of bridges that still exist. */
998 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
999 br->cfg = shash_find_data(&new_br, br->name);
1000 if (!br->cfg || strcmp(br->type, ofproto_normalize_type(
1001 br->cfg->datapath_type))) {
1006 /* Add new bridges. */
1007 for (i = 0; i < cfg->n_bridges; i++) {
1008 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
1009 struct bridge *br = bridge_lookup(br_cfg->name);
1011 bridge_create(br_cfg);
1015 shash_destroy(&new_br);
1018 /* Delete each ofproto port on 'br' that doesn't have a corresponding "struct
1021 * The kernel will reject any attempt to add a given port to a datapath if that
1022 * port already belongs to a different datapath, so we must do all port
1023 * deletions before any port additions. */
1025 bridge_del_ofproto_ports(struct bridge *br)
1027 struct ofproto_port_dump dump;
1028 struct ofproto_port ofproto_port;
1030 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
1031 const char *name = ofproto_port.name;
1032 struct iface *iface;
1036 /* Ignore the local port. We can't change it anyhow. */
1037 if (!strcmp(name, br->name)) {
1041 /* Get the type that 'ofproto_port' should have (ordinarily the
1042 * type of its corresponding iface) or NULL if it should be
1044 iface = iface_lookup(br, name);
1045 type = (iface ? iface->type
1046 : bridge_has_bond_fake_iface(br, name) ? "internal"
1049 /* If it's the wrong type then delete the ofproto port. */
1051 && !strcmp(ofproto_port.type, type)
1052 && (!iface || !iface->netdev
1053 || !strcmp(netdev_get_type(iface->netdev), type))) {
1056 error = ofproto_port_del(br->ofproto, ofproto_port.ofp_port);
1058 VLOG_WARN("bridge %s: failed to remove %s interface (%s)",
1059 br->name, name, strerror(error));
1062 netdev_close(iface->netdev);
1063 iface->netdev = NULL;
1069 iface_set_ofp_port(struct iface *iface, int ofp_port)
1071 struct bridge *br = iface->port->bridge;
1073 assert(iface->ofp_port < 0 && ofp_port >= 0);
1074 iface->ofp_port = ofp_port;
1075 hmap_insert(&br->ifaces, &iface->ofp_port_node, hash_int(ofp_port, 0));
1076 iface_set_ofport(iface->cfg, ofp_port);
1080 bridge_refresh_ofp_port(struct bridge *br)
1082 struct ofproto_port_dump dump;
1083 struct ofproto_port ofproto_port;
1086 /* Clear all the "ofp_port"es. */
1087 hmap_clear(&br->ifaces);
1088 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1089 struct iface *iface;
1091 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1092 iface->ofp_port = -1;
1096 /* Obtain the correct "ofp_port"s from ofproto. */
1097 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
1098 struct iface *iface = iface_lookup(br, ofproto_port.name);
1100 if (iface->ofp_port >= 0) {
1101 VLOG_WARN("bridge %s: interface %s reported twice",
1102 br->name, ofproto_port.name);
1103 } else if (iface_from_ofp_port(br, ofproto_port.ofp_port)) {
1104 VLOG_WARN("bridge %s: interface %"PRIu16" reported twice",
1105 br->name, ofproto_port.ofp_port);
1107 iface_set_ofp_port(iface, ofproto_port.ofp_port);
1113 /* Add an ofproto port for any "struct iface" that doesn't have one.
1114 * Delete any "struct iface" for which this fails.
1115 * Delete any "struct port" that thereby ends up with no ifaces. */
1117 bridge_add_ofproto_ports(struct bridge *br)
1119 struct port *port, *next_port;
1121 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
1122 struct iface *iface, *next_iface;
1123 struct ofproto_port ofproto_port;
1125 LIST_FOR_EACH_SAFE (iface, next_iface, port_elem, &port->ifaces) {
1128 /* Open the netdev. */
1129 if (!iface->netdev) {
1130 error = netdev_open(iface->name, iface->type, &iface->netdev);
1132 VLOG_WARN("could not open network device %s (%s)",
1133 iface->name, strerror(error));
1137 && port->cfg->vlan_mode
1138 && !strcmp(port->cfg->vlan_mode, "splinter")) {
1139 netdev_turn_flags_on(iface->netdev, NETDEV_UP, true);
1145 /* Configure the netdev. */
1146 if (iface->netdev) {
1150 shash_from_ovs_idl_map(iface->cfg->key_options,
1151 iface->cfg->value_options,
1152 iface->cfg->n_options, &args);
1153 error = netdev_set_config(iface->netdev, &args);
1154 shash_destroy(&args);
1157 VLOG_WARN("could not configure network device %s (%s)",
1158 iface->name, strerror(error));
1159 netdev_close(iface->netdev);
1160 iface->netdev = NULL;
1164 /* Add the port, if necessary. */
1165 if (iface->netdev && iface->ofp_port < 0) {
1169 error = ofproto_port_add(br->ofproto, iface->netdev,
1172 iface_set_ofp_port(iface, ofp_port);
1174 netdev_close(iface->netdev);
1175 iface->netdev = NULL;
1179 /* Populate stats columns in new Interface rows. */
1180 if (iface->netdev && !iface->cfg->mtu) {
1181 iface_refresh_stats(iface);
1182 iface_refresh_status(iface);
1185 /* Delete the iface if we failed. */
1186 if (iface->netdev && iface->ofp_port >= 0) {
1187 VLOG_DBG("bridge %s: interface %s is on port %d",
1188 br->name, iface->name, iface->ofp_port);
1190 if (iface->netdev) {
1191 VLOG_ERR("bridge %s: missing %s interface, dropping",
1192 br->name, iface->name);
1194 /* We already reported a related error, don't bother
1195 * duplicating it. */
1197 iface_clear_db_record(iface->cfg);
1198 iface_destroy(iface);
1201 if (list_is_empty(&port->ifaces)) {
1202 VLOG_WARN("%s port has no interfaces, dropping", port->name);
1207 /* Add bond fake iface if necessary. */
1208 if (port_is_bond_fake_iface(port)) {
1209 if (ofproto_port_query_by_name(br->ofproto, port->name,
1211 struct netdev *netdev;
1214 error = netdev_open(port->name, "internal", &netdev);
1216 ofproto_port_add(br->ofproto, netdev, NULL);
1217 netdev_close(netdev);
1219 VLOG_WARN("could not open network device %s (%s)",
1220 port->name, strerror(error));
1223 /* Already exists, nothing to do. */
1224 ofproto_port_destroy(&ofproto_port);
1231 get_ovsrec_key_value(char **keys, char **values, size_t n, const char *key)
1235 for (i = 0; i < n; i++) {
1236 if (!strcmp(keys[i], key)) {
1244 bridge_get_other_config(const struct ovsrec_bridge *br_cfg, const char *key)
1246 return get_ovsrec_key_value(br_cfg->key_other_config,
1247 br_cfg->value_other_config,
1248 br_cfg->n_other_config, key);
1251 /* Set Flow eviction threshold */
1253 bridge_configure_flow_eviction_threshold(struct bridge *br)
1255 const char *threshold_str;
1258 threshold_str = bridge_get_other_config(br->cfg, "flow-eviction-threshold");
1259 if (threshold_str) {
1260 threshold = strtoul(threshold_str, NULL, 10);
1262 threshold = OFPROTO_FLOW_EVICTON_THRESHOLD_DEFAULT;
1264 ofproto_set_flow_eviction_threshold(br->ofproto, threshold);
1267 /* Set forward BPDU option. */
1269 bridge_configure_forward_bpdu(struct bridge *br)
1271 const char *forward_bpdu_str;
1272 bool forward_bpdu = false;
1274 forward_bpdu_str = bridge_get_other_config(br->cfg, "forward-bpdu");
1275 if (forward_bpdu_str && !strcmp(forward_bpdu_str, "true")) {
1276 forward_bpdu = true;
1278 ofproto_set_forward_bpdu(br->ofproto, forward_bpdu);
1281 /* Set MAC aging time for 'br'. */
1283 bridge_configure_mac_idle_time(struct bridge *br)
1285 const char *idle_time_str;
1288 idle_time_str = bridge_get_other_config(br->cfg, "mac-aging-time");
1289 idle_time = (idle_time_str && atoi(idle_time_str)
1290 ? atoi(idle_time_str)
1291 : MAC_ENTRY_DEFAULT_IDLE_TIME);
1292 ofproto_set_mac_idle_time(br->ofproto, idle_time);
1296 bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
1297 struct iface **hw_addr_iface)
1299 struct hmapx mirror_output_ports;
1302 bool found_addr = false;
1306 *hw_addr_iface = NULL;
1308 /* Did the user request a particular MAC? */
1309 hwaddr = bridge_get_other_config(br->cfg, "hwaddr");
1310 if (hwaddr && eth_addr_from_string(hwaddr, ea)) {
1311 if (eth_addr_is_multicast(ea)) {
1312 VLOG_ERR("bridge %s: cannot set MAC address to multicast "
1313 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1314 } else if (eth_addr_is_zero(ea)) {
1315 VLOG_ERR("bridge %s: cannot set MAC address to zero", br->name);
1321 /* Mirror output ports don't participate in picking the local hardware
1322 * address. ofproto can't help us find out whether a given port is a
1323 * mirror output because we haven't configured mirrors yet, so we need to
1324 * accumulate them ourselves. */
1325 hmapx_init(&mirror_output_ports);
1326 for (i = 0; i < br->cfg->n_mirrors; i++) {
1327 struct ovsrec_mirror *m = br->cfg->mirrors[i];
1328 if (m->output_port) {
1329 hmapx_add(&mirror_output_ports, m->output_port);
1333 /* Otherwise choose the minimum non-local MAC address among all of the
1335 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1336 uint8_t iface_ea[ETH_ADDR_LEN];
1337 struct iface *candidate;
1338 struct iface *iface;
1340 /* Mirror output ports don't participate. */
1341 if (hmapx_contains(&mirror_output_ports, port->cfg)) {
1345 /* Choose the MAC address to represent the port. */
1347 if (port->cfg->mac && eth_addr_from_string(port->cfg->mac, iface_ea)) {
1348 /* Find the interface with this Ethernet address (if any) so that
1349 * we can provide the correct devname to the caller. */
1350 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1351 uint8_t candidate_ea[ETH_ADDR_LEN];
1352 if (!netdev_get_etheraddr(candidate->netdev, candidate_ea)
1353 && eth_addr_equals(iface_ea, candidate_ea)) {
1358 /* Choose the interface whose MAC address will represent the port.
1359 * The Linux kernel bonding code always chooses the MAC address of
1360 * the first slave added to a bond, and the Fedora networking
1361 * scripts always add slaves to a bond in alphabetical order, so
1362 * for compatibility we choose the interface with the name that is
1363 * first in alphabetical order. */
1364 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1365 if (!iface || strcmp(candidate->name, iface->name) < 0) {
1370 /* The local port doesn't count (since we're trying to choose its
1371 * MAC address anyway). */
1372 if (iface->ofp_port == OFPP_LOCAL) {
1377 error = netdev_get_etheraddr(iface->netdev, iface_ea);
1383 /* Compare against our current choice. */
1384 if (!eth_addr_is_multicast(iface_ea) &&
1385 !eth_addr_is_local(iface_ea) &&
1386 !eth_addr_is_reserved(iface_ea) &&
1387 !eth_addr_is_zero(iface_ea) &&
1388 (!found_addr || eth_addr_compare_3way(iface_ea, ea) < 0))
1390 memcpy(ea, iface_ea, ETH_ADDR_LEN);
1391 *hw_addr_iface = iface;
1396 VLOG_DBG("bridge %s: using bridge Ethernet address "ETH_ADDR_FMT,
1397 br->name, ETH_ADDR_ARGS(ea));
1399 memcpy(ea, br->default_ea, ETH_ADDR_LEN);
1400 *hw_addr_iface = NULL;
1401 VLOG_WARN("bridge %s: using default bridge Ethernet "
1402 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1405 hmapx_destroy(&mirror_output_ports);
1408 /* Choose and returns the datapath ID for bridge 'br' given that the bridge
1409 * Ethernet address is 'bridge_ea'. If 'bridge_ea' is the Ethernet address of
1410 * an interface on 'br', then that interface must be passed in as
1411 * 'hw_addr_iface'; if 'bridge_ea' was derived some other way, then
1412 * 'hw_addr_iface' must be passed in as a null pointer. */
1414 bridge_pick_datapath_id(struct bridge *br,
1415 const uint8_t bridge_ea[ETH_ADDR_LEN],
1416 struct iface *hw_addr_iface)
1419 * The procedure for choosing a bridge MAC address will, in the most
1420 * ordinary case, also choose a unique MAC that we can use as a datapath
1421 * ID. In some special cases, though, multiple bridges will end up with
1422 * the same MAC address. This is OK for the bridges, but it will confuse
1423 * the OpenFlow controller, because each datapath needs a unique datapath
1426 * Datapath IDs must be unique. It is also very desirable that they be
1427 * stable from one run to the next, so that policy set on a datapath
1430 const char *datapath_id;
1433 datapath_id = bridge_get_other_config(br->cfg, "datapath-id");
1434 if (datapath_id && dpid_from_string(datapath_id, &dpid)) {
1438 if (!hw_addr_iface) {
1440 * A purely internal bridge, that is, one that has no non-virtual
1441 * network devices on it at all, is difficult because it has no
1442 * natural unique identifier at all.
1444 * When the host is a XenServer, we handle this case by hashing the
1445 * host's UUID with the name of the bridge. Names of bridges are
1446 * persistent across XenServer reboots, although they can be reused if
1447 * an internal network is destroyed and then a new one is later
1448 * created, so this is fairly effective.
1450 * When the host is not a XenServer, we punt by using a random MAC
1451 * address on each run.
1453 const char *host_uuid = xenserver_get_host_uuid();
1455 char *combined = xasprintf("%s,%s", host_uuid, br->name);
1456 dpid = dpid_from_hash(combined, strlen(combined));
1462 return eth_addr_to_uint64(bridge_ea);
1466 dpid_from_hash(const void *data, size_t n)
1468 uint8_t hash[SHA1_DIGEST_SIZE];
1470 BUILD_ASSERT_DECL(sizeof hash >= ETH_ADDR_LEN);
1471 sha1_bytes(data, n, hash);
1472 eth_addr_mark_random(hash);
1473 return eth_addr_to_uint64(hash);
1477 iface_refresh_status(struct iface *iface)
1481 enum netdev_flags flags;
1488 if (iface_is_synthetic(iface)) {
1494 if (!netdev_get_status(iface->netdev, &sh)) {
1496 char **keys, **values;
1498 shash_to_ovs_idl_map(&sh, &keys, &values, &n);
1499 ovsrec_interface_set_status(iface->cfg, keys, values, n);
1504 ovsrec_interface_set_status(iface->cfg, NULL, NULL, 0);
1507 shash_destroy_free_data(&sh);
1509 error = netdev_get_flags(iface->netdev, &flags);
1511 ovsrec_interface_set_admin_state(iface->cfg, flags & NETDEV_UP ? "up" : "down");
1514 ovsrec_interface_set_admin_state(iface->cfg, NULL);
1517 error = netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
1519 ovsrec_interface_set_duplex(iface->cfg,
1520 netdev_features_is_full_duplex(current)
1522 /* warning: uint64_t -> int64_t conversion */
1523 bps = netdev_features_to_bps(current);
1524 ovsrec_interface_set_link_speed(iface->cfg, &bps, 1);
1527 ovsrec_interface_set_duplex(iface->cfg, NULL);
1528 ovsrec_interface_set_link_speed(iface->cfg, NULL, 0);
1531 error = netdev_get_mtu(iface->netdev, &mtu);
1534 ovsrec_interface_set_mtu(iface->cfg, &mtu_64, 1);
1537 ovsrec_interface_set_mtu(iface->cfg, NULL, 0);
1541 /* Writes 'iface''s CFM statistics to the database. */
1543 iface_refresh_cfm_stats(struct iface *iface)
1545 const struct ovsrec_interface *cfg = iface->cfg;
1547 const uint64_t *rmps;
1550 if (iface_is_synthetic(iface)) {
1554 fault = ofproto_port_get_cfm_fault(iface->port->bridge->ofproto,
1557 bool fault_bool = fault;
1558 ovsrec_interface_set_cfm_fault(cfg, &fault_bool, 1);
1560 ovsrec_interface_set_cfm_fault(cfg, NULL, 0);
1563 error = ofproto_port_get_cfm_remote_mpids(iface->port->bridge->ofproto,
1564 iface->ofp_port, &rmps, &n_rmps);
1566 ovsrec_interface_set_cfm_remote_mpids(cfg, (const int64_t *)rmps,
1569 ovsrec_interface_set_cfm_remote_mpids(cfg, NULL, 0);
1574 iface_refresh_stats(struct iface *iface)
1576 #define IFACE_STATS \
1577 IFACE_STAT(rx_packets, "rx_packets") \
1578 IFACE_STAT(tx_packets, "tx_packets") \
1579 IFACE_STAT(rx_bytes, "rx_bytes") \
1580 IFACE_STAT(tx_bytes, "tx_bytes") \
1581 IFACE_STAT(rx_dropped, "rx_dropped") \
1582 IFACE_STAT(tx_dropped, "tx_dropped") \
1583 IFACE_STAT(rx_errors, "rx_errors") \
1584 IFACE_STAT(tx_errors, "tx_errors") \
1585 IFACE_STAT(rx_frame_errors, "rx_frame_err") \
1586 IFACE_STAT(rx_over_errors, "rx_over_err") \
1587 IFACE_STAT(rx_crc_errors, "rx_crc_err") \
1588 IFACE_STAT(collisions, "collisions")
1590 #define IFACE_STAT(MEMBER, NAME) NAME,
1591 static char *keys[] = { IFACE_STATS };
1593 int64_t values[ARRAY_SIZE(keys)];
1596 struct netdev_stats stats;
1598 if (iface_is_synthetic(iface)) {
1602 /* Intentionally ignore return value, since errors will set 'stats' to
1603 * all-1s, and we will deal with that correctly below. */
1604 netdev_get_stats(iface->netdev, &stats);
1606 /* Copy statistics into values[] array. */
1608 #define IFACE_STAT(MEMBER, NAME) values[i++] = stats.MEMBER;
1611 assert(i == ARRAY_SIZE(keys));
1613 ovsrec_interface_set_statistics(iface->cfg, keys, values, ARRAY_SIZE(keys));
1618 br_refresh_stp_status(struct bridge *br)
1620 struct ofproto *ofproto = br->ofproto;
1621 struct ofproto_stp_status status;
1622 char *keys[3], *values[3];
1625 if (ofproto_get_stp_status(ofproto, &status)) {
1629 if (!status.enabled) {
1630 ovsrec_bridge_set_status(br->cfg, NULL, NULL, 0);
1634 keys[0] = "stp_bridge_id",
1635 values[0] = xasprintf(STP_ID_FMT, STP_ID_ARGS(status.bridge_id));
1636 keys[1] = "stp_designated_root",
1637 values[1] = xasprintf(STP_ID_FMT, STP_ID_ARGS(status.designated_root));
1638 keys[2] = "stp_root_path_cost",
1639 values[2] = xasprintf("%d", status.root_path_cost);
1641 ovsrec_bridge_set_status(br->cfg, keys, values, ARRAY_SIZE(values));
1643 for (i = 0; i < ARRAY_SIZE(values); i++) {
1649 port_refresh_stp_status(struct port *port)
1651 struct ofproto *ofproto = port->bridge->ofproto;
1652 struct iface *iface;
1653 struct ofproto_port_stp_status status;
1655 char *str_values[4];
1656 int64_t int_values[3];
1659 if (port_is_synthetic(port)) {
1663 /* STP doesn't currently support bonds. */
1664 if (!list_is_singleton(&port->ifaces)) {
1665 ovsrec_port_set_status(port->cfg, NULL, NULL, 0);
1669 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
1671 if (ofproto_port_get_stp_status(ofproto, iface->ofp_port, &status)) {
1675 if (!status.enabled) {
1676 ovsrec_port_set_status(port->cfg, NULL, NULL, 0);
1677 ovsrec_port_set_statistics(port->cfg, NULL, NULL, 0);
1681 /* Set Status column. */
1682 keys[0] = "stp_port_id";
1683 str_values[0] = xasprintf(STP_PORT_ID_FMT, status.port_id);
1684 keys[1] = "stp_state";
1685 str_values[1] = xstrdup(stp_state_name(status.state));
1686 keys[2] = "stp_sec_in_state";
1687 str_values[2] = xasprintf("%u", status.sec_in_state);
1688 keys[3] = "stp_role";
1689 str_values[3] = xstrdup(stp_role_name(status.role));
1691 ovsrec_port_set_status(port->cfg, keys, str_values,
1692 ARRAY_SIZE(str_values));
1694 for (i = 0; i < ARRAY_SIZE(str_values); i++) {
1695 free(str_values[i]);
1698 /* Set Statistics column. */
1699 keys[0] = "stp_tx_count";
1700 int_values[0] = status.tx_count;
1701 keys[1] = "stp_rx_count";
1702 int_values[1] = status.rx_count;
1703 keys[2] = "stp_error_count";
1704 int_values[2] = status.error_count;
1706 ovsrec_port_set_statistics(port->cfg, keys, int_values,
1707 ARRAY_SIZE(int_values));
1711 enable_system_stats(const struct ovsrec_open_vswitch *cfg)
1715 /* Use other-config:enable-system-stats by preference. */
1716 enable = get_ovsrec_key_value(cfg->key_other_config,
1717 cfg->value_other_config,
1718 cfg->n_other_config,
1719 "enable-statistics");
1721 return !strcmp(enable, "true");
1724 /* Disable by default. */
1729 refresh_system_stats(const struct ovsrec_open_vswitch *cfg)
1731 struct ovsdb_datum datum;
1735 if (enable_system_stats(cfg)) {
1736 get_system_stats(&stats);
1739 ovsdb_datum_from_shash(&datum, &stats);
1740 ovsdb_idl_txn_write(&cfg->header_, &ovsrec_open_vswitch_col_statistics,
1744 static inline const char *
1745 nx_role_to_str(enum nx_role role)
1750 case NX_ROLE_MASTER:
1755 return "*** INVALID ROLE ***";
1760 refresh_controller_status(void)
1764 const struct ovsrec_controller *cfg;
1768 /* Accumulate status for controllers on all bridges. */
1769 HMAP_FOR_EACH (br, node, &all_bridges) {
1770 ofproto_get_ofproto_controller_info(br->ofproto, &info);
1773 /* Update each controller in the database with current status. */
1774 OVSREC_CONTROLLER_FOR_EACH(cfg, idl) {
1775 struct ofproto_controller_info *cinfo =
1776 shash_find_data(&info, cfg->target);
1779 ovsrec_controller_set_is_connected(cfg, cinfo->is_connected);
1780 ovsrec_controller_set_role(cfg, nx_role_to_str(cinfo->role));
1781 ovsrec_controller_set_status(cfg, (char **) cinfo->pairs.keys,
1782 (char **) cinfo->pairs.values,
1785 ovsrec_controller_set_is_connected(cfg, false);
1786 ovsrec_controller_set_role(cfg, NULL);
1787 ovsrec_controller_set_status(cfg, NULL, NULL, 0);
1791 ofproto_free_ofproto_controller_info(&info);
1795 refresh_cfm_stats(void)
1797 static struct ovsdb_idl_txn *txn = NULL;
1802 txn = ovsdb_idl_txn_create(idl);
1804 HMAP_FOR_EACH (br, node, &all_bridges) {
1805 struct iface *iface;
1807 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
1808 iface_refresh_cfm_stats(iface);
1813 if (ovsdb_idl_txn_commit(txn) != TXN_INCOMPLETE) {
1814 ovsdb_idl_txn_destroy(txn);
1819 /* Performs periodic activity required by bridges that needs to be done with
1820 * the least possible latency.
1822 * It makes sense to call this function a couple of times per poll loop, to
1823 * provide a significant performance boost on some benchmarks with ofprotos
1824 * that use the ofproto-dpif implementation. */
1826 bridge_run_fast(void)
1830 HMAP_FOR_EACH (br, node, &all_bridges) {
1831 ofproto_run_fast(br->ofproto);
1838 const struct ovsrec_open_vswitch *cfg;
1840 bool vlan_splinters_changed;
1841 bool database_changed;
1844 /* (Re)configure if necessary. */
1845 database_changed = ovsdb_idl_run(idl);
1846 if (ovsdb_idl_is_lock_contended(idl)) {
1847 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
1848 struct bridge *br, *next_br;
1850 VLOG_ERR_RL(&rl, "another ovs-vswitchd process is running, "
1851 "disabling this process until it goes away");
1853 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
1857 } else if (!ovsdb_idl_has_lock(idl)) {
1860 cfg = ovsrec_open_vswitch_first(idl);
1862 /* Let each bridge do the work that it needs to do. */
1863 HMAP_FOR_EACH (br, node, &all_bridges) {
1864 ofproto_run(br->ofproto);
1867 /* Re-configure SSL. We do this on every trip through the main loop,
1868 * instead of just when the database changes, because the contents of the
1869 * key and certificate files can change without the database changing.
1871 * We do this before bridge_reconfigure() because that function might
1872 * initiate SSL connections and thus requires SSL to be configured. */
1873 if (cfg && cfg->ssl) {
1874 const struct ovsrec_ssl *ssl = cfg->ssl;
1876 stream_ssl_set_key_and_cert(ssl->private_key, ssl->certificate);
1877 stream_ssl_set_ca_cert_file(ssl->ca_cert, ssl->bootstrap_ca_cert);
1880 /* If VLAN splinters are in use, then we need to reconfigure if VLAN usage
1882 vlan_splinters_changed = false;
1883 if (vlan_splinters_enabled_anywhere) {
1884 HMAP_FOR_EACH (br, node, &all_bridges) {
1885 if (ofproto_has_vlan_usage_changed(br->ofproto)) {
1886 vlan_splinters_changed = true;
1892 if (database_changed || vlan_splinters_changed) {
1894 struct ovsdb_idl_txn *txn = ovsdb_idl_txn_create(idl);
1896 bridge_reconfigure(cfg);
1898 ovsrec_open_vswitch_set_cur_cfg(cfg, cfg->next_cfg);
1899 ovsdb_idl_txn_commit(txn);
1900 ovsdb_idl_txn_destroy(txn); /* XXX */
1902 /* We still need to reconfigure to avoid dangling pointers to
1903 * now-destroyed ovsrec structures inside bridge data. */
1904 static const struct ovsrec_open_vswitch null_cfg;
1906 bridge_reconfigure(&null_cfg);
1910 /* Refresh system and interface stats if necessary. */
1911 if (time_msec() >= stats_timer) {
1913 struct ovsdb_idl_txn *txn;
1915 txn = ovsdb_idl_txn_create(idl);
1916 HMAP_FOR_EACH (br, node, &all_bridges) {
1920 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1921 struct iface *iface;
1923 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1924 iface_refresh_stats(iface);
1925 iface_refresh_status(iface);
1929 HMAP_FOR_EACH (m, hmap_node, &br->mirrors) {
1930 mirror_refresh_stats(m);
1934 refresh_system_stats(cfg);
1935 refresh_controller_status();
1936 ovsdb_idl_txn_commit(txn);
1937 ovsdb_idl_txn_destroy(txn); /* XXX */
1940 stats_timer = time_msec() + STATS_INTERVAL;
1943 if (time_msec() >= db_limiter) {
1944 struct ovsdb_idl_txn *txn;
1946 txn = ovsdb_idl_txn_create(idl);
1947 HMAP_FOR_EACH (br, node, &all_bridges) {
1948 struct iface *iface;
1951 br_refresh_stp_status(br);
1953 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1954 port_refresh_stp_status(port);
1957 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
1958 const char *link_state;
1959 int64_t link_resets;
1962 if (iface_is_synthetic(iface)) {
1966 current = ofproto_port_is_lacp_current(br->ofproto,
1970 ovsrec_interface_set_lacp_current(iface->cfg, &bl, 1);
1972 ovsrec_interface_set_lacp_current(iface->cfg, NULL, 0);
1975 link_state = netdev_get_carrier(iface->netdev) ? "up" : "down";
1976 ovsrec_interface_set_link_state(iface->cfg, link_state);
1978 link_resets = netdev_get_carrier_resets(iface->netdev);
1979 ovsrec_interface_set_link_resets(iface->cfg, &link_resets, 1);
1983 if (ovsdb_idl_txn_commit(txn) != TXN_UNCHANGED) {
1984 db_limiter = time_msec() + DB_LIMIT_INTERVAL;
1986 ovsdb_idl_txn_destroy(txn);
1989 refresh_cfm_stats();
1995 ovsdb_idl_wait(idl);
1996 if (!hmap_is_empty(&all_bridges)) {
1999 HMAP_FOR_EACH (br, node, &all_bridges) {
2000 ofproto_wait(br->ofproto);
2002 poll_timer_wait_until(stats_timer);
2004 if (db_limiter > time_msec()) {
2005 poll_timer_wait_until(db_limiter);
2010 /* QoS unixctl user interface functions. */
2012 struct qos_unixctl_show_cbdata {
2014 struct iface *iface;
2018 qos_unixctl_show_cb(unsigned int queue_id,
2019 const struct shash *details,
2022 struct qos_unixctl_show_cbdata *data = aux;
2023 struct ds *ds = data->ds;
2024 struct iface *iface = data->iface;
2025 struct netdev_queue_stats stats;
2026 struct shash_node *node;
2029 ds_put_cstr(ds, "\n");
2031 ds_put_format(ds, "Queue %u:\n", queue_id);
2033 ds_put_cstr(ds, "Default:\n");
2036 SHASH_FOR_EACH (node, details) {
2037 ds_put_format(ds, "\t%s: %s\n", node->name, (char *)node->data);
2040 error = netdev_get_queue_stats(iface->netdev, queue_id, &stats);
2042 if (stats.tx_packets != UINT64_MAX) {
2043 ds_put_format(ds, "\ttx_packets: %"PRIu64"\n", stats.tx_packets);
2046 if (stats.tx_bytes != UINT64_MAX) {
2047 ds_put_format(ds, "\ttx_bytes: %"PRIu64"\n", stats.tx_bytes);
2050 if (stats.tx_errors != UINT64_MAX) {
2051 ds_put_format(ds, "\ttx_errors: %"PRIu64"\n", stats.tx_errors);
2054 ds_put_format(ds, "\tFailed to get statistics for queue %u: %s",
2055 queue_id, strerror(error));
2060 qos_unixctl_show(struct unixctl_conn *conn, int argc OVS_UNUSED,
2061 const char *argv[], void *aux OVS_UNUSED)
2063 struct ds ds = DS_EMPTY_INITIALIZER;
2064 struct shash sh = SHASH_INITIALIZER(&sh);
2065 struct iface *iface;
2067 struct shash_node *node;
2068 struct qos_unixctl_show_cbdata data;
2071 iface = iface_find(argv[1]);
2073 unixctl_command_reply(conn, 501, "no such interface");
2077 netdev_get_qos(iface->netdev, &type, &sh);
2079 if (*type != '\0') {
2080 ds_put_format(&ds, "QoS: %s %s\n", iface->name, type);
2082 SHASH_FOR_EACH (node, &sh) {
2083 ds_put_format(&ds, "%s: %s\n", node->name, (char *)node->data);
2088 error = netdev_dump_queues(iface->netdev, qos_unixctl_show_cb, &data);
2091 ds_put_format(&ds, "failed to dump queues: %s", strerror(error));
2093 unixctl_command_reply(conn, 200, ds_cstr(&ds));
2095 ds_put_format(&ds, "QoS not configured on %s\n", iface->name);
2096 unixctl_command_reply(conn, 501, ds_cstr(&ds));
2099 shash_destroy_free_data(&sh);
2103 /* Bridge reconfiguration functions. */
2105 bridge_create(const struct ovsrec_bridge *br_cfg)
2109 assert(!bridge_lookup(br_cfg->name));
2110 br = xzalloc(sizeof *br);
2112 br->name = xstrdup(br_cfg->name);
2113 br->type = xstrdup(ofproto_normalize_type(br_cfg->datapath_type));
2116 /* Derive the default Ethernet address from the bridge's UUID. This should
2117 * be unique and it will be stable between ovs-vswitchd runs. */
2118 memcpy(br->default_ea, &br_cfg->header_.uuid, ETH_ADDR_LEN);
2119 eth_addr_mark_random(br->default_ea);
2121 hmap_init(&br->ports);
2122 hmap_init(&br->ifaces);
2123 hmap_init(&br->iface_by_name);
2124 hmap_init(&br->mirrors);
2126 hmap_insert(&all_bridges, &br->node, hash_string(br->name, 0));
2130 bridge_destroy(struct bridge *br)
2133 struct mirror *mirror, *next_mirror;
2134 struct port *port, *next_port;
2136 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
2139 HMAP_FOR_EACH_SAFE (mirror, next_mirror, hmap_node, &br->mirrors) {
2140 mirror_destroy(mirror);
2142 hmap_remove(&all_bridges, &br->node);
2143 ofproto_destroy(br->ofproto);
2144 hmap_destroy(&br->ifaces);
2145 hmap_destroy(&br->ports);
2146 hmap_destroy(&br->iface_by_name);
2147 hmap_destroy(&br->mirrors);
2154 static struct bridge *
2155 bridge_lookup(const char *name)
2159 HMAP_FOR_EACH_WITH_HASH (br, node, hash_string(name, 0), &all_bridges) {
2160 if (!strcmp(br->name, name)) {
2167 /* Handle requests for a listing of all flows known by the OpenFlow
2168 * stack, including those normally hidden. */
2170 bridge_unixctl_dump_flows(struct unixctl_conn *conn, int argc OVS_UNUSED,
2171 const char *argv[], void *aux OVS_UNUSED)
2176 br = bridge_lookup(argv[1]);
2178 unixctl_command_reply(conn, 501, "Unknown bridge");
2183 ofproto_get_all_flows(br->ofproto, &results);
2185 unixctl_command_reply(conn, 200, ds_cstr(&results));
2186 ds_destroy(&results);
2189 /* "bridge/reconnect [BRIDGE]": makes BRIDGE drop all of its controller
2190 * connections and reconnect. If BRIDGE is not specified, then all bridges
2191 * drop their controller connections and reconnect. */
2193 bridge_unixctl_reconnect(struct unixctl_conn *conn, int argc,
2194 const char *argv[], void *aux OVS_UNUSED)
2198 br = bridge_lookup(argv[1]);
2200 unixctl_command_reply(conn, 501, "Unknown bridge");
2203 ofproto_reconnect_controllers(br->ofproto);
2205 HMAP_FOR_EACH (br, node, &all_bridges) {
2206 ofproto_reconnect_controllers(br->ofproto);
2209 unixctl_command_reply(conn, 200, NULL);
2213 bridge_get_controllers(const struct bridge *br,
2214 struct ovsrec_controller ***controllersp)
2216 struct ovsrec_controller **controllers;
2217 size_t n_controllers;
2219 controllers = br->cfg->controller;
2220 n_controllers = br->cfg->n_controller;
2222 if (n_controllers == 1 && !strcmp(controllers[0]->target, "none")) {
2228 *controllersp = controllers;
2230 return n_controllers;
2233 /* Adds and deletes "struct port"s and "struct iface"s under 'br' to match
2234 * those configured in 'br->cfg'. */
2236 bridge_add_del_ports(struct bridge *br,
2237 const unsigned long int *splinter_vlans)
2239 struct port *port, *next;
2240 struct shash_node *node;
2241 struct shash new_ports;
2244 /* Collect new ports. */
2245 shash_init(&new_ports);
2246 for (i = 0; i < br->cfg->n_ports; i++) {
2247 const char *name = br->cfg->ports[i]->name;
2248 if (!shash_add_once(&new_ports, name, br->cfg->ports[i])) {
2249 VLOG_WARN("bridge %s: %s specified twice as bridge port",
2253 if (bridge_get_controllers(br, NULL)
2254 && !shash_find(&new_ports, br->name)) {
2255 VLOG_WARN("bridge %s: no port named %s, synthesizing one",
2256 br->name, br->name);
2258 br->synth_local_port.interfaces = &br->synth_local_ifacep;
2259 br->synth_local_port.n_interfaces = 1;
2260 br->synth_local_port.name = br->name;
2262 br->synth_local_iface.name = br->name;
2263 br->synth_local_iface.type = "internal";
2265 br->synth_local_ifacep = &br->synth_local_iface;
2267 shash_add(&new_ports, br->name, &br->synth_local_port);
2270 if (splinter_vlans) {
2271 add_vlan_splinter_ports(br, splinter_vlans, &new_ports);
2274 /* Get rid of deleted ports.
2275 * Get rid of deleted interfaces on ports that still exist. */
2276 HMAP_FOR_EACH_SAFE (port, next, hmap_node, &br->ports) {
2277 port->cfg = shash_find_data(&new_ports, port->name);
2281 port_del_ifaces(port);
2285 /* Create new ports.
2286 * Add new interfaces to existing ports. */
2287 SHASH_FOR_EACH (node, &new_ports) {
2288 struct port *port = port_lookup(br, node->name);
2290 struct ovsrec_port *cfg = node->data;
2291 port = port_create(br, cfg);
2293 port_add_ifaces(port);
2294 if (list_is_empty(&port->ifaces)) {
2295 VLOG_WARN("bridge %s: port %s has no interfaces, dropping",
2296 br->name, port->name);
2300 shash_destroy(&new_ports);
2303 /* Initializes 'oc' appropriately as a management service controller for
2306 * The caller must free oc->target when it is no longer needed. */
2308 bridge_ofproto_controller_for_mgmt(const struct bridge *br,
2309 struct ofproto_controller *oc)
2311 oc->target = xasprintf("punix:%s/%s.mgmt", ovs_rundir(), br->name);
2312 oc->max_backoff = 0;
2313 oc->probe_interval = 60;
2314 oc->band = OFPROTO_OUT_OF_BAND;
2316 oc->burst_limit = 0;
2319 /* Converts ovsrec_controller 'c' into an ofproto_controller in 'oc'. */
2321 bridge_ofproto_controller_from_ovsrec(const struct ovsrec_controller *c,
2322 struct ofproto_controller *oc)
2324 oc->target = c->target;
2325 oc->max_backoff = c->max_backoff ? *c->max_backoff / 1000 : 8;
2326 oc->probe_interval = c->inactivity_probe ? *c->inactivity_probe / 1000 : 5;
2327 oc->band = (!c->connection_mode || !strcmp(c->connection_mode, "in-band")
2328 ? OFPROTO_IN_BAND : OFPROTO_OUT_OF_BAND);
2329 oc->rate_limit = c->controller_rate_limit ? *c->controller_rate_limit : 0;
2330 oc->burst_limit = (c->controller_burst_limit
2331 ? *c->controller_burst_limit : 0);
2334 /* Configures the IP stack for 'br''s local interface properly according to the
2335 * configuration in 'c'. */
2337 bridge_configure_local_iface_netdev(struct bridge *br,
2338 struct ovsrec_controller *c)
2340 struct netdev *netdev;
2341 struct in_addr mask, gateway;
2343 struct iface *local_iface;
2346 /* If there's no local interface or no IP address, give up. */
2347 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
2348 if (!local_iface || !c->local_ip || !inet_aton(c->local_ip, &ip)) {
2352 /* Bring up the local interface. */
2353 netdev = local_iface->netdev;
2354 netdev_turn_flags_on(netdev, NETDEV_UP, true);
2356 /* Configure the IP address and netmask. */
2357 if (!c->local_netmask
2358 || !inet_aton(c->local_netmask, &mask)
2360 mask.s_addr = guess_netmask(ip.s_addr);
2362 if (!netdev_set_in4(netdev, ip, mask)) {
2363 VLOG_INFO("bridge %s: configured IP address "IP_FMT", netmask "IP_FMT,
2364 br->name, IP_ARGS(&ip.s_addr), IP_ARGS(&mask.s_addr));
2367 /* Configure the default gateway. */
2368 if (c->local_gateway
2369 && inet_aton(c->local_gateway, &gateway)
2370 && gateway.s_addr) {
2371 if (!netdev_add_router(netdev, gateway)) {
2372 VLOG_INFO("bridge %s: configured gateway "IP_FMT,
2373 br->name, IP_ARGS(&gateway.s_addr));
2378 /* Returns true if 'a' and 'b' are the same except that any number of slashes
2379 * in either string are treated as equal to any number of slashes in the other,
2380 * e.g. "x///y" is equal to "x/y". */
2382 equal_pathnames(const char *a, const char *b)
2386 a += strspn(a, "/");
2387 b += strspn(b, "/");
2388 } else if (*a == '\0') {
2399 bridge_configure_remotes(struct bridge *br,
2400 const struct sockaddr_in *managers, size_t n_managers)
2402 const char *disable_ib_str, *queue_id_str;
2403 bool disable_in_band = false;
2406 struct ovsrec_controller **controllers;
2407 size_t n_controllers;
2409 enum ofproto_fail_mode fail_mode;
2411 struct ofproto_controller *ocs;
2415 /* Check if we should disable in-band control on this bridge. */
2416 disable_ib_str = bridge_get_other_config(br->cfg, "disable-in-band");
2417 if (disable_ib_str && !strcmp(disable_ib_str, "true")) {
2418 disable_in_band = true;
2421 /* Set OpenFlow queue ID for in-band control. */
2422 queue_id_str = bridge_get_other_config(br->cfg, "in-band-queue");
2423 queue_id = queue_id_str ? strtol(queue_id_str, NULL, 10) : -1;
2424 ofproto_set_in_band_queue(br->ofproto, queue_id);
2426 if (disable_in_band) {
2427 ofproto_set_extra_in_band_remotes(br->ofproto, NULL, 0);
2429 ofproto_set_extra_in_band_remotes(br->ofproto, managers, n_managers);
2432 n_controllers = bridge_get_controllers(br, &controllers);
2434 ocs = xmalloc((n_controllers + 1) * sizeof *ocs);
2437 bridge_ofproto_controller_for_mgmt(br, &ocs[n_ocs++]);
2438 for (i = 0; i < n_controllers; i++) {
2439 struct ovsrec_controller *c = controllers[i];
2441 if (!strncmp(c->target, "punix:", 6)
2442 || !strncmp(c->target, "unix:", 5)) {
2443 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2446 whitelist = xasprintf("unix:%s/%s.controller",
2447 ovs_rundir(), br->name);
2448 if (!equal_pathnames(c->target, whitelist)) {
2449 /* Prevent remote ovsdb-server users from accessing arbitrary
2450 * Unix domain sockets and overwriting arbitrary local
2452 VLOG_ERR_RL(&rl, "bridge %s: Not adding Unix domain socket "
2453 "controller \"%s\" due to possibility for remote "
2454 "exploit. Instead, specify whitelisted \"%s\" or "
2455 "connect to \"unix:%s/%s.mgmt\" (which is always "
2456 "available without special configuration).",
2457 br->name, c->target, whitelist,
2458 ovs_rundir(), br->name);
2466 bridge_configure_local_iface_netdev(br, c);
2467 bridge_ofproto_controller_from_ovsrec(c, &ocs[n_ocs]);
2468 if (disable_in_band) {
2469 ocs[n_ocs].band = OFPROTO_OUT_OF_BAND;
2474 ofproto_set_controllers(br->ofproto, ocs, n_ocs);
2475 free(ocs[0].target); /* From bridge_ofproto_controller_for_mgmt(). */
2478 /* Set the fail-mode. */
2479 fail_mode = !br->cfg->fail_mode
2480 || !strcmp(br->cfg->fail_mode, "standalone")
2481 ? OFPROTO_FAIL_STANDALONE
2482 : OFPROTO_FAIL_SECURE;
2483 ofproto_set_fail_mode(br->ofproto, fail_mode);
2485 /* Configure OpenFlow controller connection snooping. */
2486 if (!ofproto_has_snoops(br->ofproto)) {
2490 sset_add_and_free(&snoops, xasprintf("punix:%s/%s.snoop",
2491 ovs_rundir(), br->name));
2492 ofproto_set_snoops(br->ofproto, &snoops);
2493 sset_destroy(&snoops);
2498 bridge_configure_tables(struct bridge *br)
2500 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2504 n_tables = ofproto_get_n_tables(br->ofproto);
2506 for (i = 0; i < n_tables; i++) {
2507 struct ofproto_table_settings s;
2510 s.max_flows = UINT_MAX;
2514 if (j < br->cfg->n_flow_tables && i == br->cfg->key_flow_tables[j]) {
2515 struct ovsrec_flow_table *cfg = br->cfg->value_flow_tables[j++];
2518 if (cfg->n_flow_limit && *cfg->flow_limit < UINT_MAX) {
2519 s.max_flows = *cfg->flow_limit;
2521 if (cfg->overflow_policy
2522 && !strcmp(cfg->overflow_policy, "evict")) {
2525 s.groups = xmalloc(cfg->n_groups * sizeof *s.groups);
2526 for (k = 0; k < cfg->n_groups; k++) {
2527 const char *string = cfg->groups[k];
2530 msg = mf_parse_subfield__(&s.groups[k], &string);
2532 VLOG_WARN_RL(&rl, "bridge %s table %d: error parsing "
2533 "'groups' (%s)", br->name, i, msg);
2535 } else if (*string) {
2536 VLOG_WARN_RL(&rl, "bridge %s table %d: 'groups' "
2537 "element '%s' contains trailing garbage",
2538 br->name, i, cfg->groups[k]);
2546 ofproto_configure_table(br->ofproto, i, &s);
2550 for (; j < br->cfg->n_flow_tables; j++) {
2551 VLOG_WARN_RL(&rl, "bridge %s: ignoring configuration for flow table "
2552 "%"PRId64" not supported by this datapath", br->name,
2553 br->cfg->key_flow_tables[j]);
2557 /* Port functions. */
2559 static struct port *
2560 port_create(struct bridge *br, const struct ovsrec_port *cfg)
2564 port = xzalloc(sizeof *port);
2566 port->name = xstrdup(cfg->name);
2568 list_init(&port->ifaces);
2570 hmap_insert(&br->ports, &port->hmap_node, hash_string(port->name, 0));
2572 VLOG_INFO("created port %s on bridge %s", port->name, br->name);
2578 get_port_other_config(const struct ovsrec_port *port, const char *key,
2579 const char *default_value)
2583 value = get_ovsrec_key_value(port->key_other_config,
2584 port->value_other_config,
2585 port->n_other_config, key);
2586 return value ? value : default_value;
2590 get_interface_other_config(const struct ovsrec_interface *iface,
2591 const char *key, const char *default_value)
2595 value = get_ovsrec_key_value(iface->key_other_config,
2596 iface->value_other_config,
2597 iface->n_other_config, key);
2598 return value ? value : default_value;
2601 /* Deletes interfaces from 'port' that are no longer configured for it. */
2603 port_del_ifaces(struct port *port)
2605 struct iface *iface, *next;
2606 struct sset new_ifaces;
2609 /* Collect list of new interfaces. */
2610 sset_init(&new_ifaces);
2611 for (i = 0; i < port->cfg->n_interfaces; i++) {
2612 const char *name = port->cfg->interfaces[i]->name;
2613 const char *type = port->cfg->interfaces[i]->name;
2614 if (strcmp(type, "null")) {
2615 sset_add(&new_ifaces, name);
2619 /* Get rid of deleted interfaces. */
2620 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2621 if (!sset_contains(&new_ifaces, iface->name)) {
2622 iface_destroy(iface);
2626 sset_destroy(&new_ifaces);
2629 /* Adds new interfaces to 'port' and updates 'type' and 'cfg' members of
2632 port_add_ifaces(struct port *port)
2634 struct shash new_ifaces;
2635 struct shash_node *node;
2638 /* Collect new ifaces. */
2639 shash_init(&new_ifaces);
2640 for (i = 0; i < port->cfg->n_interfaces; i++) {
2641 const struct ovsrec_interface *cfg = port->cfg->interfaces[i];
2642 if (strcmp(cfg->type, "null")
2643 && !shash_add_once(&new_ifaces, cfg->name, cfg)) {
2644 VLOG_WARN("port %s: %s specified twice as port interface",
2645 port->name, cfg->name);
2646 iface_clear_db_record(cfg);
2650 /* Create new interfaces.
2651 * Update interface types and 'cfg' members. */
2652 SHASH_FOR_EACH (node, &new_ifaces) {
2653 const struct ovsrec_interface *cfg = node->data;
2654 const char *iface_name = node->name;
2655 struct iface *iface;
2657 iface = iface_lookup(port->bridge, iface_name);
2659 iface = iface_create(port, cfg);
2664 /* Determine interface type. The local port always has type
2665 * "internal". Other ports take their type from the database and
2666 * default to "system" if none is specified. */
2667 iface->type = (!strcmp(iface_name, port->bridge->name) ? "internal"
2668 : cfg->type[0] ? cfg->type
2671 shash_destroy(&new_ifaces);
2675 port_destroy(struct port *port)
2678 struct bridge *br = port->bridge;
2679 struct iface *iface, *next;
2682 ofproto_bundle_unregister(br->ofproto, port);
2685 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2686 iface_destroy(iface);
2689 hmap_remove(&br->ports, &port->hmap_node);
2691 VLOG_INFO("destroyed port %s on bridge %s", port->name, br->name);
2698 static struct port *
2699 port_lookup(const struct bridge *br, const char *name)
2703 HMAP_FOR_EACH_WITH_HASH (port, hmap_node, hash_string(name, 0),
2705 if (!strcmp(port->name, name)) {
2713 enable_lacp(struct port *port, bool *activep)
2715 if (!port->cfg->lacp) {
2716 /* XXX when LACP implementation has been sufficiently tested, enable by
2717 * default and make active on bonded ports. */
2719 } else if (!strcmp(port->cfg->lacp, "off")) {
2721 } else if (!strcmp(port->cfg->lacp, "active")) {
2724 } else if (!strcmp(port->cfg->lacp, "passive")) {
2728 VLOG_WARN("port %s: unknown LACP mode %s",
2729 port->name, port->cfg->lacp);
2734 static struct lacp_settings *
2735 port_configure_lacp(struct port *port, struct lacp_settings *s)
2737 const char *lacp_time, *system_id;
2738 long long int custom_time;
2741 if (!enable_lacp(port, &s->active)) {
2745 s->name = port->name;
2747 system_id = get_port_other_config(port->cfg, "lacp-system-id", NULL);
2749 if (sscanf(system_id, ETH_ADDR_SCAN_FMT,
2750 ETH_ADDR_SCAN_ARGS(s->id)) != ETH_ADDR_SCAN_COUNT) {
2751 VLOG_WARN("port %s: LACP system ID (%s) must be an Ethernet"
2752 " address.", port->name, system_id);
2756 memcpy(s->id, port->bridge->ea, ETH_ADDR_LEN);
2759 if (eth_addr_is_zero(s->id)) {
2760 VLOG_WARN("port %s: Invalid zero LACP system ID.", port->name);
2764 /* Prefer bondable links if unspecified. */
2765 priority = atoi(get_port_other_config(port->cfg, "lacp-system-priority",
2767 s->priority = (priority > 0 && priority <= UINT16_MAX
2769 : UINT16_MAX - !list_is_short(&port->ifaces));
2771 s->heartbeat = !strcmp(get_port_other_config(port->cfg,
2775 lacp_time = get_port_other_config(port->cfg, "lacp-time", "slow");
2776 custom_time = atoi(lacp_time);
2777 if (!strcmp(lacp_time, "fast")) {
2778 s->lacp_time = LACP_TIME_FAST;
2779 } else if (!strcmp(lacp_time, "slow")) {
2780 s->lacp_time = LACP_TIME_SLOW;
2781 } else if (custom_time > 0) {
2782 s->lacp_time = LACP_TIME_CUSTOM;
2783 s->custom_time = custom_time;
2785 s->lacp_time = LACP_TIME_SLOW;
2792 iface_configure_lacp(struct iface *iface, struct lacp_slave_settings *s)
2794 int priority, portid, key;
2796 portid = atoi(get_interface_other_config(iface->cfg, "lacp-port-id", "0"));
2797 priority = atoi(get_interface_other_config(iface->cfg,
2798 "lacp-port-priority", "0"));
2799 key = atoi(get_interface_other_config(iface->cfg, "lacp-aggregation-key",
2802 if (portid <= 0 || portid > UINT16_MAX) {
2803 portid = iface->ofp_port;
2806 if (priority <= 0 || priority > UINT16_MAX) {
2807 priority = UINT16_MAX;
2810 if (key < 0 || key > UINT16_MAX) {
2814 s->name = iface->name;
2816 s->priority = priority;
2821 port_configure_bond(struct port *port, struct bond_settings *s,
2822 uint32_t *bond_stable_ids)
2824 const char *detect_s;
2825 struct iface *iface;
2826 int miimon_interval;
2829 s->name = port->name;
2831 if (port->cfg->bond_mode) {
2832 if (!bond_mode_from_string(&s->balance, port->cfg->bond_mode)) {
2833 VLOG_WARN("port %s: unknown bond_mode %s, defaulting to %s",
2834 port->name, port->cfg->bond_mode,
2835 bond_mode_to_string(s->balance));
2838 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
2840 /* XXX: Post version 1.5.*, the default bond_mode changed from SLB to
2841 * active-backup. At some point we should remove this warning. */
2842 VLOG_WARN_RL(&rl, "port %s: Using the default bond_mode %s. Note that"
2843 " in previous versions, the default bond_mode was"
2844 " balance-slb", port->name,
2845 bond_mode_to_string(s->balance));
2847 if (s->balance == BM_SLB && port->bridge->cfg->n_flood_vlans) {
2848 VLOG_WARN("port %s: SLB bonds are incompatible with flood_vlans, "
2849 "please use another bond type or disable flood_vlans",
2853 miimon_interval = atoi(get_port_other_config(port->cfg,
2854 "bond-miimon-interval", "0"));
2855 if (miimon_interval <= 0) {
2856 miimon_interval = 200;
2859 detect_s = get_port_other_config(port->cfg, "bond-detect-mode", "carrier");
2860 if (!strcmp(detect_s, "carrier")) {
2861 miimon_interval = 0;
2862 } else if (strcmp(detect_s, "miimon")) {
2863 VLOG_WARN("port %s: unsupported bond-detect-mode %s, "
2864 "defaulting to carrier", port->name, detect_s);
2865 miimon_interval = 0;
2868 s->up_delay = MAX(0, port->cfg->bond_updelay);
2869 s->down_delay = MAX(0, port->cfg->bond_downdelay);
2870 s->basis = atoi(get_port_other_config(port->cfg, "bond-hash-basis", "0"));
2871 s->rebalance_interval = atoi(
2872 get_port_other_config(port->cfg, "bond-rebalance-interval", "10000"));
2873 if (s->rebalance_interval && s->rebalance_interval < 1000) {
2874 s->rebalance_interval = 1000;
2877 s->fake_iface = port->cfg->bond_fake_iface;
2880 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
2881 long long stable_id;
2883 stable_id = atoll(get_interface_other_config(iface->cfg,
2884 "bond-stable-id", "0"));
2885 if (stable_id <= 0 || stable_id >= UINT32_MAX) {
2886 stable_id = iface->ofp_port;
2888 bond_stable_ids[i++] = stable_id;
2890 netdev_set_miimon_interval(iface->netdev, miimon_interval);
2894 /* Returns true if 'port' is synthetic, that is, if we constructed it locally
2895 * instead of obtaining it from the database. */
2897 port_is_synthetic(const struct port *port)
2899 return ovsdb_idl_row_is_synthetic(&port->cfg->header_);
2902 /* Interface functions. */
2904 static struct iface *
2905 iface_create(struct port *port, const struct ovsrec_interface *if_cfg)
2907 struct bridge *br = port->bridge;
2908 struct iface *iface;
2909 char *name = if_cfg->name;
2911 iface = xzalloc(sizeof *iface);
2913 iface->name = xstrdup(name);
2914 iface->ofp_port = -1;
2915 iface->tag = tag_create_random();
2916 iface->netdev = NULL;
2917 iface->cfg = if_cfg;
2919 hmap_insert(&br->iface_by_name, &iface->name_node, hash_string(name, 0));
2921 list_push_back(&port->ifaces, &iface->port_elem);
2923 VLOG_DBG("attached network device %s to port %s", iface->name, port->name);
2929 iface_destroy(struct iface *iface)
2932 struct port *port = iface->port;
2933 struct bridge *br = port->bridge;
2935 if (br->ofproto && iface->ofp_port >= 0) {
2936 ofproto_port_unregister(br->ofproto, iface->ofp_port);
2939 if (iface->ofp_port >= 0) {
2940 hmap_remove(&br->ifaces, &iface->ofp_port_node);
2943 list_remove(&iface->port_elem);
2944 hmap_remove(&br->iface_by_name, &iface->name_node);
2946 netdev_close(iface->netdev);
2953 static struct iface *
2954 iface_lookup(const struct bridge *br, const char *name)
2956 struct iface *iface;
2958 HMAP_FOR_EACH_WITH_HASH (iface, name_node, hash_string(name, 0),
2959 &br->iface_by_name) {
2960 if (!strcmp(iface->name, name)) {
2968 static struct iface *
2969 iface_find(const char *name)
2971 const struct bridge *br;
2973 HMAP_FOR_EACH (br, node, &all_bridges) {
2974 struct iface *iface = iface_lookup(br, name);
2983 static struct iface *
2984 iface_from_ofp_port(const struct bridge *br, uint16_t ofp_port)
2986 struct iface *iface;
2988 HMAP_FOR_EACH_IN_BUCKET (iface, ofp_port_node,
2989 hash_int(ofp_port, 0), &br->ifaces) {
2990 if (iface->ofp_port == ofp_port) {
2997 /* Set Ethernet address of 'iface', if one is specified in the configuration
3000 iface_set_mac(struct iface *iface)
3002 uint8_t ea[ETH_ADDR_LEN];
3004 if (!strcmp(iface->type, "internal")
3005 && iface->cfg->mac && eth_addr_from_string(iface->cfg->mac, ea)) {
3006 if (iface->ofp_port == OFPP_LOCAL) {
3007 VLOG_ERR("interface %s: ignoring mac in Interface record "
3008 "(use Bridge record to set local port's mac)",
3010 } else if (eth_addr_is_multicast(ea)) {
3011 VLOG_ERR("interface %s: cannot set MAC to multicast address",
3014 int error = netdev_set_etheraddr(iface->netdev, ea);
3016 VLOG_ERR("interface %s: setting MAC failed (%s)",
3017 iface->name, strerror(error));
3023 /* Sets the ofport column of 'if_cfg' to 'ofport'. */
3025 iface_set_ofport(const struct ovsrec_interface *if_cfg, int64_t ofport)
3027 if (if_cfg && !ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
3028 ovsrec_interface_set_ofport(if_cfg, &ofport, 1);
3032 /* Clears all of the fields in 'if_cfg' that indicate interface status, and
3033 * sets the "ofport" field to -1.
3035 * This is appropriate when 'if_cfg''s interface cannot be created or is
3036 * otherwise invalid. */
3038 iface_clear_db_record(const struct ovsrec_interface *if_cfg)
3040 if (!ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
3041 iface_set_ofport(if_cfg, -1);
3042 ovsrec_interface_set_status(if_cfg, NULL, NULL, 0);
3043 ovsrec_interface_set_admin_state(if_cfg, NULL);
3044 ovsrec_interface_set_duplex(if_cfg, NULL);
3045 ovsrec_interface_set_link_speed(if_cfg, NULL, 0);
3046 ovsrec_interface_set_link_state(if_cfg, NULL);
3047 ovsrec_interface_set_mtu(if_cfg, NULL, 0);
3048 ovsrec_interface_set_cfm_fault(if_cfg, NULL, 0);
3049 ovsrec_interface_set_cfm_remote_mpids(if_cfg, NULL, 0);
3050 ovsrec_interface_set_lacp_current(if_cfg, NULL, 0);
3051 ovsrec_interface_set_statistics(if_cfg, NULL, NULL, 0);
3055 /* Adds the 'n' key-value pairs in 'keys' in 'values' to 'shash'.
3057 * The value strings in '*shash' are taken directly from values[], not copied,
3058 * so the caller should not modify or free them. */
3060 shash_from_ovs_idl_map(char **keys, char **values, size_t n,
3061 struct shash *shash)
3066 for (i = 0; i < n; i++) {
3067 shash_add(shash, keys[i], values[i]);
3071 /* Creates 'keys' and 'values' arrays from 'shash'.
3073 * Sets 'keys' and 'values' to heap allocated arrays representing the key-value
3074 * pairs in 'shash'. The caller takes ownership of 'keys' and 'values'. They
3075 * are populated with with strings taken directly from 'shash' and thus have
3076 * the same ownership of the key-value pairs in shash.
3079 shash_to_ovs_idl_map(struct shash *shash,
3080 char ***keys, char ***values, size_t *n)
3084 struct shash_node *sn;
3086 count = shash_count(shash);
3088 k = xmalloc(count * sizeof *k);
3089 v = xmalloc(count * sizeof *v);
3092 SHASH_FOR_EACH(sn, shash) {
3103 struct iface_delete_queues_cbdata {
3104 struct netdev *netdev;
3105 const struct ovsdb_datum *queues;
3109 queue_ids_include(const struct ovsdb_datum *queues, int64_t target)
3111 union ovsdb_atom atom;
3113 atom.integer = target;
3114 return ovsdb_datum_find_key(queues, &atom, OVSDB_TYPE_INTEGER) != UINT_MAX;
3118 iface_delete_queues(unsigned int queue_id,
3119 const struct shash *details OVS_UNUSED, void *cbdata_)
3121 struct iface_delete_queues_cbdata *cbdata = cbdata_;
3123 if (!queue_ids_include(cbdata->queues, queue_id)) {
3124 netdev_delete_queue(cbdata->netdev, queue_id);
3129 iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos)
3131 struct ofpbuf queues_buf;
3133 ofpbuf_init(&queues_buf, 0);
3135 if (!qos || qos->type[0] == '\0' || qos->n_queues < 1) {
3136 netdev_set_qos(iface->netdev, NULL, NULL);
3138 struct iface_delete_queues_cbdata cbdata;
3139 struct shash details;
3143 /* Configure top-level Qos for 'iface'. */
3144 shash_from_ovs_idl_map(qos->key_other_config, qos->value_other_config,
3145 qos->n_other_config, &details);
3146 netdev_set_qos(iface->netdev, qos->type, &details);
3147 shash_destroy(&details);
3149 /* Deconfigure queues that were deleted. */
3150 cbdata.netdev = iface->netdev;
3151 cbdata.queues = ovsrec_qos_get_queues(qos, OVSDB_TYPE_INTEGER,
3153 netdev_dump_queues(iface->netdev, iface_delete_queues, &cbdata);
3155 /* Configure queues for 'iface'. */
3157 for (i = 0; i < qos->n_queues; i++) {
3158 const struct ovsrec_queue *queue = qos->value_queues[i];
3159 unsigned int queue_id = qos->key_queues[i];
3161 if (queue_id == 0) {
3165 if (queue->n_dscp == 1) {
3166 struct ofproto_port_queue *port_queue;
3168 port_queue = ofpbuf_put_uninit(&queues_buf,
3169 sizeof *port_queue);
3170 port_queue->queue = queue_id;
3171 port_queue->dscp = queue->dscp[0];
3174 shash_from_ovs_idl_map(queue->key_other_config,
3175 queue->value_other_config,
3176 queue->n_other_config, &details);
3177 netdev_set_queue(iface->netdev, queue_id, &details);
3178 shash_destroy(&details);
3181 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
3182 VLOG_WARN_RL(&rl, "interface %s: QoS configured without a default "
3183 "queue (queue 0). Packets not directed to a "
3184 "correctly configured queue may be dropped.",
3189 if (iface->ofp_port >= 0) {
3190 const struct ofproto_port_queue *port_queues = queues_buf.data;
3191 size_t n_queues = queues_buf.size / sizeof *port_queues;
3193 ofproto_port_set_queues(iface->port->bridge->ofproto, iface->ofp_port,
3194 port_queues, n_queues);
3197 netdev_set_policing(iface->netdev,
3198 iface->cfg->ingress_policing_rate,
3199 iface->cfg->ingress_policing_burst);
3201 ofpbuf_uninit(&queues_buf);
3205 iface_configure_cfm(struct iface *iface)
3207 const struct ovsrec_interface *cfg = iface->cfg;
3208 const char *extended_str, *opstate_str;
3209 struct cfm_settings s;
3211 if (!cfg->n_cfm_mpid) {
3212 ofproto_port_clear_cfm(iface->port->bridge->ofproto, iface->ofp_port);
3216 s.mpid = *cfg->cfm_mpid;
3217 s.interval = atoi(get_interface_other_config(iface->cfg, "cfm_interval",
3219 s.ccm_vlan = atoi(get_interface_other_config(iface->cfg, "cfm_ccm_vlan",
3221 s.ccm_pcp = atoi(get_interface_other_config(iface->cfg, "cfm_ccm_pcp",
3223 if (s.interval <= 0) {
3227 extended_str = get_interface_other_config(iface->cfg, "cfm_extended",
3229 s.extended = !strcasecmp("true", extended_str);
3231 opstate_str = get_interface_other_config(iface->cfg, "cfm_opstate", "up");
3232 s.opup = !strcasecmp("up", opstate_str);
3234 ofproto_port_set_cfm(iface->port->bridge->ofproto, iface->ofp_port, &s);
3237 /* Returns true if 'iface' is synthetic, that is, if we constructed it locally
3238 * instead of obtaining it from the database. */
3240 iface_is_synthetic(const struct iface *iface)
3242 return ovsdb_idl_row_is_synthetic(&iface->cfg->header_);
3245 /* Port mirroring. */
3247 static struct mirror *
3248 mirror_find_by_uuid(struct bridge *br, const struct uuid *uuid)
3252 HMAP_FOR_EACH_IN_BUCKET (m, hmap_node, uuid_hash(uuid), &br->mirrors) {
3253 if (uuid_equals(uuid, &m->uuid)) {
3261 bridge_configure_mirrors(struct bridge *br)
3263 const struct ovsdb_datum *mc;
3264 unsigned long *flood_vlans;
3265 struct mirror *m, *next;
3268 /* Get rid of deleted mirrors. */
3269 mc = ovsrec_bridge_get_mirrors(br->cfg, OVSDB_TYPE_UUID);
3270 HMAP_FOR_EACH_SAFE (m, next, hmap_node, &br->mirrors) {
3271 union ovsdb_atom atom;
3273 atom.uuid = m->uuid;
3274 if (ovsdb_datum_find_key(mc, &atom, OVSDB_TYPE_UUID) == UINT_MAX) {
3279 /* Add new mirrors and reconfigure existing ones. */
3280 for (i = 0; i < br->cfg->n_mirrors; i++) {
3281 const struct ovsrec_mirror *cfg = br->cfg->mirrors[i];
3282 struct mirror *m = mirror_find_by_uuid(br, &cfg->header_.uuid);
3284 m = mirror_create(br, cfg);
3287 if (!mirror_configure(m)) {
3292 /* Update flooded vlans (for RSPAN). */
3293 flood_vlans = vlan_bitmap_from_array(br->cfg->flood_vlans,
3294 br->cfg->n_flood_vlans);
3295 ofproto_set_flood_vlans(br->ofproto, flood_vlans);
3296 bitmap_free(flood_vlans);
3299 static struct mirror *
3300 mirror_create(struct bridge *br, const struct ovsrec_mirror *cfg)
3304 m = xzalloc(sizeof *m);
3305 m->uuid = cfg->header_.uuid;
3306 hmap_insert(&br->mirrors, &m->hmap_node, uuid_hash(&m->uuid));
3308 m->name = xstrdup(cfg->name);
3314 mirror_destroy(struct mirror *m)
3317 struct bridge *br = m->bridge;
3320 ofproto_mirror_unregister(br->ofproto, m);
3323 hmap_remove(&br->mirrors, &m->hmap_node);
3330 mirror_collect_ports(struct mirror *m,
3331 struct ovsrec_port **in_ports, int n_in_ports,
3332 void ***out_portsp, size_t *n_out_portsp)
3334 void **out_ports = xmalloc(n_in_ports * sizeof *out_ports);
3335 size_t n_out_ports = 0;
3338 for (i = 0; i < n_in_ports; i++) {
3339 const char *name = in_ports[i]->name;
3340 struct port *port = port_lookup(m->bridge, name);
3342 out_ports[n_out_ports++] = port;
3344 VLOG_WARN("bridge %s: mirror %s cannot match on nonexistent "
3345 "port %s", m->bridge->name, m->name, name);
3348 *out_portsp = out_ports;
3349 *n_out_portsp = n_out_ports;
3353 mirror_configure(struct mirror *m)
3355 const struct ovsrec_mirror *cfg = m->cfg;
3356 struct ofproto_mirror_settings s;
3359 if (strcmp(cfg->name, m->name)) {
3361 m->name = xstrdup(cfg->name);
3365 /* Get output port or VLAN. */
3366 if (cfg->output_port) {
3367 s.out_bundle = port_lookup(m->bridge, cfg->output_port->name);
3368 if (!s.out_bundle) {
3369 VLOG_ERR("bridge %s: mirror %s outputs to port not on bridge",
3370 m->bridge->name, m->name);
3373 s.out_vlan = UINT16_MAX;
3375 if (cfg->output_vlan) {
3376 VLOG_ERR("bridge %s: mirror %s specifies both output port and "
3377 "output vlan; ignoring output vlan",
3378 m->bridge->name, m->name);
3380 } else if (cfg->output_vlan) {
3381 /* The database should prevent invalid VLAN values. */
3382 s.out_bundle = NULL;
3383 s.out_vlan = *cfg->output_vlan;
3385 VLOG_ERR("bridge %s: mirror %s does not specify output; ignoring",
3386 m->bridge->name, m->name);
3390 /* Get port selection. */
3391 if (cfg->select_all) {
3392 size_t n_ports = hmap_count(&m->bridge->ports);
3393 void **ports = xmalloc(n_ports * sizeof *ports);
3398 HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) {
3408 /* Get ports, dropping ports that don't exist.
3409 * The IDL ensures that there are no duplicates. */
3410 mirror_collect_ports(m, cfg->select_src_port, cfg->n_select_src_port,
3411 &s.srcs, &s.n_srcs);
3412 mirror_collect_ports(m, cfg->select_dst_port, cfg->n_select_dst_port,
3413 &s.dsts, &s.n_dsts);
3416 /* Get VLAN selection. */
3417 s.src_vlans = vlan_bitmap_from_array(cfg->select_vlan, cfg->n_select_vlan);
3420 ofproto_mirror_register(m->bridge->ofproto, m, &s);
3423 if (s.srcs != s.dsts) {
3432 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
3434 * This is deprecated. It is only for compatibility with broken device drivers
3435 * in old versions of Linux that do not properly support VLANs when VLAN
3436 * devices are not used. When broken device drivers are no longer in
3437 * widespread use, we will delete these interfaces. */
3439 static void **blocks;
3440 static size_t n_blocks, allocated_blocks;
3442 /* Adds 'block' to a list of blocks that have to be freed with free() when the
3443 * VLAN splinters are reconfigured. */
3445 register_block(void *block)
3447 if (n_blocks >= allocated_blocks) {
3448 blocks = x2nrealloc(blocks, &allocated_blocks, sizeof *blocks);
3450 blocks[n_blocks++] = block;
3453 /* Frees all of the blocks registered with register_block(). */
3455 free_registered_blocks(void)
3459 for (i = 0; i < n_blocks; i++) {
3465 /* Returns true if VLAN splinters are enabled on 'iface_cfg', false
3468 vlan_splinters_is_enabled(const struct ovsrec_interface *iface_cfg)
3472 value = get_interface_other_config(iface_cfg, "enable-vlan-splinters", "");
3473 return !strcmp(value, "true");
3476 /* Figures out the set of VLANs that are in use for the purpose of VLAN
3479 * If VLAN splinters are enabled on at least one interface and any VLANs are in
3480 * use, returns a 4096-bit bitmap with a 1-bit for each in-use VLAN (bits 0 and
3481 * 4095 will not be set). The caller is responsible for freeing the bitmap,
3484 * If VLANs splinters are not enabled on any interface or if no VLANs are in
3485 * use, returns NULL.
3487 * Updates 'vlan_splinters_enabled_anywhere'. */
3488 static unsigned long int *
3489 collect_splinter_vlans(const struct ovsrec_open_vswitch *ovs_cfg)
3491 unsigned long int *splinter_vlans;
3492 struct sset splinter_ifaces;
3493 const char *real_dev_name;
3494 struct shash *real_devs;
3495 struct shash_node *node;
3499 /* Free space allocated for synthesized ports and interfaces, since we're
3500 * in the process of reconstructing all of them. */
3501 free_registered_blocks();
3503 splinter_vlans = bitmap_allocate(4096);
3504 sset_init(&splinter_ifaces);
3505 vlan_splinters_enabled_anywhere = false;
3506 for (i = 0; i < ovs_cfg->n_bridges; i++) {
3507 struct ovsrec_bridge *br_cfg = ovs_cfg->bridges[i];
3510 for (j = 0; j < br_cfg->n_ports; j++) {
3511 struct ovsrec_port *port_cfg = br_cfg->ports[j];
3514 for (k = 0; k < port_cfg->n_interfaces; k++) {
3515 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[k];
3517 if (vlan_splinters_is_enabled(iface_cfg)) {
3518 vlan_splinters_enabled_anywhere = true;
3519 sset_add(&splinter_ifaces, iface_cfg->name);
3520 vlan_bitmap_from_array__(port_cfg->trunks,
3526 if (port_cfg->tag && *port_cfg->tag > 0 && *port_cfg->tag < 4095) {
3527 bitmap_set1(splinter_vlans, *port_cfg->tag);
3532 if (!vlan_splinters_enabled_anywhere) {
3533 free(splinter_vlans);
3534 sset_destroy(&splinter_ifaces);
3538 HMAP_FOR_EACH (br, node, &all_bridges) {
3540 ofproto_get_vlan_usage(br->ofproto, splinter_vlans);
3544 /* Don't allow VLANs 0 or 4095 to be splintered. VLAN 0 should appear on
3545 * the real device. VLAN 4095 is reserved and Linux doesn't allow a VLAN
3546 * device to be created for it. */
3547 bitmap_set0(splinter_vlans, 0);
3548 bitmap_set0(splinter_vlans, 4095);
3550 /* Delete all VLAN devices that we don't need. */
3552 real_devs = vlandev_get_real_devs();
3553 SHASH_FOR_EACH (node, real_devs) {
3554 const struct vlan_real_dev *real_dev = node->data;
3555 const struct vlan_dev *vlan_dev;
3556 bool real_dev_has_splinters;
3558 real_dev_has_splinters = sset_contains(&splinter_ifaces,
3560 HMAP_FOR_EACH (vlan_dev, hmap_node, &real_dev->vlan_devs) {
3561 if (!real_dev_has_splinters
3562 || !bitmap_is_set(splinter_vlans, vlan_dev->vid)) {
3563 struct netdev *netdev;
3565 if (!netdev_open(vlan_dev->name, "system", &netdev)) {
3566 if (!netdev_get_in4(netdev, NULL, NULL) ||
3567 !netdev_get_in6(netdev, NULL)) {
3568 vlandev_del(vlan_dev->name);
3570 /* It has an IP address configured, so we don't own
3571 * it. Don't delete it. */
3573 netdev_close(netdev);
3580 /* Add all VLAN devices that we need. */
3581 SSET_FOR_EACH (real_dev_name, &splinter_ifaces) {
3584 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
3585 if (!vlandev_get_name(real_dev_name, vid)) {
3586 vlandev_add(real_dev_name, vid);
3593 sset_destroy(&splinter_ifaces);
3595 if (bitmap_scan(splinter_vlans, 0, 4096) >= 4096) {
3596 free(splinter_vlans);
3599 return splinter_vlans;
3602 /* Pushes the configure of VLAN splinter port 'port' (e.g. eth0.9) down to
3605 configure_splinter_port(struct port *port)
3607 struct ofproto *ofproto = port->bridge->ofproto;
3608 uint16_t realdev_ofp_port;
3609 const char *realdev_name;
3610 struct iface *vlandev, *realdev;
3612 ofproto_bundle_unregister(port->bridge->ofproto, port);
3614 vlandev = CONTAINER_OF(list_front(&port->ifaces), struct iface,
3617 realdev_name = get_port_other_config(port->cfg, "realdev", NULL);
3618 realdev = iface_lookup(port->bridge, realdev_name);
3619 realdev_ofp_port = realdev ? realdev->ofp_port : 0;
3621 ofproto_port_set_realdev(ofproto, vlandev->ofp_port, realdev_ofp_port,
3625 static struct ovsrec_port *
3626 synthesize_splinter_port(const char *real_dev_name,
3627 const char *vlan_dev_name, int vid)
3629 struct ovsrec_interface *iface;
3630 struct ovsrec_port *port;
3632 iface = xzalloc(sizeof *iface);
3633 iface->name = xstrdup(vlan_dev_name);
3634 iface->type = "system";
3636 port = xzalloc(sizeof *port);
3637 port->interfaces = xmemdup(&iface, sizeof iface);
3638 port->n_interfaces = 1;
3639 port->name = xstrdup(vlan_dev_name);
3640 port->vlan_mode = "splinter";
3641 port->tag = xmalloc(sizeof *port->tag);
3643 port->key_other_config = xmalloc(sizeof *port->key_other_config);
3644 port->key_other_config[0] = "realdev";
3645 port->value_other_config = xmalloc(sizeof *port->value_other_config);
3646 port->value_other_config[0] = xstrdup(real_dev_name);
3647 port->n_other_config = 1;
3649 register_block(iface);
3650 register_block(iface->name);
3651 register_block(port);
3652 register_block(port->interfaces);
3653 register_block(port->name);
3654 register_block(port->tag);
3655 register_block(port->key_other_config);
3656 register_block(port->value_other_config);
3657 register_block(port->value_other_config[0]);
3662 /* For each interface with 'br' that has VLAN splinters enabled, adds a
3663 * corresponding ovsrec_port to 'ports' for each splinter VLAN marked with a
3664 * 1-bit in the 'splinter_vlans' bitmap. */
3666 add_vlan_splinter_ports(struct bridge *br,
3667 const unsigned long int *splinter_vlans,
3668 struct shash *ports)
3672 /* We iterate through 'br->cfg->ports' instead of 'ports' here because
3673 * we're modifying 'ports'. */
3674 for (i = 0; i < br->cfg->n_ports; i++) {
3675 const char *name = br->cfg->ports[i]->name;
3676 struct ovsrec_port *port_cfg = shash_find_data(ports, name);
3679 for (j = 0; j < port_cfg->n_interfaces; j++) {
3680 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[j];
3682 if (vlan_splinters_is_enabled(iface_cfg)) {
3683 const char *real_dev_name;
3686 real_dev_name = iface_cfg->name;
3687 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
3688 const char *vlan_dev_name;
3690 vlan_dev_name = vlandev_get_name(real_dev_name, vid);
3692 && !shash_find(ports, vlan_dev_name)) {
3693 shash_add(ports, vlan_dev_name,
3694 synthesize_splinter_port(
3695 real_dev_name, vlan_dev_name, vid));
3704 mirror_refresh_stats(struct mirror *m)
3706 struct ofproto *ofproto = m->bridge->ofproto;
3707 uint64_t tx_packets, tx_bytes;
3710 size_t stat_cnt = 0;
3712 if (ofproto_mirror_get_stats(ofproto, m, &tx_packets, &tx_bytes)) {
3713 ovsrec_mirror_set_statistics(m->cfg, NULL, NULL, 0);
3717 if (tx_packets != UINT64_MAX) {
3718 keys[stat_cnt] = "tx_packets";
3719 values[stat_cnt] = tx_packets;
3722 if (tx_bytes != UINT64_MAX) {
3723 keys[stat_cnt] = "tx_bytes";
3724 values[stat_cnt] = tx_bytes;
3728 ovsrec_mirror_set_statistics(m->cfg, keys, values, stat_cnt);